[Event "?"] [Site "?"] [Date "????.??.??"] [Round "?"] [White "English Opening: 1...e5"] [Black "2 Nc3"] [Result "*"] [ECO "A21/01"] [PlyCount "54"] {[%evp 0,54,19,-18,-25,-23,7,7,39,33,33,44,42,27,44,32,40,29,31,31,29,29,22,41, 56,42,42,53,33,57,57,28,36,37,57,30,37,48,31,43,43,21,40,40,38,26,31,13,10,0,3, 24,24,16,22,18,37]} 1. c4 e5 2. Nc3 {[%csl Gc2,Gc7,Gd3,Gd6,Ge4,Ge5,Gf3,Gf6,Gg2, Gg7][%CAl Ge4d5,Gc6b7,Gc6b5,Rd5e6,Re6d7,Ge5d4,Gc3b2,Gf8b4,Gc4d5,Gc4b5]} Bb4 ( 2... d6 3. g3 (3. e3 f5 (3... g6 4. d4 Bg7 (4... exd4 5. exd4 Bg7 6. Nf3 Ne7 7. Be2 O-O 8. O-O Nbc6 9. Re1 Re8 10. Bf4 Bg4 11. d5 Bxf3 12. Bxf3 Ne5 13. Be2 Nf5 14. Bf1 c5 15. h3 a6 16. Ne4 {Severins,J (2152)-Francovig,H (2188) ICCF 2017 1-0 (58)}) 5. Be2 exd4 (5... Nc6 6. d5 Nce7 7. Nf3 f5 8. b3 Nf6 9. O-O O-O 10. Bb2 Bd7 11. a4 h6 12. Ba3 Be8 13. a5 a6 14. Nd2 e4 15. b4 Bf7 16. Nb3 c6 17. dxc6 {Sitorus,Y (2261)-Copsey,A (1983) ICCF 2016 1/2-1/2 (52)}) 6. exd4 Ne7 7. h3 Nbc6 8. Nf3 O-O 9. d5 Ne5 10. O-O Nxf3+ 11. Bxf3 Nf5 12. Re1 Qf6 13. Ne4 Qd4 14. Bd2 Qxb2 15. Rc1 {Zdziech,M (2184)-Dahm,W (2026) ICCF 2021}) 4. d4 (4. g3 Nf6 5. Bg2 Be7 6. Nge2 O-O 7. b3 c6 8. O-O Be6 9. d4 Bf7 10. f3 Nbd7 11. Bh3 Bg6 12. Qc2 Ng4 13. Qd2 Ngf6 14. Bb2 Qc7 15. Rad1 Rad8 {Lujambio,A (1934) -Jones,R ICCF 2013 1-0 (45)}) 4... Be7 (4... Nd7 5. Be2 (5. Nf3 e4 6. Nd2 Ngf6 7. Be2 Be7 8. O-O O-O 9. Qc2 Nb6 10. f3 d5 11. c5 Nbd7 12. b4 c6 13. b5 Qe8 14. Qa4 Nb8 15. Qb3 Kh8 16. Rb1 Qg6 {Zhak,B (2570)-Salvatore,C (2271) ICCF 2010 1-0 (89)}) 5... g6 6. Nh3 Bg7 7. O-O Nh6 8. dxe5 dxe5 9. f3 O-O 10. e4 c6 11. Nf2 Nc5 12. Qxd8 Rxd8 13. Bg5 Re8 14. exf5 gxf5 15. Be3 Ne6 16. Bd3 {Flatz,H (2282)-Baumgartner,M (2293) ICCF 2014 1/2-1/2 (40)}) (4... e4 5. f3 (5. Nh3 Nf6 6. Be2 (6. Nf4 c6 7. h4 g6 8. g3 Bh6 9. b3 O-O 10. Ba3 Qe7 11. Be2 Na6 12. Qd2 Rd8 13. Rd1 b6 14. d5 c5 15. Nb5 {1/2-1/2 (15) Horodyskyi,O-Bourgault,J (2027) ICCF 2019}) 6... Be7 7. b4 O-O 8. O-O Kh8 9. Qb3 c6 10. Bb2 Be6 11. Nf4 Bf7 12. d5 Nbd7 13. a4 a5 14. dxc6 bxc6 15. b5 Qb6 16. Qa2 Ne5 {Brasier,J (2357)-Cook, D (2232) ICCF 2015 1-0 (35)}) (5. g4 Nf6 6. g5 Ng8 7. h4 Ne7 8. Nh3 c6 9. Nf4 Na6 10. Bd2 Bd7 11. f3 exf3 12. Qxf3 Nc7 13. e4 fxe4 14. Nxe4 Bf5 15. Ng3 Qd7 16. Nxf5 Nxf5 {Sitorus,Y-Evans,S (1717) ICCF 2015 1-0}) (5. Nge2 Nf6 6. Bd2 c5 7. Nd5 Be7 8. Bc3 Nxd5 9. cxd5 O-O 10. Nf4 cxd4 11. Bxd4 Bf6 12. Rc1 Nd7 13. Ne6 Qa5+ 14. Qd2 Qxd2+ 15. Kxd2 {Svrsek,R (2189)-Jones,M (2207) ICCF 2012 1/ 2-1/2 (28)}) 5... Nf6 6. fxe4 fxe4 7. Nge2 c6 8. Ng3 d5 9. cxd5 cxd5 10. Nh5 Be6 11. Bb5+ Nc6 12. O-O Bf7 13. Nxf6+ gxf6 14. Qa4 Be7 15. Bxc6+ bxc6 16. Qxc6+ {Sazon,A (1963)-Castillo,G (1974) ICCF 2014 1-0 (43)}) (4... Nf6 5. Be2 ( 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. b3 (7. Nf3 Nc6 8. Bd2 Be6 9. O-O-O Ke8 10. h3 a6 11. e4 Nxe4 12. Nxe4 fxe4 13. Ng5 Bf5 14. g4 Bg6 15. Ne6 Kd7 16. Nxf8+ { Kratochvíl,J (2296)-Kesl,E (2166) ICCF 2012 0-1 (71)}) 7... b6 (7... c6 8. Bb2 Bb4 9. Nf3 Nbd7 10. a3 Bd6 11. Be2 Ke7 12. b4 Rd8 13. O-O b6 14. Rfd1 Bb7 15. h3 g6 16. Rd2 a5 17. b5 Rac8 18. Rb1 cxb5 {Zhuravlev,K (2189)-Starodubtsev,V (2236) ICCF 2017 0-1 (67)}) 8. Bb2 Bb7 9. Rd1+ Nbd7 10. Nf3 Bd6 11. Be2 Re8 12. O-O a6 13. Rd2 Kc8 14. Rfd1 Bc6 15. Ng5 Bb4 16. Rc2 h6 {Stapinski,R (1777) -Blittkowsky,R (1866) ICCF 2019 0-1 (54)}) 5... Be7 6. Nf3 e4 7. Ng5 O-O 8. O-O h6 9. Nh3 g5 10. f3 exf3 11. gxf3 Qe8 12. Nf2 Nc6 13. Kh1 Bd8 14. f4 Bd7 15. d5 Ne7 16. fxg5 {Saarikoski,K (2213)-Velker,W (2206) ICCF 2015 1-0 (29)}) 5. dxe5 (5. Bd3 Nf6 6. f3 O-O 7. Nge2 c6 (7... Nh5 8. O-O g6 9. b4 Bf6 10. Rb1 c6 11. a4 Bg7 12. Bc2 Be6 13. d5 Bc8 14. Ba3 Bh6 15. f4 {Abolins-Abols,D (2090) -Narkun,M ICCF 2017 1/2-1/2 (73)}) 8. O-O g6 (8... Be6 9. Qc2 g6 10. e4 f4 11. b3 Nbd7 12. Nd1 exd4 13. Nxd4 Qb6 14. Bb2 Nc5 15. Nf2 Nfd7 16. a4 a5 17. Nxe6 Nxe6 18. c5 Ndxc5 19. Bc4 Bf6 20. Bxf6 {Petkov,S-Gavrijski,D (2046) ICCF 2014 1-0 (49)}) 9. Qd2 Be6 10. b3 Nbd7 11. Bb2 a6 12. e4 fxe4 13. Nxe4 Nxe4 14. Bxe4 d5 15. cxd5 cxd5 16. Bd3 Bg5 {Weseman,G (2057)-Welti,M (2079) ICCF 2018 1/2-1/ 2 (34)}) 5... dxe5 6. Qxd8+ Bxd8 7. b3 (7. Be2 Be6 8. b3 Nf6 9. Nf3 Nbd7 10. Ba3 c6 11. O-O Bc7 12. Rfd1 h6 13. Rac1 Kf7 14. Rc2 g5 15. Rcd2 Rad8 16. h3 Rhg8 17. Bf1 Ba5 18. Rc2 h5 {Sánchez Portugal,E-Osorio Barahona,J (2336) ICCF 2018 0-1 (40)}) 7... Be6 8. Bb2 Nd7 9. O-O-O c6 10. Nf3 Nh6 11. Rd6 Ke7 12. Rd2 Nf7 13. Be2 Ba5 14. Rdd1 g6 {Pangaribuan,J (1793)-Blondel,F (1733) ICCF 2020 1-0 (49)}) (3. e4 c5 (3... f5 4. Nf3 (4. exf5 Bxf5 5. Qf3 (5. Nge2 Nc6 6. d4 Qe7 7. Be3 Nf6 8. d5 Nb8 9. Ng3 Bg6 10. h4 Nbd7 11. h5 Bf7 12. Nf5 Qd8 13. Be2 g6 14. hxg6 Bxg6 15. Nh4 Bg7 16. g4 Nf8 {Vaughan,J-Smail,J ICCF 2015 1-0}) 5... Qc8 6. Nd5 Ne7 7. Bd3 Bg4 8. Qe4 Bf5 9. Qf3 g6 10. Nf6+ Kd8 11. Bxf5 gxf5 12. d3 Bg7 13. Nh5 Bf8 14. Bg5 h6 15. Bh4 Nbc6 {Miller,J-Cissik,J (1500) ICCF 2012 1-0 (30)}) (4. Nge2 Nf6 5. exf5 Bxf5 6. Ng3 Be6 7. Be2 Be7 8. O-O O-O 9. d4 exd4 10. Qxd4 Nc6 11. Qe3 Bf7 12. b3 a6 13. a3 Qd7 14. Bb2 Rae8 15. Rad1 Ng4 { Bapple,E-Hobson,N (1734) ICCF 2008 1-0 (28)}) 4... Nf6 (4... fxe4 5. Nxe4 Nf6 6. Bd3 Nc6 7. O-O Be7 8. Nxf6+ Bxf6 9. Be4 O-O 10. a3 Bg4 11. h3 Bh5 12. d3 Rb8 13. Bd2 a6 14. b4 Nd4 15. g4 Nxf3+ 16. Qxf3 {Shchebenyuk,T (1989)-Sviridova,O ICCF 2011 1/2-1/2 (26)}) 5. d3 (5. Bd3 f4 6. Be2 c5 7. O-O Nc6 8. d3 Be7 9. Nd5 O-O 10. Bd2 b6 11. Rb1 a5 12. Qb3 Nb4 13. Nc3 Bd7 14. h3 Nc6 15. Nb5 Ne8 16. Nc3 Rf6 {Pereira,S (2150)-Genchev,M (2309) ICCF 2013 0-1 (81)}) 5... Be7 6. Qb3 Na6 7. exf5 Nc5 8. Qc2 Bxf5 9. Nh4 Be6 10. Be3 Ng4 11. Nf3 Nxe3 12. fxe3 O-O 13. O-O-O c6 14. Be2 b5 15. d4 {Sedstrem,A (1416)-Ryan,R (1690) ICCF 2019 0-1 (27)}) 4. d3 Nc6 (4... Be7 5. Nf3 Nc6 6. h3 f5 7. exf5 Bxf5 8. g4 Be6 9. Bg2 h6 10. a3 Qd7 11. Rb1 a5 12. Bd2 Rb8 13. O-O h5 14. Nh2 hxg4 15. hxg4 Nf6 16. f3 { Matos,V (1373)-Sazonov,N (1726) ICCF 2020 0-1}) 5. f4 g6 6. Nf3 Bg7 7. Be2 Nge7 8. Be3 Nd4 9. fxe5 dxe5 10. O-O O-O 11. a3 a5 12. Kh1 Nec6 13. Nd5 Bd7 14. Rb1 a4 {Gildred,T (2424)-Cruzado Dueñas,C (2493) ICCF 2008 0-1}) (3. d3 f5 (3... a6 4. e4 Nf6 5. h3 Nc6 6. Nf3 h6 7. Be3 Be7 8. Be2 O-O 9. O-O Nh7 10. Nd5 Nf6 11. a3 Be6 12. Nxf6+ Bxf6 13. Qc2 Qd7 14. Kh2 b6 15. b4 {Jakobi,W (1561)-Döring,J ICCF 2020 1-0 (74)}) (3... Be6 4. Nf3 Nf6 5. Bg5 Be7 6. Bxf6 Bxf6 7. g3 c6 8. Bg2 Nd7 9. O-O O-O 10. Ne4 Be7 11. a3 h6 12. b4 f5 13. Ned2 g5 14. e3 g4 15. Ne1 {Åsten,E (1725)-Jakobi,W (1767) ICCF 2015 0-1 (30)}) 4. f4 Nf6 5. Nf3 exf4 6. Bxf4 Be7 7. Nd5 Nxd5 8. cxd5 O-O 9. Rc1 Nd7 10. Qc2 Nf6 11. e4 fxe4 12. dxe4 Nh5 13. Be3 {1-0 (13) McLaughlin,E (1633)-Stetson,M ICCF 2016}) (3. Nf3 Bf5 ( 3... Be6 4. d4 Nd7 5. e3 exd4 6. exd4 Qe7 7. Be3 O-O-O 8. Bd3 h6 9. h3 g5 10. d5 Bg7 11. dxe6 Bxc3+ 12. bxc3 fxe6 13. Bxa7 b6 14. a4 Qf6 15. O-O {Alfaro de Hombre,J (2197)-Pereyra,D (1895) ICCF 2016 1-0}) (3... c5 4. e3 f5 5. d3 Be7 6. Be2 Nf6 7. O-O O-O 8. a3 Nc6 9. b4 cxb4 10. axb4 Nxb4 11. Qb3 Nc6 12. Rd1 Kh8 13. Ba3 b6 14. d4 e4 15. Nd2 {Voveris,G (2133)-Kireev,V (2101) ICCF 2011 1/2-1/ 2 (72)}) (3... g6 4. d4 (4. b4 Bg7 5. e3 f5 6. d4 e4 7. Nd2 Nf6 8. c5 d5 9. Qa4+ c6 10. b5 O-O 11. f4 exf3 12. Nxf3 Ne4 13. Nxe4 fxe4 14. Ne5 Bxe5 15. dxe5 Qh4+ {Oldner,S-Heise,S (2458) ICCF 2008 0-1}) 4... exd4 5. Qxd4 Nf6 6. Bg5 Bg7 7. Qe3+ Be6 8. Nd4 Qe7 9. Qf3 c6 10. Ne4 Nbd7 11. Qf4 O-O 12. Qxd6 Qe8 13. Nxe6 Nxe4 14. Nxg7 Kxg7 15. Qd4+ {Kutlu,T-Parente,A (1564) ICCF 2011 1-0 (36)}) ( 3... Bg4 4. Qb3 Qc8 5. e3 Nf6 6. Be2 e4 7. Nd4 Bxe2 8. Ncxe2 Nbd7 9. O-O Nc5 10. Qc2 c6 11. b3 Nd3 12. Ba3 c5 13. Nf5 Qxf5 14. Ng3 Qg6 15. Rab1 {Sumny, M-Schilleci,C ICCF 2019 0-1 (29)}) (3... Nf6 4. e3 c6 5. d4 e4 6. Nd2 d5 7. Qb3 a6 8. a4 a5 9. Be2 Bb4 10. O-O O-O 11. f3 exf3 12. Nxf3 Re8 13. cxd5 cxd5 14. Ng5 h6 15. Nxf7 {Cardoso García,S (1842)-Muñoz Osorio,J (2152) ICCF 2009 1-0 (70)}) (3... f5 4. g3 (4. d4 e4 5. Ng5 (5. Nd2 Nf6 6. e3 c6 (6... g6 7. Be2 Bg7 8. b4 O-O 9. O-O Be6 10. a4 (10. Bb2 Nbd7 11. Nb3 Bf7 12. Qd2 Qe7 13. Na5 Rab8 14. b5 h5 15. Ba3 Rfe8 16. Qc2 g5 17. h3 Bh6 18. Rae1 Kh7 19. Bc1 Rg8 20. f3 g4 21. hxg4 hxg4 {Mironchik,A (1856)-Astroukh,V ICCF 2017 0-1 (32)}) 10... c6 11. a5 (11. Ba3 Nbd7 12. a5 Bf7 13. Qc2 Re8 14. Nb3 Rc8 15. b5 c5 16. Rfd1 Qe7 17. Rab1 h5 18. h3 Bh6 19. Bf1 f4 20. Bc1 fxe3 21. Bxe3 Bxe3 22. fxe3 cxd4 { Tleptsok,R (2527)-Williamson,H (2529) ICCF 2018 1/2-1/2 (38)}) 11... Nbd7 12. Qc2 Rc8 13. Ba3 d5 14. b5 c5 15. Nb3 cxd4 16. Nxd4 Re8 17. Nxe6 Rxe6 18. Rfd1 { Bouillod,Y-Gilbert,R (1664) ICCF 2014 1-0 (29)}) 7. Be2 Be7 8. f3 exf3 9. Bxf3 O-O 10. O-O Na6 11. e4 Qb6 12. Nb3 fxe4 13. Nxe4 Be6 14. Qe2 Rae8 15. Bd2 Nb4 16. Ng5 Bd7 {Savu,I-Markic,V (2021) ICCF 2005 1/2-1/2 (26)}) (5. Ng1 Be7 (5... Nf6 6. Bf4 (6. Bg5 Be7 7. e3 O-O 8. Nh3 Be6 (8... h6 9. Bxf6 Bxf6 10. Nf4 Bg5 11. Be2 (11. g3 Bxf4 12. gxf4 Nd7 13. Rg1 Nf6 14. f3 c6 15. fxe4 fxe4 16. Qd2 d5 17. O-O-O Rf7 18. Kb1 Bd7 19. Be2 Kh8 20. Rc1 Rc8 21. c5 Qa5 22. a3 Bf5 { Laghetti,G (2496)-Pasta,P (2164) ICCF 2018 1/2-1/2 (58)}) 11... Bxf4 12. exf4 Nd7 (12... c6 13. d5 c5 14. Qd2 Nd7 15. h4 Qe7 16. Kf1 Nf6 17. Kg1 a6 18. a4 Bd7 19. Rh3 Rab8 20. h5 Be8 21. Nd1 Qc7 22. Ne3 Bd7 23. Rg3 Kh7 24. Rc1 { Collobiano,A (2150)-Bonoldi,F (1949) ICCF 2012 1/2-1/2 (26)}) 13. O-O Nf6 14. f3 c6 15. fxe4 Nxe4 16. Bf3 Be6 17. Nxe4 fxe4 18. Bxe4 {Musso,G (2333)-Frangi, M (2304) ICCF 2011 1/2-1/2 (49)}) (8... c5 9. dxc5 dxc5 10. Qxd8 Bxd8 11. O-O-O Nc6 12. Bf4 Ne8 13. f3 Nf6 14. Rg1 a5 15. Bd6 Be7 16. Bxe7 Nxe7 17. Nf4 a4 18. Nfd5 Nexd5 19. Nxd5 a3 20. b3 {Sylvester,G-Lund,S ICCF 2009 1/2-1/2 (40)}) 9. Nf4 Bf7 10. Bxf6 (10. h3 h6 11. Bxf6 Bxf6 12. g4 Bg5 13. Nfe2 fxg4 14. Ng3 gxh3 15. Ngxe4 Qe7 16. Rxh3 Na6 17. Qe2 Rae8 18. O-O-O Bf6 19. f4 c6 20. Qg2 { Jacobs,R (2350)-Parente,A (1605) ICCF 2011 1-0 (50)}) 10... Bxf6 11. g4 c5 12. dxc5 Nc6 13. Rc1 Bxc3+ 14. Rxc3 g5 15. Nd5 Ne5 16. Be2 dxc5 17. gxf5 b6 { Westin,Å-Lundberg,C ICCF 2015 1/2-1/2 (36)}) 6... Nc6 7. e3 Ne7 8. Bg5 Ng6 9. h4 Be7 10. h5 Nf8 11. h6 g6 12. Bxf6 Bxf6 13. g4 fxg4 14. Nxe4 Be7 15. Be2 Qd7 16. d5 Qf5 17. Qd4 {Schneider,D-Taylor,B (2041) ICCF 2006 1-0 (37)}) 6. Bf4 c6 (6... Be6 7. e3 Nf6 8. Nge2 O-O 9. d5 Bd7 10. h3 Qe8 11. Nd4 Nh5 12. Bh2 Qg6 13. Ne6 Bxe6 14. dxe6 Na6 15. Nd5 Rae8 16. Qd2 Qxe6 17. c5 Nf6 18. Nxe7+ { Zerbinati,M (2318)-Alfaro de Hombre,J (2340) ICCF 2020 1/2-1/2 (38)}) 7. e3 Nf6 8. h4 (8. Be2 Be6 9. Nh3 Na6 10. O-O Nc7 11. Qb3 b5 12. Ng5 Bg8 13. f3 h6 14. Nh3 exf3 15. Bxf3 Qd7 16. Be2 Bf7 17. Bd3 bxc4 18. Bxc4 O-O 19. Bg3 Rae8 { Hjorth,J (2033)-Zeihen,P (2252) ICCF 2016 0-1 (33)}) 8... Be6 9. Bg3 O-O 10. Nh3 h6 11. Nf4 (11. Be2 Bf7 12. Nf4 a6 13. a3 (13. O-O d5 14. cxd5 cxd5 15. Rc1 Nc6 16. h5 Bd6 17. Na4 Qe7 18. Qb3 Kh8 19. Qd1 Kh7 20. a3 Rfd8 21. b4 Ra7 22. Nc5 Rc8 23. a4 Kh8 24. Rc3 Rca8 {Cardoso García,S (2333)-Wydornik,R (2240) ICCF 2019 1-0 (60)}) 13... Nbd7 14. Rc1 Rc8 15. h5 Kh7 16. a4 a5 17. O-O Qe8 { Pundak,M (2358)-Mehlhorn,U (2376) ICCF 2019 1/2-1/2 (46)}) 11... Bf7 12. h5 Nbd7 13. Be2 Re8 14. O-O Nf8 15. d5 N6d7 16. Rb1 a6 {Glatthaar,M (2449) -Konstantinov,M (2441) ICCF 2019 0-1 (44)}) (5. Bg5 Be7 6. Bxe7 Qxe7 7. Nd5 Qd8 8. Nd2 c6 9. Nf4 Nf6 10. e3 O-O 11. Qb3 Qe7 12. c5+ d5 13. h4 Nbd7 14. Qc3 Rf7 15. Be2 Ng4 16. f3 Nh6 {Harding,T (2372)-Taylor,B (1952) ICCF 2009 1-0 (42)}) 5... Be7 (5... c6 6. Nh3 (6. Bf4 h6 7. Nh3 g5 8. Bd2 d5 9. e3 Nf6 10. Qc2 Be6 11. Be2 Bb4 12. a3 Bxc3 13. Bxc3 dxc4 14. O-O f4 15. exf4 g4 16. d5 cxd5 17. f5 Bxf5 {Coleman,L-Wright,D (1618) ICCF 2015 1/2-1/2 (31)}) (6. d5 Be7 7. Nh3 h6 8. Nf4 Nf6 9. Ng6 Rg8 10. Bf4 Kf7 11. Nxe7 Kxe7 12. dxc6 bxc6 13. Qd2 g5 14. Be3 c5 15. f3 f4 16. Nd5+ Kf7 17. Nxf6 fxe3 {Hunt,A-Wright,D (1618) ICCF 2014 0-1}) 6... Na6 7. f3 (7. g3 Nf6 8. Bg2 Nc7 9. O-O Be6 10. f3 exf3 11. Rxf3 Be7 12. Ng5 Bxc4 13. Rxf5 h6 14. b3 Bg8 15. Nh3 Bh7 16. Rf1 d5 17. Nf4 {Goldenberg, R (2590)-Berry,F (2575) ICCF 1989 0-1 (28)}) (7. Bf4 Nf6 8. e3 h6 9. Bg3 g5 10. Be2 Be7 11. d5 cxd5 12. Nxd5 Qa5+ 13. Nc3 Be6 14. a3 Qb6 15. b4 Nc7 16. O-O O-O 17. Rc1 Rfd8 18. Na4 Qc6 {Cardoso García,S (2161)-Santos Etxepare,A (2287) ICCF 2010 1/2-1/2 (35)}) 7... Nf6 8. Bg5 Be7 9. e3 O-O 10. Qd2 Nc7 11. Be2 d5 12. O-O Be6 13. fxe4 fxe4 14. Nf4 Bf7 15. Bxf6 Bxf6 16. cxd5 cxd5 17. Qd1 { Jína,J (2113)-De Luca,S (2158) ICCF 2006 1/2-1/2 (25)}) (5... Nf6 6. e3 (6. g3 c6 7. Bg2 Be7 8. d5 O-O 9. O-O Ng4 10. Nh3 Na6 11. f3 exf3 12. exf3 Ne5 13. Qe2 Re8 14. Nf2 Bf6 15. Be3 c5 16. Rfe1 Bd7 17. f4 Nf7 {Dolinski,P (2378)-Hýbl,V (2352) ICCF 2007 1/2-1/2}) (6. Nh3 c6 7. Bg5 h6 8. Bxf6 Qxf6 9. e3 Be7 10. Qb3 g5 11. O-O-O Nd7 12. Ng1 Nb6 13. Be2 O-O 14. h4 g4 15. a4 Rb8 16. Bf1 Be6 17. d5 cxd5 {Laine,J (1878)-Fagerström,M (2091) ICCF 2010 0-1 (32)}) 6... h6 7. Nh3 g5 8. Be2 (8. Ng1 Bg7 9. h4 Ke7 10. hxg5 hxg5 11. Rxh8 Qxh8 12. Nh3 Bh6 13. Nd5+ Nxd5 14. cxd5 g4 15. Ng1 b6 16. Qc2 Qd8 17. Bd2 Bb7 18. Rc1 c5 19. dxc6 Bxc6 {Whitehouse,G-Cook,D ICCF 2011 1/2-1/2}) 8... Bg7 9. Bh5+ Nxh5 10. Qxh5+ Kf8 11. b3 c5 12. Bb2 cxd4 13. exd4 Nc6 14. O-O-O Bd7 15. Qg6 Kg8 16. Qxd6 Kh7 17. f3 {Nigrin,J (2159)-Binas,J (2153) ICCF 2014 1-0 (26)}) (5... h6 6. Nh3 g5 7. Ng1 Nf6 8. h4 g4 9. e3 g3 10. fxg3 Nbd7 11. Nh3 Rg8 12. Nf4 Nb6 13. Rh3 Qe7 14. Be2 Be6 15. a4 a5 16. Qb3 Bf7 17. Qb5+ {Indricans,O-Beltins,G ICCF 2005 0-1 (27)}) 6. Nh3 (6. Nd5 c6 (6... Nf6 7. Nf4 c6 8. e3 d5 9. Bd2 Bd6 10. Ngh3 Na6 11. Be2 Nc7 12. Qb3 O-O 13. O-O b6 14. Rfc1 Qd7 15. Rc2 Kh8 16. Bb4 c5 17. dxc5 bxc5 18. Ba3 {Novák,M (1987)-Kostanjsek,Z (2187) ICCF 2010 0-1 (51)}) 7. Nxe7 Qxe7 8. Nh3 (8. g3 Nf6 9. Bg2 h6 10. Nh3 Be6 11. Nf4 Bf7 12. h4 Na6 13. Qc2 Nc7 14. Qa4 a5 15. Be3 Ng4 16. d5 Nxe3 17. fxe3 O-O 18. dxc6 bxc6 19. Qxc6 Rfb8 {Lagergren,H (2133)-Tarmak,M (1875) ICCF 2010 0-1 (49)}) 8... Nf6 9. Qb3 ( 9. e3 O-O 10. Be2 Na6 11. Bd2 Nc7 12. O-O Be6 13. Nf4 Bf7 14. Rc1 g5 15. Nh3 h6 16. Re1 Qd7 17. f3 exf3 18. gxf3 Rae8 19. Nf2 Bh5 20. Qc2 Re7 {Deneuville,C (2250)-Jensen,K (2211) ICCF 2009 1/2-1/2}) 9... Nbd7 10. Bd2 d5 11. e3 dxc4 12. Bxc4 Nb6 13. Bb4 Qd7 14. Be2 Nbd5 15. Bd2 Qd6 16. a4 Rb8 17. O-O Be6 {Bonay Toscas,S (2202)-Varela Mourín,J (2259) ICCF 2011 1/2-1/2 (28)}) 6... Nf6 (6... c6 7. g3 (7. e3 Be6 8. Be2 Nf6 9. O-O Na6 10. d5 Bd7 11. b3 O-O 12. Bb2 c5 13. Nf4 Kh8 14. f3 exf3 15. Bxf3 Ng8 16. Ne6 Bxe6 17. dxe6 Rb8 18. Bd5 Nc7 { Beck,G (2061)-Blondel,F (2027) ICCF 2014 1/2-1/2 (25)}) (7. Bf4 g5 (7... Nf6 8. e3 O-O 9. Bg3 Ng4 10. Be2 Na6 11. Qb3 Nc7 12. Nf4 Rf7 13. O-O Nf6 14. h3 g5 15. Nh5 Nxh5 16. Bxh5 Rf6 17. Rac1 Ne6 18. Bd1 Rh6 19. Qc2 {Molzahn,N (2325)-Díaz Castañet,J (2135) ICCF 2012 1-0 (49)}) (7... h6 8. Bg3 g5 9. e3 Nf6 10. Ng1 Qb6 11. Qd2 Be6 12. h4 Rg8 13. hxg5 hxg5 14. b4 a5 15. b5 c5 16. dxc5 dxc5 17. Qc2 Bd6 18. Nge2 Bxg3 19. Nxg3 {Stock,G (2036)-Recasens Sánchez,J (2000) ICCF 2008 1/2-1/2 (58)}) 8. Bd2 h6 9. e3 (9. f3 d5 10. Nf2 Nf6 11. e3 O-O (11... exf3 12. Qxf3 Be6 13. Bd3 Qd7 14. b3 O-O 15. cxd5 cxd5 16. h4 g4 17. Qf4 Rf7 18. Bb5 Nc6 19. Na4 Bd6 20. Qxh6 g3 21. Qg6+ Rg7 22. Qxf6 gxf2+ 23. Kf1 {Quirk,M (1968) -Belanoff,S (2214) ICCF 2017 0-1 (34)}) 12. Qb3 Qb6 13. Qc2 Be6 14. g4 exf3 15. h4 Ne4 16. gxf5 Bxf5 17. Ncxe4 dxe4 18. O-O-O c5 19. Bh3 Bxh3 20. Rxh3 Qg6 { Eliseev,V (2209)-Mishin,A (2308) ICCF 2015 1/2-1/2 (57)}) (9. Qc2 Nf6 10. O-O-O d5 11. f3 Be6 {1/2-1/2 (11) Thode,G-Zaugg,B ICCF 2013}) 9... Nf6 10. f3 a6 11. fxe4 fxe4 12. Nf2 d5 13. Qb3 b5 14. cxd5 cxd5 15. Rc1 Bb7 16. Be2 Nc6 17. Ncxe4 dxe4 18. Nxe4 Nxe4 {Walczak,P-Egan,M (2039) ICCF 2006 1-0 (26)}) 7... Nf6 8. Bg2 (8. Nf4 O-O 9. h4 Na6 10. d5 (10. Bh3 d5 11. cxd5 cxd5 12. Qb3 Nc7 13. a4 b6 14. O-O g6 15. Bd2 Qd7 16. Rfc1 Ba6 17. a5 Rfb8 18. axb6 axb6 19. Bf1 Kh8 { Abolins-Abols,D (2090)-Starmans,M ICCF 2017 1-0 (50)}) 10... Qe8 11. b3 Ng4 12. e3 c5 13. Bb2 Bf6 14. Be2 b6 15. Bxg4 fxg4 16. a3 Qe7 17. h5 Bf5 18. Qc2 Nb8 19. h6 g6 {Satici,A (2287)-Zaas,P (2349) ICCF 2019 0-1 (31)}) (8. Bg5 Be6 9. Qb3 Qb6 10. Nf4 Bf7 11. Bh3 g6 12. g4 fxg4 13. Bxf6 Bxf6 14. Bxg4 Bxd4 15. O-O-O Be5 16. e3 Qxb3 17. axb3 a5 18. Nxe4 Ke7 19. Nd3 Bg7 {Boreika,V (2275) -Boschma,B (2383) ICCF 2011 1/2-1/2}) (8. d5 Nbd7 9. Bg2 Nb6 10. Qb3 Nfd7 11. O-O Ne5 12. dxc6 bxc6 13. c5 dxc5 14. Rd1 Qc7 15. Bf4 c4 16. Qc2 O-O 17. Rac1 Rb8 18. Be3 Be6 19. Nf4 Bf7 {Bedevia Rodríguez,F (2293)-Díaz Castañet,J (2273) ICCF 2008 0-1 (76)}) 8... Nbd7 (8... d5 9. Qb3 dxc4 10. Qxc4 b5 11. Qb3 b4 12. Na4 Qxd4 13. Nf4 Qe5 14. h4 Na6 15. O-O Qb5 16. Rd1 Bd7 17. e3 c5 18. Bf1 Qxa4 19. Qxa4 Bxa4 20. b3 {Semmelroth,H (2349)-Debevec,B (2324) ICCF 2010 1-0 (29)}) 9. O-O (9. f3 Nb6 10. b3 d5 11. c5 Nbd7 12. O-O Nf8 13. b4 Ne6 14. Nf4 O-O ( 14... b6 15. Rb1 O-O 16. Nxe6 Bxe6 17. Bf4 Qd7 18. Be5 Bf7 19. Qb3 Qe6 20. Qc2 Nd7 21. Bf4 g5 22. fxe4 gxf4 23. exd5 Qe3+ 24. Kh1 fxg3 25. Qxf5 Qxc3 26. Qxd7 {Eldridge,M (2176)-Ballard,D (2045) ICCF 2008 1-0 (54)}) 15. Nxe6 Bxe6 16. Bf4 b6 17. Qd2 Qe8 18. a4 Qg6 19. a5 Nh5 20. axb6 Nxf4 {González Barcina,F (1994) -García Ramírez,C ICCF 2009 1/2-1/2 (46)}) 9... O-O (9... Nb6 10. b3 d5 11. c5 Nbd7 12. b4 Nf8 13. b5 Ne6 14. bxc6 (14. a4 O-O 15. Nf4 Nc7 16. f3 g5 17. Nh3 h6 18. Qb3 Ne6 19. Be3 Qc7 20. fxe4 fxe4 21. Nf2 Rf7 22. a5 Bf8 23. a6 bxa6 24. bxc6 Rb8 25. Qa2 Qd8 {De la Calle,I (2302)-Tarmak,M (1836) ICCF 2006 1-0 (26)}) 14... bxc6 15. Qa4 Bd7 (15... Qd7 16. Nf4 Nc7 17. f3 (17. h4 O-O 18. Bd2 Ba6 19. Rfb1 Rfb8 20. Rb3 g6 21. Rab1 Rxb3 22. Rxb3 Bc4 23. Rb7 a6 24. f3 exf3 25. Bxf3 Re8 26. Ng2 Bd8 27. Bf4 Re6 28. Ne3 Qc8 {González Barcina,F (2200)-Lanin, B (2150) ICCF 2013 1-0 (62)}) 17... g5 18. Nh3 h6 19. Nf2 O-O 20. Rb1 Ba6 21. f4 g4 22. Rd1 Nb5 23. Nxb5 Bxb5 24. Qc2 Rab8 25. Be3 h5 26. Re1 h4 27. Nd1 { Pitkänen,J (1836)-Häusler,K (2222) ICCF 2009 1/2-1/2 (43)}) 16. Nf4 Nc7 17. h4 O-O 18. Rb1 a6 19. Bd2 Nb5 20. e3 Qe8 21. Qb3 Nc7 22. Na4 Ne6 23. Nxe6 Bxe6 24. Bh3 Ng4 25. Nb6 Ra7 26. Qa4 Bf7 27. Qd1 Bh5 28. Qb3 Nh6 29. Bg2 Qg6 30. Rb2 Rb8 31. Qc3 Rd8 32. Qb3 Bf3 33. Nxd5 cxd5 34. Ba5 Bxg2 35. Bxd8 Bxf1 36. Bxe7 Bb5 37. Bg5 Qf7 38. a4 Be8 39. Qb8 Rc7 40. Rb6 Qd7 41. Bxh6 gxh6 42. Rxa6 Qc8 43. Qxc8 Rxc8 44. a5 Bc6 45. Rb6 Kf8 46. h5 Ke8 47. Ra6 Kd7 48. Ra7+ Rc7 49. Ra6 Ke6 50. Kg2 Kf6 51. Rb6 Kg5 52. a6 Kxh5 53. f3 exf3+ 54. Kxf3 Kg5 55. a7 Ba8 56. Ra6 Rc6 57. Ra5 Re6 58. Ra2 h5 59. Ra5 Rg6 60. Ra3 Rc6 61. Ra4 Rc7 62. Ra6 h6 63. Ra4 {1/2-1/2 (63) Evans,D (1677)-Dudeney,P (2137) ICCF 2020 English Opening: 1...e5-2 Nc3}) 10. Qb3 (10. f3 Nb6 11. b3 Qe8 (11... d5 12. c5 Nbd7 13. Nf4 Nb8 14. b4 g5 15. Nh3 h6 16. Rb1 Na6 17. a4 Nc7 18. b5 Ne6 19. fxe4 fxe4 20. Nf2 Bd7 21. Qd2 Rb8 22. Nfd1 Ng4 23. Rxf8+ {Aguiar García,J (2333) -Kreutz,J (2206) ICCF 2010 1-0 (54)}) 12. Nf4 g5 13. Nh3 h6 14. a4 d5 15. a5 Nbd7 16. Qd2 Bb4 17. Ba3 Bxa3 18. Rxa3 Nb8 19. fxe4 Qe7 20. Raa1 dxe4 21. b4 { Glembek,B (2169)-Egan,M (2140) ICCF 2009 1/2-1/2 (53)}) 10... Nb6 11. Nf4 Kh8 12. a4 d5 13. cxd5 Nbxd5 14. Nfxd5 Nxd5 15. a5 Bf6 16. Rd1 Re8 17. Ra3 Re6 18. Nxd5 {Brotherton,T (1757)-Gardner,A ICCF 2008 1-0 (52)}) (6... Na6 7. Nd5 Nf6 8. Nxe7 Qxe7 9. e3 Be6 10. Be2 O-O 11. Nf4 Bf7 12. h4 c6 13. b3 Nc7 14. Bb2 Rfd8 15. g3 Ne6 16. Nxe6 Bxe6 17. Kf1 d5 18. a4 {Ludgate,A (2500)-Klügel,J (2507) ICCF 2016 0-1 (32)}) (6... Be6 7. Nf4 Bf7 8. g4 c6 9. gxf5 Nf6 10. Rg1 O-O 11. Ne6 Bxe6 12. fxe6 d5 13. Qb3 Na6 14. Bh6 Ne8 15. Qxb7 Nb4 16. O-O-O Kh8 17. a3 Rb8 18. Qxa7 {Kusnierz,J (2053)-Díaz Castañet,J (2057) ICCF 2016 1-0 (29)}) 7. g3 (7. e3 O-O (7... c6 8. Nf4 (8. f3 O-O 9. Nf4 exf3 10. Qxf3 c5 11. Bd3 Nc6 12. O-O g6 13. dxc5 dxc5 14. Rd1 Qe8 15. b3 Bd6 16. Ncd5 Ne5 17. Nxf6+ Rxf6 18. Qg3 Nxd3 19. Rxd3 Qe5 {Eilmes,D (2314)-Deneuville,C (2250) ICCF 2009 1/2-1/2 (59)}) 8... O-O (8... Na6 9. Be2 O-O 10. O-O Nc7 11. Qb3 Kh8 12. Bd2 Rb8 13. d5 c5 14. h4 a6 15. h5 Bd7 16. a4 b6 17. Qa3 Qe8 18. b4 g5 19. hxg6 hxg6 {Primrose,J (2042)-Cook,D (2216) ICCF 2014 0-1 (35)}) 9. h4 (9. Be2 g5 10. Nh3 h6 11. f3 d5 12. cxd5 exf3 13. gxf3 cxd5 14. Rg1 Nc6 15. Kf1 Kh8 16. Nf2 Bd6 17. Nb5 Bxh2 18. Rh1 Bg3 19. Rxh6+ Kg7 20. Rh1 f4 {Kusnierz,J (2236) -Løvholt,T (2183) ICCF 2008 0-1 (37)}) 9... Na6 10. a3 (10. Be2 Nc7 11. d5 (11. Qb3 b6 (11... Rb8 12. h5 Ne6 13. h6 g6 14. d5 Nxf4 15. exf4 Qb6 16. Qc2 cxd5 17. cxd5 Bd7 18. Be3 Qa5 19. a3 a6 20. Qd2 b5 21. b4 Qc7 22. Rc1 Qb7 23. g3 { Sciarretta,R (1833)-Ballard,D (2045) ICCF 2008 1/2-1/2 (53)}) 12. h5 Ne6 13. h6 g6 14. d5 cxd5 15. Nfxd5 Nc5 16. Qd1 Nxd5 17. Nxd5 Bf6 18. Rb1 Be5 19. b4 Ne6 20. Bb2 Bb7 21. Qb3 Bxb2 22. Qxb2 Rf7 {Endsley,B (2177)-Díaz Castañet,J (2247) ICCF 2009 1/2-1/2 (61)}) 11... cxd5 12. cxd5 (12. Ncxd5 Ncxd5 13. cxd5 Ng4 14. g3 Bf6 15. O-O Bxh4 16. gxh4 Qxh4 17. Bxg4 fxg4 18. Bd2 Rxf4 19. exf4 g3 20. fxg3 Qxg3+ {1/2-1/2 (20) Nucci,L (2251)-Jensen,K (2246) ICCF 2018}) 12... Nd7 ( 12... Ng4 13. Nxe4 Bxh4 14. g3 fxe4 15. Bxg4 Bf6 16. Be6+ Nxe6 17. dxe6 Qe7 18. Qg4 g6 19. Nd5 Qxe6 20. Qxe6+ Bxe6 21. Nc7 Rae8 22. Nxe8 Rxe8 23. Bd2 Rc8 24. Rc1 {Khrolenko,V (2029)-Ivanov,V (2174) ICCF 2012 0-1 (36)}) 13. g3 (13. Bd2 Ne5 14. g3 Bf6 15. Rc1 Bd7 16. O-O b5 17. a3 a5 18. Ne6 Bxe6 19. dxe6 Rb8 20. Nxe4 fxe4 21. Bxa5 Rb7 22. Qc2 Qe7 23. Bxc7 Rc8 24. Bxd6 Rxc2 {Kurylo,R (2344) -Mehlhorn,U (2376) ICCF 2018 1/2-1/2 (37)}) 13... Bf6 (13... b5 14. O-O b4 15. Nb5 Nxb5 16. Bxb5 Qb6 17. Be2 Nc5 18. b3 Bf6 19. Rb1 Be5 20. Bb2 Bxf4 21. exf4 Bb7 22. Rc1 Rf7 23. Bd4 Rc8 24. Qd2 Qa5 25. Rfd1 {Mason,I (2220)-Cook,D (2216) ICCF 2014 1/2-1/2 (37)}) 14. Bd2 b6 15. Rc1 Ne5 16. Qa4 Qe7 17. Nb5 Nxb5 18. Qxb5 Bd7 {Merrow,C (2116)-Díaz Castañet,J (2247) ICCF 2009 1/2-1/2 (72)}) (10. h5 Rf7 11. Bd2 Nc7 12. d5 Ng4 13. Be2 Bf6 14. g3 Qe8 15. Qb3 Ne5 16. Kf1 Nf3 17. Bxf3 exf3 18. Kg1 h6 19. a4 Na6 20. Qd1 Nc5 21. Qxf3 b6 {Vekelis,G (2349) -Brotherton,T (2208) ICCF 2018 1/2-1/2 (39)}) 10... Nc7 11. d5 cxd5 12. h5 dxc4 13. Bxc4+ d5 14. Ncxd5 Ncxd5 15. b4 b5 16. Bxd5+ Nxd5 17. Qxd5+ Qxd5 18. Nxd5 Bd8 19. Bb2 {Postupa,P (2251)-Thoma,O (2179) ICCF 2015 1/2-1/2}) 8. Be2 c6 9. O-O Na6 (9... Be6 10. d5 Bf7 11. Ng5 Nbd7 12. dxc6 bxc6 13. b4 Ne5 14. Nxf7 Rxf7 15. b5 Rc8 16. Bb2 Nfd7 17. bxc6 Rxc6 18. Nd5 Bh4 19. g3 Bg5 20. Bd4 Nc5 21. Qc2 {Cornea,A (2098)-Thomas,G (1925) ICCF 2016 1-0 (48)}) (9... d5 10. cxd5 cxd5 11. Qb3 Kh8 12. Bd2 Nc6 13. Rac1 Na5 14. Qc2 a6 15. Nf4 Nc4 16. Be1 b5 17. h4 Bd6 18. a4 Bxf4 19. exf4 e3 20. axb5 axb5 21. b3 {Hospers,B (1973)-Necula,I (2373) ICCF 2017 0-1 (47)}) (9... Kh8 10. Bd2 (10. Nf4 Na6 11. b3 Nc7 12. d5 g5 13. Nh3 h6 14. Bb2 Kh7 15. dxc6 bxc6 16. Qc2 d5 17. Rad1 Qd6 18. Kh1 Kg8 19. cxd5 cxd5 20. f3 exf3 21. Rxf3 Ng4 {Pranitchi,T (2184)-Lanin,B (2150) ICCF 2013 1-0 (82)}) 10... Na6 (10... Be6 11. f3 Bg8 12. fxe4 fxe4 13. Rc1 d5 14. cxd5 cxd5 15. Na4 Bd6 16. Nc5 Qe7 17. Qb3 b6 18. Na4 Nbd7 19. Nc3 Ne5 20. Nb5 Nc4 21. Be1 a5 22. Nxd6 {Junge,W (2326)-Debevec,B (2321) ICCF 2009 1/2-1/2 (34) }) 11. Qb3 (11. Nf4 Bd7 12. Rc1 Nc7 13. d5 c5 14. a3 Qe8 15. b4 g5 16. Nh5 b6 17. bxc5 bxc5 18. Rb1 Rb8 19. Ng3 Qg6 20. f3 exf3 21. Bxf3 g4 22. Be2 Nh5 { Kushnaryov,A-Perrin,R (1810) ICCF 2010 1-0 (38)}) (11. f3 Nc7 12. Qc2 d5 13. Rac1 Bd6 14. c5 Be7 15. b4 Qe8 16. a4 Bd7 17. Rb1 b6 18. Be1 exf3 19. Rxf3 Ne4 20. Rf1 bxc5 21. bxc5 Bf6 22. Nxe4 fxe4 {Tazelaar,H (2480)-Montgomery,R (2208) ICCF 2005 1-0 (41)}) 11... Nc7 12. d5 c5 13. Nf4 g5 14. Nh3 Nd7 15. f4 g4 16. Nf2 Nf6 17. a3 h5 18. Qc2 h4 19. b4 cxb4 20. axb4 Bd7 21. Qb2 {Gross,M (2213) -McElroy,W (1967) ICCF 2010 1-0}) 10. a3 (10. Bd2 Nc7 (10... Bd7 11. Rc1 Nc7 12. Nf4 Ne6 13. d5 Nxf4 14. exf4 cxd5 15. cxd5 a6 16. Qb3 b5 17. Nd1 Qb8 18. Ne3 Bd8 19. Rc6 Bb6 20. Bb4 Ne8 21. Rfc1 Kh8 22. R6c2 {Clark,S (2043) -Jefferson,N (2071) ICCF 2016 0-1 (38)}) 11. f3 (11. d5 Nd7 12. Nf4 Ne5 13. Qb3 Bd7 14. Qxb7 g5 15. Nh5 Be8 16. Qb3 Rb8 17. Qc2 cxd5 18. cxd5 Bxh5 {Anreiter,A (2231)-Häusler,K (2174) ICCF 2012 1/2-1/2 (35)}) 11... exf3 12. Bxf3 Be6 13. Qb3 b5 14. Bxc6 Bxc4 15. Qc2 Bxf1 16. Bxa8 Qxa8 17. Rxf1 g6 18. Rc1 a5 19. Nf4 b4 20. Nce2 Ncd5 21. Qc4 Re8 {Fernández Fornés,J (2248)-Diaz,S (2448) ICCF 2016 1/2-1/2 (53)}) (10. d5 Nc7 (10... Nd7 11. Rb1 Ne5 12. Nf4 g5 13. Nh5 Bd7 14. b4 c5 15. b5 Nb4 16. a3 Nbd3 17. f4 gxf4 18. exf4 Nxc1 19. fxe5 Nxe2+ 20. Nxe2 Qe8 21. e6 Qxh5 22. exd7 {Spasov,S (2200)-Díaz Castañet,J (2135) ICCF 2012 1/2-1/2 (42)}) (10... Bd7 11. b3 Ng4 12. dxc6 bxc6 13. Ba3 Nc5 14. Bxc5 dxc5 15. Bxg4 fxg4 16. Nf4 Bf5 17. Qxd8 Raxd8 18. Rad1 g6 19. Nfe2 Bd6 20. Ng3 Rfe8 21. Nxf5 gxf5 22. g3 {Sadler,C (2254)-Kireev,V (2101) ICCF 2011 1/2-1/2 (33)}) 11. b3 Ng4 (11... Bd7 12. Bb2 Be8 13. f3 exf3 14. Bxf3 Qc8 15. e4 fxe4 16. Nxe4 cxd5 17. cxd5 Bg6 18. Neg5 h6 19. Re1 Re8 20. Ne6 Qd7 21. Rc1 Rac8 22. Nhf4 Bf5 23. Rxc7 {Vannicola,R-Capuzzi,G (1801) ICCF 2011 1-0 (28)}) 12. Qd2 c5 13. Bxg4 fxg4 14. Nf4 Bf6 15. Bb2 Qe8 16. a3 Be5 17. b4 b6 18. Nb1 Ba6 19. b5 Bc8 20. a4 a5 21. bxa6 Rf6 {Van tricht,M (2410)-Peeren,Y ICCF 2005 1/2-1/2 (46) }) (10. f3 Nc7 11. Qb3 Kh8 12. Bd2 (12. fxe4 fxe4 13. Nf4 Rb8 14. Bd2 Ne6 15. d5 cxd5 16. Nfxd5 Nxd5 17. Nxd5 Nc5 18. Qa3 a6 19. b4 Nd7 20. Bc3 Bf6 21. Nxf6 Nxf6 22. Rad1 Ng4 23. Qb2 Qe7 {Richardt,M-Gawne,M ICCF 2013 1-0}) 12... d5 13. cxd5 Ncxd5 14. Nxd5 Nxd5 15. fxe4 fxe4 16. Rxf8+ Bxf8 17. Nf2 Qh4 18. g3 Qe7 19. Rf1 g6 20. Qc2 Bf5 21. g4 Bh6 {Torrijos Alhambra,J (2112)-Tarmak,M (1830) ICCF 2009 1/2-1/2 (29)}) 10... Nc7 11. b4 a6 12. a4 Bd7 13. a5 d5 14. c5 Ne6 15. Na4 Qc7 16. Nb6 Rad8 17. f3 Be8 18. Rf2 Nd7 {Stevens,D-Shannon,P (1934) ICCF 2015 1-0 (36)}) (7. Bg5 h6 (7... c6 8. Nf4 (8. e3 Ng4 9. Bxe7 Qxe7 10. Nf4 Qh4 11. g3 Qe7 12. Be2 O-O 13. Qb3 Kh8 14. h3 Nh6 15. Rg1 Nf7 16. g4 Nd7 17. O-O-O Nb6 18. Qa3 Nd8 19. c5 dxc5 {Boreika,V (2242)-Kasparavicius,L (2125) ICCF 2009 1-0 (51)}) 8... Nd5 9. cxd5 Bxg5 10. e3 Bxf4 11. exf4 O-O 12. Bc4 Kh8 13. Qd2 b5 14. Bb3 a5 15. Rc1 Ba6 16. a3 c5 17. dxc5 dxc5 18. Bd1 Qd6 19. Be2 { Jenkinson,S (2056)-McElroy,W (1967) ICCF 2010 1/2-1/2 (27)}) 8. Bd2 Be6 9. Qb3 b6 10. d5 Bf7 11. Qa4+ Nbd7 12. Nb5 O-O 13. Nd4 Ng4 14. Nxf5 Bf6 15. f3 exf3 16. gxf3 Nge5 17. Nf2 Bg5 18. f4 Bg6 {Chlubna,J (1812)-Blondel,F (1934) ICCF 2015 0-1 (60)}) (7. f3 O-O 8. Qb3 Nc6 9. Be3 Na5 10. Qa4 c5 11. d5 Bd7 12. Qc2 Nxc4 13. Bf4 Nh5 14. e3 Nxf4 15. Bxc4 Nxh3 16. gxh3 Bh4+ 17. Kd2 exf3 18. Rad1 Qa5 {Towery,B (1721)-Calkins,D ICCF 2011 0-1 (35)}) (7. Bf4 O-O 8. e3 c5 (8... Na6 9. Qb3 c6 10. c5+ d5 11. Bxa6 bxa6 12. Qa4 Qd7 13. Bg3 Qb7 14. Qb3 Qd7 15. O-O-O a5 16. Qa4 Bd8 17. Bd6 Re8 18. Kb1 Bc7 19. Bxc7 Qxc7 20. Nf4 {Cardoso García,S (2327)-Santamaría Pérez,T (2402) ICCF 2018 1/2-1/2 (40)}) 9. dxc5 dxc5 10. Be2 h6 11. Bg3 g5 12. f3 Nc6 13. O-O exf3 14. Bxf3 Qxd1 15. Raxd1 Bd7 16. Nf2 Rad8 17. Rfe1 Kh7 18. h3 g4 {Junge,W (2360)-Kroll,O (2217) ICCF 2015 1-0 (43)}) 7... O-O (7... c5 8. e3 O-O 9. Be2 Be6 10. b3 cxd4 11. exd4 d5 12. O-O Na6 13. Bf4 Nc7 14. Rc1 Rc8 15. Qd2 Bb4 16. c5 Bd7 17. Qb2 Ne6 18. Be5 Qa5 { Kozlov,A (2213)-Kireev,V (2162) ICCF 2012 1-0 (44)}) 8. Bg2 c6 (8... c5 9. d5 Nbd7 10. O-O Ne5 11. b3 Nh5 12. f3 Bf6 13. Qc2 exf3 14. exf3 a6 15. Bd2 b5 16. Ne2 Bd7 17. Rab1 Qe8 18. Rfe1 Rb8 19. cxb5 {Rain,R (2392)-Díaz Castañet,J (2257) ICCF 2008 1-0 (40)}) 9. O-O Na6 (9... d5 10. cxd5 cxd5 11. Bg5 Be6 ( 11... Nc6 12. Nf4 Ne8 13. Bxe7 Nxe7 14. Qb3 Nf6 15. h4 g6 16. Rfc1 Rb8 17. Qa3 a6 18. Na4 b6 19. Rxc8 Nxc8 20. Ne6 Qd6 21. Qxd6 Nxd6 22. Nxf8 Kxf8 23. Rc1 { Armani,G (2341)-Pohjosmäki,R (2307) ICCF 2018 1/2-1/2 (31)}) 12. Nf4 Bf7 13. Qb3 Nc6 (13... Qd7 14. e3 Rd8 15. Rfc1 h6 16. Bxf6 Bxf6 17. Bf1 Kh7 18. Na4 b6 (18... Qe7 19. Bh3 g6 20. Rc5 Na6 21. Rc3 Rab8 22. Rac1 Kg7 23. Nc5 Nxc5 24. Rxc5 Qd6 25. Qa4 a6 26. Qb3 Be7 27. Bf1 g5 28. Ne2 Be8 29. Nc3 Bc6 30. Na4 { Dullemond,H (2297)-Fagerström,M (2298) ICCF 2019 1/2-1/2 (50)}) 19. Bb5 Qd6 20. Qc2 g5 21. Qc7 {Mason,I (2258)-Jefferson,N (2087) ICCF 2013 1/2-1/2 (51)}) 14. Qxb7 Nxd4 15. Rfd1 h6 16. Bxf6 Bxf6 17. Nfxd5 Rb8 18. Nxf6+ Qxf6 19. Qxa7 Rfd8 20. Rab1 Ra8 21. Qc7 {Vötter,H (2453)-Vozda,J (2428) ICCF 2005 1/2-1/2 (26)}) ( 9... Kh8 10. d5 Nbd7 (10... Na6 11. Nf4 Ng4 12. Rb1 Bf6 13. Nh5 Be5 14. h3 Bxc3 15. bxc3 Ne5 16. dxc6 bxc6 17. f4 Nf7 18. Be3 Nc5 19. Qd2 Rg8 20. Rb4 Qe7 21. Kh2 Nd7 22. Rbb1 {Viberg,J (2103)-Ott,P (2110) ICCF 2017 0-1 (29)}) 11. b3 Ne5 12. Bb2 Bd7 (12... Rb8 13. Qd2 Ng6 14. Rfd1 Nd7 15. f3 Qb6+ 16. Qd4 Qxd4+ 17. Rxd4 c5 18. Rd2 exf3 19. exf3 a6 20. a4 Bf6 21. f4 Re8 22. Bf1 h6 23. Kg2 Ndf8 24. Ng1 {Kratochvíl,J (2114)-Gavrijski,D (2049) ICCF 2011 1-0 (43)}) (12... Qe8 13. Qd2 Bd7 (13... b5 14. cxb5 cxb5 15. Nf4 Rb8 16. Rac1 Bd8 17. Nd1 Bb6 18. Bd4 g5 19. Bxb6 Rxb6 20. Nh3 h6 21. f4 exf3 22. exf3 f4 23. gxf4 Bxh3 24. Bxh3 gxf4 25. Kh1 {Keitsch,U (2231)-Tarmak,M (1830) ICCF 2009 1/2-1/2 (41)}) 14. Rad1 a5 15. Nf4 a4 16. Ba3 axb3 {0-1 (16) Giroux,M (2036)-Egan,M (2281) ICCF 2012}) 13. Qd2 cxd5 14. Nxd5 Nxd5 15. Qxd5 Bc6 16. Qd2 Ng6 17. Rad1 b5 18. c5 d5 19. b4 a5 20. a3 Bf6 21. f3 {Da-Riva Alonso,J (2206)-De Carlos Arregui,I (2392) ICCF 2009 0-1 (72)}) 10. d5 (10. f3 Qb6 11. Nf4 (11. Na4 Qb4 12. b3 d5 13. a3 Qd6 14. Nc3 Nc7 15. Bf4 Qd8 16. Be5 Bd6 17. Bxd6 Qxd6 18. Qd2 Ne6 19. c5 Qd7 20. b4 b6 21. Nf4 Ba6 22. Rfb1 {Halliwell,T (2107)-Deneuville,C (2184) ICCF 2011 0-1 (62)}) (11. fxe4 fxe4 12. a3 Nc7 13. Bg5 Be6 14. b3 d5 15. Na4 Qa5 16. Bd2 Qa6 17. Bf4 Nce8 18. Nc5 Bxc5 19. dxc5 dxc4 20. b4 b5 21. Be5 Qc8 22. Ng5 Bd5 {Geiser,A (2269)-Pohjosmäki,R (2291) ICCF 2016 1/2-1/2 (46)}) 11... g5 12. Nh3 h6 13. fxe4 (13. b3 d5 14. fxe4 fxe4 (14... dxe4 15. e3 Be6 16. Qe2 Ng4 17. Nf2 Nxf2 18. Rxf2 Nb4 {1/2-1/2 (18) Eichhorn,A-Kleiser,G (2312) ICCF 2013}) 15. Qd2 Ng4 16. Rxf8+ Bxf8 17. Bb2 Qd8 18. Rf1 Be6 19. e3 Nb4 20. Nxe4 dxc4 21. Nhf2 Nxf2 22. Rxf2 Nd3 {Lukásová,A (2311)-Rajala,O (2101) ICCF 2015 1-0 (38)}) 13... fxe4 14. e3 d5 15. cxd5 Bg4 16. Qc2 Nb4 17. Qb3 cxd5 18. Bd2 Qe6 19. Nf2 Bf5 20. Rac1 Nc6 21. Nd3 Rad8 {Zeihser,M (2403)-Keskowski,T (2405) ICCF 2018 1/2-1/2 (44)}) (10. a3 Nc7 11. Bg5 (11. d5 cxd5 12. cxd5 Bd7 13. Qb3 a5 14. Nf4 {1/2-1/2 (14) Holmström,J (2164)-Ambirk,J (2011) ICCF 2012}) 11... d5 12. cxd5 Nfxd5 13. Bxe7 Qxe7 14. Qb3 Kh8 15. Rac1 g5 16. e3 Nb6 17. Qd1 Be6 18. Re1 h6 19. f3 exf3 20. Bxf3 Rad8 21. Bg2 Qg7 {Wood,B (1893)-Pajak,J (2256) ICCF 2016 0-1 (25)}) (10. b3 d5 11. c5 Bd7 12. f3 Nc7 13. Bf4 Ne6 