[Event "?"] [Site "?"] [Date "2021.04.16"] [Round "?"] [White "Ungewöhnliche Zuge nach 1 Sf3"] [Black "und King's Indian Attack"] [Result "*"] [ECO "A04"] [Annotator "Iccf GM Matjaz,Pirs"] [PlyCount "79"] {[%evp 0,79,61,12,61,-19,-31,-31,-14,-13,48,45,0,26,26,-143,-143,-127,-127, -175,-111,-102,-124,-67,7,7,-2,-2,8,14,14,0,0,0,0,0,91,47,105,113,77,77,169, 161,175,158,275,158,228,309,372,334,398,320,315,329,639,684,684,704,710,715, 762,787,784,764,808,788,852,758,868,878,978,978,1233,1255,1501,1535,1690,914, 1657,1350]} 1. Nf3 {[%CAl Gf7f5,Gb7b6,Gg7g6,Gh7h6,Ge7e6,Gd7d6,Gc7c6,Ga7a6, Gb8c6,Gg8f6,Gb7b5,Re2e4,Rd2d3,Rg2g3,Rf1g2]} (1. e4 c5 2. Nf3 d6 (2... e6 3. d3 Nc6 4. g3 g6 5. Bg2 Bg7 6. O-O Nge7 (6... d6 7. c3 Qb6 8. Nbd2 Nge7 9. a4 (9. Re1 O-O 10. a4 Qc7 11. Nc4 b6 12. Bf4 e5 13. Bd2 Na5 14. Ne3 Be6 15. Ra3 Nac6 16. Qc2 Rac8 17. Ng5 Bd7 18. f4 exf4 19. gxf4 h6 20. Nf3 Be6 {Staf,G (2140) -Stieger,H (2407) ICCF 2012 0-1 (40)}) 9... O-O 10. Nc4 Qc7 11. Bf4 Rd8 12. Qe2 e5 13. Bd2 d5 14. exd5 Nxd5 15. Ne3 Nxe3 16. Bxe3 Bf5 17. Rfd1 Qe7 18. Ng5 { Dempster,D (1773)-Stieger,H (2407) ICCF 2012 0-1 (32)}) (6... d5 7. exd5 exd5 8. Re1+ Nge7 9. Nc3 O-O 10. Bf4 h6 11. h4 Nf5 12. Qd2 Be6 13. a3 Rc8 14. Rac1 Qd7 15. Ne5 Nxe5 16. Bxe5 f6 17. Bf4 Rfd8 18. Qe2 {Wilson,G (1882)-Freire,D (1961) ICCF 2014 0-1 (44)}) 7. Nbd2 (7. c3 O-O (7... e5 8. a3 (8. Be3 d6 9. a3 (9. Nh4 O-O 10. Nd2 Be6 11. f4 exf4 12. Bxf4 h6 13. Nhf3 d5 14. Qc2 g5 15. Be3 d4 16. Bf2 Ng6 17. cxd4 cxd4 18. Rfc1 g4 19. Ne1 Rc8 20. Qa4 h5 {Cosentino,A (1937)-Souto,A (2181) ICCF 2011 0-1 (31)}) 9... O-O 10. b4 b6 11. Nbd2 a6 12. Nc4 Rb8 13. Qd2 b5 14. Nb2 Qc7 15. Rfc1 f5 16. exf5 gxf5 17. bxc5 dxc5 18. Bxc5 Na5 19. Bxe7 Qxe7 {Alonso González,C (2493)-Varela Mourín,J (2259) ICCF 2011 1/ 2 (44)}) 8... d6 9. b4 O-O (9... a6 10. Be3 b6 11. Qd2 O-O 12. Bh6 Rb8 13. Re1 Bg4 14. h3 Bxf3 15. Bxf3 Bxh6 16. Qxh6 b5 17. Nd2 a5 18. bxc5 dxc5 19. Kg2 a4 20. Be2 Kh8 21. Nf3 {Stigter,J (2326)-Thierry,R (2305) ICCF 2018 1/2 (33)}) 10. Nbd2 (10. Re1 Bg4 (10... h6 11. Nbd2 a6 (11... Be6 12. Nc4 (12. b5 Na5 13. a4 Qd7 14. d4 exd4 15. cxd4 a6 16. Rb1 axb5 17. d5 Bg4 18. Rxb5 c4 19. h3 { Kolanowski,M (2113)-Adam,C (2250) ICCF 2018 1-0 (43)}) 12... b5 13. Ne3 Qd7 14. bxc5 dxc5 15. c4 Nd4 16. Nd5 Nxd5 17. cxd5 Bg4 18. Be3 Rfc8 19. Rc1 h5 20. Rb1 Rab8 21. Rc1 a6 22. h3 Bxf3 23. Bxf3 {Rubio Doblas,R (2140)-Iriarte Gómez,E (2238) ICCF 2008 0-1 (45)}) 12. Rb1 b6 13. Bb2 b5 14. Nb3 cxb4 15. axb4 a5 16. bxa5 Be6 17. d4 Nxa5 18. Nbd2 Qc7 19. Ba3 Nc4 20. Nxc4 Bxc4 21. Bb4 exd4 22. e5 {Conterno,D (2337)-Jónsson,K (2302) ICCF 2015 1/2 (40)}) (10... b6 11. Qc2 h6 12. b5 Na5 13. Nbd2 Qc7 14. c4 a6 15. a4 f5 16. exf5 Nxf5 17. Nh4 Bb7 18. Nxf5 gxf5 19. Bb2 Qf7 20. Bc3 Bxg2 21. Kxg2 Ra7 22. Bxa5 {Steinbrück,W (2397)-Haak, G (2064) ICCF 2007 1-0 (39)}) (10... a6 11. Nbd2 Be6 (11... h6 12. Nb3 b6 13. Bb2 Rb8 14. Qc2 Bg4 15. h3 Be6 16. d4 c4 17. d5 cxb3 18. Qxb3 Bc8 19. dxc6 Be6 20. c4 b5 21. Bf1 Nxc6 22. Rac1 bxc4 23. Qe3 {Halmeenmäki,T (2409)-Röhl Montes, J ICCF 2015 1/2 (27)}) 12. Nb3 b6 13. Rb1 Qc7 14. Be3 Rad8 15. Qc2 cxb4 16. cxb4 Rc8 17. Rbc1 Qd8 18. Qb2 d5 19. Ng5 Bg4 20. h3 d4 21. hxg4 dxe3 22. fxe3 Qd7 23. Qe2 h6 24. Nf3 Rfd8 25. Bf1 Qxg4 26. Kh2 {1-0 (26) Bredenhof,B (2177) -Owens,J (2222) ICCF 2017 Unusual lines after 1 Nf3 and-King's Indian Attack}) 11. h3 Be6 12. b5 Nb8 13. a4 h6 14. c4 a6 15. Ra3 Qc8 16. Kh2 Nd7 17. Nc3 Qd8 18. Nd2 Nf6 19. Nf1 Ne8 20. Ne3 h5 21. Rb3 Bc8 {Chilson,S (2144)-Anderson,A (2154) ICCF 2018 1-0 (48)}) 10... a6 (10... h6 11. Nb3 Be6 12. bxc5 Bxb3 13. Qxb3 dxc5 14. Be3 b6 15. Rfd1 Qd7 16. a4 Rad8 17. Qa2 Na5 18. Rab1 Qg4 19. c4 Nec6 20. Qa3 Rd6 21. Rd2 Qd7 22. Rbd1 {Ziechaus,L (1880)-Budin,A (1868) ICCF 2014 0-1 (39)}) 11. Rb1 (11. Bb2 h6 12. Nb3 b6 13. Nfd2 Be6 14. Nc4 Rb8 15. Rb1 Qd7 16. Ne3 cxb4 17. axb4 d5 18. exd5 Nxd5 19. Re1 Nxe3 20. Rxe3 Ne7 21. Bf1 Rfd8 22. Ra1 Qc7 {Har-Even,A (2532)-Stephan,J (2557) ICCF 2008 0-1 (82)}) 11... h6 12. Bb2 Be6 13. Nc4 cxb4 14. axb4 d5 15. exd5 Nxd5 16. Nfd2 Qc7 17. Qe2 Rad8 18. Nb3 b6 19. Rfc1 {Giobbi,C (2172)-Pranitchi,T (2213) ICCF 2017 1/2 (30)}) 8. d4 (8. Be3 b6 9. d4 (9. Na3 d5 10. Re1 Ba6 11. Bg5 Qc7 12. e5 h6 13. Bf6 Bxf6 14. exf6 Nf5 15. h4 Kh7 16. g4 Nd6 17. Qd2 Rae8 18. Qe3 Qd8 19. d4 cxd4 20. Nxd4 Nxd4 {Fees,D (2151)-Battaglia,R (2164) ICCF 2015 1/2 (53)}) 9... cxd4 ( 9... d5 10. e5 Nf5 11. Bf4 f6 12. Re1 g5 13. exf6 Bxf6 14. Be5 cxd4 15. cxd4 Bxe5 16. Nxe5 Nfxd4 17. Nc3 Nxe5 18. Qxd4 Nc6 19. Qa4 Bd7 20. Nxd5 exd5 21. Bxd5+ {Polsterer,H (2471)-Schmelz,T (2488) ICCF 2018 1/2}) (9... d6 10. Re1 Qc7 (10... Bb7 11. Na3 cxd4 12. cxd4 Rc8 13. Qd2 Na5 14. Nh4 Qd7 15. b3 f6 16. Bh6 Bxh6 17. Qxh6 d5 18. e5 fxe5 19. dxe5 d4 20. Rad1 Bxg2 21. Nxg2 Nac6 22. Qd2 { Dam,J (1683)-Knöppel,B (2057) ICCF 2017 1/2 (30)}) 11. Na3 a6 12. Qd2 cxd4 13. Nxd4 Bb7 14. Nxc6 Bxc6 15. Nc4 Nc8 16. Bh6 Bxh6 17. Qxh6 b5 18. Ne3 Ne7 19. Rad1 Rad8 20. Qg5 f6 21. Qg4 {Pallister,S-Tanner,A (1606) ICCF 2015 1-0 (51)}) 10. Nxd4 Bb7 11. Re1 (11. Nxc6 Bxc6 12. f4 Qc7 13. Qe2 f5 14. Nd2 fxe4 15. Nxe4 Nf5 16. Bf2 e5 17. fxe5 Bxe5 18. Rae1 Rae8 19. Qd3 Nh6 {1/2 (19) Rau,M (2301) -Vasconcellos,R ICCF 2016}) (11. f4 d5 12. Nxc6 Bxc6 13. e5 Nf5 (13... Qd7 14. Re1 Rfd8 15. Bf2 Ba4 16. b3 Bc6 17. Nd2 Rac8 18. Nf3 Bb7 19. Qd2 Ba6 20. a4 Qc7 21. Rec1 Nc6 22. b4 Bc4 23. Qe1 Rd7 24. Nd2 {1-0 (24) Rubio Doblas,R (2222) -Iriarte Gómez,E (2225) ICCF 2012}) 14. Bf2 g5 15. fxg5 Bxe5 16. Qg4 Bg7 17. Nd2 Qc7 18. Rad1 Nd6 19. Nf3 Rae8 20. Rfe1 e5 21. Nh4 f5 22. gxf6 Rxf6 { Jensen,C (2366)-Jónsson,K (2331) ICCF 2017 1/2 (27)}) (11. Na3 Nxd4 12. Bxd4 Bxd4 13. Qxd4 d5 14. e5 Nc6 15. Qe3 Qc7 16. Rfe1 a6 17. Nc2 {Elwood,D-Dunn,J ICCF 2012 1/2}) 11... Rc8 12. Nxc6 dxc6 13. Nd2 Qc7 14. Qb3 c5 15. Rad1 Rcd8 16. Nc4 Nc6 17. Rxd8 Rxd8 18. Rd1 Rxd1+ 19. Qxd1 Ba6 {Evans,S (1738)-Catania,D (1720) ICCF 2014 1-0 (31)}) (8. Bf4 e5 9. Bg5 d6 10. Nbd2 h6 11. Be3 Be6 12. h4 f5 13. exf5 gxf5 14. Nb3 f4 15. Bd2 Nf5 16. gxf4 Nxh4 {0-1 (16) Nevin,M (1967) -Vachtfeidl,P ICCF 2009}) (8. Na3 d6 9. Nc2 b5 (9... e5 10. Ne3 b5 11. Nh4 b4 12. Qc2 Rb8 13. a3 bxc3 14. bxc3 f5 15. exf5 gxf5 16. f4 d5 17. fxe5 Nxe5 18. Nd1 N7g6 19. Nxg6 {Volovici,D-Holmström,J (2166) ICCF 2005 1/2}) 10. d4 cxd4 11. cxd4 Bb7 12. Bf4 Rc8 13. Qe2 a6 14. Rfd1 h6 15. h4 Qc7 16. Rac1 e5 17. dxe5 dxe5 18. Be3 f5 19. Bc5 Rcd8 {Karlsson,P-Souto,A (2163) ICCF 2006 1-0 (47)}) 8... cxd4 (8... d5 9. exd5 Nxd5 10. dxc5 Qa5 11. Nbd2 Qxc5 12. Ne4 Qe7 (12... Qa5 13. Bg5 h6 14. Bd2 Qc7 15. c4 Nde7 16. Nc3 a6 17. Qe2 Rd8 18. Be3 Nf5 19. Rad1 Nxe3 20. Qxe3 Bd7 21. Rd2 Be8 22. Rfd1 Ne7 23. Qe2 Rxd2 24. Nxd2 { Guartambel,G-Rinaldi,C (2447) ICCF 2006 1/2 (52)}) 13. Qe2 (13. c4 Nb6 14. Bg5 f6 15. Be3 Rd8 16. Qb3 e5 17. Rac1 Be6 18. Qb5 Bf7 19. h4 Qc7 {1/2 (19) Staf,G (2163)-Moyseenko,T (2180) ICCF 2013}) 13... b6 14. Re1 h6 15. g4 Rd8 16. g5 h5 17. Bd2 Qc7 18. Rad1 Bb7 19. Bc1 a6 20. Ng3 {Staf,G (2120)-Brooks,M (2236) ICCF 2011 0-1 (40)}) (8... d6 9. dxc5 (9. d5 Nb8 10. dxe6 Bxe6 11. Ng5 Bc4 12. Re1 h6 13. Na3 Ba6 14. Nf3 Nbc6 15. Be3 Kh7 16. Rc1 Rc8 17. Qd2 b5 18. c4 bxc4 19. Nxc4 Bxc4 20. Rxc4 Qc7 {Schwetlick,T (2491)-Dam,J (2028) ICCF 2019 1-0 (34) }) 9... dxc5 10. Qe2 Qc7 11. Na3 a6 12. Be3 b6 13. Rfd1 (13. Rad1 Bb7 14. Nc4 Rad8 15. a4 Nc8 16. h4 e5 17. h5 Rxd1 18. Rxd1 Rd8 19. h6 Bf6 20. Bg5 Rxd1+ 21. Qxd1 Bxg5 22. Nxg5 b5 23. Ne3 Qe7 24. axb5 axb5 {Szerszen,K (1960)-Drescher,A (1914) ICCF 2019 1-0 (40)}) 13... e5 14. Nc4 h6 15. Qf1 {1/2 (15) Senzacqua,F (2012)-Dam,J (2028) ICCF 2019}) 9. cxd4 d5 10. e5 f6 (10... Nf5 11. Nc3 Bd7 12. Bg5 (12. Bh3 a6 13. Bxf5 gxf5 14. Bg5 f6 15. exf6 Bxf6 16. Bxf6 Qxf6 17. Ne2 Kh8 18. Nf4 Rg8 19. Re1 Rac8 20. Rc1 Qh6 21. Qd2 Qf6 22. b4 Qf8 23. a3 Qd6 { Feldblioum,V (1868)-López-Neiger,M (1783) ICCF 2017 1-0 (31)}) 12... f6 13. exf6 Bxf6 14. Bxf6 Qxf6 15. Ne2 Rac8 16. Re1 g5 17. Qd2 h6 18. Rad1 Qg7 19. b3 a5 20. h3 Kh8 21. Rc1 Qf6 22. Red1 {Palmateer,C (2055)-Van Enk,S (2294) ICCF 2009 1/2 (44)}) (10... Bd7 11. Nc3 Rc8 12. Re1 f6 13. exf6 Rxf6 14. Bf4 Rf7 15. Rc1 Nf5 16. Be5 Nxe5 17. Nxe5 Bxe5 18. dxe5 Qb6 19. Qd2 Ne7 20. a3 Rcf8 21. Re2 a5 22. Rd1 {Ribelles Sala,M (1929)-Fernández Vicente,C (2338) ICCF 2005 0-1 (34)}) 11. Re1 Nf5 (11... fxe5 12. dxe5 Bd7 13. Nc3 Rc8 14. Bf4 Nf5 15. Qd2 h6 16. h4 Qe7 17. a3 Qf7 18. Nb5 a6 19. Nd6 Nxd6 20. exd6 Kh7 21. Re2 Qf5 22. Rae1 Rf7 23. Ne5 {Gagliardi,V (2137)-Colombo,F (2091) ICCF 2013 1-0 (52)}) 12. Nc3 Qb6 (12... fxe5 13. dxe5 Qb6 14. Na4 Qc7 15. Bf4 h6 16. h4 Qf7 17. Qd3 Nxh4 18. Nxh4 g5 19. Ng6 gxf4 20. Nxf8 Qxf8 21. Qc3 Qf5 22. Nc5 Bxe5 23. Qd3 Qf6 24. gxf4 {Farmer,M (1918)-Thurlow,K (2203) ICCF 2018 1/2 (35)}) 13. Na4 Qc7 14. Nc5 fxe5 15. dxe5 Nb4 16. a3 Qxc5 17. axb4 Qxb4 18. Bd2 Qxb2 {Eintalu,J-Bunk,W (2358) ICCF 2018 1/2 (31)}) (7. Re1 d6 (7... O-O 8. c3 b6 (8... d5 9. e5 (9. a4 b6 10. Na3 h6 11. h4 dxe4 12. dxe4 Qxd1 13. Rxd1 e5 14. Be3 Be6 15. Nd2 f5 16. Bh3 Bf7 17. Ndc4 f4 18. Bd2 Rad8 19. Be1 Kh7 20. f3 Bf6 {Fransson,P (2105) -Rilberg,S (2285) ICCF 2012 1-0 (63)}) 9... Bd7 (9... b5 10. d4 c4 11. Na3 a6 12. Nc2 Nf5 13. Bg5 f6 14. exf6 Bxf6 15. Bxf6 Qxf6 16. Ne3 Bd7 17. Ng4 Qg7 18. Nge5 Rae8 19. Nxc6 Bxc6 20. Qd2 Nd6 21. Ne5 {Marku,G-Azzi,R (1510) ICCF 2019 1-0 (36)}) 10. Nbd2 b6 11. Nf1 Nf5 12. Bg5 f6 13. exf6 Bxf6 14. h4 Qe7 15. Qd2 Rae8 16. Ne3 Nxe3 17. Qxe3 e5 18. Bxf6 Qxf6 19. Ng5 Qd6 20. Rac1 {Packroff,H (2250)-Macs,O (2105) ICCF 2010 1/2}) 9. d4 cxd4 10. cxd4 d5 11. e5 Bb7 12. Nc3 h6 13. g4 Na5 14. Bf4 Qd7 15. Rc1 Nec6 16. Bf1 Rfc8 17. Nb5 Nc4 18. b3 N4a5 19. Nd6 {Groenhout,R (1796)-Carter,M (1827) ICCF 2013 1-0 (38)}) (7... e5 8. c3 O-O 9. a3 d5 10. b4 dxe4 11. dxe4 Qxd1 12. Rxd1 Bg4 13. Be3 f5 14. Re1 cxb4 15. axb4 f4 16. gxf4 exf4 17. Bc5 b6 18. Bd6 Bxf3 19. Bxf3 {Rubio Doblas, R-Fernández Vicente,C (2338) ICCF 2005 1/2 (41)}) 8. c3 (8. Nc3 O-O 9. Ne2 (9. Be3 Nd4 10. Nd2 Rb8 11. a4 Nec6 12. Nb5 a6 13. Na3 e5 14. c3 Ne6 15. Nf3 f5 16. exf5 gxf5 {Barbalic,Z (2081)-Viitala,A (2091) ICCF 2019 0-1 (44)}) 9... d5 10. Nf4 d4 11. h4 e5 12. Nd5 Bg4 13. Nxe7+ Qxe7 14. Qd2 b5 15. Qg5 Qxg5 16. hxg5 Nb4 17. Re2 f5 18. Rd2 fxe4 19. Nh2 e3 {Smail,J-Anderson,C ICCF 2015 0-1 (33)}) (8. Qe2 O-O 9. c3 Rb8 10. a4 a6 11. Na3 b6 12. Nc4 d5 13. exd5 Nxd5 14. h4 h6 15. Nfe5 Nxe5 16. Nxe5 Bb7 17. Bd2 Ne7 18. Bxb7 Rxb7 19. d4 cxd4 {Gardner, A-Lythgoe,M (1943) ICCF 2009 1/2 (53)}) 8... O-O (8... e5 9. Na3 O-O 10. Be3 ( 10. Nc2 Be6 11. Ne3 b5 12. h4 Rb8 13. h5 h6 14. Nd2 Kh7 15. a4 b4 16. Ndc4 bxc3 17. bxc3 Na5 18. Nxa5 Qxa5 19. Bd2 Qa6 20. hxg6+ fxg6 21. Qe2 Nc6 {Stallinga,H (1986)-Morcillo Holgado,M (1984) ICCF 2016 1/2 (32)}) 10... b6 (10... h6 11. Qd2 Kh7 12. d4 exd4 13. cxd4 Bg4 14. d5 Bxf3 15. Bxf3 Ne5 16. Be2 f5 17. f4 Nd7 18. Bf3 fxe4 19. Bxe4 Nf6 20. Bf3 Qd7 21. Bf2 Ne8 22. Rab1 {Visser,A (1968) -Bes,R (1868) ICCF 2017 1-0 (34)}) 11. Qd2 Bg4 12. h3 Bxf3 13. Bxf3 Qd7 14. Bg2 f5 15. Rad1 Rae8 16. Nc4 b5 17. Na3 Rb8 18. Nc2 b4 19. d4 bxc3 20. bxc3 { Cruz Ramirez,E (2112)-Bäckström,B (2082) ICCF 2020 1-0 (50)}) 9. a4 (9. d4 cxd4 10. cxd4 d5 (10... Qb6 11. d5 Bxb2 12. Bxb2 Qxb2 13. dxc6 Qxa1 14. cxb7 Bxb7 15. Qb3 Bd5 16. exd5 Rab8 17. Qd3 Nxd5 18. a3 Rb6 19. Nfd2 Ne7 20. Nc4 Rbb8 21. Ncd2 d5 22. Qe3 {Wagner,A-Nita,C ICCF 2009 0-1 (54)}) (10... f5 11. Nc3 fxe4 12. Nxe4 h6 13. Bf4 e5 14. dxe5 dxe5 15. Qb3+ Kh8 16. Be3 Bg4 17. Rad1 Nd4 18. Bxd4 exd4 19. Nc5 Qb6 {Sánchez de Ybargüen Gutiérrez,L (2087)-Peschardt,S (2450) ICCF 2006 1/2}) 11. e5 f6 (11... Nf5 12. Nc3 Rb8 13. Bf4 h6 14. Bh3 g5 15. Bc1 a6 16. b3 b5 17. Bb2 f6 18. Rc1 fxe5 19. dxe5 Bb7 20. Ne2 d4 21. Bxd4 Rf7 22. Bc5 Nxe5 23. Nxe5 {Cosentino,A (1918)-Supino,D ICCF 2011 1/2 (30)}) 12. Nc3 fxe5 13. dxe5 Bd7 14. Bf4 h6 15. h4 Rc8 16. Qd2 Nf5 17. Rac1 Kh7 18. Bf1 Qa5 19. Bd3 a6 20. Kg2 h5 {Weiser,R-Risdon,A (1834) ICCF 2011 0-1 (54)}) 9... e5 10. Na3 h6 (10... Rb8 11. Nc4 Qc7 12. Qe2 b6 13. Bd2 Bb7 14. h4 f5 15. exf5 Rxf5 16. Ne3 Rff8 17. Ng5 Nd8 18. h5 h6 19. Nh3 g5 20. Bxb7 Qxb7 21. Ng4 Nf7 22. f4 {Dempster,D (1800)-Hilton,S (1650) ICCF 2016 1-0 (39)}) 11. Bd2 Be6 12. b4 a6 13. b5 Na5 14. c4 f5 15. exf5 Bxf5 16. Bc3 Bg4 17. h3 Bf5 18. Nd2 axb5 { Cabrera,M-Miranda Pantoja,A (2170) ICCF 2007 1-0 (39)}) 7... O-O 8. Re1 d6 9. c3 (9. a4 e5 10. c3 h6 11. Rb1 (11. Nc4 Be6 12. Bd2 (12. Be3 f5 13. exf5 Nxf5 14. Bd2 Qd7 15. b4 cxb4 16. cxb4 Nfd4 17. Nxd4 Nxd4 18. Be3 Bg4 19. Qb1 Nf3+ 20. Bxf3 Rxf3 21. Nd2 Rf7 22. a5 a6 23. Qb3 Be6 {Cosentino,A (1967)-Colombo,F (2091) ICCF 2013 1/2 (51)}) 12... f5 13. exf5 Bxf5 14. Qe2 Qd7 15. Nh4 Bg4 16. f3 Be6 17. f4 Bg4 18. Nf3 exf4 19. Bxf4 Rf6 20. Ne3 Bh5 21. h4 Raf8 22. Qd2 d5 {Saxena,V (2303)-Moldovan,J (2329) ICCF 2014 0-1 (54)}) 11... a6 12. Nb3 Qc7 13. d4 exd4 14. cxd4 c4 15. Na1 d5 16. Bf4 Qd8 17. exd5 Nxd5 18. Bd2 Ndb4 19. Bxb4 Nxb4 20. b3 c3 {Kilgour,D (2327)-Leal,P (2367) ICCF 2014 0-1 (51)}) (9. Nf1 e5 10. h4 h6 11. N1h2 Be6 12. Be3 Qb6 13. Qc1 Kh7 14. g4 f6 15. g5 hxg5 16. hxg5 f5 17. Bh3 d5 18. Bd2 fxe4 19. Bxe6 exf3 20. c3 Nb4 {Donadio,A-Lanzani,P (1891) ICCF 2008 0-1 (31)}) (9. h4 e5 10. c3 h6 11. Nb3 f5 12. Nh2 f4 13. h5 g5 14. g4 Be6 15. f3 b5 {0-1 (15) García Castilla,M (1967)-Kurbasov,S (2158) ICCF 2016}) 9... e5 (9... b6 10. Nc4 (10. a3 Bb7 11. Rb1 Qd7 12. Qc2 Rac8 13. b4 Rfd8 14. b5 Ne5 15. Nxe5 dxe5 16. Bf1 Qc7 17. Nc4 Rb8 18. Bg5 h6 19. Bxe7 Qxe7 20. a4 h5 21. a5 Bc8 {Vecek,M (2180)-Hamilton,D (2063) ICCF 2010 1/2 (32)}) 10... b5 11. Ne3 b4 12. Bd2 Ba6 13. Qc2 Qd7 14. Rad1 Rab8 15. Bf1 h6 16. h4 f5 {0-1 (16) Etherington,J (2114)-Kruger,M (2043) ICCF 2014}) (9... b5 10. Nb3 ( 10. e5 dxe5 11. Ne4 c4 12. dxc4 bxc4 13. Qa4 f5 14. Rd1 Qa5 15. Qxa5 Nxa5 16. Nc5 Nec6 17. Ng5 Re8 18. Rd6 e4 {Dunne,S (2090)-Fekete,A (2315) ICCF 2011 1-0 (43)}) 10... a5 11. a4 b4 12. d4 c4 13. Nbd2 d5 14. h4 Rb8 15. h5 Re8 16. Qc2 Bd7 17. Nf1 dxe4 18. Rxe4 Nd5 19. Ne3 Nxe3 20. Bxe3 e5 21. d5 {Sparnacini,S (2190)-Muzas,K (2144) ICCF 2013 1/2 (26)}) 10. Nf1 h6 11. Ne3 (11. a3 Be6 12. b4 Qd7 13. Rb1 b5 14. bxc5 dxc5 15. Be3 Rfd8 16. Qc1 Qxd3 17. N1d2 b4 18. cxb4 cxb4 19. axb4 Nd4 20. Qc5 Nec6 21. Bf1 Nxf3+ 22. Nxf3 Qxe4 {Mastronardi,D (2108)-Senzacqua,F (2136) ICCF 2013 1/2 (40)}) 11... Be6 12. a4 b6 (12... Qd7 13. Nd2 f5 14. Nd5 f4 15. Nc4 g5 16. a5 Rad8 17. Qa4 f3 18. Nxe7+ Nxe7 19. Bf1 Qxa4 20. Rxa4 Nc6 21. Ne3 Kh7 22. g4 Ne7 23. h3 Bd7 24. Ra1 {O'Keefe,M (1385) -Jones,J (1952) ICCF 2016 1/2 (80)}) 13. Nd2 d5 14. exd5 Nxd5 15. Nec4 Qc7 16. Qb3 Rab8 17. Nf3 a6 18. Qd1 b5 19. axb5 axb5 {0-1 (19) Vieito Ribelles,A (2171) -Voigt,D (2000) ICCF 2011 Unusual lines after 1 Nf3 and-King's Indian Attack}) 3. d3 Nc6 4. Nbd2 (4. g3 Nf6 (4... g6 5. Bg2 Bg7 6. O-O e5 (6... e6 7. c3 (7. Nbd2 Nge7 8. c3 O-O 9. Re1 b6 10. Nc4 d5 11. exd5 Nxd5 12. a4 Qc7 13. h4 h6 14. Bd2 Bb7 15. a5 bxa5 16. Qc1 h5 17. Bh6 Rab8 18. Bxg7 Kxg7 {Santos,M (2422) -Figlio,G (2434) ICCF 2009 1/2 (32)}) 7... Nge7 8. Be3 (8. Re1 O-O 9. Na3 Rb8 10. d4 cxd4 11. cxd4 b5 12. Nc2 Na5 13. Bf4 Bb7 14. b3 Rc8 15. Rc1 h6 16. Qd3 a6 17. Bd2 Nac6 18. a4 bxa4 19. bxa4 Rb8 {Celen,F-Cohen,D ICCF 2006 1/2 (70)}) (8. d4 cxd4 9. Nxd4 Nxd4 10. cxd4 Qb6 11. Nc3 O-O 12. Rb1 Nc6 13. Be3 Na5 14. d5 Qa6 15. dxe6 Bxe6 16. Bd4 Rad8 17. Bxg7 Kxg7 18. Qa4 Nc4 19. Qxa6 bxa6 { Cosentino,A-Pohjosmäki,R (2068) ICCF 2008 1/2 (46)}) 8... O-O (8... Rb8 9. Re1 O-O 10. Nbd2 b5 11. d4 cxd4 12. cxd4 a5 13. Qe2 e5 14. dxe5 dxe5 15. Red1 Nd4 16. Nxd4 exd4 17. Nb3 Nc6 18. Bf4 {Bonoldi,F (1949)-Nixon,R (1800) ICCF 2012 1-0 (37)}) 9. Qd2 Re8 10. Na3 b6 11. Bh6 Bh8 12. Qf4 d5 13. Rad1 e5 14. Qc1 a6 15. Ng5 Ra7 16. f4 f6 17. Nf3 exf4 18. gxf4 {Vodicka,I-Recky,N (2175) ICCF 2008 1/2 (72)}) (6... Nf6 7. c3 (7. h3 O-O 8. Re1 Be6 9. c3 Rc8 10. a4 h6 11. Be3 Qd7 12. a5 Bxh3 13. Bxh3 Qxh3 14. Nh2 Ne5 15. Qe2 Nfg4 16. Nxg4 Nxg4 17. Qf1 Qh2# {0-1 (17) Williams,R-Weber,K (2287) ICCF 2010}) 7... O-O (7... Bg4 8. h3 Bxf3 9. Qxf3 Rb8 10. Qe2 b5 11. f4 Qc7 12. Be3 O-O 13. d4 cxd4 14. cxd4 e6 15. Nc3 b4 16. Na4 Qa5 17. b3 Rfc8 18. Rac1 Ne7 19. Bf2 {Bröker,C (2422)-De Bari,V (2344) ICCF 2007 1/2 (46)}) 8. Re1 Bg4 9. Nbd2 Qd7 10. Nc4 b5 11. Ne3 Bh3 12. Bxh3 Qxh3 13. Nd5 h6 14. d4 g5 15. a4 b4 16. Nxf6+ Bxf6 17. d5 bxc3 18. dxc6 {Verde,P (2154)-Grifoll Miró,J (2280) ICCF 2006 1/2 (30)}) (6... Bg4 7. Qd2 (7. h3 Bd7 8. Nbd2 Nf6 9. c3 e6 10. Nc4 Qc7 11. Re1 O-O 12. Nxd6 Qxd6 13. e5 Qc7 14. exf6 Bxf6 15. Bf4 Qc8 16. Ne5 Rb8 17. Nxd7 Qxd7 18. Bxb8 {Stone,D (1699)-Segreto,T (1679) ICCF 2019 1-0 (46)}) 7... Nf6 8. Ne1 Qd7 9. Qe3 Bh3 10. Nd2 Bxg2 11. Kxg2 Ng4 12. Qe2 Nd4 13. Qd1 f5 14. h3 Ne5 15. c3 Ndc6 16. Qe2 fxe4 17. Nxe4 d5 18. Nxc5 {Armstrong,J (1610)-Gilbert,R (1781) ICCF 2016 0-1 (39)}) (6... Qb6 7. Nc3 e6 8. Nd2 Nge7 9. Nc4 Qd8 10. Nb5 O-O 11. Nbxd6 a6 12. a4 Na5 13. Bg5 Nxc4 14. Nxc4 h6 15. Bf4 {1-0 (15) Vieito Ribelles,A (1922) -LeSavouroux,H ICCF 2008}) 7. c3 (7. a4 Nge7 8. Nc3 O-O 9. Nd2 Be6 10. Nc4 Qd7 11. Nd5 f5 12. c3 Rae8 13. a5 h6 14. Qa4 f4 15. gxf4 Bh3 16. f5 Bxg2 17. Kxg2 gxf5 18. f3 Ng6 {Dumitrescu,F-Grasis,J (2046) ICCF 2007 1-0 (49)}) (7. Nbd2 Nge7 8. c4 O-O 9. h3 a6 10. a3 Rb8 11. Nb3 b5 12. Bd2 bxc4 13. dxc4 Qb6 14. Be3 Qxb3 15. Qxd6 Be6 16. Ng5 Rfd8 17. Qxc5 Bxc4 18. Rfc1 Bd3 {Lamy,O-Borwell,A (2282) ICCF 2015 0-1 (28)}) (7. Re1 Nge7 8. Nc3 O-O 9. Bd2 a6 10. Nd5 Nxd5 11. exd5 Ne7 12. c4 f5 13. Ng5 Rb8 14. Rb1 h6 15. Ne6 Bxe6 16. dxe6 b5 17. Bd5 Qc8 18. b3 Re8 {Carrión Lava,J (1988)-Eraclides,G (1987) ICCF 2013 1-0 (39)}) 7... Nge7 (7... h6 8. Be3 Nge7 9. Nh4 g5 10. Nf3 f5 11. exf5 Nxf5 12. Qb3 Qe7 13. Nfd2 Be6 14. Bd5 Bxd5 15. Qxd5 O-O-O 16. Na3 Rhf8 17. Nc2 Qf7 18. Qxf7 Rxf7 19. Rab1 {Wettstein,K (2200)-Popov,E (2281) ICCF 2007 0-1}) 8. a3 (8. Be3 O-O 9. Qd2 (9. Na3 Bg4 (9... b6 10. Qd2 d5 11. exd5 Nxd5 12. Bh6 Ba6 13. Bxg7 Kxg7 14. Rfe1 f6 15. d4 exd4 16. cxd4 c4 17. Nb1 Ncb4 18. Nc3 Bb7 19. Re2 Qd7 {Wuttke,J (2250)-Berza,S (2361) ICCF 2010 1-0 (61)}) 10. h3 Be6 11. Nc2 h6 12. Qd2 Kh7 13. d4 cxd4 14. cxd4 f5 15. exf5 gxf5 16. dxe5 dxe5 17. Rad1 Qe8 18. Bc5 Qf7 19. Ne3 Rfd8 20. Qc2 Rac8 {Rosenhöfer,T (2301)-McDermott,F (2401) ICCF 2020 1/ 2 (26)}) 9... f5 10. Na3 (10. Bh6 f4 11. Bxg7 Kxg7 12. Na3 h6 13. d4 g5 14. dxe5 dxe5 15. Rfd1 Be6 16. Qe2 Qe8 17. h3 Qf7 18. g4 a6 19. b3 Rad8 20. Nc4 Rxd1+ 21. Rxd1 Bxc4 {Norman,N (2004)-Sladek,V (2218) ICCF 2008 1/2 (38)}) 10... Rb8 11. Ng5 b5 12. f4 h6 13. Nh3 b4 14. cxb4 Rxb4 15. Nc4 fxe4 16. a3 Rb3 17. dxe4 Be6 18. Rac1 Nd4 19. Bxd4 cxd4 {Cottarelli,F (2164)-García Rodríguez,I (2098) ICCF 2006 1/2 (26)}) (8. a4 O-O 9. Na3 Be6 10. Ng5 