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1.b4 d5 2.Bb2 Bg4 3.h3 Bh5

(...)

4.a3 Nd7 (--> 1.b4 d5 2.Bb2 Bg4 3.a3 Nd7 4.h3 Bh5).

4.a3 e6 (--> 1.b4 d5 2.Bb2 Bg4 3.a3 e6 4.h3 Bh5).

4.a4 e6 5.Nf3 Nf6 6.g4 Bg6 7.g5 Nfd7 8.e3 Bh5 9.h4 h6 10.Rg1 hg5 11.Rg5 c6 12.Bd4 Be7 13.Rg7 e5 14.Bc3 e4 15.Be2 Bf6 16.Ng5 Be2 17.Ke2 Bg7 18.Bg7 Rh4 19.Qg1 Qe7 20.Qg3 Rh5 21.Nh3 f6 22.d3 Na6 23.b5 Nac5 24.bc6 bc6 0–1. Gross,Gerald – Benassi,Aspasio, corr b4/02/08, 2002.

4.c3 e6 5.Nf3 Bf3 6.ef3 a6 7.Be2 c5 8.bc5 Bc5 9.0–0 Nd7 10.d4 Bd6 11.Bc1 Ngf6 12.Bd3 Rc8 13.f4 Qc7 14.Nd2 Bf4 15.Nf3 Bd6 16.Bd2 0–0 17.Re1 e5 18.Ne5 Ne5 19.de5 Be5 20.Bf5 Rce8 21.Qf3 g6 22.Bh6 b5?? 23.Bf8=+ Kf8 24.Rac1? gf5–+ 25.Re5? Qe5 26.Kf1 Ne4 27.Kg1 Rc8 0–1. mpopp (1910) – mrrook (2490), net–chess.com, 2009.

4.c3 f5 5.Nf3 Bf3 6.ef3 e6 7.Be2 b6 8.d4 Bd6= 9.Nd2 Nf6 10.0–0 0–0 11.a4 c5 12.dc5 bc5 13.bc5 Bc5 14.Ba3 Ba3 15.Ra3 Nc6 16.Re1 Qc7 17.Nb3 Qd6 18.Ra1 Rab8 19.Nd4 Nd4 20.cd4 Rfc8 21.Rb1 Rb1 22.Qb1 Rb8 23.Qd3 Qb4 24.Qa6?? Qe1–+ 25.Kh2 Re8 26.Qd3 Qb4 27.Qb5 Qb5 28.ab5 Rb8 29.Kg3 Ne8 30.Kf4 Kf7 31.g4 fg4 32.fg4 Nd6 0–1. mpopp (1910) – enco (2120), net–chess.com, 2009.

4.d3 c6 5.Nd2= Nd7 6.Ngf3 (6.g4 Bg6 7.Bg2 e5 8.a3 Bd6 9.c4 Ne7 10.Ngf3 0–0 11.Nh4 a5 12.b5 Nc5) 6...e6 (6...f6 7.e4 e5 8.c3 a5 9.b5 Bd6 10.Be2 Ne7 11.c4 0–0 12.0–0 Bg6; 6...Bf3 7.Nf3 a5 8.a3 e6 9.Bc3 ab4 10.ab4 Ngf6 11.Ra8 Qa8 12.e3 Qa3; 6...a5 7.g4 Bg6 8.ba5 Qa5 9.Bg2 f6 10.g5 e6 11.e3 Bd6 12.h4 Bh5; 6...Qc7 7.g4 Bg6 8.c4 e5 9.cd5 cd5 10.Rc1 Qd6 11.Qa4 f6 12.a3 Ne7) 7.e3 (7.a3 Bf3 8.Nf3 Ngf6= (8...a5 9.Bc3 ab4 10.ab4 Ngf6 11.Ra8 Qa8 12.e3 Qa3) 9.c4 a5 10.c5 ab4 11.ab4 b6 12.Ra8 Qa8; 7.g4 Bg6 8.Bg2 Ngf6 9.a3 a5 10.Bc3 ab4 11.ab4 Ra1 12.Qa1 h6) 7...Ngf6 (7...Bb4?? 8.Bg7 Bf3 9.gf3+–; 7...Bf3 8.Qf3 Ngf6 9.a3 a5 10.Qf4 Be7 11.Be2 ab4 12.ab4 Ra1) 8.a3 Qc7 (8...Bf3 9.Nf3 (9.Qf3 a5 10.Qf4 ab4 11.ab4 Ra1 12.Ba1 Qe7) 9...a5 10.Bc3= Bd6 11.Be2 ab4 12.ab4 Ra1; 8...Bd6 9.c4 0–0 10.Be2 Bf3 11.Nf3 c5 12.bc5 Nc5) 9.c4 h6 (9...a5 10.c5= Be7 11.g4 Bg6 12.h4 h6; 9...Bd6 10.Be2 e5 11.g4 Bg6 12.g5 Ng8) 10.Rc1 (10.Be2 a5 11.c5 b6 12.cb6 Qb6) 10...Be7 (10...Bd6 11.Be2 0–0 12.cd5 ed5) 11.Be2 (11.cd5 ed5 12.Be2 0–0) 11...Bg6 (11...0–0 12.0–0 Rfd8) 12.Qb3 (12.cd5 ed5) 12...0–0 13.g4 (13.cd5 ed5 14.Qc2 Rfe8=) 13...Rfd8 (13...a5 14.b5=) 14.cd5 ed5 15.Nd4 (15.Rg1 a5=) 15...Ne8 (15...a5 16.b5 c5 17.Nf5 Bf5 18.gf5+=) 16.h4 Rac8 (16...a5 17.b5 a4 18.Qa2+=) 17.f4 (17.g5 h5+=) 17...Nd6 (17...Qd6 18.f5 Bh7 19.Kd1=) 18.N2f3 (18.g5 Qb6+=) 18...Re8 19.Kf2 (19.Ne5 Bf6 20.Ng6 fg6=) 19...Bf8 (19...Qd8 20.Ke1=) 20.Rhg1 (20.h5 Bh7=) 20...Nb6 (20...Qd8 21.h5 Bh7 22.g5=) 21.h5+= Bh7 22.g5 hg5 23.Rg5 Be7?? (better is 23...f6 24.Rg3 Rcd8+=) 24.Rg7!!+– Kg7 (24...Kf8 25.Rh7 Bd8+–) 25.Ne6 Kg8 26.Rg1 Bg6 27.Nc7 Rc7 28.Qc3 f6 29.Rg6 Kf7 30.Ng5! Kf8 31.Ne6 Kf7 32.Nc7 Nb5 33.Rf6 (33.Rf6 Bf6 34.Qf6 Kg8 35.Qg7#) 1–0. Novikov,Konstantin – Krivobokov,Aleksey, Ch Chess Club (open), 2002.

4.d4 Nd7 5.Nd2 e6 6.a3 c6 7.c4 Ngf6 8.Qb3 Bd6 9.e3 0–0 10.c5 Bc7 11.Rc1 Ne4 12.Ngf3 f5 13.Be2 Nd2 14.Nd2 Be2 15.Ke2 e5 16.de5 Be5 17.Nf3 Bb2 18.Qb2 f4 19.Rc3 Qf6 20.Qd2 Rae8 21.Re1 Ne5 22.Ne5 Re5 23.Kf1 (23.Kd1!? Rfe8 24.Kc1–/+) 23...f3–+ 24.e4 de4 (24...Re4?! 25.Rf3 Qe5 26.Rfe3=) 25.gf3 ef3 26.Re5 (26.Ree3 Re3 27.Re3 Qg6–+) 26...Qe5 27.Qe3 Qf5 28.h4 Qh3 29.Ke1 Qh4 30.Qe6 Kh8 31.Rd3 h6 32.Rd7 Qg5 33.Qe3 Qe3 34.fe3 g5 35.a4?! (35.Rb7 f2 36.Kf1–+) 35...g4 36.Rd4 h5 37.b5 g3 (37...g3 38.Kf1 Rf5–+) 0–1. Estevez,Eric (1860) – Gaudineau,Gilles (2120), Provence–ch Majeur op, 1999.

4.f3 e6–/+ 5.d4 Bb4 (5...Bb4 6.Kf2 Bd6–+) 0–1. alctay (1700) – justenest, net–chess.com, 2009.

4.Nf3 a5 5.ba5 Nc6 6.e3 Ra5 7.g4 Bg6 8.Bc3 Ra8 9.Bb5 f6 10.Nd4 Qd7 11.f4 e6 12.Nc6 bc6 13.Be2 Bd6 14.d3 c5 15.Bf3 Ne7 16.Qe2 0–0 17.h4 Rfb8 18.h5 Be8 19.h6 g5 20.Bf6 gf4 21.Kd1 Ng6 22.g5 fe3 23.Qe3 Qf7 24.Nd2 Bc6 25.Rf1 e5 26.Bh5 Qe6 27.Bg6 hg6 28.Qe2 Kh7 29.Nb3 e4 30.Bg7 d4 31.Rf6 Qd5 32.de4 Qg5 33.Nd2 Bb5 34.Qf2 Qg4 35.Kc1 c4 36.Qf3 Qg1 37.Nf1 Qg5 38.Kd1 Bc6 39.Rf7 Be8 40.Bf6 Bf7 41.Bg5 1–0. PostModernist – AnatKarp, ICS, 2000.

4.Nf3 c6 5.e3 e6 6.c4 Nf6 7.b5 Be7 8.Qb3 Bf3 9.gf3 Nbd7 10.d4 0–0 11.Nd2 c5 12.e4 cd4 13.Bd4 e5 14.Bb2 Nc5 15.Qc2 d4 16.a4 Nh5 17.Nb3 Nb3 18.Qb3 Qa5 19.Kd1 Bg5 20.Bc1 Bc1 21.Rc1 Rac8 22.Rg1 Rc5 23.Kc2 Nf4 24.Rg3 Rd8 25.Bd3 Rd6 26.Rcg1 g6 27.h4 Rf6 28.Rh1 h5 29.Rhg1 Kg7 30.Rd1 Ne6 31.Qa3 Rf4 32.Rh3 Qd8 33.Rdh1 Kh7 34.a5 a6 35.b6 Qd7 36.Kd2 f5 37.Rg3 Qf7 38.ef5 gf5 39.Rhg1 e4 40.Rg7 Ng7 41.Qc5 Ne6 42.Qe5 ed3 43.Re1 Qe7 44.Qc7 Qc7 45.bc7 Nc7 46.Re7 Kg8 47.Rc7 Rf3 48.Rb7 Rf2 49.Kd3 Ra2 50.Kd4 Ra5 51.c5 Ra1 52.c6 Rc1 53.Kd5 f4 54.c7 f3 55.Rb8 Kg7 56.c8Q Rc8 57.Rc8 f2 58.Rc1 De Visser,Arno – Hoogeterp, 1985.

4.Nf3 g6?? 5.Bh8+– Nc6 (5...Bf3 6.ef3 e6+–) 6.g4 f6 (6...Nb4 7.gh5 e6 8.hg6 hg6 9.Nc3+–) 7.gh5 e5 8.b5 (8.hg6 hg6 9.b5 Nce7+–) 8...Nd4 (8...Nce7 9.Nc3+–) 9.Nd4 gh5 (9...ed4 10.hg6 hg6 11.Rg1+–) 10.e3 ed4 11.Qh5 Kd7 12.Qd5 Kc8 13.Qg8 b6 14.Bg2 1–0. pierred (2755) – alctay (1700), net–chess.com, 2009.

4.g3 Nc6 5.b5 Nd4?? 6.Bd4+– Nf6 7.Nc3 e6 8.Nf3 Bb4 9.g4 Bg6 10.Ne5 Be4 11.f3 Bg6 12.h4 Qd6 13.h5 (13...Bc5 14.e3 (14.hg6?! Bd4 15.gf7 Ke7+–) 14...Bd4 15.ed4 (15.Ng6?! Qg3 16.Ke2 hg6 17.ed4 Qf4+/–) 15...Nh5 16.gh5+– (16.Rh5?! Bh5 17.gh5 Qb4+–); 13.Ng6?! hg6 14.Na4 e5+–) 1–0. miehnekort – pierre8388, Yahoo, 2005.

4.g3 Nd7 5.Bg2 c6 6.Nf3 Qc7 7.0–0 Ngf6 8.a3 e5 9.d3 Bd6 10.Nbd2 0–0 11.c4 b6 12.cd5 cd5 13.Rc1 Qd8 14.Qb3 Rc8 15.Rc8+/– Qc8 16.Rc1 Qb7= 17.Qa4 b5 18.Qb3 Re8 19.Qa2 Nb6=+ 20.Nb3 e4 21.de4 Ne4 22.Qa1 f6 23.Nfd4 Nc4 24.Nf5 Be5 25.Be5 Re5 26.Nc5 Nc5–/+ 27.bc5 Rf5–+ (28.g4 Re5 29.gh5 Re2–/+) 0–1. hooks – willow27, ChessWorld.net, 2005.

4.g3 e5 5.a3 Nd7 6.Bg2 Ngf6 7.Nf3 Bf3 8.Bf3 Be7 9.0–0 c5 10.d3 Qc7 11.Nd2 c4 12.e4? (12.dc4 dc4 13.c3 0–0=) 12...Rc8 (better is 12...c3 13.Bc3 Qc3 14.ed5 Rc8–/+) 13.Bg2?? (13.c3 de4 14.Ne4 Rd8=) 13...b5?? (13...c3 14.Bc3 Qc3 15.ed5 Qc2 16.d4 ed4 17.Nb3–+) 14.d4? (14.dc4 bc4 A) worse is 15.ed5 c3 16.Bc1 cd2 17.Bd2 Nb6–+ (17...Qc2? 18.Rc1 Qc1 19.Bc1+–); B) 15.c3 Ne4 16.Ne4 de4 17.Be4=) 14...Nb6?? (better is 14...c3 15.Bc3 Qc3 16.de5 Ne4 17.Ne4 de4 18.Be4 Rb8–+) 15.Nc4?? (better is 15.de5 c3 16.Bc3 Qc3 17.ef6 Bf6 18.Qe2+/–) 15...de4 (better is 15...Nc4 16.de5 Nb2–+) 16.Qb1 ½–½. VELEROFONTIS – Aazmandius, playchess.de, 2002.

4.d3 Nd7

5.Nd2 e5 6.a3 a5 7.b5 Ngf6 (7...Bd6 8.g4 Bg6 9.Bg2=+) 8.g4= Bg6 9.e3 (9.Bg2 h6=) 9...Bd6=+ 10.Ne2 Nc5 11.Bg2 Na4 (11...Bd3 12.cd3 Nd3 13.Kf1 Nb2 14.Qc2=) 12.Bc1=+ c6 13.bc6 bc6 14.0–0 0–0 15.f4 ef4 16.ef4 Qe7 17.Nf3 Rfe8 (17...Rae8 18.Re1 Qa7 19.Kh1=+) 18.Re1 Qa7 19.Kh1 Qf2 (19...h5 20.g5 Nd7=) 20.Neg1?? (better is 20.f5 Nh5 A) 21.fg6 Re2 22.gh7 Kh7 23.Re2 Ng3 24.Kh2 Ne2 (24...Qe2?! 25.Qe2 Ne2 26.Kh1–/+) 25.Kh1 Re8–+ (25...Nc1?! 26.Qc1 Nc3 27.Qf1 Qf1 28.Bf1–/+); B) 21.gh5 Bh5 22.Neg1 Re1 23.Qe1 Qc2 24.Nd4 Qd3 25.Nc6 Qf5 26.Qe7+/– (< 26.Na5 Qe5 27.Qe5 Be5–/+)) 20...Re1 (20...h5 21.g5 Nd7 22.Qd2=+) 21.Qe1 Qc2 22.f5 Qd3 (22...Nc5!? 23.Qe2 Qe2 24.Ne2 Bf5 25.gf5 Nd3=+) 23.fg6= hg6 24.Bf1 Qb3 25.Qe3 Qb7 26.Bd3 Re8 27.Qd4 Nc5 28.Rb1 Qd7 29.Bc2 Nce4 30.Be4 Ne4 31.Bb2= f6 32.Kg2 Bc5 33.Qd3 Qd6 34.Nd2 Ng5 35.Qg6+= Re3 36.Nf1 Ne6? 37.Qe8+– Kh7 38.Qh5?? Kg8+= 39.Qe8 Kh7+– 40.Qh5?? Kg8+= 41.Qf5 Nf4 42.Kh1 Re8 43.Bc1 Ne6 44.Qg6 Rb8 45.Rb8 Qb8 46.h4 Qe5+= 47.Qd3 Qe1=+ 48.Qe2 Qh4 49.Kg2 Kf7 50.a4 Ng5 51.Bd2= Ne4 52.Ba5 Nf2 53.Nh2+= Bd6 54.Qf2 Qh2 55.Kf1 Qe5 56.Be1 Qa1 57.a5 Bb4 58.Qa7 Kg6 59.Nf3 c5 60.Qd7 Qa5 61.Nh4 (61...Kh6 62.Qd5 Qb5 63.Kg1+/–; 61.Qf5 Kf7 62.Ng5 Ke7 63.Qe6 Kd8 64.Nf7 Kc7 65.Bg3 Kb7 66.Nd6 Kb6 67.Nc4 Kb5 68.Na5 Ba5 69.Qd5 Bc3+–) 1–0. Rewitz,Poul (2260) – Berg,Klaus (2390), Aarhus int, 1989.

5.Nd2 e5 6.a3 Bd6 7.c4 c6 8.Ngf3 f6 9.e3 Ne7 10.Be2 Bf7 11.0–0 0–0 12.Bc3 Ng6 13.a4 Qe7 14.b5 f5 15.bc6 bc6 16.cd5 cd5 17.Re1 Rfe8 18.Ba5 e4 19.Nd4 Qg5 20.Nf1 Nf6 21.f4 (21.Nb5!? Nh4 22.g3=) 21...Bf4–/+ 22.ef4 Nf4 23.g3 Nh3 24.Kg2 Nf4 25.Kf2 (25.Kg1 Ne2 26.Qe2 f4–/+) 25...Ne2 26.Ne2 d4 27.de4? (better is 27.Kg1!?–/+) 27...fe4–+ 28.Bb4 Rec8?? (28...Rad8!? 29.Nd4 e3 30.Kg1–+) 29.Rb1? (29.Qd4 Rc4 30.Qd6 e3 31.Kg1–/+) 29...Rc4–/+ 30.Ba3 Rd8 31.Rc1? e3 32.Kg1 d3 33.Rc4 Bc4 34.Qc1 Ba6 35.Qe3 Qe3 36.Ne3 d2 37.Ra1 Be2 38.Nd1 Ne4 39.Bb4 Rd3 40.Kh2 h5 41.a5 a6 0–1. Ungureanu,S (2055) – Cabrilo,G (2475), Arad ROM, Romania Open, 2012.

5.Nd2 e5 6.a3 Ngf6 7.Qc1 Bd6 8.c4 c6 9.c5 Bc7 10.Ngf3 0–0 11.g4 Bg6 Black prepares e4 12.Nh4 e4 13.Ng6 hg6 14.d4 (better is 14.de4!? de4 15.Bg2+=) 14...e3–/+ 15.fe3 Re8 16.Qc3 Bg3 (16...Bg3 17.Kd1 Bf2–/+) 0–1. Sapareva,Magdalena – Todorov,Ml (2095), 30th Teteven Open, 2015.

5.g4 Bg6 6.Bg2 =.

4.Nf3 f6

5.a3 e5 =.

5.c4 dc4 6.e4 =+.

5.c4 Bf3 6.ef3= d4 7.d3 e5=+ 8.Be2 Bb4–/+ 9.Nd2 Nc6 10.0–0 Bd2 11.Qd2 g5 12.Rab1 b6 13.g3 Nge7 14.f4 gf4 15.gf4 Ng6 16.Bh5 Qd7 17.Kh2 0–0–0 18.fe5 fe5?? 19.Bg4+– Nf4 20.Bd7 Rd7 21.Rg1 Ne7 22.Rg7 c5 23.Rbg1 Neg6 24.Rd7 Kd7 25.a4 a5 26.Qe1 Re8 27.Bc1 Nd3 28.Qe2 Nc1 29.Rc1 e4 30.Re1 (30...Ne5 31.Qe4 Nf3 32.Qf3 Re1 33.Qb7 Ke8 34.Qb6+–) 1–0. Istvanny (1670) – thotares (1655), internet, 2007.

5.d4 e5=+ 6.de5 Bb4 7.c3 Bc5 8.Qb3 Bb6 9.c4 dc4 10.Qc4 Nc6 11.Nbd2 Qe7 12.e3 Bf3 13.ef6 Nf6 14.Nf3 Ba5 15.Bc3= 0–0–0 16.Ba5 Na5 17.Qc3 Rd5 18.Be2 Ne4 19.Qb2 Rhd8 20.0–0 Kb8 21.Rfc1+= c5 22.Rab1 b6 23.Qb5 Nb7 24.Qa4 Nbd6 25.Qb3 Nf5 26.Rb2 Nf2 (27.Kf2 Rd3–/+) 0–1. Vornanen,Alpo – Huuskonen,Matti, VI OpSM corr/Ks97, 1997.

4.a3 Nc6

5.b5 A) 5...Nb8 A1) 6.Nf3 Nd7 7.e3 e6 8.Be2 Ngf6 9.d3 Bd6=+; A2) 6.g3 c6 7.bc6 Nc6 8.Bg2 e5 9.Nf3 Qb6=+; A3) 6.g4 Bg6 7.h4 h5 8.g5 a6 9.ba6 Na6=; B) 5...Na5 B1) 6.d3 Qd7 7.a4 a6 8.Na3 ab5 9.ab5 e5=+; B2) 6.Nf3 e6 7.e3 Nf6 8.Bc3 c5 9.bc6 Nc6=+; B3) 6.Bd4 f6 7.Bc5 Qd7 8.Nc3 d4 9.Ne4 Qd5=+; B4) 6.g4 Nc4 7.Bd4 Bg6 8.d3 Nd6 9.a4 f6=+; B5) 6.Bc3 c5 7.g4 Bg6 8.Bg2 e6 9.d3 a6=+.

5.d3 A) 5...e5 A1) 6.b5 Nd4 7.g4 Bg6 8.e3 Nb5 9.Be5 c6=+; A2) 6.Nf3 Bf3 7.ef3 Qf6 8.c4 d4 9.Qa4 Nge7=+; A3) 6.g4 Bg6 7.Bg2 a6 8.Nd2 Qd6 9.c4 d4=; B) 5...e6 B1) 6.Nd2 f6 7.Ngf3 e5 8.c4 dc4 9.dc4 Nge7=; B2) 6.b5 Nce7 7.g4 Bg6 8.Bg2 Qd7 9.a4 f6=; B3) 6.Nf3 Bf3 7.gf3 Qh4 8.Rg1 Nf6 9.c4 dc4=+; B4) 6.g4 Bg6 7.Bg2 Nge7 8.Nf3 a5 9.b5 Na7=; C) 5...a5 6.b5 Na7 7.g4 Bg6 8.Bg2 e6 9.c4 dc4=; D) 5...f6 D1) 6.g4 Bf7 7.b5 Nb8 8.Bg2 c6 9.bc6 Nc6=+; D2) 6.Nd2 d4 7.b5 Nb8 8.g4 Bf7 9.Bg2 Bd5=; D3) 6.b5 Nb8 7.d4 c6 8.bc6 Nc6 9.Nf3 e6=+; D4) 6.Qd2 e5 7.e3 Bd6 8.Be2 Be2 9.Ne2 Qd7=; D5) 6.Nf3 Bf3 7.ef3 e5 8.Be2 Qd6 9.0–0 0–0–0=.

5.Nf3 a6 A) 6.e3 e6 7.d3 Nf6 8.Be2 Bd6 9.0–0 0–0=; B) 6.g4 Bg6 7.Bg2 e6 8.d3 f6 9.Nbd2 Bd6+=.

5.Nf3 e6 A) 6.e3 Nf6 7.Bb5 a6 8.Bc6 bc6 9.g4 Bg6=; B) 6.b5 Na5 7.e3 Nf6 8.Bc3 c5 9.g4 Bg6=; C) 6.g4 Bg6 7.e3 Nf6 8.Bb5 a6 9.Bc6 bc6=.

5.Nf3 f6 A) 6.b5 Na5 7.Bc3 c5 8.d4 e6 9.Nbd2 Qc7=; B) 6.e3 e5 7.Be2 e4 8.Nd4 Be2 9.Qe2 Qd7=; C) 6.g3 Bf3 7.ef3 e5 8.c4 Nge7 9.Nc3 Nd4=; D) 6.d4 Nh6 7.e3 e6 8.c4 Be7 9.cd5 ed5+=.

5.Nf3 Nf6 6.g4 Bg6 7.e3 Ne4 8.Bb5 a6 9.Bc6 bc6 10.d3 Nf6 11.Ne5 Rb8? 12.Nc6 1–0. NN – Fritz 6, 2003.

5.Nf3 Nh6 A) 6.g4 Bg6 7.Bg2 e6 8.d3 a5 9.b5 Na7=; B) 6.b5 Na5 7.e3 e6 8.Bd3 f6 9.g4 Bg6=; C) 6.g3 Bf3 7.ef3 Qd6 8.b5 Ne5 9.d4 Ng6=; D) 6.Rg1 Qd7 7.e3 0–0–0 8.Bb5 f6 9.g4 Be8=; E) 6.e3 Qd6 7.b5 Na5 8.g4 Bg6 9.Ne5 e6=.

5.g4 Bg6 A) 6.Nf3 e6 7.e3 f6 8.Bb5 Nge7 9.g5 e5=; B) 6.Bg2 f6 7.d3 e5 8.Nd2 Nge7 9.Ngf3 Qd6=; C) 6.d3 f6 7.Bg2 e5 8.Nd2 Nge7 9.Ngf3 Qd6=; D) 6.e3 e6 7.Nf3 f6 8.Bb5 Nge7 9.g5 fg5=.

4.a3 d4

5.d3 e5

6.c3 a5 A) 7.Qa4 c6 8.cd4 ed4 9.b5 c5 10.g4 Bg6 11.Bg2=; B) 7.g4 B1) 7...dc3 8.Nc3 ab4 9.ab4 Ra1 10.Qa1+= Bg6 11.Bg2=; B2) 7...ab4 8.gh5 bc3 9.Bc1 Nc6 10.Bg2 Qd7 11.Qb3+=; B3) 7...Bg6 8.Nd2 ab4 9.ab4 Ra1 10.Ba1 Nf6 11.Qa4=; C) 7.b5 C1) 7...Nf6 8.cd4 ed4 9.g4 Bg6 10.Bg2 c5 11.Bb7+=; C2) 7...Qd5 8.Qa4 Bc5 9.Nf3 Bf3 10.gf3 Nd7 11.Rg1+=; C3) 7...c5 8.g4 Bg6 9.Bg2 Qd7 10.Qa4 Nf6 11.Nf3+=; C4) 7...c6 8.g4 Bg6 9.Nf3 dc3 10.Nc3 Bd6 11.Ne4+=; C5) 7...Qd7 8.a4 Qd5 9.e4 Bd1 10.ed5 Bb3 11.cd4=; D) 7.Nd2 D1) 7...Nf6 8.g4 Bg6 9.Bg2 c6 10.Ngf3 ab4 11.ab4=; D2) 7...ab4 8.ab4 Ra1 9.Qa1 dc3 10.Bc3 f6 11.Be5=; D3) 7...Nc6 8.g4 ab4 9.ab4 Ra1 10.Qa1 Bg6 11.Bg2+=; D4) 7...Ne7 8.g4 Bg6 9.cd4 ab4 10.de5 Nd5 11.ab4+=; D5) 7...dc3 8.Bc3 ab4 9.ab4 Ra1 10.Qa1 f6 11.g4=; E) 7.ba5 Ra5 8.g4 Bg6 9.Bg2 c6 10.Nd2 Ra7 11.Qb3=; F) 7.cd4 ed4 8.Qa4 Qd7 9.Qd7 Nd7 10.g4 Bg6 11.b5+=.

6.c3 Nc6 A) 7.Qa4 a6 8.cd4 ed4 9.b5 ab5 10.Qb5 f5 11.Nd2=; B) 7.g4 Bg6 8.Bg2 Nge7 9.b5 dc3 10.Nc3 Nd4 11.Bb7+=.

6.c3 Qd6 A) 7.g4 dc3 8.Nc3 Bg6 9.Bg2 c6 10.Nf3 Nd7 11.Nh4+=; B) 7.Qa4 c6 8.cd4 ed4 9.g4 b5 10.Qb3 Bg6 11.Nf3+/–; C) 7.cd4 ed4 8.g4 Bg6 9.Nf3 a5 10.Qa4 c6 11.ba5+/–.

6.c3 Ne7 A) 7.cd4 ed4 8.Qa4 Nd7 9.g4 Bg6 10.Bg2 c6 11.Nf3+=; B) 7.g4 Bg6 8.Bg2 Nbc6 9.cd4 ed4 10.Nf3 Qd7 11.Qa4+/–.

6.c3 f5 A) 7.Nf3 A1) 7...Nc6 8.b5 Bf3 9.gf3 Nce7 10.cd4 ed4 11.Qc2=; A2) 7...dc3 8.Nc3 Bf3 9.gf3 Nf6 10.Bg2 c6 11.Qb3=; A3) 7...Bf3 8.gf3 a5 9.Qa4 c6 10.cd4 b5 11.Qb3=; B) 7.Qa4 c6 8.Nf3 Bf3 9.ef3 Nf6 10.Be2 a5 11.cd4=; C) 7.g3 C1) 7...a5 8.Bg2 c6 9.Nd2 Nf6 10.Ngf3 Bf3 11.Bf3=; C2) 7...c6 8.Nd2 Be7 9.Ngf3 Bf6 10.Bg2 Ne7 11.cd4+=; C3) 7...Qd5 8.Rh2 Qd6 9.Bg2 c6 10.Nd2 dc3 11.Bc3+=; C4) 7...Bf7 8.Nf3 Bd5 9.Bg2 Nc6 10.b5 Na5 11.Nbd2+=; C5) 7...Nf6 8.Bg2 c6 9.Nf3 Bf3 10.Bf3 a5 11.cd4=; D) 7.Nd2 D1) 7...Be7 8.g3 c6 9.Ngf3 Bf6 10.Bg2 Ne7 11.cd4+=; D2) 7...a6 8.g3 Ne7 9.Bg2 Nbc6 10.Ngf3 dc3 11.Bc3+=; D3) 7...Nc6 8.cd4 Nd4 9.Ngf3 a5 10.Ne5 ab4 11.g4+=; D4) 7...a5 8.Ngf3 Nd7 9.cd4 Bf3 10.gf3 ab4 11.ab4+=; D5) 7...dc3 8.Bc3 Bd6 9.Nc4 Nd7 10.g4 fg4 11.Bg2=; E) 7.cd4 ed4 8.Qd2 c5 9.e3 Nf6 10.Be2 Bg6 11.b5=.

6.c3 f6 A) 7.cd4 ed4 8.Nd2 a5 9.Qa4 c6 10.b5 c5 11.e3=; B) 7.Nf3 B1) 7...Bf3 8.gf3 a5 9.cd4 ed4 10.Qa4 Qd7 11.b5=; B2) 7...a5 8.b5 Bf3 9.gf3 c6 10.cd4 ed4 11.Qa4=; B3) 7...Nc6 8.b5 dc3 9.Nc3 Nd4 10.Nd4 ed4 11.Ne4=; B4) 7...dc3 8.Nc3 c5 9.b5 a6 10.g4 Bf7 11.Qa4=; B5) 7...c5 8.Qa4 Qd7 9.Qd7 Nd7 10.g4 Bf7 11.bc5=; C) 7.g3 C1) 7...a5 8.cd4 ed4 9.Qa4 Qd7 10.Qd7 Nd7 11.b5=; C2) 7...c6 8.Bg2 a5 9.cd4 ed4 10.Qa4 Nd7 11.b5=+; D) 7.Qa4 c6 8.cd4 ed4 9.Nd2 b5 10.Qc2 a5 11.g4=; E) 7.Nd2 E1) 7...Nc6 8.Ngf3 dc3 9.Bc3 Nge7 10.Bb2 a6 11.g3=; E2) 7...a5 8.b5 dc3 9.Bc3 Ne7 10.Nc4 a4 11.g4=; E3) 7...c5 8.g3 cb4 9.ab4 dc3 10.Bc3 Ne7 11.Qa4=; E4) 7...dc3 8.Bc3 Ne7 9.Ne4 Nd5 10.Bd2 Bf7 11.Nf3=; F) 7.g4 Bf7 8.Bg2 c6 9.Nf3 a5 10.b5 dc3 11.Nc3=.

6.c3 Nf6 7.g4 Bg6 8.Bg2 c6 9.cd4 ed4 10.Nf3 a5 11.Nbd2 ab4 12.ab4 Ra1 13.Qa1 Bb4 14.Bd4 0–0 15.Qb2 c5 16.Bf6 gf6 17.d4 Qa5 18.0–0 Bc3 19.Nc4 Bb2 20.Na5 cd4 21.Rd1 Nc6 22.Nb7 Re8 23.e3 de3 24.fe3 Re3 25.Nd6 Ne5 26.Nh4 h5 27.Nhf5 Rb3 28.Bd5 Rh3 29.Bg2 Rc3 30.gh5 Bh5 31.Rd2 Rc1 32.Kf2 Bg6 33.Bd5 Ba3 34.Be4 Bb4 35.Rd5 Kf8 36.Kg3 Rc3 37.Kg2 Bd6 38.Rd6 Bf5 39.Bf5 Rf3 40.Bg4 Rf4 41.Bc8 Kg7 42.Bb7 Rb4 43.Ba8 f5 44.Rd2 f6 45.Bd5 Kg6 46.Kf2 f4 47.Kg2 Kf5 48.Ra2 Kg4 49.Kh2 f3 50.Rf2? Rb1 51.Ra2 f5 52.Ra4 Kg5 53.Ra2 Ng4 54.Kg3 Rf1 55.Ra4 f4 56.Rf4 Rg1 57.Kf3 Rf1 58.Ke2 Rf4 59.Kd3 Rf1 60.Kd4 Rc1 61.Bf7 Kf4 62.Bc4 Ne3 63.Bf7 Nf5 64.Kd3 Rc7 65.Bb3 Ke5 66.Bc4 Ne3 67.Bb3 Nd5 68.Ba4 Rc3 69.Ke2 Ne3 70.Kf3 Ng4 71.Kg2 Kf4 72.Kf1 Ra3 73.Bb5 Ra2 74.Bd7 Nh2 75.Ke1 Nf3 (76.Kd1 Rd2 77.Kc1 Rd7–+) 0–1. Pierred (2165) – Tobi10 (2480), internet, 2005.

4.a3 e5

5.Be5+= a5 A) 6.g4 Bg6 7.Nf3 f6 8.Bb2 ab4 9.Bg2 Nc6=; B) 6.b5 Nf6 7.g4 Bg6 8.Nf3 Nbd7 9.Bb2 Bd6+=; C) 6.ba5 Nf6 7.Nf3 Bf3 8.ef3 Bd6 9.f4 0–0+=.

5.Be5+= c5 6.bc5 Nc6 7.Bd6 Bd6 8.cd6 f5 9.c3 Nf6 10.Qb3 Qd6 11.Qb7 0–0 12.d4?? Nd4–/+ 13.Qb2 Rab8–+ 14.Qa2 Nb3 15.Nd2 Na1 16.Qa1 Rfc8 17.e3 f4 18.ef4 Qf4 19.Ne2 Be2 (20.Be2 Ne4 21.Ne4 Qe4–+ (21...de4?! 22.c4–+)) 0–1. Ventimiglia,Chuck – Smith,Geoff, IECC, 1998.

5.Be5+= Nc6 A) 6.Bg3 Nf6 7.Nf3 Ne4 8.Bh2 Qf6 9.c3 Bd6+=; B) 6.Bc3 d4 7.Bb2 a5 8.b5 Ne5 9.Nf3 Nc4+=; C) 6.Bh2 a5 7.b5 Nd4 8.Nc3 Bd6 9.Nf3 Bh2=; D) 6.Bb2+= Nf6 7.Nf3 Bd6 8.e3 0–0 9.Be2 Qe7+=.

5.Be5+= Nd7 A) 6.Bg3 Ngf6 7.Nc3 a5 8.Nb5 Rc8 9.ba5 Ne4=; B) 6.Bd4 a5 7.Nc3 Ne7 8.Nf3 Nf5 9.g4 Nd4+=; C) 6.Bb2 Ngf6 7.Nc3 a5 8.g4 Bg6 9.Nf3 ab4+=; D) 6.Bc3 Ngf6 7.Nf3 Bd6 8.e3 a5 9.ba5 0–0+=; E) 6.Bh2 Ngf6 7.Nc3 c6 8.Nf3 Be7 9.Nd4 0–0+=.

5.Be5+= Qe7 A) 6.Bg3 Nc6 7.d4 Nf6 8.Nf3 0–0–0 9.e3 Bf3+=; B) 6.Bh2 Nc6 7.Nc3 0–0–0 8.g4 Bg6 9.Bg2 Nd4+=; C) 6.d4 Nc6 7.Bg3 Nf6 8.Nf3 Ne4 9.Bf4 g5+=; D) 6.Bc3 Nd7 7.Bd4 c6 8.d3 a5 9.Nd2 b6+=; E) 6.Bb2 Nd7 7.Bd4 c6 8.d3 a5 9.Nd2 b6+=.

5.g4 Bg6 A) 6.Be5 Be4 7.Rh2 Nc6 8.Bg3 Bd6 9.e3 Bg3= 10.fg3=; B) 6.Nf3 B1) 6...Be4 7.e3 Bd6 8.d3 Bf3 9.Qf3 c6 10.c4=; B2) 6...f6 B21) 7.d4 e4 8.Nh4 Bf7 9.c4 dc4= 10.Bg2=; B22) 7.e3 a5 8.b5 Nd7 9.d3 Bf7 10.c4=+; B23) 7.Nc3 d4 8.Na2 a5 9.Bg2 ab4 10.ab4=+; B24) 7.Rg1 c5 8.bc5 Bc5 9.d4 Qb6 10.Ra2=+; B25) 7.Bg2 a5 8.b5 Qd7 9.a4 Ne7 10.d3=; C) 6.d3 C1) 6...Bd6 C11) 7.c4 c6 8.cd5 cd5 9.Bg2 Nc6= 10.Bd5=; C12) 7.Nf3 Nd7 8.c4 c6 9.cd5 cd5 10.Nc3=; C13) 7.Nd2 Ne7 8.c4 c6 9.Bg2 0–0 10.Ngf3=; C14) 7.Bg2 c6 8.c4 d4 9.Nf3 a5 10.c5=; C2) 6...Nd7 7.Bg2 c6 8.Nf3 Bd6 9.c4 Ne7= 10.Nh4=; C3) 6...a5 C31) 7.b5 f6 8.Bg2 c6 9.Nc3 Bd6 10.e3=+; C32) 7.ba5 Nc6 8.Bg2 Ra5 9.c4 d4 10.Qb3=+; C33) 7.Nf3 e4 8.de4 de4 9.Qd8 Kd8 10.Ne5=; C4) 6...Nc6 7.Bg2 a6 8.Nd2 Nge7 9.Ngf3 f6= 10.0–0=; C5) 6...Qd6 7.Bg2 c6 8.Nd2 Be7 9.Ngf3 Nd7 10.c4=; C6) 6...f6 C61) 7.c3 c6 8.Bg2 a5 9.Nf3 Bd6 10.Nbd2=+; C62) 7.Nf3 a5 8.c3 Bd6 9.Nh4 Ne7 10.Ng6=+; C63) 7.Bg2 c6 8.Nf3 a5 9.Qd2 ab4 10.ab4=+; C64) 7.d4 e4 8.e3 Ne7 9.c4 a5 10.Nc3=; D) 6.Bg2 D1) 6...Nc6 7.c4 Nge7 8.cd5 Nd5 9.Nc3 Nc3= 10.Bc6=; D2) 6...Qd6 7.c4 Ne7 8.Nc3 c6 9.cd5 Nd5= 0.06 10.Nd5=; D3) 6...e4 D31) 7.h4 h6 8.h5 Bh7 9.d3 Nf6 10.de4=; D32) 7.d3 Nf6 8.Nd2 c5 9.de4 Ne4 10.Ne4=; D33) 7.Nc3 a5 8.b5 Qg5 9.e3 h5 10.h4=; D4) 6...f6 7.c4 Ne7 8.cd5 Nd5 9.Nc3 Nc3= 10.dc3=; D5) 6...a5 7.b5 D51) 7...f6 8.c4 Ne7 9.d4 e4= 10.Nc3=; D52) 7...e4 8.d3 Nd7 9.Nc3 Nc5 10.Qd2=.

4.a3 Nf6

5.d3 Nbd7 6.g4 Bg6 7.f4 h5 (better is 7...e6!?+=) 8.f5+= Bh7 9.g5 Ng8 10.e4 e6? (better is 10...h4!?+/–) 11.fe6+– Nb6?? (better is 11...fe6 12.Qh5 g6+–) 12.ef7 Kf7 13.Qh5 g6 (13...Ke7 14.g6 Nf6 15.Qe5 Kd7 16.Qf5 Ke8 17.gh7+–) 14.Qf3 Ke6 (14...Ke8 15.Bh8 Qg5 16.ed5+–) 15.Bh8 Qg5 16.Qg4 Qg4 17.hg4 (17.hg4 Nh6 18.g5+–) 1–0. roy1nc6 (1830) – jopius (1795), gameknot.com, 2012.

5.Nf3 e6

6.Nc3 A) 6...Bf3 A1) 7.ef3 a6 8.Rb1 Bd6 9.Bd3 Nbd7 10.Qe2 0–0=+; A2) 7.gf3 a5 8.Rg1 Nbd7 9.b5 Nb6 10.e3 Rg8=; B) 6...d4 B1) 7.Nb1 Bf3 8.gf3 a5 9.Rg1 Rg8 10.b5 Bc5=; B2) 7.Na4 Bf3 8.ef3 Be7 9.Qe2 a6 10.c3 0–0=+; B3) 7.Na2 Bf3 8.ef3 Be7 9.Nc1 0–0 10.Nb3 e5=; C) 6...Nbd7 C1) 7.e3 a5 8.b5 Bd6 9.Be2 0–0 10.0–0 e5=+; C2) 7.Rg1 Bf3 8.gf3 Rg8 9.e3 a5 10.ba5 Ra5=+; C3) 7.Rb1 a5 8.b5 Bf3 9.ef3 Nb6 10.Bd3 Bc5=+; C4) 7.g4 Bg6 8.Rg1 c5 9.g5 Ne4 10.Ne4 de4=+; D) 6...Be7 D1) 7.e3 a5 8.ba5 0–0 9.g4 Bg6 10.Ne5 Ra5=+; D2) 7.Rg1 a5 8.g4 Bg6 9.g5 Nfd7 10.b5 Bh5=+; D3) 7.Ne5 Nbd7 8.Nd3 a5 9.b5 d4 10.Na4 e5=+; D4) 7.g4 Bg6 8.Bg2 a5 9.b5 0–0 10.Ne5 Be4=; E) 6...a6 E1) 7.e3 Bd6 8.Be2 Nbd7 9.0–0 0–0 10.Nd4 Be2=+; E2) 7.g4 Bg6 8.Ne5 Bd6 9.Ng6 hg6 10.Bg2 Nbd7=; F) 6...a5=+ F1) 7.b5 Bf3 8.ef3 Bc5 9.Be2 0–0 10.Na4 Bd6=+; F2) 7.g4 ab4 8.ab4 Ra1 9.Qa1 Bg6 10.g5 Nfd7=+; G) 6...c6 G1) 7.e3 Nbd7 8.Be2 Bd6 9.b5 0–0 10.0–0 e5=+; G2) 7.Rg1 Bd6 8.g4 Bg6 9.h4 h5 10.g5 Nfd7=+; G3) 7.Rb1 Bf3 8.ef3 Bd6 9.b5 0–0 10.bc6 Nc6=+; G4) 7.Rc1 Bd6 8.e3 0–0 9.d3 b5 10.g4 Bg6–/+; G5) 7.g4 Bg6 8.g5 Ne4 9.Rg1 Nd7 10.Ne4 de4=+; H) 6...Bd6 H1) 7.Nb5 Bf3 8.ef3 Bf4 9.g3 a6 10.gf4 ab5=+; H2) 7.e3 c6 8.Be2 0–0 9.0–0 b5 10.d3 a5=+; H3) 7.g4 Bg6 8.Nb5 Be7 9.g5 Nh5 10.Be5 Na6=; I) 6...c5 I1) 7.bc5 Bf3 8.ef3 Bc5 9.Qe2 0–0 10.Qb5 b6=+; I2) 7.g4 Bg6 8.g5 Nh5 9.bc5 Bc5 10.Rb1 0–0=+.

6.d3 c5 7.bc5 Bc5 8.e3 0–0 9.Nbd2 Nbd7 10.g4 Bg6 11.Ne5 Ne5 12.Be5 Nd7 13.Bg3 f6 14.Bg2 Qe7 15.a4 Bb4–/+ 16.0–0 Bc3 17.Rb1 Nb6 18.a5 Ba5 19.Rb5 Bb4–+ 0–1. playwaycool – mrkt, ChessWorld.net, 2006.

6.d3 Bf3 A) 7.ef3 d4 8.Be2 c5 9.bc5 Bc5 10.0–0 0–0=+; B) 7.gf3 a5 8.b5 c6 9.c4 cb5 10.cb5 Nbd7=+.

6.e3 a5 7.b5 Nbd7 8.Bd3 c5 9.Be2 Bd6 10.0–0 0–0 =+.

6.e3 Bd6 A) 7.Be2 0–0 8.Nc3 a5 9.Nb5 Bf3 10.Bf3 Be7=+; B) 7.Nc3 a6 8.Bd3 Nbd7 9.g4 Bg6 10.Bg6 hg6=+; C) 7.Bd3 0–0 8.0–0 Nbd7 9.Be2 a5 10.b5 Nb6=+; D) 7.Bb5 c6 8.Be2 Bf3 9.Bf3 a5 10.b5 cb5=+; E) 7.g4 Bg6 8.g5 Nh5 9.Nc3 Nd7 10.Be2 h6=.

6.Rg1 A) 6...a5 A1) 7.b5 Bc5 8.e3 0–0 9.g4 Bg6 10.h4 Nfd7=; A2) 7.ba5 Ra5 8.g4 Bg6 9.g5 Ne4 10.d3 Nc5=+; A3) 7.g4 Bg6 8.g5 Nh5 9.ba5 Ra5 10.e3 Nc6=; B) 6...Bd6 7.g4 Bg6 8.g5 Nh5 9.e3 a5 10.Be2 h6+=; C) 6...Bf3 7.gf3 Nbd7 8.e3 Rg8 9.Nc3 a5 10.ba5 Ra5=+.

6.g4 Bg6 A) 7.Ne5 c5 8.e3 Qb6 9.Ng6 hg6 10.g5 Ne4=+; B) 7.Nc3 Be7 8.Bg2 c5 9.bc5 Bc5 10.g5 Ne4=+; C) 7.e3 a5 8.ba5 Nbd7 9.a6 ba6 10.Nc3 Bd6=+; D) 7.Rg1 c5 8.g5 Nh5 9.Rg4 Bd6 10.Nh4 cb4=+; E) 7.d3 c5 8.Qd2 Na6 9.b5 Nc7 10.c4 dc4=+.

6.e3 Nbd7

7.Bb5 A) 7...a5 A1) 8.ba5 Ra5 9.Bd7 Nd7 10.0–0 f6 11.d3 Bd6=+; A2) 8.Bd7 Qd7 (8...Nd7 9.b5 c6 10.a4 Rc8 11.0–0 f6=+; 8...Kd7 9.ba5 Ra5 10.0–0 Bd6 11.d3 Qe7=+) 9.Bf6 gf6 10.ba5 Ra5 11.Rg1 Bd6=+; A3) 8.g4 Bg6 9.g5 Nh5 10.ba5 Ra5 11.Be2 Rc5=+; B) 7...Bd6 8.g4 Bg6 9.g5 Nh5 10.Rg1 a5 11.ba5 0–0=; C) 7...c6 C1) 8.Be2 a5 (8...Bf3 9.Bf3 a5 10.ba5 Ra5 11.0–0 Bd6=+; 8...Bd6 9.g4 Bg6 10.g5 Nh5 11.Rg1 h6=; 8...Nb6 9.g4 Bg6 10.Ne5 a5 11.g5 Nfd7=; 8...Qb6 9.Ra2 Bf3 10.Bf3 a5 11.ba5 Qa5=+) 9.ba5 Ra5 10.Bc3 Ra8 11.d3 Bf3=+; C2) 8.Bd3 c5 (8...a5 9.b5 e5 10.g4 e4 11.gh5 ed3=+; 8...Bf3 9.Qf3 Bd6 10.Be2 a5 11.b5 Rc8=+; 8...e5 9.g4 e4 10.gh5 ed3 11.cd3 a5=+) 9.bc5 Rc8 10.Ra2 Bc5 11.g4 Bg6=+; D) 7...Bf3 D1) 8.Bd7 Qd7 (8...Nd7 9.Qf3 a5 10.b5 c6 11.Qe2 Rc8=) 9.Qf3 Be7 10.0–0 a5 11.Nc3 ab4=; D2) 8.Qf3 c6 (8...a5 9.Bd7 Nd7 10.b5 Qg5 11.d3 Bd6=) 9.Be2 Bd6 10.0–0 a5 11.b5 0–0=; E) 7...a6 E1) 8.Be2 c5 (8...Bd6 9.g4 Bg6 10.g5 Ne4 11.Bg7 Rg8+=) 9.bc5 Bc5 10.g4 Bg6 11.Nc3 0–0=+; E2) 8.Bd3 c5 (8...a5 9.b5 c5 10.Be2 Bd6 11.0–0 0–0=+; 8...e5 9.g4 e4 10.gh5 ed3 11.cd3 Nh5=; 8...Bf3 9.Qf3 Bd6 10.Be2 0–0 11.0–0 b5=; 8...Bg6 9.Bg6 hg6 10.d3 c5 11.bc5 Bc5=) 9.bc5 Nc5 10.Be2 Bd6 11.Nc3 0–0=+; E3) 8.Bf1 Bd6 (8...c5 9.bc5 Bc5 10.Be2 0–0 11.Nc3 b5=+) 9.Be2 0–0 10.Nc3 b5 11.Rg1 c5–/+; E4) 8.Bd7 Nd7 (8...Kd7 9.d3 Kc8 10.Nbd2 Be7 11.g4 Bg6=; 8...Qd7 9.d3 a5 10.g4 Bg6 11.Ne5 Qd8=) 9.0–0 a5 10.b5 c6 11.a4 Rc8=+.

7.Bc3 A) 7...a5 A1) 8.ba5 Be7 (8...Bd6 9.g4 Bg6 10.g5 Nh5 11.Bb5 c6=+; 8...Ne4 9.Bb2 Ra5 10.Be2 Be7 11.d3 Bf6=+) 9.g4 Bg6 10.h4 Ng4 11.a6 ba6=+; A2) 8.b5 Bd6 9.g4 Bg6 10.g5 Nh5 11.Rg1 0–0=; B) 7...Bd6 B1) 8.Be2 a5 (8...e5 9.0–0 0–0 10.d3 Qe7 11.Nbd2 Nb6=+; 8...0–0 9.0–0 e5 10.d3 Qe7 11.Nbd2 b5=+; 8...Bf3 9.Bf3 0–0 10.0–0 c5 11.bc5 Nc5=+; 8...a6 9.g4 Bg6 10.g5 Ne4 11.Bg7 Rg8+=) 9.b5 0–0 10.0–0 c6 11.bc6 bc6=+; B2) 8.Bb5 a5 (8...0–0 9.0–0 c6 10.Be2 Bf3 11.Bf3 Qc7=+; 8...Ne4 9.Bb2 Bf3 10.Bd7 Qd7 11.gf3 Nf6=; 8...a6 9.Bd7 Qd7 10.Bf6 gf6 11.Nc3 f5=+; 8...e5 9.g4 c6 10.Bc6 bc6 11.gh5 a5=) 9.g4 Bg6 10.g5 ab4 11.ab4 Ra1=+; B3) 8.d3 c6 (8...e5 9.Nbd2 0–0 10.Be2 c6 11.0–0 Qe7=+; 8...a5 9.ba5 0–0 10.Be2 Nc5 11.Bb4 Re8=+; 8...0–0 9.Be2 e5 10.0–0 Re8 11.Nbd2 Rc8=+; 8...a6 9.g4 Bg6 10.g5 Nh5 11.Be2 a5=) 9.g4 Bg6 10.h4 Ng4 11.Bg7 Rg8=+; B4) 8.Qe2 e5 (8...0–0 9.g4 Bg6 10.d3 a5 11.ba5 Nc5=+) 9.g4 Bg6 10.g5 Ne4 11.Qb5 a5=+; B5) 8.g4 Bg6 9.g5 Nh5 10.Be2 a5 11.ba5 h6=; C) 7...Bf3 8.Qf3 e5 (8...a5 9.ba5 Ne4 10.Bb2 Ra5 11.Be2 Qg5=; 8...Bd6 9.Be2 0–0 10.0–0 Ne4 11.Bb2 a5=; 8...c6 9.Be2 Bd6 10.0–0 Qc7 11.d4 Ne4=; 8...Ne4 9.Bb2 a5 10.b5 Qg5 11.c4 Bd6=) 9.Be2 Bd6 10.d3 e4 11.de4 Ne5–/+.

7.Nc3 A) 7...Ne5 A1) 8.Be2 Bf3 (8...Nf3 9.Bf3 Bf3 10.Qf3 a5 11.b5 Bd6=) 9.gf3 a5 10.Rg1 Ng6 11.b5 Bd6=+; A2) 8.Bb5 Nfd7 (8...c6 9.Be2 Bf3 10.gf3 Bd6 11.f4 Ng6=+) 9.Bd7 Nd7 10.e4 Ne5 11.g4 Nc4=+; A3) 8.Rg1 c6 (8...a5 9.b5 Bd6 10.g4 Nf3 11.Qf3 Bg6=+; 8...Be7 9.g4 Nf3 10.Qf3 Bg6 11.d3 a5=; 8...a6 9.g4 Nf3 10.Qf3 Bg6 11.d3 Bd6=; 8...Nf3 9.gf3 a5 10.ba5 Ra5 11.Nb5 c6=+) 9.Na4 Nfd7 10.g4 Nf3 11.Qf3 Bg6=+; A4) 8.g4 Nf3 9.Qf3 Bg6 10.d3 c5 11.bc5 Bc5=; B) 7...Be7 B1) 8.Be2 Nb6 (8...a5 9.g4 Bg6 10.b5 Ne4 11.d3 Nc3=; 8...c5 9.bc5 Bf3 10.Bf3 Nc5 11.Rb1 0–0=; 8...0–0 9.0–0 a5 10.b5 Bf3 11.Bf3 Ne5=) 9.g4 Bg6 10.Ne5 a5 11.b5 d4=; B2) 8.g4 Bg6 9.Nh4 Be4 10.Ng2 0–0 11.f3 Bg6=; C) 7...Bd6 8.g4 (8.Nb5 Be7 9.g4 Bg6 10.Ne5 c6 11.Ng6 hg6=+) 8...Bg6 9.Nb5 Be7 10.Ne5 c6 11.Ng6 hg6=+; D) 7...a5 D1) 8.ba5 Ra5 9.Be2 Bc5 10.g4 Bg6 11.Nh4 Be4=+; D2) 8.g4 Bg6 (8...ab4 9.ab4 Ra1 10.Qa1 Bg6 11.Qa4 Be7=) 9.ba5 Ra5 10.Nh4 Be4 11.Rg1 h6=+; D3) 8.b5 Bd6 (8...Be7 9.Be2 0–0 10.0–0 Nb6 11.g4 Bg6=; 8...Ne5 9.Be2 Bf3 10.Bf3 Nc4 11.Bc1 Bd6=; 8...Bc5 9.Be2 0–0 10.0–0 Qe7 11.d3 a4=+) 9.Be2 0–0 10.0–0 e5 11.d3 c6=+.

7.c4 a5 A) 8.c5 Be7 (8...ab4 9.ab4 Ra1 10.Ba1 c6 11.d4 b6=; 8...c6 9.d4 ab4 10.ab4 Ra1 11.Ba1 Be7=) 9.Be2 Bf3 10.Bf3 0–0 11.0–0 e5=; B) 8.cd5 ed5 (8...Nd5 9.b5 N7f6 10.Nc3 Nc3 11.Bc3 Bd6=) 9.b5 Bd6 10.Be2 0–0 11.0–0 c5=; C) 8.ba5 dc4 (8...Bd6 9.d4 dc4 10.Nbd2 c3 11.Bc3 Nd5=; 8...Ra5 9.cd5 ed5 10.Bc3 Ra8 11.Be2 Be7=) 9.Bc4 Ra5 10.d3 Nb6 11.Nbd2 Ra7=+; D) 8.g4 Bg6 9.b5 dc4 10.Bc4 Nb6 11.Be2 a4=; E) 8.b5= Nb6 (8...dc4 9.Bc4 Bd6 10.0–0 0–0 11.d4 Rc8=; 8...Bd6 9.d4 dc4 10.Bc4 0–0 11.0–0 Rc8=) 9.cd5 Nbd5 10.Nc3 Nc3 11.Bc3 Bd6=.

7.c4 a6 A) 8.c5 b6 (8...a5 9.Be2 Bf3 10.Bf3 c6 11.0–0 b6=; 8...Be7 9.Be2 0–0 10.0–0 a5 11.Nc3 Bf3=; 8...Qe7 9.g4 Bg6 10.d3 h6 11.Qa4 c6=; 8...Bf3 9.Qf3 a5 10.Be2 Be7 11.0–0 0–0=) 9.c6 Nb8 10.g4 Bg6 11.Ne5 Bd6=; B) 8.d3 dc4 9.g4 Bg6 10.g5 Nh5 11.dc4 a5=; C) 8.cd5 ed5 (8...Nd5 9.Be2 c5 10.bc5 Nc5 11.0–0 b5=) 9.Be2 Bd6 10.0–0 0–0 11.Nc3 Re8=.

7.c4 dc4 8.Bc4= Bd6 (8...c5 9.bc5 Bc5 10.d4 (10.Qb3= Bf3 11.gf3 a6=) 10...Bd6 11.Nc3 Rc8=; 8...Nb6 9.Be2 Bd6 10.0–0 a5 11.b5 0–0=; 8...a5 9.b5 Bd6 10.0–0 0–0 11.d4 Rc8=; 8...Be7 9.d4 a5 10.b5 0–0 11.0–0 c6=) 9.d4 (9.0–0 a5 10.b5 0–0 11.d4 Rc8=) 9...0–0 (9...Nb6 10.Bd3= 0–0 11.0–0 Qd7=) 10.Nc3 (10.0–0 a5 11.b5 Bg6= (11...Rc8=)) 10...a5 11.b5 c5 (11...Nb6 12.Bd3=; 11...Rc8=) 12.bc6 bc6 13.Bd3 Rb8 (13...Rc8 14.Rc1=) 14.Rb1 Qe7 15.Qa4 c5 (15...Bf3 16.gf3 e5 17.Ne4= (< 17.Qc6 Rfc8 18.Qa6 Ba3–+; 17.Qa5? Ra8 18.Ba6 ed4–+)) 16.Nd2 (16.Nb5 Bf3 17.gf3 cd4 18.Bd4 Nc5 19.Bc5 Bc5=+) 16...cd4=+ 17.ed4 Nd5 18.Qc2 (18.Nde4 Nf4 19.Bf1 Bg6–/+) 18...Rfc8–/+ 19.Nc4 Bg6 20.Bg6 (20.Nd6 Qd6 21.Bg6 hg6–+) 20…Rc4–+ (21.Bh7 Kh8–+; 20...fg6?! 21.Ne4=+) 0–1. Hanison,Bernard (2060) – Vetro,Filippo (2145), Friendly, 2002.

7.c4 c6 8.c5 b6 9.d4 bc5 10.dc5 a5 11.Nbd2 Be7 12.Bd3 0–0 13.Qc1 (13.g4 Bg6 14.Bg6 hg6= (worse is 14...fg6 15.Nd4+/–)) 13...Qb8 14.Qc3 e5 15.0–0 (15.Ne5 ab4 16.ab4 Ne5 17.Qe5 Qb4 18.Ra8 (18.Qe7? Qb2 19.Rb1 Qc3–+) 18...Ra8 A) 19.Qe7? Qb2 20.g4 Qc1 21.Ke2 Qh1 22.gh5 Qh3–+ (22...Nh5?! 23.Qd7–+); B) 19.g4–/+) 15...e4+= 16.Nd4 ed3 17.Nc6 Qe8 18.Qd3 Bg6 19.Qd4 Rc8 (19...ab4 20.ab4 Rc8 21.Ne7 Qe7 22.Ra7=) 20.Na5= Bd8 21.Nab3 Qe7 (21...Bc7 22.Qh4=) 22.Rfc1+= Bc7 23.Nf3 Be4 24.Nbd2 Rb8 25.a4 Rfc8 26.b5 (26.Ne4?! de4 27.c6 Nb6=) 26...Nf8 27.Ne4 de4 28.Ne5 Ne6 29.Qd1 Nc5 30.Nc6 (30.Nc6 Bh2 31.Kh2 Rc6 32.bc6 Rb2 33.Rc5 Qc5 34.Qd8 Qf8 35.c7+–) 1–0. pgcbies – marekt, ChessWorld.net, 2015.

7.c4 c6 8.d4 Ne4 (8...Be7 9.c5 b6 10.Bd3 Rb8 11.Ra2 0–0=; 8...Bg6 9.c5 Ne4 10.Bd3 Qf6 11.Nc3 Nc3=; 8...dc4 9.Bc4 Bd6 10.Nc3 0–0 11.0–0 Qe7=; 8...Bd6 9.Nbd2 0–0 10.c5 Bc7 11.Be2 Ne4=) 9.Bd3 Qf6 10.Qe2 Bd6 11.c5 Bc7 =+.

7.c4 c6 8.g4 Bg6 =.

7.c4 Be7 8.cd5 ed5 9.Be2 0–0 10.0–0 Re8 11.Nc3 Bf3 =.

7.d3 a5 A) 8.b5 Bc5 (8...Be7 9.Be2 Bd6 10.g4 Bg6 11.g5 Nh5+=; 8...Bd6 9.Be2 0–0 10.0–0 Qe7 11.Nbd2 e5=+) 9.g4 Bg6 10.h4 Ng4 11.Bg7 Rg8=+; B) 8.ba5 Bd6 (8...Ra5 9.Qd2 b6 10.g4 Bg6 11.Be2 h6=+; 8...Bf3 9.Qf3 Bd6 10.Bc3 Ne5 11.Be5 Be5=+) 9.g4 Bg6 10.Nh4 Ra5 11.Qd2 Rb5=+; C) 8.g4 Bg6 9.b5 Bc5 10.h4 Ng4 11.Bg7 Rg8=+.

7.d3 c5 A) 8.Bc3 Bd6 (8...Be7 9.bc5 Bc5 10.g4 Bg6 11.g5 Nh5=+; 8...h6 9.bc5 Bc5 10.Be2 Rc8 11.0–0 Bf3=+; 8...Bf3 9.Qf3 Rc8 10.Ra2 cb4 11.Bb4 Bb4=+; 8...Nb6 9.bc5 Bc5 10.g4 Bg6 11.g5 Nh5=+) 9.bc5 Nc5 10.g4 Bg6 11.g5 Nh5=+; B) 8.bc5 Bc5 (8...Nc5 9.g4 Bg6 10.Nh4 Rc8 11.Nc3 Qa5=+) 9.g4 Bg6 10.h4 h6 11.Nbd2 Ng4=+; C) 8.g4 Bg6 9.bc5 Bc5 10.Nh4 0–0 11.Ng6 fg6=+.

7.d3 Bd6 A) 8.g4 Bg6 9.Nh4 a5 10.b5 0–0 11.Ng6 fg6=; B) 8.Be2 0–0 (8...e5 9.0–0 a5 10.b5 0–0 11.Nc3 c6=+; 8...a5 9.b5 0–0 10.0–0 Qe7 11.Nbd2 e5=+; 8...Bf3 9.Bf3 a5 10.b5 c6 11.c4 0–0=) 9.g4 Bg6 10.Nc3 c5 11.bc5 Nc5=+; C) 8.Nc3 Bf3 (8...0–0 9.g4 Bg6 10.h4 h5 11.gh5 Bh5=; 8...c6 9.g4 Bg6 10.Nh4 0–0 11.Ng6 fg6=+; 8...Qe7 9.g4 Bg6 10.Qd2 c6 11.Nh4 e5=+; 8...a6 9.g4 Bg6 10.Nh4 Nf8 11.Bg2 N6d7=) 9.Qf3 c6 10.g4 h6 11.Bg2 0–0=+; D) 8.c4 c6 (8...c5 9.cd5 ed5 10.g4 Bg6 11.g5 Nh5=; 8...Be5 9.d4 Bd6 10.c5 Be7 11.Be2 0–0=) 9.g4 Bg6 10.Nh4 0–0 11.f4 Ne8=.

7.d3 Be7 A) 8.Be2 0–0 (8...Bf3 9.Bf3 c5 10.bc5 Nc5 11.Nd2 Rc8=; 8...Bd6 9.c4 c5 10.cd5 ed5 11.bc5 Nc5=) 9.0–0 c5 10.bc5 Bc5 11.Nbd2 Rc8=; B) 8.c4 0–0 (8...dc4 9.dc4 a5 10.c5 0–0 11.Be2 Nd5=+; 8...a5 9.cd5 ed5 10.b5 0–0 11.Be2 Bd6=) 9.g4 Bg6 10.Bg2 a5 11.g5 Ne8=+; C) 8.Nc3 c5 (8...0–0 9.g4 Bg6 10.h4 h5 11.gh5 Bh5=; 8...a5 9.b5 0–0 10.g4 Bg6 11.Bg2 c6=; 8...Bf3 9.Qf3 a5 10.b5 0–0 11.Be2 Rc8=; 8...Bg6 9.Nh4 a5 10.Ng6 fg6 11.b5 0–0=) 9.bc5 Nc5 10.Be2 0–0 11.Rb1 Rc8=+; D) 8.Rg1 Bf3 (8...Bg6 9.Nh4 0–0 10.Ng6 fg6 11.c4 dc4=+; 8...a5 9.g4 Bg6 10.g5 Nh5 11.Be2 h6=; 8...0–0 9.g4 Bg6 10.h4 h5 11.gh5 Bh5=; 8...Bd6 9.g4 Bg6 10.g5 Nh5 11.Be2 h6+=) 9.Qf3 c5 10.bc5 Nc5 11.g4 0–0=+; E) 8.g4 Bg6 9.Nh4 0–0 10.Bg2 a5 11.Ng6 fg6=.

7.d3 Bf3 8.Qf3 c5 (8...a5 9.b5 c6 10.d4 Qb6 11.Nc3 a4=; 8...c6 9.c4 a5 10.cd5 cd5 11.b5 Rc8=+; 8...Bd6 9.c4 c6 10.Nd2 a5 11.c5 Bc7=) 9.bc5 Bc5 10.Nd2 Qa5 11.Rb1 Rb8 =+.

7.Bd3 A) 7...a5 A1) 8.b5 Be7 (8...Nc5 9.Be2 Bd6 10.Nc3 Bf3 11.Bf3 0–0=; 8...c6 9.Nc3 Bf3 10.Qf3 Ne5 11.Qe2 Bd6=; 8...c5 9.0–0 Bd6 10.Be2 0–0 11.d3 Qb6=; 8...a4 9.Nc3 Bd6 10.0–0 0–0 11.g4 Bg6=+) 9.g4 Bg6 10.Bg6 hg6 11.g5 Ne4=+; A2) 8.ba5 Ra5 (8...Nc5 9.Be2 Bd6 10.g4 Bg6 11.g5 Nh5=) 9.Be2 Bd6 10.g4 Bg6 11.g5 Nh5=; B) 7...c5 B1) 8.bc5 Bc5 (8...Rc8 9.Ra2 Bc5 10.g4 Bg6 11.Bg6 fg6=+; 8...Rb8 9.Bb5 Qa5 10.Nc3 a6 11.Bd7 Nd7=; 8...Nc5 9.Bb5 Nfd7 10.Nc3 Bd6 11.0–0 0–0=+) 9.0–0 0–0 10.Nc3 Ne5 11.Be2 Bf3=+; B2) 8.Bc3 Rc8 (8...a6 9.Be2 Bd6 10.g4 Bg6 11.bc5 Bc5=; 8...c4 9.Be2 Bd6 10.d3 Bf3 11.Bf3 Rc8=; 8...Bf3 9.Qf3 c4 10.Be2 Bd6 11.d3 Qc7=+; 8...Qc7 9.bc5 Ne4 10.Bb2 f6 11.Be2 Ndc5=) 9.bc5 Bc5 10.g4 Bg6 11.Bg6 fg6=+; B3) 8.g4 Bg6 9.g5 Ne4 10.h4 cb4 11.ab4 h6=+; C) 7...e5 8.g4 e4 9.gh5 ed3 10.cd3 Nh5 11.Ne5 Nhf6=; D) 7...c6 D1) 8.Ra2 Be7 (8...Bf3 9.Qf3 Bd6 10.0–0 Ne5 11.Be5 Be5=+; 8...a5 9.b5 e5 10.g4 e4 11.gh5 ed3=; 8...a6 9.0–0 Bd6 10.Nc3 c5 11.bc5 Nc5=+; 8...e5 9.g4 e4 10.gh5 ed3 11.cd3 Nh5=+) 9.g4 Bg6 10.Bg6 hg6 11.Ne5 g5=+; D2) 8.Qe2 a5 (8...Bf3 9.Qf3 Bd6 10.Be2 a5 11.b5 Rc8=+; 8...a6 9.Bc3 a5 10.ba5 Ne4 11.g4 Bg6=+; 8...c5 9.bc5 Nc5 10.Bb5 Nfd7 11.Qd1 a6=) 9.b5 Nc5 10.bc6 bc6 11.g4 Nd3=+; D3) 8.Be2 Qb6 (8...a5 9.b5 Bf3 10.gf3 Bd6 11.Nc3 e5=+; 8...Bd6 9.g4 Bg6 10.g5 Nh5 11.Rg1 h6+=; 8...Nb6 9.g4 Bg6 10.Ne5 a5 11.g5 Nfd7=; 8...Bf3 9.Bf3 a5 10.ba5 Qa5 11.0–0 Bd6=+) 9.Ra2 Bf3 10.Bf3 a5 11.ba5 Qa5=+; D4) 8.g4 Bg6 9.Be2 h6 10.Nc3 Bd6 11.b5 c5=+; D5) 8.0–0 a5 (8...c5 9.bc5 Bc5 10.Nc3 0–0 11.Be2 Nb6=+; 8...Bd6 9.Nc3 e5 10.Be2 0–0 11.Nh4 Be2=+; 8...Be7 9.Nc3 Ne5 10.Be2 Bf3 11.Bf3 Nc4=; 8...e5 9.g4 Bg4 10.hg4 e4 11.Be2 ef3=+) 9.b5 Bd6 10.Nc3 Ne5 11.Be2 Bf3=+; E) 7...a6 E1) 8.0–0 a5 (8...Be7 9.Nc3 c5 10.bc5 Nc5 11.Be2 0–0=+; 8...c5 9.bc5 Bc5 10.Be2 0–0 11.a4 Qc7=+; 8...Bd6 9.c4 0–0 10.c5 Be5 11.Nc3 Ne4=+) 9.ba5 Ra5 10.Bc3 Ra8 11.Be2 Bd6=+; E2) 8.Be2 c5 (8...Bd6 9.g4 Bg6 10.g5 Ne4 11.Bg7 Rg8+=; 8...Bf3 9.Bf3 c5 10.bc5 Bc5 11.0–0 0–0=) 9.bc5 Bc5 10.g4 Bg6 11.Nc3 0–0=+; E3) 8.Ra2 c6 (8...c5 9.bc5 Nc5 10.Be2 Bd6 11.g4 Bg6=; 8...Bf3 9.Qf3 Bd6 10.Be2 c6 11.0–0 b5=; 8...e5 9.g4 e4 10.gh5 ed3 11.cd3 Nh5=; 8...a5 9.b5 Nc5 10.Be2 Bd6 11.0–0 0–0=+) 9.Nc3 c5 10.g4 Bg6 11.Bg6 hg6=+; E4) 8.Qe2 a5 (8...Bf3 9.Qf3 Bd6 10.Be2 0–0 11.c4 dc4=; 8...c6 9.Bc3 a5 10.ba5 Ne4 11.g4 Bg6=+; 8...c5 9.g4 Bg6 10.Bg6 hg6 11.bc5 Ng4=+; 8...Rc8 9.b5 ab5 10.Bb5 c6 11.Bd3 Nc5–/+) 9.ba5 Ra5 10.Bc3 Ra7 11.Ra2 Ne4–/+; E5) 8.Nc3 c5 (8...Nb6 9.Rb1 Be7 10.Qe2 a5 11.b5 Bd6=; 8...Bf3 9.Qf3 Bd6 10.0–0 Ne5 11.Qe2 0–0=; 8...a5 9.b5 Ne5 10.Be2 Bf3 11.Bf3 Nc4=; 8...Ne5 9.Be2 Bf3 10.gf3 Bd6 11.f4 Ng6=+) 9.bc5 Nc5 10.Be2 Bd6 11.a4 0–0=+.

7.Be2 A) 7...a5 8.b5 Bd6 (8...Bc5 9.g4 Bg6 10.g5 Nh5 11.Rg1 h6+=) 9.g4 Bg6 10.g5 Ne4 11.Bg7 Rg8+=; B) 7...Be7 B1) 8.g4 Bg6 9.g5 Ne4 10.Bg7 Rg8 11.Bb2 Ng5=+; B2) 8.Nc3 a5 (8...0–0 9.0–0 a5 10.b5 Bf3 11.Bf3 Nb6=; 8...Nb6 9.g4 Bg6 10.Ne5 a5 11.b5 d4=) 9.g4 Bg6 10.b5 0–0 11.d3 Bc5=; B3) 8.0–0 0–0 (8...Bd6 9.Nc3 0–0 10.Nb5 Be7 11.Nbd4 a5=) 9.Nc3 a5 10.b5 Nb6 11.g4 Bg6=; C) 7...Bd6= C1) 8.Nc3 a6 (8...c6 9.g4 Bg6 10.Nh4 Be4 11.Rg1 h6=; 8...0–0 9.Nb5 Be7 10.Nbd4 Bf3 11.Nf3 c5=; 8...Bf3 9.Bf3 0–0 10.0–0 a5 11.b5 Nb6=; 8...a5 9.Nb5 0–0 10.Nd6 cd6 11.0–0 Qb6=) 9.0–0 0–0 10.g4 Bg6 11.Nh4 Ne4=+; C2) 8.0–0 a5 (8...0–0 9.Nc3 a5 10.b5 Nb6 11.d3 Re8=+; 8...e5 9.Nh4 Be2 10.Qe2 0–0 11.Nf5 Nb6=; 8...c6 9.d3 a5 10.ba5 Bf3 11.Bf3 Qa5=+; 8...Nb6 9.d3 0–0 10.Nbd2 a5 11.b5 Qe7=) 9.b5 0–0 10.d3 Qe7 11.Nbd2 e5=+; C3) 8.Ra2 0–0 (8...a5 9.b5 0–0 10.Nc3 Nb6 11.d3 c5=+; 8...e5 9.Nc3 e4 10.Nd4 Be2 11.Qe2 0–0=; 8...Qe7 9.g4 Bg6 10.g5 Nh5 11.Rg1 h6=; 8...Bf3 9.Bf3 c6 10.Be2 b5 11.a4 ba4=+) 9.0–0 e5 10.Nc3 a5 11.b5 a4=+; C4) 8.d3 0–0 (8...e5 9.0–0 a5 10.b5 Qe7 11.Nbd2 0–0=+; 8...a5 9.b5 0–0 10.0–0 e5 11.Nc3 Qe7=; 8...Bf3 9.Bf3 a5 10.b5 c6 11.c4 0–0=) 9.Nc3 c5 10.bc5 Nc5 11.Qd2 Rc8=+; C5) 8.g4 Bg6 9.g5 Ne4 10.Bg7 Rg8 11.Bh6 Ne5+=; D) 7...c5 D1) 8.b5 Bd6 9.Nc3 0–0 10.0–0 e5 11.d3 Qa5=+; D2) 8.bc5 Bc5 (8...Bf3 9.Bf3 Bc5 10.0–0 0–0 11.Nc3 Nb6=+; 8...Qa5 9.g4 Bg6 10.Nc3 Qc5 11.d3 h6=+) 9.Nc3 0–0 10.Rb1 Qe7 11.0–0 Rfb8=+; D3) 8.Bc3 Ne4 (8...Be7 9.bc5 Bc5 10.g4 Bg6 11.g5 Nh5=; 8...Bf3 9.Bf3 Bd6 10.bc5 Nc5 11.Bf6 Qf6=; 8...Bd6 9.bc5 Bc5 10.g4 Bg6 11.g5 Nh5=; 8...cb4 9.ab4 Bf3 10.Bf3 Bd6 11.Na3 a6=) 9.Bb2 Qb6 10.0–0 cb4 11.Bd4 Ndc5=+; D4) 8.g4 Bg6 9.g5 Ne4 10.h4 h6 11.Bb5 hg5=.

7.Rg1 Bd6 A) 8.d3 Bf3 9.gf3 0–0 10.c4 dc4 11.dc4 a5=+; B) 8.Nc3 0–0 9.g4 Bg6 10.Nh4 Ne4 11.g5 Bh2=+; C) 8.g4 Bg6 9.g5 Nh5 10.Be2 h6 11.Nh4 hg5+=.

7.g4 Bg6 A) 8.d3 c5 (8...a5 9.b5 Bd6 10.Nh4 0–0 11.Bg2 c6=) 9.bc5 Bc5 10.Nh4 0–0 11.Ng6 fg6=+; B) 8.Be2 a6 (8...a5 9.b5 h6 10.Nc3 Bd6 11.d3 e5=+; 8...Bd6 9.g5 Ne4 10.Bg7 Rg8 11.Bh6 Ne5+=; 8...Rc8 9.g5 Ne4 10.h4 Bh5 11.d3 Nd6=; 8...h6 9.d3 c5 10.bc5 Bc5 11.Nbd2 Rc8=+) 9.g5 Ne4 10.h4 h6 11.gh6 Rh6=+; C) 8.Nc3 a5 (8...h6 9.Bg2 Be7 10.0–0 0–0 11.d3 c5=+; 8...Be7 9.Nh4 Be4 10.Ng2 0–0 11.f3 Bg6=) 9.ba5 Ra5 10.Nh4 Be4 11.Rg1 h6=+; D) 8.g5 Ne4 (8...Nh5 9.Rg1 a5 10.Be2 ab4 11.Ne5 Ne5+=; 8...Ng8 9.Rg1 Ne7 10.d3 Rc8 11.Nbd2 c5=) 9.h4 h6 10.d3 Nd6 11.Bg2 hg5=+; E) 8.Rg1 h6 (8...a5 9.b5 a4 10.Nh4 Nb6 11.Ng6 hg6=; 8...Qe7 9.d3 h6 10.h4 e5 11.g5 hg5=) 9.Nc3 e5 10.Nh4 Bh7 11.Nf5 c6=+.

4.Nc3 e5

5.a3 A) 5...d4 A1) 6.Nb1 a5 7.g4 Bg6 8.Bg2 c6 9.Nf3 Nd7–/+; A2) 6.Na4 b5 7.Nc5 Bc5 8.bc5 Qd5 9.c3 Nc6=+; A3) 6.Na2 Nc6 7.Nf3 Bd6 8.g4 Bg6 9.e3 Qf6=+; A4) 6.Ne4 Nd7 7.Ng3 Bg6 8.e3 de3 9.de3 c5=; B) 5...a5 B1) 6.g4 Bg6 7.Bg2 c6 8.Na2 Nd7 9.Nf3 Bd6=+; B2) 6.Na2 Bd6 7.g4 Bg6 8.Bg2 c6 9.h4 h5=+; B3) 6.Nf3 ab4 7.ab4 Ra1 8.Qa1 Nc6 9.b5 Nb4=+; B4) 6.ba5 Ra5 7.g4 Bg6 8.e3 Nf6 9.Nf3 Nfd7=+; B5) 6.b5 Nf6 7.Nf3 d4 8.Na4 Bd6 9.c3 c5=+; C) 5...Nf6=+ 6.Nf3 d4 7.Nb1 Bd6 8.g4 Bg6 9.c3 dc3=+; D) 5...Nc6 D1) 6.Nf3 a6 7.e4 d4 8.Nd5 Na7 9.g4 Bg6–/+; D2) 6.Na4 Nf6 7.Nf3 b5 8.g4 Bg6 9.e4 Rb8=+; D3) 6.Nb1 Be7 7.Nf3 Bf6 8.b5 e4 9.Ra2 Na5=+; D4) 6.Na2 f6 7.g3 Qd7 8.Bg2 0–0–0 9.d4 Nge7; D5) 6.g4 Bg6 7.Bg2 d4 8.Ne4 Nf6 9.Nf6 Qf6=+.

5.Nb1 A) 5...Nd7 A1) 6.a3 c6 7.d4 e4 8.Bc1 Bd6 9.g4 Bg6–/+; A2) 6.Nf3 Bf3 7.ef3 Bb4 8.f4 Bd6 9.fe5 Be5–/+; A3) 6.g4 Bg6 7.Bg2 Ngf6 8.a3 a5 9.b5 c6=+; B) 5...Nc6 6.a3 Be7 7.Nf3 Bf6 8.b5 e4 9.Ra2 Na5=+; C) 5...f6 C1) 6.c3 Bd6 7.g3 Ne7 8.Bg2 0–0 9.Nf3 a5–/+; C2) 6.a3 Nd7 7.g4 Bf7 8.Bg2 c5 9.Nc3 Nb6–/+; C3) 6.b5 Qd7 7.a4 a6 8.g4 Bg6 9.e3 Bd6=+; D) 5...Bd6 D1) 6.a3 Nf6 7.Nf3 Nbd7 8.Nc3 d4 9.Nb5 Be7–/+; D2) 6.Nf3 Qe7 7.a3 c6 8.Nc3 f5 9.d4 e4–/+; D3) 6.g4 Bg6 7.Bg2 c6 8.Nf3 Nd7 9.a3 a5–/+.

5.Nf3 d4 6.Ne4 Qd5 7.Ng3 Bf3 8.ef3 Bb4 9.c3 Bc5 =+.

5.Nf3 Bf3–/+ 6.ef3 Bb4 7.Bb5 c6–/+ 8.Ba4 Nd7 9.0–0 Qa5 10.Bb3 Ngf6 11.a3 Bc5 12.Na4 Bd6–+ 13.Re1 b5 14.Bc3 Qd8 15.Nb2 0–0–+ 16.d3 a5 17.Qd2?? a4 18.Ba2 Nh5 19.Nd1 Qh4 20.Ne3? g6 21.Ng4–/+ Nf4 22.Be5?? Ne5 23.Ne5?? Qg5 24.Ng4 Nh3! 25.gh3 Qd2 26.Nf6 Kg7 27.Ng4 f5 28.Ne3 d4 29.Ng2 Rae8 30.Red1 Qc3 31.f4 Re2 32.Kf1 Qc2 (33.Rd2 Qd2 34.Rb1 Rf2 35.Kg1 Rg2 36.Kh1 Rh2 37.Kg1 Qg2#) 0–1. milanista – thotares (1680), internet, 2007.

5.g4 Bg6

6.Bg2 Bb4 7.Nd5 Bd6 8.Nf4 =.

6.Bg2 c6 7.a3 a5 8.Na2 Nd7 9.Nf3 Bd6 =+.

6.Bg2 c6 7.a3 h5 8.e4 d4 9.Nce2 Nf6 10.Ng3 Nbd7 11.Rb1 a5 12.Ba1 ab4 13.ab4 hg4 14.hg4 Rh1 15.Bh1 Qb6 16.g5 Nh7 17.Nf3 Be7 18.Nh4 Ng5 19.Ng6 fg6 20.Qg4 Nc5! 21.Qd1 (21.bc5 Qb1 Double attack (21...Qb1 Pinning; 21...Qb1 Deflection)) 21...Nce6 22.c3 (22.b5 cb5 23.Bb2 Bc5–/+) 22...Nh3 (22...dc3!? 23.Bc3 Nf4 24.d4–+) 23.Bg2–/+ Nhf4 24.Bf1 d3 1–0. Sala,Stefano – Tessieri,Franco, IECG, 2004.

6.Bg2 Nf6 7.h4 Ng4 8.Nd5 c6 9.h5 Bf5 =+.

4.Nc3 e6

5.a3 a5 6.g4 Bg6=+ 7.Nf3 Nf6 8.Bg2 Nbd7 9.e3 ab4–/+ 10.ab4 Ra1 11.Ba1 Bb4 12.Nh4 Be4 13.Be4 Bc3 14.Bc3 Ne4 15.Nf3 Nc3 16.dc3 Qf6 17.Nd4 Ne5 18.Qe2 0–0 19.0–0 c5 20.Nb3 Nf3 21.Kh1 h5 22.Nc5? hg4 (23.Rg1 Ng1 24.Kg1 gh3–+) 0–1. JonathanDee – pierre (2165), internet, 2007.

5.a3 a6 A) 6.g4 Bg6 7.Nf3 d4 8.Na4 Nc6 9.Bg2 e5=+; B) 6.g3 Nf6 7.Bg2 c5 8.bc5 Bc5 9.Na4 Be7=+; C) 6.Rb1 e5 7.g4 Bg6 8.Bg2 c6 9.h4 h5=+; D) 6.Nf3 Nf6 7.g4 Bg6 8.Bg2 c5 9.bc5 Bc5=+.

5.a3 c6 6.Nf3 Nf6 7.g4 Bg6 8.Rg1 Bd6 9.h4 h5 =+.

5.a3 Nc6 A) 6.Nf3 d4 7.Nb1 Bf3 8.ef3 Qd6 9.Bb5 0–0–0=; B) 6.Na4 Nf6 7.Nf3 Bf3 8.ef3 a6 9.Bd3 d4=+; C) 6.g4 Bg6 7.e3 Bd6 8.Nb5 Be5 9.Be5 Ne5=.

5.a3 d4 A) 6.Na2 Nf6 7.g4 Bg6 8.Nf3 c5 9.e3 de3=; B) 6.Na4 e5 7.g4 Bg6 8.Bg2 c6 9.Nf3 Nd7=+; C) 6.Ne4 a5 7.Ng3 Bg6 8.Nf3 ab4 9.ab4 Ra1=.

5.a3 Nd7 A) 6.Nf3 Bf3 7.ef3 Ngf6 8.Bd3 c5 9.bc5 Bc5=+; B) 6.Ra2 a5 7.b5 Nb6 8.Qb1 Nf6 9.e3 Bc5=+; C) 6.g4 Bg6 7.Nf3 Ngf6 8.Nh4 c5 9.bc5 Be4=+.

5.a3 e5 6.Nf3 d4 7.Na2 Nd7 8.e3 de3 9.de3 Qf6 =.

5.a3 Nf6 A) 6.Nf3 c5 7.bc5 Bc5 8.e3 Nc6 9.g4 Bg6=+; B) 6.Nb5 Nbd7 7.Nf3 c6 8.Nbd4 a5 9.g4 Bg6=+; C) 6.g4 Bg6 7.Nf3 a5 8.b5 Bd6 9.Bg2 0–0=+.