14. Be5 Qa5 15. Qd2 Qd8 16. Nd1 Bc8 17. Ne3 exf3 18. exf3 Nd7 19. Bf4 Ndxc5 20. dxc5 Bxc5 21. Rac1 Qb6 {Reynolds,J-Disque,P ICCF 2012 1-0 (53)}) (10. Bf4 Nc7 11. f3 Ne6 12. fxe4 Nxe4 13. Nxe4 fxe4 14. Bxe4 Nxd4 15. Qxd4 Bxh3 16. Bg2 Bxg2 17. Kxg2 Qd7 18. Rae1 Qe6 19. e4 Rad8 20. Qxa7 g5 21. Bd2 Rxf1 {Guadagno,J (1959)-Cook, D (2036) ICCF 2013 0-1}) 10... Qa5 (10... Bd7 11. Bf4 (11. a3 Kh8 12. Rb1 cxd5 13. cxd5 Kg8 14. Nf4 Qe8 15. h4 Qf7 16. Be3 Ng4 17. Bd4 Ne5 18. f3 exf3 19. exf3 Nc7 20. Rc1 Rfc8 21. Re1 Bf6 22. b3 {Bendaña Guerrero,G (2432)-Barnsley,T (2504) ICCF 2011 1/2-1/2}) 11... Qb6 12. Qd2 Nc7 13. Rac1 (13. dxc6 Bxc6 14. Rab1 Qa6 15. Rfc1 b5 16. c5 Nfe8 17. cxd6 Nxd6 18. Qd1 Rad8 19. Qb3+ Kh8 20. Ng5 Rd7 21. Rd1 Qc8 22. Rbc1 Nc4 {Pallás Muiño,J (2330)-Bröker,C (2331) ICCF 2014 1/2-1/2 (30)}) 13... c5 14. f3 exf3 15. exf3 Rae8 16. Rfe1 Nh5 17. Bg5 Bxg5 18. Nxg5 h6 19. Nh3 Qb4 20. Bf1 b5 21. Nf4 Nxf4 22. Qxf4 {Girard,E-Pintor, M (2213) ICCF 2007 1/2-1/2 (30)}) (10... Nc7 11. a4 (11. Qb3 cxd5 12. cxd5 b5 13. Nf4 Bd7 14. a3 a5 15. Be3 a4 16. Qd1 Ng4 17. Bb6 Rb8 18. Bxc7 Qxc7 19. Ne6 Bxe6 20. dxe6 Qc8 21. Qd5 Qc5 22. Bh3 Ne5 {Gorin,A (2045)-Ivanov,V (2174) ICCF 2012 1/2-1/2 (39)}) (11. Nf4 g5 12. Nh3 h6 13. f3 cxd5 14. cxd5 exf3 15. exf3 b5 16. Qb3 a5 17. f4 Ng4 18. Qc2 b4 19. Na4 Bf6 20. Kh1 Nb5 21. fxg5 hxg5 22. Qd2 Re8 {Kasprzyk,Z-Gavrijski,D (2143) ICCF 2012 1-0 (52)}) 11... Nd7 (11... a5 12. f3 exf3 (12... cxd5 13. cxd5 Na6 14. Be3 Nc5 15. Nf2 exf3 16. exf3 Re8 17. Re1 Bd7 18. Bf1 Rc8 19. Nb5 Bf8 20. Bc4 Nh5 21. Qd2 f4 22. gxf4 Qf6 {Holmberg, R (2568)-Zawadka,A (2438) ICCF 2003 1-0 (44)}) 13. exf3 Re8 (13... cxd5 14. cxd5 Nd7 15. Re1 Nc5 16. Be3 b6 17. Bf1 Bf6 18. Nf4 Re8 19. Qc2 (19. Rc1 Bb7 20. Rc2 Rc8 21. Bc4 Be5 22. Rce2 Qf6 23. Nb5 Bxf4 24. gxf4 Nxb5 25. Bxb5 Rf8 26. b3 Qh4 27. Kh1 Rc7 28. Rg2 Rfc8 29. Bf2 Qxf4 30. Be3 Qh4 {Corfield,J (2332) -Brennan,R ICCF 2016 1-0 (35)}) 19... Be5 20. Rab1 Bd7 21. Nd3 Bf6 22. Nf4 Rxe3 23. Rxe3 Bd4 24. Qf2 {Hamilton,D (2007)-Ruiter,T (2121) ICCF 2011 1/2-1/2 (34)} ) 14. Be3 cxd5 15. cxd5 Nd7 16. Nf4 Nc5 17. Re1 Bf6 18. Rb1 b6 19. Bf1 Bb7 20. Bc4 Rc8 21. Bxc5 bxc5 22. Nb5 Nxb5 23. axb5 {Siikaluoma,A (2216)-Salvatore,C (2201) ICCF 2006 1/2-1/2 (50)}) (11... cxd5 12. cxd5 Qe8 (12... b6 13. f3 exf3 14. exf3 Nd7 15. Nf4 a5 16. Re1 Nc5 17. Be3 Re8 18. Rb1 Bf6 19. Bf1 Be5 20. Bc4 Bd7 21. Ne6 N7xe6 22. dxe6 Bxe6 23. Bxe6+ Nxe6 24. Nd5 {Bißmann,S (2394)-Pajak, J (2213) ICCF 2017 1-0 (28)}) 13. f3 b5 14. fxe4 b4 15. Na2 fxe4 16. Nxb4 a5 17. Nc2 Bxh3 18. Bxh3 Qh5 19. Bg2 Ng4 20. h3 Rxf1+ 21. Qxf1 Rf8 {1/2-1/2 (21) Moorsel,A-Hebrard,J ICCF 2007}) (11... Ng4 12. f3 exf3 13. exf3 Ne5 14. Qe2 ( 14. b3 Bf6 15. Bb2 Na6 16. Rb1 Nb4 17. Nf4 g5 18. Nh5 Bh8 19. Qd2 Ned3 20. Na2 Nxb2 21. Nxb4 a5 22. Na2 h6 23. Kh1 Qe8 24. g4 fxg4 25. fxg4 Bxg4 {Rain,R (2391)-Díaz Castañet,J (2268) ICCF 2007 1/2-1/2 (46)}) 14... Re8 15. f4 Ng4 16. Nf2 Bf6 17. Qd1 Nxf2 18. Rxf2 c5 19. Re2 Rxe2 20. Qxe2 Bd7 21. Bd2 Bd4+ 22. Kf1 Qf6 23. Re1 {Yalov,S (2349)-Montgomery,R (2208) ICCF 2005 1/2-1/2 (28)}) 12. f3 exf3 13. exf3 c5 14. Qb3 (14. b3 Bf6 15. Bd2 Nb8 16. Rb1 Nba6 17. Na2 Nb8 18. Nc1 Nd7 19. Qc2 g6 20. Nd3 Bg7 21. Rfe1 Ne5 22. Nxe5 Bxe5 23. Rxe5 {Richardt, M-Recasens Sánchez,J (2080) ICCF 2013 1-0}) 14... Bf6 15. Re1 Ne5 16. Nf2 Nf7 17. Bd2 Bd7 18. f4 Rb8 19. Nd3 Re8 20. Bf3 b6 21. Rxe8+ Nxe8 22. Nb5 {Repanic, F (2229)-Cvetnic,V (2383) ICCF 2007 1/2-1/2 (46)}) 11. a3 Nc7 12. Bd2 Qa6 13. Rc1 Bd7 14. Qb3 Rac8 15. Rfe1 Kh8 {Portych,V (2044)-Fric,P (2407) ICCF 2008 0-1 (44)}) (4. d3 Nf6 5. g3 (5. Bg5 Be7 6. e3 (6. e4 O-O 7. Be2 Nc6 8. O-O Nd4 9. Nxd4 exd4 10. Nb5 c5 11. Bf3 a6 12. Na3 Rb8 13. exf5 Bxf5 14. Re1 Qd7 15. Rb1 b5 16. cxb5 axb5 17. b4 c4 {Pronovost,D (1759)-Shannon,P (1934) ICCF 2015 1/2-1/2 (27)}) (6. Bxf6 Bxf6 7. e3 O-O 8. Be2 Be6 9. Rc1 Nd7 10. b4 c6 11. O-O Qe7 12. a4 a5 13. b5 g6 14. h3 Kg7 15. Re1 Bf7 16. Nd2 Rfd8 17. Qc2 d5 { Matos,V (1472)-Berger,B (1755) ICCF 2020 0-1}) 6... O-O 7. Be2 c6 8. O-O Na6 9. d4 h6 10. Bh4 e4 11. Nd2 Be6 12. a3 Nc7 13. f3 exf3 14. Nxf3 Ng4 15. Bg3 Nxe3 16. Qb3 Nxf1 {Grant,J (1834)-Harvey,D (2033) ICCF 2010 0-1 (29)}) (5. Bd2 Nc6 6. g3 Be7 7. Bg2 O-O 8. O-O Bd7 9. a3 a5 10. Re1 h6 11. Qc2 Qe8 12. b3 Qf7 13. Rad1 Nd8 14. e3 Ne6 15. Nh4 Nh5 16. Nf3 g5 {Martins Barriga,F (2270)-Rebord,M (2507) ICCF 2009 0-1 (38)}) (5. e3 Be7 6. Be2 O-O 7. O-O Kh8 8. b4 a5 9. b5 Qe8 10. Bb2 Nbd7 11. Qc2 c6 12. Na4 Ng8 13. h4 Nh6 14. g3 Ng4 15. Kg2 Qg6 16. Rh1 f4 {Voglimacci,N (1641)-LeSavouroux,H (1852) ICCF 2012 0-1}) 5... Be7 (5... c6 6. Bg2 (6. c5 e4 7. dxe4 fxe4 8. Nd4 d5 9. b4 a5 10. Qa4 Bd7 11. Ba3 b5 12. Qc2 axb4 13. Bxb4 Na6 14. Qb2 e3 15. f3 h5 16. Nd1 h4 17. Rg1 hxg3 {Clapp,J (1937) -Terry,P (1798) ICCF 2015 0-1 (30)}) 6... g6 (6... Be7 7. O-O O-O 8. Rb1 (8. Bg5 h6 9. Bxf6 Bxf6 10. e3 Be6 11. Rc1 a5 12. b3 Na6 13. a3 Nc7 14. a4 Na6 15. Na2 Qe8 16. Qd2 Nc5 {Parente,M (1614)-Illingworth,J (1773) ICCF 2019 0-1 (34)}) 8... h5 {0-1 (8) Mohanadasan,T (1754)-Delgado,L (2015) ICCF 2012}) 7. O-O Bg7 8. b4 O-O 9. Rb1 h6 10. b5 a6 (10... g5 11. bxc6 bxc6 12. Ba3 Ne8 13. Nd2 Be6 14. Qa4 Qc8 15. Rfc1 Rf7 16. Nb3 h5 17. Na5 Rc7 18. e3 h4 19. gxh4 gxh4 20. Kh1 {Beck,G (1879)-Boucher,B (1763) ICCF 2020 1-0 (30)}) 11. bxc6 Nxc6 12. Nd2 Rf7 13. Ba3 Bf8 14. Nd5 Be6 15. Nxf6+ Qxf6 16. Rxb7 Rxb7 17. Bxc6 {Belchev,B (2323) -Baranowski,T (2487) ICCF 2009 1-0 (49)}) 6. Bg2 (6. Bh3 O-O 7. O-O c5 8. Bg2 Nc6 9. a3 Bd7 10. b3 Qe8 11. Rb1 Rb8 12. b4 a6 13. bxc5 dxc5 14. Bd2 Bd6 15. Bg5 h6 16. Bxf6 Rxf6 17. Nh4 g5 {Dolgy,Y-Kireev,V (2162) ICCF 2012 1/2-1/2 (36) }) 6... O-O (6... a5 7. O-O O-O 8. a3 (8. e4 Nc6 9. exf5 Bxf5 10. d4 h6 11. Re1 e4 12. Nh4 Bg4 13. f3 exf3 14. Bxf3 Qd7 15. Ng6 Rf7 16. Bf4 Bxf3 17. Qxf3 Nxd4 18. Qd3 Nc6 19. Re2 Nb4 {Lindberg,W (2186)-Holland,E (2190) ICCF 2020 1/2-1/2 (47)}) 8... c6 9. Be3 Na6 10. Na4 Nd7 11. Qc2 f4 12. Bd2 Nac5 13. Nxc5 Nxc5 14. b4 Ne6 15. bxa5 Qe8 16. e3 Qh5 17. d4 g5 18. h3 {Banshchikov,V-Novak,A (1959) ICCF 2011 1/2-1/2}) 7. O-O (7. b4 Qe8 (7... c6 8. O-O a5 (8... Kh8 9. Rb1 Nbd7 10. b5 c5 11. a4 Rb8 12. Ng5 Nb6 13. a5 Na8 14. Bd2 b6 15. axb6 axb6 16. Ra1 Bd7 17. Ra7 Nc7 18. Bc6 {1-0 (18) Fonseca,P (2132)-Humphreys,S (2072) ICCF 2013 }) 9. b5 c5 10. e4 fxe4 11. Ng5 Ra7 12. Ncxe4 Nxe4 13. Nxe4 Nd7 14. Bb2 Nb6 15. Qd2 Bf5 16. Rae1 Nd7 17. f4 b6 18. Nxd6 Bxd6 19. fxe5 {Anreiter,A (2213) -Somogyi,J (2076) ICCF 2013 1-0 (25)}) 8. Qb3 Kh8 9. a4 a5 10. b5 Nbd7 11. O-O Nc5 12. Qc2 Qh5 13. d4 exd4 14. Nxd4 Bd7 15. Rd1 Rae8 16. e3 Ng4 17. h3 Nf6 18. Nce2 Nfe4 {Walczak,A (2363)-Bee,M ICCF 2004 1-0 (57)}) 7... Qe8 (7... Kh8 8. Rb1 Qe8 9. b4 Qh5 10. e3 Nc6 11. b5 Nd8 12. Nd5 Nxd5 13. cxd5 Nf7 14. Nxe5 Qh6 15. Nxf7+ Rxf7 16. Qc2 Bf6 17. e4 Qg6 18. Rb4 Bd7 19. a4 {Hornung,M-Groenhout, R (1853) ICCF 2016 1-0 (41)}) 8. b4 (8. a3 Nc6 9. b4 a6 10. Rb1 h6 11. a4 Bd7 12. b5 axb5 13. axb5 Nd8 14. Bd2 Ne6 15. Nh4 Nc5 16. f4 exf4 17. gxf4 Bd8 18. Qe1 Ng4 19. Qg3 Ra3 {Linden,W (1906)-Carlsen,T (1946) ICCF 2013 1-0 (53)}) (8. Qb3 Kh8 (8... Nc6 9. Be3 a5 10. Rac1 Bd8 11. c5+ d5 12. Nxd5 Nxd5 13. Ne1 Kh8 14. Bxd5 f4 15. Bd2 fxg3 16. hxg3 Nd4 17. Qd1 Qh5 18. f3 Qh3 19. Rf2 Nf5 20. f4 {Kamenskikh,A (1973)-Zeihen,P (2285) ICCF 2017 0-1 (50)}) 9. Re1 Na6 10. d4 e4 11. Nd2 Ng8 12. f3 Bf6 13. e3 exf3 14. Nxf3 b6 15. e4 Bb7 16. Be3 Qh5 17. Nd5 fxe4 18. Nd2 Bxd5 19. cxd5 Rae8 {Shvets,G (1972)-Blondel,F (1985) ICCF 2015 1-0 (68)}) (8. Rb1 a5 9. a3 Na6 10. b4 Qh5 11. h3 axb4 12. axb4 Bd7 13. Qb3 c6 14. Rd1 Kh8 15. Na4 e4 16. Nd4 c5 17. bxc5 Bxa4 18. Qxa4 dxc5 19. Nb5 {Goretov, A (2310)-Sychov,A (2161) ICCF 2009 1/2-1/2 (57)}) 8... Nc6 (8... Qh5 9. Qb3 (9. Rb1 a6 10. a4 Kh8 (10... a5 11. b5 Nbd7 12. Ba3 f4 13. e3 fxg3 14. fxg3 Nb6 15. Nh4 Bg4 16. Qc2 Rab8 17. h3 Be6 18. e4 Nfd7 19. Nd5 Rxf1+ 20. Rxf1 Bxh4 21. Nxc7 Bxg3 22. Nxe6 {Vecek,M (2255)-Menéndez Rodríguez,G (2157) ICCF 2013 1/2-1/ 2 (31)}) 11. e3 Nc6 12. Nd2 Qxd1 13. Rxd1 a5 14. b5 Nb4 15. Nb3 Ra7 16. Rd2 b6 17. Ba3 Be6 18. Nc1 e4 19. dxe4 fxe4 20. Bb2 Bxc4 {Sodomski,A (2271)-Jacewicz, G (2249) ICCF 2016 1/2-1/2 (46)}) (9. Bd2 Nc6 10. b5 Nd8 11. Nd5 Nxd5 12. cxd5 Nf7 13. Qc2 Bf6 14. Rab1 a6 15. bxa6 Rxa6 16. Rb4 c5 17. dxc6 bxc6 18. a4 Bd7 19. Rb7 Be6 20. a5 Nd8 {Savoca,A (2193)-Compagnone,G (2075) ICCF 2008 1-0 (51)} ) 9... Kh8 10. Bd2 f4 11. Nd5 Nxd5 12. cxd5 g5 13. Rfc1 Bd8 14. Bc3 Nd7 15. Rc2 Nf6 16. Rac1 h6 17. e4 fxe3 18. fxe3 Bh3 19. Nxe5 dxe5 20. Bxh3 {Morley,P (2315)-De Carlos Arregui,I (2361) ICCF 2011 1/2-1/2 (25)}) (8... Kh8 9. Bd2 (9. a4 a5 10. b5 c6 11. Rb1 Nbd7 12. bxc6 bxc6 13. Ng5 Nc5 14. Ba3 Na6 15. Rb6 Bd7 16. Qb3 Rb8 17. Rb1 c5 18. Bd5 Nxd5 19. Nxd5 Bxg5 20. Rxb8 Qxb8 {Gallico, D-Parrott,D (1775) ICCF 2013 0-1}) 9... c6 10. b5 h6 11. Qb3 Be6 12. bxc6 Nxc6 13. Qxb7 Rb8 14. Qa6 e4 15. Ne1 d5 16. cxd5 Nxd5 17. dxe4 Nb6 18. exf5 Bc4 19. Bxc6 Qxc6 20. Qa5 {Thomas,G (1944)-Evans,S (2077) ICCF 2018 1/2-1/2 (44)}) ( 8... a6 9. Qb3 Qh5 10. Re1 h6 11. Bb2 Be6 12. d4 Nbd7 13. dxe5 dxe5 14. Nd5 Bd6 15. Nxf6+ Rxf6 16. a3 c6 17. Rad1 Bc7 18. Rxd7 Bxd7 19. Nxe5 Bxe5 20. Bxe5 { Fonseca,P (2218)-Lukásová,A (2303) ICCF 2013 1/2-1/2 (34)}) 9. Rb1 a6 10. Bg5 h6 11. Bxf6 Bxf6 12. Nd2 Kh8 13. e3 Ne7 14. Re1 c6 15. Na4 Be6 {Popov,V (2089) -Orlovsky,I (2302) ICCF 2015 0-1 (42)}) (4. e4 Nf6 (4... c5 5. Bd3 f4 6. b3 Nf6 7. Bb2 Nc6 8. Nd5 Be7 9. O-O O-O 10. Rc1 Bd7 11. a3 Rc8 12. Re1 Qe8 13. Bc2 Bg4 14. h3 Bh5 15. Bd3 h6 16. Be2 {Caissa,P-Poffers,A ICCF 2011 0-1 (40)}) 5. Qc2 ( 5. d3 Nc6 6. Be2 Be7 7. O-O O-O 8. Nd5 Nd4 9. Nxd4 exd4 10. Nxe7+ Qxe7 11. f3 b6 12. b4 a6 13. Qb3 c5 14. Bg5 h6 15. Bd2 fxe4 16. fxe4 Bg4 {Rheindt,S (1629) -Jacques,G (1658) ICCF 2018 1/2-1/2 (27)}) (5. exf5 Bxf5 6. d4 e4 (6... Nbd7 7. Qe2 (7. Be2 Be7 8. Nh4 Be6 9. d5 Bf7 10. Nf5 O-O 11. O-O Bg6 12. Nxe7+ Qxe7 13. Be3 Ne4 14. Nb5 Ndc5 15. b4 a6 16. Nxd6 Qxd6 17. bxc5 Nxc5 18. h4 h6 {Bourgoin, C (1802)-Dreisch,J (2031) ICCF 2017 0-1 (45)}) 7... c6 8. dxe5 dxe5 9. Nxe5 Be7 10. g4 Nxe5 11. gxf5 Qc7 12. Bd2 O-O-O 13. Bf4 Bd6 14. Bg3 Rhe8 {Houston Smith, D (1838)-Berger,B (1755) ICCF 2020 0-1 (25)}) 7. Nh4 Qd7 8. Nxf5 Qxf5 9. Qb3 b6 10. Be2 Be7 11. Nd5 Nxd5 12. cxd5 O-O 13. O-O Nd7 14. h3 Nf6 15. Bd2 Rae8 16. Bb5 Rb8 {Cooper,R (2038)-Humphreys,S (2072) ICCF 2013 1-0}) (5. Be2 Nxe4 6. d3 Nxc3 7. bxc3 Be7 8. O-O Nd7 9. Bb2 O-O 10. Re1 b6 11. Qc2 Qe8 12. d4 Bb7 13. c5 Kh8 14. c4 e4 15. cxd6 Bxd6 16. Nd2 Qg6 {Dantas,A (1765)-Proskuryakov,M ICCF 2008 0-1}) 5... fxe4 6. Nxe4 Nc6 7. Be2 Nxe4 8. Qxe4 Qf6 9. d4 Bf5 10. dxe5 dxe5 11. Qd5 Bb4+ 12. Bd2 Rd8 13. Qb5 Bxd2+ 14. Nxd2 O-O 15. Nb3 Bh3 {Avery,B (1808)-Evans,S (1738) ICCF 2014 0-1}) (4. e3 c6 5. d4 e4 6. Ng1 Na6 7. Nge2 Nf6 8. Nf4 Nc7 9. d5 g5 10. Nh5 Bh6 11. dxc6 bxc6 12. h4 g4 13. Nf4 Qe7 14. Nce2 Ne6 15. b3 O-O {Hansen,J (2323)-Sogin,D (2335) ICCF 2020 1/2-1/2 (43)}) 4... Nf6 (4... c6 5. Bg2 g5 6. d4 g4 7. Nh4 Bg7 8. d5 f4 9. Be4 Nf6 10. Nf5 Bf8 11. Bc2 b5 12. cxb5 cxd5 13. Nxd5 Bb7 14. Nxf6+ Qxf6 15. O-O f3 16. Ne3 { Andreassen,E (2325)-Løvholt,T (2225) ICCF 2005 1-0 (45)}) (4... Be6 5. d4 e4 6. d5 Bf7 7. Nd4 {1-0 (7) Kutlu,H (2122)-Pereyra,D (1584) ICCF 2017}) (4... Be7 5. Bg2 Nf6 6. d4 e4 7. Ng5 d5 8. O-O c6 9. Qb3 O-O 10. h4 h6 11. Nh3 dxc4 12. Qxc4+ Rf7 13. Nf4 Bd6 14. Rd1 Nbd7 15. Qb3 Nb6 16. Ng6 {Lagergren,H (1877) -Kuijpers,J ICCF 2020 0-1 (56)}) (4... g6 5. d3 Bg7 6. Bg2 Ne7 (6... Nf6 7. Qc2 O-O 8. Bg5 h6 9. Bxf6 Bxf6 10. h4 c6 11. h5 g5 12. O-O-O Na6 13. Kb1 Be6 14. Nd2 d5 15. cxd5 cxd5 16. Qb3 Nc5 17. Qb4 b6 18. Nb3 {Thompson,E (2014)-Morrell, G (2276) ICCF 2014 0-1 (35)}) 7. O-O O-O 8. Bd2 h6 9. Rb1 g5 10. b4 Ng6 11. Ne1 f4 12. c5 g4 13. Qb3+ Kh7 14. cxd6 cxd6 15. b5 Nd7 16. Ne4 {Nývlt,Z (2415) -Fraga Castro,J ICCF 2010 1-0}) 5. d4 (5. Bg2 c6 6. O-O Na6 (6... Be7 7. d4 e4 8. Nh4 O-O 9. f3 d5 10. fxe4 fxe4 11. Qb3 Qb6 12. Qxb6 axb6 13. cxd5 cxd5 14. Nf5 Bd8 15. Nd6 Be6 16. Bf4 Nc6 17. Nxb7 Be7 18. Nb5 {Docekalová,A (2299) -Scuderi,D (2279) ICCF 2018 0-1 (57)}) 7. d3 {Beavan,R (1943)-Stubbs,M (2086) ICCF 2021}) 5... e4 6. Nh4 g6 (6... Be7 7. Bh3 g6 8. Bh6 Nc6 (8... c6 9. Ng2 d5 10. cxd5 cxd5 11. Bg7 Rg8 12. Bxf6 Bxf6 13. O-O Nc6 14. e3 Be6 15. Nf4 Qd7 16. Re1 Bd8 17. Qb3 Ba5 18. Rec1 Ne7 19. Nxe6 Qxe6 20. Qb5+ {Mollamustafaoglu,O (1740)-Jacques,G ICCF 2016 1-0}) (8... Bd7 9. O-O Bf8 10. Qd2 Nc6 11. f3 Bxh6 12. Qxh6 Qe7 13. Nxg6 Ng8 14. Nxe7 Nxh6 15. Nxc6 Bxc6 16. fxe4 fxe4 17. Rac1 Bd7 18. Bxd7+ Kxd7 19. Rf6 Ng4 20. Rf7+ {Dick,S-Parrott,D (1775) ICCF 2013 1-0 (28)}) 9. O-O Kf7 10. Ng2 b6 11. Nd5 Bf8 12. Bg5 Bg7 13. e3 Ne7 14. Bxf6 Bxf6 15. Nxf6 Kxf6 16. f3 exf3 17. Qxf3 Rb8 18. e4 {Girard,E (2277)-Vertes,A (2280) ICCF 2009 1-0 (63)}) (6... Nc6 7. Ng2 d5 8. e3 Be6 9. Nf4 Qd7 10. Be2 O-O-O 11. Nxe6 Qxe6 12. cxd5 Nxd5 13. O-O h5 14. Bc4 Nce7 15. Bd2 h4 16. g4 Qg6 17. f3 Nxc3 18. bxc3 {Taylor,B (1987)-Egan,M (2281) ICCF 2012 1/2-1/2 (63)}) 7. Bg5 Bg7 8. Ng2 (8. e3 Be6 9. Qb3 (9. Be2 O-O 10. O-O c6 11. Qb3 Qd7 12. Bf4 Bf7 13. Qa3 Rd8 14. c5 dxc5 15. dxc5 Nd5 16. Rad1 Qe8 17. Nxd5 cxd5 18. b4 Nc6 19. b5 Ne5 20. Qb4 Rac8 {Gruber,G (1984)-Häusler,K (2174) ICCF 2012 0-1 (52)}) 9... Qc8 10. Ng2 Nbd7 11. Nf4 Bf7 12. h4 h6 13. Bxf6 Nxf6 14. h5 g5 15. Ng6 Rg8 16. Be2 c6 17. Qa3 Qc7 18. c5 d5 19. b4 Bh8 {Arancibia Guzmán,E (2476)-Diaz,S (2530) ICCF 2012 1/2-1/2 (46)}) 8... h6 9. Bxf6 Qxf6 10. e3 Na6 (10... c6 11. Nf4 Na6 12. h4 h5 13. Be2 Nc7 14. Qb3 Ne6 15. O-O-O O-O 16. Kb1 Kh7 17. Nh3 Qe7 18. f3 exf3 19. Bxf3 Re8 20. Rhe1 Kh8 (20... Qc7 21. Ne2 Rb8 22. Nef4 Bf6 23. Qc2 Qf7 24. Rc1 Nxf4 25. Nxf4 a5 26. Qa4 {1/2-1/2 (26) Girard,E (2366)-Remis Fernández,J (2436) ICCF 2010}) 21. Re2 {1/2-1/2 (21) Girard,E-Pligin,S (2446) ICCF 2009}) 11. Qb3 c6 12. Be2 O-O 13. h4 Nc7 14. Nf4 Ne6 15. O-O-O Kh7 16. Kb1 Qe7 17. Nh3 Bd7 18. Qc2 Rab8 19. Rhg1 h5 20. Rge1 Bh6 21. f4 Bg7 22. Qb3 b6 23. Qa3 a6 24. d5 Nc5 25. Ng5+ Kh6 26. dxc6 Bxc6 27. Rd2 {1/2-1/2 (27) Fischer,D (2350)-Danzanvilliers,P (2280) ICCF 2016 English Opening: 1...e5-2 Nc3}) 4. Qb3 (4. d4 g6 5. dxe5 Nd7 6. Bg5 Be7 7. Bxe7 Qxe7 8. exd6 cxd6 9. Nd4 Ngf6 10. Nxf5 gxf5 11. Nb5 Ne4 12. f3 Qh4+ 13. g3 Nxg3 14. hxg3 Qxh1 15. Qxd6 Rd8 {Sifré Calafat,F (2045)-Sanchez Aguirregomezcorta,X (1426) ICCF 2016 1-0}) 4... b6 5. e4 Be6 6. d4 exd4 7. Nxd4 Qd7 8. Nxe6 Qxe6 9. Nd5 Qd7 10. c5 dxc5 11. Bc4 Bd6 12. Bg5 f6 13. e5 Bxe5 14. O-O-O Qf5 {Vlcek,M (2113)-Martin,N (1930) ICCF 2010 1-0}) (3. b4 Nf6 4. Nf3 Be7 5. e3 O-O 6. Qc2 c6 7. Be2 Bg4 8. O-O a5 9. bxa5 Qxa5 10. Rb1 Qc7 11. h3 Bh5 12. d3 Nfd7 13. d4 Re8 14. Rd1 Nf6 {Daves, D-Brandhorst,W (2268) ICCF 2013 1/2-1/2 (34)}) (3. h3 f6 4. e4 c6 5. Nf3 Ne7 6. Be2 Ng6 7. Qc2 Nf4 8. d3 {1-0 (8) Corrente,O-Newcombe,R ICCF 2017}) (3. d4 exd4 4. Qxd4 Nc6 5. Qd2 (5. Qd1 g6 (5... Be6 6. e3 Nf6 7. Nf3 Be7 8. Be2 O-O 9. O-O a6 10. e4 Ne5 11. Nxe5 dxe5 12. Qxd8 Rfxd8 13. f4 Bc5+ 14. Kh1 exf4 15. Bxf4 Bd4 16. Bxc7 Rdc8 17. Bf4 {Halsey,A-Mokosak,D (1844) ICCF 2008 0-1}) (5... Nf6 6. e4 Be6 7. Nf3 Be7 8. Be2 Qd7 9. O-O h5 10. Bf4 O-O-O 11. Qc2 h4 12. h3 Rdg8 13. Bg5 Ne8 14. Bxe7 Qxe7 15. Nd5 Qd7 16. b4 g5 17. b5 {Dewald,H (1875) -Garlipp,B (1884) ICCF 2010 1-0 (29)}) 6. e4 (6. Nf3 Bg7 7. Bg5 Nf6 8. e3 h6 9. Bxf6 Bxf6 10. Rc1 O-O 11. Be2 b6 12. Qd2 Bxc3 13. Qxc3 Bb7 14. O-O a5 15. Rfd1 Re8 16. b3 Qe7 17. a3 Ne5 {Hildebrand,G (2378)-Pasta,P (2189) ICCF 2020 1/2-1/ 2 (34)}) (6. b3 Bg7 7. Bb2 Nf6 8. Nf3 O-O 9. Qd2 Bf5 10. e3 Ne4 {1/2-1/2 (10) Ott,P (2314)-Stigter,J (2384) ICCF 2020}) (6. g3 Bg7 7. Bd2 (7. Qb3 Rb8 8. Bg2 Bd7 9. Qc2 Nf6 10. Bg5 O-O 11. e4 h6 12. Be3 b6 13. Nge2 Re8 14. O-O-O Ng4 15. h3 Nxe3 16. fxe3 Ne5 17. b3 b5 18. cxb5 Bxb5 {Davis,J (1630)-Wright,D (1613) ICCF 2013 0-1}) 7... Nf6 8. Bg2 Be6 9. b3 O-O 10. Nf3 Qc8 11. O-O Bh3 {0-1 (11) Kendrick,C-Capuzzi,G (1801) ICCF 2011}) 6... Bg7 7. Bd3 Nge7 (7... Nf6 8. Nge2 O-O 9. O-O Nd7 10. Be3 Nc5 11. Bc2 Be6 12. b3 Re8 13. Qd2 a5 14. Nf4 Bd7 15. Rad1 a4 16. Nfd5 axb3 17. axb3 Na5 {0-1 (17) Rovatti,P-Recasens Sánchez,J (2000) ICCF 2008}) 8. Nf3 O-O 9. O-O Bg4 10. h3 Bxf3 11. Qxf3 Ne5 12. Qe2 Nxd3 13. Qxd3 Nc6 14. Be3 Re8 15. f3 a5 16. Rad1 b6 {Rada,H (2344)-Westerman,H (2280) ICCF 2007 1-0 (43)}) (5. Qd3 Nf6 (5... Be7 6. Nd5 Nf6 7. Nf3 Bg4 8. Rg1 Bxf3 9. gxf3 g6 10. Bh6 Ne5 11. Qb3 b6 12. Qa4+ Qd7 13. Nxc7+ Kd8 14. Qxd7+ Kxd7 15. Nxa8 Rxa8 16. b3 Rc8 {0-1 (16) Jimenez Sepulveda,M-Tago,S (1680) ICCF 2017}) 6. Nf3 Nb4 7. Qd1 Bf5 8. Nd4 Bg6 9. a3 Na6 10. Bg5 Be7 11. e3 Nc5 12. Be2 O-O 13. O-O Nce4 14. Nxe4 Nxe4 15. Bxe7 Qxe7 16. Bf3 Rfe8 {Rau,V (1764) -Evans,S (1738) ICCF 2014 1/2-1/2 (27)}) (5. Qe4+ Be6 6. Nf3 Nf6 7. Qh4 Be7 8. Bg5 O-O 9. e3 h6 10. Bxf6 Bxf6 11. Qg3 Bxc3+ 12. bxc3 Qf6 13. Nd4 Na5 14. Rb1 c5 15. Nb5 a6 16. Nxd6 Qxc3+ {Lucena Cifré,R (1676)-Pajak,J (2256) ICCF 2016 0-1}) 5... Nf6 (5... g6 6. b3 a5 7. Nf3 Bg7 8. Bb2 Nf6 9. g3 O-O 10. Bg2 Bf5 11. O-O Ne4 12. Nxe4 Bxb2 13. Qxb2 Bxe4 14. Nh4 Qe7 15. f3 g5 16. fxe4 gxh4 17. Rf4 {Solar,J (2245)-Jakubcin,M (2220) ICCF 2013 0-1 (62)}) (5... Be6 6. b3 (6. e4 g6 7. Bd3 Bg7 8. Nge2 Nf6 9. O-O O-O 10. f4 a5 11. b3 a4 12. f5 Bd7 13. bxa4 Ne5 14. Rb1 Re8 15. Nf4 Bxa4 16. Nfd5 Bc6 17. h3 Nfd7 {Bas Fortuny,M (1846) -Sostaric,D ICCF 2016 0-1 (27)}) 6... g6 (6... a5 7. e4 g6 8. Bd3 Bg7 9. Bb2 Nf6 10. Nge2 O-O 11. O-O Nd7 12. Rad1 Re8 13. Bb1 Nc5 14. Nb5 Bxb2 15. Qxb2 Bd7 16. Nec3 Ne5 17. f4 Ng4 18. Rfe1 {Dannehr,J (2284)-Kiupel,H (2268) ICCF 2017 1-0}) 7. Bb2 Bg7 8. O-O-O Nge7 9. Ne4 Ne5 10. Nf3 O-O 11. Nxe5 Bxe5 12. Bxe5 dxe5 13. Nf6+ {1-0 (13) Di Pietro,R (1637)-Nanni,M ICCF 2013}) 6. b3 (6. g3 Be6 7. Nd5 Ne5 8. b3 (8. e3 c6 9. Nxf6+ Qxf6 10. f4 Nxc4 11. Bxc4 Bxc4 12. Nf3 Bd5 13. O-O Be7 14. Qc2 Qe6 15. Ng5 Bxg5 16. fxg5 O-O 17. Bd2 Qe5 18. Rf4 Qxg5 19. e4 Qg6 {Lisý,J (1947)-Pasta,P (2119) ICCF 2016 0-1 (34)}) 8... Ne4 9. Qd4 (9. Qe3 Nc5 10. Bg2 c6 11. Nf4 g6 12. Nxe6 Nxe6 13. Bd2 Ng4 14. Qf3 Bg7 15. Rd1 Ne5 16. Qc3 O-O 17. Nf3 f5 18. O-O f4 19. Bh3 Nxf3+ 20. Qxf3 Ng5 {Gilbert,C (2225) -Kireev,V (2101) ICCF 2011 1/2-1/2 (34)}) 9... Nc5 10. Bg2 c6 11. Nf4 Be7 12. Nxe6 Nxe6 13. Qd2 Bf6 14. Bb2 Qb6 15. Rb1 Ng4 16. e3 Bxb2 17. Rxb2 Rd8 { Juárez de Vena,A (1940)-McElroy,W (1935) ICCF 2012 1-0 (26)}) (6. Nf3 Be6 (6... Be7 7. b3 Be6 (7... O-O 8. Bb2 Bf5 9. e3 Ne4 10. Nxe4 Bxe4 11. Bd3 Bxd3 12. Qxd3 Bf6 13. Qd2 Re8 14. O-O a5 15. Rfd1 {1/2-1/2 (15) Hechl,G (2184) -Mohanakrishnan,B (2121) ICCF 2015}) 8. e4 Nd7 9. Be2 O-O 10. O-O Bf6 11. Ba3 a5 12. Rae1 Re8 13. Nd5 Bg4 14. h3 Bxf3 15. Bxf3 Bg5 16. Qc3 Bf6 17. Nxf6+ Qxf6 18. Qc1 {Díaz,H (2237)-Giesel,M (2253) ICCF 2018 1/2-1/2 (29)}) (6... g6 7. b3 Bg7 8. Bb2 O-O 9. g3 Bf5 10. Nh4 Be6 11. Bg2 a5 12. O-O a4 13. Nd5 Re8 14. Rad1 axb3 15. axb3 Ne5 16. Ra1 Rxa1 17. Rxa1 c6 18. Nxf6+ {Frijling,J (2270) -Sánchez de Ybargüen Gutiérrez,L (2261) ICCF 2017 1/2-1/2}) (6... a5 7. e4 Be7 8. Nd4 Nxd4 9. Qxd4 O-O 10. Be2 Re8 11. O-O Nd7 12. Be3 Bf6 13. Qd2 Bxc3 14. Qxc3 Rxe4 15. Rae1 Nf6 16. Bf3 Re6 17. h3 c6 18. Re2 {Rulfs,E (2088)-Blondel,F (1978) ICCF 2014 1-0 (79)}) 7. e4 g6 8. Be2 Bg7 9. Qc2 O-O 10. O-O Nd7 11. Be3 Nde5 12. Nd2 Qh4 13. Nd5 Rac8 14. h3 a5 15. a3 f5 16. f4 Nf7 17. Nf3 Qd8 { Jansen,U (2142)-Lanin,B (2083) ICCF 2014 1-0 (43)}) 6... a5 (6... Be7 7. Bb2 ( 7. g3 O-O 8. Bg2 Ne5 9. f4 Nc6 10. Nf3 Be6 11. e4 Qc8 12. f5 Bd7 13. Bb2 Re8 14. a3 Na5 15. Qc2 Rb8 16. a4 Ng4 17. Nd5 Bf8 18. Kd2 Ne5 {Tanner,A (1724) -Ryan,R (1857) ICCF 2013 1/2-1/2 (57)}) 7... Bf5 8. f3 O-O 9. e4 Bg6 10. Nh3 h6 11. Be2 Qd7 12. O-O Rad8 13. Nf4 Bh7 14. Nfd5 Rfe8 15. Rad1 Ne5 16. Nxf6+ Bxf6 17. Nd5 Be7 18. Bxe5 {Turner,B (1988)-Ryan,R (1768) ICCF 2017 1-0}) (6... Bf5 7. f3 Be7 8. e4 Bg6 9. Bb2 Qd7 10. Nh3 h6 11. Nf4 Bh7 12. Nfd5 Nxd5 13. Nxd5 f6 14. Be2 O-O-O 15. O-O Bf8 16. b4 Ne7 17. a4 Nxd5 18. cxd5 {Salmon,G-Ryan,R (1666) ICCF 2020 1-0}) (6... g6 7. Bb2 Bg7 8. g3 O-O 9. Bg2 (9. Nh3 a5 10. Bg2 Ne5 11. Rc1 Re8 12. O-O Bd7 13. Nf4 a4 14. h3 h5 15. Rfd1 axb3 16. axb3 Bc6 17. Nfd5 Ned7 18. Qc2 Nf8 19. e3 Nxd5 20. cxd5 Bd7 {Santos Etxepare,A (1557) -Recasens Sánchez,J (2000) ICCF 2008 1/2-1/2 (44)}) 9... Re8 10. Nh3 (10. Nf3 Bf5 11. Nh4 Be6 12. O-O Nd7 13. Nf3 Nc5 14. Ng5 a5 15. Nxe6 fxe6 16. Nb5 Bxb2 17. Qxb2 Ne5 18. Rad1 Qe7 19. a3 Rab8 20. f4 Nf7 21. b4 axb4 {Melander,B (2232) -Pedersen,S (2423) ICCF 2007 1-0 (35)}) 10... d5 11. Nxd5 Bxh3 12. Bxh3 Ne4 13. Qc1 Nd4 14. e3 c6 15. Nf4 Nd2 16. Bc3 Ne4 17. Bb2 Nd2 18. Bc3 {Grohde,W (2501) -Read,M (2569) ICCF 1999 1/2-1/2}) (6... Be6 7. e4 g6 8. Bb2 Bg7 9. Bd3 O-O 10. Nge2 Nd7 11. Rd1 Nc5 12. Bb1 a5 13. Nd5 Bxd5 14. Bxg7 Bxe4 15. Bxf8 Bxg2 16. Rg1 Ne5 17. Nd4 Bf3 18. Bh6 {Merrell,W (2294)-Pohjosmäki,R (2291) ICCF 2016 0-1 (55)}) 7. Bb2 (7. e3 g6 8. Nf3 Bg7 9. Bb2 O-O 10. Be2 Bf5 (10... Re8 11. O-O Ne4 12. Nxe4 Bxb2 13. Nxd6 Qxd6 14. Qxb2 Bg4 15. h3 Bxf3 16. Bxf3 Ra7 17. Rad1 Qe5 18. Qxe5 Nxe5 19. Be2 c5 20. Rd5 b6 21. Rfd1 Re6 22. Rd6 {Vernon, B-Fuller,T (1694) ICCF 2015 1-0 (39)}) 11. O-O Re8 12. Rac1 a4 13. h3 axb3 14. axb3 Ne4 15. Nxe4 Bxe4 16. Ra1 Qe7 17. Bc3 h6 18. Qb2 Ne5 {Gibbons,R (2361) -Noble,M (2562) ICCF 2011 1/2-1/2 (32)}) (7. e4 a4 (7... Be6 8. Bb2 a4 9. Rd1 axb3 10. axb3 Be7 11. Bd3 O-O 12. Nge2 Nd7 13. Nd5 Nce5 14. O-O Bxd5 15. cxd5 Nxd3 16. Qxd3 Bf6 17. Bxf6 Qxf6 18. b4 Qb2 19. Rb1 {Grego,L (2026)-Cayolla Ribeiro,D ICCF 2009 1/2-1/2 (50)}) 8. Rb1 axb3 9. axb3 g6 10. g3 Bg7 11. Bg2 O-O 12. Nge2 Ne5 13. f4 Ned7 14. O-O Re8 15. b4 Qe7 16. Nd4 c6 17. h3 Nb6 18. Qd3 Be6 {Morley,P (2277)-Boschma,B (2350) ICCF 2008 1/2-1/2}) (7. Nf3 Bg4 8. g3 g6 9. Bb2 Bg7 10. Qe3+ Qe7 11. Nd5 Nxd5 12. Qxe7+ Ndxe7 13. Bxg7 Rg8 14. Bc3 d5 15. Bg2 a4 16. O-O O-O-O 17. Rfe1 Bxf3 18. exf3 d4 {Caressa,M (2123)-Peschardt, S (2154) ICCF 2009 1/2-1/2 (29)}) 7... a4 8. Nd5 (8. Rd1 axb3 9. axb3 g6 (9... Be6 10. Nf3 g6 11. e3 Bg7 12. Be2 O-O 13. O-O Qe7 14. Rfe1 Rfe8 15. Nd4 Nxd4 16. exd4 Qd8 17. Bf3 Bf5 18. Rxe8+ Qxe8 19. Re1 Qd7 20. h3 h5 21. Qd1 { Giannetto,S (2323)-Bonoldi,F (1949) ICCF 2012 1-0 (53)}) 10. e3 (10. e4 Bg7 11. Bd3 Nd4 (11... O-O 12. Nge2 Nd7 13. O-O Nc5 14. Bc2 Nb4 15. Na4 Bxb2 16. Nxb2 Qf6 17. Na4 Nxa4 18. Qxb4 Nc5 19. Qc3 Qxc3 20. Nxc3 Na6 21. Rd2 Kg7 22. f3 Nb4 23. Rc1 {Löschnauer,R (2460)-Reinstadler,B (2262) ICCF 2017 1-0 (70)}) 12. Bc2 Nxc2+ 13. Qxc2 O-O 14. Nge2 Ng4 15. O-O f5 16. h3 Nh6 17. Nb5 Bxb2 18. Qxb2 fxe4 19. Ng3 Nf5 20. Nxe4 b6 21. Nbc3 Bb7 {Troia,E (2100)-Kroll,O (2244) ICCF 2011 1/2-1/2 (42)}) (10. Nf3 Bg7 11. e3 (11. g3 O-O 12. Bg2 Nd7 13. Na4 Nc5 14. Nxc5 dxc5 15. Bxg7 Kxg7 16. Qc3+ Qf6 17. Qxf6+ Kxf6 18. Nd2 Ke7 19. Bxc6 bxc6 20. O-O Bf5 21. Ra1 Bc2 22. f4 Rxa1 {Klatt,O (2450)-Boschma,B (2453) ICCF 2009 1/2-1/2}) 11... O-O 12. Be2 Nd7 13. Na4 Nf6 14. O-O Na5 15. Qc2 Bf5 16. Bd3 Bxd3 17. Rxd3 Nc6 18. Rd2 Re8 19. Nc3 Nb4 20. Qc1 c6 21. h3 d5 {Seric,A (2376) -Mehlhorn,U (2359) ICCF 2020 1/2-1/2 (26)}) 10... Bg7 11. Be2 {1/2-1/2 (11) Vuillemin,G (2097)-Merrheim,X (2039) ICCF 2019} (11. Nge2 O-O 12. Nc1 Qe7 13. Bd3 Rd8 14. O-O d5 15. Nxd5 {1/2-1/2 (15) Tomilin,A (1938)-Bourgault,J (1966) ICCF 2020})) 8... Be7 (8... axb3 9. axb3 Rxa1+ 10. Bxa1 Ne5 11. e3 Be7 12. Nxe7 Qxe7 13. Qc2 b6 14. Nf3 Nxf3+ 15. gxf3 O-O 16. Rg1 Rd8 17. Bd3 h6 18. Ke2 Bb7 19. Bc3 Kf8 20. Qb2 {Johansen,A (2372)-Mehlhorn,U (2359) ICCF 2020 1/2-1/2 (28) }) 9. Nf3 (9. e3 Bf5 10. Nf3 a3 11. Bxf6 Bxf6 12. Rd1 O-O 13. Bd3 Bxd3 14. Qxd3 Ne5 15. Nxf6+ Qxf6 16. Nxe5 Qxe5 17. O-O b6 {1/2-1/2 (17) Caressa,M (2123) -Pyrich,G (2254) ICCF 2009}) 9... O-O 10. e3 a3 11. Bc3 (11. Bxf6 Bxf6 12. Rd1 Bb2 13. Be2 Re8 14. O-O Bf5 15. h3 g6 16. Rfe1 Be4 17. Rf1 Bf5 18. Kh2 Be4 19. g3 Bg7 20. Ne1 Ne5 21. Nc3 Bc6 22. Nd5 h5 {Biedermann,T (2487)-Caron,S (2433) ICCF 2018 1/2-1/2 (76)}) 11... Ne4 12. Qc2 Nxc3 13. Qxc3 Re8 14. Be2 Bf8 15. Rd1 Nb8 16. O-O c6 17. Nf4 g6 18. b4 Nd7 19. h3 Bh6 20. Rfe1 Nb6 21. c5 Bxf4 22. exf4 Nd5 23. Qb3 dxc5 24. Bc4 cxb4 25. Bxd5 cxd5 26. Qxb4 Rxe1+ 27. Rxe1 b6 28. Re3 Bb7 29. Rd3 Qc7 30. Rc3 Qd8 31. Qd4 Rc8 32. Rxa3 Rc4 33. Qd2 Qd6 34. Rb3 Qc5 35. f5 d4 36. fxg6 hxg6 37. Qf4 Bd5 38. Rd3 Qc7 39. Qxc7 Rxc7 40. Rxd4 Bxa2 {1/2-1/2 (40) Zawadski,A (2214)-Biedermann,T (2455) ICCF 2017 English Opening: 1...e5-2 Nc3}) 3... g6 (3... Be6 4. Bg2 (4. Qb3 Qc8 5. Bg2 c6 6. d3 Be7 7. f4 Nf6 8. Nf3 Nbd7 9. Qc2 O-O 10. Ng5 exf4 11. Nxe6 fxe6 12. Bxf4 Qe8 13. O-O Qh5 14. Bf3 Ng4 15. e3 Qg6 {Dolya,A (2361)-Kharitonov,A (2300) ICCF 2012 1/2-1/2}) 4... c6 (4... g6 5. Bxb7 Nd7 6. Bxa8 Qxa8 7. e4 Bxc4 8. d3 Be6 9. Nb5 Qc6 10. a4 d5 11. exd5 Bxd5 12. f3 Ngf6 13. Nxa7 Qb7 14. Nb5 Bb4+ 15. Bd2 Bc5 16. b4 {Tupper,A-Slupski,M ICCF 2011 1-0}) 5. d3 Nf6 (5... f5 6. f4 Nf6 7. Nf3 Be7 8. fxe5 dxe5 9. Nxe5 Bc5 10. Nf3 O-O 11. d4 Bb4 12. Qd3 a6 13. Ng5 Qe7 14. O-O Bxc3 15. Nxe6 Bxd4+ 16. Nxd4 c5 17. Nxf5 {Elisei,B (1923)-Parente, M (1642) ICCF 2015 1-0 (35)}) (5... Be7 6. e4 h6 7. Nf3 Bg4 8. h3 Bh5 9. Be3 Nf6 10. Qd2 Nbd7 11. a3 O-O 12. Nh4 b6 13. Nf5 Nh7 14. Bxh6 Ng5 15. Nxe7+ Qxe7 16. Bxg5 f6 17. Be3 {Savoya,A-Sánchez Villacanas,J ICCF 2007 1-0 (40)}) (5... Nd7 6. e4 Ngf6 7. Nf3 h6 8. O-O Be7 9. b3 O-O 10. d4 Qc7 11. h3 Nb6 12. Be3 Rad8 13. Qc2 Rfe8 14. a4 exd4 15. Nxd4 Bc8 16. a5 Nbd7 17. Nf5 {Dearnley,A (2342)-Poole,T ICCF 2012 1-0 (35)}) 6. Nf3 h6 7. O-O Be7 8. Rb1 (8. b3 O-O 9. Bb2 Nbd7 (9... Qc7 10. Rc1 c5 11. e3 Nc6 12. d4 cxd4 13. exd4 e4 14. Nd2 Bg4 15. Qe1 Nb4 16. Ndxe4 Qd7 17. Qd2 Nxe4 18. Nxe4 Na6 19. Rfe1 d5 20. cxd5 Bb4 21. Bc3 {Lerenard,D-Fermen,G (1777) ICCF 2015 1-0}) 10. e4 a6 11. d4 b5 12. c5 Qc7 13. cxd6 Bxd6 14. h3 b4 15. Na4 Rfe8 16. Rc1 Rad8 17. d5 Nxd5 18. exd5 Bxd5 19. Qc2 g6 {Slawinski,T (2384)-Kirsner,D ICCF 2009 1-0 (37)}) 8... O-O 9. b4 Qc7 10. b5 Nbd7 11. Ba3 c5 12. Nd2 Rad8 13. e4 b6 14. Bb2 g5 15. f4 {Elisei,B (1894)-Jakobi,W (1634) ICCF 2016 1-0}) (3... Be7 4. Bg2 f5 5. d3 (5. e3 c6 6. d4 Nf6 7. Nge2 O-O 8. O-O Na6 9. b3 e4 10. d5 Ng4 11. Qd2 Ne5 12. f4 exf3 13. Bxf3 Bd7 14. Bg2 Nc5 15. Ba3 (15. Nf4 Rf7 16. Rb1 Qf8 17. Ba3 g5 18. Bxc5 dxc5 19. Nd3 Nxd3 20. Qxd3 Bf6 21. Rbd1 Re8 22. Na4 Be5 23. dxc6 bxc6 24. Qc2 Re6 25. Bh3 Ref6 26. Nb2 Rh6 {Berchtold,C (2317)-Doppelhammer,H ICCF 2013 0-1 (50)} ) 15... Qa5 16. Bxc5 dxc5 {Nývlt,Z (2425)-Williamson,H (2529) ICCF 2018 1/2-1/ 2 (34)}) 5... c6 6. Nf3 a5 7. O-O Nf6 8. Na4 O-O 9. Qc2 Na6 10. a3 Rb8 11. Bd2 b5 12. cxb5 cxb5 13. Nc3 Kh8 14. Rfb1 Qe8 15. b4 {Moran,R (1776)-Sazonov,N (1726) ICCF 2020 1/2-1/2}) (3... f5 4. d3 (4. Bg2 Nc6 (4... Nf6 5. d4 (5. d3 Be7 (5... c6 6. Nf3 Be7 7. a3 (7. O-O a5 8. c5 Na6 9. cxd6 Bxd6 10. Bg5 h6 11. Bd2 Be6 12. e4 fxe4 13. Nxe4 Nxe4 14. dxe4 Qc7 15. Bxa5 Qe7 16. Nh4 Rg8 17. Ng6 Qd7 18. Nxe5 Qe7 {Frágola,H (1835)-De Virgilio,O (1723) ICCF 2014 1-0}) 7... a5 8. O-O O-O 9. c5 Kh8 10. Qc2 Be6 11. cxd6 Qxd6 12. Rd1 Qc7 13. d4 e4 14. Bf4 Bd6 15. Ng5 Bg8 16. Bxd6 Qxd6 17. f3 {Linden,W (1919)-Blondel,F (1997) ICCF 2015 1/2-1/2 (41)}) (5... g6 6. e4 (6. d4 exd4 7. Qxd4 Nc6 (7... Bg7 8. c5 Nc6 9. Qa4 O-O 10. cxd6 Qxd6 11. Bf4 Qe7 12. Nf3 Qb4 13. O-O Qxa4 14. Nxa4 Nd5 15. e3 Re8 16. Rad1 {Cronjé,H (2094)-Sadler,C (2338) ICCF 2017 1/2-1/2 (34)}) 8. Qe3+ Ne5 9. h3 Qe7 10. b3 Bg7 11. Bb2 O-O 12. f4 Nc6 13. Qxe7 Nxe7 14. Nb5 Ne8 15. Bxg7 Kxg7 16. Kf2 a6 17. Nc3 Nf6 {Morley,P (2277)-Danzanvilliers,P (2315) ICCF 2008 1/2-1/2 (25)}) (6. Nf3 Bg7 7. O-O O-O 8. b4 h6 (8... e4 9. dxe4 Nxe4 10. Nxe4 fxe4 11. Bg5 Qe8 12. Nd2 a5 13. b5 Bf5 14. h3 Qe5 15. Rc1 Nd7 16. e3 Nc5 17. Bf4 Qe7 18. g4 g5 19. Bxd6 Qxd6 {Konstantinov,M (2320)-Jensen,C (2376) ICCF 2014 1/2-1/2}) (8... a5 9. b5 Nbd7 10. Ba3 Re8 11. Rc1 Rb8 12. Re1 Bh6 13. e3 b6 14. Qc2 Bb7 15. Rcd1 Nf8 16. e4 Qd7 17. d4 exd4 18. Nxd4 Bxe4 19. Nxe4 Nxe4 20. Nc6 {Frömbgen,A (2154)-Rose,S (2162) ICCF 2020 1/2-1/2 (39)}) 9. Bb2 Nc6 10. b5 Ne7 11. e3 Be6 12. Nd2 c6 13. Qc2 Qd7 14. a4 Rfd8 15. a5 Kh7 16. Ba3 Rab8 17. Rab1 c5 {Westera,B (2432)-Vegjeleki,A (2192) ICCF 2012 1-0 (43)}) 6... c6 (6... Bg7 7. Nge2 (7. exf5 gxf5 8. Nf3 Nc6 (8... c5 9. O-O Nc6 10. Rb1 O-O 11. Re1 Qe8 12. a3 Qh5 13. Nh4 Qxd1 14. Rxd1 Nd4 15. b4 f4 16. bxc5 f3 17. Bh1 dxc5 18. Be3 {Peschke,I (2198)-Neves,B (2051) ICCF 2012 1/2-1/2 (48)}) 9. O-O O-O 10. Re1 Bd7 11. Rb1 a5 12. Bg5 h6 13. Bh4 Be8 14. Qd2 {1-0 (14) Panarello, G (2032)-Rizza,F (2100) ICCF 2015}) 7... O-O 8. exf5 gxf5 9. Bg5 Nbd7 10. Qd2 Re8 11. h3 Nb6 12. g4 f4 13. O-O-O Qe7 14. b3 Qf7 15. d4 Nfd7 16. Bf3 c6 17. Ne4 Qf8 18. d5 {Vanosmael,A (2515)-Berclaz,P (2480) ICCF 2001 1-0 (56)}) 7. Nf3 (7. Nge2 Bg7 8. O-O O-O (8... Be6 9. exf5 gxf5 10. Qb3 Qd7 11. d4 Bf7 12. dxe5 dxe5 13. Bg5 Be6 14. Rad1 Qc7 15. Nf4 exf4 16. Rfe1 O-O 17. Rxe6 fxg3 18. hxg3 Kh8 19. Qa3 Na6 20. Re7 {Hoffmeyer,F-Pates,C (1774) ICCF 2015 1-0 (34)}) 9. Bg5 h6 10. Be3 Be6 11. Qb3 Qc8 12. d4 f4 13. gxf4 Bh3 14. dxe5 Bxg2 15. c5+ Kh7 16. exf6 Bf3 17. f5 Bxf6 18. Bf4 gxf5 {Kuhn,C-Dempster,D (1743) ICCF 2010 1-0 (33)} ) 7... Bg7 8. O-O O-O 9. c5 Na6 10. cxd6 Qxd6 11. d4 fxe4 12. Nxe5 Be6 13. Bxe4 Rad8 14. Bg2 Qxd4 15. Qxd4 Rxd4 16. Be3 Rb4 17. Nd3 {Perini,G (2006)-Jones,M (2168) ICCF 2010 1-0 (33)}) (5... Nc6 6. e3 Be7 7. Nge2 O-O 8. O-O Bd7 9. Nd5 Nh5 10. Nec3 Bg5 11. Qxh5 Be8 12. Qe2 a6 13. f4 Bf6 14. Nxf6+ Rxf6 15. fxe5 dxe5 16. e4 f4 17. gxf4 {Sakienko,V-Humphreys,B ICCF 2013 1-0}) 6. e3 (6. e4 c6 (6... O-O 7. h3 fxe4 8. dxe4 a6 9. b3 b5 10. Nf3 c5 11. Nd5 Kh8 12. O-O Nc6 13. Bd2 Be6 14. Qe2 Rb8 15. Qd3 Bd7 16. Rfb1 Qe8 17. a4 Nxd5 18. cxd5 {Petkov,S (2386)-Stigter,J (2305) ICCF 2017 1/2-1/2 (35)}) (6... Nc6 7. Nge2 O-O 8. O-O Bd7 (8... Qe8 9. Nd5 Bd8 10. Bd2 Nxd5 11. cxd5 Ne7 12. Qb3 Qh5 13. Rae1 b6 14. d4 Ng6 15. dxe5 Nxe5 16. Nf4 Qf7 {Herriot,B (2191)-Milnes,A (2262) ICCF 2013 1-0}) 9. Nd5 Nxd5 10. cxd5 Nd4 11. Nxd4 exd4 12. Qb3 Rb8 13. e5 Kh8 14. e6 Be8 15. Qc4 Bf6 16. Re1 Rc8 17. Qb3 Rb8 18. Qc4 {Philpott,J-Parrott,D (1783) ICCF 2012 1/2-1/2}) (6... fxe4 7. Nxe4 (7. dxe4 O-O 8. Nge2 c6 9. O-O Be6 10. b3 a6 (10... Nbd7 11. h3 a6 12. a4 Nc5 13. Be3 Nxb3 14. Qxb3 b5 15. Qc2 Bxc4 16. Nd1 c5 17. Ndc3 Qd7 18. g4 Rab8 19. Rfb1 Be6 20. axb5 axb5 21. Ng3 b4 22. Nd5 { Johansen,A (2165)-Geryk,M (2126) ICCF 2015 1-0 (38)}) 11. a4 a5 12. Kh1 Na6 13. f4 Qb6 14. Rb1 Ng4 15. f5 Bf7 16. Qd3 Bh5 17. Qf3 Nf6 