Bd7 11. Re1 h6 12. Nf3 Kh7 13. Bd2 f5 14. b4 Be6 15. Rc1 Qd7 16. b5 Nd8 17. Qe2 f4 18. d4 Bg4 19. d5 g5 {Gardner,A-Evans,R (2322) ICCF 2011 1-0 (46)}) (8. Nbd2 O-O 9. a4 (9. h4 h6 10. Nc4 Be6 11. Ne3 Qd7 12. Kh2 Kh8 13. Ng1 d5 14. Bh3 d4 15. Ng2 Bxh3 16. Nxh3 dxc3 17. bxc3 Rad8 18. Ba3 b6 19. Ne1 f5 {0-1 (19) Clews,W (1911)-Guizar, C (2115) ICCF 2011}) (9. a3 Be6 (9... a5 10. Re1 b5 11. Nf1 a4 (11... Rb8 12. h4 f5 13. b4 cxb4 14. cxb4 a4 15. Bg5 h6 16. Bxe7 Nxe7 17. Rc1 Be6 18. Qd2 Qd7 19. Rc3 Rfc8 20. Rec1 Rxc3 21. Rxc3 Rf8 22. Rc2 Bb3 23. Rc1 {Mehlhorn,U (2376) -Garau,B (2346) ICCF 2019 1/2 (40)}) 12. Be3 Be6 13. d4 Bb3 14. Qd2 cxd4 15. cxd4 f5 16. exf5 gxf5 17. dxe5 dxe5 18. Qxd8 Raxd8 19. N3d2 Bf7 20. Rab1 Rfe8 21. b3 {Mehlhorn,U (2376)-Bunk,W (2387) ICCF 2019 1/2 (43)}) 10. Ng5 Bd7 11. b4 h6 12. Ngf3 a6 13. Bb2 Be6 14. Re1 (14. Nc4 b5 15. Ne3 f5 16. Nd2 Rc8 17. Nd5 f4 18. Rb1 Rf7 19. c4 Bd7 20. bxc5 dxc5 21. Rc1 Nd4 22. Bxd4 cxd4 23. Qb3 bxc4 24. Rxc4 Rxc4 25. Qxc4 Bb5 {Whittaker,I (2122)-Chambers,D (2192) ICCF 2019 1-0 (34)}) 14... b5 15. Nb3 (15. Nh4 a5 16. bxa5 Qxa5 17. Qc2 Ra7 18. Nf1 Rc8 19. Qe2 Qb6 20. Ne3 c4 21. Nd5 Bxd5 22. exd5 Na5 23. g4 Bf6 24. Nf3 Nxd5 25. Qe4 Nf4 26. d4 Nd3 {Badger,J (1759)-Stewart,D ICCF 2020 0-1 (57)}) (15. Rb1 Qd7 16. d4 exd4 17. cxd4 cxd4 18. Nb3 Bxb3 19. Qxb3 a5 20. Bf1 axb4 21. Bxb5 bxa3 22. Bxa3 Rfb8 23. Qd3 Qd8 24. h4 Rc8 25. Bc1 Ne5 26. Nxe5 dxe5 {Azevedo,J (2311) -Stubbs,M (2217) ICCF 2019 1/2 (30)}) 15... Qb6 16. bxc5 (16. Bc1 c4 17. dxc4 bxc4 18. Nbd2 a5 19. Bb2 f5 20. Qe2 fxe4 21. Nxe4 d5 22. Nc5 Bg4 23. h3 Bf5 24. Qd2 e4 25. Nd4 Nxd4 26. cxd4 axb4 27. axb4 Rxa1 {Wuttke,J (2247)-Engelen,J (2324) ICCF 2011 1/2 (38)}) 16... dxc5 {Wuttke,J (2250)-Foulds,E ICCF 2010 1/2 (36)}) 9... h6 10. Nc4 (10. Rb1 a6 11. Nc4 f5 12. b4 cxb4 13. cxb4 Be6 14. exf5 Nxf5 15. b5 axb5 16. axb5 Ncd4 17. Nxd4 Nxd4 18. Be3 e4 19. dxe4 Bxc4 20. Bxd4 Bxd4 21. Qxd4 Bxf1 {Caliskan,I (2170)-Satici,A (2329) ICCF 2012 0-1}) 10... Be6 11. Nfd2 Qd7 12. Qe2 (12. Ne3 f5 13. f4 exf4 14. gxf4 Rae8 15. Nd5 fxe4 16. dxe4 Bg4 17. Nf3 Nxd5 18. Qxd5+ Be6 19. Qd3 Na5 20. Nd2 b6 21. Qg3 Kh7 22. h4 Bg4 23. Bf3 {Fortin,M (1655)-Lonnee,G (1722) ICCF 2013 1/2 (32)}) 12... f5 13. a5 f4 14. Re1 g5 15. b3 g4 16. f3 h5 17. Ra2 Ng6 18. Rf1 Rf7 19. Qe1 Bh6 { Bosch Llufriu,J-Kostin,V (2395) ICCF 2007 0-1 (26)}) (8. Re1 O-O 9. Nbd2 h6 10. Nf1 Be6 11. h3 Qd7 12. Kh2 f5 13. exf5 gxf5 14. Ng1 d5 15. f4 e4 16. Nd2 Rad8 17. Nb3 Qd6 18. d4 cxd4 19. cxd4 b6 {Mackenzie,R (1711)-Pope,P (1860) ICCF 2019 0-1 (29)}) (8. Nh4 O-O 9. Nd2 Kh8 10. Qe2 f6 11. Nc4 Be6 12. Nf3 b6 13. Rd1 Rc8 14. Ne3 Qd7 15. b3 d5 16. c4 dxe4 17. dxe4 Nd4 18. Nxd4 exd4 19. f4 f5 {Leggett,P-Schöpe,H (2245) ICCF 2016 0-1 (47)}) 8... O-O (8... a5 9. a4 O-O 10. Na3 h6 11. Nd2 Be6 12. Ndc4 d5 13. exd5 Nxd5 (13... Bxd5 14. Bh3 f5 15. f4 Rf6 16. fxe5 Re6 17. Be3 Nxe5 18. Nxe5 Bxe5 19. Bxc5 Qd7 20. Re1 {Alejos,P (2117) -Pitkänen,J (2214) ICCF 2015 1-0 (58)}) 14. Re1 Re8 15. Bd2 Re7 16. Qc1 Qf8 17. Be3 Ree8 18. Nb5 Red8 19. f4 Nxe3 20. Qxe3 {Arcenegui Rodrigo,J (2249)-Tarrío Ocaña,F (2326) ICCF 2008 1/2 (47)}) 9. b4 h6 (9... a6 10. Nbd2 (10. Be3 b6 ( 10... f5 11. bxc5 f4 12. cxd6 fxe3 13. dxe7 exf2+ 14. Rxf2 Qxe7 15. Nbd2 Bh6 16. Kh1 Be6 17. d4 exd4 18. cxd4 Nxd4 19. Rf1 Nxf3 20. Nxf3 Bc4 21. Re1 b5 22. Qd4 {Almeida,J-Shitrit,K (2154) ICCF 2008 0-1 (32)}) 11. Qd2 (11. Nbd2 Be6 12. Ng5 Bc8 13. Nc4 Rb8 14. Qe2 h6 15. Nf3 Bg4 16. Rfe1 d5 17. exd5 Nxd5 18. bxc5 Nxc3 19. Qc2 bxc5 20. Bxc5 {Zaugg,B (1964)-Baydashkin,A ICCF 2015 1/2 (31)}) 11... Kh8 12. Bh6 f5 13. Bxg7+ Kxg7 14. exf5 Bxf5 15. Nh4 Be6 16. Qe2 Nd5 17. f4 Qd7 18. f5 gxf5 19. Nxf5+ Bxf5 20. Bxd5 Bg4 21. Qe3 Rxf1+ {Rosenhöfer,T (2307)-Garau,B (2343) ICCF 2020 1/2 (29)}) (10. bxc5 dxc5 11. Be3 b6 12. a4 h6 13. Na3 f5 14. Qb3+ Kh7 15. exf5 Bxf5 16. Nc4 Rb8 17. Rfd1 Be6 18. Qc2 Bg4 19. Nh4 Bxd1 20. Qxd1 Rf6 21. Be4 Qd7 {Srinath,T-Zink,D (2265) ICCF 2020 1/2 (39)}) 10... h6 11. Rb1 (11. Re1 Be6 12. Nf1 cxb4 13. axb4 d5 14. Rb1 d4 15. c4 b5 16. N1d2 Qd7 17. Ba3 Rfb8 18. Qc2 a5 19. cxb5 Rxb5 20. Qa4 Qb7 21. bxa5 Raxa5 22. Rxb5 Rxb5 {Rubio Doblas,R-Pérez Negro,J ICCF 2005 1-0 (31)}) 11... Be6 12. Bb2 b5 13. Re1 Qb6 14. Bf1 Rfd8 15. Qe2 Rac8 (15... Rab8 16. Rec1 Rb7 17. Ba1 Qa7 18. bxc5 dxc5 19. Qe3 Rc7 20. Bb2 Kh7 21. a4 bxa4 22. Ba3 Na5 23. Be2 Bb3 24. Re1 h5 25. Ng5+ Kg8 26. Ngf3 Qb6 27. Bd1 {Rubio Doblas,R (2222)-Olano Aizpurua, J (2144) ICCF 2012 1/2 (40)}) 16. Rec1 Qa7 17. bxc5 dxc5 18. a4 g5 19. axb5 axb5 20. Ra1 Qd7 21. Qe3 {Rubio Doblas,R (2222)-García Ramírez,C (2196) ICCF 2012 1/2 (42)}) (9... b6 10. Bb2 (10. Nbd2 h6 11. b5 Na5 12. c4 Nb7 13. Bb2 f5 14. exf5 gxf5 15. Nh4 Rb8 16. f4 Be6 17. Qe2 Qd7 18. Rae1 Rbe8 19. fxe5 d5 20. cxd5 Nxd5 21. Nc4 Qxb5 {Zaugg,B (1857)-Harman,K (1806) ICCF 2014 1-0 (27)}) ( 10. b5 Na5 11. c4 h6 12. Bd2 Nb7 13. Nc3 Be6 14. Rc1 Qd7 15. a4 f5 16. Nd5 f4 17. Nh4 Kh7 18. gxf4 exf4 19. Nxf4 Rxf4 20. Bxf4 g5 21. Bxg5 hxg5 {Rubio Doblas,R (2140)-Marco i Molina,R ICCF 2008 1/2 (50)}) 10... a6 (10... h6 11. Nbd2 (11. b5 Nb8 12. c4 Nd7 13. Nc3 Nf6 14. a4 Bd7 15. Nd2 a6 16. Qb3 Ne8 17. f4 {Halmeenmäki,T (2405)-Dearnley,A (2335) ICCF 2012 1/2 (40)}) 11... Be6 12. Re1 Qd7 13. b5 Na5 14. c4 g5 15. Bc3 Ng6 16. Nf1 a6 17. a4 g4 18. N3d2 h5 19. Ne3 h4 20. Nf5 axb5 21. axb5 h3 22. Bh1 {Ackley,P (2073)-Price,D (1925) ICCF 2020 1-0 (56)}) (10... Rb8 11. Nbd2 b5 12. Qe2 Bg4 13. h3 Be6 14. Ng5 Bc8 15. Rfd1 a5 16. bxc5 dxc5 17. h4 h6 18. Ngf3 Bg4 19. Nf1 f5 20. exf5 gxf5 21. Rd2 Qc7 22. a4 {Larsen,N (1903)-Ramsden,J (2067) ICCF 2013 1-0 (31)}) 11. Nbd2 h6 12. Qc2 Be6 13. Rfb1 Rb8 14. Bc1 Qc7 15. Ne1 Rfd8 16. Nc4 d5 17. exd5 Nxd5 18. bxc5 bxc5 19. Bd2 Rb5 20. Ne3 Nxe3 21. Bxe3 {Rubio Doblas,R (2253)-Cañizares Cuadra,P (2300) ICCF 2013 1/2 (27)}) 10. b5 (10. Nbd2 Be6 11. Rb1 cxb4 12. axb4 b5 13. Bb2 a5 14. bxa5 Nxa5 (14... Qxa5 15. d4 exd4 16. cxd4 Ba2 17. Rc1 Qb6 18. Re1 Rfd8 19. Nb3 Ra4 20. Ra1 Bxb3 21. Qxb3 Nxd4 22. Nxd4 Bxd4 23. Rxa4 bxa4 24. Qxb6 Bxb6 25. Ra1 Ra8 {1/2 (25) Rubio Doblas,R (2209)-Lara Ruiz,J (2372) ICCF 2011}) 15. Qe2 Qd7 16. Rfe1 Nec6 17. d4 Ba2 18. Rbd1 Nc4 19. Nxc4 Bxc4 20. Qc2 exd4 21. Nxd4 Rfe8 {Schreiner,M (2138)-Galkowski,L (2373) ICCF 2007 0-1 (35)}) 10... Na5 11. c4 f5 12. Nc3 f4 13. Rb1 (13. h3 g5 14. Nd2 Be6 15. Rb1 Qd7 16. Kh2 g4 17. hxg4 Bxg4 18. Bf3 h5 19. Rh1 Rf6 20. Bxg4 hxg4 21. Kg1 Raf8 22. Rh4 Rg6 23. Nf1 Bf6 24. Rh5 b6 {Fees,D (2127)-Velde,M (2141) ICCF 2015 1/2 (42)}) (13. Bd2 b6 14. Ne2 Be6 15. a4 Qd7 16. Bxa5 bxa5 17. Qd2 g5 18. Ne1 g4 19. Bh1 h5 20. Nc2 Qd8 21. Nc3 {Jones,J (1908)-Buss,M (2197) ICCF 2019 0-1 (37) }) 13... b6 14. Re1 Be6 15. h3 Qd7 16. Kh2 g5 17. g4 Bf7 18. Bb2 Nb7 19. a4 Rfb8 20. Nd5 Bg6 21. Qc2 Nd8 22. a5 bxa5 23. Bc3 a6 24. bxa6 Rxb1 25. Qxb1 Nxd5 26. exd5 Rxa6 27. Nd2 Qb7 28. Qa2 a4 29. Rb1 Qa7 30. Be4 Be8 31. Bf5 Bf6 32. Qb2 Qc7 33. Ne4 Be7 34. Bd2 Nf7 35. Nc3 Ra8 36. Ra1 Bd8 37. Ra2 Kg7 38. Qa1 Qa7 {1/2 (38) Fees,D (2127)-de la Rosa Solórzano,J (2202) ICCF 2015 Unusual lines after 1 Nf3 and-King's Indian Attack}) 5. Bg2 e5 6. O-O Be7 7. Nc3 O-O 8. Nd5 Ng4 9. h3 Nf6 10. Ne3 Be6 11. Ng5 Nd7 12. Nxe6 fxe6 13. c3 Nb6 14. a4 Na5 15. Rb1 c4 {Brotherton,T (1752)-Smyth,S (1838) ICCF 2009 1-0 (37)}) 4... g6 5. g3 Bg7 6. Bg2 e5 (6... e6 7. O-O Nge7 8. c3 O-O 9. Qb3 Rb8 10. a4 a6 11. Rd1 b5 12. axb5 axb5 13. d4 b4 14. Qc4 bxc3 15. bxc3 cxd4 16. cxd4 Bb7 17. Ba3 Qd7 18. e5 {Pooley,M (1889)-Cohen,D ICCF 2006 1-0 (42)}) 7. O-O Nge7 8. Nc4 (8. Re1 O-O 9. Nf1 h6 10. c3 (10. h4 f5 11. h5 f4 12. g4 Bxg4 13. N1h2 Bxh5 14. Bh3 g5 15. Be6+ Bf7 16. Bg4 Ng6 17. Bd2 Qe7 18. Bh3 Be6 {Carrington,A (1621)-Harman,K (1806) ICCF 2013 0-1}) 10... Be6 11. h4 Qd7 12. a3 f5 13. exf5 Rxf5 14. b4 Raf8 15. Qe2 Nd5 16. Bb2 cxb4 17. axb4 a6 18. N1h2 R5f7 19. d4 Nb6 {Nicholls,M (2055)-Bringsken,P (2075) ICCF 2009 1-0 (58)}) 8... O-O 9. a4 (9. c3 h6 10. Ne3 Be6 11. Nh4 Qd7 12. f4 exf4 13. gxf4 f5 14. Qf3 Kh7 15. Bd2 Rg8 16. Qg3 Raf8 17. Nd5 b5 {Rhodes,J-Coryell,K ICCF 2008 1/2 (62)}) 9... h6 10. c3 Be6 11. Qe2 (11. Rb1 f5 12. Qe2 a6 13. exf5 Nxf5 14. Ne3 Nfe7 15. Bd2 Qc7 16. b3 d5 17. h3 Rae8 18. Rfe1 Qd7 19. Ng4 Bxg4 20. hxg4 Qxg4 21. Be3 b6 22. a5 Nxa5 23. b4 cxb4 24. Bxb6 Nac6 25. cxb4 Rb8 26. Bc5 Rb7 27. Rb3 {1/2 (27) Sánchez de Ybargüen Gutiérrez,L (2087)-Florea,M (2160) ICCF 2006 Unusual lines after 1 Nf3 and-King's Indian Attack}) (11. Ne3 d5 12. c4 dxe4 13. dxe4 Qxd1 14. Rxd1 Na5 15. Nd5 Nec6 16. Be3 Nd4 17. Nc7 Rad8 18. Nxe6 fxe6 19. Nd2 b6 20. Bh3 Kf7 21. Bf1 g5 22. h3 Kg6 {Holzer,J (2059)-Marten,G (1899) ICCF 2017 1/2 (47)}) (11. Nfd2 f5 12. Re1 (12. a5 f4 13. h3 Rb8 14. Qa4 b6 15. axb6 axb6 16. Qb5 Qc7 17. Nf3 Nc8 18. Ncd2 Rb7 19. Kh2 Rd8 20. Re1 g5 {Arnold,H (2294)-Dorer,M (2235) ICCF 2007 1/2}) (12. f4 exf4 13. Rxf4 d5 14. exd5 Bxd5 15. Nb3 b6 16. Rf1 Qd7 17. Bxd5+ Nxd5 18. a5 Rad8 19. axb6 axb6 20. Qf3 g5 21. Qg2 Rf6 22. Bd2 f4 23. Kh1 fxg3 {Satici,A (2354)-Baier,G (2291) ICCF 2006 1/2 (41)}) 12... f4 13. Rb1 Qd7 14. b4 cxb4 15. cxb4 Nd4 16. Bb2 Bg4 17. Bf3 Nxf3+ 18. Nxf3 fxg3 19. fxg3 Rxf3 20. Qc2 Bh3 21. Ne3 Raf8 22. b5 Kh7 {Huguet Nicolini,E (2013)-Dorer,M (2146) ICCF 2006 0-1 (30)}) (11. Re1 f5 12. exf5 Nxf5 13. Ne3 Nfe7 14. Bd2 d5 15. h3 Qd7 16. Ng4 Bxg4 17. hxg4 Qxg4 18. Be3 b6 19. a5 Rad8 20. axb6 axb6 21. Nh2 Qf5 22. Qe2 Kh7 {Montgomery,R (2262)-Legemaat,G (2345) ICCF 2016 0-1 (25)}) 11... f5 (11... Qd7 12. Bd2 Rae8 13. a5 f5 14. Rfe1 f4 15. Qd1 g5 16. b4 g4 17. b5 Nd8 18. Nh4 Nf7 19. Qa4 Bf6 20. b6 Qxa4 21. Rxa4 Bxh4 22. gxh4 a6 { Cosentino,A (1915)-Spitéri,J (2136) ICCF 2010 0-1 (54)}) 12. b3 Qd7 13. Bb2 Rf7 14. Bh3 Raf8 15. Nfd2 b6 16. Rae1 d5 17. exd5 Nxd5 18. Bg2 Re7 19. Rc1 Rd8 20. Rfd1 Bf7 21. Nf1 Nf6 22. Nfe3 f4 23. Nc2 Bd5 24. Be4 Kh7 25. Ne1 Nxe4 26. dxe4 Bxc4 27. bxc4 Qc8 28. Rxd8 Qxd8 29. Rd1 Qe8 30. Rd5 Na5 31. Qd1 Nxc4 32. Bc1 Rf7 33. Kg2 Qe6 34. Nf3 Na5 35. Bb2 Nc4 36. Bc1 Bf6 37. Qd3 Na5 38. Rd6 Qc4 39. Qd5 Qxd5 40. Rxd5 Re7 41. gxf4 exf4 42. e5 Bg7 43. Bxf4 g5 44. Bg3 Nc4 45. h4 g4 46. Nh2 Nxe5 47. Bxe5 Bxe5 48. Nxg4 Bxc3 49. h5 Rc7 50. Kf3 c4 51. Ne3 Ba5 52. Ke2 Kg8 53. f4 c3 54. Kd1 Re7 55. Rd8+ Kf7 56. Nd5 Re1+ 57. Kc2 Re2+ 58. Kc1 Re1+ 59. Kc2 Re2+ 60. Kc1 {1/2 (60) Nicholls,M (2055)-Kopsa,P ICCF 2009 Unusual lines after 1 Nf3 and-King's Indian Attack}) 1... f5 (1... c5 2. a4 (2. g3 Nc6 (2... g6 3. Bg2 Bg7 (3... d6 4. h3 Bg7 5. O-O Bd7 6. Kh2 Nf6 7. d3 O-O 8. e4 Nc6 9. c3 Qc8 10. Nbd2 b5 11. d4 c4 12. Re1 e5 13. d5 Na5 14. b3 Nb7 15. Ba3 {Stone,D (1699)-Roberts,R (1529) ICCF 2014 1-0 (43)}) 4. c3 (4. d3 d5 (4... Nf6 5. O-O d6 6. Bg5 O-O 7. d4 Qb6 8. Nc3 Qxb2 9. Na4 Qa3 10. Qd2 Qxa4 11. Bh6 Ne4 12. Qg5 Nxg5 13. Bxg5 f6 14. Be3 Qxc2 15. dxc5 dxc5 16. Rac1 {Anderson,L (1343)-Carswell,D ICCF 2014 0-1}) 5. c3 Nf6 6. Bf4 Nc6 7. Qd2 Bg4 8. Bh6 O-O 9. h3 Be6 10. Qg5 Qb6 11. b3 a5 12. Nbd2 a4 13. O-O axb3 14. axb3 Rfe8 15. Rab1 Bh8 {Giessing,K (1450)-Marrocco,D (1861) ICCF 2017 1-0 (26)}) 4... Nf6 5. c4 d5 6. cxd5 Nxd5 7. Nc3 Nc6 8. Qb3 Ndb4 9. O-O O-O 10. d3 Be6 11. Qd1 c4 12. a3 Nd5 13. Ng5 cxd3 14. Nxe6 {Moeykens,C (2059)-Repanic,F (2076) ICCF 2010 0-1}) (2... d6 3. Bg2 (3. d3 Nc6 4. Bg2 Nf6 5. O-O h6 6. c4 Bf5 7. Nc3 e6 8. Re1 d5 9. cxd5 exd5 10. Bf4 Be7 11. Qc2 d4 12. Nb5 O-O 13. Qd2 a6 14. Na3 Nd5 {Williams, B-Hidalgo Zayas,P ICCF 2019 0-1 (36)}) 3... Nc6 (3... Nh6 4. d3 Nf5 5. c3 g6 6. e4 Ng7 7. e5 Nf5 8. Nbd2 Na6 9. O-O Bg7 10. exd6 Qxd6 11. Nc4 Qc7 12. Bf4 e5 13. Ncxe5 O-O 14. Nxg6 Nd6 15. Nxf8 {García Velayos,C (1810)-Rodríguez Padilla, N ICCF 2013 1-0 (32)}) (3... Bh3 4. Kf1 Bxg2+ 5. Kxg2 Nf6 6. d4 g6 7. dxc5 Bg7 8. cxd6 exd6 9. Nc3 O-O 10. Re1 Qb6 11. Kg1 {1-0 (11) Chernov,I (2140) -Baydashkin,A (2309) ICCF 2018}) 4. O-O Nf6 5. Nc3 e5 6. e4 g6 7. d3 Bg7 8. Bd2 O-O 9. Qc1 Be6 10. Bh6 Nd4 11. Bxg7 Kxg7 12. Qd2 Qb6 13. b3 Qa5 14. a4 { Grigoryan,D-Loik,G (2005) ICCF 2018 0-1}) (2... b5 3. e4 (3. Bg2 Bb7 4. b3 Nf6 5. Bb2 e6 6. O-O Be7 7. d4 cxd4 8. Nxd4 Bxg2 9. Kxg2 a6 10. Nd2 O-O 11. c4 bxc4 12. Nxc4 d5 13. Ne5 Qd6 14. Nd3 Nbd7 {Bernholdsson,S-Oinonen,A (1856) ICCF 2012 1-0 (46)}) 3... Bb7 4. Bxb5 Bxe4 5. O-O Nc6 6. Ng5 Bg6 7. Bxc6 dxc6 8. d3 e6 9. Na3 Nf6 10. Nc4 Be7 11. Nf3 Nd7 12. Qe2 O-O 13. Re1 Bf6 14. Be3 { Gabrielian,A-Starodubtsev,V (2236) ICCF 2017 1/2 (42)}) (2... b6 3. e4 (3. Bg2 Nf6 4. O-O Nc6 5. d4 cxd4 6. Nxd4 e5 7. Nxc6 Qc7 8. Nxe5 Rb8 9. Nd3 d5 10. Bf4 Bd6 11. Bxd6 Qxd6 12. Nf4 O-O 13. Nxd5 Nxd5 14. Qxd5 Qxd5 {García Velayos, C-Santamaría Quintana,I (1408) ICCF 2012 1-0 (25)}) 3... Bb7 4. Nc3 g6 5. Bg2 Bg7 6. d3 Nc6 7. O-O d6 8. Bd2 Qd7 9. Rb1 Nf6 10. a3 O-O 11. Na2 d5 12. exd5 Nxd5 13. Nc3 e6 14. Re1 {Saint Louis,P (1669)-Carter,M (1778) ICCF 2013 1/2 (47)}) 3. d4 (3. Bg2 g6 (3... e5 4. d3 d5 5. c3 Nf6 6. Qa4 Bd7 7. Qb3 b6 8. Bg5 Be6 9. Bxf6 Qxf6 10. Qa4 Bd7 11. Qc2 Be7 12. h4 d4 13. c4 O-O 14. a3 Rac8 15. b3 {Schaffert III,W (1567)-Wright,D (1651) ICCF 2013 1/2 (55)}) (3... e6 4. Nc3 d5 5. d4 Nxd4 6. Nxd4 cxd4 7. Qxd4 Bd7 8. Bf4 Qb6 9. Qxb6 axb6 10. O-O b5 11. Be5 b4 12. Nd1 Nf6 13. Bxf6 gxf6 14. Ne3 f5 15. Kh1 {Traylor,B-Slossar,J ICCF 2008 0-1 (49)}) 4. c3 (4. d3 Bg7 5. c3 d6 (5... e5 6. e4 Nge7 7. Be3 d6 (7... b6 8. Nbd2 d5 9. exd5 Nxd5 10. O-O Nxe3 11. fxe3 O-O 12. Qc2 Rb8 13. Rad1 f5 14. Ne1 Qc7 15. Qb3+ Kh8 16. Nc2 b5 17. Qd5 Ne7 18. Qf3 Be6 19. d4 {Maseras Rozas,G (1901)-Vasconcellos,R ICCF 2015 0-1 (30)}) 8. d4 exd4 9. cxd4 Qb6 10. Qd2 cxd4 11. Bf4 d5 12. exd5 Nxd5 13. Bd6 Ne3 14. fxe3 dxe3 15. Qe2 Qxb2 16. Qxe3+ Be6 {0-1 (16) Grech,G-Romualdi,R ICCF 2006}) 6. Bg5 h6 7. Be3 Nf6 8. Nbd2 O-O 9. Qc1 Ng4 10. Ne4 f5 11. Ned2 Nxe3 12. fxe3 e5 13. Nh4 Ne7 14. c4 g5 15. Nhf3 f4 {Traylor,B-Price,B ICCF 2008 0-1 (34)}) 4... Bg7 (4... e5 5. d4 cxd4 6. cxd4 e4 7. Ne5 d5 8. Qa4 Nge7 9. Nc3 Bg7 10. Bg5 f6 11. Nxc6 bxc6 12. Bf4 g5 13. Bd2 O-O 14. O-O Bd7 15. Qc2 Ng6 16. Na4 {Barbalic,Z (2016)-Rashitov,D (2334) ICCF 2018 1-0 (28)}) 5. d4 cxd4 6. cxd4 d5 (6... Qb6 7. d5 Nd4 8. Nc3 Nxf3+ 9. exf3 Nf6 10. O-O O-O 11. Re1 Re8 12. a4 d6 13. Be3 Qd8 14. a5 Nd7 15. Bf1 Nc5 16. Ra3 Bxc3 17. Rxc3 Qxa5 18. Ra3 {Bachler,K (2290)-Feldborg,B (2216) ICCF 2012 1-0 (27)}) 7. Nc3 e6 (7... Nf6 8. Ne5 Qb6 9. Nxc6 bxc6 10. O-O O-O 11. Na4 Qb4 12. b3 Bf5 13. Bb2 Nd7 14. Rc1 Rfc8 15. Bc3 Qd6 16. Qd2 h5 17. Rfd1 Re8 18. Bb4 Qf6 19. Bc3 {Dawson,A (2049)-Mackintosh,I (2405) ICCF 2016 1/2 (44) }) (7... Bg4 8. O-O e6 9. Ne5 Nxe5 10. dxe5 h5 11. h3 Bf5 12. g4 hxg4 13. hxg4 Qh4 14. Qa4+ Kf8 15. f3 Bxe5 16. Bf4 Bf6 17. gxf5 Ne7 18. Bd6 Bd4+ 19. Qxd4 { Chavez,C-Pavlícek,M (1933) ICCF 2007 0-1}) 8. O-O Nge7 9. b3 O-O 10. e3 (10. Qd2 Nf5 11. Ba3 Re8 12. e3 b6 13. Rfc1 Ba6 14. Nxd5 Ncxd4 15. Nxd4 Nxd4 16. exd4 exd5 17. Re1 {Fernández,J (2218)-Rocca,H (2444) ICCF 2010 1/2 (40)}) 10... b6 11. Ba3 Ba6 12. Re1 Re8 13. Rc1 Rc8 14. e4 dxe4 {Sánchez de Ybargüen Gutiérrez,L (2243)-Cañamas Soler,J (2293) ICCF 2016 1/2 (34)}) (3. b3 d5 4. Bb2 f6 5. d4 cxd4 6. Nxd4 e5 7. Nxc6 bxc6 8. Bg2 Qa5+ 9. Nd2 Be6 10. a3 Qb6 11. O-O h5 12. c4 h4 13. b4 Rd8 14. Qa4 Kf7 {Barclay,A (2100)-Kulick,N (2292) ICCF 2017 1/2 (36)}) 3... cxd4 4. Nxd4 g6 (4... Nxd4 5. Qxd4 d6 6. Bg2 Nf6 7. O-O e5 8. Qd3 Be7 9. c4 Rb8 10. Nc3 O-O 11. Be3 b6 12. Rfd1 Bb7 13. Bg5 Bxg2 14. Kxg2 h6 15. Bxf6 Bxf6 16. Qxd6 {Kristinsson,Ö-Hunt,J (1490) ICCF 2014 1-0}) 5. Bg2 Bg7 (5... Qb6 6. Nb3 Bg7 7. O-O Nf6 8. Nc3 O-O 9. e4 d6 10. Be3 Qa6 11. h3 Be6 12. Nd5 Bxd5 13. exd5 Ne5 14. Re1 Nc4 15. Bd4 Rac8 16. Rxe7 Qb5 17. a4 { Altanoch,G (2072)-Theron,P ICCF 2008 1-0}) 6. Nb3 (6. Nxc6 bxc6 7. c4 (7. O-O Rb8 8. c4 (8. Nd2 Nf6 (8... Qc7 9. Rb1 Nf6 10. c4 O-O 11. Qc2 Qa5 12. a3 d5 13. b4 Qa6 14. Bb2 Bf5 15. e4 dxe4 16. Nxe4 Nxe4 17. Bxe4 Bxb2 18. Rxb2 Be6 19. Qc3 Bxc4 20. Rd1 {Nagel,H (2086)-Bussom,A ICCF 2017 0-1 (48)}) 9. e4 Qc7 10. c4 O-O 11. Qc2 d6 12. Rb1 c5 13. b3 Ng4 14. h3 Ne5 15. Bb2 f5 16. f4 Nc6 17. Bxg7 Kxg7 18. Rbe1 Nd4 19. Qd3 e5 {Bos,H (2478)-Mukherjee,A (2513) ICCF 2005 1/2 (33)}) ( 8. c3 Qc7 9. e4 d6 10. Re1 Nf6 11. Nd2 O-O 12. Nf3 Rd8 13. h4 Ng4 14. Nh2 Ne5 15. Qc2 c5 16. Nf3 Ng4 17. Nh2 a5 18. Nxg4 Bxg4 19. f3 Be6 {Jaszczowski,Z (1686)-Bobel,P (2321) ICCF 2020 0-1 (44)}) 8... Rxb2 9. Bxb2 Bxb2 10. Nd2 Bxa1 11. Qxa1 f6 12. Qc3 Qc7 13. Qe3 d6 14. Rb1 Kf7 15. Qf3 Bd7 16. c5 d5 17. Qb3 Nh6 18. e4 Rd8 {Barbalic,Z (1977)-Kadonas,K (2197) ICCF 2017 1/2 (45)}) 7... Rb8 8. Nc3 Nf6 9. O-O O-O 10. b3 (10. Qc2 Qc7 11. Bd2 d6 12. e4 Nd7 13. Rac1 Nc5 14. Rfe1 a5 15. Nd1 f5 16. Bc3 Bh6 17. Bd2 f4 18. Kh1 a4 19. f3 Qb6 20. g4 Bg7 21. Bc3 Bxc3 {Bubb,D (1873)-Williams,J (2010) ICCF 2017 0-1 (50)}) 10... d6 11. Bxc6 Bh3 12. Bg2 Ne4 13. Nxe4 Bxg2 14. Kxg2 Bxa1 15. Bh6 Bg7 16. Bxg7 Kxg7 17. Nc3 Qa5 {Lichte,M (2197)-Vasconcellos,R ICCF 2015 0-1 (56)}) (6. Be3 Nf6 7. h3 O-O 8. O-O d5 9. Nd2 e5 10. Nxc6 bxc6 11. c3 Qc7 12. b4 d4 13. cxd4 Nd5 14. Bxd5 cxd5 15. Nb3 Bxh3 16. Re1 e4 17. Qd2 Qd7 {Doye,P (2322)-Jones,I (2197) ICCF 2015 1/2 (26)}) (6. c3 Nf6 7. O-O O-O 8. Nd2 d5 9. Nxc6 (9. N2f3 e5 10. Nxc6 bxc6 11. Nxe5 Bb7 12. Re1 c5 13. e3 Re8 14. Ng4 Ne4 15. h3 h5 16. Nh2 Qc7 17. Rb1 Rad8 18. Bxe4 dxe4 19. Qe2 Re6 20. Nf1 Red6 {Davies,J (1786)-Soar,T ICCF 2017 1/2 (56)}) 9... bxc6 10. Qa4 Qc7 11. e4 Rd8 12. exd5 cxd5 13. Nb3 a5 14. Be3 Ng4 15. Bc5 Ne5 16. Bd4 Nc4 17. Nc1 e5 {Petersen,M-Vrana,L (2153) ICCF 2008 0-1 (30)}) 6... d6 (6... a5 7. a4 Nf6 8. O-O O-O 9. Na3 d6 10. Nb5 Bf5 11. c3 Qd7 12. Bg5 Rfd8 13. Re1 h6 14. Bxf6 Bxf6 15. N3d4 Nxd4 16. Nxd4 Bg4 17. f3 Bh3 18. e4 {Doye,P (2309)-Enescu,C (2353) ICCF 2013 1/2}) 7. O-O (7. e4 Nf6 8. c3 Bg4 9. f3 Bd7 10. Na3 O-O 11. O-O a6 12. Be3 b5 13. Nd4 Ne5 14. Qd2 Qc7 15. Rac1 Rab8 16. b3 d5 17. f4 Neg4 18. e5 Ne4 {Rulfs,E (2268)-Papenfuß,I (2480) ICCF 2019 1/2 (37)}) (7. Nc3 Nf6 8. h3 O-O 9. e4 Rb8 10. Qe2 Be6 11. O-O a5 12. a4 Qc8 13. Kh2 Nb4 14. Re1 Bc4 15. Qd1 b6 16. Bf4 e5 17. Bg5 h6 18. Bxf6 Bxf6 { Williams,T (2447)-Rösch M.,H (2409) ICCF 2018 1/2 (40)}) (7. c3 f5 8. a4 Nf6 9. a5 O-O 10. O-O Rb8 11. Nd4 Bd7 12. a6 Nxd4 13. Qxd4 b6 14. Qb4 Qe8 15. c4 Bc6 16. Bxc6 Qxc6 17. Nc3 Rbc8 18. Ra4 Qd7 {Popov,E (2303)-Rosén,L (2349) ICCF 2016 1/2 (27)}) 7... Be6 (7... Nf6 8. c3 (8. Nc3 O-O 9. h3 Be6 10. e4 Bc4 11. Re1 Rc8 12. a4 Nd7 13. Be3 Ba6 14. Qb1 Bxc3 15. bxc3 Nde5 16. Qa2 Nc4 17. Bh6 Re8 18. Nd4 Qa5 19. Qb3 Qh5 {Nagel,H (2086)-Harvey,D (2317) ICCF 2017 0-1 (41)} ) 8... Bd7 9. e4 h5 10. Bg5 Nh7 11. Be3 h4 12. g4 h3 13. Bf3 Qc8 14. Be2 Ne5 15. f3 f5 16. gxf5 gxf5 17. N1d2 fxe4 18. Nxe4 Nf6 19. Nd4 {Dawson,A (2113) -Mackintosh,I (2366) ICCF 2017 1/2 (67)}) 8. Nc3 Nf6 9. Nd4 