5.Rb1 A) 5...Nf6 A1) 6.Nb5 Nbd7 7.g4 Bg6 8.Nf3 a6 9.Nbd4 h5–/+; A2) 6.g4 Bg6 7.a3 d4 8.Na4 a5 9.Nc5 ab4–/+; A3) 6.a3 d4 7.Na4 e5 8.g4 Bg6 9.Bg2 c6=+; A4) 6.Na4 Nbd7 7.Nf3 a5 8.b5 Bd6 9.e3 0–0=+; B) 5...Nc6 B1) 6.b5 Nd4 7.Nf3 Nf3 8.ef3 Bg6 9.Ne2 Qd6=+; B2) 6.a3 Nf6 7.g4 Bg6 8.e3 d4 9.Nb5 de3=+; C) 5...c6 6.a3 Nf6 7.g4 Bg6 8.Nf3 a5 9.Na2 b5=+; D) 5...a6 D1) 6.g4 Bg6 7.Bg2 Nf6 8.a3 Bd6 9.Nf3 0–0=+; D2) 6.Na4 Nf6 7.g4 Bg6 8.Nf3 Nbd7 9.Bd4 Be4=+; D3) 6.a3 Nc6 7.Nf3 e5 8.e4 d4 9.Nd5 Nf6=+; E) 5...d4 E1) 6.Nb5 e5 7.c3 a5 8.Qa4 Nd7 9.ba5 c6–+; E2) 6.Na4 Bb4 7.Bc1 Nc6 8.a3 Bd6 9.Rb7 Nf6=+.

5.Nf3 A) 5...Nd7 A1) 6.a3 Ngf6 7.g4 Bg6 8.Nh4 a5 9.b5 Be4=+; A2) 6.e3 Ngf6 7.g4 Bg6 8.a3 a5 9.ba5 Ra5=+; A3) 6.g4 Bg6 7.a3 Ngf6 8.Nh4 a5 9.b5 Be4=+; A4) 6.e4 d4 7.Ne2 e5 8.c3 dc3 9.Bc3 Qf6=+; B) 5...Nf6 B1) 6.a3 a5 7.ba5 Bf3 8.ef3 Ra5 9.Bd3 Bc5=+; B2) 6.g4 Bg6 7.a3 Nbd7 8.Nh4 a5 9.b5 Be4=+; C) 5...a6 C1) 6.e3 Nd7 7.b5 ab5 8.Bb5 c6 9.Be2 Bf3=+; C2) 6.a3 Bf3 7.gf3 Nf6 8.Rg1 Rg8 9.e3 Nbd7=+; C3) 6.Rg1 d4 7.Ne4 Nc6 8.c3 Qd5 9.Ng3 Bf3=+; C4) 6.g4 Bg6 7.a3 d4 8.Nb1 Nc6 9.Bg2 Nf6=; D) 5...c6 6.a3 Nf6 7.g4 Bg6 8.Bg2 a5 9.b5 d4=+; E) 5...a5 E1) 6.ba5 Bf3 7.ef3 Ra5 8.Nb5 c6 9.Nd4 Nf6=+; E2) 6.a3 Bf3 7.ef3 Nf6 8.b5 Bd6 9.Be2 0–0=+; E3) 6.b5 a4 7.a3 Bf3 8.ef3 Nf6 9.Qe2 Bd6=+; F) 5...Bf3 6.ef3 Nf6 7.a3 a5 8.b5 Bd6 9.Be2 0–0=+.

4.c4 dc4=+

5.Na3 Nc6–/+ (A) 6.g4 Qd5 7.Nf3 Bg6 8.b5 Nb4 9.Bg2 e6 10.Qa4=+; (B) 6.Qa4 (B1) 6...e5 7.Nc4 f6 8.a3 Qd7 9.Nf3 Nge7 10.Rc1=+; (B2) 6...Qd5 7.b5 Ne5 8.Rc1 Rd8 9.Bc3 Be2 10.Be2=+; (C) 6.Nc4 (C1) 6...Nf6 7.Rc1 b5 8.Ne3 Nd4 9.g4 Bg6 10.Bg2+=; (C2) 6...e6 7.Qa4 Bg6 8.Nf3 Be4 9.a3 a6 10.Na5+=; (C3) 6...a6 7.Rc1 Nf6 8.g4 Bg6 9.Bg2 Nd5 10.a3=; (C4) 6...b5 7.Ne5 Ne5 8.Be5 f6 9.Bc3 e5 10.Nf3=; (C5) 6...Qd5 7.Ne3 Qd7 8.g4 Bg6 9.b5 Nb4 10.Qa4=; (D) 6.b5 (D1) 6...Nd4 7.Qa4 Nf6 8.Nc4 c6 9.bc6 b5 10.Nd6=; (D2) 6...Nb4 7.Qa4 e6 8.Nc4 Nf6 9.Rc1 Nbd5 10.Na5=; (D3) 6...c3 7.dc3 Qd1 8.Rd1 Na5 9.Nf3 e6 10.Ne5=.

5.Na3 Qd5 (A) 6.Qc2 b5 7.e4 Qd7 8.g4 Bg6 9.f4 f6 10.Nf3=+; (B) 6.Nf3 (B1) 6...Nf6 7.g4 Bg6 8.Rc1 c3 9.Bc3 c6 10.Ra1=+; (B2) 6...c6 7.g4 Bg6 8.Bg2 Nf6 9.Rc1 c3 10.Bc3=+; (B3) 6...Nc6 7.b5 Nb4 8.Qa4 Bf3 9.gf3 e6 10.Bc3=+; (B4) 6...e6 7.Rc1 a5 8.Qa4 c6 9.b5 Ba3 10.Qa3=+; (C) 6.Rc1 b5 7.Bc3 a5 8.ba5 Nf6 9.Nc2 Ne4 10.Ne3=+; (D) 6.Qa4 (D1) 6...Nd7 7.Nb5 Kd8 8.Nc3 Nb6 9.Nd5 Na4 10.Be5=; (D2) 6...c6 7.b5 Nd7 8.Qc4 Qc4 9.Nc4 cb5 10.Ne3=+.

5.Qc2 Qd5=+ 6.e4 Bg6 7.ed5 (< 7.Bc4 Qe4 8.Qe4 Be4–/+) 7...Bc2 8.Bc4 =.

5.Qc2 e5

6.b5 c6 (A) 7.e3 Bg6 8.Qc4 a6 9.ba6 Na6 10.Bc3 f6–/+; (B) 7.g4 Bg6 8.Qc4 Nd7 9.Nf3 cb5 10.Qb5 a6=+; (C) 7.Qc4 f6 8.Nc3 Bf7 9.Qa4 a6 10.e4 Qd4=+; (D) 7.Qf5 Bg6 8.Qe5 Qe7 9.Qe7 Ne7 10.Na3 c3=.

6.b5 Bd6 (A) 7.e4 Nf6 8.Bc4 Nbd7 9.Ne2 Rc8 10.d4 c6=+; (B) 7.Nc3 a6 8.e4 c6 9.bc6 Nc6 10.Bc4 Rc8=+; (C) 7.Nf3 Nd7 8.Qc4 Ngf6 9.g4 Bg6 10.d3 a6=+; (D) 7.Na3 Bg6 8.Qa4 Nd7 9.Nc4 Nb6 10.Nd6 cd6=+; (E) 7.Qc4 Nd7 8.g4 Bg6 9.Bg2 Rb8 10.d3 Ngf6=.

6.b5 Qd7 (A) 7.Nf3 f6 8.Qc4 a6 9.Nc3 ab5 10.Qb5 c6=+; (B) 7.e3 Qb5 8.Bc4 Qc5 9.f4 Qc6 10.Qf5 Nd7–/+; (C) 7.Be5 Qb5 8.Qc3 f6 9.Bc7 Na6 10.Bf4 Nb4=+; (D) 7.Qc4 Bd6 8.d4 e4 9.g4 Bg6 10.d5 f6=; (E) 7.a4 Bg6 8.Qc4 a6 9.e4 ab5 10.ab5 Ra1=.

6.b5 Nd7 (A) 7.e4 Rc8 8.Bc4 c6 9.Qd3 cb5 10.Bb5 a6=+; (B) 7.e3 Bd6 8.Bc4 Ngf6 9.d4 Bg6 10.Qe2 e4=+; (C) 7.g4 Bg6 8.Qc4 a6 9.Nf3 ab5 10.Qb5 c6=+; (D) 7.g3 a6 8.Qc4 Bg6 9.Nf3 ab5 10.Qb5 c6=+; (E) 7.Qc4 a6 8.Nf3 ab5 9.Qb5 c6 10.Qd3 Bg6=+.

6.b5 Bg6 7.Qc4 Nd7 8.Nf3 Bd6 9.e3 Ngf6 10.d4 ed4 =+.

6.Qc4 Nd7 7.Nf3 Bd6 8.Nc3 a5 9.Nb5 Ngf6 10.ba5 0–0 11.Nd6 cd6 12.Bc3 Rc8 13.Qb5 Nc5 14.Rc1 Nce4 15.g4 Bg6 16.Bg2 Rc5 17.Qb7 Qa5 18.0–0 Nc3 19.Rc3 Rc3 20.dc3 Qa2 21.Qc6 Qe6 22.Ra1 Be4 23.Ng5 Bg2 24.Kg2 Qd5 25.Qd5 Nd5 26.c4 Nb6 27.Ra6 Nc4 28.Rc6 ½–½. Sternik,Ryszard – Gross,Gerald, email b4–01–05, 2001.

6.Qf5 Nf6 7.Qe5 Qe7 8.a3 Qe5 9.Be5 Nbd7 10.Bc7 a5 +=.

5.Qc2 Nf6

6.Qc4= Nbd7 7.Qb5+= e5 8.Qb7 Rb8= 9.Qa7 Rb4 10.Ba3 Bc5 11.Qa5 Bf2 12.Kd1?? Rb8 13.Bc1 Ne4 14.Nf3 Bb6 (15.Qa4 Bf3–+) 0–1. Nadanian,Ashot – Khachian,Melikset (2370), Yerevan ARM, 1994.

6.Bf6 ef6 7.Qe4 Be7 8.Qb7 Nd7 9.Nc3 Bg6 =.

6.Bf6 gf6 7.Qc4 c6 8.g3 Bg7 9.Bg2 f5 =.

6.Qc4 c6

7.Nf3 Bf3 8.gf3 Nbd7 9.Rg1 Nb6 =.

7.Nf3 Nbd7

8.a3 e6 9.d3 Bf3 10.gf3 a5 11.b5 Nb6 12.Qc2 cb5 13.Qb3 b4 14.a4 (A) 14...Bc5 15.Rg1 0–0 16.e3 Rc8 17.f4 Be7 18.Nd2–/+; (B) 14...Rc8 15.Rg1 Nbd7 16.d4 Nd5 17.e3 b6 18.Nd2–/+; (C) 14...Qd5 15.Nd2 Qb3 16.Nb3 Nfd5 17.Bd4 Nd7 18.Kd2–/+; (D) 14...Nfd7 15.d4 Bd6 16.Nd2 0–0 17.Ne4 Nf6 18.Nd6–/+; (E) 14...Bd6 15.e3 0–0 16.f4 Nbd7 17.d4 Nd5 18.Rg1–/+.

8.a3 e6 9.d3 Bf3 10.gf3 a5 11.b5 Nb6 12.Qc2 cb5 13.Qb3 b4 14.Be5–/+ (A) 14...ba3 15.Na3 Qd5 16.Qd5 Nfd5 17.e4 Bb4 18.Ke2–+; (B) 14...Rc8 15.ab4 Bb4 16.Kd1 Nc4 17.Bc3 Qd5 18.Qa2–+; (C) 14...Nbd7 15.Bd4 Qc7 16.Bg2 Qc1 17.Qd1 Rc8 18.f4–+; (D) 14...Nfd7 15.Bd4 e5 16.Be3 ba3 17.Rg1 Rc8 18.Bd2 –+.

8.a3 e6 9.d3 Bf3 10.gf3 a5 11.b5 Nb6 12.Qc2 cb5 13.Qb3 b4 14.Bg2 (A) 14...a4 15.Qd1 Nbd5 16.0–0 b5 17.f4 Ra6 18.e3–+; (B) 14...ba3 15.Na3 Nfd5 16.Qb5 Qd7 17.f4 Bb4 18.Kf1–/+; (C) 14...Rc8 15.0–0 a4 16.Qd1 b3 17.Nc3 Bc5 18.e3–+.

8.a3 e6 9.d3 Bf3 10.gf3 a5 11.b5 Nb6 12.Qc2 cb5 13.Qb3 Qd7 14.Bf6=+ gf6 15.Nd2 a4 16.Qb2 b4 17.Qf6 Rg8 18.Qh4 ba3 19.e3 h6–/+ 20.Qe4 Nd5 21.d4 b5 22.Be2 b4–+ 23.Bd3 b3 24.Bc4 a2 25.Qh7 Rg7 26.Qd3 Nb4 27.Qe4 Qc8 28.Ke2? Be7 (29.Rhc1 Qb8–+; better is 28...b2 29.Ra2 Na2 30.Ba2 Bd6–+) 0–1. Pierred (2275) – Awesome (2535), Rated game, 3m + 0s, 2005.

8.g4 Bg6 9.d3 Nd5 10.Nbd2 e6 11.a3 a5 12.b5 N7b6 13.Qc2 cb5 14.e4 Rc8 15.Qb1 Nc3 16.Bc3 Rc3 17.Qb5 Nd7 18.Nc4 Bc5 19.Nfe5 b6 20.f4 f6 (20...Bd4 21.Rb1 (worse is 21.Ng6 hg6 22.Rb1 Qh4 23.Kd1 Qf2–/+) 21...Be5 22.Ne5+/– (22.fe5?! 0–0+=)) 21.Ng6 hg6 22.Qb2 Rc4 23.dc4 Qc7 24.e5 fe5 25.Qe2 0–0 26.0–0–0 (better is 26.Bg2!?=) 26...Ba3–/+ 27.Kb1 Rf4 28.Qd3 Rd4 29.Qc2 Qc6 30.Be2 b5 31.Rd4 ed4 (31...Qh1 32.Rd1 Qb7 33.cb5+/–) 32.Rd1 b4 (32...bc4!? 33.Bc4 Nf8–/+) 33.Rd4+= a4 34.Qd2 (34.Qg6 Nf8 35.Qe4 Qb6+=) 34...Nf6 35.Bf3?? (better is 35.Qe3 b3 36.Bf3–/+) 35...Qf3–+ 36.Qd1 (36.Qd3 Qh1 37.Qd1 Qh3–+) 36...Qc3 37.Rd8 Kh7 38.Qc2 Qe1 39.Qd1 Qe4 40.Qc2 Qc6 41.Rd3 b3 42.Rb3 ab3 43.Qb3 Qe4 44.Ka2 Bc5 45.Qb1 Qc4 46.Qb3 Qe2 (better is 46...Qa6!? 47.Kb1 Ne4 48.Qc2 Qb5 49.Qb2 Qf1 50.Ka2–+) 47.Qb2 Qe1 (47...Qa6 48.Kb1–+) 48.Qc2 Ne4 49.h4 Qb4 50.Qb3 Qa5 51.Kb2 Bd4 52.Kb1 Qe1 53.Kc2 Qd2 54.Kb1 Nc3 55.Qc3 (55.Ka1 Qc1 56.Qb1 Qb1) 55...Bc3 56.h5 Qb2 0–1. Martins,Karin – Nenciulescu,Silviu Catalin (2055), IECG, 2004.

5.g4 Qd5

6.f3 Qd6 7.f4 Bg6 8.Bg2 Qf4 9.Bb7 Be4 10.Qa4 Nd7 =.

6.f3 Bg6 (A) 7.Qa4 c6 8.e4 Qd7 9.Nc3 h5 10.g5 b5–/+; (B) 7.e4 Qd6 8.Na3 Qg3 9.Ke2 Nf6 10.Qc2 h5–/+; (C) 7.Na3 b5 8.e4 Qb7 9.d3 e5 10.Nc2 Nd7–/+.

6.Nf3 Bg6 (A) 7.Qa4 c6 8.Bg2 Nd7 9.Nc3 Qd6 10.Nh4 Nb6=+; (B) 7.a3 Nd7 8.Bg2 Qe6 9.Nh4 Be4 10.Nf3 Bf3=+; (C) 7.Bg2 c6 8.Nh4 Qd6 9.Ng6 hg6 10.b5= a6=.

6.Nf3 Bg6 7.Nc3 Qd6 8.Qa4 c6 9.b5 e6 10.Bg2 Ne7 11.Qc4 Nd7 12.Nd4 Nb6–/+ 13.Qb3 c5 14.Nf3= h5 15.Nh4 Rd8 (16.Rd1 (16.Qd1 hg4 17.hg4 Nc4=) 16...c4=; 15...0–0–0 16.Rd1 hg4=). Scholbach,Tillmann (1935) – Burkett,Max (2185), IECG, 2000.

5.g4 Bg6

6.Bg2 c6 7.Na3 e6 8.Nc4= Nf6 9.a3 h6 10.Bf6 Qf6 11.Na5 Qe5 12.Nb7+/– Be4 13.Nf3 Qb5 14.Na5 Be7 15.d3 Bf3 16.Bf3 0–0 17.Rc1 Rc8 18.0–0 a6 19.d4 Ra7 20.e3 Bd8 21.Rc5 Qb6 22.Qa4 Be7 23.Rc2 Rac7 24.Rfc1 (24...Bd6 25.Nc6 Nc6 26.Rc6 Rc6 27.Rc6 Rc6 28.Qc6 Qc6 29.Bc6+–) 1–0. Kern,Michael (1845) – Ralchev,Stoyan (1655), IECC, 2002.

6.Bg2 c6 7.Na3 Nf6 8.Nc4 Nd5 9.a3 Nd7 10.h4 h5 11.g5 Nf4 12.Bf3 Qc7 13.Nh3 Nh3 14.Rh3 e5 15.Bg2 0–0–0 16.Rc1 Kb8 17.b5 c5 18.a4 Bf5 19.Ra3 f6 20.a5 e4 21.Qb3 Qf4 22.a6 Be6 23.Qe3 Qh4 24.ab7 (24.Be4 f5 25.Bg2 Bc4+–) 24...Qg5 25.Qg5 fg5 26.Na5 Re8 27.Nc6 Kb7 28.Ra7 (28.Ra7 Kb6 29.Be4+–) 1–0. Crawford,Gary (2085) – Zhitnikov,Andrew (2050), IECG, 2006.

6.Bg2 c6 7.Qc1 +=.

6.Bg2 Nc6 7.Na3 Nf6 (7...e5 8.Qa4 e4 9.Nc4=) 8.Nc4 Nd5 (worse is 8...Nb4 9.Qa4 Nc6 10.Na5+/–) 9.b5 Nf4 (9...Ncb4 10.d3 a6 11.a3 ab5 12.ab4 Ra1 13.Qa1 (13.Ba1?! bc4 14.Qa4 c6=) 13...bc4 14.Bg7 (worse is 14.dc4 Nb4 15.Qa4 Nc6=) 14...Bg7 15.Qg7+/–) 10.Bf3+= (worse is 10.Bc6 bc6 11.Qb3 Qd5–/+) 10...Nd4 11.Bb7 Rb8 12.Na5 Rb7 13.Nb7 Qd5 A double attack 14.Bd4 Qh1 15.f3 e5 (15...Nh3?? 16.b6 e5 17.ba7+–) 16.Qa4? (16.Be5 A deflection 16...Qg1 A classical mating theme) 16...ed4–/+ 17.0–0–0 Ke7 18.Qb4 (better is 18.Qd4 Qh2 19.Qe5 Kd7 20.Qd4 Bd6 21.Nd6–/+) 18...Kf6 (18...Ke8 19.Qa4 Ne2 (19...Nh3?? 20.b6 Ke7 21.ba7+–) 20.Ne2 Qf3 21.b6 Ke7+=) 19.Qd4= Kg5 20.Nc5 Bd6 21.Ne4 (21.Qg7!? Bc5 22.Qe5 Kh4 23.Qc5=) ½–½. Woelfelschneider,Peter – Fraenken, 2009.

6.Bg2 Nc6 7.Qa4= Qd7 8.b5 Nd4 9.Bb7 Rb8 10.Qa7 (10.Bd4 Rb7 (10...Qd4?? 11.b6 Kd8 12.ba7 Qa7 13.Qa7 Rb7 14.Qb7+–) 11.Ba7 Qb5 12.Qb5 Rb5=) 10...Nc2= 11.Kd1 Rb7 12.Qa8 (12.Qb7 Na1 Discovered attack) 12...Qd8 13.Qb7 Na1 14.Nc3 Nc2 15.Nd5 e6 16.Nc7 Kd7 17.Qc6 Ke7 18.b6 Nf6 19.Nf3 Nb4? (19...Qd7 20.Ne5 Qc6 21.Nc6 Kd6=) 20.Qb5+– Bc2 (20...Qb8 21.Bf6 gf6 22.Qb4 Kd8 23.Qb2+–) 21.Kc1 Be4 22.Qb4 (22.Qb4 Qd6 23.Qd6 Kd6 24.a4+–) 1–0. Woelfelschneider,Peter – Scholz, 2009.

6.Bg2 Nd7 7.Bb7 (7.Qc1 c6 8.Qc4 e5 9.Nc3 a5 10.ba5=+; 7.Na3 e5 8.Nc4 e4 9.h4 h6 10.h5=) 7...Rb8 8.Bg2 c5 9.b5 Rb5 10.Bc3 =.

4.c4 c6

5.cd5 cd5

6.Nf3 Nd7

7.Nc3 e6

8.a3 a5 (A) 9.ba5 Ngf6 10.g4 Bg6 11.Nh4 Ra5 12.Ng6 hg6=; (B) 9.g4 Bg6 10.b5 Rc8 11.Rc1 Ngf6 12.Nh4 Nb6=+; (C) 9.Rc1 Bf3 10.ef3 ab4 11.ab4 Ngf6 12.Nb5 Rc8=+; (D) 9.b5 Rc8 10.e3 Ngf6 11.Be2 Bd6 12.Rc1 0–0=+; (E) 9.Nb5 Bf3 10.gf3 ab4 11.ab4 Ra1 12.Qa1 Ngf6=.

8.a3 a6 (A) 9.g4 Bg6 10.Rc1 Rc8 11.d3 Ngf6 12.e3 h6=; (B) 9.Rc1 Bf3 10.gf3 Rc8 11.e4 Ngf6 12.d4 Nb6=; (C) 9.e3 Ne5 10.Rc1 Nf3 11.gf3 Rc8 12.Qa4 Qd7=+; (D) 9.Rg1 Rc8 10.g4 Bg6 11.Rc1 Ngf6 12.h4 Bd6=; (E) 9.e4 d4 10.Ne2 e5 11.Ng3 Bg6 12.Rc1 Ngf6=.

8.a3 Rc8 (A) 9.Rc1 Bf3 10.ef3 Ngf6 11.Be2 Be7 12.Qa4 a6=+; (B) 9.g4 Bg6 10.Rc1 Ngf6 11.Bg2 Be7 12.Nh4 0–0=; (C) 9.Qa4 Bf3 10.ef3 a6 11.Be2 Ngf6 12.Rc1 Bd6=+; (D) 9.e3 Ngf6 10.Rc1 Be7 11.Be2 0–0 12.0–0 Bf3=; (E) 9.e4 Qe7 10.d3 Ngf6 11.g4 de4 12.de4 Bg6+=.

8.a3 Bf3 (A) 9.ef3 Ngf6 10.Rc1 Be7 11.Be2 0–0 12.0–0 a5=+; (B) 9.gf3 a5 10.Rg1 ab4 11.ab4 Ra1 12.Qa1 Ne7 =.

8.a3 Ngf6 (A) 9.g4 Bg6 10.Rc1 Be7 11.d3 0–0 12.Bg2 a5=; (B) 9.e3 a5 10.b5 Bd6 11.g4 Bg6 12.d3 h6=; (C) 9.Rc1 Be7 10.g4 Bg6 11.d3 0–0 12.Bg2 Rc8=.

8.Qa4 (A) 8...a5 9.Nb5 Ra6 10.Ne5 ab4 11.Qc2 Nc5 12.d4 Ra5=+; (B) 8...Ngf6 (B1) 9.Rc1 Bf3 10.ef3 Be7 11.Qb5 0–0 12.Be2 a6–/+; (B2) 9.Qb5 Rb8 10.g4 Bg6 11.Qa4 a6 12.d3 Bd6=+; (B3) 9.g4 Bg6 10.Rc1 a6 11.Nh4 b5 12.Qa3 Ne5=+; (C) 8...a6 (C1) 9.a3 Bf3 10.gf3 Ngf6 11.Bg2 Bd6 12.Qb3 Rc8=+; (C2) 9.Rc1 Bf3 10.ef3 Ngf6 11.Be2 Bd6 12.0–0 0–0=+; (C3) 9.e3 Bf3 10.gf3 Ngf6 11.Rg1 b5 12.Qb3 Ne5=+; (C4) 9.g4 Bg6 10.Rc1 Rc8 11.a3 Bd6 12.Bg2 Ngf6=+; (D) 8...Ne7 (D1) 9.Rc1 a5 10.g4 Bg6 11.Ne5 Nc6 12.Ng6 ab4=+; (D2) 9.a3 Nc6 10.Qb5 Bf3 11.gf3 a5 12.Qb7 Nde5=+; (D3) 9.g4 Bg6 10.Ne5 Nc6 11.Ng6 hg6 12.b5 Nce5=+; (D4) 9.Rb1 a6 10.Rc1 Nc6 11.g4 Bg6 12.a3 Nb6=+; (D5) 9.Ne5 a5 10.g4 Bg6 11.Rc1 Nc6 12.Ng6 ab4=+; (E) 8...Bf3 9.ef3 Ngf6 10.Rc1 Be7 11.Be2 0–0 12.a3 a5=+.

8.Qb3 a6 (A) 9.Rc1 Rc8 10.g4 Bg6 11.Bg2 Bd6 12.0–0 Ne7=+; (B) 9.a3 Bf3 10.gf3 Ngf6 11.Rc1 Bd6 12.Rg1 0–0=+; (C) 9.e4 Ndf6 10.e5 Nd7 11.g4 Bg6 12.Rc1 Ne7=; (D) 9.Nd4 Rc8 10.e3 Ngf6 11.Rc1 Bd6 12.d3 0–0=+; (E) 9.g4 Bg6 10.a3 Ngf6 11.Nh4 Bd6 12.Bg2 Be4=.

8.Qb3 Rc8 (A) 9.Rc1 Bf3 10.ef3 Ngf6 11.Qa4 a6 12.b5 Nb6=+; (B) 9.g4 Bg6 10.Qa4 a6 11.Rc1 Bd6 12.d3 Ne7=+; (C) 9.Qa4 a6 10.e3 Bf3 11.gf3 Ne7 12.b5 Nb6=+; (D) 9.a3 Ngf6 10.g4 Bg6 11.Qa4 a6 12.g5 Ne4=+; (E) 9.e4 Qb6 10.ed5 Bf3 11.gf3 e5 12.Rg1 Ngf6=.

8.Qb3 Ne7 (A) 9.Rc1 Nc6 10.a3 Rc8 11.g4 Bg6 12.Bg2 Be7=+; (B) 9.a3 Bf3 10.ef3 Nc6 11.Rc1 Be7 12.b5 Nd4=+; (C) 9.Nb5 Nc6 10.a3 a5 11.Nbd4 Nd4 12.Nd4 ab4=+; (D) 9.Qa4 Nc6 10.b5 Nb6 11.Qd1 Na5 12.Na4 Nbc4=+; (E) 9.g4 Bg6 10.Nh4 Rc8 11.Ng6 Ng6 12.e4 de4=.

8.Qb3 Bf3 (A) 9.ef3 Ngf6 10.Rc1 Rc8 11.Bd3 a6 12.Bc2 Bd6=+; (B) 9.gf3 Ne7 10.Rg1 Rc8 11.a3 Nc6 12.Rc1 Nde5=.

8.Qb3 Ngf6 (A) 9.Rc1 Bf3 10.ef3 Rc8 11.Qa4 a6 12.b5 ab5=+; (B) 9.e3 Bf3 10.gf3 Be7 11.Rc1 Rc8 12.d4 0–0=+; (C) 9.a3 Rc8 10.g4 Bg6 11.Qa4 a6 12.Bg2 Bd6=+; (D) 9.Qa4 a5 10.b5 Nb6 11.Qc2 Rc8 12.Qb3 Nc4–/+; (E) 9.g4 Bg6 10.Rc1 Rc8 11.Bg2 h5 12.g5 Ne4=.

8.Qb3 Nh6 (A) 9.Rc1 Bf3 10.ef3 Rc8 11.Qa4 a6 12.b5 Nb6=+; (B) 9.Rg1 Bf3 10.gf3 Nf5 11.Nd1 Qb6 12.Ne3 Ne3=+; (C) 9.g4 Bg6 10.Nb5 Qb6 11.a4 a6 12.Bd4 Qc6=; (D) 9.e3 Bf3 10.gf3 Nf5 11.Bd3 Nh4 12.f4 Qb6=+; (E) 9.e4 de4 10.Ne4 Rc8 11.Ne5 a6 12.b5 Ne5=.

8.Rc1 a6 (A) 9.g4 Bg6 10.a3 Rc8 11.Bg2 Ngf6 12.d3 Bd6=; (B) 9.Qa4 Bf3 10.ef3 Ngf6 11.Be2 Bd6 12.0–0 0–0=+; (C) 9.a3 Rc8 10.g4 Bg6 11.Bg2 Ngf6 12.Nh4 Bd6=; (D) 9.e3 Ngf6 10.b5 Bf3 11.Qf3 Ne5 12.Qf4 Bd6=.

8.Rc1 Qb6 9.a3 Rc8 10.e3 Ne7 11.Be2 a5 12.b5 Bf3 =.

8.Rc1 Nb6 (A) 9.Qb3 Rc8 10.e3 Bf3 11.gf3 Nc4 12.Rg1 Ne7=; (B) 9.Nb5 Nc4 10.Bd4 a6 11.Nc3 Bf3 12.ef3 Ne7=; (C) 9.a3 Nc4 10.Qa4 Qd7 11.Nb5 Ke7 12.Bd4 a6=; (D) 9.g4 Bg6 10.Nb5 Nc4 11.Bd4 a6 12.Nc3 Ne7=.

8.Rc1 Rc8 9.a3 Ngf6 10.e3 Be7 11.Be2 0–0 12.0–0 a5 13.b5 Nc5 14.Na4 Nfd7 15.d4 Na4 16.Qa4 Nb6 17.Qa5+/– Ra8 18.Qd2 Ba3 19.Ba3 Ra3 20.Ne5 Be2= 21.Qe2 f6 22.Nd3 Nc4 23.Nc5 Qe7 24.e4 Qf7 25.Rfe1 b6 26.Nd3 Nd6 27.ed5 ed5 28.Nf4 Ra5 29.Qe6 Qe6 30.Re6 Nb5= 31.Rb6 Nd4 32.Rb7 Nb5 33.Ne6 Rfa8 34.Rg7+= Kh8 35.Rd7 Re8 36.Nc7 Rc8 37.Rd5–+ Rc7 38.Rc7?? Ra1 39.Kh2 Nc7 40.Rd8 Kg7 41.Rd7 Kg6 42.Rc7 h5 43.Rc4 Ra2 44.Kg3 Ra3 45.Kh4 Ra2+= 46.Rf4 Rb2 47.Kg3 Rb3 48.Rf3 Rb4 49.Rd3 Kg5 50.Rd5 Kg6 51.f4 Rb3 52.Kh4 Rb4 53.g3+– Rb3 54.Rh5 Rg3?? 55.f5 (55...Kf7 56.Kg3+–) 1–0. Dutschak,Hauke – Jacoby,Florian, FRG–chT U18 Germany, 1989.

8.Rc1 Ne7 (A) 9.e3 Nc6 10.a3 Rc8 11.d3 Nde5 12.Be2 Nf3=; (B) 9.a3 a5 10.Qa4 Bf3 11.ef3 Nc6 12.b5 Nb6=+; (C) 9.Qa4 a6 10.g4 Bg6 11.Nh4 b5 12.Qd1 Ne5=+; (D) 9.Nd4 Nb6 10.Ncb5 Nc4 11.Qa4 Nc6 12.Nc6 bc6=; (E) 9.g4 Bg6 10.Bg2 Rc8 11.Nb5 Qb6 12.Rc8 Nc8=.

8.Rc1 Bf3!? (A) 9.ef3 a6 10.a3 Ngf6 11.Bd3 Bd6 12.Qe2 0–0=+; (B) 9.gf3 Rc8 10.Nb5 Ngf6 11.Rc8 Qc8 12.a3 a6=.

8.g4 Bg6 (A) 9.Rc1 a6 10.a3 Ngf6 11.Nh4 Bd6 12.Ng6 hg6=; (B) 9.a3 a5 10.b5 Rc8 11.Rc1 Ngf6 12.Nh4 Nb6=; (C) 9.Bg2 h5 10.a3 a5 11.b5 hg4 12.hg4 Rh1–/+; (D) 9.Nb5 f6 10.Rc1 Rc8 11.Rc8 Qc8 12.Na7 Qc4=.

6.g4 Bg6

7.Bg2 Nf6

8.Qa4 Nc6 (A) 9.b5 Nb8 10.d3 Nbd7 11.Bf6 ef6 12.Nc3 Nb6=+; (B) 9.Nf3 e6 10.Ne5 Nd7 11.Ng6 hg6 12.b5 Nce5=.

8.Nf3 a6 (A) 9.Ne5 Qd6 10.Ng6 hg6 11.a3 Ng4 12.Nc3 Nf6=+; (B) 9.d3 e6 10.a3 Bd6 11.h4 h6 12.Ne5 Be5=; (C) 9.a3 Nbd7 10.Nc3 e6 11.d3 Bd6 12.Rc1 Rc8=.

8.Nf3 Qb6 (A) 9.a3 e6 10.Bd4 Qd8 11.Qa4 Nbd7 12.Nc3 a5=; (B) 9.Qa4 Nfd7 10.Ne5 e6 11.a3 Nc6 12.Nd7 Kd7=.

8.Nf3 Nc6 (A) 9.Qa4 Nd7 10.b5 Nc5 11.Qa3 e6 12.bc6 Nd3=+; (B) 9.a3 Qb6 10.Bf6 gf6 11.Nc3 e6 12.Rc1 a5=; (C) 9.Ne5 Ne5 10.Be5 e6 11.a3 a5 12.ba5 Ra5=+; (D) 9.Nd4 Rc8 10.Nc6 Rc6 11.d3 e6 12.Qa4 a6=+; (E) 9.g5 Nh5 10.b5 Nb4 11.d3 Qa5 12.Nc3 Nf4+=.

8.Nf3 Qd6 (A) 9.Qa4 Qd7 10.b5 Qd8 11.d3 Nbd7 12.g5 Nh5=; (B) 9.Nh4 Be4 10.Be4 Ne4 11.a3 Qb6 12.e3 Nc6=; (C) 9.a3 e6 10.Bf6 gf6 11.Nc3 Nc6 12.Rc1 a5=.

8.Nf3 Nbd7 9.d3 e6 10.a3 h6 11.0–0 Be7 12.Nc3 0–0 13.Nd4 a5 14.ba5 Qa5 15.a4 Rfc8 16.Nb3 Qd8 17.Nb5 h5 18.g5= Ne8 19.e4 Bg5 20.f4 Bf6–/+ 21.N3d4 de4 22.de4 e5 23.f5 ed4 24.fg6= fg6 25.Bd4 Ne5 26.Qb3 Kh7 27.Rad1 Qe7 28.Kh1 Nc7 29.Nc3 Ne6=+ 30.Nd5 Nd4 31.Rd4 Qc5 32.Rb4 Rf8 33.Rb7 Bg5 34.Rg1 Qf2 35.Qc3 Rae8? 36.Rf1+– Qd2 37.Qd2 Bd2? 38.Nf6+– Rf6 39.Rf6 Ra8 40.Rf2 Bc3 41.Rc2 Be1 42.Rb1 (42...Bg3 43.Rc3+–) 1–0. Campora,Daniel Hugo (2560) – Alvarez Ibarra,Rafael (2430), Canete, 1994.

8.Nf3 Nfd7 (A) 9.Nc3 e6 10.Rc1 Bb4 11.Nb5 Nc6 12.Bg7 Rg8=; (B) 9.Nh4 e6 10.Ng6 hg6 11.a3 Nc6 12.Nc3 Rc8=; (C) 9.d3 f6 10.a3 e5 11.Nh4 Bf7 12.Nc3 Nb6=; (D) 9.Qa4 Nc6 10.b5 Nc5 11.Qa3 e6 12.bc6 Nd3=+; (E) 9.a3 a5 10.ba5 Ra5 11.Nh4 e6 12.Ng6 hg6=.

8.Nf3 e6 (A) 9.a3 Nbd7 10.Nc3 a5 11.b5 Bd6 12.Nh4 Be4=+; (B) 9.Qa4 Nbd7 10.Bc3 Bd6 11.g5 Nh5 12.Be5 b5–+; (C) 9.Ne5= Be7 10.Qa4 Nbd7 11.Ng6 hg6 12.Nc3 a5=+.

8.Bf6 (A) 8...ef6 (A1) 9.Nc3 Bb4 10.Nd5 Bc5 11.Rc1 Nd7 12.d4 Bd6+=; (A2) 9.f4 f5 10.Qb3 Qh4 11.Kd1 Qf6 12.Nc3 Nc6+=; (A3) 9.Qa4 Nc6 10.a3 a5 11.b5 Ne7 12.Nc3 b6=; (A4) 9.a3 Nc6 10.Qa4 Rc8 11.Nc3 d4 12.Nd5 Bd6=; (A5) 9.b5 Qd7 10.Qb3 Be4 11.Be4 de4 12.Nc3 h5+=; (B) 8...gf6 9.Qa4 Nc6 10.b5 Na5 11.f4 Rg8 12.Nc3 e6=.

8.g5 (A) 8...Ne4 (A1) 9.Qa4 Nc6 10.d3 e5 11.de4 Bb4 12.Kf1 Be4+=; (A2) 9.d3 Ng5 10.Qa4 Nc6= 11.b5 Nb8 12.Qb3 Ne6+=; (B) 8...Nh5 9.Qa4 Nc6 10.b5 Nb8 11.Nf3 e6 12.Qg4 Bd6=+.

4.c4 e6

5.a3 dc4 6.Qa4 (6.Qc1 Qd5+=) 6...c6–/+ 7.b5 a6 8.bc6 b5 (8...bc6?! 9.Qc4 Ne7 10.Nc3=) 9.Qc2 Nc6 10.g4 Bg6 11.d3 (11.Qc3 Nf6 12.Bg2 Rc8–+) 11...Nd4 12.Bd4 (12.Qc3 Nb3 13.Bg2 Rc8–+ (13...Na1?! 14.Bc6 Ke7 15.Qb4 Qd6 16.Qd6 Kd6 17.Ba8–/+)) 12...Qd4 13.Qc3 Bc5 14.Qd4 Bd4 15.Ra2 cd3 16.ed3 Rc8 17.Nf3 Bb6 18.Ne5? (18.Kd1–+) 18...Rc1 19.Kd2 Rb1 20.Rc2 (20.Kc2 Re1 21.Nf3 Re4 (21...Bf2?! 22.Ne1 Be1 23.Bg2–+) 22.de4 Be4 23.Kc1 Bf3–+) 20...Ne7 21.Nc6 (21.Bg2 Rb3 22.Bc6 Kd8–+) 21...Bf2 (21...Ra1 22.Ne5–+) 22.Ne7 Ke7 23.Rc7 Kd6 24.Rh2 Bg3 (24...Bg3 25.Ra7 Bh2–+) 0–1. saliamichenko – marekt (2020), gameknot.com, 2014.

5.Qa4 Nc6 (A) 6.e3 (A1) 6...Nf6 7.cd5 (7.c5 Nd7 8.d4 Bg6 9.b5 Ne7 10.Nf3=; 7.b5 Nb8 8.Ne2 Nbd7 9.Nf4 Nb6 10.Qc2=) 7...Nd5 8.Ba6 Qb8 9.Bb5 Ndb4 10.a3=; (A2) 6...a6 7.cd5 (7.c5 Nge7 8.Ne2 b5 9.Qb3 e5 10.d4=) 7...b5 8.Qb3 ed5 9.a3 Bg6 10.Ne2=; (A3) 6...Nge7 7.Ne2 (7.c5 Bg6 8.Nf3 a5 9.b5 Nb4 10.Na3=; 7.d4 dc4 8.b5 Nb8 9.Qc4 Nd5 10.e4=; 7.cd5 Nd5 8.Ba6 Qb8 9.Bb5 Ndb4 10.a3=; 7.a3 a6 8.c5 Qd7 9.Ne2 Bg6 10.Nbc3=) 7...Bg6 8.Nf4 a6 9.Ng6 Ng6 10.c5=; (A4) 6...Qg5 7.c5 (7.cd5 Qd5 8.a3 Nge7 9.Nc3 Qd7 10.d4+=; 7.b5 Nb4 8.b6 c6 9.cd5 Qd5 10.a3=+) 7...Nge7 8.b5 Ne5 9.b6 N7c6 10.Be5+=; (A5) 6...dc4 7.Bc4 a5 8.Qb5 Bg6 9.ba5 Ra5 10.Qb7=; (B) 6.b5 (B1) 6...Nce7 7.c5 (7.Nf3 Nc8 8.cd5 Nb6 9.Qd4 Bf3 10.gf3=; 7.e3 dc4 8.Qc4 Nd5 9.Be2 Be2 10.Ne2=; 7.g4 Bg6 8.Bg2 Nc8 9.cd5 ed5 10.d3=; 7.Na3 Nf6 8.Rc1 Nd7 9.c5 a6 10.c6=+) 7...Nc8 8.d4 Nf6 9.e3 Ne4 10.Nc3=; (B2) 6...Nb8 7.e3 (7.cd5 ed5 8.e4 Nf6 9.ed5 Qe7 10.Be2=; 7.Nf3 Nd7 8.cd5 ed5 9.Nc3 Ngf6 10.Qf4=+) 7...Nd7 8.cd5 Nb6 9.Qc2 Bg6 10.d3=; (C) 6.c5 (C1) 6...Qh4 7.d4 (7.a3 Nf6 8.g3 Qg5 9.e3 Nd7 10.g4=) 7...Nge7 8.e3 e5 9.b5 Nd8 10.g4+/–; (C2) 6...Bg6 7.Nf3 (7.a3 Nf6 8.Nf3 a5 9.b5 Nb8 10.d4=; 7.d3 Nge7 8.Nf3 b5 9.Qb3 a5 10.ba5=; 7.d4 Nf6 8.Nf3 a5 9.b5 Nb4 10.Na3=) 7...f6 8.d4 a5 9.b5 Nb4 10.Na3=; (C3) 6...a6 7.e3 (7.Nf3 Bf3 8.ef3 Nf6 9.Bd3 Be7 10.0–0=; 7.g4 Bg6 8.Nf3 Qd7 9.Bg2 b5 10.Qb3=; 7.Na3 Nf6 8.Nc2 Nd7 9.a3 e5 10.d4=; 7.d3 Nf6 8.g4 Bg6 9.Nf3 Nd7 10.a3=) 7...Bg6 8.Nf3 a5 9.Bb5 ab4 10.Bc6+=; (C4) 6...Nge7 7.e3 (7.Nf3 b5 8.Qb3 Rb8 9.a3 d4 10.e4=; 7.a3 Qd7 8.Nf3 a6 9.g4 Bg6 10.Bg2=; 7.Na3 a6 8.Nf3 b5 9.Qb3 Rb8 10.Nc2=; 7.b5 Nb8 8.Nf3 Bf3 9.ef3 Ng6 10.Qc2=) 7...Bg6 8.Nf3 a5 9.b5 Nb4 10.Na3=; C5) 6...Nf6 7.e3 (7.Nf3 Nd7 8.a3 a5 9.Qb3 e5 10.e3=+) 7...Nd7 8.d4 Bg6 9.Nf3 a5 10.ba5=; (D) 6.Nf3 (D1) 6...Bf3 7.gf3 (7.ef3 dc4 8.Bc4 a6 9.b5 ab5 10.Qb5=+; 7.b5 Bg2 8.Bg2 Nce7 9.Nc3 Nf6 10.0–0=+) 7...dc4 8.b5 Nb4 9.Rg1 Nf6 10.a3=; (D2) 6...Nge7 7.b5 (7.g4 Bg6 8.Bg2 a6 9.d3 b5 10.cb5=; 7.c5 b5 8.Qb3 Rb8 9.e3 Bf3 10.gf3=; 7.a3 Bf3 8.ef3 dc4 9.Bc4 a6 10.Qc2=+) 7...Nb8 8.Nc3 Nd7 9.cd5 Nb6 10.Qc2=; (D3) 6...dc4 7.Ne5 Nge7 8.Nc4 Nd5 9.Na5 Ndb4 10.Nb7=+; (E) 6.cd5 (E1) 6...Qd5 7.b5 (7.Nc3 Qd7 8.b5 Nb4 9.Rc1 Nf6 10.g4=; 7.a3 Nf6 8.Nc3 Qd7 9.g4 Bg6 10.Bg2=) 7...Nce7 8.Nc3 Qd8 9.g3 Nd5 10.Bg2=; (E2) 6...ed5 7.a3 (7.e3 a6 8.a3 Bg6 9.Nf3 b5 10.Qb3=; 7.Nf3 Bf3 8.gf3 a6 9.Rg1 Nf6 10.a3=; 7.b5 Nb8 8.e4 Nf6 9.ed5 Qe7 10.Be2=) 7...Nge7 8.e3 Qd7 9.Ne2 Bg6 10.Nf4 =.

5.Qa4 Qd7 (A) 6.Qd7 Nd7 (A1) 7.g4 Bg6 8.Bg2 c6 9.cd5 ed5 10.f4=+; (A2) 7.c5 Ne7 8.e3 b6 9.cb6 ab6 10.a3=+; (A3) 7.Na3 c6 8.g4 Bg6 9.Bg2 Ngf6 10.b5=+; (A4) 7.cd5 ed5 8.a3= (8.Nc3 c6 9.e4 de4 10.Ne4=+) 8...Ngf6 9.g4 Bg6 10.Nc3=+; (A5) 7.e3 Ngf6 8.a3 a5 9.c5 Be7 10.Ne2=+; (B) 6.Qb3 (B1) 6...f6 7.cd5 (7.e3 Nc6 8.cd5 Qd5 9.Qd5 ed5 10.a3=) 7...Qd5 8.Qd5 ed5 9.Nc3 Bb4 10.Nd5=; (B2) 6...Nc6 7.a3 (7.c5 Nf6 8.Nf3 Bf3 9.ef3 Be7 10.Be2=+; 7.e3 Nb4 8.a3 Nc6 9.cd5 Qd5 10.Qd5–/+; 7.cd5 ed5 8.a3 a5 9.b5 Nce7 10.e3=; 7.g4 Bg6 8.a3 Be4 9.Nf3 dc4 10.Qc4=+) 7...Nge7 8.cd5 Qd5 9.Qd5 ed5 10.e3=; (B3) 6...Ne7 7.cd5 (7.c5 a5 8.ba5 Nbc6 9.e3 Na5 10.Qb5=+; 7.Nf3 dc4 8.Qc4 Bf3 9.ef3 a6 10.a3=+; 7.a3 a5 8.cd5 ed5 9.Nf3 ab4 10.ab4=+; 7.g4 Bg6 8.Nf3 Nbc6 9.a3 Be4 10.Bg2=) 7...ed5 8.e3 Nbc6 9.Ne2 Bg6 10.Nf4=; (B4) 6...Bg6 7.cd5 (7.Nf3 dc4 8.Qc4 b5 9.Qd4 a5 10.ba5=; 7.c5 a5 8.ba5 Nc6 9.e3 Na5 10.Qb5=+; 7.a3 dc4 8.Qc4 b5 9.Qb3 a5 10.Nf3=+; 7.d3 dc4 8.Qc4 b5 9.Qb3 Na6 10.a3=+) 7...Qd5 8.Qd5 ed5 9.Nf3 Nd7 10.Nh4=; (B5) 6...dc4 7.Qc4 b5 8.Qc2 Na6 9.a3 c5 10.e4=+; (C) 6.Qc2 (C1) 6...Nc6 7.a3 (7.b5 Nb4 8.Qc1 Bg6 9.d3 dc4 10.a3=+) 7...d4 8.b5 Nd8 9.g4 Bg6 10.d3=; (C2) 6...a5 7.b5 (7.cd5 ed5 8.ba5 Bg6 9.d3 Bb4 10.Nd2=+; 7.ba5 Nc6 8.cd5 ed5 9.Nf3 f6 10.a6=+) 7...Bg6 8.d3 dc4 9.Qc4 c6 10.Nc3=; (C3) 6...f6 7.a3 (7.cd5 ed5 8.a3 a5 9.ba5 Bd6 10.e4=+; 7.Qb3 dc4 8.Qc4 e5 9.b5 Bf7 10.Qa4=+; 7.c5 Bg6 8.d3 a5 9.a3 ab4 10.ab4=+; 7.Qc3 dc4 8.Qc4 e5 9.b5 Bf7 10.Qa4=+) 7...Bg6 8.d3 a5 9.b5 c6 10.bc6=+; (C4) 6...Nf6 7.Bf6 gf6 8.cd5 ed5 9.Qb2 Rg8 10.a3=; (C5) 6...Bg6 7.Qc1 (7.Qb3 dc4 8.Qc4 b5 9.Qf4 a5 10.Qf3=+; 7.Qc3 dc4 8.Qc4 b5 9.Qg4 a5 10.Qf3=+) 7...dc4 8.Qc4 b5 9.Qg4 a5 10.Qf3=+; (D) 6.b5 (D1) 6...d4 7.g4 (7.g3 c5 8.Bg2 Bd6 9.Nf3 Nf6 10.e3=; 7.d3 c5 8.Nd2 Nf6 9.g4 Bg6 10.Bg2=; 7.Nf3 Bf3 8.gf3 e5 9.Bg2 Na6 10.Ba3=+; 7.a3 Nf6 8.g4 Bg6 9.Nf3 Be4 10.Bg2=) 7...Bg6 8.Nf3 Bc5 9.e3 Be4 10.ed4=; (D2) 6...dc4 7.e3 (7.Qc4 c6 8.e4 Bg6 9.Nc3 cb5 10.Qb5=+; 7.e4 Bg6 8.Qc4 c6 9.Qa4 a6 10.Nc3=; 7.Nc3 Nf6 8.g4 Bg6 9.Bg2 c6 10.Qc4=+; 7.Na3 a6 8.e3 Ne7 9.Nc4 f6 10.d4=) 7...Bg6 8.Nf3 Qd8 9.Ne5 Nd7 10.Qc4=; (D3) 6...f6 7.e3 (7.d4 Bg6 8.Nf3 c6 9.cd5 ed5 10.e3=; 7.cd5 ed5 8.Nc3 d4 9.Nd1 Bc5 10.Rc1=; 7.Nf3 Bd6 8.d4 Bf3 9.ef3 Ne7 10.c5=; 7.g4 Bg6 8.Bg2 Na6 9.d4 c5 10.cd5=) 7...Ne7 8.d4 c6 9.c5 Nc8 10.Nd2=; (D4) 6...Na6 7.d4 (7.cd5 ed5 8.e3 Nc5 9.Qa5 Qe7 10.Nf3=+; 7.Bd4 dc4 8.Qc4 Nb4 9.e3 c5 10.Bb2=+; 7.Qc2 Nb4 8.Qc1 Bg6 9.d3 dc4 10.a3=+) 7...Nf6 8.Nc3 Nb8 9.e3 Be7 10.Ba3=; (D5) 6...Ne7 7.g4 (7.e3 dc4 8.Nc3 a6 9.Qc4 c6 10.Qa4=+; 7.cd5 Nd5 8.e4 Nb6 9.Qc2 f6 10.a4=; 7.c5 a6 8.Nc3 Nc8 9.d4 Na7 10.e3=; 7.Nc3 d4 8.Ne4 Nc8 9.Ng3 Bg6 10.Nf3=) 7...Bg6 8.Bg2 c6 9.Nf3 f6 10.d3=.

5.Qa4 Nd7 6.cd5 (6.Qb5 (A) 6...Ngf6= 7.cd5 (7.g4 Bg6 8.Bd4 e5 9.Be3 Be4 10.f3–/+) 7...Nd5 8.a3 Rb8 9.Nc3 c6 10.Qa4=+; (B) 6...a6 7.Qb7 Rb8 8.Qa6 Rb4 9.Bc3 Rb6 10.Qa4=; (C) 6...c6 7.Qb7 Rb8 8.Qa7 Rb4 9.Bc3 Bc5 10.Qa6=+) 6...ed5 7.Qb5 Ne7 (7...Ngf6 8.Qb7 Rb8 9.Qa7 Bb4 10.Qe3 Be7 11.Qc3=+) 8.Nc3+= c6 9.Qb7 a5 (9...Rb8 10.Qa7 Rb4=) 10.a3 (10.b5 Nc5 11.Qa8 Qa8–+) 10...Bg6 (10...Rb8 11.Qa6=+) 11.e3 (better is 11.Nf3!?+=) 11...Rb8=+ 12.Qa6 ab4 13.ab4 Rb4 14.Ba3 (14.Ra2 Nc5 15.Qa3 Qd6=+) 14...Rb6 15.Qa4 Nf5 (15...Ne5 16.Bc5 Rb2 17.d4=) 16.Bf8= Nf8 17.d4 Ne6 18.Nf3 (18.Qa8 Nc7 19.Qd8 Kd8+=) 18...0–0 19.Be2 c5 20.dc5 Nc5 21.Qa3 (21.Qd1 Ne7=) 21...Ne4 (21...Nb3 22.Rb1 Ne3 23.fe3 Bb1 24.Nb1=+) 22.0–0= Nc3 (22...Re8 23.Rfd1 Nf6 24.Bc4=) 23.Qc3+= Nd6 (23...Re8 24.Rfd1=) 24.Ra5 (24.Rfc1 Re8+=) 24...Be4 (24...Rb2 25.Qb2 Qa5 26.Ra1+=) 25.Nd4 (25.Rfa1 Qb8+=) 25...Nc4 (25...Qg5!? 26.Bf3 Rc8=) 26.Bc4+/– dc4 27.Rfa1 Qc7 28.Ra7 Rb7 29.Rb7 (29.Nb5 Qc5 30.Rb7 Bb7=) 29...Qb7= (< 29...Bb7 30.Nf5 f6 31.Ra7+=) 30.f3 ½–½. Krasny,Henryk Jan – Benassi,Aspasio, corr TKM/SF/01, 2001.

5.Qb3 Nc6 6.a3 Nf6 7.cd5 Nd5 8.b5 Nb8 9.Nc3 Nc3 10.Qc3 =.

5.Qb3 d4 6.Nf3 Bf3 7.Qf3 c6 8.a3 a5 9.b5 Nf6 10.e3 =.

5.Qb3 Ne7 6.g3 a5 7.cd5 Qd5 8.Qd5 Nd5 9.b5 c6 10.Bg2 =.

5.Qb3 Bg6 6.cd5 ed5 7.Nf3 Nf6 8.Nh4 Bd6 9.Ng6 hg6 10.e3 =.

5.Nf3 Nf6 6.e3 (6.Qa4 Nbd7=) 6...c6 (6...Bb4 7.cd5 Nd5 8.a3+=) 7.c5 (7.a3 Nbd7=) 7...Nbd7 (7...a5 8.a3=) 8.d4 a5 9.b5 a4 10.Be2 cb5 11.a3 (11.Bb5? Qa5 12.Nc3 a3–+) 11...Ne4 12.Nc3 Qa5 13.Qc2 Be7 14.Bb5 Bf6 15.0–0 (15.Qa4? Qc3 16.Bc3 Ra4 17.Ba4 Nc3–+) 15...Nc3 16.Bd7 Kd7 17.Bc3 Qa6 18.e4 (18.Ne5 Be5 19.de5 Bg6+=) 18...Bg6= 19.Nd2 b6 20.Rae1 (20.Rab1 Rab8=) 20...Rhc8 21.Qb2 Rab8 (21...bc5 22.dc5 Rab8 23.Qa1=) 22.ed5= bc5 23.de6 fe6 24.Qa1 Bd3 25.dc5 Bf1 (25...Rc5? 26.Bf6 gf6 27.Qf6+–) 26.Bf6 gf6 (26...Rc5?? 27.Bd4 Rg5 28.Nf1+–) 27.Qf6 Be2 28.Qe5 h5 (28...Bd3 29.Qg7 Ke8+–) 29.Kh2+/– Rb7 (29...Bd3 30.Qg7 Ke8 31.Qf6+–) 30.Re2 Rc5 31.Qg7 Ke8 32.Qg6 Ke7 33.Re4 Qc6 (33...Rd7 34.Nf3 Qd6 35.g3+–) 34.f4 Rb6 (better is 34...Rbb5!?+/–) 35.Nf3+– Qe8 36.Qg7 Qf7 37.Qd4 Rbb5 38.Qe3 Qg8? (better is 38...Rd5 39.Ng5 Rg5 40.fg5 Qf5+–) 39.Nd4 Rb2 (39...h4 40.Nb5 (worse is 40.Re6 Kd7 41.Re7 Kd6 42.Nb5 Rb5+–) 40...Rb5 41.Ra4+–) 40.Re6 Kf7 (40...Kd7 41.Qe4 Qg2 42.Qg2 Rg2 43.Kg2 Rc3+–) 41.Ne2 Re2 (41...Rd5 42.Rc6 Qe8 43.Rf6 Kf6 44.Qe8+–) 42.Qe2 h4 43.Re7 Kf6 44.Re3 Qc8 (44...Rf5 45.Qa6 Kg7 46.Re7 Rf7+–) 45.Re8 (45.Re8 Qd7 46.Rh8+–) 1–0. samurai – marekt, ChessWorld.net, 2015.

5.Qa4 c6

6.Na3 (A) 6...dc4 7.Nc4 b5 8.Qa5 Nf6 9.Qd8 Kd8 10.Ne5=; (B) 6...Nd7 7.cd5 ed5 8.b5 c5 9.Nf3 Bf3 10.gf3=+; (C) 6...Nf6 7.c5 a5 8.Nc2 Nbd7 9.Bf6 Qf6 10.d4–/+.

6.Qb3 (A) 6...Nf6 7.e3 Bd6 8.c5 Bc7 9.Be2 Be2 10.Ne2=+; (B) 6...Nd7 7.cd5 ed5 8.Qe3 Ne7 9.Nf3 Qb6 10.Qb6=+; (C) 6...Na6 7.a3 dc4 8.Qc4 Nc7 9.Nc3 Nd5 10.Rc1=; (D) 6...dc4 7.Qc4 Nf6 8.Nc3 Nbd7 9.b5 Rc8 10.g4=+.

6.b5 (A) 6...Nf6 7.Nf3 Bf3 8.ef3 Bd6 9.bc6 Nc6 10.cd5=; (B) 6...Qh4 7.g4 Bg6 8.Nf3 Qd8 9.Ne5 Qb6 10.Ng6=; (C) 6...a6 7.Nc3 d4 8.Ne4 Bg6 9.Ng3 e5 10.Nf3=+; (D) 6...Ne7 7.cd5 Nd5 8.e4 Nb6 9.Qd4 N6d7 10.Qe3=+; (E) 6...dc4 7.e3 a6 8.Bc4 cb5 9.Bb5 Nd7 10.Bd7=+.

6.c5 (A) 6...Nf6 7.Nf3 Nbd7 8.d4 Be7 9.Nbd2 b5 10.Qa6=; (B) 6...Ne7 7.d4 b5 8.cb6 Qb6 9.e3 Nd7 10.Ne2=; (C) 6...Bg6 7.e3 Nd7 8.d4 Be7 9.Nf3 Ngf6 10.Be2=; (D) 6...Nd7 7.d4 Ngf6 8.e3 Be7 9.Bd3 Qc7 10.Ne2=+.

6.d3 (A) 6...Nf6 7.g4 Bg6 8.Bg2 dc4 9.dc4 Nbd7 10.Nd2=+; (B) 6...Na6 7.a3 Nf6 8.g4 Bg6 9.Bg2 Nc7 10.Nf3=; (C) 6...a5 7.g4 Bg6 8.b5 dc4 9.Qc4 Qd7 10.a4=; (D) 6...Nd7 7.Nf3 a5 8.b5 Nc5 9.Qc2 cb5 10.g4=+; (E) 6...dc4 7.dc4 Nd7 8.Nd2 a5 9.b5 Nc5 10.Qc2=+.

6.cd5 ed5 7.Nf3 Nd7 8.e3 Nb6 9.Qb3 Bf3 10.gf3 =+.

6.e3 (A) 6...Nf6 7.cd5 ed5 8.Be2 Bd6 9.b5 Be2 10.Ne2=+; (B) 6...Nd7 7.cd5 Nb6 8.Qb3 Qd5 9.Qd5 Nd5 10.a3=; (C) 6...dc4 7.Bc4 Nd7 8.Qb3 Ngf6 9.Ne2 Bd6 10.Nf4=+.

6.g4 Bg6 7.cd5 ed5 8.Nf3 Nd7 9.Bg2 Ngf6 10.Nh4 =+.

5.Qb3 c6

6.cd5 Qd5 7.Qa4 Qd8 8.b5 a6 9.bc6 Nc6 =+.

6.e3 Nf6 7.d4 (7.Nf3 a5 8.cd5 Nd5 9.b5 Nd7 10.Nc3 Nc5 11.Qd1 Nc3 12.Bc3 Ne4; 7.Nc3 a5 8.g4 Bg6 9.b5 Nbd7 10.Nf3 Nc5 11.Qd1 Bd3 12.Ne5 Bf1) 7...Nbd7 8.Nd2 (8.Nc3 a5 9.b5 Bb4 10.Nf3 cb5 11.cb5 Ne4 12.Rc1 0–0) 8...Bd6 (8...a5 9.ba5 Qa5 10.Bc3 Qb6 11.c5 Qb3 12.ab3 Ra1) 9.Ngf3 (9.c5 Bc7 10.Ngf3 0–0 11.Bd3 Bg6 12.0–0 Ne4) 9...0–0 (9...Ne4 10.Bd3 Nd2 11.Nd2 0–0 12.0–0 Bg6) 10.Bd3 (10.c5 Bc7 11.Bd3 Bg6 12.0–0 Ne4) 10...Re8 (10...Bg6 11.c5 Bc7 12.0–0 Ne4) 11.Ne5 (11.c5 Bc7 12.0–0 Bf3) 11...Nf8 (11...a5 12.c5 Bc7) 12.0–0 (12.c5 Bc7) 12...N6d7 (12...N8d7+=) 13.Rac1 f6 14.Nd7 Qd7 15.Rfe1 f5 16.b5 a6 17.ba6 ba6 18.Ba3 g5 19.Qa4 Ba3 20.Qa3 g4 21.h4 g3 22.fg3 Re7 23.Rb1 Rg7 24.Nf1 f4 25.ef4 (25.gf4!? Qd8 26.Rb2+–) 25...dc4+/– 26.Be4 Qd4 27.Qe3 Qf6 28.Rec1 Bg6 29.Rc4 Rc8 30.Rb6 Be4 31.Qe4 c5 32.Ra6 Rd7 33.Qe2 Qa1 34.Re6 Rd1 35.f5 Rb8 36.Rg4 Kh8 37.Qe5 Qe5 38.Re5 Rbb1 39.Rf4 c4 40.Rc5 Rbc1 41.a4 c3 42.a5 c2 43.a6 Ra1 44.Rc2 Ra6 45.g4 Ra7 46.Kh2 Kg7 47.Ng3 Nd7 48.g5 Kf7 49.Re2 Nc5 50.f6 Rc7 51.Rc4 Rdd7 52.Nf5 Nb7 53.Rce4 Kg6 54.g4 Nd6 55.Nd6 Rd6 56.Re7 Rdd7 57.Rd7 Rd7 58.Re7 Re7 59.fe7 Kf7 60.Kg3 Ke7 61.Kf4 Ke6 1–0. Nikitin,Aleksander I (2060) – Kiolbasa,Damian (1765), XX Cracovia–open B B Poland, 2010.

6.Nf3 Nf6 7.Ne5 Nbd7 8.cd5 Nd5 9.Nd7 Qd7 =+.

6.g3 Nf6 7.Bg2 Nbd7 8.Nf3 dc4 9.Qc4 Bd6 =+.

5.Qb3 Nf6

6.cd5 ed5 7.Qe3 Be7 8.Bf6 gf6 9.d4 Bg6 10.Nc3 Na6 11.a3 c5 (11...c6 12.Nf3=) 12.bc5 Nc5 13.dc5 d4 Theme: Double Attack 14.Qd2 dc3 15.Qc3 0–0 16.Rd1 (16.e3 Rc8 17.Rd1 Qc7+=) 16...Qc7= Attacks the isolani on c5 17.e3 Rfd8 18.Bd3 (18.Rd4 Bc5 19.Nf3 Qb6 20.Rd8 Rd8–+) 18...Bd3 19.Rd3 Rd3 20.Qd3 Qa5 (20...Qc5 21.Nf3+=) 21.Ke2= Rd8 22.Qe4 Bc5 23.a4 f5 24.Qf5 Rd2 25.Kf1 Rd1 26.Ke2 Qd2 27.Kf3 Be3 28.Qc8 Kg7–+29.fe3 Rf1 30.Kg3 Qd6 31.Kg4 Qg6 32.Kh4–/+ Qf6 33.Kg3+= Qe5 34.Kh4 Qe3 35.Qg4 Kf6 With the idea Rf4 (35...Kf6 36.Nf3 Rh1–+) 0–1. Mall,Stefan (1980) – Lennartz,Manfred (2560), RSS5D pro–35, 2005.

6.e3 dc4 7.Bc4 Bd6 8.Ne2 =+.

6.e3 Nc6 7.cd5 Qd5 8.Qd5 Nd5 9.a3 =.

6.e3 c6

7.c5 b6 8.d4 =+.

7.d4 dc4 8.Bc4 b5 9.Be2 =+.

7.d4 Bd6 8.Nd2= Nbd7 9.Ngf3 0–0 10.Bd3 (10.c5 Bc7=) 10...Qe7 (10...Bf3 11.gf3 Be7 12.Rg1=) 11.b5 (11.c5 Bc7=) 11...e5 (11...dc4 12.Bc4 cb5 13.Bb5=) 12.de5 (12.g4 ed4 13.Bd4 Bg6=) 12...Ne5 (12...Be5 13.Ne5 Ne5 14.Bc2=) 13.Ne5 Be5 14.cd5 cd5 (14...Bb2 15.Qb2 Nd5 16.Qc2 Ne3 17.fe3 Qe3 18.Kf1–/+) 15.0–0 (15.Rc1 Rfc8=) 15...Ne4 16.Be4+= de4 17.Ba3 Qd7 18.Ne4 Be2 19.Bf8+/– Rf8 20.Rfe1 Ba1 21.Re2 Rc8 22.Re1 Be5 23.Rd1 Qe7 24.Qd5 g6 25.a4 Rc2 26.a5 Bc7 27.Qd4 Qe5 28.Nf6 Kh8 29.Qe5 Be5 30.Nd7 Bc3 31.a6 ba6 32.ba6 Ra2 33.Rc1 Bb4 34.Rb1 Bd6= 35.e4 Ra6 36.e5 Be7 37.Rb7 Kg8 38.Nf6 Bf6= 39.ef6 Rf6 40.Ra7 h5 41.f3 (41.g3 Kg7=) ½–½. Ng,Gary (2140) – Kenney,Jason (2165), NS Closed, 2006.

7.cd5 ed5 8.Be2 Be2 9.Ne2 Bd6 =+.

7.Be2 Be2 8.Ne2 dc4 9.Qc4 Bd6 10.Nbc3 (10.d3 b5 11.Qc3 a5 12.ba5 0–0=+) 10...Nbd7=+ 11.a4 (11.f4 Nb6 12.Qb3 0–0=+) 11...Qe7 12.b5 (12.Na2 Nb6 13.Qb3 Nbd5=+) 12...Ne5 13.Qb3 Nd3 14.Kf1 0–0 15.Ba3 Ba3 16.Qa3 Qa3 (16...c5!?–/+) 17.Ra3=+ e5 18.g3 (18.a5 a6 19.bc6 bc6=+) 18...cb5 19.Nb5 Rfd8 20.Kg2 (20.f3 a6 21.Nbd4 Nb2–/+) 20...Ne4 21.f4 a6 22.Nbd4 Ndf2 23.Rf1 ed4 24.Nd4 Nh3 25.Kh3 Nd2 26.Rd1 (26.Rc1 Rac8 27.Rac3 Rc3 28.Rc3 h6=+) 26...Nc4 27.Rb3 b6 (27...Rd7 28.Rc3 b5 29.ab5 ab5 30.Rb1=+) 28.Rc1=+ Ne3 29.Nc6 Re8 30.Rb6 Nd5 (30...Re6 31.Nb8 g5 32.Rc8 Kg7 33.Re6 fe6 34.fg5=+) 31.Rb7 Re3 32.Nb8 Nf4–/+ 33.Kg4 Re8 34.Rcb1 Nd3–+ 35.R7b6 Re4 36.Kf3 Ra4 37.Nc6 Re8 38.Rb8 Kf8 39.R1b7 Ne1 40.Kf2 Ra2 41.Kf1 Nf3 42.Re8 Ke8 43.Re7 Kf8 44.Ra7 g6 45.Nb4 Rb2 46.Na6 Ra2 47.Ra8 Ke7 48.Nc7 Ra8 49.Na8 Ke6 50.Kf2 Ne5 51.Nc7 Kf5 52.Nd5 h5 53.Kg2 Kg5 54.Kh3 Kf5?? 55.Kg2 Ke4 56.Nf6 Kd3 57.Kf2?? Ng4 58.Ng4 hg4 (59.Kg1 Ke2–+) 0–1. Van Esbroeck,Dirk – Trigance,Eric, corr ICCF TT–4–90–14, 1992.

7.Be2 Be2 8.Ne2 Bd6 9.0–0 Nbd7 10.Nbc3 dc4 11.Qc4 Ne5 12.Qb3 Nd3 13.Ba3 Qe7 14.Nc1 Nb4 (14...Bb4?! 15.Bb4 Nb4 16.Rb1=) 15.Bb4 Bb4 16.Rb1 Bc3 17.Qc3 0–0 18.d4 Rfc8 19.Nd3 Ne4 20.Qb2 b6 21.Rfc1 Qd6 22.Rc2 Rc7 23.Rbc1 Rac8 24.a4 c5 25.f3 Ng3 26.Qa3 Nf5 27.dc5 bc5 28.Rc5 Rc5 29.Rc5 Rc5 30.Nc5 Qd2 31.Qd3? Qc1–+ (31...Qc1 32.Kf2 Qc5 33.Qd8 Qf8–+) 0–1. Tirado Parra,Alberto (1865) – Haddad Filho,Paulo Ibrahim (1970), Benidorm ESP, 2011.

7.Ne2 a5 8.Nf4 ab4 9.cd5 (9.a3 Bg6 10.ab4 Ra1 11.Ba1 Qb6 12.cd5 ed5=) 9...cd5 10.a3 Nc6 (10...Bg6 11.ab4 Ra1 12.Ba1=) 11.ab4= Ra1 12.Ba1 Bg6 13.b5 Na5 14.Qa2 Bd6 15.Ng6 hg6 16.Be2 Qc7 17.0–0 0–0 18.d3 Ra8 (18...Rc8 19.Bc3 b6 20.Rc1=) 19.Nd2 Bh2 20.Kh1 Bd6 21.Nf3 b6 (21...Qd7 22.Rb1=) 22.Kg1 Qd7 (22...Qc5 23.Nd4+=) 23.Qb1+= Nb7 24.Rc1 Nc5 25.Be5 Be5 26.Ne5 Qe8 27.Qb2 Ncd7 28.Nc6 Ra4 29.Bd1 Ra8 30.d4 Qf8 31.Ra1 Ra1 32.Qa1 g5 33.Be2 g6 34.g3 Kh7 35.Bd3 Kg7 36.Kg2 Qd6 37.Qa7 Qf8 38.Qa1 (38.Qa2 Kg8+=) 38...Qd6 39.Qc3 Ne4 40.Be4 de4 41.Qc4 Qd5 (41...Qf8 42.Qc2 Nf6 43.Ne5+=) 42.Qd5 ed5 43.Nb4 (43.Ne7 Nf6+=) 43...Nf6+= 44.g4 Kh6 (44...Kf8+=) 45.Kg1 (better is 45.Kh2!? Kg7 46.h4+/–) 45...Kg7 46.Kh2 Kh7 (better is 46...Kh6!? 47.Kg3 Kg7=) 47.h4!+/– Kh6 (47...gh4 48.g5 Combination) 48.hg5 Kg5 49.Kg3 Ng4 (49...Ne8 50.Nd5 Nd6 51.Nc3+/–) 50.Nd5 Nh6 51.f4 (51.Nb6?! Nf5 52.Kg2 Nd6=) 51...ef3 52.e4 f5 53.Kf3 (better is 53.e5 f4 54.Kf2+/–) 53...fe4= 54.Ke4 Nf7 55.Nb6 Nd6 56.Ke5 Nb5 57.d5 Kh6 58.Nc4 Kg7 59.Nd2 Kf7 60.Ne4 Ke7 61.Kf4 Kd7 62.Kg5 Nc7 63.d6 Ne8 64.Kg6 Nd6 65.Nd6 ½–½. Prince W – marekt, ChessWorld.net, 2015.

7.Ne2 dc4 8.Qc4 Nd5 (8...Bg6 9.Nf4=) 9.a3 Bg6 10.Nbc3 (10.e4 Nf6 11.d3 Nbd7=) 10...Nd7 (10...Nb6 11.Qb3=+) 11.Nd5= cd5 (11...ed5 12.Qc3=) 12.Qb5 Rb8 13.Nf4 Bc2 14.Rc1 (14.Nh5 a6 15.Qe2 Rg8=) 14...a6 15.Qe2 Ba4 (15...Rc8 16.d3 Bb3 17.Rc3=) 16.g4 (16.Qh5 Nf6 17.Qf3 Rc8 18.Rc8 Qc8+=) 16...Rc8 (16...Bb5 17.d3=) 17.Rc8 Qc8 18.d3 Bd6 19.Bg2 (19.Nh5 g6 20.f4 0–0=+) 19...0–0 20.0–0 Qc2 21.Qc2 Bc2 22.Rc1 Rc8 23.Bf1 Rc6 24.Ng2 f6 25.f4 Ba4 26.Ne1 Rc1 27.Bc1 Nb8 28.Bg2 Nc6 29.Kf2 b6 30.Nf3 Kf7 31.Bb2 a5 32.ba5 ba5 33.Ke2 d4 34.Nd4 Nd4 35.ed4 Bf4 36.d5 Bb3 37.de6 Ke6 38.Be4 g6 39.Bc3 a4 40.Bb4 Bd5 41.Kf3 Bc1 42.Bf8 f5 43.Bd5 Kd5 44.gf5 gf5 45.h4 h5 46.Bb4 Kd4–+ 47.Ke2 Bf4 48.Be7 Kc3 49.Bf6 Kb3–/+ 50.Kf3?? Bd6–+ 51.d4 Kc4 52.Be5 Be5 53.de5 Kd5 54.Kf4 Ke6 55.Kg5 Ke5 56.Kh5 Kf6 (57.Kh6 f4–+) 0–1. Miralles,Gilles – Van der Wiel,J, Montpellier, 1985.

6.e3 Nbd7

7.Nc3 a5 A) < 8.cd5 ab4 9.Nb5 Nd5–/+; B) 8.a3 dc4 9.Bc4 ab4 10.ab4 Ra1 11.Ba1=+.

7.Nc3 dc4 8.Bc4 Ne5 9.d4 Nc4=+ 10.Qc4 Nd5 11.a3 Nc3 12.Qc3 Be7 13.Ne2 Be2 14.Ke2 0–0 15.a4 c6 16.Ba3 Qd5 17.f3 Rfd8 18.Rhd1 Bf6 19.Bb2 Qg5 20.Rg1 Rd5 21.Qc4 Rad8 22.Bc3 Qg3 23.b5 e5 24.de5 Be5 25.bc6 Bc3 26.Qc3 bc6 27.Qe1 Qe5 28.Qc1 Rc5–+ 29.Qb1 Rb8 30.Rd1 Qh2 31.Rd4 g6 32.Qg1 Rb2 33.Kd3 Qb8 34.Qd1 Rg2 35.Ra3 Qb2 36.Rb3 Rd2 37.Qd2?? Qb3 38.Ke4 f5 39.Kf4 Qb8 40.Kg5 Qg3 41.Kf6 Qe5 42.Kg5 f4 (43.Kh4 Qg5#) 0–1. Miralles,Gilles – Condie,Mark L (2310), EU–ch U20 Groningen, 1982.

7.Nc3 c6 8.d4 a5 9.b5 c5 10.cd5 cd4 11.ed4 Nd5 12.Nd5 ed5 13.Bd3 Bb4 14.Bc3 Qe7 15.Ne2 Be2 16.Be2 0–0=+ 17.Kf1 Nf6 18.Bf3 Rac8 19.Bb4=+ ab4 20.Re1 Qd6 21.g3 Rc4 22.Kg2=+ Rd4 23.Rd1 Qc5 24.Rd4= Qd4 25.Rd1 Qc5 26.Bd5 Qb5 27.Rd4 Nd5 28.Qd5 Qd5 29.Rd5 h6 (29...Ra8 30.Rd4=) ½–½. Adam,Stefan – Assmus,Sven, corr ICCF Cup8 V003, 1990.

7.c5 a5 8.a3 A) 8...ab4 9.ab4 Ra1 10.Ba1 Bg6 11.Nf3 Be7 12.Be2; B) 8...c6 9.d4 b6 10.b5 a4 11.Qc2 Bg6 12.Qd1; C) 8...Bg6 9.Nf3 Be7 10.Be2 c6 11.0–0 ab4 12.ab4; D) 8...Be7 9.Ne2 ab4 10.ab4 Ra1 11.Ba1 Bg6 12.d3.

7.cd5N Nd5 8.a3 a5 9.Nc3 ab4 10.Nd5 ba3 11.Qb7 ed5 12.Bc3 Bg6 13.Qd5 Rb8 14.Bb5 Qe7 15.Nf3 Qe6 16.Qe6 fe6 17.Bd7 Kd7 18.Ne5 Kc8 19.Ng6 hg6 20.Kd1 Kd7 21.Kc2 Rh5 22.Rhb1 Rb1 23.Kb1 Rg5 24.g4 Rd5 25.d4 Rd6 26.Kc2 Ra6 27.f4 Kc6 28.h4 Kd5 29.Kd3 Ra4 30.Rc1 a2 31.e4 Kc6 32.Ba1 Kb6 33.Rf1 Be7 ½–½. Curlywurly (2725) – michaelbuss, ChessWorld.net, 2003.

7.c5 Be7

8.d4 0–0 9.Bd3= a6 10.Ne2 Be2 11.Be2 b6 12.0–0.

8.d4 a6 9.Nf3 0–0 10.Nbd2 b6 11.g4 Bg6 12.c6.

8.d4 c6 9.Nd2 (9.Ne2 Bg6 10.Nf4 Bf5 11.Nd2 g5 12.Nd3; 9.Bd3 b6 10.Qa4 Qc8 11.Nd2 0–0 12.Qc2). Jose Luis – hooks, ChessWorld.net, 2006.

8.d4 Ne4 9.Bd3 0–0 10.Nf3 Ndf6 11.0–0 Qe8 12.Ne5.

8.Be2 0–0 9.d4 Be2 10.Ne2 c6 11.0–0 b6 12.a3.

8.Ne2 a5 9.Nf4 ab4 10.Bf6 Nf6 11.d4 0–0 12.Bd3.

6.e3 Be7

7.Ne2= c6 8.Nf4 Bg6 9.b5 Nbd7 10.d4 0–0 11.Ng6= fg6 12.Bd3 a6 13.a4 Kh8 14.Nd2 ab5 15.ab5 Ra1 16.Ba1 Qc7 17.Nf3 Ra8 18.0–0+= Ra3 19.Qb1 Kg8 20.Bb2+/– Ra8 21.Rc1 Qd8 22.Qc2 Bd6 23.Ne5 Be5 24.de5 Ne8 25.cd5 cd5 26.Bd4 Nb6 27.Qb3 Nc8 28.Qb4 Ne7 29.Rc2 Nf5 30.b6 Kf7 31.Bc5 Qg5 32.Kh2 Ra1 33.Qg4 Qd8 34.Qf3 Kg8+/– 35.g4 Qg5? 36.Qf4 Qf4+/– 37.ef4 Nh4 38.Bb5 Nf3 39.Kg3 Ne1 40.Rc3 Kf7 41.Be3 Rb1 42.Rc7! Nc7 43.bc7 Rb5 44.c8Q Rb3 45.Qd7 Kf8 46.Qe6 Rd3 47.Qd7 d4 48.e6 de3 49.Qf7# 1–0. Nielsen,Poul Erik (2230) – Holst,Allan (2365), Aarhus Masters op, 1998.

7.Ne2 c6 8.Nf4 Bg6 9.Ng6 hg6 10.Nc3 0–0 =.

7.Ne2 c6 8.Nf4 Bg6 9.Ng6 hg6 10.d3 Nbd7 11.Nd2= Qc7 12.Be2 g5 13.cd5 cd5 14.g4 Ne5 15.Rc1+= Qb8 16.Be5 Qe5= 17.Nf3 Qd6 18.Qa4 Nd7 19.a3 0–0 20.d4 Nb6 21.Qb3=+ a5 22.0–0= ab4 23.ab4 Ra4=+ 24.b5 Rfa8 25.Ne5 Ra3–/+ 26.Qb1 Bd8 27.Qc2 Ra2 28.Qd1 Qb4 29.Rc2=+ R2a3 30.Qd2 Qd2 31.Rd2 Rc8 32.Rb1 Na4 33.Bf1 Nc3 34.Rbb2 Ba5 35.Rdc2=+ f6 36.Nd3 Kf7 37.Kg2 Ke7 38.Nc5= b6 39.Nd3 Rc4 40.Nc1= Rb4 41.Rb4 Bb4 42.Rb2 Bd6 43.Rb3 e5 44.Ra3 Ba3= 45.Nb3 Bb2 46.Bd3 Kd6 47.Kf1 e4 48.Be2 g6 49.Ke1 Ne2 ½–½. Franke,Lutz (1995) – Lindinger,Markus (2295), Bargteheide Haspa op, 2005.

7.Ne2= c6 8.Nf4 Bg6 9.Ng6 hg6 10.cd5 Qd5 11.Qd5 ed5 =.

7.Ne2= Bg6 8.Nf4 =.

5.cd5 ed5

6.Qa4 c6 +=.

6.Qb3 c6 7.a3 Nd7 8.Nf3 Ngf6 9.Nh4 Ne4 =+.

6.Nf3 Nf6 (6...Bb4?? 7.Bg7 Bf3 8.ef3+– (8.Bh8?! Be4+–); 6...c6 7.a3 Nf6 8.e3 Bd6 9.Be2 0–0=) 7.a3 (7.Qb3 Be7 8.g4 Bg6 9.Ne5 0–0=) 7...Bd6 (7...Bf3 8.ef3 Be7 9.Bd3 0–0=) 8.e3 (8.Qb3 Bf3 9.Qf3 Nbd7=) 8...0–0 9.Be2 a5 (9...Re8=) 10.b5 Nbd7 11.0–0 Qe7 12.Nc3 Nc5 13.d3 (13.Na4 Ne6=) 13...Bf3=+ 14.Bf3 Qe5 15.g3 Qf5 16.d4 Nce4 (16...Nd3 17.g4 Qg6 18.Rb1=+) 17.Bg4 (17.Bg2 Ng5 18.g4 Qe6=) 17...Qg6 18.Ne4 de4 19.Kg2 a4 20.Rc1 (20.Rb1!?=+) 20...Ng4–/+ 21.Qg4 Qg4 22.hg4 Ra5 23.Ra1 (23.b6 c6–/+) 23...Rb5–+ 24.Rfb1 Rb8 25.Bc1 Rb1 26.Rb1 b5 27.g5 (27.f3 ef3 28.Kf3 c5–+) 27...Rb6 28.Kh3 g6 0–1. TrinTragula – marekt, ChessWorld.net, 2008.

5.g4 Bg6

6.Qa4 c6 7.cd5 ed5 8.Nf3 =+.

6.Qa4 Nd7 7.Bg2 a5 8.cd5 ab4 9.Qb5= ed5 10.Qb7 Ngf6 11.Bf6 Nf6=+ 12.Qc6 Nd7 13.Bd5 Ra5 14.d4 Bd6 15.Nd2 Ra7 16.h4 h5 17.g5 Ke7 18.Rh3 Nb6 19.Nc4 Nd5 20.Qd5 Qa8 21.Re3 Kd7 22.Ne5 Kc8 23.Qa8 Ra8 24.Ng6 fg6 25.Nf3 Kd7 (26.Rb3 Rhe8+/–). Sopko,Cassio Roberto (2160) – Briao,Paulo Amilcar Goene (2195), corr ICCF EM/MLP/01, 2002.

6.cd5 ed5 7.Nf3 Nf6 8.Nc3 Nc6 9.a3 a6 10.d3 (10.d4 Bd6+=) 10...h6 0–1. jambo (1820) – marekt (2065), gameknot.com, 2014.

6.Bg2 a5 (A) 7.cd5 ed5 8.Nc3 Nf6 9.Qb3 Nc6 10.Rc1 d4 11.Nb5=; (B) 7.b5 (B1) 7...c6 8.Nc3 d4 9.Ne4 a4 10.a3 cb5 11.cb5=; (B2) 7...Nf6 8.Nc3 d4 9.Na4 Be4 10.Be4 Ne4 11.Qc2=; (B3) 7...a4 8.a3 c6 9.bc6 Nc6 10.cd5 ed5 11.Nf3=.

6.Bg2 Na6 7.a3 (A) 7...Nf6 8.cd5 ed5 9.Qb3 c6 10.Qe3 Kd7 11.g5=; (B) 7...Ne7 8.Nc3 c6 9.d3 Nc7 10.Nf3 f6 11.g5=; (C) 7...f6 8.d3 c6 9.Nd2 Bd6 10.Ngf3 Nc7 11.g5+=; (D) 7...h6 8.d3 c6 9.Nd2 Nf6 10.Ngf3 Bd6 11.Ne5+=; (E) 7...c6 8.Nf3 Nc7 9.c5 Nf6 10.Ne5 Be4 11.f3=.

6.Bg2 Na6 7.Qa4 c6 8.c5 f6 9.Nf3 Be7 10.d4 Nb8 11.Nc3=.

6.Bg2 Na6 7.b5 Nc5 8.Nf3 dc4 9.Qc1 Be4 10.Na3 a6 11.ba6 =+.

6.Bg2 Na6 7.cd5 ed5 8.a3 Nf6 9.Qb3 c6 10.Qe3 Kd7 11.g5 =.

6.Bg2 Bb4?? 7.Bg7 c6 8.cd5 cd5 9.Bh8 +–.

6.Bg2 Nc6 7.a3 (A) 7...Nf6 8.Qa4 Be4 9.Be4 de4 10.b5 Nd4 11.e3+=; (B) 7...Nge7 8.cd5 Nd5 9.d3 f6 10.Nc3 Bd6 11.Bd5=; (C) 7...Be4 8.Be4 de4 9.Nc3 f5 10.Qa4 Nf6 11.gf5=; (D) 7...dc4 8.Qa4 Nge7 9.d3 a6 10.dc4 a5 11.Qb5=.

6.Bg2 Nc6 7.Qa4 (A) 7...Be4 8.Be4 de4 9.b5 Nce7 10.Nc3 f5 11.d3+=; (B) 7...Qd6 8.a3 dc4 9.b5 Nd4 10.Bb7 Nc2 11.Kf1=; (C) 7...a5 8.Qb5 ab4 9.cd5 ed5 10.Qb7 Nge7 11.Bd5+=; (D) 7...Nf6 8.a3 Be4 9.Be4 de4 10.b5 Nb8 11.Qc2+=; (E) 7...Qd7 8.a3 dc4 9.Qb5 Nd8 10.Qc4 f6 11.Nc3=.

6.Bg2 Nc6 7.b5 (A) 7...Na5 8.cd5 ed5 9.Bc3 Nc4 10.d3 Nb6 11.Nf3=; (B) 7...Nb4 8.d3 Bd3 9.ed3 dc4 10.Be4 Nf6 11.Bc3=; (C) 7...Nb8 8.d3 c6 9.bc6 Nc6 10.Qb3 Qd7 11.cd5=; (D) 7...Nce7 8.Nf3 dc4 9.Ne5 Nd5 10.Qc1 Nge7 11.Qc4=.

6.Bg2 Nc6 7.cd5 (A) 7...ed5 8.a3 a5 9.b5 Na7 10.Qa4 c6 11.Nc3=; (B) 7...Nb4 8.Qa4 b5 9.Qb5 c6 10.dc6 Rb8 11.c7=+.

6.Bg2 c6

7.Na3 (A) 7...h5 8.gh5 Rh5 9.cd5 ed5 10.Qb3 Qe7 11.b5=+; (B) 7...Nf6 8.cd5 Nd5 9.b5 Ba3 10.Ba3 cb5 11.Qb3=+.

7.Qb3 (A) 7...Nd7 8.Nf3 dc4 9.Qc4 Nb6 10.Qb3 Qd5 11.b5=; (B) 7...Na6 8.a3 Nf6 9.Nf3 Be7 10.Ne5 Be4 11.Be4=; (C) 7...Nf6 8.Bd4 Qe7 9.Bc5 Qc7 10.Bf8 Rf8 11.Nf3=; (D) 7...h5 8.Nf3 hg4 9.hg4 Rh1 10.Bh1 Nd7 11.cd5=; (E) 7...dc4 8.Qc4 Nd7 9.b5 cb5 10.Qb5 a6 11.Qa4=+.

7.c5 (A) 7...Nf6 8.Nf3 b6 9.d4 a5 10.Qa4 Nbd7 11.Qc6=; (B) 7...b6 8.Nf3 Nf6 9.d4 a5 10.Qa4 b5 11.Qa3=+; (C) 7...Na6 8.Qa4 Nf6 9.Nf3 Be7 10.0–0 Be4 11.Nc3=; (D) 7...Nd7 8.Nf3 b6 9.cb6 Qb6 10.a3 c5 11.Qa4=+; (E) 7...a5 8.a3 Na6 9.Qb3 b6 10.d4 Rb8 11.Qc3–/+.

7.cd5 cd5 8.Nf3 Nc6 9.a3 Rc8 10.d3 Nf6 11.Nbd2 =.

7.cd5 ed5

8.a3 Nf6 9.Nf3 Bd6 10.Nh4 0–0 11.Ng6 =+.

8.Qa4 Nd7 9.Nf3 Ngf6 10.Nh4 Bd6 11.Ng6 =+.

8.Qb3 Qe7 9.Bd4 Nf6 10.a3 Nbd7 11.f4 =.

8.Bd4 Nf6 9.Qb3 Qe7 10.a3 Nbd7 11.f4 =.

8.Nf3 a5 9.b5 Ne7 10.a4 Qd6 11.Be5 Qe6 12.d4 h5 13.g5 =.

8.Nf3 Nd7 9.0–0 Ngf6 10.b5 cb5 11.Qb3 b4 12.g5 Nh5 13.Qd5 =.

8.Nf3 Be4 9.a3 Bf3 10.Bf3 Nd7 11.Qc2 Qe7 12.Bd4 Ne5 13.Bg2 =.

8.Nf3 Qe7 9.a3 a5 10.b5 Nf6 11.d3 cb5 12.Ne5 Nc6 13.Ng6 =.

8.Nf3 f6 9.a3 Bd6 10.Nd4 Be5 11.e3 Qe7 12.0–0 h5 13.f4 =.

8.Nf3 Nf6

9.a3 a5 10.ba5 Bc5 11.Ne5 0–0 12.Ng6 fg6 13.d4 =.

9.a3 Nbd7 10.Nh4 Be4 11.Be4 Ne4 12.Nf5 Ndf6 13.Qb3 =.

9.a3 Be7 10.Ne5 0–0 11.Ng6 fg6 12.Nc3 Bd6 13.b5 =.

9.Qa4 (A) 9...Nbd7 10.Qb3 Qb6 11.a3 Ne4 12.Nd4 a5 13.d3=+; (B) 9...b5 10.Qb3 Qe7 11.a3 a5 12.ba5 Ra5 13.Ne5=+; (C) 9...Qe7 10.a3 Nbd7 11.Bd4 a5 12.Nc3 b5 13.Qd1=+; (D) 9...Bd6 10.Ne5 Nbd7 11.Nd7 Kd7 12.b5 Rg8 13.Nc3=; (E) 9...Na6 10.a3 Bd6 11.Ne5 Be5 12.Be5 0–0 13.Bd4=+.

9.Qb3 (A) 9...Qe7 10.e3 Nbd7 11.Ba3 Be4 12.b5 Nc5 13.Bc5=; (B) 9...Be7 10.Ne5 0–0 11.b5 Be4 12.f3 Bb1 13.Rb1=; (C) 9...Na6 10.a3 Be7 11.Ne5 0–0 12.Ng6 fg6 13.Nc3=; (D) 9...a5 10.Qe3 Be7 11.Bf6 gf6 12.b5 cb5 13.Qb3=; (E) 9...Nbd7 10.Nh4 Qb6 11.Ng6 hg6 12.b5 Bd6 13.g5=.

9.Bc3 (A) 9...Bd6 10.d3 0–0 11.a3 Re8 12.Nh4 Nbd7 13.Ng6=+; (B) 9...Ne4 10.Bd4 a5 11.ba5 Bc5 12.Bc5 Nc5 13.0–0=+; (C) 9...Na6 10.a3 Bd6 11.d3 0–0 12.Ne5 Qe7 13.Ng6=+; (D) 9...Be7 10.a3 0–0 11.d3 Bd6 12.0–0 Re8 13.Nbd2=+; (E) 9...h5 10.gh5 Nh5 11.e3 Bd6 12.a3 Nd7 13.d3=+.

9.a3 Bd6

10.0–0 a5 11.b5 0–0 12.Nc3 Nbd7 13.d3 =+.

10.Nc3 0–0 11.Nh4 Nbd7 12.Ng6 fg6 13.0–0 =+.

10.d3 0–0 11.Nc3 Nbd7 12.Nh4 Qe7 13.Ng6 =+.

10.g5 Nh5 11.d3 0–0 12.e3 Nd7 13.0–0 –/+.

10.Nh4 0–0!?=+ 11.Ng6 fg6 12.Nc3 Nbd7 13.b5 =+.

10.Nh4 Ne4 11.Ng6+= hg6 12.Bg7 Qh4 13.Be4 Rh7 14.Bf3 Rg7 15.d4 a6 16.Nd2 Nd7 17.Rc1 f5 18.Qc2 f4 19.Bg2 Nb6 20.Qd3 0–0–0 21.0–0 Qf6 22.e4 fe3 23.fe3 Qe7 24.e4 de4 25.Ne4 Nd5 26.Nd6 Qd6 27.b5 ½–½. Zbroja,Tadeusz – Pommerel,Wim, corr 3GMM–F, 2001.

8.Nf3 Nh6

9.a3 (A) 9...a5 10.b5 f6 11.d3 Bc5 12.g5 Ng8 13.d4=; (B) 9...Nd7 10.d3 f5 11.g5 Nf7 12.h4 h5 13.0–0+=; (C) 9...a6 10.Ne5 Be4 11.Be4 de4 12.Nc4 b5 13.Na5+/–; (D) 9...f6 10.Nh4 Bf7 11.d4 a5 12.ba5 Qa5 13.Bc3=.

9.Qa4 (A) 9...f6 10.Nd4 b5 11.Qb3 Qe7 12.0–0 a5 13.Nc6+=; (B) 9...Qe7 10.Ne5 b5 11.Qb3 a5 12.Ng6 hg6 13.a4=; (C) 9...Nd7 10.Qb3 f6 11.Nh4 Be4 12.Be4 de4 13.Nc3=; (D) 9...Na6 10.a3 Nc7 11.Ne5 a5 12.Ng6 hg6 13.ba5=.

9.Qb3 Qe7 10.Bd4 f5 11.Bc5 Qe6 12.g5 Nf7 13.Nd4 =.

9.Bc3 (A) 9...f6 10.d3 (10.a3 Nd7 11.d3 Bd6 12.g5 Nf7 13.gf6=; 10.a4 Na6 11.b5 Nc7 12.bc6 bc6 13.Qc1=) 10...Nd7 11.b5 Bc5 12.Nh4 Bf7 13.d4=; (B) 9...Nd7 10.d3 (10.0–0 f5 11.gf5 Nf5 12.b5 Bd6 13.bc6=+; 10.a3 f6 11.d3 Bd6 12.g5 Nf7 13.gf6=) 10...f6 11.b5 Bc5 12.bc6 bc6 13.Nd4=; (C) 9...Na6 10.Qa4 (10.a3 Nc7 11.d3 Ne6 12.Bd2 Ng8 13.h4=+) 10...f6 11.a3 Be7 12.d3 0–0 13.Bd2=; (D) 9...Be4 10.d3 (10.e3 a5 11.ba5 Na6 12.d3 Bf3 13.Qf3=; 10.0–0 Bf3 11.Bf3 f5 12.e3 Qh4 13.Kg2=+; 10.Qb3 Qe7 11.a3 Nd7 12.Kd1 f5 13.gf5=) 10...Bf3 11.Bf3 d4 12.Bd2 Ng8 13.Qa4=; (E) 9...f5 10.g5 Nf7 11.h4 f4 12.d3 Bh5 13.Nbd2=.

9.Bd4 (A) 9...f6 10.Qb3 Bd6 11.b5 Qe7 12.Nc3 Nf7 13.Nh4=; (B) 9...Qe7 10.b5 c5 11.Be3 Ng8 12.d4 c4 13.Nc3=; (C) 9...Nd7 10.Nc3 f6 11.b5 Nb6 12.Nh4 Bf7 13.bc6=; (D) 9...f5 10.g5 Nf7 11.h4 f4 12.Nc3 Na6 13.a3=; (E) 9...Na6 10.a3 Nc7 11.Be3 Ng8 12.Ne5 Bd6 13.Ng6=+.

9.Ne5 Qd6 10.a3 Be7 11.Ng6 Qg6 12.Nc3 0–0 13.Rc1 =.

9.Rg1 (A) 9...Nd7 10.a3 f6 11.d3 a5 12.b5 Qb6 13.Nc3=; (B) 9...f6 10.a3 a5 11.b5 Qb6 12.Nc3 Bd6 13.d4=; (C) 9...Qb6 10.Qb3 Na6 11.a3 Bc5 12.e3 Bf8 13.Qc3=; (D) 9...Qe7 10.a3 a5 11.b5 Nd7 12.d3 Rc8 13.Bc3=; (E) 9...a5 10.b5 a4 11.bc6 Nc6 12.Ne5 Ne5 13.Be5=.

9.g5 Nf5 10.h4 h5 11.b5 Qb6 12.Nc3 Bc5 13.e3 =+.

6.Bg2 Nf6

7.a3 (A) 7...a5 8.b5 h5 9.cd5 ed5 10.g5 Ne4 11.h4=; (B) 7...Nc6 8.Qa4 Be4 9.Be4 de4 10.b5 Nb8 11.Qc2+=; (C) 7...h5 8.cd5 Nd5 9.Nc3 c6 10.Nd5 ed5 11.Nf3=; (D) 7...c6 8.Nf3 dc4 9.Ne5 a5 10.ba5 Bc5 11.Nc4=; (E) 7...Be7 8.d3 0–0 9.Nd2 c6 10.Ngf3 a5 11.c5=.

7.Qa4 Nc6 8.a3 Be4 9.Be4 de4 10.b5 Nb8 11.Qc2 +=.

7.Qa4 Qd7 8.b5 Qd8 9.d3 Nbd7 10.cd5 Nd5 11.Qc2 =.

7.Qb3 (A) 7...c6 8.Bd4 Qe7 9.Bc5 Qc7 10.Bf8 Rf8 11.Nf3=; (B) 7...Na6 8.Qa4 c6 9.c5 h5 10.g5 Ng8 11.Nf3+=; (C) 7...Nc6 8.a3 Be4 9.Be4 de4 10.g5 Nh5 11.Nc3=.

7.b5 c6 8.bc6 Nc6 9.cd5 Nd5 10.Nf3 Nf4 11.0–0 Ng2 12.Kg2 h5 13.d4? hg4–+ 14.hg4 Be4 15.Nbd2?? Qh4 16.Rh1 Qg4 17.Kf1 Rh1 (18.Ng1 Qg1#) 0–1. Zimmer,Georg – Borrmann,Fritz, email b4–00–01, 2000.

7.b5 (A) 7...Be4 8.Nf3 dc4 9.Nc3 Bd5 10.Qc2 Bf3 11.Bf3=; (B) 7...h5 8.Nc3 hg4 9.cd5 ed5 10.hg4 Rh1 11.Bh1–/+; (C) 7...a6 8.Qb3 Nbd7 9.g5 dc4 10.Qe3 Bc5 11.Bd4=+; (D) 7...Nbd7 8.cd5 Nd5 9.Nc3 Nc5 10.Nd5 ed5 11.Nf3=+.

7.cd5 (A) 7...ed5 8.Qb3 Qd6 9.a3 h6 10.Qe3 Be7 11.Be5=; (B) 7...Nd5 8.a3 c6 9.h4 a5 10.h5 Bb1 11.Qb1=+.

7.Bf3 (A) 7...c6 8.cd5 ed5 9.h4 h6 10.a3 a5 11.b5=+; (B) 7...a5 8.b5 Bc5 9.cd5 ed5 10.Qc1 Qd6 11.Nc3=+; (C) 7...Na6 8.a3 c6 9.cd5 ed5 10.h4 h6 11.d3=+; (D) 7...Nbd7 8.b5 a6 9.g5 Ne4 10.cd5 ed5 11.d3=+.

7.Qa4 c6

8.b5 Bc5 9.d4 Bd6 10.c5 Be7 11.Nf3 =.

8.d3 Nbd7 9.Nf3 dc4 10.dc4 a5 11.ba5 =+.

8.d3 dc4

9.dc4 a5 10.ba5 Na6–/+ 11.Bf6?? Qf6–+ 12.Bc6 Ke7 13.Bb7 Rb8 14.Ba6 Qa1 15.Qa3 Kd8 (16.Qf8 Rf8–+) 0–1. chess55555 (1640) – pierre (2035), internet, 2006.

9.dc4 a5 10.ba5 Bc5 (A) 11.Nc3 Nbd7 12.Qb3 Qa5 13.Nf3 Bf2 14.Kf2 Nc5–+; (B) 11.e3 Na6 12.Bc3 Ne4 13.Ne2 Bd6 14.Qd1 Nc3–/+; (C) 11.Qb3 Ne4 12.e3 Qa5 13.Ke2 0–0 14.Nf3 Ra6–/+; (D) 11.Nf3 0–0 12.Nc3 Ra5 13.Qb3 Ra6 14.Rd1 Qe7=+.

9.dc4 a5 10.ba5 Nbd7 (A) 11.Qb3 Qa5 12.Nd2 Bb4 13.Ngf3 Be4 14.Rd1 Nc5–/+; (B) 11.Bc3 Nc5 12.Qd1 Qd1 13.Kd1 Nce4 14.Be4 Ne4–/+; (C) 11.Nc3 Nc5 12.Qd1 Qa5 13.Kf1 Qb4 14.Qc1 Qc4–+; (D) 11.Nd2 Nc5 12.Qd1 Qa5 13.Ngf3 Nfe4 14.Rg1 Rd8–+; (E) 11.Nf3 Ra5 12.Qd1 Bc5 13.Qb3 Ra6 14.0–0 0–0=+.

9.dc4 a5 10.ba5 Ne4 (A) 11.Nf3 Nd7 12.Nbd2 Ndc5 13.Qd1 Qa5 14.Bd4 Rd8–/+; (B) 11.Bc3 Nf2 12.Rh2 Qh4 13.Nf3 Qg3 14.Kf1 Ne4–+; (C) 11.Be4 Be4 12.Nf3 Nd7 13.Nbd2 Nc5 14.Qd1 Bf3–/+.

9.dc4 a5 10.b5 Ne4 (A) 11.Bc3 Bc5 12.Be4 Be4 13.Nf3 Bf3 14.ef3 Qd3–/+; (B) 11.Be4 Be4–/+ 12.f3 Bb4 13.Kf1 Bg6 14.Bg7 Rg8=+.

7.cd5 Nd5

8.a3 a5 9.Qa4 (A) 9...Nd7 10.b5 Nc5 11.Qc4 Qd6 12.Nf3 Nf4 13.Bf1=+; (B) 9...c6 10.b5 Qb6 11.Bd5 ed5 12.Nf3 Nd7 13.Nc3=+.

8.a3 a5 9.ba5 (A) 9...Ra5 10.Nc3 c6 11.Nd5 ed5 12.Nf3 Nd7 13.d3=; (B) 9...Nd7 10.Nc3 c6 11.Nd5 ed5 12.Bc3 Nc5 13.Nf3=; (C) 9...c6 10.Nc3 Nf4 11.Be4 Ra5 12.Qb3 b6 13.Nf3=+.

8.a3 a5 9.b5 (A) 9...c6 10.bc6 Nc6 11.Nc3 Nf4 12.Bf3 Be7 13.Qa4=+; (B) 9...a4 10.d3 Qd7 11.Nc3 f6 12.Qc2 Bf7 13.Rc1=; (C) 9...Nd7 10.Nc3 Nc5 11.Nd5 ed5 12.Nf3 a4 13.Ne5=; (D) 9...Qd7 10.a4 c6 11.Nc3 Nf4 12.Bf3 Be7 13.Rc1=+.

8.a3 a5 9.Nc3 ab4 10.Nd5 ed5 11.ab4 Ra1 12.Qa1 f6 13.Qa8 Nc6 14.Qb7+= Nb4 15.Bc3 c5 16.Bb4 cb4 17.Bd5 Be7 18.Nf3 Kf8 19.0–0 Bf7 20.Bf7 Kf7 21.Qb5 Qd6 22.Qc4 Qe6 23.Qe6 Ke6 24.Nd4 Kd5 25.Nf5 Bf8 26.Ra1 g6 27.Ne3 Ke6 28.Ra8 Rg8 29.Nc2 Kf7 30.Ra7 Ke6 31.Rb7 f5 32.gf5 gf5 33.Kf1 Bd6 34.Nb4 Rc8 35.d4 h5 36.Nd3 Rc7 37.Rc7 Bc7 38.e3 Kd5 39.Ke2 Kc4 40.Nc5 Kd5 41.Kd3 1–0. Woelfelschneider,Peter – Predel, corr, 1998.

8.a3 c6

9.Qa4 (A) 9...Nd7 10.Nc3 Nf4 11.Be4 Bd6 12.Nf3 a5 13.b5=+; (B) 9...f6 10.h4 Nf4 11.Bf3 h5 12.Nh3 Nh3 13.Rh3=+; (C) 9...b5 10.Qb3 a5 11.ba5 Qa5 12.Nc3 f6 13.Nd5=+; (D) 9...a5 10.b5 Qb6 11.Bd5 ed5 12.Nf3 Nd7 13.Nc3=+; (E) 9...h5 10.gh5 Rh5 11.Bf3 Rh4 12.d3 Nf4 13.Qc2=+.

9.Qb3 (A) 9...Nd7 10.h4 a5 11.h5 Bb1 12.Rb1 ab4 13.h6=; (B) 9...f6 10.Nc3 Nf4 11.Be4 Be4 12.Ne4 a5 13.ba5=+; (C) 9...a5 10.ba5 Ra5 11.Nc3 Nf4 12.Be4 b6 13.Nf3=+; (D) 9...Na6 10.h4 h5 11.g5 Rg8 12.Nh3 Bd6 13.e4=; (E) 9...Nf4 10.Bf3 Nd7 11.Bd4 e5 12.Be3 e4 13.Bf4–/+.

9.Qc1 (A) 9...Nf4 10.Bf3 Nd7 11.h4 h5 12.g5 e5 13.Nh3=+; (B) 9...f6 10.d3 Bd6 11.Nc3 0–0 12.Nd5 ed5 13.Nf3=+; (C) 9...a5 10.b5 Qb6 11.Nc3 Nc3 12.Qc3 Qb5 13.Nf3=+.

9.Nc3 (A) 9...a5 10.Nd5 ed5 11.Nf3 ab4 12.ab4 Na6 13.b5=; (B) 9...f6 10.Nd5 ed5 11.Nf3 a5 12.ba5 Ra5 13.Nh4=; (C) 9...Nf4 10.Bf3 Nd7 11.Ne4 a5 12.Nc5 Bc5 13.bc5=+.

9.d3 (A) 9...a5 10.b5 cb5 11.Nc3 b4 12.Nd5 ed5 13.Qb3=+; (B) 9...f6 10.Nc3 Nf4 11.Be4 Be4 12.Ne4 a5 13.ba5=+; (C) 9...Nf4 10.Bf3 Bd3 11.Bc1 Bb1 12.Qd8 Kd8 13.Bf4=+.

9.Bd5 (A) 9...cd5 10.Nf3 Nd7 11.d3 a5 12.ba5 Qa5 13.Qd2=+; (B) 9...ed5 10.Nf3 f6 11.Nh4 Be4 12.f3 Bd6 13.0–0=+.

9.e3 (A) 9...Nd7 10.Ne2 a5 11.ba5 Ra5 12.Bd5 Rd5 13.Nf4=+; (B) 9...f6 10.Ne2 Bd6 11.e4 Nb6 12.d4 0–0 13.0–0=+; (C) 9...a5 10.Nc3 ab4 11.Nd5 ed5 12.ab4 Na6 13.b5–/+.

9.Bf3 (A) 9...f6 10.Nc3 a5 11.b5 Qb6 12.Qb3 Bc5 13.e3=+; (B) 9...Nd7 10.Nc3 N7b6 11.d3 Nc3 12.Bc3 f6 13.Bd2=; (C) 9...Qb6 10.h4 h5 11.gh5 Bb1 12.Rb1 Nd7 13.Nh3=; (D) 9...Qd7 10.d3 a5 11.ba5 Ra5 12.h4 h5 13.g5=; (E) 9...a5 10.b5 Qb6 11.Nc3 Nc3 12.Bc3 Qb5 13.h4=+.

9.Nf3 (A) 9...a5 10.ba5 Nf4 11.Rh2 Be4 12.Qb3 Ra5 13.Qe3=+; (B) 9...f6 10.Nh4 Bf7 11.Nc3 Nf4 12.Be4 Bd6 13.Ng2=; (C) 9...Nf4 10.Bf1 Be4 11.e3 Nd3 12.Bd3 Bd3 13.Ne5=+; (D) 9...Nd7 10.d3 a5 11.ba5 Qa5 12.Nbd2 Nf4 13.0–0=+.

9.h4 (A) 9...a5 10.h5 Bb1 11.Qb1 Qg5 12.Bf3 ab4 13.Nh3=; (B) 9...Nf4 10.Bf3 h5 11.g5 a5 12.Nh3 Nh3 13.Rh3=+; (C) 9...h5 10.g5 a5 11.ba5 Qa5 12.Nf3 Nf4 13.Bf1=+.

4.c4 Nf6

5.Qa4 c6 (A) 6.cd5 Nd5 7.e4 Nf6 8.b5 a6 9.Nc3 e5=+; (B) 6.b5 e6 7.g4 Bg6 8.Bg2 a6 9.Nc3 cb5=+; (C) 6.Bf6 ef6 7.cd5 Qd5 8.Nc3 Qd6 9.b5 a6=.

5.Qa4 Qd7 (A) 6.b5 a6 7.cd5 Nd5 8.e4 Nb6 9.Qd4 e6=; (B) 6.Qb3 dc4 7.Qc4 c6 8.g4 Bg6 9.Nf3 Qd5=; (C) 6.Qd7 Nbd7 7.g4 Bg6 8.g5 Ne4 9.cd5 Ng5=.

5.Qb3 dc4 6.Qc4 Bg6 7.Nf3 Nbd7 8.Ne5 Ne5 9.Be5 c6 =+.

5.Qb3 c6 (A) 6.c5 b6 7.Qa4 a5 8.Nf3 b5 9.Qa3 Bf3–/+; (B) 6.b5 Nbd7 7.Nf3 e6 8.Ne5 Nc5 9.Qd1 Nfd7=+; (C) 6.Nf3 Bf3 7.ef3 e6 8.cd5 Qd5 9.Bc4 Qg5=+; (D) 6.Na3 e6 7.Nf3 Bf3 8.gf3 Nbd7 9.Rg1 Rg8=+; (E) 6.cd5 cd5 7.Bf6 gf6 8.Nc3 e6 9.Rc1 Nc6=.

5.Qb3 Nc6 (A) 6.Qa4 e6 7.b5 Nb8 8.g4 Bg6 9.cd5 ed5=+; (B) 6.a3 e5 7.cd5 Nd5 8.e4 Nf4 9.Nf3 Bf3=+; (C) 6.g4 Bg6 7.Nf3 e6 8.a3 Be4 9.Bg2 Bd6=; (D) 6.Nf3 a6 7.Ne5 Ne5 8.Be5 e6 9.e3 dc4=+; (E) 6.cd5 Qd5 7.Qd5 Nd5 8.a3 e5 9.e3 Bd6=.

5.Qb3 d4 6.g4 Bg6 7.Nf3 Be4 8.Bd4 Nc6 9.Bf6 ef6 =.

5.c5 Bg6 6.Nf3 a5 7.a3 ab4 8.ab4 Ra1 9.Ba1 Nc6 10.Qb3 =.

5.cd5 a5 6.Bf6 ef6 7.Qa4 Qd7 8.Qd7 Nd7 9.ba5 Ra5 +=.

5.cd5 Qd5 (A) 6.Nc3 Qd6 7.a3 e5 8.g4 Bg6 9.Bg2 Nc6=; (B) 6.Nf3 Bf3 7.gf3 e5 8.Nc3 Qe6 9.Qa4 Nbd7=; (C) 6.Qc2 Qd6 7.b5 Bg6 8.d3 a6 9.Qa4 e5=+; (D) 6.Qa4 b5 7.Qa3 e5 8.Nc3 Qb7 9.Qb3 Nc6=+; (E) 6.a3 Qd8 7.g4 Bg6 8.Bg2 c6 9.Nf3 e6=.

5.Nf3 dc4+= 6.e3 e6 (6...b5 7.a4 c6 8.ab5 cb5 9.Nc3+=) 7.Bc4 Bd6 8.g4 Bg6 9.g5 Ne4 (9...Nh5 10.a3+=) 10.h4 (10.Bg7 Rg8 11.Bh6 Nc6+= (worse is 11...Bb4 12.a3 Be7 13.h4=)) 10...0–0+= 11.a3 Be7 (11...Bh5 12.Be2 Be7 13.d3=) 12.Ne5 Nd6 (12...Bf5 13.d3 Nd6 14.e4+/–) 13.Ng6+= Nc4 14.Nf8 Nb2 15.Qc2 Nd3 16.Ke2 Nf4 17.ef4 Bf8 18.Qd3 Bd6 19.Qe4 Nc6 20.Nc3 Be7 21.Rh3 Nd4 22.Kd1 c5 23.Rd3 Qe8 (23...Qc8 24.Rb1 Nc6 25.h5+/–) 24.Qb7 a5 25.bc5 Rb8 26.Qc7 Rc8 (26...Bc5 27.h5 Rc8 28.Qe5+– (28.Qa5 Qc6 29.Rd4 Qf3 30.Kc1 Bd4–+)) 27.Qe5+– Nb3 28.Rb1 Nc5 29.Rd4 a4 30.Rc4 Nd7 31.Qb5 Qd8 (31...Ba3 32.Qa4 (32.Na4? Rb8–+) 32...Rc4 33.Qc4+–) 32.Rc8 (32.Rc8 Qc8 33.Qa4+–) 1–0. Woelfelschneider,Peter – Maier, 2009.

5.Bf6 ef6 (A) 6.Qa4 Nc6 7.g4 Bg6 8.Bg2 Qd7 9.b5 Nb4=+; (B) 6.cd5 Qd5 7.Nc3 Qd7 8.b5 Bd6 9.Qb3 c6=+.

5.g4 Bg6 6.Bg2 c6 7.Nf3 e6 8.c5 a5 9.a3 b6 10.d4 ab4 11.ab4 Ra1 12.Ba1 Nbd7 13.0–0 Be7 14.Nbd2 Qc7 15.Bc3 0–0 16.Qa4 h5 17.gh5 Nh5 0–1. unikum – michaelbuss, ChessWorld.net, 2004.

5.Qb3 e6

6.a3 c6 7.cd5 cd5 8.Qa4 Nbd7 9.Qb5 Qc7 =+.

6.c5 Nbd7 7.Nf3 a5 8.a3 Be7 9.Qe3 0–0 =+.

6.cd5 Qd5 7.Qd5 Nd5 8.a3 Nd7 9.Nc3 f6 =.

6.e3 dc4 7.Bc4 Bd6 8.Ne2 0–0 9.Nf4 Bf4 =+.

6.Nf3 Nbd7 7.cd5 Nd5 8.a3 a5 9.b5 Nc5 =+.

6.Nf3 Bf3=+ 7.gf3 a5 8.cd5 Nd5 9.b5 Nd7 10.Rg1 a4 11.Qd3 N7f6 12.e4 Nf4 13.Qd8 Rd8 14.Be5 Bd6 15.Bd6 cd6 16.Nc3 a3 17.d4 0–0 18.Kd2 e5 19.Ne2 N6h5 20.d5 Ne2 21.Be2 Nf4 22.h4 Ra8 23.Rac1 Ra4 24.Rc7 Rb4 25.Rgc1 Rb2 26.R1c2 h5 27.Bf1 Ng6 28.Rb2 ab2 29.Kc2 Rb8 30.f4+= Nf4 31.Kb2 f6 32.a4 (32.Rd7 g5 33.hg5 fg5 34.Rd6 h4+=) ½–½. Evans,Craig (1925) – Djoudi,Brahim (1830), IECC, 2003.

5.c5 a5

6.a3 ab4 7.ab4 Ra1 8.Ba1 =.

6.a3 Nc6 7.g4 Bg6=+ 8.b5 Na7 9.e3 h5 10.Bf6 ef6=+ 11.d4 hg4 12.Qg4 b6 13.c6 Qc8 14.Qc8 Nc8 15.Nc3 Bd6? 16.Bg2+/– Ne7 17.Nd5 Nd5 18.Bd5 Bd3 19.a4 Bb4 20.Kd1 Rh5 21.Bf3 Rf5 22.h4 Kf8 23.h5 Rd8 24.Rc1 Ke7 25.Rh3 Re8 26.Rg3 Kf8 27.Ne2+– Re7 28.Rh3 Re6 29.Ra1 (29.d5 Re7+–). Nava,E (2210) – Vinagre,J (1800), OCC–2002–05, 2002.

6.a3 Nbd7 7.Nf3 e6 8.e3 ab4 9.ab4 Ra1 =.

6.Qa4 Nbd7 7.Bf6 ef6 8.d4 ab4 9.Qb5 Rb8 –/+.

6.Qb3 e6 7.a3 Be7 8.e3 0–0 9.Be2 Be2 =+.

6.b5 e5 7.d4 ed4 8.Qd4 Qe7 9.g4 Bg6 =+.

5.c5 a6

6.a3 (A) 6...Nc6 7.g4 Bg6 8.Bg2 e5 9.Qa4 Qe7 10.g5+=; (B) 6...Nbd7 7.Nf3 e6 8.e3 Be7 9.Be2 Bf3 10.Bf3=; (C) 6...d4 7.g4 Bg6 8.Bg2 Nc6 9.Bc6 bc6 10.g5=; (D) 6...a5 7.Nf3 e6 8.e3 Be7 9.Bb5 c6 10.Be2=; (E) 6...e6 7.Nf3 Nbd7 8.g4 Bg6 9.d3 Be7 10.Bg2=.

6.a4 (A) 6...a5 7.b5 e6 8.d4 b6 9.c6 Ne4 10.Ba3=+; (B) 6...Nbd7 7.d4 a5 8.b5 e6 9.Nf3 Ne4 10.Nc3=; (C) 6...Bg6 7.Bf6 ef6 8.d4 Nc6 9.Qd2 a5 10.b5=+; (D) 6...e6 7.d4 Bg6 8.e3 Be7 9.Nf3 Nc6 10.Ba3=; (E) 6...Nc6 7.b5 Nb4 8.Qb3 a5 9.Nf3 e6 10.d4=+.

6.Qa4 (A) 6...Nc6 7.Bf6 ef6 8.e3 Be7 9.Ne2 Be2 10.Be2=; (B) 6...Nbd7 7.Bf6 ef6 8.d4 Be7 9.Nc3 c6 10.e3=; (C) 6...Qd7 7.Qa3 Nc6 8.b5 Nb8 9.e3 e6 10.Bf6=; (D) 6...Nfd7 7.a3 e6 8.Nf3 Nc6 9.g4 Bg6 10.d3=.

6.Qb3 (A) 6...Nc6 7.e3 d4 8.Be2 Bg6 9.Bf3 Be4 10.Be4=; (B) 6...e6 7.e3 Nbd7 8.Ne2 a5 9.a3 ab4 10.ab4=; (C) 6...Nbd7 7.g4 Bg6 8.g5 Nh5 9.Qd5 e6 10.Qf3=; (D) 6...b6 7.Bf6 ef6 8.d4 a5 9.Qa4 Qd7 10.Qd7=+.

6.d3 (A) 6...a5 7.a3 ab4 8.ab4 Ra1 9.Ba1 e6 10.Qa4=; (B) 6...Nc6 7.g4 Bg6 8.Nf3 Nd7 9.a3 e5 10.Bg2=; (C) 6...b6 7.Qa4 Qd7 8.Qd7 Nfd7 9.cb6 Nb6 10.a3=; (D) 6...Bg6 7.e3 Nbd7 8.Nf3 b6 9.d4 e6 10.a3=; (E) 6...e6 7.g4 Bg6 8.Nf3 b6 9.Qa4 Qd7 10.Qb3 =.

6.Nf3 a5 7.a3 Nbd7 8.g4 Bg6 9.g5 Nh5 10.d3 =.

6.Nf3 a5 7.a3 e6 8.e3 Be7 9.Be2 0–0 =.

6.Nf3 a5 7.g4 Bg6 8.a3 ab4 9.ab4 Ra1 10.Ba1 =.

6.Nf3 Nc6 7.Qa4 Bf3 8.ef3 d4 9.Bc4 e6 10.0–0 =.

6.Nf3 Nc6 7.g4 Bg6 8.Qa4 a5 9.b5 Nb8 =.

6.Nf3 Nc6 7.g4 Bg6 8.Bg2 e6 9.Nd4 Nd4 10.Bd4 =+.

6.Nf3 Nbd7 7.e3 a5 8.a3 Bf3 9.Qf3 e5 10.Be2 =.

6.Nf3 Nbd7 7.g4 Bg6 8.g5 Nh5 9.Qa4 a5 10.Ne5 =+.

6.Nf3 Nbd7 7.g4 Bg6 8.g5 Nh5 9.d3 e6 =.

6.Nf3 e6 7.e3 Be7 8.Be2 Nc6 9.g4 Bg6 10.g5 =.

6.Nf3 e6 7.g4 Bg6 8.Ne5 a5 9.a3 ab4 =.

6.Nf3 Bf3 7.Qa4 Qd7 8.Qd7 Nbd7 9.ef3 a5 10.a3 =.

6.Nf3 Bf3 7.ef3 e6 8.Be2 d4 9.a3 Nc6 =.

6.f4 (A) 6...Bg6 7.e3 Ne4 8.Ne2 e5 9.g3 ef4 10.ef4=+; (B) 6...Ne4 7.g4 Bg6 8.Nf3 e6 9.d3 Ng3 10.Rg1=; (C) 6...e6 7.g4 Bg6 8.Nf3 a5 9.a3 Be7 10.d3=+.

6.Bf6 ef6 7.Qa4 Qd7 8.Qd7 Kd7 9.Nc3 d4 10.Na4 =+.

6.Bf6 gf6 7.d4 Bg7 8.Qa4 Qd7 9.Qd7 Nd7 10.Nc3 =.

6.g3 (A) 6...e6 7.Bg2 a5 8.a3 Nc6 9.Qb3 e5 10.Nf3=; (B) 6...Nbd7 7.a3 e5 8.Nf3 Qe7 9.Bg2 Qe6 10.g4=; (C) 6...a5 7.b5 Ne4 8.d4 e6 9.Bg2 Be7 10.Nf3=; (D) 6...Qd7 7.Bf6 ef6 8.d4 Nc6 9.Nc3 Bg6 10.a3=; (E) 6...Nc6 7.Bg2 e6 8.Qa4 Be7 9.Nf3 0–0 10.g4=+.

6.g4 Bg6 7.Nf3 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1=.

5.c5 Na6

6.a3 Nb8 7.Nf3 e6 8.g4 Bg6 9.Ne5 Be7=.

6.a3 Nb8 7.Bf6 ef6 8.d4 Be7 9.Qa4 Qd7 10.Qd7 +=.

6.a3 c6 7.Nf3 Nc7 8.e3 e6 9.Be2 Bf3 10.Bf3 =.

6.a3 c6 7.Nf3 Nc7 8.g4 Bg6 9.Ne5 e6 =.

6.a3 c6 7.g4 Bg6 8.Nf3 e6 9.Ne5 Nc7 10.d3 =.

6.a3 e6 7.Nf3 c6 8.e3 Nc7 9.Be2 Bf3 10.Bf3 =.

6.Qa4 c6 7.e3 Nc7 8.Ne2 Bg6 9.Nf4 Bf5 10.Be2 =.

6.Qa4 c6 7.Nf3 Nc7 8.Ne5 Nd7 9.Nd7 Qd7 10.e3 =.

6.Qa4 c6 7.Nf3 Nc7 8.Ne5 e6 9.e3 Nd7 =.

6.Qb3 c6 7.Bf6 ef6 8.e3 Nc7 9.d4 Be7 10.Bd3 +=.

6.Qb3 Qd7 7.Bf6 gf6 8.e3 Nb8 9.d4 e6 10.Be2 +=.

6.Qb3 e6 7.e3 Nb8 8.Ne2 Bg6 9.Nf4 Nbd7 10.Ng6 =.

6.Qb3 e6 7.e4 Nb8 8.ed5 Nd5 9.Nc3 Nc3 =.

6.Qb3 e6 7.Nf3 Be7 8.Ne5 0–0 9.e3 Nb8 10.d4 =.

6.Bf6 ef6 7.Qa4 c6 8.e3 Nc7 9.Be2 Bg6 =.

6.Bf6 ef6 7.Qb3 c6 8.e3 Nc7 9.d4 Be7 10.Be2 +=.

6.Bf6 gf6 7.Qa4 c6 8.d4 Nc7 9.e3 e5 10.Be2 =.

6.Bf6 gf6 7.Qa4 c6 8.e3 Nc7 9.d4 e5 =.

5.c5 c6

6.Nf3 a5 7.a3 Bf3 8.ef3 b6 9.Be2 ab4 10.ab4 =+.

6.Nf3 a5 7.a3 Bf3 8.ef3 e6 9.Be2 Be7 =.

6.Nf3 a5 7.Qb3 Bf3 8.ef3 e6 9.a3 b6 10.Qe3 =+.

6.Nf3 b6 7.Ne5 Nfd7 8.cb6 ab6 9.Nd3 f6 =+.

6.Nf3 e6 7.a3 b6 8.d4 a5 9.e3 ab4 10.ab4 =.

6.Nf3 e6 7.g4 Bg6 8.Ne5 b6 9.d4 a5 =+.

6.Nf3 Bf3 7.ef3 e6 8.d4 b6 9.Nc3 a5 =+.

6.Nf3 Bf3 7.gf3 e6 8.Rg1 a5 9.a3 Na6 10.Qb3 =.

5.c5 Nc6

6.a3 e6 7.Qa4 Be7 8.e3 0–0 9.Ne2 Bg6 =+.

6.Qa4 a6 7.Bf6 ef6 8.e3 Be7 9.Ne2 Be2 10.Be2 =.

6.Qa4 a6 7.g4 Bg6 8.d3 e6 9.Nf3 Nd7 =+.

6.Qa4 Qd7 7.Bf6 ef6 8.e3 Be7 9.d4 0–0 10.Nc3 =.

6.Qa4 Nd7 7.b5 Ncb8 8.d4 e6 9.e3 Nf6 =.

6.Qa4 Nd7 7.b5 Nce5 8.Na3 e6 9.d4 Qh4 10.Qc2 +=.

6.Qa4 e6 7.e3 Nd7 8.d4 Bg6 9.b5 Ne7 10.Nf3 =.

6.Qa4 e6 7.Nf3 Nd7 8.Qb5 a5 9.a3 ab4 =+.

6.b5 Nb8 7.Nf3 e6 8.d4 b6 9.c6 Bb4 =.

6.b5 Nb8 7.Nf3 e6 8.d4 Be7 9.e3 0–0 10.Bd3 =.

6.d4 a6 7.Qa4 Qd7 8.e3 e6 9.b5 Na7 =.

6.d4 a6 7.Qa4 e6 8.Nf3 Bf3 9.ef3 Be7 10.Be2 =+.

6.d4 (A) 6...a6 7.Qb3 e6 8.e3 Be7 9.Ne2 Bg6 10.Nf4=; (B) 6...Bg6 7.a3 e6 8.Nf3 a6 9.e3 Be7 10.Be2=; (C) 6...Ne4 7.Qa4 e6 8.Nf3 Be7 9.Ne5 0–0 10.Nc6+=; (D) 6...Qd7 7.b5 Nd8 8.Nc3 e6 9.g4 Bg6 10.Nf3+=; (E) 6...e6 7.Nf3 Be7 8.b5 Nb8 9.e3 0–0 10.Bd3=.

6.d4 e6 7.b5 Nb8 8.Nf3 b6 9.c6 Bb4 =.

6.Nf3 e6 7.Qa4 Nd7 8.Qb5 a5 9.a3 ab4 =+.

6.Nf3 (A) 6...e6 7.Qa4 Nd7 8.d4 e5 9.Ne5 Nce5 10.de5=; (B) 6...Nb4 7.Qb3 Na6 8.Bf6 ef6 9.Qb5 c6 10.Qb7=; (C) 6...Bg6 7.a3 Be4 8.e3 a6 9.d3 Bf3 10.Qf3+=; (D) 6...Qd7 7.b5 Nd8 8.e3 Ne4 9.g4 Bg6 10.Ne5+=; (E) 6...Bf3 7.ef3 a6 8.Qa4 e5 9.Bd3 d4 10.0–0=.

5.c5 d4

6.Qa4 c6 7.Nf3 Bf3 8.ef3 e6 9.Bd3 b6 =+.

6.Qa4 c6 7.g4 Bg6 8.g5 Nfd7 9.Nf3 e5 10.Rg1 =+.

6.Nf3 Nc6 7.Qa4 Bf3 8.ef3 a6 9.Bc4 e6 =.

6.Nf3 Nc6 7.b5 Bf3 8.gf3 Nb8 9.e3 e5 10.Rg1 =.

6.Nf3 Nc6 7.g4 Bg6 8.b5 Nb4 9.d3 e5 10.a3 =.

6.Nf3 Bf3 7.ef3 a5 8.a3 ab4 9.ab4 Ra1 =.

6.Nf3 Bf3 7.ef3 a5 8.a3 Qd7 9.Bc4 e6 10.Qe2 =.

6.g4 Bg6 7.Bg2 c6 8.Nf3 Be4 9.d3 Bf3 =.

5.c5 Nbd7

6.a3 A) 6...e6 7.g4 Bg6 8.Nf3 a5 9.Bg2 ab4 10.ab4=. B) 6...a5 7.g4 Bg6 8.Nf3 e6 9.Bg2 ab4 10.ab4=; C) 6...c6 7.d4 a5 8.Nf3 ab4 9.ab4 Ra1 10.Ba1=; D) 6...Bg6 7.Nf3 e6 8.e3 a5 9.Be2 ab4 10.ab4=; E) 6...e5 7.Qb3 c6 8.Nf3 Qe7 9.d4 Bf3 10.Qf3=.

6.Qa4 a5 7.Bf6 ef6 8.d4 ab4 9.Qb5 Ra7 –/+.

6.Qa4 e6 7.d4 Be7 8.e3 a6 9.Bd3 0–0 10.Nf3 =+.

6.Qa4 e6 7.d4 Be7 8.Nf3 a5 9.b5 0–0 =+.

6.Qb3 A) 6...e5 7.g4 Bg6 8.Nf3 Be4 9.d4 ed4 10.Bd4=; B) 6...a5 7.g4 Bg6 8.g5 Ng8 9.Qd5 e6 10.Qg2=+; C) 6...Bg6 7.d4 e6 8.Nf3 Bf5 9.e3 Be7 10.Be2=; D) 6...c6 7.d4 e6 8.e3 Be7 9.Bd3 Bg6 10.Nf3=; E) 6...e6 7.e3 a5 8.a3 c6 9.d4 b6 10.b5=+.

6.Qb3 e6 7.Nf3 a5 8.a3 Be7 9.Qe3 ab4 =+.

6.Qc2 A) 6...Bg6 7.d3 e6 8.a3 Be7 9.c6 bc6 10.Qc6=+; B) 6...e6 7.e3 Be7 8.a3 0–0 9.Be2 Bg6 10.d3=+; C) 6...e5 7.Nf3 d4 8.e3 Bf3 9.gf3 a5 10.a3=; D) 6...c6 7.Nf3 Bf3 8.ef3 a5 9.a3 e6 10.Be2=; E) 6...a5 7.a3 e5 8.Nf3 Bf3 9.ef3 Be7 10.d4=+.

6.d3 a5 7.a3 ab4 8.ab4 Ra1 9.Ba1 e6 =+.

6.d3 a5 7.a3 e5 8.g4 Bg6 9.Bg2 e4 10.de4 =.

6.d4 A) 6...Bg6 7.Nf3 (7.e3 a6 8.Nf3 e6 9.Be2 Be7 10.0–0= 0.09) 7...Be4 8.Nc3 e6 9.Ne5 c6 10.f3+=; B) 6...e6 7.Nf3 (7.Nc3 Be7 8.Nf3 a5 9.b5 0–0 10.e3= –0.06; 7.Nd2 Be7 8.Qa4 a6 9.e3 0–0 10.Ngf3=+ –0.34; 7.Qa4 Be7 8.e3 0–0 9.Be2 Be2 10.Ne2=+ –0.31; 7.b5 Be7 8.Nf3 Ne4 9.Nc3 0–0 10.e3= –0.25) 7...Be7 8.e3 Ne4 9.Be2 a5 10.b5=; C) 6...a6 7.Nf3 (7.Nd2 e6 8.Ngf3 Ne4 9.e3 Nd2 10.Qd2= –0.12; 7.Nc3 e6 8.Nf3 Ne4 9.e3 Be7 10.Be2= 0.06; 7.Qa4 e6 8.e3 Be7 9.Bd3 0–0 10.Ne2= –0.25) 7...Bf3 8.ef3 e6 9.Bd3 Nh5 10.g3=; D) 6...Ne4 7.Nd2 (7.Nc3 Nc3 8.Bc3 e6 9.Nf3 Bf3 10.ef3= –0.03; 7.Nf3 e6 8.Nc3 Be7 9.e3 Bh4 10.Ne4= 0.00; 7.a3 e6 8.Nd2 Nd2 9.Qd2 Be7 10.e3= –0.06; 7.Qa4 e6 8.Nc3 Nc3 9.Bc3 Be7 10.e3= –0.09) 7...Nd2 8.Qd2 Nf6 9.e3 Qd7 10.Ne2=; E) 6...a5 7.b5 (7.ba5 Ra5 8.Nf3 e6 9.e3 b6 10.Bc3=+ –0.28) 7...e6 8.Nf3 Ne4 9.Nc3 b6 10.g4=.

6.Nf3 A) 6...a5 7.a3 e6 8.e3 ab4 9.ab4 Ra1 10.Ba1=; B) 6...e6 7.g4 Bg6 8.Bg2 Be7 9.0–0 a5 10.a3=; C) 6...Bg6 7.a3 e6 8.e3 a5 9.Be2 ab4 10.ab4=; D) 6...h6 7.d4 e6 8.e3 Ne4 9.Be2 a5 10.b5=; E) 6...Bf3 7.ef3 a5 8.a3 e6 9.Be2 c6 10.Nc3=.

6.Nf3 h6 7.Qa4 a5 8.Ne5 ab4 9.Qb5 e6 =+.

6.f4 A) 6...e6 7.g4 Ne4 8.Nf3 Be7 9.g5 Bf3 10.ef3=+; B) 6...e5 7.g4 Ne4 8.Nf3 Be7 9.Bg2 Bh4 10.Kf1=+; C) 6...Ne4 7.g4 e6 8.Nf3 Be7 9.g5 Bf3 10.ef3=+.

6.Bf6 Nf6 7.d4 Qd7 8.Nd2 0–0–0 9.Ngf3 Qe8 10.e3 =.

6.g4 Bg6 7.Bg2 e6 8.Nf3 a5 9.a3 ab4 10.ab4 =.

6.g4 Bg6 7.g5 Nh5 8.Nf3 e6 9.Rg1 Be7 =+.

5.c5 Ne4

6.a3 Nd7 7.d3 Nef6 8.g4 Bg6 9.Nf3 e6 =.

6.a3 (A) 6...Nf6 7.Qa4 c6 8.Bf6 gf6 9.e3 e5 10.Be2=; (B) 6...Nd7 7.d3 Nef6 8.g4 Bg6 9.Nf3 e6 10.Nh4=; (C) 6...a5 7.Nf3 ab4 8.ab4 Ra1 9.Ba1 e6 10.Qa4=; (D) 6...Bg6 7.Nf3 Nd7 8.d3 Nef6 9.e3 e6 10.Be2+=; (E) 6...e6 7.d3 Nf6 8.g4 Bg6 9.Bg2 Be7 10.e3=.

6.a3 Nf6 7.Nf3 a5 8.e3 e6 9.g4 Bg6 10.Ne5 =.

6.a3 Nf6 7.Nf3 e6 8.e3 a5 9.g4 Bg6 =.

6.Qa4 c6 7.d3 Nf6 8.g4 Bg6 9.Nf3 Nbd7 =.

6.d3 Nf6 7.g4 Bg6 8.Bg2 e6 9.Nf3 a5 =.

6.d3 Nf6 7.g4 Bg6 8.Bg2 e6 9.Nf3 Be7 10.Ne5 =.

6.Nf3 a5 7.a3 ab4 8.ab4 Ra1 9.Ba1 Na6 10.Qa4 =.

6.Nf3 a5 7.g4 Bg6 8.d3 Nf6 9.Qa4 c6 =.

6.Nf3 Nc6 7.g4 Bg6 8.d3 Nf6 9.a3 Nd7 =.

6.Nf3 e6 7.g4 Bg6 8.Bg2 a5 9.a3 ab4 10.ab4 =.

6.g4 Bg6 7.d3 Nf6 8.Bg2 e6 9.Nf3 a5 10.a3 =.

6.g4 Bg6 7.d3 Nf6 8.Bg2 e6 9.Nf3 Be7 =.

6.g4 Bg6 7.Nf3 a5 8.d3 Nf6 9.Qa4 c6 10.Bg2 =.

5.c5 e6

6.a3 c6 7.Nf3 b6 8.cb6 ab6 9.Ne5 Bd6 =+.

6.a3 A) 6...Nbd7 7.Nf3 Be7 8.e3 0–0 9.Be2 a5 10.0–0=; B) 6...a5 7.Nf3 Be7 8.g4 Bg6 9.Ne5 0–0 10.Bg2=+; C) 6...c6 7.Nf3 b6 8.d4 a5 9.e3 ab4 10.ab4=; D) 6...Nc6 7.Qa4 Be7 8.e3 0–0 9.Be2 Qd7 10.Bh5=; E) 6...Be7 7.Nf3 0–0 8.e3 a5 9.Be2 b6 10.cb6 =+.

6.Qa4 Qd7 7.Qb3 Be7 8.g4 Bg6 9.Nf3 Qd8 10.Ne5 =.

6.Qa4 Nbd7 7.Qb5 a5 8.a3 Bg6 9.Nc3 ab4 =+.

6.Qb3 Nbd7 7.g4 Bg6 8.Nf3 Be7 9.Bd4 a5 =+.

6.Qb3 A) 6...Be7 7.e3 0–0 8.Ne2 b6 9.cb6 ab6 10.Nf4=+; B) 6...Nbd7 7.d4 Bg6 8.e3 Be7 9.Nf3 c6 10.Be2=; C) 6...b6 7.Qa4 Qd7 8.Qd7 Nfd7 9.d4 a5 10.a3=+ –0.37; D) 6...Bg6 7.e3 Be7 8.Nf3 Nbd7 9.Be2 a5 10.a3=; E) 6...a5 7.d4 ab4 8.a3 Be7 9.ab4 Ra1 10.Ba1=+.

6.Qc2 A) 6...Be7 7.Qc3 Nbd7 8.a3 a5 9.Nf3 Bg6 10.d3=+; B) 6...Bg6 7.Qc1 a5 8.b5 Nfd7 9.d4 Be7 10.Nf3=; C) 6...Nbd7 7.a3 a5 8.e3 ab4 9.ab4 Ra1 10.Ba1=+; D) 6...Nc6 7.b5 Nb8 8.Nf3 a6 9.e3 Bg6 10.Qc1=+; E) 6...a5 7.b5 Ne4 8.d4 Bg6 9.Qc1 b6 10.Nc3=+.

6.d3 A) 6...Be7 7.g4 Bg6 8.Nf3 0–0 9.Ne5 Nc6 10.Ng6=+; B) 6...Nc6 7.Qd2 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1=+; C) 6...b6 7.Qa4 Qd7 8.Qb3 Be7 9.g4 Bg6 10.Nf3=+; D) 6...a5 7.a3 Be7 8.g4 Bg6 9.e3 h6 10.Nf3=+; E) 6...c6 7.Nd2 b6 8.Qc2 bc5 9.bc5 Nbd7 10.d4=+.

6.Nf3 a5 7.a3 Be7 8.g4 Bg6 9.Ne5 0–0 =+.

6.Nf3 A) 6...Nbd7 7.g4 Bg6 8.Bg2 a5 9.a3 ab4 10.ab4=; B) 6...Be7 7.g4 Bg6 8.Ne5 0–0 9.Bg2 a5 10.a3=+; C) 6...Bf3 7.gf3 a5 8.a3 Nc6 9.Qb3 ab4 10.ab4=+; D) 6...b6 7.Qa4 Qd7 8.Qb3 Bf3 9.Qf3 bc5 10.Bf6=; E) 6...a5 7.a3 Be7 8.g4 Bg6 9.Ne5 0–0 10.Bg2=+.

6.g3 A) 6...Be7 7.a3 0–0 8.Bg2 b6 9.cb6 ab6 10.Nf3=+; B) 6...Nc6 7.Qb3 Be7 8.Bg2 Bg6 9.d3 a5 10.b5=+; C) 6...Nbd7 7.a3 Bg6 8.Nf3 c6 9.Bg2 b6 10.d4=; D) 6...Bg6 7.Nf3 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1=+; E) 6...a5 7.g4 Bg6 8.a3 Nc6 9.Qb3 ab4 10.ab4=+.

6.g4 Bg6

7.Qa4 Nbd7 8.d4 Be7 9.Nf3 a5 10.ba5 =+.

7.e3 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 =+.

7.Nf3 a5 8.a3 Nc6 9.Qb3 ab4 =+.

7.Bg2 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 =+.

7.g5 Nfd7 8.Nf3 a5 9.a3 ab4 10.ab4 =+.

5.cd5 Nd5

6.a3 a5 7.b5 Nd7 8.Nc3 e6 9.g4 Bg6 =.

6.a3 a5 7.b5 Nd7 8.Nf3 a4 9.e4 N5f6 10.Nc3 Nc5 11.Bc4 (11.g4 Bg6 12.d3 Nfd7=) 11...Nd3 (better is 11...Nce4!? 12.g4 Bg6+=) 12.Bd3+= Qd3 13.Qe2 Qe2 14.Ke2 e6 15.Rhc1 Nd7 16.Nd1 (16.d4 Bd6+=) 16...Kd8 17.Rc4 f6 18.Rac1 Bd6 19.Ne3 Nb6 20.R4c2 Rf8 (20...Ra5 21.Rb1=) 21.Rb1 ½–½. Woelfelschneider,Peter (2325) – Boehme,Sebastian (2560), CiF, 2010.

6.a3 a6 7.Nc3 e6 8.Nd5 ed5 9.Nf3 f6 =.

6.a3 Nd7 7.g3 c6 8.Bg2 a5 9.b5 Qb6 10.bc6 bc6 11.Ra2 e5 12.Nf3 Bd6 13.d3 f6 14.Nfd2 Bc5 15.0–0 0–0 16.Nc3 Qb7 17.Nc4 N7b6 18.Ne4 Be7 19.Nb6 Qb6 20.Qc2 Rab8 21.Bc1 Rfd8 22.Rb2 Qa6 23.Re1 Rb2 24.Bb2 Rb8 25.Nd2 Be8 26.Rb1 Bd7 27.Bc1 Rb1 28.Nb1 Be6 29.Nd2 Kf7 30.Bb2 Qb5 31.e3 g6 32.Nc4 Kg7 33.Kh2 a4 34.Nd2 c5 35.Bf1 Qd7 36.Nc4 Qb5 37.Qb1 Nc3 38.Qc1 Nd5 39.Nd2 Nb6 40.d4+= c4 41.de5 fe5 42.f4 Bf6 43.Ne4 Nd7 44.Nf6 Kf6 45.fe5 Kg7 46.Bg2 Nc5 47.Bd4 Kg8 48.Qf1 Nd7 49.Qf3+/– Qa5 50.Qa8 Qa8 51.Ba8 Nb8 52.g4 Kf7 53.g5 Ke7 54.Kg3 Na6 55.Bc6 Bd7 56.Bf3 Nc7 57.Bc3 Kf7 58.Be2 Be6 59.Bd1 Bd7 60.e4 Nb5 61.Bb4 Nd4 62.h4 Nb3 63.Kf4 Be6 64.h5 Ke8 65.h6 Kd7 66.Ke3 Kc6 67.Be7 Kd7 68.Bd6 Kc6 69.Bf8 Kb5 70.Be7 Na5 71.Kd2 Nc6 72.Bd6 Na5 73.Kc3 Nb3 74.Bf8 Nc1 ½–½. ChelseaMick – AndyAndyO, ChessWorld.net, 2005.

6.a3 e5 7.Be5 a5 8.b5 Nd7 9.Bb2 c6 10.Nc3 Nc3 11.Bc3 cb5 12.Qb1 b4 13.ab4 ab4 14.Qe4 Be7 15.Bg7 Ra1 16.Ba1 Qc7 17.Bb2 Bg6 18.Qd4 Rg8 19.e3 Qc6 20.Nf3 Be4 21.Ne5 Ne5 22.Qe5 f6 23.Qh5 Bg6 24.Qd1 Bc2 25.Qe2 Kf8 26.Qc4 b3 27.h4 Qc4= 28.Bc4 Rg2 29.Ke2 Rg4 30.d3 Ke8 31.e4 Kd7 32.h5 Rg5 33.h6 Rg2 34.Rh5 Rg5 35.Rg5 fg5 36.e5 Bf8 37.Bg8 b5 38.e6 Kd6?? 39.Kd2 b4? 40.Bg7+– Be7 41.Bh7 g4 42.Kc1 Bg5 43.Kb2 Bh6 44.Bh6 Ke6 45.Bg8 Ke5 46.Bg7 Kf4 47.d4 Kf3 48.Be6 Bd3 49.Kb3 Kf2 50.Bg4 Kg3 51.Bd7 Kf4 52.d5 Bf5 53.Bf5 Kf5 54.Kc4 (54...b3 55.Kb3+–) 1–0. Woelfelschneider,Peter (1795) – Herrchen,Ralf (1845), O7–004 VCC, 2001.

6.a3 Bg6 7.Nf3 a5 8.b5 e6 9.Ne5 Qf6 =.

6.Qa4 c6 7.e4 Nf6 8.e5 Nd5 9.e6 f6 =+.

6.Qb3 e6 7.Nc3 Nc6 8.Nd5 Qd5 9.Qd5 ed5 =.

6.b5 f6 7.Nc3 e5 8.Nf3 Bc5 9.Rc1 Bf3 =.

6.Qc2 Bg6 7.Qa4 c6 8.Nc3 e5 9.Nd5 Qd5 =+.

6.a3 e6

7.Qc2 (A) 7...a5 8.b5 Bg6 9.e4 Nd7 10.d3 N5f6 11.Nf3 Rc8 12.Nbd2=; (B) 7...Nf6 (B1) 8.g3 Bd6 9.Bg2 c6 10.Nc3 0–0 11.Nf3 Nbd7 12.0–0=; (B2) 8.d3 c6 9.g4 Bg6 10.Nf3 a5 11.ba5 Ra5 12.Nbd2=; (B3) 8.g4 Bg6 9.d3 c6 10.Nf3 a5 11.ba5 Ra5 12.Bg2=.

7.Nf3 a5 8.b5 Nd7 9.e3 Rc8 10.Nc3 Nc3 11.Bc3 Nc5 12.d4 Ne4 13.Bb2 Qd5 14.Be2 Bd6 15.0–0 0–0 16.Rc1 Bf3 17.Bf3 Qb5 18.Be4 Qb2 19.Rb1 Qa3 20.Bb7 Rb8 21.Qc2 Be7 22.Rfc1 Qd6 23.Qa4 Qa3 24.Qb5 Rfd8 25.Rc7 Bd6 26.Rc2 g6 27.Rcc1 Be7 28.Rc7 Bd6 29.Rcc1 Be7 30.Rc2 Rd5 31.Qf1 Rd7 32.Ra1 Qb3 33.Be4 Ra7 34.Rc6 Qb5 35.Qc1 Bb4 36.Rb1 Qg5 37.Qc4 Qe7 38.Bf3 Qe8 39.Qc2 Bf8 40.Ra1 Qd7 41.Be4 Be7 42.Ra4 Rb4 43.Ra1 Bd6 44.Bf3 Rc7 ½–½. riverplate – michaelbuss, ChessWorld.net, 2004.

7.Nf3 c6 8.e4 Nf6 9.Nc3 Be7 10.Be2 0–0 11.0–0 a5 12.ba5 =.

7.Nf3 Nc6 (A) 8.e3 a6 9.Bc4 Nf6 10.d3 Bd6 11.g4 Bg6 12.Nc3=; (B) 8.e4 Nf6 9.Bb5 Ne4 10.Qc2 Bf3 11.gf3 Nd6 12.Bc6=; (C) 8.b5 Nb8 9.e4 Nf6 10.Nc3 a6 11.g4 Bg6 12.Qa4=.

7.Nf3 Nd7 (A) 8.Nc3 N5b6 9.e4 a5 10.b5 Bf3 11.Qf3 Ne5 12.Qg3=+; (B) 8.e4 N5f6 9.Nc3 a5 10.b5 e5 11.g4 Bg6 12.Qc2 =.

7.Nf3 Bf3 8.gf3 Rg8 9.Nc3 Nd7 10.Rg1 c6 11.Nd5 ed5 12.b5 =.

4.d3 e5

5.a3 a5 6.g4 Bg6 7.Nf3 (7.b5 f6+=) 7...f6 (7...e4 8.de4 de4 9.Qd8 Kd8 10.Ne5=) 8.c3 Bf7 9.Nbd2 Bd6 10.g5 Nd7 (10...fg5 11.Rg1+=) 11.gf6 (11.Rg1 ab4 12.ab4 Ra1 13.Qa1 h6 14.gf6 gf6=) 11...Ngf6+= 12.Rg1 0–0 13.Ng5 c6 14.Nf7 Rf7 15.h4 ab4 16.cb4 Qb6 17.e3 c5 18.Bc3 (18.Bh3!? cb4 19.a4–/+) 18...cb4 19.ab4 Ra1 (19...Rc8 20.Qb3 d4 21.Nc4 Rc4 22.Ra8 Nf8 23.dc4 dc3 24.c5+=) 20.Qa1–+ Bb4 21.Ke2 e4 22.de4 Bc3 23.Qc3 Ne4 24.Ne4 de4 25.Rg5 h6 26.Ra5 (26.Rd5 Nf6 27.Rc5 Qd6–/+) 26...Qd8–+ 27.Ke1 Qh4 28.Bc4 (28.Ra2 Kh7–+) 28...Qf2 29.Kd1 Kh7 30.Bf7 Qf7 31.Ke1 Qg6 32.Ra7 Qb6 33.Ra5 Kg6 34.Qd2 Nc5 35.Kf1 Kh7 36.Qa2 Qd8 37.Ra8 Qd1 38.Kg2 Qg4 39.Kh2 Qh5 40.Kg1 Qg5 41.Kf1 Qe3 42.Qg8 Kg6 43.Qe8 Kg5 44.Qe7 Kh5 45.Qg7 Qf4 46.Kg2 Qf3 47.Kg1 Ne6 48.Qe5 Ng5 49.Ra2 Kh4 50.Rb2 b5 51.Qd6 Nh3 52.Kh2 Qe3 53.Qf6 Qg5 54.Qg5 Ng5 55.Kg2 Kg4 56.Kf2 Nf7 57.Ke3 Nd6 58.Rf2 h5 59.Rf6–/+ Nc4 60.Ke4 h4 ½–½. Woelfelschneider,Peter – Meier, 2009.

5.b5 Bb4 6.Bc3 Bc3 7.Nc3 d4 8.Ne4 f5 9.Ng3 Bg6 10.e3 de3 11.fe3 Ne7 12.Nf3 Qd6 13.Be2? e4–+ 14.Nd4? Qg3 15.Kd2 Nd5 16.c3 f4 17.Re1 fe3 18.Kc2 Qg2 19.Kb3 Qh3 20.Bg4 Qg3 21.de4 Be4 22.Rg1 Qe5 (23.Bh5 g6–+) 0–1. Spike,Richard (1670) – Frost,Lionel (2020), Q1.1997.0.00016, 1997.

5.b5 f6 6.Nd2 =+.

5.Nd2 Nc6 6.Ngf3 Bf3 7.Nf3 Bb4 8.c3 Ba5 9.e3 Nf6 10.Be2 d4–/+ 11.ed4 ed4 12.0–0 dc3 13.Ba3 Nd5 14.Re1 c2 15.Qc1 Be1–+ 16.Qe1 Qf6 17.Bd1 Kd8 18.Bc2 Ncb4! 19.Qd1?? Nc2 20.Qc2 Qa1 21.Kh2 Qf6 22.d4 Nf4 23.Ne5 Ng6 24.Bb2 Re8 25.Nf3 Qd6 26.g3 Qd5 27.Ne5 Ne5 28.de5 Qa2 29.Bd4 Qc2 (30.h4 c5–+) 0–1. badboy1221 – laisla16, Live Game Caissa's Web, 2006.

5.Nd2 Nd7 6.a3 Ngf6 7.g4= Bg6 8.Ngf3 e4 9.Nh4 ed3 10.cd3 Nb6 11.e4 Be7 12.Bg2 de4 13.de4 Qd3? 14.e5 Nfd5+= 15.Bf1 Qc2 16.Ng6 Qg6= 17.Bg2 Nf4 18.Be4 Nd3 19.Bd3 Qd3 20.Qb3 0–0–0 21.Rd1 Qb3=+ 22.Nb3 Nc4 23.Rb1 Rd3 24.Nc1 Nb2 25.Rb2 Ra3 26.Ke2 h5 27.gh5–/+ Rh5 28.Nd3 Ra6 29.Rc2 Rah6 30.Ra1 Kb8 31.Rca2 a6 32.b5 Rh3 33.ba6 ba6 34.Ra6 Ra6 35.Ra6 c5 36.Ra4 g5 37.Rc4 Rh4 38.Rc2 c4 39.Nb2 Re4 40.Kf3 Re5 41.Nc4 Rf5 42.Kg4 Rf4 43.Kg3 f5 44.Ne5 Bd6 45.Rb2 Kc7 46.Rc2 Kb7 47.Rb2 Rb4 48.Rb4= Bb4 49.Nf7 Be7 50.f4 gf4 51.Kf4 Bc5 52.Kf5 Kc6 53.Nh8 Bd4 54.Nf7 Kd5 55.Nh8 Bh8 ½–½. Crafty 19.01 – EXchess 3.11, 2004.

5.Be5 Nc6

6.Bc3 Bb4 7.Bb4 Nb4 8.c3 Nc6 9.Nd2 Qf6 10.Qc2 Rb8 11.e3 Qd6 (11...Nge7 12.Rb1=) 12.Ne2 Nf6 13.Nf4 0–0 14.g3 Bg6 15.Bg2 Bf5 16.g4 (16.0–0 Ne5=) 16...Bg6 (16...Rfe8 17.0–0 Be6 18.Qb3=) 17.Ng6 hg6 (17...fg6 18.Rb1=) 18.0–0 (18.Rb1 Rfe8+=) 18...Rfe8 19.d4 b5 (19...Ne7 20.c4+=) 20.a4+= b4 21.Rfc1 Rec8 (21...Rb7 22.c4 Ne7 23.cd5 Ned5 24.g5+/–) 22.Rab1 a6 23.g5 Nd7 24.a5 bc3 25.Rb8 Ndb8 26.Qc3 Nb4 27.Ra1 (27.Qc5 Qc5 28.Rc5 Nd7+/–) 27...Nd7+= 28.Nb3 Nc6 29.Rd1 Na7 30.Nc5 Nb5+= 31.Qb4 Rb8 32.Rc1 Na7 33.Qc3 Nb5 34.Qc2 Na3 35.Qa4 Nb5 36.Nd3 c6+= 37.Qb4 Qe6 38.Nf4 Qe8 39.Bf1 Rc8 40.Bb5 ab5 41.Qd6 Nb8 42.Nd3 Qe6 43.Qe6+– fe6 44.Kg2 Rc7 45.Ne5 b4 46.Ng6 Ra7 47.Ra1 Na6 48.Rb1 Rc7 49.Nf4+– Kf7 50.Nd3 Kg6 51.f4 Kh7 52.Kf3 c5 53.dc5 Nc5 54.Rc1 b3 55.h4 Na6 56.Rc7 Nc7 57.h5 Na6 58.Nb2 1–0. Bergman – wiking, internet, 2010.

6.Bc3 Bb4 7.Bb4 Nb4 8.Nc3 d4 9.Rb1 Qe7 =+.

6.Bc3 Bb4 7.Bb4 Nb4 8.Qd2 c5 9.c3 Nc6 10.e3 Bg6 11.Nf3 Nge7 12.Be2 0–0 13.0–0 d4 14.a4 de3 15.fe3 Nf5 16.e4 Ng3 17.Rd1 Qf6 18.Ra2 Rad8 19.Qe3 Rfe8 20.Rad2 c4 21.Qf2 cd3 22.Bd3 Ne4 23.Be4 Be4 24.Rd8 Rd8 25.Rd8 Qd8 26.Nbd2 Bc2 27.Qe3 Ba4 28.Qe4 Bd1 29.Nd4 Nd4 30.cd4 a5 31.d5 b5 32.d6 Qd6 33.Qe8 Qf8 34.Qb5 a4 35.Qb1 Qc5 36.Kh2 Qc7 37.Kg1 Bc2 38.Qa2 h6 39.Nc4 Bb3 (40.Qa3 Qa7 41.Kh2 Bc4–+) 0–1. bonaparte (2155) – pierred (2595), net–chess.com, 2008.

6.Bc3 Bb4 7.Bb4 Nb4 8.Nd2 Qe7 9.g4 Bg6 10.Bg2 0–0–0 11.Ngf3 Nf6 12.a3 Nc6 13.0–0 h5–/+ 14.g5 Ne4 15.de4 de4 16.Nh4 e3 17.Ng6 fg6 18.h4 Qe6 19.Kh2 Qd6 20.f4 ed2 21.Bh3 Kb8 22.e4 Rhf8 23.Kg3 Qc5 24.Rf3 Nd4 25.Rd3 Nc2 (26.Qd2 Rd3 27.Qd3 Na1–+) 0–1. macxadOFF – pierre, internet, 2009.

6.Bg3 Bb4 7.c3 Ba5 8.Qb3= d4 9.Bh4 Qh4 10.Qb7–+ Qf6?? 11.Qa8= Kd7 12.Kd1 dc3 13.g4 c2! 14.Kc2 Nge7 15.Qb7 Rb8 16.Qb8 Nb8 (17.gh5 Qa1–+) 0–1. Pierred (2195) – Hbcc_dfg (2545), Rated game, 3m + 0s, 2005.

4.d3 e6

5.a3 a5 =+.

5.Nd2 Bb4?? 6.Bg7+– Bc3 7.Bc3 f6 (7...d4 8.Bb2+–) 8.Qb1 (8.Rb1 b6+–) 8...b6 9.Qb2 (9.e4 c5+–) 9...Nd7 10.e3 e5 (10...c5 11.f4+–) 11.d4 e4 12.Bb4 f5 13.Qc3 Nh6 14.Qc6 Nf7 15.Qe6 1–0. marekt – alex.a, ChessWorld.net, 2004.

5.g4 Bb4? 6.Nd2 Nf6 7.gh5 +–.

5.g4 Bg6 6.h4 (6.a3!?=) 6...h5–/+ (worse is 6...Bb4 7.c3 Bc5 8.h5 Bd3 9.ed3+–) 7.g5 Bb4 8.Nd2 Rh7 9.a3 (9.Ngf3 Ne7–/+) 9...Ba5–/+ 10.Bg2 Ne7 11.Ngf3 Qd6 12.Kf1 (12.Be5 Qa6–/+) 12...Nd7 (12...Nbc6 13.Nb3–/+) 13.c4 (13.Nb3!? Bb6 14.a4–/+) 13...0–0–0–+ 14.a4 (14.Rc1 Kb8–+) 14...Bb4 (14...Nc6 15.Kg1–+) 15.cd5 (15.Kg1 Nc6–+) 15...ed5 16.Rb1 c5 (16...Re8 17.Kg1–+) 17.Qb3 (17.Kg1 Nc6–+) 17...c4! 18.Rc1 (18.dc4 Bb1 Pinning (18...Bb1 Deflection)) 18...Nc6 19.dc4 d4 20.c5 Nc5 21.Qa2 (21.Qc4 d3 22.e3 Qe7= (22...Na4?! 23.Bh3 Rd7 24.Bd4=)) 21...Kb8 22.Nc4 (22.Kg1 d3 23.e3 f6–+) 22...Qe6 23.Ba3 (23.Bh3 Qd5 24.Kg1–+) 23...d3 24.Bb4 (24.Bh3 de2 25.Qe2 Qe2 26.Ke2 Bd3 27.Ke3 Bc4 28.Bb4 Rd3 (28...Nb4?! 29.Rc4 Nd5 30.Kd4 Nb3 31.Ke5–+) 29.Kf4 Bd5–+ (29...Nb4?! 30.Rc4 Ra3 31.g6 Nbd3 32.Kf5–/+)) 24...Nb4 25.Qd2 de2 (25...de2 26.Qe2 Bd3 27.Qd3 Ncd3–+) 0–1. Rush,Bradley – Trokenheim,Marek (1780), OP–2012–0–02198, 2012.

5.a3 Nf6

6.Nd2 a5 7.g4 Bg6 8.g5 Nfd7 9.Ngf3 Nc6 (9...h6 10.gh6 Rh6 11.Bg2=) 10.b5 Na7 11.a4 c6 12.c4 dc4 13.dc4 (worse is 13.Nc4 cb5 14.ab5 Bb4 15.Nfd2 Qg5–/+) 13...h6 14.gh6 Rh6 15.Bg2 Nc5 16.Ne5 Qc7 17.Ng6 Rg6 18.0–0 (18.Bf3 Rd8=) 18...0–0–0 (18...Rd8 19.Qc2+=) 19.Qc2= Be7 20.Rab1 b6 21.Nf3 Bf6 22.Ba3 cb5 (22...Nd7 23.c5 cb5 24.Rfc1 Nc5 25.Bc5 bc5 26.ab5+= (26.Qc5?? Rd1 27.Rd1 Qc5–+)) 23.cb5+= Rd5 24.Rbc1 Kb8 25.Rfd1 Rd1 26.Qd1 Nc8 27.Nd4 Ne7 28.e3 Qb7 29.Qf1 Bd4+= 30.ed4 White gets strong initiative 30...Ne4 31.Be7 Qe7 32.Rc6 Qg5 33.Kh1 Qd5 34.Rb6 Kc7 35.Rc6 Kd7 36.Qe2 Rg2 37.Kg2+– Ng5 38.f3 Qf5 39.Qe3 Qh3 40.Kf2 Qh2 41.Ke1 Qg2 42.Rc3 Qb2 43.b6 (43.b6 Qb4 44.Ke2+– (44.Qg5 Qc3 45.Ke2 Qc4 46.Ke1 Qa4+=); 43.Qg5 Qc3 44.Qd2 Qf3 45.Qa5 Qe3 46.Kf1 Qd3 47.Ke1 Qd4+=) 1–0. Woelfelschneider,Peter – el Joergo, 2009.

6.Nd2 c5 7.bc5 Bc5 8.c4 Bf2 9.Kf2 Qb6 10.Ke1 Qb2 11.Ngf3 (better is 11.Qa4!? Nc6 12.Rb1–/+) 11...Bf3–+ 12.ef3 0–0 13.Rb1 Qa3 14.Rb7 Nc6 15.Be2 Nd4 16.h4 Nh5 (16...Nh5 17.Bf1 Qd6–+) 0–1. Loulou – Albert_camus, playchess.de, 2003.

6.Nd2 Nbd7 7.Ngf3 a5 8.ba5 Ra5 9.e3 Bd6 10.Be2 c6 11.0–0 0–0 12.c4 Qe7 13.Nb3 Ra4 (13...Ra6 14.cd5 ed5 15.a4–/+) 14.cd5 (14.c5 Bc7= (worse is 14...Bc5 15.Nc5 Nc5 16.d4+/–)) 14...Nd5+= 15.Nbd4 Rfa8 16.Nc2 R4a6 17.d4 Ra4 18.Ne5 Be2 19.Qe2 N7b6 20.Nd3 f5 21.f4 Nc4 22.Bc1 Nc3 23.Qe1 Ne4 24.Ne5 Be5 25.fe5 b6 26.Kh2 c5 27.Rb1 Qc7 28.Qd1?? (better is 28.Kg1–/+) 28...Nc3–+ (28...Nc3 29.Qd3 Nb1–+) 0–1. Hovla1 – marekt, ChessWorld.net, 2015.

6.g4 Bg6 7.Nf3 c5 8.g5 (8.Qd2 cb4 9.ab4 Na6=) 8...Nh5 9.c3 Bd6 10.bc5 Bc5 11.Qb3 Nd7 12.c4 (12.Nbd2 0–0=+) 12...dc4 Black launches an attack 13.Qc4 Rc8 14.Qb3 0–0 15.Nbd2 (15.Qb7?? Rb8 16.Qc6 Rb6–+) 15...Be7 16.Qa4 (16.Qb7? Nc5 17.Qa7 Ra8 18.Qa8 Qa8–+) 16...Nc5 17.Qd4 (17.Qg4 Qa5=+) 17...Qa5–/+ 18.Qe5 (18.Qe3 Nb3 19.Rb1 Rc2–/+) 18...Rfd8 19.Qe3 Nb3 20.Rd1 Rc2 21.Qe5 (21.Be5 Rd5 22.Bf4–+) 21...b5 22.Bc3 (22.Qe3 Rb2 23.Qe5 Qa3–+) 22...Rc3 (< 22...Qc3 23.Qc3 Rc3 24.Rb1–+) 23.a4 Rc5 24.Qb2 ba4 (25.Rg1 Nf4–+) 0–1. Pierred (2145) – Beverwijk (2430), Rated game, 2m + 0s, 2005.

5.Nd2 Nf6

6.a3 c5 7.bc5 Bc5 8.Ngf3 Nc6 (8...Qb6!? 9.d4 Qb2 10.dc5 Bf3 11.gf3 Nbd7–+) 9.e3 Qb6 10.Bf6 gf6 11.d4 Nd4 12.g4 Nf3 13.Qf3 Bg6 14.Qf6 0–0 15.Bd3 Qd8 16.Qd8 Rfd8 17.Bg6 hg6 18.Nb3 Rac8 19.Nc5 ½–½. Loulou – houtduwer, HCL–E944 playchess.de, 2003.

6.a3 c5 7.g4 Bg6 8.h4 =+.

6.a3 Nbd7 7.Ngf3 Be7 8.g4= Bg6 9.Bg2 0–0 10.e3 c5 11.b5 Qc7 12.Qe2 Rac8 13.c4 Rfd8 14.g5 Nh5 15.h4 Bd6 16.Nf1 d4 17.N3d2? de3 18.fe3 Ng3 19.Ng3 Bg3 20.Kd1 Ne5 21.Be5 Be5 22.e4 Ba1 23.h5 Bh5 24.Qh5 Qg3 25.Qh7 Kf8 26.Bf3 Ke7 27.Ke2 Bd4 28.Qh4 Qh4 29.Rh4 Rh8 30.Rh8 Rh8 31.Nf1 Be5 32.Kf2 Bf4 33.g6 fg6 34.e5 b6 35.Be4 g5 36.Bg2 Rd8 37.Ke2 Kf7 38.Ne3 Be3 39.Ke3 Kg6 40.Be4 Kh5 41.Kf3 Kh4 42.Kg2 Kg4 43.Bg6 Kf4 44.Kh3 Ke5 (45.Kg4 Kd4 46.Kg5 Rh8–+) 0–1. Kleine,Peter – Jaeschke,Jens Uwe (2155), Berlin GER Unicorn Open, 2005.

4.d4 e6=+

5.c3 a6 6.Nd2 Be7 7.Ngf3 Nc6 8.e4= Nf6 9.e5 Ne4 10.Qc2 Bg6 11.Bd3 Bg5 12.Ne4+/– de4 13.Be4 Be4 14.Qe4 0–0 15.0–0 Qe7 16.Ba3 Rfd8? 17.b5!+– Qa3 18.bc6 Be7 19.cb7 Rab8 20.Qc6 h6 21.Qc7 f6 22.Qc6 Kf7 23.Rfb1 Qa5 24.a4 Rd5 25.Rb6 Kg6 26.Rab1 Kh7 27.Qe6 Bd8 28.Ra6 Qc7 29.Qd5 Qc3 30.Qc6 Qd3 31.Rb5 fe5 32.Qd6 ed4 33.Qb8 Bh4 34.Nh4 (34.Nh4 Qd1 35.Kh2 Qf3 36.Ra8 Qf4 37.Qf4 d3 38.Qf5 g6 39.Qg6#; 34.Rh6 gh6 35.Qc7 Kg6 36.Ne5 Kf5 37.Qh7 Kg5 38.Nf3 Kf6 39.Rb6#) 1–0. mrrook (2490) – justenest, net–chess.com, 2009.

5.c3 Nf6 6.Qc2 a5 7.a3 Bg6 8.Qd1 Bd6 9.Nd2 0–0 10.Ngf3 Nbd7 11.e3 ab4 12.ab4 Ra1 13.Ba1 Qa8 14.g4 Qa2–/+ 15.Be2 Ra8 16.0–0 h5 17.Ng5 e5 18.gh5–/+ Bc2 19.Qc1 e4 20.Kg2 Bd3 21.Bd3 ed3 22.Qd1 Qa6 23.Nb3 Qb5 24.Nf3= Nh5 25.Bb2 Ndf6 26.Nc1 d2 27.Nd2 g6 28.Ndb3 Ng7 29.Nd3 Nf5 30.Nbc5? b6–/+ 31.Nb3 Nh4 32.Kg1 Qd7 33.f3 Qh3 34.Qe2 Qg3 35.Kh1 Kg7 36.Nf4 Bf4 (36...Bf4 37.Bc1 Nf3 38.ef4 Rh8 39.Qh2 Rh2#) 0–1. mrrook (2490) – pierred (2755), net–chess.com, 2009.

5.Nd2 Bb4 6.c3 Bd6 7.Ngf3 Nf6 8.e3 0–0 9.Be2 c5 10.0–0 Qb6 11.Nh4?? Be2–+ 12.Qe2 Qb2 13.dc5 Bc5 14.Rfb1 Qc3 15.Rc1 Qa3 16.Nhf3 Nc6 17.Qb5 Bd6 18.Qb7 Nb4 19.Qb5 Nd3 20.Rd1 Rfc8 21.Qb3 Qa6 22.Rf1 Rab8 23.Qd1 Nb2 24.Qe1 Bb4 25.Rc1 Ne4 26.Rc8 Qc8 27.a3 Ba5 28.Qe2 Nc3 29.Qe1 Nd3 30.Qa1 Rb2 31.Ne5 Ra2 32.Qa2 Na2 33.Nd3 Bd2 34.Rb1 g5 35.Rb2 Qc3 36.Ra2 Qd3 37.Ra1 Bc3 38.Rc1 d4 39.ed4 Bd4 40.Re1 Qa3 41.Rd1 Qb2 42.Rf1 a5 0–1. bdbor (2100) – pierred (2790), net–chess.com, 2011.

5.g4 Bg6 6.Nf3 Bb4 7.c3 Bd6 8.e3 Nf6 9.Qa4 Nc6 10.Ne5 Be5 11.de5 Nd7 12.c4 Be4 13.Rg1 0–0 14.Nd2 Nde5 15.0–0–0 Nd3 16.Bd3 Bd3 17.Qa3 Be2 18.Qc3 e5 19.Rde1 Bc4 20.Nf3 Re8 21.g5 Ba2 22.Ne5 Ne5 23.f4 Re6 24.fe5 Rc6 25.Qc6 bc6 26.h4 Qd7 27.h5 Qf5 28.h6 Qb1 29.Kd2 Qb2 30.Kd1 Bb3 0–1. whitepawn – pierred (2765), net–chess.com, 2011.

5.a3 Nf6

6.Nd2 c6 7.Ngf3 Bd6 8.e3 0–0 9.c4 Nbd7 10.Be2 Re8 11.0–0 a5 12.c5 Bc7 13.Qc2 e5 14.de5 Ne5 15.Rac1 ab4 16.ab4 Qe7 17.Rfe1 Bg6 18.Qb3 Ra7 19.Ra1 Rea8 20.Ra7 Ra7 21.Ra1 Ra1 22.Ba1 Nf3 23.Nf3 Ne4 24.Qa3 h6 25.Bd3 Qe8 26.Qa7 Qb8 (26...Nf2 27.Bg6 Nh3 28.gh3 Qe3 29.Kg2 Qe2 30.Kg1 Qe3 31.Kg2 Qe2 32.Kg1 Qe3=) 27.Qa2 ½–½. Legg,Jerry (1735) – Howes,Tony, IECG, 2004.

6.Nd2 Nc6 7.Ngf3 Bf3 8.Nf3= a6 9.e3 Bd6 10.Bd3 0–0 11.c3 b5 12.Qc2 g6 13.a4+= Na7 14.ab5 ab5 15.0–0 c6 16.Ra6 Qc7 17.Rfa1 Rfb8 18.g4 Qb7 19.R6a5 Nc8 20.g5 Nd7 21.R5a3 Ra3= 22.Ba3 Ra8 23.Qe2 Ra6 24.Ra2 Qa7 25.Qb2 Ndb6 26.h4 Nc4 27.Bc4 dc4 28.Ra1 Nb6 29.Ra2 Nd5 30.Ra1 Qa8 31.Ne1 Kg7 32.Ra2 f6 33.e4= Nf4 34.gf6 Kf6 35.e5+/– Be5 36.de5 Ke5 37.Nf3 Kf6+= 38.Qd2 Nd5 39.Qd4+– Kf7 40.Ng5 Ke7?? 41.Qg7 Kd6 42.Ne4# 1–0. mrrook (2490) – enco (2120), net–chess.com, 2009.

4.Nf3= Nd7

5.Nc3 e6 6.a3 (6.e4 de4 7.Ne4 Ngf6=+) 6...Ngf6 7.e3 (7.Rb1 a5–/+) 7...Be7 (7...a5 8.ba5 Ra5 9.Be2=+) 8.Be2 (8.g4 Bg6=+) 8...0–0 9.0–0 c5 (9...a5 10.b5=+) 10.bc5 Nc5 (10...Bc5 11.Ne1 Be2 12.Qe2=+) 11.Rb1 (11.Ne5 Be2 12.Qe2 Rc8=+) 11...Qa5 (11...a6 12.g4 Bg6 13.Nh4=+) 12.d3 (12.Nd4 Be2 13.Nce2 Rac8=+) 12...Rac8 13.Nb5 (13.Ne5 Be2 14.Ne2 Ncd7=+) 13...Qb5 (13...a6 14.Bc3 Qd8 15.Bf6 Bf6 16.Nbd4–/+) 14.Bf6=+ Qe8 15.Be7 (15.Bd4 b6=+) 15...Qe7 16.Nd4 Be2 (16...Bg6 17.Bh5=+) 17.Qe2 Na4 18.Rb3 Rc3 (18...Nc3 19.Qh5=+) 19.Nb5= Rb3 20.cb3 Nb6 (20...a6 21.Nd4 e5 22.Nf5= (< 22.ba4 ed4 23.Qf3 de3=+)) 21.Rc1 (< 21.Na7 Qa3 22.Nb5 Qb3=+) 21...a6 22.Nd4 Rc8 (22...e5 23.Nf5 Qa3 24.Rc7 Qb3 25.Qg4+/–) 23.Rc8 Nc8 ½–½. Garfield85 (1875) – Maradona (1740), internet, 2006.

5.Nc3 Ngf6 =.

5.c4 e6 6.Nc3 Ngf6 (6...dc4!? 7.Rc1 (7.Qa4 c6 8.b5 Nb6 9.Qa5 Bf3 10.gf3 Ne7 11.Bg2 a6 12.bc6) 7...Bb4–/+ (7...Ngf6 8.g4 Bg6 9.g5 Nd5 10.Nd5 ed5 11.h4 a5 12.h5) 8.Ne4 Ngf6 9.Nf6 gf6 10.Rc4 c5 11.g4 Bg6 12.a3) 7.g4= (7.cd5 ed5 8.g4 Bg6 9.g5 Ne4 10.Nd5 Nb6 11.Nb6 ab6 12.Qb3) 7...Bg6 8.g5 Ne4 9.h4 (better is 9.cd5!? ed5 (9...Ng5 10.Ng5 Qg5 11.h4 Qh5 12.Qa4) 10.Nd5= Nb6 11.Nf4 Bb4 12.Nd3) 9...Nc3 (9...dc4 10.Bg2 Nd6 11.Rc1 c6 12.h5) 10.Bc3 (10.dc3 dc4 11.Bg2 c5 12.Qa4) 10...Be4 (10...dc4 11.h5 (11.e3 Nb6 12.Ne5) 11...Be4 12.Bg2+= (12.e3–/+)) 11.d3 (11.e3 dc4 12.Bc4) 11...Bf3 12.ef3 d4 13.Bd2 c5 14.b5 Bd6 15.f4 Qc7 16.Qf3 e5 17.f5 0–0–0 18.0–0–0 Rhe8 19.Bg2 e4 20.de4 Ne5 21.Qb3 f6 22.f4 Ng4 23.Rhf1 Nh2 24.Rf2 Ng4 ½–½. Tomasi,Stephane (1750) – Sintes,Marc (1900), Provence–ch Principal, 1995.

5.c4 Bf3 6.ef3 Ngf6 7.cd5 Nd5 8.a3 e6 9.Nc3 N7b6 10.Qc2 a5 11.Nd5 Nd5 12.b5 h5 13.h4 Qd6 14.g3 Be7 15.Bg7 Rg8 16.Qh7 (16.Bb2!? Rg3 17.fg3 Qg3 18.Ke2 Nf4 19.Ke3 Nd5 20.Ke2 Nf4 21.Ke3 Nd5 22.Ke2=) 16...0–0–0+= 17.Ra2 f5 18.Bc4 Kb8 19.Kf1 (19.Be2!?+=) 19...Nb6–/+ 20.Be2 e5 21.d4 ed4 22.Rd2 Qe6 23.Qh6 (23.Rd4? Qf7 24.Rd8 Bd8–+ (24...Rd8?! 25.Qh6=); worse is 23.Bd4 Rge8 24.f4 Nc4–/+) 23...Qh6 24.Bh6 Ba3 25.Bg5 Bb4 26.Rd3 Rd5 27.f4 Bc3 28.Kg2 a4 (28...Rb5 29.Rc3 Rb2 30.Bc4+=) 29.Bf6 Rg6 (29...Rb5 30.Rc3 Rb2 31.Bc4+/–) 30.Be5 Rh6 31.Rc1 Rh7 32.Rc2 Kc8 33.Rdc3 dc3 34.Rc3 Rd2 35.Kf1 Ra2 36.Bd3 Rf7 37.Be2 Rd7 38.Bh5 Kb8 (38...Nd5!? 39.Rc4 a3+=) 39.Bg6= Rdd2 40.Bc7 Ka7 41.Rf3 (41.Bf5 Rf2 42.Kg1 Rg2 43.Kf1 Rgd2–+) 41...Rac2 42.Be5 Nc4 43.Bf5 Rc1 44.Kg2 Rdd1 45.Bg7 Rg1 46.Kh3 Kb6 47.Be6 Kb5 48.f5 (48.f5 Rh1 49.Kg4+/–) 1–0. forsetinn (2420) – marekt (2175), gameknot.com, 2015.

5.e3 Ngf6 (--> 4.Nf3 Nf6 5.e3 Nbd7).

5.c4 dc4

6.Na3 c3 (6...Nb6 7.Ne5 (7.Rc1 Qd5 8.e3 e5 9.Nc4 e4 10.g4 ef3 11.gh5 Nd7=) 7...e6 8.g4 f6 9.Nac4 Nc4 10.Qa4 Ke7 11.Nc4 Qd5=; 6...Ngf6 7.Nc4 (7.g4 Bg6 8.Nc4 e6 9.a3 b5 10.Ne3 c5 11.Bg2 Rc8=) 7...e6 8.Qb3 Bg6 9.d3 Be7 10.Nce5 Ne5 11.Ne5 Qd6=; 6...e6 7.Nc4 (7.g4 Bg6 8.Nc4 Ngf6 9.a3 b5 10.Ne3 c5 11.Bg2 Rc8=) 7...Ngf6 8.Qb3 Bg6 9.d3 Be7 10.Nce5 Ne5 11.Ne5 Qd6=; 6...Bf3 7.ef3 Ngf6 8.Nc4 e6 9.a3 Be7 10.Bd3 0–0 11.Qc2 c5+=) 7.dc3 (7.Bc3 Bf3 8.gf3 Ngf6 9.Nc4 e6 10.Rg1 Rg8 11.e4 a6=) 7...Ngf6 (7...e5 8.Qa4 a5 9.Qb5 ab4 10.Nc4 f6 11.Qb7 Rb8+=) 8.Nc4 (8.Qa4 e6 9.Rd1 a5 10.ba5 c6 11.Qb3 Qa5+=) 8...c6 (8...e6 9.e3 Qe7 10.Ncd2 0–0–0 11.Qa4 Kb8+=) 9.Qb3 (9.e3 Qc7 10.Bd3 e5 11.e4 b5+=) 9...Qc7 10.g3 (10.Rd1 e5 11.Bc1 b5=) 10...Bf3 (10...Bg6 11.Rd1 e5=) 11.ef3 0–0–0 (11...h5+=) 12.Bg2 e6 13.a4 h5 14.h4 Ne5 15.0–0 Nc4 16.Qc4 Be7 17.f4 Rd7 18.a5 a6 19.Qb3 Rhd8 20.Rad1 Rd1 ½–½. forsetinn (2115) – recklessattack (2070), gameknot.com, 2013.

6.Qc2 A) 6...Bf3 7.gf3 (7.ef3 e6 8.a3 Ngf6 9.Bc4 Bd6 10.Nc3 a5 11.b5 0–0+=) 7...Nb6 8.Na3 Qd6 9.Nc4 Qb4 10.Nb6 Qb6 11.Be5 c5=; B) 6...Nb6 7.Ne5 (7.a3 a5 8.ba5 Ra5 9.Ne5 e6 10.Nc4 Nc4 11.Qc4 Nf6+=) 7...Nf6 8.Nc4 e6 9.a3 Nc4 10.Qc4 c6 11.g4 Bg6+=; C) 6...Ngf6 7.Qc4 (7.g4 Bg6 8.Qc4 Nb6 9.Qd4 e6 10.Qd8 Rd8 11.Bf6 gf6+=) 7...e6 8.g4 Nb6 9.Qd4 Bg6 10.Qd8 Rd8 11.Bf6 gf6+=; D) 6...b5 7.Qf5 (7.Nd4 a6 8.Nc6 Qc8 9.d3 Qb7 10.Na5 cd3 11.Qd3 Qc8+=) 7...Bf3 8.Qf3 Rb8 9.a4 ba4 10.Ra4 c5 11.e4 e6+=.

5.d4 e6

6.a3 c6 7.Nbd2 (7.e3 Bd6=) 7...Ngf6 8.c4 (8.e3 b5=) 8...Bd6 (8...Bf3 9.gf3 a5 10.c5=) 9.Qb3 (9.e3 Ne4=) 9...0–0 (9...Bg6 10.e3=) 10.e3 (10.Ne5 Qe7=) 10...Ne4 (10...Bf3 11.Nf3 Re8 12.c5=) 11.g4 (11.Ne4 de4 12.Nd2 Qh4=) 11...Bg6=+ 12.Bd3 a5 13.c5 Bc7 14.Ke2 f5 15.Raf1 Qe7 16.Ne5 Ne5–/+ 17.de5 Rf7 18.Be4 fe4–/+ 19.f4 ef3 20.Rf3 ab4 21.Rf7 Bf7 22.ab4 Qh4 23.e4=+ Bg6 24.Ra1 Ra1 25.Ba1 h5 26.ed5 ed5 27.Qc3 hg4–+ 28.e6 Qe7 29.hg4 Qe6 30.Kf2 Qf7 31.Ke2 Be4 32.Qh3 Qe6 33.Kd1 Bg6 34.Qf3–/+ Be8 35.Bd4 Bd7–+ 36.g5 Qg4 37.Qg4 Bg4 38.Kc2 Bf4 39.g6 Bh5 40.Nb3 Bg6 41.Kd1 Bd3 42.Nd2 Kf7 43.Nf3 g5 44.Ne5 Be5 45.Be5 Ke6 46.Bc3 Kf5 47.Kd2 Ke4 48.Bf6 g4 49.Bh4 Bb5 50.Bg3 d4 51.Bf2 d3 52.Bg1 Kf3 53.Bd4 Kg2 54.Be5 g3 55.Ke1 d2 (56.Kd2 Kf2–+) 0–1. Kretschmar,Heinz – Janzek,Jury, corr olm8, 1973.

6.a3 Bd6 7.e3 =+.

6.c3 Bd6 7.e3 Ngf6 8.Be2 0–0 9.a3 Qe7 10.0–0 c6 11.c4 Bf3 12.Bf3 dc4 13.Nd2 b5 14.Bc6 Rac8 15.Bb5 c3 16.Bc3 Rc3 17.Qa4 Nb6 18.Qd1 Rfc8 19.a4? Bb4 20.Qf3 e5 21.de5 Qe5 22.Rab1 a5 23.Rfd1 Ra3 24.Qb7 Qb8 25.Qb8 Rb8 26.Nf3 Na4 27.Bc4 Nc3 28.Ne5 Nb1 29.Rb1 Bd6 30.Rb8 Bb8 31.f4 Be5 (32.fe5 Ne4–+) 0–1. Borup,John – Reuter,Alfred (1770), 04. VCC–Open, 2001.

5.e3 e5

6.Be2 Bb4 7.Be5 Bf3 8.Bg7 Be2 9.Qe2 Qg5 10.Bh8 Qg2 11.Rf1 0–0–0 12.Bc3 Bc5 13.a4 Ngf6 14.Bf6 Nf6 15.Nc3 d4 16.Nb5 de3 17.de3 Bb4 18.c3 Ba5 19.Rd1 Rd1 20.Qd1 a6 21.Qd4 Qc6 22.Na7 Kb8 23.Nc6 bc6 1–0. ourang – lordul7, kurnik, 2012.

6.Be2 e4 7.Nd4 Be2 8.Qe2 =+.

6.Be2 f6 7.Nh4 (7.Nc3 Bb4 8.Nd5 Bd6=) 7...Bf7 8.0–0 (8.a3!?=) 8...Bb4–/+ 9.c4 (9.Nf5 g6 10.Ng3 Ne7–/+) 9...dc4 10.Qa4 Bd6 11.Bc4 Ne7 (11...Bc4 12.Qc4 Ne7 13.Nf3–/+) 12.Bf7=+ Kf7 13.Nc3 Nc5 (13...Re8 14.Rad1=+) 14.Qc4 Ne6 15.d4 (15.Nf3 Nc6=+) 15...Qd7 (15...ed4 16.ed4 c6 17.Rae1=+) 16.d5 (16.Nf3 ed4 17.Nd4 Rhd8=+) 16...Nf8 17.Rac1 a6 18.Rfd1 g5 19.Nf3= h5 20.Qb3 b5 21.Ne4 g4 22.hg4 hg4 23.Nf6 Kf6 24.Ne5+/– Be5 25.Be5 Ke5 26.Qb2 Kf5 27.e4 Kg6 28.Qh8 Rd8 29.Qc3 Nh7 30.Qc7+– Nf6 31.d6 Neg8 32.e5 Ne8 33.Qd7 Rd7 34.Rc8 Ngf6 35.ef6 Nf6 36.Ra8 Ne4 37.Ra6 Kf5 38.Rb6 Ke6 39.Re1 (39...Kd5 40.Rb5 Kc6 41.Rb4 Nd6 42.Rg4+–) 1–0. PeterRs – WoodPusher83, ChessWorld.net, 2006.

6.g4 Bg6 =.

5.e3 e6

6.a3 Ngf6 7.c4 c6 8.d4 Bd6 9.Nbd2 0–0 10.Be2 Re8 11.Ne5 Be2=+ 12.Qe2 a5 13.b5 Be5 14.de5= Ne4 ½–½. Mikhalchishin,Adrian (2530) – Pavasovic,Dusko (2565), Bled op, 2002.

6.c4 dc4 7.Bc4= (7.Na3 Ngf6 8.Nc4 Bb4 9.Qa4 Bf3 10.gf3 Bc5 11.Rg1 0–0 12.Bd3 Be7) 7...Ngf6 (7...Bb4?? 8.Bg7 Ne7 9.Bh8+–; 7...Nb6 8.Bb5 c6 9.Be2 Nf6 10.b5 Bd6 11.bc6 bc6 12.Nc3 0–0) 8.b5 (8.Na3 a5 (8...Bb4 9.g4 Bg6 10.g5 Ne4 11.Bg7 Rg8 12.Nc2 Ba5; 8...Nb6 9.Qb3 a5 10.ba5 Ra5 11.Bd3 Rd5 12.Nd4 e5; 8...Bf3 9.Qf3 Bb4 10.0–0 c6 11.Rab1 a5 12.Nc2 0–0) 9.g4 Bg6 10.ba5 Ra5 11.Nb5 c6 12.Nbd4 Ne4; 8.g4 Bg6 (8...Nb6 9.Be2 Bg6 10.Qb3 Nfd5 11.a3 h5 12.gh5 Bh5) 9.Nc3 Nb6 10.Be2 Bb4 11.Qb3 a5 12.g5 Nfd7; 8.Qb3 a5 9.a3 Ne4 10.g4 Bg6 11.Nc3 ab4 12.ab4 Ne5; 8.a3 Be7 (8...a5 9.Nc3 ab4 10.ab4 Ra1 11.Qa1 Nb6 12.Be2 Bb4; 8...Nb6 9.Be2 a5 10.b5 Bd6 11.Nc3 0–0 12.0–0 Nbd5) 9.Nc3 0–0 10.d4 Nb6 11.Be2 Nbd5 12.0–0 Nc3) 8...Bd6 (8...Be7 9.0–0 0–0 10.d4 Nb6 11.Be2 Nbd5 12.Nc3 Nc3) 9.0–0 (9.g4 Bg6 10.g5 Nh5 11.Nc3 0–0 12.Na4 e5) 9...0–0 (9...Nb6 10.Be2= 0–0 11.Nc3 h6 12.Qb3 Qd7) 10.d4 (10.Nc3 h6 11.d4 Nb6 12.Bd3 Nbd5) 10...Rc8 (10...Ne4 11.Bd3 Bg6 (11...f5 12.Nc3 Ndf6) 12.Qe2= (12.Nc3 Nc3) 12...Qf6; 10...Nb6 11.Bd3 Nbd5 12.Nc3 Qd7) 11.Be2 (11.Bd3 c5= 12.bc6 Rc6; 11.Nc3 Nb6 12.Bd3 Nbd5) 11...c5 (11...c6 12.Na3= (12.Nc3 c5) 12...Qe7) 12.bc6 (12.Nbd2 cd4= (12...Be7=)) 12...Rc6 13.Nc3 (13.Ba3 Ba3 14.Na3 Ne4=) 13...Qa5 (13...Qb6 14.Qb3=) 14.Rc1 a6 (14...Rd8 15.Qa4 Qa4 16.Na4=) 15.Nd2 (15.Qb3!?=) 15...Be2+= 16.Qe2 Rfc8 17.Nb3 Qg5 (17...Qc7 18.Na4 Qd8 19.Rc6 Rc6 20.Qf3=) 18.Nd2 (18.Qf3 b5+=) 18...Qg6 (18...Bb4 19.Qd3+=) 19.e4 (19.Qf3 Bb4 20.e4 Qh5+=) 19...Bf4–/+ 20.e5 Nh5 (20...Nd5 21.Nd5 ed5 22.Rc6 Rc6 23.Nb3+=) 21.Nce4 Bd2 22.Nd2 Rc2 (22...Qf5 23.Rfd1+=) 23.Rc2 (23.Qf3!? Nb6 24.Qb7=) 23...Rc2–/+ (worse is 23...Qc2 A) 24.Qh5 Qd2 (24...Qb2?! 25.Ne4 Rc1 26.Ng5 Rf1 27.Kf1 Qb1 28.Ke2 Qc2 29.Kf1 Qc1 30.Ke2 Qc4 31.Ke1 Qb4 32.Kf1 Qb5 33.Kg1 Qb1 34.Kh2=) 25.Ba3 Qa2–/+; B) 24.Rc1 Qc1 25.Bc1+/–) 24.Bc1 Nf4 25.Qf3 Nd5 26.a3 f6 27.ef6 N7f6 28.Re1? Rc3–+ 29.Qe2 Nf4 30.Qf1 Nh3 31.Kh1 Qh5 32.gh3 Rh3 33.Kg1 Rh1 34.Kg2 Qh3# 0–1. Walter,Mario (2000) – Maeuer,Karl_Heinz (2000), RSS7E–104 remoteschach.de, 2010.

6.c4 c6 7.cd5 cd5 8.Be2 Ndf6 9.a3 Bd6 10.0–0 Ne7 11.Bf6 gf6 12.d4 Rg8 13.Nbd2 Nf5 14.Rc1 Bc7 15.Qc2 Rc8 16.e4 Bh2 17.Kh2 Rc2 18.Rc2 Bf3 19.Bf3 Nd4 20.Rc3 Qd6 21.Kg1 Ke7 22.Rfc1 Nf3 23.Nf3 Rd8 24.ed5 e5 25.Rc7 Rd7 26.R7c5 b6 27.R5c3 Qd5 28.Nh4 Ke6 29.Rc6 Rd6 30.Rd6 Qd6 31.g3 f5 32.b5 f4 33.Rc6 Qc6 34.bc6 fg3 35.fg3 Kd6 36.Nf5 Kc6 37.Kf2 b5 38.Ke3 a5 39.Ke4 b4 40.ab4 a4 41.Ke5 Kb5 42.Nd4 Kb4 43.Nc2 Kb3 44.Na1 Kb2 45.Kf6 Ka1 46.Kf7 Kb2 47.Kg7 a3 48.Kh7 a2 49.g4 a1Q 50.g5 Qh1 51.Kg6 Qh3 52.Kf6 Qh8 53.Kf5 1–0. emeryt85 – gbargan, kurnik, 2012.

6.c4 Ngf6 7.a3 Be7 8.cd5 1–0. Turbomike – DanC, playchess.de, 2003.

6.c4 Ngf6 7.Qb3 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 Bf3 11.gf3 g6 12.Nc3 c6 13.Bb2 Bg7 14.b5 0–0 15.Ba3 Re8 16.Be2 Ne5 17.cd5 ed5 18.bc6 d4 19.c7 Qc7 20.Nb5 Qb6 21.Nd4 Qa7 22.0–0 Nh5 23.Rc1 b6 24.Bd6 Qd7 25.Qb5 Qd8 26.f4 Nd7 27.Nc6 Qf6 28.Qd5 Nc5 29.Be5 Qh4 30.Bg7 Nf4 31.ef4 Kg7 32.Qd4 Kg8 33.Bf1 Ne6 34.Qe3 Kf8 35.Re1 Rc8 36.Qa3 Kg8 37.Ne7 1–0. Morozevich,A – wally, ICC blitz, 1999.

6.Be2 Bb4? 7.Bg7 Bf3 8.Bf3 +– (8.Bh8?! Be2 9.Qe2 Qg5+–).

6.Be2 Ngf6 7.a3 c5 8.bc5 Bc5 9.0–0 0–0 10.d4 Qb6 11.Bc1 Be7 12.Nbd2 Qc7 13.c4 Bf3 14.gf3 Nb6 15.c5 Nbd7 16.f4 Rfc8 17.a4 b6–/+ 18.cb6 Nb6 19.a5 (19...Nbd7 20.Ba6–/+). Mely – hooks, ChessWorld.net, 2006.

6.Be2 Ngf6 7.b5 Bd6=+ 8.0–0 0–0 9.d3 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 Qe7 13.Nbd2 Ra8 14.g4 Bg6 15.Nh4 Ne8 16.Ng6= hg6 17.Bf3 Nb6 18.c4 Ra2 (18...c6 19.bc6 bc6 20.Bg2=) ½–½. Pedersen,Erik (2400) – Nielsen,Peter Heine (2475), DEN–chT, 1994.

5.g4 Bg6

6.d3 e6 7.a3 c6 8.Bg2 a5 9.c3 Ngf6 10.0–0 Bd6 11.Nbd2 Qe7 12.Nh4 Ng4 13.Ng6 hg6 14.hg4 Bh2 15.Kh1 Bf4 ½–½. Atri Sangari,Jamshid (2160) – Kjetzae,Johnny (2110), Hamburg HSK Elo op 3rd, 2002.

6.Bd4 Ngf6 =.

6.Bg2 c6 7.0–0 h5 8.g5 e5 9.Ne5 Ne5 10.Be5 Qg5 11.f4 Qe7 (11...Qf5 12.c4 f6 13.Bc3+=) 12.d3 (better is 12.b5!?=) 12...f6+= 13.Bd4 Qb4 14.c3 Qa5 15.e4? (15.f5 Bf7 16.Nd2 Bd6+=) 15...Bc5 (better is 15...de4 16.Qe1 0–0–0 17.de4 Ne7–/+) 16.Bc5= Qc5 17.d4 Qb6 18.ed5 Ne7 (18...cd5 19.Bd5 0–0–0 20.Bf3=) 19.dc6 bc6 20.Re1 Kf7 (20...Qc7 21.Qe2 Kf8 22.Nd2=) 21.Nd2+= Rhe8 22.Nc4 Qc7 23.Qb3 Kf8 (23...Qf4?? 24.Ne5 Kf8 25.Nd7) 24.Qa3 Rad8 25.Re6 (25.Na5+=) 25...Kg8?? (better is 25...c5 26.Ne3 Bf7–/+ (26...cd4?! 27.cd4 Qf4 28.d5+=)) 26.Nd6+/– Rf8 27.Rae1 (27.Qc5!?+/–) 27...Nd5 28.f5 Bh7 (28...Bf7 29.Nf7 Rf7 30.c4+/–) 29.c4 (29.Bd5 cd5 30.Qc5 Qb8 31.Qd5 Kh8+–) 29...Nf4 30.Ne8?? (better is 30.c5 Ne6 31.fe6+=) 30...Qd7 31.Rd6? (31.Qd6 Ne6 32.Qd7 Rd7 33.fe6 Rd4 34.Bc6–+) 31...Rfe8 32.Rd7 Re1 33.Kf2 (33.Kh2 Rd7 34.Bf3 g5 (worse is 34...Bf5 35.Qa5 Re3 36.Qf5 Rd4 37.Kg3–+) 35.fg6 Bg6–+) 33...Re2 (33...Rd7?! 34.Ke1 Ng2 35.Kf2–+) 34.Kf1 Rd7 35.Bc6 (35.Bf3 Ree7 36.Qb4–+) 35...Rd4 36.Bd5 Rd5 37.cd5 Bf5 38.d6 Bh3 (38...h4 39.Qb3 Kh7 40.Kg1 Rg2 41.Kf1 Bh3 42.Qh3 Nh3 43.Kg2 Nf4 44.Kf3–+) 39.Kg1 Rg2 (39...Be6!? 40.Qa7 Ra2 41.Qb7 Rg2 42.Kf1–+) 40.Kh1 Rd2 41.Qa7 (41.Qe3 Rd1 42.Kh2 g5 43.Qe8 Kg7 44.Qe7 Kg6 45.Qe8 Kf5–+) 41...Bg2 42.Kg1 Nh3 43.Kh2 Bf1 (better is 43...Ng5 44.d7 Bc6 45.Kg3 Ne4 46.Kf4 g5 47.Ke3 f5 48.d8Q Rd8–+) 44.Kg3 Rd3?? (better is 44...Rg2 45.Kf3 Ng5 46.Kf4 Rd2 47.Qb8 Kh7–+) 45.Kh2–/+ Rd2 46.Kg3 Ng5 (better is 46...Rg2!? 47.Kf3 Ng5 48.Ke3 Re2 49.Kd4 Rd2 50.Ke3 Rd3 51.Kf2 Bh3–+) 47.d7–/+ h4 48.Kh4 Rh2 (48...Nf7 49.Qa8 Kh7 50.Kg3 Rg2 51.Kf3 Ne5 52.Ke3 Nd7 53.Qe4 g6 54.Qe7 Kh6 55.Qd7 Ra2 56.Qc6 Re2 57.Kd4 Rd2 58.Ke3 Re2 59.Kd4 Rd2 60.Ke3 Re2=) 49.Kg3+= Rg2 50.Kf4 Ne6 (50...Kh7 51.Qe3 Re2 52.d8Q Ne6 53.Qe6 Re6 54.a4+=) 51.Kf5+= Re2 (51...Nd8 52.Qb8 Rd2 53.Qd8 Kh7+/–) 52.Qa8+/– Kh7 53.Qh1 Kg8 54.Qf1 Re5 55.Kg4 Kf7 56.Qc1 Ke7 57.Qc8 Nd8 58.Qa8 (58.a4!?+/–) 58...Kd7+= 59.Qa7 Kc8 60.Qg7 (60.a4!?+=) 60...Rg5= 61.Qg5 fg5 62.Kg5 ½–½. Olcum,Ahmet (2000) – Blagojevic,Tijana (2265), Skopje FYR Macedonia, Karpos Open, 2015.

4.Nf3= e6

5.a4 Bb4?? 6.Bg7 Nf6 7.Bh8 Bf3 8.ef3 +–.

5.a4 Nf6=+ 6.b5 Nbd7 7.d3 (7.e3 Bd6=+) 7...c6 (7...Bf3 8.ef3 Bd6 9.Be2=+) 8.Nc3 (8.g4!? Bg6 9.Bg2=) 8...Bf3–/+ 9.ef3 Bb4 10.Be2?? (better is 10.bc6 d4 11.Ke2 Bc3 12.Bc3 dc3 13.cd7 Qd7 14.Qb1–/+) 10...Qa5–+ 11.Qd2 (11.0–0 Bc3 12.Bc3 Qc3–+) 11...d4 12.Qc1 Bc3 13.Bc3 Qc3 (< 13...dc3 14.bc6 bc6 15.f4–+) 14.Kf1 Nd5 (14...cb5 15.ab5 0–0 16.f4–+) 15.g3 (15.bc6 Qc6 16.f4 Nc3–+) 15...a6 (15...cb5 16.ab5 Qc5 17.Qb2–+) 16.Ra3 Qc5 17.bc6 Qc6 18.Kg2 Rc8 19.Bd1 0–0 (19...b6 20.Re1–+) 20.Rb3 (20.a5 Rc7–+) 20...Nc5 21.c4 (21.Ra3 a5–+) 21…dc3 (22.Rc3 Nc3 23.Qc3 Qd7–+) 0–1. ashoka_theking (1665) – pierre (2185), internet, 2007.

5.b5 Nf6 6.e3 (--> 4.Nf3 Nf6 5.e3 e6 6.b5).

5.c3 Bf3 6.ef3 Bd6 7.d4 (7.c4 dc4 (7...Bb4? 8.Bg7 dc4 9.Bh8+–) 8.Bg7 Be5 9.Be5 f6+–) 7...Nf6=+ 8.Bd3 0–0 9.Qc2 (9.0–0 a5 10.ba5 Nc6=+) 9...Nbd7 (9...a5 10.Ba3–/+) 10.Nd2 (10.0–0 a5 11.Rc1 c6=+) 10...e5 (10...a5 11.ba5 Ra5 12.0–0–/+) 11.de5=+ Ne5 12.Bf5 (12.0–0 Nd3 13.Qd3 a5=+) 12...a5–/+ 13.a3 (13.f4 Ng6–/+) 13...ab4 14.ab4 Ra1 15.Ba1 g6 16.Bd3 (16.f4 Ned7 (16...gf5?! 17.fe5 Be5 18.Qf5=+) 17.Bd7 Qd7–/+) 16...Nd3 17.Qd3 Re8 18.Kd1 Bf8 (18...Qe7 19.c4–/+) 19.Bb2 (19.Re1 Bg7–/+) 19...Bg7 20.Re1 Re1 21.Ke1 Qe7 22.Kf1 Qd6 23.Qe3 Qh2–/+ 24.Qe7 Qd6 25.Qd6= cd6 26.Ke2 Kf8 27.Ke3 b5 28.Nb1 Ne8 29.Na3 Nc7 30.Nc2 Ke8 31.Nd4+= Kd7 32.g3 Kc8 33.Bc1 Kb7 34.Kd3 Kb6 35.Bf4 Bd4+= 36.Kd4 Kc6 37.Be3 Ne6 38.Kd3 g5 39.Bd4 f5 40.Bf6 Kb6 41.h4 h6 42.hg5 hg5 43.Be7 Kc7 44.Ke3 f4 45.Kd3 Kd7 46.Bf6 Kc7 47.Kd2 Kb6 48.Kc2 Kc6 49.Kd1 Kb6 50.Kd2 Kc6 51.Kc2 Kb6 52.Kd1 Kc6 53.Ke2 Kb6 54.Kf1 Kc6 55.gf4 gf4 56.Ke2 Kb7 57.Kd2 Kb6 58.Kd1 Kc7 59.Kc2 Kc6 60.Kd3 ½–½. Mephisto Mondial – SuperConstellation, 1994.

5.c4 Nf6 6.Qa4 Nbd7 (6...c6 7.cd5 (7.b5 dc4 8.Qc4 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1) 7...b5 8.Qd1 Nd5 9.a3 a5 10.Nc3 ab4 11.Nd5; 6...Qd7 7.b5 Bf3 8.gf3 d4 9.Rg1 e5 10.Rg5 Qe6 11.f4) 7.g4 (7.Nc3 dc4 8.Qb5 a5 9.ba5 c6 10.Qc4 Ra5 11.g4) 7...Bg6 8.g5 Nh5 (8...Ne4 9.cd5 ed5 10.Nc3 c6 11.h4) 9.cd5 ed5 10.Nc3 c6 11.b5 Nb6 12.Qg4 (12.Qb3 c5+=) 12...Nc4–/+ 13.Bc1 Bb4 14.bc6 (14.e3 Bc3 15.dc3 Qa5–/+) 14...bc6 15.e3 (15.Qd4 0–0 16.e3 Re8–/+) 15...Bc3 16.dc3 Qa5 17.Nd2 0–0 18.Qd4 Nd2 19.Bd2 (19.Qd2 Be4 20.Rg1 Qc7–/+) 19...Be4–+ 20.Rg1 Qc7 21.f4 c5 22.Qa4 g6 23.Be2 Ng7 24.Rd1 Nf5 25.Kf2 Rab8 26.Bc1 Rfd8 27.Bg4 Nd6 28.Be2 Re8 (28...Kg7 29.h4–+) 29.h4 (29.Bg4 Rb5–+) 29...Qc8 30.Qa6 (30.Qa7 Qh3 31.Qc5 Qh4 32.Kf1 Nf5–+) 30...Qe6 31.Ke1? (better is 31.h5–+) 31...Bc2 32.Bg4 Qe4 33.Qd6 Bd1 34.Bd1 Rb1 35.Qc5 Rc1 36.Kd2 Ra1 37.Bc2 Ra2 38.Rc1 Qg2 39.Kd3 Qf2 40.Qd4 Re4 41.Qc5 Kg7 42.f5 Qf5 43.Kd2 Rg4 44.c4 Rc4 (44...Rc4 45.Qc4 dc4 46.Kc3 Qe5 47.Kb4 Qb2 48.Bb3 Qb3 49.Kc5 Ra5 50.Kc6 Qb6 51.Kd7 Rd5 52.Ke7 Qe3#) 0–1. Gavrijski,Dimitar (2140) – Vegjeleki,Adolf (2195), corr ICCF WSTT/3/06/Final, 2009.

5.Bd4 Bb4? 6.Bg7 Bf3 7.ef3 +– (7.Bh8?! Be4+–; < 7.gf3 Nf6 8.Bh8 Kd7+–).

5.Bd4 Nc6 6.g4 Nd4 7.Nd4 Bg6 –/+.

5.e3 Bb4?? 6.Bg7 Nf6 7.Bh8+–.

5.e3 Bf3 6.Qf3 Nf6 (6...Bb4?? 7.Bg7 Nd7 8.Bh8+–) 7.a3 Be7 8.Bb5 Nc6 9.Bc6 bc6 10.0–0 0–0 11.Nc3 a5 12.b5 (12.ba5 Ra5 13.Rfb1 Qa8=) 12...cb5 13.Nb5 Rb8 14.Bf6 Bf6 15.Rab1 Qd7 16.Qe2 Rfc8 17.Nd4 (17.Na7 Rd8=+) 17...c5 18.Rb8 (18.Nb5!?=+) 18...Rb8–/+ 19.Nb3 c4 20.Nd4 (20.Na5? Qa4 21.Nc4 dc4–+) 20...e5 21.Nf3 Qa4 22.Nh2 (22.e4!? d4 23.c3–/+) 22...Qc2–+ 23.Ng4 Rb6 24.Rd1 Be7 25.Ne5 Rb1 26.Rb1 Qb1 27.Kh2 Ba3 28.Qf3 Qb7 29.e4? (better is 29.g3 Bb4 30.Nc4–+) 29...Bb2 (29...Bd6 30.Qf5 a4 31.f4–+) 30.Ng4 de4 31.Qg3 f6 (32.Kg1 Qb4–+) 0–1. tromar (1620) – wimat, GameColony.com, 2002.

5.e3 Nf6 (--> 4.Nf3 Nf6 5.e3 e6).

5.a3 a5

6.ba5 Bf3 7.ef3 Nf6 8.Bb5 c6 9.Bd3 Bd6 10.0–0 Nbd7 11.a6 ba6 12.Re1 Qb6 13.Bf6 (13.Ra2 0–0=+) 13...Nf6–/+ 14.Nc3 0–0 (14...Qa5 15.Be2–/+) 15.Ne2 (15.Qe2!?–/+) 15...Rfb8 16.c3 c5 (16...Bc5 17.Rf1–/+) 17.c4 Qb3 18.Qb3 Rb3 19.Nc1 Rb6 20.Ne2 Rb2 21.Red1 d4 (21...a5 22.g3–+) 22.Rab1 (22.g3 Rab8–/+) 22...Rab8–+ 23.Rb2 Rb2 24.Nc1 Nd7 25.Kf1 g5 26.Ke2 h5 27.g3 h4 28.Be4 Ne5 29.gh4 gh4 30.Nd3 Nd3 31.Bd3 Bf4 32.Be4 Kf8 33.a4 f5 34.Bc6 Ke7 35.a5 Ra2 36.Bb7 Ra5 37.d3 Ra2 38.Kf1 a5 39.Bc6 Bd2 40.Kg2 Bb4 41.Bb5 a4 42.f4 a3 43.Ba4 Rb2 44.Rc1 a2 45.Ra1 Kf6 46.Bd1 Bd2 47.Kf3 Bf4! 48.Be2 Bd2 49.Bd1 Be1 50.Bc2 Bb4 51.Bd1 Rd2 (52.Bb3 Rd3 53.Kg2 Rb3 54.Ra2 d3–+) 0–1. Rosner,Dirk – Ramos Costa,Antonio Pedro, EM/M/A066 ICCF Email, 1999.

6.e3 Bf3 7.Qf3 ab4 8.ab4 Ra1 9.Ba1 Nf6 (9...Bb4?? 10.Bg7 Nd7 11.Bh8+–) 10.Bf6 gf6 11.c3 Nd7 12.d4 Bd6 13.Bd3 f5 14.0–0 Qa8 15.Qe2 Rg8 16.Rd1 c6 17.Rd2 Qd8 18.Ra2 Qg5 19.Qf3 Kd8 20.Nd2 Kc7 21.b5 c5 22.c4 cd4 23.ed4 Bc5 (better is 23...dc4 24.Rc2 Qf4 25.Qf4 Bf4 26.Nc4 Nb6+=) 24.dc5?? (better is 24.h4 Qg6 25.h5+–) 24...Ne5=+ 25.Qg3 Qg3 26.fg3 Nd3 27.b6 (better is 27.cd5!? Nc5 28.de6 fe6 29.Kh2–/+) 27...Kc6–+ 28.cd5 Kd5 29.Ra5 h6 30.Kh2 Nc5 31.Nb3 Kc6?? (better is 31...Rc8–+) 32.Rc5+/– Kb6 33.Rc4 Rd8 34.Rh4 Rh8 (34...Kb5 35.Nd4 Kc5 36.Nf3+/–) 35.Kg1 (35.g4 fg4 36.Rg4 Kb5+/–) 35...Kc6 36.Na5 Kc7 37.Nc4 f6 38.Kf2 Kc6 39.Na5 Kc7 40.Nb3 b6 41.Nd4 Kd6 42.Ke3 Kd5 43.Rh5 (43...Kc4 44.Ne2+/– (44.Ne6?! Re8=)) 1–0. Ventimiglia,Charles – Miller,Roger, internet, 1998.

5.a3 Nd7

6.e3 Ngf6 7.Be2 c5 8.bc5 Bc5 9.d4 Qb6 10.Qc1 Be7 11.c4 0–0 12.Nbd2 Ne4 13.c5 Qa5 14.0–0?? Rac8 15.Bd3= Bf3 16.Nf3 b6 17.Qc2 bc5 18.Be4 de4 19.Qe4 c4 20.a4 c3 21.Ba3 Ba3 22.Ra3 Qb4 23.Ra2 Nf6 24.Qc2 Qe7 25.e4 Qb7 26.Re1 Rc4 27.a5 Rfc8 28.a6 Qb6 29.Rb1 Rb4 30.Rc1 Qc6 31.Re1 Qb5 32.Rc1 h6 33.Kh2 Rc7 34.Qe2 Qc6 35.e5 Nd5 36.Qe4 Qc4 37.Raa1 Rb2 38.Kg3 c2 39.Kh2 Nc3 40.Qa8 Kh7 41.Qd8 Ne2 42.Nd2 Qd3 43.Qc7 Nc1 44.Nf3 Nb3 45.Qf7 Qg6 (46.Qg6 Kg6–+; 45...Na1?! 46.Ng5 hg5 47.Qh5 Kg8 48.Qe8 Kh7 49.Qh5 Kg8 50.Qe8 Kh7 51.Qh5=) 0–1. Ahrens,Gerhard (1965) – Buettner,Fritz (2180), CiF, 2006.

6.g4 Bg6 7.Rg1 a5 8.b5 Ngf6 9.h4 h6 10.d3 h5 11.g5 Ng4 12.Bh3 Bc5 13.e3 0–0 14.Bg4 hg4 15.Nh2 g3 16.Rg3 Bd6 17.Rg2 Bh7 18.Nd2 c6 19.h5 Bh2 20.Rh2 Qg5 21.Qf3 f6 22.h6 Qg1 23.Nf1 Ne5 24.Be5 fe5 25.Qg2 Qg2 26.Rg2 Rf7 27.bc6 bc6 28.Nh2 e4 29.Ng4 Kf8 30.Ne5 Rb7 31.hg7 Rg7 32.Rg7 Kg7 33.Rb1 Bf5 34.d4 Rh8 35.Rb7 Kf6 36.Rf7 Kg5 37.Ra7 Rh1 38.Kd2 Rf1 39.Ke2 Rc1 40.c4 Rc2 41.Ke1 dc4 42.Kd1 Rf2 43.Ra5 Ra2 44.Nc4 Kh4 45.Kc1 Bh3 46.a4 Bf1 47.Nd6 Bd3 48.Re5 Ra4+= 49.Ne4 Ra2 50.Re6 Kg4 51.Rf6 Be4 52.Rf4 Kg3 53.Re4 Kf3 54.Re6 ½–½. Woelfelschneider,Peter (2155) – Lisakowski,Christof (1960), RSS5D adv–31, 2006.

6.g4 Bg6 7.h4 h5 8.g5 b6 9.Bg2= a5 10.b5 Rc8 11.e3 Ne7 12.Nc3 Nf5 13.e4 de4 14.Ne4 Ne7 15.d3 Nd5 16.Nd4 Ra8? 17.Nc6+– Qc8 18.Ng3 Bd6?? 19.Bg7 Rg8 20.Bb2 Nf4 21.Bf3 Ne5 22.Ne5 (22...Kf8 23.Bc6 Be5 24.Be5+–) 1–0. Wall,Bill – Rampage, internet, 2006.

5.a3 Nf6

6.Nc3 Nbd7 7.Nb5 a5 8.Ne5 c6 9.Nd7 Kd7 10.Nd4 ab4 11.ab4 Bb4 12.Nb3 Qb6 13.Bd4 c5 14.Be5 c4 15.Nd4 Ne4 16.c3 Nc3 17.Qc2 0–1. ulla (1680) – rcm06 (2145), gameknot.com, 2014.

6.d3 c5 7.c3 (7.g4 Bg6=+) 7...Bd6 8.bc5 (8.g4 Bg6=+) 8...Bc5 9.Qb3 0–0 (9...Bf3 10.gf3 Qc7 11.e3=+) 10.Nbd2 (10.g4 Bg6=) 10...Nbd7 (10...b6 11.c4=+) 11.d4 (11.g4 Bg6=) 11...Be7 12.c4 (12.Qb7? Rb8 13.Qa7 Rb2–+) 12...dc4 13.Nc4 Bg6 (13...Rb8 14.Rc1=+) 14.e3 (14.Qb7 a5=) 14...Rc8 (14...Be4 15.Rc1=+) 15.Be2 Be4 16.0–0 Bd5 17.Nfd2 Ne4 18.Ne4= Be4 19.Rfc1 Bd5 20.Qd3 f5 21.Nd2 Rc1 22.Rc1 Nb6 23.Qb5 Bd6 24.Bf3 Rf6 25.Bd5 ed5 26.a4 Qd7 27.Qd7 Nd7 28.a5 Kf7 29.Rc3 b6 30.Ba3 Ba3 31.Ra3 Rc6 32.ab6 Rc1 33.Kh2 ab6 34.Nf3 Rc2 35.Kg3 h6 36.Nh4 Ke6 37.Ng6= Nf6 38.Rb3 Ne4 39.Kh2 Rc6 40.Rb2 Rd6 41.g4 fg4 42.hg4 Nf6 43.f3 Kd7 44.Ne5 Ke7 45.Ra2 Nd7 46.Ra7 Ke8 47.Ra8 Ke7 48.Nd3 Re6= 49.Nf4 Rd6 50.Kg3 Kf7 51.Kf2 Kf6 52.Ra4 g6 53.Kg3 Kf7 54.Ra2 Ke7+= 55.Ra7 Ke8 56.Ra1 Kf7 57.Rh1 g5 58.Nd3 Kg6 59.Rc1 h5 60.Rc7 Kh6 61.gh5 Kh5 62.Rb7 Nf6 63.Ne5 Re6 64.Rb8 Kh6 65.Kf2 Kg7 66.Ke2 Ne8 67.Kd3 Nf6 68.Rd8 Kh7 69.Kc3 Kg7 70.Kb4 Kh7 71.Rb8 Ne8 72.Rb7 Kh6 73.Ka4 Ng7 74.Rf7 Ne8 75.Rf5 Nd6 76.Ng4+– Kh5 77.Rd5 Kh4 78.Re5 Rg6 79.Re7 Kg3 80.Ne5 Rg8 81.e4 g4 82.fg4 Kf4 83.Rd7 Ne4 84.Kb5 Ke3 85.Nc6 Rg4 86.Kb6 Rg6 87.Rd8 Rd6 88.Rd6 Nd6 89.Kc5 Ne4 90.Kd5 ½–½. Baer,Werner – Baumann,Heinz, TT–17.30 ETC, 2005.

6.d3 Bf3 7.ef3 Bd6 8.c4 =+.

6.e3 c5 7.bc5 Bc5 8.c4 (8.Bb5 Nc6=) 8...0–0 9.cd5 (9.Bf6 Qf6 (< 9...gf6 10.Qb3+=) 10.d4 Bb6=) 9...ed5 (9...Nd5 10.Qb3=) 10.Be2 (10.Qb3 Bf3 11.gf3 Nbd7=) 10...Nc6 11.Nc3 d4 (11...Re8 12.0–0=) 12.Na4 b6 13.Rc1 d3 14.Bf1 (14.Nc5 bc5 15.Qa4 Rc8=) 14...Ne4 15.g4 Bg6 16.h4 h6 17.h5 Bh7 18.g5 Ng5 19.Rg1 (< 19.Nc5 bc5 20.Rg1 Ne6 21.Rc5 Qb6=+ (21...Nc5?? 22.Rg7 Kh8 23.Rf7 Kg8 24.Rg7 Kh8 25.Rg6 Nd4 26.Nd4 Bg6 27.Ne6 Kg8 28.Nd8+–)) 19...Qe7 (19...Rb8 20.Ng5 hg5 21.Qg4+= (21.Rc5? bc5 22.f4 Nd4 23.Rg5 Ne6–+)) 20.Ng5+= hg5 21.Qg4 f6 22.Bg2 Rac8 (22...Rfc8 23.Rh1 Rab8 24.Bd5 Kf8 25.h6+/–) 23.Nc5 bc5 24.f4 Rb8 25.Bc6 Rb2 26.fg5 fg5 27.Qg5 Qf6 28.Qf6 (28.Bd5 Kh8 29.Qf6 Rf6= (< 29...gf6 30.Rc5 Rfb8 31.Rc3+/–)) 28...Rf6 29.Bd5 Kh8 30.Rf1 Rf1 31.Kf1 Rd2 32.Rc5 Rc2 33.Rb5 Bf5 34.Bf3 Be6 35.Rb8 Kh7 36.Rd8 (36.Be4 Kh6 37.Bd3 Rc3 38.Rh8 Kg5=) 36...Bc4+= 37.Ke1 Ra2 (37...a5 38.Rd4+=) 38.Rd6 (38.Rd4!? d2 39.Rd2 Ra3 40.Kf2=) 38...Ra3= 39.Kd2 Kg8 40.Bd5 (40.Be4 Kf8=) 40...Bd5=+ 41.Rd5 a5 42.Rb5 (42.e4 Kf7=) 42...a4 (42...Kh7 43.e4=) 43.Ra5 Kf7 44.Ra6 Ke7 45.e4 Kf7 46.Ra7 Kf6 47.e5 Ke5 48.Rg7 Ra1 49.Kd3 Ra3 50.Kc4 Rh3 51.Rd7 Rh4 52.Kc3 (52.Kc5 a3=) 52...Rh5 53.Kb4 Rh4 ½–½. Wantoch_Rekowski,Jacek (1850) – Bortkun,Edmund (1845), corr EM/Koryto1/B, 2004.

6.e3 Bf3 7.Qf3 a5 8.Bf6 Qf6 9.Qf6 gf6 10.b5 Rg8 (10...Bd6 11.d4+=) 11.d4 (11.g3 Bd6+=) 11...Nd7 (11...c5 12.bc6 bc6 13.Nd2+=) 12.c4 (12.g4 c5+=) 12...dc4 13.Bc4 (13.g4!?+=) 13...Rg2=+ 14.Kf1 (14.Be2 Rg5=) 14...Rg6 15.h4 (15.Nd2 f5=+) 15...Be7 (15...Bd6 16.h5 Rg7 17.Bd3=+) 16.h5 (16.Nd2 f5=+) 16...Rg8 17.Rg1 Rg1 18.Kg1 a4 19.Nc3 f5 20.Kf1 Nf6 21.Be2 Ne4 22.Ne4= fe4 23.f3 ef3 24.Bf3 (24...Ra7 25.Rc1=+). pozarski (2040) – Jose_Marcio, GameColony.com, 2002.

6.g4 Bg6 =+.

5.g4 Bg6

6.a3 a5 7.b5 h5 (7...Nf6 8.Bg2=) 8.g5 Nd7 9.d3 f6 (9...c6 10.bc6 bc6 11.Nbd2=) 10.Rg1+= Ne7 11.gf6 gf6 12.Ng5 e5 13.Ne6 Qc8 14.e3 Bh6 15.d4 Kf7 16.Nc5 Nc5 17.dc5 Rd8 18.h4 c6 19.Be2 (19.Bd3 Nf5=) 19...Qh3 (19...cb5 20.Bh5 Qc5 21.Bg6 Ng6 22.Nc3 Be3 23.fe3 Qe3 24.Ne2 Nh4 25.Rg3–/+) 20.Bh5 Qh4 (< 20...cb5 21.Bg6 Ng6 22.Qh5+/–) 21.Bg6 Ng6 22.Qd3 e4 23.Qe2 Rg8 24.bc6 (24.Rf1 Bf8 25.c4 Bc5 26.bc6 bc6 27.cd5 cd5=+) 24...bc6 (24...Ne5 25.Rf1 Nf3 26.Kd1 bc6–/+) 25.Bd4 (better is 25.Rf1!?=+) 25...Ne5 26.Rg8 (26.Rf1!? Nf3 27.Kd1–/+) 26...Rg8–+ (26...Kg8?! 27.Nd2=+) 27.Be5 Rg1 (< 27...fe5 28.Nd2–/+) 28.Kd2 fe5 29.c3?? (29.Kc3 Rg2 30.Kb3 Qf2 31.Qf2 Rf2 32.Nc3 Be3 33.Na4–+) 29...d4 30.cd4 ed4 31.Qc4 Kf8 32.Kc2 d3 33.Kb3 Qf2 34.Ka4 Qc2 35.Qb3 Be3 36.Ra2 Qb3 (37.Kb3 Rb1 38.Ka4 Rc1–+) 0–1. wampo (1925) – therris, GameColony.com, 2002.

6.e3 Nf6 7.h4 Ng4 8.h5 Be4 9.Be2 Nd7 10.Rh4?? (better is 10.a3–/+) 10...Bf3–+ 11.Bf3 (11.Rg4 Bg4 12.Bg4 Bb4 13.h6–+) 11...Nf2 12.Kf2 (12.Qe2 Nd3! 13.Qd3 Qh4 14.Kd1 Qb4–+) 12...Qh4 13.Ke2 0–0–0 (13...Qb4 14.Bc3 Qd6 15.Qf1–+) 14.Nc3 (14.a3 Qh2 15.Kf1 Ne5–+) 14...Qh2 15.Ke1 (15.Kf1 Ne5 16.a3 d4 17.ed4 Qf4 18.de5 Rd2 19.Qd2 Qd2–+ (19...Qf3?! 20.Qf2 Qh3 21.Ke1=)) 15...Ne5 16.Be2 (16.Kf1 Nc4 17.Bc1 Bb4 18.Ne2–+) 16...Be7 17.d4 Nf3! 18.Bf3 (18.Bf3 Bh4 Mate attack) 18…Bh4 (19.Kf1 Qf2) 0–1. milanista – pierre (2115), internet, 2007.

4.Nf3= Bf3

5.gf3 Qd6 6.a3= Nd7 7.e3 0–0–0 (7...Ngf6 8.c4=) 8.c4 (8.Nc3 Kb8=) 8...dc4 9.Bc4 Qg6 10.Kf1 (10.d4 e6=) 10...Nb6 (10...e5 11.Qb3 Nh6 12.Ke2=+) 11.Be2 e6 (11...Nf6 12.d4=) 12.Nc3= Kb8 (12...Rd7 13.d4=) 13.Rc1 Bd6 (13...Ne7 14.Qc2=) 14.Ne4 (14.Nb5 f6=) 14...Ne7 (14...f6 15.Bd4=) 15.Nd6 cd6 16.f4 Rc8 17.Rg1 Rc1 18.Qc1 Qh6 19.Kg2 Rc8 20.Qb1 Qh4 21.Qd3 Nc4 22.Bc3 d5 23.a4 Nf5 24.Bg4 Nfd6 25.Qd4 Ne4–/+ 26.Rf1 g5 27.f5 h5–/+ 28.Bf3 Ned2! 29.Qh4 gh4–+ 30.Bd2 Nd2 31.Rd1 Rg8 32.Bg4 Ne4 33.fe6 fe6 34.f3 Nc3 35.Rc1 Na4 36.Kh2 hg4 37.hg4 Nb2 38.Kh3 Nd3 39.Rb1 Rf8 40.f4 d4! 41.Rb3 Nf2 42.Kh4 d3 43.Rb2 Rh8 44.Kg3 d2! (45.Rd2 Ne4 46.Kf3 Nd2 47.Ke2 Rh2 48.Kd3 Nf1–+) 0–1. RageofKlugman – pierred, ChessWorld.net, 2006.

5.gf3 e6 6.e3 Nf6 7.b5 c5 8.c4 Be7 9.d3 Qd6 10.f4 Nbd7 11.Nd2 Bd8 12.Rg1 g6 13.Qc2 Bc7 14.cd5 ed5 15.Bg2 0–0 16.Kf1 a6 17.a4 ab5 18.ab5 Ra1 19.Ba1 Ra8 20.Qb2 Ra5 21.Bf3 Qb6 Attacks the isolani on b5 22.Bd5 (22.Kg2!? Qb5 23.Nb3 Ra1 24.Ra1–/+) 22...Ra1!–+ 23.Qa1 Nd5 24.Qa8 Kg7 25.Qa4 N7f6 26.Qc4 Qe6 27.Rg3 b6 28.Nf3 h6 29.Nh4 Qd7 30.Rf3 Bb8 31.f5 g5 32.e4 Nf4 33.Ng2 Be5 34.Nf4 gf4 35.h4 Ne8 36.Rh3 Nc7 37.Rh1 Qb5 38.Rg1 Kf8 39.Qc2 f3 40.Qd1 c4 41.Qf3 cd3 42.Qe3 Ke7 43.Qh6?? (better is 43.Kg2–+) 43...d2 44.Kg2 Qe2 45.Qg5 Kd7 (45...Kd7 46.Qe3 Qg4 47.Kh1 Qh4 48.Kg2 Qg4 49.Kh1 d1Q 50.Rd1 Qd1 51.Kg2 b5–+) 0–1. Osmak,Iulija (1875) – Shvayger,Y (2160), ch–UKR g18, Kyiv UKR, 2010.

5.ef3 Nd7

6.a3 Ngf6 7.Be2 e6 8.0–0 c5 9.bc5 Bc5 10.d4 Bd6 11.Nd2 Rc8 12.c4 0–0 13.Bd3 Bb8 14.Rc1 Nh5 15.g3 Qg5 16.h4 Qh6 17.Re1 Nb6 18.cd5 Nd5 19.Ne4 Nhf6 20.Nf6 Qf6 21.Be4 1–0 (withdraw). Rosner – Bennett, corr SOK–98–E004B 1999.

6.d3 Ngf6 7.c4 e6 8.b5 c6 9.a4 Bb4–/+ 10.Nd2 0–0 11.Be2 Re8 12.0–0=+ Nc5 13.Nb3 Nb3 14.Qb3= Bd6 15.Rad1 Nh5 16.Bc1 d4 17.g3 e5 18.f4= Nf4 19.gf4+/– ef4 20.Bf3 Re6 21.Bg4 Rg6–+ 22.f3 f5?? 23.c5+– Kh8 24.cd6 Qd6 25.Rd2 fg4 26.hg4 Rh6 27.Qc2 cb5+/– 28.ab5 Qd7 29.Rh2 Rf6 30.Qb3 Re8+/– 31.Bd2 Re5 32.Rc1 Rf8 33.Qb4 Rfe8 34.Bf4 Rb5 35.Qd2 Rb6 36.Qf2+– Rf8 37.Qh4 g5?? 38.Be5 Kg8 39.Qg5 Rg6 40.Qd2 Rf3 41.Qa2 Rf7 42.Rg2 Re6 43.Rc7 Qe8 44.Rgc2 Rc7?? 45.Rc7 b5 46.Rg7 Kh8 47.Re7 Re5+– 48.Re8 Re8 49.Qa7 Rd8 50.Qb6 Rd7 51.Qb5 Rg7 52.Qe8 Rg8 53.Qe5 Rg7 54.Qd4 Kg8 55.Kf2 Rf7 56.Kg3 Rg7 57.Qd8 Kf7 58.d4 h5 59.Qd5 (59...Kf8 60.g5+–) 1–0. Szymanski,Marcin – Mont Reynaud,Jordy, Wch U10 Bratislava, 1993.

6.Qe2 e6 7.a3 Ngf6 8.Qb5 Qc8 9.Be2 c6 10.Qa4 Bd6 11.0–0 0–0 12.Re1 Qc7 13.Nc3 Nb6 14.Qb3 Bf4 15.Rad1 a5 16.d3 ab4 17.ab4 Kh8 18.Ra1 Ra1 19.Ra1 Rg8 20.Na4 Nbd7 21.Nc5 Nc5 22.bc5 Be5 23.d4 Bh2 24.Kf1 Bf4 25.Ra7 Attacking the backward pawn on b7 25...Rb8 26.Ba6 The pressure on the backward pawn b7 grows 26...Ne4?? (better is 26...ba6 27.Rc7 Bc7+=) 27.fe4+– ba6 (27...de4 28.Rb7 Qd8 29.Qb6+–) 28.Rc7 Bc7 29.Qa4 Bd8 (29...de4 30.Qa6 Kg8 31.Qc6+–) 30.Qc6 Bf6 (30...h6 31.Qd6 Rc8 32.ed5 ed5 33.Qa6+–) 31.ed5 ed5 32.Qd5 Kg8 (32...h6 33.c6 Bd8+–) 33.c6 Rd8 34.Qa5 (34.Qf5 Rf8+–) 34...Ra8 35.c7 h6 36.Qa6! Ra6 (36...Ra6 37.c8Q Double attack (37.c8Q Decoy)) 37.c8Q Kh7 38.Qa6 1–0. Fournier,Frederic (2240) – mandioca (2115), Active, 2002.

5.ef3 e6

6.a3 Nf6 7.Nc3 c5 8.bc5 Bc5 9.Bd3 0–0 10.0–0 Nc6 11.f4 a6 12.Na4 Ba7 13.Rb1 d4 14.Bc1 b5 15.Nb2 Qd5 16.Ra1 Bb8 17.c4=+ bc4 18.Nc4 (Opening the b–file gets Black a lot of play) 18...Bc7 19.g3 Rfb8 20.Bb2 Na5 21.Na5=+ Ba5 22.Rb1 Ne4 23.Be4 Qe4 24.Qa4 Bb6 25.Rfc1 Qd3 26.Ba1 Ba7 27.Rb8 Rb8 28.Rc7 g6 29.Kg2 Bb6 30.Rd7 Bc5 31.Bd4 Qe4 32.Kh2 Bf8 33.d3 Qe1 34.Qc6 Rb1 35.Qg2 Qc1 36.Rd8+/– f5? 37.Be3+– Qc7 38.Qa8 Qe7 39.Qc8 Rb5 40.Rd7 Rc5 41.Qb7 Rb5 42.Re7 Rb7 43.Rb7 Ba3 44.Ra7 (44...a5 45.Bd4+–) 1–0. Rosner,Dirk – Silva,Alcindo Luz Bastos, corr ICCF EM/M/A042, 1998.

6.a3 Nf6 7.c4 Be7 8.Qc2 0–0=+ 9.f4 Nbd7 10.Bd3 dc4 11.Bc4 c5 12.f5=+ ef5 13.0–0 cb4 14.Qf5 Rc8 15.d3 Rc5= 16.Qf3 Ne5 17.Be5 Re5 18.Qb7 Qd4 19.Nd2 Re2 20.Nf3 Qb6+= 21.Qb6 ab6 22.ab4 Bb4= 23.Rfb1 Bc3 24.Ra7 Rb2? 25.Rb2+/– Bb2 26.Ng5 h6 27.Bf7 Kh8 28.Ne6 Rc8 29.Bg6 Be5 30.f4 Bd6 31.g3 Bf8 32.Nf8 Rf8 33.Rb7 Nd5 34.h4 Rc8 35.Kf2 Rf8 36.Ke2 Kg8 (36...b5 37.Be4 Re8 38.Kd2+–) 1–0. Waibel,Ulrich – Henderson,Clive, compuserve, 1996.

6.a3 Nf6 7.f4 c5 8.g4 Qb6 9.Qe2 Nc6 (9...cb4!? 10.ab4 Bb4–/+) 10.f5= 0–0–0 11.g5 Ne4 12.d3 cb4 (12...Nd6 13.fe6 Re8 14.h4+=) 13.de4+= ba3 14.Ba3 (14.Bc1 Nd4 15.Qd3 de4 16.Qc4 (16.Qe4 ef5 17.Qd3 Qc6 18.Ra3 Ba3 19.Na3 Rhe8 20.Be3 Nf3 21.Kd1 f4–+) 16...Qc5 17.Qc5 Bc5 18.Ra2 Nf3 19.Ke2 ef5 20.c3+=) 14...Ba3–+ 15.Na3? (better is 15.c3 Bb2 16.Ra2–+) 15...Qb4 16.Kd1 (16.Qd2 Qe4 17.Qe3 Qh1 18.Nb5–+) 16...Qb2 (16...Qb2 17.e5 Qa1 18.Kd2 Qa3 19.fe6 Qa5 20.Kd1 Qa1 21.Kd2 fe6–+) 0–1. Saering,Patrick (2140) – Muheim,Sebastien (2030), Baden–ch op Badenweiler, 2009.

6.c4 dc4 7.Bc4 Nf6 8.Qb3 Nbd7 9.0–0 (9.f4 Nb6 (9...Qe7 10.a3 Nb6 11.0–0 a5 12.ba5 Nc4 13.Qc4) 10.f5 Nc4 11.Qc4 Qd5 12.Qd5 Nd5 (12...ed5?! 13.Bf6 gf6 14.a3=) 13.fe6 Nb4–/+) 9...Be7 (9...Nb6 10.Re1 (10.d3 Nfd5 11.a3 Qg5 12.Bc1 Nf4 13.Bf4; 10.a3 a5 11.Re1 Bd6 12.Nc3 Nc4 13.Qc4; 10.Rd1 Bd6 11.d3 0–0 12.Nc3 a5 13.ba5) 10...Bd6 11.Nc3 a5 12.ba5 Ra5 13.Ne4; 9...Bd6 10.Nc3 (10.Re1 Nb6 11.Nc3 a5 12.ba5 Ra5 13.Ne4; 10.a3 0–0 11.Re1 a6 12.Bd3 a5 13.Nc3) 10...0–0 11.Rfe1 Be5 12.Rad1 c5 13.Ba3; 9...a6 10.f4 b5 11.Be2 Qe7 12.Bf3 Rd8 13.Re1) 10.d4 (10.Rc1 0–0+= 11.a3 c6 12.f4 Nb6 13.Be2; 10.Re1 0–0 11.Nc3 a6 12.Ne4 Ra7 13.Be6; 10.a3 0–0 11.Re1 c5 12.b5 Nb6 13.d3; 10.Nc3 Nb6 11.d3 0–0 12.Rfe1 c5 13.b5) 10...Nb6+= 11.Bb5 (11.Bd3 0–0 12.Re1 Nbd5 13.a3) 11...c6 12.Be2 (12.Bd3 Nbd5 13.b5 0–0+=) 12...Qd5 (12...0–0+= 13.a3) 13.Qd5 (13.b5!?+=) 13...Nfd5–/+ (13...ed5?! 14.b5+=) 14.a3 Nf4 15.Re1 Ne2 (15...Bf6 16.Nc3–/+) 16.Re2 Bf6 17.Nd2 Na4 (17...0–0–0!?–/+) 18.Ne4+= Ke7 19.Nf6 gf6 (19...Kf6 20.Bc1+=) 20.Rd1 a5 (20...Rad8+=) 21.d5 (21.b5 cb5 22.d5 Rhd8+=) 21...Rhd8 (better is 21...cd5 22.ba5 Ra5–/+) 22.d6+/– Rd6 23.Bf6 Kd7 24.Rd6 Kd6 25.Rd2 Kc7 26.b5 cb5= 27.Be5 Kc6 28.Rd4 Nb6–/+ 29.Kh2 Nc4–+ 30.Kh1?? Nb6 31.Kg1 Nc4 32.Bf6?? Na3–+ 33.Rh4 b4 34.Rh7 b3 35.Rf7 a4 36.Be5 Nc4 37.Rc7 Kd5 38.Bc3 b5 39.Rd7 Kc5 40.Rc7 Kd6 41.Rb7 Kc6 42.Re7 b4! 43.Re6 Kd5 44.Re4 bc3 45.h4 c2 46.Re1 b2 (46...b2 47.Kh2 c1Q 48.Rc1 bc1Q 49.h5 a3 50.f4 Qf4 51.g3 Qf2 52.Kh3 Rg8 53.g4 Ne3 54.g5 Qf3 55.Kh4 Qg4#) 0–1. Jefimow,Bronislaw – Akesson,Ralf (2480), 8th Amplico AIG Life Rapid, 2008.

6.c4 Nf6 7.c5 Be7 8.a3 0–0 (8...d4 9.Qa4 c6 10.Qb3=) 9.Be2 (9.d4 Nh5=) 9...a5 (9...d4=+) 10.Bc3? (Better is 10.d4=) 10...d4–+ 11.Bb2 d3 12.Bf1 ab4 13.ab4 Na6 14.Qb3 Nd5 15.Bd3 Nab4 16.Be2 Ra1–+ 17.Ba1 Bc5 18.0–0?? Nf4 19.Bc4 Qg5 20.g4 Qh4 21.Nc3 Qg3 (22.Kh1 Qg2) 0–1. maaxa – soniaprh1, Live Game Caissa's Web, 2004.

6.Bd3 Nf6 7.a3= c5 8.c3 c4 9.Bc2 Bd6 10.0–0 0–0 11.a4 Bc7 12.Na3 Qd6 13.g3 a6 14.b5 Nh5 15.f4 Nf4 16.gf4 Qf4 17.Kg2 Qh2=+ 18.Kf3 Qh3 19.Ke2 Nd7 20.Rh1 Qg4 21.f3 Qg2–/+ 22.Ke3 Bb6 23.d4 cd3 24.Kd3 Ne5 0–1. boa – JF_, ChessWorld.net, 2004.

6.Bd3 Qg5!? 7.0–0 Bb4 =+.

6.Be2 Nf6 7.a3 Be7 8.0–0 0–0 9.c4 dc4 10.Bc4 Nbd7 11.d4 c6 12.Nc3 b5 13.Bb3 Nb6 14.Ne4 Nfd5 15.Nc5 Rc8 16.Re1 Nf4 17.Re4 Bd6 18.Nb7 Qc7 19.Nd6 Qd6 20.Qd2 Nbd5 21.Bd5 Nd5 22.Rae1 Rce8 23.Rg4 f5 24.Rg3 Rf6 25.h4 Ref8 26.Bc1 Rh6?? (26...f4 27.Rg5=) 27.Rh3 (better is 27.Qh6 Qd7 28.Qe6 Qe6 29.Re6+–) 27...f4+= 28.Re5 Rf5 29.Rf5 ef5 30.Qc2 Rf6 31.g3 (31.h5!?+=) 31...fg3–/+ 32.Rg3 h6 33.Qe2 Nf4 (better is 33...Re6 34.Qc2 Re1 35.Kg2 Qf6–/+) 34.Bf4= Qf4 35.Qe8 Rf8 36.Qe6 Kh7?? (better is 36...Kh8 37.Qe5 Qe5 38.de5 f4=) 37.Qg6 1–0. mr5reasons1 (1620) – cancaloo22 (1655), gameknot.com, 2012.

5.ef3 Nf6

6.a3 Nbd7 7.c4 dc4 8.Bc4 e6 9.Nc3 a5 =.

6.a3 Nbd7 7.d4 e6 8.Bd3 Bd6 9.0–0 Nh5 =+.

6.a3 Nbd7 7.Be2 e6 8.Nc3 c5 9.bc5 Bc5 =+.

6.a3 e6 7.Nc3 a5 8.b5 Bd6 9.Be2 0–0 =+.

6.a3 e6 7.c4 dc4 8.Bc4 Be7 =.

6.a3 e6 7.Bd3 a5 8.0–0 (8.b5!?=+) 8...ab4–/+ 9.ab4 (9.Qe2 Bd6–/+) 9...Ra1 10.Ba1 Bb4 11.c3 (11.Re1 0–0–/+) 11...Bc5 12.Bc2 (12.c4 dc4 13.Qa4 c6 14.Qc4 Qd6–/+) 12...0–0–+ 13.d4 Bd6 14.Nd2 Nbd7 15.c4 b6 (15...Bb4 16.Bd3–/+) 16.Bd3 c6 (16...dc4 17.Nc4 Nd5 18.Nd6 cd6 19.Bb2–/+) 17.Qc2 Qc7 18.cd5 (18.Bc3 c5–/+) 18...ed5 (18...cd5 19.Qb2–+) 19.Re1–/+ Bb4 (19...Ra8 20.Bc3–/+) 20.Rb1 Ra8 21.Nf1 g6 (21...Bd6 22.Ne3–/+) 22.Bb5 Nb8 23.Ne3 Bd6 24.Bd3 Bf8 25.Bc3 Nbd7 26.Rc1 Qf4 27.Be2 Re8 28.g3 Qd6 29.Bf1 Rc8 30.Ra1 h6 31.Bb2 (31.Ba6 Re8–/+) ½–½. Whiterose – pierred, ChessWorld.net, 2006.

6.a3 e6 7.Be2 a5 (7...c5 8.bc5 Bc5 9.Nc3=+) 8.Nc3 (8.b5 Bd6=+) 8...Nbd7 (8...ab4 9.ab4 Ra1 10.Qa1 Bb4=+) 9.0–0 (9.ba5!? Ra5 10.0–0=+) 9...ab4–/+ 10.ab4 Bb4 11.Ra8 Qa8 12.Nb5 Qb8 13.Qb1 (13.c3!? Be7 14.Re1–/+) 13...Bd2–+ 14.Nd4 (14.Rd1 Bf4–+) 14...0–0 15.Nb3 (15.g3 Re8–+) 15...Bf4 16.Bf6 (16.Rd1 Be5–+) 16...Nf6 17.Nd4 (17.g3 Bd6–+) 17...c5 18.Nb5 Qe5 19.Re1 (19.Qd1 Ra8–+) 19...Bd2 20.f4 Qe4 (21.Nd6 Qf4–+) 0–1. savage13 – marekt, chessworld.net, 2007.

6.c4 dc4 7.Bc4 e6 8.0–0 a6 9.Re1 (9.a3!?+=) 9...Bb4+= 10.Qb3 Nc6 11.Nc3 0–0 12.Ne4 Nd5 13.Bd5 Qd5 14.Qe3 Be7 15.Qf4 e5 16.Qf5 f6 17.h4 g6 18.Qh3 f5 19.Ng3 White prepares h5 19...Qd2 20.Re2 Qf4 21.h5 Rad8 22.Rc1 Rd5 23.Rec2 Qh4 24.Qh4 Bh4 25.hg6 hg6 26.Rc6?! (26.Nf1–+) 26...bc6 27.Rc6 Rb8 28.Bc3 Kf7 29.Rc7 (29.Ne2 Rd1 30.Kh2 Bf2 31.Be5 Re1–+) 29...Be7 30.Ne2 Rd1 31.Kh2 Rh8 32.Kg3 f4 33.Nf4 ef4 34.Kf4 Rh5 0–1. Morriss,P (2075) – Van den Doel,E (2560), 122nd ch–SCO, 2015.

6.c4 dc4=+ 7.Bc4 e6 8.0–0 Nbd7 9.a3 Be7 10.d4 (10.Re1 0–0=) 10...0–0=+ 11.Nd2 Nb6 12.Bd3 Nfd5 (12...Nbd5 13.Ne4=+) 13.Ne4 (13.Qc2 h6=) 13...Nf4=+ 14.Bc2 Bd6 (14...a5 15.b5=+) 15.Bc1 Nbd5 16.g3 Nh5 (16...Ng6 17.Re1=) 17.Re1 g6 18.Qd3 Be7 19.Bb2 Ng7 20.Nc5 Rb8 21.Qb3 a6 22.Be4 c6 23.Kg2 Re8 24.Rad1 Bf6 25.Bc1 Re7 26.Be3 Nf5 27.Bb1 (27.g4 Nh4 28.Kg1 Qd6=+) 27...Qc7=+ 28.Ne4 Bg7 29.Nc3? (better is 29.Qc4!?=+) 29...Nde3–+ 30.Re3 Ne3 31.fe3 Rd8 32.f4 a5 33.h4 ab4 34.ab4 Ra8 35.h5 Qd6 36.hg6 hg6 37.Rh1 b6 38.Be4 Rea7 39.b5=+ Ra3 40.Qc4 cb5 41.Nb5 Ra2 42.Kf3 Qd8 43.Ba8 Qa8 44.e4 Bf8 45.Qc3 Ra5 46.d5 Bg7 47.Qc6? ed5?? 48.ed5?? Qd8?? 49.d6?? Rb5!–+ 50.Qb5 Qa8 51.Ke2? Qh1 52.Qe8 Kh7 53.d7 Qg2 54.Ke3 Qg3 55.Ke2 Qg2 56.Ke3 Qg1 57.Ke2 Qg2?? 58.Ke3 Qg3?? 59.Ke2= ½–½. Baranov,Grigory (2290) – Payen,Arnaud (2420), Chigorin mem St Petersburg, 1998.

6.c4 dc4 7.Bc4 e6 8.a3 Bd6 (8...Nbd7 9.Nc3=) 9.Nc3= Be5 10.Qb3 (10.Qe2 Nbd7=) 10...0–0=+ 11.Rd1 (11.Ne4 Nc6=+) 11...Nc6 12.0–0 Nd4 13.Qa2 Nh5 14.Ne4 Qh4 15.Bd4 Bd4 16.d3 (16.Rc1 c6–/+) 16...c6 17.Qd2 e5 (17...Rfd8 18.Rfe1–/+) 18.Qg5 (18.Rfe1!?=+) 18...Qg5–/+ 19.Ng5 b5 20.Bb3 a5 21.Rc1 (21.Rd2 ab4 22.ab4 Nf4–/+) 21...ab4 22.ab4 Ra3 (22...Ra6 23.Rfd1–+) 23.Bf7 Rf7 24.Nf7 Kf7 25.Rfd1 Bc3 26.Kf1 Nf4 27.h4 Nd5 28.Rb1 Nb4 29.Rb4 Bb4 30.d4 ed4 31.Rd4 Ra1 32.Ke2 0–1. jammboy – pierred, ChessWorld.net, 2006.

6.c4 dc4=+ 7.Bc4 e6 8.a3 Be7 9.0–0= 0–0 10.Qe2 (10.f4 c6=) 10...a5 (10...Nc6 11.Rc1=+) 11.b5= Nbd7 12.f4 (12.Re1 Nb6=) 12...Nb6 13.d3 Nfd5 14.Qg4 Bf6 15.Be5 a4 16.Re1 Be5 (16...Rc8 17.Nd2=) 17.fe5 Ne7 (17...Qd7 18.Nd2=) 18.Nd2 (18.Nc3 Nf5=) 18...Nf5 19.Rac1 Qd7 20.Ne4 (20.Nf3 Nc4 21.dc4 Qd3=) 20...Qe7 21.Rc3 Rfd8 22.Ng3 Nh4 (22...Ng3 23.Qg3 Nc4 24.dc4=) 23.d4 Ng6 24.Qe4 Rab8 25.Ba2 Rd7+= 26.Rec1 Kh8 27.Ne2 Qd8 28.g3 Kg8 29.Rc5 Rc8 30.Qf3 Ne7 31.Nf4 Kh8 32.Ne6+/– fe6 33.Be6 c6 34.bc6 bc6 35.Bd7+/– Nd7 36.Rc6 Nc6 37.Rc6 h6 38.Qd5 Nf8 39.Qd6 Ra8 40.Kg2 Qe8 41.Rc7 Qd8 42.Qc6 Ne6= 43.Rd7 Qe8 44.Qd5 Rb8 45.Rd6 Nc7 46.Qc6 Nb5 47.Qe8+/– Re8 48.Rd5 Na3= 49.Ra5 Rd8 50.Kf3 Rd4 51.Ra8 Kh7 ½–½. slogger – marekt, ChessWorld.net, 2007.

6.Bd3 e6=+ (6...Nbd7 7.a3 (7.0–0 e6 8.a3 c5 9.bc5 Bc5=+; 7.b5 e5 8.Bf5 Bd6 9.0–0 0–0=+) 7...e5 8.0–0 Bd6 9.Re1 0–0=+; 6...Nh5 7.g3 e6 8.a3 c5 9.f4 Nf6=+) 7.a3 a5 (7...Bd6 8.0–0 0–0 9.Re1 c5=+) 8.ba5 (8.b5 c5=+ (8...Bd6 9.0–0 0–0=+) 9.0–0 Nh5=+) 8...Bd6 (8...Ra5 9.Qe2=+ (9.0–0 Bd6=+) 9...Bd6=+; 8...Bc5 9.Qe2 0–0=+) 9.0–0 (9.Nc3 0–0=+) 9...0–0 (9...Ra5 10.Nc3=+) 10.Bc3 (10.Nc3 Nh5=+) 10...Nc6 (10...c5 11.Re1=+) 11.a4 (11.a6 ba6 12.Re1 d4–/+) 11...d4 (11...Nb4 12.Qe2–/+) 12.Bb2 Ra5 (12...Nb4–/+) 13.Ba3 (better is 13.Bb5!?=+) 13...Ra4–+ 14.Bb5 (14.Qe2 Nb4–+) 14...Ra5 15.Bc6 bc6 16.Bb2 (16.Re1 Nd5–+) 16...Ra1 17.Ba1 c5 18.Na3 (18.d3 Nd5 19.Nd2 Qg5–+) 18...Nh5 (18...Nd5 19.g3–+) 19.Nc4 Qg5 20.Nd6 cd6 21.c3 (21.g3 Ra8–+) 21...d3 22.Qa4 (22.g3 c4–+) 22...Nf4 23.g3 Ne2 24.Kg2 Qd2 25.Rd1 (25.Qc6 Qc2 26.Qd6–+) 25…Qc2 (26.Qc2 dc2–+) 0–1. Steve20 – marekt, chessworld.net, 2007.

6.Qe2 a6= 7.Bf6 gf6 8.a3 Nc6 9.c3 e5 =.

6.Qe2 Nc6 =.

6.Qe2 Qd6 7.a3 Nbd7 8.Nc3 e6 9.Qb5 0–0–0 =+.

6.Qe2 Qd6 7.Be5 Qb6 8.Nc3 Nbd7 9.Qb5 c6 =.

6.Be2 Nbd7 7.a3 e6 8.d3 Bd6=+ 9.Nd2 c5 10.c4 cb4–/+ 11.a4 a5 12.0–0 h5 13.Re1 g5 14.cd5+= g4 15.de6+/– fe6 16.fg4 hg4 17.Bg4 Ng4?? 18.Qg4 Rf8?? 19.Qe6 Be7 20.Bg7 Rf7 21.Bh6 Qb6 22.Bg5 Qe6 23.Re6 Kf8 24.Be7 Re7 1–0. uno (1780) – guest165, ICC, 2003.

5.gf3 Nf6

6.a3 =+.

6.e3 e6 7.c4 Bb4 8.cd5 Nd5 (< 8...ed5 9.Qa4 Nc6 10.Ba6 ba6 11.Qc6 Ke7 12.Bf6 gf6 13.Nc3 Bc3 14.Qc3=) 9.Rg1 (9.Qb3 a5=+) 9...Bf8 10.Nc3 (10.Bg7?? Bg7 11.d4 Bf8–+) 10...Nc6 11.Qb3 (11.Nd5 Qd5 12.e4 Qd7–/+) 11...Qd7 (11...Ne5!? 12.Ke2 Nb6–/+) 12.Nd5=+ Qd5 13.Bc4 (13.Qb7?? Rb8 14.Qc7 Rb2 15.Qc8 Ke7 16.Qc7 Kf6 17.Qf4 Qf5–+; < 13.Bg7 Qb3 14.ab3 Rg8 15.Bf8 Rg1–+ (< 15...Rf8 16.Bb5+/–; < 15...Kf8 16.Rg8 Kg8 17.d4+=)) 13...Qd7 14.Bc3 (14.Bg7 Rg8 15.Qb2 f5 16.Qb7 Rb8–+) 14...0–0–0 (14...Rb8 15.Rg5=+ (15.Bg7? Rg8–+)) 15.Rb1 b6 16.Qa4 Qd6 17.Bb5 Kb7 18.Qa6 Ka8 19.Rg4 Nb8 20.Qa4 e5 (20...Kb7 21.Rd4 Qe7 22.Rc4=) 21.f4 (21.d4 Qf6=) 21...ef4 22.Rf4 Qg6 23.Rb2 f5 24.Be2 Qg1 25.Bf1 Bd6 (25...Qg6 26.Be5 Bd6 27.Rb6 cb6 28.Rg4+/–) 26.Rf5+= g6 27.Rf6 Rhe8 28.Qg4 Qg4 29.hg4 Nd7 (29...Kb7 30.g5+/–) 30.Rf7+/– Re7 31.Re7 Be7 32.f4 Kb8 33.Bg2 Bf6 (33...Nc5 34.Rb1+=) 34.d4 c5 35.Rd2 (35.g5 cd4 36.ed4 Be7+/–) 35...cd4 36.Bd4 Bd4 37.Rd4 Kc7 38.g5 Nc5 39.Rd8 Kd8 40.Kd2 Ke7 41.Kc3 ½–½. ST_KAOURAS – marekt, ChessWorld.net, 2009.

6.Bf6 ef6 7.Rg1 Qd6 =+.

6.Bg2 e6 7.a3 Nbd7 (7...c5 8.bc5 Bc5 9.e3=+) 8.f4 Bd6 9.e3 0–0 10.d3 a5 11.c3 (11.b5 c6=+) 11...e5 (11...ab4 12.cb4 c5 13.bc5 Nc5 14.Rg1=+) 12.fe5 Ne5 13.0–0 Re8 14.Qc2 (14.Qd2 Qe7=+) 14...Qd7 15.Nd2 (15.c4 Nf3 16.Kh1 Qf5=+) 15...ab4 (15...Qf5 16.e4 Qf4 17.Rfe1 de4 18.de4 ab4 19.cb4=+) 16.cb4 (16.ab4 Ra1 17.Ra1 Qf5=+) 16...Qf5 17.Rad1 Qg6 (< 17...Qd3 18.Qd3 Nd3 19.Bf6 gf6 20.Nb1+/–; 17...Nd3? 18.Nf3 Ne4 19.Rd3+–) 18.Qb3 c6 (< 18...Nd3 19.Bf6 gf6 20.Nb1+/–) 19.e4 Nh5 20.f4 Nd7 21.e5 Be7 (21...Bb8 22.d4=+) 22.Rf3–/+ Qh6 23.Rdf1 Nf8 24.Bd4 Ng6 (24...Bh4 25.Bb6–/+) 25.Be3 Nh4 26.R3f2 Ng3 27.Rb1 Ngf5 28.Bb6 (28.Bc5 Qg6–/+) 28...Ng2 (28...Ng6 29.Rbf1–+) 29.Kg2–/+ Bh4 30.Rf3 Re6 31.b5 Rg6 32.Kf1 cb5 33.Bf2 Bf2 34.Kf2 Qh4 35.Kf1 Ng3 36.Ke1 Ne4 37.Kd1 Rg1 38.Nf1 Qh5 39.Ke2 Rg2 40.Ke3 Nd6! 41.ed6 Re8 (better is 41...d4 42.Ke4 Re8 43.Kd4 Qf3–+) 42.Kd4 Qf3 43.Kc5 Qf4 44.Qb4 Qf2 45.Ne3 Qe3 46.d4 Rc2 47.Kb6 Rc6 48.Kb7 Qe6 49.Kc6 Qc8 50.Kb6 Qb8 51.Kc5 Qa7 52.Kb5 Qd7 53.Ka5 Ra8 54.Kb6 Rb8 55.Kc5 Rc8 56.Kb6 Qc6 57.Ka5 Ra8# 0–1. PeterRs – pierred, ChessWorld.net, 2006.

6.c4 c6

7.Na3 A) 7...e5 8.cd5 (8.Rg1 Bb4 9.cd5 cd5 10.Nc2 Bc5 11.e3 0–0 12.Be5 Nc6=) 8...Nd5 9.Nc4 f6 10.a3 b5 11.Na5 Qb6 12.Nb3 Nd7=; B) 7...a5 8.b5 (8.Qa4 e5 9.b5 Nbd7 10.bc6 bc6 11.Rg1 Qb6 12.Rb1 Rb8+=) 8...e5 9.cd5 cd5 10.Nc2 Nbd7 11.d4 Bd6 12.Rg1 0–0=; C) 7...Nbd7 8.cd5 (8.Rg1 a5 9.b5 e5 10.cd5 cd5 11.Nc2 a4 12.a3 Qb6+=) 8...Nd5 9.b5 cb5 10.Nb5 e5 11.Qb3 Nb4 12.Rc1 Nc6=; D) 7...e6 8.Rg1 (8.cd5 ed5 9.Rg1 Rg8 10.Nc2 Bd6 11.e3 Nbd7 12.a3 a5+=) 8...Rg8 9.cd5 ed5 10.Qb3 Nbd7 11.Nc2 Bd6 12.Nd4 g6+=.

7.Qb3 A) 7...e6 8.Rg1 (8.Nc3 Bd6 9.Rg1 0–0 10.e3 Nbd7 11.c5 Bh2 12.Rg2 Bc7=) 8...Rg8 9.cd5 cd5 10.e3 Nc6 11.b5 Ne7 12.Bf6 gf6=; B) 7...Nbd7 8.e3 (8.cd5 cd5 9.e3 e6 10.Rg1 Rc8 11.Qa4 a6 12.Nc3 Rg8+=) 8...e6 9.Rg1 dc4 10.Bc4 Nb6 11.Be2 Qd6 12.f4 Nbd5=; C) 7...d4 8.e3 (8.f4 e6 9.e3 de3 10.de3 Nbd7 11.Rg1 Qe7 12.a3 0–0–0=) 8...e5 9.f4 de3 10.Qe3 Bb4 11.a3 Be7 12.fe5 Nfd7=; D) 7...dc4 8.Qc4 Nbd7 9.Rg1 e6 10.Nc3 Nb6 11.Qb3 g6 12.Bg2 a5=.

7.Qc2 A) 7...e6 8.c5 (8.Rg1 Nbd7 9.e3 a5 10.cd5 Nd5 11.b5 Rc8 12.Qd1 e5=) 8...Qe7 9.e3 a5 10.a3 Nbd7 11.Rg1 e5 12.d4 ed4=; B) 7...d4 8.e3 (8.Rg1 e5 9.f4 Nbd7 10.e3 de3 11.fe5 ef2 12.Kf2 Nh5+=) 8...e5 9.c5 a5 10.a3 ab4 11.ab4 Ra1 12.Ba1 Nd5=; C) 7...dc4 8.Qc4 (8.Bf6 ef6 9.Qc4 f5 10.Rg1 Nd7 11.Nc3 Qf6 12.b5 Rc8+=) 8...Nbd7 9.Rg1 e6 10.Nc3 Nb6 11.Qb3 g6 12.Bg2 a5=; D) 7...Nbd7 8.Rg1 (8.cd5 cd5 9.Qa4 e6 10.a3 Bd6 11.Qb5 Rb8 12.Qa4 a6+=) 8...e5 9.a3 dc4 10.Qc4 Rg8 11.Nc3 Be7 12.Bg2 Nb6=.

7.c5 A) 7...Nbd7 8.e3 (8.d4 Qc7 9.e3 e6 10.Bd3 Be7 11.Nd2 0–0 12.Qe2 b6+=) 8...e6 9.Nc3 b6 10.d4 Be7 11.b5 Rc8 12.bc6 Nb8=; B) 7...e6 8.Nc3 (8.Rg1 Nbd7 9.e3 Qc7 10.d4 g6 11.Nc3 Bg7 12.b5 e5=) 8...a5 9.a3 ab4 10.ab4 Ra1 11.Qa1 Nbd7 12.d4 b6=; C) 7...Qc7 8.d4 (8.e3 Nbd7 9.d4 e6 10.Bd3 Be7 11.Nd2 0–0 12.Qc2 b6=) 8...Nbd7 9.e3 e6 10.Bd3 b6 11.a3 a5 12.Nc3 Qb7=; D) 7...a5 8.a3 (8.Qa4 e6 9.a3 Nbd7 10.Qc2 ab4 11.ab4 Ra1 12.Ba1 b6+=) 8...Nbd7 9.e3 ab4 10.ab4 Ra1 11.Ba1 e6 12.Rg1 Qc7+=.

7.cd5 cd5 (7...Nd5 8.Rg1 (8.a3 a5 9.e4 Nf4 10.b5 Nd3 11.Bd3 Qd3 12.Qe2 Qd7=) 8...Rg8 9.a3 g6 10.d4 e6 11.e4 Nf4 12.Bc1 Qc7=; 7...Qd5 8.Nc3 (8.a3 a5 9.Nc3 Qd7 10.b5 e6 11.Rg1 Rg8 12.Qc2 h6=) 8...Qd6 9.a3 e5 10.Rg1 a5 11.b5 Rg8 12.bc6 Nc6=) 8.Rg1 (8.a3 Nc6 9.b5 Na5 10.e4 Nc4 11.Bf6 ef6 12.Nc3 Nb6=) 8...e6 (8...Nc6 9.b5 Na5 10.e4 Rc8 11.Qa4 b6 12.d3 e6=) 9.e3 (9.e4 Nbd7 10.a3 de4 11.fe4 Ne4 12.Qf3 Nd6+=) 9...Bb4 (9...Nbd7 10.a3 Rc8 11.Qa4 a6 12.Nc3 e5=) 10.Qb3 (10.Qa4 Nc6 11.Bb5 Qd6 12.Rg7 e5+=) 10...Qe7 (10...Bf8 11.Qb7 Nbd7 12.Bf6 gf6=) 11.Rg7 Nc6 (11...a6 12.a3 Bd6=) 12.Na3 (12.a3 Bd6=) 12...0–0–0 (12...Nh5 13.Rg4 f6 14.Rc1=; 12...Rd8=) 13.Rc1+= Kb8? (better is 13...e5!?+=) 14.Rc6!+– bc6 15.Nc2 (15.Nc2 c5 16.a3+– (16.Nb4?! cb4 17.Qa4 d4=)) 1–0. forsetinn (2215) – toffie62 (1810), gameknot.com, 2014.

7.e3 A) 7...e6 8.c5 (8.Rg1 dc4 9.Bc4 b5 10.Be2 Qd6 11.Bf6 gf6 12.f4 Qb4+=) 8...Nbd7 9.d4 Qc7 10.Bd3 g6 11.Nd2 Bg7 12.b5 e5=; B) 7...Nbd7 8.Rg1 (8.Qb3 dc4 9.Bc4 e6 10.Rg1 Nb6 11.Be2 Rg8 12.b5 c5=) 8...e5 9.a3 a5 10.b5 Qb6 11.cd5 cd5 12.d4 e4=; C) 7...e5 8.Be5 (8.c5 Nbd7 9.d4 ed4 10.Bd4 b6 11.b5 bc5 12.bc6 cd4+=) 8...Bb4 9.cd5 Nbd7 10.Bd4 cd5 11.Bb5 0–0 12.Bd7 Nd7=; D) 7...dc4 8.Bc4 e6 9.Rg1 b5 10.Be2 Qd6 11.Bf6 gf6 12.f4 Qb4+=.

7.Bf6 ef6 8.cd5 (8.Qb3 dc4 9.Qc4 f5 10.Rg1 Nd7 11.Nc3 Qf6 12.Qb3 Bd6+=) 8...Bb4 9.Qb3 Qe7 10.Nc3 Bc3 11.dc3 cd5 12.Rb1 Na6 =.

4.Nf3= Nf6

5.Nc3 e6 6.g4 (6.Na4 Bb4 7.Rb1 Nc6–/+) 6...Bg6 7.a3 Nbd7 (7...a5 8.b5–/+) 8.g5 Ne4 (8...Nh5 9.e3–/+) 9.h4 h6 10.d3 (10.Ne4 de4 11.gh6 Rh6–/+) 10...Nc3 11.Bc3 hg5 12.Ng5 c5 13.Bg2 (13.bc5 Nc5 14.Nf3 Qc7–/+) 13...Qc7 (13...Rc8 14.bc5 Nc5 15.Rb1–/+) 14.Rb1 (14.Bd2 c4–/+) 14...cb4 15.Bb4 Bb4 16.Rb4 (16.ab4 Rc8–/+) 16...a5 17.Rb5 Qc3 18.Qd2 Qa1 19.Qd1 Qa3 20.Rb7 a4 21.c4 Qc3 22.Qd2 Qa1 23.Qd1 Qd1 24.Kd1 a3 25.Kd2 Nf6 (25...a2!? 26.cd5 Rh4–/+) 26.c5 a2 27.Ra1 Rh4 28.Nf3 Rg4 (28...Rha4 29.Ne5–/+) 29.Bh3–/+ Rga4 30.Ne5 Bh5 31.c6 R4a7 32.Ke3? Ng8 33.Rb2 Kd8 34.Rb7 Ne7 35.Kd2 Kc8 36.Rb2 Kc7 37.f4 f6 38.Nd7 Bf7 39.Nc5 Kd6 40.d4 Nc6 41.e3 e5 42.fe5 fe5 43.de5 Ne5 (44.Nb7 Ke7–+) 0–1. Garfield85 (1840) – pierre (2085), internet, 2006.

5.c4 dc4 6.e3 (6.Qc2 b5 (6...Qd5 7.Na3 Nc6 8.b5 Nb4 9.Qa4+=; 6...Bf3 7.gf3 b5 8.Bf6 gf6 9.a4+=) 7.Qf5 c6 8.Bf6 Bg6 9.Qe5–/+; 6.Ne5 Qd5 (6...e6 7.Nc4 Bb4 8.Qa4 Nc6 9.Ne5+=) 7.f3 Nc6 8.e4 Qd6 9.Qa4–/+) 6...e6 (6...Nd5 7.Bc4 Nb4 8.Qb3 e6 9.a3=; 6...b5 7.Nc3 c6 8.a4 e5 9.g4+=; 6...Qd6 7.a3 Qc6 8.d3 cd3 9.Bd3+=) 7.Bc4 Bb4 (7...Nbd7 8.a3 Bd6 9.d4=) 8.Qa4 Nc6 9.Bb5 (9.Ne5=) 9...Qd6 10.Bc6 bc6 11.a3 Bc5 12.Bf6 gf6 13.d4 Bb6 14.Nbd2 Qd5 15.0–0 Rg8 16.e4 Qb5 17.Qc2 0–0–0 18.Kh1 (18.Rab1 Bf3 19.Nf3 Qh5=) 18...Bd4+= 19.Rab1 Bf3 (19...Qc5 20.Qb3 Be5 21.Ne5 fe5 22.Nc4+=) 20.Nf3= Qa6 21.Rfc1 Rd7 (21...Qa3?? 22.Nd4 Rd4 23.Qc6+–) 22.Rb3 Rgd8 23.Nd4 (23.Rcb1 Bb6=) 23...Rd4+= 24.Rcb1 Kd7 25.Qc5 Qc4 (worse is 25...Re4 26.Rd1 Ke8 27.Rd8 Kd8 28.Qf8 Kd7 29.Qf7 Kd6 30.Qf6 Re1 31.Kh2+/–) 26.Qa7 Rd2 (26...Re4? 27.Rd1 Qd5 28.Rd5 cd5 29.Rc3+–) 27.Rb7 Rc8 28.f3 Qc3 29.a4 c5 30.Rg1 Qd4 31.Qb6 (31.Qa6 Ke8=) 31...Qd6 (31...Qa4 32.Qc5 Qc6 33.Qe3+=) 32.Qb5 Ke7 33.Ra7 Rd4 34.Qa5 Rb4 35.Rc1 Attacks the isolani on c5 35...c4 36.f4 Rb3 37.e5 fe5 38.Qe5 (38.fe5 Qc6 39.Kh2 Rb2+=) 38...c3 (38...Qe5 39.fe5 c3 40.a5–/+) 39.a5 (39.Qg5 Kd7 40.Qg3–/+) 39...Qe5–/+ 40.fe5 Kd7 41.Ra6 c5 (41...Rcb8!? 42.Rd1 Kc8–/+) 42.Rd6 (42.Kg1 c4=) 42...Kc7 43.a6 (43.Rf1 Rf8 44.Kh2 Rb2–/+) 43...Ra3 (43...Rb6 44.Rd3 Ra6 45.Rdc3–/+) 44.Rf1 c2 45.Kh2 Kb8 46.Rc1 Ra2 47.Rd7 Rc7 (worse is 47...Ra6 48.Rf7 Rc7 49.Rf6+=) 48.Rd6 Ka7 49.g4 c4 50.Kg3 Ra3 51.Kg2 Rc3 52.Rd2 Ka6 53.h4 Ka5 54.Rd8 Rc5 55.Rb8 Rb5 56.Rf8 Ka4 57.Rf7 Rb1 58.Ra7 Kb3 (58...Kb3 59.Rb7 Ka2 60.Ra7 Kb2 61.Rc2 Rc2 62.Kg3 Rc3 63.Kf4 Rb3 64.Rh7 c3–+) 0–1. garcia2102 (1970) – marekt (2175), gameknot.com, 2015.

5.Bf6 ef6+= 6.e3 (6.a3!?+=) 6...Bb4–/+ 7.c3 Ba5 8.Be2 0–0 9.0–0 c5 10.d4 (10.Qb3 Bb6–/+) 10...c4 11.g4 (11.Nfd2 Be2 12.Qe2 Nc6–/+) 11...Bg6–+ 12.Nh2? (better is 12.Nh4–+) 12...Nc6 13.Kh1 (13.Qc1 f5–+) 13...Re8 14.Qc1 f5 15.Nf3 (15.gf5 Bf5 16.Bg4 Bg4 17.hg4 Bc7–+) 15...fg4 (15...f4 16.ef4 Bb1 17.Rb1 Re2 18.Rb7–+) 16.hg4 Be4 (better is 16...Qd7 17.Rg1 b5–+) 17.Kg2 (17.Kg1–+) 17...Qh4 18.Rh1 (18.Rg1 Qg4 19.Kf1 Qh3 20.Ke1 Bf3 21.Bf3 Qf3–+) 18...Qg4 19.Kh2 (19.Kf1 Bf3 20.Bf3 Qf3 21.Rh4–+) 19...Bc7 (19...Bc7 20.Ne5 Qg2) 0–1. Haroldlee123 – marekt, ChessWorld.net, 2015.

5.g4 Bg6 6.d3 e6 7.g5 Nh5 (worse is 7...Bb4 8.c3 Be7 9.gf6 Bf6 10.Bg2+/–) 8.a3 Bd6 9.e3 h6 10.h4 Nd7 11.c4 c6 12.Be2 Bc7 13.Nbd2 a5 14.Qb3 White prepares the advance b5 14...Qe7 15.Rc1 ab4 16.ab4 f6 17.cd5 ed5 18.b5 Nc5 19.Qc2 Bd6 (19...Ra2!? 20.Qc5 Qc5 21.Rc5 Rb2 22.bc6 bc6 23.gf6 Nf6+/–) 20.Bd4+/– b6 21.bc6 Rc8 22.Bc5 bc5 23.gh6 Rh6 24.Qb3 Qe6 (worse is 24...Rc6 25.Qd5 Qb7 26.Nd4+–) 25.Ne4 Be4 26.de4 Qe4 27.Rd1 Ke7 (27...Rc6 28.Bb5 Kd7 29.Rd5 (29.Bc6?! Kc6 30.Rb1 Kd7+=) 29...Qf3 30.Bc6 Kc6 31.Qa4 Kd5 32.Qa8 Ke6 33.Qf3+–) 28.Qd5 Qd5 29.Rd5 Rc6 30.Nd2 Be5 31.Rg1 g6 32.Bd3 Ke6 33.Bc4 Ke7 34.Bb5 Rc7 35.Bd3 Ke6 36.Bc4 Ke7 37.Rg4 Bc3 38.Re4 Kf8 39.Ke2 Kg7 40.Rd8 Rh8 41.Rh8 Kh8 42.Re8 Kg7 43.Ne4 Bb2 44.Rb8 Ba3 45.Rg8 Kh7 46.Kd3 Rd7 47.Kc2 Re7 48.f3 Rc7 49.Kd3 Rd7 50.Ke2 Rc7 51.Rf8 ½–½. Jenneborg,Seved – Guilloux,Jean Yves (2065), IECG, 2004.

5.e3 Nbd7

6.Bb5 e5 7.Be5 c6 =+.

6.c4 dc4 7.Bc4 e6 8.a3 c5 9.b5 (9.bc5 Bc5 10.Qb3 Bf3 11.gf3 Rc8=) 9...Bd6=+ 10.Be2 0–0 11.0–0 Qe7 12.d4 Rfd8 13.Nbd2 Rac8 (13...Nb6 14.dc5 Bc5 15.Ne5=) 14.e4 (14.Nc4 Bb8 15.Rc1 cd4 16.Nd4 Ne5 17.Ne5 Rc1 18.Qc1 Be5=) 14...Bb8 (14...cd4 15.e5 Ne5 16.Ne5 Be5 17.Bh5 Nh5 18.Qh5=) 15.a4 (15.dc5 Nc5 16.e5 Bf3 17.Bf3 Nfd7–/+) 15...cd4 16.Nd4 Be2 (16...Bg6 17.f3=+) 17.Qe2=+ Ne5 (17...Qb4 18.N2f3=+) 18.N2f3 Nf3 (18...Qb4 19.Rfe1=+) 19.Nf3= (< 19.Qf3 Qb4 20.Nb3 Qe4 21.Qe4 Ne4–/+) 19...Nh5 20.Ba3 Bd6 21.Bb2 (21.Bd6!? Qd6 22.Rfd1=) 21...Nf4=+ 22.Qe3 Nd3 (22...Rc2 23.Be5 Be5 24.Ne5–+) 23.e5 (23.Bg7 Kg7 24.Qa7–+) 23...Bc5 24.Qe2 b6 (24...Rd7 25.Rad1 Rcd8 26.a5=+) 25.Rad1= Nf4 26.Rd8 Rd8 27.Qe4 Nd3 28.Bd4 Bd4 29.Nd4 (29.Qd3?? Bf2 30.Kf2 Rd3–+) 29...Qc5 30.Qd3 (30.Nf3 Rd5=) 30...Rd4=+ 31.Qf3 ½–½. Gross,Wilhelm – Merten,Rainer, xx/16, 1990.

6.c4 c6 7.d4 (7.g4 Bg6=) 7...e6 8.a3 Bd6 9.Nbd2 0–0 10.Be2 Ne4 11.Ne4 de4 12.Nd2 Be2 13.Qe2 f5 14.Nb3 White prepares c5 14...b6 15.c5 Bc7 16.Qc4 Qe7 17.cb6 Nb6 18.Qc6 Bd6 19.Nc5 Rac8 20.Qb5 Nd5 (20...Rf6 21.h4+=) 21.g3 (21.0–0 Rb8 22.Qa4 Rbe8+/–) 21...a5 22.Qc4 (22.Qa5 Bg3 23.fg3 Qg5+/–) 22...ab4 23.ab4 Kh8 (23...Rf6 24.Ra6=) 24.Ra6 (24.0–0 Rf6 25.Rfc1 h5+=) 24...Bg3 (24...Qc7 25.0–0 Qb8+/–) 25.fg3+/– Qg5 26.Qe2 Nb4 27.Kf2 (27.Rb6 Nd3 28.Nd3 ed3+/–) 27...Na6+= 28.Ne6 (better is 28.Na6!? Rf6 29.h4+=) 28...Qh6+= 29.Nf8 Rf8 (29...Nb4!? 30.Rc1 Rf8+=) 30.Kg2 Nb4?? (better is 30...Nc7=) 31.Ba3+– Rb8 32.Rb1 Nc6?? (better is 32...Qa6 33.Qb2 h5 34.Bb4 Rb4 35.Qb4 Qe2 36.Kg1 Qe3 37.Kf1 Qf3 38.Ke1 Qg3 39.Kd2 Qd3 40.Kc1 Qh3+–) 33.Rb8+– Nb8 34.Qb5 Nc6 35.Qf5 Qf6 36.Qe4 h6 37.d5 Nd8 38.h4 (38.Qe7 Nf7+–) 38...Nf7 (38...Qa6 39.Bb4+–) 39.Qe8 (39.Qe6 Kg8+–) 39...Kh7 40.Qe4 Kh8 41.Be7 (41.Qe6!? Kg8+–) 41...Qb2 42.Kh3 Qa1 (42...Kg8 43.Bg5! Qb5 44.Bf4 Qf1 45.Qg2+–) 43.Kg4 Qd1 44.Kf5 Qh5 (44...Kg8 45.d6! Qb3+–) 45.Ke6 Kg8 (45...Nd6 46.Kd6 Qe8 47.Ke6 Qc8 48.Ke5 Qc3 49.Qd4+–) 46.g4 Nd8 47.Bd8 Qe8 (47...Qf7 48.Kd6 Qb7 49.Qe6 Kh7 50.Qf5 Kg8 51.e4+–) 48.Be7 Qc8 49.Ke5 Qc3 50.Qd4 Qa5 51.Ke6 Qa2 52.g5 hg5 (52...h5 53.Qe5 Qc2+–) 53.hg5 Qf2 54.Qf4 Qg2 (54...Qb2 55.Qf8 Kh7 56.g6 Kh6 57.Qf4 Kg6 58.Qf5 Kh6 59.Bg5 Kh5 60.Bf6 Kh6 61.Qg5 Kh7 62.Qg7) 55.Qf8 Kh7 56.Qf5 Kh8 (56...Kg8 57.g6 Qg6 58.Qg6 Kh8 59.Bf8 Kg8 60.Qg7) 57.g6 1–0. Pandurevic,Miro (2310) – Dulic,Grgur (2190), Open Osijek, 2010.

6.c4 e5 7.Be2 =+.

6.c4 e5=+ 7.g4 Bg6 8.cd5 (better is 8.Ne5!? Ne5 9.Be5=) 8...Nd5 9.a3 Bd6 10.Qb3 c6 11.Be2 (11.d3 0–0–/+) 11...0–0 (11...a5 12.Nc3 ab4 13.Nd5 ba3 14.Ba3 cd5 15.Bb2 Ra1 16.Ba1–/+) 12.Nc3 Nc3 13.Qc3 Re8 14.d4 ed4 (14...e4 15.Nd2=+) 15.Nd4 (better is 15.Qd4!? Nf6 16.Rd1+=) 15...Be5=+ 16.f4 Qh4 17.Kd2 (17.Kd1 Bd4 18.Qd4 Nf6=+) 17...Bd4 18.ed4 (18.Qd4 Nf6 19.Kc1 Be4=+) 18...Nf6 19.Kd1 Ne4 20.Qe1 (20.Qc4 Nf2 21.Kd2 Nh1 22.Rh1–+) 20...Nf2 21.Kd2 Bd3!! 22.Bd3 Re1 23.Rhe1 (23.Rae1 Nh1 24.Rh1 Qf2 25.Kc3 Qf4–+) 23…Qh3 (24.Bc4 Qg4–+) 0–1. Gross,Wilhelm – Merten,Rainer, xx/18, 1990.

6.c4 e6 7.a3 c6 8.d4 dc4 (8...a5 9.b5= Be7 10.Nc3 0–0 11.Bd3 Nb6 12.c5 Nc4 13.Bc4 dc4; 8...Be7 9.Nc3 0–0 10.Bd3 a5 11.c5 e5 12.g4 ed4 13.ed4 ab4; 8...Bd6 9.Nc3 0–0 10.cd5 ed5 11.Be2 Nb6 12.Qb3 Ne4 13.Qc2 Ng5; 8...Ne4 9.cd5 ed5 10.Nbd2 Bd6 11.Be2 0–0 12.0–0 a5 13.Ne4 de4) 9.Bc4 Ne4 (9...Nb6 10.Bd3 Bd6 11.0–0 0–0 12.Nbd2 a5 13.Qb3 Nfd5) 10.Nbd2 (10.Qc2 Bg6 11.Bd3 Ng5 12.Nbd2 Bd6 13.e4 0–0) 10...Bf3 (10...Nd2!? 11.Qd2 Bd6= 12.Ne5 Qc7 13.Nd7 Qd7) 11.Nf3+/– (worse is 11.Qf3 Nd2 12.Kd2 Ne5+= 13.Qe2 Nc4) 11...a5 (11...Be7 12.Qc2 Nb6 (12...Ndf6 13.0–0 0–0) 13.Ba6 (13.Qe4?! Nc4 14.Qc2 Nb2=; 13.Bb3 Nd6) 13...Nf2 14.Kf2 (14.Qf2?! ba6 15.Ne5 Bh4=) 14...ba6 15.d5 cd5 16.Bg7+/–; 11...Bd6 12.Qc2 Nef6 13.e4 Be7) 12.Bd3 (12.Qc2 Nb6 13.Bd3 Ng5) 12...Nef6 (12...Ndf6 13.b5 c5) 13.b5 c5 (13...cb5+/–) 14.0–0 cd4 15.Bd4 Bc5 16.Bb2 0–0 17.e4 (17.Rc1 Qe7 18.a4 Rac8+/–) 17...Qe7+= 18.Qe2 (18.Qd2 Rfd8+=) 18...e5 (18...Nh5 19.Qd2=) 19.Nh4 (19.Rfd1 Nh5+=) 19...g6= 20.Bc1 (20.a4!?=) 20...Bd4+= 21.Ra2 Nc5 22.Bg5 Ne6 23.Bh6 Rfd8 24.Nf3 Nh5 25.Rd1 Nhf4 26.Bf4 Nf4 27.Qf1 Rac8 28.Bc4 Rc4!–+ 29.Qc4 Bf2! 30.Kf2 Rd1 31.Rc2 Ne6 32.Qc3–/+ Nd4 33.Qc5 Qd7 34.Nd4+= Qd4 35.Qd4 Rd4 36.Rc7 Rd2 37.Kf1 Ra2 38.Rb7 Ra3 39.Ra7 Ra2 40.b6 Rb2 41.Ra5 Rb6 42.Re5 Rb1 43.Kf2 Rb2 44.Kf3 Ra2 45.h4 Kg7 ½–½. Shen,S (2125) – Purnama,T (2285), Master Open, Singapore SIN, 2004. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Bg4 4.e3 Nbd7 5.h3 Bh5)

6.c4 e6 7.b5 Bd6 8.Nc3 0–0 9.g4 Bg6 10.h4 (10.g5 Ne4 11.cd5 Nc3 12.dc3 Be4+=) 10...h5 (10...dc4 11.Bc4 Nb6+=) 11.cd5 (11.g5 Ne4=) 11...Ng4+= 12.Be2 e5 13.Ng5 Ndf6 14.Qb3 Qe7 15.f3 Nh6 16.e4 Nh7 17.Rg1 Qf6 18.0–0–0 Rfc8 19.f4 (19.Qc4!?+=) 19...Qf4–/+ 20.Ne6 (20.Rdf1 Qh4 21.Nh7 Bh7+=) 20...Qh4–+ (20...fe6 21.Rg6 Qh2 22.Bh5 Qh4 23.Be2+/–) 21.d4 (21.Rh1 Qe7 22.Rdg1 Nf6–+ (22...fe6?! 23.Rg6 Nf8 24.Rg2=)) 21...Ng4 22.Bg4 hg4 23.de5 Be5 (23...fe6?! 24.ed6 cd6 25.de6+=) 24.Nc5 Nf6 (24...c6 25.bc6 bc6 26.d6–+) 25.Nd3 (25.Kb1–+) 25...Ne4 26.Ne4 Bb2 27.Kb2 Be4 28.Ne5 (28.Nb4–+) 28...Qh2 29.Ka3 Qe5 30.Rg4 a6 31.b6 cb6 32.Rdg1 (32.Re4 Qe4 33.Qd3–+) 32...Rc3 33.Rg7 Kh8 34.R7g5 Rb3 35.ab3 Qd6 36.b4 Bg6 0–1. Steffens,Olaf – Maatman,Nick, Groningen Weekendtornooi, 2016.

6.c4 e6 7.c5 c6 8.Be2 Qc7 9.0–0 e5 10.d4 e4 11.Nfd2 Be2 12.Qe2 Be7 13.Nc3 0–0 14.Rfc1 g6 15.a4 Nh5 16.b5 f5 17.a5 a6 18.bc6 bc6 19.f4 ef3 20.Qf3 Bg5 21.Nf1 Ndf6 22.Rc2 Rf7 23.Ne2 Re7 24.Bc1 Rb8 25.Rb2 Ne4 (25...Rb2!? 26.Bb2 Ne4–/+) 26.Rb6= Qc8 27.Rab1 Reb7 28.Bd2 Bd8 29.Be1 Bb6 30.ab6 Ra8 31.Ra1 Qf8 32.Nc1 a5 33.Nb3 Rf7 34.Na5 f4 35.Bh4? fe3–/+ 36.Qe3 Ra5!–+ 37.Ra5 Rf1 38.Kh2 Qb8 39.g3 g5! 40.Qa3 Rf8 41.Ra7 gh4 (41...gh4 42.Qe3 hg3 43.Kg1 Qc8–+) 0–1. Burke,J (2075) – Spivack,S (2185), London Chess Classic FIDE Open, 2010.

6.g4 Bg6 7.g5 Ne4 8.d3 Nd6 9.Nbd2 e5 10.Ne5 Ne5 11.Be5 Qg5 12.Bb2 (12.d4 0–0–0=) 12...Bh5=+ 13.Nf3 Qe7 14.Be2 Nc4 (14...0–0–0 15.a3=) 15.Bd4= Na3 (< 15...Qb4 16.c3 Qe7 17.dc4+/–) 16.c3 Nb5 17.a3 c6 (17...a5 18.Qa4 c6 19.ba5=+) 18.Rg1 Bf3 19.Bf3 0–0–0 (19...a5 20.Rg4=+ (20.Bg7? Rg8–+)) 20.Rb1 (20.Bg4 Kb8=) 20...f5 (20...Re8 21.Rc1= (21.Bg7? Bg7 22.Rg7 Nc3–+)) 21.a4 (21.Qa4 f4 22.Ba7 Kd7+=) 21...Nd4 22.cd4 f4 23.b5 (23.Qc1 fe3 24.fe3 Rd6=) 23...c5 (23...fe3 24.bc6 bc6 25.Qb3+=) 24.Qc1 fe3 25.fe3 Re8 26.Ke2 Kb8 27.dc5 Qe5 (27...Qc5!? 28.Qc5 Bc5+=) 28.c6+/– Ba3 (28...Bd6 29.b6 bc6 30.Rg7+/–) 29.c7 Ka8 30.d4 Qh2 31.Rg2 Bc1 32.Rh2 Re3 33.Kd1 Rf3 34.Rc1 Rc8 35.Ke2 Rf7 36.Rf2 Re7 37.Kd3 b6 38.Rf8 Kb7 39.Rd8 Rcc7 40.Rc7 Kc7 41.Rd5 g6 42.h4 Re1 43.h5 Ra1 44.hg6 hg6 45.Rg5 Ra4 46.Rg6 a6 47.ba6 Ra6 48.Ke4 Ra1 49.Kd5 ½–½. Baer,Werner – Schulz,Hans_Juergen, TT–19.29 ETC, 2005.

6.d4 e6=+

7.a3 Bd6 8.c4 =+.

7.a3 Be7

8.Bd3 Bg6 =+.

8.Be2 0–0 9.Nbd2 Nb6 10.0–0 =.

8.Be2 0–0 9.Nbd2 Nb6 10.Rc1 a5 11.c4 ab4–/+ 12.ab4 Bb4 13.Qb3 Bd2 14.Nd2 Be2 15.Ke2 Na4 16.Ba3–/+ Re8 17.Qb7 Qd7 18.cd5 Nd5 19.Kf3 Nab6 20.e4?? Ra3–+ (21.Ke2 Nc3 22.Kf1 Qd4–+) 0–1. Gross,Wilhelm – Merten,Rainer, xx/14, 1990.

8.Be2 0–0 9.Nbd2 c6 10.c4 a5 11.c5 Qc7 12.0–0 ab4 13.ab4 Ra1 14.Qa1 Ne4 15.Bd3 Bg6 16.Be4 de4 17.Ne1 Rc8 18.Nc2 b5 19.Qa2 Nf6 20.Ra1 Nd5 21.Qa5 Bd8 22.Qc7+= Bc7 23.Ra6 f5 24.Kf1 Be8 25.Nb3 Bb8 26.Na5 Kf8 27.h4 Ke7 28.Nb3 Bh5 29.Ke1 Kd7 30.Ra8 h6 31.Nd2 Kc7 32.Ra2 Kb7 33.Nb3 Bc7 34.Na5= Ba5 35.Ra5 Ra8 36.Ra8 Ka8 37.Kd2 Kb7 38.Bc1 Kc7 39.Ba3 Kd7 40.Bc1 Ke7 41.Ba3 Kf6 42.Bc1 Bg4=+ ½–½. Fiedler,Reinhard – Morin,Jay, corr SOK–89–29, 1989.

8.Be2 a5 9.b5 =+.

6.Be2 e6

7.a3 c5 8.bc5 Bc5 9.0–0 0–0 10.Ne5 Be2 11.Qe2 Rc8 12.Nd7 Nd7 13.Rc1 Qb6 14.Bc3 e5 15.d3 d4–/+ 16.Bd2? Qb2–+ 17.ed4 ed4 18.Qg4 Nf6 19.Qg3 Qa1 20.Bh6 Ne8 21.Qg4 Rc6 22.Bd2 Nf6 (23.Qf3 Ba3 24.Na3 Qa3–+) 0–1. kostovist (1615) – pierre (1985), internet, 2006.

7.a3 c5 8.bc5 Bc5 9.0–0 Qb6 10.Ra2 0–0 11.d4 Be7 12.Nbd2 Rac8 13.c4 Qd8 14.cd5= ed5 15.Ne5 Be2=+ 16.Qe2 Rc2 17.Qd3 Qc7 18.f4 Rc8–/+ 19.Nd7 Nd7 20.Nf3 Qb6 21.Rf2 R2c7 22.Ra1 Nf6 23.Rd1 Ne4–+ 24.Re2 Qh6 25.Nd2–/+ Ng3 26.Rf2 Bh4 27.Rf3 Rc2 28.Qb5? Qg6?? 29.Qb7–/+ Ne4 30.Ne4?? Qg2# (30...Qe4?! 31.Rd2=+) 0–1. Gross,Wilhelm – Merten,Rainer, xxi/06, 1991.

7.a3 c5 8.bc5 Bc5 9.Nc3 0–0 =.

7.a3 c5 8.bc5 Bc5 9.d3 Qb6 10.Qc1 Rc8 11.Nc3 Bf3 12.Bf3 d4 13.Ne4 Ne4 14.Be4 de3 15.Bg7 ef2 16.Ke2 Rg8 17.Rb1 Qa5 18.Qh6=+ Bb6 19.c4 Qc5 20.Rb6?? Nb6–/+ 21.Qh7 Rg7 22.Qg7+= Rc7 23.Qf6 Na4 24.Rb1 b6 25.Rb4+/– b5? 26.Rb5+– Qe7? 27.Rb8 Kd7 28.Qd4 Qd6 29.Rd8! (29...Kd8 30.Qd6 Rd7 31.Qb8 Ke7 32.Qb4 Kd8 33.Qa4+–) 1–0. Gross,Wilhelm – Merten,Rainer, xix/16, 1990.

7.a3 c6 8.0–0 Bd6 9.c4 Bf3 10.gf3 dc4 11.Bc4 g5 12.Nc3=+ Rg8 (13.d4 h5=+). golly1 – michaelbuss, ChessWorld.net, 2007.

5.e3 e6

6.a3 a5 7.b5 Bd6 8.c4 0–0 9.d4 Nbd7 10.c5 Be7 11.Bd3 Ne4 12.Qc2 f5 13.c6 bc6 14.bc6 Nb8 15.Ne5 Bd6 16.Nc3 Qg5 (16...Be5 17.de5 Nc6 18.Ne4 de4 19.Be4 fe4 20.Qc6 Qd3 21.g4 Rad8 22.Qc3 Bg6 23.Qd3 ed3 24.Bc3 Be4 25.Rg1 a4 26.f4 c5 27.Kd2) 17.Kf1 (17.g4 Nf2 (17...Be5 18.de5 Nc3 19.Bc3 Bg6) 18.Qf2 fg4) 17...Nc3 (17...Be5 18.de5 Na6 (18...Nc3 19.Qc3 Be8 20.Bb5 f4=+; 18...Nc6 19.Nd5 Ne5 20.Be4 fe4 21.h4 Qd8 22.Qc7 Qc7 23.Nc7 Ng4 24.Na8 Rf2 25.Kg1 Rb2 26.Rh3 Re2 27.Rg3 Ne3 28.Rb1 Nf5 29.Rg5=; 18...Bg6 19.Ne2=; 18...Be8 19.Nb5 Na6 20.Nd4 Bf7=) 19.Nb5) 18.Qc3 f4 (18...Be5 19.de5 f4 (19...Be8) 20.e4=+) 19.e4 (19.ef4 Qf4 20.Qc2 Be5 21.de5 Nc6 22.Bh7 Kh8 23.g4 Be8–+) 19...Be5 (19...f3 A) 20.Nf3!? Bf3 21.gf3 Rf3=+; B) 20.g3 Be5 21.de5 d4 22.Qd4 B1) 22...Rd8 23.Qc3 Nc6 24.Rd1unclear (24.Qc6 Qd2 25.Bc3 Qd3 26.Kg1=+); B2) 22...Nc6 23.Qc4 Ne5 24.Qe6 Nf7 25.Bc4 Kh8=; C) 20.g4 Be5 21.de5 de4 22.Be4 Bg6 23.Bc1 Qd8 24.Bg6 hg6 25.Be3 Qd5 26.Rc1 Ra6 27.Qd4 Nc6 28.Qd5 ed5 29.e6 Re8 30.Rg1 Re6 31.Rg3 d4 32.Bf4 Rf6 33.Bc7 d3–+) 20.de5 f3 (20...Qd8=+ 21.ed5 Qd5 22.Qc2 Bg6 23.Bg6 hg6 24.Kg1 Ra6 25.Kh2 Rc6 26.Qg6 Qd2 27.Rac1 Qf2 28.Rc6 Nc6 29.Qe6 Kh8 30.Rg1 Qb2 31.Qc6 Qe5 32.Qf3 Rd8 33.Rc1 c5 34.Qf2 Rc8) 21.g3 d4 (21...de4 22.Be4 Rd8 23.Re1 Qd2 24.Qd2 Rd2 25.Bc1 Rd4 26.g4 Be8 27.Bf3 Bc6 28.Bg2 Kf7=) 22.Qd4 (22.Qc4 Ra6 23.Re1 Rc6 24.Qd4 Rd8 25.Qe3 Qe3 26.Re3 Rb6 27.Bc3 Rb3 28.Bc2 Ra3–/+ 29.g4 Bg6 30.Rf3 Nc6 31.Kg2 Nb4 32.Bb4 ab4 33.Ra3 ba3 34.Ra1 Rd2 35.Bb3 Be4 36.Kf1 Bd5 37.Bd5 Rd5 38.Ra3 Re5 39.Ra7 Rc5 40.Ke2 Kf7 41.f4 Rc3 42.h4 Kf6 43.Ra8 c5 44.Rf8 Ke7 45.Rg8 Kf7 46.Rc8) 22...Nc6 23.Qc4 (23.Qc3 Rab8 (23...Rfd8 24.Qc6?! Qd2 25.Bc3 Qd3 26.Kg1 Bg6 27.Qe6 Kh8 28.Rc1 Be4=+)) 23...Rad8 (23...Rab8 24.Bc3 (24.Qe6 Bf7 25.Qc6 Rb2 26.Rd1 Qe5 27.Kg1 Kh8–/+) 24...Rb6 25.Kg1; 23...Ne5 24.Qe6 Nf7 25.Bc4 Kh8 26.Qd5 Qh6=) 24.Qe6 Kh8 (24...Bf7 25.Qc6 Rd3 (25...Qd2 26.Bc3 Qd3 27.Kg1 Rfe8+=) A) 26.Bc3? Rfd8 (26...Qe7 27.Kg1 Rfd8 28.Kh2 Be8 29.Qc4 Bf7=) 27.Qc7 Rd1 28.Rd1 Rd1 29.Be1 Be6 30.Qb8 Kf7 31.Qc7 Kg6 32.Qc6 Qe5–+; B) 26.e6! Qd2 27.ef7 Rf7 28.Qe8 Rf8 29.Qe6 Rf7 (29...Kh8 30.Bg7 Kg7 31.Qe5 Kh6 32.Kg1 Qc3 33.Qc3 Rc3 34.Kh2 Rc2 35.Rhf1+=) 30.Qe8 Rf8 31.Qe6 Rf7=) 25.Rd1 (25.Qc6 Rd3 A) 26.Bc3 Qe7 (26...Rfd8 27.Re1 Qe7 28.Ba5 Rd1 29.Qc7 Qc7 30.Bc7 Re1 31.Ke1 Rc8 32.Kd2 Rc7 33.Ke3 g5 34.h4 Rc3 35.Kd4 Ra3 36.hg5 Bg6 37.e6 Kg7 38.Ke5 Ra5 39.Kf4 Kf8 40.Kf3 Re5 41.Re1 Rg5 42.Kf4 Rc5=) 27.e6 (27.Kg1 Rfd8 28.Kh2 Be8 29.Qc4 Bf7 30.Qc6 Be8=) 27...Rd6 28.Qa4 Bg6 29.Qa5 c5 30.Kg1 Be4 31.Kh2 Re6 32.Rhe1 Rh6 33.Qb5 Qe6 34.h4 Qg4 35.Qf1 Bf5 36.Be5 c4 37.Rad1 Bd3 38.Qh3 Qg6 39.Bc3 Qf7; B) 26.Re1 Qd2 (26...Qe7 27.e6 Be8 28.Qc4 Rd6 29.Qc5 Re6 30.Qe7 Re7 31.Bc3 Bb5 32.Kg1 Be2 33.Ba5 Ra8 34.Bb4 Re4=) 27.Qc1 Qc1 28.Bc1 (28.Rc1) 28...Re8 29.Kg1 Re5 30.Re3 Re3 31.Be3 c5) 25...Nd4 26.h4 Ne6 (26...Qg3 27.fg3 Ne6 28.Kf2+=) 27.hg5 Nc5 28.Rh5 Rd3 29.Re1 Rb3 (29...Rb8 30.Bc1 Rc3 31.Bd2 Rc2 32.Be3 Nd3 33.Rd1 Rcb2 34.Kg1 Rb1 35.Rb1 Rb1 36.Kh2 Ne5 37.Bd4 Ng6 38.g4 Rb3 39.Kg3 Ra3 40.Rh1 Kg8 41.Rc1 Ra4 42.Bb2 Rb4 43.Ba1 Rb7 44.Rc4 Kf7 45.Bc3 Nf8 46.Ba5 Ne6 47.Kf3 c5 48.Bd2 Rb3 49.Ke2 Rb1 50.f4 Rb3 51.Be3 Rb2 52.Kd3 Rb3 53.Rc3 Rb8+–) 30.Bd4 (30.Ba1 Kg8=+) 30...Nd3 31.Rd1 c5 32.Be3 c4 33.g6 c3 34.e6 (34.Rh7 Kg8–+) 34...c2 35.Rc1 Nc1 36.e7 Re8 37.Rf5 hg6 38.Rf8 Kh7 39.Re8 Ne2 40.Ke1 0–1. Boronka,Joseph – Pommerel,Wim, TKM/SF/01, 2001.

6.a3 a5 7.b5 Nbd7 8.c4 dc4 9.Bc4 Bd6 10.d4 c5 11.bc6 bc6 12.Nbd2 Rb8 13.Bc3 Nd5 14.Qc2 0–0 15.0–0 Nc3 16.Qc3 c5 17.Rab1 Bf3 18.Nf3 cd4 19.Nd4 Rc8 20.Rfc1 Be5 21.Qd2 Nc5 22.Rb5 Qf6 23.Nf3 Ne4 24.Qd3 Bb2 25.Rb1 Nc5 26.Qc2 Ba3 27.Ra5 Ra8 28.Ra8 Ra8 29.Nd4 Qd8 30.Be2 Nd7 31.Rd1 Qe7 32.Bf3 Re8 33.Nc6 Qc5 34.Qb3 Nf6 35.Ra1 Nd5 36.Bd5 ed5 37.Nd4 Bb4 38.Rb1 Bd2 39.Qb5 Qb5 40.Rb5 Ra8 41.Rd5 g6 42.Rd7 Ra1 43.Kh2 Ra2 44.Nf3 Bc3 45.Kg3 h6 46.Rc7 Bb4 47.Rc6 Kf8 48.Ne5 h5 49.Kf3 Be7 50.Rb6 Rd2 51.Rb7 Rd5 52.Nc6 Bf6 53.Ke2 Bc3 54.e4 Rd6 55.Rc7 Rd2 56.Ke3 Rb2 57.Rd7 Be1 58.f4 Rg2 59.Ne5 Ke8 60.Rf7 Rg3 61.Ke2 Bc3 62.Rf6 Be5 63.fe5 g5 64.Rf5 ½–½. Louro,Eugenio (2110) – Schulz,Hans_Juergen (2145), remoteschach.de, 2006.

6.a3 a5 7.g4 Bg6 8.b5 Nbd7 9.Nh4 Be4 10.Ng2 Nc5 11.d3 Bg6 12.Nf4 Na4 13.Bd4 Bd6 14.g5 Nd7 15.Bg7 Rg8 16.Bh6 (worse is 16.Ng6 Rg7 17.Nf4 Rg5–/+) 16...Bf4 17.ef4 Ndb6 18.Qc1 Qd7 19.Nd2 Qb5 20.Bg2 0–0–0 21.0–0 Nc3 22.Re1 d4 23.Kh2 Nbd5 24.a4 Qb4 25.Nc4 Bh5 26.Qd2 b6 27.Ra3 Rg6 28.Raa1 Qc5 29.Ne5 Rgg8 30.Bh1 Ne7 31.Be4 Nf5 32.Bf5 ef5 33.f3 Qd5 34.Qf2 Rd6 35.Nc4 Re6 36.Re6 fe6 37.Kg3 Be8 38.Nb2 Kb7 39.h4 Bc6 40.Qf1 e5 41.fe5 Qe5 42.Kh3 Qf4 43.Re1 Bf3 (43...Bf3 44.Qf2 Ne2–+) 0–1. Louro,Eugenio (1645) – Martucci,Massimo (1895), BI–2010–P–00024, 2010.

6.a3 a6 7.c4 Be7 8.d4 Ne4 9.Be2 0–0 10.Nbd2 f5 11.Qc2 c6 12.0–0 Nd7 13.c5 h6 14.Nb3 g5? (14...Qc7 15.Rae1=) 15.Ne5 (better is 15.Ng5!? Bg5 16.Bh5+–) 15...Be2+= 16.Nd7 Bf1 17.Nf8 Qf8 18.Rf1 g4 19.hg4 fg4 20.f3 Bg5 21.Bc1 (21.fe4? Be3 22.Rf2 g3–+ (worse is 22...Qf2 23.Qf2 Bf2 24.Kf2+=)) 21...gf3 22.Rf3 Qg7 23.Nd2 Nf6 24.Nf1 Ne4 25.Ng3 Ng3 26.Rg3 Rf8 27.Qe2 Kh8 28.Qg4 Rf5 29.Kh2 Qc7 30.Qh5 Kh7 31.Kh3?? (better is 31.a4=) 31...Rf1–+ 32.Kg4 (32.Rg5 Rh1 33.Kg4 Rh5 34.Rh5 Qg7 35.Kh3–+) 32...e5 (better is 32...Qg7 33.Kh3 Rh1 34.Kg4 Bh4 35.Kf3 Qg3 36.Ke2 Qg2 37.Kd3 Qe4 38.Kd2 Be1 39.Ke2 Qc2 40.Bd2 Qd2 41.Kf3 Rf1 42.Kg4 Qg2) 33.Rf3 Qd7 (better is 33...Qc8!? 34.Kg3 Rc1 35.de5 Ra1–+) 34.Kg3–/+ Rf3 35.gf3 Qf5 36.de5?? (36.Qe8 ed4 37.f4=) 36...Bf4!!–+ (36...Qe5?! 37.Kg2=) 37.Kh4 (37.ef4 Qh5 Discovered attack) 37...Bg3!! (37...Bg3 38.Kg3 Qh5–+) 0–1. Evstratenko,Vasily (1745) – Korobkov,Vadim, Novosibirsk March op, 2008.

6.a3 Bd6 7.Nc3 =.

6.a3 Be7 7.c4 (7.g4 Bg6=) 7...c6 (7...0–0 8.Bf6 Bf6 9.d4=+) 8.cd5 cd5 9.Qa4 (9.Bb5 Nc6=) 9...Nbd7 10.Ne5 0–0 11.f4? (better is 11.Nd7 Nd7 12.Bb5=+) 11...Ne5 12.d3? (better is 12.Be5 Ne4 13.Bb5–+) 12...Nc6 13.Nd2 Qb6 14.Kf2 Nd7 15.g4 Bg6 16.h4 h5 17.gh5 Bh5 18.Be2 Be2 19.Ke2 Bf6 20.Qb3 Ne7 21.Rag1 Nf5 22.Nf1 Qd8 23.Ng3 Bb2 24.Qb2 Qf6 25.Qb1 Rac8 26.e4 Rc2! 27.Ke1 Rfc8 (28.Ne2 Nd4–+; 27...Qc3 28.Kd1 Ne3#) 0–1. Coquelle,A – Guadalpi,D, corr France juniors, 1992.

6.a3 Bg6 7.Ne5 a5. woschkat (2470) (+) – rcastaneda (2835), net–chess.com, 2003.

6.b5 c5 7.c4 (7.bc6 Nc6 8.Nc3 Be7=+) 7...Nbd7 (7...Be7 8.cd5 ed5 9.Be2=) 8.a4 (8.cd5 ed5 9.Nc3 Ne5=) 8...Nb6 9.Na3 Be7 (9...Bf3 10.Qf3 Ne4 11.Qd1=) 10.a5 (10.Be2 Nc4 11.Nc4 dc4=) 10...Nc8 11.cd5 (11.Qa4 0–0=) 11...ed5 (< 11...Qa5 12.de6 0–0 13.ef7 Bf7 14.Qc2+/–) 12.a6 (12.Qa4 0–0=) 12...ba6=+ 13.ba6 (13.g4 Bg6=+) 13...0–0 14.Bb5 (14.g4 Bg6=+) 14...Rb8 15.Be5 (15.g4 Nd6 16.Ne5 Rb6–/+ (< 16...Rb5 17.Nb5 Nb5 18.gh5+=)) 15...Rb6 (15...Bd6 16.Bd6 Nd6 17.Be2–/+) 16.Bc3=+ Re6 17.g4 (17.0–0 Ne4=+) 17...Bg6–/+ 18.Ng5 (better is 18.Bb2–/+) 18...d4 (better is 18...Rd6!? 19.d4 c4–/+) 19.Ne6= fe6 20.Bb2 Ne4 (20...Nd6 21.Qb3 Nfe4 22.ed4 Nb5 A) 23.Qb5? Nf2 (23...Rf2?! 24.Nc4–/+; 23...cd4?! 24.Qe5 Nf2 25.0–0 Nh3 26.Kg2–+) 24.0–0 Bd3–+; B) < 23.Qe6 Bf7 24.Qe4 Na3 25.Ra3 Bd5–/+; C) 23.Nb5=) 21.0–0+= Bd6 (better is 21...de3!? 22.fe3 Qd6 23.Rf8 Bf8+=) 22.f4+/– Qh4 23.Rf3 h5 (23...Nb6 24.Nc4 (24.ed4 Rf4 25.Rc1 Nd2 26.Qd2 Rf3–+) 24...Rb8 25.Qc1+/–) 24.Bc4 Kf7 (24...Bf7 25.g5 (25.ed4 hg4 26.Qe1 Nd2–/+) 25...e5 26.d3 Bc4 27.Nc4 (< 27.dc4 ef4 28.ed4 Ng5–/+; 27.de4?! Ba6 28.Qb3 Kh8=) 27...ef4 28.de4 Qg5 29.Kh1 fe3 30.e5+–) 25.g5 Bf5 26.Kg2?? Bg4 27.d3 Bf3–+ 28.Qf3 Ng5! 29.Qg3 Qg3 30.Kg3 de3 31.Nb5 Bb8 32.h4?? Kg6 33.Be5 Be5 34.fe5 Nf3 35.d4 Nd4 36.Nd4 cd4 37.Be6 Nb6 38.Bb3 d3 39.Re1 e2 40.e6 Nd5!? (41.Kg2 Kh6–+) 0–1. Johansson,Roland – Taepp,L, corr SSKK Sweden, 1986.

6.b5 Bd6 7.c4 Qe7 (7...0–0 8.cd5 Nd5 9.e4=+) 8.Be2 (8.cd5 ed5 9.Bf6 Qf6=) 8...Nbd7 (8...dc4 9.g4 Bg6 10.g5=+) 9.cd5= ed5 10.0–0 0–0 11.d4 (11.Nc3 Bf3 12.Bf3 Qe5=) 11...Ne4 (11...Rfe8 12.Nc3=+) 12.Nc3 (12.Qb3 Nb6=) 12...Ndf6=+ 13.Qc2 (13.Qb3 Qe6 14.Ne4 Ne4=+) 13...Rac8 (13...Rfe8 14.Rfc1=+) 14.Rac1 Nc3 (14...Rfe8 15.Qa4=+) 15.Bc3 (15.Qc3 Ne4 16.Qc2 Rfe8=+) 15...Ne4 16.Qb3 c6 17.bc6 bc6 18.Ba5 Ng5 (18...Rfe8 19.Rfe1=+) 19.Ng5= Be2 (< 19...Qg5 20.Bh5 Qh5 21.Qb7+=) 20.Qc2 Qg5 21.Qe2 Rfe8 (21...Qf6 22.Qa6=) 22.Qa6 Qf6 (22...Qg6 23.Qa7 (23.Rc6?? Rc6 24.Qa7 Ra6–+) 23...Ra8 24.Qd7=) 23.Rfd1 (23.Kh1 Qe6+=) 23...c5 (better is 23...Qe6!?=) 24.Qb7+/– (24.Qa7?! Re7 25.Qb6 c4=) 24...Rc6 (24...c4 25.Qd5 Qe6 26.Qe6 fe6 27.Bc3+/–) 25.dc5 (25.Qc6?! Bh2 26.Kh2 Qc6 27.Rc5 Qd7+=) 25...Rb8? (25...Rc5 26.Rc5 Bc5 27.Qd5+/–) 26.Qd7 (better is 26.Qa7 Ra6 27.Qd7+– (27.Qa6?! Bh2 28.Kh2 Qa6+–)) 26...Rc5+/– 27.Rc5 Bc5 28.Qd5 Bb6 29.Bb6 Qb6 30.Qd6 g6 31.Qb6 Rb6 32.Rd2 h5 33.Rd4 Rb1 34.Kh2 Rb2 35.Ra4 Rf2 36.Kg3 Rc2 37.Ra7 h4 38.Kf3 Kg7 39.a4 Kf6 40.a5 Ra2 41.a6 g5 42.Ra8 Kf5 43.a7 Kf6 44.e4 Kg7 45.Kg4 (45...f6 46.Kf5+–; 45.e5 Ra4+–) 1–0. Johansson,Roland – Taepp,L, corr SSKK Sweden, 1988.

6.b5 Bd6 7.Be2 0–0 8.0–0 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 c5 (11...Nbd7 12.d3=+) 12.c4= Ne4 (12...Qe7 13.d4=) 13.d3 Nf6. algernon (2400) – rcastaneda (2835), net–chess.com, 2003.

6.b5 Bd6 7.g4 Bg6 8.Nc3 Nbd7 9.Rg1 Qe7 10.Nh4 Ba3 11.Ba3 Qa3 12.Qc1 Qd6 13.g5 Ne4 14.Qb2 Nc3 15.Qc3 0–0 16.Be2 e5 17.0–0–0 Nc5 18.Ng6 fg6 19.f3 a6 20.d4 ed4 21.Qd4 c6 22.bc6 bc6 23.e4 Rab8 24.Qe3 Rfe8 25.h4 a5 26.Rd4 Rb7 27.a3 Reb8 28.Kd2 (28.e5 Qe7 29.Rdg4–+) 28...Rb2 0–1. pawnraider (2060) – marekt (2195), gameknot.com, 2015.

6.b5 Bd6 7.g4 Bg6 8.g5 Ne4 (8...Nh5 9.c4+=) 9.h4 (9.Bg7 Rg8 10.Bh6 Bh5=) 9...Rg8 10.d3 Nc5 (10...Bh5 11.Be2 Nc5 12.Nc3=) 11.Nc3 (11.h5 Bf5=) 11...a6 (11...Bh5 12.Be2=) 12.a4 (12.h5 Bf5=) 12...Nbd7 (12...Bh5 13.Be2+=) 13.h5 Bf5 14.Rg1 ab5 15.ab5 Nb6 16.Nh4 (16.Ra8 Qa8 17.Qa1 Qa1 18.Ba1 g6 19.hg6 hg6= (worse is 19...Rg6 20.Nh4+/–)) 16...Nba4 17.Na4 Na4 18.Qc1 g6 (18...Nb2 A) worse is 19.Nf5 Bb4 (19...ef5?! 20.Qb2 f4 21.Ra8 Qa8 22.Bg2=) 20.Ke2 Na4–+ (20...ef5 21.Ra8 Qa8 22.Qb2+=); B) 19.Qb2 Ra1 20.Qa1=) 19.f4 (19.Bf6 Be7 20.Be7 Qe7 21.Nf5 gf5+=) 19...Nb2= 20.Qb2 Kd7 (20...Ra1 21.Qa1 h6 22.Nf5 gf5 23.b6=) 21.Ra8+= Qa8 22.Nf5 gf5 23.Kf2 (23.Bg2 Ke8+=) 23...Bc5 (23...Qd8 24.Bg2=) 24.c4 (24.Bg2 h6 25.Qf6 Qe8+=) 24...Qa4 (24...dc4 25.d4 Ba3 26.Qc3+=) 25.Qe5 (25.Be2 dc4 26.Qf6 Rf8 27.dc4 Qa3 28.Rd1 Kc8+/–) 25...c6 26.Be2 Qb4 27.bc6 bc6 28.d4 (28.d4 Bb6 29.Qf6+/–) 1–0. forsetinn (2175) – marekt (2040), gameknot.com, 2014.

6.b5 Be7 7.c4 0–0 8.Nc3 =+.

6.b5 Be7 7.c4 c6 8.a4 0–0 9.Be2 dc4 10.Bc4 Nbd7 11.bc6 bc6 12.Be2 Rb8 13.Qc1 (13.Qc2!?+=) 13...Nc5–/+ 14.g4? (14.Bc4 Bf3 15.gf3 Nd3 16.Bd3 Qd3–/+) 14...Bg6 (better is 14...Nb3 15.Qc2 Na1 16.Ba1 Bg6–+) 15.Nd4–/+ Qb6 16.Bc3?? White prepares a5 (16.Ra2 Bd3 17.Na3 Qa6–+ (17...Na4?! 18.Nc6 Nb2 19.Ne7 Kh8 20.Qc3–/+)) 16...Bb1 17.a5 Qb7 18.a6 Qb6 19.Ba5 Qb2 20.Qb2 Rb2 21.Nc6 Be4?? (better is 21...Nd5 22.0–0 Be4–+) 22.Ne7+/– Kh8 23.f3 Ba8 (23...Nb3!? 24.Bc3 Rc2+–) 24.Bc3+– Rbb8 25.Bd4 (better is 25.Be5 Rb3 26.Bf6 gf6 27.d4 Nd3 28.Bd3 Rd3 29.Ke2+–) 25...Nb3+= 26.Rd1?? (26.Ba7 Na1 27.Bb8 Rb8+=) 26...Rbe8?? (better is 26...Nd4!? 27.ed4 Rfe8 28.d5 Re7 29.de6 fe6 30.d4–+) 27.g5?? (27.Bf6 gf6 28.Rb1 Nc5+=) 27...Nd7?? (better is 27...Nd4 28.gf6 Ne2 29.fg7 Kg7 30.Nf5 ef5 31.Ke2 Kf6–+) 28.Bc3 Re7 0–1. Gross,Willy – Merten,Rainer, corr, xxi/08, 1991.

6.b5 Be7 7.c4 c6 8.g4 Bg6 =.

6.b5 Be7 7.Be2 =.

6.c4 Bb4 7.Qa4 Nc6 8.Ne5 Rb8 9.Nc6 bc6 10.Qc6 Qd7 11.Qd7 Kd7 12.Bc3 (12.cd5 ed5 13.Bd4 c5+=) 12...Bg6–/+ 13.Bb4 Rb4 14.Nc3 Rhb8 15.Be2 c5 16.cd5 ed5 17.f3 h6 18.Kf2 Kd6 19.Rhc1 Rb2 20.Ke1 c4 21.Nd1 R2b4 22.a3 Ra4 23.Rc3 (23.Kf2 Bf5+=) 23...Nd7 (23...Rb3 24.d3 Kc5 25.Kd2 Rc3 26.Nc3=) 24.d3+= cd3 25.Bd3 Bd3 26.Rd3 Ra5 (26...Nc5 27.Rc3+=) 27.Rd4 (27.e4 Ne5 28.Rd5 Rd5 29.ed5 Nd3 30.Kd2 Nf4=) 27...Rb3 Attacks the isolani on a3 28.a4 Rc5 29.e4 Nf6 30.Rd2 Ke6 31.ed5 Nd5 32.a5 (32.Kf2 Nb4+=) 32...Rbb5–/+ 33.a6 Ra5 34.Rda2 Ra2 35.Ra2 Rc1 36.Ra3 Nf4 37.Ra2 Rb1 38.h4 Nd5 39.Ra3 Rb6 40.Ne3 Nc7 41.Rc3 Ne8 (41...Na6 42.Rc4+=) 42.Ra3 Rb2 43.g4 Nd6 44.h5 Rh2 45.Kf1 g5 (45...Ke5 46.Ra4=) 46.hg6= fg6 47.Ng2 ½–½. bishop_ben (2120) – marekt (2005), gameknot.com, 2014.

6.c4 Bb4? 7.Qa4 Nc6 8.Ne5 Qd6 9.a3 Bc5 10.d4! +–.

6.Be2 Bb4 7.0–0 0–0 8.a3 Bd6 9.c4 dc4 10.Bc4 Nbd7 (10...a6 11.d4–/+) 11.g4 (11.d4!?–/+) 11...Bg6 12.d3. casouza (2220) – samragim (2045), net–chess.com, 2006.

6.Be2 Bb4 7.a3 Bd6 (7...Be7 8.0–0–/+) 8.Ne5 (better is 8.g4!? Bg6 9.g5+=) 8...Be2–/+ 9.Qe2 0–0 (9...Nbd7 10.Nd7 Qd7 11.0–0–/+) 10.0–0 Nc6 11.d4 Be5 12.de5 Nd7 13.f4 Nc5 0–1. Dylan93 – wiking, internet, 2010.

6.g4 Bg6 7.a3?! a5 8.g5 Ne4 9.h4 ab4 10.ab4 Ra1 11.Ba1 Bb4 12.Bg7 Rg8 13.c3?? Bd6 14.Be5 Nd7 15.Bd6 Nd6 16.d4 Qa8 17.Nbd2 Qa3 18.c4 Qb2 19.Qa4 Bc2 20.Qa8 Ke7 21.Qg8 Qc1 22.Ke2 Qd1# 0–1. marus – finndottno, internet, 2001.

6.a3 c5

7.Bb5 Nc6 =.

7.c4 cb4!? 8.Qa4 Nc6 =+.

7.c4 Nbd7 8.cd5 Nd5 9.bc5 Nc5 10.Bb5 Nd7 11.Nc3 N5f6 (11...Nc7 12.Be2=) 12.0–0 (12.Rc1 Bd6+=) 12...a6 13.Be2 Be7 (13...Bd6 14.Rc1=) 14.Nd4 (14.Rc1 0–0+=) 14...Bg6 (14...Be2 15.Qe2 e5 16.Nf5=) 15.f4 0–0 16.f5 ef5 17.Nf5 Nc5 18.Na4 (18.d3 Bf5 19.Rf5 b5=) 18...Bf5= 19.Nc5 Qc8 (19...Qd5 20.d4 Rac8=+) 20.Na4 (20.Rc1 Bc5 21.d4=+) 20...Bc2=+ 21.Nb6 Qc5 (21...Bd1 22.Nc8 Rac8 23.Rad1 Rc2 24.Bf6 Bf6=) 22.Qc1= Qb6 23.Qc2 Rac8 24.Bc3 (24.Qb1 Qd6 25.Bd3 h6=) 24...Nd5 25.Rab1 (25.Qb2 Qb2 26.Bb2 Rc2–/+) 25...Qh6 (25...Qe6 26.Bg4 Nc3 27.dc3 Qe3 28.Qf2 Qc3 29.Qf4–+) 26.Qe4 (26.Rb3!?=) 26...Nc3–/+ 27.dc3 Rfe8 (27...Bg5–/+) 28.Bc4 (28.Rb7!? Bg5 29.Qd5 Be3 30.Kh1+=) 28...Bf6=+ 29.Bf7? (29.Qf4 Qf4 30.Rf4–/+) 29...Kf7–+ 30.Qd5 Kf8 31.Rb7 Qe3 32.Kh1 Qe6 33.Qh5 (33.Qa5 Kg8 34.Rb6 Rc6 (34...Bc3?! 35.Re6 Ba5 36.Ra6–+) 35.Rc6 Qc6–+) 33…h6 (34.c4 Rc4–+; 33...Rc3 34.Qh7 Qg8 35.Rf6 gf6 36.Qh6 Qg7 37.Qg7#) 0–1. Gross,Wilhelm – Merten,Rainer, 1991.

7.bc5 Bc5 8.Bb5 Nc6 9.g4 Bg6 10.Ne5 0–0 11.Bc6 bc6 12.Nc3 d4 13.Na4 Qd5 14.Nf3 Rfb8 15.0–0 Bd6 16.Nd4 Qc4 17.c3 Bd3 18.Re1 e5 19.Ne2 Be2 20.Re2 Rb3 0–1. ranzpendang – pierre (2120), internet, 2007.

7.bc5 Bc5 8.Be2 0–0 9.0–0 Nbd7 10.d3 Qb6 11.Qc1 (11.Ra2 Qc7=+) 11...Rfe8 (11...Rac8 12.Nbd2=+) 12.Nc3 (12.Nbd2 e5=) 12...Bd6 (12...Qd8 13.Qd2=+) 13.Rb1 Rac8 (13...Qa5 14.g4 Bg6 15.g5=+) 14.Ba1 (14.g4 Bg6=+) 14...Qa5 15.Nb5 (15.g4 Bg6 16.Nb5 Bb8=+) 15...Bb8 16.c4 (16.g4 Bg6=) 16...a6 (16...Bf3 17.Bf3 a6 18.Bc3–/+) 17.Nc3 (17.Bc3 Qd8 18.Nbd4 e5–/+) 17...Bf3 (17...dc4 18.dc4 Bf3 19.Bf3 Rc4 20.Bb7–/+) 18.Bf3 Ne5 19.Be2 dc4 20.dc4 (20.d4 Nd3 21.Bd3 cd3 22.Rb7 e5=+) 20...Qc7 21.Qb2?? (better is 21.g3–/+) 21...Nf3!! 22.Bf3 (22.gf3 Qh2#) 0–1. touchdown – pierred, ChessWorld.net, 2006.

7.g4= Bg6 8.Ne5 (8.bc5 Bc5 9.g5 Nh5=) 8...Nbd7 (8...Qb6 9.Ng6 hg6 10.Bf6 gf6 11.bc5 Bc5 12.Nc3=) 9.bc5 Ne5 (9...Bc5 10.g5 Qb6 11.Ra2+= (11.gf6 Qb2 12.Ng6 hg6=; 11.Ng6?! hg6 12.Ra2 Ne4=)) 10.Be5 Bc5 (10...Nd7 11.Bb5=) 11.g5 Nd7 (11...Nh5 12.Bb5 Kf8 13.h4=) 12.Bg7+= Rg8 13.Bh6 Rc8 14.h4 (14.Ra2 Qc7+=) 14...Qb6 (14...Bf8 15.Nc3 Bh6 16.gh6=) 15.Nc3+= d4 16.ed4 (16.h5!? Bf5 17.Ne2=) 16...Bd4=+ 17.Bb5 Bf2 18.Kf1 Bc5 (18...Bd4 19.h5 Bf5 20.Rb1=+) 19.Qf3 (19.Ke1 Qc7 20.Qf3 Bc2=+) 19...Bc2–/+ 20.Kg2 (20.Ke1 Bf5–/+) 20...a6 21.Bd7=+ Kd7 22.Rhc1 Qb2 23.Qf7 Be7 24.Bg7 Bb3 25.Bf6 Qd2–/+ 26.Kg1 Qe3 27.Kg2 Rge8 28.Rd1 Bd5 29.Rd5 ed5 30.Rd1 Rc3 31.Qd5 Kc8 32.Bc3 Qe2 33.Kh1 Ba3 34.Re1 Qh5 35.Re8 Qe8 36.Be5 Be7 37.Qe6=+ ½–½. aschellen (1870) – Shvonder (1730), internet, 2006.

6.a3 Nbd7

7.c4 a5 8.c5 =.

7.c4 dc4 8.Bc4= Bd6 9.Be2 (9.0–0 Nb6 10.Be2 c6=) 9...a5 (9...0–0 10.0–0=) 10.b5= a4 (10...e5 11.d3=) 11.d3 (11.Nc3 Nb6=) 11...0–0 12.Nbd2 (12.Nc3 Nb6=) 12...Nb6 (12...Ra5 13.Nd4 Be2 14.Qe2=) 13.Bd4 (13.0–0 Ra5 14.Nd4 Bg6=) 13...Nfd7 14.Ne4 e5 15.Bb6 Nb6 16.0–0 (16.Nd6 Qd6 17.d4 Bf3 18.Bf3 Ra5=) 16...Qe7 (16...Ra5 17.d4 Bf3 18.Bf3 Rb5 19.Nd6 Qd6 20.Bb7=) 17.Qc1= f5 18.Nd6 cd6 19.Qb2 Rae8 (19...Rac8 20.Rac1=) 20.Qb4 d5 21.Qe7 Re7 22.Rac1 e4 23.de4 fe4 24.Nd4 Be2 25.Ne2 Rff7 26.Rfd1 Rc7 27.Nf4 Rc1=+ 28.Rc1 g5 29.Ne6= Re7 30.Nc5 Kf7 31.Rc3 Kf6 32.f3 Ke5 33.fe4=+ de4 34.Kf2 h5 35.Kg3 Kf5 36.Kf2 Rf7 37.Kg3 Nd5=+ 38.Rc4 Ne3 39.Re4 Rc7–/+ 40.Kf3 Ng2! 41.Kg2 Rc5 42.Ra4 Rb5 43.Ra8 Rb2 44.Kf3 Rb3 45.Kg2–/+ h4 46.Ra5 Kf4 ½–½. slogger – michaelbuss, ChessWorld.net, 2007.

7.d3 c5 8.bc5 Nc5 9.Nbd2 Bd6 10.Be2 0–0 11.0–0 Rc8 12.c4 Bg6 13.cd5 (13.Qb1 Na4 14.Nh4 Nb2 15.Qb2 b6=) 13...Nd3+= (worse is 13...Bd3 14.Bd3 Nd3 15.Bf6 gf6 16.de6 fe6 17.Nd4+/–) 14.Bd3 (14.Bf6!? Qf6 15.de6 fe6 16.Nc4+=) 14...Bd3–/+ 15.Re1 Nd5 16.Qb3 Ba6 17.Rab1 Qb6 18.Qa4 Bd3 19.Qg4 (19.Bd4 Qc7 20.Bg7 Rfd8–/+ (20...Kg7?! 21.Qd4 Be5 22.Qd3+=)) 19...g6 20.Bd4 Qa6 21.Rb3 Bc2 22.Rb2 Ba3 23.Ra2 Nb4 24.Ra3 (24.Raa1 Nd3 25.Rf1 Rfe8–/+) 24...Qa3 25.Qf4 Nc6 26.Qh6 f6 27.Ng5 Qe7 (27...Qe7 28.Bc5 Qd7–+ (28...fg5 29.Be7 Ne7 30.Qg5+=)) 0–1. Kevin – Janek, internet free game, 2016.

7.Be2 c5 8.bc5 Bc5 9.0–0 0–0 10.Nc3 Nb6 (10...a6 11.d3=) 11.d3 Nbd7 12.Qd2 (12.Nb5 Qb6 13.Rb1 Qb5 14.Bf6 Qc6=) 12...Bf3 13.Bf3 Ne5 14.Qe2 (14.Qd1 Qd7=) 14...Qd7 15.a4 (15.Bh5 Rac8+=) 15...Nf3+= 16.Qf3 e5 17.Rfd1 (17.d4 ed4 18.ed4 Bb4+= (18...Bd4?! 19.Rfd1 Bc3 20.Bc3+=)) 17...Rac8 18.e4 (18.Rab1 Rfe8+=) 18...Bd4–/+ 19.Ra3 Bc3 20.Bc3 Rfe8 21.Qe2 Qc6 22.ed5 (22.Re1 d4 23.Bb2 Qc2+=) 22...Nd5–+ 23.Bd2 Qc2 24.Rc1 (24.Qf3 Rc7–+) 24...Qb2 25.Raa1 Nf4 26.Qe3 Rcd8 (26...Rc1 27.Rc1 Rd8 28.g3 Nd3 29.Rc7–+) 27.Rab1 (27.Rcb1 Qc2 28.Rc1 Qb3–/+) 27...Qa2 28.Ra1 (28.d4 g5 29.Rb5 h6–+) 28...Qd5 29.f3 Qe6 (29...Qd3?! 30.Qd3 Rd3 31.Bf4 ef4 32.Rc7–+) 30.Rd1?? (30.Kh2–+) 30...Qg6 (30...Qg6 31.g4 Rd3–+) 0–1. chessNstocks – marekt, ChessWorld.net, 2015.

7.Be2 Bd6 =.

7.c4 c6

8.d4 dc4 9.Bc4 a5 10.b5 c5 11.Nbd2 cd4 12.Bd4 Bc5 13.Bb2 0–0 14.0–0 Qe7 15.Qb1 Rfd8 16.Bd3 Rac8 17.Rc1 Bb6 18.Rc8 Rc8 19.Qf1 Nd5 20.Rc1 Rd8 21.g4 Bg6 22.Bg6 hg6 23.Qc4 Bc5 24.Qb3 b6 25.Nc4 Rc8 26.g5 Bd6 27.Qd1 Bb8 28.Qd4 Qf8 29.a4 Rd8 30.Ba3 Qe8 31.Kg2 Nb4 32.Bb4 (32.Nb6 e5 33.Qe4 Nb6 34.Bb4 ab4 35.Qb4 e4–+) 32...e5 33.Qd5 ab4 34.Rd1 Bc7 35.Qc6 Nf8 36.Qe8 (worse is 36.Qc7 Rd1 37.Qb6 Qe7 38.Nce5 b3–/+) 36...Re8 37.Rd5 f6 38.a5 ba5 39.b6 Bb6 40.Nb6 Rb8 41.Rd6 b3 42.gf6 gf6 43.Nd2 b2 44.Rf6 Kg7 45.Rc6 Kf7 46.Nb1 e4 (46...g5 47.Nc4 Ng6 48.Kf3+–) 47.Nc4+– Nd7 48.Kf1 a4 49.Ke2 1–0. maltedk (2365) – marekt (2170), gameknot.com, 2015.

8.cd5= cd5 (8...ed5 9.Be2=) 9.g4 (9.Be2 Bf3 10.Bf3 Bd6=) 9...Bg6+= 10.Rg1 (10.d3 Bd6+=) 10...Rc8 11.d3 h6 (11...Bd6 12.g5 Nh5 13.Be2=) 12.Qa4= Be7 (12...a6 13.Ne5 Bh7 14.f4=) 13.h4 (13.Ne5 Bh7+=) 13...0–0 (13...a6 14.Ne5=) 14.h5 (14.g5 hg5 15.hg5 Nh7+=) 14...Bh7 (14...Nb6 15.Qa7 Qc7 16.hg6+=) 15.g5 (15.Qa7 Rc2 16.Bc3 Qc7–+) 15...hg5 16.Ng5 (16.Qa7 Rc2 17.Qd4 Ne8–+) 16...Bf5 (16...a6!?+=) 17.h6+– (worse is 17.Qa7 Rc2 18.e4 Rb2 19.ef5 Qc7+=) 17...Ng4 18.hg7 Re8 19.Nf3 Bf6 20.Qb3 (20.Nd4 Nde5 21.Be2 Bh4 22.Nf5 Bf2 23.Kd2 ef5–+ (23...Bg1?! 24.Nc3 ef5 25.Rg1–+)) 20…Bh4 (20...Bh4 21.Nh4 Qh4+/–). Bjazevic,Pavao (2245) – Vegjeleki,Adolf (2145), corr WSTT/3/06/Semifinal, 2008.

8.Be2 h6

9.Qb3 A) 9...a5 10.d3 (10.0–0 dc4 11.Qc4 ab4 12.ab4 Ra1 13.Ba1 Qb6 14.Bc3 Bd6=) 10...Qb6 11.Bd4 Qc7 12.0–0 e5 13.Bc3 ab4 14.ab4 Ra1=; B) 9...Bf3 10.Bf3 dc4 11.Qc4 Bd6 12.0–0 a5 13.b5 Qb6 14.a4 Rc8=; C) 9...Qb6 10.0–0 (10.cd5 ed5 11.Qa4 a5 12.0–0 Bd6 13.Bd4 Qd8 14.b5 c5=) 10...Bd6 11.d3 dc4 12.dc4 Rd8 13.Rd1 c5 14.Nc3 0–0+=; D) 9...dc4 10.Qc4 Bd6 11.0–0 0–0 12.d3 a5 13.Nbd2 e5 14.Qh4 ab4=.

9.Qc1 A) 9...dc4 10.Qc4 Nb6 11.Qh4 Be7 12.0–0 0–0 13.Qg3 Bd6 14.Qh4 e5=; B) 9...a5 10.cd5 (10.c5 ab4 11.ab4 Ra1 12.Ba1 Bf3 13.Bf3 b6 14.d4 Be7=) 10...Nd5 11.ba5 Nc5 12.Qc2 Qa5 13.Nc3 Nc3 14.Bc3 Qa4=; C) 9...c5 10.cd5 (10.b5 Bd6 11.cd5 ed5 12.0–0 0–0 13.Nc3 c4 14.Ra2 Bg6+=) 10...ed5 11.bc5 Bc5 12.Nc3 Rc8 13.0–0 0–0 14.Qd1 Re8=; D) 9...Bf3 10.Bf3 a5 11.cd5 ed5 12.ba5 Qa5 13.0–0 Bd6 14.Bc3 Qa4+=.

9.Qc2 A) 9...Bf3 10.Bf3 a5 11.cd5 ed5 12.b5 Rc8 13.Nc3 cb5 14.Qb3 Ne5=; B) 9...a5 10.cd5 (10.c5 ab4 11.ab4 Ra1 12.Ba1 b6 13.b5 Bg6 14.d3 Qa8=) 10...Nd5 11.ba5 Qa5 12.Nc3 N5f6 13.d4 Bd6 14.0–0 Bg6=; C) 9...dc4 10.Qc4 Bd6 11.0–0 a5 12.b5 Rc8 13.Rc1 0–0 14.d4 Nb6=; D) 9...Bg6 10.d3 a5 11.ba5 dc4 12.Qc4 Ra5 13.0–0 Bd6 14.Qc2 0–0=.

9.c5 A) 9...Be7 10.0–0 (10.Nc3 e5 11.0–0 Qc7 12.d4 e4 13.Nd2 Be2 14.Qe2 0–0=) 10...b6 11.d4 Bf3 12.Bf3 a5 13.Nc3 ab4 14.ab4 Ra1=; B) 9...Qc7 10.d3 (10.0–0 e5 11.d4 e4 12.Ne5 Be2 13.Qe2 Ne5 14.de5 Nd7=) 10...e5 11.0–0 0–0–0 12.Qa4 e4 13.Nd4 Be2 14.Ne2 ed3=; C) 9...b6 10.d4 a5 11.0–0 Bf3 12.Bf3 ab4 13.ab4 Ra1 14.Ba1 Be7=; D) 9...Qe7 10.0–0 (10.Nc3 e5 11.0–0 0–0–0 12.d3 Kb8 13.Rb1 Qe6 14.b5 Bf3=) 10...e5 11.d3 0–0–0 12.Nc3 Kb8 13.Rb1 Qe6 14.b5 Bf3=.

9.d3 A) 9...Bf3 10.Bf3 a5 11.Qd2 Bd6 12.c5 Be5 13.d4 Bc7 14.0–0 0–0=; B) 9...Bd6 10.Nbd2 (10.0–0 0–0 11.Nbd2 e5 12.cd5 cd5 13.Nh4 Be2 14.Qe2 Nb6=) 10...0–0 11.0–0 e5 12.c5 Bc7 13.Re1 Qe7 14.e4 Bg6=; C) 9...dc4 10.dc4 c5 11.Qa4 Bd6 12.Nc3 0–0 13.Rd1 Qb6 14.Nb5 Be7=; D) 9...a5 10.c5 (10.b5 cb5 11.cb5 Bd6 12.0–0 0–0 13.Nc3 Rc8 14.Rc1 e5=) 10...ab4 11.ab4 Ra1 12.Ba1 b6 13.Qa4 bc5 14.bc5 Bc5=.

9.d4 A) 9...Bf3 10.gf3 (10.Bf3 dc4 11.Qc2 a5 12.Qc4 Qb6 13.b5 cb5 14.Qc2 Bd6+=) 10...Bd6 11.Rg1 g6 12.Nd2 Rg8 13.f4 g5 14.fg5 hg5=; B) 9...Be7 10.cd5 (10.Nbd2 a5 11.ba5 Bf3 12.Bf3 Qa5 13.c5 b6 14.cb6 Nb6=) 10...cd5 11.0–0 a5 12.b5 Rc8 13.Nbd2 0–0 14.Rc1 Rc1=; C) 9...Nb6 10.c5 (10.cd5 ed5 11.0–0 Bd6 12.Nbd2 0–0 13.Rc1 Qe7 14.Qb3 Ne4=) 10...Bf3 11.gf3 Nbd7 12.Nc3 Qc7 13.e4 Be7 14.Rb1 Rd8=; D) 9...dc4 10.Bc4 Bd6 11.Nc3 0–0 12.0–0 e5 13.g4 Bg6 14.de5 Be5=.

9.cd5 ed5 (9...cd5 10.0–0 (10.Nc3 a5 11.b5 Bd6 12.0–0 0–0 13.d3 Rc8 14.Rc1 Qe7=) 10...Bd6 11.Nc3 Bf3 12.Bf3 0–0 13.e4 d4 14.Nb5 Qb6=; 9...Bf3 10.Bf3 ed5 11.0–0 Bd6 12.Nc3 0–0 13.Re1 Re8 14.d3 Ne5=; 9...Nd5 10.Nc3 (10.0–0 a5 11.b5 cb5 12.Bb5 Nc7 13.Be2 b5 14.d4 Be7=) 10...Nc3 11.Bc3 Nf6 12.b5 Bd6 13.bc6 bc6 14.Qa4 0–0+=) 10.0–0 (10.Nc3 Bd6 11.0–0 0–0 12.Qc2 Re8 13.Rfc1 Qe7 14.b5 Bf3=) 10...Bd6 11.Nd4 (11.Nc3 0–0 12.Qc2 Re8 13.Rfc1 Qe7 14.b5 Bf3=) 11...Bg6 (11...Be2 12.Qe2 0–0 13.Nf5 Be5 14.Be5 Ne5=) 12.Nb3 (12.f4 a5 13.f5 Bh7 14.b5 c5=) 12...0–0 13.d3 (13.Nc3 Re8 14.f4 Qe7=) 13...Qe7 (13...Re8 14.Bd4 b6+=) 14.N1d2 Rac8 (14...Rfc8=) 15.Nf3 c5 16.Nc5 Nc5 17.bc5 Rc5 18.Bd4 Rc6 19.Ba7 Rfc8 20.Rb1 Ba3 21.Bd4 Rc2 22.Ne5 Bf5 23.f4 R2c7 24.Rb5 Bc5 25.Bc5 Rc5 26.Qb3 R8c7 27.Ra1 Rc3 28.Qb4 Qb4 29.Rb4 Nd7 30.Ra8 Kh7 31.Nf7 Bd3 32.Bd3 Rd3 33.f5 g6 34.Nd6 Nf6 35.Rb6 Nd7 36.Rb2 Nf6 37.Rb6 Nd7 ½–½. rcm06 (2150) – marekt (2040), gameknot.com, 2014.

6.b5 Nbd7

7.c4 Bd6 8.d4 0–0 9.c5 Be7 10.Bd3 Bf3 11.Qf3 e5 12.Bc2 e4 13.Qf5 c6 14.bc6 bc6 15.Nc3 Rb8 16.Bb3 Qc7 17.0–0 Rfc8 18.f3 Qg3 19.Ne2 Qh4 20.Rac1 ef3 21.Rf3 Nf8 22.Rcf1 Ne6 23.Bc3 g6 24.Qc2 Kg7 25.Be1 Qh5 26.Bg3 Ng5 27.R3f2 Rb7 28.Nc3 Ne8 29.Be5 f6 30.Bf4 f5 31.Qd3 Nc7 32.Ba4 Nce6 33.Qa6 Nd8 34.Rb1 Rb1 35.Nb1 Ra8 36.Bc6 Nc6 37.Qc6 Rd8 38.Nc3 Ne4 39.Ne4 de4 40.Qc7 Kf7 41.Qa7 Qd1 42.Rf1 Qe2 43.Rb1 Kf8 44.Bh6 1–0. Waibel – Timmons, 1995.

7.Be2 Be7 8.c4 c6 (8...dc4 9.Bc4 Nb6 10.Be2=+) 9.a4 (9.cd5 cd5 10.0–0 0–0=) 9...0–0 10.Nc3 (10.cd5 Bf3 11.Bf3 cd5=) 10...Nb6 (10...dc4 11.bc6 bc6 12.Bc4=+) 11.Qb3 (11.d3!?=) 11...dc4 12.Bc4 Nc4 13.Qc4 Rc8 14.Nd4 (14.Rc1 Bf3 15.gf3 e5–/+) 14...c5 (14...Bg6 15.0–0–/+) 15.Nde2 Nd7 (15...Nd5!?–/+) 16.Nf4= Bg6 17.Ng6 hg6 18.Ne4 Nb6 19.Qc3 f6 20.h4 (20.a5 Nd5 21.Qc4 f5+=) 20...c4 21.h5 (21.Qa5!?=) 21...Qd5=+ 22.Qc2 gh5 23.Nc3 (better is 23.Ng3=+) 23...Qg2–+ 24.0–0–0 f5 (24...Qf3!? 25.a5 Nd7 26.e4–+) 25.Rh5–/+ Bf6 (25...g6 26.Rh6 Bg5 27.Rg6 Kf7 28.Rg5 Qg5 29.a5–/+) 26.Rdh1 (26.f4 a6=+) 26...Nd5 (26...Qf2 27.a5 Nd5 28.Nd5 Bb2 29.Qb2 Kf7+–) 27.Nd5 Bb2 28.Qb2 Qd5 29.Rg1 (better is 29.Rh7 Qd7 30.Qe5=+) 29...c3! 30.dc3 (30.Qc3 Rc3) 30...Qd3 31.c4 (31.Qb4 Rc3 32.Kb2 Qd2 33.Ka1 Rc1 34.Qb1 Rb1 35.Rb1–+) 31…Rc4 (32.Qc3 Qc3 33.Kd1 Qd3 34.Ke1 Rc1#) 0–1. Gross,Wilhelm – Merten,Rainer, xxi/02, 1991.

6.c4 Bf3!

7.Qf3 Bb4

8.a3!?

8.cd5 ed5 9.Bf6 Qf6 10.Qf6 gf6 11.a3 =.

8.Bf6 Qf6 9.Qf6 gf6 10.cd5 ed5 =.

8.cd5 Qd5

9.Qd5 ed5 10.Bf6 gf6 =.

9.Qf4 Bd6 10.Qa4 Nbd7 11.Nc3 (11.Bf6 gf6 12.Nc3 Qf5=) 11...Qg5 12.h4 (12.Qb5 Qb5 13.Nb5 Ke7=+) 12...Qg6–/+ 13.Nb5 0–0 14.Nd6 cd6 15.Rh3 (15.h5 Qh6–/+) 15...Rfc8–/+ 16.Bc3 (16.h5 Qh6–/+) 16...Nc5 17.Qd4 b6 (better is 17...Nce4–+) 18.Rg3= Qe4?? (better is 18...e5 19.Qd6 Qh6 20.Qe5 Nce4=) 19.Qf6+– (19...Kf8 20.Rg7+–) 1–0. Gross,Wilhelm – Merten,Rainer, 1990.

9.Qf4 Ne4 10.Bg7 Bd2 11.Ke2 Rg8 12.Qe5 Ba5 13.Qd5 ed5 14.Bb2 c5 15.g3 c4 16.Na3 Nc6 17.Bg2 c3 18.Bc1 Rg6 19.Nc2 Rf6 20.Rf1 b5 21.Be4 de4 22.Rb1 a6 23.Rd1 Rd8 24.Rd8 Kd8 25.Ba3 Rh6 26.h4 Ke8 27.Bc5 Ne5 28.a4 (better is 28.Bd4 Nd3 29.a3–+) 28...Nd3 (28...ba4?! 29.Ra1 Rc6 30.Bd4–+) 29.Ba3 (29.Bd4 b4 (29...ba4?! 30.Rb8 Kd7 31.Rf8–+) 30.Kf1 Ke7–+) 29...Rf6 (29...b4 30.Bb4 Nb4 31.Rb4 Bb4 32.Nb4–+) 30.f4 Rb6 31.ab5 ab5 32.Ne1 Ne1 33.Ke1 Bb4 34.Bc1 0–1. Fournier,Frederic (2245) – oberena(C) (2475), Active (4/4), 2002.

9.Qg3 Ne4=+ 10.Qe5 (better is 10.Qg7!? Bd2 11.Ke2–/+) 10...Bd2–/+ 11.Ke2 Qe5 (11...Ba5 12.Qd5 ed5 13.Bg7–+) 12.Be5 Bb4 (12...Ba5 13.Bg7 Rg8 14.Bb2–/+) 13.Bg7 Rg8 14.Bb2 Nc6 15.a3 Bc5 (15...Bd6 16.g4–/+) 16.g4=+ Bd6 (16...Kd7 17.Bg2 Nd6 18.Nd2=) 17.Bg2 Nc5 18.Nd2 (18.Nc3 Ne7=+) 18...Rb8 (18...0–0–0 19.Bc6 bc6 20.Bd4=) 19.Nc4 (19.Ne4 Nd7=) 19…Nb3 (20.Rab1 Ke7=; 19...Ke7 20.Rhd1=+). Psion – Psion, 4 Min/Zug, 1991.

9.Qg3 Ne4=+ 10.Qg7 Bd2 11.Ke2 Rf8 12.f3 (12.a4!?–/+) 12...Qc4 13.Kd1 Qa4 14.Ke2 Qc2 15.Na3 Ng3!! 16.Qg3 Qb2 17.Nc4 Qa1 18.Nd2 Na6 (18...Qa2?! 19.Qc7 b6 20.Ke1–+) 19.Kf2 (19.Qg5 Qa2 20.Ke1 Rd8–+) 19...Qa2 (19...0–0–0 20.Ne4–+) 20.Ba6 Qd2 (< 20...Qa6 21.Qc7 Rd8 22.Rd1–+) 21.Be2 0–0–0 (22.Qg7 Qc2–+; 21...Qc2 22.Rd1–+) 0–1. Gross,Wilhelm – Merten,Rainer, 1990.

4.g3 c6

5.a3 e6 6.d3 Nf6 7.Bg2 Nbd7 8.Nd2 a5 9.c3 Be7 10.Qb3 ab4 11.cb4 Qb6 12.Ngf3 0–0 13.Rc1 Bd6 14.Nh4 Be5 15.Be5 Ne5 16.a4 Ned7 17.g4 Bg6 18.Ng6 hg6 19.e3 Rfc8 20.a5 Qd8 21.d4 b6 22.ab6 Rab8 23.Qc3 Rb6 24.f4 Qf8 Attacks the isolani on b4 25.Rb1 Rcb8 26.0–0 R8b7 27.Rfc1 Nb8 28.Bf3 Na6 The pressure on the isolated pawn grows 29.g5 Ne8 30.Rb3 Nd6 31.Be2 Nb4 32.Ra1 Nf5 33.Qc5 Rb8 34.Rab1 R6b7 35.Kg2 Qd6 36.Kg1 Kh7 37.Kh2 Ra8 38.R1b2 Ra4 39.Nf3 Qc7 40.Rb4 Rbb4 41.Rb4 Ra2 42.Ng1 Ne3 43.Kg3 Nf5 44.Kg4 Ra3 45.Bf3 Ne3 46.Kg3 Nf1 47.Kf2 Qf4 48.Kf1 Qd2 49.Rb1 Qd3 50.Kf2 Ra2 51.Be2 Qb1 52.Qc3 Qd1 53.h4 c5! 54.dc5 (54.Qc5 Qd3 Combination; 54.dc5 Rc2 Decoy) 54...d4 55.Qf3 d3 56.h5 gh5 (56...Re2?! 57.Ne2 de2 58.Qe2 Qd4 59.Qe3 Qb2 60.Qe2–/+) 57.Qh5 Kg8 58.g6 de2 (58...Re2?! 59.Ne2 de2 60.Qe2–/+) 59.Ne2 (59.gf7 Kf8 60.Ne2 Qd4 61.Kf1–+) 59...Qd4 (59...Qd4 60.Kg2 fg6–+) 0–1. Boehnke,Hartmut (2015) – Klapp,Herwig (2250), GER–ch36 V5 email, 2004.

5.Bg2 Nd7 6.Nf3 Bf3 7.Bf3 e5 8.c4 dc4 (8...Ngf6 9.Qb3=) 9.Na3+= Bb4 10.Nc4 Qe7 11.Qb3 Rb8 12.0–0 Bc5 13.Bg2 (13.e3 Ngf6+=) 13...Ngf6= Black prepares e4 14.e3 e4 15.d4 ed3 16.Rad1 0–0 17.Rd3 Rfd8 18.Rfd1 Nb6 19.Rd8 Rd8 20.Rd8 Qd8 21.Na5 Qc7 (21...Qc8 22.Bf6 gf6 23.Qd1=) 22.Bf6+= gf6 23.Qd1 Bf8 24.Qg4 Bg7 25.Qf4 Qc8 26.h4 Nd5 27.Qd4 Nb6 28.Qd6 Na8 (28...f5 29.Qe7 Nd7 30.Bh3+=) 29.Be4 h6 30.Qc5 Nb6 31.Qe7 Qd7 32.Qd7 Nd7 33.Nb7 Ne5 34.Nc5 Bf8 35.Nb3 c5 36.Kf1 h5 37.Ke2 c4 (37...Kg7 38.Nd2+/–) 38.Nd4 a5 (38...Bc5 39.Bd5 c3 40.Be4+/–) 39.Bd5+– Bc5 (39...c3 40.f4 Nd7 41.Kd3+–) 40.f4 Ng6 41.Bc4 Ne7 42.Bd3 f5 43.Nf5 Nf5 44.Bf5 1–0. marekt – Guest_groove_rider, internet, 2015.

5.Bg2= f6 6.a3 =.

5.g4 Bg6 6.Nf3 Nd7 7.a3 f6 8.Bg2 e5–/+ 9.Nh4 Bf7 10.d3 a5=+ 11.c3 g6–/+ 12.Nd2 Be6 13.Qb3=+ Ne7 14.Rd1 Bg7 15.c4 b5 16.Bc3 d4 17.Bb2 Rb8 18.0–0 c5 19.e3 de3 20.fe3–/+ cb4 21.ab4 Bh6 22.Rfe1 Qb6 23.ba5 Qa5 24.Qc2=+ 0–0 25.cb5 Nd5 26.Nc4 Qb5 27.Ba3 Rfc8 28.Qf2 Nc3–/+ 29.Rd2 Qa6 30.Be7 Bc4 31.dc4 Nc5 32.Bc5 Rc5 33.Rc2 (33.Bd5 Nd5 34.cd5 Qd6–/+) ½–½. Fahrudin87 (2035) – pierre (2065), internet, 2006.

5.Bg2 Qb6

6.c3 a5 A) 7.a3 Nf6 (7...e5 8.Nf3 Bd6 9.0–0 Bf3 10.Bf3 Nf6 11.d3 0–0 12.Nd2+=) 8.Nf3 Nbd7 9.g4 Bg6 10.d3 e5 11.Nbd2 Bd6 12.Nh4+=; B) 7.Qa4 Nd7 (7...Nf6 8.Nf3 e6 9.a3 Bd6 10.c4 dc4 11.Bf6 gf6 12.Nc3+=) 8.Na3 e5 9.b5 Ngf6 10.d4 Ba3 11.Ba3 cb5 12.Qb3–/+; C) 7.Ba3 Nf6 (7...ab4 8.Bb4 Nf6 9.d4 Na6 10.Ba3 Qc7 11.Nd2 b5 12.Ngf3=) 8.ba5 Ra5 9.Qb3 Rb5 10.Qd1 Qa6 11.Qc2 Nbd7 12.f4+=; D) 7.Qb3 ab4 (7...Nd7 8.ba5 Ra5 9.Qb6 Nb6 10.Ba3 Nf6 11.g4 Bg6 12.d3+=) 8.Qb4 Nd7 9.Nf3 Qa6 10.Qh4 Ngf6 11.g4 Qb6 12.Bc1+=.

6.c3 Nd7 7.a4 (7.f4 e6 (7...Bg6 8.Nf3 Ngf6 9.e3 e6 10.0–0 Bd3 11.Re1 Ne4 12.Kh2–/+) 8.Nf3 Bg6 9.d3 Ngf6 10.Qd2 Bd6 11.a4 a5 12.b5–/+; 7.Nf3 Ngf6 (7...e5 8.0–0 Ngf6 9.d3 Bd6 10.Nh4 0–0 11.Nf5 Bc7 12.g4+=) 8.g4 Bg6 9.d3 e5 10.Nbd2 0–0–0 11.Nh4 Bc5 12.0–0+=; 7.d3 e5 (7...a5 8.a3 e5 9.Nf3 Bd6 10.0–0 Ne7 11.Nbd2 0–0 12.Nb3+=) 8.Nf3 Bd6 9.0–0 a5 10.a3 Ne7 11.Nbd2 0–0 12.Nb3+=; 7.a3 e5 (7...Ngf6 8.d3 e5 9.Nf3 Bd6 10.c4 Bf3 11.Bf3 a5 12.b5–/+) 8.d3 Bc5 9.d4 Bd6 10.de5 Bc5 11.bc5 Qb2 12.Nd2–/+) 7...a5 (7...e5 8.a5 Qa6 9.Nf3 Ngf6 10.d3 Bd6 11.Nbd2 0–0–0 12.0–0+=) 8.Qb3 (8.Ba3 e5 9.b5 Ngf6 10.Bf8 Rf8 11.Na3 Bg6 12.Nf3+=) 8...e6 (8...e5 9.b5 Ngf6 10.c4 Rd8 11.Nf3 e4 12.Ne5–/+) 9.Ba3 (better is 9.b5!?–/+ Nc5 10.Qa2 cb5 11.ab5 Qb5 12.Na3–/+) 9...ab4–+ 10.cb4 (10.Bb4 c5 11.a5 Qb5 12.Bd5–+) 10...Ngf6 (10...Nc5 11.Qc2 Na4 12.e4–+) 11.Nc3 (11.b5 Nc5 12.Qe3–/+) 11...Bg6 (11...d4 12.Nb1–/+) 12.d3 (12.b5–/+) 12...Bc5! 13.Nd1 (13.bc5 Qb3 Pinning (13...Qb3 Deflection)) 13...Bd6 14.Rb1 0–0 15.Nf3 Qa7 16.a5 c5 17.Rb2 Rfc8 18.g4 (18.Ne3!?–/+) 18...c4–+ 19.dc4 dc4 20.Qe3 (20.Qc3 Nd5 21.Qc1 c3–+) 20...c3! (20...c3 21.Qa7 Ra7–+) 0–1. onny555 (1815) – marekt (1990), gameknot.com, 2014.

6.c3 e5 A) 7.Nf3 Bd6 (7...Nd7 8.0–0 Ngf6 9.d3 Bd6 10.Nh4 0–0 11.Nf5 Bc7 12.g4+=) 8.a4 a5 9.b5 cb5 10.Qb3 Nf6 11.Qb5 Qb5 12.ab5+=; B) 7.a3 Bd6 (7...Nf6 8.Nf3 Nbd7 9.d3 0–0–0 10.0–0 e4 11.Nh4 ed3 12.Qd3+=) 8.d4 Nd7 9.de5 Bc5 10.bc5 Qb2 11.Nd2 Qc3 12.Qc1–/+; C) 7.Qb3 Nf6 (7...Nd7 8.Nf3 Bd6 9.d3 Ne7 10.0–0 a5 11.ba5 Ra5 12.Ba3+=) 8.Nf3 Nbd7 9.d3 Bf3 10.Bf3 a5 11.ba5 Qa5 12.0–0+=; D) 7.a4 a5 (7...Nf6 8.a5 Qc7 9.Nf3 Bd6 10.0–0 0–0 11.d3 Nbd7 12.Qd2+=) 8.b5 Nf6 9.Nf3 Bf3 10.Bf3 e4 11.Bg2 cb5 12.Qb3+=.

6.c3 Nf6 A) 7.g4 Bg6 8.Nf3 a5 9.a3 Nbd7 10.d3 e5 11.Nbd2 Bd6 12.Nh4+=; B) 7.d3 a5 (7...e5 8.g4 Bg6 9.Nf3 Bd6 10.g5 Nfd7 11.e4 a5 12.a3+=) 8.g4 Bg6 9.a3 e5 10.Nf3 Bd6 11.0–0 0–0 12.Nbd2+=; C) 7.Nf3 a5 (7...Nbd7 8.d3 e5 9.0–0 Bd6 10.Nh4 0–0 11.Nf5 Bc7 12.g4+=) 8.a3 Nbd7 9.g4 Bg6 10.d3 e5 11.Nbd2 Bd6 12.Nh4+=; D) 7.a4 a5 (7...e5 8.a5 Qc7 9.Nf3 Bd6 10.0–0 0–0 11.d3 Nbd7 12.Qd2+=) 8.b5 e5 9.Nf3 Bf3 10.Bf3 e4 11.Bg2 cb5 12.Qb3+=.

6.a3 a5

7.c3 ab4 8.ab4 (8.cb4 Nd7= 9.g4 Bg6 10.Nf3 e6 11.d3 c5=+) 8...Ra1=+ 9.Ba1 Qa6 (9...e5 10.d3=+ (10.Bb2 Bd6 11.Nf3 Ne7=+) 10...Bd6 11.Nf3 Nf6=+) 10.Bb2= Qa2 (10...e5 11.Nf3 Bd6=) 11.Qc1 (11.Qc2 e5=) 11...Nd7 (11...e5 12.c4 d4 13.b5=) 12.Nf3= Ngf6 (12...e5 13.0–0=) 13.0–0 (13.g4 Bg6 14.d3 e5=) 13...Qa6 (13...e5 14.d3=) 14.d3= e6 (14...e5 15.Qe3 Bf3 16.Qf3=) 15.Nbd2 Bd6 16.Qa1 Qb6 (16...Nb8 17.Qa6 Na6 18.Ra1=) 17.Qa8 Bb8 18.Ra1 0–0 19.Qa5 Rd8 (19...Qa5 20.ba5 Bf3 21.Nf3=) 20.Nb3 Bc7 21.Qb6 Bb6 22.Na5 Rb8 23.g4 Bg6 24.Nh4 Bd8 25.Ng6 hg6 26.c4 Kf8 27.Bd4 Bb6+= 28.Bb6 Nb6 29.c5 Nc8 30.Nb7?? Rb7–/+ 31.Ra8 Rc7 32.e3 Ke7 33.d4 Kd7 34.Bf1 Ra7 35.Ra7 Na7 36.f3 Ne8 37.Kf2 Nc7 38.Ke1 Nab5 39.Kd2 Na6 40.Bb5 cb5 41.Kc3 Nb8 42.e4? Nc6 43.h4 Ke7 (44.e5 f6–+; 43...de4 44.fe4 f5 45.gf5 gf5 46.d5 ed5 47.ed5–+) 0–1. Zoellner,Rainer (1770) – Jaeger,Andre (1990), Berlin, 2006.

7.c3 e5 8.Qc2 Nd7 9.d3 f5 (9...Bd6 10.Nf3=+) 10.Nd2 (10.Nf3 Ngf6=+) 10...Ngf6 11.Ngf3 Bd6 (11...Be7 12.Nh4 g6 13.Nhf3=+) 12.Nh4 g6 13.e4 (13.Nhf3 0–0=+) 13...fe4 14.de4 0–0 15.Nb3 (15.g4 Ng4 (15...ab4?! 16.gh5 ba3 17.Ba3 Ba3 18.Rb1=) 16.hg4 Qf2 17.Kd1 Bg4 18.Kc1 ab4 19.cb4 Be7 20.Ng6 hg6 21.ed5 Bf5–+) 15...a4 (better is 15...ab4!? 16.g4 ba3–/+) 16.Na5 Be7 (< 16...de4 17.Nc4 Qc7 18.g4+/–; 16...Ne4?! 17.Be4 de4 18.g4=+) 17.ed5 (17.g4!? Ne4 18.Nf3=) 17...Nd5–/+ 18.Nc4 Qa6 19.Bf1 b5 20.Na5 e4 21.Bg2 Bh4 22.gh4 Nf4 23.Be4–/+ Ne5 24.c4 Rae8 25.0–0 Qc8 26.Be5= Re5 27.f3?? Qh3–+ 28.Ra2 Qg3 29.Kh1 Qh3?? 30.Kg1 Qh4 31.Qh2 Nh3 32.Kg2 Rg5 33.Kh1 Qe4!! 34.Qh3 Bf3 35.Rf3 Rf3 (36.Qh7 Kh7 37.Rg2 Rf1 38.Kh2 Qg2#) 0–1. Juswanto,Denny (2430) – Mas,Hafizulhelmi (2315), Jakarta op, 1997.

7.c3 e5 8.Nf3 Bd6 9.0–0 =+.

7.Nc3 e5 8.Na4 Qc7 9.b5 Nd7 (9...Nf6 10.b6 Qe7 11.g4=+) 10.c4 d4 11.Nf3 Be7 12.0–0 (12.d3 Bf3 (12...Rd8= 13.g4 Bg6=) 13.Bf3 Ngf6=) 12...Ngf6 (12...Nh6 13.Qb3 0–0=) 13.d3 (13.Nh4 cb5= (13...0–0=)) 13...0–0 14.g4 Bg6 15.Nh4 Ne8 (15...Rac8 16.Qb3=) 16.Ng6 hg6 (16...fg6 17.bc6 bc6 18.e3=) 17.e3+= cb5 (17...c5 18.Qb3+=) 18.cb5+/– de3 19.fe3 Bg5 (19...Nd6 20.Rc1 Qd8 21.Qb3+/–) 20.Qe2 Rd8 (20...Rb8 21.Bc3+/–) 21.Kh1 (21.Rac1 Qd6+/–) 21...Ndf6 22.Rac1 Qd6 23.Bb7 Qd3 24.Qd3 Rd3 25.Rc3 Rd2 26.Bc1 Rd8 27.Nc5 Nd6 28.Bc6 Rb8 29.a4 Rfd8 30.Bb2 Rbc8 31.Rfc1 Nde8 32.Rb3 Rd2 33.Be5 Nd6 34.e4 Nfe4 35.Ne4 Ne4 36.b6 Nf2 37.Kg1 Nd3 38.b7 Rf8 39.b8Q Nc1 40.Qb7 Nb3 41.Qb3 Rfd8 42.Bb5 Rd1 43.Kf2 R8d2 44.Kf3 Re1 45.Bc7 Rh1 46.Bg3 Rc1 47.Bd3 Kh7 48.Bf4 Bf4 49.Kf4 Rcd1 50.Bb5 f6 51.Qe3 Rb2 52.Bd3 Rdd2 53.Be4 Rf2 54.Kg3 f5 55.gf5 gf5 56.Bf3 Rf1 57.Qc5 Kg6 58.Qa5 Rfb1 59.h4 Rb6 60.h5 Kf6 61.Qc3 Kf7 62.a5 Rf6 63.Qc7 Kg8 64.Bd5 Kh7 65.Qc8 (65...Rg6 66.hg6 Kh6 67.a6+–) 1–0. Woelfelschneider,Peter – Meier, HPP, 2000.

7.Nf3 Nd7 8.0–0 (8.g4 Bg6=+) 8...ab4 (8...Bf3 9.Bf3 ab4 10.e4 de4 11.Be4–/+) 9.Bd4 Qb5 10.ab4 (10.Re1 e6=+) 10...Ra1–/+ 11.Ba1 Qb4 12.d3 (12.Re1 Ngf6–/+) 12...Ngf6 (12...Bf3 13.Bf3 Ngf6 14.Bf6 Nf6 15.c3–/+) 13.Nbd2 e6 14.c4 Bd6 (14...Bf3 15.Bf3 b5 16.e4=+) 15.Bf6 (15.Qc2 Qa5=+) 15...Nf6 16.Qa1 (16.g4 Bg6 17.Qa1=) 16...Qa3 (16...Bf3!? 17.Nf3 Ke7=+) 17.Qa3= Ba3 18.Ra1 Bf8 19.Ra7 (19.g4 Bg6 20.Ra7 Kd7=) 19...Kd7 (19...b5 20.g4 Ng4 21.hg4 Bg4 22.Ne5 Be2 23.Nc6+–) 20.Rb7 Kc8 21.Ra7 Kb8 22.Ra2 Bd6 23.e4 de4 24.de4 Bf3 25.Nf3 Nd7 26.Kf1 Rd8 27.Ke2 Kb7 28.Nd4 e5 29.Nf5 Bf8 30.f4 ef4 31.gf4 Nc5 32.Ne3 Ne6 33.Kf3 Rd3 34.f5 Nd4 35.Kf4 g5 36.Kg5 Re3 37.Kf6 Ne2 38.Kf7–/+ Bc5 39.Rd2 Kc7 40.f6 Nf4 41.Rf2 Ng6 42.Rd2 Bb4 43.Rb2 Bc3–/+ 44.Rf2 Rg3 45.c5 Kd7 46.Kg8 Ke8 47.Bf3 Bd4 48.Rf1 Nf8 49.Bg4 h5 50.Rf3 Rg1 (51.f7 Ke7–+) 0–1. pcmvr (1955) – MerchantParkPro (2055), internet, 2006.

7.Nf3 Bf3 8.Bf3 ab4 9.a4 =+.

5.Bg2 Nf6

6.d3 e5 7.Be5 Bb4 8.c3 =+.

6.d3 e6 7.a3 a5 8.ba5 Qa5 9.Qd2 Qb6 10.c4 dc4 11.dc4 Nbd7 12.Nf3?? Ne4–+ 13.Qc2 Qf2 14.Kd1 Ng3 15.Bd4 Qg2 16.Rh2 Qf1 17.Ne1 Nc5 18.Rf2 Qh1 19.Nc3 Rd8 (20.Nd5 ed5–+) 0–1. thotares (1680) – pierre (2175), internet, 2007.

6.Nf3 e6 7.a3 a5 8.0–0 Bf3 9.Bf3 ab4 10.d3 Nbd7 11.e4 ba3 12.Na3 Qb6 13.Rb1 de4 14.de4 Qc7 15.Nc4 Ra4 16.e5 Rc4 17.ef6 Nf6 18.Ra1 Qc8 19.Qd3 b5 20.Rfd1 Bb4 21.Be2 Be7 22.Ra7 Ra4 (23.Ra4 ba4–/+) 0–1. pcmvr (2515) – martp (2630), net–chess.com, 2006.

6.Nf3 e6 7.a3 a5 8.ba5 Ra5 9.0–0 b5 =+.

6.Nf3 e6 7.a3 a5 8.c3 Bf3 9.Bf3 Bd6 10.d3 ab4 11.ab4 Ra1 12.Ba1 0–0 13.Nd2 Qb6 14.Nb3 Nbd7 15.e3 Ne5 16.0–0 Nf3–/+ 17.Qf3 Ra8 18.Qe2 e5 19.Bb2 e4 20.Ra1 Ra1–+ 21.Ba1 Qa6 22.Kg2 Qa4 23.Qd1 ed3 24.Qb1 Ne4 25.f3 Ng3 26.Nd4 d2 27.Nb3 Qb5 28.Nd4 Qf1! (29.Qf1 Nf1 30.Kf1 d1Q 31.Kg2 Qd2 32.Kf1 Bg3 33.Ne2 Qe1 34.Kg2 Qf2 35.Kh1 Qh2) 0–1. thotares (1665) – pierre (2115), internet, 2007.

6.Nf3 e6 7.a3 c5 8.c4 dc4 9.Ne5 cb4?? (Better is 9...Nd5=) 10.Bb7+– c3 (10...ba3 11.Na3 Nbd7+–) 11.dc3 (11.Ba8?! cb2 12.Ra2 ba3 13.Na3 Qd4=) 11...Qd1 12.Kd1 Nbd7 13.Ba8 Ne5 14.g4 ba3 15.Ba3 Bg6 16.Bf8 Kf8 17.Kc1 Bb1 18.Kb1 g5 19.Ra7 h5 20.gh5 Rh5 21.Kc2 Kg7 22.Rg1 Kh6 23.Bg2 Rh4 24.Ra8 Kg6 25.e3 Kf5 26.Rd1 Ne4 27.Ra4 Nf2 28.Rh4 gh4 29.Rd4 Kg5 30.Rd2 Nfg4 31.hg4 Nc4 32.Rd3 Ne5 33.Rd4 Ng4 34.Rg4 Kg4 35.c4 Kf5 36.c5 Kf6 37.Kd3 Ke7 38.Kc4 Kd7 39.Kb5 Kc7 40.c6 f6 41.Kc5 f5 42.Bh3 (42...e5 43.Bf5+–) 1–0. pcmvr – Alissa, ChessWorld.net, 2002.

6.a3 Nbd7

7.d3 a5 8.g4 Bg6 9.b5 Qb6 10.Nf3 Qb5=+ 11.Qc1 Ra6 12.Bd4 c5–/+ 13.Bf6 Rf6 14.Nc3 Qc6 15.Nh4 Nb6 16.Nd5 Nd5 17.c4 Qc7 18.cd5 a4 19.Rb1 Qa5 20.Qd2 Qd2 21.Kd2 b6 22.Rhc1 h5 23.g5 Rd6 24.Rc4 Bh7 25.Ra4 e5 26.Ra8 Rd8 27.Rd8 Kd8 28.Rb6 Kc7 29.Rc6 Kd7 30.Ra6 Be7 31.Nf3 f6 32.Ra7 Kd6 33.Ke1 c4 34.gf6 gf6 35.dc4 Rc8 1–0. Schulz,Hans_Juergen – Meier,Franz, TT–13.11 ETC, 2004.

7.d3 e5 8.Nf3 Bf3 9.Bf3 =+.

7.Nf3 Bf3 8.Bf3 e5 =+.

7.g4 Bg6 8.Nf3 e6 9.d3 c5 10.c3 Bd6 11.Nbd2 0–0 12.bc5 Nc5 13.c4 Rc8 14.0–0= Bf4 15.Rb1 Re8 16.Be5= Be5 17.Ne5 dc4 18.Ng6 hg6 19.Nc4 Nd5 20.Qd2 e5 21.e3 Nf6 22.Rfd1 b6 23.Qe2 Qc7 24.Rbc1 e4 25.d4 Nd3–+ 26.a4 Nc1 27.Rc1 Qd7 28.Ra1 Rc7 29.Ne5 Qd5 30.Qb5 Qb5 31.ab5–/+ Nd7 32.Nd7 Rd7 33.Kh2 Ree7 34.Rc1 Kh7 35.Kg3 Rd8 36.h4=+ Rd5 37.Bf1 g5=+ 38.h5 Rd8 39.Rc6 Kg8 40.Bc4 Kf8 41.Bb3 Rde8 42.Bc2 Kg8 43.Bb3= Kh8 44.Bd5 Kh7 45.Bb3 Rd7 46.Kg2 ½–½. Kuhlmann,AEJ – Malm,Arthur, email 4AMM–02, 1997.

7.Nf3 e6

8.0–0 Bf3 9.Bf3 a5 10.ba5 Qa5 =+.

8.Ne5 a5 9.Nd7 Nd7 10.0–0 ab4 11.ab4 Ra1 12.Ba1 Qb6 13.Bb2 –/+.

8.Ne5 Ne5 9.Be5 Bd6 10.Bd6 Qd6 11.d3 0–0 12.Qd2 Bg6 13.0–0 a5 14.ba5 Qc7 15.Rc1 Ra5 16.c4 Rfa8 17.Qb2 Qe7 18.Ra2 dc4 19.Rc4 Nd5 20.Qd2 c5 21.Rb2 Qc7 22.Rc1 Qc6 23.Rb3 b6 24.Qb2 R5a6 25.Nd2 Rd8 26.Nc4 Rb8 27.d4 Rd8 28.Nb6! Rb6 29.Bd5 Rb3 30.Bb3 Qb7 31.Rc5 h6 32.f3 Rb8 33.Kg2 Qa6 34.Rc3 Qb6 35.e4 Qd6 36.a4 Qb4 37.Qd2 Rd8 38.Rd3 Qd6 39.d5 e5 40.Rc3 Qb4 41.Qe3 Rb8 42.Bc2 f6 43.Rb3 Qf8 44.Rb8 Qb8 45.Qc5 Qb7 46.d6 Be8 47.Qc4 Kh7 48.Bb3 Ba4 49.Ba4 Kg6 50.Bb3 h5 51.Qg8 h4 52.gh4 Qd7 53.Be6 (53...Qe6 54.Qe6 Kh6 55.d7 Kg6 56.Qg4 Kf7 57.d8Q g5 58.Qh5 Ke6 59.Qhe8#) 1–0. Buss,Michael – Malm,Arthur, corr 4AMM–02, 1997.

8.Ne5 Be7 A) 9.g4 Ne5 10.Be5 Bg6 11.Nc3 0–0 12.0–0 Nd7 13.Bg3=+; B) 9.0–0 B1) 9...0–0 10.f4 a5 11.g4 Bg6 12.Ng6 fg6 13.ba5=+; B2) 9...Ne5 10.Be5 0–0 11.c3 a5 12.Bd4 Nd7 13.f4–/+ –0.72; C) 9.Nd3 C1) 9...Bg6 10.Nc3 d4 11.Na4 e5 12.0–0 Be4 13.f4=+; C2) 9...a5 10.ba5 Qa5 11.Nf4 0–0 12.Nc3 e5 13.Nh5=+; C3) 9...Qb6 10.Nf4 0–0 11.Nc3 a5 12.Na4 Qd8 13.Bc3=+; C4) 9...0–0 10.Nf4 a5 11.Nh5 Nh5 12.e4 Nhf6 13.e5=+; D) 9.d3 D1) 9...0–0 10.Nd7 Qd7 11.c4 a5 12.c5 ab4 13.ab4=+; D2) 9...Ne5 10.Be5 0–0 11.c4 a5 12.b5 cb5 13.cb5=+.

8.d3 a5

9.ba5 Qa5 10.Nbd2 Bd6 11.0–0 0–0 12.c4 Qc7 13.Qc2 Ra6 14.cd5= ed5 15.e3 Rfa8 16.Nb1 Qb6 17.Nh4 Bg6 18.Ng6= hg6 19.Bd4 Qd8 (20.a4 Be5 21.Be5 Ne5=). Heyer – Heim, Hessen clubgame, 1995.

9.g4 Bg6 10.g5 Nh5 11.Nbd2 h6 12.gh6=+ Rh6 13.Bc3 Nf4 14.Bf1 Bf5 15.ba5 Bh3 16.Bh3 Nh3 17.Qb1 Qc7 18.Qb2 Ng5 19.Rh6=+ gh6 20.Ne5 Nc5 21.Bd4 h5 22.Rb1 Ra5 23.Bc5 Rc5 24.Qb7 Qb7 25.Rb7 Bd6 26.f4 Rc2 27.e3 Be5 28.fe5 h4 29.Rb8 Ke7 30.a4 Ra2 31.Rg8 Ra1 32.Ke2 Rg1 33.Nb3 h3 34.Rh8 Rb1 35.Nd2 Ra1 36.Rh4 Ra2 37.Rh5 f6 38.ef6 Kf6 39.a5 Kf5 40.Rh8 Ra5 41.Rf8 Kg4 42.Rf4 Kh5 43.Rf1 Ra2 44.Rf2 c5 45.Rf1 c4 46.Rc1 Kg4 47.dc4 Ne4 48.Rg1 Kf5 49.Rf1 Ke5 (50.cd5 Rd2 51.Ke1 ed5–+) 0–1. bambinik (2530) – cuzmerlin (2485), internet, 2003.

9.c3 ab4

10.cb4 c5 11.Qb3 cb4 12.ab4 Ra1 13.Ba1 Qb6 14.Bc3 Bd6 15.Qb2 0–0 16.0–0 Rc8 17.Rd1 Qc7 18.Rc1 Ne5 19.Ne5 Be5 20.Qd2 Bc3 21.Rc3 Qb8 22.g4 Bg6 23.Qf4 Ne8 24.Qb8 Rb8 25.f4 Nd6 26.Rc7 Ne8 27.Rc5 Ra8 28.Nc3 Ra1 29.Kf2 b6 30.Rc6+– Ra3 31.Rc8 Kf8 32.Nb5 Ra4 33.Nd6 f6 34.f5. Crafty 19.01 – EXchess 3.11, 2006.

10.cb4 c5 11.bc5 Bc5 12.0–0 0–0 13.Qd2 Rc8 14.Nc3 Nb6 15.Rfc1 Re8 16.g4 Bg6 17.Ne5 Bd4 18.Ng6 hg6 19.e3 Bc3 20.Rc3 Rc3 21.Bc3 e5 22.Ba5+/– Re6 23.Rb1+– d4 24.Qb4 Nfd7 25.ed4 ed4 26.Qd4 Qc7 27.Bc3 Nf6? 28.g5 Rd6 29.Qe5 Nbd7 30.Rb7 Qb7 31.Qd6 Ne8 32.Qe7 Qc8 33.Bd5 Nd6 34.Qd6. Fritz 5.32 – EXchess 3.11, 2006.

10.cb4 c5 11.bc5 Bc5 12.0–0 0–0 13.d4 Be7 14.Nc3 Ne4 15.Ne4= de4 16.Nd2 f5 17.Re1 Nb6 18.Rb1 Ba3 19.Ba3 Ra3 20.Rb6 Qb6 21.Nc4 Qb3 22.Na3 Qa3 23.Qb1 Qc3 24.g4 fg4–+ 25.hg4 e3 26.f3 Bg6 27.Qa1 Qd2 28.Bf1 Bc2 29.Rc1 b5 30.Qb2 Ba4 31.Qc3 Bb3! 32.Qb3 Qc1 33.Qe6 Kh8 34.d5 –+. EXchess 3.11 – Crafty 19.01, 2006.

10.cb4 c5 11.g4 Bg6 =+.

10.cb4 Bd6 11.0–0 0–0 12.Nbd2 e5 13.Rc1 e4 14.de4= de4 15.g4 Bg6 16.Nh4 Be5 17.Ng6 hg6 18.Be5 Ne5 19.Ra1 e3 20.fe3 Qb6 21.Qb3 Rfd8 22.Qc3 Nfd7 23.Nf3 Re8 24.Nd4 Rac8 25.Rac1 c5 26.bc5+= Rc5 27.Qb4 Qc7 28.Nb3 Rc1+= 29.Rc1 Nc6 30.Qf4 Qf4 31.ef4+/– Re2 32.Bc6 bc6 33.Rc6 Re3 34.Rc8 +–. Crafty 19.19 – EXchess 3.11, 2006.

10.cb4 Be7 11.Nbd2 0–0 12.0–0 c5 13.bc5 Bc5 14.e4 de4 15.de4 Qe7 16.Qb3 Nb6 17.Rfd1 Ra4 18.g4 Bg6 19.Nh4 Nfd7 20.Ng6 fg6 21.Nf3 Kh8 22.e5 Rc4 23.Rd2 Rcf4 24.Rad1 Nd5 25.Bc1 R4f7 26.Re2 N7b6 27.Rc2 Nf4 28.Bf4+/– Rf4 29.Rdc1 Na4= 30.Rb1 b6 31.Rd1 Rb8 32.Rcd2 Rbf8 33.Rd7 Qe8+= 34.Rc7. Fritz 5.32 – Crafty 19.19, 2006.

10.ab4 Ra1

11.Ba1 c5 12.bc5 Bc5 13.Nbd2 0–0 14.0–0 Qc7 15.Qb3 Ra8 16.c4= dc4 17.Qc4 Rb8 18.Qb5 Bd6 19.Nc4 Bc5 20.g4+/– Bg6 21.Nfe5 h6 22.g5 hg5 23.Ng6 fg6 24.d4 Ba7 25.Bb2 g4 26.Ra1 Bb6 27.Rc1 gh3 28.Bh3+– Re8 29.e4! Ba7 30.e5 Qc6 31.Qb3 Qd5 32.Bg2 Ne4 33.Qc2 Bd4 34.Be4. Fritz 8 – Crafty 19.19, 2006.

11.Ba1 Bd6 12.Nbd2 0–0 13.Bb2 Qb6 14.Qa4 Bf3 15.Nf3 Re8 16.Nd4 c5 17.Nb5 Qc6 18.c4 cb4 19.0–0 Rb8 20.cd5 Nd5=+ 21.Rc1 Bc5 22.d4 Qa6 23.Qa6 ba6 24.dc5 Rb5 25.c6 N7b6 26.c7 Nc8 27.e4 Nde7 28.Bf1 Rb6 29.Bc4 a5 30.Bb3 Rd6 31.Kf1 h6 32.Be5 Rd3 33.Bc4 Rd7 34.Ba6. Fritz 9 – Crafty 19.19, 2006.

11.Ba1 Bd6 12.Nbd2 0–0 13.g4 Bg6 14.Nh4 Qc7 15.Ng6 fg6 16.Nf3 Ne5 17.Ne5 Be5=+ 18.Bb2 Bh2 19.c4= dc4 20.dc4 Rd8 21.Qb3 Qd6 22.Bc3 Qf4 23.e3 Qc7 24.g5 Nd7 25.c5 Nf8 26.b5 Be5 27.Bb4 Bh2 28.Ke2 cb5 29.f4 Bf4 30.ef4 Qf4 31.Rf1 Qg5 32.Bb7 Rd4 33.Rf3 Qg2 34.Rf2. Fritz 6 – Crafty 19.19, 2006.

11.Ba1 Bd6 12.Nbd2 Qe7 13.0–0 0–0 14.b5 cb5 15.Qb3 b4 16.c4 Rb8 17.Rc1 dc4 18.Nc4 Bc5 19.d4 Ba7 20.Bb2 Rc8 21.Qa4 Nb6 22.Qa7=+ Nc4 23.Ne5 Nd6 24.Rc8 Nc8 25.Qb8 Qf8 26.g4+/– Bg6 27.Qb7 Nd5 28.Bd5 ed5 29.Qd5 Bc2 30.Nf7!+– Qf7 31.Qc6 Ne7 32.Qc2 b3 33.Qc7 Qe6 34.d5! Fritz 8 – Crafty 19.01, 2006.

11.Ba1 Bd6 12.g4 Bg6 13.Nbd2 0–0 14.Bb2 h5 15.g5 Nh7 16.h4 f6 17.gf6 Qf6 18.Qa1 Bf4 19.c4 Bd2 20.Kd2 Qe7 21.c5 b6 22.Qa7 bc5 23.bc5 Qf7 24.Ke1 Bf5 25.Rg1 Bg4 26.Bh3 Nhf6 27.Ng5+= Qe8 28.Bf6 gf6 29.Bg4 hg4 30.Nf3 f5 31.d4 Qb8?? 32.Qb8 Rb8= 33.Kd2 Rb2 34.Kd3. Comet B50 – Crafty 19.19, 2006.

11.Ba1 Be7 12.Nbd2 0–0 13.0–0 e5 14.Nh4 Ne8 15.Nf5 Bf6 16.c4 Nb6 17.c5 Nd7 18.d4 Bg6 19.de5 Be5 20.Nd4 Nc7 21.f4 Bd4 22.Bd4 Nb5 23.Ba1 Qe7 24.f5 Bh5 25.g4 Qe3 26.Rf2 Nc3 27.Bc3 Qc3 28.gh5 Qb4 29.h6 gh6 30.e4+– de4 31.Ne4 Nc5 32.Nf6 Kg7 33.Qa1 Ne6 34.fe6 Kg6 (35.Be4 Kg5+–). Fritz 9 – EXchess 3.11, 2006.

9.c3 Bd6

10.Nbd2 ab4 11.ab4 Ra1 12.Ba1 e5 13.0–0 =+.

10.Nbd2 Qb6 =+.

10.Nbd2 0–0

11.0–0 Qb6 12.g4 Bg6 13.Nh4 Qc7 14.Ng6 fg6 15.Qc2 b5 16.Nb3 a4 17.Nd4 Rfe8 18.c4 bc4 19.dc4 e5 20.Nf3 Qb8 21.Rad1 e4 22.Nd4 Rc8 23.g5 Nh5 24.Ne6 (24.c5 Bh2 25.Kh1 Ne5+=) 24...Nb6= 25.cd5 (25.c5 Bh2 26.Kh1 Nc4=+) 25...cd5=+ 26.Qd2 Re8 27.Nc5 Nf4 28.Ne4 de4 29.Qd6 Qd6 (29...Nc4 30.Qb8 Rab8 31.Rb1 Ne2 32.Kh1=+) 30.Rd6= Nc4 31.Rc6 Nb2 32.Rc2 Nbd3 33.ed3 ed3 (< 33...Nd3 34.Rc4+–) 34.Rc4 Ng2 35.Kg2 Rac8 36.Rc8 Rc8 37.Kf3 Rc3 38.Ke3 Ra3 39.Rb1 d2 40.Kd2 Rh3 41.b5 Rf3 (41...a3 42.Rb4 a2 43.Ra4=) 42.b6+= Rf2 43.Kc3 Rf8 44.Kb4 a3 45.Ka3 Rb8 46.Ka4 Kf7 47.Kb5 Ke7+/– 48.Ka6 Ra8 49.Kb7 Ra2 50.Kc7+– Rc2 51.Kb8 Kd7 52.Ra1 Rc5 53.b7 Rg5 54.Rd1?? Ke6?? 55.Rb1+– Rc5 56.Ka7 Rc7 57.Ka6 Rb7 58.Kb7 g5 59.Rh1 h5? 60.Rh5+– Kf5 61.Kc6 g6 62.Rh1 g4 63.Kd5 g3 64.Kd4 Kf4 65.Rf1 Kg4 66.Ke3 g2 67.Re1 Kg3 68.Rb1 g5 69.Rd1 Kh2 70.Kf2 g4 71.Re1 g3 72.Kf3 g1Q 73.Rg1 Kg1 74.Kg3 ½–½. Pierred (2185) – GeShreddert (2530), Rated game, 3m + 0s, 2005.

11.0–0 Qb6 12.g4 Bg6 13.Nh4 Qc7 14.Ng6 (14.g5 Nh5=+) 14...fg6 15.Qc2 b6 (15...Nb6 16.Nb3=+) 16.Nb3 (16.Nf3 Ne5=) 16...c5=+ 17.bc5 bc5 18.c4 a4 (18...Rab8 19.g5 Qb6 20.gf6 Qb3 21.Qb3 Rb3 22.fg7=+) 19.Nd2 Nb6 20.Rab1 Kh8 (20...Rab8 21.Nf3=) 21.g5 Nh5 22.e3 Rab8 (22...Qd8 23.f4=) 23.Nf3 (23.Bc3 Rf5+=) 23...Kg8 (23...Rf5 24.Bc3=) 24.Bc3+= Ra8 (24...Qa7!?+=) 25.Rb5+/– Nc8 26.cd5 ed5 27.Be5! Ra5 28.Rfb1 Rb5 29.Rb5+– Qd7 30.Qa4 Qe8 31.Bd6 Nd6 32.Ra5 Qa4 33.Ra4 Nf7 34.Ra5 Rc8 35.Nd2 Ng5 36.Bd5 Kf8 37.h4 Nf7 38.Bf7 Kf7 39.Ne4 Ke7 40.Nc5 Kd6 41.d4 Kd5 42.f3 Kd6 43.Kf2 Rb8 44.e4 Rb2 45.Ke3 Rb1 46.Ra6 Ke7 47.d5 Rd1 48.Ra7 Kd6 49.Nd3 Nf6 50.Rg7 Nd7 51.Rh7 Ra1 52.Kd4 Rd1 53.f4 Kc7 54.e5 Kd8 55.d6 Kc8 56.e6 Rd3 57.Kd3 Nc5 58.Kd4 Ne6 59.Kd5 Nd8 60.Rc7 Kb8 61.Rd7 Nb7+– 62.Rb7! Kb7 63.Ke6 Kb6 64.d7 Kc7 65.Ke7 Kb6 66.d8Q Kb5 67.Qe8 Kc4+– 68.Kf6 Kb3 69.Qe7 Kc4 70.Kg6 Kd3 71.h5 Kc2 72.h6 Kd3 73.Qd6 Ke3 74.h7 Kf3 75.Qd3 Kf4 76.h8Q Kg4 77.Qhd4# 1–0. bambinik – MIKHAL, internet, 2002.

11.0–0 Qb6 12.g4 Bg6 13.Nh4 Rfd8 14.Ng6 hg6 15.Qc2 Qc7 16.Rfc1 Bh2 17.Kf1 Bf4 18.e3 Bd6 19.Nb3 ab4 20.ab4 g5 21.Nd2 Ne5 22.Ra8 Ra8 23.Nf3 Nf3 24.Bf3 Qe7 25.Ra1 Ra1 26.Ba1 b5 27.Qb1 ½–½. pvanr (2250) – gluv51 (2040), gameknot.com, 2015.

9.c3 Bf3

10.Bf3 ab4 11.cb4 Bd6 12.0–0 Qb6 13.d4 0–0 14.Nd2 e5 15.Bg2 e4 16.e3 Qa6 17.Re1 Nb6 18.Bf1 Qa7 19.Rc1 Na4 20.Ba1 Qb8 21.Bg2 Qe8 22.Qc2 Nb6 23.Bb2 Qe6 24.Kh2 Ra7 25.Kg1 Rfa8 26.Rf1 Na4 27.Ba1 Qf5 28.f4 Nb6 29.Bb2 Qg6 30.g4 Ne8 31.Rfe1 Be7 32.Qb3 Nd6 33.Bf1 h5 34.g5 h4 35.Kh1 Nf5 36.Bg2 Na4 37.Ba1 Kh7 38.Nb1 Nb6 39.Bb2 Nd6 40.Nd2 Na4 41.Ba1 Kg8 42.Bf1–/+ Bf8 43.Be2 Nf5 44.Bg4 Nb6 45.Bb2 Be7 46.Kh2 Na4 47.Ba1 Nd6 48.Rc2 Nb6 49.Bb2 Nb5 50.Ra1 Na4 51.Bc1 Bd6 52.Kg2 Bf4! 53.ef4 Nd4 54.Qb1 e3 55.Rca2 ed2 56.Bd2 Qb1 57.Rb1 Nb5 58.Rb3 d4 59.Bc1 Nac3 60.Rd2 Re8 61.Rc2 Kf8 62.f5 f6 63.gf6 gf6 64.Rd2 Re1 65.Rc2 Ke7 66.Kf2 Re5 67.Kg2 b6 68.Rf2 c5 69.bc5 bc5 70.Rf1 c4 71.Rb4 Ra4 72.Ra4 Na4 73.Bf4 Re4 74.Bh2 Nc5 75.a4 Na3 76.Bf3 Re3 77.Bf4 Nc2 78.Bd1 Ne1 79.Kg1 Re4 80.Bd2 Ned3 81.Bh6 Re5 82.Bc2 Nb4 83.Bd1 c3 84.Bf4 Rf5 0–1. Bonetti,Shane – Benassi,Aspasio, corr or02–024, 2003.

6.Nf3 Nbd7

7.0–0 e6 8.a3 a5 9.c3 Bd6 10.d3 0–0 11.Nbd2 Qb6 12.Qc2 Bg3 13.e3 (13.c4 Bb8–/+ (13...ab4?! 14.Bd4 c5 15.Bf6=)) 13...Bd6 14.ba5 (14.Rfb1 ab4 15.ab4 Rfd8–/+) 14...Qa5–+ 15.c4 Qa4 16.Qc3 (16.Qa4 Ra4 17.Rfb1 Rb8–+) 16...Rfd8 (16...e5 17.cd5 cd5 18.Rfc1–+) 17.cd5 (17.Nd4 c5 18.N4f3 b5–+) 17...ed5 (17...cd5 18.Rfc1–+) 18.e4 (18.Nb3 Re8–+) 18...Bf3 19.Bf3 Ne5 (20.Rfe1 d4 (20...Nf3?! 21.Nf3 de4 22.de4–+) 21.Qd4 Qc2–+; 19...de4 20.Be4 Be5 21.d4–+) 0–1. StephenHilton (1660) – pierre (2060), internet, 2006.

7.0–0 e6=+ 8.a3 Bd6 9.d3 0–0 (9...Bf3 10.Bf3 a5 11.Qd2=+) 10.c4 Qe7 (10...e5 11.c5 Bc7 12.Qd2=) 11.c5 Bc7 12.Qc2 (12.Nbd2 e5=) 12...e5 (12...Bf3 13.Bf3 e5 14.Nd2=) 13.g4 (13.Nh4 Rad8=) 13...Bg6 14.Nh4 Rfd8 (14...a5 15.Ng6 fg6 16.Nd2=) 15.Ng6 hg6 (15...fg6 16.e4=) 16.Nd2 Nf8 (16...a5 17.e3=) 17.e3 (17.Nf3 N6d7=) 17...Ne6 18.Rae1 Nd7 19.f4 ef4 20.ef4 Qh4 21.Nf3 Qg3 22.f5 Ng5 23.Ng5+= Qh2 24.Kf2 Bg3 25.Kf3 Bh4 26.fg6 fg6 27.Qc3 Rf8 28.Ke2 Qg2 29.Kd1 Rf6 30.Rg1 Be1 31.Rg2 Bc3 32.Bc3 Rf1 33.Kd2 Re8 34.Re2 Re2 35.Ke2 Rg1 36.a4 Rg2 37.Ke3 a5 38.d4 Rg3 39.Kd2 ab4 40.Bb4 Nf6 41.Ke2 Nh7 42.Be1 Rg2 43.Kf3 Ra2 44.Kf4 Ng5 45.Kg5 Ra4 46.Bf2 Ra2 47.Be1 Re2 48.Bg3 Re3 49.Bh2 Rh3 50.Bg1 Kf7 51.Bf2 Rb3 52.Bg1 b6 53.cb6 Rb6 54.Be3 Rb2 55.Bg1 Re2 56.Kf4 Re4 57.Kf3 Kf6 58.Be3 Re3 59.Ke3 Kg5 60.Kf3 Kh4 61.g5 Kg5 (62.Ke3 Kg4–+) 0–1. Pierred (2145) – MajorTom (2445), Rated game, 2m + 0s, 2005.

7.0–0 Bf3 8.Bf3 e5 9.a3 Bd6 10.d3 Nb6 11.c3 e4 12.Bg2 0–0 13.Nd2 e3 14.fe3 Bg3 15.c4 Nbd7 16.Rf5 Qe7 17.Nf1 (17.cd5 cd5 18.e4 Qe6=) 17...Be5 18.Be5 Ne5 19.cd5 cd5 20.Rc1 Rac8 21.Rc8 Rc8 22.Qa1 Ng6 23.Qd4 Qe6 24.Ng3 a6 25.Kh2 Ne7 26.Rf2 b6 27.e4 de4 28.Ne4 Nfd5 29.Bf3 Rd8 ½–½. Cottarelli,Franco – Buss,Michael, corr 3GMM½–01, 1999.

7.a3 Bf3 8.Bf3 e5 9.d3 =+.

7.g4 Bg6 =+.

7.a3 e6

8.d3 Bf3 9.Bf3 a5 10.ba5 Qa5 11.Qd2 =+.

8.g4 Bg6 =+.

8.d3 a5

9.c3 ab4 10.ab4 Ra1 11.Ba1 Bd6 12.Qa4 Bf3 13.Bf3 Ne5 14.Nd2 Nf3 15.Nf3 0–0 16.Bb2 e5 17.c4 e4 18.de4 de4 19.Nd4 Qe7 20.c5 Be5 21.Nf5 Qe6 22.Be5 Qe5 23.Nd6 Qc3 24.Kf1 e3 25.f3 Qd2 26.Nb7 Nd5 27.Nd6 Nb4 28.Ne4 Qb2 29.Qd1 f5 30.Ng5 Ra8 31.Kg2 Qa2 32.h4 h6 33.Nh3 Nd5 34.Ng1 (34.Re1 Rd8–/+). Comet B25 – Crafty 19.19, 2006.

9.c3 ab4 10.ab4 Ra1 11.Ba1 Be7 12.Nbd2 0–0 13.0–0 e5 14.Nh4 Ne8 15.Nf5= Bf6 16.c4 Nb6 17.c5 Nd7 18.d4 Bg6 19.de5 Be5 20.Nd4 Nef6 21.f4 Bd4 22.Bd4 Bf5 23.g4 Be4 24.Bf6 Nf6 25.Ne4 Ne4 26.Be4 de4 27.Qd8 Rd8 28.Ra1 e3 29.Kg2 Kf8 30.Kf3+/– Rd4 31.Ra4 g5 32.fg5+– Rc4 33.Ke3 Rc3 34.Kf4 Rh3 (35.Ra7 Rb3 36.Rb7 Rb1+–). Fritz 8 – EXchess 3.11, 2006.

9.c3 Bf3 10.Bf3 Bd6 11.0–0 ab4 12.cb4 Qb6 13.d4 h5 14.Qc1 h4 15.gh4? Nf8 16.Qg5 Ng6 17.h5 Nf4 18.Kh1 N6h5 19.h4 Rh6 20.e3 Rg6 21.ef4 Nf4 22.Rg1 Rg5 23.Rg5 Qa6 24.Nc3 Qd3 25.Rg3 Qd2 26.Nd1 Nd3 27.Bc3 Nf2 (27...Nf2 28.Kg1 A) 28...Bg3?! 29.Bd2 Nd1 30.Bd1= (< 30.Rd1 Ra3 31.Rf1 Rd3–/+); B) 28...Qf4 29.Rg7 Qf3 30.Nf2 Qc3–+) 0–1. Crafty 19.19 – Fritz 9, 2006.

9.Qd2 Bf3 10.Bf3 Qb6 11.c4 ab4–/+ 12.0–0 dc4 13.dc4 b3 14.Rd1 Bc5 15.e3 Be7 16.Qc1 0–0 17.Nd2 Rfd8 18.Bd4 Qa5 19.Nb3 Qf5 20.Bg2 e5 21.Bc3 Qe6 22.Bb4 Bf8 23.Qc2= Re8 24.Bf8 Kf8 25.g4 h6 26.a4 Qe7 27.a5 Nc5 28.Nc5 Qc5 29.Qc3 Ra7 30.Qa3 Qa3 31.Ra3 e4 32.Kh2 Re5 33.Rda1 (33.Rb1 Ke7=) ½–½. pcmvr (1895) – pierre (2045), internet, 2006.

9.g4 Bg6 =+.

4.g3 e6

5.c4 Bb4?? 6.Bg7 dc4 7.Bg2 +–.

5.c4 dc4?! 6.Bg2 c6 7.Qc1= a5 8.ba5 Nf6 9.Qc4 Ra5 10.Nf3 Bd6 =.

5.c4 Nf6 6.Qb3 Be7 7.Bg2 0–0 8.Nf3 dc4 9.Qc4 Nbd7 10.0–0 c6 11.d3 Qb6 12.a3 Bf3 13.Bf3 a5 14.Bd4 Qc7 15.b5 Ne5 16.Be5 Qe5 17.Nc3 cb5 18.Nb5 Rac8 19.Qa4 b6 20.Na7 Rc7 21.Nc6 Qd6 22.Rfc1 Rfc8 23.Rc4 Bf8 24.Rac1 Nd5 25.e4 Ne7 26.e5 Qd7 27.Qc2 Nc6 28.Bc6 Qd8 29.Qc3 h5 30.a4 h4 31.Kh2 Bb4 32.Qc2 Qg5 33.d4 Bd2 34.Rg1 hg3 35.fg3 Qe3 36.Rg2 Be1 37.h4 Kf8 38.Kh3 Ke7 39.Kg4 Rd8–/+ 40.d5 ed5 41.Bd5 Rc5 (42.Rc5 bc5–/+) 0–1. R_O_O_K – michaelbuss, ChessWorld.net, 2004.

5.Bg2 Bb4?? 6.Bg7 Nf6 7.Bh8 +–.

5.Bg2 c6 6.Nf3 Nf6=+ 7.a3 Bd6 8.d3 Nbd7 9.0–0 0–0 10.c4= Bg6 11.c5 Bc7 12.Nbd2 h6 13.d4 Ne4 14.Ne4 Be4 15.Nd2 Bg2 16.Kg2 f5 17.f4 Nf6 18.e3 Qe8 19.Qe2 Rb8 20.Bc3 g5 21.Rh1 Qg6 22.Kf2 Kf7 23.Rag1 Rg8 24.Kf1 Nh5 25.g4 fg4 26.hg4= Nf6 27.fg5 hg5 28.Kg2 Rh8–/+ 29.Rf1 Rh1 30.Rh1 Qc2 31.Qf2 Rf8 32.Nb1 Qg6 33.Qe2 Kg7 34.Bd2 Qe4 35.Qf3 Qf3 36.Kf3 Ne4 37.Kg2 Rf2 38.Kg1 Re2 39.Kf1 Ng3 (40.Kg1 Nh1 41.Kh1 Rh2 42.Kg1 Rh4–+; 39...Rd2?! 40.Nd2 Nd2 41.Kf2–+) 0–1. Maly,Wolfgang – Kolar,Pavel, corr EM/H/005 ICCF Email, 1999.

5.Bg2 Nf6

6.a3 c5 7.b5 =+.

6.a3 Nbd7 7.Nf3 c6 8.d3 a5 9.c3 Bd6 10.Nbd2 Qb6 11.Rb1 0–0 12.g4 Bg6 13.0–0 Rad8 14.c4= Bb8 15.Qc2 Qc7 16.Rfc1 dc4 17.Nc4 ab4 18.ab4 Nd5 19.b5 f6 20.Ba3 c5 21.b6 Qf4 22.Qd2 Rc8 23.e3+/– Qh6 24.Na5 Rf7 25.Nb7 N7b6 26.Nc5 Ra7 27.Ra1 Bd6+/– 28.d4 Rca8 29.Bb2 Bf7 30.Ra7 Ra7 31.Qd3 Qg6 32.Qg6+– hg6 33.Ne1 Ra2 34.Ned3 Nb4 35.Bc3 Nd3 36.Nd3 Ba3 37.Rb1 Rc2 38.Bb4 Bb4 39.Rb4 Nd5 (39...Nc4 40.Nc5+–) 1–0. Benko,Pal C – Bellon Lopez,Juan Manuel, Torremolinos, 1973.

6.a3 a5

7.b5 c6 8.Nc3 Bc5 9.Rb1 =+.

7.b5 c6 8.Nc3 e5 9.Rb1 d4 10.Ne4 Ne4 11.Be4= Bg6 12.Bg2 cb5=+ 13.Nf3 Nc6–/+ 14.Bc1 b4 15.Nh4 Bh5 16.0–0 Bc5 17.ab4 ab4 18.Be4 Qd7 19.Bf5 Qd5 20.d3 Ra2 21.Qd2 0–0 22.e4 Qd8 23.Ng2 Qd6 24.f4 f6 25.Kh2 Rfa8 26.Rb2 Bf7 27.Qd1 ef4 28.Nf4 Ra1 29.Qe2 R8a2 30.Ng2 Ne5 31.Bf4–+ g6 32.Ra2 Ra2 33.Be5 Qe5 34.Bc8 b3 (35.Bb7 Ba3–+) 0–1. pcmvr (1965) – pereira (1990), internet, 2007.

7.b5 c6 8.Nc3 e5 9.Nf3 d4 10.Na2 Bd6 11.c3 d3 12.ed3 cb5 13.0–0 0–0 14.Qb3 Ra6 15.Rae1 Re8 16.Nc1 Nc6 17.Ng5 Rb6 18.Ne4 Ne4 19.Be4 Qd7 20.d4 Qh3–/+ 21.Nd3 Re6 22.Bg2 Qf5 23.Nc5 Rh6 24.f4 ed4 25.Re8 Bf8 26.cd4 Rd6 27.d5= Rd8 28.Rfe1 b4 29.Na4+/– Re8 30.Re8 Qb1 31.Kf2 Ne5 32.fe5 (32...Bd1 33.e6 Bb3 34.e7 Rf6 35.Bf6 Qf5 36.Kg1 Qb1 37.Kh2 Qh1 38.Kh1 h5 39.ef8Q Kh7 40.Qg7#; 32.Nb6 Ng4 33.Ke2 Nf6 34.Kf2 Ne8–+; 32.Re5?! Bd1 33.Qe3 Ba4 34.Qb6 Qb2 35.ab4 Qd2 36.Kg1 Qb4=+ (< 36...Bb4 37.d6 Qd1 38.Kh2 Qd6 39.Qd6 Bd6 40.Ra5+/–; 36...ab4?! 37.Kh2=)) 1–0. pcmvr (2775) – pierred (2595), net–chess.com, 2008.

7.b5 c6 8.Nc3 e5 9.g4 Bg6 =+.

7.b5 c6 8.c4 cb5 9.cd5 Nd5 =.

4.g4 Bg6

5.b5 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 Nd7 9.Nf3 h5 10.g5 h4 11.c4 e6 12.cd5 ed5 13.Bg2 c6 14.bc6 bc6 15.0–0 Bd6 (better is 15...Qa8!? 16.Nc3 Bd6+/–) 16.Bg7+– Rh7 17.Bb2 f5 (17...Qb6!? 18.Ba3 Ba3 19.Na3 Be4+/–) 18.Nc3 Ne7 19.Na4 Qa5 20.Qc2 Nc8? (20...Rh5+–) 21.Qc6 Qc7 22.Qd5 Re7 (22...Ne7 23.Qd4 Qb8+–) 23.Rc1 Qa7 (23...Qd8+–) 24.Rc8 1–0. pereira – tylxb, internet, 2016.

5.b5 e6 6.Bg2 Nf6 7.Nf3 c6 8.a4 Qb6 (8...Bc5 9.0–0=+) 9.0–0 (9.Bf6 gf6 10.Nc3 Bb4=+) 9...Bc5 (9...cb5 10.g5 Ne4 11.Bd4=+) 10.Bf6 gf6 11.d4 Bb4 12.c3 Ba5 13.Qb3 Nd7 (13...h5 14.gh5 Rh5 15.c4–/+) 14.Na3 (14.c4 h5=+) 14...Rc8 (14...h5 15.c4–/+) 15.c4=+ Ke7 (15...h5 16.c5 Qd8 17.gh5 Rh5 18.Rac1=+) 16.c5= Qc7 17.Nh4 h5 18.Ng6 fg6 19.f4 (19.bc6!? Qc6 20.gh5=) 19...hg4–/+ 20.hg4 b6 21.bc6 (21.cb6 Qb6 22.Qd3 cb5 23.ab5 Rc3–/+) 21...Qc6 22.Nc4? (22.Nb5 Ra8 23.cb6 Nb6 24.Qa3 Kd7 25.Rac1+–) 22…Nc5?? (23.Qa3 Qa4 24.Qa4 Na4 25.Na5 Nc3=+; better is 22...dc4 23.Qa3 Qc7 24.c6 Ke8 25.cd7 Qd7–+) 0–1. Rupperthal – Kirdin, corr WT–M–GT–222, 1990.

5.c3 e6 6.a4 (6.Nf3 Nd7=+) 6...h5–/+ 7.e3 (7.gh5 Be4 8.Nf3 Bf3 9.ef3 Nf6–/+) 7...Be4 8.Nf3?? (better is 8.f3 Qh4 9.Ke2–/+) 8...hg4–+ 9.Bg2 gf3 10.Bf3 Qh4 11.d3 Bf5 12.e4 de4 13.de4 Be4 14.Nd2 Bc6 15.Bc6 Nc6 16.Qc2 Ne5 17.a5 0–0–0 18.Ra4 Nd3 19.Ke2 Qf2 20.Kd1 Qg2 21.Rf1 Nb4! (22.Rf7 Nc2–+) 0–1. ifairclough – quikeagle, net–chess.com, 2003.

5.c4 e6 6.Bg2 Nf6 7.Qb3 h5 8.Nc3 a5 9.ba5 Ra5 10.cd5 ed5 11.Qb7 c6 12.gh5 Rh5 13.Nf3 Ra6 14.Nd1 Rb6 15.Qa7 Nbd7 16.Bc3 Bc5 17.Ba5 Rb5 18.Qc5 Qa5 19.Qc6 Rc5 20.Qb7 Ne4 21.Qb3 Nd2 22.Qe3 Ne4 23.Kf1 Kf8 24.a3 Ne5 25.Nd4 Qb6 26.Be4 Be4 27.Rg1 Rc8 28.Rg3 Nc4 29.Qc3 Qh6 30.Qb4 Kg8 31.Qb7 Nb6 32.Ke1 Qf6 33.e3 Re5 34.Qa6 Re7 35.Qe2 Rc4 36.Qb2 Na4 0–1. Maarten – SuperDave, itsyourturn.com, 2001.

5.d3 Nd7 6.Bg2 c6 (6...e5 7.Bd5 c6 8.Bc4=+) 7.Nf3 h6 (7...Qc7 8.c4=+) 8.Nbd2 Ngf6 9.c4 dc4 (9...e6 10.c5=) 10.Nc4 e6 11.Qb3 (11.a3 Be7=) 11...Be7 12.Rc1 (12.a3 0–0=) 12...0–0 13.Na5 (13.Qc3 Nb6 14.Nb6 Qb6=) 13...Qb6 (13...Rb8 14.a3=) 14.a3 Rac8 (14...Nd5 15.Bd4 Qb5 16.Qc4=) 15.Bd4 (15.Nc4 Qb5=) 15...c5 16.Be3 (16.Bb2 Nd5=) 16...Qb5 17.Nh4= Bh7 18.Bb7 Rb8 19.a4 Qb4 20.Qb4+/– cb4 21.Ba7 Rb7 22.Nb7 Ra8 23.Bd4 Ra4 24.Rc8 Nf8 25.Nf3 Bg6 26.0–0 Ra2 27.e4 Kh7? 28.Ne5 b3 29.Rb1 Ra4 30.Bc3 (30…N8d7 31.Nc6+–; 30.Bc5!? Bc5 31.Nc5 Ra5+–) 1–0. Diener,Rudolf – Wong,Ray, corr 3GMM–23, 1996.

5.d3 e6 6.Nd2 (6.Qd2 Na6 7.a3 c5=) 6...Nf6 (6...h5 7.gh5 Rh5 8.a3=+) 7.a3 c5 8.bc5 Bc5 9.e3 h6 10.Ngf3 Nbd7 11.c4 0–0 12.Rg1 Rc8 13.h4 (13.g5 hg5 14.Rg5 Be7=) 13...h5 (13...dc4 14.Nc4 b5 15.Ncd2=) 14.gh5 Bh5 15.Be2 (15.cd5 ed5 16.Qa4 Qe7=) 15...dc4 16.Nc4 Be7 (16...a6 17.Nce5 Ne5 18.Ne5 Be2 19.Qe2=) 17.Nd4 (17.Rb1 b6=) 17...Be2 18.Qe2 Nb6 19.Nb6 Qb6 20.Nf3 Qb3 (20...Rfd8 21.Bd4 Qb3 22.Qd1 Qd1 23.Kd1=) 21.Nd4 Qa4 22.Qf3 g6 23.Kf1 (23.Rd1 Qa5 24.Rd2 Rfe8=) 23...Qa6 24.Ne2 Nd7 25.Rd1 Qb5 (25...Bh4? 26.Qh5 e5 27.Qh4+–; < 25...Ba3 26.Ra1 Qd3 27.Ba3+/–) 26.Ba1 Qc6 (26...e5 27.h5 Qb3 28.Nc3+=) ½–½. marekt – hpoli, ChessWorld.net, 2004.

5.d4 e6 6.e3 (6.a3!?=+) 6...Bb4–/+ 7.Bc3 Bd6 8.f4 (8.Nd2 Nf6–+) 8...Qh4–+ 9.Ke2 Qe7 10.Nf3 Nf6 11.Nbd2 c5 12.dc5 Bc5 13.Nb3 (13.Rb1 Nc6–+) 13...Ne4 14.Be1 Nc6 15.Nc5 Qc5 16.Nd2?? (16.Qc1–+) 16…Nc3 (17.Kf2 Nd1 18.Rd1 d4–+) 0–1. alwayslosing (1945) – pierred (2595), net–chess.com, 2008.

5.e3 Nc6 6.b5 Nb4 (6...Na5 7.Nf3=) 7.Na3 (better is 7.d3!? d4 8.Bd4+= (< 8.ed4 Qd5 9.Rh2 Qb5=+)) 7...Nf6=+ 8.Nf3 h5 (8...e6 9.Ne5 Be4 10.f3+–) 9.g5= Nd7 10.h4 (10.Bd4 e6=) 10...e6 11.Be2 Be4 12.0–0 Nc5 (12...Qe7 13.d3 Bf3 14.Bf3=) 13.Ne5 (13.d3 Bf5=) 13...Na4 (13...Bd6 14.d3 (< 14.Bh5 g6 15.f3 Bf5 16.Nf7 Kf7–/+) 14...Na4 15.Bd4+=) 14.Bc1 (14.Bd4 Bc5=) 14...Bd6=+ 15.Nf7?? (15.f4 Qe7=+) 15...Kf7–/+ 16.Bh5? (better is 16.c3 Nc3 17.dc3=+) 16...Kg8–+ 17.f4 g6 18.Bf3 Bf3 19.Rf3 Rh4 20.Nb1 Rg4 21.Kf2 Qd7 22.a3 Qg7 23.d4 Qd7 24.c4? Bf4?? 25.ef4+– Nb6 26.ab4 Nc4 27.Qh1 Qb5? 28.Rh3 Kg7 29.Rh7 Kf8 30.Rh8 Ke7 31.Qh7 Kd6 32.Ra8 a6 33.Rd8 Kc6 34.Qg6 Nd6 35.Qc2 Qc4 36.Qc4 Nc4 37.Nc3 Nd6 38.Be3 Nf5 39.Rc1 Kb6 40.Na4 Kb5 41.Nc5 Ne3 42.Ke3 Kb4 43.Rb1 Kc4 44.Ne6 b5 45.Rc1 Kb3 46.Kf3 Rh4 47.Rc7 a5 48.Rc1 b4 49.Ra8 Kb2 50.Rc5 Kb3 51.Raa5 Rh1 52.Rd5 Rc1 53.Nc5 Kc4 54.Ne4 Rf1 55.Ke2 Rf4 56.Rac5 Kb3 57.Nd2 Kb2 58.Rc4 Rg4 59.Rb5 Ka3 60.Rcb4 Rg2 61.Kd3 Rg3 62.Kc2 Rg2 63.Rb1 Ka4 64.Rb8 Rd2 65.Kd2 Ka3 66.Ra8# 1–0. NN – ChessMaster2000, 1994.

5.e3 Qd6 6.a3 e5 7.Nc3 (7.h4 h5 8.g5 Nd7=+) 7...c6 8.h4 (8.d4 ed4 9.Qd4 Bc2=+) 8...h6 (8...h5 9.g5=+) 9.h5 Bh7 10.Bg2 (10.d4 e4=+) 10...Nf6–/+ 11.Nh3 Nbd7 12.g5 (12.d3 Be7=+) 12...hg5–/+ 13.Ng5 Bf5 14.e4 Bg4 15.Bf3 Bf3 16.Qf3 a5 17.ed5 cd5 18.Nb5 Qc6 19.Nc3 (better is 19.Qe2!? e4 20.f3 ab4 21.fe4 Ne4 22.c4 bc3 23.Nc3–/+) 19...ab4–+ 20.ab4 Ra1 21.Ba1 Bb4 22.Rh4 (22.Bb2 b5–+) 22...Be7 23.Ra4 Nb6 24.Ra2 Rh5 25.Qg2 Nfd7 26.Nf3 d4 27.Ne2 Rf5 28.Neg1 Qc4 29.Rb2 e4 30.Nh2 d3 31.c3 Ra5 32.Rb1 Qb3! 33.Rd1 Qd1! 34.Kd1 Ra1# 0–1. tschulz – Kryst, Pfingstturnier, 2004.

5.e3 f6 6.d4 (6.Bb5 c6 7.Be2 e5=+) 6...e6 7.a3 Bd6 8.c4 c6 (8...a5 9.c5 Be7 10.b5=) 9.Nd2 (9.Nf3 Ne7=) 9...Nh6 10.h4 (10.c5 Bc7=) 10...Nd7 11.Ngf3 (11.h5 Be4 12.f3+– (12.Ne4?! de4 13.c5 Bc7=)) 11...Ng4–/+ 12.h5 Bf7 (12...Bf5 13.Nh4 Nh6 14.Nf5 Nf5 15.Bd3=+) 13.Ng5 fg5 14.Qg4 h6 (14...a5 15.Rg1–/+) 15.Bd3 Nf6 16.Qg2 (16.Qf3 g4 17.Qe2 Bh5 18.Rh5 Nh5 19.Bg6 Kd7 20.Bh5 g3=) 16...Qe7 (16...Nh5 17.c5 Bc7 18.b5–/+) 17.Rc1 (17.c5 Bc7=+) 17...Rf8 (17...Bh5 18.Rh5 Nh5 19.Bg6 Kd8 20.Bh5+=) 18.c5 Bc7 19.Nf3 0–0–0 (19...Bh5?! 20.Rh5 Nh5 21.Bg6 Kd8 22.Bh5=) 20.Ne5 (20.b5 Bh5 21.bc6 Bf3 22.cb7 Kb7 23.Qf3 Ne4 24.Be4 Rf3 25.Bf3 Rf8–/+) 20...Bh5=+ 21.b5 cb5 22.c6 Ba5 23.Kf1 (23.Bc3 Qa3 24.cb7 Kb7 25.0–0 Bc3 26.Bb5–+) 23...Be8 (23...Bd2 24.Rc2 Ba5=+) 24.Bb5=+ Kb8 (24...Ne4!? 25.Rc2 Bd2=+) 25.Ke2= Bc7 26.Bd3 (26.Ke1 Ne4 27.f3 Be5 28.de5 bc6–/+) 26...Ne4 (26...Bh5 27.Ke1=) 27.f3=+ Be5 28.de5 Bc6 (better is 28...Nc5 29.cb7 Qb7=+) 29.fe4+= (29...de4 30.Be4+=). Borrmann,Fritz (1950) – Hasek,Frantisek (1765), TT–15 ETC, 2005.

5.e3 Nf6 A) 6.a3 A1) 6...a5 7.g5 Ne4 8.d3 Nd6 9.Nf3=; A2) 6...Nbd7 7.d3 e5 8.f4 ef4 9.ef4=; A3) 6...h6 7.f4 e6 8.Nf3 a5 9.b5=; A4) 6...h5 7.g5 Nh7 8.f4 e6 9.Nf3+=; A5) 6...e6 7.g5 Ne4 8.d3 Nd6 9.Nf3=; B) 6.f4 B1) 6...Ne4 7.Nf3 e6 8.Rg1 a5 9.b5=; B2) 6...Be4 7.Nf3 e6 8.a3 a5 9.b5=; B3) 6...e6 7.a3 Ne4 8.Nf3 Be7 9.g5=+; C) 6.g5 C1) 6...Ne4 7.h4 e6 8.d3 Nd6 9.h5=+; C2) 6...Ng8 7.Nf3 e6 8.a3 h6 9.gh6=; C3) 6...Nfd7 7.Nf3 e6 8.Rg1 h6 9.gh6=+; D) 6.Nf3 D1) 6...Nbd7 7.g5 Nh5 8.Rg1 Nb6 9.Ne5+=; D2) 6...Nfd7 7.h4 e6 8.h5 Be4 9.a3=; D3) 6...Qd6 7.a3 Nbd7 8.g5 Ng8 9.c4=; D4) 6...a5 7.g5 Nfd7 8.b5 Bh5 9.Be2=; D5) 6...e6 7.g5 Nh5 8.a3 a5 9.ba5=.

5.Bg2 a6 6.c4 e6 7.cd5 ed5 8.Nf3 Nc6 9.a3 Nf6 10.Qb3 Be7 11.d3 h6 12.0–0 0–0 13.Nc3 Qd6 14.Na4 Nd7 15.Nd2 Bg5 16.e3 Ne7 17.f4 Bf6 18.f5 Bh7 19.Rac1 Bb2 20.Qb2 a5 21.Nc5 ab4 22.Nb7 Qg3 23.Qb4 Qe3 24.Kh1 c5 (24...Nc8!?=) 25.Nc5+/– Nc5 26.Rfe1 Qd3 Exerts pressure on the isolated pawn 27.Rc5 (worse is 27.Qc5 Nf5 (worse is 27...Qd2 28.Qe7 Qa5 29.Qe5+=) 28.gf5 Qd2 29.Bd5 Rad8+=) 27...Rab8 28.Qc3 Qc3 29.Rc3 Rfe8 30.a4 Kf8 31.a5 h5 32.a6 Ra8 33.Bf1 Nc8 (33...d4 34.Rc7 hg4 35.hg4+–) 34.Re8+– Ke8 35.Rc5 Nd6 36.Rd5 Ke7 37.f6! gf6 (37...Kf6 38.Rh5 Discovered attack (38.Rd6 Deflection; 38.gh5 Zwischenzug); 37...gf6 38.Rh5 Discovered attack (38.gh5 Zwischenzug)) 38.gh5 Nf5 39.Ra5 Ng3 (39...Ne3 40.Be2 Nf5 41.Kg2+–) 40.Kg2 Nf1 41.Nf1 (41.Kf1?! Bd3 42.Kf2 Ra6 43.Ra6 Ba6=) 41...Ra7 (41...Kd6 42.Ne3 Kc6 43.Ra3+–) 42.h6 Kf8 43.Ng3 Bg6 44.Kf3 Kg8 45.Ne4 Kh7 46.Nf6 Kh6 47.Ke3 Kg7 48.Ne8 Kf8 49.Nd6 f6 (49...Kg7 50.Kd4+–) 50.h4 Bc2 (50...Kg7 51.Kd4+–) 51.Ra3 Bg6 52.Nb5 Re7 53.Kf4 Re4 54.Kg3 Rb4 (54...Re7 55.a7 Be4 56.a8Q Ba8 57.Ra8 Kg7 58.Ra7 Ra7 59.Na7+–) 55.Nd6 (55.Nd6 Rb8 56.h5 Bh5 57.a7+–) 1–0. hanzelpeter (2265) – marekt (2205), gameknot.com, 2015.

5.Bg2 Qd6 6.a3 a5 7.c4 ab4 8.Bd5 c6 9.Bg2 e5 10.Nf3 Nd7 (worse is 10...ba3 11.Be5 Qe6 12.Ra3 Ra3 13.Na3+/–) 11.0–0 e4 12.Nh4 h5 13.c5 (13.g5 Bh7 (13...ba3 14.Ba3 Qf4 15.Ng6 fg6 16.Bf8 Ra1 17.Bg7 Rb1 18.Qb1+–) 14.Qb3 Qf4=) 13...Nc5 14.ab4 Na6 15.g5 Bh7 (worse is 15...Qb4 16.Ng6 fg6 17.Qc2+/–) 16.b5 cb5 17.Qb3 b4 18.Qa4 Qc6 19.g6 fg6 (19...fg6 20.Qc6 Double attack (20.Be4 Decoy; 20.Be4 Interception); 19...Bg6 20.Qc6 Double attack) 20.Be4 Qa4 21.Ra4 Rc8 22.Ng6 Rc5 23.f4 Nf6 24.Bd3 Rg8 25.f5 Bd6 26.Bd4 Bg6 27.fg6 Rg5 28.Kh1 Rf8 29.Rg1 (29.Ba6!? ba6 30.Ra6+=) 29...Rd5= 30.Be3 (worse is 30.Ba6 ba6 31.Bf6 Rf6 (worse is 31...gf6 32.Ra6 Ke7 33.g7=) 32.Ra6 Rdf5–/+) 30...Ke7 31.Rf1 Re5 32.Bd4 Rg5 33.Rf3 Rc8 34.Rf1 Rc7 35.Be3 (35.Bf5 Rc4 36.e3 h4 37.Bf6 gf6+=) 35...Rd5= 36.Ba6 ba6 37.Ra6 Re5 38.Bf4 Re6 39.Bd6 Rd6 40.Ra4 Rb6 41.Kg2 Ke6 42.Kf3 Kf5 43.Rg1 Ke6 44.e4 Rc4 45.d3 Rd4 46.Ke2 Rbd6 47.Rg3 Nd7 48.Ra8 Nc5 49.Re8 Kd7 50.Rg8 Nd3 51.Rg7 Ke6 52.Rc7 Re4 53.Kf3 Kd5 54.g7 Rf6 55.Kg2 Re2 56.Kg1 Re1 57.Kh2 Re2 58.Kg1 Re1 ½–½. Hlavacek,Ladislav (1830) – Ottenweller,Wolfgang (1990), IECG TE.2004.S.01701, 2006.

5.Bg2 Qd7 6.Nc3 e6 7.e4 d4 8.Nce2 e5 9.a3 Qc6 10.d3 h5 11.Nf3 Nd7 12.Rc1 hg4 13.hg4 Rh1 14.Bh1 Qe6 15.c3 Qg4 16.Qd2 Qh3 17.Ng3 dc3 18.Bc3 Bh5 19.Ke2 Be7 20.Nh5 Qh5 21.Bg2 Qg4 22.Rg1 g6 23.Bf1 Qh5 24.Qc1 f6 25.Bg2 g5 26.Rh1 Qg6 27.Ne1 0–0–0 28.Kf1 Nb6 29.f3 Nh6 30.Bd2 Rh8 31.Bh3 Kb8 32.Bg4 Nf7 33.Rh8 Nh8 34.Ng2 Qh6 35.Kf2 Ng6 36.Qg1 Nf4 37.Nf4 ef4 38.Qg2 c5 39.Qh3 Qh3 40.Bh3 cb4 41.Bb4 Bb4 42.ab4 Kc7 43.Ke2 Nd7 44.Kd2 Ne5 45.Ke2 Kc6 46.d4 Kb5 0–1. valpa – steve, playchess.de, 2002.

5.Bg2 h6 6.Nf3 Nf6 7.a3 Nc6 8.d3 e5 (8...e6 9.Nbd2=) 9.Ne5+= Bd6? (better is 9...Ne5!? 10.Be5 Bd6+=) 10.Ng6+– fg6 11.Nd2 (11.c4 dc4 12.dc4 Qe7+–) 11...0–0 (11...Be5 12.Be5 Ne5 13.d4+/–) 12.Nf3 (12.Bf6 gf6 13.Bd5 Kg7 14.Bc6 bc6+–) 12...h5 (12...Qe8 13.Rb1+/–) 13.g5 Nh7 14.0–0 (better is 14.c4!?+–) 14...Ng5+= 15.Ng5 Qg5 16.e3 Ne5? 17.f4+– Qh4 18.Be5 Be5 19.fe5 Rf5 20.Rf5 gf5 21.Bd5 Kh7 22.Qf3 Rf8 23.Rf1 g6 24.e6 a5 25.ba5 Qe7 26.e4 Qa3 27.ef5 Qa5 28.fg6 (28.fg6 Kg6 29.Be4 Rf5 30.Bf5 Kg7 31.Be4 Qa7 32.Kg2 Qg1 33.Kg1 c6 34.Qf8) 1–0. Fournier,Frederic (1715) – ajtiepo, Active, 2006.

5.h4 Qd6 6.a3 =+.

5.h4 f6 6.h5 Bf7 7.Bg2 e5 8.e3 (8.a3!?=+) 8...Bb4–/+ 9.a3 Ba5 10.Ne2 Nc6 11.0–0 Qd7 12.f3 d4 13.Kh2 0–0–0 14.Ng3? (better is 14.ed4 ed4 15.f4–+) 14...de3 15.Nc3 (15.d3 Bb6–+) 15...Qd2 (15...ed2 16.f4–+) 16.Qd2 (16.Nce4 Qd1 17.Rad1 Nd4 18.Bd4 ed4–+ (< 18...Rd4 19.c3 Rd1 20.Rd1–+)) 16...Rd2 17.Rfe1 (17.Rfc1–+) 17...Rc2 18.Re2 Rb2! 19.Rb2 (19.Re3 Nge7–+) 19...Bc3 20.Rbb1 Nd4 (21.Ne4 Ba1 22.Ra1 Bc4–+) 0–1. kolokwium – pierre (1980), internet, 2006.

5.h4 h6 6.f3 (6.h5!? Bh7 7.Nf3=) 6...Qd6–/+ 7.Rh3 (7.e3!?–/+) 7...Qb4–+ 8.Bc3 Qa4 9.d3 (9.Be5 Bc2 10.Qc1 Nd7 11.Bc7 Qc6–+) 9...d4 10.Bd2 Nc6 11.c3 Qd1 12.Kd1 e5 13.e3 de3 14.Be3 Nf6 15.a4 Nd5 16.Bd2 Bc5 17.Rg3 Bf2 18.Rg2 Bh4 19.Be2 0–0–0 20.Na3 Na5 21.Kc2 Bg5 22.c4 Bd2 23.cd5 Be3 24.Nh3 Rd5 25.Rb1 Rd4 26.Kc3 Rhd8 27.Rd1 R8d6 28.Nc2 Rc6 29.Kb2 Rb6 30.Ka2 Ra4 31.Na3 Rb3 (32.d4 Raa3#) 0–1. dennism (2100) – pierred (2595), net–chess.com, 2008.

5.d3 e5

6.a3 a5 7.b5 f6 =+.

6.a3 a5 7.Be5 Nc6 8.Nc3?? Ne5–+ 9.d4 Nc4 10.e3 ab4 11.Bc4 dc4 12.ab4 Bb4 13.Nge2 Ra1 14.Qa1 Bc2 15.0–0 h5 16.d5 hg4 17.hg4 Qh4 18.Qa8 Kd7 (19.Qa4 Ba4 20.Kg2 Qh3 21.Kg1 Qh2#) 0–1. tata (2000) – pierred (2595), net–chess.com, 2008.

6.Be5 Nc6 7.f4 Ne5–+ 8.fe5 Qh4 9.Kd2 Qg5 10.e3 Qe5 11.Nf3?? Qa1–+ 12.c3 Qa2 13.Ke1 Bd6 14.Nbd2 Rd8 15.Bg2 Bd3 16.Bf1 Bg3# 0–1. ketanmeh – pierre (2210), internet, 2007.

5.e3 a5

6.a3 A) 6...Nf6 7.g5 Ne4 8.d3 Nd6 9.Nf3=; B) 6...e6 7.ba5 h5 8.Bg2 Ra5 9.d3=; C) 6...Nd7 7.Nf3 ab4 8.ab4 Ra1 9.Ba1=+; D) 6...f6 7.b5 e5 8.d4 Nd7 9.c4=; E) 6...ab4 7.ab4 Ra1 8.Ba1 f6 9.f4=+.

6.ba5 A) 6...e6 7.Nf3 Ra5 8.Ne5 Nf6 9.h4=; B) 6...Ra5 7.h4 h5 8.g5 e6 9.Bc3=; C) 6...f6 7.Ba3 Ra5 8.f4 Be4 9.Rh2=; D) 6...Nc6 7.Nf3 e6 8.Bb5 Ra5 9.a4=; E) 6...Nd7 7.Bg2 e6 8.h4 h5 9.g5=.