18. Qe3 Qxe3 {Montgomery, R (2290)-Goodwin,B (2038) ICCF 2011 1-0 (52)}) 7... O-O 8. Ne2 Nxe4 9. Bxe4 c6 10. O-O Bg4 11. Qc2 Na6 12. Bg2 Nb4 13. Qd2 a5 14. a3 Na6 15. Qc2 Bg5 16. Bxg5 Qxg5 17. Nc3 Nc7 18. Ne4 {Lorenz,R (2214)-Lauer,R (2260) ICCF 2013 1-0 (50)}) 7. Nge2 (7. Nf3 h6 8. O-O fxe4 9. Nxe4 Bg4 10. h3 Be6 11. Qe2 Nbd7 12. d4 O-O 13. dxe5 Nxe4 14. Qxe4 dxe5 15. Rd1 Qc7 16. Nd4 Bxc4 17. Nf5 {Deacon,G (1718) -Laguerta,C (1670) ICCF 2020 1-0 (35)}) 7... O-O 8. O-O Na6 (8... Qe8 9. b3 Qh5 (9... a5 10. Bb2 Na6 11. d4 fxe4 12. Nxe4 Nxe4 13. Bxe4 Qh5 14. Nc3 Bg4 15. f3 Bh3 16. Rf2 exd4 17. Qxd4 Bf6 18. Qd2 Nc5 19. Re1 Rae8 20. Bc2 {1-0 (20) Tibbert,P (1678)-Graham,S ICCF 2019}) 10. f3 fxe4 11. dxe4 Na6 12. Be3 Be6 13. Qd2 Nc5 14. Rad1 a5 15. Nc1 Nfd7 16. Nd3 Nxd3 17. Qxd3 Nc5 18. Qe2 h6 19. Rd2 Rad8 20. Rfd1 {Groth,K (2302)-De Carlos Arregui,I (2336) ICCF 2014 1/2-1/2 (34) }) (8... a5 9. d4 (9. h3 Na6 10. Be3 fxe4 11. dxe4 Be6 12. b3 Nc5 13. f4 Bf7 14. Bxc5 dxc5 15. fxe5 Nd7 16. Rxf7 Kxf7 17. e6+ Kxe6 18. Nf4+ Kf7 19. Qg4 Qc7 20. Rf1 Ke8 {Rice,P (2343)-Wedel,L (2301) ICCF 2020 1/2-1/2 (35)}) 9... Na6 10. Be3 Qe8 11. Qd2 Qh5 12. f3 fxe4 13. Nxe4 Nxe4 14. fxe4 Bg4 15. Rae1 Rxf1+ 16. Bxf1 Rf8 17. d5 Rxf1+ 18. Kxf1 Qxh2 19. Ng1 Qxg3 20. Qf2 {Sharpe,S (2079)-Egan, M (2281) ICCF 2012 1/2-1/2 (36)}) 9. h3 (9. d4 Qe8 10. d5 fxe4 11. Bg5 Qf7 12. Bxf6 gxf6 13. Bxe4 f5 14. Bg2 Bd7 15. a3 Kh8 16. Kh1 Rg8 17. b4 Nc7 18. Rc1 Rg7 19. dxc6 Bxc6 20. Nd5 Nxd5 {Vecek,M (2305)-Bröker,C (2331) ICCF 2014 1/2-1/2 (31)}) (9. b3 Be6 (9... fxe4 10. Nxe4 Be6 11. Qd2 d5 12. cxd5 cxd5 13. Nxf6+ Bxf6 14. Bb2 Qb6 15. d4 e4 16. f3 Bf5 17. fxe4 Bxe4 18. Nf4 Nc7 19. Rae1 Rae8 20. Qc3 Bxg2 21. Kxg2 {Benes,J (2217)-Thoma,O (2234) ICCF 2017 1/2-1/2 (26)}) 10. exf5 Bxf5 11. d4 Nb4 12. Ba3 a5 {0-1 (12) Savoya,A-Putman,M ICCF 2007}) 9... fxe4 (9... Qe8 10. exf5 (10. Bg5 h6 11. Bxf6 Bxf6 12. d4 exd4 13. Nxd4 Qe5 14. Nxf5 Bxf5 15. exf5 Qxf5 16. Rc1 Rad8 17. Qd2 Nc5 18. b4 Bxc3 19. Qxc3 Nd3 20. Rcd1 Nxf2 21. Rd2 Nxh3+ {Petty,K (1843)-Shannon,P (1934) ICCF 2017 1-0 (28) }) 10... Bxf5 11. g4 Be6 12. f4 exf4 (12... Rd8 13. Be3 (13. Ng3 exf4 14. Bxf4 Qd7 15. Qe2 d5 16. d4 Rde8 17. g5 Ne4 18. cxd5 cxd5 19. Ncxe4 dxe4 20. Be5 Bd6 21. Rxf8+ Rxf8 22. Bxd6 Qxd6 23. Qe3 Rd8 24. Rd1 Bxa2 {Leal,P (2387)-Manduch,M (2371) ICCF 2016 1/2-1/2 (50)}) 13... Bxg4 14. hxg4 Nxg4 15. Rf3 Nxe3 16. Rxe3 exf4 17. Rh3 Nc7 18. Kh1 Ne6 19. Ng1 g6 20. Qg4 Qd7 21. Rf1 Ng5 22. Qxd7 Rxd7 23. Rh2 Bd8 24. Nf3 {Morrell,T (2341)-Shchemelev,P (2326) ICCF 2019 1-0 (58)}) 13. Nxf4 Bf7 14. Be3 Bd8 (14... h6 15. Qb3 Qd7 16. d4 Rae8 17. d5 Nc5 18. Qc2 Bd8 19. Bf2 Ba5 20. Bd4 Bxc3 21. bxc3 Nce4 22. Rfe1 cxd5 23. cxd5 Nc5 24. Qf5 Qd8 25. g5 hxg5 26. Qxg5 {Tienhoven,R (2389)-Burke,P (2287) ICCF 2011 1-0 (53)} ) 15. Qd2 Bb6 16. Bxb6 axb6 17. b3 Qd7 18. d4 Nc7 19. d5 Rfe8 20. Na4 Ra6 21. Qf2 {Siewert,M (2291)-Boschma,B (2341) ICCF 2011 1-0 (59)}) (9... Kh8 10. Rb1 fxe4 11. dxe4 Be6 12. b3 Qd7 13. g4 Ng8 14. Be3 b6 15. f4 exf4 16. Nxf4 Rad8 17. Nxe6 Rxf1+ 18. Qxf1 Qxe6 {1/2-1/2 (18) Epinoux,J (2111)-Boschma,B (2268) ICCF 2015}) 10. dxe4 Nc5 (10... Be6 11. b3 Qd7 12. Kh2 b5 13. cxb5 cxb5 14. Bb2 b4 15. Nd5 Nc5 16. f4 Rac8 17. Nxe7+ Qxe7 18. fxe5 {1/2-1/2 (18) Datler,W (2384)-Bell,A (2319) ICCF 2010}) 11. f4 Be6 12. b3 exf4 (12... b5 13. cxb5 cxb5 14. g4 a5 15. g5 Nfd7 16. f5 {1-0 (16) Clarke,J (2086)-Hoeher,C (2113) ICCF 2015}) 13. gxf4 Qd7 14. Kh2 Bd8 15. Be3 Qe7 16. Bd4 Nh5 17. Qd2 Bc7 {Mercadal Benejam,J (2391)-De Carlos Arregui,I (2363) ICCF 2015 1/2-1/2 (47)}) (6. Nf3 O-O 7. O-O (7. b4 a5 8. b5 Nbd7 9. O-O Qe8 10. Qc2 Qh5 11. Ba3 f4 12. Nd5 { 0-1 (12) Slinger,A (2342)-Wharrier,J (2318) ICCF 2008}) 7... Qe8 (7... a5 8. a3 (8. b3 Na6 9. Bb2 Qe8 10. e3 c6 11. Nd2 Be6 12. Qe2 Qg6 13. f4 Rae8 14. Nf3 e4 15. Nd4 exd3 16. Qxd3 Nc5 17. Qd2 Bd8 18. Rad1 Rf7 19. a3 Bb6 {Walther,J (2212) -Wedel,L (2203) ICCF 2019 1/2-1/2 (31)}) 8... Qe8 9. Qc2 (9. d4 e4 10. Ng5 h6 11. Nh3 Qf7 12. f3 Qxc4 13. Nf4 Nc6 14. e3 g5 15. Ng6 Rf7 16. fxe4 fxe4 17. d5 Bg4 18. Qd2 Bh5 19. b3 Qxb3 20. Rb1 Qc4 {Piacenti,L (2316)-Stigter,J (2362) ICCF 2019 1/2-1/2 (43)}) 9... h6 10. Be3 Nc6 11. Nb5 Bd8 12. b3 Qh5 13. Bd2 f4 14. gxf4 Bh3 15. Rac1 Ng4 16. d4 Rf6 17. Bxh3 Qxh3 18. Qe4 Ne7 19. fxe5 { Benes,J (2048)-Binas,J (2180) ICCF 2015 0-1 (45)}) (7... c6 8. b4 Na6 (8... Qe8 9. b5 Nbd7 10. bxc6 bxc6 11. Rb1 Kh8 12. Qc2 a5 13. Na4 Ra6 14. Bb2 c5 15. Bc1 Bd8 16. Nc3 Ng8 17. Nb5 Ndf6 18. e3 Ne7 19. Nd2 Bd7 20. Bb2 {Abolins-Abols,D (2076)-Jensen,K (2198) ICCF 2016 0-1 (28)}) (8... h6 9. Rb1 Qe8 10. b5 c5 11. a4 Kh8 12. Qc2 a5 13. e3 Qf7 14. Bb2 Nbd7 15. Nd2 Nb6 16. Rbe1 Re8 17. f4 exf4 18. exf4 Bd8 19. Rxe8+ Qxe8 20. Rf2 {Ballard,D (2045)-Oaker,W (2246) ICCF 2008 1-0 (28)}) (8... a6 9. a4 Kh8 10. Ba3 Be6 11. b5 Qc7 12. bxc6 bxc6 13. a5 Nbd7 14. Qa4 Rfc8 15. Rfb1 Rab8 16. e4 g6 17. Ng5 Bg8 18. exf5 gxf5 19. Nf3 Nh5 20. Ne1 {Klewe,W (2195)-Jensen,K (2198) ICCF 2016 1/2-1/2 (47)}) 9. Rb1 Nc7 10. b5 (10. a4 Rb8 11. a5 e4 12. Nd4 d5 13. Qb3 Kh8 14. Rd1 Qe8 15. Bf4 Bd8 16. cxd5 cxd5 17. Ndb5 Qf7 18. Nxc7 Bxc7 19. Bxc7 Qxc7 20. Nxd5 Qe5 21. Nxf6 Rxf6 { Stuttard,T-Humphreys,S (2072) ICCF 2012 1-0}) 10... Bd7 (10... c5 11. e3 Bd7 12. a4 Qe8 13. a5 Rb8 14. Bb2 Bd8 15. Nd2 Qg6 16. Re1 Ne6 17. Ra1 f4 18. exf4 exf4 19. Nce4 Be7 20. Nf3 Qh6 21. a6 b6 22. Neg5 {Vannicola,R-Sodomski,A (2006) ICCF 2011 1/2-1/2 (26)}) 11. bxc6 Bxc6 12. Bh3 g6 13. Bd2 b6 14. Re1 Re8 15. Bg2 Qd7 16. e4 Ne6 17. exf5 gxf5 18. Bh3 Ng4 19. Nd5 {Baranyuk,A (2211) -Recasens Sánchez,J (2184) ICCF 2009 1/2-1/2 (30)}) (7... Kh8 8. Qc2 (8. b4 a5 9. b5 Nbd7 10. Bb2 Qe8 11. e3 Qh5 12. Nd2 Qxd1 13. Raxd1 a4 14. Ba1 a3 15. Nb3 Nb6 16. Rc1 Na4 17. Rfd1 Re8 18. Nxa4 Rxa4 19. d4 e4 {Bonoldi,F (1937) -Calabrese,C ICCF 2011 0-1 (58)}) 8... c6 9. Rd1 Ng4 10. h3 Nf6 11. b4 Na6 12. b5 Nc7 13. bxc6 bxc6 14. Rb1 Ne6 15. Be3 f4 16. gxf4 exf4 17. Bd2 Qe8 18. d4 Qh5 19. Rb2 {Beck,G (2223)-Cordel,Y ICCF 2008 1/2-1/2}) (7... Nc6 8. Be3 Bd7 9. Qb3 Rb8 10. h3 f4 11. gxf4 exf4 12. Bxf4 {1-0 (12) Jezek,O (1774)-Kocian,S (1683) ICCF 2017}) 8. b4 (8. Bg5 Nbd7 9. Bxf6 Nxf6 10. Qb3 c6 11. c5+ Kh8 12. cxd6 Bxd6 13. e3 Rb8 14. d4 e4 15. Nd2 Be6 16. Qc2 Qh5 17. h3 Qh6 18. Nb3 Bf7 19. Rac1 g5 {Ellis,A-Trzeciak,R (2077) ICCF 2016 1/2-1/2 (38)}) (8. d4 e4 9. Ng5 h6 10. Nh3 Qf7 11. d5 Nbd7 12. f3 exf3 13. exf3 Ne5 14. b3 a6 15. Re1 Re8 16. Nf4 Nh7 17. Bb2 Bf6 18. Qd2 Bd7 19. Nce2 Ng5 {Gierden,H-Hughes,G (1777) ICCF 2014 1/2-1/2 (29)}) (8. c5 Kh8 9. Bg5 Be6 10. cxd6 Bxd6 11. Nxe5 Bxe5 12. Bxb7 Nc6 13. Bxa8 Qxa8 14. Qd2 Qb7 15. Rac1 Nd4 16. Be3 c5 17. b3 Re8 18. Rfe1 Ng4 19. Bg5 h6 {Gobleja,K (2229)-Graudins,I (2432) ICCF 2005 0-1 (26)}) (8. e3 Qh5 9. Nd2 Qxd1 10. Rxd1 a5 11. f4 Na6 12. Nf3 {Almer,G (1943)-Stepp,R (1946) ICCF 2005}) (8. Qb3 Nc6 9. Bd2 Kh8 10. Nd5 Bd8 11. Bc3 a5 12. Rfe1 f4 13. gxf4 Qg6 14. Kf1 a4 15. Qc2 Nd4 16. Bxd4 exd4 17. Nxf6 Qxf6 18. Qd2 c5 19. b4 cxb4 { Andrade,J (2046)-Salvatore,C (2279) ICCF 2011 0-1 (27)}) 8... Qh5 (8... a6 9. Qb3 h6 10. d4 e4 11. Nd2 Bd8 12. Rd1 Nc6 13. e3 h5 14. h4 Ng4 15. Nd5 Be6 16. Nf4 Bf7 17. Bb2 g5 18. hxg5 Bxg5 19. Qc3 Kh7 20. Re1 {Thorsson,B (2110)-o/ oorsteinsson,o/o (2459) ICCF 2016 1/2-1/2 (38)}) (8... Nc6 9. b5 Nd8 10. Qb3 Ne6 11. c5 Kh8 12. cxd6 Bxd6 13. Ba3 Nc5 14. Qc4 Be6 15. Qh4 Nfd7 16. Bc1 f4 17. Ng5 Bg8 18. Nce4 Be7 19. gxf4 exf4 20. Bxf4 {Bolda,G (2153)-Doppelhammer,H ICCF 2012 0-1 (42)}) (8... h6 9. Nd2 Nc6 10. Rb1 a6 (10... f4 11. e3 Bg4 12. Qc2 Qh5 13. b5 Nd8 14. f3 fxg3 (14... Bd7 15. Nde4 Nxe4 16. dxe4 Ne6 17. Nd5 Bg5 18. exf4 exf4 19. Rd1 Rf7 20. Rb3 Raf8 21. Ba3 Bd8 22. c5 fxg3 23. hxg3 c6 24. bxc6 bxc6 25. Ne3 dxc5 26. Nf5 {Abramov,S (2412)-Savin,V (2334) ICCF 2014 1/2-1/2 (76)}) 15. hxg3 Be6 16. Nde4 Nxe4 17. Nxe4 Qg6 18. f4 Bf5 19. Kh2 Qh5+ 20. Kg1 Qg6 21. Kh2 {1/2-1/2 (21) Zhak,B (2570)-Savin,V (2328) ICCF 2010}) 11. e3 Bd7 12. a3 Qf7 13. Bb2 Rae8 14. Qb3 Bd8 15. Rbe1 Kh8 16. Ne2 b5 17. Nc3 Ne7 18. f4 Ng6 19. Nd5 c6 20. Nxf6 {Overton,D (2444)-Chocenka,D (2458) ICCF 2008 1-0 (65)}) 9. Qb3 (9. Bd2 Na6 (9... h6 10. Rb1 a6 11. Qc2 g5 12. a4 Be6 13. Nd5 Bd8 14. Nxf6+ Bxf6 15. Bc3 Nd7 16. Nd2 Rab8 17. e3 f4 18. exf4 gxf4 19. Bf3 Bg4 20. Bxg4 Qxg4 21. f3 {Semmelroth,H (2335)-De Carlos Arregui,I (2361) ICCF 2012 1/2-1/2 (33)}) 10. Rb1 c6 11. b5 cxb5 12. Rxb5 (12. cxb5 Nc7 13. Qa4 Ne6 14. Qc4 Kh8 15. Rfc1 Rd8 16. Nd5 Nxd5 17. Qxd5 Nc5 18. Rxc5 dxc5 19. Qxe5 Qf7 20. a4 Re8 21. Be3 a6 22. a5 Bd7 23. bxa6 bxa6 {Krause,C (2383)-Frangi,M (2311) ICCF 2010 1/2-1/2 (57)}) 12... Rb8 13. Qb3 Nc5 14. Rxc5 dxc5 15. Nxe5 Bd6 16. f4 Re8 17. Bf3 Qh6 18. Bc1 Qh3 19. Bg2 Qh5 20. Nb5 Bxe5 {Sande,Ø (2097) -Blondel,F (2047) ICCF 2019 1-0 (53)}) (9. Rb1 a6 (9... Kh8 10. e3 a5 11. b5 Nbd7 12. Bb2 Rb8 13. Nd2 Qh6 14. Qe2 Bd8 15. Nb3 f4 16. Rbe1 fxg3 17. fxg3 b6 18. d4 Be7 19. Bc6 Bb7 20. Rf5 Ba8 21. e4 {Leal,P (2360)-Kostanjsek,Z (2235) ICCF 2013 1-0 (34)}) 10. Qb3 Kh8 11. a4 f4 12. Nd5 Nxd5 13. cxd5 Nd7 14. Bd2 Nf6 15. Rfc1 Bh3 16. Be1 Ng4 17. Rxc7 Bd8 18. Rc4 Rf6 19. Bh1 Rh6 20. d4 e4 { Dolinski,P (2383)-De Carlos Arregui,I (2367) ICCF 2011 0-1}) (9. e3 a6 10. Nd2 Qxd1 11. Rxd1 Nc6 12. Rb1 Nd8 13. Bb2 Nf7 14. f4 c6 15. a4 Be6 16. a5 Rfe8 17. Na4 Nd7 18. Bc3 d5 19. b5 axb5 20. cxb5 cxb5 {Coyne,D (2326)-Cook,D (2261) ICCF 2016 1/2-1/2 (33)}) 9... Kh8 10. Rb1 (10. Bd2 Na6 11. d4 exd4 12. Nxd4 Nxb4 13. Qxb4 c5 14. Qb3 cxd4 15. Nb5 Ne4 16. Rad1 (16. Bf4 g5 17. Bxe4 gxf4 18. Bd5 fxg3 19. fxg3 f4 20. Rxf4 Rxf4 21. gxf4 Bd7 22. Nxd4 Bf6 23. Rd1 Re8 24. Qf3 Bg4 25. Qd3 Bxe2 26. Nxe2 Rxe2 27. Qg3 Rg2+ {Bürger,A (2181) -Koronowski,H (2149) ICCF 2011 1/2-1/2 (30)}) 16... Nc5 17. Qb2 Bf6 18. Qa3 Ne4 19. Nxd6 Nxd6 20. Qxd6 Rd8 21. Qb4 Qf7 {Morley,P (2262)-Koronowski,H (2149) ICCF 2011 1-0 (33)}) (10. Re1 f4 11. Nd5 Nxd5 12. cxd5 Bg4 13. Qc4 Nd7 14. Qxc7 Bd8 15. Qxb7 fxg3 16. hxg3 Bb6 17. Rb1 Nf6 18. d4 Rab8 19. Qc6 e4 20. Nh2 Bxe2 21. Rb3 Nxd5 {Rabczewski,A (2007)-Maschietti,G (2007) ICCF 2020 0-1 (26)}) (10. d4 e4 11. Ng5 h6 (11... Nc6 12. d5 Nd4 13. Qd1 Ng4 14. h4 Bf6 15. Rb1 h6 16. Nh3 g5 17. Bb2 gxh4 18. Nxe4 fxe4 19. Bxd4 Be5 20. Nf4 Qg5 21. Rb3 Qg7 22. Nh5 Qg5 23. Nf4 {Schanzenbächer,M (2123)-Zeihen,P (2146) ICCF 2015 0-1 (38)}) 12. Nh3 g5 13. f4 Nc6 14. fxg5 Nxd4 15. Qd1 hxg5 16. Qxd4 f4 17. Nf2 f3 18. exf3 exf3 19. Bxf3 Qxf3 20. Nfe4 c5 21. bxc5 dxc5 {Beavan,R (1945)-Hey,B ICCF 2018 1-0}) 10... Nbd7 11. Bd2 a6 12. Rfe1 c6 13. h3 h6 14. a3 g5 15. Qc2 g4 16. hxg4 Nxg4 17. Rbc1 f4 {Shields,G (2255)-Dearnley,A (2378) ICCF 2010 0-1}) (6. Rb1 a5 (6... Nc6 7. Nf3 O-O 8. O-O a5 (8... Qe8 9. b4 a6 10. e3 Qg6 11. Qb3 Qh5 12. Nd5 Bd8 13. Nd2 f4 14. b5 Na5 15. Qa3 fxg3 16. Nxf6+ Rxf6 17. fxg3 axb5 18. Rxf6 gxf6 19. Rxb5 c6 20. Rb1 {Welik,L (2102)-Van Steenkiste,L ICCF 2013 1-0 (26)}) 9. a3 Qe8 10. Bd2 Bd8 11. Qc2 a4 12. Nb5 Bd7 13. Bg5 Qg6 14. Bh4 f4 15. c5 d5 16. b4 axb3 17. Qxb3 Qh5 18. Bxf6 {Owens,J (1300)-Holmes,R ICCF 2009 1/ 2-1/2 (37)}) 7. a3 O-O 8. b4 axb4 9. axb4 Qe8 10. e3 c6 11. Nge2 Be6 12. b5 d5 13. d4 e4 14. c5 Qc8 15. O-O b6 16. Na4 Nbd7 17. Nf4 Bf7 {Williams,R (2246) -Cook,D (2216) ICCF 2014 0-1 (54)}) 6... O-O 7. Nge2 c6 (7... a5 8. O-O Qe8 9. b3 c6 10. Bb2 Na6 11. Qd2 Bd7 12. d4 Bd8 13. a4 (13. Rad1 Bc7 14. Qc2 Nb4 15. Qb1 e4 16. a3 Nd3 17. Rxd3 exd3 18. Qxd3 Kh8 19. d5 Ng4 20. h3 Ne5 21. Qc2 Qe7 22. Nd4 Bb6 23. Qd2 Rae8 24. dxc6 bxc6 {Heinemann,C (2148)-Jensen,K (2211) ICCF 2009 1/2-1/2 (39)}) 13... Bc7 14. Ba3 e4 15. f3 exf3 16. Bxf3 Nb4 17. Rae1 Qe7 18. Bg2 Rae8 19. Nf4 {Morley,P (2234)-Rau,M (2289) ICCF 2009 1-0 (44)}) 8. O-O (8. f4 Na6 9. O-O Rb8 10. a3 Qe8 11. b4 Nc7 12. Bb2 Bd7 13. Qd2 Qh5 14. Nd1 Ne6 15. Nf2 exf4 16. Nxf4 Qh6 17. b5 a6 18. bxc6 bxc6 19. Nxe6 Bxe6 {Boger,R (2619)-Ellis,L (2295) ICCF 2013 1/2-1/2 (47)}) 8... Be6 9. f4 (9. b3 d5 10. Bb2 (10. f4 e4 11. Nd4 Qd7 (11... Bd7 12. Bb2 Na6 13. cxd5 cxd5 14. dxe4 dxe4 15. Re1 Qb6 16. a3 Nc7 17. b4 a5 18. b5 Rac8 19. Bh3 g6 20. Bf1 Be8 21. Bc4+ Bf7 22. Qb3 Rcd8 23. Bxf7+ {Sacripanti,G (2223)-Westerman,H (2257) ICCF 2011 1-0 (29)}) 12. Bb2 Na6 13. Nxe6 (13. cxd5 Nxd5 14. Nxe6 Qxe6 15. Nxd5 cxd5 16. dxe4 fxe4 17. Rf2 Nb4 18. Bf1 Bc5 19. Bd4 Bxd4 20. Qxd4 Nc6 21. Qb2 Ne7 22. Rc1 Rac8 23. Rfc2 Qb6 24. Kf2 Rcd8 {Vecek,M (2255)-Zeihen,P (2173) ICCF 2015 1/2-1/2 (44)}) 13... Qxe6 14. cxd5 cxd5 15. Re1 Rac8 16. dxe4 dxe4 17. Ne2 Bb4 18. Nd4 Qd7 19. Re2 Bc3 20. Bxc3 Rxc3 21. Bh3 Nd5 {Vecek,M (2289)-Baumgartner,M (2293) ICCF 2014 1/2-1/2 (49)}) (10. d4 e4 11. Nf4 Bf7 12. cxd5 cxd5 13. Bb2 Nc6 14. Rc1 g5 15. Nfe2 Bh5 16. Qd2 Bf3 17. Na4 Qe8 18. Nc5 b6 19. Na6 Rc8 20. Nc3 Qh5 21. h3 Bd6 {Hasidume,S (1868)-Somogyi,J (2238) ICCF 2008 0-1 (26)}) 10... Nbd7 11. Qd2 dxc4 12. bxc4 Qe8 13. Rfd1 Qf7 14. Qc2 Rad8 15. Rac1 Nh5 16. Rb1 Nb6 17. a4 f4 18. exf4 exf4 19. Nxf4 Nxf4 20. gxf4 Qg6 {Turczynski,M (2157)-Yvinec, J (2354) ICCF 2010 1/2-1/2 (92)}) 9... Nbd7 (9... Na6 10. b3 Qd7 11. Ba3 Rae8 12. Qd2 Bf7 13. e4 fxe4 14. Nxe4 exf4 15. Nxf4 d5 16. Bxe7 Qxe7 17. Nxf6+ Qxf6 18. cxd5 Qd4+ 19. Qf2 Qxf2+ 20. Rxf2 g5 21. dxc6 {Portych,V (2184)-Perrin,R (1810) ICCF 2010 1-0 (37)}) 10. b3 (10. b4 a6 11. Rb1 Qe8 12. a4 Qh5 13. Qd2 Rfc8 14. Ba3 Ra7 15. b5 axb5 16. cxb5 Bf8 17. Rb2 Qe8 18. fxe5 dxe5 19. Bxf8 Nxf8 20. d4 e4 21. bxc6 bxc6 {Sacripanti,G (2251)-Jensen,K (2219) ICCF 2010 1/ 2-1/2 (43)}) 10... Qc7 (10... Qe8 11. Ba3 (11. Qd2 Qh5 12. Ba3 Rae8 13. Rad1 Qh6 14. h3 Nb6 15. Bc1 Bc8 16. Qe1 exf4 17. exf4 Bd8 18. Qf2 Qg6 19. b4 d5 20. c5 Na8 21. Nd4 Nc7 22. a4 Nh5 {Andersson,M (2408)-Manduch,M (2385) ICCF 2015 1/ 2-1/2 (29)}) 11... Qh5 12. h3 Rae8 13. Qd2 Qg6 14. Rad1 (14. Kh2 Nh5 15. d4 exd4 16. exd4 Ndf6 17. d5 cxd5 18. cxd5 Bd7 19. Qd4 Qh6 20. Rac1 Ne4 21. Nxe4 fxe4 22. Rfe1 g5 23. Rc7 Bf6 24. Qc4 b5 25. Qc2 Rf7 {Evans,G (2408)-Manduch,M (2400) ICCF 2011 1/2-1/2 (31)}) 14... Nh5 15. Kh2 Ndf6 16. Bf3 Bc8 17. Bg2 Be6 18. e4 exf4 19. gxf4 Nd7 20. Qe3 Nb6 21. c5 dxc5 22. Bxc5 {Nývlt,Z (2606) -Zárate,J (2476) ICCF 2005 1-0 (55)}) (10... Qb6 11. Rb1 Rad8 12. b4 g6 { 0-1 (12) Ramos Verdú,J (2214)-Hale,A (2105) ICCF 2017}) 11. Qd2 Nc5 (11... Rae8 12. Bb2 Nc5 13. d4 exd4 14. Nxd4 Bc8 15. Qc2 Bd8 16. b4 Nce4 17. Nxe4 Nxe4 18. a3 Bf6 19. Rad1 b6 20. Qb3 Bd7 21. a4 a6 22. b5 c5 23. Nf3 {Vecek,M (2263) -Balta,M (2209) ICCF 2014 1-0 (79)}) 12. Ba3 Bd7 (12... Bf7 13. fxe5 dxe5 14. d4 Nce4 15. Nxe4 Nxe4 16. Bxe4 fxe4 17. Bxe7 Qxe7 18. dxe5 Bh5 19. Rxf8+ Rxf8 20. Rf1 Rxf1+ 21. Kxf1 Bxe2+ 22. Kxe2 Qxe5 23. Qd4 Qh5+ {1/2-1/2 (23) Marquardt,G (2326)-Frangi,M (2306) ICCF 2012}) 13. b4 Ne6 14. d4 Rae8 15. Rad1 exf4 16. exf4 Qb6 {Raby,E (2023)-Clark,S (2066) ICCF 2014 1/2-1/2 (36)}) (5. e3 Be7 (5... g6 6. Nge2 Bg7 7. d4 (7. O-O O-O 8. d3 a5 (8... c6 9. b4 (9. Qc2 Be6 10. b3 d5 11. Bb2 Na6 {0-1 (11) Todd,D (1668)-Endsley,B (2283) ICCF 2020}) 9... a6 10. a4 Be6 11. Ba3 Re8 12. b5 d5 13. cxd5 Nxd5 14. Nxd5 Bxd5 15. bxc6 Bxg2 16. Kxg2 Nxc6 17. Qb3+ Kh8 18. Rfd1 Qd7 19. Rab1 {Wolochowicz,P (2303)-White,D (2377) ICCF 2006 1/2-1/2}) 9. Rb1 (9. b3 c6 10. Bb2 (10. Ba3 Na6 11. Qd2 Rb8 12. f4 Re8 13. Rae1 Qc7 14. d4 e4 15. d5 Nb4 16. Rd1 Rd8 17. h3 Qf7 18. g4 fxg4 19. hxg4 Bxg4 20. Nxe4 Nxe4 21. Bxe4 cxd5 {Salceanu,V (2528)-Schrancz,I (2470) ICCF 2002 1/2-1/2 (29)}) 10... Na6 11. Qd2 Bd7 12. Rad1 (12. Rae1 Re8 13. e4 Nc5 14. exf5 Bxf5 15. Nc1 d5 16. cxd5 cxd5 17. d4 exd4 {Heinemann,C (2006) -Westerman,H (2278) ICCF 2004 1/2-1/2 (26)}) 12... Re8 13. Na4 b6 14. h3 Rb8 15. Nac3 b5 16. e4 Qe7 {Frömbgen,A (2108)-Hadi,J (2246) ICCF 2019 1/2-1/2}) 9... c6 10. b3 (10. a3 Be6 11. b4 axb4 12. axb4 Qc7 13. b5 Nbd7 14. Qc2 Nc5 15. Bb2 e4 16. dxe4 Bxc4 17. e5 dxe5 18. bxc6 Bd3 19. Nd5 Qa5 20. Qd1 bxc6 { Mallmann,B-Nyberg,W (2252) ICCF 2020 1/2-1/2 (26)}) 10... Na6 11. Bb2 Be6 12. Qd2 Nc5 13. f4 Re8 14. Ba3 exf4 15. Nxf4 Bf7 16. d4 Nce4 17. Nxe4 Nxe4 18. Qd3 a4 {Rilberg,S (2353)-De Blois Figueredo,A (2309) ICCF 2009 0-1 (30)}) (7. b3 O-O 8. O-O c6 9. Bb2 Na6 10. d4 Qe7 11. h4 Nc7 12. Qd2 Rd8 13. Rfe1 e4 14. Rac1 d5 15. Nf4 Be6 16. Nxe6 Qxe6 17. Ba3 dxc4 18. bxc4 b6 {Lagergren,H (1934)-Hrdý, T (2056) ICCF 2015 1-0 (37)}) 7... O-O 8. O-O c6 9. b3 Qc7 (9... e4 10. d5 c5 11. Bb2 Nbd7 12. Nf4 Ne5 13. Qe2 Qe7 14. Rad1 Rb8 15. Rd2 a6 16. Rfd1 Nf7 { Demian,V (2205)-Dubuc,S (2245) ICCF 2018 1/2-1/2 (50)}) 10. Ba3 Rd8 11. Qd2 Be6 12. d5 cxd5 13. Nxd5 Nxd5 14. Bxd5 Bxd5 15. Qxd5+ Qf7 16. Rad1 Bf8 17. Qxe5 { Mironchik,A (1855)-Groenhout,R (1861) ICCF 2016 1-0 (25)}) (5... c6 6. Nge2 g6 7. d4 Bg7 8. d5 e4 9. dxc6 bxc6 10. O-O O-O 11. b3 Bb7 12. Ba3 Ne8 13. Rc1 Rf7 14. g4 Qa5 15. Bxd6 Nxd6 16. Qxd6 Na6 17. gxf5 {Arancibia Guzmán,E (2438) -Mende,I (2412) ICCF 2017 1/2-1/2 (46)}) 6. Nge2 O-O (6... c6 7. O-O Be6 8. b3 O-O 9. d4 Bf7 10. a4 e4 11. Bh3 g6 12. Ba3 a5 13. Qd2 Na6 14. Bg2 Nb4 15. Na2 c5 16. Nxb4 axb4 17. Bb2 d5 18. dxc5 {Allenby,E (2024)-Johansson,C (2119) ICCF 2014 0-1 (48)}) (6... a5 7. d4 c6 8. d5 Qc7 9. O-O O-O 10. e4 Na6 11. h3 fxe4 12. g4 Nc5 13. Ng3 Nd3 14. g5 Ne8 15. Ngxe4 Nf4 16. Bxf4 Rxf4 17. Qd3 Rb8 18. Rad1 {Owens,J (2153)-Maté,H (2128) ICCF 2017 1-0 (28)}) 7. O-O c6 (7... Qe8 8. Nd5 Bd8 9. d4 a5 10. b3 Nbd7 11. Qc2 Qh5 12. Bb2 Nxd5 13. Bxd5+ Kh8 14. h4 Bxh4 15. gxh4 Qxh4 16. dxe5 Nxe5 17. Nf4 Ng4 18. f3 Nxe3 19. Qh2 {Clews,W (1888) -Fenby,J ICCF 2012 1-0}) 8. d4 (8. b3 d5 9. Bb2 dxc4 10. bxc4 Be6 11. d4 Bxc4 12. dxe5 Qxd1 13. Rfxd1 Ng4 14. Rab1 Nxe5 15. Nd5 cxd5 16. Bxe5 Nc6 17. Bxd5+ Bxd5 18. Rxd5 b6 19. Rc1 Nxe5 {Beavan,R (1844)-Løvholt,T (2139) ICCF 2009 1/ 2-1/2}) (8. a3 Be6 9. b3 Nbd7 10. d4 Bf7 11. Qc2 e4 12. f3 d5 13. c5 exf3 14. Bxf3 Ne4 15. Bg2 Nxc3 {Davies,A-Cook,D (2232) ICCF 2015 0-1 (26)}) 8... Na6 9. b3 (9. a3 Nc7 10. Qc2 e4 11. Bd2 Be6 12. b3 d5 13. Na4 Bf7 14. Nf4 g5 15. Ne2 Bh5 16. Bb4 Bf3 17. Nec3 Bxg2 18. Bxe7 Qxe7 19. Kxg2 f4 20. exf4 gxf4 { Kellermann,F (2227)-Somogyi,J (2164) ICCF 2010 0-1 (30)}) 9... Nc7 (9... e4 10. d5 (10. h4 Nc7 11. Nf4 d5 12. c5 Ng4 13. b4 Ne6 14. Nce2 g5 15. Nxe6 Bxe6 16. hxg5 Bxg5 17. Bh3 Rf6 18. Bxg4 fxg4 {0-1 (18) Suissi,S-Somogyi,J (2326) ICCF 2006}) 10... Nc5 11. f3 exf3 12. Bxf3 Bd7 13. Qc2 Qe8 14. Nd4 Nce4 15. dxc6 bxc6 16. Bb2 Qg6 17. Nxe4 fxe4 18. Bg2 Rae8 19. Rae1 Qh6 20. Rf4 Bd8 21. Re2 { Lane,T (1948)-Upham,J ICCF 2019 0-1 (54)}) 10. f3 Be6 11. Qc2 Qe8 12. Bb2 Qg6 13. Nd1 Nd7 14. Nf2 a5 15. dxe5 dxe5 16. f4 Bc5 {Brissman,A (2314)-Murin,P (2190) ICCF 2009 1-0 (69)}) (5. Rb1 Be7 6. b4 O-O 7. e3 Kh8 8. Nge2 Nbd7 9. O-O e4 10. d3 Ne5 11. dxe4 fxe4 12. Nxe4 Bf5 13. Qc2 c6 14. Bb2 Qe8 15. f3 Nxe4 16. fxe4 Be6 {Silverman,R-Hey,B ICCF 2020 1/2-1/2 (38)}) (5. Nf3 Be7 6. O-O O-O 7. b3 Kh8 8. d3 Qe8 9. Bg5 Qh5 10. Nb5 Bd8 11. d4 e4 12. h4 exf3 13. Bxf3 Qf7 14. Bf4 Nc6 15. c5 d5 16. Be5 Ne4 {Anderson,L (1276)-Groenhout,R (1781) ICCF 2014 0-1 (32)}) 5... Be7 (5... e4 6. f3 (6. Nh3 h6 7. O-O Be7 8. f3 exf3 9. exf3 O-O 10. Nf4 g5 11. Ng6 Rf7 12. f4 g4 13. b3 Kg7 14. Nxe7 Rxe7 15. Qd2 Nc6 16. Bb2 Qf8 17. Rae1 Bd7 {Darmanto,H-Priest,S (1959) ICCF 2017 1-0 (25)}) 6... exf3 7. Nxf3 g6 8. O-O Bg7 9. Bg5 O-O 10. e4 h6 11. Bxf6 Qxf6 12. exf5 Bxf5 13. Nd5 Qd8 14. Nh4 Nc6 15. Nxf5 Rxf5 16. Qg4 Rg5 17. Qe6+ {Heinemann,C (1989)-Løvholt,T (2172) ICCF 2004 1/2-1/2}) (5... Nbd7 6. Nf3 Be7 7. O-O O-O 8. Ng5 Nb6 9. dxe5 dxe5 10. Qb3 Bc5 11. Be3 Qe7 12. Nd5 Nbxd5 13. Bxc5 Qxc5 14. Bxd5+ Nxd5 15. cxd5 Qb6 {Bokar,J (2587)-Peschardt,S (2085) ICCF 2008 1-0 (29)}) 6. Nf3 (6. dxe5 dxe5 7. Qxd8+ Bxd8 8. b3 (8. Nf3 Nc6 9. Be3 O-O 10. O-O e4 11. Nd4 Nxd4 12. Bxd4 Be6 13. b3 c6 14. f3 exf3 15. exf3 Be7 16. Rfd1 Rfe8 17. Bf1 Nd7 18. Rac1 Nc5 19. Bf2 Rad8 {Klewe,W (2225)-Evans,S (1717) ICCF 2015 1/2-1/2}) 8... c6 9. Nf3 Nbd7 (9... Bb6 10. O-O e4 11. Ne1 Kf7 12. Nc2 Nbd7 (12... Na6 13. Na4 Bc7 14. Bb2 Rd8 15. Nd4 Bd7 16. f3 exf3 17. Rxf3 {0-1 (17) Allen,E-Akrill,R (2103) ICCF 2017}) 13. Na4 Bc7 14. Be3 Nf8 15. Rad1 Ne6 16. Nd4 Nxd4 17. Bxd4 h5 18. h4 Rd8 19. e3 b6 20. Nc3 Bb7 21. Ne2 {Triay Moll,L (2345)-De Carlos Arregui,I (2334) ICCF 2013 1/2-1/2 (28)}) 10. O-O O-O 11. Ba3 Re8 12. Rfd1 e4 13. Nd4 Ne5 14. Na4 Bc7 15. Rab1 Bd7 16. Nc5 Bc8 17. f4 Neg4 {Spiegel,W (2360) -Somogyi,J (2203) ICCF 2009 1-0 (46)}) (6. e3 O-O 7. Nh3 c6 8. O-O h6 9. b3 Be6 10. Ba3 Re8 11. d5 Bf7 12. Bb2 Qc8 13. f4 e4 14. Nf2 cxd5 15. Nxd5 Nxd5 16. cxd5 Qd8 17. Rc1 Bf6 {Bartsch,R (2260)-Zeihen,P (2293) ICCF 2018 1/2-1/2 (67)}) (6. Nh3 c6 (6... O-O 7. O-O Qe8 8. e3 Nc6 9. Nd5 Bd8 10. b3 Qg6 11. Re1 Kh8 12. dxe5 dxe5 13. Bb2 Qh6 14. f3 f4 15. g4 fxe3 16. Nxe3 Qg6 17. Qc2 e4 18. Nf2 { Arnold,E (1919)-Rust,L ICCF 2017 1/2-1/2 (42)}) 7. O-O O-O 8. b3 Na6 9. e3 Nc7 10. Bb2 e4 11. d5 Ng4 12. dxc6 bxc6 13. Nf4 g5 14. Nfe2 Qe8 15. Nd4 Bd7 16. Qd2 Qh5 17. h3 Ne5 {Wilson,M (2268)-Farmer,M (1950) ICCF 2020 1-0 (30)}) 6... e4 7. Ng5 c6 8. d5 (8. Nh3 O-O (8... Na6 9. O-O O-O 10. f3 exf3 11. exf3 Nc7 (11... d5 12. Qb3 Qb6 13. Qxb6 axb6 14. cxd5 Nb4 15. dxc6 bxc6 16. Rf2 Nfd5 17. Nxd5 Nxd5 18. Bg5 Bd6 19. Bf1 f4 20. Nxf4 Bxf4 21. gxf4 h6 22. Bh4 Rxf4 23. Bg3 { Arreaga,A (2328)-Bristol,M (2123) ICCF 2011 1/2-1/2 (38)}) 12. Re1 (12. b3 Bd7 13. Bb2 a6 14. a4 b5 15. axb5 axb5 16. Rxa8 Qxa8 17. Nf4 bxc4 18. bxc4 Qb7 19. Qc2 Rb8 {0-1 (19) Goetzee,R (1877)-Bonoldi,F (1949) ICCF 2012}) (12. Nf4 d5 13. c5 Re8 14. Re1 Bf8 15. Be3 b6 16. b4 bxc5 17. bxc5 Ne6 18. Qa4 Nxf4 19. Bxf4 Bd7 20. Be5 Re6 21. Re2 Qe8 22. Rae1 Qf7 23. a3 g6 {Juárez de Vena,A (1960) -Campbell,I (1879) ICCF 2013 1-0 (38)}) 12... Re8 (12... Be6 13. Qd3 Qe8 14. b3 d5 15. Bf4 Rc8 16. Bxc7 Rxc7 17. Rxe6 {1-0 (17) Januario,M-Gawne,M ICCF 2013}) (12... d5 13. Bf1 Kh8 14. Bf4 dxc4 15. Bxc4 Bd6 16. Bxd6 Qxd6 17. Ng5 Qd7 18. Qd2 h6 19. Nh3 b5 20. Bb3 Rd8 21. Rad1 c5 22. Nf4 Qd6 23. Re5 c4 24. Bc2 { Laghetti,G (2315)-Frangi,M (2306) ICCF 2012 1-0 (56)}) 13. Bf1 (13. Be3 d5 14. b3 Bb4 15. Qd3 Ne6 16. Red1 Bd7 17. a3 dxc4 18. bxc4 Ba5 19. Nf2 f4 20. Bc1 { Bonoldi,F (1922)-O'Neill-MCAleenan,C (1985) ICCF 2014 1/2-1/2 (30)}) (13. Qd3 d5 14. Bf4 Bd7 15. Rac1 dxc4 16. Qxc4+ Ncd5 17. Be5 Kh8 18. Ng5 Qa5 19. f4 h6 20. Nf7+ Kh7 21. Bd6 Bf8 22. Bxf8 Rxe1+ 23. Rxe1 Rxf8 24. Nd6 Nxc3 {Zakharov,V (2006)-Kostanjsek,Z (2187) ICCF 2010 1/2-1/2 (39)}) 13... Be6 14. Kg2 Kh8 ( 14... Nd7 15. Be3 Bf6 16. Qc2 Nb6 17. b3 d5 18. c5 Nd7 19. Bf2 Qe7 20. b4 g5 21. Bd3 f4 22. Ne2 Kh8 23. Bf5 fxg3 24. hxg3 Bxf5 {Kratochvíl,J (2101)-Cook,D (2216) ICCF 2014 1/2-1/2 (49)}) 15. Qc2 Qd7 16. Bd2 Bg8 17. Nf4 Bf8 18. Bd3 g6 19. Qa4 a6 20. Qc2 {Kratochvíl,J (2221)-Wiesinger,J (2120) ICCF 2013 1/2-1/2 (102)}) 9. O-O (9. Nf4 g5 10. Nh3 h6 11. Ng1 Kg7 12. h4 g4 13. Qd2 Rh8 14. e3 d5 15. cxd5 Nxd5 16. Nxd5 Qxd5 17. Ne2 Qf7 18. Nf4 Na6 19. O-O Kh7 20. Rd1 Bb4 {Lagergren,H (1998)-Müller,H (2034) ICCF 2016 1/2-1/2 (30)}) 9... d5 10. cxd5 cxd5 11. Bg5 Be6 12. Nf4 Bf7 13. Bh3 g6 14. Rc1 Nc6 15. e3 Ne8 16. Bh6 Ng7 17. Ng2 Bg5 18. Bxg5 Qxg5 19. Nf4 Qd8 {Hrzina,B (2100)-Andersen,J (2264) ICCF 2017 0-1 (58)}) (8. O-O d5 9. cxd5 Nxd5 10. h4 O-O 11. Qb3 Kh8 12. f3 h6 13. Nh3 exf3 14. Bxf3 Nf6 15. Rd1 Na6 16. Nf4 Qe8 17. h5 Rf7 18. Ng6+ Kh7 19. Bf4 Bd8 { Moran,R (1849)-Hale,A ICCF 2016 0-1 (55)}) (8. h4 O-O 9. O-O Na6 10. Nh3 Nc7 11. d5 c5 12. Nf4 Bd7 13. f3 exf3 14. exf3 Be8 15. Re1 Nh5 16. Nce2 Nxf4 17. Nxf4 Bd7 18. Rb1 Bf6 19. b3 Re8 {Petty,K (1843)-Perry,W (2235) ICCF 2018 1-0 (41)}) 8... h6 (8... O-O 9. O-O Na6 (9... Ng4 10. Nh3 Ne5 11. b3 Bf6 12. Bb2 Na6 13. Qd2 Nc5 14. Rad1 a5 15. Qc1 a4 16. b4 a3 17. Ba1 Na4 18. c5 Nxc3 19. Bxc3 Qe7 20. cxd6 Qxd6 21. Nf4 {Thurlow,K (2186)-Cook,D (2269) ICCF 2017 1/2-1/ 2 (29)}) 10. Nh3 Qb6 (10... Nc7 11. a4 (11. f3 cxd5 12. cxd5 b5 13. a3 exf3 14. exf3 a5 (14... Bb7 15. Nf4 a5 16. Re1 Re8 17. Ne6 (17. Bf1 b4 18. Na4 Nd7 19. Be3 Bg5 20. axb4 axb4 21. Bc4 Qf6 22. Rc1 Bxf4 23. Bxf4 Rxe1+ 24. Qxe1 g5 25. Bb3 Re8 26. Qf2 Bxd5 27. Bd1 gxf4 28. Rxc7 fxg3 {Stark,R (2178)-Baranyuk,A (2249) ICCF 2013 0-1 (42)}) 17... Nxe6 18. dxe6 b4 19. Na4 d5 20. Be3 Ra6 21. Nc5 Bxc5 {Parsons,L-Tarmak,M (1830) ICCF 2009 1-0 (38)}) 15. Be3 Bb7 16. Qb3 b4 17. axb4 axb4 18. Qxb4 Bxd5 19. Nxd5 Ncxd5 20. Qc4 Qc8 21. Qxc8 Raxc8 22. Bd4 Nb4 {Suninen,J (2323)-Engelberg,J (2126) ICCF 2012 1/2-1/2 (38)}) 11... Bd7 12. f3 exf3 13. exf3 cxd5 14. cxd5 Re8 (14... Na6 15. Be3 Qa5 16. Nf4 Rfe8 17. Kh1 Bf8 18. Re1 Nb4 19. Qb3 Re7 20. Bd2 Qb6 21. a5 Rxe1+ 22. Bxe1 Qc5 23. Ne4 { Sladek,V (2085)-O'Neill-MCAleenan,C (1904) ICCF 2009 1-0 (29)}) 15. Nf4 Kh8 16. Re1 Ng8 17. Be3 Bf6 18. Nh5 Re7 19. Qd2 Be5 20. Bg5 Bxc3 21. bxc3 Rxe1+ 22. Rxe1 {Trs,J (2206)-Boschma,B (2268) ICCF 2015 1/2-1/2 (52)}) 11. b3 (11. dxc6 bxc6 12. b3 Nc5 13. Nf4 g5 14. Nh3 h6 15. Bb2 a5 16. Ba3 Ng4 17. Qd2 Ne5 18. Kh1 a4 19. f4 Ng4 20. b4 Ne6 21. Rfd1 Qe3 22. Bc1 gxf4 {Saviozzi,L (1846) -Calabrese,C ICCF 2012 0-1 (31)}) 11... Nc7 (11... Ng4 12. Nf4 Bf6 13. Bb2 Be5 14. h3 Nf6 15. Qd2 Nc5 16. e3 Qb4 17. dxc6 bxc6 18. Qc2 a5 19. g4 fxg4 20. hxg4 Bxg4 21. f3 exf3 22. Bxf3 Bxf3 23. Rxf3 {Verslype,S-Soldano,G ICCF 2009 0-1 (59)}) 12. Be3 (12. Bg5 cxd5 13. Bxf6 Rxf6 14. Nf4 dxc4 15. Nfd5 Nxd5 16. Nxd5 Qd8 17. Nxf6+ Bxf6 18. Qd5+ Kf8 19. Rad1 c3 20. g4 g6 21. gxf5 gxf5 22. Bh3 { Fedukin,A (2168)-Bronnikov,A (2212) ICCF 2014 1/2-1/2 (64)}) 12... Qa6 13. Qd2 cxd5 14. Nxd5 Ncxd5 15. cxd5 Bd8 16. Nf4 Bb6 17. Rfc1 Bxe3 18. Qxe3 Bd7 19. Qd2 Qb6 20. h4 {Morley,P (2391)-Korshunov,S ICCF 2013 1/2-1/2 (46)}) (8... Nxd5 9. Ngxe4 Nb6 10. Nd2 O-O 11. O-O a5 12. b3 Bf6 13. Bb2 Na6 14. Nf3 a4 15. Nd4 Nc5 16. e3 f4 17. gxf4 {Tosi,F (2271)-Maître,F (2242) ICCF 2011 1/2-1/2 (35)}) 9. Nh3 Nbd7 10. O-O Ne5 11. b3 (11. f3 Nxc4 12. fxe4 fxe4 13. Nf4 O-O 14. Nxe4 Ng4 15. Qb3 Qb6+ 16. Nf2 Nxf2 17. Rxf2 Ne5 18. Be3 c5 19. h3 Qxb3 20. axb3 a5 21. Bd2 g5 22. Ne6 Rxf2 {Thiel,K (1991)-Bourgault,J (1966) ICCF 2020 1/2-1/2 (42)}) 11... O-O 12. Bb2 (12. Kh1 Qa5 13. Qd2 Bd8 14. dxc6 bxc6 15. Qxd6 Qxc3 16. Bd2 Qb2 17. Rfb1 Be7 18. Qxe7 Qxd2 19. Qxe5 Qxe2 20. Qc5 g5 21. Ng1 Qh5 22. Rf1 Bb7 23. Qxf5 Ng4 {Babasyan,A (2270)-Mehlhorn,U (2353) ICCF 2017 1/2-1/2 (36)}) 12... Bd7 (12... Qa5 13. Qd2 cxd5 14. Nxe4 Qxd2 15. Nxd2 dxc4 16. bxc4 (16. Nxc4 Nxc4 17. bxc4 g5 18. f4 Ne4 19. Nf2 Nc5 20. Nd3 Be6 {Steenlandt,A (1659) -Mehlhorn,U (2353) ICCF 2017 1/2-1/2 (47)}) 16... Be6 17. Nf4 Bf7 18. Rac1 Rac8 19. c5 g5 20. cxd6 Bxd6 21. Nd3 Nfd7 22. Nxe5 Nxe5 23. Bxb7 Rb8 24. Bxe5 { Cutillas Ripoll,P (2421)-De Carlos Arregui,I (2363) ICCF 2015 1/2-1/2 (31)}) 13. Qd2 a5 14. Rac1 Re8 15. dxc6 bxc6 16. Rfd1 Qb8 17. Na4 Kh7 18. Nf4 Ra7 19. f3 g5 20. Nh3 g4 21. fxg4 Nfxg4 22. Nf4 Rg8 23. Ra1 Qe8 24. h3 Nf6 25. Qe3 Rb7 26. c5 Ng6 27. cxd6 Nxf4 28. Qxf4 Bd8 29. Qe3 Rb5 30. Rac1 Nd5 31. Qf2 f4 32. Rxd5 cxd5 33. Kh1 Rb7 34. Nc5 fxg3 35. Qd4 Bxh3 36. Qxd5 Bxg2+ 37. Kxg2 Rf7 38. Nxe4 Rf4 39. Qb7+ Kg6 40. Rc4 Qf7 41. Qxf7+ Kxf7 42. Bc1 Rh4 43. Nxg3 Rxc4 44. bxc4 Bg5 45. Bxg5 Rxg5 46. Kf3 Rc5 47. Ke4 Rxc4+ 48. Kd3 Ra4 49. Nf5 Ke6 50. Nxh6 Ra3+ 51. Kc4 Rxa2 52. d7 Kxd7 {0-1 (52) Benes,J (2190)-Kudr,R (2259) ICCF 2016 English Opening: 1...e5-2 Nc3}) 5. d3 Nf6 6. e3 Be7 7. Nge2 O-O 8. O-O Qe8 9. Nd5 (9. Rb1 a5 10. a3 Nd8 11. b4 axb4 12. axb4 c6 13. Qc2 Ne6 14. b5 Bd7 15. bxc6 bxc6 16. Na4 Bd8 17. c5 d5 18. Nb6 Ra7 19. Bb2 f4 20. exf4 exf4 {Bonoldi, F (2032)-De Smet,K (2175) ICCF 2019 1/2-1/2 (36)}) 9... Bd8 10. f4 Nb8 11. Nxf6+ Bxf6 12. Nc3 exf4 13. exf4 c6 14. Re1 Bd4+ 15. Kh1 Qd8 {Lanzani,P (2066) -Scuderi,D (2281) ICCF 2011 1/2-1/2 (43)}) (4. b3 Be7 5. Bg2 Nf6 6. Nh3 c6 7. d4 Na6 8. O-O O-O 9. Qd2 (9. Ba3 Bd7 10. Qd2 Nc7 11. Rae1 Re8 12. e3 h6 13. Bb2 Bf8 14. f3 b5 15. cxb5 cxb5 16. Nf2 b4 17. Ne2 a5 18. g4 fxg4 19. Nxg4 Nxg4 20. fxg4 Rc8 {Szerlak,A (2412)-Costa Trillo,V (2356) ICCF 2020 1/2-1/2 (39)}) 9... Qe8 10. Ba3 Nc7 11. Rad1 e4 12. d5 cxd5 13. cxd5 Rb8 14. Nf4 b5 15. Bb2 h6 { Martín Sánchez,C (2464)-De Carlos Arregui,I (2433) ICCF 2017 1/2-1/2 (34)}) (4. d4 Nf6 (4... Be7 5. dxe5 (5. Bh3 Nf6 (5... Na6 6. dxe5 (6. Be3 c6 7. dxe5 dxe5 8. Nf3 Qc7 9. Qc2 g6 10. a3 Nc5 11. O-O Nf6 12. b4 Ne6 13. Rad1 O-O 14. c5 Re8 15. Bc1 e4 16. Nh4 a5 17. f3 axb4 {Wölfelschneider,P (2334)-Bröker,C (2333) ICCF 2019 1/2-1/2}) 6... dxe5 7. Qxd8+ Bxd8 8. Nf3 Bf6 (8... e4 9. Nd4 g6 10. Be3 Nf6 11. O-O-O c6 12. f3 exf3 13. exf3 Kf7 14. Rhe1 Re8 15. Bf1 Bd7 16. Nb3 Bc7 17. a3 b6 18. f4 Re7 19. Bd4 Rxe1 20. Rxe1 {Kragten,J (2322)-Evans,S (2045) ICCF 2017 1/2-1/2 (59)}) 9. e4 {Rau,M (2345)-Bröker,C (2340) ICCF 2021}) (5... exd4 6. Qxd4 Na6 (6... Nc6 7. Qd3 (7. Qd1 Nf6 8. Nf3 Ne4 9. Nd5 O-O 10. Be3 a5 11. O-O Bf6 12. Rb1 Re8 13. Bg2 Be6 14. Nd2 Nc5 15. Bxc5 dxc5 16. e3 Ne5 17. f4 Nc6 18. Nxf6+ Qxf6 {Dearnley,A (2378)-Peschardt,S (2206) ICCF 2010 1-0 (42)}) 7... Ne5 (7... Nb4 8. Qd2 Nf6 9. a3 Nc6 10. b3 O-O 11. Bg2 Ne5 12. Nf3 Qe8 13. Nd4 c6 14. f4 Neg4 15. h3 Nh6 16. Bb2 Qg6 17. O-O-O Bd7 18. Rhg1 Rfe8 19. Bf3 { Flatz,H (2317)-Shchemelev,P (2326) ICCF 2019 1-0 (57)}) (7... Nf6 8. Bxf5 Ne5 9. Qc2 O-O 10. Nf3 Nxf3+ 11. exf3 Bxf5 12. Qxf5 Nd7 13. Qd5+ Kh8 14. Qxb7 Ne5 15. f4 Nd3+ 16. Kf1 Rb8 17. Qe4 Nxc1 18. Rxc1 Rxb2 19. Rc2 {Millstone,M (2429) -Salcedo Mederos,P (2445) ICCF 2007 1-0 (37)}) 8. Qc2 Nf6 9. Nf3 Neg4 10. O-O O-O 11. Bg2 c6 12. b3 Bd7 13. Bb2 Qa5 14. Rad1 Rae8 15. h3 Ne5 16. e3 Nxf3+ 17. Bxf3 f4 18. exf4 {Ivanauskas,R (2267)-McDermott,F (2141) ICCF 2016 1-0 (64)}) ( 6... Bf6 7. Qd2 (7. Qe3+ Qe7 8. Nd5 Qxe3 9. Bxe3 Bd8 10. Bd4 Kf7 11. Rd1 Na6 12. b4 Ne7 13. Bc3 Nxd5 14. cxd5 Bd7 15. Nf3 Re8 16. Rd2 Rc8 17. O-O g6 18. Rc1 c5 {Costa Trillo,V (2178)-Genchev,M (2311) ICCF 2013 1/2-1/2 (40)}) 7... Ne7 8. Bg2 c6 9. Nf3 O-O 10. O-O {Deneuville,C (2201)-Boschma,B (2208) ICCF 2017}) ( 6... Nf6 7. Qd3 (7. Nf3 Nc6 8. Qd3 Ne4 9. Nd5 O-O 10. Qc2 a5 11. a3 a4 12. Bg2 Bf6 13. Be3 Be6 14. O-O Na5 15. Rad1 c6 16. Bb6 Qc8 17. Nxf6+ Rxf6 18. Bxa5 Rxa5 {Gray,G (2286)-Genchev,M (2258) ICCF 2018 1/2-1/2 (39)}) 7... g6 8. Bg2 O-O (8... c6 9. Qc2 Nbd7 10. b3 O-O 11. Nh3 Ne4 12. Bb2 Bf6 13. O-O Qe7 14. Rad1 Ndc5 15. Nf4 {Zolochevsky,V (2324)-Admakin,V ICCF 2017 1/2-1/2 (51)}) 9. Nh3 c6 10. O-O Nbd7 11. b3 Nc5 12. Qc2 Nfe4 13. Nxe4 Nxe4 14. Ba3 Qa5 15. Bb2 Bf6 16. Bxf6 Rxf6 17. e3 Bd7 18. f3 {Macurek,M (2129)-Cuccumini,V (2260) ICCF 2016 1-0 (46)}) 7. Qd3 Nc5 (7... Bf6 8. Nd5 c6 9. Nxf6+ {1-0 (9) Benz,G (2554) -Costa Trillo,V (2370) ICCF 2018}) 8. Qc2 Bf6 9. Nd5 g6 10. Nxf6+ Nxf6 11. Bg2 Qe7 12. Nh3 Bd7 13. O-O O-O 14. Be3 Nce4 15. Nf4 a5 16. Nd5 Nxd5 17. cxd5 { Orlovtsev,A (2227)-Eremin,N (2278) ICCF 2014 1/2-1/2 (35)}) (5... a5 6. dxe5 dxe5 7. Qxd8+ Bxd8 8. Nf3 Nc6 9. O-O e4 10. Nh4 Nge7 11. b3 O-O 12. Rb1 Ng6 13. Nxg6 hxg6 14. Rd1 Re8 15. Nb5 Nb4 16. Bd2 b6 17. Bf1 {Eelvelt,H (2276) -Moriarty,A (2217) ICCF 2018 1-0 (67)}) (5... c6 6. dxe5 dxe5 7. e4 Na6 8. exf5 Bc5 9. Qh5+ {1-0 (9) Rahde,F (2257)-Zink,D (2291) ICCF 2020}) (5... Nc6 6. d5 Na5 7. e4 Nf6 8. Bxf5 O-O 9. Qd3 b6 10. Nf3 c6 11. Ng5 Bxf5 12. exf5 Nxd5 13. cxd5 Bxg5 14. b4 Bxc1 15. Rxc1 Qg5 16. O-O Rxf5 17. Ne4 {Calkins,D (1854) -Krett,V (1662) ICCF 2012 1-0}) 6. Nf3 Ne4 7. Nd5 Nc6 (7... c6 8. Nxe7 Qxe7 9. O-O O-O 10. dxe5 dxe5 11. b3 Rd8 12. Qc2 c5 13. Bb2 Nc6 14. Rad1 Re8 15. e3 a5 16. a3 Rf8 17. Bg2 Nf6 18. Ng5 e4 19. Nh3 {Voigt,D (2211)-Jaeger,F (2106) ICCF 2019 1-0 (48)}) (7... O-O 8. dxe5 dxe5 9. Nxe7+ Qxe7 10. Qd5+ Be6 11. Qxb7 Nd7 12. O-O Nb6 13. Nd2 Ng5 14. Bg2 f4 15. c5 Qxc5 16. Ne4 Nxe4 17. Qxe4 Bd5 18. Qxe5 Rae8 19. Qh5 {Bishop,W (2309)-Ebner,J (2345) ICCF 2020 1/2-1/2 (40)}) 8. O-O (8. b3 O-O 9. Bb2 a5 10. O-O Nxd4 11. Nxd4 exd4 12. Re1 Bf6 13. Bxd4 Be5 14. Bg2 c6 15. Nb6 Rb8 16. Nxc8 Rxc8 17. e3 Bxd4 {Rice,P (2343)-Danzanvilliers, P (2344) ICCF 2020}) 8... O-O 9. Bg2 (9. Be3 Nxd4 10. Nxd4 exd4 11. Qxd4 Bf6 12. Nxf6+ Qxf6 13. Qxf6 Nxf6 14. Rfd1 b6 15. Bg2 Ne4 16. f3 Nf6 17. Bd4 Bb7 18. b4 a5 19. a3 axb4 20. axb4 Kf7 {Kragten,J (2327)-Stigter,J (2229) ICCF 2015 1/ 2-1/2 (35)}) 9... a5 10. b3 Nxd4 (10... Nf6 11. dxe5 dxe5 12. Bb2 e4 13. Nxe7+ Qxe7 14. Nd4 Nxd4 15. Qxd4 a4 16. Rad1 Be6 17. f3 b6 18. Qe3 Rae8 19. Bxf6 Rxf6 20. fxe4 Bf7 21. Rf4 axb3 22. axb3 {Pavoni,F (2323)-Rogemont,A (2306) ICCF 2019 1/2-1/2 (44)}) 11. Nxd4 exd4 12. Qd3 Nc5 13. Qxd4 Bf6 14. Nxf6+ Qxf6 15. e3 Ne4 16. Bb2 Qxd4 {Menke,J (2470)-Brandhorst,W (2268) ICCF 2013 1/2-1/2 (45)} ) (5. Bg2 Nf6 6. Nf3 (6. b3 O-O 7. Nh3 Nc6 8. d5 Nb8 9. O-O Qe8 10. f3 a5 11. Nf2 Na6 12. Bh3 Qg6 13. Kh1 b6 14. Bd2 Nc5 15. Qc2 Qh5 16. a3 a4 17. Nxa4 Nxa4 {Dimitrov,M (2425)-Novák,V (2424) ICCF 2018 1/2-1/2 (39)}) (6. d5 O-O 7. Nf3 Qe8 8. O-O Qh5 9. Ne1 a5 10. f3 Na6 11. Be3 Kh8 12. Nd3 g5 13. Bf2 f4 14. g4 { Dreisch,J (1996)-Boschma,B (2208) ICCF 2017}) (6. e3 O-O 7. Nge2 c6 8. O-O Na6 9. b3 e4 10. d5 Ng4 11. f3 exf3 12. Bxf3 Bd7 13. Qd2 Ne5 14. Bg2 Nc5 15. Ba3 Qa5 16. Bxc5 dxc5 17. Rad1 Bg5 {Schwarz,J (2331)-Maldonado Pacheco,J (2346) ICCF 2016 1/2-1/2 (39)}) (6. Nh3 c6 (6... O-O 7. O-O Qe8 8. e3 c6 9. b3 Na6 10. Ba3 Bd7 11. f3 Rd8 12. Rc1 Nc7 13. Re1 Qf7 14. Nf2 Rfe8 15. Qc2 exd4 16. exd4 f4 17. Qd2 fxg3 18. hxg3 {Nývlt,Z (2457)-De Carlos Arregui,I (2479) ICCF 2019 1/2-1/2 (52)}) 7. b3 O-O 8. O-O Na6 9. Ba3 Bd7 10. Qd2 Qe8 11. Rad1 Rd8 12. f3 b5 13. dxe5 dxe5 14. Bxe7 Qxe7 15. cxb5 cxb5 16. Qd6 Qxd6 17. Rxd6 Nb8 { Sacripanti,G (2336)-Iacomi,S (2343) ICCF 2020 1/2-1/2 (26)}) 6... e4 7. Ng5 c6 8. O-O (8. Nh3 O-O (8... Na6 9. O-O Nc7 10. d5 O-O 11. a4 Qe8 12. Nf4 (12. f3 exf3 13. exf3 h6 14. Nf4 Qf7 15. Re1 Re8 16. b3 g5 17. Nfe2 cxd5 18. Nb5 Nxb5 19. cxb5 Bd8 20. a5 Bd7 21. Nd4 Rc8 22. Be3 Nh5 23. Bf2 {Bennewitz,B (1973) -Tarmak,M (1813) ICCF 2009 1/2-1/2 (51)}) 12... cxd5 13. cxd5 b5 14. axb5 Nxb5 15. Bd2 a5 16. h4 h6 17. Nxb5 Qxb5 18. Bc3 Bd7 19. Qd2 a4 20. Rfd1 {Dantas,R (2206)-Hild,H (2211) ICCF 2017 1/2-1/2 (51)}) 9. d5 (9. O-O Na6 10. d5 Qa5 11. Qd2 Qc5 12. b3 cxd5 13. cxd5 Ng4 14. Nd1 Bf6 15. Rb1 Be5 16. Nf4 Qb4 17. f3 Nf6 18. Ne3 Re8 19. fxe4 Qxd2 20. Bxd2 Bd4 {Sethuraman,S-Siikaluoma,A (2537) ICCF 2015 0-1}) 9... Qa5 10. Qd2 (10. O-O Qb4 11. Qb3 Na6 12. Qxb4 Nxb4 13. a3 Nc2 14. Ra2 Nd4 15. b4 a5 16. b5 cxd5 17. Be3 Nb3 18. Nxd5 Nxd5 19. cxd5 Bd7 20. b6 Rfc8 21. g4 {Englund,J (1881)-Gaboleiro,G (1776) ICCF 2012 1/2-1/2 (92)}) 10... Qc5 11. b3 cxd5 12. cxd5 a5 13. O-O Na6 14. Bb2 Qb4 15. Nf4 Nc5 16. Rfd1 Bd7 17. Rac1 Rac8 18. h3 Ne8 19. h4 Bf6 {Fedukin,A (2115)-Pinho,M (2244) ICCF 2018 1/2-1/2}) (8. d5 Ng4 (8... h6 9. Nh3 Nbd7 10. O-O Ne5 11. b3 O-O 12. Bb2 Qa5 13. Qd2 cxd5 14. Nxe4 Qxd2 15. Nxd2 dxc4 16. bxc4 Be6 17. Nf4 Bf7 18. Rab1 Rab8 19. Rfc1 Rfc8 20. Bd4 {Nývlt,Z (2502)-Vozda,J (2458) ICCF 2006 0-1 (55)}) 9. h4 Ne5 10. f4 Ng4 11. Bh3 h6 12. Ne6 Bxe6 13. Bxg4 Bxd5 14. Bxf5 Bxc4 15. Bg6+ Bf7 16. Bxf7+ Kxf7 17. Qb3+ d5 18. Qxb7 Nd7 19. Qxc6 Nf6 {Revell,P (2260)-Green,A ICCF 2013 1/2-1/2 (44)}) 8... d5 9. cxd5 (9. Qb3 h6 10. Nh3 g5 11. cxd5 cxd5 12. Be3 Nc6 13. Rac1 Na5 14. Qc2 Bd7 15. b3 Ba3 16. Rb1 Rc8 17. Bc1 Bb4 18. Bb2 f4 19. a3 Bxc3 20. Bxc3 Nc6 {Frith,S-Cook,D ICCF 2012 0-1 (28)}) 9... cxd5 10. Nh3 Be6 11. Bg5 Nc6 12. e3 Ng4 13. Nf4 Bf7 14. Bxe7 Nxe7 15. Qa4+ Qd7 16. Rac1 Qxa4 {Kuula,R-Varonen,H ICCF 2009 1-0 (56)}) 5... dxe5 6. Qxd8+ (6. Qd5 Nd7 7. Nf3 c6 8. Qd1 e4 9. Nd4 Ne5 10. b3 Bf6 11. Bb2 Nxc4 12. bxc4 Bxd4 13. e3 Bf6 14. Qxd8+ Kxd8 15. O-O-O+ Kc7 16. Be2 Nh6 17. h3 Be6 {Enoksson,B (1667) -Bernholdsson,S ICCF 2012 0-1 (34)}) 6... Bxd8 7. Bg2 (7. b3 Nf6 8. Nf3 (8. Bb2 Nc6 9. Bg2 Kf7 10. Bxc6 bxc6 11. Nf3 Nd7 12. Na4 Bf6 13. O-O g5 14. Ne1 Re8 15. f3 Kg6 16. Rd1 Rb8 17. Bc3 Be7 18. Nd3 Bd6 19. e4 fxe4 {Varela Mourín,J (2259) -De Carlos Arregui,I (2361) ICCF 2011 1/2-1/2 (104)}) 8... Nc6 9. Bh3 e4 10. Nh4 Nd4 11. O-O c6 12. Bb2 g6 13. Rad1 Ne6 14. Nxe4 fxe4 15. Bxe6 Bxe6 16. Rxd8+ Rxd8 17. Bxf6 O-O 18. Bxd8 Rxd8 {Abbey,W (2063)-Evans,S (1803) ICCF 2016 1/2-1/2 (26)}) (7. e4 Nf6 8. Bd3 fxe4 9. Nxe4 Nc6 10. Be3 Be7 11. Nf3 Ng4 12. Ke2 O-O 13. h3 Nxe3 14. fxe3 g6 15. Rad1 Kg7 16. Nc3 Be6 17. Nd5 Bd6 18. Ng5 Bg8 {Pirrone,M (2231)-Jensen,K (2219) ICCF 2010 1/2-1/2 (26)}) 7... Nf6 8. b3 c6 (8... Nbd7 9. Bb2 c6 10. Nf3 O-O 11. O-O Ba5 12. Rfd1 e4 13. Nd4 Ne5 14. Na4 Re8 15. Bc1 Bd8 16. Bd2 Be7 17. Bc3 Ng6 18. e3 Bd7 19. Bf1 Kf7 20. Rd2 { Stronsky,V (2433)-Hrubcík,M (2425) ICCF 2018 1/2-1/2 (34)}) 9. Bb2 O-O (9... Bb6 10. e3 O-O 11. Nge2 Be6 12. Rd1 Na6 13. O-O Nc5 14. Nc1 e4 15. N3e2 Kf7 16. h4 Rad8 17. Nf4 Bc8 18. Bd4 g6 19. a4 Na6 20. Bxb6 axb6 21. Nfe2 {Ananikian, A-Mende,I (2259) ICCF 2011 1/2-1/2 (38)}) 10. Nf3 Re8 11. O-O Na6 12. Rad1 (12. Rfd1 Bc7 13. Rab1 Bd7 14. a3 Rad8 15. b4 Nb8 16. Na4 b6 17. Nc3 Be6 18. Bh3 Rxd1+ 19. Rxd1 h6 20. b5 Kf8 21. Nh4 Bxc4 22. Nxf5 cxb5 23. Rc1 Nc6 {Overton,D (2444)-Rhodes,J (2429) ICCF 2009 1/2-1/2 (36)}) 12... Bc7 13. Nh4 (13. Rd2 Nc5 14. Rfd1 Nce4 15. Rc2 Nxf2 16. Kxf2 Ng4+ 17. Ke1 Ne3 18. Rcc1 f4 19. Bh1 e4 20. Nd4 fxg3 21. hxg3 Bxg3+ 22. Kd2 Bf4 23. Ke1 Nxd1 24. Rxd1 e3 {Paluch,A (2101) -Zieba,Z (2163) ICCF 2012 1/2-1/2 (50)}) 13... Nc5 14. Bh3 g6 15. Ng2 Be6 16. Ne3 {Kries,Y-De Carlos Arregui,I (2348) ICCF 2006 0-1 (40)}) (4... e4 5. f3 exf3 (5... Nf6 6. Bg2 exf3 7. exf3 Nc6 8. d5 Ne5 9. f4 Ned7 10. Nge2 a5 11. O-O Be7 12. Re1 Nc5 13. b3 O-O 14. Nd4 Bd7 15. Ba3 Re8 16. Qc2 g6 17. Qd2 {Bruce,R (1971)-Dreisch,J (1970) ICCF 2017 0-1 (58)}) 6. Nxf3 (6. exf3 Nf6 7. Nh3 Be7 8. Bg2 O-O 9. O-O Re8 10. Re1 Nc6 11. Be3 Bf8 12. Nf4 g6 13. d5 Ne5 14. Qb3 Qe7 15. Bd4 c5 16. dxc6 bxc6 17. c5+ Qf7 {Leupold,V (2547)-Legemaat,G (2390) ICCF 2008 1-0 (71)}) 6... Nf6 7. Bf4 (7. Bg2 Be7 (7... g6 8. O-O Bg7 9. Bg5 O-O 10. e4 h6 11. Bxf6 Qxf6 12. Kh1 Nc6 13. Nd5 Qd8 14. Nh4 Nxd4 15. Nxg6 Rf7 16. exf5 Bxf5 17. Qh5 Qd7 18. Rxf5 Rxf5 19. Nde7+ {Lewis,C (1982)-Rabczewski,A (1977) ICCF 2020 1-0 (25)}) 8. Qd3 (8. O-O O-O 9. d5 Na6 10. Nd4 Ng4 11. e4 fxe4 12. Nxe4 Rxf1+ 13. Qxf1 Qe8 14. Qe2 Ne5 15. Nf2 Bf6 16. Bf4 Nc5 17. b4 Na4 18. Rf1 a5 19. a3 Nb6 {Pfalz,J (2081)-Fric,P (2034) ICCF 2007 1/2-1/2 (47)}) 8... O-O 9. O-O c6 (9... Re8 10. a3 c6 11. Bf4 Nbd7 12. Rad1 Nb6 13. d5 cxd5 14. cxd5 g6 15. Nd4 Bd7 16. e4 fxe4 17. Bxe4 Nxe4 18. Nxe4 Bh3 19. Ne6 Bxe6 20. dxe6 d5 21. Bh6 {Coyne,D-Gardner,A ICCF 2008 1-0}) 10. Nh4 g6 11. Bg5 Nbd7 12. Rae1 Kg7 13. e4 h6 14. Nxg6 Kxg6 15. exf5+ Kg7 16. Bh4 Rf7 17. Qf3 Nf8 18. Ne4 N8h7 { Wark,P (1857)-Groenhout,R (1792) ICCF 2013 0-1 (32)}) 7... Be7 8. Qc2 Be6 9. O-O-O Bxc4 10. Qa4+ b5 11. Nxb5 Bxb5 12. Qxb5+ c6 13. Qxf5 O-O 14. Ng5 Qb6 15. Qe6+ Kh8 16. Qxe7 {Menéndez Rodríguez,G (2191)-Devaraj,V ICCF 2013 1-0 (34)}) ( 4... exd4 5. Qxd4 Nc6 (5... Nf6 6. Bg5 Be7 7. Bg2 O-O 8. O-O-O Nc6 9. Qd2 Kh8 10. h4 Ne5 11. b3 a5 12. Nh3 c6 13. a4 Be6 14. Nf4 Bg8 15. Qb2 Qc8 16. h5 Rb8 17. Ng6+ {Priest,S (1808)-Groenhout,R (1796) ICCF 2015 1-0 (43)}) 6. Qd2 Nf6 7. Bg2 g6 8. b3 Bg7 9. Bb2 O-O 10. Nh3 Ne4 11. Nxe4 fxe4 12. Bxg7 Kxg7 13. Ng5 Qf6 14. O-O e3 15. Qxe3 Bf5 16. Ne4 {Carre,C-Cordel,Y ICCF 2007 1-0 (29)}) 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. Bg5 (7. Nf3 e4 8. Nd4 Nc6 9. Nxc6+ bxc6 10. f3 Be6 11. Bg5 Kc8 12. O-O-O Kb7 13. Bh3 exf3 14. exf3 Bxc4 15. Bxf5 Nd5 16. Rd4 Nb6 17. Rh4 h6 18. Be3 Bf7 {Pessoa,F (2503)-Colin,S (2421) ICCF 2018 1/2-1/2 (62)}) 7... Be6 8. O-O-O+ Ke8 9. Nf3 Nbd7 10. Nb5 Bd6 11. b3 Ke7 12. Bg2 a6 13. Nxd6 cxd6 14. Nh4 Rab8 15. f4 (15. e4 fxe4 16. Bxe4 b5 17. cxb5 Rxb5 18. Rhe1 a5 19. Bd3 Rc8+ 20. Kb2 Rb6 21. Bxh7 a4 22. Be3 Nc5 23. Bxc5 Rxc5 24. Bf5 Bd5 25. Ng6+ Kd8 26. Re3 e4 {Rydholm,L (2511)-Colin,S (2421) ICCF 2018 1/2-1/2 (27)}) 15... Rhc8 16. fxe5 dxe5 17. Kb2 b5 18. cxb5 Rxb5 19. e4 fxe4 20. Bxe4 h6 21. Bxf6+ gxf6 22. Nf5+ Bxf5 23. Bxf5 Rc7 24. Rc1 Rbc5 25. Rxc5 (25. Rhd1 Rxc1 26. Rxc1 Rxc1 27. Kxc1 a5 {1/2-1/2 (27) Klewe,W (2219)-Hild,H (2211) ICCF 2017}) 25... Nxc5 26. Rc1 (26. Rd1 a5 27. Rd5 h5 28. Rd2 Rb7 29. Rc2 Kd6 30. Rc4 Rg7 31. Rh4 Rg5 32. Bc2 Ne6 33. Ra4 Nd4 34. Rxa5 h4 35. Bd3 hxg3 36. hxg3 {1/2-1/2 (36) Zhak,B (2653)-Cruzado Dueñas,C (2584) ICCF 2010}) 26... Kd6 27. Rd1+ Ke7 28. b4 Ne6 29. Rd5 Rb7 30. a3 Rb5 31. Be4 Nc7 32. Rd1 Ne6 33. Bd3 Rd5 34. Be2 Rxd1 35. Bxd1 f5 36. Be2 Nc7 37. Kb3 Kd6 38. Kc4 Nd5 39. Kd3 Kc6 40. Bf1 Kd6 41. h3 Kc6 42. Kd2 Kb6 43. Bc4 Nf6 44. Bd3 Nh5 45. Bxf5 Nxg3 46. Bg6 a5 47. bxa5+ Kxa5 48. Ke3 Ka4 {1/2-1/2 (48) Tõnisson,P (2354)-De Carlos Arregui,I (2365) ICCF 2013 English Opening: 1...e5-2 Nc3}) 4... Be7 5. h4 Nf6 6. Bg2 c6 7. Bg5 Ng4 8. Nh3 O-O 9. f3 Bxg5 10. fxg4 Be3 11. Rf1 f4 12. Rf3 Bxg4 13. Rxe3 fxe3 14. Qc1 Qd7 15. Ng1 {Azzoug,S (1631)-Blondel,F (1997) ICCF 2015 0-1}) (3... c6 4. d4 (4. Bg2 Ne7 (4... Bf5 5. d4 Nd7 6. Nf3 e4 7. Nh4 Bg6 8. Nxg6 hxg6 9. Nxe4 Qc7 10. O-O O-O-O 11. b4 f5 12. Ng5 {1-0 (12) Gullotto,V (2302)-Pereyra,D (1584) ICCF 2017}) 5. d4 Nf5 6. e3 f6 7. Nge2 d5 8. cxd5 Bb4 9. dxe5 Bxc3+ 10. Nxc3 fxe5 11. e4 Nd6 12. Qh5+ g6 13. Qxe5+ Kd7 14. Bf4 Nf7 15. Bh3# {1-0 (15) Kemperman, H (1651)-Ketelaars,A ICCF 2018}) 4... Qe7 5. e4 Nd7 6. Nge2 Ndf6 7. Bg2 Bd7 8. O-O O-O-O 9. b4 h5 10. h4 Kb8 11. Qb3 Nh7 12. b5 f5 13. exf5 cxb5 14. a4 Bxf5 15. axb5 {Farias,S (2271)-Pereyra,D (1601) ICCF 2017 1-0}) (3... Ne7 4. Bg2 Nec6 5. Nf3 Be7 6. d3 O-O 7. O-O Be6 8. a3 f5 9. b4 Qd7 10. Ng5 Bxg5 11. Bxg5 h6 12. Bd2 Nd8 13. b5 c6 14. a4 Qf7 15. Rb1 {Linden,W (1894)-Pajukari,S (1752) ICCF 2015 1-0 (37)}) (3... h6 4. Bg2 Nf6 5. d4 c6 6. e4 exd4 7. Qxd4 Be7 8. Nf3 O-O 9. O-O Be6 10. Rd1 Nbd7 11. Bf4 Qa5 12. Qd2 Rfe8 13. Nd4 Nb6 14. Nxe6 fxe6 15. Qe2 {Moran,R (1867)-Bearce,H (1621) ICCF 2015 1-0}) 4. Bg2 (4. d4 exd4 5. Qxd4 Nf6 6. Bg2 Bg7 (6... Nbd7 7. Nf3 Bg7 8. Qe3+ Qe7 9. Nb5 Qxe3 10. Bxe3 Kd8 11. O-O Re8 12. Ng5 Re7 13. Bd4 h6 14. Ne4 a6 15. Nbc3 Nxe4 16. Bxg7 f6 17. Nxe4 Rxg7 18. Rad1 {Kozlov,V (2406)-Leupold,V (2385) ICCF 2014 1/2-1/2 (55)}) 7. Qe3+ Qe7 8. Qxe7+ (8. Nh3 Nc6 9. Qxe7+ Nxe7 10. Nb5 Kd7 11. O-O c6 12. Nc3 Rd8 13. e4 Ke8 14. Nf4 Nd7 15. Bd2 a5 16. Rac1 a4 17. Bf3 Nc5 18. Rfe1 b6 19. Be2 Kd7 {Kaan,J (2277)-Voiculescu,C (2458) ICCF 2017 1/2-1/2 (70)}) 8... Kxe7 9. Be3 c6 10. Rb1 a5 11. Nf3 a4 12. O-O Nbd7 13. b3 axb3 14. axb3 Re8 15. b4 Ng4 {Ottesen,S (2365)-Vicioso Sánchez,M (2290) ICCF 2017 1/2-1/2 (25)}) 4... Bg7 (4... c6 5. d4 Bg7 6. Nf3 exd4 7. Nxd4 Nf6 8. O-O O-O 9. e4 Re8 10. h3 a6 11. Be3 c5 12. Nde2 Be6 13. b3 Nc6 14. Qd2 Qd7 15. Nf4 Bh6 16. Nfd5 {Ranieri,A (1775)-Parente,M (1548) ICCF 2016 1-0 (27)}) 5. d3 (5. Nf3 f5 6. O-O Ne7 (6... Nf6 7. d4 e4 8. Ne1 (8. Ng5 c6 9. d5 cxd5 10. Nxd5 O-O 11. Nh3 Be6 12. Nhf4 Bf7 13. Nxf6+ Bxf6 14. Nd5 Nc6 15. Bh6 Bg7 16. Bxg7 Kxg7 17. Qb3 Ne5 18. Rfd1 Qc8 19. Rac1 Qc5 {Guerra,R (2217)-Shishkov,P (2340) ICCF 2008 1/2-1/2 (53)}) 8... O-O 9. f3 Nc6 10. Nc2 exf3 11. Bxf3 Ne7 12. Qd3 c6 13. Bf4 h6 14. Rad1 g5 15. Bc1 d5 16. b3 Be6 17. Ba3 Re8 18. Ne3 {Arcenegui Rodrigo,J-Alonso González,C ICCF 2006 1/2-1/2 (43)}) 7. d4 e4 8. Ne1 Nbc6 9. Nc2 d5 10. cxd5 Nxd5 11. f3 exf3 12. Bxf3 Nb6 13. Bxc6+ bxc6 14. Qd3 O-O 15. Bf4 Qe7 16. Rae1 a5 { Gorbatyuk,V-Demchenko,I (2155) ICCF 2015 0-1 (46)}) (5. e3 Ne7 (5... Nf6 6. d4 O-O 7. Nf3 Bg4 8. dxe5 Nfd7 9. exd6 Ne5 10. c5 Nbc6 11. Nd5 cxd6 12. cxd6 Qa5+ 13. Nc3 Nxf3+ 14. Bxf3 Bxf3 15. Qxf3 Bxc3+ 16. bxc3 Qxc3+ {0-1 (16) Yonkers,J (1845)-Patel,M ICCF 2018}) 6. Nge2 O-O 7. O-O (7. b3 Nbc6 8. d4 exd4 9. exd4 Nf5 10. d5 Ncd4 11. Rb1 Re8 12. O-O Bd7 13. Nxd4 Nxd4 14. Ne4 Bf5 15. Re1 Qd7 16. Bb2 Bxe4 17. Bxe4 c5 18. dxc6 Nxc6 {Beltins,G (2071)-Dumont,G (1626) ICCF 2018 1-0 (46)}) 7... c6 (7... a5 8. b3 f5 9. d4 g5 10. dxe5 dxe5 11. Ba3 Nbc6 12. Bxc6 Nxc6 13. Bxf8 Qxf8 14. f3 Be6 15. Nd5 Rd8 16. Qe1 {Frömbgen,A (2108) -Simeonov,T ICCF 2019 1-0 (57)}) 8. d4 exd4 9. exd4 b6 10. Be3 Bb7 11. Qd2 Nf5 12. Rad1 Nxe3 13. fxe3 Nd7 14. e4 Qc7 15. b3 Rfe8 16. Nf4 Rad8 {Whymark,D (1806)-Law,K (1174) ICCF 2020 1-0 (52)}) (5. b4 f5 6. Rb1 Nf6 7. d3 (7. Nh3 O-O 8. O-O h6 9. e3 a6 10. d4 c6 11. Qc2 Be6 12. c5 g5 13. dxe5 dxe5 14. f3 Qe7 15. Nf2 a5 16. b5 Qxc5 17. Nd3 Qd6 18. bxc6 Nxc6 {Beyer Lecaros,A (2020)-Fritsche, F (2328) ICCF 2016 0-1 (38)}) 7... O-O 8. Nf3 (8. e3 Qe7 9. Nge2 a6 10. O-O c6 11. a4 Be6 12. Ba3 Nbd7 13. b5 axb5 14. cxb5 Rfc8 15. bxc6 bxc6 16. Rb7 Bf8 17. Qd2 Qd8 18. Rfb1 Bf7 19. d4 e4 {Smit,F (1919)-Vetter,G (2294) ICCF 2021 1/2-1/2 }) 8... Qe7 (8... a5 9. a3 (9. b5 Nbd7 10. O-O Nc5 11. Nd2 Ne6 12. Ba3 Rf7 13. e3 Rb8 14. Re1 b6 15. Nd5 Bb7 16. Qc2 f4 17. Bb2 fxe3 18. fxe3 {Moreira, J-Kovac,S (2238) ICCF 2009 0-1 (28)}) 9... axb4 10. axb4 Nc6 11. b5 Nb8 12. O-O Nbd7 13. e3 Nc5 14. Bb2 Qe7 15. d4 Ncd7 16. Ra1 Rxa1 17. Qxa1 e4 18. Nd2 h5 19. Qa5 Nb6 20. c5 {Sánchez Bermúdez,R-Buchaillot,L (2181) ICCF 2017 1/2-1/2 (33)}) 9. a4 c6 10. O-O Na6 11. Nd2 Nc7 12. b5 Bd7 13. Nb3 a6 14. bxc6 bxc6 15. Na5 e4 16. Rb7 Rfc8 {Vecek,M (2266)-Smotrytsky,O (2048) ICCF 2017 1-0 (36)}) (5. e4 Ne7 (5... h5 6. Nf3 (6. h3 Nc6 7. Nf3 Nf6 8. d3 Nh7 9. Bd2 Bd7 10. Nd5 Nd4 11. Nxd4 exd4 12. Qb3 c6 13. Nf4 Qc7 14. Qa3 a6 15. Ne2 h4 16. O-O-O hxg3 17. fxg3 Be5 {Ludgate,A (2498)-Murray,T (2611) ICCF 2006 1-0 (70)}) (6. Nge2 h4 7. h3 hxg3 8. fxg3 c6 9. d3 Be6 10. Be3 Nd7 11. Qd2 a6 12. Ng1 Ne7 13. O-O-O b5 14. Kb1 Rb8 15. Nf3 bxc4 16. dxc4 Nb6 17. Bxb6 Qxb6 {Siefring,C (2479)-Zaas,D ICCF 2012 1/2-1/2 (37)}) (6. h4 Be6 7. d3 Nf6 8. Nge2 c6 9. b4 O-O 10. Rb1 Nbd7 11. O-O a6 12. a4 a5 13. Ba3 axb4 14. Bxb4 Qe7 15. Qb3 Rfb8 16. Nd5 cxd5 17. cxd5 Bg4 {McMillan,N (2020)-Keber,E (1973) ICCF 2012 0-1}) 6... Bg4 7. h3 Bxf3 8. Bxf3 Nc6 9. d3 h4 10. Be3 hxg3 11. fxg3 Bh6 12. Bxh6 Rxh6 13. Qd2 Qd7 14. Bg2 Nd4 15. O-O-O O-O-O 16. h4 Kb8 17. Rdf1 {Ludgate,A (2515)-Stephan,J (2555) ICCF 2010 1/2-1/2 (26)}) 6. Nge2 O-O (6... Be6 7. d3 O-O 8. h4 h6 9. h5 c6 10. hxg6 fxg6 11. Bxh6 Qb6 12. Be3 Qa5 13. Qd2 Nd7 14. Bh6 Rf7 15. Bxg7 Rxg7 16. f4 Qb6 17. O-O-O exf4 18. gxf4 {Lugli,A-Esposito,L ICCF 2013 1-0 (30)}) 7. d4 (7. O-O Be6 8. d3 Qd7 9. Rb1 c5 10. b4 cxb4 11. Rxb4 Na6 12. Rb2 Nc6 13. f4 Nc5 14. Kh1 f5 15. Nd5 fxe4 16. dxe4 Rae8 17. Rb1 exf4 18. Nexf4 Bg4 {Vötter,H (2073) -Köstner,W (2366) ICCF 2020 0-1 (26)}) 7... exd4 8. Nxd4 Nbc6 9. Be3 Ne5 10. b3 Bg4 11. f3 c5 12. fxg4 Nxg4 13. Bg1 cxd4 14. Bxd4 Ne3 15. Bxe3 Bxc3+ 16. Kf2 Bxa1 {Knöppel,B (2047)-Szymanski,R (2360) ICCF 2020 0-1 (54)}) (5. Rb1 Ne7 6. b4 (6. e3 O-O 7. Nge2 c5 8. b4 Bf5 9. Ne4 Na6 10. b5 Nb4 11. d3 Nxa2 12. Bd2 a6 13. bxa6 Rxa6 14. Rxb7 Nc6 15. Rb3 Nab4 16. O-O Bg4 17. f3 Be6 {Blanco,H (2378) -Ingersol,H (2420) ICCF 2017 0-1 (46)}) 6... O-O 7. d3 c6 8. e4 Na6 9. Nge2 f5 10. exf5 Bxf5 11. O-O Qd7 12. a4 Nc7 13. b5 Ne6 14. a5 Kh8 15. Ne4 c5 16. Be3 b6 {Zhdanenia,K (2305)-Komarica,B (2261) ICCF 2019 1/2-1/2 (52)}) 5... f5 (5... Be6 6. Bxb7 Nd7 7. Bxa8 Qxa8 8. e4 c6 9. Nf3 Ngf6 10. Ng5 O-O 11. Nxe6 fxe6 12. f3 d5 13. cxd5 exd5 14. O-O d4 15. Nb1 Nh5 16. Na3 Nc5 17. Nc4 {Deacon,G (1759) -Roberts,G (1789) ICCF 2018 1-0 (36)}) (5... c6 6. Nf3 Ne7 7. O-O Be6 8. Qb3 Qc7 9. Ng5 Bd7 10. c5 d5 11. e4 d4 12. Qxf7+ {1-0 (12) Meyer,F (2056)-Himpel,R (1923) ICCF 2016}) (5... Ne7 6. h4 (6. e4 Nd7 (6... O-O 7. Nge2 Nd7 (7... c5 8. a3 (8. O-O a6 9. a3 Nbc6 10. Rb1 Be6 11. f4 Qd7 12. Nd5 Rab8 13. b4 b5 14. bxc5 dxc5 15. Be3 exf4 16. Bxc5 fxg3 17. Nxg3 Rfc8 18. Kh1 bxc4 19. dxc4 Rxb1 { Larsen,A (2084)-Jensen,C (2291) ICCF 2010 0-1 (49)}) 8... Nbc6 9. Rb1 b6 10. b4 Nd4 11. O-O Bg4 12. f3 Be6 13. f4 Bg4 14. h3 Bxe2 15. Nxe2 Nxe2+ 16. Qxe2 Nc6 17. f5 g5 18. f6 Bxf6 19. Qh5 {Sawatzki,J (2494)-Paul,K (2433) ICCF 1999 1/2-1/ 2}) 8. Be3 f5 9. O-O Nc5 10. Rc1 Nc6 11. Nd5 Nd4 12. b4 Nce6 13. Nxd4 exd4 14. Bd2 fxe4 15. Bxe4 c6 16. Nf4 Nxf4 17. Bxf4 Rxf4 18. gxf4 {Tibbert,P (1805) -Brotherton,T (2004) ICCF 2016 0-1 (27)}) 7. b4 Nf8 8. h4 Nc6 9. Rb1 Ne6 10. Nge2 O-O 11. h5 Ncd4 12. Qd2 Nxe2 13. Nxe2 c6 14. f4 Nc7 15. Bf3 Qe7 16. h6 Bh8 17. f5 {Salvado,S (2237)-Schöpe,H (2245) ICCF 2016 1/2-1/2 (31)}) 6... h6 7. e4 c6 (7... Nbc6 8. Nge2 Bg4 9. f3 Be6 10. Nd5 f5 11. Bd2 Qd7 12. Qb3 O-O-O 13. O-O-O Kb8 14. Kb1 Nc8 15. Rc1 Nb6 16. Be3 Rde8 17. Bh3 Rhf8 {Farias,S (2281) -Yunusov,A (2452) ICCF 2018 1/2-1/2 (27)}) 8. h5 g5 9. Nge2 Na6 10. Be3 Be6 11. f4 f6 12. Qb3 c5 13. f5 Bd7 14. Nb5 Bc6 15. g4 O-O 16. O-O-O Nc7 17. Kb1 { Hyllengren,A-Wiander,M (1880) ICCF 2009 1/2-1/2 (28)}) 6. e4 (6. Nf3 Nf6 (6... Nh6 7. Bg5 Qd7 8. Nd5 O-O 9. h4 e4 10. dxe4 fxe4 11. Nd2 Ng4 12. Nxe4 Qf7 13. f3 Bf5 14. O-O Nc6 15. fxg4 Bd4+ 16. e3 Bxe3+ 17. Nxe3 Qe6 18. gxf5 {Gajic, S-Fonseca,P (1788) ICCF 2013 1-0}) 7. O-O (7. Qb3 Nbd7 8. O-O Nc5 9. Qb4 O-O 10. Be3 e4 11. dxe4 Ncxe4 12. Nxe4 fxe4 13. Nd2 a5 14. Qa3 Bg4 15. Rfe1 Qe8 16. Bd4 Qe6 17. Bxf6 Qxf6 18. Nxe4 Qf7 {Piera i Arbat,J (1906)-Puertas Covarrubias, F (1990) ICCF 2017 0-1 (43)}) (7. e3 O-O 8. O-O Nc6 9. a3 h6 10. b4 Be6 11. Qc2 e4 12. dxe4 Nxe4 13. Bb2 Bxc4 14. Rfe1 d5 15. Nxe4 fxe4 16. Bxg7 Kxg7 17. Nd2 Bd3 18. Qc3+ Qf6 {Lewis,J (1701)-Ramsden,J (2070) ICCF 2012 0-1 (36)}) 7... O-O 8. Rb1 (8. Bg5 h6 (8... Qe8 9. Rc1 Nc6 10. Bxf6 Rxf6 11. Nd5 Rf7 12. b4 Nd8 13. Ng5 Rd7 14. e4 c6 15. Nc3 Ne6 16. Nxe6 Qxe6 17. exf5 Qxf5 18. b5 cxb5 19. cxb5 Rb8 20. Nd5 {Pajukari,S (1749)-Elfving,J (1635) ICCF 2016 1-0 (29)}) 9. Bxf6 ( 9. Be3 Nc6 10. Qb3 Qe8 11. h3 Qf7 12. Rac1 a6 13. Nd5 Rb8 14. Ne1 Be6 15. Nc2 g5 16. Rcd1 f4 17. Bd2 g4 18. Nxf6+ Qxf6 19. hxg4 Bxg4 20. c5+ Kh8 {Martins Barriga,F (2277)-Diaz,S (2515) ICCF 2013 0-1 (45)}) (9. Bd2 Nc6 10. Nh4 g5 11. Nf3 Be6 12. Rb1 Qd7 13. b4 a6 14. a3 f4 15. e4 g4 16. Nh4 f3 17. Bh1 Nh7 18. h3 Nd4 19. Be3 Ng5 20. hxg4 Bxg4 {Lewyk,I (2055)-Ackley,P (1989) ICCF 2017 0-1 (38)}) 9... Qxf6 10. Nd5 (10. Rb1 c6 11. Nd2 Be6 12. b4 e4 13. Na4 exd3 14. exd3 Qf7 15. Re1 Re8 16. a3 Qc7 17. b5 Nd7 18. Qf3 Ne5 {Rizvi,N (1799)-Edney,D (1985) ICCF 2017 0-1 (33)}) 10... Qf7 11. Qc2 c6 12. Nc3 Be6 13. Rac1 Na6 14. a3 Nc7 15. b4 Rac8 16. a4 d5 17. c5 d4 18. Nd1 Bb3 19. Qb1 Bxa4 {Linden,W (1681)-Bonaretti,A (1776) ICCF 2019 0-1 (39)}) (8. Qb3 c5 (8... Nc6 9. Be3 h6 10. Rad1 (10. h3 Qe7 11. Rac1 Qf7 12. Ne1 Nd8 13. d4 exd4 14. Bxd4 Ne6 15. Bxf6 Nc5 16. Bxg7 Nxb3 17. Bxf8 Nxc1 18. Bxh6 Nxa2 19. Nxa2 Qxc4 {Graham,S (2178) -López de Jerónimo,F (2089) ICCF 2009 1/2-1/2 (27)}) 10... Ng4 11. Bd2 Rf7 12. h3 Nf6 13. e3 Qe8 14. Nh2 a5 15. Nd5 a4 16. Nxf6+ Rxf6 17. Qc2 g5 18. Bc3 Rf8 19. Rfe1 Qg6 {Marrocco,D-Caponi,S ICCF 2012 0-1 (56)}) (8... Kh8 9. Bg5 Nbd7 10. Qa3 h6 11. Be3 Re8 12. h3 a6 13. Rac1 Nf8 14. c5 d5 15. d4 exd4 16. Bxd4 c6 17. e3 Be6 18. Ne2 N8d7 19. Nf4 Bf7 {Segalla,J (2369)-Piccoli,F (2147) ICCF 2006 1/2-1/2 (56)}) 9. Bg5 Nc6 10. Nd5 Rb8 11. a3 Be6 12. e3 b5 13. Nd2 bxc4 14. Qxc4 Ne7 15. Bxf6 Bxf6 16. Nxf6+ Rxf6 17. Qh4 g5 18. Qxg5+ Rg6 19. Qh5 Rxb2 {Hafner,M (2494)-Thaler,A (2551) ICCF 2004 1/2-1/2 (50)}) (8. Bd2 h6 (8... c6 9. b4 {1-0 (9) Beavan,R (1894)-Delgado,E (1634) ICCF 2016}) (8... Nh5 9. Qc1 f4 10. Ne4 Nc6 11. e3 Bh6 12. b4 a5 13. b5 Nb4 14. Qb1 d5 15. cxd5 Nxd5 16. Nxe5 fxe3 17. fxe3 Bxe3+ 18. Bxe3 Nxe3 19. Qb3+ Kg7 {Puertas Covarrubias,F (1975) -Ramos Mora,J (2031) ICCF 2009 1-0}) 9. Rb1 (9. a3 g5 10. Rc1 {0-1 (10) Allen, E-Schmidt,T (2136) ICCF 2017}) 9... Nc6 10. b4 Be6 11. Ne1 Rb8 12. b5 Ne7 13. Nc2 c5 14. a4 d5 15. cxd5 Nfxd5 16. Nxd5 Bxd5 17. Bxd5+ Qxd5 18. Ne3 Qf7 19. Qb3 Qxb3 {Badger,J (1732)-Thau,O (1739) ICCF 2020 1/2-1/2 (28)}) (8. c5 Nc6 9. cxd6 cxd6 10. Qb3+ Kh8 11. Be3 h6 12. Rad1 Qe7 13. Qa3 g5 14. h4 f4 15. hxg5 hxg5 16. Bd2 Bh6 17. Nb5 Rd8 18. e3 a6 19. Nc3 Qf7 {Halaf,B (2122)-Har-Even,A (2430) ICCF 2012 0-1 (26)}) (8. d4 e4 9. Ne1 Nc6 10. f3 Re8 11. e3 exf3 12. Bxf3 Qd7 13. Bd2 Nd8 14. Nd3 c6 15. Qb3 Nf7 16. Bg2 Qc7 17. Rae1 Bd7 18. Re2 Ng5 19. Nf2 Rad8 {Csiba,T-Case,W ICCF 2011 1/2-1/2 (52)}) 8... a5 (8... h6 9. b4 (9. Qc2 g5 10. b4 f4 11. a4 Nc6 12. b5 Ne7 13. Nd2 Rb8 14. Bb2 {1/2-1/2 (14) Verweij,M-Sandström,L (2038) ICCF 2009}) 9... g5 (9... a6 10. e4 (10. a4 Nc6 11. Qc2 a5 12. b5 Nb4 13. Qd2 c5 14. bxc6 bxc6 15. Na2 e4 16. Ne1 c5 17. Nc3 Bb7 18. Bb2 d5 19. cxd5 Nfxd5 20. Nxd5 Bxd5 21. Bxg7 Kxg7 {Morley,P (2241) -Dubuc,S (2448) ICCF 2008 1/2-1/2 (49)}) 10... fxe4 11. dxe4 Be6 12. Nd5 Kh7 13. Nh4 c6 14. Ne3 b5 15. Qc2 Ng4 16. Nxg4 Bxg4 17. f4 Bf6 18. f5 Bxh4 19. gxh4 gxf5 20. exf5 Qf6 21. Rb3 {Cardoso García,S (2259)-Pichushkin,V (2212) ICCF 2016 1-0 (53)}) 10. c5 (10. Nd2 Nc6 11. b5 Nd4 12. e3 Ne6 13. a4 Kh8 14. Qc2 f4 15. a5 g4 16. Rd1 f3 17. Bf1 a6 18. b6 c6 19. Nde4 Qe7 20. Ba3 Rd8 21. Nxf6 Bxf6 {Hospers,B (2019)-Vötter,H (2390) ICCF 2016 0-1 (43)}) (10. b5 Nbd7 (10... a6 11. a4 axb5 12. axb5 Nbd7 13. Bb2 Qe8 14. Nd2 Nc5 15. Nb3 Ne6 16. Nd5 g4 17. Nxf6+ Bxf6 18. e3 Ng5 19. Nd2 c6 20. f4 Nh3+ 21. Bxh3 gxh3 22. Rf2 {Nicholson, M (2476)-Tienhoven,R (2416) ICCF 2014 1/2-1/2 (46)}) 11. a4 a6 12. Ba3 axb5 13. Nxb5 e4 14. Nd2 e3 15. fxe3 Ng4 16. c5 Nxc5 17. Nc4 Qe7 18. Qc2 Re8 19. e4 fxe4 20. dxe4 Nxe4 21. e3 Ngf6 {Syafrial,N-Davidson,J (2072) ICCF 2019 1/2-1/2 (31)} ) (10. Ne1 Nc6 11. e3 Ne7 12. f4 Ng4 13. fxg5 hxg5 14. Nf3 Ng6 15. Bd2 Be6 16. b5 c6 17. bxc6 bxc6 18. h3 Nh6 19. Qa4 g4 20. hxg4 Nxg4 21. Bh3 Rc8 {González Rabago,N (2487)-Holroyd,K (2487) ICCF 2019 1/2-1/2 (44)}) (10. Qa4 Qe8 11. Qa3 e4 12. Nd4 Qh5 13. Ncb5 Na6 14. c5 dxc5 15. bxc5 c6 16. Nd6 Ng4 17. h3 Nxf2 { Cárdenas Huaman,A (2085)-Scharf,N (2066) ICCF 2010 1-0 (36)}) (10. Qb3 Qe8 11. Nd5 Nxd5 12. cxd5 Bf6 13. Bb2 Nd7 14. Rfc1 Bd8 15. a4 Nb6 16. b5 a5 17. Nd2 f4 18. Nc4 Nxc4 19. dxc4 {1-0 (19) MacMillen,A (1551)-Reese,K ICCF 2017}) 10... Qe7 11. Ba3 dxc5 12. bxc5 Nc6 13. h4 g4 14. Nd2 Rd8 15. Qb3+ Kh8 16. Nc4 f4 17. Qa4 f3 18. exf3 Rxd3 19. fxg4 Rxc3 20. g5 {Winbush,J (1887)-Vötter,H (2401) ICCF 2016 0-1}) (8... c6 9. b4 (9. Bd2 Qe7 10. b4 e4 11. dxe4 fxe4 12. Nd4 Nbd7 13. Qb3 a5 14. a3 Ng4 15. e3 axb4 16. axb4 Ndf6 17. c5+ d5 18. b5 Bd7 19. Na4 Nxh2 20. Kxh2 Ng4+ {Beckett,P (2015)-Herriot,B (2114) ICCF 2012 0-1 (26)}) 9... h6 10. h3 Be6 11. b5 Qc7 12. Qa4 Re8 13. bxc6 bxc6 14. Be3 Nbd7 15. Nd2 d5 16. cxd5 Nxd5 17. Nxd5 cxd5 18. Rfc1 Qd8 19. Nb3 Nb6 20. Qb5 {Brunori,G-Winges,M ICCF 2006 1-0 (61)}) 9. c5 (9. a3 h6 10. b4 axb4 11. axb4 g5 (11... Be6 12. Qb3 c6 13. b5 Bf7 14. e4 fxe4 15. Nxe4 Nxe4 16. dxe4 Qc7 17. Qb4 c5 18. Qb3 Nd7 { Brotherton,T (2198)-Grayland,S (2347) ICCF 2020 1/2-1/2 (28)}) 12. Bb2 Be6 13. Ra1 Rxa1 14. Qxa1 Nbd7 15. Nb5 Ne8 16. Qa5 Bf6 17. Nc3 b6 18. Qa4 Qe7 19. Nd2 Qf7 20. Bd5 Bxd5 {Mehlhorn,U (2376)-Fabig,H (2357) ICCF 2018 1/2-1/2 (35)}) (9. Qb3 Nc6 (9... Kh8 10. a3 Na6 11. Be3 Qe7 12. Qc2 Nc5 13. Ng5 Ng4 14. Bd2 a4 15. h3 Nf6 16. Be3 c6 17. Nf3 Nfd7 18. Bg5 Qe8 19. Rbd1 Ne6 {Hyllengren,A (2170) -Nucci,L (2180) ICCF 2011 0-1 (39)}) 10. Be3 Qd7 11. Rfd1 a4 12. Qa3 Ra5 13. d4 Ng4 14. d5 Nd8 15. Bg5 Nf7 16. Bc1 e4 17. Nd4 Qe7 18. b4 Ra8 19. h3 Nge5 20. Nxa4 Bd7 {Kusnierz,J (2103)-Doroshenko,A (2259) ICCF 2015 0-1 (37)}) 9... Nc6 10. cxd6 cxd6 (10... Qxd6 11. a3 h6 12. Nd2 Rd8 13. Nc4 Qe6 14. Nb5 Qe7 15. Qa4 Be6 16. Bxc6 {Moreira,J-Bjazevic,P (2509) ICCF 2009 1/2-1/2 (30)}) 11. Be3 h6 12. Qb3+ Kh7 13. a4 Ra6 14. Nb5 Re8 15. Rbc1 Be6 16. Qa3 Bf8 17. b3 Qd7 { Williams,R (2333)-Malkov,A (2209) ICCF 2013 0-1 (46)}) (6. Be3 Nc6 7. Nf3 Nf6 8. O-O h6 9. Rb1 O-O 10. b4 (10. Qb3 Qe8 11. Nd2 f4 12. gxf4 Ng4 13. c5+ Kh7 14. f5 gxf5 15. cxd6 Qh5 16. h3 Nxe3 17. fxe3 cxd6 18. Kh2 e4 19. Kh1 Kh8 20. Rf2 Rg8 {Graham,S (2178)-López de Jerónimo,F (2089) ICCF 2009 1/2-1/2}) 10... a6 11. Qc1 Kh7 12. a4 a5 13. b5 Nb4 14. Nd5 Nbxd5 15. cxd5 b6 16. Qc6 Ra7 17. Rbc1 Ng4 {Visigalli,C (2112)-Rogers,B (2050) ICCF 2019 1/2-1/2 (56)}) (6. Rb1 Nf6 7. Bg5 h6 8. Bxf6 Qxf6 9. Nd5 Qd8 10. e3 c6 11. Nc3 O-O 12. Nge2 Be6 13. O-O Nd7 14. Qc2 g5 15. f4 Nf6 16. h3 exf4 17. exf4 Qb6+ {Esposito,L (1635) -Scuderi,D (2282) ICCF 2019 0-1 (46)}) 6... Nf6 (6... Ne7 7. Nge2 O-O (7... fxe4 8. dxe4 Bg4 9. Bg5 h6 10. Be3 Qd7 11. O-O c5 12. Nb5 Nc8 13. Qd2 Nc6 14. Nec3 a6 15. Na3 h5 16. Nd5 O-O 17. f4 exf4 18. Rxf4 Rxf4 19. gxf4 {Troger,D (2222)-Niese,P (2294) ICCF 2014 1-0 (73)}) 8. O-O c5 (8... Nd7 9. exf5 Nxf5 10. b4 Nf6 11. Bg5 h6 12. Bd2 a6 13. a4 c6 14. b5 axb5 15. axb5 Rxa1 16. Qxa1 d5 17. bxc6 bxc6 18. Qa4 {Giulian,P (2426)-Ludgate,A (2502) ICCF 2013 1/2-1/2}) 9. Bg5 Nbc6 10. Qd2 Be6 11. exf5 gxf5 12. Nd5 Qd7 13. Nxe7+ Nxe7 14. Bxe7 Qxe7 15. Nc3 f4 16. Be4 Kh8 17. f3 Rab8 18. g4 {Dearnley,A (2360)-Lagerborg,K (2424) ICCF 2018 1-0 (64)}) (6... c6 7. Nge2 Ne7 8. O-O O-O 9. exf5 Bxf5 10. d4 Nd7 11. Bg5 h6 12. Be3 Kh7 13. Qd2 Qa5 14. Rad1 exd4 15. Bxd4 Ne5 16. b3 Rad8 17. f4 c5 18. Bf2 {Hryniw,M (2298)-Blondel,F (2027) ICCF 2014 1-0 (34)}) 7. Nge2 ( 7. exf5 gxf5 8. Bg5 O-O 9. Nge2 c6 10. d4 Qe8 11. d5 Bd7 12. b4 Qg6 13. h4 Kh8 14. Qd2 Na6 15. O-O c5 16. b5 Nc7 17. Qc2 Qh5 18. Bh3 h6 {Malinowski,D (2236) -Jabot,D (2177) ICCF 2017 1/2-1/2 (27)}) (7. h4 Nc6 8. h5 Nxh5 9. exf5 Qf6 10. Nd5 Qf7 11. Nh3 Bf6 12. Ng5 Bxg5 13. Bxg5 Bxf5 14. g4 Bxg4 15. Qxg4 O-O 16. O-O-O Rac8 17. Rxh5 gxh5 18. Nf6+ Kh8 {Savoya,A-Herlant,C ICCF 2008 1-0}) 7... O-O (7... fxe4 8. dxe4 O-O 9. h3 (9. O-O Be6 (9... Nbd7 10. b3 (10. h3 Nc5 11. Be3 Be6 12. b4 Na6 13. Qb3 c6 14. Rad1 Qc7 15. Rd2 Rad8 16. Rfd1 Qf7 17. b5 Nc5 18. Bxc5 Ne8 19. bxc6 bxc6 20. f4 Bxc4 21. Qa4 Qc7 {Rickert,W (2160)-Wiesinger, J (2140) ICCF 2015 1-0 (28)}) 10... Nc5 11. f3 c6 12. Be3 Qe7 13. Qd2 Be6 14. Rad1 Rad8 15. Kh1 Rfe8 16. Bg5 Bf7 17. f4 Ne6 18. Bh4 exf4 19. Nxf4 Nc5 20. Qd4 Qe5 21. Qxe5 dxe5 22. Rxd8 Rxd8 23. Nfd5 cxd5 24. exd5 Rd6 25. b4 Ncd7 26. c5 Nxd5 27. Rxf7 Nxc3 28. Rxg7+ Kxg7 29. cxd6 Kf7 30. Bxb7 Ke6 31. Be7 Nb5 32. Kg2 Nxd6 33. Bxd6 Kxd6 34. Kf3 Nf6 35. a3 Ke6 36. Be4 g5 37. h3 h6 38. Bb7 Kd6 39. Ke3 g4 40. h4 Nh5 41. Bc8 Nxg3 42. Bxg4 Kd5 43. Bh3 Nh5 44. Bg2+ {1/2-1/2 (44) Mirkowski,P (2286)-Wiesinger,J (2120) ICCF 2014 English Opening: 1...e5-2 Nc3}) (9... Bg4 10. f3 Be6 11. b3 Nbd7 12. Be3 a5 13. Nb5 b6 14. Qd2 Rf7 15. f4 Nc5 16. Nec3 Ng4 17. Bxc5 dxc5 18. Qxd8+ Rxd8 19. f5 gxf5 20. exf5 Rxf5 21. Nxc7 { McElroy,W (1935)-Ostermann,M (2076) ICCF 2012 1/2-1/2 (25)}) (9... Na6 10. b3 c6 11. h3 Be6 12. Be3 Qd7 13. Kh2 b6 14. Qd2 Nc5 15. Rad1 Rad8 16. f4 Ne8 17. b4 Na6 18. b5 cxb5 19. cxb5 Nc5 20. f5 Bc4 21. g4 {Limbert,N (2282) -Etherington,J (2065) ICCF 2013 1-0 (29)}) 10. b3 (10. Bg5 Bxc4 11. b3 Be6 12. Nd5 Bxd5 13. Bxf6 Qxf6 14. Qxd5+ Kh8 15. Qxb7 Nd7 16. Qxc7 Nc5 17. f4 Rfc8 18. Qa5 Qd8 19. Qxd8+ Rxd8 20. Rad1 Rab8 21. h4 h5 {Moujan,P (1915)-Smiley,W (1873) ICCF 2019 1-0}) (10. Nd5 Nbd7 11. Nec3 c6 12. Ne3 Qc7 13. Qe2 Bf7 14. b3 Nc5 15. Bb2 Rad8 16. Rad1 a6 17. b4 Ne6 18. Qd3 b5 19. a4 a5 20. Ba3 axb4 21. Bxb4 bxa4 {Ostermann,M (1997)-Wiesinger,J (2052) ICCF 2012 0-1 (26)}) 10... Qd7 11. Qc2 (11. Bg5 h6 (11... Na6 12. Qd2 Rf7 13. f3 Raf8 14. Rad1 b6 15. Be3 Nb8 16. Kh1 Ne8 17. g4 Nc6 18. Nd5 Nd8 19. Ng1 Nf6 20. a4 Kh8 21. a5 bxa5 22. Qxa5 Nc6 {Armani,G (2342)-Jacobs,R (2377) ICCF 2017 1/2-1/2 (49)}) 12. Be3 c5 13. Nd5 Nc6 14. Qd3 Rf7 15. Rae1 Raf8 16. f4 Nd4 17. Nxf6+ Rxf6 18. Rf2 R6f7 19. Nc3 Qe7 20. Ref1 Qd7 21. Nd5 exf4 22. Nxf4 Kh7 {Pranitchi,T (2147)-Naeter,B (2308) ICCF 2019 1/2-1/2 (32)}) (11. Nd5 Na6 (11... c5 12. Bg5 Nc6 13. Qd2 Rf7 14. Rad1 Nd4 15. Nxd4 cxd4 16. Rc1 Re8 17. a4 Nxd5 18. cxd5 Bh3 19. Qe2 h5 20. f3 Ref8 21. Rc4 Kh7 22. Qd2 Bxg2 23. Kxg2 {Marin,I (2204)-Orlando,E (2022) ICCF 2018 1/2-1/2 (26)}) 12. Bg5 c6 13. Nxf6+ Bxf6 14. Bh6 Bg7 15. Bxg7 Kxg7 16. Qd2 Rad8 17. Rad1 Nc5 18. f4 Bg4 19. b4 Na4 20. Bf3 Bh3 21. Bg2 {Eastoe, L-Jonckheere,P (2378) ICCF 2011 1/2-1/2}) 11... Nc6 12. Nd5 Nd4 13. Nxd4 exd4 14. Nf4 Bf7 15. Bd2 Rae8 16. h4 Qe7 17. Nd5 Qd7 18. Nf4 {1/2-1/2 (18) Prencipe, G (2190)-Perini,G (2195) ICCF 2020}) 9... Be6 10. b3 Na6 (10... Nc6 11. Be3 Nd7 12. Nd5 a5 13. Qd2 Nc5 14. O-O Qd7 15. Kh2 Rf7 16. Rab1 Raf8 17. a3 a4 18. b4 { Wiander,M-Buhmann,T (2235) ICCF 2008 1/2-1/2}) 11. Be3 Nc5 12. Qd2 Qe7 13. Rd1 Rad8 14. O-O c6 15. Bg5 a5 16. f4 h6 17. Bh4 a4 18. b4 Na6 19. Nxa4 {Vanosmael, A (2085)-Pintor,M (2047) ICCF 2005 1/2-1/2 (39)}) 8. O-O c6 (8... f4 9. gxf4 Nh5 10. fxe5 Bxe5 11. f4 Bxc3 12. Nxc3 Ng7 13. Be3 c6 14. d4 Qe8 15. Qb3 Nd7 16. c5+ d5 17. Rae1 Kh8 18. exd5 Qf7 {Ackley,P (1982)-Holt,F (1714) ICCF 2016 1-0 (34)}) 9. exf5 (9. Kh1 Be6 10. b3 Na6 11. Rb1 Nh5 12. exf5 gxf5 13. f4 exf4 14. Bxf4 Nxf4 15. Nxf4 Bd7 16. d4 Qb6 17. Nce2 Rae8 18. b4 Nc7 19. a4 Qa6 20. Qb3 Kh8 {Hoffmann,A (2523)-Polzer,H (2458) ICCF 1999 1-0 (45)}) 9... gxf5 (9... Bxf5 10. d4 (10. h3 Qd7 (10... Na6 11. d4 Qc8 12. g4 Be6 13. d5 cxd5 14. cxd5 Bd7 15. Be3 h5 16. f3 b5 17. Qd3 b4 18. Ne4 Nxe4 19. Qxe4 Bb5 20. Rfe1 Be8 21. Rac1 Qd7 22. gxh5 {Jefferson,N-Owen,K ICCF 2006 1-0 (57)}) 11. Kh2 Na6 12. Bg5 Nc7 13. d4 h6 14. Be3 e4 15. d5 