Bd7 10. Bg5 (10. Nxc6 bxc6 11. e4 O-O 12. h3 Qc8 13. b3 Bxh3 14. Be3 h5 15. f3 Bxg2 16. Kxg2 Ng4 17. Qd2 Nxe3+ 18. Qxe3 Qa6 19. Rfd1 Rac8 20. a4 Qa5 21. Ne2 Bxa1 {Ylönen, O-Lagergren,H (2010) ICCF 2009 0-1 (27)}) 10... O-O 11. Qd2 Rb8 12. Nf3 Rc8 13. Rfd1 Bf5 {Doye,P (2317)-Yarmolyuk,Y (2320) ICCF 2013 1/2 (45)}) (2. Na3 Nf6 ( 2... Nc6 3. e4 Nf6 4. e5 Ng4 5. Qe2 f6 6. Nc4 b5 7. h3 Nh6 8. Ne3 fxe5 9. Ng4 d6 10. Nxh6 gxh6 11. Qxb5 Bd7 12. Qc4 e6 13. d3 Nd4 14. Nxd4 {Green,M (2063) -Boveda gay,A ICCF 2018 0-1 (99)}) 3. e3 Nc6 (3... d5 4. d4 Nc6 5. c4 e6 6. Nc2 Qc7 7. cxd5 exd5 8. dxc5 Bxc5 9. a3 O-O 10. b4 Bd6 11. Bb2 a5 12. Be2 axb4 13. O-O b3 14. Ncd4 Nxd4 15. Bxd4 {Green,M (2050)-Cuccumini,V (2038) ICCF 2017 1/2} ) 4. Bb5 d5 5. d3 g6 6. Bxc6+ bxc6 7. b3 Nd7 8. Bb2 f6 9. O-O e5 10. Nb1 Bd6 11. c4 Bb7 12. Bc1 Nf8 13. Bb2 Ne6 {Green,M (2094)-Turczynski,M (2151) ICCF 2018 0-1 (80)}) (2. d3 Nc6 (2... f5 3. e4 Nf6 4. exf5 d5 5. Nh4 e6 6. g4 exf5 7. g5 Qe7+ 8. Be2 Ng4 9. O-O Qd6 10. f4 Be7 11. Ng2 Nc6 12. h3 h5 13. Nc3 a6 14. Na4 {Legrand,P-Green,M (2085) ICCF 2015 0-1}) 3. c4 Nf6 4. Nc3 e6 5. Bf4 Be7 6. d4 cxd4 7. Nxd4 O-O 8. e3 d5 9. Be2 Qb6 10. Nxc6 bxc6 11. Qc2 dxc4 12. Bxc4 Nd5 13. O-O Nxf4 {Hjaltason,G (2271)-Ísólfsson,E (2447) ICCF 2016 1/2 (44) }) (2. e3 g6 (2... Nf6 3. Be2 d5 4. O-O Nc6 5. d3 e5 6. Nc3 Be7 7. h3 O-O 8. a3 Be6 9. b3 h6 10. Bb2 Qc7 11. Nb5 Qb6 12. Nc3 d4 13. Na4 Qc7 14. Bc1 {Harra,H (1733)-Svaralová,M (2126) ICCF 2012 0-1 (39)}) (2... a6 3. Nc3 Nc6 4. Bd3 d6 5. O-O Nf6 6. b3 Bg4 7. h3 Bxf3 8. Qxf3 Ne5 9. Qxb7 e6 10. Bxa6 Rb8 11. Bb5+ Nfd7 12. Qa6 Be7 13. a4 O-O 14. Bb2 {Brodie,P-Hunt,J (1579) ICCF 2013 1-0 (40)}) 3. Bd3 (3. Be2 Bg7 4. O-O e5 5. Nc3 Ne7 6. d3 O-O 7. b3 e4 8. dxe4 Bxc3 9. Rb1 d5 10. exd5 Qxd5 11. Bb2 Bxb2 12. Rxb2 Nbc6 13. Qxd5 Nxd5 14. Rd1 Nc3 {Paccione,P (1781)-Raimondo,A ICCF 2009 0-1}) 3... d5 4. O-O c4 5. Be2 Bg7 6. c3 Nf6 7. b3 Qc7 8. Ba3 O-O 9. Nd4 Re8 10. Bf3 Bd7 11. g3 e6 12. d3 e5 13. Ne2 a6 {Horacek, C-Anderson,L (1806) ICCF 2013 0-1 (31)}) (2. Nc3 c4 (2... g6 3. d4 cxd4 4. Nxd4 Bg7 5. g3 Nc6 6. Nxc6 bxc6 7. Bg2 Nf6 8. O-O O-O 9. e4 Qc7 10. Rb1 d6 11. b3 Rb8 12. Qe2 Bg4 13. f3 Bc8 14. Bb2 {Vandermeulen,B (2586)-Serner,A (2559) ICCF 2007 1-0 (73)}) 3. Ne5 d5 4. Nxf7 Kxf7 5. e3 e6 6. d4 Nf6 7. Qf3 Bd6 8. g4 Rf8 9. g5 Be7 10. gxf6 Bxf6 11. Qh5+ Kg8 12. Rg1 Bd7 13. b3 Be8 {Ratzel,W-Leber,D ICCF 2011 0-1 (28)}) (2. c3 d5 3. e3 Nf6 4. h3 Bf5 5. d3 Nc6 6. Nh4 Bd7 7. b4 cxb4 8. cxb4 Nxb4 9. a3 Nc6 10. Ke2 e5 11. g4 g5 12. Nf3 h5 13. Nxg5 hxg4 { Cottrell,J-Mondry,M (2229) ICCF 2016 0-1 (26)}) (2. b3 Nc6 (2... d6 3. Bb2 (3. e3 Nc6 4. Bb5 e5 5. Bxc6+ bxc6 6. d3 Qc7 7. Bb2 g6 8. Nbd2 Bg7 9. O-O Bg4 10. h3 Bd7 11. Qe2 O-O-O 12. Nc4 Re8 13. Bc3 Nh6 14. Ba5 Qb8 {Smail,J-Disque,P ICCF 2014 1-0 (38)}) (3. c4 Nc6 4. e3 Nf6 5. Be2 e5 6. Nc3 Be7 7. O-O O-O 8. Bb2 Re8 9. d4 cxd4 10. exd4 e4 11. Ng5 Bf5 12. d5 Nb4 13. Qd2 a5 14. a3 Nd3 { Barclay,A (1913)-Lagergren,H (2012) ICCF 2014 1-0 (44)}) (3. d4 cxd4 4. Nxd4 e5 5. Nf3 Nf6 6. e3 Nc6 7. Bb2 Qa5+ 8. Nbd2 Be7 9. c4 O-O 10. a3 e4 11. Nd4 Nxd4 12. Bxd4 Re8 13. Qc2 Bd7 14. g3 Qh5 {Baumgartner,U (2354)-Rösch M.,H (2409) ICCF 2018 1/2 (39)}) 3... e5 (3... Nf6 4. c4 e6 5. g3 e5 6. d3 Be7 7. Bg2 O-O 8. O-O Nc6 9. Nc3 h6 10. a3 b6 11. Nxe5 dxe5 12. Bxc6 Bh3 13. Bxa8 Qxa8 14. e4 Bxf1 15. Kxf1 {Coope,D (1837)-Del Cid Guevara,A ICCF 2019 1-0}) 4. g3 (4. d3 Nc6 5. c4 Be7 6. e3 Nf6 7. Be2 O-O 8. O-O h6 9. h3 Be6 10. Nc3 d5 11. e4 d4 { 1/2 (11) Fister,B (2311)-Hervet,G (2301) ICCF 2012}) 4... g6 (4... Nc6 5. Bg2 ( 5. d3 g6 6. Bg2 Bg7 7. O-O Nge7 8. Na3 O-O 9. c3 d5 10. Nc2 b6 11. Rb1 Qc7 12. a3 Rd8 13. Qc1 b5 14. Qe3 Na5 15. b4 Nb3 16. Bc1 Nf5 {Boukadoum,M-Stone,G ICCF 2011 0-1 (30)}) 5... g6 6. O-O Bg7 7. c4 Nge7 8. Nc3 O-O 9. Ne1 (9. d3 Bg4 10. h3 Be6 11. Ng5 Bc8 12. a3 a6 13. Nge4 Be6 14. Ng5 Bd7 15. Nge4 f5 16. Nd2 Rb8 17. e3 b5 18. Nd5 Be6 19. Rb1 Re8 20. Qc2 Bf7 {Wolf,W (2308)-Werner,J (2401) ICCF 2016 1/2 (43)}) 9... Be6 10. Nd5 Qd7 11. d3 Bh3 12. Bxh3 Qxh3 13. e3 Qd7 14. a3 f5 15. Nf3 Rae8 16. Nd2 {Arias Santana,M-Rösch M.,H (2409) ICCF 2018 1/ 2 (50)}) 5. c4 Bg7 6. Bg2 f5 7. d3 Nf6 8. O-O O-O 9. Nc3 Nc6 10. a3 a5 11. e3 Bd7 12. Nd2 Rb8 13. Nb5 Qe7 14. Bc3 {Owens,J (2113)-Bredenhof,B (2237) ICCF 2016 1/2 (38)}) (2... e6 3. c4 Nc6 4. e4 d6 5. d3 Qf6 6. e5 Nxe5 7. Bb2 Nxf3+ 8. Qxf3 Qxb2 {0-1 (8) Cain,L-Brown,D ICCF 2015}) 3. Bb2 d6 (3... d5 4. d3 Nf6 5. Nbd2 e6 6. g3 Bd6 7. Bg2 O-O 8. O-O d4 9. c3 Bd7 10. cxd4 cxd4 11. Nxd4 Nxd4 12. Bxd4 Bc6 13. Bxc6 bxc6 14. Rc1 Qc7 15. Nc4 {Batres Bianchi,L (1778)-Acosta, E (1871) ICCF 2010 1-0 (34)}) (3... Nf6 4. g3 d5 5. d4 Qa5+ 6. Bc3 Qc7 7. Nbd2 cxd4 8. Nxd4 Nxd4 9. Bxd4 e5 10. Bb2 Bc5 11. e3 O-O 12. Bg2 Bg4 13. Qc1 Rac8 14. O-O Qe7 15. c4 {Chollet,M-Overton,D (2409) ICCF 2012 0-1}) 4. d4 (4. e3 e5 (4... Nf6 5. Be2 g6 6. O-O Bg7 7. Nc3 O-O 8. d4 cxd4 9. Nxd4 e5 10. Ndb5 d5 11. a4 a6 12. Na3 Be6 13. Rc1 d4 14. Na2 dxe3 15. fxe3 Nd5 16. Qd2 {Hjorth,J (2022) -Larsen,A (2022) ICCF 2011 1/2 (51)}) 5. d3 (5. c4 g6 (5... f5 6. Nc3 Nf6 7. d4 cxd4 8. exd4 Be7 9. d5 Nb8 10. Be2 O-O 11. O-O Na6 12. a3 Nc5 13. b4 Nce4 14. Nxe4 Nxe4 15. c5 dxc5 16. Bc4 Bd6 17. bxc5 {Minchev,V (2336)-Dimitrov,D (2372) ICCF 2010 1/2 (54)}) 6. Nc3 Bg7 7. d3 Nge7 8. Be2 O-O 9. O-O d5 (9... a6 10. Qd2 h6 11. h4 Be6 12. Rfe1 Nf5 13. Ne4 Nxh4 14. Nxh4 Qxh4 15. Nxd6 Qe7 16. Ne4 Rad8 17. Nc3 Qc7 18. Rad1 Rd7 19. Qc2 b6 20. a3 Rfd8 21. Rd2 {Deneuville,C (2268)-LeSavouroux,H (1859) ICCF 2009 1-0 (28)}) 10. cxd5 Nxd5 11. Qc2 b6 12. a3 Bb7 13. Nd2 Nc7 14. Rfd1 Qe7 15. Nc4 Rfd8 16. Bf3 Rd7 {Minchev,V (2336) -Fischer,W (2519) ICCF 2010 0-1 (50)}) (5. d4 cxd4 6. exd4 e4 7. Nfd2 d5 8. c4 Nf6 9. Be2 (9. cxd5 Qxd5 10. Bc4 Qg5 {0-1 (10) Horacek,D-Taylor,B ICCF 2010}) 9... dxc4 10. O-O cxb3 11. axb3 Bb4 12. Na3 O-O 13. Nc2 Re8 14. Nxb4 Nxb4 15. Ra4 Nfd5 16. Bc4 Bd7 {Rumyantsev,V-Gulevich,A (2264) ICCF 2008 0-1 (35)}) (5. Nc3 g6 6. d4 cxd4 7. exd4 Bg4 8. Bb5 Bg7 9. d5 a6 10. dxc6 axb5 11. cxb7 Rb8 12. Nxb5 Qa5+ 13. Nc3 Rxb7 14. Qxd6 Ne7 15. Nd2 O-O 16. Nc4 Qa8 {López Muñoz,J (1632)-Taylor,B ICCF 2018 1/2 (35)}) 5... g6 (5... Nf6 6. Be2 g6 7. O-O Bg7 8. c4 O-O 9. a3 Be6 10. Ng5 d5 11. Nxe6 fxe6 12. cxd5 exd5 13. Qc2 Qd7 14. Nd2 Rac8 15. Nf3 d4 16. e4 b6 17. Qc4+ {Aiken,J-Burks,P ICCF 2019 1/2}) 6. Be2 (6. c4 Bg7 7. Nbd2 Nge7 8. a3 a5 9. Qc2 O-O 10. Be2 f5 11. O-O f4 12. exf4 Rxf4 13. Ne4 b6 14. Rac1 Qd7 15. h3 Bb7 16. Bc3 d5 17. cxd5 Nxd5 {Zimmermann,F (2252) -Rosenova Marinova,K (2258) ICCF 2015 0-1 (42)}) 6... Bg7 7. O-O Nge7 8. Nbd2 O-O 9. c3 d5 10. Qc2 Re8 11. Rac1 h6 12. e4 Be6 13. Rfe1 Rc8 14. Qb1 Qd7 15. b4 cxb4 {Cakl,Z (2224)-Voll,A (2514) ICCF 2007 1/2 (46)}) 4... cxd4 5. Nxd4 e5 6. Nxc6 bxc6 7. g3 (7. e3 Be7 8. Be2 Nf6 9. O-O O-O 10. c4 Bf5 11. Nc3 d5 12. cxd5 cxd5 13. Bd3 Bg6 14. Qe2 Qd7 15. Rfc1 Rac8 16. h3 Bxd3 17. Qxd3 h5 18. Ne2 Qe6 {Avchinikov,V (2367)-Frotscher,T (2364) ICCF 2019 1/2 (30)}) 7... Be6 (7... Nf6 8. Bg2 Qc7 (8... Qb6 9. O-O Be6 10. c4 Be7 11. Nc3 O-O 12. Na4 Qc7 13. Rc1 h6 14. e4 a5 15. Qe2 Nd7 16. f4 Nb6 17. Nc3 f6 18. Nd5 Nxd5 19. cxd5 Qa7+ 20. Kh1 {Hacker,C (2506)-Staroske,U (2514) ICCF 2016 1/2 (35)}) 9. c4 (9. O-O Be7 10. c4 O-O 11. Nc3 Rd8 12. Qc2 Be6 13. Ne4 a5 14. Rab1 Qc8 15. Rfd1 a4 16. Nxf6+ Bxf6 17. b4 a3 18. Bc1 d5 19. cxd5 cxd5 20. Qxc8 Raxc8 {Lixa,A (1825)-Gomes,J (2170) ICCF 2016 0-1 (49)}) 9... Bf5 10. Nc3 Be7 11. e4 Bg4 12. Qd2 O-O 13. O-O Rfd8 14. Rac1 Qb7 15. h3 Bh5 16. f4 exf4 17. gxf4 Nd7 18. Kh1 Rab8 19. Qe3 { Schiendorfer,R (2397)-Parsons,L (2359) ICCF 2014 1/2 (32)}) (7... f5 8. Bg2 e4 (8... Qc7 9. c4 Nf6 10. Nc3 Be6 11. O-O Rd8 12. Rc1 Qb7 13. Qc2 Be7 14. e4 fxe4 15. Nxe4 O-O 16. Ng5 Bf7 17. Nxf7 Rxf7 18. h3 Nd7 19. Qe4 Rc8 20. Rcd1 { Horacek,D-Simon,H ICCF 2007 0-1 (32)}) 9. O-O Nf6 10. c4 Be7 11. Na3 Be6 12. Nc2 a5 13. Nd4 Bd7 14. Bc3 O-O 15. Qd2 a4 16. Rfd1 Qe8 17. e3 Qh5 18. h3 g5 19. b4 {Enricci,J (2395)-Sitorus,Y (2341) ICCF 2017 0-1 (68)}) 8. Bg2 Rc8 9. Nd2 ( 9. c4 Nf6 10. O-O Be7 11. e4 h5 12. c5 h4 13. cxd6 Bxd6 14. Nd2 hxg3 15. hxg3 Ng4 16. Nf3 c5 17. Ba3 Rc6 18. Rc1 Qa5 19. Ng5 Bd7 20. Bb2 Qxa2 {Powers Roibal, F (2387)-Dessaules,P (2373) ICCF 2019 1/2 (26)}) 9... Be7 10. O-O Nf6 11. c4 O-O 12. e4 Qb6 13. Rc1 Nd7 14. Bc3 Nc5 15. Qc2 a5 16. Kh1 Na6 17. f4 f6 18. Nf3 Rfe8 19. Rfd1 Bf8 20. Qe2 Rb8 21. Rb1 Nc5 22. f5 Bf7 23. Ne1 Qa6 24. Nc2 a4 25. Ra1 d5 26. exd5 cxd5 27. Nb4 Qc8 28. Nxd5 axb3 29. axb3 Rxb3 30. Qc2 Rb7 31. Bb4 Kh8 32. Rab1 Rb8 33. Re1 h6 34. Red1 Rd8 35. Ba5 Rxb1 36. Rxb1 Rd6 37. Bf3 Ra6 38. Bb4 e4 39. Bg2 Nd3 40. Bxe4 Bxd5 {1/2 (40) Enricci,J (2395)-Achatz,K (2345) ICCF 2017 Unusual lines after 1 Nf3 and-King's Indian Attack}) 2... d5 ( 2... Nf6 3. g3 d5 4. d3 Nc6 5. Bg2 e5 6. O-O Be7 7. Na3 (7. Bg5 O-O 8. Nfd2 Be6 9. e4 d4 10. Na3 Ng4 11. Bxe7 Qxe7 12. Ndc4 Nh6 13. f4 exf4 14. gxf4 f6 15. Qh5 Nb4 16. Rf2 Ng4 17. Re2 g6 18. Qh4 g5 {Green,M (2115)-Kutsenko,A (2102) ICCF 2019 1/2 (40)}) 7... O-O 8. e4 Be6 9. h3 dxe4 10. Ng5 Qc8 11. Nxe6 Qxe6 12. dxe4 Rfd8 13. Qe1 a6 14. Be3 {Green,M (2102)-Husák,J (2114) ICCF 2019 1/2}) 3. e4 dxe4 4. Bb5+ (4. Ne5 Qd4 (4... Nf6 5. Bb5+ Bd7 6. Bxd7+ Nbxd7 7. Nxd7 Qxd7 8. d3 exd3 9. Qxd3 Qxd3 10. cxd3 Nd5 11. Nc3 Nb4 12. O-O O-O-O 13. Be3 Nxd3 14. Nb5 a6 15. Na7+ Kb8 16. b4 {Aannevik,B (1527)-Vegjeleki,A (2157) ICCF 2009 0-1 (25)}) 5. Nxf7 Kxf7 6. c3 Qd6 7. d4 exd3 8. Bxd3 Nc6 9. Qf3+ Nf6 10. O-O Ne5 11. Qf4 Nxd3 12. Qxd6 exd6 13. Na3 Be6 14. Nb5 Be7 15. Nc7 Rac8 {Aannevik,B (1527)-Korman,J ICCF 2009 0-1}) 4... Bd7 (4... Nd7 5. Ng5 a6 6. Bxd7+ Bxd7 7. Nxe4 Nf6 8. Nxc5 Bc6 9. f3 e6 10. Nb3 Bd6 11. d3 Qc7 12. h3 Nh5 13. Be3 Ng3 14. Rg1 Nf5 15. Bf2 Bh2 16. Rh1 {Korman,J-Vegjeleki,A (2157) ICCF 2009 0-1}) 5. Ng5 Bxb5 (5... Nf6 6. Nc3 Nc6 7. Ngxe4 Nxe4 8. Nxe4 a6 9. Bc4 Ne5 10. Ba2 c4 11. O-O Bc6 12. Re1 e6 13. Qh5 Qd5 14. b3 Qd4 15. c3 Qd5 16. bxc4 Nxc4 17. Qh3 { Vegjeleki,A (2157)-Korman,J ICCF 2009 1-0}) 6. axb5 Nf6 7. Nc3 h6 8. Ngxe4 Nxe4 9. Nxe4 e6 (9... f5 10. Qh5+ {1-0 (10) Korman,J-Aannevik,B (1527) ICCF 2009}) 10. d3 f5 11. Qh5+ {1-0 (11) Vegjeleki,A (2157)-Aannevik,B (1527) ICCF 2009}) ( 1... Nf6 2. g3 (2. d4 g6 3. c4 c5 4. Nc3 cxd4 5. Nxd4 Nc6 6. g3 Bg7 7. Nxc6 bxc6 8. Bg2 O-O 9. O-O Qa5 10. Bd2 Rb8 11. b3 Qa6 12. Rc1 d6 13. e4 Rd8 { Carnemolla,G (1948)-Gacnik,L (2139) ICCF 2012 0-1 (57)}) 2... c5 (2... b6 3. Bg2 Bb7 4. O-O c5 5. Nc3 (5. d3 d5 6. e4 dxe4 7. dxe4 Qxd1 8. Rxd1 Nxe4 9. Na3 Nd6 10. Bf4 Nc6 11. Bxd6 exd6 12. Nb5 Rd8 13. Nd2 Na5 14. Bxb7 Nxb7 15. Nc4 Na5 16. Nxa5 bxa5 {Marez,S (2430)-Kayser,P (2129) ICCF 2012 1/2 (59)}) 5... e6 6. d3 d5 (6... Be7 7. e4 O-O 8. Re1 d5 9. exd5 Nxd5 10. Nxd5 Bxd5 11. c4 Bb7 12. d4 cxd4 13. Nxd4 Qc8 14. Bxb7 Qxb7 15. Be3 Bf6 16. Qa4 Nd7 17. Rad1 Rfc8 18. f4 {Karelin,E (1981)-Pallett,R (2011) ICCF 2007 1/2}) 7. e4 Be7 8. Bf4 O-O 9. exd5 Nxd5 10. Nxd5 Qxd5 11. Re1 Na6 12. c3 Qc6 13. Qe2 Rad8 14. Nh4 {Bachler,K (2256)-Gildred,T (2376) ICCF 2010 1/2 (57)}) 3. Bg2 Nc6 (3... e6 4. O-O d5 ( 4... d6 5. d3 Nc6 6. Nbd2 g6 7. e4 Bg7 8. a3 O-O 9. Rb1 Qc7 10. c3 a6 11. b4 cxb4 12. axb4 b5 13. Ne1 Bb7 14. Nb3 Ne5 15. Na5 Rab8 16. Bb2 {Sommeling,G (1686)-Verbiest,J (1718) ICCF 2020 (25)}) 5. c3 Nc6 6. Kh1 Be7 7. Ng1 e5 8. d3 O-O 9. Bg5 Be6 10. Nd2 Qd7 11. Bxf6 Bxf6 12. Ndf3 Be7 13. a3 Rad8 14. Qc2 a5 15. Rfd1 {Armstrong,J (1506)-MacGregor,C (1872) ICCF 2020 0-1 (35)}) 4. d4 (4. O-O e5 (4... g6 5. d4 (5. Ng5 Bg7 6. c3 O-O 7. Na3 d5 8. h4 e5 9. e4 dxe4 10. f4 exf4 11. h5 Nxh5 12. d3 Qxg5 13. gxf4 Qe7 14. Bxe4 Qh4 15. Qe2 Bg4 16. Qg2 Qg3 {Feeney,W-Dunks,P (1795) ICCF 2016 0-1}) 5... cxd4 6. Nxd4 Bg7 7. Nc3 O-O 8. Bg5 d5 9. e3 e6 10. Nxc6 bxc6 11. e4 Qc7 12. Re1 Ba6 13. Rb1 Rac8 14. b3 Rfe8 15. Bf4 e5 16. Bg5 {Yui Pineda,G (2233)-Figlio,G (2447) ICCF 2009 1/2 (43) }) 5. e4 Be7 6. Nc3 (6. Re1 O-O 7. c3 d6 8. Na3 h6 9. d3 Be6 10. Nc2 Re8 11. Ne3 Qd7 12. Nh4 d5 13. Nxd5 Nxd5 14. exd5 Bxd5 15. Nf5 Be6 16. Nxe7+ Rxe7 17. Be3 b6 {Schmidt,G (2435)-Rogos,J (2298) ICCF 2009 0-1 (46)}) 6... d6 7. d3 h6 ( 7... O-O 8. Nd5 Be6 (8... Nd4 9. Nxd4 cxd4 10. Nxe7+ Qxe7 11. Bd2 {1-0 (11) Rivas Mozo,A-Romero Díaz,C ICCF 2018}) (8... h6 9. c3 Bg4 10. Ne3 Be6 11. Re1 Qd7 12. Bd2 Rab8 13. Nh4 Nh7 14. Nhf5 Bg5 15. a3 Bxe3 16. Nxe3 Ne7 17. b4 b6 18. Rb1 a5 19. c4 axb4 20. axb4 {Parente,A-Olivo,O ICCF 2010 0-1 (31)}) (8... Nxd5 9. exd5 Nb8 10. Nd2 b5 11. c4 Bf5 12. Qe2 a6 13. a4 b4 14. f4 exf4 15. Nb3 Re8 16. Bxf4 Nd7 17. d4 Bg6 18. dxc5 Nxc5 19. Nxc5 dxc5 20. Qf2 {Cvak,R (2408) -Gagliardi,V (2199) ICCF 2019 1/2 (30)}) 9. Ng5 Bd7 10. Ne3 b5 11. Bd2 Rb8 12. Nf3 Re8 13. Re1 Bf8 14. c3 b4 15. cxb4 Nxb4 16. Nc4 Qc7 17. Bc3 g6 18. Qd2 Ng4 19. Ng5 {Kermer,W (2328)-Zernovic,F (2311) ICCF 2013 1/2 (56)}) 8. Nh4 Bg4 9. Ne2 Nd4 10. f3 Bd7 11. c3 Nc6 12. Nf5 Bxf5 13. exf5 Qd7 14. d4 exd4 15. cxd4 d5 {Schild,R (2171)-Meyer,F (2133) ICCF 2019 0-1 (36)}) (4. b3 d5 5. d4 Bf5 6. O-O e6 7. e3 cxd4 8. Nxd4 Nxd4 9. Qxd4 Bxc2 {0-1 (9) Wallez,D-Punzón Moraleda,J (2385) ICCF 2006}) (4. d3 d5 5. Bf4 e6 6. Qd2 (6. O-O Bd6 7. Bxd6 Qxd6 8. Re1 e5 9. Nbd2 O-O 10. c4 d4 11. Ng5 Qc7 12. a3 a5 13. Nge4 Nxe4 14. Nxe4 b6 15. e3 Bd7 16. Qh5 Rad8 17. f4 f6 {Gallimore,C (2114)-Ellis,L (2324) ICCF 2015 1/2 (42)}) 6... Nh5 7. g4 Nxf4 8. Qxf4 Bd6 9. Qd2 O-O 10. g5 Bc7 11. h4 e5 12. Nc3 Ba5 13. e3 d4 14. exd4 cxd4 15. h5 dxc3 {Giessing,K (1449)-Meller,E (1888) ICCF 2018 0-1 (33)}) 4... cxd4 (4... Nxd4 5. Nxd4 e5 6. Nb5 d5 7. Bxd5 Bd7 8. N5c3 Nxd5 9. Qxd5 Qc7 10. O-O Be6 11. Qf3 O-O-O 12. e4 h5 13. Nd5 Qd7 14. Ne3 Qc6 15. Nc3 h4 16. b3 {Mitica,G (2070)-Kjeldsen,K (2006) ICCF 2013 1/2 (33)}) 5. Nxd4 e5 6. Nxc6 bxc6 (6... dxc6 7. Qxd8+ Kxd8 8. Nd2 (8. Bg5 Kc7 (8... Be7 9. Nc3 Be6 10. O-O-O+ Kc7 11. h3 b5 12. Bxf6 Bxf6 13. b3 Be7 14. Kb2 a5 15. a4 b4 16. Nb1 Rad8 17. Kc1 f5 18. e3 e4 19. Rxd8 Rxd8 20. Rd1 {Mitica,G (2026) -Maffioletti,F ICCF 2014 1/2}) 9. Bxf6 gxf6 10. O-O Bg4 11. f3 Bc5+ 12. Kh1 Be6 13. Nc3 h5 14. Ne4 Be3 15. Rfd1 f5 16. Nc3 h4 17. Rd3 Bb6 18. g4 h3 19. Bf1 Rag8 {Paan,K-Morley,P (2327) ICCF 2012 0-1 (38)}) (8. O-O Kc7 9. c4 Bg4 10. Re1 Bb4 11. Bd2 Bxd2 {0-1 (11) Setyoko,U-Züger,A (1777) ICCF 2017}) 8... Bc5 9. Nc4 Ng4 10. h3 Be6 11. hxg4 Bxc4 12. g5 Kc7 13. b3 Bd4 14. Rb1 Be6 15. Bd2 a5 16. Be4 b5 17. a4 b4 18. e3 {Emrich,E (2015)-Schneider,H (2199) ICCF 2010 1-0 (41)} ) 7. O-O Be7 8. c4 O-O 9. Nc3 Rb8 (9... h6 10. Qd2 Qc7 11. Rd1 d6 12. b3 Be6 13. Bb2 Rfd8 14. Rac1 Qd7 {0-1 (14) Tirado,C (1879)-Pereira,E ICCF 2012}) 10. b3 Ba6 11. Rb1 Qc7 12. Bb2 Rfd8 13. e4 {Semenov,V (2250)-Gorentsov,I ICCF 2012 1/2 (50)}) (1... b6 2. g3 (2. a4 Bb7 (2... d5 3. d4 e6 4. e3 Nf6 5. a5 Bd6 6. Nc3 bxa5 7. Rxa5 O-O 8. Be2 c6 9. Ra2 Nbd7 10. b3 Re8 11. Ba3 Bc7 12. Na4 e5 13. dxe5 Nxe5 14. Nc5 {Dam,J (2118)-Bruce,R (2123) ICCF 2020 1/2 (41)}) 3. a5 Nc6 4. a6 Bc8 5. g3 Nb4 6. e4 d6 7. Bb5+ Bd7 8. Ba4 e5 9. Bb3 h6 10. d3 Bg4 11. Nbd2 Nf6 12. Ba4+ c6 13. Nc4 b5 {Schuttenhelm,L (1732)-Glover,V (1717) ICCF 2014 1-0 (47)}) 2... Bb7 3. Bg2 (3. c4 g6 (3... e6 4. Bg2 Ne7 5. d4 g6 6. O-O Bg7 7. Nc3 O-O 8. d5 Na6 9. e4 Nc5 10. Re1 exd5 11. exd5 Nf5 12. Bg5 Bf6 13. b4 Bxg5 14. Nxg5 Na6 15. Nge4 {Brown,A (2370)-Lloyd,G (2258) ICCF 2007 1-0 (44)}) 4. d4 Bg7 5. Bg2 d6 6. Nc3 Nf6 7. d5 e5 8. e4 a5 9. O-O O-O 10. Bg5 Na6 11. Qd2 Nc5 12. Rfe1 Bc8 13. h3 Qe8 14. Rad1 Bd7 {Moegito,A (2228)-Robeille,J (2165) ICCF 2019 1/2 (67)}) 3... g6 (3... e5 4. d3 (4. O-O d6 5. c4 Nc6 6. Nc3 Nf6 7. e3 Be7 8. d4 O-O 9. dxe5 dxe5 10. Nxe5 Nxe5 11. Bxb7 Qxd1 12. Rxd1 Rad8 13. Nd5 Nxd5 14. cxd5 Bd6 15. Kg2 a5 {Cremerius,A-Secondi,A (1582) ICCF 2017 1-0 (40)}) 4... Nf6 5. O-O d6 6. c4 Be7 7. Nc3 Nbd7 8. e4 O-O 9. Nh4 Nxe4 10. Nxe4 f5 11. Nf6+ Bxf6 12. Bxb7 Rb8 13. Bd5+ Kh8 14. Nxf5 Bg5 15. Qg4 {Skowronek,J-Mayes,F (1546) ICCF 2014 1-0 (30)}) (3... f5 4. d3 Nf6 5. O-O e6 6. Nbd2 Be7 7. e4 fxe4 8. Ng5 O-O 9. Ndxe4 Nxe4 10. Nxe4 Nc6 11. f4 Nd4 12. c3 Nf5 13. Nf6+ Bxf6 14. Bxb7 Rb8 15. Bh1 {Costa Trillo,V (1718)-Thompson,E (1896) ICCF 2011 1-0 (43)}) (3... c6 4. O-O Nf6 5. d3 e6 6. Nbd2 d5 7. Re1 Bc5 8. e4 O-O 9. e5 Ne8 10. d4 Bb4 11. c3 Be7 12. c4 Ba6 13. b3 Nc7 14. a4 f5 15. Ba3 {Carrington,A (1442) -Miedema,H (1173) ICCF 2017 1-0 (25)}) (3... h6 4. O-O e6 5. d3 g5 6. e4 g4 7. Ne5 h5 8. Bf4 d6 9. Nc4 e5 10. Be3 Nd7 11. Nc3 h4 12. Qxg4 hxg3 13. fxg3 Qe7 14. Bg5 Ngf6 15. Bxf6 {Simonson,J-Traylor,B ICCF 2009 1-0 (48)}) 4. O-O (4. d4 Bg7 5. b3 c5 6. Bb2 Nc6 7. O-O d5 8. Ne5 Nxd4 9. f4 f6 10. e3 Nf5 11. Nd3 Nxe3 12. Qe2 Nxf1 13. Kxf1 Qd7 14. a4 Nh6 15. Nd2 Rc8 {Dawkins,B-Breederveld,H (2020) ICCF 2010 0-1 (26)}) (4. c3 Bg7 5. d4 Nf6 6. O-O O-O 7. Re1 d5 8. Ne5 Nfd7 9. Nd3 Re8 10. Nd2 f5 11. e3 e6 12. c4 Qc8 13. cxd5 exd5 14. b4 c5 15. bxc5 bxc5 {Macko,M (1599)-Arvidsson,D (1377) ICCF 2018 1-0}) 4... Bg7 (4... c5 5. c3 (5. d3 Bg7 6. Nbd2 Nc6 7. Re1 (7. e4 Nf6 8. c3 O-O 9. Re1 Qc7 10. Nc4 d5 11. Bf4 Qc8 12. exd5 Nxd5 13. Bd2 Rd8 14. a4 Nc7 15. Bf4 Nd5 16. Bd2 Qf5 17. Qe2 {Clews,W (1911)-Gardner,A ICCF 2011 1/2}) 7... e6 8. e4 Qc7 9. Nf1 d6 10. c3 Nge7 11. Qc2 O-O 12. Bf4 e5 13. Bd2 d5 14. exd5 Nxd5 15. Ne3 Nxe3 16. Bxe3 Rad8 {Bobone Carvalho,D (2058)-Underwood,W (2118) ICCF 2004 1/2 (31)}) 5... Bg7 6. Qb3 Nc6 7. e4 e6 8. Re1 Nf6 9. d4 Na5 10. Qc2 cxd4 11. Nxd4 O-O 12. Nd2 Ng4 13. h3 Ne5 14. f4 Nec6 15. Nb5 Ba6 16. a4 {Bush,F-Anderson,J (1736) ICCF 2005 1-0 (36)}) 5. d3 (5. d4 d6 (5... a5 6. c4 h5 7. Nc3 Na6 8. e4 Nh6 9. h3 c5 10. d5 d6 11. Bf4 e5 12. dxe6 Bf8 13. Qa4+ Ke7 14. e5 dxe5 15. Nxe5 Bxg2 16. Kxg2 Nb4 17. a3 {Silva,L-Reid,W (1341) ICCF 2019 1-0 (28)}) 6. c4 (6. Re1 Nd7 7. e4 e5 8. Nc3 Ne7 9. d5 f5 10. Bg5 h6 11. Bxe7 Qxe7 12. Nb5 Nf6 13. exf5 gxf5 14. Nh4 Qd7 15. Nxf5 Qxf5 16. Nxc7+ Kd7 17. Nxa8 Bxa8 {Stone,D (1699)-Cardenas,I (1367) ICCF 2016 0-1 (36)}) 6... Nf6 7. d5 O-O 8. Nc3 c6 9. Nd4 c5 10. Nc2 a6 11. Re1 Nbd7 12. a4 Re8 13. e4 Qc7 14. f4 Rad8 15. h3 e6 16. Be3 Nh5 {Mulligan, B (2421)-Robeille,J (2151) ICCF 2019 1-0 (43)}) 5... e6 (5... Nf6 6. c4 c5 7. Bd2 O-O 8. Bc3 Nc6 9. Na3 d6 10. Nc2 Rc8 11. Qd2 d5 12. cxd5 Qxd5 13. Ne3 Qd7 14. Rfe1 Rfd8 15. Nc4 Ne4 16. dxe4 Qe6 17. Qf4 {Coope,D (2129)-Breederveld,H (2019) ICCF 2012 1-0}) 6. c4 (6. e4 d6 7. Qe2 Ne7 8. Nbd2 O-O 9. h4 c5 10. h5 Nbc6 11. c3 gxh5 12. Ng5 Ne5 13. Qxh5 h6 14. d4 Nd3 15. Nh3 Nxc1 16. Raxc1 cxd4 17. cxd4 Rc8 {Sulit,F (1991)-Secondi,A (1475) ICCF 2016 1/2 (30)}) 6... c5 7. Nbd2 Ne7 8. Qb3 O-O 9. Ne4 Bxe4 10. dxe4 Nbc6 11. Bf4 e5 12. Bd2 Nd4 13. Qd3 { Coope,D (1925)-Illingworth,J ICCF 2016 1-0 (35)}) (1... d5 2. g3 f5 3. Bg2 Nf6 4. O-O e6 5. d3 Bc5 (5... Nc6 