6.b5= A) 6...Nd7 7.Nf3 e6 8.d3 Ngf6 9.Nh4=; B) 6...Nf6 7.Nf3 e6 8.Ne5 Bd6 9.Ng6=; C) 6...h5 7.g5 e6 8.Nf3 a4 9.Rg1=; D) 6...a4 7.Nf3 f6 8.Ba3 e5 9.Bf8=; E) 6...e6 7.h4 f6 8.h5 Bf7 9.f4=.

6.h4 h5 7.ba5 hg4 8.Qg4 Ra5 9.Qd1 =+.

5.e3 Nd7

6.Nc3 A) 6...c6 7.b5 e5 8.Nf3 Bd6 9.Rb1=+; B) 6...e6 7.a3 h5 8.Bg2 hg4 9.hg4=+; C) 6...a5 7.b5 e6 8.Nge2 Bd6 9.Nd5=; D) 6...h6 7.a3 Ngf6 8.f4 e6 9.Nf3=; E) 6...e5 7.Be2 Ngf6 8.a3 c6 9.Nf3=+.

6.Nf3 A) 6...f6 7.Nc3 e5 8.Nd5 c6 9.Nc3=; B) 6...a5 7.b5 e6 8.d3 Ngf6 9.Nh4=; C) 6...a6 7.a3 e6 8.d3 f6 9.Bg2=; D) 6...e6 7.h4 h5 8.g5 Rh7 9.a3=; E) 6...c6 7.b5 Ngf6 8.Nc3 e5 9.Nh4=.

6.f4 A) 6...Be4 7.Nf3 h5 8.g5 e5 9.fe5=; B) 6...f6 7.f5 Bf7 8.Ne2 e5 9.fe6=; C) 6...h6 7.f5 Bh7 8.Nf3 e6 9.fe6=; D) 6...e6 7.Nf3 Ngf6 8.a3 a5 9.b5=.

6.Bg2 c6 7.Nf3 =+.

6.Bg2 e6 7.Ne2 h5 8.Nf4= Bb4 9.gh5 Be4 10.Be4= de4 11.Bg7 Rh7 12.Rg1 Ngf6 13.h6 c6 14.Nh5+= Qe7 15.Nf6+/– Nf6 16.a3 Bd6 17.Nc3 0–0–0 18.Bf6 Qf6 19.Ne4 Qh6 20.Nd6 Rd6 21.Rg3 f5 22.Qf3 Rd8 23.Rb1 Qf6 24.c3 Qe7 25.Rb4 a5 26.Ra4 Qc5 27.Qd1 Rhd7 28.Qb3 Rd2 29.Rd4 R2d4 30.cd4 Qe7 31.Rg6 Re8 32.Qc3 Qh7 33.Rg5 Qh6 34.Rg1 Qh3 35.Qa5 Qh8 36.Qa8 Kc7= 37.Qa5 Kc8+= 38.f4 Rd8 39.Qc5 Qh4 ½–½. Armstrong,Alan – Petrie,Doug, Eclipse, 2000.

6.h4 e5 7.h5 Be4 8.f3 +–.

6.h4 h5 7.c4 hg4 8.cd5 Be4 9.Rh2 –/+.

6.h4 h5 7.Bg2 hg4 8.Bd5 c6 9.Bg2 =+.

6.h4 h5 7.g5 e5 8.Nf3 e4 9.Ne5 Ne5= 10.Be5 Bb4 11.c4 Kf8 12.Qb3= a5 13.a3 dc4 14.Qb2 f6 15.ab4 fe5 16.Ra5 b5 17.Rb5+/– (17...Qd6 18.Bc4+/– (18.Qe5? Qe5 19.Re5 Ra1–+); 17.Qe5?! Ra5 18.ba5 c6=) 1–0. Luzuriaga,Norberto Horacio – Seidler,David, corr or01–002 E–mail, 2001.

5.e3 e6

6.a3 a5=+ A) 7.Nf3 ab4 8.ab4 Ra1 9.Ba1 Nf6=+; B) 7.h4 h5 8.g5 ab4 9.ab4 Ra1=+; C) 7.ba5 Nd7 8.h4 h5 9.g5 Ra5=+; D) 7.Be2 ab4 8.ab4 Ra1 9.Ba1 Be4=+; E) 7.b5 Nf6 8.h4 h6 9.d3 Bd6=+.

6.a3 Ne7 7.d3 a5 8.Nf3 h5 9.Bg2 =.

6.a3 f6 A) 7.f4 c5 8.bc5 Bc5 9.Nf3 Nc6=; B) 7.Nc3 a5 8.b5 Bd6 9.Nge2 Ne7=; C) 7.c4 Nd7 8.Nf3 a5 9.b5 Ne7=; D) 7.h4 h5 8.gh5 Bh5 9.Be2 Bg6=; E) 7.Nf3 Nd7 8.Nc3 a5 9.ba5 Ra5=.

6.a3 Nf6 A) 7.g5 Nfd7 8.Nf3 Bh5 9.Rg1 e5=+; B) 7.f4 a5 8.b5 Ne4 9.Nf3 Ng3=+; C) 7.d3 Nbd7 8.Nf3 c5 9.bc5 Bc5=+; D4) 7.Nc3 a5 8.ba5 Ra5 9.Nf3 Nbd7=+; E) 7.Nf3 Bd6 8.g5 Nh5 9.Nc3 a6=+.

6.a3 h5 7.Be2 hg4 8.Bg4 Nf6 9.Bf6 Qf6 10.Qf3?? (better is 10.d4–/+) 10...Qa1–+ 11.Qd1 Qb2 12.d3 Nc6 13.Ne2 Ne5 14.f4 (14.Rg1–+) 14...Ng4 15.Nd4 Ne3 16.Qf3 Qd4 17.Kd2 Bd6 (better is 17...Nc4 18.Ke1 Bh5 19.Qf2–+) 18.Re1 Nc4 19.Kc1 Bf4 (19...Qb2 20.Kd1 Qb1 21.Ke2 Qc2 22.Kf1 Nd2 23.Kf2 Nf3 24.Re2 Qd1 25.Re1 Qe1 26.Kf3 Rh3 27.Kg2 Qg3 28.Kf1 Bd3) 20.Kd1 Bh5 0–1. Bandy 1 – michaelbuss, ChessWorld.net, 2015.

6.Be2 A) 6...Nd7 7.h4 h5 8.g5 Ne7 9.a3=+; B) 6...Be4 7.Bf3 Nd7 8.a3 Ngf6 9.g5=; C) 6...h5 7.gh5 Be4 8.Nf3 Rh5 9.a3=+; D) 6...h6 7.a3 Nd7 8.h4 Ngf6 9.Nc3=+; E) 6...f6 7.a3 c5 8.bc5 Bc5 9.Nf3=+.

6.Ne2 a5 A) 7.ba5 Ra5 8.Nf4 Nf6 9.Ng6 hg6=; B) 7.a3 ab4 8.ab4 Ra1 9.Ba1 Be4=+; C) 7.b5 f6 8.Bg2 Bd6 9.c4 c6=.

6.Ne2 Qd6 A) 7.Bc3 Ne7 (7...Nc6 8.b5 Ne5 9.Bg2 Be4=+; 7...e5 8.f4 Be7 9.h4 Qd8=+; 7...Na6 8.a3 Be4 9.Rg1 0–0–0=; 7...Be4 8.Rg1 Nc6 9.d3 Bg6=; 7...Nf6 8.Nf4 Nc6 9.Bf6 gf6=+) 8.Nf4 e5 9.Ng6 Ng6=+; B) 7.c3 e5 (7...Be7 8.d3 e5 9.f4 Bh4=+; 7...a5 8.b5 Be4 9.Rg1 Qb6=; 7...Be4 8.Rg1 Bd3 9.Nd4 Bf1=+; 7...Nd7 8.Nf4 0–0–0 9.d3 Qc6=+; 7...Ne7 8.Nf4 e5 9.Ng6 Ng6=+) 8.d3 h5 9.Bg2 Nd7=+; C) 7.b5 Qb4 (7...Be4 8.Rg1 Qb4 9.Bd4 Qb5=+; 7...Nd7 8.Nf4 Ngf6 9.Ng6 hg6=+; 7...Nf6 8.Nf4 Nbd7 9.Ng6 hg6=+; 7...Ne7 8.Nf4 Nd7 9.Ng6 Ng6=+; 7...a6 8.Nf4 e5 9.Ng6 hg6=) 8.Bd4 e5 9.a3 Qd6=+; D) 7.a3 Ne7 (7...e5 8.f4 Be7 9.h4 Qd8=; 7...Be4 8.Rg1 Nd7 9.Nbc3 Bf3=; 7...Nc6 8.Nbc3 0–0–0 9.Nf4 Nf6=; 7...Nd7 8.Nf4 Ne7 9.Nc3 e5=; 7...a5 8.b5 e5 9.f4 Be7=) 8.Nf4 Nd7 9.Ng6 Ng6=.

6.Ne2 e5 A) 7.Bg2 Nd7 8.Bd5 c6 9.Bb3 Bb4=+; B) 7.a3 Nd7 8.Bg2 c6 9.d3 Qb6=+; C) 7.Rg1 Bd6 8.Nf4 Nf6 9.Ng6 hg6=+; D) 7.Ng3 Bd6 8.h4 h6 9.h5 Bh7=+; E) 7.Be5 Nc6 8.Bc3 Nb4 9.d3 Nf6=.

6.Ne2 Qe7 A) 7.Bc3 Nd7 (7...e5 8.Bg2 c6 9.d3 Nd7=+; 7...Nf6 8.Nf4 Nbd7 9.d3 0–0–0=+; 7...Be4 8.Rg1 Nd7 9.d3 Bg6=; 7...Nc6 8.b5 Nb8 9.Nf4 Nf6=; 7...a5 8.ba5 e5 9.Bg2 Nf6=) 8.d3 Ngf6 9.Nd2 e5=+; B) 7.c3 e5 (7...a5 8.b5 Be4 9.Rg1 Nd7=; 7...Nd7 8.Nf4 Be4 9.f3 Bb1=+; 7...Be4 8.Rg1 Bd3 9.Bg2 a5=; 7...Qh4 8.Nf4 Nf6 9.Ng2 Qh6=; 7...Nh6 8.Nf4 Be4 9.Rg1 e5=) 8.Bg2 c6 9.b5 Nf6=+; C) 7.a3 a5 (7...e5 8.d4 Nd7 9.Nbc3 c6=; 7...Nd7 8.Nf4 Be4 9.f3 Qh4=; 7...Nf6 8.Nf4 Nbd7 9.Nc3 0–0–0=; 7...Be4 8.Rg1 Nd7 9.d3 Bg6=; 7...c5 8.bc5 Qc5 9.Nbc3 Nc6=) 8.Nbc3 ab4 9.ab4 Ra1=.

6.Nf3 a5 7.b5 Nd7 8.d3 Ngf6 9.Nh4 =.

6.Nf3 Nd7 7.a3 Ngf6=+ 8.d3 (8.Nc3 Bd6=+) 8...h6 (8...Bd6 9.g5 Nh5 10.Nc3=+) 9.Nbd2 (9.Ne5 Ne5 10.Be5 Bd6 11.Bd6 Qd6=+) 9...Bd6=+ 10.c4 c6 11.Rg1 (11.c5 Bc7=) 11...a5 (11...e5 12.cd5 cd5 13.d4=+) 12.c5= Bc7 13.h4 (13.Nh4 Bh7=) 13...e5 (13...ab4 14.h5 ba3 15.Bf6 Qf6 16.hg6 Qg6 17.d4+=) 14.h5 Bh7 15.Be2 (15.d4 ed4 16.Bd4 ab4 17.ab4 Ra1 18.Qa1 Bc2=) 15...Qe7 (15...ab4 16.ab4 Qc8 17.Bc3=) 16.Nb3 d4 (16...ab4 17.ab4 Ra6 18.Ra6 ba6 19.Qa1=) 17.e4 (17.ed4 ed4 18.Nbd4 ab4 19.ab4 Ra1 20.Qa1 0–0+=) 17...g6 (17...ab4!? 18.ab4 Ra1 19.Qa1 Qd8=) 18.Nfd2 (18.Bc1 ab4 19.hg6 Bg6 20.ab4 Ra1 21.Na1 h5=) 18...g5 19.Nc4 0–0 (19...ab4 20.ab4 0–0 21.f4=) 20.Nca5 Ba5 21.Na5 Nc5 22.Nc6 bc6 23.bc5 Rfb8 24.Qd2 Qc5=+ 25.Bc1 Ne4 26.de4+/– Be4 27.Rg3 Ra7 28.a4 Rab7 29.Rga3 Rb1 30.Bd1 Qd5 31.a5 Ra1 32.Ra1 Bf3 33.Bf3 Qf3+/– 34.a6 Qh1 35.Ke2 Qe4 36.Kd1 Qg4 37.Qe2 Qe6 38.Ke1 Ra8 39.Ra5 e4 40.Qb2 c5 41.Rc5+= d3 42.Kd2?? Qg4–/+ 43.Kc3 Qf3 44.Kb4 d2 45.Qd2 Qf6 46.Qe2 Rb8 47.Ka4 Rb6 48.a7 Qd4=+ 49.Qc4 Qd7 50.Rb5 Qa7 51.Kb3 Qa5 52.Rb6+/– Qb6 ½–½. Borrmann,Fritz – Baumann,Heinz, TT–17.34 ECT, 2005.

6.Nf3 Nd7 7.Bb5 A) 7...Bb4? 8.Bg7 c6 9.Be2+–; B) 7...c6 8.Be2 Ngf6=+.

6.Nf3 Nd7 A) 7.Nc3 h5 (7...h6 8.a3 Ngf6 9.Nh4 Bh7=+; 7...Ngf6 8.a3 a5 9.b5 Bd6=+; 7...a5 8.b5 a4 9.a3 Ngf6=; 7...e5 8.h4 h5 9.g5 c6=+; 7...Nh6 8.Rb1 Nb6 9.a3 Be7=) 8.gh5 Bh5 9.a3 Ngf6=+; B) 7.Rg1 a5 (7...f6 8.a3 a5 9.b5 e5=; 7...Qe7 8.a3 e5 9.Nc3 Nb6=; 7...h6 8.a3 Ngf6 9.Nc3 a5=; 7...a6 8.a3 Rc8 9.h4 c5=; 7...Ngf6 8.a3 h6 9.h4 a5=+) 8.ba5 Ra5 9.Be2 Ne7=+; C) 7.a3 a5 (7...Ngf6 8.d3 c5 9.bc5 Bc5=; 7...Ne7 8.Bg2 h5 9.g5 Nf5=; 7...h6 8.c4 dc4 9.Bc4 Ngf6=+; 7...Qe7 8.c4 dc4 9.Bc4 0–0–0=; 7...a6 8.d3 Ngf6 9.g5 Nh5=) 8.ba5 Ra5 9.Ra2 Ngf6=+; D) 7.Be2 Ngf6 (7...h6 8.a3 Ngf6 9.d3 c5=+; 7...f6 8.a3 a5 9.b5 Bd6=; 7...h5 8.g5 h4 9.Rg1 Be4=; 7...a5 8.ba5 Ra5 9.h4 Ngf6=; 7...Nh6 8.a3 a5 9.b5 f6=) 8.g5 Ne4 9.h4 h6=+; E) 7.h4 Ngf6 (7...f6 8.a3 a5 9.b5 Bd6=; 7...Qe7 8.a3 h5 9.g5 0–0–0=; 7...a5 8.h5 Be4 9.b5 Ngf6=; 7...h5 8.g5 Rh7 9.a3 Bd6=; 7...Be4 8.a3 Ngf6 9.d3 Bf3=) 8.g5 Ne4 9.d3 Bh5=.

6.Nf3 Be4 7.a3 Nc6 (7...a5 8.b5 Nd7 9.d3 Bf3=; 7...Nd7 8.d3 Bg6 9.h4 f6=; 7...Nf6 8.d3 Bg6 9.Ne5 c5=; 7...Ne7 8.d3 Bf3 9.Qf3 Ng6=; 7...h5 8.d3 Bf3 9.Qf3 a5=) 8.d3 Bf3 9.Qf3 Nge7 =.

6.Nf3 Qe7 7.a3 a5 8.ba5 Ra5 9.h4 =.

6.Nf3 f6 A) 7.Nd4 Qd7 (7...Kf7 8.b5 c5 9.Nf3 Bd6=; 7...Qc8 8.a3 e5 9.Nf3 Qe6=; 7...Bf7 8.a3 e5 9.Nb3 Bd6=+) 8.a3 e5 9.Nf3 a5=+; B) 7.Bc3 Nh6 (7...Nd7 8.d3 Bd6 9.Bg2 c5=+; 7...Bd6 8.Rg1 Qe7 9.a3 Nd7=+; 7...a6; 7...Qd6; 7...e5) 8.a3 e5 9.Bb5 c6=+; C) 7.b5 Nd7 (7...e5 8.Nc3 a6 9.h4 ab5=+; 7...Bd6 8.c4 Ne7 9.d4 dc4=; 7...Bb4 8.Nc3 Ne7 9.h4 0–0=; 7...Bc5 8.c4 Nd7 9.d4 Bb4=; 7...Be7 8.c4 a6 9.cd5 ed5=+) 8.c4 Nb6 9.cd5 Nd5=+; D) 7.c3 Nd7 (7...a5 8.b5 a4 9.c4 e5=; 7...Bd6 8.d3 a5 9.b5 Ne7=+; 7...a6 8.h4 Bd6 9.d3 e5=+; 7...e5 8.d3 Nh6 9.Bg2 Bd6=+; 7...Ne7 8.h4 Nd7 9.h5 Be4=) 8.Nd4 Bf7 9.Nb3 e5=+; E) 7.a3 Nd7 (7...Bd6 8.c4 c6 9.Nc3 Nh6=; 7...a6 8.Nc3 e5 9.d3 Bf7=; 7...a5 8.b5 Bd6 9.c4 Ne7=; 7...Nh6 8.Rg1 Nd7 9.g5 Nf7=; 7...Qd7 8.Nc3 e5 9.Nh4 Bf7=) 8.Nc3 a5 9.Nd4 Bf7=.

6.Nf3 h5 7.Rg1 (7.Ne5 Be4 (7...Bh7) 8.Rg1 Bb4 (8...hg4= 9.Ng4 Nd7=+) 9.gh5 Bf8=+; 7.g5 Nd7 (7...Ne7 8.a3 a5 9.Ne5 Nd7=; 7...Be4 8.Rg1 h4 9.a3 Rh5=; 7...Rh7 8.a3 Bd6 9.Nc3 a5=; 7...Qd6 8.a3 Nd7 9.Nc3 Qe7=; 7...a6 8.a3 a5 9.b5 Be4=) 8.a3 Rh7 9.Nc3 a5=; 7.gh5 Bh5 8.a3 Nf6 9.c4 dc4=+) 7...Ne7 (7...hg4 8.hg4 A) 8...a6 9.a3 (9.Ne5=+ Ne7=) 9...Nd7=; B) 8...Nd7 9.a3 a5=; 7...Nc6 8.Bb5 Qd6 9.Ne5 Qb4=; 7...Nd7 8.g5 Rh7 9.a3 Bd6=; 7...Qd6 8.Ne5 Qb4 9.Bc3 Qd6=; 7...Be4 8.g5 h4 9.a3 Rh5=) 8.Ne5 (8.Nc3 hg4 9.hg4 Nd7= (9...a6=); 8.g5 Nf5 9.a3 Nd7=) 8...Nd7 (better is 8...hg4!? 9.hg4 Nd7=+) 9.Ng6+= fg6 (9...Ng6 10.gh5 Nge5 11.d4=) 10.gh5 (10.Nc3 Nf6+/–) 10...Rh5 11.Rg6! Rh4 (11...Ng6 12.Qg4 (12.Qh5)) 12.Rg4 (12.Re6?! Kf7 13.Re7 Be7 14.Qf3 Nf6=) 12...Rh6 (12...Nf5!? 13.c4 d4 (13...Bb4? 14.cd5 Qe7 15.Rh4 Qh4 16.de6+–) 14.Bd4 Nd4 15.ed4 Qf6+/–) 13.Bg7+– Bg7 14.Rg7 Nf8 (14...Nf6 15.Nc3+–) 15.c3 (better is 15.c4+–) 15...Nf5? (better is 15...e5+–) 16.Qa4 c6 17.Rb7 Qc8 (17...Rc8 18.Ra7 (18.Qa7?! Nd7+–) 18...Rh7 19.Ra6+–) 18.Ra7 Ra7 19.Qa7 Nd7 (19...Rh7 20.Qa4+–) 20.d4 1–0. vik – schachzwerg, internet, 2001.

6.Bg2 Nf6 7.b5 (7.h4 h6 8.a3 Nbd7=+) 7...c6 (7...a6 8.h4 h6 9.Nc3=+) 8.a4 (8.h4 h5 (< 8...cb5 9.h5+/–) 9.g5 Ne4=+) 8...Be7 (8...h5 9.g5 Ne4 10.h4=+) 9.f4 (9.g5 Ne4=) 9...0–0 (9...Ne4 10.g5 0–0 11.Ne2=+) 10.g5 (10.Nf3 Qe8=+) 10...Nh5 (10...Ne4 11.Ne2=+) 11.h4 (11.Ne2 a6=+) 11...cb5 (11...a6 12.bc6 Nc6 13.Ne2–/+) 12.ab5=+ Qd7 (12...Qc7 13.Nc3=+) 13.b6 (13.Ba3 Ng3 14.Rh3 Ne4=+) 13...Nc6 14.ba7 Ra7 15.Rh3? (better is 15.Ra7 Na7 16.Ne2=+) 15...Ra1–+ 16.Ba1 Nb4 17.d3 Qa4 (17...Ra8 18.Bc3 Ra2 19.Bb4 Bb4 20.Kf2–+) 18.Bc3 (18.Be5 d4! 19.e4 Nc2 20.Kf2 f6 21.gf6 gf6–+) 18...Bf5 (18...Qa2 19.Bb4 Bb4 20.Kf1–+) 19.Bf3 (19.Rf3–+) 19...Bh3 20.Nh3 Ng3 (20...Nc2?! 21.Kd2 Ng3 22.Qc2 Nf1 23.Kc1 Qc2 24.Kc2 Ne3 25.Kd2–/+) 21.Bb4 Qb4 22.Kf2 Nf5 23.h5 Qb2 24.Nd2 Rc8 25.c4 dc4 26.dc4 Rd8 27.Ke2 Bb4 (28.Bd5 ed5–+) 0–1. Suess,Stefan – Borhenne, corr, 1986.

6.h4 Bb4?? 7.Bg7 Be7 8.Bh8 +–.

6.h4 f6 7.h5 (7.a3 h5 8.gh5 Bh5 9.Be2=+; 7.b5 h5 8.gh5 Bh5 9.Be2=+; 7.Bc3 h5 8.gh5 Bh5 9.Be2=+) 7...Bf7 8.a3 e5 9.d4 =.

6.h4 h6 7.b5 (7.a3 Nf6 8.Nc3 e5 9.f4=+; 7.Rh3 Nf6 8.a3 a5 9.b5=+; 7.Bc3 Nf6 8.h5 Be4 9.Rh3=+; 7.Be2 Nf6 8.a3 Bd6 9.Nc3=+) 7...Nf6 8.Nh3 Bd6 9.Nf4 =+.

6.h4 h6 7.h5 Bh7 8.a3 Nd7 9.c4 c5 (9...Ngf6 10.cd5 Nd5 11.Nc3=+) 10.cd5 ed5 11.Bb5 (11.bc5!? Nc5 12.Bb5 Nd7 13.Nf3=) 11...Ngf6=+ 12.Qa4 cb4 (12...a6!? 13.Bd7 Qd7 14.Qd7 Nd7=+) 13.Bf6+= gf6 14.ab4 a6 (14...Rg8 15.Nc3 Rg4 16.Nd5+=) 15.Nc3 Rc8 (15...f5 16.g5 d4 17.Bd7 Qd7 18.ed4 hg5 19.Qd7 Kd7=) 16.Bd7+/– Qd7 17.Qd7 Kd7 18.Nd5 Ke6 19.Nf4 Kd7 20.b5 ab5 21.Nf3 Be4 22.Ke2 f5 23.Ne5 Ke7 24.f3 Bg7 25.fe4 Be5 26.Rab1 (26.Nd5 Kd6 27.gf5 Ba1 28.Ra1 Rhe8+=) 26...fg4= (26...fe4 27.Rb5 Kf6 28.Rf1 (28.Rb7?! Rb8 29.Rb8 Rb8+=) 28...Bf4 29.Rf4 (29.ef4?! Rc7+/–) 29...Kg7 30.Rb7+– (30.Re4?! Rc7+–)) 27.Rb5 Bf4 28.ef4 Rc4 (better is 28...Rc7=) 29.Rb7+/– Kf6 30.Ke3 Ra8? (30...Rhc8!?+/–) 31.Rb6 (31.e5 Kg7+/–) 31...Kg7 32.Rg1 (32...Rca4 33.Rg4 Kh7 34.f5+–) 1–0. Borrmann,Fritz – Merkl, corr SOK–87–11, 1988.

6.h4 h6 7.h5 Bh7 8.a3 Nf6 9.Nc3 =+.

6.a3 Nd7

7.Nc3 Ngf6 8.h4 h6 9.Nh3 a5 =+.

7.d3 Ngf6 8.g5 Nh5 9.h4 h6 =+.

7.Be2 a5 8.b5 Ngf6 9.Nf3 =.

7.Be2 a5 8.h4 h5 9.g5 ab4 =+.

7.Be2 e5 8.d4 e4 9.h4 h5 =+.

7.Be2 f6 8.h4 a5 9.b5 Bd6 =.

7.Be2 h5 8.gh5 Be4 9.Nf3 Rh5 =.

7.Be2 h6 8.Nc3 Ngf6 9.h4 Bd6 =+.

7.Be2 Nh6 8.Nf3 a5 9.b5 f6 =.

7.Ne2 e5 8.Bg2 c6 9.d3 =+.

7.Nf3 a5 8.ba5 Ra5 9.d3 =+.

7.Nf3 a5 8.b5 Ngf6 9.d3 Bd6 =.

7.Nf3 c6 8.d3 a5 9.Nbd2 f6 =.

7.Nf3 Qe7 8.c4 dc4 9.Bc4 0–0–0 =.

7.Nf3 Ne7 8.Bg2 a5 9.b5 c6 =.

7.Nf3 Ngf6 8.d3 c5 9.bc5 Bc5 =.

7.Nf3 h6 8.c4 dc4 9.Bc4 Ngf6 =+.

7.h4 f6 8.h5 Bf7 9.d4 a5 =.

7.h4 h5 8.g5 Ne7 9.Nf3 =.

7.h4 h6 8.h5 Bh7 9.d3 a5 =+.

6.Nf3 Nf6

7.a3 a5 8.ba5 A) 8...Ra5 9.d3 Bd6 10.h4 h6 11.Ne5=; B) 8...Bd6 9.g5 Nh5 10.Rg1 0–0 11.Be2+=; C) 8...Be7 9.g5 Nh5 10.Rg1 Nc6 11.Be2=; D) 8...Bc5 9.g5 Nh5 10.Be2 Nc6 11.Rg1+=; E) 8...Nbd7 9.Nh4 Be4 10.Rg1 h6 11.d3=.

7.a3 a5 8.b5 A) 8...Nbd7 9.Be2 a4 10.Rg1 h6 11.h4= –0.06; B) 8...Bc5 9.Ne5 0–0 10.h4 Bd6 11.h5+/– 1.19; C) 8...Be7 9.Ne5 0–0 10.Nc3 Nfd7 11.Ng6= 0.00; D) 8...Bd6 9.h4 Ng4 10.Bg7 Rg8 11.Bb2=+.

7.a3 a5 8.Nc3=+ ab4 9.ab4 Ra1 10.Ba1 Bb4 11.Qb1 –/+.

7.a3 a5 8.g5 A 8...Nh5 9.ba5 Bd6 10.Rg1 0–0 11.Be2+=; B) 8...Nfd7 9.b5 Bh5 10.Rg1 e5 11.Be2=; C) 8...Ng8 9.b5 h6 10.gh6 Nh6 11.Ne5=; D) 8...Ne4 9.h4 Bh5 10.d3 Nd6 11.Be2=+.

7.a3=+ Bd6 8.g5 Nh5 9.Nc3 a6 =+.

7.a3 Bd6 8.g5 Nh5 9.Rg1 0–0 10.Be2 f5 11.Nh4 +/–.

7.a3 Nbd7 8.Nc3 A) 8...h6 9.Rg1 a5 10.b5 Bd6 11.d3=; B) 8...Be7 9.Nh4 Be4 10.Ng2 0–0 11.g5=+; C) 8...a6 9.Bg2 Bd6 10.Nh4 Be4 11.Ne4=; D) 8...c6 9.Nh4 Be4 10.Ne4 Ne4 11.Nf3=; E) 8...a5 9.ba5 Ra5 10.Nh4 Be4 11.Rg1=+.

7.a3 Nbd7 8.d3 A) 8...a5 9.b5 Be7 10.Nh4 0–0 11.Ng6=; B) 8...Bd6 9.g5 Nh5 10.Be2 c5 11.h4=; C) 8...h6 9.Nbd2 a5 10.b5 Bd6 11.e4=; D) 8...c6 9.Nc3 Bd6 10.Nh4 0–0 11.Ng6=+; E) 8...c5 9.b5 Qb6 10.a4 Bd6 11.g5=+.

7.a3 Nbd7 8.Rg1 A) 8...a5 9.b5 Nb6 10.Bd4 a4 11.Be2=; B) 8...Bd6 9.g5 Nh5 10.Be2 h6 11.Nh4+=; C) 8...c5 9.g5 Ne4 10.bc5 Nec5 11.Nh4= –0.19; D) 8...Qe7 9.d3 h6 10.h4 0–0–0 11.h5=; E) 8...h6 9.Nc3 a5 10.b5 Bd6 11.d3=.

7.a3 Nbd7 8.g5 A) 8...Ne4 9.h4 Bh5 10.d3 Nd6 11.c4=; B) 8...Nh5 9.Rg1 a5 10.ba5 Ra5 11.Be2+=; C) 8...Ng8 9.Rg1 a5 10.ba5 Ra5 11.d3=+.

7.a3 h6 8.Nc3 A) 8...a5 9.b5 Bd6 10.Bg2 Nbd7 11.d3=; B) 8...Bh7 9.Rg1 Nbd7 10.h4 a5 11.b5=; C) 8...Nbd7 9.Bg2 a5 10.b5 Bd6 11.d3=.

7.a3 h6 8.c4 A) 8...dc4 9.Ne5 Bd3 10.Nd3 Qd5 11.Rg1=; B) 8...a5 9.cd5 B1) 9...Nd5 B11) 10.ba5 Ra5=+ 11.d3=+; B12) 10.b5 Nd7 11.d3=; B2) 9...ed5 10.Ne5 ab4 11.Ng6=; C) 8...Bd6 9.c5 Be7 10.Ne5 Bh7 11.h4=; D) 8...Bh7 9.d4 Bd6 10.Nbd2 c6 11.Ne5=; E) 8...Nbd7 9.Nc3 dc4 10.Bc4 a5 11.b5=.

7.a3 h6 8.Bd4 A) 8...a5 9.Ne5 ab4 10.Ng6 fg6 11.Bd3=+; B) 8...Bd6 9.Nc3 a5 10.Nb5 Be7 11.Be5=; C) 8...Nfd7 9.Ra2 h5 10.g5 Rh7 11.Rg1=; D) 8...Be4 9.Bg2 Nc6 10.Bb2 Bd6 11.d3=; E) 8...Nbd7 9.Nc3 a5 10.Rb1 ab4 11.ab4=+.

7.a3 h6 8.Ne5 Bh7=+ 9.d4 Ne4 10.Nd2 Nd2 11.Qd2= Bd6 12.0–0–0 f6 13.Nf3 Be4–/+ 14.Bg2 0–0 15.Ne1 Bg2 16.Ng2 a5 17.Nf4 Qe8 18.ba5 Nc6–+ 19.f3 Na5 20.a4 Nc4 21.Qc3 Ra4 22.Nd3 Ba3 23.Kb1 Qb5 24.Qb3 Bb2 25.Nb2 Rb4 (26.Nc4 dc4–+) 0–1. marekt – bafverfeldt, internet, 2001.

7.b5 Nbd7 8.Nc3 Bd6 9.g5 Ne4 =+.

7.Bc3 a6 8.d3 Bd6 9.Nh4 0–0 =+.

7.Bc3 Bd6 8.h4 0–0 9.h5 Be4 =+.

7.Bc3 Bd6 8.h4 h6 9.Ne5 =+.

7.g5 Nfd7 8.a3 Bh5 9.Rg1 e5 =+.

7.g5 Ne4 8.Rg1 =+.

7.g5 Ne4 8.h4 Bh5 9.d3 Nd6 =+.

7.g5 Ng8 8.a3 h6 9.gh6 Nh6 =.

7.g5 Nh5 8.a3 a5 9.ba5 Be7 =+.

6.h4 h5

7.g5 Bb4 8.Bg7 Rh7 9.Bb2 Nd7 10.Nf3 Ne7 11.Nc3 c6 12.Ne2 Qb6 13.Rb1 Qa5 14.a3 Bd6 15.Ned4 e5 16.Nb3 Qa4 17.Be2 e4 (17...Ba3? 18.Ra1+– (18.Ne5 Ne5 19.Ra1 Nc4 20.Bc4 dc4–/+)) 18.Nfd4 a6 (18...Ba3? 19.Ra1 Qb3 20.Nb3 (20.Ba3?! Qb6=) 20...Bb2 21.Ra2+–) 19.Nc1 0–0–0 20.Na2 Ba3 21.Nc3 Qb4 22.Qc1 (22.Ba3 Qa3 23.Ra1 Qc5+=) 22...Bb2+= 23.Qb2 (better is 23.Rb2!? Qd6 24.Qb1+=) 23...Qb2–/+ 24.Rb2 Rhh8 25.f3 ef3 26.Nf3 Rhe8 27.Nd4 (27.Ra2 f6–/+) 27...b5–/+ 28.0–0 Kc7 29.Ra1 Ra8 30.Rba2 Kb7 31.Kf2 f6 32.Kg3 fg5 33.hg5 Rg8 34.Kh4 c5 35.Nf3 Bf5 36.Kg3 Bg4 0–1. Fournier,Frederic (2095) – Jenneborg,Seved, Humphrey Bogart Tournament, 2006.

7.g5 Qd6 8.a3 c5 9.bc5= Qc5 10.Nc3 Nc6 11.Bb5 Bd6 12.Nf3 Nge7 13.d4 Qb6–/+ 14.Rb1 Qa5 15.Qd2 0–0 16.a4 Bb4 17.Bd3 Rac8 18.Ba1 Bd3 19.Qd3 Nd4=+ 20.Qd4 Bc3 21.Bc3 Rc3 22.Rb5 Qc7 23.Qa7 Rb8 24.Qb6–/+ Qb6 25.Rb6 Rc2 26.0–0 Nc8 27.Rb5 Nd6 28.Rb4 Ra2 29.Rfb1 Ra8 30.Rb6 Ra6 31.Ra6 ba6 32.Rb8 Kh7 33.Rb6 Ne4 34.Ra6 Nf2 35.Ne5 ½–½. Bendig,Frank – Trigance,Eric, corr ICCF TT–4–90, 1990.

7.g5 Nd7 8.Nf3 =+.

7.g5 Be4 8.f3= Bh7 9.Ne2 f6 10.gf6 Nf6 11.a3 Bd6 12.d3 Nc6 13.c4 dc4 14.dc4 Ne5 15.Nd4+= Qe7? 16.c5+– (16...Nf3 17.Qf3+–) 1–0. Rosner,Dirk – Woelfelschneider,Peter, corr SOK–91–77, 1991.

7.g5 f6 8.a3 c6 9.Nh3 a5 10.Nf4+= Bf5 11.Nh5 fg5 12.hg5 Qg5 13.Nf6 gf6 14.Rh8+/– (14...Nh6 15.b5+=). Borrmann,Fritz – Garau,Bernard, CiF, 1987.

7.g5 f6 8.a3 fg5 9.hg5 Qg5 10.Nf3 =.

7.g5 f6 8.gf6 Nf6 9.Nf3 =+.

5.e3 h5

6.Bg2 hg4 7.hg4 Rh1 8.Bh1 Qd6 9.Ne2 =+.

6.g5!?= A) 6...e6 7.Nf3 Qd6 8.a3 Nc6 9.b5=; B) 6...f6 7.Nf3 e5 8.a3 Nd7 9.Nc3=; C) 6...Rh7 7.f4 Nd7 8.Nf3 e5 9.Ne5=; D) 6...a5 7.b5 e6 8.Nf3 Be4 9.Rg1=; E) 6...Qd6 7.Nc3 e5 8.a3 Nc6 9.Bg2=.

6.g5 h4! 7.Nf3 e6 8.a3 Bh5 9.Rg1 a5! 10.b5 Nd7 11.d4!? Bd6 12.Nbd2 Ne7 13.c4 c6 14.c5 Bb8 15.bc6!? bc6 16.Qa4 Bf3 17.Nf3 Qc7! 18.Rg4 Ng6 19.Bd3 Ndf8 20.Rb1 Qd7! 21.Bc3 Bc7 22.Rb7 Kd8! 23.Qb3 Qc8 ½–½. Bendig,Frank – Borrmann,Fritz, email b4–00–01, 2000.

6.gh5 Be4 7.Nf3 e6 8.a3 Rh5 9.d3 =.

6.gh5 Bf5 7.Ne2 e5 8.Be5 Nc6 9.Bc3 +=.

6.gh5 Rh5 7.Bd3 Rh6 8.Bg6 Rg6 9.Nf3 =+.

6.gh5 Bh5=+ 7.Be2 Be2 8.Qe2 e6 9.Qb5 Nd7 10.Qb7 Rb8 11.Qa7 Rb4 12.Bc3 Rb8 13.Nf3 Qc8 14.d3 Nc5 15.Qa5 Ra8 16.Qb5= c6 17.Qb6 Nf6 18.Bf6 gf6 19.Nbd2 e5 20.h4 Rb8 21.Qa5= Rb5 22.Qa7 Rb7 23.Qa5 Rb5 24.Qa7 Rb7 25.Qa5= Rb5 ½–½. marus1 – attack, internet, 2001.

5.Nf3 e6

6.a3 a5 7.b5 a4 8.h4 h6 (8...Be4 9.e3=) 9.Ne5 (9.e3 Nd7=) 9...Be4 10.Rh3 h5 (10...f6 11.Nf3=) 11.g5=+ Nd7 12.e3 Ne7 (12...Ne5 13.Be5 Ne7 14.Nc3=) 13.Bd3 (13.Nd3 Ng6=) 13...Ne5=+ 14.Be4?? (better is 14.Be5 Ng6 15.Be4 Ne5 16.Bg2=) 14...Nc4–+ 15.Bf3 Nb2 16.Qe2 Qd7 17.Bh5 Nc4 18.Nc3 Nf5 (19.Bg4 Nh4–+) 0–1. ball – pierre (2055), internet, 2006.

6.a3 Nd7 7.d3 Ngf6 8.Nh4 c5 9.c3 Bd6 10.Bg2 0–0 11.Nd2 b5 12.Ndf3 Nb6 13.bc5 Bc5 14.Qb3 a6 15.Ng6 fg6 16.Rd1 Rc8 17.Nd4 Qe7 18.0–0 Kh8 19.Nc2 Bd6 20.e3 Nfd7 21.Ba1 Qh4 22.Qa2 h5 23.g5 (23.gh5 gh5 24.Nb4 Nc5=+) 23...Qg5–/+ 24.f4 Qg3 25.Rf3 Qh4 26.a4 ba4 27.Nd4 e5 (Black gets in control) 28.fe5 Ne5 29.Rf8 Rf8 30.Qe2 Qg3 31.Rf1 Rb8 32.Rd1 Nf7 (32...Nd3 33.Rd3 Nc4 34.Nf3 Ne3 35.Re3–+) 33.Nf3–/+ Ng5 34.Ng5 Qg5 35.Rf1 Qg3 36.e4 de4 (36...Re8 37.Rf3 Qh2 38.Kf1 de4 39.de4–+) 37.Qe4 Nd7 38.d4 Nf6 39.Qf3 Qh2 40.Kf2 Re8 41.Re1 Qg3! (42.Qg3 Bg3 43.Kg3 Re1–+) 0–1. Migliorini,Roberto – Buss,Michael, corr or02–026, 2002.

6.a3 Nf6 7.Ne5 Nc6 (7...Be4 8.f3 Nfd7 9.Bd4 Ne5 10.fe4 de4 11.Bf2–/+) 8.Ng6 hg6 9.Bg2 Qd6 10.d3 (10.g5 Ne4 11.Be4 de4=) 10...0–0–0 11.Nd2 Be7 12.c4 a6 (12...g5 13.cd5 ed5 14.Rc1=) 13.b5 ab5 14.cb5 (14.g5 Nh5 15.cb5 Nf4 16.bc6 Ng2 17.Kf1 Nf4 18.cb7 Kb7=) 14...Na7 (14...Ne5 15.g5 Nfd7 16.f4+–) 15.a4 (15.g5 Nh5 16.Qa4 Nf4+/–) 15...Kb8+= 16.Nf3 (16.g5 Nh5 17.Nf3 Nf4=) 16...Qb4 17.Qd2 Nc8 18.0–0 (18.g5 Qd2 19.Nd2 Nh5=) 18...Qb2?? (better is 18...Qd2 19.Nd2 Bb4=) 19.Qb2+– (19…Rhe8 20.g5+–) 1–0. Fritz,Manfred – Waibel,Ulrich, compuserve, 1996.

6.e3 Nf6 7.a3 Nbd7 8.d3 c5 9.bc5 Bc5 10.g5 Qb6 11.Bc3 Nh5 12.Be2 h6 13.Nh4 hg5 14.Ng6 fg6 15.d4 Be7 16.Bd3 Nf8 17.Nd2 Nf6 18.Qf3 Qc7 19.Bb2 Rc8 20.c4 Qa5 21.Rc1 Rh4 22.Qg2 Ne4 23.Be4 Re4 24.cd5 Rc1 25.Bc1 ed5 26.0–0 Rh4 27.Nf3 Rh5 28.Bd2 Qa3 29.Rc1 Qd3 30.Ne5 Qe4 31.Rc8 Bd8 32.Qe4 de4 33.Ba5 b6 34.Bb4 Ne6 35.Bd6 g4 36.hg4 Re5 37.Be5 Kd7 38.Ra8 a5 39.d5 Nc5 40.Ra7 Kc8 41.Kg2 b5 42.Ra8 Kd7 43.f3 b4 44.Ra7 Kc8 45.fe4 b3 46.Ra8 Kd7 47.Bg7 Ne4 48.Kf3 1–0. Deneuville,Christian – Buss,Michael, corr or02–026, 2003.

6.Ne5 Be4 7.f3?? Qh4# 0–1. badboy1221 – gaga, Live Game Caissa's Web, 2005.

6.Bg2 Bb4?? 7.Bg7 Nf6 8.Bh8 +–.

6.h4 Nf6 7.Ne5 Qd6 8.a3 =+.

6.h4 h6 7.c4 (7.a3 Nd7=) 7...dc4 8.Ne5 (8.Bg2 Nd7=+ (< 8...Bb4 9.Qa4 Nc6 10.Bg7+=)) 8...Be4 9.f3 Bh7 (9...Bb1 10.Qb1 b5 11.Bc3=+) 10.Nc4 Ne7 (10...b5 11.Ne3=+) 11.Nc3 (11.e4 Nbc6=) 11...Nec6=+ 12.b5 Be7 13.g5 (13.d3 Bh4 14.Kd2 Nb4=+) 13...Nd4–/+ 14.Ne4 (14.Rc1 hg5 15.hg5 Bg5–/+) 14...Be4 15.fe4 hg5 16.e3 Nb5 17.Qb3 a6 (17...Nd6 18.Nd6 Bd6 19.h5–/+) 18.a4 Nd6 19.Bg7 (19.Nd6 Qd6 20.Qb7 Qc6 21.Qc6 Nc6–/+) 19...Rh7–/+ 20.Nd6 Qd6 (20...cd6?! 21.Qb7 Nd7 22.Bd4=) 21.Qb7 Qc6 22.Qc6 ½–½. MerchantParkPro (1765) – pierre (2075), internet, 2006.

6.Bg2 Nf6

7.a3 Bd6 A) 8.Nc3 A1) 8...c6 9.d3 e5 10.Nh4 a5 11.Ng6=; A2) 8...a6 9.d3 Nc6 10.Nh4 0–0 11.0–0=; A3) 8...0–0 9.Nb5 Bf4 10.e3 a6 11.ef4=; A4) 8...Na6 9.Nb5 Be7 10.Ne5 c6 11.Ng6=; A5) 8...Nbd7 9.d3 c5 10.Qd2 0–0 11.bc5=+; B) 8.g5 Nh5 9.Nc3 a6 10.e3 a5 11.b5=+; C) 8.Ne5 C1) 8...Be5 9.Be5 0–0 10.Bb2 Re8 11.d3=; C2) 8...c6 9.Ng6 hg6 10.d3 a5 11.ba5=+; C3) 8...0–0 9.Ng6 fg6 10.c4 c6 11.d3=; C4) 8...Nbd7 9.Nd7 Qd7 10.g5 Nh5 11.Bf3=; C5) 8...Be4 9.Nf3 a5 10.b5 Nbd7 11.g5=+; D) 8.d3 D1) 8...0–0 9.Nbd2 a5 10.b5 c6 11.bc6=; D2) 8...c6 9.Nbd2 0–0 10.c4 Nbd7 11.0–0=; D3) 8...Nc6 9.Nh4 Be5 10.Be5 Ne5 11.f4=; D4) 8...a5 9.Nbd2 0–0 10.b5 c6 11.bc6=; D5) 8...c5 9.bc5 Bc5 10.0–0 0–0 11.Nbd2=+.

7.a3 Nbd7 8.d3 A) 8...Bd6 9.c4 0–0 10.c5 Be7 11.0–0=; B) 8...a5 9.b5 Bd6 10.Nbd2 0–0 11.h4=; C) 8...h6 9.c4 a5 10.b5 dc4 11.dc4=; D) 8...Nb6 9.Ne5 c5 10.Qd2 Na4 11.Ng6=; E) 8...c5 9.g5 Nh5 10.Qd2 Bd6 11.bc5=+.

7.b5 a6 8.a4 (8.ba6 Na6 9.Ne5 Bc5=+) 8...ab5 (8...Bc5 9.d3=+) 9.ab5 Ra1 10.Ba1 Bd6 11.d3 0–0 12.Nbd2 c6 (12...Nbd7 13.c4=+) 13.bc6 bc6 (13...Nc6 14.Qb1=) 14.Ne5 (14.c4 Nbd7=) 14...Qb6 (14...Nfd7 15.Ng6 fg6 16.c4=) 15.Ng6 (15.e3 Be5 16.Be5 Nbd7=) 15...fg6 16.0–0 Nbd7 (16...Qc7 17.c4=) 17.c4 Ra8 (17...Qc7 18.Qc2=) 18.d4 (18.Qc2 Be5 19.Be5 Ne5+=) 18...Qb4 (18...Ra2 19.Bc3 Bb4 20.c5=) 19.Qc2 Qa4 20.Qd3 Bb4 (20...Qa7+=) 21.c5 (21.Bc3 dc4 22.Nc4 Bc3 23.Qc3 Nd5 24.Bd5 cd5=) 21...Qa2 (21...e5 22.Nb3 e4 23.Qc2=) 22.Nb3 Rb8 (22...g5 23.Rb1=) 23.Qe3 (23.g5 Nh5 24.e3 Rf8=) 23...Nf8 (23...g5 24.h4 gh4 25.Qe6 Kh8 26.g5 Qb3 27.gf6 Nf6 28.Qc6=) 24.f4 Kh8 25.Bf3 Ra8 (25...Ba3 26.Nd2=) 26.Qd3 Ra3 (26...Ne4 27.Kg2=) 27.Rb1+= Ra7 28.Bb2 Qa6 (28...Rb7!?+=) 29.Nc1 (29.Qa6!? Ra6 30.Kf2+/–) 29...Qd3 (29...Qa5 30.e3+=) ½–½. Woschkat,Karl_Heinz – Kahl,Karl_Heinz, BdF, 1998.

7.b5 Bc5 8.d4 Bd6 9.c4 =+.

7.b5 c6 8.a4 Bd6 9.g5 Nh5 10.e3 Nd7 11.Nc3 0–0 12.0–0 Qe7 13.h4 Rab8 14.d3 e5 15.Nd2 f5 16.Ne2 e4 17.Bd4 c5 18.Bb2 Rbe8 19.d4 (19.de4!? fe4 20.c4–/+) 19...f4–/+ 20.dc5 Nc5 21.Nc3 (21.Bh3 f3 22.Nc1 Bf5 23.Bf5 Rf5 24.Nf3 ef3–+) 21...Qd7 22.Ba3 Rf7 23.Nd5 f3 (23...Na4?! 24.Bd6 Nb2 25.Qc1 Qd6 26.Qb2 Qd5 27.Qd4+=) 24.Bc5 (24.Nf3 ef3 25.Bf3–+) 24...Qg4 (24...Bc5?! 25.Nf3 ef3 26.Bf3–+; 24...fg2?! 25.Kg2 Bc5 26.Nb3–+) 25.Nf3 ef3 26.Qf3 Rf3 (26...Qf3?! 27.Bf3 Bc5 28.Bg2=) 27.Bd6 Bc2 28.Rac1 Bd3 0–1. PeterRs – marekt, ChessWorld.net, 2015.

7.a3 c5

8.b5 Qa5 9.c4 (9.a4 Nbd7 10.Bc3 Qb6 11.d3=+; 9.Bf6 gf6 10.Nc3 Bg7 11.Qb1=+) 9...dc4 10.Nc3 Nbd7 11.Nh4 =+.

8.b5 a6 9.ba6 (9.a4 ab5 10.ab5 Ra1 11.Ba1=+; 9.Ne5 ab5 10.Ng6 hg6 11.Nc3–/+) 9...Ra6 10.Ne5 Nc6 11.Nc6 =+.

8.b5 Qb6 9.a4 (9.c4 Nbd7 10.a4 Qa5 11.Na3=; 9.Bf6 gf6 10.c4 dc4 11.Qa4=) 9...a6 10.c4 dc4 11.Na3 =.

8.b5 Bd6 9.c4 (9.0–0 0–0 10.d3 a6 11.a4=+; 9.g5 Nh5 10.e3 0–0 11.Nc3=+; 9.d3 Qa5 10.Nbd2 Qb5 11.Bf6=+; 9.Be5 Be5 10.Ne5 Be4 11.Rg1–/+; 9.h4 0–0 10.h5 Be4 11.d3=+) 9...dc4 10.Nh4 Nd5 11.Ng6 =.

8.Bc3 Na6 9.bc5 (9.b5 Nc7 10.a4 d4 11.Bb2=+; 9.Bf6 Qf6 10.c3 Nc7 11.d3=+) 9...Bc5 10.e3 0–0 11.Ne5 =+.

8.c4 cb4 9.ab4 Bb4 A) 10.cd5 ed5 11.Qa4=; B) 10.Qa4 Nc6 11.Ne5=.

8.bc5 Bc5 9.e3 Nc6 10.g5 Nh5 11.Nc3 =.

8.g5 A) 8...Ne4 9.h4 cb4 10.ab4 Qb6 11.Bd4=; B) 8...Nh5 9.bc5 Bc5 10.e3 Nc6 11.Nc3=; C) 8...Nfd7 9.bc5 Nc5 10.Nc3 Nc6 11.Rb1=+.

8.b5 Nbd7

9.0–0 Bd6 10.d3=+ a6 11.g5 =+.

9.0–0 Be7 10.d3 Qc7 11.Nh4 (11.e3!?+=) 11…Ng4–/+ (11...Ng4 12.hg4 Bh4 13.Bg7 Rg8–/+) 0–1. Fournier,Frederic (1795) – Muller,Henri (1800), CO1–07 www.b2–b4.com, 2005.

9.0–0 h5 10.g5 Ne4 11.h4 Nd6 12.d3 Nb5 13.c4 dc4 14.dc4 Nd6 15.Nbd2 Qb6 16.Bc3 Qa6–/+ 17.Qb3 Rd8 18.Rfd1 Rh7 19.Ne5 Ne5 20.Be5 Rd7 21.Bd6+= Bd6 22.Ne4 Be4 23.Be4 Rh8 24.Rab1 Qa5 25.Bb7 Qc7 26.Qa4 Ke7+= 27.Bf3 Rb8 28.Rb8 Qb8 29.e3 g6 30.Kg2 Rd8 31.Rd3 Bc7= 32.Rd8 ½–½. Roos – Leyen, email 4AMM–07, 1997.

9.Ra2 Bd6 10.0–0 0–0 11.Nh4 =+.

9.a4 Bd6 10.d3 0–0 11.h4 =+.

9.Nc3 d4 10.Nb1 Qb6 11.a4 =+.

9.c4 dc4 A) 10.a4 Nd5=+ (10...h5 11.Na3=+) 11.Na3=+; B) 10.Qc1 Bd6 11.Qc4 =+.

9.Rg1 Bd6 10.Nh4 Ne5 11.Ng6 =+.

5.Nf3 f6

6.d4 e5 7.a3 e4 8.Nh4 Bf7 9.c4 c6 10.Nc3 h5 11.Bg2 Nh6 12.Qc2 hg4 13.hg4 Ng4 14.Ne4 Rh4 (better is 14...dc4!? 15.Nd2 g5+=) 15.Rh4+/– f5 16.Rg4! fg4 17.Nc5 (17.cd5 Bd5 18.Nc5 Bc5 19.dc5 Qg5 20.Bd5 cd5+–) 17...b6 18.cd5 cd5 (18...bc5 19.dc6 Qc7 20.Qe4 Be7 21.dc5+– (21.bc5?! Qa5 22.Kf1 Na6+=)) 19.Nd3+/– Nd7 20.Rc1 Rb8 (better is 20...g3!? 21.f4 Qf6+/–) 21.Qc6+– Qg5 (21...g3 22.fg3 Qf6 23.Bd5 Bd5 24.Qd5+–) 22.Ne5 Rd8 (22...Qf5+–) 23.Nf7 Kf7 (23...Bb4 24.ab4 Kf7 25.Bd5 Kf8+–) 24.Bd5 Ke8 (24...Qd5 25.Qd5 Ke8 26.Qh5 Ke7+–) 25.Qe6 Qe7 26.Qg6 (26.Qg6 Qf7 27.Qf7) 1–0. Fournier,Frederic (2415) – Al Qazzaz Rabea (2530), chess.com (Partie majoritaire), 2011.

6.d4 e6 7.b5 c5 8.a4 c4 9.Bg2 Bb4 10.Bc3 Qa5 11.Qd2= Bc3 12.Nc3 Ne7 13.Nh4 0–0 14.e4 Bf7= 15.ed5 Nd5? 16.Nd5+/– ed5?? 17.Qa5+– (17...b6 18.Qb4+–) 1–0. Roczniak,Jan – NN, Poland, 1956.

6.Bg2 e5 7.Nh4 Bf7 8.c4 c6 9.cd5 Bd5 10.a3 a5 11.ba5 Ra5 12.Nc3 Bg2 13.Ng2 Na6 14.Ne3= Nc5 15.g5 b5 16.Qc2 Qd7 17.a4 b4 18.Ne4 Qe6 19.gf6 Nf6 20.Ng5 Qb3 21.Qc1 Nd5 22.Rg1 Nf4–/+ 23.Kf1 h6 24.Nf3 Qe6 25.Qc4? e4 26.Ne5=+ Qc4 27.N3c4 Ra4 28.Nc6 Nh3 29.Ra4 Na4–/+ 30.Bg7 Rg8 31.Rg3 Rg7 32.Rh3 Rc7 33.N4e5 Rb7 34.Rb3=+ Rb6 35.d4 Nc3–/+ 36.e3 Bd6 37.Kg2 Ne2 38.f4=+ Be5 39.Ne5 Nc1 40.Rb2 b3–/+ 41.Kf1 Nd3 42.Nd3 ed3 43.Ke1 h5 44.Kd2 h4 45.Kd3 h3= 46.e4 h2=+ 47.Rh2 b2 48.Rb2 Rb2 49.f5 Ke7 50.e5= Rb1 51.f6 Ke6–/+ 52.Kd2 Kd5= 53.Ke2 Rh1 54.Kd2 Rf1 55.Ke2 Rc1 56.Kd2 Rb1 57.Ke2 Rb3 58.Kd2 Rf3 59.Ke2 Rh3 60.Kd2 Rh5 61.Ke3 Rh4 62.Kf3 Rh1 (62...Rd4?? 63.f7+–) ½–½. cgits (2700) – higarra (2605), net–chess.com, 2006.

5.Bg2 c6

6.a3 A) 6...f6 7.e4 (7.Nf3 a5 8.ba5 e5 9.g5=; 7.f4 e6 8.Nf3 a5 9.Nd4=; 7.Nc3 e5 8.e4 d4 9.Nce2=+; 7.h4 e5 8.h5 Bf7 9.d4=+) 7...e6 8.Qe2 Ne7 9.f4=; B) 6...Nd7 7.Nf3 (7.f4 e6 8.Nf3 a5 9.ba5=+; 7.d3 e5 8.Nf3 Bd6 9.c4=+; 7.h4 h5 8.g5 e5 9.d3=+; 7.e4 de4 8.Nc3 Ngf6 9.Qe2=+; 7.Nc3 e5 8.h4 h5 9.g5=+) 7...f6 8.Nh4 Bf7 9.e4=; C) 6...Nf6 7.Nf3 (7.d3 e6 8.Nf3 a5 9.g5=) 7...e6 8.d3 a5 9.g5=; D) 6...e6 7.h4 (7.Nf3 Nf6 8.d3 a5 9.g5=; 7.d3 a5 8.Nd2 Nf6 9.Ngf3=; 7.Nc3 e5 8.h4 h5 9.g5=+; 7.Bc3 Nf6 8.Nf3 Bd6 9.d3=+) 7...h5 8.g5 a5 9.Nf3=; E) 6...a5 7.Nf3 (7.h4 h5 8.g5 ab4 9.ab4=+; 7.ba5 Qa5 8.Nf3 Nd7 9.Ra2=+; 7.d3 ab4 8.ab4 Ra1 9.Ba1=+) 7...ab4 8.ab4 Ra1 9.Ba1=.

6.a4 Nd7 7.Nf3 Qc7 8.0–0 (8.b5 Ngf6=) 8...e5 (8...e6 9.e3+=) 9.c4 Bb4 (9...d4 10.Qb3=) 10.cd5+= cd5 (10...Ngf6 11.dc6 bc6 12.d4+=) 11.Qb3+/– Qd6 12.Na3 a5?? (better is 12...a6 13.Ne5 Ne5 14.Be5 Qe5 15.Qb4 Qe7+=) 13.Nb5+– Qb8 14.Rfc1 Ngf6 (14...Kf8 15.Nc7 d4 16.Na8 Qa8 17.Ba3+–) 15.Nc7 Ke7 (15...Kd8 16.Be5 Ne5 17.Ne5+–) 16.Ne5 Ne5 (16...Kf8 17.Ng6 hg6 18.Na8 Qa8 19.g5+–) 17.Be5 h5 (17...Kf8 18.Qb2 Qd8 19.Na8 Qa8+–) 18.Nd5 Nd5 19.Bb8 (19.Bb8 Rab8 20.Qd5+–) 1–0. pierred – anony, internet, 2015.

6.a4 e6 7.b5 h5 8.Nf3 hg4 9.hg4 Rh1 10.Bh1 Nd7 11.Bg2 Ngf6 12.Bh3 Bc5 13.e3 Kf8 14.d3 Ne8 15.Nbd2 cb5 16.ab5 Qb6 17.g5 Qb5 18.Rb1 Qa4 19.Ra1 Qc6 20.Nh4 Bh7 21.Qg4 g6 22.Nhf3 Ng7 23.Qh4 Kg8 24.Ke2 Bf8 25.Rc1 Nh5 26.Bg4 Qa4 27.c4 Bg7? (27...Nc5 28.Bd4 Qa3+/–) 28.Bg7+/– Ng7 29.cd5 Nf5 30.Bf5 Qh4 31.Nh4 ef5 32.Rc7 Nb6 33.e4 Re8 34.d6 (34.Rb7?! Nd5 35.Ra7 fe4 36.de4 Nc3 37.Ke3 Rc8+/–) 34...Rd8 35.e5 Rb8 36.Ng2 Nd5 37.Rc5 Nb6 38.d4 Na8 39.d5 b6 (39...Kf8+–) 40.Rc6 b5 (40...Kf8 41.d7 Rd8+–) 41.e6 fe6 42.de6 Nb6 43.Nf4 Re8 (43...Kf8+–) 44.Rb6! ab6 45.Nf3 Kf8 46.Ne5 b4 47.d7 Ra8 (47...Rd8 48.Nc6 Re8 49.d8Q Rd8 50.e7 Kf7 51.ed8Q b3 52.Ne5 Kg7 53.Ne6) 48.Nc6 Kg7 (48...Ra2 49.Kd3 Kg7 50.e7 Ra3 51.Kd4 Ra4 52.d8Q b3 53.Kd3 Rd4 54.Qd4 Kf7 55.Qd7 b2 56.e8Q) 49.e7 Ra2 (49...Bg8 50.d8Q Bc4 51.Kf3 Ra3 52.Kg2 Bf1 53.Kf1 Ra1 54.Kg2 Re1 55.Qf8 Kh7 56.Qf7 Kh8 57.Ng6) 50.Kd3 Bg8 (50...Ra3 51.Kd4 Ra1 52.d8Q Rd1 53.Nd3 Rd3 54.Kd3 Bg8 55.Qf8 Kh8 56.e8Q b3 57.Qg8) 51.e8Q Ra3 (51...Bc4 52.Kc4 Rc2 53.Kd5 Rd2 54.Nd4 Rd4 55.Kd4 b3 56.d8Q b2 57.Qg6) 52.Kd4 Bf7 (52...Rd3 53.Nd3 Bf7 54.Qe7 Kg8 55.Nce5 b3 56.d8Q Be8 57.Qde8) 53.Qe5 Kh7 54.d8Q Rd3 55.Nd3 Bg8 (55...Be8 56.Qde8 b3 57.Qf7) 56.Qde7 1–0. marekt (2150) – amstersofia (2155), gameknot.com, 2015.

6.a4 f6 7.Nf3 e5 8.b5 Bc5 9.d4 Bd6 (9...ed4!? 10.Nd4 Ne7+=) 10.de5+/– fe5 11.Ne5 Nf6 (11...Be5 12.Be5 Nf6 13.Nc3+/–) 12.Ng6 hg6 13.Qd3 Kf7 (13...0–0 14.Qg6 Nbd7 15.Nd2+/–) 14.c4 (14.g5 Nh5 15.bc6 Nc6 16.Bd5 Kf8 17.Qf3 Nf4+–) 14...dc4 (better is 14...Bb4 15.Bc3 Qd6+–) 15.Qc4 Kf8 16.Nc3 Qe7 17.Rd1 Nbd7 (17...a6+–) 18.bc6 Nb6 (18...bc6 19.Qc6 Rb8 20.Qd6 (20.Rd6?! Ne5 21.Qa6 Rb2+–) 20...Qd6 21.Rd6 Rb2 22.g5+–) 19.cb7 Rd8 (19...Re8 20.Qb3 Nfd7 21.Ne4 Bb4 22.Kf1+–) 20.Qc6 Qc7 (20...Bf4 21.0–0 Re8+–) 21.Qc7 Bc7 22.Rd8 (22.Rd8 Bd8 23.b8Q+–) 1–0. pierred – anony, internet, 2014.

6.d3 Qc7 7.a3 (7.c4 dc4 8.dc4 e5 9.a3=; 7.Nf3 Nd7 8.a3 e5 9.Nbd2=; 7.Nd2 e5 8.a3 Nd7 9.c4=; 7.h4 h5 8.g5 e5 9.a3=+) 7...e5 8.Nd2 Nd7 9.c4 =.

6.d3 Qd6 7.a3 (7.Qd2 e5 8.Nf3 Nd7 9.a3=+; 7.c3 e5 8.Nf3 Nd7 9.Nbd2=+; 7.Ba3 Nd7 8.b5 Qf6 9.Nd2=+) 7...e5 8.Nd2 Be7 9.c4 =.

6.d3 Nd7 7.Nf3 (7.a3 e5 8.Nf3 Bd6 9.c4=; 7.e4 de4 8.Be4 Be4 9.de4=+; 7.c4 dc4 8.dc4 e5 9.c5=+; 7.Nd2 e5 8.a3 Bd6 9.c4=+; 7.Qd2 e5 8.Nf3 f6 9.g5) 7...e5 8.Ne5 Bb4 9.c3 =.

6.Nf3= Qd6 7.a3 (7.Ba3 Qf6 8.d4 Nd7 9.h4=+; 7.c3 e5 8.a3 Nd7 9.d3=+; 7.b5 cb5 8.Ne5 Be4 9.f3=+) 7...Nd7 8.Nh4 e5 9.d4 =.

6.Nf3= e6 7.a3 (7.Ne5 Be4 8.Be4 de4 9.Nc4=; 7.Nc3 Nd7 8.b5 e5 9.bc6=+; 7.h4 Nf6 8.g5 Nh5 9.a3=+; 7.Bc3 Nf6 8.d3 Bd6 9.0–0=+) 7...a5 8.ba5 Qa5 9.Nc3 =.

6.Nf3= f6 7.a3!?+/– a5 8.ba5 e5 9.g5 =+.

6.Nf3= f6 7.d4 e6= 8.c3 (8.Qd2 Bd6 (8...Nd7= 9.Nh4=+) 9.Nh4=+) 8...Nd7 (8...Bd6 9.Nbd2=+) 9.Na3 (9.Nh4 Bf7=) 9...Qc7 (9...Bd6 10.Qd2=+) 10.Qd2 (10.b5 Kf7=) 10...Nb6 11.Nh4 (11.0–0 Na4=+) 11...Bf7=+ 12.e3 (12.Rc1!?=+) 12...Bd6–/+ 13.Nf3 (13.c4 dc4 14.Rc1 g5–+) 13...Ne7 14.Nc2 (14.Bf1!?–/+) 14...Nc4–+ 15.Qc1 e5 (15...a5 16.h4–+) 16.Na3 (16.de5 fe5 17.Ng5 Bg8–+) 16...Na3 17.Ba3 e4 18.Nd2 f5 19.c4 Qd7 20.c5? Bc7–+ 21.gf5 Nf5 22.Qb2 Bh5 23.Bf1 Ne3 24.Ne4 Nf1 25.Nd6 Bd6 26.cd6 0–0 27.Kf1 Bf3 28.Rh2 Qd6 29.Kg1 Rf6 (30.Re1 Rg6 31.Rg2 Rg2 32.Kf1 Qh2 33.Re8 Re8 34.Qe2 Rg1#) 0–1. Vater,Rainer (2140) – Goemann,Jens (2185), Thueringen–ch, 2006.

6.Nf3 f6 7.e3 e5+= 8.a3 a5 9.0–0 (9.ba5!? Qa5 10.g5+=) 9...ab4–/+ 10.ab4 Ra1 11.Ba1 Bb4 12.c3 (12.Nh4 Ne7–/+) 12...Bd6–+ 13.d4 Nd7 14.de5 fe5 (14...Ne5 15.Nh4–+) 15.Nbd2 (15.c4!? Ne7 16.cd5 cd5 17.Ng5–/+) 15...Bd3–+ 16.Re1 e4 (16...h5 17.gh5 e4 18.Nd4–+) 17.Nd4–/+ Qe7 (better is 17...Ngf6–/+) 18.Nf5= Qe5?? (18...Qf8 19.Ne4 Be4 (worse is 19...de4 20.Be4 Ne5 21.Bd3+/–) 20.Be4 Be5=) 19.Nd6?? (better is 19.f4 ef3 20.Nf3+–) 19...Qd6–/+ 20.Nf1 (20.c4 Qg6–/+) 20...Ngf6 (20...Qg6 21.Ng3–+) 21.Ng3 g6 22.Bf1? Ne5–+ 23.Bd3 Nd3 24.Re2 Ne5 25.Qb3 b5 26.Bb2 Nc4 27.Re1 0–0 28.Ra1 Rf7 29.Ba3 Na3 30.Qa3 Qe5 31.Qc5–/+ Qc7 32.Ne2? Nd7–+ 33.Qa7 Qd6 34.Nd4 Qf6 35.Rf1 Ne5 36.Qb8 Kg7 37.Qc8 Nf3 38.Kg2 Nd4 39.cd4 h5 0–1. Fournier,Frederic – Galgenstrick (2250), Partie amicale, 3m + 0s, 2008.

6.Nf3= f6 7.g5 Nd7 8.a3 e5 9.gf6 =+.

6.Nf3= Nf6 7.a3 (7.d3 e6 8.a3 a5 9.g5=; 7.Ne5 e6 8.a3 Bd6 9.Ng6=; 7.Nh4 e6 8.Ng6 hg6 9.a3=) 7...e6 8.Ne5 Bd6 9.Ng6 =.

6.h4 A) 6...h5 7.g5 (7.gh5 Bh5 8.c4 Nf6 9.cd5=+) 7...Na6 8.a3 f6 9.Nf3=; B) 6...h6 7.Rh3 (7.Nf3 e6 8.a3 a5 9.ba5=; 7.a3 Nf6 8.g5 hg5 9.hg5=+; 7.d3 Nf6 8.e3 e5 9.h5=+; 7.h5 Bh7 8.Nf3 Nf6 9.Rh4=+; 7.Nh3 Nd7 8.h5 Bh7 9.f4=+) 7...e6 8.a3 h5 9.g5=; C) 6...f6 7.h5 Bf7 8.a3 a5 9.ba5=+.

6.a4 a5

7.b5 f6 8.Ba3 A) 8...e5 9.Bf8 Kf8 10.Nf3 Kf7 11.d4 e4 12.Nh4 Ne7 13.c4 Re8=; B) 8...Nd7 9.Nf3 (9.d3 e5 10.c4 Ba3 11.Na3 Ne7 12.Nf3 0–0 13.Rb1 c5+=) 9...e5 10.Bf8 Nf8 11.d4 e4 12.Nh4 Ne7 13.c4 Ne6=; C) 8...e6 9.Bf8 (9.bc6 Nc6 10.Bf8 Kf8 11.Nc3 Nb4 12.Rc1 Rc8 13.e3 Kf7=) 9...Kf8 10.Nc3 d4 11.Na2 e5 12.Nf3 cb5 13.ab5 Qb6=; D) 8...Nh6 9.Nc3 (9.d4 e5 10.Bf8 Rf8 11.Nf3 Be4 12.Nbd2 Bf3 13.Nf3 e4+=) 9...e5 10.Bf8 Rf8 11.Rb1 Kf7 12.bc6 bc6 13.Nf3 Kg8=.

7.b5 f6 8.Nc3 A) 8...e6 9.Nf3 (9.h4 h5 10.gh5 Bh5 11.Rb1 Bc5 12.bc6 Nc6 13.Ba1 Rb8+=) 9...e5 10.0–0 Nd7 11.Nh4 Bf7 12.Nf5 h5 13.Ba3 hg4+=; B) 8...Nd7 9.Nf3 (9.Rb1 e5 10.h4 h5 11.gh5 Bh5 12.bc6 bc6 13.Bf3 Bf3+=) 9...e5 10.Nh4 Bf7 11.Nf5 g6 12.Ng3 d4 13.bc6 bc6=; C) 8...e5 9.Nf3 (9.bc6 bc6 10.Rb1 Bc5 11.e3 Na6 12.f4 Rb8 13.Nge2 Bc2–/+) 9...d4 10.Nb1 cb5 11.Nh4 Qb6 12.Ng6 hg6 13.c3 ba4+=.

7.b5 f6 8.bc6 bc6 (8...Nc6 9.Nc3 Nb4 10.Rc1 Rc8 11.e3 e5 12.d3 Bc5 13.Nf3 Ne7+=) 9.Nc3 e5 10.Rb1 Bc5 11.e3 Na6 12.f4 Rb8 13.Nge2 Bc2 –/+.

7.b5 f6 8.d3 A) 8...cb5 9.Nc3 (9.ab5 e5 10.Nd2 Bc5 11.Nb3 Be7 12.Ra4 Qb6 13.c4 dc4=) 9...e6 10.Nb5 Nc6 11.Nf3 e5 12.Rb1 Rc8 13.Nh4 Bf7=; B) 8...e5 9.g5 (9.c3 Qb6 10.Ba3 Ba3 11.Na3 Qc5 12.Qb3 Ne7 13.Rb1 0–0+=) 9...Nd7 10.Nf3 cb5 11.ab5 Qb6 12.gf6 gf6 13.c4 Bc5=.

7.b5 f6 8.e4 A) 8...Be4 9.Be4 de4 10.Nc3 Qd4 11.Nge2 Qd7 12.Ng3 cb5 13.ab5 e6=; B) 8...e6 9.Qe2 (9.ed5 ed5 10.Ne2 Bd6 11.0–0 Ne7 12.Nd4 Qd7 13.Re1 0–0=) 9...de4 10.Be4 Be4 11.Qe4 Qd5 12.Qd5 cd5 13.Nf3 Nd7=; C) 8...e5 9.ed5 cd5 10.Ne2 Ne7 11.d4 e4 12.f3 ef3 13.Bf3 Nd7=; D) 8...d4 9.f4 (9.Ne2 e5 10.Na3 Nd7 11.c4 dc3 12.Nc3 Nc5 13.0–0 Nd3–/+) 9...e5 10.Na3 Nd7 11.Nc4 Bf7 12.Bf1 Qc7 13.Qe2 cb5–/+.

7.b5 f6 8.Nf3 e5 (8...e6 9.Nc3 (9.Nh4 Bf7 10.Ba3 c5 11.Nc3 Bd6 12.Nf3 e5 13.e4 d4+=) 9...e5 10.0–0 Nd7 11.Nh4 Bf7 12.Nf5 h5 13.Ba3 hg4+=; 8...Nd7 9.Nh4 (9.Nc3 e5 10.Nh4 Bf7 11.Nf5 g6 12.Ng3 d4 13.bc6 bc6=) 9...Bf7 10.Nc3 e5 11.Nf5 g6 12.Ng3 d4 13.bc6 bc6=; 8...Qb6 9.Bd4 (9.g5 Nd7 10.gf6 ef6 11.0–0 Rc8 12.Nd4 Ne5 13.d3 Ne7=) 9...c5 10.Bb2 e5 11.d3 Bf7 12.Nbd2 Bd6 13.c4 Nd7=) 9.Na3 (9.d4 e4 10.Nh4 Bf7 11.Ba3 Ba3 12.Ra3 cb5 13.ab5 Ne7+=; 9.g5 Nd7 10.gf6 Qf6 11.Rg1 Bb4 12.Nc3 Ne7 13.Na2 Bd6+=) 9...Bc5 (9...Bd6 10.d3 Nd7 11.c4 Bb4 12.Nd2 Nc5 13.cd5 cd5+=) 10.d4 (10.0–0 Bd6 11.d3 Ne7 12.c4 0–0 13.bc6 bc6=) 10...Bb4 11.c3 Bd6 12.de5 (12.0–0 h5 13.g5 e4=) 12...fe5 (worse is 12...Be5 13.Ne5 fe5 14.c4+/–) 13.c4 Bb4 (13...Be4=) 14.Kf1 Nf6 (14...e4 15.Bg7 ef3 16.Bf3+/– (16.Bh8 fg2 17.Kg2 Qe7–/+)) 15.Ne5+/– 0–0 16.cd5 Nd5 17.Nac4 (17.Qd4 Nf4 18.Ng6 Qd4 19.Bd4 Ng6+–) 17...Qh4 (better is 17...Bc5!? 18.Bd4 Bc2+/–) 18.Bd5 cd5 19.Qd5 Kh8?? (better is 19...Bf7 20.Nf7 Rf7+–) 20.f3 (20.f3 Qe7 21.Ng6 hg6 22.Ne5+–; 20.Ng6 hg6 21.f3 Ra7+–) 1–0. marekt (2020) – toffie62 (1790), gameknot.com, 2014.

7.b5 f6 8.h4 A) 8...h5 9.gh5 (9.g5 e5 10.Nf3 Qb6 11.gf6 gf6 12.Ba3 Nh6 13.Rg1 Ba3+=) 9...Bh5 10.Ba3 e5 11.Bf8 Kf8 12.Nc3 Ne7 13.Rb1 Ke8=; B) 8...Qd7 9.h5 (9.bc6 bc6 10.h5 Bf7 11.Rh4 Nh6 12.e4 e5 13.ed5 Bd5+=) 9...Bf7 10.e4 Nh6 11.ed5 Bd5 12.Bd5 Qd5 13.f3 Ng4+=; C) 8...Nh6 9.g5 (9.h5 Bf7 10.e4 Qd7 11.ed5 Bd5 12.Bd5 cd5 13.g5 fg5+=) 9...Nf7 10.gf6 ef6 11.Nc3 Bd6 12.Nf3 Qb6 13.e3 0–0=; D) 8...e5 9.d4 (9.h5 Bf7 10.d4 e4 11.Ba3 Nh6 12.f3 ef3 13.ef3 Ba3+=) 9...Bb4 10.c3 Bd6 11.bc6 bc6 12.h5 Bf7 13.e4 Be6+=.

6.d3 e6

7.a3 a5 8.Nd2 Nf6 9.Ngf3 =.

7.c3 Bd6 8.Nd2 Nf6 9.Ngf3 =+.

7.Bc3 Nf6 8.Nf3 Bd6 9.Ne5 =+.

7.Qd2 Qb6 8.a3 a5 9.c3 =+.

7.Nd2 h5 8.Ngf3 hg4 9.Ne5 (9.hg4!? Rh1 10.Bh1+=) 9...gh3–/+ 10.Rh3 Rh3 11.Bh3 Bh5 12.a3 a5 (12...Nd7!?–/+) 13.c4+= Qh4 14.Bg2 Qg5 15.Kf1 ab4 16.Ndf3 Qd8 17.cd5 (17.ab4!? Ra1 18.Qa1+=) 17...ed5–/+ 18.ab4 Ra1 19.Qa1 (19.Ba1? f6–+) 19...f6 20.Qa7 Qc8 21.Qd4 Bf3 (better is 21...g6!?–/+) 22.Nf3= Bd6 23.Qh4 Nd7? (23...Nh6 24.Bf6 gf6 25.Qh6+=) 24.Bh3 (24.Qh8!? Kf7 25.Bh3+–) 24...Nh6+= 25.Bf6 gf6 26.Qh6 Kd8 (26...Qc7 27.Qg6 Kd8 28.Nd4+/–) 27.Nd4+/– Kc7 28.Ne6 Kb6 29.Qe3 Ka6 30.Nc5 Bc5 31.bc5 Qh8 32.d4 Ka7 33.Qa3 Kb8 34.Qg3 Kc8 35.Qg4 Qh7 36.Kg2 Kd8 37.Kg3 f5?? 38.Qg5+– Kc7 39.Qf5 Qf5 40.Bf5 Nb8? 41.Kf4 b5 42.cb6! Kb6 43.Ke5 Na6 44.Kd6 Nc7 45.Bd3 Nb5 46.Bb5 cb5 47.Kd5 Ka5 48.Kc5 b4 49.d5 (49.d5 b3 50.d6+–) 1–0. Beck,Hartmuth (2295) – Vitouch,Anatol (2335), 2nd Bundesliga Ost, 2012.

7.Nd2 h5 8.gh5 Rh5 9.Ngf3 =+.

6.d3 f6

7.a3 e5 8.Nf3 a5 9.ba5 =+.

7.c3 e5 8.Nd2 Bd6 9.a3 =+.

7.Qd2 e5 8.Nf3 a5 9.a3 =+.

7.Nd2 e5 8.a3 a5 9.c3 =+.

7.Nd2 e5 8.a3 Nd7 9.c4 d4 10.Qb3 Rc8 11.Be4 Bf7 12.e3 de3 13.fe3 h5 14.gh5 Bh5 15.Bf3 Ne7 16.d4 Qc7 17.Ne2 Nf5 18.Bh5 Rh5 19.c5 Be7 20.0–0–0 b6 21.Rdf1 (21.de5 fe5 22.Qg8 Nf8 23.Nc4+–) 21...bc5= 22.dc5 Nf8 23.e4 Nh4 24.Nc4 Rd8 25.Rhg1 Nhg6 26.Rf5 Rf5 (better is 26...Rh4!?+=) 27.ef5+= Nh4 28.Ne3 g5 29.fg6 Nhg6 (29...Nfg6 30.Qc2 Decoy; 29...Nhg6 30.Nf5 Decoy) 30.Nf5 Qc8 31.Ng7 Kd7 32.h4 Kc7 33.h5 Nh8 34.Nc3 Kb8 35.Ne4 Ka8 (35...Qd7!?+/–) 36.Qf3 Ne6 37.Nf5 Bf8 38.Nf6 (38.Nfd6!? Bd6 39.Nd6 Qd7 40.Qf6 Rf8 41.Qe5 Nf7+–) 38...Nf4 39.Nd6 Bd6 40.cd6 Nf7 41.d7 Qc7? (41...Qa6 42.Kb1 Qb5 43.Rc1+–) 42.b5 (42.Rg7 Nh6 43.Re7 e4 44.Qe4 Nd5+–) 42...Kb8 43.Kb1 (43.bc6 Qb6 44.Rg7 Nd6+–) 43...cb5 44.Qb3 (44.Rg7!? Ne6 45.Rf7 Ng5+–) 44...Qb6 45.Rg7 Qf6 46.Rf7 (46.Qf7?! Qd6+–) 46...Qe6? (46...Qd6 47.Qb5 Ka8 48.Be5 Qd1 49.Ka2 Qc2 50.Bb2 Nd3 51.Qd5 Kb8 52.Qb3 Qb3 53.Kb3 Rd7 54.Rd7 Nc5 55.Kc2 Nd7+–) 47.Qe6 Ne6 48.Be5 Kb7 49.Bf6 1–0. Schmikli,Laszlo (2285) – Ezsol,Miklos (2375), HUN–chT2 Charousek, 2006.

7.Nf3 e5 8.c3 Bd6 9.Bc1 =+.

7.h4 e5 8.a3 a5 9.c3 =+.

6.Nf3 Nd7

7.0–0 Qc7 8.a3 e5 9.Nc3 =+.

7.0–0 Be4 8.d3 Bf3 9.Bf3 e5 10.c4 dc4 11.dc4 Bb4 12.Qb3 a5 13.Rd1 Qc7 14.a3 Nc5 15.Qa2 Ra6 16.Nc3 Bc3 17.Bc3 Nf6 18.Qb2 Na4 19.Qd2 Nc3 20.Qc3 0–0 21.c5 Raa8 22.a4 Rad8 23.g5 Nd5 24.Qb2 Rd7 25.Rab1 Rfd8 26.Bg4 Re7 27.e4 Nb4 28.Rd8 Qd8 29.Qe2 Qd4 30.Rd1 Nd3 31.Rd3 Qa1 32.Kg2 g6 33.Rd8 Kg7 34.Rd7 Rd7 35.Bd7 Qa4 36.Bc8 Qd4 37.Qe3 Qe3 38.fe3 a4 39.Bb7 a3 40.Ba6 a2 0–1. aniabielak – alex1252, kurnik, 2012.

7.a3 f6 8.Nh4 Bf7 9.e4 =.

7.b5 cb5 8.Nc3 Rc8 9.a3 =+.

7.d3= e5 8.Ne5 Bb4 9.c3 =.

7.d4 e6=+ 8.a3 (8.Bc3 Bd6=+) 8...Ngf6 (8...a5 9.ba5 Qa5 10.Nbd2–/+) 9.Nbd2 (9.Nc3 a5 10.b5 cb5 11.Nb5 Rc8–/+) 9...Ne4 (9...a5 10.c3=+) 10.c4 h5 (10...Bd6 11.Rc1=+) 11.cd5 (11.Bc1 Bd6=+) 11...cd5 (11...ed5 12.Ne5 Ne5 13.de5 hg4 14.hg4 Rh1 15.Bh1–/+) 12.Ne5 Ne5 13.de5 Nd2 14.Qa4 Qd7 15.Qd7 Kd7 16.Kd2 a5 17.Bc3 (17.b5 Rc8 18.Rac1 Bc5=) 17...ab4 (17...hg4 18.hg4 Rh1 19.Rh1 ab4 20.ab4–/+) 18.ab4=+ Be7 (18...Ra1 19.Ra1 hg4 20.hg4–/+) 19.f4 f5 (19...Ra6 20.Ra6 ba6 21.gh5 Rh5 22.Ra1=) 20.g5 (20.ef6 Bf6 21.Bf6 gf6+=) 20...Rhc8= 21.e3 Be8 (21...h4 22.Bf3=) 22.Bf3 b5 (22...h4 23.Rhc1=) 23.Be2+= Kc7 24.Kc2 (24.Ra5 Ra5 25.ba5 Kb7=) 24...Kb7 25.Ra8 Ra8 26.Kb3 Ra4 (26...h4 27.Rd1+=) 27.Ra1+= Ra1 (27...Bd8 28.Ra4 ba4 29.Ka3+/–) 28.Ba1= g6 (28...Kc6 29.h4+=) 29.h4 (29.Bd4 Kc7+=) 29...Bc6 30.Bd4 Bd8 (30...Ka6 31.Kc3+=) ½–½. Schulze,Harald (2125) – Bayer,Christian (2145), Regionalliga NO, 2002.

7.h4 h5 8.g5 Qc7 9.c4 =.

7.Nh4 Be4 =.

7.Nh4 e5 8.Ng6 hg6 9.a3 =+.

5.Bg2 Nc6

6.b5 Nb4 7.d3 e6 8.a3 Nd3 9.cd3 Nf6 10.Nf3 Bd6 11.0–0 c6 12.bc6 bc6 13.g5 Nh5 14.h4 0–0 15.Nd4 Qc7 16.Qc2 Be5 17.Ra2 Rac8 18.Rc1 Nf4 19.e3 Nd3 20.Qc6 Nc1 21.Qc1 Qc1 22.Bc1 Rc1 23.Bf1 Bb1 24.Rb2 Bg6 25.Ne2 Bb2 26.Nc1 Bc1 0–1. wk1234 – richard83, playok.com, 2012.

6.b5 Nb8 7.d3 e6 8.Nd2 Qd7 9.a4 Ne7 10.c4 d4 11.Bb7 c6 12.Ba8 a6 13.Ngf3 Qa7 14.Bc6 Nbc6 15.bc6 Nc6 16.Nb3 Bd6 17.Nbd4 Nd4 18.Bd4 Bb4 19.Kf1 Qb7 20.Rb1 0–0 21.Bc3 a5 22.Bb4 ab4 23.Qb3 Rb8 24.Kg2 Qc6 25.e4 Qd6 26.Rhd1 Qf4 27.a5 f5 28.ef5 ef5 29.c5 Bf7 30.Qa4 fg4 31.hg4 Qg4 32.Kf1 Qf3 33.Qd7 Bd5 34.Qd6 Rf8 35.Rd2 Qh1 36.Ke2 Bf3 37.Ke3 Qb1 38.Qe6 Kh8 39.Kd4 Qa1 40.Kc4 Qc3 41.Kb5 Qd2 42.Qd6 Rc8 43.a6 Bc6 44.Kb6 b3 45.Ka7 Qb4 46.Qe6 Qb8 0–1. karoo54 – mexicanboy, kurnik, 2012.

5.Bg2 e6

6.a3 A) 6...f6 7.Nf3 (7.c4 c6 8.Qb3 Bd6 9.Nf3=; 7.Nc3 c5 8.bc5 Bc5 9.e3=; 7.d3 a5 8.b5 c6 9.c4=; 7.h4 h5 8.gh5 Bh5 9.c4=+; 7.d4 c6 8.Nd2 a5 9.ba5=+) 7...c5 8.c3 Bd6 9.bc5=; B) 6...Nd7 7.Nc3 (7.c4 c6 8.d3 dc4 9.dc4=; 7.Nf3 Ngf6 8.0–0 c5 9.bc5=+; 7.h4 h5 8.g5 a5 9.ba5=; 7.d3 c5 8.bc5 Nc5 9.Nf3=; 7.c3 a5 8.d3 Ngf6 9.b5=+) 7...a5 8.b5 Nb6 9.d3=; C) 6...Nc6 7.d3 (7.Nf3 Nf6 8.d3 Bd6 9.h4=) 7...f6 8.Nd2 Qd7 9.c4=.

6.a3 h5 7.d3 (7.Nf3!?=) 7...hg4–/+ 8.hg4 (8.c4 Nf6=+) 8...Rh1 9.Bh1 Qh4 10.Bf3 a5 11.ba5 (11.b5 Qh2 12.Kf1 c6–/+) 11...Nc6 (11...Qh2 12.Kf1 Nh6=+) 12.Nd2 (better is 12.e3!?=+) 12...Bc5–/+ (12...Ra5?! 13.e3=; 12...Na5?! 13.Be5=) 13.e3 Be3 14.Qe2 Bd4 15.c3 Be5 (15...Qh2 16.cd4 Qg1 17.Nf1 Na5 18.0–0–0+=) 16.0–0–0 (16.d4!? Bf4 17.Nf1–+) 16...Nf6 17.g5 (17.Re1–+) 17...Qg5 18.Nh3 (18.Bh1 A) 18...Na5?! 19.Ngf3 Bh5 A1) 20.Ng5? Be2 21.Re1 Bf4 22.Ne6 fe6 23.Re2 Nb3 24.Kc2 Nd2–+ (24...Bd2?! 25.Kb3 Bf4 26.Re6 Kd7 27.Re1=); A2) 20.Qe5 Nb3 21.Kc2 Qe5 22.Ne5 Bd1 23.Kd1=+; B) 18...Qf5 19.Kc2 Nh5–+) 18...Qf5 19.Rh1 Qd3 (better is 19...Ra5!? 20.Nb3 Rb5 21.Kc2–+) 20.Qd3 Bd3 21.Nf4 Bh7 22.Nh5 Bg8 23.c4 Nh5 24.Rh5 Bb2 25.Kb2 f6 26.cd5 ed5 27.Bd5–/+ 0–0–0 28.Bg8? Rd2–+ 29.Kc3 Rf2 30.Be6 Kd8 31.Rd5 Ke7 32.Bf5 Rf3 33.Kb2 Ne5 34.Bc8 Nc4 35.Kc1 Rc3 36.Kb1 g5 37.Rd7 Kf8 38.Bb7 Rb3 (39.Kc2 Rb7 40.Rd8 Ke7–+) 0–1. Kaczmarek,Michal – Julian Barrachina,Luis, IECC, 1998.

6.b5 a6 7.a4 ab5 (7...Nf6 8.c4=+) 8.ab5 Ra1 9.Ba1 h5 (9...Nf6 10.c4=+) 10.Nf3= (10...Nd7 11.g5=). valpa – BEATNIK, playchess.de, 2002.

6.c3 Nf6 7.Nf3 Nbd7 8.d3 c6 9.a4 Bd6 10.Nbd2 0–0 11.Nh4 Qc7 12.Ng6 fg6 13.Qb3 Rf7 14.c4 Be5 15.d4 Bd6 16.c5 Bf8 17.Nf3 Ne4 18.0–0 Be7 19.Bc1 Raf8 20.Be3 g5 21.b5 Bf6 22.Rad1 h6 23.Nd2 (23.Ne1 e5 24.Be4 de4+=) 23...Nd2+= 24.Rd2 e5 25.de5 Ne5 26.b6 Qb8 27.ba7 Qa7 28.Rd5 (28.Rc1!?–/+) 28...cd5 29.Bd5 Qa6 30.f4 (30.Qb5!?–/+) 30...gf4–+ 31.Bf4 Qe2 32.Rf2 Qd3 33.Qb7 Qd4 (33...Bh4 34.Bf7 Rf7 35.Qb8 Kh7 36.Qe5 Bf2 37.Kf2–+) 34.Bf7? (34.Be5!? Qe5 35.Kg2–/+) 34...Rf7 35.Qc8?? (35.Be5 Rb7 36.Bd4 Bd4–+) 35...Rf8 (better is 35...Bd8 36.Bg3 Nd3–+) 36.Qe6 Kh8 37.Be5 (37.Qd6 Qd6 38.cd6–+) 37...Be5 0–1. Kuznetsov,Petr (2030) – Anisimov,V (2205), Kemerovo–ch, 2009.

6.Nc3 A) 6...Nc6 7.a3 (7.b5 Ne5 8.d3 Bd6 9.e3=+) 7...a5 8.b5 Ne5 9.d3=; B) 6...Nd7 7.a3 (7.Nf3 Nb6 8.Rb1 Nf6 9.Ba1=+; 7.Rb1 h5 8.e4 d4 9.Nce2=+; 7.b5 Nb6 8.Rb1 Nf6 9.Nf3=+; 7.e4 d4 8.Nce2 e5 9.c3=+; 7.Na4 Ngf6 8.a3 Bd6 9.c4=+) 7...a5 8.b5 Ngf6 9.Nf3=+; C) 6...h6 7.a3 (7.b5 Nf6 8.Nf3 Bd6 9.d3=+; 7.e4 d4 8.Nce2 e5 9.c3=+; 7.Na4 Nd7 8.c4 Ngf6 9.a3=+; 7.Nb1 Nf6 8.a3 c5 9.b5=+) 7...Nf6 8.Nf3 c5 9.bc5=+; D) 6...c6 7.a3 (7.Nf3 Nd7 8.b5 e5 9.a3=+; 7.b5 d4 8.Nb1 e5 9.Nf3=+; 7.e3 e5 8.a3 h5 9.d3=+; 7.e4 d4 8.Nce2 e5 9.f4=+; 7.a4 Nf6 8.b5 d4 9.Nb1=+) 7...a5 8.Nf3 Nf6 9.b5=; E) 6...Nf6 7.a3 (7.b5 Bd6 8.Nf3 0–0 9.d3=+) 7...c5 8.bc5 Bc5 9.Na4=+.

6.c4 Bb4?? 7.Bg7+– c6 8.Bh8 dc4 9.Qc1 +–.

6.c4 Bb4?? 7.Bg7 Bd2 8.Nd2 +–.

6.c4 Bb4?? 7.Bg7+– Qd7 8.Bh8 Nc6 9.Bc3 (9.a3 Be7+–) 9...Bf8 (9...dc4 10.Qa4 Bd6 11.Qc4+–) 10.d3 (10.Qb3 0–0–0 11.cd5 ed5+–) 10...Nge7 (10...d4 11.Bd2+–) 11.Nf3 (11.h4 d4 12.Bd2 h5+–) 11...h6 12.Nbd2 a5 13.a4 f5 14.Nh4 Bf7 15.Bf6 Ra6 16.Be7 Be7 17.cd5 ed5 18.e3 Bh4 19.0–0 Bf6 20.Qb3?? b6?? 21.Qd1?? Nb4 22.Qe2 Ba1= 23.Ra1 Nc2 24.Rc1 Nb4 25.e4 Be6?? 26.ef5+– Qa4 27.Qe6 Kd8 28.Bd5 Nd5 29.Qd5 Qd7 30.Qd7 Kd7 31.Ra1 Ra8 32.Nc4 Ke7 33.f4 Kf8 34.Kf2 Rb8 35.Ne5 Rd8 36.Ke3 Rd5 37.Ke4 Rb5 38.Nc4 Rb3 39.h4 Rc3 40.Ne3 Rc6 41.g5 Kg8 42.Nc4 Kh8 43.Ne5 Kg8 44.Nc6 Kf8 45.Na5! ba5 46.Ra5 Ke7 47.Ra6 Kd7 48.Re6 Kc8 49.g6 Kb7 50.g7 Kb8 51.g8Q Kb7 52.Kd5 h5 53.Kc5 c6 54.Rc6 Ka7 55.Rh6 Kb7 56.Qf7 Ka8 57.Rh8# 1–0. Trkn – Ingrid, itsyourturn.com, 2000.

6.e3 Nd7 7.Ne2 c6 8.a3 e5 9.d3 Qb6 10.Nd2 a5 11.0–0 Bd6 12.e4 Ne7 13.d4 0–0 14.ed5 cd5 15.de5 1–0. alldrix – C.R.R.C, Torneo C67 ACEDE (year?).

6.Nf3 Be4 7.d3 Bf3 (worse is 7...Bb4 8.Kf1 Bf3 9.Bg7 Bg2 10.Kg2+/–) 8.Bf3 Nf6 9.a3 Bd6 (better is 9...c5!?=) 10.g5+/– Nfd7 11.Bg7 Rg8 12.Bh6 Bf4 13.h4 Nc6 14.e3 Be5 15.d4 Bg7 16.Bg7 Rg7 17.c4! dc4 18.Nd2 e5 19.Nc4 1–0. b4_player – manne, casual, 2013.

6.Nf3 f6 7.a3 c5 8.c3 Bd6 9.bc5 =.

6.Nf3 h5 7.Ne5 (7.a3 hg4 8.hg4 Rh1 9.Bh1 Nd7=) 7...Be4 8.f3 (8.Be4!? de4 9.a3=+) 8...Bh7 (8...Qh4 9.Kf1 Bh7 10.Qe1–/+) 9.a3 (9.Nd3 Bd3 10.ed3 Qd6–/+) 9...a5 (9...Qh4 10.Kf1–/+) 10.b5 (10.e4 Qh4 11.Ke2 ab4 12.ab4 Ra1 13.Ba1 Bb4–/+) 10...c6 (10...Qh4 11.Kf1–/+) 11.bc6 (11.e4 Qh4 (11...cb5?! 12.Qe2=) 12.Ke2 cb5=+) 11...Nc6 (11...Qh4 12.Kf1 Nc6 13.e3–/+) 12.Nc6 (12.Rf1 Bd6 13.Nd3 Bd3 14.ed3 Qh4 15.Ke2 Qg3–+) 12...Qh4 13.Kf1 bc6 14.d3 Bc5 (14...Rb8!? 15.Be5 Rb5–/+) 15.Qe1=+ Qe1 16.Ke1 f6 17.gh5 Ne7 (17...Rb8 18.Bc3 a4 19.f4=+) 18.h6= Rg8 19.hg7 Rg7 20.Bf1 e5 21.Nd2 (21.e4 Rb8 22.Bc3 a4=) 21...Rb8 (21...Nf5 22.e4 Ne3 23.Rc1=) 22.Nb3= Bb6 (22...Nf5 A) 23.Na5?? Rb2 24.Nc6 Ne3–+ (< 24...Rc2 25.Nb4 Ne3 26.h4–+); B) 23.Bc3 Rb3 24.cb3=+) 23.f4 a4 (23...d4 24.e4=) 24.fe5+= ab3 25.ef6 (25.cb3?! f5=) 25...bc2 26.Kd2 Rg2?? (better is 26...Rg1 27.Rg1 Bg1=) 27.Bg2+– (27...Nf5 28.Be5+–) 1–0. Wall,Bill – Perkins,Robert, Microsoft Gaming Zone, 1999.

6.h4 A) 6...h6 7.a3 (7.h5 Bh7 8.c4 Nf6 9.Qb3=+; 7.c4 Nf6 8.h5 Bh7 9.cd5=+; 7.b5 Nf6 8.e3 a6 9.Nc3=+; 7.e3 Nf6 8.a3 Nbd7 9.d3=+; 7.Bf3 Nf6 8.a3 c5 9.b5=+) 7...Nf6 8.e3 a5 9.b5=+; B) 6...f6 7.h5 (7.a3 h5 8.gh5 Bh5 9.c4=+) 7...Bf7 8.a3 Nc6 9.d4=; C) 6...h5 7.g5 f6 8.c4 fg5 9.Nf3=+.

6.a3 a5

7.ba5 Ra5 8.Nf3 Nf6 9.Ne5 =.

7.b5 c6 8.c4 (8.Nf3 cb5 9.Nc3 Qb6 10.Nh4 Nc6 11.Ng6=+; 8.h4 h5 9.bc6 Nc6 10.g5 e5 11.Nc3=; 8.bc6 Nc6 9.d3 Nf6 10.Nd2 Bc5 11.e3=+; 8.Nc3 d4 9.bc6 Nc6 10.Ne4 Be7 11.c3=+) 8...Nf6 9.Nc3 dc4 10.Qa4 Nfd7 11.Qc4 =.

7.b5 Nd7 8.e3 (8.h4 h5 9.g5 c6 10.Nc3 Bd6 11.Nf3=; 8.c4 c6 9.Nc3 Rc8 10.d3 Ngf6 11.bc6=; 8.d3 Ngf6 9.h4 Ng4 10.e4 Ngf6 11.h5=+) 8...h5 (8...c6 9.Nc3 cb5 10.Nb5 Rc8 11.Rc1=) 9.d3 hg4 10.Qg4 (10.hg4 Rh1 11.Bh1 Qh4=+) 10...Bh5 (10...Ngf6 11.Qe2=+) 11.Qg3 Ne7 12.e4 (12.Bg7? Rg8 13.Bf8 Rg3 14.Be7 Re3 (14...Rg2 15.Bd8 Rd8 16.Nc3+/–; 14...Qe7?! 15.fg3 Qc5 16.Kd2–+; 14...Ke7?! 15.fg3 Qh8 16.d4–/+) 15.fe3 Qe7–+ (15...Ke7?! 16.Ne2–+)) 12...Ng6 (better is 12...de4 13.Be4 Nc5=+) 13.Nd2? (better is 13.ed5 Bd6 14.Qe3=) 13...Bd6–+ 14.e5 (better is 14.f4!? Bf4 15.Qf2–/+) 14...Nde5 15.f4 (15.Qe3 Nh4 16.Kf1 Qf6–+) 15...Nf4! 16.Qg7 (16.Qf4 Nd3) 16...Qh4 17.Kf1 Bc5 (17...Ng2?! 18.Qg2 0–0–0 19.Qf2–+) 18.d4 Nfd3! 19.cd3 (19.cd3 Qf4) 19...Nd3 (20.Qh8 Bf8–+) 0–1. blackcrowman – marekt, ChessWorld.net, 2008.

7.c3 Nf6 8.d3 Bd6 9.Nf3 =+.

7.c3 h5 8.e3 hg4 9.Qg4 Nc6 10.d4 ab4 11.Nf3 Nf6 12.Qg3 Ne4 (13.Qg4 Bh5–+) 0–1. bai_bai – pierre (2165), internet, 2007.

7.c3 h5 8.Nf3 hg4 9.hg4 Rh1 10.Bh1 Nd7 11.d3 e5 12.Nbd2? (better is 12.Bg2=) 12...e4–+ 13.de4 de4 (13...Be4?! 14.b5=) 14.Nd4? (better is 14.Nc4!? ef3 15.Bf3 ab4 16.cb4–+) 14...Qh4–+ 15.Be4 Be4 16.Ne4 Qh1 17.Kd2 Qe4 18.f3 Qf4 19.e3 Qh6 20.Nf5 Qh2 21.Qe2 Ne5 22.Ng7 (22.Qh2 Nf3 23.Ke2 Nh2 24.g5–+) 22...Bg7 23.c4 (23.Qh2 Nf3 24.Ke2 Nh2 25.g5–+) 23...0–0–0 24.Bd4 Nf3 (25.Kd3 Bd4 26.ed4 Rd4 27.Ke3 Qf4 28.Kf2 Nf6 29.Ra2 Ng4 30.Kf1 Rd1 31.Kg2 Rg1 32.Kh3 Qg3#) 0–1. reddragonx (1740) – pierre (2115), internet, 2007.

7.c4 ab4 8.ab4 Ra1 9.Ba1 =+.

7.Nf3 Nd7 8.b5 Ngf6 9.d3 =.

7.h4 h5 8.g5 ab4 9.ab4 Ra1 10.Ba1 f6 11.gf6 =+.

7.b5 Nf6

8.c4 c6 9.Nc3 dc4 10.Qa4 Nfd7 11.Qc4 =.

8.c4 h5 9.cd5 =+.

8.d3 c6 9.Nc3 d4 10.Ne4 Ne4 11.de4 =+.

8.e3 Bd6 9.h4 h6 10.f4 Qd7 11.a4 =.

8.Nf3 Bd6 9.d3 c6 10.bc6 Nc6 11.Nbd2 =+.

6.a3 Nf6

7.Nc3 c5 8.bc5 Bc5 9.Na4 =+.

7.c4 c6 8.Nf3 dc4 9.Ne5 =+.

7.d3 a5 8.ba5 Ra5 9.Nd2 Be7 10.c4 0–0 11.Ngf3 =.

7.d3 c5 8.Qd2 Nc6 9.b5 =.

7.e3 Nbd7 8.Nf3 a5 9.b5 =+.

7.Nf3 c5 8.g5 Nh5 9.bc5 =+.

7.g5 Nh5 8.Nf3 Be7 9.d3 =+.

6.c4 c6

7.b5 Nf6 8.Qa4 (8.Nc3 dc4 9.Qa4 Qb6 10.Qc4 a6 11.bc6 Nc6=) 8...Be7 (8...Nbd7 9.bc6 Nc5 10.Qd1 bc6 11.Nf3–/+) 9.Nf3 0–0 10.cd5 cd5 (10...Qd5?! 11.Nc3 Qc5 12.Rc1=) 11.Nc3 Nbd7 12.d3 Nc5 13.Qd4 b6 14.h4 h6 (14...Bd6!? 15.h5 e5 16.Ne5 Ne6+=) 15.Ne5+/– Bh7? (better is 15...Qc7!?+/–) 16.g5+– hg5? (better is 16...Ne8+–) 17.hg5 Nfd7 (17...Qd6+–) 18.Qh4 f6 (18...Nf6 19.gf6 Nd3 20.ed3 Re8 21.Qh7 Kf8 22.fg7) 19.Qh7 1–0. marektheim – tudyl, internet, 2015.

7.c5 a5 8.a3 Na6 (8...ab4 9.ab4 Ra1 10.Ba1=+) 9.Qb3 b6 10.Qa4 Ne7 11.Bd4 ab4 (11...bc5!? 12.bc5 e5 13.Be5 Nc5=+) 12.cb6= Nc5 (12...Be4 13.b7 Rb8 14.f3 Bb1 15.Rb1+=) 13.Qb4+= Ra4?? (13...Be4 14.b7 Rb8 15.Bc5 (15.Qc5?! Bg2 16.Rh2 Be4=+) 15...Bg2 16.Rh2+/–) 14.Qc5= Rc4 15.a4 (15.Qc4! dc4 16.Nf3=) 15...Rc5=+ 16.Bc5 Be4 (16...Qa8 17.Nf3=+) 17.Be4 de4 18.a5 Nd5 19.Bf8 Rf8 20.b7 (20.Nc3 Nb4 21.Rb1 Nc2 22.Kd1 Na3+/–) 20...Kd7 (20...Nb4 21.Kd1=) 21.Kf1 (better is 21.Nc3+/–) 21...Qf6 22.Ra2 Qd4 23.Nc3 Nc3 24.dc3=+ Qc4 25.Ra3 Qa6+= 26.h4?? Rb8–/+ 27.Rh3 Rb7–+ 28.Re3 f5 29.gf5 ef5–+ 30.h5 Rb1 31.Kg2 g5 32.hg6 hg6 33.Nh3 Rb5 34.Rg3 Ra5 (35.Ra5 Qa5–+) 0–1. Woschkat,Karl_Heinz – Buettner,Fritz, 1.E/GM/V05 CiF, 2001.

7.c5 Nf6 8.Bd4 =+.

7.cd5 ed5 8.a3 Nd7 9.d3 Ngf6 10.Nc3 Bd6 11.b5 0–0 12.Nf3 Qe7 13.bc6 bc6 14.Nh4 Rab8 15.Ng6 hg6 16.Qd2 Nc5 17.Ra2 Rfe8 18.d4 Nce4 19.Ne4 Ne4 20.Qc2 Rb6 21.e3 Qh4 22.Kf1 Re7 23.a4 a5 24.Ba1 Bb4 25.Qd3 Qf6 26.Kg1 Be1 27.f3 Ng3 28.Rh2 Reb7 29.h4 Rb1 30.Rh3 R7b3 31.Qc2 Qd6 32.f4 Ne4 33.Be4 de4 34.Bb2 (time, 1–0). Machete99 (2255) – FishNet (1970), ICC, 2002.

7.cd5 ed5 8.Nf3 =+.

7.Nf3 Nd7 8.c5 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 Qa8 12.Bc3 Ngf6 13.d3 b6 14.cb6 Qb7 15.Nbd2 Qb6 The isolani on b4 becomes a target 16.Qa4 Be7 17.Qa8 Nb8 18.0–0 0–0 (18...Bb4? 19.Bb4 Nfd7 20.Rb1+–) 19.Qa5 Nbd7 20.Rb1 (20.Qb6!? Nb6 21.Ne5+=) 20...Rb8 21.Qa4 Qc7 22.Ra1 Ne8 23.g5 Nd6 24.h4 (24.Qa7!? Qd8 25.Nd4+=) 24...Nb5–/+ 25.Bb2 Qf4 26.Qc2 Qb4 27.Rb1 (27.Ra6!?–/+) 27...Qd6–+ 28.e4 f6 29.Re1 e5 30.gf6 gf6 31.Nh2 Bh5 32.Ndf3 Kf7 33.Qd2 Rg8 (better is 33...de4!? 34.de4 Qd2 35.Nd2 Nc5–+) 34.Qh6–/+ Bg6?? (better is 34...Bf3 35.Nf3 Rg7–/+) 35.h5+/– Nf8 36.hg6 Rg6 37.Qh5 Kg7?? (better is 37...de4!? 38.de4 Ke8+/–) 38.Nh4 (better is 38.Ne5 Qb4 39.Rb1+–) 38...Qb4 39.Nf5 (39.Re2 Ne6 40.Ng6 hg6+/–) 39...Kf7 40.Qe2 (better is 40.Re2!? de4 41.de4+–) 40...Ne6+= 41.Bc1 Nc3 (41...Ned4 42.Nd4 Nd4 43.Qd1+=) 42.Qf1 (42.Qh5 Kg8+/–) 42...Na2 (42...Bc5 43.Bd2+/–) 43.Kh1 (worse is 43.Ne7 Ke7 44.ed5 cd5=) 43...Nc1 44.Rc1 Nf4 45.Ng3 (45.Rb1 Qa3 46.Rb7 Rg2 47.Ne7+/–) 45...h5? (45...Qb5 46.ed5 cd5 47.Rb1+=) 46.Nf3 (46.Bf3!? Qb5 47.Nh5 Nd3 48.Rd1+–) 46...Bc5 47.Rb1 Qc3 48.Nh4 Rg4 49.Nhf5 Ke6? (49...Qd3 50.Rb7 Kf8 51.Qa1+–) 50.Nh6?? (50.d4 Bd6 51.Qa6 Kd7 52.ed5 Ng2 53.Rb7 Bc7 54.Rc7 Kc7 55.Qa7 Kc8 56.Nd6 Kd8 57.Qb8 Kd7 58.Qc8 Kd6 59.Qd8) 50...Rg6?? (50...Rh4 51.Kg1 A) 51...Nd3 52.Bh3 f5 53.ed5 Kd5 54.Rd1 (54.Bf5?? Bf2 55.Qf2 Nf2–+; 54.Ngf5 Nf2 55.Qg2 Ne4 56.Kh2 Rh3 57.Qh3 Qd2 58.Qg2 Qg2 59.Kg2 Nf2+/–) 54...Bf2 55.Qf2 Rh3 56.Qg2 e4 57.Qh3 Qd4 58.Kh2 Qf2 59.Qg2 Qg2 60.Kg2+–; B) 51...Qd3+=) 51.Bh3+– Kd6 52.Nhf5 (better is 52.Rb7 Ba3 53.Nf7 Kc5 54.Bf5+–) 52...Kc7+/– 53.Rc1 Qa3 54.Bg2 Nd3 55.Rc5 Nc5 56.ed5 cd5 57.Bd5 (better is 57.Ne7!? Rg5 58.Nd5 Kd8 59.Qb5+/–) 57...Qd3+= ½–½. Kuehnemund,Lutz (1920) – Moritz,Aron (1965), Berlin Lichtenberger op 7th, 2008.

7.cd5 cd5

8.a3 Nf6 9.Nf3 h6 10.d3 Be7 11.0–0 0–0 12.Nbd2 Nbd7 13.Rc1 Rc8 14.Qb3 Bd6 15.Rc8 Qc8 16.Rc1 Qb8 17.Qc2 Be7 18.Nb3 Nb6 19.Be5 Qa8 20.Qb2 Rc8 21.Nc5 Bc5 22.bc5 Nbd7 23.Bd4 ½–½. Fournier,Frederic – Ekmark,Raimo, ESLI Match FRA–FIN, 1998.

8.Nf3 Bb4?? 9.Bg7 Nc6 10.Bh8 +–.

8.Nf3= Nd7 9.a3 (9.Ne5 Ne5 (9...Bb4? 10.Nd7 Qd7 11.Bg7+–) 10.Be5 Ne7=+) 9...a5 (9...Ngf6 10.Ne5=+) 10.b5 (10.ba5 Qa5 11.Qb3 Nc5=+) 10...Ngf6 11.d3 (11.Nc3 Bd6=) 11...Bd6 (11...Qb6 12.Nc3=) 12.Nc3 (12.g5 Nh5=) 12...0–0=+ 13.0–0 Rc8 14.Na4 e5 15.Nh4 Nb6 16.Rc1 Rc1 17.Bc1 Nfd7 18.Ng6= hg6 19.Bd2 Qa8 20.Nb6 Nb6= 21.Qb3 a4 22.Qa2 Rc8 23.e3 Be7 24.Rb1 Rc7 25.Bf3 Qc8 26.Ba5 Rc1 27.Kg2 e4 28.Be2 ed3 29.Bd3= Rb1 30.Qb1 Nc4 31.Bb4 Qf8 32.Be7 Qe7 33.Qc2 Nb6 34.Qc3 Qd6 35.Bc2+= Nc4 36.Ba4 Qa3 37.Qa3 Na3 38.h4 Kf8 39.b6 Nc4 40.Bc6 Nb6 41.Bb7 Ke7 42.Bc6 Ke6 43.Kg3 Nc4 44.Kf4 Nd6 45.f3 Nc8 46.e4 de4 47.Be4 Ne7 48.Bb1 Nd5 49.Kg5 Ke7 50.Bc2 (50.Be4 Ne3+=) ½–½. Poschmann,Hans – Johnson,Chuck, P–819, 1997.

8.Nf3 f6 9.b5 Nd7 10.Nh4 Bf7 11.f4 (11.Nc3!?+=) 11...Bd6 12.e3 Qb6 13.a4 Nc5 (13...g5!? 14.Bd4 Qc7–/+) 14.0–0 Ne7 15.Nc3 Nd3 16.a5 Qc7 (worse is 16...Nb2 17.ab6 Nd1 18.Ra7+=) 17.Ba3 Ba3 18.Ra3 0–0 19.Nd5 Nd5 20.Bd5 Nf4 21.Rf4 ed5 22.Rd4 (better is 22.Nf5=) 22...Qg3–/+ 23.Ng2 Qh3 24.Qb1 (24.Nf4 Qg3 25.Kh1 Rfc8–/+) 24...Bg6 25.Qb3 Bf7 26.Qb1 Qg3 27.Rf4 Rac8 28.Qb2 Qh3 29.Rc3 h5 (29...Bg6 30.Qa2 Rc3 31.dc3–/+) 30.gh5–/+ Qh5 31.b6 a6 (31...ab6!? 32.ab6 Rc3 33.Qc3 Bg6–/+) 32.Rc7+= Rb8 33.Qc2 Bg6 34.d3 Qe5 35.Rg4 Qf5 36.Qe2 Bf7 37.Nf4 Rfe8 38.Qg2 Exerts pressure on the isolated pawn (better is 38.Ng2!?+=) 38...g5–/+ 39.Qh3 (39.Rf7!? Kf7 40.Qd5 Qd5 41.Nd5–+) 39...Re3!–+ 40.Qe3 Qg4 41.Ng2 Re8 42.Re7 Kf8 (42...Re7 43.Qe7 Qd4 44.Kh1 Qa1 45.Kh2 Qe5 46.Qe5 fe5 47.Ne3–+) 43.Re8 Be8 44.Qc5 Kf7 (better is 44...Kg7–+) 45.Qd5–/+ Kg6?? (better is 45...Kf8 46.Qb7 Qd4 47.Kh2 Qe5 48.Kg1 Qa5=) 46.Qg8+– Kf5 47.Qe8 Qd1?? (47...Qd4 48.Qe3 Qe3 49.Ne3 Ke5 50.Kg2+–) 48.Kh2 (48.Kf2 Qd2 49.Kg3 Qd3 50.Ne3 Qe3 51.Qe3+–) 48...Qd3 49.Qc8 Kg6 50.Qb7 Qd6 51.Kg1 Qd1 52.Kf2 Qd2 53.Kf3 Qc3 54.Ke2 (better is 54.Ne3 g4 55.Kg4 Qe3 56.Qd5+–) 54...Qe5?? (better is 54...Qc2!? 55.Kf1 Qd3 56.Ke1 Qc3 57.Kd1 Qd3 58.Kc1 Qc3 59.Kb1 Qb3 60.Ka1 Qa3 61.Kb1 Qb3 62.Kc1 Qc3 63.Kd1 Qd3 64.Ke1 Qc3 65.Kf2 Qd2 66.Kg3 Qd6 67.Kf3 Qd1 68.Ke3 Qc1 69.Kd4 Qd2 70.Kc4 Qc2 71.Kb4 Qd2 72.Kc5 Qa5 73.Kc6 Qb5 74.Kc7 Qe5 75.Kd7 Qf5 76.Kd8 Qe6=) 55.Kd3 (better is 55.Ne3 Qb2 56.Kf3 g4 57.Ng4+–) 55...Qb5+/– 56.Kd4 Qb2 57.Kc5 Qc2?? (57...Qc3 58.Kd6 Qa3 59.Kc7 Qa5 60.Qe4 Kf7+–) 58.Kd6 Qd3 (58...Kh6 59.Qc6 Qd2 60.Ke7+–) 59.Kc7 (59.Qd5 Qa3 60.Kc6 Qa4 61.Kb7 Qc2+–) 59...Qg3 60.Kc8 Qc3 61.Kb8 Qa5 62.Qe4 Kh6 63.Qc6 Qe5 64.Ka8 1–0. Bouvier,Clement (1725) – Hedjazian,Farhad (1680), Montigny le Bretonneux–B 7th, 2008.

8.Nf3 Nf6 9.a3 Be7 10.0–0 Nc6 11.d3 0–0 12.Nc3 a6 13.Na4 b5 14.Rc1 ba4 (better is 14...Rc8 15.Nc5 Nd7+=) 15.Rc6+/– Qd7 16.Qa4. Fournier,Frederic – Ikebroflovski (1635), queenalice.com, 2007.

8.Nf3= Nf6 9.Ne5 =.

6.c4 Nf6

7.a3 a5 8.cd5 ed5 9.f4 Be4 10.Be4 Ne4 11.Nf3 ab4 12.ab4 Ra1 13.Ba1 Be7 14.Bg7 Rg8 15.Bd4 Bh4 16.Kf1 Ng3 17.Kg2 Nh1 18.Nh4 Qh4 19.Qh1 f5 20.Nc3 c6 21.Bf2 Qh6 22.g5 Qd6 23.e3 Qb4 24.Qd1 Kd8 25.Qc2 Rf8 26.d3 Nd7 27.Ne2 Kc8 28.Nd4 c5 29.Ne6 Rf7 30.Qa2 Qb6 31.g6?? (31.Qa8!?) 31...hg6 32.Qd5 Rf6 33.Ng5 Qc6 34.Qc6 Rc6 35.Kf3 b5 36.d4 cd4 37.ed4 b4 38.d5 Rc3 39.Ke2 b3 40.Bd4 b2 0–1. marus1 – attack, internet, 2001.

7.a3 c6 8.cd5 ed5 9.d3 Be7 10.b5 (better is 10.g5!? Nh5 11.Nf3=+) 10...Qa5–/+ 11.Nc3 0–0 12.Nf3 (12.g5!? Nfd7 13.Nf3=+) 12...cb5–/+ 13.Qd2 Rd8 14.Nd4 b4 15.ab4 Qb4 16.Ra4 Qb6 17.g5 Nh5 (17...Bc5 18.e3 Bd4 19.Rd4 Nc6 20.gf6 Nd4 21.Nd5 Rd5 22.Bd5 Rd8=) 18.Nd5+= Rd5 (better is 18...Qd6!?+=) 19.Bd5+– Nd7 20.0–0 (20.Bc3 Qb1 21.Qd1 Qb6+–) 20...Bd6 (20...Bg5 21.Qg5 Qb2 22.Rc1+/–) 21.Nb3 Re8 22.Bd4 Qd8 (22...Qb5 23.Ra5 Qb4 24.Qb4 Bb4 25.Rb5+–) 23.Be3 (23.Ra7 Nf4 24.Bf3 Qg5 25.Kh1+/–) 23...Nb6 24.Bb6 Qb6 25.e3 Bb8 26.Rd4 Qc7 27.f4 Qc8 28.Bg2 (28.Rb4 Bd6 29.Rb7 Qh3+–) 28...Bf5 (28...Qe6 29.Nc5 Qe7 30.Nb7+–) 29.Rc1 Qe6 30.Nc5 Qg6 31.Kf2 h6 32.h4 hg5 33.hg5 f6 34.Bd5 Kh8 35.Rg1 a6 36.Qd1 Qh7 37.Bf7 Nf4? 38.Rf4 Bf4 39.Rh1 Bh3?? 40.Be8+– Qh4 41.Ke2 Bh2 42.Qa4 Qg3 43.Bf7 Qg2–/+ 44.Kd1 Bg4 45.Kc1 Qh1 46.Kb2 Be5 47.d4=+ Qg2 48.Ka3 b5 49.Qa5 b4 50.Qb4 Qg1? 51.Nb3+– (51...Bd6 52.Qd6 fg5 53.Qb8 Kh7 54.Qg8 Kh6 55.Qh8#; 51.de5 Qe3 52.Nb3 Qg5 53.Qf8 Kh7 54.Qg8 Kh6 55.Qh8#) 1–0. Andersson,Lars H – Eriksson,Mats, corr SSKK 1–423, 1988.

7.a3 c6 8.cd5 ed5 9.f4 h5 10.g5 Ne4 11.Qb3 Qb6 12.Qe3 (12.Qf3!?=+) 12...Qe3–/+ 13.de3 a5 14.ba5 Ng3 15.Rh2 Nf5 16.Kf2? (better is 16.e4!? Ne3 17.f5–/+) 16...Bc5–+ (< 16...Ra5 17.Nf3–/+) 17.Bc1 0–0 18.h4 (18.Nf3 Nd7–+) 18...Re8 19.Rh3 Ra5 20.Nc3 Nd7 21.Nf3?! (21.Bd2 Ra7 22.a4–+) 21...Ne3 22.Kg3 Ng2 23.Kg2 d4 24.Nd1 Re2 25.Kg3 Bc2 26.Rh1 (26.Nb2 d3–+) 26...Rb5 (26...b5!? 27.Rf1–+) 27.Nd2 Bd6 28.Ra2 Be4 29.Rf1 (29.Rg1 Bd5 30.Rb2 Rb2 31.Nb2 Re3 32.Kf2 Bf4–+) 29...Bd5 30.a4 Rc5 (< 30...Ba2 31.ab5 Bd5 32.Nf3–+) 31.Ba3 (31.Ra1–+) 31…Ba2 (32.Nf3 Rcc2–+) 0–1. thotares (1660) – pierre (2185), internet, 2007.

7.a3 c6 8.cd5 Nd5 9.h4 h5 10.g5 Nf4 11.Bf3 Bf5 (11...a5 12.Nh3 Nh3 13.Rh3 ab4 14.ab4 Ra1 15.Ba1=+) 12.Be5= Ng6 13.Bc3 Nd7 14.d4 a5 (14...Bg4 15.e4=) 15.ba5 e5 16.de5 Nge5 17.Nd2 Ra5 (17...Qc7 18.Be4 Be4 19.Ne4+=) 18.Ba5+= Qa5 19.Kf1 Be7 (19...f6 20.Nb3 Qc3 21.Rc1+=) 20.Kg2+/– Nf3 21.Ngf3 (21.Kf3?! f6 22.Kg2 A) 22...Ba3? 23.Nc4 Qc5 24.Na3+– (< 24.Ra3 0–0+–); B) 22...fg5 23.hg5 h4=) 21...0–0 22.e4 Bg6 23.Qc2 Qc7 24.Nd4 Ra8 25.Nf5 (25.f3 A) 25...Ra3?? 26.Nb5 Qe5 27.Na3+– (27.Ra3?! Qb5 28.Ra8 Kh7+–); B) 25...Bd6+/–) 25...Bf8 (25...Bf5 26.ef5 Qf4 27.Rab1+=) 26.Rhd1 (26.Rhb1 Nc5 27.Nb3 Qe5 28.Nc5 Bc5 29.Rb7 Bf2 30.Qf2 Qa1 31.Ne7 Kh8 32.Ng6 fg6=+) 26...Nc5 27.Nf1 b5 (27...Qf4 28.N1g3+=) 28.f3 (28.N1e3 Bf5 29.Nf5 g6 30.Nh6 Kh7+/–) 28...Qe5 (better is 28...Bf5!? 29.ef5 Qf4=) 29.N1g3 Ra4 30.Ra2 Rc4 (30...Bf5 31.Nf5 g6 32.Nh6 Kg7 33.Qc1+/–) 31.Qb2+/– Qc7 32.Rd4 Na4 33.Qd2 Rd4 34.Qd4 c5 35.Qd2 1–0. Sternik,Ryszard (1935) – Schulz,Hans_Juergen (2070), TSC, 2005.

7.a3 Be4 8.f3 (8.Be4!? Ne4 9.d3=) 8...Bg6=+ 9.Qb3 Be7 10.Nc3 c6 11.e4 de4 12.Ne4 Ne4 13.fe4 Bh4 14.Kf1? (14.Kd1 Bf6=+) 14...Bf6 (better is 14...Qd2!? 15.Ne2 f6–/+) 15.Ne2=+ Bb2 16.Qb2 0–0 17.d4 f5 18.gf5 ef5 19.e5 f4 20.Bf3 Nd7 21.Qb3 Kh8 (21...Bf7 22.Nf4 Qg5 23.Nd3=) 22.Kg2 Qg5 23.Kh2 Qh4 24.Rhg1 (better is 24.Rhf1+=) 24...c5?? (better is 24...Bf5 25.Bg2 Rae8=) 25.Rg4 (25.bc5 Rab8+–) 25...Qf2 26.Rg2 Qe3 27.Qe3 fe3 (28.Bb7 cd4 29.Ba8 Ra8+–). Magicmove3 – GoodKnight11, caissa.com, 2007.

7.a3 Be7 8.d3= 0–0 9.Nc3 c6 10.Nf3 a5 (10...dc4 11.dc4 a5 12.b5=) 11.b5 dc4 12.dc4 Qc7 13.Qc1 Nbd7 (13...cb5 14.cb5 Nfd7 15.h4+=) 14.0–0 (14.Nh4 Rad8=) 14...Rfd8 15.Rd1 Nc5 (15...Nb6 16.bc6 Rd1 17.Qd1 Nc4 18.cb7=+) 16.Rd8 (16.Qe3 Bc2 17.Rd2 Rd2 18.Nd2 Rd8=+) 16...Rd8 17.Qe3 Nfe4 (17...Ncd7 18.bc6 Bc5 19.Nb5=) 18.Ne4 Be4 (18...Ne4 19.Be5 Qd7 20.Nd4=) 19.Bd4=+ Bf3 20.Be5 (20.Bf3 Rd4 21.Qd4 Bf6 22.Qc5 Ba1+=) 20...Qd7–/+ 21.Bf3 cb5 22.cb5 Qb5 (22...f6 23.Bg3=+) 23.Qc3 Na4 24.Qc7 Rd7 25.Qc8 Bf8 26.Bc7 b6 (26...Nc5 27.Rc1=+) 27.Kg2 Rd4 28.Rc1 Qg5 (28...Rc4 29.Rd1 Qc5 30.Rd7=+) 29.Rc2 Qe7 30.e3 Rd7 31.e4 (31.Rc4 b5 32.Rc6 b4 33.Ba5 ba3=) 31...e5 (31...Rd3!? 32.e5 Qa3=+ (32...Ra3?? 33.Bd6 Qd6 34.ed6+–)) 32.Be2 Rd4 33.Rc6 (33.f3 f6=+ (< 33...Qa3 34.Be5 Rd6 35.Bd6 Qd6 36.Bb5+=)) 33…Rd7 (better is 33...Rd2=+) ½–½. Maarten – Major Pronin, itsyourturn.com, 2001.

7.Qa4 c6 8.c5 a5 9.d4 b5 10.Qa3 Nbd7 11.Nd2 ab4 12.Qb4 h5 (12...e5 13.Ngf3–/+) 13.gh5 (13.g5 Ne4 14.Ne4 de4=+) 13...Nh5 14.a4 Nf4 15.Bf3 ba4 16.Ra4 e5 17.Bg4 f5 18.Ra8 Qa8 19.de5 Ne6 (19...Ng2 20.Kf1 Nh4 21.Bf3 Nc5 22.Qa3–/+) 20.Bf3 Bc5 (< 20...Nec5 21.Qd4–/+) 21.Qb3 0–0 22.Qd1 (22.Qc3 Rb8 23.Bc1 Qa4–+) 22…Rb8 (23.Bc1 Ne5–+) 0–1. woschkat (2170) – awacs (1950), net–chess.com, 2001.

7.Qa4 c6 8.c5 Nbd7 9.d4 h5 10.g5 Ne4 11.h4 a5 12.b5 Be7 13.Nc3 (13...cb5 14.Qb5 Nc3 15.Bc3=). Plock,Joerg – Kanios,Michael, 10 years 4a LSV M/V, 1999.

7.Qa4 c6 8.d3 dc4 9.dc4 a5 10.Bc3 (10.a3 Nbd7 11.Qb3 Qb6 12.Bf6 Nf6–/+) 10...Nbd7–/+ 11.Nf3? (better is 11.ba5!? Nc5 12.Qd1 Qd1 13.Kd1–/+) 11...Ne4 (11...ab4 12.Bf6 Nf6 13.Qb3–+) 12.0–0?? (12.Qb3–+) 12...ab4 (13.Qb3 Nc3 14.Nc3 Ra3–+ (< 14...bc3 15.Qb7 c2 16.Nd4–+)) 0–1. GmLencioni – pierre (2045), internet, 2006.

7.Qb3 c6 8.Nf3 dc4 9.Qc4 Qd5 10.Qd5 Nd5 11.a3. DaveMC – hooks, ChessWorld.net, 2006.

7.Qb3 c6 8.Nf3 dc4 9.Qc4 Bd6 10.Ne5 =.

7.Qb3 c6 8.Nf3 Bd6 9.d3 Nbd7 (9...dc4 10.Qc4 0–0 11.Be5=+) 10.Nbd2 Qc7 (10...0–0 11.0–0=+) 11.Rc1 (11.g5 Nh5=) 11...Bf4 (11...0–0 12.g5 Nh5 13.Qc3=) 12.e3 Be5 (12...Ne5 13.Ne5 Be5 14.g5 Bb2 15.Qb2+= (15.gf6?? Bc1 16.Nf3 gf6–+)) 13.d4 (13.g5 dc4 14.Nc4 Bb2 15.Qb2 Nh5+=) 13...Bd6=+ 14.b5 Ne4 (14...0–0 15.Ba3=+) 15.Ba3= 0–0 16.cd5 (16.Bd6 Qd6 (16...Nd6 17.cd5 c5 18.de6 fe6 19.Ng5+–) 17.h4 c5=) 16...ed5 17.0–0 (17.Bd6 Qd6 (< 17...Nd6 18.bc6 bc6 19.Qd5+/–) 18.bc6 bc6 19.Ne4 de4+=) 17...Rfc8 (17...Rfe8 18.Bd6 Qd6 19.Ne4 Be4 20.bc6 bc6 21.Qc3=) 18.Ne4 Be4 19.Nd2 (19.Bd6 Qd6 20.bc6 bc6=) 19...Bg2 20.Kg2 Rf8 (20...Rab8 21.Bd6 Qd6 22.Qa4=) 21.Rc3 (21.Bd6 Qd6 22.bc6 bc6=) 21...f5 22.bc6 (22.gf5 Rf5 23.bc6 bc6 24.Bd6 Qd6+=) 22...bc6 23.Rfc1 (23.gf5 Rab8 24.Qc2 Ba3 25.Ra3 Nb6+=) 23...Ba3 24.Qa3 fg4 25.hg4 (25.Rc6 gh3 26.Kh3 Qd8=) 25...Rf6 26.Qb3 Nb6 27.f4 Re8=+ 28.Qd1 Rfe6 29.Qf3 Qe7 30.Kf2 Qb4=+ 31.R1c2 Qe7 32.Qg3 c5 33.dc5 d4?? 34.ed4+/– Nd5 35.Rb3 Nf4 36.Qf4 Rf6 37.Qf6 Qf6= 38.Nf3 Qg6 39.Rcb2 Qg4 40.Rb8 Qe4 41.Re8+= Qe8 42.c6 Qd8 43.Rc2+= g5 44.c7 Qc8 45.d5 g4 46.d6 Kg7? 47.d7! Qf8 48.Rc3 (48...Qf3 49.Rf3 gf3 50.Kf3+–) 1–0. Haessler,Carl (2240) – Heywood,Bill, NWC op, 1993.

7.Qb3 Nc6 8.a3 Be4 9.Be4 de4 10.Qc2 (10.g5 Nh5 11.Nc3 Be7=) 10...h6 (10...Nd4 11.Qa4 c6 12.g5=+) 11.Ra2 (11.Bf6 Qf6 12.Nc3 e3 13.de3 h5=) 11...Be7 (11...e5!?=+) 12.Bf6+= Bf6 13.Qe4 h5 14.Nf3 hg4 15.Qg4 Qd6 16.d3 (16.Nc3 Ne5 17.Qe4 0–0–0+=) 16...0–0–0= 17.Nbd2 Bc3 18.Qg3 Ne5 (18...Qe7 19.Rc2 Qf6 20.Kd1 Bd2 21.Kd2=) 19.Ne5 (19.Kd1 Qc6 20.b5 Qc5=) 19...Be5= 20.Qf3 f5 21.Nb3 Kb8 (21...g5 22.Qe3 Bc3 23.Nd2=) 22.h4 (22.Nc5 c6=) 22...c6 (22...Bc3 23.Kd1=) 23.h5 Qe7 (23...Rh6 24.b5=) 24.Qe3 Qf6 25.f4 (25.b5 Bc3 26.Kd1 e5+=) 25...Bc3= 26.Kd1 e5 27.fe5 Be5 28.Qf3 f4 29.Qg4 (29.Nc5 Rh6=) 29...Qf7 30.Rd2 ½–½. Woelfelschneider,Peter – Herrchen, TRS, 2000.

7.Qb3 Nbd7 8.d3 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 dc4 12.dc4 c5 13.b5 Ne4 14.Qa2 f6 15.h4 Nd6 16.Nd2 e5 17.Qa7 Qc8 18.g5 Be7 19.h5 Bf7 20.g6 Be6 (20...hg6? 21.hg6 Rh1 22.gf7 Kf7 23.Bh1+–; worse is 20...Bc4 21.Nc4 Nc4 22.h6+/– (worse is 22.Qb7 Qb7 23.Bb7 Nd6–/+)) 21.gh7 Rh7 (worse is 21...Nc4 22.Bb7 (worse is 22.Qb7 Qb7 23.Bb7 Na3–/+) 22...Qc7 23.Qa8 Bd8 24.Nc4 Bc4 25.Bc6=) 22.Bc3 ½–½. Tritt,Maciej (2185) – Carr,James T (1925), CFriend AC–2005–Q–00004 email, 2005.

7.Qb3 Nbd7 8.cd5= Nd5 9.Bd5 ed5 10.Qd5 h5 (10...Qe7!? 11.Qb3 h5 12.gh5 Rh5=) 11.Qb7+= Rb8 12.Qa7 Rb4 13.Qe3 Be7 14.Bg7 Qa8?? (14...Rg8 15.a3 Rb1 16.Rb1 Bb1–/+) 15.Qf3?? (15.f3 Rg8 16.Be5 Ne5 17.Qe5 Bb1 18.a3=+) 15…Be4 (16.Bh8 Bf3 17.Nf3 Qa2+=). Mertens,Sylvia – Dietrich,Udo, T15–08.04 ETC, 2003.

7.d3 Bb4–/+ 8.Nd2 (8.Bc3 Bc3 9.Nc3 c6–/+) 8...Nbd7 (8...c6 9.a3 Ba5 10.cd5 ed5 11.Ngf3–/+) 9.Ngf3 (9.Rb1 dc4 10.Bf6 Bd2 11.Qd2 Qf6–/+) 9...0–0 (9...dc4 10.dc4 0–0 11.a3–/+) 10.0–0 (10.Rb1 Rb8–/+) 10...Re8 (10...dc4 11.Nc4 Nd5 12.Rb1–/+) 11.Rb1 Bd2 (11...a5 12.a3 Bd6 13.Qc2–/+) 12.Qd2 (12.Nd2 Rb8 13.f4=+) 12...c5 (better is 12...dc4!? 13.Bf6 Nf6 14.Rb7 cd3 15.ed3 Qd6–/+) 13.Bf6= Nf6 14.Rb7 dc4 (14...Qd6 15.Qc2=) 15.dc4 Be4 16.Qd8 Red8 (< 16...Rad8 17.Ra7 Ra8 18.Ra8 Ra8 19.Ra1+/–) 17.Rc7 Rdc8 18.Rc8 Rc8 19.Ne5 (19.Rd1 Bf3 20.Bf3 g5=) 19...Rd8 (19...Bg2 20.Kg2 Ne4 21.Rb1=) 20.Be4 (20.g5 Bg2 21.Kg2 Ne4=) 20...Ne4= 21.Rb1 f6 22.Nd3 Nc3 23.Rb2 Ne2–/+ 24.Re2 Rd3 25.Re6 Rh3 26.Rc6 Ra3 27.Rc5 Ra2 28.Rc7 a5 29.c5 a4 30.c6 Rc2 31.Ra7 Rc6 32.Ra4 Kf7 33.f4 Kg6 34.Kg2 h5 35.gh5 Kh5 36.Kf3 f5 37.Ra7 Rc3–+ 38.Ke2 g6 39.Ra4 Kg4 40.Ra6 Kf4 41.Rg6 Rg3 42.Ra6 Rb3 43.Ra1 Kg4 44.Rf1 f4 45.Rg1 Rg3 46.Rf1? Rg2 47.Ke1 f3 48.Kd1 Kg3 49.Ke1 Re2 50.Kd1 Kg2 (51.Re1 Re1 52.Ke1 f2 53.Kd2 Kf3 54.Kd3 f1Q 55.Kc3 Ke4 56.Kc2 Qd3 57.Kb2 Kd4 58.Ka2 Kc3 59.Ka1 Kc2 60.Ka2 Qa6#) 0–1. Bailen Canales,Francisco – Anton Gomez,Benjamin, UECC, 1998.

7.cd5 ed5 8.a3 a5 9.b5 =+.

7.cd5 ed5 8.a3 c5 9.bc5 Bc5 10.g5 –/+.

7.cd5 ed5 8.a3 c6 9.d3 Be7 (9...Bd6 10.Nf3=+) 10.e3 0–0 (10...h6 11.Nc3=+) 11.f4 (11.h4 h5 12.gh5 Bh5=) 11...h6=+ 12.Qb3 (12.f5 Bh7=+) 12...Qb6–/+ 13.d4 (13.Ke2 a5–/+) 13...a5 14.f5 Bh7 15.b5 a4 (15...Re8 16.Nc3–/+) 16.Qd3 Nbd7 (16...Ne4 17.Be4 de4 18.Qe4 Qb5 19.Qc2=+) 17.Nc3=+ Rfe8 18.Nge2 Red8 (18...Qa5 19.0–0=+) 19.0–0 Re8 20.Nf4 (20.Rab1 Qd8=) 20...Bd6 21.Rfc1 (21.Rab1 Qc7=) 21...Bc7 22.Rc2 Re7 23.Rac1 Bd6 24.Qd2 Ree8 25.Qf2 Nb8 26.Qf3 Qa5 27.bc6 bc6 28.Rb1 Qa7=+ 29.Nce2 Qe7 30.Rc3 Ra5 31.Rd3 Nbd7 32.Nc3 Nb6–/+ 33.Bc1 Nc4 34.Ra1 Raa8 35.Qd1 Qa7 36.Ra2 Qa6 37.Ra1 Qa5 38.Ra2 Qa7 39.Ra1 Qa6 40.Ra2 Be7 41.Qf3 Rab8 42.Qd1 Nb6 43.Rb2 Bd6=+ 44.Qf1 Rb7 45.Rb1 Rbe7 46.Nce2 Nc4 47.Kf2 Qa5 48.Ra1 Bc7 49.Rb1 g6 50.Nc3 gf5 51.Nh5 Nh5 52.gh5 f4 53.ef4 Re1! 54.Rg3 Kf8 55.Qe1 Re1 56.Ke1 Bb1 57.Kd1 Qb6 58.Ne2 Be4 59.Be4 de4 60.Ke1 Qa5 61.Kf2 Qd5 62.Ke1 Qh5 63.Kf2 c5 64.Nc3 cd4 65.Ne4 Qd1 66.Rg1 Qc2 67.Kf3 Qd3 68.Kf2 Qe4 69.Re1 Qc2 70.Kf3 Qc3 71.Kf2 Qc2 72.Kf3 Nd2 73.Bd2 Qd2 74.Re5 Be5 75.fe5 Qe3 76.Kg2 0–1. Bonetti,Shane – Celes (2135), ICC, 2002.

7.cd5 ed5 8.a3 Be7 9.d3 0–0 10.f4 h6 11.e3 c5 12.f5 Bh7 13.bc5 Bc5 14.Bf6 (14.Qb3 Be3 15.Nc3 Nc6 16.Nd5 Nd5 17.Bd5 Rc8+=) 14...Qf6–/+ 15.d4 Re8 16.Kf2 Nc6 17.Ne2 Qh4 18.Kf1 Bd6 19.Qd3 Ne7 20.Nbc3 h5 21.Bf3 Qg5 22.Kf2 Qh4 23.Kg2 g5 (better is 23...Rac8!?=) 24.Nd5 Nd5 25.Bd5 hg4 26.e4 (26.Bb7 Rab8 27.Bc6 gh3 28.Kf1 Red8+=) 26...g3 27.e5 Bc7 28.Ng3 Red8 29.Qc4 (29.Bb7 Rd4 30.Qe3 Rad8–/+) 29...Be5? (better is 29...Rac8 30.Bf7 Kf8+–) 30.de5 (30.Bf7?! Kf8 31.de5 Rd2 32.Ne2 Bf5+–) 30...Rac8 31.Qh4 gh4 32.Ne4 (32.Bb7 Rc2 33.Kf3 Rc3 34.Kf4 hg3+–) 32...Bf5 33.Nd6 Rc2 34.Kf3 Kf8 35.Kf4 (worse is 35.Nf5 Rd5 36.Rhe1 Rd3 37.Kg4 Rc4 38.Kg5 Rh3+–) 35...Rf2 36.Ke3 Rc2 37.Raf1 (37.Nf5?! Rd5 38.Rac1 Re5 39.Kf4 Rec5 40.Rc2 Rc2+–; worse is 37.Bb7 Be6+–) 37...Rc3 38.Kd4 Rd3 39.Kc4 Bg6 (39...Rd5 40.Kd5 (40.Nf5?! Re5 41.Rf4 b5 42.Kb4 Rd3+–; 40.Rf5?! R8d6 41.ed6 Rf5+=) 40...Be6 41.Ke4+–) 40.Bf7 b5 41.Kb5 Kg7 42.Bg6 (42.Bg6 Kg6 43.Rhg1 Rg3 44.Rg3 hg3 45.Rf3 Rb8 46.Kc4+–) 1–0. Woschkat,Karl Heinz – Timmons,Art, Compuserve Fall95, 1995.

7.cd5 Nd5 8.a3 c5 (8...c6 9.Nf3=+) 9.Nc3 (9.bc5 Bc5 10.Bg7 Rg8+=) 9...Nc3 (9...cb4 10.Nd5 ed5 11.ab4=+) 10.dc3 (10.Bc3 Qb6=) 10...Qc7 (10...Qb6 11.Qa4 Nd7 12.Nf3=) 11.e3 (11.Qa4 Nd7=) 11...Nc6=+ 12.Ne2 Rb8 (12...Bd6 13.Qa4=+) 13.Nf4= Bd6 (13...Ne5 14.Ng6 hg6 15.f4=) 14.Ng6 hg6 15.Qa4 (15.Qe2!?=) 15...b5=+ 16.Qb3 (16.Qc2 Ne5=+) 16...Ne5 (17.Be4 Be7=+). Sawamura,Tetsushi – Caliskan,Ismail, Afroasian–ch7 prel email, 2004.

7.cd5 Nd5 8.b5 Bb4 (better is 8...c6!?=+) 9.Bg7+= Rg8 10.Bc3 Bc3 (10...Bc5!?+=) 11.Nc3+/– c6 12.a4 (12.bc6 bc6 13.Nf3 Nf4+/–) 12...Nf4 13.Bf3 a6 14.h4 h5 15.g5 (15.bc6 Nc6 16.gh5 Bf5 17.Bc6 bc6+=) 15...ab5 (15...f6 16.gf6 Qf6 17.bc6 Nc6 18.Rc1+=) 16.ab5+/– Ra1 17.Qa1 cb5 18.Nb5 Nc6 19.Bc6 (19.Qa3 Qb6 20.Qa4 e5+/–) 19...bc6 20.Nd4 (20.Nc3 Ng2 21.Kd1 Rf8+/–) 20...c5 (20...Be4 21.f3 e5 22.Nb3+–) 21.Qa4 (21.Ndf3 Qb6+/–) 21...Qd7 (21...Kf8 22.Nc6 Ng2 23.Kf1+–) 22.Nb5 (22.Qa8!? Qd8 23.Qc6 Qd7 24.Qc5+–) 22...Ke7 23.Qa7?? (better is 23.Qf4 Qb5 24.Qc7 Kf8 25.f4+=) 23...Qa7–/+ 24.Na7 Ra8 25.e3 (25.Nc6 Kd6 26.d3 Kc6–+) 25...Nd3 (25...Ra7?! 26.ef4 Bd3 27.f3=+) 26.Ke2 Be4 (better is 26...Ra7 27.Nf3 Ra2–+) 27.f3=+ Bg6 28.Nb5 Ra1 29.Nc3?? (better is 29.e4 c4 30.Ke3=+) 29…Re1. Trkn – mijlov, itsyourturn.com, 2000.

6.d3 Bb4

7.c3 A) 7...Bc5 8.c4 A1) 8...Bb4 9.Nd2 Nf6 10.a3 Be7 11.cd5 ed5 12.g5=; A2) 8...Nf6 9.Qb3 Nc6 10.cd5 Nd5 11.h4 Bb4 12.Kd1=+; B) 7...Ba5 B1) 8.h4 h5 9.Qb3 hg4 10.Qb7 Nd7 11.Qa6 Bb6 12.h5–+; B2) 8.Nf3 B21) 8...Ne7 9.Nbd2 Nd7 10.Rb1 e5 11.0–0–/+ c6 12.c4–/+; B22) 8...Nd7 9.Nbd2 Ne7 10.0–0 0–0 11.c4 c6 12.Qc2–/+; B3) 8.Nd2 c6 9.Nb3 Bb6 10.e3 Nd7 11.c4 Ngf6 12.g5–/+; B4) 8.Qb3 Bb6 9.c4 Qh4 10.d4 dc4 11.Qc4 c6 12.Nd2–/+.

7.Nd2 f6 8.a3 Bc5 9.c4 c6 10.Qb3 b5 11.cb5 =+.

7.Nd2 Nf6 8.c3 Bd6 9.Ngf3 Nc6 10.0–0 h6 11.c4 0–0 12.cd5 ed5 13.Rb1 Re8 14.Nb3 Qe7 15.e3 Nb4 16.Nc1 c5 17.a3 Nc6 18.Qd2 Rab8 19.Bf6 Qf6 20.Nb3 c4 21.Nbd4 Bd3 22.Nc6 bc6 23.Rb8 Rb8 24.Rc1 Ba3 25.Re1 Bb4 26.Qa2 Be1 27.Ne1 Rb2 28.Qa7 Qf2 29.Kh2 Qe1 30.Qa8 Kh7 31.Qc6 Rg2! 32.Kg2 Be4 33.Kh2 Qh1 34.Kg3 Qf3 35.Kh4 g5 (36.Kh5 Qh3#) 0–1. moonedu2 – pierre, internet, 2008.

6.Nf3 Bb4??

7.Bg7 Nc6 8.Bh8 f6 9.c3 Ba5 10.Qb3 Bb6 11.c4 Nd4 12.Nd4 Bd4 13.Nc3 Nh6 (13...c6 14.cd5 ed5 15.e3 Bc3 16.Qc3+–) 14.cd5 Nf7 15.Qa4 Kf8 (15...c6 16.dc6 Kf8 17.c7 Qc7 18.Qd4 Nh8 19.Qf6 Nf7 20.Qe6+–) 16.Qd4 Nh8 17.Qb4 Kg7 18.de6 (better is 18.Qb7 Rb8 19.Qa7 Bf7 20.de6 Be6+–) 18...a5 (18...Rb8 19.Qa4 a6 20.Qd7 Qd7 21.ed7+–) 19.Qb7 Rb8 20.e7! Qe8 (20...Qe7 21.Nd5 Double attack (21.Qb8 Deflection; 21.Nd5 Decoy)) 21.Qc7 Rc8 22.Qd6 Nf7 23.Qa6 Ne5 24.Nd5 Rc6 25.Qa5 Nc4 (25...Rc8 26.Qb6 Nd7 27.Qd6+–) 26.Qd8 Rd6 27.Nc7 Rd8 28.ed8Q Qe5 29.Rc1 (better is 29.f4 Qd6 30.Qd6 Nd6+–) 29...Nb2 30.d4 Qa5 31.Kf1 Qd2 (31...Qa2 32.Qe7 Qf7 33.Ne6 Kg8 34.Rc8 Qe8 35.Qg7) 32.Ne6 Kf7 33.Rc7 Ke6 1–0. Woschkat,Karl Heinz – Gorman,Andy, IECG C2.1998.0.126, 1998.

7.Bg7 Be4 8.Bh8 +–.

7.Bg7+– Nf6 8.Bh8 Kd7 9.Bg7 +–.

7.Bg7 Nf6 8.Bh8 Nbd7 9.c3 Bd6 10.d3 +–.

7.Bg7 Nf6 8.Bh8 Ne4 9.c3 (9.h4 f6+–) 9...Bc5 10.Bd4 Bd6 (10...Nc6 11.Bc5 Nc5 12.d3+–) 11.d3 Nf6 (11...c5 12.Be3 Nf6 13.Qb3+–) 12.Nbd2 (12.Qb3 b6+–) 12...Nbd7 13.Rb1 b6 (13...c5 14.Be3 b6 15.g5+–) 14.0–0 (14.Qa4!? h6+–) 14...h5 (14...e5 15.Be3+–) 15.g5 Nh7 16.h4 c5 (16...e5 17.Be3+–) 17.Be3 f5 18.Nb3 c4 19.Nbd4 e5 20.Nb5 Nc5 21.Bc5 Bc5 22.Ne5 Nf8 23.Bd5! a6 24.Ba8 ab5 25.d4 Be7 26.Bc6 (26...Nd7 27.Bd7 Kf8 28.Ng6 Kg7 29.Ne5+–) 1–0. coloplayah (2125) – wbartier (2050), net–chess.com, 2006.

6.Nf3 Nd7

7.0–0 Be4 8.Nc3 Bf3 9.ef3 =+.

7.a3 Ngf6 8.0–0 c5 9.bc5 =+.

7.a3 h6 8.d4 Ngf6 9.Nbd2 Ne4 10.c4 c6 11.Rc1 Be7 12.Qb3 0–0 13.0–0 a6 14.Ne4 Be4 15.Nd2 Bg2 16.Kg2 Nf6 17.f3 dc4 18.Nc4 (18.Qc4? Nd5 19.Qb3 Nf4 20.Kf2 Bh4 21.Ke3 Qg5–+) 18...Nd5 19.e3 Bd6 20.Rc2 Bc7 21.f4 f5 22.gf5 ef5 23.Ne5 Be5 24.de5 Qe8 25.Rf3 Qe6 26.Rg3 Kh7 27.Kh1 Rg8 28.Rcg2 g6 29.Qc2 Rad8 30.Bd4? Rd7 ½–½. Skrzypczak,Michal (1980) – Mikolajczyk,Mariusz (1955), Wielkopolska Liga Seniorow Poland, 2010.

7.Bc3 Ngf6 8.d3 Bd6 9.Nbd2 =+.

7.Bd4 Ngf6 8.a3 Bd6 9.d3 =+.

7.Rf1 Ngf6 8.a3 Bd6 9.d3 =+.

7.h4 Ngf6 8.h5 Be4 9.g5 =.

6.Nf3 Nf6

7.0–0 Bb4 8.Bc3 (8.c4 0–0–/+ (8...dc4?! 9.Qa4 Nc6 10.Ne5=)) 8...Nc6 9.Nh4 Bc3 10.Nc3 d4 11.Bc6 (11.Ng6!? hg6 12.Na4–/+) 11…bc6–+ (12.Na4 Ng4–+) 0–1. woschkat (2205) – fightinbluehen (2000), net–chess.com, 2001.

7.a3 c5 8.bc5 Bc5 9.d4 Bd6 10.0–0 (10.Nbd2 Qb6 11.Qc1 Nc6–/+) 10...0–0 11.Nbd2 Qb6 12.Nb3 (12.Qc1 Rc8 13.c3 Qc7–/+) 12...Rc8 13.c3 (13.Rc1 Be4–/+) 13...Nc6 14.Nh4 (14.Rc1 Qb5–+) 14...Nd4! 15.cd4 (15.Qd4 Qb3) 15...Bc2 16.Qd2 Qb3 17.Bc1 Rc3 (18.Nf3 Rac8–+) 0–1. KHW – Eralos, ChessWorld.net, 2003.

7.a3 c5 8.g5 Nh5 9.bc5 =+.

7.a3 Bd6 8.0–0 c6 9.d3 Bc7 10.Nbd2 Qd6 11.Be5 Qd7 12.Bc7 Qc7 13.Rc1 Nbd7 14.c4 Qd8 15.cd5 cd5 16.Qa4 0–0 17.Rc3 Nb6 18.Qb3 Rc8 19.Rfc1 Rc3 20.Rc3 Qd7 21.Nd4 Rc8 22.Rc8 Qc8 23.Qc2 Qc2 24.Nc2 Nfd7 25.Nb3 (25.f4+=) 25...f6 (better is 25...Na4!?=) 26.Na5+/– f5 27.Nb7 fg4 28.hg4 Ne5 29.Nc5 Kf7 30.f3 Ke7 31.e4 de4 32.de4 Be8 33.Kf2 Nbc4 34.Bf1 Nb6 35.Ke3 Ba4 36.Na4 Na4 37.Be2 Nc3 38.f4 Ne2+/– 39.fe5 Nc3 40.Kd4 Ne2 41.Kd3 Nf4 42.Ke3 Ng6 43.Kd4 Kd7 44.a4 Kc6 45.Ne3 a6 46.Nc4 Nf4 47.Ke3 Ng6 48.Nd6 Ne7? 49.Ne8+/– g6 50.Nf6 h6+/– 51.Kf4 Kc7 52.Ne8 Kd8 53.Nd6+/– Nc6 54.b5 ab5 55.ab5 Nd4? 56.b6 Kd7 57.b7 Kc7+= 58.Nf7 h5? 59.gh5+– gh5 60.Kg5 Kb7+/– 61.Kh5 Kc7 62.Kg5 Kd7 63.Kf6 Nc6 64.Ng5 Nd4 65.Kf7 Nc6 66.Ne6 Ne5= 67.Kf6 Nc6 68.Nc5 Kd6 69.Nd3 Kd7 70.Nf4 Ke8 71.Ke6 Nd8? 72.Kd6 Nf7= 73.Kc5 Ke7 74.Nd5 Ke6 75.Kd4 Nd8 76.Nf4 Ke7 77.Kd5+/– Nf7 78.Ng6 Kf6 79.Nf4 Ke7= 80.Nd3 Kf6 81.Nc5 Ke7 82.Ne6 Kf6 83.Nf4 Ke7= ½–½. Fournier,Frederic – fran008 (1610), Active, 2008.

7.a3 Nbd7 8.d3 c5 9.c3 Bd6 10.Nbd2 0–0 11.0–0 Rc8 12.c4 cb4 13.ab4 Bb4 14.Ra7 Qb6 15.Qa1 Bc5 16.Ra2 Rfe8 17.Ne5 Ne5 18.Be5 Be7? (better is 18...Nd7!?=) 19.Rb1+/– Qd8 20.Rb7 dc4 21.Nc4 Bf8? (better is 21...Bc5+–) 22.Nb6 Rc5 (22...Bd6 23.Nc8 Be5 24.Qe5 Qc8+–) 23.Ra8 Qe7 (23...Qa8 24.Na8 (24.Qa8 Ra8 25.Bf6 Rc1 26.Bf1 Rb1–/+) 24...Re5 25.Qe5 Ra8 26.Rf7 Ra1 27.Qa1 Kf7 28.g5+–) 24.Re7 (24.Re7 Ra8 25.Qa8 Re5 26.Nd7 Nd7 27.Rd7+–) 1–0. usingprogram (2000) – skogsrune, kurnik, 2013.

7.b5 a6 A) 8.ba6 A1) 8...Ra6 9.Ne5 c6 10.Ng6 hg6 11.e3 b5 12.f4=+; A2) 8...Na6 9.Ne5 Bd6 10.Ng6 hg6 11.c4 c6 12.d3=+; B) 8.a4 B1) 8...Bc5 9.d3 0–0 10.Nbd2 Nbd7 11.0–0 ab5 12.ab5=; B2) 8...Nbd7 9.d3 Be7 10.0–0 0–0 11.Nbd2 ab5 12.ab5=; B3) 8...Bd6 9.d3 0–0 10.0–0 Nbd7 11.Nbd2 ab5 12.ab5=+.

7.b5 Bc5 A) 8.0–0 A1) 8...a6 9.a4 0–0 10.d3 ab5 11.ab5 Ra1 12.Ba1=+; A2) 8...c6 9.a4 0–0 10.d3 a6 11.Nbd2 ab5 12.ab5=; A3) 8...0–0 9.d3 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1=+; B) 8.Nc3 B1) 8...a6 9.0–0 0–0 10.ba6 Na6 11.Ne5 Be4 12.Ne4=+; B2) 8...c6 9.0–0 0–0 10.Ne5 cb5 11.Ng6 fg6 12.d4=+; B3) 8...0–0 9.d3 a6 10.g5 Nfd7 11.a4 c6 12.0–0=+; C) 8.d3 c6 9.g5 Nh5 10.bc6 Nc6 11.e3 Rc8 12.Nbd2=+; D) 8.Ne5 Be4 9.f3 Nfd7 10.h4 Ne5 11.Be5 f6 12.Bg3=.

7.b5 c6 8.a4 h5 (8...Bc5 9.0–0 0–0 10.d3 a6 11.Nbd2 ab5 12.ab5=; 8...Bd6 9.d3 (9.0–0 a6 10.d3 ab5 11.ab5 Ra1 12.Ba1=+) 9...0–0 10.Nbd2 a6 11.0–0 ab5 12.ab5=+) 9.g5 (9.Ne5 hg4 10.Ng6 fg6 11.e3 gh3 12.Rh3=) 9...Ne4 10.h4 Bc5 (10...cb5 11.ab5 Qb6 12.Bd4=+) 11.e3 0–0 12.Nc3 (12.Ne5=) 12...Nd7 13.0–0 Qc7 14.Ne4 de4 15.Nd4 Ne5 16.Nb3 Ng4 17.Re1? (better is 17.f4!? ef3 18.Rf3 cb5 19.Nc5 Qc5 20.ab5 Bc2 21.Qe2–/+) 17...Qh2–+ 18.Kf1 Qh4 19.Qe2 Nh2 20.Kg1 Nf3! 21.Bf3 (21.Kf1 Ne1 22.Ke1 Qg5 23.Nc5 Qc5 24.Ba3–+) 21...ef3 22.Qf3 Be4 (23.Qe4 Qe4 24.Nc5 Qg4 25.Kf1 Rfc8 26.Nb7 cb5–+; 22...Qg5?! 23.Qg2 Qg2 24.Kg2–+) 0–1. grimstad – michaelbuss, ChessWorld.net, 2005.

7.b5 c6 8.Nc3 A) 8...Bc5 9.e3 0–0 10.Ne5 cb5 11.Nb5 Nbd7 12.Ng6=+; B) 8...d4 9.Nb1 Bc5 10.Ba3 Ba3 11.Na3 0–0 12.Rb1=+.

7.b5 c6 8.bc6 Nc6 9.0–0 h5 10.Bf6 (better is 10.g5 Ne4 11.h4+=) 10...Qf6–+ 11.Nc3 (11.gh5 Rh5 12.c3 Bf5–+) 11...hg4 12.hg4 0–0–0 Black intends d4 (better is 12...Qf4!? 13.e3 Qg4 14.Rb1–+) 13.e3 e5 14.Rb1 e4 15.Ne1 (15.Nd4 Nd4 16.ed4 Bd6–+) 15...d4 16.Ne4 Be4 17.Be4 (17.f3 Bd5 18.Nd3–+) 17...Qh6 18.Bf5 Rd7! 19.Bh7 (19.Bd7 Kd8 Mate attack) 19...Qh7 20.Kg2 Qh3 21.Kg1 Qh2 0–1. glennobrien (1990) – marekt (2200), gameknot.com, 2016.

7.b5 Bd6 A) 8.Ne5 A1) 8...Be4 9.f3 Bg6 10.h4 Nfd7 11.Nd7 Bg3 12.Kf1 Qd7+/–; A2) 8...a6 9.Ng6 hg6 10.Nc3 Nbd7 11.ba6 Ra6 12.e4=; A3) 8...Be5 9.Be5 0–0 10.d3 Nbd7 11.Bb2 c6 12.a4=+; B) 8.Nc3 B1) 8...a6 9.g5 Nh5 10.e3 0–0 11.d3 Nd7 12.ba6=+; B2) 8...0–0 9.0–0 Nbd7 10.d3 a6 11.a4 Ne5 12.e3=+; B3) 8...h6 9.0–0 0–0 10.a4 Nbd7 11.d3 c5 12.a5=+; C) 8.0–0 C1) 8...a6 9.a4 0–0 10.d3 Nbd7 11.Nbd2 ab5 12.ab5=+; C2) 8...0–0 9.Nh4 a6 10.Ng6 fg6 11.Nc3 Bc5 12.d4=+; D) 8.d3 D1) 8...0–0 9.Nbd2 c6 10.a4 a6 11.0–0 c5 12.Re1=; D2) 8...a6 9.a4 0–0 10.Nbd2 Nbd7 11.c4 dc4 12.Nc4=+.

7.c3 Bd6 8.d3 0–0 9.0–0 =+.

7.Bc3 c5 8.a3 Na6 9.bc5 =+.

7.c4 Bb4 8.Qa4 Nc6 9.Nd4 =+.

7.c4 dc4 8.Ne5 Nd5 (8...c6 9.a3 a5 10.ba5 Bc5 11.Nc4 0–0 12.d4=; 8...Be4 9.Be4 (9.Qa4 c6 10.Be4 Ne4 11.Qc2 Qd5 12.Qc4=+) 9...Ne4 10.Qc2 Qd5 11.Qc4 Qc4 12.Nc4=) 9.a3 Bb1 10.Rb1 b5 11.Be4 c5 12.bc5=+. michaelbuss – KrustytheClown, ChessWorld.net, 2005.

7.g5 Nh5 8.a3 c5 9.bc5 =+.

5.Bg2 Nf6

6.a3 A) 6...a5 7.c4 ab4 8.g5 Ne4 9.d3=; B) 6...e6 7.d3 c5 8.Qd2 Nc6 9.b5=; C) 6...Nc6 7.b5 Na5 8.d3 a6 9.a4=; D) 6...Na6 7.Bf6 ef6 8.c4 Be4 9.Be4=; E) 6...c6 7.Nf3 e6 8.d3 a5 9.ba5=.

6.d3 A) 6...Qd6 7.a3 e5 8.c4 c6 9.Nf3=; B) 6...e6 7.a3 c5 8.Qd2 Nc6 9.b5=; C) 6...h6 7.c4 e6 8.a3 a5 9.b5=; D) 6...c6 7.a3 e6 8.Nf3 a5 9.g5=.

6.d3 e5 7.a3= a5 8.ba5 Nc6=+ 9.Nf3 Nd7 10.Nfd2 Nc5 11.c4 d4 12.0–0 h5–/+ 13.Bc6 bc6 14.Nf3 hg4 15.hg4 Bd6 16.Qe1? e4 17.Bd4 Qd7 18.Ne5 Be5 19.Be5 Qg4 20.Bg3 Qh3 (21.f4 e3 22.Bh4 Rh4 23.Qh4 Qh4 24.Rf3 Qe1 25.Kh2 Qe2 26.Kg3 Be4 27.Nd2 ed2 28.Raf1 d1Q 29.Rd1 Qf3 30.Kh4 Qf2 31.Kg4 f5 32.Kg5 Qg3 33.Kh5 Qg4#; 20...ed3?! 21.ed3 Be4 22.f3–+ (22.de4?? Qf3 23.Bh2 Qh3 24.Bc7 Qh1)) 0–1. Bonetti,Shane – LoSterminatore (2685), ICC, 2002.

6.d3 e5 7.a3 a5 8.b5 Qd6 9.Nd2 =.

6.d3 e5 7.Be5 Nc6 8.Bc3 Bb4 9.Bb4 =.

6.Nf3= A) 6...Nbd7 7.Nh4 e6 8.Ng6 hg6 9.a3=; B) 6...Nc6 7.b5 Na5 8.d3 a6 9.a4=; C) 6...Na6 7.a3 e6 8.Ne5 Bd6 9.Ng6=.

6.f4 e6 7.a3 c5 8.b5 Nbd7 9.Nf3 a6 10.a4 Bd6 11.g5 Nh5 12.e3 ab5 13.ab5 Ra1 14.Ba1 Qa5 15.Nc3 d4! 16.ed4 Ng3 17.Rg1 Bf4 18.dc5 Nc5 19.Nd4 0–0 20.Kf2 (better is 20.Nce2!? Ne2 21.Ne2 Bg5 22.Be5–+) 20...Rd8 21.Qf3?? (21.Nce2 Nge4 22.Be4 Ne4 23.Kg2 Bd2 24.Qb1–+) 21...Rd4 22.Ne2 (22.d3 Bh5 23.Qf4 Rf4 24.Kg3–+) 22…Nce4 (22...Nce4 23.Qe4 Re4 24.Be4 Ne4 25.Kf3 Qd2–+) 0–1. Rush,Bradley – Albesa,Ricardo, OP–2010–0–01124, 2010.

6.g5 A) 6...Nh5 7.h4 Qd6 8.e3 Qb4 9.Bc3=; B) 6...Ne4 7.h4 e6 8.d3 Nd6 9.Nf3=.

6.c4 e6

7.Qb3 Na6 A) 8.cd5 Nb4 9.d3 Nbd5 A1) 10.Qb5 Nd7 11.Bd5 ed5 12.Qd5 c6 13.Qd4=+ f6=+; A2) 10.Qb7 Rb8 11.Qc6 Qd7 12.Qc1 Bb4 13.Nd2 0–0=+; B) 8.a3 c6 9.Nf3 Be7 10.Ne5 Be4 11.Be4 Ne4 12.d3 dc4 13.Nc4= Nf6=.

7.Qb3 Nc6 8.a3 Be4 9.Be4 Ne4 10.cd5 Qd5 11.Qd5 ed5 12.Nf3 Nd6 13.d3= h5 =.

7.Qb3 Be4 8.Be4 Ne4 9.d3 Nf6 10.Nf3 Be7 11.Nbd2 0–0 12.Rc1 Nbd7 13.c5 c6 14.Rg1 Qc7 15.d4 Ne8 16.g5 f6 17.Qe3 Rf7 18.Qe6 fg5 19.Ng5 Bg5 20.Rg5 Nf8 21.Qe5 Qd7 22.Rc3 Ng6 23.Qg3 Nc7 24.Re3 Re8 25.Nf3 Re3= 26.fe3 Qe6 27.Ne5 Ne5 28.Re5 Qf6 29.Qg2 h6 30.e4+= Qf4 31.ed5 Nd5 32.b5 Rf8 33.Re4 Qf5 34.Bc1+/– Kh8 35.bc6 bc6 36.Qf3 Qc8 37.Qg4?? Qb8–+ 38.Qg6 Qb1 (39.Rf4 Qc1 40.Kf2 Rf4 41.Kg2 Qf1 42.Kh2 Rf2 43.Kg3 Qg2 44.Kh4 Qg6 45.e4 Qg5#; 38...Qb4 39.Kd1 Rf1 40.Kc2 Qc3 41.Kb1 Qc1#) 0–1. Vysoglad,P (2090) – Karhanek,P (2210), 18th Pobeskydi Chance Cup, 2007.

7.Qb3 c6

8.d3 Na6 A) 9.c5 Nd7 A1) 10.h4 h5 11.g5 b6 12.Qa3 Nc7 13.cb6=+ Na6=+; A2) 10.a3 e5 11.Nd2 Be7 12.Ndf3 Qc7 13.h4 h5=+; B) 9.a3 Bd6 10.Nf3 0–0 11.Nbd2 Bf4 12.e3 Bc7 13.Ne5 Nd7=.

8.d3 dc4 A) 9.Qc4 Nbd7 10.Nc3 Qb6 11.a3 Ne5 12.Qb3 Bd3 13.Nd1–/+ Bc4=+; B) 9.dc4 Na6 10.a3 h5 11.gh5 Nh5 12.Qe3 Bd6 13.b5=+ Bc5=+.

8.d3 Bd6 A) 9.c5 A1) 9...Be7 10.Nf3 0–0 11.Ne5 a5 12.h4 h5 13.g5= Nfd7=; A2) 9...Bf4 10.h4 h6 11.Nh3 Bc7 12.g5 Nh5 13.Nd2 Nd7=+; B) 9.Nf3 0–0 B1) 10.Nbd2 Nbd7 11.0–0 a5 12.c5 Bc7 13.a3= e5=; B2) 10.c5 Bc7 11.Nbd2 a5 12.0–0 ab4 13.Qb4 Na6=.

8.d3 Nbd7 9.Nd2 A) 9...Bd6 10.Ngf3 0–0 11.0–0 a5 12.c5 Bf4 13.a3= b5=; B) 9...dc4 10.Nc4 h5 11.gh5 Nh5 12.Bc1 Nf4 13.Bf4 Qf6=; C) 9...a5 10.ba5 Nc5 11.Qb6 Qb6 12.ab6 Nfd7 13.Bd4 Nb6=.

8.d3 Be7 A) 9.Nd2 A1) 9...dc4 10.Nc4 0–0 11.Qc3 Na6 12.a3 Nc7 13.Rc1 Nb5=; A2) 9...0–0 10.Ngf3 b5 11.cb5 cb5 12.a4 a5 13.ba5= b4=; A3) 9...Nbd7 10.Ngf3 dc4 11.Nc4 0–0 12.Bd4 Nd5 13.0–0 Nf4=+; B) 9.a3 0–0 10.Nf3 a5 11.Ne5 ab4 12.ab4 Ra1 13.Ba1=+ dc4=+; C) 9.Nf3 C1) 9...0–0 10.0–0 C11) 10...b5 11.cb5 cb5 12.Rc1 Na6 13.a4= Nb4=; C12) 10...Nbd7 11.Nbd2 a5 12.a3 Re8 13.Nh4 Nf8=; C2) 9...dc4 10.Qc4 0–0 11.a3 Nd5 12.h4 Bf6 13.Ra2 Bb2=.

8.d3 h5 9.cd5 Nd5 10.b5 Qa5 11.Nd2 Qb5 12.Qb5 cb5 13.g5 Nc6 –/+.

8.Nf3 A) 8...Bd6 A1) 9.c5 Bc7 10.d3 Nbd7 11.0–0 e5 12.Nbd2 Qe7 13.Qa4 h6=+; A2) 9.0–0 dc4 10.Qc4 Nbd7 11.Nc3 0–0 12.d3 Nd5 13.Nd5=+ ed5=+; A3) 9.d3 0–0 10.c5 Be7 11.Ne5 a5 12.h4 h5 13.g5= Nfd7=; B) 8...Nbd7 9.0–0 dc4 10.Qc4 Nb6 11.Qb3 Qd5 12.b5 Qb5 13.Qb5 cb5=+; C) 8...dc4 9.Qc4 Nd5 10.a3 b5 11.Qc1 Nf4 12.Kf1 Be4 13.Qc3 Ng2=+.

6.Nf3 e6

7.a3 c5 8.g5 Nh5 9.bc5 =+.

7.a3 Bd6 8.g5 Nh5 9.0–0 =+.

7.a3 Nbd7 8.d3 c5 9.c3 Bd6=+ 10.Nbd2 0–0 11.0–0 Qc7 12.Rc1 c4 13.dc4= dc4 14.Nc4 Qc4 15.Qd6 Nb6 16.Nd4 Qa2 17.Ba1 Nc4+= 18.Qc7 e5 19.Bb7 ed4= 20.Ba8 Ra8 21.cd4 Nb6 22.g5 Nfd5 23.Qe5 f5 24.gf6+/– Re8 25.Qg3 Nf6 26.Rc7 a5 27.ba5 Nbd5 28.Rb7 Qe2 29.Rb8 Rb8 30.Qb8 Be8 31.Rc1 Qe6 32.Qg3 Qa6 33.Rb1 (33.Bc3 Ne4 34.Qf3 Qg6 35.Kh2 Ndc3 36.Rc3 Nc3 37.Qc3 Qd6 38.Kg1 Bc6=+) ½–½. Fournier,Frederic – Schulz,Hans_Juergen, TT–06 TSC, 2003.

7.b5 Bc5 8.Nc3 0–0 9.d3 =+.

7.c3 Bd6 8.d3 0–0 9.0–0 =+.

7.Bc3 c5 8.a3 Na6 9.bc5 =+.

7.c4 Bb4 8.Qa4 Nc6 9.Nd4 =+.

7.g5 Nh5 8.a3 Be7 9.d3 =+.

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  • 1.b4 e5 2.Bb2 Bb4 3.f4 ef4 4.Bg7 Qh4 5.g3 fg3 6.Bg2 gh2 7.Kf1 hg1Q 8.Kg1 (Kucharkowski-Meybohm gambit, 6 players, 10 days move)
  • 1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 (Sokolski gambit, 4 players, 3 days/move)
  • 1.c4 Nf6 2.b4 (English orangutan, 4 players, 3 days/move)
  • 1.e4 c5 2.b4 (Sicilian: Wing gambit, 4 players, 10 days/move)
  • 1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 (French: Wing gambit, 4 players, 3 days/move)

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