cxd5 16. cxd5 h5 17. Nf4 a6 18. a4 Qf7 19. a5 Rfe8 20. Ra4 Nb5 21. Rb4 Nxc3 {Yáñez García,J (2084)-Nordin,N (1988) ICCF 2018 1-0 (41)}) 10... Na6 (10... Nbd7 11. h3 Qc7 12. g4 Be6 13. d5 Bf7 14. Be3 Nb6 15. b3 cxd5 16. cxd5 Rac8 17. Rc1 Qe7 18. Qd2 {Flitsch,G (2299)-Leitenmüller,M ICCF 2012 1-0 (41)}) (10... Qd7 11. Bg5 Na6 12. Qd2 Nb4 13. d5 cxd5 14. a3 Nc6 15. Bxf6 Bxf6 16. Bxd5+ Kh8 17. Ne4 Bd8 18. c5 dxc5 19. Nxc5 Qe7 20. Rac1 Bb6 21. Nxb7 Nd4 22. Nxd4 {Andersen,J (2284)-Pichushkin,V ICCF 2010 1/2-1/2 (34)}) 11. h3 (11. Bg5 Nc7 (11... h6 12. Be3 Nb4 13. dxe5 dxe5 14. Bc5 Nc2 15. Bxf8 Qxf8 16. Rc1 Rd8 17. Nd5 cxd5 18. Rxc2 d4 19. Rd2 Qb4 20. Nxd4 exd4 21. Rxd4 Rxd4 22. Qxd4 b5 23. Rd1 {Kutlu,H (2105)-Truyens,A (2302) ICCF 2015 1/2-1/2 (25)}) 12. d5 Rb8 13. h3 h5 14. Kh2 Qd7 15. Qd2 cxd5 16. cxd5 b5 17. Bxf6 Rxf6 18. Ne4 Rf7 19. h4 Ne8 20. Rac1 b4 21. Rc6 Qe7 22. Ng1 Rf8 {Morihama,N (2254) -Green,P (2122) ICCF 2017 1-0 (33)}) 11... h5 12. Bg5 Qb6 (12... Nc7 13. Qd2 Ne6 14. Be3 c5 15. dxe5 dxe5 16. Rad1 Qb6 17. Kh2 Rad8 18. Nd5 Nxd5 19. cxd5 Nd4 20. Nc3 Qa6 21. Rfe1 {Gullotto,V (2256)-Hauser,D (2322) ICCF 2015 1-0 (68)} ) 13. Qd2 Nc7 14. Be3 Qa6 15. b3 Rad8 16. Rfd1 Kh7 17. Rac1 b6 18. dxe5 dxe5 19. Qxd8 Rxd8 20. Rxd8 Ne6 21. Rd2 {Rawlings,A (2409)-Jacewicz,G (2047) ICCF 2011 0-1 (29)}) 10. d4 Na6 (10... e4 11. Nf4 Na6 12. b3 d5 13. h3 Nc7 14. Be3 Ne6 15. Nxe6 Bxe6 16. c5 Bf7 17. b4 b5 18. a4 a6 19. axb5 axb5 20. Qd2 Qe7 21. Ne2 {Tombs,S-Nossein,F (1705) ICCF 2010 1-0 (67)}) (10... Qe7 11. Bg5 Nbd7 12. Qd2 Qe8 13. Rad1 Qg6 14. b3 h6 15. Bh4 a6 16. Rfe1 Nh5 17. dxe5 dxe5 18. Be7 Re8 19. Bd6 Ndf6 20. Na4 Be6 21. Bxe5 Bxc4 22. Nb6 {Williams,R (2333)-Picken,R (1823) ICCF 2013 1-0 (31)}) (10... Nbd7 11. b3 Re8 12. Qc2 Nf8 13. dxe5 dxe5 14. Ba3 Ng4 15. h3 Nf6 16. Rad1 Qc7 17. Rfe1 Qf7 18. Qd2 h5 19. f3 h4 20. g4 e4 21. g5 Nh5 22. fxe4 {Ackley,P (2044)-Bruce,R (1941) ICCF 2019 1/2-1/2 (36)}) 11. b3 Bd7 (11... e4 12. Be3 (12. Bg5 d5 13. cxd5 cxd5 14. Qd2 Nc7 15. Rac1 Ne6 16. Bh6 Bxh6 17. Qxh6 Qe8 18. Qe3 Bd7 19. Nf4 Nxf4 20. Qxf4 Rc8 21. Rc2 Bb5 22. Re1 Qh5 23. Rcc1 {Löschnauer,E-Vegjeleki,A (2249) ICCF 2010 1-0 (51)}) 12... Nc7 13. Qd2 d5 14. Nf4 dxc4 15. bxc4 Ng4 16. Rad1 Qd6 17. d5 Nxe3 18. Qxe3 Qa3 19. Rc1 Be5 20. Rfd1 Bd7 21. c5 Kh8 22. d6 Ne8 23. Nh5 {Chambers,D (2187) -Velde,M (2134) ICCF 2017 1/2-1/2 (51)}) (11... Ng4 12. dxe5 (12. h3 f4 13. f3 Nh6 14. dxe5 Qb6+ 15. Kh1 dxe5 16. gxf4 exf4 17. Rb1 Nf5 18. Bxf4 Nb4 19. a3 Rd8 20. Na4 Rxd1 21. Nxb6 Rxb1 22. Rxb1 axb6 23. axb4 {Brusiani,A (2021) -Hauser,D (2251) ICCF 2012 1/2-1/2 (46)}) 12... dxe5 13. Ba3 Re8 14. h3 Nh6 15. Qc1 Nf7 16. Rd1 Qf6 17. Rb1 Nc7 18. Bb2 Qg6 19. f4 e4 20. Qe3 b6 21. Rd2 c5 22. Nd1 {Pranitchi,T (2202)-Necula,I (2365) ICCF 2014 1/2-1/2 (43)}) 12. Bg5 (12. Ba3 exd4 13. Nxd4 Qa5 14. Bb2 Rae8 15. Nde2 (15. Re1 f4 16. Rxe8 Rxe8 17. gxf4 Qh5 18. f5 Qh6 19. h3 Nc5 20. Bc1 Qh4 21. Be3 Nce4 22. Nxe4 Nxe4 23. Rc1 h5 24. Ne6 Bxe6 25. fxe6 Rxe6 26. Qd3 a5 27. Rf1 Qe7 28. a3 h4 29. Kh2 d5 30. cxd5 Qd6+ 31. Kg1 Qxd5 32. Qxd5 cxd5 33. Rd1 d4 34. Bd2 Rg6 35. Bxa5 Nc3 36. Bxc3 dxc3 37. Rd8+ Kf7 38. Rd7+ Ke6 39. Rxb7 Rg5 40. Kf1 Bf8 41. Be4 Bxa3 42. Rb6+ Bd6 43. Ke2 Re5 44. Kf3 Kd7 45. Ra6 Rc5 46. Bc2 Rd5 47. Ra4 Be7 48. Kg4 Rd2 49. Bf5+ Ke8 50. Rc4 Rxf2 51. Rxc3 Rg2+ 52. Kf4 Bd6+ 53. Ke4 Rg3 54. Rd3 Rxd3 { 1/2-1/2 (54) Teimer,T (2448)-Arnold,H (2357) ICCF 2006 English Opening: 1... e5-2 Nc3}) 15... d5 16. cxd5 Nxd5 17. Na4 Bxb2 18. Nxb2 Nac7 19. Nd3 Nc3 20. Nxc3 Qxc3 21. Rc1 Qf6 22. Nf4 Bc8 23. Rc4 Rd8 {Eastoe,L (2227)-Rogers,M (2030) ICCF 2014 1/2-1/2 (59)}) (12. Re1 f4 (12... e4 13. Nf4 Re8 14. Ba3 d5 15. Qd2 Nc7 16. Bd6 Ne6 17. Nxe6 Bxe6 18. c5 Bf7 19. Rab1 Nd7 20. Ne2 Qf6 21. a4 Nf8 22. Qb4 b6 23. cxb6 axb6 24. Rec1 {Grabner,H (2214)-Epinoux,J (2102) ICCF 2011 1/2-1/2 (36)}) 13. gxf4 Ng4 14. Ne4 exd4 15. Nxd4 Nc5 16. f5 Qh4 17. Nf3 Qd8 18. Nxc5 dxc5 19. Bg5 Qc8 20. Rc1 Bxf5 21. Be7 Bb2 22. Qd2 Bxc1 23. Qxc1 Bg6 { Anilkumar,N (2486)-Menéndez,D (2458) ICCF 2001 1-0 (50)}) 12... Qe8 13. Qd2 Rd8 14. Rfe1 {Epinoux,J (2040)-Reich,Y (2319) ICCF 2005 1/2-1/2 (48)}) (2... Nf6 3. g3 Bb4 4. Bg2 (4. e3 Bxc3 5. bxc3 O-O 6. Bg2 d6 7. Ne2 Nc6 8. O-O e4 (8... Bd7 9. d3 Re8 10. d4 Rc8 {0-1 (10) Neu,A-Randolph,D (1642) ICCF 2011}) 9. Nd4 Ne5 10. f4 Nd3 11. Qc2 Qe8 12. Ba3 b6 13. Nb5 Qe7 14. Nd4 c5 15. Ne2 Be6 { Colebrook,M-Tassone,R (2163) ICCF 2016 0-1}) 4... Bxc3 5. bxc3 O-O (5... c5 6. d4 cxd4 7. cxd4 e4 8. d5 d6 9. Bg5 Bf5 10. e3 Nbd7 11. Ne2 O-O 12. Nc3 Ne5 13. O-O h6 14. Bxf6 Qxf6 15. Nxe4 Bxe4 16. Bxe4 Nxc4 17. Rb1 {Tanner,A-Gosling,D ICCF 2012 1-0 (37)}) (5... d6 6. d3 (6. Rb1 O-O 7. d3 Nc6 8. Nh3 Rb8 9. Bxc6 Bxh3 10. Rxb7 Rxb7 11. Bxb7 Qd7 12. Bf3 {1-0 (12) Pensimus,P (1776)-Kocian,S (1683) ICCF 2017}) 6... h6 7. f4 Nbd7 8. Nf3 e4 9. Nd2 exd3 10. exd3 Qe7+ 11. Qe2 Nc5 12. Qxe7+ Kxe7 13. d4 Nd3+ 14. Ke2 Bf5 15. Nf1 Kd7 16. Ne3 Rae8 17. Kd2 {Findiur,I (1975)-Har-Even,A (2430) ICCF 2012 0-1 (39)}) (5... e4 6. Qc2 (6. f3 Qe7 7. fxe4 Nxe4 8. d3 Nf6 9. Nf3 Nc6 10. Bg5 h6 11. Bxf6 Qxf6 12. Qd2 O-O 13. O-O Qe7 14. Nd4 Nxd4 15. cxd4 d6 16. Rf4 c6 17. Rb1 Qc7 {Doorn,J (2209)-Etmans, M (1992) ICCF 2006 1-0 (49)}) 6... d5 7. cxd5 Qxd5 8. Nh3 O-O 9. O-O Bf5 10. Nf4 Qd7 11. h3 h6 12. Rb1 b6 13. d4 Nc6 14. g4 Bh7 15. e3 Rfe8 16. Bb2 b5 17. c4 {Linden,W (1931)-Gosling,D ICCF 2011 1-0 (39)}) (5... Nc6 6. Nh3 O-O 7. d3 h6 8. O-O d5 9. cxd5 Nxd5 10. Bb2 Re8 11. e4 Nf6 12. f4 b6 13. Nf2 exf4 14. gxf4 Rb8 15. Kh1 Ne7 16. c4 Ng6 17. f5 {Hansen,J (2133)-Beveridge,C (2173) ICCF 2017 0-1}) 6. d3 (6. d4 exd4 7. cxd4 d5 8. cxd5 Nxd5 9. Qb3 Nf6 10. Bxb7 Bxb7 11. Qxb7 Qd5 12. Qxd5 Nxd5 13. Nf3 Na6 14. O-O Rfe8 15. e3 Rab8 16. Ba3 f6 17. Rab1 Rxb1 {Smith,J-Shaffer,A ICCF 2014 1-0 (34)}) (6. Rb1 Re8 7. Bxb7 Bxb7 8. Rxb7 e4 9. Qa4 Qc8 10. Rxa7 Rxa7 11. Qxa7 Nc6 12. Qa4 Ne5 13. Kf1 Qb7 14. Kg2 h6 15. a3 d6 16. Qd1 Nxc4 17. f3 Ne5 {Blanco,H (2378)-Stanescu,T (2401) ICCF 2017 0-1 (34)}) 6... Re8 (6... h6 7. e4 (7. Nf3 Re8 8. O-O d6 9. Rb1 c6 10. Qc2 b6 11. h3 Bb7 12. Rd1 Nbd7 13. Nh4 g5 14. Nf5 Qc7 15. Nxh6+ Kh7 16. Nxf7 Kg6 17. Nxg5 Ba6 18. e4 Kg7 {Svítil,R (1798)-Dojcinovic,M (1684) ICCF 2015 1-0 (48)}) 7... c6 8. Nf3 Re8 9. O-O d5 10. exd5 cxd5 11. cxd5 Qxd5 12. c4 Qa5 13. Bb2 Nc6 14. Re1 Bf5 15. Qb3 Rad8 16. Bc3 Qc5 17. Qb5 Qxb5 18. cxb5 { Adam,C (2165)-Gross,M (2206) ICCF 2009 1/2-1/2}) 7. e4 c6 (7... d6 8. Nh3 (8. Nf3 c6 9. O-O h6 10. Nh4 d5 11. cxd5 cxd5 12. exd5 Nxd5 13. Qb3 Nb6 14. Be3 Nc6 15. Be4 Be6 16. Qb5 Qd7 17. Bxb6 axb6 18. a4 Ra6 19. Rfb1 Qc7 {Gierth,K (2303) -Rilberg,S (2310) ICCF 2003 1/2-1/2 (30)}) 8... Nc6 9. O-O (9. f3 a6 10. a4 Na5 11. O-O b6 12. Ra2 h6 13. f4 Bg4 14. Qc2 Bd7 15. f5 Bc6 16. Nf2 Nd7 17. Ng4 f6 18. Be3 Nc5 19. Rb1 Kh8 20. Ra3 Qd7 {Hansen,J (2166)-Camps,J (1969) ICCF 2017 1-0 (33)}) 9... h6 10. f4 Bg4 11. Qc2 b6 12. Nf2 Bd7 13. f5 a6 14. g4 Nh7 15. Nd1 b5 16. Ne3 Na5 17. cxb5 axb5 18. Rb1 Nb7 19. c4 {Rozhnev,I (2205)-Edwards, K (2198) ICCF 2016 0-1 (46)}) (7... h6 8. Ne2 c6 9. O-O d5 10. cxd5 cxd5 11. exd5 Nxd5 12. Qb3 Nb6 13. c4 Nc6 14. Re1 Bf5 15. c5 Be6 16. Qb2 Nd5 17. Bd2 Rb8 18. Rac1 Qd7 19. d4 {Ribelles Sala,M (1883)-Hulecová,S (2256) ICCF 2008 0-1 (53)}) 8. Ne2 (8. g4 d6 (8... d5 9. g5 Nfd7 10. cxd5 cxd5 11. exd5 Nc5 12. Be3 Nba6 13. Qb1 (13. Be4 Nxe4 14. dxe4 Bd7 15. Ne2 Rc8 16. f3 b5 17. Qd2 Nc5 18. O-O Nb7 19. Bxa7 Nd6 20. Be3 Rf8 21. Kh1 Nc4 22. Qd3 Nb2 23. Qc2 Nc4 24. Bd2 Ra8 {Kostanjsek,Z (2373)-Hurn,R (1971) ICCF 2020 1/2-1/2 (79)}) 13... f5 14. gxf6 Qxf6 15. Ne2 Bf5 16. Be4 Nxe4 17. dxe4 Bg6 18. Ng3 Rac8 19. Bxa7 Rxc3 20. Qb2 {Hrzina,B (2303)-Pacic,A (2188) ICCF 2019 1/2-1/2 (28)}) 9. g5 Nfd7 10. h4 Nc5 11. Be3 Nba6 12. Ne2 d5 13. cxd5 cxd5 14. exd5 Bf5 15. Nc1 Rc8 16. h5 e4 17. d4 Nd3+ 18. Nxd3 exd3 19. g6 fxg6 {Doorn,J (2230)-Eriksson,R (2272) ICCF 2005 1/2-1/2 (33)}) 8... d5 9. exd5 cxd5 10. cxd5 Nxd5 11. Rb1 Nc6 12. Rb5 Nf6 13. O-O a6 14. Rb2 {Krakovský,P (2166)-Kreutz,J (2123) ICCF 2020 1/2-1/2 (29)}) (2... Nc6 3. g3 (3. Nf3 Nf6 4. Qc2 Bc5 5. e3 d6 6. a3 a5 7. h3 O-O 8. b3 h6 9. Be2 Re8 10. Bb2 e4 11. Nh2 Ne5 12. O-O Bf5 13. f3 d5 14. cxd5 exf3 {Catt,P (2416)-Graham,O (1943) ICCF 2014 1-0 (35)}) 3... f5 (3... g6 4. Bg2 Bg7 5. e4 ( 5. Nf3 d6 6. O-O f5 7. d3 Nf6 8. e4 O-O 9. Qb3 (9. Rb1 a5 (9... fxe4 10. dxe4 Be6 11. b3 Qd7 12. Be3 Ne7 13. Qd2 a6 14. Ng5 Ng4 15. Nxe6 Qxe6 16. Bh3 Rf3 17. Bg5 h5 18. Bg2 Rff8 19. Nd5 Nxd5 20. cxd5 Qf7 21. f4 {Tanner,A (1606)-Dudeney, K (1691) ICCF 2015 0-1 (29)}) 10. a3 f4 11. Nd5 Nh5 12. b4 axb4 13. axb4 Bg4 14. Bb2 Nd4 15. Bxd4 exd4 16. Qb3 Kh8 17. b5 c6 18. bxc6 bxc6 19. Nb4 Qc7 20. Qc2 Ra5 {Hirsso,J (1857)-Bitmanis,V (1997) ICCF 2010 1/2-1/2 (51)}) (9. Be3 f4 10. gxf4 exf4 11. Bxf4 Nxe4 12. Nd5 Nc5 13. Bg5 Qd7 14. Rb1 Qf7 15. b4 Ne6 16. Be3 Ncd4 17. Nxd4 Nxd4 18. Nf4 c6 19. b5 Bd7 {Tombs,S (1846)-Sintsov,S (1851) ICCF 2011 1-0 (36)}) 9... fxe4 10. Nxe4 Nxe4 11. dxe4 Kh8 12. Be3 Bg4 13. Nd2 Qd7 14. f3 Be6 15. f4 exf4 16. gxf4 Rae8 {Dantas,A (1645)-Karpanov,V (2192) ICCF 2011 0-1 (35)}) (5. Rb1 a5 6. a3 f5 7. e3 Nf6 8. Nge2 d6 9. O-O O-O 10. b3 {1-0 (10) Zajsek,F (2362)-Ntirlis,N (2307) ICCF 2017}) 5... Nge7 6. Nge2 O-O 7. O-O (7. d3 Nd4 8. Nxd4 exd4 9. Ne2 a5 10. O-O d6 11. Rb1 Bd7 12. b3 c5 13. Bg5 Rb8 14. a4 b6 15. Qc2 Re8 16. Rbe1 Qc7 17. Qd1 Qd8 18. Bf4 Bc8 {Larsen,A (1995) -Merkuriev,V ICCF 2017 1/2-1/2 (41)}) 7... d6 8. Rb1 Nd4 9. b4 Nec6 10. b5 Nb8 11. d3 Nd7 12. Bb2 Nxe2+ 13. Nxe2 a6 14. a4 axb5 15. axb5 {Tanner,A (1698) -Cooper,R (2106) ICCF 2012 0-1}) 4. Bg2 Nf6 5. e3 (5. d3 Be7 6. Nf3 O-O 7. O-O d6 (7... Rb8 8. Nd5 d6 9. h3 Kh8 10. a3 Be6 11. Nxe7 Qxe7 12. b3 f4 13. gxf4 Nh5 14. fxe5 dxe5 15. e3 Rbd8 16. Ra2 Bf5 17. d4 e4 18. Nh2 Nf6 19. f3 { Flatz,H (2274)-Szymanski,R ICCF 2007 1/2-1/2 (29)}) 8. Nd5 (8. Rb1 a5 9. a3 Qe8 10. b4 axb4 11. axb4 Qh5 12. b5 (12. Nd5 Bd8 13. b5 Nxd5 14. cxd5 Nb8 15. e4 fxe4 16. dxe4 Bg4 17. Rb3 Nd7 18. Ba3 b6 19. Qd3 Nc5 20. Bxc5 bxc5 21. Nd2 Be2 22. Qb1 Bg5 23. f4 Bxf1 {Nunnally,R (1714)-Pellen,M (1909) ICCF 2008 0-1 (30)}) 12... Nd8 13. Nd5 Nxd5 14. cxd5 Bd7 15. Qb3 Nf7 16. Bd2 b6 17. Qc4 Bd8 18. Ra1 Rc8 {1/2-1/2 (18) Henderson,G (2306)-Doppelhammer,H (2300) ICCF 2017}) (8. a3 e4 9. dxe4 Nxe4 10. Nxe4 fxe4 11. Nd4 Nxd4 12. Qxd4 Kh8 13. Bxe4 Bh3 14. Rd1 Qc8 15. Qd5 Rb8 16. Be3 Be6 17. Qd3 {1-0 (17) Shishkov,V (2075)-Kotov,Y ICCF 2014 English Opening: 1...e5-2 Nc3}) 8... Qd7 (8... Nxd5 9. cxd5 Nb8 10. Bd2 c5 11. b4 Bf6 12. bxc5 e4 13. Ne1 dxc5 14. dxe4 fxe4 15. Bxe4 Re8 16. Bf3 Bxa1 17. Qxa1 Bf5 18. Ng2 Nd7 19. Ne3 Be4 20. Bxe4 {Giobbi,C (2208)-Fagerbekk,E (2178) ICCF 2011 0-1 (25)}) 9. Ng5 Bd8 10. f4 h6 11. Nf3 Qf7 12. fxe5 Nxd5 13. cxd5 Nxe5 14. Nxe5 dxe5 15. Be3 Be7 16. d4 Bd6 {Ludgate,A (2527)-Gather,J (2473) ICCF 1999 1/2-1/2 (25)}) (5. Nf3 Be7 6. O-O d6 7. Ng5 h6 8. Nf7 Kxf7 9. Nd5 Nxd5 10. Bxd5+ Be6 11. d3 Qd7 12. e4 Bxd5 13. cxd5 Nd4 14. Be3 Rhf8 15. Bxd4 exd4 16. e5 dxe5 {Refalo,J (1751)-Lewis,J ICCF 2010 0-1 (49)}) (5. a3 g6 6. d3 Bg7 7. e3 O-O 8. Nge2 d6 9. O-O Be6 10. Qc2 Qd7 11. Nd5 Ne8 12. a4 Nd8 13. Ndc3 c6 14. a5 Rb8 15. Rb1 d5 16. b3 {Murden,C (2445)-Demian,V (2362) ICCF 2013 1/ 2-1/2 (56)}) 5... Be7 6. Nge2 d6 7. O-O O-O 8. d4 (8. b3 Nb4 (8... Qe8 9. Bb2 Nd8 10. Nd5 Nxd5 11. Bxd5+ Be6 12. Bg2 Bf6 13. d4 Bd7 14. Rc1 Bc6 15. d5 Bd7 16. Qd2 b6 {Vecek,M (2189)-Daatselaar,J (2145) ICCF 2015 1/2-1/2 (35)}) 9. d4 c6 10. Ba3 a5 11. Qd2 Qe8 12. Bb2 Qh5 13. a3 Na6 14. Rfe1 e4 15. Na4 Bd8 16. d5 b5 17. Bxf6 Rxf6 18. Nb2 Rh6 19. h3 Qe8 {Morley,P (2136)-Hynes,W ICCF 2006 0-1 (60)}) 8... Qe8 9. Nd5 Bd8 10. Nec3 (10. b3 a5 11. Bb2 a4 12. Ndc3 axb3 13. axb3 Rxa1 14. Qxa1 e4 15. Qa8 Qd7 16. Nf4 g5 17. Nfd5 Nxd5 18. Nxd5 Ne7 19. Nc3 Nc6 20. Nb5 Bf6 21. Bc3 Bg7 {Márquez Abreu,C (2394)-Lauer,R (2042) ICCF 2012 1/ 2-1/2 (39)}) 10... Qg6 11. b3 Re8 12. dxe5 Nxe5 13. Nf4 Qh6 14. Bb2 {De Blois Figueredo,A (1985)-Puche Femenies,J (1881) ICCF 2008 1-0 (45)}) (2... c6 3. d4 (3. Nf3 d6 (3... Qf6 4. d4 b6 (4... d6 5. Bg5 Qf5 6. dxe5 f6 7. exf6 gxf6 8. e4 Qa5 9. Bf4 Be6 10. Nd4 Bd7 11. Nb3 b5 12. Nxa5 Be6 13. cxb5 c5 14. Bxd6 Bxd6 15. Qxd6 Bd7 16. Bc4 {Bahnsen,E-Yarar,C ICCF 2015 1/2-1/2}) 5. dxe5 Qf5 6. e4 Qg4 7. Be2 {1-0 (7) Siburian,C (2311)-Cronjé,H (2199) ICCF 2020}) (3... f6 4. d4 (4. e4 Nh6 5. d4 d6 6. Bxh6 gxh6 7. Qd2 Be6 8. Be2 Nd7 9. O-O-O Nb6 10. d5 cxd5 11. cxd5 Bd7 12. Kb1 Bg7 13. Nh4 Qc7 14. Nb5 Bxb5 15. Bxb5+ Nd7 {Bouillod, Y-Brown,G ICCF 2014 1-0 (37)}) 4... Bb4 5. dxe5 Qb6 6. Bf4 Qc5 7. e3 g5 8. Bg3 h6 9. Qc2 Ba5 10. Qg6+ Kf8 11. exf6 Qd6 12. Bxd6+ {1-0 (12) Kratochvíl,J (2090) -Heineccius,A (1625) ICCF 2015}) (3... Qa5 4. d4 e4 5. Ng5 d5 6. cxd5 cxd5 7. Qb3 Nf6 8. Bd2 Qd8 9. e3 Nc6 10. f3 h6 11. Nh3 Bxh3 12. gxh3 Bb4 13. Nxe4 dxe4 14. Bxb4 Nd5 15. Bd2 {Berchtold,C (2265)-Eilmes,D (2258) ICCF 2005 0-1 (51)}) ( 3... Bc5 4. Nxe5 Nf6 5. g3 O-O 6. Bg2 d6 7. Nf3 Bf5 8. O-O Re8 9. d4 Bb4 10. Bg5 Qa5 11. Bxf6 gxf6 12. e4 Be6 13. d5 cxd5 14. Nxd5 Nc6 15. a3 {Fraser, W-Humanes Cañas,M ICCF 2013 1-0 (31)}) (3... Bd6 4. d4 Qe7 (4... exd4 5. Qxd4 Qe7 6. Qxg7 Qf6 7. Bh6 Qxh6 8. Qxh8 Qg6 9. Nh4 Qg4 10. Qxh7 f6 11. Nf5 Be5 12. Ne4 Bxb2 13. Rd1 d5 14. Qc7 Be5 15. Nfd6+ {1-0 (15) Hammerschmidt,V (1896) -Borisenko,D ICCF 2012}) 5. dxe5 Bb4 6. Bd2 d6 7. a3 Bc5 8. b4 Bb6 9. exd6 Qxd6 10. c5 Bxc5 11. bxc5 Qxc5 12. e4 Nf6 13. Be2 Ng4 14. O-O O-O 15. h3 {Alejos,P (1976)-Bilbao,J ICCF 2013 1-0 (34)}) (3... Nf6 4. Nxe5 Qe7 (4... Bd6 5. d4 c5 6. e3 cxd4 7. exd4 Bb4 8. Bd3 d5 9. Qa4+ Nbd7 10. Qxb4 dxc4 11. Bxc4 Nxe5 12. dxe5 Ng4 13. Bb5+ Bd7 14. Qxg4 O-O 15. Qxd7 Qa5 16. O-O {Jimenez Rubalcava,C (2157)-Rojas,E ICCF 2020 1-0}) 5. d4 Qe6 6. e4 d6 7. Nf3 d5 8. cxd5 cxd5 9. e5 Ne4 10. Bb5+ Bd7 11. Bxd7+ Nxd7 12. O-O Be7 13. Nb5 Qc6 14. a4 O-O 15. Qd3 { Powell,A (1571)-Fremmegaard,J ICCF 2015 1-0 (46)}) 4. d4 (4. g3 Be6 5. Qb3 Qe7 6. Bg2 b6 7. e4 h6 8. O-O Nd7 9. d3 a6 10. Be3 c5 11. Nd5 Bxd5 12. cxd5 Qd8 13. Bh3 b5 14. Nh4 Qf6 15. f4 Qd8 {Wood,S (1638)-Jacobs,G (1443) ICCF 2017 1-0 (34) }) 4... exd4 (4... Be6 5. e4 b6 6. dxe5 h6 7. exd6 Bxd6 8. Qd4 f6 9. Be3 c5 10. Qd3 Nd7 11. Qxd6 Bg4 12. Qg3 h5 13. h3 Ne5 14. Nxe5 Ne7 15. hxg4 fxe5 16. Qxe5 {Bozic,D (1578)-Heineccius,A (1392) ICCF 2017 1-0}) (4... Bf5 5. dxe5 c5 6. Bf4 f6 7. exd6 Nd7 8. Qd5 Qb6 9. Qxf5 Nh6 10. Qe6+ Kd8 11. Nd5 Qb4+ 12. Nxb4 g5 13. Nd5 Rc8 14. Ne5 fxe5 15. Bxg5+ {1-0 (15) Vötter,H (2390)-Heineccius,A (1523) ICCF 2016}) (4... Nf6 5. dxe5 dxe5 6. Qxd8+ Kxd8 7. Nxe5 Be6 8. Bg5 Nbd7 9. Rd1 Kc7 10. Bf4 Nxe5 11. Bxe5+ Kb6 12. Rd4 Nd7 13. Bf4 Rd8 14. a3 a6 15. e4 Bc5 16. Rd1 {Pye,J (1554)-Smith,M (1571) ICCF 2013 0-1 (38)}) 5. Qxd4 (5. Nxd4 Nf6 6. g3 c5 7. Nf3 Be7 8. Bg2 Nc6 9. O-O O-O 10. Bf4 h6 11. Qd2 g5 12. Be3 Ng4 13. Rad1 Re8 14. Nd5 Bf8 15. Qc2 Nxe3 16. Nxe3 Be6 {Röhrig,U (2183)-Shubin,V ICCF 2007 0-1 (27)}) 5... h6 6. b3 (6. Bf4 c5 7. Qe4+ Be7 8. Rd1 Nf6 9. Qc2 O-O 10. g3 Qa5 11. Nd2 Re8 12. Bg2 Na6 13. O-O Nb4 14. Qb1 Bf5 15. Qxf5 Nh7 16. Bxb7 Rab8 17. Be4 Nf8 {Newcombe,R-Reyes,S ICCF 2017 1-0}) 6... c5 7. Qe4+ Be7 8. Bb2 Qa5 9. e3 Nf6 10. Qc2 O-O 11. h3 Re8 12. Bd3 d5 13. O-O d4 14. exd4 cxd4 { Charatzoglou,G-Reyes,S ICCF 2017 1-0 (42)}) (3. d3 Bb4 4. Bd2 Bxc3 5. Bxc3 Qe7 6. e4 d6 7. Be2 Nf6 8. h3 O-O 9. Nf3 h6 10. O-O c5 11. a3 b6 12. Kh2 Nc6 13. Ng1 Nd4 14. Bxd4 cxd4 {Jakobi,W (1582)-Pettigrew,S (1454) ICCF 2019 1-0 (40)}) (3. g3 d5 4. cxd5 cxd5 5. d4 Nc6 6. dxe5 d4 7. Ne4 Qa5+ 8. Bd2 Qxe5 9. Bg2 Be6 10. Ng5 Bd5 11. N1f3 Qc7 12. O-O h6 13. Nh3 Qb6 14. Nf4 Be4 {Linden,W (1895) -Yüzak,B (1901) ICCF 2014 1-0}) 3... exd4 (3... f6 4. e3 g6 5. Nf3 exd4 6. exd4 Bb4 7. Bd2 Bxc3 8. Bxc3 Qe7+ 9. Qe2 Qxe2+ 10. Bxe2 Ne7 11. O-O O-O 12. Rfe1 Na6 13. Rad1 d5 14. c5 h5 15. Bxa6 {Vermeulen,E (1643)-Pedersen,H ICCF 2009 1-0 (40)}) 4. Qxd4 Be7 (4... Na6 5. Bf4 Nf6 6. Bd6 Nb4 7. Qe5+ Be7 8. Bxb4 Qb6 9. Qxe7# {1-0 (9) Piera i Arbat,J (1791)-Hernáez Altuna,A ICCF 2011}) (4... Nf6 5. e4 d6 6. Bf4 Be7 7. O-O-O O-O 8. Bxd6 Bxd6 9. Qxd6 Qxd6 10. Rxd6 Be6 11. f4 Nbd7 12. f5 Bxf5 13. exf5 Nb6 14. Nf3 h6 15. c5 Nbd5 16. Nxd5 {Garcia Varela, J-Neil,C (1425) ICCF 2016 1-0 (25)}) 5. Qxg7 Bf6 6. Qg3 d6 (6... Qe7 7. Bd2 d5 8. cxd5 Be5 9. Qe3 Bd7 10. Nf3 Bf6 11. d6 Qxe3 12. Bxe3 Na6 13. O-O-O Nb4 14. g3 Ne7 15. dxe7 Bxe7 16. Bg2 Be6 17. Nd4 Nxa2+ 18. Nxa2 {Dixon,R (1958) -Gosling,D (1429) ICCF 2017 1-0}) 7. e4 Be5 8. Qd3 Nd7 9. Nf3 Nc5 10. Qc2 Bf6 11. Bf4 Ne7 12. O-O-O Qa5 13. Bxd6 Bg4 14. Be2 {Knee,J (1784)-Forrester,C ICCF 2014 1-0 (32)}) (2... Bc5 3. e3 (3. Nf3 d6 (3... Qf6 4. Ne4 Qe6 5. Nxc5 Qxc4 6. d4 Nc6 7. e3 Qd5 8. Qb3 Qxb3 9. axb3 d6 10. Na4 Be6 11. Bc4 Nb4 12. O-O d5 13. Bb5+ c6 14. Be2 e4 15. Ne1 {Roncea,I (1754)-Graça,J (1611) ICCF 2011 1-0 (52)}) (3... Nf6 4. Nxe5 O-O 5. d4 Bb4 6. Nd3 d5 7. Nxb4 Bf5 8. Nbxd5 Nc6 9. Bg5 { 1-0 (9) Kusnierz,J (1955)-Condó,A ICCF 2020}) 4. g3 (4. d4 exd4 5. Nxd4 Bg4 6. g3 Nf6 7. h3 Be6 8. e3 Qd7 9. Nxe6 fxe6 10. Bg2 c6 11. e4 e5 12. Be3 Bxe3 13. fxe3 Na6 14. a3 O-O 15. O-O Nc7 {Nanni,M-Arteaga Hernández,L ICCF 2013 0-1}) ( 4. e3 Bg4 5. d4 exd4 6. exd4 Bb6 7. Be3 c6 8. h3 Bh5 9. Qb3 Qc8 10. g4 Bg6 11. Nh4 Nf6 12. g5 Nh5 13. Be2 Ba5 14. Bg4 Bxc3+ 15. bxc3 Qc7 {Horchler,P (2207) -Nacer,A ICCF 2009 1-0 (27)}) 4... f5 (4... Nf6 5. d3 h6 6. Bg2 Be6 7. O-O O-O 8. Nxe5 c6 9. Nf3 Nbd7 10. Bf4 a6 11. Na4 d5 12. Nxc5 Nxc5 13. b4 Ncd7 14. Bd6 Re8 15. c5 a5 16. a3 {Deacon,G (1718)-Kruse,P (1596) ICCF 2020 1-0 (33)}) 5. d4 exd4 6. Nxd4 Nf6 7. Bg2 c6 8. O-O O-O 9. e3 a6 10. Qc2 g6 11. b3 d5 12. cxd5 Bd7 13. dxc6 bxc6 14. Bb2 Bxd4 {Deacon,G (1817)-Laguerta,C (1648) ICCF 2017 1-0 (49)}) 3... Nf6 (3... Nc6 4. a3 (4. Nge2 Nf6 5. d4 exd4 6. exd4 Bb4 7. a3 Bd6 8. g3 O-O 9. Bg2 Re8 10. O-O Na5 11. c5 Qe7 12. cxd6 Qxd6 13. Re1 a6 14. Bf4 Qe7 15. Bxc7 Nc6 {Nguyen,M (1904)-Carlier,P (1425) ICCF 2020 0-1 (34)}) (4. g3 Nb4 5. d3 Nf6 6. Bg2 d6 7. Nf3 Bg4 8. O-O Bxf3 9. Bxf3 c6 10. a3 Na6 11. d4 exd4 12. exd4 Bb6 13. Bg5 O-O 14. Ne4 Nc7 15. Nxf6+ gxf6 {Petrie,A (1535) -Armstrong,J (1588) ICCF 2014 1-0}) 4... Nf6 5. b4 (5. d3 d6 6. Nge2 O-O 7. d4 Bb6 8. b4 exd4 9. Nxd4 a5 10. Nc2 Bf5 11. Bd3 Qd7 12. Bb2 axb4 13. axb4 Bg4 14. Be2 Rfe8 15. O-O h6 16. Re1 Ba7 {Fanelli,F (1569)-Miedema,H ICCF 2015 1-0 (36)} ) (5. Nf3 O-O 6. d4 exd4 7. exd4 Be7 8. d5 Nb8 9. Bd3 h6 10. O-O d6 11. Re1 b6 12. Nd4 Bb7 13. Bxh6 g6 14. Qc2 Kh7 15. Bxf8 {1-0 (15) Lindberg,W (2208) -Holland,E (2190) ICCF 2019}) 5... Be7 6. g3 d5 7. cxd5 Nxd5 8. Nge2 Bg4 9. h3 Nxc3 10. dxc3 Qxd1+ 11. Kxd1 Bf3 12. Rg1 O-O-O+ 13. Bd2 Rd6 14. Kc2 Be4+ 15. Kc1 {Safari Nejad,R (1568)-Arnold,B ICCF 2017 0-1 (30)}) (3... d6 4. d4 Bb4 5. Qa4+ Nc6 6. d5 Bxc3+ 7. bxc3 Nge7 8. Nf3 O-O 9. dxc6 Nxc6 10. Bd3 Qf6 11. Rb1 a6 12. O-O g6 13. e4 Bd7 14. h3 Rad8 15. Bg5 {Vlcek,M-Klein,J ICCF 2009 1-0}) ( 3... Qf6 4. Nf3 Nc6 5. Nd5 Qd6 6. e4 a6 7. a3 b5 8. b4 Ba7 9. c5 Qe6 10. Nxc7+ Kd8 11. Nxe6+ fxe6 12. Ng5 h6 13. Nf7+ Kc7 14. Nxh8 {1-0 (14) Leite,H-Whittle, P (1274) ICCF 2018}) 4. d4 (4. d3 O-O (4... a6 5. Nf3 O-O 6. Be2 d6 7. h3 Be6 8. O-O Nc6 9. a3 h6 10. Qc2 Qd7 (10... Bf5 11. e4 Be6 12. Be3 Bxe3 13. fxe3 Qd7 14. Kh2 Ne7 15. Rf2 c6 16. Ng1 c5 17. Na4 Qc7 18. Nc3 Nc6 19. Nf3 Ne7 20. Rg1 Kh8 21. Ne1 Nd7 22. g4 {Jakobi,W (1499)-Kreveld,F (1105) ICCF 2020 1-0 (32)}) 11. Kh2 Bf5 12. Ng1 Na7 13. b4 Bb6 14. Bb2 c6 15. Rad1 Bh7 16. Ne4 {Jakobi,W (1499)-Kreveld,F (1105) ICCF 2020 1-0 (31)}) 5. Be2 (5. Nf3 Re8 6. Be2 Bb4 7. O-O c6 8. h3 Qa5 9. Bd2 d6 10. Qc2 e4 11. Nxe4 Nxe4 12. Bxb4 Qxb4 13. dxe4 Nd7 14. Nd2 Qc5 15. Bd3 Nf6 16. Rae1 Qg5 {Jakobi,W (1599)-Lankinen,T (1542) ICCF 2020 1-0 (33)}) 5... d6 6. h3 b6 7. Nf3 Bb7 8. O-O c6 9. a3 g6 10. b4 Bxb4 11. axb4 c5 12. b5 e4 13. dxe4 Nc6 14. bxc6 Bxc6 15. Bd3 b5 {Jakobi,W (1499) -Anderson,L (812) ICCF 2020 1-0}) (4. Nf3 Nc6 (4... e4 5. Ng5 Ng4 6. Qxg4 Rf8 7. Nxh7 d6 8. Qxg7 Ke7 9. Nd5+ Kd7 10. b4 Bxb4 11. Nxf8+ Kc6 12. Nxb4+ Kc5 13. Qd4+ Kxb4 14. Qb2+ Kc5 15. Qb5# {1-0 (15) Sitorus,Y-Sotoca Muñoz,A ICCF 2015}) 5. d4 exd4 6. exd4 Bb4 7. Bg5 Be7 8. d5 Nb8 9. Bd3 d6 10. O-O O-O 11. Qc2 h6 12. Bd2 Bg4 13. Nd4 c5 14. Nf5 Bh5 15. Rae1 Re8 {Moran,R (1868)-Arvidsson,D (1412) ICCF 2018 1-0 (27)}) 4... exd4 5. exd4 Bb4 6. Bd2 d6 (6... O-O 7. Bd3 h6 8. Nge2 d6 9. O-O Nc6 10. a3 Bxc3 11. Bxc3 Bg4 12. f3 Bh5 13. Nf4 Re8 14. g4 g5 15. Nxh5 Nxh5 16. gxh5 Qd7 17. f4 f6 18. fxg5 {Hospers,B (2050)-Kreveld,F (1307) ICCF 2018 1-0}) 7. Be2 Bf5 8. Bf3 Qe7+ 9. Qe2 Qxe2+ 10. Ngxe2 c6 11. Bf4 O-O 12. a3 Bxc3+ 13. Nxc3 Re8+ 14. Kd2 {Bray,P (1519)-Burrows,D (1582) ICCF 2020 1-0 (50)}) (2... a6 3. Nf3 (3. e3 Bc5 4. Nf3 d6 5. d4 exd4 6. exd4 Ba7 7. Bd3 h6 8. O-O Bg4 9. Re1+ Ne7 10. Nd5 Nbc6 11. Nxe7 Nxe7 12. h3 Bxf3 13. Qxf3 O-O 14. Qxb7 Qc8 {Bourgault,J (1824)-Kreveld,F (1219) ICCF 2018 1-0}) (3. g3 Bb4 (3... g6 4. Bg2 Bg7 5. d3 Nf6 6. Nf3 O-O 7. Nxe5 d6 8. Nf3 b6 9. Nd4 d5 10. Nxd5 Ng4 11. Be3 Nxe3 12. fxe3 Bxd4 13. exd4 Re8 14. O-O Nc6 15. Nf6+ {White,C (1764)-Anderson,L (978) ICCF 2017 1-0}) (3... Nf6 4. Bg2 Nc6 5. e3 d6 6. d4 Be6 7. d5 Bxd5 8. cxd5 {1-0 (8) Pernigotti,N-Ziga,V ICCF 2012}) 4. Nf3 Bxc3 5. dxc3 d6 6. Bg2 Be6 7. Qb3 Nc6 8. Nd4 exd4 9. Qxb7 Bd7 10. Bxc6 Bxc6 11. Qxc6+ Ke7 12. cxd4 h6 13. O-O Nf6 14. e4 Qd7 {Lonnee,G (1830)-Kreveld,F (1592) ICCF 2016 1-0}) 3... Nc6 4. e3 (4. e4 Bc5 5. Be2 Nf6 6. O-O O-O 7. Na4 Ba7 8. b3 Nxe4 9. d3 Nf6 10. Ba3 d6 11. c5 h6 12. b4 Be6 13. Nc3 b6 14. cxd6 cxd6 15. d4 exd4 { Harris,S (1547)-Kreveld,F (1425) ICCF 2017 1-0 (39)}) (4. g3 Bc5 5. Nxe5 Nxe5 6. d4 Bxd4 7. Qxd4 d6 8. f4 Qe7 9. fxe5 Qxe5 10. Qxe5+ dxe5 11. Nd5 c6 12. Nc7+ {1-0 (12) Kratochvíl,J (2262)-Kreveld,F (1592) ICCF 2016}) 4... Nf6 5. d4 exd4 (5... e4 6. Nd2 Bb4 7. Qc2 Bxc3 8. bxc3 Qe7 9. c5 O-O 10. a4 d5 11. cxd6 cxd6 12. Ba3 Rd8 13. Be2 Be6 14. O-O Qc7 15. Nxe4 Nxe4 16. Qxe4 d5 17. Qc2 { Bieringa,R-Kreveld,F (1307) ICCF 2018 1-0}) 6. exd4 Bb4 7. d5 Na7 8. Qe2+ Be7 9. Qc2 d6 10. Be2 Bd7 11. O-O O-O {0-1 (11) Frignani,G (1702)-Aymard,M (2144) ICCF 2005}) (2... b6 3. Nf3 (3. e3 c5 4. d4 cxd4 5. exd4 exd4 6. Qxd4 Nc6 7. Qe4+ Be7 8. a3 Nf6 9. Qd3 O-O 10. Nf3 Ba6 11. b4 Re8 12. Be2 d5 13. b5 d4 14. bxc6 dxc3 {Fanelli,F (1646)-Martindale,R ICCF 2007 0-1}) 3... Nc6 (3... d6 4. d4 exd4 5. Nxd4 Bb7 6. e4 Nf6 7. Bd3 Be7 8. O-O O-O 9. Be3 Nbd7 10. f3 h6 11. Nf5 Nh7 12. Qd2 Ne5 13. Bc2 Nxc4 14. Qc1 Nxe3 15. Qxe3 {Baer,S (1540)-Strobehn, A (1401) ICCF 2015 1/2-1/2 (66)}) (3... e4 4. Nxe4 Bb7 5. Nc3 Bxf3 6. exf3 Nc6 7. d4 Qf6 8. d5 Nd4 9. Bd3 O-O-O 10. O-O Re8 11. Be3 Rxe3 12. fxe3 Nf5 13. Bxf5 Qxf5 14. Qa4 Kb7 15. e4 {Brower,W-Knouse,C ICCF 2013 1-0}) (3... Bd6 4. Ne4 Nc6 5. Nxd6+ cxd6 6. e4 Nf6 7. d3 O-O 8. Be2 d5 9. cxd5 Nb4 10. Nxe5 b5 11. Qb3 Qe7 12. Bf4 a5 13. a3 a4 14. Qxb4 d6 15. Rc1 {Pronovost,D (1837)-Blanchard,A (1406) ICCF 2014 1-0}) 4. e4 (4. g3 Nf6 5. Bg2 Bc5 6. O-O O-O 7. e4 Re8 8. d3 Nd4 9. Ne2 d6 10. Nexd4 Bxd4 11. Nxd4 exd4 12. e5 Bh3 13. Bxh3 Rxe5 14. Bg2 Rb8 15. h3 Qd7 {Honey,S-Rixon,A (1551) ICCF 2017 1-0 (49)}) 4... Bb7 5. Bd3 Nf6 6. Nd5 d6 7. b4 Be7 8. b5 Nb8 9. O-O a5 10. Bc2 Nbd7 11. d4 Bxd5 12. cxd5 exd4 13. Nxd4 Nc5 14. Bb2 {Tanner,A (1674)-Cox,R (1731) ICCF 2019 1/2-1/2 (44)}) (2... Qf6 3. Nf3 (3. Nd5 Qc6 4. e3 e4 5. d3 exd3 6. Bxd3 Nf6 7. Nf3 Bc5 8. O-O Qd6 9. h3 c6 10. Nc3 Bb6 11. b3 g5 12. Bb2 g4 13. hxg4 Nxg4 14. g3 h5 {Fanelli,F (1556) -Navara,E (1428) ICCF 2015 0-1 (30)}) 3... d6 (3... Qc6 4. Nxe5 Qf6 5. Nf3 Bb4 6. Nd5 Bxd2+ 7. Qxd2 Qc6 8. Qg5 g6 9. Qe5+ Qe6 10. Qxh8 b5 11. Qxg8# {1-0 (11) Corrêa,R-Jiranek,H ICCF 2020}) 4. g3 Nc6 5. Bg2 Bf5 6. Nd5 Qd8 7. O-O Nge7 8. d3 Nd4 9. Nxd4 Nxd5 10. Nxf5 Qf6 11. Nxg7+ Bxg7 12. cxd5 O-O 13. Bd2 Rab8 14. Bc3 {Gaspar,F (1605)-Navara,E (1546) ICCF 2012 1-0 (30)}) (2... Qh4 3. Nf3 Qf4 (3... Qh6 4. Nxe5 Nf6 5. d4 Qh4 6. g3 Qh5 7. Bg2 Bb4 8. g4 Qh4 9. h3 O-O 10. Nf3 Nc6 11. Nxh4 d5 12. cxd5 Na5 13. Qa4 Nxd5 14. Bxd5 Bd6 15. Qxa5 {Beavan,R (1932)-Haws,A (1287) ICCF 2020 1-0}) 4. e3 Qf6 5. Nd5 Qd8 6. Nxe5 c6 7. Nc3 Qf6 8. d4 d6 9. Nf3 h6 10. h3 b6 11. Bd3 d5 12. cxd5 Bb4 13. dxc6 Nxc6 14. a3 { Soltýs,L-Matej,P (1745) ICCF 2009 1-0}) (2... f6 3. Nf3 (3. g3 Nc6 4. Bg2 b6 5. e3 Bd6 6. Nge2 Nge7 7. O-O O-O 8. d4 f5 9. d5 Na5 10. b3 Bb7 11. Bb2 c6 12. dxc6 dxc6 13. f4 Qc7 14. Qc2 Rad8 {Pirttimäki,M (1713)-Weggen,R (1747) ICCF 2015 1/2-1/2}) 3... Bc5 (3... Ne7 4. e3 Nec6 5. d4 d6 6. b4 Nxb4 7. Qa4+ N8c6 8. d5 Na6 9. dxc6 bxc6 10. Qxc6+ Bd7 11. Qxa6 c5 12. Bd3 Be7 13. Be4 f5 14. Bxa8 {1-0 (14) Eliseev,V-Desnoyers,C ICCF 2012}) 4. e3 Ne7 5. d4 exd4 6. exd4 Bb4 7. Bd3 O-O 8. Qc2 Bxc3+ 9. Qxc3 Re8 10. O-O Rf8 11. Qc2 d6 12. Bxh7+ Kf7 13. Re1 Rh8 14. Ng5+ {Hernández Delgado,J (1889)-De León López,A (1495) ICCF 2015 1-0}) (2... g6 3. d4 (3. e3 Nf6 4. Nf3 Ng4 5. h3 Nf6 6. Nxe5 Qe7 7. Nf3 Nc6 8. d4 a6 9. Bd3 Nb4 10. Bb1 d6 11. d5 h5 12. a3 a5 13. axb4 b6 14. bxa5 bxa5 {Needham,S-Sutcliffe,P (1505) ICCF 2018 1-0 (31)}) (3. e4 Bb4 4. a3 Bxc3 5. dxc3 Nf6 6. Bg5 h6 7. Bh4 g5 8. Bg3 Nxe4 9. Bxe5 f6 10. Qh5+ Kf8 11. Bd4 Qe7 12. Be2 c5 13. Be3 Nc6 14. Nf3 b6 {Sprusanský,F (1455)-Bruno,G (1722) ICCF 2020 1-0 (33)}) (3. Nf3 Bg7 4. d4 exd4 5. Nxd4 Qf6 6. e3 Ne7 7. Nf3 O-O 8. Bd3 d6 9. O-O Bg4 10. Be2 Nd7 11. h3 Be6 12. Ne4 Qf5 13. Ng3 Qc5 14. Rb1 Bxc4 { Fanelli,F (1487)-Cetina,F ICCF 2016 1-0 (34)}) 3... exd4 (3... Bb4 4. dxe5 Nc6 5. Qb3 Qe7 6. Nf3 f6 7. exf6 Nxf6 8. a3 Bxc3+ 9. Qxc3 O-O 10. Bh6 Re8 11. c5 Ne4 12. Qc4+ Kh8 13. e3 b6 14. Rd1 Qf6 15. Qc2 {Sawicki,W-Randolph,D (1563) ICCF 2010 1-0 (30)}) (3... Bg7 4. dxe5 Bxe5 5. Nf3 Bg7 6. e4 Nc6 7. Bg5 Nge7 8. Nd5 d6 9. Qd2 Kf8 10. Nd4 f6 11. Bxf6 Bxf6 12. Nxf6 Nf5 13. Nxf5 Qxf6 14. Ne3 Qd4 15. O-O-O {Parsons,L-Dragulescu,N (1968) ICCF 2009 1-0 (33)}) 4. Qxd4 Qf6 5. Qd3 c6 6. Nf3 Bg7 7. Ne4 Qd8 8. Nd6+ Kf8 9. Bf4 Nf6 10. Ng5 {1-0 (10) Deneuville,C (2293)-Nilssen,T (1415) ICCF 2019}) (2... c5 3. Nf3 (3. g3 d6 4. Bg2 Nh6 5. d3 Qf6 6. Nd5 Qd8 7. Nf3 Be6 8. Ng5 Be7 9. Nxe6 fxe6 10. Nxe7 Qxe7 11. Bxh6 gxh6 12. Qd2 a5 13. Qxh6 Rf8 14. O-O Na6 {Hagman,M (1840)-Medina,G ICCF 2015 1-0 (42)}) 3... Nf6 4. Nxe5 Bd6 5. Nf3 O-O 6. g3 Bc7 7. Bg2 Nc6 8. O-O d5 9. cxd5 Nxd5 10. d3 Nxc3 11. bxc3 Bg4 12. Ba3 Bd6 13. Qc2 Re8 14. e4 { Gaspar,F (1601)-Weggen,R (1848) ICCF 2013 0-1 (40)}) (2... Na6 3. Qb3 c6 4. Nf3 d6 5. d4 exd4 6. Nxd4 g6 7. Qc2 Bg7 8. Qe4+ Qe7 9. Be3 Nc5 10. Qxe7+ Nxe7 11. O-O-O O-O 12. g3 Nf5 13. Nxf5 Bxf5 14. Rxd6 {Pardoe,I-Wood,B (1750) ICCF 2012 1/2-1/2}) (2... d5 3. cxd5 Nf6 4. e4 Bc5 5. h3 O-O 6. Bd3 Qd7 7. Nge2 Bxf2+ 8. Kxf2 Qe7 9. Ng3 c6 10. Qb3 cxd5 11. Nxd5 Nxd5 12. exd5 b6 13. Rf1 Bb7 14. Be4 { Åsten,E (1805)-Babugeon,J (1736) ICCF 2017 1-0}) (2... Ne7 3. d4 exd4 4. Qxd4 Nec6 5. Qd2 d6 6. b3 g6 7. g3 Bg7 8. Bb2 O-O 9. Bg2 Re8 10. h4 Nd7 11. h5 Nc5 12. hxg6 fxg6 13. Nf3 Nb4 14. Kf1 {Bogatyrev,I (2335)-Koops,M (1915) ICCF 2020 1-0 (28)}) (2... Nh6 3. h3 c6 4. Nf3 Bb4 5. d3 Bxc3+ 6. bxc3 d6 7. Bxh6 gxh6 8. e3 c5 9. Be2 b6 10. e4 Rg8 11. Qd2 Rxg2 12. Qxh6 Ke7 13. Qxh7 Qf8 14. Bf1 { Lanca,L (1567)-Medina,G ICCF 2014 1-0 (54)}) 3. Nd5 (3. Qc2 Nf6 (3... Nc6 4. e3 a5 (4... Nf6 5. Nge2 d5 6. Nxd5 Nxd5 7. cxd5 Qxd5 8. Nc3 {1-0 (8) Gorbatyuk, V-Delis,E ICCF 2017}) 5. Nge2 Nf6 6. a3 Bc5 7. Ng3 d6 8. Be2 O-O 9. O-O Be6 10. Nb5 Ne8 11. b3 f5 12. f4 Qd7 13. fxe5 dxe5 14. Bb2 e4 15. Rad1 {Gierth,K (2303) -Diotallevi,M (2375) ICCF 2003 1/2-1/2 (26)}) (3... Ne7 4. Nf3 d6 (4... Ng6 5. a3 Bxc3 6. Qxc3 d6 7. d4 exd4 8. Qxd4 O-O 9. Bg5 Nc6 10. Qc3 Qe8 11. Bd2 h6 12. e3 Bf5 13. Be2 Qe7 14. Bd3 {1-0 (14) Enoksson,B (1632)-Brown,P (1691) ICCF 2016 }) 5. Qa4+ Nbc6 6. e4 Bd7 7. Qb3 O-O 8. Bd3 Bg4 9. Be2 f5 10. c5+ Kh8 11. cxd6 Qxd6 12. exf5 Nxf5 13. Ng5 Bxe2 14. Nxe2 Nfd4 15. Nxd4 {Giessing,K (1520) -Mucur,Y ICCF 2016 0-1}) 4. Nf3 (4. a3 Bxc3 (4... Ba5 5. b4 Ng4 6. f3 d6 7. bxa5 O-O 8. fxg4 Qh4+ 9. g3 Qxg4 10. Qe4 Nc6 11. Qxg4 Bxg4 12. Bg2 Nxa5 13. d3 c6 14. Rb1 Rfc8 15. Ne4 Rd8 16. Bd2 {Tanner,A-Gosling,D ICCF 2011 1-0 (44)}) 5. Qxc3 Nc6 (5... d6 6. d3 b6 7. d4 exd4 8. Qxd4 Bb7 9. Bg5 Nbd7 10. Qd2 O-O 11. e3 h6 12. Bxf6 Nxf6 13. f3 Qe7 14. Bd3 d5 15. Ne2 Rfe8 16. Kf2 Rad8 17. cxd5 { Tanner,A (1646)-Elwood,D (1851) ICCF 2019 0-1 (37)}) (5... O-O 6. Qxe5 d5 7. Qc3 Re8 8. Nf3 Nc6 9. d3 dxc4 10. Bg5 cxd3 11. e3 Bf5 12. Rd1 Ne4 13. Qxd3 Qc8 14. Qc4 Nxg5 15. Nxg5 Ne5 16. Qf4 Bg4 17. f3 {Ignatov,B (2146)-Nitschke,N (2029) ICCF 2019 1/2-1/2 (27)}) 6. d3 d5 7. g3 dxc4 {0-1 (7) Reimer,R-Savva,J ICCF 2017}) (4. d3 c5 5. Bg5 h6 6. Bh4 Ba5 7. Nf3 d6 8. O-O-O O-O 9. Nd5 g5 10. Bg3 Nxd5 11. cxd5 f5 12. h4 f4 13. Bh2 g4 14. Nd2 b5 15. g3 Na6 {Bishop, E-Stepán,J (1938) ICCF 2017 0-1}) 4... Qe7 (4... Bxc3 5. Qxc3 (5. dxc3 d6 6. Bg5 h6 7. Bh4 b6 8. e3 Bb7 9. Bxf6 Qxf6 10. Bd3 Nd7 11. Be4 Bxe4 12. Qxe4 O-O 13. O-O Qe6 14. Qc6 Rfc8 15. Rfd1 a5 16. e4 Nc5 {Moujan,P (1768)-Franklin,T ICCF 2018 0-1 (72)}) 5... e4 (5... d6 6. b3 O-O 7. Bb2 c5 8. e3 Nc6 9. Be2 Bg4 10. h3 Bh5 11. d3 d5 12. cxd5 Nxd5 13. Qd2 Re8 14. O-O Qd6 15. Rfe1 Rad8 16. a3 b6 17. Qc2 {Sifré Calafat,F (2063)-Ordobàs Martínez,V (2181) ICCF 2021 1/2-1/2 (35)}) 6. Qe5+ Qe7 7. Qxe7+ Kxe7 8. Nd4 d5 9. b4 (9. d3 dxc4 10. dxc4 Rd8 11. Nb5 Na6 12. Bd2 c6 13. Na3 c5 14. Nc2 Nc7 15. h3 h5 16. Rg1 Ne6 17. g4 b6 18. g5 Ne8 19. O-O-O a5 20. h4 a4 {Tsygankov,E (2494)-Krzyzanowski,W (2507) ICCF 2020 1/2-1/2 (28)}) 9... Nc6 10. Nxc6+ bxc6 11. Ba3 dxc4 12. e3 Be6 13. b5+ Kd7 14. bxc6+ Kxc6 15. Rc1 Kb5 16. Bb2 {Mason,I (2194)-Hollands,G (2206) ICCF 2017 1-0} Rab8 17. h4 h5 18. Be2 c5 19. f3 Kc6 20. Bc3 Rb6 21. Kf2 Kd6 22. Rc2 { 1/2-1/2 (22) Jørgensen,B (2343)-Harabor,M (2304) ICCF 2017}) (4... Nc6 5. Nd5 ( 5. e3 a5 6. Be2 O-O 7. O-O Bxc3 8. bxc3 d6 9. d4 e4 10. Nd2 Bf5 11. Rb1 b6 12. c5 bxc5 13. dxc5 d5 14. Bb2 Rb8 15. Qa4 Bd7 16. Ba1 Qe7 {Jefferson,N (2133) -Bruce,R (1776) ICCF 2014 1/2-1/2 (59)}) 5... a5 6. a3 Bc5 7. e3 d6 8. b3 Be6 9. Nc3 Kf8 10. Be2 Qd7 11. h3 Rb8 12. d3 h5 13. Ng5 Bf5 14. Bd2 Qd8 15. O-O Rh6 16. f4 {Cuccumini,V (1984)-Sazonov,N (2075) ICCF 2018 1-0 (54)}) (4... d6 5. g3 Bxc3 6. Qxc3 c5 7. Bg2 Nc6 8. O-O O-O 9. d3 h6 10. e3 Bd7 11. b3 Qc8 12. Re1 Bh3 13. Bh1 Rb8 14. Bb2 Re8 15. Nd2 Qd7 16. Ne4 {Rhodes,L (1810)-Elwood,D (1945) ICCF 2020 0-1 (26)}) 5. e4 (5. d3 