6. Nbd2 Bc5 7. Nb3 Bd6 8. c4 O-O 9. cxd5 exd5 10. Bg5 Re8 11. Nfd4 Nxd4 12. Nxd4 c6 13. Qd2 h6 14. Bf4 c5 15. Nb5 Bxf4 16. Qxf4 a6 17. Nc3 {Larsen,N (2017)-Jørgensen,B (2239) ICCF 2009 0-1 (27)}) (5... Bd6 6. Nc3 c6 7. e4 fxe4 8. dxe4 Nxe4 9. Nxe4 dxe4 10. Ng5 O-O 11. Bxe4 h6 12. Nh7 Rf7 13. Qh5 Nd7 14. Bxh6 gxh6 15. Qg6+ Rg7 16. Qxe6+ Kh8 17. Qxh6 {Zaugg,B (1847)-Woodhouse,S ICCF 2013 1-0}) (5... c6 6. Nbd2 Bd6 7. e4 e5 8. exd5 cxd5 9. Nxe5 O-O 10. Re1 Qc7 11. Ndf3 Nc6 12. Nxc6 bxc6 13. h3 Bd7 14. b3 Rae8 15. Bd2 Rxe1+ 16. Qxe1 Re8 17. Qf1 {García Velayos,C (1657)-Perea Sardón,F ICCF 2017 1-0 (38)}) 6. c4 O-O 7. Qc2 d4 8. Nbd2 Nc6 9. Nb3 Be7 10. c5 e5 11. Qc4+ { 1/2 (11) Vieito Soria,L (1794)-Bernad Suárez,A (2055) ICCF 2006}) (1... g6 2. h3 (2. b4 Bg7 3. Nc3 (3. d4 a5 (3... Nc6 4. b5 Na5 5. e4 c5 6. bxc6 Nxc6 7. c3 d5 8. e5 a6 9. Be2 f6 10. Bf4 fxe5 11. Nxe5 Nh6 12. Qc1 Nf5 13. Nxc6 bxc6 14. Nd2 c5 15. Be5 {Buss,M (2260)-Ansel,A (2214) ICCF 2020 1/2 (34)}) 4. b5 d5 5. c4 dxc4 6. e3 Nh6 7. Ba3 Be6 8. Qc2 c5 9. Bxc5 Nd7 10. Ba3 Nb6 11. Nc3 O-O 12. Be2 Rc8 13. Rd1 Nf5 14. O-O Nd6 {Buss,M (2197)-Ziemak,K ICCF 2019 1-0 (34)}) ( 3. c3 Nf6 4. d3 O-O 5. g3 d6 6. Bg2 a5 7. bxa5 Rxa5 8. c4 Ne4 9. d4 c5 10. Bb2 Nc6 11. e3 Be6 12. Bc3 Nxc3 13. Nxc3 cxd4 14. exd4 Bxc4 {Kaytazki,L (1949) -Pooley,M (1926) ICCF 2008 0-1}) 3... d5 (3... Nf6 4. Bb2 d5 5. e3 O-O 6. Be2 a6 7. a3 Nbd7 8. O-O e5 9. Re1 e4 10. Nd4 b6 11. Nc6 Qe8 12. a4 Bb7 13. Nd4 c5 14. bxc5 bxc5 15. Nb3 {Braak,J (1980)-Nieuwland,A (2258) ICCF 2013 0-1 (50)}) 4. Bb2 e5 5. e4 d4 6. Na4 Nf6 7. Bd3 Nh5 8. g3 Bh3 9. Bf1 Bxf1 10. Kxf1 O-O 11. c3 d3 12. Qb3 Nd7 13. Kg2 b5 {Ruiz Romero,Z-Alonso González,C ICCF 2007 1/2 (51)}) (2. Nc3 c6 (2... Bg7 3. b3 d5 (3... b5 4. a3 d5 5. d4 a5 6. h4 b4 7. axb4 c5 8. bxa5 cxd4 9. Nxd4 e6 {0-1 (9) Di Caccia,M-Budge,E ICCF 2006}) 4. e3 Nf6 5. Bb2 O-O 6. Be2 c5 7. O-O Nc6 8. Na4 b6 9. d4 Ne4 10. Ne5 Nxe5 11. dxe5 Bb7 12. f3 Ng5 13. f4 Ne6 14. c4 {Thompson,E (1912)-Taylor,B (1987) ICCF 2012 1/2 (27)}) 3. d4 f6 4. e4 d5 5. Bd3 e6 6. h4 h5 7. exd5 Ne7 8. dxe6 Bxe6 9. Qe2 Qd7 10. Ne4 Bg7 11. Nc5 Kf7 12. Nxd7 Bxd7 13. O-O Bg4 {Galatola,A-Loison,F (1479) ICCF 2020}) (2. g4 d5 (2... Bg7 3. h4 e5 4. e4 Nc6 5. Bc4 Qe7 6. Qe2 f6 7. Bxg8 Rxg8 8. Qc4 Rf8 9. Nc3 d6 10. O-O Be6 11. Qb5 O-O-O 12. Nd5 Qd7 13. d3 Bxg4 14. Be3 {Latta,D-Cain,L ICCF 2015 0-1}) 3. h3 Bg7 4. d4 Nf6 5. c4 dxc4 6. Nc3 c5 7. Bg2 Nc6 8. Qa4 Nd5 9. Ne5 Nxc3 10. bxc3 O-O 11. Nxc6 bxc6 12. Qxc6 cxd4 13. Qxa8 dxc3 {Green,M (1998)-Malisevschi,C (1988) ICCF 2014 1/2 (25)}) ( 2. Ne5 Bg7 3. d4 c5 4. Bg5 f6 5. Bf4 fxe5 6. dxe5 Nc6 7. g3 Qb6 8. Bg2 Qxb2 9. Nd2 Bxe5 10. O-O Qxa1 11. Nb1 Bxf4 12. gxf4 Qxa2 13. Bd5 Qb2 {Johansson,R (1631)-Varjokallio,M ICCF 2012 0-1 (28)}) (2. g3 Bg7 (2... b6 3. Bg2 Bb7 4. O-O c5 (4... Bg7 5. Re1 Nf6 6. d3 d5 7. c3 Nc6 8. d4 O-O 9. Nbd2 e5 10. dxe5 Ng4 11. h3 Ngxe5 12. Nxe5 Nxe5 13. f4 Nc6 14. e4 d4 15. e5 dxc3 16. bxc3 {Leone,A (2073)-Schramm,L (1778) ICCF 2014 1-0 (47)}) 5. d3 Bg7 6. e4 d6 7. Re1 e5 8. a4 Ne7 9. Na3 O-O 10. h4 Nbc6 11. h5 h6 12. hxg6 fxg6 13. c3 Bc8 14. Nc4 {Owens,J (2019)-Eckert,P (2184) ICCF 2015 0-1 (50)}) (2... a6 3. Bg2 Bg7 4. d4 e6 5. O-O Ne7 6. c4 d6 7. Nc3 Nd7 8. Qc2 h6 9. e4 Rh7 10. Be3 Kf8 11. Rad1 {1-0 (11) Larsen,N (1826)-Ipekyilmaz,E ICCF 2012}) (2... d6 3. Bg2 Bg4 4. c3 Bxf3 5. Bxf3 c6 6. d4 Bg7 7. e4 Nf6 8. Be3 Nbd7 9. Qd2 Qc7 10. Na3 a6 11. Nc2 Rc8 12. Bh6 Bxh6 13. Qxh6 c5 14. Qe3 {Tibbert,P (1674)-Ipekyilmaz,E (1710) ICCF 2018 0-1 (42)}) (2... a5 3. d4 b6 4. Bg2 d5 5. O-O Bb7 6. c4 Na6 7. cxd5 Bxd5 8. Nc3 Bb7 9. Qb3 e6 10. Bg5 Nf6 11. Rfe1 Be7 12. e4 O-O 13. Rad1 Kg7 14. Nh4 {Badger,J (1730)-Reid,W (1294) ICCF 2019 1-0 (29)}) 3. Bg2 (3. d4 c5 4. Bg2 cxd4 5. Nxd4 Nc6 6. Nb3 (6. Nxc6 bxc6 7. O-O h5 8. c4 h4 9. Qc2 Nf6 10. Nc3 hxg3 11. hxg3 Ng4 12. b3 Qa5 13. Bd2 Qh5 14. Rfd1 Bd4 15. e3 d5 16. exd4 Bf5 17. Qb2 Bd3 { Mitica,G (1804)-Vercauteren,N (1746) ICCF 2018 0-1}) 6... d6 7. O-O Be6 8. e4 h5 9. Nc3 Bxc3 10. bxc3 h4 11. Nd4 hxg3 12. fxg3 Qb6 13. Be3 Bc4 14. Rb1 Qa6 { Sprenger,E (2442)-Svácek,P (2454) ICCF 2002 0-1 (46)}) 3... d6 (3... e5 4. e4 ( 4. d3 Ne7 5. O-O (5. h4 h6 6. e4 d5 7. Nbd2 Bg4 8. c3 Nbc6 9. O-O O-O 10. Re1 Qd7 11. b4 a6 12. Qc2 d4 13. cxd4 Nxd4 14. Nxd4 Qxd4 15. Bb2 Qd7 16. Nc4 Nc6 { Whittaker,I (2117)-Cole,S (2058) ICCF 2020 1/2}) 5... O-O 6. c4 c6 7. Nc3 d5 8. Qb3 h6 9. Rd1 d4 10. Ne4 b6 11. e3 Bg4 12. Re1 dxe3 13. Bxe3 c5 14. Bxh6 Nbc6 15. Bxg7 Kxg7 {Blittkowsky,R (2106)-Tienhoven,R (2398) ICCF 2012 1/2 (38)}) (4. O-O f5 5. d3 d5 6. e4 fxe4 7. dxe4 d4 8. c3 Nc6 9. cxd4 Nxd4 10. Nxd4 exd4 11. Nd2 Ne7 12. Qb3 c6 13. Re1 Qa5 14. e5 Nd5 15. Nf3 O-O {Moeykens,C (2101) -Truyens,A (2264) ICCF 2007 1/2 (42)}) 4... Nc6 (4... c5 5. Nc3 (5. d3 Nc6 6. a3 Nge7 7. c3 O-O 8. O-O b6 9. b4 d5 10. Nbd2 d4 11. cxd4 cxd4 12. Nh4 a6 13. f4 Bd7 14. Nhf3 exf4 15. gxf4 Rc8 16. Qe1 Na7 {Stigter,J (2300)-Nieuwland,A (2302) ICCF 2017 1-0 (46)}) 5... Ne7 6. d3 Nbc6 7. Nd2 d6 8. Nc4 Be6 9. a4 O-O 10. Nd5 Nb4 11. Nxe7+ Qxe7 12. Ne3 Nc6 13. Nd5 Qd7 14. O-O Bg4 15. Bf3 Bxf3 16. Qxf3 {Kural,A (2305)-Larsson,M (2302) ICCF 2011 1/2 (43)}) 5. O-O (5. d3 Nge7 6. O-O O-O 7. Nbd2 (7. Bg5 h6 8. Be3 f5 9. exf5 Nxf5 10. Nc3 d5 11. Bd2 Be6 12. h4 Qd7 13. a3 Rf7 14. b4 Raf8 15. Rb1 Nxg3 16. fxg3 Bg4 17. Kh2 Nd4 18. Nxe5 Bxe5 {Horie,T (1879)-Schmidt,L (2379) ICCF 2014 0-1}) 7... d6 8. c3 h6 9. b4 a6 10. a4 f5 11. Qb3+ Kh8 12. Ba3 fxe4 13. dxe4 b6 14. Qc4 Qe8 15. b5 axb5 16. axb5 Na7 {Clark,S (1968)-Slupski,M ICCF 2011 1-0 (28)}) 5... Nge7 6. Nc3 O-O 7. d3 d6 8. Be3 Nd4 9. Ne2 Nxf3+ 10. Bxf3 f5 11. exf5 Nxf5 12. Bd2 c6 13. c4 Nh4 14. Bg2 Nxg2 15. Kxg2 {Horie,T (1804)-Schmidt,L (2388) ICCF 2016 0-1 (31)}) ( 3... c6 4. O-O Na6 (4... Qb6 5. c3 d6 6. d3 Kf8 7. Nbd2 Bd7 8. e4 Be8 9. Nc4 Qc7 10. d4 Nd7 11. Qe2 Rd8 12. e5 d5 13. Ne3 e6 14. b3 Ne7 15. c4 Kg8 16. Ba3 { Fracassa,M-Ipekyilmaz,E (1532) ICCF 2015 0-1 (41)}) 5. c4 Nf6 6. Nc3 O-O 7. d4 Nc7 8. d5 cxd5 9. cxd5 d6 10. e4 Na6 11. e5 dxe5 12. Nxe5 Ne8 13. Re1 Nd6 14. h3 Nc5 15. Be3 {Blondel,F (1837)-Boucher,B (1763) ICCF 2020 1-0 (38)}) (3... c5 4. O-O d6 5. e4 Nc6 6. d3 e6 7. c3 Nf6 8. Re1 O-O 9. Nbd2 e5 10. Nc4 Rb8 11. a4 b6 12. h3 a6 13. d4 exd4 14. cxd4 d5 15. exd5 {Bielewicz,J-Bush,F ICCF 2005 1/ 2 (34)}) (3... e6 4. O-O Nf6 5. Nc3 O-O 6. d3 Re8 7. Bg5 d5 8. e3 e5 9. Ne2 Bg4 10. c3 e4 11. dxe4 dxe4 12. Qxd8 Rxd8 13. Nfd4 Bxe2 14. Nxe2 Rd2 15. Bxf6 { Osuna Osuna,F (1628)-Pope,P (1668) ICCF 2014 1/2 (40)}) (3... f6 4. O-O b6 5. Nc3 Bb7 6. b3 f5 7. Bb2 Nf6 8. d3 e6 9. e3 a6 10. a4 Ke7 11. Ba3+ d6 12. Qd2 Nbd7 13. Rae1 Qc8 14. Ne2 h6 15. Nh4 {MacMillen,A (1739)-Ipekyilmaz,E (1476) ICCF 2015 0-1 (45)}) 4. O-O (4. d3 c6 5. O-O e5 6. e4 Ne7 7. Re1 O-O 8. Nbd2 Nd7 9. a4 a5 10. b3 f5 11. Ba3 Nb6 12. c3 Kh8 13. d4 f4 14. dxe5 dxe5 15. Nf1 Qe8 {Gallimore,C (2199)-Dixon,R (1919) ICCF 2019 1-0 (30)}) 4... e5 5. d4 (5. d3 f5 (5... Ne7 6. c3 (6. Nc3 Nbc6 7. a3 O-O 8. Bd2 d5 9. e4 d4 10. Ne2 f5 11. exf5 Bxf5 12. Nh4 Be6 13. Qc1 Qd7 14. Bh6 Bh3 15. Bxg7 Bxg2 16. Bxf8 Bxf1 17. Bxe7 Bxe2 {Chapin,C (2122)-McClure,D (2135) ICCF 2009 0-1}) 6... O-O 7. Be3 f5 8. Qb3+ Kh8 9. Ne1 Nbc6 10. f4 exf4 11. Bxf4 Bd7 12. Nd2 Rb8 13. Nef3 Qe8 14. Ng5 h6 15. Ne6 Bxe6 16. Qxe6 Qf7 17. Qxf7 {Fuller,J (1702)-Richardson,D (1702) ICCF 2016 0-1 (51)}) (5... Be6 6. Ng5 Qe7 7. Bxb7 f6 8. Bxa8 fxg5 9. b3 Nd7 10. Nd2 Nh6 11. Ne4 O-O 12. Bxg5 Qe8 13. Bc6 Nf7 14. Nf6+ Bxf6 15. Bxf6 g5 16. e3 Qc8 17. Bxg5 {Anderson,L (1309)-Blanchard,A (1358) ICCF 2014 0-1 (49)}) 6. Nbd2 Nc6 (6... Nf6 7. Qe1 O-O 8. e4 Nc6 9. a4 Qe8 10. Nc4 fxe4 11. dxe4 Be6 12. Qe2 Qf7 13. Ncd2 h6 14. b3 Nxe4 15. Qxe4 d5 16. Qe2 e4 17. Ba3 Bxa1 18. Bxf8 { Griffiths,H-Ackley,P (1982) ICCF 2016 0-1 (33)}) 7. e3 Nf6 8. c4 O-O 9. a3 a5 10. Qb3 a4 11. Qa2 Qe7 12. Rb1 Kh8 13. h3 Nd7 14. b4 axb3 15. Qxb3 Nc5 16. Qc2 Bd7 {Parnian,B-Ackley,P (1982) ICCF 2016 0-1 (49)}) 5... e4 6. Ng5 d5 7. c4 (7. f3 f5 8. c3 Nf6 9. Qb3 Qe7 10. fxe4 dxe4 11. Na3 a5 12. Qa4+ c6 13. Nc2 O-O 14. Qb3+ Kh8 15. a4 h6 16. Nh3 g5 17. Bd2 Be6 18. c4 Qf7 {Banet,J (2417)-Alonso González,C (2143) ICCF 2007 0-1 (96)}) 7... h6 8. Nh3 dxc4 9. Qa4+ c6 10. Qc2 Nf6 11. Nd2 O-O 12. Nxc4 b5 13. Ne3 Bd7 14. Qb3 a5 15. a4 Re8 16. axb5 cxb5 17. Rd1 a4 18. Qc3 Nc6 19. Qe1 g5 20. Ra3 b4 21. Ra1 Ng4 22. Nxg4 Bxg4 23. Be3 Qd7 24. Rac1 a3 25. bxa3 bxa3 26. Nxg5 hxg5 27. h3 Bf5 28. Bxg5 a2 29. e3 Na5 30. g4 Bh7 31. Bf4 Nb3 32. Ra1 Nxa1 33. Rxa1 Qb5 34. Bf1 Qb2 35. Bc4 Ra4 36. Bd5 Rd8 37. Bxa2 Rxa2 {0-1 (37) Gavrijski,D (1993)-Nieuwland,A (2249) ICCF 2010 Unusual lines after 1 Nf3 and-King's Indian Attack}) 2... Bg7 (2... c5 3. e4 Bg7 4. c3 Nf6 5. e5 Nd5 6. Qb3 e6 7. d4 cxd4 8. cxd4 O-O 9. Nc3 Nc6 10. Bb5 d6 11. O-O dxe5 12. Bxc6 bxc6 13. dxe5 Qc7 14. Bg5 {Green,M (2037)-Lagergren,H (1913) ICCF 2017 1-0 (51)}) 3. e3 e5 (3... d5 4. d3 e5 5. Be2 Nc6 6. c3 Nf6 7. O-O O-O 8. Nbd2 h6 9. a3 Be6 10. b3 {1-0 (10) Ellis,M-Viaggi,S ICCF 2012}) ( 3... d6 4. d4 Nf6 5. Be2 O-O 6. O-O Bf5 7. Bd3 Bxd3 8. Qxd3 c5 9. d5 a6 10. e4 b5 11. Bg5 Nbd7 12. Nbd2 h6 13. Be3 Nb6 14. Rab1 Nfd7 15. c4 {Green,M (2008) -Visser,A (2000) ICCF 2014 1-0 (37)}) 4. d4 e4 5. Nfd2 d5 (5... f5 6. c4 d6 7. b4 Nf6 8. Be2 O-O 9. O-O Be6 10. Nc3 c6 11. a4 a5 12. bxa5 Qxa5 13. Qb3 Nbd7 14. Ba3 Qc7 15. Qb4 Ne8 16. Qb3 Bf7 17. Qc2 {Green,M (2082)-Rogers,B (2083) ICCF 2020 (26)}) 6. c4 c6 7. Nc3 Ne7 8. b4 O-O 9. Be2 a6 10. a4 Nf5 11. O-O Qg5 12. Kh1 Be6 13. a5 {Green,M (2047)-Burmeister,F (2322) ICCF 2017 1-0 (48)}) ( 1... e5 2. Nxe5 Nc6 (2... Bc5 3. d4 Bd6 (3... f6 4. Nf3 Bb4+ 5. c3 Bd6 6. Qd3 Nc6 7. Qc4 Na5 8. Qd3 b6 9. Na3 c5 10. Nb5 c4 11. Qe3+ Be7 12. g4 Nh6 13. Nd6+ Kf8 14. Nf5 Nxf5 15. gxf5 {Latta,D-Fritsch,J ICCF 2015 0-1}) 4. e4 Bxe5 5. dxe5 Qe7 6. Bf4 Qb4+ 7. Nc3 Ne7 8. a3 Qb6 9. Be3 Qg6 10. f4 b6 11. f5 Qc6 12. Bb5 Qb7 13. Qg4 Rg8 14. e6 {Bîrzu,G (1758)-Pardoe,I (1687) ICCF 2018 1-0}) (2... Nf6 3. d4 d5 4. Bf4 (4. Bg5 h6 5. Bf4 Bd6 6. e3 O-O 7. Nd2 Bd7 8. Bd3 Nc6 9. O-O Nxe5 10. dxe5 Bxe5 11. Bxe5 Ng4 12. Bc3 Qe7 13. Nf3 a6 14. Qd2 c5 15. b3 b5 {Azzoug,S (1602)-Räisänen,T (1626) ICCF 2011 1-0 (75)}) 4... c5 5. e3 Qb6 6. Nc3 c4 7. Qd2 Bb4 8. f3 Nh5 9. Bg3 Nxg3 10. hxg3 O-O 11. O-O-O f6 12. Ng4 Re8 13. Rh5 Be6 14. e4 {Hendri Sevano,R (2299)-Lockwood,A (2395) ICCF 2020 0-1}) ( 2... c5 3. d4 cxd4 4. Qxd4 d6 5. Qa4+ Nd7 6. Nxd7 Bxd7 7. Qf4 Nf6 8. Nc3 d5 9. Be3 Be7 10. Bd4 Be6 11. e3 O-O 12. Bd3 Qd7 13. O-O Bd6 14. Qh4 {Sarak, M-Jiménez de Velasco Mazarío,J ICCF 2007 1-0}) (2... d5 3. f4 Nf6 4. e3 Bd6 5. Be2 Nc6 6. d4 O-O 7. O-O Bd7 8. c4 dxc4 9. Nc3 Qc8 10. Bxc4 Ng4 11. Kh1 Ngxe5 12. fxe5 Bxe5 13. dxe5 Nxe5 14. Bb3 {Wojtyra,S (2329)-Wedel,L (2285) ICCF 2020 1-0}) (2... d6 3. Nf3 Nf6 4. d4 d5 (4... g6 5. Nc3 Bg7 6. e4 O-O 7. Bd3 c5 8. d5 a6 9. a4 Bg4 10. h3 Bxf3 11. Qxf3 Nbd7 12. O-O Re8 13. Bg5 h6 14. Bf4 Ne5 15. Qe3 g5 16. Bh2 {Arnold,H (2256)-Kurbasov,S (2213) ICCF 2011 1-0 (47)}) 5. b3 Be7 6. c4 dxc4 7. a3 cxb3 8. Qxb3 Nc6 9. e3 O-O 10. Bc4 Na5 11. O-O Nxb3 12. Bxb3 Bg4 13. Ne5 Bd6 14. Bxf7+ {Wise,R-Korab,B (1613) ICCF 2014 0-1}) (2... Qe7 3. Nf3 Qe6 4. b3 Be7 5. Bb2 Nf6 6. d4 O-O 7. e3 b6 8. c4 Ba6 9. Bd3 g6 10. O-O Nh5 11. Qc2 Qg4 12. d5 f6 13. h3 Nf4 14. hxg4 {Zondervan,F (1491)-Ekelund,B ICCF 2018 1-0}) 3. Nxc6 (3. d4 Nxe5 4. dxe5 d6 5. Bf4 g5 6. Bc1 dxe5 7. Qxd8+ Kxd8 8. Bxg5+ Be7 9. Bd2 Nf6 10. f3 Be6 11. e4 Nd7 12. a4 Bc5 13. b4 Bb6 14. a5 Bd4 {Sifré Calafat,F (2015)-McNeil,M (2035) ICCF 2017 1-0 (38)}) 3... dxc6 ( 3... bxc6 4. e4 Nf6 5. e5 Nd5 6. d4 d6 7. c4 Ne7 8. Qe2 dxe5 9. Qxe5 f6 10. Qe3 Kf7 11. c5 Be6 12. Bd3 Rb8 13. O-O Nd5 14. Qd2 g6 15. Na3 {Owen,C (1768)-Vries, W (1706) ICCF 2019 0-1 (70)}) 4. e4 Be6 5. d3 (5. d4 Qd7 6. Nc3 O-O-O 7. Be3 f5 8. e5 Bb4 9. a3 Ba5 10. Qd3 Kb8 11. f4 Ne7 12. O-O-O b5 13. Bf2 Bb6 14. Be2 a6 15. Bf3 Bc4 16. Qe3 Nd5 {Siikaluoma,A (2551)-Raijmaekers,R (2460) ICCF 2009 1-0 (28)}) 5... Qd7 6. Be2 O-O-O 7. Nd2 Kb8 8. O-O f5 9. Nf3 Qe8 10. Bf4 fxe4 11. Ng5 Bf5 12. Re1 Bb4 13. c3 {Jenkins,R (2230)-Gräber,I (2251) ICCF 2017 1/2 (27)}) (1... b5 2. e4 Bb7 (2... Nc6 3. Bxb5 Bb7 4. d4 a6 5. Ba4 e6 6. d5 exd5 7. exd5 Nb8 8. O-O Nf6 9. c4 Be7 10. Qb3 Qc8 11. Re1 Ra7 12. Qe3 Qd8 13. Qxa7 O-O 14. Qxb7 {Züger,A-Riley,K (1469) ICCF 2016 1-0}) (2... c6 3. d4 g6 4. e5 h5 5. Bd3 f5 6. exf6 Nxf6 7. Bxg6# {1-0 (7) Kent,F-Zaleski,B ICCF 2019}) 3. Bxb5 ( 3. e5 a6 4. d4 e6 5. Bd3 c5 6. c3 d6 7. O-O Nd7 8. Nbd2 cxd4 9. cxd4 dxe5 10. dxe5 Nc5 11. Bc2 Ne7 12. Qe2 Nd5 13. Rd1 Be7 14. Nf1 O-O {Goffin,P (2318)-De Filippis,F (2420) ICCF 2011 1/2}) (3. Bd3 a6 4. O-O e6 5. a3 d5 6. e5 f6 7. b4 fxe5 8. Nxe5 Qg5 9. Re1 d4 10. f3 Bd6 11. Be4 Bxe4 12. d3 Qxe5 13. f4 Qf6 14. Rxe4 g6 {Wójcik,L-Fernandez,Q (1455) ICCF 2019 0-1 (42)}) 3... Bxe4 4. O-O (4. Nc3 Bb7 5. d4 e6 6. d5 Nf6 7. dxe6 fxe6 8. Qe2 Nc6 9. O-O Be7 10. Bxc6 Bxc6 11. Nd4 Bd5 12. Nxd5 Nxd5 13. Rd1 Qc8 14. Nf5 O-O 15. Rxd5 exf5 {Cisneros Rivera, C-Darias Mateos,A ICCF 2006 0-1}) 4... Nc6 (4... c6 5. Be2 e6 6. c4 Nf6 7. d4 h6 8. Bf4 Bh7 9. Nc3 Qb6 10. Qb3 d6 11. Qa3 Qa6 12. Qb3 Qb6 13. Na4 Qxb3 14. axb3 Nbd7 15. Nc3 a6 16. d5 {Nemec,Z (2224)-Feldis,Y (2116) ICCF 2018 1-0 (40)} ) 5. d4 Rb8 6. Ng5 Bg6 7. Nc3 Nf6 8. Re1 Bh5 9. f3 d5 10. Bxc6+ Nd7 11. Nxd5 e6 12. Rxe6+ fxe6 13. Nxe6 {Freire,D (1877)-Michas,J (1813) ICCF 2018 1-0}) (1... e6 2. g3 (2. d3 b6 (2... Nc6 3. Bf4 Bc5 4. e4 Nf6 5. Be2 O-O 6. O-O Re8 7. h3 b5 8. Nbd2 Bb7 9. c3 Na5 10. b4 e5 11. Bxe5 Bd6 12. Bxd6 cxd6 13. bxa5 d5 14. e5 {Nunnally,R-Lagarejos Santano,J ICCF 2007 1-0 (31)}) (2... c6 3. c4 Bb4+ 4. Bd2 c5 5. Nc3 Nf6 6. a3 Ba5 7. b4 Bc7 8. bxc5 O-O 9. g3 Na6 10. d4 b6 11. cxb6 axb6 12. Bg2 Rb8 13. O-O d5 14. cxd5 {Cabrera Trujillo,C (1580)-Whittle,P (1311) ICCF 2018 1-0}) (2... f5 3. b3 Nf6 4. Bb2 Be7 5. e4 fxe4 6. dxe4 Nxe4 7. Bxg7 Rg8 8. Bb2 Nc6 9. Nbd2 Bb4 10. c4 Nxd2 11. Nxd2 Qh4 12. Qe2 Nd4 13. Qd3 e5 14. g3 {Green,M (2102)-Woodhouse,S (2078) ICCF 2019 1/2 (32)}) (2... d5 3. Ng5 c5 4. c4 Nc6 5. Nxf7 Kxf7 6. e4 d4 7. Na3 e5 8. f4 Bd6 9. Nb5 Be7 10. Be2 Bh4+ 11. g3 Be7 12. fxe5 Nxe5 13. O-O+ Nf6 14. Bg5 {Oneill,B (1561)-Acosta,E (1585) ICCF 2017 0-1 (32)}) 3. e4 Ne7 4. Nc3 Bb7 5. g3 d5 6. Bg2 dxe4 7. Nxe4 Nbc6 8. O-O Nf5 9. c3 Be7 10. Re1 O-O 11. d4 a5 12. Bf4 a4 13. Qe2 Na5 {Munoz,L (1922) -Bulgarini Torres,M (2113) ICCF 2011 1/2}) (2. e3 Nc6 (2... Nf6 3. b3 b6 4. Bb2 Bd6 5. c4 Ne4 6. Bxg7 Nxf2 7. Kxf2 Rg8 8. Bb2 {1-0 (8) Wieczynski,M-Kondov,K ICCF 2019}) 3. Nc3 Nf6 4. d4 Bb4 5. Bd2 O-O 6. a3 Bxc3 7. Bxc3 d5 8. Bb5 Bd7 9. Bxc6 Bxc6 10. Qd3 Ne4 11. O-O a6 12. a4 f5 13. Bb4 Rf6 {Goodhand,I-White,R (1587) ICCF 2015 1-0 (32)}) (2. h3 Nf6 3. b3 d5 4. e3 b6 5. d4 Bb7 6. Bd3 c5 7. Bb2 Bd6 8. O-O O-O 9. Re1 Nbd7 10. c4 cxd4 11. exd4 dxc4 12. bxc4 Rc8 13. Nc3 Re8 {Green,M (2097)-Sepiol,Z (2079) ICCF 2019 1/2 (41)}) 2... f5 (2... Nc6 3. Bg2 Qf6 (3... Nf6 4. a3 Bc5 5. Nc3 d6 6. d4 Bb6 7. Bg5 h6 8. Be3 Bd7 9. h3 Qe7 10. Qd2 g5 11. g4 O-O-O 12. O-O-O d5 13. h4 Ba5 14. hxg5 Ne4 15. Qd3 {Traylor, B-Duncovich,M (1728) ICCF 2008 1-0 (26)}) 4. d3 Bc5 5. O-O b6 6. e4 Bb7 7. Nbd2 O-O-O 8. c3 h5 9. d4 Be7 10. Nc4 Qg6 11. Nce5 Qxe4 12. Nh4 Qh7 13. Nxf7 g5 14. Nxd8 {Dababneh,I (1688)-Krizanec,T ICCF 2016 1-0}) (2... b5 3. Bg2 Bb7 4. O-O c5 5. d4 cxd4 6. Nxd4 Bxg2 7. Kxg2 Qb6 8. a4 b4 9. e4 Nf6 10. e5 Nc6 11. Nxe6 Nxe5 12. Nxf8 Kxf8 13. f3 h5 14. Re1 {Alves,T (1727)-Davidson,J (2118) ICCF 2017 0-1 (39)}) (2... b6 3. d3 Bb7 4. Bg2 f5 5. Nbd2 d5 6. O-O Bc5 7. Nb3 Be7 8. Nbd4 Bc8 9. e4 c5 10. Ne2 fxe4 11. dxe4 Nf6 12. exd5 exd5 13. Nf4 Nc6 14. Ng5 {Gallimore,C (2161)-Terry,P (2051) ICCF 2020 1-0 (28)}) (2... c6 3. a3 d5 4. Bg2 Be7 5. d4 Nf6 6. Bf4 Nbd7 7. Nbd2 b6 8. O-O Ba6 9. b4 Nh5 10. Be5 f6 11. g4 fxe5 12. gxh5 e4 13. Ne5 Nxe5 14. dxe5 {Dawkins,B-Longden,R ICCF 2010 0-1}) (2... d6 3. d4 Ne7 4. c4 h6 5. Bg2 Ng6 6. O-O Nd7 7. Nc3 Be7 8. e4 c6 9. Re1 O-O 10. Be3 Nb6 11. b3 Bd7 12. d5 exd5 13. exd5 Bf6 14. Rc1 {Vermeulen,E (1640) -Francis,G ICCF 2008 0-1 (36)}) (2... Nf6 3. d3 Nc6 4. Bg2 d5 5. O-O Bd6 6. Nbd2 O-O 7. Re1 e5 8. e4 d4 9. h3 Be6 10. Ng5 Bd7 11. Nc4 Bb4 12. Bd2 Bxd2 13. Nxd2 h6 14. Ngf3 {Galanti,S (1628)-Pareschi,R ICCF 2007 0-1}) 3. Bg2 (3. e3 Nf6 4. Bg2 Be7 5. O-O O-O 6. Nc3 d5 7. b3 c5 8. d4 Nc6 9. Bb2 b6 10. Re1 Ne4 11. Qe2 Bd7 12. Rad1 Rc8 13. a3 c4 {0-1 (13) Benell,C-Maack,K ICCF 2010}) 3... Nf6 4. O-O c5 (4... Be7 5. d3 O-O 6. Nbd2 (6. b3 d6 7. d4 b6 8. Bb2 Bb7 9. c4 Ne4 10. Nc3 Bf6 11. e3 c5 12. Ne2 Nc6 13. Nf4 Qe8 14. h4 Rd8 15. Rb1 Qf7 16. d5 exd5 17. Bxf6 gxf6 {Brotherton,T (1950)-Deneuville,C (2169) ICCF 2016 1/2 (28)} ) 6... d5 7. c3 (7. b3 c5 8. Bb2 Nc6 9. e3 b6 10. Qe2 Ba6 11. c4 Qd7 12. a3 Bb7 13. Rad1 Rad8 14. Rfe1 Rfe8 15. h3 Qc8 16. Ng5 h6 17. Ngf3 Kh7 18. Ne5 Nxe5 { Beavan,R (1951)-Andrä,D ICCF 2012 0-1 (42)}) 7... c6 8. Qc2 Nbd7 9. c4 e5 10. cxd5 cxd5 11. e4 fxe4 12. dxe4 Nc5 13. Nxe5 Qd6 14. Nd3 {1/2 (14) Campbell,E (2101)-Daróczy,S (2100) ICCF 2014}) 5. c4 Nc6 6. Nc3 e5 7. d3 Be7 8. a3 O-O 9. b4 cxb4 10. axb4 Bxb4 11. Nd5 Be7 12. Be3 d6 13. Qb3 {Sowden,E (2304) -Deneuville,C (2163) ICCF 2011 1/2 (47)}) (1... h6 2. c4 (2. e4 e6 (2... Nc6 3. d4 d5 4. exd5 Qxd5 5. Nc3 Qd7 (5... Qe6+ 6. Be3 Qd6 7. Nb5 Qd8 8. Bf4 e5 9. Nxe5 Nxe5 10. Bxe5 Bd6 11. Bxg7 Rh7 12. Qe2+ Qe7 13. Qxe7+ Nxe7 14. Be5 Bxe5 15. dxe5 Nd5 16. c4 c6 17. Nd6+ {Kubis,F (1946)-Klein,J (1607) ICCF 2011 1-0 (35)}) 6. d5 Nd8 7. Ne5 Qf5 8. Bb5+ c6 9. f4 e6 10. dxc6 Bb4 11. c7+ Nc6 12. Qd8# {1-0 (12) Roth,P (1866)-Klein,J (1607) ICCF 2011}) (2... e5 3. d4 exd4 4. Nxd4 a6 5. Nc3 Nc6 6. Nxc6 bxc6 7. Bc4 Bc5 8. Bxf7+ Kxf7 9. Qh5+ Kf8 10. Qxc5+ d6 11. Qxc6 Bd7 12. Qc4 Ne7 13. O-O Ke8 14. Re1 {Bystrický st.,K (1737)-Gaman, M (1635) ICCF 2013 1-0}) 3. d4 (3. c4 d5 4. cxd5 exd5 5. exd5 Bd6 6. Bb5+ Nd7 7. O-O Ne7 8. Nc3 O-O 9. Bc4 Nb6 10. Bb3 Re8 11. d4 Ng6 12. a4 Qf6 13. Bc2 Bg4 14. Ne4 Qd8 {Daves,D-Torres,C ICCF 2014 1/2 (36)}) 3... d5 (3... b6 4. c3 Bb7 5. Bd3 d6 6. O-O Nf6 7. Re1 Nbd7 8. Qc2 Be7 9. Nbd2 O-O 10. e5 Nh5 11. Ne4 d5 12. Ned2 Nf4 13. Bh7+ Kh8 14. Nf1 g6 15. Bxf4 {Taylor,B (2009)-Giroux,M (2036) ICCF 2013 1-0 (27)}) 4. Nc3 (4. Nbd2 Nf6 5. e5 Nfd7 6. Bd3 c5 7. c3 Nc6 8. O-O g5 9. h3 h5 10. Re1 g4 11. hxg4 hxg4 12. Nh2 cxd4 13. cxd4 Rxh2 14. g3 Rh8 15. Qxg4 Qe7 {Sherwood,R (2336)-Yeo,G (2444) ICCF 2019 1-0}) 4... Nf6 5. Bd3 Bb4 6. e5 Ne4 7. Bd2 Bxc3 8. Bxc3 c5 9. Bxe4 dxe4 10. Ng1 cxd4 11. Qxd4 Qxd4 12. Bxd4 b6 13. Ne2 Bb7 {Magallanes,F (2504)-Gagliardi,V (2131) ICCF 2010 1-0 (42)}) (2. d4 g5 3. e4 (3. h3 Bg7 4. e4 Nf6 5. e5 Nd5 6. c4 Nb6 7. c5 Nd5 8. Bc4 