[Event "?"] [Site "?"] [Date "2021.04.15"] [Round "?"] [White "Bird's Eröffnung"] [Black "mit 1...d5"] [Result "*"] [ECO "A03"] [Annotator "Iccf GM Matjaz,Pirs"] [PlyCount "63"] {[%evp 0,63,28,-25,-39,-31,-10,-25,-18,-9,-14,-16,-11,-7,-6,-5,37,48,95,72,50, -124,-85,-45,-45,-11,-18,0,-8,16,37,30,47,24,37,33,36,76,46,68,140,130,132,132, 133,133,134,130,130,130,157,148,150,137,144,123,221,119,115,97,118,125,143,126, 202,137]} 1. f4 d5 {[%csl Gb2,Rb7,Gc3,Rc6,Gd4,Rd5,Ge3,Re6,Gf2,Gf4,Rf7][%CAl Gf4e5,Rd5e4,Rc8g4,Rf3g2,Rf3g4,Re4f5]} 2. Nf3 (2. e3 c5 (2... Nf6 3. Be2 (3. b3 g6 (3... d4 4. Bd3 (4. d3 dxe3 5. Bxe3 Nc6 6. Nf3 Bg4 7. Be2 Nd5 8. Bd2 e6 9. Nc3 Bc5 10. Nxd5 Qxd5 11. h3 Bf5 12. Bc3 O-O 13. Qd2 b5 14. Nh4 b4 15. Nxf5 bxc3 {Scott,R (1728)-Linden,M ICCF 2013 0-1}) 4... Nc6 (4... e5 5. fxe5 dxe3 6. Nf3 Ng4 7. dxe3 Nxe5 8. Nxe5 Qg5 9. Nf3 Qxg2 10. Rg1 Qh3 11. Bb2 Bg4 12. Rg3 Qh5 13. Be4 Nc6 14. Qd3 Bxf3 15. Bxf3 Qxh2 16. Bxc6+ {Menten,R-Grech,G ICCF 2005 1-0 (34)}) 5. Nf3 Nb4 6. Qe2 Bg4 7. Bb2 dxe3 8. dxe3 Nxd3+ 9. cxd3 Bxf3 10. gxf3 Qd7 11. Nc3 e6 12. O-O-O Nd5 13. Nxd5 exd5 14. Rhg1 f6 15. e4 { Chavez,R-Schmidt,M (2282) ICCF 2007 1/2 (68)}) (3... Bf5 4. Nc3 (4. Be2 Nc6 5. Nf3 d4 6. O-O dxe3 7. dxe3 Qxd1 8. Bxd1 e6 9. a3 O-O-O 10. b4 Be7 11. Nbd2 Ne4 12. Nxe4 Bxe4 13. Bb2 Rhg8 14. Rc1 a5 15. b5 Nb8 {Wuttke,J (2263)-Van tricht,M (2307) ICCF 2010 1/2 (31)}) 4... Nc6 5. Bb5 Qd6 6. Nge2 O-O-O 7. d3 Bg4 8. O-O a6 9. Bxc6 Qxc6 10. h3 Qxc3 11. Nxc3 Bxd1 12. Rxd1 g6 13. Bb2 Bg7 14. Ne2 Nh5 15. Bxg7 {Scott,R (1728)-Potter,C (1587) ICCF 2013 1/2}) (3... Nc6 4. Bb5 Bd7 5. c3 e5 6. c4 d4 7. Nf3 Bc5 8. a3 O-O 9. Ng5 Re8 10. Qf3 h6 11. Nh3 Bg4 12. Qf2 Ne4 13. Qf1 Qd7 14. d3 Nc3 15. Nf2 {Chugg,M (1275)-Selby,R (1250) ICCF 2020 1-0 (50)}) 4. Bb2 Bg7 5. c4 e6 6. Na3 O-O 7. Be2 Re8 8. Nf3 Bf8 9. O-O a6 10. Ne5 Nbd7 11. Bf3 Nxe5 12. fxe5 Bxa3 13. Bxa3 Nd7 14. d4 c6 {Lund,S (1340) -Arvidsson,D (1285) ICCF 2019 1-0}) (3. d3 g6 4. Nd2 Bg7 5. h3 Nc6 6. a3 Bd7 7. g4 e6 8. Qf3 Qe7 9. f5 exf5 10. gxf5 Bxf5 11. c3 O-O 12. Bg2 Rad8 13. e4 dxe4 14. dxe4 Be6 {Chugg,M (1372)-Gaughan,J (1499) ICCF 2016 0-1 (50)}) 3... c5 4. Nf3 (4. d3 Nc6 5. Nf3 Bg4 6. O-O Qc7 7. b3 e5 8. fxe5 Nxe5 9. Nxe5 Bxe2 10. Qxe2 Qxe5 11. c3 Bd6 12. g3 O-O-O 13. Bb2 h5 14. Nd2 Qe6 15. Nf3 Qg4 {Walsh,H (1736)-Cox,R (1777) ICCF 2016 0-1}) 4... Nc6 5. O-O (5. Bb5 Bd7 6. O-O e6 7. b3 Bd6 8. Bb2 O-O 9. Bxc6 Bxc6 10. Ne5 Qc7 11. Rf3 Nd7 12. Rh3 Bxe5 13. fxe5 g6 14. Qg4 Nxe5 15. Qg3 d4 16. exd4 cxd4 {Renard,S-Jaumin,J (1668) ICCF 2015 1-0 (38)}) 5... e6 6. b3 (6. Ne5 Bd6 7. Nxc6 bxc6 8. c4 O-O 9. Qc2 e5 10. cxd5 cxd5 11. fxe5 Bxe5 12. Nc3 Be6 13. h3 Rc8 14. Qa4 c4 15. Qxa7 Ne4 16. Nxe4 dxe4 17. Bd1 Qh4 {Ghinelli,L-Ebner,J (2271) ICCF 2007 0-1 (28)}) 6... Bd7 7. Bb2 Be7 8. Ne5 O-O 9. Bf3 (9. d3 d4 10. exd4 (10. Nxc6 Bxc6 11. e4 b5 12. Nd2 a5 13. c4 dxc3 14. Bxc3 a4 15. Qe1 b4 16. Bb2 a3 17. Bxf6 Bxf6 18. e5 Be7 19. Bf3 Bd5 20. Qe3 Qd7 21. Rad1 Bxf3 {Kazmierczuk,Z (2128)-Sisák,R (2205) ICCF 2017 0-1 (93)}) (10. Nxd7 Qxd7 11. e4 e5 12. f5 Ne8 13. Nd2 Bg5 14. g3 f6 15. Nf3 Be3+ 16. Kg2 {Thommen,J (1642)-Fodor,C (1584) ICCF 2019 1-0 (34)}) 10... cxd4 11. Bf3 Rc8 12. Nd2 Nb4 13. Bxb7 Rc7 14. Qf3 Be8 15. Ndc4 Nfd5 16. Bxd5 exd5 17. Na3 f6 18. Ng4 Bc5 19. Kh1 Re7 20. Qg3 Bd7 {Korman,J (1868)-Carrera O.,A ICCF 2016 0-1 (44)}) (9. c4 d4 10. Qe1 Qb6 11. Bf3 Rad8 12. Na3 a6 13. Nc2 dxe3 14. Qxe3 h5 15. h3 Be8 16. Nd3 a5 17. Rac1 Nd4 18. Nxd4 cxd4 19. Qf2 a4 20. b4 a3 { Lagergren,H (2018)-De Meye,J (1950) ICCF 2007 1-0 (48)}) 9... Qc7 10. Qe2 a6 11. c4 dxc4 12. bxc4 Rfd8 13. d3 Be8 14. Nd2 {Bito,L-Rice,R (1646) ICCF 2007 1-0 (35)}) (2... Nc6 3. Bb5 g6 4. Nf3 Bd7 (4... Bg7 5. O-O (5. d4 Bg4 6. O-O Nh6 7. c4 O-O 8. Bxc6 bxc6 9. Nc3 dxc4 10. Qa4 Be6 11. Qxc6 Qd7 12. Qa6 Ng4 13. Rd1 Qd6 14. Qa4 Rfb8 15. d5 Bd7 16. Qxc4 Rb4 {Guzman,H-Rosser,G (1908) ICCF 2013 0-1 (40)}) 5... Bd7 6. d3 a6 7. Ba4 Nf6 8. c3 O-O 9. Nbd2 Rb8 10. Bc2 Re8 11. d4 Bg4 12. Qe1 Qc8 13. Ne5 Bf5 14. Bxf5 Qxf5 15. Qe2 Ra8 16. c4 {Oren,I (2309)-Lloveras Rebell,J (2271) ICCF 2007 0-1 (75)}) 5. Be2 (5. d4 Bg7 6. O-O Nf6 7. c4 O-O 8. cxd5 Nxd5 9. Nc3 a6 10. Bd3 Ncb4 11. Nxd5 Nxd5 12. Kh1 c5 13. dxc5 Nb4 14. Be2 Bb5 15. Bxb5 axb5 16. Bd2 Nd3 {Bito,L (2000)-Aguilar Melián,A (2245) ICCF 2010 0-1 (77)}) 5... Bg7 6. O-O Nf6 7. c4 dxc4 8. Bxc4 Na5 9. Be2 c5 10. Nc3 O-O 11. e4 Be6 12. d3 Qd7 13. Ng5 Nc6 14. Nxe6 {Elias,B (1752) -Randolph,D (1422) ICCF 2010 1-0 (40)}) (2... g6 3. c4 (3. d4 Nc6 (3... c5 4. c4 Nf6 5. cxd5 Bg7 6. Qa4+ Nbd7 7. dxc5 O-O 8. Qd4 Ng4 9. Qb4 a5 10. Qc4 b6 11. Nc3 Nxc5 12. Nf3 e6 13. d6 Bb7 14. Be2 Rc8 15. O-O {Gibson,T (1902)-Armién,B ICCF 2013 0-1 (38)}) 4. c4 Nf6 5. cxd5 Bg4 6. Be2 Bxe2 7. Qxe2 Nxd5 8. Nc3 Bg7 9. Nf3 O-O 10. O-O Qd7 11. Bd2 Rad8 12. Nxd5 Qxd5 13. Rfc1 a6 14. a4 Qb3 { Bito,L (2000)-Nad,R (1959) ICCF 2011 1-0}) (3. Nc3 Nc6 4. Nf3 a6 5. d4 Bg7 6. Bd2 Nf6 7. Bd3 Nb4 8. O-O O-O 9. Be2 Bf5 10. a3 Nc6 11. Be1 Qd6 12. Ne5 Ne4 13. Nxe4 Bxe4 14. Nd3 b6 {Bito,L (2078)-Simoncic,L (2105) ICCF 2013 1-0 (48)}) 3... d4 4. d3 (4. exd4 Bg7 5. Nf3 Nh6 6. d5 e6 7. d4 exd5 8. Qe2+ Be6 9. cxd5 Qxd5 10. Nc3 Qa5 11. Qb5+ Qxb5 12. Nxb5 Na6 13. Bd2 O-O 14. Rc1 Rad8 15. Nxc7 Nxc7 { Pitono,P-Gupta,A (2179) ICCF 2018 0-1 (57)}) 4... dxe3 5. Bxe3 Nh6 6. Nf3 Bg7 7. Nc3 Nf5 8. Bf2 Nc6 9. Be2 O-O 10. Qd2 Re8 11. O-O Bh6 12. g4 Nfd4 13. Bd1 Nxf3+ 14. Bxf3 {Bito,L (2132)-Pichushkin,V (2209) ICCF 2016 0-1 (59)}) (2... c6 3. b3 Nd7 4. Bb2 e6 5. Nf3 Ne7 6. Nc3 Qc7 7. Bd3 e5 8. fxe5 Nxe5 9. Nxe5 Qxe5 10. Qf3 g6 11. Na4 Qc7 12. Bxh8 b6 13. g4 Be6 14. O-O-O {Elias,B (1618) -O'Neill,C ICCF 2009 1-0 (26)}) (2... Bf5 3. d4 Nd7 4. Nf3 e6 5. c4 c6 6. Qb3 Qb6 7. c5 Qxb3 8. axb3 Be7 9. Nc3 Ngf6 10. h3 h5 11. Ng5 h4 12. Be2 Nh5 13. Bxh5 Rxh5 14. Nf3 {Brien,A-Chevrier,J ICCF 2007 0-1 (36)}) (2... e6 3. b3 Nf6 4. Bb2 a6 5. Bd3 Bc5 6. Nf3 Nc6 7. O-O d4 8. Qe1 b5 9. Kh1 dxe3 10. a3 Nd4 { 0-1 (10) Chongstitwattana,C-Williams,R (1204) ICCF 2017}) (2... b6 3. Bd3 Bb7 4. Nf3 Nf6 5. Nc3 g6 6. b3 Bg7 7. Bb2 O-O 8. Ne2 c5 9. Ng3 Nc6 10. a3 d4 11. e4 Nh5 12. Nxh5 gxh5 13. O-O Qc7 14. e5 {Leneveu,E (1520)-Mouawad,G (1692) ICCF 2018 1-0}) 3. b3 (3. Nf3 Nc6 (3... Bg4 4. Be2 Nf6 5. O-O e6 6. Ne5 Bxe2 7. Qxe2 Bd6 8. Nc3 O-O 9. d4 {1-0 (9) Vila Nova,R (1564)-Neu,A ICCF 2011}) 4. Bb5 (4. b3 Bg4 (4... a6 5. Be2 Nf6 6. Ne5 Nxe5 7. fxe5 Ne4 8. O-O g6 9. d3 Ng5 10. h4 Ne6 11. d4 Bg7 12. Nc3 O-O 13. Bf3 cxd4 14. exd4 Nc7 15. h5 Bf5 16. h6 { Tatundu,A-Hatigoran,S ICCF 2018 1-0}) 5. Bb2 Nf6 6. Be2 e6 (6... g6 7. O-O Bg7 8. Ne5 Bxe2 9. Qxe2 O-O 10. Nxc6 bxc6 11. d3 d4 12. e4 Qd7 13. Nd2 Qc7 14. Ba3 Nd7 15. e5 e6 16. Ne4 Qa5 {Williamson,D (1947)-Clark,M (1800) ICCF 2014 1-0 (42)}) 7. O-O Rc8 (7... Bd6 8. Ne5 Bxe2 9. Qxe2 O-O (9... Bxe5 10. fxe5 Nd7 11. d4 Qb6 12. c3 O-O 13. Nd2 f6 14. exf6 Rxf6 15. Nf3 Re8 16. c4 cxd4 17. Nxd4 { Andreassen,E (2314)-Øvergaard,J (2206) ICCF 2007 1-0 (54)}) 10. Nxc6 bxc6 11. Nc3 Re8 12. Na4 Nd7 13. c4 Nb6 14. Qg4 g6 {0-1 (14) Chongstitwattana,C-Grynyuk, V ICCF 2017}) (7... Be7 8. Ne5 Bxe2 9. Qxe2 Qc7 (9... O-O 10. Nxc6 bxc6 11. d3 Rb8 12. Nd2 Rb7 13. e4 Qb6 14. c4 dxe4 15. dxe4 Rd8 16. e5 {Carter,M (1827) -Lam Choong Wai,E ICCF 2013 1-0 (39)}) 10. Nf3 O-O 11. d3 Rad8 12. Nbd2 d4 13. a3 dxe3 14. Qxe3 b6 15. h3 Nd4 16. Ne1 Nc6 17. Rc1 c4 18. Kh1 cxd3 19. Nxd3 { Accola,B-Croker,B ICCF 2018 0-1 (25)}) 8. d3 Bd6 9. Nbd2 Bc7 10. Ne5 Bxe2 11. Qxe2 Nxe5 12. fxe5 Nd7 13. Qh5 O-O 14. Rf3 Qe7 {0-1 (14) Borisek,A (1611) -Tavcar,V ICCF 2007}) (4. d4 Bf5 (4... Bg4 5. c3 Bxf3 6. Qxf3 Nf6 7. Nd2 e6 8. Bd3 Qb6 9. O-O O-O-O 10. Rb1 Kb8 11. b4 cxd4 12. cxd4 h5 13. a3 Rc8 14. Nb3 Ne7 15. Bd2 Nf5 16. Nc5 {Prystenski,A (2255)-Demian,V (2407) ICCF 2008 1-0 (54)}) 5. Bb5 (5. c4 Nf6 6. Nc3 e6 7. Bd3 Bxd3 8. Qxd3 Nb4 9. Qd2 dxc4 10. Ne5 cxd4 11. exd4 Qxd4 12. Qxd4 Nc2+ {0-1 (12) Grønbech,T (1951)-Zordick,M ICCF 2016}) 5... Nf6 (5... c4 6. Ne5 Qa5+ 7. Nc3 Rc8 8. Bd2 Qd8 9. g4 a6 10. Nxc6 bxc6 11. Bxa6 Bxg4 12. Qxg4 Rc7 13. Na4 Ra7 14. Nc5 Nf6 15. Qh4 e6 16. Bb7 Bxc5 17. Bxc6+ {Mill-Wilson,G (1631)-Sedstrem,A (1587) ICCF 2016 1-0 (31)}) 6. dxc5 a6 7. Bxc6+ bxc6 8. b4 a5 9. c3 g6 10. Nd4 Bd7 11. O-O Bg7 12. Nd2 Qc7 13. h3 O-O 14. Bb2 e5 15. fxe5 Qxe5 {Snijders,J (2111)-Sousa,C (2077) ICCF 2018 1-0 (52)}) 4... Bg4 (4... Bd7 5. Bxc6 (5. O-O a6 (5... e6 6. Bxc6 Bxc6 7. Ne5 Qc7 8. b3 Ne7 9. Bb2 Nf5 10. Qe1 Be7 11. c4 O-O 12. Nc3 Rad8 13. g4 Nh4 14. cxd5 exd5 15. d4 c4 16. Rd1 b5 17. bxc4 {Gultom,P (1758)-Wenardi,W ICCF 2018 0-1}) 6. Bxc6 Bxc6 7. b3 Nf6 8. Bb2 e6 9. Ne5 Qc7 10. d3 Bd6 11. Nd2 O-O-O 12. Ndf3 h6 13. Qe1 Rhg8 14. a4 Ne8 15. d4 g5 16. fxg5 hxg5 {Gultom,P (1712)-Kemperman,H (1709) ICCF 2017 0-1}) 5... Bxc6 6. d3 (6. O-O Nf6 7. h3 e6 8. d3 Be7 9. Nbd2 O-O 10. Ne5 h6 11. Ndf3 Nh7 12. g4 g5 13. fxg5 Nxg5 14. h4 Nxf3+ 15. Nxf3 Bxh4 16. e4 Kh7 {Gonet Boisson,G-Humbert,P ICCF 2008 0-1 (28)}) 6... Nf6 7. O-O e6 8. b3 Be7 9. Bb2 (9. Ne5 O-O 10. Nxc6 bxc6 11. Nd2 a5 12. Nf3 Bd6 13. Bb2 Ng4 14. Qe1 Qc7 15. Qg3 f5 16. h3 Nxe3 17. Rfe1 Bxf4 {Gonet Boisson,G-Humbert,P ICCF 2009 0-1}) 9... O-O 10. Qe1 b6 11. Ne5 Bb7 12. Nd2 Rc8 13. e4 dxe4 14. dxe4 c4 15. Nexc4 b5 16. Ne3 {Ward,B (1621)-Palmer,V (1623) ICCF 2018 0-1}) (4... Qc7 5. O-O Nf6 6. d3 Bg4 7. Nbd2 a6 8. Bxc6+ Qxc6 9. Qe1 Bf5 10. b3 g6 11. Bb2 Bg7 12. e4 Bg4 13. Qh4 Bxf3 14. Nxf3 dxe4 15. dxe4 Qxe4 16. Rae1 {Ward,B (1670) -Zigmond,A (1689) ICCF 2015 0-1 (44)}) (4... e6 5. O-O (5. Bxc6+ bxc6 6. b3 Ba6 (6... Bd6 7. O-O Nh6 8. Nc3 (8. c4 O-O 9. Nc3 f6 10. Qc2 Re8 11. d3 Qc7 12. e4 Bxf4 13. Bxf4 Qxf4 14. Rae1 Ng4 15. exd5 cxd5 16. cxd5 Qd6 17. h3 Nh6 18. Nd2 Qd8 19. Nde4 e5 {Dreisch,J (2031)-Hjorth,J (2027) ICCF 2017 1/2 (34)}) 8... O-O 9. d3 f6 10. e4 Nf7 11. Qe2 e5 12. f5 c4 13. dxc4 dxe4 14. Rd1 exf3 15. Qxf3 Bc5+ 16. Kh1 Bd4 17. Ne4 Bxa1 18. Rxd8 {Arnold,G (2267)-Belchev,B (2210) ICCF 2018 0-1}) 7. d3 Bd6 8. O-O Qf6 9. Bd2 Qe7 10. Qe1 Nh6 11. c4 Nf5 12. Nc3 O-O 13. Na4 f6 14. g4 Nh6 15. Qg3 g5 16. e4 {Arnold,G (2216)-Darmanto,H (2154) ICCF 2017 1-0 (46)}) 5... Nge7 (5... Bd6 6. Nc3 Nge7 7. b3 a6 8. Bxc6+ Nxc6 9. Bb2 O-O 10. Ne2 b5 11. Ne5 Ne7 12. d4 c4 13. c3 Bb7 14. bxc4 Nf5 15. Qc1 dxc4 16. a4 f6 {Vila Nova,R (1346)-Belchev,B (2308) ICCF 2015 0-1}) 6. Nc3 a6 7. Be2 Nf5 8. d3 Be7 9. Bd2 O-O 10. Qc1 b5 11. a4 b4 12. Nd1 a5 13. c3 Bb7 14. Nf2 Nd6 15. Qc2 Qb6 16. Ne5 {Hasidume,S (1849)-Yeung,C (1725) ICCF 2009 1-0 (41)}) ( 4... a6 5. Bxc6+ bxc6 6. O-O Bg4 7. b3 e6 8. Ba3 Nf6 9. d4 Bxf3 10. Rxf3 Qa5 11. Qd2 Qxd2 12. Nxd2 cxd4 13. Bxf8 Kxf8 14. exd4 g6 15. Rc3 Rc8 16. Rc5 { Bruce,R (1884)-Vermeulen,E (1877) ICCF 2013 1-0 (26)}) (4... Nf6 5. O-O e6 6. d3 Bd6 7. Bxc6+ bxc6 8. c4 O-O 9. Nc3 Qc7 10. Qe1 Ba6 11. b3 Nd7 12. Qh4 Rae8 13. e4 f6 14. Ne2 Bc8 15. Bd2 Rf7 16. Rae1 {Darias Mateos,A (1842)-Lagarejos Gonzalez,E (1823) ICCF 2012 1/2 (28)}) 5. Bxc6+ (5. O-O e6 6. b3 Nf6 7. Bb2 Be7 8. Qe1 O-O 9. Bxc6 bxc6 10. Ne5 Qc7 11. Nxg4 Nxg4 12. d3 Bf6 13. Bxf6 Nxf6 14. Nd2 a5 15. a4 Rab8 16. Qg3 Qb6 {Gultom,P (1758)-Prawira,B (2032) ICCF 2018 0-1 (30)}) 5... bxc6 6. O-O Nf6 7. Qe1 Bxf3 8. Rxf3 e6 9. b3 Qa5 10. Bb2 Ne4 11. Qh4 Nxd2 12. Bc3 Nxf3+ 13. gxf3 Qb6 14. Bb2 d4 {Ward,B (1687)-White,R (1768) ICCF 2016 1/2 (30)}) (3. d3 Nf6 4. Ne2 h5 5. d4 Bg4 6. h3 Bf5 7. Ng3 Be4 8. c3 e6 9. Bb5+ Nbd7 10. O-O h4 11. Ne2 a6 12. Bd3 c4 13. Bxe4 Nxe4 14. Nd2 Ndf6 { Chugg,M (1318)-Collins,E (1880) ICCF 2018 0-1 (48)}) (3. Bb5+ Bd7 4. Nc3 Nf6 5. Nf3 Bxb5 6. Nxb5 e6 7. b3 Nc6 8. Bb2 a6 9. Nc3 Bd6 10. O-O O-O 11. d4 Rc8 12. Re1 cxd4 13. Nxd4 Nxd4 14. Qxd4 Bc5 {Grønbech,T (1431)-Pheby,I (2384) ICCF 2019 0-1}) 3... Nc6 (3... d4 4. Nf3 Nf6 5. Bb2 dxe3 6. Bc4 e6 7. O-O Be7 8. Qe2 O-O 9. dxe3 b6 10. Na3 a6 11. Rad1 Qc7 12. Bd3 Nbd7 13. e4 Nh5 14. g3 Bb7 15. Ng5 {Tauber,H (2288)-Jacobs,B ICCF 2005 1-0 (46)}) 4. Bb5 Bd7 5. Bb2 e6 6. Nf3 Nf6 7. O-O Be7 (7... Bd6 8. Bxc6 Bxc6 9. Ne5 O-O 10. d3 Qe7 (10... Re8 11. Nd2 Rc8 12. Qe2 Nd7 13. Rf3 Nxe5 14. fxe5 Bc7 15. Rh3 h6 16. Rf1 Re7 17. Nf3 Rd7 18. Qf2 Qf8 19. Qh4 {Guzman,H-Grummitt,W (2037) ICCF 2013 0-1 (32)}) 11. Nd2 Be8 12. Ng4 Nxg4 13. Qxg4 f6 14. Rae1 Bc6 15. e4 dxe4 16. dxe4 Bc7 17. a4 a6 18. Qh4 Rfd8 19. Nc4 {Nørholm Jensen,L-Roy Laguens,A ICCF 2011 0-1 (33)}) (7... Qb6 8. Bxc6 Bxc6 9. d3 Bd6 10. Qe2 O-O-O 11. a4 Rdg8 12. a5 Qc7 13. Nbd2 Qe7 14. Ne5 Bxe5 15. Bxe5 Nd7 16. Nf3 Nxe5 17. Nxe5 Be8 18. Rfb1 f6 19. Nf3 { Clayton,G (1643)-McGirr,J ICCF 2015 0-1 (28)}) 8. Bxc6 (8. Qe2 a6 (8... O-O 9. d3 a6 10. Bxc6 Bxc6 11. Ne5 Be8 12. Nd2 Nd7 13. Ng4 f6 14. e4 d4 15. c3 h5 16. Nf2 e5 17. f5 Bf7 18. Nf3 Bd6 19. c4 b5 {Bruce,R (1971)-Larson,M (1796) ICCF 2017 1-0 (27)}) 9. Bxc6 Bxc6 10. Ne5 Qc7 11. d3 b6 12. Nxc6 Qxc6 13. Nd2 b5 14. Nf3 Qb6 15. Ne5 Rd8 16. a4 b4 17. Rae1 Qc7 18. Rf3 O-O 19. Ref1 g6 {Andreassen, E (2157)-Mogstad,O (1912) ICCF 2010 1/2 (57)}) (8. Nc3 O-O 9. Bd3 {1-0 (9) Pivirotto,F (1841)-Ranieri,A (1763) ICCF 2020}) (8. d3 O-O (8... Qb6 9. Bxc6 Bxc6 10. Ne5 O-O 11. Nd2 Be8 12. Rf3 Nd7 13. Rg3 Nxe5 14. fxe5 f5 15. exf6 Bxf6 16. Bxf6 Rxf6 17. Qg4 Bg6 18. Rf1 Rxf1+ 19. Kxf1 Rf8+ {Modestino,M (2216) -Velde,M (2167) ICCF 2018 1/2 (30)}) 9. Nbd2 Rc8 (9... a6 10. Bxc6 Bxc6 11. Ne5 Qc7 12. Ndf3 Rac8 13. Qe2 Bd6 14. Rae1 h6 15. e4 dxe4 16. Nxc6 exf3 17. Qxf3 Qxc6 18. Qxc6 Rxc6 {0-1 (18) Clayton,G (1725)-Cook,P (1584) ICCF 2014}) (9... Ng4 10. Qe1 Nb4 11. Bxd7 Qxd7 12. Qg3 Bf6 13. Bxf6 Nxf6 14. Ne5 Qc7 15. c3 Nc6 16. Rae1 Qa5 17. Ndf3 Nxe5 18. fxe5 Nd7 19. e4 d4 20. cxd4 cxd4 21. Re2 { Guzman,H-Petters Merino,O (2064) ICCF 2013 0-1 (34)}) 10. Kh1 Ng4 11. Qe2 Qc7 12. Rac1 f6 13. e4 dxe4 14. dxe4 Qxf4 15. h3 Nh6 16. Ne5 Nd4 17. Rxf4 Nxe2 18. Bxe2 fxe5 19. Rxf8+ Rxf8 {Nenneman,D (2065)-Lagergren,H (1913) ICCF 2017 1/2}) 8... Bxc6 9. Ne5 Rc8 (9... O-O 10. Nxc6 (10. d3 Nd7 (10... Be8 11. Nd2 Bb5 12. a4 Ba6 13. Rf3 Qd6 14. Rg3 d4 15. e4 g6 16. Qf3 Qc7 17. Rf1 Nd7 18. Nxd7 Qxd7 19. f5 Bd6 20. Rh3 exf5 {Shannon,P (2018)-Fausey,V (1741) ICCF 2013 1-0 (27)}) 11. Qg4 Nxe5 12. Bxe5 Bf6 13. Nd2 Bxe5 14. fxe5 f5 15. exf6 Rxf6 16. Rxf6 Qxf6 17. Rf1 Qe5 18. Qf4 Qxf4 19. exf4 d4 20. Nc4 Kf8 21. Ne5 Bd5 {Bochev,K (2479) -Steveson,B (2043) ICCF 2006 1-0 (30)}) 10... bxc6 11. d3 (11. Qf3 Nd7 (11... Ne4 12. d3 Bf6 13. Be5 Nd6 14. Nd2 Bxe5 15. fxe5 Nf5 16. Qf2 d4 17. exd4 cxd4 18. Nc4 c5 19. Qf3 Qc7 20. Rf2 Ne7 21. Raf1 Ng6 22. Qe4 Rad8 23. a4 {Gultom, P-McGirr,J (1875) ICCF 2017 1-0 (27)}) 12. e4 c4 13. Kh1 Rb8 14. d3 cxd3 15. cxd3 a5 16. Qg3 f6 17. Qh3 Nc5 18. e5 f5 19. Nc3 Na6 20. Na4 c5 21. Qe3 Qe8 22. Ba3 Qb5 {Roynet,S (2158)-Grobler,D (2247) ICCF 2018 0-1 (71)}) 11... a5 (11... d4 12. e4 Nd7 13. Qh5 g6 14. Qh3 e5 15. Bc1 Bf6 16. f5 Bg5 17. fxg6 fxg6 18. Qe6+ Kh8 19. Rxf8+ Nxf8 20. Qxe5+ Bf6 21. Qxc5 {Jiménez Melguizo,F-McGirr,J (1903) ICCF 2016 1-0 (28)}) 12. a4 Nd7 13. Nd2 Bf6 14. Bxf6 Qxf6 15. Qe1 Rfe8 16. Nf3 e5 17. fxe5 Nxe5 18. Nh4 Qg5 19. Rf5 Qg4 20. Rf4 Qg5 21. Nf5 {Tauber,H (2288)-Muzas,K (2186) ICCF 2005 1/2 (54)}) (9... Qc7 10. d3 O-O (10... Bd6 11. Nd2 O-O-O 12. Qe2 Rhf8 13. c4 g6 14. Nxc6 Qxc6 15. Bxf6 Rde8 16. Nf3 dxc4 17. dxc4 Be7 18. Bxe7 Rxe7 19. e4 Rd8 20. Rad1 b6 21. Rxd8+ Kxd8 22. Rd1+ Ke8 23. Qb2 Rd7 24. Qh8+ Ke7 25. Rxd7+ Qxd7 26. Qxh7 Kd6 27. Ne5 Qe7 28. Qxf7 Qxf7 29. Nxf7+ Ke7 30. Ne5 Kf6 31. Kf2 g5 32. Kf3 gxf4 33. Kxf4 Ke7 34. g4 a6 35. g5 b5 36. h4 bxc4 37. bxc4 {1-0 (37) Bowen,F-Rice,R (1424) ICCF 2013 Bird's Opening with-1...d5}) 11. Nxc6 Qxc6 12. Nd2 Nd7 13. e4 f5 14. Qf3 fxe4 15. dxe4 d4 16. a4 Bg5 17. Qg4 Bh6 18. Nc4 Qxe4 19. Rae1 Qf5 20. Qxf5 exf5 21. c3 {Deneuville, C (2203)-Eilmes,D (2264) ICCF 2010 1/2 (30)}) 10. d3 (10. c4 dxc4 11. bxc4 O-O 12. Qe2 Be8 13. Nc3 Nd7 14. Nf3 f6 15. d3 Bh5 16. Rab1 Nb6 17. Nb5 a6 18. Nc3 Qd7 19. Ba3 Rc6 20. Rb3 Rd8 21. Rd1 {Geus,A-Friis,J (2213) ICCF 2009 1/2 (34)}) 10... O-O 11. Nd2 Nd7 (11... Be8 12. a4 Nd7 (12... d4 13. Ndc4 a6 14. a5 Nd5 15. Qg4 Kh8 16. f5 exf5 17. Qxf5 f6 18. exd4 g6 19. Qe6 Nc7 20. Qg4 fxe5 21. Nb6 Rb8 22. d5 Kg8 23. Bxe5 Bf6 24. Rxf6 {Buhmann,T-Marquardt,G (2206) ICCF 2006 1-0 (48)}) 13. Qg4 Nxe5 14. fxe5 a6 15. a5 Bg5 16. Rf3 Bc6 17. Rg3 Bh6 18. Qh5 Kh8 19. Rh3 Qg5 {1/2 (19) Egan,M (2144)-Moss,R ICCF 2018}) (11... Bb5 12. Rf3 Ne8 13. Rh3 f6 14. Qh5 fxe5 {LeSavouroux,H-Blondel,F ICCF 2008 1/2 (44)}) 12. Qg4 (12. Nxc6 Rxc6 13. Qe2 (13. e4 f5 14. exd5 exd5 15. Qf3 Nb6 16. Rae1 c4 17. dxc4 dxc4 18. Rd1 Qc7 19. Bd4 Rd8 20. Be5 Qc8 21. Nxc4 Nxc4 22. bxc4 Rxd1 { Bruce,R (1958)-Gould,I (2009) ICCF 2016 1-0 (63)}) 13... Bf6 14. Bxf6 Qxf6 15. c4 Rd8 16. Nf3 h6 17. Rad1 Rd6 18. cxd5 exd5 19. g3 Re8 20. e4 d4 21. Rc1 Rc6 { Andreassen,E (2317)-Saule,Z (2147) ICCF 2009 1-0 (33)}) 12... Nxe5 (12... Nf6 13. Qg3 Be8 14. a4 a5 15. f5 Nh5 16. Qh3 f6 17. Ng4 exf5 18. Rxf5 g6 19. Rf2 Bd7 20. Raf1 Rc6 21. Nh6+ Kg7 22. Nf5+ Bxf5 23. Rxf5 Kh8 24. R5f2 {Elias,B (1752)-Lixa,A (1948) ICCF 2010 1-0 (66)}) 13. Bxe5 g6 {Tauber,H (2293) -Einarsson,o^ (2274) ICCF 2006 1/2 (70)}) (2. c4 e6 (2... c6 3. e3 Nf6 4. Nf3 Bg4 5. Be2 (5. h3 Bxf3 6. Qxf3 Nbd7 7. cxd5 cxd5 8. d4 Rc8 9. Nc3 e6 10. Bd3 Bb4 11. Bd2 Bxc3 12. Bxc3 O-O 13. O-O Nb6 14. Bb4 Re8 15. Rac1 Qd7 16. b3 Rxc1 {Anderson,C-Smith,J ICCF 2020 1-0 (59)}) (5. Nc3 e6 6. Qb3 (6. Be2 Bd6 7. O-O O-O 8. b3 Nbd7 9. Bb2 Qe7 10. Nd4 Bxe2 11. Qxe2 Rad8 12. cxd5 exd5 13. Nf5 Qe6 14. Nd4 Qe7 15. Rf3 Bc5 16. Nf5 Qe6 17. Qd3 Rfe8 {Arnold,G (2428)-García Rodríguez,I (2079) ICCF 2006 0-1 (74)}) 6... Qb6 7. h3 Qxb3 (7... Bxf3 8. gxf3 d4 9. exd4 Nh5 10. Ne2 Qxb3 11. axb3 Na6 12. d3 Nb4 13. Kd2 a5 14. h4 Be7 15. Kc3 f5 16. Bh3 O-O 17. Be3 Rfd8 18. Rhd1 g6 19. Bf2 {Arnold,G (2360)-Ljubicic, A (2490) ICCF 2008 0-1 (63)}) 8. axb3 Bf5 9. cxd5 exd5 10. Nd4 Bc8 11. g4 Bc5 12. d3 Na6 13. Bd2 h5 14. g5 Bxd4 15. exd4 Ng8 {Arnold,G (2390)-Ellis,J (2165) ICCF 2008 1/2 (34)}) 5... Nbd7 6. cxd5 cxd5 7. O-O e6 8. Nc3 Rc8 9. Nd4 Bxe2 10. Ncxe2 Bc5 11. a3 {Howard,J (1995)-Addis,E (1915) ICCF 2020}) (2... dxc4 3. Qa4+ Nc6 4. Nf3 a6 5. Nc3 e6 6. Qxc4 Nb4 7. Qb3 c5 8. a3 Nc6 9. e3 Nf6 10. Be2 Bd6 11. O-O O-O 12. Ng5 b5 13. Qc2 Bb7 14. Nce4 {Riihimäki,V-Jonovic,P (1882) ICCF 2005 1/2 (40)}) (2... d4 3. d3 Nc6 4. e4 e5 5. Nf3 Bb4+ 6. Bd2 exf4 7. Bxb4 Nxb4 8. Qd2 c5 9. a3 Nc6 10. Qxf4 Nh6 11. Be2 f5 12. O-O O-O 13. Ne5 Nxe5 14. Qxe5 {Ulyanov,O-Fichtner,B (2155) ICCF 2007 0-1}) (2... e5 3. fxe5 dxc4 4. e3 Nc6 5. Nf3 Be6 6. Be2 Qd5 7. Nc3 Qa5 8. b3 cxb3 9. Bb2 bxa2 10. O-O Qb6 11. Qc1 Be7 12. Nxa2 Nh6 13. Ba3 O-O 14. Bxe7 {Andreassen,E (2314)-Friis,J (2089) ICCF 2007 1-0 (35)}) 3. e3 Nf6 4. b3 d4 5. Bb2 (5. Be2 Nc6 6. Bb2 Bc5 7. exd4 Bxd4 8. Nc3 Ne4 9. Nxe4 Bxb2 10. Rb1 Bd4 11. Nf3 e5 12. Nxd4 Qxd4 13. Nc3 O-O 14. Nd5 Bf5 15. d3 Rfe8 16. Rf1 exf4 {Ulyanov,O-Parushev,A (2357) ICCF 2007 0-1 (26)}) 5... Bc5 6. b4 Bxb4 7. Bxd4 Nc6 8. Bb2 e5 9. fxe5 Ng4 10. Qb3 Qh4+ 11. g3 Qg5 12. Nf3 Qxe3+ 13. Qxe3 Nxe3 {Ulyanov,O-Hens,B (2347) ICCF 2007 0-1 (25)}) (2. e4 dxe4 3. Nc3 (3. d3 b6 (3... Nf6 4. Nc3 Bf5 5. Nxe4 Nxe4 6. g4 e6 7. gxf5 Qh4+ 8. Ke2 Qf2# {0-1 (8) Kostová,M-Plsková,M ICCF 2009}) 4. Nc3 exd3 5. Qxd3 Qxd3 6. Bxd3 Bb7 7. Be4 Nc6 8. Nb5 Kd8 9. Bd2 Nf6 10. Bxc6 Bxc6 11. Nxc7 Kxc7 12. Nf3 Be4 13. O-O-O Bxf3 14. gxf3 e6 {Chugg,M (1297)-Wiesbrock,H (1406) ICCF 2019 0-1 (45)}) 3... Nf6 4. b3 (4. d4 exd3 5. Bxd3 e6 6. Be3 Bb4 7. Qd2 Nbd7 8. a3 Ba5 9. b4 Bb6 10. Nf3 O-O 11. Bxb6 axb6 12. O-O c6 13. a4 Qe7 14. Rfb1 Rd8 15. Kh1 h6 {Taylor,T (2329)-Pritchard,O (2250) ICCF 2013 1-0 (52)} ) 4... Nc6 5. Ba3 a6 6. Nge2 e5 7. g3 Bxa3 8. Bg2 exf4 9. Nxf4 Bg4 10. Bf3 Bxf3 11. Nce2 Bxh1 12. d3 g5 13. Nh3 Ng4 {Chugg,M (1297)-Feldt,K ICCF 2019 0-1}) (2. g3 g6 (2... h5 3. Nf3 (3. c4 h4 4. Bg2 dxc4 5. Qa4+ c6 6. Qxc4 Be6 7. Qb4 Qb6 ( 7... Qc7 8. Qa4 Na6 9. Nf3 hxg3 10. hxg3 Rxh1+ 11. Bxh1 Qb6 12. d3 Nh6 13. Qd4 Nb4 14. Na3 Bd5 15. Qxb6 axb6 16. Kf1 Nf5 17. e4 Nxg3+ 18. Kg2 Nxe4 19. dxe4 { Löschnauer,R (2481)-Egoshin,G (2406) ICCF 2016 1/2 (45)}) 8. Qxb6 axb6 9. Nf3 hxg3 10. hxg3 Rxa2 11. Rxa2 Rxh1+ 12. Bxh1 Bxa2 13. Nc3 Be6 14. Ng5 Bf5 { Fagerström,M (2131)-Anokhin,Y (2345) ICCF 2012 0-1 (57)}) (3. e3 Nc6 4. d4 Bg4 5. Be2 Nh6 6. Nf3 e6 7. O-O Bh3 8. Re1 Be7 9. Nc3 h4 10. e4 hxg3 11. hxg3 dxe4 12. Nxe4 Qd5 13. c4 Qf5 14. Nf2 Bg4 {Dreisch,J (2106)-Eliseev,V (2209) ICCF 2016 0-1 (31)}) (3. h3 Nc6 4. Nf3 Nh6 5. e3 f6 6. Nc3 Nf5 7. Rg1 e5 8. g4 hxg4 9. hxg4 Nh6 10. g5 Nf5 11. gxf6 gxf6 12. fxe5 fxe5 13. d3 Be7 14. Qe2 Be6 { Beyer Lecaros,A (1996)-Petters Merino,O (2146) ICCF 2015 0-1 (26)}) 3... h4 4. Bg2 (4. Nxh4 Rxh4 5. gxh4 e5 6. d3 Qxh4+ 7. Kd2 Qxf4+ 8. e3 Qh6 9. c3 Nc6 10. Kc2 Nf6 11. Bg2 e4 12. d4 Be6 13. Qe2 O-O-O 14. Nd2 Ne7 15. Nf1 Nf5 {Domenche Redondo,F (1715)-Cattani,M (2430) ICCF 2015 0-1 (26)}) (4. Rg1 hxg3 5. hxg3 Nc6 6. c4 Bg4 7. Ne5 Nxe5 8. fxe5 c6 9. Qb3 Qd7 10. cxd5 cxd5 11. d4 e6 12. Bd2 Ne7 13. Qe3 Nc6 14. Nc3 Be7 15. Rc1 f6 {Dreisch,J (2106)-Gibas,T (2229) ICCF 2016 0-1 (44)}) 4... Nc6 5. Nc3 (5. Nxh4 e5 6. fxe5 Rxh4 7. gxh4 Qxh4+ 8. Kf1 Bc5 9. e3 d4 10. Qf3 dxe3 11. dxe3 Nxe5 12. Nc3 Nxf3 13. Bxf3 Bh3+ 14. Ke2 Qc4+ 15. Kf2 O-O-O 16. Be2 Qh4+ {Neumann,F (1516)-Llompart Flexas,G (2150) ICCF 2020 0-1 }) 5... h3 6. Bf1 Bg4 7. e3 e5 8. fxe5 Nxe5 9. Be2 Bxf3 10. Bxf3 Nf6 11. O-O Qd7 12. d4 Nxf3+ 13. Qxf3 Qc6 14. Qf5 {Muñoz Portugal,G (2339)-Rivas Maceda,J (2272) ICCF 2011 0-1 (26)}) (2... Nc6 3. Bg2 e5 4. fxe5 Nxe5 5. d4 Nc4 6. b3 Nb6 7. Nf3 h6 8. O-O Be7 9. c4 dxc4 10. bxc4 Nf6 11. c5 Nbd5 12. Ne5 c6 13. e4 Nc7 14. Na3 {Jung,R (2289)-Schenker,L (1494) ICCF 2018 1-0 (35)}) (2... Bf5 3. c4 Nf6 4. Bg2 e6 5. Nf3 c6 6. Qb3 Na6 7. cxd5 Nc5 8. Qd1 exd5 9. Nc3 Bd6 10. Nd4 Bd7 11. O-O O-O 12. Qc2 Re8 13. e3 a5 14. b3 {Schanzenbächer,M-Tudor,V (1665) ICCF 2011 0-1 (62)}) 3. Bg2 Bg7 4. Nc3 (4. c3 Nf6 5. d3 O-O 6. Nh3 c5 7. Nf2 Nc6 8. O-O Bd7 9. e4 dxe4 10. dxe4 Qc8 11. Na3 a6 12. h3 b5 13. g4 e6 14. Nc2 Ra7 15. e5 Nd5 {Smith,C-Stephens,B ICCF 2012 0-1 (34)}) 4... Nf6 5. Nf3 d4 6. Na4 Na6 7. Ne5 c6 8. O-O Ng4 9. Nc4 Qc7 10. b3 b5 11. Nab2 bxc4 12. Nxc4 Be6 13. Rb1 O-O {Theis,B (1714)-Schulze,P (2030) ICCF 2017 0-1}) (2. d3 Nf6 (2... Nc6 3. Nf3 Bg4 4. Nbd2 Qd6 5. e4 Qxf4 6. exd5 Nb4 7. Be2 Nxd5 8. Nc4 Qf6 9. O-O Qe6 10. d4 f6 11. Nce5 fxe5 12. Ng5 Qb6 13. Bxg4 Ngf6 14. Be6 {Oaker,W (2246) -Neves,B (2036) ICCF 2008 1-0 (40)}) (2... Bf5 3. e3 e6 4. Nf3 Nc6 5. a3 Be7 6. g3 Qd6 7. Nbd2 O-O-O 8. b3 Bf6 9. d4 Nge7 10. c4 dxc4 11. Nxc4 Qd5 12. Bg2 h6 13. Nh4 Be4 14. Bxe4 {Szaszák,R-Maxa,M ICCF 2009 0-1}) 3. Be3 e6 4. Nf3 c5 5. g3 Bd6 6. c3 O-O 7. Bg2 Nc6 8. Nbd2 b5 9. O-O Bb7 10. Nb3 c4 11. dxc4 dxc4 12. Nbd4 Nxd4 13. Nxd4 Bxg2 {Scott,R (1728)-Scavo,S (1621) ICCF 2013 1-0 (41)}) (2. b4 e5 3. fxe5 Bxb4 4. Nf3 f6 5. Bb2 fxe5 6. Bxe5 Nf6 7. e3 O-O 8. Be2 Ng4 9. Bc3 Bd6 10. O-O Rxf3 11. Bxf3 Bxh2+ 12. Kh1 Bg3 13. Kg1 h5 {Gonçalves,C (1978) -Glaser,K (2167) ICCF 2006 0-1}) (2. b3 Bg4 (2... Nf6 3. e3 (3. Bb2 e6 (3... Nc6 4. e3 Bf5 (4... Bg4 5. Nf3 e6 6. Be2 Bd6 7. O-O O-O 8. c4 Bc5 9. d4 Bd6 10. a3 Ne7 11. c5 Nf5 12. cxd6 Nxe3 13. dxc7 Qxc7 14. Qc1 Qxf4 15. Ne5 Qe4 16. Bf3 {Bassanini,M (1904)-Di Pietro,R (1557) ICCF 2015 1-0}) 5. Bb5 Qd7 6. Nf3 Bg4 7. O-O a6 8. Be2 Bxf3 9. Bxf3 Qf5 10. d3 e6 11. Nc3 Bc5 12. Qe2 O-O 13. Kh1 Bd6 14. g4 Qg6 15. g5 {Rawlings,D-Walsh,H (1741) ICCF 2014 1-0 (29)}) (3... g6 4. Nf3 Bg7 5. g3 O-O 6. Bg2 b6 7. a4 Nc6 8. O-O Bf5 9. c3 Qd7 10. Na3 Ne4 11. Nb5 Nd6 12. d3 Bg4 13. e4 dxe4 14. dxe4 Na5 15. Nxd6 {Korman,J (1809)-Hansen,L (2166) ICCF 2010 1/2 (39)}) 4. Nf3 Be7 5. e3 O-O (5... c5 6. Ne5 Nbd7 (6... O-O 7. Bd3 Nc6 8. O-O d4 9. Nxc6 bxc6 10. Qf3 Bb7 11. e4 h6 12. e5 Nd7 13. Qe4 g6 14. Qf3 f5 15. Bc4 Kh7 16. Bxe6 Qc7 17. Bc4 Nb6 18. Be2 {Clayton,G (1806) -Kayaalp,L ICCF 2010 1-0 (30)}) 7. Qf3 O-O 8. Bd3 Qc7 9. O-O b6 10. Na3 Bb7 11. Qh3 h6 12. Rf3 Ne4 13. Bxe4 dxe4 14. Rg3 Bf6 15. Qxh6 Qd8 16. Nxd7 Bxb2 17. c3 {Reynolds,R (1740)-Young,J (1877) ICCF 2019 1-0}) (5... Na6 6. Bd3 O-O 7. Ng5 h6 8. Nh3 c5 9. g4 e5 10. Bxe5 Bxg4 11. Be2 Bxh3 {0-1 (11) Nachtigall,F (1913) -Aymard,M (1991) ICCF 2017}) 6. Be2 (6. Ne5 c6 7. Nc3 Nbd7 8. Ne2 Nxe5 9. Bxe5 Bd6 10. Ng3 g6 11. Bb2 Be7 12. Bd3 Qb6 13. h4 h5 14. Nf1 Ng4 15. Qf3 Bf6 16. Bxf6 Nxf6 17. Nh2 Kg7 {Vercauteren,N (1723)-Zondervan,F (1451) ICCF 2020 1-0 (34)}) 6... c5 7. O-O b6 8. Ne5 Bb7 9. a4 Nfd7 10. d4 Nc6 11. Nd2 Rc8 12. Ndf3 Ndxe5 13. Nxe5 Nxe5 14. fxe5 Qc7 {Rawlings,D-Bevan,P (1947) ICCF 2015 0-1 (37)} ) 3... g6 (3... Bf5 4. Bb2 e6 5. Nf3 Be7 (5... h5 6. Nc3 h4 7. Nd4 Bg6 8. Nf3 Nbd7 9. Be2 c6 10. d3 h3 11. g3 Ng4 12. Qd2 Bb4 13. a3 Ba5 14. b4 Bb6 15. Nd1 Ndf6 16. Ng5 d4 17. e4 {Menten,R (1999)-Freire,D (2032) ICCF 2013 0-1 (65)}) ( 5... Bd6 6. Be2 Nbd7 7. O-O c6 8. c4 Bg4 9. Nc3 O-O 10. h3 Bh5 11. cxd5 cxd5 12. Rc1 a6 13. g4 Bg6 14. Nh4 Nc5 15. Nxg6 hxg6 16. d3 Rc8 17. g5 {Dearnley,A (2341)-Anderson,G (2292) ICCF 2008 1/2 (39)}) 6. Be2 c5 7. O-O O-O 8. d3 (8. c4 d4 9. exd4 cxd4 10. Bxd4 Nc6 11. Bc3 Ne4 12. Bb2 Qb6+ 13. d4 Rad8 14. Na3 Bxa3 15. Bxa3 Nxd4 16. Nxd4 Rxd4 17. c5 Qd8 18. Qe1 Nd2 19. Rf2 Ne4 {Vercauteren,N (1727)-Meneghetti,J (1762) ICCF 2016 0-1 (34)}) 8... h6 9. Ne5 Nfd7 10. Nxd7 Qxd7 11. Nd2 Nc6 12. Qe1 Qd8 13. Nf3 Bf6 14. Ne5 Nxe5 15. fxe5 {Langheld,W (2191)-Oehler,R (2280) ICCF 2018 1-0}) (3... Bg4 4. Nf3 (4. Be2 Bxe2 5. Qxe2 c6 6. Bb2 Nbd7 7. Nf3 e6 8. O-O Bd6 9. d3 Qc7 10. Nbd2 O-O 11. c4 Rac8 12. Rac1 Rfe8 13. Kh1 a6 14. h3 Nh5 15. Qf2 Nc5 {Byrnes,J (1634)-Jarmuz,F (1846) ICCF 2016 0-1}) 4... e6 (4... c5 5. Bb5+ (5. h3 Bxf3 6. Qxf3 Nc6 (6... e6 7. Bb5+ Nc6 8. Bb2 Be7 9. O-O O-O 10. Bxc6 bxc6 11. Nc3 h6 12. d3 d4 13. Ne2 Nh7 14. exd4 Qc7 15. dxc5 Bxc5+ 16. Kh1 f5 17. Nd4 Bxd4 18. Bxd4 {Wilson,G (1919)-Wood, S (1638) ICCF 2017 1-0 (27)}) 7. Bb5 Rc8 8. Bb2 e6 9. d3 Qa5+ 10. Nd2 Qxb5 11. O-O Be7 12. c4 Qa6 13. a3 O-O 14. e4 dxe4 15. Nxe4 Nxe4 16. dxe4 Rcd8 {Schulz, B (1923)-Masset,J (1843) ICCF 2012 0-1}) 5... Nbd7 6. O-O e6 7. Nc3 a6 8. Bd3 Be7 9. Bb2 b5 10. Ne2 c4 11. Ne5 Nxe5 12. Bxc4 Nxc4 13. bxc4 dxc4 14. h3 Bxe2 15. Qxe2 O-O 16. c3 {Nelson,J (1816)-Maurizio,M (1657) ICCF 2015 0-1 (26)}) 5. Bb2 Nbd7 6. Be2 Be7 (6... Bxf3 7. Bxf3 Bd6 8. O-O O-O 9. d3 c6 10. Nd2 Qc7 11. c4 dxc4 12. bxc4 b5 13. cxb5 Rab8 14. Bxf6 Nxf6 15. Bxc6 Bc5 16. d4 Bb6 17. Nc4 Nd7 18. a4 {Spencer,A (1630)-Hipwell,C (1584) ICCF 2016 1-0 (33)}) 7. O-O O-O 8. d3 Bf5 9. Nd4 Bg6 10. f5 exf5 11. Nxf5 Bxf5 12. Rxf5 c6 13. Kh1 Rc8 14. Nd2 Bc5 15. e4 {Menten,R-Achermann,J (1886) ICCF 2005 1-0}) (3... c5 4. Nf3 (4. Bb2 g6 (4... Bg4 5. Nf3 e6 6. Be2 Be7 7. h3 Bxf3 8. Bxf3 O-O 9. O-O Nbd7 10. c4 Nb6 11. d3 Rb8 12. a4 dxc4 13. dxc4 Qxd1 14. Rxd1 Nbd7 15. Nc3 Rfe8 16. Nb5 { Bassanini,M (1904)-Baldini,A (1695) ICCF 2015 1-0 (29)}) 5. Nf3 Bg7 6. Bb5+ Bd7 (6... Nbd7 7. O-O O-O 8. Bxd7 Bxd7 9. d3 b5 10. Nbd2 Rc8 11. Ne5 Be6 12. h3 c4 13. dxc4 dxc4 14. Ndf3 Ne4 15. Qxd8 Rfxd8 16. Rfd1 a5 17. Bd4 cxb3 18. cxb3 { Potter,C (1747)-Tegtmeier,J ICCF 2009 0-1 (55)}) 7. Be2 Nc6 8. O-O Qc7 9. d4 cxd4 10. Nxd4 Rc8 11. Nd2 O-O 12. c4 Rfd8 13. Rc1 dxc4 14. Nxc4 Ne8 15. Bf3 Nxd4 {Cooper,N (2185)-Busygin,S ICCF 2020 1/2 (35)}) (4. Bb5+ Bd7 5. Bxd7+ Qxd7 6. Nf3 g6 7. Ba3 b6 8. O-O Bg7 9. Ne5 Qc7 10. c4 Nbd7 11. d4 dxc4 12. bxc4 e6 13. Nc3 a6 14. Rb1 O-O 15. Qf3 Rfc8 {Kjeldsen,K (2006)-Mitica,G (2070) ICCF 2013 1-0 (33)}) 4... a6 (4... Nc6 5. Bb5 Qb6 6. Bxc6+ bxc6 7. Nc3 Bg4 8. h3 Bxf3 9. Qxf3 e6 10. O-O Be7 11. Bb2 O-O 12. d3 Nd7 13. Na4 Qc7 14. Rae1 f5 15. Ba3 Rf7 16. c4 {Hadley,G-Ormsby,A (1981) ICCF 2010 0-1}) 5. Bb2 Nc6 6. Ne5 (6. Be2 e6 7. O-O Be7 8. Ne5 Qc7 9. d3 O-O 10. Nd2 Bd6 11. Nxc6 bxc6 12. Bxf6 gxf6 13. Qe1 f5 14. Qh4 Qe7 15. Qh6 Kh8 16. e4 f6 17. exf5 exf5 {Menten,R (1991) -Gross,M (2183) ICCF 2006 1/2 (27)}) 6... Qc7 7. Be2 Bd7 8. O-O e6 9. Qe1 Be7 10. d3 O-O 11. Qg3 Rfd8 12. Nd2 b5 13. e4 dxe4 14. Nxe4 Nxe4 15. dxe4 { Vercauteren,N (1746)-Rodney,R (1502) ICCF 2018 1-0 (36)}) (3... d4 4. Qe2 (4. Bd3 dxe3 5. dxe3 e5 6. fxe5 Ng4 7. Nf3 Nc6 8. Qe2 Ngxe5 9. Be4 Nxf3+ 10. Qxf3 Ne5 11. Qf4 Bd6 12. O-O Bg4 13. Qf2 c6 14. Bf5 Nf3+ 15. Kh1 Nxh2 {Nachtigall,F (1913)-Sprenger,F (2023) ICCF 2017 0-1}) 4... Nc6 (4... c5 5. Bb2 Nc6 6. Nf3 a6 7. Na3 Bf5 8. Ne5 Qc7 9. g4 Be4 10. Bg2 Bxg2 11. Qxg2 Rc8 12. Nac4 Nb4 13. O-O b5 14. Nxf7 Kxf7 15. Ne5+ Ke8 16. c3 {Dearnley,A (2369)-Caressa,M (2123) ICCF 2009 1/2 (42)}) (4... dxe3 5. dxe3 e5 6. Nf3 e4 7. Nfd2 Nc6 8. a3 Bc5 9. Nc3 O-O 10. b4 Bb6 11. Nc4 Be6 12. Nxb6 axb6 13. Bb2 Qe7 14. Rg1 Bg4 15. Qf2 Nxb4 16. h3 {Dearnley,A (2299)-Schulz,R (2326) ICCF 2007 1-0 (37)}) 5. Nf3 Bf5 6. Qb5 Qd7 7. Ne5 Nxe5 8. fxe5 Qxb5 9. Bxb5+ c6 10. O-O e6 11. Bc4 Nd5 12. Bxd5 cxd5 13. exd4 Bxc2 14. Ba3 Rc8 15. Bxf8 {Dearnley,A (2326)-Stubbs,M (2085) ICCF 2007 1-0 (52)}) (3... Nc6 4. Bb5 g6 5. Bxc6+ bxc6 6. Bb2 {1-0 (6) Dearnley,A (2385)-Mirbach,T (2128) ICCF 2010}) (3... e6 4. Nf3 Bd6 5. Bb2 O-O 6. Be2 Nc6 7. O-O Ng4 8. h3 Nh6 9. g4 f5 10. g5 Nf7 11. d4 Bd7 12. c4 dxc4 13. bxc4 Re8 14. Nc3 b6 15. h4 {Ruiter,T (2172)-Driessen,C (1872) ICCF 2009 1-0 (41)}) 4. Bb2 Bg7 5. Nf3 O-O (5... Bg4 6. Be2 (6. h3 Bxf3 7. Qxf3 c6 8. g4 Nbd7 9. h4 O-O 10. h5 Ne4 11. Nc3 Qa5 12. hxg6 fxg6 13. Qh3 Ndf6 14. Nxe4 dxe4 15. Bc4+ Rf7 16. Bxf6 exf6 17. Qxh7+ Kf8 {Vercauteren,N (1715)-Bellisario,C (1479) ICCF 2020 1-0 (25)}) 6... O-O 7. O-O Nbd7 8. c4 c6 9. Nc3 Nc5 10. Ne5 Bxe2 11. Qxe2 d4 12. exd4 Qxd4+ 13. Kh1 Ne6 14. f5 gxf5 15. Rxf5 Rad8 16. Rd1 Qd6 17. Na4 {Dearnley,A (2341)-Figlio,G (2483) ICCF 2008 1/2 (31)}) (5... b6 6. d3 Bb7 7. Nbd2 O-O 8. Be2 c5 9. O-O Nc6 10. Ne5 Qc7 11. Ndf3 Nxe5 12. Nxe5 Rad8 13. Qe1 Nd7 14. d4 cxd4 15. exd4 Nf6 16. Rc1 Rc8 17. c4 {Wilson,N (1492)-Roberts,G (1783) ICCF 2018 0-1 (27)}) 6. Be2 (6. c4 Bf5 7. cxd5 Nxd5 8. Bxg7 Kxg7 9. Be2 e6 10. O-O Qf6 11. Na3 Nc6 12. Nc4 Rad8 13. Qc1 h6 14. Nce5 Nxe5 15. Nxe5 g5 16. Qb2 gxf4 17. exf4 c6 {Wilson,G (1882)-Nittel,C (1875) ICCF 2015 1/2}) (6. d3 c5 7. Nbd2 Nc6 8. Be2 Ng4 9. Bxg7 Nxe3 10. Qb1 Kxg7 11. Kf2 Ng4+ 12. Ke1 Qd6 13. h3 Nf6 14. g3 e5 15. fxe5 Nxe5 16. Kf2 Kg8 17. Nxe5 Qxe5 {Wilson,N (1601) -Gérard,A (1801) ICCF 2017 0-1 (28)}) 6... c5 7. O-O (7. d3 Nbd7 8. O-O b5 9. Nbd2 Ng4 10. Qc1 Nxe3 11. Re1 d4 12. Ne4 f5 13. Neg5 Nb6 14. c3 h6 15. Nh3 Bb7 16. Qd2 Nbd5 17. cxd4 cxd4 18. Rac1 Qb6 {Walsh,H (1740)-Miskimmin,C ICCF 2015 1-0 (43)}) 7... Nc6 (7... Bf5 8. h3 (8. Ne5 Nfd7 9. d4 cxd4 10. exd4 Nxe5 11. fxe5 Nc6 12. Nc3 Bh6 13. Bc1 Bxc1 14. Rxc1 Qa5 15. Rf3 Rac8 16. Qd2 Rfd8 17. Re3 a6 18. g4 Be6 19. Rd1 b5 {Spiller,P-Rakhimov,R (2161) ICCF 2014 1-0 (60)}) 8... Nc6 9. Ne5 Qc7 10. Nxc6 Qxc6 11. Bf3 Be4 12. d3 Bxf3 13. Qxf3 Rad8 14. Nd2 Ne4 15. dxe4 Bxb2 16. exd5 Rxd5 17. Rad1 Rfd8 18. Nc4 Rxd1 {1/2 (18) Borwell,A (2232)-Bohak,J (2292) ICCF 2012}) 8. Ne5 (8. d3 d4 9. e4 b5 10. a4 Ng4 11. axb5 Ne3 12. Qd2 Nxf1 13. Bxf1 Bg4 14. bxc6 Bxf3 15. gxf3 Qc7 16. Ra6 e5 17. fxe5 Bxe5 18. Bh3 Bf4 19. Qe2 Be3+ {Wilson,N-Anderson,L (1343) ICCF 2013 0-1 (46)}) 8... Qc7 (8... Nxe5 9. Bxe5 Ne4 (9... Ne8 10. Bxg7 Nxg7 11. Bf3 (11. Nc3 d4 12. Ne4 dxe3 13. dxe3 Nf5 14. Qxd8 Rxd8 15. Rfd1 Rxd1+ 16. Rxd1 Be6 17. Nxc5 Nxe3 18. Rd2 Bf5 19. Nxb7 Rb8 20. Na5 Nxc2 21. Nc6 Rb7 22. Bc4 Ne3 {Bassanini,M (1897)-Bonaretti,A (1887) ICCF 2016 1-0 (27)}) 11... Qd6 12. Nc3 Be6 13. Qe2 Rfd8 14. a4 Rac8 15. Nb5 Qb8 16. c4 Rd7 17. Nc3 d4 18. Nd5 Bxd5 19. cxd5 e6 20. Qc4 Qd6 21. dxe6 {Langheld,W (2191)-Billinger,W (2206) ICCF 2018 1/2 (40)}) 10. Bxg7 Kxg7 11. c4 Nf6 12. cxd5 Nxd5 13. Nc3 Nxc3 14. dxc3 Qc7 15. e4 b6 16. Qe1 Bb7 17. Bc4 Rad8 {1/2 (17) Poel,E (2366)-Loginov,A (2339) ICCF 2009}) (8... Bd7 9. Bf3 Rc8 10. Qe2 (10. Nc3 d4 11. exd4 cxd4 12. Ne2 Nxe5 13. fxe5 Ng4 14. Bxd4 Nxe5 15. Bxe5 {1-0 (15) Vercauteren,N (1679)-Stegner,D (1540) ICCF 2018}) 10... Qc7 11. c4 dxc4 12. bxc4 Ne8 13. Nxc6 Bxc6 14. Nc3 Nd6 15. Rab1 Bxf3 16. Rxf3 e6 17. Nb5 Nxb5 18. Bxg7 Kxg7 19. Rxb5 Rfd8 20. d3 {Dearnley,A (2374)-Rubio Doblas,F (2247) ICCF 2010 1/2}) 9. Nxc6 (9. Bf3 Bf5 10. Nxc6 Qxc6 11. d3 (11. Qe2 Bxc2 12. d3 Bxb1 13. Raxb1 Rac8 14. Rfc1 Qd6 15. Be5 Qe6 16. e4 Rfd8 17. Bb2 Nd7 18. e5 Qa6 19. Bxd5 Nxe5 20. Bxb7 Qxb7 21. Bxe5 Bxe5 22. fxe5 Qd5 { Dearnley,A (2374)-Rauduvè,A (2354) ICCF 2010 1/2 (52)}) 11... Rad8 (11... Qd7 12. Qe2 (12. Qe1 Rac8 13. Nd2 Rfd8 14. a4 b6 15. Be5 Qe6 16. Rd1 Bg4 17. Qh4 Bxf3 18. Nxf3 h6 19. Rde1 a6 20. Bb2 c4 21. Re2 cxb3 22. cxb3 Qd6 23. Be5 Qb4 { Menten,R (1991)-Janusonis,A (2256) ICCF 2006 1/2 (30)}) 12... Rfd8 13. Nd2 a5 14. a4 Rac8 15. Rad1 Be6 16. c4 d4 17. exd4 cxd4 18. Rde1 b6 19. Ba3 Re8 20. Qf2 Bf5 21. Ne4 Ng4 22. Bxg4 Bxg4 23. h3 {Limbert,N (2139)-Cuomo,S ICCF 2008 1/ 2}) 12. Qe2 Qd7 13. Nd2 Bg4 14. Rae1 b5 15. e4 Bxf3 16. Nxf3 d4 17. Bc1 e6 18. Bd2 Rfe8 19. Qf2 Qe7 20. Qh4 Nd7 {Dearnley,A (2326)-Ould Ahmed,S (2182) ICCF 2007 0-1 (44)}) (9. Nc3 Bf5 (9... a6 10. Nxc6 Qxc6 11. Bf3 Be6 12. d3 (12. Ne2 Qd7 13. h3 Rac8 14. d3 b5 15. c4 dxc4 16. dxc4 bxc4 17. Qxd7 Nxd7 18. Bxg7 Kxg7 19. bxc4 Bxc4 20. Rfc1 Bd3 21. Nc3 c4 22. Bb7 Rc5 23. Bxa6 Ra5 {Schulz,B (1923) -Garau,B (1989) ICCF 2012 0-1 (32)}) 12... Rad8 13. Qe2 Qd7 14. Na4 Qc6 15. c4 b6 16. Nc3 Qc7 17. cxd5 Nxd5 18. Nxd5 Bxd5 19. Bxd5 Rxd5 20. Bxg7 Kxg7 21. Rac1 {Schulz,B (1923)-Theveniaud,C ICCF 2012 0-1 (44)}) 10. Na4 (10. g4 Be6 11. Nxc6 Qxc6 12. f5 Bc8 13. Bb5 Qd6 14. Bd3 a6 15. Rb1 Bd7 16. g5 Nh5 17. Qe2 Be5 18. Qg2 Bc6 19. Qh3 b5 20. Rbe1 Ng7 21. fxg6 fxg6 {Vercauteren,N-Ponomarev,N ICCF 2015 0-1 (35)}) 10... b6 11. Bf3 Rad8 12. d3 b5 13. Nxc6 Qxc6 14. Nc3 Qd7 15. Qe1 Ng4 16. Kh1 Be6 17. e4 d4 18. Nd1 c4 19. h3 Nf6 20. Qh4 Ne8 {Dearnley,A (2335)-Balutescu,M (2312) ICCF 2012 1/2 (42)}) 9... Qxc6 10. Bf3 Be6 (10... b5 11. d3 Be6 12. Qe2 a5 13. c4 Rfd8 14. Nc3 b4 15. Nxd5 Nxd5 16. Bxg7 Kxg7 17. cxd5 Bxd5 18. e4 Be6 19. f5 gxf5 20. Rae1 Qd7 {Dam,J (2027)-Gawne,M (1576) ICCF 2019 1-0 (26)}) 11. d3 (11. c4 Qd7 12. Na3 Rad8 13. d4 Ng4 14. Re1 Nh6 15. Rb1 dxc4 16. bxc4 cxd4 17. exd4 Bf5 18. Rc1 Bg4 19. Bxg4 Nxg4 20. Rb1 Rfe8 21. d5 Bxb2 22. Rxb2 Qd6 {Dearnley,A (2370)-Karachurin,S (2443) ICCF 2008 1/2 (55)} ) (11. Qe2 Qd7 12. d3 Rfd8 13. Nd2 Rac8 14. a4 b6 15. Rae1 c4 16. dxc4 dxc4 17. Nxc4 Bxc4 18. bxc4 Ne8 19. Bxg7 Kxg7 20. a5 Qc7 21. axb6 axb6 22. Rd1 Nd6 { Dearnley,A (2341)-Shields,G (2222) ICCF 2008 1/2 (29)}) 11... Qd7 (11... Rad8 12. Qe2 Qd7 13. Nd2 d4 14. e4 Bh6 15. g3 Ng4 16. Nc4 b5 17. h3 Nf6 18. Ne5 Qc8 19. h4 Bg7 20. a4 b4 21. Rae1 h5 22. Bc1 Bh6 23. Kh2 {Dearnley,A (2337) -Herriot,B (2085) ICCF 2011 1-0 (53)}) (11... Rfd8 12. Qe2 Qb6 13. c4 dxc4 14. bxc4 Bf5 15. e4 Bd7 16. Nc3 e6 17. Rab1 Qc7 18. e5 Ne8 19. g3 Rab8 20. Rfd1 Bc6 21. Bxc6 Qxc6 22. Qe4 Qxe4 23. Nxe4 {Hall,T (1858)-Spencer,A ICCF 2014 1-0 (35) }) 12. a4 (12. Qe1 d4 13. e4 Rac8 (13... Qc7 14. Qh4 Ne8 15. Nd2 h5 16. f5 Bh6 17. Bc1 Be3+ 18. Kh1 Bc8 19. Nc4 Bxc1 20. Raxc1 b5 21. fxg6 bxc4 22. e5 Qxe5 23. gxf7+ Rxf7 24. Bxa8 Rf8 25. Rxf8+ {Borwell,A (2232)-Ledezma Álvarez,J (2264) ICCF 2012 1-0 (33)}) 14. Nd2 Ng4 15. Bxg4 Bxg4 16. h3 Be6 17. Nf3 f6 18. Qh4 Bf7 19. Rae1 h6 20. Bc1 b5 21. f5 g5 22. Qf2 e5 23. Bb2 c4 {Menten,R (1991) -Wilczek,R (2106) ICCF 2006 0-1 (37)}) 12... Rfd8 13. Qe2 Rac8 14. Re1 { Lockwood,A (2330)-Pheby,I (2371) ICCF 2013 1/2 (38)}) (2... c5 3. e3 (3. Nf3 Nc6 4. Bb2 Nf6 5. g3 Bg4 6. Bg2 Qd7 7. e3 Ne4 8. Nc3 e5 9. Ne2 f6 10. d3 Nd6 11. fxe5 Bxf3 12. Bxf3 Nf5 13. Bg4 Nxe5 14. Bxe5 fxe5 {Soar,T-Ford,S (1576) ICCF 2017 1-0 (42)}) 3... e6 4. Bb2 Nf6 5. Nf3 Nc6 6. Bb5 Bd7 7. O-O (7. d3 Qa5+ 8. Nc3 d4 9. exd4 cxd4 10. Bxc6 Bxc6 11. Nxd4 Bxg2 12. Rg1 Bc5 13. Nde2 Bxg1 14. Nxg1 Qc5 15. Nge2 Ng4 16. d4 Qh5 17. Qd2 Qh4+ 18. Kd1 Qxh2 {Byrnes,J (1634)-Aymard,M (2116) ICCF 2016 0-1}) 7... Be7 (7... Bd6 8. c4 a6 9. Bxc6 Bxc6 10. Ne5 O-O 11. Nxc6 bxc6 12. Qf3 Be7 13. d3 Nd7 14. e4 d4 15. e5 Qb6 16. Nd2 a5 17. Rfb1 {1-0 (17) Rawlings,D-Rowley,M (1709) ICCF 2016}) 8. Qe2 (8. Bxc6 Bxc6 9. Ne5 Rc8 10. d3 O-O 11. Nd2 Nd7 12. Qg4 Nxe5 13. Bxe5 Bf6 14. Rf3 Bxe5 15. fxe5 Qd7 16. Qh5 f5 17. exf6 Rxf6 18. Raf1 Rxf3 19. Nxf3 Rf8 {Dearnley,A (2326)-Heydt,H (2093) ICCF 2007 1-0 (46)}) (8. d3 a6 9. Bxc6 Bxc6 10. Ne5 Rc8 11. Nd2 O-O 12. Ndf3 Bd6 13. Nxc6 bxc6 14. Ne5 Nd7 15. Nxd7 Qxd7 16. Qg4 f5 17. Qg5 Qf7 18. c4 Be7 19. Qg3 Bf6 {Schulz,B (1923)-Humbert,P (1546) ICCF 2012 1-0 (51)}) (8. a3 O-O 9. Be2 a6 10. Ne5 Qc7 11. Nxd7 Nxd7 12. Bd3 Bf6 13. Nc3 b5 14. Rf3 g6 15. Rb1 Bg7 16. Rh3 f5 17. Qe1 Nf6 18. Qh4 h5 19. Rg3 Qf7 {Wilson,G (1931)-Mechlowski,L (1933) ICCF 2016 0-1 (32)}) 8... O-O 9. d3 Qc7 10. Nbd2 a6 11. Bxc6 Bxc6 12. Ne5 Rad8 13. Nxc6 Qxc6 14. a4 {Bassanini,M (1923)-Vallone,G (2028) ICCF 2016 1-0 (66)}) (2... Nc6 3. e3 (3. Nf3 Nf6 (3... a6 4. e3 g6 5. Bb2 Nf6 6. Ne5 Bg7 7. Nxc6 bxc6 8. Bd3 O-O 9. O-O c5 10. Be5 Ng4 11. Bxg7 Kxg7 12. Nc3 Nf6 13. Qe1 e6 14. Qh4 Bb7 15. g4 {Del Vivo,M-Portych,V (2163) ICCF 2012 1/2 (50)}) (3... Bg4 4. e3 e5 5. fxe5 Nxe5 6. Qe2 Qf6 7. Qb5+ Nc6 8. Nc3 Bxf3 9. gxf3 O-O-O 10. Qe2 d4 11. Ne4 Qg6 12. Bb2 f5 13. Bh3 dxe3 14. O-O-O Kb8 15. Ng3 {Dearnley,A (2378)-Bokar,J (2574) ICCF 2010 0-1 (58)}) 4. Bb2 (4. e3 g6 5. Bb5 Bg7 6. Bb2 a6 7. Bxc6+ bxc6 8. Nc3 O-O 9. Qc1 Qd6 10. Na4 Ne4 11. Bxg7 Kxg7 12. c4 Nf6 13. Qc3 dxc4 14. Qxc4 Be6 15. Qc3 Kg8 {Bialas,T (2263)-Möbius, M (2154) ICCF 2016 1-0 (39)}) 4... e6 (4... Bf5 5. e3 a6 (5... e6 6. Bb5 Bg4 7. O-O Bd6 8. h3 Bxf3 9. Qxf3 Qd7 10. Na3 O-O-O 11. c4 Rhg8 12. cxd5 exd5 13. Rac1 Ne4 14. Qe2 Ng3 {0-1 (14) Wilson,G (1914)-Ferris,S (1748) ICCF 2017}) 6. Be2 e6 7. O-O Bc5 8. d4 Be7 9. Ne5 Nb4 10. Na3 O-O 11. c3 Nc6 12. Nc2 Nxe5 13. dxe5 Nd7 14. Nd4 Be4 15. c4 dxc4 16. bxc4 {Vercauteren,N-Sileika,A (1664) ICCF 2016 1-0 (49)}) 5. e3 Be7 6. Bb5 O-O 7. Bxc6 bxc6 8. Ne5 Bb7 9. d3 c5 10. Nd2 a5 11. a4 d4 12. e4 Bd6 13. O-O Nd7 14. Nxd7 Qxd7 {Vercauteren,N (1724)-Cardwell,J (1492) ICCF 2019 1-0 (56)}) 3... e5 4. Bb2 (4. Bb5 exf4 5. exf4 Qh4+ 6. g3 Qf6 7. Nc3 a6 8. Bxc6+ Qxc6 9. Nf3 d4 10. Na4 Bh3 11. Qe2+ Ne7 12. Qd3 O-O-O 13. Bb2 b5 14. Nb6+ Qxb6 15. O-O-O Bf5 {Esposito,L (1625)-Haas,B (2329) ICCF 2017 0-1}) 4... exf4 5. exf4 Qe7+ 6. Qe2 Bf5 7. Nf3 O-O-O 8. Qxe7 Ngxe7 9. Na3 Bg4 10. Ne5 Nxe5 11. fxe5 Nc6 12. h3 Bf5 13. Be2 Bg6 14. O-O-O {Bassanini,M (1923) -Zazzeri,M (1960) ICCF 2016 0-1 (46)}) (2... Bf5 3. Bb2 (3. Nf3 e6 4. Bb2 c5 5. e3 Nc6 6. Bb5 h5 7. Bxc6+ bxc6 8. O-O Nf6 9. d3 Be7 10. Ne5 Qb6 11. Nd2 c4 12. Qe2 cxd3 13. cxd3 c5 14. h3 a5 {Dearnley,A (2337)-Glaser,K (2269) ICCF 2012 1-0 (28)}) 3... e6 (3... Nf6 4. d3 (4. Nf3 Nbd7 5. e3 e6 6. Be2 Be7 7. O-O c5 ( 7... O-O 8. Nd4 Bc5 9. g4 Nxg4 10. Bxg4 Bxg4 11. Qxg4 Nf6 12. Qg2 Bb6 13. Nf3 c5 14. c4 d4 15. Na3 a6 16. Nc2 Nh5 17. Kh1 g6 18. Rg1 Qe7 19. Qh3 {Schmidt,J (2109)-Blackmore,M (1618) ICCF 2017 1-0 (25)}) 8. Nc3 a6 9. d3 b5 {0-1 (9) Morgan,H-Ashmore,B ICCF 2016}) 4... e6 5. Nf3 Bc5 6. d4 Bb6 7. Nc3 c5 8. e4 dxe4 9. Bb5+ Nbd7 10. Nh4 cxd4 11. Ne2 Bg4 12. Bxd4 Nd5 13. Bxg7 Rg8 14. Bd4 Qxh4+ 15. g3 {Bearce,H (1731)-Catania,D (1815) ICCF 2008 0-1}) (3... Nc6 4. a3 e6 5. Nf3 Bc5 6. Bxg7 Be4 7. Bxh8 Bxf3 8. exf3 Qd6 9. g3 O-O-O 10. d4 Bb6 11. Be5 Qe7 12. f5 exf5 13. Qe2 f6 14. Bf4 Qd7 15. Qd3 {Kospartov,N-MacDonald,M ICCF 2005 1-0 (29)}) 4. e3 a6 5. Nf3 Nc6 6. Be2 h5 7. O-O h4 8. c4 h3 9. g3 Qd7 10. cxd5 exd5 11. Na3 Nb4 12. d3 f6 13. Nc2 Nh6 14. Ncd4 {Geus,A (2132)-Beekes, A (1836) ICCF 2015 1/2 (28)}) (2... Qd6 3. e3 e5 4. fxe5 (4. g3 exf4 5. exf4 Nf6 6. Bg2 Bg4 7. Nf3 Qe6+ 8. Qe2 Qxe2+ 9. Kxe2 Nc6 10. Bb2 Ne4 11. d3 O-O-O 12. Nc3 Bxf3+ 13. Bxf3 Nd4+ 14. Ke3 Nxc2+ 15. Ke2 Nxc3+ {Potter,C (1747) -McElroy,W ICCF 2009 0-1 (52)}) 4... Qxe5 5. Nc3 Nf6 6. Nf3 Qh5 7. Bb2 c6 8. Bd3 Bd6 9. Qe2 Nbd7 10. O-O-O Nc5 11. h3 Nxd3+ 12. Qxd3 Qg6 13. e4 Bg3 14. exd5 {Langheld,W (2191)-Drosson,F (2253) ICCF 2018 1/2}) (2... e6 3. Bb2 f6 (3... Bb4 4. Bxg7 f6 5. Bxh8 Be7 6. e4 Bf8 7. Qh5+ Ke7 8. Qxh7+ Kd6 9. e5+ Kc6 10. Qxg8 fxe5 11. Bxe5 Qe7 12. Nf3 Nd7 13. Nc3 Nxe5 14. Bb5+ Kb6 15. Nxe5 {Cooper, N (2069)-Heineccius,A (1523) ICCF 2016 1-0}) 4. Nf3 Bc5 5. e3 Ne7 6. Be2 Nbc6 7. O-O Ng6 8. Nc3 Nxf4 9. d4 Nxe2+ 10. Nxe2 Bd6 11. Rc1 Ne7 12. c4 dxc4 13. Rxc4 b6 14. Qd2 {Wilson,N (1474)-Kruse,P (1596) ICCF 2020 0-1 (28)}) (2... b6 3. e3 Nf6 4. Bb2 Bb7 5. Nf3 Nc6 6. Be2 Qd7 7. O-O g6 8. Ne5 Nxe5 9. fxe5 Bg7 10. exf6 exf6 11. Bxf6 Bxf6 12. Rxf6 d4 13. Bf3 Bxf3 14. Qxf3 {Bassanini,M (1897)-Evangelisti,M (1635) ICCF 2016 1-0 (29)}) 3. Bb2 (3. h3 Bh5 (3... Bf5 4. Nf3 e6 5. Bb2 Be7 6. e3 Bh4+ 7. Ke2 Bf6 8. Nc3 Be4 9. g4 h6 10. Bg2 Nc6 11. d3 Bxf3+ 12. Bxf3 Nge7 13. Qd2 Ng6 14. Raf1 Nh4 15. a3 {Wilson,G (1914)-Oats,A (1923) ICCF 2017 1/2 (30)}) 4. g4 e5 (4... e6 5. e3 Qh4+ 6. Ke2 Bxg4+ 7. Nf3 Bxf3+ 8. Kxf3 Qh5+ 9. Kg2 Qxd1 10. Bb5+ c6 11. Bxc6+ Nxc6 12. Rxd1 Nge7 13. Bb2 Nf5 14. Rg1 Nb4 15. c3 Nc2 16. Na3 {Nelson,J (1816)-Hansen,M ICCF 2015 0-1 (26) }) (4... Bg6 5. Bb2 (5. d3 e6 6. Nf3 Nc6 7. Bg2 h5 8. g5 h4 9. Nc3 a6 10. Qd2 Bc5 11. d4 Bb4 12. a3 Bxc3 13. Qxc3 Nge7 14. a4 Nf5 15. Ba3 Ng3 16. Rg1 Qd7 { Bassanini,M (1962)-Martucci,M ICCF 2018 0-1 (63)}) (5. f5 Bxf5 6. gxf5 Nh6 7. e4 dxe4 8. Qe2 Nxf5 9. Qb5+ Nd7 10. Qxf5 g6 11. Qxe4 Bg7 12. Nc3 Nc5 13. Qe3 Bd4 14. Qf3 Qd7 15. Nge2 Bf6 16. Bb2 O-O-O {Wilson,G (1919)-Lynch,P (1664) ICCF 2017 1-0 (28)}) 5... e5 6. h4 exf4 7. d3 h6 8. Qd2 Nc6 9. h5 Bh7 10. Qxf4 Nf6 11. Nf3 Qd6 12. Qxd6 Bxd6 13. Bh3 Rd8 14. e3 O-O 15. Kd2 Rfe8 16. Bxf6 { Deneuville,C (2210)-Hengel,H ICCF 2010 1/2 (26)}) 5. Bg2 (5. Rh2 Qh4+ 6. Rf2 Nf6 7. e3 exf4 8. Nf3 Qg3 9. gxh5 Ne4 10. Qe2 Nc6 11. Bg2 fxe3 12. Qxe3 O-O-O 13. Kf1 Bc5 14. d4 Nxd4 15. Nxd4 Qxf2+ 16. Qxf2 Nxf2 {Engelhardt,E (2126) -Nogga,U (2375) ICCF 2007 1/2 (31)}) 5... e4 (5... Bg6 6. fxe5 h5 7. gxh5 Rxh5 8. Nf3 Nh6 9. d4 Nc6 10. Bf4 Be4 11. e3 g5 12. Bg3 Nb4 13. Na3 g4 14. hxg4 Rxh1+ 15. Bxh1 c6 16. g5 Ng4 17. Bf4 {Spiller,P-Goldschagg,F (2133) ICCF 2017 0-1 (37)}) 6. e3 Qh4+ 7. Kf1 Bg6 8. Nc3 Ne7 9. f5 Bxf5 10. gxf5 Nxf5 11. Nge2 c6 12. Qe1 Qf6 13. Qf2 Nd7 14. Ke1 Bd6 {Menten,R (2003)-Stoyanov,Z (2382) ICCF 2007 0-1 (41)}) (3. g3 Nd7 4. Bb2 c6 5. Bg2 e6 6. Nf3 Ngf6 7. h3 Bf5 8. O-O Bc5+ 9. e3 h6 10. Re1 {1-0 (10) Menten,R (2003)-Kramer,F ICCF 2007}) 3... Nc6 ( 3... e6 4. g3 (4. Nf3 Bxf3 5. exf3 Nf6 (5... Ne7 6. d4 Nf5 7. Qe2 c5 8. c3 cxd4 9. cxd4 Nc6 10. Qf2 Qa5+ 11. Nc3 Bb4 12. O-O-O Bxc3 13. Kc2 Nb4+ 14. Kb1 Qxa2+ 15. Kc1 Rc8 16. Rd2 Bxb2+ 17. Kd1 {Esposito,L (1625)-Camacho Domínguez,F (2294) ICCF 2017 0-1}) (5... Nc6 6. g3 (6. Nc3 a6 7. g3 Nf6 8. d4 Bd6 9. Bh3 Nh5 10. O-O Bxf4 11. gxf4 Nxf4 12. Bg2 Qg5 13. Rf2 Nh3+ 14. Kf1 Nxf2 15. Kxf2 O-O-O 16. Ne2 h5 17. Qd3 Kb8 {Geus,A (2172)-Ribés Colom,J (2153) ICCF 2011 0-1 (53)}) (6. Bb5 Nf6 7. Qe2 Bd6 8. Bxc6+ bxc6 9. g3 a5 10. Nc3 Nd7 11. Na4 O-O 12. O-O Re8 13. Kg2 Nb6 14. Nxb6 cxb6 15. a4 Qc7 16. Rfe1 f6 17. Qd3 e5 {Mößle,H (2377) -Saviano,M (2288) ICCF 2007 1/2 (28)}) 6... h5 7. Nc3 h4 8. Bh3 d4 9. Ne4 Qd7 10. a3 d3 11. Rc1 O-O-O 12. b4 Kb8 13. cxd3 Qxd3 14. Kf2 Qd7 15. Qe2 Nge7 16. Kg2 Nf5 17. Qc4 {Schmidt,J (2109)-Ferreira,J (2340) ICCF 2017 0-1 (41)}) 6. Bd3 (6. f5 exf5 (6... Nc6 7. fxe6 fxe6 8. Bb5 Qd7 9. O-O a6 10. Bxc6 Qxc6 11. Re1 O-O-O 12. d4 h5 13. Qd3 h4 14. h3 Nh5 15. Qc3 Qe8 16. Qe3 Rh6 17. Bc1 Bd6 18. Qd3 {Vercauteren,N (1727)-Walsh,P (1674) ICCF 2016 0-1 (32)}) 7. Qe2+ Qe7 8. Bxf6 gxf6 9. Qxe7+ Bxe7 10. Nc3 c6 11. g3 Nd7 12. Ne2 Ne5 13. f4 Ng4 14. Nd4 Nh6 15. Bd3 O-O 16. Nxf5 Nxf5 17. Bxf5 Rfe8 {Cook,D (2212)-MacGregor,C (1883) ICCF 2015 1-0 (40)}) 6... Nc6 7. O-O a6 8. f5 Bc5+ 9. Kh1 e5 10. Re1 O-O 11. Nc3 Re8 12. Ne2 Nb4 13. g4 e4 14. g5 exd3 15. Bxf6 gxf6 {Nelson,J (1590) -Shchebenyuk,M (2175) ICCF 2016 0-1}) 4... Nf6 (4... Nc6 5. Bg2 f6 (5... Nge7 6. Nh3 Qd7 7. Nf2 h5 8. Nxg4 hxg4 9. e3 f5 10. Qe2 a6 {Drost,P (2149)-Dam,J (2118) ICCF 2020}) (5... Qd7 6. Nf3 (6. h3 Bh5 7. c4 Bg6 8. Nf3 O-O-O 9. Nc3 Nge7 10. O-O d4 11. Nb5 Nf5 12. Kh2 h5 13. e3 dxe3 14. Ne5 Nxe5 15. Bxe5 a6 16. Qf3 Nd6 17. Bxd6 cxd6 {Langheld,W (2191)-Baumblüth,P ICCF 2018 1-0}) 6... O-O-O 7. e3 h5 8. h3 Bf5 9. d3 Bh7 10. Nbd2 Nh6 11. Nf1 a5 12. Bc3 f6 13. Qd2 Ba3 14. Bxa5 Qd6 15. Bc3 e5 16. fxe5 fxe5 17. d4 {Menten,R (2003)-Fric,P (2079) ICCF 2007 0-1 (28)}) 6. c4 dxc4 7. bxc4 Qd7 8. Nc3 e5 9. Nd5 exf4 10. Nxf4 Bd6 11. Nd3 Nh6 12. Nf3 O-O-O 13. c5 Be7 14. O-O Bf5 15. Rc1 Rhe8 16. Nf2 {Dearnley,A (2374)-Ferreira,N (2405) ICCF 2010 1-0 (41)}) 5. Bg2 Nc6 (5... Nbd7 6. Nc3 Bc5 7. Nf3 h5 8. Ng5 Qe7 9. h3 Bf5 10. e3 c6 11. Qe2 O-O-O 12. O-O-O Ba3 13. d3 Bg6 14. Qf2 Kb8 15. Rhe1 Bxb2+ 16. Kxb2 e5 17. fxe5 {Dearnley,A (2326)-Barreras García,A (2417) ICCF 2007 1-0 (47)}) (5... Bc5 6. Nf3 O-O 7. Nc3 Nbd7 8. e3 Qe7 9. a4 c6 10. h3 Bxf3 11. Qxf3 e5 12. O-O-O e4 13. Qf2 Ba3 14. g4 b5 15. g5 Ne8 16. axb5 a5 17. bxc6 {Langheld,W (2191)-Hebel,E ICCF 2018 0-1}) 6. Nf3 Bc5 7. d4 (7. Nc3 a6 8. Ne5 Nxe5 9. fxe5 Nd7 10. d4 Be7 11. O-O c5 12. Na4 b5 13. Nxc5 Nxc5 14. dxc5 Bxc5+ 15. Kh1 Rc8 16. Bf3 h5 17. Bxg4 hxg4 18. Qd2 d4 {Shtrikman, R (1801)-Dzenis,J (2176) ICCF 2018 0-1 (33)}) 7... Bb6 8. O-O (8. Ne5 Bf5 (8... Nxe5 9. fxe5 Nd7 10. c4 O-O 11. O-O c5 12. Rf4 Qg5 13. cxd5 exd5 14. Qd2 Rac8 15. e3 cxd4 16. Bxd4 Be6 17. Nc3 Ba5 18. Qb2 Nxe5 19. Nxd5 Bxd5 20. Bxe5 { Dearnley,A (2369)-Isigkeit,H (2385) ICCF 2009 1/2}) 9. Qd2 Nxe5 10. fxe5 Ne4 11. Bxe4 Bxe4 12. O-O Bg6 13. a4 a6 14. a5 Ba7 15. Nc3 h5 16. h4 Bf5 17. Rf2 g5 18. hxg5 Rg8 19. Kh2 Qxg5 {Dearnley,A (2336)-Millstone,M (2464) ICCF 2011 0-1 (34)}) 8... Ne7 9. c4 c5 10. Ba3 cxd4 11. c5 Bc7 12. Nxd4 O-O 13. Qd3 Bh5 14. Nd2 Bg6 15. Qe3 {Dearnley,A (2337)-Valinová,J (2341) ICCF 2012 1/2 (25)}) (3... Nf6 4. h3 Bf5 5. Nf3 e6 6. e3 (6. g4 Bg6 7. e3 Nbd7 8. Nc3 c6 9. Bg2 Bd6 10. Nh4 d4 11. exd4 Nd5 12. Nxg6 hxg6 13. Nxd5 Qh4+ 14. Kf1 cxd5 15. Qf3 Rc8 16. Ke2 O-O 17. Rac1 b5 {Dearnley,A (2326)-Connelly,K ICCF 2007 1/2}) 6... Ne4 7. g4 Be7 8. Bb5+ c6 9. gxf5 cxb5 10. fxe6 fxe6 11. Rg1 Nc6 12. Qe2 Bf6 {1/2 (12) Dearnley,A (2326)-Cretu,A (2311) ICCF 2007}) 4. h3 (4. Nf3 Bxf3 5. exf3 Qd6 6. g3 O-O-O 7. Nc3 e5 8. Nb5 Qe6 9. fxe5 a6 10. Nd4 Qxe5+ 11. Qe2 Nxd4 12. Qxe5 Nxf3+ 13. Kf2 Nxe5 14. Bxe5 Ne7 15. Bb2 Nc6 {Mößle,H (2367)-Leemans,R (2321) ICCF 2005 1/2}) 4... Bh5 (4... Bd7 5. Nf3 e6 6. e3 Nf6 7. Bb5 Bd6 8. d3 O-O 9. Bxc6 Bxc6 10. O-O b5 11. Nbd2 b4 12. Qe1 Qe7 13. Ne5 Bb7 14. Qh4 c5 15. Ndf3 Rfd8 16. Ng5 {Dearnley,A (2368)-Pereira,É (1801) ICCF 2015 1-0}) (4... Bf5 5. Nf3 d4 6. d3 e5 7. fxe5 Bc5 8. Qc1 Nge7 9. c3 Bb6 10. Na3 dxc3 11. Bxc3 Nd5 12. Nc4 Nxc3 13. Qxc3 Bc5 14. O-O-O Bg6 15. h4 h5 16. d4 {Mößle,H (2377)-Livie,G (2342) ICCF 2007 1-0 (52)}) 5. g4 e6 (5... e5 6. Bg2 (6. Nf3 e4 7. e3 Bg6 8. f5 Bxf5 9. gxf5 exf3 10. Qxf3 Qh4+ 11. Qf2 Qxf2+ 12. Kxf2 O-O-O 13. Rg1 d4 14. Bd3 Nge7 15. Na3 Nd5 16. Rg4 dxe3+ 17. dxe3 Bc5 {Tauber,H (2337)-Dibley,E (2342) ICCF 2006 1/2 (62)}) 6... Bg6 7. f5 (7. fxe5 h5 8. Nc3 d4 9. Nd5 hxg4 10. e3 gxh3 11. Rxh3 Rxh3 12. Nxh3 Qh4+ 13. Nf2 O-O-O 14. Qg4+ Qxg4 15. Nxg4 Rxd5 16. Bxd5 Nb4 17. Bc4 Nxc2+ 18. Kf2 Nxa1 {Dearnley,A (2298)-Räty,R (2352) ICCF 2006 1/2 (46)}) 7... Bxf5 8. gxf5 Qh4+ 9. Kf1 Qf4+ 10. Ke1 Qg3+ 11. Kf1 Qf4+ 12. Ke1 Be7 13. Nf3 e4 14. e3 Qxf5 (14... Qg3+ 15. Kf1 exf3 16. Qxf3 Qxf3+ 17. Bxf3 Bf6 18. Bxf6 Nxf6 19. Rg1 g6 20. Nc3 Ne7 21. Ke2 gxf5 22. Nb5 Kd7 23. c4 a6 24. Nc3 c6 25. cxd5 cxd5 26. Rac1 {Dearnley,A (2374)-Klimakovs,S (2322) ICCF 2010 0-1 (84)}) 15. Bxg7 Ne5 16. Rf1 Nxf3+ (16... exf3 17. Bxf3 Bh4+ 18. Ke2 Nf6 19. Bxh8 Qxh3 20. Rf2 Bxf2 21. Qh1 Qxf3+ 22. Qxf3 Nxf3 23. Bxf6 Bh4 24. Bxh4 Nxh4 25. Nc3 c6 26. Rh1 Ng6 27. Rxh7 {1/2 (25) Dearnley,A (2294)-Romitsyn,N (2360) ICCF 2006}) 17. Rxf3 {Dearnley,A (2370)-Marek,S (2393) ICCF 2008 1/2}) (5... Bg6 6. d3 e6 7. Nf3 h5 8. Bg2 hxg4 9. hxg4 Rxh1+ 10. Bxh1 Nh6 11. g5 Nf5 12. Qd2 a5 13. Nc3 d4 14. Nd1 a4 15. Ne5 Nxe5 16. Bxb7 Rb8 17. Be4 {Esposito,L (1625)-Bucur,M (2414) ICCF 2017 0-1 (43)}) 6. Nf3 Bg6 7. e3 h5 (7... Nge7 8. d3 h5 9. Bg2 Qd6 10. Qd2 Qc5 11. Nc3 O-O-O 12. Ne2 hxg4 13. hxg4 Rxh1+ 14. Bxh1 Qb6 15. O-O-O Ng8 16. Ned4 Bc5 17. Kb1 Nge7 18. Qg2 Nxd4 19. Nxd4 {Dearnley,A (2335)-Lindsalu,I (2268) ICCF 2012 1-0 (60)}) (7... a6 8. Bg2 h5 9. g5 h4 10. Nc3 Nge7 11. O-O Qd7 12. Ne2 O-O-O 13. Ned4 Nxd4 14. Bxd4 Bh5 15. Qe1 Bxf3 16. Bxf3 Nf5 17. Bg4 Nxd4 18. exd4 g6 19. Qe3 {Spiller,P-Thew,B (2115) ICCF 2017 1/ 2 (27)}) 8. g5 (8. Rg1 Nf6 9. Bb5 hxg4 10. hxg4 Qd6 11. Ne5 O-O-O 12. Bxc6 bxc6 13. Qe2 Kb7 14. Ba3 c5 15. Nc3 Nd7 16. Nxg6 fxg6 17. O-O-O Qc6 18. Bb2 c4 19. g5 Bb4 {Bassanini,M (1962)-Marturano,M (2006) ICCF 2018 1/2 (59)}) 8... Nge7 ( 8... a6 9. Nh4 Be4 10. Rg1 Nge7 11. Nc3 Bh7 12. Qxh5 d4 13. O-O-O Ng6 14. Nxg6 fxg6 15. Qg4 dxc3 16. dxc3 Bd6 17. Bc4 Bg8 18. Bxe6 Qe7 19. Bxg8 Rxg8 20. e4 { Dearnley,A (2367)-Campbell,E (2186) ICCF 2015 1-0 (30)}) 9. h4 (9. Bb5 h4 (9... a6 10. Bxc6+ Nxc6 11. d3 h4 12. Nbd2 Qd6 13. Qe2 Bh5 14. a3 Ne7 15. Qf2 Nf5 16. O-O-O a5 17. Rde1 a4 18. b4 c5 19. b5 c4 20. dxc4 Qc5 21. Ne5 {Dearnley,A (2360)-Burnet,L (2368) ICCF 2017 1/2 (43)}) 10. Qe2 Bxc2 11. d3 Bxb1 12. Rxb1 a6 13. Bxc6+ Nxc6 14. Rc1 Rg8 15. Ne5 Nxe5 16. Bxe5 Bb4+ 17. Kd1 c6 18. Qh5 Qe7 19. Qh7 Qf8 20. Qxh4 Bc5 {Dearnley,A (2375)-Jørgensen,P (2365) ICCF 2019 1/2 (39)}) 9... Bf5 (9... a6 10. Bg2 (10. a3 Nf5 11. Bd3 Ng3 12. Rh3 Bxd3 13. cxd3 Nf5 14. d4 Qd7 {0-1 (14) Spiller,P-Gupta,A (2022) ICCF 2017}) 10... Nf5 11. Nc3 Nb4 12. Kf2 d4 13. Na4 b5 14. e4 Nd6 15. Nc5 Nxe4+ 16. Nxe4 Bxe4 17. Nxd4 Bxg2 18. Kxg2 Bc5 19. Nf3 O-O 20. Qe2 Qd5 (20... Bd6 21. Qe4 Nd5 22. Ne5 Ne7 23. d3 Nf5 24. g6 Bxe5 25. gxf7+ Rxf7 26. Bxe5 c5 27. Rh3 b4 28. Rg1 Nh6 29. Qg6 Ng4 30. Qxe6 Qe8 31. Qd5 Rd8 32. Qe4 {Dearnley,A (2326)-Eriksson,R (2275) ICCF 2007 1/2 (43)}) 21. d4 {Dearnley,A (2341)-Figueiras,J (2327) ICCF 2008 1/2 (40) }) 10. Nc3 Bg4 11. Be2 Nf5 12. Nb5 Ng3 (12... Bxf3 13. Bxf3 Qd7 14. Bg2 a6 15. Nc3 d4 16. exd4 Nfxd4 17. Ne2 Nf5 18. Be4 O-O-O 19. c3 Nce7 20. Qc2 g6 21. Rh3 Bg7 22. d4 c6 23. O-O-O Qc7 24. Kb1 {Dearnley,A (2350)-Suto,J (2392) ICCF 2013 1/2 (39)}) 13. Rg1 Nxe2 14. Qxe2 a6 15. Nbd4 Ne7 16. Qf1 c5 17. Ne2 Nc6 18. O-O-O Qa5 19. Kb1 c4 20. Bc3 (20. g6 f6 21. Bc3 Nb4 22. Nc1 Qb6 23. Re1 O-O-O 24. Nd4 Kb8 25. Qf2 Rc8 26. f5 cxb3 27. axb3 e5 28. Ne6 a5 29. Rxg4 hxg4 30. Rg1 a4 31. Rxg4 axb3 {Dearnley,A (2350)-Douglas,S (2379) ICCF 2013 0-1 (45)}) 20... Nb4 21. Bxb4 Bxb4 22. Ned4 Bc5 23. g6 fxg6 24. Ne5 Bxd1 25. Qxd1 Bxd4 26. exd4 Rf8 27. Nxg6 Rf5 28. Qe2 Qb6 29. Qe3 Qd6 30. Ne5 Qe7 31. bxc4 dxc4 32. c3 O-O-O 33. Nxc4 Kb8 34. Qg3 Ka8 35. Ne5 Qf6 36. Nd3 Rb5+ 37. Kc2 Ra5 38. a4 Rxa4 39. Qxg7 Ra2+ 40. Kb3 Qxg7 41. Rxg7 Rxd2 42. Nc5 Re2 43. Rg6 Re8 44. Rh6 Re3 45. Rxh5 b6 46. Nd7 Kb7 47. f5 exf5 48. Nf6 Rd8 49. Rxf5 Rxd4 50. Nd5 Rh3 51. Rf7+ Kc6 52. Nb4+ Kd6 53. Nxa6 Ke5 54. Re7+ Kf5 55. Rf7+ Ke6 56. Rb7 Rd6 57. Rh7 Kf5 58. Nb4 {1/2 (58) Dearnley,A (2369)-Dmitrieva,G (2264) ICCF 2014 Bird's Opening with-1...d5}) 2... g6 (2... Nf6 3. e3 (3. g3 c6 (3... Bf5 4. d3 (4. Bg2 h6 5. O-O e6 6. b3 (6. d4 c6 7. Nh4 Bh7 8. f5 Nbd7 9. b3 Bd6 10. c4 O-O 11. e3 Re8 12. Nc3 Qa5 13. Bd2 Bb4 14. Rc1 exf5 15. cxd5 cxd5 16. Nxf5 Rac8 17. Nxd5 Rxc1 {Caponi,S-Tranquillo,M (1888) ICCF 2012 0-1 (32)}) 6... Bd6 7. Bb2 Nbd7 8. Nc3 c6 9. e3 O-O 10. d3 Re8 11. Qd2 e5 12. fxe5 Nxe5 13. Nxe5 Rxe5 14. d4 {1-0 (14) Welti,M (1931)-Sanderson,J ICCF 2008}) 4... e6 5. Bg2 Bc5 (5... Nbd7 6. O-O (6. e3 Bc5 7. Bd2 (7. Nc3 a6 8. Qe2 O-O 9. e4 dxe4 10. Nxe4 Bb6 11. Bd2 Re8 12. Nxf6+ Nxf6 13. O-O-O Qd7 14. Ne5 Qa4 15. Kb1 Bd4 16. h3 Qb5 17. b3 a5 18. g4 a4 {Perina,G (2298)-Robles,A (2096) ICCF 2018 1-0 (39)}) 7... O-O 8. Nc3 c6 9. Qe2 Re8 10. O-O-O e5 11. Nxe5 Nxe5 12. fxe5 Rxe5 13. Qf1 Bg4 14. Re1 Re8 15. h3 Be6 16. g4 h6 17. Bf3 Be7 {Lythgoe,M (1982)-Gu,K ICCF 2017 0-1 (57)} ) 6... c6 7. Qe1 Bc5+ 8. Kh1 O-O 9. Nc3 Bg6 10. e4 Re8 11. e5 Ng4 12. h3 Nh6 13. g4 Kh8 14. Ne2 a5 15. Qg3 a4 16. Bd2 a3 17. b4 {Arnold,G (2254)-Hjorth,J (1970) ICCF 2016 1-0 (29)}) (5... Be7 6. O-O O-O 7. Nc3 (7. e3 h6 8. b3 c5 9. Ne5 Nbd7 {Schmidt,T (2033)-Houglan,R (2056) ICCF 2020}) 7... h6 (7... a6 8. Ne5 Nc6 9. e4 dxe4 10. Nxc6 bxc6 11. dxe4 Qxd1 12. Rxd1 Bc5+ 13. Kh1 Bg6 14. Bf3 h5 15. Re1 Rfd8 16. Re2 Bb6 17. Kg2 Ba5 18. Bd2 Rab8 19. Be1 {Arnold,G (2254) -Sánchez Carol,J (2056) ICCF 2016 1-0 (59)}) (7... Nc6 8. e3 h6 9. b3 a6 10. Bb2 Re8 11. Ne5 Bc5 12. Qf3 Qe7 13. Nxc6 bxc6 14. Na4 Ba3 15. Bxa3 Qxa3 16. Qf2 Bg6 17. Rae1 Rad8 18. e4 Nd7 19. f5 {Kögeler,A (2224)-Zhuravlev,K (2158) ICCF 2019 1-0 (60)}) 8. Qe1 Bh7 9. e4 dxe4 10. dxe4 c6 11. Qe2 Nbd7 12. Kh1 Qc7 13. Bd2 Rfd8 14. Rad1 a5 15. Nd4 e5 16. Nf5 Bxf5 17. exf5 {Morelli,A (2263)-Bolz,J (2260) ICCF 2013 0-1 (51)}) (5... h6 6. O-O (6. a4 Bd6 7. Bd2 O-O 8. Nc3 c6 9. Nb1 Nbd7 10. Bc3 Re8 11. O-O Bh7 12. Bxf6 Qxf6 13. d4 Qd8 14. Nbd2 c5 15. e3 Nf6 16. c3 Qb6 17. Qb3 Qc7 {Arnold,G (2251)-Apsner,J (2249) ICCF 2012 1-0 (25)} ) (6. e3 c6 7. Qe2 Be7 8. Nbd2 O-O 9. Ne5 Nbd7 10. Ndf3 Nxe5 11. Nxe5 Bd6 12. g4 Bxe5 13. gxf5 Bd6 14. fxe6 fxe6 15. Bd2 e5 16. fxe5 Bxe5 17. O-O-O Qb6 { Anderson,C-Haase,F ICCF 2019 0-1 (31)}) 6... Bc5+ 7. e3 Nbd7 (7... O-O 8. h3 Nbd7 9. Bd2 c6 10. Nc3 Bh7 11. Qe1 Re8 12. b4 Bd6 13. Rb1 e5 14. fxe5 Nxe5 15. Nd4 a6 16. Nce2 Qc7 17. Rxf6 gxf6 18. Qf2 Nd7 19. Nf5 {Schmidt,T (2034) -Bolenkov,V (2160) ICCF 2019 1/2 (33)}) 8. a4 a5 9. h3 c6 10. Qe2 Qc7 11. Nbd2 g5 12. Nd4 Rg8 13. Nxf5 exf5 14. Nb3 Bb6 15. Nd4 gxf4 16. Nxf5 fxg3 17. d4 { Arnold,G (2233)-Buczinski,H (2283) ICCF 2013 1-0 (35)}) 6. e3 (6. h3 h6 7. Nc3 Nbd7 8. e3 c6 9. Qe2 O-O 10. Bd2 b5 11. Nd4 Rc8 12. g4 Bg6 13. a3 e5 14. fxe5 Nxe5 15. b4 Bb6 16. O-O h5 17. gxh5 Nxh5 {Kaminski,J (1970)-Bobkov,A (2093) ICCF 2016 0-1 (58)}) 6... O-O (6... h6 7. Qe2 Nc6 (7... Nbd7 8. Nc3 (8. Nbd2 O-O 9. b3 Qe7 10. O-O Ba3 11. Ne5 Bh7 12. Nxd7 Nxd7 13. e4 Qc5+ 14. Kh1 c6 15. d4 Qe7 16. c3 Bxc1 17. Rfxc1 Qa3 18. c4 Rfe8 19. cxd5 cxd5 {Jung,R (2309) -Camacho Domínguez,F (2324) ICCF 2018 1/2 (30)}) 8... O-O 9. Bd2 Re8 10. O-O-O e5 11. fxe5 Nxe5 12. h3 d4 13. Na4 dxe3 14. Nxc5 exd2+ 15. Qxd2 Nxf3 16. Bxf3 Qd4 17. Nb3 Qb6 18. g4 Be6 19. g5 {Kuiper,J (2500)-Gibbons,R (2339) ICCF 2012 1/2 (60)}) 8. O-O O-O 9. Nbd2 Qd6 (9... Bb6 10. Nb3 Re8 11. Nbd4 Nxd4 12. exd4 c5 13. Be3 c4 14. dxc4 dxc4 15. b3 c3 16. Ne5 Qc7 17. Bf2 Rad8 18. Rad1 Nd5 19. a3 Qd6 20. Ra1 Bc7 21. Rfe1 {Andersen,J (2198)-Ilken,Z (2192) ICCF 2012 1/2 (39)}) 10. Kh1 Bg4 11. h3 Bh5 12. d4 Bb6 13. g4 Bg6 14. c4 Qd7 15. Ne5 Nxe5 16. fxe5 Nh7 17. c5 Ba5 18. a3 {Krstic,L (2003)-Jung,B (2200) ICCF 2008 0-1 (26)}) 7. O-O Nbd7 (7... c6 8. Qe2 (8. h3 Nbd7 9. g4 Bg6 10. Nh4 Ne8 11. Nxg6 hxg6 12. Qe1 g5 13. d4 Bb6 14. fxg5 Qxg5 15. a4 a5 16. c3 e5 17. e4 Qg6 18. exd5 exd4 19. Be4 dxc3+ {Nielsen,J (1913)-Kogoj,V ICCF 2006 1/2 (58)}) 8... Nbd7 9. Nbd2 Re8 (9... h6 10. a4 (10. Nb3 Bb6 11. Bd2 Re8 12. Nbd4 Bh7 13. Ne5 Bxd4 14. exd4 Qc7 15. g4 Nxe5 16. fxe5 Nd7 17. g5 hxg5 18. Bxg5 c5 19. c3 cxd4 20. cxd4 Bg6 21. h4 Nf8 {Smail,J-Stuart,P ICCF 2009 1-0 (28)}) 10... a6 11. Kh1 Bg4 12. h3 Bxf3 13. Nxf3 Re8 14. e4 e5 15. fxe5 Nxe5 16. Nxe5 Rxe5 17. Bf4 Re6 18. e5 Nd7 19. h4 Qe8 20. Bh3 Re7 21. e6 {Renard,S-Malár,J ICCF 2015 1/2 (43)}) 10. Kh1 Bg4 11. h3 Bxf3 12. Nxf3 e5 13. fxe5 Nxe5 14. Nd4 Nc4 15. Qf2 Nd6 16. Bd2 a5 17. Rae1 a4 18. b4 axb3 19. axb3 {Owens,J (2097)-Kline,J (1955) ICCF 2016 0-1 (90)}) (7... Re8 8. Nc3 h6 9. Kh1 a6 10. Qe2 Bb6 11. e4 Bh7 12. e5 Nfd7 13. b4 Nc6 14. a3 a5 15. b5 Nd4 16. Nxd4 Bxd4 17. Bb2 a4 18. Nd1 Bxb2 19. Nxb2 { Overturf,S (1730)-Liutaia,L (1997) ICCF 2020 0-1 (27)}) 8. Nc3 (8. Qe1 h6 9. Kh1 c6 10. Nc3 Bg6 11. e4 dxe4 12. Nxe4 Nxe4 13. dxe4 Qb6 14. Nd2 a5 15. b3 a4 16. Nc4 Qc7 17. b4 Be7 18. c3 b5 19. Na5 c5 {Arnold,G (2256)-Ivanov,V (2267) ICCF 2018 1/2 (42)}) 8... c6 9. h3 (9. Qe2 Re8 10. Kh1 Bg6 (10... b5 11. a3 a5 12. Ne5 Nxe5 13. fxe5 Nd7 14. d4 b4 15. Na4 Be7 16. c4 bxc3 17. Nxc3 Bg6 18. e4 Rb8 19. h4 c5 20. h5 Bxe4 21. Nxe4 dxe4 22. Qxe4 {Knöppel,B (2050)-Díaz Rubí,F (2098) ICCF 2017 0-1 (89)}) 11. e4 e5 12. f5 Bh5 13. h3 d4 14. Nd1 Bxf3 15. Bxf3 Qb6 16. g4 h6 17. h4 Nh7 18. Rg1 f6 19. g5 fxg5 20. Bh5 Re7 {Veen,K (2101) -Voiculescu,C (2102) ICCF 2005 1-0 (36)}) (9. b3 h6 10. Qe2 Qc7 11. Bb2 b5 12. a4 b4 {1/2 (12) Mitel,C (1668)-Gérard,A (1769) ICCF 2011}) 9... Bg6 10. g4 h6 11. Bd2 Qb6 12. Qc1 Bd6 13. Ne2 e5 14. f5 Bh7 15. b4 {Thau,O (1704)-Rudi,R (1681) ICCF 2020 0-1 (27)}) (3... e6 4. Bg2 Be7 (4... b5 5. O-O a5 6. e3 c6 7. b3 a4 8. Bb2 Be7 9. c4 O-O 10. cxb5 cxb5 11. a3 axb3 12. Qxb3 Bd7 13. Ne5 Nc6 14. Nxc6 Bxc6 15. Bd4 Ra5 16. Ra2 {Arnold,G (2236)-Peiro Fernández,J (2152) ICCF 2017 1/2 (28)}) (4... Bc5 5. e3 c6 6. Nc3 O-O 7. O-O Nbd7 8. d4 Bb6 9. Ne2 c5 10. b3 cxd4 11. exd4 Re8 12. Qd3 e5 13. fxe5 Nxe5 14. Nxe5 Rxe5 15. Kh1 Re8 16. Bg5 {Ainsborough,G (1648)-Jaszczowski,Z (1630) ICCF 2020 1/2 (34)}) (4... Nbd7 5. O-O Be7 (5... b5 6. b3 Bb7 7. e3 b4 8. Bb2 a5 9. a3 Be7 10. d3 c5 11. Nbd2 O-O 12. Qe2 Qb6 13. Kh1 bxa3 14. Bxa3 a4 15. Bb2 Rfc8 16. Kg1 axb3 17. Nxb3 {Sonnenfeld,W (1942)-Hackenberg,T (1933) ICCF 2017 1/2 (30)}) 6. d3 O-O 7. Nc3 b6 8. e4 dxe4 9. dxe4 Bc5+ 10. Kh1 Ba6 11. e5 Ng4 12. h3 Nf2+ 13. Rxf2 Bxf2 14. b4 Bxg3 15. Ne4 Bh4 16. Nxh4 {Latorre López,J-Roca del Río,J ICCF 2006 0-1 (28)}) (4... c5 5. O-O Be7 6. d3 Nbd7 7. Nc3 d4 8. Ne4 Rb8 9. e3 Qb6 10. Ned2 dxe3 11. Nc4 Qc7 12. a4 Nb6 13. Nxb6 Qxb6 14. Ne5 O-O 15. Bxe3 Nd5 16. Bf2 { Latorre López,J-Caballero Prieto,J ICCF 2006 1-0 (55)}) 5. O-O (5. b3 O-O 6. Bb2 b5 7. O-O Bb7 8. e3 c5 9. d3 (9. Qe2 b4 10. c4 dxc4 11. Ne5 Bxg2 12. Qxg2 Nbd7 13. Nxc4 Nb6 14. d4 cxd4 15. Bxd4 {Kögeler,A (2125)-Hegelund,O (2110) ICCF 2016 0-1 (53)}) 9... b4 10. Qe2 (10. a3 a5 11. axb4 axb4 12. Rxa8 Bxa8 13. Nbd2 Nc6 14. e4 Qb6 15. Kh1 Qc7 16. Qe2 Bb7 17. Ra1 Nd7 18. exd5 exd5 19. d4 h6 20. Ne1 Bf6 21. Ndf3 Nb6 {Arnold,G (2254)-Lobo,A (1805) ICCF 2016 1/2 (48)}) 10... a5 11. Nbd2 Nc6 12. a4 Nd7 13. e4 Bf6 14. Bxf6 Nxf6 15. Qf2 Qb6 16. h3 Rad8 {Arnold,G (2215)-Ferre Pérez,A (2161) ICCF 2017 1/2 (37)}) 5... O-O (5... Ne4 6. d3 Bc5+ 7. e3 Nf6 8. Qe1 Ng4 9. h3 Bxe3+ 10. Bxe3 Nxe3 11. Qxe3 Qf6 12. Qe5 Qxe5 13. Nxe5 Nd7 14. Nc3 Nxe5 15. fxe5 a6 16. d4 Bd7 17. Rf4 {Picken,R (1744)-Hardwick,M (1234) ICCF 2020 1-0 (29)}) 6. d3 (6. b3 b5 (6... c5 7. Bb2 Nc6 8. Nc3 b6 9. Ne5 Bb7 10. e3 a6 11. d3 Nd7 12. Nxc6 Bxc6 13. Qe2 Bf6 14. Bf3 Qc7 15. Kh1 b5 16. e4 dxe4 17. Bxe4 Rad8 18. Bxc6 {Schanzenbächer,M-Flecher,J (1877) ICCF 2010 0-1 (29)}) 7. e3 c5 8. d3 Bb7 9. Qe2 Nc6 10. Bb2 d4 (10... b4 11. Nbd2 Re8 12. a3 Qb6 13. axb4 cxb4 14. Ne5 Nxe5 15. fxe5 Nd7 16. Rf2 Rf8 17. Bd4 Bc5 18. Nf3 Bxd4 19. exd4 h6 20. h4 Rfc8 21. Qe3 Nf8 22. Raf1 {Arnold,G (2210)-Blondel,F (1986) ICCF 2015 1-0 (36)}) 11. Ne5 Nd5 {1/2 (11) Vajas,S (1869)-Guineret,H (1770) ICCF 2020}) (6. e3 b6 (6... c5 7. d3 b5 8. Qe2 Nbd7 9. e4 Qb6 10. e5 Ng4 11. h3 Nh6 12. g4 Kh8 13. c3 Bb7 14. Be3 a5 15. Nbd2 Rac8 16. d4 b4 17. c4 cxd4 18. Nxd4 {Nielsen,J (1913)-Flecher,J (1967) ICCF 2006 1-0 (40)}) 7. d3 Bb7 8. b3 c5 9. Bb2 Nc6 10. Na3 Qc7 11. Qe2 Rad8 12. c4 a6 13. Rfe1 Rd7 14. Rac1 Nb4 15. Ne5 Rdd8 16. Bc3 dxc4 17. Naxc4 Bxg2 {Dorn,M (2151) -Ferre Pérez,A (2131) ICCF 2020 1/2}) (6. a4 c5 7. e3 Nc6 8. b3 Ng4 9. d3 b6 10. h3 Nh6 11. Na3 Bb7 12. e4 Re8 13. g4 f6 14. f5 dxe4 15. dxe4 Nf7 16. fxe6 Nfe5 17. Bf4 Bd6 {Malnar,A (2407)-Sýkora,J (2442) ICCF 2019 1/2}) (6. d4 c6 7. Nc3 b5 8. e3 a5 9. Ne5 Bb7 10. Qe2 Nbd7 11. Nd3 a4 12. Bd2 Nb6 13. Nd1 Nc4 14. Be1 Nd7 15. e4 f5 16. e5 c5 17. Bf2 g5 {Morton,P (1578)-Gosling,D (1509) ICCF 2017 1-0 (42)}) 6... c5 (6... b5 7. a4 (7. c3 a5 8. Na3 b4 9. Nc2 c5 10. c4 Bb7 11. Nd2 Qb6 12. e4 dxe4 13. dxe4 Nfd7 14. Qe2 Nc6 15. e5 Nd4 16. Qd3 Bxg2 17. Kxg2 Qb7+ 18. Kg1 a4 {Renard,S (1873)-Blondel,F (1986) ICCF 2015 1/2 (48)}) (7. b3) 7... b4 8. Nbd2 Ng4 9. Nb3 c5 10. e4 c4 11. dxc4 dxc4 12. Nbd4 Bc5 13. c3 Nc6 14. e5 Rb8 15. Kh1 Bb7 16. Ng5 bxc3 17. Qc2 g6 18. Nxc6 {Burmeister,F (2216)-Sisák,R (2286) ICCF 2020 0-1 (38)}) 7. c3 (7. a4 Nc6 8. e3 (8. Na3 a6 9. c4 b6 10. e4 dxe4 11. dxe4 h5 12. Qe2 Bb7 13. Nc2 Nd4 14. Nfxd4 cxd4 {De Smet, K (2192)-Groot,P (2352) ICCF 2020}) 8... Qb6 9. b3 Ng4 10. h3 Nh6 11. Na3 Rd8 12. Qe2 Bf6 13. Rb1 Bc3 {0-1 (13) Kuusik,J (2229)-Reede,A (2036) ICCF 2018}) ( 7. Na3 Nc6 8. c4 d4 9. Bd2 Qc7 10. Qe1 a6 11. e4 e5 12. Nc2 b5 13. b3 Rb8 14. Qe2 bxc4 15. dxc4 Bd6 16. f5 h6 17. Nfe1 Be7 18. Nd3 Bb7 {Noiré,E (2214) -Glaser,K (2165) ICCF 2007 1-0 (45)}) (7. Nc3 d4 8. Ne4 Nxe4 9. dxe4 Bd7 10. e3 Bb5 11. Rf2 Nc6 12. Bf1 Bxf1 13. Qxf1 Qc7 14. exd4 Nxd4 15. Ne5 Nc6 16. Nf3 Rad8 17. c3 Qa5 18. Be3 Qa4 {Sedlácek,T (2229)-Lukasevicius,P (2058) ICCF 2017 1/2 (34)}) 7... Nc6 (7... Qc7 8. Na3 Nc6 9. Qe1 Qb6 10. Kh1 Qa6 11. Nc2 Bd6 12. a4 Na5 13. Be3 Nb3 14. Ra3 Ng4 15. Bg1 c4 16. Nb4 Qa5 17. dxc4 dxc4 18. e4 Rd8 19. h3 {Ellis,J (2064)-Reede,A (2057) ICCF 2016 1-0 (57)}) 8. Qc2 (8. Qe1 b5 9. e4 dxe4 10. dxe4 Ba6 11. Qe2 (11. e5 Nd5 12. Nbd2 Qb6 13. Ne4 b4 14. Rf2 Bd3 15. Bf1 Bxe4 16. Qxe4 bxc3 17. Bd3 g6 18. Kg2 Rfd8 19. Bc4 Rab8 20. bxc3 Nxc3 21. Qe3 Nd1 22. Qe2 Nxf2 {Picken,R (1744)-Gunn,T (2155) ICCF 2020 0-1}) 11... Qb6 12. Nbd2 Rfd8 13. Kh1 b4 14. c4 Nd4 15. Nxd4 cxd4 16. b3 Bb7 17. Bb2 a5 18. h3 a4 19. bxa4 d3 {Grimbergen,M-Mulder,J ICCF 2013 0-1}) (8. Kh1 Qc7 9. Re1 Rd8 10. Be3 b6 11. Bg1 Bb7 12. Qc2 Rd7 13. Nbd2 Rad8 14. a3 Bf8 15. Rab1 e5 16. fxe5 Nxe5 17. Nxe5 Qxe5 18. d4 Qc7 19. Nf3 cxd4 {Bassanini,M (1745)-Darias Mateos,A ICCF 2006 1-0 (39)}) 8... Bd7 (8... Qc7 9. e4 c4 10. e5 cxd3 11. Qxd3 Ng4 12. Kh1 Qb6 13. Qe2 Bd7 14. h3 Nh6 15. g4 Na5 16. Nd4 f5 17. g5 Nf7 18. Be3 Nc4 19. g6 hxg6 20. Nxf5 {Recasens Sánchez,J (2029)-Sciarretta,R ICCF 2007 1/2 (60)}) 9. e4 c4 10. e5 cxd3 11. Qxd3 Ng4 12. h3 Qb6+ 13. Nd4 Nxd4 14. cxd4 Bb5 15. Qd1 {Narusberg,P-Reede,A (1976) ICCF 2013 0-1 (61)}) (3... b6 4. Bg2 Bb7 5. O-O e6 (5... Nbd7 6. b3 g6 7. d3 Bg7 8. a4 O-O 9. Qd2 Ne4 10. dxe4 Bxa1 11. c3 dxe4 12. Nd4 e3 13. Qxe3 Bxg2 14. Kxg2 e6 15. Ba3 Re8 16. Nd2 Bxc3 17. Qxc3 { White,C (1766)-Safari Nejad,R (1781) ICCF 2015 1-0}) 6. b3 c5 (6... Be7 7. Bb2 O-O 8. e3 c5 9. Qe2 Nc6 10. d3 Qc7 11. c4 Rad8 12. Nbd2 Ng4 13. h3 Bf6 14. Bxf6 Nxf6 15. Rad1 Rfe8 16. e4 dxe4 17. dxe4 e5 18. fxe5 {Thau,O (1771)-Malmström,J (1878) ICCF 2019 0-1}) 7. Bb2 Nc6 8. e3 g6 9. Qe2 Bg7 10. d3 O-O 11. Ne5 Ne7 12. Nd2 Nd7 13. Ndf3 Nxe5 14. Bxe5 Bxe5 15. fxe5 {Sedlácek,T (2229)-Repanic,F (2159) ICCF 2017 1/2}) (3... c5 4. Bg2 Nc6 5. O-O e6 (5... Bf5 6. d3 e6 (6... g6 7. Nc3 Bg7 8. Re1 O-O 9. Ne5 Nxe5 10. fxe5 Ng4 11. Nxd5 Nxe5 12. Bg5 f6 13. Bf4 Qd7 14. d4 cxd4 15. Qxd4 Nc6 16. Qc4 Kh8 17. Rad1 e5 18. Be3 {Schmidt,T (2136)-den Drijver,D (2052) ICCF 2017 1-0}) 7. Ne5 Qc7 8. c4 Bd6 9. Nxc6 bxc6 10. cxd5 cxd5 11. e4 dxe4 12. dxe4 Bxe4 13. Bxe4 Nxe4 14. Qa4+ Qd7 15. Qxe4 O-O 16. Rd1 Rfd8 17. Na3 {Caponi,S-Paulus,K (1662) ICCF 2013 1-0 (45)}) 6. d3 (6. c4 d4 7. e3 Be7 8. Na3 O-O 9. b3 Qb6 10. Qe2 Bd7 11. Bb2 Rfd8 12. Ne5 Be8 13. Nc2 Nxe5 14. fxe5 d3 15. Qf3 Bc6 16. Qf2 Bxg2 17. exf6 Bxf6 {Arnold,G (2221) -Palladino,M (2221) ICCF 2016 1/2}) 6... b6 (6... Be7 7. Qe1 (7. e4 dxe4 8. dxe4 Qxd1 9. Rxd1 Nxe4 10. Ne5 Nxe5 11. fxe5 f5 12. exf6 Nxf6 13. Re1 O-O 14. Na3 Rd8 15. Bf4 Nd5 16. Be5 Bf6 17. Rad1 Bd7 18. Nc4 Bxe5 {Arnold,G (2216) -Ferre Pérez,A (2194) ICCF 2017 1/2}) (7. e3 b5 8. e4 dxe4 9. dxe4 O-O 10. Qe2 Ba6 11. e5 Nd5 12. Rd1 Qb6 13. Kh1 b4 14. Qe4 Nd4 15. Nxd4 cxd4 16. Qxd4 Bc5 17. Qe4 Rad8 18. Qf3 Ne3 {Spasov,V (2452)-Said,O ICCF 2005 0-1 (35)}) (7. Nc3 O-O 8. e4 d4 9. Ne2 Qd7 10. h3 b6 11. g4 Bb7 12. Ng3 Ne8 13. Qe2 b5 14. e5 Nc7 15. f5 Nd5 16. f6 gxf6 17. exf6 Nxf6 18. Bh6 Qc7 {Jensen,K (2153)-Robertson,D (2202) ICCF 2015 1-0 (36)}) (7. c3 Bd7 8. Nbd2 O-O 9. e4 dxe4 10. dxe4 b5 11. Qe2 a6 12. e5 Nd5 13. Ne4 c4 14. g4 Qb6+ 15. Kh1 f5 16. exf6 Nxf6 17. Be3 Qc7 18. Nxf6+ Bxf6 {Groot,P (2290)-Verbiest,J (1718) ICCF 2020 1-0}) 7... O-O 8. e4 dxe4 (8... Re8 9. e5 Nd7 10. c4 dxc4 11. dxc4 Nb6 {Taner,H (2358)-Hatipoglu,M (1910) ICCF 2014}) 9. dxe4 b6 10. c4 Bb7 11. e5 Ng4 12. h3 Nh6 13. g4 Kh8 14. Be3 Rb8 15. Nc3 a6 16. Rd1 Qc7 17. f5 Nxe5 18. Nxe5 {Schrade,A-Scavo,S (1452) ICCF 2017 1-0 (30)}) (6... Qb6 7. c4 dxc4 8. dxc4 Be7 9. Qb3 Qxb3 10. axb3 O-O 11. Rd1 a6 12. Nc3 Nd7 13. Be3 Bf6 14. Rd2 Rd8 15. Ne4 Be7 16. Rad1 Kf8 17. Nd6 {Caponi,S-Scopelliti,L ICCF 2013 1-0}) (6... Bd6 7. Nc3 a6 8. a4 Bd7 9. e4 Bc7 10. exd5 Nxd5 11. Nxd5 Ba5 12. Nc3 Bxc3 13. bxc3 O-O 14. Be3 Qe7 15. Qb1 Rab8 16. Qb6 Qd6 17. Bxc5 Qd5 18. Ne5 {Ainsborough,G (1623)-Aannevik,B (1194) ICCF 2020 1-0}) 7. Re1 Bb7 8. Nbd2 Be7 9. c3 O-O 10. e4 b5 11. exd5 Nxd5 12. Ne4 Qb6 13. Qe2 Rad8 14. Nf2 a5 15. a4 {Arnold,G (2256)-Rivas Maceda,J (2315) ICCF 2018 1-0 (67)}) (3... Nc6 4. Bg2 Bf5 (4... Qd6 5. d3 Bg4 6. O-O e5 7. fxe5 Nxe5 8. Bf4 Qb6+ 9. Kh1 Nxf3 10. exf3 Be6 11. Nd2 Bd6 12. Bxd6 Qxd6 13. f4 g6 14. Nf3 O-O 15. Ne5 c5 16. Re1 {Ainsborough,G (1616)-Rozko,A ICCF 2019 1-0 (30)}) ( 4... e6 5. O-O Bc5+ (5... Bd6 6. d3 O-O 7. Nc3 d4 8. Ne4 Nxe4 9. dxe4 e5 10. Qd3 (10. f5 b6 11. e3 Ba6 12. Re1 Bb4 13. Bd2 dxe3 14. Bxb4 Nxb4 15. Qc1 e2 16. Nxe5 Qd4+ 17. Kh1 Qxe5 18. a3 Nc6 19. c3 Bd3 20. Qe3 Ba6 21. g4 Qd6 {Latorre López,J-Tobella Torras,J ICCF 2007 0-1 (26)}) 10... b6 11. e3 Nb4 12. Qe2 Ba6 13. Qf2 Bxf1 14. Bxf1 Bc5 15. exd4 exd4 16. Bd3 Nxd3 17. cxd3 {Latorre López, J-Quiroga Martínez,J ICCF 2007 0-1 (31)}) 6. e3 O-O (6... d4 7. c3 dxe3 8. d4 Bb6 9. Bxe3 Nd5 10. Bd2 O-O 11. Na3 a6 12. Nc4 Ba7 13. Nce5 Nce7 14. Kh1 Nf5 15. Re1 f6 16. Nd3 Qe8 17. Nh4 Qd7 18. Nxf5 {Mitel,C-Madelaine,J ICCF 2009 1-0 (33)}) 7. d4 Bb6 8. c3 h6 9. Ne5 Nxe5 10. dxe5 Ne4 11. Bxe4 dxe4 12. Qxd8 Rxd8 13. Nd2 Bxe3+ 14. Kh1 Bxd2 15. Rd1 e3 16. Bxd2 {Latta,D-Dressler,R ICCF 2014 0-1}) (4... Bg4 5. O-O (5. c3 e6 6. Qb3 Bxf3 7. Bxf3 Rb8 8. d4 Be7 9. Nd2 O-O 10. e4 Qd7 11. e5 Ne8 12. O-O Nd8 13. Qc2 c5 14. dxc5 Bxc5+ 15. Kg2 f6 16. c4 Be7 {Vecek,M (2218)-Lyashenko,S (1987) ICCF 2012 1-0 (34)}) 5... Qd7 6. d3 O-O-O 7. Nc3 Bh3 8. a3 h6 9. e4 dxe4 10. dxe4 Nxe4 11. Qxd7+ Bxd7 12. Nxe4 Bg4 13. Ne5 Be6 14. Nxc6 bxc6 15. Be3 Bf5 16. Bxa7 {Latorre López,J-Lagarejos Santano,J ICCF 2007 1-0 (35)}) (4... g6 5. e3 (5. Nc3 d4 6. Na4 Bg7 7. O-O Qd6 8. c4 O-O 9. b3 e5 10. fxe5 Nxe5 11. Nxe5 Qxe5 12. e3 dxe3 13. Bb2 Qg5 14. dxe3 Qxe3+ 15. Kh1 Ng4 16. Bxg7 Kxg7 {Chouraqui,G (2258)-Hladecek,M (2422) ICCF 2011 0-1 (59)}) (5. O-O Qd6 6. d3 h6 7. Nc3 Bf5 8. Ne5 Nxe5 9. fxe5 Qxe5 10. Nb5 d4 11. Bxb7 {1-0 (11) Latorre López,J-Blanco Martin,C ICCF 2006}) 5... Bg7 6. Nc3 O-O 7. d4 Bf5 8. a3 Ne4 9. Nxe4 Bxe4 10. O-O Qd6 11. b3 Rac8 12. Bb2 Nb8 13. Bh3 e6 14. Ng5 c5 15. Nxe4 dxe4 16. c3 {Vecek,M (2312)-Broniek,M (2156) ICCF 2013 1/2 (30)}) 5. d3 (5. O-O Qd7 6. d3 (6. Re1 Bh3 7. Bh1 h5 8. Ne5 Nxe5 9. fxe5 Ng4 10. d4 e6 11. Bg2 Bxg2 12. Kxg2 h4 13. h3 Nh6 14. g4 c5 15. c3 cxd4 16. cxd4 Be7 17. Nc3 f6 {Smail,J-Harrington,T (1522) ICCF 2011 1-0 (36)}) 6... Bh3 7. Ne5 Nxe5 8. fxe5 Bxg2 9. Kxg2 Ng4 10. d4 h5 11. h3 Nh6 12. Nc3 Nf5 13. Qd3 g6 14. Nxd5 h4 15. Nf4 hxg3 16. e6 Qd6 {Masset,J (1909)-Devaux,V ICCF 2012 1-0}) 5... e6 6. c3 Bd6 7. Qb3 a6 8. Nh4 Bc5 9. Nd2 O-O 10. Nf1 Re8 11. Be3 Qd6 12. Qc2 d4 13. Bg1 Nd5 14. Rc1 Bg4 15. h3 {Arnold,G (2233)-Cofer,D (1789) ICCF 2013 1-0 (85)}) (3... Bg4 4. Bg2 Nbd7 5. O-O c6 (5... Bxf3 6. exf3 e6 7. a4 Bc5+ 8. Kh1 d4 9. c3 O-O 10. b4 Be7 11. Ba3 a5 12. Ra2 axb4 13. cxb4 Nb6 14. f5 exf5 15. a5 Nbd5 16. b5 Bxa3 17. Rxa3 {Dam,J-Taffijn,M ICCF 2014 0-1 (31)}) 6. d3 Qc7 (6... e6 7. c3 Qb6+ 8. Kh1 Bxf3 9. Bxf3 h5 10. h4 Ng4 11. Bxg4 hxg4 12. e4 dxe4 13. dxe4 Qa6 14. Nd2 O-O-O 15. Qxg4 Nf6 16. Qf3 Rd3 17. Qg2 Bc5 18. e5 {Muñoz Portugal,G (2339)-Cillóniz Razzeto,A (2419) ICCF 2011 0-1}) 7. Nc3 e6 8. Qe1 Bc5+ 9. Kh1 d4 10. Nd1 Bxf3 11. Bxf3 O-O 12. e4 dxe3 13. Nxe3 Rfe8 14. a4 e5 15. Nc4 {Arnold,G (2216)-Loisel,D (2142) ICCF 2017 1/2 (32)}) (3... g6 4. Bg2 (4. b3 Bg7 5. Bb2 O-O 6. Bg2 Nc6 7. O-O Bf5 8. e3 Qd6 9. Qe2 Bxc2 10. d3 Bxb1 11. Raxb1 a5 12. Ne5 Nd7 13. Nxc6 bxc6 14. Rfc1 Bxb2 15. Rxb2 Ra6 { Bruce,R-Rattay,W (1926) ICCF 2013 1-0}) 4... c5 5. b3 (5. d3 Bg7 6. O-O O-O 7. Qe1 (7. Ne5 Nbd7 (7... Ng4 8. Nxg4 Bxg4 9. h3 Be6 10. e4 Qd7 11. Kh2 Nc6 12. c3 Rad8 13. Qe2 b5 14. Nd2 d4 15. e5 c4 16. dxc4 bxc4 17. Ne4 d3 18. Qe3 {1/2 (18) Liutaia,L (1997)-Lanzani,P (2227) ICCF 2020}) 8. Nxd7 Bxd7 9. e4 dxe4 10. dxe4 Bc6 11. e5 Bxg2 12. Kxg2 Qd5+ 13. Qf3 Qxf3+ 14. Rxf3 Nd5 15. Nc3 Nb4 16. Rf2 Rad8 17. Be3 b6 {1/2 (17) Pallás Muiño,J (2318)-Guevara i Pijoan,J (2326) ICCF 2018}) (7. Nbd2 Ng4 (7... Nc6 8. h3 Nh5 9. Kh2 e5 10. fxe5 Nxe5 11. e3 Qc7 12. Qe1 Nc6 13. Nb1 Nb4 14. Na3 Bd7 15. Qf2 Rae8 16. Rb1 b5 17. Bd2 a6 18. Ng1 d4 { MacGregor,C (1902)-Cumming,D (2288) ICCF 2011 0-1 (32)}) 8. Nb3 Qb6 9. e3 Nc6 10. Re1 d4 11. exd4 cxd4 12. h3 Ne3 13. Bxe3 dxe3 14. d4 e6 15. Rxe3 Rd8 16. c3 a5 17. Re2 a4 18. Nc5 a3 {Harangus,E-Bielewicz,J ICCF 2006 1-0}) (7. c4 dxc4 ( 7... d4 8. Nbd2 Nc6 9. Nb3 Qb6 10. h3 a5 11. a4 Qc7 12. e3 dxe3 13. Bxe3 Nh5 14. Bf2 b6 15. d4 Rb8 16. Ne5 Nxe5 17. dxe5 f6 18. exf6 Bxf6 19. Nd2 {Harangus, E (1850)-Szerlak,A (1866) ICCF 2014 1/2 (57)}) 8. dxc4 Nc6 9. Nc3 Be6 10. Qa4 Nd7 11. Rd1 Nd4 12. Nxd4 cxd4 13. Nd5 Nb6 14. Nxb6 axb6 15. Qb4 Qc7 16. Bd5 Bxd5 17. cxd5 Qc2 18. Rd2 Qe4 {Schulz,B (1756)-Severins,J ICCF 2013 0-1 (30)}) (7. a4 Nc6 8. Nc3 d4 9. Ne4 Nxe4 10. dxe4 Qc7 11. e5 Bf5 12. c3 Rfd8 13. Qe1 dxc3 14. bxc3 Be4 15. Bh3 Na5 16. Nd2 Bc6 17. Rf2 h6 18. e4 Rd3 {Fagerbekk, E-Carbajal,C (2011) ICCF 2005 1/2 (44)}) 7... d4 (7... b6 8. c4 Bb7 9. cxd5 Nxd5 10. Nc3 Nc6 11. Bd2 Ndb4 12. Qf2 Qd7 13. Rac1 Rac8 14. a3 Na6 15. Rb1 Rcd8 16. Rbd1 Qc8 17. Be3 Nd4 18. Ne5 Bxg2 19. Qxg2 {Nordin,N (1930)-Lindberg,W (2110) ICCF 2018 0-1 (43)}) 8. Na3 (8. e4 dxe3 9. Bxe3 (9. Qxe3 Nc6 10. Qxc5 Ng4 11. Na3 Nd4 12. Ne5 Bf5 13. Nxg4 Bxg4 14. c3 Ne2+ 15. Kh1 Qxd3 16. Qf2 b5 17. Re1 b4 18. h3 Bxh3 19. Bxh3 Nxc1 {Nordin,N (1930)-Leent,D (2017) ICCF 2018 0-1 (25)}) 9... Ng4 (9... Nc6 10. Na3 (10. Nbd2 b6 11. Nc4 Bb7 12. Nfe5 Qc7 13. Bxc6 Bxc6 14. Nxc6 Qxc6 15. Bd2 Nd5 16. Ne5 Qd6 17. Qf2 e6 18. a4 Rfd8 19. b3 a6 20. Bc1 Rac8 21. Bb2 Qc7 {Metsemakers,P (2094)-Zawadka,Z (2187) ICCF 2018 1/ 2 (30)}) 10... Be6 11. Rd1 Ng4 12. Bxc5 b6 13. h3 bxc5 14. hxg4 Bxg4 15. c3 Rc8 16. Nc4 e6 17. Ne3 Bxf3 18. Rxf3 Ne7 19. g4 Nd5 20. Nc4 Nb6 {Akdag,M (2568) -Svácek,P (2559) ICCF 2017 1/2 (42)}) 10. Ne5 Nxe5 11. fxe5 Bxe5 12. Nc3 Bd4 ( 12... Na6 13. Rd1 Bd4 14. Nd5 Be6 15. Nf4 Nc7 16. c3 Bxe3+ 17. Qxe3 Qd6 18. Rd2 Rab8 19. b3 b6 20. d4 Rbd8 21. Rff2 {Sonnenfeld,W (1904)-Lorenz,B ICCF 2017 1-0 (73)}) 13. Ne4 Bf5 14. Nxc5 Nc6 15. Qf2 Rc8 16. c3 Bxc5 17. Bxc5 Qxd3 18. Rae1 Qd7 {1/2 (18) Avchinikov,V (2256)-Korzh,L (2171) ICCF 2015}) (8. c4 Nc6 9. h3 Re8 10. Na3 Qc7 11. g4 (11. Qf2 Be6 12. Nc2 Qc8 13. g4 Rd8 14. Nh4 Qc7 15. f5 Bd7 16. Bf4 Qb6 17. Rab1 gxf5 18. Nxf5 Bxf5 19. gxf5 Nh5 20. Bh2 Nf6 21. Kh1 Kh8 22. Rg1 Rg8 {Kaminski,J (2004)-Cole,S (1939) ICCF 2015 1-0 (52)}) 11... a6 12. Bd2 h5 13. g5 Nd7 14. Qf2 e6 15. Nc2 b6 16. b4 Bb7 17. a4 Reb8 18. Rfb1 Kh7 19. Kh2 Ne7 {Nordin,N (1922)-Lahdenmäki,L (2029) ICCF 2018 1/2 (39)}) (8. Ne5 Nbd7 9. Nc4 Nb6 10. Nba3 Nbd5 11. Ne5 Be6 12. Bd2 Rb8 13. c4 Ne3 14. Bxe3 dxe3 15. Rb1 Ng4 16. Nxg4 Bxg4 17. Kh1 Qd7 18. Nc2 Bd4 19. a4 h5 {Deakin, C-McCartney,P (1900) ICCF 2020 1/2 (30)}) 8... Nc6 9. c3 (9. Bd2 Be6 10. c4 Qd7 11. Nc2 a5 12. Na3 b6 13. Nb5 h6 14. Nh4 Bh3 15. Qf2 Bxg2 16. Qxg2 Rae8 17. Rad1 e5 18. fxe5 Rxe5 19. Bxh6 {Mengelkamp,B-Belanoff,S (2231) ICCF 2018 0-1 (77)}) (9. Nc4 Be6 (9... Nd5 10. e4 dxe3 11. Bxe3 (11. Nxe3 Nxe3 12. Bxe3 c4 13. dxc4 Bxb2 14. Rd1 Qc7 15. c3 Na5 16. Rd5 Ba3 17. Nd4 e6 18. Nb5 Qe7 19. Rd1 Nxc4 20. Nxa3 Nxe3 21. Qxe3 Qxa3 22. Rf2 Qa5 {Jensen,K (2170)-Waltmans,F (2328) ICCF 2015 1/2 (34)}) 11... Nxe3 12. Qxe3 Nd4 13. Qf2 Nxf3+ 14. Qxf3 Rb8 15. a4 Qd4+ 16. Kh1 Be6 17. c3 Qd7 18. Rfe1 Rfd8 19. Re3 Bf5 20. a5 Bf6 21. Bf1 { Molina Navarro,J (2046)-Alonso Cano,M ICCF 2012 1/2 (32)}) 10. Nfe5 Nxe5 11. Nxe5 Bd5 12. Bh3 (12. e4 dxe3 13. Bh3 b6 14. Bxe3 e6 15. c4 Bb7 16. d4 cxd4 17. Rd1 Qc7 18. Bxd4 Rad8 19. Bg2 Bxg2 20. Kxg2 Qb7+ 21. Kg1 Rd6 22. Qe2 Rfd8 23. Be3 Ne4 {Fister,B (2283)-Oger,C (2362) ICCF 2013 1/2}) 12... b6 13. c4 dxc3 14. bxc3 c4 15. Be3 Qc7 16. Bd4 Rad8 17. a4 cxd3 18. exd3 e6 19. Rf2 Nd7 20. a5 bxa5 {Koskinen,E (2283)-Manninen,A (2305) ICCF 2017 1/2 (37)}) (9. e4 dxe3 10. Nc4 (10. Qxe3 b6 11. Nc4 Qc7 12. Qe2 Bb7 13. c3 Rad8 14. a4 Ne8 15. a5 Nxa5 16. Nxa5 bxa5 17. Ne5 Bxg2 18. Kxg2 Nd6 19. Qf3 Rc8 20. Be3 Rb8 21. Rf2 e6 { Beyer Lecaros,A (1996)-De la Calle,I (2240) ICCF 2015 1/2 (38)}) 10... Nd4 11. Nxe3 Ng4 12. Nxd4 Nxe3 13. Bxe3 cxd4 14. Bd2 Be6 15. a4 Rc8 16. Rf2 Qd7 17. Bb4 Rc7 18. Re2 Rfc8 19. Qf2 Bf6 20. b3 Bg4 {Beltins,G (1867)-Alonso Cano,M (2144) ICCF 2013 0-1 (71)}) 9... Be6 (9... Nd5 10. Bd2 Bg4 (10... e5 11. fxe5 Nxe5 12. Nxe5 Bxe5 13. Nc2 dxc3 (13... a5 14. Rc1 Be6 15. a3 Ne7 16. c4 a4 17. e3 dxe3 18. Bxe3 Qxd3 19. Bxc5 Bd6 20. Bxd6 {1-0 (20) Engelen,J (2339)-Pranjic,M (2365) ICCF 2015}) (13... Bg7 14. c4 Nf6 15. b4 cxb4 16. Nxb4 Ng4 17. Nc2 Rb8 { Taner,H (2358)-Buker,M (1900) ICCF 2014}) 14. bxc3 Re8 15. Rb1 Rb8 16. c4 Nf6 17. Bg5 Kg7 18. Qd2 Qc7 19. Ne1 Bg4 20. Nf3 Bxf3 21. Bxf3 Qd7 22. Kg2 {Alejos, P (2041)-Sánchez Manzanares,J ICCF 2014 1/2 (45)}) (10... Rb8 11. Nc2 b6 12. c4 Nf6 13. h3 Bb7 14. g4 Qc7 15. f5 gxf5 16. gxf5 e6 17. Qh4 Ne7 18. Bf4 Qc8 19. Bxb8 Nxf5 20. Qf4 Bh6 21. Qc7 {Westin,Å (2304)-Merrell,W (2312) ICCF 2018 1/2 (50)}) 11. Nc2 a5 12. a4 (12. h3 Bxf3 13. Bxf3 Qd7 14. c4 Ndb4 15. Nxb4 Nxb4 16. Rb1 Qxh3 17. Bxb7 Rab8 18. Bg2 Qd7 19. Be4 Nxa2 20. Bxa5 Rb3 21. f5 Rfb8 { 0-1 (21) Caponi,S-Dugo,I ICCF 2013}) 12... Nb6 13. c4 Nd7 14. Na3 e5 15. Nb5 Nb4 16. Qf2 exf4 17. Bxf4 Ra6 18. h3 Bxf3 19. Bxf3 Be5 20. Bh6 Re8 21. Bxb7 { Mengelkamp,B-Vecek,M (2278) ICCF 2018 0-1 (55)}) (9... dxc3 10. bxc3 Nd5 11. Bd2 Nb6 12. Rc1 Be6 13. Rc2 c4 14. d4 Bc8 15. e4 e6 16. Qe2 Na5 17. Bc1 Bd7 18. Ne5 Ba4 19. Rd2 Qc7 20. Nc2 Rad8 21. Ba3 {Smail,J-Glassmire Jr.,W (1927) ICCF 2010 1-0 (39)}) (9... Re8 10. Nc4 Be6 11. Nce5 Nxe5 12. Nxe5 Rb8 13. e4 dxc3 14. bxc3 Ng4 15. Nxg4 Bxg4 16. Qd2 b5 17. Bb2 Bd7 18. f5 a5 19. Rf2 b4 20. cxb4 Bxb2 21. Qxb2 {Taylor,B (2141)-Sharpe,S (2388) ICCF 2019 0-1 (40)}) 10. Nc2 ( 10. Ng5 Bd5 (10... Bf5 11. Nc4 Rc8 12. h3 h6 13. Nf3 Be6 14. Nce5 Nd5 15. Kh2 Qd6 16. e4 dxe3 17. Nc4 Qd7 18. Bxe3 Nxe3 19. Qxe3 Rfd8 20. Rad1 Bd5 21. Rfe1 e6 22. Qf2 {Heß,H (2355)-Galkowski,L (2394) ICCF 2006 1/2 (50)}) 11. e4 dxe3 12. Ne4 c4 13. Nxc4 Nxe4 14. Bxe4 Bxe4 15. dxe4 Qd3 16. Na3 e2 17. Rf2 Nd4 18. cxd4 Bxd4 {0-1 (18) Overturf,S (1730)-Tickel,W ICCF 2020}) (10. Bd2 Qb6 (10... Nd5 11. Nc2 Bg4 (11... Nf6 12. c4 a5 13. h3 Ne8 14. g4 Qb6 15. Ng5 Bd7 16. Rb1 Nf6 17. Qh4 {1/2 (17) Nordin,N (1930)-Senzacqua,F (2025) ICCF 2018}) 12. c4 Nf6 13. h3 Bxf3 14. Bxf3 Qd7 15. g4 b6 16. b4 Rac8 17. b5 Nb8 18. Qg3 a5 19. Rf2 Qc7 20. Rh2 h6 21. h4 Nh7 22. Qh3 {Caponi,S-Di Pietro,R (1637) ICCF 2012 1-0 (33)}) 11. Ng5 Bd5 12. Bxd5 Nxd5 13. Rb1 Qa6 14. c4 Nf6 15. h3 Rad8 16. g4 e5 17. fxe5 Nxe5 18. Nb5 Rd7 19. Nf3 Re8 20. Nxe5 Rxe5 21. Bf4 Ree7 {Heß,H (2358) -Grebenkin,V ICCF 2005 0-1 (65)}) 10... Qd7 11. Bd2 Rac8 12. c4 Rfe8 13. b4 cxb4 14. Rb1 Bh3 15. Nxb4 Bxg2 16. Kxg2 e5 {Zhdanenia,K (2299)-Hehir,M (2252) ICCF 2017 1/2 (37)}) 5... Bg7 6. Bb2 O-O 7. O-O Bf5 8. Nc3 Nc6 9. Re1 Rc8 10. a3 d4 11. Na2 e5 12. Nxe5 Nxe5 13. fxe5 Ng4 14. Nc1 b5 15. a4 {Marconi,N-Züger, A (1966) ICCF 2020 (40)}) 4. Bg2 (4. d3 Bg4 5. Bg2 Qb6 6. Ne5 Nbd7 7. h3 Be6 8. Nxd7 Bxd7 9. e3 Qc7 10. Nd2 e5 11. Nf3 exf4 12. exf4 O-O-O 13. Ne5 Be6 14. O-O Bd6 15. Qf3 Rhg8 {Sedlácek,T (2229)-Marbourg,D (2268) ICCF 2017 1/2 (54)}) 4... Qb6 (4... Bg4 5. e3 (5. h3 Bxf3 6. Bxf3 e6 7. Nc3 Nbd7 8. d4 Bb4 9. Qd3 O-O 10. Bd2 Nb6 11. a3 Bxc3 12. Bxc3 a5 13. g4 Na4 14. h4 Ne8 15. h5 Nd6 16. h6 g6 { García Rosales,J (1848)-Cacheiro Martinez,M ICCF 2013 1/2 (40)}) 5... Bxf3 6. Bxf3 h5 7. b3 h4 8. g4 Nbd7 9. Bb2 e6 10. Qe2 Qc7 11. g5 Ne4 12. Bxe4 dxe4 13. Nc3 f5 14. gxf6 Nxf6 15. Qc4 Nd5 16. Qxe4 {Aycock,A (1848)-Che,T (1582) ICCF 2016 1-0}) (4... e6 5. O-O Be7 6. b3 (6. a4 O-O 7. d3 Nbd7 (7... a5 8. Re1 b5 9. Nbd2 Bb7 10. e3 Qb6 11. Kh1 Nbd7 12. Qe2 bxa4 13. Rxa4 Bb4 14. Rf1 {1-0 (14) Arnold,G (2221)-Akrill,R (2104) ICCF 2016}) 8. b3 Qc7 9. Bb2 Ng4 10. Qd2 Qb6+ 11. d4 Ndf6 12. a5 Qc7 13. Ne5 c5 14. c4 cxd4 15. Bxd4 Bc5 16. Nxg4 Nxg4 17. cxd5 exd5 {Viver Ruiz,J-Bellisario,C (1473) ICCF 2020 1-0 (25)}) 6... Nbd7 7. Bb2 O-O 8. Ne5 h6 9. e3 Qc7 10. c4 b6 11. h4 Bb7 12. g4 c5 13. g5 hxg5 14. hxg5 Ne4 15. d3 Nd6 16. Qh5 {Lever,B-Clark,M ICCF 2009 1-0}) (4... h6 5. d3 Qb6 6. Nc3 Bf5 7. e3 e6 8. Qe2 Nbd7 9. e4 dxe4 10. dxe4 Bh7 11. Nd2 Bb4 12. Na4 { 1-0 (12) Klewe,W (2175)-Diener,R (1946) ICCF 2017}) (4... g6 5. b3 Bg7 6. Bb2 O-O 7. O-O Bg4 8. e3 Bxf3 9. Bxf3 Ne8 10. d4 e6 11. Qd3 Nd6 12. c4 dxc4 13. bxc4 c5 14. Nd2 Nc6 15. Bxc6 bxc6 16. Nb3 {Kaminski,J (1949)-Dahm,W (2062) ICCF 2018 1/2}) 5. b3 (5. Nc3 g6 6. e3 Bg7 7. a4 a5 8. O-O O-O 9. Rb1 Na6 10. b3 Nb4 11. Ne2 Rd8 12. h3 c5 13. d3 d4 14. Ne5 Nfd5 15. Nc4 Qc7 16. e4 Nb6 { Vajas,S (1935)-Krammel,J (1989) ICCF 2019 1-0 (59)}) (5. e3 Bg4 6. d3 (6. b3 g6 7. Bb2 Bg7 8. h3 {Moujan,P (2229)-Wieringen,C (2196) ICCF 2020}) 6... Nbd7 7. Nc3 e5 8. Ne2 e4 9. Nfd4 Bb4+ 10. Kf2 c5 11. Nb3 exd3 12. cxd3 c4 13. dxc4 dxc4 14. Nbd4 Nc5 15. h3 Nd3+ 16. Kg1 Bxe2 {Ainsborough,G (1648)-Smith,A ICCF 2020 0-1 (40)}) 5... g6 (5... Bf5 6. Bb2 e6 7. e3 Nbd7 8. Nc3 h6 (8... Be7 9. Qe2 O-O 10. Nh4 Bg4 11. Qf2 a5 12. h3 Bf5 13. Nxf5 exf5 14. a4 Rfe8 15. O-O-O Ne4 16. Bxe4 fxe4 17. g4 Nc5 18. g5 Qd8 19. Rhg1 b5 20. axb5 {Arnold,G (2237) -Vossenkuhl,J (2396) ICCF 2012 0-1 (49)}) 9. Qe2 a5 (9... Bb4 10. O-O O-O 11. d3 Bh7 12. Kh1 Qa5 13. Nb1 Bd6 14. Ne5 Be7 15. a3 Nxe5 16. Bxe5 Rfe8 17. Bb2 Qc5 18. Rc1 Nd7 19. Nd2 Bf6 20. d4 Qb6 21. c4 {Molina Navarro,J (2046)-Roy Laguens,A (1989) ICCF 2012 1/2 (51)}) 10. Ne5 a4 11. Nxd7 Nxd7 12. e4 a3 13. exf5 axb2 14. Rb1 O-O-O 15. fxe6 fxe6 16. Na4 Qa7 17. Qe3 {Arnold,G (2174) -Senzacqua,F (2159) ICCF 2015 1/2 (29)}) 6. Bb2 Bg7 7. e3 (7. Qc1 O-O 8. Nc3 Bg4 9. Ne5 Nbd7 10. Na4 Qc7 11. h3 Be6 12. Bf3 b6 13. e3 c5 14. Nd3 Bf5 15. Nc3 Bxd3 16. cxd3 Rad8 17. h4 e5 18. Nxd5 Nxd5 {Arnold,G (2251)-Harding,A (2133) ICCF 2012 0-1 (74)}) 7... O-O 8. O-O Bg4 9. Qc1 (9. Qe1 Nbd7 (9... Bxf3 10. Bxf3 Nbd7 11. d4 a5 12. Nd2 a4 13. Qe2 a3 14. Bc3 e6 15. Rac1 Ne8 16. Ba1 f5 17. c4 Nef6 18. c5 Qa7 19. b4 Rfc8 20. Rc3 b6 21. Nb1 {Arnold,G (2224) -Grebenshchikov,A (2338) ICCF 2014 1/2 (40)}) 10. Nh4 Ne8 11. Nc3 Nd6 12. h3 Be6 13. d3 a5 14. g4 f6 15. Na4 Qa7 16. Bd4 c5 17. Bb2 b5 18. Nc3 Nb6 19. e4 d4 20. Ne2 Rae8 {Arnold,G (2210)-Waite,D (2102) ICCF 2015 1/2 (54)}) 9... Nbd7 10. Nc3 (10. a4 a5 11. Bd4 Qc7 12. Ne5 Nxe5 13. Bxe5 Qd7 14. d3 Bh3 15. Qe1 Bxg2 16. Kxg2 Qe6 17. Nd2 Rfd8 18. h3 Ne8 19. Bxg7 Kxg7 20. g4 Nd6 21. Nf3 c5 { Arnold,G (2236)-Barsallo,J (2035) ICCF 2017 1-0 (47)}) 10... Rfe8 11. d4 Bf5 12. a4 (12. Ne5 a5 13. h3 h5 14. Kh2 Qc7 15. a4 e6 16. Qd2 Bf8 {1/2 (16) Arnold,G (2234)-Mamrukov,D (2232) ICCF 2013}) 12... a5 13. Ne5 Nxe5 14. dxe5 ( 14. fxe5 Nd7 15. Qd2 f6 16. exf6 Nxf6 17. Ba3 Rad8 18. Rae1 e5 19. Bc5 Qc7 20. dxe5 Rxe5 21. Bd4 Re7 22. Rf4 Rde8 23. Ref1 Qd6 24. Bxf6 Bxf6 25. Nxd5 cxd5 { Caponi,S-Bellegotti,G ICCF 2013 0-1 (53)}) 14... Nd7 {Bobel,P (2272) -Laffranchise,L (2277) ICCF 2012 1/2 (44)}) (3. d3 c5 (3... Nc6 4. c3 a6 (4... e6 5. Qc2 Bd6 6. g3 O-O 7. Nbd2 b6 8. e4 Ba6 9. e5 Nxe5 10. fxe5 Bc5 11. exf6 Qxf6 12. d4 {1-0 (12) Beijer,B-Pruimboom,J ICCF 2015}) (4... Qd6 5. g3 Bg4 6. Bg2 Bxf3 7. Bxf3 e5 8. Qc2 O-O-O 9. fxe5 Nxe5 10. Bf4 Nxf3+ 11. exf3 Qe6+ 12. Qe2 Qb6 13. Qf2 Re8+ 14. Kf1 Bc5 15. Qc2 Be3 16. d4 {Beijer,B-Rutten,H ICCF 2013 0-1}) 5. Nbd2 Bf5 6. Ne5 Nxe5 7. fxe5 Nd7 8. Nf3 e6 9. Qc2 Be7 10. Bf4 h6 11. e4 dxe4 12. dxe4 Bg4 13. Be2 Bxf3 14. gxf3 Bh4+ 15. Kf1 {Kaminski,J (1949) -Wakeham,M (2048) ICCF 2018 1/2 (49)}) (3... e6 4. c3 (4. e3 Be7 5. b3 O-O 6. Bb2 c5 7. a4 Nc6 8. Be2 a6 9. O-O Bd7 10. Ne5 Ne8 11. Nxc6 Bxc6 12. Nd2 Nf6 13. Bf3 Nd7 14. e4 dxe4 15. Bxe4 Bxe4 {Vogel,P-Hohenberger,K (1888) ICCF 2016 1-0 (25)}) 4... c5 5. Qc2 Nc6 6. e4 Be7 7. Be2 O-O 8. O-O b5 9. e5 Nd7 10. Be3 a5 11. d4 Ba6 12. a4 Qb6 13. axb5 Bxb5 14. Bxb5 Qxb5 15. Na3 {Beijer, B-Schulenberg,H (2156) ICCF 2013 0-1 (51)}) (3... c6 4. c3 Bg4 5. Ne5 Bc8 6. Qc2 Nbd7 7. Nf3 e6 8. e3 Be7 9. Be2 a5 10. O-O O-O 11. Ne5 a4 12. Nd2 Qc7 13. Ndf3 Bd6 14. d4 Ne4 15. Bd3 {Ainsborough,G (1580)-Morera Morera,J ICCF 2018 1/ 2 (45)}) (3... h5 4. Nc3 Nc6 5. e3 a6 6. Be2 g6 7. Ng5 Bg7 8. O-O Bh6 9. Bf3 Qd6 10. e4 dxe4 11. Ncxe4 Bg4 12. Nxd6+ Kd7 13. Ndxf7 Rhf8 14. Nxh6 Bxf3 15. Qxf3 {Alozy,F (1988)-Jacon,M ICCF 2010 1-0}) 4. c3 (4. Nbd2 Nc6 5. e4 g6 6. e5 Nh5 7. g3 Bg7 8. Bg2 O-O 9. O-O f6 10. c4 fxe5 11. fxe5 Bg4 12. Qb3 Qd7 13. cxd5 Nxe5 14. Nxe5 Bxe5 15. Nf3 Rxf3 {Schelberg,M (1705)-Hoeher,C (1790) ICCF 2012 0-1}) 4... Nc6 5. Qc2 Bf5 (5... Bg4 6. Nbd2 Qc7 7. g3 h6 8. Bg2 e6 9. e4 O-O-O 10. O-O Kb8 11. Ne5 Nxe5 12. fxe5 Nd7 13. exd5 exd5 14. Rxf7 Bh5 15. Rf1 Nxe5 16. Nf3 Ng4 17. h3 {Kaminski,J (1949)-Straka,J (2035) ICCF 2018 1/2 (36)}) 6. Nbd2 e6 7. e4 Bg6 8. Ne5 Nxe5 9. fxe5 Nd7 10. Nf3 dxe4 11. dxe4 Qc7 12. Bf4 Qc6 13. Nd2 Be7 14. O-O-O O-O {Kaminski,J (1949)-Gullotto,V (2303) ICCF 2018 0-1 (56)}) (3. b3 g6 (3... c5 4. Bb2 (4. e3 Bg4 (4... g6 5. Bb5+ (5. Bb2 Bg7 6. Be2 (6. Bb5+ Bd7 7. Nc3 (7. Qe2 O-O 8. O-O Bg4 9. h3 Bf5 10. Bd3 e6 11. Nc3 Nc6 12. Na4 Qe7 13. Bxf5 exf5 14. Qb5 Ne4 15. Bxg7 Kxg7 16. d3 Ng3 17. Rfe1 Rac8 18. Nxc5 a5 {Fister,B (2073)-Weglicki,S (2077) ICCF 2018 0-1 (25)}) (7. Bxd7+ Qxd7 8. O-O (8. Ne5 Qc7 9. Qf3 O-O 10. O-O e6 11. Nc3 Nc6 12. Rae1 Rac8 13. d3 Nxe5 14. fxe5 Nd7 15. d4 a6 16. a3 b5 17. Rf2 f6 {Richter,F-Gimenez,E ICCF 2020 1-0 (26)}) 8... Nc6 (8... O-O 9. Nc3 Nc6 10. Ne2 Rac8 11. a3 Rfd8 12. b4 d4 13. exd4 cxd4 14. Bxd4 Nxd4 15. Nfxd4 Nd5 16. c3 Nxf4 17. Nxf4 e5 18. Nxg6 hxg6 19. Nb3 b6 20. Qc2 {Arnold,G (2233)-Rau,J (2144) ICCF 2013 0-1 (43)}) 9. Ne5 Qe6 10. Nxc6 Qxc6 11. Be5 O-O 12. d3 e6 13. Nd2 Rad8 14. Qe2 Nd7 15. Bxg7 Kxg7 16. Nf3 f6 17. e4 dxe4 18. dxe4 e5 {Ackley,P (1931)-Harvey,D (2068) ICCF 2013 1/2 (25)}) 7... O-O 8. Qe2 Bg4 9. h3 Bc8 10. O-O-O a6 11. Bd3 b5 12. Qe1 Nc6 13. g4 Bb7 14. Rf1 Nb4 15. Be2 d4 16. a3 dxc3 17. dxc3 Nfd5 {Rhodes,J (2413)-Galanov,S ICCF 2008 0-1 (44)}) 6... O-O 7. O-O (7. a4 Nc6 8. O-O Qc7 ( 8... d4 9. Na3 Nd5 10. Bc4 dxe3 11. Bxg7 Kxg7 12. Bxd5 Qxd5 13. dxe3 Qe4 14. Qe1 b6 15. Nd2 Qe6 16. Nb5 Nb4 17. Rc1 Bb7 18. Rf2 Qc6 19. Nc4 Rfd8 { Andreassen,E (2316)-Cornejo,W (2503) ICCF 2007 1/2}) 9. Na3 a6 10. Qc1 Bg4 11. Qe1 Rae8 12. d3 d4 13. Qh4 dxe3 14. Nc4 b5 15. axb5 axb5 16. Nxe3 Qxf4 17. Nxg4 Nxg4 18. Bxg7 Kxg7 {Kaminski,J (1943)-Loik,G (1954) ICCF 2020 1/2}) 7... b6 ( 7... Bf5 8. Qc1 (8. d3 Nc6 9. Qe1 Ng4 10. Bxg7 Kxg7 11. Qd2 d4 12. exd4 cxd4 13. Na3 a6 14. Rfe1 Rc8 15. Nh4 Nf6 16. Nxf5+ gxf5 17. Bf3 b5 18. Nb1 Qd6 19. a4 e6 {Korman,J (1861)-Mut Company,G ICCF 2010 0-1 (35)}) 8... Nc6 9. Ne5 Nxe5 (9... Qc7 10. d3 Rad8 11. Bf3 Be6 12. Nd2 Ne8 13. Nxc6 Qxc6 14. c4 b6 15. Bxg7 Nxg7 16. cxd5 Bxd5 17. d4 Bxf3 18. Nxf3 Rc8 19. dxc5 Rfd8 20. Qc3 Nf5 21. Rac1 {Herbin,J (2443)-Balabanov,V (2443) ICCF 2015 1/2 (43)}) 10. Bxe5 Qd7 11. d3 Bg4 12. Bxg4 Nxg4 13. Bxg7 Kxg7 14. h3 Nh6 15. Nd2 Nf5 16. Re1 f6 17. Nf3 d4 18. exd4 Nxd4 19. Nxd4 {Jensen,K (2180)-Gross,M (2174) ICCF 2014 1/2 (35)}) 8. Qe1 Na6 (8... Bb7 9. Qg3 Ne4 10. Qh4 Bxb2 11. Nc3 Bxa1 12. Rxa1 Nxc3 13. dxc3 Kg7 14. g4 h6 15. f5 Qd6 16. Kf2 Nd7 17. Rg1 Nf6 18. Bd3 c4 19. g5 hxg5 20. Qxg5 {Riding,C (1688)-Delgado García,R ICCF 2019 0-1 (30)}) 9. a3 e6 10. d3 { 1-0 (10) Ott,P (1669)-Pirhot,T ICCF 2020}) 5... Bd7 (5... Nbd7 6. Bb2 Bg7 7. O-O O-O 8. Be2 Nb8 9. Ne5 Nfd7 10. d4 Nc6 11. Nc3 cxd4 12. exd4 Nf6 13. Bf3 h5 14. h3 Bf5 15. g4 hxg4 16. hxg4 Be6 17. f5 {Fels,B (2147)-Sciarretta,R (2129) ICCF 2012 1/2 (31)}) 6. Bxd7+ Qxd7 7. Ba3 b6 (7... Qc7 8. c4 Bg7 9. Nc3 O-O 10. O-O Qa5 11. Na4 Nbd7 12. Bb2 dxc4 13. bxc4 a6 14. Qc2 b5 15. Nc3 e6 16. d3 b4 17. Ne2 Nh5 18. e4 Bxb2 19. Qxb2 {Marquardt,G (2199)-Pundak,M (2290) ICCF 2017 1/2 (46)}) 8. Ne5 Qb7 (8... Qe6 9. Nc3 Bg7 10. Nb5 Qc8 11. O-O Nc6 12. c4 O-O 13. d4 Ne4 14. Qd3 Nxe5 15. fxe5 a6 16. Nc3 Nxc3 17. Qxc3 Rd8 18. Bb2 e6 19. Rac1 Qb7 20. cxd5 {Bruce,R (2123)-Offringa,T ICCF 2020 (30)}) 9. O-O Bg7 10. Qf3 O-O 11. Bb2 e6 12. c4 Nbd7 13. Qe2 Rad8 14. d3 Nxe5 15. fxe5 Nd7 16. d4 { Roynet,S (2121)-Baranowski,T (2314) ICCF 2017 0-1 (35)}) (4... Bd7 5. Bb2 g6 6. c4 e6 7. Qc1 b6 8. cxd5 exd5 9. Nc3 Bd6 10. Nxd5 Be7 11. Qc3 Be6 12. Bb5+ Nbd7 13. Qxf6 Bxf6 14. Bxf6 O-O 15. Ne7+ Qxe7 16. Bxe7 {Bruce,R (2100)-Nichol,J (1310) ICCF 2020 1-0 (29)}) (4... Bf5 5. Bb2 e6 6. Bb5+ Nbd7 7. O-O Be7 8. d3 a6 9. Bxd7+ Nxd7 10. Bxg7 Rg8 11. Bb2 h5 12. Nbd2 Qb6 13. Qe1 O-O-O 14. Kh1 f6 15. e4 dxe4 16. dxe4 {Kaminski,J (1912)-Otero Cabrera,E (1918) ICCF 2019 1-0 (37)}) 5. h3 (5. Bb2 e6 6. Bb5+ Nbd7 7. O-O Be7 8. d3 O-O 9. Bxd7 Nxd7 10. Nbd2 b5 11. a4 b4 12. Qe1 Bf6 13. Bxf6 Qxf6 14. Qh4 Bxf3 15. Qxf6 Nxf6 16. Nxf3 { Jensen,K (2180)-Lindegaard,P (1898) ICCF 2007 1/2 (25)}) 5... Bxf3 6. Qxf3 e6 7. Bb2 (7. Bb5+ Nbd7 8. O-O a6 9. Be2 Bd6 10. c4 O-O 11. Nc3 d4 12. exd4 cxd4 13. Ne4 Nxe4 14. Qxe4 Bc5 15. Bd3 Nf6 16. Qxb7 Qd6 17. Qf3 Rab8 18. Kh1 { Alozy,F (1997)-Brien,A ICCF 2010 1-0 (57)}) 7... Nc6 8. g4 (8. Nc3 Be7 9. Bb5 Rc8 10. O-O-O O-O 11. g4 a6 12. Be2 b5 13. Kb1 c4 14. Qg2 cxb3 15. cxb3 Qa5 16. g5 Nd7 17. Bg4 Ba3 18. Bxa3 Qxa3 19. d4 Ne7 {Magallanes,F-Brun,J ICCF 2005 1/2 (32)}) 8... a6 (8... Ne4 9. h4 Qa5 10. Nc3 Nd6 11. a4 a6 12. h5 O-O-O 13. h6 Rg8 14. hxg7 Bxg7 15. Rxh7 d4 16. Rxg7 Rxg7 17. Nb5 Nb4 {Taylor,B (2141) -Demian,V (2199) ICCF 2019 0-1 (49)}) 9. g5 Ne4 10. Nc3 Nxc3 11. Bxc3 Nb4 12. Kd1 Qd7 13. a3 Nc6 14. Kc1 d4 15. Bb2 O-O-O {Nicotera,A-Taksrud,V (2079) ICCF 2011 1-0 (72)}) 4... Nc6 5. e3 Bf5 (5... g6 6. Nc3 (6. Bb5 Bg7 (6... Bd7 7. Nc3 e6 8. O-O Bg7 9. Ne2 a6 10. Bxc6 Bxc6 11. Ne5 Rc8 12. d4 b6 13. c4 Bb7 14. Rc1 O-O 15. Qe1 Nd7 16. Nxd7 Qxd7 17. Qd2 dxc4 18. bxc4 {Valencia Ciordia,J (1550) -Raijmaekers,C (2238) ICCF 2011 0-1}) 7. O-O (7. Ne5 Bd7 8. Bxc6 Bxc6 9. Nxc6 bxc6 10. d3 O-O 11. O-O Qd7 12. Nd2 a5 13. Qe1 a4 14. Nf3 Ra6 15. Be5 Rfa8 16. b4 cxb4 17. Qxb4 c5 18. Qxc5 Rc6 {Nocci,R (2172)-Rawlings,A (2224) ICCF 2005 1-0 (60)}) 7... Bd7 8. d3 O-O 9. Qe2 a6 10. Bxc6 Bxc6 11. Ne5 Qd6 12. Nd2 Nd7 13. Ndf3 (13. Nxd7 Qxd7 14. Bxg7 Kxg7 15. Rae1 e6 16. Qf2 Rae8 17. a4 {Jensen, K (2183)-Velde,M (2128) ICCF 2020 1/2 (28)}) 13... Nxe5 14. Bxe5 Qe6 15. Bxg7 Kxg7 16. Rae1 Qd6 17. Ne5 Rad8 {Moser,M (1914)-Dobre,A ICCF 2014 0-1 (32)}) (6. Ne5 Bg7 7. Nxc6 bxc6 8. Be2 O-O 9. O-O h5 (9... d4 10. Na3 a5 11. Nc4 a4 12. Bd3 Ba6 13. e4 axb3 14. axb3 Bxc4 15. bxc4 e5 16. Rxa8 Qxa8 17. fxe5 Nd7 18. e6 fxe6 19. Rxf8+ Qxf8 20. Bc1 Bh6 21. Qf1 {Vajas,S (1928)-Dellenbach,J (1932) ICCF 2019 1/2}) 10. Bf3 Bg4 11. Qe2 Bxf3 12. Qxf3 Rb8 13. d3 c4 14. dxc4 Ne4 15. Bd4 e6 {Bruce,R (1936)-Straaten,M ICCF 2015 1/2 (63)}) 6... Bg7 7. Bb5 Qd6 (7... Bg4 8. Na4 Rc8 9. Nxc5 Qb6 10. Bxc6+ Qxc6 11. Bd4 Bxf3 12. Qxf3 b6 13. Nd3 Qxc2 14. Nb4 Qe4 15. Ke2 O-O 16. Rac1 Qe6 17. Bxf6 {Pisani,C (2139) -Lujambio,A (2011) ICCF 2016 1-0 (52)}) 8. Na4 b6 9. Be5 Qe6 10. d4 O-O 11. Ng5 Qd7 12. dxc5 Qb7 13. Bxc6 Qxc6 14. cxb6 axb6 15. Nf3 Ba6 16. Nd4 Qb7 17. Nc3 { Lindemann,R (2222)-Tieken,F (2128) ICCF 2015 1/2}) (5... Bd7 6. Nc3 e6 7. Be2 Be7 {0-1 (7) Garner Jr.,C (1602)-Smith,D ICCF 2015}) 6. Bb5 (6. Bxf6 gxf6 7. Nh4 Be6 8. Bb5 Qc7 9. O-O O-O-O 10. Qh5 Kb8 11. Nc3 d4 12. Na4 Nb4 13. Qxc5 Qxc5 14. Nxc5 dxe3 15. Nxe6 fxe6 16. dxe3 Nxc2 17. Rad1 {Manarin,F (1694) -Bucsa,I (2270) ICCF 2009 1/2}) 6... e6 (6... Qb6 7. a4 a6 8. Bxc6+ Qxc6 9. d3 Ng4 10. Qe2 Qe6 11. e4 dxe4 12. Ng5 Qg6 13. dxe4 Bd7 14. Nc3 Rc8 15. O-O-O Nh6 16. Rd2 e5 17. Nf3 Bg4 18. Nd5 {Kaminski,J-Nielsen,P (1778) ICCF 2008 1-0 (31)} ) 7. O-O (7. Ne5 Qb6 8. Nc3 Bd6 9. O-O O-O 10. Bxc6 bxc6 11. Na4 Qb5 12. c4 dxc4 13. Nxc4 Be7 14. Qe2 Rad8 15. e4 Bxe4 16. Bxf6 Bxf6 17. Qxe4 Bd4+ 18. Kh1 Bxa1 {Fels,B (2185)-Baumann,W (2012) ICCF 2013 1-0 (62)}) 7... Bd6 8. d3 O-O 9. Nbd2 Ne7 10. Bxf6 gxf6 11. e4 Bg4 12. Qe1 Bxf4 13. Qh4 Be3+ 14. Kh1 Bxf3 15. Nxf3 {Thommen,J (1865)-Paulin,A ICCF 2010 0-1 (29)}) (3... Bg4 4. e3 a6 (4... e6 5. Bb2 a5 (5... Be7 6. Be2 Nc6 (6... O-O 7. O-O h6 (7... c5 8. Ne5 Bxe2 9. Qxe2 Nfd7 10. d3 Nxe5 11. fxe5 Nc6 12. Nd2 a6 13. Nf3 b5 14. d4 Qb6 15. c3 Rfe8 16. Rae1 a5 17. a3 Rec8 18. Rc1 Rc7 19. e4 {Gultom,P-Malelak,J ICCF 2017 1/2 (35)}) 8. c4 (8. Nc3 Nbd7 9. Nd4 Bxe2 10. Ncxe2 c5 11. Nf3 b5 12. Ng3 Qc7 13. Ne5 Rac8 14. Qf3 Nxe5 15. Bxe5 Qc6 16. f5 Nd7 17. Bb2 e5 18. Rac1 Rfe8 19. Qg4 Nf6 {Owens,J (1300)-Andrus,G ICCF 2012 1/2 (59)}) 8... Nbd7 9. Nc3 c6 10. cxd5 exd5 11. Qc2 Bd6 12. Nd4 Bxe2 13. Ncxe2 Re8 14. Rf3 c5 15. Nf5 Bf8 16. Rg3 g6 17. Nh4 Ne4 18. Rh3 {Carter,M (1778)-Manarin,F (1860) ICCF 2013 0-1 (36)}) 7. O-O O-O 8. Ne5 Bxe2 9. Qxe2 Nxe5 10. Bxe5 c6 11. d3 Qb6 12. Kh1 Nd7 13. Bb2 Bf6 14. Bxf6 Nxf6 15. Nd2 Qa5 16. e4 {Gultom,P-Goswami,D ICCF 2017 1/2 (31)}) 6. h3 Bxf3 7. Qxf3 Ne4 8. Rg1 Nc6 9. Nc3 Bb4 10. O-O-O Bxc3 11. dxc3 O-O 12. a4 Re8 13. Bd3 Nc5 14. e4 Nxe4 15. Bxe4 dxe4 16. Qxe4 {Beurden,M-Juárez de Vena,A (2007) ICCF 2015 1-0 (37)}) 5. Bb2 Nc6 6. Be2 e6 7. O-O Be7 8. Ne5 Bxe2 9. Qxe2 O-O 10. d3 Nxe5 11. Bxe5 c6 12. Nd2 Re8 13. Qf2 Bd6 14. d4 Ng4 15. Qf3 { Rinaldi,M (1676)-Baldini,A (1677) ICCF 2016 1-0 (35)}) (3... h5 4. e3 h4 5. Nc3 Bf5 6. Bd3 Bxd3 7. cxd3 h3 8. g3 a5 9. Bb2 e6 10. O-O c6 11. Qe2 Be7 12. Nd1 a4 13. Nf2 Na6 14. Ng5 Nc5 15. Bd4 {Nicotera,A-Puzone,M (2405) ICCF 2011 1-0 (49)} ) 4. Bb2 Bg7 5. c4 (5. d3 c5 6. Nbd2 O-O 7. e4 Nc6 8. Bxf6 Bxf6 9. e5 Bg7 10. Be2 f6 11. exf6 Bxf6 12. Rc1 Bc3 13. O-O Rxf4 14. Kh1 Qd6 15. g3 Rf8 16. Rf2 Rf6 {Dagklis,D-Olivas,C ICCF 2014 0-1 (27)}) 5... dxc4 6. bxc4 O-O 7. g3 b6 8. Bg2 Bb7 9. O-O Na6 10. d3 c5 11. Nc3 e6 12. a3 Qe7 13. e4 Rfd8 14. Qe2 Nc7 { Sonnenfeld,W (1904)-MacMillen,A (1711) ICCF 2017 1-0 (30)}) (3. c3 c6 (3... Bg4 4. e3 e6 5. Be2 Be7 6. d3 O-O 7. O-O Nbd7 8. Qc2 c5 9. Ne5 Bxe2 10. Qxe2 Nxe5 11. fxe5 Nd7 12. d4 c4 13. e4 b5 14. exd5 exd5 15. Qg4 {Mayes,F (1546)-Carmo,L (1635) ICCF 2014 1-0 (45)}) (3... Bf5 4. d3 Nbd7 5. g3 e6 6. Bg2 Bc5 7. Na3 O-O 8. Nc2 h6 9. Be3 Bd6 10. O-O Re8 11. a4 a5 12. Bd2 Bg6 13. Nh4 Bh7 14. Kh1 c6 15. Ne3 {Knöppel,B (2057)-Hohlbein,M (2172) ICCF 2017 0-1 (52)}) 4. e3 Qc7 5. Be2 Nbd7 6. O-O e5 7. d4 exd4 8. cxd4 Ne4 9. Nc3 Ndf6 10. Qc2 Bd6 11. Bd3 Bf5 12. Bd2 O-O 13. Ne5 Nxd2 14. Qxd2 Bxd3 {Andreassen,E (2326)-Taksrud,V (2157) ICCF 2008 1/2 (37)}) (3. c4 Nc6 (3... dxc4 4. e3 Be6 5. Nc3 Nbd7 6. Ng5 Bg4 7. Qc2 Nb6 8. b3 h6 9. Nge4 {1-0 (9) Fagerbekk,E-Peardon,D (1802) ICCF 2007}) ( 3... d4 4. b4 e6 5. Bb2 Bxb4 6. Nxd4 O-O 7. Nf3 Ng4 8. Nc3 Nc6 9. e3 e5 10. h3 Bxc3 11. Bxc3 Nf6 12. fxe5 Ne4 13. Qb3 Bf5 14. d4 a5 15. g4 {Fagerbekk, E-Brusila,H (2237) ICCF 2007 1/2 (29)}) 4. cxd5 Nxd5 5. e3 Bf5 6. d3 e5 7. e4 Bb4+ 8. Kf2 Bc5+ 9. Ke1 exf4 10. exf5 O-O 11. Qb3 Re8+ 12. Kd1 Ne3+ 13. Bxe3 fxe3 14. Nc3 Nd4 {Fagerbekk,E (2052)-Vuillemin,G (2093) ICCF 2007 1-0 (30)}) ( 3. Nd4 c5 4. Nf3 Nc6 5. Nc3 d4 6. Na4 e6 7. d3 b5 8. Ne5 Nxe5 9. fxe5 Nd7 10. b3 bxa4 11. Bf4 Qc7 12. Rb1 Nxe5 13. g3 Bb7 14. Rg1 Bd6 {Heineccius,A (1712) -Lumsdon,A (1740) ICCF 2014 0-1 (25)}) (3. b4 e6 4. e3 Bxb4 5. Be2 Be7 6. c4 c5 7. Bb2 Nc6 8. O-O O-O 9. Na3 Ne4 10. Rb1 a6 11. d3 Nd6 12. d4 Nf5 13. Nc2 dxc4 14. Bxc4 cxd4 {Fagerbekk,E (2257)-Singeisen,H (2088) ICCF 2009 1/2 (35)}) 3... g6 (3... e6 4. b3 (4. Be2 c5 (4... b6 5. Ne5 (5. O-O Bb7 6. a3 (6. Qe1 Bd6 7. d3 Na6 8. Bd2 c5 9. Qg3 O-O 10. Na3 Nb4 11. Bxb4 cxb4 12. Nb5 Bc5 13. Nbd4 Rc8 14. Rfc1 a5 15. Kf2 Ba6 16. Rab1 b5 17. Re1 Qb6 {Bito,L (2000)-Bourgoin,C (1873) ICCF 2010 1-0 (51)}) 6... Be7 7. c4 O-O 8. Nc3 c5 9. cxd5 exd5 10. d4 a6 11. Qc2 Re8 12. Ne5 Nc6 13. dxc5 bxc5 14. Bf3 Bf8 15. Nxc6 Bxc6 16. Rd1 g6 { Koppel,I (1488)-Smith,R (1473) ICCF 2018 0-1 (57)}) 5... Bd6 6. O-O Bxe5 7. fxe5 Ne4 8. d3 Nc5 9. c4 Qg5 10. Nc3 Bb7 11. Bf3 c6 12. d4 Nca6 13. e4 Qd8 { 0-1 (13) Özoguz,H-Zaghi,M ICCF 2008}) (4... Bd6 5. O-O O-O 6. c4 (6. d3 Nc6 7. d4 Ne7 8. c4 c5 9. Nc3 cxd4 10. Nxd4 dxc4 11. Bxc4 Bd7 12. Qb3 Nc6 13. Nxc6 Bxc6 14. Rd1 Qe7 15. Bb5 e5 16. Bxc6 bxc6 17. f5 e4 {Humphreys,S (2072) -Schwenk,H (2120) ICCF 2012 0-1}) 6... c5 7. Na3 a6 8. b3 Nc6 9. Bb2 b6 10. Nc2 Bb7 11. Ne5 Qe7 12. Qe1 Rfd8 13. d3 b5 14. Qg3 Rab8 15. Rab1 b4 16. Rbe1 { Fister,B (2204)-Soulas,P (2172) ICCF 2007 1-0 (35)}) (4... Nc6 5. O-O Bd6 6. d4 (6. c4 d4 7. b3 Bc5 8. Ne1 O-O 9. Nd3 Qd6 10. Bf3 Re8 11. Bb2 dxe3 12. Nxc5 Qxc5 13. d4 Qf5 14. Qe2 Bd7 15. Na3 Nb4 16. Bxb7 Rab8 17. Bf3 Qxf4 {Bobel,P (2287)-Jaeger,F (1919) ICCF 2014 1-0 (51)}) 6... O-O 7. c4 Bd7 8. Nc3 dxc4 9. Bxc4 Na5 10. Bd3 c5 11. Qe2 Qe7 12. Bd2 cxd4 13. exd4 Rac8 14. Ne4 Nxe4 15. Qxe4 f5 16. Qe2 {Pallister,S (1880)-Sutcliffe,P ICCF 2016 1-0 (29)}) (4... Be7 5. d3 (5. O-O O-O 6. d3 c5 7. Qe1 Nc6 8. b3 Ne8 9. Bb2 b6 10. Qg3 Bb7 11. Nbd2 g6 12. e4 Rc8 13. f5 exf5 14. exf5 Ng7 15. f6 Bxf6 16. Bxf6 Qxf6 {Ward,B (1607) -Robles,N ICCF 2018 0-1}) 5... b5 6. O-O c5 7. Nbd2 O-O 8. Ne5 Bb7 9. b3 Nc6 10. Ndf3 Nxe5 11. Nxe5 Nd7 12. Nxd7 Qxd7 13. Bb2 a5 14. a4 bxa4 15. Rxa4 Bc6 16. Ra1 {Ott,P (2152)-Van Damme,L (2185) ICCF 2015 1/2 (38)}) 5. d4 (5. d3 Nc6 (5... Bd6 6. Nc3 a6 7. O-O O-O 8. e4 dxe4 9. dxe4 Bc7 10. e5 Nd5 11. Ne4 b6 12. c4 Ne7 13. Qa4 Bb7 14. Rd1 Qc8 15. Nd6 Bxd6 16. exd6 Bc6 17. Qb3 {Domenche Redondo,F (1893)-Lucena Cifré,R (1691) ICCF 2014 1-0 (32)}) 6. O-O (6. Bd2 Be7 7. O-O O-O 8. Kh1 b6 9. c4 dxc4 10. dxc4 Ne4 11. Qc2 Nxd2 12. Rd1 Nb4 13. Qc1 Qc7 14. Nbxd2 Bb7 {Cook,D-Morton,P (1574) ICCF 2018 1/2 (40)}) 6... Bd6 (6... Be7 7. Qe1 b5 8. b3 O-O 9. h3 Nb4 10. Bd1 a5 11. a3 {1/2 (11) Castillo, R-Owczarzak,M ICCF 2017}) (6... d4 7. e4 Nd7 8. Qe1 Be7 9. a4 b6 10. Nbd2 Nb4 11. Bd1 Qc7 12. Nc4 Ba6 13. Na3 O-O 14. Bd2 e5 15. Nh4 c4 16. Nf5 Bf6 17. Bxb4 Nc5 18. Nxc4 {Recasens Sánchez,J (2029)-Fiesel,H ICCF 2007 1-0}) 7. Nc3 (7. Qe1 O-O 8. Nbd2 Qc7 9. b3 e5 10. Bb2 Re8 11. fxe5 Nxe5 12. Nxe5 Bxe5 13. Bxe5 Qxe5 14. e4 dxe4 15. dxe4 Nxe4 16. Nxe4 Qxe4 17. Bc4 Qd4+ 18. Kh1 Rxe1 {Ward,B (1670)-Wood,B (1824) ICCF 2015 0-1 (27)}) 7... O-O 8. e4 Be7 (8... Bc7 9. e5 Nd7 10. Nb5 Bb8 11. c4 a6 12. Nc3 b5 13. Rf2 Bb7 14. cxd5 exd5 15. Bd2 Ba7 16. Be1 Re8 {Darias Mateos,A (1842)-Durán Vallverdú,J (2106) ICCF 2012 0-1 (34)}) 9. a4 (9. Kh1 b6 10. e5 Ng4 11. h3 Nh6 12. g4 f6 13. exf6 Bxf6 14. g5 Bxc3 15. gxh6 Bf6 16. hxg7 Bxg7 17. Rg1 e5 18. fxe5 Qd7 19. Rg4 Qc7 20. Rg5 {Bruce,R (1960)-Sikorski,R ICCF 2017 1/2 (41)}) 9... b6 10. e5 Ng4 11. Qe1 Nb4 12. Bd1 Nh6 13. Ne2 a5 14. Ng3 Ba6 15. Ng5 Rc8 16. Bd2 Nc6 {Ott,P (2152)-Lefebvre,A (2263) ICCF 2015 0-1 (60)}) (5. O-O Bd6 (5... Be7 6. a4 O-O 7. b3 Nc6 8. Bb2 Ng4 9. Nc3 b6 {0-1 (9) Brown,H (1941)-Mikhailov,V (2330) ICCF 2017}) 6. Nc3 O-O 7. b3 a6 8. Bb2 b5 9. d3 Bb7 10. Qe1 d4 11. exd4 cxd4 12. Ne4 Nxe4 13. dxe4 Bxf4 14. Bxd4 Bxe4 15. Bc5 Bd6 16. Bxd6 Qxd6 {Abbou,J-Yilmazer,V ICCF 2005 0-1 (28)}) 5... Be7 6. O-O O-O 7. c3 b6 8. Ne5 Bb7 9. Nd2 Qc7 10. Rb1 Nc6 11. b3 cxd4 12. exd4 Ne4 13. Nxe4 dxe4 14. Bb2 Bd6 15. Qc1 Rac8 {Gultom,P-Agrawal,R (1956) ICCF 2017 1-0}) (4. Nc3 a6 (4... Nc6 5. d4 Bb4 6. Bd2 O-O 7. Bd3 Ne4 8. Bxe4 dxe4 9. Nxe4 f5 10. Bxb4 Nxb4 11. Nc3 b6 12. a3 Nd5 13. Qd2 Bb7 14. O-O-O a5 15. h4 Ba6 16. Ne5 {Harris,S (1533)-Liles,C (1511) ICCF 2018 1-0 (46)}) 5. b3 Bd6 (5... c5 6. Bb2 Bd6 7. g3 Nc6 8. Bg2 O-O 9. O-O b5 10. e4 Be7 11. e5 Nd7 12. Qe2 Qb6 13. Kh1 h6 14. Nd1 a5 15. a4 bxa4 16. Rxa4 Bb7 17. f5 {Siigur,J (2431)-Pinchon,F (2310) ICCF 2015 1/2 (34)}) 6. Bb2 O-O 7. Bd3 Nc6 8. Ne2 Re8 9. Ne5 Bxe5 10. fxe5 Nd7 11. Ng1 Ndxe5 12. Bxh7+ Kxh7 13. Qh5+ Kg8 14. Bxe5 Nxe5 15. Qxe5 f6 {Fagerbekk,E (2274)-Gach,A (2305) ICCF 2009 1/2 (47)}) (4. Bd3 c5 5. b3 Nbd7 6. O-O Be7 7. Bb2 O-O 8. c4 b6 9. Qc2 Bb7 10. Nc3 g6 11. cxd5 Nxd5 12. Nxd5 exd5 13. Rac1 Bf6 14. Bb5 Bxb2 15. Qxb2 a6 {Bassanini,M (1858) -Secondi,A (1596) ICCF 2013 1-0 (29)}) (4. c4 c5 (4... Bd6 5. Na3 (5. d4 O-O 6. Bd3 dxc4 7. Bxc4 c5 8. b3 cxd4 9. exd4 b5 10. Bxb5 Qa5+ 11. Bd2 Qxb5 12. Nc3 Qa6 13. Ne2 Bb7 14. O-O Nc6 15. Ng3 Rfd8 16. Be3 Rac8 {Grønbech,T (1951) -Munaev,Z (2099) ICCF 2016 0-1 (25)}) 5... c6 6. b3 Nbd7 7. Bb2 Qe7 8. Qc1 O-O 9. Be2 dxc4 10. Nxc4 Bc7 11. Nfe5 Nxe5 12. fxe5 Ne8 13. O-O b5 14. Ba3 b4 15. Bb2 Bb7 16. d4 {Bruce,R (2007)-Ryan,R (1712) ICCF 2018 1-0}) 5. cxd5 (5. Ng5 h6 6. Nf3 Nc6 7. d3 dxc4 8. Ne5 Nxe5 9. fxe5 Nd5 10. dxc4 Nb4 11. g3 Qxd1+ 12. Kxd1 b6 13. Nc3 Bb7 14. Rg1 Bf3+ 15. Ne2 Rd8+ {Chugg,M (1228)-Matos,V (1373) ICCF 2020 0-1 (33)}) (5. Be2 Nc6 6. O-O Bd6 7. d4 cxd4 8. Nxd4 O-O 9. Nc3 Qe7 10. cxd5 exd5 11. Bf3 Bc5 12. Nxd5 Nxd5 13. Bxd5 Nxd4 14. exd4 Rd8 15. dxc5 Qxc5+ 16. Be3 Qxe3+ {Harangus,E (1981)-Sallwey,R (1914) ICCF 2008 1/2 (49)}) 5... exd5 6. Bb5+ Bd7 7. Bxd7+ Nbxd7 8. d3 Be7 9. Nc3 Qb6 10. e4 dxe4 11. dxe4 c4 12. Qe2 O-O 13. e5 Rfe8 14. Kf1 Bc5 15. Qxc4 Ng4 {Müller,S (2005)-Nittel,C (1943) ICCF 2015 1-0 (53)}) (4. Bb5+ Bd7 5. Qe2 Be7 6. O-O O-O 7. b3 c5 8. Ne5 a6 9. Nxd7 Nbxd7 10. Bd3 b5 11. c4 bxc4 12. bxc4 Qa5 13. Bb2 Rab8 14. Bc3 Qb6 15. Na3 d4 {McLaughlin,E (1681)-Catania,D (1720) ICCF 2013 0-1 (43)}) 4... c5 ( 4... Be7 5. Bb2 (5. Qe2 Ne4 6. Bb2 O-O 7. g3 c5 8. Bg2 b5 9. d3 Nd6 10. O-O Nc6 11. Nbd2 c4 12. Ne5 Nxe5 13. fxe5 Nf5 14. dxc4 bxc4 15. Nxc4 Bc5 16. Rxf5 exf5 {Roynet,S (2121)-Rumyantsev,V (2134) ICCF 2017 1/2 (58)}) 5... O-O (5... a5 6. a3 O-O 7. c4 c5 {0-1 (7) Roynet,S (2150)-Taksrud,V (2134) ICCF 2019}) (5... b6 6. Bb5+ c6 7. Bd3 O-O 8. Ne5 Nfd7 9. Qh5 f5 10. Nf3 Na6 11. Be2 Nb4 12. Na3 Bf6 13. Ng5 h6 14. Nxe6 Qe7 15. Nd4 Nc5 16. O-O Bd7 17. c3 {Engelen,J (2339) -Chazalette,J (2311) ICCF 2015 1/2}) 6. Be2 (6. d4 c5 7. Bd3 Nc6 (7... cxd4 8. exd4 Nc6 9. c3 Qc7 10. g3 Ne4 11. b4 f5 12. O-O a6 13. Nbd2 h6 14. Nb3 g5 15. Ne5 Nxe5 16. fxe5 b6 17. Qh5 Kg7 18. c4 Bd7 19. cxd5 {Bruce,R (2007)-Bradney,R (1907) ICCF 2018 1/2 (44)}) 8. O-O Qb6 9. Ne5 cxd4 10. Nxc6 bxc6 11. exd4 c5 12. dxc5 Bxc5+ 13. Kh1 Ne4 14. Bxe4 dxe4 15. Nc3 Qc6 16. Na4 Be7 17. Qe2 Rd8 { Renard,S (1926)-Kretinin,E ICCF 2015 1/2 (25)}) (6. Bd3 c5 (6... Nbd7 7. O-O Nc5 (7... c6 8. Nc3 Ng4 9. Na4 Bh4 10. h3 Ngf6 11. Nxh4 c5 12. g4 Ne4 13. Qe1 Ndf6 14. Bxf6 Nxf6 15. Nxc5 b6 16. Na4 Bd7 17. Nc3 Bc6 18. Nf3 Ne4 19. g5 { Vercauteren,N (1724)-Hardwick,M (1161) ICCF 2019 1-0 (37)}) 8. Be2 a5 9. Ne5 Bd7 10. d3 c6 11. Nd2 Bd6 12. Qe1 Re8 13. Ndf3 Rc8 14. Qg3 Nh5 15. Qh3 Nf6 16. Ng5 {1-0 (16) Menten,R (1991)-Achermann,J (1812) ICCF 2006}) 7. O-O Nc6 8. Ne5 Nd7 9. Nxc6 bxc6 10. c4 Bf6 11. Nc3 d4 12. Ne4 dxe3 13. Nxf6+ Nxf6 14. dxe3 Qe7 15. Qf3 Bb7 16. Qh3 Rad8 17. Bxf6 {1-0 (17) Roynet,S (1991)-Woodhouse,S (1728) ICCF 2016}) (6. a4 Bd7 7. Ba3 Bxa3 8. Nxa3 a6 9. Be2 Nc6 10. O-O Ne7 11. h3 c5 12. Ne5 Ne4 13. Bf3 Ng3 14. Re1 Nef5 15. c4 Re8 16. cxd5 exd5 17. Bxd5 Be6 { Di Pietro,R (1635)-Secondi,A (1536) ICCF 2014 1/2 (76)}) 6... c5 (6... b6 7. O-O (7. d3 c5 8. Qc1 Nc6 9. c4 d4 10. exd4 cxd4 11. O-O Ng4 12. Na3 Ne3 13. Nxd4 Nxd4 14. Qxe3 Bc5 15. Kh1 Bb7 16. Qe5 Re8 17. Bh5 f6 18. Qe1 Bxa3 { Bruce,R (1971)-Ramsey,T (2048) ICCF 2017 1-0 (39)}) 7... Bb7 8. a4 c5 9. Ne5 ( 9. Na3 Ne4 10. c4 Nc6 11. cxd5 exd5 12. Ne5 Nxe5 13. fxe5 a6 14. Bg4 Qc7 15. Rc1 Bc6 16. Qc2 Rab8 17. Nb1 b5 18. d3 Ng5 19. axb5 axb5 20. Nc3 Qb7 {Bito,L (2078)-Cacko,J (2169) ICCF 2013 1/2 (57)}) 9... Nfd7 10. d4 Nxe5 11. dxe5 Nc6 12. Nd2 Qc7 13. Rf3 g6 14. Rh3 Rad8 15. Nf3 Rfe8 16. Qd2 Bf8 17. Rd1 Rc8 18. Qe1 {Zhdanenia,K (2299)-Saevich,Y (1911) ICCF 2017 1-0 (35)}) (6... Nc6 7. O-O Ne4 (7... b6 8. Bxf6 (8. c4 Bb7 9. cxd5 exd5 10. d4 Ne4 11. Nbd2 Nxd2 12. Qxd2 Bb4 13. Qc2 Re8 14. Ng5 g6 15. Bb5 h6 16. Nf3 Rxe3 17. Bxc6 Bxc6 18. Qxc6 Bd6 19. Ne5 Bxe5 {Caliguire,J (2097)-Buganza,N ICCF 2014 1-0 (27)}) 8... Bxf6 9. d4 Bb7 10. Nbd2 g6 11. Ne5 Ne7 12. g4 Bxe5 13. fxe5 c5 14. Rf6 Kh8 15. g5 Ng8 16. Qe1 Nxf6 17. gxf6 Rg8 18. Qh4 Qf8 19. Nf3 {Enoksson,B (1458)-Burton,S (1651) ICCF 2018 1/2 (46)}) 8. d3 Nd6 9. Nbd2 Nf5 10. Kf2 e5 11. Nxe5 Nxe5 12. fxe5 Bg5 13. Bd4 Bxe3+ 14. Bxe3 Qh4+ 15. Kf3 Nxe3 16. Kxe3 d4+ {0-1 (16) Gultom, P-Malelak,J ICCF 2017}) 7. O-O Nc6 (7... b6 8. c4 (8. Qe1 Bb7 9. Qg3 Nc6 10. a4 d4 11. Na3 Ne4 12. Qh3 Bf6 13. Rad1 Rc8 14. Bc4 g6 15. exd4 cxd4 16. Rfe1 Nc5 17. Rc1 a6 18. Bf1 d3 19. Ng5 h5 {Moser,M (1914)-Peet,W ICCF 2014 0-1 (57)}) ( 8. d4 Bb7 9. Ne5 cxd4 10. exd4 Nc6 11. Nd2 Ne4 12. Nxc6 Bxc6 13. Nxe4 dxe4 14. c4 f5 15. Qd2 Qc7 16. Qe3 h6 17. Kh1 Bb7 18. Rad1 Rad8 19. g3 g5 {Bajt,D (2384) -Hildebrand,G (2372) ICCF 2020 1/2 (34)}) (8. Ne5 Bb7 9. d3 Nfd7 10. Nd2 Nxe5 11. Bxe5 (11. fxe5 Bg5 12. Rf3 Nc6 13. d4 f6 14. exf6 Bxf6 15. Rh3 cxd4 16. Bd3 h6 17. exd4 Nxd4 18. Ba3 e5 19. Bxf8 Qxf8 20. Kh1 Rd8 {Gultom,P-Benjazia,B (2043) ICCF 2017 0-1 (37)}) 11... Nc6 12. Bb2 Bf6 13. Qc1 Bxb2 14. Qxb2 e5 15. fxe5 Qg5 16. Rf3 Rae8 17. d4 cxd4 18. Nf1 Rxe5 19. Rg3 Qe7 {Gultom,P (1758) -Pranata,B ICCF 2018 0-1}) (8. Na3 Bb7 9. c4 a6 10. Nc2 Nc6 11. Qe1 a5 12. a4 Ne4 13. d3 Nd6 14. cxd5 exd5 15. Ne5 Nb4 16. Nxb4 axb4 17. Bg4 Kh8 18. Rf3 Bh4 19. Qe2 f6 {Kögeler,A (2125)-Tieken,F (2200) ICCF 2016 1/2 (32)}) 8... Bb7 ( 8... Nc6 9. Ne5 Bb7 10. Bf3 (10. Na3 a6 (10... Nd7 11. Nxc6 Bxc6 12. Bf3 Qc8 13. Rc1 Qb7 14. d3 Bf6 15. cxd5 exd5 16. Qd2 Bxb2 17. Qxb2 Rfe8 18. Rfe1 a5 19. d4 Rac8 20. Qd2 cxd4 21. Qxd4 Nf6 22. Nb1 {Fracassa,M-Lumsdon,A (1834) ICCF 2015 1/2 (31)}) (10... Ne4 11. d3 Nd6 12. Bg4 a5 13. Qd2 a4 14. Qe2 g6 15. Rfe1 Nxe5 16. fxe5 Ne8 17. Bf3 Bc6 18. Rf1 {Pallás Muiño,J (2318)-Ribés Colom,J (2248) ICCF 2018 0-1 (66)}) 11. d3 (11. Bf3 Nxe5 12. fxe5 Ne4 13. d3 Ng5 14. Bh5 dxc4 15. h4 cxd3 16. hxg5 Bxg5 17. Qd2 Bh4 18. Rf4 b5 19. Bf3 Ra7 20. Bxb7 Rxb7 21. Rd1 Qg5 22. Rf3 Rd7 {Kögeler,A (2125)-Jarecki,M (2174) ICCF 2016 1/2 (31)}) 11... Rc8 12. Bf3 Nxe5 13. fxe5 Nd7 14. cxd5 Bxd5 15. Bxd5 exd5 16. Qf3 Nb8 17. Qg4 Rc6 18. d4 c4 19. bxc4 dxc4 20. Nb1 b5 21. Qe4 Rg6 {Perini,G (2253) -Trzcinski,I (2195) ICCF 2013 1/2 (69)}) 10... Nxe5 11. Bxe5 Qd7 12. d3 Rad8 13. Qe2 Ne8 14. Nd2 Nd6 15. Rad1 d4 16. Bxd6 Bxd6 17. Bxb7 dxe3 18. Qxe3 Qxb7 19. Nf3 Qc7 20. g3 {Bowen,F (1979)-Granz,T (2039) ICCF 2016 0-1 (40)}) 9. Ne5 ( 9. cxd5 exd5 10. Ne5 Nc6 11. Na3 Nxe5 12. fxe5 Ne4 13. Nc2 Ng5 14. Bg4 g6 15. Rc1 Ne6 16. Rf2 h5 17. Be2 Bh4 18. g3 Bg5 19. Bf1 d4 20. h4 Be7 {Bito,L (2115) -Vodicka,M (2185) ICCF 2016 1/2 (47)}) 9... Nfd7 (9... Nbd7 10. Nc3 Nxe5 11. fxe5 Ne4 12. Nxe4 dxe4 13. Qc2 Qc7 14. Bc3 Rad8 15. Rf4 Bg5 16. Rf2 Bh4 17. g3 Bg5 18. Qb2 Be7 19. Raf1 Bc6 20. a4 a6 21. Bh5 {Roynet,S (2089)-McNeil,M (2037) ICCF 2017 1-0 (43)}) 10. Nf3 (10. Nd3 Nc6 11. Nc3 d4 12. Ne4 a5 13. Bf3 a4 14. Rb1 Qc7 15. Qe2 Na5 16. exd4 cxd4 17. Bxd4 axb3 18. axb3 Nxb3 19. Rxb3 Qxc4 20. Bxg7 Kxg7 21. Rc3 Qd4+ {Schmidt,T (2086)-Lumsdon,A (2112) ICCF 2018 1/2 (59)}) 10... Nc6 11. cxd5 exd5 12. d4 Nf6 13. Ne5 Rc8 14. Nd2 cxd4 15. Nxc6 Rxc6 16. Bxd4 Bc5 17. Nf3 Qe7 18. Ne5 Rc7 19. Bf3 {Kazmierczuk,Z (2164)-Juras,Z (2229) ICCF 2016 0-1 (56)}) (7... a6 8. c4 (8. Ne5 Nbd7 9. d3 Nxe5 10. fxe5 Nd7 11. Nd2 Bg5 12. Rf3 b5 13. d4 cxd4 14. exd4 f6 15. exf6 Nxf6 16. h3 Bb7 17. Bd3 { Gultom,P-Wagle,D ICCF 2013 0-1}) 8... Nbd7 9. Ne5 Qc7 10. Bd3 b6 11. Qf3 Bb7 12. Qh3 b5 13. Nxd7 Qxd7 14. Bxf6 g6 15. Bxe7 Qxe7 16. cxb5 axb5 17. Bxb5 Qf6 18. Nc3 d4 19. Ne2 {Rinaldi,M (1676)-Scavo,S (1521) ICCF 2016 1-0 (36)}) 8. Ne5 Nxe5 (8... Qc7 9. d3 (9. Qe1 Nb4 10. Na3 a6 11. Rf3 b5 12. Rh3 h6 13. g4 Nh7 14. g5 hxg5 15. Qg3 d4 16. c3 Nd5 17. c4 bxc4 18. Naxc4 Bf6 19. Rf1 gxf4 20. exf4 {Snijders,J (2081)-Ozsayin,A ICCF 2015 1-0 (43)}) (9. Nxc6 Qxc6 10. d3 b6 11. Nd2 Ne8 12. Qe1 Nd6 13. e4 Bb7 14. Bf3 Qd7 15. a4 d4 16. Rd1 Rad8 17. c3 dxc3 18. Bxc3 b5 19. Qg3 g6 20. Bg4 f5 {Bito,L (2078)-Baciak,M (1956) ICCF 2013 1/2 (51)}) 9... Nd7 10. Nxc6 Qxc6 11. c4 b5 12. cxb5 Qxb5 13. Rf3 Bb7 14. Rg3 Bf6 15. Bxf6 Nxf6 16. Qc2 Rac8 17. Qb2 Ne8 18. Nd2 f6 19. Bg4 Qb6 20. Qc3 { Bruce,R (1936)-Winter,M (1940) ICCF 2015 1/2 (69)}) (8... Nd7 9. Nxc6 bxc6 10. d3 Bf6 11. Bxf6 Qxf6 12. Nd2 Qc3 13. e4 Nf6 14. e5 Ne8 15. Nf3 f6 16. Qd2 Qxd2 17. Nxd2 Nc7 18. c4 Bd7 19. Rac1 d4 20. Ne4 {Nørholm Jensen,L-Pajukari,S (1631) ICCF 2010 1-0 (50)}) 9. fxe5 Nd7 10. c4 f6 (10... Nb8 11. Na3 b6 12. d4 Nc6 13. Rf2 Bg5 14. cxd5 exd5 15. Nc2 a5 16. Qd2 Be6 17. Bb5 Nb4 18. Ne1 Bd7 19. Be2 a4 20. g3 axb3 21. axb3 Bh3 22. Rxa8 {Arnold,G (2210)-Cordes,T (2128) ICCF 2015 1-0 (28)}) (10... dxc4 11. bxc4 Bg5 12. Na3 a6 13. Nc2 Nb6 14. Rb1 Bd7 15. Ba3 Qc7 16. Ne1 Ba4 17. Qc1 Nd7 18. Nf3 Bh6 19. Qc3 Bc6 20. Kh1 {Flor Trejo,R (2184)-Lanin,B (2004) ICCF 2017 1/2 (56)}) 11. exf6 Nxf6 12. Qe1 Qc7 13. Qh4 Bd7 14. Bd3 h6 15. Nc3 Qd6 16. Rad1 {Andreassen,E (2314)-Andersen,R (2239) ICCF 2006 1/2}) (4... Bd6 5. Bb2 (5. Bd3 Nbd7 6. Bb2 c6 7. c4 Qe7 8. Ne5 h5 9. Qf3 Rg8 10. Bc2 Ng4 11. Nxg4 hxg4 12. Qxg4 dxc4 13. O-O cxb3 14. axb3 e5 15. Nc3 Nf6 16. Qg5 a6 {Fagerbekk,E (2052)-Taksrud,V (2157) ICCF 2008 1-0 (33)}) 5... O-O (5... Qe7 6. Be2 O-O 7. O-O c5 (7... Nbd7 8. c4 (8. Ne5 b6 9. d3 Bb7 10. Nd2 Ne8 11. Qe1 f6 12. Nxd7 Qxd7 13. Qh4 Bb4 14. Nf3 Nd6 15. g4 c5 16. a3 Ba5 17. d4 Ne4 18. dxc5 bxc5 19. g5 Bc3 {Nørholm Jensen,L-Taksrud,V (2099) ICCF 2011 0-1 (32)}) 8... e5 9. c5 Bxc5 10. fxe5 Ne4 11. d4 Bb4 12. a3 Ba5 13. b4 Bb6 14. a4 a5 15. b5 Qe6 16. Nbd2 Qh6 17. Ra3 c6 18. Nxe4 dxe4 19. Ne1 { Andreassen,E (2326)-Øvergaard,J (2180) ICCF 2008 1-0 (45)}) 8. Qe1 Nc6 9. Qg3 Rd8 10. Na3 a6 11. Ne5 Bd7 12. c4 Be8 13. d3 Nb4 14. Rfc1 d4 15. Nc2 Nxc2 16. Rxc2 dxe3 17. Rf1 {Heß,H (2335)-Ryska,J (2204) ICCF 2009 1-0 (51)}) 6. Be2 (6. Bd3 Nbd7 (6... c5 7. O-O (7. Ne5 b6 (7... Nc6 8. O-O Nb4 (8... Bxe5 9. fxe5 Nd7 10. Qg4 h6 11. Qf4 Qg5 12. h4 Qxf4 13. exf4 Nb4 14. Rf3 b5 15. Na3 Nxd3 16. cxd3 a6 17. d4 {Cayolla Ribeiro,D-Delgado,L ICCF 2010 1-0 (68)}) 9. Be2 Qe7 10. c4 Nc6 11. d3 d4 12. Nxc6 bxc6 13. exd4 cxd4 14. Bxd4 e5 15. Bc3 e4 16. d4 Bf5 17. Bb2 Rfe8 18. Nc3 Qc7 19. g4 {Quigley,D (2100)-Taylor,B (2098) ICCF 2014 1/ 2 (65)}) 8. O-O Bb7 9. Rf3 (9. Qf3 Nc6 10. Na3 Nb4 11. Nb5 Be7 12. g4 Ne4 13. Qe2 f6 14. Nf3 Qd7 {0-1 (14) Stephens,D-Carr,J ICCF 2013}) 9... d4 10. Rh3 Nbd7 11. exd4 cxd4 12. Qe2 Bc5 13. Na3 h6 14. Rf1 a6 15. Kh1 b5 16. c4 Nb6 17. Rg3 bxc4 18. Naxc4 Nxc4 {Heß,H (2358)-Deidun,J (2257) ICCF 2007 1/2 (37)}) 7... Nc6 8. Qe2 (8. Na3 a6 9. Qe1 b5 10. Qh4 Ne4 (10... d4 11. c4 dxc3 12. Bxc3 h6 13. Nc2 Be7 14. Be2 Ne4 15. Qe1 Nxc3 {0-1 (15) Moser,M (1913)-Weber,K (2278) ICCF 2013}) 11. Qh5 f6 12. c4 b4 13. Nc2 g6 14. Qh6 Qc7 15. Kh1 a5 16. a3 Bb7 17. Qh3 Qe7 18. a4 Qf7 19. Rad1 Rad8 {Caliguire,J (2067)-Andrus,G ICCF 2011 0-1}) ( 8. a4 a6 9. Ne5 Bxe5 10. fxe5 Nd7 11. Na3 Qh4 12. Rf4 Qh6 13. Rf3 g6 14. Be2 Ndxe5 15. Rh3 Qg7 16. d4 Nd7 17. c4 Rd8 18. Qd2 Nf6 19. Bf3 e5 {Mitel, C-Lambourne,D ICCF 2010 0-1 (25)}) 8... a6 (8... Nb4 9. a3 Nxd3 10. Qxd3 Bd7 11. Ng5 g6 12. Nc3 Bc6 13. a4 a6 14. Nd1 Qe7 15. Nf2 e5 16. fxe5 Bxe5 17. Bxe5 Qxe5 18. Nf3 Qe7 19. Qc3 Rfe8 20. Rae1 {Andreani,C-Palladino,M (2025) ICCF 2010 0-1 (39)}) 9. c4 d4 10. exd4 cxd4 11. Ne5 Bxe5 12. fxe5 Nd7 13. Qe4 f5 14. exf6 Nxf6 15. Rxf6 Qxf6 16. Qxh7+ Kf7 17. Ba3 {1-0 (17) Lindemann,R (2222) -Koks,P ICCF 2015}) (6... Nc6 7. O-O Bd7 8. Ne5 Nb4 9. Nxd7 Nxd7 10. Bxh7+ Kxh7 11. a3 Nf6 12. axb4 Bxb4 13. f5 Kg8 14. Rf4 Bd6 15. Rh4 exf5 16. Raa4 Re8 17. Qf3 Ng4 18. Raxg4 {Nielsen,J (1942)-Schubert,S (2029) ICCF 2007 1-0 (52)}) 7. O-O Nc5 8. Be2 b6 9. Ne5 Bb7 10. d3 c6 11. Nd2 Qc7 12. Qe1 Nfd7 13. Qh4 f6 14. Nxd7 Nxd7 15. Rf3 e5 16. Rh3 h6 17. f5 Rad8 {Pimmingstorfer,C-Schyndel,A ICCF 2009 1/2}) 6... c5 7. O-O (7. d3 Nc6 8. O-O Qc7 (8... Be7 9. Qe1 Re8 10. Ne5 d4 11. e4 h6 12. g4 Nd7 13. Nxc6 bxc6 14. Nd2 e5 15. f5 Bg5 16. Nf3 Be3+ 17. Kh1 Nf6 18. Qg3 Nh7 19. h4 Bf4 20. Qg2 {Ward,B (1577)-Clark,M (1567) ICCF 2019 1-0 (28)}) 9. Bxf6 gxf6 10. Qe1 Kh8 11. Qh4 Be7 12. Nbd2 Nb4 13. e4 f5 14. Qh6 Rg8 15. Ng5 Bxg5 16. fxg5 Nxc2 17. Rf3 Nxa1 18. Rh3 Rg7 {Ward,B (1670)-Holt,F (1631) ICCF 2015 0-1}) 7... b6 8. Qe1 (8. Ne5 Bb7 9. d3 Nfd7 10. Nd2 Qc7 11. d4 f6 12. Nef3 Nc6 13. c3 Rae8 14. Rc1 e5 15. dxe5 fxe5 16. e4 exf4 17. exd5 Ne7 18. Ng5 Nxd5 19. Bc4 N7f6 {Christensen,J-Ploscaru,S ICCF 2015 0-1 (28)}) (8. c4 Nc6 9. Ne5 Bb7 10. Na3 a6 11. Bf3 Qe7 12. cxd5 Nxd5 13. Qe2 f6 14. Nxc6 Bxc6 15. Rac1 Qd7 16. Nc4 Bc7 17. Rfd1 b5 18. Na3 Rac8 19. d4 cxd4 {Carbery,K-Nita, C (2139) ICCF 2011 1/2 (55)}) 8... Nc6 9. Qh4 Bb7 10. a4 d4 11. Na3 Be7 12. Qh3 a6 13. Ne5 Qc7 14. Nxc6 Bxc6 15. Nc4 Rfd8 16. Bd3 {Bellette,A (2156)-Deidun,J (2260) ICCF 2006 1/2 (76)}) (4... Nc6 5. Bb2 a6 (5... Bd6 6. Be2 Qe7 (6... O-O 7. O-O Bd7 (7... Re8 8. Ne5 Bxe5 9. fxe5 Nd7 10. d4 Rf8 11. Ba3 Ne7 12. Nc3 f6 13. exf6 Rxf6 14. Qd3 c6 15. e4 dxe4 16. Nxe4 Rxf1+ 17. Rxf1 Nf6 18. Rxf6 gxf6 19. Nxf6+ {De Smet,K (2223)-Rice,R (1422) ICCF 2013 1-0}) 8. c4 Re8 9. Ne5 Qe7 10. d4 Bxe5 11. dxe5 Ne4 12. cxd5 Nb4 13. dxe6 Bxe6 14. f5 Rad8 15. Qc1 Bd5 16. f6 Qf8 17. Qxc7 Rc8 18. Qa5 {Bassanini,M-Fanelli,F (1796) ICCF 2005 1-0 (33)}) 7. d4 b6 8. Ne5 Bb7 9. Bb5 Bxe5 10. fxe5 Ne4 11. O-O h5 12. Qf3 h4 13. Qg4 O-O-O 14. Ba3 Qd7 15. Qxg7 Rdg8 16. Qxf7 Qxf7 17. Rxf7 {Bruce,R (1902) -Buchmann,H (1927) ICCF 2015 0-1 (59)}) (5... Bc5 6. Bb5 (6. d4 Bb4+ 7. c3 Bd6 8. Bd3 Ne7 9. Qe2 c5 10. Nbd2 O-O 11. O-O cxd4 12. cxd4 Bd7 13. Ne5 Rc8 14. Rac1 Qa5 15. a3 Rxc1 16. Rxc1 Rc8 17. Rxc8+ Bxc8 {Straka,J (2181)-Kruk,S (2121) ICCF 2013 1/2 (28)}) 6... Bd7 7. O-O O-O 8. a3 a6 9. Bd3 Qe7 10. Qe1 Bd6 11. Qg3 Rfe8 12. Ne5 Red8 13. Rf3 Bxe5 14. fxe5 Ne4 15. Bxe4 dxe4 16. Rf4 Qc5 17. Nc3 {Krüger,J-Connolly,C (1904) ICCF 2006 1-0 (42)}) (5... Bd7 6. Be2 Bc5 7. d4 Bd6 8. c4 Bb4+ 9. Nc3 Ne4 10. Qc2 Bxc3+ 11. Bxc3 f6 12. O-O Ne7 13. Bd3 f5 14. Bb4 Nd6 15. Ne5 O-O 16. Rac1 a5 17. Be1 {Jalas,A (1755)-Kuula,R (2199) ICCF 2010 1/2 (33)}) (5... Be7 6. Bb5 Bd7 {0-1 (6) Marcel,A-Charmat,G ICCF 2009} ( 6... O-O 7. Bxc6 bxc6 8. O-O (8. Ne5 Bb7 9. O-O c5 (9... Ba6 10. d3 Bb7 11. Nd2 c5 12. c4 Nd7 13. Ndf3 Nxe5 14. Nxe5 d4 15. e4 Qd6 16. Rf3 f6 17. Ng4 f5 18. Nf2 fxe4 19. Nxe4 Bxe4 20. dxe4 Rxf4 21. Qd3 {Spencer,A (1630)-Sutcliffe,P ICCF 2016 0-1 (31)}) 10. d3 Re8 11. Rf3 d4 12. e4 Bd6 13. Rg3 Nd7 14. Qh5 Nxe5 15. fxe5 Be7 16. Nd2 Rf8 17. Qh6 g6 18. Rh3 Bh4 19. Rxh4 Re8 {Esposito,L (1541) -Baldini,A (1573) ICCF 2018 1-0}) 8... Ba6 9. d3 h6 10. Ne5 Qe8 11. Rf3 c5 12. Nd2 Bd6 13. Rh3 Qe7 14. Nc6 Qe8 15. Bxf6 Qxc6 16. Qg4 {1-0 (16) Green,P (2078) -Villalobos Aguinaga,M ICCF 2016})) (5... h6 6. Bd3 Nb4 7. Be2 Bd6 8. c4 dxc4 9. bxc4 Bd7 10. a3 Nc6 11. Qc2 Qe7 12. d4 e5 13. fxe5 Nxe5 14. dxe5 Bc5 15. exf6 gxf6 16. Nc3 c6 17. Ne4 {Bruce,R (1894)-Sweetland,D (1395) ICCF 2016 1-0 (26)}) 6. Be2 Bc5 (6... Ne4 7. O-O {1-0 (7) Clayton,G (1642)-Safari Nejad,R (1651) ICCF 2017}) 7. d4 Be7 8. O-O Ng4 9. Qc1 Bd7 10. c4 f5 11. cxd5 exd5 12. Nc3 Nf6 13. Ne5 Bb4 14. Bf3 Ne7 15. Nd3 Bxc3 16. Qxc3 {Alozy,F (1988)-Lorin,F (1856) ICCF 2010 1-0 (34)}) (4... Bc5 5. Bb2 (5. Be2 O-O 6. O-O Nc6 7. d4 Bd6 8. c4 dxc4 9. bxc4 b6 10. Ne5 Bxe5 11. fxe5 Ne4 12. Bf3 Bb7 13. Bxe4 Na5 14. Bxb7 Nxb7 15. Ba3 Re8 16. Nc3 Qg5 {Geus,A (2172)-Fuentes Gil,F ICCF 2011 1-0}) 5... O-O (5... c6 6. d4 Bb4+ 7. c3 Be7 8. Bd3 Nbd7 9. Ne5 Nxe5 10. fxe5 Nd7 11. O-O Bg5 12. Qe2 O-O 13. Nd2 f5 14. exf6 Bxf6 15. e4 b5 16. e5 Be7 17. Qh5 { Viver Ruiz,J-Lucena Cifré,R (1505) ICCF 2020 1-0}) 6. Bd3 (6. Nc3 Nc6 7. Be2 a6 8. h3 d4 9. exd4 Nxd4 10. Bd3 Re8 11. Ne5 b5 12. Ne4 Ba7 13. Ng5 Qd5 14. Rh2 h6 15. h4 Bb7 16. Ngf3 Ne4 17. Ng4 Rad8 {Azzoug,S (1674)-Phelippeau,J ICCF 2008 0-1}) (6. Be2 Nc6 7. O-O d4 (7... h6 8. d4 Bd6 9. Ne5 Ne7 10. Bd3 Nf5 11. Qe2 Bxe5 12. fxe5 Ne4 13. Bxe4 dxe4 14. Nc3 b6 15. Rad1 Bb7 16. Rf4 Nh4 17. Nxe4 Bxe4 18. Rxe4 Qe7 19. Rg4 {Christensen,J-Lamy,O ICCF 2015 1-0 (60)}) 8. b4 Nxb4 9. Nxd4 Re8 10. Nb3 Bd6 11. a3 Nc6 12. d4 Nd5 13. Qd3 b5 14. Nc3 a6 15. Bf3 Be7 16. Nxd5 exd5 17. e4 Be6 {Elias,B (1618)-Casella,S (1811) ICCF 2009 1/2 (27)}) 6... Nc6 7. O-O Nb4 8. Be2 a5 9. Ne5 b6 10. a3 Na6 11. d4 Be7 12. c4 Bb7 13. Nc3 dxc4 14. bxc4 c5 15. Bf3 Bxf3 16. Rxf3 {Masset,J (1909)-Voglimacci,N (1679) ICCF 2012 1-0 (25)}) (4... Nbd7 5. Bb2 Be7 (5... b6 6. Bb5 Bc5 7. Bc6 Rb8 8. g4 h6 9. Nc3 O-O 10. Qe2 Ne4 11. g5 hxg5 12. Nxe4 Bb7 13. Nfxg5 Nf6 14. Nxf6+ gxf6 15. Qh5 fxg5 16. Qh8# {1-0 (16) Maltais,C (2108)-Lamy,O ICCF 2015}) (5... Bd6 6. Be2 (6. c4 O-O 7. Be2 Re8 8. Ne5 Bxe5 9. fxe5 Ne4 10. O-O b6 11. d3 Nec5 12. b4 Nb7 13. d4 dxc4 14. Bxc4 c5 15. Nd2 cxb4 16. Qh5 Qe7 17. Ne4 Nf8 {Anderson, C-Gomez,C ICCF 2020 1-0}) 6... O-O 7. O-O b6 {0-1 (7) Marcel,A-Brien,A ICCF 2009}) 6. Be2 O-O 7. O-O c6 (7... h6 8. Qe1 Nh7 9. Qg3 Bf6 10. d4 Kh8 11. c4 c6 12. Nbd2 b6 13. e4 c5 14. cxd5 exd5 15. e5 Be7 16. Rad1 Rg8 17. Bd3 Ndf8 18. dxc5 Bxc5+ 19. Kh1 {Wilson,G (1919)-Laguerta,C (1592) ICCF 2017 1-0 (26)}) 8. Nc3 (8. d3 Nc5 9. Nbd2 Qc7 10. Ne5 Ncd7 11. d4 Nxe5 12. fxe5 Ne4 13. Bd3 Bb4 14. Nxe4 dxe4 15. Bxe4 g6 16. Qf3 Bd7 17. Qh3 f5 18. exf6 e5 19. Qh6 Rf7 { Fox,J (1567)-Hardwick,M (1168) ICCF 2018 1-0 (30)}) 8... Qc7 9. Kh1 Bd6 10. d4 Ng4 11. Qd2 f6 12. h3 Nh6 13. Qd3 c5 14. Nb5 Qc6 15. Nxd6 Qxd6 16. Ba3 { Wark,P (1756)-Scott,R (1583) ICCF 2008 1-0 (41)}) (4... g6 5. Bb2 Bg7 6. Be2 ( 6. Bd3 O-O 7. O-O Nc6 8. Qe2 Nb4 9. Nc3 Re8 10. a3 Nxd3 11. Qxd3 c5 12. Ne5 c4 13. bxc4 dxc4 14. Nxc4 Qxd3 15. cxd3 Rd8 16. d4 Nd5 17. Rac1 b6 {Pivirotto,F (1841)-Evangelisti,M (1401) ICCF 2020 1-0 (37)}) 6... O-O 7. O-O c5 8. Ne5 Qc7 (8... b6 9. a4 Bb7 10. a5 bxa5 11. Nc3 Qc7 12. Qe1 Na6 13. Bxa6 Bxa6 14. d3 c4 {Maltais,C (2245)-Eliseev,N (2153) ICCF 2019 1/2}) 9. c4 Nc6 10. Na3 a6 11. Nxc6 Qxc6 12. Bf3 b6 13. Rc1 Bb7 14. cxd5 exd5 15. b4 a5 16. bxc5 {Andreassen, E (2317)-Øvergaard,J (2141) ICCF 2009 1-0 (39)}) 5. Bb2 (5. Bb5+ Bd7 6. Bxd7+ Nbxd7 7. O-O Bd6 8. Bb2 O-O (8... Qb6 9. Ne5 Be7 10. Nxd7 Nxd7 11. Bxg7 Rg8 12. Bb2 d4 13. Na3 Qc6 14. Qe2 dxe3 15. dxe3 O-O-O {Williamson,D (1947)-Fausey,V (1741) ICCF 2014 1-0 (36)}) (8... Qc7 9. d3 O-O 10. Nbd2 e5 11. fxe5 Nxe5 12. Qe2 Rfe8 13. h3 Ng6 14. Bxf6 gxf6 15. d4 Bf4 16. e4 cxd4 17. Nxd4 Qc5 18. c3 Qxc3 19. N2f3 dxe4 20. Nb5 {Clarke,P-Elliston,R (2130) ICCF 2012 0-1}) 9. Na3 ( 9. c4 d4 (9... Qe7 10. Nc3 dxc4 11. bxc4 Rad8 12. Nb5 Bb8 13. Rb1 h6 14. Qe2 b6 15. d3 a6 16. Nc3 Bc7 17. g3 Ne8 18. e4 Nb8 19. e5 Nc6 {Bito,L (2078) -Bystrický st.,K (1737) ICCF 2013 1-0 (34)}) 10. Qe2 Re8 11. Na3 a6 12. exd4 cxd4 13. Ne5 Qb6 14. d3 Qc7 15. Rae1 Bb4 16. Rb1 {1-0 (16) Pivirotto,F (1901) -Casella,S (1657) ICCF 2019}) (9. Qe1 c4 10. d3 cxd3 11. cxd3 Rc8 12. Nc3 a6 13. Ne2 Qe7 14. Ned4 Ng4 15. Qg3 f5 16. h3 Ngf6 17. Qh4 Nc5 18. Rfd1 Rc7 19. Rac1 Rfc8 20. Ng5 {Krüger,J-Sen,T (2066) ICCF 2006 1-0 (57)}) (9. Ne5 Qc7 10. Nxd7 Nxd7 11. Qg4 g6 12. Qh4 Rfe8 13. Rf3 h5 14. Rg3 Kh7 15. Rh3 Be7 16. Qg4 d4 17. Na3 Rad8 18. e4 Kg8 19. Qf3 a6 20. c3 b5 {Francescone,G-Szerlak,A (1953) ICCF 2010 1/2 (45)}) 9... a6 10. c4 Qc7 11. Qe1 d4 12. g3 Rfe8 13. exd4 cxd4 14. d3 Ng4 15. Bxd4 Bxa3 16. Qc3 Bc5 {Fox,J (1506)-Clark,S (1877) ICCF 2020 0-1 (32)}) 5... Be7 (5... Bd6 6. Be2 Nc6 7. O-O O-O 8. Ne5 Nd7 (8... Ne7 9. d4 Nf5 10. Rf3 cxd4 11. exd4 Ne4 12. Rh3 f6 13. Nd3 Qb6 14. c3 Bd7 15. Qe1 Rac8 16. g4 Ne7 17. Qh4 h6 18. g5 fxg5 19. fxg5 Nxg5 20. Rg3 {Ward,B (1663)-Lane,R (1734) ICCF 2017 0-1 (43)}) (8... h6 9. Nxc6 bxc6 10. Qe1 Bc7 11. Qg3 d4 12. Na3 a5 13. Bf3 Nd5 14. Nc4 Ba6 15. Qf2 Nb4 16. d3 Bxc4 17. dxc4 dxe3 18. Qg3 e5 19. f5 Nxc2 20. f6 {Kaminski,J (2010)-Dumitrescu,F (2031) ICCF 2014 1/2 (51)}) 9. d4 Qc7 10. c3 f6 11. Nf3 Nb6 12. a4 Bd7 13. a5 Nc8 14. c4 N8e7 15. Nc3 Nb4 16. Qd2 b6 17. a6 {Maltais,C (2256)-Maurer,S (2226) ICCF 2020 1-0 (31)}) (5... a6 6. Be2 (6. Bd3 b5 7. O-O Nc6 8. Nc3 g6 9. a4 b4 10. Ne2 Bg7 11. Ne5 Nxe5 12. Bxe5 O-O 13. Ng3 a5 {1/2 (13) Schulze,P (2115)-Popov,E (2354) ICCF 2018}) 6... Nc6 7. O-O Bd6 8. Ne5 (8. a3 b5 9. Ne5 Ne7 10. d3 Nf5 11. Qd2 d4 12. Bf3 dxe3 13. Qe2 Rb8 14. Nc6 Qc7 15. Nxb8 Qxb8 16. g3 h5 17. Bxf6 gxf6 18. c3 Rg8 19. Bc6+ Kf8 {Wilson,G (1931)-Egelstaff,R (2087) ICCF 2016 0-1 (27)}) 8... Bd7 9. Bf3 O-O 10. c4 Be8 11. d3 Rb8 12. Nd2 Qc7 13. Ng4 Nxg4 14. Bxg4 f5 15. cxd5 exd5 16. Bf3 Bf7 17. g3 {Ramos Mora,J (1779)-Juárez de Vena,A (1915) ICCF 2019 0-1 (31)}) (5... Nc6 6. Bb5 (6. Ne5 Bd6 7. Bb5 Qb6 8. Bxc6+ bxc6 9. Nc3 Qc7 10. Na4 O-O 11. O-O Nd7 12. Nxd7 Qxd7 13. Qe2 c4 14. d3 Ba6 15. dxc4 dxc4 16. Bc3 Bb5 17. Qg4 {Nicotera,A-Schenning,A ICCF 2011 1/2 (47)}) 6... Be7 (6... a6 7. Bxc6+ bxc6 {0-1 (7) Marcel,A-Cornu,C ICCF 2009}) (6... Rb8 7. Ne5 Qc7 8. O-O Bd6 9. Bxc6+ bxc6 10. Rf3 h5 11. Rh3 c4 12. Bc3 Ba6 13. Nf3 Ng4 14. Bxg7 Rh7 15. Bb2 f6 16. Qe1 e5 17. Rh4 exf4 18. Ba3 {Kaminski,J (1895)-Visser,A (1849) ICCF 2019 1/2 (67)}) 7. Ne5 Qc7 (7... Bd7 8. Bxc6 Bxc6 9. d3 O-O 10. g4 Nd7 11. Nd2 Qc7 12. Ndf3 Nxe5 13. Bxe5 Qa5+ 14. c3 f6 15. b4 cxb4 16. Bd4 bxc3 { Gonet Boisson,G-Humbert,P ICCF 2009 0-1 (28)}) 8. Bxc6+ bxc6 9. O-O O-O 10. d3 (10. Rf3 Ne8 11. Rh3 g6 {0-1 (11) Gracia Traín,C-Dorn,M (1930) ICCF 2013}) 10... Nd7 (10... a5 11. Qe2 a4 12. Nd2 axb3 13. axb3 Bb7 14. g4 Rxa1 15. Rxa1 Ra8 16. Rxa8+ Bxa8 17. g5 Nd7 18. Ndf3 Nb6 19. c4 Bb7 20. h4 Bf8 21. h5 Nc8 22. h6 {Clayton,G (1627)-Bishop,J ICCF 2015 0-1 (43)}) 11. Qh5 Nxe5 12. Bxe5 Bd6 13. Bxg7 {1-0 (13) Tauber,H (2288)-Cretu,S (2042) ICCF 2005}) 6. Bb5+ (6. Nc3 O-O (6... a6 7. Bd3 Nc6 8. O-O O-O 9. a3 Ne8 (9... b5 10. a4 b4 11. Ne2 Ne4 12. Rb1 Bb7 13. Ng3 f5 14. Qc1 Nxg3 15. hxg3 Qd6 16. Qe1 Bf6 17. Bxf6 Rxf6 18. Qe2 e5 19. fxe5 Nxe5 20. Nxe5 Qxe5 21. g4 {Bassanini,M (1858)-Zazzeri,M ICCF 2012 1-0 (50)}) 10. Ne5 f5 11. Nxc6 bxc6 12. Na4 Nf6 13. h3 a5 14. g4 Ba6 15. Bxa6 Rxa6 16. Rf2 Bd6 17. Rg2 Qe7 18. Qe2 {Fagerbekk,E (2257)-Ferre Pérez,A (2204) ICCF 2009 1-0 (76)}) 7. Bd3 Nc6 8. O-O Nb4 (8... b6 9. a3 Bb7 10. Qe1 Nd7 ( 10... Na5 11. Rd1 a6 12. Qg3 Rc8 13. Ne5 c4 14. bxc4 Nxc4 15. Nxc4 {1-0 (15) Ott,P (1595)-Lowenthal,J ICCF 2018}) 11. Qg3 h6 12. Nxd5 {1-0 (12) Nielsen,J (1979)-Vellema,J (1798) ICCF 2016}) 9. Ne5 Nxd3 10. cxd3 d4 11. exd4 (11. Ne2 Nd5 12. e4 f6 13. exd5 fxe5 14. dxe6 Bxe6 15. b4 Qb6 16. a3 cxb4 17. fxe5 bxa3 18. Bxd4 Rxf1+ 19. Qxf1 Qb5 20. Rb1 Qxd3 21. Rxb7 Rf8 22. Qe1 Bg5 {Schulze,P (2115)-Rautenberg,H (2186) ICCF 2018 0-1 (26)}) 11... Qxd4+ 12. Kh1 Ne8 13. Rf3 f6 14. Nc4 g6 15. Ne4 Qd8 16. a4 Ng7 17. Qg1 b6 {Pisani,C (2139)-Saglione,E (2429) ICCF 2016 0-1 (41)}) (6. a4 O-O 7. g3 Nc6 8. Bg2 b6 9. O-O Bb7 10. Ne5 Nd7 11. Nxc6 Bxc6 12. d3 Bf6 13. c3 Qc7 14. Nd2 Be7 15. Qe2 Rfd8 16. e4 dxe4 17. Nxe4 Nf6 {Sonnenfeld,W (1877)-Radytia,A ICCF 2017 1-0 (52)}) (6. h3 Nc6 7. Be2 Qc7 8. Ne5 O-O {1/2 (8) Lucan,Z (1541)-Pressl,L (1764) ICCF 2016}) (6. Ne5 O-O 7. Bd3 Nfd7 8. O-O Nxe5 9. fxe5 Nc6 10. Qh5 g6 11. Qf3 Nb4 12. Qe2 Qc7 13. Na3 a6 14. c4 Nc6 15. cxd5 exd5 16. Qf3 Be6 17. Qf4 Qa5 {Schulz,B (1756) -Voveris,S ICCF 2013 0-1 (31)}) 6... Bd7 (6... Nbd7 7. O-O O-O (7... a6 8. Bd3 b5 9. c4 bxc4 10. bxc4 Rb8 11. Qc2 d4 12. exd4 Bb7 13. d5 exd5 14. Bxf6 Nxf6 15. Nc3 g6 16. cxd5 O-O 17. Rab1 Nxd5 {Kögeler,A (2154)-Tjiptadi,K (1885) ICCF 2017 1/2}) 8. Bd3 (8. Bxd7 Qxd7 9. Ne5 Qc7 10. d3 Ne8 11. Nd2 f6 12. Nef3 b5 13. Qe2 Rb8 14. e4 c4 15. dxc4 bxc4 16. Qe3 Nd6 17. Rae1 dxe4 18. Nxe4 Nxe4 19. Qxe4 c3 {Vercauteren,N (1727)-Pirhot,T ICCF 2019 0-1 (50)}) 8... b6 9. c4 Nb8 10. Nc3 Nc6 11. Ne5 Bb7 12. Qe2 Nb4 13. Bb1 d4 14. Nd1 a5 15. Nf2 a4 16. bxa4 Rxa4 17. a3 Nc6 18. Nxc6 {Heß,H (2319)-Mishin,A (2323) ICCF 2017 1/2 (32)}) 7. Bxd7+ (7. Be2 Nc6 8. O-O O-O 9. d4 Qc7 10. a3 cxd4 11. Nxd4 Nxd4 12. Bxd4 Bc5 13. Nd2 Rac8 14. c4 a6 15. Nf3 dxc4 16. Bxc4 Bxd4 17. Nxd4 b5 18. Bd3 Bc6 { Clayton,G (1627)-Mechlowski,L ICCF 2015 0-1 (26)}) 7... Nbxd7 (7... Nfxd7 8. Bxg7 Rg8 9. Bh6 Bf6 10. c3 Rxg2 11. Ng5 Bxg5 12. Bxg5 Rxg5 13. fxg5 Qxg5 14. Qe2 Nc6 15. Na3 Qh4+ 16. Kd1 O-O-O 17. Kc1 d4 18. Kb2 Qe4 19. Rae1 {Roynet,S (2158)-Clark,S (1962) ICCF 2018 1-0 (40)}) 8. O-O O-O 9. Qe2 a6 (9... Qc7 10. c4 Rad8 11. Nc3 a6 12. d3 Rfe8 13. Rad1 Bd6 14. g3 Qa5 15. d4 cxd4 16. exd4 Bb4 17. Rc1 Rc8 18. c5 h6 19. Nd2 Nf8 20. Ndb1 Bxc3 21. Nxc3 {Arnold,G (2226) -Thompson,B (2184) ICCF 2011 1/2 (25)}) (9... h6 10. d3 Rb8 11. Nbd2 b5 12. Ne5 Qc7 13. Ndf3 c4 14. Bd4 Bd6 15. bxc4 bxc4 16. dxc4 Bc5 17. cxd5 Bxd4 18. exd4 Nxd5 19. Nxd7 Qxd7 20. Ne5 Qc7 21. c4 {Hall,G-Renteria,J (2155) ICCF 2006 1-0 (27)}) (9... Rc8 10. c4 b6 11. d3 Bd6 12. Nbd2 Qc7 13. Rae1 e5 14. cxd5 Nxd5 15. g3 Rfe8 16. Ne4 exf4 17. gxf4 Bf8 18. f5 Rcd8 19. Nfd2 Qc6 20. Qh5 N7f6 21. Bxf6 {Bellette,A (2156)-Renteria,J (2155) ICCF 2006 1-0 (28)}) 10. Ne5 Qc7 11. c4 Rfd8 12. cxd5 Nxd5 13. Nc3 Nxe5 14. Nxd5 exd5 15. Bxe5 {Pradeilles, G-Bellisario,C (1428) ICCF 2018 1-0 (32)}) (3... Nc6 4. Bb5 (4. b3 g6 (4... Bf5 5. Bb2 (5. Bb5 e6 6. O-O Bc5 7. Bxc6+ bxc6 8. Bb2 O-O 9. Nd4 Bg4 10. Qe1 Bxd4 11. Bxd4 Qe7 12. d3 c5 13. Be5 c6 14. Nd2 h6 15. Nf3 Nd7 16. Bb2 Bf5 {Walsh, H-Neil,C (1673) ICCF 2011 1-0 (35)}) 5... e6 6. Bb5 a6 7. Bxc6+ bxc6 8. Ne5 (8. O-O Be7 9. Ne5 Qd6 10. d3 O-O 11. Qf3 h5 12. Ba3 c5 13. Nc3 Ng4 14. d4 Nxe5 15. fxe5 Qd8 16. Nxd5 exd5 17. Qxf5 cxd4 18. Bxe7 Qxe7 19. exd4 g6 {Øvergaard,J (2180)-Haug,K (2142) ICCF 2008 1-0}) 8... g6 9. Nxc6 Qd6 10. Bxf6 Rg8 11. Ne5 d4 12. Qf3 Rb8 13. e4 h5 14. exf5 gxf5 15. Qxh5 Rxg2 16. Qxf7# {Clayton,G (1627)-Magill,R (1489) ICCF 2015 1-0}) (4... Bg4 5. Be2 e6 6. O-O Bd6 7. Bb2 O-O 8. c4 (8. Ne5 Bxe2 9. Qxe2 Ne7 10. d3 Bc5 11. Nd2 Nf5 12. Rf3 Nd7 13. Nxd7 Qxd7 14. Kh1 c6 15. Rh3 f6 16. e4 Nh6 17. Rf1 Qf7 18. d4 Bb6 19. c3 Rfe8 { Andreassen,E (2314)-Wicklund-Hansen,G (2059) ICCF 2007 1-0 (53)}) 8... Qe7 9. a3 a6 10. h3 Bh5 11. Nc3 Bg6 12. d4 h6 13. c5 Be4 14. cxd6 Qxd6 15. Ne5 Rab8 16. a4 {Williamson,D (1947)-Claxton,T (1681) ICCF 2014 1-0 (29)}) 5. Bb2 Bg7 6. Bb5 O-O 7. Bxc6 (7. O-O Bd7 8. Bxc6 Bxc6 9. Ne5 Bb5 10. d3 Nh5 11. Nc3 Ba6 12. Qf3 f5 13. Qxd5+ Qxd5 14. Nxd5 Rac8 15. Nxe7+ Kh8 16. Nxc8 Rxc8 17. Nf7+ Kg8 18. Bxg7 Kxg7 {Vercauteren,N-Secondi,A (1517) ICCF 2015 1-0 (31)}) 7... bxc6 8. O-O (8. Ne5 Qd6 (8... Bb7 9. O-O Ne4 10. d3 Nd6 11. Nd2 Nf5 12. Qf3 d4 13. exd4 Nxd4 14. Qe4 Nf5 15. Qb4 Rb8 16. Qc5 a6 17. Ne4 Re8 18. Rae1 e6 19. Qf2 Qe7 20. Nc5 {Nielsen,J (1916)-Mukhin,A (1712) ICCF 2006 1-0 (36)}) 9. d4 c5 10. Ba3 Qe6 11. Bxc5 Ne4 12. Ba3 Bxe5 13. dxe5 Ba6 14. Nd2 Qb6 15. c4 Qxe3+ 16. Qe2 Qxf4 17. Nxe4 dxe4 18. Rd1 Qxe5 19. O-O Bb7 {Masset,J (1909)-Nepper,J (1934) ICCF 2012 0-1 (42)}) 8... c5 (8... Bg4 9. h3 (9. d3 c5 (9... Rb8 10. Qe1 Qd7 11. Nbd2 Qd6 12. Qh4 Bh5 13. c4 Rfd8 14. Bd4 c5 15. Be5 Qc6 16. Rad1 a5 17. cxd5 Rxd5 18. Nc4 Rbd8 19. Nb2 R5d7 20. Rc1 a4 21. bxa4 {Moser,M-Risdon,A (1878) ICCF 2011 1/2 (72)}) 10. Nbd2 Qd6 11. Qe1 Rfd8 12. a4 Bc8 13. e4 Qxf4 14. exd5 Nxd5 15. Bxg7 Kxg7 16. Ne5 Qd4+ 17. Rf2 Rd6 18. Nef3 Qb4 19. Ne4 Rb6 20. c3 Qxb3 {Polyakov,E (2162)-Moen,K (1697) ICCF 2016 1-0}) (9. Qe1 Bxf3 10. Rxf3 Qd7 11. Nc3 Ne4 12. d3 Nc5 13. Rd1 f5 14. Ba3 Ne6 15. Na4 a5 16. Rf2 Rf7 17. c4 Bf6 18. d4 Bh4 19. g3 Bf6 20. Rc2 Rff8 {Roynet,S (2062)-Vorontsov,G (2027) ICCF 2017 1-0 (69)}) 9... Bf5 10. Bd4 Qd6 11. Be5 Qd7 12. Nc3 Ne4 13. Bxg7 Kxg7 14. Ne2 c5 15. d3 Nd6 16. c4 c6 17. Rc1 dxc4 18. bxc4 f6 19. e4 Be6 20. Nc3 { Ackley,P (2044)-Primrose,J (1906) ICCF 2019 1-0 (48)}) 9. Nc3 Ba6 10. d3 d4 11. Na4 Ng4 12. e4 Bb5 13. Nxc5 Qd6 14. b4 Qxf4 15. Qe2 Qd6 {Vecek,M (2323)-Gamant, G (1966) ICCF 2017 1-0 (29)}) (4. d4 Bf5 (4... Bg4 5. c3 (5. h3 Bxf3 (5... Bh5 6. g4 Nxg4 7. hxg4 Bxg4 8. Bd2 e6 9. Nc3 Be7 10. Qe2 Bf6 11. O-O-O Bxd4 12. exd4 Nxd4 13. Qe5 Bxf3 14. Qxd4 Bxh1 15. Bb5+ c6 16. Qxg7 Ke7 17. f5 {Lam, M-Yeung,N ICCF 2013 1-0}) 6. Qxf3 Nb4 (6... e6 7. Nc3 Bb4 (7... Nb4 8. Qf2 c5 9. a3 Nc6 10. Bd3 c4 11. Be2 Be7 12. Bd2 O-O 13. g4 Ne8 14. h4 b5 15. h5 Nd6 16. g5 a5 17. Bf3 b4 18. Na4 Nf5 19. c3 {Jensen,K (2163)-Brzezinski,B (2167) ICCF 2014 1-0 (36)}) 8. Bd3 Be7 9. a3 a6 10. Ne2 O-O 11. Bd2 b5 12. g4 Rb8 13. g5 Nd7 14. e4 Nb6 15. h4 Qd7 16. b3 Nd8 17. h5 c5 {Bito,L (2115)-Aymard,M (2116) ICCF 2016 1-0 (40)}) 7. Bb5+ c6 8. Bd3 e6 9. Bd2 Nxd3+ 10. cxd3 Qb6 11. Bc3 O-O-O 12. Nd2 h5 13. O-O h4 14. f5 Be7 15. Nb3 Rd7 16. fxe6 fxe6 {Dreisch, J (2031)-Glowinski,D (1741) ICCF 2017 1/2 (32)}) 5... e6 6. Bd3 (6. Be2 Bd6 7. Nbd2 Bxf3 8. Nxf3 O-O 9. Ne5 Bxe5 10. fxe5 Ne4 11. O-O f5 12. Bf3 Qg5 13. Bd2 Ne7 14. Qe2 Ng6 15. Bxe4 fxe4 16. Rxf8+ Rxf8 17. Rf1 Nh4 {Zageris,A-Zaccaria,V ICCF 2007 1/2}) 6... h5 7. Nbd2 Bd6 8. Qc2 Ne7 9. O-O O-O 10. h3 Bf5 11. e4 dxe4 12. Nxe4 Nxe4 13. Bxe4 c5 14. Bxf5 exf5 15. Be3 Nd5 16. Bf2 {Szaro,M-Belz, B ICCF 2015 1/2 (33)}) (4... g6 5. c3 Bf5 6. Bd3 e6 7. O-O Bd6 8. Qe2 O-O 9. Bd2 Bxd3 10. Qxd3 Ne7 11. c4 dxc4 12. Qxc4 Rc8 13. b4 a5 14. a3 Ned5 15. Nc3 Qe7 16. Rfb1 {Norman,N (2142)-Lindberg,W (1981) ICCF 2015 1/2 (42)}) (4... a6 5. Bd3 Bg4 6. O-O e6 7. Bd2 Bd6 8. Nc3 Bxf3 9. Qxf3 Qe7 10. Ne2 Bb4 11. c3 Ba5 12. b4 Bb6 13. a4 O-O 14. g4 g6 15. Rfc1 Qd7 16. c4 {Domenche Redondo,F (1735) -Reyes Cortés,R (1590) ICCF 2020 1-0 (29)}) 5. Be2 (5. Bb5 a6 6. Bxc6+ bxc6 7. Ne5 Qd6 8. O-O e6 9. g4 Be4 10. Nc3 c5 11. dxc5 Qxc5 12. g5 Nd7 13. Nxe4 Qb4 14. Nxd7 Qxe4 15. Nxf8 Kxf8 16. f5 e5 {Domenche Redondo,F (1712)-Martínez Camacho,V (1448) ICCF 2019 1-0}) 5... e6 6. O-O Be7 7. c3 O-O 8. Qe1 h6 9. b3 a6 10. Ba3 Ne4 11. Bxe7 Nxe7 12. c4 c6 13. Nc3 Qa5 14. Nxd5 Qd8 15. Nxe7+ Qxe7 {Shannon,P (1934)-Catania,D (1636) ICCF 2019 1-0 (50)}) (4. d3 Bg4 (4... g6 5. c4 Bg7 6. cxd5 Nxd5 7. e4 Nb6 8. Be2 Bg4 9. Nbd2 O-O 10. h3 Bxf3 11. Nxf3 Nd4 12. O-O Nxf3+ 13. Rxf3 e6 14. Kh2 Bd4 15. Rf1 c5 16. a3 {Vajas,S (1944) -Sabbatini,G (1914) ICCF 2019 1/2 (57)}) 5. Be2 e6 6. O-O d4 (6... Bd6 7. d4 ( 7. Na3 Bxa3 8. bxa3 O-O 9. Bb2 b6 10. Qe1 Bh5 11. Qh4 Bg6 12. g4 Ne8 13. Qxd8 Rxd8 14. Nh4 h6 15. Nxg6 fxg6 16. Bf3 Nd6 {Oaker,W (2187)-Krízek,A ICCF 2007 1-0 (43)}) 7... O-O 8. Ne5 Bxe2 9. Qxe2 Ne7 10. b3 a5 11. Bb2 a4 12. Nd2 Bb4 13. a3 Bxd2 14. Qxd2 Ne4 15. Qe2 Nf5 16. b4 Nfd6 17. c4 Nxc4 18. Nxc4 {Velez Arana,J-Rivas Maceda,J (2003) ICCF 2007 0-1 (49)}) 7. e4 Bc5 8. Ne5 Bxe2 9. Qxe2 O-O 10. Nd2 Qd6 11. g4 Nb4 12. Ndc4 Qd8 13. a3 Na6 14. g5 Nd7 15. h4 f6 { Ainsborough,G (1580)-Howard,D ICCF 2018 1-0 (25)}) (4. Be2 d4 (4... g6 5. d4 Bg7 6. O-O O-O 7. a3 e6 8. c3 Bd7 9. b4 a5 10. b5 Na7 11. a4 c6 12. Na3 Ne4 13. Qb3 cxb5 14. Nxb5 Nxb5 15. Bxb5 Rc8 16. Bb2 {Velez Arana,J (1794)-Pickin,D ICCF 2012 1/2 (58)}) 5. O-O dxe3 (5... Bf5 6. Ne5 dxe3 7. Nxc6 bxc6 8. d4 Rb8 9. c4 e6 10. g4 Be4 11. Nc3 Bb4 12. Nxe4 Nxe4 13. Qd3 Nd2 14. Rd1 Qh4 15. Qxe3 Nxc4 16. Qf3 Nb6 17. Qxc6+ {Bito,L-Hamara,R ICCF 2008 1/2 (53)}) 6. dxe3 Qxd1 7. Rxd1 Bf5 8. Na3 a6 9. Bd2 e6 10. Nc4 Bxc2 11. Rf1 Rd8 12. Rac1 Bf5 13. Na5 Rxd2 14. Nxd2 Nxa5 15. Rxc7 Kd8 {Abbou,J-Sandaogo,E ICCF 2005 0-1 (31)}) (4. Ne5 Nxe5 5. fxe5 Ne4 6. d3 Nc5 7. d4 Ne4 8. Bd3 Bf5 9. O-O e6 10. c4 Qg5 11. cxd5 exd5 12. Nc3 O-O-O 13. Qf3 Bg6 14. Nxd5 Rxd5 15. Bxe4 Bxe4 {Ruiz Bernal, M-Latorre López,J ICCF 2007 1-0}) 4... Bd7 (4... e6 5. b3 (5. O-O Bd6 6. c4 Bd7 7. b3 O-O 8. Bb2 a6 9. Ba4 Ne4 10. d3 Nc5 11. cxd5 exd5 12. Bxc6 Bxc6 13. Nd4 Bb5 14. Nf5 f6 15. Ba3 Re8 16. Rf3 Bd7 {Arnold,G (2295)-McDermott,F (2298) ICCF 2019 0-1 (88)}) 5... Bd7 (5... Bd6 6. Bb2 a6 7. Bxc6+ bxc6 8. O-O O-O 9. c4 c5 10. Nc3 {1-0 (10) Stevens,M (1825)-Bayhill,L ICCF 2011}) 6. Bb2 a6 7. Bxc6 Bxc6 8. Ne5 (8. O-O Bd6 (8... Bb5 9. Re1 c5 10. a4 Bc6 11. Ne5 Qc7 12. d3 h6 13. Nd2 O-O-O 14. Rc1 g5 15. Nxc6 Qxc6 16. Bxf6 Bg7 17. Bxg7 Rh7 18. Bf6 Rg8 19. c4 Rg6 20. cxd5 {Lannoy,J-Ylönen,O ICCF 2009 1-0 (32)}) 9. Ne5 O-O 10. d3 Bd7 11. Nd2 c5 12. Ndf3 h6 13. Qe1 Re8 14. Qg3 Nh5 15. Qg4 Nf6 16. Qh4 Be7 17. Qg3 Nh5 18. Qf2 Nf6 19. a3 b5 {Darias Mateos,A (1842)-Aguilar Medina,J ICCF 2012 1-0 (32)}) 8... Bd6 9. Nxc6 bxc6 10. O-O O-O 11. c4 dxc4 12. Qc2 cxb3 13. axb3 Bb4 14. Rf3 a5 15. Rh3 g6 16. Na3 {Del Vivo,M-Wagner,K (1957) ICCF 2012 1-0 (25)}) (4... g6 5. c3 (5. O-O Bg7 6. d4 O-O 7. Nc3 Bg4 8. b3 Ne4 9. Bb2 Qd6 10. Qe1 Bxf3 11. Rxf3 Nf6 12. Rh3 e6 13. a4 Rfe8 14. a5 a6 15. Be2 h5 16. Na4 Ne7 {Andreassen,E (2157)-Hagen,T (2285) ICCF 2010 1/2 (30)}) (5. Ne5 Bd7 6. Bxc6 (6. Be2 Bg7 7. d4 O-O 8. O-O Bf5 9. c4 dxc4 10. Nc3 Nxe5 11. fxe5 Ne4 12. Bxc4 c5 13. Nxe4 Bxe4 14. b3 Rc8 15. Ba3 b5 16. Bxb5 Qa5 17. Ba4 cxd4 {Arnold, G (2390)-Ballow,J ICCF 2008 0-1 (35)}) 6... Bxc6 7. Nxc6 bxc6 8. d3 Rb8 9. O-O Bg7 10. c3 O-O 11. Nd2 Qd6 12. e4 dxe4 13. dxe4 e5 14. f5 Qc5+ 15. Kh1 Qb5 16. c4 Qc5 {Simonet,Y (1862)-Simonet,D (2010) ICCF 2020 0-1 (46)}) 5... Bg7 6. Bxc6+ bxc6 7. d4 O-O 8. b4 a5 9. a3 axb4 10. cxb4 c5 11. bxc5 Ne4 12. O-O Ba6 13. Re1 Nxc5 14. Qc2 Ne6 15. Bd2 c5 16. Nc3 {Brown,F (1907)-Gala,K (2181) ICCF 2012 0-1 (36)}) (4... a6 5. Bxc6+ bxc6 6. c3 Bb7 7. d4 e6 8. O-O Be7 9. Ne5 O-O 10. Qc2 c5 11. f5 exf5 12. Nd2 g6 13. Ndf3 Ne4 14. a4 a5 15. dxc5 Bxc5 16. Nd4 {Brown,F (1907)-Turaga,M ICCF 2012 0-1}) (4... Qd6 5. b3 (5. c4 a6 6. Bxc6+ Qxc6 7. Ne5 Qd6 8. cxd5 Nxd5 9. O-O Nb4 10. d4 c5 11. Na3 Qc7 12. dxc5 Qxc5 13. Bd2 Nc6 14. Rc1 Qd5 15. Nac4 Rb8 16. Nb6 Qd8 {Bruce,R (1862)-Ferreira,L (1774) ICCF 2015 1-0 (28)}) 5... Bd7 6. Ba3 Nb4 7. Bxd7+ Nxd7 8. O-O c5 9. d4 e6 10. c3 Na6 11. c4 Nc7 12. Qc1 Qa6 13. Nbd2 Be7 14. dxc5 O-O 15. b4 Qa4 16. Nb1 { Bruce,R (1908)-Maurizio,M (1657) ICCF 2015 0-1 (47)}) 5. O-O (5. Bxc6 Bxc6 6. b3 (6. d3 e6 (6... b6 7. b3 g6 8. Bb2 Bg7 9. O-O O-O 10. Qe1 Bb7 11. Nbd2 c5 12. Qh4 h5 13. Rae1 Ng4 14. h3 Nh6 15. Bxg7 Nf5 16. Qg5 Kxg7 17. Ne5 e6 18. Qxd8 {Ward,B (1687)-Cassell,R ICCF 2016 1/2 (25)}) 7. Bd2 Bc5 8. h3 Nd7 9. Qe2 h6 10. Bc3 Nf6 11. Qf2 Qe7 12. a3 b5 13. Nbd2 a5 14. Nb3 Bb6 15. Qd2 O-O 16. Bxa5 Bxa5 17. Nxa5 Bd7 {Arnold,G (2233)-Nilssen,T (1650) ICCF 2013 1-0 (31)}) 6... e6 7. Bb2 Be7 8. O-O (8. Ne5 Qd6 9. d3 O-O 10. Nd2 h6 11. O-O d4 12. Bxd4 Nd5 13. Ndf3 f6 14. Nxc6 Qxc6 15. a3 a6 16. c4 Bc5 17. cxd5 exd5 18. Rc1 Qb6 19. Bxc5 Qe6 {Gonet Boisson,G-Dejonckheere,D ICCF 2009 1-0 (47)}) 8... O-O 9. d3 (9. Ne5 Bb5 10. d3 Nd7 11. a4 Ba6 12. Qg4 f6 13. Qxe6+ Kh8 14. Ng6+ hxg6 15. Rf3 Rf7 16. Qxf7 Nf8 17. Rh3+ Nh7 18. Qxg6 Qg8 19. Ba3 c5 20. Nc3 Rd8 {Bruce,R (1912)-Gosling,D (1375) ICCF 2018 1-0 (25)}) 9... b6 10. Qe1 Bb7 11. Nbd2 Re8 12. Qg3 Kh8 13. Ng5 Rf8 14. Qh4 h6 15. e4 dxe4 16. Ndxe4 Kg8 {Ward,B (1670) -Clark,M (1796) ICCF 2015 0-1 (26)}) (5. b3 g6 6. Bb2 Bg7 7. d3 O-O 8. O-O e6 ( 8... a6 9. Bxc6 Bxc6 10. Qe1 Bd7 11. Nbd2 c5 12. a3 Qc7 13. Qh4 h5 14. e4 d4 15. h3 b5 16. Ne5 a5 17. Ndf3 Qd6 18. Nxd7 Qxd7 19. a4 b4 20. Rae1 {Oren,I (2309)-Lukasevicius,P (2203) ICCF 2007 1-0 (37)}) 9. Bxc6 Bxc6 10. Ne5 Bb5 11. a4 Ba6 12. b4 c6 13. Na3 Qe8 14. Bc3 Qc8 15. Qd2 b5 16. axb5 cxb5 {Elias,B (1618)-Golden,J ICCF 2009 1-0 (34)}) 5... e6 (5... Ne4 6. d3 Nf6 7. Nbd2 e6 8. Nb3 b6 9. a4 Ne7 10. Qe2 Bxb5 11. axb5 Ng6 12. e4 Be7 13. f5 Nf8 14. e5 N6d7 15. Nfd4 Nc5 16. Nc6 Qd7 17. Nbd4 {Darias Mateos,A (1842)-Carrillo Castaño,J ICCF 2012 1-0 (31)}) 6. b3 Be7 (6... Bd6 7. Bb2 Qe7 (7... O-O 8. a3 (8. Bxc6 Bxc6 9. Ne5 Bb5 10. d3 c5 11. Nd2 Bc6 12. Nxc6 bxc6 13. Qf3 Re8 14. Qg3 Be7 15. Nf3 c4 16. bxc4 dxc4 17. Ne5 cxd3 18. Nxc6 Qd7 19. Nxe7+ Qxe7 {Jan,P-Rice,R ICCF 2006 1-0 (35)}) 8... Re8 9. Bxc6 Bxc6 10. Ne5 Qe7 11. d3 Rad8 12. Nd2 Nd7 13. Nxc6 bxc6 14. Qg4 e5 15. Rfe1 Qf8 16. f5 e4 17. f6 g6 18. dxe4 Qh6 19. h3 { Nielsen,J (2007)-Kjeldsen,K (1642) ICCF 2011 1/2}) 8. d4 O-O 9. a3 Nd8 10. Bd3 Ne4 11. c4 c6 12. Nc3 f5 13. Ne5 Nf7 14. b4 Be8 15. Be2 Nf6 16. Qb3 dxc4 17. Bxc4 Nd5 18. Bc1 {Arnold,G (2308)-Akwei,L (2233) ICCF 2019 1/2 (49)}) (6... h5 7. Bb2 h4 8. a3 h3 9. g3 Bc5 10. Be2 Qe7 11. d4 Bb6 12. c4 dxc4 13. bxc4 Ba5 14. Ng5 O-O-O 15. Bf3 Ne8 16. Ne4 f5 17. Nc5 Nf6 18. Nb3 {Moser,M (1833) -Büktas,B (1857) ICCF 2011 0-1 (38)}) 7. Be2 (7. Bb2 a6 (7... O-O 8. Nc3 Re8 9. Ne5 Nxe5 10. fxe5 Bxb5 11. Nxb5 Nd7 12. d4 a6 13. Nc3 f5 14. Qf3 Rf8 15. Nxd5 exd5 16. Qxd5+ Kh8 17. Qxb7 Nb6 18. Qf3 Qd5 19. c4 {Crawshaw,R (1734)-Burton,S (1678) ICCF 2017 1/2 (28)}) 8. Be2 (8. Bxc6 Bxc6 9. Ne5 O-O (9... Bd7 10. d4 O-O 11. c4 c6 12. c5 Re8 13. Nd2 Rb8 14. Qc2 Bc8 15. b4 h6 16. a3 Nd7 17. Ndf3 Bf6 18. Qf2 Ra8 19. g3 Qc7 20. a4 Nxe5 21. Nxe5 {Rinaldi,M (1680)-Baldini,A (1777) ICCF 2014 1/2 (46)}) 10. Nxc6 bxc6 11. Nc3 Qd7 12. Na4 c5 13. Bxf6 gxf6 14. Qh5 Kh8 15. Rf3 Rg8 16. Qxf7 Rg7 17. Qh5 Rag8 18. g3 f5 19. Rd1 c4 { Bruce,R (1912)-Morton,P (1574) ICCF 2018 1-0 (35)}) 8... O-O 9. a3 h6 10. Ne5 Nxe5 11. fxe5 Ne4 12. Qe1 Bc5 13. d4 Be7 14. Nc3 c5 15. Nxe4 cxd4 16. Nf6+ Bxf6 17. exf6 e5 18. exd4 e4 {Alozy,F (1998)-Dejonckheere,D ICCF 2010 1-0 (46)}) 7... O-O 8. c4 a5 (8... d4 9. Nxd4 Nxd4 10. exd4 Bc6 11. Bb2 Be4 12. d3 Bc6 13. Nd2 b6 14. Nf3 Bb7 15. Ne5 Rc8 16. Rc1 c5 17. dxc5 Bxc5+ 18. d4 Bd6 19. g4 Qc7 20. Bf3 {Bruce,R (1941)-Clark,M (1625) ICCF 2019 1-0 (34)}) 9. Bb2 dxc4 10. bxc4 Be8 11. Nc3 Nb4 12. Ne5 Nd7 13. d4 Nb6 14. a3 Nc6 15. Nf3 {Slyusar,V (2161)-Lixa,A (1868) ICCF 2017 1-0 (37)}) (3... Bf5 4. Be2 (4. d3 e6 (4... c5 5. Be2 Nc6 6. O-O e6 7. Nc3 Bg6 8. Ne5 Nxe5 9. fxe5 Nd7 10. d4 Be7 11. Bd3 Rc8 12. Bxg6 hxg6 13. Rf2 f5 14. Qd3 a6 15. b3 Qc7 16. Bb2 {Bruce,R (1908)-Nigro Monasterios,N (1982) ICCF 2015 0-1 (58)}) (4... c6 5. Be2 Nbd7 6. O-O e6 7. Qe1 (7. b3 h6 8. Bb2 a5 9. c4 Bd6 10. Na3 O-O 11. Nc2 Bh7 12. Qe1 a4 13. Ne5 Be7 14. Qd2 Nxe5 15. Bxe5 Qb6 16. Rab1 Rfd8 17. Rb2 Rd7 18. Qc3 c5 {Heß,H (2317) -Garbar,A (2300) ICCF 2018 0-1 (69)}) 7... Bd6 8. Nc3 a5 9. Bd1 Be7 10. a4 O-O 11. e4 dxe4 12. dxe4 Bg6 13. Kh1 h6 14. Nd2 Qc7 15. g4 Rad8 16. Nb3 {McCartney, P (1900)-Látal,F (2182) ICCF 2020 1/2 (32)}) 5. g3 (5. Be2 Bd6 (5... h5 6. O-O h4 7. Nc3 h3 8. g3 Bg4 9. Bd2 c5 10. Ne5 Bxe2 11. Qxe2 Nfd7 12. Nf3 Qb6 13. f5 Be7 14. fxe6 fxe6 15. a4 a6 16. e4 d4 17. a5 {Lilleeng,A (2134)-Llorach Gracia, T (2059) ICCF 2010 1-0 (45)}) (5... Nc6 6. O-O Bd6 {0-1 (6) Deneuville,C (2203) -Jaeger,F (2103) ICCF 2010}) 6. O-O O-O 7. Nc3 h6 8. Nb5 Be7 9. Nbd4 Bh7 10. Ne5 c5 11. Ndf3 Ne8 12. b3 f6 13. Ng4 Nc6 14. Bb2 Nd6 15. Nf2 d4 16. Qc1 e5 { Ott,P (2152)-Arnold,G (2194) ICCF 2015 0-1 (39)}) 5... c5 6. Bg2 Nc6 7. O-O Bd6 8. Nc3 O-O 9. Qe2 Bg6 10. b3 (10. e4 c4 11. Kh1 Bc5 12. h3 h6 13. g4 Re8 14. a3 a6 15. e5 cxd3 16. cxd3 Nd7 17. Qd1 Rc8 18. d4 Ba7 19. Ne2 Bh7 20. b4 Ne7 21. Ra2 Qc7 {Kirk,T (1608)-Apshankar,O ICCF 2020 0-1 (35)}) 10... Rc8 11. Bb2 Re8 12. Nb5 Bb8 13. Ne5 Nxe5 14. fxe5 Nd7 15. h4 Nxe5 {Ponomarenko,V (2113) -Lyamtsev,V (2215) ICCF 2013 0-1 (32)}) (4. Qe2 e6 5. d3 c5 6. g3 Nc6 7. Bg2 Be7 8. O-O O-O 9. b3 Rc8 10. Bb2 b5 11. a4 c4 12. axb5 cxd3 13. cxd3 Nb4 14. Ne1 Qb6 15. Nc3 d4 {Akdag,M (2568)-Lins,T (2440) ICCF 2017 1/2 (31)}) (4. b3 g6 (4... Ng4 5. h3 Nf6 6. g4 Be4 7. d3 Bxf3 8. Qxf3 e6 9. Bb2 Nc6 10. Bg2 e5 11. fxe5 Nb4 12. exf6 d4 13. Qxb7 gxf6 14. Bc6+ Nxc6 15. Qxc6+ Ke7 16. Ba3+ { Elias,B (1752)-Lizardo,J ICCF 2010 1-0}) 5. Bb5+ c6 6. Bd3 Bxd3 7. cxd3 c5 8. O-O Bg7 9. Bb2 d4 10. Na3 O-O 11. exd4 Nd5 12. Ne5 cxd4 13. Bxd4 Nb4 14. Bc3 Nxd3 15. Qf3 Bxe5 {Müller,S (1979)-Laliga,O (2026) ICCF 2015 0-1 (43)}) (4. c3 c5 5. Bb5+ Nbd7 6. Bxd7+ Qxd7 7. d3 g6 8. h3 Bg7 9. O-O Qb5 10. Ne1 O-O 11. a4 Qa6 12. Na3 Rac8 13. g4 Bd7 14. Nf3 h5 15. g5 Ne8 {Brown,F (1907)-Delgado,L (2107) ICCF 2012 0-1 (26)}) 4... e6 (4... c5 5. O-O Nc6 6. Ne5 Qc7 7. Bb5 e6 8. b3 Bd6 9. Bb2 O-O 10. Bxc6 bxc6 11. d3 Ne8 12. Nd2 f6 13. Nef3 e5 14. e4 Bg4 15. fxe5 fxe5 16. h3 {Morelli,A-Nielsen,P (1778) ICCF 2008 1-0 (37)}) (4... h6 5. c4 e6 6. Qb3 Na6 7. cxd5 Nc5 8. Qb5+ c6 9. dxc6 a6 10. c7+ axb5 11. cxd8=Q+ Kxd8 12. Ne5 Rg8 13. Bd1 Nfd7 14. O-O Nxe5 15. fxe5 Nd3 16. Bc2 {Roynet,S (2121)-Khorunzhy,M (2213) ICCF 2017 1/2 (43)}) 5. O-O (5. b3 h5 (5... h6 6. O-O Be7 7. d3 a6 8. c4 O-O 9. Bb2 Re8 10. Ne5 dxc4 11. bxc4 Nfd7 12. Nxd7 Nxd7 13. Nd2 Bf6 14. Rb1 b6 15. Nb3 Qe7 16. Bc1 Bh7 17. e4 {Bruce,R (1960)-Sorokin,M (2116) ICCF 2017 1/2 (37)}) 6. Bb2 Nc6 7. O-O h4 8. Bb5 h3 9. g3 Bg4 10. d3 Qd6 11. Ba3 Qd7 12. Bxf8 Bxf3 13. Qxf3 Rxf8 14. Nd2 a6 15. Bxc6 Qxc6 16. e4 Qxc2 { Wetzenkircher,M-Modliba,F ICCF 2008 0-1 (29)}) (5. c4 Be7 (5... Nc6 6. O-O dxc4 7. Bxc4 Bd3 8. Bxd3 Qxd3 9. Nc3 Be7 10. Qb3 Rb8 11. Ne1 Qa6 12. d4 O-O 13. a3 Nb4 14. Nf3 Nbd5 15. Bd2 c5 16. Nxd5 exd5 17. dxc5 {Andreassen,E (2326)-Haug,K (2142) ICCF 2008 1/2 (27)}) 6. Ne5 Nbd7 7. O-O h6 8. d4 c6 9. Nc3 Ne4 10. Bd2 ( 10. Nxe4 Bxe4 11. b3 O-O 12. Bb2 a5 13. Nd3 Bd6 14. Nf2 Bh7 15. a4 Re8 16. Rc1 Qe7 17. Ng4 Nf6 18. Nxf6+ Qxf6 19. Bf3 Bf5 20. Qd2 Qg6 21. Bc3 Bc7 {Mengelkamp, B-Kolanek,R (2275) ICCF 2018 1/2 (43)}) 10... O-O 11. Rc1 Nxc3 12. Bxc3 a5 13. a4 Be4 14. Ng4 f5 15. Nf2 Nf6 16. b3 Ba3 {Roynet,S (1941)-Haase,F (1798) ICCF 2020 1/2 (67)}) (5. Nh4 Be7 6. Nxf5 exf5 7. Bf3 O-O 8. c4 c6 9. cxd5 cxd5 10. O-O Nc6 11. d4 Rc8 12. Bd2 Na5 13. Bxa5 Qxa5 14. Qb3 Rfd8 15. a3 Qa6 16. Nc3 Qe6 {Stapinski,R (1902)-Kirkov,T (2308) ICCF 2017 0-1 (45)}) 5... Be7 (5... Nbd7 6. d3 (6. d4 c5 7. c4 dxc4 8. Bxc4 Be7 9. d5 exd5 10. Bxd5 Qc7 11. Nc3 Nb6 12. Nh4 Bg4 13. Bf3 Rd8 14. Qe2 Be6 15. Qc2 Qc8 16. Qf2 O-O 17. e4 Qc7 { Roynet,S (1941)-Hjorth,J (1812) ICCF 2020 (39)}) 6... Bd6 (6... h6 7. Qe1 Bd6 8. b3 Qe7 9. Bb2 g5 10. Ne5 Rg8 11. Nd2 O-O-O 12. a4 a6 13. c4 gxf4 14. exf4 Bb4 15. Qc1 dxc4 16. Ndxc4 Nc5 17. Rd1 Nd5 18. d4 {Ward,B (1637)-Graham,O (2034) ICCF 2015 0-1}) 7. Nh4 O-O 8. Nd2 Qe7 9. Nb3 h6 10. Nxf5 exf5 11. Bf3 c5 12. Bd2 Rac8 13. Re1 Rfe8 14. a4 Qe6 15. c4 dxc4 16. Nd4 cxd4 17. exd4 { Bito,L (2138)-Bystrický st.,K (1852) ICCF 2017 1-0 (38)}) (5... Nc6 6. Nh4 (6. b3 Bc5 (6... d4 7. Ne5 Nxe5 8. fxe5 Nd7 9. exd4 Nxe5 10. Bb2 Nc6 11. Bb5 Be7 12. Qf3 O-O 13. Bxc6 bxc6 14. Qxc6 Bd6 15. d3 Qh4 16. g3 Qh5 17. Nc3 Rab8 18. Ne4 {Andreassen,E (2314)-Øvergaard,J (2206) ICCF 2006 1-0 (43)}) 7. Bb2 d4 8. Bb5 dxe3 9. d4 Bd6 10. Ne5 O-O 11. Nxc6 bxc6 12. Bxc6 Rb8 13. Qe2 Qc8 14. c4 Rb6 15. Bf3 Bxf4 16. Na3 e5 17. c5 Ra6 {Öunmaa,A (2096)-Müller,S (2112) ICCF 2010 0-1 (47)}) 6... Bg6 7. d4 Ne4 8. g3 Be7 9. Nxg6 hxg6 10. c4 Nf6 11. c5 Qd7 12. Nc3 Rb8 13. Rb1 Kf8 14. b4 a6 15. Bd2 Kg8 16. Bf3 b5 17. a4 {Roynet,S (1941)-Hjorth,J (1812) ICCF 2020 (44)}) (5... c5 6. c4 Nc6 7. Nh4 d4 8. Nxf5 exf5 9. Bf3 Rc8 10. d3 dxe3 11. Nc3 Be7 12. Bxe3 O-O 13. Qd2 Ng4 14. Bxg4 fxg4 15. Nd5 f5 16. Rae1 b6 17. Bf2 {Maltais,C-Jones,J ICCF 2013 1-0 (27)}) 6. c4 ( 6. Nh4 O-O 7. d3 Nc6 8. Nd2 a5 9. Nxf5 exf5 10. Nf3 Qd7 11. d4 Ne4 12. c4 a4 13. Nd2 Nd6 14. c5 Ne4 15. Nxe4 fxe4 16. Bb5 a3 17. bxa3 Qe6 {Bito,L (2000) -Korchut,A (2146) ICCF 2010 1/2}) 6... dxc4 (6... O-O 7. b3 c5 8. Ne5 h6 9. Bb2 Nfd7 10. Ng4 Nc6 11. cxd5 exd5 12. Nc3 Nb6 13. d4 Re8 14. Ne5 cxd4 15. exd4 Rc8 16. Kh1 Bb4 17. Rc1 a6 18. Bh5 {Roynet,S (2121)-Nozicka,V (2095) ICCF 2017 1/2 (51)}) 7. Ne5 (7. Qa4+ c6 8. Qxc4 h6 9. d3 O-O 10. Nc3 Bh7 11. e4 b5 12. Qb3 Qb6+ 13. Kh1 Nbd7 14. a4 a6 15. Qc2 Rac8 16. Bd2 Ng4 17. g3 c5 18. Nh4 Ngf6 { Roynet,S (2121)-Pallett,R (2145) ICCF 2017 1/2 (55)}) 7... O-O 8. Nxc4 Bd3 9. Ne5 Bxe2 10. Qxe2 Nbd7 11. b3 a5 12. Nc3 Bd6 13. Nd3 Re8 14. g4 a4 15. Rb1 { Lanzani,P (2227)-Csiba,T (2159) ICCF 2020 1/2}) (3... a6 4. Be2 Nc6 (4... c5 5. d3 (5. b3 g6 6. O-O Bg7 7. Ne5 O-O 8. Bb2 Qc7 9. Bf3 {1-0 (9) Alozy,F (1988) -Eeckhout,J (1738) ICCF 2010}) 5... Nc6 6. O-O g6 7. Nbd2 Bg7 8. Nb3 b6 9. c3 Bb7 10. Qe1 Qd6 11. h3 e5 12. fxe5 Nxe5 13. Nh2 O-O 14. Qg3 Rad8 15. d4 Ne4 { 0-1 (15) Armans,E-Plume,G ICCF 2005}) 5. O-O (5. Ne5 e6 6. O-O Be7 7. b3 O-O 8. Nxc6 bxc6 9. Bb2 c5 10. c4 c6 11. Bf3 dxc4 12. bxc4 Bb7 13. d3 Rb8 14. Na3 g6 15. Rb1 a5 16. Qd2 h5 {Alozy,F (1997)-Morlong,A ICCF 2010 1-0 (26)}) 5... Bg4 6. d3 Bxf3 7. Bxf3 e5 8. fxe5 Nxe5 9. d4 Nc6 10. a3 Be7 11. Nc3 O-O 12. Bd2 Qd7 13. Ne2 Bd6 14. Rc1 h6 15. c4 {Humbert,P-Dejonckheere,D ICCF 2009 1/2 (43)}) ( 3... Nbd7 4. Nc3 (4. c4 e6 5. Nc3 Be7 6. b3 c6 7. Be2 Ne4 8. Bb2 Nxc3 9. Bxc3 O-O 10. O-O Re8 11. Qc2 Nf6 12. c5 h6 13. Bd4 Qc7 14. Ne5 Nd7 15. Nxf7 Kxf7 { Popov,A (2241)-Dantas,A (1554) ICCF 2013 1-0}) 4... e6 (4... h6 5. d4 e6 6. Bd3 b6 7. O-O Bd6 8. e4 dxe4 9. Nxe4 O-O 10. Nxd6 cxd6 11. Qe1 Bb7 12. Bd2 Re8 13. Qe2 Bxf3 14. Qxf3 e5 15. fxe5 dxe5 16. Qg3 {Francescone,G-Tognola,P ICCF 2010 1-0 (32)}) 5. d4 Be7 6. Bd3 c5 7. O-O O-O 8. Ne5 cxd4 (8... c4 9. Be2 Nxe5 10. fxe5 Nd7 11. e4 Nb6 12. Bh5 f6 13. exf6 Bxf6 14. e5 Be7 15. Bf4 Bd7 16. Qg4 Kh8 17. Qh3 Bg5 18. Ne2 Kg8 19. Bg4 Bxf4 20. Nxf4 {Anda,H (2197)-McGahee,B ICCF 2013 1-0 (40)}) 9. exd4 Qb6 10. Kh1 Re8 11. a4 Nb8 12. g4 Nbd7 13. a5 Qd8 14. g5 Ne4 15. Nxe4 {Geus,A (2165)-Dantas,A (1705) ICCF 2010 1-0 (32)}) (3... c6 4. b3 (4. d4 Bf5 5. Bd3 e6 6. Bxf5 exf5 7. Qd3 g6 8. Ne5 Nbd7 9. O-O Bg7 10. Nd2 O-O 11. Ndf3 Re8 12. Ng5 Nxe5 13. fxe5 Nd7 14. e4 dxe4 15. Qb3 Qe7 {Schröder,W (1938)-Baldassare,S (2436) ICCF 2017 0-1 (25)}) (4. Be2 Bf5 5. b3 (5. O-O e6 6. b3 Be7 7. Bb2 O-O 8. Nd4 Nbd7 9. Nxf5 exf5 10. c4 Qc7 11. Bd3 Ne4 12. Qh5 g6 13. Qh6 Bf6 14. Bxf6 Ndxf6 15. Nc3 Rad8 16. Ne2 Ng4 {Voglimacci,N (1658) -Damarez,P ICCF 2012 0-1 (50)}) 5... Qa5 6. Bb2 Ng4 7. Bc3 Qd8 8. Nd4 Nh6 9. O-O e6 10. d3 Be7 11. Nd2 Bf6 12. Nxf5 Nxf5 13. Bxf6 Qxf6 14. Rf3 Qg6 15. Qe1 Nd7 {Rinaldi,M-Borrelli,M ICCF 2011 1-0 (37)}) 4... g6 5. Bb2 Bg7 6. Be2 O-O ( 6... c5 7. c4 d4 8. exd4 Nh5 9. g3 cxd4 10. d3 Nc6 11. Na3 Qb6 12. O-O O-O 13. Nc2 Rd8 14. Re1 Nf6 15. Bf1 a5 16. Bg2 Nd7 17. Ng5 Nc5 18. Ne4 {Rhodes, L-Chamaev,A ICCF 2010 0-1 (47)}) 7. O-O Nbd7 8. Ne5 Nxe5 9. fxe5 Ne8 10. d4 Bh6 11. Rf3 Ng7 12. Nd2 Nf5 13. e4 dxe4 14. Nxe4 Be6 15. Ng3 {Nachtigall,F (1906) -Vins,K (1741) ICCF 2015 1-0 (37)}) 4. b3 (4. b4 Bg7 (4... Bg4 5. Be2 (5. Bb2 e6 6. a3 Bg7 7. Be2 O-O 8. O-O Nbd7 9. d4 a5 10. Nbd2 Nb6 11. Ne5 Bxe2 12. Qxe2 axb4 13. axb4 Qe7 14. Qd3 Ne4 15. Nxe4 dxe4 16. Qb3 Nd5 {Wark,P (1800)-Unuk,R ICCF 2014 0-1 (27)}) (5. Nc3 Bg7 6. h3 Bxf3 7. Qxf3 Ne4 8. Bb2 e6 9. O-O-O Qd6 10. a3 f5 11. Nb5 Bxb2+ 12. Kxb2 Qb6 13. Nc3 Nd7 14. Nxe4 fxe4 15. Qe2 a6 16. h4 c5 {Bruce,R (1912)-Schelberg,M (1793) ICCF 2018 1/2 (35)}) 5... Nc6 (5... e6 6. Ne5 Bxe2 7. Qxe2 Nbd7 8. Bb2 Nxe5 9. Bxe5 c6 10. b5 Be7 11. a4 O-O 12. a5 Nd7 13. Bc3 Nb8 14. O-O Qd7 15. Na3 Qc7 16. bxc6 bxc6 17. d3 {McCartney,P (1900)-Deakin,C ICCF 2020 1/2 (37)}) 6. b5 Na5 7. d3 e6 8. O-O Bc5 9. Bd2 c6 10. Qe1 Bb6 11. a4 O-O 12. Kh1 Bc7 13. Nc3 b6 14. Ne5 Bxe2 15. Nxe2 Bxe5 16. fxe5 {Mengelkamp,B-Aannevik,B (1315) ICCF 2018 1-0}) (4... c6 5. Bb2 Bg7 6. Be2 Nbd7 7. O-O O-O 8. Qe1 (8. a4 Qc7 9. c4 dxc4 10. Bxc4 Nb6 11. Be5 Qd8 12. Be2 Nbd5 13. b5 cxb5 14. axb5 Ng4 15. Bxg7 Kxg7 16. Na3 Ngf6 17. Nc4 {Fagerbekk,E (2052)-Glørstad,T ICCF 2007 1-0 (43)}) 8... Re8 9. a4 a6 10. a5 b5 11. Ne5 Bb7 12. f5 Nxe5 13. Bxe5 Nd7 14. Bxg7 Kxg7 15. Nc3 e5 16. fxg6 {Hernández Delgado, J (1925)-Wilshusen,H (1464) ICCF 2019 1-0 (28)}) (4... e6 5. a3 Bg7 6. Bb2 b6 7. Bb5+ c6 8. Be2 O-O 9. O-O c5 10. Nc3 Bb7 11. bxc5 bxc5 12. Ne5 d4 13. Na2 Nc6 14. Nxc6 Bxc6 15. Bf3 Rb8 16. Rb1 {Serrajotto,M (2158)-Palladino,M (2242) ICCF 2018 0-1 (25)}) 5. Bb2 (5. Be2 O-O (5... Ne4 6. d4 (6. c3 a5 7. b5 c5 8. bxc6 Nxc6 9. O-O O-O 10. a4 Bg4 11. Ra3 Na7 12. d3 Nd6 13. Ra2 Qc7 14. Nd4 Bd7 15. Ba3 e6 16. c4 Rfe8 17. Nc3 dxc4 {Brandt,O-Rattinger,F ICCF 2005 0-1 (60)}) 6... O-O 7. a4 (7. O-O Nd7 (7... Bf5 8. c4 a5 9. b5 c6 10. a4 Nd7 11. bxc6 bxc6 12. cxd5 cxd5 13. Nh4 e6 14. Nxf5 exf5 15. Nd2 Nc3 16. Qe1 Nxe2+ 17. Qxe2 Nb6 18. Nf3 Re8 19. Bd2 {Fagerbekk,E (2257)-Orlovsky,I ICCF 2009 1/2 (55)}) 8. a4 c6 9. Ra3 a5 10. b5 cxb5 11. Bxb5 Nb6 12. Nbd2 Nd6 13. Bd3 Bf5 14. Bxf5 Nxf5 15. Re1 Qd7 16. c3 Rfc8 17. Ne5 Bxe5 18. fxe5 Nc4 {Elias,B-Wingo,M (1604) ICCF 2007 1/2 (35)}) 7... a5 8. b5 c5 9. Bb2 Qc7 10. O-O Nd7 11. Nbd2 cxd4 12. Bxd4 Bxd4 13. Nxd4 Nc3 14. Qe1 Nc5 15. Ra3 N3xa4 16. Qa1 Nb6 {Fagerbekk,E (2274) -Fagerström,B (2387) ICCF 2009 0-1 (53)}) (5... Qd6 6. Ba3 a6 7. d4 b5 8. O-O O-O 9. Bb2 Bf5 10. Ne5 Ne4 11. a3 Nd7 12. Nd2 Nb6 13. Nxe4 Bxe4 14. Bc3 Nc4 15. Nxc4 bxc4 16. Bf3 Bxf3 17. Qxf3 {Fagerbekk,E (2274)-Van Damme,L (2326) ICCF 2009 1/2 (31)}) 6. O-O a5 7. b5 Ne4 8. c3 c5 (8... Nd7 9. a4 e5 10. fxe5 Nxe5 11. d3 Nxf3+ 12. Bxf3 Nxc3 13. Nxc3 Bxc3 14. Ra2 Qd6 15. Qb3 d4 16. Qd5 Rd8 17. Qxd6 Rxd6 {Gonçalves,C (2023)-Gonzalez,B (2138) ICCF 2008 0-1 (35)}) 9. d3 Nxc3 10. Qd2 Nxe2+ 11. Qxe2 Bxa1 12. Na3 Bg4 13. Bd2 Bg7 14. h3 Bxf3 15. Qxf3 e6 16. h4 Qxh4 {Nelson,J (1816)-Vialet,T (1842) ICCF 2015 0-1 (30)}) 5... O-O (5... Bf5 6. Be2 Nbd7 7. O-O O-O 8. Nd4 Ne4 9. d3 Nd6 10. g4 Be6 11. Nd2 c5 12. Nxe6 fxe6 13. Bxg7 Kxg7 14. bxc5 Nxc5 15. c4 a6 16. d4 Nce4 17. c5 {Bruce,R (1941) -Jenkins,D ICCF 2019 1-0}) 6. Be2 (6. a4 Bf5 7. Be2 Nc6 8. b5 {1-0 (8) Humphreys,S (2157)-Demir,S (1987) ICCF 2010}) 6... Bg4 (6... c6 7. O-O (7. Qc1 a5 (7... Bg4 8. O-O Nbd7 9. a4 Re8 10. Nc3 Ne4 11. Nd4 Bxe2 12. Ncxe2 e5 13. Nf3 a5 14. Nxe5 axb4 15. Nxd7 Bxb2 16. Qxb2 Qxd7 17. d3 Nd6 18. Qxb4 Nf5 19. Rf2 {Kaminski,J (1994)-Zemlyanov,S (2064) ICCF 2009 1-0}) 8. b5 cxb5 9. Bxb5 Nc6 10. O-O Bf5 11. Na3 Qc7 12. Rb1 Rfc8 13. Ba4 Nb4 14. Be5 Qd8 15. Qb2 b5 16. Nxb5 Bxc2 17. Bxc2 Rxc2 18. Qb3 Ne4 {Kaminski,J (1964)-Bianchin,R (2176) ICCF 2010 1/2 (58)}) 7... a5 8. b5 (8. a3 axb4 9. axb4 Rxa1 10. Bxa1 Qb6 11. Bc3 Bg4 12. Qc1 Ne4 13. Bxg7 Kxg7 14. Qb2+ f6 15. c3 c5 16. Qa2 c4 17. Na3 Nc6 18. Qc2 Nd6 19. Qa2 Re8 {Sperandio,A (2010)-Krutov,A (2055) ICCF 2011 0-1 (33)}) 8... cxb5 9. Bxb5 Nc6 10. a4 (10. Nc3 Ne4 11. Rb1 Bxc3 12. Bxc3 Nxc3 13. dxc3 Bg4 14. Be2 Rb8 15. Qd3 e6 16. c4 Nb4 17. Qb3 dxc4 18. Bxc4 b5 19. Bd3 Bxf3 20. Rxf3 Qb6 21. Be4 Na6 {Bruce,R (1761)-Cooper,R (1987) ICCF 2014 0-1 (54)}) 10... Bg4 (10... Bf5 11. Na3 Rc8 12. d3 Qd6 13. Qd2 Ne4 14. dxe4 Bxb2 15. exf5 Bxa3 16. Rad1 Bc5 17. fxg6 hxg6 18. Kh1 Rfd8 19. c4 dxc4 20. Qe2 Qf6 21. Bxc4 e6 22. Ng5 {Kaminski,J (2019)-Skula,J (1963) ICCF 2013 1/2 (34)}) 11. Na3 (11. h3 Bd7 12. Na3 Rc8 13. d3 Nh5 14. Bxg7 Nxg7 15. Qd2 Nf5 16. c4 dxc4 17. Nxc4 Be8 18. g4 Nd6 19. Nxd6 Qxd6 20. Rac1 Rd8 21. d4 Nb4 22. Qe2 Bxb5 {Recasens Sánchez,J (2000)-Engel,P (2119) ICCF 2008 1/2 (27)}) 11... Ne4 12. Bxg7 Kxg7 13. d3 (13. Be2 f6 14. Nb5 e5 15. d3 Nc5 16. Nd2 Bxe2 17. Qxe2 Qd7 18. Qf2 {Fagerbekk,E (2257)-Solar,J (2371) ICCF 2009 1/2}) 13... Nd6 14. c4 Nxb5 15. cxb5 Nb4 16. Nc2 Qb6 17. Ncd4 Rac8 18. Qd2 {Kaminski,J (2019)-O'Reilly,S ICCF 2013 1-0 (52)} ) (6... a6 7. O-O (7. a4 Qd6 8. b5 axb5 9. axb5 Rxa1 10. Bxa1 Be6 11. Be5 Qb6 12. Bd4 {1/2 (12) Fagerbekk,E-Cantelli,A ICCF 2007}) (7. a3 Nbd7 8. O-O h6 9. d3 c5 10. c4 cxb4 11. axb4 Qb6 12. Qd2 dxc4 13. Bd4 c3 14. Nxc3 Qxb4 15. Rfb1 Qd6 16. Be5 Qc5 17. d4 Qc6 18. d5 Qc5 {Brailsford,J (2242)-Greene,S (2359) ICCF 2007 1-0 (53)}) (7. Ne5 Bf5 (7... Nbd7 8. d4 c6 9. Nd2 a5 10. b5 cxb5 11. Bxb5 Nxe5 12. dxe5 Ng4 13. Qe2 f6 14. h3 Nh6 15. exf6 Bxf6 16. Bxf6 exf6 17. O-O Nf5 18. Rfe1 Qc7 19. Rac1 {Heß,H (2355)-Gricar,I (2076) ICCF 2007 1-0 (36)} ) 8. O-O Nfd7 9. d4 Nb6 10. a4 f6 11. Nf3 Nc6 12. a5 Nc8 13. c4 e6 14. Nfd2 Nd6 15. Qb3 Ne7 16. Nc3 Qd7 17. cxd5 exd5 18. Nxd5 Nxd5 {Heß,H (2339)-Meincke,A ICCF 2009 1/2 (53)}) 7... Nc6 8. a3 (8. c3 Qd6 9. a4 Bg4 10. Na3 (10. d3 Bxf3 ( 10... e5 11. fxe5 Nxe5 12. Nxe5 Bxe2 13. Qxe2 Qxe5 14. c4 Qd6 15. c5 Qe6 16. Na3 Nh5 17. Rae1 Qd7 18. Bxg7 Nxg7 19. a5 Rae8 20. Nc2 Ne6 21. Rf6 d4 22. e4 { Fister,B (2263)-Jánosi,E (2335) ICCF 2009 1/2 (40)}) 11. Rxf3 e5 12. d4 exd4 13. exd4 Rfe8 14. Nd2 Ne4 15. Nxe4 dxe4 16. Rf2 Ne7 17. Bc4 Nd5 18. g3 c6 19. Bb3 Kh8 20. Qc2 f5 21. a5 Rad8 {Fister,B (2263)-Fenes,L (2439) ICCF 2009 1/2 (61)}) 10... Ne4 11. Qc2 Qf6 12. Rfb1 Qe6 13. b5 axb5 14. Nxb5 Rfc8 15. c4 Nb4 16. Qd1 Bxb2 17. Rxb2 c5 18. cxd5 Nxd5 19. Qb3 Bxf3 {Kaminski,J (1999)-Rabo,K (1980) ICCF 2013 1-0 (59)}) 8... Bf5 9. d3 (9. Bd3 Qd7 (9... Bg4 10. Qe1 Bxf3 11. Rxf3 e5 12. fxe5 Ng4 13. Be2 Bxe5 14. Bxe5 Ngxe5 15. Rf4 d4 16. Qf2 g5 17. Rf5 f6 18. Kh1 h6 19. e4 Qd6 20. Qg1 a5 21. b5 {Puertas Covarrubias,F-Bogun,O ICCF 2007 0-1 (53)}) 10. Bxf5 Qxf5 11. d3 Ng4 12. Bxg7 Kxg7 13. Qe2 Qe6 14. Re1 Qd6 15. Nbd2 e5 16. h3 Nf6 17. fxe5 Nxe5 18. Nxe5 Qxe5 19. Rab1 Rfe8 20. Qf2 Qd6 {Moser,M (1833)-Krause,M (2121) ICCF 2011 1/2 (57)}) (9. Qc1 Qd7 10. d3 Rfd8 11. Nbd2 Ng4 12. Bxg7 Kxg7 13. Nb3 Qe6 14. e4 dxe4 15. Nc5 Qd6 16. dxe4 Nd4 17. Bd1 Bc8 18. h3 Nxf3+ 19. Bxf3 Qd4+ 20. Kh1 h5 {Ralle,P (2249)-Gamant,G (2072) ICCF 2017 1-0 (42)}) (9. Ne5 Nxe5 10. Bxe5 Qd7 11. d3 Rfc8 12. Qd2 c5 13. Nc3 Be6 14. Bf3 d4 15. Nd1 Bg4 16. bxc5 Bxf3 17. Rxf3 dxe3 18. Nxe3 Rxc5 19. Rd1 b5 20. Qb4 Rac8 {Kaminski,J-White,B ICCF 2007 1/2 (66)}) (9. d4 Qd7 10. Nc3 Rad8 11. Bd3 Ne4 12. Qe2 b5 13. Qe1 Rfe8 14. Ne5 Nxe5 15. fxe5 f6 16. Nxe4 dxe4 17. exf6 exf6 18. Be2 Be6 19. a4 c6 20. c3 f5 {Serrajotto,M (2202) -Mohanakrishnan,B (1932) ICCF 2012 1/2}) (9. c4 dxc4 10. Bxc4 Bd3 11. Bxd3 Qxd3 12. Ne1 Qf5 13. d4 a5 14. Qb3 Qd5 15. Qxd5 Nxd5 16. b5 Na7 17. Nc2 Nxb5 18. e4 {Renard,S-Flecher,J (1930) ICCF 2015 0-1 (30)}) 9... Qd6 10. Nd4 (10. h3 Nh5 11. Bxg7 Nxg7 12. Qe1 e5 13. fxe5 Nxe5 14. Nbd2 Be6 15. Nd4 Rae8 16. Qf2 Nf5 17. Rae1 Nc6 18. Nxf5 Bxf5 19. Nb3 b6 20. Qf4 Re7 21. g4 Be6 {Torrijos Alhambra,J-Mirás García,E (1684) ICCF 2008 0-1 (53)}) 10... Nxd4 11. Bxd4 Ne8 12. c3 a5 13. Bxg7 Nxg7 14. Nd2 axb4 15. axb4 e5 16. Rxa8 Rxa8 17. e4 exf4 18. exf5 {Darias Mateos,A (1842)-Bernad Suárez,A (2105) ICCF 2012 0-1 (30)}) (6... a5 7. b5 c5 (7... Bg4 8. O-O (8. Ne5 Bf5 9. O-O c6 10. d4 cxb5 11. Bxb5 Ne4 12. Nd2 Nd6 13. Bd3 f6 14. Nef3 Nc6 15. Qe2 e6 16. Ba3 Bxd3 17. Qxd3 Rf7 18. c4 dxc4 19. Nxc4 Nxc4 {Bergmann,M-Burri,P (2113) ICCF 2006 1/2 (43)}) 8... c6 ( 8... a4 9. Na3 Qd6 10. c4 e6 11. Ne5 Bxe2 12. Qxe2 c5 13. bxc6 bxc6 14. Rac1 Rc8 15. cxd5 exd5 16. Nb5 Qd8 17. Nd4 c5 18. Ndf3 h6 19. d3 Nbd7 20. Bc3 { Oren,I (2309)-Anderson,B (2346) ICCF 2007 1/2 (26)}) 9. Na3 Qd6 10. c4 Ne4 11. Bxg7 Kxg7 12. Qc1 Nd7 13. d3 Nef6 14. bxc6 bxc6 15. cxd5 cxd5 16. Nb5 Qb6 17. Rb1 Rfc8 18. Qd2 Rab8 19. Nfd4 {Heß,H (2328)-Almeida,R (2356) ICCF 2013 1/2 (28)}) (7... a4 8. O-O Nbd7 9. c4 (9. Na3 Nc5 10. Ne5 Nfe4 11. Bf3 f6 12. d4 Nd7 13. Nd3 c6 14. Qe1 f5 15. Qb4 Ndf6 16. Nc5 g5 17. Bxe4 fxe4 18. bxc6 bxc6 19. fxg5 Ng4 20. Rxf8+ Bxf8 {Harding,T (2364)-Brotherton,T (1945) ICCF 2011 0-1 (36)}) 9... dxc4 10. Na3 Nc5 11. Nxc4 Bf5 12. Bd4 Ne6 13. Be5 Qd5 14. Rc1 Bd3 15. Bxd3 Qxd3 16. b6 c5 17. Rc3 Qe4 18. d3 Qc6 19. Rc1 {Borrelli, S-Babasyan,A ICCF 2012 1/2 (48)}) (7... Nbd7 8. O-O Nc5 9. c4 dxc4 (9... Bg4 10. cxd5 Nxd5 11. Bxg7 Kxg7 12. Qc1 Ne4 13. Qc2 Ndf6 14. d3 Nd6 15. Nc3 Nf5 16. Qd2 Qd6 17. Rac1 Rfd8 18. d4 h5 19. h3 Bxf3 20. Bxf3 Qb6 21. g4 {Heß,H (2321) -Krause,M (2131) ICCF 2010 1-0 (29)}) 10. Bxc4 Be6 11. Bxe6 Nxe6 12. Qc2 Qd7 13. a4 Rfd8 14. f5 gxf5 15. Ne5 Qd5 16. Qxf5 Nf8 17. Qc2 Ng6 18. Nf3 Qe4 19. Rc1 {Pisani,C (2139)-Almeida,R (2233) ICCF 2016 1/2 (37)}) (7... c6 8. a4 Nbd7 (8... cxb5 9. axb5 Nbd7 10. O-O Qc7 11. Na3 b6 12. c4 Bb7 13. cxd5 Rfc8 14. Rc1 Qd6 15. Nc4 Qxd5 16. Qa4 Nc5 17. Qa3 Qd8 18. d3 a4 19. Nfd2 h6 20. f5 { Harangus,E (1939)-Castor,E (1875) ICCF 2010 0-1 (51)}) 9. c4 Nc5 10. Ne5 dxc4 11. Bxc4 cxb5 12. Bxb5 Bf5 13. d4 Nce4 14. O-O Nd6 15. Bd3 Nd5 16. Qe2 Qb6 17. Ba3 Rfc8 18. Ra2 Qb3 19. Bxd6 {Velker,W (2162)-Gonzalez,B (2149) ICCF 2007 0-1 (46)}) (7... Bf5 8. a4 c5 9. O-O Nbd7 10. d3 Qc7 (10... Qb6 11. Nh4 Bg4 12. Re1 Bxe2 13. Qxe2 Rac8 14. Nd2 c4 15. Bd4 cxd3 16. cxd3 Nc5 17. Nhf3 Nfd7 18. Bxg7 Kxg7 19. d4 Ne4 20. Nxe4 dxe4 21. Ne5 Nxe5 22. fxe5 {Rhodes,J (2402)-Klausen,T (2472) ICCF 2007 1/2 (27)}) 11. Nh4 Be6 12. Qe1 Ne8 13. Bxg7 Nxg7 14. e4 Nf6 15. e5 Nd7 16. Bf3 {1/2 (16) Fagerbekk,E (2052)-Høibraaten,T ICCF 2007}) 8. bxc6 (8. O-O Nbd7 (8... Bg4 9. a4 Nbd7 10. Ng5 h6 11. Bxg4 hxg5 12. Bxd7 Qxd7 13. fxg5 Ne4 14. Bxg7 Kxg7 15. h4 Rh8 16. Qe1 Nd6 17. Qf2 Qg4 18. Qf4 Rxh4 19. Qe5+ Kg8 20. Nc3 {Heß,H (2355)-Schwarte,J (2152) ICCF 2007 1/2 (53)}) 9. a4 (9. c4 Nb6 10. Na3 Bf5 11. Rc1 Rc8 (11... dxc4 12. Nxc4 Nxc4 13. Bxc4 Ne4 14. Bxg7 Kxg7 15. a4 Bg4 16. d3 Nd6 17. Ba2 Rc8 18. h3 Bxf3 19. Qxf3 e6 20. e4 b6 21. Qe3 Kg8 22. Rc2 Qe7 23. g4 {Jung,R-Kazmierczuk,Z (2048) ICCF 2013 1/2 (42)}) 12. Be5 Qd7 13. Qb3 Rfd8 14. Qb2 Na4 15. Qb3 Nb6 16. Rfd1 h6 17. Bc3 Qc7 18. Bxa5 d4 19. exd4 Ra8 20. Bxb6 Qxb6 {Jan,P (2195)-Haak,G (2195) ICCF 2009 1-0 (47)}) 9... Nb6 10. Be5 Nbd7 11. Bb2 Nb6 12. Be5 Nbd7 {1/2 (12) Nielsen,J (2004)-Petruzzelli,R (1991) ICCF 2008}) (8. c4 b6 9. cxd5 Bb7 10. O-O Nbd7 11. Qc1 Qc7 12. d3 Nxd5 13. Bxg7 Kxg7 14. Na3 Rfe8 15. Qb2+ f6 16. Nc4 Rad8 17. g3 e6 18. e4 Ne7 19. a4 Kg8 {Welti,M (2079)-Strebel,P (2164) ICCF 2018 1-0 (56)}) 8... bxc6 (8... Nxc6 9. Na3 Bf5 (9... Qb6 10. Rb1 Nb4 11. O-O Bf5 12. Nh4 Bd7 13. Bd4 Qc7 14. c3 Nc6 15. Bb6 Qb8 16. Nb5 Rc8 17. a4 Ne4 18. Bd3 h6 19. Qe1 Nd6 20. e4 dxe4 21. Bxe4 {Fister,B (2281)-Hervet,G (2357) ICCF 2009 1-0 (55)}) 10. Rb1 Qd7 11. O-O Rfc8 12. Bb5 Qd6 13. Ba4 Ng4 14. Qc1 Bxb2 15. Qxb2 Qc5 16. Nb5 Qc4 17. Qb3 Qxb3 18. Bxb3 Nb4 19. a3 Nxc2 20. Rb2 {Kaminski,J (1964) -Reichert,T (2326) ICCF 2010 0-1 (61)}) 9. O-O Nbd7 (9... Qb6 10. Qc1 Bg4 11. Na3 Nbd7 12. Rb1 Qc7 13. c4 Rfc8 14. d3 Rab8 15. h3 Bxf3 16. Bxf3 Qd6 17. Bd4 Ne8 18. Rxb8 Rxb8 19. c5 Qc7 20. Nc2 e6 21. e4 {Bellette,A (2194)-Ivanoff,G (2029) ICCF 2006 1-0 (33)}) 10. Na3 Ne8 11. Bxg7 Nxg7 12. c4 Nf6 13. cxd5 cxd5 14. Ne5 Ba6 15. Rc1 Qd6 16. Nb5 {1-0 (16) Kaminski,J (2014)-Varonen,H (2053) ICCF 2011}) (6... Qd6 7. a3 (7. b5 a6 8. Be5 Qd8 9. a4 Nbd7 10. Bb2 axb5 11. axb5 Rxa1 12. Bxa1 Nc5 13. O-O Bf5 14. Be5 Qd7 15. Nd4 Bg4 16. Bxg4 Nxg4 17. Bxg7 Kxg7 18. Nc3 Nf6 {Geus,A-Pascoal,J ICCF 2005 1/2 (38)}) 7... a5 (7... a6 8. O-O Nc6 9. Be5 Qd8 10. d4 Nxe5 11. Nxe5 Ne4 12. c4 c6 13. c5 f6 14. Nd3 e5 15. Bf3 exd4 16. exd4 Bf5 17. Ra2 Qc7 18. Re2 Rae8 19. Qb3 {Gonçalves,C (1918) -Corujedo Hernández,R (2451) ICCF 2006 1/2 (35)}) (7... c6 8. c4 dxc4 9. Bxc4 Bg4 10. O-O Nd5 11. Bxg7 Kxg7 12. Qc2 Nd7 13. Nd4 e5 14. fxe5 Nxe5 15. Bxd5 cxd5 16. Nc3 Bd7 17. Rf4 Rac8 18. Raf1 f6 19. h3 {Brotherton,T (2185) -Wieringen,C (2275) ICCF 2018 1/2 (38)}) 8. b5 (8. O-O Nbd7 9. b5 c6 10. Be5 Qc5 11. Bd4 Qd6 12. Be5 Qc5 {1/2 (12) Maltais,C (2245)-Gerhards,G (2299) ICCF 2019}) 8... Bg4 9. O-O Bxf3 10. Bxf3 Nbd7 11. a4 c5 12. c4 e5 13. Bxd5 Nxd5 14. cxd5 exf4 15. Bxg7 Kxg7 16. Rxf4 Qxd5 17. Nc3 Qd3 18. Qc1 {Tyulenko,Y (2449) -Eremin,N (2260) ICCF 2014 1/2 (26)}) (6... Nc6 7. a3 (7. b5 Na5 8. a4 c5 9. O-O d4 10. exd4 Nd5 11. Nc3 Nxf4 12. dxc5 Bf5 13. Kh1 e5 14. d3 Rc8 15. Qd2 Re8 16. Rae1 Rxc5 17. Bd1 b6 18. Ne4 Bxe4 {Bruce,R (1971)-Peerdeman,N (2040) ICCF 2017 1/2 (49)}) 7... e5 8. b5 e4 9. bxc6 exf3 10. Bxf3 bxc6 11. O-O Re8 12. Re1 Rb8 13. Bd4 Ne4 14. Bxg7 Kxg7 15. Bxe4 Rxe4 16. d4 Qe7 17. Qd2 Bf5 18. Nc3 { Heß,H (2314)-Plas,R (2324) ICCF 2016 1/2}) (6... b6 7. O-O Bb7 8. Na3 Nbd7 9. Rb1 c5 10. bxc5 Nxc5 11. Nb5 a6 12. Nbd4 Rc8 13. f5 Nfe4 14. Qe1 e5 15. fxe6 fxe6 16. Nb3 Bxb2 17. Nxc5 Nxc5 18. Rxb2 {Egan,M (2281)-Sladek,V (1948) ICCF 2012 1/2 (33)}) (6... Nbd7 7. O-O c5 8. a3 b6 9. c4 dxc4 10. Bxc4 a6 11. b5 axb5 12. Bxb5 Ba6 13. Nc3 Ne4 14. Bxa6 Rxa6 15. Qb3 Nd6 16. e4 c4 17. Qc2 Nc5 18. e5 {Hoynck van Papendrecht,F (2174)-Evstigneev,S (2274) ICCF 2010 1/2 (57)} ) (6... Bf5 7. O-O Qc8 8. Nd4 Bd7 9. a4 a5 10. b5 c5 11. Nf3 Bf5 12. c4 Rd8 13. cxd5 Nbd7 14. Nc3 Nb6 15. Qb3 e6 16. dxe6 Bxe6 17. Qc2 Bf5 18. Qc1 {Fagerbekk, E-Torgersen,T (2049) ICCF 2007 1-0 (47)}) 7. O-O Nbd7 (7... c6 8. a4 (8. Nc3 Qd6 (8... Ne4 9. Qe1 Nd7 10. Ne5 Nxe5 11. fxe5 Bxe2 12. Nxe2 Qb6 13. a3 f6 14. d3 {1/2 (14) Fagerbekk,E-Kverndal,L (2029) ICCF 2007}) (8... Nbd7 9. a4 Ne4 10. Nd4 Bxe2 11. Qxe2 Nd6 12. a5 e5 13. fxe5 Nxe5 14. d3 Re8 {Rhodes,J (2383) -Grifoll Miró,J (2240) ICCF 2006 1/2 (77)}) 9. Rb1 Nbd7 10. b5 c5 11. Na4 Rac8 12. h3 Bxf3 13. Bxf3 e5 14. fxe5 Nxe5 15. Bxe5 Qxe5 16. b6 a6 17. c4 Rfd8 18. Qc2 Qe7 19. Rb3 Ne4 {Rhodes,J (2413)-Pavlikov,A (2212) ICCF 2008 1/2 (46)}) 8... Nbd7 (8... a5 9. b5 Nbd7 10. c4 cxb5 11. axb5 Rc8 12. Bc3 b6 13. Na3 e6 14. Nd4 Bxe2 15. Qxe2 Ne4 16. Bb2 Qc7 17. d3 Nd6 18. Nc6 Rfe8 19. Rfc1 Bxb2 20. Qxb2 {Fagerbekk,E (2292)-Torgersen,T (2090) ICCF 2015 1/2 (32)}) (8... Qd6 9. b5 Ne4 (9... Nbd7 10. Be5 Qc5 11. Bd4 Qd6 12. Be5 Qb4 13. bxc6 bxc6 14. Nd4 Bxe2 15. Qxe2 Rac8 16. Nc3 Nxe5 17. fxe5 Ne4 18. Nxe4 dxe4 19. Qg4 c5 20. Nb5 Bxe5 21. c3 {Darias Mateos,A (1842)-Piera i Arbat,J (1840) ICCF 2012 0-1 (42)}) 10. Bxg7 (10. Be5 Qb4 11. c3 Qa5 12. c4 Nd7 13. Bxg7 Kxg7 14. d3 Nd6 15. bxc6 bxc6 16. cxd5 cxd5 17. Nd4 Bxe2 18. Qxe2 Rfe8 19. Nd2 e5 20. fxe5 Nxe5 21. N2f3 Ng4 {Jung,R (2272)-Daatselaar,J (2171) ICCF 2016 1/2}) 10... Kxg7 11. d3 Nf6 12. Nbd2 Nbd7 13. c4 Bxf3 14. Rxf3 cxb5 15. axb5 a6 16. Rb1 Rfc8 17. bxa6 Qxa6 18. Qe1 Qc6 19. Rf2 Rab8 20. g4 {Lindqvist,B (2382)-Kochemasov,A (2322) ICCF 2007 1/2}) 9. Na3 (9. a5 e6 (9... Qc7 10. Qc1 (10. d3 Bxf3 11. Bxf3 e5 12. Qd2 Rfe8 13. Nc3 Rad8 14. Rab1 Re6 15. g3 Ne8 16. e4 d4 17. Ne2 c5 18. bxc5 Ra6 19. Ba3 Nxc5 20. Bb4 Na4 21. fxe5 Bxe5 {Fagerbekk,E (2182)-Khokhlov,I (2338) ICCF 2011 0-1 (73)}) (10. Bd3 Qd6 11. Bc3 Rae8 12. Be2 Bxf3 13. gxf3 e5 14. fxe5 Nxe5 15. Kh1 Qe7 16. Rf2 Ned7 17. Rg2 Nh5 18. Bxg7 Nxg7 19. c3 Nf5 20. Na3 a6 21. Nc2 Kh8 {Fister,B (2088)-Cinca,D (2275) ICCF 2018 1-0 (30)}) (10. d4 Qd6 11. Qe1 Ne4 12. c4 b6 13. Ng5 Bxe2 14. Nxe4 dxe4 15. Qxe2 Qxb4 16. Qc2 bxa5 17. Nd2 f5 18. Ba3 Qb8 19. Bxe7 Re8 20. Bf8 Bxf8 21. c5 Nf6 {Roynet,S (2168) -Urpilainen,E (2076) ICCF 2019 0-1}) 10... Rfe8 11. d4 b6 12. c4 bxa5 13. Rxa5 dxc4 14. Bc3 Reb8 15. Bxc4 Bxf3 16. Rxf3 e6 17. Nd2 Bf8 18. e4 Bxb4 19. Ra6 Bxc3 20. Qxc3 c5 21. Bf1 {Slyusar,V (2287)-Babcock,R (1978) ICCF 2018 0-1 (77)} ) 10. c4 (10. d3 Bxf3 11. Bxf3 Qc7 12. d4 Ne4 13. Bxe4 dxe4 14. c4 Rac8 15. Qb3 a6 16. Nc3 f5 17. Rac1 Nf6 18. Na4 Rfe8 19. Nb6 Rcd8 20. b5 g5 21. bxa6 bxa6 { Rhodes,J (2402)-Asquith,J (2446) ICCF 2007 1/2 (42)}) (10. Ne5 Nxe5 11. fxe5 Bxe2 12. Qxe2 Nd7 13. d4 f6 14. exf6 Rxf6 15. Nd2 Qe7 16. Rfb1 e5 17. b5 Re6 18. bxc6 bxc6 19. dxe5 {1/2 (19) Malnar,A (2428)-Klauner,T (2439) ICCF 2020}) ( 10. d4 Qe7 11. c3 Ne4 12. Nbd2 Ndf6 13. h3 Nxd2 14. Qxd2 {1/2 (14) Tyulenko,Y (2449)-Schmitz,A (2383) ICCF 2014}) (10. Nd4 Bxe2 11. Qxe2 Re8 12. Nf3 Qe7 13. Bc3 b5 14. d3 a6 15. Nbd2 c5 16. bxc5 Nxc5 17. Nb3 Na4 18. Bd4 Rac8 19. Qd2 Nd7 20. Bxg7 Kxg7 21. Qf2 Ndc5 {Vestergård,S (2268)-Leal,P (2321) ICCF 2007 1/2 (36)}) 10... dxc4 11. Qc1 (11. Bxc4 Qe7 12. Qb3 Bxf3 13. Rxf3 Rfd8 14. d4 b5 15. Bf1 Nd5 16. Ba3 Rac8 17. Nd2 N7f6 18. h3 Nh5 19. Rc1 f5 20. g4 Nhf6 21. Rg3 a6 22. Kh1 Ne8 {Harangus,E (1911)-Levandovska,V ICCF 2011 1/2 (25)}) 11... e5 12. fxe5 Nd5 13. e6 Bxf3 14. Rxf3 fxe6 15. Bxg7 {1/2 (15) Engelen,J (2339) -Seryakov,O (2290) ICCF 2015}) (9. h3 Bxf3 10. Bxf3 Re8 11. d4 a5 12. c3 Qb6 13. bxa5 Qxa5 14. Nd2 Nb6 15. Nb3 Qa7 16. Qc2 Nc4 17. Rfe1 Qb6 18. Ra2 e6 19. Nd2 Nxd2 20. Qxd2 Ra5 {Fagerbekk,E (2274)-Rogetzer,K (2451) ICCF 2009 0-1 (51)} ) 9... Qb6 (9... Bxf3 10. Bxf3 Re8 11. c4 (11. d4 Ne4 12. Bxe4 dxe4 13. Nc4 Nb6 14. Na5 Nd5 15. Qe1 Qb6 16. c3 e6 17. Bc1 Rac8 18. Bd2 Bf8 19. Nc4 Qc7 20. Qb1 f5 21. Ne5 b5 22. Rc1 Bd6 {Heß,H (2339)-Gronemann,J (2222) ICCF 2009 1/2 (31)}) 11... e5 12. f5 (12. cxd5 cxd5 13. a5 exf4 14. exf4 Rc8 15. Nb5 Qe7 16. Qb3 Rc4 17. Bxd5 Rxb4 18. Bxf7+ Kh8 19. Qc3 Rxb5 20. Bxe8 Qxe8 21. Rab1 Qd8 22. Rfc1 Nf8 23. Qc4 Rd5 {Williamson,D (1947)-Burridge,R (2016) ICCF 2014 1/2 (31)}) 12... e4 13. Be2 g5 14. Rc1 Qe7 15. b5 a6 16. bxa6 bxa6 17. cxd5 cxd5 18. Nc2 Rec8 19. Ba3 Qd8 20. Nd4 Ne5 21. Rxc8 {Malnar,A (2245)-Urpilainen,E (2241) ICCF 2007 1-0 (47)}) (9... e6 10. c4 Qe7 11. Qb3 a5 12. bxa5 Rfe8 13. Nc2 Nc5 14. Qb4 dxc4 15. Ba3 Nfd7 16. Qxc4 Bxa1 17. Rxa1 e5 18. fxe5 Qe6 19. Bxc5 Qxc4 20. Bxc4 Nxc5 21. d4 {Bellette,A (2156)-Hoshino,E ICCF 2006 1/2 (50)}) (9... a5 10. b5 c5 11. c4 Nb6 12. Qb3 e6 13. Rae1 Qe7 14. Be5 Rfd8 15. d3 Bxf3 16. Bxf3 Ne8 17. Rf2 Bxe5 18. fxe5 Ng7 19. Qc2 Nf5 20. g3 d4 21. exd4 {Kaminski,J (1895) -Marx,P (1900) ICCF 2019 0-1 (50)}) (9... Qc7 10. c4 dxc4 11. Nxc4 Rad8 12. Rc1 Ne8 13. Bxg7 Nxg7 14. d4 Nf6 15. b5 cxb5 16. axb5 Nf5 17. Qd3 Nd6 18. b6 Qb8 19. Qa3 axb6 20. Nxb6 Nf5 21. Rb1 {Oren,I (2309)-Geißler,W (2316) ICCF 2007 1/ 2 (35)}) 10. Bc3 (10. Rb1 Qxb4 11. Bxf6 Qxa3 12. Bxg7 Kxg7 13. Rxb7 Rfb8 14. Qb1 Bxf3 15. Bxf3 Qxa4 16. Qb2+ Kg8 17. Rxb8+ Rxb8 18. Qc3 Qb5 19. Qa3 Qc5 20. Qxc5 {1-0 (20) Egan,M (2281)-Graham,S (2333) ICCF 2012}) (10. b5 Ne4 (10... a6 11. c4 axb5 12. cxb5 (12. axb5 Ne4 13. Bxg7 Kxg7 14. Qc2 Rfc8 15. bxc6 bxc6 16. Rfb1 Qc5 17. Qc1 Rcb8 18. Rxb8 Rxb8 19. d3 Nef6 20. d4 Qb4 21. Rb1 Qa5 22. Rxb8 Nxb8 23. c5 Bf5 {O'Connell,C (2399)-Waller,A (2238) ICCF 2015 1/2 (33)}) 12... Rfc8 13. h3 Bxf3 14. Rxf3 Ne4 15. Bxg7 Kxg7 16. Qc2 cxb5 17. Qb2+ Qf6 18. Qxf6+ Ndxf6 19. Bxb5 Nxd2 20. Rf2 Nfe4 21. Re2 Rc3 22. Nb1 {LeSavouroux,H-Ould Ahmed, S (2278) ICCF 2008 0-1}) 11. Bxg7 Kxg7 12. Nd4 (12. c4 Qa5 13. d3 Nc3 14. Qd2 Nxe2+ 15. Qxe2 Rac8 16. Qb2+ f6 17. Nd4 Nc5 18. Qc2 Bd7 19. Nb3 Nxb3 20. Qxb3 Be6 21. Rfc1 cxb5 22. Qxb5 Qd2 23. Qxb7 Qxe3+ {Lannoy,J-Roubaud,D ICCF 2009 0-1 (49)}) 12... Bxe2 13. Qxe2 c5 14. Nf3 c4 15. Nd4 e5 16. fxe5 Nxe5 17. d3 Nd6 18. a5 Qc5 19. Nf3 Nd7 20. dxc4 Rae8 21. Rfe1 dxc4 {Capron,M-Perevozchikov, V ICCF 2010 0-1 (52)}) (10. c3 a5 11. b5 Ne4 12. Rb1 c5 13. c4 Bxb2 14. Rxb2 d4 15. h3 Bxf3 16. Bxf3 Ng3 17. Re1 h5 18. e4 e5 19. f5 Qf6 20. d3 Kg7 21. Nb1 Qh4 {Malnar,A (2350)-Yanushevsky,N (2323) ICCF 2013 1/2 (35)}) 10... Qc7 (10... Ne4 11. Bxg7 Kxg7 12. c3 (12. Rb1 a5 13. b5 Qc5 14. Rb3 Rfc8 15. c4 e6 16. Qc1 Qd6 17. Qc2 Ndc5 18. Rb2 Nd7 19. Rb3 Nef6 20. bxc6 bxc6 21. d4 Bf5 22. Qa2 Rcb8 23. c5 Qe7 {Strange,M (2207)-Morley,P (2201) ICCF 2007 0-1 (56)}) 12... a5 13. b5 Rfd8 (13... Rac8 14. c4 cxb5 15. axb5 Qd6 16. Qc2 Rfd8 17. d3 Nef6 18. d4 dxc4 19. Nxc4 Nd5 20. Qb2 Qb4 21. Rfb1 Qc3 22. Ra3 Qxb2 23. Rxb2 b6 24. Kf2 Rc7 25. h3 {Heß,H (2335)-Ovcharenko,L ICCF 2009 0-1 (56)}) 14. Qc2 Ndf6 15. c4 cxb5 16. axb5 Rac8 17. d4 dxc4 18. Nxc4 Qxb5 19. Bd3 Nd5 20. Nfe5 Be6 21. f5 gxf5 22. Qe2 {Sedlácek,T (2212)-Gallo,C ICCF 2012 1/2 (66)}) 11. d3 (11. Rb1 Bxf3 12. Bxf3 e5 13. fxe5 Nxe5 14. Be2 Rfe8 15. Bd4 h5 16. c4 Neg4 17. g3 Nxh2 18. Kxh2 Ne4 19. Rf3 Bxd4 20. exd4 Nxg3 21. Bd3 Nf5+ 22. Kh1 Nxd4 {Jan,P (2195)-Graham, S (2178) ICCF 2009 1/2 (34)}) 11... Bxf3 12. Bxf3 a5 (12... Rfe8 13. Qd2 e5 14. a5 b6 15. b5 exf4 16. exf4 cxb5 17. Nxb5 Qc5+ 18. Nd4 Nh5 19. Ra4 b5 20. Rb4 Nxf4 21. Kh1 Rab8 22. Rxb5 Rxb5 23. Nxb5 Ne6 24. Bxg7 {Kaminski,J (2014) -Kratochvíl,V (2025) ICCF 2011 1/2 (60)}) 13. bxa5 e5 14. Qd2 Rfe8 15. g3 exf4 16. exf4 Nc5 17. Nb1 Ne6 18. Be5 Qxa5 19. Qxa5 {Kaminski,J (2019)-Levandovska, V (2164) ICCF 2013 1/2 (59)}) (7... Qd6 8. a3 c6 9. Be5 Qd8 10. d4 Nbd7 11. Nbd2 a5 12. h3 Bxf3 13. Bxf3 Nb6 14. b5 cxb5 15. Qe2 Qd7 16. Rfb1 b4 17. Nb3 Qc6 18. Nc5 Nfd7 19. Bxg7 {Maltais,C (2245)-Flory,D (2342) ICCF 2019 1/2}) ( 7... Ne4 8. Bxg7 Kxg7 9. Nc3 Nxc3 10. dxc3 c6 11. c4 Qb6 12. Ne5 Qxe3+ 13. Rf2 Bxe2 14. Qxe2 Qxe2 15. Rxe2 Rd8 16. cxd5 cxd5 17. c4 e6 18. cxd5 Rxd5 19. Rc1 { Bruce,R (1834)-Woodhouse,S (1719) ICCF 2014 1-0 (43)}) 8. c4 (8. Qe1 c6 9. a4 a5 10. b5 Nc5 (10... Qc7 11. Na3 Nb6 12. Be5 Qc8 13. c4 cxb5 14. axb5 dxc4 15. Rc1 Bxf3 16. Rxf3 Qd7 17. Nxc4 Nxc4 18. Bxc4 Ne4 19. d3 Nd6 20. Bxd6 Qxd6 21. f5 Bf6 22. Qe2 {Moser,M-Ramsden,J (1765) ICCF 2011 1/2 (46)}) 11. Nc3 Qc7 12. Rb1 Rfb8 13. d3 Nfd7 14. Qh4 Bxf3 15. Bxf3 Bf6 16. Qf2 Nb6 17. Ra1 Rd8 18. d4 Ncd7 19. bxc6 bxc6 {Sperandio,A (2010)-Weiss,L (2077) ICCF 2011 1/2}) (8. d4 c6 9. Nbd2 Qb6 10. Bc3 Ne8 11. a4 Nd6 12. a5 Qc7 13. h3 Bxf3 14. Bxf3 Nf6 15. Qe2 {1/2 (15) Tyulenko,Y (2449)-Grube,F (2221) ICCF 2014}) (8. Nc3 a5 9. b5 a4 10. a3 e6 11. Qe1 Ne4 12. d3 Nd6 13. Rb1 Qe7 14. Nd1 Bxb2 15. Rxb2 Rfc8 16. Nd4 Bxe2 17. Qxe2 c5 18. bxc6 bxc6 19. Nc3 Qf6 {Gonçalves,C (1918)-Molo,R (2301) ICCF 2006 1/2 (28)}) 8... dxc4 (8... c6 9. Na3 e6 10. Ne5 (10. cxd5 exd5 11. h3 Bxf3 12. Bxf3 Ne4 13. Bxg7 Kxg7 14. Bxe4 dxe4 15. b5 Qe7 16. bxc6 Qxa3 17. cxd7 Rad8 18. Qc2 Rxd7 19. Rab1 b6 20. Rb3 Qa5 21. Rc3 Rfd8 {Nitschke,N (1968) -Morcillo Holgado,M (1959) ICCF 2018 1/2 (30)}) 10... Bxe2 11. Qxe2 Qe7 12. Nxd7 Qxd7 13. Rab1 Rfd8 14. Rfc1 a5 15. b5 Rac8 16. c5 Qe7 17. bxc6 bxc6 18. Bxf6 Qxf6 19. d4 Rb8 20. Rb6 {Fagerbekk,E (2052)-Nilson,B (2062) ICCF 2007 1-0 (36)}) (8... a5 9. b5 e6 10. Ne5 Bxe2 11. Qxe2 Re8 12. Nc3 a4 13. Rac1 a3 14. Ba1 dxc4 15. Nxc4 Nd5 16. Ne4 Bxa1 17. Rxa1 f5 18. Nf2 Ra4 19. Rab1 b6 20. Rfc1 {Ros Padilla,J-Opitz,P (2173) ICCF 2010 1-0 (33)}) 9. Na3 c3 (9... c5 10. bxc5 Nxc5 11. Nxc4 Rc8 (11... Nd3 12. Ba3 b5 13. Nce5 Nxe5 14. Nxe5 Bxe2 15. Qxe2 Re8 16. Nc6 Qb6 17. Rac1 e6 18. Bb2 Nd5 19. Bxg7 Kxg7 20. Nd4 a6 21. Qd3 Red8 22. Rc6 Qa5 23. Qc2 {Heß,H (2358)-Raijmaekers,R (2371) ICCF 2005 1/2 (30)}) 12. Nce5 Nd5 (12... Be6 13. Rc1 h6 14. Bc4 Bxc4 15. Rxc4 Qd5 16. Ba3 Ne6 17. Ra4 Rc7 18. Rxa7 Qxa2 19. Qb1 Qxb1 20. Rxb1 Rb8 21. Bxe7 Rxe7 22. Nc6 bxc6 23. Rxb8+ Re8 24. Rxe8+ {Jan,P (2195)-Schumacher,F (2094) ICCF 2009 1/2 (43)}) 13. Rc1 Bxe5 14. Nxe5 Bxe2 15. Qxe2 f6 16. Ng4 Qa5 17. e4 Nb6 18. e5 f5 19. Nh6+ Kg7 20. e6+ Kxh6 21. Qe3 {Bruce,R (1883)-Wood,B (1868) ICCF 2016 1/2 (51)}) 10. Bxc3 c5 11. bxc5 Nxc5 12. Nc4 Rc8 13. Bd4 Ne6 14. Bxa7 (14. Bb2 Bxf3 15. Rxf3 Ne4 16. Bxg7 Nxg7 17. Rc1 b5 18. d3 Nf6 19. Ne5 Nd5 20. Rxc8 Qxc8 21. d4 Nf5 22. e4 Nc3 23. Rxc3 Qxc3 24. exf5 Qe3+ 25. Kh1 Qxf4 {Nielsen,J (1988) -Wiesinger,J (2052) ICCF 2012 1-0 (36)}) 14... Bxf3 15. Rxf3 b5 {Kaminski, J-Morgan,S (1970) ICCF 2008 0-1 (54)}) (4. Bb5+ c6 5. Ba4 (5. Be2 Bg7 6. O-O ( 6. d4 Bf5 7. O-O Nbd7 8. Nc3 h5 9. Nh4 e6 10. a4 a5 11. b3 Bf8 12. Nxf5 gxf5 13. Bb2 h4 14. Rf3 h3 15. Rxh3 Rxh3 16. gxh3 Qc7 17. Qe1 O-O-O {Rhodes,J (2395) -Marchant,M (2263) ICCF 2007 1-0 (74)}) 6... O-O 7. d4 Bf5 8. Nc3 Nbd7 9. b3 c5 10. Bb2 Rc8 11. Rc1 a6 12. h3 Qc7 13. g4 cxd4 14. Nxd4 Be4 15. g5 Ne8 16. Nxe4 dxe4 {Rhodes,J (2413)-Bobrov,V (2505) ICCF 2008 1/2 (42)}) 5... Bg7 6. O-O O-O 7. Nc3 (7. d3 Bg4 8. Nc3 Nbd7 9. Bd2 e5 10. Ne2 e4 11. Ne5 Nc5 12. Nxg4 Nxg4 13. Nc3 d4 14. Nxe4 Nxa4 15. Qxg4 f5 16. Qg3 fxe4 17. dxe4 d3 18. Bb4 c5 { Voglimacci,N-Jodar Arias,M ICCF 2011 0-1 (25)}) 7... Na6 8. d4 Bf5 9. Ne5 Qc8 10. Bd2 Nc7 11. Ne2 Ne4 12. Bb3 Ne8 13. Be1 N8d6 14. Ng3 Nxg3 15. Bxg3 a5 { Voglimacci,N-Beck,G (2223) ICCF 2011 0-1 (30)}) (4. d4 c5 (4... Bg7 5. Bd3 (5. c3 O-O (5... Bg4 6. Be2 O-O 7. b4 a5 8. O-O axb4 9. cxb4 Ne4 10. Ne5 Bxe2 11. Qxe2 Nd7 12. Bb2 c6 13. a3 Nb6 14. Nd2 {1-0 (14) Brown,F (1907)-Duman,C (2043) ICCF 2012}) (5... Bf5 6. Bd3 e6 7. Ne5 Nbd7 8. O-O O-O 9. Qe2 Bxd3 10. Qxd3 Ne4 11. b3 c5 12. Nxd7 Qxd7 13. Nd2 Nxd2 14. Bxd2 Qc6 15. b4 c4 16. Qc2 a5 17. a4 { Ribés Colom,J (2248)-Díaz Rubí,F (2229) ICCF 2018 1/2}) 6. Bd3 Bf5 (6... b6 7. Nbd2 c5 8. e4 (8. Ne5 Ba6 9. Qe2 Qc8 10. O-O Bxd3 11. Qxd3 Nbd7 12. b3 Rd8 13. Bb2 Qb7 14. a4 Rac8 15. Qe2 e6 16. g4 Ne8 17. g5 Nxe5 18. dxe5 Bf8 19. c4 Ng7 { Stanishevski,A (2090)-Dobrica,D (2379) ICCF 2014 0-1 (30)}) 8... Nc6 9. e5 Nh5 10. Nf1 Qc7 11. Ng3 Nxg3 12. hxg3 Bg4 13. Be2 cxd4 14. Nxd4 Bxe2 15. Nxe2 Rad8 16. Be3 f6 17. Nd4 Nxd4 18. cxd4 {Roth,P (2005)-Pacholský,M (2090) ICCF 2008 0-1 (50)}) (6... c5 7. dxc5 Nfd7 8. b4 a5 9. a3 axb4 10. O-O bxc3 11. Bc2 Qa5 12. Qxd5 Nxc5 13. Nd4 Nc6 14. Nxc6 bxc6 15. Qf3 Ba6 16. Rd1 Rfd8 17. e4 Rxd1+ 18. Qxd1 {Brown,F (1907)-Fernandes,L (2061) ICCF 2012 0-1 (25)}) 7. Bxf5 gxf5 8. O-O Nbd7 (8... Qd6 9. Qc2 Qe6 10. Na3 Na6 11. c4 Rfc8 12. Bd2 c5 13. Ng5 Qd7 14. dxc5 Rxc5 15. Bc3 h6 16. Nf3 dxc4 17. Rad1 Qe6 18. Qe2 Ng4 19. Bxg7 Kxg7 20. Rfe1 {Roth,P-Kratochvíl,J ICCF 2007 0-1 (54)}) 9. b3 c5 10. c4 dxc4 11. bxc4 Ne4 12. Bb2 Qb6 13. Qc2 Ndf6 14. Nc3 cxd4 15. Nxe4 Nxe4 16. Bxd4 Bxd4 { Roth,P-Rezny,D ICCF 2007 1/2}) (5. c4 c5 (5... c6 6. Nc3 O-O 7. Qb3 (7. Bd2 c5 8. dxc5 Nc6 9. cxd5 Nxd5 10. Nxd5 Qxd5 11. Qc1 Bg4 12. Bc4 Qf5 13. O-O Rac8 14. Be2 Nb8 15. Nd4 Bxd4 16. Bxg4 Bxe3+ 17. Bxe3 Qxg4 18. Qc3 Rfd8 {Geus, A-Vuillemin,G (2104) ICCF 2009 1/2 (25)}) (7. Be2 dxc4 8. Bxc4 c5 9. O-O cxd4 10. Qxd4 Qxd4 11. Nxd4 a6 12. a4 b6 13. Bd5 Ra7 14. Bf3 Bb7 15. Bd2 Nfd7 16. Rac1 Nc5 17. Rc2 Bxf3 18. Nxf3 Bxc3 {Perini,G (2191)-Bohak,J (2292) ICCF 2012 1/2 (34)}) (7. cxd5 cxd5 8. Be2 Nc6 9. O-O Bf5 10. Bd3 Bxd3 11. Qxd3 a6 12. b3 Rc8 13. a3 e6 14. Bb2 Na5 15. Ne2 Ne4 16. Rac1 Qb6 17. b4 Nc4 18. Rc2 Ned6 { Humbert,P-Benyounes,C ICCF 2010 0-1 (40)}) (7. c5 b6 8. b4 a5 9. Qb3 axb4 10. Na4 bxc5 11. Nxc5 Nfd7 12. Qxb4 Nxc5 13. Qxc5 Bf5 14. Bd2 Qc7 15. Be2 Nd7 16. Qc3 Nf6 17. Bd3 Bxd3 18. Qxd3 Ne4 {Jaumin,J (1617)-Flecher,J (1960) ICCF 2016 0-1 (31)}) 7... e6 8. Be2 c5 9. dxc5 dxc4 10. Qxc4 b6 11. c6 Qc7 12. Nb5 Qxc6 13. Nc7 b5 14. Qxc6 Nxc6 15. Nxa8 Bb7 16. Nc7 Nb4 17. Nd4 {Hanegby,A (2074) -Dunlap,J ICCF 2014}) (5... O-O 6. cxd5 Nxd5 7. e4 Nb6 8. Nc3 Bg4 9. Be3 e6 10. Be2 Nc6 11. e5 Ne7 12. O-O Nbd5 13. Nxd5 Nxd5 14. Bd2 c6 15. Ng5 Bxe2 16. Qxe2 Qb6 17. Bc3 {Geus,A (2157)-Pavlícek,M (2210) ICCF 2010 1/2 (43)}) (5... e6 6. Qc2 O-O 7. Be2 Nbd7 8. c5 Ne4 9. O-O f5 10. b4 a6 11. a4 Ndf6 12. Ne5 Nd7 13. Nd2 Nxe5 14. dxe5 Bd7 15. Nxe4 fxe4 16. Bb2 g5 17. Bd4 {Straka,J (2181)-Bryg,S ICCF 2013 1/2 (50)}) 6. dxc5 (6. b3 Nc6 7. Bb2 O-O 8. Nc3 dxc4 9. Bxc4 Ng4 10. Qe2 Nxe3 11. Bxf7+ Rxf7 12. Qxe3 cxd4 13. Qc1 Qa5 14. Nxd4 Bxd4 15. Qd2 e5 16. fxe5 Qxe5+ 17. Kd1 Rf2 {Rinaldi,M (1680)-Altieri,C (1867) ICCF 2014 0-1}) 6... O-O (6... Qa5+ 7. Nc3 dxc4 8. Qa4+ Qxa4 9. Nxa4 Bd7 10. Nc3 Na6 11. e4 Nb4 12. Rb1 Nd3+ 13. Bxd3 cxd3 14. Ne5 Rd8 15. Nxd7 Nxd7 16. Be3 Rc8 17. e5 Nxc5 18. Kd2 {Morelli,A (2202)-Köhler,J (2181) ICCF 2009 1/2 (50)}) 7. Nc3 e6 (7... Qa5 8. cxd5 (8. Bd2 Qxc5 9. Nxd5 Nxd5 10. cxd5 Qxd5 11. Bc3 Bxc3+ 12. bxc3 Qa5 13. Qd2 Rd8 14. Nd4 Nc6 15. Be2 Bf5 16. O-O Be4 17. Rfd1 Rac8 18. c4 Qa3 19. Qc1 Qc5 {Domenche Redondo,F (1778)-Lacasa Diaz,J (1903) ICCF 2019 0-1 (53)}) 8... Nxd5 9. Qxd5 Bxc3+ 10. Bd2 Rd8 11. Bxc3 Qxc3+ 12. bxc3 Rxd5 13. Rd1 Rxd1+ 14. Kxd1 Nd7 15. c6 bxc6 16. Kc2 Kg7 17. Be2 Nf6 18. Bd3 Ng4 19. Re1 {Ricard, J-Gierth,K (2303) ICCF 2003 1/2 (55)}) (7... Ne4 8. Nxe4 dxe4 9. Qxd8 Rxd8 10. Nd4 a5 11. Be2 Nc6 12. Nxc6 bxc6 13. Rb1 e5 (13... a4 14. Bd2 h5 15. a3 Kf8 16. Bb4 e5 17. g3 Be6 18. Kf2 exf4 19. gxf4 h4 20. Rhg1 Ke7 21. Rgf1 h3 22. Kg1 Bf6 23. b3 axb3 24. Rxb3 Ra7 25. Rbb1 {Binas,J (2328)-Binas,J (2357) ICCF 2016 0-1 (47)}) 14. fxe5 a4 15. Bd2 Bxe5 16. Bb4 Rb8 17. a3 Be6 18. Kf2 Rd7 19. g3 { Kolek,P (2393)-Mesko,J (2357) ICCF 2011 0-1 (62)}) 8. Rb1 (8. Be2 Nbd7 (8... Qe7 9. O-O Rd8 10. Qc2 Nc6 11. Rd1 Bd7 12. cxd5 exd5 13. Qb3 Qxc5 14. a4 Na5 15. Qa3 Qb6 16. Nd4 Bg4 17. Bf3 Rac8 18. Qa2 a6 19. Nce2 Re8 20. Rd3 {Roynet,S (2089)-Van Damme,L (2189) ICCF 2017 1-0 (25)}) 9. cxd5 exd5 10. Nxd5 Ne4 11. f5 Ndxc5 12. fxg6 fxg6 13. O-O Be6 14. Nf4 Bf7 15. Nd4 Qb6 16. b3 Rad8 17. Bf3 Ng5 18. Rb1 Nxf3+ 19. Rxf3 g5 {Roynet,S (2089)-Maguire,G (2311) ICCF 2017 0-1 (43)} ) 8... Qe7 9. cxd5 exd5 10. Bd3 Nc6 11. O-O Nb4 12. Be2 Bf5 13. a3 Bc2 14. Qd2 Bxb1 15. axb4 Ne4 16. Nxd5 Qe6 {Roynet,S (2089)-Armién,B (2040) ICCF 2017 0-1 (48)}) (5. Be2 O-O (5... Bf5 6. Bd3 c6 7. O-O h5 {0-1 (7) Brown,H (1941)-Alves, T (1748) ICCF 2017}) 6. O-O c5 (6... Nbd7 7. a4 (7. c3 Ne4 8. Nbd2 Ndf6 9. Nxe4 Nxe4 10. Qe1 Qd6 11. h3 Bf5 12. b3 Rfd8 13. Bb2 c6 14. g4 Bd7 15. Ne5 Bc8 16. c4 f6 17. Nd3 a5 18. Bf3 b6 {Nielsen,J (1954)-Stibal,G (1998) ICCF 2005 1-0 (36)}) 7... Ne4 8. c4 Ndf6 9. cxd5 Nxd5 10. Bd3 Nef6 11. Nc3 c5 12. Nxd5 Qxd5 13. b3 Be6 14. Bc4 Qf5 15. Ne5 cxd4 16. Bd3 Qh5 17. Be2 Qh6 18. exd4 {Langheld, W (2191)-Klapp,H (2343) ICCF 2018 1/2 (29)}) (6... Bg4 7. Ne5 Bxe2 8. Qxe2 e6 9. a3 Ne4 10. Nf3 Nd7 11. b4 c5 12. c3 cxb4 13. cxb4 Rc8 14. Bb2 Nb6 15. Rc1 Nc4 16. Nc3 Nxc3 17. Rxc3 b5 18. Rac1 {Velez Arana,J (1808)-Smith,P ICCF 2012 1/2 (45)}) (6... b6 7. b3 c5 8. c3 Nc6 9. Bb2 Bf5 10. Bd3 Qc8 11. c4 cxd4 12. exd4 Nb4 13. Bxf5 Qxf5 14. Na3 Nd3 15. Bc1 Nh5 16. Ne5 Qe4 17. Qxd3 Qxd3 18. Nxd3 {Velez Arana,J (1737)-Borges Medina,J (1897) ICCF 2015 0-1 (37)}) 7. c3 ( 7. Nc3 b6 8. b3 Nc6 9. Ne5 Bb7 10. Bb2 cxd4 11. exd4 e6 12. Bf3 Ne7 13. a4 Nf5 14. Re1 Rc8 15. a5 bxa5 16. Na4 Ne4 17. Bxe4 dxe4 18. Nc5 Ba8 {Bito,L (2132) -Gunkel,W (2339) ICCF 2016 1/2 (31)}) (7. b3 cxd4 8. exd4 Nc6 9. Bb2 Bf5 10. Bd3 Rc8 11. Re1 Bxd3 12. Qxd3 Nb4 13. Qd1 Nxc2 14. Nbd2 Qd7 15. Rc1 Nxe1 16. Nxe1 Qe6 17. Nf1 Rxc1 18. Bxc1 Rc8 {Velez Arana,J (1751)-Solari,A (2397) ICCF 2015 0-1 (28)}) 7... Nc6 8. Bd3 (8. Nbd2 Qd6 9. Ne5 Rb8 10. Qe1 Bf5 11. b3 b5 12. Ba3 b4 13. dxc5 Qxc5 14. Nxc6 Qxc6 15. Bxb4 Qb6 16. Qf2 Rfc8 17. Rac1 Rb7 18. Bf3 Rbc7 19. Nb1 Ne4 {Cabral,R (1917)-Antunes,M ICCF 2005 0-1 (58)}) (8. Ne5 Bf5 9. Nd2 Qc7 10. g4 (10. Bf3 Rfd8 11. g4 Bc8 12. Qe2 a5 13. Nd3 cxd4 14. exd4 b6 15. a4 Ba6 16. Nb1 Qd7 17. h3 Ne4 18. Qe3 f5 19. Nd2 Nc5 20. dxc5 d4 21. Bxc6 Qxc6 {Brundisch,V (2141)-Salzmann,S (2292) ICCF 2007 1/2 (54)}) 10... Be6 11. f5 Bc8 12. Nxc6 Qxc6 13. Bd3 a5 14. a4 gxf5 15. gxf5 c4 16. Bc2 e6 17. Qf3 exf5 18. Bxf5 Bxf5 19. Qxf5 Rae8 {Pisani,C (2139)-Silva Filho,A (2278) ICCF 2016 1/2 (33)}) 8... c4 9. Bc2 b5 10. Ne5 Qc7 11. a4 bxa4 12. Bxa4 Bb7 13. Nd2 e6 14. b3 cxb3 15. Ba3 Rfc8 16. Bxb3 a5 {Bito,L (2138)-Husák,J (2082) ICCF 2017 1/2 (63)}) (5. Nc3 b6 (5... O-O 6. Be2 c6 7. b3 Bf5 8. h3 Be4 9. Ba3 Re8 10. Qd2 e6 11. O-O a5 12. Ng5 h6 13. Ngxe4 Nxe4 14. Qe1 Nd7 15. Bf3 Ndf6 16. Nxe4 dxe4 17. Be2 {Rinaldi,M (1676)-Parente,M (1548) ICCF 2016 0-1 (50)}) 6. Ne5 Bb7 7. Bb5+ c6 8. Ba4 O-O 9. a3 b5 10. Bb3 a5 11. Bd2 a4 12. Ba2 Nbd7 13. Qf3 Nb6 14. O-O-O Nc4 15. Bxc4 bxc4 16. g4 Ne8 {Rinaldi,M (1676)-Pivirotto,F (1728) ICCF 2016 0-1 (40)}) (5. b4 O-O 6. Ba3 Nbd7 7. Bd3 Nb6 8. Nc3 Nc4 9. Bxc4 dxc4 10. O-O Nd5 11. Qd2 Nxc3 12. Qxc3 b5 13. Bb2 Bb7 14. Qd2 Bd5 15. a4 a6 16. a5 h6 {Elias,B (1618)-Anonymous,R (1694) ICCF 2009 1-0 (33)}) (5. b3 O-O 6. Bd3 (6. Bb2 c5 7. Be2 Bf5 8. Bd3 Nc6 9. Bxf5 gxf5 10. dxc5 Qa5+ 11. Qd2 Qxc5 12. Bxf6 Bxf6 13. c3 Kh8 14. b4 Qc4 15. Nd4 Nxd4 16. exd4 Rac8 17. Kf2 Rg8 { Korman,J-Rossi,C ICCF 2008 1/2 (30)}) 6... c5 7. c3 {1-0 (7) McClure,D (2135) -Cherner,L (1805) ICCF 2011}) (5. Nfd2 O-O 6. Bd3 Bg4 7. Nf3 Nc6 8. c3 Ne4 9. Bxe4 dxe4 10. h3 exf3 11. hxg4 fxg2 12. Rg1 e5 13. d5 Qh4+ 14. Kd2 Qf2+ 15. Kd3 Rad8 16. e4 exf4 {Chugg,M (1406)-Merenga,A (1678) ICCF 2016 0-1 (28)}) (5. Ne5 O-O 6. Nd2 c5 (6... Nbd7 7. Bd3 Nxe5 8. fxe5 Bg4 9. Be2 Bxe2 10. Qxe2 Nd7 11. O-O c5 12. c3 Qb6 13. Kh1 Rac8 14. Nf3 f6 15. exf6 Nxf6 16. Ne5 Ne4 17. Rxf8+ Bxf8 18. Nd7 {Saba,N (1748)-Parente,A (1765) ICCF 2010 1/2 (27)}) 7. c3 Qc7 8. Be2 Be6 9. O-O Nbd7 10. g4 Nxe5 11. fxe5 Nd7 12. e4 cxd4 13. cxd4 Qb6 14. Nb3 dxe4 15. Be3 Nxe5 16. Bf2 Nc6 {Saba,N (1748)-Biel,I ICCF 2010 0-1 (29)}) (5. Bb5+ Bd7 6. Qe2 a6 7. Bd3 O-O 8. O-O Nc6 9. c4 dxc4 10. Bxc4 b5 11. Bb3 Bf5 12. Ne5 Nxe5 13. fxe5 Ne8 14. Qf2 Rc8 15. Nc3 c5 16. a4 c4 {Little,G (1416)-Fox,J (1499) ICCF 2019 1-0 (39)}) 5... O-O (5... c5 6. c3 Qb6 7. O-O Nc6 8. b3 Bg4 9. h3 Bxf3 10. Qxf3 cxd4 11. exd4 Nxd4 12. Qf2 Nf5 13. Qxb6 axb6 14. Na3 O-O 15. Nb5 Ne4 16. Bb2 Rfc8 17. Rfd1 {Kaminski,J (1918)-Pastor Cutillas,A ICCF 2018 0-1 (43)}) (5... Ne4 6. Nbd2 f5 7. O-O Nd7 8. c4 e6 9. Ne5 Ndf6 10. b3 Bf8 11. Bb2 Bd7 12. Rc1 Bd6 13. c5 Bxe5 14. fxe5 Ng8 15. Ba3 Qg5 16. Rf3 h5 17. Qe2 { McLaughlin,E (1681)-Smiley,W (1906) ICCF 2015 0-1 (38)}) 6. O-O (6. c4 c5 7. Nc3 cxd4 8. Nxd5 Nxd5 9. cxd5 dxe3 10. Qb3 Qa5+ 11. Ke2 Nd7 12. Bxe3 Rd8 13. Rac1 Nb6 14. Rc5 Qa4 15. Bc2 Qxb3 16. Bxb3 Bxb2 17. Rd1 Bf5 {Bruce,R (1776) -Steenlandt,A (1748) ICCF 2014 1/2 (43)}) 6... c5 (6... b6 7. c4 c5 (7... Bb7 8. Nc3 e6 9. Ne5 Nbd7 10. cxd5 exd5 11. Bd2 c5 12. Qe2 a6 13. h3 b5 14. Rac1 Qb6 15. a3 cxd4 16. exd4 Nxe5 17. fxe5 Qxd4+ 18. Kh2 Ne4 19. Bxe4 {Lawal, R-Dempster,D (1627) ICCF 2010 0-1 (51)}) (7... dxc4 8. Bxc4 c5 9. dxc5 Qc7 10. Qb3 Qxc5 11. Bd2 Ba6 12. Na3 Qf5 13. Bc3 Bxc4 14. Nxc4 Nbd7 15. Bd4 Rac8 16. Rac1 Nc5 17. Qa3 Nd5 18. Rfd1 Rfd8 19. Bxg7 {Ricard,J-Rilberg,S (2310) ICCF 2003 0-1 (55)}) 8. dxc5 bxc5 9. Nc3 e6 10. e4 dxe4 11. Nxe4 Bb7 12. Qe2 Qc7 13. Bd2 Nxe4 14. Bxe4 Bxe4 15. Qxe4 Nc6 16. Rab1 Rab8 17. Bc3 Bxc3 18. bxc3 { Dearnley,A (2294)-Saule,Z (2381) ICCF 2006 1/2 (27)}) (6... Bg4 7. Nbd2 Bxf3 8. Qxf3 e6 9. c3 Nbd7 10. e4 dxe4 11. Nxe4 Nxe4 12. Bxe4 c6 13. Be3 Nf6 14. Bc2 Qd5 15. Qxd5 exd5 16. f5 Rfe8 17. Rae1 Re7 18. Bg5 {Minniti,E-Goi,V ICCF 2010 1-0 (30)}) (6... Nc6 7. c3 Bg4 8. Nbd2 b6 9. Qe1 Rc8 10. e4 dxe4 11. Nxe4 Nxe4 12. Bxe4 Bxf3 13. Bxf3 Qd7 14. Be3 e6 15. Rd1 Rfd8 16. Bxc6 Qxc6 17. Rf2 Rd5 18. b3 {Karlsson,G-Hultin,S ICCF 2013 1-0 (26)}) 7. c3 (7. dxc5 Nbd7 (7... Qc7 8. Nc3 Qxc5 9. Bd2 Nc6 10. Na4 Qd6 11. Bc3 Bg4 12. h3 Bxf3 13. Qxf3 Rab8 14. Qe2 d4 15. exd4 Nd5 16. Rad1 Nxc3 17. Nxc3 Qb4 18. d5 Nd4 19. Qf2 {Manarin,F (1694)-Jaeger,F (2065) ICCF 2009 0-1 (34)}) 8. Nc3 (8. c3 Nxc5 9. Bc2 e6 10. Nbd2 b6 11. b3 Bb7 12. h3 Rc8 13. g4 Nce4 14. g5 Nh5 15. Nxe4 dxe4 16. Nd2 Rxc3 17. Bxe4 Bxe4 18. Nxe4 Rd3 19. Bd2 Bxa1 {Mill-Wilson,G (1474)-Hipwell,C (1648) ICCF 2018 0-1}) 8... Nxc5 9. Bd2 Bg4 10. Be2 Nfe4 11. Nd4 Bxe2 12. Ndxe2 Rc8 13. f5 d4 14. Nxe4 Nxe4 15. Qe1 Rxc2 16. Bb4 dxe3 17. Rd1 Qb6 18. Bxe7 Re8 { Acosta,E-Kinchant,K (2096) ICCF 2010 0-1}) (7. Qe1 Nc6 8. c3 Ne4 9. Nbd2 f5 ( 9... Bf5 10. dxc5 Ng3 11. Qxg3 Bxd3 12. Rd1 Bc2 13. Rf1 Qa5 14. Nd4 Bd3 15. N2b3 Qa4 16. Re1 Rfe8 17. Nd2 e5 18. fxe5 Nxe5 19. b3 Qa5 20. b4 Qa4 21. a3 { Josefsson,K (2163)-Frijling,J (2166) ICCF 2014 0-1 (42)}) 10. Ne5 Nxe5 11. fxe5 Qb6 12. Nxe4 fxe4 13. Rxf8+ Bxf8 14. Be2 Bd7 15. b3 e6 16. h4 Bb5 17. Bg4 h5 18. Bh3 Kg7 {Bobel,P (2259)-Woznica,M (2265) ICCF 2008 1/2 (34)}) (7. Ne5 b6 ( 7... Nc6 8. c3 Bf5 9. Qe2 e6 10. b3 Qa5 11. Bb2 Bxd3 12. Nxd3 cxd4 13. cxd4 Ne4 14. Nf2 Nxf2 15. Qxf2 Bf6 16. Nc3 Kg7 17. Na4 Rac8 18. Nc5 b6 19. Nd7 {Bode,D (2334)-Fister,B (2305) ICCF 2014 1-0 (49)}) 8. Nd2 (8. b3 cxd4 9. exd4 Bb7 10. Nd2 Nc6 11. c3 Ne4 12. Nxe4 Nxe5 13. fxe5 dxe4 14. Bc4 Rc8 15. Qe1 b5 16. Bxb5 Qb6 17. Bc4 Bxe5 18. a4 a5 19. Bg5 Bf6 {Wuttke,J (2250)-Arnold,H (2259) ICCF 2010 0-1 (66)}) 8... Ba6 9. dxc5 bxc5 10. b3 Qb6 11. Bb2 Rd8 12. Qf3 Nc6 13. Bxa6 Qxa6 14. c4 Rac8 15. Nxc6 Qxc6 16. Rad1 e6 17. Be5 a5 18. g4 h5 {Wuttke,J (2250)-Zelenyuk,O ICCF 2010 1/2 (32)}) 7... b6 (7... Nc6 8. Nbd2 b6 (8... cxd4 9. exd4 Bf5 10. Bxf5 gxf5 11. Ne5 Qd6 12. Rf3 Kh8 13. Rh3 e6 14. b3 Qe7 15. a4 Qe8 16. Ba3 Rg8 17. Ndf3 Nxe5 18. dxe5 Ng4 19. Rh4 Bf8 20. Qd2 {Hanegby,A (2074)-Pivirotto,F (1830) ICCF 2014 1-0 (45)}) (8... Qd6 9. Qe2 (9. Ne5 Bf5 ( 9... Qc7 10. Qf3 Be6 11. h3 Rad8 12. g4 Nxe5 13. dxe5 Nd7 14. c4 dxc4 15. Bxc4 Nxe5 16. fxe5 Rxd2 17. Bxd2 Bxc4 18. Rfc1 Bb5 19. Bc3 Bxe5 20. Bxe5 Qxe5 21. Rc2 {Lawal,R-Graham,S (2243) ICCF 2010 0-1 (48)}) 10. Bxf5 gxf5 11. Rf3 Rfd8 12. Rg3 Rac8 13. Qe2 Qe6 14. b3 Kh8 15. Bb2 Rg8 16. Rc1 cxd4 17. cxd4 Rc7 18. Qd1 Rgc8 19. Nd3 Ng4 20. Nf1 Nb8 {Lindemann,R (2222)-Rotte,P (1942) ICCF 2015 1-0 (59)}) 9... Bg4 10. h3 Bxf3 11. Qxf3 Nd7 12. a4 b6 13. Rb1 cxd4 14. exd4 f5 15. Qe3 Nf6 16. b3 Ne4 17. Bb2 Rf7 18. Rbd1 e6 19. Nf3 Rc7 20. Bb1 {Humphreys, S (2185)-Noble,M (2513) ICCF 2009 0-1 (29)}) (8... c4 9. Bc2 Bf5 10. b3 b5 11. Ne5 Bxc2 12. Qxc2 Qc7 13. Ba3 Rfe8 14. bxc4 bxc4 15. Qa4 Nxe5 16. fxe5 Bh6 17. exf6 Bxe3+ 18. Kh1 Bxd2 19. Qc2 Bf4 20. Bxe7 {Gerards,A (2296)-De la Fuente Gonzalez,F (2117) ICCF 2010 1/2 (25)}) 9. Ne5 Qc7 10. Qe2 Bb7 11. g4 Rad8 12. Qg2 Qc8 13. Nxc6 Qxc6 14. f5 Ne8 15. Nf3 Nd6 16. Bd2 Nc4 17. Bc1 e5 18. Be2 Rfe8 19. a4 {Stanishevski,A (2090)-Golubenko,A (2206) ICCF 2014 0-1}) (7... Qb6 8. Nbd2 (8. Re1 Rd8 9. dxc5 Qxc5 10. Nd4 Nc6 11. b3 e5 12. Ba3 Qa5 13. Nxc6 bxc6 14. fxe5 Ng4 15. Be7 Bxe5 16. h3 Bh2+ 17. Kf1 Re8 18. Bb4 Qb6 19. hxg4 Rxe3 {Roth,P (2005)-Portych,V (2047) ICCF 2008 0-1 (27)}) (8. Kh1 Bf5 9. Bxf5 gxf5 10. Nbd2 e6 11. Ne5 Qc7 12. Qe2 Nbd7 13. Rg1 h5 14. Rf1 Rfc8 15. Rf3 Rab8 16. b3 b5 17. Rh3 a5 18. Bb2 a4 19. bxa4 bxa4 {Josefsson,K (2232)-Askelöf,P (2188) ICCF 2011 1/2 (48)}) 8... Nc6 (8... Bf5 9. Bxf5 gxf5 10. Ne5 Nbd7 11. Rf3 Rac8 12. Rh3 Nxe5 13. dxe5 Ng4 14. Rg3 f6 15. h3 Nh6 16. Nf3 Rfd8 17. exf6 Qxf6 18. Bd2 Nf7 19. c4 Kf8 20. Bc3 {Lindemann,R (2222)-Peerdeman,N ICCF 2015 1-0 (38)}) 9. Qb3 (9. Qe1 Rd8 (9... Re8 10. Ne5 Be6 11. a4 Nd7 12. Ndf3 Ndxe5 13. fxe5 f6 14. a5 Qc7 15. b4 cxb4 16. cxb4 a6 17. Bb2 Qd7 18. Rc1 Bf5 19. Bxf5 Qxf5 20. Qc3 Qd7 21. Qb3 {Hanegby,A (2074)-Nordal,S (2281) ICCF 2014 1/2 (38)}) 10. Ne5 (10. b3 cxd4 11. exd4 Nh5 12. Qe3 Bh6 13. Ne5 f6 14. Nxc6 Qxc6 15. Qxe7 Re8 16. Qc5 Qxc5 17. dxc5 Re3 18. Rf3 Bxf4 19. Kf2 Re7 20. g3 Bc7 21. Ba3 f5 { Snijders,J (2111)-Loisel,D (2207) ICCF 2018 0-1 (50)}) 10... Bf5 (10... Ne8 11. Ndf3 Nd6 12. b3 f6 13. Nxc6 Qxc6 14. Ba3 b6 15. Rc1 e6 16. Qf2 Ne4 17. Qc2 Bb7 18. c4 Rac8 19. Rfd1 Qe8 20. Qe2 Bf8 21. Bb2 cxd4 22. Bxe4 {Morelli,A (2257) -Evtushenko,S ICCF 2010 1/2 (33)}) 11. Bxf5 gxf5 12. Rf3 e6 13. Rh3 Rac8 14. Nf1 h6 15. Ng3 Rc7 16. Nh5 Nxh5 17. Rxh5 a5 18. Rh3 Rf8 19. Qd1 Nxe5 20. fxe5 f6 {Jensen,K (2183)-Chatel,M (2176) ICCF 2020 1/2 (38)}) (9. Kh1 Bg4 10. h3 Bf5 11. Bxf5 gxf5 12. Ne5 cxd4 13. exd4 Rad8 14. Qe2 e6 15. Rg1 Qc7 16. g4 Ne7 17. Nf1 Ne4 18. Be3 f6 19. Nd3 Kh8 20. Ng3 Rg8 {Jensen,K (2170)-Lefebvre,A (2263) ICCF 2015 0-1 (46)}) (9. Qe2 Bg4 {0-1 (9) Neelmeier,S-Roy Laguens,A ICCF 2011} (9... Nh5 10. Ne5 cxd4 11. Nxc6 bxc6 12. exd4 c5 13. dxc5 Qxc5+ 14. Kh1 Qc7 15. Nf3 Bg4 16. Qe3 Nf6 17. Ne5 Be6 18. Qe2 Rab8 19. Be3 Ne4 20. c4 Rfd8 21. cxd5 { Josefsson,K (2232)-Bennborn,J (2330) ICCF 2011 1/2 (40)}) 10. h3 Be6 11. Kh2 Rac8 12. Ne5 Qc7 13. Nxc6 Qxc6 14. b3 Ne4 15. Bb2 f5 16. Rac1 c4 17. Bxe4 dxe4 18. Rg1 Qa6 19. Ra1 h5 20. g3 Kf7 21. Rge1 Bf6 {Velker,W (2181)-Danculovic,J (2209) ICCF 2015 1/2 (34)}) 9... c4 10. Qxb6 axb6 11. Be2 Bg4 12. h3 Bf5 13. Ne5 Rfd8 14. g4 Bc2 15. Bd1 Bxd1 16. Rxd1 Na5 17. a3 Ne4 18. Rb1 f6 19. Nef3 { Gérard,A (1927)-Laine,E (2075) ICCF 2013 1/2}) (7... Qc7 8. Nbd2 (8. Qe2 Bg4 9. Nbd2 Nbd7 10. h3 Bxf3 11. Qxf3 e6 12. Rd1 a6 13. Nf1 Ne8 14. Bd2 Nd6 15. Be1 Rab8 16. g4 b5 17. Ng3 a5 18. Rac1 Qb7 19. h4 f5 {Zakharov,A-Bobrov,V (2417) ICCF 2009 0-1 (31)}) 8... Bf5 (8... Nc6 9. dxc5 (9. Ne5 Ne8 10. Qf3 Be6 11. g4 Nxe5 12. fxe5 f6 13. Qh3 fxe5 14. Rxf8+ Bxf8 15. Nf3 Nf6 16. Nxe5 Bg7 17. Bd2 Qb6 18. b4 Ne4 19. dxc5 Qc7 20. Nf3 Nxd2 {Domenche Redondo,F (1735)-Keller,G ICCF 2020 1-0 (32)}) 9... e5 10. Bb5 exf4 11. exf4 Na5 12. b4 Nc6 13. Bxc6 (13. Nd4 a5 14. bxa5 Nxa5 15. Ba3 Nc6 16. Bb2 Na7 17. N2b3 Bg4 18. Be2 Bxe2 19. Qxe2 {Geus,A (2156)-Jacobi,N ICCF 2011 0-1 (40)}) 13... bxc6 14. Ne5 Re8 15. Bb2 a5 16. a3 Nd7 17. c4 Nxe5 18. Bxe5 Bxe5 19. fxe5 Qxe5 20. Nf3 {Binder,E (2134) -Schirmer,M (2314) ICCF 2015 1/2 (47)}) (8... b6 9. Qe1 Ba6 10. Bxa6 Nxa6 11. Qe2 Nb8 12. Ne5 Nc6 13. Rf3 Nd7 14. b3 Ndxe5 15. fxe5 f6 16. e4 cxd4 17. exd5 Nxe5 18. Rh3 d3 19. Qe1 Qxc3 20. Ba3 {Guzman,H-Weiss,L (2043) ICCF 2013 0-1 (31)}) (8... Bg4 9. h3 Bxf3 10. Qxf3 Nbd7 11. Rf2 e6 12. Nf1 Ne8 13. g4 Nd6 14. Ng3 Qc6 15. h4 f5 {Rekhtman,P-Neto,H (2550) ICCF 2007 0-1 (32)}) 9. Bxf5 gxf5 10. Qe2 e6 11. Ne5 Nc6 12. b3 Rfc8 13. Bb2 cxd4 14. exd4 Ne7 15. c4 dxc4 16. bxc4 b5 17. c5 Nfd5 18. g3 a6 19. Ndf3 {Jensen,K (2183)-Roth,P (2168) ICCF 2020 1/2 (31)}) (7... c4 8. Bc2 Qc7 9. Nbd2 b5 10. a4 b4 11. cxb4 Nc6 12. b5 Nb4 13. Bb1 a6 14. bxa6 Bxa6 15. Ne5 Rfb8 16. Ndf3 Ne4 17. Ng5 Nxg5 18. fxg5 Bxe5 19. dxe5 {Domenche Redondo,F (1722)-Piqueras Jiménez,M (2003) ICCF 2018 1-0 (39)}) 8. Nbd2 (8. Qe2 Bb7 (8... a5 9. a4 (9. Ne5 e6 10. Nd2 Ba6 11. Bxa6 Nxa6 12. a4 Nc7 13. b3 Nce8 14. Ba3 Qc7 15. c4 Nd6 16. cxd5 exd5 17. dxc5 bxc5 18. Rac1 Nde4 19. Nd3 Nxd2 20. Qxd2 Ne4 {Lindemann,R (2248)-Laan,A ICCF 2013 1/ 2 (58)}) (9. Nbd2 Ba6 10. Bxa6 Nxa6 11. b3 Nc7 12. Bb2 e6 13. Ne5 a4 14. c4 Qd6 15. Ba3 Ra5 16. Bb2 Rfa8 17. Rab1 axb3 18. axb3 Ra2 19. Bc3 Nce8 20. Qf3 cxd4 { Guinefolleau,M (2017)-Charpentier,D (2153) ICCF 2016 0-1 (39)}) 9... Ne4 10. Nbd2 Bb7 11. Ne5 f6 12. Ng4 Nd6 13. b3 Nd7 14. Bb2 e5 15. fxe5 fxe5 16. e4 Qg5 17. dxe5 Nxe5 18. Nxe5 Qxe5 19. exd5 Bxd5 20. Qxe5 {Jensen,K (2180)-Keber,E (2198) ICCF 2014 1/2 (40)}) (8... Bg4 9. h3 Bf5 (9... Bd7 10. Ne5 Nc6 11. Nd2 Qc7 12. Nxd7 Nxd7 13. Nf3 e6 14. Bd2 a5 15. a4 Nf6 16. Be1 Ne7 17. Bh4 Nf5 18. Bxf6 Bxf6 19. Bxf5 exf5 20. Ne5 Bg7 21. Qb5 {Jensen,K (2180)-Andersen,L (2201) ICCF 2007 1/2 (70)}) 10. Bxf5 gxf5 11. Nbd2 Qd6 12. b3 Rd8 13. Ba3 Nbd7 14. Rfd1 Qe6 15. c4 dxc4 16. Ng5 Qc6 17. Nxc4 h6 18. Nf3 Ne4 19. Bb2 Qg6 20. Rac1 { Kaminski,J (1918)-Rotte,P (1912) ICCF 2018 1-0 (29)}) 9. b3 (9. Nbd2 Nc6 (9... Nbd7 10. Ne5 Ne4 (10... Qc7 11. g4 Nxe5 12. fxe5 Ne8 13. g5 f6 14. Qg4 fxe5 15. Qe6+ Kh8 16. Rxf8+ Bxf8 17. Qxe5+ Qxe5 18. dxe5 Bg7 19. Nf3 d4 20. Nxd4 Rd8 21. Be2 cxd4 22. exd4 {Ramos Mora,J (1896)-Prati,A (1688) ICCF 2013 0-1 (54)}) ( 10... e6 11. g4 Ne4 12. Nxe4 dxe4 13. Bc2 f6 14. Nxd7 Qxd7 15. dxc5 bxc5 16. b3 Qe7 17. Bb2 f5 18. Rad1 Rac8 19. Rd2 Kh8 20. Rfd1 Bd5 21. gxf5 gxf5 22. Qh5 { Whitehouse,B-Palmer,L ICCF 2012 1/2 (50)}) 11. Nxe4 dxe4 12. Bc2 Qc8 13. Bd2 Ba6 14. Qe1 Nxe5 15. fxe5 Bxf1 16. Qxf1 Qc6 17. Qf4 Rad8 18. Bxe4 Qb5 19. b3 Qe2 20. Be1 f6 21. Qf2 {Whitehouse,B-Halliwell,T (2321) ICCF 2013 0-1 (49)}) ( 9... Ne4 10. Ne5 f6 11. Ng4 f5 12. Ne5 Nd7 13. Ndf3 (13. a4 e6 14. Ndf3 Rc8 15. Bd2 Qc7 16. Be1 {Jan,P-Caldwell,J (2281) ICCF 2006 1/2 (41)}) 13... e6 14. Bd2 Nxe5 15. dxe5 h6 16. Rfd1 g5 17. Be1 Qe8 18. b4 Rf7 19. a4 Bf8 20. a5 g4 21. Nh4 {Jensen,K (2183)-Sorbi,L (2150) ICCF 2020 1/2 (35)}) 10. Ne5 (10. b3 Rc8 11. Ba3 e6 12. Rac1 Ne7 13. Ne5 Nf5 14. Rfd1 Re8 15. Nf1 h5 16. Bb5 Re7 17. Bd3 Nd6 18. dxc5 bxc5 19. c4 Qb6 20. Bb2 a5 21. Qc2 a4 {Roynet,S (2089)-Khokhlov,I (2357) ICCF 2017 0-1 (58)}) 10... e6 11. Ndf3 (11. b3 Rc8 12. Nxc6 Bxc6 13. Ba3 Bb7 14. Rac1 Re8 15. Bb2 cxd4 16. cxd4 Re7 17. Rxc8 Qxc8 18. Rc1 Rc7 19. Rxc7 { 1/2 (19) Velker,W (2237)-Korzh,L (2323) ICCF 2009}) 11... Ne4 12. Bd2 Ne7 13. Be1 f6 14. Ng4 Nf5 15. Nf2 Qc7 16. Nd2 Nxd2 17. Bxd2 Nd6 18. e4 dxe4 19. Nxe4 cxd4 20. cxd4 f5 {Jensen,K (2180)-Szerlak,A (1985) ICCF 2014 0-1 (60)}) (9. Bd2 Ne4 10. Be1 Nd7 11. Nbd2 Ndf6 12. Bh4 Qc7 13. Rad1 Rad8 14. Rc1 a5 15. c4 Nxd2 16. Qxd2 Qd6 17. Qe2 Rc8 18. b3 dxc4 19. Bxc4 Ne4 20. Rfd1 e6 {Tauber,H (2288) -Castro Salguero,R (2206) ICCF 2005 1-0 (61)}) 9... Nbd7 (9... Ne4 10. Bb2 e6 11. Nbd2 Nd7 12. Ne5 Nxd2 13. Qxd2 Rc8 14. Qe2 Qc7 15. Rac1 Nxe5 16. fxe5 f6 17. exf6 Bxf6 18. c4 Bg7 19. Rxf8+ Rxf8 20. Rf1 Rxf1+ 21. Qxf1 {Gérard,A (1927) -Efanov,N (2353) ICCF 2013 1/2}) 10. Bb2 Ne4 (10... Qc7 11. Nbd2 Ne4 12. Rac1 Qd6 13. Ba6 Bxa6 14. Qxa6 Ndf6 15. Nxe4 Nxe4 16. Qd3 a5 17. Nd2 Nxd2 18. Qxd2 Rfc8 19. c4 dxc4 20. Rxc4 b5 21. Rcc1 cxd4 22. Bxd4 {Gérard,A (1927)-Nouveau,L (2026) ICCF 2013 1/2 (29)}) 11. Nbd2 (11. Rd1 Qc7 12. c4 e6 13. Na3 a6 14. Rac1 Rfe8 15. Nb1 dxc4 16. Bxc4 b5 17. Bd3 Qb6 18. Bxe4 Bxe4 19. dxc5 Qc7 20. Bxg7 Kxg7 21. Nc3 Bc6 22. b4 Kg8 {King,K-Tanner,G (1594) ICCF 2020 1-0 (31)}) 11... Rc8 (11... Ndf6 12. c4 e6 13. a4 cxd4 14. exd4 Nxd2 15. Qxd2 dxc4 16. bxc4 Bxf3 17. Rxf3 Qc7 18. a5 Rfd8 19. axb6 axb6 20. Rxa8 Rxa8 21. Rf1 Qd6 22. Kh1 Rd8 23. Bb1 {Jensen,K (2180)-Wiesinger,J (2117) ICCF 2014 1/2 (35)}) 12. Rac1 e6 13. Rfd1 Qe7 14. c4 (14. Ba3 Rfd8 15. Qe1 Qe8 16. Bb2 Nxd2 17. Nxd2 Nf6 18. Qe2 Qe7 19. Nf3 Ne4 20. Ne5 cxd4 21. cxd4 Qb4 22. g4 f6 23. Nf3 a5 24. Bb5 Qe7 25. h4 Qd6 {Malnar,A (2375)-Witzschel,P (2379) ICCF 2016 1/2 (31)}) 14... cxd4 15. exd4 Nxd2 16. Rxd2 Rfd8 17. Rcc2 dxc4 18. bxc4 Rc7 19. h3 Rdc8 {Jensen,K (2183) -Milani,O (2141) ICCF 2020 1/2 (44)}) (8. b3 Ba6 (8... e6 9. Ne5 Bb7 10. Nd2 Nbd7 11. Qe2 Rc8 12. Bb2 Ne8 13. Ba6 Bxa6 14. Qxa6 Nd6 15. Qd3 Qc7 16. Rac1 Rfd8 17. c4 dxc4 18. Ndxc4 Nxc4 19. Qxc4 Qb7 20. Rfd1 {Gérard,A (1927) -Mamonovas,V (2206) ICCF 2013 0-1 (34)}) 9. Ne5 e6 10. Bb2 Qc8 11. Nd2 Bxd3 12. Nxd3 cxd4 13. cxd4 Qb7 14. Ne5 Rc8 15. Ndf3 Ne4 16. Rc1 Rxc1 17. Qxc1 Bxe5 18. fxe5 Nc6 19. Nd2 Nb4 {Lima,A (1963)-Mamonovas,V (2212) ICCF 2015 0-1 (31)}) (8. Bd2 Bb7 9. Be1 Ne4 10. Nbd2 Nd7 {0-1 (10) Borisek,A-Rihtaric,I ICCF 2005}) 8... Ba6 (8... Bf5 9. Bxf5 gxf5 10. Ne5 Nbd7 11. b3 e6 12. Bb2 Nxe5 13. fxe5 Ng4 14. Qe1 f6 15. h3 Nh6 16. exf6 Rxf6 17. dxc5 Rg6 18. cxb6 axb6 19. a4 Rc8 20. Rc1 { Prystenski,A (2255)-Hynes,W (2485) ICCF 2009 1/2 (36)}) 9. Bxa6 Nxa6 10. Qe2 ( 10. Ne5 Nc7 (10... Qd6 11. Ndf3 (11. Qf3 b5 12. a3 e6 13. b3 Rfc8 14. Bb2 Rc7 15. b4 cxd4 16. exd4 Rac8 17. a4 Rb8 18. Qd3 Rcb7 19. Nb3 Rb6 20. axb5 Rxb5 21. Na5 Qb6 22. g4 h6 {Prystenski,A (2255)-Marconi,R (2100) ICCF 2008 1-0 (36)}) 11... Ne4 12. Qa4 Nc7 13. Nc6 b5 {0-1 (13) Gonet Boisson,G-Jacquier,L (1861) ICCF 2008}) 11. b3 (11. Qf3 Nce8 (11... e6 12. Re1 (12. b3 Nb5 13. Bb2 Nd6 14. Ng4 Nxg4 15. Qxg4 Rc8 16. Rac1 b5 17. Ba3 b4 18. Bb2 Qa5 19. a4 bxa3 20. Ba1 cxd4 21. b4 Qc7 22. Rc2 Nf5 {0-1 (22) Rekhtman,P-Bleker,F (2139) ICCF 2007}) 12... Nb5 13. dxc5 bxc5 14. e4 Re8 15. exd5 exd5 16. b3 Nd7 17. a4 Nc7 18. Qg3 Nxe5 19. fxe5 Ne6 20. Nf3 d4 21. c4 Re7 22. Rb1 Rb8 23. Bd2 {Öunmaa,A (2104) -Jacewicz,G (1984) ICCF 2010 0-1 (42)}) 12. Qh3 Nd6 13. Ndf3 e6 14. Bd2 Nfe4 15. Be1 Qe8 16. a4 f6 17. Ng4 Qc6 18. Nd2 Nxd2 19. Bxd2 f5 20. Ne5 Bxe5 21. fxe5 Ne4 22. Be1 a5 {Jensen,K (2170)-Duchardt,A (2234) ICCF 2015 0-1 (40)}) ( 11. f5 Rc8 12. Qa4 a5 13. Rf3 Nce8 14. fxg6 fxg6 15. b3 Nd6 16. Bb2 b5 17. Qa3 b4 18. Qa4 cxd4 19. exd4 Nde4 20. Nb1 Nh5 21. Nc6 Qd6 22. Rxf8+ Rxf8 {Domenche Redondo,F (1910)-Bañón Cifuentes,E (2004) ICCF 2014 0-1 (30)}) 11... Nb5 12. Bb2 e6 13. c4 Nd6 14. Qe2 Rc8 15. Rac1 cxd4 16. exd4 Rc7 17. Ba3 Re8 18. c5 bxc5 19. Bxc5 Nfe4 20. b4 Nxd2 21. Qxd2 Ne4 {Roynet,S (2062)-Savon',V (2218) ICCF 2017 0-1 (62)}) (10. b3 e6 11. Ba3 Qe7 12. Qe2 Qb7 13. Rac1 Rfd8 14. Ne5 Rac8 15. g4 b5 16. f5 exf5 17. gxf5 b4 18. Bb2 cxd4 19. cxd4 Re8 20. fxg6 hxg6 21. Ndf3 Ne4 {Rekhtman,P-Rývová,M (2310) ICCF 2007 0-1 (39)}) 10... Nc7 (10... Qc8 11. e4 dxe4 12. Nxe4 Nxe4 13. Qxe4 cxd4 14. Nxd4 e6 15. Be3 Qc4 16. Rfd1 Nc5 17. Qf3 Rad8 18. Qf1 Qa4 19. b3 Qa3 20. Qf3 Rd5 21. Nc6 Rxd1+ 22. Rxd1 { Puertas Covarrubias,F (2099)-Gábris,V (2118) ICCF 2007 0-1 (44)}) 11. dxc5 (11. Ne5 Nce8 12. dxc5 bxc5 13. c4 e6 14. b3 Nd6 15. Bb2 a5 16. Rac1 Qb6 17. Nd3 Rfc8 18. Bxf6 Bxf6 19. Qf3 Nf5 20. Ne5 Qb7 21. e4 Nd4 22. Qe3 dxe4 {Roynet,S (2089)-Norman,N (2182) ICCF 2017 1/2 (35)}) 11... bxc5 12. e4 Ne6 (12... e6 13. e5 Nd7 14. Nb3 a5 15. Be3 Na6 16. Qf2 (16. c4 a4 17. Nc1 Nb6 18. Nd2 dxc4 19. Nxc4 Nxc4 20. Qxc4 Qd5 21. Qe2 f6 22. Nd3 c4 23. Nf2 fxe5 24. Rad1 Qb5 25. fxe5 Nc7 26. Ne4 Bxe5 27. Bh6 Rf5 {Geus,A (2051)-Sepers,G (2059) ICCF 2017 1/2 (36)} ) 16... Qb6 17. Nc1 Rab8 18. Rb1 Qc7 19. Rd1 c4 20. Ba7 Rb7 21. Bd4 Nac5 22. Qh4 Ne4 23. b4 axb4 24. Rxb4 {Roth,P (2005)-Tunega,F ICCF 2008 0-1 (37)}) ( 12... a5 13. exd5 Ncxd5 14. Nc4 Qc7 15. Bd2 a4 16. Nce5 Nd7 17. c4 Nxe5 18. fxe5 Nb4 19. Bc3 Rad8 20. a3 Nc6 21. Rad1 Rxd1 22. Rxd1 Nd8 23. Qe3 Ne6 24. Rd5 {Roynet,S (2089)-Lundberg,K (1970) ICCF 2017 1/2 (30)}) (12... dxe4 13. Nxe4 Nxe4 14. Qxe4 e6 15. Be3 Na6 16. Rad1 Qb6 17. Ne5 Qxb2 18. Nxf7 {1-0 (18) Gultom,P (1562)-Syafrial,N (2095) ICCF 2020}) 13. Ng5 Qc7 (13... Qb6 14. exd5 Nxg5 15. fxg5 Nxd5 16. Rf3 Rad8 17. Nc4 Qa6 18. Be3 Rd6 19. Qf1 Rd7 20. a3 Nxe3 21. Rxe3 e6 22. h4 Rd5 23. Rf3 Qb7 24. Qe2 Rfd8 25. Raf1 {Recasens Sánchez, J-Beltins,G ICCF 2006 1/2 (59)}) 14. Nxe6 fxe6 15. e5 Nd7 16. Qg4 Qb6 17. Nf3 Rf5 18. b3 Raf8 19. Qh4 Re8 20. Be3 Qa6 21. Rad1 Rh5 22. Qf2 Rf5 23. Rfe1 Bh6 24. c4 d4 25. Qh4 dxe3 26. Rxd7 Qxa2 27. Rxe3 Bxf4 28. Red3 Qb1+ 29. Qe1 Qxe1+ 30. Nxe1 Rxe5 31. Nf3 Re2 32. Rxa7 e5 33. Kf1 Rb2 34. Rd5 e4 35. Ng5 Rb1+ 36. Kf2 e3+ 37. Kf3 Rf1+ 38. Ke2 Rf2+ 39. Ke1 Rxg2 40. Ne4 Rxh2 41. Rdd7 Rg2 42. Rxe7 h5 43. Rxe8# {1-0 (43) Roth,P (2005)-Kuchyna,S (2063) ICCF 2007 Bird's Opening with-1...d5}) (4... Bf5 5. Bd3 e6 6. O-O Be7 7. c4 c6 8. Nc3 O-O 9. b3 Nbd7 10. Bb2 Ne4 11. Bxe4 Bxe4 12. Nxe4 dxe4 13. Ne5 f6 14. Nxd7 Qxd7 {Dunks,P (1890)-Knee,J (1788) ICCF 2017 1/2 (32)}) 5. c3 (5. dxc5 Qa5+ 6. Bd2 Qxc5 7. b4 Qb6 8. Nc3 a6 9. Bd3 Bg7 10. O-O Nc6 11. Rb1 O-O 12. Qe1 Rd8 13. Na4 Qc7 14. Bc3 b6 15. Qh4 Bd7 16. Ba1 h6 {Saglione,E (2415)-Iturbide,H (2270) ICCF 2014 1/ 2 (33)}) (5. b3 cxd4 6. exd4 Bg7 7. Bd3 O-O 8. O-O Bg4 9. c3 Nc6 10. Qe1 Qb6 11. Kh1 e6 12. Ne5 Bf5 13. Bxf5 exf5 14. Qd1 Qa5 15. a4 Ne4 16. Rf3 Rac8 { Mogstad,O (2164)-Fremmegaard,J (2197) ICCF 2019 1/2 (118)}) 5... Qb6 6. Bd3 Nc6 7. O-O Bg7 8. b3 Ne4 9. Ne5 Bf5 10. Ba3 cxd4 11. cxd4 Rc8 12. Bxe4 dxe4 13. Nxc6 Rxc6 14. Qd2 h5 15. Bb4 Bf6 {Snijders,J (2111)-Haller,P (2176) ICCF 2018 1/2}) (4. c4 c6 (4... Nc6 5. d4 Bf5 6. cxd5 Nxd5 7. Nc3 Bg7 8. Bc4 Nxc3 9. bxc3 O-O 10. Be2 Na5 11. Ba3 Qd7 12. Bb4 Nc6 13. O-O Nxb4 14. cxb4 Be6 15. Qd2 Bd5 16. Rac1 {Arnold,G (2306)-Koningsveld,M (2306) ICCF 2009 1/2 (31)}) (4... c5 5. cxd5 Nxd5 6. Qc2 (6. Qb3 Nc6 7. Nc3 e6 8. Bb5 Be7 9. Ne5 Bd7 10. Nxd5 exd5 11. Bxc6 Bxc6 12. Nxc6 bxc6 13. O-O O-O 14. Qc2 a5 15. d3 Re8 16. Bd2 a4 17. f5 Bd6 {Manarin,F (1969)-Avellán,G (2285) ICCF 2012 1/2 (27)}) 6... Nc6 7. Bb5 Qb6 8. Nc3 Nxc3 9. Qxc3 Rg8 10. Bxc6+ Qxc6 11. O-O Bg7 12. Ne5 Bd7 13. Nxc6 Bxc3 14. Nxe7 Bxb2 15. Bxb2 Kxe7 16. Ba3 {Bruce,R (2100)-Dam,J (2114) ICCF 2020 1-0 (48) }) 5. Nc3 (5. b3 Bg7 6. Bb2 Bg4 7. Be2 e6 8. O-O O-O 9. Qc2 Nbd7 10. Nc3 Ne4 11. Nd1 Bxb2 12. Qxb2 Qf6 13. d4 Qe7 14. Rc1 a5 15. c5 Kh8 16. Bd3 Bxf3 { Esin,M-Tleptsok,R (2533) ICCF 2018 1/2 (41)}) 5... Bg4 6. Qb3 b6 7. cxd5 cxd5 8. Bb5+ Bd7 9. Nxd5 Nc6 10. Nxf6+ exf6 11. O-O Bg7 12. Qd5 Rc8 13. b3 O-O 14. Ba3 Be6 15. Qxd8 Rfxd8 {Bruce,R (2002)-Lucas,K (1863) ICCF 2019 1-0}) (4. c3 Bg7 5. Na3 O-O 6. Be2 c5 7. O-O Nc6 8. Nc2 Bf5 9. d3 Qb6 10. Bd2 (10. Rb1 Rfd8 11. Na3 c4 12. Nh4 Bxd3 13. Bxd3 cxd3 14. Qxd3 e5 15. f5 g5 16. Qb5 Qxb5 17. Nxb5 gxh4 {Humbert,P-Soldano,G ICCF 2009 0-1 (26)}) 10... Rad8 11. Kh1 a5 12. b3 Rfe8 13. Be1 a4 14. Rb1 axb3 15. axb3 Qc7 {Bito,L (2138)-Nahálka,J (2087) ICCF 2017 1/2 (31)}) 4... Bg7 5. Bb2 O-O (5... Bg4 6. h3 Bxf3 7. Qxf3 O-O 8. g4 e5 9. Bxe5 Ne4 10. Bxg7 Qh4+ 11. Kd1 Kxg7 12. Kc1 Qf6 13. c3 Nd7 14. h4 Rfe8 15. g5 Qc6 16. h5 b5 17. Kb2 {Spiller,P-Saharinen,P (1909) ICCF 2016 1-0 (71)}) 6. Be2 (6. d4 c5 (6... Bg4 7. Be2 Ne4 (7... Nbd7 8. O-O Ne4 9. Nbd2 Ndf6 10. Nxe4 Nxe4 11. Ne5 Bxe2 12. Qxe2 e6 13. c4 c6 14. Rac1 Qa5 15. Qc2 Rac8 16. Rfd1 Bxe5 17. dxe5 a6 18. a3 Qb6 19. Rd3 {Wilson,G (1882)-Másson,K ICCF 2014 1/2}) 8. Nbd2 Nxd2 9. Qxd2 Nd7 10. O-O f5 11. c4 c6 12. Ng5 Bxe2 13. Ne6 Qc8 14. Qxe2 Rf6 15. cxd5 cxd5 16. Rac1 Qb8 17. Nc7 Nb6 18. Rc3 {Beurden,M-Woodhouse,S (1719) ICCF 2015 1-0}) 7. Bd3 (7. Nbd2 Ng4 8. Qe2 cxd4 9. Bxd4 Qc7 10. c4 Bxd4 11. Nxd4 e5 12. Nb5 Qc5 13. cxd5 a6 14. h3 Nxe3 15. Ne4 Qb4+ 16. Nbc3 exf4 17. Qd2 Bf5 18. Bd3 Nd7 {Lindgaard,T-Kuznetsov,Y ICCF 2012 0-1}) (7. c3 Nc6 8. Bd3 cxd4 9. cxd4 Nb4 10. Bb5 a6 11. Bd3 Bg4 12. Be2 Rc8 13. Nbd2 Nc2+ 14. Kf2 Nxa1 15. Qxa1 Qa5 16. Nb1 Ne4+ 17. Kf1 Rc7 18. Ba3 Bxf3 {Grønbech,T (1951) -MacMillen,A (1714) ICCF 2016 0-1}) 7... Nc6 8. O-O cxd4 9. exd4 (9. Nxd4 Qb6 10. Nc3 Bg4 11. Na4 Qxd4 12. exd4 Bxd1 13. Raxd1 Nb4 14. Ba3 Nxd3 15. Rxd3 Rfe8 16. Re1 Rac8 17. Re2 e6 18. Nc5 Rc7 19. c3 Bf8 20. Bb4 Ra8 {Main,T-Donnelly,M ICCF 2012 0-1}) 9... Bh6 10. Ne5 Nxe5 11. fxe5 Ng4 12. Qe1 Bg7 13. Nc3 Nh6 14. Rd1 Bf5 15. Bc1 Bxd3 16. Rxd3 Nf5 17. g4 Nh6 {Beurden,M-MacMillen,A (1715) ICCF 2015 1-0 (29)}) (6. g3 c5 (6... Bg4 7. Bd3 Nc6 8. O-O Nb4 9. Bd4 Nxd3 10. cxd3 Re8 11. Nc3 Qd6 12. Qc2 c6 13. Ne5 Bh3 14. Nxf7 Kxf7 15. Rfe1 Ng4 16. Bxg7 Kxg7 17. d4 Rf8 18. d3 {Molnar,T (1654)-Moir,P (1617) ICCF 2016 0-1 (29)}) 7. Bg2 Nc6 8. O-O (8. Qe2 b6 9. d3 Bb7 10. Nbd2 a5 11. Ne5 e6 12. Nxc6 Bxc6 13. a4 Rc8 14. O-O Qc7 15. Be5 Qb7 16. Rfe1 Ne8 17. Bxg7 Nxg7 18. e4 Rfe8 19. Qf2 Qc7 {Mejrup,S-MacMillen,A (1700) ICCF 2015 1-0 (44)}) 8... Bg4 (8... Bf5 9. Ne5 (9. d3 d4 10. e4 Be6 11. Qe2 Ng4 12. Bc1 Ne3 13. Bxe3 dxe3 14. c3 Qa5 15. Rc1 Bxb3 16. Qxe3 Be6 17. Ng5 Bg4 18. h3 Bd7 19. e5 Rad8 20. Nd2 h6 {Dovrinder,B (2428) -Bellegotti,M (2428) ICCF 2011 1-0 (61)}) 9... Nxe5 (9... Nb4 10. d3 Ng4 11. Qd2 Rc8 12. Na3 Nxe5 13. fxe5 Bh6 14. Qe1 Qb6 15. Kh1 Be6 16. Qe2 Qa6 17. c4 Rfd8 18. d4 cxd4 19. exd4 dxc4 20. bxc4 Bxc4 21. Nxc4 {Ribés Colom,J (2248) -Pallás Muiño,J (2318) ICCF 2018 1/2 (57)}) 10. Bxe5 Rc8 11. Nc3 Qd7 12. d4 Rfd8 13. Qd2 b5 14. dxc5 Rxc5 15. Rad1 Qc8 16. Qd4 Rd7 17. Ne2 Bf8 18. Bxf6 exf6 19. c3 Bg4 20. Rd2 {Pisani,C (2139)-Fernández,E ICCF 2016 0-1 (49)}) (8... Qc7 9. Qe2 Bg4 10. Nc3 e5 11. h3 Bxf3 12. Qxf3 e4 13. Qf2 Rad8 14. Rab1 Rfe8 15. Rfe1 a6 16. a3 b5 17. g4 b4 18. axb4 Nxb4 19. Rbc1 h6 20. Na4 d4 {Vecek,M (2312)-Kolpak,S (2276) ICCF 2013 1/2 (66)}) 9. d3 (9. h3 Bxf3 10. Qxf3 e5 11. Nc3 exf4 12. Nxd5 Nxd5 13. Bxg7 Kxg7 14. Qxd5 fxg3 15. Qxd8 Rfxd8 16. Bxc6 bxc6 17. Rad1 h5 18. h4 Rd7 19. Kg2 Re8 20. Kxg3 c4 {Vecek,M (2323)-Rimsans,A (2258) ICCF 2017 1/2 (26)}) 9... Qd7 10. Nbd2 d4 {0-1 (10) Andreassen,E (2325) -Câmpian,C (2289) ICCF 2005}) (6. Bd3 c5 (6... Ne4 7. Bxg7 Kxg7 8. c4 Nc6 9. cxd5 Qxd5 10. Bxe4 Qxe4 11. Nc3 Qd3 12. Qe2 Nb4 13. Qxd3 Nxd3+ 14. Ke2 Rd8 15. Nd4 Nxf4+ 16. Kf3 Nd3 17. Ke2 Nb4 18. a3 {Rinaldi,M (1696)-Maiorano,R (1803) ICCF 2012 0-1 (39)}) 7. c3 (7. O-O Nc6 8. Nc3 Nb4 (8... e5 9. fxe5 Ng4 10. Na4 Qc7 11. Qe1 c4 12. bxc4 dxc4 13. Bxc4 Ncxe5 14. Nxe5 Nxe5 15. Bb3 b5 16. Nc3 Ng4 17. Qh4 Nxe3 18. dxe3 Bxc3 19. Bxf7+ Rxf7 20. Rxf7 {Baffo,J (2091)-Sutton, J (2067) ICCF 2014 1-0}) (8... a6 9. Ne2 b5 10. c4 dxc4 11. Bc2 cxb3 12. axb3 Bb7 13. Qe1 Nb4 14. Bb1 a5 15. Bc3 Nd3 {Esposito,L (1625)-Langer,R (2420) ICCF 2017 0-1 (32)}) 9. Na4 Nxd3 10. cxd3 b6 11. Rc1 (11. Ne5 Ba6 12. Re1 Rc8 13. Rc1 Qd6 14. Qf3 b5 15. Nc3 b4 16. Nd1 c4 17. dxc4 dxc4 18. Nxc4 Bxc4 19. bxc4 Qxd2 20. Re2 Qd7 21. Nf2 Qc6 22. Qxc6 Rxc6 {Vestergård,S (2136)-Bredenhof,B (2120) ICCF 2011 1/2 (29)}) 11... Ba6 12. Qe2 Rc8 13. Rfe1 Qd7 14. Ne5 Qf5 15. Qf3 Qe6 16. d4 cxd4 17. exd4 Rxc1 18. Rxc1 Rc8 {Manarin,F (1694)-Schumacher,F (2095) ICCF 2009 0-1 (33)}) (7. c4 d4 8. exd4 Nh5 9. g3 Nc6 10. Be4 Bg4 11. Qc2 Bxf3 12. Bxc6 bxc6 13. Rf1 Bg4 14. dxc5 Bf5 15. Qc1 Qd3 16. Nc3 Rae8 17. Qd1 e5 18. Rf3 exf4+ {Rinaldi,M-Harf,H ICCF 2011 0-1}) 7... Nc6 8. O-O a6 9. Bc2 b5 10. d4 cxd4 11. cxd4 Nb4 12. Nbd2 Nxc2 13. Qxc2 Bf5 14. Qd1 Qa5 15. Ne5 Rac8 16. Rf2 Rc2 17. Ndf3 Rfc8 {Rinaldi,M (1696)-Battaglia,R ICCF 2012 0-1 (43)}) ( 6. c4 e6 (6... Nc6 7. cxd5 Nb4 (7... Nxd5 8. Bxg7 Kxg7 9. Be2 Bg4 10. Na3 Bxf3 11. Bxf3 e5 12. fxe5 Nxe5 13. O-O f5 14. Nc4 Nxf3+ 15. Qxf3 Re8 16. g4 fxg4 17. Qxg4 b5 18. Nb2 Re5 19. Kh1 {Pareschi,R (2014)-Borkovec,M ICCF 2009 0-1 (30)}) (7... Qxd5 8. Bc4 Qh5 9. O-O Bg4 10. d4 Ne4 11. Qe1 Rad8 12. Be2 a5 13. h3 Bf5 14. Nc3 Qh6 {0-1 (14) Botocan,C-Ardelean,R (2117) ICCF 2014}) 8. a3 Nbxd5 9. Be2 Bf5 {1/2 (9) Liutaia,L (1969)-Horodyskyi,O (2027) ICCF 2020}) (6... Bf5 7. cxd5 Nxd5 8. Bxg7 Kxg7 9. Bc4 e6 10. Qc1 Qf6 11. Na3 Nc6 12. O-O Rad8 13. h3 Ncb4 14. Bxd5 Nxd5 15. d4 Qe7 16. Nc4 Be4 17. Nfd2 Bd3 18. Re1 {Jung,R (2309) -Pinho,M (2244) ICCF 2018 1/2 (33)}) (6... c5 7. cxd5 Nxd5 8. Bxg7 Kxg7 9. Bc4 b6 10. Nc3 Bb7 11. O-O Nxc3 12. dxc3 Nd7 13. Qc2 Nf6 14. Rad1 Qc7 15. Ne5 Rab8 16. a4 Be4 17. Qe2 h5 18. b4 {Jung,R (2309)-Koch,H (2311) ICCF 2018 1/2 (32)}) 7. g3 c5 8. Bg2 Nc6 9. Ne5 Nxe5 10. Bxe5 b6 11. a4 Bb7 12. O-O Ne4 13. Bxg7 Kxg7 14. Bxe4 dxe4 15. a5 Qe7 16. Nc3 Rad8 17. Qc2 Kg8 {Fister,B (2088) -Sánchez Carmona,G (1925) ICCF 2018 0-1 (38)}) (6. h3 a6 (6... Ne4 7. Bxg7 Kxg7 8. g4 Ng3 9. Rg1 Nxf1 10. Rxf1 Nc6 11. Nc3 h5 12. gxh5 Bxh3 13. Rg1 Bf5 14. Nh4 e6 15. Nxf5+ exf5 16. Qf3 Qh4+ 17. Ke2 Rh8 18. Rh1 {Rinaldi,M (1676) -Evangelisti,M (1635) ICCF 2016 1-0 (51)}) 7. d3 c5 8. Nbd2 d4 9. e4 Nh5 10. g3 Nxg3 11. Rg1 Nh5 12. h4 Nxf4 13. Bc1 Qa5 14. a4 f5 15. h5 fxe4 16. dxe4 Nxh5 17. Bc4+ Kh8 {Gonet Boisson,G-Guerassimov,A ICCF 2008 0-1}) 6... c5 (6... b6 7. O-O Ba6 8. Ne5 Bxe2 9. Qxe2 c5 10. d3 Nfd7 11. Nd2 f6 12. Nef3 Nc6 13. Rae1 e5 14. f5 g5 15. c4 Ne7 16. cxd5 Nxd5 17. d4 cxd4 18. Qc4 {Thommen,J (1628)-Shaw, T (1637) ICCF 2020 (37)}) (6... Nc6 7. O-O Be6 8. Nc3 a6 9. Na4 Rb8 10. Nc5 Bd7 11. Qe1 Re8 12. Qh4 Bf5 13. Bd3 Bxd3 14. Nxd3 Qd7 15. Nde5 Nxe5 16. fxe5 Ne4 17. d3 Nc5 18. Ng5 {Pimmingstorfer,C-Randolph,D (1736) ICCF 2007 1-0 (27)}) ( 6... Bg4 7. O-O c6 (7... c5 8. d3 Nc6 9. Nbd2 (9. Ne5 Nxe5 (9... Bxe2 10. Qxe2 Rc8 11. Nd2 Nxe5 12. Bxe5 Nd7 13. Bxg7 Kxg7 14. Nf3 Nb8 15. c3 Nc6 16. Rae1 e6 17. a3 Qd6 18. b4 Ne7 19. Qb2 Kg8 20. Re2 b5 21. Ra1 {Spagnoli,E (2185)-Hansen, L (2141) ICCF 2015 1/2 (25)}) 10. Bxe5 Bxe2 11. Qxe2 Qd7 12. Nd2 Rad8 13. Nf3 Qc6 14. c4 a5 15. Rac1 b6 16. cxd5 Qxd5 17. d4 Qc6 18. Qb2 Qe4 19. dxc5 bxc5 20. Rfe1 Qb4 {Kaminski,J (2011)-Findiur,I (1975) ICCF 2012 1-0 (54)}) 9... a5 10. a4 d4 11. exd4 cxd4 12. Nc4 Nd5 13. Nfe5 Nxe5 14. fxe5 Bxe2 15. Qxe2 Nc7 { Gultom,P-Hendri Sevano,R ICCF 2017 1/2 (51)}) (7... a5 8. a4 c6 9. Ne5 Bxe2 10. Qxe2 Nbd7 11. d3 Nxe5 12. Bxe5 Nd7 13. Bxg7 Kxg7 14. Nd2 Qb6 15. Kh1 e6 16. e4 Qc5 17. Nf3 dxe4 18. dxe4 Rad8 19. e5 {Gultom,P-Pott,B (2024) ICCF 2017 0-1 (34)}) 8. d3 Nbd7 9. Nbd2 Qb6 10. Nd4 Bxe2 11. Qxe2 Ne8 12. Rab1 Nd6 13. c4 e5 14. fxe5 Nxe5 15. N2f3 Nxf3+ 16. Qxf3 dxc4 17. bxc4 Rae8 18. Bc3 {Masset,J (1909)-Gérard,A (1933) ICCF 2012 0-1 (60)}) (6... Bf5 7. O-O Nc6 8. a3 (8. Ne5 Nxe5 9. Bxe5 c6 10. Nc3 Ne8 11. Bxg7 Kxg7 12. Bf3 Qa5 13. g4 Bd7 14. Qe1 Rd8 15. Kg2 Nf6 16. g5 Ne8 17. e4 d4 {1/2 (17) Wuttke,J (2263)-Sesko,M (2231) ICCF 2010}) 8... Ne8 (8... Qd7 9. Qc1 a6 10. d3 Rfd8 11. Nd4 Nxd4 12. Bxd4 Rac8 13. Nd2 c5 14. Be5 Ng4 15. Bxg4 Bxg4 16. Bxg7 Kxg7 17. h3 Be6 18. Nf3 f6 19. Qd2 Qd6 20. a4 {Welti,M (1931)-Carvaga,R (2132) ICCF 2008 1/2 (45)}) 9. Bxg7 Nxg7 10. Bb5 e6 11. Bxc6 bxc6 12. h3 Qf6 13. Nc3 Ne8 14. Ne5 Nd6 15. Nd7 Qh4 16. Nxf8 Rxf8 17. Kh2 Rb8 18. g4 {Korman,J (1861)-Van Camp,K ICCF 2010 1-0 (25)}) ( 6... Qd6 7. O-O b6 8. c4 Bb7 9. Nc3 e6 10. Rc1 Nc6 11. c5 Qxc5 12. Nb5 Qe7 13. Ne5 Nb4 14. Rxc7 Qd8 15. Rxb7 a6 16. a3 axb5 17. axb4 Qd6 18. Qb1 {Quanzaah,E (2130)-Marpaung,N ICCF 2020 1-0 (29)}) 7. O-O (7. d3 Nc6 (7... d4 8. exd4 Ng4 9. Na3 Ne3 10. Qd2 cxd4 11. Nc4 Nxg2+ 12. Kf2 Ne3 13. Bxd4 Ng4+ 14. Kg3 Bxd4 15. Nxd4 Qxd4 16. Bxg4 Bxg4 17. Kxg4 Nc6 18. a4 Qd5 19. Ne3 {Alozy,F (1998) -Soulas,P (1977) ICCF 2010 0-1 (46)}) 8. O-O d4 (8... Ng4 9. Bxg7 Nxe3 10. Qc1 Nxf1 11. Bxf8 Qxf8 12. Bxf1 d4 13. Nbd2 Bg4 14. h3 Bd7 15. Ne4 b6 16. Ne5 Nxe5 17. fxe5 Be6 18. Qf4 Bf5 19. Re1 Rd8 {Dunks,P (1712)-Olsen,S (1644) ICCF 2014 1-0 (49)}) 9. e4 (9. exd4 cxd4 10. Na3 Nd5 11. Qd2 Qc7 12. g3 Nc3 13. Nc4 b5 14. Nce5 Bb7 15. Bxc3 dxc3 16. Qxc3 Rac8 17. Qd2 Nxe5 18. Nxe5 Qb6+ 19. Rf2 f6 20. Nf3 e5 {Pivirotto,F (1892)-Cantelli,A (2252) ICCF 2018 0-1 (48)}) 9... Ng4 10. Bc1 Ne3 11. Bxe3 dxe3 12. c3 Qa5 (12... e5 13. fxe5 Nxe5 14. Nxe5 Bxe5 15. Qc1 Qh4 16. g3 Bxg3 17. hxg3 Qxg3+ 18. Kh1 Qh3+ {1/2 (18) Walsh,H-Brogden,J ICCF 2009}) 13. Qc1 e5 14. f5 gxf5 15. Qxe3 f4 16. Qc1 Bg4 17. Qa3 a6 18. Qxa5 Nxa5 {Ward,B (1637)-Holt,F (1592) ICCF 2015 1-0 (55)}) (7. Ne5 Nfd7 (7... Qc7 8. Bf3 Nbd7 9. O-O Ne4 10. d4 cxd4 11. exd4 Ndf6 12. c4 Rd8 13. Qe2 Be6 14. g4 Nd6 15. Nd2 Rac8 16. Rac1 Qa5 17. a3 Qa6 18. Rfe1 dxc4 19. bxc4 {Taras,I (1945) -Hristodorescu,D ICCF 2009 1/2}) 8. O-O Nxe5 9. Bxe5 Bxe5 10. fxe5 Nc6 11. d4 cxd4 12. exd4 Qb6 13. c3 Nxe5 14. Nd2 Nc6 15. Kh1 e5 16. dxe5 Nxe5 17. Qe1 Bg4 18. Qg3 Bxe2 {Tauber,H (2288)-Semenov,S ICCF 2005 0-1 (74)}) 7... Nc6 (7... b6 8. c4 (8. Ne5 Bb7 9. Bf3 (9. Qe1 Nc6 10. Nxc6 Bxc6 11. d3 e6 12. Nd2 Ne8 13. Bxg7 Kxg7 14. a4 Nd6 15. Bf3 Qf6 16. g4 Rae8 17. Nc4 dxc4 18. Bxc6 Rc8 19. Bg2 {Green,P (2200)-Meißner,R (2211) ICCF 2019 1/2}) 9... Qc7 10. Qc1 (10. d3 Nbd7 11. Na3 Rad8 12. Qe2 a6 13. c4 dxc4 14. Naxc4 Bxf3 15. Nxf3 b5 16. Ncd2 Rfe8 17. Rac1 Qb6 18. d4 {Ros Padilla,J-Canibal,J (2332) ICCF 2010 1/2 (40)}) 10... Nc6 11. Nxc6 Bxc6 12. d3 Qb7 13. Nd2 Rfe8 14. Rf2 Rad8 15. Nf1 e6 16. Be5 d4 17. e4 h6 18. Bxf6 Bxf6 19. e5 Bg7 {Cox,R (1760)-Honey,S ICCF 2017 1/2 (25)}) 8... Nc6 9. cxd5 Qxd5 10. Nc3 Qd7 11. Qc1 Bb7 12. Nd1 Rac8 13. Nf2 Rfd8 14. Re1 Nb4 15. a3 Bxf3 16. Bxf3 Nd3 17. Nxd3 Qxd3 18. Bc3 Ne4 19. Be2 {Maltais,C (2181)-Mashin,A (2246) ICCF 2018 1/2 (61)}) (7... Bf5 8. Ne5 (8. Qc1 Nc6 9. Ne5 Nxe5 10. Bxe5 Qb6 (10... Qd7 11. d3 Rad8 12. Nd2 Ne8 13. Nf3 b6 14. c4 dxc4 15. Bxg7 Nxg7 16. bxc4 Qc7 17. Qc3 Bd7 18. a4 Nf5 19. Qd2 a5 20. e4 Ng7 21. g3 f6 22. Rf2 {Arnold,G (2221)-Rohde,F (2223) ICCF 2016 1/2 (33)}) (10... Bg4 11. Qe1 Bxe2 12. Qxe2 Nh5 13. Bxg7 Nxg7 14. c4 d4 15. Qf2 e6 16. exd4 cxd4 17. Re1 Nf5 18. g4 Ne7 19. d3 Nc6 20. a3 e5 21. Nd2 f5 22. g5 {Arnold,G (2254)-Bolz,J (2295) ICCF 2016 1/2 (33)}) (10... Ne8 11. Bxg7 Nxg7 12. Bf3 Qd7 13. Nc3 Be6 14. Ne2 Bg4 15. Bxg4 Qxg4 16. Rf3 Qd7 17. Qb2 Rac8 18. Raf1 Nf5 19. Ng3 e6 { Larsen,S (2457)-Kevický,M (2395) ICCF 2012 1/2 (57)}) 11. a4 Rad8 12. d3 Bg4 13. Qe1 Bxe2 14. Qxe2 Nd7 15. a5 Qe6 16. Bxg7 Kxg7 17. Nd2 Qf6 18. e4 Qc3 19. Ra2 e6 {Fister,B (2088)-Rivas Romero,G (2128) ICCF 2018 0-1 (34)}) (8. Na3 Nc6 9. Ne5 Nxe5 10. Bxe5 Qa5 11. Qc1 Ne4 12. Bxg7 Kxg7 13. d3 Nc3 14. Bf3 f6 15. Re1 Be6 16. Nb1 Nxb1 17. Rxb1 Rad8 18. e4 Rfe8 19. Re2 Qc7 {Zhdanenia,K (2299) -Lopukhovich,K ICCF 2017 1/2 (43)}) (8. d3 d4 9. e4 Be6 10. h3 (10. Ng5 Bc8 11. c4 h6 12. Nh3 Bxh3 13. gxh3 e5 14. f5 Nc6 15. fxg6 fxg6 16. Nd2 Nh7 17. Nf3 Ng5 18. Kg2 Nxf3 19. Bxf3 {Ulyanov,O-Ilyin,P (2281) ICCF 2013 0-1 (31)}) 10... Qc7 11. Bc1 Nc6 12. Qe1 Rad8 13. Bd1 b5 14. Qh4 Bd7 15. Nbd2 Bc8 16. a4 a6 17. Re1 Rde8 18. Nf1 e5 19. fxe5 Nd7 {Arnold,G (2248)-Perry,W (2235) ICCF 2018 1-0 (76) }) (8. Nh4 Qd7 9. Nxf5 Qxf5 10. d3 Nc6 11. Nd2 Qd7 12. a3 e6 13. Nf3 Rac8 14. Qe1 Qe7 15. Rb1 b5 16. Ng5 h6 17. Nf3 Rfd8 18. Bxf6 Qxf6 19. Qg3 a6 {Walsh,H (1633)-Birrell,I (1616) ICCF 2017 0-1 (47)}) 8... Nfd7 9. d3 (9. d4 Nc6 (9... cxd4 10. exd4 Nxe5 11. fxe5 (11. dxe5 Nc6 12. Rf2 f6 13. exf6 Bxf6 14. Bxf6 exf6 15. Nc3 d4 16. Bc4+ Kg7 17. Ne2 Re8 18. Ng3 Qa5 {Capron,M (1946)-Stepán,J (1926) ICCF 2018 1/2 (27)}) 11... Nc6 12. Na3 Be4 13. Bf3 f6 14. Bxe4 dxe4 15. Qe2 f5 16. c3 a6 17. Nc2 Rc8 18. c4 b5 19. Rfd1 Qd7 20. Rab1 Qb7 21. c5 { Wuttke,J (2263)-Moskvichev,V (2036) ICCF 2010 0-1 (39)}) 10. Nxc6 bxc6 11. Nc3 cxd4 12. exd4 Rc8 13. g4 Be4 14. Nxe4 dxe4 15. Qc1 c5 16. dxc5 Bxb2 17. Qxb2 Nxc5 18. Rad1 Qb6 19. Kh1 Ne6 20. f5 Nf4 {Zimmermann,F (2369)-Hameister,R (2288) ICCF 2007 1/2 (57)}) 9... Nxe5 10. fxe5 Nc6 11. d4 f6 12. exf6 Bxf6 13. c3 Bg5 14. Bc1 Qd6 15. Na3 a6 16. Nc2 e5 17. Ba3 Bxc2 18. Qxc2 Bxe3+ 19. Kh1 { Gultom,P-Hanif,M ICCF 2013 0-1 (39)}) (7... d4 8. Na3 Nd5 9. Nc4 Nc6 10. Nfe5 Qc7 11. a4 Rd8 12. e4 Nc3 13. Bxc3 dxc3 14. d3 Nd4 15. Nf3 Nxe2+ 16. Qxe2 Bg4 17. h3 Bxf3 18. Qxf3 e6 19. Rae1 {Clayton,G (1646)-Ramsden,J (1954) ICCF 2014 1/2 (28)}) (7... Qc7 8. Qe1 Nc6 9. Na3 a6 10. c4 d4 11. Nc2 Nh5 12. Qc1 Rd8 13. Nce1 a5 14. Nd3 a4 15. bxa4 Bf5 16. Nde5 Nxe5 17. Nxe5 Bxe5 18. fxe5 Ng7 19. d3 {Nordin,N (1946)-Struzka,V (1950) ICCF 2019 0-1 (34)}) 8. Ne5 (8. Bb5 Qb6 (8... Bd7 9. Bxc6 (9. d3 Qb6 10. c4 dxc4 11. Bxc4 Rad8 12. Na3 a6 13. Nc2 Bf5 14. Qe2 Na5 15. d4 Nxc4 16. Qxc4 Rc8 17. Na3 cxd4 18. Qxd4 Qxd4 19. Bxd4 Rfd8 20. Nc4 Be4 {Bassanini,M-Hrzica,R ICCF 2004 0-1 (51)}) 9... Bxc6 10. Qe1 b5 11. Ne5 Bb7 12. d3 Ng4 13. Nd2 Nxe5 14. fxe5 d4 15. exd4 cxd4 16. Qg3 Rc8 17. Rf2 Rxc2 18. Nf3 Rxf2 19. Qxf2 Bxf3 20. Qxf3 {Pitono,P-Pope,P (1638) ICCF 2017 0-1 (51)}) 9. Bxc6 Qxc6 10. d3 (10. Ne5 Qe6 (10... Qc7) 11. Qc1 b6 12. d3 Nd7 13. Nxd7 Bxb2 14. Qxb2 Qxe3+ 15. Kh1 Bxd7 16. Nc3 Qd4 17. Rae1 e6 18. a4 Rfe8 19. Qa1 e5 20. fxe5 Rxe5 21. Rxe5 Qxe5 {Kircher,C-Zaas,J (2181) ICCF 2017 0-1 (33)}) 10... b5 11. Nbd2 Rd8 (11... a5 12. c4 Rd8 13. Qe2 dxc4 14. bxc4 b4 15. Rab1 Qd6 16. d4 cxd4 17. exd4 Bg4 18. Rbe1 e6 19. Qe3 Bxf3 {Kaminski,J (1970)-Annoni,R ICCF 2016 1-0 (33)}) 12. Qe2 a6 13. a4 Bf5 14. Ne5 Qb6 15. Ndf3 Ng4 16. h3 Nxe5 17. Bxe5 f6 18. Bc3 b4 19. Bb2 Rac8 {Nielsen,J (1983)-Kries,Y (2033) ICCF 2010 0-1 (42)}) (8. a3 d4 9. Ra2 a6 10. Bd3 e5 11. fxe5 Ng4 12. exd4 cxd4 13. Be4 Ncxe5 14. h3 f5 15. hxg4 fxe4 {0-1 (15) Ulyanov,O-Ilyasov,A (2303) ICCF 2013}) (8. Qe1 d4 (8... Bf5 9. Na3 a6 10. c4 d4 11. exd4 Ne8 12. d3 Nxd4 13. Nxd4 Bxd4+ 14. Bxd4 Qxd4+ 15. Rf2 Rd8 16. Nc2 Qd6 17. Ne3 Bc8 18. f5 Nf6 19. Rd1 b6 20. fxg6 {Sperandio,A (2010)-Meincke,A (2292) ICCF 2011 0-1 (33)}) 9. Na3 Nd5 10. Bc4 a6 11. Bxd5 Qxd5 12. Nc4 Qd8 13. Rc1 Bf5 14. e4 Bc8 15. c3 b5 16. Nce5 Nxe5 17. fxe5 d3 18. Ba3 Qc7 19. Qe3 c4 {Riihimäki,V-Lüthi,H (2100) ICCF 2005 1-0 (33)}) (8. Nc3 b6 (8... d4 9. exd4 (9. Na4 Qd6 (9... b6 10. Bb5 Bb7 11. Bxc6 Bxc6 12. exd4 Nh5 13. dxc5 Bxb2 {0-1 (13) Byrnes,J (1634)-Medina,M ICCF 2016}) 10. Bb5 (10. Ba3 b6 11. exd4 Nxd4 12. Nxd4 Qxd4+ 13. Kh1 Ne4 14. Bb2 Nf2+ 15. Rxf2 Qxf2 {0-1 (15) Byrnes,J (1634)-Arnold,H (2315) ICCF 2016}) 10... Bd7 11. c3 (11. Ba3 b6 12. c3 dxe3 13. dxe3 Qc7 14. Qe2 e5 15. Rad1 exf4 16. exf4 Rfe8 17. Qd2 {Carmona Poyato,Á-Ryvkin,M (2328) ICCF 2014 0-1 (31)}) 11... dxe3 12. dxe3 Rad8 13. Qxd6 exd6 14. Rad1 a6 15. Bd3 b5 16. Nb6 Be6 17. c4 Rb8 18. Bxf6 Bxf6 19. Nd5 Bxd5 20. cxd5 Nb4 {Chouraqui,G (2258)-Sesko,M (2237) ICCF 2011 1/ 2 (75)}) 9... cxd4 10. Nb5 Nh5 11. Ne5 (11. Ne1 Qb6 12. Bd3 Nb4 13. Na3 Nxd3 14. Nxd3 Be6 15. f5 Bd5 16. Qe2 Rfe8 17. Nc4 Bxc4 18. bxc4 e5 19. c5 Qc6 20. Rae1 e4 21. fxg6 fxg6 22. Nf2 d3 {Riding,C (1726)-Pritchard,O (2103) ICCF 2018 0-1 (41)}) 11... Nxf4 12. Rxf4 (12. Nxc6 Nxe2+ 13. Qxe2 bxc6 14. Bxd4 Bxd4+ 15. Nxd4 Qxd4+ 16. Qe3 Qxe3+ 17. dxe3 Bf5 18. c4 a5 19. h3 Rfb8 20. g4 {Vila Nova, R (1388)-Underwood,W (1871) ICCF 2013 0-1 (33)}) 12... Bxe5 13. Rf1 d3 14. Bxe5 Qb6+ 15. Kh1 Qxb5 16. Bxd3 Qxe5 17. Bc4 b5 18. Bd3 Be6 19. Qf3 Rac8 20. Rae1 { Riding,C (1726)-Cook,P (2096) ICCF 2018 0-1 (39)}) (8... a6 9. Na4 (9. Qe1 b5 10. Qg3 d4 11. Nd1 Nb4 12. Bd3 dxe3 13. Nxe3 Nh5 14. Qh4 Bxb2 15. g4 Bxa1 16. gxh5 Bf6 17. Qg3 Nxd3 18. hxg6 fxg6 19. cxd3 {Riding,C (1702)-Gibbons,R (2282) ICCF 2019 0-1 (29)}) 9... b6 10. c4 e6 11. d4 Ne4 12. Qc1 dxc4 13. dxc5 Nxc5 14. Bxg7 Kxg7 15. Nxc5 bxc5 16. Qxc4 Qb6 17. Rfc1 Bb7 18. Qxc5 Qxc5 19. Rxc5 Rfd8 20. Rac1 {Cooper,N (1964)-Lam Choong Wai,E (1962) ICCF 2015 1-0 (44)}) ( 8... Ne4 9. Na4 Bxb2 10. Nxb2 Bf5 11. c4 d4 12. Bd3 dxe3 13. dxe3 Nb4 14. Bxe4 Bxe4 15. Qe2 f6 16. Rfd1 Qa5 17. Na4 Rad8 18. Ne1 Nc6 19. Nd3 Rxd3 20. Rxd3 { Gaedtke,T-DiJoseph,J ICCF 2014 1/2 (25)}) 9. Qe1 Bb7 10. Nd1 Nb4 11. Qh4 Nxc2 12. Rc1 Nb4 13. a3 Nc6 14. Nf2 Rc8 15. Rfd1 e6 16. Ne5 Ne4 17. Qxd8 Rfxd8 18. Nxc6 Rxc6 19. Bxg7 Kxg7 {Thommen,J (1840)-Polyakov,E ICCF 2010 0-1}) (8. c3 Qb6 9. Qc1 Rd8 10. d4 cxd4 11. cxd4 Bf5 12. Na3 Nb4 13. Qd2 Rdc8 14. Bc3 Ne4 15. Qb2 Rxc3 16. Nd2 Rxe3 17. Rae1 Bxd4 18. Qb1 Rh3+ 19. Kh1 Ng3# {Humbert, P-Veroni,A (1927) ICCF 2008 0-1}) 8... d4 (8... Qc7 9. Nxc6 (9. Nc3 a6 (9... Nxe5 10. Nb5 Qc6 11. Bxe5 (11. fxe5 Ne4 12. c4 dxc4 13. bxc4 a6 14. Na3 (14. Nc3 Bxe5 15. Nd5 Qd6 16. Bxe5 Qxe5 17. d4 Qd6 18. Bf3 Ng5 19. Rb1 b5 20. Nxe7+ Qxe7 21. Bxa8 Bf5 22. e4 Nxe4 23. Bxe4 Qxe4 24. Rc1 cxd4 25. c5 d3 {Harangus,E (1979)-Kucera,J ICCF 2009 0-1 (66)}) 14... Qc7 15. d4 Bf5 16. Bd3 cxd4 17. Bxe4 Bxe4 18. exd4 f6 19. Qe2 f5 20. Nb1 b5 21. Nd2 Bc6 22. Nb3 e6 {Öunmaa,A (2056) -Chukanov,I (2182) ICCF 2009 0-1 (41)}) 11... Bf5 (11... Ne8 12. Bxg7 Kxg7 13. a4 a6 14. Nc3 Nf6 15. Bf3 Be6 16. Qe2 Rad8 17. d3 Qc7 18. Qd2 d4 19. exd4 cxd4 20. Ne4 Nd5 21. g3 h6 22. Rac1 Rc8 23. Rfe1 {Daven,J-Henderson,M ICCF 2009 0-1 (26)}) (11... Ne4 12. Bxg7 Kxg7 13. d3 Nf6 14. c4 Bf5 {Shannon,P (2026) -Stepanic,S ICCF 2012 0-1}) 12. Rc1 (12. c4 Rfd8 13. d4 a6 14. Nc3 cxd4 15. exd4 b5 16. c5 b4 17. Na4 Ne4 18. Bxg7 Kxg7 19. Rc1 Qf6 20. Bf3 {Kaminski, J-Monteiro,U (1898) ICCF 2007 1/2 (40)}) 12... Rfd8 13. d4 Ne4 14. Bxg7 Kxg7 15. c4 dxc4 16. bxc4 a6 17. d5 Qf6 18. Na3 Nc3 19. Qd2 Nxe2+ 20. Qxe2 e6 21. Rfd1 {Lilleeng,A (2114)-Coplin,L (2411) ICCF 2009 0-1 (72)}) (9... Be6 10. Na4 b6 11. Bf3 Nxe5 12. Bxe5 Qd7 13. Nc3 Rac8 14. Qe2 Rfd8 15. Rae1 c4 16. b4 Bf5 17. Rc1 Be4 18. d3 Bxf3 19. Qxf3 cxd3 20. cxd3 Ng4 21. Bxg7 {Guinefolleau,M (2017)-Calvo,R (2250) ICCF 2016 0-1 (48)}) (9... Bf5 10. Na4 (10. g4 Be6 11. Na4 b6 12. Bf3 Nxe5 13. Bxe5 Qd7 14. g5 Ne8 15. Bxg7 Nxg7 16. Qe2 Rac8 17. Nc3 d4 {Pimmingstorfer,C-Gorokhov,D ICCF 2009 0-1 (29)}) 10... b6 11. d3 b5 12. Nxc5 Nxe5 13. fxe5 Qxc5 14. Bd4 Qc6 15. exf6 Bxf6 16. Bxf6 exf6 17. Bf3 Rac8 18. Rc1 Qb6 19. Re1 Rfe8 20. Qd2 d4 21. e4 {Öunmaa,A (2056)-Sanz Vélez,A (2300) ICCF 2009 1/2 (59)}) (9... Rd8 10. Nxc6 Qxc6 11. Bf3 Be6 12. Ne2 Rac8 13. d3 b5 14. Qe1 Bg4 15. a4 b4 16. Rd1 a5 17. Qh4 Qe6 18. Qf2 Bxf3 19. Qxf3 Ng4 20. Bc1 f5 21. Rfe1 {Nordström,Ö (2159)-Olsson,S (2476) ICCF 2013 0-1 (35)}) 10. Nxc6 ( 10. Na4 b6 11. Nxc6 Qxc6 12. c4 b5 13. cxd5 Nxd5 14. Bxg7 Kxg7 15. Nb2 Rd8 16. Bf3 Qd6 17. Rc1 Be6 18. Bxd5 Bxd5 19. d3 Bb7 20. Rc2 Rac8 21. Qg4 f5 {Öunmaa,A (2056)-Cantelli,A (2296) ICCF 2009 1/2 (28)}) 10... Qxc6 11. Bf3 (11. d3 d4 12. Bf3 Qd6 13. Na4 Rb8 14. e4 Qxf4 15. Nxc5 b6 16. Bc1 Qe5 17. Na4 b5 18. Nb2 Be6 19. g3 Qc5 20. Bd2 {Daven,J-Bedard,E ICCF 2009 0-1 (29)}) 11... Be6 (11... e6 12. Ne2 b5 13. Qe1 Bb7 14. Qh4 Ne4 15. Bxg7 Kxg7 16. Rad1 Qb6 17. d3 Nd6 18. g4 h6 19. Ng3 c4 20. d4 Rae8 21. Ne2 Qa5 22. Nc1 Qa3 23. Qf2 {Shannon,P (2026) -Thomas,G (1898) ICCF 2012 0-1 (37)}) 12. Ne2 Rfd8 13. c4 (13. Qe1 Rac8 14. c4 Qd7 15. cxd5 Bxd5 16. Bxd5 Qxd5 17. Bc3 Ne4 18. Bxg7 {1-0 (18) Shannon,P (1972) -Carr,J ICCF 2013}) 13... Qd7 14. cxd5 Bxd5 15. d4 Qe6 16. Qc1 Ne4 17. dxc5 Bxb2 18. Qxb2 Nxc5 19. Qc1 Nd3 20. Nd4 Qb6 {Nachtigall,F (1913)-Urpilainen,E (2097) ICCF 2018 0-1 (26)}) (9. d3 d4 (9... Ne8 {0-1 (9) Borisek,A (1611) -Bajda,R (2036) ICCF 2007} 10. d4 {1-0 (10) Gultom,P-Azamfirei,R ICCF 2016} Bf5 (10... Nd6 11. Nc3 e6 12. dxc5 Nf5 13. Nb5 Qe7 14. Nxc6 bxc6 15. Bxg7 Kxg7 16. Nd6 Nxd6 17. cxd6 Qxd6 18. c4 a5 19. Qd4+ Kg8 20. Rfc1 Ba6 21. Bf3 Rfc8 22. Rc2 {Chouraqui,G (2258)-Dorer,M (2447) ICCF 2011 1/2 (29)}) 11. g4 Be4 12. Nc3 Rd8 13. Nxe4 dxe4 14. Nxc6 Qxc6 15. Qd2 Nc7 16. Rad1 b5 17. c3 Rd7 18. g5 Rfd8 19. Bg4 e6 20. Rc1 Qb7 21. b4 c4 22. a4 {Heß,H (2358)-Corbat,P (2131) ICCF 2005 1/ 2 (27)}) 10. Nxc6 Nd5 11. Ne5 Nxe3 12. Qd2 Nxf1 13. Bxf1 f6 14. Nc4 b5 15. Qa5 Qb8 16. Ncd2 Qb6 17. Qxb6 axb6 18. g3 Bb7 19. Bh3 f5 20. a4 bxa4 {Trofimov,V (2272)-Chernushich,M ICCF 2007 1-0 (42)}) (9. Na3 a6 (9... Rd8 10. Qc1 a6 11. c4 d4 12. d3 Nxe5 13. fxe5 Bh6 14. Nc2 Qxe5 15. Qd2 Bg4 16. Bxg4 Nxg4 17. g3 dxe3 18. Bxe5 exd2 {0-1 (18) Gultom,P (1758)-Lubis,E ICCF 2018}) 10. c4 (10. Bf3 Ne4 11. c4 Nxe5 12. fxe5 Bxe5 13. Bxe5 Qxe5 {0-1 (13) Borisek,A (1611) -Komac,J ICCF 2007}) 10... Be6 11. d3 Rfd8 12. Qc1 d4 13. Nxc6 Qxc6 14. exd4 cxd4 15. Nc2 Ng4 16. Bf3 Qc7 17. h3 Nh6 18. Qd2 Nf5 19. Be4 Ng3 20. Rf3 Bh6 { Kircher,C-McLaughlin,E (1681) ICCF 2011 1-0 (39)}) (9. c4 dxc4 10. bxc4 Ne4 11. Nd3 Bf5 12. Bxg7 Kxg7 13. Qc2 Nf6 14. Qb2 Qb6 15. Qc1 Rad8 16. Nf2 e5 17. g4 Be6 18. fxe5 Nd7 19. Nc3 Ncxe5 20. Rb1 Qc6 {Oaker,W (2252)-Rawlings,A (2203) ICCF 2006 1/2 (44)}) (9. Bf3 Ne4 (9... Rd8 10. c4 (10. d3 Ne8 11. d4 Bf5 12. Nc3 Nf6 13. Qe2 cxd4 14. Nb5 Qc8 15. Nxd4 Nxd4 16. Bxd4 Qxc2 17. Qb5 Qc7 18. Rac1 Qb8 19. Bc5 Bf8 20. g4 Be6 21. Qb4 Ne4 {Leite,D (2410)-Deforel,J (2146) ICCF 2008 0-1 (79)}) 10... Bf5 11. Na3 Nb4 12. d4 dxc4 13. bxc4 Nd7 14. Qb3 Nxe5 15. fxe5 Qb6 16. g4 Be6 17. d5 Bd7 18. Rf2 Rf8 19. Nb5 a6 20. Nc3 Bxe5 21. Ne4 {Dearnley,A (2294)-Kochemasov,A (2314) ICCF 2006 1/2 (54)}) 10. Nd3 (10. d4 Bf5 11. c4 cxd4 12. exd4 dxc4 13. bxc4 Rad8 14. g4 Nxe5 15. fxe5 Bxg4 16. Bxg4 Bxe5 17. Kg2 Bxd4 18. Bxd4 Qxc4 19. Be2 Qxd4 20. Qxd4 Rxd4 {Schmidt,J (2172) -Beltins,G (1867) ICCF 2013 0-1 (63)}) 10... Bxb2 11. Nxb2 Nf6 12. g4 d4 13. g5 Ne8 14. Qe2 e5 15. Bxc6 bxc6 16. exd4 exd4 17. Na4 Nd6 18. Nxc5 Bh3 19. Rc1 Rae8 20. Qf3 Qc8 {Alozy,F (1998)-Soldano,G ICCF 2010 0-1 (26)}) 9... Qxc6 10. Bf3 (10. Be5 Rd8 11. Bf3 Be6 (11... Bf5 12. d3 Qe6 13. Qe1 Bg4 14. Nd2 Rac8 15. a4 a6 16. a5 Bxf3 17. Rxf3 Ne8 18. Bxg7 Nxg7 19. e4 Qf6 20. h3 Qd4+ 21. Rf2 { 1-0 (21) Maltais,C (2181)-Freeman,M (2296) ICCF 2018}) 12. a4 Qd7 13. Qe1 Rac8 14. d3 b6 15. h3 Ne8 16. Bxg7 Nxg7 17. Nd2 c4 18. bxc4 dxc4 19. d4 c3 20. Nb1 Bd5 21. Bxd5 Qxd5 {Fister,B (2257)-Pilkin,E (2253) ICCF 2015 0-1 (25)}) 10... b6 (10... Be6 11. d3 (11. Qe2 Qd7 12. d3 (12. Be5 Rac8 13. Nc3 Rfd8 14. Rae1 Ne8 15. e4 dxe4 16. Nxe4 Bxe5 17. fxe5 Qd4+ 18. Qf2 c4 19. Re3 Ng7 20. c3 Qxe5 21. b4 b6 22. Nc5 Qc7 23. Nxe6 fxe6 {Nicotera,A-Mroczek,J (2165) ICCF 2011 1/2 (29)}) (12. d4 cxd4 13. Bxd4 Bg4 14. Nd2 Rac8 15. Rac1 b6 16. c4 dxc4 17. Nxc4 Bxf3 18. Qxf3 Qd5 19. Rfd1 Rfd8 20. Qxd5 Nxd5 21. Bxg7 Kxg7 22. Kf2 Nb4 23. Rxd8 Rxd8 {Wuttke,J (2263)-Everitt,G (2002) ICCF 2010 1/2 (28)}) 12... d4 13. Nd2 Nd5 14. Bxd5 Bxd5 15. e4 Bc6 16. Rae1 b5 17. f5 a5 18. Rf2 a4 19. Qg4 axb3 20. axb3 Ra2 21. Rb1 Bh6 22. Nf1 Qd6 {Thommen,J (1662)-Prentice,J ICCF 2015 1-0 (27)}) 11... Qd7 (11... Rac8 12. Qe1 Rfd8 13. Nd2 Qa6 14. Be5 c4 15. bxc4 dxc4 16. d4 c3 17. Nb3 Bc4 18. Rf2 b5 19. Bxf6 exf6 20. Qxc3 f5 21. Qa5 Qxa5 22. Nxa5 Re8 23. Nxc4 {Wuttke,J (2250)-Heinemann,C (2142) ICCF 2010 1/2 (27)}) (11... Rad8 12. Qe2 b6 13. Na3 Qd7 14. Rae1 b5 15. e4 dxe4 16. dxe4 b4 17. Nc4 Bxc4 18. Qxc4 Nxe4 19. Bxg7 Nd2 20. Qxc5 Kxg7 21. Rxe7 Qd4+ 22. Qxd4+ Rxd4 23. Rfe1 {Roig García,J (1781)-Francisco Sandoval,M (2151) ICCF 2018 0-1 (56)}) 12. Be5 (12. Qe1 Rac8 (12... Rfd8 13. Nd2 Rac8 14. a4 b6 15. Rd1 Ng4 16. Bxg7 Kxg7 17. h3 Nh6 18. e4 dxe4 19. Bxe4 Nf5 20. Bxf5 Bxf5 21. Nc4 Be6 22. Ne3 Qd4 23. Qg3 Kh8 24. Kh2 {Arnold,G (2210)-Bernal Caamaño,J (2095) ICCF 2015 1-0 (56)}) 13. a4 Rfd8 14. Na3 Bg4 15. e4 Bxf3 16. Rxf3 Ne8 17. Bxg7 Nxg7 18. exd5 Qxd5 19. Re3 Nf5 20. Re4 e6 21. Nc4 b6 22. Qf2 Nd4 23. Rae1 h5 {Fister,B (2305) -Shapiro,V (2365) ICCF 2014 1/2 (49)}) 12... b6 (12... Ng4 13. Bxg7 Kxg7 14. Qe1 Rac8 15. Nd2 Rfd8 16. Bxg4 Bxg4 17. Qh4 b5 18. Rae1 c4 19. Nf3 Bxf3 20. Rxf3 cxd3 21. cxd3 e6 22. Rf2 h5 23. Ref1 Qd6 24. e4 {Menten,R (2003)-Walczak, P (2189) ICCF 2007 0-1 (36)}) 13. Qe2 Rad8 14. Nd2 Ne8 15. Bxg7 Nxg7 16. Qf2 Qc7 17. g3 Nf5 18. Rfe1 d4 19. e4 Nh6 20. a4 Kg7 21. Rab1 Rfe8 22. Qg2 { Fister,B (2305)-Grebenshchikov,A (2338) ICCF 2014 1/2 (48)}) (10... Rd8 11. Qe2 (11. c4 Be6 12. Bxf6 Bxf6 13. Nc3 Qd7 14. cxd5 Bxc3 15. dxc3 Bxd5 16. c4 Bc6 { 1/2 (16) Geus,A (2051)-Koopmans,P (1856) ICCF 2017}) (11. a4 b6 12. d3 Bb7 13. Na3 Ne8 14. Bxg7 Nxg7 15. Qe2 Qf6 16. Nc4 dxc4 17. Bxb7 Rab8 {Di Pietro,R (1635)-Maffioletti,F ICCF 2014 0-1 (50)}) 11... Qe6 (11... Be6 12. Be5 (12. d3 Qd7 (12... Rac8 13. Nd2 b5 14. c4 Qa6 15. Rfd1 bxc4 16. dxc4 dxc4 17. Be5 Kf8 18. Nxc4 Nd5 19. Bxg7+ Kxg7 20. Qf2 f6 21. f5 Bf7 22. fxg6 hxg6 23. e4 Nb6 24. Bg4 {De Smet,K (2196)-Kuosa,N ICCF 2007 1/2 (64)}) 13. Nd2 Rac8 14. a4 (14. Rfe1 b5 15. a4 c4 16. Bd4 cxd3 17. cxd3 b4 18. Rac1 Ne8 19. Bxg7 Kxg7 20. d4 Qd6 21. g4 Rc3 22. Nb1 Rc7 23. Rxc7 Qxc7 24. Qd2 Qd7 25. h3 h5 {Richter, F-Maurya,S ICCF 2020 0-1 (32)}) 14... b6 15. Rfe1 (15. Be5 Ne8 16. Bxg7 Kxg7 17. e4 Nf6 18. exd5 Nxd5 19. Nc4 f6 20. g3 Bh3 21. Rfe1 e6 22. Qd2 h5 {Fister, B (2293)-Vaillant,F (2168) ICCF 2015 1/2 (31)}) 15... h5 16. h3 d4 17. Nc4 Qc7 18. Ne5 Nd5 19. Bxd5 Bxd5 20. Qf2 Ba8 21. Re2 Qd6 22. Nc4 Qd7 23. e4 Bb7 { Fister,B (2303)-Engelhardt,G (2368) ICCF 2010 1/2 (36)}) 12... Qd7 13. d3 Rac8 14. c4 (14. Nd2 Ng4 15. Bxg7 Kxg7 16. h3 Nf6 17. Rad1 Qc7 18. c4 Rd7 19. g4 Rcd8 20. g5 Ne8 21. cxd5 Bxd5 22. Bg4 Rd6 23. Rf2 Kg8 24. e4 Bc6 25. Nc4 Rd4 { Dovrinder,B (2428)-Pakènas,P (2469) ICCF 2012 0-1 (41)}) 14... Ne8 15. Bxg7 Nxg7 16. g4 a6 17. Nd2 b5 18. Rfd1 Qc7 19. cxd5 Bxd5 20. Ne4 Qb6 21. Rac1 { 1/2 (21) Andreassen,E (2157)-Lindhom,E (2229) ICCF 2010}) (11... Bf5 12. d3 Qd7 13. Nd2 Rac8 14. Rad1 Bg4 15. c4 d4 16. exd4 cxd4 17. Rde1 Bf5 18. Ne4 Nxe4 19. dxe4 d3 20. Qd2 Bxb2 21. Qxb2 Bg4 22. Bxg4 Qxg4 23. Rf2 {Geus,A-Gool,J (2032) ICCF 2007 1/2 (45)}) 12. Na3 Bd7 13. c4 Bc6 14. d3 a5 15. cxd5 Nxd5 16. Bxg7 Kxg7 17. Nc4 a4 18. bxa4 Rxa4 19. a3 b5 20. Bxd5 Bxd5 21. Nb2 Ra6 22. Qd2 { Engelhardt,E (2126)-Efremov,A ICCF 2007 1/2 (33)}) (10... Bf5 11. a4 (11. d3 Rad8 (11... Qd7 12. Qe2 Rac8 13. Nd2 b5 14. Be5 (14. Rfd1 d4 15. e4 Be6 16. a4 b4 17. Nc4 Ne8 18. Rf1 Rb8 19. Bc1 Nd6 20. Nxd6 exd6 21. Qf2 f5 22. exf5 Rxf5 23. Bd2 Rff8 24. Rae1 d5 25. Re2 Bf5 {Andreassen,E (2317)-Morley,P (2270) ICCF 2009 1/2 (46)}) 14... c4 15. bxc4 bxc4 16. dxc4 Rfd8 17. Rac1 dxc4 18. Nb1 Be4 19. Nc3 Bxf3 20. Qxf3 Qe6 21. Kh1 Nd5 22. Bxg7 Kxg7 23. e4 {Andreassen,E (2317) -Taksrud,V (2049) ICCF 2009 1/2 (29)}) (11... Rfd8 12. Nd2 a5 13. Qe2 a4 14. Rfd1 Qd7 15. Be5 Ne8 16. Bxg7 Nxg7 17. g4 Be6 18. c4 Qd6 19. cxd5 Bxd5 20. Nc4 Bxf3 21. Qxf3 Qe6 22. bxa4 Rxa4 23. Rab1 {Ramos Mora,J (1896)-Koshmak,I (2266) ICCF 2013 0-1 (36)}) 12. Qe2 b5 13. Be5 c4 14. bxc4 bxc4 15. Nc3 Bg4 16. d4 Bxf3 17. Qxf3 Ne4 18. Bxg7 Kxg7 19. Nxe4 dxe4 20. Qe2 Rb8 21. Rab1 Rb6 22. f5 f6 {Stanishevski,A (2090)-Glushenkov,S (2297) ICCF 2014 0-1 (35)}) 11... Rfd8 ( 11... Be4 12. d3 Bxf3 13. Qxf3 Ne8 (13... Rad8 14. Nd2 Ne4 15. Nxe4 dxe4 { 0-1 (15) Leite,D (2410)-Pineda,J (2382) ICCF 2008}) 14. Bxg7 Nxg7 15. Nc3 Rad8 16. e4 e6 17. e5 Nf5 18. g4 Nd4 19. Qf2 f6 20. Qg2 fxe5 21. fxe5 Qc7 22. Nb5 Qxe5 23. Nxd4 {Mitel,C-Kaminski,J (1958) ICCF 2009 0-1 (38)}) 12. d3 Rac8 13. Qe2 Qd7 14. Nd2 b6 15. Rfe1 h5 16. Be5 Ng4 17. Bxg7 Kxg7 18. h3 Nf6 19. Rad1 Qc7 20. Qf2 Bd7 21. Qh4 e5 22. e4 {García Rosales,J (1848)-Lane,N ICCF 2013 1-0 (39)}) (10... Qb6 11. Qe2 Rd8 12. d3 d4 (12... Bd7 13. Nd2 Rac8 14. Kh1 Qe6 15. Rae1 b5 16. c4 dxc4 17. bxc4 b4 18. e4 Nh5 19. Bxg7 Nxg7 20. Nb3 Qb6 21. g4 a5 22. e5 a4 23. Nd2 Ne6 24. Bd5 {Reynolds,R-Ruthen,S (2114) ICCF 2014 0-1 (43) }) 13. Na3 Be6 14. e4 Qc7 15. f5 gxf5 16. exf5 Bxf5 17. Bxb7 Bxd3 18. cxd3 Qxb7 19. Rae1 Rd6 20. Qxe7 Qxe7 21. Rxe7 Rd7 22. Rxd7 {Andreassen,E (2317)-Lindhom, E (2230) ICCF 2009 1/2}) 11. d3 (11. c4 e6 (11... Bb7 12. a4 Qd7 13. a5 Bc6 14. Be5 b5 15. d3 Rfd8 16. Nc3 dxc4 17. dxc4 Qe6 18. Qe2 Bxf3 19. gxf3 bxc4 20. bxc4 Ne8 21. Bxg7 Kxg7 22. Nd5 Rab8 23. Qc2 {Modestino,M (2216)-Rákay,K (2220) ICCF 2018 1/2 (58)}) 12. d3 Rd8 13. Qe1 Bb7 14. Nd2 Qd7 15. Rd1 Rac8 16. Qh4 Ne8 17. Be5 f6 18. Bb2 dxc4 19. Nxc4 Bxf3 20. Rxf3 b5 21. Na3 c4 22. Rh3 h5 { Carter,M (1778)-Clarkson,P ICCF 2013 0-1 (32)}) 11... Bb7 (11... Qd7 12. Qe1 Bb7 13. a4 Ne8 14. Bxg7 Nxg7 15. Nd2 Qc7 16. Qf2 Rad8 17. Rfe1 f6 18. e4 Ne6 19. exd5 Nd4 20. Rac1 Rfe8 21. Be4 Bxd5 22. Bxd5+ Rxd5 23. Nc4 {Rozhnev,I (2186)-Starodubtsev,V (2211) ICCF 2017 1/2}) 12. Qe2 Rad8 (12... Ne8 13. c4 Bxb2 14. Qxb2 Qd7 15. Qf2 Nf6 16. Nc3 Rfd8 17. e4 dxc4 18. dxc4 Qd2 19. Nd5 Qxf2+ 20. Kxf2 Kf8 21. Rad1 Nxd5 22. cxd5 Rac8 23. Ke3 c4 24. Rc1 {Zhdanenia,K (2299)-Rusak,A (2016) ICCF 2017 1-0 (44)}) 13. Nd2 (13. a4 Ne8 14. Bxg7 Nxg7 15. a5 b5 16. c4 b4 17. Bxd5 Qf6 18. Nd2 Bxd5 19. cxd5 Rxd5 20. Rac1 Qa6 21. Nc4 Nf5 22. d4 Qe6 23. Qf3 Nd6 24. Ne5 cxd4 {Orlando,E-Hablizel,F (2339) ICCF 2017 1/2 (34)}) 13... Ne8 14. Bxg7 Nxg7 15. e4 e6 16. Rf2 Qd7 17. a4 dxe4 18. Nxe4 Qe7 19. Re1 Nf5 20. Nd2 {Zhdanenia,K (2285)-Krakovský,P (2287) ICCF 2017 1/2 (34)}) (8... Nxe5 9. fxe5 (9. Bxe5 Bf5 (9... Ne8 10. Bxg7 (10. Bf3 Bxe5 11. fxe5 d4 12. Qe1 Rb8 13. Qf2 Ng7 14. exd4 cxd4 15. Na3 a6 16. Nc4 b5 17. Nb2 Bf5 18. Nd3 Bxd3 19. cxd3 b4 20. Rfe1 Rb5 21. Re4 {Maltais,C (2181)-Mirkowski,P (2416) ICCF 2018 1/2 (47)}) 10... Nxg7 11. Bf3 (11. Nc3 e6 12. a4 b6 (12... Bd7 13. Qe1 Rc8 14. Qf2 (14. Nd1 Nf5 15. Nf2 Qe7 16. c3 Nd6 17. Bf3 c4 18. b4 f5 19. Nh1 g5 20. fxg5 Qxg5 21. Qg3 Qxg3 22. Nxg3 Kf7 23. a5 Rg8 24. Bd1 Kf6 25. Bf3 Rg5 {Heß,H (2316)-Dimitrov,M (2397) ICCF 2014 0-1 (73)}) 14... Bc6 15. Bd3 Nf5 {Brotherton,T (2185)-Arnold,K (2271) ICCF 2018 1/2 (35)}) 13. g4 Bb7 14. d4 Rc8 15. a5 cxd4 16. Nb5 Ba6 17. Nxd4 Bxe2 18. Qxe2 bxa5 19. c4 Rc5 20. cxd5 Qxd5 21. Qg2 Qd6 22. Rfc1 e5 {Pitono,P-Margana,A (2391) ICCF 2018 0-1 (54)}) 11... Rb8 12. a4 b6 13. Na3 Bb7 14. Qe2 e6 15. Rfd1 a6 16. c3 Nf5 17. d4 cxd4 18. cxd4 Qe7 19. Bg4 Rbc8 20. Qd2 Rc7 21. Bxf5 {Pimmingstorfer,C-Gabriel,B ICCF 2008 0-1 (42)}) (9... Bd7 10. Bf3 Bc6 11. d4 cxd4 12. Bxd4 Rc8 13. Nc3 e6 14. a4 a6 15. Qd3 Qe7 16. Ne2 Rfd8 17. Rfd1 b5 18. axb5 Bxb5 19. Qd2 Ne8 20. Ra2 {Tauber,H (2293)-Abegg,B (2358) ICCF 2006 1/2 (28)}) 10. Bf3 Qd7 11. d3 Be6 12. Qe2 Ne8 13. Bxg7 Nxg7 14. Nd2 Nf5 15. Rfe1 Rad8 16. Qf2 Qc7 17. Rac1 d4 18. e4 Ng7 19. Qh4 b5 20. e5 Nf5 {Andreassen,E (2317)-Løvholt,T (2163) ICCF 2009 1/ 2}) 9... Nd7 (9... Ne4 10. d3 Nd6 11. d4 (11. Bf3 Nf5 12. Qe1 Bh6 13. e4 Ne3 14. Qh4 Bg7 15. exd5 Nxc2 16. Nd2 Nxa1 17. Bxa1 Bf5 18. Ne4 Bxe4 19. dxe4 a5 20. Be2 a4 {Nørholm Jensen,L-Korolis,S ICCF 2011 0-1 (31)}) 11... Nf5 12. Qd3 Bh6 13. Bc1 Be6 14. Bd2 c4 15. Qc3 b5 16. a4 a6 17. bxc4 Qd7 18. axb5 axb5 19. Rxa8 Rxa8 20. cxb5 Rb8 21. Qd3 {Geus,A-Moeykens,C (2049) ICCF 2009 1-0 (64)}) 10. d4 e6 (10... f6 11. Bf3 (11. dxc5 Nxc5 12. exf6 exf6 13. c4 Be6 14. Bd4 Ne4 15. cxd5 Qxd5 16. Bf3 Rac8 17. Qd3 f5 18. Nd2 Bxd4 19. exd4 Rfd8 20. Nxe4 fxe4 21. Qxe4 Qxd4+ 22. Qxd4 Rxd4 {Sadler,C-Palozzi,S ICCF 2008 1-0 (31)}) 11... e6 12. exf6 Bxf6 13. c4 dxc4 14. bxc4 cxd4 15. exd4 Nb6 16. Na3 Bg7 17. Rc1 Bd7 18. Qe1 Rb8 19. Kh1 Qe7 20. Nb1 Rf7 21. Nd2 Bh6 22. Rc2 {García Díez,M (2070) -Koch,M ICCF 2007 1/2 (26)}) (10... Qb6 11. Nc3 e6 12. a4 cxd4 13. a5 Qc7 14. exd4 a6 15. Qd3 f6 16. Ba3 Re8 17. Bd6 Qc6 18. Qf3 b6 19. Na4 bxa5 20. Nc5 Nxc5 21. dxc5 fxe5 22. Qf7+ {Thommen,J (1662)-Woodhouse,S (1720) ICCF 2015 1-0 (29)} ) 11. c4 cxd4 12. exd4 f6 13. cxd5 exd5 14. Bf3 Nb8 15. Nc3 Be6 16. Rc1 Nc6 17. exf6 Qxf6 18. Nxd5 Qd8 19. Ne3 Nxd4 20. Bxb7 {Guinefolleau,M (2017)-Grin,T (1912) ICCF 2016 0-1 (38)}) (8... Bd7 9. d3 (9. Nxd7 Qxd7 10. d3 Rad8 11. Nd2 Qe6 12. Rf3 d4 13. e4 Ng4 14. Nf1 f5 15. h3 fxe4 16. dxe4 d3 17. Bxd3 Bxb2 18. Bc4 Qxc4 19. bxc4 Rxd1 20. Rxd1 Bd4+ {Fox,J (1506)-Carey,G (1883) ICCF 2020 0-1 }) (9. Bf3 Rc8 10. Na3 (10. c4 dxc4 11. bxc4 Bf5 12. Nxc6 bxc6 13. Qa4 Qd7 14. Be5 Rfd8 15. Rf2 Be4 16. Nc3 Bxf3 17. gxf3 Ra8 18. Rb1 Ne8 19. Bxg7 Nxg7 20. Ne4 Ne6 21. Qa5 Rdb8 {Tauber,H (2288)-Rawlings,A (2238) ICCF 2005 1-0 (51)}) 10... a6 (10... Bf5 11. c4 Nb4 12. d4 cxd4 13. exd4 Be4 14. Qd2 Nc6 15. Be2 a6 16. Rac1 e6 17. Nb1 Bxb1 18. Rxb1 Ne4 19. Qe3 Qa5 20. Ra1 {Tauber,H (2293) -Salzmann,S (2318) ICCF 2006 1/2 (63)}) 11. c4 dxc4 12. bxc4 Qc7 13. Qb3 Rfd8 14. Rad1 Ne8 15. Nxd7 Rxd7 16. Bxg7 Kxg7 17. Nb1 Nd6 18. g4 Kg8 19. d3 b5 20. Nd2 Na5 {Tauber,H (2288)-David,G (2161) ICCF 2005 1-0 (41)}) 9... Ne8 10. Bf3 ( 10. Nd2 Nxe5 11. Bxe5 e6 12. Nf3 Rc8 13. c4 dxc4 14. bxc4 Bxe5 15. Nxe5 Nf6 16. Bf3 b6 17. Qd2 Ne8 18. a4 a5 19. d4 Nf6 20. Rfd1 Be8 21. d5 exd5 {Clayton,G (1646)-Roberts,G ICCF 2014 1-0 (34)}) 10... Nxe5 11. fxe5 e6 12. Qe1 Rc8 13. Nd2 f5 14. c4 Nc7 15. d4 Qe7 16. dxc5 Qxc5 17. Bd4 Qa5 18. a3 b6 19. b4 Qa4 20. Bd1 {Roynet,S (1925)-Overly,B (1840) ICCF 2020}) (8... Be6 9. Nxc6 bxc6 10. d3 Qd7 11. Qe1 d4 12. e4 c4 13. Na3 c3 14. Bc1 Rfd8 15. Qh4 Rac8 16. Nc4 c5 17. f5 gxf5 18. Qg3 Kh8 19. Ne5 Qb7 20. exf5 {Pimmingstorfer,C-Thiel,M (1965) ICCF 2008 1-0 (56)}) (8... Qd6 9. Na3 a6 (9... Bf5 10. d3 a6 11. c4 Nd7 12. g4 Be6 13. cxd5 Bxd5 14. Nac4 Bxc4 15. Nxc4 Qc7 16. Bxg7 Kxg7 17. Bf3 Rad8 18. Qe2 Nb6 19. Rac1 Nd5 20. a3 f6 21. h4 {Heß,H (2312)-Evans,D (2176) ICCF 2012 1/2 (25)}) 10. c4 d4 11. Nxc6 bxc6 12. Bf3 Bf5 13. Qe1 Bd3 14. Be2 Bxe2 15. Qxe2 d3 16. Qf3 Qe6 17. Nb1 Ne4 18. Bxg7 Kxg7 19. Rd1 Rfd8 20. Nc3 {Poel,E (2366) -Vestergård,S (2233) ICCF 2009 1/2 (36)}) 9. Nxc6 bxc6 10. Na3 (10. exd4 cxd4 11. Bf3 (11. d3 Nd5 12. Rf2 Ne3 13. Qd2 c5 14. Na3 e5 15. fxe5 Bxe5 16. Nc4 Bf6 17. Ba3 Bg5 18. Bxc5 Nxc4 19. Qe1 Ne3 20. Bf3 Rb8 {Gultom,P-Bongo Akanga Ndjila,B (1912) ICCF 2017 0-1 (33)}) 11... d3 12. c4 Ng4 13. Bxg7 Kxg7 14. Nc3 Qd4+ {0-1 (14) Gonet Boisson,G-Trouillet,F ICCF 2009}) 10... Nd5 (10... Be6 11. Qe1 Nd5 12. Bf3 Qc7 13. Nc4 Nb4 14. Qc1 Rab8 15. a3 Nd5 16. g3 Bh3 17. Re1 h5 18. e4 Nf6 19. d3 Ng4 20. a4 {Shannon,P (1934)-Dee,J ICCF 2017 1-0 (42)}) 11. e4 (11. Nc4 Qc7 12. Bd3 Ba6 13. Rf3 Rab8 14. Ne5 Bxe5 15. fxe5 c4 16. Bf1 c3 17. Bc1 Bxf1 18. exd4 Ba6 19. dxc3 c5 20. c4 Nb6 21. Bf4 e6 22. c3 Bb7 { Vestergård,S (2241)-Oren,I (2273) ICCF 2009 1-0 (50)}) 11... d3 12. Bxg7 dxe2 13. Qxe2 Kxg7 14. exd5 {Shannon,P (1934)-Stevens,D ICCF 2017 0-1 (52)} cxd5 15. Qe3 Ba6 16. Rfe1 Qb6 17. c4 e6 18. Rab1 Kg8 19. cxd5 {1-0 (19) Rouse Pasara,C (2076)-Cuttica,G (2111) ICCF 2010}) (2... Bg4 3. e3 (3. Ne5 Bh5 (3... Bf5 4. b3 (4. c4 f6 5. Qa4+ c6 6. Nf3 e6 7. Nd4 Nd7 8. Nxf5 exf5 9. cxd5 Nb6 10. Qc2 Qxd5 11. Nc3 Qe6 12. e3 O-O-O 13. Be2 Bd6 14. Nb5 Bb8 15. O-O Ne7 {Pimmingstorfer, C-Müßig,F ICCF 2007 1/2 (31)}) 4... Nd7 5. Bb2 Ngf6 6. e3 e6 7. Be2 Nxe5 8. fxe5 Nd7 9. O-O Be7 10. d4 O-O 11. Nc3 c6 12. Bg4 Bg6 13. Ne2 h6 14. Nf4 Bh7 15. c4 {Masset,J (1909)-Gawiec,P ICCF 2012 1/2 (35)}) (3... Nf6 4. c4 e6 5. Nxg4 Nxg4 6. e3 Nf2 7. Kxf2 Be7 8. Qb3 b6 9. d4 O-O 10. Bd3 g6 11. Nc3 Nc6 12. cxd5 Na5 13. Qd1 exd5 14. h4 Bf6 15. Qf3 {Lund,S (1340)-Lanca,L (1444) ICCF 2019 1-0}) 4. c4 f6 (4... dxc4 5. g4 f6 6. Qa4+ c6 7. gxh5 fxe5 8. Qxc4 exf4 9. Qxf4 Nd7 10. Nc3 Ngf6 11. Qg5 g6 12. hxg6 Rg8 13. Bh3 Rxg6 14. Qh4 Rh6 15. Qg3 Rg6 16. Qf2 {Vestergård,S (2136)-Andersen,J (2156) ICCF 2011 1/2}) 5. Qa4+ (5. Nf3 Nc6 6. Qb3 e6 7. cxd5 exd5 8. Nc3 Nge7 9. Qxb7 Rb8 10. Qa6 g5 11. fxg5 fxg5 12. Nxg5 Bh6 13. Nf3 O-O 14. e3 Rb6 15. Qa4 d4 16. Ne4 Nf5 {Roynet,S (2062) -Benko,B (2022) ICCF 2017 0-1 (35)}) 5... c6 6. Nd3 e6 7. Nc3 Nd7 8. cxd5 exd5 9. e3 Nb6 10. Qc2 Bg6 11. Be2 Bd6 12. O-O Nh6 13. b3 O-O 14. g4 d4 {Bowen,F (1974)-Komarica,B (2044) ICCF 2017 0-1 (45)}) (3. c4 Nc6 4. Qb3 Nf6 5. Qxb7 Na5 6. Qb5+ c6 7. Qa4 Nxc4 8. Ne5 Bd7 9. Nxc4 dxc4 10. Qxc4 g6 11. Nc3 Bg7 12. e3 O-O 13. Be2 Qa5 14. d4 Rab8 {Fagerbekk,E (2052)-Traxler,A ICCF 2007 1-0 (35)}) (3. d4 e6 4. e3 c5 5. c3 Nf6 6. Bd3 Bd6 7. Nbd2 O-O 8. dxc5 Bxc5 9. Nb3 Nbd7 10. Qc2 Qb6 11. Nfd4 Bh5 12. O-O Bd6 13. a4 a6 14. a5 Qc7 {Serrajotto,M (2202) -Tieken,F (1953) ICCF 2012 0-1 (54)}) 3... Nd7 (3... e6 4. b3 (4. Be2 Bxf3 ( 4... Be7 5. O-O Bxf3 6. Bxf3 c6 7. b3 Nd7 8. Bb2 Bf6 9. d4 Nh6 10. Qd3 O-O 11. g4 Be7 12. c4 f6 13. Nc3 Kh8 14. h3 Bd6 15. Bg2 Re8 16. Rae1 {Hanegby,A (2074) -Ovcharenko,L (2294) ICCF 2014 1/2 (31)}) 5. Bxf3 a6 (5... Qh4+ 6. g3 Qh6 7. c4 Nf6 8. Qb3 Nbd7 9. Qxb7 Rb8 10. Qxa7 Bc5 11. Qa6 Qg6 12. cxd5 Qc2 13. Nc3 O-O 14. dxe6 Rb6 15. exf7+ Rxf7 16. Qc8+ Rf8 17. Qxc7 {Cook,P (1764)-Cardenas,I ICCF 2009 1-0 (27)}) 6. c4 c6 7. O-O dxc4 8. Qa4 Nd7 9. Qxc4 Ne7 10. d4 Nf5 11. Rd1 Be7 12. e4 Nh4 13. Be2 Nf6 14. g3 Ng6 15. Bf3 Rc8 {Arnold,G (2236)-Brião,P (1915) ICCF 2017 1-0 (36)}) 4... Be7 5. Bb2 Bf6 (5... Kf8 6. Be2 h5 7. d3 Nc6 8. Nbd2 Nh6 9. e4 Qd6 10. Ne5 Nxe5 11. Bxe5 Qc6 12. O-O Rd8 13. Bf3 Bxf3 14. Rxf3 Ng4 15. exd5 Qc5+ 16. d4 Qxd5 17. c4 {Esposito,L (1541)-Bertaggia,A ICCF 2018 0-1 (49)}) 6. d4 (6. Nc3 Ne7 7. Bd3 O-O 8. O-O c5 9. h3 Bf5 10. Bxf5 Nxf5 11. Qe1 Nc6 12. Rb1 Rc8 13. g4 Nh4 14. g5 Nxf3+ 15. Rxf3 Bxc3 16. Bxc3 d4 17. exd4 cxd4 {Esposito,L (1541)-Parente,M (1592) ICCF 2018 1-0 (53)}) 6... Ne7 7. Bd3 Nf5 (7... O-O 8. O-O Nec6 9. a3 Nd7 10. c4 Ne7 11. cxd5 Nxd5 12. Qd2 Rc8 13. e4 N5b6 14. a4 a6 15. a5 Na8 16. Na3 c5 17. Ne5 cxd4 18. Nxg4 Nc7 19. Nxf6+ {Cole,S (1892)-Wakeham,M (1503) ICCF 2015 1-0 (26)}) 8. Qd2 Bxf3 9. gxf3 Nc6 10. O-O Qd7 11. Bxf5 exf5 12. c4 O-O-O 13. Nc3 dxc4 14. bxc4 Na5 15. Qd3 { Andreassen,E (2325)-Pesonen,S (2299) ICCF 2006 1/2 (41)}) (3... f5 4. b3 Nf6 5. Bb2 Nbd7 6. Be2 e6 7. O-O Bc5 8. Ne5 Bxe2 9. Qxe2 O-O 10. c4 c6 11. a3 a5 12. d4 Be7 13. Nd2 Qb6 14. Ndf3 Nxe5 15. Nxe5 {Janas,S-McLaughlin,E (1681) ICCF 2009 1-0 (25)}) 4. h3 (4. Be2 Ngf6 (4... Bxf3 5. Bxf3 Ngf6 6. d4 e6 7. O-O Be7 8. c4 c6 9. b3 (9. Qd3 O-O (9... h5 10. Bd2 h4 11. Nc3 Qc7 12. a3 Nb6 13. b3 O-O-O 14. c5 Nbd7 15. b4 g5 16. fxg5 {Bito,L (2115)-Pettersson,R (2103) ICCF 2015 1-0 (50)}) 10. Nc3 a6 11. b3 b5 12. a4 b4 13. Ne2 c5 14. a5 Qc7 15. g4 h6 16. Bd2 Qa7 17. Rac1 Rad8 18. cxd5 Nxd5 19. Qc4 Nb8 20. e4 Nc3 {Arnold,G (2360) -Anderson,J (2329) ICCF 2008 1/2 (62)}) 9... O-O 10. Nc3 Qc7 11. Bb2 Rfd8 12. Qe2 Nf8 13. Rad1 Ng6 14. g3 a5 15. a3 Qb6 16. Qc2 {Arnold,G (2428)-Fischer,L ICCF 2006 1/2 (84)}) (4... e6 5. O-O (5. b3 Ngf6 (5... h6 6. Bb2 Ngf6 7. O-O Bd6 8. d3 O-O 9. Nbd2 Bf5 10. Qe1 Bc5 11. Nd4 Qe7 12. N2f3 Ng4 13. Qd2 Bh7 14. h3 Ngf6 15. Ne5 Nxe5 16. fxe5 Nd7 17. Nf3 {Guevara i Pijoan,J (2326)-Ribés Colom,J (2248) ICCF 2018 1/2 (34)}) 6. Bb2 Bd6 7. O-O O-O 8. Ne5 (8. Qe1 c6 9. Nc3 Bxf3 10. Rxf3 e5 11. fxe5 Nxe5 12. Rh3 Qd7 13. Qf2 b5 14. Rf1 Ng6 15. Bd3 Be5 16. Ba3 Rfb8 17. Bf5 Qe8 18. Ne2 b4 19. Bc1 {Vestergård,S (2241)-Andersen, L (2110) ICCF 2009 0-1 (34)}) 8... Bxe2 9. Qxe2 Ne4 10. d3 Nef6 11. Nd2 c5 12. c4 Re8 13. Qf2 Qa5 14. Ndf3 Rac8 15. Qg3 Nf8 16. Ng5 Rc7 {Greiner,T (2332) -Crump,J ICCF 2006 1-0 (34)}) 5... Bd6 (5... Ngf6 6. d3 (6. d4 Bd6 (6... c5 7. c3 Be7 8. Nbd2 O-O 9. h3 Bxf3 10. Bxf3 Qc7 11. Be2 Ne8 12. Bd3 Rc8 13. e4 cxd4 14. cxd4 Qb6 15. Nf3 dxe4 16. Bxe4 Nd6 17. Bd3 Bf6 18. Qa4 {Nielsen,J (1916) -Mignon,F ICCF 2006 1/2 (27)}) 7. Nbd2 c5 8. b3 O-O 9. Bb2 Bf5 10. Ne5 cxd4 11. exd4 Ne4 12. Nxe4 Bxe4 13. c4 dxc4 14. bxc4 b6 15. Bf3 {1-0 (15) Dagis,M-Saul, A ICCF 2005}) 6... Bd6 7. Nc3 c6 8. Kh1 (8. e4 dxe4 9. Nxe4 Nxe4 10. dxe4 Bc5+ 11. Kh1 Qe7 12. Qe1 O-O-O 13. Rb1 Bb6 14. b4 h5 15. b5 cxb5 16. Bxb5 Nf6 17. Ng5 Kb8 {Lilleeng,A (2114)-Sacripanti,G (2256) ICCF 2009 1/2 (54)}) 8... Qc7 9. Ng5 Bxe2 10. Nxe2 e5 11. Ng3 h6 12. Nh3 g6 13. f5 g5 14. Nh5 O-O-O 15. Nf2 e4 16. Nxf6 Nxf6 17. h3 {Walsh,H (1557)-Faust,D (1825) ICCF 2019 0-1}) (5... Nh6 6. d3 Bd6 7. e4 dxe4 8. dxe4 Qe7 9. Nc3 f6 10. Nb5 Bc5+ 11. Kh1 O-O-O 12. Qe1 c6 13. Nc3 Nf7 14. Na4 e5 15. f5 Nd6 16. Qh4 h5 17. Bd3 {Roynet,S (2129) -Andreica-Navruc,S (2283) ICCF 2018 1/2 (48)}) 6. Nc3 (6. c4 Ne7 7. b3 O-O 8. Bb2 c6 9. Nc3 Nf5 10. Qc2 Be7 11. Rae1 Rc8 12. Nd1 b5 13. Nf2 Bxf3 14. Bxf3 bxc4 15. bxc4 Nb6 16. e4 Nh4 17. Be2 Nxc4 {Sonnenfeld,W (1942)-Kaczmarek,R (1951) ICCF 2017 1-0 (43)}) (6. h3 Bxf3 7. Bxf3 c6 8. d4 Ngf6 9. Nc3 Qc7 10. e4 dxe4 11. Bxe4 O-O-O 12. a4 h6 13. a5 Rhg8 14. a6 b6 15. Qf3 Nxe4 16. Nxe4 f5 17. Nxd6+ Qxd6 {Krüger,J-Cendrowski,C (2116) ICCF 2007 0-1 (46)}) (6. d3 c6 7. e4 Qb6+ 8. Kh1 Ne7 9. Nc3 O-O 10. Qe1 Rad8 11. Qg3 Bxf3 12. Qxf3 Ng6 13. e5 Be7 14. Qh3 Nh4 15. Bg4 g6 16. Ne2 h5 17. Bf3 Nf5 {Arnold,G (2406)-Gildred,T (2268) ICCF 2005 0-1 (52)}) 6... Ne7 7. Nb5 a6 8. Nxd6+ cxd6 9. b3 O-O 10. c4 Qb6 11. Ba3 Rfd8 12. Bd3 Bxf3 13. Qxf3 Nc5 14. Bxc5 dxc5 15. Qh5 h6 16. Rae1 {Hullsiek, T (1864)-Bystrický st.,K (1775) ICCF 2011 0-1}) 5. O-O (5. b3 Bxf3 6. Bxf3 e5 7. O-O e4 (7... Bd6 8. c4 exf4 9. exf4 O-O 10. Nc3 dxc4 11. bxc4 Bxf4 12. Bxb7 Rb8 13. Bc6 Ne5 14. Rxf4 Nxc6 15. Ba3 Re8 16. d4 h6 17. Rc1 {Oliynyk,V (2228) -Vetter,G (2320) ICCF 2014 1/2 (36)}) 8. Be2 Bc5 9. Nc3 Qe7 10. Nb5 Rc8 11. Bb2 O-O 12. Nd4 Bxd4 13. Bxd4 c5 14. Bb2 Rfd8 15. Qe1 d4 16. Rc1 Nb8 {Noiré,E (2214)-Lenz,A ICCF 2007 1/2 (43)}) (5. d3 Bxf3 6. Bxf3 e5 7. Nc3 c6 8. O-O exf4 9. exf4 Bc5+ 10. d4 Be7 11. Ne2 Qc7 12. Qd3 O-O 13. g4 Bd6 14. g5 Ne4 15. Bxe4 dxe4 16. Qxe4 Rae8 {Puertas Covarrubias,F (2099)-Aupí Royo,J (2329) ICCF 2007 0-1 (60)}) (5. b4 e6 6. a3 a5 7. Bb2 axb4 8. axb4 Rxa1 9. Bxa1 Bxb4 10. Nc3 O-O 11. O-O c6 12. h3 Bxf3 13. Bxf3 Qc7 14. Ne2 Ra8 15. c3 Bc5 16. d4 Bd6 {Humbert, P-Beck,G (2223) ICCF 2010 0-1}) (5. c4 e6 6. cxd5 exd5 7. Nc3 c6 8. O-O h5 9. h3 Bxf3 10. Bxf3 Bc5 11. a3 a5 12. Rb1 Qe7 13. d4 Bb6 14. Bd2 Qd6 15. b4 axb4 16. Na4 Ba5 {Straka,J (2181)-Erdogdu,M (2281) ICCF 2013 1/2 (38)}) 5... Bxf3 ( 5... c6 6. b3 (6. c4 dxc4 7. Bxc4 e6 8. Nc3 Be7 9. d4 O-O 10. Be2 (10. h3 Bf5 11. Qe2 b5 12. Bd3 Bxd3 13. Qxd3 b4 14. Na4 Nb6 15. Qc2 Qd5 16. Ne5 Rfc8 17. Nc5 Bxc5 18. dxc5 Nbd7 19. Nd3 Qe4 20. Bd2 a5 21. Rac1 Rab8 {Trusewicz,J (2382) -Jäderholm,B (2399) ICCF 2011 1/2 (40)}) 10... c5 11. h3 cxd4 12. exd4 Bf5 13. g4 Bg6 14. Ne5 Qa5 15. Bf3 Nxe5 16. fxe5 Nd7 17. Qe2 {Oger,C (2362)-Sapundjiev, G (2416) ICCF 2011 1/2}) (6. Ne5 Bxe2 7. Qxe2 e6 8. b3 (8. d3 g6 9. e4 Nxe5 10. fxe5 Nd7 11. exd5 cxd5 12. Qf2 Qe7 13. b3 Nb6 14. Ba3 Qd7 15. Bxf8 Rxf8 16. a4 Rc8 17. a5 Na8 18. Qxa7 Qc7 19. a6 b6 {Guzman,H-Fenby,J (1824) ICCF 2013 1-0 (35)}) 8... Bb4 9. Nxd7 Nxd7 10. Bb2 O-O 11. e4 dxe4 12. Qxe4 Qe7 13. a4 Nf6 14. Qe3 Rfd8 15. Kh1 Qc5 16. Bxf6 Qxe3 {Urtans,R-Knöppel,P (1961) ICCF 2020}) ( 6. d4 e6 7. Nfd2 h5 8. h3 Bf5 9. c4 h4 10. a3 Bd6 11. Nc3 a5 12. b3 Qe7 13. Nf3 Ne4 14. Nxe4 dxe4 15. Nh2 g5 16. Ng4 Bxg4 17. Bxg4 f5 {Velez Arana,J (1733) -Monov,A (2200) ICCF 2015 0-1 (29)}) 6... e6 (6... Bxf3 7. Bxf3 e5 8. d4 exd4 9. exd4 Be7 10. Qd3 O-O 11. Nc3 Re8 12. Bd2 Bb4 13. Rae1 Qa5 14. g3 Rxe1 15. Rxe1 Re8 16. Rxe8+ Nxe8 {Fagerbekk,E (2052)-Skogfeldt,T ICCF 2008 1/2 (31)}) 7. Bb2 Bd6 (7... Be7 8. d3 (8. Qe1 Bxf3 9. Bxf3 O-O 10. Qg3 Ne8 11. Be2 Bf6 12. d4 Nd6 13. Qh3 c5 14. Nd2 cxd4 15. exd4 Rc8 16. Nf3 Qb6 17. Bd3 {García Díez, M-Hautajärvi,J ICCF 2006 1-0 (38)}) 8... Qb6 9. Nd4 Bxe2 10. Qxe2 O-O 11. Nd2 Nc5 12. Kh1 Rad8 13. Rae1 Bd6 14. e4 Kh8 15. e5 Rfe8 16. exd6 Rxd6 17. Nf5 Rd7 18. Nxg7 Kxg7 19. Qg4+ {Thommen,J (1865)-Kjeldsen,K ICCF 2010 1-0}) 8. Ne5 (8. c4 dxc4 9. Bxc4 e5 10. h3 Bxf3 11. Qxf3 exf4 12. exf4 O-O 13. Nc3 Nb6 14. Bd3 Qc7 15. Ne4 Nxe4 16. Qxe4 f5 17. Qe6+ Kh8 18. Rae1 Bc5+ 19. Kh1 Nd5 {Taner,H (2290)-Gündogdu,K (2142) ICCF 2012 1-0}) 8... Bxe2 9. Qxe2 Qc7 (9... O-O 10. d3 (10. g4 Qe7 11. d3 Rad8 12. g5 Ne8 13. Qh5 Bxe5 14. Bxe5 Nxe5 15. fxe5 Qc5 16. Qe2 d4 17. Nd2 Qxe5 18. Ne4 Nd6 19. exd4 Qxd4+ 20. Kh1 Nxe4 21. dxe4 {Lima,A (1963)-Johansson,J (1922) ICCF 2015 0-1 (29)}) 10... Qc7 11. Nxd7 Nxd7 12. c4 Rfe8 (12... Rae8 13. Na3 f6 14. Kh1 e5 15. f5 e4 16. cxd5 Bxh2 17. Rac1 exd3 18. Qxd3 Ne5 19. Qe2 Bg3 20. e4 a6 21. Nc4 Nxc4 {Andreassen,E (2343)-Brusila,H (2287) ICCF 2005 1/2 (40)}) 13. Nd2 (13. Nc3 Rad8 14. g3 Bb4 15. Rac1 Qd6 16. Kg2 e5 17. cxd5 exf4 18. Rxf4 Ne5 19. e4 f6 20. Rf5 Bxc3 21. Bxc3 cxd5 22. Bxe5 Rxe5 23. Kf1 b6 24. Qc2 {Lindemann,R (2226)-Tuyl,W (2149) ICCF 2016 1/2 (32)}) 13... e5 14. fxe5 Bxe5 15. Bxe5 Qxe5 16. Rae1 Qd6 17. Qf2 Re7 18. Qf4 Qc5 19. d4 Qa5 20. e4 Rae8 21. e5 {De Carlos Arregui,I (2341)-Grosu,D (2386) ICCF 2012 1/2 (55)}) 10. d4 (10. c4 Nxe5 11. fxe5 Bxe5 12. Bxe5 Qxe5 13. Nc3 d4 14. exd4 Qxd4+ 15. Kh1 Rd8 16. Rad1 O-O 17. Rf3 e5 18. Re3 Ng4 19. Rf3 e4 20. Nxe4 Rde8 21. d3 f5 {Soar,T (1676)-Jong,E (2011) ICCF 2020 0-1 (25)}) (10. Nxd7 Qxd7 11. Be5 O-O 12. d3 Ne8 13. Nd2 Bc5 14. Rf3 Nd6 15. Rh3 f6 16. Bb2 Rae8 17. Rf1 b5 18. a3 a5 19. Kh1 {1-0 (19) David,G (2438)-John,H (2407) ICCF 1999 Bird's Opening with-1...d5}) 10... Ne4 11. c4 h5 12. c5 Bxe5 13. fxe5 f6 14. Nc3 Nxc3 15. Bxc3 fxe5 16. b4 Nf6 17. dxe5 {Øvergaard,J (2157)-Reina Guerra,E (1911) ICCF 2008 1-0 (61)}) 6. Bxf3 e5 7. d4 e4 (7... exf4 8. c4 c6 9. cxd5 Nxd5 10. Bxd5 cxd5 11. Nc3 Nf6 12. exf4 Be7 13. f5 O-O 14. Bf4 Bb4 15. Bg5 Bxc3 16. bxc3 Qd6 17. Bxf6 Qxf6 18. Rb1 b6 19. Qb3 {Fister,B (2204)-Biaux,A (2227) ICCF 2007 1/2 (30)}) 8. Be2 c6 (8... Bd6 9. a3 (9. c4 c6 10. c5 Be7 11. b4 O-O 12. Nc3 Qc7 13. a4 b6 14. Bd2 Rfb8 15. a5 Ne8 16. Rc1 b5 17. Kh1 f5 18. Rg1 Ndf6 19. g4 fxg4 20. Bxg4 Nxg4 {Roynet,S (2089)-Barsallo,J (2035) ICCF 2017 1-0 (37)}) 9... O-O 10. b3 c5 11. c4 cxd4 12. exd4 b5 13. cxb5 Rc8 14. a4 Re8 15. a5 e3 16. b6 axb6 17. a6 {Bruce,R (1911)-Cheek,C (2126) ICCF 2017 1/2 (42)}) 9. c4 (9. b3 Qc7 10. c4 h6 11. Nc3 Bb4 12. Bb2 g5 13. Rc1 Bxc3 14. Bxc3 Rg8 15. Qc2 Rc8 16. fxg5 Rxg5 17. Bb4 h5 18. cxd5 Rxd5 19. Rf4 Rxd4 20. Rxf6 {Williamson,D (1947) -Boswell,G ICCF 2014 1-0 (26)}) 9... dxc4 (9... Be7 10. cxd5 cxd5 11. Qb3 Qb6 12. Bd2 Qxb3 13. axb3 a6 14. Rc1 Bd6 15. Nc3 Ke7 16. Na4 Rac8 17. b4 Rxc1+ 18. Rxc1 h6 19. Nc5 Rb8 20. g3 g5 21. Kf2 {Andreassen,E (2326)-Natskår,A ICCF 2008 1/2}) 10. Qc2 Bd6 11. Nd2 Qe7 12. Nxc4 Nb6 13. Nxd6+ Qxd6 14. Bd2 O-O 15. Kh1 Rfe8 {Fister,B (2235)-Dean,G ICCF 2008 1-0}) (4. b3 Ngf6 5. Bb2 (5. h3 Bxf3 6. Qxf3 e6 7. Bb2 Ne4 8. Rg1 Be7 9. Nc3 Nxc3 10. Bxc3 O-O 11. O-O-O a5 12. a4 c6 13. g3 b5 14. axb5 a4 15. bxc6 axb3 16. Bb5 Qb6 {Bruce,R (1958)-Fugger,C (1605) ICCF 2016 0-1}) 5... c6 6. h3 (6. d3 e6 7. Nbd2 Qb6 8. Qe2 a5 9. h3 Bxf3 10. Nxf3 a4 11. Kf2 Bd6 12. g3 O-O 13. Bg2 Rfe8 14. Ne5 a3 15. Bc3 Qc7 16. d4 c5 17. Nxd7 Nxd7 {Borsch,Y (2244)-Maruhn,R (2242) ICCF 2008 1/2 (34)}) (6. Be2 Qc7 (6... Bxf3 7. Bxf3 Qc7 (7... e6 8. O-O Bd6 9. d3 (9. Qe1 O-O 10. Qg3 Qc7 11. Nc3 e5 12. Ne2 exf4 13. Nxf4 Be5 14. Bxe5 Qxe5 15. Nh5 Qxg3 16. Nxg3 a5 17. d4 Rfe8 18. Rae1 a4 19. c4 axb3 20. axb3 Ra3 {Egan,M (1975)-Ryder,A (2073) ICCF 2007 1/2 (25)}) 9... Qc7 10. Nd2 O-O 11. c4 {Clarke,P-Castro,B (1553) ICCF 2012 }) 8. d4 Ne4 9. Nd2 f5 10. Nxe4 dxe4 11. Bh5+ g6 12. O-O Bg7 13. Be2 O-O-O 14. Qe1 Kb8 15. b4 e6 16. a4 h6 17. a5 g5 18. a6 {Andreassen,E (2180)-Rogemont,A (2279) ICCF 2009 0-1 (28)}) 7. d4 e6 8. O-O Ne4 9. Nfd2 h5 10. Nxe4 dxe4 11. Nd2 f5 12. c4 O-O-O 13. Qe1 {1/2 (13) Malnar,A-Rebernik,B ICCF 2006}) 6... Bxf3 7. Qxf3 h5 (7... e6 8. g4 Ne4 9. h4 f6 10. g5 Bb4 11. a3 Ba5 12. b4 Bb6 13. c4 Qe7 14. d3 Nd6 15. c5 Bxc5 16. bxc5 Nxc5 17. Qh5+ Kd7 18. Qd1 Kc7 19. Qc2 { Giffords,R-Lattimore,P ICCF 2020}) 8. g3 Qc7 9. c4 e6 10. Nc3 Bc5 11. cxd5 exd5 12. Bd3 O-O-O 13. O-O-O Qa5 14. Kb1 Bb4 15. g4 Nc5 {Blondel,F (2070)-Dumortier, T ICCF 2014 1/2 (29)}) (4. c4 e6 5. Qb3 Nc5 6. Qc2 Bxf3 7. gxf3 Qh4+ 8. Ke2 Nf6 9. b4 Ncd7 10. Ba3 Be7 11. Nc3 O-O 12. Kd1 Qf2 13. Be2 dxc4 14. h4 Nb6 15. Ne4 Qg2 {Jezovsek,M-Paul,J ICCF 2006 0-1}) (4. d4 e6 5. h3 Bf5 6. c4 Be7 7. g4 Be4 8. Nc3 Bb4 9. Bd2 Bxc3 10. Bxc3 Ne7 11. b3 O-O 12. Be2 c5 13. O-O cxd4 14. Qxd4 f6 15. Rac1 Nc6 {Roynet,S (2089)-LeSavouroux,H (1747) ICCF 2017 1-0 (29)}) 4... Bxf3 (4... Bf5 5. g4 Be4 6. d3 Bxf3 7. Qxf3 e6 8. Bd2 Qh4+ 9. Qf2 Be7 10. Be2 Qxf2+ 11. Kxf2 O-O-O 12. h4 Bc5 13. b4 Bb6 14. a4 d4 15. e4 a6 16. Na3 { Ackley,P (1931)-Grant,J (1770) ICCF 2013 1-0 (31)}) 5. Qxf3 c6 (5... Ngf6 6. Nc3 (6. g4 e6 (6... e5 7. g5 e4 8. Qg2 Ng8 9. c4 f5 10. cxd5 Nb6 11. d3 exd3 12. Bxd3 Qd7 13. Nc3 O-O-O 14. e4 fxe4 15. Bxe4 Bc5 16. Qc2 Ne7 17. Bd2 Nc4 18. Na4 {Bruce,R (1902)-Spagnoli,E (2211) ICCF 2015 1/2 (33)}) (6... h6 7. d3 (7. h4 c6 8. Nc3 h5 9. g5 Ng4 10. b3 e5 11. Bb2 Bd6 12. O-O-O Qe7 13. Kb1 f5 14. fxe5 Bxe5 15. Qxf5 O-O-O 16. Bh3 Rhf8 17. Qg6 Nf2 18. Qxh5 Kb8 {Bobel,P (2270) -Laine,J (2106) ICCF 2013 1/2}) 7... e5 8. Nc3 Bb4 9. Bd2 e4 10. Qg2 exd3 11. Bxd3 c6 12. O-O-O Nc5 13. a3 Nxd3+ 14. cxd3 Bf8 15. g5 Be7 16. gxf6 Bxf6 17. e4 d4 18. Ne2 {Oren,I (2309)-Gambardella,G (2132) ICCF 2007 1-0 (30)}) 7. d3 c6 ( 7... Nb6 8. Bd2 c5 9. Bg2 Be7 10. g5 Nfd7 11. Nc3 Qc7 12. O-O f5 13. a4 a6 14. a5 Nc8 15. e4 fxe4 16. Qe2 Nd6 17. dxe4 d4 18. e5 {Oren,I (2314)-Klaver,C ICCF 2008 1-0 (36)}) 8. e4 (8. g5 Ng8 9. e4 (9. Be2 h6 10. g6 Qh4+ 11. Kd1 f5 12. Bd2 Bd6 13. c4 dxc4 14. d4 Qf6 15. Bxc4 Nb6 16. Bd3 Qxg6 17. Nc3 Nf6 18. Kc2 O-O-O 19. Rag1 Qf7 20. Kb1 g6 {Eilmes,D (2258)-Offenborn,H (2225) ICCF 2005 1/ 2 (64)}) 9... Qb6 10. h4 O-O-O 11. Nd2 h6 12. Nb3 dxe4 13. dxe4 hxg5 14. hxg5 Rxh1 15. Qxh1 Nc5 16. Be3 Qb4+ 17. c3 Qxe4 18. Qxe4 Nxe4 {Ott,P-Bascetta,B (2166) ICCF 2006 1/2}) (8. Nc3 Qb6 9. Bg2 g6 10. O-O O-O-O 11. b3 Bg7 12. Na4 Qa6 13. Bd2 Ne8 14. Rac1 Nb6 15. Nxb6+ Qxb6 16. c4 Kb8 17. Qe2 Qa6 18. Bb4 h5 19. g5 Nd6 {Oaker,W (2221)-García Gil,J (2317) ICCF 2006 1-0 (40)}) 8... Qa5+ 9. c3 dxe4 10. dxe4 O-O-O 11. Nd2 h6 12. Be2 Qc7 13. a4 Be7 14. h4 h5 15. g5 Ng4 16. a5 Rhf8 17. Nb3 Nc5 {Bruce,R-Zeghachov,D ICCF 2013 1/2 (30)}) (6. d4 g6 7. Nc3 e6 8. Bd2 Bb4 9. Bd3 c5 10. dxc5 Nxc5 11. a3 Nxd3+ 12. cxd3 Be7 13. Ne2 O-O 14. Bc3 Nd7 15. O-O Rc8 16. b4 Bf6 17. Bxf6 Qxf6 {Öunmaa,A (2056)-Endsley, B (2180) ICCF 2009 1/2}) 6... c6 (6... e6 7. a3 c6 8. g4 h6 9. d4 Qb6 10. Bd3 c5 11. g5 hxg5 12. fxg5 O-O-O 13. gxf6 gxf6 14. dxc5 Bxc5 15. Bd2 Bd6 16. O-O-O Kb8 17. Bb5 Be5 18. Bxd7 {Bobel,P (2284)-Laurent,C (2055) ICCF 2014 1-0}) 7. g4 (7. d4 e6 (7... g6 8. g4 Bg7 9. g5 Nh5 10. Be2 O-O 11. Qg2 f6 12. Bxh5 gxh5 13. Qf3 Qe8 14. h4 Nb6 15. Ne2 e5 16. f5 {1-0 (16) Clayton,G (1646)-Gillard,J (1640) ICCF 2014}) 8. g4 h5 9. g5 Ng8 10. Bd3 Ne7 11. Ne2 g6 12. c4 Bg7 13. O-O O-O 14. cxd5 cxd5 15. Bd2 Nb6 16. Rac1 a5 17. Qg3 Nf5 18. Qf3 Nd6 {Burmeister, F (2216)-Bishop,W (2325) ICCF 2020 0-1 (50)}) 7... e5 (7... g6 8. g5 Nh5 9. d4 Qb6 10. Bd3 O-O-O 11. a4 a5 12. Bd2 e6 13. O-O-O Ng7 14. Na2 c5 15. dxc5 Nxc5 16. Bc3 Rg8 17. Bd4 Ne8 18. Nc3 Nd6 19. Nb5 {Dreisch,J (2106)-Rogemont,A (2284) ICCF 2016 1/2 (33)}) 8. g5 Ng8 (8... e4 9. Qg2 Ng8 10. b3 h6 11. h4 hxg5 12. hxg5 Rxh1 13. Qxh1 Ne7 14. Bb2 Qc7 15. O-O-O O-O-O 16. Ne2 Qd6 17. Qh7 Qg6 18. Qxg6 Nxg6 19. Bh3 a5 20. Ng3 {Fagerbekk,E-Lahdenmäki,L (1966) ICCF 2007 1-0 (44)}) 9. h4 (9. b3 h6 10. h4 hxg5 11. hxg5 Rxh1 12. Qxh1 Qc7 13. Ne2 O-O-O 14. Bb2 Bd6 15. Qf3 Kb8 {Kirk,T-Lorenz,H (1737) ICCF 2017 1/2}) (9. d3 Qb6 10. Bd2 d4 11. exd4 exd4 12. Na4 Qa6 13. Qe4+ Ne7 14. Qxd4 O-O-O 15. Nc3 Nf5 16. Qg1 Bc5 17. d4 Qb6 18. Na4 Rhe8+ 19. Kd1 Qc7 20. dxc5 Nxc5 {Harding,T (2368) -Latronico,N (2470) ICCF 2011 1/2}) 9... Bd6 10. Bh3 (10. b3 Ne7 11. Bb2 O-O 12. Bh3 exf4 13. exf4 Ng6 14. Ne2 Re8 15. O-O-O Ngf8 16. h5 Qe7 17. Qc3 f6 18. Nd4 Bxf4 19. Nf5 Qe5 20. Qd3 Qe4 {Roynet,S (2158)-Hall,T (2046) ICCF 2018 1-0 (29)}) 10... e4 (10... Ne7 11. b3 exf4 12. exf4 Qc7 13. Bb2 O-O-O 14. Ne2 Rhg8 15. Qh5 Kb8 16. O-O-O f5 17. Qxh7 Nf8 18. Qh5 g6 19. Qf3 Ne6 20. Rhe1 d4 21. Nxd4 Nxd4 22. Bxd4 {Arnold,G (2261)-Luey,R (2219) ICCF 2016 1-0 (39)}) (10... exf4 11. d4 fxe3 12. O-O f6 13. Bxe3 Ne7 14. gxf6 Nxf6 15. Be6 Rf8 16. h5 Qb6 17. Rae1 Qb4 18. a3 Qxb2 19. h6 g5 20. Bxg5 Qxc2 21. Re2 Qg6 22. Qe3 {Csiba,T (2159)-Overturf,S (1730) ICCF 2020 1-0}) 11. Qg2 Ne7 12. b3 (12. a3 Qb6 13. b3 O-O-O 14. Bb2 Rhg8 15. Bg4 Kb8 16. Qh3 Qc7 17. h5 Rgf8 18. O-O-O f6 19. gxf6 Nxf6 20. Be6 d4 21. exd4 Bxf4 {Roynet,S (2089)-Norman,N (2182) ICCF 2017 1/2 (47)}) 12... Qa5 13. a4 O-O-O 14. Bb2 Kb8 15. h5 Rhg8 16. Ne2 a6 17. Ng3 { Velker,W (2270)-Scott,P (2271) ICCF 2018 1/2}) (5... e5 6. Qxd5 Qh4+ 7. Kd1 O-O-O 8. fxe5 Qe7 9. Qa5 (9. d4 Nxe5 10. Qe4 Nf6 11. Qf5+ Kb8 12. Bd2 Nc6 13. Nc3 g6 14. Qf3 Bh6 15. Bc4 a6 16. a3 Qd6 17. Bd3 Nd7 18. Ne4 Qe7 19. b4 f5 20. Nc5 f4 {Velker,W (2275)-Löschnauer,E (2341) ICCF 2018 1/2}) (9. g4 h5 10. d4 Nxe5 11. Qg2 hxg4 12. Bd2 Ng6 13. hxg4 Nh4 14. Qf2 g5 15. Nc3 Nh6 16. Rg1 Kb8 17. Bd3 Qd7 18. Qe2 f5 19. gxf5 g4 20. Kc1 Nf3 {Daus,P (2417)-Steinkellner,P ICCF 2011 1/2 (27)}) 9... Kb8 10. Nc3 (10. b3 Nxe5 11. Ba3 Qf6 12. Bxf8 Rxf8 13. Nc3 Ne7 14. Nb5 Ng4 15. Bd3 Nc6 16. Qxc7+ Ka8 17. Qd6 Qxa1+ 18. Ke2 Qe5 19. Nc7+ {1/2 (19) Jensen,K (2153)-Tauscher,K (2234) ICCF 2015}) 10... Nxe5 11. Qa4 h5 12. d3 Rh6 13. Bd2 Rb6 14. Kc1 g6 15. Qf4 Bh6 16. Qg3 h4 17. Qe1 {Smail, J-Hauser,D ICCF 2008 0-1}) (5... e6 6. d4 (6. Be2 c6 (6... Bd6 7. b3 (7. c4 c6 8. d4 Ne7 9. O-O O-O 10. Bd2 c5 11. dxc5 Nxc5 12. Nc3 Qb6 13. b4 Qxb4 14. Rfd1 Rad8 15. cxd5 exd5 16. Nxd5 Qe4 17. Nc3 Qxf3 18. Bxf3 Bc7 {Arnold,G (2282) -Bystrický st.,K (1907) ICCF 2010 1/2 (73)}) 7... Ne7 8. O-O O-O 9. Bb2 c6 10. d3 Qb6 11. Nd2 Nf5 12. d4 Qa5 13. c3 c5 14. Bd3 cxd4 {0-1 (14) Pallister,S (1931)-Bailey,S ICCF 2017}) (6... Ne7 7. b3 Nf5 8. g4 Nh4 9. Qf2 Be7 10. Bb2 Nf5 11. Kd1 Bf6 12. Nc3 Nd6 13. Bf3 Bh4 14. Qg2 h6 15. e4 b5 16. exd5 Rc8 17. Qe2 Qe7 18. a4 {Perini,G (2266)-Rajala,O (2109) ICCF 2015 1-0 (48)}) 7. O-O f5 (7... Ne7 8. d4 Nf5 9. c4 Nf6 10. Rd1 Be7 11. Bd3 dxc4 12. Bxc4 h5 13. Nc3 Qb6 14. Rb1 a5 15. Bd3 h4 16. Bd2 Rd8 17. Bc2 g6 18. a3 Kf8 19. b4 {Duchardt,A (2215)-Norguet,C (2117) ICCF 2015 1-0 (46)}) 8. c4 Ngf6 9. g4 g6 10. d4 Ne4 11. Nd2 Ndf6 12. Qg2 Qc7 13. Nxe4 Nxe4 14. Bd3 Be7 15. Rb1 Rg8 16. b4 a6 17. a4 g5 {Arnold,G (2263)-Biedermann,T (2455) ICCF 2017 1/2 (37)}) (6. Nc3 f5 7. d3 Ngf6 8. Bd2 c6 9. g4 g6 10. Be2 Qb6 11. g5 Nh5 12. O-O-O O-O-O 13. Kb1 e5 14. fxe5 Nxe5 15. Qf2 Ng7 16. Na4 Qc7 17. c4 dxc4 {Bruce,R (2002)-Boles,R (2072) ICCF 2019 1/2 (34)}) (6. d3 c6 7. Be2 Bd6 8. e4 Qb6 9. Nd2 Ne7 10. c3 O-O 11. Nb3 a5 12. Be3 c5 13. Rb1 e5 14. f5 d4 15. Bf2 a4 16. Nd2 Rfb8 17. Nc4 Qc7 {Díaz Rubí, F (2229)-Ribés Colom,J (2248) ICCF 2018 1/2 (33)}) (6. g4 c6 7. d4 g6 8. Bd3 h5 9. g5 Ne7 10. Nc3 c5 11. Bd2 Bg7 12. O-O-O O-O 13. dxc5 Nxc5 14. e4 dxe4 15. Nxe4 Nxd3+ 16. Qxd3 Nd5 17. Kb1 Qb6 {Pisani,C (2139)-Fernández,J (2360) ICCF 2016 0-1 (36)}) 6... c5 7. c3 g6 (7... Ngf6 8. Bd3 g6 9. g4 h6 10. Nd2 Be7 11. b3 Rc8 12. Bb2 cxd4 13. exd4 O-O 14. O-O Nb8 15. Qe3 Nc6 16. Rae1 Nh7 17. Re2 Bd6 18. Nf3 Re8 19. h4 {Koskinen,E (2278)-Mujunen,M (1929) ICCF 2017 1-0 (39)}) 8. Bd3 f5 9. O-O c4 10. Bc2 Ngf6 11. b3 Rc8 12. Bb2 Nb6 13. Nd2 Ne4 14. Nxe4 fxe4 15. Qe2 h5 16. b4 Ra8 17. a4 {Jensen,K (2184)-Rose,S (2162) ICCF 2020 1/2 (32)}) 6. d4 (6. Nc3 e5 (6... e6) 7. d3 exf4 8. Qxf4 Nc5 9. Qf2 Nf6 10. g4 Be7 11. g5 Nfd7 12. h4 h6 13. d4 Ne6 14. g6 O-O 15. gxf7+ Rxf7 16. Qh2 Qb6 17. Bd3 Raf8 {Gates,J (2278)-Ansel,A (2214) ICCF 2020 1/2}) (6. b3 e5 7. Bb2 Qc7 8. c4 e4 9. Qg3 Ngf6 10. Nc3 dxc4 11. Bxc4 Qd6 12. d4 Nb6 13. Be2 Be7 14. O-O O-O 15. d5 cxd5 16. Rfd1 g6 17. Nb5 Qd7 {Malnar,A-Turicnik,V (2220) ICCF 2006 1-0 (48)} ) 6... e6 7. Bd3 f5 (7... Bd6 8. c4 (8. O-O f5 9. c4 Ne7 10. c5 Bc7 11. b4 Nf6 12. Bb2 Ne4 13. a3 O-O 14. Rd1 g5 15. Nc3 Kh8 16. fxg5 Nxg5 17. Qh5 Rg8 18. Rd2 Rg6 19. h4 Ne4 {Bruce,R (1871)-Groenhout,R (1861) ICCF 2016 0-1 (30)}) 8... f5 (8... dxc4 9. Bxc4 Ne7 10. O-O O-O 11. Kh2 Nb6 12. Bd3 Rc8 13. Rd1 g5 14. g3 gxf4 15. exf4 Nf5 16. Nc3 Nd5 17. Bd2 Qf6 18. Ne4 Qg7 19. Nxd6 Nxd6 20. Rg1 { Arnold,G (2267)-Gromotka,H (2398) ICCF 2018 1/2 (64)}) 9. cxd5 cxd5 10. Nc3 ( 10. g4 Ne7 11. Bd2 Nf6 12. Nc3 Rc8 13. O-O-O Ne4 14. gxf5 exf5 15. Qg2 O-O 16. Rdg1 g6 17. Kb1 Nxd2+ 18. Qxd2 Bb4 19. Rc1 Qb6 20. Be2 Kf7 21. h4 Rc7 {Arnold, G (2248)-Burmeister,F (2209) ICCF 2018 1/2 (41)}) 10... Ngf6 11. g4 Ne4 12. gxf5 exf5 13. O-O Qa5 14. Qd1 Ndf6 15. Nxe4 Nxe4 16. b4 Qd8 17. Qa4+ Kf7 18. Bxe4 fxe4 19. Bd2 {Arnold,G (2261)-Grossi,R (2110) ICCF 2016 1/2 (39)}) (7... c5 8. c4 dxc4 9. Bxc4 cxd4 10. exd4 Rc8 11. Nd2 Bb4 12. Bd3 Qb6 13. Qf2 Ngf6 14. O-O O-O 15. Nc4 Qd8 16. Be3 Nd5 17. Rac1 N7b6 18. Ne5 f6 19. Nc4 {Alozy,F (1998)-Calvo,R (2188) ICCF 2010 0-1 (69)}) (7... g6 8. c4 f5 9. O-O Ngf6 10. Qd1 Bg7 11. Nc3 O-O 12. Qb3 Qb6 13. Qxb6 axb6 14. a4 dxc4 15. Bxc4 Nd5 16. Bd2 N7f6 17. Kf2 Kf7 18. Be2 h5 19. Bf3 {Arnold,G (2221)-Bus,T (2217) ICCF 2016 1/ 2 (26)}) 8. g4 (8. c4 Ngf6 9. Bd2 Ne4 10. O-O Ndf6 11. Be1 Bd6 12. Bh4 Be7 13. Bxf6 Bxf6 14. Qd1 O-O 15. Nc3 Qe7 16. Rb1 Rad8 17. Bxe4 dxe4 18. c5 g5 19. Ne2 Kh8 {Öunmaa,A (2056)-Skorna,U (2300) ICCF 2009 0-1 (43)}) 8... g6 9. g5 h6 10. h4 c5 11. Nc3 (11. c3 Qc7 12. Nd2 Bd6 13. Qg2 c4 14. Bf1 Rc8 15. Nf3 h5 16. Qc2 Ne7 17. Bd2 Nc6 18. b4 b5 19. a4 bxa4 20. Qxa4 Nb6 21. Qc2 Rb8 22. Kf2 Nd7 { Fister,B (2304)-Mousessian,J (2403) ICCF 2015 1/2 (48)}) 11... hxg5 12. hxg5 Rxh1+ 13. Qxh1 Bg7 14. Bd2 {Kaminski,J (1966)-Huber,M (2058) ICCF 2016 0-1 (57) }) (2... Nc6 3. e3 (3. b3 Nf6 (3... f6 4. d4 e6 5. Bd2 Bd6 6. e3 Nge7 7. Nc3 O-O 8. Bd3 Nb4 9. Na4 Nxd3+ 10. cxd3 b6 11. O-O Ba6 12. Nb2 c5 13. dxc5 bxc5 14. Re1 Ng6 15. g3 {Chugg,M (1372)-Ajimal,J ICCF 2016 0-1 (41)}) 4. Bb2 Bg4 5. e3 e6 (5... Bxf3 6. Qxf3 e6 7. Bb5 Bd6 8. a3 O-O 9. O-O e5 10. Bxc6 bxc6 11. fxe5 Ne4 12. exd6 cxd6 13. Qg4 f6 14. c4 dxc4 15. Qxe4 cxb3 16. Qc4+ Kh8 17. Qxb3 {Rinaldi,M (1735)-Kaupat,T (1678) ICCF 2012 1-0}) (5... e5 6. fxe5 Nxe5 7. Bxe5 Be7 8. h3 Bxf3 9. Qxf3 O-O 10. Bd3 h6 11. O-O c6 12. Nc3 Re8 13. Ne2 a6 14. Qf5 g6 15. Qf4 g5 16. Qf5 Kg7 17. Bxf6+ {Rinaldi,M-Reed,J ICCF 2011 1-0 (41)}) 6. Be2 Bd6 (6... Bc5 7. O-O h6 8. Ne5 Nxe5 9. fxe5 Bxe2 10. Qxe2 Nd7 11. d4 Bb6 12. c4 dxc4 13. bxc4 a6 14. Nd2 O-O 15. c5 Ba5 16. Nc4 Bb4 17. a3 Bxc5 18. dxc5 {Cole,S (1892)-Reed,J (1557) ICCF 2015 1-0}) 7. h3 Bh5 8. O-O O-O 9. Nd4 Nxd4 10. Bxd4 Bxe2 11. Qxe2 c5 12. Bb2 a6 13. a4 Ne4 14. d3 Ng3 {Rinaldi,M (1696)-Secondi,A (1584) ICCF 2012 1-0 (31)}) (3. d4 Nf6 4. Nc3 e6 5. e4 dxe4 6. Ne5 a6 7. Be3 Bb4 8. g4 h6 9. Bc4 Ne7 10. g5 hxg5 11. fxg5 Nd7 12. Nxf7 Kxf7 13. Bxe6+ Ke8 14. Qg4 g6 {Latta,R-Acebo,B ICCF 2013 1-0}) (3. g3 Bg4 4. Bg2 g6 5. d4 Bg7 6. Ne5 Nxe5 7. fxe5 f6 8. c4 Qd7 9. cxd5 fxe5 10. h3 Bxh3 11. Rxh3 exd4 12. Bf4 c6 13. dxc6 bxc6 14. Qc2 Rc8 {Vaquera García,A-Kocher,R ICCF 2015 1-0}) (3. Nc3 d4 4. Ne4 Nf6 5. d3 e5 (5... Bg4 6. e3 e5 7. Be2 Bb4+ 8. Bd2 Nd5 9. O-O Bxd2 10. Qxd2 dxe3 11. Qc1 exf4 12. Rd1 Bxf3 13. Bxf3 Nd4 14. Nc5 Nxf3+ 15. gxf3 e2 16. Rd2 Qg5+ 17. Kh1 {Chugg,M (1396)-García Rodríguez,I (2212) ICCF 2016 0-1 (26)}) 6. fxe5 Nxe4 7. dxe4 Bb4+ 8. Bd2 Bc5 9. Bg5 Qd7 10. Qd3 h6 11. Bh4 Bb4+ 12. Kf2 O-O 13. h3 Bc5 14. g4 Nb4 {Voglimacci,N (1658)-Jacon,M (1844) ICCF 2012 0-1}) (3. c4 d4 4. e4 Nh6 5. d3 e5 6. Nxe5 Nxe5 7. fxe5 Ng4 8. Bf4 Bc5 9. a3 Ne3 10. Qc1 a5 11. Nd2 a4 12. Nf3 Bg4 13. Bg5 Qd7 14. Nh4 Be7 { Fagerbekk,E (2220)-Poletaev,V ICCF 2010 0-1 (44)}) 3... Bf5 (3... Bg4 4. Be2 ( 4. Bb5 Qd6 (4... Nf6 5. b3 (5. O-O e6 6. Qe1 (6. b3 Be7 7. Bb2 O-O 8. Bxc6 bxc6 9. d3 Nd7 10. h3 (10. Qe1 Bf6 11. Nd4 Qe8 12. Nc3 c5 13. Nc6 Bh5 14. a4 a6 15. Ba3 Qc8 16. d4 Bg6 17. Rc1 {Elias,B-Hensley,M ICCF 2007 1/2 (62)}) 10... Bxf3 11. Qxf3 Bf6 12. Nc3 c5 13. Kh2 c6 14. Na4 Qe7 15. Bxf6 Nxf6 16. e4 Rfd8 17. Rae1 Rab8 {Dam,J (2028)-Wilshusen,H (1393) ICCF 2019 1-0 (38)}) 6... Bxf3 7. Rxf3 Qd6 8. d4 a6 9. Bd3 Be7 10. a3 O-O-O 11. Nd2 h5 12. c3 Ng4 13. e4 dxe4 14. Bxe4 f5 15. Bc2 g5 16. Bb3 Rh6 {Bruce,R (1884)-Dudeney,K (1911) ICCF 2013 1/2 (46)}) (5. c4 dxc4 6. h3 Bxf3 7. Qxf3 Qd6 8. Na3 Qc5 9. O-O e6 10. Bxc4 O-O-O 11. d4 Qa5 12. Nc2 Kb8 13. a3 g6 14. b4 Qa4 15. Bd3 a6 16. Bd2 Na7 {Arnold,G (2181)-González Barcina,F (2169) ICCF 2014 1-0 (48)}) 5... e6 (5... Qd6 6. Ba3 Qe6 7. Nc3 O-O-O 8. Bxc6 Qxc6 9. Ne5 Qe6 10. Ne2 Bh5 11. Bb2 Nd7 12. Nd4 Qxe5 13. fxe5 Bxd1 14. Rxd1 Nxe5 15. Ne6 Nf3+ 16. gxf3 {Elias,B-Ziechaus,L (1841) ICCF 2007 1/2 (41)}) 6. Bxc6+ bxc6 7. Bb2 Bd6 (7... Bc5 8. Nc3 Bd6 9. O-O h5 10. Qe1 Nd7 11. d3 f6 12. Nd4 Nb8 13. h3 c5 14. Ndb5 Bf5 15. Na4 Nc6 16. e4 dxe4 17. dxe4 Bh7 18. e5 Be7 19. exf6 {Elias,B (1618)-Jokipii,G ICCF 2009 1-0 (27)}) 8. O-O O-O 9. h3 Bh5 10. d3 Nd7 11. g4 Bg6 12. Qe2 c5 13. Qg2 f6 14. Nc3 c6 15. h4 h5 16. g5 {Gates,J-Alvarado Muñoz,N ICCF 2017 1-0 (30)}) (4... g6 5. Bxc6+ bxc6 6. O-O Bg7 7. h3 Bxf3 8. Qxf3 Nf6 9. g4 O-O 10. d3 Qd6 11. Nd2 e5 12. fxe5 Qxe5 13. e4 Rae8 14. c3 dxe4 15. Nxe4 Nxe4 16. dxe4 {Mitel,C-Voronkov, V ICCF 2009 0-1 (30)}) 5. O-O (5. b3 O-O-O 6. Bb2 Nf6 7. O-O (7. Bxc6 Qxc6 8. O-O Bxf3 9. Rxf3 Rg8 10. a4 g5 11. Nc3 Kb8 12. Nb5 gxf4 13. Rxf4 Bh6 14. Nd4 Qd7 15. Rf1 Rg6 16. g3 Qh3 17. Qe2 Rdg8 18. Rf3 Ne4 {Krüger,J-Kruk,S (1851) ICCF 2007 1/2 (51)}) 7... e6 8. Bxc6 Qxc6 9. Ne5 Bxd1 10. Nxc6 bxc6 11. Rxd1 Be7 12. d3 h6 13. Nd2 Kd7 14. Nf3 Bd6 15. Ne5+ Bxe5 16. fxe5 Ng8 {Morelli, A-Randolph,D (1736) ICCF 2008 1-0 (49)}) 5... e6 (5... O-O-O 6. Bxc6 Qxc6 7. Ne5 Bxd1 8. Nxc6 bxc6 9. Rxd1 f6 10. d3 e5 11. fxe5 fxe5 12. Nc3 Nf6 13. Rf1 Bd6 14. Bd2 Kd7 15. h3 Ke6 16. Rf2 h5 17. g3 {Malnar,A-Semrl,M (2550) ICCF 2005 1/2}) (5... Nf6 6. b3 a6 7. Ba3 Qd7 8. Bxc6 Qxc6 9. Nc3 e6 10. Bxf8 Rxf8 11. a4 O-O-O 12. b4 d4 13. exd4 Bxf3 14. Rxf3 Rxd4 15. b5 Qd6 16. bxa6 bxa6 17. Qf1 {Taylor,R-Hart,J ICCF 2012 0-1}) 6. d4 Nge7 7. Be2 Ng6 8. c4 dxc4 9. Bxc4 Be7 10. h3 Bxf3 11. Rxf3 O-O 12. Nc3 Nh4 13. Rf1 Nf5 14. Ne4 Qd7 15. a3 h6 { Kaminski,J (1877)-Randolph,D (1788) ICCF 2008 1-0 (36)}) (4. d4 e6 (4... a6 5. c4 e6 6. Nc3 Nf6 7. a3 Ne7 8. h3 Bf5 9. Qb3 Rb8 10. g4 Be4 11. Nxe4 Nxe4 12. cxd5 exd5 13. Bd3 c6 14. Qc2 f5 15. gxf5 Nxf5 16. Bxe4 {Bruce,R (2090)-Neil,C (1385) ICCF 2019 1-0}) 5. Be2 Nf6 6. c4 Be7 7. cxd5 exd5 {Vajas,S (1869)-Obana, A ICCF 2020} (7... Nxd5 8. O-O O-O 9. Bd2 a5 10. a3 Bf6 11. Nc3 Nxc3 12. bxc3 Bf5 13. a4 Qd7 14. Ne1 Rfd8 15. Nd3 Be7 16. Nf2 Bg6 17. Qb3 Bh4 18. g3 Be7 19. Rae1 {Kögeler,A (2122)-Michiels,A (1944) ICCF 2015 1-0 (33)})) (4. h3 Bxf3 ( 4... Bf5 5. Bb5 Nf6 6. d3 e6 7. O-O Bd6 8. b3 O-O 9. Bxc6 bxc6 10. Nbd2 h6 11. Bb2 a6 12. Ne5 Qe8 13. g4 Bh7 14. Nxc6 Qxc6 15. Rc1 Be7 16. g5 {Gonet Boisson, G-Dejonckheere,D ICCF 2009 0-1 (30)}) 5. Qxf3 e6 6. Bb5 Nge7 7. d4 a6 8. Be2 Nf5 9. c3 Qh4+ 10. Kd1 Ng3 11. Rg1 Nxe2 12. Kxe2 O-O-O 13. Bd2 g5 14. Be1 Qh6 15. Qg4 Be7 {Gonet Boisson,G-Garceau,J ICCF 2009 0-1}) 4... e6 (4... Bxf3 5. Bxf3 e6 (5... e5 6. Nc3 e4 7. Bg4 Nh6 8. Bh3 Qh4+ 9. Kf1 d4 10. Nxe4 dxe3 11. dxe3 Rd8 12. Bd2 f5 13. Ng5 Ng4 14. g3 Nxe3+ 15. Ke2 Qh5+ 16. Kxe3 Bc5# { 0-1 (16) Harris,S (1533)-de Wit,W (1630) ICCF 2018}) (5... Nf6 6. O-O (6. d3 e5 7. a3 e4 8. Be2 Bd6 9. Nc3 d4 10. Nb5 a6 11. Nxd6+ Kf8 12. Nf5 dxe3 13. Bxe3 exd3 14. Bc5+ Kg8 15. cxd3 b6 16. Be3 Nd5 17. Nxg7 {Latta,R-Lyons,A ICCF 2014 0-1 (55)}) 6... e5 7. Nc3 e4 8. Be2 a6 9. d3 d4 10. Nxe4 Nxe4 11. dxe4 dxe3 12. Bxe3 Qxd1 13. Raxd1 Be7 14. c3 O-O 15. b4 Na7 16. Rd7 Bd6 17. Bxa7 {De La Forét,F (1514)-Hardwick,M (1498) ICCF 2015 1-0 (27)}) 6. O-O Be7 7. d3 Nf6 8. b3 O-O 9. Bb2 h6 10. c4 dxc4 11. bxc4 Qd7 12. Qe2 Rad8 13. Rd1 g5 14. g3 Nh7 15. d4 Bf6 16. Nd2 {Bruce,R (1941)-Schenker,L (1367) ICCF 2019 1-0 (41)}) (4... Nf6 5. O-O (5. Ne5 Bxe2 6. Qxe2 Nxe5 7. fxe5 Ne4 8. Qb5+ c6 9. Qxb7 Rc8 10. Qxa7 e6 11. O-O Be7 12. Qa6 O-O 13. Qe2 Qc7 14. d3 Nc5 15. d4 Ne4 16. Nd2 { Flor Trejo,R (2164)-Carmo,L (1540) ICCF 2016 1-0 (31)}) 5... Qd6 (5... e6 6. d4 (6. c3 Bd6 7. d4 O-O 8. Nbd2 Ne7 9. h3 Bh5 10. g4 Bg6 11. Ne5 h6 12. Nxg6 Nxg6 13. f5 exf5 14. gxf5 Ne7 15. c4 Re8 16. c5 Bg3 17. Qb3 Nc6 {Roth,P (2005) -Baciak,M (1964) ICCF 2008 1-0 (28)}) 6... Be7 (6... Bb4 7. Bd2 a5 8. a3 Be7 9. c4 dxc4 10. Nc3 O-O 11. Qa4 Nd5 12. Qxc4 Bf5 13. Rac1 Nb6 14. Qb5 Nb4 15. Na4 N4d5 16. Nc5 c6 17. Qb3 Nd7 18. Nxd7 {Bowen,F (1886)-Rivas Terán,R ICCF 2014 1/ 2 (35)}) 7. c3 Ne4 8. Nbd2 f5 9. Bb5 O-O 10. Bxc6 bxc6 11. Qa4 Qd6 12. Nxe4 fxe4 13. Ne5 Be2 14. Re1 Bb5 15. Qc2 c5 16. a4 Qa6 17. dxc5 {MacArainn, G-McLatchie,J ICCF 2007 0-1 (27)}) (5... Qd7 6. b3 d4 7. d3 h5 8. e4 Bh3 9. gxh3 Qxh3 10. Ng5 Qh4 11. Qe1 Qxe1 12. Rxe1 e5 13. fxe5 Nh7 14. Nxh7 Rxh7 15. Rf1 Nxe5 16. Bb2 c5 17. Nd2 {Accola,B (1677)-Magill,R (1185) ICCF 2020 1-0 (45) }) 6. d4 O-O-O 7. Ne5 Bxe2 8. Qxe2 Qe6 9. f5 Qd6 10. Nxf7 Qd7 11. c4 Rg8 12. Nxd8 Qxd8 13. Nc3 g6 14. fxg6 Rxg6 15. cxd5 Nb8 16. Qf2 {Bruce,R (1912)-Bishop, E ICCF 2018 1-0}) (4... Qd7 5. Ne5 Nxe5 6. fxe5 Bxe2 7. Qxe2 O-O-O 8. d4 f6 9. exf6 exf6 10. Bd2 f5 11. Nc3 Nf6 12. O-O-O Re8 13. Rhf1 g6 14. h3 h5 15. a3 Bh6 16. Qd3 {Hernández Delgado,J (1895)-Piera i Arbat,J (1883) ICCF 2009 0-1 (60)}) 5. O-O (5. b3 Qf6 6. Nc3 O-O-O 7. O-O Bxf3 8. Bxf3 g5 9. Bb2 gxf4 10. Na4 Ne5 11. Bxd5 Rxd5 12. c4 Rd3 13. exf4 Qd8 14. Bxe5 Nf6 15. Bc3 Rg8 16. Rf3 Ng4 { Rhodes,J (2383)-Henri,J (2335) ICCF 2006 1-0 (47)}) 5... Bd6 (5... Qd7 6. b3 Nh6 7. h3 Bxf3 8. Bxf3 Nf5 9. g4 Nh4 10. Bh1 O-O-O 11. d4 h5 12. c4 hxg4 13. hxg4 g5 14. cxd5 exd5 15. Nc3 gxf4 16. Rxf4 Qe6 17. e4 {Harangus,E (1911) -Mellbin,K (1859) ICCF 2011 0-1}) (5... Qf6 6. c4 d4 7. Nxd4 Bxe2 8. Nxe2 Rd8 9. Qb3 b6 10. Qa4 Nge7 11. Nbc3 Qf5 12. d4 Qa5 13. Qc2 Rd7 14. a3 Qh5 15. b4 g6 {0-1 (15) Moser,M (1806)-Kramlová,J ICCF 2014}) 6. b3 (6. c4 Nf6 7. Nc3 dxc4 8. Bxc4 O-O 9. h3 Bxf3 10. Qxf3 Rb8 11. d4 Na5 12. Bd3 c5 13. Ne4 Be7 14. Nxf6+ Bxf6 15. Qh5 h6 16. Qxc5 b6 17. Qb5 Qc7 {Bruce,R (1776)-Wakeham,M (1640) ICCF 2014 1-0 (37)}) 6... Qf6 7. c3 (7. d4 Qh6 8. c4 Nf6 9. c5 Be7 10. Ne5 Bf5 11. Bb5 O-O 12. Bxc6 bxc6 13. Nxc6 Rfe8 14. Nc3 Bd8 15. Ne5 Ne4 16. Nxe4 Bxe4 17. Qe2 Be7 18. Qa6 Rec8 {Öunmaa,A (2096)-MacGregor,C (1945) ICCF 2010 1-0 (34)}) 7... Nge7 8. d4 Bf5 9. Ne5 h5 10. Nd2 h4 11. Ndf3 Bxe5 12. Nxe5 Nxe5 13. fxe5 Qg6 14. Ba3 Be4 15. Bf3 {Wetzenkircher,M-Bösendorfer,R ICCF 2008 0-1 (28)}) ( 3... a6 4. b3 (4. Be2 Bg4 (4... e6 5. O-O Nf6 6. b3 Bc5 7. d4 {1-0 (7) Alozy,F (1998)-Tellier,H ICCF 2010}) 5. d4 e6 6. c4 Nf6 7. O-O Be7 8. Nc3 O-O 9. a3 Bxf3 10. Rxf3 dxc4 11. Bxc4 Na5 12. Ba2 b5 13. b4 Nc4 14. Bxc4 bxc4 15. Qf1 a5 {Roynet,S (1968)-Fermen,G (1749) ICCF 2016 1-0 (27)}) 4... Bf5 5. Bb2 e6 (5... Nf6 6. Be2 e6 7. O-O h6 8. Ne5 Nxe5 9. fxe5 Nd7 10. d4 Qg5 11. Bc1 Be4 12. Bf3 f6 13. Bxe4 dxe4 14. Nc3 Qg6 15. exf6 gxf6 16. Ne2 Bd6 17. Nf4 {Jensen,K (2183) -Eide,J (2179) ICCF 2020 0-1 (31)}) 6. a3 Nf6 7. Bd3 (7. Be2 h5 8. d4 Ng4 9. Qd2 h4 10. Nc3 Be7 11. h3 Nf6 12. Ne5 Na7 13. Bf3 Nc8 14. O-O Nd6 15. Rae1 Rc8 16. Nd3 O-O 17. Nc5 b6 18. Nxa6 c5 {Louro,E (1904)-McDermott,F (2260) ICCF 2018 0-1 (36)}) 7... Be7 8. O-O O-O 9. Nc3 Ne4 10. Be2 Bf6 11. d4 Nxc3 12. Bxc3 Re8 13. Nd2 h6 14. g4 Bh7 15. Bd3 {Roynet,S (2150)-Sherwood,R (2373) ICCF 2019 0-1}) (3... g6 4. Be2 (4. d4 Bg7 (4... Bg4 5. Be2 Bxf3 6. Bxf3 e6 7. c4 Nge7 8. O-O Bg7 9. Nc3 O-O 10. cxd5 Nxd5 11. Nxd5 exd5 12. Qb3 Ne7 13. Qxb7 Qd6 14. Qb5 Rfb8 15. Qd3 c5 16. dxc5 {Snijders,J (2116)-Bongo Akanga Ndjila,B (1811) ICCF 2017 1-0 (42)}) (4... Bf5 5. Bb5 Bg7 6. O-O Nf6 7. c4 O-O 8. Nc3 Nb4 9. a3 c6 10. Ba4 Nd3 11. cxd5 Nxc1 12. Rxc1 Nxd5 13. Qd2 Qb6 14. Nxd5 cxd5 15. Rc5 Rfd8 16. Rfc1 {García Rosales,J (2008)-Ryder,A (2039) ICCF 2018 1/2 (38)}) 5. c3 Bf5 6. Bd3 e6 7. O-O Nf6 8. Ne5 O-O 9. b3 Nxe5 10. dxe5 Ng4 11. h3 Nh6 12. e4 Bxe4 13. Bxe4 dxe4 14. Qxd8 Raxd8 15. Nd2 Rd3 {Lindemann,R (2226)-Kruimer,W (2070) ICCF 2016 1-0 (27)}) 4... Bg7 5. O-O e5 (5... d4 6. Bb5 Bd7 7. c3 dxe3 8. d4 Nf6 9. Bxe3 O-O 10. Na3 Nd5 11. Qe2 a6 12. Bd3 Qc8 13. Ne5 Nxe5 14. fxe5 Bg4 15. Qd2 Nxe3 16. Qxe3 Qd7 17. Bc4 {Nardone,M-Noble,M (2437) ICCF 2006 1/2 (39)} ) (5... f5 6. d3 Nf6 7. a4 Bd7 8. Nc3 e6 9. Kh1 a6 10. Qe1 {1-0 (10) Smith,A (1669)-Neil,C (1527) ICCF 2015}) 6. fxe5 Nxe5 7. d4 Nc6 8. a3 Nge7 9. c4 O-O 10. Nc3 a6 11. b4 dxc4 12. Bxc4 Bg4 13. Ra2 Nf5 14. Ne2 Nd6 15. Bb3 {Accola, B-Mason,B ICCF 2014 0-1}) (3... e5 4. fxe5 Bg4 5. d4 (5. Bb5 Bc5 6. d4 Nge7 7. dxc5 a6 8. Bxc6+ bxc6 9. O-O O-O 10. Qe1 h6 11. b4 f6 12. Bb2 Qe8 13. exf6 gxf6 14. Nbd2 Rb8 15. a3 a5 16. Qg3 Qg6 {Steenlandt,A (1774)-Secondi,A (1496) ICCF 2015 1-0}) (5. Be2 Bxf3 6. Bxf3 Nxe5 7. O-O Nf6 8. b3 (8. Be2 Bd6 9. d4 Ng6 10. c4 O-O 11. c5 Be7 12. b4 Ne4 13. Qb3 Bg5 14. Nc3 Nxc3 15. Qxc3 Re8 16. g3 c6 17. Bd2 Nf8 18. Rf3 Nd7 19. h4 Bh6 {Williamson,D (1947)-Kruger,M (1976) ICCF 2014 1/2 (34)}) 8... c5 (8... Bd6 9. Bb2 c6 10. Qe2 Qc7 11. d3 Nxf3+ 12. gxf3 O-O-O 13. c4 Rhe8 14. Na3 d4 15. e4 Nh5 16. Nc2 Nf4 17. Qd2 Be5 18. Kh1 Re6 { Brennan,T-Doykos,T ICCF 2010 0-1}) 9. Bb2 Bd6 10. d3 Qb6 11. Kh1 h5 12. Nd2 g5 13. e4 g4 14. Be2 d4 15. Rxf6 O-O-O 16. Nc4 Nxc4 {Gultom,P (1758)-Guirgis,S ICCF 2018 0-1 (29)}) 5... Be7 6. Be2 f6 7. O-O Nh6 8. c4 O-O 9. cxd5 Qxd5 10. b3 fxe5 11. Bc4 Qxc4 12. bxc4 e4 13. h3 exf3 14. hxg4 Nxg4 15. Rxf3 {Riding,C (1702)-Blackmore,M (1749) ICCF 2019 1-0 (28)}) (3... h6 4. b3 a6 5. Bb2 Bf5 6. h3 e6 7. d3 Nf6 8. Qe2 Be7 9. g4 Bg6 10. a3 O-O 11. Bg2 Bc5 12. Nbd2 Nd7 13. h4 f6 14. h5 Be8 15. g5 {Bruce,R (1912)-Lappin,J ICCF 2017 1-0}) 4. Bb5 (4. Nc3 a6 5. Bd3 Bxd3 6. cxd3 Qd7 7. O-O e6 8. a3 d4 9. Ne2 dxe3 10. dxe3 Bc5 11. d4 Bb6 12. b4 Nge7 13. Qd3 O-O 14. Rb1 Qd5 15. Rb2 Qf5 {Moser,M (1806)-Piazza,L (2213) ICCF 2014 0-1}) (4. d3 Nf6 5. Be2 h6 (5... Bc8 6. b3 e6 7. Bb2 Bc5 8. d4 Bb4+ 9. c3 Bd6 10. O-O O-O 11. Nbd2 Ne7 12. Bd3 a6 13. Qe1 h6 14. Qh4 Nf5 15. Qh3 Nxe3 16. Rfe1 Nf5 17. g4 {Ward,B (1670)-Clark,M (1796) ICCF 2015 1/2 (33)}) 6. Bd2 e6 7. a3 a6 8. Bc3 Bc5 9. d4 Bd6 10. Bd3 Ne7 11. Nh4 Bxd3 12. Qxd3 Ne4 13. Nd2 f5 14. Ndf3 g5 15. Nxf5 exf5 {Chugg,M (1406)-Rice,R (1368) ICCF 2016 0-1 (55)}) 4... e6 (4... a6 5. Bxc6+ bxc6 6. O-O Nf6 7. Ne5 e6 8. Nxc6 Qd6 9. Nd4 Bg4 10. Nf3 Be7 11. b3 Rb8 12. Qe1 O-O 13. Bb2 Bxf3 14. Rxf3 Qc5 15. Ba3 Qxa3 16. Nxa3 {Sonnenfeld,W (1877)-Secondi,A (1649) ICCF 2017 1-0 (29)}) 5. Bxc6+ ( 5. b3 Nge7 6. Bb2 a6 7. Bxc6+ Nxc6 8. O-O h5 (8... Bc5 9. d4 Be7 10. c4 Nb4 11. Ne1 Qd7 12. a3 Nc6 13. Nc3 f6 14. Nf3 Na5 15. cxd5 exd5 16. Nh4 Bg4 17. Qc2 O-O 18. Nd1 b6 19. Nf2 f5 20. Nxg4 {Ward,B (1620)-Denham,C ICCF 2015 0-1 (29)}) 9. d3 f6 10. Nh4 Qd7 11. Nd2 O-O-O 12. Qe2 Bh7 13. a3 Bc5 14. b4 Ba7 15. Nb3 e5 16. f5 Kb8 {Vergani,A-Vorontsov,G (2037) ICCF 2014 1-0 (75)}) (5. O-O Nge7 6. d4 h5 7. Nbd2 h4 8. c3 Qd6 9. Qa4 a6 10. Re1 h3 11. g3 Qd8 12. Bf1 Qd7 13. e4 { 1-0 (13) Jan,P-Mall,S ICCF 2005}) 5... bxc6 6. c4 (6. d3 Bd6 7. Nbd2 Ne7 8. O-O O-O 9. Qe1 Qb8 10. e4 Bg6 11. Nb3 dxe4 12. dxe4 Qb4 13. Qxb4 Bxb4 14. c3 Bd6 15. e5 a5 16. exd6 cxd6 17. Nh4 Bc2 {Schmidt,T (2143)-Plume,G (2080) ICCF 2017 1-0 (51)}) (6. O-O Bd6 7. d3 Ne7 8. Qe1 O-O 9. e4 Bg6 10. b4 a5 11. bxa5 Bh5 12. Be3 Bxf3 13. Rxf3 Ng6 14. e5 Be7 15. Qc3 Qb8 16. Qxc6 Rxa5 17. Nd2 Bb4 { Castor,E (1875)-Chamaev,A ICCF 2010 0-1 (55)}) 6... Ne7 7. Qa4 f6 8. cxd5 exd5 9. b3 Bd3 10. Ba3 Qd7 11. Nd4 a5 12. Nc3 Ra6 13. Rc1 Kf7 14. h3 {Fister,B (2263)-Shpakovsky,A (2307) ICCF 2009 1/2 (52)}) (2... Bf5 3. e3 (3. g3 e6 (3... g6 4. Bg2 Nf6 5. d3 Bg7 6. O-O O-O 7. c3 Nc6 8. Na3 Qd7 9. Qb3 a5 10. Bd2 a4 11. Qc2 Rfe8 12. Rad1 e5 13. fxe5 Nxe5 14. Bf4 Nxf3+ 15. exf3 {Müllhaupt,P (2027)-Züger,A (1779) ICCF 2018 0-1}) (3... Nc6 4. Bg2 e6 5. c3 Nf6 6. Ne5 Nxe5 7. fxe5 Nd7 8. d4 c5 9. O-O Qb6 10. e3 Bg6 11. a4 h5 12. Qe2 h4 13. a5 Qc6 14. Nd2 hxg3 15. hxg3 {Vecek,M (2218)-Sitar,A (1942) ICCF 2012 1-0 (44)}) 4. Bg2 Nf6 5. O-O (5. b3 Bc5 (5... h5 6. Bb2 Nc6 7. e3 Nb4 8. d3 Ng4 9. Ke2 Bc5 10. Nd4 Qf6 11. Qd2 Nc6 12. c3 O-O-O 13. Na3 Bxd4 14. exd4 e5 15. h3 exf4 16. hxg4 Bxg4+ 17. Kf2 {Kaminski,J (1918)-Raijmaekers,C (2233) ICCF 2018 0-1 (29)}) ( 5... Nc6 6. Bb2 a5 7. e3 a4 8. a3 axb3 9. cxb3 Bc5 10. b4 Bb6 11. d4 Ne7 12. Nc3 c6 13. Ne5 Bc7 14. Qe2 Bd6 15. Bf3 h6 16. O-O O-O 17. Rfc1 {Sedlácek,T (2229)-Lyashenko,S (1965) ICCF 2017 1/2 (26)}) 6. e3 O-O 7. Bb2 Nbd7 8. Nc3 Qe7 9. O-O c6 10. Kh1 Bg6 11. Ne2 Rad8 12. a4 Bd6 13. d3 Ng4 14. Qc1 e5 15. Bh3 Ngf6 16. Nh4 Rfe8 {Veen,K (2101)-Wójcik,W (2130) ICCF 2005 1/2 (28)}) 5... Bd6 (5... Nc6 6. d3 (6. c3 Bd6 7. d3 O-O (7... a5 8. Na3 h6 9. Nb5 Bc5+ 10. Kh1 O-O 11. Bd2 Ne7 12. Nbd4 Bh7 13. b4 Bb6 14. a3 c6 15. Qc1 Ng4 16. c4 dxc4 17. Qxc4 Nd5 18. Nc2 Nf2+ 19. Rxf2 {Arnold,G (2221)-Pundak,M (2168) ICCF 2016 1/2 (60)}) 8. Na3 a6 9. h3 Re8 10. g4 Bg6 11. Nh4 Bc5+ 12. e3 Bxa3 13. bxa3 Nd7 14. Nxg6 hxg6 15. Rb1 Nb6 16. Qb3 Qd6 17. Rf2 Red8 {Oren,I (2327)-Julean,I (1780) ICCF 2008 1-0 (84)}) 6... Bd6 (6... Bc5+ 7. e3 O-O 8. Qe2 (8. h3 h6 9. a3 a5 10. b3 d4 11. e4 Bh7 12. Nbd2 Nd7 13. Qe2 e5 14. f5 b5 15. Nh2 Re8 16. Ndf3 Be7 17. g4 a4 18. b4 Ra6 19. Qf2 Ncb8 {Dovrinder,B (2428)-Goncharov,I (2401) ICCF 2011 1/ 2 (42)}) 8... a5 9. a4 Re8 10. Nc3 Bg4 11. d4 Bb6 12. h3 Bxf3 13. Bxf3 Ne7 14. g4 c5 15. Nb5 Rc8 16. b3 Ng6 17. c3 Nh4 18. Bh1 {Rickert,W (1994)-Mishin,A (2312) ICCF 2013 0-1 (43)}) 7. Nc3 O-O 8. Nb5 (8. e3 Re8 9. a3 h6 10. b4 a6 11. Bb2 Bh7 12. Qe2 Nd7 13. Qf2 a5 14. b5 Ne7 15. Ne5 c6 16. bxc6 bxc6 17. Nxd7 Qxd7 18. e4 a4 19. Bc1 f6 {Anderson,C-Tagoc,C ICCF 2020 1-0 (42)}) 8... Bc5+ ( 8... Be7 9. Bd2 a6 10. Nbd4 Qd7 11. Ne5 Nxe5 12. fxe5 Ng4 13. Nxf5 exf5 14. d4 a5 15. h3 Nh6 16. Bxh6 Rfe8 17. Bd2 h6 18. e3 Bf8 19. Qf3 g6 20. Qxd5 { Domenche Redondo,F (1800)-De León López,A (1495) ICCF 2015 1-0 (26)}) 9. e3 a6 10. Nbd4 Nxd4 11. Nxd4 Qd6 12. Bd2 Bxd4 13. exd4 Rfc8 14. b4 a5 15. bxa5 c5 16. Bc3 c4 17. Qd2 {Caponi,S-Maurizio,M (1723) ICCF 2013 1-0 (43)}) (5... Qd6 6. e3 Qb6 7. d3 Nc6 8. Nc3 Bd6 9. Qe2 O-O-O 10. h3 h6 11. a3 g5 12. g4 Nxg4 13. hxg4 Bxg4 14. Na4 Qa6 15. Nc3 gxf4 16. exf4 Rdg8 17. Kh2 {Jensen,K (2147)-Lefevre,S (2153) ICCF 2014 1-0 (64)}) (5... c6 6. e3 h6 7. d3 Nbd7 8. h3 g5 9. g4 Bg6 10. fxg5 hxg5 11. Nxg5 Bc5 12. Nc3 Qe7 13. Nf3 O-O-O 14. Qe1 e5 15. Nh4 Rdg8 16. Nxg6 Rxg6 17. Na4 {Thau,O (1704)-Látal,F (2182) ICCF 2020 0-1 (27)}) (5... Bc5+ 6. e3 O-O 7. Nc3 c6 8. b3 Nbd7 9. Bb2 Re8 10. Nh4 a5 11. Nxf5 exf5 12. Na4 Ba7 13. c4 Rb8 14. cxd5 cxd5 15. Nc3 d4 16. Nb5 dxe3 17. dxe3 {Vajas,S (1928) -Schelberg,M (1816) ICCF 2019 0-1 (69)}) 6. Nc3 (6. d3 Nbd7 7. Qe1 O-O 8. Nc3 c6 9. e4 dxe4 10. dxe4 Bc5+ 11. Kh1 Bg6 12. Nh4 e5 13. f5 Bh5 14. h3 Be7 15. g4 Nxg4 16. hxg4 Bxh4 17. Qe2 Bg3 {Schulenberg,H (2206)-Radytia,A (2041) ICCF 2017 1-0 (33)}) (6. e3 c5 7. b3 O-O 8. Bb2 Nbd7 9. d3 Bg4 10. h3 Bxf3 11. Qxf3 b5 12. c4 bxc4 13. dxc4 Ne4 14. Rd1 Nb6 15. Kh2 Qe7 16. cxd5 exd5 17. a4 a5 { Vecek,M (2323)-Züger,A (1777) ICCF 2017 1-0 (54)}) 6... O-O (6... c6 7. d3 h6 8. Qe1 Na6 9. e4 Bc5+ 10. Kh1 dxe4 11. dxe4 Bh7 12. Qe2 O-O 13. a3 Be7 14. b4 Nc7 15. Rd1 Qc8 16. Ne5 Nb5 17. Nxb5 cxb5 18. Bb2 {Anderson,C-Medina,F ICCF 2020 1-0 (44)}) 7. d3 Bg6 8. e3 c6 9. Nh4 Bh5 10. Qe1 Nfd7 11. e4 Qb6+ 12. Kh1 d4 13. Ne2 f6 14. Bh3 Bf7 {Anderson,C-Freire,D (1856) ICCF 2020 1-0 (52)}) (3. d4 e6 (3... Nc6 4. c3 (4. e3 a6 5. a3 e6 6. Bd3 Nf6 7. O-O h5 8. Bxf5 exf5 9. Nbd2 Qe7 10. Ne5 h4 11. h3 Qe6 12. Ndf3 Ne4 13. Re1 Nxe5 14. dxe5 O-O-O 15. Nd4 Qg6 {Zilková,M-Schöneckerová Kovácová,E ICCF 2010 0-1 (29)}) 4... e6 5. e3 Nf6 6. Bd3 Bd6 7. O-O O-O 8. Qc2 Ne7 9. Ne5 c5 10. Qe2 b6 11. Nd2 c4 12. Bxf5 exf5 13. Kh1 b5 14. a3 Rb8 15. Ndf3 {Cunningham,B (1597)-Davies,W ICCF 2018 0-1 (31) }) 4. e3 c5 5. c4 (5. dxc5 Nc6 6. Bb5 Bxc5 7. Bxc6+ bxc6 8. c3 Qc7 9. O-O Qxf4 10. Re1 Nf6 11. Kh1 Qc7 12. Nbd2 Ng4 13. Re2 Bd3 {0-1 (13) Peedikakkandy,S (1499)-Thew,B (2103) ICCF 2019}) 5... Nc6 6. Bd3 Bxd3 7. Qxd3 cxd4 8. Nxd4 Rc8 9. cxd5 Nxd4 10. Nc3 Nc6 11. O-O exd5 12. Nxd5 Nf6 13. Rd1 Qxd5 14. Qxd5 Nxd5 { Jaumin,J (1619)-Simonet,Y (1869) ICCF 2016 0-1 (35)}) (3. c4 e6 4. Qb3 Nc6 5. a3 Nf6 6. e3 dxc4 7. Qxc4 Be7 8. b4 O-O 9. Be2 Rc8 10. O-O Nb8 11. d4 Nbd7 12. Qb3 a5 13. Nc3 axb4 14. axb4 c6 {Avchinikov,V (2256)-Babychuk,V (2209) ICCF 2015 1/2 (36)}) (3. h3 e6 4. g3 Bg6 5. Bg2 Ne7 6. Nh4 c6 7. O-O Nd7 8. d3 Nf5 9. Nxf5 exf5 10. a4 Bh5 11. Qe1 Bc5+ 12. Kh1 a5 13. e4 dxe4 14. dxe4 O-O { García Rosales,J (2008)-Rusznák,Z (1958) ICCF 2018 0-1}) 3... e6 (3... c5 4. b3 e6 5. Bb2 Nc6 6. Bb5 Nge7 7. O-O a6 8. Be2 Qc7 9. Nh4 Rg8 10. Nc3 d4 11. Na4 g5 12. fxg5 O-O-O 13. Nxc5 dxe3 14. Nd3 Rxg5 15. Bf6 {Kaminski,J (1895) -Purwadijaya,N (1826) ICCF 2019 1-0 (57)}) 4. Be2 (4. b3 Be7 (4... a6 5. Bd3 Bxd3 6. cxd3 c5 7. Bb2 {Popov,A (2240)-Rivenburg,J (1741) ICCF 2013}) 5. Bb2 Bf6 6. Nc3 Nh6 7. d4 O-O 8. h3 Bh4+ 9. Nxh4 Qxh4+ 10. Kd2 c5 11. Qe1 Qxe1+ 12. Rxe1 cxd4 13. exd4 Nc6 14. g4 Nxd4 15. Bg2 Nxc2 {Arnold,G (2282)-Rumyantsev,V (1812) ICCF 2010 1-0 (46)}) (4. c4 Nf6 (4... c6 5. b3 Nf6 6. Be2 Be7 7. Bb2 O-O 8. O-O h6 9. d3 Nbd7 10. Nc3 Bh7 11. Qd2 a5 12. Rad1 Bb4 13. Ne5 Nc5 14. Qc2 a4 15. Nxa4 Nxa4 16. bxa4 {Maltais,C (2134)-Flatz,H (2318) ICCF 2016 1-0 (55)}) 5. cxd5 (5. Nc3 c6 6. cxd5 (6. Be2 Bd6 7. O-O h6 8. Ne5 O-O 9. d4 Nbd7 10. Bf3 Be7 11. b3 Bb4 12. Bb2 Nxe5 13. fxe5 Bxc3 14. Bxc3 Ne4 15. Bb4 Qg5 16. Qe2 Rfd8 17. a4 Rd7 {Maltais,C (2158)-Meneghetti,J (1792) ICCF 2017 1-0 (73)}) 6... exd5 7. Nh4 Be6 8. Nf3 Be7 9. d4 O-O 10. Bd3 c5 11. O-O Nc6 12. h3 Rc8 13. Re1 a6 14. Bd2 c4 15. Bc2 Nb4 16. Bb1 Nd3 {Bito,L (2115)-Gavrijski,D (2170) ICCF 2016 1-0 (58)}) 5... exd5 6. Qb3 Nc6 (6... Qc8 7. Nc3 c6 8. Nd4 Bd7 9. d3 Be7 10. Be2 O-O 11. Nf3 Na6 12. O-O Nc5 13. Qc2 a5 14. b3 Re8 15. Ne5 h6 16. Na4 Nxa4 17. bxa4 Bf5 18. Bb2 {Flor Trejo,R (2149)-Portych,V (2130) ICCF 2017 0-1 (61)}) 7. Qxb7 Nb4 8. Nd4 Bd7 9. a3 Rb8 10. Qxa7 Ra8 11. Qb7 c5 12. Nb5 Bc6 13. Qc7 Qxc7 14. Nxc7+ Kd8 15. Nxa8 Nc2+ {Gavrijski,D (1993)-Skornyakov,N ICCF 2010 1-0 (60) }) (4. c3 c5 5. Qb3 Qc7 6. d3 Nc6 7. Be2 Nf6 8. O-O Be7 9. c4 O-O 10. Nc3 Rfd8 11. Bd2 a6 12. a3 d4 13. exd4 Nxd4 14. Nxd4 Rxd4 15. Be3 Rd7 {Pisani,C (2139) -Buchaillot,L (2147) ICCF 2016 0-1 (38)}) (4. g3 Nf6 5. Bg2 Nc6 6. d3 (6. O-O h5 7. d3 (7. Nc3 Qd7 8. a3 O-O-O 9. Ne2 Bd6 10. b4 Ne7 11. Bb2 Ng6 12. Ned4 Bg4 13. h3 Bxf3 14. Qxf3 e5 15. Nb3 exf4 16. exf4 h4 17. f5 Ne5 18. Qe3 Nc6 { Andreassen,E (2157)-Friis,J (2218) ICCF 2010 1-0 (35)}) 7... a5 8. Qe1 Bc5 9. h3 Nb4 10. Qe2 O-O 11. Kh2 Nc6 12. Nbd2 Nb4 13. e4 dxe4 14. Nxe4 Bxe4 15. dxe4 Nd7 16. Ng5 Qe7 17. Qxh5 Nf6 {Zdziech,M-Bruno,G ICCF 2019 1-0}) 6... Qd6 7. Bd2 O-O-O 8. Bc3 Ng4 9. Qe2 h5 10. Bd2 Nb4 11. Na3 Qa6 12. h3 Nh6 13. Bc3 Bh7 14. g4 Nc6 15. Ng5 Bg8 {Murray,J-Morau,J (2153) ICCF 2013 0-1 (31)}) (4. h3 Be7 5. Nc3 Bh4+ 6. Ke2 Bg3 7. d3 Nc6 8. b3 Nf6 9. Bd2 d4 10. Nb5 dxe3 11. Bxe3 Nd5 12. Bf2 Bxf4 13. g3 a6 14. c4 Ndb4 15. Nbd4 Bxd3+ {Gonet Boisson,G-Alberny,M (2033) ICCF 2008 0-1}) 4... Nc6 (4... Bd6 5. O-O h6 6. c4 c6 7. b3 Nf6 8. Nc3 Nbd7 9. Bb2 Qc7 10. Rc1 O-O-O 11. cxd5 exd5 12. Nb5 Qb8 13. Ne5 Nxe5 14. Nxd6+ Qxd6 15. fxe5 Qe6 16. exf6 {Ackley,P (1944)-Holt,F (1796) ICCF 2013 1-0}) 5. O-O Nh6 ( 5... a6 6. d3 Qf6 7. Nc3 O-O-O 8. d4 h5 9. Ne5 Nge7 10. h3 Nxe5 11. fxe5 Qg6 12. Bd3 f6 13. Qe2 Bxd3 14. Qxd3 fxe5 15. dxe5 Qg3 16. e4 Qxd3 17. cxd3 { Lilleeng,A (2024)-Uifelean,A (1854) ICCF 2008 0-1 (46)}) (5... Bd6 6. b3 Qf6 7. d4 Qh6 8. c4 Nf6 9. c5 Be7 10. b4 O-O 11. b5 Nb4 12. a3 Nc2 13. Ra2 Ne1 14. Nbd2 Nxf3+ 15. Nxf3 Ne4 16. Bd2 Rfb8 17. c6 {Strange,M (2207)-Pérez Conde,F (2169) ICCF 2007 1-0 (49)}) 6. d3 (6. d4 Nb4 7. Na3 c5 8. c4 Be7 9. Qa4+ Nc6 10. Bd2 O-O 11. cxd5 exd5 12. dxc5 Bxc5 13. b4 Bb6 14. b5 Ne7 15. Nd4 Re8 16. Rac1 Be4 17. g4 Qd6 {Andreassen,E (2316)-Anderson,B (2346) ICCF 2007 0-1}) 6... Bc5 7. Bd2 O-O 8. Qe1 a6 9. d4 Be7 10. c4 Ng4 11. cxd5 exd5 12. Ne5 Ngxe5 13. fxe5 Be6 14. Bd3 {Egan,M (1975)-Moisa,L ICCF 2007 1/2}) (2... e6 3. b3 (3. e3 Nc6 (3... Be7 4. b3 Nh6 5. Bb2 (5. Bd3 O-O 6. Nc3 b6 7. O-O Na6 8. Be2 Bb7 9. Bb2 c5 10. d4 Nf5 11. Qd2 Nd6 12. Qc1 cxd4 13. exd4 Rc8 14. Nb5 Nxb5 15. Bxb5 Nc7 16. Bd3 Ba6 {Allen,E (1831)-Javier,C ICCF 2020 (30)}) 5... O-O 6. Bd3 c5 7. O-O Nc6 8. Bb5 Qc7 9. Bxc6 Qxc6 10. Ne5 Qc7 11. Qc1 b6 12. d3 Nf5 13. Rf3 f6 14. Ng4 d4 15. e4 {Kircher,C-Admakin,V ICCF 2017 0-1}) (3... g6 4. d4 (4. b3 Bg7 5. d4 Ne7 6. Bd3 Nd7 7. O-O c5 8. Bb2 O-O 9. Qe2 cxd4 10. Bxd4 Bxd4 11. exd4 Qc7 12. Ne5 b6 13. Nd2 Qc3 14. Qf2 a5 15. Rae1 Nf6 {Arnold,G (2302) -Matozo,P (2260) ICCF 2020 1-0 (92)}) 4... Nd7 5. Nc3 Bg7 6. Bd3 Ne7 7. a4 c5 8. O-O a6 9. b3 O-O 10. Ba3 b6 11. Ne2 Bb7 12. Ne5 Rc8 13. c4 Nf5 14. Bxf5 exf5 15. Nc3 {Pradeilles,G-Taffijn,M (1823) ICCF 2018 0-1 (36)}) 4. Bb5 Bd7 5. O-O ( 5. b3 Be7 6. O-O Bf6 7. d4 Nb4 8. Be2 Ne7 9. Ba3 a5 10. Qd2 Nbc6 11. Nc3 O-O 12. e4 dxe4 13. Nxe4 Re8 14. Nxf6+ gxf6 15. c3 b5 16. Bxb5 Nf5 {Le Feuvre, B-Toye,D (1713) ICCF 2011 1-0 (45)}) 5... a6 (5... Bd6 6. d4 Nf6 7. c3 O-O 8. Bd3 Ng4 9. Bxh7+ Kxh7 10. Ng5+ Kg8 11. Qxg4 e5 12. Qh4 Bf5 13. fxe5 Be7 14. Rxf5 Bxg5 15. Rxg5 f6 16. Rh5 Kf7 17. Rh7 {King,K-Secondi,A (1375) ICCF 2020 1-0}) 6. Bxc6 Bxc6 7. Ne5 Ne7 8. b3 f6 9. Nxc6 Nxc6 10. Bb2 Bd6 11. Qh5+ g6 12. Qh3 Rf8 13. Qxe6+ Be7 14. Nc3 Nb4 {Ackley,P (1944)-Claxton,T (1700) ICCF 2013 1-0 (36)}) (3. g3 Bd6 (3... c6 4. Bg2 f5 5. O-O Nf6 6. d4 Nbd7 7. c4 Be7 8. Ng5 Nb6 9. c5 Nc4 10. b3 Na5 11. Na3 b6 12. b4 Nb7 13. Bb2 O-O 14. Nc2 Bd7 15. Qd3 {Caponi,S-Damele,S ICCF 2012 1-0}) 4. Bg2 Nf6 5. d3 (5. b3 b5 6. Bb2 O-O 7. O-O Nbd7 8. Ne5 Bb7 9. e3 a5 10. d3 a4 11. bxa4 Rxa4 12. c4 c6 13. Rf2 Qa5 14. cxd5 cxd5 15. Nxd7 Nxd7 16. Nc3 Rb4 {Vajas,S (1928)-Sileika,A (1866) ICCF 2019 1/2 (46)}) (5. O-O O-O 6. d3 (6. Nc3 Nbd7 7. e4 dxe4 8. Ng5 Nc5 9. Qh5 Nxh5 { 0-1 (9) Latorre López,J-Recasens Sánchez,J ICCF 2006}) 6... c5 7. Qe1 Nc6 8. e4 dxe4 9. dxe4 e5 10. Na3 Re8 11. Nc4 Bc7 12. Nfxe5 Nxe5 13. Nxe5 Bxe5 14. fxe5 Qd4+ 15. Be3 Qxe5 16. Qf2 Be6 {Molina Navarro,J (2046)-Juárez de Vena,A (1968) ICCF 2012 1/2}) 5... O-O 6. h3 c5 7. Nc3 b6 8. e4 dxe4 9. dxe4 Ba6 10. e5 Nh5 11. Kf2 Be7 12. Qxd8 Rxd8 13. Nh2 Nd7 14. Bxa8 Rxa8 {Grapenfalk,H-Enoksson,B (1464) ICCF 2018 1-0}) (3. d3 c5 4. e4 dxe4 5. dxe4 Qxd1+ 6. Kxd1 Nh6 7. h3 b6 8. Bb5+ Bd7 9. a4 Nc6 10. Ne5 Nxe5 11. fxe5 Be7 12. Na3 Bxb5 13. axb5 a6 14. Ke2 axb5 {Rickert,W (2000)-Randolph,D (1941) ICCF 2013 1-0 (46)}) 3... Qf6 ( 3... Bd6 4. g3 c5 5. e3 Nc6 6. Bb2 f6 7. Bg2 Nge7 8. Na3 a6 9. O-O O-O 10. c3 b5 11. Nc2 Bb7 12. d4 c4 13. b4 Qc7 14. Qe2 h6 15. Bh3 {Ainsborough,G (1458) -Jakobi,W (1562) ICCF 2018 1/2}) (3... Nf6 4. Bb2 Be7 5. g3 O-O 6. e3 c5 7. Na3 (7. Bg2 Nc6 8. O-O b5 9. Ne5 Nxe5 10. fxe5 Nd7 11. Nc3 Ba6 12. Rf4 Qb8 13. Bxd5 exd5 14. Nxd5 Bg5 15. Rf5 h6 16. Rxg5 f6 17. Rxg7+ Kxg7 18. Qg4+ Kh8 {Capron,M (1951)-Persson,B (1956) ICCF 2018 1-0}) (7. c4 a6 8. Bg2 b5 9. cxd5 Nxd5 10. Nc3 Nb4 {0-1 (10) Roynet,S (2150)-Cruz Ramirez,E (2108) ICCF 2019}) 7... a6 8. c4 Nc6 9. Ne5 Nxe5 10. fxe5 Nd7 11. Bg2 f6 12. O-O Nxe5 13. d4 cxd4 14. exd4 Nf7 15. Rc1 {Vajas,S (1944)-Onisi,S ICCF 2019 0-1 (46)}) 4. d4 (4. Nc3 Qxf4 5. e3 Qg4 6. Bd3 Qxg2 7. Rg1 Qh3 8. Bb2 c6 9. Qe2 Nd7 10. e4 Nc5 11. O-O-O Ne7 12. Ng5 Nxd3+ 13. cxd3 Qh6 14. exd5 exd5 15. Rdf1 f6 {Andreassen,E (2157)-Løvås,R (1875) ICCF 2010 1-0 (26)}) 4... c5 5. e3 Nc6 (5... cxd4 6. exd4 Bd6 7. Ne5 Ne7 8. Bd3 Nf5 9. Bxf5 Qxf5 10. O-O O-O 11. a4 Nc6 12. Rf3 Qf6 13. Nc3 a6 14. a5 Qe7 15. Nxc6 bxc6 16. Na4 Rb8 17. Qd3 {Avchinikov,V (2256)-Loik,G (1977) ICCF 2015 1-0 (49)}) 6. Bb5 Bd7 7. O-O Bd6 8. Ne5 cxd4 9. exd4 Nge7 10. c3 g6 11. Qe2 Bxe5 12. fxe5 Qg7 13. Bg5 Rg8 14. Nd2 {Thau,O (1704)-Krishna,P (1617) ICCF 2020 1-0 (27)}) (2... h5 3. e3 (3. b3 Bg4 4. e3 e6 5. Bb2 Ne7 6. h3 Bf5 7. Nc3 Nbc6 8. Qe2 Qd7 9. O-O-O O-O-O 10. Na4 Ng6 11. Kb1 f6 12. d3 e5 13. g3 Kb8 14. fxe5 Ngxe5 {Ribés Colom,J (2248)-Martín Molinero,R (2429) ICCF 2018 1/2 (47)}) 3... Bg4 4. Be2 (4. d4 e6 5. c4 Ne7 6. Nc3 c6 7. h3 Bxf3 8. Qxf3 h4 9. Bd3 f5 { 0-1 (9) Díaz Félez,F (1629)-Martín Molinero,R (2429) ICCF 2018}) (4. h3 Bxf3 5. Qxf3 h4 6. d4 e6 7. c4 f5 8. cxd5 exd5 9. Bd3 g6 10. O-O Nf6 11. Qd1 Nbd7 12. Nd2 c6 13. Nf3 Ne4 14. Bd2 Ng3 15. Re1 Be7 {Díaz Rubí,F (2229)-Martín Molinero, R (2429) ICCF 2018 1/2 (45)}) 4... e6 5. c4 (5. O-O Ne7 6. c4 c6 7. Nc3 Nf5 8. cxd5 cxd5 9. Qb3 Bxf3 10. Rxf3 Qd7 11. d4 Nc6 12. Bd2 g6 13. Rc1 Be7 14. Qd1 O-O 15. Na4 b6 16. Ba6 Rab8 {Pallás Muiño,J (2318)-Martín Molinero,R (2429) ICCF 2018 0-1 (47)}) 5... c6 6. b3 Ne7 7. O-O Nf5 8. Bb2 Be7 9. Na3 Nd7 10. Nc2 Bf6 11. Ne5 Qc7 12. d4 Bxe2 13. Qxe2 g6 14. Ba3 {Guevara i Pijoan,J (2326) -Martín Molinero,R (2429) ICCF 2018 1/2 (26)}) (2... b6 3. e3 (3. d4 Ba6 4. e3 Bxf1 5. Rxf1 Nd7 6. Kf2 Ngf6 7. Kg1 Ne4 8. Nbd2 Nxd2 9. Qxd2 h6 10. a3 e6 11. b4 c5 12. c3 Nf6 13. Bb2 cxb4 14. cxb4 Bd6 {Velez Arana,J (1640)-Azzi,R (1551) ICCF 2017 1-0 (44)}) 3... Bb7 (3... Nf6 4. c4 e6 5. d4 Bd6 6. Nc3 O-O 7. Be2 Bb7 8. O-O c5 9. a3 Re8 10. Qd3 dxc4 11. Qxc4 Nbd7 12. Ne5 a6 13. Qd3 b5 14. Nxd7 Nxd7 15. a4 {Roynet,S (2121)-Lyashenko,S (1965) ICCF 2017 1/2 (59)}) 4. b3 Nf6 5. Bb2 Nbd7 6. Be2 e6 7. O-O Bd6 8. a4 a6 9. Qe1 Qe7 10. Ne5 Rg8 11. d4 g5 12. Nd2 O-O-O 13. Ndf3 Ne4 14. Nxd7 {Roth,P (2005)-Kubala,L ICCF 2007 0-1}) ( 2... c6 3. e3 Bf5 4. Be2 Nd7 5. O-O e6 6. b3 h6 7. Bb2 {1-0 (7) Urtans,R-Maas, J ICCF 2019}) (2... f6 3. e3 Nc6 (3... e6 4. Be2 Bd6 5. O-O h6 6. b3 g5 7. Nd4 a6 8. Bh5+ Ke7 9. Bb2 gxf4 10. exf4 Rh7 11. Qe1 Bd7 12. Nf5+ Kf8 13. Nxd6 cxd6 14. d3 Nc6 15. Ba3 {Accola,B (1635)-Jacobs,G (1346) ICCF 2018 1-0 (42)}) (3... f5 4. b3 Nf6 5. Bb2 e6 6. Nc3 a6 7. Be2 Nbd7 8. O-O Bc5 9. Ne5 Nxe5 10. fxe5 Ne4 11. Na4 Ba7 12. c4 d4 13. d3 Ng5 14. c5 dxe3 15. Qc1 {Thommen,J (1865) -Lizardo,J ICCF 2010 1-0 (49)}) 4. Bb5 a6 5. Bxc6+ bxc6 6. O-O h5 7. d4 Bg4 8. Qd3 Qd7 9. Nh4 Rh6 10. f5 e6 11. Nc3 Ne7 12. e4 e5 13. Bxh6 gxh6 14. h3 { Guinefolleau,M (1956)-Loison,F (1544) ICCF 2018 1-0 (29)}) (2... a6 3. d3 e6 4. e3 c5 5. Be2 Nf6 6. O-O Bd6 7. Qe1 Qc7 8. Qg3 O-O 9. Nc3 Nc6 10. Ng5 b5 11. a3 h6 12. Nh3 Bd7 13. Bf3 b4 14. axb4 {Darias Mateos,A (1842)-Veiga Rodriguez,P ICCF 2012 0-1 (31)}) (2... Nd7 3. Nc3 e6 4. e3 a6 5. d4 Bd6 6. e4 Nb6 7. Bd3 c6 8. e5 Bc7 9. b3 Nh6 10. Ba3 Nd7 11. Qd2 b6 12. O-O c5 13. Ng5 Nf5 14. Bxf5 { Bruce,R (1871)-Gosling,D (1475) ICCF 2016 1-0}) (2... Qd6 3. d3 Bg4 4. e3 d4 5. exd4 f5 6. Be2 Nc6 7. c3 O-O-O 8. Na3 Nf6 9. Nc4 Qe6 10. Nce5 Nxe5 11. fxe5 Nd5 12. Ng5 Qg8 13. Bxg4 h6 14. Bxf5+ {Beijer,B (1830)-Vaessen,J (1461) ICCF 2018 1-0 (31)}) 3. e3 (3. c4 c6 (3... d4 4. b4 (4. e4 c5 (4... Nf6 5. d3 Nc6 6. Be2 Bg7 7. Na3 O-O 8. O-O Nd7 9. e5 Nc5 10. Nc2 a5 11. b3 f6 12. Ba3 b6 13. exf6 exf6 14. Nh4 f5 15. Bf3 Qd6 16. Qd2 {Arnold,G (2306)-Gerasimov,V (2307) ICCF 2009 1/2 (28)}) 5. d3 Nh6 (5... Bg7 6. g3 (6. Be2 Nc6 7. O-O Nh6 8. Na3 Bd7 9. Bd2 Qb6 10. Rb1 {1-0 (10) Kolpakov,N-Kaya,Y ICCF 2013}) 6... Nc6 (6... Nh6 7. Bg2 e5 8. h3 exf4 9. Bxf4 f6 10. O-O O-O 11. e5 fxe5 12. Bg5 Qc7 13. Nbd2 Bd7 14. Ne4 Na6 15. a3 Nf5 16. g4 Ne3 17. Bxe3 dxe3 18. Qe2 {Burmeister,F (2216) -Pulido Pino,R (2212) ICCF 2020 1/2 (30)}) 7. e5 Nh6 8. Bg2 O-O 9. Nbd2 f6 10. O-O Qb6 11. exf6 exf6 12. Re1 Bd7 13. Ne4 Rae8 14. Bd2 f5 15. Nf2 Bf6 16. a3 a5 17. Rb1 {Burmeister,F (2216)-Moujan,P (2253) ICCF 2020 1/2 (41)}) (5... Nc6 6. Be2 f6 7. O-O Nh6 8. Na3 Nf7 9. Bd2 Bh6 10. Nc2 O-O 11. Nh4 e6 12. g3 a5 13. Na3 e5 14. f5 Kg7 15. Bxh6+ Nxh6 16. g4 Bd7 17. Nb5 {Roynet,S (2121)-Cumming,D (2370) ICCF 2017 1/2 (68)}) 6. Be2 Bg7 7. O-O (7. h3 Nc6 8. Na3 f6 9. Nc2 Nf7 10. b4 cxb4 11. Rb1 a5 12. a3 bxa3 13. Bxa3 e5 14. Bc5 Bf8 15. Bb6 Qe7 16. Rb5 Bh6 17. fxe5 fxe5 18. Bc5 Nd6 {Gibson,T (1902)-Osorio Barahona,J ICCF 2013 0-1 (36)}) 7... O-O 8. Na3 (8. b4 cxb4 9. a3 b3 10. Qxb3 Nd7 11. a4 Ng4 12. h3 Ngf6 13. Qa3 Nh5 14. Bd1 Qc7 15. Ne1 e6 16. g4 Nhf6 17. e5 {1-0 (17) Burmeister,F (2216)-Campani,P (2237) ICCF 2020}) 8... Nc6 9. Qe1 a6 10. Bd2 Qd6 11. Rb1 f6 12. Nc2 b5 13. cxb5 axb5 14. Na3 Qc7 15. Nxb5 Qb6 {Arnold,G (2360)-Klausen,T (2486) ICCF 2008 1/2 (30)}) (4. e3 Nc6 (4... c5 5. exd4 (5. e4 Qa5 6. Bd3 Bh6 7. Ng5 e5 8. Qf3 exf4 9. Nh3 Nc6 10. Nxf4 Ne5 11. Qd1 Bxf4 12. Be2 d3 13. Bf3 Qd8 14. O-O Qh4 15. g3 Bxg3 16. hxg3 Qxg3+ {Voglimacci,N (1658)-Merrheim,X (2072) ICCF 2012 0-1}) (5. b4 Bg7 6. Bb2 b6 7. Bd3 {1-0 (7) Gonet Boisson, G-Eeckhout,J (1812) ICCF 2008}) 5... cxd4 6. d3 Bg7 7. Be2 Nh6 8. O-O O-O 9. Na3 Nc6 10. Nc2 a5 11. Ne5 Qd6 12. Nxc6 bxc6 13. b3 Nf5 14. Qe1 Re8 15. Bf3 e5 16. g4 {Arnold,G (2422)-Nielsen,P (2336) ICCF 2006 1-0 (40)}) 5. b4 dxe3 6. Bb2 Nf6 7. b5 exd2+ 8. Nbxd2 Nb8 9. c5 a6 10. Qa4 Bh6 11. Be2 O-O 12. O-O c6 13. b6 Be6 14. Rad1 Nbd7 15. Qa3 Bxf4 {Arnold,G (2419)-Weber-Widmer,D (2310) ICCF 2007 1/2 (60)}) 4... Bg7 (4... Nh6 5. Qa4+ Bd7 6. Qb3 Bg7 7. Bb2 Bg4 8. h3 Bxf3 9. Qxf3 e5 10. g4 Nd7 11. d3 O-O 12. Nd2 exf4 13. Qxf4 f5 14. g5 Nf7 15. h4 Nde5 16. O-O-O {Straka,J (2181)-Cumming,D (2296) ICCF 2013 0-1 (36)}) 5. Bb2 Nh6 6. e3 c5 (6... e5 7. fxe5 dxe3 (7... Nc6 8. exd4 Bg4 9. Qe2 Nxd4 10. Qe4 Nxf3+ 11. gxf3 Bf5 12. Qe3 O-O 13. d4 a5 14. b5 c5 15. d5 Re8 16. Nd2 Qh4+ 17. Kd1 b6 18. Be2 a4 19. Bc3 {Fagerbekk,E (2052)-Sjøl,H (2244) ICCF 2008 1/2 (30)} ) 8. d4 g5 9. Bd3 (9. h3 Nf5 10. Nc3 Ng3 11. Rh2 f5 12. Bd3 Nc6 13. Ne2 Nxe2 14. Qxe2 Nxb4 15. Qxe3 f4 16. Qd2 Nxd3+ 17. Qxd3 O-O 18. Kf2 c6 19. Rhh1 Bf5 20. Qc3 Re8 {Green,P (2078)-Campbell,E (2100) ICCF 2016 1/2 (40)}) 9... g4 10. Ng1 Nc6 11. Ne2 Nxb4 12. Qa4+ Nc6 13. Nbc3 O-O 14. Rd1 Bf5 15. Bc2 Bxc2 16. Qxc2 Qg5 17. Ne4 Qg6 18. Nf4 {Green,P (2248)-Musumeci,J ICCF 2020 1-0}) 7. bxc5 Nc6 8. Bd3 O-O 9. Be4 dxe3 10. Bxg7 Kxg7 11. O-O Qa5 12. dxe3 Qxc5 13. Qb3 (13. Qd3 Rd8 14. Qc3+ f6 15. Nbd2 Nf5 16. Nb3 Qb4 17. Qxb4 Nxb4 18. a3 Nc6 19. Rfe1 Nd6 20. Bd5 Rb8 21. e4 Nf7 22. Rab1 e5 23. Nc5 Rd6 24. Nd3 exf4 {Fagerbekk,E (2052)-Wicklund-Hansen,G (2080) ICCF 2008 1/2 (43)}) 13... Nf5 14. Re1 Nd6 15. Nbd2 {Geus,A (2165)-Hudák,D (2278) ICCF 2010 1/2 (62)}) (3... Nf6 4. cxd5 Nxd5 5. d4 Bg7 6. e4 Nb6 7. Nc3 (7. Bb5+ c6 8. Be2 Bg4 9. Nbd2 O-O 10. h3 Bc8 11. Nb3 f5 12. e5 Nd5 13. Bd2 b6 14. h4 h5 15. O-O Bh6 16. Nc1 a5 17. Bc4 Na6 18. Nd3 Nac7 {Roynet,S (2121)-Deforel,J (2059) ICCF 2017 1/2 (42)}) 7... Bg4 8. Be3 O-O 9. Qd2 (9. Be2 Nc6 10. d5 Na5 11. Ne5 Bxe2 12. Qxe2 f6 13. Nf3 f5 14. Bd4 fxe4 15. Qxe4 Bxd4 16. Nxd4 Qd6 17. O-O c6 18. dxc6 Nxc6 19. Ne6 Rf6 20. Rae1 Rc8 {Roynet,S (2058)-Marchant,A (1901) ICCF 2017 1-0 (28)}) 9... Nc6 10. d5 Bxf3 11. gxf3 Na5 12. b3 c6 13. Rd1 cxd5 14. Nb5 Nc6 15. exd5 {Fagerbekk, E-Kauppinen,M (2260) ICCF 2007 1/2 (32)}) (3... e6 4. e3 (4. g3 Bg7 5. Bg2 Ne7 (5... c5 6. O-O Ne7 7. d3 b6 8. Na3 O-O 9. e4 Nbc6 10. Qe2 dxc4 11. dxc4 e5 12. Rd1 Nd4 13. Nxd4 cxd4 14. Nc2 h5 15. Rd3 Ba6 16. Na3 Qd7 17. Bd2 {Ragnarsson,J (2151)-Kohlstetter,P (2186) ICCF 2019 0-1 (53)}) 6. O-O (6. d4 O-O 7. Nc3 a6 8. O-O dxc4 9. Ne5 Nbc6 10. e3 Nxe5 11. fxe5 c5 12. Ne4 cxd4 13. exd4 Nf5 14. Bg5 Qxd4+ 15. Qxd4 Nxd4 16. Nf6+ Bxf6 17. Rxf6 c3 {Jung,R (2309)-Wichert,G (2302) ICCF 2018 1/2 (34)}) 6... b6 (6... O-O 7. d4 c5 8. dxc5 Qc7 9. Be3 Bxb2 10. Nbd2 Na6 11. Rb1 Ba3 12. Nd4 Bxc5 13. Bf2 b6 14. N2b3 Bb7 15. Nxc5 Nxc5 16. Nb5 {Kazoks,A (2287)-Chipkin,L (2201) ICCF 2020}) 7. d4 O-O 8. Nc3 dxc4 (8... Bb7 9. Ne5 Nd7 10. cxd5 exd5 11. b4 Nf6 12. Qb3 Ne4 13. a4 Kh8 14. a5 a6 15. e3 f6 16. Nf7+ Rxf7 17. Bxe4 f5 18. Bf3 b5 19. Ra2 c6 20. Nd1 {Heß,H (2317) -Goncharov,I (2367) ICCF 2018 1/2 (37)}) 9. Ne5 Nd5 10. e4 Nb4 11. Be3 c5 12. d5 exd5 13. exd5 a5 14. Nb5 Bf5 15. d6 Nd7 {Dabrowski,J-Gilliland,B ICCF 2018 1/2 (56)}) (4. Qa4+ Nc6 5. e3 Bd7 6. Qd1 d4 7. Be2 Nh6 8. O-O Bg7 9. Na3 dxe3 10. dxe3 Qe7 11. e4 O-O-O 12. Qe1 Kb8 13. Kh1 Ng4 14. Nc2 h5 15. a3 e5 { Drost,P (2149)-De Vos,P ICCF 2020}) 4... c5 (4... Bg7 5. d4 (5. Nc3 Ne7 (5... Nf6 6. b4 O-O 7. Bb2 Nc6 8. Qb3 d4 9. Nd1 b6 10. g3 Bb7 11. Bg2 Qd6 12. c5 Qd8 13. cxb6 dxe3 14. Nxe3 cxb6 15. O-O a5 16. a3 b5 17. Bc3 {Roynet,S (2106) -Vliet,E (2085) ICCF 2018 0-1 (51)}) 6. b4 Nbc6 (6... O-O 7. Rb1 b6 8. Bd3 Bb7 9. O-O Nd7 10. Bb2 c5 11. a3 d4 12. exd4 Bxf3 13. Qxf3 Bxd4+ 14. Kh1 h5 15. Bc1 Bg7 16. Bb2 Rb8 17. Be4 a6 18. Rfd1 {Roynet,S (2121)-Ernst,C (2155) ICCF 2017 0-1 (71)}) 7. Qa4 O-O 8. d4 dxc4 9. b5 Nb8 10. Bxc4 a6 11. O-O b6 12. Ne5 Bb7 13. bxa6 Nxa6 14. Qb3 c5 15. Rd1 cxd4 16. exd4 Nc7 {Prakash,O (2427)-Fourie,M (2373) ICCF 2020 1/2 (31)}) 5... Ne7 (5... c5 6. dxc5 Nf6 7. Be2 O-O 8. O-O Qe7 9. Nc3 Rd8 10. Qb3 Na6 11. cxd5 Nxc5 12. d6 Qxd6 13. Qa3 Bf8 14. Ne5 Bd7 15. Bf3 Be8 16. Qa5 Rac8 17. Rd1 {Roynet,S (2182)-Tamayo Gutiérrez,R (2156) ICCF 2018 0-1 (34)}) (5... Nf6 6. Nc3 c5 7. cxd5 exd5 8. Bb5+ Nc6 9. dxc5 O-O 10. O-O Re8 11. Qb3 Bg4 12. Ba4 Rb8 13. Rd1 Qe7 14. Nxd5 Nxd5 15. Qxd5 Rbd8 16. Qg5 Rxd1+ 17. Bxd1 {Díaz Félez,F (1629)-Díaz Rubí,F (2229) ICCF 2018 0-1}) 6. Nc3 c5 7. dxc5 O-O 8. Rb1 Nd7 9. cxd5 exd5 10. Nxd5 Nxc5 11. Nc3 Qb6 12. Bc4 Bxc3+ 13. bxc3 Qxb1 {0-1 (13) Burmeister,F (2216)-Lemke,B (2277) ICCF 2020}) 5. b3 ( 5. cxd5 exd5 6. Bb5+ Nd7 7. O-O a6 8. Bxd7+ Bxd7 9. Nc3 Bg7 10. d4 cxd4 11. Nxd4 Ne7 12. Qb3 Bc6 13. Nce2 O-O 14. Bd2 Qd7 15. f5 Nc8 16. fxg6 hxg6 { Green,P (2200)-Leenders,C (2200) ICCF 2019 1/2}) (5. d4 cxd4 6. cxd5 exd5 7. Qxd4 Nf6 8. Bb5+ Bd7 9. Bxd7+ Nbxd7 10. Nc3 Bc5 11. Qd3 Qe7 12. O-O O-O 13. Nxd5 Nxd5 14. Qxd5 Nf6 15. Qe5 Rfe8 16. g3 Rac8 {Burmeister,F (2216)-Mondino,V (2285) ICCF 2020 1/2}) 5... Bg7 6. Nc3 Ne7 7. Bd3 Nbc6 8. Bb2 b6 9. Qb1 O-O 10. O-O Rb8 (10... Ba6 11. Nd1 d4 12. Nf2 Bb7 13. e4 f6 14. a3 Qc7 15. Nh3 Rae8 16. b4 g5 17. fxg5 f5 18. exf5 exf5 19. Kh1 Ne5 20. Nhg1 N7g6 21. Nxe5 Nxe5 22. Bxf5 {Roynet,S (2121)-Bucsa,I (2323) ICCF 2017 0-1 (55)}) 11. a3 d4 12. Ne2 Nf5 13. e4 Nh4 14. e5 f5 15. Nxh4 {Roynet,S (2121)-Kolesnikova,K (2080) ICCF 2017 0-1 (74)}) 4. e3 (4. Na3 Nf6 5. e3 Bg7 6. d3 O-O 7. Be2 c5 8. O-O Nc6 9. Ne5 Qb6 10. Nxc6 bxc6 11. Bf3 Rd8 12. Qc2 Ne8 13. cxd5 cxd5 14. Nc4 dxc4 15. Bxa8 cxd3 {Ott,P-Adamson,T (1499) ICCF 2017 0-1 (27)}) 4... Bg7 5. d4 (5. Nc3 Nf6 6. Be2 O-O 7. O-O Bf5 (7... Nbd7 8. d4 Ne4 (8... dxc4 9. Bxc4 Nb6 10. Bd3 Bg4 11. Qc2 e6 12. Ne5 Bf5 13. e4 Qxd4+ 14. Kh1 Bg4 15. h3 Nh5 16. Nxg4 Ng3+ 17. Kh2 Nxf1+ 18. Bxf1 f5 19. Be3 Qd6 20. e5 {Raby,E (1980)-Borges Medina,J ICCF 2012 1-0 (38)}) 9. Nxe4 dxe4 10. Ne5 Nxe5 11. fxe5 f6 12. exf6 Rxf6 13. Rxf6 exf6 14. Bd2 Be6 15. Qb3 b6 16. Rd1 Rc8 17. Bb4 f5 18. d5 cxd5 19. cxd5 {Harangus,E (1979)-Froogh,Z ICCF 2009 1-0 (42)}) (7... a6 8. d4 b5 9. b3 Qd6 10. Ne5 Ne4 11. Nxe4 dxe4 12. cxb5 axb5 13. a4 Be6 14. Ba3 b4 15. Bb2 Nd7 16. Qc2 Bd5 17. Nc4 Qc7 18. Rfc1 e6 19. Qd2 {Vestergård,S (2326)-Jørgensen,B (2170) ICCF 2006 1/2 (34)}) 8. Qb3 (8. Nd4 Bc8 9. cxd5 cxd5 10. b3 Nc6 11. Nxc6 bxc6 12. Ba3 d4 13. Na4 Nd5 14. Bc5 dxe3 15. dxe3 Bxa1 16. Qxa1 Nb6 17. Nc3 Qc7 18. Qc1 a5 19. e4 Ba6 {Reis,J-Voigt,D (1804) ICCF 2009 0-1 (42)}) 8... Qb6 9. d4 Qxb3 10. axb3 Rd8 11. Bd2 Nbd7 12. cxd5 cxd5 13. h3 Nb6 14. g4 Bc2 15. Ra3 h6 16. Rc1 Be4 { Fagerbekk,E-Achermann,J (1796) ICCF 2007 1/2 (74)}) 5... Nf6 6. Nc3 O-O 7. Qb3 (7. cxd5 cxd5 (7... Nxd5 8. Qb3 (8. Bc4 e6 9. O-O Nxc3 10. bxc3 Nd7 11. Ba3 Re8 12. Ne5 Nb6 13. Bb3 Nd5 14. Qe1 f5 15. e4 fxe4 16. Rc1 a5 17. Qxe4 Nf6 18. Qb1 Nd7 19. f5 Nxe5 {Sonnenfeld,W (1877)-Adamson,T (1568) ICCF 2017 1-0 (26)}) 8... Nxc3 9. bxc3 c5 10. Bd3 Nd7 11. Qc2 Qc7 12. O-O e6 13. Qe2 Rd8 14. Ne5 b6 15. Bb2 Bb7 16. e4 Nxe5 17. fxe5 Rd7 18. Rf3 Bc6 19. Raf1 {Green,P (2248)-Nemec,Z (2177) ICCF 2020 1/2 (29)}) 8. Bd3 (8. Bd2 Nc6 9. Bd3 Bg4 10. Rc1 a6 11. h3 Bxf3 12. Qxf3 Rc8 13. O-O b5 14. Nd1 e6 15. Nf2 Qb6 16. Kh2 Rc7 17. Ng4 Rfc8 18. Nxf6+ Bxf6 19. Kh1 Bg7 {Roynet,S (2121)-Kuteneva,G (2226) ICCF 2017 1/2 (41)}) 8... Nc6 9. O-O (9. Ne5 Be6 (9... Bf5 10. Bxf5 gxf5 11. O-O Rc8 (11... e6 12. Nxc6 bxc6 13. Na4 Ne4 14. Bd2 Qb8 15. b4 Nd6 16. Nc5 Qc7 17. Qe2 h6 18. Rfc1 Nc4 19. a3 Rfc8 20. Nb3 Rab8 21. Be1 Qd7 22. Ra2 Kh7 23. Nd2 {Cumming,D (2369)-Vidal Melendez,I ICCF 2020 (45)}) 12. Bd2 Ne4 13. Nxe4 fxe4 14. Bc3 f5 15. Kh1 Nxe5 16. dxe5 Rc6 17. Rg1 Rg6 18. Qa4 a6 19. Rac1 Kh8 20. Ba5 b6 21. Bb4 {Bassanini,M (1872)-Maffioletti,F ICCF 2014 1/2 (49)}) 10. O-O Rc8 11. Bd2 Ne8 12. Nxc6 Rxc6 13. Qf3 Nf6 14. f5 gxf5 15. Bxf5 Bxf5 16. Qxf5 e6 17. Qf3 Qb6 18. Rab1 Nd7 19. Kh1 Qd8 20. Rbc1 Qb6 {Roynet,S (2121)-Salzmann,S (2347) ICCF 2017 1/2 (35)}) 9... Nb4 10. Bb1 b6 11. Qa4 Na6 12. Ne5 Nc7 13. Bd3 Nce8 14. Bd2 Nd6 15. Rfc1 Bb7 16. Rc2 e6 17. Nb5 Nc4 18. Nxc4 dxc4 {Green,P (2248) -Taylor,B (2124) ICCF 2020 (27)}) (7. Be2 dxc4 (7... Bg4 8. h3 Bxf3 9. Bxf3 e6 10. O-O Ne8 11. b3 Na6 12. Ba3 Nd6 13. Qd3 Re8 14. g4 f5 15. Bg2 Ne4 16. cxd5 exd5 17. Nxe4 fxe4 18. Qd2 Bf8 19. b4 {Fagerbekk,E (2052)-Meyer,J (1951) ICCF 2007 1/2}) (7... Bf5 8. O-O Nbd7 (8... dxc4 9. Ne5 (9. Bxc4 Nbd7 10. Qe2 Nb6 11. Bb3 Nbd5 12. Ng5 Qb6 13. Kh1 Bg4 14. Qd3 h6 15. Nf3 Nxc3 16. bxc3 Bf5 17. Qe2 c5 18. Ba3 Ne4 19. Rac1 Qa5 20. Qb2 Rfc8 {Bito,L (2000)-Jacobs,R (2235) ICCF 2010 0-1 (52)}) 9... c5 10. dxc5 Qc7 11. Nxc4 Na6 12. c6 Qxc6 13. Ne5 Qb6 14. Qb3 Nc5 15. Qxb6 axb6 16. Bd2 Rfd8 17. Be1 Nfd7 18. Nd5 Be4 19. Nxd7 Nxd7 20. Rd1 {Ricard,J (2274)-Salzmann,S (2266) ICCF 2007 0-1}) 9. cxd5 cxd5 10. Qb3 Nb6 11. Ne5 a5 12. Bd2 a4 13. Qb4 h5 14. Rfc1 e6 15. Nb5 Ne4 16. Be1 Rb8 17. b3 Nd7 18. Nxd7 Qxd7 19. Rc7 {Geus,A (2020)-Cormack,W (1921) ICCF 2020 (40)}) ( 7... c5 8. dxc5 dxc4 9. O-O Qc7 10. Bxc4 Qxc5 11. Qe2 Nc6 12. a3 e5 13. b4 Qe7 14. Ra2 e4 15. Nd2 Bg4 16. Qe1 Rac8 17. Rc2 Be6 18. Qe2 Rfd8 19. Bb2 { Bassanini,M (1858)-Grossi,R ICCF 2013 0-1 (40)}) 8. Bxc4 Nbd7 (8... c5 9. d5 ( 9. O-O cxd4 10. Nxd4 (10. Qxd4 Nc6 (10... Qxd4 11. Nxd4 Nbd7 12. Rd1 Nb6 13. Be2 Bg4 14. e4 Rfd8 15. Be3 Bxe2 16. Ndxe2 e5 17. fxe5 Ng4 18. Rxd8+ Rxd8 19. Bxb6 axb6 20. Rd1 Rxd1+ 21. Nxd1 Nxe5 22. b3 {Bito,L (2000)-Marci,B (2091) ICCF 2011 1/2}) 11. Qxd8 Rxd8 12. Ng5 e6 13. e4 h6 14. Nf3 Bf8 15. e5 Bc5+ 16. Kh1 Nd5 17. Nxd5 exd5 18. Bd3 Nb4 19. Bb1 d4 20. Be4 Be6 21. Bd2 Bd5 {Arnold,G (2306)-Geißler,W (2319) ICCF 2009 1/2 (36)}) 10... a6 11. Be2 Qc7 12. Bd2 e5 13. fxe5 Qxe5 14. Bf3 Nbd7 15. Na4 Ne4 16. Bb4 Re8 17. Qb3 a5 18. Be1 Ndc5 19. Nxc5 Nxc5 20. Qc4 Qxe3+ {Geus,A (2172)-Jónsson,D ICCF 2011 1/2 (47)}) (9. dxc5 Qxd1+ 10. Kxd1 Nbd7 11. e4 Ng4 12. Re1 Nf2+ 13. Kc2 Nxc5 14. Nd5 Kh8 15. Be3 Nfxe4 16. Nxe7 Bg4 17. Bxc5 Nxc5 18. Ne5 Be6 19. Rad1 Bxc4 20. Nxc4 Ne6 { Straka,J (2181)-Osipov,A (2079) ICCF 2013 1/2 (43)}) 9... e6 10. dxe6 Qxd1+ 11. Kxd1 Bxe6 12. Bxe6 fxe6 13. e4 Nh5 14. g3 e5 15. Nxe5 Bxe5 16. fxe5 Nc6 17. Be3 b6 18. Ke2 Nxe5 19. Raf1 Ng4 20. Rxf8+ {Burmeister,F (2216)-Staak,E (2228) ICCF 2020 1/2}) 9. Be2 Qc7 10. e4 Rd8 11. e5 Nd5 12. Nxd5 cxd5 13. O-O Nb8 14. Nh4 Qb6 15. Be3 Bd7 16. Qd2 e6 17. g4 Nc6 18. f5 Bf8 {Geus,A (2165)-Sutela,R (2327) ICCF 2010 1-0 (63)}) (7. Bd3 c5 (7... Bg4 8. h3 Bxf3 9. Qxf3 e6 10. Bd2 Nbd7 11. g4 Qe7 12. h4 h5 13. gxh5 Nxh5 14. O-O-O Rfc8 15. c5 b6 16. Rdg1 bxc5 17. dxc5 Nxc5 18. Bc2 Rab8 19. b3 {Grønbech,T (1951)-Woodhouse,S (1740) ICCF 2016 0-1 (31)}) 8. O-O cxd4 9. exd4 dxc4 10. Bxc4 Nc6 11. h3 a6 12. a4 Bf5 13. Be3 Rc8 14. Rc1 e6 15. Qe2 h5 16. Rfd1 Qe7 17. Ne5 Qb4 18. Nxc6 Rxc6 {Fister,B (2148)-Mergard,H (2196) ICCF 2017 0-1}) (7. Bd2 Nbd7 (7... Bf5 8. Qb3 Nbd7 9. cxd5 c5 10. Qxb7 Ne4 11. Nxe4 Bxe4 12. Ng5 Nf6 13. dxc5 Rb8 14. Qa6 Qxd5 15. Bc4 Qxc5 16. Rc1 Qf5 17. O-O Rxb2 {0-1 (17) Andreassen,E (2343)-Lorentzen,Ø (2440) ICCF 2005}) (7... c5 8. dxc5 Na6 9. cxd5 Nxc5 10. Bc4 e6 11. dxe6 Bxe6 12. Bxe6 Nxe6 13. O-O Qb6 14. Qb3 Qxb3 15. axb3 Nc5 16. b4 Nce4 17. Rfd1 Rfd8 18. Be1 a6 19. Ne5 {Fagerbekk,E-Vanttaja,I (2247) ICCF 2007 1/2 (43)}) 8. Qc2 dxc4 9. Bxc4 c5 10. Ne2 Nb6 11. Bb3 cxd4 12. Nexd4 Bd7 13. O-O Rc8 14. Qd1 Bg4 15. Rc1 Qd6 16. h3 Rxc1 17. Bxc1 Bd7 18. Ne5 Ne4 {Overturf,S (1730)-Lanzani,P (2227) ICCF 2020 0-1 (43)}) (7. Ne5 Nbd7 (7... Bf5 8. g4 Be6 9. Bd3 dxc4 10. Bxc4 Bxc4 11. Nxc4 c5 12. d5 b5 13. Nxb5 Nxd5 14. e4 Nb4 15. a3 Nd3+ 16. Ke2 Nxc1+ 17. Rxc1 Qc8 18. Qd5 Qxg4+ 19. Ke3 {Llewellyn,A (1889)-Moser,M (1840) ICCF 2012 0-1}) 8. Be2 c5 (8... dxc4 9. Nxc4 c5 10. O-O Nb6 11. dxc5 Nxc4 12. Bxc4 Bg4 13. Qa4 Qc7 14. h3 Bd7 15. Qa3 Rfc8 16. b3 {1/2 (16) Fagerbekk,E-Aho, J (2397) ICCF 2007}) 9. cxd5 cxd4 10. Qxd4 Nxe5 11. fxe5 Nd7 12. O-O Bxe5 13. Qh4 Nf6 14. e4 Qb6+ 15. Kh1 Bd7 16. h3 Rac8 17. Rf3 Qb4 18. Bd3 Nh5 {Krüger,J (2171)-Cendrowski,C (2140) ICCF 2012 0-1 (28)}) 7... e6 (7... Qb6 8. Qxb6 axb6 9. Bd2 (9. cxd5 cxd5 10. Bd3 (10. Bd2 Bf5 11. Bb5 Nc6 12. Ne5 Na7 13. Be2 Nc6 ( 13... h5 14. h3 Nc6 15. g4 Be6 16. Bf3 Rfd8 {Deneuville,C (2203)-Lucas,K (1787) ICCF 2010 1-0 (46)}) 14. g4 Be6 15. Bf3 Rfd8 16. h3 Ne4 17. Nxe4 dxe4 18. Bxe4 Bxe5 19. fxe5 Rxa2 20. Rxa2 Bxa2 21. Bc3 b5 {Roynet,S (2058)-Smyth,S (1983) ICCF 2017 1/2 (55)}) 10... Nc6 11. Bd2 Nb4 12. Bb1 Bf5 13. Bxf5 gxf5 14. O-O e6 15. a3 Nc6 16. Rac1 Rfc8 17. Rc2 Na5 18. Rf2 Ne4 19. Re2 Nb3 20. Be1 Rc6 { Anderson,C-Bougher,J ICCF 2019 0-1 (42)}) 9... dxc4 10. Bxc4 Bf5 11. O-O b5 12. Bb3 Nbd7 13. Ne5 Nb6 14. h3 h5 15. Rfe1 e6 16. Bc1 b4 17. Nb1 Be4 18. Nd2 Rfc8 19. g4 {Arnold,G (2422)-Burne,N (2365) ICCF 2006 0-1 (70)}) (7... dxc4 8. Bxc4 b5 (8... Nbd7 9. Ne5 Nxe5 10. fxe5 b5 11. Bd3 Be6 12. Qc2 Nd7 13. O-O Rc8 14. b4 a5 15. a3 a4 16. Bb2 Bb3 17. Qe2 f6 18. exf6 exf6 19. e4 Nb6 20. Nd1 { Arnold,G (2306)-Poljak,D (2368) ICCF 2009 0-1 (50)}) 9. Bd3 (9. Be2 Be6 (9... Bg4 10. O-O Qd6 11. Nd2 Bxe2 12. Nxe2 a5 13. e4 Qd7 14. a4 Na6 15. e5 Nd5 16. Ne4 Nab4 17. f5 gxf5 18. Nc5 Qc8 19. Qg3 Kh8 20. Ra3 Nc2 21. Rd3 {Arnold,G (2419)-Hrdý,T ICCF 2007 1-0 (32)}) 10. Qc2 b4 11. Na4 Bf5 12. Qb3 Qd6 13. a3 Nbd7 14. axb4 Rab8 15. Ne5 Rxb4 16. Qa3 Bc2 17. Nc3 c5 18. dxc5 Qxc5 19. Qxa7 Qd6 20. Ra6 Rb6 {Arnold,G (2428)-Cimicki,D (2312) ICCF 2006 1/2 (90)}) 9... a6 (9... Be6 10. Qd1 Nbd7 11. e4 b4 12. f5 Bxf5 13. exf5 bxc3 14. bxc3 Qa5 15. Qc2 c5 16. fxg6 hxg6 17. Bd2 cxd4 18. cxd4 Qb6 19. Rc1 Qe6+ 20. Be2 Rac8 21. Qb3 { Straka,J (2181)-Borodin,S ICCF 2013 0-1 (100)}) 10. a4 Be6 11. Qc2 b4 12. Ne4 Nxe4 13. Bxe4 f5 14. Bd3 Qd6 15. h4 Nd7 16. h5 c5 17. hxg6 hxg6 18. Qe2 Bd5 19. Ne5 {Arnold,G (2406)-Lumley,B (2414) ICCF 2005 0-1 (42)}) (7... b6 8. Bd2 e6 9. Rd1 c5 10. dxc5 bxc5 11. Bc1 Nc6 12. cxd5 exd5 13. Nxd5 Be6 14. Nxf6+ Qxf6 15. Qa4 Nb4 16. e4 Nxa2 17. e5 Qf5 18. Be3 Nb4 19. Kf2 {Arnold,G (2390)-Goebert,F (2392) ICCF 2008 1/2 (38)}) (7... a5 8. cxd5 cxd5 9. Bd3 e6 10. O-O Nc6 11. Bd2 Bd7 12. Ne5 Nxe5 13. fxe5 Ng4 14. Rac1 Bc6 15. Bb5 Qb6 16. h3 Nh6 17. g4 Rfc8 18. Bxc6 Qxb3 19. axb3 {Hanegby,A (2074)-Horie,T (1820) ICCF 2014 1-0 (27)}) 8. Bd3 (8. Bd2 c5 9. dxc5 Na6 (9... Nbd7 10. Qa3 Ne4 11. Nxe4 dxe4 12. Ng5 b6 13. Bc3 Nxc5 14. Bxg7 Kxg7 15. Rd1 Qe7 16. Nxe4 Bb7 17. Nxc5 bxc5 18. Qc3+ f6 19. Rd2 Rfd8 20. Bd3 Rd6 21. Rf1 {Arnold,G (2304)-Acosta Mira,J ICCF 2009 1-0 (40)} ) 10. Qa3 Ne4 11. Nxe4 dxe4 12. Nd4 e5 (12... Qe7 13. c6 Qxa3 14. bxa3 bxc6 15. Rd1 Bb7 16. Be2 Rab8 17. O-O Rfe8 18. Nb3 c5 19. Ba5 Bc6 20. Rd2 Bf6 21. g4 h6 22. Bd1 Be7 23. Kg2 f5 24. h4 {Arnold,G (2306)-Salati,P (2439) ICCF 2009 1-0 (60)}) 13. fxe5 Bxe5 (13... Bg4 14. Be2 Bxe5 15. c6 Qh4+ 16. Kf1 Bxe2+ 17. Kxe2 Rad8 18. cxb7 Qg5 19. Rag1 Qg4+ 20. Ke1 Bxd4 21. exd4 Rxd4 22. Qxa6 e3 23. Bxe3 Qe4 24. Kf2 Qf5+ 25. Ke2 {Roynet,S (2058)-Flory,D ICCF 2017 0-1 (69)}) 14. O-O-O Bg4 15. Re1 Qe7 16. h3 Bd7 17. b4 Nc7 18. Bc3 Rfc8 19. Rd1 Rd8 {Arnold,G (2390)-Reinhart,K (2512) ICCF 2008 1/2 (26)}) (8. Be2 c5 9. O-O cxd4 10. Nxd4 Nc6 11. Rd1 Qe7 12. Nxc6 bxc6 13. Qa4 Bb7 14. b3 Rfe8 15. Ba3 Qc7 16. Rac1 Qb6 17. c5 Qc7 18. Rf1 e5 19. f5 Rad8 {Straka,J (2181)-Sirotkin,V (2140) ICCF 2013 0-1 (36)}) 8... c5 (8... Nbd7 9. O-O c5 10. cxd5 exd5 11. Be2 c4 12. Qd1 Nb6 13. Ne5 Ne8 14. b3 f6 15. Nf3 Nd6 16. a4 a5 17. Ba3 Re8 18. Bxd6 Qxd6 19. bxc4 Nxc4 20. Bxc4 {Arnold,G (2428)-Aberlenc,T ICCF 2006 1-0 (55)}) (8... b6 9. O-O Bb7 10. Rd1 Nbd7 11. Qc2 c5 12. b3 a6 13. Ne5 Rc8 14. a4 Qc7 15. Qe2 Rfd8 16. a5 bxa5 17. Na4 cxd4 18. exd4 Nb8 19. Bb2 Nc6 20. c5 {Arnold,G (2428)-Köntges, M (2362) ICCF 2006 1/2 (32)}) 9. cxd5 cxd4 10. exd4 Nxd5 11. Nxd5 Qxd5 12. Qxd5 exd5 13. Be3 Nc6 14. Rc1 Be6 {Arnold,G (2422)-Fourie,M (2193) ICCF 2006 1/2 (34)} (14... Re8 15. Ke2 Nxd4+ 16. Kf2 Nxf3 17. Kxf3 Bxb2 18. Rc7 d4 19. Bd2 Be6 20. Kf2 Bd5 21. Rb1 Ba3 22. Bb4 Re3 23. Bc4 Bxc4 24. Rxc4 Rd8 25. Rc7 Rde8 26. Bxa3 {Arnold,G (2428)-Vertongen,W (2379) ICCF 2006 1/2 (41)}) (14... Bg4 15. Ne5 Nxe5 16. fxe5 f6 17. h3 Bd7 18. exf6 Rxf6 19. Kd2 Re8 20. Rhf1 Rfe6 21. Rce1 Bf8 22. a3 Rb6 23. Rb1 a5 24. g4 Rb3 25. Rf3 Ba4 26. Bc2 {Arnold,G (2419) -Verenev,Y ICCF 2007 0-1 (48)})) (3. g3 Bg7 (3... Nc6 4. Bg2 Bg7 5. O-O Nf6 ( 5... e6 6. c3 Nge7 7. d4 Bd7 8. Qd3 O-O 9. Nbd2 a6 10. b3 Nf5 11. Ba3 Re8 12. Rad1 a5 13. e4 dxe4 14. Nxe4 a4 15. b4 Nce7 16. b5 c6 17. g4 {Reis,J-Strobehn, A ICCF 2009 1-0}) 6. d3 (6. d4 Bf5 7. Ne5 O-O 8. Nc3 a6 9. e3 Ne4 10. Nxe4 Bxe4 11. Nxc6 bxc6 12. Rb1 Bxg2 13. Kxg2 a5 14. b3 a4 15. b4 Qc8 16. Qd3 Rb8 17. Bd2 Rd8 {Mengelkamp,B-Trs,J (2138) ICCF 2018 0-1}) 6... O-O 7. Na3 (7. c3 b6 (7... Re8 8. Na3 (8. Ne5 Nxe5 9. fxe5 Ng4 10. d4 f6 11. Qb3 fxe5 12. Qxd5+ Qxd5 13. Bxd5+ Kh8 14. dxe5 Nxe5 {1/2 (14) Arnold,G (2236)-Schaub,J ICCF 2017} (14... a5 15. a4 Rd8 16. Be4 Bxe5 17. Nd2 c6 18. Nc4 Bc7 19. Bd3 Kg7 20. h3 Nf6 21. Kg2 Nd5 22. Rf3 Be6 23. Nd2 {Moujan,P (2229)-Massy,G (2202) ICCF 2020})) 8... Bg4 9. Qb3 Na5 10. Qc2 Qd6 11. b4 Nc6 12. e4 e5 13. exd5 Nxd5 14. Nc4 Qd8 15. Nfxe5 Nxe5 16. fxe5 Bxe5 17. Nxe5 Rxe5 18. Qb3 Be2 19. Bb2 {Hammerschmidt,V (1896) -Domaraczenko,K (1847) ICCF 2012 1-0 (67)}) (7... Qd6 8. Qc2 (8. Na3 e5 (8... a5 9. Kh1 Bg4 10. Nb5 Qd7 11. a4 Rfd8 12. Be3 Rac8 13. Qd2 Re8 14. Nbd4 e5 15. Nxc6 exf4 16. Bd4 bxc6 17. Qxf4 Nh5 18. Qd2 Bxf3 19. Bxf3 Bxd4 20. cxd4 { Bowen,F (1974)-Abolins-Abols,D (2090) ICCF 2017 1/2 (41)}) (8... Re8 9. Nb5 Qc5+ 10. Nbd4 Qb6 (10... Ng4 11. e3 (11. Qa4 Bd7 12. Qb5 Qd6 13. Nxc6 Bxc6 14. Qb3 a5 15. a4 Rab8 16. h3 Nf6 17. g4 Nd7 18. Rf2 Nc5 19. Qc2 b5 20. axb5 Rxb5 21. Nd2 a4 22. d4 Nb3 23. Nxb3 Rxb3 24. Bf3 Reb8 25. h4 Bd7 26. e3 c5 27. Qd3 Bc6 28. Bd1 R3b7 29. Rh2 Bb5 30. Qd2 Qc6 31. Bc2 Qc8 32. Rg2 Ra8 33. h5 Ra6 34. Rg3 Rc7 35. Kg2 (35. Kh2 e6 36. Rh3 Bf8 37. Qe1 Rb7 {1/2 (37) Vrana,L (2205) -Arounopoulos,S (2319) ICCF 2018}) 35... Rcc6 36. Kh2 e6 37. Rh3 Rc7 38. Rg3 Raa7 39. Rh3 Ra8 40. Rg3 Bf8 41. Kh1 Raa7 42. g5 Ra8 43. Kg2 Rca7 44. Rf3 Bc4 45. Kg3 Qc7 46. Qe1 Bd6 47. Rf2 Bb3 48. Bd3 Re8 49. Kg2 Rb8 50. Qh1 Qc8 51. Qh2 cxd4 52. exd4 a3 53. hxg6 fxg6 54. bxa3 Qxc3 55. Qh3 Re7 56. Bb2 Qc6 57. Rh1 Qe8 58. Bc1 Ba4 59. Bd2 Rb3 {1/2 (59) Zhdanenia,K (2305)-Vrana,L (2205) ICCF 2018 Bird's Opening with-1...d5}) 11... e5 12. Nxc6 Nxe3 13. b4 Qb6 14. Bxe3 Qxe3+ 15. Kh1 bxc6 16. Re1 Qb6 17. Nxe5 a5 18. a3 {1/2 (18) Dam,J (2028) -Rusznák,Z (1934) ICCF 2019}) 11. e3 Bg4 12. Qb3 Nxd4 13. exd4 Qxb3 14. axb3 Bf5 15. Rd1 a5 16. h3 h5 17. Be3 Ra6 18. Ra2 c6 19. Nh4 Rea8 20. Nxf5 {Ellis,J (2218)-Chatterjee,A (2227) ICCF 2019 1/2}) (8... a6 9. Nc2 Bd7 10. Qd2 b5 11. Nfd4 Rfe8 12. Nxc6 Qxc6 13. Nb4 Qb7 14. e4 Qa7+ 15. Qf2 Qxf2+ 16. Rxf2 dxe4 17. dxe4 e5 18. Rf1 Be6 19. Nc6 exf4 20. Bxf4 {Prohl,F (1818)-Kozlov,A (2187) ICCF 2010 1/2 (43)}) 9. fxe5 Nxe5 10. d4 Ned7 11. Bf4 Qb6 12. Qb3 c6 13. Nd2 Re8 14. Rae1 Nh5 15. e4 Nxf4 16. Rxf4 Qxb3 17. Nxb3 Bf8 18. Nc2 dxe4 19. Rfxe4 Rxe4 { Arnold,G (2248)-Mondino,V (2233) ICCF 2018 1/2 (28)}) (8. d4 Na5 (8... Bf5 9. e3 Na5 (9... Rfd8 10. Qe2 Nb8 11. Nbd2 c5 12. Ne5 Qa6 13. Qxa6 Nxa6 14. b3 Ne4 15. g4 Nxd2 16. Bxd2 Be4 17. Rac1 Rac8 18. Rfd1 b5 19. c4 Bxg2 20. Kxg2 bxc4 21. bxc4 {Arnold,G (2256)-Matozo,P (2210) ICCF 2018 1/2 (40)}) (9... Nd8 10. Ne5 Be4 11. Bh3 c5 12. Nd2 Ne6 13. g4 Rfd8 14. g5 Ne8 15. Nxe4 dxe4 16. Qg4 Nf8 17. b3 cxd4 18. cxd4 f5 19. Qe2 Bxe5 20. dxe5 Qb6 21. Rf2 {Arnold,G (2301) -Vasselon,C (2255) ICCF 2020 (28)}) 10. b3 b6 11. Nbd2 c5 12. Ba3 Rac8 13. Rc1 Rfd8 14. Ne5 h5 15. Qe2 Qe6 16. Rfe1 Bh3 17. Bxh3 Qxh3 18. b4 cxb4 19. cxb4 Nb7 20. b5 {Arnold,G (2292)-Puzanov,V (2254) ICCF 2019 1/2}) 9. e3 Bg4 10. h3 Be6 11. b3 Ne4 12. Kh2 b6 13. Bb2 c5 14. Nbd2 Nxd2 15. Nxd2 cxd4 16. exd4 b5 17. Nf3 Rac8 18. Qe2 Rb8 19. Ne5 Nc6 {Liutaia,L (1904)-Kruk,S (1681) ICCF 2019 1-0 (33)}) (8. Qe1 Re8 (8... e5 9. fxe5 Nxe5 10. Nxe5 Qxe5 11. Bf4 Qh5 12. Nd2 Re8 13. Nf3 Bh3 14. Bxh3 Qxh3 15. Rf2 c6 16. Qf1 Qxf1+ 17. Raxf1 Ng4 18. Rg2 Ne3 19. Bxe3 Rxe3 20. Re1 {Perry,W-Nurmi,R (1784) ICCF 2016 1/2}) 9. Nbd2 e5 10. fxe5 Nxe5 11. Nxe5 Qxe5 12. e4 Qh5 13. Rf4 g5 14. Rf1 h6 15. a4 Bh3 16. Bxh3 Qxh3 17. a5 Re7 18. Ra4 Rae8 19. Qe2 c5 {Perry,D (2368)-Lynge,M (2398) ICCF 2005 0-1 (41)}) (8. Kh1 Bg4 (8... b6 9. Qe1 Bb7 10. Na3 a6 11. e4 dxe4 12. dxe4 e5 13. Nc4 Qe6 14. Nfxe5 Nxe5 15. Nxe5 Rfe8 16. Qe2 Nh5 17. Kg1 a5 18. Rf2 Rad8 19. Be3 f6 20. Nxg6 {Oren,I (2314)-Noble,M (2455) ICCF 2008 1/2 (25)}) 9. Na3 a6 10. Nc2 Rae8 11. b3 Rd8 12. a4 Rfe8 13. b4 Bxf3 14. Bxf3 e5 15. b5 e4 16. Ba3 Qe6 17. f5 Qc8 18. Bg2 Ne7 19. fxg6 hxg6 {Dovrinder,B (2397)-Das,A (2355) ICCF 2019 0-1 (36)}) (8. Nh4 e5 9. f5 e4 10. Bf4 Qc5+ 11. d4 Qb6 12. Qb3 Nh5 13. Be3 Qxb3 14. axb3 Bf6 15. Bh6 Rd8 16. fxg6 hxg6 17. Na3 Ne7 18. Be3 a6 19. Rf2 Bxh4 {Thau,O (1704)-Liutaia,L (1997) ICCF 2020 0-1 (27)}) (8. Nbd2 Ng4 9. Nb3 Re8 10. h3 Nf6 11. Qe1 e5 12. fxe5 Nxe5 13. Nxe5 Qxe5 14. g4 h6 15. Nd4 Bd7 16. Bf4 Qe7 17. Qg3 Rac8 18. b4 b6 19. b5 Qc5 {Jung,R-Ramsden,J (2067) ICCF 2013 1-0 (39)}) 8... e5 (8... Re8 9. Kh1 a6 10. a4 Bg4 11. Na3 Rad8 12. e4 dxe4 13. dxe4 Qd3 14. Qxd3 Rxd3 15. e5 Nd5 16. Nc4 Rd8 17. Ng5 e6 18. Ne4 Bf8 19. Nf2 Be2 20. Re1 {Rickert,W (2052)-Barr,E (2105) ICCF 2014 1-0 (60)}) (8... Bf5 9. Nh4 Bd7 10. e4 dxe4 11. dxe4 Rad8 12. e5 Qc5+ 13. Kh1 Nd5 14. Qe2 g5 15. Nf3 gxf4 16. gxf4 Bg4 17. b4 Qb6 18. a4 Nb8 19. Qe1 c5 20. Qg3 {Schmidt,T (2143) -Piqueras Jiménez,M (2074) ICCF 2017 1-0 (47)}) 9. e4 dxe4 10. dxe4 exf4 11. Bxf4 Qe7 12. Nbd2 Ng4 13. Rae1 Rd8 14. Kh1 h6 15. e5 Bf5 16. Qb3 Bd3 17. e6 Bxf1 18. Bxf1 f6 19. Qxb7 {Cook,D (2212)-Gillam,S (2275) ICCF 2015 1-0 (49)}) ( 7... a5 8. a4 (8. Na3 a4 9. Nc2 Qd6 10. Qe1 b6 11. h3 Nh5 12. Ncd4 Bb7 13. Nxc6 Bxc6 14. Nd4 Bb7 15. g4 Nf6 16. f5 c5 17. Nc2 h6 18. Bf4 e5 19. Bh2 Qe7 { Zhdanenia,K (2306)-Zeghachov,D (2299) ICCF 2019 1/2 (29)}) 8... b6 (8... Qd6 9. Na3 e5 10. fxe5 Nxe5 11. Bf4 Qb6+ 12. d4 Nxf3+ 13. Bxf3 Bh3 14. Rf2 Ne4 15. Bxe4 dxe4 16. Nb5 Rfc8 17. Qd2 Bd7 18. Qe3 Bxb5 19. axb5 Qxb5 20. Qxe4 { Ainsborough,G (1623)-Colotti,C ICCF 2020 0-1 (33)}) 9. Na3 Bb7 10. Qc2 e6 11. e4 dxe4 12. dxe4 e5 13. Nc4 exf4 14. gxf4 Qe7 15. e5 Qc5+ 16. Ne3 Nd5 17. Nd4 Nxd4 18. cxd4 Qxd4 19. Bxd5 {Nordin,N (1932)-Johansson,E (1747) ICCF 2020 1/2 (44)}) 8. a4 (8. Nbd2 Bb7 9. Qe1 e6 10. e4 dxe4 11. Nxe4 Nd5 12. Bd2 Qe7 13. Qe2 Rad8 14. d4 Qd7 15. Rae1 Qc8 16. b4 a6 17. a4 Rfe8 18. h3 h6 19. Kh2 Kh7 { Norman,N (2142)-Cox,R (1784) ICCF 2015 1-0}) (8. Re1 Bb7 9. b4 a6 10. e3 Re8 11. d4 Ne4 12. Bb2 a5 13. b5 Na7 14. a4 c6 15. bxc6 Nxc6 16. Nbd2 Nxd2 17. Qxd2 Ba6 18. Rab1 Rb8 19. Ba3 Qc7 {Arnold,G (2267)-David-Bordier,C (2334) ICCF 2018 0-1 (26)}) (8. h3 Bb7 9. Qe1 Re8 10. d4 e6 11. Be3 Ne4 12. Nbd2 Ne7 13. g4 f6 14. Bf2 Rc8 15. Nxe4 dxe4 16. Nd2 f5 17. Nc4 c5 18. dxc5 bxc5 19. Rd1 Nd5 { Schmidt,T (2136)-Elias,H (2125) ICCF 2017 0-1 (38)}) (8. Ne5 Bb7 9. d4 e6 10. a4 Ne7 11. a5 Rc8 12. g4 c5 13. axb6 axb6 14. Be3 h5 15. h3 hxg4 16. hxg4 Nc6 17. Bf3 Ne4 18. Kg2 Ne7 19. dxc5 Nxc5 {Velker,W (2275)-Kucherov,D (2274) ICCF 2018 1/2 (34)}) 8... Bb7 9. Na3 (9. Qc2 e6 (9... Re8 10. b4 Nd7 11. Ra2 e5 12. f5 gxf5 13. Nh4 Ne7 14. Nxf5 Nxf5 15. Rxf5 Qe7 16. e4 dxe4 17. Bxe4 Qe6 18. Nd2 Bxe4 19. dxe4 c5 20. b5 Nf6 21. c4 {Arnold,G (2302)-Piña Rosas,M (2306) ICCF 2020 1/2 (31)}) 10. b4 (10. Nbd2 a5 11. Re1 Re8 12. e4 dxe4 13. Nxe4 Rb8 14. Be3 Ng4 15. Bd2 Ne7 16. h3 Nf6 17. g4 Rf8 18. Rad1 c5 19. Nxf6+ Bxf6 20. Bc1 Qd6 21. Ne5 Nd5 {Arnold,G (2263)-Hassim,U (2317) ICCF 2017 1/2 (40)}) 10... Ne7 11. Re1 c5 12. bxc5 bxc5 13. e4 Nd7 14. e5 Rb8 15. Nbd2 Nf5 16. Nf1 Qc7 17. Ne3 Ne7 18. Bd2 {Arnold,G (2308)-Slyusar,V (2308) ICCF 2019 1/2 (38)}) 9... e6 10. Qc2 Qe7 11. b4 a6 12. b5 axb5 13. axb5 Na7 14. Qb3 Nc8 15. Bd2 Nd6 16. Nc2 Rfc8 17. Ncd4 Nd7 18. Qb4 Qe8 {Aycock,A (1848)-Prigodin,R (1967) ICCF 2016 0-1}) (7. Nc3 Bg4 8. Ne5 Nxe5 9. fxe5 Nd7 10. Nxd5 Nxe5 11. c3 c6 12. Ne3 Be6 13. d4 Nc4 14. Nxc4 Bxc4 15. b3 Be6 16. e4 {1-0 (16) Vaquera García,A-Handrick,V ICCF 2015 }) (7. e3 Re8 8. d4 Bf5 9. Ne5 Be4 10. b3 e6 11. Bb2 Bxg2 12. Kxg2 Ne7 13. Nd2 c5 14. dxc5 Nd7 15. Bd4 Nxe5 16. fxe5 Nc6 17. Nf3 Qc7 18. Qc1 Nxe5 {Brotherton, T (2211)-Vasselon,C (2240) ICCF 2020 1/2 (31)}) 7... Qd6 8. c3 (8. c4 Re8 9. cxd5 Qc5+ 10. e3 Nxd5 11. d4 Qb4 12. Ne5 Nxe5 13. fxe5 c6 14. Rf2 f5 15. Qd3 Bh6 16. Nc2 Qb6 17. e4 Bxc1 18. exd5 Bg5 {Vajas,S (1944)-Guineret,H ICCF 2019 1-0 (42)}) (8. Kh1 Rb8 9. c4 Bg4 10. Bd2 e6 11. Rb1 Rfd8 12. b4 Qe7 13. cxd5 Nxd5 14. Nc2 a6 15. Qe1 Qd7 16. Ne5 Nxe5 17. fxe5 Bxe5 18. d4 Nb6 19. Bg5 f6 { Noiré,E (2214)-Cipressi,N (2194) ICCF 2007 1-0 (43)}) 8... a6 9. Nc2 a5 (9... Re8 10. b3 Qc5+ 11. d4 Qa5 12. c4 dxc4 13. bxc4 Bf5 14. Bd2 Qb6 15. Rb1 Qa7 16. e3 a5 17. Ne5 Be4 18. Bf3 a4 19. g4 Qa6 20. g5 Bxf3 21. Qxf3 {Beyer Lecaros,A (2020)-Caballón Castellares,E (1709) ICCF 2016 1-0 (48)}) 10. b3 b5 11. Bb2 ( 11. Qd2 b4 12. Bb2 Ng4 13. Rfc1 a4 14. bxa4 bxc3 15. Bxc3 Rxa4 16. Bxg7 Kxg7 17. Qc3+ Kg8 18. h3 Nf6 19. Ne5 Bd7 20. Nxc6 Bxc6 21. Ne3 Ra6 22. Qe5 Rc8 { Arnold,G (2215)-Boege,H (2176) ICCF 2017 1/2 (37)}) 11... Bd7 12. e3 Ng4 13. h3 Nf6 14. Qc1 Rab8 15. c4 {Arnold,G (2261)-Boege,H (2179) ICCF 2016 0-1 (58)}) ( 3... c6 4. Bg2 Qb6 5. a4 a5 6. d4 Nf6 7. O-O Bg7 8. c4 O-O 9. c5 Qc7 10. Nc3 Na6 11. Re1 Nb4 12. Ne5 Bf5 13. e4 dxe4 14. Nxe4 Nxe4 15. Bxe4 {Ainsborough,G (1596)-Keiper,A ICCF 2020 1/2 (49)}) 4. Bg2 c5 (4... Nh6 5. O-O (5. d3 Nc6 ( 5... d4 6. c3 (6. O-O c5 7. c4 O-O 8. Nbd2 Nf5 9. Ne4 Nd7 10. Rb1 Qc7 11. b4 b6 12. bxc5 Nxc5 13. Nxc5 bxc5 14. Ne5 Rb8 15. Rxb8 Qxb8 16. Nc6 Qc7 17. Qa4 a6 { Masset,J (1909)-Garau,B ICCF 2012 1/2 (50)}) 6... Nc6 (6... c5 7. e4 dxe3 8. Bxe3 Qc7 9. O-O O-O 10. Na3 Ng4 (10... Nd7 11. Nc2 Rd8 12. Qe2 Nf6 13. Rad1 Be6 14. c4 Rd6 15. f5 Nxf5 16. Bf4 Rad8 17. Bxd6 Rxd6 18. Ng5 Bc8 19. Ne4 Nxe4 20. dxe4 Nd4 21. Nxd4 Bxd4+ 22. Kh1 {Chipkin,L (2104)-Hauser,D (2310) ICCF 2015 0-1 (50)}) 11. Qe2 Nxe3 12. Qxe3 Rd8 13. Nc4 Bf5 14. Rad1 Bf6 15. Nce5 Nd7 16. d4 e6 17. Nxd7 Qxd7 18. Qe2 {Barr,O-Andersson,S ICCF 2012 1/2 (75)}) (6... O-O 7. cxd4 Bg4 8. Nc3 c6 9. e3 Nf5 10. O-O {1-0 (10) Jean,L (1902)-Forget,C (1710) ICCF 2019}) 7. Bd2 O-O 8. Na3 Nf5 9. O-O e5 10. fxe5 Nxe5 11. Nxe5 Bxe5 12. Nc4 Bg7 13. cxd4 Qxd4+ 14. Kh1 Be6 15. Bc3 Qc5 16. Bxg7 Kxg7 17. Rc1 {Harding,T (2368)-Barnsley,T (2490) ICCF 2011 0-1 (31)}) (5... b6 6. c4 (6. O-O Bb7 7. c3 O-O 8. Na3 Nd7 9. Re1 Nc5 10. Be3 Ne6 11. Qc2 c5 12. Rad1 Qc7 13. Bc1 d4 14. e4 dxe3 15. Nc4 Nf5 16. Nxe3 Nxe3 17. Bxe3 Rad8 {Villeneuve,R (2143)-Landers Rodriguez,J (2136) ICCF 2019 1/2 (66)}) 6... Bb7 (6... dxc4 7. Nfd2 c6 8. Nxc4 Nf5 9. Nc3 Bb7 10. O-O O-O 11. g4 Nd6 12. Nxd6 exd6 13. f5 d5 14. Bf4 g5 15. Bg3 Nd7 16. d4 Re8 17. Qd2 h6 18. Rad1 {Arnold,G (2278)-Yáñez García,J (2260) ICCF 2018 1/2 (76)}) 7. cxd5 Qxd5 8. Nh4 Qa5+ 9. b4 Qa6 10. b5 Bxg2 11. bxa6 Bxh1 12. Kd2 Bc6 13. Nc3 Nxa6 14. Bb2 Nc5 15. Qc1 O-O 16. Nd1 Rad8 17. Bxg7 { Cleto Jr.,D (2278)-Baúles,J ICCF 2017 1/2 (31)}) (5... c6 6. Nc3 (6. c3 Nd7 7. Be3 O-O 8. Qd2 Nf5 9. Bf2 e5 10. Na3 exf4 11. gxf4 Nf6 12. O-O-O Ng4 13. Bg1 Re8 14. Nc2 Bh6 15. Bh3 Nf6 16. Bg2 a5 17. Kb1 Qc7 {Pisani,C (2139)-Sachuk,A ICCF 2016 0-1 (49)}) (6. O-O Qb6+ 7. d4 Nf5 8. e3 h5 9. Rf2 Nd7 10. c4 O-O 11. cxd5 cxd5 12. Ne5 Nf6 13. Nc3 Be6 14. Na4 Qd6 15. Nc5 Bc8 16. Rc2 b6 17. Na4 e6 {Arnold,G (2267)-Bösenberg,E (2456) ICCF 2018 1/2 (53)}) 6... Na6 (6... d4 7. Ne4 Nf5 8. c3 O-O 9. Bd2 Nd7 10. cxd4 Nxd4 11. Bc3 Nf5 12. Qc1 Qb6 13. Bh3 Nf6 14. Nf2 Ne3 15. Bd4 Qa5+ 16. Bc3 Qb6 17. Bxc8 Raxc8 18. Bd4 {Arnold,G (2263) -Paul,J (2185) ICCF 2017 1/2}) 7. O-O O-O 8. e3 Bg4 9. e4 Qb6+ 10. Kh1 Rad8 11. Qe1 Qc5 12. Be3 d4 13. Bg1 Qb4 14. Ne2 Qxb2 15. Qd2 Qa3 16. Rab1 Bxf3 17. Bxf3 {Arnold,G (2181)-Garau,B (2299) ICCF 2014 0-1 (46)}) (5... O-O 6. h3 Nf5 7. g4 Nd6 8. Qd2 c5 9. Qe3 Qb6 10. Ne5 e6 11. c3 f6 12. Nf3 Nc6 13. Qf2 e5 14. fxe5 fxe5 15. Qg3 c4 16. Nfd2 Be6 17. dxc4 {Arnold,G (2251)-Fraczek,D (2251) ICCF 2012 0-1 (31)}) 6. c3 O-O 7. O-O d4 8. e3 (8. cxd4 Nxd4 9. Nxd4 Qxd4+ 10. e3 Qb6 11. Nc3 Rd8 12. d4 c6 13. Na4 Qc7 14. Bd2 Be6 15. Rc1 Bd5 16. Bxd5 Rxd5 17. Qe2 Rad8 18. Rc2 f5 19. b4 a6 {Barr,O-Karlsson,K (2001) ICCF 2012 1-0 (34)}) ( 8. h3 Re8 9. Kh2 e5 10. fxe5 dxc3 11. Nxc3 Nxe5 12. Nh4 c6 13. Ne4 Nf5 14. Bg5 Qd4 15. Nxf5 Bxf5 16. Rf4 Qxb2 17. Nf6+ Bxf6 18. Bxf6 Rab8 19. e4 Bd7 {Vajas,S (1944)-Malmström,J (1882) ICCF 2019 1-0 (39)}) 8... dxe3 9. Na3 Ng4 10. Qe2 e5 11. fxe5 Ncxe5 12. Nxe5 Nxe5 13. d4 Ng4 14. h3 Nf6 15. Bxe3 Nd5 16. Bd2 Be6 { Heß,H (2312)-Lukásová,A (2139) ICCF 2012 1/2 (36)}) (5. d4 O-O (5... Nf5 6. Nc3 c6 7. e3 Nd6 8. O-O Nd7 9. Ne5 Nf6 10. b3 h5 11. Bb2 Bg4 12. Qe1 Qc8 13. e4 Bh3 14. exd5 Bxg2 15. Kxg2 cxd5 16. Qe2 O-O 17. a4 {Snijders,J (2079)-Khudolii,S (2180) ICCF 2015 1/2 (45)}) 6. O-O Nd7 (6... c6 7. c3 Nd7 8. Ng5 Nf6 9. e4 Nxe4 10. Nxe4 dxe4 11. Bxe4 Qc7 12. Nd2 c5 13. d5 Bf5 14. Bf3 Bd3 15. Re1 Rad8 16. Nf1 c4 17. Qd2 b5 18. Ne3 {Poel,E (2316)-McKenzie,C (2296) ICCF 2013 0-1}) 7. Nc3 Nf6 8. Ne5 Nf5 9. e3 c6 10. b3 h5 11. Na4 Nd6 12. c4 Bf5 13. Bb2 Rc8 14. Rc1 Nfe4 15. Qe2 Re8 16. Bf3 e6 {Snijders,J (2079)-Ward,R (2147) ICCF 2015 1/2 (53)}) (5. Nc3 c5 6. d3 d4 7. Ne4 Nc6 8. O-O b6 9. c4 O-O 10. Ne5 Nxe5 11. fxe5 Rb8 12. Nf6+ Kh8 13. Qa4 Nf5 {Taner,H (2358)-Kural,A (2354) ICCF 2014}) (5. c3 c6 6. O-O Nd7 7. d3 Qb6+ 8. e3 O-O 9. Qe2 Nf5 10. d4 Nf6 11. Nbd2 Nd6 12. Ne5 h5 13. h3 Nf5 14. Qf2 Be6 15. b3 Qa6 {0-1 (15) Krstic,L (2003)-Maître,F ICCF 2008}) 5... O-O (5... Nf5 6. Nc3 h5 7. d3 d4 8. Ne4 Nc6 9. c3 h4 10. Qb3 dxc3 11. bxc3 Ncd4 12. cxd4 Nxd4 13. Nxd4 Bxd4+ 14. e3 Bxa1 15. Ng5 O-O 16. d4 hxg3 17. hxg3 {Veen,K (2176)-LePage,C (2161) ICCF 2007 1/2 (26)}) 6. d3 (6. Nc3 c5 ( 6... c6 7. Qe1 Na6 8. d4 Nb4 9. Qd1 Bf5 10. Ne1 c5 11. dxc5 Qa5 12. Kh1 Rad8 13. Nd3 Nxd3 14. cxd3 Qxc5 15. h3 Be6 16. g4 f5 17. g5 Nf7 18. Qb3 {Bobel,P (2217)-Opitz,P (2091) ICCF 2011 1-0 (41)}) 7. d3 Nc6 8. e4 (8. a3 d4 9. Ne4 b6 10. c4 a5 11. b3 Bb7 12. Rb1 Nf5 13. g4 Nh6 14. h3 f5 15. Ng3 e6 16. Ng5 Re8 17. gxf5 exf5 18. b4 axb4 19. axb4 cxb4 {Engelen,J (2339)-Grayland,S (2367) ICCF 2015 1/2 (40)}) 8... d4 9. Nb5 a6 10. Na3 b5 11. h3 Qb6 12. g4 Kh8 13. g5 Ng8 14. Qd2 f6 15. Qf2 fxg5 16. Nxg5 e5 17. Qg3 Ra7 {Moser,M (1913)-Dmitrieva, G (2230) ICCF 2013 0-1}) (6. c3) (6. e3 c6 7. Nc3 Nf5 8. d3 Nd6 9. a4 a5 10. Qe2 Qb6 11. Kh1 Na6 12. e4 dxe4 13. Nxe4 Qc7 14. Re1 Bg4 15. Qf2 Nb4 16. Ne5 Bf5 17. Nc3 f6 {Nordin,N (2004)-Tödter,H (2172) ICCF 2017 0-1 (52)}) 6... d4 ( 6... c6 7. Nc3 (7. a4 Qb6+ 8. Kh1 a5 9. e4 dxe4 10. dxe4 Bxb2 11. Bxb2 Qxb2 12. Nbd2 Na6 13. Nc4 Qb4 14. Qe2 Be6 15. Ne3 Ng4 16. f5 Qxe4 17. Ra3 Bxf5 18. Nh4 Qe6 {Jensen,K (2184)-Gacnik,L (2166) ICCF 2020 1/2 (38)}) (7. c3 Qb6+ (7... Nd7 8. e4 (8. d4 Nf5 9. b3 b6 10. e3 e6 11. Re1 Bb7 12. Bb2 c5 13. Nbd2 a5 14. a4 Nf6 15. Ne5 Rc8 16. Rc1 cxd4 17. exd4 Ba6 18. Nb1 Ne8 19. Ba3 Ned6 {Sedlácek,T (2229)-Zinoviev,P (2147) ICCF 2017 1/2 (26)}) 8... dxe4 9. dxe4 Nc5 10. Qe2 ( 10. Qc2 Qd3 11. Qxd3 Nxd3 12. Na3 e5 13. Nxe5 Nxe5 14. fxe5 Ng4 15. Nc4 Nxe5 16. Nxe5 Bxe5 17. Bh6 Rd8 18. Bg5 Re8 19. Rad1 Bc7 20. a3 Bb6+ 21. Kh1 Be6 { Knöppel,B (2057)-Timofeev,A ICCF 2017 0-1 (84)}) 10... Qd3 {1/2 (10) Grapenfalk,H-Zeghachov,D (2174) ICCF 2018}) 8. Kh1 Nd7 9. Na3 Ng4 10. Qe1 e5 11. e4 exf4 12. exd5 Nc5 13. Qe2 Bf5 14. d4 Nd3 15. Nc4 Nxc1 16. Raxc1 Qa6 17. Rce1 cxd5 18. Nce5 Qxe2 {Ainsborough,G (1623)-Sherwood,R (2357) ICCF 2020 0-1 (48)}) 7... d4 (7... Qb6+ 8. Kh1 d4 9. Na4 (9. Nb1 Nf5 10. c3 c5 11. Qc2 Nc6 12. e4 dxe3 13. Na3 Qa6 14. Nc4 Be6 15. Nxe3 Rad8 16. Ng5 Bc8 17. Rd1 h6 18. Ne4 b6 19. Nxf5 Bxf5 20. Be3 Be6 {Veen,K-Rosso,P ICCF 2005 1/2 (53)}) 9... Qa5 10. c3 b5 11. Nc5 dxc3 12. d4 Nd7 13. Nb3 cxb2 14. Bxb2 Qc7 15. e4 a5 16. Rc1 Ng4 17. Qe1 Nb6 18. Nfd2 a4 19. Nc5 {Arnold,G (2267)-Wharrier,J (2416) ICCF 2018 1/2 (43)}) 8. Ne4 Nf5 9. c3 (9. Qe1 Na6 10. c4 Nc7 11. Rb1 a5 12. Qf2 a4 13. Bd2 Ne6 14. g4 Ne3 15. Bxe3 dxe3 16. Qxe3 Nd4 17. Ne5 Bxe5 18. fxe5 Bxg4 19. Ng3 Nc2 20. Qf2 Qd4 {Martín Molinero,R (2429)-Díaz Rubí,F (2229) ICCF 2018 1/2 (32)}) 9... Qb6 10. Kh1 c5 11. Bd2 Be6 12. Qc1 Bd5 13. Ne5 Bxe5 14. fxe5 Nd7 15. Bf4 Ng7 16. e3 Ne6 17. exd4 cxd4 18. Qd2 {Dreisch,J (2106)-Whitted,D (1981) ICCF 2016 0-1 (36)}) (6... b6 7. e4 dxe4 8. dxe4 Ba6 9. Re1 Qxd1 10. Rxd1 Nc6 11. h3 Rad8 12. Rd2 Rfe8 13. a4 Bb7 14. Na3 Nb4 15. e5 f6 16. Nd4 fxe5 17. Ne6 Rxd2 18. Bxd2 {Buker,M (2109)-Celsus,P ICCF 2019 1/2}) 7. c3 (7. e4 dxe3 8. Na3 c5 (8... Nf5 9. c3 c6 10. Qe2 Nd7 11. Nc4 Re8 12. Bxe3 Nxe3 13. Nxe3 e5 14. f5 g5 15. Rad1 h6 16. Nd2 Nf6 17. Ne4 Nd5 18. Ng4 h5 19. Nh6+ Bxh6 20. Qxh5 {Schmidt,T (2149)-de Breyne,V (2136) ICCF 2016 1-0 (25)}) 9. Nc4 Qc7 10. Bxe3 Nf5 (10... b6 11. Nfe5 Bb7 12. Bxb7 Qxb7 13. Qf3 Qxf3 14. Nxf3 Nc6 15. a4 Nf5 16. Kf2 Rfd8 17. Rfe1 Nd6 18. Nfe5 Nb4 19. Rac1 f6 20. Nxd6 exd6 21. Nf3 f5 22. b3 {Maltais,C (2245)-Dambrauskas,V (2465) ICCF 2019 1/2 (31)}) (10... b5 11. Nfe5 Bb7 12. Bxb7 Qxb7 13. Na5 Qc7 14. Nb3 c4 15. Nd4 Bxe5 16. fxe5 Qxe5 17. Bf2 Rd8 18. Qf3 Qd5 19. Qxd5 Rxd5 20. a4 Rd7 21. h3 cxd3 22. axb5 {Arnold, G (2224)-Sande,Ø (2226) ICCF 2014 1-0 (39)}) 11. Bf2 Nc6 12. a4 b6 13. a5 Be6 14. c3 Bd5 15. axb6 axb6 16. Qe2 b5 17. Ne3 Nxe3 18. Qxe3 c4 {Arnold,G (2224) -Gus'kov,V (2339) ICCF 2012 1/2}) (7. Nbd2 Nc6 (7... Nd7 8. e4 dxe3 9. Nc4 Nf5 10. Nxe3 Nxe3 11. Bxe3 Bxb2 12. Rb1 Bf6 13. Re1 Re8 14. Qd2 c6 15. Bd4 Nb6 16. Bf2 Be6 17. c4 Bc8 18. Rb3 Nd7 19. d4 {Kaminski,J (2004)-Buchmann,H (1927) ICCF 2015 1/2 (32)}) 8. Ne4 Nf5 9. c3 b6 10. cxd4 Ncxd4 11. Ne5 Bb7 12. e3 Ne6 13. Qe2 c5 14. Bd2 Qc7 15. Bc3 b5 16. Rac1 f6 17. Nf3 c4 18. g4 Nh6 {Gupta,A (2160)-Lahlum,H (2296) ICCF 2013 0-1 (28)}) (7. Na3 Nc6 8. Qe1 Nf5 9. c3 h5 10. Nc2 {1-0 (10) Malnar,A (2379)-Ehrbár,T (2306) ICCF 2016}) 7... c5 8. e4 (8. Qe1 Nc6 9. Na3 Rb8 10. Bd2 Nf5 11. Qf2 Be6 12. Ng5 Bd5 13. Bxd5 Qxd5 14. Qg2 Qxg2+ 15. Kxg2 b5 16. c4 b4 17. Nc2 Nd6 18. Ne1 e5 19. Nef3 h6 {Schmidt,T (2136) -Jenkinson,S (2234) ICCF 2017 1/2 (43)}) (8. h3 Nc6 9. e4 Kh8 10. cxd4 Nxd4 11. Nc3 b6 12. Be3 Ba6 13. Rf2 Nxf3+ 14. Rxf3 Bxd3 15. Rf2 Bxc3 16. bxc3 Bb5 17. Qb3 Bc6 18. f5 Ng8 19. fxg6 hxg6 {Lanzani,P (2227)-Overturf,S (1730) ICCF 2020 1/2 (34)}) 8... Nc6 9. h3 b6 (9... Qb6 10. Kh1 Bd7 11. g4 f6 12. Nbd2 Nf7 13. Nb3 a5 14. cxd4 cxd4 15. Nbd2 Qa6 16. Nb3 Qa7 17. Bd2 a4 18. Nc1 e5 19. a3 exf4 20. Bxf4 Nfe5 21. Ng1 {Spasov,V (2452)-Matheis,T (2232) ICCF 2005 0-1 (55)}) 10. c4 (10. g4 f6 (10... Kh8 11. c4 f6 12. e5 Qc7 13. Na3 a6 14. Qe2 fxe5 15. fxe5 Bb7 16. Bd2 e6 17. Rae1 Nf7 18. Bf4 Rab8 19. Nb1 b5 20. b3 Kg8 21. h4 Ba8 22. a3 {Zhdanenia,K (2300)-Maldonado Pacheco,J (2356) ICCF 2018 1/2 (47)}) 11. cxd4 Nxd4 12. Be3 Nf7 13. Nxd4 cxd4 14. Bd2 e5 15. Qb3 Bh6 16. f5 Bxd2 17. Nxd2 Kg7 18. Rac1 Bd7 19. Qa3 Bb5 20. Nc4 Qd7 21. b3 Rac8 {Pheby,I (2327)-Coyne,D (2248) ICCF 2014 0-1 (42)}) 10... f6 11. Na3 Nf7 12. Nc2 a5 13. g4 Bd7 14. a3 a4 15. f5 e5 16. fxg6 {Picken,R (1744)-Lockett,J (1830) ICCF 2020 0-1 (36)}) ( 4... c6 5. d3 (5. Nc3 Nf6 (5... d4 6. Ne4 Nf6 7. Nf2 c5 8. O-O Nc6 9. e4 dxe3 10. dxe3 O-O 11. Qe2 Ng4 12. Ne4 Qb6 13. c3 Rd8 14. h3 Nf6 15. Nxf6+ exf6 16. e4 Qc7 17. Be3 {Schmidt,T (2136)-Rivas Romero,G (2171) ICCF 2017 1/2 (40)}) ( 5... Qa5 6. O-O h5 7. d3 Bg4 8. Qe1 Qc5+ 9. e3 Bxf3 10. Bxf3 Nh6 11. Bd2 Nf5 12. b4 Qd6 13. Rb1 Nd7 14. a4 O-O 15. Ne2 e5 16. e4 dxe4 17. dxe4 {Kuiper,J (2500)-Mészáros,A ICCF 2012 1/2 (32)}) (5... Qb6 6. e3 Nd7 7. e4 dxe4 8. Nxe4 Ngf6 9. Nf2 O-O 10. d4 Nd5 11. O-O N7f6 12. h3 Bf5 13. Kh2 Rad8 14. c4 Nb4 15. g4 Be4 16. Nxe4 Nxe4 17. a3 {Powe,M-Prickett,D (1805) ICCF 2020 0-1 (35)}) 6. e3 (6. d3 O-O 7. O-O Nbd7 (7... d4 8. Ne4 Nxe4 (8... Nd5 9. Bd2 Qb6 10. Qc1 ( 10. Rb1 Nd7 11. Qc1 N7f6 12. Nxf6+ exf6 13. Kh1 Re8 14. Re1 Ne3 15. Bxe3 dxe3 16. c4 c5 17. a3 a5 18. Rd1 Bd7 19. b3 Qc7 20. Ne1 {Cabral,R (1917)-Pintor,M (2047) ICCF 2005 1/2 (57)}) 10... Bg4 (10... Nd7 11. Kh1 Ne3 12. Bxe3 dxe3 13. c3 Nf6 14. Ne5 Nxe4 15. Bxe4 Bxe5 16. fxe5 Qb5 (16... f6 17. d4 Bh3 18. Bg2 Bxg2+ {1/2 (18) Arnold,G (2254)-Dreisch,J (2106) ICCF 2016}) 17. d4 (17. Qxe3 Qxe5 18. d4 Qc7 19. c4 e5 20. d5 f5 21. Bg2 e4 22. Rad1 cxd5 23. cxd5 Qd6 24. g4 f4 25. Qxe4 Bxg4 26. Bf3 Bxf3+ 27. exf3 Rae8 28. Qd4 Rf5 {Arnold,G (2248) -Silva Filho,A (2223) ICCF 2018 1/2 (28)}) 17... Qxe2 18. Bf3 Qd2 19. Qxd2 exd2 20. Rfd1 {Arnold,G (2261)-Rau,J (2279) ICCF 2016 1/2 (32)}) 11. Kh1 Nd7 12. c4 Ne3 13. c5 Qb5 14. Bxe3 dxe3 {1/2 (14) Destruels Moreno,F (2304)-Stubbs,M (2039) ICCF 2012}) 9. dxe4 c5 10. e3 Qb6 (10... Nc6 11. e5 Qb6 (11... Bf5 12. exd4 cxd4 13. Ne1 Rc8 (13... f6 14. exf6 exf6 15. Bd2 Be6 16. Nd3 Bd5 17. Re1 Rc8 18. Qe2 Rf7 {Arnold,G (2261)-Arbis,F (2137) ICCF 2016 1/2 (33)}) 14. Nd3 Qd7 15. Rf2 b6 16. b3 f6 17. exf6 Rxf6 18. Bb2 Re6 19. Qd2 a5 20. a3 Nd8 21. Qe2 Rxe2 {0-1 (21) Arnold,G (2295)-Zalcík,V (2250) ICCF 2019}) 12. exd4 cxd4 13. Ne1 Rd8 (13... Be6 14. Nd3 Rfd8 15. b3 Bd5 16. Rf2 Bxg2 17. Kxg2 Rac8 18. Qf3 e6 19. Ba3 Bf8 20. Bxf8 Rxf8 21. Nb2 Rc7 22. Nc4 Qc5 23. Rd1 Nb4 24. a4 a6 25. Kh3 {Arnold,G (2174)-Adams,J ICCF 2015 1/2 (29)}) 14. Rf2 Nb4 15. Qf3 a5 16. Bd2 e6 17. Qb3 Bf8 18. a3 {Arnold,G (2236)-Weseman,G (2018) ICCF 2017 1/2 (58)}) 11. exd4 cxd4 12. Ne1 (12. Rf2 a5 13. e5 Nc6 14. b3 a4 15. Bb2 Rd8 16. a3 axb3 17. cxb3 d3 18. b4 Bf5 19. Qd2 Na7 20. Nh4 Be6 21. Be4 Bd5 22. Bxd5 Rxd5 23. Ng2 Rad8 {Schulz,B (1756)-Altieri,C ICCF 2013 0-1 (47)}) 12... d3+ 13. Kh1 dxc2 14. Nxc2 Rd8 15. Qe2 (15. Qe1 Nc6 16. Ne3 Nb4 17. Rb1 Be6 18. b3 Nd3 19. Qe2 Rac8 20. Bd2 {Lanzani,P (2227)-Tickel,W ICCF 2020 1/2}) 15... Nc6 16. Ne3 e6 17. e5 Bd7 18. Ng4 Nd4 19. Qf2 {Schmidt,T (2136)-Flor Trejo,R (2149) ICCF 2017 0-1 (49)}) (7... b5 8. Qe1 Qb6+ 9. Kh1 Nbd7 10. e4 b4 11. Nd1 dxe4 12. dxe4 Ba6 13. Rg1 e5 14. Nf2 Rae8 15. f5 gxf5 16. Be3 c5 17. Nh4 fxe4 18. Rd1 Bb7 19. Qd2 {Arnold,G (2210)-Jones,B (2149) ICCF 2015 1/2 (37)}) (7... Ng4 8. e4 d4 9. Ne2 Ne3 10. Bxe3 dxe3 11. Qc1 Qb6 12. e5 Bg4 13. c4 Nd7 14. h3 Bxf3 15. Bxf3 Rad8 16. d4 e6 17. c5 {1-0 (17) Bruce,R (2002)-Walsh,H (1557) ICCF 2019}) 8. e4 dxe4 (8... Qb6+ 9. Kh1 Ng4 10. Qe2 dxe4 11. Nxe4 Nc5 12. h3 Nxe4 13. dxe4 Nf6 14. e5 Nd5 15. c4 Nc7 16. Be3 Qa6 17. a4 Nd5 18. Bg1 Be6 19. Rfc1 {Vajas,S (1869)-Bellisario,C (1426) ICCF 2020 1-0 (27)}) 9. Nxe4 (9. dxe4 e5 10. f5 Qb6+ 11. Kh1 Qc7 12. Be3 b5 13. a3 a5 14. fxg6 hxg6 15. Ne1 Nb6 16. Nd3 Nc4 17. Bc5 Rd8 18. Qe2 a4 19. b3 axb3 20. cxb3 {Thau,O (1704)-Korman,J (1821) ICCF 2020 0-1 (29)}) 9... Qb6+ 10. Kh1 Rd8 11. Qe2 Qc7 12. a4 a5 13. Nf2 Nd5 14. c4 Nb4 15. f5 gxf5 16. Qxe7 Bf6 17. Bf4 Bxe7 {Schulenberg,H (2290)-Kolár,P (2288) ICCF 2018 1/2 (48)}) 6... Bg4 (6... O-O 7. O-O Qc7 (7... Bg4 8. h3 Bxf3 9. Bxf3 Nbd7 10. d4 e6 11. b3 Rc8 12. Ba3 c5 13. dxc5 Nxc5 14. b4 Nce4 15. Ne2 Qb6 16. Qd4 Qxd4 17. Nxd4 Nxg3 18. Rf2 {Lawrence,S (1981)-Lead,B (1802) ICCF 2018 0-1 (36)}) 8. a4 a5 9. d4 Na6 10. b3 Nb4 11. Ba3 Bf5 12. Rc1 Rfd8 13. Ne5 h5 14. h3 b6 15. g4 hxg4 16. hxg4 Bc8 17. Qf3 Rb8 18. Rf2 {Arnold,G (2282) -Brooks,M (2178) ICCF 2010 1/2 (41)}) 7. d3 O-O 8. O-O Nbd7 9. h3 Bxf3 10. Qxf3 Qb6 11. a4 e5 12. a5 Qc5 13. fxe5 Nxe5 14. Qf2 Qd6 15. d4 Ned7 16. g4 h6 { Arnold,G (2261)-Nemec,Z (2114) ICCF 2016 1/2 (52)}) (5. O-O Nf6 (5... Nd7 6. Nc3 Ngf6 7. d4 Nb6 8. b3 Bf5 9. h3 h5 10. Kh2 Nc8 11. a4 Qc7 12. Ng5 Nd6 13. a5 O-O-O 14. Ba3 h4 15. g4 Bxg4 16. Bxd6 exd6 17. hxg4 {Notegger,P-Kreutz,J (2097) ICCF 2006 0-1 (25)}) (5... Qb6+ 6. d4 Nf6 7. e3 (7. c4 O-O 8. Nc3 dxc4 9. e4 Bg4 10. Na4 Qd8 11. Nc3 Qb6 12. a4 a5 13. Be3 Na6 14. Qd2 Bxf3 15. Bxf3 Nb4 16. Be2 Rfd8 17. f5 c5 18. d5 Nc6 {Jung,R (2275)-Tassone,R (2124) ICCF 2017 1-0 (51)}) 7... O-O 8. Nbd2 c5 9. c3 Bf5 10. Ne5 Nbd7 11. Ndf3 Rac8 12. Nh4 Be4 13. Bh3 Qc7 14. Qa4 e6 15. Nhf3 Bxf3 16. Nxf3 Ne4 17. Ng5 {Ainsborough,G (1623) -Parushev,A (2316) ICCF 2020 0-1 (33)}) 6. Qe1 O-O 7. d3 Nbd7 (7... Qb6+ 8. e3 c5 (8... Bg4 9. Nc3 a5 10. Qf2 a4 11. e4 Qxf2+ 12. Rxf2 a3 13. e5 axb2 14. Bxb2 Nfd7 15. a4 Na6 16. h3 Bxf3 17. Bxf3 Rfb8 18. a5 e6 19. Kg2 {Arnold,G (2181) -Greig,S (2164) ICCF 2014 1/2 (68)}) 9. c3 Nc6 10. Kh1 Bf5 11. Qe2 Rad8 12. Na3 Qa6 13. Rd1 Rfe8 14. Nh4 Bg4 15. Bf3 h5 16. Bxg4 hxg4 17. Rb1 b5 18. b4 c4 19. Bb2 {Mitel,C-Neusch,J ICCF 2009 0-1}) 8. e4 dxe4 9. dxe4 e5 10. f5 (10. Nc3 b5 11. a3 Ba6 12. b4 Bb7 13. f5 a5 14. Rb1 Nb6 15. Be3 Nc4 16. Bc5 Re8 17. fxg6 hxg6 18. Rd1 Qc7 19. Ng5 Bh6 20. Rxf6 Bxg5 21. Rf2 Be7 {Renard,S (1873)-Blösl, S ICCF 2015 1/2 (60)}) 10... b5 (10... Qe7 11. h3 (11. Nbd2 Qc5+ 12. Kh1 Qxc2 13. fxg6 fxg6 14. b3 b6 15. Ba3 c5 16. Ng5 Ba6 17. Nc4 Ng4 18. Rxf8+ {Teague, D-Laurent,S ICCF 2014 0-1}) 11... Nc5 12. Nc3 gxf5 13. exf5 Bxf5 14. Nd4 Bg6 15. Bg5 h6 16. Bh4 Ncd7 17. Nf5 Bxf5 18. Rxf5 Rae8 19. Rd1 Qb4 20. Qe3 Qxb2 21. Rb1 Qxc2 22. Rxf6 {Arnold,G (2181)-Glaser,K (2256) ICCF 2014 1/2 (29)}) (10... Re8 11. Nc3 b5 12. fxg6 hxg6 13. Ng5 Nf8 14. h3 Ne6 15. Ne2 a5 16. a3 Bf8 17. Kh1 Be7 18. Ng1 Qc7 {Mozelius,P (2259)-Lundberg,C (2131) ICCF 2015 0-1 (40)}) 11. Nh4 (11. Bg5 h6 12. Be3 Ng4 13. Bd2 a5 14. a3 gxf5 15. h3 Ngf6 16. Nh4 f4 17. gxf4 Nh5 18. Nf5 Nxf4 19. Kh1 Nf6 20. Nxg7 Kxg7 21. Bxf4 exf4 22. Qh4 { Glatthaar,M (2413)-Conde Poderoso,A (2373) ICCF 2017 1/2 (38)}) 11... Nc5 12. Kh1 Ba6 13. h3 b4 14. Rg1 Qd4 15. Nd2 Bb5 16. g4 Qd6 {Liutaia,L (1904)-Gulbis, H (2228) ICCF 2019 1-0 (48)}) (5. d4 Nf6 6. O-O O-O 7. c3 (7. Nc3 Na6 (7... Bf5 8. e3 Nbd7 9. a4 Ne4 10. Nxe4 Bxe4 11. b3 c5 12. Ba3 Rc8 13. Ne5 cxd4 14. Bxe4 dxe4 15. exd4 f6 16. Nc4 f5 17. Qd2 Nf6 18. Rae1 Qc7 19. Ne3 {Schanzenbächer, M-Chbib,N (1737) ICCF 2011 0-1 (35)}) 8. Nh4 Nc7 9. Qd3 Nce8 10. Be3 Nd6 11. a4 Be6 12. Nf3 Bf5 13. Qd1 Nc4 14. Bc1 Ng4 15. h3 Nge3 16. Bxe3 Nxe3 17. Qd2 Nxf1 {Ainsborough,G (1623)-Belém Jr.,J (1848) ICCF 2020 0-1 (32)}) 7... Bf5 8. h3 ( 8. Nbd2 Nbd7 9. h3 h5 10. b3 Rc8 11. Bb2 Ne4 12. Nxe4 Bxe4 13. Ng5 Bxg2 14. Kxg2 c5 15. Qd3 e6 16. g4 cxd4 17. cxd4 Nf6 18. gxh5 Nxh5 {Ainsborough,G (1623) -Zunkovic,S (2326) ICCF 2020 0-1 (34)}) 8... Ne4 9. Kh2 Nd6 10. Nbd2 Nd7 11. Ne5 Nf6 12. g4 Be4 13. Nxe4 Nfxe4 14. Nd3 e6 15. Nf2 Nxf2 16. Rxf2 Rc8 { Rekhtman,P-Sowden,E (2291) ICCF 2007 0-1 (58)}) (5. c3 Nf6 6. O-O O-O 7. Qe1 ( 7. Na3 Nbd7 8. Nc2 a5 9. Kh1 Nc5 10. d3 Qd6 11. b3 b6 12. Rb1 Re8 13. c4 Ng4 14. h3 Nf6 15. Kh2 Nh5 16. Qd2 e5 17. Nxe5 {Andreassen,E (2204) -Wicklund-Hansen,G (2039) ICCF 2011 1-0 (28)}) 7... Bf5 8. d3 Qb6+ 9. Kh1 Re8 10. Nbd2 Nbd7 11. Nh4 Ng4 12. Nxf5 gxf5 13. Nf3 Ne3 14. Bxe3 Qxe3 15. Qd2 Qxd2 16. Nxd2 a5 {Gillard,J-Theofel,H ICCF 2013 1/2}) 5... Qb6 (5... Bg4 6. Nbd2 Nd7 7. O-O h5 8. Qe1 Qb6+ 9. Kh1 Rd8 10. e4 Nh6 11. h3 Be6 12. Ng5 Nf8 13. a4 Bc8 14. a5 Qc7 15. Qf2 dxe4 16. dxe4 c5 17. Nc4 {Tyulenko,Y (2449)-Bychkov,L (2255) ICCF 2014 1-0 (32)}) 6. Nc3 (6. c3 Nf6 7. Qb3 Nbd7 (7... Qxb3 8. axb3 Nbd7 9. b4 a6 10. Nbd2 O-O 11. Nb3 b6 12. Be3 e6 13. h3 Re8 14. O-O Rb8 15. Ra2 Bb7 16. g4 h6 17. Bf2 Bf8 18. Bh4 Be7 19. Ne5 {Pisani,C (2139)-Stapinski,R (1916) ICCF 2016 1-0 (61)}) 8. Na3 Qc7 9. Nc2 O-O 10. O-O b6 11. a4 Bb7 12. a5 c5 13. a6 Bc6 14. Na3 Rfd8 15. Nb5 Qc8 16. c4 e6 17. Bd2 Ne8 {Söderberg,K (2254) -Tauriainen,M (2407) ICCF 2020 0-1 (36)}) 6... Nh6 (6... d4 7. Ne4 Nh6 8. a4 a5 9. e3 dxe3 10. Qe2 O-O 11. c3 Ng4 12. h3 Nf6 13. Bxe3 Qc7 14. O-O b6 15. Nxf6+ exf6 16. Rfe1 Nd7 17. Bf2 Bb7 18. Rad1 {O'Connell,C (2387)-Rivas Maceda,J (2378) ICCF 2016 1/2 (25)}) 7. e4 dxe4 (7... O-O 8. a4 a5 9. e5 Bg4 10. h3 Bxf3 11. Bxf3 Nf5 12. Ne2 Na6 13. Ra3 f6 14. d4 e6 15. Bg4 c5 16. Bxf5 exf5 17. c3 Nc7 18. Be3 c4 19. Qd2 {Ragnarsson,J (2125)-Catt,P (2380) ICCF 2017 1/2 (44)}) 8. Nxe4 Nf5 9. Qe2 O-O 10. c3 Nd7 11. g4 (11. a4 a5 12. g4 Nd6 13. Be3 Qd8 14. O-O f5 15. Nxd6 exd6 16. gxf5 Rxf5 17. Rae1 Rf7 18. Ng5 Re7 19. f5 gxf5 20. Rxf5 Nf6 21. Rff1 Qe8 22. Qd2 Qg6 {Arnold,G (2263)-Atuán,J (2250) ICCF 2017 1/ 2 (40)}) 11... Nd6 12. h3 Qa6 13. Be3 Nxe4 14. dxe4 Qxe2+ 15. Kxe2 Nb6 16. Kd3 {Akdag,M (2568)-Blanco Gramajo,C (2517) ICCF 2017 1-0 (64)}) (4... b6 5. O-O Bb7 6. d4 e6 7. c4 Ne7 8. cxd5 exd5 9. Nc3 O-O 10. b4 Nd7 11. e3 Nf6 12. Qb3 c6 13. a4 a6 14. Ne5 Nf5 15. Ra2 b5 16. g4 {Deakin,C-Látal,F (2182) ICCF 2020 1-0 (48)}) (4... Bg4 5. Ne5 Bf5 6. d3 Nd7 7. Nf3 c6 8. c3 e5 9. Nxe5 Nxe5 10. fxe5 Bxe5 11. Nd2 Ne7 12. e4 dxe4 13. Nxe4 O-O 14. O-O Bxe4 15. Bxe4 Bg7 16. Be3 { Thau,O (1771)-Boakye,M (1641) ICCF 2019 1-0}) (4... e6 5. d3 b6 6. O-O Bb7 7. c3 Nd7 8. a4 a5 9. Nbd2 Ngf6 10. e3 O-O 11. Ne5 Ba6 12. Re1 Nc5 13. Bf1 Nfd7 14. d4 Bxf1 15. Rxf1 Nb7 16. Nc6 {Sedlácek,T (2229)-Repanic,F (2159) ICCF 2017 1/2}) 5. O-O Nc6 (5... Nf6 6. c3 O-O 7. d4 Qd6 8. Be3 Nbd7 9. Ne5 Rd8 10. Nd2 b6 11. Bf2 Bb7 12. h3 Qe6 13. Qb3 Rac8 14. e4 cxd4 15. Nxd7 Qxd7 16. e5 Ne8 17. cxd4 {Roth,P (2005)-Kulcár,L ICCF 2007 1/2 (37)}) 6. d3 Nf6 (6... Nh6 7. e4 dxe4 8. dxe4 O-O 9. c3 Bg4 10. Be3 b6 11. h3 Bxf3 12. Qxf3 Qc7 13. e5 Nf5 14. Bf2 Rac8 15. g4 Nh6 16. Na3 f5 17. Qd5+ Kh8 18. g5 {Stewart,D-Barcak,G ICCF 2020}) (6... d4 7. e4 (7. a4 Nh6 8. Na3 Be6 9. e4 dxe3 10. Re1 Ng4 11. Ng5 Bf5 12. c3 h6 13. Ne4 Nf2 14. Qe2 Bg4 15. Bf3 {Veen,K (2101)-Dyakov,A (2233) ICCF 2005 1-0 (29)}) 7... dxe3 8. c3 Bf5 9. Bxe3 Qb6 10. Qe2 O-O-O 11. Rd1 Bxd3 12. Rxd3 Rxd3 13. Qxd3 Qxb2 14. Nfd2 Qxa1 15. Bxc6 bxc6 16. Qa6+ Kd8 17. Bxc5 Qb2 18. Qxa7 {Thau,O (1704)-Overturf,S (1730) ICCF 2020 1/2}) 7. c3 (7. Nc3 d4 ( 7... O-O 8. e4 (8. h4 Nh5 9. Qe1 Nb4 10. Rb1 d4 11. Ne4 Nxc2 12. Qf2 Bf5 13. Nxc5 Rc8 14. Nxb7 Qb6 15. Ne5 Bxe5 16. fxe5 Ne3 17. Bxe3 dxe3 18. Qf3 Qd4 19. Kh2 Bg4 {Owens,J (2097)-Azevedo,P (2021) ICCF 2016 0-1 (51)}) (8. a3 b6 (8... Qc7 9. h3 Bd7 10. e4 dxe4 11. dxe4 Rad8 12. Qe2 Nd4 13. Qf2 Nxf3+ 14. Qxf3 Bc6 15. Qf2 Ne8 16. e5 f6 17. Qxc5 Bxg2 18. Qxc7 Nxc7 19. Kxg2 fxe5 20. Rb1 { Franzén,T (2336)-Carvaga,R (2137) ICCF 2009 1/2 (63)}) 9. e4 dxe4 10. dxe4 Ba6 11. Re1 Qc7 12. e5 Rad8 13. Nd2 Ne8 14. Nd5 Qd7 15. c3 Nc7 16. Nxc7 Qxc7 17. b4 Kh8 18. Qf3 Bb7 19. Qe3 cxb4 {Demian,V-Karapchanski,D ICCF 1984 1/2 (47)}) (8. Ne5 Rb8 9. e4 dxe4 10. Nxc6 bxc6 11. dxe4 Qb6 12. h3 Nh5 13. g4 Bd4+ 14. Kh2 Bxc3 15. bxc3 Ng7 16. f5 Ba6 17. Rf2 Bc4 18. Qf3 Rbd8 19. Bh6 f6 {Bakulin,Y (2264)-Popov,V (2112) ICCF 2015 1-0 (33)}) 8... dxe4 (8... d4 9. Ne2 (9. e5 dxc3 10. exf6 Bxf6 11. bxc3 Bxc3 12. Rb1 b6 13. Rb3 Bg7 14. Bb2 Be6 15. Bxg7 Kxg7 16. Qa1+ f6 17. Rbb1 Rc8 18. Qb2 Bd5 19. Rbe1 c4 20. dxc4 Bxc4 {Vajas,S (2022)-Camps,J (1926) ICCF 2017 0-1 (79)}) (9. Na4 b6 10. e5 Nd5 11. c4 (11. Ng5 h6 12. c4 dxc3 13. Nxc3 hxg5 14. Bxd5 Qe8 15. Rf2 Bf5 16. g4 Be6 17. Bxe6 fxe6 18. Qe2 Rd8 19. Be3 Qd7 20. fxg5 Rxf2 {Passalidis,S-Ben Fredj,J ICCF 2010 0-1 (38)}) 11... dxc3 12. bxc3 f6 13. d4 cxd4 14. Nxd4 Nxd4 15. Qxd4 Be6 16. Rd1 Nc7 17. Bxa8 Qxa8 18. Be3 fxe5 19. fxe5 Qc6 20. Nb2 Nb5 {De La Forét,F (1624)-Ozols,A ICCF 2015 0-1 (59)}) 9... e5 (9... a5 10. h3 a4 (10... Qb6 11. Nd2 Rd8 12. Nc4 Qc7 13. a4 Be6 14. b3 Ra6 15. f5 Bxc4 16. bxc4 Nd7 17. Nf4 Nb4 18. Nd5 Nxd5 19. exd5 Qxg3 20. Bf4 Qh4 21. Rb1 Ra7 22. Qe2 {Andreassen,E (2157) -Wicklund-Hansen,G (2067) ICCF 2010 1-0 (61)}) 11. c4 (11. g4 b5 12. Qe1 Bb7 13. Qf2 Nb4 14. Ng3 Qb6 15. a3 Nc6 16. Bd2 Rab8 17. e5 Nd5 18. Rae1 c4 19. Ng5 {Morelli,A (2263)-Pino Muñoz,F (2298) ICCF 2013 1-0 (33)}) 11... dxc3 (11... Nd7 12. e5 a3 13. bxa3 Nb6 14. Nd2 f6 15. exf6 exf6 16. g4 Ne7 17. Re1 f5 18. g5 Na4 19. Rb1 Ra7 20. Nf3 b6 21. Ne5 Qc7 22. Bd2 Bb7 23. Bxb7 {Schulz,B (1756) -Lefebvre,A ICCF 2013 0-1 (36)}) 12. bxc3 c4 13. Ned4 Nxd4 14. Nxd4 Nh5 15. Qf3 e5 16. fxe5 Bxe5 17. g4 Ng3 18. Rf2 cxd3 19. Qxd3 Qc7 20. Bh6 Rd8 21. Bg5 { Bruce,R (1761)-Hough,G ICCF 2014 0-1 (49)}) (9... Ng4 10. h3 Ne3 11. Bxe3 dxe3 12. c3 Re8 (12... Rb8 13. e5 f6 14. d4 Be6 15. exf6 exf6 16. dxc5 Qc8 17. Kh2 Re8 18. Nfd4 Bf7 19. b4 Bc4 20. Re1 f5 21. Qa4 b5 22. Qa3 Nxd4 23. cxd4 Qe6 24. Rad1 {Owens,J (2097)-Vaughan,J (2039) ICCF 2016 1/2 (39)}) 13. Re1 e5 14. fxe5 Nxe5 15. Nf4 b5 16. a3 a5 17. Qe2 (17. Nxe5 Bxe5 18. Qe2 g5 19. Nd5 {Kaminski, J (1918)-Zhuravlev,K (2134) ICCF 2018 0-1 (33)}) 17... Qd6 18. Qxe3 Bb7 19. Rad1 Nxf3+ 20. Bxf3 Rad8 21. Qf2 {Maltais,C-Leijen,P ICCF 2013 0-1 (51)}) (9... h6 10. c3 Qb6 11. cxd4 cxd4 12. h3 Rd8 13. Kh2 Nd7 14. b3 Nc5 15. Ne1 a5 16. Ba3 Nb4 17. Qd2 Bd7 18. e5 Bc6 19. Bxc6 Nxc6 20. Nf3 Ne6 21. Rac1 {Veen,K (2113)-Calder,H ICCF 2006 1-0 (37)}) 10. fxe5 (10. h3 Ne8 11. fxe5 Nxe5 12. Nxe5 Bxe5 13. Bf4 f6 14. Bh6 Ng7 15. Qd2 {1-0 (15) Veen,K (2113)-Gorokhov,S (2058) ICCF 2006}) 10... Ng4 11. Nf4 (11. Bg5 Qe8 12. Bd2 Ngxe5 13. Nf4 Bg4 14. h3 Nxf3+ 15. Bxf3 Bxf3 16. Qxf3 Ne5 17. Qg2 Qd7 18. Nd5 f5 19. Bf4 fxe4 20. dxe4 Rf7 21. Bxe5 Bxe5 22. Rxf7 Qxf7 {Blondel,F (1985)-Boitte,B (1510) ICCF 2019 0-1 (45)}) 11... Ngxe5 12. Nxe5 Nxe5 13. Nd5 Bg4 14. Qe1 Be6 15. Bf4 Re8 16. Qd1 c4 17. Bxe5 Bxe5 18. dxc4 Rc8 19. b3 b5 20. cxb5 {Dreisch,J (2106) -Klochán,P (2335) ICCF 2016 0-1 (44)}) 9. dxe4 Qb6 (9... Qxd1 10. Rxd1 e5 11. Nxe5 (11. Be3 b6 12. h3 (12. Rd6 Nd4 13. fxe5 Ng4 14. Bxd4 cxd4 15. Rxd4 Nxe5 16. Nxe5 Bxe5 17. Rd3 Be6 18. a3 Rac8 19. Rad1 Kg7 20. Kf2 {Trani,F (2048) -Raan,J (1992) ICCF 2012 0-1 (45)}) 12... Nh5 13. Kh2 exf4 14. gxf4 Be6 15. e5 Rae8 16. Ng5 Nb4 17. Rac1 Bf5 18. Nge4 f6 19. Nd6 fxe5 20. Nxe8 Rxe8 21. fxe5 Nxc2 22. Bd5+ Kh8 {Wærstad,L (2024)-Trembeckí,L ICCF 2007 0-1 (42)}) 11... Nxe5 12. fxe5 Ng4 13. Bf4 Nxe5 14. Rd5 Nc6 15. e5 Re8 16. Re1 Nb4 17. Rxc5 Nxc2 18. Rd1 Nb4 19. Rd2 Na6 20. Rxc8 Raxc8 21. Bxb7 {Domenche Redondo,F (1627)-Aguilar Medina,J (1572) ICCF 2016 1-0 (50)}) 10. e5 Rd8 11. Qe1 (11. Qe2 Ng4 12. Kh1 Bf5 13. h3 Nh6 14. g4 Be6 15. Na4 Qa5 16. b3 Rac8 17. Bd2 Nb4 18. Qf2 Qc7 19. Bxb4 cxb4 20. Nd4 Bd7 21. Rad1 {Grapenfalk,H-Laine,E (1797) ICCF 2017 0-1 (37)} ) 11... Ng4 12. h3 Nh6 13. Ng5 Nd4 14. Qf2 Be6 15. Nxe6 fxe6 16. Ne4 c4 17. Kh2 Qa5 18. g4 Qc7 19. c3 {Veen,K-Dantas,R ICCF 2005 1-0 (48)}) 8. Na4 (8. Ne4 Nxe4 (8... Qb6 9. a3 Nd5 10. Rb1 Bf5 11. Nh4 Bxe4 12. Bxe4 Nc3 13. Bxc6+ bxc6 14. bxc3 Qxb1 15. cxd4 cxd4 16. e4 O-O 17. Qe2 Rab8 18. Nf3 Qa1 19. g4 Rb1 20. Bd2 {Latorre López,J-Benages Mabres,V ICCF 2007 0-1 (32)}) 9. dxe4 O-O 10. a3 (10. h3 Qb6 (10... e5 11. f5 gxf5 12. exf5 e4 13. Ng5 e3 14. Ne4 Be5 15. g4 Bc7 16. Qd3 b6 17. Bxe3 dxe3 18. Qxe3 Qh4 19. Qf2 Qe7 20. f6 Qe5 21. Qh4 Nd4 {Nilsson, P (2348)-Dufour,M (2265) ICCF 2014 1/2 (27)}) 11. e3 Rd8 12. Qe2 Nb4 13. Kh2 Be6 14. f5 Bd7 15. a4 Rac8 16. Ne1 Qd6 17. Qf3 b6 18. exd4 cxd4 19. Qb3 gxf5 20. exf5 Qc5 21. Bg5 Nxc2 {Henri,J (2386)-Dutra,A (2338) ICCF 2008 0-1 (44)}) ( 10. e3 Qb6 (10... e5 11. f5 gxf5 12. exf5 Bxf5 13. Nxe5 Qe8 14. Nxc6 Be4 15. Bxe4 Qxe4 16. Na5 Rae8 17. Qe2 f5 18. Nb3 b6 19. Qc4+ Qe6 20. Qxe6+ Rxe6 21. exd4 c4 22. c3 {Jensen,K (2153)-Strebel,P (2100) ICCF 2015 1-0 (41)}) 11. exd4 (11. Qe2 Bd7 (11... Rd8 12. e5 (12. a4 Bg4 13. h3 Bxf3 14. Bxf3 c4 15. e5 d3 16. Qd1 Rac8 17. Ra3 Nb4 18. cxd3 Nxd3 19. Qc2 f6 20. exf6 Bxf6 {0-1 (20) Hadley,G-Haller,P (2055) ICCF 2010}) 12... Bf5 13. e4 Bd7 14. Rf2 Bg4 15. b3 a5 16. h3 Bd7 17. a4 Nb4 18. Ne1 Qc7 19. Ba3 Be6 20. Bf1 Qd7 21. g4 Qc7 22. Qf3 b6 23. Rd1 {Fister,B (2204)-LePage,C (2161) ICCF 2007 1/2 (44)}) 12. e5 Rfd8 13. Rd1 Bf5 14. b3 Nb4 15. e4 Bg4 16. a3 Nc6 17. Kh1 a5 18. h3 Be6 19. Rb1 a4 20. Ng5 Bd7 21. e6 fxe6 22. e5 axb3 {Jensen,K (2153)-Groot,P (2142) ICCF 2015 1-0 (50)}) (11. e5 Bf5 12. Nh4 (12. exd4 cxd4 13. Kh1 Rac8 14. Nh4 Be6 15. a3 Rfd8 16. Qd3 Na5 17. b4 Nc4 18. Re1 a5 19. f5 Bd5 20. Bxd5 Rxd5 21. e6 Qc6 {Korman, J (1816)-Biedermann,T (2489) ICCF 2019 0-1 (42)}) 12... Be6 (12... Bd7 13. Rb1 Rad8 14. a3 f6 15. exf6 exf6 16. exd4 Nxd4 17. Qd3 Bb5 18. c4 Qe6 19. Rf2 Bxc4 {Marconi,N-Roy,R (2064) ICCF 2020 0-1}) 13. a3 Rad8 14. Qe2 c4 15. Rd1 d3 16. Qd2 f6 17. exf6 Bxf6 18. Nf3 c3 19. Qf2 cxb2 {0-1 (19) Marconi,N-Thiel,K (2049) ICCF 2020}) 11... cxd4 12. Kh1 (12. Rf2 Rd8 13. e5 f6 14. exf6 Bxf6 15. Bd2 Bf5 16. Rb1 Rac8 17. Bf1 d3 18. Bxd3 Bxd3 19. cxd3 Rxd3 20. Qe2 Rcd8 21. Be1 Kg7 22. Ng5 R8d6 23. Kg2 Qb5 {Jung,R (2309)-Bobel,P (2313) ICCF 2018 1/2 (31)}) 12... Be6 (12... Rd8 13. Ne1 Bd7 14. Nd3 Nb4 15. b3 Rac8 16. Rf2 e6 17. Bb2 Nxd3 18. cxd3 e5 19. Rc1 Qa5 20. fxe5 Bxe5 21. Bf3 Qa6 22. Kg2 Rxc1 23. Bxc1 Rc8 24. Bh6 {Alejos,P (2175)-Quidiello Prado,M ICCF 2016 0-1 (51)}) (12... Bg4 13. e5 (13. h3 Be6 14. b3 Rac8 15. Bb2 Rfd8 16. Qd2 Nb4 17. Ne1 a5 18. e5 a4 { Veen,K (2113)-Samerdokas,A ICCF 2006 0-1 (57)}) 13... f6 14. exf6 Bxf6 15. a3 Rac8 16. Re1 Na5 17. Qd2 Bf5 18. Qb4 Rxc2 19. Qxb6 axb6 20. b4 Nb3 21. Rb1 Rfc8 22. Rxb3 Rxc1 23. Kg1 d3 24. Rxc1 {White,C (1766)-O'Brien,G (1756) ICCF 2015 0-1 (25)}) 13. Ne1 Rac8 14. a3 (14. Nd3 Nb4 15. Rf2 Nxd3 16. cxd3 Bd7 17. e5 Rc7 18. b3 Rfc8 {Veen,K (2113)-Ermolaev,A (2195) ICCF 2006 1-0 (43)}) 14... Na5 15. Nd3 Nc4 16. Re1 Rfd8 17. g4 Ne3 18. Bxe3 dxe3 19. Qe2 Bc4 20. Rab1 Bxd3 21. cxd3 Bd4 {Demian,V-Yrjölä,J ICCF 1984 1-0}) (10. e5 Bf5 (10... Qb6 11. Kh1 Bf5 12. a3 Be4 13. Ng5 Bxg2+ 14. Kxg2 c4 15. c3 Rfd8 16. Qc2 d3 17. exd3 Rxd3 18. Qe2 Rad8 19. Nf3 Qc5 20. Re1 Qa5 21. Be3 Qd5 22. Kf2 {Bassanini,M (1745) -Schubert,S (1996) ICCF 2006 0-1 (50)}) (10... f6 11. exf6 exf6 12. e4 Re8 ( 12... Qb6 13. Kh1 Bg4 14. h3 Be6 15. b3 Rad8 16. Re1 Rd7 17. Bf1 Re8 18. Nd2 Qc7 19. Kh2 a6 20. a4 Rde7 21. Ba3 Nd8 22. Qf3 g5 23. Bd3 gxf4 24. gxf4 { Alejos,P (1976)-Cotura Vidal,L (1904) ICCF 2013 1/2 (42)}) 13. Ne1 a5 14. b3 a4 15. Bd2 Be6 16. Nd3 Qe7 17. Qf3 Bf7 18. e5 fxe5 19. fxe5 Be6 20. Rae1 Rf8 21. Qd1 Rxf1+ 22. Rxf1 {Knöppel,B (2057)-Deforel,J (2059) ICCF 2017 1/2 (32)}) 11. c3 Qb6 12. Qb3 Qxb3 13. axb3 Rfd8 14. Ng5 f6 15. Ne4 Bxe4 16. Bxe4 fxe5 17. f5 gxf5 18. Rxf5 Rd6 19. Kg2 a6 20. g4 h6 21. h4 Rf8 {Rhodes,J (2395)-Alexa,J (2434) ICCF 2006 1/2 (52)}) (10. Kh1 Bg4 11. h3 Be6 12. b3 Qc7 13. Bb2 Rfd8 14. Qc1 c4 15. c3 d3 16. exd3 Rxd3 17. Qc2 Rad8 18. b4 h5 19. Rae1 b5 20. e5 a5 21. a3 axb4 {Bruce,R (1911)-Brotherton,T (2059) ICCF 2017 0-1 (39)}) 10... c4 11. e3 d3 12. cxd3 Qxd3 13. Qxd3 cxd3 14. Rd1 Rd8 15. e5 f6 16. exf6 Bxf6 17. Ne1 Na5 18. Rxd3 Be6 19. Be4 Nb3 {Nielsen,J (2004)-Dempster,D (1988) ICCF 2008 1/2 (65)}) 8... Qd6 (8... Nd7 9. c4 (9. Ng5 Qc7 10. c3 O-O 11. cxd4 Nxd4 12. e3 Nc6 13. Bd2 b6 14. Rc1 Bb7 15. a3 Nf6 16. b4 Rad8 17. Qc2 Qd7 18. bxc5 Qxd3 19. cxb6 Qxd2 20. Qxd2 Rxd2 {Arnold,G (2216)-Raijmaekers,C (2205) ICCF 2017 1/2 (47)}) 9... O-O (9... a6 10. a3 O-O 11. Qc2 Qc7 12. e4 b5 13. cxb5 axb5 14. Nxc5 Nb4 15. axb4 Rxa1 16. e5 Nxc5 17. bxc5 f6 18. exf6 Bxf6 19. Nd2 Bb7 20. c6 {De Ridder,M (1975)-Godesar,R ICCF 2013 1/2 (28)}) 10. e4 (10. a3 Qc7 (10... Rb8 11. Rb1 a6 12. b4 cxb4 13. axb4 b5 14. cxb5 Rxb5 15. Bd2 Qc7 16. Ng5 { Bassanini,M-Bush,F ICCF 2005 0-1 (47)}) 11. Bd2 b6 12. b4 Bb7 13. Rb1 Rab8 14. bxc5 bxc5 15. Qc2 Rfc8 16. Rb5 a6 17. Rb2 Nd8 18. Rfb1 e6 19. Kf2 Bc6 20. Ne1 Rxb2 21. Rxb2 {Nagel,H (2103)-Milde,L (2299) ICCF 2016 0-1 (28)}) 10... dxe3 11. Bxe3 Nd4 12. Nc3 (12. Nxd4 cxd4 13. Bd2 Rb8 14. b4 b5 15. cxb5 Rxb5 16. Bc6 Rb8 17. Qf3 Nb6 18. Nxb6 Qxb6 19. Rfc1 Bb7 20. a4 {Pastor Cutillas,A-Pointon,M (1726) ICCF 2018 1-0 (29)}) 12... Rb8 13. Qd2 Nf6 14. Bxd4 cxd4 15. Nb5 Ng4 16. Nxa7 Bd7 17. Nb5 Ne3 18. Rfe1 Bxb5 19. cxb5 e5 20. Nxe5 {Liutaia,L (1904) -Thiel,K (2052) ICCF 2019 1-0 (67)}) (8... b6 9. Ne5 Nxe5 10. fxe5 Nd5 11. c4 Nc7 12. Bxa8 Nxa8 13. e4 O-O 14. a3 Nc7 15. b4 Ne6 16. Nb2 h5 17. b5 {Vajas,S (1911)-Lubienski,A (2046) ICCF 2020 0-1 (50)}) 9. c4 (9. e4 dxe3 10. Bxe3 b6 11. Ne5 Nxe5 12. fxe5 Qxe5 13. Re1 Ng4 14. Bc6+ Kf8 15. Qd2 Nxe3 16. Rxe3 Qb8 17. Qg2 Bd4 18. Rae1 Qe5 {Rozhnev,I (2193)-Castillo,R ICCF 2017 1/2 (43)}) 9... O-O 10. a3 b6 (10... Rb8 11. Ne5 Ng4 12. Nxc6 bxc6 13. Qd2 Ne3 14. Qa5 Nxf1 15. Kxf1 Bg4 16. h3 Bf5 17. g4 Bd7 18. Nxc5 f5 19. Qxa7 Bc8 20. g5 e5 21. Ke1 Rf7 22. Qa5 {Vecek,M (2323)-Yusin,J ICCF 2017 1/2 (53)}) 11. b4 Bb7 12. bxc5 bxc5 13. Rb1 Nd8 14. e4 dxe3 15. Bxe3 Nd7 16. Qd2 Rb8 17. Nc3 Bxc3 18. Qxc3 Bxf3 { Allen,E (1831)-Taksrud,V (2136) ICCF 2020 (31)}) (7. Qe1 O-O (7... Bf5 8. Qf2 d4 9. a4 O-O 10. Na3 Ng4 11. Qe1 {1-0 (11) Velker,W (2183)-Nora,F (2155) ICCF 2014}) (7... Qb6 8. Nc3 c4+ 9. e3 cxd3 10. cxd3 O-O 11. Ne5 Rd8 12. Bd2 Qa6 13. a4 Bf5 14. e4 dxe4 15. dxe4 Be6 16. Nxc6 bxc6 17. e5 Nd5 18. Ne4 Qb6+ 19. Kh1 { Schulenberg,H (2206)-Booth,R (2057) ICCF 2017 1/2 (51)}) (7... d4 8. Na3 Rb8 9. e4 dxe3 10. Bxe3 Ng4 11. Bxc5 b6 12. Bf2 Bxb2 13. Rb1 Bg7 14. Nc4 O-O 15. Ne3 Qd6 16. Ng5 Nxe3 17. Bxe3 Rd8 18. Qd2 Bf5 19. Ne4 {Schmidt,T (2136)-Popov,V (2075) ICCF 2017 0-1 (52)}) 8. e4 (8. h3 Re8 (8... d4 9. c4 (9. a4 Nd5 10. Na3 b6 11. Bd2 e6 12. c4 Nde7 13. g4 Rb8 14. Nc2 a5 15. Qg3 f6 16. Na3 Bb7 17. Rad1 Nb4 18. b3 Qd7 19. Nb5 Rbd8 20. Rc1 Qc8 {de la Rosa Solórzano,J (2412)-Reyes Maldonado,C (2416) ICCF 2020 1/2 (45)}) (9. e4 dxe3 10. Qxe3 b6 11. Na3 Bb7 12. Nc4 Rc8 13. Nfe5 b5 14. Nxc6 Bxc6 15. Ne5 Bxg2 16. Kxg2 Nd7 17. Re1 c4 18. d4 Nb6 19. c3 Nd5 20. Qe2 e6 {Hoynck van Papendrecht,F (2134)-Avchinikov,V (2208) ICCF 2015 1/2 (37)}) 9... Bd7 10. Na3 Qc8 11. Kh2 Qc7 12. e3 Rae8 13. Nb5 Qd8 14. exd4 a6 15. Na3 Nxd4 16. Nxd4 cxd4 17. Qf2 Bf5 18. Rd1 e5 19. fxe5 Rxe5 { Kaminski,J (2004)-Dubois,C (2070) ICCF 2015 0-1 (35)}) (8... Qc7 9. Na3 a6 10. e4 b5 11. c3 dxe4 12. dxe4 Rd8 13. Nc2 e5 14. f5 c4 15. g4 Bb7 16. Nh2 Rd3 17. Bg5 Qd6 18. Qh4 Nd7 19. Ne1 f6 20. Bc1 {Noiré,E (2214)-Gonzalez,B (2149) ICCF 2007 1-0 (71)}) 9. Qf2 b6 10. Ne5 Bb7 {1/2 (10) Kaminski,J (1976)-Shchebenyuk, T (2072) ICCF 2016} 11. Nd2 Nd7 12. Nxc6 Bxc6 13. c3 Qc7 14. Nf3 Rac8 15. Bd2 e5 16. fxe5 Nxe5 17. Rae1 Nxf3+ 18. Bxf3 Qd7 19. g4 d4 {Noiré,E (2214) -Pitkänen,J (2214) ICCF 2007 1/2 (31)}) (8. Na3 e5 9. fxe5 Ng4 10. c4 d4 11. Nc2 (11. Bf4 Re8 12. Nc2 Ncxe5 13. Nxe5 Nxe5 14. Qf2 Ng4 15. Qf3 a5 16. Bd6 Bf5 17. Bxc5 h5 18. b3 h4 19. Qxb7 Rb8 {Vriens,H (2088)-Sorbi,L (1993) ICCF 2017 0-1 (39)}) 11... a5 12. Bf4 Ngxe5 13. Nxe5 Nxe5 14. b3 Re8 15. Qd2 Ng4 16. Rae1 h6 17. Bd5 Kh7 18. Qd1 f5 19. Bc1 Ra7 {Vecek,M (2323)-Jahn,P (2213) ICCF 2017 0-1 (48)}) (8. Qf2 b6 9. h3 Bb7 10. e3 Rc8 11. Nc3 d4 12. exd4 cxd4 13. Nxd4 Qxd4 14. Qxd4 Nxd4 15. Bxb7 Rc7 16. Ba6 Nxc2 17. Rb1 Rd8 18. Bc4 Nb4 19. Rf3 Rcd7 {Kaminski,J (1970)-Piacenti,L (1990) ICCF 2016 0-1 (58)}) 8... d4 (8... dxe4 9. dxe4 e5 (9... Nd4 10. Na3 (10. Nxd4 cxd4 11. e5 Ng4 12. h3 Nh6 13. g4 Kh8 14. Na3 Qb6 15. Nc4 Qc7 16. Qb4 a5 17. Qb5 Be6 18. Na3 f6 19. exf6 exf6 20. Qxb7 Qxb7 21. Bxb7 Rab8 {Spasov,V (2452)-Gupta,A ICCF 2006 0-1 (28)}) 10... Nxf3+ 11. Bxf3 Bh3 12. Bg2 Bxg2 13. Kxg2 Qb6 14. e5 Nd5 15. Qe4 Rad8 16. Nc4 Qa6 17. b3 Rd7 18. a4 Qe6 19. Bb2 f5 20. Qf3 Rfd8 21. Rfd1 {Nielsen,J (1942) -Neumann,K (2108) ICCF 2008 1/2 (28)}) (9... Qb6 10. Nc3 (10. Na3 Rd8 11. c3 c4+ 12. Kh1 Qa6 13. e5 Nd5 14. Ng5 h6 15. Ne4 Rb8 16. e6 b5 17. exf7+ Kxf7 18. Be3 Bf5 19. Nc5 Qc8 20. Bg1 Nf6 21. Qe2 a6 {Dearnley,A (2342)-Doye,P (2309) ICCF 2012 1-0 (57)}) (10. c3 e5 11. Nbd2 c4+ 12. Kh1 Qa6 13. Qe2 exf4 14. gxf4 Nh5 15. Ng1 b5 16. e5 {Shell,R-DiJoseph,J (1905) ICCF 2014 1/2 (35)}) 10... Nd4 11. e5 Nxc2 12. Qf2 Nxa1 13. exf6 Qxf6 14. Ne5 Qf5 15. Be3 f6 16. Be4 Qh3 17. Nc4 Be6 18. Na5 b6 19. Bg2 Qf5 20. Bxa8 Rxa8 21. Nc6 {Perry,D (2456) -Wojtkowiak,R (2250) ICCF 2008 1-0 (46)}) (9... Bd7 10. e5 Nd5 11. Ng5 Bf5 12. Ne4 f6 13. exf6 Nxf6 14. Nxf6+ Rxf6 15. c3 Re6 16. Qf2 Nd4 17. Na3 Re2 18. cxd4 Bxd4 19. Nb5 Bxf2+ 20. Rxf2 Qd1+ 21. Bf1 {Anderson,C-Clancey,J (1827) ICCF 2019 0-1}) (9... Bg4 10. h3 (10. c3 Qd7 11. Nbd2 Bh3 12. Bxh3 Qxh3 13. Qe2 Ng4 14. Ng5 Qh5 15. h3 Nf6 16. g4 Qh4 17. Kg2 Nd7 18. Ndf3 Qh6 19. e5 Bh8 20. e6 Nf6 21. f5 Qg7 {Knöppel,B (2072)-Günther,R (1479) ICCF 2019 1-0}) 10... Bxf3 11. Rxf3 e5 12. f5 Nd4 13. Rf2 gxf5 14. exf5 Re8 15. Be4 Qb6 16. Na3 Rad8 17. c3 Nb5 18. Nxb5 Qxb5 19. a4 Qa6 20. Bc2 c4 21. Re2 {Avchinikov,V (2256) -Vanchak,I (2234) ICCF 2015 1-0 (57)}) 10. Nc3 (10. fxe5 Ng4 11. Nc3 Ncxe5 12. Nxe5 Nxe5 13. Nd5 (13. Be3 b6 14. Rd1 Qe8 15. Nd5 Qa4 16. Nc3 Qa5 17. h3 Ba6 18. Rf2 Nc4 19. e5 Rae8 20. Nd5 Qxe1+ 21. Rxe1 Rxe5 {Steenlandt,A (1949) -Heiermann,L (1930) ICCF 2012 0-1}) 13... Be6 14. Bf4 Nc4 15. e5 Bxd5 16. Rd1 Qe7 17. Rxd5 Rad8 18. b3 Rxd5 19. Bxd5 Nxe5 20. c4 b6 21. Kg2 Kh8 {Vecek,M (2323)-in 't Veld,H (2105) ICCF 2017 1/2 (25)}) (10. Na3 Re8 11. f5 h6 12. c3 gxf5 13. Nh4 fxe4 14. Nc4 Be6 15. Nd2 Qb6 16. Nxe4 Nxe4 17. Bxe4 Bh3 18. Rf2 Ne7 19. Qe2 Qe6 20. Be3 b6 21. Bxa8 Rxa8 {Kennedy,J-Labayen Tonda,A ICCF 2019 1/2 (66)}) (10. f5 gxf5 11. Nh4 Nxe4 12. Nxf5 Bxf5 13. Rxf5 Nd6 14. Rf1 e4 15. Qd1 Re8 16. Nc3 e3 17. Re1 Nf5 18. Nd5 Nb4 19. c4 Qg5 20. Nxb4 cxb4 21. Bxb7 Rad8 {Kaminski,J (1943)-Stadelmann,H (1942) ICCF 2020 0-1 (25)}) 10... Nd4 ( 10... Bg4 11. Nxe5 Nxe5 12. fxe5 Qd4+ 13. Be3 Qxe5 14. Qf2 Nd7 15. h3 Be6 16. Rad1 Qc7 17. Nd5 Qa5 18. Qd2 Qxd2 19. Rxd2 b6 20. Nc7 Ne5 21. Nxa8 Nc4 22. Nc7 {Guinefolleau,M-Gérard,A (1908) ICCF 2015 1-0}) (10... exf4 11. gxf4 (11. Bxf4 Qb6 12. e5 Nh5 13. Be3 Nxe5 14. Nxe5 Bxe5 15. Nd5 Qxb2 16. c3 Bd6 17. Bh6 Be6 18. Bxf8 Rxf8 19. Rd1 c4 20. Bf3 Qb5 21. Qd2 Qc5+ 22. Rf2 f5 {Roynet,S (2121) -Walsh,P (1550) ICCF 2017 1-0 (29)}) 11... Nd4 12. e5 Nxc2 13. Qf2 Nxa1 14. exf6 Qxf6 15. Be3 Bf5 16. Rxa1 b6 17. Ne5 Rad8 18. Re1 Qe6 19. Bf1 Qc8 20. Qh4 h6 21. Qg3 Kh7 22. Be2 {Knöppel,B (2072)-Plyusnin,A (2031) ICCF 2019 0-1 (54)}) (10... Be6 11. f5 Bc4 12. Rf2 {Straka,J (2075)-Van Buren,H (1822) ICCF 2020}) 11. Qd2 (11. fxe5 Nd7 12. Nxd4 (12. Nd5 Nxc2 13. Qd1 Nxa1 14. Bg5 Qa5 15. Qxa1 Qa4 16. b3 Qxe4 17. Ne7+ Kh8 18. Re1 Qg4 19. Nd5 b5 20. h3 Qe6 21. Qd1 Bb7 22. Nf4 Bxf3 23. Nxe6 {Malnar,A (2428)-Sánchez Ródenas,A (2344) ICCF 2020 1/2}) 12... cxd4 13. Nd5 Nxe5 14. Kh1 (14. Bf4 Be6 (14... b6 15. Qb4 Be6 16. Ne7+ ( 16. Rad1 Re8 17. c3 dxc3 18. bxc3 Rc8 19. Qa3 a5 20. Qc1 Bxd5 21. exd5 Bf8 22. d6 Bxd6 23. Bd5 Rc7 24. Kh1 Rd7 25. c4 Qc8 26. Bg5 Bf8 27. Qf4 Bg7 {Díaz Rubí, F (2229)-Pallás Muiño,J (2318) ICCF 2018 1/2 (49)}) 16... Kh8 17. Bxe5 Bxe5 18. Nc6 Qc7 19. Nxd4 Bc4 20. Rfd1 Rfd8 21. c3 b5 22. Nb3 Rxd1+ 23. Rxd1 Rd8 24. Ra1 Bd6 25. Qa5 Bc5+ 26. Kh1 {Vercauteren,N (1679)-Aguilar Medina,J (1571) ICCF 2018 0-1 (44)}) 15. Qb4 a5 (15... Bxd5 16. exd5 Rc8 17. Rae1 Rxc2 18. Bxe5 Rxg2+ 19. Kxg2 Qxd5+ 20. Rf3 Bxe5 21. Qb3 Rd8 22. Kf1 f6 23. Qxd5+ Rxd5 24. Rc1 Kg7 25. Rc8 Rd7 26. Ke1 f5 27. Ra8 {Bonse,H-Fortin,M (1661) ICCF 2016 1-0 (41)} ) (15... Kh8 16. Kh1 g5 17. Bd2 b6 18. Rad1 Rc8 19. Qxd4 Nc4 20. Qf2 Nxb2 21. Rc1 f5 22. Bb4 Rf7 23. Qe2 Qd7 24. Rce1 fxe4 25. Rxf7 Bxf7 26. Qxe4 Re8 27. Ne7 {Gates,J-Richter,W (2169) ICCF 2017 1/2 (37)}) 16. Qb5 Rc8 (16... Bd7 17. Qe2 Re8 18. Kh1 Rc8 19. c3 dxc3 20. bxc3 Be6 21. Qb5 Rb8 22. Rad1 Bg4 23. Rd2 Bd7 24. Qc5 b6 25. Qf2 Be6 26. h3 Rb7 27. Rdd1 b5 28. Bh6 {Buker,M (2109)-Koen,B (2049) ICCF 2019 1/2 (50)}) 17. c3 dxc3 18. bxc3 b6 {Csiba,T (2159)-Lanzani,P (2227) ICCF 2020 1/2 (30)}) (14. h3 Be6 15. Bf4 Rc8 16. Qe2 Nc4 17. Rab1 Re8 18. Qd3 Qd7 19. Kh2 f5 20. Rfe1 Red8 {0-1 (20) Thau,O (1771)-Lockett,J ICCF 2019}) (14. Qb4 a5 (14... Re8 15. Bf4 a5 16. Qd2 Be6 17. Bg5 Nc4 18. Qf4 Qb8 19. Nf6+ Bxf6 20. Qxf6 Qe5 21. Qxe5 Nxe5 22. Bf6 {Snijders,J (2063)-Price,D (2063) ICCF 2015 1-0 (56)}) 15. Qb5 Bd7 16. Qxb7 Rb8 17. Qa7 Re8 18. a4 Qc8 ( 18... h5 19. Kh1 h4 20. gxh4 Qxh4 21. Bf4 Rxb2 22. Bg3 Qd8 23. Rac1 Nc6 24. Qc5 Nb4 25. Nc7 d3 26. cxd3 Rf8 27. d4 Nd3 28. Qc3 Rxg2 29. Qxd3 Ra2 30. Nd5 { Snijders,J (2123)-Yoshida,A ICCF 2017 0-1 (70)}) 19. Nf6+ Bxf6 20. Rxf6 Qxc2 21. Rf2 Qc6 22. Qxa5 Nd3 23. Rf1 Nxc1 24. Rfxc1 Qf6 25. Rf1 Qe7 {Fengier,D (2276)-Offenborn,H (2301) ICCF 2016 1/2 (33)}) 14... b6 (14... Be6 15. Qb4 d3 16. Qb3 dxc2 17. Qxc2 Rc8 18. Qb3 Qa5 (18... Re8 19. Bd2 Nc4 20. Bc3 Bxd5 21. exd5 Bxc3 22. bxc3 Nd2 23. Qxb7 Re7 24. Qb2 Nxf1 25. Rxf1 Qd6 26. Qb3 Re3 27. Qb7 Rc7 28. Qb8+ Kg7 29. c4 Rc3 {0-1 (29) Musumeci,J-Nemec,Z (2177) ICCF 2020}) 19. Be3 b6 20. Rad1 Rfe8 21. Bd4 Bg4 22. Ra1 Be6 23. Rad1 Bg4 {1/2 (23) Akdag, M (2568)-Lizarzaburu,O (2434) ICCF 2017}) 15. Qb4 Ba6 16. Rd1 Be2 17. Rd2 Bf3 18. Bxf3 Nxf3 19. Rf2 Ne5 20. Bf4 Re8 21. Re1 Rb8 22. Bxe5 Bxe5 {Schmidt,T (2056)-Lukasiewicz,P (2062) ICCF 2019 1/2 (39)}) (11. Rf2 exf4 12. gxf4 Re8 13. Rd2 Nh5 14. Rd3 Bf5 15. Nxd4 cxd4 16. Be3 Qb6 17. Nd5 Qxb2 18. Rb1 Qxc2 19. Rd2 Qc5 20. Rc1 Qxd5 21. exd5 dxe3 22. d6 exd2 {Dam,J (1760)-Tateo,I (1950) ICCF 2016 0-1 (40)}) 11... exf4 12. gxf4 (12. e5 Nh5 13. gxf4 f6 14. Nxd4 cxd4 15. Bd5+ Kh8 16. Qxd4 fxe5 17. fxe5 Rxf1+ 18. Kxf1 Qe7 19. Kg2 Bxe5 20. Qf2 Be6 21. Bf3 Rf8 22. Bh6 Nf4+ {Velker,W (1961)-Mason,I (2300) ICCF 2005 1/2 (59)}) 12... Ng4 (12... Nh5 13. Qf2 Bg4 14. Nxd4 cxd4 15. Nd5 Be6 16. c4 Rc8 17. b3 b5 18. Ba3 Re8 19. Rac1 d3 20. Kh1 bxc4 21. bxc4 Nf6 22. Qd2 Nxe4 23. Bxe4 Rxc4 24. Qxd3 {Jensen,K (2170)-Rudenko,A (2339) ICCF 2015 1/2 (59)}) (12... Be6 13. e5 Nh5 14. Nxd4 cxd4 15. Ne4 f6 16. Nc5 Bc4 17. Nxb7 Qb6 18. Nd6 Bxf1 19. Bxa8 Ba6 20. Qg2 d3+ 21. Kh1 Kh8 22. Qd5 Qf2 {Jensen,K (2147)-Janisch,M (2313) ICCF 2014 1/2 (27)}) 13. e5 Bf5 (13... Be6 14. h3 Nh6 15. Ne4 Nxf3+ 16. Rxf3 Qxd2 17. Bxd2 b6 18. Ra3 Nf5 19. Nf6+ Bxf6 20. Bxa8 Rxa8 21. exf6 Nd4 22. Rd1 Rd8 23. Rxa7 h5 {Rickert,W (2000)-Hrdý,T (2094) ICCF 2013 1/2 (26)}) 14. h3 Nh6 15. Nxd4 cxd4 16. Ne2 d3 17. cxd3 Bxd3 18. Kh2 Rc8 19. Rd1 Qh4 20. Nc3 {Lythgoe,M (2001)-Soares,F (2002) ICCF 2017 0-1 (41)}) (8... b6 9. Ne5 (9. e5 Ne8 (9... Ng4 10. Nc3 Bb7 11. e6 f5 12. h3 Nf6 13. Ng5 d4 14. Nf7 Qc8 15. Nd5 Nxd5 16. Bxd5 Nd8 17. Bxb7 Qxb7 18. Ng5 Rc8 19. Bd2 Bf6 20. h4 c4 21. h5 {Teague, D-Tanase,M (1819) ICCF 2014 1/2 (34)}) 10. Nc3 (10. Bd2 f6 11. exf6 exf6 12. a4 Nd6 13. Nh4 Nf7 14. Qd1 Bb7 15. Nc3 f5 16. Bxd5 Bd4+ 17. Kg2 Bxc3 18. Bxf7+ Rxf7 19. Bxc3 Nd4+ 20. Kh3 g5 21. fxg5 Ne6 {Pisani,C (2139)-Owens,J (2189) ICCF 2016 1-0 (41)}) (10. a3 f6 11. c4 Nc7 12. Nc3 dxc4 13. dxc4 Be6 14. exf6 exf6 15. b3 Na5 16. Rb1 Re8 17. Qf2 Qd7 18. Rd1 Qf7 19. Nh4 Bg4 20. Bxa8 { Dearnley,A (2332)-Brooks,M (2268) ICCF 2012 1/2 (53)}) 10... Nc7 11. Qf2 (11. a3 f6 12. exf6 exf6 13. Bd2 Bg4 14. Qb1 Qd7 15. b4 Rfe8 16. bxc5 bxc5 17. Re1 Rxe1+ 18. Nxe1 Rb8 19. Qa2 Be6 20. Rb1 Re8 21. Na4 Bf8 22. Rb7 Qd8 {Nagel,H (2104)-Packroff,H (2220) ICCF 2015 0-1 (32)}) 11... f6 12. d4 cxd4 13. Nxd4 Nxd4 14. Qxd4 fxe5 15. fxe5 Rxf1+ 16. Bxf1 Qd7 17. Be3 Bb7 18. Bg2 Rf8 19. Rd1 e6 20. Bh3 {Rickert,W (1994)-Steel,A (1945) ICCF 2013 1/2}) (9. Nc3 d4 (9... Nb4 10. Rf2 Ng4 11. Re2 d4 12. Nd1 Bb7 13. a3 Na6 14. b3 Nc7 15. a4 Nf6 16. Nb2 Nfe8 17. g4 e6 18. Qg3 Rb8 19. f5 exf5 20. gxf5 gxf5 21. exf5 {Vestby, A-Stanghelle,A (1943) ICCF 2014 1-0 (34)}) 10. Nd1 e5 11. Nf2 exf4 12. Bxf4 h6 13. c4 dxc3 14. bxc3 g5 15. Be3 Ng4 16. Nxg4 Bxg4 17. Rd1 Qd6 18. h3 Bxf3 19. Rxf3 Rad8 20. Rf5 Be5 {Rickert,W-Bellegotti,G ICCF 2013 0-1 (72)}) 9... Bb7 ( 9... Nd4 10. Na3 dxe4 11. dxe4 Nd7 12. Nxd7 Qxd7 13. Be3 Ba6 14. Rf2 Rad8 15. c3 Nb5 16. Nxb5 Bxb5 17. Rd2 Qc8 18. Rad1 Ba4 19. b3 Bc6 20. e5 Bxg2 21. Kxg2 { Ribés Colom,J (2248)-Guevara i Pijoan,J (2326) ICCF 2018 1/2}) 10. Nxc6 Bxc6 11. e5 Ne8 (11... Ng4 12. h3 Nh6 13. g4 Kh8 14. Nd2 f6 15. e6 Qd6 16. Nf3 d4 17. Nd2 Bxg2 18. Kxg2 f5 19. g5 Ng8 20. Kg3 Rac8 {Owens,J (2097)-Kuuse,K (1995) ICCF 2016 1-0 (56)}) 12. c3 (12. b4 cxb4 13. Qxb4 f6 14. d4 a5 15. Qb3 b5 16. Be3 a4 17. Qb4 Nc7 18. a3 Rb8 {Holmström,J (2155)-Sørensen,M (2204) ICCF 2014 1/2 (33)}) 12... Nc7 13. Be3 Bd7 14. Nd2 Bf5 15. Qe2 Qd7 16. a4 Rfd8 17. Nf3 Rac8 18. Rfd1 a5 19. Rd2 Rb8 20. Qf1 {Mozelius,P (2267)-Makowski,T (2312) ICCF 2016 1/2 (49)}) 9. h3 Qc7 10. Na3 e5 11. fxe5 Nxe5 12. Nxe5 Qxe5 13. Bf4 Qe7 14. Bg5 h6 15. e5 hxg5 16. exf6 Bxf6 17. Qf2 Bg7 18. Rae1 Be6 {Anderson, C-Cacas,A (1647) ICCF 2019 0-1 (45)}) 7... O-O (7... Qb6 8. Qb3 O-O 9. Qxb6 axb6 10. Na3 Bd7 11. Ne5 Bf5 12. Bd2 Rfd8 13. Nb5 Ne8 14. Nf3 Bd7 15. a4 Na5 16. Be3 e6 17. Bf2 Bxb5 18. axb5 Nd6 19. Nd2 {Schmidt,T (2143)-Rangel García,R (2172) ICCF 2016 1/2 (40)}) 8. Na3 (8. Qc2 Qc7 (8... d4 9. Na3 (9. e4 dxe3 10. Na3 (10. Bxe3 Bf5 11. Ne1 c4 12. Be4 cxd3 13. Bxd3 Bh3 14. Ng2 Rc8 15. Qe2 Re8 16. Bc4 e5 17. fxe5 Nxe5 18. Bb5 Re7 19. Qd2 Qa5 20. a4 Rd8 21. Qc2 Neg4 { Schulze,P (2115)-Voveris,S (2405) ICCF 2018 0-1 (26)}) 10... Bf5 11. Ne1 e5 12. Bxe3 exf4 13. Bxf4 Nd5 14. Bc1 Ne5 15. Qb3 Be6 16. Qc2 Ng4 17. Nc4 Qd7 18. a4 Rae8 19. a5 Bf5 20. Qa4 Qd8 {Bobel,P (2272)-Guidoni,M (2202) ICCF 2012 1/2 (46) }) 9... Nd5 10. Bd2 (10. e4 dxe3 11. Re1 Rb8 12. Bxe3 Nxe3 13. Rxe3 b5 14. Rae1 Qb6 15. Ng5 h6 16. Ne4 Be6 17. Nf2 Na5 18. Rxe6 fxe6 19. Ng4 Kh7 20. Nb1 b4 21. Be4 bxc3 {Krstic,L (2003)-Ilyushchenko,Y ICCF 2008 0-1 (32)}) 10... Bg4 11. Rae1 Rb8 (11... Rc8 12. Qb3 Na5 13. Qc2 Qd7 14. c4 Nb4 15. Qb1 Nac6 16. Nc2 Nxc2 17. Qxc2 a5 18. a3 b6 19. Rb1 Rc7 {Liutaia,L (1908)-Borges Medina,J (1885) ICCF 2019 1/2}) (11... Qd7 12. Ng5 Rad8 13. h3 h6 14. Qb3 hxg5 15. hxg4 Qxg4 16. c4 Nb6 17. Qb5 e5 18. fxg5 Qxg3 19. Rf3 Qg4 20. Qxc5 e4 {0-1 (20) Dovrinder,B (2409)-Zeihser,M (2405) ICCF 2016}) 12. Ng5 h6 13. Ne4 b6 14. Nf2 Be6 15. Qc1 Rc8 16. f5 Bxf5 17. Bxh6 Be6 18. Nc2 Nf6 19. c4 Ne5 20. Bf4 { Söderberg,K (2254)-Mäkelä,A (2247) ICCF 2020 0-1 (52)}) (8... Bf5 9. Nh4 Bd7 ( 9... Bg4 10. e4 (10. h3 Bc8 11. e4 dxe4 12. dxe4 e5 13. Na3 Nh5 14. Qf2 exf4 15. gxf4 Qe7 16. e5 Bd7 17. Be3 b6 18. Rad1 Rad8 19. Bf3 Kh8 20. Rfe1 Bh6 21. Ng2 Na5 {Alozy,F (1997)-Flecher,J (1877) ICCF 2010 0-1 (33)}) 10... d4 11. h3 Be6 12. c4 Ne8 13. Nd2 Qc8 14. Kh2 Bd7 15. e5 f6 16. Ne4 fxe5 17. Qe2 Nd8 18. fxe5 Rxf1 19. Qxf1 Bxe5 20. Bg5 Qc7 21. Bxe7 {Bobel,P (2210)-Laffranchise,L (2149) ICCF 2011 1-0 (53)}) 10. e4 dxe4 11. dxe4 Qb6 12. Na3 Rad8 13. h3 e5 14. Be3 exf4 15. gxf4 Nh5 16. Qf2 Rfe8 17. Bxc5 Qa6 18. Rfd1 b6 19. Be3 Na5 20. Kh2 {Jalas,A (1721)-Felkel,S ICCF 2008 1/2 (60)}) (8... Qb6 9. h3 Re8 10. Kh2 e5 11. fxe5 Nxe5 12. Nxe5 Rxe5 13. Bf4 Rh5 14. h4 h6 15. Kg1 g5 16. hxg5 hxg5 17. Be5 Ng4 18. Bxg7 Kxg7 19. e4 Bd7 20. Na3 {Krstic,L (2003)-Zejewski,P ICCF 2008 0-1}) 9. e4 dxe4 10. dxe4 Rd8 11. Na3 a6 12. Be3 b6 13. Nc4 Bb7 14. f5 Ng4 15. Bf4 Nge5 16. Nfxe5 Nxe5 17. fxg6 hxg6 18. Qb3 b5 19. Nxe5 Bxe5 {Jalas,A (1721) -Gaspar,F (1728) ICCF 2008 1-0}) (8. Qe1 Re8 (8... Qb6 9. h3 (9. e3 Bf5 10. Ne5 Nxe5 11. fxe5 Nd7 12. d4 Bd3 13. Rf2 e6 14. Nd2 f6 15. exf6 Rxf6 16. Rxf6 Bxf6 17. Nf3 Rf8 18. Qd1 Qa6 19. Bf1 Bxf1 20. Qxf1 Qc6 {Boucher,B (1763)-Blondel,F (1837) ICCF 2020 0-1 (33)}) (9. Kh1 Rd8 (9... Re8 10. e4 (10. Ne5 Rd8 (10... Nxe5 11. fxe5 Ng4 12. Bxd5 Nxe5 13. Bg2 Bd7 14. Qf2 f5 15. Nd2 Rac8 16. h3 Bc6 17. a4 Red8 18. a5 Bxg2+ 19. Kxg2 Qc6+ 20. Nf3 c4 21. d4 Nf7 22. Kg1 {Beyer Lecaros,A (1996)-De la Calle,I (2240) ICCF 2015 1/2 (25)}) 11. Nxc6 bxc6 12. Nd2 Rb8 13. e4 c4 14. e5 Ng4 15. h3 Ne3 16. Nxc4 Nxc4 17. dxc4 dxc4 18. Rf2 Rd3 19. Kh2 Bf5 20. Re2 h5 21. Be3 Qc7 {Schmidt,T (2143)-Lichte,M (2160) ICCF 2017 1/2 (29)}) 10... dxe4 11. dxe4 e5 12. f5 gxf5 13. Nh4 Nxe4 14. g4 Nd6 15. Nxf5 Nxf5 16. gxf5 f6 17. Be4 Nd8 18. Qh4 Bd7 19. Rg1 Rf8 20. Bh6 Rf7 21. Nd2 { Bruce,R (2123)-Ferreira,L (1892) ICCF 2020 1-0}) 10. Na3 Bf5 (10... a6 11. e4 dxe4 12. dxe4 Qc7 13. e5 Nd5 14. Nc4 Bf5 15. Ng5 Bd3 16. Nd6 exd6 17. Bxd5 dxe5 18. Bxf7+ Kh8 19. Be6 Rf8 20. Rf3 Rad8 21. Nxh7 Kxh7 22. g4 {Veen,K (2176) -Hamann,H (2329) ICCF 2007 1/2 (33)}) (10... Re8 11. Nc2 e5 12. Nxe5 Nxe5 13. fxe5 Rxe5 14. Bf4 Rh5 15. Ne3 d4 16. Nc4 Qd8 17. cxd4 cxd4 18. Bf3 Ng4 19. Kg1 Rh3 20. Bxg4 Bxg4 21. Be5 f6 22. Rf4 {Koskinen,E (2278)-Fagerström,M (2286) ICCF 2017 1/2 (40)}) 11. h3 Rac8 12. g4 Bd7 13. Qh4 e6 14. Rb1 Qa6 15. Be3 d4 16. Bd2 b5 17. Rfc1 Be8 18. Qe1 dxc3 19. Bxc3 Nb4 20. Bxb4 {Korman,J (1856) -Carapinha,F (2264) ICCF 2011 0-1 (51)}) (9. Nbd2 Ng4 {Taner,H (2358)-Öztürk,S (2036) ICCF 2014} 10. e4 d4 11. Nc4 Qa6 12. a4 Be6 13. h3 Bxc4 14. dxc4 Nh6 15. g4 Qxc4 16. g5 dxc3 17. Rf2 Rfd8 18. gxh6 cxb2 19. Bxb2 Bxh6 20. Bf1 Qb3 21. Qc1 Nd4 {Snijders,J (2079)-Salonen,J (2150) ICCF 2015 1-0 (58)}) (9. Na3 Rd8 ( 9... Bd7 10. h3 Rac8 11. Nc2 d4 12. c4 Qc7 13. Rb1 a5 14. b3 Nh5 15. a3 Ra8 16. b4 axb4 17. axb4 Ra2 18. Rb2 Rxb2 19. Bxb2 cxb4 {Kaminski,J (1988)-Husák,J (2050) ICCF 2012 0-1 (63)}) (9... c4+ 10. d4 Bf5 11. h3 Rae8 12. Kh2 Na5 13. g4 Be4 14. Qf2 Qc7 15. Nd2 Bxg2 16. Qxg2 e6 17. Nc2 b6 18. e4 Nxe4 19. Nxe4 dxe4 20. Qxe4 {Zhdanenia,K (2299)-Banshchikov,V (1978) ICCF 2017 1/2 (60)}) 10. h3 Be6 11. Ng5 Bd7 12. e4 dxe4 13. dxe4 h6 14. Nf3 Qc7 15. e5 Nd5 16. Nd2 Bc8 17. Qf2 b6 18. Ndc4 Rb8 19. Rd1 Be6 20. g4 b5 {Grabove,M-Owens,J (1355) ICCF 2014 1/2 (27)}) 9... Ne8 (9... Rd8 10. Nbd2 c4+ 11. d4 Qc7 12. Ne5 e6 13. e3 a5 14. b3 cxb3 15. axb3 b5 16. Bb2 Bb7 17. Qe2 Nd7 18. Ndf3 Ncxe5 19. fxe5 f6 20. exf6 Nxf6 {Schmidt,T (2143)-Rodríguez Fraga,Y (2101) ICCF 2017 1/2 (32)}) 10. Nbd2 Qc7 11. e4 dxe4 12. dxe4 b6 13. e5 Bb7 14. Nc4 Rd8 15. Be3 Ba6 16. b3 Bxc4 17. bxc4 Na5 18. Qe2 Qc6 19. Nd2 Qa4 20. h4 {Beyer Lecaros,A (2028)-Popov,V (2087) ICCF 2016 1/2 (34)}) (8... b6 9. Na3 (9. e4 dxe4 10. dxe4 Ba6 11. Rf2 Qc7 ( 11... e5 12. Na3 (12. f5 Qc8 13. Na3 Bd3 14. fxg6 (14. Nh4 c4 15. Bg5 Qb7 16. Bf3 b5 17. Nc2 Ne8 18. Be3 Nd6 19. Bc5 Rfd8 20. Qe3 Ne8 21. Ne1 Nf6 22. Nxd3 Rxd3 23. Qe2 Bh6 24. Ng2 b4 25. cxb4 Nd4 {Price,B (2124)-Ruiz-Jarabo,F (2192) ICCF 2011 0-1 (34)}) 14... fxg6 15. Ng5 c4 16. Nc2 h6 17. Bh3 Ng4 18. Nf3 h5 19. Ne3 Na5 20. Ng5 Rxf2 21. Bxg4 hxg4 22. Qxf2 Qd7 23. Qe1 Bf6 {Egan,M (2281) -Morley,P (2327) ICCF 2012 0-1 (56)}) 12... Qe8 13. Bf1 Bxf1 14. Rxf1 exf4 15. e5 Ng4 16. gxf4 Rd8 (16... f6 17. h3 Nh6 18. exf6 Bxf6 19. Qxe8 Raxe8 20. Bd2 Nf5 21. Rae1 Ng3 22. Rxe8 Rxe8 23. Re1 Rxe1+ 24. Nxe1 Ne4 25. Bc1 Nd6 {Taner,H (2358)-Koseoglu,O (1969) ICCF 2014 (25)}) 17. Qe2 Qd7 18. Bd2 f6 19. Qc4+ Kh8 20. e6 Qc8 21. Rae1 Rfe8 22. b4 Bf8 23. b5 {Caponi,S-Geryk,M (1646) ICCF 2013 0-1 (30)}) 12. b3 Bd3 13. Nbd2 Ng4 14. e5 e6 15. Ne4 Bxe4 16. Qxe4 Nxf2 17. Kxf2 Rad8 18. Nd2 Nxe5 19. fxe5 Bxe5 20. Nf3 Bxc3 {Grapenfalk,H-Olsen,S (1684) ICCF 2015 1-0 (33)}) (9. Ne5 Bb7 10. Nxc6 Bxc6 11. Nd2 Re8 12. Nf3 d4 13. Bd2 Rc8 14. Rc1 e6 15. h3 Nd7 16. Qf2 Qc7 17. Kh2 e5 18. fxe5 dxc3 19. Bxc3 Nxe5 { Andreassen,P (2230)-Dorosiev,B (2296) ICCF 2015 0-1 (28)}) 9... Bb7 (9... Ba6 10. Rb1 (10. Bd2 Qc7 (10... e6 11. Rb1 Rc8 12. b4 cxb4 13. cxb4 Ne7 14. Qd1 d4 15. Rc1 Nfd5 16. Ne5 Bb7 17. Rxc8 Qxc8 18. Qa1 Nf5 19. Rc1 Qd8 20. Be4 g5 21. Bxf5 Nc3 22. Bg4 {Bito,L (2147)-Snijders,J (2138) ICCF 2017 1/2 (55)}) 11. b4 Nb8 12. Rc1 Nbd7 13. c4 Ng4 14. d4 cxd4 15. cxd5 Qd6 16. Nc4 Qxd5 17. Ng5 Qb5 18. Qd1 Rac8 19. a4 Qxc4 20. Rxc4 Bxc4 21. Bb7 Rc7 {Heß,H (2329)-Aninis,T (2305) ICCF 2008 1/2 (39)}) (10. Nc2 Rc8 11. Rb1 Re8 12. b4 cxb4 13. cxb4 Bb7 14. b5 Na5 15. Ncd4 Nd7 16. f5 e5 17. fxe6 fxe6 18. Bh3 Nf8 19. Ba3 Qd7 20. Bxf8 {Zaugg,B (1974)-Harman,K (1645) ICCF 2015 1-0 (29)}) 10... Nd7 (10... Re8 11. b4 cxb4 12. cxb4 Bb7 13. b5 Nb8 14. Qb4 a6 15. Bb2 axb5 16. Nxb5 Rxa2 17. Qb3 Ra5 18. Bc3 Ra8 19. Rfc1 Na6 20. Qb2 Nc5 21. Be5 Rf8 22. Nc7 {Veen,K (2113) -Kuna,H (2235) ICCF 2006 1/2 (27)}) 11. b3 e6 12. Bb2 Qe7 13. c4 Bxb2 14. Rxb2 Rad8 15. e4 dxc4 16. dxc4 e5 17. f5 Nf6 18. h3 Bb7 19. Qe3 Nd4 20. Nh2 gxf5 21. exf5 {Zhdanenia,K (2300)-Bolignano,G (2307) ICCF 2018 1-0 (59)}) (9... Qd7 10. Rb1 (10. e4 dxe4 11. dxe4 Ba6 12. Rf2 e5 13. Rd2 Qc7 14. Rd1 Rae8 15. b4 cxb4 16. cxb4 Qe7 17. Bb2 exf4 18. e5 Ng4 19. gxf4 Qxb4 20. Qxb4 Nxb4 21. Rd7 Ne3 { Ainsborough,G (1623)-Hoggan,J ICCF 2020 0-1 (33)}) 10... a5 11. Bd2 Ba6 12. c4 Rad8 13. b3 Nb4 14. Ne5 Qe6 15. Bxb4 axb4 16. Nc2 dxc4 17. bxc4 Nd7 18. Bd5 Qd6 19. a3 Nxe5 20. fxe5 Qxe5 21. axb4 {Schmidt,T (2143)-Sherwood,A (2253) ICCF 2017 1/2 (54)}) (9... Re8 10. e4 dxe4 11. dxe4 Ba6 12. e5 Bxf1 13. e6 Bxg2 14. exf7+ Kh8 15. fxe8=Q+ Nxe8 16. Kxg2 Qd5 17. Qd2 Qe4 18. Qc2 {1/2 (18) Zaugg,B (1974)-Kuuse,K (1802) ICCF 2015}) (9... Qc7 10. Rb1 a6 11. Nc2 Bb7 12. b4 c4 13. dxc4 dxc4 14. e4 Nxe4 15. Qxe4 Nxb4 16. Qe2 Nxa2 17. Qe3 Be4 18. Nfd4 Nxc3 19. Bxe4 Nxb1 20. Bxa8 Rxa8 21. f5 {Veen,K (2176)-Urbánek,S (2200) ICCF 2007 1/ 2 (25)}) 10. e4 (10. h3 Re8 (10... Qd7 11. Rb1 a5 12. Bd2 Ne8 13. c4 d4 14. Nb5 Nd6 15. a4 Rae8 16. g4 f6 17. Qg3 Nd8 18. f5 N8f7 19. fxg6 hxg6 20. Rf2 e5 21. Nh4 Kh7 22. Bxb7 {Rocco Ruiz,J (2249)-Girardot,P (2258) ICCF 2008 1-0 (38)}) 11. Ne5 Nxe5 12. fxe5 Nd7 13. Qf2 Nxe5 14. d4 cxd4 15. cxd4 Nd7 16. Qxf7+ Kh8 17. Be3 Rc8 18. Qe6 {1-0 (18) Schmidt,T (2143)-Wan Han Xuan,T ICCF 2017}) (10. Bd2 Qd7 11. Rd1 Rad8 12. b4 e6 13. Nc2 Qc7 14. Rb1 Rfe8 15. bxc5 bxc5 16. Qf2 Ne4 17. dxe4 dxe4 18. Be3 exf3 19. Bxf3 Na5 20. Bxc5 Rd2 21. Ne1 {Schmidt,T (2143)-Rúnarsson,G (2142) ICCF 2017 0-1 (54)}) 10... dxe4 11. dxe4 Ba6 12. c4 ( 12. Rf2 e5 13. f5 h6 14. h3 Bd3 15. Nd2 Na5 16. Qe3 Rc8 17. b3 Rc7 18. Bb2 Rd7 19. Re1 g5 20. Bf3 Re8 21. c4 a6 22. Nab1 b5 23. Rc1 b4 {Doppelhammer,H (2288) -Krimbacher,W (2250) ICCF 2014 1/2 (38)}) 12... e5 13. Bd2 Qe7 14. Rd1 Nd7 ( 14... Rae8 15. fxe5 Ng4 16. Bg5 Qe6 17. Rd6 Qc8 18. Bf6 Ncxe5 19. Bxg7 Kxg7 20. Nxe5 Nxe5 21. b3 Qb8 22. Qd2 Rd8 23. Rd1 Rxd6 24. Qxd6 Qxd6 25. Rxd6 Re8 26. Nb1 {Sukhanitskij,S (2172)-Prokopenko,A (2174) ICCF 2018 1/2 (26)}) 15. b3 Rad8 16. f5 Nd4 17. Nb1 b5 18. cxb5 Bxb5 19. Rf2 Bc6 20. Na3 {Veen,K (2176) -Dziedzic,A (2063) ICCF 2007 1/2 (25)}) 9. Ne5 (9. Qf2 Qd6 10. h3 e5 11. fxe5 Nxe5 12. Nxe5 Qxe5 13. Na3 Qxe2 {0-1 (13) Jensen,K (2163)-Anderson,D (2166) ICCF 2014}) (9. e4 dxe4 10. dxe4 e5 11. fxe5 Ng4 12. Bg5 (12. Na3 Ncxe5 13. Nxe5 Nxe5 14. Qf2 Qe7 15. Bf4 Be6 16. Bxe5 Bxe5 17. Nc2 Rad8 18. Ne3 Bg7 19. Nd5 Bxd5 20. exd5 Qe3 21. Qxe3 Rxe3 22. Rad1 b6 23. d6 Re6 {Ainsborough,G (1616)-Tanner,G ICCF 2019 1/2 (40)}) 12... Qb6 13. Qe2 Ncxe5 14. Nxe5 Nxe5 15. Na3 Bg4 16. Qb5 Qc7 17. Bf4 a6 18. Qb3 Be2 19. Rf2 c4 20. Qc2 Bd3 {Teague, D-Clancey,J (1834) ICCF 2014 0-1 (28)}) 9... Qc7 10. Nxc6 bxc6 11. Nd2 e5 12. fxe5 Qxe5 13. Qf2 Qxe2 14. Qxe2 Rxe2 15. Nb3 Nd7 16. Rf2 Rxf2 17. Kxf2 a5 18. a4 Ba6 19. Bf1 Bxd3 {Kaminski,J (1959)-Lukasevicius,P (2022) ICCF 2020 0-1 (46) }) (8. Ne5 Nxe5 (8... Re8 9. d4 Qb6 10. e3 Be6 11. Qb3 Qc7 12. Nd2 Rac8 13. Qb5 b6 14. e4 Nxe4 15. Nxe4 Nxe5 16. dxe5 dxe4 17. Bxe4 Red8 18. Qe2 Bd5 19. Bxd5 Rxd5 20. c4 {Oren,I (2314)-Ruggeri Laderchi,G (2510) ICCF 2008 1/2 (40)}) (8... Qc7 9. Nxc6 Qxc6 10. e4 Be6 11. f5 gxf5 12. exf5 Bd7 13. g4 h6 14. h4 Nh7 15. g5 hxg5 16. hxg5 Qd6 17. Qg4 Bb5 18. Rf3 Bd7 19. Na3 Rac8 20. Bd2 {Jensen,K (2147)-Grout,S (2278) ICCF 2014 1-0 (26)}) 9. fxe5 Ne8 (9... Ng4 10. d4 h5 11. Bf4 Be6 12. e3 Rc8 13. Nd2 Qd7 14. h3 Nh6 15. Kh2 b6 16. Nf3 f6 17. Bxh6 Bxh6 18. Nh4 Kh7 19. Qd3 Qe8 20. Rae1 f5 21. Bf3 {Martín Molinero,R (2429)-Ribés Colom,J (2248) ICCF 2018 1/2 (33)}) 10. d4 (10. Bf4 Qb6 11. Qb3 Bg4 12. e4 dxe4 13. Bxe4 Nc7 14. Nd2 Ne6 15. Bxb7 Rad8 16. Nc4 Qc7 17. Be4 Be2 18. Rf2 Bxd3 19. Bxd3 Rxd3 20. Qc2 Qd7 21. Raf1 Qd5 {Thau,O (1718)-Heiermann,L (1916) ICCF 2020 0-1 (37)}) 10... Be6 11. Be3 (11. dxc5 Bxe5 12. Be3 Bg7 13. Bd4 f6 14. Qb3 Rb8 15. Na3 Nc7 16. Bf2 Bf7 17. Rad1 Qc8 18. Qa4 a6 19. c4 Rd8 20. cxd5 Nxd5 21. e4 b5 22. Qa5 Nc7 {Perry,D (2368)-Castellano,A (2323) ICCF 2005 1-0 (58)}) 11... f6 12. exf6 Nxf6 13. dxc5 Ng4 14. Bd4 Rxf1+ 15. Bxf1 Bh6 16. Na3 Ne3 17. Qd2 Ng4 18. e3 Bf5 19. h3 e5 {Oren,I (2314)-Moreno Carretero,C (2405) ICCF 2008 1/ 2 (48)}) (8. a4 Qb6 (8... d4 9. Bd2 Nd5 10. c4 Ndb4 11. Na3 h6 12. Nc2 Nxc2 13. Qxc2 a5 14. Ra3 Nb4 15. Qd1 Qc7 16. Ne5 Bxe5 17. fxe5 g5 18. e4 Qxe5 19. Rf2 Ra6 {Kaminski,J (2011)-Helmer,J (2045) ICCF 2012 1/2 (52)}) 9. Na3 c4+ 10. d4 Bf5 11. Ne5 Na5 12. Nc2 Rad8 13. Ne3 Be4 14. Ra3 Bxg2 15. Kxg2 e6 16. N3g4 Ne4 17. Qc2 f6 18. Nf3 Nb3 19. Nd2 Nexd2 {Mitel,C-Roubaud,D ICCF 2009 0-1}) (8. d4 Qb6 9. Ne5 cxd4 10. cxd4 Qxd4+ 11. Kh1 Qxd1 12. Rxd1 Bf5 13. a3 e6 14. Be3 Nxe5 15. fxe5 Ng4 16. Bg1 Nxe5 17. Nc3 Nc4 18. Ra2 Bc2 19. Rc1 Bb3 {Mayes,F (1606) -Abad,J ICCF 2012 1/2 (53)}) 8... Rb8 (8... Re8 9. Ne5 (9. Qc2 h6 (9... e5 10. fxe5 Nxe5 11. Nxe5 Rxe5 12. Bf4 {1-0 (12) Martín Molinero,R (2429)-Díaz Félez, F (1629) ICCF 2018} Re7 13. Bg5 Re5 14. Qd2 h6 15. Bxh6 Bxh6 16. Qxh6 Rxe2 17. Qf4 Bf5 18. Nb5 Rxb2 19. Nd6 Be6 20. Qxf6 Qxd6 21. Rf4 {Arnold,G (2292)-Glaser, K (2288) ICCF 2019 1/2 (31)}) (9... Qb6 10. Qb3 Qc7 11. Qc2 c4 (11... Bf5 12. Nh4 Rad8 13. Nxf5 gxf5 14. Be3 d4 15. Bd2 a6 16. Rad1 dxc3 17. Bxc6 Qxc6 18. Bxc3 Ng4 19. Qd2 Qh6 20. h4 Bd4+ 21. Bxd4 cxd4 22. Nc2 Qb6 23. Rb1 {Arnold,G (2254)-Lundberg,C (2215) ICCF 2016 0-1 (51)}) 12. dxc4 Bf5 13. Qa4 e6 14. Nb5 Qd7 15. Qd1 Rad8 16. cxd5 exd5 17. Nbd4 Bh3 18. Qd3 Nxd4 19. Qxd4 Bxg2 { 0-1 (19) Arnold,G (2248)-Caron,S (2257) ICCF 2018}) 10. e4 e5 11. Nxe5 Nxe5 12. fxe5 Rxe5 13. Bf4 (13. Be3 d4 14. cxd4 cxd4 15. Bf4 Re7 16. Nc4 (16. Nb5 Ng4 17. Rac1 Ne3 18. Bxe3 dxe3 19. Nc7 Rb8 20. Nd5 Re8 21. Nxe3 Bd4 22. Rce1 Be6 23. b3 Rc8 24. Qe2 h5 25. Kh1 h4 26. g4 Rc3 27. Rd1 Qb6 {Ragnarsson,J (2125) -Burg,J (2273) ICCF 2017 0-1 (61)}) 16... Be6 17. Bd6 Rd7 18. e5 Ng4 19. Bf3 Rc8 20. Bxg4 Bxg4 21. a4 {Arnold,G (2263)-Antonov,V (2362) ICCF 2017 1/2 (66)}) 13... Re7 14. Nb5 a6 15. Nd6 g5 16. Nxc8 Rxc8 17. Be3 Qc7 18. Rf5 Ng4 19. Bf2 d4 20. Rd1 Nxf2 {Arnold,G (2302)-Moriarty,A (2295) ICCF 2020 1-0 (31)}) (9. Nh4 h6 (9... e5 10. f5 Ne7 11. fxg6 fxg6 12. Bg5 {1-0 (12) Thommen,J (1908)-Thor,Z ICCF 2009}) (9... b6 10. e4 dxe4 11. dxe4 e5 12. Qa4 Na5 13. f5 Ba6 14. Nb5 Qd7 15. c4 Bxb5 16. cxb5 a6 17. Bg5 axb5 18. Qd1 Qc6 19. Qf3 Rf8 20. Rf2 b4 { Müllhaupt,P (2027)-Haller,P (2179) ICCF 2017 0-1 (34)}) 10. e4 (10. Be3 d4 11. Bd2 e5 12. fxe5 Nxe5 13. Qb3 Rb8 14. Nc2 dxc3 15. Bxc3 b5 16. Ne3 b4 17. Bd2 c4 18. Nxc4 Nxc4 19. Qxc4 Rxe2 20. Bf4 Be6 21. Qa6 Qd4+ {Thau,O (1704)-Deakin,C ICCF 2020 0-1}) 10... e5 11. exd5 Nxd5 12. f5 (12. Nb5 Nf6 13. fxe5 Nxe5 14. d4 Bg4 15. Qc2 Nd3 16. dxc5 Ne1 17. Qb3 Bd1 18. Qb4 Nxg2 19. Nxg2 Be2 20. Re1 a5 21. Qa4 Qd7 22. c4 Bf3 23. Bf4 Bxg2 {Thau,O (1704)-Nemec,Z (2177) ICCF 2020 0-1 (28)}) 12... g5 13. Nf3 Nce7 14. Qb3 Rb8 15. Bd2 Bxf5 (15... b5 16. Rae1 Bxf5 17. Nxe5 Be6 18. Qd1 Qd6 19. Ng4 f5 20. Ne3 Nc7 21. d4 {Arnold,G (2247) -Lundberg,C (2131) ICCF 2015 0-1 (63)}) 16. Nxg5 hxg5 17. Bxd5 Qxd5 18. Qxd5 Nxd5 19. Rxf5 f6 20. Kf1 (20. Nb5 a6 {Jean,L (1902)-Boitte,B (1510) ICCF 2019 1/2 (43)}) 20... Kh7 {Jensen,K (2184)-Kaczmarek,R (2145) ICCF 2020 1/2 (53)}) 9... Bf5 (9... Qc7 10. Nxc6 Qxc6 (10... bxc6 11. e4 Rb8 12. e5 Ng4 13. h3 Nh6 14. Qe2 Nf5 15. Qf2 h5 16. Nc2 Rd8 17. b3 c4 18. bxc4 dxc4 19. d4 Qa5 20. Bd2 { Dam,J (2075)-Berger,B (1584) ICCF 2019 1/2 (43)}) 11. Nc4 (11. c4 b6 12. cxd5 Nxd5 13. e4 Bd4+ 14. Kh1 Nb4 15. f5 Ba6 16. Nc4 Nxd3 17. Qxd3 Qb5 18. fxg6 hxg6 19. b3 Bxa1 20. e5 Rad8 21. Qb1 Bd4 22. e6 Rf8 {Dam,J (2075)-Vries,R ICCF 2019 (41)}) 11... Be6 12. Ne5 Qc7 13. e4 Rad8 14. Qc2 c4 15. dxc4 dxe4 16. Be3 Bxc4 17. Nxc4 Qxc4 18. Bxa7 e5 19. fxe5 Rxe5 20. Rfd1 Rxd1+ {Aycock,A (1848)-Klewe, W (2216) ICCF 2016 0-1 (36)}) 10. h3 h5 11. Qb3 Rb8 12. e4 c4 13. Qd1 dxe4 14. dxe4 Bxe4 15. Qxd8 Rexd8 16. Naxc4 Rbc8 17. a4 Nb8 18. Na5 Rc7 19. Re1 Bxg2 20. Kxg2 {Renard,S (2317)-Deakin,C ICCF 2020 1/2 (50)}) (8... a6 9. Qe1 (9. Nh4 Qc7 (9... e5 10. f5 Ne7 (10... e4 11. Bg5 exd3 12. exd3 Qd6 13. Qd2 Bd7 14. Bf4 Qe7 15. Rae1 Qd8 16. Bd6 Re8 17. Rxe8+ Nxe8 18. Bxc5 Bf6 19. Bxd5 Bxh4 20. fxg6 hxg6 21. Rxf7 {1-0 (21) Renard,S-Woodhouse,S (1677) ICCF 2015}) 11. e4 (11. fxg6 fxg6 12. c4 d4 13. Nc2 Nc6 14. a3 a5 15. Rb1 a4 16. Bg5 Bg4 17. b4 axb3 18. Rxb3 Qc7 19. Qb1 Ra7 20. Rf2 Bc8 21. Qf1 Qd6 22. Rb5 Nd8 {Arnold,G (2210) -Rolle,H (2258) ICCF 2015 1/2 (30)}) 11... c4 12. exd5 cxd3 13. Bg5 gxf5 14. Qxd3 e4 15. Qd2 Nfxd5 16. Qf2 Be6 17. Rad1 Qc7 18. Nc2 Rad8 19. Nd4 h6 20. Bxe7 {Arnold,G (2215)-Schmidt,K (2151) ICCF 2017 1/2}) (9... Bg4 10. h3 Bd7 (10... Bc8 11. Qe1 e5 12. f5 Ne7 13. e4 c4 14. dxc4 dxe4 15. g4 h6 16. fxg6 fxg6 17. g5 hxg5 18. Bxg5 Bf5 19. Kh2 Qc7 20. Rd1 Rae8 21. b4 e3 22. c5 {Vajas,S (1943) -Lagergren,H (1981) ICCF 2018 1/2 (52)}) (10... Be6 11. f5 Bd7 12. g4 e6 13. e4 d4 14. g5 exf5 15. gxf6 Bxf6 16. Nf3 dxc3 17. bxc3 Bxc3 18. Bg5 Bf6 19. Bxf6 Qxf6 20. Qc2 fxe4 21. dxe4 Nd4 22. Qd1 {Arnold,G (2247)-Zieba,Z (2321) ICCF 2015 1/2 (40)}) 11. e4 dxe4 12. dxe4 e5 13. f5 Na5 14. g4 Qc7 15. g5 Nh5 16. f6 Bh8 17. Nc2 Bb5 18. Ne3 Bxf1 19. Nd5 Rfd8 20. Qxf1 Qd6 21. Qe2 {Arnold,G (2210) -Flecher,J (1981) ICCF 2015 1-0 (32)}) (9... d4 10. e4 Bg4 11. Qe1 dxc3 12. bxc3 Rc8 13. e5 Nd5 14. Nc2 b5 15. Bb2 g5 16. fxg5 Nxe5 17. Qe4 Nb6 18. d4 cxd4 19. cxd4 Ng6 20. Ne3 Nxh4 21. gxh4 {Villeneuve,R (2143)-Boege,H (2168) ICCF 2019 1/2 (39)}) (9... b5 10. e4 dxe4 11. dxe4 Qc7 12. e5 Nd7 13. Be3 Bb7 14. Qe2 Na5 15. Bxb7 Nxb7 16. c4 b4 17. Nc2 a5 18. Rad1 a4 19. Nf3 Qc6 20. Bf2 f5 21. h4 {Arnold,G (2236)-Carlier,E (2242) ICCF 2017 1-0 (51)}) (9... Qb6 10. e4 dxe4 11. dxe4 Qa7 12. e5 Rd8 13. Qe2 Bg4 14. Qf2 Nd7 15. h3 Be6 16. g4 Ncxe5 17. fxe5 Nxe5 18. Be4 Rac8 19. Ng2 b6 20. Bg5 h6 21. Bh4 {Arnold,G (2251)-Haak, G (2168) ICCF 2012 1/2 (45)}) 10. e4 dxe4 11. dxe4 Rd8 12. Qe2 Bg4 13. Qf2 Rac8 14. e5 Nd7 15. Nc2 Be6 16. Be3 Bc4 17. Rfd1 Be6 18. Nf3 b5 19. Ng5 Bf5 20. h3 h6 {Knöppel,B (2057)-Prawira,B (1948) ICCF 2017 1-0 (46)}) (9. Ne5 Nxe5 (9... Qc7 10. e4 dxe4 11. Nxc6 Qxc6 12. dxe4 Nxe4 13. Re1 f5 14. Nc4 Be6 15. Nd2 Bd5 16. Nxe4 fxe4 17. Qc2 c4 18. Bxe4 Rad8 19. Bg2 Rf5 20. Bh3 Rf7 21. Bg2 { Arnold,G (2282)-Ledezma Álvarez,J (2293) ICCF 2010 1/2 (30)}) 10. fxe5 Ng4 11. d4 cxd4 12. cxd4 Qb6 13. e3 Be6 14. Nb1 f6 15. exf6 Nxf6 16. Nc3 Qd6 17. Bd2 Rac8 18. a4 Bf5 19. a5 e6 20. Rc1 Qd7 {Arnold,G (2268)-Opitz,P (2087) ICCF 2011 1/2 (38)}) (9. Nc2 Qd6 10. Qe1 (10. Bd2 Bd7 11. Ne3 b5 12. a4 Rfb8 13. Qc2 d4 14. Nd1 dxc3 15. bxc3 b4 16. Ne3 Ra7 17. Rab1 a5 18. Rfc1 Rc8 19. Nc4 Qc7 20. e4 h6 {Veen,K (2176)-Evans,G (2280) ICCF 2007 1/2 (42)}) 10... Rd8 11. h3 h6 12. Qf2 b6 13. a4 Qc7 14. b4 Nd7 15. Rb1 e6 16. g4 a5 17. bxc5 Nxc5 18. Bd2 Nxa4 19. Ncd4 Nxd4 20. cxd4 Bd7 {Nemec,Z (2190)-Neijhof,R (2111) ICCF 2020 1-0 (44)}) 9... Qc7 (9... d4 10. cxd4 (10. Bd2 Be6 11. e3 dxc3 12. Bxc3 b5 13. Ng5 Bd7 14. Ne4 Nxe4 15. Bxg7 Kxg7 16. Bxe4 f6 17. Rc1 Qb6 18. Qc3 c4 19. Nc2 cxd3 20. Qxd3 {Arnold,G (2292)-Schneider,H (2258) ICCF 2019 1/2 (37)}) 10... cxd4 11. Nh4 Be6 12. Bxc6 bxc6 13. f5 Bd5 14. Qb4 e5 15. Nc4 e4 16. Bg5 h6 17. Bxf6 Bxf6 18. Ng2 Rb8 19. Qa4 g5 20. b3 Qe7 {Arnold,G (2233)-Selle,U (1973) ICCF 2013 0-1 (56)}) (9... b5 10. Nc2 Bb7 11. e4 dxe4 12. dxe4 e5 13. fxe5 Ng4 14. Be3 Nxe3 15. Nxe3 Nxe5 16. Nxe5 {1/2 (16) Arnold,G (2224)-Bennett,P (2277) ICCF 2012}) (9... Bf5 10. Ng5 d4 11. e4 dxe3 12. Ne4 Rc8 13. Bxe3 b6 14. Qe2 Nd5 15. Bf2 Qc7 16. Nc4 Rfd8 17. a4 a5 18. Rad1 h5 19. h3 e5 20. fxe5 Nxe5 21. Na3 {Arnold,G (2226)-Benes,J (1974) ICCF 2011 1/2 (38)}) 10. e4 dxe4 11. dxe4 Be6 (11... Rd8 12. e5 (12. f5 gxf5 13. Bf4 e5 14. Bg5 f4 (14... h6 15. Bxf6 Bxf6 16. exf5 Ne7 17. Nc4 b5 18. Ncxe5 Ra7 19. Ng4 Bg7 20. Nh4 h5 21. Ne3 { Arnold,G (2233)-Dzenis,J (2090) ICCF 2013 1-0 (71)}) 15. gxf4 h6 16. Bxf6 Bxf6 17. f5 b5 18. Nc2 Bg7 19. Ne3 f6 20. Nd5 Qf7 21. Qf2 c4 22. Rad1 Qa7 23. Nh4 Kh7 {Arnold,G (2233)-Giménez,E (2262) ICCF 2013 1-0 (36)}) 12... Nd5 13. Ng5 h6 14. Ne4 b6 15. Qe2 Be6 16. Nc4 Ra7 17. a4 (17. Rd1 Qb8 18. b3 Rad7 19. Bb2 b5 20. Nxc5 bxc4 21. Nxd7 Rxd7 22. bxc4 Nb6 23. Bxc6 Rxd1+ 24. Rxd1 Nxc4 25. Rd4 Qxb2 26. Qxb2 Nxb2 27. Bd5 Bf5 28. Rb4 Nd1 {Arnold,G (2268)-Ledezma Álvarez,J (2275) ICCF 2011 1-0 (59)}) 17... Rb7 18. a5 b5 19. Ne3 Nxa5 20. Nd6 Nxc3 21. bxc3 {Dam,J (2028)-Meller,E (1825) ICCF 2019 1-0 (26)}) 12. e5 Ne8 13. Be3 Rc8 14. Qf2 b6 15. b4 Nb8 16. bxc5 bxc5 17. Ng5 Bf5 18. Rfd1 h6 19. Ne4 Bxe4 20. Bxe4 {Anderson,C-Cacas,A (1660) ICCF 2019 1-0}) (8... Qb6 9. Qb3 (9. Kh1 Rd8 10. Rb1 h6 11. Bd2 Be6 12. Nc2 d4 13. c4 a5 14. h3 Nb4 15. a3 Nxc2 16. Qxc2 Qc7 17. Qd1 Bd7 18. Qe1 Bc6 19. b4 axb4 20. axb4 cxb4 {Schmidt,T (2136)-Neuburger, E ICCF 2017 1/2 (59)}) 9... Qc7 (9... Qxb3 10. axb3 Rd8 11. Nc2 Ne8 12. Be3 d4 13. cxd4 cxd4 14. Bd2 Nd6 15. Nb4 Bd7 16. Rfc1 Rdc8 17. Ng5 h6 18. Ne4 Nxe4 19. Bxe4 e6 20. Rc4 {Mathe,I (2414)-Maurer,S (2369) ICCF 2007 1/2 (59)}) (9... Rd8 10. Qxb6 axb6 11. Re1 (11. Nc2 e6 (11... Bd7 12. Ne5 Be6 13. a3 h5 14. Bd2 Ne8 15. Nxc6 bxc6 16. Ne1 Bd7 17. Nf3 Nd6 18. Be3 Bg4 19. Bf2 Bxf3 20. Bxf3 f5 21. Rfd1 Kf7 22. a4 Rdb8 23. Ra2 {Arnold,G (2278)-Matozo,P (2281) ICCF 2018 1/2 (42)}) 12. h3 Bd7 13. Bd2 Ne8 14. Be1 Nd6 15. g4 f6 16. Bg3 Nf7 17. a3 Ne7 18. Rae1 Ba4 19. Ne3 Bc6 20. Kh2 Re8 21. Nd2 Rac8 22. Nd1 Rcd8 {Arnold,G (2278) -Mills,H (2216) ICCF 2018 1/2 (46)}) 11... Bd7 12. e4 Ra6 13. e5 Ne8 14. Nc2 Nc7 15. a3 Bf5 16. Rd1 Raa8 17. Ne3 Bd7 18. b4 cxb4 19. cxb4 Nxb4 20. Rb1 Nba6 21. Rxb6 {Nemec,Z (2190)-Fels,B (2147) ICCF 2020 1/2 (27)}) (9... Be6 10. Rd1 Qxb3 11. axb3 Rfd8 12. Nc2 a5 13. h3 h6 14. Bd2 Nd7 15. g4 d4 16. c4 Nf8 17. Ne5 Nxe5 18. fxe5 Rdb8 19. Bxa5 Bxe5 20. Bb6 Nd7 21. Ba7 {Sedlácek,T (2212) -Nacer,A (1941) ICCF 2012 1-0 (41)}) 10. Qc2 Bf5 (10... Rd8 11. e4 c4 12. dxc4 (12. e5 cxd3 13. Qxd3 Bf5 14. Qe2 Ne4 15. Nc2 Rac8 16. Ne3 Be6 17. Nh4 Qb6 18. Kh1 Bf8 19. f5 gxf5 20. Nhxf5 Nxe5 21. Nd4 Nd7 22. Nxd5 Bxd5 23. Bxe4 Bxe4+ { Arnold,G (2224)-Lubas,J (2196) ICCF 2014 1/2}) 12... Qb6+ 13. Kh1 dxe4 14. Ng5 Bf5 15. Nxe4 Rd7 16. Re1 Qa5 17. Nxf6+ Bxf6 18. Qf2 Rad8 19. h3 h5 20. c5 Qa6 21. Kh2 {Arnold,G (2224)-Kolek,P (2246) ICCF 2014 1/2 (54)}) (10... Qb6) 11. Nh4 Bg4 12. e4 Rad8 (12... d4 13. e5 Ne8 14. Nf3 Rd8 15. h3 Bxf3 16. Bxf3 f6 17. exf6 Bxf6 18. Kh2 Qd7 19. c4 Nd6 20. Bd2 e5 21. Rae1 Rde8 22. Qd1 Nb4 23. Bxb4 cxb4 24. Bd5+ {Arnold,G (2247)-Cumming,D (2400) ICCF 2015 1/2 (57)}) 13. e5 Nd7 14. Nf3 (14. h3 Be6 15. g4 g5 16. fxg5 Ndxe5 17. Bf4 Qb6 18. Nf5 Bxf5 19. gxf5 f6 20. Rad1 fxg5 21. Bxg5 Kh8 22. Kh1 {Arnold,G (2268)-Bronts,G (2295) ICCF 2011 1/2 (40)}) 14... Bf5 15. Qe2 d4 16. cxd4 cxd4 17. Nh4 Be6 18. Bd2 Rc8 19. b4 a6 20. Nf3 {Arnold,G (2210)-Künzel,U (2133) ICCF 2015 1/2 (64)}) (8... h6 9. Qe1 Be6 10. e4 d4 11. c4 Nb4 12. e5 Nh7 13. Qe2 Bf5 14. Ne1 Nc6 15. g4 Bd7 16. Bd2 Qb6 17. b3 a5 18. Nb5 a4 19. bxa4 Rxa4 20. Rb1 {Koskinen,E (2278) -Teeriaho,T (2321) ICCF 2017 1-0 (51)}) (8... Bg4 9. Qc2 Rc8 10. e4 c4 11. e5 cxd3 12. Qxd3 Ne4 13. Be3 a6 (13... e6 14. Nd4 Nc5 15. Qb5 Ne7 16. h3 a6 17. Qb4 Nd3 18. Qxb7 Bf5 19. Qxa6 Be4 20. Bxe4 dxe4 21. Nc4 Nd5 22. Bf2 Ra8 23. Qc6 Rc8 24. Qa4 g5 25. f5 {Arnold,G (2261)-Velde,M (2126) ICCF 2016 1/2 (58)}) 14. Nd4 Nc5 15. Qd2 Ne4 16. Qe1 Qd7 17. Nxc6 bxc6 18. Nc4 Rb8 19. Bxe4 dxe4 20. b3 {Ragnarsson,J (2112)-Urpilainen,E (2169) ICCF 2016 1-0 (57)}) (8... b6 9. Bd2 ( 9. Qa4 Bd7 (9... Bb7 10. e4 e6 11. e5 Ne8 12. d4 Qd7 13. Qd1 cxd4 14. cxd4 Nc7 15. Rf2 Rac8 16. Bd2 a5 17. Be1 Ba6 18. Bf1 Bxf1 19. Kxf1 b5 20. Kg2 b4 21. Nc2 {Jensen,K (2184)-Frömbgen,A (2154) ICCF 2020 1/2 (27)}) (9... Qd7 10. Rb1 (10. e4 Rd8 11. Re1 (11. f5 d4 12. fxg6 hxg6 13. e5 Nxe5 14. Qxd7 Nxf3+ 15. Bxf3 Bxd7 16. Bxa8 Rxa8 17. c4 Ng4 18. Bf4 Bf5 19. Rfe1 e5 20. h3 {Arnold,G (2233) -Packroff,H (2201) ICCF 2013 0-1 (63)}) 11... Rb8 (11... Bb7 12. Ng5 h6 13. exd5 Nxd5 14. Ne4 Rab8 15. Bd2 f5 16. Nf2 Kh7 17. Nc2 Nc7 18. Rad1 Ba8 19. a3 e5 20. fxe5 Nxe5 21. Qxd7 Rxd7 22. Re3 Bxg2 23. Kxg2 {Arnold,G (2224) -Rodriguez,K (2378) ICCF 2012 1/2 (37)}) 12. Qc2 d4 13. e5 Ng4 14. h3 Nh6 15. c4 Nf5 16. Qf2 Nb4 17. Rd1 h5 18. Kh2 Bb7 19. Nc2 Nxc2 20. Qxc2 a6 21. a4 b5 { Arnold,G (2278)-Lee,M (2250) ICCF 2018 1/2 (37)}) 10... a6 11. Nc2 Bb7 12. b4 cxb4 13. Nxb4 b5 14. Qb3 Nxb4 15. cxb4 Rfc8 16. Bb2 Rc7 17. Be5 Rcc8 18. Qb2 Bh6 19. e3 Qf5 20. Qe2 {1-0 (20) Arnold,G (2282)-Maddox,D (2014) ICCF 2010}) 10. e4 b5 11. Nxb5 (11. Qxb5 Nb4 12. Qxc5 Nxd3 13. Qd4 dxe4 14. Ne5 Nxe5 (14... Bf5 15. Qxd8 Rfxd8 16. Nxd3 Rxd3 17. Re1 Rc8 18. Nb5 Rd7 19. Nd4 Nd5 20. Nxf5 gxf5 21. Rd1 e6 22. Bf1 Rdc7 23. a4 Rb8 24. Bb5 h5 25. Kf1 h4 26. Be2 {Arnold, G (2282)-Nitsche,W (2375) ICCF 2010 1/2 (38)}) 15. fxe5 Ng4 16. Bf4 Qc7 17. Qxe4 Rad8 18. Kh1 Bxe5 19. Rae1 Bxf4 20. Rxf4 h5 21. h3 Nh6 22. Kh2 Nf5 { Arnold,G (2237)-Zielinski,S (2178) ICCF 2012 0-1 (35)}) 11... Na5 12. e5 Ng4 13. Ng5 Qb6 14. Qd1 Bxb5 15. Qxg4 Bxd3 16. Rf2 Bf5 17. Qe2 Rad8 18. b3 f6 19. Nf3 Nc6 20. Bd2 Be4 {Gavrijski,D (1993)-Achermann,J (2203) ICCF 2010 1/2 (35)}) (9. Qc2 Ba6 10. Qa4 (10. Rd1 b5 11. Be3 d4 12. Bd2 Rc8 13. c4 b4 14. Qa4 Bb7 15. Nc2 Rb8 16. a3 a5 17. axb4 (17. Ng5 Qc7 18. Ne1 h6 19. Ne4 Nd7 20. Nf2 Ra8 21. Rdb1 e6 22. Nf3 f5 23. Qd1 Kh7 24. b3 e5 25. Qf1 exf4 26. Bxf4 Qb6 27. Nh3 Ne7 28. Bd2 Ra6 {Cumming,D (2369)-Baranowski,T (2368) ICCF 2020 0-1 (56)}) (17. f5 gxf5 18. axb4 axb4 19. Qb5 Qd6 20. Bf4 e5 21. Nxe5 Nxe5 22. Bxb7 Nh5 23. Bxe5 Qxe5 24. Qc6 b3 25. Ne1 Qe3+ 26. Kh1 Qe7 27. Ba8 Qxe2 28. Qf3 Qxb2 { Cumming,D (2363)-Maguire,G (2406) ICCF 2020 0-1 (58)}) 17... axb4 18. Qb5 Qd6 19. Ng5 (19. Ne5 Rfc8 20. Ne1 h5 21. N1f3 Nd8 22. Qa4 Ra8 23. Qb5 Rcb8 24. Rxa8 Rxa8 25. Nxf7 Kxf7 26. Bxb4 cxb4 27. Ng5+ Kf8 28. Bxb7 Rb8 29. c5 Qc7 30. c6 Ne8 31. Qd5 Bf6 32. Rc1 Bxg5 33. fxg5 e6 34. Rf1+ Kg8 35. Qe4 Kh7 36. Qf4 Qxf4 37. Rxf4 e5 38. Rf8 Nc7 39. Rf6 Nde6 40. Ba6 Rf8 41. Rxf8 Nxf8 42. Bc4 Nfe6 43. Kf2 Nxg5 44. Bb3 Kg7 45. e3 Kf6 46. Bd1 Nge6 47. Bf3 Nc5 48. Ke2 Ke6 49. Kd2 Kd6 50. exd4 exd4 51. h3 N7a6 52. h4 b3 53. g4 hxg4 54. c7 Nxc7 55. Bxg4 Nd5 56. Bd1 Nf4 {0-1 (56) Cumming,D (2363)-Jones,I (2391) ICCF 2020 Bird's Opening with-1...d5}) 19... Na7 20. Qa4 Bxg2 21. Kxg2 Nc6 {Ragnarsson,J (2151)-Sazon,A (2259) ICCF 2019 0-1 (50)}) 10... Qc8 11. Rb1 Rb8 12. Nb5 Rd8 13. Ne5 Bb7 14. Nxa7 Nxa7 15. Qxa7 Nd7 16. Nxd7 Rxd7 17. Qa4 Ra8 18. Qd1 Rxa2 19. f5 Ra8 20. d4 cxd4 {Arnold,G (2308)-Bekemann,U (2333) ICCF 2019 1/2 (28)}) (9. Nc2 Bb7 10. Qe1 Qd6 11. h3 Nh5 12. Be3 f5 13. d4 cxd4 14. Ncxd4 e5 15. Nxc6 exf4 16. gxf4 Bxc6 17. Nd4 Bb7 18. Rf3 Nf6 19. a4 a6 20. Rg3 Rae8 {Oren,I (2314)-Guidoni,M (2042) ICCF 2008 1/2 (25)}) (9. e4 dxe4 10. Ng5 Bg4 11. Qa4 Bd7 12. dxe4 e5 13. Qc2 Qe7 14. f5 Na5 15. Nh3 b5 16. Be3 Rfc8 17. Nf2 Rd8 18. Rad1 Bc6 19. Bg5 h6 20. Bxf6 Qxf6 {Arnold,G (2234)-Almarza Mato,C (2146) ICCF 2013 1/2 (55)}) 9... a6 (9... Bb7 10. Rc1 e6 (10... Ng4 11. h3 Nf6 12. b4 Nd7 13. bxc5 Nxc5 14. Nb5 Rc8 15. Nbd4 e6 16. Kh2 Qd6 17. Rb1 Rfe8 18. a4 Qe7 19. Rb2 f6 20. h4 Rf8 21. h5 gxh5 22. Rh1 {Arnold,G (2174)-Boege,H (2194) ICCF 2015 1-0 (60)}) (10... Re8 11. Re1 e5 12. e4 Qd7 13. Nxe5 Nxe5 14. fxe5 Rxe5 15. Bf4 Re7 16. e5 Nh5 17. d4 Nxf4 18. gxf4 Rf8 19. Rf1 f6 20. Qd3 Bh6 21. Rce1 fxe5 22. fxe5 {Arnold,G (2301)-Tanti,J (2246) ICCF 2020 (29)}) (10... Qd6 11. b4 Rfd8 12. Qa4 a6 13. bxc5 Qxc5+ 14. Kh1 Nd7 15. c4 dxc4 16. Nxc4 b5 17. Qb3 Qa7 18. Na5 Nxa5 19. Bxa5 Rdc8 20. e4 e6 21. Qb4 Rxc1 22. Rxc1 {Arnold,G (2181)-Gleyzer,L (2283) ICCF 2014 1/2 (49)}) 11. Re1 Ne7 12. Qc2 Rc8 13. e4 dxe4 14. dxe4 Rc7 15. Rcd1 Rd7 16. Ne5 Rc7 17. Nb5 Nd7 18. Nxc7 Qxc7 19. Nxd7 Qxd7 20. f5 exf5 21. Bg5 { Arnold,G (2301)-Malbasic,L (1862) ICCF 2020 1-0 (32)}) (9... Bg4 10. h3 Bc8 11. Qe1 Bb7 12. e4 dxe4 13. dxe4 Ba6 14. Rf2 e5 15. f5 Qc7 16. Nh2 gxf5 17. Rxf5 Ne7 18. Rf2 Rad8 19. Bg5 Ne8 20. Rd1 f6 21. Rxd8 {Arnold,G (2261)-Sazon,A (2240) ICCF 2016 1/2 (33)}) 10. Qe1 b5 11. Rd1 (11. e4 dxe4 12. dxe4 e5 13. f5 Qb6 14. Bg5 Bb7 15. Nc2 Rad8 16. Ne3 c4 17. Kh1 Rd3 18. Bxf6 Qxe3 19. Qxe3 Rxe3 20. Bg5 Rd3 21. f6 Bh8 22. Ne1 Rd6 {Arnold,G (2221)-Reichgeld,M (2153) ICCF 2016 1/2 (41)}) 11... Rb8 12. Nc2 Bb7 13. Qf2 Qd6 14. h3 Rbc8 15. Bc1 Rfd8 16. Be3 Nd7 17. d4 cxd4 18. Nfxd4 e6 19. Nb3 Qe7 20. g4 {Arnold,G (2297)-Brömme,S ICCF 2010 1/2}) (8... d4 9. e4 e5 (9... Be6 10. Nc2 Qb6 11. cxd4 Nxd4 12. Ncxd4 cxd4 13. h3 Ne8 14. Qa4 Nc7 15. Bd2 Rac8 16. Qb4 Qxb4 17. Bxb4 Rfe8 18. Rfc1 b6 19. e5 Nd5 20. Bd2 Rcd8 21. Kf2 {Arnold,G (2174)-Jeute,V (2232) ICCF 2015 1/2 (59)}) (9... Bg4 10. h3 Be6 11. Kh2 dxc3 12. bxc3 h6 13. Qe2 Rb8 14. Rb1 Qd7 15. Rb2 Ne8 16. d4 cxd4 17. Rd2 d3 18. Rxd3 Qc8 19. Nd4 Bd7 20. Nb3 Be6 21. Rfd1 {Arnold,G (2234)-Hjorth,J (2120) ICCF 2013 1-0 (68)}) (9... Rb8 10. e5 Nd5 11. c4 Nc7 12. Ng5 Bf5 13. Bxc6 bxc6 14. g4 Bc8 15. Ne4 a5 16. Nxc5 Na6 17. Nxa6 Bxa6 18. Qe2 Qd7 19. h3 c5 20. f5 {Arnold,G (2233)-Garau,B (2201) ICCF 2013 1/2 (34)}) 10. cxd4 cxd4 (10... exd4 11. Nc4 Qe7 12. e5 Ne8 13. Ng5 Bd7 14. Bd2 Rb8 15. Re1 Bf5 16. Ne4 Bxe4 17. Bxe4 b5 18. Na3 Nd8 19. Rb1 Qe6 20. Rc1 Qxa2 21. Qc2 b4 22. Nc4 {Koskinen,E (2278)-Ylipartanen,J (2062) ICCF 2017 1-0 (34)}) 11. f5 a5 (11... Ng4 12. Nc2 a5 13. a4 Nf6 14. Na3 Nd7 15. Bg5 f6 16. Qb3+ Kh8 17. Bd2 b6 18. Nc4 Ba6 19. Rfc1 Rb8 20. fxg6 hxg6 21. Nh4 Kh7 22. Qd1 Nc5 23. Bh3 {Arnold,G (2261)-Mergard,H (2224) ICCF 2016 1/2 (39)}) 12. Nc4 Nd7 13. Nd6 Nc5 14. Nxc8 Rxc8 15. Ne1 b6 16. Bd2 Rc7 17. Rf2 Bf6 18. Bh6 Re8 19. Qg4 Bg7 20. Bd2 {Arnold,G (2292)-Rain,R (2182) ICCF 2019 1-0 (56)}) (8... Bf5 9. Nc2 (9. Nh4 Bg4 10. h3 Bc8 11. e4 d4 12. e5 Ne8 13. cxd4 Nxd4 14. Nc2 Be6 15. Bxb7 Rb8 16. Bg2 g5 17. Nf3 Nxf3+ 18. Rxf3 Bd5 19. Rf2 gxf4 20. gxf4 f6 {Ragnarsson,J (2151)-Tanis,C (2216) ICCF 2019 1/2 (31)}) 9... d4 10. Bd2 a6 11. h3 Qd7 12. g4 Be6 13. Qe1 Rab8 14. Qf2 Rbd8 15. c4 b5 16. b3 Qc7 17. Rac1 bxc4 18. bxc4 Rb8 19. e4 h6 20. e5 {Arnold,G (2254)-Boreux,P (2186) ICCF 2016 1/2 (35)}) (8... Be6 9. Ng5 Bg4 10. h3 Bc8 (10... Bd7 11. e4 dxe4 12. Nxe4 Qc8 13. Kh2 b6 14. Ng5 Qc7 15. Nb5 Qb7 16. Re1 Rae8 17. a4 Qb8 18. Na3 Rd8 19. Nc4 Qc7 20. Qf3 e6 21. Ne4 Nd5 22. Qf2 {Arnold,G (2174)-Doughty,R (2073) ICCF 2015 1-0 (29)}) 11. e4 h6 12. exd5 Nxd5 13. Ne4 b6 14. Nc4 Be6 (14... Qc7 15. Qe2 { 1/2 (15) Dam,J (2027)-Bruno,G ICCF 2019}) 15. g4 Qd7 16. Ng3 f5 17. Qe2 Kh8 18. gxf5 gxf5 19. Nh5 Rg8 20. Kh2 {Vajas,S (1944)-Senzacqua,F (2015) ICCF 2019 1-0} ) (8... Qc7 9. Nc2 (9. Nh4 e5 (9... Bg4 10. f5 Qd7 11. Bg5 d4 12. Nc4 Nh5 13. fxg6 fxg6 14. Rxf8+ Rxf8 15. Rc1 Rf7 16. a4 Qe6 17. Nf3 h6 18. Bd2 b6 19. Qe1 Kh7 20. Qf2 {Hoynck van Papendrecht,F (2134)-Rutkus,R (2201) ICCF 2015 0-1 (53) }) 10. f5 Ne7 11. Bg5 a6 12. e4 dxe4 13. dxe4 b5 14. Qe2 Bb7 15. Rad1 Rad8 16. Rxd8 Qxd8 17. Nc2 Qb6 18. c4 Nc6 19. Ne3 Nd4 20. Qe1 bxc4 {Koskinen,E (2278) -Lahdenmäki,L (2002) ICCF 2017 1/2 (28)}) 9... Bd7 10. Qe1 a5 11. e4 dxe4 12. dxe4 e5 13. Ne3 exf4 14. Nd5 Nxd5 15. exd5 fxg3 16. dxc6 gxh2+ 17. Nxh2 Bxc6 18. Qf2 Bxg2 19. Qxg2 Rad8 20. Ng4 {Oren,I (2314)-Haznedaroglu,K (2288) ICCF 2008 1/2 (43)}) (8... Ng4 9. h3 Nf6 10. Qe1 b6 11. Rb1 Bb7 12. g4 Rc8 13. Bd2 Ne8 14. b4 cxb4 15. cxb4 Nd4 16. Nxd4 Bxd4+ 17. e3 Bg7 18. Qd1 Nd6 19. Qb3 e6 20. Rfc1 {Le Feuvre,B (1838)-Petzold,G (1798) ICCF 2013 0-1 (40)}) 9. Ne5 (9. Nc2 b5 (9... Qb6 10. Rb1 (10. Qe1 c4+ 11. Kh1 cxd3 12. exd3 Qa6 13. Ne5 Bf5 14. Qd1 d4 15. c4 Qb6 16. g4 Bc8 17. Nxc6 bxc6 18. f5 h5 19. fxg6 fxg6 20. gxh5 Bg4 21. Qe1 Nxh5 {Arnold,G (2261)-Markotic,G ICCF 2016 0-1 (49)}) 10... Ng4 (10... a5 11. Bd2 Rd8 12. b3 d4 13. c4 Bd7 14. a3 Qa7 15. Qe1 b6 16. h3 b5 17. Ne5 Nxe5 18. fxe5 Ne8 19. cxb5 Bxb5 20. e6 fxe6 21. a4 Ba6 22. Na3 {Arnold,G (2254) -McDermott,F (2147) ICCF 2016 1/2 (27)}) 11. h3 c4+ 12. d4 Nf6 13. Nd2 (13. Kh2 Qa5 (13... Bf5 14. Nd2 Qc7 15. g4 Bd7 16. b3 cxb3 17. axb3 b5 18. e3 Rfd8 19. Qe2 e6 20. Ne1 a5 21. Nd3 Bf8 22. Bb2 a4 23. Nc5 {1/2 (23) Arnold,G (2174) -Kulakiewicz,M (2150) ICCF 2015}) 14. Ne5 Rd8 15. g4 Qc7 16. Ne3 e6 17. g5 Nh5 18. N3g4 Ne7 19. b3 cxb3 20. axb3 Qxc3 21. e3 {Arnold,G (2253)-Bendaña-Aragón, J (2276) ICCF 2016 1/2 (30)}) 13... Rd8 (13... Qc7 14. g4 b5 15. e4 dxe4 16. Nxe4 (16. Qe2 e6 17. Nxe4 Nxe4 18. Bxe4 Rb6 19. Bd2 Bb7 20. Rbe1 b4 21. Qg2 { Arnold,G (2216)-Schneider,H (2225) ICCF 2017 1/2 (43)}) 16... Nxe4 17. Bxe4 f5 18. Bg2 e6 19. Bd2 Ne7 20. g5 Nd5 21. Bxd5 exd5 22. Re1 Bd7 23. Qf3 Bc6 24. Re6 {1/2 (24) Guevara i Pijoan,J (2326)-Pallás Muiño,J (2318) ICCF 2018}) 14. g4 h5 15. g5 Ne8 16. e4 dxe4 17. Nxc4 Qc7 18. Nd2 Nd6 19. Re1 Bf5 20. Nxe4 Nxe4 21. Bxe4 {Arnold,G (2216)-Owens,J (2173) ICCF 2017 1-0 (37)}) (9... d4 10. e4 dxe3 11. Qe2 Re8 12. Bxe3 Bf5 13. Rad1 e5 14. Nxe5 Nxe5 15. fxe5 Rxe5 16. Qd2 Qe8 17. Bf4 Re2 18. Qc1 Rd8 19. Ne3 Ng4 20. Rde1 Rxe1 {Arnold,G (2216)-Pommrich,R (2260) ICCF 2017 1/2 (27)} 21. Rxe1 Nxe3 22. Qxe3 Qxe3+ 23. Rxe3 b5 24. Re7 Bxd3 25. Rxa7 Bc4 26. Kf2 h5 {1/2 (26) Arnold,G (2216)-Ward,R (2191) ICCF 2017} ) (9... Qd6 10. Qe1 (10. Rb1 b5 11. a3 Bb7 12. b4 c4 13. Be3 cxd3 14. exd3 d4 15. Nfxd4 Nxd4 16. Bxd4 Bxg2 17. Kxg2 Nd5 18. Bc5 Qd7 19. Qf3 Nxc3 20. Rbe1 Rfe8 21. d4 Na4 {Arnold,G (2254)-Sachuk,A ICCF 2016 1/2 (42)}) 10... d4 (10... b6 11. e4 dxe4 12. dxe4 Qd3 13. Na3 Qxe4 14. Qxe4 Nxe4 15. Ne5 Nxe5 16. fxe5 f5 17. exf6 Nxf6 18. Bf4 Ba6 19. Bxb8 Bxf1 20. Bxa7 Bxg2 21. Kxg2 Ng4 22. Kg1 { Arnold,G (2215)-Albano,A (2262) ICCF 2017 1/2}) (10... Rd8 11. Rb1 b5 (11... a5 12. a4 b6 13. Na3 Ba6 14. Nb5 Qd7 15. e4 dxe4 16. dxe4 Qd3 17. Nd2 e5 18. Rf3 Qd7 19. Nc4 Nh5 20. Bf1 exf4 21. Bxf4 Nxf4 22. gxf4 Na7 23. Nxa7 {Arnold,G (2236)-Lujambio,A (1974) ICCF 2017 1-0 (43)}) 12. a3 d4 13. cxd4 Nxd4 14. Ncxd4 cxd4 15. Qb4 Qe6 16. Qa5 Rd7 17. Ne5 Rd6 18. Qxa7 Rbb6 19. Bd2 Nd7 20. Nf3 Rdc6 21. Qa5 h6 22. f5 {Arnold,G (2236)-Jensen,E (2445) ICCF 2017 1/2 (50)}) (10... Be6 11. Ng5 Bd7 12. e4 dxe4 13. dxe4 e5 14. Ne3 Rbd8 15. f5 Na5 16. b3 b5 17. g4 h6 18. h4 Bc6 19. Nf3 Nxe4 20. g5 hxg5 21. hxg5 Rfe8 22. f6 {Arnold,G (2221) -Sojka,V (2149) ICCF 2016 1-0 (26)}) (10... h6 11. b4 cxb4 12. cxb4 a5 13. a3 Bd7 14. Bb2 Rfc8 15. e4 dxe4 16. dxe4 Qd3 17. Qd1 Qxd1 18. Rfxd1 Be8 19. Nfe1 Nd7 20. e5 Nb6 21. b5 Nd8 22. Bh3 {Arnold,G (2236)-Buczinski,H (1982) ICCF 2017 1-0 (86)}) 11. Bd2 Be6 12. c4 b5 13. cxb5 Rxb5 14. b3 Bd5 15. Na3 Rb6 ( 15... Rbb8 16. h3 Nb4 17. Qf2 Qa6 18. Nc4 Nc2 19. Rab1 Bxc4 20. bxc4 Qxa2 21. Rxb8 Rxb8 22. Ne5 e6 23. Nc6 Rb1 24. Rxb1 Qxb1+ 25. Qf1 Qb6 26. Qc1 Nb4 27. Qb2 {Arnold,G (2216)-Eastlake,P (2133) ICCF 2017 1/2 (43)}) 16. Qc1 e6 17. Ng5 Bxg2 18. Kxg2 Qe7 19. Nc4 Ra6 20. Nf3 Nd5 21. Nfe5 {Arnold,G (2215)-Kutlu,H (2146) ICCF 2017 1/2 (28)} Qc7 22. Kg1 Re8 23. Nxc6 Rxc6 24. Rf2 h5 25. Rb1 e5 26. Nxe5 Bxe5 27. fxe5 Rxe5 28. Qc4 Nb6 29. Qc2 Qe7 30. Rbf1 f6 31. b4 Kg7 32. bxc5 Rexc5 33. Qd1 {Arnold,G (2216)-Hoffmeyer,F (2209) ICCF 2017 1/2 (64)}) (9... b6 10. Bd2 (10. b4 Ne8 11. b5 Na5 12. Bd2 Nd6 13. Rb1 a6 14. a4 axb5 15. axb5 Bb7 16. Ne3 e6 17. g4 c4 18. Nd4 Re8 19. Nec2 Rc8 20. Qe1 Qd7 21. Rb4 Rc5 {Thau,O (1718)-Lopes Rodrigues,A ICCF 2020 0-1 (38)}) (10. Rb1 d4 11. Bd2 Bb7 12. c4 a5 13. b3 Re8 14. a3 e5 15. fxe5 Ng4 16. Bf4 Ncxe5 17. Qd2 Ba8 18. Nxe5 Nxe5 19. b4 Bxg2 20. Kxg2 axb4 21. axb4 Ra8 {Pheby,I (2346)-Williamson,D (2390) ICCF 2018 1/2 (44)}) 10... Bb7 (10... Ba6 11. b4 e6 12. a4 Ne7 13. Ne5 Nd7 14. a5 Bb7 15. d4 Qc7 16. Ne3 Bc6 17. axb6 axb6 18. Be1 cxd4 19. cxd4 Bb5 20. Nc2 Ra8 21. Na3 Ba4 22. Qd3 {Arnold,G (2236)-Giesen,K (2162) ICCF 2017 0-1 (63)}) ( 10... Qc7 11. b4 e6 12. Ne3 Bb7 (12... Re8 13. Rc1 Bb7 14. Qc2 Rbd8 15. bxc5 bxc5 16. Nd1 Ba8 17. c4 e5 18. cxd5 Nxd5 19. fxe5 Nxe5 20. e4 Nxf3+ 21. Bxf3 Bd4+ 22. Kg2 Nb6 23. Bg5 f6 24. Be3 {Arnold,G (2216)-Morales,O (2165) ICCF 2017 1/2 (39)}) 13. Rc1 Rfd8 14. Qc2 c4 15. Nd1 Ne7 16. Nf2 Nd7 17. d4 Nf6 18. a4 a6 19. Ne5 Ne8 20. g4 Nd6 21. Ra1 Rf8 22. g5 {Arnold,G (2261)-Edwards,K (2195) ICCF 2016 1/2 (40)}) (10... Qd6 11. Re1 Bf5 12. b4 a6 13. a4 Rfd8 14. b5 axb5 15. axb5 Na5 16. Ne3 Be6 17. c4 Ng4 18. Nxg4 Bxg4 19. Ne5 dxc4 20. Nxg4 Qd4+ 21. Be3 Qxa1 22. Qxa1 {Arnold,G (2254)-Dushkin,D (2285) ICCF 2016 1-0 (60) }) (10... e6 11. Re1 (11. b4 a5 12. a3 Bb7 13. Qe1 Qc7 14. Rb1 Rfc8 15. Qf2 axb4 16. axb4 Ng4 17. Qe1 Ra8 18. bxc5 bxc5 19. Ne3 Nxe3 20. Bxe3 Ra5 21. Qd2 Ba8 22. Rfc1 Rb8 {Arnold,G (2253)-Pereira,N (2271) ICCF 2016 1/2 (42)}) 11... Ba6 12. a4 h5 13. Na3 d4 14. Qc2 Ng4 15. Nc4 Na5 16. cxd4 Nxc4 17. dxc4 cxd4 18. h3 Ne3 19. Bxe3 dxe3 20. Rad1 Qc7 21. b3 Bb7 22. Ng5 {Arnold,G (2216)-Bus, T (2253) ICCF 2017 1/2}) 11. Re1 (11. Rb1 e6 12. b4 Qc7 13. a4 (13. Qc1 Rfe8 14. Re1 (14. Qa3 c4 15. Qb2 b5 16. Kh1 Ng4 17. h3 Nf6 18. Kh2 Rbc8 19. a4 bxa4 20. Ra1 e5 21. b5 e4 22. bxc6 exf3 23. cxb7 fxg2 24. Rf2 Rb8 25. Rxg2 Rxb7 { Owens,J (2097)-Hoch,F ICCF 2016 0-1 (48)}) 14... Nd7 15. Ne3 Rec8 16. a3 Ne7 17. Nd1 d4 18. b5 Ra8 19. Nf2 Qd8 20. Qb2 Nf5 21. Rec1 Nf6 22. cxd4 Bxf3 23. Bxf3 Nd5 24. Bxd5 Bxd4 {Guevara i Pijoan,J (2326)-Díaz Rubí,F (2229) ICCF 2018 1/2 (37)}) 13... Ne7 14. Re1 Rfd8 15. Qc1 Nf5 16. Ne3 Nd6 17. a5 bxa5 18. bxc5 Qxc5 19. Nd4 a4 20. Ra1 Bc6 21. Nxc6 Qxc6 22. Qc2 Nd7 {Arnold,G (2253)-Jones,B (2220) ICCF 2016 0-1 (58)}) 11... d4 (11... Re8 12. e4 d4 13. cxd4 Nxd4 14. Ncxd4 cxd4 15. Qa4 Nd7 16. b4 a6 17. Qb3 e6 18. Rec1 Qe7 19. Rc2 Rec8 20. Rac1 Qd8 21. a3 Rxc2 22. Qxc2 Rc8 23. Qb1 {Martín Molinero,R (2429)-Guevara i Pijoan,J (2326) ICCF 2018 1/2 (31)}) 12. cxd4 cxd4 13. Rc1 Nd5 (13... a6 14. a3 Nd5 15. Rf1 Qd7 16. Qe1 f5 17. Qf2 Nf6 18. Ne5 Nxe5 19. fxe5 Ng4 20. Qxd4 Qe6 21. Bxb7 Rxb7 22. Ne3 Nxe3 {1/2 (22) Arnold,G (2216)-Kudr,R (2247) ICCF 2017}) 14. Rf1 Qd7 15. Qe1 Rbc8 16. h3 Rfe8 17. Qf2 Ne3 18. Nxe3 (18. Bxe3 dxe3 19. Nxe3 Bxb2 20. Ne5 Nxe5 21. Rxc8 Bxc8 22. fxe5 Rf8 23. Nc4 Bc3 24. Rc1 Bb4 25. d4 Qb5 26. Bf1 Qa4 27. e4 b5 28. Ne3 Be6 29. Kh2 f6 {Anderson,A (2118)-Hendri Sevano,R (2203) ICCF 2019 0-1 (71)}) 18... dxe3 19. Bxe3 Bxb2 20. Rc2 Bg7 21. g4 {Arnold,G (2236)-Mukherjee,S (2231) ICCF 2017 1/2 (38)}) (9... Be6 10. Ng5 Bd7 11. e4 h6 12. exd5 Bg4 13. Nf3 Nxd5 14. Ne3 Nxe3 15. Bxe3 b6 16. Qd2 Qd7 17. f5 Bxf5 18. Nh4 e6 19. Bxh6 Rbd8 20. Rad1 Bxd3 21. Nxg6 {Arnold,G (2224) -Marwitz,U (2195) ICCF 2014 1/2 (28)}) (9... Qc7 10. Nh4 e6 11. e4 dxe4 12. dxe4 b5 13. e5 Rd8 14. Qe2 Nd5 15. Nf3 b4 16. c4 Ba6 17. Qe4 Nde7 18. b3 Rd7 19. Bb2 Rbd8 20. Qe2 Qa5 21. Qf2 {Arnold,G (2234)-Glotz,D (2148) ICCF 2013 1/2 (39)}) (9... e6 10. Re1 Re8 11. a4 Na5 12. Na3 a6 13. Rb1 c4 14. dxc4 Qc7 15. b4 Nxc4 16. Nxc4 Qxc4 17. Ne5 Qxc3 18. Nd3 Qc7 19. Bb2 Nh5 20. Ne5 Bd7 21. e3 { Arnold,G (2236)-Eelvelt,H (2145) ICCF 2017 1/2 (57)}) (9... Re8 10. Bd2 Qc7 11. Qe1 Bf5 12. Nh4 Bd7 13. e4 dxe4 14. dxe4 Qb6 15. b3 Ng4 16. Kh1 Rbd8 17. h3 Nh6 {0-1 (17) Pallister,S (1931)-Wakeham,M (1911) ICCF 2017}) 10. Be3 (10. Ne5 Bb7 11. Nxc6 Bxc6 12. Be3 Qb6 13. b4 Nd7 14. Qe1 Ba8 15. Rc1 Rbc8 16. f5 e5 17. bxc5 Nxc5 18. Qf2 Qd6 19. f6 Bh8 20. d4 Nd7 21. dxe5 Nxe5 {Jensen,K (2147) -Pommrich,R (2275) ICCF 2014 1-0 (50)}) 10... Qd6 11. b4 cxb4 (11... Nd7 12. Ne5 a5 13. Rc1 (13. Nxc6 Qxc6 14. Rc1 Bxc3 15. bxc5 b4 16. Bd4 Nxc5 17. Bxc3 bxc3 18. Ne3 Na4 19. Nxd5 Qc5+ 20. d4 Qa3 21. Qd3 Be6 22. Nxc3 Nxc3 23. Rxc3 { Arnold,G (2215)-Klewe,W (2191) ICCF 2017 1/2 (27)}) 13... Ncxe5 14. fxe5 Qc7 15. Bxd5 cxb4 16. cxb4 Nxe5 17. d4 Nc4 18. Bf4 e5 19. dxe5 axb4 20. Rf2 Bxe5 21. e4 Bxf4 22. gxf4 {1/2 (22) Ackley,P (2044)-Bradney,R (1904) ICCF 2019}) 12. cxb4 Nd7 (12... Nxb4 13. Nxb4 Qxb4 14. Rc1 Qa5 15. Qd2 Qxd2 16. Bxd2 Bb7 17. Bb4 Ng4 18. Rc7 Ne3 19. Rfc1 d4 20. Rxe7 Rfe8 21. Rcc7 {Arnold,G (2216) -Shabaev,V (2123) ICCF 2017 1/2}) 13. Rc1 (13. Rb1 d4 14. Bf2 Nb6 15. Ng5 Na4 16. Qd2 Bb7 17. Ne4 Qd7 18. Nc5 Nxc5 19. bxc5 a6 20. a4 Na7 21. Bxb7 Rxb7 22. axb5 Nxb5 23. Rb4 Rc7 24. Rc4 {Morelli,A (2250)-Delizia,C ICCF 2011 1/2 (31)}) 13... d4 14. Bf2 Nxb4 (14... Bb7 15. a3 Rfc8 16. Nd2 Nd8 17. Ne4 {Arnold,G (2215)-Visser,A (1968) ICCF 2017 1/2 (33)}) 15. Nxb4 Qxb4 16. Qb3 Qd6 17. Qc2 Rd8 18. Qc7 Qxc7 19. Rxc7 Nb6 20. Rxe7 Rb7 {Ackley,P (2044)-Bicknell,G (1746) ICCF 2019 1/2 (30)}) (9. Qe1 b5 (9... b6 10. Bd2 d4 (10... Ba6 11. b4 Bb7 12. b5 Na5 13. c4 dxc4 14. Bxa5 bxa5 15. Nxc4 Bxf3 16. Bxf3 Rxb5 17. Rb1 a6 18. Bc6 Rxb1 19. Qxb1 Nd5 20. Kg2 a4 21. Bxa4 {Arnold,G (2292)-Klimczak,J (2258) ICCF 2019 1/2 (42)}) (10... b5 11. Rc1 a5 12. Nc2 b4 13. Ne5 Nxe5 14. fxe5 bxc3 15. bxc3 Nd7 16. d4 e6 17. c4 cxd4 18. Bxa5 Qe8 19. Nxd4 Nxe5 20. cxd5 exd5 21. Bc3 Ng4 22. Nb3 {Dam,J (2028)-García Gonzálvez,J (2098) ICCF 2019 0-1 (60)}) 11. h3 Nd5 12. Nc2 Bb7 13. Rc1 Qd6 14. cxd4 Nxd4 15. Nfxd4 cxd4 16. Qf2 e5 17. f5 Qd7 18. Ne1 a5 19. g4 Rfc8 20. Rxc8+ Rxc8 21. Qh4 {Arnold,G (2302)-Nenneman,D (2333) ICCF 2020 1/2 (36)}) (9... d4 10. Bd2 (10. Nc2 Be6 11. c4 a5 (11... Qd7 12. b4 b5 13. a4 bxc4 14. b5 Nb4 15. Nxb4 cxb4 16. Ne5 Qd6 17. dxc4 Ng4 18. Nxg4 Bxg4 19. Bd2 b3 20. Rb1 d3 21. Bf3 Be6 22. exd3 Qxd3 23. Be2 { Guinefolleau,M (2007)-Charpentier,D (2239) ICCF 2018 1-0 (32)}) 12. h3 b5 13. Ng5 Bd7 14. cxb5 Nb4 15. Na3 e6 16. Bd2 Bxb5 17. Qc1 Qc7 18. Nxb5 Rxb5 19. Qc4 Rfb8 20. a4 R5b6 21. Rac1 Rc8 {Velker,W (2206)-Isigkeit,H (2385) ICCF 2015 0-1 (54)}) (10. cxd4 Nxd4 11. e4 Nxf3+ 12. Rxf3 b6 13. h3 Bb7 14. Qe2 Qd7 15. Nc4 Rfd8 16. Kh2 Ne8 17. Ne5 Qe6 18. h4 Nc7 19. Bh3 Qd6 20. Nc4 Qc6 21. Rf1 Nb5 { Williamson,D (1947)-Kogoj,N ICCF 2014 0-1 (68)}) (10. e4 dxc3 11. bxc3 Qxd3 12. e5 Nd5 13. Bd2 Rd8 14. Rf2 Qa6 15. Nc2 Qa4 16. Ne3 Nxe3 17. Bxe3 b6 18. h3 Bf5 19. g4 Be4 20. Re2 Rd3 21. Kf2 Na5 {Grapenfalk,H-Lundberg,K (1995) ICCF 2018 0-1 (34)}) 10... b5 (10... Be6 11. Nc2 (11. Ng5 Bd5 12. Bh3 b5 13. Nc2 h6 14. Nf3 Bxf3 (14... Qd6 15. Qf2 Be6 16. Bxe6 Qxe6 17. cxd4 Ng4 18. Qg2 Nxd4 19. Nfxd4 cxd4 20. Qf3 Rfc8 21. Rfc1 Rc5 22. Nb4 Rbc8 {Veen,K (2113)-McClain,D (2180) ICCF 2006 1/2 (28)}) 15. Rxf3 e6 16. e4 dxe3 17. Bxe3 Qxd3 18. Rf2 Ne4 19. Bf1 Qd6 20. Rd1 Qc7 21. Re2 Na5 22. Bg2 Nd6 {Oaker,W (2246)-Bures,J (2451) ICCF 2008 0-1}) (11. h3 Qb6 (11... b5 12. Nc2 dxc3 (12... Rc8 13. g4 Qd7 14. cxd4 cxd4 15. Qf2 a5 16. Rfc1 h5 17. f5 Bd5 18. g5 Ne8 19. Nh4 Bxg2 20. Qxg2 { Arnold,G (2308)-Gerhards,G (2303) ICCF 2019 1/2 (25)} gxf5 21. Ne1 e5 22. g6 e4 23. Qg5 fxg6 24. Nxg6 {Arnold,G (2292)-Pulido Pino,R (2202) ICCF 2019 1/2 (25)} ) (12... Nd5 13. Ng5 Bc8 14. Kh2 Bb7 15. Ne4 Qb6 16. f5 b4 17. c4 Nf6 18. Nxf6+ exf6 19. b3 Rfe8 20. Qf2 Rbd8 21. a3 bxa3 22. Rxa3 Re5 23. Bf4 Re7 24. Bd2 { Okroznik,G-Kos,I (2139) ICCF 2013 0-1 (35)}) 13. bxc3 b4 14. Ng5 Nd5 15. c4 Nd4 16. Nxd4 Bxd4+ 17. Kh1 Ne3 18. Bxe3 Bxe3 19. g4 h6 20. Qg3 Qd4 21. Ne4 f5 22. gxf5 Bxf5 23. Rad1 {Velker,W (2187)-Arnold,G (2224) ICCF 2014 1/2 (49)}) (11... h6 12. g4 Qb6 13. f5 Bd5 14. c4 Bxf3 15. Bxf3 Qxb2 16. Nb5 a6 17. Nc7 gxf5 18. Rb1 Qxa2 19. gxf5 Ne5 20. Qc1 Kh7 21. Ra1 Qb3 22. Ba5 b6 23. Bd2 {Arnold,G (2292)-Debevec,B (2261) ICCF 2019 1-0 (46)}) 12. Ng5 (12. c4 Qc7 13. Rc1 h6 14. g4 Rbd8 15. Qh4 Nh7 16. Nc2 Bd7 17. b4 cxb4 18. Rb1 a5 19. a3 bxa3 20. Nxa3 Nb4 21. f5 Bc6 22. Bxh6 Bxh6 23. Qxh6 Qg3 {Arnold,G (2308)-Corujedo Hernández,R (2211) ICCF 2019 1/2 (37)}) 12... Bd5 13. Bxd5 Nxd5 14. Rb1 Qc7 15. c4 Nf6 16. Qf2 a6 17. Qg2 e6 18. Nc2 b5 19. cxb5 axb5 20. b4 c4 21. dxc4 bxc4 22. b5 Ne7 { Veen,K (2176)-Hauenstein,H (2054) ICCF 2007 0-1 (44)}) (11. Qc1 Qd7 12. Re1 Rfd8 13. Ng5 Bf5 14. Bxc6 Qxc6 15. cxd4 cxd4 16. Qxc6 bxc6 17. Nc4 Nd5 18. Rac1 h6 19. Nf3 Rdc8 20. Rc2 Nb6 21. Nce5 c5 {Veen,K (2176)-Gatto,C (2164) ICCF 2007 1/2}) 11... Qb6 (11... Qd7 12. Ng5 Bf5 13. cxd4 cxd4 14. Nf3 Be6 15. b3 Nd5 16. b4 b5 17. Ng5 Ne3 18. Nxe3 dxe3 19. Bxe3 Bxa1 20. Bxc6 Qxc6 21. Qxa1 Bd5 22. Bc5 {Schmidt,T (2143)-Davidov,D (2234) ICCF 2017 1/2 (60)}) (11... a6 12. cxd4 (12. h3 Qb6 13. Qc1 Rfc8 (13... a5 14. Rf2 Rbd8 15. c4 Qc7 16. b3 Rb8 17. Na3 Qc8 18. Kh2 Ne8 19. Nb5 Bd7 20. a3 Qd8 21. Rb1 Nd6 22. Ng5 h6 23. Nf3 Be8 24. Qg1 b6 25. Rff1 {Malnar,A (2384)-Ferreira,J (2326) ICCF 2017 1-0 (68)}) (13... Rbc8 14. Kh2 Rfd8 15. c4 Qa7 16. a4 a5 17. Qe1 b6 18. Qf2 Qb8 19. Rae1 Bd7 20. Kg1 Nb4 21. Nxb4 axb4 22. Ra1 Bc6 23. b3 Qc7 24. Ra2 Nd7 25. g4 { Zhdanenia,K (2299)-Korogodski,L (2277) ICCF 2017 1/2 (60)}) 14. g4 Bd7 15. Na3 Qa7 16. Nc4 h5 17. f5 hxg4 18. hxg4 b5 19. Nce5 c4 20. Kh1 cxd3 21. exd3 dxc3 22. bxc3 Ne4 23. dxe4 Nxe5 {Brotherton,T (2211)-Fels,B (2147) ICCF 2020 1-0 (33)}) 12... cxd4 13. h3 Rc8 14. Qf2 Qd7 15. Kh2 Bd5 16. Rfc1 Nh5 17. a4 e5 18. fxe5 Nxe5 19. Ncxd4 Nxf3+ 20. Bxf3 Bxf3 21. Nxf3 Bxb2 22. Rxc8 Rxc8 23. Rb1 { Aycock,A (1848)-Solar,J (2268) ICCF 2016 1/2 (49)}) (11... Re8 12. h3 Qb6 13. Qc1 Rbd8 14. g4 Bc8 15. cxd4 Nxd4 16. Ncxd4 cxd4 17. Ne5 Be6 18. Qe1 Rc8 19. f5 Bd5 20. fxg6 fxg6 21. Rxf6 Qd8 22. Rf2 Bxe5 23. Rc1 {Schmidt,T (2143)-Rodolfo Masera,L (2218) ICCF 2017 0-1 (54)}) 12. Qc1 c4 (12... Rfd8 13. c4 Bf5 14. Rb1 a5 15. h3 Qc7 16. Qe1 h6 17. g4 Bd7 18. Ne5 Nxe5 19. fxe5 Nh7 20. Bxa5 b6 21. Bd2 g5 22. Qf2 Rf8 23. e3 {Schmidt,T (2143)-Bryg,S (2125) ICCF 2016 1-0 (47)}) 13. cxd4 (13. Nfxd4 Nxd4 14. Nxd4 cxd3 15. exd3 Ng4 16. Kh1 Bxd4 17. cxd4 Qxd4 18. h3 Nf2+ 19. Kh2 Nxd3 20. Bc3 Qc5 21. Qc2 Rfd8 22. Rad1 Nb4 23. Rxd8+ Rxd8 24. Rd1 {Schmidt,T (2048)-Schellens,M (1999) ICCF 2019 1/2 (40)}) 13... cxd3 14. exd3 Bf5 15. Rd1 Bxd3 16. Be3 Bxc2 17. Qxc2 Rbc8 18. Qb3 Qxb3 19. axb3 Ng4 20. Bf2 Rfd8 21. d5 Nb4 22. Rxa7 {Kaminski,J (1959)-Rusznák,Z (1980) ICCF 2020 1-0 (51)}) 11. Nc2 dxc3 (11... Bb7 12. cxd4 (12. h3 Nd5 13. e4 dxe3 14. Nxe3 b4 15. Ng5 Nxe3 16. Qxe3 Nd4 17. Bxb7 Rxb7 18. Qf2 Nb5 19. Ne4 bxc3 20. bxc3 Rc7 21. Qe2 Bxc3 22. Nxc3 Qd4+ 23. Kg2 Nxc3 {Schmidt,T (2143)-Scharf,N (2165) ICCF 2017 0-1 (44)}) 12... cxd4 13. Rc1 Qb6 14. h3 Nd5 15. Nh2 (15. Ng5 Rbd8 16. g4 h6 17. Ne4 e6 18. g5 h5 19. Nb4 Ncxb4 20. Bxb4 Nxb4 21. Qxb4 Bxe4 22. Bxe4 Rc8 23. Kg2 Rc7 24. a4 Rfc8 25. Rxc7 Rxc7 26. Qxb5 Qd6 {Arnold,G (2292)-Sande,Ø (2097) ICCF 2019 1/2 (75)}) 15... Rfd8 16. f5 Ne3 17. Nxe3 dxe3 18. Bc3 Nd4 19. Bxb7 Qxb7 20. g4 gxf5 21. Bxd4 Bxd4 22. Rxf5 Bxb2 23. Rb1 {Arnold,G (2308) -Guaimare,C (2325) ICCF 2019 1/2}) (11... Nd5 12. cxd4 cxd4 13. Rc1 (13. Qf2 Qb6 14. Nh4 Qd8 15. Rac1 Bb7 16. Nf3 Qb6 17. Ng5 Rbd8 18. a3 a5 19. b4 a4 20. h3 e6 21. Ne4 Rfe8 22. Nc5 Ba8 23. g4 f5 24. Qg3 Qc7 {Schmidt,T (2143)-Repanic, F (2082) ICCF 2017 0-1 (50)}) 13... Bb7 14. Ng5 e6 15. g4 h6 16. Ne4 f5 17. Nc5 Bc8 18. gxf5 exf5 19. Qg3 Kh7 20. Qf3 Nde7 21. Nb4 Nxb4 22. Bxb4 Re8 23. Rc2 { Rickert,W (1994)-Stuttard,T ICCF 2013 0-1 (27)}) 12. bxc3 Bb7 (12... a6 13. Ne3 Qc7 14. Nd1 Rd8 15. Rc1 Qb6 16. Qf2 Ng4 17. Qe1 Be6 18. h3 Nf6 19. Be3 Bxa2 20. Qf2 Nd7 21. g4 Bd5 22. f5 Rbc8 23. Ra1 Rf8 24. Qh4 {Arnold,G (2302)-Procopi,J (2339) ICCF 2020 0-1 (62)}) (12... a5 13. Ne3 Qc7 14. Rb1 e6 15. g4 c4 16. g5 Nd5 17. dxc4 bxc4 18. Rxb8 Qxb8 19. Ng4 Qb6+ {Velker,W (2206)-Kopelevich,A (2384) ICCF 2015 1/2}) 13. Rb1 Ba8 (13... a6 14. a4 bxa4 15. Rxb7 Rxb7 16. Ne5 Nxe5 17. Bxb7 Ned7 18. Bg2 Qc7 19. Qb1 Nb6 20. Ne3 Rd8 21. c4 Qd6 22. Kh1 Rb8 23. Qc1 Nfd7 24. Nd1 Nf8 25. Nf2 {Arnold,G (2292)-Valente,D (2266) ICCF 2019 1/ 2 (58)}) 14. Ne3 Qd7 (14... a6 15. a4 e6 16. axb5 axb5 17. Nd1 Na5 18. c4 b4 19. Nf2 Bxf3 20. Bxf3 Nd7 {Arnold,G (2308)-Korogodski,L (2348) ICCF 2019 1/2 (50)}) 15. Qf2 e6 (15... c4 16. a4 a6 17. axb5 axb5 18. Rfd1 Rfd8 19. Be1 Qc7 20. Ng5 cxd3 21. exd3 e6 22. Qe2 (22. h3 h6 23. Ne4 Ne7 24. Nxf6+ {Arnold,G (2292)-Castle Jr.,T (2147) ICCF 2019 1/2 (34)}) 22... Qe7 23. Kh1 Qe8 24. Nc2 Nd5 25. Ne4 Nce7 26. c4 {Arnold,G (2292)-Salnaitis,A (2212) ICCF 2019 1/2 (63)} ) 16. Rb2 h5 17. Ng5 b4 18. h3 Nd5 19. Nxd5 exd5 20. Rc2 Rfe8 21. Nf3 {Arnold, G (2292)-Schieferdecker,M (2297) ICCF 2019 0-1 (83)}) 10. Nc2 b4 (10... d4 11. cxd4 cxd4 12. Bd2 a5 13. Rc1 Bb7 14. h3 Nd5 15. g4 e6 16. Ng5 Qd7 17. Qh4 h6 18. Ne4 f5 19. Nc5 Qd6 20. Nxb7 Rxb7 21. a3 {Arnold,G (2292)-Duchardt,A (2354) ICCF 2019 1/2 (46)}) 11. Bd2 (11. cxb4 cxb4 12. h3 Nd7 {1/2 (12) Brotherton,T (2211)-Albano,A (2214) ICCF 2020} (12... Qd6 13. Be3 Nh5 14. Ncd4 Nxd4 15. Bxd4 Bxd4+ 16. Nxd4 Qb6 17. e3 Ba6 18. Rd1 e6 19. Qf2 Nf6 20. g4 Rbc8 21. Qh4 Kg7 22. Rf2 {Arnold,G (2181)-Pommrich,R (2275) ICCF 2014 1/2 (44)}) 13. Qf2 a5 14. Nfd4 Nxd4 15. Nxd4 Bb7 16. Be3 e6 17. a3 Ba8 18. Rac1 a4 19. g4 Qe7 20. Rc7 Rb7 21. Nc6 Qd6 22. Rxb7 Bxb7 23. Nxb4 Bxb2 24. Bc1 {Arnold,G (2302)-Tedesco,M (2304) ICCF 2020 1/2 (45)}) 11... a5 12. Ne3 e6 13. Rc1 Qb6 14. h3 Nd7 15. c4 Ne7 16. cxd5 exd5 17. b3 Bb7 18. Qf2 f5 19. g4 Rbe8 20. gxf5 gxf5 {Pisani,C (2139)-Hegoburu,P (2400) ICCF 2016 0-1 (40)}) (9. Qa4 a6 10. Ne5 Nxe5 11. fxe5 Nd7 12. e6 fxe6 13. Rxf8+ Nxf8 14. Qh4 e5 15. Bg5 Be6 16. Rf1 Qd7 17. Nc2 b5 18. b3 Kh8 19. h3 Re8 20. Kh2 Bg8 {Sedlácek,T (2229)-Junge,W (2373) ICCF 2017 1/2 (37)}) (9. Nh4 b5 10. f5 b4 11. Nc2 bxc3 12. bxc3 Qa5 13. c4 Ng4 14. fxg6 hxg6 15. Bxd5 Bxa1 16. Nxg6 e6 17. Bxc6 fxg6 18. Rxf8+ Kxf8 19. Nxa1 Kg8 20. h3 Qxa2 {Bowen,F (1975)-Medina Jimenez,A ICCF 2017 0-1 (58)}) (9. Bd2 Bg4 10. Nc2 Bxf3 11. Bxf3 d4 12. e4 e6 13. e5 Nd5 14. c4 Ne3 15. Nxe3 dxe3 16. Bxe3 Nd4 17. Be4 Qd7 18. Rb1 b6 19. b4 Rfd8 20. bxc5 bxc5 {Snijders,J (2116)-Deacon,G (1817) ICCF 2017 1-0 (28)}) 9... Qc7 (9... Ng4 10. Nxc6 bxc6 11. e4 d4 12. e5 f6 13. h3 Nh6 14. Nc4 Be6 15. exf6 Bxf6 16. Ne5 dxc3 17. Nxc6 Bd4+ 18. Kh2 cxb2 19. Nxd8 bxa1=Q 20. Nxe6 Rfc8 (20... Qxa2 21. Nxf8 Rxf8 22. Qe1 e6 23. g4 Nf7 24. Be3 Qa6 25. Bxd4 cxd4 26. Qe4 Qd6 27. h4 g5 28. hxg5 Nxg5 29. Qc6 Qxc6 30. Bxc6 e5 31. Kg3 exf4+ 32. Rxf4 {Arnold,G (2210)-Rauduvè,A (2327) ICCF 2015 1/2 (35)} ) (20... Rf6 21. Bd5 Nf7 22. Bb3 a5 23. Qe2 a4 24. Bc4 Nd6 25. Nxd4+ Nxc4 26. Nc2 Qxa2 27. dxc4 Rb3 28. Qg2 Rd3 29. Re1 Rf7 30. Re4 h5 31. h4 Rc3 32. Re2 { Arnold,G (2247)-Jimena Bonillo,S (2021) ICCF 2015 1/2 (40)}) 21. Bd5 {Necula,I (2366)-Sánchez,M (2389) ICCF 2010 1/2 (52)}) (9... Nxe5 10. fxe5 Ne8 (10... Ng4 11. d4 cxd4 12. cxd4 Qb6 13. e3 (13. Kh1 Be6 14. Rf3 h5 15. h3 Nh6 16. Rb3 Qd8 17. Kh2 Qd7 18. Nb5 Nf5 19. Bf4 b6 20. a4 Rbc8 21. Rd3 Rfd8 22. Qd2 {1-0 (22) Dam,J (2075)-Rodney,R (1695) ICCF 2019}) 13... Be6 14. Qb3 Qxb3 15. axb3 Rbc8 16. h3 Nh6 17. g4 f5 18. exf6 exf6 19. Nb5 f5 20. g5 Nf7 21. h4 a6 22. Nc3 { Jean,L (1902)-Blondel,F (1985) ICCF 2019 1-0 (34)}) 11. Bf4 Nc7 12. Qd2 Ne6 13. d4 cxd4 14. cxd4 Nxf4 15. gxf4 Be6 16. e3 {1/2 (16) Daus,P (2417)-Lautenbach,W (2260) ICCF 2011}) (9... Bf5 10. Qa4 (10. c4 h5 11. Rb1 Rc8 12. h3 d4 13. Nf3 a6 14. Nh4 Qd6 15. Nxf5 gxf5 16. Nc2 b5 17. b3 e6 18. Ne1 {1/2 (18) Lanzani,P (2227)-Liutaia,L (1997) ICCF 2020}) (10. Nxc6 bxc6 11. Qe1 e5 12. fxe5 Ng4 13. d4 Qb6 14. e3 cxd4 15. cxd4 f6 16. h3 Bd3 17. hxg4 Bxf1 18. Qxf1 fxe5 19. Qe2 Rbe8 20. Qd3 e4 21. Qc3 {Arnold,G (2263)-Meiners,E (2373) ICCF 2017 0-1 (47)} Qb8 {Arnold,G (2295)-Hohlbein,M (2271) ICCF 2019 0-1 (48)}) 10... b5 11. Nxc6 bxa4 12. Nxd8 Rfxd8 13. Re1 Be6 14. Nc2 Ne8 (14... h5 15. e4 Ng4 16. h3 Nh6 17. Kh2 dxe4 {1/2 (17) Ragnarsson,J (2157)-Tritt,M (2109) ICCF 2018}) 15. Na3 Nc7 16. Rb1 Nb5 17. Nxb5 Rxb5 18. Be3 Rdb8 19. Bxd5 Bxc3 20. Bxe6 fxe6 21. Red1 { Ragnarsson,J (2125)-Drößler,U (2300) ICCF 2017 0-1 (37)}) (9... Qb6 10. e4 c4+ 11. d4 Nxe5 12. fxe5 Nxe4 13. Nxc4 dxc4 14. Bxe4 Bxe5 15. Qf3 (15. Rf2 Bg7 16. Qf3 (16. Bf4 e5 17. dxe5 Be6 18. Qd6 Qb5 19. Qb4 Qxb4 20. cxb4 Rfd8 21. Rc2 b5 22. Re1 h5 23. Kf2 Rbc8 24. h4 Rd4 25. Bf3 Re8 26. Rd2 Red8 27. Rxd4 Rxd4 { Arnold,G (2236)-Malek,S (2150) ICCF 2017 1/2 (28)}) 16... h5 17. Qe2 Qc7 18. Bf4 e5 19. dxe5 Bxe5 20. Bxe5 Qxe5 21. Qxc4 Be6 22. Qd4 Qxd4 23. cxd4 Rfd8 24. Rd2 f5 25. Bg2 Bd5 26. Rc1 Bxg2 {Arnold,G (2263)-Dam,J (1683) ICCF 2017 1/2 (37)}) 15... Bf6 16. Rf2 h5 17. Qe2 Qa6 18. Bf4 Bg4 19. Qe3 Rbd8 20. Re1 Rd7 21. Bg5 {Bowen,F (1974)-Tudorache,M (2181) ICCF 2017 0-1 (66)}) 10. Qa4 (10. Nxc6 Qxc6 (10... bxc6 11. e4 a5 12. Qe1 Qb6 13. Kh1 a4 14. Rb1 dxe4 15. dxe4 Rd8 16. Qe2 Qa6 17. Qc2 Be6 18. Ra1 Rd7 19. f5 gxf5 20. exf5 Bd5 21. Bf4 Rbd8 22. g4 {Arnold,G (2267)-Carrettoni,A (2103) ICCF 2018 1-0 (38)}) 11. Nc2 (11. Qc2 b5 (11... Qb6 12. h3 (12. e4 c4+ 13. d4 Nxe4 14. Nxc4 Qc7 15. Ne5 b6 (15... Rd8 16. Be3 f6 17. Nd3 Bf5 18. Bf3 Qd7 19. Qd1 h5 20. Nc5 Nxc5 21. dxc5 e5 22. Rf2 e4 23. Be2 Rbc8 24. a4 a5 25. Bd4 Bf8 26. b4 Be7 27. Qe1 {Jung,R (2309) -Weber,K (2314) ICCF 2018 1/2 (56)}) 16. Re1 Bb7 17. Bf1 e6 18. Bd3 a5 19. Be3 f6 20. Nf3 Qd7 21. Nd2 Nd6 22. a4 Rbc8 23. Qb3 Bc6 {Jung,R (2309)-Kostanjsek,Z (2312) ICCF 2018 1/2 (41)}) 12... Rd8 (12... c4+ 13. Kh2 cxd3 (13... Rd8 14. dxc4 Bf5 15. Qa4 Qe6 16. cxd5 Qxe2 17. Qd1 Qa6 18. Rf2 Be4 19. Bxe4 Nxe4 20. Rg2 Nf6 21. Rd2 Rd7 22. Qe2 Rxd5 23. Qxa6 Rxd2+ 24. Bxd2 bxa6 25. Rb1 {Arnold, G (2256)-Morales,O (2279) ICCF 2018 1/2 (45)}) 14. exd3 Bf5 15. g4 Bd7 16. Qe2 d4 17. Nc4 Qc7 18. cxd4 Bc6 19. Be3 Bxg2 20. Qxg2 Rbd8 21. Rac1 e6 22. Qf2 Nd5 23. Bd2 Qa5 24. Nxa5 {Arnold,G (2267)-Zajsek,F (2390) ICCF 2018 1-0}) 13. Kh2 d4 14. Nc4 Qa6 (14... Qb5 15. e4 dxe3 16. Bxe3 Nd5 17. Bf2 Bf5 18. Qb3 Qa6 19. Rad1 b5 20. Ne5 Bxe5 21. Bxd5 e6 22. fxe5 Rxd5 23. c4 Rxe5 24. g4 Qd6 25. gxf5 Re3+ 26. Kg2 {Arnold,G (2256)-Celestini,M (2263) ICCF 2018 1/2 (26)}) 15. Bd2 Nd5 16. Ne5 Qd6 17. c4 Ne3 18. Bxe3 dxe3 19. Rf3 Bxe5 20. fxe5 Qxe5 21. Raf1 f6 22. a3 b6 23. Qc1 {Arnold,G (2267)-Corujedo Hernández,R (2253) ICCF 2018 1/2 (43)}) (11... Qa6 12. e4 c4 13. dxc4 dxe4 14. Be3 Ng4 15. Bc5 f5 16. h3 Qc6 17. Bxa7 Ra8 18. Nb5 Nf6 19. Qf2 Qxc4 20. a4 Nh5 21. Rfd1 Qf7 22. Bb6 Qb3 23. Ba7 { Arnold,G (2295)-Davidov,D (2253) ICCF 2019 1/2 (40)}) 12. e4 dxe4 (12... c4 13. e5 Ng4 14. h3 cxd3 15. Qd2 Qb6+ 16. Kh1 Nh6 17. Qxd3 Nf5 18. Nc2 h5 19. g4 hxg4 20. hxg4 Nh4 21. Nd4 Nxg2 22. Kxg2 Bxg4 23. Qg3 Bd7 24. Be3 {Dam,J (2028)-Cole, S (1963) ICCF 2019 1-0 (53)}) 13. dxe4 e5 14. f5 Ba6 (14... Rd8 15. Bg5 h6 16. Bxf6 Qxf6 17. Rad1 Rxd1 18. Qxd1 gxf5 19. exf5 Ba6 20. Nc2 Rd8 21. Qg4 b4 22. c4 Rd2 23. Qe4 Bb7 24. Qxb7 Rxc2 25. Qxa7 Rxb2 26. Be4 {Arnold,G (2295)-Gruhn, T (2253) ICCF 2019 1/2 (28)} Rd2 27. a4 Bf8 28. a5 {1/2 (28) Arnold,G (2281) -Horodyskyi,O (1844) ICCF 2020}) 15. Bg5 b4 (15... h6 16. Bxf6 Bxf6 17. fxg6 fxg6 18. c4 b4 (18... bxc4 19. Rf2 Bg5 20. Rxf8+ {1/2 (20) Arnold,G (2236) -Grout,S (2254) ICCF 2017}) 19. Nb5 Bxb5 20. cxb5 Rxb5 (20... Qxb5 21. Rf2 Bg5 22. h4 Rxf2 23. Kxf2 Be7 24. Bf1 Qd7 25. Bc4+ Kg7 26. Kg2 Rd8 27. a3 Rf8 28. Qe2 h5 29. Rd1 Qc7 30. a4 Kh7 31. a5 Bf6 32. Be6 {Cumming,D (2369)-Zhorov,B (2249) ICCF 2020 1/2 (42)}) 21. Qc4+ Kg7 {Arnold,G (2256)-Vaillant,F (2313) ICCF 2018 1/2 Arnold,G (2267)-Price,D (2015) ICCF 2018 1/2 (25)}) 16. cxb4 Bxf1 (16... Rxb4 17. b3 Bxf1 18. Rxf1 Rd4 19. Be3 Qd6 20. Nc4 Qe7 21. Bxd4 cxd4 22. fxg6 hxg6 23. Bf3 Bh6 24. Kg2 Rd8 25. Qd3 Qe6 26. Be2 Rc8 27. h4 Kg7 28. Qf3 { Arnold,G (2256)-Rawlings,A (2389) ICCF 2018 1/2 (39)}) 17. Rxf1 h6 (17... Rxb4 18. Nc4 Nd7 19. b3 f6 20. Be3 Rd8 21. Qd3 Bf8 22. Na5 Qa8 23. fxg6 hxg6 24. Qa6 Rb6 25. Qe2 Be7 26. Nc4 Rbb8 27. Qg4 {Nemec,Z (2177)-Musumeci,J ICCF 2020 1-0 (34)}) 18. b5 Qd7 19. Rd1 Qc7 20. Be3 gxf5 21. exf5 Rbd8 22. Re1 e4 {Bowen,F (1936)-Carralero Rodríguez,I (2082) ICCF 2019 0-1 (63)}) (11. Nc4 Qc7 (11... Rd8 12. Qc2 b5 13. Ne5 Qc7 14. a4 b4 15. cxb4 Rxb4 16. Bd2 Rb8 17. b4 Nd7 18. d4 c4 19. Bc3 Nxe5 20. fxe5 f6 21. exf6 exf6 22. e4 dxe4 23. Qxe4 {Cumming,D (2369)-Malyshev,V (2172) ICCF 2020 1/2 (27)}) 12. Ne5 Rd8 (12... b6 13. Be3 Rd8 14. Qb3 Be6 15. Bd2 Ng4 16. Nxg4 c4 17. Qb5 Bxg4 18. d4 a6 19. Qxa6 Ra8 20. Qb5 Ra5 {0-1 (20) Thau,O (1704)-Tickel,W ICCF 2020}) 13. a4 (13. Qc2 c4 14. h3 b5 15. g4 a5 16. Be3 cxd3 17. Qxd3 Ne4 18. Rfd1 Rd6 19. a3 g5 20. Rac1 h5 21. b4 hxg4 22. hxg4 a4 23. Bf3 f5 24. Rf1 fxg4 {Nemec,Z (2190)-Tsuprik,A (2124) ICCF 2020 0-1 (64)}) (13. Qe1 b6 14. Qf2 a5 15. Bd2 e6 16. g4 Nd7 17. Nf3 Nf6 18. Qh4 Re8 19. Be1 b5 20. Bg3 Qb6 21. a3 b4 22. axb4 axb4 23. Bf2 Rb7 24. g5 Nh5 { Jensen,K (2184)-Koen,B (2131) ICCF 2020 1/2 (45)}) (13. Be3 Ng4 14. Nxg4 Bxg4 15. h3 Be6 16. g4 d4 17. Bd2 c4 18. f5 Bd5 19. Bxd5 dxc3 20. bxc3 Rxd5 21. d4 Qg3+ {0-1 (21) Thau,O (1704)-Lanzani,P (2227) ICCF 2020}) 13... b6 (13... Ng4 14. Nxg4 Bxg4 15. a5 Qc8 16. Qe1 d4 17. c4 h5 18. Ra2 b5 19. axb6 axb6 20. Qf2 Bf6 21. Be4 Kg7 22. f5 Bxf5 23. Bxf5 Qxf5 24. Qxf5 gxf5 25. Rxf5 {Ragnarsson,J (2151)-Kratochvíl,V (2288) ICCF 2019 1/2 (42)}) 14. Qc2 e6 (14... Bb7 15. a5 e6 16. axb6 axb6 17. e4 Ra8 18. Be3 h5 19. Rfe1 Bh6 20. Rxa8 Rxa8 21. Bd2 Rd8 22. Be3 {1/2 (22) Ragnarsson,J (2151)-Yakovlyev,S (2327) ICCF 2019}) 15. e4 Ba6 16. c4 Bb7 17. a5 dxe4 18. dxe4 bxa5 19. Bd2 Bxe4 20. Bxe4 Rxd2 21. Qxd2 Nxe4 22. Qxa5 Bxe5 {Akdag,M (2568)-Noble,M (2465) ICCF 2017 1/2 (32)}) 11... Rd8 (11... b6 12. a4 a5 13. Ne3 e6 14. Nc4 Ba6 15. Ne5 Qc7 16. Re1 Rfd8 17. Qc2 h5 18. e4 c4 19. dxc4 dxe4 20. b3 Bb7 21. Be3 Ng4 22. Nxg4 hxg4 23. Rad1 {Stapinski,R (1777)-Ponomarev,N (2316) ICCF 2019 0-1 (36)}) (11... b5 12. Bd2 a5 13. Ne3 e6 14. g4 h5 15. g5 Nd7 16. Rc1 Bb7 17. Nc2 b4 18. e4 dxe4 19. Bxe4 Qb5 20. Ne3 Nb6 21. Qf3 Bxe4 22. dxe4 Rfd8 {Schmidt,T (2136)-Evans,C ICCF 2017 0-1 (31)}) 12. Qe1 b6 13. a4 e6 14. Bd2 Qd7 15. h3 Ne8 16. Qf2 a5 17. Ne1 Nd6 18. Nf3 Qe8 19. Ne5 f6 20. Ng4 Nf7 21. b3 Bb7 {Schmidt,T (2136)-Quidiello Prado,M (2206) ICCF 2017 0-1 (51)}) 10... Nxe5 (10... Nd7 11. Nxc6 (11. Bxd5 Nb6 12. Qb3 Nxd5 13. Qxd5 Nxe5 14. fxe5 Bh3 15. Rf2 Rbd8 16. Qf3 Be6 17. Bf4 Qb6 18. e4 Rd7 19. Qe3 Rfd8 20. Rd2 h6 21. h4 Bf8 22. Kh1 Kh7 {Arnold,G (2251)-Grammatica,A (2209) ICCF 2012 0-1 (70)}) 11... bxc6 (11... Qxc6 12. Qb5 a6 13. Qxc6 bxc6 14. e4 Nb6 15. Be3 Na4 16. b3 Bxc3 17. bxa4 d4 18. Rab1 dxe3 19. Rxb8 e2 20. Rc1 e1=Q+ 21. Rxe1 Bxe1 22. Nc4 {Villeneuve,R (2143)-Souza,J (2155) ICCF 2019 1/2 (26)}) 12. e4 Rd8 13. Qc2 c4 14. dxc4 Nc5 15. exd5 Bf5 16. Qf2 Nd3 17. Qe2 cxd5 18. cxd5 h5 19. h3 Qb6+ 20. Be3 Qxb2 21. Qxb2 Rxb2 22. Rad1 {O'Connell,C (2381) -Huuskonen,M (2385) ICCF 2018 1/2 (36)}) (10... a6 11. Nxc6 bxc6 (11... b5 12. Qc2 (12. Nxe7+ Qxe7 13. Qd1 Bg4 14. Re1 c4 15. Nc2 cxd3 16. Qxd3 Bf5 17. Qd1 Rfd8 18. Nd4 Ne4 19. e3 Bd7 20. Bxe4 dxe4 21. b3 h5 22. Bb2 Bg4 23. Qc2 Rbc8 { Arnold,G (2194)-Llorente Alvarez,J (2109) ICCF 2015 1/2 (39)}) 12... Qxc6 13. e4 c4 (13... dxe4 14. dxe4 e5 15. f5 c4 16. Qe2 Bb7 17. Bg5 gxf5 18. exf5 Qxg2+ 19. Qxg2 Bxg2 20. Kxg2 Ne4 21. Be3 Rfd8 22. Nc2 a5 23. Rae1 f6 24. Re2 Bf8 25. Ba7 {Sedlácek,T (2229)-Jørgensen,B (2315) ICCF 2017 1/2 (26)}) 14. e5 cxd3 15. Qxd3 Bf5 16. Qd1 (16. Qf3 Be4 17. Qd1 Bxg2 18. Kxg2 Ne4 19. Nc2 e6 20. a3 Rfc8 21. Nd4 Qb7 22. Be3 Bf8 23. g4 a5 24. f5 b4 25. cxb4 axb4 26. a4 Bg7 27. fxe6 fxe6 {Sedlácek,T (2229)-Ronce,N ICCF 2017 1/2 (41)}) 16... Qb6+ 17. Qd4 Qxd4+ 18. cxd4 Ne4 19. Be3 b4 20. Bxe4 Bxe4 21. Nb1 a5 22. Nd2 Bd3 23. Rfc1 { Sedlácek,T (2229)-Endsley,B (2225) ICCF 2017 1/2 (25)}) 12. e4 Bd7 (12... c4 13. e5 Ng4 14. dxc4 Qa7+ 15. c5 Qxc5+ 16. Qd4 Qa5 17. h3 Nh6 18. Nc2 f6 19. exf6 Bxf6 20. Qa7 Rb7 21. Qf2 Nf5 22. Kh2 e5 23. Nb4 Qc7 24. Nxa6 {Arnold,G (2233)-Sacripanti,G (2269) ICCF 2013 1/2 (43)}) (12... Rd8 13. e5 Nd7 14. Nc2 a5 15. Ne3 Ra8 16. Bd2 Nb6 17. Qc2 Qa7 18. c4 e6 19. cxd5 Nxd5 20. Kh1 Nb4 21. Bxb4 cxb4 22. Bxc6 Bb7 23. Bf3 a4 24. Qe2 {Arnold,G (2237)-Pavlov,V (2355) ICCF 2012 1/2 (45)}) 13. Nc2 (13. e5 Ng4 14. h3 Nh6 15. g4 f6 16. exf6 exf6 17. Rb1 Rfe8 18. f5 g5 19. Bd2 Nf7 20. Qd1 Bf8 21. Re1 h5 22. c4 d4 23. Rxe8 Rxe8 24. Nc2 Qe5 {Ginderskov,H (2330)-Novikovas,A (2366) ICCF 2008 0-1 (35)}) 13... h5 14. Ne3 (14. h3 Nh7 15. Ne3 c4 16. Rf2 cxd3 17. exd5 Rb6 18. Qc4 Nf6 19. Qxd3 cxd5 20. Nxd5 Nxd5 21. Qxd5 Rfb8 22. Qf3 e5 23. Re2 Bb5 24. Re1 Bc6 25. Qe2 Re8 {Cook,D (2232)-Grobler,D (2234) ICCF 2015 1/2 (56)}) 14... Qa7 (14... h4 15. Qd1 Nh5 16. Bf3 hxg3 17. Bxh5 gxh5 18. Qxh5 c4 19. Rf3 gxh2+ 20. Kxh2 f5 21. Rg3 e5 22. Qh6 Rf7 23. Nxf5 Bxf5 24. exf5 Rxf5 25. Be3 Rf7 26. f5 {Arnold, G (2224)-Krüger,H (2361) ICCF 2012 1-0 (38)}) 15. Re1 Ng4 16. Qc2 Nxe3 17. Bxe3 d4 18. cxd4 cxd4 19. Bd2 a5 20. b3 c5 21. f5 gxf5 22. Bg5 f6 23. Bc1 e5 24. Ba3 Qa6 25. Qe2 (25. Bh3 Rf7 26. Bxf5 Bxf5 27. exf5 Bh6 28. Bc1 Bf8 29. Rb1 a4 30. Qd1 Rh7 31. Re4 axb3 32. axb3 c4 33. dxc4 Qa8 34. Rh4 Bc5 35. h3 d3+ 36. Kh2 Rd8 {Arnold,G (2224)-Gómez Celdrán,F (2264) ICCF 2012 0-1 (51)}) 25... fxe4 26. Qxe4 Rfc8 27. Qg6 Qe6 28. Qxh5 Qf7 29. Qh4 a4 30. Rf1 Bc6 31. Bxc6 Rxc6 32. Qe4 Rbc8 33. bxa4 c4 34. dxc4 Rxc4 35. Rab1 Rxa4 36. Rb7 d3 37. Bb4 Qc4 38. Qf5 Qd5 39. Qxc8+ Bf8 40. Qxf8# {1-0 (40) Arnold,G (2194)-Spagnoli,L (2110) ICCF 2015 Bird's Opening with-1...d5}) (10... Rd8 11. e4 e6 (11... h5 12. exd5 Nxd5 13. Nb5 Qa5 14. Qxa5 Nxa5 15. Nxa7 Bf5 16. Nb5 Bxe5 17. fxe5 Bxd3 18. Rd1 Bxb5 19. Rxd5 Bc6 20. Rxd8+ Rxd8 {Villeneuve,R (2143)-Balcazar Novoa,L (2162) ICCF 2019 1/2 (28)}) 12. Nxc6 bxc6 13. f5 exf5 14. Bf4 Qb6 15. Bxb8 Qxb8 16. exd5 cxd5 17. Qa5 Bd7 18. Rae1 Rc8 19. Re2 h5 20. c4 dxc4 21. Nxc4 Be6 22. Qe1 {Bowen,F (1974)-Mamonovas,V (2166) ICCF 2017 0-1 (65)}) 11. fxe5 Bd7 12. Qh4 (12. Qf4 Nh5 13. Qg5 Bxe5 14. Bxd5 Bf6 15. Qe3 b5 16. Nc2 (16. Bd2 Bh3 (16... Be5 17. Bf3 Nf6 18. Qg5 Be6 (18... h5 19. Nc2 Nh7 20. Qh6 Bh3 21. Rfb1 Bf6 22. Ne1 Rfd8 23. Rd1 b4 24. Qf4 Rd6 25. Kh1 a5 26. Qe3 Ng5 27. Rac1 Re6 28. Qf2 bxc3 29. Bf4 Qd7 30. bxc3 {Arnold,G (2251)-Hill,G (2373) ICCF 2012 0-1 (59)}) 19. Nc2 Nd5 20. Ne3 Nxe3 21. Qxe3 b4 22. Rac1 Qd6 23. b3 bxc3 24. Bxc3 Bd4 25. Bxd4 cxd4 26. Qf4 Qxf4 27. gxf4 Rfc8 28. h4 {Arnold,G (2237)-Iordanyan,E ICCF 2012 1/2 (28)}) 17. Rf2 Bg7 18. Bf3 Nf6 19. Qg5 Bf5 20. g4 h6 21. Qf4 e5 (21... Qxf4 22. Bxf4 Nxg4 23. Bxg4 Bxg4 24. Bxb8 Rxb8 25. e3 Bf5 26. Rd2 h5 27. Kf2 Rb6 28. Re1 Bh6 29. Nc2 Rd6 30. d4 c4 31. Kg3 Be4 32. Rf2 f5 33. h4 {Arnold,G (2210) -Ciesielski,S (2262) ICCF 2015 0-1 (88)}) 22. Qg3 Be6 23. Nc2 (23. h3 Qd7 24. Nc2 a5 25. Bxh6 Bxh6 26. g5 Bg7 (26... e4 27. dxe4 Nh5 28. Bxh5 Bg7 29. Bg4 Rbe8 30. Qf3 Bxg4 31. hxg4 Re5 32. Ne3 Qe6 33. Rd1 Rxe4 34. Nf5 gxf5 35. gxf5 Qc4 36. b3 Rg4+ 37. Kf1 Qe4 38. Qxe4 {Arnold,G (2210)-Balutescu,M (2351) ICCF 2015 1/2 (43)}) 27. gxf6 Bxf6 28. h4 Qe7 29. Rh2 b4 30. h5 g5 31. Be4 bxc3 32. bxc3 g4 33. Ne3 Bg5 34. Nxg4 Bf4 {Arnold,G (2194)-Di Marino,M (2136) ICCF 2015 1/2 (38)}) 23... Rb6 24. h4 Nd5 25. a3 Nf4 26. Raf1 a5 27. Ne1 c4 {Hoynck van Papendrecht,F (2134)-Szerlak,A (2180) ICCF 2015 1/2 (61)}) 16... Qd6 17. Bf3 b4 18. Bd2 Ng7 19. Qf2 bxc3 20. Bxc3 Bh3 (20... Bxc3 21. bxc3 Rb2 22. Ne3 Be6 23. Rfc1 Rd8 24. Rcb1 Rdb8 25. Qe1 h5 26. Rxb2 Rxb2 27. Qc1 Qb8 28. Nd1 Rxa2 29. Rxa2 Bxa2 30. c4 a5 31. Nc3 Bb3 32. Qa3 {Arnold,G (2215)-Deskin,G (2180) ICCF 2017 1/2 (53)}) 21. Rfe1 Bxc3 22. bxc3 {Johansson,K (2449)-Grinev,V (2343) ICCF 2017 1/2 (56)}) (12. Nb5 Qxe5 13. Bf4 Qxe2 14. Bxb8 a6 15. Rfe1 Qxd3 16. Ba7 Rc8 17. Rad1 Qf5 18. Nd4 Bxa4 19. Nxf5 gxf5 20. b3 Bc6 21. Rxe7 Ne4 22. Bxe4 dxe4 23. Rf1 Bf8 {Arnold,G (2282)-Douglas,S (2397) ICCF 2010 0-1 (48)}) 12... Qxe5 13. e4 Qe6 (13... Rbd8 14. Bf4 (14. exd5 Ng4 15. Nc4 (15. Qg5 Bf5 16. h3 h6 17. Qd2 Nf6 18. g4 Bc8 19. Qf2 (19. c4 h5 20. g5 Ne8 21. Rb1 e6 22. Nb5 exd5 23. Qa5 b6 24. Qxa7 Nd6 25. Qc7 dxc4 26. Bf4 Nxb5 27. Qxe5 Bxe5 28. Bxe5 Rxd3 29. Rbd1 Bf5 30. h4 Nd4 {Cook,D (2232)-Bell,I (2319) ICCF 2015 0-1 (33)}) 19... Nxd5 20. Qxc5 Qg3 21. Rf3 Qb8 22. d4 f5 23. g5 Kh7 24. gxh6 Bf6 25. Bd2 b6 26. Qc4 Bb7 {Cook,D (2232)-Sherwood,R (2313) ICCF 2015 0-1 (48)}) 15... Qe2 16. h3 Qxd3 17. Qxe7 Qxc4 18. hxg4 f6 19. Rf4 Qd3 20. Qe3 Qd1+ 21. Rf1 Qxg4 22. Qf2 g5 23. Bf3 Qh3 {Villeneuve,R (2143)-Thomas,T (2121) ICCF 2019 0-1 (61)}) 14... Qe6 15. exd5 Nxd5 16. Rae1 Nxf4 17. Rxe6 Nxg2 18. Kxg2 Bxe6 19. Rd1 (19. Qxe7 Rxd3 20. Nc2 Rd2+ 21. Rf2 Bh3+ 22. Kg1 Rd1+ 23. Ne1 b5 24. Re2 h5 25. Qxc5 Rfd8 26. Qxb5 R8d5 27. Qe8+ Kh7 28. Qxf7 Rf5 29. Qxf5 Bxf5 30. Kf2 Rb1 {Müllhaupt,P (2027)-Sueess,F (2245) ICCF 2017 0-1 (31)}) 19... Rd7 ( 19... h5 20. h3 Bf6 21. Qa4 h4 22. Nc2 hxg3 23. d4 Kg7 24. Ne3 cxd4 25. cxd4 { Koskinen,E (2278)-Huuskonen,M (2288) ICCF 2017 0-1 (32)}) (19... Bf6 20. Qa4 a6 21. Qa5 Bg4 22. Rd2 Bg5 23. Rf2 Be3 24. Rf1 Rxd3 25. Nc4 Bh6 26. Ne5 Rd2+ 27. Rf2 Bh3+ 28. Kxh3 Rxf2 29. Qb6 Bg7 30. Nd7 Re8 31. Nxc5 {Cook,D (2232)-Brasier, J (2295) ICCF 2015 0-1 (37)}) 20. Qa4 b6 21. Kf2 Rfd8 22. Nc2 Bf5 23. Qc6 Bg4 24. Re1 Rxd3 25. Ne3 {Ragnarsson,J (2161)-Hallqvist,N (2146) ICCF 2018 0-1 (29) }) (13... Rbc8 14. exd5 b5 15. Bf4 Qe2 16. Rf2 Qxd3 17. Rd2 Qf5 18. d6 c4 19. dxe7 Qc5+ 20. Kf1 Qxe7 21. Re1 Qd8 22. Nxb5 Rc5 23. Re5 Rxe5 24. Bxe5 Re8 25. Bxf6 {Jean,L (1902)-Almarza Mato,C (2121) ICCF 2019 0-1 (37)}) 14. exd5 Nxd5 { Knöppel,B (2057)-Camps,J (1969) ICCF 2017 1/2 (41)} 15. Qc4 Bc6 16. Qxc5 Rbd8 17. d4 Qd7 18. Nc2 Rc8 19. Qa3 b5 20. Rf2 (20. Qb3 a5 21. a3 a4 22. Qa2 e5 23. dxe5 Rfe8 24. Nd4 Bb7 25. Bf4 Nxf4 26. gxf4 Qg4 27. b4 axb3 28. Qe2 Qxe2 29. Nxe2 Bxg2 30. Kxg2 f6 31. Rab1 fxe5 {Jensen,K (2184)-Peetoom,F (2131) ICCF 2020 1/2 (31)}) 20... Rfe8 21. Ne3 Nf6 22. d5 Bxd5 23. Nxd5 Nxd5 24. Bxd5 Qxd5 25. Be3 Rc7 {Müllhaupt,P (2027)-Salzmann,S (2347) ICCF 2017 0-1 (46)}) (3. c3 Bg7 4. d3 Nc6 (4... c5 5. Qc2 (5. g3 Nc6 6. Bg2 b6 7. O-O e6 8. e4 Nge7 9. Na3 O-O 10. Qe2 Bb7 11. e5 Qd7 12. Bd2 Rac8 13. Nc2 h5 14. Rae1 Nf5 15. Ne3 Nce7 16. Bh3 Nxe3 {Hoynck van Papendrecht,F (2134)-Garus,E (2222) ICCF 2015 1-0 (41) }) 5... Nc6 (5... Nf6 6. e4 Nc6 7. e5 Ng4 8. Be2 (8. h3 Nh6 9. Qf2 d4 10. cxd4 cxd4 11. Be2 O-O 12. O-O f6 13. exf6 Bxf6 14. Nbd2 Nf5 15. Ne4 Be6 16. Nfg5 { 1-0 (16) Mulde,R-Sheth,A ICCF 2009}) 8... h5 9. O-O O-O 10. h3 Nh6 11. Be3 d4 12. Bf2 Nf5 13. Qc1 f6 14. exf6 exf6 15. Nbd2 Be6 16. Re1 dxc3 17. bxc3 { Vestergård,S (2268)-Clowes,M (2358) ICCF 2007 1/2 (27)}) 6. e4 d4 7. cxd4 cxd4 8. Nbd2 Nf6 9. Be2 Bd7 10. Nc4 O-O 11. O-O Rc8 12. Qb3 Qc7 13. Bd2 Qb8 14. Nce5 Nxe5 15. Nxe5 Be6 16. Qb4 {Humphreys,S (2157)-Dempster,D (1627) ICCF 2010 1/2 (29)}) 5. Qc2 (5. Qa4 Bd7 6. Qb3 Nf6 7. Qxb7 O-O 8. e3 Rb8 9. Qa6 Rb6 10. Qa3 Re8 11. Ne5 Nxe5 12. fxe5 Ng4 13. d4 f6 14. Be2 fxe5 15. O-O exd4 16. exd4 e5 { Bachler,R-Hatzl,J ICCF 2007 0-1}) (5. g3 Bg4 6. Bg2 Qd7 7. h3 Bxf3 8. Bxf3 e5 9. Bg2 Nge7 10. O-O O-O-O 11. Qa4 Kb8 12. b4 Nf5 13. Kh2 h5 14. e4 dxe4 15. dxe4 Nd6 16. b5 Ne7 {Bachler,R-Schachinger,M ICCF 2007 0-1 (26)}) 5... e5 6. e4 dxe4 7. dxe4 Qe7 8. Bb5 Bd7 9. Bxc6 (9. fxe5 Nxe5 10. Bxd7+ Nxd7 11. Be3 f5 12. Nbd2 Ngf6 13. O-O fxe4 14. Rae1 exf3 15. Bd4 f2+ 16. Bxf2 Ne5 17. Rxe5 Qxe5 18. Re1 Qxe1+ 19. Bxe1 O-O-O 20. Nf3 Rhe8 {Bachler,R-Kastner,W (2255) ICCF 2007 0-1 (44)}) 9... Bxc6 10. Nxe5 Bxe5 11. fxe5 Qxe5 12. O-O O-O-O 13. Qf2 Qxe4 14. Nd2 Qd5 {Bowen,F (1936)-Toledo García,M (2065) ICCF 2019 1/2 (42)}) (3. d3 Nf6 (3... Bg7 4. e4 (4. e3 c5 5. g3 Nc6 6. Bg2 Nf6 7. O-O O-O 8. Ne5 (8. c3 Bf5 9. Nh4 Bg4 10. Bf3 Bh3 11. Re1 e5 12. fxe5 Nxe5 13. d4 Nxf3+ 14. Qxf3 Re8 15. Na3 cxd4 16. cxd4 g5 17. Ng2 Rc8 18. Rf1 Qd7 19. Bd2 Bg4 {Saxena,D-Oudheusden,W (2294) ICCF 2011 0-1 (25)}) (8. Qe2 b6 (8... Re8 9. Nc3 d4 10. Nb5 a6 11. Na3 dxe3 12. Qxe3 Nd4 13. Nxd4 cxd4 14. Qe2 Rb8 15. Nc4 Bg4 16. Qf2 Be6 17. h3 b5 18. Ne5 Rc8 19. Re1 Bd5 20. Re2 {Kaminski,J (1970)-Marx,P (1999) ICCF 2016 0-1 (56)}) 9. Nc3 Ba6 (9... Bb7 10. Ne5 e6 11. Nxc6 Bxc6 12. e4 b5 (12... Qc7 13. a4 a6 14. Nd1 Nd7 15. e5 d4 16. Bxc6 Qxc6 17. Qg2 Rac8 18. Qxc6 Rxc6 19. b3 f6 20. exf6 Nxf6 21. Nf2 Nd5 22. Re1 a5 23. Ne4 e5 24. fxe5 {Arnold,G (2210) -Efimov,A (1911) ICCF 2015 1-0 (42)}) 13. e5 Nd7 14. Bd2 f6 15. exf6 Qxf6 16. Rae1 Rae8 17. Nd1 b4 18. c3 Qd8 19. cxb4 cxb4 20. Nf2 a5 21. Be3 {O'Connell,C (2377)-Laurenc,P (2378) ICCF 2019 1/2 (41)}) 10. Ne5 Nxe5 11. fxe5 Ne8 12. Nxd5 Rc8 13. e6 f5 14. c4 Bb7 15. e4 Nd6 16. Bg5 Bf6 17. Nxf6+ exf6 18. exf5 Qe7 { Kaminski,J (1884)-Warnest,S (1787) ICCF 2019 1-0 (29)}) (8. Re1 Re8 9. h3 e5 10. Nbd2 e4 11. dxe4 Nxe4 12. Kh2 h6 13. a3 Be6 14. Nxe4 dxe4 15. Nd2 f5 16. Qe2 Qd7 17. Rb1 Rad8 18. Rg1 Ne7 19. Bf1 Qc7 {Christensen,F (2228)-Asiatidis,I ICCF 2016 0-1 (32)}) (8. a4 Be6 9. h3 Qb6 10. Kh2 Rac8 11. Qe1 c4 12. dxc4 Bf5 13. Na3 Be4 14. b3 Qd8 15. Ra2 e6 16. Bb2 Re8 17. Bc3 a6 18. a5 Qc7 {Darmanto, H (2209)-Glaser,K (2278) ICCF 2019 1/2 (87)}) 8... Qc7 (8... Rb8 9. Nc3 d4 10. Bxc6 dxc3 11. Bf3 Nd7 12. Nxd7 Bxd7 (12... Qxd7 13. b3 b5 14. Qe2 a5 15. a4 b4 16. Bg2 Rb6 17. e4 Bd4+ 18. Be3 Rd8 19. Rf2 Bxe3 20. Qxe3 {Látal,F (2182) -Deakin,C ICCF 2020 0-1 (45)}) 13. b3 b5 14. Qe2 Qb6 15. Kg2 a5 16. e4 Bd4 17. Be3 e5 18. Rae1 Kg7 19. h4 f6 20. fxe5 {Maltais,C (2245)-Rodolfo Masera,L (2285) ICCF 2019 1/2 (26)}) 9. Nxc6 bxc6 (9... Qxc6 10. e4 dxe4 11. dxe4 Nxe4 12. Nd2 f5 13. Qe2 Rd8 14. Nxe4 fxe4 15. Bxe4 Bg4 16. Bxc6 Bxe2 17. Re1 bxc6 { Kaminski,J (1970)-Elçi,A (1956) ICCF 2016 0-1 (44)}) 10. e4 dxe4 11. dxe4 e5 12. Nc3 Rd8 13. Qf3 Rb8 14. Rb1 Ne8 15. fxe5 Bxe5 {Alozy,F (1997)-Hemeury,L ICCF 2010 1/2 (53)}) (4. g3 b6 5. Bg2 Bb7 6. e3 c5 7. O-O Nh6 8. c3 O-O 9. Re1 Nc6 10. d4 Rc8 11. dxc5 bxc5 12. e4 dxe4 13. Nfd2 Nf5 14. Bxe4 Nd6 15. Bg2 Qb6 {Söderberg,K (2254)-Suihko,K (2278) ICCF 2020 0-1 (44)}) (4. Nbd2 d4 5. g3 c6 6. Bg2 Nh6 7. O-O Nf5 8. Nc4 b5 9. Nce5 f6 10. Ng4 h5 11. Nf2 h4 12. Nxh4 Nxh4 13. gxh4 Rxh4 14. e4 dxe3 15. Bxe3 Kf7 {Vecek,M (2312)-Lorenz,R (2214) ICCF 2013 1-0 (51)}) 4... dxe4 5. dxe4 Qxd1+ 6. Kxd1 Nc6 (6... Bg4 7. Be2 Nc6 8. c3 Nf6 9. Nbd2 O-O-O 10. Ng5 Rhf8 11. e5 Bxe2+ 12. Kxe2 Nd5 13. Nde4 h6 14. Nf3 b6 15. Rd1 Rg8 16. Bd2 f5 17. Nf2 g5 18. g3 {Maltais,C-Ragnarsson,J (2045) ICCF 2014 1/2 (45)}) 7. c3 (7. Bd3 Bg4 8. Nbd2 e5 9. h3 Bxf3+ 10. Nxf3 exf4 11. Bxf4 O-O-O 12. Rb1 Nf6 13. Bg5 h6 14. Bxf6 Bxf6 15. Ke2 Rhe8 16. c3 Re7 17. Rhf1 Nb8 18. Rbd1 Nd7 {Bruce,R (2100)-Hooker,S ICCF 2020 0-1 (48)}) 7... Nf6 8. e5 (8. Bd3 O-O 9. Rf1 Rd8 10. Kc2 b6 11. Bb5 Bb7 12. Re1 a6 13. Bxc6 Bxc6 14. e5 Be4+ 15. Kb3 Bxf3 16. gxf3 Nh5 17. Na3 Rd3 18. Nc2 Rxf3 19. Nd4 Rf2 {Pröll,H-Holec, M (2182) ICCF 2012 0-1 (39)}) 8... Nd5 9. Bd3 Bg4 10. Be4 O-O-O 11. Ke2 f6 12. Rd1 Be6 13. exf6 exf6 14. Na3 f5 15. Bxd5 {Bassanini,M-Nobel,C (1979) ICCF 2004 0-1 (63)}) 4. c3 (4. e3 Bg7 5. Be2 (5. d4 c5 6. c3 O-O 7. Bd3 b6 8. O-O Ba6 9. Bxa6 Nxa6 10. Nbd2 Nc7 11. Ne5 Nce8 12. b3 Nd6 13. Bb2 cxd4 14. exd4 Rc8 15. Qe2 Nfe4 {Rhodes,J (2402)-Enescu,C (2399) ICCF 2007 1/2 (35)}) 5... O-O ( 5... Nc6 6. O-O Bf5 7. Na3 Qd7 8. c4 O-O-O 9. b4 dxc4 10. d4 c3 11. b5 Nb4 12. Qa4 Nfd5 13. Qxa7 Nb6 14. Nc4 Qd5 15. Nfe5 Bxe5 16. Nxb6+ cxb6 17. fxe5 { Lilleeng,A (2040)-Natskår,A (1997) ICCF 2009 1-0 (33)}) 6. O-O (6. Nc3 Nc6 7. O-O d4 8. Ne4 dxe3 9. Nxf6+ exf6 10. Bxe3 Re8 11. Qd2 Qe7 12. Bf2 Bh6 13. c3 Qd6 14. Bg3 Bd7 15. d4 Ne7 16. Bd3 Nd5 17. Nh4 f5 {Humphreys,S (2157) -Goldschagg,F (2114) ICCF 2010 0-1 (33)}) 6... b6 (6... Nc6 7. Qe1 (7. c3 Re8 8. d4 Ne4 9. Nbd2 Nd6 10. Ne5 Nxe5 11. fxe5 Nf5 12. Nf3 f6 13. Qb3 Bh6 14. e4 Ne3 15. exd5 Kg7 16. Re1 Nxd5 17. Bxh6+ Kxh6 18. c4 {Jan,P-Anguís,M ICCF 2006 1-0}) (7. Bd2 Ng4 8. c3 b6 9. d4 Bf5 10. Nh4 Be4 11. Bxg4 e6 {0-1 (11) Edwardson,Z-Anderson,L (1343) ICCF 2014}) 7... Bg4 8. c3 Bxf3 9. Bxf3 e6 10. e4 dxe4 11. dxe4 e5 12. f5 Ne7 13. Be3 b6 14. Nd2 Rb8 15. Be2 c5 16. h4 Kh8 17. Rd1 Qe8 18. Qg3 {Vogel,P-Åsten,E (1790) ICCF 2016 1-0 (25)}) (6... c5 7. Nc3 ( 7. Qe1 Nc6 8. Nc3 (8. a4 Re8 (8... b6 9. Na3 (9. Ne5 Bb7 10. Nxc6 Bxc6 11. Nd2 Qd6 12. Nf3 Nd7 13. d4 Nf6 14. b3 Ne4 15. Bb2 Qc7 16. Qh4 Nd6 17. Ng5 h6 18. Nf3 Bb7 19. Rac1 c4 20. g4 a6 {Oaker,W (2236)-Rilberg,S (2363) ICCF 2005 1/2 (44)}) 9... Bb7 (9... a6 10. Bd2 Bb7 (10... Qc7 11. c4 e6 12. Bc3 Bb7 13. b3 Rae8 14. Nc2 d4 15. exd4 Nh5 16. dxc5 Bxc3 17. Qxc3 Nxf4 18. Rae1 bxc5 19. d4 cxd4 20. Ncxd4 Nxd4 21. Qxd4 e5 22. Qe3 {Maltais,C (2134)-Höppenstein,M (2355) ICCF 2016 0-1 (40)}) 11. Rb1 Re8 12. b4 cxb4 13. Bxb4 Ng4 14. Bd2 e5 15. Nxe5 Ngxe5 16. fxe5 Nxe5 17. d4 Nd7 18. c4 Rb8 19. cxd5 Nf6 20. Nc4 Qxd5 21. Rf3 { Egan,M (2175)-Pommrich,R (2139) ICCF 2019 1/2 (51)}) 10. c3 (10. Qh4 Nd7 11. Qh3 Bc8 12. Qh4 e5 13. Qxd8 Rxd8 14. Nb5 exf4 15. exf4 Nf8 16. Bd1 a6 17. Nc3 Rb8 18. Bd2 b5 19. axb5 axb5 20. Re1 Ne6 21. f5 gxf5 {Bode,D (2334)-Kuhne,D (2348) ICCF 2014 0-1 (60)}) (10. Bd2 Ne8 11. Bc3 d4 12. exd4 Nxd4 13. Nxd4 cxd4 14. Bb4 a5 15. Bd2 Nd6 16. Qf2 Rc8 17. Bf3 Qc7 18. Bxb7 Qxb7 19. Qf3 Qxf3 20. Rxf3 Rc6 21. g4 e6 {Oren,I (2309)-Hýbl,V (2327) ICCF 2007 1/2 (32)}) 10... e6 11. Rb1 Rc8 (11... Re8 12. b4 Rb8 13. bxc5 bxc5 14. e4 a6 15. e5 Nd7 16. Nc2 Qc7 17. Be3 Na5 18. Qd2 Nb6 19. Rfc1 Nxa4 20. Bd1 c4 21. Nb4 Nc5 22. Bxc5 Qxc5+ 23. d4 {Beyer Lecaros,A (2028)-Jiménez Ariza,J (2378) ICCF 2016 0-1 (46)}) 12. b4 Ba8 13. a5 c4 14. dxc4 bxa5 15. c5 Ne4 16. Bb2 axb4 17. cxb4 Bxb2 18. Rxb2 a5 19. b5 Nb4 20. Nc2 {Maltais,C (2108)-Kurgansky,V (2373) ICCF 2015 1/2 (41)}) (8... Bf5 9. Nh4 (9. Bd2 Re8 10. Nc3 Rc8 11. Ne5 Nxe5 12. fxe5 Ng4 13. d4 cxd4 14. exd4 Qb6 15. Nb5 Rxc2 16. a5 Qc6 17. Nxa7 Qe6 18. Bd1 Rxd2 19. Qxd2 Bh6 20. Qc3 Be3+ {Maltais,C (2108)-Turowski,P (2141) ICCF 2015 1/2}) 9... Bg4 10. Nc3 d4 11. Nd1 Nb4 12. Qd2 Qc7 13. e4 Bd7 14. f5 Rac8 15. c3 Nc6 16. Nf2 gxf5 17. Nxf5 Bxf5 18. exf5 Nd5 19. Ng4 dxc3 20. bxc3 {Egan,M (1975)-Ruiz-Jarabo,F (2084) ICCF 2007 0-1 (34)}) (8... Qc7 9. Qh4 (9. Nc3 a6 10. e4 d4 11. Nd1 Nb4 12. Qd2 Ng4 13. Ne1 Nc6 14. h3 Nf6 15. a5 Bh6 16. g4 Ne8 17. Ng2 Bd7 18. Nf2 f6 19. Qe1 Nd6 20. Bd2 {Velker,W (2246)-Hagen,T (2270) ICCF 2009 0-1 (53)}) 9... Bg4 10. Nc3 Nb4 11. Bd2 a6 12. e4 Bxf3 13. Bxf3 d4 14. Nd1 Rad8 15. b3 e6 16. Rc1 b5 17. axb5 axb5 18. Nf2 Ra8 19. Bxb4 cxb4 20. e5 {Green,P (2041) -López-Neiger,M (1775) ICCF 2015 1/2 (40)}) (8... Be6 9. Bd2 Qb6 10. a5 Qxb2 11. Nc3 d4 12. Na4 Qxc2 13. e4 Rac8 14. e5 Nd5 15. Qf2 Nc3 16. Rfc1 Nxe2+ 17. Qxe2 Qb3 18. Nxc5 Qd5 19. Nxe6 Qxe6 {Roynet,S (1925)-Denzin,M (1917) ICCF 2020} ) (8... Bd7 9. Na3 Qb6 10. Qh4 h5 11. Rb1 a6 12. Bd2 Qc7 13. c4 Rfd8 14. cxd5 Nxd5 15. f5 gxf5 16. Qxh5 Qd6 17. Nh4 e6 18. Nc4 Qe7 19. a5 Be8 20. Nf3 { Keene,N-Corish,A (2236) ICCF 2017 1/2 (53)}) 9. Ne5 (9. Nbd2 Qc7 10. Qh4 Nb4 11. Bd1 c4 12. dxc4 dxc4 13. Ra3 Nbd5 14. Be2 c3 15. Nc4 Ne4 16. Bd3 cxb2 17. Bxb2 Bf6 18. Be5 Bxh4 19. Bxc7 Bf2+ {Hoynck van Papendrecht,F (2134)-Greig,S (2223) ICCF 2015 1/2 (34)}) (9. Qg3 Bf5 10. h3 a6 11. Bd2 Qd6 12. Na3 Rad8 13. Rab1 Rb8 14. a5 Qc7 15. Qe1 Rbd8 16. Nh4 Bd7 17. Nf3 e5 18. fxe5 Nxe5 19. Nxe5 Qxe5 20. Qf2 Qe7 {Modestino,M (2216)-Jarecki,M (2136) ICCF 2018 1/2 (40)}) 9... Qc7 10. Qg3 Bf5 (10... Nd7 11. Nxc6 Qxc6 (11... bxc6 12. Nc3 Nb8 13. Bd2 Na6 14. e4 Rb8 15. b3 Nb4 16. Rac1 Bd4+ 17. Kh1 Bd7 18. Nd1 Bg7 19. Qf2 Na2 20. Rb1 Bd4 {Bowen,F (1979)-Price,D (2015) ICCF 2016 1-0 (64)}) 12. Nc3 e5 13. e4 d4 14. Nd5 Nb6 15. Nxb6 axb6 16. b3 exf4 17. Bxf4 Be6 18. Bg4 Bxg4 19. Qxg4 b5 20. axb5 Qxb5 21. Qg5 Qc6 22. h3 {Maltais,C (2070)-Milde,L (2169) ICCF 2014 1/2}) 11. Nc3 a6 12. Bf3 (12. Nxc6 Qxc6 13. a5 c4 14. Bd2 Rad8 15. Nd1 Nd7 16. Bc3 e5 17. fxe5 Nxe5 18. Nf2 Qd6 19. Rfe1 h5 20. Qf4 Nc6 21. Qxd6 Rxd6 22. Bf3 Rd7 23. e4 dxe4 {Egan,M (2281)-Kappes,D (2296) ICCF 2012 0-1 (39)}) 12... Nb4 13. Rf2 ( 13. Qf2 Be6 (13... c4 14. e4 dxe4 {1/2 (14) Jalas,A (1797)-Kjeldsen,K ICCF 2010 }) 14. e4 (14. Bd1 Nd7 15. Nf3 Bg4 16. h3 Bxf3 17. Bxf3 e6 18. Na2 Rac8 19. Kh2 Qa5 20. Bd1 Nc6 21. Bd2 Qc7 22. Nc3 {Maltais,C-Tedesco,M (1903) ICCF 2014 1-0 (71)}) 14... d4 15. Nb1 Nd7 16. Nxd7 Bxd7 17. Bd1 c4 18. dxc4 Qxc4 19. e5 Red8 20. Nd2 Qd5 21. b3 Bf5 22. Nc4 d3 23. Nb6 Qe6 24. c3 Nc2 {Morelli,A (2191) -Kürten,D (2130) ICCF 2010 1/2 (32)}) 13... Be6 14. e4 dxe4 15. dxe4 Nd7 16. Nxd7 Bxd7 17. Be3 Bd4 18. Nd1 Bc6 19. Rd2 Rad8 {Perry,D (2376)-Copar,A (2355) ICCF 2005 1/2 (50)}) (8. c3 Bf5 (8... Qc7 9. Nbd2 (9. Qg3 b6 10. Nbd2 Ba6 11. Ne5 Nxe5 12. fxe5 Ne4 13. dxe4 Bxe2 14. Rxf7 Rxf7 15. e6 Rf1+ 16. Nxf1 Rf8 17. Bd2 Be5 18. Qh4 Bxf1 19. Rxf1 Bxh2+ {0-1 (19) Thommen,J (1785)-Sharpe,S (1913) ICCF 2010}) (9. d4 Bg4 10. Ne5 Bxe2 11. Qxe2 Ne4 (11... cxd4 12. exd4 Rac8 13. Be3 Qb6 14. Na3 Rc7 15. Rab1 Ne4 16. Nxc6 Rxc6 17. Rbc1 {Velez Arana, J-Fernandez Gonzales,G (1897) ICCF 2007 0-1 (56)}) 12. Nd2 f5 13. Nxe4 fxe4 14. Bd2 e6 15. b3 Rac8 16. Rac1 c4 17. Rb1 b6 18. Qg4 Rf5 19. Qe2 Rff8 20. Qg4 { 1/2 (20) Oren,I (2314)-Chouari,W (2470) ICCF 2008}) (9. Qh4 e5 10. fxe5 (10. Nxe5 Nxe5 11. fxe5 Qxe5 12. Na3 h6 13. Nc2 Re8 14. Bd2 Bf5 15. Rae1 c4 16. e4 cxd3 17. Bxd3 dxe4 18. Be2 g5 19. Qf2 Bg6 20. Be3 Qe6 21. Ra1 Red8 {Öunmaa,A (2056)-Zuñiga,I (2335) ICCF 2009 0-1 (35)}) 10... Nxe5 11. Na3 Bg4 12. Nb5 Qa5 13. a4 a6 14. Na3 Rfe8 15. e4 dxe4 16. Nxe5 Bxe2 17. Rxf6 Rxe5 18. Nc4 Qd8 19. Nxe5 Qxf6 20. Qxf6 Bxf6 {Bruce,R (1894)-Schmalz,P (1960) ICCF 2016 0-1 (55)}) 9... Rd8 (9... e5 10. Nxe5 Nxe5 11. fxe5 Qxe5 12. e4 (12. Nf3 Qc7 13. Qh4 Re8 14. Bd2 h6 15. Rae1 Ng4 16. Bd1 g5 17. Qg3 Qxg3 18. hxg3 Bd7 19. e4 dxe4 20. Rxe4 Rxe4 21. dxe4 Re8 22. Bb3 Be6 23. Bc2 Rd8 {Ramos Mora,J (1896) -Sarakenidis,N ICCF 2013 0-1 (48)}) 12... Bd7 13. Qf2 dxe4 14. Nxe4 Nxe4 15. dxe4 Rae8 16. Bd3 Qd6 17. Rd1 Bg4 18. Bf4 Qc6 19. Re1 Rd8 20. Bc2 Qb5 21. Rab1 {Moser,M (1836)-Welti,M (1999) ICCF 2011 0-1 (52)}) 10. Qh4 Bf5 11. Re1 (11. e4 dxe4 12. dxe4 Bxe4 13. Nxe4 Nxe4 14. f5 gxf5 15. Ng5 Nxg5 16. Bxg5 Qb6 17. Rab1 Rd5 18. Bc4 Re5 19. Kh1 Na5 20. Bd3 h6 21. Bf4 Rd5 22. Qh3 Qf6 {Fister,B (2204) -Ciucurel,S (2393) ICCF 2007 1-0 (36)}) (11. Ne1 b5 12. Bf3 Bc8 13. Nc2 Rb8 14. e4 c4 15. dxc4 bxc4 16. e5 Qb6+ 17. Kh1 Bf5 18. Ne1 Ne8 19. g4 Bc8 20. Bg2 f6 21. Ndf3 Rb7 22. Nc2 fxe5 {Fister,B (2204)-Depasse,J ICCF 2007 1/2 (46)}) 11... a6 12. Bf1 d4 13. e4 Bc8 14. e5 Nd5 15. Ne4 b6 16. Bd2 dxc3 17. bxc3 h6 18. Rac1 f5 19. exf6 Nxf6 20. Qg3 {Fister,B (2212)-Cadillon Costa,L (2277) ICCF 2006 1/2 (31)}) (8... b6 9. Nbd2 Qc7 (9... Qd6 10. Qh4 Ba6 11. Re1 (11. Rf2 Rab8 12. e4 dxe4 13. dxe4 Bxe2 14. Rxe2 Qd3 15. Re1 Rbd8 16. e5 Nd5 17. Ne4 f6 18. Qh3 Nc7 19. exf6 exf6 20. f5 Rde8 21. fxg6 hxg6 22. Qg4 g5 {Fister,B (2235) -Bobel,P (2176) ICCF 2008 1/2 (42)}) 11... Rad8 12. Rb1 Bc8 13. e4 Qc7 14. e5 Ng4 15. Nf1 f6 16. d4 Nh6 17. Qf2 cxd4 18. cxd4 fxe5 19. dxe5 Ng4 20. Qh4 b5 21. Ng5 {Fister,B (2370)-Pheby,I (2418) ICCF 2011 1/2 (51)}) (9... Ng4 10. Nb3 a5 11. a4 Nf6 12. e4 dxe4 13. dxe4 Nxe4 14. Bb5 Qd5 15. c4 Qe6 16. Ne5 Bxe5 17. fxe5 f5 18. exf6 Rxf6 19. Rf4 Rxf4 20. Bxf4 Bb7 21. Qe2 {Bruce,R-Herman,B ICCF 2013 0-1 (36)}) 10. Qh4 (10. d4 Bf5 11. h3 Rac8 12. g4 Be6 13. Ne5 Nxe5 14. dxe5 Ne4 15. Nxe4 dxe4 16. c4 Rcd8 17. Rb1 Bd7 18. b3 f6 19. exf6 Bxf6 20. Bb2 Bc8 21. Bxf6 exf6 {Schmidt,T (2086)-Gavrijski,D (2137) ICCF 2018 1/2 (30)}) 10... Ba6 (10... e5 11. fxe5 Nxe5 12. Nxe5 Qxe5 13. Nf3 Qh5 14. Qg3 Qg4 15. Qd6 Qe6 16. Qf4 {1/2 (16) Fister,B (2263)-Flitsch,G (2316) ICCF 2008}) 11. Re1 (11. Rb1 e5 12. fxe5 Nxe5 13. Nxe5 Qxe5 14. Nf3 Qd6 15. Qa4 Bb7 16. Bd2 (16. Qh4 Rfe8 17. Bd2 Re7 18. Rbd1 Rae8 19. Bc1 h6 20. Ne1 {Moser,M (1913)-Milde,L (2070) ICCF 2013 0-1 (28)}) 16... Rfe8 17. Rbd1 h6 18. Ne1 Bc6 19. Qh4 a5 20. Nc2 Ra7 21. Be1 Kh7 22. Bg3 Qe7 {Fister,B (2204)-Sobry,S (1885) ICCF 2007 1/2 (37)}) (11. Rf2 Rad8 12. Ne5 Ne8 13. Ndf3 Nd6 14. e4 Bf6 15. Qh6 c4 16. Nxc6 Qxc6 17. exd5 Qxd5 18. d4 Bc8 19. Ng5 Bxg5 20. Qxg5 Nf5 21. Bf3 Qa5 22. Bd2 Qb5 {Öunmaa,A (2046)-Tõnisson,P (2336) ICCF 2012 0-1 (32)}) (11. a4 h6 12. Nb1 Bc8 13. Nbd2 Ng4 14. Nb3 Rd8 15. e4 dxe4 16. dxe4 Nf6 17. e5 Nd5 18. Bc4 Be6 19. a5 Rac8 20. axb6 axb6 21. h3 Rb8 22. Re1 Bc8 {Andreassen,E (2204)-Baranyuk,A (2204) ICCF 2011 1/2 (35)}) 11... Rad8 12. e4 (12. Rb1 e6 13. b3 Ne7 14. g4 d4 15. c4 dxe3 16. Nf1 Qxf4 17. Nxe3 Nc6 18. Rf1 h6 19. h3 Nd4 20. Nxd4 Qxd4 21. Qg3 Nd7 22. Bb2 Be5 23. Bxd4 Bxg3 {Oren,I (2314)-Ernazarov,N (2467) ICCF 2008 0-1 (45)}) 12... c4 13. e5 cxd3 14. Bf1 Nd7 15. b4 Bc4 16. a4 Rc8 17. e6 Bf6 18. Qg4 fxe6 19. Nxc4 dxc4 20. Qxe6+ {Schrade,A-Roth Jr.,P (1719) ICCF 2017 1/ 2 (44)}) (8... d4 9. Na3 Nd5 10. cxd4 cxd4 11. e4 Ne3 12. Bxe3 dxe3 13. Nc4 Be6 14. Nxe3 Qb6 15. Qd2 Bxb2 16. Rab1 Bc3 17. Qxc3 Qxe3+ 18. Rf2 Qxf4 19. Rxb7 Rfc8 20. Rb5 {Andreassen,E (2157)-Glørstad,T (2245) ICCF 2010 1/2 (50)}) (8... Bg4 9. Nbd2 Qc7 10. Nb3 b6 11. d4 cxd4 12. exd4 Ne4 13. Be3 Nd6 14. Ne5 Bf5 15. Bf3 Be4 16. Nd2 Bxf3 17. Ndxf3 e6 18. Nxc6 Qxc6 19. Ne5 Qc7 20. Qe2 { Andreassen,E (2317)-De Meye,J (2036) ICCF 2009 0-1 (35)}) (8... a5 9. a4 Bf5 10. Na3 Re8 11. Bd2 e5 12. fxe5 Nxe5 13. Nxe5 Rxe5 14. Nb5 b6 15. Rd1 Qe7 16. e4 dxe4 17. d4 cxd4 18. cxd4 Rd5 19. Bg5 h6 20. Bh4 {Fister,B (2204)-Dutra,A (2408) ICCF 2007 0-1 (47)}) (8... Re8 9. Nbd2 e5 10. Nxe5 Nxe5 11. fxe5 Rxe5 12. e4 dxe4 13. Nxe4 Nxe4 14. dxe4 Rxe4 15. Qf2 Qc7 16. Bd3 Re8 17. Bb5 Rf8 18. Be3 b6 19. Bf4 Qb7 20. Rad1 {Schmidt,T (2086)-Cremerius,A (2076) ICCF 2018 0-1 (57)}) (8... Qb6 9. Nbd2 c4 10. d4 Bf5 11. b4 Ng4 12. Bd1 Bd3 13. h3 Bxf1 14. Nxf1 Nf6 15. Bc2 a5 16. bxa5 Qxa5 17. Ng3 Rfb8 {0-1 (17) Thommen,J (1785) -Thompson,G ICCF 2010}) (8... Qd6 9. Qh4 Rd8 10. Nbd2 Bf5 11. Re1 h6 12. Bf1 Qc7 13. e4 dxe4 14. dxe4 Be6 15. f5 g5 16. Qh3 Bc8 17. e5 Nd5 18. e6 fxe6 19. fxe6 Rf8 20. Ne4 {Aristegui,M-Grabowski,B (1948) ICCF 2016 1-0 (49)}) 9. Nbd2 ( 9. Ne5 Nxe5 10. fxe5 Nd7 11. d4 Qb6 12. b4 cxd4 13. cxd4 Nxe5 14. dxe5 Bxe5 15. Nc3 Rac8 16. Na4 Qd6 17. Bb2 Bxh2+ 18. Kh1 Bg3 19. Qd1 Rc2 20. Rf3 Rfc8 { Bruce,R (1774)-Katz,R ICCF 2013 0-1 (41)}) 9... Qb6 (9... Qc7 10. Nb3 (10. Qg3 Rad8 11. Nh4 Bc8 12. d4 Ne4 13. Qe1 cxd4 14. exd4 Nd6 15. Ndf3 e6 16. Bd3 f6 17. Be3 Bd7 18. Qe2 Rfe8 19. Rac1 Rc8 20. Rc2 Qa5 21. a3 Qb6 {Bruce,R (1908) -Smyth,S (1978) ICCF 2015 1/2 (42)}) (10. Qh4 h6 11. e4 dxe4 12. dxe4 Bxe4 13. Nxe4 Nxe4 14. f5 gxf5 15. Bxh6 Qd6 16. Bf4 Qg6 17. Nd2 Bf6 18. Qh3 Ng5 19. Bxg5 Bxg5 20. Nb3 c4 21. Bxc4 e6 {Fister,B (2263)-Kubicki,T (2467) ICCF 2009 1/2 (30)}) 10... b6 11. Qg3 Rad8 12. Nbd2 d4 13. cxd4 cxd4 14. e4 Be6 15. Ng5 Bd7 16. b3 h6 17. Nh3 Rc8 18. Bb2 Nb4 19. Rfc1 Qb8 20. Nc4 Bxh3 21. Qxh3 {Kaminski, J-Atuán,J (2099) ICCF 2008 0-1 (42)}) 10. Nh4 (10. d4 Rac8 11. Ne5 Nxe5 12. fxe5 Ne4 13. Nxe4 Bxe4 14. Bf3 Bxf3 15. gxf3 f6 16. f4 Rf7 {0-1 (16) Andreassen,E (2317)-Littke,H (2232) ICCF 2009}) (10. h3 c4 (10... Rad8 11. Qf2 Qc7 12. Nh4 Bc8 13. e4 e5 14. f5 c4 15. exd5 Nxd5 16. Nxc4 b5 17. Ne3 Nf4 18. Rd1 Nxe2+ 19. Qxe2 Qe7 20. Qf2 Bf6 21. g3 Rd6 22. a4 {Schmidt,T (2086)-Garus,E (2088) ICCF 2018 0-1 (46)}) (10... Qc7 11. g4 Bd7 12. e4 dxe4 13. Nxe4 b6 14. Qh4 Rad8 15. f5 gxf5 16. Nxf6+ exf6 17. g5 fxg5 18. Bxg5 f6 19. Bf4 Qb7 20. Kh2 Ne7 21. Rg1 {1/2 (21) Fister,B (2204)-Sadowski,M (2235) ICCF 2007}) 11. d4 Qa5 12. Qd1 Rab8 13. g4 Be6 14. Ng5 Bc8 15. e4 b5 16. Bf3 dxe4 17. Bg2 Nd5 18. Bxe4 e6 19. f5 Qd8 20. fxg6 hxg6 21. Ndf3 f6 {Bruce,R (1911)-Smyth,S (1983) ICCF 2017 1-0 (27)}) 10... Bd7 (10... Bg4 11. Bxg4 Nxg4 12. Nhf3 Rad8 13. d4 Nb8 14. Nb3 Na6 15. Qh4 Nf6 16. Nbd2 Qe6 17. Ne5 Rc8 18. g4 Ne4 19. f5 Qd6 20. Nef3 Qf6 21. Nxe4 Qxh4 22. Nxh4 {Öunmaa,A (2046)-Puskar,E (2232) ICCF 2012 0-1 (29)}) 11. Qg3 (11. e4 c4+ 12. Kh1 cxd3 13. Bxd3 dxe4 14. Nxe4 Rad8 15. Qe2 Qc7 (15... Bg4 16. Nxf6+ exf6 17. Qxg4 Rxd3 18. Qe2 Rd7 19. f5 Re7 {Öunmaa,A (2046) -Dmitriev,V (2305) ICCF 2012 0-1}) 16. Nxf6+ exf6 17. Be3 f5 18. Nf3 Ne7 19. Bxa7 Nd5 20. Qf2 Rfe8 21. Bc2 Bb5 22. Rfe1 Bc4 {Öunmaa,A (2046)-Otspere,U (2185) ICCF 2012 0-1 (30)}) 11... Rad8 (11... Rae8 12. Rf2 e5 13. f5 e4 14. dxe4 Nxe4 15. Nxe4 dxe4 16. f6 Bh8 17. Rf4 Nd8 18. Qf2 h6 19. Qe1 Bxf6 20. Qd1 Re7 21. g3 Bg7 22. Bc4 Ne6 23. Rf2 {Bruce,R (1958)-Whitted,D (1981) ICCF 2016 0-1 (50)}) 12. Nhf3 Bf5 13. Nh4 Bc8 14. Nhf3 Rfe8 15. Ne5 Nxe5 16. fxe5 Nd7 17. Nf3 f6 18. exf6 exf6 19. a4 a5 {Andreassen,E (2317)-Sukhonos,V ICCF 2009 0-1 (35)}) (8. Qh4 b6 (8... Bf5 9. c3 (9. Nc3 Rc8 10. Ne5 Nb4 11. Bd1 d4 12. Nb5 a6 13. Na3 dxe3 14. Bxe3 b5 15. Bc1 Qd6 16. Kh1 Rfd8 17. Bf3 Be6 18. Bb7 Rc7 19. Bf3 Nd7 20. Ng4 f5 {Moser,M (1913)-Lang,F ICCF 2013 0-1 (34)}) 9... Rc8 (9... Qb6 10. Nbd2 (10. Ne5 Nxe5 11. fxe5 Nd7 12. d4 f6 13. Bf3 fxe5 14. Bxd5+ e6 15. g4 Bxb1 16. Bxe6+ Qxe6 17. Rxb1 Rxf1+ {0-1 (17) Gonet Boisson,G-Roubaud,D ICCF 2009}) 10... Rad8 11. h3 Qa6 12. Nb3 b6 13. Rd1 Ne8 14. g4 Bc8 15. Re1 Qb7 16. e4 dxe4 17. dxe4 f6 18. Be3 Nd6 19. Nbd2 e5 20. fxe5 Nxe5 21. Nxe5 {Troia,M (1800)-Nucci,L (2210) ICCF 2015 1/2 (32)}) (9... Re8 10. d4 h5 11. Ne5 Ne4 12. Nd2 Nxd2 13. Bxd2 Qb6 14. Bc1 f6 15. Nxc6 Qxc6 16. h3 c4 17. Rf2 Kf7 18. Bd1 a5 19. Bc2 e6 20. Re2 Bxc2 21. Rxc2 {Aristegui,M-Iarriccio,D ICCF 2016 1/2 (39)}) 10. Nbd2 Re8 11. Ne5 Qb6 12. g4 Be6 13. Nxc6 Rxc6 14. Bf3 Rd8 15. Rf2 Rc7 16. e4 dxe4 17. dxe4 Ne8 18. f5 Bc8 19. Nc4 Qa6 20. Ne3 {David,G (2438)-Perlo,G (2443) ICCF 1999 0-1}) (8... Bg4 9. Nbd2 (9. Nc3 e6 10. e4 Nd4 11. Nxd4 cxd4 12. Bxg4 dxc3 13. e5 cxb2 14. Bxb2 Nxg4 15. Qxg4 Qb6+ 16. Kh1 Qxb2 {0-1 (16) Clayton,G (1725)-Svítil,R (1733) ICCF 2014}) (9. c3 Rb8 10. a4 Qb6 11. Na3 Na5 12. Bd1 Bxf3 13. Bxf3 Nb3 14. Rb1 Rbd8 15. Qf2 Qa5 16. Qc2 Qxa4 17. Bd1 c4 18. e4 Qa5 19. e5 Nd7 20. dxc4 Nxc1 {Clayton,G (1750)-Wood,B (1821) ICCF 2013 0-1 (44)}) 9... Qc7 (9... e5 10. fxe5 Nxe5 11. d4 cxd4 12. Nxd4 Bxe2 13. Nxe2 Re8 14. Nf3 Nc4 15. Rb1 Nxe3 16. Bxe3 Rxe3 17. Ng5 Rxe2 18. Rxf6 Qxf6 19. Qxh7+ Kf8 20. Nh3 Rae8 {0-1 (20) Gonet Boisson,G-Svaton,F (1919) ICCF 2009}) (9... Rc8 10. c3 e6 11. e4 Bxf3 12. Bxf3 b5 13. Qh3 Qb6 14. e5 Nd7 15. Kh1 a5 16. a4 b4 17. c4 Rcd8 18. cxd5 exd5 19. Nb3 Ne7 20. Be3 d4 21. Bf2 {Öunmaa,A (2056)-Peut, A (1875) ICCF 2009 1-0 (34)}) (9... Bf5 10. c3 Qb6 11. Re1 a6 12. Bf1 Be6 13. e4 Rad8 14. e5 c4+ 15. d4 Nh5 16. b3 cxb3 17. Nxb3 f5 18. Rb1 Bc8 19. c4 e6 20. cxd5 Rxd5 21. Bc4 {Zimmermann,F (2383)-Knostenbergs,J (2203) ICCF 2006 1-0 (32) }) 10. h3 Bxf3 11. Nxf3 Rad8 12. Bd2 e6 13. a3 a5 14. Rab1 b5 15. Rfd1 Ne7 16. Qe1 Nc6 17. c4 dxc4 18. dxc4 b4 19. axb4 axb4 20. b3 {Senior,L (1902)-Hipwell, C (1661) ICCF 2018 1-0 (38)}) (8... Qc7 9. Nc3 (9. Nbd2 Bf5 (9... e5 10. fxe5 Nxe5 11. Nxe5 Qxe5 12. Nf3 Qe7 13. Bd2 Re8 14. Rae1 Ng4 15. Ng5 h6 16. Bxg4 hxg5 17. Qg3 Be5 18. Qf3 Bxg4 19. Qxg4 f5 20. Qf3 Qd6 21. h3 {Vestergård,S (2241)-Feldborg,B (2238) ICCF 2009 0-1 (54)}) 10. h3 a5 11. c3 a4 12. a3 Rfd8 13. e4 dxe4 14. dxe4 Bxe4 15. Nxe4 Nxe4 16. Ng5 Nxg5 17. fxg5 e6 18. Be3 Be5 19. Bc4 Ra5 20. Qf2 b5 {Andreassen,E (2180)-Pospísil,L (2499) ICCF 2009 0-1 (40)}) 9... Bf5 (9... Rd8 10. a4 (10. d4 cxd4 11. Nb5 Qb6 12. Nbxd4 Bg4 13. c3 Rac8 14. Bd2 Bxf3 15. Nxf3 Qxb2 16. Rfb1 Qa3 17. Rxb7 Na5 18. Rxa7 Qc5 19. Ra6 Ne4 20. Rc1 Nxd2 21. Nxd2 Qxe3+ {Clayton,G (1740)-Allies,M ICCF 2013 0-1}) 10... a6 11. Bd2 b6 12. Nd1 Ng4 13. Nf2 Nxf2 14. Rxf2 Ra7 15. g4 Qd6 16. Raf1 Qf6 17. Qxf6 Bxf6 18. g5 Bg7 19. Ra1 Rc7 20. Kg2 f5 21. Re1 {Rhodes,J (2395) -Stephan,D (2482) ICCF 2007 0-1 (73)}) 10. a3 Rad8 11. Rb1 a6 12. b3 b5 13. Nd1 Ne8 14. Bb2 Bxb2 15. Rxb2 f6 16. b4 c4 17. dxc4 dxc4 18. Nc3 Nd6 19. a4 Qb6 20. Qf2 {Nicotera,A-Bleker,F (2374) ICCF 2011 0-1 (44)}) (8... Re8 9. Ne5 (9. Nbd2 e5 10. Nxe5 Nxe5 11. fxe5 Rxe5 12. Nb3 b6 13. e4 dxe4 14. Bg5 Bf5 15. Nd2 Qd4+ 16. Kh1 exd3 17. Bxf6 Qxh4 18. Bxh4 Rxe2 19. Nf3 dxc2 20. Rac1 Bxb2 {Gonet Boisson,G-Nouveau,L (1902) ICCF 2009 0-1}) (9. Nc3 b6 10. Ne5 Bb7 11. Bf3 a6 12. a4 Nb4 13. Bd1 d4 14. exd4 cxd4 15. Ne2 Rc8 16. c3 dxc3 17. bxc3 Nxd3 18. Nxd3 Qxd3 19. Bb2 Nd5 {Clayton,G (1725)-Lüthi,T ICCF 2014 0-1}) 9... Qc7 10. Nxc6 Qxc6 11. a4 e5 12. fxe5 Rxe5 13. Nc3 Bd7 14. Bd2 Rae8 15. Rae1 Qb6 16. a5 Qd6 17. Qg3 Qe7 18. Bf3 Bc6 19. Nd1 Re6 20. Qh4 {Bode,D (2334)-Dorer,M (2347) ICCF 2014 1/2 (56)}) (8... b5 9. Nbd2 Bb7 10. c3 a6 11. Nb3 Qd6 12. Ne5 Nxe5 13. fxe5 Qxe5 14. Nxc5 Bc6 15. d4 Qd6 16. a4 bxa4 17. Bxa6 Ne4 18. Nxe4 dxe4 19. Be2 e5 20. h3 {Clayton,G (1740)-Lam Choong Wai,E ICCF 2013 0-1 (30)}) 9. Nbd2 (9. a4 Ba6 10. Na3 Ne8 11. Rb1 Nd6 12. c3 e6 13. Qxd8 Raxd8 14. Re1 Rc8 15. Bd2 Ne7 16. e4 dxe4 17. dxe4 Bb7 18. e5 Ne4 19. Bc1 Rcd8 20. a5 f5 { Engelhardt,G (2380)-Repanic,F (2076) ICCF 2010 1/2 (43)}) (9. Ne5 Bb7 10. Nd2 Nd7 11. Nxc6 Bxc6 12. Qg3 e5 13. f5 Nf6 14. fxg6 hxg6 15. b3 Nh7 16. Nf3 e4 17. Ne5 Bb5 18. Bb2 Qd6 19. Rae1 d4 20. exd4 cxd4 {Andreassen,E (2180)-Castellano, L (2365) ICCF 2009 0-1 (34)}) (9. Nc3 Bb7 10. Nd1 Ne8 11. Qg3 (11. c3 Nd6 12. e4 d4 13. Bd2 Ba6 14. Nf2 c4 15. dxc4 Bxc4 16. Rfe1 Kh8 17. Ng5 h6 18. Ng4 Bxe2 19. Rxe2 h5 20. f5 Qd7 21. Ne6 d3 22. Nxg7 Kxg7 {Öunmaa,A (2096)-Beltins,G (1962) ICCF 2010 1/2 (54)}) 11... Nd6 12. Nf2 e5 13. fxe5 Nf5 14. Qh3 Nxe5 15. Nxe5 Bxe5 16. c3 Bc8 17. Ng4 Nh4 18. e4 h5 19. Nh6+ Kg7 20. Qe3 d4 {Eilmes,D (2258)-Thierry,R (2261) ICCF 2005 1/2 (40)}) 9... Ba6 10. a3 (10. c3 e6 11. a3 Qc7 12. Re1 Rad8 13. e4 dxe4 14. Nxe4 Nxe4 15. dxe4 Bxe2 {1/2 (15) Duchardt,A (2215)-Faure,T (2229) ICCF 2015}) (10. e4 dxe4 11. Ng5 Nd4 12. Bd1 e3 13. Nde4 h6 {0-1 (13) Fister,B (2235)-Ruiz-Vidal,P (2332) ICCF 2008}) (10. Ne5 Nxe5 11. fxe5 Nd7 12. e6 fxe6 13. Nf3 Qc7 14. Qxe7 Rae8 15. Qh4 Nf6 16. Qa4 Bb7 17. Bd2 e5 18. Ng5 Bc6 19. Qb3 Kh8 20. Rad1 Qd7 21. Qa3 a5 {Pallás Muiño,J (2318)-Díaz Rubí,F (2229) ICCF 2018 0-1 (40)}) 10... e6 11. Rb1 Ne7 12. Ne5 Nf5 13. Qf2 d4 14. exd4 Nxd4 15. Bd1 Nd7 16. Ndf3 Rc8 17. Be3 Nxe5 18. Nxe5 Nf5 19. Re1 Bb7 { Öunmaa,A (2056)-Andersen,L (2102) ICCF 2009 0-1 (52)}) (8. Ne5 Nxe5 9. fxe5 Ng4 10. d4 cxd4 11. exd4 Qb6 12. Kh1 Qxd4 {0-1 (12) Gonet Boisson,G-Soldano,G ICCF 2009}) (8. Kh1 Qc7 9. Nbd2 b6 10. Qh4 Re8 11. e4 Nb4 12. Bd1 dxe4 13. dxe4 Rd8 14. a3 Nc6 15. c3 b5 16. Re1 c4 17. Bc2 a6 18. Nf1 h6 19. Ne3 e6 {Kaminski,J (1964)-Razumikhin,A (2243) ICCF 2010 1/2 (35)}) (8. Bd1 Bd7 (8... Re8 9. Qg3 Bf5 10. Nh4 e6 11. Nd2 Rc8 12. Re1 c4 13. e4 c3 14. bxc3 dxe4 15. Nxf5 exf5 16. Ba3 Nd5 17. dxe4 Nxc3 {0-1 (17) Ward,B (1609)-Sutton,A (2169) ICCF 2019}) (8... b6 9. e4 Qd7 10. e5 Ng4 11. c3 Ba6 12. Ng5 Nh6 13. Bc2 f6 14. exf6 exf6 15. Qe6+ Rf7 16. Qxd7 Rxd7 17. Nf3 {Johansson,C (2162)-Castelló Benavent,J (2173) ICCF 2007 0-1 (56)}) 9. Nbd2 Qc7 10. e4 dxe4 11. Nxe4 Nxe4 12. dxe4 e5 13. f5 gxf5 14. Qg3 f4 15. Qg5 f5 16. Nh4 fxe4 17. Bg4 Qd8 18. Qxd8 Raxd8 19. Bxd7 Rxd7 {Ward,B (1670)-Primrose,J (1983) ICCF 2015 0-1 (26)}) (8. h3 b6 9. Qh4 Ba6 10. a4 e6 11. Nc3 d4 12. exd4 cxd4 13. Nb5 Rc8 14. Bd2 Bb7 15. Rac1 a6 16. Na3 Ne7 17. Ne5 Nfd5 18. Bf3 g5 {Hoynck van Papendrecht,F (2134)-Jørgensen,B (2233) ICCF 2015 0-1 (31)}) 8... d4 (8... Bf5 9. Nd1 Qb6 10. Bd2 Nb4 11. Bxb4 cxb4 12. Nd4 Bd7 13. h3 Rfc8 14. Bf3 a5 15. c4 dxc4 16. dxc4 Rxc4 17. Nf2 e6 18. Rc1 { 1-0 (18) Carter,M (1778)-Zehr,L (1960) ICCF 2013}) (8... Nb4 9. Bd1 Qc7 10. e4 Rd8 11. e5 Ng4 12. a3 Nc6 13. h3 Nh6 14. Qf2 b6 15. Bd2 a6 16. b4 d4 17. Ne4 { 1-0 (17) Oren,I (2314)-Ergen,C (2250) ICCF 2008}) (8... h6 9. Ne5 Nb4 10. Bd1 Ng4 11. a3 Nxe5 12. axb4 cxb4 13. fxe5 bxc3 14. Qxc3 f6 15. exf6 Rxf6 16. Rxf6 Bxf6 17. Qb3 Kg7 18. Bf3 e6 19. Bd2 Qc7 20. c4 {Hall,G-Hoshino,E ICCF 2006 1-0 (35)}) (8... Be6 9. a3 Qb6 10. Na4 Qb5 11. b3 d4 12. c4 dxc3 13. d4 Qxb3 14. Nxc5 Qd5 15. Nxe6 Qxe6 16. Qxc3 Rac8 17. Qd3 Na5 18. Ne5 Nd7 19. Rb1 Nxe5 20. fxe5 {Fister,B (2303)-Hagen,T (2285) ICCF 2010 1/2 (37)}) 9. Nd1 (9. Ne4 Nd5 10. Nxc5 Nxe3 (10... Qc7 11. exd4 Nxd4 12. Nxd4 Bxd4+ 13. Kh1 Qxc5 14. Bd2 Qxc2 15. Rc1 Qxb2 16. Bf3 Rd8 17. a4 Qa3 18. Bxd5 Rxd5 19. Bb4 Qxa4 20. Bxe7 Bf5 21. Bg5 Re8 22. Qh4 {Krüger,J (2056)-Arnold,E (2042) ICCF 2018 0-1}) 11. Bxe3 dxe3 12. c3 Qd6 13. d4 Qxf4 14. Ne5 Qh6 15. Nxc6 bxc6 16. Bf3 Rb8 17. Qe2 e5 18. dxe5 Bxe5 19. g3 Bf5 20. Rae1 Rb5 {Abbou,J-Dempster,D (2083) ICCF 2005 0-1 (31) }) 9... dxe3 (9... a5 10. e4 Bd7 11. Nf2 a4 12. a3 b5 13. Bd2 Qb6 14. c3 dxc3 15. bxc3 b4 16. Ne5 b3 17. Nc4 Qc7 18. e5 Nd5 19. Bf3 Nb6 20. Nxb6 Qxb6 21. Be3 {Arnold,G (2268)-Chekmasov,S (2357) ICCF 2011 1/2 (46)}) (9... b6 10. e4 Nb4 11. Qd2 Nc6 12. a3 Qd7 13. Qe1 Ba6 14. Nf2 Rad8 15. Ne5 Qc7 16. Nxc6 Qxc6 17. b3 Bc8 18. Bf3 Qc7 19. Nd1 e6 20. Bd2 Ne8 21. Nb2 {Arnold,G (2406)-Dutra,A (2434) ICCF 2005 1/2 (82)}) (9... Qb6 10. a3 (10. e4 Nb4 11. Qd2 c4 12. a3 c3 13. bxc3 dxc3+ 14. Qe3 Nxc2 15. Qxb6 axb6 16. Rb1 Bg4 17. Nxc3 Rfc8 18. Bb2 Nxa3 19. Rbc1 Ne8 20. e5 Nc7 21. Nd4 {Roynet,S (1941)-Wolf,M (1905) ICCF 2020 1/2 (48)}) 10... Bd7 11. Qh4 Ne8 12. e4 f6 13. Qg3 Nd6 14. Nf2 e5 15. h4 Nf7 16. Rb1 Rac8 17. h5 exf4 18. Bxf4 g5 19. Bd2 a5 20. Nh2 Nce5 {1/2 (20) Geus, A-Daatselaar,J (2203) ICCF 2007}) 10. Nxe3 Nd5 (10... Nd4 11. Bd1 (11. Nxd4 cxd4 12. Nc4 b5 13. Bf3 Nd5 14. Ne5 Bb7 15. a4 a6 16. Qe4 f6 17. Nc6 Bxc6 18. Qe6+ Kh8 19. Qxc6 Ne3 20. Bxe3 dxe3 21. Qxa8 Qxa8 22. Bxa8 Rxa8 {Ott,P (1601) -Tanner,G ICCF 2019 1-0 (46)}) 11... b6 12. Ne5 Nd7 13. c3 Nxe5 14. fxe5 Nc6 15. Bf3 Bb7 16. Qe2 f5 17. exf6 exf6 18. Nc4 (18. Qc2 Qd7 19. Qb3+ Kh8 20. Nc4 g5 21. Be3 g4 22. Be4 {Oren,I (2330)-Skeels,J (2420) ICCF 2006 1/2 (29)}) 18... Qd7 19. Bf4 Rae8 20. Qf2 Re6 21. Rae1 Rxe1 22. Rxe1 {Bobel,P (2283)-Bontems,C (2084) ICCF 2013 1/2 (28)}) (10... Qc7 11. Nd2 (11. Nc4 Be6 12. Ng5 Bxc4 13. dxc4 e5 14. c3 h6 {Arnold,G (2297)-Turko,S (2255) ICCF 2010 0-1 (65)}) 11... b6 12. Bf3 Ba6 13. f5 Rad8 14. Ne4 Nd4 15. Nxf6+ exf6 16. Qf2 Rfe8 17. Be4 Rxe4 18. dxe4 Bxf1 19. Nxf1 Qe7 20. c3 Nc6 21. Qc2 Ne5 22. Be3 {Roynet,S (1941) -Sevillano Leal,J ICCF 2020 0-1 (62)}) 11. Nc4 (11. Nxd5 Qxd5 12. c3 (12. Qf2 b6 (12... Nd4 13. Nxd4 cxd4 14. Bf3 Qb5 15. a4 Qb6 16. a5 Qa6 17. b3 Rd8 18. Ba3 e6 19. Bc5 Qb5 20. b4 Bf8 21. Bxd4 Qxb4 22. c3 Qe7 23. a6 Bg7 24. Bxg7 { Arnold,G (2390)-Hickman,H (2298) ICCF 2008 1-0 (25)}) 13. c3 Bf5 14. Rd1 Rae8 15. h3 Rc8 16. Be3 Rfd8 17. g4 Bd7 18. Rd2 Bf6 19. Bf1 Be6 20. Ng5 Bxg5 21. fxg5 Ne5 22. c4 Qf3 23. Bf4 Qxf2+ {Arnold,G (2282)-Spierenburg,P (2039) ICCF 2010 1-0 (56)}) 12... b6 (12... Bf5 13. Be3 Rad8 14. Qf2 Bxd3 15. Bxd3 Qxd3 16. Bxc5 b6 17. Be3 Rd7 18. Rae1 Qc4 19. f5 gxf5 20. Nh4 e6 21. Nf3 Qxa2 22. Qe2 Qa4 23. Kh1 Rc8 24. Ra1 {Puertas Covarrubias,F-Barón González,A (2078) ICCF 2007 0-1 (65)}) 13. Be3 (13. Qh4 Ba6 14. Ng5 h6 15. Nh3 Bxd3 16. Bxd3 Qxd3 17. f5 h5 18. Bg5 f6 19. Bc1 Rfd8 20. fxg6 Qxg6 21. Nf4 Qg4 22. Qxh5 Qxh5 23. Nxh5 Ne5 24. Be3 Rd5 {Malnar,A-Pranjic,M ICCF 2006 1/2 (69)}) 13... Ba6 (13... Bf5 14. Qf2 Rae8 (14... Rfe8 15. Rfd1 e5 16. Rd2 exf4 17. Bxf4 Rad8 18. a3 Rd7 19. Rf1 Rde7 20. Ne1 Bc8 21. Nc2 Ba6 22. Ne3 Qd7 23. Nc4 h6 24. h4 Re6 25. Bf3 Ne7 26. Ne3 {Fister,B (2221)-Svensson,C (2216) ICCF 2007 1/2 (78)}) 15. Rfd1 e5 16. Rd2 exf4 17. Bxf4 Rd8 18. Qh4 Rfe8 19. Bf1 b5 20. a3 a5 21. Bg5 Ra8 22. Bf6 b4 23. Bxg7 Kxg7 24. Qf2 bxc3 25. bxc3 {Fister,B (2235)-Putman,M (2033) ICCF 2008 1/2 (25)}) 14. Rd1 Rad8 15. d4 Bxe2 16. Qxe2 cxd4 17. Nxd4 Bxd4 18. Bxd4 Qxa2 19. f5 Rd6 20. fxg6 hxg6 21. Be3 Rxd1 22. Rxd1 Rd8 {Moser,M-Svaralová,M ICCF 2011 0-1 (53)}) 11... Qc7 (11... b5 12. Nce5 Ncb4 13. Bd1 f6 14. a3 Na6 15. Nc6 Qb6 16. Na5 c4+ 17. Kh1 cxd3 18. cxd3 e6 19. b4 Nac7 20. Bd2 Re8 21. Rc1 Bd7 22. Bb3 Rac8 23. Ba2 {Arnold,G (2406)-Korze,D (2417) ICCF 2005 1/2 (47)}) 12. Qh4 (12. c3 Nxf4 13. Bxf4 Qxf4 14. Nfe5 Qg5 15. Nxc6 bxc6 16. Bf3 Be6 17. Bxc6 Rab8 18. Qf2 Rfd8 19. Rad1 Bf6 20. Qe2 Kg7 21. Be4 h5 22. Na5 {Arnold,G (2428) -Schön,W (2410) ICCF 2006 0-1 (44)}) 12... b5 13. Nce5 Nd4 14. Bd1 (14. Nxd4 cxd4 15. Bf3 Bb7 16. Rf2 Rac8 17. a4 a6 18. Qh3 Nb4 19. Bd1 Qd6 20. Ng4 h5 21. Ne5 Rc7 22. b3 Nd5 23. Bf3 Nxf4 24. Bxf4 Bxe5 25. Bxe5 Qxe5 {Hall,G-Destruels Moreno,F (2249) ICCF 2006 1/2 (41)}) 14... Nf5 15. Qf2 f6 16. Ng4 Bb7 17. g3 e5 18. fxe5 fxe5 {Ginderskov,H (2330)-Zawadka,A (2418) ICCF 2008 0-1 (26)}) (7. Nbd2 Nc6 8. c3 (8. e4 Ng4 9. Nb3 dxe4 10. dxe4 Qb6 11. c3 Rd8 12. Qe1 c4+ 13. Nbd4 Nxd4 14. Nxd4 Bxd4+ 15. cxd4 Rxd4 16. Bxg4 Rxe4+ 17. Qf2 Qxf2+ 18. Rxf2 Bxg4 19. Bd2 Rd8 {Lima,A (1963)-Steel,A (2097) ICCF 2015 0-1}) 8... Qc7 (8... d4 9. Nb3 dxc3 10. bxc3 b6 11. Bb2 Bb7 12. c4 Qc7 13. Qc1 Rad8 14. Ne5 e6 15. Nxc6 Qxc6 16. Rf2 Qd7 17. a4 Ne8 18. a5 f6 19. d4 Nd6 20. dxc5 {Andreassen,E (2180)-Geluk,P (2074) ICCF 2009 1/2 (39)}) 9. e4 (9. d4 Ng4 10. Nb1 Qb6 (10... Rd8 11. Ne5 Nf6 12. Nd2 Bf5 13. a4 (13. Qe1 a6 14. Nb3 Nxe5 15. fxe5 Ne4 16. Qd1 Qc6 17. Qe1 a5 18. Qh4 a4 19. Nd2 f6 20. Bg4 Bxg4 21. Qxg4 Nxd2 22. Bxd2 fxe5 23. dxc5 Qxc5 24. Qe6+ Kh8 {Bito,L (2000)-Poludnyakov,V (2406) ICCF 2010 0-1 (45)}) 13... h5 14. Ndf3 Ne4 15. Nd2 Rac8 16. Nxe4 dxe4 17. Bd2 Nxe5 18. fxe5 Qd7 19. Rf2 a6 20. Bf1 f6 21. exf6 exf6 22. b4 {Andreassen,E (2316)-Shaw, S (2358) ICCF 2007 0-1 (39)}) 11. h3 (11. a4 c4 12. e4 dxe4 13. Ng5 Nf6 14. Nd2 Nxd4 15. cxd4 Qxd4+ 16. Kh1 h6 17. Nh3 Bxh3 18. gxh3 Rfc8 19. Nb1 Nd5 20. Qxd4 Bxd4 21. Rd1 Be3 22. Nc3 Bxc1 {Andreassen,E (2316)-Dillenburg,A (2379) ICCF 2007 0-1 (44)}) 11... Nf6 12. Nbd2 cxd4 13. cxd4 Bf5 14. Nb1 Nb4 15. Nc3 Bc2 16. Qe1 Ne4 17. Ne5 Bxe5 18. fxe5 f5 19. exf6 exf6 20. a4 a5 {Bruce,R (1911) -Colebrook,M (1815) ICCF 2017 1-0 (52)}) 9... Qxf4 10. exd5 Nxd5 11. Ne4 Qc7 12. Nxc5 Nd4 13. Ne4 Nxe2+ (13... Nf5 14. Re1 Qb6+ 15. Kh1 Nfe3 16. Qd2 f5 17. Nf2 f4 18. d4 g5 19. h3 Bf5 20. Bd3 Qg6 21. c4 (21. Qe2 Rad8 22. Bxe3 Nxe3 23. Kg1 h5 24. Rac1 Rd6 25. Bxf5 Qxf5 26. Nh2 Qg6 27. Nd1 Nf5 28. Nf2 Rb6 29. Rb1 Rff6 30. Qc4+ Rf7 31. Qd3 Kh7 32. a4 Ra6 {Andreassen,E (2316)-Matheis,T (2354) ICCF 2007 1/2 (40)}) 21... Bxd3 {0-1 (21) Andreassen,E (2317)-Shevtsov,A ICCF 2009}) 14. Qxe2 e5 15. c4 Nf4 16. Bxf4 exf4 17. Rae1 Bf5 18. Qd2 Rfe8 { Andreassen,E (2204)-Johansen,O (2247) ICCF 2011 0-1 (47)}) (7. a4 Nc6 (7... b6 8. Na3 Ba6 9. Rb1 Nc6 10. c3 Qd6 11. Nb5 Qe6 12. Nc7 Qc8 13. Nxa8 Qxa8 14. b4 cxb4 15. cxb4 Nd8 16. Ba3 Bc8 17. Nd4 Ne6 18. Nxe6 Bxe6 19. Bf3 {Spencer,A (1590)-Nichol,J ICCF 2017 1-0 (45)}) 8. Na3 (8. c3 Qc7 (8... Qd6 9. Na3 a6 10. Ng5 e5 11. e4 h6 12. exd5 Nxd5 13. Ne4 Qe7 14. fxe5 Nxe5 15. Nc4 Rd8 16. Nxe5 Bxe5 17. Bf3 Nf4 18. Bxf4 Bxf4 19. g3 Be5 20. Qe2 {Eilmes,D (2321)-Acedanski,J (2368) ICCF 2006 1/2 (35)}) (8... Bg4 9. Nbd2 Qc7 10. e4 dxe4 11. Nxe4 c4 12. Nf2 cxd3 13. Bxd3 e6 14. Nxg4 Nxg4 15. Qe2 Na5 16. Rb1 Nb3 17. Be3 Rfd8 18. Kh1 Nxe3 19. Qxe3 Rd6 {Eilmes,D (2321)-Huybrecht,F (2187) ICCF 2006 0-1 (48)}) 9. Na3 (9. d4 b6 10. Ne5 Bf5 11. Nd2 Ne4 12. Nxe4 dxe4 13. Bd2 Rad8 14. b4 Nxe5 15. fxe5 f6 16. exf6 exf6 17. bxc5 bxc5 18. Rb1 Be6 19. Rb5 c4 20. Qb1 f5 { Andreassen,E (2314)-Nilson,B ICCF 2007 1-0 (36)}) 9... Rd8 10. Bd2 a6 (10... Bg4 11. b4 Bxf3 12. Bxf3 e5 13. Nb5 Qe7 14. bxc5 e4 15. dxe4 dxe4 16. Be2 Qxc5 17. Nd4 Nd5 18. Qe1 Na5 19. f5 Nc4 20. fxg6 hxg6 21. Rxf7 Kxf7 22. Qf1+ { Eilmes,D (2321)-Zawadski,A (2233) ICCF 2006 1/2 (33)}) 11. Qe1 Na5 12. Rb1 Nb3 13. Bd1 Nxd2 14. Qxd2 c4 15. dxc4 dxc4 16. Nd4 Bf5 17. Bc2 Bd7 18. Qe2 Rac8 19. Rbd1 e5 {Eilmes,D (2321)-Cimicki,D (2358) ICCF 2006 0-1 (42)}) (8. Ne5 Qd6 9. d4 a6 10. c3 Bf5 11. Nd2 Qc7 12. Bd3 Bxd3 13. Nxd3 c4 14. Ne5 Na5 15. Qf3 e6 16. e4 Rfe8 17. Ra2 Nb3 18. exd5 Nxd2 19. Bxd2 exd5 {Lindqvist,B (2378)-Seelig, J (2294) ICCF 2008 1/2 (47)}) (8. Kh1 b6 (8... Qc7 9. Nc3 Bg4 10. e4 dxe4 11. dxe4 Rad8 12. Qe1 Nd4 13. Nxd4 cxd4 14. Nd5 Nxd5 15. Bxg4 Ne3 16. Bxe3 dxe3 17. Qxe3 Qxc2 18. Qxa7 Qxe4 19. Bf3 Qxf4 20. Qxb7 {Kaminski,J (1877)-DeCredico,R ICCF 2009 1-0 (26)}) 9. Ne5 Bb7 10. Nxc6 Bxc6 11. Nd2 Qe8 12. a5 e5 13. f5 b5 14. Qe1 a6 15. Qh4 e4 16. d4 Nd7 17. c3 Qd8 18. Qg3 Qb8 19. Qh4 Bf6 {Renard, S-Ponting,A ICCF 2015 1/2 (42)}) (8. Bd2 Ng4 9. h3 Nh6 10. c3 Nf5 11. Qe1 Nd6 12. Na3 Na5 13. Rd1 Nb3 14. e4 e6 15. e5 Nf5 16. g4 Nxd2 17. Qxd2 Ng3 18. Rf2 Bd7 {Hoynck van Papendrecht,F (2134)-Almarza Mato,C (2213) ICCF 2015 0-1 (49)}) 8... Qb6 (8... a6 9. c3 (9. c4 Qc7 10. Bd2 Rd8 11. Qe1 Be6 12. Ng5 Bg4 13. Nf3 e5 14. fxe5 Nxe5 15. Nxe5 Qxe5 16. cxd5 Qh5 17. Bd1 Bxd1 18. Rxd1 Nxd5 19. a5 Bxb2 20. Nc4 Bg7 {Oren,I (2309)-Vayser,V (2452) ICCF 2007 0-1 (108)}) (9. Bd2 Re8 10. Ne5 Nxe5 11. fxe5 Nd7 12. d4 cxd4 13. exd4 Qb6 14. c3 Nxe5 15. a5 Qa7 16. Kh1 Nc6 17. Bf3 e6 18. b4 Qb8 19. Be3 Bd7 20. Qd2 Ne7 {Oren,I (2309)-Larin, I ICCF 2007 1/2 (48)}) 9... b5 (9... Qc7 10. Bd2 e5 11. fxe5 Nxe5 12. Nxe5 Qxe5 13. Nc2 Bf5 14. Be1 Rfe8 15. Bg3 Qe6 16. a5 Rad8 17. Ra4 g5 18. h4 h6 19. hxg5 hxg5 {Lilleeng,A (2134)-Bronts,G (2296) ICCF 2010 0-1 (48)}) 10. Bd2 bxa4 11. Qxa4 Bd7 12. Qc2 Qb6 13. Rfb1 Rfb8 14. Qc1 a5 15. Qe1 Bf5 16. c4 e6 17. h3 h5 18. Ne5 Nxe5 19. fxe5 Nd7 20. g4 {Lilleeng,A (2134)-Ylönen,O (1718) ICCF 2010 1/2 (34)}) (8... b6 9. c3 a6 10. Rb1 Bf5 11. c4 dxc4 12. Nxc4 Qc7 13. Qe1 Rad8 14. e4 Bg4 15. Bd2 Bxf3 16. Rxf3 b5 17. Ba5 Nxa5 18. Qxa5 Qb7 19. Ne3 Rd4 20. axb5 {Marqués Taltavull,A-Marín Millán,J ICCF 2006 1/2 (25)}) (8... Re8 9. c3 ( 9. Ne5 Qb6 (9... Nd7 10. Nxc6 bxc6 11. e4 Rb8 12. Bf3 Nf8 13. c3 e5 14. f5 gxf5 15. exf5 Bxf5 16. Bxd5 cxd5 17. Rxf5 Ng6 18. Nc2 Qd7 19. Rf2 f5 20. Ra2 e4 21. dxe4 {Oren,I (2309)-Hebels,A (2463) ICCF 2007 0-1 (39)}) 10. Bf3 Be6 11. c4 Qc7 12. Nxc6 bxc6 13. Bd2 Qd7 14. Bc3 d4 15. exd4 cxd4 16. Ba5 Ng4 17. Nc2 Bf5 18. Ra3 e5 19. h3 Ne3 20. Nxe3 dxe3 {Oren,I (2309)-Schmidt,T (2538) ICCF 2007 0-1 (31)}) 9... e5 10. fxe5 Nxe5 11. Nxe5 Rxe5 12. d4 Re8 13. dxc5 Qe7 14. Bb5 Rd8 15. c6 bxc6 16. Bxc6 Bg4 17. Qe1 Rab8 18. Nc2 Qc7 19. Bb5 Ne4 20. Nd4 {Schulze, P (2115)-Chocenka,D (2461) ICCF 2018 0-1 (25)}) 9. Bd2 (9. c3 Rd8 10. Rb1 a6 11. Qe1 Bf5 12. b3 Qc7 13. Nh4 Bg4 14. Bxg4 Nxg4 15. h3 Nf6 16. e4 dxe4 17. dxe4 e6 18. Nf3 Na5 19. Nc4 Nxc4 20. bxc4 Nd7 {O'Connell,C (2399)-Sherwood,R (2310) ICCF 2015 1/2 (34)}) 9... Bf5 (9... Ne8 10. Bc3 Nd6 11. Qe1 d4 12. a5 Qc7 13. exd4 cxd4 14. Bd2 Bf5 15. Qh4 Nxa5 16. g4 Bc8 17. b4 Nc6 18. b5 Nd8 19. Ng5 h6 20. Ne4 Nxe4 21. dxe4 {Oren,I (2309)-Baklanov,V (2447) ICCF 2007 0-1 (61)}) 10. Rb1 Rfd8 (10... h6 11. Kh1 Rfd8 12. Nh4 Bd7 13. Qe1 Rac8 14. c3 e5 15. e4 exf4 16. Bxf4 Re8 17. exd5 Na5 18. b4 {1/2 (18) Marqués Taltavull, A-Aguilar Gómez,P (2283) ICCF 2006}) 11. Qe1 a5 12. b3 h6 13. h3 Ne8 14. g4 Bd7 15. c4 Nb4 16. cxd5 Nd6 17. Nc4 Nxc4 18. dxc4 e6 {Oren,I (2330)-Uecker,D (2316) ICCF 2007 1/2 (28)}) (7. Ne5 Nbd7 (7... Qc7 8. Nc3 Nbd7 (8... Rd8 9. b3 Nc6 10. Nxc6 Qxc6 11. Bf3 Qe6 12. Qe1 Ng4 13. Bxg4 Qxg4 14. Bb2 d4 15. Ne4 b6 16. Ng5 Bb7 17. e4 f6 18. h3 Qd7 19. Nf3 Rf8 20. f5 {Rhodes,J (2402)-Nývlt,Z (2459) ICCF 2007 1-0 (66)}) 9. d4 Rd8 10. Nb5 Qb6 11. a4 Nxe5 12. fxe5 Ne4 13. c4 Be6 14. Bf3 Rac8 15. b3 dxc4 16. Bxe4 a6 17. Qf3 axb5 18. a5 Qc7 19. Bxb7 {Öunmaa, A (2104)-Macchia,G (1751) ICCF 2010 1/2 (47)}) (7... Nfd7 8. Nxd7 Bxd7 9. Bf3 ( 9. Nc3 Bc6 10. Bf3 Na6 11. Qe1 Nc7 12. e4 e6 13. a4 f5 14. Bd2 Qd7 15. a5 Rad8 16. Rd1 Rf7 17. Qg3 Nb5 18. exd5 exd5 {Milnes,A (2256)-Vaughan,D (2210) ICCF 2012 1/2}) 9... Be6 10. Nc3 Nc6 11. a3 Rc8 12. Rb1 Re8 13. Ne2 Qb6 14. b3 Red8 15. Bd2 a5 16. Qe1 Qa7 17. Ng3 b5 18. f5 Bxf5 19. Nxf5 {Rhodes,J (2402)-Souza, S (2584) ICCF 2007 1/2 (45)}) (7... Be6 8. Nc3 d4 (8... Qc7 9. Nb5 Qb6 10. c4 dxc4 11. dxc4 Nc6 12. Nxc6 Qxc6 13. Bf3 Ne4 14. Qc2 f5 15. Na3 Rad8 16. Rb1 Qb6 17. b3 Nc3 18. Rb2 Ne4 {Richter,F-Julkowski,T ICCF 2020 0-1 (36)}) 9. Na4 Nfd7 10. Nxd7 Nxd7 11. e4 b5 12. f5 gxf5 13. exf5 Bd5 14. c4 bxc4 15. dxc4 Bc6 16. Bf3 Rc8 17. Bxc6 Rxc6 18. Bd2 d3 19. Bc3 {Geus,A (2154)-Meraiya,H (2074) ICCF 2010 1-0 (36)}) 8. d4 (8. a4 Qc7 9. d4 Ne4 10. Na3 a6 11. c4 e6 12. Bf3 Rd8 13. b3 f5 14. Bb2 b6 15. cxd5 exd5 16. Bxe4 fxe4 17. Rc1 Nxe5 18. fxe5 Be6 19. Nb1 Rf8 {Malnar,A (2375)-Roebuck,D (2284) ICCF 2016 1/2 (27)}) (8. Nf3 Qc7 (8... b5 9. Qe1 Qc7 10. Bd2 a6 11. Nc3 Bb7 12. Nd1 e5 13. fxe5 Nxe5 14. Nxe5 Qxe5 15. Qf2 Rfe8 16. Bf3 Qd6 17. a3 Rac8 18. Bc3 Rc7 19. b4 h5 20. h3 {Krüger,J (2164) -Sokolov,E (2176) ICCF 2011 0-1 (44)}) 9. Nc3 a6 10. a4 e5 11. fxe5 Nxe5 12. Nxe5 Qxe5 13. d4 Qd6 14. dxc5 Qxc5 15. Qd4 Qd6 16. Qf4 Qc6 17. Bf3 Bf5 18. Ne2 Bxc2 19. Nd4 Qc8 {Lilleeng,A (2134)-Kurbasov,S (2280) ICCF 2010 0-1 (40)}) (8. Nxd7 Bxd7 9. Nd2 Bc6 10. Nf3 Nd7 11. d4 Rc8 12. b3 cxd4 13. exd4 Nf6 14. Bb2 b5 15. Bd3 Ne4 16. Ne5 Qb6 17. Qe2 Rfd8 18. Kh1 e6 19. Rfc1 f5 {Arnold,G (2224) -Maack,K (2240) ICCF 2012 1/2 (36)}) 8... b6 (8... Ne4 9. Nd2 Ndf6 (9... cxd4 10. Nxe4 dxe4 11. exd4 Nb6 (11... Qb6 12. Kh1 Rd8 13. c3 Nxe5 14. fxe5 Bxe5 15. Qc2 Bg7 16. Qxe4 Bf5 17. Rxf5 gxf5 18. Qxf5 Qg6 19. Qh3 Qe4 20. Qg3 Qg6 21. Qh3 Qe4 22. Qg3 Qg6 23. Qh3 {Pallister,S (1880)-Armiger,P ICCF 2016 1/2 (25)}) 12. a4 a5 13. c3 Be6 14. Qc2 f6 15. Ng4 h5 16. Ne3 f5 17. Bd2 Rc8 18. Qd1 Qc7 19. Bb5 Rfd8 20. b3 Kh7 21. Rb1 {Korman,J (1821)-Nemec,Z (2177) ICCF 2020 0-1 (43)} ) 10. Nxe4 Nxe4 11. c3 b6 12. Nd3 Bb7 13. Nf2 Nd6 14. b4 cxb4 15. cxb4 Qd7 16. Bd2 Rfc8 17. a4 Rc7 18. Nd3 Qe8 19. Bf3 Rac8 20. b5 {Malnar,A (2354)-Maver,I (2332) ICCF 2014 1/2 (37)}) 9. b3 Bb7 10. Nd2 Ne8 11. Bd3 Nd6 12. Qe2 Nf6 13. Bb2 Nfe4 14. Bxe4 dxe4 15. dxc5 bxc5 16. Rfd1 Qc7 17. Nec4 Bxb2 18. Nxb2 Rfd8 { Malnar,A (2354)-Hacker,C (2506) ICCF 2014 1/2 (37)}) (7. Kh1 Nc6 8. Ne5 Nxe5 ( 8... Qd6 9. Nxc6 Qxc6 10. Bf3 Be6 11. a4 Rfd8 12. b3 Qc7 13. Na3 Ne4 14. Nb5 Qb6 15. d4 Qc6 16. c3 a6 17. Bxe4 dxe4 18. Na3 b5 19. axb5 axb5 20. Bb2 { Kaminski,J (1877)-Casella,S (1807) ICCF 2009 0-1 (54)}) 9. fxe5 Nd7 10. d4 f6 11. e6 Nb8 12. c4 Bxe6 13. cxd5 Bxd5 14. e4 Bxe4 15. Nc3 Bf5 16. Qb3+ Kh8 17. dxc5 Qc8 18. Bf3 Nc6 {Kaminski,J (1981)-Sylvander,D (1955) ICCF 2015 0-1 (41)}) (7. c3 Nc6 (7... b6 8. Nbd2 (8. Na3 Nc6 (8... Bb7 9. Bd2 Ne8 10. Rb1 Nd6 11. Qe1 e6 (11... b5 12. d4 c4 13. Nc2 Nd7 14. h3 Nf6 15. Qd1 Bc8 16. Ne5 Nfe4 17. Be1 a5 18. Bf3 Be6 19. Kh2 h5 20. g4 hxg4 21. hxg4 Qe8 22. Bxe4 Nxe4 23. f5 { Schmidt,T (2136)-Muljadi,P (2251) ICCF 2017 0-1 (33)}) 12. b4 Nd7 13. bxc5 Nxc5 14. d4 Nce4 15. c4 Rc8 16. Rc1 a5 17. cxd5 Bxd5 18. Ra1 Nxd2 19. Qxd2 Ne4 20. Qb2 {Schmidt,T (2136)-Skerlík,S (2240) ICCF 2017 0-1 (51)}) 9. Qc2 Bb7 10. e4 Ne8 11. Kh1 Qd7 12. Be3 Rd8 13. Rad1 d4 14. cxd4 cxd4 15. Bd2 Nd6 16. Be1 Rc8 17. Qa4 f5 18. Qb3+ e6 19. e5 Nf7 {Bruce,R (1960)-Bodziony,P ICCF 2017 0-1 (42) }) 8... Bb7 9. Qe1 Qc7 10. Ne5 Nfd7 11. d4 e6 12. Ndf3 Nxe5 13. fxe5 f6 14. exf6 Rxf6 15. Ng5 Qe7 16. Qh4 Rxf1+ 17. Bxf1 Bf6 18. e4 cxd4 19. cxd4 {Rinaldi, M-Daniele,V ICCF 2010 0-1 (34)}) (7... Qc7 8. d4 Nc6 9. dxc5 Rd8 10. Nbd2 e5 11. Nb3 a6 12. Bd2 Ne4 13. Ng5 Qe7 14. Nxe4 dxe4 15. Qc2 exf4 16. Rxf4 f5 17. Rd1 a5 18. a4 Be6 {Bruce,R (1971)-Maylott,P (1975) ICCF 2017 0-1 (52)}) 8. Qc2 (8. Ne5 Qc7 9. Nxc6 Qxc6 10. Nd2 Bf5 11. Nf3 Rfd8 12. Ne5 (12. Nh4 Be6 13. f5 Bd7 14. fxg6 hxg6 15. Nf3 c4 16. Ne5 Qe6 17. Nxd7 Rxd7 18. dxc4 dxc4 19. Qa4 Rc8 20. Qxa7 Ne4 21. Bf3 Bh6 22. Qa5 Kg7 23. Qb5 Rc5 {Eilmes,D (2359)-Fichaud, A (2336) ICCF 2006 0-1 (43)}) 12... Qc7 13. g4 Be6 14. g5 Ne8 15. Ng4 Nd6 16. Qe1 c4 17. d4 Bf5 18. Bf3 Qc6 19. b3 Rdc8 {Findiur,I (1975)-Kuosmanen,K (2115) ICCF 2012 0-1 (32)}) (8. Na3 a6 9. Ng5 (9. Bd2 Bf5 10. Nc2 Rc8 11. b4 c4 12. dxc4 dxc4 13. Ncd4 Be4 14. a4 Qc7 15. Qe1 Rfd8 16. Rd1 e6 17. a5 Re8 18. Qh4 Ne7 19. Ne5 Bd5 20. Ng4 Nxg4 {Schmidt,T (2136)-Rauf,A ICCF 2017 1-0 (62)}) 9... e5 10. e4 exf4 11. Bxf4 h6 12. Nf3 dxe4 13. dxe4 Qxd1 14. Raxd1 Nxe4 15. Bd3 f5 16. Bc4+ Kh7 17. Nd2 Nxd2 18. Rxd2 Re8 19. Bf7 Re7 {Bito,L-Beran,P ICCF 2007 1/ 2 (43)}) 8... Qc7 (8... Re8 9. e4 e5 10. h3 exf4 11. e5 Nh5 12. d4 f6 13. b3 cxd4 14. cxd4 fxe5 15. dxe5 Qb6+ 16. Kh2 Ng3 17. Re1 Nxe5 18. Bxf4 Nxf3+ { Velez Arana,J-Sosa Patino,C (2432) ICCF 2009 0-1}) (8... Bf5 9. Nh4 Bd7 10. e4 e5 11. Nf3 dxe4 12. Nxe5 Bf5 13. dxe4 Bxe4 14. Bd3 Bxd3 15. Nxd3 Re8 16. f5 c4 17. Nf2 Qd5 18. Na3 gxf5 19. Bf4 Qc5 20. Rad1 {Schulze,P (2045)-Piqueras Jiménez,M (1931) ICCF 2016 1/2 (29)}) 9. e4 dxe4 10. dxe4 Rd8 11. Na3 a6 12. Be3 b5 13. Rad1 Ng4 14. Bxc5 Rxd1 15. Rxd1 Qxf4 16. Qd2 Qxe4 17. Bd3 Qd5 18. b4 Bf5 {Humphreys,S (2072)-Weiss,L (2051) ICCF 2012 0-1 (29)}) (7. c4 Nc6 8. Nc3 d4 9. Na4 b6 10. e4 Ng4 11. Ne1 (11. Rb1 e5 12. fxe5 Ngxe5 13. Nxe5 Nxe5 14. b4 cxb4 15. Rxb4 f5 16. exf5 (16. c5 fxe4 17. Qb3+ Kh8 18. cxb6 axb6 {0-1 (18) Frydendal,O (1913)-Kostanjsek,Z (2194) ICCF 2009}) 16... Bxf5 17. Rb1 Qh4 18. Rf4 Ng4 {Luk,L (1863)-Naach,R (2207) ICCF 2009 0-1}) 11... Ne3 12. Bxe3 dxe3 13. Nc2 Bd4 14. Qe1 e6 15. Nc3 Bb7 16. Rb1 Nb4 17. Nxd4 cxd4 18. Nb5 Nc6 { Roynet,S (2089)-Flecher,J (1955) ICCF 2017 1/2 (37)}) (7. Bd2 Qb6 8. Nc3 Na6 9. a4 Nc7 10. a5 Qe6 11. Qe1 Bd7 12. Ne5 b5 13. e4 d4 14. Nd1 Bc8 15. Qh4 Nd7 16. Nf3 Qf6 17. Qg3 Qd6 18. Nf2 Bb7 {Lilleeng,A (2040)-Sodomski,A (1993) ICCF 2008 1-0 (53)}) 7... d4 (7... Nc6 8. Ne5 (8. e4 d4 (8... dxe4 9. dxe4 Qb6 (9... Nd4 10. e5 Nxe2+ 11. Qxe2 Nd5 12. Ne4 b6 13. Rd1 e6 14. c4 Ba6 15. Nd6 Qc7 16. a4 Ne7 17. Ra3 Nc6 18. Bd2 Rad8 19. Rd3 Nb4 20. Bxb4 cxb4 21. b3 {Eilmes,D (2359) -Horie,T (2115) ICCF 2006 1-0 (40)}) 10. e5 Rd8 11. Qe1 Ng4 12. Na4 Qc7 13. c3 b6 14. Ng5 Nh6 15. b3 f6 16. Bc4+ Kh8 17. Ne6 Bxe6 18. Bxe6 fxe5 19. fxe5 Nxe5 20. Bf4 {Bellette,A (2156)-Hall,G ICCF 2006 0-1 (54)}) 9. Na4 (9. Nb1 Ng4 (9... Qc7 10. Ne1 h6 11. a4 Bd7 12. Nd2 a6 13. g4 Qc8 14. Nc4 Rb8 15. Nb6 Qc7 16. Nxd7 Nxd7 17. Bf3 e5 18. Ng2 exf4 19. Nxf4 Qd6 20. Nd5 Ne7 21. Bf4 {Velker,W (2162)-Kýhos,A (1701) ICCF 2007 1-0 (52)}) 10. Na3 (10. Qe1 a6 11. Qg3 Ne3 12. Bxe3 dxe3 13. Nc3 Nd4 14. Rac1 b5 15. Rfe1 b4 16. Nd1 Qa5 17. Nxe3 Nxf3+ 18. Bxf3 Bxb2 19. e5 Bxc1 20. Bxa8 Bd2 21. Rf1 Be6 {Flude,D (2119)-Mamonovas,V (2073) ICCF 2007 0-1 (41)}) 10... e5 11. h3 Ne3 12. Bxe3 dxe3 13. fxe5 Be6 14. c3 Nxe5 15. Nxe5 Bxe5 16. Qe1 Qg5 17. Kh1 Bg3 18. Qd1 Qh4 19. Bg4 Bxg4 20. Qxg4 Qxg4 {Humphreys,S (2072)-Shabaev,V (2184) ICCF 2012 0-1 (30)}) 9... b6 10. Bd2 (10. c3 Ba6 11. c4 Ng4 12. Rb1 Bb7 13. a3 Qd7 14. Qe1 Ne3 15. Bxe3 dxe3 16. Nc3 Rad8 17. Nd5 Nd4 18. Nxd4 Bxd4 19. Qh4 Bxd5 20. cxd5 f5 21. b3 Qd6 {Eilmes,D (2359)-Dibley,E (2242) ICCF 2006 0-1 (48)}) (10. Qe1 Ba6 11. Bd2 Qd7 12. Rc1 Ng4 13. Qh4 Ne3 14. Bxe3 dxe3 15. Nc3 Nd4 16. Nxd4 cxd4 17. Nd5 Rae8 18. c4 Bb7 19. f5 Be5 20. fxg6 hxg6 21. Bg4 Qd8 {Lilleeng,A (2114)-Kühne,R (2298) ICCF 2009 1/2 (34)}) (10. h3 Qc7 11. g4 Bb7 12. Bd2 Nd8 13. b3 Ne6 14. Nh4 g5 15. Ng2 gxf4 16. Qe1 Qd7 17. Nxf4 c4 18. Nxe6 fxe6 19. g5 Nxe4 {0-1 (19) Nielsen,J (1916)-Rosso,P ICCF 2006}) (10. b3 Ng4 11. Qe1 Qc7 12. Nb2 Nb4 13. Bd1 Ne3 14. Bxe3 dxe3 15. e5 f6 16. Qxe3 Nd5 {0-1 (16) Ginderskov,H (2291)-Ellis,L (2246) ICCF 2009}) (10. c4 dxc3 11. Nxc3 Bb7 12. Kh1 Qd7 13. Be3 Rac8 14. a3 Rfd8 15. Qc2 Nd4 16. Qd1 Nxe2 17. Qxe2 Qxd3 18. Qxd3 Rxd3 19. Rae1 Nxe4 20. Nxe4 Bxe4 21. Ne5 Rd5 {Humphreys,S (2072)-Stuttard,T ICCF 2012 0-1}) 10... Qc7 (10... Ng4 11. Qc1 e5 12. Nxe5 Ngxe5 13. fxe5 Nxe5 14. b3 f5 15. exf5 Qd5 16. Qe1 Bxf5 17. Nb2 b5 18. Qg3 Rae8 19. Rae1 a6 20. h3 Qd8 21. Nd1 c4 22. Bg4 {Nyberg,W (2406) -Höbel,H (2456) ICCF 2010 1/2 (61)}) 11. a3 Nd8 12. c4 Ng4 13. e5 Bb7 14. Nxd4 Nxe5 15. Nb5 Qc6 16. Rf2 a6 17. Nbc3 Nd7 18. Bf3 Qc7 19. Bxb7 Qxb7 {Ott, P-Razumikhin,A (2186) ICCF 2006 1/2 (31)}) (8. d4 cxd4 9. exd4 Bf5 10. a3 Ne4 11. Be3 Nxc3 12. bxc3 Na5 13. Ne5 Qc7 14. Bd2 Rac8 15. Rb1 e6 16. Bd3 f6 17. Ng4 Be4 18. Ne3 f5 19. Qe2 Rf7 {Fagerbekk,E-Hole,Ø ICCF 2006 1/2 (68)}) 8... Qc7 (8... d4 9. Nxc6 bxc6 10. Na4 Qa5 (10... Nd5 11. e4 Ne3 12. Bxe3 dxe3 13. c3 e5 14. Nxc5 (14. f5 Rb8 15. Qc1 Bh6 16. Nxc5 Qh4 17. g3 Qg5 18. b3 gxf5 19. exf5 Bxf5 20. Ne4 Bxe4 21. dxe4 Rbd8 22. Qa3 Rd2 23. Rae1 Qg7 24. Qxa7 f5 25. Bc4+ Kh8 {Bowen,F (1912)-Laine,E (1990) ICCF 2015 1/2 (54)}) 14... exf4 15. d4 Qb6 16. Rb1 Qc7 17. Bc4 Bh6 18. e5 Rb8 19. b4 a5 20. bxa5 Rxb1 21. Qxb1 Qxa5 22. Qb3 {Kaminski,J (1958)-Folk Gilsanz,J ICCF 2009 0-1 (57)}) 11. c4 dxc3 12. Nxc3 Nd5 13. Bd2 Nxc3 14. Bxc3 Bxc3 15. bxc3 Qxc3 16. Rc1 Qa5 17. Qc2 Rb8 18. Qxc5 Qxc5 19. Rxc5 Rb2 20. Bf3 {Bowen,F-Carter,K (1725) ICCF 2014 1-0 (34)}) ( 8... Qd6 9. Nb5 Qb8 10. Nxc6 bxc6 11. Na3 Rd8 12. Qe1 Qb6 13. Rb1 c4 14. dxc4 Ne4 15. Bd3 Bf5 16. Bxe4 Bxe4 17. Bd2 a5 18. Bc3 Bxc3 19. Qxc3 Qb4 20. Rfd1 { Ott,P-Zimmermann,F (2383) ICCF 2006 1/2 (43)}) (8... Bd7 9. Bf3 (9. Nxd7 Qxd7 10. e4 dxe4 11. dxe4 Qd4+ 12. Kh1 Nxe4 13. Nxe4 Qxe4 14. c3 Rad8 15. Qe1 e6 16. Rf3 Ne7 17. Rf1 Qa4 18. Bd1 Qc6 19. Bf3 Qc7 20. Qf2 {Walsh,H (1576)-McLeary,I ICCF 2018 0-1 (40)}) 9... Rc8 10. Qe2 e6 11. Nxc6 Bxc6 12. e4 d4 13. Nd1 b5 14. Nf2 Qb6 15. Kh1 c4 16. Bd2 Rfe8 17. e5 Nd5 18. Ne4 c3 19. bxc3 dxc3 20. Bc1 { Chipkin,L (2200)-Vecek,M (2292) ICCF 2012 0-1 (45)}) (8... Nb4 9. a3 Na6 10. Bf3 Nc7 11. e4 dxe4 12. dxe4 Rb8 13. Be3 Ne6 14. Nd5 Nd7 15. Nxd7 Bxd7 16. c3 b6 17. f5 Nc7 18. Bf4 Nxd5 19. exd5 Bxf5 20. Bxb8 {Bowen,F-Parey,S (1899) ICCF 2014 1-0}) (8... Re8 9. Bf3 (9. Nxc6 bxc6 10. Na4 Qd6 (10... Nd7 11. e4 Qa5 12. c3 Nb6 13. Nxb6 axb6 14. Be3 Rd8 15. Qb3 d4 16. cxd4 Bxd4 17. Bxd4 Rxd4 18. a3 Be6 19. Qc2 c4 {Ott,P (2152)-Packroff,H (2197) ICCF 2015 1/2 (37)}) 11. c3 h5 12. d4 cxd4 13. cxd4 h4 14. Bf3 h3 15. g3 Bf5 16. b3 Qe6 17. Nc5 Qc8 18. Bd2 Bg4 19. Bxg4 Nxg4 20. Rc1 Rb8 {Malnar,A (2330)-Krecak,Z (2367) ICCF 2008 1-0 (53)}) 9... Qd6 10. d4 Be6 11. Nd3 cxd4 12. Nb5 Qd8 13. Nxd4 Qc8 14. Nxe6 Qxe6 15. Qe2 Ne4 16. c3 Na5 17. Nb4 a6 18. Rd1 Red8 19. Bd2 Nc4 20. Be1 {Thurstan, T-Barber,P (2276) ICCF 2014 0-1 (49)}) 9. Nxc6 (9. Nb5 Qb6 10. d4 cxd4 11. exd4 Ne4 12. a4 a6 13. Nxc6 Qxc6 14. Na3 Qxa4 15. Be3 Qb4 16. Nb5 Bf5 17. c3 Qxb2 18. Rb1 Nxc3 19. Rxb2 Nxd1 20. Rxd1 axb5 {Nørholm Jensen,L-Varonen,H (1992) ICCF 2010 0-1 (34)}) (9. Bf3 Nxe5 10. fxe5 Qxe5 11. a4 Rd8 12. Qe2 Be6 13. Bd2 h5 14. h3 Nh7 15. Qf2 Ng5 16. Bd1 Rac8 17. a5 c4 18. d4 Qd6 19. Nb5 Qd7 20. Nc3 Bf6 {Fister,B (2148)-Urban,M (2214) ICCF 2017 0-1 (44)}) 9... Qxc6 (9... bxc6 10. e4 Rb8 (10... e5 11. Qe1 c4 12. fxe5 Qxe5 13. Qh4 cxd3 14. cxd3 dxe4 15. dxe4 Re8 16. Bf3 Qd4+ 17. Kh1 Rb8 18. Rb1 Nd7 19. Be2 Qc5 20. Bd2 Bd4 21. e5 Rxe5 22. Ne4 {Nardone,M-Pekar,J (1918) ICCF 2006 1-0 (28)}) (10... d4 11. Nb1 ( 11. Na4 c4 12. e5 cxd3 13. Qxd3 Nd7 14. Qxd4 Rd8 15. Qf2 Nf8 16. c3 Bf5 17. Be3 Ne6 18. Rad1 Bc2 19. Rxd8+ Rxd8 20. Nc5 Nxc5 21. Bxc5 Rd7 22. e6 fxe6 {Eilmes, D (2359)-Luk,L (1886) ICCF 2006 1-0 (36)}) 11... Nd7 12. Nd2 e5 13. f5 Rb8 14. b3 Ba6 15. Qe1 Qa5 16. Nf3 Qxe1 17. Nxe1 Nf6 18. fxg6 fxg6 19. Bf3 Rf7 20. g3 Bc8 21. Kg2 Ba6 22. h3 {LeSavouroux,H-Maurice,B ICCF 2008 1-0}) 11. e5 Nd7 12. Qe1 e6 13. Qg3 f6 14. Bg4 Re8 15. Qh3 Nf8 16. exf6 Bxf6 17. a3 h5 18. Be2 e5 19. Qg3 h4 20. Qe1 Qe7 21. Qd2 {Nardone,M-Salzmann,S (2266) ICCF 2006 0-1 (56)} ) 10. Bf3 (10. a4 b6 (10... Be6 11. Bf3 Qd7 12. e4 d4 13. Ne2 Rac8 14. h3 Qc7 15. b3 Rcd8 16. Qe1 a5 17. Qh4 b6 18. g4 Bc8 19. f5 e5 20. g5 Ne8 21. f6 Bh8 22. Rf2 {Westin,Å-Vilhelmsson,I (2200) ICCF 2015 1-0 (34)}) 11. Bf3 Ba6 12. Rf2 Rad8 13. Bd2 Qc7 14. e4 dxe4 15. dxe4 Bb7 16. e5 Nd5 17. Nb5 Qb8 18. Qe2 a6 19. Nc3 Nc7 20. f5 Bxf3 21. Rxf3 Nd5 {Maltais,C (2256)-Tripp,G (2225) ICCF 2020 1/ 2 (29)}) 10... Rd8 (10... Be6 11. e4 dxe4 12. dxe4 Qb6 13. Qe2 Rad8 14. Rb1 Rd4 15. Re1 Rd7 16. Be3 Qa5 17. Rbd1 Rfd8 18. Rxd7 Rxd7 19. a3 a6 20. g4 Rd8 21. Kg2 h5 22. gxh5 {Bowen,F-Tranquillo,M (1869) ICCF 2013 1-0 (28)}) (10... e6 11. a4 Bd7 12. e4 Rac8 13. e5 Ne8 14. Nb5 Qb6 15. c4 a6 16. a5 Qd8 17. Nc3 Bc6 18. cxd5 exd5 19. Bg4 Rb8 20. Re1 Qe7 21. Na4 h5 22. Bh3 {Lilleeng,A (2155) -Frydendal,O (1834) ICCF 2011 1-0 (34)}) (10... b5 11. e4 b4 12. exd5 Qd7 13. d6 Bb7 14. dxe7 Rfe8 15. Ne4 Rxe7 16. Nd2 Nd5 17. Nb3 Rae8 18. d4 cxd4 19. Nc5 Qd8 20. Nxb7 Rxb7 21. Bxd5 Qxd5 22. Qd3 {Brandl,A (1952)-Lane,N (2007) ICCF 2015 0-1 (38)}) 11. Qe2 (11. Qe1 Bg4 12. Qg3 Bxf3 13. Qxf3 b5 14. Ne2 a5 15. b3 a4 16. Rb1 b4 17. f5 gxf5 18. Qxf5 Qd7 19. Qf2 Qe6 20. Nf4 Qg4 21. h3 Qc8 22. Nh5 axb3 {Eilmes,D (2321)-Arnold,G (2422) ICCF 2006 1/2 (37)}) 11... Qb6 (11... e6 12. e4 b5 13. e5 Nd7 14. Be3 Bb7 15. a3 a6 16. Qf2 Rf8 17. d4 f6 18. exf6 Bxf6 19. dxc5 Rac8 20. Rad1 Bxc3 21. bxc3 Nxc5 22. c4 bxc4 23. h4 {Fister,B (2291)-Kujawski,R (2394) ICCF 2009 1-0 (36)}) 12. a4 (12. e4 c4+ 13. Kh1 cxd3 ( 13... d4 14. Nb1 cxd3 15. cxd3 Nd7 16. b3 Nc5 17. Ba3 Bd7 18. Nd2 Rac8 19. Rac1 Qa5 20. Nc4 Qa6 21. Bb4 Qb5 22. Ba5 b6 23. Be1 Be6 24. Bh4 Qd7 25. Qd2 { Oaker,W (2187)-Villarreal,B ICCF 2007 1-0 (36)}) 14. cxd3 d4 15. Na4 Qc6 16. b3 b5 17. Nb2 Bb7 {Quirk,M (2017)-Sereni,V (1943) ICCF 2015 0-1 (60)} 18. Bd2 Qd7 19. g4 Rac8 20. Ba5 Rf8 21. g5 Ne8 22. Bg4 {1/2 (22) Nardone,M-Leupold,V (2123) ICCF 2006}) 12... Be6 13. a5 (13. Bd2 Rac8 14. b3 d4 15. Nd1 dxe3 16. Bc3 Nd5 17. Bxg7 Kxg7 18. Bxd5 Bxd5 19. f5 c4 20. bxc4 Bxc4 21. Nxe3 Ba6 22. c4 Rd6 23. Rf3 e6 24. fxg6 hxg6 {Bowen,F-Jacquier,L (1883) ICCF 2014 1-0 (34)}) 13... Qa6 14. Bd2 (14. g4 b5 15. Qg2 b4 16. Nd1 Qc8 17. Nf2 Rb8 18. Re1 Ne8 19. h4 c4 20. d4 Qc6 21. c3 Nd6 22. e4 dxe4 23. Nxe4 Bd5 24. Ng5 Nb5 25. Bxd5 Qxd5 {Nyberg,W (2406)-Janzen,N ICCF 2010 0-1 (78)}) 14... Rac8 15. b3 Qd6 16. g4 Qd7 17. g5 Ng4 18. Ra4 d4 19. Nd5 {Bowen,F-Nutt,J ICCF 2013 0-1}) (7... b6 8. Ne5 Bb7 9. a4 Nc6 10. Bf3 {1-0 (10) Fracassa,M-Nogueira,D ICCF 2015} Rc8 11. Nxc6 Bxc6 12. e4 dxe4 13. dxe4 Qxd1 14. Rxd1 Ne8 15. Nb5 a6 16. Na7 Rc7 17. Nxc6 Rxc6 18. e5 Rc7 19. Ra3 Bh8 20. Rb3 Ng7 21. Rxb6 Nf5 22. c3 {Bruce,R (1960)-Fox,J (1639) ICCF 2017 1-0 (29)}) (7... a6 8. e4 d4 9. Nb1 Nc6 10. Na3 b5 11. Nb1 Ng4 12. h3 Ne3 13. Bxe3 dxe3 14. c3 e5 15. Na3 exf4 16. Nc2 Re8 17. d4 cxd4 18. Nfxd4 Nxd4 19. Nxd4 {Humphreys,S (2185)-Barnett,F (2057) ICCF 2009 0-1 (41)}) (7... e6 8. e4 Nc6 9. Qe1 b6 (9... d4 10. Nd1 b6 11. Bd2 Bb7 12. a3 Ne8 13. Qg3 f5 14. Nf2 Qd7 15. e5 Rb8 16. h4 Nc7 17. Rfb1 Kh8 18. Qh2 Rg8 19. Nh3 {Egan,M (2175) -Turóczi,P (2162) ICCF 2019 1/2 (33)}) 10. Qh4 dxe4 11. dxe4 Nd4 12. Bd1 Bb7 13. Qe1 Ng4 14. h3 Nh6 15. Nb1 f5 16. e5 Bxf3 17. gxf3 Nc6 18. c3 a6 19. Be2 { Velker,W (2162)-Huybrecht,F (1955) ICCF 2007 1/2 (30)}) (7... h6 8. Ne5 Nbd7 9. d4 e6 10. Bd2 a6 11. a4 b6 12. Be1 Bb7 13. Bh4 Qc7 14. Qd3 Rfc8 15. Rac1 Ne8 16. Bg4 Ndf6 17. Bxe6 fxe6 18. Qxg6 Qe7 19. f5 {Walker,J-De la Calle,I (1940) ICCF 2006 1-0 (37)}) 8. Ne4 (8. exd4 cxd4 9. Ne4 Nd5 10. Qe1 Nc6 11. a3 Re8 12. Nfg5 h6 13. Nf3 f5 14. Ng3 Kh7 15. Qf2 Qc7 16. Nh4 Ne3 17. Bxe3 dxe3 18. Qf3 Nd4 19. Qd5 Be6 {Walsh,H-Rózanski,R (1780) ICCF 2012 0-1}) 8... Qb6 (8... Nc6 9. Nxc5 dxe3 10. d4 Qd6 11. c3 Qxf4 12. Ne5 Qg5 13. Nxc6 bxc6 14. Qe1 a5 15. Rf3 Qd5 16. Bxe3 e5 17. h3 Nd7 18. Nxd7 Bxd7 19. dxe5 Be6 20. Qf2 {Thau,O (1771)-Knigge,M (1702) ICCF 2019 1/2}) (8... dxe3 9. Bxe3 Nd5 10. Qd2 Nxe3 11. Qxe3 Bxb2 12. Rab1 Bd4 13. Nxd4 cxd4 14. Qg3 Qc7 15. Qh4 f6 16. Bf3 Nc6 17. Rfe1 Rf7 18. Nd2 e6 19. Nb3 Qd6 20. Nd2 {Lilleeng,A (2134)-Petrelli,C (2051) ICCF 2010 1/2 (44)}) (8... Nxe4 9. dxe4 Qb6 10. exd4 cxd4 11. Bd3 Nc6 12. a3 Bd7 13. Qe1 Rac8 14. Qh4 Rfe8 15. b4 a6 16. Bd2 h6 17. Rfb1 Na7 18. a4 Rxc2 19. Qf2 Rcc8 20. b5 {Ackley,P (1931)-Ticleanu,S (1917) ICCF 2013 1-0 (39)}) 9. Nxf6+ (9. Nfd2 Qc7 10. Bf3 Nd5 11. Nc4 Rd8 12. exd4 cxd4 13. Ng3 b5 14. Ne5 Nc6 15. Nxc6 Qxc6 16. Bd2 a5 17. a3 Bb7 18. f5 e6 19. fxg6 hxg6 20. Ne4 Qc7 { Krüger,J (2170)-Lopes,M (2090) ICCF 2012 0-1 (32)}) 9... exf6 10. e4 (10. exd4 cxd4 11. Rf2 (11. Nd2 Nc6 12. Nc4 Qc7 13. a4 Re8 (13... Be6 14. Bf3 Rad8 15. b3 Rfe8 16. Re1 Bf8 17. Bd2 b6 18. Be4 Nb4 19. g4 a6 20. f5 Bd5 21. Bxd5 Rxe1+ 22. Qxe1 Nxd5 23. Qe4 g5 24. h4 Nc3 25. Qf3 {Westin,Å-Strömberg,H (2316) ICCF 2015 0-1 (43)}) 14. b3 (14. Bd2 Be6 15. Bf3 Rad8 16. a5 Bf8 17. g3 Nb4 18. b3 b5 19. axb6 axb6 20. Ra4 Nd5 21. Ra1 Qc5 {Nyberg,W (2406)-Baranowski,T (2491) ICCF 2010 0-1 (43)}) 14... Bf8 15. Bf3 Be6 16. Bd2 Rad8 17. Be1 f5 18. Qc1 Nb4 19. Bh4 Rc8 20. Bf2 Bc5 21. Be1 b6 22. Bd2 Nd5 {Ackley,P (2030)-James,A ICCF 2015 0-1 (31)}) (11. b3 Re8 12. Nd2 Nc6 13. Bf3 Be6 14. a4 Qc7 15. g3 Rad8 16. Ba3 Bf8 17. Bxf8 Kxf8 18. Re1 Nb4 19. Nc4 Bxc4 20. Rxe8+ Rxe8 21. bxc4 Re3 22. Rb1 Na2 {Louro,E (1866)-King,T ICCF 2019 0-1 (33)}) 11... f5 12. Qd2 Nc6 13. c4 dxc3 14. bxc3 Rd8 15. d4 Be6 16. Ba3 Rac8 17. Re1 Qc7 18. Bf1 Bd5 19. Bc5 Be4 20. Bb5 Qa5 21. a4 a6 {Kaminski,J (1866)-Lund,S (1340) ICCF 2019 1-0 (27)}) ( 10. c4 dxe3 11. Bxe3 Re8 12. Qd2 f5 13. Rab1 Qd6 14. a3 a5 15. Bd1 Nc6 16. Ba4 Bd7 17. Rfe1 b6 18. Kf1 Rad8 19. b3 Re7 20. Bf2 Rxe1+ 21. Rxe1 Bh6 {Fister,B (2347)-Bachmann,W (2420) ICCF 2012 1/2 (38)}) 10... f5 (10... Nc6 11. Qe1 (11. f5 gxf5 12. Nd2 fxe4 13. Nxe4 Ne5 14. Ng3 Re8 15. Nh5 Bd7 16. Qe1 Kh8 17. Nxg7 Kxg7 18. Qh4 Re6 19. Bf4 Rg8 20. Rf2 Ng6 21. Qh6+ Kh8 22. Raf1 f5 {Oaker,W (2221)-Fraser,F (2345) ICCF 2007 1/2 (29)}) 11... f5 12. Nd2 Re8 13. Nc4 Qc7 14. e5 f6 15. exf6 Bxf6 16. Qf2 b5 17. Na3 a6 18. Bf3 Be6 19. b3 Rac8 20. Re1 Nb4 21. Bd2 Bf7 22. Rxe8+ {Milnes,A (2262)-Herriot,B (2191) ICCF 2013 0-1 (28)} ) 11. e5 (11. Nd2 Nc6 12. Nc4 (12. Bf3 Qc7 13. exf5 Bxf5 14. Be4 Bxe4 (14... Ne7 15. Qf3 Be6 16. g4 {Lythgoe,M (2001)-Ellis,A ICCF 2016 0-1 (47)}) 15. Nxe4 Ne7 16. Bd2 Qc6 17. Qf3 f5 18. Ng5 Nd5 19. Rfe1 Rae8 20. Qf2 Ne3 21. c4 b5 22. b3 bxc4 23. bxc4 h6 {Milnes,A (2268)-Eldridge,M (2350) ICCF 2011 0-1 (37)}) 12... Qc7 13. e5 f6 14. Bf3 Be6 15. exf6 Bxf6 16. Re1 Rae8 17. Rxe6 Rxe6 18. Bd5 Rfe8 19. Bxe6+ Rxe6 20. a4 Na5 21. Nxa5 Qxa5 22. Bd2 Qd8 {Bowen,F-Huff,D (1778) ICCF 2013 1/2 (36)}) (11. Ne5 Qc7 12. Bf3 Nd7 13. Nxd7 Bxd7 14. Bd2 Rfe8 15. exf5 Bxf5 16. g4 Bd7 17. b3 Rad8 18. Bg2 f5 19. Bd5+ Kh8 20. g5 Bc6 21. Bxc6 Qxc6 22. Kf2 h5 {Maltais,C (2256)-Price,B (2112) ICCF 2020 1/2 (28)}) 11... Nc6 12. c4 f6 (12... Re8 13. Re1 Bd7 14. Bd2 a5 15. b3 Nd8 16. Qc2 Bc6 17. a3 Ne6 18. Qb2 Reb8 19. Qc2 {Spagnoli,E (2185)-Nett,P (2199) ICCF 2015 1-0 (116)}) 13. exf6 Bxf6 14. Re1 Bd7 15. Bd2 a5 (15... Rfe8 16. Qc2 Qc7 17. a3 a5 18. Bf1 Rxe1 19. Rxe1 Re8 20. Rxe8+ {1/2 (20) Flude,D (2119)-Yasakov,I (2324) ICCF 2007}) 16. Qc2 Rfe8 17. a3 a4 18. Bf1 Na5 19. Ne5 Bxe5 20. Rxe5 Rxe5 21. fxe5 Nb3 22. Re1 Nxd2 23. Qxd2 Qa5 24. Qc1 Re8 25. g3 b5 26. Bg2 Kg7 27. Bd5 bxc4 28. Bxc4 Be6 29. Kf1 Bxc4 30. Qxc4 f4 31. gxf4 Qd2 32. f5 Qf4+ 33. Kg1 Qg4+ 34. Kh1 Qxf5 35. Qxc5 Qxd3 36. e6 Qf3+ 37. Kg1 Qg4+ 38. Kh1 Rxe6 39. Qa7+ Kh6 40. Rxe6 Qxe6 41. Qxd4 Qc6+ 42. Kg1 Kh5 43. h3 Qf3 {1/2 (43) Price,B (2124) -Lednev,V (2449) ICCF 2011 Bird's Opening with-1...d5}) (6... Nbd7 7. Qe1 b6 ( 7... e6 8. Qh4 h6 9. Nc3 b6 10. e4 Bb7 11. e5 Nh7 12. Qxd8 Rfxd8 13. Nb5 Bf8 14. c4 dxc4 15. dxc4 a6 16. Nc3 Nc5 17. b4 Nd3 18. Ba3 Nxf4 19. Rad1 {Ward,B (1687)-Daykin,S ICCF 2016 0-1}) 8. Nc3 c5 9. e4 d4 10. Nd1 Bb7 11. Qh4 e6 12. Nf2 a5 13. g4 Ne8 14. g5 a4 15. Bd2 Nd6 16. Ng4 a3 17. b3 Rc8 18. Nfe5 { Jan,P (2195)-Fraser,F (2191) ICCF 2009 1-0 (35)}) (6... Bg4 7. Nc3 Bxf3 8. Bxf3 c6 9. e4 dxe4 10. dxe4 Qb6+ 11. Kh1 Rd8 12. Qe1 Na6 13. a3 e6 14. b4 Qd4 15. Be3 Qd7 16. Rd1 Qe7 17. Rxd8+ Qxd8 18. Qf2 {Roynet,S (2062)-MacMillen,A (1711) ICCF 2017 1-0 (40)}) (6... e6 7. Qe1 Nc6 8. Qh4 Qd6 9. Nc3 Nd7 10. Bd2 Bf6 11. Ng5 Bxg5 12. fxg5 Qe7 13. Nb5 Nb6 14. c4 dxc4 15. Nc3 cxd3 16. Ne4 dxe2 17. Nf6+ {1-0 (17) Hall,G-Crapper,F (1907) ICCF 2006}) 7. c4 (7. a4 a6 8. Na3 e6 9. Rb1 Nc6 10. b4 Bb7 11. Bd2 a5 12. b5 Ne7 13. c4 Qd6 14. Qc1 Nf5 15. cxd5 exd5 16. Nc2 c5 17. bxc6 Bxc6 18. Rxb6 {Schmidt,T (2136)-Campbell,E (2164) ICCF 2017 1/2 (71)}) (7. Qe1 c5 (7... Bb7 8. c3 Qd6 9. Ne5 Nbd7 10. Qg3 Ba6 11. Qh3 Rad8 12. Nd2 h6 13. Ndf3 c5 14. a4 Bc8 15. Qh4 Qc7 16. Bd2 Nxe5 17. Nxe5 c4 18. d4 Ne4 19. Rad1 {Nielsen,J (1913)-Gambardella,G (2139) ICCF 2006 1/2 (32)}) 8. Nbd2 (8. Nc3 Bb7 9. Nd1 Nc6 10. a3 Qd6 11. Qh4 Rfd8 12. Nf2 Rac8 13. Ng5 h6 14. Ngh3 c4 15. Ng4 Nxg4 16. Bxg4 f5 17. Be2 cxd3 18. Bxd3 e5 19. Rb1 e4 {Walsh,H (1714)-Pardoe,I (1638) ICCF 2016 0-1 (31)}) 8... Nc6 9. a3 Ng4 10. Nb3 a5 { 0-1 (10) Armans,E-Matcins,A ICCF 2005}) (7. Nc3 Bb7 8. Nb5 a6 9. Nbd4 c5 10. Nb3 Nbd7 11. Ne5 Nxe5 12. fxe5 Nd7 13. d4 c4 14. Nd2 f6 15. exf6 Bxf6 16. c3 Qc7 17. Nf3 Rf7 18. Qc2 Raf8 {Walsh,H (1557)-Knox,A (1438) ICCF 2019 1-0 (27)}) 7... dxc4 8. d4 c5 9. dxc5 Qc7 10. cxb6 axb6 11. Nc3 Nbd7 12. Nd4 Ba6 13. a4 Qc5 14. Bf3 Rac8 15. Ndb5 e6 {Lilleeng,A (2134)-Pietrobono,A (2310) ICCF 2010 1/2 (82)}) (4. g3 Bg7 5. Bg2 b6 (5... O-O 6. O-O Qd6 (6... b6 7. e4 (7. c3 Bb7 8. Na3 (8. a4 c5 9. Na3 (9. Qc2 Nbd7 10. Na3 Rc8 11. Bd2 a6 12. Kh1 Re8 13. Rae1 e5 14. Nxe5 Nxe5 15. fxe5 Ng4 16. Nc4 Nxe5 17. Nxe5 Rxe5 18. Bf4 Re6 19. Kg1 Qe7 20. Bh3 f5 {Weisenburger,H-Nesis,G ICCF 1983 1/2 (60)}) 9... Nc6 10. Qc2 Qd7 11. e4 dxe4 12. dxe4 Na5 13. Re1 Rad8 14. e5 Ng4 15. h3 Nh6 16. g4 Bd5 17. Be3 Qc6 18. Qe2 f5 19. g5 Nf7 {Sedlácek,T (2229)-Deforel,J (2059) ICCF 2017 1/2 (46)}) (8. Nbd2 Nbd7 9. e4 dxe4 10. Ng5 Rb8 11. Ngxe4 Nc5 12. Nxc5 Bxg2 13. Kxg2 bxc5 14. Qf3 e6 15. Nc4 Qd5 16. Ne5 Qd6 17. b3 Nd5 18. Bb2 Rfd8 19. Rf2 a5 {Hanegby,A (2074)-Adler,E (2076) ICCF 2014 0-1 (67)}) (8. e3 Nbd7 9. Nbd2 c5 10. Re1 b5 11. a4 a6 12. e4 dxe4 13. dxe4 Qb6 14. e5 Nd5 15. a5 Qa7 16. Kh1 Rfd8 17. Ne4 Nf8 18. Qc2 Rac8 19. Bh3 Rc7 {Brotherton,T (2211)-Greig,S (2210) ICCF 2020 1/2 (45)}) (8. Qe1 Nbd7 9. a4 Re8 10. Ne5 c5 11. a5 Nxe5 12. fxe5 Nd7 13. a6 Bc6 14. d4 f6 15. c4 e6 16. exf6 Nxf6 17. Bg5 Rf8 18. dxc5 bxc5 19. Nc3 Qd7 {Buker,M (2109)-Deforel,J (2207) ICCF 2019 1/2 (43)}) (8. Qc2 Nbd7 9. Nbd2 Ng4 10. Nb3 c5 11. h3 Ngf6 12. Be3 e6 13. a4 Nh5 14. Bf2 e5 15. e3 c4 16. dxc4 dxc4 17. Nbd2 exf4 18. exf4 Re8 19. Nxc4 Qc7 {Recasens Sánchez,J (2029)-Evans,W ICCF 2007 1-0}) 8... Nbd7 (8... c5 9. Qc2 d4 10. e4 dxe3 11. Bxe3 Ng4 12. Bd2 Qd7 13. Rad1 Nc6 14. h3 Nf6 15. Be3 Nd5 16. Bf2 Rfd8 17. d4 cxd4 18. Nxd4 Nxd4 19. Bxd4 Qc7 20. Qf2 {Brotherton,T (2211)-Nemec,Z (2190) ICCF 2020 1/2 (27)}) 9. Bd2 c5 10. e3 Rc8 11. Qe2 Re8 12. c4 a6 13. Bc3 e6 14. b3 Qe7 15. Rac1 Ng4 16. Bxg7 Kxg7 17. e4 dxe4 18. dxe4 e5 {Snijders,J (2075) -Padilla López,D (2089) ICCF 2016 1/2 (30)}) (7. Qe1 Bb7 8. a4 (8. h3 Nbd7 9. Nc3 e6 10. e4 dxe4 11. dxe4 Qe7 12. e5 Nd5 13. Be3 Rad8 14. Nxd5 Bxd5 15. Qe2 Nc5 16. Kh2 Ne4 17. c4 Ba8 18. Rad1 c5 19. Rxd8 Rxd8 {Jensen,K (2147)-Norman,N (2155) ICCF 2014 1/2 (29)}) (8. Nbd2 Nc6 9. c3 Ng4 10. Nb3 a5 11. a4 e6 12. h3 Nh6 13. e4 Ba6 14. f5 Bxd3 15. f6 Bxf6 16. Bxh6 Bxf1 17. Bxf1 Bg7 18. Bxg7 Kxg7 19. e5 Qe7 {Schmidt,T (2136)-Alzola,E (2109) ICCF 2017 1-0 (48)}) 8... c5 9. Na3 Nbd7 10. e4 dxe4 11. Ng5 c4 12. Nxe4 Nxe4 13. dxe4 Nc5 14. e5 Bxg2 15. Kxg2 Qd5+ 16. Kg1 f6 17. exf6 exf6 18. Qe2 f5 {Dorn,M (2151)-Bragesjö,T (2153) ICCF 2020 1/2}) (7. a4 c5 8. a5 Bb7 9. Ne5 Qc8 10. Nd2 Na6 11. c3 b5 12. Ndf3 Ne8 13. Ng5 Nd6 14. e4 dxe4 15. Nxe4 c4 {1/2 (15) Thau,O (1718)-Guineret,H ICCF 2020}) (7. Nc3 Bb7 8. e4 dxe4 9. Ng5 Qd4+ 10. Kh1 c5 (10... Na6 11. Ngxe4 Nxe4 12. Nxe4 Rad8 13. Qe2 Qd7 14. f5 gxf5 15. Nf6+ Bxf6 16. Bxb7 Nc5 17. Bg2 Ne6 18. Rb1 c5 19. Bh6 Bg7 20. Be3 Nd4 21. Qf2 e6 22. Bg5 {Jensen,K (2153)-Nett,P (2199) ICCF 2015 1/2 (61)}) 11. Ngxe4 Nxe4 12. dxe4 Nc6 13. e5 Rfd8 14. Qe2 Qd7 15. Be3 Nd4 16. Bxd4 cxd4 17. Rad1 Rac8 18. Rd2 f6 {Heß,H (2358)-Wieringen,C (2301) ICCF 2005 1/2 (26)}) (7. Ne5 Bb7 8. c4 e6 9. e3 Nfd7 10. d4 Nxe5 11. fxe5 f5 12. Nc3 Na6 13. cxd5 Bxd5 14. Nxd5 exd5 15. Qa4 Nb8 16. g4 c6 17. gxf5 Rxf5 18. Rxf5 gxf5 {Sitorus,Y-Vera,A ICCF 2015 1-0}) (7. e3 Bb7 8. Ne5 Qc8 9. b3 c5 10. Na3 Nc6 11. Bb2 Nxe5 12. Bxe5 Qd7 13. Qe2 Rad8 14. Rad1 h5 15. c4 h4 16. gxh4 Qg4 17. Qxg4 Nxg4 18. Bxg7 Kxg7 {Renard,S (2317)-Látal,F (2182) ICCF 2020 1/2 (40)}) 7... dxe4 (7... c5 8. e5 Ne8 9. d4 Nc7 10. Be3 c4 11. b3 b5 12. Nh4 e6 13. Nd2 Bd7 14. c3 Nc6 15. Re1 Rb8 16. Qc1 Qe7 17. Nhf3 Rfc8 18. Bf2 Qd8 19. a4 {Dreisch,J (2031)-Ott,P (2084) ICCF 2017 1/2 (28)}) (7... e6 8. Nc3 Bb7 9. e5 Nfd7 10. g4 a6 11. Ne2 c5 12. Ng3 Nc6 13. g5 Ne7 14. d4 Qc7 15. c3 { 1/2 (15) Weisenburger,H-Zaitsev,V ICCF 1983}) 8. dxe4 Nxe4 (8... Ba6 9. Re1 Nc6 (9... Qxd1 10. Rxd1 Nc6 11. e5 Rad8 (11... Ng4 12. Nc3 Rad8 13. Rd2 Rxd2 14. Bxd2 Rd8 15. Ne4 Nh6 16. Bc3 Bf8 17. h3 Nf5 18. Kf2 Bc8 19. a3 Ncd4 20. Rd1 c5 21. Nxd4 cxd4 22. g4 Rd7 23. Bd2 {Arnold,G (2267)-Taffijn,M (1887) ICCF 2018 1-0 (37)}) 12. Rxd8 Rxd8 13. Nc3 Ne8 14. Be3 f6 15. Ng5 Nd4 16. exf6 Bxf6 17. Bd5+ e6 18. Bb3 Bc8 19. Bxd4 Bxd4+ 20. Kf1 Ba6+ 21. Ke1 {Arnold,G (2301) -Pommrich,R (2250) ICCF 2020 1/2 (34)}) 10. e5 Ng4 11. Nc3 Qxd1 12. Nxd1 Rad8 13. c3 f6 14. h3 Nh6 15. e6 Rd6 16. b4 Rfd8 17. Ba3 b5 {0-1 (17) Bachler, R-Pfaffel,T (2217) ICCF 2007}) 9. Ng5 Nxg5 (9... Bd4+ 10. Kh1 Nf2+ 11. Rxf2 Bxf2 12. Qf1 c6 13. Qxf2 Qd1+ 14. Qg1 Qxg1+ 15. Kxg1 f6 16. Nf3 Rd8 17. Be3 Bb7 18. Nc3 c5 19. Kf2 Na6 20. a3 Nc7 21. g4 {Arnold,G (2221)-Burmeister,F ICCF 2016 1-0 (47)}) 10. Bxa8 Ne6 (10... Qxd1 11. Rxd1 Bg4 12. Rf1 Ne6 13. Be4 Nd7 14. Bf3 Bh3 15. Bg2 Bf5 16. c3 Ndc5 17. Nd2 Rd8 18. Nf3 Bf6 19. h3 a5 20. Ne5 Bxe5 21. fxe5 h5 22. Re1 {Arnold,G (2174)-Scharf,N (2155) ICCF 2015 1-0 (60)}) 11. Be4 Ba6 (11... Nd7 12. Nc3 Bd4+ 13. Kh1 Ba6 14. Bd3 Bb7+ 15. Be4 Ba6 16. Bd3 Bb7+ {1/2 (16) Arnold,G (2263)-Hughes,G (2112) ICCF 2017}) 12. Re1 Qc8 13. Nc3 Rd8 14. Qf3 Nc5 15. Ba8 Nbd7 16. Bc6 Nb8 17. Ba8 Nbd7 (17... e6 18. Be3 Nb7 19. Nb5 Nd7 20. Rad1 Bxb2 21. c3 Ba3 22. Nxa3 Qxa8 23. Bd4 Nbc5 24. Qxa8 Rxa8 25. Re3 Bb7 26. c4 h5 27. Bb2 Re8 28. Nc2 Bc6 29. Nd4 {Arnold,G (2292)-Deforel, J (2209) ICCF 2019 1/2 (30)}) 18. Bc6 {Arnold,G (2263)-Zawadski,A (2214) ICCF 2017 1/2}) (6... d4 7. c3 (7. Nbd2 Nc6 (7... c5 8. Nc4 Nd5 9. e4 dxe3 10. c3 b6 11. Nxe3 Bb7 12. Re1 e6 13. Ne5 Nc6 14. Nxd5 Nxe5 15. Nf6+ Bxf6 16. fxe5 Bxg2 17. Kxg2 Bg7 18. Qf3 h6 19. Qe4 {Oren,I (2314)-Vestergård,S (2294) ICCF 2008 1/ 2}) 8. a4 Bg4 9. Nc4 Qc8 10. Nfe5 Nxe5 11. Nxe5 Bh3 12. e3 dxe3 13. Bxe3 Bxg2 14. Kxg2 Nd5 15. Bd2 f6 16. Nc4 c5 17. Qf3 Qd7 18. Rae1 Rae8 {Ainsborough,G (1596)-Linden,W (1663) ICCF 2020 1-0 (49)}) 7... c5 8. Bd2 (8. e4 dxe3 9. Bxe3 Qc7 10. Qe2 Rd8 11. Na3 a6 12. Nc4 Bf5 13. Rad1 Nbd7 14. Bf2 b5 15. Ne3 Be6 16. Ng5 Bxa2 17. Ra1 Bb3 18. Ra3 c4 19. dxc4 Bxc4 {Vajas,S (1935)-Jacques,G (1621) ICCF 2019 1-0 (28)}) 8... Nc6 9. Na3 Be6 10. Qc2 Rc8 11. Ng5 Qd7 12. e4 dxc3 13. bxc3 Bg4 14. e5 Ne8 15. Rf2 Bf5 16. Rd1 Bxd3 17. Be3 Bxc2 18. Rxd7 { Kaminski,J (1866)-Shtrikman,R (1699) ICCF 2019 1-0 (36)}) (6... Re8 7. Nc3 d4 8. Nb5 Nc6 9. c3 Ng4 10. Kh1 e5 11. fxe5 dxc3 12. Nxc3 Ncxe5 13. Bg5 f6 14. Bf4 Nxf3 15. Bxf3 Kh8 16. Qc2 c6 17. Ne4 Qe7 18. Rad1 {Brissman,A (2205)-Delgado,N (2089) ICCF 2020}) (6... e6 7. c3 Nc6 8. Qc2 Qd6 9. e4 dxe4 10. dxe4 e5 11. f5 Qc5+ 12. Kh1 gxf5 13. exf5 e4 14. Ng5 Bxf5 15. Nd2 Nb4 16. Qa4 Nd3 17. Ndxe4 Nxe4 18. Nxe4 {Thurstan,T (1806)-Scott,I ICCF 2019 1/2 (29)}) 7. Nc3 (7. Kh1 Rd8 8. Qe1 Qa6 9. e3 c5 10. Nbd2 Nc6 11. a3 Nb4 12. axb4 Qxa1 13. bxc5 Qa5 14. Nb3 Qxe1 15. Rxe1 a5 16. Bd2 a4 17. Nbd4 e6 18. c6 bxc6 {Borwell,A (2220) -Lockwood,A (2190) ICCF 2010 0-1 (47)}) 7... Nc6 8. e4 (8. e3 a6 9. h3 Re8 10. e4 e5 11. fxe5 Nxe5 12. Nxe5 Qxe5 13. Bf4 Qd4+ 14. Kh2 dxe4 15. dxe4 Qc5 16. Qf3 Be6 17. e5 Nd7 18. Qxb7 {Schulz,B (1756)-Zuna,A (1731) ICCF 2013 1-0 (34)}) 8... dxe4 9. dxe4 (9. Nxe4 Nxe4 10. dxe4 Qc5+ 11. Rf2 e5 12. c3 Bg4 13. f5 gxf5 14. h3 Rad8 15. Qe2 Bxf3 16. Bxf3 fxe4 17. Bxe4 f5 18. Bc2 e4 19. Be3 Qe5 { 1/2 (19) Andreassen,E (2157)-Hagen,T (2285) ICCF 2010}) 9... Qc5+ 10. Kh1 Ng4 ( 10... Rd8 11. Qe1 a5 (11... Qh5 12. e5 Ng4 13. h3 Nh6 14. Kh2 Nb4 15. Qe2 Rb8 16. a3 Nc6 17. Ne4 Bg4 18. Be3 Nf5 19. c3 Nxe3 20. Qxe3 f6 21. Qc5 Bxf3 22. Bxf3 Qf5 23. Qc4+ {Perry,D (2456)-Salcedo Mederos,P (2453) ICCF 2008 1-0 (38)}) 12. Be3 Qh5 13. e5 Ng4 14. Bg1 a4 15. Rd1 Rxd1 16. Nxd1 Be6 17. Qe2 Bxa2 18. Nc3 Be6 19. Qb5 Bc8 20. Nxa4 Qf5 21. Nc5 Qxc2 22. Ne1 {Arnold,G (2254)-Rimkus, B (2136) ICCF 2016 1-0 (58)}) 11. Nd5 (11. Qe1 Nb4 12. Qd2 Be6 13. a3 Bxc3 ( 13... Nc6 14. h3 Rfd8 15. Qe1 Bxc3 16. bxc3 Nf6 17. Be3 Qa5 18. Nd4 {Bakulin,Y (2264)-Matveev,V (2180) ICCF 2015 1-0 (50)}) 14. axb4 Bxd2 15. bxc5 Be3 16. h3 Nf2+ 17. Kh2 Bxc5 18. Nd2 Rad8 19. f5 Bd7 {Arnold,G (2254)-McDermott,F (2147) ICCF 2016 1/2 (57)}) 11... e6 12. Nxc7 Rb8 13. Qe2 a6 14. c3 Qa5 15. Ng5 h6 16. Ngxe6 fxe6 17. Qxg4 {Dreisch,J (2094)-Cuccumini,V (2190) ICCF 2016 1/2 (30)}) 6. O-O Bb7 7. e3 (7. Ne5 Nbd7 8. a4 O-O 9. a5 a6 10. Nxd7 Qxd7 11. Nd2 Rab8 12. axb6 cxb6 13. Nf3 d4 14. Ne5 Qc7 15. Bxb7 Qxb7 16. e4 dxe3 17. Bxe3 e6 18. Qe2 a5 {Morrell,T (2341)-Cvak,R (2451) ICCF 2019 1/2 (30)}) (7. Qe1 c5 8. Na3 O-O 9. c3 Nbd7 10. Bd2 Re8 11. Rd1 e5 12. fxe5 Nxe5 13. Nxe5 Rxe5 14. Bf4 Re6 15. Qd2 Qe7 16. Rde1 Nh5 17. Bg5 f6 {Veen,K (2113)-Ferre Pérez,A (2056) ICCF 2006 1/2 (30)}) 7... O-O 8. b3 c5 9. Ne5 Qc8 10. Bb2 Nc6 11. Nd2 Nxe5 12. Bxe5 Ne8 13. Qe2 Qd7 14. Bxg7 Nxg7 15. g4 f6 {Söderberg,K (2254)-Sundqvist,C (2172) ICCF 2020 1/2 (28)}) (4. Nc3 Bg7 5. h3 c5 6. e3 d4 7. exd4 cxd4 8. Nb5 Qa5+ 9. Nc3 dxc3 10. bxc3 Ne4 11. Bb2 Bxc3+ 12. Bxc3 Qxc3+ 13. Nd2 Nxd2 14. Qxd2 Qxa1+ {0-1 (14) Gonet Boisson,G-Chazalette,J (2128) ICCF 2008}) (4. Nbd2 Ng4 5. Nb3 Bg7 6. e3 b6 7. Be2 a5 8. Nbd4 e5 9. Nxe5 Nxe5 10. fxe5 Bxe5 11. O-O O-O 12. Nf3 Bg7 13. d4 Nd7 14. Bb5 Bb7 15. Qe2 a4 {Bito,L (2138)-Kratochvíl,J (2269) ICCF 2017 0-1 (68)}) (4. c4 dxc4 5. e4 cxd3 6. Bxd3 Nc6 7. Nc3 a6 8. O-O e6 9. Qe2 Ng4 10. Kh1 Bc5 11. e5 h5 12. Ne4 Nd4 13. Qe1 Be7 14. Bd2 Nf5 15. Bc2 Bd7 { Hoynck van Papendrecht,F (2134)-Wedel,L (2147) ICCF 2015 1/2 (73)}) 4... Bg7 ( 4... Nc6 5. h3 (5. Nbd2 Bg7 6. d4 O-O 7. e3 Bf5 8. Be2 a5 9. O-O a4 10. h3 Qd6 11. Bb5 a3 12. bxa3 Na5 13. a4 c6 14. Be2 b6 15. Ne5 Ne4 16. Nxe4 Bxe4 { Oaker,W (2246)-Sciarretta,R (1833) ICCF 2008 0-1 (36)}) 5... Nh5 6. g4 Ng3 7. Rg1 Nxf1 8. Kxf1 Bg7 9. Be3 O-O 10. f5 gxf5 11. gxf5 Kh8 12. Qd2 Bxf5 13. Rxg7 Kxg7 14. Bh6+ Kh8 15. Bxf8 Bxh3+ 16. Kf2 {Mayes,F (1546)-Mohammed,H (1784) ICCF 2014 0-1 (35)}) 5. Qc2 (5. g3 O-O (5... Nbd7 6. Nbd2 O-O 7. Bg2 c6 8. O-O Ng4 9. Nb3 Qb6+ 10. d4 a5 11. a4 Rd8 12. Re1 Ngf6 13. Nbd2 Ne4 14. Nxe4 dxe4 15. Nd2 c5 16. e3 f5 {Kaminski,J (1866)-Lund,S (1340) ICCF 2019 0-1 (46)}) 6. Bg2 c6 (6... c5 7. Nbd2 Nc6 8. O-O a5 9. Nb3 Qb6 10. Be3 d4 11. cxd4 cxd4 12. Bf2 Ng4 13. Qc2 a4 14. Qc5 Ra6 15. Qxb6 Rxb6 16. Nbxd4 Nxf2 {Domenche Redondo, F (1926)-Juárez de Vena,A (1947) ICCF 2015 0-1 (38)}) 7. O-O Be6 (7... Nbd7 8. Qc2 Qb6+ 9. e3 Re8 10. d4 Ne4 11. Nbd2 Ndf6 12. Nxe4 Nxe4 13. Ne5 Nd6 14. b3 Bf5 15. Qe2 f6 16. Nf3 a5 17. Ba3 Ne4 18. Qb2 e5 19. Rfe1 {Kaminski,J (1866) -Loriguillo-Gonzalez,G ICCF 2019 0-1 (47)}) 8. Na3 Ng4 9. Nc2 Qb6+ 10. e3 Na6 11. h3 Nf6 12. Ncd4 Nc7 13. a4 a6 14. a5 Qa7 15. Kh2 h6 16. g4 Qb8 {Soar,T (1614)-Forkosh,M (1601) ICCF 2020}) (5. h3 c5 6. Be3 d4 7. cxd4 Nd5 8. Bf2 Nc6 9. e3 cxd4 10. Nxd4 Nxe3 11. Bxe3 Bxd4 12. Bxd4 Nxd4 13. Qa4+ b5 14. Qd1 Qc7 15. Nc3 Qxf4 16. Qd2 Qh4+ {Mayes,F (1546)-Sherwood,H ICCF 2014 0-1 (31)}) 5... Nbd7 (5... O-O 6. e4 dxe4 (6... c5 7. Be2 (7. Na3 Nc6 8. Be2 a6 9. e5 Nh5 10. Nh4 f6 11. f5 fxe5 12. fxg6 Nf4 13. gxh7+ Kxh7 14. O-O Qd6 15. Bf3 Kg8 16. g3 Nh3+ 17. Kh1 Be6 18. Be3 d4 {Rhodes,J (2413)-Staratorzhsky,V (2434) ICCF 2008 1/2 (37)}) (7. e5 Ng4 (7... Nh5 8. Qf2 (8. d4 Nc6 9. Be3 f6 10. Qd2 g5 11. fxg5 cxd4 12. cxd4 fxe5 13. dxe5 Rxf3 14. gxf3 d4 15. Bf2 Nxe5 16. Qd1 Be6 17. Nd2 Nf4 18. Bg3 Ned3+ 19. Bxd3 {Kaminski,J (1959)-Klemm,R (2015) ICCF 2020 0-1 (26) }) (8. Be2 Bh6 9. g3 Nc6 10. Be3 f6 11. exf6 b6 12. f7+ Rxf7 13. d4 Bh3 14. Bb5 Rc8 15. Bxc6 Rxc6 16. Ne5 Re6 17. Nd2 Rxe5 18. dxe5 d4 19. cxd4 cxd4 {Egan,M (2281)-Popov,E (2328) ICCF 2012 0-1}) 8... Qc7 9. Be2 f6 10. exf6 Bxf6 11. O-O Nxf4 12. Bxf4 Qxf4 13. Qxc5 Be6 14. Kh1 Nd7 15. Qg1 Nb6 16. a4 Bd7 17. a5 Na4 18. Ra2 Qc7 19. d4 {Lindqvist,B (2346)-Macchiagodena,M (2369) ICCF 2007 1/2 (38)}) 8. h3 Nh6 9. Qf2 (9. g4 Nc6 10. d4 f6 11. Bg2 Nf7 12. O-O Qb6 13. Qb3 e6 14. Qxb6 axb6 15. exf6 Bxf6 16. Be3 cxd4 17. Nxd4 Nxd4 18. Bxd4 Bxd4+ 19. cxd4 Nd6 20. Na3 Bd7 {Kaminski,J (1959)-Marx,P (1954) ICCF 2020 0-1 (50)}) (9. Be3 Nf5 10. Bf2 d4 11. Nbd2 Nc6 12. Be2 f6 13. exf6 exf6 14. Ne4 b6 {Rhodes,J (2413)-Zhak,B (2337) ICCF 2008 0-1 (39)}) 9... Qc7 10. Be2 f6 11. O-O fxe5 12. fxe5 Nf7 13. d4 Nc6 14. a3 Qb6 15. Kh1 Bd7 16. b4 cxd4 17. cxd4 Nd6 18. Nc3 Ne4 {Fister,B (2204)-Ruimy,M (2363) ICCF 2007 1/2}) 7... Nc6 8. e5 (8. O-O c4 (8... dxe4 9. dxe4 Qc7 10. f5 (10. Na3 a6 11. Nc4 b5 12. Nce5 Bb7 13. Nxc6 Bxc6 14. e5 Nd5 15. c4 Nb4 16. Qb3 Rfd8 17. a3 bxc4 18. Bxc4 Nd5 19. Qc2 Nb6 20. Be2 Bb5 21. f5 Bxe5 {Schmidt,T (2149)-Malmdin,N (2103) ICCF 2016 1/2}) 10... Bd7 11. Bg5 Ng4 12. g3 c4 13. Na3 Nce5 14. Nd4 Qc5 15. Rad1 b5 16. Kg2 h6 17. Bf4 g5 18. Bc1 Nf6 19. Be3 Rad8 20. h3 {Kaminski,J (1959)-Baumann,W (2002) ICCF 2020 0-1 (36)}) (8... Qb6 9. Kh1 Rd8 10. e5 Ng4 11. h3 Nh6 12. g4 f6 13. exf6 exf6 14. d4 cxd4 15. cxd4 Nxd4 16. Nxd4 Qxd4 17. Nc3 {LeSavouroux,H-Bobel,P (2176) ICCF 2008 0-1 (32)}) (8... Rb8 9. e5 Ne8 10. Be3 d4 11. cxd4 cxd4 12. Bd2 Be6 13. b4 Nc7 14. a4 a5 15. b5 Nb4 16. Qb2 f6 17. Na3 fxe5 18. fxe5 Bd5 19. Bxb4 axb4 20. Nc2 {Schmidt,T (2077)-Pérez Domínguez,J (2072) ICCF 2018 1/2}) 9. e5 cxd3 10. Bxd3 Ng4 11. g3 f6 12. exf6 Bxf6 13. h3 Nh6 14. g4 Nf7 15. Be3 e5 16. fxe5 Nfxe5 17. Nbd2 Qd6 18. Kg2 h5 19. Nxe5 Nxe5 {Fister,B (2204)-Guiot-Dorel, J ICCF 2007 1/2 (39)}) 8... Ng4 9. h3 Nh6 10. g4 f6 11. d4 Nf7 12. exf6 exf6 13. Be3 Qe7 14. Bf2 f5 15. g5 cxd4 16. cxd4 Qe4 17. Qxe4 fxe4 18. Ne5 {Beijer, B-Sepers,G ICCF 2013 0-1 (31)}) 7. dxe4 c6 (7... Nbd7 8. Bc4 (8. Be2 Nc5 9. Nbd2 a5 10. O-O c6 11. Ne5 Qc7 12. b3 (12. Bf3 Ne6 13. Nb3 Ne8 14. Nd3 Nd6 15. e5 Nf5 16. Qf2 Rd8 17. Rd1 h5 {1/2 (17) Rhodes,J (2413)-Cottegnie,F (2408) ICCF 2008}) (12. a4 Be6 13. Kh1 Bh6 14. Ra3 Bxf4 15. Rxf4 Qxe5 16. Nf3 Qc7 17. Be3 b6 18. b4 {Kaminski,J (1964)-Marez,S (2203) ICCF 2010 0-1 (53)}) 12... b5 13. Bb2 a4 14. Rad1 axb3 15. axb3 Nfd7 16. Ng4 h5 17. Ne3 Bh6 18. g3 e5 19. Ng2 Ra2 {Nielsen,J (2004)-Rach,J ICCF 2008 0-1 (35)}) (8. e5 Nd5 9. c4 Nb4 10. Qb3 Nc6 11. Be3 f6 12. exf6 exf6 13. Kf2 Re8 14. Nc3 Rxe3 15. Kxe3 Nc5 16. Qd1 Qf8 17. Kf2 Bg4 18. Qd5+ Kh8 19. h3 Bh5 {Beyer Lecaros,A (2028)-Grube,F (2311) ICCF 2016 0-1}) 8... Nc5 9. Nbd2 (9. e5 Bf5 10. Qd2 Qxd2+ 11. Nbxd2 Nfd7 12. Nb3 Nd3+ 13. Bxd3 Bxd3 14. Be3 Rfd8 15. O-O-O Be4 16. Rd4 Bxf3 17. gxf3 Nb6 18. Rxd8+ Rxd8 19. Rd1 Rxd1+ {1/2 (19) Malnar,A (2330)-Dimitrov,D ICCF 2008}) 9... c6 10. O-O b5 11. Be2 Ng4 12. Nb3 Nxb3 13. axb3 Qb6+ 14. Kh1 Nf2+ 15. Rxf2 Qxf2 16. Qd3 Qb6 17. Be3 Qc7 18. Qd1 a5 19. Qe1 {Jalas,A (1755)-Lagergren,H (2133) ICCF 2010 0-1}) 8. Be3 Nbd7 9. h3 Bh6 10. g4 e5 11. Nbd2 Bxf4 12. Bxf4 exf4 13. O-O-O Nc5 14. Rh2 Qc7 15. b4 Ncd7 16. Nc4 Nb6 17. g5 {Fister,B (2204)-Bellec,J ICCF 2007 0-1 (35)}) (5... Nc6 6. e4 dxe4 7. dxe4 Bg4 (7... O-O 8. Be2 (8. Na3 a6 9. Nc4 (9. Be3 e5 10. fxe5 Ng4 11. Bg5 Qd7 12. Rd1 Qe8 13. Nc4 Ncxe5 14. Ncxe5 Nxe5 15. Be2 Nxf3+ 16. Bxf3 Qb5 17. Be3 Be6 18. Be2 Qc6 19. O-O Rad8 20. a3 Bc4 {Dearnley,A (2385)-Borwell,A (2201) ICCF 2010 1/2 (32)}) (9. Be2 e5 10. fxe5 Ng4 11. Bg5 Qe8 12. Nc4 b5 13. Ne3 Ncxe5 14. Nd5 Bb7 15. Nxc7 Nxf3+ 16. gxf3 Qe5 17. Rg1 Qxc7 18. Rxg4 f5 19. exf5 Rxf5 20. O-O-O Qf7 {Kaminski,J (1949)-Cantilo-Paz,A (1862) ICCF 2018 0-1 (43)}) 9... b5 10. Nce5 Nxe5 11. Nxe5 Bb7 12. Bd3 Qd6 13. O-O Rad8 14. Be3 Ng4 15. Nxg4 Qxd3 16. Qxd3 Rxd3 17. Rae1 Rfd8 18. f5 h5 19. Nh6+ Bxh6 {Fister,B (2204)-Fillon,D (2304) ICCF 2007 1/2}) 8... a6 9. Nbd2 Bg4 10. Nc4 e6 11. O-O Qe7 12. a4 b5 13. Ne3 h5 14. b4 Na7 15. e5 Nd5 16. Nxd5 exd5 17. Be3 Bf5 18. Bd3 Bxd3 19. Qxd3 {Kaminski,J (1918) -MacMillen,A (1637) ICCF 2018 1-0 (26)}) 8. Na3 Bxf3 9. gxf3 e6 10. Bb5 O-O 11. Bxc6 bxc6 12. Be3 Nh5 13. Nc4 Bh6 14. Rd1 Qe7 15. Ne5 Bxf4 16. Nxc6 Qe8 17. Bxf4 {Kaminski,J (1949)-Cervený,L (2087) ICCF 2018 0-1 (28)}) 6. e3 (6. Nbd2 O-O 7. e4 a5 (7... dxe4 8. Nxe4 e5 9. fxe5 Nxe4 10. dxe4 Nxe5 11. Be2 Qd6 12. O-O Be6 13. Bf4 Nxf3+ 14. Rxf3 Qc6 15. a4 a6 16. Bd3 Rad8 17. Re1 Rfe8 18. Rf2 Rd7 19. e5 {Kaminski,J (2014)-Jefferson,N (2032) ICCF 2011 0-1 (56)}) 8. Be2 e5 9. Nxe5 Nxe5 10. fxe5 Ng4 11. Nf3 dxe4 12. dxe4 Nxe5 13. O-O Qe7 14. Bf4 Nxf3+ 15. Rxf3 a4 16. Raf1 Be6 17. a3 Bb3 {Egan,M (2281)-Sibbald,P (1928) ICCF 2012 1/2 (41)}) (6. e4 dxe4 7. dxe4 Nc5 8. e5 (8. Nbd2 Nfxe4 9. Nxe4 Bf5 10. Nfd2 ( 10. Nfg5 Qd5 11. Be3 Bxe4 12. Nxe4 Nxe4 13. Qa4+ c6 14. Rd1 Qe6 15. Qc4 Qxc4 16. Bxc4 Nd6 17. Bd3 {Kaminski,J (1994)-Rudykh,S (2088) ICCF 2009 0-1 (88)}) 10... Qd5 11. Bc4 Bxe4 12. Qxe4 Qxe4+ 13. Nxe4 Nxe4 14. Be3 Rd8 15. Ke2 Nd6 16. Bd3 h5 17. Rad1 e6 18. Rd2 O-O 19. Rhd1 e5 {Beijer,B-Kragten,J (2279) ICCF 2013 0-1 (62)}) 8... Bf5 9. Qf2 Nfe4 10. Qe3 Qd5 11. Bb5+ c6 12. Be2 g5 13. fxg5 h6 14. Nh4 Bg4 15. Bxg4 hxg5 16. Nf5 Bxe5 17. Nd2 Bf4 {Bachler, R-Rattinger,T (2456) ICCF 2007 0-1 (35)}) 6... O-O 7. Be2 Re8 8. d4 c5 (8... Ne4 9. O-O Ndf6 10. Nbd2 Bf5 11. Qb3 Rb8 12. Ne5 h5 13. Ndf3 Ng4 14. Nd2 Nxe3 15. Nxe4 Nxf1 16. Nf2 Nxh2 17. Kxh2 e6 18. Be3 f6 19. Nf3 Qd6 20. g3 {Rhodes,J (2413)-Lupynin,V (2376) ICCF 2008 1/2}) 9. b3 (9. O-O c4 10. b3 b5 11. a4 cxb3 12. Qxb3 bxa4 13. Qxa4 Ne4 14. Qa3 Qc7 15. Qa5 Qxa5 16. Rxa5 Bb7 17. Ba3 Ndf6 18. Ne5 e6 19. Rc1 Rec8 20. Bd3 a6 {Flude,D (2119)-Staf,G (1959) ICCF 2007 1/2 (45)}) 9... Ne4 10. O-O Qc7 11. Na3 Ndf6 12. c4 Bf5 13. Bd3 Nd6 14. Bb2 dxc4 { Kaminski,J (1918)-Corujedo Hernández,R (2248) ICCF 2018 0-1 (45)}) (3. d4 Bg7 4. c4 (4. c3 Nf6 (4... Bf5 5. h3 Nc6 6. Nbd2 h5 7. e3 Nf6 8. Bb5 Qd6 9. O-O a6 10. Qa4 Rb8 11. Be2 b5 12. Qd1 e6 13. a4 Ne4 14. Nxe4 Bxe4 15. Qe1 O-O 16. Ng5 {Zdziech,M (2151)-Kinas,T (2161) ICCF 2020 1/2 (34)}) 5. Nbd2 (5. Ne5 O-O 6. Nd2 Nfd7 7. Ndf3 Nxe5 8. fxe5 f6 9. exf6 Bxf6 10. h4 Bg4 11. g3 Nc6 12. Bh3 Bxh3 13. Rxh3 e5 14. g4 e4 15. Ng5 Bxg5 16. Bxg5 Qd7 {Bautista,E (1497)-Wright, D (1619) ICCF 2014 1/2 (32)}) 5... Bf5 6. Qb3 Qc8 7. Qa4+ Nc6 8. e3 O-O 9. Qd1 Re8 10. h3 Ne4 11. Nxe4 Bxe4 12. Ng5 Qd7 13. Qd2 h6 14. b4 hxg5 15. g4 Bxh1 { Mechlenburg-Wängler,W-Dessert,C ICCF 2014 0-1}) (4. g3 c5 5. c3 Nf6 6. Bg2 Qb6 7. e3 Nc6 8. O-O O-O 9. Nbd2 (9. b3 Bf5 10. Bb2 cxd4 11. Nxd4 Rfe8 12. Nxf5 gxf5 13. Qc1 Ng4 14. Kh1 Nxe3 15. Rf3 Nxg2 16. Qd2 Nxf4 17. gxf4 Rad8 {Vecek,M (2312)-Ilyin,P (2283) ICCF 2013 0-1 (41)}) 9... Bg4 10. dxc5 Qxc5 11. Nb3 Qb6 12. Re1 e5 13. Qd3 e4 14. Qe2 Rfe8 15. Bd2 a5 {Sánchez Carmona,J-Cid Gallego,S ICCF 2006 0-1}) 4... dxc4 (4... Nf6 5. cxd5 O-O 6. e3 (6. Nc3 Bf5 7. Qb3 Qc8 8. e3 Rd8 9. Bd2 a6 10. Rc1 Nbd7 11. Ng5 Bh6 12. d6 e6 13. dxc7 Qxc7 14. e4 Bg4 15. e5 Nh5 16. Nce4 Qb6 17. Nf2 Qxd4 {Bassanini,M (1872)-Di Pietro,R (1635) ICCF 2014 1-0 (29)}) 6... Bf5 7. Bd3 Bxd3 8. Qxd3 Nxd5 9. Qb3 c5 10. Nc3 Nxc3 11. bxc3 b6 12. O-O Nc6 13. Qc2 Qd5 14. Ba3 Qc4 15. Rac1 Rfd8 16. Ne5 {Sanjur, R (1914)-Vargas,R ICCF 2016 1/2 (66)}) (4... c6 5. Nc3 Nf6 6. cxd5 (6. Ne5 Nbd7 7. cxd5 cxd5 8. e3 O-O 9. Bd3 Nb6 10. b3 Bd7 11. O-O a6 12. Bb2 Nc8 13. g4 e6 14. Ba3 Re8 15. g5 Ne4 16. Bxe4 dxe4 17. Nxe4 a5 {Dabrowski,J-Kirk,T ICCF 2018 1-0}) 6... cxd5 7. e3 Nc6 8. Bd3 Bg4 9. O-O O-O 10. Qb3 (10. h3 Bxf3 11. Qxf3 e6 12. Bd2 Nb4 13. Bb1 Rc8 14. Be1 Ne8 15. Rf2 Nd6 16. a3 Nc6 17. Bd3 Re8 18. g4 a6 19. Rg2 Na5 20. h4 Ndc4 21. Kh1 b5 {Araújo,O (2041)-Boulet,B (2022) ICCF 2014 1/2 (43)}) 10... Bxf3 11. Rxf3 Qd7 12. Bd2 Rfc8 13. Qd1 e6 14. Rc1 Na5 15. b3 Nc6 16. a3 {Straka,J (2181)-Bredenhof,B (2156) ICCF 2013 1/2 (27)}) 5. e4 ( 5. e3 c5 6. Nc3 cxd4 7. Bxc4 Nc6 8. exd4 Bxd4 9. Qb3 Nh6 10. f5 Nxf5 11. Bxf7+ Kf8 12. Bg5 Be3 13. Rd1 Qb6 14. Qxb6 Bxb6 15. Bd5 h6 16. Bd2 Ne3 {Straka,J (2181)-Perina,G (2237) ICCF 2013 0-1 (32)}) 5... Bg4 6. Nc3 Bxf3 7. Qxf3 Bxd4 8. Bd2 (8. Bxc4 e6 9. Be3 Bxe3 10. Qxe3 c6 11. f5 Qh4+ 12. g3 Qe7 13. fxe6 fxe6 14. e5 Nd7 15. O-O-O Nb6 16. Ne4 Nxc4 17. Qd4 Nb6 18. Rhf1 Rd8 19. Nd6+ Rxd6 { Dreisch,J (2031)-Dinerchtein,V (1906) ICCF 2017 1-0 (52)}) 8... e6 9. Bxc4 Nc6 10. O-O-O Qe7 11. Kb1 Qc5 12. Nb5 O-O-O 13. Rc1 Kb8 14. Rhd1 Nf6 {Fister,B (2109)-Peerdeman,N (2080) ICCF 2018 0-1 (25)}) (3. b3 Bg7 4. Nc3 (4. d4 Nf6 5. e3 c5 6. Bd3 O-O 7. Nbd2 Ng4 8. Qe2 cxd4 9. Bb2 dxe3 10. Bxg7 exd2+ 11. Qxd2 Kxg7 12. O-O Nc6 13. f5 Bxf5 14. Bxf5 gxf5 15. Qg5+ Kh8 {Schuttenhelm,L-Fels,B (2133) ICCF 2012 0-1 (27)}) 4... Nc6 5. Bb2 Bf5 6. e3 Nh6 7. Bb5 O-O 8. Bxc6 bxc6 9. Na4 Bxb2 10. Nxb2 Qd6 11. O-O c5 12. h3 f6 13. d3 Rad8 14. Re1 Bc8 { McClure,D (2135)-Sladek,V (1824) ICCF 2011 1/2 (32)}) 3... Bg7 (3... c5 4. Bb5+ (4. Be2 Bg7 5. O-O Nc6 (5... Nf6 6. b3 (6. d3 O-O (6... Nc6 7. Nc3 d4 8. Ne4 Nd5 9. Nxc5 Qc7 10. g3 Nxe3 11. Bxe3 dxe3 12. c3 b6 13. Nb3 O-O 14. d4 a5 15. a4 Be6 16. Re1 {Andreassen,E (2204)-Repanic,F (2059) ICCF 2011 1/2 (29)}) 7. Qe1 Nc6 8. c3 b6 9. Nbd2 (9. Qh4 Ba6 10. Na3 Qc7 11. Bd2 Rfd8 12. Rae1 Bc8 13. Bd1 b5 14. Nxb5 Qb6 15. c4 Bf5 16. Ne5 Nxe5 17. fxe5 Nd7 18. d4 dxc4 19. e4 Be6 {Fister,B (2221)-Castelló Benavent,J (2173) ICCF 2008 1/2 (39)}) 9... Qd6 10. Qh4 Ba6 11. Rf2 Rad8 12. e4 dxe4 13. dxe4 Bxe2 14. Rxe2 Qd3 15. Re1 Ne8 16. Nf1 Nd6 17. f5 gxf5 {Sharpe,S (2179)-Gleyzer,L (2301) ICCF 2013 1/2 (29)}) 6... Ne4 7. Ne5 Nd7 8. Bb2 O-O 9. Nd3 Bxb2 10. Nxb2 b6 11. Nc3 Nxc3 12. dxc3 Bb7 13. Bf3 Nf6 14. c4 e6 15. Qe1 Qe7 16. Qc3 Ne4 17. Bxe4 {Maltais,C (2181)-Williamson,D (2341) ICCF 2018 1/2 (48)}) 6. d3 (6. Bb5 Qb6 7. c4 a6 8. Bxc6+ Qxc6 9. cxd5 Qxd5 10. Nc3 Bxc3 11. dxc3 Qxd1 12. Rxd1 Nf6 13. b4 c4 14. Rd4 b5 15. a4 Bb7 16. Bd2 Ne4 17. Be1 f6 {Schmidt,T (2086)-Lanin,B (2038) ICCF 2018 1/2 (52)}) 6... Qb6 7. c3 Bf5 8. d4 Nf6 9. Bd3 Ne4 10. dxc5 Qxc5 11. Nd4 e5 12. Nxf5 gxf5 13. Qh5 O-O 14. Qxf5 Ne7 15. Qh3 exf4 {Kaminski,J-Bearce,H (1731) ICCF 2008 1-0 (26)}) (4. d4 cxd4 (4... Bg7 5. c3 Nf6 6. Bd3 Nc6 7. O-O O-O 8. Nbd2 Qb6 9. Kh1 Bg4 10. Qe1 Rac8 11. Ne5 Be6 12. b3 Nxe5 13. dxe5 Nd7 14. e4 c4 15. exd5 cxd3 16. dxe6 {Reis,J-Robert,G ICCF 2009 0-1 (34)}) 5. exd4 Bg7 6. Ne5 Nh6 7. Bb5+ Bd7 8. Nxd7 Nxd7 9. c3 Nf5 10. Qe2 O-O 11. O-O e6 12. Nd2 Nf6 13. Nf3 Rc8 14. Bd2 a6 15. Bd3 Re8 {Andreassen,E (2317)-Marquardt,G (2211) ICCF 2009 1/2 (31)}) (4. b3 Bg7 5. Ne5 Nd7 6. Bb2 Nxe5 7. Bxe5 Bxe5 8. fxe5 Nh6 9. Qf3 O-O 10. Qf4 Kg7 11. h3 Bf5 12. c4 d4 13. g4 Bxb1 14. Rxb1 dxe3 15. Qxe3 f5 { Cook,D (2232)-Pheby,I (2356) ICCF 2015 1/2 (44)}) 4... Bd7 5. O-O (5. a4 Nc6 6. O-O Bg7 7. Nc3 a6 8. Bxc6 Bxc6 9. d3 Rc8 10. Ne5 Nf6 11. a5 O-O 12. Qe1 Qd6 13. Bd2 Nd7 14. Nxc6 Qxc6 15. e4 dxe4 16. Qxe4 Qxe4 {Guzman,H-Sánchez Carol,J (2064) ICCF 2013 0-1 (39)}) (5. Bxd7+ Nxd7 (5... Qxd7 6. Ne5 Qc8 (6... Qe6 7. Qe2 a6 8. d3 Bg7 9. e4 Bxe5 10. exd5 Qxd5 11. fxe5 Nc6 12. O-O Qd4+ 13. Be3 Qxb2 14. Nd2 Qxc2 15. Rfc1 Qb2 16. Rab1 Qxe5 17. Nc4 Qc7 18. Rf1 {Arnold,G (2236)-Paleckis,E (2162) ICCF 2017 1-0 (34)}) 7. O-O Bg7 8. c4 dxc4 9. Na3 Nf6 10. Naxc4 O-O 11. b3 b5 12. Qf3 Nbd7 13. Na3 Nxe5 14. fxe5 Nd7 15. d4 b4 16. Nc4 Nb6 17. Qe2 {Roynet,S (1941)-Dimitrios,E ICCF 2020 1/2 (52)}) 6. d3 (6. Nc3 Bg7 (6... Ngf6 7. O-O Bg7 8. d4 O-O 9. Qd3 Rc8 10. a4 Nb8 11. Rd1 cxd4 12. exd4 Nc6 13. Qb5 Qc7 14. Ne5 Rfd8 15. Be3 a6 16. Qd3 Nb4 17. Qe2 Ne4 18. Ra3 { Rhodes,J (2402)-Klausen,T (2472) ICCF 2007 1/2 (28)}) 7. Nxd5 e5 8. O-O Ne7 9. Nxe7 Qxe7 10. d4 Rd8 11. c3 e4 12. Nd2 O-O 13. Qb3 Nf6 14. Nc4 Nd5 15. Bd2 a6 16. Ne5 f6 17. Nc4 Qc7 {Vestergård,S (2136)-Daskal,Y (2123) ICCF 2011 0-1}) 6... Bg7 7. O-O e6 8. e4 Ne7 9. c4 (9. c3 Qc7 10. Be3 O-O 11. e5 f6 12. d4 fxe5 13. fxe5 Nf5 14. Bf2 Rac8 15. Qe2 cxd4 16. cxd4 Qc4 17. Qxc4 Rxc4 18. Na3 Rb4 19. b3 Nxd4 20. Bxd4 Rxf3 {Arnold,G (2256)-Johnston,A (2394) ICCF 2018 1/2 (46) }) 9... O-O 10. Nc3 (10. cxd5 exd5 11. Nc3 Qb6 12. Kh1 Rac8 13. a4 Rfe8 14. e5 f6 15. Re1 a6 16. Bd2 fxe5 17. fxe5 Qe6 18. d4 Nf5 19. Be3 Nxe3 20. Rxe3 Rcd8 21. Ng5 Qc6 {Arnold,G (2226)-Kurgansky,V (2427) ICCF 2011 1/2 (40)}) 10... Nb8 11. Qe1 Nbc6 12. cxd5 exd5 13. f5 gxf5 14. Qg3 fxe4 15. dxe4 {Arnold,G (2267) -Storkebaum,K (2254) ICCF 2018 1/2 (40)}) (5. Be2 Bg7 6. O-O Nf6 7. d3 O-O 8. Nbd2 Bc6 9. Qe1 Nbd7 10. c3 b5 11. Ne5 Bb7 12. Ndf3 Nxe5 13. fxe5 Ng4 14. d4 Qb6 15. Qh4 Nh6 16. e4 dxe4 {Lannoy,J-Alberts,J (1809) ICCF 2009 1/2}) 5... Bxb5 6. d3 Bg7 7. Nc3 Ba6 8. Bd2 e6 9. Ne5 Ne7 10. a4 Nbc6 11. Nxc6 Nxc6 12. Nb5 Bxb2 13. Rb1 Bg7 14. Na3 O-O 15. a5 {Vila Nova,R (1311)-Nopin,V (2197) ICCF 2018 0-1 (26)}) (3... Bg4 4. Be2 (4. h3 Bxf3 5. Qxf3 Bg7 6. g4 Nf6 7. d3 ( 7. g5 Ne4 8. d3 Nc5 9. h4 O-O 10. h5 d4 11. hxg6 fxg6 12. exd4 Ne6 13. Qxb7 Nd7 14. Qb3 Rf7 15. Qxe6 {1-0 (15) Bowen,F-Popa,A (1627) ICCF 2014}) 7... O-O 8. c3 e6 9. g5 Ne8 10. h4 f5 11. h5 e5 12. hxg6 hxg6 13. fxe5 Bxe5 14. Qh3 Bg7 15. e4 Qe7 {Bruce,R-Watson,W ICCF 2013 1-0 (25)}) 4... c6 (4... Bxf3 5. Bxf3 c6 6. O-O Nd7 7. d4 Ngf6 8. Nd2 Qc7 9. c4 e6 10. Rb1 Bb4 11. Qc2 Be7 12. b4 O-O 13. c5 a5 14. a3 axb4 15. axb4 Ra7 16. g4 {Schmidt,T (2143)-Krett,V (1905) ICCF 2017 1-0 (76)}) 5. O-O Bg7 6. c4 e6 7. Nc3 Ne7 8. Qb3 (8. d4 O-O 9. a4 Nd7 10. a5 dxc4 11. Bxc4 c5 12. d5 exd5 13. Nxd5 Rb8 14. h3 Bf5 15. Nc3 Bxc3 16. bxc3 Nf6 17. Ne5 Be4 18. Qb3 Bd5 19. Re1 Bxc4 {Lilleeng,A (2134)-Halme,O (2165) ICCF 2010 1/ 2 (66)}) 8... b6 9. d4 O-O 10. h3 Bxf3 11. Bxf3 Nd7 12. g4 Nf6 13. cxd5 exd5 14. Qc2 Ne8 15. b3 {Zhdanenia,K (2299)-Mironchik,A (1856) ICCF 2017 1/2 (60)}) 4. c4 (4. d4 Nh6 (4... c5 5. c3 (5. Nc3 cxd4 6. exd4 Nf6 7. Bd3 Nc6 8. O-O O-O 9. Be3 Bg4 10. a3 e6 {Degtyaryov,S (2248)-Sciallero,V (2196) ICCF 2012}) (5. c4 cxd4 6. cxd5 Nf6 7. Qxd4 Qxd5 (7... O-O 8. Bc4 Bf5 9. O-O Nbd7 10. Nh4 Rc8 11. Nxf5 gxf5 12. Bb3 Nc5 13. Nc3 Nfe4 14. Qd1 Bxc3 15. bxc3 Nxc3 16. Qf3 Nxb3 17. axb3 Ne4 18. Qd1 a6 19. Ba3 {Roynet,S (2089)-Mikhailov,V (2330) ICCF 2017 0-1 (57)}) 8. Nc3 Qxd4 9. Nxd4 O-O 10. Be2 Bd7 11. Bf3 Nc6 12. Nxc6 Bxc6 13. Bxc6 bxc6 14. Ke2 Nd5 15. Bd2 e5 16. Nxd5 cxd5 {Berthelsen,R (2043)-Ivanov,V (2185) ICCF 2015 1/2}) 5... Qc7 (5... Nf6 6. Nbd2 O-O 7. Bd3 Qb6 (7... Bg4 8. h3 Be6 9. Ne5 Nbd7 10. O-O Qc7 11. Qe1 Bf5 12. Bxf5 gxf5 13. Qh4 Rad8 14. Rf3 Ne4 15. Nxe4 fxe4 16. Rg3 Nxe5 17. dxe5 Kh8 18. Qh5 f6 19. exf6 {García Díez,M (2082) -Torrijos Alhambra,J ICCF 2008 1/2 (29)}) 8. Qe2 Nc6 9. O-O Bg4 10. Qf2 Rae8 11. Ne5 Be6 12. Qh4 Nd7 13. Nxd7 Bxd7 14. Kh1 Na5 15. f5 Bf6 16. Qg3 Kh8 17. e4 {Recasens Sánchez,J-Fajs,B ICCF 2006 1/2 (30)}) 6. Be2 Nf6 7. O-O O-O 8. b3 Nc6 9. Bb2 Bf5 10. Na3 Qa5 11. Bd3 Ne4 12. Qe1 e6 13. Bxe4 Bxe4 14. Rf2 Rac8 15. Ne5 Nxe5 16. fxe5 {Gérard,A (1927)-Sánchez,M (2399) ICCF 2013 0-1 (31)}) (4... Nd7 5. Bd2 c5 6. Nc3 e6 7. Qe2 c4 8. e4 dxe4 9. Nxe4 Nb6 10. Bb4 Bf8 11. Bxf8 Kxf8 12. O-O-O Ne7 13. h4 Qc7 14. g3 Nf5 15. Qe1 Nd5 16. h5 {Hernández Delgado, J (1873)-García Velayos,C (1650) ICCF 2013 1-0 (26)}) (4... c6 5. Be2 f5 6. O-O Nf6 7. c4 O-O 8. c5 b6 9. b4 a5 10. bxa5 bxc5 11. Ne5 Ne4 12. Bb2 Qxa5 13. Qc2 Ba6 14. Nf3 cxd4 15. exd4 c5 16. Ne5 {Velez Arana,J (1671)-Dijk,J (1547) ICCF 2017 0-1 (33)}) 5. c4 (5. Bd3 O-O 6. O-O (6. c3 Bf5 7. O-O Nd7 8. b3 c5 9. Bb2 Qc7 10. Na3 a6 11. c4 e6 12. Rc1 b6 13. Nb1 Rfe8 14. cxd5 exd5 15. Nc3 Qb7 16. Ne5 Nxe5 17. dxe5 Be6 {Gérard,A (1927)-Müllhaupt,P (2040) ICCF 2013 1/2 (48)}) 6... c5 (6... Bf5 7. Be2 (7. Nh4 Bxd3 8. cxd3 e5 9. Qe1 exf4 10. exf4 Nc6 11. Nc3 Re8 12. Qg3 Nxd4 13. Bd2 Ne2+ 14. Nxe2 Rxe2 15. Bc3 d4 16. Bb4 Rxb2 17. Ba3 Re2 18. Rf3 Bf6 {Voglimacci,N-Fillon,D (2224) ICCF 2011 0-1 (26)}) 7... Nd7 8. a4 (8. Nc3 Nb6 9. h3 c6 10. a4 Qc7 11. g4 Be6 12. a5 Nc8 13. Ng5 Bd7 14. e4 f6 15. Nf3 dxe4 16. Nxe4 Nd6 17. Nc5 Rae8 18. Qd3 Nhf7 19. Qb3 e6 {Ricard, J-Mannhart,M (2325) ICCF 2003 1-0 (46)}) (8. c3 f6 9. Qb3 Nb6 10. Nbd2 Qd7 11. e4 Be6 12. e5 Ng4 13. Re1 fxe5 14. fxe5 c6 15. Nf1 Nc4 16. Bd3 b5 17. Qc2 Bf5 18. b3 Nb6 19. Ng3 e6 {Shannon,P (1934)-Disque,P ICCF 2014 1/2 (30)}) 8... c6 9. Nbd2 Ng4 10. Ra3 Qc7 11. h3 Ngf6 12. g4 Be4 13. g5 Ne8 14. Nxe4 dxe4 15. Nd2 Nd6 16. c3 c5 17. b4 cxd4 18. cxd4 {Ricard,J-Bernard,C (2369) ICCF 2003 0-1 (47)}) 7. c3 (7. Qd2 Qc7 8. Nc3 e6 9. dxc5 Qxc5 10. Nb5 a6 11. Nbd4 Nc6 12. c3 Bd7 13. Rd1 Rfe8 14. Kh1 e5 15. fxe5 Nxe5 16. Nxe5 Rxe5 17. h3 Rae8 18. Qf2 Nf5 {Roth,P (2005)-De Blois Figueredo,A (1972) ICCF 2007 0-1 (52)}) 7... Qc7 8. Na3 (8. Nbd2 Bf5 9. Bb1 (9. Qe2 Bxd3 (9... Rd8 10. Ne5 Nd7 11. Ndf3 Bxd3 12. Nxd3 Nf5 13. b3 c4 14. bxc4 Qxc4 15. Rb1 b6 16. Ba3 Qxc3 17. Bb4 Qc7 18. Rbc1 Qb7 19. g4 Nd6 20. Bxd6 exd6 21. g5 {Lindemann,R (2248)-Niewold,J (1818) ICCF 2013 1/2 (35)}) 10. Qxd3 Nd7 11. e4 cxd4 12. Nxd4 Nc5 13. Qe2 Nxe4 14. Nxe4 dxe4 15. Qxe4 Qb6 16. Kh1 Bxd4 17. cxd4 Rfd8 18. Qxe7 Rac8 19. b3 Nf5 20. Qe5 Re8 { Guzman,H-Plew,J ICCF 2013 0-1 (26)}) 9... Nd7 10. h3 Bxb1 11. Rxb1 Nf5 12. Qe1 Nf6 13. Ne5 Nd6 14. dxc5 Qxc5 15. Nb3 Qc7 16. Nd4 Nfe4 17. Qh4 Bxe5 18. fxe5 Nc4 19. e6 f6 {Potter,M-Press,S (1928) ICCF 2014 0-1}) (8. h3 Nf5 9. Re1 Nd6 10. b3 Bf5 11. Ba3 Nd7 12. Ne5 b6 13. dxc5 Nxc5 14. Bxf5 Nxf5 15. Bxc5 bxc5 16. Qxd5 Rad8 17. Qe4 Ng3 18. Qf3 Bxe5 19. Qxg3 Bg7 {Gouw,C (2579)-Stalmach,K (2547) ICCF 2008 0-1 (48)}) 8... a6 9. Nc2 (9. Bd2 Nd7 10. h3 c4 11. Bc2 Nf6 12. Nh4 e6 13. g4 Ne4 14. Be1 f5 15. g5 Nf7 16. Nf3 a5 17. h4 Bd7 18. Nb1 Qb6 19. Qc1 a4 20. a3 h5 {Aldred,J-Ewan,R (2238) ICCF 2015 1/2 (44)}) 9... c4 10. Be2 Nd7 11. Bd2 Nf5 12. Ne5 Nb6 13. Nb4 a5 14. Nc2 f6 15. Nf3 Nd7 16. b3 b5 { Korman,J-Schreiner,M (2044) ICCF 2009 1/2 (25)}) 5... c6 (5... e6 6. Nc3 (6. Be2 Nf5 7. O-O O-O 8. Nc3 h5 9. Bd2 c6 10. Bd3 a5 11. Rc1 c5 12. Bxf5 exf5 13. Nxd5 Be6 14. Qb3 cxd4 15. Qxb7 Bxd5 16. Qxd5 Qxd5 17. cxd5 dxe3 {Arnold,G (2221)-Mulde,R (2174) ICCF 2016 1-0 (26)}) 6... b6 (6... O-O 7. Be2 b6 8. Ne5 Bb7 9. Qa4 c5 10. cxd5 cxd4 11. exd4 exd5 12. O-O f6 13. Nf3 Nc6 14. Nxd5 Nf5 15. Bd3 Ncxd4 16. Nxd4 Nxd4 17. Be3 Ne6 18. Nb4 {Groot,P (2142)-Koelewijn,A ICCF 2015 1/2}) 7. Qa4+ c6 8. Be2 O-O 9. O-O Bb7 10. Rd1 Nf5 11. Ne5 Qe7 12. Bd2 Rc8 13. cxd5 cxd5 14. Bd3 f6 15. Nf3 Nd6 16. Rac1 Nc6 17. Re1 {Pisani,C (2139)-Quiñones Borda,J (2284) ICCF 2016 0-1 (40)}) (5... dxc4 6. Bxc4 O-O 7. O-O c5 8. d5 Nf5 9. Nc3 Nd6 10. Qe2 Nxc4 11. Qxc4 Nd7 12. Bd2 b5 13. Qxb5 Rb8 14. Qc4 Rxb2 15. Rab1 Rxb1 16. Rxb1 Qa5 17. Nb5 {Greshnykh,M (2243)-Fagerström, B (2146) ICCF 2008 1/2}) (5... O-O 6. Nc3 (6. cxd5 Qxd5 7. Nc3 Qe6 8. Bd3 c6 9. O-O Rd8 10. b3 b6 11. Ng5 Qd7 12. Nce4 f5 13. Ng3 c5 14. Bc4+ Kh8 15. Ne6 Rg8 16. Nxg7 Kxg7 17. Bxg8 Nxg8 {Rinaldi,M (1735)-Di Pietro,R (1667) ICCF 2012 1-0 (33)}) 6... dxc4 7. Bxc4 c5 8. dxc5 Qxd1+ 9. Nxd1 Nd7 10. c6 bxc6 11. Bd2 e5 12. O-O e4 13. Ng5 Nb6 14. Bb3 a5 15. a4 Ba6 16. Rc1 Bxf1 17. Kxf1 {Gonçalves, C (1918)-Pappier,C (2373) ICCF 2006 0-1 (38)}) 6. Nc3 O-O 7. cxd5 (7. Bd2 e6 ( 7... b6 8. cxd5 cxd5 9. Rc1 Bb7 10. Bb5 Nf5 11. O-O Nd6 12. Bd3 Nd7 13. Qe2 Nf6 14. Rc2 Rc8 15. Rfc1 Nfe4 16. b4 e6 17. b5 f6 18. Qe1 Qd7 19. a4 {Gonçalves,C (1918)-Piccoli,F (2147) ICCF 2006 1/2 (49)}) 8. Bd3 (8. Rc1 Nd7 9. Bd3 dxc4 10. Bxc4 c5 11. dxc5 Nxc5 12. O-O Nf5 13. b4 Nd6 14. Be2 Nce4 15. Ne5 f6 16. Nc4 Nxd2 17. Qxd2 Nxc4 18. Qxd8 Rxd8 19. Bxc4 Bf8 {Geus,A (2165)-Pawlowski,W (2140) ICCF 2010 1/2 (26)}) 8... c5 9. dxc5 Na6 10. O-O Nxc5 11. Bc2 (11. Be2 Nf5 12. Qc2 b6 13. Rad1 Bb7 14. Bc1 Qe7 15. g4 Nh6 16. cxd5 exd5 17. Nd4 Rfd8 18. g5 Nf5 19. Nxf5 gxf5 20. Nb5 Ne6 21. Qxf5 d4 22. Bd3 dxe3 {Arnold,G (2422) -Legemaat,G (2371) ICCF 2006 0-1 (52)}) 11... dxc4 12. Ne5 b6 13. Ne4 Qc7 14. Nxc5 Qxc5 15. Be4 Rb8 16. Nc6 Rb7 17. Qe2 a5 18. b4 cxb3 {Geus,A-Kovernikov,B (2331) ICCF 2009 1/2 (61)}) (7. Bd3 dxc4 8. Bxc4 Nf5 9. O-O Nd7 10. Be2 c5 11. d5 Nd6 12. Qc2 Bxc3 13. bxc3 Nf6 14. c4 Bf5 15. Bd3 Bxd3 16. Qxd3 b5 17. cxb5 a6 18. bxa6 c4 {Dunks,P (1890)-Jefferson,N (2142) ICCF 2017 0-1 (69)}) 7... cxd5 8. Qb3 (8. Bd2 Nc6 9. Rc1 b6 10. Bd3 Bb7 11. O-O Rc8 12. Ne2 e6 13. Qa4 Nf5 14. Ne5 Nfe7 15. b4 a6 16. b5 axb5 17. Qxb5 Re8 18. Qb2 Ra8 19. Rc2 Bf8 { Rubinas,P (2562)-Avotins,M (2430) ICCF 2011 1/2 (31)}) 8... e6 9. Bd2 Nc6 10. Bd3 Nf5 11. O-O Bd7 12. Rac1 (12. Ne5 Qe7 13. Rac1 Rfc8 14. Nxd7 Qxd7 15. Bxf5 gxf5 16. Rf2 Na5 17. Qd1 Nc4 18. b3 Nd6 19. Qh5 Rc6 20. Be1 Rac8 21. Rfc2 R8c7 22. Qe2 Qc8 23. Qd3 a5 {Hasidume,S (2207)-Chorfi,K (2095) ICCF 2007 0-1 (30)}) 12... Qe7 13. Na4 Rfc8 14. Nc5 Nd6 15. Nxd7 Qxd7 {Brundisch,V (2141)-Höchli,M ICCF 2007 1/2 (47)}) (4. Be2 Nh6 (4... Nd7 5. O-O (5. d4 Ngf6 6. O-O O-O 7. c3 c5 8. Ne5 Ne4 9. Nd2 Ndf6 10. Nxe4 Nxe4 11. Bf3 Be6 12. Qc2 f5 13. Bd2 Qc7 14. Rad1 Rac8 15. Bc1 Qb6 16. Qe2 Bf6 {Nielsen,J (1913)-Siikaluoma,A (2271) ICCF 2006 1/2 (38)}) 5... Ngf6 6. d3 c5 7. a4 O-O 8. c3 (8. Qe1 Re8 9. Nc3 h6 10. Qg3 Qb6 11. Ne5 d4 12. Nc4 Qd8 13. exd4 cxd4 14. Nb5 a6 15. Nba3 b5 16. Bf3 Ra7 17. axb5 axb5 18. Ne5 Nxe5 19. fxe5 b4 {Oaker,W (2252)-Koops,M (2259) ICCF 2006 1-0 (32)}) 8... Re8 9. Ne5 Qc7 10. d4 Ne4 11. Nd2 Ndf6 12. Nxe4 Nxe4 13. c4 Be6 14. Bf3 Rac8 15. Bxe4 dxe4 16. d5 {Eilmes,D (2321)-Ograbek,G (2354) ICCF 2006 0-1 (81)}) 5. d4 (5. O-O O-O 6. Qe1 (6. d3 b6 (6... c5 7. Na3 a6 ( 7... Nc6 8. c3 Rb8 9. e4 d4 10. Bd2 dxc3 11. Bxc3 Bg4 12. Qd2 Nd4 13. Nc2 Nxe2+ 14. Qxe2 Rc8 15. h3 Bxf3 16. Rxf3 Qd6 17. Qf2 a6 18. Rd1 Qe6 19. a3 {Fister,B (2221)-Pérez Marco,G (2172) ICCF 2008 1-0 (38)}) (7... b6 8. c3 Bb7 9. Bd2 Nf5 10. Qc2 Nd6 11. c4 d4 12. exd4 Nf5 13. d5 e6 14. dxe6 Nd4 15. Nxd4 Qxd4+ 16. Kh1 Qxb2 17. Qxb2 Bxb2 18. Nb5 Bxa1 19. Rxa1 {Lilleeng,A (2040)-Fagerström,M (2023) ICCF 2008 1/2 (52)}) 8. c3 Re8 9. Nc2 Nc6 10. e4 b6 11. Qe1 e6 12. e5 Bb7 13. d4 Rc8 14. Bd3 Nf5 15. g4 Nfe7 16. Be3 cxd4 17. Ncxd4 Nxd4 18. Nxd4 { Fister,B (2235)-Daenen,S (2219) ICCF 2008 1-0 (48)}) (6... c6 7. c3 Nf5 8. Na3 Nd6 9. Qc2 Nd7 10. e4 dxe4 11. dxe4 Nc5 12. e5 Bf5 13. Qd1 Nde4 14. Be3 Qxd1 15. Bxd1 f6 16. Bc2 Rad8 17. Nc4 Rd5 18. Bxc5 {Jan,P-Ward,R (2415) ICCF 2006 1-0 (39)}) 7. c4 (7. a4 c5 8. Na3 Bb7 9. c3 Nf5 10. Qc2 Nd6 11. Nb5 Nxb5 12. axb5 Qe8 13. Qb3 Nd7 14. d4 Nf6 15. dxc5 bxc5 16. c4 a6 17. b6 e6 18. Rd1 a5 { Anderson,A (2093)-Reynolds,C (2098) ICCF 2020 0-1 (69)}) (7. c3 Bb7 8. Na3 Nf5 9. Bd2 Nd6 10. Rc1 Nd7 11. d4 Rc8 12. Nb5 Nxb5 13. Bxb5 Nf6 14. b4 Ne4 15. Qa4 Qd6 16. Rfd1 Rcd8 17. Be1 a6 18. Bd3 b5 {Lilleeng,A (2146)-Kipso,A (2132) ICCF 2010 1/2 (53)}) 7... dxc4 8. d4 Bb7 9. Nc3 (9. Bxc4 Nf5 10. Nc3 e6 11. Ne5 c5 12. d5 exd5 13. Bxd5 Bxd5 14. Qxd5 Na6 15. e4 Nd4 16. Qc4 Nc7 17. Rb1 Qe7 18. b4 Rfd8 19. a3 Rac8 20. b5 Qe6 {Fister,B (2204)-Satici,A (2335) ICCF 2007 0-1 (63)}) 9... Nd7 10. Bxc4 c5 11. e4 cxd4 12. Nxd4 Qc8 13. Bd5 Nf6 14. Bxb7 Qxb7 15. e5 Rfd8 16. Qf3 Qxf3 17. Nxf3 Nd5 {Perry,D (2376)-Nielsen,P (2311) ICCF 2005 1/2}) 6... c5 7. d3 Nc6 8. e4 (8. a3 Nf5 9. Nh4 Nxh4 10. Qxh4 Bf6 11. Qe1 Be6 12. Nd2 Qb6 13. Rb1 c4 14. Nf3 Bf5 15. Nh4 cxd3 16. cxd3 Bxh4 17. Qxh4 Qb3 18. Bd2 Bxd3 19. Bxd3 Qxd3 {Walsh,H (1633)-Kellett,S ICCF 2017 0-1 (40)}) (8. Kh1 Nf5 9. e4 (9. c3 e5 10. fxe5 Nxe5 11. Nxe5 Bxe5 12. e4 dxe4 13. dxe4 Nd6 14. Bf4 Bxf4 15. Rxf4 b6 16. Nd2 Bb7 17. Bd3 Re8 18. Qg3 Rc8 19. Re1 c4 20. Bc2 Rc5 {Kaminski,J (2011)-Neves,B (2008) ICCF 2012 1/2 (42)}) 9... Nfd4 10. Nxd4 cxd4 11. Na3 dxe4 12. dxe4 a6 13. Bf3 Qc7 14. Bd2 b5 15. e5 Be6 16. c4 bxc4 17. Rc1 c3 18. bxc3 d3 19. Be3 Rac8 {Kaminski,J (2019)-Jozefini,L (2029) ICCF 2013 1/2 (71)}) 8... c4 (8... b6 9. c3 Ba6 10. Ng5 Qd7 11. Nd2 Rae8 12. Ndf3 f6 13. Nh3 e5 14. fxe5 Nxe5 15. Nxe5 Rxe5 16. Nf2 Nf7 17. Bf4 Re6 18. exd5 Qxd5 19. Bf3 Qd7 20. Qd2 {Schulze,P (2115)-Roubaud,D (2531) ICCF 2018 0-1}) 9. Nc3 (9. Kh1 cxd3 10. cxd3 Bg4 11. Nc3 e6 12. h3 Bxf3 13. Bxf3 Rc8 14. a3 Na5 15. Bd1 a6 16. Bd2 dxe4 17. Na4 b6 18. Bxa5 bxa5 19. dxe4 Qd3 20. Rf3 Qb5 {Maltais,C (2070)-Cheek,C (1926) ICCF 2014 1/2 (37)}) 9... Nb4 10. Qd1 Qb6+ 11. Kh1 Ng4 12. a3 cxd3 13. exd5 Nxc2 14. Qxd3 Nxa1 15. h3 Bf5 16. Qb5 Nf2+ {Bruce, R-Iacomi,S ICCF 2013 0-1 (25)}) 5... O-O (5... c5 6. O-O cxd4 7. exd4 Nc6 (7... Nf5 8. c3 Nd7 9. Na3 O-O 10. Nc2 Nf6 11. a4 (11. Ne5 h5 12. Bd3 b6 13. b3 Re8 14. Ne3 e6 15. Bb5 Bd7 16. Bd3 a6 17. a4 Qc7 18. c4 Qb7 19. Nxf5 exf5 20. h3 a5 21. cxd5 Nxd5 22. Bc4 Be6 {Roynet,S (1941)-Bailey,M ICCF 2020 0-1 (71)}) 11... e6 12. Ne3 b6 13. Nxf5 exf5 14. a5 a6 15. axb6 Qxb6 16. Ne5 a5 17. Ra3 Ba6 18. Re1 Rfb8 19. Bxa6 {Roynet,S (1903)-Bailey,M (2158) ICCF 2020}) 8. c3 Nf5 (8... O-O 9. Na3 Nf5 10. Nc2 Nd6 11. Ne3 e6 12. b3 b6 13. g3 Bb7 14. Ba3 Re8 15. Rc1 Ne4 16. Nd2 Qc7 17. Nxe4 dxe4 18. d5 exd5 19. Nxd5 Qd8 20. Ne3 {Bobel,P (2306) -Conterno,D (2347) ICCF 2014 1/2 (28)}) 9. Na3 Nd6 10. Nc2 Bg4 11. Ne5 Bxe2 12. Qxe2 O-O 13. Ne3 e6 14. a4 Qc7 15. N3g4 Rac8 16. Be3 Na5 17. Bf2 {Foreman, A-Gardner,A (2142) ICCF 2016 0-1 (29)}) 6. O-O Nd7 (6... Nf5 7. c4 (7. Bd3 c5 8. c3 Nd7 9. Qc2 Nd6 10. Re1 c4 11. Bf1 Nf6 12. b3 Bf5 13. Qe2 Bd3 14. Qb2 Bxf1 15. Rxf1 b5 16. Qe2 Qc8 17. Nbd2 cxb3 18. Nxb3 Nfe4 {Humbert,P-Beck,G (2223) ICCF 2008 0-1 (41)}) 7... dxc4 8. Bxc4 (8. Na3 b6 9. Nxc4 Bb7 10. Qc2 Nd6 11. b3 Nd7 12. Ba3 Be4 13. Bd3 Bxd3 14. Qxd3 c5 15. Rac1 Nf5 16. g4 Nh6 17. h3 Qc7 18. dxc5 Nxc5 19. Bxc5 Qxc5 {Richter,F-Disque,P ICCF 2020 (38)}) 8... Nd7 (8... c5 9. dxc5 Qc7 10. Qc2 e6 11. Be2 b6 12. Na3 Bb7 13. Nb5 Qc6 14. e4 Qxe4 15. Qxe4 Bxe4 16. g4 a6 17. gxf5 axb5 18. cxb6 Nd7 19. fxe6 fxe6 20. Bxb5 {Maltais, C-Calza,G ICCF 2014 1/2}) 9. Qc2 c5 10. dxc5 Qc7 11. g4 (11. Rd1 Nxc5 12. Nc3 Be6 13. Bxe6 Nxe6 14. e4 Nfd4 15. Qf2 Nxf3+ 16. Qxf3 Bxc3 17. bxc3 Rfd8 18. Rxd8+ Rxd8 19. Rb1 Qc5+ 20. Be3 Qxc3 21. Bxa7 Qc2 22. Rf1 Qxa2 {Gonçalves,C (2057)-Andersson,M ICCF 2008 0-1 (37)}) 11... Nh6 12. h3 Qxc5 13. a4 Kh8 14. Na3 e5 15. Rb1 a5 16. fxe5 Nxe5 17. Nxe5 Qxe5 18. e4 {Bellette,A (2156) -Campbell,J (2161) ICCF 2006 0-1 (39)}) (6... Bg4 7. c3 Nd7 8. h3 Bxf3 9. Bxf3 c6 10. Nd2 Nf5 11. Qe1 Nf6 12. e4 dxe4 13. Nxe4 Nxe4 14. Bxe4 e6 15. Qf2 Bf6 16. Qf3 Bh4 17. Bd3 Ng3 18. Rd1 {Hall,G-Henri,J (2337) ICCF 2007 1/2 (46)}) ( 6... c5) 7. Nc3 (7. c3 c5 (7... c6 8. Ne5 (8. a4 c5 9. b3 Nf6 10. dxc5 Qc7 11. b4 b6 12. Na3 Bd7 13. cxb6 axb6 14. Nb5 Bxb5 15. Bxb5 Rfc8 16. Ne5 e6 17. c4 dxc4 18. Ra3 Nf5 19. Nxc4 Ne4 {Malnar,A (2350)-Szymanski,R (2385) ICCF 2013 1/ 2 (33)}) 8... Nxe5 9. fxe5 f6 10. exf6 exf6 11. c4 dxc4 12. Bxc4+ Kh8 13. Qf3 f5 14. Qg3 g5 15. Kh1 f4 16. exf4 Qxd4 17. Na3 b5 18. Be2 gxf4 19. Rxf4 { Brundisch,V (2141)-Brugger,A (2119) ICCF 2007 0-1 (25)}) 8. Ne5 (8. Na3 b6 9. Bd3 Bb7 10. Qe2 a6 11. b3 b5 12. Bb2 Qb6 13. Nb1 f6 14. c4 e5 15. dxe5 fxe5 16. fxe5 Ng4 17. Nbd2 Ndxe5 18. Nxe5 Nxe5 19. cxd5 Bxd5 {Engelhardt,G (2363) -Bobykin,K (2338) ICCF 2011 1/2 (38)}) (8. a4 Nf5 9. Na3 b6 10. Bd2 Nf6 11. b3 Bb7 12. Bd3 Ne4 13. Qe2 a6 14. Ng5 Nxd2 15. Qxd2 Nd6 16. h4 Qd7 17. h5 f6 18. Nf3 gxh5 19. Qc2 Kh8 {Pisani,C (2139)-Khokhlov,I (2352) ICCF 2016 0-1 (48)}) 8... b6 (8... Nxe5 9. fxe5 Qc7 10. Nd2 b6 11. Nf3 Bb7 12. Bd2 f6 13. exf6 exf6 14. Bd3 c4 15. Bc2 Rae8 16. Qe2 Bc8 17. Rae1 Bf5 18. Bxf5 Nxf5 19. Qf2 Re4 20. Re2 {Gultom,P-Idrees Arif,M (2230) ICCF 2017 0-1 (46)}) 9. Bf3 Bb7 10. c4 cxd4 11. exd4 Rc8 12. Nc3 Nxe5 13. dxe5 Rxc4 14. Bxd5 Bxd5 15. Qxd5 Qc8 16. Be3 Nf5 17. Rae1 Rd8 18. Qb5 e6 {Brundisch,V (2141)-Maître,F ICCF 2007 0-1 (30)}) 7... Nf6 8. Ne5 c6 (8... Nf5 9. g4 Nd6 10. Bf3 c6 11. h3 Nfe4 12. Nxe4 dxe4 13. Be2 f6 14. Nc4 Be6 15. Nxd6 Qxd6 16. b3 f5 17. g5 Rfd8 18. c4 c5 19. Ba3 b6 20. dxc5 {Clarke,P-Wheeler,J ICCF 2013 0-1 (30)}) 9. a4 (9. b3 Nf5 10. Bd3 Nd6 11. a4 Qa5 12. Qe1 Bf5 13. Ba3 Qc7 14. Bxd6 exd6 15. Bxf5 gxf5 16. Nf3 Rae8 17. Rd1 Qd7 18. Rd3 h6 19. Ne2 Kh7 20. Ng3 Ne4 {Rhodes,J (2402)-Mukherjee,A (2487) ICCF 2007 1-0 (67)}) 9... Nf5 10. b3 a5 11. Bd3 Nd6 12. Bb2 Bf5 13. g4 Bxd3 14. cxd3 Nfe8 15. Nf3 Qd7 {Lilleeng,A (2134)-Ward,B (2181) ICCF 2010 1/2 (46)}) (4. Bd3 c5 5. c3 (5. c4 e6 6. O-O Ne7 7. Nc3 Nbc6 8. b3 d4 9. Ne4 dxe3 10. Rb1 Qxd3 11. Nc3 Bxc3 12. Re1 Qxb1 13. dxc3 O-O 14. Rxe3 Rd8 15. Nd2 b6 16. Re1 Qd3 { Nelson,J (1590)-Rozo,R ICCF 2016 0-1 (32)}) 5... Nc6 6. O-O Nf6 7. Bc2 d4 8. Ba4 O-O 9. d3 Nd5 10. Bxc6 bxc6 11. Qe2 dxe3 12. Bxe3 Bf5 13. Nbd2 Nxe3 14. Qxe3 Bxd3 15. Rf2 Rb8 {Bruce,R (1941)-Hansen,N (1966) ICCF 2019 0-1 (56)}) (4. Nc3 c5 5. Ne2 (5. Bb5+ Bd7 6. Qe2 Nf6 (6... a6 7. Bxd7+ Qxd7 8. e4 d4 9. Nd1 Nc6 10. d3 Nh6 11. Nf2 f6 12. Bd2 Nf7 13. a3 e6 14. O-O-O O-O-O 15. g4 e5 16. Kb1 exf4 {Arnold,G (2304)-Popov,A (2377) ICCF 2009 1/2 (33)}) 7. Bxd7+ Qxd7 8. Qb5 Qxb5 9. Nxb5 Na6 10. d3 Nd7 11. e4 O-O 12. Ke2 dxe4 13. dxe4 Nb4 14. c3 Nc6 15. Rd1 Rfd8 16. e5 Nb6 {Roynet,S (1941)-Stapinski,R (1731) ICCF 2020 1-0 (33)} ) 5... Bg4 6. Ng3 Nf6 7. Bb5+ Nc6 8. O-O O-O 9. Bxc6 bxc6 10. d3 Rb8 11. Qe1 Nd7 12. Rb1 e5 13. fxe5 Nxe5 14. Nxe5 Bxe5 15. b3 Re8 {Walsh,H (1741)-Fox,J (1647) ICCF 2014 1/2 (49)}) (4. c3 c6 (4... Bf5 5. d4 Nf6 6. Na3 (6. Be2 Nbd7 7. Ne5 h5 8. Nd2 c5 9. O-O Rc8 10. Qb3 Qc7 11. Bf3 e6 12. h3 a5 13. a4 O-O 14. Qd1 Rfd8 15. g4 hxg4 16. hxg4 Be4 17. Nxe4 Nxe4 {Nitschke,N (2111)-Kolanek,R (2260) ICCF 2019 1/2}) 6... O-O 7. Nc2 Nbd7 8. Be2 Ne4 9. O-O c5 10. dxc5 Ndxc5 11. Nfd4 Bd7 12. Nb3 Nxb3 13. axb3 e6 14. Nd4 a5 15. Bd3 Nc5 16. Bc2 { Pregitzer,G-Rokopanos,N ICCF 2016 0-1 (31)}) 5. d4 Nf6 6. Bd3 Bg4 (6... Bf5 7. Bxf5 gxf5 8. O-O Nbd7 9. Nbd2 Rg8 10. Nb3 Ne4 11. Nbd2 Ndf6 12. Ne5 e6 13. Ndf3 Nd6 14. b4 Nfe4 15. Bb2 f6 16. Nd3 Nc4 17. Qe2 Bf8 18. Nc5 {Brown,F (1920)-Mai, W (2020) ICCF 2013 0-1 (49)}) 7. Qc2 Bxf3 8. gxf3 e6 9. Nd2 Nbd7 10. Nf1 c5 11. Bd2 Rc8 12. Ng3 cxd4 13. exd4 Qc7 14. a3 Bf8 15. Rc1 Bd6 {Brown,F (1907)-Knol, E (2208) ICCF 2012 0-1 (37)}) (4. Bb5+ Nd7 5. d4 Nh6 6. O-O a6 7. Bd3 c5 8. Nc3 e6 9. a4 b6 10. e4 O-O 11. e5 f6 12. h3 Bb7 13. Re1 cxd4 14. Nxd4 Nc5 15. b4 fxe5 {Straka,J (2170)-Murin,P (2317) ICCF 2013 0-1 (39)}) 4... Nf6 (4... d4 5. Nxd4 Bxd4 6. exd4 Qxd4 7. d3 (7. Nc3 Na6 8. Qf3 Nf6 9. a3 O-O 10. Nb5 Qb6 11. d4 c6 12. c5 Qa5+ 13. Bd2 Qd8 14. Nc3 Nc7 15. Be3 Bg4 16. Qg3 Qd7 17. Bc4 Be6 18. Be2 Bg4 {Arnold,G (2406)-Nielsen,P (2311) ICCF 2005 1/2 (47)}) 7... Nc6 8. Nc3 (8. Qe2 Nh6 9. Be3 Qd6 10. Nc3 Bg4 11. Qf2 Nb4 12. h3 O-O-O 13. d4 Nf5 14. Rc1 Nxe3 15. Qxe3 Bf5 16. g4 Nc2+ 17. Rxc2 Bxc2 18. Rh2 Qxd4 19. Qxd4 Rxd4 { Andreassen,E (2180)-Moreira,J (2404) ICCF 2009 1/2 (60)}) 8... Nf6 9. h3 (9. Nb5 Qd8 10. Be3 O-O (10... a6 11. Nc3 Nd4 12. Nd5 Nf5 13. Nxf6+ exf6 14. Bc5 b6 15. Qf3 Rb8 16. Qc6+ Bd7 17. Qe4+ Be6 18. g4 bxc5 19. gxf5 gxf5 20. Qc6+ Bd7 21. Qxc5 Rxb2 22. O-O-O {Arnold,G (2406)-Harabor,M (2378) ICCF 2005 1/2 (26)}) 11. d4 Bg4 12. Qd2 Ne4 13. Qc2 Nd6 14. Qc3 Ne4 15. Qc1 e5 16. dxe5 Nb4 17. Nc3 Nd3+ 18. Bxd3 Qxd3 19. h3 Nxc3 20. Qd2 Rfd8 {Puertas Covarrubias,F (1975)-De la Peña Balbuena,I (2067) ICCF 2009 0-1 (43)}) 9... O-O 10. Qe2 Qb6 11. Be3 Nd4 12. Bxd4 Qxd4 13. Qe5 Qxe5+ 14. fxe5 Nd7 15. O-O-O Nxe5 16. d4 {Roynet,S (2158) -Relyea,A (2330) ICCF 2018 1/2 (36)}) 5. d4 (5. cxd5 Nxd5 6. Nc3 (6. d4 O-O 7. e4 Nb6 (7... Nf6 8. Nc3 c5 {0-1 (8) Leskovec,L-Pranjic,M ICCF 2005}) 8. Nc3 (8. Be3 Bg4 (8... c5 9. Nc3 cxd4 10. Bxd4 Bg4 11. Bxg7 Kxg7 12. Be2 Nc6 13. O-O Bxf3 14. Rxf3 e5 15. Rd3 Qf6 16. Nd5 Nxd5 17. fxe5 Nxe5 18. Rxd5 Rfd8 19. Qd2 Rac8 20. Rd1 {Krüger,J (2149)-Perini,G (2150) ICCF 2011 1/2 (40)}) 9. Nbd2 Nc6 10. h3 Bc8 11. d5 Nb8 12. Qc2 c6 13. dxc6 Nxc6 14. Rd1 Be6 15. Nb3 Qc8 16. Rc1 Rd8 17. Bb5 Nb4 18. Qe2 Qb8 19. Nfd4 Nxa2 {Harangus,E (1981)-Rihtaric,I (2007) ICCF 2008 0-1 (54)}) (8. Be2 Nc6 (8... c5 9. dxc5 Qxd1+ 10. Bxd1 N6d7 11. Nc3 Nxc5 12. Bc2 Nc6 13. Be3 Nb4 14. O-O-O b6 15. Rd2 Be6 16. Bxc5 bxc5 17. Bb1 Rab8 18. e5 Rfd8 19. Rhd1 Rxd2 20. Rxd2 {Fracassa,M-Tagsold,C ICCF 2015 1/2}) 9. d5 Nb8 10. Nc3 c6 11. O-O Bxc3 12. bxc3 cxd5 13. exd5 Nxd5 14. Qb3 Nc6 15. c4 Qb6+ 16. Qxb6 Nxb6 17. Be3 Na4 18. Ne5 Nxe5 19. fxe5 Bf5 {Harangus,E (1981) -Blumbergs,I (1880) ICCF 2008 0-1 (54)}) 8... Nc6 (8... Bg4 9. Be3 e6 (9... f5 10. Qb3+ Kh8 11. e5 Bxf3 12. gxf3 c6 13. h4 h5 14. Rd1 Qd7 15. d5 Nxd5 16. Nxd5 cxd5 17. Rxd5 Qc7 18. Rg1 Kh7 19. Rd2 Qc1+ 20. Kf2 Qc7 21. Qe6 {Sonnenfeld, W-Woodhouse,S (1727) ICCF 2016 1-0 (25)}) 10. e5 Nc6 11. Be2 Ne7 12. O-O Nbd5 13. Nxd5 Nxd5 14. Qd2 c6 15. a3 Bf5 16. Rac1 a5 17. h3 a4 18. g4 Be4 19. Ng5 Nxe3 20. Qxe3 {Roynet,S (2121)-Gredescul,A (2096) ICCF 2017 1/2}) 9. Be3 Bg4 10. d5 Na5 11. h3 (11. Qc2 e6 12. O-O-O Qe7 13. Kb1 Rfd8 14. dxe6 Bxe6 15. Bd4 Nc6 16. Bxg7 Kxg7 17. Rxd8 Rxd8 18. Qc1 a6 19. h4 Bg4 20. Be2 h5 21. Qe3 Bxf3 22. Qxf3 Nd4 {Geus,A (2088)-Niewold,J (1934) ICCF 2015 1/2 (38)}) 11... Nbc4 ( 11... Bxf3 12. Qxf3 c6 13. dxc6 bxc6 14. Rd1 Qc7 15. Be2 Rfd8 16. O-O Nbc4 17. e5 Nxb2 18. Rxd8+ Rxd8 19. Qe4 Rb8 20. Rb1 e6 21. Qd4 Rd8 22. Qxa7 Qxa7 23. Bxa7 {Nicotera,A-Elisei,B (1891) ICCF 2011 1-0 (37)}) 12. hxg4 Nxe3 13. Qd3 Nxg4 14. e5 c5 15. Nh2 Nxh2 16. Rxh2 Qb6 17. O-O-O Qb4 {Fagerbekk,E (2243) -Booth,R (2188) ICCF 2014 1-0 (44)}) (6. Bb5+ Bd7 7. Bxd7+ Qxd7 8. d4 c5 9. e4 Nc7 10. dxc5 Qxd1+ 11. Kxd1 O-O 12. e5 f6 13. Nc3 Nc6 14. Be3 fxe5 15. fxe5 Rac8 16. Kc2 Nxe5 17. Nxe5 Bxe5 {Fister,B (2088)-Deforel,J (2025) ICCF 2018 0-1 (35)}) (6. Bc4 O-O 7. O-O c5 8. d3 Nb6 9. Bb3 Nc6 10. Nc3 e6 11. a3 Nd7 12. Ne4 Qc7 13. Nfg5 h6 14. Nf3 Ne7 15. d4 b6 16. dxc5 Nxc5 17. Nxc5 Qxc5 { Voglimacci,N-Bramli,P ICCF 2011 0-1 (38)}) (6. Qa4+ Qd7 7. Qxd7+ Nxd7 8. Nc3 N7f6 9. Bc4 c6 10. Nxd5 cxd5 11. Be2 Ne4 12. Ne5 Bf5 13. b3 Rc8 14. Ba3 a6 15. Bb4 f6 16. Nf3 Nc5 17. O-O Bd3 {Tatundu,A (1980)-Eijkenboom,R ICCF 2018 1/2 (35)}) 6... O-O 7. Bc4 (7. Qb3 Nb6 8. d4 Be6 9. Qc2 f5 10. h4 h5 11. a3 Qd7 12. Be2 Na6 13. O-O c6 14. Bd2 Nc7 15. Na2 a5 16. Nc1 a4 17. Nd3 Bb3 18. Qc3 Nbd5 { Roynet,S (2058)-Knapton,G (2092) ICCF 2017 1/2 (39)}) 7... Nb6 (7... e6 8. O-O c5 9. e4 Ne7 10. e5 Nbc6 11. b3 b6 12. Ne4 Nd4 13. Bb2 Bb7 14. Bxd4 Bxe4 15. Bf2 Qd7 16. Re1 Qc6 17. Bb5 Qxb5 18. Rxe4 Qd7 19. a3 {Roynet,S (2121)-Roth Jr., P (1786) ICCF 2017 1/2 (59)}) 8. Be2 c5 9. O-O Nc6 (9... N8d7 10. a4 a5 11. d3 Nb8 12. Ne4 Na6 13. Ne5 Nd5 14. Bd2 Nab4 15. Nxc5 Nxf4 16. Rxf4 Bxe5 17. Rc4 b6 18. d4 Bg7 19. Bxb4 axb4 20. Nd3 Ba6 21. Rxb4 {Straka,J (2170)-Mergard,H (2205) ICCF 2013 0-1 (51)}) 10. d3 (10. b3 Nb4 11. Ba3 Bf5 12. e4 Bg4 (12... Bd7 13. Bb2 (13. Rc1 Bc6 14. e5 a5 15. d4 Bxf3 16. Bxf3 cxd4 17. Nb5 d3 18. Qd2 N6d5 19. Kh1 Bh6 20. g3 Qb6 21. Bxb4 Nxb4 22. Nc3 {1-0 (22) Roynet,S (2121)-Erlats, J (2129) ICCF 2017}) 13... Bg4 14. h3 Bxf3 15. Rxf3 e6 16. Kh1 Qe7 17. e5 f6 18. exf6 Bxf6 19. Ba3 a6 20. Rc1 Bd4 21. Bxb4 cxb4 22. Ne4 Bb2 23. Rb1 Bg7 24. Qg1 {Roynet,S (2158)-Denton,S (2220) ICCF 2018 1/2 (33)}) 13. Rc1 (13. Kh1 Rc8 14. h3 Bxf3 15. Rxf3 Qd7 16. Rc1 Rfd8 17. Qf1 a5 18. e5 Qxd2 19. Ne4 Qxa2 20. Ra1 Qc2 21. Ng3 Rd1 22. Rxd1 c4 23. Qg1 Rc6 24. Rd8+ Bf8 {Roynet,S (2106) -Vroom,G (2085) ICCF 2018 1-0 (31)}) 13... Rc8 14. Qe1 (14. Kh1 Nd3 15. Bxd3 Qxd3 16. h3 Bxf3 17. Rxf3 Qa6 18. Bb2 Rfd8 19. Qe1 e6 20. Qf2 Bd4 21. Qh4 Nd7 22. Kh2 Bf6 23. Qf2 Bg7 24. e5 c4 25. Ne4 Qxa2 {Roynet,S (2121)-Tatarska,V (2147) ICCF 2017 1/2 (45)}) 14... Nd3 15. Bxd3 Qxd3 16. h3 Bxf3 17. Rxf3 Qa6 18. Bb2 Rfd8 19. Kh2 c4 20. e5 e6 21. Ne4 Qxa2 {Roynet,S (2121)-Sisák,R (2205) ICCF 2017 1/2 (27)}) 10... Nd5 (10... Bf5 11. e4 Be6 12. Be3 Nd4 13. Qd2 Qd7 14. Bd1 Rac8 15. Qf2 Rfd8 16. Rc1 Nxf3+ 17. Bxf3 Bd4 18. Rfe1 Bxe3 19. Rxe3 Qd4 20. f5 Bd7 21. b3 Rf8 22. h4 {Spagnoli,E (2185)-Glanville,C (2040) ICCF 2015 1-0 (41)}) (10... e5 11. e4 Be6 12. Be3 Qe7 (12... exf4 13. Bxc5 Re8 14. Bf2 Bg4 15. Kh1 Qd6 16. Ng5 Bxe2 17. Qxe2 Rad8 18. Rad1 h6 19. Nf3 g5 20. d4 Qb4 21. e5 Qc4 22. Qc2 Nb4 23. Qb1 N6d5 24. a3 {Bito,L (2000)-Pranitchi,T (2173) ICCF 2010 0-1 (50)}) 13. Qe1 (13. fxe5 Nxe5 14. Qc2 Rac8 15. Rac1 Rfd8 16. b3 Nxf3+ 17. Bxf3 c4 18. dxc4 Nxc4 19. bxc4 Rxc4 20. Bd2 Qc5+ 21. Kh1 Bxc3 22. Bxc3 Rc8 23. Qb1 Rxc3 24. Rxc3 Qxc3 {Bruce,R-Pérez López,A ICCF 2013 0-1 (52)}) 13... exf4 14. Bxf4 h6 15. Qf2 Rfd8 16. Rad1 g5 17. Be3 Nd4 18. Rc1 Rac8 19. h3 f5 20. exf5 Nxf5 21. Rfe1 Nxe3 22. Qxe3 {Spagnoli,E (2185)-Zeihen,P (2146) ICCF 2015 1/2 (42)}) 11. Bd2 e5 12. Nxd5 Qxd5 13. fxe5 Nxe5 14. Bc3 Be6 15. Qd2 Rad8 16. Rad1 Rfe8 {Spagnoli,E (2185)-Schanzenbächer,M (2123) ICCF 2015 0-1 (58)}) (5. b4 O-O 6. Bb2 c6 (6... Bg4 7. cxd5 Nxd5 8. Bxg7 Kxg7 9. Be2 Nd7 10. Qb3 c6 11. Nc3 N7f6 12. O-O Qd6 13. Nxd5 Nxd5 14. Rac1 f6 15. Nd4 Bxe2 16. Nxe2 Rfd8 17. Nd4 e5 18. fxe5 {Fagerbekk,E (2227)-Pietrocola,R (2115) ICCF 2009 1/2 (56)}) (6... Bf5 7. cxd5 Nxd5 8. Bxg7 Kxg7 9. Qb3 Qd6 10. a3 a5 11. bxa5 Nc6 12. Nc3 Nf6 13. a6 bxa6 14. d4 Rfb8 15. Qd1 Na5 16. Bd3 Rb3 17. Bxf5 Rxc3 18. Bd3 {Gonçalves,C (1918)-Sánchez,M (2352) ICCF 2006 0-1 (31)}) 7. cxd5 (7. Be2 dxc4 8. Bxc4 Nbd7 9. O-O Nb6 10. Be2 Nbd5 11. a3 a5 12. Nc3 Ne4 13. Qc1 Nexc3 14. dxc3 axb4 15. axb4 Rxa1 16. Bxa1 Qb6 17. Nd4 e5 18. fxe5 Bh6 {Gonçalves,C (1918)-Rain,R (2384) ICCF 2006 0-1 (38)}) 7... cxd5 8. Be2 a6 9. O-O Nc6 10. a3 Bf5 11. d4 Qd7 12. Nbd2 Qe6 13. Ne5 Rfc8 14. Rc1 h5 15. Nb3 Ne4 16. Bd3 Nxe5 { Fagerbekk,E (2227)-Kleiser,G (2197) ICCF 2009 1/2 (30)}) (5. Nc3 O-O (5... c5 6. cxd5 (6. Bd3 d4 7. exd4 cxd4 8. Ne4 Nxe4 9. Bxe4 O-O 10. d3 f5 11. Bd5+ e6 12. Bxe6+ Bxe6 13. O-O Na6 14. a3 Re8 15. Re1 b6 16. Ng5 Bc8 17. b4 Nc7 { Grønbech,T (1951)-Ilzig,G ICCF 2016 0-1}) 6... Nxd5 7. Qb3 Nxc3 8. dxc3 O-O 9. e4 Qc7 10. Be3 Nc6 11. Be2 b6 12. Qc2 Bh6 13. Qc1 Rd8 14. O-O Bb7 15. f5 Bg7 16. Bf4 Qd7 17. Ng5 {Arnold,G (2297)-Berza,S (2382) ICCF 2010 1-0 (35)}) 6. Qb3 (6. b3 c5 7. Bb2 d4 8. exd4 cxd4 9. Nb5 Bg4 10. h3 Bxf3 11. Qxf3 Nc6 12. Bd3 a6 13. Na3 e5 14. O-O Qa5 15. Nc2 Rfe8 16. Rfe1 e4 17. Bxe4 Nxe4 {Dagis,M-Rauduve, M ICCF 2005 0-1}) 6... dxc4 (6... e6 7. Be2 c5 8. O-O Nc6 9. Ne5 d4 10. Nxc6 bxc6 11. Na4 e5 12. Nxc5 exf4 13. Rxf4 dxe3 14. dxe3 Re8 15. e4 Bf5 16. Qd3 Qe7 17. Nb3 Rad8 18. Qe3 {Hjorth,J (2033)-Bislin-Wild,R ICCF 2016 0-1}) 7. Bxc4 Nc6 8. Ne5 Nxe5 9. fxe5 Ng4 10. d4 e6 11. O-O c5 12. Ne2 b6 13. h3 Nh6 14. e4 cxd4 15. Qg3 Bb7 16. Bg5 Qd7 {Straka,J (2170)-Allenby,E (2069) ICCF 2013 1/2 (38)}) 5... O-O 6. Nc3 c5 (6... b6 7. Be2 Nc6 8. cxd5 Nxd5 9. O-O Bf5 10. Nxd5 Qxd5 11. Bd2 a5 12. Rc1 Rac8 13. Ba6 Rb8 14. Qe2 Qd6 15. Bb5 Be4 16. Ne5 Nxe5 17. fxe5 Qd8 18. Bc6 {Fagerbekk,E (2052)-Stibal,G (2244) ICCF 2007 1-0 (39)}) (6... Nc6 7. Be2 Bf5 8. O-O e6 9. h3 dxc4 10. Bxc4 Ne4 11. g4 Nxc3 12. bxc3 Be4 13. Ng5 Na5 14. Bxe6 Bc6 15. Bb3 h6 16. Nf3 Nxb3 17. axb3 a5 18. Qc2 {Perini,G (2191)-Metelmann,K (2257) ICCF 2012 1/2 (26)}) (6... e6 7. Rb1 (7. Be2 c5 (7... b6 8. Ne5 Bb7 9. O-O c5 10. b3 Ne4 11. Bb2 f6 12. Ng4 f5 13. Nxe4 dxe4 14. Ne5 Nc6 15. dxc5 Nxe5 16. Bxe5 Bxe5 17. fxe5 bxc5 18. a3 Qc7 19. Qd6 {Arnold,G (2406)-Copar,A (2355) ICCF 2005 0-1 (60)}) 8. O-O (8. dxc5 Nbd7 9. O-O Nxc5 10. Qc2 Nfe4 11. Ne5 f6 (11... Nxc3 12. Qxc3 Nd7 13. b3 Nxe5 14. fxe5 Qg5 15. Bb2 dxc4 16. Rf4 cxb3 17. axb3 Bd7 18. h4 Qd8 19. Rd1 Rc8 20. Qd4 Bc6 21. Rxf7 Qd5 22. Rxf8+ Rxf8 23. Qxd5 {Coleby,R (1996)-Hauff,A (2158) ICCF 2010 1/2 (26)}) 12. Nd3 Nxc3 13. bxc3 Ne4 14. Ba3 Rf7 15. Nf2 f5 16. Nxe4 dxe4 17. c5 Bd7 18. Qb3 Rb8 19. Rab1 Qe8 {Arnold,G (2360)-Nicholls,M (1993) ICCF 2008 1/2 (100)}) 8... cxd4 9. exd4 dxc4 10. Bxc4 Nc6 11. Kh1 a6 12. a4 Qc7 13. Be3 Rd8 14. Ne5 b6 15. Rc1 Bb7 16. d5 Nxe5 17. fxe5 Nxd5 18. Nxd5 Bxd5 {Andreassen,E (2343) -Berthelsen,R (2154) ICCF 2005 1/2 (27)}) (7. b4 Nc6 8. Qb3 b6 9. Be2 Ne7 10. O-O dxc4 11. Qxc4 Bb7 12. Bd2 Rc8 13. Rab1 c5 14. bxc5 Bxf3 15. Bxf3 bxc5 16. Ne2 Nf5 17. Qa6 cxd4 18. Rbd1 Qb6 {Straka,J (2181)-Uberos Fernández,A (2240) ICCF 2013 0-1 (48)}) 7... c5 8. dxc5 Qe7 9. Be2 Rd8 10. O-O Nc6 11. Qa4 (11. Bd2 Qxc5 12. b4 Qe7 13. Qb3 dxc4 14. Bxc4 a6 15. a4 b6 16. Ne2 Ne4 17. Be1 Bb7 18. Nc3 Nd6 19. Bh4 Bf6 20. Bxf6 Qxf6 21. Be2 Ne7 22. Ne5 Nef5 {Sonnenfeld,W (1877)-Hohlbein,M (2030) ICCF 2017 1/2 (52)}) 11... dxc4 12. Qxc4 e5 13. fxe5 Nxe5 14. Nxe5 Qxe5 15. Qf4 Qxc5 16. Kh1 g5 17. Qc4 Qe7 18. e4 {Straka,J (2181) -Malyshev,V (2128) ICCF 2013 0-1 (33)}) 7. dxc5 Qa5 (7... Ne4 8. Bd2 (8. Nxe4 dxe4 9. Qxd8 Rxd8 10. Nd4 a5 11. Be2 Nc6 12. Nxc6 bxc6 13. Rb1 e5 (13... a4 14. Bd2 e5 15. fxe5 Bxe5 16. Bb4 h5 17. Kf2 h4 18. g3 hxg3+ 19. hxg3 Kg7 20. Kg2 Rb8 21. Ba5 Rd7 22. Rhd1 Rdb7 23. Bb6 Be6 24. Rd2 Rh8 25. Rg1 {Hanegby,A (2074) -Voveris,G (2205) ICCF 2014 0-1 (38)}) 14. fxe5 a4 15. Kf2 Be6 16. b4 axb3 17. axb3 Ra2 18. Rb2 Ra1 19. Re1 Bxe5 {Bito,L (2115)-McGinnes,B (2051) ICCF 2015 1/ 2 (50)}) 8... Nd7 (8... Na6 9. cxd5 Naxc5 10. Nxe4 Nxe4 11. Qb3 Bf5 12. Rd1 Rc8 13. Be2 Nd6 14. Rc1 Rxc1+ 15. Bxc1 Be4 16. Kf2 Qa5 17. Rd1 Rc8 18. Bd2 Qxd5 19. Qxd5 Bxd5 20. Bb4 {Fagerbekk,E (2052)-Hole,Ø ICCF 2008 1/2 (58)}) (8... Nxc5 9. cxd5 Bf5 10. Be2 Nd3+ 11. Bxd3 Bxd3 12. Qb3 Nd7 13. Na4 Ba6 14. Rc1 Rc8 15. Rxc8 Qxc8 16. Qb4 Qc4 17. Bc3 Qe2# {0-1 (17) Ricard,J-Spiegel,W (2344) ICCF 2003}) (8... e6 9. cxd5 exd5 10. Rc1 Nc6 11. Nxe4 dxe4 12. Ng5 Qe7 13. Rc4 Ne5 14. Rxe4 Bf5 15. Rb4 Nc6 16. Rc4 h6 17. Nf3 Bxb2 18. Qb3 Bg7 19. Kf2 Rfe8 20. Ra4 {Sonnenfeld,W-Hackenberg,T ICCF 2016 1/2 (61)}) 9. Rc1 Ndxc5 10. cxd5 Qb6 11. Ne5 Qxb2 12. Nxe4 (12. Be2 Bf5 13. g4 Nxd2 14. Qxd2 Qxd2+ 15. Kxd2 Ne4+ 16. Nxe4 Bxe4 17. Bf3 Bxd5 18. Bxd5 Rad8 19. e4 e6 20. Rc7 exd5 21. Rb1 dxe4+ 22. Ke2 b6 23. Rxa7 Ra8 {Arnold,G (2406)-Douglas,S ICCF 2005 1/2 (30)}) (12. Nc4 Bxc3 13. Nxb2 Bxd2+ 14. Qxd2 Nxd2 15. Rxc5 Nxf1 16. Rxf1 Bf5 17. Kf2 Rfd8 18. Kf3 b6 19. Rc3 Rxd5 20. e4 Rb5 21. Nd3 Be6 22. a3 Rc8 23. Rfc1 Rxc3 { Andreassen,E (2343)-Jonckheere,P (2333) ICCF 2005 0-1 (42)}) 12... Nxe4 13. Bd3 Nxd2 14. Qxd2 Qxd2+ 15. Kxd2 Rd8 16. e4 g5 17. g3 e6 18. Nf3 g4 19. Nh4 { Arnold,G (2360)-Mateka,P (2419) ICCF 2008 1/2 (33)}) 8. cxd5 Nxd5 (8... Qxc5 9. e4 Bg4 10. e5 Nfd7 11. h3 Bxf3 12. Qxf3 Na6 13. a3 Qb6 14. Rb1 Rfc8 15. Bb5 Qd8 16. O-O Nc7 17. Be2 a6 18. Be3 b5 19. Rbd1 Rcb8 20. Ne4 {Sonnenfeld,W (1877) -MacMillen,A (1704) ICCF 2017 1-0 (34)}) 9. Qxd5 Bxc3+ 10. bxc3 (10. Bd2 Bxd2+ (10... Rd8 11. Bxc3 Qxc3+ 12. bxc3 Rxd5 13. Be2 (13. Bc4 Rxc5 14. Ne5 Kg7 15. Bxf7 Rxe5 16. fxe5 Kxf7 17. O-O+ Kg7 18. Rab1 b6 19. Rf2 Nc6 {0-1 (19) Valencia Ciordia,J (1550)-Jones,B (2171) ICCF 2011}) 13... Rxc5 14. c4 Bg4 15. Kf2 Nd7 16. Rhd1 Nb6 17. Rab1 Be6 18. Rdc1 Rac8 19. Rb2 f6 20. Nd4 Bf7 21. Nb3 R5c7 22. Na5 {Arnold,G (2306)-Heite,H (2354) ICCF 2009 1/2 (52)}) 11. Qxd2 Qxc5 12. Rc1 Qb6 13. Qd4 (13. Bc4 Rd8 14. Qf2 Be6 15. O-O Bxc4 16. Rxc4 Nd7 17. e4 Qa6 18. Rd4 Nf6 19. e5 Ng4 20. Qd2 Rxd4 21. Qxd4 Qxa2 22. h3 Nh6 23. Qb4 Nf5 24. Qxb7 Rf8 {Arnold,G (2422)-Fateev,S (2357) ICCF 2006 0-1 (49)}) 13... Qa5+ 14. Qc3 Qb6 15. Bc4 Be6 16. Bxe6 Qxe6 17. O-O Nc6 18. a3 Rfd8 19. b4 a6 20. Ng5 Qd5 21. Rcd1 Qa2 {Arnold,G (2428)-Ward,R (2415) ICCF 2006 1/2 (27)}) (10. Kf2 Bg7 11. e4 (11. Bd2 Qc7 12. Be2 Be6 13. Qd3 Nd7 14. Qa3 Nxc5 15. Ng5 h6 16. Nxe6 Ne4+ 17. Kg1 fxe6 18. Rc1 Qb6 19. Ba5 Bxb2 20. Qd3 Qxa5 21. Qxe4 Kf7 22. Rb1 Bf6 {Fagerbekk,E (2227)-Kolodziejski,M (2202) ICCF 2009 1/2 (28)}) 11... Nc6 (11... Rd8 12. Qc4 Na6 13. Be3 Bxb2 14. Rb1 Bg7 15. Be2 Be6 16. Qb5 Qxa2 17. Rhd1 Rdb8 18. c6 Nc7 19. Qc5 b5 20. Ne5 Qa4 21. Ra1 Qxe4 22. Bf3 Qf5 23. g4 {Andreassen,E (2343)-Brobakken,G (2258) ICCF 2005 1-0}) 12. Bd2 Qc7 13. e5 Be6 14. Qe4 Rad8 15. Be3 Bd5 16. Qc2 Bxf3 17. gxf3 f6 18. exf6 Bxf6 19. Rd1 Kg7 20. Rxd8 Rxd8 21. Qe4 Qa5 {Deneuville,C (2203)-Weber,K (2287) ICCF 2010 1/2 (40)}) 10... Qxc3+ 11. Qd2 Qxa1 12. Bc4 Nd7 13. O-O Qf6 14. g4 Qc6 15. Bb2 Nf6 16. g5 Bh3 17. gxf6 Bxf1 18. Bd5 Qxc5 19. fxe7 Rfd8 20. Bxf7+ Kxf7 21. exd8=Q Rxd8 22. Qxd8 Qxe3+ 23. Kxf1 Qxf3+ 24. Ke1 Qh1+ 25. Kd2 Qxh2+ 26. Kc3 Qxf4 (26... Qg3+ 27. Kc2 Qf2+ 28. Kb3 Qe3+ 29. Bc3 Qe6+ 30. Kb2 Qe2+ 31. Bd2 Qb5+ {1/2 (31) Sonnenfeld,W-Malak,J (1867) ICCF 2016}) 27. Qd7+ Kf8 28. Qxb7 Qf6+ 29. Kc4 Qf4+ 30. Kc5 Qf5+ 31. Kd6 Qd3+ 32. Qd5 {1-0 (32) Sonnenfeld,W-Kappel,R (1734) ICCF 2016} *