e4 6. dxe4 Nxe4 7. Bd2 Nxd2 8. Nxd2 Bxc3 9. Qxc3 O-O 10. e3 d6 11. Bd3 Be6 12. O-O Nd7 13. f4 f5 14. e4 Qf6 15. Qxf6 Rxf6 16. b3 Nc5 {Wegelin,R (2304)-Bredenhof,B (2258) ICCF 2009 1/2-1/2 (34)}) 5... O-O (5... Bxc3 6. bxc3 d6 7. Rb1 O-O 8. d3 Nc6 (8... Nbd7 9. g3 Nc5 10. Bg2 Ne8 11. Nh4 g6 12. O-O Ng7 13. Be3 b6 14. d4 Nb7 15. c5 Na5 16. Bh6 Ba6 17. Rfe1 dxc5 18. dxe5 Rad8 19. Qc1 Qxe5 20. f4 {Laine,J (2150)-Trasciatti,M (2144) ICCF 2017 1/2-1/2 (42)}) 9. g3 Nd7 10. Bg2 Nb6 11. O-O f5 12. exf5 Bxf5 13. Nh4 Bg4 14. Be4 Rf7 15. Be3 Raf8 16. c5 dxc5 17. Rb5 {Laine,J (2166)-Heyn, W (2200) ICCF 2017 1-0 (40)}) 6. Be2 (6. a3 Bxc3 7. bxc3 d6 8. Be2 Nc6 9. d3 h6 10. O-O Nh7 11. a4 b6 12. Nd2 Rb8 13. Re1 Bd7 14. Nf1 f5 15. exf5 Bxf5 16. Bf3 Qd7 17. Ng3 Bg6 {Kratochvíl,J (2278)-Lubas,J (2265) ICCF 2018 1/2-1/2 (29)}) 6... d6 7. O-O Bg4 8. d3 Nc6 9. Nd5 Nxd5 10. cxd5 Bxf3 11. dxc6 Bxe2 12. cxb7 Bxf1 13. bxa8=Q Rxa8 14. Kxf1 Bc5 {Compagnie,L (2419)-Vegjeleki,A (2226) ICCF 2017 1/2-1/2} 15. Kg1 Bd4 16. Be3 Bxe3 17. fxe3 c5 18. Qc4 a5 {1/2-1/2 (18) Whaley,M (2382)-Douglas,S (2357) ICCF 2017}) (3. g3 Bxc3 (3... c6 4. Qb3 Ba5 5. Bg2 Nf6 6. e4 O-O 7. Nge2 d6 8. O-O Nbd7 9. Qa3 Bb6 10. d3 Nc5 11. Nd1 Bg4 12. Re1 Ne6 13. Be3 Bxe2 14. Rxe2 Ng4 15. b4 {Marthinsen,A (1710)-Walton,J ICCF 2018 0-1 (31)}) (3... Ne7 4. Bg2 O-O 5. e4 Nbc6 6. Nge2 d6 7. O-O Bc5 8. h3 f5 9. d3 Nd4 10. Nxd4 Bxd4 11. Ne2 Bb6 12. exf5 Nxf5 13. g4 Nh4 14. Bd5+ Kh8 15. Ng3 {Atabek,F-Yrjölä,J ICCF 1984 1/2-1/2 (33)}) 4. bxc3 (4. dxc3 d6 (4... Nc6 5. Bg2 Nge7 6. e4 d6 7. h3 (7. b4 a6 8. Qa4 Bd7 9. Qb3 O-O 10. Nf3 a5 11. b5 Nb8 12. O-O h6 13. Be3 b6 14. a4 Be6 15. Rad1 Nd7 16. Ne1 Rc8 17. f4 f6 18. f5 Bf7 {Michas,J (1717)-Holt,F (1671) ICCF 2017 1-0 (40)}) 7... Be6 8. b3 Qd7 9. Nf3 h6 10. Qe2 a5 11. a4 f5 12. Nd2 f4 13. Ba3 g5 14. O-O-O O-O-O 15. Nf3 Ng8 16. Rd2 {Vanosmael,A (2515)-Glaser,H (2519) ICCF 2001 0-1 (38)}) 5. e4 (5. Bg2 Nc6 (5... f5 6. c5 e4 7. cxd6 cxd6 8. Bf4 d5 9. Nh3 Nf6 10. f3 O-O 11. fxe4 fxe4 12. O-O Qb6+ 13. Kh1 Qxb2 14. Bd2 Nc6 15. Qc1 Qxc1 16. Raxc1 Bg4 17. Nf4 { Gomolka,E-Zarges,R (2184) ICCF 2014 0-1 (27)}) 6. Nf3 (6. c5 Be6 7. cxd6 cxd6 8. Nf3 h6 9. O-O Nf6 10. b3 d5 11. Bb2 Qc7 12. Rc1 O-O 13. Qc2 Rfd8 14. Nd2 b5 15. e4 Rac8 16. Qb1 Qb6 17. exd5 Nxd5 {Roxo,A (1947)-Müller-Töpler,M (1886) ICCF 2019 1-0 (35)}) 6... Nge7 7. O-O Be6 (7... O-O 8. b3 h6 9. Ne1 Be6 10. Nc2 Qd7 11. Ne3 Bh3 12. Bxh3 Qxh3 13. Nd5 Nxd5 14. cxd5 Ne7 15. c4 Rae8 16. Bb2 f5 17. f4 Ng6 18. Rf3 Qg4 19. e3 {Belchev,B (2181)-Narciso,M (2159) ICCF 2019 1/ 2-1/2 (39)}) 8. Qb3 Rb8 9. Ng5 Qd7 10. Nxe6 Qxe6 11. Bg5 O-O 12. Rfd1 Na5 13. Qa4 b6 14. Bxe7 Qxe7 15. b4 Nxc4 16. Qb5 Na3 {Moran,R (1829)-Ong,A (1448) ICCF 2017 1-0 (32)}) 5... Nc6 6. Be3 (6. Nf3 h6 7. Bg2 Be6 8. Qe2 Qd7 9. h3 Nf6 10. Nd2 O-O 11. Nf1 Ne7 12. Ne3 c6 13. b3 a5 14. h4 a4 15. Ba3 Rfd8 16. O-O c5 17. Rfd1 axb3 {Savoya,A (1882)-Calvo,R (2215) ICCF 2008 1/2-1/2 (31)}) 6... Be6 7. Qd2 Nf6 8. f3 Qd7 9. O-O-O Na5 10. b3 b5 11. h4 bxc4 12. b4 Nb7 13. Bg5 a5 14. Bxf6 gxf6 15. Rh2 Qa4 {Bennewitz,B (1977)-Kolarík,J (2237) ICCF 2009 0-1}) 4... d6 5. Bg2 (5. d4 Nc6 6. Bg2 Qe7 7. Nf3 Nf6 8. O-O O-O 9. Ba3 e4 10. Nd2 e3 11. Nb3 exf2+ 12. Rxf2 Ng4 13. Rf3 Ne3 14. Qd3 Nxg2 15. Kxg2 Bg4 16. Rf2 Rae8 { Ellis,A (2058)-Moujan,P (1868) ICCF 2017 0-1 (37)}) 5... Nc6 (5... Ne7 6. d4 ( 6. d3 O-O 7. Nh3 Nbc6 (7... c5 8. O-O Nbc6 9. e4 Qc7 10. Rb1 Rb8 11. f4 exf4 12. gxf4 Bxh3 13. Bxh3 f5 14. Bd2 Rbe8 15. Be1 fxe4 16. dxe4 Nc8 17. Bg3 Nb6 18. Re1 g6 19. a4 {Guimera Manjon,A (2351)-Armani,G (2311) ICCF 2020 1-0 (53)}) 8. O-O f5 9. f4 Qe8 10. Rb1 Rb8 11. fxe5 dxe5 12. Ba3 Rf6 13. d4 Bd7 14. e4 fxe4 15. d5 Na5 16. d6 Rxf1+ 17. Bxf1 cxd6 {Aliekhin,V (2221)-Bernad Suárez,A (2118) ICCF 2008 1/2-1/2 (43)}) 6... Nbc6 7. Nf3 O-O 8. O-O f6 (8... Bg4 9. dxe5 dxe5 10. Qc2 Qd6 11. Ng5 Bf5 12. Qb3 Qf6 13. Nf3 b6 14. Ba3 Rfe8 15. Rad1 Na5 16. Qb5 Nec6 17. Qa4 Rad8 18. c5 a6 19. cxb6 cxb6 20. Ng5 {Lindberg,W (1747)-Smith,M (1950) ICCF 2015 0-1 (52)}) (8... Rb8 9. a4 b6 10. a5 f6 11. axb6 axb6 12. e4 Bg4 13. Be3 Na5 14. Qd3 Qd7 15. Nd2 Ra8 16. Rfe1 c5 17. Reb1 Qc7 18. f4 Kh8 19. f5 exd4 20. cxd4 {Schubert,F (2393)-Kögler,K (2560) ICCF 2009 1-0 (61)}) 9. Ba3 (9. c5 e4 10. cxd6 cxd6 11. Nd2 d5 12. Ba3 f5 13. e3 Re8 14. Qc2 Be6 15. Rfc1 Rc8 16. Bf1 Na5 17. Rab1 Qd7 18. Bb4 Nc4 19. Nxc4 dxc4 20. Bxe7 Rxe7 {Hansen,J (2318)-Jørgensen,B (2360) ICCF 2020 1/2-1/2 (34)}) (9. e4 b6 10. Be3 Na5 11. c5 Bg4 12. Qa4 Qd7 13. Qxd7 Bxd7 14. cxd6 cxd6 15. Nd2 Rac8 16. Rfc1 h6 17. f4 Rfd8 18. fxe5 dxe5 19. Bf2 Nc4 20. Nxc4 Rxc4 {Duchardt,A (2317)-Balta,M (2340) ICCF 2019 1/2-1/2}) 9... Rb8 10. e3 Bg4 11. Qd3 b6 12. Nd2 Qd7 13. f4 exf4 14. exf4 Rfe8 15. Nb3 Bf5 16. Qd2 Nd8 17. c5 {Simek,J (2141)-Cade,S (2279) ICCF 2016 1/2-1/2 (35)}) (5... Nd7 6. d3 f5 7. Nf3 Ngf6 8. O-O O-O 9. Rb1 Qe8 10. Qc2 Qh5 11. Ng5 Nc5 12. d4 Nce4 13. Nxe4 fxe4 14. h4 h6 15. c5 d5 16. dxe5 Qxe5 17. c4 {Matyukhin,S (2432)-García Corada,P (2570) ICCF 2005 1/2-1/2 (40)}) (5... c5 6. e4 Nc6 7. Ne2 f5 8. exf5 Bxf5 9. d4 Nf6 10. O-O O-O 11. Re1 Qc7 12. Bg5 Kh8 13. dxc5 dxc5 14. Qa4 Qf7 15. Qb5 Ne4 16. Be3 Nd6 17. Qxc5 {Wandl,W-Rada,H (2414) ICCF 2016 0-1 (46)}) (5... Qe7 6. Rb1 Nd7 7. Nf3 Ngf6 8. O-O e4 9. Nd4 O-O 10. Nc2 Nb6 11. d3 h6 12. Re1 Bd7 13. f3 exd3 14. exd3 Qd8 15. Bf4 Re8 16. Rxe8+ Bxe8 17. Qe2 {Morley,P (2372)-Fuller,W (2378) ICCF 2013 1/2-1/2 (27)}) 6. d3 (6. Rb1 Nge7 7. Nf3 O-O 8. O-O b6 9. Qc2 (9. d4 Bf5 10. Rb2 Qc8 11. Re1 Be4 12. Ng5 Bxg2 13. Kxg2 f6 14. Ne4 Na5 15. Qd3 f5 16. Nd2 e4 17. Qc2 Qe6 18. d5 Qf7 19. e3 c6 20. Qa4 cxd5 {Lederer,P-Steinbacher,T ICCF 2018 0-1 (35)}) 9... Bf5 10. e4 Bg4 11. d3 Qd7 12. Re1 f5 13. exf5 Bxf5 14. Nh4 Bh3 15. Be4 h6 16. d4 Rae8 17. Be3 g5 {Krüger,D-Mulde,R (1988) ICCF 2011 1/2-1/2}) (6. e3 Be6 7. Qa4 Nge7 8. d4 exd4 9. cxd4 Bd7 10. Qc2 Ng6 11. Ne2 Rb8 12. O-O O-O 13. Rb1 b6 14. Bd2 Qc8 15. Rfe1 Nce7 16. Bc3 Bh3 17. Bh1 Qg4 {Mann,R (2016)-Clayton,I (2072) ICCF 2019 0-1}) 6... Nge7 (6... f5 7. f4 ( 7. Nf3 Qe7 8. O-O Nf6 9. Rb1 O-O 10. Ne1 Nd8 11. Nc2 c6 12. a4 Ne6 13. d4 Qc7 14. Ba3 Re8 15. a5 Ng5 16. c5 exd4 17. cxd6 Qxa5 18. Bb4 Qa2 {Sande,Ø (2149) -Stensen,L (2118) ICCF 2020 1/2-1/2 (49)}) 7... Nf6 8. fxe5 Nxe5 (8... dxe5 9. Nh3 O-O 10. O-O Qe7 11. Nf2 Be6 12. Qa4 Nd8 13. e4 Re8 14. Qa5 Nc6 15. Qb5 Rab8 16. Bg5 Rf8 17. Rae1 a6 18. Qb2 Qc5 19. Be3 Qd6 20. Qe2 {Kratochvíl,J (2090) -Oren,I (2322) ICCF 2015 1-0 (61)}) 9. Nf3 Nxf3+ 10. Bxf3 O-O 11. Rb1 Rb8 12. Qb3 Rf7 13. O-O b6 14. Bg5 Qe8 15. Qb5 h6 16. Qxe8+ Nxe8 17. Bd2 {1/2-1/2 (17) Boldysh,K (2348)-Leupold,V (2382) ICCF 2011}) (6... Bd7 7. Nf3 Rb8 8. O-O h6 9. Rb1 Nf6 10. e4 O-O 11. h3 a6 12. Be3 b6 13. Nd2 Qe7 14. a3 Nh7 15. d4 Na5 16. f4 Rbe8 17. Qc2 exf4 18. gxf4 {Linden,W (1920)-Silin,V (2303) ICCF 2013 1/2-1/ 2 (44)}) 7. f4 (7. Nf3 O-O (7... f6 8. e4 Be6 9. Rb1 b6 10. O-O Qd7 11. Re1 Bh3 12. d4 O-O 13. c5 Bxg2 14. Kxg2 bxc5 15. d5 Nd8 16. c4 Nf7 17. Be3 Rab8 18. h4 Rb6 19. Qd2 {Azzi,R (1492)-Biedermann,T (2489) ICCF 2019 0-1}) 8. O-O Bg4 (8... h6 9. Ne1 (9. Rb1 Rb8 10. Nh4 Bg4 11. Re1 Qd7 12. Qa4 a6 13. Nf3 Bh3 14. Bh1 Be6 15. Nd2 b5 16. cxb5 axb5 17. Rxb5 Ra8 18. Qd1 Rxa2 19. Bb2 Rb8 20. Rxb8+ Nxb8 {Mironchik,A (2091)-Osipov,A (2023) ICCF 2013 0-1 (74)}) 9... Be6 10. Rb1 b6 11. f4 Qd7 12. Qa4 Rab8 13. Rb2 f6 14. f5 Na5 15. Qxd7 Bxd7 16. e4 Nb7 17. Be3 Nc5 18. Bf3 Na4 19. Rc2 a6 20. h4 {Laine,J (2311)-Steinbacher,T (2354) ICCF 2018 1/2-1/2 (35)}) (8... f6 9. e4 Be6 10. Nd2 Qd7 11. Rb1 b6 12. f4 Bg4 13. Qe1 exf4 14. gxf4 Rae8 15. Nf3 f5 16. Qg3 Kh8 17. Rb2 fxe4 18. dxe4 Bxf3 19. Bxf3 Ng8 20. Rg2 {Sifré Calafat,F (2057)-Quevedo García,V (2296) ICCF 2018 1/2-1/2 (36)}) (8... f5 9. Rb1 h6 10. Ne1 f4 11. Nc2 Rb8 12. Nb4 Nxb4 13. Rxb4 Ng6 14. d4 b6 15. c5 dxc5 16. Qb3+ Kh8 17. dxc5 a5 18. Ra4 Bd7 {0-1 (18) Theveniaud,C (1953)-Damarez,P (1834) ICCF 2013}) 9. Rb1 b6 10. Re1 Qd7 11. Qb3 a6 12. a4 Kh8 13. Qc2 Rae8 14. e4 f5 15. exf5 Bxf5 16. Nd2 a5 17. Rb5 Ng8 18. Ne4 Bg4 {Kratochvíl,J (2221)-Binas,J (2263) ICCF 2013 1/2-1/2 (30)}) (7. Rb1 O-O 8. Nf3 b6 9. O-O Qe8 10. Re1 f6 11. Nh4 Bg4 12. Bd2 Qd7 13. Bh1 f5 14. f4 exf4 15. Bxf4 Rae8 16. Qa4 Ne5 17. Qxd7 Nxd7 18. Bd2 h6 {Schön,A (2481) -Nowakowski,M (2407) ICCF 2007 1-0 (79)}) (7. e4 O-O 8. Nh3 f5 9. exf5 Bxf5 10. O-O Qc8 11. Ng5 h6 12. Ne4 Bh3 13. Bxh3 Qxh3 14. f3 b6 15. Rb1 a6 16. Rb2 Qe6 17. Rff2 Rf7 18. Kg2 Raf8 {Weseman,G (2120)-Hechl,G (2157) ICCF 2012 1/2-1/2 (62)}) (7. Nh3 Bd7 8. f4 Qc8 9. Nf2 exf4 10. Bxf4 Ng6 11. Bc1 Nce5 12. Qb3 Rb8 13. d4 Nc6 14. Qc2 O-O 15. h4 Nge7 16. Qd3 Na5 17. Rb1 b6 18. O-O Qe8 {Trs,J (2155)-Pastukhov,I (2288) ICCF 2017 1/2-1/2 (41)}) 7... exf4 (7... O-O 8. Nh3 Ng6 9. O-O Bxh3 10. Bxh3 exf4 11. gxf4 f5 12. Rb1 Rb8 13. Bd2 Qf6 14. Bg2 Kh8 15. Bh1 Nd8 16. e3 b6 17. Qa4 a5 18. d4 Ne6 19. Qc2 {Stubbs,M (2234)-Weil,T (1982) ICCF 2019 1/2-1/2 (63)}) (7... Ng6 8. Nf3 exf4 9. Bxf4 Nxf4 10. gxf4 O-O 11. O-O Re8 12. Qd2 Rb8 13. e4 a6 14. Kh1 Bd7 15. Rg1 b5 16. cxb5 axb5 17. d4 Na5 18. e5 Nc4 19. Qd3 {Duduev,V (2230)-Kireev,V (2165) ICCF 2013 1/2-1/2}) 8. Bxf4 Bd7 9. Nf3 O-O 10. O-O Qc8 (10... Ng6 11. Bc1 Qc8 12. Nd4 Bh3 13. Bxh3 Qxh3 14. Rb1 Nce5 15. e4 Ng4 16. Qe2 b6 17. Nb5 Rfc8 18. Rb2 a6 19. Nd4 Rf8 20. Nf5 Rae8 21. Qg2 Qxg2+ {1/2-1/2 (21) Smith,A (2167)-Castle Jr.,T (2147) ICCF 2019}) 11. d4 Bh3 12. e4 Bxg2 13. Kxg2 Qd7 14. Qe2 Rae8 {Vasseur,O (2129) -Owens,J (2153) ICCF 2017 0-1 (41)}) (3. Nf3 Bxc3 4. dxc3 (4. bxc3 d6 (4... Nc6 5. d3 (5. d4 e4 6. Ng5 Nf6 7. d5 Ne5 8. Qd4 d6 9. Nxe4 Nxe4 10. Qxe4 f5 11. Qd4 Qf6 12. e3 c5 13. Qd1 Bd7 14. Qb3 b6 15. Be2 O-O 16. O-O Rfb8 {Dantas,A (1693) -Costa,H ICCF 2010 1-0 (48)}) (5. g3 Nf6 6. Bg2 Qe7 7. O-O d6 8. d3 O-O 9. Rb1 Rb8 10. Ng5 Bd7 11. e4 h6 12. Nf3 a6 13. Qc2 b5 14. cxb5 axb5 15. a3 Be6 16. d4 Bc4 {Linden,W (1880)-Puertas Covarrubias,F (1909) ICCF 2014 1/2-1/2}) 5... d6 6. h3 Nf6 7. Bg5 h6 8. Bh4 e4 9. Nd2 g5 10. Bg3 Bf5 11. Nb3 Qe7 12. d4 e3 13. Qc1 exf2+ 14. Bxf2 O-O-O 15. e3 Rde8 16. Be2 {Fanelli,F (1638)-Ramsden,J (1878) ICCF 2014 0-1}) 5. e4 (5. d4 e4 6. Nd2 f5 (6... Nf6 7. e3 O-O 8. Be2 c5 9. O-O Re8 10. Nb3 Qc7 11. a4 Bg4 12. Bxg4 Nxg4 13. Qxg4 Nd7 14. Ba3 f5 15. Qxf5 b6 16. Nd2 Nf6 17. a5 Rad8 {1-0 (17) Saarikoski,K (2231)-Arppi,H (2289) ICCF 2020} ) 7. e3 Nf6 8. Ba3 Nc6 9. c5 d5 10. Be2 O-O 11. Rb1 Qe8 12. O-O Qg6 13. Re1 Rb8 14. Rb2 Rd8 15. Qc2 Kh8 16. g3 Bd7 {Beekes,A (1836)-Egner,M ICCF 2015 1/2-1/2 (39)}) (5. c5 Nf6 6. cxd6 cxd6 7. g3 O-O 8. Bg2 Nc6 9. O-O Re8 10. d4 e4 11. Nd2 d5 12. e3 Bg4 13. Qc2 Be2 14. Nxe4 Bxf1 15. Nxf6+ Qxf6 16. Kxf1 Rad8 { Nitz,M (2059)-Brzezinski,B ICCF 2012 1/2-1/2 (65)}) (5. g3 Ne7 6. Bg2 c5 7. O-O Nbc6 8. d3 O-O 9. e4 f5 10. Ng5 h6 11. Nf3 f4 12. Bd2 g5 13. Ne1 Bd7 14. Qh5 Kg7 15. h4 g4 16. Nc2 Ng8 {Linden,W (1817)-Johansen,A (2386) ICCF 2017 0-1 (25) }) 5... Nf6 (5... Nc6 6. d4 (6. Be2 Nf6 7. d3 Ne7 8. a4 O-O 9. O-O h6 10. a5 c5 11. Ne1 Ng6 12. f3 Be6 13. Nc2 Nf4 14. Bxf4 exf4 15. Qd2 g5 16. Rfb1 Qc7 17. d4 Rab8 {Sitorus,Y-Hoffman,D (1863) ICCF 2015 1-0 (58)}) 6... Nge7 7. Bd3 O-O 8. O-O Ng6 9. Be3 b6 10. Bc2 Qe7 11. Qe2 Na5 12. Nd2 f5 13. f3 Be6 14. exf5 Bxf5 15. Bxf5 Rxf5 16. Qd3 Qd7 17. Nb3 {Hrzina,B (2165)-Pacic,A (1937) ICCF 2017 1/ 2-1/2 (30)}) (5... c5 6. d4 Nc6 7. d5 Nce7 8. Bd3 Ng6 9. O-O h6 10. Be3 Bg4 11. h3 Bd7 12. a4 N8e7 13. Nd2 O-O 14. Re1 f5 15. exf5 Nxf5 16. Qh5 Nge7 17. a5 { Sitorus,Y (2322)-Grebenshchikov,A (2326) ICCF 2016 1-0 (46)}) 6. d3 O-O (6... Nbd7 7. Bg5 h6 8. Bh4 Nc5 9. Be2 b6 10. O-O O-O 11. Qd2 Ne6 12. Rab1 Nf4 13. Bg3 N6h5 14. d4 c5 {0-1 (14) Iqbal,A-Apostolakis,S ICCF 2013}) 7. Bg5 (7. Be2 Nbd7 8. O-O Nc5 9. Ne1 Ne6 10. f3 Re8 11. Rf2 c6 12. d4 Qa5 13. Bd2 Qc7 14. Be3 h6 15. Bf1 b6 16. a4 c5 17. dxe5 dxe5 18. Rfa2 Rd8 {Hengl,C (2386)-Johansen,A (2320) ICCF 2016 1/2-1/2 (72)}) 7... h6 8. Bh4 Nbd7 9. Be2 Re8 10. O-O Nf8 11. Bxf6 Qxf6 12. Nd2 Ne6 13. Nb3 Nf4 14. Bf3 a6 15. Kh1 b5 {Rice,R (1368)-Fels,B (2199) ICCF 2016 0-1 (30)}) 4... d6 (4... Nc6 5. e4 d6 6. Bd3 (6. Be2 b6 (6... Nge7 7. Qd3 f5 8. O-O O-O 9. Nh4 f4 10. c5 dxc5 11. Qc4+ Kh8 12. Qxc5 Be6 13. Nf3 Qe8 14. b3 Rd8 15. Re1 Qg6 16. Nxe5 Qxe4 17. Ba3 b6 18. Qb5 {Hedreanu,P (1895)-Lafrana,A (1989) ICCF 2007 1-0 (38)}) 7. O-O a5 8. Ne1 Nf6 9. Nc2 Ne7 10. Bd3 Bb7 11. f3 h5 12. Ne3 Nd7 13. Nd5 Ng6 14. Bc2 Bc6 15. Be3 Bb7 16. Bf2 h4 17. Qd2 Ngf8 {Belchev,B (2210)-Franzén,T (2292) ICCF 2018 0-1 (40)}) 6... Nge7 7. O-O (7. Nh4 O-O 8. Be3 b6 9. O-O a5 10. Nf5 f6 11. Qg4 Nxf5 12. exf5 Qd7 13. Be4 Rb8 14. f4 Bb7 15. Bd5+ Kh8 16. Rae1 Rbe8 17. Be6 Qe7 18. Qd1 Rb8 { Belchev,B (2311)-Monov,A (2226) ICCF 2017 1-0 (68)}) 7... Ng6 (7... O-O 8. h3 Ng6 9. b4 h6 10. Be3 Qf6 11. Re1 Nf4 12. Bf1 b6 13. a4 a6 14. Nh2 Qg6 15. Bxf4 exf4 16. Qf3 Re8 17. h4 Bb7 18. Qxf4 a5 19. b5 {Rijk,J (2148)-Kokorin,V (2254) ICCF 2011 1/2-1/2 (41)}) 8. Bg5 Qd7 9. Qd2 O-O 10. Be3 b6 11. b3 Bb7 12. Ne1 Nce7 13. Nc2 f5 14. f3 a5 15. exf5 Nxf5 16. Be4 {Belchev,B (2210)-Lundberg,C (2303) ICCF 2018 1/2-1/2 (31)}) 5. e4 (5. c5 Nc6 (5... Nf6 6. cxd6 cxd6 7. b3 O-O 8. e3 Nc6 9. Bb2 Qb6 10. Be2 Rd8 11. Qc2 a5 12. O-O Bg4 13. h3 Bh5 14. Rfd1 a4 15. bxa4 Bg6 16. Qb3 Qxb3 17. axb3 {Belchev,B (2299)-Malchev,E (2396) ICCF 2016 0-1 (92)}) 6. e4 Nf6 7. Qa4 O-O 8. Bb5 d5 9. Bg5 dxe4 10. Bxc6 bxc6 11. Nxe5 Qe7 12. Nxc6 Qxc5 13. Bxf6 gxf6 14. O-O-O Bb7 15. Na5 Ba6 16. Nb3 Qg5+ { Belchev,B (2361)-Manole,G (2389) ICCF 2008 1/2-1/2 (53)}) (5. g3 Nd7 (5... e4 6. Nd4 h6 7. Bg2 Nf6 8. O-O O-O 9. h3 Re8 10. Be3 a5 11. Qd2 a4 12. b4 Nbd7 13. Nb5 Ne5 14. Na3 Be6 15. Qd4 Qd7 16. Kh2 b6 17. c5 {Harman,K (1650)-Zordick,M ICCF 2016 0-1 (38)}) 6. Bg2 h6 7. O-O Ngf6 8. b3 O-O 9. h3 a5 10. Qc2 Re8 11. Nh4 a4 12. Be3 e4 13. Rad1 Ne5 14. Bxe4 axb3 15. axb3 Nxc4 16. bxc4 Nxe4 { Linden,W (1707)-Salmon,G ICCF 2019 0-1 (28)}) (5. Bg5 f6 6. Be3 Be6 7. b3 Ne7 8. Qc2 O-O 9. O-O-O b5 10. Nh4 bxc4 11. Kb2 cxb3 12. axb3 Nbc6 13. Ra1 Qd7 14. Ra4 Rfb8 15. Bd2 Bxb3 16. Qb1 Bxa4+ {Fraser,V-Moujan,P (2010) ICCF 2019 0-1}) 5... Nf6 6. Bd3 Nbd7 (6... O-O 7. O-O b6 (7... Nbd7 8. Be3 b6 9. b4 a5 10. Qc2 h6 11. a3 Bb7 12. c5 bxc5 13. Nd2 axb4 14. cxb4 Ng4 15. Nc4 Nxe3 16. Nxe3 Ra7 17. Ra2 Qa8 18. Rfa1 Rb8 19. h3 {Sifré Calafat,F (2051)-Huntley,T (2039) ICCF 2016 0-1 (37)}) 8. Re1 a5 9. Bd2 Nbd7 10. b4 Bb7 11. a3 Re8 12. Nh4 g6 13. Qf3 Nh5 14. g3 Nf4 {Verdugo Barba,O (1710)-Castro,B (1665) ICCF 2020}) 7. b4 (7. h3 Nc5 8. b4 Nxd3+ 9. Qxd3 h6 10. O-O O-O 11. Re1 Re8 12. a4 a5 13. Ra2 Be6 14. Ra1 Qd7 15. b5 Rad8 16. Be3 b6 17. Nh4 g5 18. Nf3 Nh5 {Przyborowski,A (1775) -Culbert,J ICCF 2016 0-1 (38)}) 7... a5 (7... b6 8. O-O O-O 9. Nh4 a5 10. Nf5 Re8 11. a4 Nf8 12. f3 Bxf5 13. exf5 e4 14. Bc2 exf3 15. Rxf3 N8d7 16. Bf4 Ne5 17. Rg3 Kf8 18. Qe2 axb4 19. cxb4 {Pradeilles,G-Newton,A (1773) ICCF 2018 0-1 (32)}) (7... Nf8 8. h3 Ne6 9. Be3 b6 10. Ng5 Qd7 11. O-O O-O 12. Nxe6 Qxe6 13. a4 a5 14. Re1 Ba6 15. Qe2 Rfd8 16. f3 h6 17. Kh2 Bb7 18. Rg1 Nh5 19. g3 { Brower,W-Moore,R (1956) ICCF 2013 1/2-1/2 (41)}) 8. O-O O-O 9. Be3 Re8 10. Qc2 axb4 11. cxb4 c5 12. b5 Nf8 13. a4 Ne6 14. Bd2 Nd4 {Willers,F-Maylott,P (2049) ICCF 2018 0-1 (25)}) (3. Qb3 Nc6 (3... a5 4. a3 Bxc3 5. Qxc3 d6 6. g3 Nf6 7. Bg2 O-O 8. d3 Re8 9. e4 c5 10. Nf3 Nc6 11. O-O h6 12. h3 Be6 13. Nh2 b5 14. b3 Nd4 15. Qb2 {Azzi,R (1510)-Moujan,P (1915) ICCF 2019 0-1 (27)}) (3... Ba5 4. Nf3 Nc6 5. e3 Nf6 6. Be2 O-O 7. O-O e4 8. Nd4 Nxd4 9. exd4 d5 10. Nxd5 Nxd5 11. cxd5 c6 12. dxc6 bxc6 13. Qe3 Re8 14. d3 exd3 15. Qxd3 {MacMillen,A (1915) -Moir,P ICCF 2009 1-0 (50)}) (3... Bxc3 4. Qxc3 d6 5. g3 Nf6 6. Bg2 c6 7. e3 O-O 8. Ne2 Nbd7 9. O-O Nc5 10. d4 Nce4 11. Qd3 Ng5 12. Rd1 a6 13. dxe5 dxe5 14. Qxd8 Be6 15. Qb6 {Woodruff,D (1787)-Gosling,D (1467) ICCF 2015 1-0 (41)}) 4. e3 (4. Nf3 d6 5. e3 Bxc3 (5... Nf6 6. Be2 O-O 7. O-O Bxc3 8. Qxc3 Ne4 9. Qc2 Bf5 10. Qd1 a5 11. d3 Nf6 12. h3 a4 13. e4 Bg6 14. Be3 Nd7 15. Qd2 Nc5 16. Rae1 h6 17. g3 {Hendri Sevano,R (1769)-Metsemakers,P ICCF 2017 1/2-1/2 (42)}) 6. Qxc3 Nf6 7. b4 O-O 8. Bb2 a6 9. Be2 Re8 10. O-O Ne4 11. Qc2 Bf5 12. d3 Nxb4 13. Qb3 Nxd3 14. Qxd3 Ng3 15. Qd1 Nxf1 {Ilyasov,A (2341)-Kokorin,V (2161) ICCF 2015 1-0 (67)}) (4. Nd5 a5 5. a3 Bc5 6. Nf3 d6 7. e4 Bd7 8. Qc3 Nge7 9. b4 axb4 10. axb4 Rxa1 11. Qxa1 Nxb4 12. Nxb4 Bxb4 13. Qb2 Nc6 14. Be2 Qa8 15. O-O O-O { Bray,P (1519)-Ricketts,M (2011) ICCF 2020 0-1 (56)}) 4... Nf6 (4... d6 5. a3 Bxc3 6. Qxc3 Nf6 7. b4 O-O 8. Bb2 Re8 9. Qc2 Be6 10. Rc1 a5 11. b5 Ne7 12. Nf3 Bf5 13. Qd1 Nd7 14. Be2 Ng6 15. O-O Qe7 16. Re1 {Garau,B (2362)-Zeihen,P (2285) ICCF 2017 1/2-1/2 (25)}) 5. Nge2 (5. a3 Bxc3 6. Qxc3 O-O 7. b4 (7. g3 d5 8. Bg2 dxc4 9. Qxc4 Be6 10. Qc3 Qd6 11. Ne2 Bd5 12. O-O Bxg2 13. Kxg2 e4 14. b4 Nd5 15. Qc2 Qf6 16. Nc3 Qf3+ 17. Kg1 Nxc3 18. Qxc3 Rfe8 {Woodruff,D (1787)-Bruce,R (1834) ICCF 2014 0-1 (27)}) (7. Bd3) 7... Re8 8. Qc2 d5 9. cxd5 Qxd5 10. Bb2 Nd4 11. exd4 exd4+ 12. Kd1 c5 13. Nf3 Bg4 14. Bc4 Bxf3+ 15. Kc1 Be4 16. Bxd5 Bxc2 {Scott,P (1848)-David-Bordier,C (2317) ICCF 2016 1/2-1/2 (27)}) 5... O-O 6. a3 Ba5 (6... Bxc3 7. Nxc3 Re8 8. Be2 d6 9. d3 Ne7 10. O-O c6 11. Ne4 Ng6 12. Bd2 b6 13. Rad1 Bb7 14. Bc3 c5 15. Qc2 Qe7 16. f3 Rad8 17. Rf2 d5 18. Nxf6+ { Barroqueiro,S-Wadle,M (2036) ICCF 2021 1/2-1/2 (33)}) 7. Qc2 d6 8. b4 Bb6 9. Ng3 Ng4 10. h3 Nh6 11. Be2 f5 12. c5 dxc5 13. Na4 cxb4 14. axb4 Nxb4 { Kratochvíl,J (2273)-Chlubna,J (1776) ICCF 2017 1-0 (52)}) (3. a3 Bxc3 (3... Bc5 4. Nf3 c6 5. b4 Bb6 6. Bb2 d6 7. e3 Bg4 8. Be2 Nf6 9. O-O O-O 10. d4 Nbd7 11. c5 dxc5 12. dxc5 Bc7 13. Qc2 b5 14. Rad1 Qb8 15. e4 {McLaughlin,E (1650) -Cangelosi,D (1845) ICCF 2016 1-0 (31)}) 4. dxc3 (4. bxc3 Nf6 (4... Nc6 5. d4 Nf6 6. d5 Na5 7. e3 O-O 8. Nf3 d6 9. Be2 Ne4 10. Qc2 Bf5 11. Bd3 Nb3 12. Rb1 Nbc5 13. Nh4 Nxd3+ 14. Qxd3 Qxh4 15. O-O Bg6 16. g3 {Tanner,A (1675)-Bruce,R (1960) ICCF 2017 0-1}) (4... d6 5. d3 Nd7 6. Nf3 c6 7. e4 Nc5 8. Be2 Ne7 9. O-O O-O 10. Be3 Ng6 11. Qc2 f5 12. exf5 Bxf5 13. Bxc5 dxc5 14. Rfe1 Nf4 15. Nxe5 Nxg2 16. Kxg2 {Rasmussen,J (2122)-Rasmussen,E (2344) ICCF 2007 0-1 (43)}) 5. Bb2 (5. d4 e4 6. Bg5 h6 7. Bxf6 Qxf6 8. e3 O-O 9. Qc2 Re8 10. Ne2 d6 11. Ng3 Qg6 12. Qd2 c6 13. Be2 c5 14. f3 exf3 15. Bxf3 Nc6 16. O-O Qg5 {Tanner,A (1646) -Conway,J ICCF 2019 1/2-1/2 (28)}) 5... O-O 6. g3 Nc6 7. d3 d6 8. Bg2 Re8 9. e3 Bd7 10. Ne2 h6 11. O-O Ng4 12. Qc2 f5 13. Rfc1 f4 14. f3 Nxe3 15. Qb3 Nxg2 { Laba,M-Jacobsen,O (1981) ICCF 2006 0-1}) 4... d6 (4... Nf6 5. e4 Nxe4 6. Qd5 Nd6 7. Qxe5+ Kf8 8. Qf4 Nc6 9. Be3 b6 10. Nf3 Ne7 11. Bd3 Bb7 12. O-O-O Ng6 13. Qg4 h5 14. Qh3 Bxf3 15. Qxf3 Kg8 16. Rhe1 {Hämmerle,D (2046)-Bruno,G (1722) ICCF 2020 1-0 (28)}) 5. e4 Be6 (5... f5 6. Bd3 Nf6 7. Bg5 h6 8. Bxf6 Qxf6 9. Nf3 Nd7 10. b4 f4 11. h3 O-O 12. O-O b6 13. Qa4 a5 14. c5 bxc5 15. bxa5 Kh7 16. Qc6 Ra7 17. Rfb1 {Jaeger,F (2151)-Franzén,T (2276) ICCF 2006 0-1 (31)}) (5... Nf6 6. Bd3 O-O 7. Bg5 Nbd7 8. Nf3 Nc5 9. Bc2 h6 10. b4 Ne6 11. Bh4 Nf4 12. O-O Bg4 13. h3 Bh5 14. Kh2 g5 15. Bg3 g4 16. hxg4 Nxg4+ 17. Kg1 {McLaughlin,E (1436)-Moujan,P (1836) ICCF 2018 0-1 (36)}) 6. Bd3 (6. Nf3 h6 7. Be2 Nf6 8. Bd3 O-O 9. O-O a5 {0-1 (9) Grigoryan,D-Nitschke,N (1968) ICCF 2018}) 6... Nd7 7. b4 h6 8. Nf3 Ne7 9. Nh4 O-O 10. O-O Ng6 11. Nf5 Nf4 12. Re1 Nxd3 13. Qxd3 Kh7 14. Ne3 Nb6 {Belchev,B (2210)-Grebenshchikov,A (2272) ICCF 2018 0-1 (65)}) (3. d3 Bxc3+ (3... Nc6 4. Bd2 Nf6 5. g3 d5 6. b3 d4 7. Ne4 Nxe4 8. dxe4 Qe7 9. Bg2 O-O 10. Nf3 a5 11. O-O a4 12. Bxb4 Qxb4 13. bxa4 Rxa4 14. Nd2 b6 15. Qb3 {Pope,P (1856)-Bailey,S (2115) ICCF 2019 0-1 (57)}) 4. bxc3 d6 5. e4 Ne7 6. Nf3 c5 7. g3 Nbc6 8. Bg2 Qa5 9. Bd2 Bd7 10. O-O O-O 11. Qe2 Qc7 12. Nh4 Be6 13. f4 f5 14. exf5 Nxf5 {Chapin,C (2122)-Murray,B ICCF 2008 0-1 (47)}) (3. e4 d6 4. Nd5 (4. Nge2 Nc6 5. d4 exd4 6. Nxd4 Nf6 7. Nxc6 bxc6 8. Bd3 O-O 9. O-O Re8 10. Qc2 Bc5 11. Bf4 h6 12. Rae1 Ng4 13. Bg3 Rb8 14. h3 Ne5 15. Be2 Bd4 {Ghazarian, K-Groenendijk,P (2129) ICCF 2020 0-1 (35)}) 4... Bc5 5. b4 Bd4 6. Rb1 c6 7. Ne3 Qh4 8. Nf3 Qxe4 9. d3 Bc3+ 10. Bd2 Bxd2+ 11. Qxd2 Qg6 12. g3 Be6 13. Bg2 Ne7 14. b5 Nf5 {Garcia Varela,J-Setya Adhi,B ICCF 2017 0-1 (59)}) (3. e3 Bxc3 (3... Be7 4. Nf3 Nc6 5. a3 Nf6 6. d3 O-O 7. Be2 d6 8. h3 Be6 9. O-O a5 10. b3 Qd7 11. Kh2 d5 12. Qc2 h6 13. Bb2 d4 14. Nd1 e4 15. Ng1 {Jakobi,W (1582)-Davis,J (1240) ICCF 2019 1-0 (27)}) 4. bxc3 d6 5. d4 Nc6 6. d5 Nce7 7. e4 f5 8. f3 Nf6 9. Bg5 O-O 10. Bxf6 Rxf6 11. Qd3 b6 12. Nh3 h6 13. g3 Qf8 14. Bg2 fxe4 {Enoksson,B (1531)-Dumont,G (1733) ICCF 2017 0-1}) (3. Nb5 c6 4. Qb3 Bc5 5. Nc3 Qh4 6. e3 Nf6 7. Nf3 Qg4 8. Nxe5 Qh4 9. d4 Bd6 10. Nxf7 Kxf7 11. c5+ Ke8 12. cxd6 Ng4 13. Qc2 Qf6 14. Qe4+ Qe6 {Arnold,E-Lansford,M (1566) ICCF 2013 1-0 (26)}) (3. d4 exd4 4. Qxd4 Nf6 5. Bg5 Nc6 6. Qe3+ Qe7 7. Qxe7+ Nxe7 8. Bxf6 gxf6 9. Rc1 d5 10. a3 Bxc3+ 11. Rxc3 Be6 12. e3 Rg8 13. g3 O-O-O 14. Nf3 Nc6 {Abarca Silva,M (2020)-Dutra,A (2351) ICCF 2008 1/2-1/2 (39)}) 3... Bc5 (3... Ba5 4. b4 c6 5. bxa5 cxd5 6. cxd5 Nf6 (6... Qxa5 7. Qb3 (7. e4 Nf6 (7... d6 8. a4 Nf6 9. Qc2 O-O 10. Ba3 Rd8 11. Ne2 Na6 12. f3 Nc5 13. Bxc5 dxc5 14. Nc1 Qc7 15. Bc4 Re8 16. O-O Bd7 17. Nd3 b6 {1/2-1/2 (17) Siefring,C (2500)-Motta,P (2392) ICCF 2014 }) 8. f3 d6 (8... O-O 9. Bb2 d6 10. Ne2 b5 11. a4 b4 12. d4 Nbd7 13. Ng3 g6 14. Bb5 Rb8 15. O-O Ba6 16. dxe5 dxe5 17. f4 Bxb5 18. axb5 Qb6+ 19. Kh1 Nc5 20. fxe5 {Heilmann,U (1757)-Kokorin,V (2188) ICCF 2013 1-0 (51)}) 9. Ne2 O-O 10. Kf2 Nfd7 11. d4 f5 12. Bd2 Qa3 13. exf5 Nf6 14. dxe5 dxe5 15. g4 e4 16. Qb3 Qxb3 17. axb3 exf3 18. Kxf3 Nbd7 {Portych,V (2212)-Nicholls,M (2060) ICCF 2013 1/2-1/2 (69)}) 7... Nf6 8. Nf3 d6 9. Ba3 Ne4 (9... Qxd5 10. Qxd5 Nxd5 11. Bxd6 e4 12. Nd4 Bd7 13. e3 Nc6 14. Nxc6 Bxc6 15. Rb1 O-O-O 16. Bg3 Ne7 17. h4 a6 18. h5 b5 19. Be5 Rhg8 20. a3 Kd7 21. Be2 {Vayser,V (2518)-Carrettoni,A (2345) ICCF 2003 1/2-1/2 (52)}) 10. e3 Nd7 11. Bb4 (11. Bb5 O-O 12. O-O Nb6 13. d3 Nc3 14. Bc4 Nxc4 15. Bb4 Qa6 16. Qxc3 Nb6 17. Bxd6 Nxd5 18. Qxe5 Rd8 19. Bc7 f6 20. Qd4 Rd7 21. Bg3 Ne7 22. Qc4+ Qxc4 {Kratochvíl,J (2233)-Kokorin,V (2231) ICCF 2011 1/2-1/2 (92)}) 11... Qc7 12. Be2 O-O 13. O-O b6 14. Rac1 Qd8 15. Qc2 Ndf6 16. d4 exd4 17. Nxd4 Nc5 18. Rfd1 {Thew,B (2083)-Kokorin,V (2177) ICCF 2013 1-0 (59)}) 7. Qa4 O-O 8. e4 d6 9. Ba3 Na6 (9... Ne8 10. Bb5 Nd7 11. Ne2 Ndf6 12. d3 a6 13. Bc4 Bd7 14. Qb4 Bb5 15. Rc1 Nd7 16. Ng3 g6 17. O-O b6 18. axb6 Nxb6 19. Bxb5 axb5 20. Rc6 f5 21. exf5 {Chatel,M (1604)-Lungu,I ICCF 2017 1/ 2-1/2 (37)}) 10. Bxa6 bxa6 11. Ne2 (11. Qb4 Ne8 12. Nf3 f5 13. Nxe5 Qg5 14. O-O fxe4 15. Nc4 Bh3 16. Ne3 Rf3 17. Qxe4 Rf4 18. Qd3 Rf3 19. g3 Bxf1 20. Rxf1 Rb8 21. Qxa6 Rf7 22. f4 Qe7 {Rulfs,E (2083)-Simanowski,A (2069) ICCF 2011 1/2-1/2 (28)}) 11... Rb8 12. O-O Bd7 13. Qc2 Ne8 14. Rfb1 Rxb1+ (14... Rc8 15. Qb2 f5 16. d4 exd4 17. e5 Qxa5 18. Nxd4 Qxd5 19. Nf3 Ba4 20. Rc1 Rxc1+ 21. Rxc1 Rf7 22. exd6 Rf6 23. Qe5 Qxa2 24. Ra1 Qb3 25. Qd4 Bd7 26. Ne5 {Postl,R (2240) -Rocco Ruiz,J (2249) ICCF 2008 1-0 (42)}) 15. Rxb1 {Deneuville,C (2206) -Kokorin,V (2179) ICCF 2014 1-0 (47)}) (3... Be7 4. Nf3 (4. d4 exd4 (4... Nf6 5. dxe5 Nxd5 6. cxd5 d6 7. exd6 Bxd6 8. Nf3 O-O 9. Bg5 Be7 10. Bxe7 Qxe7 11. e3 Bg4 12. Be2 c6 13. d6 Qf6 14. Qd4 Qxd4 15. Nxd4 Bxe2 16. Kxe2 {Sivic,J-Tkalec, E ICCF 2005 1-0}) (4... d6 5. e4 (5. Nf3 e4 (5... Nf6 6. Nxe7 (6. dxe5 dxe5 7. Nxe5 O-O 8. Nc3 Qxd1+ 9. Nxd1 Be6 10. Ne3 Rd8 11. Nd3 Nc6 12. f3 Nd4 13. Kf2 b5 14. cxb5 a6 15. bxa6 Rxa6 16. Bd2 Nb3 17. Rd1 Nxd2 {Vaughan,J (2039)-Ozols,A (2005) ICCF 2016 1/2-1/2 (53)}) 6... Qxe7 7. Bg5 h6 8. Bh4 Bg4 9. h3 Bxf3 10. gxf3 Nbd7 11. e3 O-O-O 12. Be2 Kb8 13. Qd2 g5 14. Bg3 exd4 15. Qxd4 Nh5 16. O-O-O f5 17. f4 {Harman,K (1650)-Whitted,D (1871) ICCF 2016 0-1 (48)}) (5... c6 6. Nc3 Nd7 7. Qc2 Ngf6 8. e3 O-O 9. Bd3 Re8 10. O-O Bf8 11. b3 g6 12. Bb2 Qe7 13. Be2 b6 14. Rad1 Bb7 15. dxe5 {1/2-1/2 (15) Goncharov,O (2335)-Korzh,L (2271) ICCF 2012}) 6. Nd2 f5 (6... c6 7. Nxe7 Qxe7 8. Nb1 Nf6 9. Nc3 h6 10. Bf4 Nh5 11. Be3 f5 12. g3 O-O 13. Bg2 Nd7 14. Qb3 Ndf6 15. Rd1 g5 16. Rg1 f4 { 0-1 (16) Herzog,K (1972)-Nett,P (1916) ICCF 2020}) 7. Nb1 (7. Nxe7 Qxe7 8. e3 Nf6 9. b4 (9. d5 O-O 10. Be2 Nbd7 11. O-O Ne5 12. Nb3 Bd7 13. Nd4 Nfg4 14. h3 Nf6 15. Qc2 g5 16. Kh1 g4 17. Bd2 Qg7 18. c5 gxh3 19. gxh3 Qh6 20. Rg1+ Kf7 { Urpilainen,E (2153)-Groot,P (2165) ICCF 2017 0-1 (42)}) 9... O-O 10. Be2 f4 11. O-O f3 12. gxf3 Bh3 13. Re1 Nd5 14. Bf1 Bxf1 15. Rxf1 exf3 16. Kh1 Nc3 17. Qc2 Ne2 18. Qe4 Qxe4 {Olsinskas,D (1599)-Wyngaarden,M ICCF 2021 0-1 (45)}) 7... Nf6 8. Nbc3 O-O 9. Nxe7+ Qxe7 10. Bg5 Be6 11. e3 Qf7 (11... h6 12. Bf4 Rd8 13. Be2 Bf7 14. h3 c5 15. d5 Nbd7 16. g4 g5 17. Bg3 fxg4 18. Bxg4 a6 19. h4 Ne5 20. Bxe5 Qxe5 21. hxg5 hxg5 22. Be2 Rdb8 23. a4 {Orlovtsev,A (2255)-Grebenshchikov, A (2303) ICCF 2017 1/2-1/2 (31)}) 12. Qb3 (12. d5 Bc8 13. Qd4 a5 14. c5 dxc5 15. Qxc5 b6 16. Qd4 Ba6 17. f3 c5 18. Qd2 exf3 19. gxf3 Bxf1 20. Rxf1 h6 21. Bxf6 Qxf6 22. O-O-O Nd7 23. d6 Qe6 {Magat,G (2187)-Horwitz,D (2333) ICCF 2014 1/2-1/2 (64)}) 12... a5 13. Bxf6 Qxf6 14. Be2 b6 15. O-O Nd7 16. f3 Qh6 { Zarnescu,M (2438)-Kasyan,A (2355) ICCF 2014 1/2-1/2 (36)} 17. Nb5 Rac8 18. fxe4 fxe4 19. Rxf8+ Nxf8 20. Re1 Qg5 21. Bd1 Nd7 22. Rf1 h6 23. Rf4 Qe7 24. Nc3 g5 25. Rf2 Nf6 26. a3 Kg7 27. Be2 Bd7 28. Qd1 Rf8 {Ludgate,A (2500)-Poljak,D (2439) ICCF 2016 1/2-1/2 (33)}) (5. e3 Nf6 (5... exd4 6. exd4 Nf6 7. Nxe7 Qxe7+ 8. Be2 O-O 9. Nf3 Re8 10. Be3 Bf5 11. Rc1 d5 12. O-O dxc4 13. Bxc4 Nbd7 14. Re1 Nb6 15. Bb3 Bg4 16. h3 Bxf3 17. Qxf3 {Niese,P (2285)-Vliet,E (2085) ICCF 2018 1/2-1/2 (40)}) 6. Nxe7 (6. Qa4+ c6 7. Nxf6+ Bxf6 8. d5 O-O 9. Bd3 Na6 10. Qc2 g6 11. e4 Nb4 12. Qb3 Nxd3+ 13. Qxd3 Bg7 14. Ne2 cxd5 15. cxd5 f5 16. Qa3 f4 17. Bd2 Rf7 {Müller-Töpler,M (1856)-Peraza Ballesté,O (1957) ICCF 2020 0-1 (30) }) 6... Qxe7 7. Ne2 (7. d5 Nbd7 8. Ne2 e4 9. b3 Ne5 10. Ng3 h5 11. Qc2 Kf8 12. h4 Rh6 13. Bb2 Bg4 14. Rc1 Rd8 15. b4 Re8 16. a4 Rg6 17. Bd4 c6 18. b5 c5 { Deneuville,C (2201)-Armani,G (2343) ICCF 2017 1/2-1/2 (39)}) 7... O-O (7... Bf5 8. Ng3 (8. f3 Bg6 9. e4 exd4 10. Nxd4 c6 11. Be2 d5 12. cxd5 cxd5 13. exd5 O-O 14. Nb5 Rd8 15. d6 Qe5 {Lobser,G-Benages Mabres,V (2072) ICCF 2021}) 8... Bg6 9. Be2 h5 10. Qb3 c5 11. Qb5+ Kf8 12. dxe5 dxe5 13. h4 Kg8 14. Bd2 Nc6 15. O-O-O Kh7 16. f3 a6 17. Qb6 Rhc8 18. Ba5 Rab8 19. Bd2 {Fillion,S (2111) -Millstone,M (2433) ICCF 2015 0-1 (30)}) (7... exd4 8. Nxd4 O-O 9. Be2 Rd8 10. Qc2 (10. O-O c5 11. Nb5 d5 12. cxd5 Nxd5 13. Qc2 Nb4 14. Qb1 Be6 15. a3 N4c6 16. Qc2 a6 17. Nc3 Na5 18. Bd2 Nbc6 19. Be1 b5 20. f4 Rac8 21. Bf2 Bb3 { Sifré Calafat,F (2063)-Benages Mabres,V (2072) ICCF 2021 1/2-1/2 (49)}) 10... d5 11. b3 Na6 12. a3 dxc4 13. Qxc4 Qe5 14. Ra2 c5 15. Nf3 Qf5 16. O-O Be6 17. Qc3 h6 18. Bb2 Nc7 19. Raa1 {Morley,P (2315)-Poljak,D (2422) ICCF 2011 1/2-1/2 (32)}) 8. d5 Nbd7 9. Ng3 e4 10. b3 Ne5 (10... Qe5 11. Qd4 Qxd4 12. exd4 b5 13. Bd2 bxc4 14. bxc4 Ba6 15. Nf5 g6 16. Ne7+ Kg7 17. Be2 Rfb8 18. Nc6 Rb2 19. Nb4 e3 20. fxe3 Bxc4 21. Bxc4 Ne4 22. O-O-O {Morley,P (2384)-Murden,C (2435) ICCF 2014 1/2-1/2 (53)}) 11. h3 a5 12. Bb2 a4 13. Qd4 Nfd7 14. b4 a3 15. Bc3 f5 16. Be2 Nb6 {Geider,F (2486)-Murden,C (2437) ICCF 2014 1/2-1/2 (35)}) 5... Nf6 ( 5... c6 6. Nxe7 (6. Nc3 Nf6 7. Nf3 Nbd7 8. Be2 O-O 9. O-O Re8 10. Qc2 Qc7 11. h3 a6 12. Be3 b5 13. cxb5 cxb5 14. Rfc1 Bb7 15. Qb3 exd4 16. Ng5 d5 17. Nxb5 Qb6 {Bucsa,I (2270)-Hristodorescu,D ICCF 2009 1-0 (38)}) 6... Qxe7 (6... Nxe7 7. dxe5 dxe5 8. Qxd8+ Kxd8 9. Ne2 Kc7 10. Nc3 Na6 11. Bg5 f6 12. Be3 Rd8 13. f4 Nb4 14. Rc1 Nd3+ 15. Bxd3 Rxd3 16. Ke2 Rd8 17. f5 Bd7 18. Bc5 {Smerda,R (2237) -Binas,J (2192) ICCF 2012 1-0 (27)}) 7. Ne2 Nf6 8. Nc3 O-O 9. Be2 (9. d5 Na6 10. f3 Ne8 11. Be2 f5 12. O-O f4 13. Bd2 c5 14. Kh1 Bd7 15. a3 b6 16. Qe1 Nf6 17. Qf2 Nh5 18. Nb5 Rf6 19. Kg1 Rg6 20. Rfc1 Qd8 {Pheby,I (2189)-Vegjeleki,A (2224) ICCF 2010 1/2-1/2 (26)}) 9... Re8 (9... Nbd7 10. O-O Re8 11. d5 Nc5 12. f3 a5 13. Be3 cxd5 14. cxd5 b6 15. Rc1 h6 16. b3 Qa7 17. Bb5 Bd7 18. Bc4 Nh5 19. a3 Nf4 20. Re1 f5 21. b4 {Miciak,E (2343)-Legemaat,G (2390) ICCF 2008 1-0 (44)}) (9... exd4 10. Qxd4 c5 11. Qd3 Nc6 12. O-O Nb4 13. Qb1 Re8 14. Bg5 Qe5 15. Bxf6 Qxf6 16. Nb5 Re7 17. Rd1 Nc6 18. Rxd6 Be6 19. Qc1 a6 20. Nc3 Qe5 21. Rd1 {Casella,S (2012)-Brusiani,A (1894) ICCF 2011 1/2-1/2 (58)}) 10. d5 (10. f3 Nbd7 11. O-O Nf8 12. Be3 Ne6 13. d5 Nf4 14. Qd2 Nxe2+ 15. Nxe2 c5 16. b4 b6 17. a4 Ba6 18. b5 Bc8 19. a5 Rb8 20. Ng3 h6 21. axb6 axb6 {Dearnley,A (2370) -Pellisseri,M (2425) ICCF 2008 1-0 (37)}) 10... Nbd7 11. Be3 cxd5 12. cxd5 b6 13. f3 Bb7 14. O-O Rec8 15. Rc1 h6 16. Qd2 a6 17. b4 {Nagel,H (2222)-Vegjeleki, A (2274) ICCF 2011 1-0 (27)}) (5... exd4 6. Qxd4 Nf6 7. Nf3 O-O 8. Bd3 Nc6 ( 8... Nxd5 9. cxd5 Bg4 10. Qe3 Re8 11. O-O c6 12. Qf4 Bh5 13. Be3 a6 14. Rfe1 Bf6 15. Bd4 Bxf3 16. Bxf6 Qxf6 17. Qxf6 gxf6 18. gxf3 cxd5 19. exd5 Nd7 20. Rac1 {Darmanto,H (2198)-Ruokokoski,H (2207) ICCF 2017 1/2-1/2 (33)}) 9. Qe3 Ng4 10. Qe2 Nge5 11. h3 Nxf3+ 12. Qxf3 Bh4 13. O-O Ne5 14. Qe2 f5 15. Bc2 c6 16. Nf4 Qe7 17. b3 {Eldridge,M (2389)-Ewan,R (2251) ICCF 2013 1/2-1/2 (29)}) (5... Nc6 6. Ne2 Nf6 (6... exd4 7. Nxd4 Nf6 8. Nxc6 bxc6 9. Nc3 O-O 10. Be2 Nd7 11. O-O Nc5 12. Be3 Bf6 13. Qc2 Qe7 14. f3 Rb8 15. Bxc5 dxc5 16. Rad1 Bd4+ 17. Kh1 f5 18. exf5 {Vecek,M (2292)-Atuán,J (2132) ICCF 2012 1-0 (62)}) 7. Nxe7 Nxe7 ( 7... Qxe7 8. d5 Nb8 9. Nc3 O-O 10. f3 Nfd7 11. a3 a5 12. Be2 f5 13. exf5 Rxf5 14. O-O Rf7 15. Be3 Nf6 16. Qc2 Na6 17. Bd3 g6 18. b4 Nh5 19. Qd2 {Portych,V (2212)-Sorokin,M ICCF 2013 1-0 (38)}) 8. dxe5 (8. f3 O-O 9. Be3 Nd7 10. Qc2 f5 11. O-O-O fxe4 12. fxe4 Qe8 13. h3 Qg6 14. g4 Nc6 15. Bg2 exd4 16. Nxd4 Nxd4 17. Bxd4 Ne5 18. Kb1 Be6 19. c5 Rf7 {Price,D (2074)-Hjorth,J (1960) ICCF 2012 1/2-1/2 (29)}) 8... Nxe4 9. exd6 Be6 10. c5 Nc6 11. Qc2 Bf5 12. g4 Nxf2 13. Qxf5 Nxh1 14. Bg5 Qc8 15. Rd1 Qxf5 16. gxf5 f6 17. Be3 {Cronjé,H (2124) -Barnett,F ICCF 2006 1-0}) 6. Nxe7 (6. Nf3 Nxe4 7. Bd3 Nf6 8. O-O Nc6 (8... Nxd5 9. cxd5 exd4 10. Nxd4 Nd7 11. Nf5 Bf6 12. Re1+ Kf8 13. Ng3 h5 14. Ne4 Be7 15. h3 Nb6 16. Be2 h4 17. Bf4 Bf5 18. Bf3 Rc8 19. b4 Kg8 20. a4 {Dimitrov,M (2421)-Garau,B (2342) ICCF 2015 1-0 (69)}) 9. Re1 Bg4 10. dxe5 Nxd5 11. cxd5 Nxe5 12. Qa4+ Bd7 13. Qd4 