c6 9. O-O b6 10. Nc3 Nxc3 11. bxc3 Ba6 12. Qb3 Bxc4 13. Qxc4 O-O 14. Rb1 b5 {Brodie,P (1796)-Woldmo,A (1839) ICCF 2018 1-0 (31)}) 3... Bg7 4. Bc4 d6 5. h3 Nc6 6. Be3 f5 7. Nh4 f4 8. Qh5+ Kd7 9. Qf7 Qf8 10. Qxf8 Bxf8 11. Ng6 Bg7 12. Nxh8 fxe3 13. fxe3 Nf6 {Novak,A (2156)-Okroznik,G ICCF 2012 1-0 (29)}) (2. Nc3 d6 3. e4 e5 4. d4 Nd7 5. Be2 c6 6. O-O a6 7. dxe5 dxe5 8. Bc4 Qf6 9. Be3 b5 10. Bd3 Be7 11. a3 Bd8 12. b3 Qg6 13. g3 Qf6 {Sweetland,D (1289)-Jacobs,G (1333) ICCF 2018 1-0 (48)}) (2. b3 Nf6 3. Bb2 c5 4. c4 Nc6 5. g3 d6 6. Bg2 Bd7 7. O-O e5 8. d3 g5 9. Nc3 Qa5 10. e3 O-O-O 11. a3 Be6 12. d4 Bf5 13. Nd5 Bg7 {Coope,D (1837)-Loison, F (1544) ICCF 2019 1-0 (28)}) (2. g3 c5 3. Bg2 Nc6 4. O-O Nf6 5. d3 d5 6. Nbd2 e5 7. e4 dxe4 8. Nxe4 Nxe4 9. dxe4 Be6 10. c3 Be7 11. Qe2 Qa5 12. Be3 Rd8 13. a3 O-O {Rhodes,J (2202)-Torres,C ICCF 2014 0-1 (29)}) 2... g5 (2... c5 3. g3 g5 4. Bg2 Bg7 5. O-O Nc6 6. d3 d6 7. Nc3 Be6 8. Qb3 Qd7 9. e3 Rb8 10. a4 Bh3 11. Rd1 Bxg2 12. Kxg2 g4 13. Ng1 h5 14. Nge2 {Olivo,O-Gagliardi,V (2131) ICCF 2010 0-1}) 3. d4 Bg7 4. Nc3 Nc6 (4... c5 5. d5 d6 6. Qc2 Nd7 7. Bd2 g4 8. Nh4 Bf6 9. g3 Bxh4 10. gxh4 Ne5 11. h3 h5 12. Ne4 Qb6 13. Bc3 Bd7 14. Bg2 Nh6 15. Ng3 O-O-O 16. Nxh5 {Pein,M-Wimmer,R ICCF 2008 1-0 (56)}) 5. d5 Ne5 6. Nxe5 Bxe5 7. g3 Nf6 8. Bg2 d6 9. O-O a6 10. Qd3 Bd7 11. Nd1 Nh7 12. f4 Bg7 13. Bd2 { Mehlhorn,U (2353)-Green,M (2037) ICCF 2017 1-0 (41)}) (1... g5 2. Nxg5 e5 3. d3 (3. d4 h6 4. Nh3 exd4 5. Qxd4 Nf6 6. Nc3 Nc6 7. Qf4 d5 8. Nb5 Bd6 9. Nxd6+ Qxd6 10. Qxd6 cxd6 11. Bf4 Bf5 12. O-O-O Nb4 13. e4 Nxe4 14. a3 Nxc2 {Masset, J-Desquiens,S (1933) ICCF 2011 1-0 (29)}) 3... h6 4. Nf3 Nc6 5. g3 d5 6. Bg2 Nf6 7. O-O Bc5 8. Nc3 d4 9. Ne4 Nxe4 10. dxe4 Be6 11. a3 Qd7 12. b4 Be7 13. b5 {Smail,J-Hey,B ICCF 2016 1/2 (78)}) (1... a5 2. e4 (2. Nc3 h5 3. h4 b6 4. a4 g6 5. e4 Bb7 6. Bd3 Bg7 7. O-O Nf6 8. Qe2 Ng4 9. Bc4 e6 10. Ng5 O-O 11. d4 Bxd4 12. Nb5 Bc5 13. Be3 Bd6 {Jackson,M (1551)-Reid,W (1559) ICCF 2018 0-1 (50)}) 2... b6 (2... f6 3. d4 Nc6 4. Nc3 e5 5. Be3 exd4 6. Nxd4 Nxd4 7. Qxd4 b6 8. Bc4 Ne7 9. e5 Nc6 10. Qd5 Bb7 11. Qf7# {1-0 (11) Lagergren,H (2017)-Ylönen,O ICCF 2009}) 3. d4 g6 4. c4 h5 5. Nc3 Bb7 6. Be2 Bg7 7. Be3 e6 8. Qd2 h4 9. h3 a4 10. Bg5 Bf6 11. Bf4 d6 12. O-O Ra5 13. Bd1 {Cabrera Trujillo,C (1563)-Reid,W ICCF 2018 1-0 (52)}) (1... Na6 2. e4 (2. g3 g5 3. d3 c5 4. Bxg5 Nb4 5. e4 h6 6. Bf4 c4 7. Be2 cxd3 8. cxd3 Qc7 9. Bxc7 Bg7 10. Qb3 Bxb2 11. Qxb2 Nc6 12. Qxh8 e5 13. Qxg8+ Ke7 {Carrington,A (1509)-Dahlberg,S ICCF 2019 1-0}) 2... b6 (2... d5 3. exd5 Qxd5 4. Nc3 Qa5 5. d4 Bg4 6. h3 Bh5 7. a3 O-O-O 8. Be2 Bxf3 9. Bxf3 e5 10. d5 f5 11. Bg5 Nf6 12. O-O c6 13. Bh5 Nc7 14. Qf3 {Pripoae,N (2236)-Enescu, C (2366) ICCF 2005 0-1 (63)}) 3. d4 c6 4. Be2 e6 5. O-O Ne7 6. Nc3 Nc7 7. h4 Bb7 8. Re1 d5 9. Bd3 a6 10. Qe2 c5 11. exd5 Nexd5 12. Nxd5 Qxd5 13. c4 { Sodomski,A (2228)-Green,M (1995) ICCF 2013 1-0 (53)}) (1... c6 2. g3 (2. Nc3 d5 3. e3 Bf5 4. Bd3 Bg4 5. h3 Bh5 6. O-O Nd7 7. e4 d4 8. g4 Bg6 9. Nxd4 h5 10. g5 Ne5 11. Nf3 Nxd3 12. cxd3 e5 13. Qe2 f6 {Bourgault,J (1824)-Egger,R ICCF 2018 0-1 (34)}) (2. d3 d5 3. h3 Nf6 4. Bf4 e6 5. e3 Bd6 6. d4 Bxf4 7. exf4 O-O 8. Nbd2 Qb6 9. Rb1 Qc7 10. g3 b6 11. Bd3 c5 12. O-O c4 13. Be2 b5 {Green,M (2115) -Ilonen,I (2334) ICCF 2019 1/2 (45)}) 2... Qc7 (2... Nf6 3. Bg2 g6 4. b3 Bg7 5. Bb2 O-O 6. O-O a5 7. d3 a4 8. b4 d6 9. c4 Bg4 10. a3 Nbd7 11. Nc3 Nb6 12. Qc2 e5 13. h3 Bxf3 14. Bxf3 {Zanolin,H (2126)-Pingitzer,H ICCF 2010 1-0 (35)}) 3. Bg2 g6 4. O-O h6 5. e4 h5 6. h4 Bh6 7. Re1 d6 8. d3 Bg4 9. Nbd2 Bxf3 10. Nxf3 Bxc1 11. Rxc1 Nh6 12. d4 Nd7 13. c4 {Carrington,A (1550)-Ipekyilmaz,E (1530) ICCF 2016 0-1}) (1... f6 2. d4 (2. e4 c6 (2... d5 3. Nc3 c6 4. exd5 cxd5 5. Bb5+ Kf7 6. Nh4 g5 7. Qh5+ Kg7 8. Bd3 gxh4 9. g4 e5 10. Bf5 d4 11. Ne4 Na6 12. Rg1 Nb4 13. g5 Nxc2+ 14. Kd1 {Sládek,J-Ziman,S ICCF 2008 0-1}) (2... e6 3. d4 Qe7 4. Bd3 c6 5. c4 c5 6. O-O Nc6 7. d5 Nb8 8. Nc3 d6 9. dxe6 Bxe6 10. Nd5 Qf7 11. b3 Nc6 12. a3 Bxd5 13. exd5 Nce7 14. Re1 {Knox,A (1314)-Miedema,H (940) ICCF 2018 1-0}) 3. d4 Qb6 4. b3 e6 5. Bb2 Qa5+ 6. Bc3 Bb4 7. Bxb4 Qxb4+ 8. c3 Qd6 9. Bc4 b5 10. Be2 a5 11. O-O Bb7 12. e5 fxe5 13. Nxe5 Qf8 {Meijer,Y (1939) -Byrne,V (1631) ICCF 2012 1-0 (33)}) (2. c4 e6 3. e4 d5 4. exd5 exd5 5. cxd5 Qxd5 6. Nc3 Qh5 7. d4 Bd6 8. Be2 Nc6 9. Ng5 Qh4 10. Nge4 Nge7 11. d5 Nb4 12. g3 Qh3 13. Qa4+ Nec6 {Droualliere,P (2200)-Akrill,R ICCF 2014 1-0}) (2. g3 e5 3. Bg2 d6 4. d3 Nc6 5. O-O Bg4 6. Nbd2 Nh6 7. Nb3 b6 8. Bxh6 gxh6 9. a3 Qd7 10. Qd2 O-O-O 11. a4 h5 12. a5 a6 13. axb6 cxb6 {Hobson,N (1714)-Melquiades,J ICCF 2011 1-0}) 2... Nc6 (2... d5 3. c4 e6 4. Nc3 c6 5. a3 Ne7 6. c5 g5 7. e3 g4 8. Nd2 h5 9. Be2 f5 10. f3 a6 11. fxg4 Bg7 12. gxh5 Bh6 13. Nf3 Rg8 14. g3 { Schulz,P-Heineccius,A (1564) ICCF 2016 1-0 (28)}) 3. d5 Ne5 4. e4 c6 5. Nc3 d6 6. Be2 f5 7. Nxe5 Nf6 8. Nf3 g6 9. dxc6 e6 10. Bb5 Ke7 11. exf5 gxf5 12. O-O Qc7 13. cxb7 {Harada,M (1968)-Nagahama,M (1248) ICCF 2019 1-0}) (1... a6 2. c4 (2. g3 Nf6 3. Bg2 d5 4. c3 Nc6 5. d4 Bf5 6. Ne5 Nxe5 7. dxe5 Ne4 8. g4 Bg6 9. f3 e6 10. fxe4 Qh4+ 11. Kf1 dxe4 12. e3 h5 13. h3 Qg5 {García Soriano, G-Santamaría Quintana,I (1852) ICCF 2007}) 2... b5 3. e3 c6 4. d4 Bb7 5. Nbd2 e6 6. Bd3 Nf6 7. O-O Bd6 8. e4 Bf4 9. e5 Ng4 10. Ne4 O-O 11. Bxf4 {1-0 (11) Disque,P-McLaughlin,E (1479) ICCF 2017}) (1... h5 2. d4 (2. e4 d6 3. d4 h4 4. h3 e6 5. c4 Nc6 6. Nc3 Be7 7. Be3 g5 8. Qd2 f6 9. Be2 Nh6 10. O-O b6 11. d5 Ne5 12. Nd4 Kf7 13. f4 Ng6 {Pérez Rodríguez,R-Knouse,C ICCF 2013 1-0}) 2... d5 3. c4 dxc4 4. e4 c5 5. d5 a6 6. Bxc4 b5 7. Bb3 Bg4 8. h3 Bxf3 9. Qxf3 Nd7 10. O-O g6 11. Bf4 Bg7 12. Nc3 Bd4 13. Rae1 {Clark,R (1911)-Horváth,J ICCF 2017 1-0 (47)}) (1... Nh6 2. d4 g6 3. e4 d6 4. Bc4 e6 5. Bg5 f6 6. Bh4 d5 7. exd5 exd5 8. Qe2+ Kf7 9. Bb3 c6 10. O-O Bg7 11. c4 Re8 12. Qd2 dxc4 13. Bxc4+ {Swahnberg, L (2109)-Cipressi,N (2198) ICCF 2009 1/2 (60)}) (1... d6 2. g3 (2. b3 e5 3. d3 (3. e4 Nf6 4. d3 Be7 5. Bb2 Nc6 6. h3 O-O 7. Be2 h6 8. O-O Re8 9. Nbd2 a6 10. a4 Bd7 11. Nc4 Qc8 12. Ne3 Bf8 13. Nh2 Ne7 14. Bc1 a5 {Toye,D (1650)-Smith,A (1606) ICCF 2018 1/2}) 3... Nc6 (3... g6 4. Bb2 Bg7 5. g3 f5 6. Bg2 Qe7 7. Nc3 {0-1 (7) Owens,J (2276)-Brotherton,T (2172) ICCF 2017}) (3... h6 4. Bb2 Nf6 5. e4 Be7 6. Be2 Nc6 7. O-O Be6 8. Nbd2 Qd7 9. a3 O-O {1/2 (9) Aiken,J-Dumitru,I (1680) ICCF 2019}) 4. Bb2 g5 5. h3 Bg7 6. c4 h5 7. g3 g4 8. hxg4 hxg4 9. Rxh8 Bxh8 10. Nfd2 f5 11. Bg2 Be6 12. Nc3 Nge7 13. Rb1 a5 {Owens,J (2113)-Barkov,K (2202) ICCF 2016 1/2 (35)}) (2. b4 e5 3. Bb2 (3. d3 f5 4. c4 Nf6 5. Nc3 e4 6. Nd2 exd3 7. exd3 Be7 8. g3 c6 9. Bg2 O-O 10. Nb3 d5 11. c5 Na6 12. a3 Nc7 13. O-O Bd7 14. Re1 g6 {Ruiz,G (1755)-Perry,W (2235) ICCF 2018 1-0 (58)}) 3... Be6 (3... f5 4. e3 Nf6 5. Be2 Be7 6. O-O O-O 7. d3 e4 8. Nd4 Nc6 9. Nxc6 bxc6 10. c4 d5 11. dxe4 fxe4 12. a3 a5 13. b5 cxb5 14. cxb5 Be6 15. a4 {Fournier,F (2113)-Hoeher,C (2113) ICCF 2015 1-0}) 4. e3 a6 5. Be2 b5 6. O-O Qf6 7. a3 Nd7 8. d3 Be7 9. Nbd2 Qg6 10. Rc1 Bh3 11. g3 Bxf1 12. Qxf1 h5 13. c4 h4 {Wilson,N (1578)-Jacobs,G ICCF 2015 1-0 (45)}) (2. c3 c5 (2... Nf6 3. g3 e5 4. Bg2 Be7 5. O-O O-O 6. d3 c6 7. Nbd2 Qc7 8. e4 a5 9. Re1 a4 10. Nc4 Re8 11. Ne3 h6 12. Bd2 Be6 13. c4 Bf8 14. Qc2 {Green,M (2110)-Gosling,B (1887) ICCF 2020 1/2 (38)}) 3. e3 Nf6 4. d4 Nbd7 5. Nbd2 g6 6. Bc4 Bg7 7. O-O O-O 8. Qe2 a6 9. e4 b5 10. Bd3 Nh5 11. g3 c4 12. Bc2 Qc7 13. a4 Bb7 {Green,M (2097)-Coope,D (1837) ICCF 2019 1-0 (34)}) (2. e3 e5 3. h4 Bg4 4. Nc3 Nf6 5. Be2 Be7 6. d4 Nbd7 7. O-O Bf5 8. dxe5 dxe5 9. b3 c6 10. Bb2 Qc7 11. Bd3 e4 12. Nd4 Bg6 13. Be2 h5 {Duman,C (1970)-Tsang,H ICCF 2009 0-1}) 2... e5 (2... Bg4 3. Bg2 Nf6 (3... h6 4. O-O Nc6 5. d4 e6 6. c4 Nf6 7. d5 Ne7 8. dxe6 fxe6 9. Qb3 b6 10. Nc3 d5 11. Ne5 Bf5 12. cxd5 Nexd5 13. Qb5+ Nd7 14. Nxd5 exd5 15. Qxd5 {Baer,S (1708)-Agrawal,R (1712) ICCF 2019 1-0}) 4. O-O Nc6 5. d4 d5 6. Ne5 Nxe5 7. dxe5 Nd7 8. Qxd5 e6 9. Qd4 Bxe2 10. Re1 Ba6 11. c4 Nb6 12. Qxd8+ Rxd8 13. Bg5 Be7 14. Bxe7 {Kemperman,H (1705)-Friedrich,R ICCF 2019 1-0}) (2... c6 3. c4 (3. Bg2 Nd7 4. d4 h6 5. O-O g5 6. e4 Bg7 7. b3 Nf8 8. Bb2 Ng6 9. Nbd2 g4 10. Ne1 h5 11. Nd3 h4 12. Nc4 Nh6 13. Qe2 Qc7 14. Rad1 Bd7 {Whittaker,I (2083)-Eccles,A ICCF 2020 1-0}) 3... c5 4. Nc3 Nf6 5. Bg2 e6 6. O-O Be7 7. d3 O-O 8. Rb1 Nc6 9. a3 a6 10. b4 Bd7 11. bxc5 dxc5 12. Rxb7 Rb8 13. Rxb8 Qxb8 14. Bf4 {Cacheiro Martinez,M-Verslype,S (1702) ICCF 2013 1/2 (26)}) (2... b6 3. Bg2 Bb7 4. O-O e5 5. d3 h6 6. c4 Be7 7. Nc3 Nf6 8. Qc2 Nbd7 9. Rd1 a6 10. Nxe5 Bxg2 11. Nxd7 Qxd7 12. Kxg2 h5 13. Bg5 Ng8 14. Bxe7 {Lima,A (1909)-Silva,A (1727) ICCF 2019 1-0 (39)}) (2... c5 3. Bg2 Nc6 4. d4 Bf5 5. O-O g6 6. d5 Nb4 7. Ne1 Nf6 8. e4 Bd7 9. c3 Na6 10. a4 Nc7 11. Na3 Bg7 12. Nd3 O-O 13. Re1 b6 14. Bg5 {Baumann,W (2112)-Visser,A (2027) ICCF 2014 1-0 (33)}) (2... Bf5 3. Bg2 Nf6 4. d3 h6 5. e4 Bg4 6. h3 Bh5 7. g4 Bg6 8. e5 Nd5 9. Nc3 c6 10. O-O Nxc3 11. bxc3 dxe5 12. Nxe5 Bh7 13. Bd2 f6 14. Nf3 { Reimhagen,M-Ramos,C (1630) ICCF 2010 1/2 (38)}) (2... h6 3. Bg2 e5 4. Nc3 Nf6 5. b3 Bd7 6. Bb2 Bc6 7. d3 Na6 8. e4 g6 9. Qd2 Qd7 10. a3 Qe6 11. b4 Bd7 12. b5 Nc5 13. a4 d5 14. Nxd5 {Giessing,K (1373)-Dumitru,I (1530) ICCF 2020 0-1 (50)}) 3. d3 (3. Bg2 Bg4 (3... c6 4. O-O Qf6 5. d3 h6 6. Nbd2 Be7 7. e4 Qg6 8. d4 Nd7 9. Re1 h5 10. h4 Bf6 11. Nf1 Nb6 12. b3 Bg4 13. Ba3 Nd7 14. Bxd6 exd4 15. Qd2 { Carrington,A (1442)-Jacobs,G (1423) ICCF 2017 1-0 (31)}) (3... f5 4. O-O Be7 5. c4 Nf6 6. d4 e4 7. Ng5 O-O 8. Nc3 c6 9. h4 Qb6 10. d5 {1-0 (10) Figlio,G (2431) -Yui Pineda,G (2268) ICCF 2007}) (3... g6 4. O-O Bg7 5. d3 f5 6. Nc3 Nf6 7. Bg5 h6 8. Bd2 O-O 9. e4 Nc6 10. Nd5 fxe4 11. Nxf6+ Qxf6 12. Ne1 exd3 13. Nxd3 Be6 14. Bc3 Bc4 15. b3 {Nunnally,R (1742)-Fuller,T ICCF 2012 1-0 (45)}) 4. d4 e4 ( 4... f6 5. O-O f5 6. dxe5 Nc6 7. Nd4 dxe5 8. Nxc6 bxc6 9. h3 Bh5 10. Bxc6+ Kf7 11. Qd5+ Qxd5 12. Bxd5+ Kf6 13. Bxa8 Ne7 14. Nc3 Nc8 15. Bh1 Bc5 16. e4 { Lloyd,G (2170)-Magill,R ICCF 2009 1-0 (32)}) 5. Nfd2 d5 6. c4 c6 7. Qa4 dxc4 8. Nxe4 Qxd4 9. O-O Bxe2 10. Re1 Qd3 11. Bf4 Be7 12. Nbc3 {1-0 (12) Schwarte,J (2220)-Pereyra,D (1584) ICCF 2017}) 3... Nc6 (3... Be7 4. c4 (4. Bg2 Nc6 5. O-O Nf6 6. e4 O-O 7. Be3 d5 8. exd5 Nxd5 9. Bd2 Bf6 10. c3 Bf5 11. Qc2 Re8 12. Re1 Qd7 13. Na3 Nb6 14. Bf1 Rad8 15. Re3 Bg4 {Reyes Cortés,R (1648)-Ramos Mora,J (1782) ICCF 2018 0-1 (34)}) 4... Nc6 5. Nc3 Bg4 6. Bg2 Qd7 7. O-O h5 8. Ng5 Bxg5 9. Bxg5 f6 10. Qb3 Nge7 11. Be3 O-O-O 12. Nd5 Rde8 13. Nxe7+ Rxe7 14. Bxa7 Bh3 15. Bd5 {Rouse Pasara,C (1983)-Ruiter,T (2121) ICCF 2011 1-0 (39)}) (3... Bg4 4. Bg2 Bxf3 5. exf3 d5 6. O-O h5 7. f4 exf4 8. Bxf4 h4 9. Re1+ Ne7 10. c4 h3 11. Bxd5 c6 12. Nc3 cxd5 13. Nb5 dxc4 14. Nd6+ Kd7 15. dxc4 {Zaugg,B (1847) -Pedersen,H (1364) ICCF 2013 1-0}) (3... f5 4. Bg2 Nf6 5. Nbd2 Be7 6. O-O O-O 7. c4 Nc6 8. Ne1 Be6 9. Nc2 d5 10. cxd5 Nxd5 11. a3 a5 12. Nc4 Qd7 13. e4 fxe4 14. dxe4 Nf6 15. Qxd7 {Tranquillo,M (1820)-Oker,B (1765) ICCF 2014 0-1 (42)}) ( 3... Nf6 4. e4 Bg4 5. Bg2 c5 6. Nbd2 Qa5 7. O-O Nc6 8. Nc4 Qa6 9. Ne3 Bh5 10. c3 Ng4 11. Nd5 g6 12. Nc7+ Kd8 13. Nxa6 f5 14. Nxc5 dxc5 15. a3 {García Velayos,C (1657)-Sanchez Aguirregomezcorta,X (1297) ICCF 2017 1-0 (29)}) (3... Qe7 4. Bg2 f5 5. O-O Be6 6. Nbd2 Nd7 7. Nc4 O-O-O 8. Na5 d5 {0-1 (8) Oliveira da Fonseca,J-Pereyra,D (1692) ICCF 2016}) 4. Bg2 b6 (4... Bg4 5. e4 Nd4 6. Nbd2 Qf6 7. c3 Nc6 8. O-O g6 9. Nc4 O-O-O 10. Bg5 Qe6 11. Bxd8 Kxd8 12. Ng5 Qd7 13. Nxf7+ Kc8 14. Qb3 Qxf7 15. Nxd6+ Kd7 16. Nxf7 {García Velayos,C (1657)-Sanchez Aguirregomezcorta,X (1297) ICCF 2017 1-0}) (4... h6 5. c4 (5. e4 g5 6. Nc3 Bg4 7. h3 Bd7 8. Be3 Nf6 9. Qe2 Qe7 10. Nd5 Nxd5 {0-1 (10) Fawcett,D-Pereyra,D (1601) ICCF 2017}) 5... Bg4 6. Nc3 Qd7 7. h3 Bxf3 8. Bxf3 O-O-O 9. Qa4 Nge7 10. e3 f5 11. b4 a6 12. b5 Nb8 13. bxa6 bxa6 14. Qb3 c6 15. Na4 Qa7 16. Rb1 { Thompson,E (1889)-Martin,N (1930) ICCF 2010 1-0 (27)}) 5. d4 Bg4 6. d5 Qf6 7. dxc6 Ke7 8. Bg5 Ke6 9. Bxf6 gxf6 10. Nh4 d5 11. Qxd5+ Ke7 12. Qe4 Ke8 13. Nc3 Bh6 14. Qxg4 Rd8 15. O-O Rd4 16. Qc8+ Ke7 17. Nf5# {1-0 (17) Williams,B-Young, T ICCF 2017 Unusual lines after 1 Nf3 and-King's Indian Attack}) (1... Nc6 2. b3 (2. g3 e5 (2... e6 3. Bg2 d5 (3... f5 4. O-O b6 5. d3 Bb7 6. Nbd2 Qe7 7. e4 O-O-O 8. Re1 Nh6 9. Nf1 Qf6 10. Bg5 Qxb2 11. Bxd8 Kxd8 12. Qd2 {1-0 (12) Gawne, M-Benstock,D ICCF 2013}) 4. d4 Bd6 5. O-O Nge7 6. Nbd2 O-O 7. c4 Ng6 8. e3 Be7 9. cxd5 exd5 10. Nb3 Bd6 11. Re1 Bf5 12. Nfd2 Nb4 13. e4 dxe4 14. Nxe4 { Jones,P-Bray,P ICCF 2017 1/2 (28)}) (2... b5 3. Bg2 d5 4. O-O h5 5. d3 f6 6. Nbd2 g5 7. Nb3 h4 8. Nbd4 h3 9. Nxc6 Qd6 10. Bh1 Qxc6 11. Nd4 Qd7 12. c3 e5 13. Nc2 Nh6 14. e4 {Hobson,N (1734)-Byrne,V (1685) ICCF 2010 1-0 (52)}) (2... g6 3. Bg2 Bg7 4. c3 b6 5. O-O Bb7 6. d4 Nf6 7. Ne1 Qc8 8. Bg5 d6 9. Bxf6 Bxf6 10. e4 O-O 11. f4 e6 12. Kh1 Ba6 13. Rf2 e5 14. fxe5 {Knox,A (1349)-Armstrong,J (1545) ICCF 2017 0-1 (61)}) 3. d3 (3. Bg2 e4 4. Ng1 (4. Ng5 Qxg5 5. O-O d5 6. e3 Be6 7. d4 f5 8. Re1 Bd6 9. f4 Qh6 10. Nc3 a6 11. h3 g5 12. fxg5 Qxg5 13. Ne2 O-O-O 14. Nf4 Bd7 15. Nxd5 Nf6 {Carrington,A (1606)-Howell,D (1632) ICCF 2014 0-1 (30)}) 4... d5 5. c4 Nf6 6. cxd5 Qxd5 7. Nc3 Qf5 8. Nh3 Bd6 9. d3 exd3 10. exd3 Qa5 11. Be3 O-O 12. O-O Be5 13. Ng5 Bg4 14. Qc1 Rad8 {Rice,R (1418)-Stánitz,A (2106) ICCF 2019 0-1 (48)}) (3. c4 d6 (3... e4 4. Nh4 Nf6 5. Bg2 d6 6. Nc3 g5 7. Nf3 exf3 8. Bxf3 Bh3 9. e3 Qd7 10. a3 O-O-O 11. b4 Ne5 12. Be2 Qc6 13. Rg1 Bg4 14. Bxg4+ Nfxg4 15. Nb5 {Schaffert III,W-Gajewski,S ICCF 2011 0-1}) (3... Bc5 4. Nc3 d6 5. Bg2 f5 6. O-O Nf6 7. a3 a5 8. e3 O-O 9. d4 Ba7 10. b3 e4 11. Nd2 Bd7 12. Bb2 Ne7 13. f3 exf3 14. Nxf3 c6 15. Qd3 {Schweer,C (2419)-Evans,S (1717) ICCF 2015 1/2 (28)}) 4. d3 h6 5. Bg2 Nf6 6. b3 Be7 7. O-O O-O 8. Nc3 a6 9. Bb2 Be6 10. h3 Nh7 11. Kh2 f5 12. d4 e4 13. d5 exf3 14. exf3 Bd7 {Anderson, R-Pettigrew,S (1385) ICCF 2020 1-0 (29)}) (3. d4 Bd6 4. dxe5 Nxe5 5. Bg2 Nf6 6. Nxe5 Bxe5 7. f4 Bd6 8. e4 Bc5 9. e5 Qe7 10. Qe2 Ng8 11. Nc3 c6 12. Ne4 Nh6 13. Be3 Bxe3 14. Nd6+ Kd8 {Owens,J (1300)-Horacek,D ICCF 2009 1-0}) (3. e3 a6 4. Ke2 d5 5. d3 Bg4 6. h3 Bxf3+ 7. Kxf3 e4+ 8. Kg2 Nf6 9. dxe4 Ke7 10. exd5 Qxd5+ 11. Qxd5 Nxd5 12. e4 Nb6 13. Bf4 Kd7 14. Kh2 Bc5 {Rumyantsev,V (2134) -Babarykin,V (1686) ICCF 2017 1-0 (40)}) 3... Bc5 (3... Bb4+ 4. c3 Be7 5. Bg2 d5 6. Nbd2 Nf6 7. e4 dxe4 8. dxe4 Qd3 9. Qe2 Qxe2+ 10. Kxe2 b6 11. Nc4 Ba6 12. b3 O-O {0-1 (12) Lindgaard,T (1638)-Spiliopoulos,V (1535) ICCF 2017}) (3... g6 4. Bg2 Bg7 5. O-O d6 6. c3 Nge7 7. b4 Nxb4 8. cxb4 e4 9. d4 exf3 10. Bxf3 O-O 11. Bb2 Bh3 12. Re1 c6 13. a4 a5 14. b5 cxb5 15. axb5 {Johnston,A (2031)-Henri, J (2337) ICCF 2007 0-1 (52)}) (3... h5 4. c4 Nf6 5. Bg2 d5 6. cxd5 Nxd5 7. Nc3 Nxc3 8. bxc3 Bc5 9. O-O O-O 10. Rb1 Qf6 11. Ng5 Bb6 12. Qa4 Bg4 13. h3 Bf5 14. Qh4 Bg6 15. Bf3 {Van Reybrouck,H (1850)-Baumann,W (2013) ICCF 2009 1-0 (60)}) ( 3... h6 4. Bg2 Nf6 5. O-O Bc5 6. c3 d6 7. e4 a6 8. Nbd2 O-O 9. Nc4 Be6 10. Ne3 b5 11. Qc2 Qd7 12. Re1 Rad8 13. b4 Bb6 14. a4 Ne7 15. Bd2 {Fortin,M (1630) -Howell,D ICCF 2011 1-0 (35)}) 4. Bg2 d6 (4... a6 5. O-O d6 6. a3 Nf6 7. b4 Ba7 8. Bb2 O-O 9. c4 Bg4 10. Nbd2 Qc8 11. h3 Bxh3 {0-1 (11) Vtorykh,D-Asi,E ICCF 2019}) 5. O-O Bg4 (5... Nf6 6. h3 O-O 7. Nc3 h6 8. Na4 Bb6 9. Nxb6 axb6 10. e4 Nh7 11. d4 exd4 12. Nxd4 Ng5 13. Bxg5 Qxg5 14. Re1 Re8 15. a3 Bd7 16. c4 Qe5 17. Nb5 {Stone,D (1699)-Strobehn,A (1405) ICCF 2018 0-1}) 6. Nc3 Qd7 7. Ne4 Bh3 8. Nxc5 dxc5 9. Be3 b6 10. c4 Nf6 11. Bg5 Bxg2 12. Kxg2 Qe6 13. Qa4 O-O { McLaughlin,E (1694)-Laaman,T ICCF 2009 0-1 (39)}) (2. Nc3 g6 3. d4 Bg7 4. e3 d6 5. Be2 Nf6 6. O-O d5 7. h3 O-O 8. Bd2 Ne4 9. a3 e5 10. dxe5 {1-0 (10) Saint Louis,P (1644)-Vasiliev,M ICCF 2013}) (2. b4 b6 3. b5 Nb8 4. e4 Bb7 5. Nc3 c5 6. Bc4 d6 7. Ng5 e6 8. f4 h6 9. Nxf7 Kxf7 10. f5 Kf6 11. O-O e5 12. Qh5 { 1-0 (12) Dam,J (2075)-Vaessen,J (1194) ICCF 2019}) (2. e3 d6 3. Bd3 e5 4. e4 Nf6 5. c3 d5 6. Qe2 dxe4 7. Bxe4 Nxe4 8. Qxe4 Be6 9. Nxe5 Nxe5 10. Qxe5 Qd3 11. Kd1 O-O-O 12. Re1 Bf5 13. Na3 Bxa3 {Ladd,K-Petcu,D ICCF 2007 0-1}) (2. g4 e5 3. Bg2 f6 4. Nc3 d5 5. O-O Bxg4 6. Nxd5 Qxd5 7. Nh4 Qd7 8. f3 Be6 9. d3 O-O-O 10. Be3 g5 11. f4 gxh4 12. Be4 b6 13. c4 Nd4 {Latta,D-Gunning,E ICCF 2014 0-1}) 2... e5 (2... e6 3. Bb2 Nf6 4. c4 (4. g3 Bc5 5. Bg2 d5 6. d4 Be7 7. O-O O-O 8. Nbd2 Bd7 9. c4 a5 10. a3 Qc8 11. Ne5 a4 12. b4 Rd8 13. Nxd7 Qxd7 14. Qc2 dxc4 15. Nxc4 h6 {Wilson,G (1882)-Brodie,P (1915) ICCF 2014 1-0 (33)}) 4... Ng4 5. h3 Nf6 6. Nc3 Bc5 7. d4 Bb4 8. Qc2 Nh5 9. e3 g6 10. Be2 d5 11. O-O Qd6 12. Nb5 Qe7 13. a3 Ba5 14. b4 {Waud,D-Sutcliffe,P (1544) ICCF 2017 1-0}) (2... f6 3. Bb2 e5 4. d3 Nh6 5. g3 Bc5 6. Bg2 Ng4 7. O-O d5 8. h3 Nh6 9. c4 d4 10. a3 Be6 11. b4 Be7 12. Nbd2 Qd7 13. Kh2 g5 14. b5 {Aiken,J-Dumitru,I (1647) ICCF 2019 0-1 (28)}) 3. d3 (3. d4 e4 4. Ne5 Nxe5 5. dxe5 d5 6. exd6 Bxd6 7. Bb2 Nf6 8. Nc3 O-O 9. Qd4 c5 10. Qd2 Be5 11. O-O-O Qxd2+ 12. Rxd2 e3 13. fxe3 Bxc3 14. Bxc3 Ne4 {Rumyantsev,V-Sychov,A ICCF 2007 0-1 (60)}) 3... d5 (3... Bb4+ 4. c3 Be7 5. g3 Nf6 6. Bg2 O-O 7. O-O d6 8. Bb2 Be6 9. Nbd2 Bf5 10. e4 Bd7 11. Qc2 Bg4 12. Nc4 b5 13. Ne3 Be6 14. d4 Na5 15. d5 {Aiken,J-Kreveld,F (1151) ICCF 2019 0-1}) 4. Bb2 Bd6 5. Nbd2 Nf6 6. e3 (6. e4 d4 7. Be2 Be6 8. O-O h6 9. c3 Bc5 10. cxd4 Bxd4 11. Nxd4 Nxd4 12. Nf3 Qd6 13. Nxd4 exd4 14. f4 Qb6 15. e5 Nd5 16. Qc1 c5 {0-1 (16) Aiken,J-Budeanu,P ICCF 2019}) (6. g3 O-O 7. Bg2 Re8 8. O-O Bf8 9. Re1 e4 10. Nd4 e3 11. fxe3 Rxe3 12. Nxc6 bxc6 13. Bd4 Re8 14. e4 dxe4 15. Bxf6 Qxf6 16. Nxe4 Qd4+ 17. Kh1 Be6 {Coope,D (1814)-Evans,S (2201) ICCF 2019 1/2 (30)}) 6... O-O 7. Be2 Qe7 8. O-O Bf5 9. Nh4 Be6 10. Nhf3 Rad8 11. c4 e4 12. dxe4 dxe4 13. Nd4 Nxd4 14. Bxd4 Bf5 15. Qc2 b6 16. Rad1 Nd7 17. Rfe1 Nc5 18. Bxc5 Bxc5 19. Nf1 Bd6 20. Rd5 Be6 21. Rd4 f5 22. Red1 g6 23. f3 exf3 24. Bxf3 Bc5 25. Rxd8 Rxd8 26. Rxd8+ Qxd8 27. g3 Qd6 28. Kg2 Qe5 29. Qd2 Kg7 30. a4 a5 31. Bc6 Qf6 {1/2 (31) Tibbert,P (1755)-Martindale,D (2201) ICCF 2013 Unusual lines after 1 Nf3 and-King's Indian Attack}) 2. e4 (2. b3 Nf6 (2... d6 3. Bb2 (3. d4 e6 4. Bf4 Nf6 5. e3 Be7 6. Nc3 O-O 7. Bd3 Nc6 8. O-O Nh5 9. Bc4 Bf6 10. Ne2 g5 11. Bg3 Kh8 12. c3 Qe8 13. b4 e5 14. Re1 Qg6 {Stoner,E (1669) -Civan,E (1705) ICCF 2008 1/2 (33)}) 3... e5 (3... b6 4. e3 Bb7 5. Nh4 e6 6. Qh5+ g6 7. Nxg6 {1-0 (7) Ho,A-Bearce,H (1731) ICCF 2008}) 4. c4 Nf6 5. g3 Be7 6. Bg2 c6 7. O-O a5 8. d3 Na6 9. Nbd2 O-O 10. a3 Be6 11. Qc2 Nd7 12. Bc3 g5 13. b4 g4 14. Ne1 {MacMillen,A (1829)-Carr,T ICCF 2014 0-1 (41)}) (2... e6 3. c4 Nf6 4. g3 Nc6 5. Bb2 Bd6 6. Bg2 {Coope,D (1885)-Houston Smith,D (1838) ICCF 2020}) 3. Bb2 e6 (3... g6 4. Bxf6 (4. g3 Bg7 5. Bg2 O-O 6. O-O b6 