Nxf3+ 14. gxf3 Kf8 15. Qb4 b6 16. Be3 a5 17. Qd2 h5 { Lukesova,M (2402)-Brewer,S (2274) ICCF 2010 0-1 (54)}) (6. Ne2 Nxe4 7. g3 c6 8. Nxe7 Qa5+ 9. Nc3 Nxc3 10. bxc3 Kxe7 11. Qd2 Re8 12. Bg2 Nd7 13. O-O Kf8 14. Re1 Nb6 15. c5 dxc5 16. dxe5 Bf5 17. Qb2 Rad8 {Kusnierz,J (2043)-Abramov,S (2437) ICCF 2017 0-1 (41)}) 6... Qxe7 7. f3 exd4 (7... Nh5 8. Be3 (8. Ne2 exd4 9. g4 Qh4+ 10. Kd2 Nf6 11. Nxd4 Nc6 12. Nxc6 bxc6 13. Qe1 Qxe1+ 14. Kxe1 c5 15. Bd2 { 1/2-1/2 (15) Jones,B (2167)-McKenzie,C (2296) ICCF 2013}) (8. g3 O-O 9. d5 Na6 10. Be3 c5 11. a3 Nc7 12. Bd3 Bd7 13. Ne2 a6 14. O-O Nf6 15. Kg2 Qd8 16. Rh1 Qc8 17. h4 Nce8 18. b4 cxb4 19. axb4 Nc7 {Smith,D-Nurmi,R (1651) ICCF 2013 1/ 2-1/2 (28)}) 8... O-O 9. Ne2 exd4 10. Qxd4 f5 11. Nc3 Nc6 12. Qd2 fxe4 13. Nd5 Qh4+ 14. Bf2 Qd8 15. fxe4 Ne5 16. Be2 Bg4 17. O-O c6 18. Bd4 cxd5 19. Bxe5 { Agostini,V (2146)-Kaufmann,M (1965) ICCF 2008 1/2-1/2}) (7... Nfd7 8. Ne2 f5 9. exf5 exd4 10. Qxd4 Nc6 11. Qe4 Nce5 12. Qe3 Nc5 13. f6 Qxf6 14. f4 Ncd3+ 15. Kd2 Bf5 16. Nc3 O-O-O 17. fxe5 dxe5 18. Nd5 Nb4 19. Qc5 {Zimmermann,F (2167) -Owens,J (2153) ICCF 2017 1/2-1/2 (28)}) 8. Qxd4 Nc6 (8... O-O 9. Bg5 Nc6 10. Qc3 Qe5 11. Bxf6 gxf6 12. Ne2 Be6 13. Ng3 a5 14. Rc1 a4 15. Bd3 Qc5 16. Rf1 Qe3+ 17. Kd1 Ra5 18. f4 Nb4 19. Be2 Qxc3 20. Rxc3 {Coyne,D (2333)-Fischer,D (2350) ICCF 2016 1/2-1/2 (35)}) 9. Qc3 O-O (9... Qe5 10. Ne2 Be6 11. Bd2 O-O-O 12. Nf4 Rhe8 13. b4 h6 14. O-O-O Nd7 15. Qxe5 dxe5 16. Nxe6 Rxe6 17. Bc3 Rd6 18. Rd5 Nb6 19. Rxd6 cxd6 20. Kc2 Kc7 21. b5 {Jónsson,K (2331)-MacTilstra,I (2347) ICCF 2017 1/2-1/2 (37)}) 10. Ne2 (10. Be3 Nd7 (10... Ne8 11. Ne2 f5 12. exf5 Bxf5 13. Nd4 Nxd4 14. Qxd4 Nf6 15. O-O-O Rae8 16. Re1 Nd7 17. Bd2 Qf7 18. b3 h6 19. Rxe8 Rxe8 20. Kb2 Nc5 21. h4 b6 22. Bc3 {Miciak,E (2381)-Poljak,D (2413) ICCF 2012 0-1 (93)}) (10... Re8 11. Ne2 a5 12. Ng3 a4 13. Be2 Qe5 14. Qxe5 dxe5 15. Kf2 Be6 16. Rhd1 g6 17. Rd2 Kg7 18. Rad1 Na5 19. Rc1 Nc6 20. Ke1 Red8 21. Rcd1 Rd7 22. Nf1 {Chilson,S (2147)-Edwards,K (2200) ICCF 2018 1/2-1/2 (84)}) 11. Ne2 (11. g4 Nde5 12. Be2 Be6 13. h4 a6 14. h5 f6 15. Nh3 b5 16. b3 Rfb8 17. Nf4 bxc4 18. bxc4 Qf7 19. Nd5 Rb7 20. h6 g5 21. O-O Rab8 22. f4 gxf4 { Tienhoven,R (2273)-Mackie,J (2183) ICCF 2005 1-0 (29)}) 11... f5 12. exf5 Rxf5 13. Ng3 Re5 14. Kf2 Nf6 15. Bf4 Rc5 16. Re1 Qf7 17. Qd2 Be6 18. b3 Ra5 19. h3 Nd7 20. Be3 Re8 21. Kg1 d5 {Almarza Mato,C (2139)-Binas,J (2121) ICCF 2014 1/ 2-1/2 (28)}) 10... Nh5 (10... Be6 11. Bg5 a6 12. Ng3 Ne5 13. f4 Nc6 14. Kd2 Nb8 15. Bd3 Nbd7 16. f5 {1-0 (16) Jones,J (1950)-Davis,J (1192) ICCF 2020}) (10... Ne8 11. Nf4 Qe5 12. Nd5 Qxc3+ 13. Nxc3 f5 14. Bd2 fxe4 15. Nxe4 Bf5 16. Ng3 Be6 17. Be2 Nf6 18. O-O a5 19. Rac1 Nd7 20. Rfe1 Nc5 21. Bf1 b6 22. Re3 {Smit,F (1919)-Grebenshchikov,A (2232) ICCF 2021 1/2-1/2 (30)}) (10... Re8 11. Nf4 Ne5 12. Be2 Ng6 13. O-O Nxf4 14. Bxf4 b6 15. Rae1 Bb7 16. Bd1 Nd7 17. Ba4 Qe6 18. Rd1 Re7 19. Bg3 h6 20. Rfe1 Ne5 21. Bc2 a5 22. h3 {Szerlak,A (2364)-Jefferson, N (2220) ICCF 2019 1/2-1/2 (61)}) 11. g4 (11. Bd2 a5 (11... Ne5 12. O-O-O (12. g4 Qh4+ 13. Kd1 Nf6 14. Be1 Qh6 15. g5 Qxg5 16. f4 Qh5 17. fxe5 Nxe4 18. Qe3 Qxe5 19. Nc3 Bg4+ 20. Kc1 Ng5 21. Bf2 Rfe8 22. Qxe5 dxe5 23. Bg2 Bf3 { Rovchakov,V (2214)-Osipov,A (2023) ICCF 2013 0-1 (30)}) 12... f5 13. exf5 Bxf5 14. Ng3 Nxg3 15. hxg3 Rfe8 {1/2-1/2 (15) Williams,R (2333)-Keskowski,T (2353) ICCF 2013}) 12. Rg1 (12. O-O-O f5 13. exf5 Nb4 14. Qb3 Bxf5 15. Nd4 Bg6 16. a3 Na6 17. Qxb7 Nc5 18. Qd5+ Kh8 19. g4 Nf6 20. Qg5 Qe8 21. Re1 Qa4 22. Bc3 Nfd7 23. Re3 Ne5 {Urpilainen,E (2118)-Arppi,H (2289) ICCF 2020 0-1 (42)}) (12. g4 Qh4+ 13. Kd1 Nf6 14. Be1 (14. Ng3 Re8 15. Be2 h5 16. g5 Nh7 17. f4 g6 18. h3 Bd7 19. Qe3 f6 20. gxf6 Nxf6 21. Bc3 Rad8 22. Kc1 Kh7 23. Rf1 Re7 24. f5 Nxe4 25. fxg6+ Kg8 {Bolda,G (2136)-Vlasak,R (2188) ICCF 2014 1/2-1/2 (56)}) 14... Qg5 15. Bd2 {1/2-1/2 (15) Almarza Mato,C (2090)-Santamaría Pérez,T (2341) ICCF 2012}) 12... Be6 13. h3 Nf6 14. Bg5 (14. g4 Nd7 15. Ng3 f6 16. Be2 Nc5 17. Be3 a4 18. h4 Qf7 19. Kf2 Na5 20. Rac1 Nc6 21. Ra1 Na5 22. Nf5 Kh8 23. h5 b6 24. Rgc1 Bxf5 25. exf5 Qe7 {Szerlak,A (2357)-Grebenshchikov,A (2272) ICCF 2018 1/ 2-1/2 (70)}) 14... a4 15. Nf4 Ne5 16. Nh5 Ned7 17. g4 h6 18. Nxf6+ Nxf6 19. Bxf6 Qxf6 20. Qxf6 gxf6 21. Kf2 Kg7 22. Be2 Ra6 {Anikeev,V (2223) -Grebenshchikov,A (2326) ICCF 2014 1/2-1/2 (34)}) 11... Qh4+ 12. Kd1 Nf6 13. Ng3 h5 (13... Be6 14. Be3 (14. Kc2 a5 15. Be3 Nb4+ 16. Kb1 Nd7 17. Be2 f6 18. a3 Nc6 19. Kc2 g6 20. Rag1 Kh8 21. Kb1 Nc5 22. Bf2 Qh6 23. h4 Na4 24. Qc2 Nc5 25. g5 fxg5 {Abramov,S (2244)-Trofimov,N ICCF 2010 1-0 (32)}) 14... Nd7 (14... a5 15. Qd2 h6 16. g5 hxg5 17. Bxg5 Qh8 18. Bxf6 gxf6 19. Rg1 Rfe8 20. Nf5+ Kf8 21. Ne3 Qh5 22. Nd5 Bxd5 23. cxd5 Ne5 24. Rg3 f5 25. Rh3 Qg6 26. Rc1 { Urpilainen,E (2206)-Overmark,O (2231) ICCF 2014 1/2-1/2 (57)}) 15. Be2 a5 16. Kd2 Nc5 17. Nh5 f6 18. Rag1 Bf7 19. Nf4 Rfe8 20. Kd1 g5 21. Ng2 Qh6 22. h4 Qg6 23. Rh3 Na4 24. Qd2 Qg7 25. Rgh1 {Sacripanti,G (2317)-Cosentino,A (1997) ICCF 2016 1-0 (34)}) 14. g5 Nh7 15. Qe3 (15. Be2 Nxg5 16. Bxg5 Qxg5 17. f4 Qc5 18. Nxh5 Qd4+ 19. Qxd4 Nxd4 20. Rg1 g6 21. h4 Kh8 22. Nf6 Kg7 23. Nh5+ Kh6 24. Nf6 c5 25. Kd2 Be6 26. b3 Rh8 {Beketov,N (2192)-Grebenshchikov,A (2303) ICCF 2017 1/2-1/2 (28)}) 15... f6 16. gxf6 Rxf6 17. Be2 Bh3 18. f4 Re6 19. Bd2 Rae8 20. Bf3 Bg4 21. h3 Nd4 22. Bxg4 hxg4 23. f5 R6e7 24. Qf4 Nf6 25. hxg4 Qxg4+ 26. Qxg4 Nxg4 27. Rf1 Nf6 28. Bc3 Nxe4 29. Nxe4 Rxe4 30. Kd2 Kf7 31. Rf2 Re2+ 32. Rxe2 Nxe2 33. Rh1 Ng3 34. Rh3 Nxf5 35. Rh7 Re4 36. Kd3 Rh4 {0-1 (36) Bieliauskas,M (2205)-Lanzani,P (2092) ICCF 2012 English Opening: 1...e5-2 Nc3}) 5. Qxd4 (5. Nf3 Nf6 (5... c5 6. e3 dxe3 7. Bxe3 d6 8. Bf4 Be6 9. Nxe7 Nxe7 10. Qxd6 Qa5+ 11. Qd2 Qxd2+ 12. Kxd2 Nbc6 13. Kc3 Rd8 14. a3 O-O 15. Be2 Nd4 16. Nxd4 cxd4+ 17. Kd3 {Kriksciunas,B (2291)-Kuosmanen,K (2261) ICCF 2014 1/2-1/2 (53)}) 6. Nxd4 (6. Qxd4 Nc6 (6... Nxd5 7. cxd5 O-O 8. e4 d6 9. Bd3 Re8 10. O-O Bg4 11. Ne1 Bd7 12. Be3 c5 13. Qc3 Bf6 14. Qd2 Na6 15. Nf3 Qb6 16. Bc2 Nb4 17. Bb1 Na6 18. Bc2 {Blittkowsky,R (1895)-Knigge,M (1746) ICCF 2019 1/2-1/2 (49)}) 7. Qd1 O-O 8. Bf4 Nxd5 9. cxd5 Bb4+ 10. Bd2 Bxd2+ 11. Qxd2 Ne7 12. e3 d6 13. Rc1 Bg4 14. Be2 a5 15. O-O c5 16. dxc6 bxc6 17. b3 Re8 {Pekand,B (2292) -Barnett,F (2085) ICCF 2010 1/2-1/2 (48)}) 6... O-O (6... Nxd5 7. cxd5 O-O 8. e4 Bf6 9. Be2 Re8 10. f3 c6 11. d6 Qa5+ 12. Kf1 g6 13. Bd2 Qc5 14. Bc3 Be5 15. h4 Qxd6 16. h5 Qf6 17. hxg6 hxg6 18. Qd2 {Grego,L (2367)-Simal Moreira,L (2301) ICCF 2014 1/2-1/2 (27)}) 7. e3 (7. g3 Nxd5 8. cxd5 Bf6 9. Bg2 c5 10. Nb3 Re8 11. O-O d6 12. Nd2 Bf5 13. e4 Bg6 14. f4 Bd4+ 15. Kh1 h6 16. Rb1 f5 17. Nf3 fxe4 18. Nxd4 cxd4 {Kriksciunas,B (2260)-Bittner,A (2334) ICCF 2013 1/2-1/2 (27)}) 7... Nxd5 8. cxd5 c5 9. Nf5 Bf6 10. Be2 (10. Ng3 g6 11. Be2 d6 12. Qc2 Na6 13. O-O Nc7 14. Bf3 a5 15. Bd2 b5 16. a4 b4 17. e4 Re8 18. Rac1 Ba6 19. Rfe1 Rb8 20. b3 Na8 21. Be3 Nb6 {Shaw,S (2393)-Cijs,P (2355) ICCF 2011 0-1 (46) }) 10... d6 11. Ng3 Re8 12. O-O g6 13. f3 Be5 14. Rb1 Nd7 15. Bd2 Qe7 16. Qb3 Rb8 {Banshchikov,V (2055)-Osipov,A (2023) ICCF 2013 0-1 (43)}) (5. Bf4 d6 6. Nf3 c5 (6... Nf6 7. Nxe7 Qxe7 8. Nxd4 O-O 9. e3 Bg4 10. Qc2 Re8 11. h3 Bh5 12. Bd3 Bg6 13. Bxg6 hxg6 14. O-O a5 15. Rfd1 Nbd7 16. Nb5 Nc5 17. b3 Qd7 18. Rab1 {Garau,B (2362)-Hrzina,B (2100) ICCF 2017 1-0 (84)}) 7. e3 dxe3 8. fxe3 Nc6 9. Be2 Nf6 10. Nxe7 Qxe7 11. Qxd6 Qxd6 12. Bxd6 Ne4 13. Bf4 O-O 14. Nd2 Bf5 15. Nxe4 Bxe4 16. Kf2 Rfd8 {Walczak,T (2153)-Ciklabakkal,M (2164) ICCF 2016 1/2-1/ 2 (40)}) 5... Nf6 6. Nxe7 Qxe7 7. Bg5 (7. Qe3 Nc6 (7... d6 8. Qxe7+ Kxe7 9. e3 Nc6 10. Ne2 Nb4 11. Nd4 Re8 12. Be2 Ne4 13. O-O a5 14. f3 Nc5 15. Rd1 Nc6 16. b3 f6 17. Kf2 Be6 18. Ba3 Nb4 19. Bc1 {Szerlak,A (2357)-Sirotti,C (2109) ICCF 2018 1-0 (57)}) 8. Qxe7+ Kxe7 9. Bd2 (9. f3 d6 10. e4 Be6 11. Be3 a5 12. Rc1 Nd7 13. Ne2 Nb4 14. Nd4 {Barroqueiro,S-Rassack,J (2165) ICCF 2021}) (9. Nf3 Re8 10. e3 d6 11. Bd3 Kf8 12. b3 Ne4 13. Bb2 Nc5 14. Bb1 Kg8 15. Nd4 a5 16. Nxc6 bxc6 17. Bc2 a4 18. O-O Nd7 19. b4 c5 20. a3 Bb7 {Fasser,W (2099)-Osipov,A (2079) ICCF 2013 1/2-1/2 (45)}) 9... Ne4 10. f3 Nxd2 11. Kxd2 d6 12. e4 f5 13. exf5 Bxf5 {Hospers,B (1999)-Kuijpers,J ICCF 2020}) 7... Nc6 (7... Qb4+ 8. Qd2 Qxd2+ 9. Bxd2 Nc6 10. f3 d6 11. e4 Be6 12. Rc1 Ne5 13. Bc3 a5 14. a3 b6 15. f4 Nc6 16. Bd3 Nd7 17. b4 axb4 18. axb4 f6 19. Ne2 {Lelenko,A (2440)-Agryskina,N ICCF 2015 1/2-1/2}) 8. Qc3 (8. Bxf6 Nxd4 9. Bxe7 Kxe7 10. Rd1 Nc2+ 11. Kd2 Nb4 12. a3 Na6 13. e3 Nc5 14. Bd3 a5 15. Ne2 d6 16. Bc2 h5 17. Nf4 Be6 18. Kc3 g6 19. Nxe6 Kxe6 {Benages Mabres,V (2072)-Cuccumini,V (2000) ICCF 2021 1/2-1/2 (28)}) 8... d6 9. Nf3 (9. e3 Ne5 (9... Ne4 10. Bxe7 Nxc3 11. Bxd6 cxd6 12. bxc3 Be6 13. Nf3 Ke7 14. Be2 Rac8 15. Rb1 b6 16. Nd2 Rhd8 17. e4 Rc7 18. f3 Rdc8 19. Rb3 Ne5 20. Ra3 Rb7 21. Ra4 {Cannon,A (2263)-Jefferson,N (2028) ICCF 2012 1/ 2-1/2 (47)}) 10. Ne2 O-O 11. Nf4 h6 12. Bxf6 Qxf6 13. Nd5 Qd8 14. Be2 Bg4 15. Bxg4 Nxg4 16. O-O c6 17. Nf4 Qe7 18. Rad1 Rad8 19. Rd4 Qe5 20. Rfd1 Rfe8 { Arnold,E (1991)-Banshchikov,V (1994) ICCF 2016 1/2-1/2 (87)}) (9. Bxf6 Qxf6 10. Qxf6 gxf6 11. e3 Be6 12. Nf3 O-O-O 13. Nd4 Ne5 14. b3 c5 15. Nb5 d5 16. cxd5 Bxd5 17. Nxa7+ Kb8 18. Nb5 Bc6 19. Nc3 Rhg8 20. Rd1 b5 {Yeremenko,A (2439) -Wharam,J (2459) ICCF 2018 1/2-1/2 (33)}) 9... Be6 (9... Ne5 10. g3 (10. e3 h6 11. Bh4 g5 12. Nxe5 Ne4 13. Ng6 Nxc3 14. Nxe7 Kxe7 15. Bg3 Ne4 16. Bd3 Nxg3 17. hxg3 a5 18. Be2 f5 19. Kd2 Kf6 20. Rh2 Be6 21. b3 Rad8 {Löschnauer,R (2448) -Rydholm,L (2504) ICCF 2020 1/2-1/2}) (10. Nxe5 dxe5 11. f3 Bd7 12. Bh4 O-O 13. e4 Rfe8 14. O-O-O c5 15. Bd3 b6 16. Rd2 Bc6 17. Rhd1 Rad8 18. Bc2 Rd4 19. Bf2 Rd7 20. Bh4 {1/2-1/2 (22) Sakhabeev,R (2336)-Troger,D (2325) ICCF 2017}) 10... h6 11. Bxf6 Qxf6 12. Nd4 Nc6 13. Nb5 Qxc3+ 14. Nxc3 Be6 15. b3 O-O-O 16. Bg2 Ne5 17. Rd1 c6 18. f3 f5 19. f4 Ng4 20. Bf3 h5 21. Rd2 {Prakash,O (2425) -Siburian,C (2294) ICCF 2020 0-1 (29)}) 10. e3 O-O-O (10... Rg8 11. Bxf6 Qxf6 12. Qxf6 gxf6 13. g3 Ne5 14. Nd4 c5 15. Nxe6 fxe6 16. f4 Ng4 17. e4 Nh6 18. Be2 Ke7 19. O-O-O Nf7 20. Rd3 Nd8 21. e5 fxe5 22. fxe5 {Szerlak,A (2412)-Zielasko, A (2403) ICCF 2020 1/2-1/2 (26)}) 11. O-O-O (11. Be2 Rhg8 12. O-O-O Kb8 13. Rhe1 Bf5 14. g3 Bg6 15. Bxf6 gxf6 16. Nd4 Nxd4 17. Rxd4 Be4 18. f3 Bg6 19. Bd1 f5 20. a4 h5 21. a5 a6 22. Ba4 Rh8 {Kitson,K (2318)-Osipov,A (2295) ICCF 2015 1/2-1/2 (74)}) 11... Kb8 12. Be2 Bd7 13. Rd2 Rdg8 14. Bxf6 gxf6 15. g3 Qe4 { Degerhammar,R (2475)-Brewer,S (2427) ICCF 2014 1-0 (30)}) (4. b3 Nf6 5. Nc3 c6 6. e4 O-O 7. d3 d5 8. Nf3 d4 9. Ne2 Bg4 10. Nxe5 Qa5+ 11. Bd2 Qxe5 12. f3 Bc8 13. Bf4 Bb4+ 14. Kf2 Qe7 15. Qc1 Ba3 {Giessing,K (1432)-Drescher,A (1900) ICCF 2018 0-1 (33)}) (4. d3 Nf6 5. Nxe7 Qxe7 6. e4 Nc6 (6... c6 7. Nf3 d5 8. Qc2 dxe4 9. dxe4 Nbd7 10. b3 Nc5 11. Nd2 O-O 12. Bb2 Rd8 13. Be2 Bg4 14. f3 Bc8 15. b4 Ne6 16. Bxe5 Nd7 17. Bc3 Nf4 18. g3 {Vanosmael,A (2196)-Chomicki,H (2244) ICCF 2009 1/2-1/2 (31)}) 7. Nf3 h6 8. Be2 d6 9. Bd2 O-O 10. O-O Re8 11. Bc3 a5 12. a3 a4 13. Qd2 Nd7 14. Rfe1 Nc5 15. Bd1 Qf6 {Humbert,P-Guerassimov,A ICCF 2008 0-1 (31)}) (4. e3 d6 5. d4 Nf6 6. Nf3 Nxd5 7. cxd5 O-O 8. dxe5 dxe5 9. Nxe5 Bf6 10. Nf3 Re8 11. Bd3 c6 12. Bc4 b5 13. Bb3 c5 14. Bc2 Bb7 15. Qd3 g6 { Zeiske,W (1992)-Mulde,R (2028) ICCF 2014 0-1}) (4. g3 Nf6 5. Nxe7 Qxe7 6. Bg2 Nc6 7. d3 O-O 8. Bg5 h6 9. Bxf6 Qxf6 10. Qd2 Nd4 11. e3 Ne6 12. Ne2 c6 13. O-O a6 14. f4 d6 15. Rae1 exf4 {Robinson,J-Bruno,G (1140) ICCF 2020 1-0 (29)}) 4... d6 (4... Nc6 5. d4 e4 6. Nd2 f5 7. e3 Nf6 8. Nxe7 Qxe7 9. Be2 d6 10. b4 O-O 11. b5 Nd8 12. Bb2 Ne6 13. a4 f4 14. a5 Qf7 15. O-O Qg6 16. Kh1 {Hospers,B (2037) -Müllhaupt,P (2027) ICCF 2018 0-1 (40)}) 5. d4 (5. g3 Nf6 6. Nxe7 (6. Bg2 Nxd5 7. cxd5 c6 8. dxc6 (8. e4 f5 9. d3 cxd5 10. exd5 O-O 11. O-O Na6 12. Be3 f4 13. Bd2 fxg3 14. fxg3 Qb6+ 15. d4 e4 16. Ng5 Qxd4+ 17. Kh1 Rxf1+ 18. Bxf1 Bxg5 19. Bxg5 Qxb2 {Dicker,F (2211)-Pesonen,S (2212) ICCF 2013 0-1 (42)}) 8... Nxc6 9. d3 Be6 10. O-O O-O 11. a3 f5 12. b4 e4 13. Nd2 Bf6 14. Rb1 exd3 15. exd3 Qd7 16. Bb2 Bxb2 17. Rxb2 Rac8 {Cardoso García,S (2120)-Puertas Covarrubias,F (2099) ICCF 2007 1/2-1/2 (32)}) 6... Qxe7 7. Bg2 O-O 8. O-O Nc6 9. d3 (9. d4 Nxd4 10. Nxd4 exd4 11. Qxd4 Qxe2 12. Bg5 Qe5 13. Qxe5 dxe5 14. f4 h6 15. Bxf6 gxf6 16. Rad1 Rb8 17. Rd5 Be6 18. Rc5 c6 19. fxe5 fxe5 20. Rxe5 Bxc4 {Holmes, R-Young III,W ICCF 2008 0-1 (63)}) 9... h6 10. Bd2 a5 11. Bc3 d5 12. cxd5 Nxd5 13. Bd2 a4 14. Qc2 Rd8 15. Rfc1 Bg4 16. Qc4 Qd7 {Macarruda,M-Hechl,G (2171) ICCF 2014 0-1 (55)}) (5. d3 Nf6 6. Nxe7 Qxe7 7. b3 O-O 8. e3 c5 9. a3 d5 10. cxd5 Nxd5 11. Bb2 f6 12. Rc1 Be6 13. Qc2 Rc8 14. Be2 b6 15. O-O Nc6 16. Rfe1 Qd7 {Sodomski,A (2250)-Grebenshchikov,A (2321) ICCF 2015 1/2-1/2 (43)}) 5... e4 (5... Nf6 6. dxe5 dxe5 7. Nxe5 O-O (7... Nxd5 8. Qxd5 O-O 9. Bd2 Bf6 10. Nd3 Be6 11. Qxd8 Rxd8 12. Nc5 Bxc4 13. Nxb7 Re8 14. Na5 Bd5 15. Bc3 Bxc3+ 16. bxc3 Nd7 17. e3 Rab8 18. c4 Be4 19. Nb3 {Beck,G (2052)-Laliga,O (1834) ICCF 2014 1/ 2-1/2 (34)}) 8. Nf4 Bb4+ 9. Bd2 Bd6 10. Ned3 Re8 11. f3 Bf5 12. Qa4 Bd7 13. Qd1 Nh5 14. g3 Nxf4 15. Bxf4 Nc6 16. Kf2 Be6 17. Qc1 {Hassim,U (2333)-Broadway,D (2160) ICCF 2019 1-0 (80)}) (5... Nd7 6. e4 Ngf6 7. Bd3 O-O 8. O-O Nxd5 9. cxd5 exd4 10. Nxd4 Bf6 11. Be3 Nc5 12. b4 Nxd3 13. Qxd3 Bd7 14. Rfc1 Re8 15. Rc4 a6 16. Rac1 Rc8 17. a3 {Gierth,K (2335)-Franzén,T (2276) ICCF 2006 1/2-1/2 (35)}) 6. Nd2 f5 (6... c6 7. Nxe7 Qxe7 8. Nb3 (8. e3 f5 9. b4 a6 10. a4 Nf6 11. c5 d5 12. Nb3 O-O 13. Be2 Be6 14. O-O Kh8 15. Bd2 Rg8 16. b5 axb5 17. axb5 Rxa1 18. Qxa1 cxb5 19. Rb1 Bd7 {Bartsch,R-Risovic,A (1605) ICCF 2016 1-0}) 8... Nf6 9. g3 h6 10. Bg2 O-O 11. O-O Be6 12. Qc2 Na6 13. Bf4 Qd7 14. Nd2 d5 15. c5 Bh3 16. Qb3 Bxg2 17. Kxg2 Rfe8 18. Rac1 {Weseman,G (2135)-Simal Moreira,L (2243) ICCF 2013 0-1 (29)}) 7. e3 (7. f3 c6 8. Nxe7 Qxe7 9. g3 Nf6 10. Bg2 d5 (10... O-O 11. O-O e3 12. Nb1 f4 13. Qd3 Na6 14. gxf4 Re8 15. Nc3 Nb4 16. Qd1 Bf5 17. a3 Nc2 18. Ra2 Nh5 19. Ne4 Nxf4 20. Qxc2 Nxg2 21. Kxg2 Qh4 22. Nf6+ {Kusnierz,J (2049)-Grebenshchikov,A (2327) ICCF 2017 0-1 (43)}) 11. O-O O-O 12. Qb3 exf3 13. exf3 Re8 14. cxd5 cxd5 15. Rd1 Nc6 16. Nf1 Be6 17. Bf4 h6 18. Rac1 Rac8 { Figueredo Company,J (2285)-Cañizares Cuadra,P (2200) ICCF 2013 0-1 (30)}) (7. Nb1 Nf6 8. Nbc3 O-O 9. Nxe7+ (9. g3 Nxd5 10. Nxd5 Be6 11. Nxe7+ Qxe7 12. d5 Bf7 13. Bh3 Bh5 14. Be3 Nd7 15. Qc2 Qe8 16. O-O Bg4 17. Bxg4 fxg4 18. Bd4 Qg6 19. Rae1 a6 20. f4 b6 {Cárdenas Huaman,A (2152)-Hechl,G (2167) ICCF 2013 1/2-1/2 (45)}) 9... Qxe7 10. Bg5 Be6 11. e3 c5 12. dxc5 dxc5 13. Nd5 Qf7 14. Bxf6 gxf6 15. Qb3 Bxd5 16. cxd5 Nd7 17. Be2 Rac8 18. O-O Ne5 {Mironchik,A (1870) -Szymanski,R (2381) ICCF 2017 1/2-1/2 (38)}) 7... Nf6 (7... Be6 8. Nf4 Bf7 9. g4 g5 10. Nd5 Qd7 11. gxf5 Nf6 12. Nxf6+ Bxf6 13. Nxe4 Qxf5 14. Qg4 Be6 15. Qxf5 {1-0 (15) Cabrera Trujillo,C (1585)-Davis,J (1233) ICCF 2020}) 8. Nxe7 Qxe7 9. Be2 (9. b4 O-O 10. Be2 a5 11. b5 c5 12. bxc6 bxc6 13. Nb1 Na6 14. O-O Nb4 15. a3 Nd3 16. Bxd3 exd3 17. Qxd3 Ba6 18. Re1 Qe6 19. Nd2 Ne4 20. f3 Nxd2 { Pentala,N-Grebenshchikov,A (2284) ICCF 2018 1/2-1/2 (31)}) 9... O-O (9... c5 10. d5 Nbd7 11. b3 Ne5 12. O-O Bd7 13. Bb2 O-O 14. Bc3 g5 15. b4 cxb4 16. Bxb4 f4 17. Bc3 Rac8 18. Bxe5 Qxe5 19. Rb1 f3 20. gxf3 Bh3 21. Re1 {Sanjur,R (1914) -Arosemena Torrijos,F ICCF 2016 0-1 (34)}) 10. O-O c5 11. Nb1 Nc6 (11... Be6 12. b3 Bf7 13. Bb2 Nc6 14. Nc3 cxd4 15. exd4 d5 16. Nb5 Qd7 17. Ba3 Rfd8 18. Nd6 f4 19. Re1 Qe7 20. Nb5 Qd7 21. Nd6 Qc7 22. c5 Ne8 23. Qd2 {Beck,G (1956) -Loisel,D ICCF 2016 1/2-1/2 (36)}) 12. Nc3 Rd8 13. f3 Kh8 14. fxe4 Nxe4 15. Bd3 {Sodomski,A (1934)-Wojciechowski,P ICCF 2008 1/2-1/2 (40)}) (3... Nc6 4. Nxb4 ( 4. a3 Bd6 (4... Be7 5. g3 d6 6. Bg2 Nf6 7. e3 O-O 8. Ne2 Bg4 9. O-O Qd7 10. d3 Nxd5 11. cxd5 Nd8 12. f3 Bh5 13. e4 f6 14. Be3 c6 15. Nc3 Nf7 16. h4 {Beketov, N-Lyashenko,S (1936) ICCF 2013 1-0 (37)}) 5. e3 Nf6 6. Ne2 O-O 7. Nxf6+ Qxf6 8. Nc3 b6 9. Be2 Bb7 10. O-O Ne7 11. d3 Qg6 12. e4 f5 13. b4 Rab8 14. Bf3 Qe6 15. Bb2 Ng6 {Krutous,A (2271)-Rusak,A (2075) ICCF 2019 1-0 (36)}) 4... Nxb4 5. a3 ( 5. d3 Nf6 (5... d6 6. g3 Nc6 7. Nf3 Nge7 8. Bg2 O-O 9. O-O Bd7 10. Bd2 Qc8 11. Re1 Bh3 12. Bh1 Qd7 13. b4 f6 14. Qb3 Nd8 15. d4 Nf7 16. d5 Ng6 17. Rac1 { Murden,C (2349)-Dlugolecki,G (1980) ICCF 2007 1/2-1/2 (48)}) (5... c5 6. g3 Ne7 7. Bg2 O-O 8. Nf3 Nbc6 9. O-O d5 10. cxd5 Nxd5 11. Qb3 Nc7 12. Qc4 b6 13. Qe4 Nd4 14. Nxd4 exd4 15. Qh4 Nd5 16. b4 Qxh4 17. gxh4 {Alfaro de Hombre,J (2340) -Scott,P (2301) ICCF 2020 1/2-1/2}) 6. Nf3 (6. a3 Nc6 7. e4 h6 8. Nf3 d6 9. h3 Be6 10. Be3 Ne7 11. Be2 c5 12. b4 Qc7 13. b5 Nd7 14. a4 f5 15. exf5 Nxf5 16. g4 Nd4 17. Nxd4 exd4 {Matos,V (1373)-Schumacher,T ICCF 2020 0-1 (25)}) 6... Nc6 ( 6... Qe7 7. a3 Nc6 8. b4 O-O 9. e3 d6 10. Be2 a5 11. b5 Nb8 12. O-O Nbd7 13. d4 b6 14. Nd2 Bb7 15. Bd3 Rfe8 16. a4 Nf8 17. Bb2 Ne6 18. Re1 {Pleijsier, H-Brzezinski,B ICCF 2013 1-0 (51)}) 7. e4 d6 8. Be2 O-O 9. O-O Qe7 10. Be3 Bd7 11. h3 a5 12. Qd2 h6 13. Qc3 Nd8 14. c5 Ne6 15. Rfc1 Rfc8 16. a3 Nh5 {Spagnoli, L-Lyashenko,S (1987) ICCF 2012 1-0 (39)}) (5. g3 Nf6 (5... d5 6. Bg2 dxc4 7. Qa4+ Bd7 8. Qxb4 Ne7 9. Qxb7 Rb8 10. Qxa7 Bc6 11. Bxc6+ Nxc6 12. Qc5 Qd7 13. Nf3 f6 14. Qxc4 g5 15. b3 Rb4 16. Qc3 e4 17. Nxg5 {Lefebvre,P-Lau,K (1704) ICCF 2011 1-0 (25)}) 6. Bg2 d6 (6... O-O 7. d3 Qe7 (7... d6 8. Nf3 c5 9. O-O Re8 10. Bg5 h6 11. Bxf6 Qxf6 12. Nd2 Rb8 13. a3 Na6 14. Qa4 Qe7 15. b4 cxb4 16. axb4 Bd7 17. Qb3 Be6 18. Qb2 Nc7 19. Rxa7 {Darmanto,H (2154)-Silva,N (1743) ICCF 2017 1-0 (30)}) 8. Nh3 h6 9. O-O d5 10. a3 Nc6 11. cxd5 Nxd5 12. Ng5 Rd8 13. Ne4 Bg4 14. Bd2 a5 15. Rc1 Nd4 16. f3 Bf5 17. e3 Ne6 18. Qe1 {Ciesielski,S (2574)-Nowakowski,M (2407) ICCF 2007 1/2-1/2 (40)}) 7. Nf3 Bf5 8. d3 c5 9. O-O Qa5 10. Re1 e4 11. dxe4 Bxe4 12. Qxd6 Nc2 13. Bh6 Bxf3 14. Qe5+ Kf8 15. Qxf6 Bxg2 16. Bxg7+ Ke8 {Carey,G-Baller,M (1558) ICCF 2019 1-0}) (5. Nf3 e4 6. Nd4 Nf6 7. a3 Nc6 8. Nxc6 dxc6 9. d4 O-O 10. e3 Bg4 11. Qc2 Re8 12. h3 Bh5 13. Bd2 c5 14. g4 Bg6 15. Bc3 cxd4 16. Bxd4 Qe7 {Kutsenko,A-Moisan,M (1662) ICCF 2019 1-0 (56)}) 5... Nc6 (5... Na6 6. b4 Qe7 7. Nf3 e4 8. Nd4 Nf6 9. Bb2 d5 10. cxd5 Nxd5 11. e3 Bd7 12. Rc1 c6 13. Bxa6 bxa6 14. Nxc6 Qd6 15. Ne5 O-O 16. Nxd7 Qxd7 17. d3 {Labonté,R (2439)-Bergner,M (2266) ICCF 2019 1-0 (36)}) 6. e3 (6. b4 Nf6 7. Bb2 O-O 8. b5 Na5 9. Qa4 b6 10. Bxe5 Re8 11. Nf3 a6 12. e3 axb5 13. cxb5 Bb7 14. Qh4 Nb3 15. Ra2 Nc5 16. Bxf6 gxf6 17. d4 Bd5 {Ellis,J (2136)-Starke,H (2397) ICCF 2009 1/2-1/2 (37)}) 6... Nf6 (6... d5 7. b4 Nge7 8. Bb2 O-O 9. cxd5 Qxd5 10. f3 Be6 11. Qc2 Rad8 12. Ne2 f5 13. Nc3 Qd6 14. Be2 a6 15. Rd1 b5 16. O-O Rf6 17. d3 Bf7 18. f4 {Bißmann,S (2394)-Peled,S (2245) ICCF 2017 1/2-1/2 (30)}) 7. b4 O-O 8. Bb2 d5 9. Nf3 e4 (9... Bg4 10. h3 Bxf3 11. Qxf3 d4 12. Be2 Qd6 13. O-O d3 14. Bd1 h6 15. Qf5 Rfe8 16. Bb3 Qd7 17. Qxd7 Nxd7 18. c5 a6 19. f3 Nf6 20. Kf2 Rad8 21. g4 {Copsey,A (2307)-Elwood,D (1987) ICCF 2020 1-0 (46)} ) 10. Nd4 Ne5 11. cxd5 Bg4 (11... Re8 12. Be2 Bg4 13. f3 exf3 14. Nxf3 Bxf3 15. gxf3 Qxd5 16. Rg1 Re6 17. Rc1 c6 18. Rc5 Nd3+ 19. Bxd3 Qxd3 20. Qc2 Qd6 21. Rg2 Rd8 22. Rc4 g6 23. Rd4 {Arancibia Guzmán,E (2471)-Sánchez,M (2389) ICCF 2011 1-0 (63)}) 12. Qc2 Qxd5 13. Qxc7 Rfc8 14. Qa5 Qd6 15. h3 {Jenkinson,S (2289) -Ghisi,S (1955) ICCF 2017 1-0 (48)}) (3... a5 4. Nf3 (4. a3 Bc5 (4... Be7 5. d4 (5. Nf3 c6 (5... d6 6. Nxe7 Nxe7 7. e3 O-O 8. b3 e4 9. Nd4 Nbc6 10. Nxc6 Nxc6 11. Qc2 Bf5 12. f4 Re8 13. g3 d5 14. cxd5 Qxd5 15. Bb2 Be6 16. Qc3 f6 17. Bc4 { Almarza Mato,C (2116)-Gulbis,H (2278) ICCF 2020 1/2-1/2 (38)}) 6. Nc3 d6 7. d4 Nd7 8. e4 Ngf6 9. Be2 O-O 10. O-O Re8 11. Be3 Ng4 12. Bd2 Qc7 13. h3 exd4 14. Nxd4 Ngf6 15. Qc2 a4 16. Rad1 Nc5 {Rulfs,E (2244)-Heyn,W (2200) ICCF 2017 1-0 (42)}) 5... d6 6. Nf3 (6. e3 Nf6 7. Nc3 O-O 8. Bd3 exd4 9. exd4 d5 10. cxd5 Re8 11. Nge2 Nbd7 12. O-O Nb6 13. Nf4 Nbxd5 14. Nfxd5 Nxd5 15. Bxh7+ Kxh7 16. Qh5+ Kg8 17. Nxd5 Bf8 {Sande,Ø (2165)-Johansen,J (2339) ICCF 2021 1/2-1/2 (37)}) 6... e4 7. Nd2 c6 (7... f5 8. Nb1 Nf6 9. Nbc3 Nxd5 10. Nxd5 O-O 11. e3 Bg5 12. Be2 c6 13. Nc3 Be6 14. O-O Nd7 15. Bd2 Qe7 16. b3 Nf6 17. Qc2 Qf7 18. Qb2 b6 19. Rac1 {Brooks,I (2581)-Hall,R (2619) ICCF 2009 1/2-1/2 (53)}) 8. Nxe7 (8. e3 cxd5 9. cxd5 Nf6 10. Bc4 Nbd7 11. Qc2 Nb6 12. Nxe4 Nxc4 13. Nxf6+ Bxf6 14. Qxc4 O-O 15. O-O b6 16. b4 Bb7 17. Bd2 Qe7 18. Rfc1 Rfc8 19. Qb5 axb4 {Schumacher,U (2191)-Kristjánsson,S (2184) ICCF 2020 0-1 (45)}) 8... Qxe7 9. Nb1 h6 10. Nc3 Nf6 11. g3 Nbd7 12. Bg2 Nb6 13. b3 Be6 14. O-O O-O 15. d5 cxd5 16. Be3 { Poupinel,M (1937)-Rivollier,F (1669) ICCF 2018 0-1 (35)}) 5. e3 Nc6 (5... Nf6 6. d4 (6. Nc3 O-O 7. d4 exd4 8. exd4 Be7 9. Nf3 d5 10. cxd5 Nxd5 11. Bd3 Bg4 12. h3 Be6 13. O-O Nd7 14. Qc2 h6 15. Re1 c6 16. Bd2 Re8 17. Bh7+ Kh8 {Mooij,W (2507)-Johnsen,K (2469) ICCF 2007 1-0 (59)}) 6... Nxd5 7. cxd5 exd4 8. exd4 Bb6 9. Be3 (9. Qe2+ Qe7 10. d6 cxd6 11. Bf4 d5 12. Bd6 Qe4 13. f3 Qe6 14. Nh3 Nc6 15. Nf4 Qxe2+ 16. Bxe2 Nxd4 17. Bd3 Bd8 18. Kf2 f6 19. Nxd5 Kf7 20. Rhd1 b5 { Pesonen,S (2206)-Kuosmanen,K (2314) ICCF 2014 1-0 (51)}) 9... d6 10. Bd3 Nd7 11. Ne2 O-O 12. O-O Nf6 13. Nc3 Ng4 14. Bc1 Qh4 15. h3 Nf6 16. Be3 Bd7 17. Re1 {Anreiter,A (2221)-Vegjeleki,A (2309) ICCF 2011 1/2-1/2 (31)}) 6. Nf3 Nf6 7. d4 exd4 8. exd4 Be7 9. Bd3 d6 10. O-O O-O 11. h3 (11. Nxe7+ Nxe7 12. Re1 Ng6 13. Qc2 Bg4 14. Ng5 d5 15. f3 Bd7 16. c5 Re8 17. Bd2 Rxe1+ 18. Rxe1 a4 19. h3 Nf8 20. f4 h6 21. Nf3 Ne4 22. Ne5 Bf5 {Urpilainen,E (2103)-Mamonovas,V (2092) ICCF 2020 1/2-1/2 (33)}) 11... Nxd5 12. cxd5 Nb8 13. Re1 Nd7 14. Qe2 Bf6 15. Bh6 Nb6 {Arnold,E (1991)-Mamonovas,V (2171) ICCF 2016 0-1 (54)}) (4. Nxb4 axb4 5. d4 ( 5. b3 d6 6. Bb2 Nc6 7. g3 Nf6 8. Bg2 Be6 9. d3 O-O 10. e3 Qd7 11. Ne2 Bh3 12. Bxh3 Qxh3 13. Qd2 Qg2 14. O-O-O Rxa2 15. Kb1 Rfa8 16. Nc1 R2a5 {Pronovost,D (1837)-Owens,J (1355) ICCF 2014 0-1 (41)}) (5. e4 Nc6 6. Nf3 Nf6 7. d3 h6 8. Be2 d6 9. Be3 Be6 10. O-O O-O 11. a3 Ng4 12. Bd2 bxa3 13. bxa3 f5 14. Qb1 fxe4 15. dxe4 b6 16. Qe1 Na5 {Tanner,A (1694)-Wheatley,D (1717) ICCF 2020 1-0 (46)}) 5... exd4 6. Qxd4 Nf6 7. Qe5+ (7. e4 O-O 8. b3 Nc6 9. Qd3 Nxe4 10. Nf3 Qf6 11. Rb1 Re8 12. Be2 {1-0 (12) Matos,V (1446)-Marku,G (2020) ICCF 2020}) 7... Kf8 8. Qc5+ d6 9. Qxb4 Na6 10. Qa4 Bf5 11. Bg5 c5 {0-1 (11) Mironchik,A (2125) -Banshchikov,V (2028) ICCF 2015}) (4. e3 Nf6 5. Nf3 e4 6. a3 Be7 7. Nd4 c6 8. Nxe7 Qxe7 9. b3 d5 10. Bb2 O-O 11. cxd5 Nxd5 12. d3 f5 13. Be2 Nd7 14. O-O Nc5 15. dxe4 fxe4 {Radytia,A (1991)-Willers,F ICCF 2018 1-0}) 4... d6 (4... e4 5. Nd4 c6 (5... c5 6. Nc2 a4 7. Ncxb4 cxb4 8. Nxb4 Nf6 9. g3 O-O 10. Bg2 Nc6 11. Nd5 d6 12. O-O Nxd5 13. cxd5 Nd4 14. e3 Nf3+ 15. Bxf3 exf3 16. Qxf3 b5 17. e4 { Archip,L-Bruno,G (1174) ICCF 2020 1/2-1/2 (42)}) 6. Nxb4 axb4 7. Qb3 (7. d3 d5 8. Bf4 Nf6 9. cxd5 Qxd5 10. dxe4 Qxe4 11. Bd6 Nd5 12. e3 Nd7 13. Qd2 Qg6 14. Bg3 Rxa2 15. Rd1 Nc5 16. Qc1 Ra5 17. Bc4 Nb6 18. O-O Nxc4 {Hempel,R (2222) -Groot,P (2132) ICCF 2017 1/2-1/2 (54)}) (7. Nf5 Qf6 8. Ng3 d5 9. cxd5 cxd5 10. e3 Nc6 11. d4 Nge7 12. Bb5 O-O 13. Bd2 Ra5 14. a4 b6 15. Qe2 Qd6 16. O-O Na7 17. Qe1 Nec6 18. Be2 g6 {Gündogdu,K (1951)-Marcuzzo,G (2021) ICCF 2017 1/2-1/2 (66)}) 7... Na6 8. d3 exd3 9. exd3 Nf6 10. Bg5 O-O 11. Be2 Re8 12. Qc2 d6 13. O-O Bd7 14. Bf3 h6 15. Bh4 g5 16. Bg3 {Avery,B (1673)-Zarges,R (2184) ICCF 2019 1/2-1/2 (46)}) (4... Nc6 5. a3 Be7 6. d4 (6. e3 e4 7. Ng1 Ne5 8. Qc2 f5 9. b3 d6 10. f4 exf3 11. Nxf3 Nxf3+ 12. gxf3 Bh4+ 13. Kd1 Nf6 14. Bb2 c6 15. Nf4 Bg5 16. Ne2 O-O 17. h4 Bh6 {Haugen,A (2410)-Johansen,J (2339) ICCF 2021 1-0 (57)}) 6... exd4 7. Nxd4 Nxd4 8. Qxd4 Nf6 9. Nxe7 Qxe7 10. c5 d5 11. cxd6 Qxd6 12. Qxd6 cxd6 13. Bd2 Be6 14. Bc3 Ke7 15. f3 Rhc8 16. g4 {Ciesielski,S (2574) -Walczak,A (2369) ICCF 2006 1/2-1/2 (60)}) 5. a3 (5. g3 Bc5 (5... c6 6. Ne3 e4 7. Nd4 Bc5 8. Ndc2 d5 9. cxd5 cxd5 10. d3 d4 11. Nc4 Bf5 12. Bg2 exd3 13. exd3 Qe7+ 14. Kf1 Nc6 15. Bxc6+ bxc6 16. Kg2 Be6 17. Bd2 {Dziedzic,A (2166)-Boveda gay,A (2108) ICCF 2018 1/2-1/2 (45)}) (5... Nf6 6. Nxb4 axb4 7. d3 c5 8. Bg2 Nc6 9. O-O h6 10. Nd2 Be6 11. Ne4 Nxe4 12. Bxe4 O-O 13. f4 d5 14. cxd5 Bxd5 15. Bxd5 Qxd5 16. fxe5 Rfe8 17. e3 {Poupinel,M (1778)-Pradeilles,G (1819) ICCF 2020 0-1 (28)}) 6. d4 exd4 7. Nxd4 c6 8. Nc3 Qb6 9. e3 Nf6 10. Bg2 Bg4 (10... O-O 11. O-O Re8 12. Na4 Qc7 13. Qc2 Ba7 14. b3 Bg4 15. Bb2 Bh5 16. Nf5 Nbd7 17. Qd2 Re6 18. Bc3 Ne5 19. Bxa5 Bxe3 20. Bxc7 Bxd2 21. Nxd6 Nf3+ 22. Bxf3 { Hansen,T (2428)-Rasmussen,E (2287) ICCF 2005 1/2-1/2 (41)}) 11. Qc2 Bxd4 12. Na4 Qa7 13. exd4 Qxd4 14. Be3 Qe5 15. O-O O-O 16. Bf4 Qe7 {Thurlow,K (2203) -Pardoe,I (1687) ICCF 2018 1-0 (27)}) 5... Bc5 6. d4 (6. e3 Nf6 (6... c6 7. d4 (7. Nc3 Qe7 8. d4 Bb6 9. Na4 Nd7 10. dxe5 dxe5 11. Nxb6 Nxb6 12. b3 Nf6 13. Bb2 e4 14. Nd4 O-O 15. Be2 Bg4 16. Bxg4 Rfd8 17. Qe2 g6 18. O-O c5 {Davey, A-Czeizinger,T ICCF 2020 1-0 (32)}) 7... cxd5 8. dxc5 e4 9. Nd2 Nf6 10. cxd5 O-O 11. Bc4 Nbd7 12. O-O Nxc5 13. b3 Bg4 14. Qc2 Nfd7 15. h3 Bf5 16. Bb2 Rc8 17. Bd4 Qh4 18. Kh2 {Bonsack,L (2379)-Bachmann,W (2392) ICCF 2020 1/2-1/2 (30)} ) 7. d4 Nxd5 8. cxd5 exd4 9. exd4 Bb6 10. Bg5 (10. Bb5+ Nd7 11. Bg5 f6 12. Be3 O-O 13. O-O h6 14. Nh4 f5 15. Ng6 Rf6 16. Nf4 Nf8 17. Qa4 Bd7 18. Rae1 Bxb5 19. Qxb5 Qd7 20. Qd3 Qf7 21. Qd1 Qd7 {Coyne,D (2315)-Peled,S (2248) ICCF 2017 1/ 2-1/2 (45)}) 10... f6 11. Be3 O-O 12. Bd3 f5 13. Qc2 h6 14. O-O f4 15. Bd2 Bg4 16. Rae1 Nd7 17. Bc3 Bxf3 {Morley,P (2368)-Biedermann,T (2433) ICCF 2017 1/2-1/ 2 (44)}) (6. d3 h6 7. e3 Nf6 8. Nc3 Bb6 9. d4 Qe7 10. Be2 c6 11. O-O O-O 12. Qc2 Re8 13. h3 e4 14. Nd2 Bf5 15. Qb3 Bd8 16. Re1 Bg6 17. Nf1 Ra7 {Groot,P (2086)-Kriksciunas,B (2260) ICCF 2013 1/2-1/2 (52)}) 6... exd4 7. Nxd4 Ne7 8. Bg5 f6 9. Bf4 (9. Bh4 O-O 10. e3 Bxd4 11. Nxe7+ Qxe7 12. Qxd4 a4 13. Be2 Nc6 14. Qc3 Qe4 15. Bg3 Qxg2 16. O-O-O Na5 17. Kb1 Bf5+ 18. Ka2 Qc6 19. Rhg1 Be6 20. Rd4 Qb6 {MacMillen,A (1829)-Rakhimov,R ICCF 2014 0-1 (36)}) 9... Nbc6 (9... O-O 10. e3 Nbc6 11. Nb5 Nxd5 12. cxd5 Ne5 13. Be2 Bd7 14. O-O Ng6 15. Bg3 Bb6 16. Qd2 Qe8 17. Nd4 f5 18. Bc4 Qe4 19. f3 Qe7 20. Bf2 a4 21. Rac1 {Köstner,W (2306)-Krebs,J (2331) ICCF 2018 1/2-1/2 (34)}) 10. Nb5 Nxd5 11. cxd5 (11. Qxd5 Ne5 12. Bxe5 fxe5 13. Rd1 Bd7 14. e3 Qc8 15. Be2 Bc6 16. Qd3 O-O 17. O-O a4 18. h3 Qd8 19. Bg4 Qe7 20. Nc3 Rae8 21. Nd5 Qg5 22. Qe2 Kh8 {Lund,S (2006)-Koen,B (2049) ICCF 2019 1/2-1/2 (45)}) 11... Ne5 12. e3 Bd7 13. Nd4 O-O 14. Be2 Qe7 15. O-O {Hernández Delgado,J (1941)-Boveda gay,A (2039) ICCF 2018 0-1 (66)}) ( 3... Na6 4. a3 (4. Nf3 e4 5. Qb3 Be7 6. Nd4 Nf6 7. e3 O-O 8. Nxe7+ Qxe7 9. Be2 d6 10. O-O c5 11. Nb5 Nb4 12. a3 Nc6 13. d3 a6 14. Nc3 exd3 15. Bxd3 Be6 { Ward,A (2160)-Skripko,V (2352) ICCF 2010 0-1}) 4... Be7 (4... Bd6 5. d4 c6 6. dxe5 Bxe5 7. Nf3 d6 8. Nb4 Nc5 9. Nxe5 dxe5 10. Qxd8+ Kxd8 11. Be3 Ne6 12. O-O-O+ Kc7 13. Nd3 f6 14. f4 exf4 15. Nxf4 Ne7 16. g4 {Helman,B (2072)-Brown,K (2093) ICCF 2016 1/2-1/2 (29)}) 5. d4 (5. Nf3 d6 6. e4 c5 7. Be2 Nf6 8. Nxe7 Qxe7 9. d3 b6 10. Qa4+ Nd7 11. O-O O-O 12. Bg5 f6 13. Be3 Nc7 14. b4 Nb8 15. Nd2 Ne6 16. Nb1 Nd4 {Zunkovic,S (2057)-Vecek,M (2263) ICCF 2014 1/2-1/2}) 5... exd4 6. Qxd4 Nf6 7. Nxe7 Qxe7 8. Bg5 Nc5 9. Bxf6 gxf6 10. Rd1 b6 11. e3 Bb7 12. Ne2 Rg8 13. Ng3 Ne6 14. Qc3 Ng7 15. Bd3 {Rak,P (2374)-Skripko,V (2352) ICCF 2010 1/2-1/2 (52)}) (3... Bd6 4. d4 c6 5. dxe5 Bxe5 6. Nf3 d6 7. Ne3 Bf6 8. g4 h6 9. h4 Be6 10. Rg1 Qb6 11. Qc2 Ne7 12. g5 hxg5 13. hxg5 Qb4+ 14. Bd2 Qxb2 15. Qxb2 {Catozzi,M (2233)-Mulde,R (2222) ICCF 2018 1/2-1/2}) (3... c5 4. Nf3 Nc6 5. a3 Ba5 6. b4 Bb6 7. b5 e4 8. bxc6 exf3 9. cxd7+ Qxd7 10. Bb2 f6 11. e3 fxg2 12. Bxg2 Ne7 13. Qh5+ Kf8 14. Rg1 Qf5 15. Qe2 {Jácome Jiménez,A-Romero Díaz,C ICCF 2018 1-0}) (3... Nf6 4. Nxb4 d5 5. d4 exd4 6. Qxd4 dxc4 7. Qxd8+ Kxd8 8. Nc2 Re8 9. Bf4 c3 10. bxc3 Nc6 11. O-O-O+ Bd7 12. f3 Nh5 13. Bg5+ Kc8 14. e4 h6 15. Bh4 {Lagergren,H (1838)-Pirhot,T ICCF 2019 1-0 (60)}) 4. Nf3 (4. b4 Bf8 ( 4... Bd4 5. Rb1 c6 (5... Bxf2+ 6. Kxf2 Qh4+ 7. g3 Qxc4 8. Qb3 Qxb3 9. Rxb3 Kd8 10. Bb2 f6 11. d4 Nh6 12. Bh3 e4 13. Bc1 Nf7 14. Bf4 g5 15. Bxc7+ Ke8 16. Nxf6+ Ke7 17. Nd5+ {McCarthy,M (1882)-Lyardbrand,S ICCF 2021 1-0 (29)}) 6. e3 (6. Nc3 d5 7. e3 Bxc3 8. dxc3 Nf6 9. Nf3 Bf5 10. Ra1 Nbd7 11. Be2 O-O 12. O-O Qe7 13. Qb3 Rfc8 14. Nd2 a6 15. a4 dxc4 16. Bxc4 b5 17. Be2 Nb6 {Masset,J (1878) -Pradeilles,G (1819) ICCF 2020 1/2-1/2 (46)}) 6... Bb6 (6... cxd5 7. exd4 d6 ( 7... exd4 8. cxd5 d6 9. Bb2 Qe7+ 10. Qe2 Nf6 11. Bxd4 Nxd5 12. Bxg7 Rg8 13. Ba1 Nc6 14. a3 Bf5 15. Qxe7+ Kxe7 16. Rd1 a5 17. b5 Ne5 18. d4 Ng4 19. h3 {Hospers, B (2050)-Ambirk,J (2013) ICCF 2018 1/2-1/2 (42)}) 8. dxe5 dxe5 9. c5 (9. Nf3 Bf5 10. Rb3 Nd7 11. d4 dxc4 12. Bxc4 Rc8 13. Qe2 Be6 14. Rc3 Ngf6 15. Nxe5 O-O 16. Bb2 Nd5 17. Bxd5 Bxd5 18. O-O Nb6 19. a3 Rxc3 20. Bxc3 Re8 {Beltins,G (2050)-Kuzaj,H (2296) ICCF 2017 1/2-1/2}) 9... Bf5 10. Bb5+ Nc6 11. d3 Nge7 12. Nf3 O-O 13. O-O Qc7 14. h3 f6 15. Rb3 Be6 16. d4 e4 17. Ne1 a5 18. Nc2 { Paesschesoone,S (1770)-Ronat,O (2088) ICCF 2012 0-1 (61)}) 7. Nxb6 axb6 8. Bb2 d6 9. a3 (9. d4 Bf5 10. Ra1 Nd7 11. dxe5 dxe5 12. Nf3 Qe7 13. a3 Ngf6 14. h3 h6 15. Be2 O-O 16. O-O e4 17. Nd4 Bg6 18. Qb3 Rfd8 19. Rad1 Ne5 20. Qc3 Nd3 { McCarthy,M-Scott,P (2287) ICCF 2019 0-1 (37)}) 9... Bf5 10. d3 Nf6 11. Ne2 Nbd7 12. Ng3 Bg6 13. Be2 O-O 14. e4 Re8 15. O-O Nf8 16. f4 {Beketov,N (2130) -Chandler,J (1860) ICCF 2014 1-0 (33)}) (4... Be7 5. Nf3 d6 6. d4 Nf6 7. g3 O-O 8. Bg2 Nxd5 9. cxd5 e4 10. Nd2 f5 11. O-O Nd7 12. Nc4 Nf6 13. Ne3 Nh5 14. Nc4 Qe8 15. a4 Bd7 16. f3 {Monteiro,A (1734)-Mões Joaquim,C (1873) ICCF 2013 0-1 (56)}) 5. Bb2 (5. a3 c6 (5... a5 6. Bb2 d6 7. Nf3 Nf6 8. Nxf6+ Qxf6 9. g3 Be7 10. Bg2 O-O 11. O-O Qg6 12. d3 Be6 13. Nd2 c6 14. b5 Rc8 15. a4 h5 16. Ba3 h4 17. Rb1 {Zhak,B (2500)-Mesquita,U (2491) ICCF 2009 1-0 (52)}) 6. Nc3 (6. Ne3 a5 (6... Nf6 7. Bb2 d6 8. Nf3 Be7 9. g3 O-O 10. Qc2 Ng4 11. Nxg4 Bxg4 12. Bg2 Nd7 13. O-O Re8 14. d3 Qc7 15. Rfd1 a5 16. h3 Be6 17. e3 h6 18. e4 {Kuula,R-Kayser, P (2085) ICCF 2009 1/2-1/2}) 7. Bb2 d6 8. Nf3 Nf6 9. g3 Ng4 10. Nxg4 Bxg4 11. Bg2 Be6 12. Qc2 axb4 13. axb4 Rxa1+ 14. Bxa1 f6 15. O-O d5 16. d4 e4 17. Nd2 f5 {Zhak,B (2500)-Sörenfors,P (2438) ICCF 2009 1/2-1/2 (26)}) 6... d5 7. cxd5 (7. e3 