7. c4 Bb7 8. Nc3 Na6 9. d3 d6 10. e4 fxe4 11. Ng5 Nc5 12. d4 h6 13. dxc5 hxg5 14. Qd2 g4 15. Rae1 bxc5 {Schmidt,J (2382)-Even,R (2439) ICCF 2018 1/2}) (4. e3 Bg7 5. Bd3 d6 6. Nc3 e5 7. Be2 c5 8. Bb5+ Nc6 9. d4 cxd4 10. exd4 e4 11. d5 a6 12. Nd4 axb5 13. dxc6 bxc6 14. Nxc6 Qc7 15. Nd4 Bd7 {Cardenas,I (1441)-Aragonés Cerezo,G (2028) ICCF 2013 0-1 (27)}) 4... exf6 5. Nc3 (5. c4 d5 6. e3 Be6 (6... c6 7. cxd5 cxd5 8. Nc3 a6 9. a3 Nc6 10. d4 f4 11. exf4 Bd6 12. g3 O-O 13. Nxd5 Qa5+ 14. Nd2 Be6 15. Ne3 Nxd4 16. b4 Qd8 17. Bc4 Bxc4 18. Ndxc4 {Schulz,B (1860) -Dolzhikov,A (1737) ICCF 2019 1/2 (56)}) 7. Qc2 Nc6 8. d4 Qe7 9. Be2 f4 10. Nc3 fxe3 11. fxe3 Nb4 12. Qd2 Bh6 13. Nd1 Nc6 14. O-O O-O-O 15. c5 Rde8 16. Bb5 Bd7 {Cottle,N (1879)-Lombaers,P ICCF 2014 0-1 (31)}) 5... Bc5 6. e3 b6 7. a3 Bb7 8. Be2 Nc6 9. d4 Bd6 10. Qd2 Qe7 11. Nd5 O-O-O 12. Nxe7+ Nxe7 13. c4 g5 14. d5 f4 15. b4 {Ridout,P (1359)-Anderson,L (812) ICCF 2020 1-0 (27)}) (3... c5 4. Bxf6 exf6 5. c4 b6 6. Nc3 Bb7 7. e3 d6 8. h4 h5 9. Be2 g6 10. O-O Bh6 11. Ne1 Nc6 12. Bf3 Qd7 13. Nd3 Kf7 14. Bd5+ Kg7 15. Qf3 {Szymanski,R (2325)-Sikorsky,H (2362) ICCF 2010 1/2 (37)}) (3... d6 4. e3 e5 (4... e6 5. c4 b6 6. d4 Bb7 7. Nc3 Be7 8. Bd3 O-O 9. d5 Na6 10. O-O Nc5 11. Nd4 exd5 12. cxd5 Nfe4 13. b4 Nxd3 14. Qxd3 Nxc3 15. Qxc3 Bxd5 16. Nxf5 {O'Sullivan,R (1628)-Cottarelli,F (1766) ICCF 2014 1-0}) 5. Nc3 (5. c4 Na6 6. Be2 c6 7. O-O Be7 8. d4 e4 9. Ne1 Nc7 10. f4 Be6 11. Nc3 O-O 12. Nc2 d5 13. c5 Kh8 14. b4 Rg8 15. a4 {1/2 (15) Di Marino, M (2227)-Almarza Mato,C (2151) ICCF 2016}) 5... Be7 6. Bc4 c6 7. O-O d5 8. Be2 Bd6 9. d3 O-O 10. e4 d4 11. Nb1 fxe4 12. dxe4 Nxe4 13. c3 c5 14. Bc4+ Kh8 15. Qe2 {Rozumek,K (1764)-Flew,N ICCF 2019 0-1 (30)}) 4. e3 (4. g3 Be7 (4... b6 5. Bg2 Bb7 6. O-O g6 (6... Bd6 7. c4 O-O 8. d4 Nc6 9. Nc3 a6 10. Nh4 Qe7 11. e4 fxe4 12. Nxe4 Ba3 13. Bxa3 Qxa3 14. Re1 Rae8 15. d5 Nd8 16. Re2 e5 17. Qc2 d6 18. Rf1 {Piacun,E-Beyer Lecaros,A (1990) ICCF 2015 1-0 (27)}) 7. d3 Bg7 8. Nbd2 O-O 9. e4 d6 10. Nd4 Re8 11. exf5 Bxg2 12. Kxg2 exf5 13. Qf3 d5 14. Rae1 Qd7 15. Nc4 c6 16. Ne3 {Filipchenko,V (2373)-Pauwels,C (2511) ICCF 2012 1/2 (40)}) (4... d5 5. Bg2 Bd6 6. O-O O-O (6... Nbd7 7. d4 O-O 8. Nbd2 Ne4 9. Ne5 Qe7 10. f4 Ndf6 11. Ndf3 b6 12. Qd3 c5 13. e3 c4 14. bxc4 Ba6 15. c3 Rac8 16. Rfc1 Bxc4 17. Qc2 Rc7 18. Nxc4 {Silfver,T (1880)-Llagaria Vidal,E ICCF 2010 0-1 (52)}) 7. d3 Nc6 8. Nbd2 e5 9. a3 e4 10. dxe4 fxe4 11. Nd4 Ng4 12. e3 Qg5 13. h3 Nxf2 14. Rxf2 Rxf2 15. Kxf2 Qxg3+ 16. Kf1 {Di Stefano,D-Cho,I ICCF 2019 0-1}) 5. Bg2 a5 6. O-O O-O 7. c4 a4 8. bxa4 c6 9. Nc3 d5 10. cxd5 exd5 11. Qc2 Na6 (11... Re8 12. Nd4 Qd7 13. Nd1 Bf8 14. Re1 f4 15. gxf4 Nh5 16. f5 Qf7 17. Ne3 Na6 18. Nf3 Nf4 19. Be5 Nb4 20. Qb1 {1/2 (20) Brunner,R (2145)-Garnica,H (2286) ICCF 2013}) 12. d4 Nb8 13. Qb3 Qa5 14. Bh3 g6 15. Rfb1 Bb4 {Korman,J (1893)-Garnica,H (2286) ICCF 2013 0-1 (39)}) (4. c4 Be7 5. e3 O-O 6. Be2 b6 7. O-O Bb7 8. Na3 c5 9. Nc2 Qc7 10. d4 Ne4 11. Nd2 d5 12. Rc1 Nd7 13. f3 Nxd2 14. Qxd2 Bd6 15. f4 Nf6 {Larsen,S (2208)-Oaker,W (2252) ICCF 2006 0-1 (26)}) (4. d4 d5 5. e3 Bd6 6. Be2 O-O 7. Nbd2 c6 8. Ne5 Ne4 9. O-O Nd7 10. f4 Nxe5 11. Nxe4 fxe4 12. dxe5 Bc5 13. Bd4 Qb6 14. c3 Bd7 15. Qe1 Be8 {Elwood,D (1728)-Woodhouse,S (1644) ICCF 2014 1-0 (37)}) 4... Be7 (4... g6 5. c4 (5. Be2 Bg7 6. O-O O-O 7. d4 d6 8. c4 Nbd7 9. Nc3 e5 10. dxe5 dxe5 11. Ng5 Re8 12. c5 Nxc5 13. Qxd8 Rxd8 14. Bc4+ Kf8 15. Rfd1 Rxd1+ 16. Rxd1 h6 {Korman,J (1809)-Anderson,C ICCF 2020 1-0}) 5... Bg7 6. Be2 O-O 7. O-O b6 8. Nc3 Bb7 9. d4 Qe7 10. a4 a5 11. Ne5 Na6 12. Bf3 Ne4 13. Rc1 d6 14. Nd3 Rae8 15. Nb5 c6 16. Nc3 {Alva Mahe,M-Castillo Dieguez,R ICCF 2020 0-1}) (4... Nc6 5. Bb5 d5 6. Ne5 Bd7 7. Bxc6 Bxc6 8. Nxc6 bxc6 9. O-O Bd6 10. d4 c5 {0-1 (10) López Martín,H (1859)-Malasquez,J ICCF 2012}) 5. d4 (5. Be2 O-O 6. O-O b6 (6... c5 7. c4 b6 8. d4 Bb7 9. Nc3 cxd4 10. exd4 Ne4 11. Ne5 d6 12. Nd3 Bg5 13. f4 Bf6 14. Nxe4 Bxe4 15. Qd2 Nc6 16. Qe3 Rc8 17. Rad1 d5 18. Nf2 {Rozumek,K (1787)-Ooka,K (1510) ICCF 2016 1-0 (37)}) 7. d4 Bb7 8. Nbd2 c5 9. c4 Nc6 10. Rc1 Qc7 (10... Rc8 11. Qc2 Nb4 12. Qb1 cxd4 13. Nxd4 Nc6 14. Rfd1 Nxd4 15. Bxd4 d6 16. Bf3 Qd7 17. Bxb7 Qxb7 18. Nf3 e5 19. Bb2 Ne4 20. Nd2 Nc5 21. Nf3 f4 22. b4 {López Muñoz,J-Hegde,G ICCF 2017 0-1 (40)}) 11. Qc2 cxd4 12. Nxd4 Nb4 13. Qb1 a6 14. Rfd1 Ng4 15. g3 h5 16. a3 Nc6 {López Muñoz,J-Moran,R (1839) ICCF 2017 0-1}) (5. h4 d6 6. d4 Ng4 7. h5 Nd7 8. Be2 Ndf6 9. Nh2 Nxh2 10. Rxh2 Bd7 11. Qd3 c6 12. Nd2 Qc7 13. h6 g6 14. Rh1 a5 15. a3 O-O 16. Rg1 d5 {Bravo González,R (1962)-Martín Lozano,M ICCF 2016 0-1 (45)}) 5... O-O 6. Be2 d5 (6... d6 7. c4 Ne4 8. Nc3 Nxc3 9. Bxc3 Bf6 10. Qc2 Qe8 11. O-O Qg6 12. Rad1 b6 13. d5 e5 14. b4 Qh6 15. c5 bxc5 16. bxc5 Be7 17. cxd6 cxd6 18. Bb4 { Horacek,D-Smail,J ICCF 2007 1-0 (33)}) 7. c4 c6 8. Nc3 Nbd7 9. Ng5 Nb8 10. Nf3 Ne4 11. O-O Nd7 12. Qc2 Ndf6 13. Ne5 Bd6 {Horacek,D-Munoz,L (1785) ICCF 2007 1/ 2 (34)}) (2. b4 Nf6 (2... d6 3. d3 g6 4. Bb2 e5 5. c4 Bg7 6. e3 Nh6 7. Be2 c6 8. Nc3 O-O 9. d4 Nd7 10. O-O Re8 11. dxe5 Nxe5 12. Nd4 Qe7 13. Qb3 Be6 14. Nxe6 {Green,M (2037)-Almarza Mato,C (2089) ICCF 2017 1-0 (35)}) 3. Bb2 e6 4. b5 (4. a3 c5 (4... Be7 5. g3 d6 6. Bg2 O-O 7. c4 e5 8. d3 Qe8 9. Nc3 c6 10. O-O Be6 11. Ng5 Bd7 12. b5 Qh5 13. Bc1 h6 14. Nf3 a6 15. bxc6 Bxc6 16. d4 {Guerrini,D (2131)-Schmidt,T (2176) ICCF 2012 1-0 (63)}) 5. b5 d5 6. c4 a6 7. e3 axb5 8. cxd5 exd5 9. Bxb5+ Nc6 10. O-O Bd6 11. Nc3 O-O 12. Ne2 Bd7 13. a4 Qc7 14. g3 Be8 15. Nf4 Bxf4 {Green,M (2094)-Bolhari,O (2295) ICCF 2018 1/2 (48)}) 4... d6 (4... a6 5. bxa6 Nxa6 6. e3 Nc5 7. Be2 Na4 8. Be5 d6 9. Bb5+ c6 10. Bxa4 dxe5 11. Bb3 Bd6 12. O-O e4 13. Nd4 Bxh2+ 14. Kh1 Ng4 15. g3 e5 16. Ne2 {Foreman, A-Conde Poderoso,A (2333) ICCF 2016 0-1}) 5. a4 (5. e3 Be7 6. c4 e5 7. Nc3 e4 8. Nd4 O-O 9. Be2 c5 10. bxc6 Nxc6 11. O-O Nxd4 12. exd4 d5 13. cxd5 Kh8 14. d3 Nxd5 15. dxe4 Nxc3 16. Bxc3 fxe4 {Whittaker,I (2085)-Nozicka,V (2076) ICCF 2019 1-0 (68)}) 5... e5 6. e3 a6 7. c4 g6 8. c5 axb5 9. cxd6 Bxd6 10. Bxb5+ c6 11. Be2 e4 12. Nd4 h6 13. Na3 O-O {Buss,M (2260)-Moujan,P (2259) ICCF 2020 1-0 (60)}) (2. e3 Nf6 3. Bc4 (3. d3 c5 4. Be2 g6 5. O-O Bg7 6. c4 b6 7. b4 Nc6 8. b5 Na5 9. Bb2 O-O 10. Nbd2 a6 11. a4 Bb7 12. Nb3 Nxb3 13. Qxb3 e6 14. Ne5 Qc7 { Satskov,V-Hernandez Martinez,J ICCF 2018 1/2 (64)}) 3... d5 (3... e6 4. d4 d5 5. Bb3 Bd6 6. O-O O-O 7. Nc3 Ne4 8. Nb5 c6 9. Nxd6 Qxd6 10. Ne5 Nd7 11. f3 Nef6 12. Nxd7 Bxd7 13. Bd2 h5 14. Qe1 Be8 15. Qh4 {Bray,P (1620)-Morgans,J (2027) ICCF 2018 0-1 (79)}) 4. Bb3 e6 5. c4 Bd6 6. O-O O-O 7. Nc3 c6 8. d4 Ne4 9. cxd5 exd5 10. Nd2 Kh8 11. Bc2 Qh4 12. Nf3 Qh6 13. Bd3 Nd7 {McLaughlin,E (1681) -Smail,J ICCF 2013 0-1}) (2. a4 Nf6 3. a5 c5 4. d4 e6 5. e3 Nc6 6. a6 Qc7 7. Nc3 Nb4 8. axb7 Bxb7 9. Nb5 Qb8 10. Be2 Be7 11. dxc5 Bxc5 12. c3 Bxf3 13. gxf3 a6 {Green,M (2115)-Milenkovic,D (2120) ICCF 2019 1/2 (29)}) (2. Nc3 Nf6 3. d3 g6 4. e4 d6 5. e5 dxe5 6. Nxe5 Nbd7 7. Nf3 e5 8. Be2 Bg7 9. O-O c6 10. Re1 O-O 11. d4 e4 12. Bc4+ Kh8 13. Ng5 Qe7 {Marchello,M-Grossi,R ICCF 2013 0-1 (74)}) ( 2. d3 d6 (2... Nc6 3. d4 (3. Bf4 d6 4. d4 e6 5. e3 Nf6 6. Nc3 Be7 7. Bd3 O-O 8. O-O Bd7 9. a3 a6 10. e4 fxe4 11. Nxe4 Nxe4 12. Bxe4 Rxf4 13. Qd3 Rf7 14. Bxh7+ Kh8 {Moujan,P (2064)-Perry,W (2238) ICCF 2018 0-1 (30)}) (3. c4 e6 4. g3 Bb4+ 5. Nc3 b6 6. Bg2 Bb7 7. Qb3 Nf6 8. O-O O-O 9. a3 Be7 10. Qc2 Qe8 11. h3 d6 12. b4 a5 13. b5 Nd8 14. a4 Rc8 {Silin,V (2315)-Lukásová,A (2213) ICCF 2013 1/2 (31)}) (3. g3 e5 4. Bg2 Nf6 5. Bg5 h6 6. Bxf6 Qxf6 7. Nbd2 g5 8. O-O Bc5 9. Nb3 Bb6 10. c3 d6 11. Re1 Bd7 12. e3 h5 13. Nbd2 h4 14. d4 e4 {Vermeulen,E (1667) -Balducci,M ICCF 2007 0-1 (25)}) 3... e6 (3... Nf6 4. d5 Nb4 5. c4 g6 6. Nc3 Bg7 7. g3 O-O 8. Bg2 d6 9. O-O Na6 10. Be3 Nc5 11. Qc2 e6 12. Rad1 Qe7 13. Ng5 Ng4 14. Bc1 a5 15. dxe6 {Cumming,D (2361)-Hughes,G (2208) ICCF 2018 1-0 (52)}) 4. g3 (4. a3 Nf6 5. e3 a6 6. c4 d5 7. b4 Bd6 8. Nbd2 O-O 9. Bb2 Bd7 10. Ne5 Be8 11. Be2 dxc4 12. Nexc4 Ne7 13. O-O Bb5 14. a4 Bxc4 15. Bxc4 Ned5 {Haller,P (2196)-Deneuville,C (2219) ICCF 2015 1/2 (40)}) 4... Nf6 5. Bg2 d5 (5... Be7 6. O-O (6. c4 O-O 7. O-O d5 (7... d6 8. b3 Ne4 9. Bb2 Bf6 10. Nbd2 Nxd2 11. Qxd2 e5 12. dxe5 dxe5 13. Rad1 e4 14. Qxd8 Bxd8 15. Ne1 Be7 16. f3 Re8 17. fxe4 fxe4 18. Rf4 g5 19. Rxe4 {Refalo,J (2351)-Owen,K (2363) ICCF 2012 1/2 (30)}) 8. b3 Ne4 9. Bb2 b6 10. Nc3 Bb7 11. e3 Bf6 12. Rc1 Ne7 13. Qd3 Rc8 14. Rfd1 Qe8 15. cxd5 Nxc3 16. Qxc3 Bxd5 17. Ba3 c5 {Andersen,J (2346)-Lunek,F (2348) ICCF 2018 1/2 (29)}) 6... d5 7. c4 dxc4 8. Qa4 O-O 9. Qxc4 a6 10. a3 Bd6 11. b4 Bd7 12. Nc3 Qe8 13. Re1 Kh8 14. e4 fxe4 15. Nxe4 Nxe4 16. Rxe4 a5 17. b5 {Baumbach,F (2420)-Pegg,R (2440) ICCF 2010 1/2 (116)}) (5... d6 6. c4 d5 {0-1 (6) Owens,J (2263)-Hughes,G (2166) ICCF 2018}) 6. O-O Rb8 7. Nbd2 (7. Bf4 b5 8. Nbd2 Bd6 9. c3 Bxf4 10. gxf4 Ne4 11. Nb3 O-O 12. Ne5 Bd7 13. Qe1 Be8 14. f3 Nd6 15. Nc5 Rf6 16. Qf2 Rh6 17. h3 a5 18. Kh2 Qe7 {Schreurs,B (2286)-Heß,H (2318) ICCF 2019 1/ 2 (40)}) (7. b3 b5 8. Bb2 a5 9. Nbd2 Be7 10. a3 O-O 11. Ne1 Qe8 12. Nd3 Bb7 13. Re1 a4 14. e3 Bd6 15. Nf3 Ne4 16. Nfe5 Be7 17. b4 Rd8 18. Qe2 g5 {Linke,M (2248)-Huber,M (2286) ICCF 2018 1/2 (60)}) 7... Bd6 8. c4 O-O 9. Qc2 b6 10. cxd5 Nb4 11. Qb3 Nbxd5 12. Nc4 h6 13. Nfe5 Bb7 14. Nd3 {Brotherton,T (2211) -Nemec,Z (2190) ICCF 2020 1/2 (29)}) (2... Nf6 3. e4 (3. Nbd2 g6 4. e4 d6 5. c3 fxe4 6. dxe4 e5 7. Bc4 Qe7 8. O-O Nc6 9. Re1 b6 10. Nf1 Bb7 11. Bg5 O-O-O 12. b4 h6 13. Bxf6 Qxf6 14. Ne3 Kb8 {Whittaker,I (2122)-Carey,G (1861) ICCF 2019 1-0 (27)}) 3... fxe4 (3... d6 4. exf5 (4. Nc3 Nc6 5. exf5 Bxf5 6. d4 e6 7. Bd3 Bxd3 8. Qxd3 d5 9. O-O Bb4 10. Bf4 Qd7 11. Rae1 O-O 12. Re2 Rae8 13. Bg3 Bd6 14. Rfe1 h6 15. Nh4 Nb4 {Varkentin,W-Fracassa,M ICCF 2015 1/2 (46)}) 4... Bxf5 5. d4 Nc6 (5... Nbd7 6. Bd3 Bg4 7. h3 Bh5 8. g4 Bf7 9. Nc3 c6 10. Bd2 Qc7 11. Qe2 O-O-O 12. O-O-O h6 13. Rhe1 e6 14. g5 Ne8 15. g6 Bg8 16. Bc4 d5 17. Bd3 { Turner,H (1938)-Shannon,P (1934) ICCF 2016 1-0 (41)}) (5... Qd7 6. Be2 Nc6 7. O-O e5 8. c4 Nxd4 9. Nxd4 exd4 10. Qxd4 Be7 11. Nc3 O-O 12. Bf3 c6 13. Bf4 Rad8 14. h3 h6 15. Rad1 Nh7 16. Rfe1 Ng5 17. Bxg5 {Ronat,O (2375)-Shapiro,V (2358) ICCF 2017 1/2 (40)}) 6. c4 (6. d5 Nb4 7. Nd4 Bd7 8. Bc4 c6 9. dxc6 Nxc6 10. O-O d5 {0-1 (10) Owens,J (2276)-Dreisch,J (2121) ICCF 2017}) 6... e5 7. d5 Ne7 8. Nc3 h6 9. Be2 g5 10. h4 g4 11. Nh2 Qd7 12. Nf1 O-O-O 13. Ng3 Kb8 14. Be3 h5 15. Qd2 {Haller,P (2176)-Snijders,J (2111) ICCF 2018 1-0}) (3... e6 4. e5 Nd5 (4... Ng4 5. d4 Be7 6. h3 Nh6 7. Bxh6 gxh6 8. g4 Rg8 9. gxf5 exf5 10. Bc4 Rg7 11. Nc3 Nc6 12. d5 Na5 13. Bd3 d6 14. e6 c6 15. Bxf5 Nc4 16. Qd4 {Varkentin,W-Ong,A (1679) ICCF 2015 1-0}) 5. c4 Nb6 6. Nc3 Be7 7. d4 O-O 8. c5 Nd5 9. Nxd5 exd5 10. Be2 d6 11. cxd6 cxd6 12. O-O Nc6 13. Qb3 dxe5 14. dxe5 Na5 15. Qa4 { Perini,G (2150)-Krüger,J (2149) ICCF 2011 1/2 (40)}) 4. dxe4 Nxe4 (4... e5 5. Bc4 Bc5 6. O-O d6 7. Nc3 Bg4 8. h3 Bh5 9. a3 Nc6 10. Qd3 Qd7 11. b4 Bb6 12. Nd5 Nxd5 13. exd5 Ne7 14. Bg5 Bg6 15. Qe2 h6 16. Bb5 {Moeykens,C (2099)-Marches Ríos,J ICCF 2007 1-0}) (4... e6 5. e5 Nd5 6. Bd3 d6 7. Ng5 Qe7 8. Qh5+ Kd7 9. O-O g6 10. Bxg6 hxg6 11. Qxh8 Nc6 12. exd6 cxd6 13. c4 Bg7 14. Qh3 Nc7 15. Nc3 b6 16. Rd1 {Alejos,P (2172)-Sánchez Blanque,A ICCF 2016 1-0}) 5. Bd3 Nf6 (5... d5 6. Bxe4 dxe4 7. Qxd8+ Kxd8 8. Ng5 Ke8 9. Nc3 Bf5 10. Be3 Nc6 11. O-O-O e5 12. Ngxe4 Rd8 13. f3 b6 14. h4 h6 15. Rhe1 Rd7 16. Bf2 Kd8 17. Bg3 {Soszynski, M (2266)-Ríos Garcés,J (2028) ICCF 2019 1/2 (38)}) 6. Ng5 c6 (6... g6 7. Nxh7 Rxh7 8. Bxg6+ Rf7 9. g4 d5 10. g5 Bg4 11. Bxf7+ Kxf7 12. Qd3 e6 13. gxf6 Qxf6 14. Rg1 Bf5 15. Qg3 Na6 16. c3 Bd6 17. Bf4 Bh7 18. Qh3 {Kastner,W (2241) -Leitenmüller,M ICCF 2012 1/2}) 7. O-O d6 8. Bxh7 Nxh7 9. Qh5+ Kd7 10. Nf7 Qe8 11. Qg6 Rg8 12. Ne5+ Kd8 13. Qxh7 Be6 14. Nf3 {Gagliardi,V (2169)-Benussi,A (2243) ICCF 2014 1/2 (57)}) (2... c5 3. e4 fxe4 4. dxe4 e6 5. Nc3 d6 6. Bd3 Nf6 7. O-O Be7 8. Qe2 O-O 9. e5 Nd5 10. Ne4 Nc6 11. exd6 Bxd6 12. Nxd6 Qxd6 13. Rd1 Bd7 14. Qe4 {LeSavouroux,H (1824)-Humbert,P ICCF 2010 1-0 (35)}) (2... d5 3. c4 dxc4 4. Qa4+ Qd7 5. Qxc4 Nc6 6. g3 e5 7. Nc3 Nf6 8. Bg2 Qe6 9. Nb5 Bd6 10. O-O Qxc4 11. dxc4 O-O 12. Rd1 e4 13. Nfd4 Nxd4 14. Rxd4 {Borrelli,S-Caponi,S ICCF 2011 1/2}) 3. e4 (3. g3 Nf6 4. Bg2 e6 5. O-O Be7 6. c3 O-O 7. Re1 Nc6 8. e4 fxe4 9. dxe4 e5 10. a4 Qe8 11. Qb3+ Kh8 12. Nbd2 Qh5 13. Nf1 Rb8 14. h4 Bg4 { Clews,W (1881)-Lythgoe,M (1950) ICCF 2012 1/2 (27)}) 3... e5 4. Nc3 (4. g3 Nf6 5. Nbd2 c5 (5... Nc6 6. Bg2 Be7 7. O-O fxe4 8. dxe4 O-O 9. Nc4 Be6 10. Ne3 Nxe4 11. Nxe5 Nxe5 12. Bxe4 c6 13. c4 Bf6 14. Qc2 Kh8 15. Rd1 Bf7 16. f4 Nxc4 17. Nxc4 {Ipinza Carmona,M (2059)-Corbat,P ICCF 2005 1/2 (28)}) 6. Bg2 Be7 7. O-O Nc6 8. c3 O-O 9. b4 fxe4 10. dxe4 cxb4 11. cxb4 Kh8 12. b5 Na5 13. a4 Be6 14. Ba3 Nd7 15. Bb4 Nc5 {Matic,Z-Milenkovic,D (2158) ICCF 2015 0-1 (28)}) 4... c5 ( 4... Nf6 5. exf5 Bxf5 6. d4 (6. Be2 Be7 7. O-O O-O 8. d4 e4 9. Ne1 d5 10. f4 c5 11. Be3 Nc6 12. Bb5 Ng4 13. Bc1 Bf6 14. Ne2 Nxd4 15. c4 Nxe2+ 16. Qxe2 Bd4+ 17. Kh1 Nxh2 {Elwood,D (1705)-Moran,R (1829) ICCF 2017 0-1}) 6... e4 (6... Nbd7 7. Bc4 (7. Bg5 c6 8. dxe5 Nxe5 9. Qe2 Bg4 10. h3 Qb6 11. O-O-O Bxf3 12. gxf3 O-O-O 13. Kb1 Ned7 14. h4 d5 15. Bh3 Kb8 16. Be3 Qc7 17. Qd2 Ne5 18. Qd4 b6 {Cvetnic, V (2428)-Peschardt,S (2438) ICCF 2005 1/2 (50)}) (7. dxe5 dxe5 8. Bc4 Bc5 9. Bg5 c6 10. Qe2 Qe7 11. O-O O-O-O 12. Na4 Bd6 13. Be3 Kb8 14. Bd3 e4 {0-1 (14) Davis,J (1384)-Ainsborough,G (1580) ICCF 2018}) 7... Nb6 (7... Qe7 8. O-O O-O-O 9. a4 c6 10. Re1 d5 11. Nxe5 Nxe5 12. Rxe5 Qd7 13. Bd3 Bg6 14. a5 Bd6 15. Re2 Qf7 16. Bg5 Rde8 17. Rxe8+ Rxe8 18. a6 b6 19. h3 {Orlando,E-Llorente Alvarez,J (2198) ICCF 2017 1/2 (58)}) 8. dxe5 dxe5 9. Qxd8+ Rxd8 10. Bb3 Bd6 11. Be3 (11. O-O c5 12. a4 c4 13. Ba2 Bxc2 14. a5 Na4 15. Nxa4 Bxa4 16. Bxc4 Bc6 17. Ng5 Bb8 18. b3 Bd5 19. Ba3 Bxc4 20. bxc4 Rd7 21. Rfc1 h6 22. Ne6 Ne4 {Percze,J (2542) -Manduch,M (2459) ICCF 2008 1-0 (86)}) 11... Rf8 12. O-O Bg4 13. Ng5 h6 14. Nge4 Nxe4 15. Nxe4 Nd7 16. h3 Bh5 17. Rfe1 Bb4 18. c3 {Dailido,S (2330) -Manduch,M (2335) ICCF 2017 1-0 (58)}) (6... Qe7 7. dxe5 dxe5 8. Bc4 Nbd7 9. Qe2 O-O-O 10. Ng5 Re8 11. Nge4 Nxe4 12. Nxe4 Kb8 13. Bg5 Nf6 14. Ng3 {1/2 (14) Pohjosmäki,R (2247)-Slivko,V (2246) ICCF 2012}) 7. Nh4 Bg4 (7... Be6 8. d5 Bd7 9. g3 (9. h3 Be7 10. g4 Nxd5 11. Qxd5 Bxh4 12. Qxe4+ Qe7 13. Qxe7+ Bxe7 14. Nd5 Bc6 15. c4 Na6 16. Bd2 Bh4 17. Bg2 Bd7 18. O-O O-O-O 19. Be3 c6 20. Nc3 Be6 { Montgomery,R (2244)-Fister,B (2235) ICCF 2008 1/2 (26)}) 9... Be7 10. Ng2 O-O 11. Nf4 Qe8 12. Bg2 Bg4 13. Qd4 c5 14. Qe3 Na6 15. O-O Nc7 16. Nxe4 Nxe4 17. Bxe4 Qf7 18. f3 Bd7 19. Qd3 {Arcenegui Rodrigo,J (2310)-Schakel,C (2315) ICCF 2010 1-0 (33)}) (7... Bc8 8. f3 Ng4 9. fxg4 Qxh4+ 10. g3 Qxg4 11. Be2 Qe6 12. d5 Qe7 13. O-O Kd8 14. Qd4 h6 15. Nxe4 Nd7 16. Bf4 Rg8 17. Rae1 g5 18. Be3 Bg7 19. Qd3 {Andersen,J (2311)-Troia,E (2213) ICCF 2010 1-0 (39)}) 8. Be2 Bxe2 9. Qxe2 d5 10. Bg5 Bb4 11. Qb5+ Nc6 12. Qxb7 Nxd4 (12... Kd7 13. Qa6 Rb8 14. Nf5 h6 15. Bh4 Rb6 16. Qa4 g5 17. Bg3 Ke6 18. Ne3 Nxd4 19. Rd1 c5 20. a3 Qc8 21. Qxa7 Ra6 22. Qg7 Bxc3+ 23. bxc3 Nf5 24. Nxf5 {Grabner,H (2298)-Polatel,A (2111) ICCF 2016 1-0 (53)}) 13. Bxf6 gxf6 14. O-O-O (14. O-O Bxc3 15. bxc3 Ne2+ 16. Kh1 O-O 17. Rae1 Nf4 18. c4 Rb8 19. Qxa7 f5 20. f3 Rb6 21. cxd5 Qxh4 22. g3 Qd8 23. gxf4 Qxd5 24. Rg1+ Rg6 25. fxe4 fxe4 {Kastner,W (2271)-Rogetzer,K (2391) ICCF 2005 1/2 (38)}) 14... Bxc3 15. bxc3 Rb8 16. Qa6 {Neelmeier,W (1943) -Daatselaar,J (2264) ICCF 2012 0-1}) (4... Nc6 5. exf5 Bxf5 (5... Nge7 6. Nh4 Nxf5 7. Qh5+ g6 8. Nxg6 Ng7 9. Qh4 Qxh4 10. Nxh4 Nd4 11. Kd1 Be7 12. Nd5 Bd8 13. c3 Nde6 14. Nf3 b6 15. d4 Bb7 16. Bc4 c6 17. Ne3 {Schreurs,B (2232)-Fuchs, J (2217) ICCF 2017 1/2 (40)} d5 18. Be2 e4 19. Nd2 Bg5 20. g3 Bxe3 21. fxe3 Nf5 22. Nb1 O-O 23. a4 Ng5 24. b3 Nh6 25. a5 b5 26. c4 Nf3 27. a6 Bc8 28. cxd5 Ng4 29. Kc2 {Stein,K (2407)-Fuchs,J (2217) ICCF 2017 1-0 (52)}) 6. d4 Nxd4 7. Nxd4 exd4 8. Qxd4 c6 (8... Nf6 9. Bg5 Be7 10. Bc4 c6 11. O-O-O d5 12. Rhe1 Kf7 13. Qf4 Qd7 14. Nxd5 {1-0 (14) Walton,J-Smail,J ICCF 2018}) 9. Bd3 (9. g4 Bxc2 10. Bg2 Qf6 11. Qc4 d5 12. Nxd5 cxd5 13. Qxc2 Bb4+ 14. Kf1 Ne7 15. Qa4+ Nc6 16. Bxd5 Qd6 17. Bxc6+ bxc6 18. Qb3 O-O-O 19. Be3 Bc5 20. Re1 h5 {Sudnitsyn,A (2399)-Kostanjsek,Z (2375) ICCF 2019 1/2 (40)}) (9. Bf4 Nf6 10. Qd2 Be7 11. O-O-O d5 12. f3 O-O 13. Be2 Re8 14. g4 Bg6 15. h4 Qa5 16. Kb1 Rad8 17. Bd3 d4 18. Ne4 Qxd2 19. Nxf6+ Bxf6 20. Bxd2 Bxd3 {Disque,P-Siegfried,W ICCF 2019 1/2 (37)}) 9... Bxd3 10. Qxd3 Nf6 11. Bg5 Be7 12. O-O-O O-O 13. Rhe1 d5 14. Re6 Qc7 15. g3 Rae8 16. Rde1 {Cabrera Trujillo,C (1563)-Stack,J ICCF 2018 0-1 (55)}) ( 4... c6 5. d4 fxe4 6. Nxe4 exd4 7. Qxd4 d5 8. Qe5+ Qe7 9. Nd6+ Kd8 10. Qxe7+ { 1-0 (10) Boles,R (1966)-Smail,J ICCF 2010}) 5. g3 (5. exf5 Nf6 6. Be3 Be7 7. Nh4 Nbd7 8. Ne4 h5 9. Be2 Qa5+ 10. c3 Kd8 11. Ng6 Qb6 12. Nxh8 {1-0 (12) Toye, D (1711)-Smith,A (1669) ICCF 2015}) 5... Nc6 (5... Be7 6. Bh3 fxe4 7. Bxc8 Qxc8 8. dxe4 Nc6 9. Nd5 Qd7 10. Ng5 Nf6 11. c3 Nxd5 12. Qxd5 Nd8 13. Be3 h6 14. Nf3 Ne6 15. Rd1 O-O-O 16. Qc4 Bf6 17. b4 {Refalo,J (2359)-Krzyzanowski,A (2359) ICCF 2014 1/2 (60)}) 6. Bh3 (6. Nh4 f4 (6... fxe4 7. dxe4 Be6 8. Nd5 Qd7 9. c3 O-O-O 10. Bg2 Nge7 11. O-O h6 12. a4 g5 13. Nf3 Bg7 14. Nd2 Kb8 15. Qe2 Bg4 16. Qc4 Rhf8 17. Ne3 Be6 18. Qd3 {Kuitert,C (2102)-Cuccumini,V (2221) ICCF 2017 1-0 (41)}) 7. Ng2 Nf6 8. gxf4 Be7 (8... g6 9. h4 Nd4 10. Be2 h5 11. fxe5 dxe5 12. Bg5 Be7 13. Qd2 b5 14. Ne3 b4 15. Ncd5 Nxd5 16. Nxd5 Bxg5 17. hxg5 Kf7 18. f4 Be6 19. Nf6 exf4 20. c3 {Kuster,Z-Milenkovic,D (2158) ICCF 2015 1-0 (34)}) 9. f5 g6 10. Ne3 gxf5 11. exf5 Kd7 12. Ne4 Kc7 13. Bg2 Nd4 14. Bd2 Kb8 15. c3 Nxf5 16. Nxf5 Bxf5 17. Nxf6 Bxf6 {Gagliardi,V (2148)-Vodicka,M (2223) ICCF 2014 1-0 (35)}) 6... fxe4 7. Bxc8 Qxc8 8. dxe4 Qh3 9. Nd5 O-O-O 10. Be3 (10. Bg5 Rd7 11. Qe2 h6 12. Be3 Be7 13. O-O-O Nf6 14. Nxf6 Bxf6 15. Nd2 Rhd8 16. c3 Qe6 17. Nb3 Qf7 18. h4 b6 19. f3 Kc7 20. Kb1 d5 21. exd5 Rxd5 {Sabaev,S (2409) -Polsterer,H (2449) ICCF 2016 1/2 (28)}) 10... Nf6 11. Bg5 Be7 12. Bxf6 Bxf6 13. Qe2 Rhf8 14. O-O-O Rd7 15. Kb1 (15. c3 Rdf7 16. Rhf1 Qg4 17. Rd2 Bd8 18. Ng1 Qxe2 19. Rxe2 Bg5+ 20. Kc2 {1/2 (20) Andersen,J (2284)-Fritsche,F (2377) ICCF 2010}) 15... Bd8 16. Nd2 {1/2 (16) Novak,D-Fritsche,F (2377) ICCF 2010 Unusual lines after 1 Nf3 and-King's Indian Attack}) (2. g3 Nc6 (2... Nf6 3. Bg2 (3. d3 d6 4. Bg2 e5 5. O-O (5. Nc3 Be7 6. e4 c6 7. O-O O-O 8. Re1 fxe4 9. dxe4 Bg4 10. h3 Bd7 11. Bg5 Qc8 12. Bxf6 Rxf6 13. h4 Bg4 14. Qd2 Bxf3 {0-1 (14) Mayes,F (1335)-Ríos Garcés,J ICCF 2018}) 5... Be7 6. Nbd2 O-O 7. Re1 b6 8. e4 fxe4 9. dxe4 Bb7 10. Ng5 Qd7 11. h3 h6 12. Ngf3 Na6 13. Nh2 Nc5 14. Qe2 Rae8 { Klimushyn,C-Berger,B ICCF 2014 0-1 (25)}) 3... g6 (3... Nc6 4. d4 d5 5. O-O e6 6. c4 dxc4 (6... Bd6 7. Nc3 Ne4 8. cxd5 Nxc3 9. bxc3 exd5 10. Bg5 Ne7 11. c4 O-O 12. c5 Bxg3 13. hxg3 Qe8 14. Ne5 Be6 15. Qb3 Nc6 16. Rfd1 Nxe5 17. dxe5 c6 18. Qxb7 {Crowe,J-De La Forét,F (1624) ICCF 2015 1-0 (32)}) 7. Nc3 (7. Qa4 Bd7 8. Qxc4 Bd6 9. Nc3 Rb8 10. Bg5 O-O 11. e4 b5 12. Qd3 b4 13. e5 bxc3 14. bxc3 Be7 15. exf6 Bxf6 16. Bxf6 Qxf6 17. Rab1 Rb6 18. Rfe1 f4 {De Blois Figueredo,A (2341)-Straka,J (2181) ICCF 2013 1-0 (27)}) 7... Bd6 8. Nd2 Na5 (8... Nxd4 9. Nxc4 Be7 10. Be3 c5 11. Bf4 O-O 12. e3 Nc6 13. Qa4 Nb4 14. Rad1 Nbd5 15. Qc2 Qe8 16. Be5 Bd7 17. Bxf6 Nxf6 18. Bxb7 Rd8 19. Ne5 Ng4 20. Nxg4 {Jefferson,N (2216)-Bruce,R (1991) ICCF 2018 1-0 (44)}) 9. e4 fxe4 10. Ndxe4 O-O 11. Bg5 Be7 12. Nxf6+ Bxf6 13. Bxf6 Rxf6 14. Qa4 c6 15. b4 {Kaufmann,M (1965)-Moot,H (1830) ICCF 2008 1-0}) (3... e6 4. d3 (4. O-O d5 (4... Be7 5. c3 d6 6. Qb3 a5 7. a4 Nd5 8. Nd4 c6 9. Bxd5 exd5 10. d3 Na6 11. Qd1 O-O 12. h4 Qb6 13. f4 Bf6 14. Qb3 Bxd4+ 15. cxd4 Qxb3 16. Ra3 {Vaessen,J (1815)-Lonnee,G (1830) ICCF 2016 0-1 (26)}) 5. d3 Nc6 (5... Bc5 6. c4 O-O 7. Qc2 d4 8. Nbd2 Nc6 9. a3 a5 10. Nb3 Be7 11. e3 dxe3 12. Bxe3 e5 13. Bg5 a4 14. Nbd2 h6 15. Bxf6 Bxf6 16. Nb1 g5 17. Nc3 {Fortin,M (1815)-Osthus,R ICCF 2006 0-1 (33)}) 6. Nbd2 (6. Nc3 e5 7. Bg5 Be7 8. e4 fxe4 9. Bxf6 Bxf6 10. dxe4 d4 11. Nd5 Be6 12. c4 Qd7 13. Ne1 O-O 14. Nd3 b6 15. Qa4 Kh8 16. Rac1 Rac8 17. c5 Qe8 {Bjazevic,P-Kerr,S (2609) ICCF 2006 1/2 (45)}) 6... Bd6 7. e4 fxe4 8. dxe4 O-O 9. Qe2 Be7 10. b3 a5 11. Bb2 Bc5 12. Rad1 a4 13. c4 Qe8 14. e5 Ng4 15. a3 axb3 {Owens,J (2173)-Mironchik,A (1870) ICCF 2017 1/2 (47)}) (4. b3 Be7 5. Bb2 O-O 6. O-O d6 7. d3 e5 8. Nbd2 Nc6 9. c4 Qe8 10. a3 Qh5 11. e3 g5 12. Ne1 Qg6 13. Rc1 Bd7 14. b4 f4 15. b5 Nd8 {Carter, M (1604)-Civan,E (2104) ICCF 2010 1-0 (32)}) 4... Be7 5. O-O (5. Nbd2 d6 6. O-O O-O 7. e4 e5 8. Re1 c6 9. exf5 Bxf5 10. Nc4 Na6 11. Bd2 Qd7 12. Qe2 Rae8 13. Ng5 h6 14. Nf3 Bd8 15. b3 e4 16. Nh4 exd3 {Stevenson,W (1820)-Shannon,P (1934) ICCF 2019 0-1 (27)}) 5... O-O 6. Nbd2 (6. a3 d6 7. Bd2 e5 8. e3 Qe8 9. h3 Qh5 10. Nc3 f4 11. Nh2 Qxd1 12. Nxd1 fxg3 13. fxg3 d5 14. Nf2 Nc6 15. Rab1 Be6 16. c3 Rad8 17. b4 e4 {Thistlewood,M-Ward,B (1646) ICCF 2013 0-1 (32)}) (6. c3 d6 7. Qb3 c6 8. Nd4 d5 9. Bf4 a5 10. Bxb8 a4 11. Qc2 Rxb8 12. Qxa4 e5 13. Nf3 e4 14. Nfd2 Bd6 15. Na3 b5 16. Qb3 Qe8 17. Nc2 Be6 {Grech,G-Perini,G (1723) ICCF 2006 0-1 (33)}) (6. Bg5 d6 7. c4 h6 8. Bc1 e5 9. Nc3 Qe8 10. b3 {Gallimore,C (2187)-Shaw,D ICCF 2020}) 6... Qe8 (6... d5 7. c3 h6 8. Ne5 Qe8 9. Ndf3 g5 10. h4 Qh5 11. hxg5 {1-0 (11) Larsen,N (1986)-Eckert,P (2189) ICCF 2016}) 7. h3 d6 8. Re1 e5 9. e4 h6 10. exf5 Bxf5 11. g4 Bh7 12. b3 Nd5 13. Bb2 Qf7 14. Bxe5 dxe5 15. Nxe5 {Carrington,A (1527)-Ford,S ICCF 2016 0-1 (28)}) 4. O-O (4. b3 Nc6 (4... Bg7 5. Bb2 e6 6. O-O O-O 7. c4 b6 8. Ne5 d5 9. cxd5 exd5 10. b4 Re8 11. a4 Qd6 12. Nd3 Bb7 13. Nc3 Ne4 14. Qc2 c6 15. a5 Nd7 16. Nf4 {Goins,D (2238)-Blittkowsky,R (1869) ICCF 2019 1-0 (33)}) 5. Bb2 Bg7 6. c4 O-O 7. O-O e6 8. d4 Ne4 9. Nc3 b6 10. h4 Ne7 11. Ng5 d5 12. e3 Nxc3 13. Bxc3 a5 14. a4 Qd7 15. Rc1 Ba6 {Smith,S (2162)-Cuccumini,V (2158) ICCF 2019 1/2 (42)}) (4. b4 Bg7 5. Bb2 d6 6. d4 O-O 7. Nbd2 Nc6 8. b5 Na5 9. c4 c6 10. bxc6 Ne4 11. O-O bxc6 12. Nxe4 fxe4 13. Nd2 Qb6 14. Bc3 d5 15. e3 Qa6 {Bibens,J (2133)-Fister,B (2212) ICCF 2006 1/2 (62)}) 4... Bg7 5. d3 (5. d4 c6 (5... d5 6. e3 e6 7. c4 O-O 8. cxd5 Nxd5 9. Nc3 c6 10. Nxd5 cxd5 11. Qb3 Nc6 12. Bd2 b6 13. Rac1 Na5 14. Bxa5 bxa5 15. Nd2 Bd7 16. Rc2 Rb8 17. Qa3 {Stone,D (1699)-Jones,C (1590) ICCF 2016 1-0 (45)}) 6. c4 d6 7. Bf4 O-O 8. Qc1 Nbd7 9. Bh6 e5 10. Bxg7 Kxg7 11. c5 e4 12. Ng5 Qe7 13. cxd6 Qxd6 14. e3 h6 15. Nh3 g5 16. Kh1 Nb6 {Carrión Lava,J (2185)-Schmidt,T (2203) ICCF 2011 0-1 (69)}) 5... O-O (5... d6 6. Nc3 e5 (6... O-O 7. e4 (7. Re1 e5 8. e3 Nc6 9. a3 d5 10. d4 e4 11. Nd2 g5 12. f3 Ne7 13. h3 exf3 14. Bxf3 Ne4 15. Ndxe4 fxe4 16. Bg2 Qd6 17. g4 h5 18. Ne2 hxg4 { Bernardara,E (1290)-Rensen,M ICCF 2020 0-1 (25)}) (7. d4 Nc6 8. Qd3 Kh8 9. d5 Nb4 10. Qc4 c5 11. dxc6 Nxc6 12. Ng5 Qe8 13. Nb5 Ne5 14. Qb3 Qd8 15. Nd4 Nfd7 16. Nde6 Nc5 17. Nxc5 dxc5 18. Bf4 c4 {Clark,S (1968)-Hughes,G (1819) ICCF 2012 1-0 (27)}) 7... Nc6 8. Nh4 fxe4 9. dxe4 e5 10. Bg5 Be6 11. Nd5 Qd7 12. Qd3 Rae8 13. Rae1 Nd8 14. Bxf6 Bxf6 15. Nxf6+ Rxf6 16. f4 exf4 17. gxf4 Nc6 18. f5 {Krzyzanowski,A (2372)-Heß,H (2317) ICCF 2018 1/2 (26)}) 7. e4 O-O 8. exf5 gxf5 9. Bg5 Be6 10. d4 e4 11. Nh4 Qe8 12. d5 Bd7 13. Qd2 Na6 14. Rae1 Qh5 15. f3 h6 16. Be3 Rae8 17. Ne2 {Wagner,A-Anderson,J (1752) ICCF 2010 1-0 (33)}) 6. Nbd2 ( 6. e4 d6 7. exf5 Bxf5 8. c3 e5 9. Qb3+ Kh8 10. d4 Nbd7 11. dxe5 dxe5 12. Qxb7 Nc5 13. Qc6 Nd3 14. Nh4 e4 15. Nxf5 gxf5 16. Na3 Ng4 17. Nc4 Rb8 {Kolojeski,P (2162)-Just,J (2234) ICCF 2017 1/2 (26)}) 6... d6 (6... d5 7. Re1 c5 8. c4 d4 9. e3 Nc6 10. b3 e5 11. e4 f4 12. Nf1 h6 13. gxf4 Nh5 14. f5 gxf5 15. exf5 Bxf5 16. Ng3 Bg4 17. Nxh5 Bxh5 18. Rb1 {Svenonius,G (1816)-McPherren,R ICCF 2007 0-1 }) 7. c3 (7. e4 e5 8. c3 fxe4 9. Nxe4 Nxe4 10. dxe4 Kh8 11. Re1 Nd7 12. Be3 Nf6 13. Qc2 Qe8 14. b3 Qc6 15. Bd2 a5 16. Rac1 b6 17. a4 Nd7 18. Be3 Rb8 {Johansen, A (1687)-Klug,C ICCF 2010 1/2 (30)}) 7... a5 (7... h6 8. Nh4 Kh7 9. e4 e6 10. f4 Nc6 11. Nc4 Qd7 12. Re1 b6 13. a4 Ba6 14. Ne3 Rab8 15. b4 Bb7 16. Nc4 a6 17. b5 Ne7 18. Qb3 Ra8 19. exf5 {Owens,J (2092)-Dugushov,S (1958) ICCF 2015 1/2 (36)}) 8. a4 e5 9. Qb3+ Kh8 10. Ng5 d5 11. e4 Ne8 12. f4 exf4 13. gxf4 h6 14. Ngf3 {Sparnacini,S (2169)-Deneuville,C (2239) ICCF 2013 1/2 (46)}) (2... b6 3. Bg2 Bb7 4. d3 (4. O-O Nf6 5. d4 g6 6. c4 Bg7 7. Nc3 O-O 8. Qc2 Na6 9. Bg5 c5 10. d5 d6 11. Rad1 Nc7 12. b3 Qd7 13. Qd3 b5 14. Bxf6 bxc4 15. bxc4 Bxf6 { Vermeulen,E (1900)-Jenkinson,S (2216) ICCF 2012 1/2 (26)}) 4... Nf6 5. Nc3 (5. O-O e6 6. Nbd2 Be7 7. Re1 O-O 8. e4 Na6 9. e5 Ng4 10. Nc4 g5 11. a3 Kh8 12. Bd2 Rg8 13. h3 Nh6 14. Qe2 Nf7 15. Nxg5 Nxg5 16. Bxb7 Nc5 {Stevenson,W-Shannon,P (1934) ICCF 2018 0-1 (31)}) 5... e6 6. Bf4 Be7 7. O-O O-O 8. e4 fxe4 9. dxe4 Nxe4 10. Nb5 Rxf4 11. gxf4 a6 12. Nbd4 c5 13. Nb3 Qf8 14. Ne5 {Mokosak,D (1844) -Nicholson,M ICCF 2008 1-0 (40)}) (2... c5 3. Bg2 g6 4. c3 Bg7 5. d4 cxd4 6. cxd4 Nf6 7. O-O O-O 8. Nc3 d5 9. Ne5 e6 10. Bf4 Ne4 11. Nxe4 dxe4 12. Rc1 Nd7 13. Qb3 Nxe5 14. Bxe5 {Emrich,E (2339)-Löffler,W (2394) ICCF 2017 1/2 (29)}) ( 2... e5 3. Bg2 e4 4. Ng1 e3 5. Kf1 exf2 6. Kxf2 Bd6 7. Nf3 Nf6 8. Nd4 Ng4+ 9. Kf1 O-O 10. Bd5+ Kh8 {0-1 (10) Baydashkin,A (2309)-Rychkov,A ICCF 2018}) 3. d4 (3. Bg2 e5 4. d3 d5 5. c3 Nf6 6. Nbd2 Rg8 7. e4 dxe4 8. dxe4 fxe4 9. Ng1 Bc5 10. h3 e3 11. fxe3 Be6 12. Bxc6+ bxc6 13. Qe2 Qd6 14. e4 g5 {Conway,J-Bruce,R (1941) ICCF 2019 0-1}) 3... e5 4. Nxe5 Nxe5 5. dxe5 d6 6. Bf4 Be6 7. exd6 Bxd6 8. Bxd6 cxd6 9. Nc3 (9. Bg2 Qb6 10. O-O Qxb2 11. Nd2 Nf6 12. Rb1 Qxa2 13. Bxb7 Rd8 14. Ra1 Qb2 15. Bc6+ Bd7 16. Nc4 Qb4 17. Nxd6+ Ke7 18. Bxd7 Rxd7 19. Nxf5+ Kf7 20. Qb1 Qc5 {Müßig,F (2046)-Sartori,D (1982) ICCF 2011 1-0 (49)}) 9... Qb6 10. Qd3 Qxb2 11. Rb1 Qa3 12. Rxb7 Rc8 13. Nb5 Qc1+ 14. Qd1 Rxc2 15. Qxc1 Rxc1+ 16. Kd2 Ra1 17. Bg2 Rxa2+ 18. Kd3 Kd8 19. Rd1 Bc8 20. Rxg7 Ba6 21. Bc6 Ne7 22. Kc3 Bxb5 23. Bxb5 d5 24. Rb1 Ra3+ 25. Kd4 Ra5 26. Ke5 h5 27. Bd3 Nc6+ 28. Kf6 Rf8+ 29. Kg5 d4 30. Rbb7 f4+ 31. Kh4 fxg3 32. fxg3 Rd5 33. Be4 Rd6 34. Kxh5 Re8 35. Bxc6 Rxc6 36. Rxa7 Re5+ 37. Kg4 Re4+ 38. Kf5 Re8 39. h4 Rc4 40. h5 Rc5+ 41. Kg6 Rc6+ 42. Kh7 Rxe2 43. Rg8+ Re8 44. Ra8+ {1-0 (44) Rouse Pasara,C (2029) -Sartori,D (1982) ICCF 2011 Unusual lines after 1 Nf3 and-King's Indian Attack} ) 2... fxe4 (2... f4 3. d4 Nf6 4. e5 Nd5 5. c4 Nb6 6. Nc3 e6 7. c5 Nd5 8. Nxd5 exd5 9. Bd3 Be7 10. Qb3 c6 11. Qc2 d6 12. cxd6 Bg5 13. Bxh7 Bh6 14. g4 { Lemberger,W (2114)-Wetzenkircher,M ICCF 2008 1-0}) 3. Ng5 d5 (3... Nc6 4. d3 ( 4. Nxe4 d5 5. Ng3 e5 6. Bb5 Nf6 7. O-O (7. d3 Bg4 8. Bxc6+ bxc6 9. f3 Bd7 10. Qe2 Bd6 11. O-O O-O 12. Be3 Qe8 13. Nd2 Nh5 14. Nxh5 Qxh5 15. Rae1 Rf6 16. Nb3 e4 17. f4 Bg4 18. Qd2 Rh6 {Avery,B (1854)-Civan,E (1705) ICCF 2008 0-1}) 7... Bc5 8. Re1 O-O 9. Bxc6 bxc6 10. Rf1 Ng4 11. Nh1 Qh4 12. h3 Nxf2 13. Nxf2 Bxf2+ 14. Kh1 Bxh3 15. Rxf2 Bxg2+ {Smith,J-Hey,B ICCF 2020 0-1}) (4. Nc3 d5 5. d3 e3 6. fxe3 e6 7. Nf3 Nf6 8. Be2 a6 9. O-O Bd6 10. Bd2 O-O 11. a3 Bd7 12. b4 Qe7 13. Qe1 e5 14. Rd1 e4 15. dxe4 dxe4 {Blondel,F (1940)-Charpentier,D (2153) ICCF 2016 0-1 (27)}) 4... e3 (4... e6 5. dxe4 Nf6 6. Bd3 Bc5 7. Nc3 O-O 8. O-O Ne5 9. Kh1 Nfg4 10. f4 Qxg5 11. fxg5 Rxf1+ 12. Qxf1 Nf2+ 13. Qxf2 Bxf2 14. g3 Nxd3 15. cxd3 b6 16. Bf4 {Gasanov,E-Jurgens,J ICCF 2009 0-1 (51)}) 5. Bxe3 e5 6. Nc3 (6. c4 Bb4+ 7. Nc3 Nf6 8. a3 (8. Be2 O-O 9. O-O Bxc3 10. bxc3 h6 11. Ne4 d6 12. Ng3 Be6 13. Rb1 Qc8 14. d4 exd4 15. cxd4 Na5 16. d5 Bd7 17. Bd2 b6 18. Qc2 Nb7 19. Rfe1 Nc5 {Lewyk,I (1936)-Ash,G (1617) ICCF 2019 1-0 (32)}) 8... Bxc3+ 9. bxc3 O-O 10. Be2 d6 11. O-O h6 12. Nf3 Bf5 13. d4 Kh8 14. h3 {Taylor, B (2124)-Rensen,M ICCF 2020}) (6. d4 exd4 7. Bd3 Nf6 8. Bf4 Bb4+ 9. c3 Qe7+ 10. Kd2 dxc3+ 11. bxc3 Bd6 12. Bg3 Nd8 13. Re1 Ne6 14. Bh4 Bf4+ 15. Kc2 Bxg5 16. Bxg5 O-O 17. Nd2 h6 {Lewyk,I (2135)-Cook,D (2260) ICCF 2015 0-1 (43)}) (6. Be2 Be7 7. Qd2 d5 8. Nf3 Nf6 9. O-O O-O 10. Bg5 e4 11. dxe4 Nxe4 12. Bxe7 Nxe7 13. Qc1 Bg4 14. Nbd2 Ng6 15. Nd4 Bxe2 16. Nxe2 Ng5 17. Nd4 c5 {Shannon,P (1934) -Smail,J ICCF 2018 1-0 (33)}) 6... Be7 (6... Bb4 7. a3 Ba5 (7... Bxc3+ 8. bxc3 d5 9. g3 Nf6 10. Bg2 O-O 11. O-O h6 12. Nf3 Re8 13. Re1 Rb8 14. a4 Bf5 15. h3 Qd6 16. a5 Rbd8 17. Qb1 e4 18. Nd4 Nxd4 19. cxd4 {Bush,F (2339)-Williamson,H ICCF 2007 1/2 (42)}) 8. Qh5+ g6 9. Qf3 Nf6 10. Nge4 O-O 11. Nxf6+ Qxf6 12. Qxf6 Rxf6 13. b4 Bb6 14. Bxb6 cxb6 15. Rc1 {1/2 (15) Sánchez de Ybargüen Gutiérrez, L (2220)-Lüddeckens,H (2294) ICCF 2012}) 7. Nd5 Nf6 8. Qf3 O-O 9. c3 (9. O-O-O Kh8 10. Nxf6 gxf6 11. Nxh7 Kxh7 12. d4 d5 13. Bd3+ f5 14. Qh5+ Kg8 {1/2 (14) Lemberger,W (2087)-Binder,E (2122) ICCF 2014}) 9... Kh8 10. Nxf6 gxf6 11. Nxh7 Kxh7 12. Qh5+ Kg8 13. Qg6+ {1/2 (13) Troia,M (1800)-Dugushov,S (1958) ICCF 2015 }) (3... Nf6 4. d3 e5 (4... e6 5. Nc3 Nc6 6. dxe4 Bc5 7. Bb5 O-O 8. O-O h6 9. Nf3 d6 10. Bxc6 bxc6 11. Qd3 a5 12. e5 Ba6 13. Qg6 Bxf1 14. Bxh6 Qd7 15. Ng5 Bxf2+ 16. Kh1 {Del Vivo,M-Larsen,A (1990) ICCF 2012 1-0 (32)}) 5. dxe4 c6 6. Nc3 (6. Bd3 Bc5 7. f4 d6 8. fxe5 dxe5 9. Nc3 Qe7 10. Rf1 Nbd7 11. Qe2 Bd4 12. Bd2 O-O 13. O-O-O b5 14. Qe1 Bb6 15. Kb1 Nc5 16. Be2 h6 17. Nf3 b4 {Lewyk,I (1977)-Roynet,S (2158) ICCF 2018 0-1 (31)}) 6... Bb4 7. Qd3 d5 8. Bd2 O-O 9. Be2 h6 10. Nf3 Bxc3 11. Bxc3 Nxe4 12. Bxe5 Bf5 13. Qb3 Nd7 14. Bg3 Qa5+ 15. c3 {Shannon,P (1934)-Hey,B ICCF 2018 0-1}) (3... e5 4. d4 exd4 5. Nxe4 Nc6 6. Bc4 d5 7. Qh5+ g6 8. Qxd5 Qxd5 9. Bxd5 Nge7 10. Bb3 Bf5 11. f3 Na5 12. Ba4+ c6 13. Nd6+ Kd7 14. Nf7 Rg8 15. g4 {Carvalho,L (2226)-Sánchez,M (2319) ICCF 2017 0-1}) 4. d3 (4. Nc3 Nf6 5. d4 h6 6. Nh3 Bxh3 7. gxh3 Nc6 8. Bb5 Qd6 9. Be3 O-O-O 10. Qd2 a6 11. Bxc6 Qxc6 12. O-O-O e6 13. f4 exf3 14. Rhf1 Ne4 15. Nxe4 dxe4 { Aannevik,B (1413)-Brusiani,A (2013) ICCF 2014 0-1 (27)}) 4... Qd6 (4... Nf6 5. dxe4 (5. Nc3 h6 6. Nh3 Bxh3 7. gxh3 exd3 8. Qxd3 Nc6 9. Be3 Qd7 10. Qg6+ Kd8 11. O-O-O e6 12. Rg1 Ne7 13. Qg2 Kc8 14. Bd4 Nc6 15. Bb5 Bd6 16. f3 a6 { Aymard,M (2072)-Sabbatini,G (1936) ICCF 2014 1/2 (68)}) (5. Be2 exd3 6. Bxd3 Qd6 7. c4 Qe5+ 8. Be2 e6 9. O-O Bc5 10. cxd5 Bd6 11. g3 Qxd5 12. Bd3 O-O 13. Nc3 Qa5 14. Nce4 Nxe4 15. Bxe4 h6 16. Qh5 Nc6 {Hansen,R-Sabbatini,G (1936) ICCF 2014 0-1 (43)}) 5... h6 (5... Nxe4 6. Nxe4 dxe4 (6... Bf5 7. Ng3 e6 8. Nxf5 exf5 9. Qf3 Qe7+ 10. Kd1 Qe6 11. Bb5+ Kf7 12. Re1 Qb6 13. Qxf5+ {1-0 (13) Krett,V (1798)-Aannevik,B (1413) ICCF 2014}) 7. Qh5+ (7. Qxd8+ Kxd8 8. Bc4 Nc6 9. Be3 (9. Bd5 Bf5 10. Bxc6 bxc6 11. Be3 e6 12. Nd2 Bb4 13. c3 Ba5 14. O-O-O Ke7 15. Bc5+ Kf7 16. Rde1 Bb6 17. Bxb6 axb6 18. a3 b5 19. Nxe4 Bxe4 20. Rxe4 Ra4 {Neri,E (1862)-Aannevik,B (1413) ICCF 2014 1-0 (50)}) 9... Bf5 10. Nd2 e6 11. O-O-O Ke8 12. Rhe1 Bb4 13. a3 Bd6 14. h3 h5 15. Bb5 a6 16. Bxc6+ bxc6 17. Bd4 e5 18. Nxe4 Kd7 {Di Pietro,R (1673)-Aannevik,B (1413) ICCF 2014 1-0 (36)}) (7. Bb5+ c6 8. Qh5+ {1-0 (8) Palladino,M (2099)-Aannevik,B (1413) ICCF 2014}) 7... g6 8. Qe5 Rg8 9. Qxe4 (9. Nc3 Bf5 10. Nd5 Qd6 11. Nxc7+ Kd7 12. Qxd6+ exd6 13. Nxa8 Nc6 14. Bc4 Be6 15. Bxe6+ {1-0 (15) De Smet,K (2236)-Aannevik,B (1413) ICCF 2014}) (9. Bc4 Bg7 10. Qxe4 Nc6 11. Bxg8 {1-0 (11) Ritmeester,G-Aannevik, B (1413) ICCF 2014}) 9... Bg7 (9... Bf5 10. Qxb7 Nd7 11. Bb5 Rb8 12. Bxd7+ Bxd7 13. Qxa7 Bc6 14. O-O Rb7 15. Qe3 Bg7 16. Nc3 Qd4 17. Qe6 {1-0 (17) Brusiani,A (2013)-Aannevik,B (1413) ICCF 2014}) 10. Bb5+ (10. Nc3 Qd4 11. Qxd4 Bxd4 12. Nd5 Bb6 13. Bc4 Rf8 14. O-O e6 15. Nxb6 axb6 16. Re1 Ke7 17. Bg5+ {1-0 (17) Vieito Soria,L (2065)-Aannevik,B (1413) ICCF 2014}) 10... c6 11. Bc4 Bf5 (11... e6 12. Nc3 Bxc3+ (12... Qd4 13. Qe2 Qe5 14. Ne4 b5 15. Bb3 Na6 16. f4 Qc7 17. c3 Ke7 18. f5 gxf5 19. Bg5+ Kf8 20. Rd1 Bd7 21. O-O Be5 22. Qh5 Be8 23. Qh6+ { 1-0 (23) De Smet,K (2236)-Neri,E (1862) ICCF 2014}) 13. bxc3 b5 14. Bb3 Bd7 15. Ba3 Qf6 16. O-O-O a5 17. Rxd7 Kxd7 18. Bxe6+ Qxe6 19. Rd1+ {1-0 (19) Denisov,T (2224)-Aannevik,B (1413) ICCF 2014}) 12. Qe2 Rf8 13. O-O Nd7 14. Nc3 b5 15. Bb3 a5 16. a4 b4 17. Ne4 {Gagliardi,V (2184)-Aannevik,B (1413) ICCF 2014 1-0 (27)}) 6. Nf3 (6. e5 hxg5 7. exf6 exf6 8. Bd3 Kf7 9. Be3 Qd6 10. Nc3 Be6 11. Nb5 Qe5 12. Nd4 Bc5 13. c3 Rxh2 14. Rxh2 Qxh2 15. Qb3 Nd7 16. O-O-O Bxd4 17. cxd4 Nb6 { Neri,E (1862)-Krett,V (1798) ICCF 2014 0-1 (32)}) 6... dxe4 7. Qxd8+ Kxd8 8. Ne5 Be6 (8... Rg8 9. Nc3 (9. Nf7+ Ke8 10. Bc4 e6 11. Ne5 Bd6 12. Ng6 Nc6 13. Nc3 Nd4 14. Bb5+ Kf7 15. Nh4 Nxc2+ {0-1 (15) Aannevik,B (1413)-Krett,V (1798) ICCF 2014}) (9. Bc4 e6 10. O-O Bd6 11. Rd1 Ke7 12. Bf4 g5 13. Bg3 h5 14. h3 h4 15. Bh2 Nbd7 16. Nxd7 Bxd7 17. Bxd6+ cxd6 18. a4 g4 19. hxg4 Raf8 20. Nc3 Nxg4 {Di Pietro,R (1673)-Denisov,T (2224) ICCF 2014 0-1}) 9... Nbd7 (9... e6 10. Be2 Nbd7 11. Nc4 Nb6 12. O-O Nbd5 13. Bd2 Bc5 14. Na4 Be7 15. Ne5 Bd6 16. Nf7+ Ke7 17. Nxd6 cxd6 18. c4 Nc7 19. Bb4 Na6 20. Ba3 Bd7 21. Nc3 {Vieito Soria,L (2065) -Krett,V (1798) ICCF 2014 1/2 (46)}) 10. Bf4 e6 11. O-O-O Bb4 12. Bc4 Bxc3 13. bxc3 Ke7 14. Rhe1 Nb6 15. Bb3 Nbd5 16. Bd2 b5 17. c4 bxc4 18. Bxc4 Bb7 19. h4 Rac8 20. Be2 {De Smet,K (2236)-Krett,V (1798) ICCF 2014 1/2 (37)}) 9. Nc3 (9. Ng6 Rg8 10. Bb5 a6 11. Ba4 Bf5 12. Bb3 e6 13. Nh4 Bb4+ 14. c3 Bd6 15. Nxf5 exf5 16. Bxg8 Nxg8 17. h4 Nc6 18. g3 Ne5 19. b4 g6 20. Be3 Nd3+ {Ritmeester,G-Di Pietro,R (1673) ICCF 2014 0-1 (37)}) (9. Bc4 Bxc4 10. Nxc4 e6 11. Ne5 Ke8 12. Ng6 Rg8 13. Bf4 Bd6 14. Bxd6 cxd6 15. Nc3 Nc6 16. O-O-O Kf7 17. Nf4 d5 18. Nb5 a6 19. Nc7 Rac8 20. Ncxe6 g5 {Aannevik,B (1413)-Denisov,T (2224) ICCF 2014 0-1} ) 9... Nbd7 10. Bf4 (10. Ng6 Rg8 11. Bf4 (11. Bd2 Bf5 12. Nxf8 Rxf8 13. Bc4 c6 14. O-O Kc7 15. Ne2 e5 16. Ng3 Bg6 17. Rae1 Rfe8 18. a4 a5 19. Rc1 Nb6 20. Bb3 Nbd5 21. Rfe1 b6 22. Rcd1 Rad8 {Brusiani,A (2013)-Denisov,T (2224) ICCF 2014 0-1 (61)}) (11. Be3 c6 12. O-O-O Nd5 13. Bc4 Rc8 14. Nxd5 cxd5 15. Bxd5 Bxd5 16. Rxd5 e6 17. Rd4 Bc5 18. Rxe4 Bxe3+ 19. Rxe3 Re8 20. Rd1 b6 21. Rd6 a6 22. Ne5 Rc7 {Brusiani,A (2013)-Di Pietro,R (1673) ICCF 2014 1-0 (36)}) 11... c6 ( 11... Bf7 12. Ne5 Nxe5 13. Bxe5 Nd7 14. O-O-O Kc8 15. Bg3 a5 16. Nxe4 e5 17. Be2 {1/2 (17) Vieito Soria,L (2065)-Neri,E (1862) ICCF 2014}) 12. O-O-O Nd5 13. f3 Nxc3 14. bxc3 exf3 15. gxf3 Bxa2 16. c4 e5 17. Kb2 exf4 18. Bh3 Kc7 19. Rxd7+ Kb6 20. Kxa2 Bb4 21. Rb1 c5 {Gagliardi,V (2184)-Di Pietro,R (1673) ICCF 2014 1-0 (31)}) 10... Nxe5 (10... g5 11. Bg3 Bg7 12. O-O-O Kc8 13. Bc4 Bxc4 14. Nxc4 Rd8 15. Rhe1 c6 16. Nxe4 Nxe4 17. Rxe4 Bf6 18. Re2 Nc5 19. Rde1 Nd7 20. Rxe7 Bxe7 21. Rxe7 Rh8 22. Nd6+ {Lewyk,I (2078)-Wood,B (1995) ICCF 2013 1-0 (31)}) 11. Bxe5 c6 12. O-O-O+ Ke8 13. h3 Rd8 (13... h5 14. g3 g6 15. Bg2 Bh6+ 16. Kb1 Kf7 17. Nxe4 Nxe4 18. Bxe4 Rhd8 19. Bd3 Bf5 20. Bc4+ Kf8 21. Be2 Rxd1+ 22. Bxd1 Rd8 23. g4 Be4 24. f3 Bd5 25. Be2 {Giesel,M-Denisov,T (2224) ICCF 2014 1/2 (38)}) 14. Rxd8+ {1/2 (14) Palladino,M (2099)-De Smet,K (2236) ICCF 2014}) (4... e3 5. Bxe3 (5. fxe3 e5 (5... Nf6 6. Be2 e5 7. O-O Bd6 8. c4 O-O 9. cxd5 e4 10. Nc3 exd3 11. Qxd3 Qe7 12. Nge4 Be5 13. Qc4 Kh8 14. Nxf6 Rxf6 15. Bd2 Rh6 16. h3 b5 17. Qe4 {Giesel,M-Ritmeester,G ICCF 2014 1-0}) 6. e4 (6. Nf3 Bg4 7. Be2 Bxf3 8. Bxf3 Nf6 9. Nc3 c6 10. Qe2 Bd6 11. d4 O-O 12. O-O Nbd7 13. Nd1 e4 14. Bg4 Qc7 15. g3 Nxg4 16. Qxg4 Rxf1+ 17. Kxf1 Rf8+ {Aannevik,B (1413) -Ritmeester,G ICCF 2014 0-1}) 6... Nf6 7. Qf3 d4 8. Bd2 Bd6 9. a4 h6 10. Nh3 O-O 11. Be2 Bg4 12. Qg3 Qd7 13. c3 Bxe2 14. Kxe2 Ng4 15. cxd4 exd4 16. Nf4 g5 { Di Pietro,R (1673)-Ritmeester,G ICCF 2014 0-1 (31)}) 5... e5 (5... Nf6 6. d4 Bg4 7. Be2 Bxe2 8. Qxe2 Ne4 9. Nxe4 dxe4 10. Qh5+ g6 11. Qe5 Rg8 12. Qxe4 Nc6 13. d5 {1-0 (13) Lewyk,I (1975)-Ward,B (1607) ICCF 2018}) 6. d4 (6. Be2 Nh6 7. h4 Nf5 8. c4 Bb4+ 9. Bd2 Bxd2+ 10. Nxd2 c6 11. Bg4 O-O 12. O-O Na6 13. cxd5 cxd5 14. Rc1 Qb6 15. Bf3 Rd8 16. Re1 Nb4 17. Rxe5 h6 {De Smet,K (2228) -Palladino,M (2154) ICCF 2016 1/2 (38)}) 6... exd4 (6... Bd6 7. dxe5 Bxe5 8. c3 Nf6 9. Bd3 O-O 10. Nxh7 Nxh7 11. Qh5 Nf6 12. Qxe5 Re8 13. Qg5 d4 14. cxd4 Ne4 15. Qxd8 {1-0 (15) Gagliardi,V (2184)-Ritmeester,G ICCF 2014}) 7. Qxd4 Nc6 ( 7... Nf6 8. Nc3 Nc6 (8... c6 9. Bd3 {1-0 (9) Denisov,T (2224)-Ritmeester,G ICCF 2014}) 9. Qd3 d4 10. Nb5 Bb4+ 11. c3 dxe3 12. Qxe3+ Kf8 13. cxb4 Nxb4 14. Rc1 c6 15. Nd4 Qd6 16. Bc4 Nbd5 17. Qd2 Qe5+ 18. Ne2 Bg4 19. f3 {Sabbatini,G (1936)-Hansen,R ICCF 2014 1/2 (35)}) 8. Bb5 (8. Qh4 d4 (8... Bb4+ 9. Nc3 Nge7 10. O-O-O Bxc3 11. bxc3 h6 12. c4 Qd6 13. cxd5 Qa3+ 14. Kd2 Bf5 15. dxc6 O-O-O+ 16. Bd3 Bxd3 {1/2 (16) Lichte,M (2160)-Rodríguez Fraga,Y (2101) ICCF 2017}) 9. Bf4 Qe7+ 10. Kd1 Bf5 11. Bd3 Qd7 12. Re1+ Be7 13. Bxf5 Qxf5 14. Ne6 Bxh4 15. Nxg7+ Kd7 {1/2 (15) Gagliardi,V (2148)-Palladino,M (2154) ICCF 2016}) (8. Qa4 Nf6 9. Nc3 Bb4 10. Bb5 Qd6 11. O-O O-O 12. a3 Ng4 13. axb4 Qxh2# {0-1 (13) Aannevik,B (1413)-Giesel,M ICCF 2014}) (8. Qd3 Bb4+ 9. c3 Ba5 10. Be2 Nf6 11. Bc5 Ne7 12. Qe3 Bb6 13. O-O Bxc5 14. Qxc5 O-O 15. c4 b6 16. Qa3 Ng6 17. Re1 Ng4 18. Nf3 Nxf2 19. cxd5 Ne4 {Aymard,M (2116)-Palladino,M (2154) ICCF 2016 1/2 (30)}) 8... Nf6 9. Nc3 (9. c4 Bb4+ 10. Nc3 O-O 11. Bxc6 bxc6 12. cxd5 c5 13. Qc4 Qxd5 14. Qxb4 cxb4 15. Nxd5 Nxd5 16. O-O h6 17. Ne4 Nxe3 18. fxe3 Re8 19. Rf4 Be6 20. Nc5 Bf7 {Guevara i Pijoan,J (2312)-Palladino,M (2154) ICCF 2016 1/2 }) 9... a6 10. Bxc6+ bxc6 11. Bf4 Bd6 12. Bxd6 cxd6 13. O-O O-O 14. Rae1 Nh5 15. f4 Qf6 16. Qxf6 {Denisov,T (2224)-Giesel,M ICCF 2014 0-1 (42)}) (4... Qd7 5. dxe4 e6 6. Nc3 Nf6 7. e5 h6 8. Nh3 Ne4 9. Nxe4 dxe4 10. Qg4 Nc6 11. Bb5 Qf7 12. Bxc6+ bxc6 13. Qxe4 Bb7 14. Be3 O-O-O 15. Nf4 g5 16. Qg6 {Guevara i Pijoan, J (2318)-Sabbatini,G (1936) ICCF 2014 1-0 (52)}) 5. Nc3 (5. dxe4 h6 6. Qh5+ (6. Nh3 dxe4 7. Qh5+ (7. Bd2 Nc6 8. Nc3 e5 9. Nb5 Qe7 10. Qh5+ Kd8 11. O-O-O Bd7 12. Bg5 Nf6 13. Bxf6 Qxf6 14. Nc3 g6 15. Qe2 Kc8 16. Nxe4 Qg7 17. Qe3 Be6 18. Nc5 Bf5 {Lui,E-Guevara i Pijoan,J (2318) ICCF 2014 0-1}) 7... g6 8. Qb5+ Nc6 9. Be3 (9. Nf4 e5 10. Nd5 a6 11. Qc4 b5 12. Qxe4 Bf5 13. Qf3 Nd4 14. Nxc7+ Kf7 15. Qd5+ Qxd5 16. Nxd5 Nxc2+ 17. Kd1 Nxa1 18. Nbc3 b4 19. Nxb4 Bxb4 20. Bc4+ Be6 { Di Pietro,R (1673)-Brusiani,A (2013) ICCF 2014 0-1 (34)}) 9... a6 10. Qc5 Qxc5 11. Bxc5 Nf6 12. Na3 e5 13. Bxf8 Rxf8 14. O-O-O Bg4 15. Rd2 e3 16. fxe3 Ne4 17. Rd3 b5 {Di Pietro,R (1673)-Gagliardi,V (2184) ICCF 2014 0-1 (29)} (17... g5 18. Nc4 Bxh3 19. gxh3 Nf2 20. Rg1 Nxd3+ 21. cxd3 O-O-O 22. Kd2 b5 23. Na3 Rf2+ 24. Be2 Nb4 25. Rf1 Rxh2 26. Rf3 e4 27. Rf6 exd3 28. Kc3 dxe2 {0-1 (28) Di Pietro, R (1673)-Giesel,M ICCF 2014})) (6. Nf3 dxe4 7. Nfd2 (7. Qxd6 exd6 8. Nd4 (8. Nh4 Ne7 9. Be3 g5 10. Bd4 Rg8 11. Nc3 Nbc6 12. Bf6 gxh4 13. Bxh4 Bg7 14. O-O-O Bxc3 15. bxc3 Ne5 16. Bb5+ Bd7 17. Bxd7+ Kxd7 18. Bg3 Ng4 19. Rdf1 Raf8 { Aannevik,B (1413)-Gagliardi,V (2184) ICCF 2014 0-1}) 8... d5 9. Nc3 Nf6 10. Bf4 c6 11. Be2 a6 12. O-O c5 13. Nb3 Nc6 14. Rad1 c4 15. Nd4 Bc5 16. Nxc6 bxc6 17. Be3 Bxe3 18. fxe3 Ng4 {Aannevik,B (1413)-Di Pietro,R (1673) ICCF 2014 0-1 (44)} ) 7... Bf5 (7... Nf6 8. Nc3 Bf5 9. Qe2 Nc6 10. Ndxe4 Nxe4 11. Nxe4 Qb4+ 12. Nd2 Nd4 13. c3 Nxe2 14. cxb4 Nd4 15. Nb3 Nc2+ 16. Ke2 Nxa1 17. Nxa1 O-O-O 18. Bd2 Bd3+ {1/2 (18) Neri,E (1862)-Vieito Soria,L (2065) ICCF 2014}) 8. Qe2 Nc6 9. Nxe4 Qg6 10. f3 Nf6 11. Nxf6+ gxf6 12. Be3 O-O-O 13. Na3 e5 14. g4 Bb4+ 15. Kf2 Be6 16. c3 Bxa3 (16... Be7 17. Qc2 f5 18. Bd3 e4 19. fxe4 fxe4 20. Bxe4 Rhf8+ { 0-1 (20) Neri,E (1862)-De Smet,K (2236) ICCF 2014}) 17. bxa3 e4 {Neri,E (1862) -Palladino,M (2099) ICCF 2014 0-1 (26)}) (6. Qxd5 Qxd5 7. exd5 hxg5 8. Bb5+ Nd7 9. Bxd7+ Bxd7 10. Bxg5 Nf6 11. Bxf6 exf6 12. c4 Bb4+ 13. Nc3 Rh4 14. O-O Bxc3 15. bxc3 Rxc4 16. Rfe1+ Kf7 17. Re3 Re8 {Aannevik,B (1413)-Palladino,M (2099) ICCF 2014 0-1}) 6... g6 7. Qh4 Bg7 (7... c6 8. Bd3 Bg7 9. Nf3 g5 10. Qh5+ Kf8 11. O-O Nd7 12. e5 Nxe5 13. Nxe5 Bxe5 14. f4 Bxf4 15. Bxf4 gxf4 16. Nc3 Nf6 17. Qh4 e5 18. Ne2 Bg4 19. Nxf4 {Shannon,P (1934)-Perry,W (2279) ICCF 2018 1-0}) 8. Nf3 Bf6 (8... Qe6 9. Na3 Qxe4+ 10. Qxe4 dxe4 11. Nh4 g5 12. Ng6 Rh7 13. Bc4 Nf6 14. h4 Bf5 15. Nb5 Na6 16. Ne5 e6 17. Nd4 Nd5 18. Nxf5 Bxe5 19. hxg5 Nab4 20. Bxd5 {Aymard,M (2072)-Lui,E ICCF 2014 1-0}) (8... g5 9. Qh5+ Kf8 10. exd5 Bf5 11. Nfd2 Nf6 12. Qd1 Nxd5 13. Nc4 Qe6+ 14. Ne3 Nxe3 15. fxe3 Be5 16. Nd2 Kg7 17. Bc4 Qg6 18. e4 Be6 19. Bxe6 Qxe6 20. Qe2 {Bush,F (2339)-Wharrier,J (2318) ICCF 2008 1/2 (34)}) 9. e5 (9. exd5 Bxh4 10. Nxh4 Qb4+ 11. Nc3 Qxh4 {0-1 (11) Aymard,M (2116)-Gagliardi,V (2148) ICCF 2016}) 9... Bxe5 10. Bd3 (10. Na3 Bf6 ( 10... Qf6 11. Nb5 Na6 12. c3 c6 13. Nbd4 Nc5 14. b4 Ne4 15. Bd3 Bf5 16. Be3 g5 17. Qh5+ Bg6 18. Qh3 Bd6 19. O-O e5 20. c4 Rh7 21. cxd5 cxd5 22. Nb5 {Bush,F (2353)-Hickman,H (2298) ICCF 2008 1-0 (36)}) 11. Nb5 (11. Qa4+ c6 12. Bd3 Bf5 13. Bxf5 gxf5 14. Qb3 b5 15. O-O e5 16. c4 Ne7 17. cxd5 Qxd5 18. Qxd5 cxd5 19. Nxb5 Kd7 20. Nd2 Rc8 21. Nb3 a6 22. Nc3 d4 {Denisov,T (2238)-Gagliardi,V (2148) ICCF 2016 0-1 (28)}) 11... Bxh4 12. Nxd6+ exd6 13. Nxh4 Ne7 14. Bd3 Kf7 15. O-O g5 16. Nf3 Bf5 17. Be2 Nbc6 18. c3 Ng8 19. b4 Nf6 20. b5 Ne5 21. Nd4 Bd3 { Denisov,T (2238)-De Smet,K (2228) ICCF 2016 1/2 (43)}) (10. Nc3 Bf6 11. Qa4+ c6 12. Be3 Bf5 13. O-O-O Bxc3 14. bxc3 Nf6 15. Bd3 e5 16. Nxe5 Qxe5 17. Bf4 Qe7 18. Rhe1 Be4 19. f3 Nbd7 20. fxe4 Nc5 21. Qd4 O-O-O {De Smet,K (2236)-Vieito Soria,L (2065) ICCF 2014 1/2}) 10... g5 (10... Bg7 11. c4 g5 12. Qh5+ Kf8 13. O-O Nf6 14. Qg6 Nc6 15. Nc3 Be6 16. cxd5 Bf7 17. Qf5 e6 18. Qh3 g4 19. Qg3 Qxg3 20. fxg3 Nb4 21. Ne5 Nxd3 22. Nxd3 {Aymard,M (2116)-De Smet,K (2228) ICCF 2016 1/2 (39)}) 11. Qh5+ Kd8 12. Nxe5 (12. O-O Nc6 13. Nxe5 (13. Re1 Nf6 14. Nxe5 Nxe5 15. Qe2 Nfg4 16. g3 Rf8 17. f4 Nxd3 18. cxd3 e5 19. h3 Qc5+ 20. Kg2 gxf4 { 0-1 (20) Lui,E-Lanzani,P (2185) ICCF 2014}) 13... Nxe5 14. Qe2 (14. Bxg5 Nxd3 15. cxd3 Qe5 16. Bxe7+ Qxe7 17. Qxd5+ Qd7 18. Qe5 Rh7 19. Nc3 Qd6 20. Qe4 Qd7 21. Rfe1 Re7 22. Qc4 Qe8 23. Kf1 Qf7 24. Qb4 b6 25. Qd4+ Bd7 {Shannon,P (1934) -Anderson,C ICCF 2019 0-1 (41)}) 14... Nf6 15. Nc3 (15. f3 Nxd3 16. cxd3 e5 17. Re1 Re8 18. b3 Bf5 19. Bb2 d4 20. Nd2 Nd5 21. Ne4 Qg6 22. Rac1 Kc8 23. Qc2 Bd7 24. Qc5 Bc6 25. Nf2 h5 26. Re4 a5 {Aymard,M (2072)-Guevara i Pijoan,J (2318) ICCF 2014 0-1 (54)}) 15... c6 16. Bd2 Neg4 17. g3 Ne5 18. Rfe1 Nxd3 19. cxd3 Bg4 20. f3 Bh5 21. d4 Nd7 22. Kg2 Qf6 23. Rad1 Rf8 {Ramponelli,R (2297) -Chiricuta,M (2204) ICCF 2010 0-1 (76)}) 12... Qxe5+ 13. Qe2 Qxe2+ 14. Bxe2 Nf6 15. f4 g4 16. Be3 Bf5 {Aymard,M (2116)-Denisov,T (2238) ICCF 2016 1-0 (71)} 17. c4 e6 18. Nc3 Nbd7 19. O-O-O c6 20. Bd4 Ke7 21. Rhe1 Kf7 22. b3 b6 23. Kb2 Rad8 24. a3 Rhg8 25. cxd5 exd5 26. Bf1 Rge8 27. Rxe8 Rxe8 28. b4 Ne4 {Aymard,M (2116)-Guevara i Pijoan,J (2312) ICCF 2016 0-1 (45)}) 5... h6 (5... e5 6. dxe4 d4 7. Nb5 Qe7 8. c3 a6 9. Na3 (9. Bc4 axb5 10. Bf7+ Qxf7 11. Nxf7 Kxf7 12. Qh5+ g6 13. Qxe5 Bg7 14. Qxc7+ Nd7 15. Qf4+ Ke8 16. cxd4 Bxd4 17. Qd2 Ra4 18. Qe2 { 1-0 (18) Sabbatini,G (1936)-Lui,E ICCF 2014}) 9... Nf6 (9... Nc6 10. Bc4 Nh6 11. Bd5 dxc3 12. bxc3 Nd8 13. Nc4 Ne6 14. Nxe6 Bxe6 15. Bxh6 Bxd5 16. Qxd5 gxh6 17. Qxb7 Rd8 18. Qxa6 Bg7 19. Qc6+ {1-0 (19) Guevara i Pijoan,J (2318)-Lui,E ICCF 2014}) 10. cxd4 h6 11. Nf3 exd4 12. Be2 Nc6 (12... Qxe4 13. O-O Bxa3 14. bxa3 O-O 15. Bc4+ Kh8 16. Re1 Qh7 17. Nxd4 Bd7 18. Bd3 Qg8 19. Ne2 Be8 20. Bb2 Nbd7 21. Nf4 Bf7 22. Qc2 Rfe8 23. Qxc7 Rac8 24. Qa5 {Lanzani,P (2185)-Lui,E ICCF 2014 1-0 (28)}) 13. O-O Bd7 14. Nxd4 O-O-O 15. Qa4 Qxe4 16. Bxa6 Nxd4 17. Bxb7+ {Hansen,R-Lui,E ICCF 2014 0-1 (29)}) (5... Nf6 6. dxe4 (6. Ncxe4 dxe4 7. Nxe4 Nxe4 8. dxe4 Qb4+ 9. c3 Qxe4+ 10. Qe2 Qxe2+ 11. Bxe2 e5 12. O-O Be6 13. c4 Nc6 14. a3 Nd4 15. Bd3 O-O-O 16. Be4 Bxc4 17. Bg5 Bxf1 {Aannevik,B (1413) -Vieito Soria,L (2065) ICCF 2014 0-1}) 6... h6 (6... e6 7. Nb5 Qe5 8. f4 Bb4+ 9. c3 Bxc3+ 10. bxc3 Nxe4 11. fxe5 Na6 12. Qf3 Nxg5 13. Bxg5 Bd7 14. Be2 Bc6 15. Rf1 {1-0 (15) Denisov,T (2224)-Di Pietro,R (1673) ICCF 2014}) 7. Nb5 Qb6 ( 7... Qd8 8. e5 hxg5 9. exf6 c6 10. f7+ Kxf7 11. Qf3+ Kg8 12. Bxg5 cxb5 13. Bxb5 Qa5+ 14. b4 Qxb4+ 15. c3 Qxb5 16. a4 Qc4 17. Rd1 e6 18. Rd4 Qb3 19. O-O { Anderson,L-Moser,M ICCF 2011 0-1 (29)}) 8. Be3 (8. e5 hxg5 (8... Ng4 9. Nh3 c6 10. Be2 Nxe5 11. Be3 Qa5+ 12. Bd2 Qb6 {1/2 (12) Gagliardi,V (2184)-Denisov,T (2224) ICCF 2014}) 9. exf6 gxf6 (9... c6 10. fxe7 Bxe7 11. Be3 Qd8 12. Nc3 Bf6 13. Qd3 Be6 14. O-O-O Nd7 15. Re1 O-O 16. Qd2 Re8 17. Kb1 Bf7 18. Rd1 b5 19. f3 b4 20. Ne2 c5 21. Nc1 {Brusiani,A (2013)-Giesel,M ICCF 2014 0-1 (51)}) 10. Be3 Qa5+ 11. c3 (11. b4 Qxb4+ 12. c3 Qa5 13. Qxd5 Nc6 14. Bd3 Rh6 15. O-O e6 16. Qb3 a6 17. Nd4 Nxd4 {0-1 (19) Guevara i Pijoan,J (2318)-Hansen,R ICCF 2014}) 11... c6 12. b4 Qd8 13. Nxa7 Be6 14. Qd4 Nd7 15. Bxg5 Bf7 16. Be3 e5 17. Qd2 d4 18. cxd4 Rxa7 19. dxe5 Ra4 {Ritmeester,G-Giesel,M ICCF 2014 0-1}) (8. Nf3 a6 ( 8... e5 9. Be2 Bd7 10. a4 Bxb5 11. axb5 Bc5 12. O-O Nbd7 13. Nd2 Nxe4 14. Nxe4 dxe4 15. Qe1 Qd6 16. Be3 Bxe3 17. fxe3 Rf8 18. Qg3 O-O-O 19. Rfd1 Qc5 20. Bg4 { Bobykin,K-Efremov,A (2111) ICCF 2008 1-0 (41)}) 9. e5 axb5 10. exf6 Qxf6 (10... exf6 11. Bd3 Kd8 12. O-O g5 13. Be2 c6 14. Be3 Bc5 15. Nd4 b4 16. c3 bxc3 17. bxc3 Re8 18. Bh5 Re7 19. Rb1 Qa7 20. c4 Qa4 21. Qxa4 Rxa4 22. Nxc6+ {Palladino, M (2099)-Krett,V (1798) ICCF 2014 1-0 (54)}) 11. Qxd5 c6 12. Qe5 Nd7 13. Qg3 e5 14. Bd3 Bd6 15. Nd2 Nc5 16. Bg6+ Ke7 17. Ne4 Nxe4 18. Bxe4 Ra4 19. Qe3 Bf5 { Gagliardi,V (2184)-Giesel,M ICCF 2014 1/2 (50)}) (8. Bf4 Na6 (8... e5 9. Bxe5 Na6 10. Nf3 Nxe4 11. Bd4 Bc5 12. Nc3 Nb4 13. Bb5+ c6 14. Ba4 Bg4 15. Bxc5 Qxc5 16. O-O O-O-O 17. h3 Bh5 18. g4 Bg6 19. Qd4 Na6 20. Qxg7 {Krett,V (1798)-De Smet,K (2236) ICCF 2014 0-1 (44)}) 9. Be3 Qa5+ 10. Bd2 Qb6 11. Be3 Qa5+ { 1/2 (11) Krett,V (1798)-Vieito Soria,L (2065) ICCF 2014}) 8... c5 9. e5 (9. Nf3 a6 10. Nc3 d4 (10... dxe4 11. Ne5 (11. Nh4 Be6 12. Ng6 Rg8 13. Qd2 Nbd7 14. O-O-O Bf5 15. Nd5 Nxd5 16. Qxd5 Qxg6 17. Qxg8 Bg4 18. Rd2 Be6 19. Qh8 Ne5 20. Bxc5 Nf7 {1/2 (20) Palladino,M (2154)-Denisov,T (2238) ICCF 2016}) 11... Bf5 12. Be2 Nbd7 (12... Qxb2 13. O-O g6 14. Qe1 b5 15. a3 Nd5 16. Nxd5 Qxe5 17. Rd1 Kf7 18. f3 exf3 19. Bxf3 Nc6 20. g4 Rg8 21. gxf5 Nd4 22. f6 Nxf3+ 23. Rxf3 e6 24. Ne7 {Lanzani,P (2185)-Sabbatini,G (1936) ICCF 2014 1-0 (28)}) 13. Nd5 Qd6 14. Nxf6+ Nxf6 15. Bf4 Rd8 16. c4 Qxd1+ 17. Rxd1 Rxd1+ 18. Bxd1 Rg8 19. Be3 e6 20. Ba4+ Kd8 21. Ke2 Kc7 22. h3 {Palladino,M (2099)-Vieito Soria,L (2065) ICCF 2014 1/2 (25)}) 11. Nxd4 cxd4 12. Bxd4 Qc6 13. Be2 Kf7 14. Qd3 Bg4 15. f3 Be6 16. O-O-O Kg8 17. f4 Bg4 18. Bxg4 Nxg4 19. h3 Nf6 20. Rhe1 a5 {Denisov,T (2238) -Guevara i Pijoan,J (2312) ICCF 2016 1-0 (33)}) 9... hxg5 10. exf6 Be6 11. fxe7 (11. c4 dxc4 12. Qa4 Nd7 13. f7+ Bxf7 14. O-O-O a6 15. Na3 O-O-O 16. Bxc4 Bh5 17. Rd2 e5 18. Bxg5 Nf6 19. Rxd8+ Qxd8 20. Bxa6 bxa6 21. Qxa6+ Kb8 22. Nb5 Qd7 {Krett,V (1798)-Palladino,M (2099) ICCF 2014 0-1 (44)}) 11... Bxe7 12. Qc1 (12. Qd2 a6 13. Bxg5 axb5 14. Qe3 Bxg5 15. Qxg5 O-O 16. Bd3 c4 17. Bg6 Qxf2+ 18. Kd1 Nc6 19. Qh5 Rf6 20. Re1 Qd4+ {0-1 (20) Mallassagne,F-Peled,S (2089) ICCF 2015}) 12... a6 13. Na3 Nc6 14. Bd3 O-O-O 15. Bxg5 Bxg5 16. Qxg5 Qxb2 17. O-O { Ritmeester,G-Denisov,T (2224) ICCF 2014 0-1}) (5... c6 6. dxe4 h6 (6... d4 7. Ne2 e5 8. f4 Nd7 9. fxe5 Nxe5 10. Qxd4 Nf6 11. Bf4 Qxd4 12. Nxd4 Bd6 13. Bg3 Nh5 14. Bxe5 Bxe5 15. c3 Bf6 16. Nge6 Be5 17. g3 Ke7 18. Bc4 {Guevara i Pijoan, J (2312)-De Smet,K (2228) ICCF 2016 1-0 (44)}) 7. Nf3 dxe4 8. Nxe4 (8. Qxd6 exd6 9. Nxe4 d5 10. Nc3 Bd6 11. Be3 Ne7 12. Bd3 Bf5 13. O-O-O O-O 14. g3 Bxd3 15. Rxd3 Rxf3 16. Kd2 Nd7 17. Ke2 Raf8 18. Bxa7 Rxd3 19. cxd3 b6 {Aannevik,B (1413)-De Smet,K (2236) ICCF 2014 0-1 (30)}) 8... Qxd1+ 9. Kxd1 Bg4 10. Be2 Nd7 11. Nd4 Bxe2+ 12. Kxe2 Ngf6 13. Ne6 Nxe4 14. Nc7+ Kf7 15. Nxa8 e5 16. Rd1 Nef6 17. f4 {Vieito Soria,L (2065)-De Smet,K (2236) ICCF 2014 0-1 (25)}) (5... exd3 6. Bxd3 c6 (6... e5 7. Nb5 Qd7 8. Qh5+ g6 9. Bxg6+ Ke7 10. Bd3 h6 11. Qf7+ Kd8 12. Qxf8+ Qe8 13. Nf7+ Kd7 14. Bf5+ {1-0 (14) Giesel,M-Di Pietro,R (1673) ICCF 2014}) 7. Bxh7 (7. O-O Nf6 8. Re1 Bg4 9. f3 Bc8 10. f4 g6 11. Qe2 Nbd7 12. Qe6 Qxe6 13. Nxe6 Kf7 14. f5 gxf5 15. Bxf5 Nc5 16. Ng5+ Kg7 17. Bxc8 Rxc8 18. Bf4 h6 {Lui,E-Sabbatini,G (1936) ICCF 2014 0-1 (26)}) 7... Nh6 8. Qh5+ Kd8 9. O-O e5 10. f4 Bg4 11. Qh4 Be7 12. h3 Rxh7 13. hxg4 Rh8 14. fxe5 Qxe5 15. Bf4 Qd4+ 16. Rf2 Kc8 17. Re1 {Lanzani,P (2185)-Hansen,R ICCF 2014 1-0 (35)}) 6. Nb5 (6. Nh3 Nf6 7. Nf4 Nc6 8. Nfxd5 Nxd5 9. Qh5+ g6 10. Qxd5 Nb4 11. Qb3 Be6 12. Qa4+ Bd7 13. Nb5 Bxb5 14. Qxb5+ c6 15. Qc4 exd3 16. Bxd3 Nxd3+ 17. cxd3 Bg7 { Sabbatini,G (1936)-Aymard,M (2072) ICCF 2014 0-1 (58)}) 6... Qc6 (6... Qb6 7. Qh5+ g6 8. Nxc7+ Kd7 9. Nxa8 Qa5+ 10. Bd2 Qxd2+ 11. Kxd2 gxh5 12. Nf7 Rh7 13. Ne5+ Kd6 14. Ng6 exd3 15. Bxd3 Rf7 16. c4 Bg7 17. f4 e6 18. cxd5 {Sabbatini,G (1936)-Guevara i Pijoan,J (2318) ICCF 2014 1/2 (57)}) 7. Nxc7+ (7. Qh5+ g6 8. Nxc7+ Kd7 9. Qg4+ (9. Qh3+ Kxc7 10. Bf4+ Kd8 11. Nf7+ Ke8 12. Qg3 Kxf7 13. O-O-O Na6 14. dxe4 dxe4 15. a3 Be6 16. Be5 Bg7 17. Bxg7 Kxg7 18. Qe5+ Nf6 19. Bxa6 bxa6 {0-1 (19) Ritmeester,G-Gagliardi,V (2184) ICCF 2014}) 9... Kxc7 10. Qg3+ (10. Qf4+ Qd6 11. Nf7 Bg7 12. Nxd6 {1-0 (12) Sabbatini,G (1936)-Lanzani,P (2185) ICCF 2014}) 10... Kd7 11. Nf7 Bg7 12. Nxh8 (12. dxe4 Qe6 (12... Rh7 13. Bf4 Bxb2 14. Ne5+ Bxe5 15. Bxe5 Ke8 16. Bb5 Qxb5 17. Qxg6+ Rf7 18. Qxg8+ Rf8 19. Qg6+ Rf7 20. Qg8+ {1/2 (20) Caliguire,J (2133)-Akrill,R (2103) ICCF 2017}) 13. Bb5+ Nc6 14. Be3 Qxe4 15. O-O Bxb2 16. Rae1 Qf5 17. c4 Qxf7 18. cxd5 Qf6 19. Bc1 Bxc1 20. Rxc1 Ke8 21. dxc6 Kf7 22. Bc4+ e6 23. Qc7+ Qe7 {Caliguire,J (2113)-Anderson,A (2158) ICCF 2016 1/2 (42)}) 12... Bxh8 13. dxe4 Qe6 (13... Qxc2 14. exd5 (14. Qg4+ Kd8 15. Qxg6 Qxe4+ 16. Qxe4 dxe4 17. Bc4 e6 18. O-O Bg7 19. a4 Nc6 20. Ra3 Ke7 21. Rg3 Kf7 22. f3 Bd4+ 23. Kh1 e3 24. f4 Nf6 25. Bxe3 Ne4 {Guevara i Pijoan,J (2312)-Gagliardi,V (2148) ICCF 2016 1/2 (37)}) (14. Qxg6 Qxe4+ 15. Qxe4 dxe4 16. Bc4 e6 17. O-O b6 18. Re1 Bb7 19. Bf4 Bxb2 20. Rad1+ Ke7 21. Rd6 e5 22. Re6+ Kf8 23. Bxh6+ Nxh6 24. Rxh6 Nd7 25. Ba6 Bd5 { Soto Palomo,C-Iriarte Gómez,E (2237) ICCF 2006 0-1 (71)}) 14... Kd8 15. d6 Qe4+ 16. Be2 Nc6 17. dxe7+ Ngxe7 18. Qf3 Qxf3 19. Bxf3 Nd4 20. Bd1 Bg7 {0-1 (20) Lui,E-Aymard,M (2072) ICCF 2014}) 14. Bb5+ (14. Qd3 Qxe4+ 15. Qxe4 dxe4 16. Bc4 e6 17. O-O Bg7 18. c3 Nc6 19. Bf4 e5 20. Be3 Nf6 21. h3 b6 22. Rfd1+ Kc7 23. b4 Ne7 24. a4 Bb7 25. a5 Ned5 {De Smet,K (2236)-Palladino,M (2099) ICCF 2014 0-1 (40)}) 14... Nc6 15. O-O dxe4 16. Ba4 Ke8 (16... g5 17. Bb3 Qg6 18. Ba4 Ke8 19. h4 Bd7 20. hxg5 Be5 21. f4 Bd6 22. Qh4 Nd4 23. Bxd7+ Kxd7 24. Qf2 Nc6 25. c4 Rf8 26. c5 Bc7 27. Qe2 Kc8 28. Bd2 {Guevara i Pijoan,J (2312)-Denisov,T (2238) ICCF 2016 0-1 (34)}) 17. c3 Be5 18. f4 Bc7 {Vieito Soria,L (2065)-Palladino,M (2099) ICCF 2014 1/2 (26)}) (7. dxe4 hxg5 8. exd5 Qd7 9. Bxg5 a6 (9... e5 10. dxe6 Qxe6+ 11. Be2 Bd6 12. Nxd6+ Qxd6 13. Qxd6 cxd6 14. O-O-O Nh6 15. Bh5+ Nf7 16. Rhe1+ Kf8 17. Be7+ Kg8 18. Bxd6 Nxd6 19. Rxd6 Bd7 20. Be8 Rh6 21. Rxh6 { Endsley,B (2251)-Iriarte Gómez,E (2249) ICCF 2006 1-0 (37)}) 10. Nc3 e5 (10... Nf6 11. Bd3 (11. Qd2 e5 12. O-O-O Bb4 13. Re1 Bd6 14. f4 Qe7 15. h4 O-O 16. h5 Bf5 17. h6 Nbd7 18. g4 Bxg4 19. Bd3 Rfe8 20. hxg7 Qxg7 21. Bh6 Qf7 22. fxe5 Nxe5 {Aymard,M (2072)-Hansen,R ICCF 2014 1-0 (25)}) 11... Qd6 (11... Qg4 12. Bg6+ Kd8 13. Qxg4 Bxg4 14. f3 Bh5 15. Bf5 Nbd7 16. O-O-O Kc8 17. h4 Kb8 18. Ne2 Ka7 19. g4 Be8 20. Rhe1 Rc8 21. Nf4 {1-0 (21) Brusiani,A (2013)-Ritmeester,G ICCF 2014}) (11... Nxd5 12. Bg6+ Kd8 13. Qxd5 Qxd5 14. Nxd5 Be6 15. O-O-O Nd7 16. Nf4 Bg4 17. f3 Bxf3 18. gxf3 Kc8 19. Bf5 e5 20. Rxd7 b5 21. Rd8+ Kb7 22. Be4+ c6 23. Bxc6+ {Lui,E-Hansen,R ICCF 2014 1-0}) 12. Qd2 Bf5 13. Bf4 e5 14. Bxf5 exf4 15. O-O-O Kd8 16. h3 Nbd7 17. Rhe1 Rh5 18. Re6 Rxf5 19. Rxd6 Bxd6 20. Qd3 Rg5 21. h4 Rxg2 22. Ne4 {Brusiani,A (2013)-Gagliardi,V (2184) ICCF 2014 1/ 2 (55)}) (10... Qd6 11. Qd3 Qe5+ 12. Be3 Bf5 13. Qd2 Qd6 14. O-O-O Nd7 15. Bd3 Bxd3 16. Qxd3 Ngf6 17. Qg6+ Kd8 18. f4 b5 19. Rhe1 Rb8 20. h3 b4 21. Ne4 Nxe4 22. Qxe4 {Hansen,R-Lanzani,P (2185) ICCF 2014 0-1 (41)}) 11. Bd3 (11. Qf3 Qf7 12. Qg3 Bd6 13. Qe3 Nf6 14. O-O-O Ng4 15. Qg3 Nxf2 16. Bd3 Nxd1 17. Rxd1 O-O 18. Ne4 Qh5 19. Bf6 Qg6 20. Qxg6 {1-0 (20) Hansen,R-Aymard,M (2072) ICCF 2014}) (11. f4 Bd6 12. Bd3 Nf6 13. fxe5 Bxe5 14. Qe2 O-O 15. O-O Qe8 16. Ne4 Nbd7 17. Rae1 Bd4+ 18. Kh1 Nxe4 19. Rxf8+ Nxf8 20. Bxe4 Qe5 21. Qd2 Bxb2 22. Bh7+ Nxh7 { Guevara i Pijoan,J (2318)-Lanzani,P (2185) ICCF 2014 1/2 (42)}) 11... Be7 ( 11... Qd6 12. f4 Nd7 13. O-O Be7 14. Qf3 e4 15. Nxe4 Qb6+ 16. Kh1 Ndf6 17. Bxf6 gxf6 18. Rfe1 Bd7 19. d6 cxd6 20. Nc3 Kf8 21. Nd5 Qxb2 22. Qe3 Rh6 23. Rab1 { Denisov,T (2224)-Brusiani,A (2013) ICCF 2014 1-0 (39)}) (11... Qf7 12. f4 Nd7 13. Qe2 Bd6 14. O-O Ngf6 15. Rae1 e4 16. Bxe4 Kf8 17. h4 Nh5 18. Rf3 Nxf4 19. Bxf4 Bxf4 20. d6 {1-0 (20) Aymard,M (2072)-Lanzani,P (2185) ICCF 2014}) 12. Bg6+ (12. f4 Qd6 13. Qf3 Nd7 14. Bg6+ Qxg6 15. O-O-O Bxg5 16. fxg5 Qxg5+ 17. Kb1 Ngf6 {0-1 (17) Hansen,R-Guevara i Pijoan,J (2318) ICCF 2014}) 12... Kd8 13. Qf3 (13. Qd2 Qd6 14. Bd3 Nd7 15. O-O Nc5 16. Rae1 Nxd3 17. Bxe7+ Nxe7 18. Qxd3 Bf5 19. Qg3 Ng6 20. Ne4 Bxe4 21. Rxe4 Kc8 22. c4 b6 23. b4 Rh6 24. Rd1 Kb7 { Lanzani,P (2185)-Guevara i Pijoan,J (2318) ICCF 2014 0-1 (40)}) 13... Nh6 14. h4 Qd6 15. Bxe7+ Qxe7 (15... Kxe7 16. Qd3 Nd7 17. Qg3 Nf6 18. O-O-O Kf8 19. h5 Bd7 20. f3 Be8 21. Qf2 Nf7 22. g4 Qb4 23. Kb1 Nd6 24. a3 Qf4 25. Ne2 Qc4 26. b3 Qb5 27. Bd3 {Guevara i Pijoan,J (2318)-Aymard,M (2072) ICCF 2014 1/2 (50)}) 16. d6 cxd6 17. Nd5 Qe6 18. Be4 Nf5 {Lanzani,P (2185)-Aymard,M (2072) ICCF 2014 1/ 2 (27)}) 7... Qxc7 (7... Kd7 8. Nge6 Na6 9. Bf4 Nxc7 10. Nxc7 e5 11. Bxe5 Bd6 12. Bxd6 Kxd6 13. Nxa8 Nf6 14. dxe4 Nxe4 15. Qf3 Be6 16. Qf4+ Kd7 17. Bb5 Qxb5 18. Qc7+ Ke8 19. Qxg7 {Palladino,M (2099)-Neri,E (1862) ICCF 2014 1-0}) 8. Qh5+ Kd7 9. Nf7 Nf6 10. Ne5+ (10. Qg6 Rg8 11. dxe4 Qb6 12. f3 e6 13. e5 Ne8 14. Nxh6 Bb4+ 15. c3 Rf8 16. cxb4 Qxb4+ 17. Kd1 gxh6 18. Bxh6 Rf5 19. Bd3 Qxb2 20. Rc1 Qd4 21. Bd2 Qxd3 {Gagliardi,V (2184)-Brusiani,A (2013) ICCF 2014 1/2 (28)}) 10... Kd6 (10... Kd8 11. Nf7+) (10... Ke6 11. Qh3+ Kd6 12. d4 Bxh3 {0-1 (12) De Smet,K (2228)-Aymard,M (2116) ICCF 2016}) 11. Qg6 Rg8 (11... Nc6 12. Nf7+ Kd7 13. dxe4 (13. Nxh8 Nb4 14. dxe4 Nxc2+ 15. Kd1 Qc5 16. Bb5+ Qxb5 17. Kxc2 Qc4+ 18. Kd1 b6 19. e5 Qd4+ 20. Kc2 Qxf2+ 21. Bd2 Ne4 22. Rad1 Ba6 23. e6+ Kc6 24. Qf7 Qxg2 {Flyckt-Olsen,J (2442)-Timm,J (2537) ICCF 1999 0-1 (25)}) 13... Nxe4 (13... Rg8 14. exd5 Nxd5 15. Bc4 e6 16. O-O Qa5 17. Rd1 Nce7 18. Qe4 g5 ( 18... g6 19. Bd2 Qc5 20. b4 Qb6 21. Be3 Qxb4 22. Rab1 Qc3 23. Bd4 Qa5 24. Rb5 Qa6 25. Rc5 {1-0 (27) Giesel,M-Brusiani,A (2013) ICCF 2014}) 19. Be2 Kc7 20. Qe5+ Kd7 21. Bg4 Rg6 22. Bh5 Bg7 23. Qe4 Rf6 24. c4 Rf5 25. Bd2 {Gagliardi,V (2148)-Aymard,M (2116) ICCF 2016 1-0 (33)}) 14. Bd3 Qa5+ 15. c3 Rg8 16. b4 (16. Bxe4 dxe4 17. Bf4 e5 18. Rd1+ Kc7 19. Nxe5 Nxe5 20. b4 Bxb4 21. O-O Ba3 22. Qf7+ Kb6 23. Qxg8 {1-0 (23) Denisov,T (2224)-Gagliardi,V (2184) ICCF 2014}) 16... Qc7 17. Bxe4 dxe4 18. O-O {1-0 (18) Giesel,M-Gagliardi,V (2184) ICCF 2014 }) 12. Bf4 Qa5+ 13. c3 Qa4 14. Nc4+ Kd7 15. b3 Qa6 16. Ne5+ (16. dxe4 Qe6 17. Ne5+ Kc7 18. f3 a6 19. Nf7+ Kb6 20. Be3+ Kc7 21. Qg3+ Kd7 22. Ne5+ Kc7 23. Nc4+ Kd8 24. Nb6 Nbd7 25. Nxa8 Qc6 26. Rd1 b5 27. e5 Ne8 {Guevara i Pijoan,J (2312) -Aymard,M (2116) ICCF 2016 1-0 (46)}) 16... Kc7 17. dxe4 b5 18. a4 Kb7 19. exd5 (19. Bxb5 Qa5 20. O-O a6 21. Be2 Nxe4 22. Nc4 Qd8 23. b4 Bd7 24. Bf3 e6 25. Bxe4 Qf6 26. Qg3 dxe4 27. Qe3 e5 28. Bxe5 Qe6 29. Qd4 Kc8 30. b5 Kd8 { Palladino,M (2154)-Aymard,M (2116) ICCF 2016 1-0 (38)}) 19... Qd6 20. Bxb5 Bd7 21. O-O Bxb5 22. axb5 Nfd7 23. Qe4 Nf6 24. Qa4 g5 25. Bg3 Qc5 26. b4 Qc7 27. Nc6 e5 28. Bxe5 Bd6 29. Bxf6 Kc8 30. Nxa7+ Kb7 31. g3 Qf7 32. Bd4 Qxd5 33. Rfd1 Bf4 34. c4 Qxc4 35. Qa3 Rd8 36. Bc5 Rxd1+ 37. Rxd1 Qe4 38. gxf4 gxf4 39. Qb3 Qg6+ 40. Kf1 {1-0 (40) Denisov,T (2238)-Aymard,M (2116) ICCF 2016} *