Nf6 8. Bb2 (8. cxd5 cxd5 9. Nf3 e4 10. Nd4 Nc6 11. Nxc6 bxc6 12. d3 exd3 13. Bxd3 Bd6 14. Bb2 O-O 15. Qc2 a5 16. b5 Bd7 17. bxc6 Bxc6 18. O-O Rc8 19. Qe2 d4 {Lunek,F (2292)-Cade,S (2298) ICCF 2017 1/2-1/2 (30)}) 8... d4 9. Na4 a5 10. c5 axb4 11. axb4 dxe3 12. fxe3 Nd5 13. Nf3 e4 14. Nd4 Qg5 15. Qb1 Qg4 16. g3 Be7 17. Bg2 f5 18. Nc3 Rxa1 {Zhak,B (2337)-Lupynin,V (2376) ICCF 2008 1-0 (33)}) 7... cxd5 8. d4 exd4 (8... e4 9. Bf4 a5 10. Qa4+ Bd7 11. b5 Nf6 12. e3 Be7 13. Be5 Be6 14. b6+ Nc6 15. Bc7 Qd7 16. Nge2 O-O 17. Nf4 Bd8 18. Bxd8 Qxd8 19. Qb3 Qd6 20. Nb5 {Kries,Y (2067)-Kovalsky,S (2255) ICCF 2009 1/2-1/2 (70)}) 9. Nb5 a5 10. Qxd4 Be6 11. Qf4 Na6 12. e3 axb4 13. axb4 Nf6 14. Rxa6 bxa6 15. Nc7+ Kd7 16. Nxa8 Ne4 {Wolochowicz,P (2303)-Manole,G (2306) ICCF 2006 0-1}) (5. Qa4 c6 6. Nc3 d6 (6... Nf6 7. Nf3 e4 8. Nd4 Bd6 9. e3 O-O 10. Be2 Be5 11. Rb1 d5 12. cxd5 Nxd5 13. Nxd5 cxd5 14. b5 Qg5 15. g3 Bh3 16. Bb2 Nd7 17. Qb3 Bf6 18. f4 { Wenaas,E-Zuñiga,I ICCF 2009 0-1 (32)}) 7. Nf3 Nf6 8. e4 Nbd7 9. Be2 a5 10. b5 Nc5 11. Qc2 cxb5 12. cxb5 Bd7 13. d3 Rc8 14. O-O Qc7 15. Bd2 Be7 16. Rac1 O-O { Anreiter,A (2259)-Carvalho,L (2185) ICCF 2009 1/2-1/2 (30)}) 5... c6 6. Ne3 f6 7. a3 (7. Qb3 a5 8. b5 a4 (8... Bc5 9. Nf5 g6 10. Ng3 cxb5 11. Qxb5 b6 12. e3 Ne7 13. Ne4 O-O 14. Nxc5 bxc5 15. Qxc5 Na6 16. Qa3 d6 17. Qc3 Bf5 18. Be2 Rc8 19. d3 Nc5 20. Ba3 {Turczynski,M (2171)-Owens,J (2122) ICCF 2016 1-0 (38)}) 9. Qd3 a3 10. Bc1 (10. Bc3 Ne7 11. Bb4 d5 12. cxd5 Nxd5 13. Bxf8 Rxf8 14. bxc6 Nb4 15. Qxh7 N8xc6 16. Nf3 f5 17. Qg6+ Rf7 18. g4 Qf6 19. gxf5 e4 20. Qxf6 gxf6 21. Nh4 Nd4 {Hospers,B (1973)-Roques,P (2371) ICCF 2017 0-1 (52)}) 10... Bc5 11. Nf5 d5 12. Nxg7+ Kf7 13. Nh5 Bg4 14. Ng3 Ne7 15. e3 h5 16. cxd5 cxd5 17. Qb3 Nd7 18. Be2 Qa5 {Perina,G (2317)-Grammatica,A (2397) ICCF 2019 0-1 (62)}) (7. Nc2 d5 8. cxd5 cxd5 9. e3 Bd6 10. Bb5+ Nc6 11. Ne2 Nge7 12. O-O O-O 13. a3 Bg4 14. f3 Be6 15. d4 a5 16. Bd3 axb4 17. Nxb4 Qb6 18. Bc3 Qc7 {Ranieri,A (1894) -Cosentino,A (1985) ICCF 2017 0-1 (29)}) 7... d5 8. cxd5 cxd5 9. d4 e4 10. Qb3 Be6 11. f3 exf3 12. exf3 Nc6 (12... Bd6 13. Bd3 Ne7 14. Ne2 O-O 15. O-O Nd7 16. a4 Re8 17. a5 a6 18. Bc3 f5 19. b5 Nf6 20. bxa6 bxa6 21. Bd2 Qd7 22. Rab1 f4 23. Nd1 Bf5 24. Nf2 {Vötter,H (2381)-Krebs,J (2290) ICCF 2016 1/2-1/2 (47)}) 13. Bd3 Bd6 14. Ne2 Nge7 15. O-O O-O {Dearnley,A (2360)-Ruiz-Vidal,P (2321) ICCF 2017 1/2-1/2 (65)}) (4. e3 c6 (4... Ne7 5. d4 (5. a4 O-O 6. Nf3 Nbc6 7. d3 d6 8. Bd2 a5 9. Be2 Nxd5 10. cxd5 Nb4 11. Qb3 Re8 12. O-O c6 13. dxc6 bxc6 14. Qd1 Rb8 15. d4 exd4 16. Nxd4 Bxd4 {Krebs,J (2287)-Reuter,M ICCF 2016 1/2-1/2 (40)}) (5. b4 Nxd5 6. bxc5 (6. cxd5 Bxb4 7. Bb2 Qe7 8. Qg4 f6 9. Bd3 g6 10. Nf3 c6 11. Qh4 O-O 12. Bc4 Kg7 13. O-O d6 14. e4 Nd7 15. dxc6 bxc6 16. d4 Re8 17. Rac1 c5 {Carnstam,T (2382)-Staniszewski,J (2399) ICCF 2016 0-1 (44)}) 6... Nf6 7. Bb2 (7. d4 exd4 8. exd4 O-O 9. Bd3 b6 10. Ne2 bxc5 11. O-O d5 12. dxc5 Ba6 13. Bg5 dxc4 14. Bf5 Qxd1 15. Rfxd1 Bc8 16. Bxc8 {1/2-1/2 (16) Nitz,M (2134) -Medina,M (2298) ICCF 2017}) 7... Qe7 8. Nf3 Nc6 (8... e4 9. Nd4 Qxc5 10. Be2 d6 11. O-O Qg5 12. f3 O-O 13. Nb5 Na6 14. Bxf6 Qxf6 15. fxe4 Qe7 16. Nc3 c6 17. d4 Nc7 18. Qc2 Bd7 19. Bd3 b5 20. cxb5 {Thew,B (2086)-Jenkinson,S (2215) ICCF 2013 1/2-1/2 (41)}) 9. d4 exd4 10. Nxd4 O-O (10... Qxc5 11. Nb5 O-O 12. Bxf6 gxf6 13. Qd5 Qb4+ 14. Qd2 Qxd2+ 15. Kxd2 d6 16. Nxc7 Rb8 17. Be2 {Dimitrios,E (2125)-Groenendijk,P (2129) ICCF 2020 1/2-1/2 (39)}) 11. Nb5 Ne8 12. Be2 b6 13. cxb6 axb6 14. a4 Bb7 15. O-O Na5 16. Qc2 Qg5 {Buczinski,H (2041)-Bruce,R (2100) ICCF 2020 1/2-1/2 (84)}) 5... Nxd5 6. cxd5 (6. dxc5 Nf6 7. b4 O-O 8. Bb2 (8. Nf3 Qe7 9. Bb2 d6 10. cxd6 cxd6 11. Be2 Bf5 12. O-O a5 13. a3 Nbd7 14. Rc1 h6 15. Nd2 Rfc8 16. Qb3 Be6 17. Rfd1 axb4 18. axb4 b5 19. Qd3 bxc4 {Babychuk,V (2258)-Stewart,D ICCF 2020 1/2-1/2 (47)}) 8... d6 9. Nf3 e4 10. Bxf6 Qxf6 11. Nd4 dxc5 12. bxc5 Rd8 13. Qc1 Nc6 14. Nxc6 bxc6 15. Rb1 Bg4 16. Be2 Bxe2 17. Kxe2 Qg5 {Cox,R (1778)-Beveridge,C (2163) ICCF 2018 0-1}) 6... exd4 7. exd4 Bb4+ 8. Bd2 Bxd2+ (8... Qe7+ 9. Ne2 (9. Be2 O-O 10. Nf3 (10. Nh3 Re8 11. O-O Qxe2 12. Qxe2 Rxe2 13. Bxb4 d6 14. Rae1 Rxe1 15. Rxe1 Bd7 16. Nf4 Na6 17. Ba5 Re8 {1/2-1/2 (17) Lagergren,H (1980)-Walton,J (2042) ICCF 2019}) 10... Re8 11. a3 Bxd2+ 12. Kxd2 d6 13. Re1 Nd7 14. Bd3 Qd8 15. Rxe8+ Qxe8 16. Qc2 Nf6 17. Qxc7 Qf8 18. Re1 Nxd5 19. Qc4 Nf4 20. d5 Nxd3 {Varonen,M (1969)-Koskinen,E (2278) ICCF 2017 1/2-1/2 (45)}) 9... O-O 10. Bxb4 Qxb4+ 11. Qd2 Qe7 (11... Na6 12. a3 Qd6 13. Nc3 c6 14. Bxa6 bxa6 15. O-O cxd5 16. Rfe1 Rb8 17. b4 Bb7 18. Re3 Rbc8 19. Rae1 h6 20. Na4 Bc6 21. Nc5 Qf6 22. Rf3 Qg5 23. Qxg5 {Crevani,M (1923)-Relyea,A (2236) ICCF 2017 1/2-1/2 (37)}) 12. O-O-O d6 13. Nc3 (13. h4 Nd7 14. Nf4 Nb6 15. Bd3 Re8 16. f3 Bd7 17. Kb1 g6 18. g4 Qe3 19. Qh2 h6 20. g5 h5 21. Rhf1 a5 22. Be4 Rxe4 23. fxe4 Qxe4+ 24. Qc2 Bf5 {Hudák,D (2298)-Walton, J (2278) ICCF 2020 1/2-1/2 (29)}) 13... Nd7 14. Bd3 Nb6 15. h4 f5 16. Qg5 Qf7 17. Rhe1 Bd7 18. Re7 Qf6 19. Qxf6 Rxf6 20. b3 {Trs,J (2133)-Walton,J (2135) ICCF 2019 1/2-1/2 (26)}) 9. Qxd2 O-O 10. Bc4 (10. Bd3 d6 11. Ne2 Nd7 12. O-O ( 12. Qc2 h6 13. O-O Nb6 14. Bh7+ Kh8 15. Be4 Bd7 (15... Re8 16. Ng3 Bd7 17. Rac1 Rc8 18. b3 Qe7 19. Qd2 f5 20. Bxf5 Bxf5 21. Nxf5 Qf7 22. Ne3 Nxd5 23. g3 c6 24. Rce1 a6 25. Nc4 Qg6 26. Na5 Rxe1 27. Rxe1 {Dyda,T-Manole,G (2380) ICCF 2007 1/ 2-1/2 (33)}) 16. a4 a5 17. Bf3 g5 18. h3 f5 19. b3 h5 20. Bxh5 Nxd5 21. Bf3 Nb4 {Tudor,V (2377)-Sörenfors,P ICCF 2006 0-1 (57)}) 12... Nf6 (12... Nb6 13. Be4 f5 14. Bf3 g5 15. Nc3 Bd7 16. Be2 Qf6 17. b4 Be8 18. a4 Bf7 19. Rac1 Rac8 20. a5 Nxd5 21. a6 bxa6 22. Nxd5 Bxd5 23. Bxa6 Rce8 {Zielinski,S (2306)-Rosén,L (2370) ICCF 2015 1/2-1/2 (35)}) 13. Nf4 Re8 (13... h6 14. Rae1 c6 15. dxc6 bxc6 16. Re3 a5 17. Bc2 Re8 18. Rxe8+ Nxe8 19. Nh5 Qg5 20. Qxg5 hxg5 21. Ba4 Bd7 22. Rc1 d5 23. Ng3 Rb8 24. b3 {Kratochvíl,J (2227)-Kuitert,C (2156) ICCF 2018 1/ 2-1/2 (41)}) 14. Rae1 Bd7 15. Rxe8+ Nxe8 16. Rc1 a5 {Sherwood,A (2368) -Henderson,G (2336) ICCF 2020}) 10... d6 11. Ne2 Nd7 12. O-O Nb6 13. b3 (13. Bb3 a5 14. a4 (14. Nc3 a4 15. Bc2 Bd7 16. Rfe1 f5 17. Qf4 g5 18. Qd2 f4 19. Bd3 Kh8 20. Rac1 g4 21. Ne2 Nxd5 22. Be4 Bc6 23. Bxd5 Bxd5 24. Nxf4 Qg5 25. g3 c6 { Anreiter,A (2333)-Sörenfors,P ICCF 2005 0-1 (41)}) 14... Bf5 (14... h5 15. Qf4 h4 16. h3 Bd7 17. Rfe1 f5 18. Rac1 Rf7 19. Qe3 g5 20. Nc3 Rc8 21. Nb5 Rg7 22. Rc3 g4 23. hxg4 fxg4 24. Bc2 Kf8 25. Qf4+ Kg8 26. Re2 {Svoboda,F (2432) -Sörenfors,P (2411) ICCF 2009 1/2-1/2 (28)}) 15. Ng3 Bg6 16. Rfe1 Re8 17. Rxe8+ Qxe8 18. Rc1 (18. Nf1 Qd7 19. Ne3 f6 20. Qc3 Bf7 21. g3 f5 22. Rc1 g5 23. Nd1 Re8 24. Qxa5 Re2 25. Nc3 Rxb2 26. Bc2 Nc4 27. Qa8+ Kg7 28. Nd1 Rb4 29. Bd3 Qe7 {Allenby,E (2069)-Rada,H (2427) ICCF 2013 0-1 (34)}) 18... Qd7 19. h4 h6 20. h5 Bh7 21. Qc3 Kh8 22. Ra1 f6 23. Ne2 Qg4 24. Qd2 Qxh5 25. Nf4 Qf7 26. Rc1 { 1/2-1/2 (26) Svoboda,F (2406)-Rada,H (2387) ICCF 2015 English Opening: 1... e5-2 Nc3}) 13... Re8 14. Rae1 Bf5 15. Nc3 Nxc4 16. bxc4 {McGinnes,B (2051) -Ramsden,J (2016) ICCF 2015 1/2-1/2 (36)}) 5. d4 (5. Nc3 Nf6 6. a3 (6. d4 exd4 7. exd4 Bb4 8. Bd3 O-O 9. Nge2 d5 10. cxd5 cxd5 11. a3 Bxc3+ 12. Nxc3 Bg4 13. Qb3 Nc6 14. Be3 Na5 15. Qb4 Rc8 16. O-O Bf5 17. Be2 Re8 {Beck,G (1909) -Pradeilles,G (1767) ICCF 2019 0-1}) 6... O-O 7. Bd3 Re8 8. Ne4 Nxe4 9. Bxe4 d5 10. Bd3 e4 11. Be2 Be6 12. b4 Be7 13. h4 dxc4 14. Qc2 Bf6 15. Rb1 Qd5 16. Bb2 Bxb2 {Pye,J (1604)-Martínez Muñoz,J (1720) ICCF 2013 0-1 (29)}) 5... exd4 (5... cxd5 6. dxc5 Qa5+ 7. Bd2 Qxc5 8. cxd5 Qxd5 9. Ne2 Nc6 10. Nc3 Qa5 11. Nb5 Qb6 12. Nd6+ Kf8 13. Bc4 Nd8 14. Qa4 a5 15. Qa3 Ne7 16. Rc1 g6 17. O-O {Bieringa, R-Kemperman,H (1651) ICCF 2018 1-0}) 6. exd4 Be7 7. Nxe7 Nxe7 8. Bd3 d5 9. c5 Bf5 10. Ne2 O-O 11. O-O Nd7 12. b4 (12. Ng3 Bxd3 13. Qxd3 b6 14. Qc3 Re8 15. Bf4 Ng6 16. Bd6 Nf6 17. f3 Qd7 18. b4 h5 19. Qd3 a5 20. Nf5 b5 21. a4 bxa4 22. bxa5 Rxa5 23. h4 Rea8 {Bartsch,R (2199)-Scott,P (2161) ICCF 2017 1/2-1/2 (35)}) 12... Re8 13. a4 Bxd3 14. Qxd3 h5 15. b5 Nf8 {Maierhofer,J (2275)-Haidenbauer, D (2097) ICCF 2017 1/2-1/2 (25)}) (4. Nc3 Nf6 5. e3 Qe7 6. a3 d6 7. b4 Bb6 8. d3 O-O 9. Nf3 c6 10. Be2 d5 11. cxd5 cxd5 12. O-O Bf5 13. Bb2 Nbd7 14. Rc1 Rfc8 15. Qd2 a6 {Refalo,J (1790)-Panman,H (2331) ICCF 2011 0-1 (65)}) (4. g3 c6 5. Nc3 d5 6. cxd5 cxd5 7. Bg2 Nf6 8. d3 Bb4 9. Bd2 Bxc3 10. Bxc3 d4 11. Bb4 a5 12. Bd2 O-O 13. Nf3 Nc6 14. O-O Be6 15. a3 Kh8 {MacMillen,A (1915)-Armstrong,J (1618) ICCF 2009 1-0 (54)}) 4... c6 (4... e4 5. Ng5 e3 (5... c6 6. Nxe4 cxd5 7. Nxc5 dxc4 8. Qa4 b6 (8... Qh4 9. d3 b6 10. g3 Qe7 11. Bg2 Nc6 12. Bxc6 dxc6 13. Qxc6+ Kf8 14. Bf4 Qe8 15. Qxa8 bxc5 16. Bd6+ Ne7 17. dxc4 Be6 18. Qxa7 Bxc4 19. Rc1 Bd5 20. Rxc5 {Pernigotti,N-Martínez Muñoz,J (1720) ICCF 2013 1-0}) 9. Ne4 Kf8 10. Nd6 Nc6 11. Nxc4 Nge7 12. Nd6 Qc7 13. Nb5 Qb8 14. d3 a6 15. Nc3 b5 16. Qf4 d6 17. Bd2 {Varonen,M (1961)-Okroznik,G (1940) ICCF 2019 1-0 (51)}) (5... Qxg5 6. d4 Qd8 7. dxc5 c6 8. Ne3 Qa5+ 9. Qd2 Qxc5 10. b4 Qe7 11. Nf5 Qf8 12. Nd6+ Kd8 13. Nxe4 Na6 14. a3 Nc7 15. Nd6 Ne8 16. c5 Nxd6 17. Qxd6 {Lugovskoy, A-de Wit,W (1787) ICCF 2016 0-1}) 6. d4 (6. f4 exd2+ 7. Qxd2 c6 8. b4 cxd5 9. bxc5 h6 10. Nf3 Na6 11. cxd5 Nxc5 12. Ba3 d6 13. Bxc5 dxc5 14. d6 Qb6 15. e4 Nf6 16. Bd3 c4 17. Bc2 O-O {Lewyk,I (1931)-Muthukrishnan,S ICCF 2012 1/2-1/2 (40)}) 6... exf2+ 7. Kxf2 Be7 8. Nxe7 (8. Bf4 d6 9. e3 Nf6 10. Nxf6+ Bxf6 11. Qh5 Bxg5 12. Bxg5 Qd7 13. Bd3 Qg4 14. Qxg4 Bxg4 15. b4 f6 16. Bf4 Nc6 17. b5 Ne7 18. e4 O-O 19. h3 Bd7 {Beltins,G (1901)-Davies,S ICCF 2013 1-0 (43)}) (8. g3 Nf6 9. Nxf6+ Bxf6 10. Ne4 Nc6 11. e3 g6 12. Bd2 Bg7 13. Bg2 O-O 14. Rf1 a5 15. Rc1 d6 16. Kg1 a4 17. Qf3 Bf5 18. Qf4 {1-0 (18) Lagergren,H (1913)-Boreux, P (2209) ICCF 2017}) (8. Nf3 Nf6 9. Qc2 Nxd5 10. cxd5 d6 11. e4 O-O 12. Bc4 c6 13. Rd1 cxd5 14. Bxd5 Nc6 15. Qb3 a5 16. Bf4 Nb4 17. Bc4 Bg4 18. Rac1 d5 19. Bxd5 a4 {Fichaud,A (2415)-Murden,C (2445) ICCF 2013 0-1 (66)}) 8... Qxe7 9. e4 d6 (9... Nf6 10. e5 Ng8 11. Bd3 Nc6 12. Nf3 Nb4 13. Bb1 h6 14. Re1 c6 15. Kg1 Qe6 16. Qb3 Na6 17. d5 Qg4 18. Re4 {1-0 (18) Durán Rubíes,J-Raluy López,M (1978) ICCF 2005}) 10. Bd3 (10. h3 c5 11. d5 Nf6 12. Bd3 Nbd7 13. Nf3 Ne5 14. Nxe5 Qxe5 15. Qf3 Nd7 16. Rf1 O-O 17. Kg1 Qd4+ 18. Qe3 Qxe3+ 19. Bxe3 Ne5 20. Be2 Re8 21. Bf4 f6 {Binas,J (2021)-Keber,E (2187) ICCF 2013 1/2-1/2 (36)}) 10... Nc6 11. Bc2 Nf6 12. h3 b6 (12... Bd7 13. Re1 O-O-O 14. Kg1 h6 15. Nf3 g5 16. d5 Ne5 17. Nxe5 dxe5 18. Qe2 Rhg8 19. Qe3 Kb8 20. Qa3 Qxa3 21. bxa3 Nh5 22. Rb1 c6 23. c5 Nf4 24. d6 {Jonckheere,P (2444)-Lupynin,V (2376) ICCF 2008 1-0 (58)}) 13. Re1 O-O 14. Nf3 Bb7 15. a3 Nd7 16. Kg1 {Troger,D (2175)-Lauer,R ICCF 2012 1-0 (45)}) (4... d6 5. b4 Bb6 6. a4 c6 7. Nxb6 axb6 8. Bb2 (8. g3 Nf6 9. Bg2 O-O 10. O-O Re8 11. Bb2 h6 12. d3 Nbd7 13. Nh4 {1/2-1/2 (13) Vieito Soria,L (2026)-Keber,E (2198) ICCF 2014}) 8... Ne7 9. e3 Nd7 10. d4 O-O 11. dxe5 dxe5 12. Nxe5 Nxe5 13. Qxd8 Rxd8 14. Bxe5 b5 15. cxb5 {1-0 (15) Moran,R (1776)-Ghazarian,V ICCF 2020}) (4... Nc6 5. e3 Nf6 6. a3 Nxd5 7. cxd5 Ne7 8. Nxe5 Nxd5 9. Nxf7 Kxf7 10. Qh5+ Kf8 11. Qxd5 Qe7 12. b4 Bb6 13. Bb2 c6 14. Qh5 d5 15. Bd3 Qf7 16. Qg5 {Zvirgzdins,A-Martínez Muñoz,J (1700) ICCF 2013 1-0 (38) }) 5. Nc3 d6 (5... Qe7 6. d4 exd4 7. Nxd4 Nf6 (7... d6 8. a3 (8. g3 h6 9. Bf4 Nf6 10. Nb3 Bb4 11. Bg2 O-O 12. O-O Nh5 13. Bd2 Nf6 14. a3 Bxc3 15. Bxc3 Ne4 16. Bxe4 Qxe4 17. Qxd6 Qxc4 18. Na5 Qd5 19. Rfd1 Qxd6 {Morley,P (2282)-Cortés Olivares,R (2442) ICCF 2011 1/2-1/2}) 8... Nf6 9. Bg5 O-O 10. e3 Nbd7 11. b4 Bb6 12. Be2 Rd8 13. O-O Nf8 14. Qc2 Ng6 15. Rfd1 h6 16. Bxf6 Qxf6 17. a4 a5 18. c5 dxc5 19. bxc5 {Siefring,C (2479)-Murden,C (2434) ICCF 2012 1/2-1/2 (72)}) 8. Nf5 (8. e3 O-O 9. Be2 d5 10. cxd5 (10. O-O dxc4 11. Bxc4 Bd6 12. Qc2 g6 13. e4 Bxh2+ 14. Kxh2 Qe5+ 15. Kg1 Qxd4 16. Be2 Qe5 17. Be3 Ng4 18. Bxg4 Bxg4 19. f3 Be6 20. f4 Qh5 21. f5 Bc4 {Lockett,J-Vercauteren,N (1767) ICCF 2019 1-0 (73)}) 10... cxd5 11. O-O Nc6 12. Nxc6 bxc6 13. b3 Qe5 14. Bb2 Bd6 15. g3 Qg5 16. Rc1 Re8 17. Re1 Ng4 18. Bf3 Bf5 19. h4 Qg6 {Kostanjsek,Z (2194)-Hüser,U (2229) ICCF 2009 1-0 (56)}) 8... Qe5 (8... Qf8 9. Qc2 (9. Qd3 d6 10. a3 Nbd7 11. Qg3 Nh5 12. Qh4 Ndf6 13. e4 h6 14. Be2 g5 15. Qh3 Bxf5 16. exf5 Nf4 17. Bxf4 gxf4 18. O-O Bd4 19. Rad1 Be5 20. b4 Qg7 {Garau,B (2362)-Gatto,C (2101) ICCF 2017 1/ 2-1/2 (38)}) 9... d6 10. g3 Bxf5 11. Qxf5 Nbd7 12. Bg2 Qe7 13. O-O Qe6 14. Qxe6+ fxe6 15. Na4 Bb6 16. b4 Bc7 17. Bf4 O-O-O 18. Rfd1 e5 19. Bd2 Kb8 20. Rac1 {Williams,R (2212)-Simanowski,A (2110) ICCF 2017 1-0 (50)}) 9. Nxg7+ Kf8 10. f4 Qc7 11. Nf5 d5 12. Nd4 dxc4 13. f5 h6 14. e3 (14. e4 b5 15. Be3 Nbd7 16. Qd2 Kg8 17. Be2 Bb7 18. Rd1 Re8 19. a3 Nxe4 20. Nxe4 Rxe4 21. Bf3 Re8 22. O-O Rh7 23. Kh1 Nf6 24. Rfe1 Bf8 25. Bf4 Qc8 {Krause,C (2370)-Eldridge,M (2292) ICCF 2012 1-0 (81)}) 14... b5 15. Be2 Bb7 16. b3 Nbd7 17. bxc4 {Rivas Terán, R-Mulde,R (2023) ICCF 2014 0-1 (38)}) 6. e3 (6. d4 exd4 7. Nxd4 Nf6 (7... a5 8. a3 Nf6 9. Nb3 Bb6 10. Bf4 a4 11. Nd2 Nh5 12. Bg3 Nxg3 13. hxg3 Bf5 14. Nxa4 Ba5 15. b4 Bc7 16. e4 Bg6 17. Nc3 O-O 18. Bd3 Bb6 19. Nf3 {Tudor,V (2386)-Manole,G ICCF 2005 0-1 (39)}) (7... Nd7 8. e3 Ne5 9. Be2 Qg5 10. g3 Qe7 11. f4 Ng6 12. Bf3 Bd7 13. e4 Nf6 14. Be3 O-O 15. Qd3 Rfe8 16. Nc2 d5 17. Bxc5 Qxc5 18. O-O-O dxe4 19. Nxe4 {Taylor,W (2493)-Pinkovetsky,S (2610) ICCF 2003 1/2-1/2}) 8. a3 ( 8. e3 O-O 9. Be2 d5 (9... Re8 10. O-O d5 11. cxd5 cxd5 12. Bf3 Nc6 13. Nb3 Bb6 14. Nxd5 Nxd5 15. Bxd5 a5 16. e4 Be6 17. Be3 Bxe3 18. fxe3 Qb6 19. Nd4 Nxd4 20. Qxd4 Qxd4 21. exd4 {Albano Rivares,F (2085)-Ziechaus,L (1989) ICCF 2019 1/2-1/ 2 (31)}) 10. O-O dxc4 11. Bxc4 Nbd7 12. h3 Nb6 13. Bd3 Re8 14. Nf3 Nbd5 15. e4 Nxc3 16. bxc3 Qc7 17. e5 Nd5 18. Qc2 h6 19. a4 Be6 {Horodyskyi,O (2027)-Thiel, K (2056) ICCF 2020 1/2-1/2 (27)}) 8... d5 (8... O-O 9. Bg5 (9. g3 Nbd7 10. Bg2 Ne5 11. b3 a6 12. O-O Re8 13. Bb2 Bg4 14. Qd2 Qc7 15. Rad1 {Schereck, V-Poupinel,M (1733) ICCF 2021}) 9... h6 10. Bh4 d5 11. cxd5 cxd5 12. e3 Nc6 13. Be2 Nxd4 14. exd4 Bb6 15. O-O Qd6 16. Bg3 Qd8 17. Rc1 Ne4 18. Nxe4 dxe4 19. d5 Bd7 20. Bc4 {Roxo,A (2068)-Walton,J (2241) ICCF 2020 0-1 (61)}) 9. b4 Bb6 10. c5 Bc7 11. g3 Bg4 12. Bg2 O-O 13. O-O Re8 14. Bb2 Bh5 (14... Nbd7 15. f4 Nf8 16. Qd3 h5 17. Rae1 Qd7 18. e4 dxe4 19. Nxe4 Nxe4 {1/2-1/2 (19) Hamann,H (2227) -Modestino,M (2244) ICCF 2020}) 15. Qd2 Bg6 16. e3 Nbd7 17. f4 Qe7 {Beavan,R (1943)-Heyn,W (1971) ICCF 2020 1-0 (44)}) (6. g3 f6 (6... Nf6 7. Bg2 Be6 8. b3 O-O 9. O-O Re8 10. Bb2 Bb6 11. Na4 Bc7 12. Qc2 h6 13. Nc3 Nbd7 14. Rac1 Bb6 15. Rfd1 Rc8 16. d4 e4 17. Nd2 d5 18. Na4 {Price,D (1996)-Málek,M (2218) ICCF 2019 0-1 (57)}) 7. Bg2 Be6 8. d4 exd4 9. Nxd4 Bxc4 10. Nb3 Bb4 11. O-O Ne7 12. Qd4 d5 13. Nd2 b5 14. Nxc4 bxc4 15. e4 Qb6 16. Qd1 d4 17. Na4 Qb5 {Palomo Ribera, M-Barnett,F ICCF 2007 0-1 (29)}) 6... Qe7 (6... Bb4 7. Qb3 (7. d4 e4 (7... Nd7 8. Qc2 Ngf6 9. a3 (9. Be2 O-O 10. O-O Re8 11. a3 (11. Bd2 Ba5 (11... Nf8 12. a3 Ba5 13. b4 Bb6 14. dxe5 dxe5 15. Bd3 Bg4 16. Ng5 Re7 17. Be2 Bf5 18. Qxf5 Qxd2 19. Qd3 Qxd3 20. Bxd3 h6 21. Nge4 Nxe4 22. Nxe4 Rd7 {1/2-1/2 (22) Horodyskyi,O (2027)-Carlson,C (1764) ICCF 2020}) 12. Rad1 e4 13. Ng5 Bxc3 14. Bxc3 d5 15. cxd5 cxd5 16. Nh3 Nf8 17. Bb5 Bd7 18. Bxd7 Qxd7 19. Nf4 Rec8 20. Rc1 Rc6 21. Qd2 g5 22. Ne2 Ng6 {Lagergren,H (1916)-Jaumandreu Llopis,A (2277) ICCF 2020 0-1 (63)}) 11... Bxc3 12. Qxc3 e4 13. Nd2 Nf8 14. Re1 Ng4 15. h3 Nxf2 16. Kxf2 Qh4+ 17. g3 Qf6+ 18. Kg1 Bxh3 19. Nf1 Qg5 20. Kh2 Qh6 {Berzin,S (2105)-Dard,M (2205) ICCF 2017 0-1 (34)}) 9... Bxc3+ 10. Qxc3 e4 11. Nd2 O-O 12. a4 Re8 13. b3 Nf8 14. h3 (14. Ba3 Ng6 15. Qb4 Re6 16. Be2 h5 17. Qc3 d5 18. h3 Bd7 19. Qb2 Rc8 20. Kf1 Nh4 21. Rc1 b6 22. Rh2 Nf5 23. Kg1 h4 24. Rh1 Nh7 25. Kh2 Qc7+ { Morihama,N (2232)-Moriarty,A (2276) ICCF 2019 0-1 (48)}) 14... d5 15. Be2 Ng6 16. Ba3 a5 17. Rc1 Bd7 18. Qc2 h6 19. cxd5 {Nizky,R (2427)-Malchev,E (2417) ICCF 2017 1/2-1/2 (31)}) 8. Nd2 Nf6 (8... Bxc3 9. bxc3 Nf6 10. Ba3 b6 (10... O-O 11. Be2 b6 12. O-O Re8 13. Qc2 Bf5 14. Qd1 c5 15. Rb1 Nc6 16. Qc2 Rc8 17. Rfd1 Bg4 18. Bxg4 Nxg4 19. Nxe4 Qh4 20. h3 Nxe3 21. fxe3 Rxe4 22. Qe2 {Brião,P (1807)-Weil,T (1996) ICCF 2020 (32)}) 11. c5 (11. f3 Qe7 12. fxe4 c5 13. Bd3 Bb7 14. O-O Nxe4 15. Rf4 Nxd2 16. Qxd2 Nd7 17. Re1 f6 18. e4 O-O-O 19. Bc1 g5 20. Rf5 h5 21. Qf2 h4 22. Bc2 Rde8 {Szerlak,A (2357)-Franzén,T (2292) ICCF 2018 1/2-1/2 (36)}) 11... dxc5 12. dxc5 Nbd7 13. Qa4 b5 14. Qd4 O-O 15. c4 Qa5 16. Bb2 Rd8 17. O-O-O bxc4 18. Nxe4 Ba6 19. Bxc4 Bxc4 20. Nxf6+ {Yakovlyev,S (2331)-Pacic,A (2150) ICCF 2019 1/2-1/2 (44)}) (8... f5 9. Qa4 (9. Be2 Nf6 10. Qb3 Ba5 11. Nf1 O-O 12. Bd2 d5 13. Ng3 Kh8 14. O-O dxc4 15. Bxc4 Bc7 16. Be6 Bxe6 17. Qxe6 g6 18. Qb3 Bb6 19. Nge2 Na6 20. Nf4 Qe7 {Dziedzic,A (2177) -Pastukhov,I (2288) ICCF 2017 1/2-1/2 (45)}) 9... Bxc3 10. bxc3 Nf6 11. Ba3 O-O 12. c5 d5 13. Be2 Qc7 14. c4 Be6 15. O-O Nbd7 16. Qc2 Ng4 17. g3 Ndf6 18. cxd5 Bxd5 19. Nc4 Bxc4 20. Bxc4+ {Ljubicic,A (2477)-Parmet,D (2378) ICCF 2018 1/2-1/ 2 (35)}) 9. Qc2 (9. Be2 O-O 10. O-O Bxc3 11. bxc3 c5 12. Qc2 (12. f3 exf3 13. Bxf3 Re8 14. Qe2 Nc6 15. Qf2 Qe7 16. Ne4 Nxe4 17. Bxe4 Bg4 18. Bd3 Bh5 19. Bd2 Bg6 20. e4 Qc7 21. Rfe1 Qa5 22. a4 Rad8 {1/2-1/2 (22) Albano Rivares,F (2087) -Haidenbauer,D (2097) ICCF 2017}) 12... Re8 13. h3 Bf5 14. Rb1 b6 15. Bb2 Nc6 16. Qd1 Rc8 17. Re1 Qe7 18. Rc1 h6 19. Qa4 Nh7 20. Nf1 Bd7 {Morley,P (2327) -Dubuc,S (2354) ICCF 2012 0-1 (45)}) 9... Qe7 (9... d5 10. Qa4 Bxc3 11. bxc3 O-O 12. Be2 Re8 13. Qb3 b6 14. O-O Ba6 15. Ba3 dxc4 16. Bxc4 Bxc4 17. Qxc4 c5 18. h3 Nbd7 19. Qb3 h6 20. Rfd1 Qc7 21. c4 {Muljadi,P (2415)-Parmet,D (2380) ICCF 2020 1/2-1/2 (47)}) 10. h3 O-O 11. a3 Bxc3 12. Qxc3 Bf5 (12... a5 13. b3 Bf5 14. Be2 Nbd7 15. a4 Rfe8 16. Ba3 h5 17. Qc2 c5 18. d5 Ne5 19. Bb2 Nfd7 20. O-O-O Bg6 21. Qc3 Nb8 22. f4 exf3 23. gxf3 Na6 24. e4 {Kermer,W (2306)-Krebs,J (2290) ICCF 2016 1-0 (39)}) 13. b4 (13. Be2 d5 14. b3 Na6 15. O-O h6 16. a4 Nb4 17. a5 b6 18. Ra4 c5 19. Ba3 dxc4 20. bxc4 Nd3 21. Bxd3 exd3 22. Bb2 Qd7 23. Rfa1 cxd4 24. Qxd4 Qxd4 {Coyne,D (2333)-Krebs,J (2287) ICCF 2016 1/2-1/2}) 13... Rc8 14. Be2 Nbd7 15. a4 d5 {1/2-1/2 (15) Vötter,H (2381)-Fischer,W (2449) ICCF 2016}) (7. Qc2 Nf6 8. d3 (8. Be2 O-O 9. O-O Re8 10. d4 e4 11. Nd2 d5 12. Qb3 Bd6 13. f3 Qc7 14. cxd5 Bxh2+ 15. Kh1 Qg3 16. fxe4 Bh3 17. Bf3 Bc8 18. Be2 Bh3 19. Bf3 Bc8 {Sperhake,K (2501)-Maver,I (2390) ICCF 2018 1/2-1/2}) 8... Bxc3+ (8... O-O 9. Be2 Re8 10. a3 Ba5 11. b4 Bc7 12. O-O d5 13. cxd5 cxd5 14. Bb2 Nc6 15. Rac1 Bf5 16. Nh4 Be6 17. Na4 Nd7 18. b5 Qxh4 19. bxc6 bxc6 20. Qxc6 {Morley,P (2379)-Hof,E ICCF 2014 1/2-1/2 (28)}) 9. bxc3 O-O 10. Be2 Bg4 11. O-O Re8 12. e4 d5 13. cxd5 cxd5 14. h3 Bh5 15. exd5 Qxd5 16. Bg5 Nbd7 17. Rfe1 Rac8 18. c4 Qd6 {Morley,P (2368)-Dessaules,P (2374) ICCF 2017 1/2-1/2 (32)}) 7... Ba5 8. Be2 Nf6 9. d4 (9. O-O O-O 10. Qc2 Re8 11. d3 d5 12. a3 dxc4 13. dxc4 e4 14. Nd4 Bc7 15. Rd1 Qe7 16. b4 Qe5 17. g3 Bh3 18. b5 h5 19. Qb3 Bc8 20. bxc6 bxc6 {Weseman,G (2057)-Hechl,G (2252) ICCF 2018 0-1 (61)}) 9... e4 10. Nd2 O-O 11. O-O Re8 12. Rb1 (12. f3 exf3 13. Bxf3 Nbd7 14. Nde4 Nxe4 15. Nxe4 Bc7 16. Ng3 Nf6 17. e4 d5 18. exd5 cxd5 19. Bxd5 Nxd5 20. cxd5 Qh4 21. d6 Qxd4+ 22. Be3 Qxe3+ 23. Qxe3 Bb6 {Hempel,R (2201)-Franzén,T (2292) ICCF 2018 1/2-1/2}) 12... d5 13. f3 exf3 14. Nxf3 Bf5 15. Ra1 Bxc3 (15... Re7 16. Nh4 Be6 17. Nf5 Rc7 18. Ng3 Nbd7 19. Qa3 Rcc8 20. cxd5 cxd5 21. Bd2 a6 22. Be1 Kh8 23. Rd1 b5 24. Nxd5 Bxe1 25. Nxf6 Bxg3 26. Nxd7 Bc7 27. Ne5 {Tarasov,G (2349)-Krebs,J (2287) ICCF 2016 1/2-1/2 (41)}) 16. bxc3 Nbd7 17. Qxb7 Ne4 18. Qb4 {Berzin,S (2105) -Rodriguez,K (2343) ICCF 2017 0-1 (51)}) (6... Bg4 7. d4 Bxf3 8. gxf3 exd4 9. exd4 Bb4 10. Rg1 Bxc3+ 11. bxc3 Qe7+ 12. Qe2 Qxe2+ 13. Kxe2 g6 14. Bf4 Kd7 15. c5 f5 16. Bxd6 Nf6 17. Kd2 Re8 18. Bc4 {Iarriccio,D-Bertaggia,M ICCF 2016 1-0 (32)}) (6... Ne7 7. d4 exd4 8. exd4 Bb4 9. a3 Bxc3+ 10. bxc3 Qa5 11. Qb3 Nd7 12. Bd3 Nb6 13. O-O Qa4 14. Qb1 Nxc4 15. Re1 h6 16. Bxc4 Qxc4 17. Bf4 d5 18. Bd6 {Pope,P (1509)-Tupper,A (1713) ICCF 2016 1-0}) 7. d4 (7. Be2 e4 8. Nd4 Nf6 9. d3 d5 10. O-O (10. cxd5 cxd5 11. b3 O-O 12. O-O Rd8 13. Bb2 Bd7 14. Ndb5 Bxb5 15. Nxb5 a6 16. Nd4 Bxd4 17. Bxd4 Nc6 18. Bxf6 Qxf6 19. d4 Qd6 20. Rc1 g6 21. f3 exf3 {Benes,J (2217)-Sisák,R (2138) ICCF 2017 1/2-1/2 (29)}) 10... O-O 11. b3 (11. cxd5 cxd5 12. Na4 Bxd4 13. exd4 Nc6 14. Be3 Bf5 15. a3 Qd6 16. g3 Rae8 17. b4 exd3 18. Bxd3 Ne4 19. Rc1 Qg6 20. Nc5 Nxc5 21. Bxf5 Qxf5 22. Rxc5 Re4 {Salvado,S (2192)-Vegjeleki,A (2212) ICCF 2013 0-1 (71)}) 11... Qe5 12. cxd5 cxd5 13. Bb2 Bd6 14. g3 Bh3 15. Re1 Nbd7 16. Ndb5 Bb8 17. dxe4 dxe4 18. Rc1 Re8 {Belchev,B (2309)-Fichaud,A (2364) ICCF 2017 1/2-1/2}) 7... exd4 (7... Bb6 8. Be2 Nf6 (8... e4 9. Nd2 f5 10. b4 Nf6 11. Qa4 O-O 12. c5 dxc5 13. bxc5 Bc7 14. Rb1 Nd5 15. Qb3 Qe6 16. Bc4 Rd8 17. O-O Ba5 18. Bb2 Bxc3 19. Bxc3 b5 20. cxb6 {Kayser,P (2102)-Fernández Ballón,A (2210) ICCF 2012 1-0 (72)}) 9. O-O O-O 10. b4 Bf5 (10... h6 11. a4 e4 12. Nd2 a5 13. b5 Bf5 14. Ba3 Nbd7 15. bxc6 bxc6 16. Rb1 Rfb8 17. h3 Bg6 18. Rb2 Bh7 19. Re1 Rd8 20. Nf1 Rab8 21. Qc2 Bg6 22. Reb1 {Morley,P (2384)-Ronat,O (2325) ICCF 2014 1/2-1/2 (73)}) 11. a4 Bc7 12. a5 a6 13. Ba3 e4 14. Nd2 Nbd7 15. Nb3 Rfe8 16. b5 Rac8 17. Rc1 Nf8 18. b6 Bd8 19. Nd2 {Keskowski,T (2336)-Vegjeleki,A (2295) ICCF 2014 1/2-1/2 (33)}) ( 7... Bb4 8. Bd2 (8. Qb3 Ba5 9. Qa3 Bc7 10. Be2 e4 11. Nd2 Nf6 12. O-O O-O 13. f3 exf3 14. Nxf3 Bg4 15. h3 Bxf3 16. Bxf3 Nbd7 17. Bd2 Rfe8 18. Rae1 Qd8 19. Kh1 Rc8 {Hansen,J (2124)-Hale,A (2105) ICCF 2017 1/2-1/2 (53)}) 8... Bg4 (8... Nf6 9. Be2 O-O 10. O-O Bg4 11. h3 Bh5 12. Re1 Nbd7 13. Nh2 Bg6 14. Qb3 a5 15. Nf1 Rfb8 16. a3 Bxc3 17. Bxc3 a4 18. Qd1 Ne4 19. Nd2 Nxc3 20. bxc3 {Tunega,F (2301)-Johansen,A (2320) ICCF 2016 1/2-1/2 (25)}) 9. Qb3 Na6 10. a3 Bxc3 11. Bxc3 exd4 12. Nxd4 Nf6 13. Qc2 Ne4 14. Be2 Bd7 15. O-O Nxc3 16. Qxc3 {1/2-1/2 (16) Horodyskyi,O-Celsus,P (2010) ICCF 2019}) 8. Nxd4 Nf6 9. Be2 (9. a3 a5 ( 9... Bg4 10. f3 Be6 11. Be2 O-O 12. b4 Bb6 13. O-O Nbd7 14. Na4 Bc7 15. Qc2 Rfe8 16. e4 Nf8 17. Bb2 Bd7 18. Kh1 Ng6 19. g3 h5 20. Rad1 h4 21. g4 {Lunek,F (2292)-Azevedo,J (2285) ICCF 2017 1/2-1/2 (40)}) (9... d5 10. b4 Bb6 11. cxd5 Nxd5 12. Nxd5 cxd5 13. Bb2 O-O 14. Be2 Bd7 15. O-O Nc6 16. Qd2 a5 17. Bc3 Nxd4 18. Bxd4 Bxd4 19. Qxd4 Rfd8 20. bxa5 Rxa5 21. Qb6 {Thomas,T (2148)-Dorn,M (2151) ICCF 2020 1-0 (56)}) (9... O-O 10. Be2 d5 11. cxd5 cxd5 12. b4 Bd6 13. Bb2 Nc6 14. Ncb5 Be5 15. Nxc6 bxc6 16. Bxe5 Qxe5 17. Nd4 a5 18. Rc1 Bd7 19. Nxc6 Bxc6 20. Rxc6 axb4 21. axb4 {Evans,C (2394)-Relyea,A (2292) ICCF 2019 1/ 2-1/2 (32)}) 10. Be2 O-O 11. O-O (11. b3 d5 12. cxd5 Nxd5 13. Nxd5 cxd5 14. O-O Nc6 15. Nb5 d4 16. Nxd4 Nxd4 17. exd4 Bxd4 18. Qxd4 Qxe2 19. Bb2 Qg4 20. f4 Bf5 21. Rad1 f6 {0-1 (21) Varela,A (2063)-Serka,G (2016) ICCF 2018}) 11... Na6 ( 11... d5 12. cxd5 cxd5 13. Na4 b6 14. b3 Be6 15. Bb2 Nbd7 16. Bb5 Qd6 17. Nxe6 fxe6 18. Nxc5 bxc5 19. Rc1 Rac8 20. a4 Ne5 21. Qe1 Nc6 22. Bxf6 Rxf6 23. Bxc6 { Sitorus,Y (2353)-Jedinger,A (2269) ICCF 2017 1-0 (54)}) 12. Bd2 Ba7 13. Nb3 Nc5 14. Nxa5 Qe5 15. Nb3 Ng4 16. Bxg4 Bxg4 17. Qxg4 Nxb3 18. Rad1 f5 19. Qe2 Qe6 20. Rfe1 Rae8 {Sitorus,Y (2406)-Cvak,R (2428) ICCF 2018 1/2-1/2 (35)}) (9. b3 d5 (9... O-O 10. Bb2 Bg4 11. Be2 Bxe2 12. Ndxe2 Rd8 13. Nf4 Nbd7 14. O-O a6 15. Nce2 Ne5 16. Qc2 g6 17. h3 Bb6 18. Rfd1 Bc7 19. Ng3 Re8 20. Rac1 Nfd7 21. Nfe2 {Wölfelschneider,P (2322)-Modestino,M (2216) ICCF 2018 1-0 (60)}) 10. Bb2 O-O 11. cxd5 cxd5 12. Bb5 Nc6 13. Bxc6 bxc6 14. Nxc6 Qc7 15. Nd4 Ba6 16. Nce2 Bb4+ 17. Kf1 Qe5 18. a3 Bd6 19. Kg1 Ne4 20. Ng3 Qf6 {Wölfelschneider,P (2322)-Ress, J (2313) ICCF 2018 1/2-1/2}) (9. g3 Bg4 10. Be2 h5 11. h3 Bxe2 12. Qxe2 O-O 13. O-O Nbd7 14. Rd1 Bb4 15. Bd2 a5 16. Kg2 Nb6 17. Nf3 g6 18. Rac1 Rfe8 19. a3 Bxc3 20. Bxc3 Ne4 {Lew,T (2191)-Trasciatti,M (2227) ICCF 2018 1/2-1/2 (37)}) 9... O-O (9... Bb6 10. O-O O-O 11. b3 Re8 12. Qc2 d5 13. cxd5 cxd5 14. Ncb5 Nc6 15. Nxc6 bxc6 16. Ba3 c5 17. Rac1 Ne4 18. Bf3 Ba6 19. Bxe4 Qxe4 20. Qxe4 Rxe4 21. Nc3 {Hackenberg,T (1881)-Hild,H ICCF 2016 1/2-1/2 (48)}) 10. O-O d5 (10... Nbd7 11. b3 (11. Nf5 Qe5 12. Bg4 Nxg4 13. Qxg4 Nb6 14. e4 Nxc4 15. Bh6 Bxf5 16. exf5 d5 17. Bf4 h5 18. Qg5 f6 19. Qg3 Qxf5 20. b3 Nb2 21. Bd6 h4 22. Qf4 Qxf4 { Tanner,A (1662)-Moujan,P (1836) ICCF 2018 0-1 (32)}) 11... Nb6 (11... Ne5 12. Qc2 Bb6 13. Bb2 Nfg4 14. h3 Nh6 15. Rae1 f5 16. Qd2 Qf7 17. Bd1 a6 18. Bc2 Re8 19. Re2 Bd7 20. f4 Ng6 21. b4 Bc7 22. c5 d5 23. Na4 {Lindqvist,B (2382) -Sörenfors,P (2424) ICCF 2007 1/2-1/2 (44)}) 12. Bb2 (12. Qc2 d5 13. Bb2 dxc4 14. bxc4 Bd6 15. h3 Re8 16. Rad1 g6 17. Bd3 Nbd7 18. Rfe1 Ne5 19. Be2 Be6 20. Nxe6 Qxe6 21. Ne4 Nxe4 22. Qxe4 f6 23. Bd4 Nf7 {Darmanto,H (2198)-Johansen,A (2386) ICCF 2017 1/2-1/2 (58)}) 12... d5 13. cxd5 Nbxd5 14. Nxd5 Nxd5 15. Rc1 ( 15. Bc4 Nf6 16. Qc2 Ba3 17. Bxa3 Qxa3 18. e4 Re8 19. Rfe1 Qa5 20. h3 Bd7 21. Nf3 Qh5 22. e5 Nd5 23. Bxd5 cxd5 24. Qd3 Rad8 25. Rad1 Bf5 26. Qe3 Be4 { Sardella,A (2313)-Troger,D (2179) ICCF 2010 1-0 (40)}) 15... Re8 16. Bf3 Nf6 17. Qc2 Bd6 18. Rfd1 Bd7 19. h3 a6 20. Nf5 Bxf5 21. Qxf5 Be5 22. Bxe5 {Coyne,D (2328)-Johansen,A (2369) ICCF 2018 1/2-1/2 (31)}) (10... Rd8 11. a3 (11. b3 Bb4 (11... d5 12. cxd5 Nxd5 13. Nxd5 Rxd5 14. Bb2 Na6 15. Qc1 Nc7 16. Rd1 Rd8 17. Qc2 Bd6 18. Rac1 Bd7 19. h3 Be5 20. Bf3 a6 21. Rd2 Nb5 22. Qe4 Re8 23. Rcd1 { Alfaro de Hombre,J (2147)-Dorn,M (2122) ICCF 2015 1/2-1/2 (26)}) 12. Qd3 c5 13. Nc2 Qe5 14. Nxb4 cxb4 15. Na4 Bf5 16. Qd4 Nc6 17. Qb2 Ne4 18. Bd3 Qe6 19. Qc2 Bg6 20. f3 Nc5 21. Bxg6 Qxg6 22. Qxg6 hxg6 {Katris,A (2259)-Harabor,M (2243) ICCF 2013 1/2-1/2 (45)}) 11... a5 12. b3 d5 13. cxd5 (13. Qc2 dxc4 14. bxc4 Na6 15. Rd1 Ba7 16. Na4 Nc5 17. Nxc5 Bxc5 18. Bb2 Ne4 19. Bd3 Re8 20. a4 Bb4 21. h3 g6 22. Bxe4 Qxe4 23. Qb3 Qe7 24. Rac1 Bd7 {Lunek,F (2348)-Krebs,J (2347) ICCF 2018 1/2-1/2 (47)}) 13... Nxd5 14. Nxd5 cxd5 15. Bd3 Nc6 16. Re1 Ne5 17. Be2 Qh4 18. g3 Qe4 19. f3 Qg6 20. Bb2 Bh3 21. Rc1 Rac8 22. Qd2 {Flatz,H (2286) -Rada,H (2433) ICCF 2013 1/2-1/2 (48)}) (10... Bb4 11. Na4 Ba5 12. a3 Bc7 13. b4 Nbd7 14. Qc2 Ne5 15. Bb2 Bd7 16. Nf5 Qe6 17. e4 Qe8 18. Ng3 Qd8 19. f4 Ng6 20. Rad1 Re8 21. Bd4 Nf8 22. Kh1 {McGinnes,B (2140)-Devine,G (2132) ICCF 2016 1-0}) 11. cxd5 (11. b3 dxc4 12. Bxc4 Qd6 13. Bb2 Nbd7 14. Nf5 Qxd1 15. Rfxd1 Nb6 16. Bd3 Rd8 17. Bc2 Be6 18. Ne2 Nbd5 19. a3 Ng4 20. Bd4 Bf8 21. h3 Ngf6 22. Bb2 a5 {Wölfelschneider,P (2397)-Roques,P (2389) ICCF 2020 1/2-1/2 (26)}) 11... cxd5 12. Nb3 (12. b3 Nc6 13. Nxc6 bxc6 14. Bb2 Bd6 (14... Bd7 15. Rc1 Rac8 16. Bf3 Rfe8 17. Ne2 Bd6 18. Qd4 a5 19. h3 Qf8 20. Qa4 Ne4 21. Bxe4 Rxe4 22. Qxa5 Ra8 23. Qd2 Rxa2 24. Nc3 Bb4 25. Qd3 Bxc3 26. Qxc3 {Hudson,L (2078)-Moujan,P (2010) ICCF 2019 1-0 (48)}) 15. Rc1 Bd7 16. Qd4 (16. Bf3 Rfe8 17. Re1 Qe5 18. g3 Qg5 19. h4 Qf5 20. Bg2 Ng4 21. Rf1 Qg6 22. Ne2 a5 23. Nf4 Nxe3 24. fxe3 Qxg3 25. Rf3 Qxh4 26. Qe1 Qxe1+ 27. Rxe1 a4 {Laine,J (2147)-Koskinen,E (2278) ICCF 2017 1/2-1/2 (41)}) 16... Rfb8 17. g3 Qe6 18. Bf3 Qh3 19. Na4 Re8 20. Rfe1 Be5 21. Bg2 Bxd4 22. Bxh3 Bxb2 23. Bxd7 Bxc1 {Koelewijn,A (2320)-Ress,J (2313) ICCF 2018 1/2-1/2 (25)}) (12. Na4 Bd6 (12... Bxd4 13. exd4 h6 14. Be3 Bf5 15. Re1 Nc6 16. Rc1 Rfe8 17. Nc5 Rac8 18. Bb5 Qc7 19. Qd2 Qb6 20. Bf1 Ng4 21. Bf4 Rxe1 22. Rxe1 Nf6 23. Rc1 a6 24. f3 {Rahde,F (2113)-Dorn,M (2146) ICCF 2016 1-0 (64)}) 13. Nb5 Be5 (13... Nc6 14. Nxd6 Qxd6 15. b3 Rd8 16. Bb2 Rb8 17. Nc3 a6 18. Bf3 Ne5 19. Qd4 Nxf3+ 20. gxf3 Bh3 21. Rfc1 Nh5 22. Ne2 Qg6+ 23. Ng3 b5 24. Qh4 Nxg3 25. hxg3 {Arnold,E (1919)-Moujan,P (1948) ICCF 2017 1-0 (54)}) 14. Bd2 (14. b3 Nc6 15. Ba3 Nb4 16. Bb2 Bxb2 17. Nxb2 Bf5 18. Nd4 Bg6 19. Nd3 Bxd3 20. Bxd3 g6 21. Qe2 Rac8 22. Rac1 Nc6 23. Nxc6 Rxc6 24. Rxc6 bxc6 25. Rc1 Rc8 { Darmanto,H (2251)-Nilsson,L (2261) ICCF 2018 1/2-1/2 (75)}) (14. f4 Bd6 15. Bf3 Rd8 16. b3 Nc6 17. Nxd6 Qxd6 18. Bb2 Bf5 19. Rc1 Qe7 20. Qe2 d4 21. Rfe1 Rac8 22. exd4 Qxe2 23. Bxe2 Nxd4 24. Bc4 b5 25. Bxd4 bxc4 {Saitou,A (2219)-Tripp,G (2214) ICCF 2017 1/2-1/2 (34)}) 14... Nc6 15. Bc3 Bf5 16. Rc1 Rfe8 17. Nd4 Nxd4 18. Bxd4 a6 19. a3 (19. Nc5 Rac8 20. b4 Ne4 21. Bxe5 Qxe5 22. Bd3 Nxc5 23. Bxf5 Qxf5 24. Rxc5 Rxc5 25. bxc5 Rc8 26. Qb3 {1/2-1/2 (26) Holroyd,K (2517) -Krzyzanowski,W (2458) ICCF 2017}) 19... h6 20. Bf3 Be4 21. Be2 Bf5 22. Nc5 Rac8 23. b4 Rc7 {Colina,A (2013)-Moujan,P (2010) ICCF 2019 1/2-1/2 (35)}) 12... Bd6 13. Nxd5 (13. Nb5 Be5 14. f4 Bd6 (14... Bc7 15. Nxc7 (15. Bd2 Bb6 16. Kh1 Nc6 17. Bf3 Rd8 18. Re1 Ne4 19. Re2 Bf5 20. Be1 Rac8 21. N5d4 Bg6 22. g4 f6 23. a4 a6 24. Nf5 Bxf5 25. gxf5 Kh8 26. Nd2 Bc5 {Thomas,T (2163)-Walton,J (2135) ICCF 2019 1/2-1/2 (36)}) 15... Qxc7 16. Bd2 Nc6 (16... Qb6 17. a4 Re8 18. a5 Qd6 19. Bf3 Nc6 20. Re1 Bf5 21. Bc3 Be4 22. Qd2 h6 23. Nd4 Rac8 24. Rac1 Qd7 25. Nxc6 Rxc6 26. Bd1 Rc7 27. h3 Rec8 28. Kh2 {Thompson,B (2412)-Grammatica,A (2396) ICCF 2018 1/2-1/2 (32)}) 17. Bc3 Qe7 18. Qd3 Ne4 19. Rfc1 Nd6 20. Nd4 Nxd4 21. Qxd4 Nf5 22. Qe5 Qxe5 23. Bxe5 Nxe3 24. Rc7 Rd8 25. Bf3 d4 26. Re1 { Szerlak,A (2357)-Engelen,J (2375) ICCF 2018 1/2-1/2 (32)}) 15. Nxd6 Qxd6 16. Bf3 Re8 17. Nd4 Nc6 18. b3 a6 19. h3 Bd7 20. Qd2 (20. Re1 Ne4 21. Bb2 Rac8 22. Nxc6 bxc6 23. Rc1 Qg6 24. Bxe4 Rxe4 25. Kh2 Qd6 26. Rc4 Rxc4 27. bxc4 Be6 28. cxd5 Qxd5 29. Qxd5 Bxd5 30. a3 {1/2-1/2 (30) Serner,A (2417)-Cade,S (2410) ICCF 2019}) 20... Ne4 21. Bxe4 dxe4 22. Bb2 Rad8 23. Rfd1 Qg6 {1/2-1/2 (23) Coyne,D (2328)-Relyea,A (2287) ICCF 2018}) 13... Nxd5 14. Qxd5 Rd8 15. Qf3 Nc6 (15... Be5 16. Bd2 Bxb2 17. Ba5 Re8 18. Rab1 Be5 19. Rbc1 Nc6 20. Bc3 Bxc3 21. Rxc3 Be6 {1/2-1/2 (21) Coyne,D (2317)-Mansson,J (2219) ICCF 2017}) 16. Rd1 Be5 17. Rxd8+ Qxd8 18. Bd2 Bxb2 19. Rd1 Qe7 (19... Qg5 20. Nd4 Bd7 21. Bc4 Rf8 22. Qe2 Qc5 23. Nb3 Qe7 24. Bb4 Nxb4 25. Qxb2 Rc8 26. Qd4 Be8 27. Rc1 {1/2-1/2 (27) Benes,J (2198)-Zahour,J (2348) ICCF 2017}) 20. Na5 Nxa5 21. Bxa5 Be6 22. Ba6 Rb8 23. Bxb7 Qc5 24. Be1 Bxa2 25. Bd5 Bxd5 26. Qxd5 Qxd5 27. Rxd5 Bc3 {1/2-1/2 (27) Lundberg,C (2303)-Arnold,G (2267) ICCF 2018} (27... Bf6 28. Kf1 Kf8 29. g4 Ke8 30. Ke2 Rb2+ 31. Kf3 {1/2-1/2 (31) Lundberg,C (2289)-Roques,P (2371) ICCF 2017}) *
Embed code:
Game Url: