• 5.c4 d4 testh120.htm (1.b4 e5 2.Bb2 f6 3.a3 d5)


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    TESTH120 Release 2024-06-12
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    1.b4 e5 2.Bb2 f6 3.a3 d5

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    4.Nc3 a5 5.ba5 d4 (5...Bf5 6.e3=+) 6.Ne4 Bf5 (6...f5 7.Ng3=+) 7.Ng3 Bg6 8.e3 Bc5 (8...d3 9.Bd3 Bd3 10.cd3 Qd3 11.Qh5 g6 12.Qe2 Qe2 13.N1e2=) 9.ed4 ed4 10.c3 (10.Bb5 Nd7=) 10...d3 (10...Qe7 11.N1e2=+) 11.Qf3 (11.Ne4 Be7 (11...Be4?! 12.Qh5 g6 13.Qc5=; 11...Ra5 12.Nc5 Rc5 13.f4=+) 12.Qf3 Nc6 13.Qd3 Ne5 14.Qd8 Kd8+=) 11...Qe7 12.Kd1 Nc6 13.Bd3 Bf7 (13...Bd3 14.Qd3 Bf2 15.Nf5+=) 14.Nf5 (better is 14.Bc2=) 14...Qf8? (14...Bb3 15.Bc2 Bc2 16.Kc2 Qd7+=) 15.Qe4 (15.a6 Bb3 16.Ke2+–) 15...Nge7+= 16.Nh3 (16.Bb5!?+=) 16...Bb3 17.Kc1 (17.Ke1 Bd5 (< 17...Na5 18.Nf4+=) 18.Qg4 Ne5=+) 17...Bd5=+ 18.Qg4 Ne5 19.Ng7? (19.Qh5 Kd8 20.Ne7 Nd3 21.Kc2–+) 19...Kf7 (19...Kd8 20.Nf4 Ng4 21.Nge6 Be6 22.Ne6 Kc8 23.Nf8 Nf2 24.Ne6 Nd3 25.Kc2 Nb2 26.Kb2–+) 20.Qe2 (20.Ng5 fg5 21.Qh5 Kg8–+ (21...Kg7 22.Qg5 Kf7 23.Qe5 Bg2 24.Rg1+/–)) 20...Qg7 (20...Bg2 21.Bc4 Kg7 22.Rg1+=) 21.Nf4 (21.Be4 f5 22.Qh5 Ke6 23.Bd5 Nd5-/+ (23...Kd5 24.Nf4 Kc6 25.d4-/+)) 21...Ra5 (21...Nd3 22.Qd3 Bg2 23.Rg1+=) 22.Qh5 (22.Nd5 Nd5 23.Be4 Nf4–+) 22...Kg8 23.Bf5 (23.Bb5 Bf2 24.Qe2 Bc5–+) 23...Bf7 (23...Bf2 24.Be6 Be6 25.Qe8 Qf8 26.Qf8 Kf8 27.Rf1–+; 23...Bg2?! 24.Qe8 Qf8 25.Be6 Kg7 26.Qf8 Kf8 27.Ng2=; 23...Nf5?! 24.Nd5 Nd6 25.Qh3–+) 24.Qh3 (24.Be6 Bf2 25.Kd1–+) 24…Qg5 (25.Bh7 Rh7–+; 24...Bf2?! 25.Ne6 Be6 26.Be6 Kf8 27.Rf1–+; 24...Nf5?! 25.Qf5 Bf2 26.Rf1–+) 0–1. Guest2911 – Wall,Bill, Internet, 2003.

    4.c4 a5 5.cd5= ab4 6.e4 (6.ab4 Ra1 7.Ba1 Na6 8.b5 Nb4 9.e4 Nh6 10.Nf3 Bd6) 6...ba3 (6...c6 7.Bc4 b5 8.Bb3 Ne7 9.ab4 Ra1 10.Ba1 cd5; 6...Kf7 7.Nf3 Nd7 8.d4 Bd6 9.ab4 Ra1 10.Ba1 Ne7) 7.Na3 Bc5 (7...c6 8.dc6 (8.Bc4 b5 9.Bb3 Ne7 10.Qh5 g6) 8...Nc6 9.Nf3= (9.Bc4 Bc5 10.Nb5 Ra1) 9...Be6 10.Bb5 Ba3) 8.Nf3 (8.Nc2 Ra1 9.Qa1 Nh6= (9...Ne7 10.d4 ed4) 10.d4 ed4) 8...Nh6 (8...c6 9.Qb3= (9.Bd3 Na6 10.0-0 Ne7) 9...Ne7 10.Rc1 Nd7; 8...Ne7 9.Qc2 Bd6 10.Be2 0-0) 9.Bb5 (9.Nc2 Ra1 10.Qa1 (10.Ba1 0-0) 10...0-0=; 9.Bc4 0-0 10.0-0 Nd7) 9...Bd7 (9...c6 10.Ba4+= (10.Be2 cd5) 10...Ng4) 10.Bc4 (10.Bd7 Nd7 (worse is 10...Kd7 11.Qb3 Qe7 12.Qb7+/–; worse is 10...Qd7 11.d4 ed4 12.Nd4+=) 11.Nc2 Ra1 12.Qa1 0-0+=; 10.0-0 Ng4) 10...Nf7 11.Nb5 Ra1 12.Qa1 Nd6 (12...c6 13.dc6 Bc6 14.d4 Bb4 15.Bc3 Bc3 16.Qc3 Be4 17.0-0+=) 13.Nd6 cd6 (13...Bd6 14.d4 ed4 15.Nd4+=) 14.0-0+= 0-0 (14...Bg4 15.d4 Bf3 16.gf3 ed4 17.Bd4 Bd4 18.Qd4=) 15.d4 Bb6 16.Qa3 Bg4 17.Rb1 (17.Nd2 ed4 18.h3 Bc8=) 17...Bf3 (17...f5!? 18.Nd2 fe4 (worse is 18...Bd4 19.Bd4 ed4 20.Rb7+/–; worse is 18...ed4 19.Qg3+=) 19.Ne4 Bf5=) 18.Qf3+= ed4 19.Qg4 Bc5 20.Bc1 b6 21.Bb5 (21.Qe6 Rf7+=) 21...f5 (21...Qc8 22.Qf4=) 22.ef5+= Qf6 23.Bd3 Nd7 24.Bg5 Ne5 25.Qh4 Qf7 26.Be4 d3 27.f6 (27.Bf4 Nd7+=) 27...gf6= 28.Bh6 Ra8 29.Bf5 Kh8 (29...Qd5?? 30.Qf6 Nf3 31.gf3+–) 30.Bf4 Ra2 31.Bg3 d2 32.h3 Qg7 (32...b5 33.Rd1=) 33.Kh2 (33.Qh5 b5=) 33...h6+= 34.Qh5 Ra8 (34...Bf2 35.Bf2 d1Q 36.Rd1 Rf2 37.Be4=) 35.Rd1 (35.Bf4 Ra2=) 35...Qg5 36.Qg5 hg5 37.Rd2 b5 38.f4 (38.Rb2 b4+=) 38...Ra1 (38...Nc4 39.Re2+=) 39.Bf2 (39.fe5!? Bg1 40.Kh1 Be3 41.Kh2 Bg1 42.Kh1 Bd4 43.Kh2 Bg1=) 39...Nc4+= 40.Re2 (40.Rc2 Bf2 41.Rf2 Kg7+=) 40...gf4-/+ 41.Bc5 dc5 42.Re8 Kg7 43.Rc8? (better is 43.Bd3 Rd1 44.Bc4 bc4 45.Re4–+) 43...Ne3–+ 44.Be4 (44.Bd3 c4 45.Rc7 Kf8 46.Be2–+) 44...Nf1 45.Kg1 Ng3 46.Kf2 (46.Bb1 Rb1 47.Kf2 Rf1) 46...Rf1 0–1. Cottarelli,Franco (1970) – Gromovs,Sergejs (2315), Open Salsomaggiore ITA, 2006.

    4.c4 c5 5.cd5 cb4 6.e4 ba3 7.Na3 Bd7 8.Nf3 Na6?? (8...Nh6 9.Bc4+-) 9.Ba6 (better 9.Ne5 fe5 10.Qh5 g6 11.Qe5 Qe7 12.Qe7 (12.Qh8?! Qe4 13.Be2 Qg2+/-) 12...Be7 13.Bh8+-) 9...ba6 10.0-0 Bd6 11.Nc4 Bb5 12.d3 Ne7 13.Ba3 Ba3 14.Ra3 0-0 15.Nfd2 Nd5 (better 15...Rb8!?+/-) 16.ed5+- Qd5 17.Qe2 Rfd8 18.Qe4 (18.Rb1 Qd4+-) 18...Rac8 19.Qd5 Rd5 20.h3 Rcd8 21.Nb2 f5 Attacking the isolated pawn on d3 (21...Bd3 22.Rd3 Rd3 23.Nd3 Rd3 24.Ne4+=) 22.Nf3 (better 22.Ndc4!?+/-) 22...e4= 23.de4 fe4 24.Nh2 Bf1 25.Nf1 Rb5 26.Nc4 Rb4 27.Nce3 Rd6 28.Ra5 h6 29.g3 Rb5 30.Ra4 Re6 31.Kg2 a5 32.g4 Ree5 33.Ng3 Exerts pressure on the isolated pawn 33...Rb4 34.Ra3 a4 35.Nef5 Kh7 36.Ne2 g6 37.Ne3 Ra5 38.Nf4? (better 38.Nc3!?=) 38...Rb3-/+ 39.Ra2 a3 40.Nc4? (better 40.Nd1-+) 40...Ra4 41.Nd6 (41.Na3 Raa3 42.Rc2-+) 41...Rb2 42.Ra1 a2 0-1. pacalmisu (2370) - mecker (2410), Rated Blitz game, lichess.org, 2016.

    4.d3 c6 5.Nf3 Be6 6.g3 Bd6 7.Bg2 Nd7 8.0-0 Ne7 9.Nbd2 Qc7 10.c4 dc4 11.Nc4 Ng6 12.Rc1 0-0 13.Nd6 Qd6 14.Nd2 Qc7 15.Qc2 Kh8 16.Nc4 a6 17.a4 Nb6 18.Nb6 Qb6 19.Ba3 Rfd8 20.Qc5 Qc5 21.Rc5 Bb3 22.a5 Ba4 23.Rfc1 Bb5 24.Be4 Ne7 25.Bb2 g6? 26.g4 Kg7 27.g5! fg5 28.Be5 Kf7 29.f4 gf4 30.Bf4 Nd5 31.Bh6 Ke6 32.Bd2 Rf8 33.Rf1 Rf1 34.Kf1 Rf8 35.Kg2 Nf4 36.Bf4 Rf4 37.Kg3 Rf8 38.h4 Kf6 39.Bf3 h6 40.d4 Rd8 41.d5 cd5 42.Bd5 h5?? 43.Bb7+– Rd4 44.e4 Rb4 45.Bd5 Rd4 46.Kf4 Ra4?? 47.Ke3 Ra5=+ 48.e5? Ke5–+ 49.Bf7? Kd6 50.Rd5-/+ Kc6 51.Rd2 Ra3 52.Kd4 Ra4 53.Kc3 Rh4 54.Bg6 Rh3 (54...Rh3 55.Kd4 h4–+) 0–1. bratek55 (1690) – bali63 (1755), internet, 2011.

    4.d3 d4 (--> 1.b4 e5 2.a3 d5 3.Bb2 d4 4.d3 f6).

    4.d3 Qd6 5.Nf3 Nh6 6.e3 Be7 7.Be2 0-0 8.0-0 Be6 9.Nbd2 Nd7 (9...a5 10.b5=) 10.c4 c6 11.Qc2 Nf7 (11...b6 12.Rac1=) 12.Rfc1 dc4 (12...Rad8 13.d4=) 13.Nc4+= Qc7 14.d4 ½–½. Zarko,Ivica (2030) – Stefan,Kresimir (2215), Velika Gorica op 7th, 2007.

    4.d3 Nh6 5.Nd2 Nf7 6.Ngf3 Be7 7.g3 Be6 8.Bg2 0-0 9.0-0 c6 10.e4 Nd7 11.c4 d4 12.Nh4 a5 13.Qb3 g5 (13...b5!?=+) 14.Nf5= Bf5 15.ef5 Nh6 16.Be4 ab4 17.ab4 Qb6?? (better 17...Qc7+=) 18.c5+- (18.c5 Nf7 19.cb6 Nb6 20.b5+-) 1-0. Zobbie (2425) - alifie (2470), Rated Bullet game, lichess.org, 2020. (=1.a3 d5 2.b4 e5 3.Bb2 f6 4.d3)

    4.d4 a6 5.de5 Nc6 (5...fe5 6.Be5 Nf6 7.Nc3+=) 6.Nf3+/– Bg4 7.ef6 Nf6 8.Nbd2 Bd6 9.e3 0-0 10.Be2 Qd7 (10...b5 11.Nb3+=) 11.c4+/– dc4 12.Nc4 Rad8 13.Nd6 Qd6 14.Qd6 Rd6 15.Rc1 Bf5 (15...Re8 16.a4 Bf3 17.gf3 (< 17.Bf3 Nb4 18.Be2 c6+=) 17...Nb4 18.Rc7+/–) 16.Ne5 (16.Rc6 bc6 17.Ba6 Bd3 18.Bd3 Rd3+/–) 16...Bd7 (16...Ne5 17.Be5 Rd7 18.Bc4 (18.Bc7?! Rc8=) 18...Kh8 19.Bd4+–) 17.Bc4 (17…Be6 18.Be6 Re6 19.Nc6 bc6 20.Bf6 Ref6 21.f3+–) 1–0. mrkt – Doctor X, ChessWorld.net, 2004.

    4.e3 Be7 5.Nf3 Nc6 6.Bb5 Bd7 7.Ba4 d4 8.ed4 Bg4? 9.h3 Bf3 10.Qf3 b5?? 11.Bb5 ed4 12.Bc6 Kf7 13.Ba8 Nh6 14.Bd5 Kf8 15.Bd4 Qd7 16.c3 Nf5 17.Bc6 Qe6 18.Qe4 Nd4 19.cd4 Qd6 20.0-0 g5 21.Nc3 Rg8 22.Bb7 Kg7 23.Nd5 f5 24.Qe7 Qe7 25.Ne7 (25.Ne7 Re8 26.Nf5 Kf6 27.Ne3+–) 1–0. willi_weizenkeim – laz, playchess.de, 2002.

    4.e3 Bg4 5.Be2 Be2 6.Ne2 a5 7.b5 a4 8.0-0 c6 9.bc6 Nc6 10.Ng3 Nge7 11.d3 Ra5 12.f4 d4 13.f5 b5 14.Ne4 de3 15.Qh5 g6? 16.Nf6+– Kf7 17.fg6 Ng6 18.Nd5 Ke6?? 19.Ne3 Bc5 20.Qg4 Kd6 21.Rf6?? Qf6–+ (21...Qf6 22.d4 Nd4–+) 0–1. Trkn – Pete, itsyourturn.com, 2001.

    4.e4 a5 5.f4 (better is 5.ed5!? ab4 6.ab4 Ra1 7.Ba1 Qd5 8.Nc3=) 5...ef4 6.Nh3 Bd6 7.ed5 Ne7 8.Bb5 c6 9.dc6 0-0 (9...Nbc6 10.Qh5 g6 11.Qh4 Bh3 12.Qh3-/+) 10.Bc4 Kh8 11.Qf3? (better is 11.cb7 Bb7 12.0-0+=) 11...Nbc6–+ 12.Nf4 Ne5 13.Qb3 Nc4 14.Qc4 b5! 15.Qe4 (15.Qb5 Bf4 Deflection) 15...Bf5 16.Qf3 Qc7 (16...Bc2?! 17.Ne6 Qb6 18.Nf8 Rf8 19.ba5 Qa5 20.0-0=) 17.0-0 Qc2 18.Bc3 ab4 19.ab4 Ra1 20.Ba1 Bb4 21.Na3 (21.d4 Be4 22.Na3 Qc6–+ (22...Bf3?! 23.Nc2 Bd2 24.Rf3=)) 21...Qa4 22.Bb2 Bd2 23.Qe2 Qb4 (23...Bf4?! 24.Qe7 Kg8 25.Nb5 Bh2 26.Kh2 Qb5 27.Ba3–+) 24.Nb5 Qb2 25.Qe7 Bb4 26.Qb7 Qd2 (26...Qc2 27.Qd5 Be4 28.Nd4–+) 27.Kh1 Re8 28.h3 Be4 29.Qf7 (29.Qb6 h6–+) 29...Bc6 30.Nc7?? (30.Qc4 Rc8 31.Rf3–+) 30...Re1 31.Re1 (31.Qc4–+) 31...Qe1 (31...Qf4?? 32.Re8 Be8 33.Qe8 Bf8 34.Qf8) 32.Kh2 Bc5 33.h4 Qh4 34.Nh3 Bd6 35.Kg1 (35.Kh1 Qh3 36.Kg1 Qg2) 35...Qe1 0–1. Kutuzov,Denis (2360) – Gomez,John Paul (2525), Moscow Open E, 2011.

    4.e4 Ne7 5.ed5 (5.Qh5 g6 6.Qf3 Bg7=) 5...Nd5 6.d4 ed4 7.Qd4 c5 (7...Bd6 8.Qe4 Ne7 9.Nc3=) 8.Qe4 (8.bc5 Nc6 9.Qe4 Qe7 10.Qe7 Be7=) 8...Qe7 9.Bd3 (9.Qe7 Be7 10.Nc3 Nc3 11.Bc3 Nc6=) 9...cb4+= 10.Ne2 Qe4 (10...Qe6 11.Nd4 Qe4 12.Be4 ba3 13.Ba3+=) 11.Be4 Nc7 12.0-0 (12.Nd4 ba3 13.Na3 Bc5+=) 12...Bc5 (12...Nc6 13.Re1+=) 13.ab4 Bb4 14.Ba3 (14.Nd4 0-0+=) 14...Nba6 (14...Ba3 15.Na3 f5 16.Bf3-/+) 15.Bb4 Nb4 16.Na3 (16.Nd4 0-0-/+) 16...0-0 (16...f5 17.Bf3-/+) 17.Rfb1 Nc6 18.Nc4 Rd8 19.h4 (19.Kf1 Kf7-/+) 19...g6 (19...f5 20.Bf3+=) 20.c3 (20.Na5 Na5 21.Ra5 Ne8+=) 20...Kg7 (20...Rd7 21.Nf4 Nd8 22.Rd1+=) 21.Nf4 f5 22.Bf3 Rd7 23.g3 Kf8 24.Rb2 Rd8 25.Kg2 a6 26.Rab1 (26.Rb6 Ra7=) 26...Ra7 (26...Nb5!? 27.Nb6 Ra7=) 27.Bc6= bc6 28.Ne5 Ra8 29.Nc6 The passed pawn on c3 quickly leads to threats 29...Re8 30.Ra1 Bd7 31.Rb6 Rac8 32.Nb4 Increasing the pressure on the isolated pawn on a6 (32.Nd4 Kf7=) 32...Bb5 33.Rb7 Re7 34.Ra5 Re4 (34...Nd5 35.Re7 (35.Nbd5? Rb7 36.Ne6 Ke8–+) 35...Nf4 36.gf4 Ke7 37.Na6 Ba6 38.Ra6 Rc3 39.Ra7 Kf6 40.Rh7=) 35.Ra7 Rc4 36.Rc7 R8c7 37.Ne6 Kf7 (37...Ke8 38.Nc7 Rc7 39.Na6 Ba6 40.Ra6 Rc3 41.h5+=) 38.Nc7 Rc7 39.Na6 Ba6 (39...Rc3?? 40.Rb5 Ke6 41.Rb6 Ke5 42.Rb7+–) 40.Ra6 Rc3 ½–½. Schuster,Peter (2340) – Gierth,Karlheinz (2215), BdF T, 2004.

    4.Be5?? fe5-+ 5.e4 de4 6.Qh5 Ke7 (6...Kd7!? 7.Qf5 Kd6 8.Qe4-+) 7.Qe5-/+ Be6 8.Nc3 (8.Qe4 Nc6 9.Bc4 Qd6-/+) 8...Nc6 (8...Nf6 9.Ne4 Nc6 10.Qf4 Ne4 11.Qe4-+) 9.Qe4 Kf7 (better 9...Nf6!? 10.Qe3 Ng4-+) 10.Nf3=+ h6 (10...Qe7 11.0-0-0 h6 12.Re1=+) 11.Bc4 Qd7?? (11...Qe7 12.Qf4 Nf6 13.0-0 Bc4 14.Qc4 Qe6 15.Qb5=) 12.0-0?? (better 12.b5 Nge7 13.bc6 Nc6 14.0-0 Bc4 15.Qc4 Ke8 16.d4+-) 12...Nf6=+ 13.Qh4 Bc4 (better 13...Bd6!? 14.Rae1 Rhe8-/+) 14.Qc4= Qe6 15.Qb5 Bd6 16.Rfe1 (16.Qb7? a6 17.Qc6 Bh2 18.Kh2 Ng4 (18...Qc6?? 19.Ne5 Ke6 20.Nc6+-) 19.Kg3 Qc6 20.Kg4 Qg6 21.Kh3 Qc2-+) 16...Qg4 (better 16...a6!? 17.Qd3 Ne5 18.Re5 Be5=) 17.Qb7= Ne7 18.d3 (18.Ne5 Be5 19.Re5 Qd7+=) 18...Rae8 (18...Rhb8!? 19.Qa6 Ned5 20.Nd5 Nd5=) 19.Ne4 Ng6?? (better 19...Nfd5+=) 20.Nd6+- Kg8 (20...Kf8 21.h3 Qd7 22.Ne8 Ne8 23.Qa7+-) 21.Ne8 Ne8 22.Re8 Kh7 23.Rh8 Kh8 24.Qe4 Nf4 25.Ne5 Nh3 (25...Ne2 26.Kf1 Qe4 27.de4+-) 26.Kf1 Qe4 27.de4 Nf4 (27...Ng5 28.Re1+-) 28.Rd1 Ne6 29.h4 Kh7 30.h5 g5 31.Rd7 (31.hg6!? Kg8+-) 31...Kg8 32.Ng6 (32.Re7 Nf4+-) 32...c5 33.e5 cb4 34.ab4 a5 35.b5 Nc5 36.b6 (better 36.Rd5 a4 37.Rc5+-) 36...Nd7 37.b7 Nb8 38.Ke2 a4 39.Kd2 a3 40.Kc1 Nc6 (40...Kf7+-) 41.Kb1 (41.Kb1 Kf7 42.Ka2+-) 1-0. capitan_huk (2335) - zumpili (2240), Rated Bullet game, lichess.org, 2019. (=1.a3 d5 2.b4 e5 3.Bb2 f6)

    4.f3 a5 5.b5 Bd6 6.c4 d4 7.d3 (7.e3 Bc5+=) 7...Nh6 8.g3 Nf5 9.Bc1 Nd7 10.Bh3 Nc5 11.a4 g5 12.Bf5 Bf5 13.Nd2 h5 14.Nb3 (14.Ne4 Qe7-/+) 14...Ne6 15.Ba3 Ba3 16.Ra3 g4 (16...Qd6 17.Ra1-/+) 17.h3 (17.Ra1-/+) 17...Kf7 (17...Qe7!? 18.Ra1 gh3 19.Nh3 Rg8-/+) 18.Qc1 (18.Nd2 Qd6 19.Rb3 Nc5-/+) 18...Bg6 (18...gh3 19.Nd2+=) 19.h4 (19.c5 Qd5+=) 19...f5 (19...Kg7 20.Ra2+=) 20.Nd2 (20.c5 Qd5+=) 20...Qe7 21.Rh2 (21.Rb3 Nc5 22.Ra3 f4-/+) 21...f4 22.Nf1 Rag8 23.c5 (23.Ra2 Ke8-/+) 23...Bh7 (23...Qc5 24.Ra1–+) 24.Rg2 (24.fg4 Rg4 25.Nf3 Nc5 26.gf4 Rf4–+) 24...Ke8 (24...Qc5 25.Ra1–+) 25.Qd2 (25.c6!? b6 26.fg4 hg4 27.Kd1–+) 25...fg3 26.b6 (26.Qa5 Nc5 27.b6 cb6 28.Qb6 Rg6 29.Qb5 Nd7–+) 26...c6 (26...cb6 27.Qb2 Nc5 28.Ng3–+) 27.Rg3 (27.Qa5!? Nc5 28.Kd1-/+) 27...Nc5 (27...Qc5 28.Rb3–+) 28.Ra2 (28.Qa5 Kd7–+) 28...Qh4 0–1. Benassi,Aspasio (2185) – Galus,Stanislaw (1940), FICGS, 2015.

    4.Nf3 a6 5.e3 Bg4 6.Be2 Bf3 7.Bf3 e4 8.Be2 c5 9.bc5 Bc5 10.d3 Ne7 11.de4 0-0? (better is 11...Qb6 12.Ra2 de4+=) 12.ed5+– Qd5?? (better is 12...Qd6+–) 13.Qd5 Nd5 14.0-0 (better is 14.Bc4 Kh8 15.Bd5+–) 14...b5? (14...Nb6 15.a4+/–) 15.Nc3 (better is 15.Bf3 Nc7 16.Ba8 Na8 17.c4+–) 15...Nc3+/– 16.Bc3 Nc6 17.Rfd1 Rfe8 18.Bf3 Ne5? (better is 18...Rac8+/–) 19.Ba8+– Ra8 20.Be5 fe5 21.Rd5 Rc8 22.Re5 Bd6 23.Re6 Rd8 24.Kf1 Bh2 (24...Kf7 25.Re4 Rc8+–) 25.g3 Rd5 (25...Ra8 26.Kg2 Bg3 27.fg3+–) 26.Kg2 Rh5 (26...Bg3 27.fg3 a5 28.Rb1+–) 27.Ra6 g5 (27...Bg3 28.Kg3 Rg5 29.Kh4+–) 28.Rb6 g4 29.a4 ba4 30.Ra4 Bg3 31.Kg3 Rh3 (31...Rf5+–) 32.Kg4 Rh2 (32...Re3 33.fe3 h5 34.Kh5 Kf8 35.Ra7 Ke8 36.Rb8) 33.Kg3 (33.Ra8 Kf7 34.Ra7 Ke8 35.Rb8) 33...Rh5 (33...Rh4 34.Ra8 Kf7 35.Ra7 Ke8 36.Rb8) 34.Ra8 Kg7 (34...Kf7 35.Ra7 Ke8 36.Rb8) 35.Ra7 Kh8 (35...Kf8 36.Rb8) 36.Rb8 1–0. Fournier,Frederic – regatesxv, Active, 2005.

    4.Nf3 c6 5.d3 (5.d4 e4 6.Nfd2 a5+=) 5...a5+= 6.c3 Bg4 7.Nfd2 (7.e3 ab4 8.ab4 Ra1 9.Ba1 Bd6=) 7...Nd7 (7...Bd6 8.h3 Bh5 9.g4+=) 8.g3 (8.h3 Be6+=) 8...Qb6 (8...ab4 9.ab4 Ra1 10.Ba1+=) 9.Qc1 (9.Bg2 ab4 10.ab4 Ra1 11.Ba1 Bd6+=) 9...Nh6 (9...Bd6 10.h3 Be6 11.Bg2-/+) 10.f3 (10.Bg2 ab4 11.ab4 Ra1 12.Ba1 Be6+=) 10...Be6 11.Bg2 (11.e4 Bd6-/+) 11...Nf5 Black intends d4 12.Nf1 g6 (12...ab4 13.ab4 Ra1 14.Ba1-/+) 13.Qc2 (13.e4 Bh6 14.f4 Ne7-/+) 13...ab4 14.ab4 Ra1 15.Ba1 d4 16.c4 (better is 16.Qa4!?-/+) 16...Bb4–+ 17.Kf2 (17.Kd1 0-0–+) 17...Qa5 (17...0-0 18.Bb2–+) 18.Qb2 (18.Bb2 b5 19.Nbd2 Qa4–+) 18...Be1 (18...b5 19.cb5 cb5 20.f4–+) 19.Kg1 Kf7 (19...b5 20.Nbd2–+) 20.Nbd2 (20.g4 Nd6–+) 20...Nc5 (20...Ne3 21.Qc1 Bd2 22.Nd2–+) 21.Qc1 (21.g4 Ne3 22.Ne4 Ne4 23.Qb7 Kg8 24.fe4 Ng4–+ (24...Ng2 25.g5 Nf4 26.Qb8 Kg7 27.gf6 Kh6 28.Qb1–+)) 21...Ra8 22.Qe1 (22.Bb2 Qb4–+) 22...Qa1 23.Qa1 Ra1 24.Kf2 (24.Ne4 Ne4 25.fe4 Ne3–+) 24...Ra2 25.Ne4? (25.h4–+) 25...Nd3 26.Kg1 Nc1 27.Nfd2 Ne2 28.Kf2 Nc3 29.Ke1 Ne3 30.Bf1 b5 (30...Bh3 31.Nd6 Ke7 32.c5 Nf1 33.Rf1 Bf1 34.Nb7–+) 31.cb5 (31.Nc3 dc3 32.Nb3 Nf1 33.Rf1 Bc4–+) 31...cb5 32.Nd6 Ke7 33.Nb5 (33.Nb7 b4 34.Nc5 h6–+) 33...Nb5 34.Bb5 (34.Rg1 Nc3–+) 34...Ra1 (34...Ra1 35.Kf2 Rh1–+) 0–1. Luettig,Hendrik – Kuhn,Gerd, Pinneberg–ch, 2003.

    4.Nf3 Bf5 5.e3 (--> 4.e3 Bf5 5.Nf3).

    4.Nf3 Nh6 5.e3 c5 6.Bb5 Nc6 7.d4 cb4 8.ab4 Bb4 9.Bc3 Bd6 10.0-0?? Bg4 11.h3= Bd7 12.Nbd2 e4-/+ 13.Nh2 Qc8 14.Qh5-/+ (14.Qh5 Kd8 15.Rfb1-/+). supertimchan (2075) – malaysianisme, net–chess.com, 2004.

    4.g3 a5 5.b5 A) 5...Nd7 6.d4 (6.e3 Nb6 7.d4 e4 8.Nd2 Na4 9.Qc1+=; 6.Bg2 Nb6 7.d4 e4 8.Bc1 Bf5 9.f3+=) 6...Ne7 7.Bg2 c6 8.de5 Ne5 9.Nf3+=; B) 5...Bd7 6.d4 (6.e3 Be6 7.f4 Nd7 8.Bh3 Qe7 9.Be6+=) 6...ed4 7.Qd3 Bc5 8.Nf3 Ne7 9.Bd4=; C) 5...a4 6.e3 (6.d4 e4 7.Nd2 Be6 8.Rb1 Ne7 9.Bg2+=; 6.Nf3 Be6 7.e3 Bd6 8.Bg2 Ne7 9.Nc3+=) 6...Be6 7.f4 ef4 8.gf4 Bc5 9.c4=; D) 5...Bf5 6.d4 (6.Bg2 c6 7.bc6 Nc6 8.Nc3 d4 9.Nd5+=) 6...e4 7.e3 Be6 8.c4 dc4 9.Nd2=; E) 5...Bd6 6.c4 (6.Bg2 Ne7 7.Nc3 c6 8.bc6 bc6 9.Rb1+=; 6.d4 Ne7 7.c4 dc4 8.e4 ed4 9.Qd4+=) 6...dc4 7.e4 Be6 8.Qc2 Nd7 9.Bc4+=.

    4.g3 b6 5.Bg2 Bb7 6.e3 c5 7.c3 Qc7 8.d4 cd4 9.cd4 ed4 10.Bd4 Ne7 11.Ne2 Nd7 12.0-0 Ne5 13.Nbc3 Nc4 14.Nb5 Qd7 15.a4 a6 16.Nbc3 Nf5 17.Nf4 Nfe3? 18.fe3+– Ne3 19.Be3 Bb4 20.Ncd5 Bd5 21.Bd5 Rd8 22.Qh5 g6 23.Ng6! Rg8 (23...hg6 24.Qg6) 1–0. audrey – tfjv, Live Game Caissa's Web, 2004.

    4.g3 c5 A) 5.Bg2 cb4 6.ab4 (6.Nf3 ba3 7.Ba3 Ba3 8.Ra3 Nc6 9.0-0-/+; 6.e4 ba3 7.Ba3 Ba3 8.Na3 de4 9.Be4-/+) 6...Bb4 7.c4 Bc5 8.d4 Qb6 9.dc5-/+; B) 5.c3 B1) 5...Be6 6.Bg2 (6.e3 Nc6 7.d4 c4 8.de5 fe5 9.Bg2-/+; 6.Bh3 Bh3 7.Nh3 Qd7 8.Ng1 Nc6 9.d3+=) 6...Nc6 7.Nf3 e4 8.Ng1 Bd6 9.d3+=; B2) 5...Qb6 6.d3 (6.e3 Nc6 7.d4 Be6 8.Bh3 Bh3 9.Qh5+=; 6.Ra2 Nc6 7.Bg2 Be6 8.Bh3 Bh3 9.Nh3-/+; 6.d4 ed4 7.Bg2 Ne7 8.cd4 cb4 9.Nf3+=; 6.Bg2 Be6 7.Nf3 a5 8.0-0 ab4 9.cb4-/+) 6...Bd6 7.Bg2 Ne7 8.Nd2 Be6 9.Qb3+=; B3) 5...Bd6 6.d4 (6.Bg2 Ne7 7.d4 ed4 8.bc5 dc3 9.Nc3+=; 6.bc5 Bc5 7.d4 Bb6 8.e3 Nc6 9.Bb5+=) 6...cb4 7.cb4 Ne7 8.Bg2 e4 9.f3+=; B4) 5...a5 6.bc5 Bc5 7.d4 Ba7 8.e3 Nc6 9.Bb5=; B5) 5...Nc6 6.Bg2 (6.d3 Bd6 7.Bg2 Be6 8.Nf3 Nge7 9.0-0+=; 6.b5 Na5 7.Bg2 Bf5 8.d3 c4 9.a4-/+; 6.Bc1 Bd6 7.Bg2 Nge7 8.d3 0-0 9.Nf3+=) 6...Be6 7.d3 Bd6 8.Nf3 Nge7 9.0-0+=.

    4.g3 Qd6 5.Bg2 h5 6.d3 h4 7.c4 c6 8.Nc3 dc4 9.dc4 Be6 10.c5 Qd1 11.Rd1 Ne7 12.e3 Na6 13.Ne4 Nd5 14.Ne2 Nac7 15.N2c3 0-0-0 16.0-0 Be7 17.Nd5 Nd5 18.Nc3 Nc3 19.Bc3 g5 20.Bf3 g4 21.Be2 Rdf8 22.Rd2 hg3 23.fg3 Rh6 24.e4 Rfh8 25.Bd3 Kc7 26.Rfd1 a5 27.Bf1 ab4 28.ab4 Ra8 29.Rb2 Ra3 30.Be1 Rh8 31.Rd3 Ra1 32.Re3 Rha8 33.Kf2 R8a3 34.Ra3 Ra3 35.Be2 Bf8 36.Bd2 Ra4 37.Ke3 Bh6 38.Kd3 Bd2 39.Kd2 b6 40.cb6 Kb6 41.Kc3 Ra1 42.Bd3 Rc1 43.Kd2 Rh1 44.Kc3 Rg1 45.Rf2 Kc7 46.Rf6 Kd6 47.Rf2 Rc1 48.Bc2 Ra1 49.Rf6 Ra3 50.Kb2 Rf3 51.Rh6 Rf2 52.Rh4 Ke7 53.Rh7 Kd6 54.Rh6 Ke7 55.Kc3 Rf3 56.Bd3 Rf2 57.b5 cb5 58.Bb5 Rf3 59.Bd3 Kd6 60.Rh8 Bd7 61.Rh6 ½–½. toffie62 (1800) – onny555 (1815), gameknot.com, 2014.

    4.h3 a5 5.b5 c5 6.e3 Be6 7.g4 (7.d4 ed4 8.ed4 c4=) 7...Nd7 8.Bg2 Ne7 9.a4 (9.f4 Qb6 10.f5 Bf7=+) 9...Ng6-/+ 10.Ne2 Nh4 11.Kf1 (11.Rg1 Ng2 12.Rg2 Bd6-/+) 11...h5 12.gh5 Nb6 (12...Rh5?? 13.Nf4 Rh6 14.Ne6+-; 12...Ng2?! 13.Kg2 Rh5 14.d4-/+) 13.Ng3 Qd7 14.d3 0-0-0 (14...d4 15.Bc1-/+) 15.Nc3 (better 15.Bc3!?=) 15...Kb8 16.e4 (better 16.Qd2 Nc8 17.e4-/+) 16...f5?? (better 16...d4!? 17.Nce2 c4-/+) 17.ed5 (17.Nd5 A) 17...Ng2? 18.Be5 Bd6 A1) 19.Kg2 Be5 (19...Nd5?! 20.Bd6 Qd6 21.ed5 Qd5 22.Qf3=) 20.Nb6 Qc7-/+; A2) 19.Nb6+-; B) 17...Nd5 18.ed5 Bd5 19.Bd5 Qd5=+) 17...Nd5 (17...Bd5?! 18.Nd5 Nd5 19.Be5 Bd6 20.Qe1= (worse 20.Bd5 Be5 21.c4 Ba1 22.Qa1 Rde8-/+); 17...Ng2? 18.de6 (worse 18.Kg2 Nd5 19.Nd5 Bd5 20.f3 Re8-/+) 18...Qe6 19.Kg2+-) 18.Bd5 Bd5 19.Nd5 Qd5 20.Rg1 e4 21.Qe2 Nf3 22.Rg2 Nd4 (22...b6!?=+) 23.Bd4 (23.de4 fe4 24.Qe4 Qe4 25.Ne4 Rh5 26.Bd4 Rd4+/-) 23...Qd4= 24.Rd1 Qa4 25.Nf5 The backward pawn on g7 becomes a target 25...ed3 26.Rd3 Rd3 (26...Qa1 27.Qe1 Qe1 28.Ke1 Rd3 29.cd3 Rh5 30.Ng7 Bg7 31.Rg7=) 27.Qd3 (better 27.Qe8!? Rd8 28.Qd8 Ka7 29.b6 Ka6 30.Qa8 Kb6 31.Rg6 Kc7 32.Nd6 Qa1 33.Kg2 Bd6 34.Qh8+-) 27...Qa1+= 28.Ke2 Qe5 29.Ne3 Be7 30.b6 (30.Qd5 Qb2 31.b6 Rd8+=) 30...Qh5 (better 30...Rd8 31.Qf5 Qd4+=) 31.Kd2?? (better 31.Rg4!?+=) 31...Qe5 (better 31...Rd8 32.Rg7 Qh4-+) 32.Nc4 (32.Qf5 Rd8 33.Ke2 Qc3=) 32...Qf4 (32...Bg5 33.Kd1 Qa1 34.Ke2 Re8 35.Ne3=+) 33.Kc3 (33.Ke2 Re8=) 33...Bd8 (33...Bf6!? 34.Kb3 Qc1=+) 34.Kb3= Qf7?? (better 34...g5=) 35.Qd6+- Ka8 36.Qc5 Bb6 (36...a4 37.Ka4 Qe6 38.Rg6+- (38.Rg7?! Rh5 39.Qb4 Rd5+-)) 37.Qb6 Kb8 (37...Rh3 38.c3 a4 39.Kb4 Rh6 40.Qd8 Ka7+-) 38.Qd6 Qc7 39.Qc7 Kc7 40.Rg7 Kb8 41.Rg6 (41.Ka4!? Rh3 42.Nd6 Rh6 43.Rb7 Ka8+-) 41...Ka7 (41...Rh3 42.Ka4 Rc3+-) 42.Rg8 (better 42.Rg3 Rf8 43.Na5 Rf2 44.c4+-) 42...Rg8-/+ 43.Nd6 (43.Na5 Rh8-/+) 43...Rg7 (43...Rf8 44.c4-+) 44.Nb5 (44.c3 Rh7-+) 44...Ka6 45.Nc7?? (45.Nd4-+) 45...Ka7 (better 45...Rc7 46.Kb2 Rh7-+) 46.Nd5?? (46.Nb5 Kb6 47.Nd4-+) 46…Kb8 0-1. InTrollingWeTrust (2420) - zumpili (2435), Rated Bullet game, lichess.org, 2021. (=1.a3 d5 2.b4 e5 3.Bb2 f6)

    4.h3 c5 5.c3 Bd6 6.g4 (better is 6.bc5!? Bc5 7.d4=+) 6...Ne7 7.Bg2 Be6 8.d4 c4 9.e4 ed4 10.cd4 0-0 11.ed5 Bd5 12.Nf3 Ng6 13.0-0 Nf4 14.Nh4 (14.Nc3 Bf7-/+ (14...Ng2?! 15.Nd5 Nf4 16.Nf4 Bf4 17.Qe2=)) 14...Bg2 15.Ng2 Nh3 16.Kh1 Qc7 (better is 16...f5!? 17.f4 Qc7-/+) 17.Qf3=+ Ng5 18.Qf5 Nd7 19.f4 Nf7 20.Rf3 Qc6 21.d5 Qa4 22.Rh3? (better is 22.Nc3!? g6 23.Qg6 hg6 24.Na4=+) 22...Qd1 23.Kh2 Nh6 (23...Ng5 24.Re3 Nb6-/+) 24.Qd7?? (24.Rh6 gh6 25.Qe6 (25.Qd7? Bf4 26.Nf4 Qc2 27.Nd2 Qd2 28.Kg1 Qb2–+) 25...Rf7 26.Qd6–+) 24...Ng4 25.Kg3= Nh6 26.Nc3 Qd3 27.Kh2 Qc2 28.Ra2 Bf4= 29.Kh1 Rfe8 (30.Qa4 Qf5–+) 0–1. Pawn – papaya, Live Game Caissa's Web, 2004.

    4.c4 Be6

    5.cd5 Bd5 6.Nc3 c5 7.Qa4 Bc6 8.b5 Bd7 9.Nf3 Bd6 10.Ne4 Be7 11.e3 Nh6 12.Bc4 Nf7 13.Bf7+= Kf7 14.Qc4 Be6 15.Neg5!+– fg5 16.Ne5 Kf6? 17.Nc6 Kg6 18.Qe6 (18.Qe6 Kh5 19.Qf7 g6 20.Nd8 Bd8 21.Bh8 g4 22.Qb7 Bh4 23.Qa8 a5 24.Qb8 c4 25.Qe5 g5 26.g3 c3 27.dc3 Kg6 28.Qg7 Kf5 29.Qh7 Ke6 30.Rd1 Bg3 31.Qd7) 1–0. cgits (2560) – pornstars (2125), net–chess.com, 2005.

    5.cd5= Bd5 6.Nc3 Be6 7.e3 Nh6 (7...a5 8.b5=) 8.Nf3 Nf7 (8...a5 9.b5=) 9.d4+= Nd7 (9...Bd6 10.Ne4+=) 10.d5 Bg4 11.Qa4 (11.Be2 a5 12.ba5 Bf3 13.Bf3 Ra5+=) 11...Nd6 (11...Bd6 12.Be2=) 12.Nd2 (12.Rc1 Be7+=) 12...Be7 13.Bd3 0-0 14.Qc2 f5 15.h3 (15.f3 Bh5+=) 15...Bh5= 16.g4 e4 (16...Bg6 17.gf5 Nf5 18.Rc1=) 17.Be2 (17.Be4 fe4 18.gh5 Nf6+=) 17...fg4 (17...Bf7 18.gf5 Nf6 19.Rg1=) 18.Bg4 (18.hg4 Bg6+=) 18...Bg6 (18...Bf7 19.Nde4 Nc4 20.Rg1=) 19.Nde4 (19.Nce4 Nf6 20.Nf6 Bf6+=) 19...Bh4 (19...a5 20.b5+=) 20.Be6 (20.0-0 Nf6 21.Nf6 Bf6 22.Be6 Kh8+=) 20...Kh8 21.Rg1 (21.0-0 Ne5 22.f4 Nec4+=) 21...Nf6?? (21...Rf2! 22.Qf2 Ne5-/+) 22.Rg2 (better is 22.Rg6!? Nfe4 23.Ne4 hg6 24.Ng3+=) 22...Nfe4+= 23.Ne4 Be4?? (better is 23...Ne4 24.Rg6 hg6 25.Qe4 Rf2+=) 24.Qe4! Ne8 (24...Ne4 25.Bg7 Theme: Double Attack) 25.0-0-0 (25.Be5 Bf6+/–) 25...Bf6 (25...Bf2 26.Rd3 Bh4 27.Bf5+=) 26.f4 Bb2 27.Kb2 White gets in control 27...Qf6 (27...Qe7 28.Rdg1+/–) 28.Qd4 Nd6 (28...Qe7 29.Qc5 Qf6 30.Kb1+/–) 29.Kb3 (better is 29.Qf6!? Rf6 30.Rc2+–) 29...Qe7+/– 30.Rdg1 The mate threat is Rxg7 30...Ne8 31.f5 b6 (31...a5 32.Qc5 Qd6 33.Qd6 cd6 34.b5+–) 32.e4 Rd8 (32...c5 33.dc6 Rd8 34.Qc3+–) 33.e5 c5 34.Qg4 (better is 34.Qc3 Qb7 35.f6+–) 34...Rd5? (34...Qb7 35.Kb2 Rd5 36.Bd5 Qd5+–) 35.Bd5 Qe5 36.Be6 (36.Bc6 Nd6 37.Qg7 Qg7 38.Rg7 Nf5+–) 36...Qe3 (36...a6 37.Qe2 Qd6 38.Qa6 cb4 39.Qa4+–) 37.Ka2 cb4 (37...a6 38.Bf7! c4 39.Qc4+–) 38.Qb4 (38.Qb4 Qc5 39.Qc5 bc5 40.Rc1+–) 1–0. Zuccotti,Eduardo – Sosa,Leonardo, Grand Prix II Buenos Aires, 1992.

    5.e3 (--> 4.e3 Be6 5.c4).

    4.d3 a5

    5.c3 Ne7 6.Nd2 Be6 7.e4 Qd7 (7...Ng6 8.Ngf3=+) 8.Ngf3= c6 9.g3 (9.d4 Ng6=) 9...Na6 10.Bg2 Bh3 (10...Rd8 11.Qe2=) 11.0-0 (better 11.Ne5!? fe5 12.Qh5 g6 13.Qh3+/-) 11...h5 12.Qe2 g5 13.d4 Bg2 14.Kg2 h4 15.de5 hg3 16.fg3 (16.hg3?? Qh3 17.Kg1 Qh1) 16...g4 17.Nh4 (17.ef6 gf3 18.Nf3 Nc8 19.ed5 Kd8 20.dc6 bc6+-) 17...Rh4 (better 17...fe5!? 18.ed5 Bg7 19.dc6 Qc6 20.Ne4 Nc7+-) 18.gh4+- fe5 19.ed5 (19.ba5?! Ng6 20.ed5 Qd5 21.Kg3 Nc5+/-) 19...Qd5 20.Ne4 0-0-0?? (20...Ng6 21.Kg1 Be7 22.Nf6 Bf6 23.Rf6 Ne7+-) 21.Rad1 (better 21.Qg4 Qd7 22.Qd7 Kd7 23.Rad1 Nd5+-) 21...Qe6 (21...Qg8 22.Rd8 Kd8 23.Qd2 Kc7 24.Qd6 Kc8+-) 22.Rd8 (better 22.Ng5!? Qa2 23.Qg4 Kc7 24.Rd8 Qb2 25.Kh1 ab4 26.Rff8 Kb6 27.Qg1 c5 28.cb4 Qa3+-) 22...Kd8 23.Rf8 Kc7 24.Rf6 Qb3 (24...Qg8 25.c4 Ng6 26.Qg4 Nh4 27.Kg3 Qg4 28.Kg4+-) 25.c4 Qh3 (25...ab4 26.Be5 Kb6 27.Bd4 Ka5 28.ab4 Nb4 29.Rf1 Qh3 30.Kg1+-) 26.Kg1 ab4 27.Be5 Kb6 28.Qf2 Ka5 29.ab4 Nb4 30.Bc7 b6 31.Bb6 (31.Qb6 Ka4 32.Nc5 Ka3 33.Qa5 Kb2 34.Qb4 Kc1 35.Qe1 Kb2 36.Rf2 Ka3 37.Qa5) 31...Ka4 (31...Ka6 32.Nc5 Kb6 33.Nd7 Ka5 34.Qb6 Ka4 35.Nc5 Ka3 36.Qa5 Kb2 37.Qb4 Kc1 38.Qe1 Kb2 39.Rf2 Ka3 40.Qa5) 32.Bd4 (32.Qb2 Qe3 33.Be3 Ned5 34.Rf7 Na6 35.Qa2 Kb4 36.Rb7 Nb6 37.Rb6) 32...Qb3 33.Nc3 (33.Nc5 Ka5 34.Nb3 Ka4 35.Nc5 Ka5 36.Qb2 g3 37.Qa3 Kb6 38.Qb4 Kc7 39.Qb7 Kd8 40.Qd7) 33...Ka3 34.Rf8 (34.Rf8 Qc2 35.Qe1+-) 1-0. Zobbie (2520) - zumpili (2490), Rated Bullet game, lichess.org, 2021. (=1.a3 e5 2.b4 d5 3.Bb2 f6 4.d3)

    5.c3 Bf5 6.e3 ab4 7.cb4 c5 8.b5 Nd7 9.a4 Be7 10.Ne2 Nh6 11.Ng3 0-0 12.Nc3 Be6-/+ 13.Be2 Nf7 14.0-0 f5 15.e4 fe4-/+ 16.de4 Nf6 17.f4 d4-/+ 18.fe5 Ne5 19.Nb1 Bd6 20.Nd2 Bc7 21.Nf5-/+ Ne4 22.Ng7 Rf1 23.Bf1 Bg4 24.Qb3 Kg7 25.Ne4 Bb6 26.Bc4 Ng6 27.Rf1 Ne5 28.Nf6 Nc4? 29.Qc4+– Bd7?? 30.Qd3 Bf5 31.Qf5 Qe7 32.Qh7 Kf8 33.Qg8# 1–0. NN – SuperConstellation4, 1988.

    5.Nd2 ab4 6.ab4 Ra1 7.Qa1 Bb4 8.Qa4 Nc6 9.Ngf3 Nge7 10.c3 Bd6 11.c4 (11.e4 Be6-/+) 11...d4 12.g3 0-0 13.Bg2 Bf5 (13...Bb4 14.0-0-/+) 14.0-0 Qd7 (14...Bb4 15.Ra1-/+) 15.Qb3 (15.c5 Bc5 16.Qc4 Qd5 17.Qd5 Nd5=+) 15...Kh8 16.Nh4 (16.Ra1 Bb4-/+) 16...Bh3 17.Ne4 Bg2 18.Kg2 b6 19.Ra1 Na5 (19...Bb4 20.Nf3-/+) 20.Qc2 (20.Qa4 c6-/+) 20...Nb7 21.Ba3 Ba3 22.Ra3 Qc6 23.f3?? (23.Nf3 f5 24.Ned2 Qd6-/+) 23...Nc5 (23...g5 24.Qa4 Qe6 25.Qa7-+) 24.Ra7? (24.Kg1 Ne4 25.fe4 b5-+) 24...Ne4 (better 24...g5-+) 25.fe4 f5 26.Qa4 Qa4 27.Ra4 fe4 28.de4 Nc6 29.Nf5 g6 30.Nh4 Kg7 31.Nf3 Kf6 32.Ne1 h6 33.Nd3 Ke6 34.Ra1 (34.c5 Rb8-+) 34...Nd8 (34...Na5!? 35.Ra4-+) 35.c5 b5 36.Ra6 c6 37.Ra7 (37.Nb4 Kd7-/+) 37...Rf7 (better 37...g5!?-+) 38.Ra8=+ Rd7 39.Nb4 (39.Rc8=+) 39...Nf7 (39...Ke7 40.Nd3 Kf6 41.Rc8=+) 40.Nc6 (40.Rc8 Ng5 41.Rc6 Kf7 42.Rb6+=) 40...Kf6 (better 40...Rc7 41.Ra6 Kd7 42.Nb8 Kc8-/+) 41.Nb4+/- Ng5?? (better 41...Rd8 42.Ra6 Kg7+=) 42.Nd5 (42.c6 Rf7 43.Nd5 Kg7+-) 42...Kg7 (42...Ke6 43.c6 Ne4 44.Re8 Kd6 45.cd7 Kd7 46.Re5 Kd6 47.Re4 Kd5+-) 43.Nb6 (better 43.c6 Rd6 44.c7+-) 43...Rf7 (43...Rc7 44.Rc8 Rc8 45.Nc8 b4-/+ (45...Ne4?! 46.c6=+)) 44.Nc8?? (44.Nd5 Rf8 (worse 44...Ne4 45.c6 Rf2 46.Kg1+/-) 45.Ra7 Rf7=) 44...Ne6?? (better 44...Ne4 45.Kg1 b4-+) 45.Nd6+= Nc5 46.Nf7 Kf7 47.Rb8 (47.Kf3 Na4+=) 47...Ke6 (47...Ne4 48.Rb5 Kf6 49.Rb6 Kf7 50.Rc6=) 48.Rb5 (better 48.Rb6 Kd7 49.Kf3+/-) 48...Kd7?? (better 48...Ne4 49.g4 Nd6=) 49.Rc5+- d3 (49...Kd6 50.Rd5 Ke6 51.Kf3+-) 50.Rd5 Ke7 51.ed3 Ke6 52.Kf3 g5 (52...Kf6 53.Rd6 Kf7 54.Kg4+-) 53.d4 (53.Kg4 Kf6+-) 53...g4 (53...ed4 54.Rd4 h5 55.Rd5+-) 54.Ke3 Ke7 (54...ed4 55.Kd4 Kf7 56.Rf5 Ke6 57.Rh5+-) 55.Re5 Kd7 56.Kf4 Kc7 57.Kg4 Kb6 58.Kh5 Kb7 59.Kh6 Kb6 60.Kg5 Kb7 61.Kg4 Kb6 62.h4 Kb7 63.h5 Kb8 (63...Ka6 64.h6 Kb6 65.h7 Kb7 66.h8Q Kc7 67.Qg7 Kd6 68.Rc5 Ke6 69.Rc6) 64.h6 (64.Re7 Kc8 65.h6 Kd8 66.Rg7 Ke8 67.h7 Kf8 68.h8Q) 64...Kb7 (64...Kc7 65.h7 Kd6 66.h8Q Kc7 67.Re7 Kc6 68.Qc8 Kb5 69.Rb7 Ka5 70.Qa8) 65.h7 Kb8 (65...Kb6 66.h8Q Kc7 67.Re7 Kc6 68.Qc8 Kb5 69.Rb7 Ka5 70.Qa8) 66.h8Q (66.h8Q Kc7 67.Qg7 Kd6 68.Rc5 Ke6 69.Rc6; 66.Re7 Kc8 67.h8Q) 1-0. Zobbie (2405) - zumpili (2420), Rated Bullet game, lichess.org, 2021. (=1.a3 e5 2.b4 d5 3.Bb2 f6 4.d3)

    5.Nf3 ab4-/+ 6.ab4 Bb4 7.c3 Ra1 8.Ba1 Ba5 9.g3 Ne7 10.Bg2 0-0 11.0-0 Nbc6 12.Nbd2 Bg4 13.Qb3 Bb6 14.c4 Kh8 15.cd5 Qd5 16.Qd5 Nd5 17.Nc4 Bc5 18.h3 (18.h3 Be6 19.Rb1–+; 18.Rb1!? Ndb4 19.h3-/+). calu_mishu – Hartur, internet, 2006.

    4.d3 Bd6

    5.e3 Ne7 6.Nf3 Be6 7.Be2 0-0 8.0-0 Nd7 9.e4 c5=+ 10.bc5 Nc5 11.Nc3 Qa5 12.Re1 d4-/+ 13.Nb1 Rac8 14.Nh4? b5 15.Nd2 Na4–+ 16.Qb1?? Qd2 17.Bh5 Nb2 18.Qb2 Rc2 (18...Rc2 19.Qb5 Qf2 20.Kh1 Qh4–+) 0–1. pieeater – elcid10, ChessWorld.net, 2009.

    5.Nf3 Bf5 6.e3 Nc6 7.b5 Nce7 8.Be2 c6 9.a4 Qa5 10.Bc3 Bb4 11.Bb4 Qb4 12.Qd2 Qd2 13.Nbd2 e4 14.Nd4 ed3 15.cd3 Bg6 16.0-0 Nf5 17.N2f3 Nge7 18.bc6 bc6 19.Rfc1 0-0 20.Nc6+/– Nc6 21.Rc6 Rfd8 22.Rac1 d4 23.e4 Nh6 24.R6c4 Bf7 25.Rd4 Rdc8 26.h3?? Rc1–+ 27.Kh2 Ra1 28.e5 fe5 29.Ne5 Be8 30.Bf3 Rb8 31.Bd5 Kh8 32.g4 Ra4 33.Ra4 Ba4 34.f4 g6 35.Kg3 Ng8 36.g5 Ne7 37.Bc4 Bb5 38.Nf7 Kg7 39.Nd6 Bc4 40.Nc4 Nf5 41.Kf2 Rb3 0–1. bratek55 – michalv4 (1630), internet, 2011.

    4.d4 a5

    5.b5 (--> 1.b4 e5 2.Bb2 f6 3.a3 a5 4.b5 d5 5.d4).

    5.de5 ab4 6.e3 Nc6 7.Bd3 Be6 8.ef6 Nf6 9.Nf3 Bd6 10.0-0 0-0 11.Ng5 Bh2=+ 12.Kh1 Ne4 13.Be4 Qg5 14.Bh7 Kh7 15.Kh2 Ne5 16.f4?? Qh4 17.Kg1 Ng4 18.Rf3 Qh2 19.Kf1 Ne3!! 20.Re3 Qh1 21.Ke2 Bg4 22.Rf3 Qg2 23.Ke3 Rae8 24.Kd4 0–1. Paz01 – mucho, 2002.

    4.d4 Qd6

    5.de5+= fe5 6.e4 d4 7.c3 Nc6 8.cd4 Nd4 9.Ne2+=.

    5.de5+= fe5 6.e4 d4 7.Nf3 Be7 (7...a5!? 8.b5 (8.c3 ab4 9.cd4 ed4 10.Nd4 ba3 11.Ra3 Ra3 12.Ba3 c5=) 8...Nf6 9.c3+=; 7...Bg4 8.c3 Nc6 9.b5=) 8.c3+/– dc3 9.Nc3 c6 10.Ne2 Nd7 11.Ng3 Nh6 12.Bc4 Qd1 13.Rd1 Bf6 14.Rd6 Nb6 15.Bb3 Ke7 16.Rd3 Nd7 17.0-0 g6 18.Rfd1 Re8 19.Bc1 Ng8 (19...Nf7 20.Bf7 Kf7 21.Rd7 Bd7 22.Rd7 Re7 23.Rd6+–) 20.Rd6 Nb8 21.Be3 b6 22.Ng5 h6 (22...Kf8 23.Nh7 Kg7 24.Nf6 Nf6+–) 23.Ne6 Na6 24.Nd8 Bg7 (24...Nb8 25.Nc6 Nc6 26.Rc6 Kf8 27.Bg8 Kg8 28.Rf6 Kh7+–) 25.Rg6 (25.Rg6 Kf8 26.Nh5+–) 1–0. Rook,Ian – Edwards,MB, corr BFCC, 1999.

    5.de5+= fe5 6.e4 Nf6 7.ed5+/– c6 8.Qe2 Nbd7 9.dc6 bc6 10.Nf3 e4 11.Nc3 Qe7 12.Ng5 e3 13.Qe3 Qe3 14.fe3 Nb6 15.Bd3 h6 (15...a5 16.b5+–) 16.Bg6 Kd8 (16...Ke7 17.Nf7 Rg8+–) 17.Nf7 (17…Kc7 18.Nh8+–) 1–0. b4_player (2215) – lisarik (1905), GameColony.com, 2003.

    4.d4 Nd7

    5.Nc3 Ne7 6.e4 ed4 7.Nd5 Nd5 8.Qh5 g6 9.Qd5 (9…c5 10.Nf3+/–) 1–0. kamret (2200) – umamsaang (1830), GameColony.com, 2003.

    5.e3 Bd6 6.c4 c6 7.Nf3 e4= 8.Nfd2 Ne7 9.Qb3 0-0 (better 9...f5!?=) 10.Nc3 a5 (better 10...f5!? 11.cd5 cd5 12.Nd5 Kh8+/-) 11.cd5+- cd5 12.Nd5 Kh8 13.Ne4 Bb8 14.Ng3 (14.Ne7 Qe7 15.Bd3 f5+-) 14...ab4 (14...Nd5 15.Qd5 ab4 16.ab4 Ra1 17.Ba1+-) 15.Nb4 Nb6 16.Bd3 Na4 17.0-0 f5 18.Qc2 Nb2 19.Qb2 f4 20.Ne2 f3 21.gf3 Rf3 22.Be4 Rh3 23.Bg2 (better 23.Ng3+-) 23...Bh2+= 24.Kh1 Rh6 25.Be4 (25.Rfd1 Qe8+=) 25...Bh3 (25...Ng6 26.Rfc1 Qh4 27.Rc8 Rc8 28.Nc3-+) 26.Kh2 (better 26.Rfd1!?+=) 26...Bf1=+ 27.Kg1 Be2 28.Qe2 Qd6 (28...Ra5 29.Qf3=+) 29.Bb7= Rf8 30.f4 Nf5 (30...Rf4!? 31.ef4 Qd4 32.Kf1 Qa1 33.Kf2 Qd4 34.Kf3 Rh3 35.Kg2 Re3-+) 31.Bg2=+ Re6 32.Nc2 (32.Nd5 Ne3 33.Re1 Rfe8-/+) 32...Rfe8 (better 32...Ne3 33.Ne3 Qd4-/+) 33.Rc1? (33.d5 Rg6 34.Qb5 Qd8=+) 33...Nd4?? (better 33...Ne3 34.Ne3 Qd4-+ (34...Re3?? 35.Qe3 Qd8 36.Be4+-)) 34.Nd4= Qd4 35.ed4 Re2 36.d5 (36.a4 g6=+) 36...Ra2-/+ 37.Rc3 g6 38.d6 (38.Kh2-/+) 38...Rd8?? (better 38...Re1 39.Bf1 Rd2-+) 39.Rd3= Kg7 40.Bc6 White prepares d7 (40.Kh2 h5=) 40...Kf6 41.a4 Kf5 42.Rd4 h5 43.d7 h4 44.Bg2 (44.Be4 Kf6=) 44...Kg4=+ 45.f5 Kg3 (better 45...Kf5 46.Bh3 Kg5 47.Rg4 Kh5-/+) 46.Rd3+= Kf4 47.fg6 Ra4 (47...Kf5 48.g7 Kf6 49.Rd4 Kg7 50.Bh3=) 48.g7 Ra6?? (48...Ke5 49.Re3 Kd6+/-) 49.g8Q Rg8 (49...Rg8 50.d8Q Double attack (50.d8Q Decoy)) 50.d8Q Rd8 51.Rd8 Ra1 52.Kh2 Ra3 53.Rg8 Kf5 (53...Rd3 54.Rf8 Kg4 55.Rc8=) 54.Bh3+= Kf6 55.Rg4 Ra2 56.Bg2 Rb2 57.Rh4 Kg5 58.Rh8 Kf5 59.Rg8 Kf6 60.Kg3 Kf7 61.Rg4 Kf6 62.Bf3 Ke5 63.Rg8 Kf6 64.Kf4 Kf7 65.Rg1 Ke7 66.Be4 Kf6 67.Rg6 Kf7 68.Ra6 Ke7 69.Ke5 Rb5 (69...Rd2 70.Rh6+/-) 70.Bd5+- Rc5 71.Ra7 Kd8 72.Kd6 (72.Kd6 Rc2 73.Rd7 Ke8 74.Re7 Kd8 75.Rg7+-) 1-0. zembelek (2145) - amayak (2115), Rated Blitz game, lichess.org, 2013.

    4.e3 b5

    5.Bb5+/– c6 6.Be2 Ba6 7.Ba6 Na6 8.Qe2 Qc8 (8...Nc7 9.f4 e4 10.Nh3+/–) 9.c4 Qb7 10.Nc3 Rb8 11.cd5 Nb4? (better is 11...c5 12.b5 Nc7+/–) 12.ab4+– Qb4 (12...cd5 13.b5+–) 13.Rb1 (13.Ba3 Qa5 14.Qg4 cd5+–) 13...a5 (13...cd5 14.Bc1 (14.Nd5?! Qe4 15.Nc3 Qg2+–) 14...Qd6 15.Rb8 Qb8 16.Nd5+–) 14.dc6 Kd8 (14...Qd6 15.Qc4 Rb4 16.Qd5+–) 15.Nf3 (better is 15.c7 Ke8 16.Qa6 Ne7 17.cb8R Qb8 18.Qa5 Qd8 19.Qd8 Kd8+–) 15...Kc7 (15...Rc8+–) 16.0-0 (better is 16.Nd5 Kc6 17.Nb4 Bb4 18.Qa6 Kd5+–) 16...Ne7 17.Rfc1 Nc6 (17...Rb6+–) 18.Nd5 Kd6 19.Nb4 Nb4 20.Ba3 (20.Be5 Ke6 21.Qc4 Ke7 22.Bb8 h6 23.Nd4 Kd8 24.Qc8 Ke7 25.Qe6 Kd8 26.Rc8) 20...Ke6 21.Bb4 (21.Qc4 Kd7 22.Qc7 Ke8 23.Qb8 Kf7+–) 21...ab4 22.Rc6 (22.Qc4 Kd7 23.Qd5 Bd6 24.Rc6 Rb5 25.Qd6 Ke8 26.Qe6 Kd8 27.Rc8) 22...Kf5 23.g4! Kg4 (23...Kg4 24.Ne5 Mate attack) 24.Ne5 Kf5 25.d4 (25.Qg4 Ke5 26.Qe6) 25...g5 (25...fe5 26.Qh5 Ke4 27.Qe5 Kd3 28.Qf5 Kd2 29.Rc2) 26.Qg4 1–0. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

    5.Bb5+/– Bd7 6.Bd7 Nd7 7.d3 Nb6 8.Nf3 Na4 9.Qc1 Nb2 10.Qb2 a5 11.b5 a4 12.Nbd2 Ne7 13.0-0 Ng6 14.Rfd1 Bd6 15.c4 d4 (15...Be7+–) 16.ed4 ed4 17.Qd4 Be5 18.Qd8 (better is 18.Qe4!? 0-0 19.d4 f5+–) 18...Rd8 19.Ne5 Ne5 20.Nf3 Nf3 21.gf3 0-0 22.Rd2 Rd4 23.Rad1 Rf4 (23...Rfd8!?+/–) 24.Kg2+– h5 25.h3 g5 26.d4 Kh7 (26...Rd8 27.c5+–) 27.c5 Rg8 Black plans g4 28.d5 (better is 28.b6 cb6 29.cb6 Kg6+–) 28...Rg7? (28...Rc4 29.c6 Rc5+–) 29.d6 cd6 30.cd6 g4 (30...Rd7 31.b6 Rc4 32.b7 Rb7 33.d7+–) 31.fg4 hg4 32.hg4 (32.d7 gh3 33.Kh2 Rg2 34.Kh3 Rg8+–) 32...Rfg4 (32...Rgg4 33.Kf1 Rg8 34.d7+–) 33.Kf1 (better is 33.Kf3 R4g5 34.d7 Rg8+–) 33...Rg1 34.Ke2 R1g2 (34...Rd1 35.Rd1 Rd7+–) 35.d7 Re7 36.Kf3 Rg5 37.Rh1 Kg7 38.d8Q Rf5 39.Kg2 Rg5 40.Kf1 Rf7 (40...Kg6 41.Qe7 Rh5 42.Qe8 Kf5 43.Rd5 Kf4 44.Qe3 Kg4 45.Qe4) 41.Rg1 (41.Qh8 Kg6 42.Rh6 Kf5 43.Qc8 Ke5 44.Qc5 Ke6 45.Qd6 Kf5 46.Qd5 Kf4 47.Rd4) 41...Rg1+– 42.Kg1 Kh6 43.Qh8 Rh7 44.Qf6 Kh5 45.Kg2 1–0. Fournier,Frederic (1920) – ULISESGRIEGO, Active, 2009.

    4.e3 b6

    5.c4 Bb7 6.cd5 Bd5 7.Nf3 c5 8.bc5 bc5 9.Nc3 Nc6 10.Bb5 Rc8 11.Qa4 Qd7 (11...Bf3 12.gf3 Qd7 13.Ne4+/–) 12.0-0 (12.Nd5 Qd5 13.e4 Qe6+–) 12...Nge7 (better is 12...Bf3 13.gf3 Nge7+=) 13.d4?? (13.Nd5 Qd5 14.d3 Qd7+/–) 13...ed4?? (13...Bf3!? 14.gf3 cd4+=) 14.ed4 (better is 14.Nd5 Nd5 15.ed4+/–) 14...c4?? (better is 14...Bf3 15.gf3 cd4=) 15.Nd5+– Nd5 16.Rfe1 Kf7 17.Bc4 Kg6 18.Qb3 Rb8 (18...Rd8 19.Bb5 Rc8 20.Rac1+–) 19.Qa2 (better is 19.Nh4 Kh6 20.Qf3 g6 21.Bc1 Kg7 22.Bd5 Nd4+–) 19...Nf4 20.g3 (20.Bc1!? Bd6+–) 20...Nh3 21.Kg2 Ng5? (21...Nf4 22.Kh1 (22.gf4?! Qg4 23.Kf1 Qf3+/–) 22...Qg4 A) 23.gf4?! Qf3 24.Kg1 Qg4 25.Kf1 Qh3 26.Ke2 Qh5 (26...Qh2?? 27.Bd3 Kh6 28.Rh1+–) 27.Kd3 Kh6= (27...Qh2?? 28.Bf7 Kh6 29.Rh1+–); B) 23.Nh4 Kh6 24.Re4+– (24.gf4?! Qh4 25.Re3 Nd8+/–)) 22.Ng5 Kg5 (22...fg5 23.Re6 Qe6 24.Be6+–) 23.h4 (better is 23.Bc1 Kg6 24.Be6 Qe6 25.Qe6+–) 23...Kg6? (23...Kh5 24.Be6 Rb2 25.Qb2 Qd4 26.g4 Kh6 27.Qc1 g5 28.hg5 fg5 29.Qc6+–) 24.Bd3 (better is 24.Qb1 Kh5 25.Qd1 Kh6 26.Qd2 g5 27.hg5 fg5 28.Re6 Qe6 29.Be6+–) 24...f5?? (24...Kh5+–) 25.Qb1 (25.Re6 Kf7 26.Rae1+–) 25...Bd6?? (25...Qd5 26.Kh3 Nd4+–) 26.g4 (better is 26.Bf5 Qf5 27.Re6 Kf7 28.Qf5 Kg8 29.Qd5 Kf8 30.Qd6 Kf7 31.Qd7 Kf8 32.d5 Ne5 33.Be5 Rb1 34.Qg7) 26...Rhf8?? (better is 26...Ne7 27.gf5 Kf6 28.Re6 Kf7+–) 27.Bf5 (worse is 27.gf5 Kf6 28.Re6 Kf7+–) 27...Rf5 28.gf5 Qf5 (28...Kf7 29.Qa2 Kf8 30.Qe6+–) 29.Qf5 (better is 29.Re6! Kf7 30.Qf5 (30.Rd6 Qg4 31.Kf1 Qh3 32.Ke1 Re8 33.Kd2 Na5 34.Rd7 Kg8 35.Rg7 Kg7+=) 30...Kg8 31.Rd6+–) 29...Kf5 30.Bc3 Rb3 31.Rec1 (31.Re3 Bf4 32.Rf3 Ke4+–) 31...Ne7 (31...Ba3 32.Rab1 Rb1 33.Rb1+–) 32.Rab1 (better is 32.Bb4!? Bb4 33.ab4 Rb4 34.Ra7 Ng6+–) 32...Ra3 33.Ra1 Nd5 34.Ra3 Ba3 35.Ra1 Nf4? (better is 35...Be7 36.Ra5 Ke6+–) 36.Kf3 Be7 (36...Bd6 37.Ra5 Ke6 38.Ke4+– (worse is 38.Ra7 Nd5+–)) 37.Ra7 (better is 37.Ra5 Kg6 38.Kf4 Bh4 39.Ra6 Kf7 40.Ra7 Kg6 41.d5+–) 37...Ng6 (37...Nd5 38.h5 g6+–) 38.h5 (38.h5 Nh4 39.Ke2+–) 1–0. Fournier,Frederic – kazzykampeon (1615), Active, 2008.

    5.c4 c6 6.cd5 cd5 7.Nf3 Nh6 (7...Nd7 8.Nc3 Bb7 9.Qb3=) 8.Bb5 Bd7 9.Bd7 Qd7 (worse is 9...Kd7 10.Qb3 Ke8 11.Nc3+/–) 10.Nc3 Nc6 11.0-0 Be7 12.Rc1 Rc8 (12...e4 13.Ne1 Rd8 14.f3+=) 13.d3 0-0 (13...d4 14.ed4 Nd4 15.Nd4 ed4 16.Qh5 Nf7 17.Nb5+/–) 14.Re1 (14.Qb3 Bd6+/–) 14...Nf5 (14...Rfd8 15.e4 d4 16.Nd5=) 15.e4 Nfd4 (15...de4!? 16.de4 Qd1 17.Rcd1 Nd6+=) 16.Nd5 Nf3 17.Qf3 Nd4?? (better is 17...b5+/–) 18.Bd4+– (18.Ne7?! Qe7 19.Bd4 ed4+/–) 18...ed4 (18...Bb4 19.ab4 ed4+–) 19.Ne7 (better is 19.Qf5 Rc1 20.Rc1+– (20.Qd7?? Re1)) 19...Qe7+/– 20.Qf5 Rc3 21.Qd5 Kh8 22.Rc3 dc3 23.Qc4 Qd7 24.Qc3 Rc8 25.Qd2 Rd8 26.Rd1 Qd4 27.g3 h6 28.h4 (28.Qe3 a5+–) 28...b5 (28...Rc8 29.a4+–) 29.Qe3 Qb2 (better is 29...Qe3 30.fe3 Rc8+–) 30.Qc1 (better is 30.d4+–) 30...Qc1+/– 31.Rc1 Rd3 32.Ra1 Kg8 33.Kg2 Kf7 34.a4 Rd4 (34...a6!? 35.ab5 ab5+–) 35.ab5+– Rb4 36.Ra7 Kg6 37.Ra5 Re4 38.b6 Rb4 39.Ra6 (better is 39.h5!? Kf7 40.Ra7 Ke6 41.Rg7 Rb6 42.Rh7+–) 39...Kf5+/– 40.Kf3 g6 41.Ke3 Ke5 42.f4 (42.Kd3 Kd5+/–) 42...Kd5 (better is 42...Kf5!?+=) 43.b7! Rb3 (43...Rb7 44.Rf6 Discovered attack (44.Ra5 Decoy)) 44.Kf2 Rb2 45.Kf3 Rb3 46.Kg2 Rb2 47.Kh3 g5 (better is 47...Ke4!?+/–) 48.Rf6 gh4 49.Kh4 Rb7 50.Rh6 Rb1 51.Kg5 Rb5 52.Rf6 Ke4 53.Kg6 (better is 53.Kg4!? Rb3+–) 53...Kf3 54.Rf5 Rb6 55.Rf6 Rb5 56.Rf5 Rb6 57.Rf6?? (better is 57.Kg5+–) 57...Rb5= ½–½. Fournier,Frederic (1770) – rabvik (1735), Active, 2012.

    5.Nf3 Bb7 6.d4 Nc6? 7.de5+/– Ne5 8.Be5 fe5 9.Ne5 Qf6 10.f4 Bd6 11.Qd4 Ne7 12.Nf3 Qg6 13.Qd3 Qf6 14.c3 0-0 15.Nbd2 Rab8 16.g3 c5 17.Rc1 Rfd8 18.Bg2 c4 19.Qd4 Qe6 20.Ng5 Qg6 21.Bh3 (better is 21.Nc4!? dc4 22.Qc4 Kf8 23.Bb7 Rb7 24.Ne6 Ke8 25.Nd8+–) 21...Bc8 22.Bc8 Rbc8 23.Nf1 Bb8 24.Qd2 Nf5 25.Kf2 h6 26.Nf3 a5 27.Nd4 Nd4 28.Qd4 (worse is 28.cd4 Qe4 29.Rg1 Bd6+=) 28...Ba7 29.h3 Rd7 30.b5 a4 31.Qd1 Qe4 32.Nd2 Qg6 33.Qa4 Qd3? (better is 33...Bb8!?+/–) 34.Qc2+– Ra8 35.Qd3 cd3 36.Rhd1 Bb8 37.Nb1 Ra6 (37...Ra5+–) 38.ba6 1–0. Otto,Norbert – Stevenson,Walter, OP–2011–0-01862, 2011.

    5.Nf3 e4 6.Nd4 c6 7.c4 Ba6 8.Be2 Nh6 9.cd5 Be2 10.Qe2 cd5 11.Qb5 Qd7 12.Qd7 (better is 12.Nc3 Nf7 13.Qd5 Qd5 14.Nd5+–) 12...Nd7= 13.Nc3 Bd6 (13...Ne5 14.0-0 Nd3 15.Rab1=) 14.Nd5 0-0 (14...Ne5 15.Nb5 Nd3 16.Ke2+=) 15.Ne6 Rf7 16.0-0 (16.d4!?+/–) 16...Re8 17.Nec7 Re5? (better is 17...Rd8 18.Rfc1 Nf8+=) 18.Be5+– Be5 19.Rac1 Bb2 (19...Bc7 20.Rc7 Ne5 21.Rfc1+–) 20.Rc2 Ba3 21.Ne6 Ne5 (21...Nf8 22.Rc8 Nf5+–) 22.Rc8 Rf8 23.Rf8 1–0. Fournier,Frederic (1690) – edgar595 (1660), Active (5/0), 2005.

    4.e3 Qd6

    (--> 1.b4 d5 2.Bb2 Qd6 3.a3 e5 4.e3 f6).

    5.Nf3 (--> 1.b4 d5 2.Bb2 Qd6 3.a3 e5 4.Nf3 f6 5.e3).

    4.e3 Nd7

    5.c4 dc4 6.Bc4 b6 7.d3 Bb7 8.Nf3 e4? (8...a6!?+=) 9.de4 Be4 10.Nbd2 Bb7 11.0-0 Ne7 12.Rc1 Ne5? (better is 12...Nf5!?+/–) 13.Ne5 (13.Be5 fe5 14.Ne5 Bd5 15.Qh5 g6 16.Ng6 Ng6 17.Bd5 Rb8+–) 13...fe5 14.Be5 Nc6?? (14...Bc6 15.Qh5 Ng6 16.Bb3+–) 15.Bb2 (better is 15.Bg7!? Qd7 16.Bh8 0-0-0+–) 15...Bd6 (15...Qg5 16.Nf3 Qf5 17.Qd5 Qd5 18.Bd5+–) 16.Nf3 (16.Bg7 Rf8 17.Qh5 Ke7 18.Qh7 Qe8+–) 16...a5? (16...Qd7 17.Ng5 Nd8 18.Qh5 g6 19.Qh4+–) 17.Qd5 (better is 17.Bg7 Rf8 18.Bf8 Kf8 19.Qd5+–) 17...Qf6 (17...Qd7 18.Qe4 Qe7+–) 18.Bf6 gf6 19.Qf7 (19.Qf7 Kd8 20.Qf6 Kc8 21.Qh8 Kd7 22.Qg7 Kc8 23.Bb5+–) 1–0. Fournier,Frederic (1830) – mate, Active, 2008.

    5.c4 c6 6.cd5 cd5 7.Nf3 Bd6 8.d3 Ne7 9.Be2 0-0 10.Nbd2 a6 11.0-0 Ng6 12.Rc1 Qe7 13.Qb3 Qf7 14.e4 (14.Rc2 a5=) 14...d4 15.Qf7 Kf7 16.g3 Nb6 17.Bd1 Be6 18.Bb3 Rac8 19.Be6 Ke6 20.Rc8 Rc8 21.Rc1 Rc1 22.Bc1 Na4 23.Nc4 Bc7 24.Kf1 Nc3 25.Ke1 b5 26.Nb2 Ne7 27.Nd1 Nd1 28.Kd1 h6 29.Nd2 f5 30.f3 Bd6 31.Nb3 Nc8 32.h3 Nb6 33.g4 fe4 34.fe4 Na4 35.Na5 Kd7 36.Nb7 Be7 (36...Bc7 37.g5 Kc6 38.g6-/+) 37.Bd2= Nb2 38.Kc2 Na4 39.Kd1 Nb6 40.Na5 Nc8 41.Nb3 Bd6 42.Nc1 Ne7 43.Ne2 Ng6 44.Ng3 Nh4 45.Nf5 Bf8?? (45...Nf5 46.gf5 Ke7 47.h4=) 46.Ke2 (46.Nh4 Be7 47.Nf5 Bf6+–) 46...Ke6?? (better is 46...Nf5 47.gf5 Be7=) 47.Nh4+– Be7 48.Nf5 Bf6 49.h4 White intends g5 49...g6 (49...Kf7 50.Bc1+–) 50.Nh6 Bh4 51.g5 Kd6 52.Kf3 Ke7 53.Kg4 Bf2 54.Kf3 Bh4 55.Ng8 (55.Ng4 Kd6+–) 55...Kf7 (55...Ke6 56.Kg4 Bf2 57.Nf6+–) 56.Nf6 Ke6 57.Ne8 (better is 57.Ng4+–) 57...Kd7 58.Nf6 Kc6?? (58...Ke6 59.Kg2 Kd6+–) 59.Kg4 Bf2 60.Kf3 Bh4 61.Kg4 Bf2 62.Kf3 (better is 62.Nh7+–) 62...Bh4= 63.Kg4 ½–½. Fournier,Frederic – estabaganado (1935), Active, 2008.

    5.c4 c6 6.cd5 cd5 7.Nf3 Ne7 8.Bb5 (8.d4 e4 9.Nfd2 Kf7+=) 8...a6 9.Ba4 b5 10.Bb3 Bb7 (10...Nb6 11.d3=) 11.0-0+= Nb6 12.d3 Rc8 13.Nc3 Ng6 14.Rc1 Be7 15.Qe2 (15.e4 de4 16.Ne4 Nf4 17.Rc8 Qc8=) 15...0-0 (15...Qd7 16.Rc2=) 16.Ne4 (16.h4 Qd7+=) 16...Kh8 (16...Na4 17.Ba4 Rc1 18.Rc1 de4 19.Bb3 Bd5 20.Bd5 Qd5 21.de4 Qe4 22.g3=) 17.Nc5 Bc5 18.bc5 Na4 19.Ba4 ba4 20.d4 (20.Rfd1 Qc7+=) 20...e4 21.Nd2 Qa5 (21...Rb8 22.Ne4 de4 23.c6+=) 22.Bc3+/- Qc7 (22...Qb5!? 23.Rfe1 Bc6+=) 23.Rb1 Ra8 24.Rb6 Ra7 25.Nb1 Rfa8 (25...Ne7 26.Bd2+/-) 26.Ba5+- Qc8 (26...Ne7 27.Nc3+-) 27.Rd6 Nf8? (27...Bc6 28.Rd8 Qd8 29.Bd8 Rd8+-) 28.Bb6 Bc6 29.Ba7 Ra7 30.Nc3 Rd7 31.Rd7 Qd7 (31...Nd7 32.Qg4+-) 32.Qa6 h5 (32...Ne6 33.Rb1 Kg8 34.Rb8 Kf7 35.Nb5 Bb5 36.Rb5+-) 33.Rb1 Ne6 (33...Ng6 34.Nb5 Ne7 35.Na7+-) 34.Rb6 Nd8 (34...Nc7 35.Rb8 (35.Rc6?! Na6 36.Ra6 Qc8+-) 35...Kh7 36.Qc8+-) 35.Rb8 Kh7 36.Qc8 (36.Qc8 Ne6 37.Qd7 Bd7 38.Nd5+-) 1-0. PEREIRA – Almensaar, internet, 2021.

    5.Nh3 Bd6 6.f4 (6.c4 dc4 7.Bc4 Nb6 8.Bg8 Rg8 9.Qh5 g6 10.Qh7 Be6=) 6...Ne7=+ 7.Qh5 Kf8 (7...g6 8.Qf3=+) 8.c4 Qe8? (8...g6 9.Qf3 e4 10.Qf2+=) 9.Qf3?? (better 9.Qe8 Ke8 10.c5 Bc5 11.bc5 ef4 12.c6 (worse 12.ef4 Nc5 13.Nf2 Kd8+/-) 12...bc6 13.Nf4+- (13.ef4?! Nc5+=)) 9...e4= 10.Qg3 (10.Qe2 c5 11.Nc3 cb4=+) 10...c6 (10...dc4 11.Bc4 c5 12.Bc3=+) 11.Nc3 dc4 (11...Nf5 12.Qf2 dc4 13.g4=) 12.Bc4 (12.Nf2 Nf5 13.Qh3 Nb6+=) 12...Ng6 (12...Nf5 13.Qf2=) 13.Qf2 (13.Nf2 Nb6 14.Ba2 f5+=) 13...Qe7 (13...a5 14.Be2=) 14.Qe2 (14.Be2!?+=) 14...Nb6=+ 15.Nf2 Nc4 16.Qc4 e4 becomes the focus of attention 16...Be6 (better 16...f5!?=) 17.Qe4+= Rd8 (17...f5!? 18.Qf3 Kf7+=) 18.f5+/- Bf7? (better 18...Bd5 19.Nd5 cd5+/-) 19.fg6+- Bg6 20.Qe7 Be7 21.Ke2 Bd3 (21...Bh5 22.g4 Bf7+-) 22.Nd3 c5 (22...Kf7 23.b5+-) 23.Nf2 (better 23.bc5!? b6 24.cb6 ab6+-) 23...cb4 24.ab4 a6 25.b5 Kf7 (25...ab5 26.Nb5 Kf7 27.e4+-) 26.ba6 ba6 27.Ra6 Rd7 28.Rha1 Rhd8 29.Bc1 Bb4 30.Ra7 Bc3 31.dc3 Ra7 (31...Ke8 32.e4+-) 32.Ra7 Kg6 33.Ba3 Rc8 34.Nh3 Rc4 (34...Kh6 35.Nf4 g5 36.Nd5+-) 35.Nf4 Kf5 36.Bf8 (better 36.Kf3 Rf4 37.ef4+-) 36...Ke4 (36...g5 37.Ra5 Kg4 38.Nd5+-) 37.Ra5 (37.g4 Ke5 38.Ra5 Ke4 39.Nd3 Rc5 40.Rc5 f5 41.Re5) 37...Rc3+- 38.Ra4 Ke5 39.Kf3 Kf5 (39...f5 40.Ra6 Re3 41.Ke3 g5 42.Bg7) 40.Ra5 Rc5 41.Rc5 1-0. FeegLood (2845) - abulia (1975), lichess.org, 2015.

    4.e4 Be6

    5.ed5 Bd5 6.Nc3 Bc6 7.b5 Bd7 8.d4 Bd6 9.Nf3 ed4 10.Qd4 Qe7 11.Be2 Nh6 12.Nd5 (better 12.Rd1+=) 12...Qf7? (12...Qe6 13.0-0-0 A) 13...Qe2? 14.Rhe1 Qe1 15.Re1 (15.Ne1?! Bb5 16.Nf6 gf6 17.Qe3 Kd7+-) 15...Kd8 16.Nf6 Bb5 17.Ne4+-; B) 13...Nf5+/-) 13.Bc4 (13.Qe4 Qe6 14.Nf6 gf6 15.Qb7 c5+-) 13...Be6 (13...Qg6 14.0-0 Nf5 15.Qe4 Ne7 16.Nf6 gf6 17.Qb7+-) 14.Qe4 (14.Nc7 Qc7 15.Be6 a6+-) 14...0-0?? (better 14...Kd7 15.Ne3 c6+/-) 15.Nf6!+- (15.Nf6 gf6 16.Be6+- (16.Qe6?! Qe6 17.Be6 Kg7+-)) 1-0. black_bishop_88 (2640) - Kleerkast (2275), Quarantε³ne-Bundesliga Team Battle, lichess.org, 2020. (=1.a3 e5 2.b4 d5 3.Bb2 f6 4.e4)

    5.ed5 Bd5 6.Nc3 Bf7 7.Nf3 Nd7 8.d4 Bd6 (8...Qe7 9.Nb5 Kd8 10.de5+=) 9.Ne4+= Ne7 (9...Qe7 10.Bd3+=) 10.de5 Be5 11.Ne5 Ne5 12.Bb5 c6 13.Nd6 Kf8 14.Be2 Be6 (better 14...b6!?+=) 15.Nb7+- Qc7 16.Nc5 Bf7 (16...Bf5 17.0-0+-) 17.Be5 fe5 18.Qd7 Rc8? (18...Qd7 19.Nd7 Kg8 20.Ne5 Bd5+-) 19.Ba6 Qd7 20.Nd7 (20.Nd7 Ke8 21.Bc8+-) 1-0. PEREIRA – Bleikut, internet, 2021.

    4.Nf3 b5

    5.d3 d4 6.c3 c6 (6...dc3!? 7.Bc3 a5 8.ba5 Nc6=) 7.cd4+– e4? (better 7...ed4 8.Nd4 a5 9.ba5 Qa5 10.Nc3 Bd6+–) 8.de4+– Bd6 (8...a5 9.ba5 f5 10.Nc3 fe4 11.Ne4+–) 9.e3 Ne7 10.Be2 0-0 11.0-0 Ng6 (11...a5 12.Qb3 Kh8 13.Nc3+–) 12.Nbd2 a5 13.Re1 (13.Qb3 Kh8+–) 13...ab4 14.ab4 Ra1 15.Qa1 (15.Qb3 Kh8 16.Ra1 Qe7+–) 15...Be6 (15...Bb4 16.Qa2 Kh8 17.Ba3+–) 16.h3 (16.Bc3 Qe7+–) 16...Nd7 (16...Bb4!? 17.Bc3 Bd6+–) 17.d5 cd5 18.ed5 (18.Nd4 Bf7 19.Qa3 Re8+–) 18...Bd5 19.Bb5 (19.Qa5 Qa5 20.ba5 b4+–) 19...Bb4+– 20.Bc3 Bc5 21.Rd1 (21.e4 Bf7 22.Rc1+–) 21...Nge5 (21...Qe7 22.Bc4 Bc4 23.Nc4+–) 22.Nb3 (22.Be5 fe5 23.Qc3 Be7+–) 22...Qb6? (better 22...Bf3 23.gf3 Qc7 24.Bd7 Nd7 25.Nc5 Nc5+–) 23.Ne5 (23.Be5 Bb3 24.Bd7 Bd1 25.Qd1 fe5+–) 23...Bb3 (23...fe5 24.Rd5 Qb5+–) 24.Rd7?? (24.Nd7 Qb5 25.Qb2+–) 24...Qb5=+ 25.Ra7?? (better 25.Nd3 Qd7 26.Nc5=+) 25...Ba7–+ (25...fe5?! 26.Qa5 Qa5 27.Ra5-/+) 26.Nf3 Qc4 (26...Qd7 27.Bd4 Bb8 28.e4–+) 27.Nd4 (27.Nd2 Qf7 28.Nb3 Qb3 29.Qa7 Qc3 30.Qa2 Kh8 31.g4–+) 27...Rd8 (27...Bb8 28.Nb3 Qb3 29.Bd4–+) 28.Nb3? (28.Qa7 Qc3 29.Qb6 Rd4 30.ed4–+) 28...Qb3 29.Qa7 Rd1 (29...Qc3 30.Qe7 Rd1 31.Kh2 Qe5 32.Qe5 fe5 33.Kg3–+) 30.Kh2 Qc3 31.Qa2 0–1. SieStein – udarowy, lichess.org, 2019.

    5.e3 c5 (better is 5...c6!?=) 6.bc5 a6 7.d4 e4 8.Nfd2 f5 (8...Nc6 9.a4 b4 10.Be2+/–) 9.c3 (9.a4 ba4 10.c4 Nf6+–) 9...Nf6 10.Be2 g5 (10...Be7 11.a4 ba4 12.0-0+/–) 11.0-0 g4 (11...Nc6+/–) 12.g3 (better is 12.a4!? ba4 13.c4+–) 12...h5+= 13.Re1 (13.a4 ba4 14.c4 h4+/–) 13...Nc6 14.Bf1 Nd7 Black intends h4 (better is 14...h4!?=) 15.a4+/– h4? (better is 15...ba4!? 16.c4 Nf6+/–) 16.ab5+– hg3 17.fg3 (17.bc6 gf2 18.Kh1 Rh2 19.Kh2 Qh4 20.Kg2 Qh3 21.Kf2 g3 22.Ke2 Qh2 23.Bg2 Qg2) 17...Ncb8 (17...Ne7 18.c4+–) 18.ba6 (18.c4!? Nf6+–) 18...Na6 19.c4 Bb7? (19...Rb8 20.Bc3 Nc7+–) 20.cd5 Bd5 (20...Nc7 21.c6 Ra1 22.Ba1 Ba8 23.cd7 Qd7+–) 21.Ra6 Ra6 22.Ba6 Qg5 (22...Rh6 23.Bf1+–) 23.Bb5 (23.c6 Nb6 24.c7 Bd6 25.c8Q Nc8 26.Bc8 Qh5 27.Qa4 Kf8+–) 23...Qh5 24.Re2 Be7 (24...Bh6 25.Qe1 Ke7+–) 25.Nc3 Bf7 (25...Be6 26.d5 0-0 27.c6+–) 26.c6 (better is 26.Bd7 Kd8 27.Qa4 Bg5+–) 26...Nb6 27.c7 Kf8 28.Nf1 White prepares d5 (28.Na4 Nc8 29.d5 Rh7+–) 28...Kg7 (28...Bd6 29.d5 Bc7 30.Qd4+–) 29.Na4 (29.d5 Bf6+–) 29...Na4 (29...Nd5 30.Bd7 Nc7 31.d5 Bf6 32.Bf6 Kf6 33.Qd4 Kg6 34.Qb6 Ne6 35.Be6 Be6 36.Qe6 Kg7 37.Qe5 Kg6+–) 30.Ba4 Rc8 (30...Bf6 31.d5 f4 32.d6 Bb2 33.Rb2+–) 31.Qc2 (better is 31.d5 Kh6 32.d6 Bd6 33.Qd6 Qg6+–) 31...Be6 (31...Be8 32.d5 Bf6+–) 32.d5 Kf7 33.de6 Ke6 34.Qc4 (34.Qc4 Kd6 35.Rd2) 1–0. Fournier,Frederic (1640) – michloun (1635), Active, 2006.

    4.Nf3 b6

    5.d3 c5 6.b5 (6.bc5 bc5 7.Nbd2 Nc6=) 6...Be6 7.Nbd2 Bd6 (7...a6 8.ba6 Bd6 9.c4=) 8.c4= d4 9.e3 Ne7 10.Be2 h6 (10...de3 11.fe3 Nf5 12.Kf2=) 11.0-0 g5? (better is 11...a6!?=) 12.ed4+/– ed4 13.Ne4 (13.Nd4 cd4 14.Bh5 Bf7+/–) 13...Bf4 (better is 13...0-0!?+=) 14.Nf6+– Kf7 15.Nh5 Nf5? (better is 15...Bc7+–) 16.Nf4 gf4 17.Ne5 Kf6 18.Bf3 Ke5 (18...Nd7 19.Ba8 Qa8 20.Nc6+–) 19.Ba8 Kf6 20.Qf3 Re8 (20...Qd6 21.Be4+–) 21.Qf4 Rh8 (21...Qd6 22.Qf3 Kg7 23.Be4+–) 22.Rae1 (better is 22.g4 Qd6 23.Qf3 Nd7 24.gf5 Ne5+–) 22...Qe8 (22...Qd6 23.Qf3 Nd7+–) 23.Bd5 (23.Bd5 Bd5 24.cd5+–) 1–0. Wall,Bill – Gman, internet, 2001.

    5.e3 a5=.

    5.e3 c5 6.c3 e4 7.Ng1 c4 8.Be2 f5 9.Bh5 g6 10.Be2 Nf6 11.Nh3 Bd6 12.0-0 0-0 13.f3 Qc7 14.fe4 (better is 14.f4!?-/+) 14...Bh2–+ 15.Kh1 Ne4 16.Nf2? (better is 16.Rf3–+) 16...Ng3 17.Kh2 Nf1 (17...Ne2 18.Kh1 Ng3 19.Kg1 Nf1 20.Qf1–+) 18.Kg1 Nh2 19.d3 cd3 (19...Be6 20.dc4 dc4 21.Qd4–+) 20.Nd3 (better is 20.Qd3!? Qe5 21.Qd2-/+) 20...Qg3 21.Nf4 Qe3 22.Kh2? (22.Kh1 Bb7 23.Nd5–+) 22...Qf4 23.Kg1 Be6 24.Bf3 Rd8 25.Nd2 (25.Qe1 Kf7–+) 25...Bf7 26.Bc1 (26.Nf1 Nc6–+) 26...Qh4 (26...Qe3!? 27.Kh1 Qc3 28.Nb3–+) 27.Nb3 Nc6 28.Be3 Ne5 29.Bf2 Nf3 30.Qf3 Qe4 31.Qe4 (31.Qg3–+) 31...de4 (worse is 31...fe4 32.Bd4–+) 32.Kf1 (32.Nd4–+) 32...Bb3 33.Ke2 f4 34.Rb1 (34.Bd4 Bc4 35.Kf2 e3 36.Kg1 Rd5–+) 34...Bc4 35.Ke1 e3 36.Bh4 Rd2 37.Bg5 Re2 (37...Rg2 38.Kd1 e2 39.Ke1 Rg1 40.Kf2 Rb1 41.Kg2 Rg1 42.Kh3 e1Q 43.Bf4 Be6 44.Kh2 Qf2) 38.Kd1 Rg2 39.Bf4 (39.Rb2 Rg1 40.Kc2 Rg5 41.Rb1 Rg2 42.Kd1 Rd8 43.Kc1 Rdd2 44.b5 Rg1) 39...Rd8 40.Kc1 (40.Bd6 Rd6 41.Kc1 Rdd2 42.b5 Rg1) 40...Rg1 41.Kb2 Rd2 42.Ka1 Ra2 0–1. Neumann,Frank (1650) – Rheindt,Stefan (2015), RSS5E easy–34, 2007.

    4.Nf3 Nc6

    5.e3 b5? 6.c3 (better is 6.Bb5!? Nge7 7.Nc3+–) 6...a6 7.a4 Nb4?? (better is 7...ba4 8.Qa4 Nge7+=) 8.cb4+– Bb4 9.ab5 a5 10.Be2 Bf5 11.0-0 e4 (11...Ne7 12.Nh4 Be6 13.Bh5 g6 14.Be2+–) 12.Nh4 (12.Nd4 Ne7+–) 12...Ne7 (12...Be6 13.f4+–) 13.Nf5 Nf5 14.Bh5 (14.f3 ef3 15.Bf3 Nh4 16.Bh5 Ng6+–) 14...g6 15.Bg4 Nd6 16.Be6 (better is 16.f3 h5 17.Bh3 Qe7+–) 16...Nc4 17.Qc2 (17.Bc3 Qd6 18.Bb4 (18.Bf6?! Rf8 19.Bc3 Bc3 20.Bd5 Ba1 21.Ba8 Qd3+–) 18...Qe6 19.Bc5+–) 17...Qb8?? (17...Qd6 18.Bg4 0-0+–) 18.Bd5 Qb5 19.Bc4 (better is 19.Qe4 Ne5 20.Be5+–) 19...Qc5 (19...Qc6 20.Qb3 Qd6 21.Nc3 Bc3 22.Bc3+–) 20.Bf6 (better is 20.Qe4 Kd8 21.Bf6 Kc8 22.Qa8 Kd7+–) 20...Ra6 21.Bh8 Rd6 22.Qe4 Kd7 23.d3 1–0. GuestLSHN – GuestLDFL, freechess.org, 2017.

    5.e3 Bf5 6.d3 Qd7 7.Be2 0-0-0 8.Nbd2 d4 (8...g5 9.0-0=) 9.e4 (9.ed4 Nd4 10.Bd4 ed4=) 9...Be6= 10.0-0 g5 11.h3 h5 12.c3? (12.Ne1!?+=) 12...g4 (better is 12...dc3 13.Bc3 g4–+) 13.hg4?? (13.b5 Na5 14.Nh4 gh3 15.Qa4 hg2 16.Rfd1 dc3 17.Bc3-/+) 13...hg4–+ 14.Nh2 (14.Ne5 Qh7 15.f4 Ne5 16.fe5–+) 14...Qh7 15.f4 Qh2 16.Kf2 Qf4 (better is 16...Qh4 17.g3 Qh2 18.Ke1 Qg3 19.Rf2–+) 17.Kg1 (17.Ke1 Qg3 18.Rf2 Rh1 19.Nf1–+) 17...Qh2 18.Kf2 g3 (better is 18...Qh4 19.g3 Qh2 20.Ke1 Qg3 21.Rf2 Rh2–+) 19.Ke1 Qg2 20.Bf3 (20.Bg4 Bg4 21.Qg4 Kb8–+) 20...Qh2 21.Rh1 (21.Qe2–+) 21...Qh1 (21...Qf2) 22.Bh1–+ Rh1 (22...Rh1 23.Ke2 Rh2 24.Ke1 dc3 25.Bc3 Rd3–+) 0–1. Fournier,Frederic (2020) – matrixneo38 (2005), Echecs21, 2003.

    5.e3 Kf7 6.c4 Nge7 7.cd5 Nd5 8.Bc4=.

    4.Nf3 Bd6

    (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 f6).

    5.e3 Ne7 6.Be2 Be6 (--> 4.e3 Be6 5.Nf3 Bd6 6.Be2 Ne7).

    4.Nf3 Bg4

    5.Nc3 c6 6.h3 Bf3 7.ef3 a5 8.b5 c5 (8...Bd6 9.Be2=) 9.Be2 b6 (9...Ne7 10.f4=) 10.0-0+= Bd6? (better is 10...Ne7!?+=) 11.Nd5+– Ne7 12.Bc4 Nd7 (12...Nd5 13.Bd5 Ra7 14.Re1+–) 13.f4 ef4 14.Qg4 Ng6 15.Qe6 Be7 16.Nf4!! Nde5 (16...Nf4 17.Qf7) 17.Ng6 hg6 (17...Ng6 18.Rfe1 Qd7 19.Qb6 Kf8+–) 18.Be5 fe5 (18...Qd7 19.Qf7 Kd8 20.Qg7 Rf8+–) 19.Qg6 Kd7 20.Qc6 1–0. b4_player (2005) – leelo (1790), GameColony.com, 2002.

    5.d3 Qd6 6.g3 (6.e3 Nd7=) 6...Qe6 (6...a5 7.c3+=) 7.Bg2 Bh3 8.0-0 Bg2 9.Kg2 g5 (9...Nd7 10.e4=) 10.Nfd2 h5 11.c4 (11.e4 Nc6=) 11...d4 (11...h4 12.cd5 Qd5 13.Kg1 hg3 14.fg3+=) 12.Qb3 (12.e3 de3 13.fe3 Nd7=) 12...Nd7 (12...h4 13.c5 Qd7 14.Kg1+=) 13.c5 Qb3 14.Nb3 0-0-0 15.e3 Nb8 (better is 15...de3!? 16.fe3 Nh6=) 16.ed4+/– ed4 (16...Nc6 17.de5 Ne5 18.d4+/–) 17.Nd4 (17.Bd4?! Nc6 18.Bc3 Rd3+=) 17...Nc6 (better is 17...Rh7!?+/–) 18.Ne6+– Re8 19.Ng5! Bg7 (19...fg5 20.Bh8 Pinning (20.Bh8 Deflection)) 20.Nf3 Ne5 (20...Rd8 21.Rd1+–) 21.Ne5 fe5 22.Nd2 Ne7 (22...Nf6 23.Rae1 Rd8 24.Nc4 (24.Re5?! Ng4 25.Nc4 Be5 26.Be5 Rhe8+–) 24...Rd3 25.Ne5+– (25.Re5?! Ng4+–)) 23.Nc4 Ng6 (23...Nf5 24.Rae1+–) 24.f4 Rhg8 25.f5 Nf8 (25...Nf4 26.gf4 e4 27.Bg7 Rg7 28.Kh3 ed3 29.Ne5+–) 26.f6 Bh6 (26...Bf6 27.Rf6 e4+–) 27.f7 Ne6 28.Be5 (28.Be5 Rgf8 29.fe8R Re8 30.Rf7+–) 1–0. Janek – AxelG, internet, 2017.

    5.e3 Nc6 6.h3 Bh5 7.Be2 a6 8.Ne5 Be2 9.Nc6 Bd1 10.Nd8 Bc2 11.Ne6 Bb1?? (better is 11...Kd7 12.Nd4 Be4=) 12.Nc7+– (12…Kd8 13.Na8+–; 12.Rb1?! Kd7 13.Nc5 Bc5 14.bc5 Ne7+=) 1–0. Klaus Behrmann (2080) – yorugua (2005), ChessWorld.net, 2003.

    4.Nf3 g6

    5.e3 a5 6.b5=.

    5.e3 Ne7 6.c4 Bd7 (6...a5 7.cd5 Nd5 8.b5=) 7.d4+= e4 8.Nfd2 c6 9.Nc3 Be6 10.Qb3 (10.cd5 cd5 11.Be2+=) 10...Nd7 (10...f5!?+=) 11.cd5+/– Nd5 12.Nce4 b5 (12...Be7 13.Nc5 Nc5 14.dc5+/–) 13.Nc5 (13.Qc2 Rc8+/–) 13...Bf7 (13...Nc5 14.dc5 a5 15.e4+/–) 14.Qd1 (14.e4 Nc5 15.dc5 Qe7+/–) 14...Bg7 (14...Nc5 15.bc5 Bg7 16.Bd3+/–) 15.Nd3 (15.Nb7 Qc7 16.Na5 Qb6+–) 15...0-0 (15...a5 16.ba5 Qa5 17.Qc2+/–) 16.Be2 N7b6 17.Nc5 Qe7 18.0-0 a5 19.ba5 Ra5 20.Ndb3 (20.Qc2 f5+–) 20...Raa8 21.Re1 Na4 (21...Rfe8 22.Rc1+/–) 22.Na4+– Ra4 23.Nc5 (23.Qc2 Nc7+–) 23...Raa8 24.Bf3 Qc7 (24...Rfb8 25.Qc2+–) 25.Bd5 (25.a4 Nb6+–) 25...Bd5 26.e4 Bf7 27.Qd2 (27.a4 b4+–) 27...Rad8 (27...Rfd8 28.Qc3+/–) 28.Rac1 (28.a4 ba4 29.Ra4 Ra8+–) 28...Bc4 (28...Rfe8 29.Bc3+/–) 29.Rc4+– bc4 30.Ne6 Qa7 (30...Qb7 31.Nd8 Rd8 32.Qc3+–) 31.Nd8 Rd8 32.g3 (32.Qb4 Qf7+–) 32...f5 (32...Qf7 33.Qa5 Rb8 34.Bc1+/–) 33.ef5+– Bd4? (better is 33...Rb8+–) 34.fg6 hg6 35.Qg5 Do you see the mate threat? 35...Qf7 (35...Rf8 36.Qg6 Bg7+–) 36.Qd8 1–0. Reithel,Donald P – Smith,Roland, corr USA, 1978.

    5.e3 Bg4 6.c4 (6.Be2 Qd6=) 6...Nc6 (6...a5 7.ba5 Ra5 8.Qb3+=) 7.cd5+= Qd5 8.Nc3 Bf3?? (better is 8...Qd6+=) 9.Nd5+– (9.Qf3?! Qf3 10.gf3 0-0-0=; 9.gf3?! Qd7=) 9...Bd1 10.Nc7 (10.Rd1?! Bd6+=; 10.Kd1?! 0-0-0 11.Bc4 Bd6+=) 10...Kd7 11.Na8 Bb3 (11...Ba4 12.b5 Nge7 13.bc6 Nc6 14.Rb1+–) 12.Rb1 (12.b5!? Na5 13.b6 Nh6 14.ba7 Bc5+–) 12...Bd6 13.b5 Na5 14.Bc3 Bc2 (14...Ne7 15.Ba5 Bd5 16.Nc7 Bc7 17.Bc7 Kc7 18.Rb4+–) 15.Rc1 (15.Ba5 Bb1 16.b6 Ne7 17.Bb5 Nc6+=) 15...Ne7 (15...Bb3 16.Ba5 Nh6 17.Nc7+–) 16.Rc2 (16.Ba5?! Bf5 17.Nc7 b6+–) 16...Nc4 (16...b6+–) 17.Bc4 Ra8 18.a4 (18.Bb2 Rc8+–) 18...Rc8 19.d3 e4 (19...Rc5 20.Bd2+–) 20.Bf6 Bb4 (20...ed3 21.Bd3 Rc2 22.Bc2+–) 21.Ke2 ed3 22.Kd3 Nc6 (22...Nf5 23.Bd5 Rc2 24.Kc2+–) 23.bc6 Rc6 24.Bb5 (24.Bb5 a6 25.Bc6 bc6 26.Rb1+–) 1–0. orane – opponent, internet, 2008.

    4.f4 ef4

    5.Nf3 Bd6 6.d3 Ne7–+ 7.Nbd2 (7.c4 dc4 8.dc4 Nf5–+) 7...0-0 (7...Nf5!? 8.c4–+) 8.c4-/+ Nf5 9.Qb3 (9.cd5 Ne3 10.Qb3 Qe7-/+) 9...Ne3 (9...dc4 10.Nc4 Be6 11.Qa4–+) 10.cd5-/+ Qe7 11.Nc4 Nd5 12.Nd6 Qd6 13.Bd4 (13.Nd4 Re8-/+) 13...Re8–+ 14.0-0-0 (14.Bc5!? Qd8 15.g3–+) 14...Be6 15.Qc2 (15.Qb2 b5–+) 15...Nd7 (15...a5 16.Qc5 Qd7 17.b5–+) 16.Bc5 (16.g3 Ne3 17.Be3 fe3–+) 16...Nc5 17.Qc5 Qc5 (17...Qd7!? 18.g3–+) 18.bc5 Nc3 (18...Ne3 19.Re1–+) 19.Rd2 Bd7 (19...Rad8 20.Rc2 Nd5 21.Rc4–+) 20.Nd4 Ba4 21.Kb2 Nd1 22.Kc1 (22.Rd1 Bd1 23.Nb5 Be2 24.Nc7 Bf1 25.Rf1 Re2 26.Kc3 Rc8–+) 22...Ne3 23.g3 (23.Rb2 b6–+) 23...Rad8 24.Nf3 fg3 25.hg3 g5 26.Bh3 (26.Rg1 Rd5 27.d4 b6 28.cb6 cb6–+) 26...g4 27.Bg4 Ng4 28.Rh4 Ne3 (better 28...f5 29.Nh2 Nh2 30.Ra4 Nf1 31.Ra7 Nd2 32.Kd2 Rb8–+) 29.Ra4= Rd5 30.Ra7 (30.d4!? Rh5 31.Ra7 Rh1 32.Kb2 Nc4 33.Kc2 Nd2 A) worse 34.Nd2 Re2 35.Kd3 Rg2 36.Rb7 Rd1–+ (36...Rg3?! 37.Ke4-/+); B) 34.Kd2=+) 30...Rc5=+ 31.Kb2 b6 32.Ra4 (better 32.d4!? Nc4 33.Kc1 Nd2 34.dc5 Nb3 35.Kd1 Nc5 36.Rc7=+) 32...Nf1-/+ 33.Rc2 Rc2 34.Kc2 Re2 35.Kd1 (35.Kc3 h5 36.Nd4 Re5-/+ (worse 36...Ng3 37.Ne2 Ne2 38.Kd2+–)) 35...Rg2–+ 36.g4 (better 36.Ra8!? Kf7 37.Rc8 Ne3 38.Ke1-/+) 36...Ne3 37.Ke1 Ng4 (37...Rg4 38.Rg4 Ng4 39.Ke2–+) 38.Rf4 (38.Nh4 Rg1 39.Ke2 Kf7–+) 38...Kg7 39.Nh4 Rg1 40.Ke2 Ne5 (40...Kh6 41.Nf3 Rg2 42.Ke1–+) 41.Nf5 Kf7 42.Ne3 (42.Ne3 Re1 43.Kd2–+; 42.d4 Nc4 43.Rh4 Ke6–+). BeepBeepImAJeep (2590) – kingston_1972 (2565), lichess.org, 2015.

    5.Nf3 Bd6 6.e3 fe3 7.de3 Nd7 (7...a5 8.b5-/+) 8.c4 (8.Qd5 a5+=) 8...dc4-/+ 9.Bc4 Ne7 10.0-0 b6?? (10...Nb6!? 11.Bd3 a5-/+) 11.Nbd2 (11.Ng5! fg5 12.Qh5 Ng6 13.Bf7 Kf8 14.Bd5 Nf6 15.Ba8=) 11...Bb7 12.e4 (12.Ng5 Ng6 13.Nf7+/–) 12...Ne5?? (better is 12...Ng6+=) 13.Ne5+– Be5 14.Be5 fe5?? (14...b5 15.Qh5 g6+–) 15.Bf7 Kd7 (15...Kf8 16.Bh5 Nf5 17.Rf5 Qf6+–) 16.Qg4 Kd6 (16...Nf5 17.Qf5 Ke7 18.Qe6 Kf8 19.Be8 Qf6 20.Rf6 gf6 21.Qf7) 17.Qe6 1–0. Fournier,Frederic – maestrofideo, Active, 2004.

    4.c4 dc4

    5.e3 c6 6.Bc4= a5 7.Bb5?? (7.ba5 Qa5 8.Qb3=) 7...Bc5 (better is 7...cb5 8.f4 ef4 9.ef4 ab4 10.Qh5 g6 11.Qb5 Bd7 12.Qe2 Qe7–+) 8.Bc6 Nc6 9.Nf3?? (9.bc5 Qd5 10.d4 Qg2+=) 9...Qe7 (better is 9...ab4 10.d4 Bd6–+) 10.0-0?? (better is 10.bc5 Qc5 11.Nc3=) 10…Be6 (10...Be6 11.bc5 Qc5=) 0–1. Fournier,Frederic (2110) – JBconLimon (1945), Active (1/0), 2005.

    5.e4 b5 6.Nf3 Bd6 (6...a5 7.ba5 Ra5 8.d3-/+) 7.Nc3=+ a6 8.Be2 (8.a4 Bb7=+) 8...Ne7 (8...c5 9.bc5 Bc5 10.a4=+) 9.0-0 0-0 10.d4 ed4 11.Nd4 c5 (11...Kh8 12.Bf3-/+) 12.bc5 (12.Ndb5!? ab5 13.Nb5=+) 12...Bc5-/+ 13.Nf3 Be6 14.e5 Qd1 15.Rad1 fe5 16.Ne5 Nbc6 Black intends b4 (16...Nec6 17.Nf3-/+) 17.Nc6? (better 17.Ne4!? Ba7 18.Ng5=+) 17...Nc6-+ 18.Bf3 b4 (better 18...Rf3!? 19.gf3 Bh3-+) 19.ab4 (19.Na4 Rf3 20.Nc5 A) worse 20...ba3 21.Ba1+= (21.gf3? ab2 22.Ne6 Rb8-+); B) 20...c3=) 19...Rf3=+ 20.gf3 (20.bc5!? Rd3 21.Rd3 cd3 22.Rd1=+) 20...Bb4-/+ 21.Rfe1 Bf7 22.Re4 Rb8 23.Ne2 a5 24.Nd4 (24.Rd7 a4-/+) 24...Nd4 25.Red4 c3?? (better 25...Kf8-/+) 26.Rd8+= Rd8 27.Rd8 Be8 28.Ba1 (28.Bc3 Bc3 29.Re8 Kf7+=) 28...Kf7 29.Rc8 Bd7 30.Rc7 Ke6 31.Bc3 Kd6 (31...Kd6 32.Be5 Ke5 33.Rd7 Kf6+=) ½-½. Eti,Lui - Palmer,J, NZCCA TT Class, 1993.

    5.e3 Be6

    6.Qc2 b5 7.a4 c6-/+ 8.ab5 (8.Bc3 Qb6-/+) 8...cb5 9.Nc3 (9.Na3 Qb6 (worse 9...Bb4 10.Nb5 Bf5 11.Qc1-/+) 10.Bc3 Nc6–+) 9...Qb6–+ (worse 9...Bb4 10.Nb5 Bf5 11.Qc1-/+) 10.Ra5 (10.Na2 a5 11.ba5 Ra5–+) 10...a6 (10...Bb4? 11.Rb5 Qd6 12.Qa4+–) 11.Ba3? (11.d3–+) 11...Nc6 12.Qe4 f5 (12...Na5 13.Qa8 Qd8 14.Qa6+–) 13.Qf3 e4 (13...Rd8 14.Qg3 e4 15.Nh3–+) 14.Qg3 (14.Ne4 Rd8 (14...Na5?! 15.ba5 Qd8 16.Bf8 fe4 17.Qe4 Kf8 18.Qe6–+) 15.Ng5 A) 15...Na5 16.ba5 c3 17.d4+= (17.ab6?? cd2 18.Kd1 Bb3 19.Ke2 d1Q); B) 15...Bc8–+) 14...Nb4 (better 14...Qd8!? 15.Bb2 Na5 16.ba5–+) 15.Bb4 White gets deadly initiative 15...Bb4 16.Ra1 Ra7 17.Nge2 Nf6 (17...Bd6 18.f4–+) 18.Nd4 0-0 19.Ne6 (19.Rb1 Bd6 20.Qg5 Ba3–+) 19...Qe6 (better 19...Bc3 20.dc3 Qe6–+) 20.Nb5 Rd7 (20...ab5 Exploits the pin 21.Ra7) 21.Nd4 Qd5 22.Rc1 Ng4?? (better 22...Rc8 23.Be2 Ba5–+) 23.Bc4+– (23.Bc4 Qc4 24.Rc4+–) 1–0. BeepBeepImAJeep (2480) – auditor2016 (2360), lichess.org, 2017.

    6.Qc2 b5 7.d3 a5 8.ba5 Nc6 9.dc4 b4=+ (9...Ra5? 10.cb5 Na7 11.Bc3 Rb5 12.Bb5 Nb5 13.Nf3+-).

    6.Qc2 b5 7.d3 c6 8.dc4= bc4 (8...a5 9.ba5 Qa5 10.Nd2=) 9.Bc4 (9.Nd2 a5 10.Bc4 Bc4 11.Nc4 ab4+/-) 9...Bc4 10.Qc4 Qd5 11.Qf1 (better 11.Qd5!? cd5 12.Nc3+/-) 11...a5= 12.Nc3? (12.ba5!? Nd7 13.Nf3=) 12...Qb3=+ 13.Nd1? (better 13.Qe2 ab4 14.ab4 Ra1 15.Ba1 Bb4 16.Qb2 Bc3 17.Qc3 Qb1 18.Ke2-/+) 13...ab4-+ 14.Nf3 ba3 15.Bc1? (15.Bc3 Nd7 16.Nd2 Qe6-+) 15...Bb4 (15...a2 16.Qe2 Bb4 17.Kf1-+) 16.Nd2 (16.Bd2 Na6 17.Qe2-+) 16...a2 17.Qe2 Qb1 18.Bb2 Qc2 19.0-0 Qd2 20.Qc4 Be7 (better 20...Ne7-+) 21.Nc3 (21.Ra2 Ra2 22.Qa2-+) 21...Qb2 22.Rfd1 (22.Na2 Qa3-+) 22...Nh6 (better 22...Qc2 23.g3-+) 23.Ne4 (23.Na2 Nf7 24.Rab1 Qa3-+) 23...Nf7 (23...f5 24.Nc3 Ng4 25.Rf1-+) 24.Qe6 (24.Qc3 Qb4 25.Qc2 0-0-+) 24...0-0 (24...Ra5!? 25.Ng3 g6 26.Ne4-+) 25.Qe7 Na6 26.g4 (26.Qe6 Nb4 27.Qg4 Nc2-+) 26...Qb4 (better 26...Nb4 27.Qc5 Nc2 28.Ra2 Ra2 29.h3-+) 27.Qe6 (27.Qb4 Nb4 28.Rdc1 Ng5 29.Ng5 fg5-+) 27...Qe4 28.g5 Nc5 29.Qe7 Nb3 30.gf6 Qg6 31.Kf1 Qf6 (31...Qf6 32.Qf6 gf6 33.Ra2 Ra2-+) 0-1. is_er_nog_hoop (2380) - Lance5500 (2635), lichess.org, 2018.

    6.Qc2 b5 7.d3 cd3 8.Bd3+= c6 9.Bh7 Nh6 (9...a5 10.Bg6 Bf7 11.ba5 Qa5 12.Nc3+=) 10.Bg6 Nf7 11.Nf3 Bd6 (11...a5 12.ba5 Qa5 13.Nbd2=) 12.Nc3 (12.0-0 a5 13.ba5 Qa5 14.Nc3+/-) 12...Qe7 (better 12...a5!? 13.ba5 Qa5+/-) 13.Ne4 0-0? (13...Kf8 14.Rd1 Bd5 15.Ng3+-) 14.Nh4 (better 14.Bh7 Kh8 15.Nh4+-) 14...Nh6?? (14...f5 15.Nf5 Bf5 16.Bf5+-) 15.0-0-0 (better 15.Bh7! Kf7 16.Nd6 Qd6 17.Qg6 Ke7 18.Qg7 Rf7 19.Qh6+-) 15...f5 16.Nd6 Qh4 17.Be5 (17.g4 Ng4 18.Nf5 Bf5 19.Bf5 Nf2+-) 17...Qg5 (17...Nd7!? 18.Bf4 Qg4 19.Bh6 gh6 20.Bf5 Bf5 21.Nf5 Qf5 22.Qf5 Rf5 23.Rd7 a5+=) 18.Be8+- Bd5? (better 18...Qe7 19.Bh5 Nd7+/-) 19.f3 (better 19.Rd5 cd5 20.Qd1+-) 19...Qe3-+ 20.Kb1 Qe5 21.Nb7 0-1. pacal56 (2235) - mecker (2265), Rated Blitz game, lichess.org, 2015.

    5.e4 Be6

    6.Nf3 c5 7.Nc3 cb4 8.ab4 Bb4 9.Qa4 Nc6 10.Be2 Nge7 11.0-0 0-0 12.Rfd1 Bc5 13.Bc4-/+ Qd6 14.Nb5= Qd7 15.Be6 Qe6 16.Nc7 (16.Nc7 Qf7 17.Na8 Ra8 18.Qb5+–) 1–0. wlittle (2100) – pornstars (2125), net–chess.com, 2005.

    6.Nf3 Nd7 7.d4 ed4 8.Nd4= Bf7 9.Nd2 Ne5 10.f4 Nd3 11.Bd3 cd3 12.0-0 c5 13.Nf5 c4 14.Rc1=+ b5 15.e5 Qb6 16.Bd4 Qa6 17.Ne4 Bd5 18.ef6 Nf6 19.Nf6 gf6 20.Qh5 Kd7 21.Ne3 Be4 22.a4 d2+/– 23.ab5?? dc1Q–+ 24.ba6 Qa3 25.Qf7 Be7 26.Rd1 Bd3 27.Qd5 Bd6 28.Qb7 Bc7 29.Nc4! Bc4 30.Bc5 Ke6 31.Qe4 Be5 32.Rd6 Kf7 33.Rd7 Ke6 34.Re7 1–0. cgits (2680) – huimre (2515), net–chess.com, 2005.

    4.c4 d4

    5.e3 a5 6.ed4 ed4 7.Qb3 ab4 8.ab4 Ra1 9.Ba1 c5 (9...Nc6 10.c5 Qe7 11.Kd1=) 10.b5 (10.bc5 Na6=) 10...b6 (10...Qe7 11.Kd1=+) 11.Nf3= Bd6 12.Be2 Bb7 13.d3 Ne7 14.0-0 0-0 15.Nbd2 Re8 16.Ne4 (16.Re1 Nf5=+) 16...Bc7 17.Re1 f5 18.Ng3 g6 (18...Ng6 19.Qd1=+ (19.Nf5? Bf3 20.Qd1 Bb7-+)) 19.Ng5 (19.Bb2 Nc8 20.Qd1 f4=) 19...Nc8=+ 20.Nf3 (20.Nh3 Qh4=+) 20...Nd6 (20...Bf3 21.gf3 Qg5 22.Bb2-/+) 21.Bd4? (better 21.Qd1!?=+) 21...cd4-/+ 22.c5 Nf7 23.c6 Bc8 24.Qc4 Be6 25.Qd4 Qd4 (25...Nd6!? 26.Qb4 Bd5-/+) 26.Nd4=+ Bd5 27.Rd1 Nd6 28.Bf3 Bf3 29.gf3 Re5 30.Kf1?? (better 30.Rb1-/+) 30...Nb5-+ 31.f4 Rd5 (better 31...Nd4 32.fe5 Be5 33.c7 Bc7 34.h3-+) 32.Ne6? (32.Nb5 Rb5 33.d4-+) 32...Nc6 33.Rc1 Rd6 34.Ng5 (34.Nc7 Nc7 35.Ne2 b5-+) 34...Bd8 (34...Ncd4 35.Ne2 Rd7 36.Re1-+) 35.Nf3 Nbd4 36.Ne5 Ne5 37.fe5 Re6 (37...Rd5!? 38.f4-+) 38.Rc8 (38.f4 Kf7-+) 38...Re8 39.f4 Ne6 (39...Kf7!? 40.Ne2 Nf3 41.h3-+) 40.Ne2 Kf8 41.Rb8 g5 42.fg5 f4 (better 42...Bc7 43.Re8 Ke8-+) 43.Nf4?? (43.Kg2-+) 43...Nf4 44.Kf2 (44.d4 Bg5 45.Rb6 Rd8-+) 44...Ne6 (better 44...Nd3 45.Kf3 Ne5 46.Kg2 Ke7-+) 45.Ke3 (45.Rb7 Bc7 46.h4-+) 45...Bg5 46.Ke4 Rb8 47.d4 b5 48.d5 b4 49.de6 Ke7 50.Kf5 (50.h4 Bh6 51.Kf3 b3 52.Ke4 b2 53.Kf3 b1Q 54.Kg3 Rb3 55.Kf2 Qc2 56.Ke1 Rb1) 50...Ke8 (50...b3 51.Kg4 Rb4 52.Kg3 b2 53.h3 Bh4 54.Kf3 b1Q 55.Ke2 Re4 56.Kf3 Qh1) 51.Kg5 (51.Kg4 b3 52.Kg3 b2 53.Kf3 b1Q 54.Kg4 Qe4 55.Kg5 Rb4 56.Kf6 Qg6) 51...b3 52.Kf6 (52.e7 b2 53.Kf5 b1Q 54.Kf4 Qd3 55.e6 Rb4 56.Ke5 Qd4 57.Kf5 Rb5) 52...b2 53.e7 (53.Kf5 b1Q 54.Kf4 Qd3 55.Kg5 Rb4 56.Kf6 Qg6) 53...b1Q 54.Ke6 (54.e6 Rb5 55.Kg7 Rg5 56.Kh8 Qb2 57.Kh7 Qh2) 54...Qf1 (54...Qd3 55.h3 Rb6) 55.Kd5 (55.Kd6 Qb5 56.Ke6 Qd3 57.h3 Rb6) 55...Qe2 (55...Qd3 56.Kc6 Qc4 57.Kd6 Rb6) 56.Kd6 (56.h3 Qd3 57.Kc6 Qc4 58.Kd6 Rb6) 56...Qg2 (56...Qc4 57.e6 Rb5 58.h3 Rd5) 57.Kc5 Qh2 (57...Qc2 58.Kd4 Rb4 59.Ke3 Qc3 60.Kf2 Rb2 61.Kf1 Qc1) 58.Kd4 (58.Kd6 Qd2 59.Kc5 Qb4 60.Kd5 Rb5 61.Ke6 Qg4 62.Kd6 Qd7) 58...Qh3 59.Kc5 (59.Kc4 Qe3 60.e6 Rc8 61.Kd5 Rc5 62.Kd6 Qd4) 59...Qh4 60.Kd5 Qh5 (60...Rb5 61.Kc6 Qc4 62.Kd6 Rb6) 61.Kc5 Qh6 (61...Qh6 62.Kd5 Qd2 63.Ke4 Rb4 64.Kf3 Qd3 65.Kf2 Rb2 66.Ke1 Qe2; 61...Qe5 62.Kc4 Rc8 63.Kd3 Rc3 64.Kd2 Qe3 65.Kd1 Rc1) 0-1. erka1118 (2405) - zsolti_83 (2400), Rated Bullet game, lichess.org, 2017. (=1.a3 d5 2.b4 e5 3.Bb2 f6 4.c4)

    5.g3 b6 6.Bg2= c6 7.d3 Ne7 8.Nd2 Nf5 9.Ngf3. coloplayah (2180) – blammey, net–chess.com, 2006.

    5.g3 c5 6.bc5 Bc5 7.Bg2 Ne7 8.d3 0-0 9.Nd2 Nbc6 10.Ne4 Bb6 11.Nf3 Bf5 12.Nfd2 Bg6 13.0-0 Nc8 14.c5 Bc7 15.Nc4 f5 16.Ned2 N8e7 17.Qb3+= Bf7 18.Qb7 Rb8 19.Qa6 Bd5 20.Bd5 Qd5= 21.Rab1 Qc5 22.Rfc1 Qd5=+ 23.e4 de3 (23...de3 24.Ne3 Qd6=+). wlittle (1730) – artfuldodger (1740), net–chess.com, 2001.

    5.h4 Be6=+ 6.h5 (6.Qa4!? Qd7 7.Qd7 Nd7 8.e3 de3 9.de3=+) 6...Bc4-/+ 7.h6 (7.e3 Bf1 8.Kf1 de3 9.fe3 a5-/+) 7...g5 (better 7...Nh6!? 8.Qc2 b5-+) 8.e3-/+ Bf1 9.Qh5 Kd7 (9...Ke7 10.Kf1 de3 11.de3 Qd3 12.Ke1-/+) 10.Qf7 (10.Kf1!? de3 11.Qh3 Ke8 12.Qe3-/+) 10...Qe7 11.Qd5 Qd6 (11...Kc8!? 12.Kf1 de3 13.de3 Bh6-/+) 12.Qb7-/+ Bg2 (12...Nc6 13.Qa8 Bg2 14.Rh2-/+) 13.Qg2 Qc6 14.Qg4 (14.Qh3 Kd8 15.ed4 ed4-/+) 14...Qe6 (14...Ke7!? 15.Qf3-+) 15.Qg2 (15.Qe4 c6 16.ed4 ed4 17.Qe6 Ke6 18.Nf3=+) 15...Qc6 (15...c6 16.f4 ef4 17.Bd4-+) 16.Qh3 (16.Qg4 Ke7 17.Qf3 Qf3 18.Nf3 a5-+) 16...Ke7 (16...Kd8 17.ed4 ed4 18.d3-/+) 17.ed4=+ Qe4 (17...g4!? 18.Qh5 ed4=) 18.Ne2= g4 (18...Nh6 19.de5 fe5 20.d3+=) 19.Qh5 Bh6? (19...Nd7 20.d3 Qd3 21.de5=) 20.Nbc3 (20.de5 Kd8+-) 20...Qg6? (20...Qd3 21.Rd1 Nd7 22.Qg4+=) 21.Qh2?? (better 21.Nd5 Kd8 22.Qg6 hg6 23.de5+-) 21...Nd7 (21...Qd3 22.Nb1 Bf4 23.Nf4 ef4 24.Qf4=) 22.Nd5 (better 22.de5 fe5 23.d4+=) 22...Kf7 (22...Kd8!?=+) 23.Rc1 (23.de5 Qg5 24.e6 Ke6 25.Nc7 Ke7+/-) 23...Qd3 (better 23...c6 24.Ne3 Be3 25.de3 Qf5+=) 24.Rc7?? (better 24.Qh5 Kf8 25.Ne3+/-) 24...Qd2-+ 25.Kf1 Qd1 (25...Qb2 A) 26.Rd7 Ke6 27.Qh5 Kd7 28.Qf5 Kd6 29.Nf6 Nf6 30.Qf6 Kd5 31.Qe5 Kc4 32.Rh6 Rac8= (32...Qa3 33.Rc6 Kb3 34.Qe3 Kb4 35.Qe7 Kb3 36.Rc3 Kb2 37.Qa3 Kb1 38.Rc1); B) 26.Qh5 Ke6 27.Nec3+-) 26.Kg2 Qe2 27.Rd7 Ke6 28.Qh5 Qf3 (28...Kd7 29.Nf6 Nf6 30.Qf7 Kc8 31.Qf6 Qe4 32.Kg1-/+) 29.Kg1 Kd7 30.Qf7 Kc6?? (better 30...Kd6 31.Nf6 Rd8 (31...Nf6 32.Rh6 e4 33.Rf6 Qf6 34.Qf6 Kd5 35.Qe5 Kc6 36.b5 Kd7 37.d5+-; 31...Qf6?? 32.de5 Kc6 33.ef6+-) 32.Ne8 Re8 33.Qe8 Bg7 34.Qd8 Ke6 35.Rh7 Qd1 36.Kg2 Nf6 37.Rh8 Bh8 38.Qc8 Kf7 39.de5 Qf3 40.Kg1 g3 41.Qc7 Kg6 42.Qc2 Ne4 43.fg3 Qg3 44.Kh1 Qf4 45.Qc6 Kh5 46.Qe8 Kg4 47.Qg6 Ng5-+) 31.b5?? (31.Qe6 Kb5 32.Nc3 Qc3 33.Bc3+-) 31...Kb5-/+ 32.Qb7 (better 32.Nc3 Kc6 33.d5 Kc5 34.Qb7-/+) 32...Kc4-+ 33.Ne3 (33.Rh6 Nh6 34.Ne3 Qe3 35.Qb4 (worse 35.fe3 Rab8 36.Qa7 Rb2-+) 35...Kd5 36.fe3=+) 33...Be3 34.Qa6 (34.Qf7 Kd3 35.Qb3 Ke4 36.fe3 Qe3 37.Qe3 Ke3 38.de5 Rd8-+) 34...Kd5 (34...Kb3 35.Qd3 Kb2 36.fe3-+) 35.fe3 (35.Qb7 Kd6 36.Qb4 Kd7 37.Qa4 Kd8 38.Qa5 Ke8 39.Qb5 Kf8 40.fe3 Qe3 41.Kf1-+) 35...Qe3 36.Kf1 g3 (better 36...Rb8 37.Rh2 Rb2 38.Qa5 Ke6 39.Qa6 Rb6 40.Qc4 Kf5 41.Qc2 Kg5 42.Re2 Qd4 43.Kg2-+) 37.Qb7 Ke6 38.Qc6 (38.d5 Kf5 39.Qd7 Kg6 40.Qg4 Kf7 41.Qe6 Kf8 42.Qd6 Kg7 43.Qd7 Ne7 44.Qg4 Kf8-+) 38...Kf5 Black prepares e4 (38...Kf7 39.Kg2 Ne7 40.Qc4 Kf8 41.Qf1-+) 39.Qc2 e4 40.Qc5 (40.Kg2 Qf3 41.Kg1-+) 40...Kf4 (better 40...Kg6 41.Qh5 Kg7-+) 41.Bc1 (41.Rh4 Kf3 42.Qh5) 41...Ne7?? (better 41...Qc1! 42.Qc1 Kf5+/-) 42.Rh4 Kf3 43.Be3 (43.Qh5) 43...g2 (43...Ng6 44.Qf5 Ke3 45.Re4 Kd2 46.Re2 Kc3 47.Rc2 Kb3 48.Qd3 Ka4 49.Qc4 Ka5 50.Qb4 Ka6 51.Rc6) 44.Kg1 (44.Ke1 Rag8 45.Bg1 Nd5 46.Qd5 Re8 47.Qf5 Kg3 48.Rh3) 44...Ng6 (44...Nf5 45.Qf5 Ke3 46.Re4 Kd2 47.Qf2 Kd3 48.Qe3 Kc4 49.d5 Kd5 50.Qd3 Kc5 51.Rc4 Kb6 52.Qb3 Ka5 53.Ra4) 45.Qf5 (45.Rh3 Ke2 46.Qc2 Ke1 47.Qd2) 45...Ke3+- 46.Re4 Kd2 47.Qf3 (47.Kg2 Rac8 48.Qf2 Kc3+-) 47...Rac8 (47...Nf4+-) 48.Re2 Kc1 49.Qe3 Kb1 50.Rd2 (50.Qd3 Kc1 51.Qd2 Kb1 52.Qb2) 50...Rc1+- 51.Kg2 Nh4?? (51...Rb8 52.Qf2+-) 52.Kh3 (52.Kf2 Rc2 53.Qb3 Ka1 54.Qc2 h5 55.Rd1) 52...Rh1+- 53.Kg4?? (better 53.Rh2 Rh2 54.Kh2+-) 53...Rg8 54.Kf4 Rf1 55.Ke4 (55.Qf2 Rf2 56.Rf2 f5-+) 55...Re8 56.Kd3 Re3 57.Ke3 Rf3 58.Ke4 (58.Ke2 Ra3 59.d5 Rg3 60.Rd1 Kc2-+) 58...Ra3 59.Kd5 (59.d5 f5 60.Kf4 Ra4 61.Kg3 Rg4 62.Kh3 Nf3-+) 59...f5 60.Ke6 (60.Rf2 a5-+) 60...f4 (better 60...Nf3!? 61.Rd1 Kc2 62.Rh1 Nd4 63.Ke5-+) 61.d5 f3 (61...Nf3!? 62.Rf2 Rd3 63.Kf5-+) 62.d6 Re3 63.Kf7 Re2 (better 63...Ng6 64.d7 Ne5 65.Kg8 Nd7 66.Rd7 h5 67.Rb7 Kc1 68.Ra7 f2-+) 64.Rd1-/+ Kc2 65.d7 Kd1 66.d8Q Rd2 (66...Kc1 67.Qh4 f2 68.Qc4 Rc2 69.Qf1 Kb2=) 67.Qa5?? (better 67.Qh4 f2 68.Qh1 Kc2 69.Qh7 Kc3 70.Qf5=) 67...f2-+ 68.Qa1 (68.Qa4 Kc1 69.Qc4 Rc2 70.Qf4 Kb1 71.Qb4 Rb2 72.Qe4 Ka1-/+) 68...Ke2 69.Qe5 Kf1 70.Qa1 (70.Kg8-+) 70...Kg2 71.Qf6 (71.Kg8 f1Q 72.Qf1 Kf1 73.Kh7 a5-+) 71…f1Q (71...f1Q 72.Ke7 Ng6 73.Kf7 Nh8 74.Ke6 Qa6 75.Ke5 Qe2 76.Kf4 Qf3 77.Kg5 Rd5 78.Kh6 Qf6 79.Kh7 Rd7 80.Kg8 Qg7) 0-1. is_er_nog_hoop (2515) - genodesis (2495), Rated Blitz game, lichess.org, 2016.

    5.e3 c5

    6.bc5 Bc5 (--> 4.e3 c5 5.bc5 Bc5 6.c4 d4).

    6.Nf3 Nc6 7.bc5 (7.b5 Na5=) 7...Bc5 8.Nd4 ed4 (better 8...Bd4 9.ed4 Nd4 10.Bd4 Qd4=) 9.Qh5+/- Kf8 10.Qc5 Kf7 (10...Nge7 11.Be2+/-) 11.ed4+- Qe8 (11...Nge7 12.Be2+-) 12.Be2 Bg4 13.f3 Bc8 (13...b6 14.Qd5 Be6 15.Qe4+-) 14.d5 Ne5 15.Qe3 Bf5 16.0-0 Nh6 17.d4 (17.c5!? Nd7 18.c6 Nb6 19.cb7 Rb8 20.Qe8 Rhe8+-) 17...Nd3 18.Qe8 (better 18.Qd2!? Nb2 19.Qb2 Qe3 20.Rf2+-) 18...Rhe8+/- 19.Bc3?? (better 19.Bd3 Bd3 20.Rc1+/-) 19...Re2-+ 20.Nd2 (20.g4 Bd7-+) 20...Rae8 21.Ne4? (better 21.Rfb1 b6 22.g4-+) 21...Be4 22.fe4 R8e4 (22...Rc2 23.e5 Rc3 24.Rf3-+) 23.Rf3 (23.Rab1 b6 24.Rbd1 Nf4-+) 23...Nf4 24.g3 (24.Kf1 Ng2 25.Rb1-+) 24...Nh3 25.Kh1 (25.Kf1 Ng4 26.Rf6 Kf6 27.Re1 Nh2) 25...Rc2 (25...Ng4 26.Ra2 Ra2 27.Bb2 Rb2 28.Rf6 Nf6 29.c5 Re1) 26.Re1 (26.g4 Ng4 27.Rh3 Nf2 28.Kg2 Nh3 29.Kh3 Re3 30.Kg4 Rf2 31.Be1 f5 32.Kh4 Kf6 33.Bf2 g5 34.Kh5 Rh3 35.Bh4 Rh4) 26…Ng4 (26...Ng4 27.Bd2 Rd2 28.Rf6 gf6 29.Re2 Ree2 30.c5 Rh2) 0-1. azadiazadi (2355) - maharram (2220), Rated Blitz game, lichess.org, 2016.

    6.Nf3 de3 7.fe3 cb4 8.d4=+.

    4.d3 c5

    5.c3 Nc6 6.b5 Nce7 7.a4 Bf5 (7...a6 8.Na3+=) 8.e3 (8.Nd2 Qa5+=) 8...a6 (8...Ng6 9.Nf3+=) 9.Ba3 (9.Nd2 ab5 10.ab5 Ra1 11.Ba1 Ng6=) 9...Ng6 10.Nd2 (10.Nf3 Nh6+=) 10...ab5 (10...Qa5 11.e4 Be6 12.Ne2+=) 11.ab5 Bd6 12.Be2 (12.c4 Be6+=) 12...N8e7 13.e4 (13.Ngf3 0-0+=) 13...Bd7 (13...Be6 14.Ngf3+=) 14.ed5 (14.d4 ed4 15.cd4 Nf4+=) 14...Nd5 15.c4 Nc3 (15...Ndf4 16.Ne4 Be7 17.Bf1 Qa5 18.Qd2 Qd2 19.Nd2-/+) 16.Qc1 Ne2 17.Ne2 0-0 (17...Be7 18.Qc3+=) 18.0-0 (18.Ne4 Bg4 19.f3 Bf5+=) 18...Bf5 (18...Bg4 19.f3 Be6 20.Ne4=) 19.Qc3 (19.Ne4 b6=) 19...b6 (19...Nf4 20.Nf4 ef4 21.Bb2+=) 20.Ng3 (20.Ne4 Qd7=) 20...Nf4+= Attacks the backward pawn on d3 21.Nde4 Be4 (better is 21...Bc7!?+=) 22.de4= Bc7 (22...Qd7 23.Rfd1 Rfd8 24.Rd2=) 23.Rfd1 Qe7 (23...Qc8 24.Bc1+=) 24.Bc1 Ra1 25.Qa1 Ne6 26.Be3 (26.Nf5 Qf7+=) 26...Rd8 (26...Nd4 27.Qa7=) 27.Ne2 (27.Rd8 Qd8 28.Qa2 Nd4=) 27...Rd1 (27...Nd4 A) worse is 28.Nd4 ed4 (28...cd4?! 29.Bd2+=) 29.Bd2 Qe4-/+; B) 28.Nc3=) 28.Qd1 Qd6 (28...Qd8 29.Qd2+=) 29.Qd6 Bd6 30.Nc3 Kf7 (30...Nc7 31.g4+=) 31.Nd5 Bc7 32.f3 (32.Kf1 g6+=) 32...Bd8 33.Kf2 g5 34.g4 (34.g3 Nd4+=) 34...Kg6 35.Kg3 h5 36.h3 (36.Bd2 Nd4+=) 36...hg4 (36...Nd4 37.Bd2=) 37.hg4+= Ng7 38.Bd2 (38.Kf2 Ne6+=) 38...Ne8 (38...Ne6 39.Kf2+=) 39.Kf2 Nd6 (39...Nc7 40.Bc3+=) 40.Ne3 Nb7 (40...Ne8 41.Ke1+=) 41.Ke2 Kf7 (41...Nd6 42.Kd3+=) 42.Kd3 (42.Nd5 Nd6 43.Kd3 Ne8+=) 42...Ke6 (42...Nd6 43.Bc1+=) 43.Nd5+/– Nd6 ½–½. brkst – andre_k, gameknot.com, 2011.

    5.c3 Bf5 6.Nd2 Bd6 7.Ngf3 Ne7 0–1. Dejna,Miroslaw – Orlowski,Pawel, 12 Ketrzynski Festiwal Szachowy – open, 2009.

    5.c3 cb4

    6.ab4= a5 7.Ra5 (7.ba5 Ra5 (7...Nc6 8.e4 Ra5 9.Ra5 Qa5 10.ed5 Qd5; 7...Ne7 8.Nf3 Ra5 9.Ra5 Qa5 10.e3 Nec6) 8.Ra5 Qa5 9.e4 d4 10.Be2 dc3; 7.Nf3 b6 (7...Nc6 8.ba5 Ra5 9.Ra5 Qa5 10.Qb3 Bc5) 8.Nbd2 Bd6 9.e4 Ne7 10.d4 0-0) 7...Ra5 8.ba5 Qa5 9.Qb3 (9.e4 de4 10.de4 Bc5=; 9.e3 Nc6 10.Be2 Qa2) 9...d4 (9...Nd7 10.Nf3+= (10.e4 Nc5) 10...Nc5) 10.Nd2 (10.Nf3 Bc5) 10...Nc6 (10...dc3=) 11.Ngf3 Bd6 (11...Bc5!?=) 12.cd4 ed4 13.Nd4 (13.Bd4? Nd4 14.Nd4 Qa1 15.Qb1 Qd4–+) 13...Nd4 14.Bd4 Bb4 15.Qc2 (15.Qd1 Be6+=) 15...Qa1?? (better is 15...Ne7+=) 16.Ba1+– (16.Ba1 Ne7 17.d4+–) 1–0. Wall,Bill – Robin Jackie, internet, 2000.

    6.ab4= Nc6 A) 7.e3 Be6 (7...Bf5 8.Nf3 Bd6 9.Be2 Nge7 10.0-0 0-0; 7...Nh6 8.Be2 Bd6 9.Nf3 0-0 10.0-0 Be6; 7...Qb6 8.Nf3 Bd6 9.Ba3 a6 10.d4 Bg4) 8.Nf3 Qb6 9.Be2 Bd6 10.Qa4 Nh6; B) 7.Nd2 d4 (7...Bg4 8.Ngf3 Bd6 9.e4 d4 10.cd4 Bf3; 7...Bd6 8.Ngf3 Be6 9.e4 Nge7 10.b5 Nb8; 7...a6 8.Ngf3 Be6 9.e4 Bd6 10.ed5 Bd5) 8.cd4 Nd4 9.e3 Nc6 10.b5 Nb4; C) 7.b5 Qb6 (7...Nce7 8.Nf3 Qb6 9.Qa4 Bd7 10.c4 d4) 8.Qa4 Nd8 9.Nf3 Ne6 10.Nbd2 a5; D) 7.Nf3 Be6 (7...Bd6 8.e4 Be6 9.ed5 Bd5 10.b5 Qb6; 7...Bg4 8.Nbd2 Bd6 9.b5 Nce7 10.e4 Qd7; 7...Nge7 8.e3 Qb6 9.Be2 Be6 10.Qa4 Ng6) 8.e3 Qb6 9.Be2 Bd6 10.Ba3 Nge7.

    6.ab4= d4 7.Nf3= (7.e3 dc3 8.Bc3 Ne7 9.d4 Nd5 10.Qa4 Bd7) 7...dc3 (7...Nc6 8.b5 dc3 9.Nc3 Nb4 10.Ra4 Nd5) 8.Bc3 Nc6 9.Qa4 Bd6 10.e4 Qe7.

    6.ab4= Bd6 A) 7.Nf3 Ne7 8.Na3 Bd7 9.e4 0-0 10.Be2 a5; B) 7.Na3 a5 (7...Nc6 8.Nf3 Be6 9.e3 Nh6 10.Nb5 Be7) 8.Nb5 Be7 9.Qb3 Bd7 10.Qd5 Qb6; C) 7.e4 d4 (7...Be6 8.Nd2 Ne7 9.Ngf3 0-0 10.Be2 Nbc6) 8.Nf3 Bg4 9.Be2 dc3 10.Bc3 Qe7; D) 7.e3 Be6 (7...Ne7 8.Na3 Bd7 9.Qh5 g6 10.Qf3 0-0; 7...Bf5 8.Be2 Ne7 9.Nd2 0-0 10.Ngf3 Qc7; 7...Qb6 8.Qh5 g6 9.Qf3 Be6 10.Nd2 Nc6) 8.Nf3 Ne7 9.Be2 0-0 10.0-0 Qc7.

    6.ab4= Be6 A) 7.e3 Bd6 (7...Nd7 8.Nf3 Bd6 9.Be2 Ne7 10.Na3 a6; 7...Ne7 8.Nf3 Ng6 9.Qa4 Qd7 10.Be2 Bd6) 8.Be2 Ne7 9.Nf3 0-0 10.0-0 Qb6; B) 7.Nd2 Bd6 (7...Nc6 8.b5 Nb8 9.e4 Qd7 10.c4 dc4; 7...Nh6 8.Ngf3 Bd6 9.e4 0-0 10.Qb3 Bc7; 7...Be7 8.e4 Nh6 9.Be2 0-0 10.Ngf3 Nd7) 8.e4 Ne7 9.Qa4 Nbc6 10.Ngf3 Nc8; C) 7.Qa4 Qd7 (7...Nc6 8.e4 Nge7 9.b5 Nb8 10.Nd2 Nd7; 7...Nd7 8.e4 Bd6 9.Nd2 Ne7 10.Qb5 Qc7; 7...Bd7 8.Qb3 Ne7 9.Nf3 Nbc6 10.e4 Be6) 8.Nf3 Qa4 9.Ra4 Bd7 10.Ra1 d4; D) 7.Nf3 Bd6 (7...Nc6 8.e3 Qb6 9.Nbd2 Bd6 10.Be2 Nge7) 8.e3 Ne7 9.Be2 0-0 10.0-0 Nd7.

    6.ab4= Bg4 A) 7.Nf3 Bd6 (7...Nc6 8.e3 Bd6 9.b5 Qb6 10.Ba3 Bf3; 7...Be7 8.Nbd2 Nh6 9.e4 0-0 10.ed5 Qd5) 8.e4 d4 9.Be2 dc3 10.Bc3 Qe7; B) 7.h3 Be6 (7...Bh5 8.Qa4 Nc6 9.e4 Bg6 10.Nd2 Nge7) 8.Nf3 Bd6 9.Qa4 Bd7 10.Qb3 Ne7; C) 7.Qb3 Nc6 (7...Be6 8.Nf3 Bd6 9.e4 Ne7 10.Be2 Qd7; 7...Ne7 8.e3 Qd7 9.Be2 Be6 10.Nf3 Nf5) 8.e3 Be6 9.Nf3 Bd6 10.Be2 Qb6; D) 7.Nd2 Nc6 (7...Bd6 8.Ngf3 Ne7 9.e4 0-0 10.Be2 Be6; 7...Ne7 8.Ngf3 Ng6 9.e3 Be7 10.Be2 0-0; 7...Nd7 8.Ngf3 Qb6 9.Qa4 Ne7 10.e4 Be6) 8.Ngf3 Bd6 9.e4 d4 10.cd4 Bf3.

    5.c3 Be6

    6.Qb3 A) 6...Qb6 A1) 7.Qa4 Nc6 (7...Nd7 8.e4 Bd6 9.ed5 Bd5 10.Nd2 Rd8; 7...Kf7 8.Nf3 Bd6 9.e4 Ne7 10.Be2 Rd8; 7...Qc6 8.b5 Qd7 9.c4 Ne7 10.Nf3 dc4) 8.Nf3 Bd6 9.b5 Na5 10.Nbd2 a6; A2) 7.Nf3 Ne7 (7...Nd7 8.Nbd2 Nh6 9.b5 e4 10.Ng1 c4; 7...d4 8.Qa4 Bd7 9.Qb3 Nc6 10.Nbd2 dc3; 7...Be7 8.Qa4 Nc6 9.e4 Bd6 10.Nbd2 Nge7) 8.Nbd2 Ng6 9.bc5 Bc5 10.Qb6 Bb6; A3) 7.Nd2 Nd7 (7...a5 8.Qa4 Bd7 9.Qb3 ab4 10.ab4 Ra1; 7...Nc6 8.e4 Nge7 9.Be2 Kf7 10.b5 Na5; 7...Nh6 8.e3 Nd7 9.Be2 Rd8 10.Qa4 Bd6) 8.e3 cb4 9.cb4 a5 10.ba5 Qb3; B) 6...Nd7 B1) 7.Nf3 Qb6 (7...Ne7 8.e3 Qb6 9.Qa4 Ng6 10.Be2 Bd6; 7...Bd6 8.e3 Ne7 9.Be2 0-0 10.0-0 cb4; 7...Rc8 8.e4 Ne7 9.Nbd2 Kf7 10.b5 c4) 8.Nbd2 Nh6 9.Qa4 Be7 10.e4 de4; B2) 7.Nd2 f5 (7...Qb6 8.e3 cb4 9.cb4 a5 10.ba5 Qb3; 7...Ne7 8.Ngf3 Kf7 9.e3 Nf5 10.c4 d4; 7...Rc8 8.e4 Ne7 9.Ngf3 Kf7 10.b5 c4) 8.c4 d4 9.Ngf3 Bd6 10.Qa4 cb4; B3) 7.e3 Bd6 (7...Qb6 8.Nd2 cb4 9.cb4 Rc8 10.Be2 Bd6) 8.Nf3 Ne7 9.Be2 0-0 10.0-0 a5; B4) 7.e4 Ne7 (7...c4 8.dc4 de4 9.Nd2 f5 10.Nh3 Qb6) 8.Nd2 Qb6 9.Qa4 cb4 10.ab4 d4.

    6.Nd2 A) 6...Nh6 A1) 7.e3 Bd6 (7...Nd7 8.Ngf3 Bd6 9.bc5 Nc5 10.d4 Nd7; 7...Nc6 8.b5 Na5 9.e4 Bd6 10.Ngf3 Qb6; 7...a5 8.bc5 Bc5 9.d4 Be7 10.c4 Nc6) 8.bc5 Bc5 9.d4 Be7 10.c4 dc4; A2) 7.Ngf3 Nc6 (7...Be7 8.bc5 Bc5 9.d4 Bb6 10.de5 fe5; 7...Nd7 8.e4 Qc7 9.Qa4 Bd6 10.d4 ed4; 7...Nf7 8.e4 Nc6 9.b5 Ne7 10.c4 d4) 8.b5 Ne7 9.e4 d4 10.Be2 dc3; A3) 7.e4 d4 8.cd4 cd4 9.Ngf3 a5 10.ba5 Qa5; B) 6...Nd7 B1) 7.e4 d4 (7...Ne7 8.Ngf3 Ng6 9.Be2 Be7 10.0-0 Nf4) 8.cd4 cd4 9.Be2 a5 10.ba5 Ra5; B2) 7.Ngf3 Ne7 (7...Be7 8.e4 Qc7 9.Qa4 Kf7 10.d4 Nb6; 7...Nh6 8.e4 Qc7 9.Qa4 Bd6 10.d4 ed4; 7...Bd6 8.bc5 Bc5 9.d4 Bd6 10.e4 Rc8) 8.e4 Ng6 9.Qa4 Qb6 10.Rd1 d4; C) 6...a5 7.bc5 Bc5 8.d4 Bb6 9.e4 de4 10.Ne4 f5; D) 6...Nc6 7.b5 Nce7 (7...Na5 8.e4 Qb6 9.Qa4 a6 10.d4 Bd7) 8.e4 Qa5 9.Nb3 Qc7 10.d4 cd4.

    6.e3 A) 6...Nh6 A1) 7.Nf3 Nc6 (7...Bd6 8.bc5 Bc5 9.Qb3 Qb6 10.Qb6 Bb6; 7...Be7 8.bc5 Bc5 9.d4 Qb6 10.Qd2 ed4; 7...Nd7 8.Nbd2 Bd6 9.bc5 Nc5 10.d4 Nd7) 8.b5 Na5 9.Be2 Qb6 10.Qa4 a6; A2) 7.Be2 Bd6 (7...Nd7 8.d4 c4 9.e4 Qc7 10.de5 de4; 7...Nc6 8.b5 Ne7 9.Nf3 Qd7 10.Qa4 Nc8) 8.bc5 Bc5 9.Qb3 Qc7 10.Nd2 Nc6; A3) 7.Nd2 Bd6 (7...Nd7 8.Ngf3 Bd6 9.bc5 Nc5 10.d4 Nd7; 7...Nc6 8.b5 Na5 9.e4 Bd6 10.Ngf3 Qb6; 7...a5 8.bc5 Bc5 9.d4 Be7 10.c4 Nc6) 8.bc5 Bc5 9.d4 Be7 10.de5 fe5; A4) 7.d4 c4 (7...Qb6 8.Nf3 Nc6 9.Be2 Bd6 10.dc5 Bc5) 8.de5 fe5 9.e4 Nc6 10.Nd2 b5; B) 6...Nc6 B1) 7.Nf3 Bd6 (7...Nh6 8.b5 Na5 9.Nbd2 Bd6 10.Be2 0-0; 7...Qb6 8.d4 Rd8 9.Be2 Nh6 10.0-0 c4) 8.Be2 Nh6 9.Nbd2 0-0 10.0-0 Nf7; B2) 7.Be2 Bd6 8.Bh5 g6 9.Be2 Nge7 10.Nf3 Qc7; B3) 7.Nd2 Bd6 (7...Qb6 8.Ngf3 a5 9.Qa4 Rd8 10.b5 Na7) 8.d4 cb4 9.cb4 Qb6 10.de5 fe5; B4) 7.b5 Qb6 (7...Na5 8.Nf3 Qb6 9.Qa4 a6 10.ba6 Nc6; 7...Nce7 8.Nf3 Qa5 9.Qb3 Nf5 10.Nbd2 Nd6; 7...Nb8 8.Be2 Qd7 9.Qb3 a6 10.ba6 Ra6) 8.Qa4 Nce7 9.Nf3 Nh6 10.Be2 Ng6; C) 6...Qb6 C1) 7.d4 Bd6 (7...Nc6 8.Nf3 Be7 9.de5 fe5 10.b5 Bf6; 7...Nd7 8.Nf3 c4 9.Be2 e4 10.Nfd2 Bd6; 7...Nh6 8.Nf3 Nc6 9.Be2 Bd6 10.dc5 Bc5) 8.dc5 Bc5 9.c4 dc4 10.Nd2 Nc6; C2) 7.Nd2 Nc6 (7...Nd7 8.Ngf3 a5 9.Qa4 Ne7 10.Nb3 Nc6; 7...Bd6 8.d4 cd4 9.cd4 Nc6 10.de5 fe5) 8.Ngf3 Rd8 9.Rb1 cb4 10.cb4 Bd6; C3) 7.Be2 Bd6 (7...a5 8.Qa4 Bd7 9.Qb3 ab4 10.ab4 Ra1; 7...Nc6 8.Nd2 a5 9.Qa4 Be7 10.b5 Na7; 7...Nh6 8.d4 Nc6 9.Nf3 Bd6 10.dc5 Bc5) 8.Nd2 Ne7 9.Bh5 g6 10.Be2 0-0; C4) 7.Nf3 Bd6 (7...Nc6 8.Nbd2 a5 9.Qa4 Rd8 10.b5 Na7; 7...a5 8.d4 cd4 9.ed4 e4 10.Nfd2 Nc6; 7...Nh6 8.Qa4 Nd7 9.Nbd2 Bd6 10.e4 de4) 8.d4 ed4 9.ed4 c4 10.Be2 Nd7; D) 6...Bd6 D1) 7.Nf3 Nc6 (7...Ne7 8.bc5 Bc5 9.d4 Qb6 10.Qd2 ed4; 7...Nd7 8.d4 cd4 9.cd4 e4 10.Nfd2 Ne7; 7...Qb6 8.d4 ed4 9.ed4 c4 10.Be2 Ne7) 8.Be2 Nge7 9.Nbd2 0-0 10.0-0 Ng6; D2) 7.Be2 Ne7 (7...Nc6 8.Bh5 g6 9.Be2 Nge7 10.Nf3 0-0; 7...Nd7 8.d4 cd4 9.cd4 a5 10.ba5 Qa5; 7...Nh6 8.Qb3 Qb6 9.Nd2 cb4 10.ab4 Na6) 8.Nf3 0-0 9.0-0 Qc7 10.Nbd2 Nd7; D3) 7.bc5 Bc5 8.d4 Qb6 9.Qc1 Be7 10.c4 dc4; D4) 7.d4 c4 8.e4 Ne7 9.de5 Be5 10.Nd2 Qc7.

    6.e4 cb4 A) 7.cb4 de4 (7...a5 8.b5 de4 9.de4 Qd1 10.Kd1 Nd7; 7...Nc6 8.Nd2 Rc8 9.Rc1 Nge7 10.Ngf3 d4) 8.de4 Qd1 9.Kd1 a5 10.ba5 Bc5; B) 7.ab4 de4 (7...Nc6 8.b5 Qb6 9.Qa4 Nd8 10.Nd2 Ne7) 8.de4 Qd1 9.Kd1 Nc6 10.Nd2 Nh6.

    6.e4 Nc6 A) 7.ed5 Bd5 (7...Qd5 8.Nd2 b5 9.c4 Qd7 10.cb5 Nd4) 8.Bc1 Bd6 9.Be3 cb4 10.ab4 Nge7; B) 7.b5 Nce7 8.Nd2 Qa5 9.Nb3 Qb5 10.ed5 Nd5.

    6.e4 d4 A) 7.Nf3 dc3 (7...Nc6 8.cd4 Nd4 9.Nd4 cd4 10.f4 a5) 8.Bc3 Nc6 9.Be2 Qb6 10.bc5 Bc5; B) 7.cd4 cd4 8.Be2 a5 9.ba5 Qa5 10.Nd2 Nd7.

    6.e4 de4 7.de4 Qd1 8.Kd1 Nc6 (8...a6 9.Ke1+= b5 10.Nf3 Nc6; 8...Nd7 9.Ke1 Ne7 10.Nd2 Ng6) 9.Nd2 (9.Ke1 a6 10.b5 Na5) 9...Rd8 (9...a6 10.Ngf3 Rd8) 10.Ngf3 (10.Ke1 a6+= (10...Be7=)) 10...Nge7 (10...a6+=) 11.Kc2 (11.Ke1 Ng6+=) 11...Nc8 (11...Ng6 12.Bc4 Bg4 13.h3+=) 12.Be2 (12.Bc4 Bd7+=) 12...Nb6 (12...a6 13.b5 ab5 14.Bb5+=) 13.b5 (13.Rhd1!?=) 13...Na5-/+ 14.Rhf1 Be7 (14...c4 15.Rab1-/+) 15.h3 0-0 16.Rad1 (16.Rfd1 Na4-/+) 16...Nac4 (16...c4!?-/+) 17.Nc4+= Nc4 18.Nd2 (18.Bc1 Nd6 19.Be3 Ne4+=) 18...Nd2+= 19.Rd2 Bb3 20.Kc1 Rd2 21.Kd2 Rd8 22.Ke3 (22.Ke1 Bc2 23.Bc4 Kh8=) 22...c4+= 23.Bc1 Kf7 (23...Bc5 24.Kf3+=) 24.Kf3 a5 25.g3 Ke8 26.Kg2 Ba4 27.b6 =. Chatterjee – Woelfelschneider,Peter, email 4AMM–F, 1998.

    6.Nf3 A) 6...Nh6 A1) 7.Nbd2 Nc6 (7...Be7 8.bc5 Bc5 9.d4 Bb6 10.de5 fe5; 7...Nd7 8.e4 Qc7 9.Qa4 Bd6 10.d4 ed4; 7...Nf7 8.e4 d4 9.cd4 cd4 10.Be2 a5) 8.b5 Ne7 9.e4 d4 10.Be2 dc3; A2) 7.Bc1 Nf7 8.e4 de4 9.de4 Qd1 10.Kd1 Nd6; A3) 7.e3 Bd6 (7...Be7 8.bc5 Bc5 9.d4 Qb6 10.Qd2 ed4; 7...Nd7 8.Nbd2 Bd6 9.bc5 Nc5 10.d4 Nd7; 7...Nc6 8.b5 Ne7 9.Be2 Qd7 10.a4 0-0-0) 8.bc5 Bc5 9.d4 Qb6 10.Qd2 ed4; B) 6...Nc6 B1) 7.e3 Bd6 (7...Qb6 8.Nbd2 cb4 9.ab4 Bd6 10.Be2 Nge7) 8.Nbd2 Nge7 9.Be2 0-0 10.0-0 Ng6; B2) 7.Nbd2 Bd6 (7...Nh6 8.b5 Ne7 9.e4 d4 10.Be2 dc3) 8.e4 d4 9.cd4 cd4 10.Rc1 Nge7; B3) 7.Bc1 a6 (7...Qb6 8.e3 Bd6 9.bc5 Qc5 10.d4 Qa5; 7...Qd7 8.e3 Bd6 9.Be2 Nge7 10.bc5 Bc5; 7...Bd6 8.e4 Nge7 9.Be2 0-0 10.b5 Na5) 8.e3 Bd6 9.Be2 Nge7 10.0-0 0-0; B4) 7.b5 Qb6 (7...Na5 8.e3 Qb6 9.Qa4 a6 10.ba6 Nc6; 7...Nce7 8.e3 Qa5 9.Qb3 0-0-0 10.Be2 g5; 7...Nb8 8.Nbd2 Qa5 9.Qb3 Bd6 10.e4 Ne7) 8.Qa4 Na5 9.e3 a6 10.ba6 Nc6; C) 6...Nd7 C1) 7.e4 Be7 (7...a5 8.b5 Be7 9.Be2 Qb6 10.ed5 Bd5; 7...Ne7 8.Be2 Ng6 9.0-0 Nf4 10.ed5 Bd5; 7...Bd6 8.Nbd2 Ne7 9.d4 ed4 10.bc5 Nc5) 8.Nbd2 Qc7 9.Qa4 Kf7 10.d4 Nb6; C2) 7.e3 Bd6 (7...Be7 8.Be2 Nh6 9.bc5 Bc5 10.d4 Bd6; 7...cb4 8.ab4 Bd6 9.Be2 Ne7 10.Na3 a6; 7...Nh6 8.Nbd2 Bd6 9.bc5 Nc5 10.d4 Nd7) 8.d4 cd4 9.cd4 e4 10.Nfd2 Ne7; D) 6...Bd6 D1) 7.bc5 Bc5 8.e3 Nc6 9.d4 Qb6 10.Qc2 Bd6; D2) 7.e3 Nc6 (7...Ne7 8.bc5 Bc5 9.d4 Qb6 10.Qd2 ed4; 7...Nd7 8.Be2 Ne7 9.0-0 0-0 10.e4 Qb6; 7...Qb6 8.d4 cd4 9.cd4 e4 10.Nfd2 Ne7) 8.Nbd2 Nge7 9.Be2 0-0 10.0-0 Ng6; D3) 7.Nbd2 Nc6 (7...cb4 8.ab4 Ne7 9.e4 0-0 10.Be2 Qb6; 7...Ne7 8.bc5 Bc5 9.d4 Bb6 10.de5 fe5) 8.e4 d4 9.cd4 cd4 10.Be2 b5; D4) 7.e4 Nc6 (7...Ne7 8.bc5 Bc5 9.d4 ed4 10.cd4 de4; 7...cb4 8.ab4 Ne7 9.d4 0-0 10.Bd3 Nd7; 7...Nd7 8.Nbd2 Ne7 9.d4 ed4 10.bc5 Nc5) 8.ed5 Bd5 9.Nbd2 Nge7 10.Ne4 cb4.

    5.Nd2 cb4

    6.ab4 Bb4

    7.c3 Bc5 8.e3 Nc6 9.Ngf3 Nge7 10.Be2 Be6 11.0-0 Bb6 12.Ba3 0-0 13.c4 Qd7 14.cd5 Bd5 15.Nc4 Bc7 16.Nfd2 (16.e4 Be6-/+) 16...b5-+ 17.e4 Be6 (17...bc4?! 18.ed5 Qd5 19.Bf3 Qd3 20.Be4=) 18.Ne3 b4 19.Bb2 a5 20.Ndc4 (20.Nb3!? Qd6 21.Ra4-+) 20...Rfd8 21.Qc1 (21.Re1 Nd4 22.Bg4 Bg4 23.Ng4 Ne6-+) 21...a4 22.Nd5 (22.Qd2 a3 23.Bc1 Ng6-+) 22...a3 (22...Nd5 23.ed5 Bd5 24.Ne3-+) 23.Ba3 (23.Ne7 Ne7 (23...Qe7?! 24.Na3 ba3 25.Qc6-+) 24.Na3 ba3 (24...Ra3?! 25.Ba3 ba3 26.Ra3-+) 25.Ra3 Bb6-+) 23...ba3 (better 23...Bd5 24.Bb2 Be6 25.Ra8 Ra8 26.Qb1-+) 24.Nf6 (24.Ndb6 Nd4 25.Qd1 Bb6 26.Nb6-+) 24...gf6 25.Qh6 (25.Ra3 Ra3 26.Qa3 Nd4-+) 25...Ng6 26.Ne3 (26.Rfb1 Nd4 27.Bf1 Qe7-+) 26...Qg7 (better 26...Nd4 27.Bh5 Nf4-+) 27.Qh5 (27.Qg7 Kg7 28.Rfc1 Nge7-+) 27...Nd4 (better 27...Nf4 28.Bg4 Nh5 29.Be6 Kh8 30.Bd5-+) 28.Bd1 (28.Bg4 Bg4 29.Qg4 Nf4-+) 28...Bb6 (28...Nf4 29.Qh4-+) 29.g3 (29.Kh1 Nf4 30.Qh4 Qg5-+) 29...Bf7 (better 29...Nf4 30.Qh4-+) 30.Qg4 Ne7 31.Qh3 Be6 32.Bg4 Nf3! 33.Kg2 (33.Bf3 Bh3 Pinning (33...Bh3 Deflection)) 33...Bg4 34.Ng4 (34.Qg4 Be3 35.Qg7 Kg7 36.Kf3 Bb6-+) 34...Ng5 35.Qh5 Nf7 (35...Rd3 36.Rfe1-+) 36.Qh4 (36.Rfb1 Ra6 37.Rb3 Bc5-+) 36...f5 (36...Ng6 37.Qf6 Nf4 38.Kg1 Qg4 39.Qb6 Ne2 40.Kg2-+) 37.Nf6 (37.Qe7 Qg4 38.h3 Qe2 39.Ra3 Ra3 40.Qa3 f4-+) 37...Kh8 38.Nh5 Qf8 (better 38...Qg5 39.Qg5 Ng5-+) 39.Qf6 Kg8 40.ef5 (40.Qb6 Rd3 41.Rfd1 fe4 42.Nf6 Kh8-+) 40...Nf5! 41.Qf5 Nh6?? (better 41...Bd4 42.Nf6 Kg7-+) 42.Qg5= Qg7?? (better 42...Kf7 43.Qf6 Kg8 44.Qb6 Qd6 45.Qd6 Rd6=) 43.Qg7 1-0. Zobbie (2475) - zumpili (2405), Rated Bullet game, lichess.org, 2021. (=1.a3 d5 2.b4 e5 3.Bb2 f6 4.d3 c5)

    7.c3 Bc5 8.e3 Bd6 9.d4 Nc6 10.Ne2 Nge7 11.Ng3 e4 (11...0-0!?-/+) 12.c4 f5 13.cd5 Nb4 (worse 13...Nd5 14.Nge4 Bb4 15.Nc5=) 14.Qb3 a5 15.Bb5 (15.Nc4 Ned5 16.Nd6 Qd6-/+) 15...Bd7 16.Nc4?? (better 16.Bd7 Qd7 17.Nc4-/+) 16...Bb5-+ 17.Nd6 Qd6 18.Ba3 (18.Bc3 0-0-+) 18...0-0 (18...Qd5 19.Qd5 Nbd5 20.Rb1-+) 19.Nh5 (19.Kd2 Ned5 20.Rhc1 b6-+) 19...Rfc8 20.Nf4 Nc2 (better 20...Ned5 21.Nd5 Qd5 22.Qd5 Nd5-+) 21.Qc2 Qa3 22.Qc8 (22.Ra3?? Rc2 23.Ra1 Rac8-+) 22...Rc8 (22...Nc8 23.Ra3 Bc4 24.Kd2+=) 23.Ra3 Rc1 24.Kd2 Rh1 25.Ra5 Ba6?? (25...Bd7 26.Ra7 Rb1-+ (26...Rh2 27.Rb7 Nd5 28.Nd5+=)) 26.d6= Nc6 27.Rf5 Ra1?? (better 27...g6 28.d5 Nd8+= (28...gf5?? 29.dc6 Kf7 30.c7+-; 28...Rh2?? 29.dc6 gf5 30.d7+-)) 28.Ne6+- Ra2 29.Kc3 h6 30.Rf8 (30.d5!? Nd8+-) 30...Kh7 31.Rc8 Rf2?? (better 31...Ra3 32.Kb2 Ra2 33.Ka2 Bc4 34.Ka3 Be6+-) 32.d7 Rf7 (32...Re2 33.Rc6! Re3 34.Kb4 bc6 35.d8Q+-) 33.Nf8 Kg8 34.Ng6 (better 34.d5 Rd7 35.Nd7 Kh7 36.dc6 bc6 37.Rc6+-) 34...Kh7 35.Nf8 Kg8 36.Ne6 Kh7 37.Rc6! Rd7 (37...bc6 38.d8N Double attack (38.d8N Decoy)) 38.Rb6 (better 38.Ra6 Rd4 39.ed4 ba6 40.d5+-) 38...Rf7 (38...Rd5+/-) 39.Nf4 (39.d5!?+-) 39...g5 (39...Rc7 40.Kb2+=) 40.Nh5 (40.Ne6 Bf1+/-) 40...Rf2 41.Nf6 Kg6?? (better 41...Kg7 42.Ne4 Rg2+/-) 42.Ne4+- Kf7 43.Nf2 g4 (43...h5 44.g4 hg4 45.Ng4+-) 44.Ng4 h5 45.Nh6 (45.Ne5 Ke7+-) 45...Ke7 46.Nf5 Kd7 47.Ra6! Kc7 (47...ba6 48.d5 Passed pawn) 48.Ra7 (48.Rh6 Kd7+-) 48...Kb6 49.Rb7! Kb7 50.h4 Kc7 51.Ng3 (better 51.g4 hg4 52.h5 Kd7+-) 51...Kd6 52.Nh5 Ke7 53.Nf4 Kd6 54.g4 Ke7 55.h5 Kd6 56.h6 Ke7 (56...Kd7 57.h7 Kc6 58.h8Q Kd7 59.Qg7 Kc8 60.Nd5 Kd8 61.Qe7 Kc8 62.Qc7) 57.h7 Kd6 (57...Kf6 58.h8Q Ke7 59.Nd5 Kd6 60.Kc4 Kd7 61.Qg7 Kd6 62.Qe7 Kc6 63.Qc7) 58.h8Q Ke7 59.Qe5 (59.Qe5 Kd7 60.Nd5 Kc6 61.Qe6 Kb5 62.Nc7 Ka5 63.Qa6; 59.Nd5 Kd6 60.Kc4 Kd7 61.Qg7 Kd6 62.Qe7 Kc6 63.Qc7) 1-0. Zobbie (2485) - zumpili (2395), Rated Bullet game, lichess.org, 2021. (=1.a3 d5 2.b4 e5 3.Bb2 f6 4.d3 c5)

    7.c3 Bc5 8.Ngf3 Bf2! 9.Kf2 Qb6 10.e3 Qb2 11.Qb3?? (11.c4 Ne7-+) 11...Qb3 (better 11...Qa1 12.e4 Qa5-+) 12.Nb3 Nc6 13.Be2 b6 14.Rhc1 Bb7 15.c4 dc4 16.Rc4 Nge7 17.Rb1 0-0-0 18.Rbc1 Kb8 19.d4 ed4 20.Nbd4 Nd4 21.Nd4 Nd5 22.Bf3 Rd7 23.Bg4 (23.Rd1 Ne7-+) 23...Re7 24.Nf5 Rc7 (24...Re5 25.Bh3-+) 25.Nd6 Rc4 26.Rc4 Ba8 27.Bf3 Rd8 28.Nf5 g6 29.Nd4 Ne7 (29...f5 30.Rc6-+) 30.Ne6 (30.Ba8 Ka8 31.Rc7 Re8-/+) 30...Rc8 (30...Rd2 31.Ke1 Rd3 32.Ke2-+) 31.Rd4 (31.Rc8 Nc8 32.Nf8-+) 31...Rc2 32.Kf1 (32.Be2 Nc6 33.Rd6 f5-+) 32...Bf3 33.gf3 Nf5 34.Rd8 Kb7 35.Rd3 a5 (35...Rh2 36.e4 Nh4 37.f4-+) 36.Nd8 (36.e4 Nh4 37.Rd7 Kb8-+) 36...Ka6 37.Nf7 (37.e4 Nh4 38.h3 a4-+) 37...a4 (37...Rh2!? 38.e4 Ng3 39.Ke1-+) 38.e4 b5 (better 38...Nh4 39.h3 b5-+) 39.ef5-/+ gf5 40.Nd6 b4 41.Nf5 (better 41.Rd4 a3 42.Rb4-+) 41...Kb5?? (41...b3 42.Rd6 Ka5 43.Rd5 Kb4 44.Nd6-+) 42.Rd6?? (better 42.Nd4 Kc4 43.Nc2 Kd3 44.Nb4 Kc3 45.Nd5 Kb3 46.Nf4= (46.Nf6?? a3-+)) 42...b3-+ (worse 42...Rh2 43.Rd5 Kc6 44.Ne7 Kb6 45.Kg1-+) 43.Nd4? (43.Rd1 Rh2 44.Kg1-+) 43...Kb4 (43...Kc5 44.Rd8 b2 45.Nc2 b1Q 46.Ne1-+) 44.Rb6?? (better 44.Nc2 bc2 45.Rc6+/-) 44...Kc3 (better 44...Kc5 45.Rb3 ab3 (45...Kd4?! 46.Ra3-+) 46.Nb3 Kc4 47.Na5 Kd5-+) 45.Nc2-/+ bc2 (45...Kc2 46.Ra6 b2 47.Ra4 b1Q 48.Kg2 Kd3-+) 46.Rc6= Kb2 47.Ke2?? (better 47.Rb6 Ka3 48.Rc6=) 47...a3 (better 47...c1Q 48.Rb6 Ka1-+) 48.Rb6 (better 48.Kd2 c1B 49.Rc1+-) 48...Kc3= 49.Rc6 Kb2 50.Rb6 (50.Kd2 c1B 51.Rc1+-) 50...Kc3= 51.Ra6?? (51.Rc6 Kb2=) 51...Kb2 (51...c1Q!? 52.Rc6 Kb2 53.Rc1 Kc1 54.Ke3-+) 52.Kd3?? (better 52.Rb6 Kc3=) 52...a2 (better 52...c1Q 53.Rb6 Ka1 54.Rb3-+) 53.Ke4 (better 53.Ra2! Ka2 54.Kc2+-) 53...c1Q-+ Black prepares a1 54.Rb6 Kc2 55.Rc6 Kd1 56.Rc1 Kc1 57.Kf5 a1Q 58.Kg4 Qe5 59.f4 (59.f4 f5 60.Kf3 Qc3 61.Kf2 Kd2 62.Kg2 Ke2 63.h3 Qg7 64.Kh2 Kf3 65.h4 Qg2). Zobbie (2455) - zumpili (2425), Rated Bullet game, lichess.org, 2021. (=1.a3 d5 2.b4 e5 3.Bb2 f6 4.d3 c5)

    7.c3 Bc5 8.g3? Bf2!-+ 9.Kf2 Qb6 10.e3 Qb2 11.Rb1 Qc3 (better 11...Qa3-+) 12.Rc1= Qc1 (better 12...Bg4! 13.Be2 Qd3 14.Rc8 Kf7 15.Bg4 a5=) 13.Qc1+/- Nc6 14.Bg2 Bf5 (better 14...Nge7!?+/-) 15.Bd5+- Nge7 16.Be4 Rc8 17.Qb2 Be6 (17...Rc7 18.Qb3+-) 18.Nc4 (18.Qb7 0-0+-) 18...0-0 (18...Bc4 19.dc4 Rc7 20.Nf3+-) 19.Qb7 Rb8 20.Qa6 (20.Bc6?! Rb7 21.Bb7 Rd8+/-) 20...f5 (20...Rfc8+-) 21.Bc6 (21.Bc6 Bc8 22.Qa2+-) 1-0. Zobbie (2465) - zumpili (2415), Rated Bullet game, lichess.org, 2021. (=1.a3 e5 2.b4 d5 3.Bb2 f6 4.d3 c5)

    7.c3 Bd6 8.Qb3 Ne7 9.c4 d4 10.Ne4 Bc7 11.g3 Nd7 12.Bg2 0-0 13.c5 Kh8 14.Nd6? (14.Nf3 Ba5 15.Kd1 Bc7-/+) 14...Bd6 (14...Nc5?! 15.Nf7 Rf7 16.Qf7-+) 15.cd6 Nf5 16.Ba3 Rb8 (16...a5 17.Nf3-/+) 17.Be4 Nh6 18.Nf3 b5 (18...f5 19.Bd5 Qa5 20.Kf1 Nf6-/+) 19.0-0 (better 19.Bb4!? a6 20.0-0=+) 19...a5-+ 20.Rfc1 b4 21.Bb2 Bb7 (21...Nf7!?-+) 22.Rc7-/+ Be4 23.de4 Nc5?? (better 23...Nb6 24.Ra5 Qd6-/+) 24.Rc5+- Ng4? (better 24...Qd6 25.Rca5 Rfc8+-) 25.Rd5 Qe8 26.Raa5 Qh5 (26...Qg6 27.Kg2+-) 27.Rab5 (better 27.Rd4 Rbd8 28.Rdd5+-) 27...f5 (27...Rb5 28.Rb5 Rd8+-) 28.Rb8 Rb8 29.d7 Rd8 30.Qd3 (better 30.Rc5 Qg6 31.Rc8+-) 30...f4 (30...h6 31.ef5 Qf7 32.Re5 Rd7 33.Rb5+-) 31.Qb5 (better 31.Bd4 fg3 32.hg3 Qg6 33.Be5 Qc6+-) 31...Qf7 (31...fg3 32.fg3 Qf7 33.h3+-) 32.Qb4 (better 32.Ne5!? Qf8 33.Ng4 f3+-) 32...h6 (32...fg3 33.fg3 h6 34.Qb6 Rd7 35.Rd7 Qd7 36.Ne5 Ne5 37.Qb8 Kh7 38.Qe5+-) 33.Qb6 (better 33.h3 Nf6 34.Ne5 Qg8 35.Rd4 fg3+-) 33...Rd7 34.Rd7 Qd7 35.Qb8 (better 35.h3 Nf6 36.Ne5 Qe8 37.gf4 Qa4 38.Nf7 Kh7 39.Bd4 Qd1 40.Kg2 Qc2+-) 35...Kh7 36.Ne5 (36.h3 Nf6 37.Qe5 fg3 38.Qg3 Ne4+-) 36...Ne5 37.Qe5 d3 (37...f3 38.Qd4 fe2 39.Qd7 e1Q 40.Kg2 Qe4 41.Kh3 Qg6+-) 38.Qf5 (better 38.ed3 f3 39.Qg7 Qg7 40.Bg7+-) 38...Qf5-+ 39.ef5 d2 40.e3 (40.Kg2 d1Q 41.gf4 Qe2-+) 40...d1Q (40...f3 41.h3 d1Q 42.Kh2 Qf1 43.Bg7 Qg2) 41.Kg2-+ Qc2 (better 41...f3 42.Kh3 Qf1 43.Kg4 Qf2-+) 42.Kh3 (42.Kh3 Qf5 43.g4-+). Zobbie (2430) - zumpili (2445), Rated Bullet game, lichess.org, 2021. (=1.a3 d5 2.b4 e5 3.Bb2 f6 4.d3 c5)

    7.c3 Bd6 8.Ngf3 Nc6 9.g3 Nge7 10.Bg2 Be6 11.0-0 Qd7 12.c4 d4 13.Ne4 Bb4 14.Ba3 b6 (14...Ba3 15.Ra3 Bf5 16.Nfd2-/+) 15.Qb3 (better 15.Bb4 Nb4 16.Nd4 Qd4 17.Nf6 gf6 18.Ba8=+) 15...a5?? (better 15...Ba3 16.Ra3 0-0-/+) 16.Bb4+- Nb4 17.Ne1?? (better 17.Qb4! ab4 18.Ra8 Nc8 19.Rc8 Qc8 20.Nd6 Kd7 21.Nc8 Rc8 22.Rb1+-) 17...0-0-/+ 18.Nc2 Nc2 19.Qc2 Rfb8 20.Rfb1 Nc6 21.Qa4 Nb4?? (better 21...Nd8=+) 22.Qd7 Bd7 23.Nd6?? (better 23.Nf6 gf6 24.Ba8 Ra8 25.Rb4+-) 23...Bc6-/+ 24.Rb4? (24.Bc6 Nc6 25.Ra4 Ra7-/+) 24...Bg2 (better 24...ab4 25.Rb1 Bg2 26.Kg2 Ra4-+) 25.Rb2-/+ Bc6 26.Rab1 (26.e4 de3! 27.fe3 Ra6-/+) 26...a4-+ 27.Ra2 Kf8 28.Nb5 Ke7 (28...Ra5!? 29.Ra3-+) 29.Rb4-/+ Ra5 30.Rba4 Ra4 (better 30...Bb5!? 31.cb5 Rba8 (31...Rb5?! 32.Ra7 Kf8 33.Rd7=+) 32.Ra5 Ra5-/+ (32...ba5?! 33.b6=+)) 31.Ra4= Bb5 32.cb5 Rb7 33.Rc4 Kd7 34.Rc6 Rc7 35.Rb6 Rc2 36.Kf1 Rb2 (36...Kc8 37.Re6+=) 37.h4 (37.Rb7 Ke6 38.Rg7 Rb5 39.Rh7 Kd5+-) 37...h5 (37...Kc7!? 38.Rc6 Kb7+/-) 38.Rb7+- Ke6 39.Rg7 Rb5 40.Rh7 Rb1 41.Kg2 Rb2 42.Kf3 (42.Rh5?! Re2 43.Rh6 Rd2=) 42...Kf5 (42...e4 43.de4 Rb5 44.Rh8+-) 43.Rh5 Kg6 44.Rh8 Rb7 (44...f5 45.Ra8+-) 45.Rg8 (45.Rg8 Kf7 46.Ra8+-) 1-0. Zobbie (2430) - zumpili (2445), Rated Bullet game, lichess.org, 2021. (=1.a3 d5 2.b4 e5 3.Bb2 f6 4.d3 c5)

    4.d3 Be6

    5.Nd2 a5 6.b5 Nd7 7.e3 Bd6 8.e4 c6 9.a4 Ne7 10.Ngf3 0-0 11.Be2 Ng6 (11...cb5!? 12.ab5 a4 13.c4 dc4 14.Ra4 Ra4 15.Qa4–+) 12.g3 f5 13.0-0 f4 14.Kg2 d4 15.c4 h6 16.Ng1 Nf6 17.f3? (better is 17.Qc2!?-/+) 17...Qd7 18.Rf2 Rf7 19.Qc2 Raf8 20.Raf1 Bb4 21.Bc1 h5 22.Nb1 Nh7 23.Rd1 fg3 24.hg3 h4 (better is 24...Nf6 25.f4 ef4 26.bc6 Qc6 27.gf4 Ng4 28.Bg4 Bg4–+ (28...hg4?! 29.Ne2–+)) 25.Bd2? (25.gh4 Nh4 26.Kh1–+) 25...Be7 (25...Nf6 26.bc6 bc6 27.f4 hg3 28.Kg3 ef4 29.Kg2–+) 26.Bc1 (26.bc6 bc6 27.Rdf1 hg3 28.Kg3 Bh4 29.Kh2 Nf4 30.Bf4 ef4–+) 26...hg3 27.Rff1 (27.Kg3 Bh4 28.Kg2–+) 27...Nf4 28.Kg3 (28.Bf4 ef4 29.Rd2 Ng5 30.bc6 Bh3 31.Kh1 bc6–+) 28...Bh4 29.Kh2 Rf6 30.Bf4 ef4 31.Rd2 (31.bc6 bc6 32.Nh3 Bh3 33.Rh1–+) 31...Rh6 0–1. Macedo,Alexandre Soares De (1845) – Macedo,M Iack (2305), Final do Championship Potiguar Absoluto, 2016.

    5.Nd2 g6 6.e4 (6.d4 e4=) 6...Bg7 (6...d4 7.Ngf3=+) 7.Be2 Ne7 8.h4 (8.Ngf3 d4=) 8...h5 (8...d4 9.Ngf3=+) 9.Ngf3= Qd7 10.0-0 c6 (10...d4 11.c3 dc3 12.Bc3+=) 11.d4 Na6? (better 11...Qc7!?+=) 12.de5+- fe5 13.Be5 Be5 14.Ne5 Qc7 15.f4 (15.ed5 Qe5 16.de6 0-0-0 17.Ba6 ba6+-) 15...0-0-0 16.Qe1 de4 17.Ne4 Nd5? (17...Qb6 18.Qf2 Qf2 19.Rf2+-) 18.Qg3 (better 18.Ba6!? ba6 19.c4 Nb6+-) 18...Bf5 19.Bd3 (19.Ng5 Rhg8+-) 19...Rhe8+/- 20.Rae1 Nf4 21.Qf4 (21.Rf4?! Re5 22.Qf2 b5+=) 21...Qe5 (21...Re5 22.Nd6! Qd6 23.Re5 Bd3 24.Rd1+-) 22.Qe5 (22.Nd6! Qd6 23.Qd6 Rd6 24.Re8 Kd7+-) 22...Re5 23.Ng5?? (better 23.Nd6! Rd6 24.Re5 Bd3 25.Rf8 Rd8 26.Rd8 Kd8 27.cd3+-) 23...Re1 24.Re1 (better 24.Bf5 gf5 25.Re1=) 24...Bd3-/+ 25.cd3 Rd3 26.Re8 (26.Ra1 Nc7-/+) 26...Kc7-+ 27.Ne6 Kb6 28.Rg8 Ra3 29.Rg6 Nb4 30.Nf4 Nd3 31.Nh5 Ra1 32.Kh2 Ra2 (32...a5 33.Rd6 Ne5 34.Nf6-+) 33.Rg4 (33.Nf6 a5-/+) 33...Ne1 (33...c5 34.Nf6-/+) 34.Nf6 Nf3 (34...Rf2!? 35.Ng8 Kc5-/+) 35.Kg3=+ Ne5 36.h5? (better 36.Rg7 Nc4 37.h5=) 36...Ra3 (36...Ng4 37.Ng4 Ra5 38.Kh4-+) 37.Kh4 Ng4 38.Ng4 Ra4?? (38...a5 39.h6 Ra1-/+) 39.h6= Rd4 (39...Ra1 40.Kg5 Rh1 41.Nf2 Rh6 42.Kh6+-) 40.h7+= Rd8 41.Nf6 Rh8 42.g4 a5 43.g5 a4 44.g6 a3 45.g7 Ra8 (45...Ra8 46.g8Q Rg8 47.hg8Q Kc5+-). Zobbie (2475) - zumpili (2515), Rated Bullet game, lichess.org, 2021. (=1.a3 d5 2.b4 e5 3.Bb2 f6 4.d3 Be6 5.Nd2)

    5.Nf3 (--> 4.Nf3 Be6 5.d3).

    5.Nd2 c5

    6.c3 a6 7.g3 Nc6 8.Bg2 Rc8 9.Ngf3 Bd6 10.e4 d4 11.cd4 cd4 12.Nh4 (12.0-0 a5+=) 12...Nge7-/+ 13.Qh5 g6 14.Qh6 Kf7 (14...a5 15.Qg7 Rf8 16.Qh7+=) 15.Nc4 Bc7 (15...b5 16.Nd6 Qd6 17.0-0+=) 16.0-0 b5 17.Na5 (better is 17.Nd2!?+=) 17...Na5–+ 18.ba5 Ba5 19.Rac1 (19.f4 Ng8 20.Ng6 Nh6 21.Nh8 Kg7 22.f5–+) 19...Ng8 20.Rc8 Qc8 21.Qc1 Qc1 22.Rc1 Ne7 23.f4 Rc8 24.Rf1 Kg7 25.Nf3 Rc2 26.fe5 (26.Rf2 Rc5–+) 26...fe5 (26...Rb2 27.Nd4 Bb6 28.ef6 Kf8 29.fe7 Ke7 30.Kh1 Bd4 31.e5–+) 27.Bc1 Bc7 28.Ng5 Bg8 29.Bh3 Rc6 30.Bd2 Rf6 31.Rc1 Bd6 32.Bg2? (better is 32.Bb4–+) 32...Ba3 33.Rc7 Rc6 34.Rb7 Bd6 35.Ba5 h6 36.Nf3 Kf6 37.Bd8 Be6 (37...Rc1 38.Kf2 Rc2 39.Kf1–+) 38.h4? (38.Be7 Be7 39.Ne5 Rc1 40.Kf2 Ke5 41.Re7 Rc2 42.Kf3 Rd2–+) 38...Bc8 (38...Rc1 39.Kf2 Rc2 40.Kf1–+) 39.Ra7 b4 (better is 39...Rc1!? 40.Kf2 Rc2 41.Kf1–+) 40.Ne5 Rc1 (40...Be5 Theme: Deflection from e7 41.Re7) 41.Kh2 0–1. Schuettig,Ruediger – Lewicki,Boguslaw, Myslenice Poland, 1988.

    6.c3 Ne7 7.g3 (7.bc5!? Nec6 8.d4=) 7...Ng6 8.Bg2 Bd6 (8...Nc6 9.b5 Na5 10.Qa4=+) 9.e4 (9.c4 cb4 10.cd5 Bd7=) 9...d4=+ 10.Ngf3 dc3 11.Bc3 0-0 12.0-0 Nc6 13.Qb1 (13.bc5 Bc5 14.Nb3 Bd6=+) 13...Nd4 14.Bd4 cd4 (14...ed4?! 15.bc5 Bc5 16.Qb7=) 15.h4 Ne7 16.h5 Qd7 17.Nc4 Bc7 18.Nh4 (18.b5 Nc8-/+) 18...b5 19.Nd2 Rfc8 20.Nb3 (20.h6 gh6 21.Qd1 a5-/+) 20...Bb6 21.Rc1 Rc3 22.Rc3 dc3 23.Nc5 (23.Qc2!? Rc8 24.h6-+) 23...Bc5 24.bc5 Qd4 (24...Rc8 25.Nf5 Bf5 26.ef5 Rc5 27.Qb3 Kf8 28.Be4-+) 25.Qb4 (25.Qb5!? Rc8 26.Nf3 Qc5 27.Qc5 Rc5 28.d4 ed4 29.Nd4-/+) 25...Rc8-+ 26.Nf3 (26.Qb5!? Qc5 27.Qc5 Rc5 28.f4-+) 26...Qc5 27.Qa5?? (27.Qc5 Rc5 28.d4 ed4 29.Nd4 Kf7-+) 27...c2 (better 27...Nc6 28.Qa6 Rb8-+) 28.Rc1 Nc6 29.Qa6 (29.Qd2 Bb3 30.a4-+) 29...Bb3 (better 29...Qc3 30.Ne1 Nd4-+) 30.Qc8+- Kf7 31.Qd7 (31.Bh3 Qa3 32.Rc2 Ne7+-) 31...Ne7 32.Nh4 (better 32.Bh3 g6 33.Nd2 Qa3 34.Nb3 Qb3 35.hg6 hg6 36.Rc2 f5+-) 32...Qc6?? (better 32...g6 33.Kh2 a6+-) 33.Qa7+- Be6 (33...Kf8 34.Bh3 Ke8 35.Nf5 Nf5 36.Bf5+-) 34.Nf5 Bf5 35.ef5 Qc3 (35...Qe8 36.Rc2 Kf8 37.Rc7+-) 36.Bd5 Ke8 (36...Kf8 37.Qb8 Qc8 38.Qd6+-) 37.Qb8 (better 37.Be6 Qd3 38.Qb8 Qd8 39.Bf7 Kd7 40.Qb5 Nc6 41.Rc2 Ke7 42.Rc6 Kf7 43.Qb7 Kg8+-) 37...Kd7 (37...Qc8 38.Qb5 Kf8 39.Bb3+-) 38.Qb5 (38.Be6!? Kc6 39.a4 ba4 40.Qe8 Kb6 41.Qe7 Qd3 42.Qb4 Qb5 43.Qd6 Qc6+-) 38...Kd6 39.Be6 Qd2 (39...Nc6 40.Qb7 Nd4 41.Qd7 Kc5 42.Qc7 Kb5 43.Bd7 Ka6+-) 40.Qb4 (40.Qd7 Kc5 41.Qe7 Kc6 42.Qd7 Kb6 43.Qd6 Kb7 44.Bd5 Kc8 45.Qc6 Kd8 46.Qb6 Ke8 47.Bc6 Kf7 48.Qc7 Kf8 49.Qd8 Kf7 50.Qe8) 40…Kc7 (40...Kc7 41.Qd2 Nd5 42.Qc2 Nc3 43.Qc3 Kb6 44.Qc6 Ka7 45.Qc7 Ka6 46.Bc4). Zobbie (2480) - zumpili (2395), Rated Bullet game, lichess.org, 2021. (=1.a3 e5 2.b4 f6 3.Bb2 d5 4.d3 Be6 5.Nd2)

    5.Nd2 Bd6

    6.e3 Ne7 7.Ngf3 Nd7 8.Be2 0-0 9.0-0 a5 10.c3 Qe8 11.b5 c6 12.c4 cb5 13.cb5 Rc8 14.e4 d4 15.a4 Bb4 16.Ba3 Ba3 17.Ra3 b6 18.Nh4 Ng6 19.Bh5? (better is 19.Ng6!? Qg6 20.f4+=) 19...Qe7–+ 20.Ra1? (better is 20.Bg6 Qa3 21.Bf5 Bf5 22.Nf5–+) 20...Nh4 0–1. jboger (2210) – peacenotwar (2235), net–chess.com, 2013.

    6.g3 c6 7.Bg2 Ne7 8.e4 0-0 9.Ne2 Nd7 (9...a5 10.ba5 Ra5 11.d4=+) 10.0-0 Rc8 (10...a5 11.c3=+) 11.f4 Qb6 12.Kh1 Bg4 13.c4 Bh5 (13...ef4 14.h3 Be2 15.Qe2=+) 14.c5 (14.Bh3 f5 15.fe5 Be5= (15...Ne5? 16.c5 Qc7 17.cd6 Qd6 18.ef5+–)) 14...Bc5=+ 15.bc5? (15.Bh3!? f5 16.fe5=) 15...Qb2-/+ 16.Rb1 Qa3 17.Rb7 Rfd8 (better 17...Rcd8 18.fe5 Qd3–+) 18.Qc2?? (18.fe5 Qd3 19.Bf3 Bf3 20.Rf3–+) 18...Be2–+ 19.Rfb1 (19.fe5 Bf1 20.Bf1 Rb8 21.ef6 Rb7 22.fe7 Re8 23.ed5 Rb2–+) 19...Bd3 20.Qb3 Qb3 21.R1b3 (21.Nb3?? Bb1 22.fe5 Rb8 23.Rb8 Rb8–+) 21...de4 (21...Nc5 22.Re7 Nb3 23.Nb3–+) 22.Ne4 (22.Ra7 Nc5 23.Re7 Nb3 24.Nb3 Rb8 25.fe5 Rb3–+) 22...Be4 23.Be4 Nd5 (better 23...Nc5 24.fe5 Re8 25.ef6 gf6 26.Bc2 Nb7 27.Rb7–+) 24.Bf5 Nc5 25.Bc8 Nb3 (better 25...Rc8 26.Rb8 Rb8 27.Rb8 Kf7 28.Rc8–+) 26.Be6 Kf8 27.Rb3 ef4 28.Rb7 Rd6 (28...Ne3 29.Kg1 Rd6 30.Bb3–+) 29.Bd5 cd5 30.gf4 d4 (30...a6 31.Kg2–+) 31.Ra7 d3 32.Ra1 d2 33.Rd1 Ke7 34.Kg2 Ke6 35.Kf3 (35.Kf2 Kf5 36.Kf3 Rd3 37.Ke2 Ke4–+) 35...Kf5 36.Ke3 Re6 (better 36...Kg4 37.h4 h5–+) 37.Kf3 Rd6?? (better 37...Re4 38.Rd2 Rf4 39.Kg2 g5–+) 38.Ke3 h5 (38...Kg4 39.h4–+) 39.Kf3 (39.h3 h4–+) 39...h4 40.h3 (40.Ke3 Kg4–+) 40...g6 (better 40...Rd3!? 41.Ke2 Ke4 42.f5 Re3 43.Kf2 Rh3 44.Kg2–+) 41.Ke3 Re6 (better 41...Rd5–+) 42.Kf3 Re4 43.Rd2 Rf4 44.Kg2 g5 45.Rb2 Kg6 46.Rb6 Rf5 47.Rb3 (47.Rd6 Rc5–+) 47...Re5 48.Rd3 (48.Rb6 Re2 49.Kg1 Kf7–+) 48...f5 49.Rd2 (49.Kf3 Rc5 50.Rb3 Ra5–+) 49...Re3 (49...g4 50.Kf2–+) 50.Rf2 (50.Rd6 Kf7 51.Rh6–+) 50...Kh5 (50...g4 51.hg4 fg4 52.Rd2–+) 51.Kh2?? (better 51.Rf5 Re2 52.Kf1-/+) 51...Rg3 (better 51...Re5–+) 52.Rf5-/+ (52.Rf5 Kg6 53.Rf8-/+). BeepBeepImAJeep (2635) – kingston_1972 (2550), lichess.org, 2015.

    6.g3 Ne7 7.Bg2 c6 8.c4 Nd7 9.Ngf3 0-0 10.0-0 Qe8 11.Qc2 Qh5 12.Rfb1 Rac8 13.c5 Bb8 14.a4 f5 15.Nb3 f4=+ 16.Na5 Rc7 17.Ra3 d4 18.Nc4 Nd5 19.Rb3 Rf6 20.Nd6 fg3 21.hg3 Rh6 22.Bc1 Rg6 23.Bd2 N7f6 24.b5 Ne3? 25.fe3+– Rg3 26.Kf2 Rg2? 27.Kg2= Qh3 28.Kg1 Qg3 29.Kh1 Qh3 30.Kg1 Qg3 31.Kh1 Ng4 32.Rf1 Qh3 33.Kg1 Qg3 34.Kh1 Bd5 35.e4 Qh3 36.Kg1 Qg3 37.Kh1 Qh3 38.Kg1 Qg3 39.Kh1 Qh3 40.Kg1 Qg3 41.Kh1 Qh3 ½–½. Drljevic,Ljilja (2185) – Besheva,Svetla (2150), Bucharest (Women), 2004.

    5.e4 d4

    6.Nd2 Bd6 7.g3 (7.c3 dc3 8.Bc3 c5=+) 7...b6 (7...a5 8.ba5 Nc6 9.Bh3=+) 8.Bg2 (8.Bh3 Bf7=) 8...c5 9.Ne2 (9.bc5 Bc5 10.f4 Nh6=+) 9...Ne7 10.bc5 bc5 11.0-0 0-0 12.f4 ef4?? (12...Nbc6 13.c4=+) 13.Nf4 (better 13.e5 fg3 14.Ng3+–) 13...Bf4= 14.Rf4 (14.gf4 Nbc6=) 14...Nbc6=+ 15.a4 Qb6 16.Ba3 Nb4 17.Rb1 a5 (17...Qa5 18.Nb3 Bb3 19.cb3=+) 18.Nb3 (18.Rf2 Qc6 19.Nb3 Rac8= (worse 19...Qa4 20.Nc5 Qc6 21.Ne6 Qe6 22.Bb4 ab4 23.Rb4+–)) 18...Bd7 19.Bb4 ab4 (19...cb4!? 20.Ra1 Ng6=+) 20.a5= Qa7 21.Qe1 (21.Qh5 Rac8=) 21...Nc6 The pressure on the isolated pawn grows 22.Qf1 (22.e5 fe5 23.Rf8 Rf8=) 22...Ne5 (22...Be6 23.Ra1-/+) 23.Bh3=+ Bh3 24.Qh3 Rae8 25.Qg2 c4 26.Nc1? (better 26.dc4!? Nc4 27.Qf2=) 26...Qa5-/+ 27.Rf5 (27.Qd2 Qc7-/+) 27...b3 28.cb3 Qe1 29.Qf1 (better 29.Rf1 Qe3 30.Kh1 cd3 31.Na2–+) 29...Qe3 30.Qf2 cd3 (30...Nd3?! 31.Qe3 de3 32.bc4–+) 31.Na2 d2 32.Rd1 (32.Qe3 de3 33.Kf1 Ra8–+) 32...g6 (worse 32...Qe4 33.Qf1 Ng4 34.Rf4 Qe3 35.Kg2–+; 32...Qb3?! 33.Rd2 Qb1 34.Qf1 Qe4 35.Rff2–+) 33.Rf4 Nd3 (33...Qb3?! 34.Rd2 g5 35.Rf5 Qb1 36.Qf1 Qe4 37.Rff2–+) 34.Rd2 (34.Qe3 de3 35.Rff1–+) 34...Nf2 35.Rff2 d3 36.Nc1 (36.b4 Qe1 37.Kg2 Qe4 38.Rf3 Qb7–+) 36...Re4 (36...f5 37.ef5 Rf5 38.Nd3 Rf2 39.Rf2 Qd3 40.h4 Qg3 41.Kf1 Qh3 42.Rg2 Qh1 43.Kf2 Qe1 44.Kf3 Qe3 45.Kg4 Re4) 37.Rd3 (37.Kg2 Rd4 38.Na2 Rc8–+) 37...Qe1 (better 37...Qc1 38.Kg2 Re1 39.h4 Rg1 40.Kh3–+) 38.Rf1 Qb4 39.Rdf3 (39.Rdd1 Qc5 40.Kg2 Rfe8–+) 39...Rf7 (39...Rd8 40.Kg2–+) 40.Nd3 (40.R3f2 Re1 41.Ne2 Rd7–+) 40...Re3 (better 40...Qb3 41.h3 Rfe7–+) 41.Nb4+– (41.Nb4 Rf3 42.Rf3+–) 1–0. BeepBeepImAJeep (2615) – kingston_1972 (2565), lichess.org, 2015.

    6.Nd2 Be7 7.g3 (7.f4 Nh6=+) 7...Nd7 (7...a5 8.ba5 Ra5 9.Bh3 Bh3 10.Qh5 g6 11.Qh3=+) 8.Bg2 (8.Bh3 Bh3 9.Nh3 c5=+) 8...Nh6 9.Ne2 (9.Bh3 Bh3 10.Nh3 a5 11.ba5 Ra5=+) 9...Nf7 (9...c5!?-/+) 10.f4= 0-0?? (better 10...Nd6=) 11.f5+– Ng5 12.fe6 Ne6 13.Bh3 Kf7? (13...Ng5 14.Bf5 a5 15.ba5 Nc5+–) 14.Be6 Ke6 15.c3 dc3 (15...c5 16.Qb3 Kd6 17.cd4 cd4 18.Bd4 ed4 19.Nd4 Nb6 20.Nc4 Kd7+–) 16.Qb3 Kd6 17.Qd5 1–0. BeepBeepImAJeep (2620) – kingston_1972 (2560), lichess.org, 2015.

    6.Ne2 Bd6 (6...c5 7.c3=+) 7.f4 (7.c3 dc3 8.Nbc3=) 7...ef4 (better 7...Ne7!?=+) 8.Nd4+= (worse 8.Bd4 a5=) 8...Qe7 (8...Bd7 9.Nd2+=) 9.Ne6+– Qe6 10.Qd2 (10.Be2 Nh6+–) 10...Be5 (10...Nc6 11.Nc3+=) 11.Nc3 (11.d4 Bd6 12.Bd3 c6+–) 11...Nd7 (11...Nc6 12.Nd5=) 12.Nd5 (12.d4!? Bd6 13.Bd3+–) 12...0-0-0 13.Nf4 Qg4 (13...Qd6 14.Be5 Qe5 15.Rd1+=) 14.Be5 Ne5 (14...fe5 15.Nd5 Ngf6 16.Ne3+–) 15.Be2 Qd7 16.0-0 Ne7 17.d4?? (17.Qe3 Kb8+–) 17...N7g6?? (better 17...Qd4 18.Qd4 Rd4=+) 18.Rfd1 White prepares d5 (18.Nd5!? Nc6 19.Bb5+–) 18...Rhe8+– 19.d5 (19.c3 Kb8+–) 19...Nf4 20.Qf4 Ng6 (20...Re7+=) 21.Qg3 (better 21.Qg4!?+–) 21...Re4= 22.Bg4?? (better 22.Bf3 Re5 23.c4=) 22...Qg4–+ 23.Qg4 Rg4 24.h3 Rc4 25.Rac1 (25.Rd2 Rc3–+) 25...Kb8 (25...Nf4 26.Kf2–+) 26.c3 (26.Rd2 Rc3–+) 26...Ne5 (26...Nf4 27.Kf2–+) 27.a4 (27.Kf1 Re4–+) 27...c6 (27...a5 28.Rb1–+) 28.d6 (28.dc6 Rd3 29.cb7 Rcc3–+) 28...c5 29.b5 (29.bc5 Rc5 30.Rd4 Rc6–+) 29...Ra4 30.Rd5 Rc4 31.b6 (31.g4 Nf7 32.d7 Ne5–+) 31...ab6 32.Rcd1 (32.Kf2 Nf7 33.Ke3 Nd6–+) 32...Rc3 33.d7 (33.Re1 b5–+) 33...Nc4 (33...Kc7 34.h4–+) 34.Re1 Re3 35.Rd3 (35.Rc1 Re5 36.Re5 Ne5 37.Rb1–+) 0–1. SieStein – sumusername, lichess.org, 2020.

    4.d4 Nc6

    5.e3 a6 6.b5 ab5 7.Bb5 Bd6 8.de5+= Be5 9.Bc6 bc6 10.Nc3?? Rb8=+ 11.Rb1?? Rb2!–+ 12.Rb2 Bc3 13.Ke2 Ba6 14.Kf3 Bb2 15.Nh3 Ne7 16.Nf4 Ng6 17.Ne6 Qe7 18.Nc7 Qc7 19.g3 Qe5 20.Kg2 Kf7 21.f4 Qe3 22.Re1 Qd4 23.Qg4 Qd2 24.Kh3 Qe1 25.Qd7 Ne7 26.Kh4 g5! 27.fg5 fg5 28.Kg5 h6 29.Kh5 Qe5 30.Kh4 Qg5 31.Kh3 Bf1 0–1. rabelloenter (2050) – pe (2360), net–chess.com, 2006.

    5.e3 Bf5 6.Bb5 Bd6 7.Bc6 bc6=+ 8.Ne2 Rb8 9.0-0 g5? 10.Nd2 e4 11.c4 Nh6 12.Ng3 Bg3 13.fg3 a5?? 14.Qa4 0-0 15.Qc6 Rb6 16.Qa4 (16.Qd5 Qd5 17.cd5 ab4 18.ab4 Rd8+–) 1–0. pauloroberto – Vauban, internet, 2006.

    5.de5 Bf5 6.ef6 Nf6 7.Nf3 Be7 8.Nd4 0-0?? 9.Nf5+– Ng4 10.Ne7 Qe7 11.f3 Ne3 12.Qd3 Rae8 13.Bc1 Ne5?? 14.Qe3 Nf3 15.ef3 Qe3 16.Be3 (16.Be3 Re3 17.Kd2+–) 1–0. Mr.Oldenslo – TeaCzar, ChessWorld.net, 2011.

    5.e3 Bd6

    6.Bb5 e4 =.

    6.Ne2 Bg4 7.Qd3 =+.

    6.Ne2 Nh6 7.g3 (7.Nbc3 Be6=) 7...Nf7 (7...Be6 8.Bg2+=) 8.Bg2= Ne7 9.Nd2 (9.0-0 0-0=) 9...0-0 (9...a5 10.de5 fe5 11.b5+=) 10.c4= c6 11.0-0 e4 (11...Bg4 12.f3 Be6 13.c5=) 12.cd5 cd5 13.Nc3 (13.Qb3 Bg4 14.Nc3 Bc7=) 13...Be6 (13...Ng5 14.Qb3 Be6 15.f4 ef3 16.Nf3 Nf3 17.Bf3+=) 14.f3 f5 (14...ef3 15.Qf3 a5 16.b5=) 15.f4 (15.Nb5 ef3 16.Nf3 Qb6 17.Nd6 Nd6=) 15...Nh6 (15...a5 16.b5=) 16.h3 (16.Nb5 a5=) 16...Rf6 (16...a5 17.Qb3+=) 17.Rf2 (17.Nb5 a5=) 17...Rg6 18.Kh2 Rc8 19.Bf1 Kh8 (19...Nf7 20.Qa4+=) 20.Rg2 (20.Rc1 a5=) 20...Neg8 (20...Nf7 21.Nb5 a6 22.Nd6 Nd6 23.Qe1+=) 21.Be2 (21.Nb3 Nf6 22.Qd2 Qe7=) 21...Nf6 22.Nb3 b6 (22...Qe7 23.Rc1=) 23.Rc1 (23.Ba6 Ra8 24.Qd2 Bc8=) 23...Qe7 24.Ba6 Rd8 (24...Rc7 25.Nb5 Nhg4 26.hg4 Ng4 27.Kg1 Ne3 A) 28.Rc7 A1) 28...Nd1 29.Re7 Be7 30.Bc1+/– (30.Na7?! Ne3=); A2) 28...Bc7 29.Qd2 Bf4 30.gf4 Rg2 31.Qg2 Ng2 32.Kg2 Qh4–+; B) 28.Nc7 Nd1 29.Ne6 Qe6 30.Rd1=) 25.Be2 (25.Qe2 Nf7=) 25...Rc8 26.Nb5 Rd8 (26...Bb8 27.Rc8 Bc8 28.Bf1=) 27.Rc6 (27.Nd6 Qd6 28.b5 Rc8+=) 27...Bf7 (27...Bb8 28.Qc2=) 28.Nd6+= Rd6 29.Qc1?? (better is 29.Rc3+=) 29...Nfg4! 30.hg4 (30.Bg4 Rc6) 30...Rc6 31.Qd2 Ng4 32.Kg1 Nf6 (32...Kg8 33.b5 Rc7 34.Na1–+) 33.b5 Rc8 34.a4 (34.Na1 Ng4–+) 34...Ne8 (34...Kg8 35.a5–+) 35.Bd1 (35.a5 Nf6–+) 35...Nd6 36.Ba3 Qd7 37.Qb4 (37.Bd6 Qd6 38.a5 Qa3–+) 37...Nc4 38.Bc1 Qd6 (38...Rh6 39.Rh2 Rh2 40.Kh2–+) 39.Qe1 (39.Qd6 Nd6 40.Bd2 Rh6–+) 39...Re6 (39...Qf6 40.Be2–+) 40.g4 Bg6 41.Qg3 (41.Bd2 Rf6–+) 41...Qe7 (41...Re7 42.gf5 Bf5 43.Rh2–+) 42.Qh3 (42.Bd2 Rf6–+) 42...Rf8 (42...Rf6 43.Rh2–+) 43.Rh2 (43.Nd2 Qb4–+) 43...Qb4 44.Nd2 Nd2 (better is 44...Qc3!? 45.Nb3–+) 45.Bd2 Qb1 46.Qf1 fg4 (better is 46...Kg8–+) 47.Qe2? (better is 47.Bg4 Qf1 48.Kf1–+) 47...Bf5 48.Rh5 (48.Qe1 Ref6–+) 48...Rh6 49.Rg5 (49.Rh6 gh6 50.Kf2 Rg8–+) 49...Rg6 (better is 49...Rh3!? 50.Kg2–+) 50.Rh5 (50.Rg6 Bg6 51.Qg4 Bf5–+) 50...g3 51.Rh4 (51.Qe1 Kg8–+) 51...Rff6 (51...Rh6 52.Rh6 gh6 53.Qh5–+) 52.Kg2 (52.Be1 g2–+) 52...Rh6 53.Rh6 (53.Rh5 Kg8–+) 53...Rh6 (53...gh6?! 54.Be1–+) 54.Kg3 (54.Qe1 Rh3–+) 54...Rh1 (54...Rg6 55.Kf2 Bg4 56.Qg4 Rg4 57.Bg4–+) 55.Be1 Qd3 (better is 55...Qc1 56.a5–+) 56.Qd3 (56.Bd2 Qa3 57.Kg2–+) 56...ed3 57.Kf2 d2! (57...d2 58.Bd2 Rd1–+) 0–1. Smit,Manuel – Offringa,Tjaart Jan, Utrecht OKU II op, 2001.

    5.de5 Ne5

    6.Nc3 c6 7.e4 a5 8.b5 Ne7 (8...Qe7 9.Qh5 g6 10.Qh4=) 9.Nf3+= Bg4 10.Be2 Bf3 11.Bf3 (11.gf3 Qc7 12.Qd4 de4 13.fe4 Rd8+=) 11...Nc4= (worse is 11...Nf3 12.Qf3 (12.gf3?! Qb6=) 12...d4 13.Ne2+/–) 12.Qc1 d4 13.Ne2 c5 14.Ng3 Nc8 (14...Ng6 15.Be2 Nb2 16.Qb2=) 15.0-0 (15.c3 d3 (worse is 15...Nb2 16.Qb2 Nb6 17.Qa2+/–) 16.0-0 Bd6=) 15...N8b6 16.e5 (16.a4 Qc7 17.c3 d3+=) 16...Qc7= 17.ef6 (17.Re1 0-0-0 18.Rb1 Ne5+=) 17...0-0-0+= 18.fg7 (18.c3 d3+=) 18...Bg7 19.Ra2 (19.Rb1 Be5 20.Qg5 h5+=) 19...Kb8 20.Ne4 (20.Qd1 Qf7-/+) 0–1. Baroin,Bernard – Johansson,Mats, IECG TE–2004–S–01703, 2006.

    6.Nd2 a5 7.b5 (7.e4 ab4 (7...Qe7 8.ba5 de4 9.Qh5 Ng6 10.Qb5 c6 11.Qb6 Nf4 12.Qe3 Nd5) 8.ab4 Ra1 9.Qa1 Bb4 10.Be5 Bd2 11.Kd2 de4 12.Ke3 fe5) 7...Bd6 (7...Bg4 8.Ngf3= (8.Be5 fe5 9.c4 Nf6 10.Ngf3 e4 11.Nd4 Bd6 12.Qc2 e3) 8...Bd6 9.Ne5 fe5 10.h3 Be6 11.e4 de4 12.Be5 Be5; 7...Bf5 8.Ngf3 Qe7 (8...Nf3 9.Nf3 Ne7 10.e3 Qd7 11.Bd3 Bd3 12.Qd3 Nf5) 9.Ne5 fe5 10.Nf3 d4 11.c3 dc3 12.Bc3 Rd8) 8.Ngf3 (8.e4 Ne7= 9.c4 de4 10.Ne4 Bf5 11.Qh5 Kf8 12.Qe2 N7g6) 8...Ne7 (8...Bg4 9.h3 Bf3 10.Nf3= Ne7 11.Nd4 Nc4 12.Bc3 Qd7) 9.c4 (9.e4 0-0= 10.c4 c6 11.Be2 Nf3 12.Bf3 Be6; 9.Ne5 Be5 10.Be5 fe5 11.e4 0-0 12.ed5 Nd5) 9...c6 (9...Nf3 10.Nf3 dc4 (10...Be6 11.Nd4 Bf7 12.cd5 Nd5) 11.e4= c3 12.Bc3 Ng6; 9...0-0 10.e4 de4 11.Ne4 Bf5 12.Nd6 cd6) 10.e3 (10.e4 0-0= 11.Be2 Nf3 12.Bf3 Be6; 10.cd5 cd5 11.e3 Bf5 12.Nd4 Bg4) 10...0-0 (10...Bg4 11.cd5 Nd5 12.Qa4 Nf3) 11.Rc1 (11.cd5 cd5 12.Be2 Bg4) 11...Qe8 (11...Bg4 12.Be2= (12.c5 Bb8) 12...Nf3) 12.c5 (12.cd5 cd5 13.Be2 Bd7 14.Be5 Be5 15.Ne5 fe5=) 12...Bc7 (12...Bb8 13.Nd4=) 13.a4 (13.Nd4 Qg6=) 13...Bd7 (13...cb5 14.ab5 Nf3 15.Nf3=) 14.Nd4 Nf5 15.N2f3 (15.b6 Nd4 16.Bd4 Bb8=) 15...Nd4 (15...Qg6 16.b6 Bb8 17.Bc3=) 16.Bd4 (16.Nd4 Qg6=) 16...Qg6 17.Nh4 (17.h3 Nf3 18.Qf3 Bf5=) 17...Qe4 18.Nf3 Nf3 (18...Rae8 19.Be2=) 19.Qf3 Qf3 20.gf3 Be5 (20...cb5 21.Bb5 Bb5 22.ab5=) 21.Rb1 Bd4 22.ed4 Bf5 (22...Rae8 23.Kd2=) 23.Rb2 Rfe8 24.Kd2 Re6 25.Bd3 Bd3 26.Kd3 Rae8 27.bc6 bc6 28.Rd1 (28.Rhb1 Re1=) 28...f5 29.h4 f4 30.Rb6 Rh6 31.Rh1 Rhe6 32.Rhb1 Rh6 33.Rb8 Kf8 34.Re8 Ke8 35.Rb8 Ke7 (35...Kf7 36.Rb7 Kf8 37.Rc7=) 36.Ra8 (36.Rb7 Kf8=) 36...Rh4 37.Ra5 Rh1 38.Ra7 Kf8 39.Ra6 Ra1 40.a5 Ra3 41.Ke2 Ra2 42.Kf1 Ra4 (42...Rd2 43.Rc6 Rd4 44.Rc8 Ke7 45.Rc7 Kf6 46.a6+=) 43.Rc6 Rd4 (worse is 43...Ra5 44.Rd6+/–) 44.Rc7 Ra4 45.Ra7 Ke8 46.Ke2 (46.a6 Kd8=) 46...h5 (46...h6 47.Kd3=) 47.Kd3 (47.c6 Rc4 48.Rc7 Kd8 49.Rd7 Kc8 50.Rd5 g6+=) 47...g6 48.Rg7 h4 (48...Ra5 49.Kd4+=) 49.Rg6 h3 (49...Ra5 50.Kd4+=) 50.c6 (50.Re6 Kd7 51.Rd6 Kc7 52.Rd5 Ra5+/–) 50...Ke7 (50...Kd8 51.Rg7+=) 51.Rh6+/– Ra5 (51...Kd8!? 52.Rh7 Kc8+/–) 52.Kd4+– (52.Rh3?! Kd6 53.Rh6 Kc5+=) 52...Kd8 53.Rh3 (53.Rh7!?+–) 53...Kc7+/– 54.Rh6 Rb5 55.Rf6 (55.Ke5 Rc5+=) 55...Ra5+– 56.Ke5 Rc5 57.Kf4 (57.Rf4 Kc6 58.Rf6 Kc7+–) 57...Rc6+/– 58.Rc6 Kc6 59.Ke5 Kc5 60.f4 d4 61.f5 d3 62.f6 d2 63.f7 d1Q 64.f8Q Kc4 65.Qf7 Kc5 66.f4 Qd4 (66...Qe2 67.Kf6 Qb2 68.Kg6 Qg2 69.Kh6+–) 67.Kf5 Qd3 68.Kf6 Qc3 69.Ke7 Qe3 70.Kf8 Qd4 71.Kg8 Qd8 72.Kg7 Qd4 73.Qf6 Qd7 74.Kf8 Qd4 (74...Kb5 75.f5 Qc8 76.Kg7 Qc7 77.Qf7 Qg3 78.Kf8 Qa3 79.Qe7+–) 75.Ke7 Qf2 76.f5 Qg3 77.Kd7 Qd3 78.Ke8 (78.Ke8 Qb5 79.Kf7 Qb3 80.Qe6+–) 1–0. Taulien,Hans_Juergen (2350) – Vonhoff,Joerg (2280), remoteschach.de, 2004.

    6.e3 c5 (7.Be5 fe5 8.Qh5 Ke7 9.Qe5 Kf7+=). fsakvador – Shakkimestari, internet, 2006.

    6.e3 Bf5 7.Be5 fe5 8.Nf3+=.

    6.e3 Bg4 7.Be2= Be2 8.Ne2 Qd6 (8...Nc4 9.Bd4=) 9.Be5 (9.0-0 0-0-0=) 9...fe5 10.Nbc3 (10.0-0 0-0-0=) 10...0-0-0 11.Nb5 (11.Qd3 Nf6=) 11...Qa6 12.Nbc3 Nf6 13.0-0 g5 (13...Qe6 14.Qd3+=) 14.h3 (14.Qd3 Qe6=) 14...h5 (14...Qe6 15.f4 gf4 16.ef4-/+) 15.f4 (15.Qd3 Qe6+=) 15...Qb6 (15...gf4 16.Qd3 Qe6 17.ef4 Qb6 18.Kh2 e4+=) 16.fg5 (16.Qd3!? ef4 17.Kh1+=) 16...Qe3-/+ 17.Kh1 Qg5 18.Ng1 (18.Qd3!? Bg7 19.Rf5–+) 18...Rg8 19.Rf2 (19.Qe2 e4–+) 19...Qg3 (19...Ng4 20.Re2 Ne3 21.Qd2–+) 20.Qf3 Be7 (20...Qf3 21.Nf3 Re8 22.Nh4–+) 21.Qg3 Rg3 22.Rf3 (22.Nge2 Rgg8–+) 22...Rdg8 23.Rg3 Rg3 24.Nge2 Re3 25.Re1 (25.Kg1 d4 26.Kf2 Rc3 27.Nc3 dc3–+) 25...Kd7 (25...d4!? 26.Nd1 Ra3 27.Nd4 Bb4 28.Rf1–+) 26.Kg1 d4 27.Kf2 (27.Rd1 Ke6 (27...Rc3?! 28.Nc3 c5 29.bc5+=) 28.Kf2 Rc3 29.Nc3 dc3–+) 27...a6 (27...c5 28.b5–+) 28.Nb1 (28.Rd1 Bd6 29.Nb1–+) 28...Ne4 29.Kf1 c5 30.bc5 Bc5 31.a4 Bb4 32.Rd1 Ke6 (32...Ke6 33.Nc1 h4–+) 0–1. KHW – mrkt, ChessWorld.net, 2003.

    6.e4 de4+= 7.Qd8 (7.Nc3 Bf5+=) 7...Kd8 8.Nd2 Bf5 9.Ne2 (9.Be5 fe5 10.Rd1 Ke8+=) 9...e3 10.fe3 Bc2 11.Nf4 Bf5 12.Nc4 (12.e4 Bd7+=) 12...Ng6 (12...Nc4 13.Bc4 a5 14.b5+=) 13.Rd1= Kc8 14.Be2 Nf4 (14...N8e7 15.Bf3+=) 15.ef4= Nh6 (15...Ne7 16.g4 Bc2 17.Rd2=) 16.0-0 (16.Kf2 c6=) 16...Nf7 (16...Be7 17.Rfe1=) 17.Rfe1 Nd6 18.g4 Bd7 19.h3 (19.g5 fg5 20.fg5 Nc4 21.Bc4 a5=) 19...Nc4 20.Bc4 b5 (20...a5 21.b5+=) 21.Bd5= c6 22.Be6 Be6 23.Re6 Kc7 24.g5 Rg8 25.Kf2 a5 26.ba5 (26.gf6 gf6 27.Rf6 ab4 28.Be5 Kb7 29.Rd7 Kb6 30.ab4 Bb4 31.Rh7 Ra3 32.Bc7 Kc5 33.Bd6 Kc4 34.Bb4 Kb4 35.Rc6 Rgg3=) 26...Bc5 (26...Ra5 27.gf6 gf6 28.Rf6 Ba3 29.Be5 Kb6 30.Bd4 Bc5 31.Bc5 Kc5 32.Rc1 Kb4 33.Rfc6 (worse is 33.Rcc6 Ra2 34.Kf3 Ra3 35.Ke4 Rh3-/+) 33...Ra2 34.R6c2 Rc2 35.Rc2=) 27.Kf3 Ra5 28.gf6 gf6 29.Rf6 Ra4 30.Rf7 Kb6 31.Rdd7 Ba3 32.Be5 h5 33.Rh7 Bc5 34.Rh5 Ra3 35.Ke4 Re3 36.Kf5 b4 37.Rg5 (37.h4 b3 38.Rg5 Ra8=) 37...Ra8 (37...Rg5 38.fg5 Rh3 39.g6+/–) 38.Kg4 (38.h4 b3 39.Kf6 Re5 40.Re5 b2=) 38...Ra2 (38...Re2 39.Kh5=) 39.Rd8 (39.h4 b3=) 39...Be7= 40.Bd4 (40.Rb8 Kc5 41.Bf6 Kc4=) 40...Kc7 41.Re8 (41.Rh8 Re1 42.Rgh5 Rd2 43.Be5 Bd6 44.R5h7 Kb6=) 41...Kd7+= 42.Be3 (42.Rb8 Re4 43.Rg7 Rd4 44.Rb7 Kd6 45.Rge7 Kc5+=) 42...Ke8 43.Rg8 Kd7 44.Kf3 c5 (44...b3 45.Rb8 b2 46.Bd4+=) 45.Rg7 Rc2 (45...Ra5 46.f5 Ke8 47.Ke4+=) 46.f5 Ke8 47.Rg8 Kd7 (47...Kf7 48.Rc8+=) 48.Rg7= Ke8 (48...Ke8 49.Rg8 Kf7+=). Pintonello,Gilberto – Johansson,Mats, IECG, 2004.

    6.Be5 fe5 7.e4 d4 8.Qh5+/– Ke7 (8...Kd7 9.Nf3 Qf6 10.Qe5 Qe5 11.Ne5 Ke6 12.Nf3+–) 9.Qe5 Be6 10.Nf3 h6? (better is 10...Qd6 11.Qd6 Kd6 12.Nd4 a5+–) 11.Nd4 (11.Qd4?! Nf6+–) 11...Qd6 (11...Qd7 12.Bc4 Re8 13.Ne6+–) 12.Nf5 (12.Nf5 Kf7 13.Nd6 Bd6 14.Qb5+–; 12.Ne6?? Qe5 13.Nf8 Rf8–+; 12.Qe6?! Qe6 13.Ne6 Ke6+–) 1–0. wesolyPolak (1725) – GopStop, GameColony.com, 2002.

    6.Be5 fe5 7.e4 Nf6 8.ed5 Qd5 9.Qd5 Nd5=.

    6.Nf3 Nf3 7.ef3 c5 8.Bb5 Kf7 9.0-0 cb4 10.ab4 Bb4 11.Ra4 Be7 12.c4 a6 13.cd5 Nh6 14.d6 Bd6 15.Bc4 (15.Bc4 Kg6 16.f4=+). supertimchan (2075) – malaysianisme, net–chess.com, 2004.

    4.d4 ed4

    5.Bd4 a6 6.c4 Nd7 (6...dc4 7.e3 Be6 8.Qc2=) 7.c5 (7.cd5 Bd6+/–) 7...b5 8.Nf3 c6 9.Nc3 (9.e3 Qc7+/–) 9...Be7 (9...a5 10.e4 Qe7 11.Nd2+=) 10.g3 Nh6 11.Bg2 0-0 12.0-0 Nf5 13.e4 Nd4? (13...de4!? 14.Ne4 Qc7+=) 14.Qd4 (better is 14.Nd4!? Nb8 15.ed5+–) 14...Bb7 15.ed5 cd5 16.Nd5 Nc5? (better is 16...Nb8 17.Rad1 Bd5 18.Qd5 Qd5 19.Rd5 Nc6+–) 17.Ne7 (17.bc5 Qd5 (< 17...Bd5 18.Rfe1 Re8 19.Rac1=) 18.Qd5 Bd5-/+) 17...Qe7 18.Qc5 Qe2 (18...Rfe8 19.Rfe1 Qd7 20.Qh5+–) 19.Rfe1 (better is 19.Nd4 Bg2 20.Ne2 Bf1 21.Kf1+–) 19...Qd3 (19...Qc4 20.Qh5+–) 20.Nh4 (better is 20.Rad1!? Qc4+–) 20...Bg2 21.Ng2 Rac8 22.Qe7 Rfe8 23.Qe8 (23...Re8 24.Re8 Kf7 25.Rc8+–) 1–0. slavisa11 – Mirjana5, Live Game Caissa's Web, 2004.

    5.Bd4 Be6 6.e3 Ne7 (6...Nc6 7.Nf3=) 7.Bd3 Nbc6 8.Ne2 Nf5 9.Bb2 (9.0-0 Qd7=) 9...Bd6 10.0-0 (better is 10.Nbc3=) 10...0-0?? (better is 10...Qd7=) 11.Bf5+– Bh2 12.Kh2 Bf5 13.Nbc3 Ne7 14.Rh1 Qd6 (14...a5 15.Nd4 Bg6 16.b5+–) 15.Kg1 c6 (15...a5 16.Nd4 Bg6 17.b5+–) 16.Nd4 Bg6 17.Nce2 (17.Qg4 a5 18.b5 Rad8+–) 17...a5 18.b5 (18.ba5 Ra5 19.Nf4 Rfa8+–) 18...c5 19.Nf3 Rfd8 20.Nf4 Be4 21.Nd2 Bf5 22.a4 (22.Qh5 h6+–) 22...Rd7 23.Rc1 Rad8 24.Qh5 (24.Qf3 c4 25.Nb1 Be4+–) 24...h6 25.c3 Bh7 26.Ba3 (26.Nb3 b6+–) 26...b6 27.Nf3 Bf5 28.Nd4! Qe5 (28...cd4 29.Bd6 Pinning (29.Bd6 Deflection)) 29.Nf5 Qf5 30.Qf5 Nf5 31.Rd1 g5 (31...Kf7 32.g4 Nd6 33.Rd5+– (33.Nd5?! Nc4 34.Bc5 Rd5 35.Rd5 Rd5+/–)) 32.Nh5 Kf7 33.Bc1 (33.g4 Nd6+–) 33...Kg6 34.g4 Nh4 (34...Nd6 35.Ng3+–) 35.Ng3 Nf3 36.Kg2 Nh4 ½–½. Winiger,Albert (2150) – Zimmermann,Bernd (1975), remoteschach.de, 2004.

    5.Nf3 c5 6.bc5 Bc5 7.Bd4 Bd6 8.Nc3 Ne7 9.e4 de4 10.Ne4 Nbc6 (10...Bf5 11.Bb6 Bc7 12.Bc7 Qc7 13.Nd6 Kf8 14.Nf5 Qc3 15.Ke2 Nbc6+/–) 11.Bf6!+– Bb4 (11...gf6 12.Qd6) 12.ab4 Qd1 13.Rd1 gf6 14.b5 Nb4 15.c3 (15.Nf6?! Kf7 16.Ne4 Nc2 17.Kd2 Nb4+–) 15...Nbd5 16.Bc4 Be6 17.Rd5! Bd5 (17...Nd5 18.Bd5) 18.Nf6 Kf8 19.Nd5 (19...Nf5 20.Bd3+–; 19.Bd5?! Kg7 20.Bb7 Rab8 21.Nh5 Kh6+–) 1–0. kamret (2215) – pucela (1955), GameColony.com, 2003.

    5.Bd4 Nc6

    6.Bb2 Bd6 7.e3=.

    6.Bb2 Bf5 7.Nf3 Bd6 8.Nc3 Nge7 9.e3 (9.Nd5? Nd5 10.e3 Nde7–+) 9...a6 (9...a5 10.b5 (10.Nd5? Nd5 11.c4 Nde7–+) 10...Ne5 11.Nd4= (11.Nd5? Nd5 12.c4 Nb6–+)) 10.Be2 (10.Bd3 Qd7 11.0-0=) 10...0-0 (10...Ne5!?=) 11.Nd5+/– Bb4?? (11...Qd7+/–) 12.ab4 (better is 12.Nb4 Qe8 13.Bc4 Kh8 14.0-0+–) 12...Nd5 (12...Qd5 13.Qd5 Nd5 14.c3=) 13.Bc4 (13.b5 Nce7 14.Nd4 Be4+=) 13...Be6 (13...Be4 14.c3=) 14.c3 (14.b5 Nce7+=) 14...Nf4 (14...Ne5 15.Bb3=) 15.Qb3 (worse is 15.ef4 Bc4 16.Bc1 Qe7 17.Be3 Rad8-/+) 15...Re8 (15...Qe7=) 16.Kf1 (16.0-0!? Bc4 17.Qc4 Ne6 18.Rfd1+=) 16...Bc4+= 17.Qc4 Ne6 18.Ke2 Kh8 (18...Qe7 19.Rhd1=) 19.Rad1 (19.Rhd1 Qe7=) 19...Qe7+= 20.h4 (20.Rhe1 a5+=) 20...Rad8 21.g4 (21.Qg4 a5+=) 21...Rd1 (21...Rd6 22.Rd6 Qd6 23.Re1-/+) 22.Kd1 (22.Rd1 Rd8+=) 22...Qd6 (22...Rd8 23.Ke1-/+) 23.Kc1+= Ne5 24.Ne5 Qe5 (24...fe5 25.Rd1 Qf8 26.Qd5+=) 25.Qd3 (25.Rd1 Kg8+=) 25...Rd8 (25...c5 26.Qd7 Rb8 27.Rd1+=) 26.Qc2 (26.Qf5 Qd6=) 26...Qd5 (better is 26...c5+=) 27.Rh2? (better is 27.Rd1 Qc4 28.Rd8 Nd8 29.Qf5=) 27...Qc4–+ Threatening mate: Qf1 28.Rh1 Qg4 29.h5 (29.Rd1 Qh4 30.Rd8 Nd8–+) 29...Qg2 (29...Qf3 30.Rg1–+) 30.Rh4?? (better is 30.Re1–+) 30...Qf1 0–1. Bo Huynh Nhat,Truong – Nguyen Huynh Trong,Hai, VIE–ch U09 Vung Tau, 2004.

    5.Bd4 Bd6

    6.e3 Bf5 7.Bd3 Bd3 8.Qd3 Qd7 9.h3 (9.Nf3 Nc6=) 9...Ne7 10.Nf3 Nbc6 11.Bb2 Ne5 12.Ne5 Be5 13.Be5 fe5 14.Nd2 0-0 15.Ne4?? (better is 15.e4+=) 15...Qf5–+ 16.Nc5 Qf2 17.Kd1 Nf5 (17...Qg2!? 18.Re1–+) 18.Re1 d4 19.ed4 ed4 20.Ne4 (20.Qd2 Ne3 21.Kc1 Qg3–+ (21...Qg2?! 22.Qg2 Ng2 23.Re7–+; 21...Ng2 22.Re2 Qh4 23.Rg2+/–)) 20...Qg2 21.Kc1 Ne3 22.Kb2 (22.Re2 Qh3 23.Kb2 b5 24.Qb5 a5–+) 22...Rae8 23.Nd2 Rf2 24.Rg1 (24.Kc1 Qg3 25.Rh1–+) 24...Rd2 25.Qb3 (25.Rg2 Rd3 (25...Rg2?! 26.Re1=) 26.Rg7 Kg7 27.cd3 Rf8 28.Rg1 Kh6–+) 25...Qd5 26.Qa4 (26.Qd5 Nd5 27.Rad1–+) 26...b5 27.Qa7 Rc2 0–1. Wagner,Jean Philippe (1680) – Dourerassou,Jonathan (2155), Noisy op, 2003.

    6.Nf3 Nc6 7.e3 Be6 8.Bb5 Nge7 9.Nbd2 0-0 10.0-0 a5 11.ba5 Na5 12.Nb3 Nb3 13.cb3 Ra3 14.Qc2 Bf5 15.Qb2 Ra1 16.Ra1 c5 17.Bc3 Qb6 18.Be2 Nc6 19.Rd1 Rd8 20.Bf6? (better is 20.Kh1!? Be6 21.Bd3-/+) 20...gf6–+ 21.Qf6 Ne7 22.Ne5 Rf8 (22...Qb3 23.Nf7 h5 24.Nh6 Kh7 25.Nf5+–) 23.Qg5 Kh8 24.Qg3?! (24.Qh6 Qd8 25.Nc4–+) 24...Be4 25.f3 Bc2 26.Rd2 (26.Nd7 Bg3 27.Nb6 Bd1 28.Bd1 Bc7–+) 26...Qb3 27.Nf7 (27.Kf2 Qc3 28.Rc2 Qc2 29.Nf7 Rf7 30.Qd6–+) 27...Rf7 28.Qd6 Qe3 (28...Qe3 29.Kf1 Qd2 30.Qb8 Ng8 31.Qe5 Nf6–+) 0–1. Clark,Mark – Manheimer,Gunter (1895), RD–2009–0-00027, 2009.

    5.Nf3 a5

    6.b5 Bd6 7.Qd4 (7.Nd4 c5 8.bc6 bc6=) 7...Ne7 8.c4 (8.e3 Nd7=) 8...c5 9.Qd2 d4 10.e3 Qc7 (10...de3!? 11.fe3 Qc7=) 11.ed4+= Bg4 12.Be2 Nd7 13.Nc3 (13.h3 Bf3 14.Bf3 cd4 15.Bd4 Ne5 16.Bh5 g6+=) 13...0-0 (13...Nb6 14.dc5 Bc5 15.Ne4 Bf3 16.Bf3 Nc4 17.Qe2 Nb2 A) worse is 18.Nc5 Nd3 (worse is 18...Qc5 19.Qb2 Qb6 20.0-0+/–) 19.Qd3 Qe5 20.Kd2 Qc5-/+; B) 18.Qb2+/–) 14.0-0 (14.Ne4 Bf4 15.Qc2 Rae8+=) 14...Rad8 15.h3 Bf3 16.Bf3 (worse is 16.gf3 Bf4 17.Qd1 cd4-/+) 16...cd4 17.Nd5 (17.Nd5 Qc4 18.Ne7 Be7 19.Be2=). Degterev,Pavel – Aberbach,Angel, SH–2006–0-00057, 2006.

    6.b5 c5

    7.bc6 bc6 8.Nd4 Qb6 9.Bc1 Bd6 10.Nc3 Be5 (10...a4 11.e3=) 11.e3 Ne7 12.Rb1 Qc7 13.Bd3 0-0 14.f4 Bd6 (14...Bd4 15.ed4 Nf5 16.Ne2+=) 15.0-0 (15.Na4 Na6+=) 15...Na6= 16.Na4 f5 17.c4 Nc5 18.Nc5 Bc5 19.Qc2 Qd6 20.cd5 cd5 21.Bb2 Bd7 (21...Ba3?? 22.Ba3 Qd7 23.Bb5+–) 22.Qc3 Rac8 (22...Rfc8 23.Be2 Bb6 24.Qd3=) 23.Qa5+= Ra8 24.Qe1 (24.Qd2 Ba3 25.Ba3 Ra3+=) 24...Rfe8 Attacking the isolated pawn on a3 (24...Ba3 25.Qg3 Bb2 26.Rb2+=) 25.Qg3+/– g6 (25...Ng6 26.Rfe1+/–) 26.Rf2 (26.Nc2 Ba4+/–) 26...Nc6 (26...Ba3!? 27.Nb5 Bb5 28.Bb5 Rec8=) 27.Nb5+/– Qe7 28.Re2 Rec8 29.Rc1 (29.Qf3 Qe6+/–) 29...Na5 30.Nd4 Nc6? (better is 30...Ba3 31.Rc8 Bc8 32.Nf5 Bf5 33.Ba3 Qe6 34.Bf5 Qf5+/–) 31.Nf5+– Bf5 32.Bf5 Rcb8 33.Kf1 (better is 33.Bg6 Rb2 34.Be4 Kh8 35.Rb2 Ra3 36.Kf1 de4 37.Qg5+/–) 33...d4?? (better is 33...Kf8 34.Bg4 Na5+/–) 34.ed4 Qf7 (34...Qe2 35.Ke2 Rb2 36.Kf1 Ra3+–) 35.Be6 Bd4 36.Bf7 Kf7 37.Bd4 Nd4 38.Rc7 Kg8 (38...Kf8 39.Qg5 Rb1 40.Kf2 Rf1 41.Kf1 Kg8 42.Qe7 Nf5 43.Qh7 Kf8 44.Qf7) 39.Qh4 1–0. themonkey (2045) – jairna1 (1980), GameColony.com, 2002.

    7.bc6 Nc6 8.Nd4 Qb6 9.Ra2 Bg4 10.h3 Bh5 11.Ne6 Bc5 Black prepares the advance d4 (11...Bf7 A) 12.Qd5? Nb4 13.Bd4 A1) 13...Be6?! 14.Qh5 (14.Bb6? Nd5 15.Rb2 Bf5–+) 14...g6 15.Bb6 gh5 16.Rb2-/+; A2) 13...Qe6?! 14.Qe6 Be6 15.Rb2–+; A3) 13...Nd5 14.Bb6 Nb6 15.Nc7 Kd8 16.Na8 Ba2 (16...Na8?! 17.Rb2+=) 17.Nb6 Bb1–+; B) 12.Nf8?! d4 13.Nd7 Kd7=; C) 12.Bd4 Nd4 13.Nd4=) 12.Nc5 (12.Ng7 Ke7 13.Qd2 A) 13...Bf2 14.Kd1 Bg6 15.Nc3-/+ (15.Qd5?? Rd8 16.Nc3 Be4–+); B) 13...Bf7 14.Nf5 Ke8+=) 12...Qc5 13.Nd2 a4 14.c4 d4 15.Ne4 Qa5 (15...Qe5 16.Nd2+=) 16.Qd2= Qe5 17.Ng3 Bf7 18.e4 Qc5 Attacks the isolani on c4 19.Bc1 (19.Nf5 g6 20.Ng3 Bc4 21.Bc4 Qc4+=) 19...b5 20.Nf5 (20.cb5 Ba2 21.bc6 Qc6+=) 20...bc4-/+ 21.Qf4 (21.Rc2 Kf8-/+) 21...Kf8 22.Qc7 (22.Qg3 Bg6 23.Rc2 Bf5 24.ef5 c3–+) 22...Re8 (22...Qa5 23.Qa5 Ra5 24.Rb2-/+) 23.Qd6 (better is 23.Nd6!? Re7 24.Qc8 Be8 25.Bf4-/+) 23...Qd6–+ 24.Nd6 c3 25.Ne8 (25.Ra1 Rd8 26.Nb7 Ra8–+) 25...Ba2 (25...Ke8?! 26.Ra1 Bb3 27.Bf4+=; 25...Be8?! 26.Ra1=) 26.Bb5 (26.Nd6 Bb3–+) 26...Ke8 (26...Nge7 27.Nd6 Bb3 28.f4–+) 27.Bc6 Kf7 28.Ba4 Bc4 29.Kd1 (29.Bf4 Ne7 30.Bd6 Ra8–+) 29...d3 30.Bd2 cd2 Black fights for the Initiative 31.Kd2 Ne7 32.Rc1 Be6 33.Rc3 f5 34.f3 Ng6 35.Bb5 (35.ef5 Bf5 36.Bb3 Kf6-/+) 35...Nf4 36.Rc7 (36.e5 Ng2 37.Rc7 Kg6–+) 36...Kf6–+ 37.ef5 (37.g3 Nh3 38.Ke3 g5 39.ef5 Bf5 40.Rc6 Ke5 41.Rc5 Ke6 42.Rc6 Kd5–+) 37...Bf5 38.Rc6 Kg5 39.g3 Nh3 40.Rc5 Kf6 41.Bd3 Bd3 42.Kd3 h5 43.Rc6 (43.a4 g5–+) 43...Ke5 44.Rc5 (44.Rc4 g5–+) 44...Kd6 45.Rc4 (45.Kc4 h4 46.gh4 Rh4 47.Kb5 g5–+) 45...Nf2 46.Ke3 Nh1 47.g4 (47.Rd4 Kc6 48.g4 h4–+) 47...h4 48.Rd4 Kc5 (48...Kc5 49.Rd2 Ng3 50.Rc2 Kd5–+) 0–1. Pierred (2230) – Wph (2405), Rated game, 5m + 0s, 2005.

    7.bc6 Nc6 8.Nd4 Qb6 9.Bc3 Bc5 10.e3 Nge7 11.Nb5 0-0 12.Nd2 Bd7 13.Nb3 Ne5 14.Nc5 Bb5 15.Qb1 Qc5 16.Bd4 Qc7 17.Bb5 Nf5 18.c3 Nd6 19.Be2 b5 20.0-0 Qc6 21.Rd1 Nec4 22.Qc2 a4 23.Bd3 f5 24.Qb1 Rac8 25.Qb4 Rf7 26.Rab1 Rb7 27.Bc2 g6 (27...Rf7 28.Re1=) 28.Bd3 Ne4 29.Rbc1 ½–½. Martins,Karin – Naasen,Nils (1915), IECG, 2004.

    5.Nf3 Nc6

    6.Nd4 Nd4 7.Bd4 Bd6 8.Nc3 c6 9.e4 Ne7 10.ed5 (10...Nf5 11.dc6 Qe7 12.Be2 bc6 13.0-0 Nd4 14.Qd4+=). guest2511 – guest1568, ICC, 2003.

    6.Nd4 Ne5 7.Nd2=.

    6.Nd4 Nge7 7.Nc6 Nc6 8.b5 Ne5 (8...Na5 9.Bc3 Nc4 10.e4=) 9.e4 (better is 9.Be5!? fe5 10.e4+=) 9...de4+= 10.Qd8 Kd8 11.Nd2 Bf5 12.0-0-0 (12.Be5 fe5 13.Bc4 e3 14.fe3 Bc2+=) 12...Bd6-/+ 13.h3 (13.Be5 fe5 14.Kb2 Ke7-/+) 13...Nd7 (13...Re8 14.g4 Bg6 15.Bg2+=) 14.g4+= White launches an attack 14...Bg6 15.Bg2 Re8 16.Rhe1 The pressure on e4 grows 16...a6 (16...Bf4 17.Kb1+=) 17.Ne4 Bf4 18.Kb1 ab5 19.Nc5 Re1 20.Nb7 Kc8 (20...Ke7 21.Re1 Ne5 22.Bd4=) 21.Re1 Ra7 22.h4 (22.Re7 Nf8 23.Rg7 Rb7 24.Bb7 Kb7 25.Bf6 Bd6=) 22...h5 (22...c6!? 23.h5 Kb7 24.hg6 hg6=) 23.Re7 Nf8 24.Bc1 (24.gh5!? Bh5 25.Rg7 Rb7 26.Bb7 Kb7 27.Bf6=) 24...Bc1+= 25.Kc1 Rb7 26.Bb7 Kb7 27.Rg7 Be4 28.Rf7 Nh7 29.f3 (29.gh5?! Kc6=) 29...Bf3 30.g5 Be4 (30...fg5 A pinning theme 31.Rf3) 31.gf6 Nf6 32.Rf6 (32.Rf6 c6 33.Rf4+–) 1–0. Schulz,Hans_Juergen – Hasek,Frantisek, TT–15.19 ETC, 2005.

    6.Nd4 Nge7 7.Nc6 Nc6 8.e3 Be6 9.Bd3 a6 (9...Bd6 10.Qh5 Bf7 11.Qg4=) 10.0-0 Bd6 11.Qh5 Bf7 12.Qg4 g6 13.Qd1 (13.Nd2 Ne5 14.Qh4 Qe7= (14...Nd3 15.Bf6 g5 16.Bg5+–)) 13...Qe7 14.Re1 0-0-0 15.b5 ab5 16.Bb5 Rhg8 (16...Ne5!?=) 17.Bc6+/– bc6 18.Nd2 f5 19.a4 Qh4 (19...Kd7 20.a5+/–) 20.Nf3 Qh5 (20...Qe7 21.a5+/–) 21.a5+– g5 (21...Kd7 22.Ne5 Be5 23.Qh5 gh5 24.Be5+–) 22.Qd3 Be6 23.Ne5 Be5 24.Be5 g4 (24...Kd7 25.a6+–) 25.Reb1 Kd7 26.Rb7 Rc8 27.a6 Rg6 (27...g3 28.Bg3 Qg4+–) 28.a7 (28…g3 29.a8Q Qh2 30.Kf1 Qh1 31.Ke2 Qh5 32.Kd2+–) 1–0. kamret (2160) – andrzej (1925), GameColony.com, 2003.

    5.Nf3 Bd6

    6.Nd4 Ne7

    7.c4 a5

    8.ba5 0-0 9.cd5 Nd5 10.e3 Ra5 11.Nb3 c6 12.Na5 Qa5 13.Qd2 +/–.

    8.ba5 0-0 9.cd5 Nd5 10.e3 c6 11.Nc3 Ra5 12.Nd5 Rd5 13.Bc4 +/–.

    8.ba5 0-0 9.cd5 Nd5 10.e3 c6 11.Nc3 Be5 12.Bc4 Kh8 13.Nd5 cd5 14.Bd3 Qa5 15.Kf1 Bd4 16.Bd4 Nc6 17.Qh5 f5 =.

    8.ba5 0-0 9.cd5 Nd5 10.e3 Nd7!? =+.

    8.cd5 ab4 9.Qb3 ba3 =.

    4.d4 Bd6

    5.Nc3 ed4+= 6.Qd4 Be6 7.Rd1 (7.Qd3 c6+=) 7...Nc6 8.Qd2 (8.Qe3 Be5+=) 8...Nge7+= 9.e4 de4 10.Ne4 Be5 (10...Bd5 11.Nd6 Qd6 12.Qe2=) 11.Be5 Ne5 12.Nc5 (12.Bb5 Kf7=) 12...Qd2= 13.Rd2 Bc8 14.f4 Ng4 (14...N5g6 15.Ne2+=) 15.Bb5 (15.Nf3 b6 16.Na6 Ba6 17.Ba6 Rd8+=) 15...c6 16.Bd3 b6 (16...Nd5 17.Re2 Kf7 18.h3=) 17.Ne4 0-0 (17...Be6 18.c4+=) 18.h3 Ne3 19.Kf2 N3d5 20.Ne2 f5 21.N4c3 Nc3 (21...a5 22.Nd5 Nd5 23.c4+=) 22.Nc3 Re8 23.Bc4 Kf8 24.Ne2 (24.Rhd1 a5+=) 24...Ng6 (24...b5 25.Bb3+=) 25.g3 (25.Rhd1 Be6 26.Be6 Re6+=) 25...b5 (25...Be6 26.Be6 Re6 27.Rd7+=) 26.Bb3 Be6 (26...a5 27.Nd4+=) 27.Nd4 (27.Be6 Re6 28.Rhd1 Ne7+/–) 27...Bb3+= 28.cb3 Ne7 (28...a5 29.Nf5 ab4 30.ab4+/–) 29.Re1 (29.Rc1 a5+/–) 29...Kf7 30.Nf3 (30.Rde2 h6+/–) 30...Nd5 (30...Kf8 31.Ng5 Nd5 32.Nh7 Kg8 33.Re8 Re8 34.Ng5+/–) 31.Ne5+/– Kf8 32.Nd7 (32.Nc6 Nf6 33.Re8 Re8+/–) ½–½. Woelfelschneider,Peter – Nittschalk,Karl, KO–008.1V TSC, 2003.

    5.Nc3 Ne7 6.e4 Be6 (6...ed4!? 7.Nd5 c6 8.Ne7 Qe7 9.Bd4 Qe4 10.Qe2 Qe2 11.Ne2 a5=) 7.ed5 Nd5 8.Nd5 Bd5 9.de5 Be5 10.Be5 fe5 11.Qh5 g6 12.Qe5 Qe7 13.Qe7 Ke7 14.0-0-0 Rd8 15.c4 Be6 16.Rd8 Kd8 17.Nf3 Ke7 18.Bd3 Nc6 (18...a5 19.Ng5 Nc6 20.Re1+– (worse is 20.Ne6 Ke6 21.Re1 Kf6+/–)) 19.Kb2 Rd8 20.Kc3 Rd6 21.c5 Rd5 (21...Rd7+–) 22.Re1 h5 (22...Nd8 23.g4 Kf6 24.Be4+–) 23.Bc4 Kf6 24.h4 b5 (24...Bf7 25.Bd5 Bd5 26.Ng5+–) 25.Re6! (25.Bb5?! Ne5 26.Nd4 Bf5+–) 25...Ke6 Theme: Deflection from g5 26.Ng5 Ke5 27.f4! Kf4 A deflection 28.Bd5 Ne5 (28...Ne7 29.Bb7 c6+–) 29.Ne6 Kg3 30.Nc7 Kh4 (30...Nd7 31.Nb5 a6 32.Nc7+–) 31.Nb5 a6 (31...Kg3 32.Na7 Nd7 33.a4+–) 32.Nc7 g5 (32...Kg3 33.Na6 Kf4 34.b5+–) 33.Na6 Ng4 34.Kd4 Nf2 35.b5 Kg3 36.b6 Kf4 37.b7 h4 38.b8Q Kg4 (38...Kf5 39.Qf8 Kg6 40.Bf7 Kh7 41.Qg8 Kh6 42.Qg6) 39.Qc8 Kg3 40.Qc7 1–0. marekt – Papa Lazarou II, ChessWorld.net, 2004.

    5.c4 a5 6.c5+= Be7 7.Qa4 (7.de5 Nc6+=) 7...c6 (7...Bd7 8.b5=) 8.e3 (8.de5 Be6+=) 8...Nh6 (8...ed4 9.Bd4 Nh6 10.Nd2=) 9.Nf3 (9.de5 Nd7 10.Nf3 fe5 11.Ne5 Ne5 12.Be5 0-0+=) 9...0-0 (9...e4!? 10.Nfd2 0-0=) 10.de5+= fe5 11.Be5 Bg4 12.Qc2 (12.Be2 Nd7 13.Bd4 ab4 14.Qb4 Qa5=) 12...Bf6 13.Qb2 Be5 (13...Bf3 14.gf3 Be5 15.Qe5 ab4 16.ab4 Ra1 17.Qa1=) 14.Ne5 Qf6 15.Nd3 (15.h3 Bf5 16.b5 Nd7=) 15...ab4 (15...Qb2 16.Nb2 ab4 17.f3-/+) 16.Qf6= Rf6 17.h3 Be6 18.g4 Nf7 19.a4 (19.f4 Ra5=) 19...d4 (19...Nd7 20.f4=) 20.ed4+= Na6 (20...Bd5 21.Rg1 Re6 22.Kd2=) 21.Nd2= Rd8 22.f4 (22.Ke2 Re8 23.Kd1 Rd8=) 22...Rd4 23.Kf2 (23.0-0-0 Bd5 24.Rg1 g5=) 23...Rd8 (23...Bd5 24.Ke3 Rd3 25.Bd3 Bh1 26.Ba6 ba6 27.Rh1 Re6 28.Kd3=) 24.Be2 (24.Ne4 Rh6 25.Be2 Bc4+=) 24...Bd5 (24...Nc5 25.Nc5 (25.Nb4?? Rf4 26.Nf3 Rb4–+) 25...Rd2 26.Ke3=) 25.Rhe1 Ng5 26.Rac1 Be4 (26...b3 27.Kg3 Ne4 28.Ne4 Be4 29.Rc3=) 27.Ne4= Ne4 Attacks the isolani on c5 28.Kg1 (28.Kf3 Nc3+=) 28...Ng3 (better is 28...Nc3 29.Kf2 Na4-/+) 29.Kg2?? (better is 29.Kf2 Ne2 30.Ke2 Re6 31.Ne5+=) 29...Ne2–+ 30.Re2 Rd3 31.f5 (31.Rc4 Rc3 32.Re8 Rf8 33.Rc3 bc3–+) 31...b3 32.Re5 (32.Re8 Rf8 33.Re5 Rfd8–+) 32...Rd2 (32...Rd2 33.Kg3 Rc2 34.Rc2 bc2–+) 0–1. Schulz,Hans_Juergen (2230) – Bonetti,Shane (2105), TT–16 ETC, 2005.

    5.c4 dc4!? 6.e3 b5+=.

    5.c4 ed4 6.Nf3 Ne7 7.Nd4 (worse is 7.Qd4 Nbc6 8.Qd3 Bf5-/+) 7...c5 (7...Nbc6 8.cd5 Nd5 9.e4 Nd4 10.Bd4=) 8.bc5 (8.Nb5!?+/–) 8...Bc5= 9.Nc3 dc4 10.e3 Bd4 11.ed4 (11.Qd4!? Be6 12.Qd8 Kd8 13.0-0-0 Kc7 14.Nb5 Kb6 15.Nd6=) 11...Be6+= 12.Qd2 Nbc6 13.Rd1 Bd5 14.Be2 0-0 15.0-0 a6 (15...Nf5 16.Nd5 Qd5 17.Bf3=) 16.a4 b5 17.ab5 ab5 18.Nb5 Bg2 19.Kg2 Qd5 20.Kg1 Qb5 21.d5 Nb4 22.d6 Ned5 23.Qd4 Nb6 24.Rb1 Nd3 (24...Ra2 25.Rfc1=) 25.Bf3+= Rab8 26.Bc3 Qg5 27.Kh1 Qc5 28.Qc5 Nc5 29.Ba5 Nbd7 (29...Ncd7 30.Rb5 Rfc8 31.Rfb1+=) 30.Bd5+/–. Schulz,Hans_Juergen – Hanison,Bernard, b2–b4.com, 2004.

    5.Nd2 Be6 6.e4= c6 7.Ngf3 Nd7 8.Bd3 Ne7 9.0-0 0-0 10.ed5 cd5= 11.c4 e4 12.c5?? Bc7 13.Ne4 de4-/+ 14.Be4 Bd5 15.Qc2 f5-/+ 16.Bd5 Nd5 17.Qc4 N7f6 18.Bc1 Qd7 19.Ne5 Be5 20.de5 Ne8 21.Rd1 Nec7 22.Bf4 Qe6 23.Qc1 Nf4 24.Qf4 Rae8 25.Re1 Nd5 26.Qd4 Rd8 27.Qb2 f4–+ 28.Rad1? f3 29.Rd3?? Qg4 (29...Qg4 30.Rf3 Rf3–+) 0–1. alaamattar (2205) – jrichner (2115), net–chess.com, 2005.

    5.e3 (--> 4.e3 Bd6 5.d4).

    5.e4 de4

    6.de5 Be5 7.Qd8 Kd8 8.Be5 fe5 9.Nc3 Nf6 10.Rd1 Ke7 11.Nge2 c6 (11...Bg4 12.Rd2=+) 12.Ng3 Bg4 13.Be2 Be2 14.Ke2 Nbd7 15.Nf5 Kf7 16.Nd6 Ke6 17.Nb7 Rab8 (17...Rhb8 18.Na5+=) 18.Nd6 a5 19.ba5 Rb2 20.Rd2 (20.Nde4?! Rc2 21.Kd3 Rb2+=) 20...Nc5 21.Nc4 Rb7 22.Rd6 (better is 22.Rhd1+–) 22...Kf5?? (better is 22...Ke7 23.Rhd1 Rc8+–) 23.Rc6 Rd8 24.Rc5 h5 25.Re5 Kg6 26.Ne4 Rc7 27.Ned6 Rcd7 28.Re6 Kh7 29.Rd1 Ng4 30.f3 1–0. orane – Canyonlands, internet live, 2003.

    6.de5 Be7 7.Nc3 Nc6 8.Bb5 Bd7 9.Ne4 Ne5 10.Bd7 Qd7 11.Qd7 Nd7 12.Ne2 0-0-0 13.0-0-0 Ne5 14.Rd8 Bd8 15.Nf4 Nc4 16.Ne6 Nb2 17.Kb2 f5 18.Nd8 fe4?? 19.Nf7+– (19...Nf6 20.Nh8+–) 1–0. Marre – matszewski, zagraj.pl, 2003.

    5.de5 fe5

    6.Nf3+= a5 7.Qd5?? Bb4 8.ab4 Qd5–+.

    6.Nf3+= a5 7.Be5?! Be5 8.Ne5 ab4=.

    6.Nf3 a5 7.Ne5 (7.Qd5?? Bb4 8.ab4 Qd5–+; 7.Be5?! Be5 8.Ne5 ab4= 9.e3 Nf6 10.Qd4=) 7...Nf6 8.b5+= 0-0 9.e3 Be6 10.Nf3+=.

    6.Nf3+= d4 7.c3 dc3 8.Nc3 Nf6 9.Nb5 (9.e4 a5+=) 9...Nc6= 10.e3 Be6 11.Nd6 (11.Ng5 Bg8+=) 11...cd6 (worse is 11...Qd6 12.b5 Nd8 13.Be5+/–) 12.Ng5 Bf5 (12...Bd5 13.Qd3=) 13.Rc1 h6 (13...Rc8 14.b5 Ne7 15.Rc8 Nc8 16.Bc4=) 14.Nf3+= 0-0 15.Bc4 Kh8 16.0-0 a6 17.Bb3 (17.Bd3 Bd3 18.Qd3 Qd7+=) 17...Qe7= 18.Qe2 (18.Nh4 Bh7=) 18...Bg4 19.h3 Bh5 20.e4 Nd7 21.g4 Bf7 22.Bf7 Rf7 23.Rfd1 (23.Rc3 Raf8=) 23...Nf8 (23...Raf8 24.Rd3=) 24.Rd3 (24.g5!?=) 24...Ng6+= 25.Rd2 (25.Rdc3 Nf4 26.Qf1 Raf8+=) 25...Nf4 26.Qf1 Raf8 27.Rc3 Ne6 (27...Qe6 28.Nh4+=) 28.Ne1 (28.Qd1 Ned4 29.Nd4 Nd4+=) 28...Ncd4-/+ 29.Re3 Qg5 30.Red3 Nf4 (30...Rf4 31.Bd4 Nd4 32.Qg2-/+) 31.Bd4 Nd3 (31...ed4 32.Rd4 Qh4 33.Kh2+=) 32.Qd3 ed4 33.Qd4 h5 (33...Re8 34.Ng2-/+) 34.f3 (34.Qd5 Qd5 35.ed5 hg4 36.hg4 Rf4-/+) 34...Qh4-/+ 35.Qe3 Qh3 (35...Qh3 36.Rh2 Qg3 37.Rg2 Qe5 38.gh5 Rf4-/+ (38...Qh5?? 39.Rh2 Qh2 40.Kh2+–)) 0–1. Eulenburg,Michael – Shoup,Karl, corr TT004 BdF, 1996.

    6.Nf3 d4 7.e3 A) 7...Bg4 8.h3 (8.ed4 e4 9.h3 ef3 10.hg4+=) 8...Bf3 9.Qf3 de3 10.fe3+/–; B) 7...de3 8.fe3 Qe7 9.Ne5 Nf6 10.Nc4+=.

    6.Nf3+= Nd7 7.Qd5+/– Ngf6 (7...Qe7 8.Nc3+=) 8.Qe6 Be7 (8...Qe7 9.Qe7 Ke7 10.e3+/–) 9.Ne5+– Nb6?? (better is 9...Rf8+–) 10.Qf7 1–0. kamret (2150) – interesting_move (1705), GameColony.com, 2003.

    6.Nf3+= e4?? 7.Bg7+– ef3 8.Bh8 fe2 9.Be2 Nc6 (9...Nf6 10.0-0 Be6 11.Re1+–) 10.Bh5 Kf8 (10...Ke7+–) 11.Qf3 Ke7 (11...Nf6 12.Bf6 Qd7+–) 12.Qf7 1–0. fajgo – long, internet, 2002.

    6.Nf3 Be6 7.Be5 (7.Ne5 A) 7...Nd7 8.Nf3 (8.Nd7 Qd7 9.e3 Nf6 10.Bd3+=) 8...Ngf6 9.Nc3 Ne5 10.Nd4+=; B) 7...Nh6 8.e4 (8.Nf3 0-0 9.Nc3 c6 10.e4+=) 8...0-0 9.ed5 Qh4 10.Nf3+/–; C) 7...Nf6 8.Nf3 (8.Nd2 0-0 9.e3 a5 10.b5+=; 8.Qd3 Nbd7 9.Nd7 Qd7 10.Bf6=; 8.Qd4 Nbd7 9.Nd7 Qd7 10.e3+=; 8.e3 0-0 9.Be2 a5 10.b5+=) 8...a5 9.b5 0-0 10.e3+=) 7...Be5 (7...Nf6 8.Bd6 Qd6 9.e3 0-0 10.Nc3+=) 8.Ne5 Nd7 (8...Nf6 9.e3 0-0 10.Qd4+=) 9.Nf3 (9.Nd7 Qd7 10.e3+=) 9...Ngf6 10.Nc3 (10.e3+=) 10...Ne4 (10...0-0!?+=) 11.Nd5+/– c6 12.Ne3 Qf6 (12...Qe7 13.Qd4 Ndf6 14.Qe5+/–) 13.Qd4+– Qd4 (13...a5 14.Qf6 (14.Qe4?! Qc3 15.Nd2 Qa1 16.Nd1 Qe5=) 14...gf6 15.Nd4+–) 14.Nd4 Bd5 (14...Nf8 15.f3 Nd6 16.g3+–) 15.c4 (15.f3 Nd6+–) 15...Bf7 16.f3 Nc3 (16...Nef6 17.Nef5 Kf8 18.Nd6+–) 17.Rc1 Na4 18.Nef5 0-0-0 (18...0-0+–) 19.Nd6 (19.Nd6 Kb8 20.Nf7+–) 1–0. Ling,A J (2060) – Hanamitsu,Itsurou (1810), corr ICCF WSTT/3/06/3, 2006.

    6.Nf3 Ne7 A) 7.Be5 0-0 (7...Be5 8.Ne5 Qd6 9.Nf3 Bf5 10.e3+=) 8.Bd6 (8.e3 Bg4 9.Bd6 Qd6 10.Be2+=) 8...Qd6 9.e3 Bf5 10.Nc3+=; B) 7.Ne5 B1) 7...Bf5 8.c4 (8.e3 a5 9.Qh5 g6 10.Qh4+/–) 8...a5 9.b5 c6 10.cd5+/–; B2) 7...0-0 8.e3 (8.Qd4 Rf6 9.e3 Be6 10.Bd3+=) 8...Nd7 9.Nd7 Qd7 10.Nc3+=.

    6.Nf3 Qf6 7.Qd5 A) 7...Nc6 8.Nbd2 (8.Nc3 Nge7 9.Qd3 Bf5 10.Ne4+/–) 8...Bf5 9.Ne4 Qe7 10.b5+/–; B) 7...Ne7 8.Qd3 (8.Qd2 a5 9.Nc3 ab4 10.Ne4+/–; 8.Qe4 Nbc6 9.c4 Bf5 10.Qh4+=) 8...Ng6 9.e3 Nc6 10.Nc3+/–.

    6.Nf3+= Nf6 7.Be5 0-0 8.Bf6+/– Qf6 9.Qd5 Be6 10.Qd4 Qg6 11.Nbd2 a5 12.b5 Nd7 13.e3 Rad8 (13...Nc5 14.Rc1+/–) 14.Bd3 Qf6 (better is 14...Qh5!?+/–) 15.Ne4+– Qd4 16.Nd4 Bd5 17.c4 Be4 18.Be4 Nc5 19.Bd5 Kh8 20.Rd1 Rf6 21.Ke2 Rdf8 22.f4 g5 23.g3 (23.fg5?! Rf2 24.Ke1 Ra2+–) 1–0. Schulz,Hans_Juergen – Michalek,Martin, TT–10. ETC, 2003.

    6.Nf3 Nf6 7.Be5 Be5 8.Ne5 0-0 9.e3 Ne4 10.f3+=.

    6.Nf3+= Nf6 7.Be5 Be5 8.Ne5 Qe7 9.Qd4+=.

    6.Nf3 Nf6 7.Be5 Bg4 8.Bd6 Qd6 9.e3 0-0 10.Be2+=.

    6.Nf3 Nf6 7.Ne5 A) 7...a5 8.b5 0-0 9.e3 Nbd7 10.Nf3+=; B) 7...0-0 8.Nf3 (8.e3 a5 9.b5 Be6 10.Be2+=; 8.Qd3 a5 9.b5 Qe7 10.Nf3=) 8...c6 9.e3 b5 10.a4+=; C) 7...Qe7 8.Nf3 Be6 9.e3 a5 10.b5+=.

    5.de5 Be5

    6.Nc3 Ne7 7.Nf3 Bc3 8.Bc3+= 0-0 9.e3 Bg4 10.Be2 Nd7 11.0-0 Nb6 12.b5 Ng6 13.h3 Bf3 14.Bf3 Ne5 15.a4 Nf3 16.Qf3 Nc4 17.Rfd1 c6 18.e4 Ne5 19.Qe3 Nc4 20.Qc5+/– cb5 21.ab5 Qb6?? 22.Qd5+– (22.Qd5 Kh8 23.Qc4+–) 1–0. Alissa – IsickboyI, ChessWorld.net, 2005.

    6.Be5 fe5

    7.e4 c6 8.Qh5+/– Kf8 9.Qe5 Nf6 10.Nc3 Nbd7 (10...Qe7 11.Qe7 Ke7 12.ed5 cd5 13.Kd2+/–) 11.Qd6 Kf7 (11...Qe7 12.Qe7 Ke7 13.ed5 cd5 14.Nf3+/–) 12.ed5+– Re8 13.Nge2 cd5 14.Nd5 a5? (better is 14...Ne5 15.Qd8 Rd8 16.Nf6 Kf6+–) 15.Nc7 Re6 (15...ab4 16.Na8 Qa5 17.Qb4 Qa8 18.Qb3 Kf8+–) 16.Qe6 (16.Qe6 Kf8 17.Na8+–) 1–0. market (2265) – leavertarern (1930), GameColony.com, 2002.

    7.e4 Nf6

    8.ed5 a5 9.b5 (9.Bb5 Bd7 10.Qe2 0-0=) 9...0-0 (9...Qd5 10.Nc3 Qd4 11.Qd2=) 10.c4 (10.Nc3 a4=) 10...Ng4 (10...Bg4 11.Be2 Bf5 12.Nf3+=) 11.Nh3 Qh4 f2 becomes the focus of attention (11...Nf6 12.Qd3=) 12.g3 (12.Qd2 e4 13.c5 e3-/+) 12...Qf6= 13.Ra2 Bf5 14.Bg2 (14.Re2 Nd7=) 14...Nd7 15.0-0 (15.Re2 Nc5 16.Rd2 e4-/+) 15...Nc5 Black prepares e4 16.Nd2 Qh6 (16...Rae8 17.Qe2=) 17.Nb3 Nb3 (17...Ne3 18.fe3 Qe3 19.Nf2 Nb3 20.d6+/–) 18.Qb3+= e4 (18...a4 19.Qc3=) 19.Re2 Ne5 (19...a4 20.Qc2+=) 20.Nf4 Nd3 21.Nd3 (21.Be4? Nf4 22.Re3 Be4 23.Re4 Qh3–+) 21...ed3 22.Re3 (22.Re7 Qd6 23.Rfe1 d2+/–) 22...Rae8 (22...Rad8 23.Rd1+= (23.Rd3?! Bd3 24.Qd3 Qd6=)) 23.Re8+/– Re8 24.c5 Kh8 25.Qc3 Qh5 (25...a4 26.Qa5 b6 27.Qa4+–) 26.Qd2 (26.d6 cd6 27.cd6 Rd8+/–) 26...Qe2 27.Qe2 Re2 28.Bf3 Re5 29.g4 (29.b6 cb6 30.cb6 Bh3+=) 29...Be4+= 30.Be4 Re4 31.f3 Re5 32.d6 cd6 (32...Rc5?? 33.Re1 g5 34.d7+–) 33.cd6 (33.c6 Rb5 34.c7 Rc5-/+) 33...d2 Black threatens strongly Re1 (33...Rb5?? 34.Re1 g5 35.d7+–) 34.d7 Threatening mate: d8Q 34...Rd5 35.Rd1 Rd7 36.Kf2 Rd3 37.Ke2 Ra3 38.Rd2 Threatening mate: Rd8 38...h5 39.Rd7 Ra2 40.Ke3 b6 41.Rb7 Rh2 (41...h4 42.Rb6 Rh2 43.Ra6+=) 42.gh5+/– Rh5 43.Rb6 Rf5 (43...a4!?+=) 44.Rb8+/– Kh7 45.Kd4 (45.b6 Kg6+/–) 45...a4 (45...Rf3 46.b6=) 46.Kc4 (46.Ke4 Rc5+/–) 46...g5 (46...Rf4 47.Kd5 a3 48.b6 Rf3 49.Ra8=) 47.b6 (47.Ra8 Rf4 48.Kc5 Rf5 49.Kb4 Rf4 50.Ka3 Kg6+=) 47...Rf3 48.Ra8 (48.Kb4!?+=) 48...Rb3= 49.Kc5 g4 (49...a3!?=) 50.Ra4+= g3 51.Rg4 Kh6 52.Kc6 Kh5 53.Rg8 ½–½. Winiger,Albert – Bonetti,Shane, TT–09 ETC, 2003.

    8.ed5 Qd5

    9.Nc3 Qd7 10.Qd7 Bd7 11.Rd1 =.

    9.Nc3 Qe6 10.Nf3 0-0 11.Be2 Nc6 12.Ng5 Qe7 13.Bc4 Kh8 14.Qd3 e4 15.Nge4 Ne5 16.Qe2 Ne4 17.Ne4 Bg4 18.Qf1 Nf3! 19.gf3 Bf3 20.Bd3 Rad8 21.Rg1 Qe5 22.Kd2 Be4 23.Qe2 Qf4 24.Qe3 Bd3 25.cd3 Qf2 26.Qf2 Rf2 27.Ke3 Rh2 28.Rac1 Rd7 29.Rc3 g6 30.Rgc1 Rh3 31.Ke4 Rh4 32.Ke3 Rhd4 33.Rc7 Rd3 34.Kf4 Rc7 35.Rc7 Ra3 36.Rb7 Kg8 37.Kg5 Rg3 38.Kf4 Rb3 39.Kg5 Rg3 40.Kf4=+ Rb3 41.Kg5 a5! 42.Rb8 Kg7 43.Rb7 Kg8 44.Rb8 ½–½. Doornbos,Erik – Moman,Aaron, IECG, 1999.

    9.Nc3 Qe6 10.Nf3 e4 11.Ng5 Qe5 12.Qd8 Kd8 13.Nf7 Ke7 14.Ne5 Rd8 15.Rd1 Rd1 16.Kd1 Nbd7 17.Nc4 =+. Karna,Esa – Raynolds,Pete, IECG, 1999.

    9.Qd5 Nd5

    10.c4 Nf4 A) 11.Nc3 Bf5 (11...a5 12.b5 Nd7 13.Nf3 0-0 14.0-0-0 Rb8+=; 11...Nc6 12.g3 Nd4 13.Rd1 Nfe6 14.Bd3 a5=) 12.Rd1 Nd7 13.g3 Ne6 14.Bg2 0-0-0=; B) 11.g3 Ne6 12.Nc3 Nd4 13.Nb5 Nb5 14.cb5 a5=.

    10.c4 Nf6 11.Nc3 0-0 (11...a5 12.b5 Be6 13.Nf3 Nbd7 14.Ng5 Ke7=) 12.Nd5 Na6 (12...Nd5 13.cd5 Bf5 14.Rc1 Rc8+=) 13.b5 Nd5 14.cd5 Nc5 15.Rc1 b6 16.Bc4 Kh8 17.Nf3 e4 18.Nd4 Nd3? (better is 18...a6=) 19.Bd3+– ed3 20.Rc7 Bg4 (20...a6 21.Kd2+–) 21.f3 Rac8 (21...Bh5 22.Nc6+–) 22.d6 Bd7 (22...Rc7 23.dc7 Bh5 24.Kd2+–) 23.Kd2 (23.Rd7?! Rc1 24.Kd2 Rh1+–) 23...Rc7 24.dc7 g5 25.Rc1 g4 (25...Kg7 26.Kd3 a6 27.ba6+–) 26.Kd3 gf3 27.gf3 Bc8 28.Ke4 Kg7 29.f4 Kf6 30.Rc6 Ke7 31.Ke5 Bb7 (31...Re8 32.f5+–) 32.Re6 Kd7 (32...Kf7 33.Nc6 Rc8 34.Nd8 Kf8 35.Kd6+–) 33.Rd6 Kc7 (33...Ke8 34.Nf5 Rf5 35.Kf5+–) 34.Ne6 (34.Ne6 Kc8 35.Nf8+–) 1–0. mtrh – opanak, internet, 2002.

    10.Bc4 c6 11.Nf3 Nd7 (11...Nf4 12.g3 Ng6 13.Bd3 0-0 14.Ng5 b5+=) 12.0-0 a5 13.b5 N5b6 14.Bd3 cb5+=.

    10.Nd2 A) 10...a5 A1) 11.Bc4 Nc3 (11...c6 12.b5 Nc3 13.Bd3 Be6 14.Ngf3 Bd5=; 11...Nf4 12.g3 Ng6 13.b5 Bf5 14.0-0-0 Nd7=; 11...Be6 12.b5 Ke7 13.Ngf3 Nd7 14.0-0-0 Rad8+=) 12.ba5 Nc6 13.Ne2 Ne2 14.Be2 Ra5=; A2) 11.c4 Nf4 (11...Nf6 12.b5 Be6 13.0-0-0 Nbd7 14.Re1 0-0=) 12.b5 Bf5 13.0-0-0 Nd7 14.g3 Ne6=; A3) 11.b5 Bf5 12.0-0-0 Nd7 13.Ngf3 0-0-0 14.Re1 Rhe8+=; B) 10...Be6 11.Ngf3 Nd7 12.c4 N5f6 13.Bd3 Ke7 14.Ke2 a5+=; C) 10...Bf5 C1) 11.c4 Nf6 12.c5 Nbd7 13.Ngf3 a5 14.b5 Nc5=; C2) 11.0-0-0 Nd7 (11...a5 12.Nc4 Nc3 13.Re1 Ne4 14.Na5 Nd7+=) 12.Bc4 c6 13.Ne2 Rf8 14.b5 0-0-0=; C3) 11.Ngf3 Nd7 (11...Bc2 12.Ne5 a5 13.Bc4 Nf4 14.g3 Ng6+=) 12.c4 N5f6 13.Nh4 Be6 14.Bd3 a5=.

    10.Bd3 A) 10...Nd7 A1) 11.Nd2 Nf4 (11...a5 12.b5 Nf4 13.Bf1 b6 14.Ne2 Bb7=) 12.Be4 Nf6 13.g3 Ne4 14.Ne4 Ng6=; A2) 11.Ne2 a5 12.b5 Nc5 13.Nd2 Bg4 14.f3 Nd3=; A3) 11.Nf3 a5 (11...Nf4 12.0-0 Nd3 13.cd3 0-0 14.Nbd2 b6+=) 12.b5 Nf4 13.0-0 Ke7 14.Nbd2 Kf6+=; B) 10...a5 11.b5 Be6 (11...Nd7 12.Nf3 Nf4 13.0-0 Ke7 14.Nbd2 Kf6+=) 12.Nf3 Nd7 13.0-0 0-0-0 14.Re1 Nf4=.

    4.d4 e4

    5.Bc1 Be6 6.b5 Bd6 7.f3 c6 8.Nc3 f5 9.Rb1? (better is 9.Nh3!?-/+) 9...Qh4–+ 10.g3 Bg3! 11.Kd2? (11.hg3 Exploits the pin 11...Qh1) 11...Bf4 12.e3 Qf2 13.Be2 (13.Nce2 Be3 14.Kc3–+) 13...Be3 0–1. Wloka,Frank – Rohde,Marc (1860), remoteschach.de, 2004.

    5.c4= a5 6.Qa4 c6 7.b5=.

    5.c4= e3 6.fe3 (6.cd5 Qd5 7.fe3 Bd6=) 6...f5 (6...dc4 7.e4 Bg4 8.Nf3=) 7.cd5 Nf6 8.Nc3 (8.Qa4 Bd7 9.Qb3 Bd6+=) 8...Nd5= 9.Qd3 Bb4? (better is 9...a5 10.b5 Nc3 11.Bc3 Bd6=) 10.ab4+– Nb4 11.Qb5 (11.Qb5 N8c6 12.Rc1+–; 11.Qd2 Be6+–) 1–0. Schulz,Hans_Juergen – Alvarez Villar,Nelson, TT–16.29 ETC, 2005.

    5.e3 b6 6.c4 c6 7.cd5 cd5 8.Ne2 Bb7 9.Nec3 Nh6 10.Be2 Be7 11.Bh5 g6 12.Be2 0-0 13.Nd2 Nd7 14.0-0 f5+= 15.h3 Nf6 16.Nb5 a6 17.Nc3 b5 18.a4 ba4= 19.Na4 Rc8?? 20.Nc5+– Qb6 21.Bc3 Rfd8? 22.Ba6 Ba6+/– 23.Ra6 Qb5 24.Qa1 Bc5 25.bc5 Qd3?? 26.Nb3 Rb8?? 27.Na5 Qa6–+ 28.c6 Rdc8 29.Nb7 Qa1 30.Ra1 Rc6 31.Nc5 Rc7 32.Ba5 Rcc8 33.Nd7 Nd7 34.Kh2 Ra8 35.Ra4 Nb6! 36.Rb4 Ra5 37.Rb6 Ra2 38.Kg3 Rcc2 39.Kf4 Rf2 40.Ke5 Nf7 41.Kf6 Ra8 42.Rb7 Rf8 43.Ke6 f4 44.Kd5 fe3 45.Ke4 e2 46.Rb1 Rf1 47.Rf1 0–1. badboy1221 – miingo, caissa.com, 2006.

    5.e3 Nc6 6.b5 Na5 7.Bc3 c6 8.Ba5 (8.Qd2 Nc4 9.Bc4 dc4 10.bc6 bc6+=) 8...Qa5+= 9.Qd2 Qd2 10.Nd2 Bd6 11.c4 Ne7 12.c5 Bc7 13.bc6 bc6 14.a4 (14.Rb1 Rb8=) 14...Rb8+= 15.Ne2 (15.Rb1!?+=) 15...Ba5-/+ 16.Nc1?? (16.Ng3 Rb2 17.Rd1 Ra2-/+) 16...0-0 (16...Rb2 17.Ncb3 Rb3 18.h3–+) 17.Ncb3?? (better is 17.Kd1+=) 17...Rb4 (17...Rb3 18.Be2–+) 18.Be2?? (18.Na5 Be6+–) 18...Nf5 (better is 18...Rb3 19.Kd1 Rb2–+) 19.0-0 (better is 19.Na5 Ne7 20.Nab3+–) 19...Bc7= 20.a5 Bd7 21.Ba6 Rfb8 22.Rfb1 Ne7 23.Rb2 (23.Ra2 Bg4=) 23...f5+= 24.Ra3 f4 25.Nb1 (25.g3!? g5 26.Be2-/+) 25...Nf5–+ 26.Nc3? (better is 26.g4 Nh4 27.h3–+) 26...fe3 27.g4 (27.Ne2–+) 27...ef2 (27...Nd4 28.Nd4 Rb2 29.fe3 Bh2 30.Kh1–+) 28.Kf2 (28.Rf2 Rb3 29.Rb3 Rb3 30.Nd5 cd5 31.gf5 Ba5–+) 28...Nd4 29.Na2 (29.Nd4 Rb2 30.Nce2 Bh2 31.Ke3–+) 29...Rb3 30.Rab3 Rb3 31.Rb3 Nb3 (31...Nb3 32.h3 Nc5–+) 0–1. b4_player (1865) – opt (1830), GameColony.com, 2002.

    5.e3 Be6 (--> 4.e3 Be6 5.d4 e4).

    5.e3 Ne7 6.c4 c6 7.Nc3 Be6 8.cd5 cd5 9.Bb5 (9.Nge2 Ng6+=) 9...Nbc6+= 10.Nge2 a6 (10...Ng6 11.Ba4+=) 11.Ba4 (11.Nf4 Bf7 12.Be2 Ng6+/–) 11...Ng6+= 12.h4 f5 (better is 12...h5!?+=) 13.h5+/– Nge7 14.Nf4 Bf7 15.Bb3 Rg8 16.g3 (16.Rc1!? g5 17.hg6 hg6+–) 16...g5+/– 17.hg6 hg6 18.Rc1 (18.f3 g5 19.Nh5 Bh5 20.Rh5 Qd6 21.fe4 Qg3 22.Kd2 f4+–) 18...g5 19.Nfe2 Ng6 (19...Bg7 20.Kf1+=) 20.b5 ab5 21.Nb5 Qb6 22.Nec3 Rd8 (22...0-0-0 23.Qe2 Kb8 24.Rh7+/–) 23.Qe2 Rd7 24.Na4 Qd8 25.Nc5 Bc5 26.Rc5 Qe7 27.Nc3 Nge5 28.Nd5 (worse is 28.de5 Qc5 29.Na4 Qa7+=) 28...Nf3 (28...Nd3 29.Qd3! Rd5 30.Qb5 Rc5 31.dc5 Bb3 32.Qb3+–) 29.Qf3! Rd5 (29...ef3 30.Ne7 Combination) 30.Qd1 Qc5 31.dc5 Rd1 32.Bd1 Ke7 33.Rh7 Rc8 (33...g4 34.Bb3 Nd8 35.Bc3+–) 34.Bc3 (34.g4 fg4 35.Bg4 Ra8+–) 34...Nd8 35.Bb3 (better is 35.g4 fg4 36.Bg4+–) 35...Ne6?? (35...b6 36.Bc4+–) 36.Bd5 (better is 36.Bb4 Rc7 37.Rh6+–) 36...b6 37.Bb7 Rc7 38.c6 Kd6 39.Kd2 (39.Rh8 Nc5 40.Bb4 Be6+–) 39...g4? (better is 39...Nd8+/–) 40.Bb4+– Kd5?? (40...Ke5 41.Rh8 Bg6+–) 41.Kc3 (41.Rf7 Ke5 (41...Rf7 42.c7 Ke5 43.c8Q Nc7 44.Qd8 Rd7 45.Qd7 Kf6 46.Qc7 Kg6 47.Bf8 Kg5 48.Qg7 Kh5 49.Qh6) 42.Bc3 Kd6 43.Rf5 Rc6 44.Be5 Kd7 45.Rf7 Ke8+–) 41...Nc5?? (better is 41...Nd8 42.Ba6 Ke5+=) 42.Bc5 (better is 42.Rf7 Rf7 43.c7 Nb7 44.c8Q+–) 42...Kc5 43.a4 Re7 (43...Kd6 44.Kb4 Be8 45.Rh6 Ke5 46.a5 ba5 47.Ka5 Bc6 48.Bc6 (48.Rc6?! Rb7 49.Rc5 Kf6=) 48...Ra7 49.Kb4+–) 44.Ba6 Kd6 (44...Kc6?? 45.Bc4 Bc4 46.Re7+–) 45.Bb5 (45.Kb4 Kc6 46.Bc4 Bc4 47.Re7 Ba6+–) 45...Rc7?! (45...Bd5 46.Rh5 Be6+–) 46.Kd4 Re7 47.Rg7 (better is 47.Rh8 Bg6 48.Rb8+–) 47...Rc7 48.Rh7 Re7 49.Rh8 Be6 50.Rb8 Rh7 (50...Ra7 51.Rd8 (worse is 51.Rb6 Bc8 52.c7 Kc7+–) 51...Ke7 52.Rh8+–) 51.Rb6 Bc8 52.Rb8 Kc7 (52...Be6 53.a5 Rh1 54.a6+–) 53.Ra8 Rh2 (53...Rh1 54.Bc4 Rd1 55.Ke5 Rh1+–) 54.Kc5 Rf2 (54...Rh5 55.Ra7 Kd8+–) 55.Ra7 Kd8 56.Rh7 Rc2 57.Kb6 White plans c7 57...Be6 58.c7 1–0. Lin Naing Oo – May Hsu Lwin (2055), Zaw Win Lay Myanmar Open, 2014.

    5.e3 Bf5 6.c4 c6 7.Nc3 Bd6 (7...Ne7 8.Nge2+=) 8.Qb3 Ne7 9.Nge2 (9.Rc1 Qd7=) 9...Be6 (9...dc4!? 10.Qc2 b5=) 10.c5+/– Bc7 11.Ng3 (11.Ne4 0-0+/–) 11...Nd7 (11...f5 12.b5=) 12.Be2 (12.Nce4 0-0+/–) 12...0-0 (12...f5 13.0-0=) 13.b5 (13.Nce4 Ng6+=) 13...Rb8 (13...f5 14.0-0=) 14.a4 (14.Nge4 Ng6+/–) 14...a6 (14...f5!?=) 15.b6 (better is 15.Nge4!? ab5 16.ab5+/–) 15...Bg3+= 16.hg3 Ng6? (16...f5 17.Qc2+=) 17.a5 (better is 17.Ne4!? f5 18.Nd6+–) 17...Re8 18.Bh5 Ndf8 19.0-0-0 Qd7 20.Ne2 Bg4 21.Bg4 Qg4 22.Nf4 Nf4 23.gf4 Ne6 24.Rdg1 f5 25.Bc3 Rf8 26.Bd2 Rf6 27.Qd1 (27...Qd1 28.Kd1=). slavisa3 – drasko5, Live Game Caissa's Web, 2004.

    5.f3 e3 6.Bc1 Qe7 7.Qd3 Nc6 8.Qe3 Qe3 9.Be3 Bf5 10.Ra2 0-0-0 11.g4 Bd7 12.c3 Re8 13.Bh3?? Re3–+ 14.Rc2 Bd6 15.g5 fg5 16.Bd7 Kd7 17.Nh3 h6 18.Kf2 Re8 19.e3 Nf6 20.c4 Ne7 21.c5 g4 22.Nf4?? Nf5 23.fg4?? Ng4 24.Kf3 Nge3 25.Re2 Bf4 26.Kf4 Re4 27.Kf3 Nh4 28.Kg3 Nef5 29.Kf2 Rf4 30.Ke1 Nf3 31.Kd1 Rd4 32.Rd2 Ne3 33.Ke2 Nd2 34.Nd2 Nc2 35.Kd1 Na3 36.Ke2 Rb4 37.Rc1 Re8 38.Kf3 Kc6 39.Rc3 Nb5 40.Rc1 Rf8 41.Kg2 Rb2 42.Rd1 Kc5 43.Kg3 Re8 44.Rc1 Kb6 45.Nf3 d4 46.Ne1 Re3 47.Kf4 Rf2 48.Kg4 Rh2 49.Nf3 Rg2 50.Kh3 Rf2 51.Re1 Ref3 (51...Ref3 52.Kg4 c5–+) 0–1. xCalvin – boldeagle, ChessWorld.net, 2005.

    5.f3 f5 6.fe4 fe4 7.e3 Bd6 8.Be2? (better is 8.Nh3!?=+) 8...Qh4–+ 9.g3 (9.Kd2 Ne7–+) 9...Bg3! 10.Kd2 (10.hg3 Qh1) 10...Bd6 (10...Bh2?! 11.Bb5 c6 12.Qe2-/+) 11.Nc3 c6 12.b5 Be6 (12...Bh2?! 13.Bh5 g6 14.Qe2 Qh5 15.Qh5 gh5 16.Rh2-/+) 13.bc6 Nc6 14.Nb5 Bb8 15.Bh5 g6 16.Be2 a6 17.Nc3 Bc7 18.Qf1 (18.Na4 Nge7 (< 18...Bh2 19.Nc5 Bf5 20.c4–+) 19.Nc5 Bc8–+) 18...Nge7 19.Qg2 0-0 20.Bd1 (20.Rf1–+) 20...Rf2 21.Qf2 Qf2 22.Nge2 Bh2 23.Na4 Rf8 24.Nc5 Bc8 25.c4 b6 26.cd5 Nd5 27.Ne4 Qe3 28.Ke1 Bf4 (29.Rg1 Qe4–+; better is 28...Nf4 29.Bb3 Qb3 30.Rh2 Nd3 31.Kd2 Qb2 32.Ke3–+) 0–1. lookingbeyonde4 – procyk, Live Game Caissa's Web, 2004.

    5.c4 dc4=+

    6.e3 b5? 7.Qh5+– Ke7 8.Qb5 Be6 9.Bc4 Qd6 10.d5 Bd7 (10...Bc8 11.Nd2 Ba6+–) 11.Qb7 Bc6 (11...Na6 12.Qa8 Nb4 13.ab4 Qb4 14.Nd2 Qb2 15.Rb1+–) 12.dc6 Qc6 13.Bd5 Qc2 14.Bd4 Nd7 (14...Qc1 15.Ke2 Qc2 16.Nd2 f5+–) 15.Bc5! Nc5 (15...Qc5 16.bc5) 16.Qc7 Nd7 17.Qc2 (17...Re8 18.Qe4 Kd8 19.Qd4+–) 1–0. kamret (2200) – auto321 (1630), GameColony.com, 2003.

    6.e3 b5 7.Qh5+/– g6 8.Qb5 c6 9.Qa4 Bd7 10.Bc4 c5 11.Qb3 Nh6 12.dc5 Nc6 13.Nc3 Bf5 14.Rd1 (14.Rd1 Qc7 15.Nd5+–) 1–0. WALKER – MOLENAAR, ECC3.045, 2003.

    6.e3 Nd7 7.Bc4 Nb6 8.Bb3 (8.Bg8 Rg8 9.Qh5 g6 10.Qh7 Be6=) 8...f5 (8...a5 9.Bg8 Rg8 10.Qh5 g6 11.Qh7=) 9.Nc3 (9.Nh3 Nf6+=) 9...Bd6 (9...Qg5 10.g3=) 10.Nb5 Nf6 11.d5 a5 12.Ne2 (12.Qd2 a4 13.Ba2 Qd7 14.Nd6 Qd6 15.Bf6 gf6+=) 12...ab4=+ 13.Qc1 (13.a4 Ra5=+) 13...Nbd5 (13...ba3 14.Nd6 cd6 15.Ra3 Ra3 16.Bf6 Qf6 17.Qa3-/+) 14.0-0 (14.Bf6 Nf6 15.Qc4 Rf8 16.Nd6 cd6 17.Qb4 Qa5-/+) 14...c6 (14...ba3 15.Bf6 Nf6-/+ (worse 15...gf6 16.Bd5 Ra5 17.Qc4+-)) 15.Nd6=+ Qd6 16.ab4 Ra1 17.Qa1 0-0 (17...Nb4 18.Rd1 Nd3 19.Nf4=+) 18.b5 (18.Nf4 Be6 19.Rd1 Bf7= (worse 19...Qb4 20.Ne6 Qb3 21.Nf8 Kf8 22.Rb1+/-)) 18...Be6=+ (18...cb5? 19.Rd1+-) 19.Rd1 Qc7 (19...Bf7 20.Ba3 c5 21.Nf4+=) 20.Rc1 (20.Bf6 Rf6 21.Nd4 Kf7+=) 20...Bf7 (20...Ng4 21.g3 f4 22.Bd5 Bd5 23.Nf4=+) 21.h3 (21.Bf6 Nf6 22.Bf7 Qf7 23.bc6 bc6 24.Rc6 Qd7=) 21...Qd7=+ 22.Bd5 Bd5 (worse 22...cd5 23.Bf6 gf6 24.Qf6 Qb5 25.Nd4+/-) 23.Nf4 Qf7 (23...Ne8 24.Qa7=+) 24.Qa7 Rd8 (24...cb5 25.Bf6 gf6 26.Qc5=) 25.Bf6 gf6 26.Rb1 (26.Qb6 Rd7=) 26...Rd7 27.bc6 bc6 28.Qa8 Kg7 29.Qc8 Kh6 30.Ra1 Kg5 31.Ra5 Kh6 32.Ra8 Qe7 33.g3 Kg5 34.Kg2 Kh6 35.Kh2 Qd6 36.Qe8 (36.Rb8 Bc4=) 36...Bf7 37.Qh8 Qe7 38.Ng2 (38.Rc8 Rd6=) 38...Bc4 (38...c5 39.Nh4 Be6 40.Re8+/-) 39.Nh4 (39.Rc8 Bd5=) 39...Kg5=+ 40.Qb8 Qd6 41.Qc8 (41.Qh8 Qe6=) 41...Qe6 (41...c5 42.Qh8 Qe7 43.Re8=) 42.Ng2 (42.Qb8 Qd6 43.Qc8 Bd5=) 42...Qe7 43.Nf4 (worse 43.Qc6 Bd5 44.Qa6 Ba8 45.Qa8 Qd8-/+) 43...Bd5 (43...c5 44.Ra3=) 44.Rb8 Kh6 45.Kg2 Qg7 46.Qe8 Qf7 47.Qc8 Qg7 ½-½. goodfella1201 (2490) - marekt (2355), gameknot.com, 2022.

    6.e3 f5 =.

    5.c4 c6

    6.Nc3 a5 7.b5+= dc4 8.e3 Bf5 (8...f5!?+=) 9.Bc4+/– Ne7 10.bc6 bc6 (10...Nbc6!? 11.Qb3 Bg6+–) 11.Qc2 Nd5 12.Ne4 Bg6 13.Nf3 Qe7 (13...Nd7 14.0-0+–) 14.Bd3 Nd7 15.Qc6 N5b6 16.Rc1 f5 (16...Be4 17.Qe4 Qe4 18.Be4 Rb8+–) 17.Nc5 Rc8 (17...Qf6 18.Bb5 Bc5 19.Qc5+– (< 19.dc5 Qb2 20.cb6 0-0+–)) 18.Qb5 f4 (18...Nd5 19.Ne5 N5b6 20.0-0 Rc5 21.dc5+–) 19.Bg6 hg6 20.0-0 fe3 (20...Rb8 21.Na6 Rb7 22.Rfe1+–) 21.Nd7 Qd7 22.Qb6 Rc1 23.Bc1 (23…Bd6 24.fe3+–) 1–0. marre (2065) – SDR84 (1970), GameColony.com, 2003.

    6.Nc3 f5 7.cd5 cd5 8.Bc1 =.

    6.c5 Be6 7.Bc1 f5 8.g3 (8.Nh3 Be7=) 8...Nf6 (8...a5 9.ba5 Qa5 10.Bd2=) 9.Bg5 (9.Nh3 Bd7=) 9...Be7 10.e3 Nbd7 11.Bf6 Bf6 (worse 11...gf6 12.Qh5 Bf7 13.Qf5+=; 11...Nf6?! 12.Ne2=+) 12.Ne2 b6 13.h4 (13.Nd2 0-0=+) 13...bc5-/+ 14.bc5 Nc5 15.Nbc3?? (better 15.Nf4 Bd7 16.Qc2 Qa5 17.Nd2-/+) 15...Nd3–+ 16.Kd2 0-0 (better 16...Nf2 17.Qe1 Nh1–+) 17.Qa4 (17.Rh2 c5–+) 17...c5 18.Rh2 cd4 (18...Qe7!? 19.Rb1–+) 19.Nd4 Bd4 (19...Nc5!? 20.Qb4 Rc8 21.Rb1–+) 20.Qd4-/+ Qb6 (better 20...Nb2-/+) 21.Bd3?? (21.Qb6 ab6 22.Bd3 ed3 23.Kd3 Ra5=) 21...Qd4 (better 21...Qb2 22.Bc2 Qa1–+) 22.ed4= ed3 23.Kd3 (23.Re1 Rfe8=) 23...Rac8 (23...f4 24.g4=) 24.f4 Bd7 (24...Rb8 25.Re2 Kf7 26.a4=) 25.Nd5+= Bb5 26.Kd2 Rcd8 27.Nb4 (better 27.Ne7 Kf7 28.Nf5+=) 27...Rd4=+ 28.Kc3 Rfd8 29.Rc1 (29.Re1 a5 30.Nc2 Rd3 31.Kb2 Rg3-/+) 29...a5 30.Nc2 (30.Na2 Rd3 31.Kb2 Rg3-/+) 30...Rc4 (better 30...Rd3!? 31.Kb2 Rg3–+) 31.Kb2-/+ Rdc8 (31...Ba4 32.h5-/+) 32.Rd2 (32.Rb1 Rc3 33.Nd4 Bd3-/+) 32...Ba4-/+ 33.Re2 (better 33.h5-/+) 33...Bc2 (better 33...Rb8!? 34.Ka2 Rc3-/+) 34.Rec2= Rc2 35.Rc2 Rc2? (better 35...Rb8!? 36.Ka2 g6=) 36.Kc2+– Kf7 37.Kc3?? (37.h5 Ke6 38.Kb3 Kd5+–) 37...h6?? (37...Kg6 38.Kd3 Kh5-/+) 38.Kc4 g5 (38...Ke6+–) 39.hg5 (39.fg5?! hg5 40.h5 Kg7=) 39...hg5 40.Kb5 (40.fg5?! a4=) 40...gf4 41.gf4 Ke6 42.Ka5 Kd5 43.Kb4 Ke4 44.a4 Kf4 45.a5 Ke3 46.a6 f4 47.a7 f3 48.a8Q f2 49.Qa6 Kf3 50.Qf1 Ke3 51.Kc3 Kf3 52.Kd3 Kg3 (52...Kg4 53.Qf2 Kg5 54.Qf7 Kh6 55.Ke4 Kg5 56.Qg7 Kh5 57.Kf5 Kh4 58.Qg4) 53.Ke3 Kh2 (53...Kg4 54.Qf2 Kg5 55.Qf7 Kh6 56.Ke4 Kg5 57.Qg7 Kh5 58.Kf5 Kh4 59.Qg4) 54.Qf2 Kh1 55.Qe2 Kg1 56.Kf3 Kh1 57.Qg2 1–0. BeepBeepImAJeep (2580) – kingston_1972 (2575), lichess.org, 2015.

    6.cd5 cd5 7.e3 Bd6 8.Nc3 Be6 9.Bb5 Nc6 10.Rc1 Nge7 11.Nge2 0-0 12.0-0 f5 13.Kh1 g5 14.f3 Ng6 15.fe4+= fe4 16.Rf8 Qf8 17.Bc6 bc6=+ 18.Na4 Qh6 19.h3?? Rc8?? 20.Qf1?? Nh4 21.Nc5? Bf5?? 22.Qf2?? Rf8–+ 23.Rf1? Bh3!! 24.Qg1 Bg2 25.Qg2 Ng2 26.Kg2 Qh2# 0–1. revbodio – procyk, Live Game Caissa's Web, 2005.

    6.e3 a6 7.Nc3 Be6 8.Nge2 Nh6 (8...Bd6 9.c5 Bc7 10.Nf4 Bf4 11.ef4=) 9.cd5+= cd5 10.Qb3 g5 (better is 10...Bf7!?+=) 11.Ne4!+– de4 (better is 11...b6+–) 12.Qe6 Qe7 13.d5 Bg7 14.Qe7 Ke7 15.Ng3 Rd8 16.Rd1 a5 17.Ne4 ab4 (17...Nf7 18.Ng3+–) 18.d6 Kf7 19.ab4 Nc6 (19...Nd7 20.Bc4 Kf8 21.Nc5 Nc5 22.bc5+–) 20.Bc4 Kg6 21.b5 Ne5 22.Be5 fe5 23.Bd3 (23...Bf8 24.Nc5 Kg7 25.Ne6 (< 25.Nb7 Rd7+–) 25...Kh8 26.Nd8 Rd8 27.Be4+–) 1–0. mrkt (2250) – benhawkes (1840), ICC, 2003.

    6.e3 Bd6 (--> 4.e3 Bd6 5.d4 e4 6.c4 c6).

    6.e3 f5 7.cd5 cd5 8.Nc3 Nf6 9.Nge2 Bd6 10.Nb5 0-0 11.Rc1 Nc6 12.Nd6 Qd6 13.Qc2 Be6 14.Nf4 Rac8 (14...Rfc8 15.Qd2=) 15.Qc5+= (worse is 15.Ne6 Qe6 16.Qd2 a6=) 15...Qc5 16.dc5 Bf7 17.Be2 Nd7 18.Rg1 Nce5 (18...Rc7 19.Rd1+/–) 19.Rd1+– g5 20.Nd5 Bd5 (better is 20...Rfe8+–) 21.Rd5 Rfe8 22.f4 ef3 (22...gf4 23.ef4 Nd3 24.Bd3 ed3 25.Kd2 Rcd8+–) 23.gf3 h6 (23...Rc7 24.Rg5 Kf8 25.Rf5 Nf7 26.e4+–) 24.f4 Ng4 (24...Nc5 25.bc5 Ng4 26.Bg4 fg4 27.Bd4+–) 25.Rd7 Ne3 (25...Re3 26.Kd2 Re2 27.Ke2 Re8 28.Kd3 Nf2 29.Kc4 Nh3+–) 26.fg5 h5 27.Rb7 Ng4 (27...a5 28.g6 Nc4 29.Bf6 Re2 30.Ke2 Re8 31.Kf3 Nd2 32.Kf4+–) 28.Ra7 f4 29.Kf1 Nh2 30.Kf2 Ng4 (30...Re2 31.Ke2 Rd8+–) 31.Bg4 hg4 32.Rh1 (32.Rg7 Kf8 33.Rh1 g3 34.Kf3 Re3 35.Kg4 Rc3 36.Bc3 Rc5 37.Rh8) 32...Re3 (32...Re2 33.Ke2 Re8 34.Kf1 Re7 35.Re7 Kf8 36.Bf6 Kg8 37.Rh8) 33.Rh8 1–0. orane3 – jimdand0, internet, 2006.

    5.c4 Be6

    6.cd5 Bd5 7.Nc3 a5 8.b5 +=.

    6.cd5 Bd5 7.Nc3 Bc4 8.Ne4 Qd5 9.Nc3 Qd8 10.g3 Bd6 11.Bg2 c6 12.Nf3 Ne7 13.0-0 0-0 14.Rc1 b5? 15.Re1 Ng6? 16.e3 Nd7? 17.Nd2+– Rc8 18.Nc4 bc4 19.Ne4 Bb8 20.Rc4 f5 21.Nc5 Nc5 22.Rc5 Bd6 23.Rc6 Bc7 24.Re2 f4 25.ef4 Ne7 26.Rce6 Bd6 27.Qb3 Kh8 28.Rc2 Bc7 29.Rc5 Ng6 30.Rd5 Bd6 31.Rdd6 Qc7 32.Bc6 Qf7 33.Qe3 Rc7 34.Be8 Qf5 35.Qe4 Qg4 36.Bg6 hg6 37.Rc6 Rcf7 38.Re8 Qd7 39.Rf8 Rf8 40.Qg6 1–0. wlittle (1640) – rashid (1615), net–chess.com, 2001.

    6.cd5 Bd5 7.Nc3 c6 8.Nd5 cd5 9.e3 Bd6 10.Rc1 Nd7? (better is 10...Ne7+=) 11.Qh5+– Kf8 12.Qd5 Nb6 13.Qe4 Ne7 14.Qe6 Nbd5 15.Bc4 Nb6 (15...Rc8+–) 16.Qf7 1–0. marre (2135) – redisperanza (1625), GameColony.com, 2003.

    6.cd5 Bd5 7.Nc3 Nh6 (7...a5 8.b5+=) 8.e3+= c6 9.Nh3 Bd6 10.Qc2 Nd7 (10...f5 11.Nd5 cd5 12.Bb5 Ke7 13.0-0+=) 11.Nd5 (better is 11.Ne4!? Bc7 12.Nc3+/–) 11...cd5+= 12.Qb3 Nb6 13.Bb5 Ke7 14.Rc1 a6 15.Be2 Nf7 16.f3 Re8 (16...ef3 17.Bf3 Re8 18.0-0+= (18.Bd5? Nd5 19.0-0 Kf8–+)) 17.fe4+/– de4 18.0-0 g6 (18...Qd7 19.Bh5 g6 20.Be2+=) 19.Nf4+/– Bf4 20.Rf4 Kf8 21.Rc5 Kg7 22.d5 Ne5 (22...Nd7 23.Rc2+/–) 23.Re4+– Rc8 24.Rd4 Qd6 25.Rc8 Rc8 26.e4 h5 27.a4 Nbc4?? (better is 27...Qc7+–) 28.Bc4 (28.Rc4?! Rc4 29.Bc4 Ng4+–) 28...Nc4 (28...Ng4 29.g3+–) 29.Rc4 Qb6 (29...Rc4 30.Qc4 Kf7+–) 30.Bd4 Qd8 31.Bf6! Qf6 (31...Kf6 32.Qc3) 32.Rc8 Qa1 33.Kf2 Qd4 34.Qe3 Qb2 (34...Qb2 35.Kf3 Qa1 36.Rc7 Kg8+–; 34...Qe5 35.Qc3 Qc3 36.Rc3+–). market (1905) – Merlijn (1980), GameColony.com, 2002.

    5.e3 a5

    6.ba5 Ra5 7.Bc3 Ra7 8.Bb5 c6 9.Be2+=.

    6.ba5 Ra5 7.c4 Be6 (7...Ne7 8.Nc3=) 8.Bc3 (8.cd5 Qd5 9.Nc3 Qc6+=) 8...Ra7 9.c5 g6 (9...Ne7 10.Ne2=) 10.Bb5 (10.Ne2 Ne7=) 10...Bd7 11.Qb3 (11.Bd7 Nd7 12.Ne2 Ne7=) 11...Bb5 (11...Ne7 12.Bd7 Qd7 13.Ne2=) 12.Qb5 Qd7 13.Qd7 Nd7 14.Ne2 Ne7 (14...b6 15.Nf4 c6 16.cb6 Nb6 17.h4=) 15.0-0 (15.Nd2 Bg7=) 15...Bh6 16.Nd2 (16.Bb4 c6=) 16...0-0 17.Rfb1 Rfa8 18.Rb3 Nc6 19.Rab1 Nd8 (19...b6 20.cb6 Nb6 21.Bb2=) 20.Bb2 f5 21.Nc3 c6 22.Ne2 Bg5 (22...Bf8 23.Nf4=) 23.Bc1 (23.f3 Ne6=) 23...Bf6 (23...Be7 24.f3=) 24.f3 Ra4 (24...Kf7 25.Nf4=) 25.fe4 (25.Kh1 Kf7=) 25...fe4 (worse is 25...de4 26.g4+=) 26.Nc3 (better is 26.Bb2!?=) 26...Rd4-/+ 27.ed4 Bd4 28.Kh1 (28.Kf1 Nc5 29.Ke1 Be5-/+) 28...Nc5 29.Nce4 (29.Ne2 Nb3 30.Nb3 Be5–+) 29...de4–+ 30.Rb4 Nde6 31.Nb3 Nb3 32.R4b3 Nc5 33.Rb4 Rd8 34.Bb2 Bf2 35.Bf6 (35.g3 b5-/+) 35...Rd3 (35...Rd7 36.R4b2 e3 37.g4–+) 36.Be7-/+ b5 37.Bc5 Bc5 38.Re4 Ba3 39.g4 Kg7 (39...b4 40.Re8 Kf7 41.Rh8-/+) 40.g5+= Rd5 41.Re6 Bd6 42.Ra1 (42.Rc1 c5 43.Ra1 Bf8 44.Ra7 Kg8+=) ½–½. Grehl,Siegfried – Kuhlmann,AEJ, corr 3GMMsemi–06, 1998.

    6.ba5 c5 7.Bc3 (7.dc5 Ra5 8.Ne2 Bc5=) 7...Nc6 (7...c4 8.Qh5 g6 9.Qe2=) 8.Bb5 cd4 9.Qd4 Nge7 10.Qb6 Qb6 (10...Qd7 11.Ne2=) 11.ab6+= Bd7 12.a4 Ng6 13.a5 Bc5 14.Ne2 Nge5 15.0-0 (15.Nd4 Nd4 16.Bd4 Bb4 17.Bc3 Bd6+=) 15...Ne7 16.Bd7 Nd7 (16...Kd7 17.Be5 fe5+=) 17.Na3 (better is 17.Nd4!?+/–) 17...Ba3= 18.Ra3 Kf7 (better is 18...Nb6!? 19.Rb3 Nc4=) 19.Rfa1 Rhc8 (19...Ra6 20.Nd4+/–) 20.Nd4 (20.a6 ba6 21.b7 Nc5 22.ba8R Ra8+–) 20...Rab8 (20...Nc6 21.Nc6 Rc6 22.Kf1+=) 21.Bb4 Nc6 22.Bd6 Nd4 (22...Ra8 23.R1a2+/–) 23.ed4 (23.Bb8 Nc2 24.Bd6 Na3 25.Ba3 Ne5+=) 23...Ra8 24.Bc7 Ra6 25.Rb3 Ke6 26.Rb5 (26.Rg3 g6+=) 26...f5 27.h4 g6 28.Kf1 Rca8 29.Ke2 h6 30.Ra3 Nf6 31.Bf4 h5 (31...Rc8 32.Kd2 Rc4 33.c3+=) 32.Rg3 Kf7 (32...Ng4 33.Bd2+/–) 33.Rc5 Rd8 (33...Ke6 34.Rc7 Ra5 35.Rg6+–) 34.Rb3 Ne8 (34...Ke6 35.Be5+/–) 35.Be5 Rd7 36.Rbb5 (36.Rbb5 Ke6 37.c4 dc4 38.Rc4+–) 1–0. Rosner,Dirk – Schirmer,Michael, corr SOK–92–81, 1992.

    6.b5 =.

    5.e3 a6

    6.c4 c6 7.Nc3 Be6 8.cd5 Bd5 9.Be2 Bd6+/– 10.Nh3 Ne7 11.Bh5 g6= 12.Be2 b5 13.Nf4 Bf4+= 14.ef4 Qd6 15.Qd2 Nd7 16.0-0-0 a5 17.Rhg1? Nb6 18.Nd5 Ned5 19.g3? ab4–+ 20.ab4 Qb4 21.Qb4 Nb4 22.Rge1 0-0 23.Bc3 N6d5 24.Bb4-/+ Nb4 25.Kb2 Rfd8 26.g4 f5 27.gf5 gf5-/+ 28.Rg1 Kf7–+ 29.Bh5? Kf6 30.Kb3 Nd5 31.Rc1 Ra6 32.Ra1 Ra1 33.Ra1 0–1. Cocodiabolo – blackcrowman, ChessWorld.net, 2010.

    6.c4 Ne7 7.cd5 (7.Nc3 c6+=) 7...Nd5= 8.Ne2 Bd6 (8...a5 9.Qa4 Nc6 10.b5=) 9.Nec3 Nc3 10.Nc3 Qe7 (10...f5 11.Bc4=) 11.Qh5 g6 12.Qh4 f5 13.Qe7 Be7 (13...Ke7 14.Rc1+=) 14.Nd5+/– Bd6 (14...Bd8 15.Bc4+/–) 15.Nf6 Kf7 (15...Ke7 16.d5 Rd8 17.Nh7+/–) 16.d5 Rd8 17.Nh7 Be7 (17...b5 18.Ng5 Ke7 19.f3 ef3 20.gf3+/–) 18.Bc4+– Rd6 (18...b5 19.Bb3 Bd6 20.Bc3+/–) 19.h4+/– Nd7 (19...b5 20.Bb3 a5 21.ba5+–) 20.Ng5+– Ke8 (20...Kg8 21.Bb3 Bf6 22.Bf6 Nf6 23.Rc1+–) 21.Ne6 Nb6 (21...Bd8 22.h5 gh5 23.Ng7 Kf8 24.Nf5+–) 22.Nc7 Kd7 23.Na8 Nc4 24.Bd4 b5 25.Bc5 Bb7 26.Bd6 Bd6 27.h5 gh5 28.Rh5 Ba8 29.Rf5 Na3 30.0-0-0 (30.Ra3 Decoy theme: a3 30...Bb4 Theme: Double Attack) 30...Nc4 (30...Kc7 31.Rh1 Nc4 32.Rh6+–) 31.Rf7 Kc8 (31...Be7+–) 32.Rh1 (32.Rh1 Bc7 33.Rh8 Bd8 34.Rff8+–) 1–0. Hruschka,Walter (1880) – Bechler,Falk (1900), DESC, 2001.

    5.e3 c6

    6.c4 Bd6 (--> 4.e3 Bd6 5.d4 e4 6.c4 c6).

    6.c4 Be6 (--> 4.e3 Be6 5.d4 e4 6.c4 c6).

    6.c4 f5 7.Nc3 Nf6 8.cd5 cd5 9.Rc1 Nc6 (9...a5 10.Qa4 Bd7 11.b5=) 10.Nh3 Bd6 11.Nf4 Bf4 12.ef4 0-0 13.Be2 Qd6 (13...Ne7 14.Qd2=) 14.Qd2 Bd7 15.0-0 Nd8 16.g3 (16.Rc2 Ne6 17.g3 Rac8+=) 16...Nf7 17.Rc2 Qb6 (17...Rfc8 18.Rfc1=) 18.Rfc1 (18.b5 Rfc8=) ½–½. Zbroja,Ted – Schirmer,Michael, corr 3GMM–F, 2001.

    5.e3 f5

    6.c4 Be6 7.c5 Nf6 8.Nh3 c6 9.Nc3 Be7 10.Nf4 Bf7 11.Qa4 0-0 12.Be2 g5 13.Nh3 h6 14.f4 g4 15.Nf2 Nbd7 16.Rb1 b5 17.Qa6 Qc8 18.Qc8 Rfc8 19.a4 a6 20.Bc1 Rcb8 21.a5 Nh5 22.Bb2 ½–½. Degterev,Pavel (1685) – Stadler,Pavel (1625), CFriend SL–2005–0-00028 email, 2005.

    6.c4 c6

    7.cd5 cd5 8.Nc3 Nf6 9.Rc1 g5 10.h4 g4 11.Nge2 Bh6 12.Nf4 Ke7 13.Be2 a5?? (better is 13...Bf4 14.ef4 a5+=) 14.Ncd5!+– Nd5 (14...Qd5 15.Nd5) 15.Rc8 Qc8 (15...Nf4 16.Rd8 (16.ef4?? Qc8 17.d5 Rg8–+) 16...Ng2 17.Kf1 Ne3 18.fe3 Rd8 19.Qb3+–) 16.Nd5 Kd6 17.Nb6 Qd8 18.Na8 Nd7 19.Qa4 Qa8 20.ba5 Ke7 21.Qb4 Ke8 22.Bb5 Rf8 23.0-0 Qb8 24.Rc1 Rf6 (24...g3 25.Bd7 Kd7 26.Qb5 Ke7 27.Qb6 gf2 28.Kf1+–) 25.d5 Rf7 26.a6 g3 (26...Bf8 27.a7 Qa8+–) 27.a7 (27…gf2 28.Kf1+–) 1–0. Woschkat,Karl_Heinz – Sheers,Matthew Philip, L2.1999.0.00004, 1999.

    7.cd5 cd5 8.Nc3 Nf6 9.Nge2 a5 10.Qa4 Bd7 11.b5 =.

    7.cd5 cd5 8.Nc3 Nf6 9.Nge2 b6 10.Nf4+= Ba6?? (better is 10...Kf7+=) 11.Ba6+– Na6 12.Qa4 Qd7 13.Qa6 (13...Be7 14.Rc1+–) 1–0. market (2175) – Cerati (1940), GameColony.com, 2002.

    7.cd5 cd5 8.Nc3 Nf6 9.Nge2 Bd6!? =.

    7.cd5 cd5 8.Nc3 Nf6 9.Nge2 Be7 10.Nf4 g5 11.Bb5 Nc6 12.Nh5 0-0 13.0-0 Be6 14.Na4 Bf7 15.Nf6 Bf6 16.Nc5 Qe7 17.Bc6 bc6 18.Qa4 Rfc8 19.Rae1 Qd6 20.Qc2 Be7 21.f3 Bg6 22.Rc1 a5 (better is 22...ef3!? 23.Rf3 Rcb8+=) 23.fe4+/– fe4 24.Nb7 Qd7 25.Na5 Ra6 26.Nc4 dc4?? (better is 26...Qe6 27.Ne5 Kg7+/–) 27.Qc4 Qd5 28.Qd5 cd5 29.Rc8 Kg7 30.Rc7 Re6 31.Rd7 h5 32.Rd5 g4 (32...Kh6 33.Rd7 Bf6 34.a4+–) 33.Rd7 Kh6 34.d5 (34…Rd6 35.Re7 Rd5 36.a4+–) 1–0. market (2170) – gigueret (1885), GameColony.com, 2002.

    6.c4 Nf6

    7.Nc3 c6 8.Rc1 (8.cd5 cd5 9.Rc1 a5 10.Qa4 Bd7=) 8...Be6 9.c5 Ng4 (9...Nbd7 10.Nh3=) 10.Nge2 (10.Nh3 Qh4 11.Qe2 Be7=) 10...Qh4 11.g3 Qh6 12.h3 Nf6 (12...Be7 13.Nf4 Bf7 14.b5=) 13.Nf4 (13.b5 Be7=) 13...Bf7 14.b5 Be7 15.Qb3 Nbd7 16.Qa4 Nh5 17.Ng2 g5 18.Rb1 (18.Rb1 Qe6 19.bc6 bc6 20.Na2+=). Degterev,Pavel – Hasek,Frantisek, Telechess, 2005.

    7.Nc3 Be6 8.Qb3 c6 9.Nh3=.

    7.Nc3 Be6 8.Qb3 Be7 9.Nh3 c6 10.Nf4 Bf7 (10...dc4 11.Bc4 Bc4 12.Qc4+=) 11.cd5 cd5 (worse is 11...Nd5 12.Bc4+/–) 12.Bb5 (12.Be2 Nc6=) 12...Nc6 13.Bc6 (13.Qa4 Qd6=) 13...bc6 14.0-0 (14.Qa4 Qd6=) 14...0-0 15.Rfc1 g5 (15...a5 16.Na2=) 16.Nfe2 Bd6 17.Na4 f4 (17...Qc7 18.h3=) 18.Rc6 (18.ef4 gf4 19.Rc6 Be8+=) 18...f3 (18...Be8 19.Rc3 fe3 20.fe3 Bh2 21.Kf1 Nh5 22.Ke1–+) 19.Ng3+= Ng4 (19...Qd7 20.b5 fg2 21.Kg2=) 20.h3 (20.gf3!? Bg3 21.hg3+/– (21.fg3 ef3 22.Rcc1 f2 23.Kg2 Qe7–+; worse is 21.fg4 Bf2 22.Kh1 Be8=)) 20...Bg3+= 21.hg4 (21.fg3 f2 22.Kh1 Be6–+) 21...Qd7 22.fg3 (22.Rf6 Bh2! 23.Kh2 Qg4 24.Rf3 ef3 25.gf3 Qf3 26.Rg1 Qf2 27.Rg2 Qh4 28.Kg1 Qe1 29.Kh2–+) 22...Qc6–+ 23.gf3 Be8?? (better is 23...ef3!? 24.Rf1 Qd6–+) 24.f4 (24.fe4!? Qa4 25.Qd5 Bf7 26.Qg5 Bg6 27.Qd5 Bf7 28.Qg5 Bg6 29.Qd5 Bf7 30.Qg5=) 24...gf4+= 25.gf4 (25.ef4 Qa4 26.Qd5 Bf7 27.Qg5 Bg6 28.Qd5 Bf7 29.Qg5 Bg6 30.Qd5 Bf7=) 25...Qe6 (25...Qd7 26.Kh2 Kh8 27.Rg1+=) 26.Kf2 (26.f5 Ba4 27.Qa4 Qh6-/+) 26...Ba4 27.Qa4 Rac8 (27...Qg4 28.Qb3 Qf3 29.Ke1–+) 28.Rh1 (28.Qb3+=) 28...Qc6?? (28...Qg4 29.Rg1 Rf4 30.ef4 e3 31.Kf1 e2 32.Kf2 Qg1 33.Ke2 Qg2 34.Ke1 Qb2 35.Qd1–+) 29.Qa7 (29.Qc6 Rc6 30.Rc1 Rc1 31.Bc1+=) 29...Rf7-/+ 30.Qa5 (better is 30.Qc5!? Qd7 31.Kg3 Rc5 32.dc5–+) 30...Qc2–+ 31.Kg3 Qe2 32.Rh5?? (32.Rc1 Qe3 33.Kh4 Qf2 34.Kh3–+) 32...Qe3 (32...Qb2 33.Rg5 Kf8 34.Qb6= (34.Rd5?! Qa1 35.Rd8 Rd8 36.Qd8 Kg7 37.Qg5 Kf8 38.Qc5 Kg8=)) 33.Kh4 Qf4 (33...Qf2 34.Kh3 Qb2 35.Qa6 Rc3 36.Kh4 Qf2 37.Kg5 Qf4 38.Kh4 Qf2 39.Kg5 Rg7 40.Kh6 Qf8 41.Qe6 Kh8 42.Rf5 Rh3 43.Rh5 Rg4) 34.Qd5 Qh2 35.Kg5 Qb2 36.Rh7 (36.Rh3–+) 36...Qc1 (36...Qc1 37.Kh4 Qh1 (37...Kh7?! 38.Qf7 Kh8 39.Qf6 Kg8 40.Qe6 Kf8 41.Qf5 Kg7 42.Qe5 Kf7 43.Qf5 Kg7 44.Qe5 Kf7 45.Qf5 Kg7=) 38.Kg5 Qh7–+ (worse is 38...Kh7 39.Qf7 Kh8 40.Qf6 Kg8 41.Qe6 Kf8 42.Qc8 Ke7 43.d5+–); 36...Kh7?? 37.Qf7 Kh8 38.Qf6 Kh7 39.Qf5 Kg7 40.Qd7 Kf8 41.Qc8 Ke7 42.Qc7 Ke6 43.Qc6 Ke7 44.Qe4 Kd8 45.Qd5 Kc8 46.b5 Qd2 47.Kg6+–) 0–1. Arraya,Jorge – Ferreira,Oscar, Panamerican–chT, 1971.

    7.Nc3 Be6 8.c5 Be7 9.Nh3 c6 (9...0-0 10.Be2=) 10.Be2 (10.Nf4 Qd7+=) 10...0-0 11.0-0 (11.Nf4 Bf7+=) 11...Re8 (11...Qc7 12.Nf4 Bd7 13.b5+=) 12.Nf4 Bf7 13.b5 (13.Rb1 Qc7+=) 13...Qc7 (13...cb5 14.Bb5 Nc6 15.Rb1=) 14.a4 (14.Qa4 cb5 15.Qb3 Qd7+=) 14...b6 15.Ba3 bc5 (15...Rd8 16.cb6 ab6 17.Be7 Qe7 18.Rb1+=) 16.Bc5 Bc5 17.dc5 Nbd7 18.Qd4 g5 (18...cb5 19.Bb5 Red8 20.Ncd5 Nd5 21.Nd5 Qc5 22.Rfd1+=) 19.Nh3 h6 20.bc6 (20.Rac1 Ng4 21.g3 Nge5+=) 20...Qc6= 21.Bb5 Qc5 22.Qc5 Nc5 23.Be8 Be8 24.f4 ef3 25.Rf3 Bd7 26.Nf2 a5 (26...Rc8 27.Nb5 g4 A) 28.Na7? Ra8 (28...gf3?! 29.Nc8 Bc8 30.gf3=) 29.Ng4 Ng4–+ (29...fg4?! 30.Rf6 Ra7 31.Rh6=); B) 28.Rf4=) 27.Rc1 (27.Kf1 Rb8=) 27...Na4 (27...Rc8 28.Nb5 Na4 29.Rc8 Bc8 30.Nd6=) 28.Na4 Ba4 29.Rf5 Kg7 30.Nd3 Bb5 31.Ne5 Ra7 32.Rb1 Be8 33.Rb6 Ne4 34.Rb8 (34.Re6 Ba4=) 34...Nd6 35.Rf2 ½–½. Vetter – Alvarez Villar, TT–16 ETC, 2005.

    7.Nc3 Be6 8.cd5 Nd5 9.Nd5 Bd5 10.Ne2=.

    7.cd5 Nd5 8.Nc3 Be6=.

    7.Nh3 a5 8.b5 Nbd7=.

    7.Nh3 c6 8.c5 g6 (8...b6 9.Be2=) 9.Nf4 (9.Be2 Qc7+=) 9...Bh6 10.Be2 0-0 11.h4 Na6 (11...b6 12.a4=) 12.Ba6 ba6 13.Qa4 Qc7 14.Bc1 (14.Nc3 a5=) 14...a5 (14...Rb8 15.Nc3=) 15.Qa5 Qa5 16.ba5 Rb8 17.Nc3 (17.Nd2 Re8=) 17...Ba6 18.Na2 (18.Ne6 Rfc8=) 18...Rfc8 (18...Bf4 19.ef4 Rb3 20.Nb4=) 19.Nb4 Bc4 20.Rb1 (20.Bd2 Bf4 21.ef4 h6=) 20...Kf7 (20...a6 21.Ne2 Rb5 22.Ng3=) 21.Nh3 (21.h5 g5 22.Ne2 Rb5=) 21...Bb5 (21...Kg7 22.Bd2=) 22.Rb2 Bg7 (22...Kg8 23.Nf4=) 23.Nf4 h6 24.a6 Nd7 25.Ne2 (25.Rh3 Rg8=) 25...Bf6 (25...Rf8 26.h5=) 26.h5 g5 27.f3 (27.Rg1 Ke6=) 27...Ke6 (27...ef3 28.gf3 Re8 29.Rc2+=) 28.fe4 fe4 29.Nc3 Bc4 30.Rc2 Be7 (30...Nc5 31.dc5 Bd3 32.Nca2 (32.Nd3? ed3 33.Nd5 cd5–+) 32...Bc2 33.Nc2=) 31.Bd2 (31.Ne4 Rb4 32.ab4 Bd3 33.Ng5 Bg5=) 31...Bd3 (31...Nf6 32.Nd1=) 32.Ra2 (32.Rc1 Bf6=) 32...Bc4 (32...Nf6 33.Ra1=) 33.Rc2= Bd3 (33...g4 34.Kf2=) 34.Ra2 Bc4 (34...Nf6 35.Ra1=) ½–½. Degterev,Pavel – Oltean,Dorel (2360), Telechess, 2005.

    5.e3 Nh6

    6.c4 Be6 7.c5 Be7 8.Nc3 0-0 9.Bb5 c6= 10.Bf1 f5 11.f4 Ng4 12.Qd2 Nd7 13.g3 Rf6 14.b5 Rh6 15.h3 Qe8 16.Bg2 Ngf6 17.Nge2 Qg6 18.Kf2 Nh5 19.h4 Qg4 20.Raf1 Ng3 21.Ng3+= Bh4 22.Nce2 Rg6 23.Rh3+/– Nf6 24.Rfh1 Rh6+/– 25.a4 Kh8 26.Kf1 g5 27.fg5+– Qg5 28.Nf4 Bd7 29.Qe2 Rg8 30.Qd2 cb5 31.ab5+= Bb5 32.Kg1 Ng4 33.Bc1 Bg3= 34.Rg3 Rh1 35.Kh1?? Nf2?? 36.Qf2=+ Qh4 37.Kg1= Rg3 38.Nd5 Rg2 39.Qg2 Qe1= 40.Kh2 Bc4 41.Nf6?? Qh4-/+ 42.Kg1 Qf6 43.d5 Qg6 44.d6-/+ Be6 45.Bb2 Kg8–+ 46.Bd4 Qg2 47.Kg2 Kf7 48.Kg3 a5 49.Kf4 Kg6 50.Ke5 Bd7 51.Kd5 Kf7 52.Ke5 a4 53.Bb2 h5 54.Ba3 h4 55.Kf4 Kg6 56.Bb2 Bc6 57.Ba3 Bd7?? 58.Bb2 Kh5 59.Bf6 a3 60.Be5 a2 61.Bf6 Kg6 62.Bh8 Kf7 63.Bd4 Ke6 64.Bh8 Kd5 65.Bd4 a1Q! 66.Ba1 Kc5 67.Be5 b5 68.Kg5 h3 69.Kh4 b4 70.Kh3 f4 71.Kg2 fe3 72.Kf1 Kd5 73.Bb2 Kd6 74.Ke2 Kd5 75.Ke3 Bb5 76.Bh8 Bd3 77.Bg7 Kc4 78.Kd2 Kb3 79.Bf8 Bf1 80.Ke3 Bg2 81.Kd4 Ka4 82.Kc4?? b3 83.Bg7 Ka3 84.Bc3 Ka2 85.Kd4 b2 86.Bb2 Kb2 87.Ke3 Kc3 88.Ke2 Kd4 89.Kd2 e3 90.Ke2 Ke4 91.Ke1 Kf3 92.Kd1 e2 93.Ke1 Bf1 (93...Bf1 94.Kd2 Kf2 95.Kc3 e1Q 96.Kb3 Bd3 97.Kb2 Qb4 98.Ka2 Bc4 99.Ka1 Qa3 100.Kb1 Bd3#) 0–1. dannyboy238 – jammboy, ChessWorld.net, 2007.

    6.Nd2 g6 7.c4+= Bg4 8.Qb3 c6 9.cd5 Qd5 10.Bc4+– Qg5 11.Ne4 Qf5 12.Bd3 b5 13.Nd6!! Bd6 14.Bf5 (14.Bf5 Nf5 15.f3+–) 1–0. hooks – gummi57, ChessWorld.net, 2005.

    4.e3 a5

    5.b5 b6 6.Nf3 e4 7.Nd4 Bc5 8.d3 Bd4 9.Bd4 ed3 (9...Bf5 10.Nd2+=) 10.Bd3+/– (10.cd3?! c5 11.Bc3 Bf5+=; 10.Qd3?! Ne7+=) 10...Ne7 11.Qh5 Kf8 12.0-0 c6 13.Nd2 (13.Bh7? Bf5 14.Qf5 Nf5 15.Bf5 Qe8–+) 13...cb5 14.Bb5 Bd7 15.Rab1 Bb5 16.Rb5 Nbc6 17.Bb6 Qd7 18.e4 de4 19.Ne4 g6 (19...Qe6 20.Qf3+–) 20.Qf3 f5 21.Qc3 Kf7 22.Ng5 Kg8 23.Qc4 Kg7 24.Qf7 Kh6 25.Qf6 Raf8 (25...Qc7 26.Nf7 Kh5 27.Qg5) 26.Nf7 Rf7 27.Be3 Kh5 (27...f4 28.Bf4) 28.Qg5 1–0. Janek – Damian, internet, 2016.

    5.b5 g6 6.Nf3 e4 7.Nd4 c5 8.bc6 bc6 9.c4 Kf7 10.cd5 cd5 (10...Qd5? 11.Qc2 Qc5 12.Bc4 Kg7 13.Qe4+–) 11.Nc3 Ne7 12.Be2 (12.d3!? ed3 13.Bd3+/–) 12...Nbc6+= 13.Nc6 Nc6 14.0-0 Rb8 15.Rb1 Be6 16.d4 Bh6 17.Qc2 Qd6 18.Nb5 Qd7 19.Rfc1 Rhc8 20.Qd2 Bf8 21.Bc3 Ra8 22.a4 Nb4 23.Qb2 Kg8 24.Bd2 g5 25.Rc8 Rc8 26.Rc1 g4 27.g3 h5 28.Rc8 Qc8 29.Qc3 Nc6 (29...Qc3 30.Bc3 Kf7 31.h3+=) 30.Qc1 Be7 31.Kf1 f5 32.Ke1 Kh8 33.Kd1 h4 34.Ke1 Bd7 35.Kd1 hg3 36.fg3 Kg7 37.Ke1? (better is 37.Qb2!?=) 37...Qh8–+ 38.Kd1 (38.h4!? gh3 39.Kf2–+) 38...Qh2 39.Be1 Qg1 40.Kc2 Bg5 41.Bd2 Qg3 0–1. Fournier,Frederic (1625) – isaba (2415), Active, 2007.

    5.c3 a4 6.d4+= Bf5 (6...Nd7 7.c4 dc4 8.Bc4 ed4 9.Bd4+=) 7.de5 c5 (better 7...fe5 8.c4 dc4 9.Qd8 Kd8 10.Bc4 Bd6+–) 8.Bc4?? (better 8.Bb5 Bd7 9.Bd3+–) 8...Na6?? (8...dc4 9.Qd8 Kd8 10.Nd2–+) 9.f3?? (better 9.Qd5 Qd5 10.Bd5+–) 9...Bd6?? (better 9...dc4 10.Qa4 Bd7–+) 10.ef6 (10.ef6 Nf6 A) worse 11.Qa4 Nd7 12.Ba6 Qh4 13.Kf1 Ra6= (worse 13...ba6 14.Qc6 Qc4 15.Ke1+–); B) 11.Bd5? Nd5 12.e4 Qh4 13.Ke2 Qg5 14.Qd5 Qg2 15.Ke3 Qb2 16.Qd6 Bd7–+; C) 11.Bb5 Bd7 12.Ba4+=; better 10.Qd5 Qd7 11.ed6+–) 1–0. Pierre – Meckong, internet, 2020.

    5.c3 Bd6 6.Nf3 Ne7 7.b5 a4 8.d4 e4 9.Nfd2 c6 10.c4 Nd7 11.c5 Bc7 12.b6 Bb8 13.Nc3 f5 14.Na4 0-0 15.Nc3 f4 16.ef4 Bf4 17.g3 Bh6 18.Ne2 Nf5 19.Nf4 Bf4 20.gf4 Qh4 21.Qb3?? e3–+ 22.0-0-0 ed2 23.Rd2 Nf6 24.f3 Qf4 25.Kb1 Qd2 26.a4 Nd4 27.Bd4 Qd4 28.Bd3 Ra4 29.Rd1 Qa1 30.Kc2 Ra2 (31.Qa2 Qa2 32.Kc1 Qa3 33.Kc2 Qc5 34.Kb3 Ng4–+) 0–1. maxeem – tampaFL, Live Game Caissa's Web, 2004.

    5.c3 Be6 6.d4 Nd7 7.de5 fe5 8.Nf3 Ngf6 9.Nbd2 ab4 10.ab4 Ra1 11.Qa1 Bd6 12.Qa7 Kf8 (better is 12...b6!?+=) 13.Qb7 Nb6 14.Ba6 Qe8 15.c4 Bc8 16.Qa7 Qa4 17.c5 Qa6 18.Qa6 Ba6 19.cb6 cb6 20.Be5 Bb4 21.Kd1 Ke7 22.Kc2 Rc8 23.Kb3 Ba5 ½–½. pierred – aspasio, net–chess.com, 2013.

    5.g3 Nh6 6.c3 ab4 7.cb4 c5 8.bc5= Bc5 9.h3 0-0 10.d4 ed4 11.ed4 Bd6 12.Bg2=+ Be6 13.Nf3 Nc6 14.Nbd2 Qb6 15.Rb1? Qa7 16.Ra1 Nf5 17.Nb3 Rfe8 18.0-0=+ Bc7 19.Re1 Bb6 20.g4 Nd6=+ 21.Re2 Bf7 22.Qd3 Bg6 23.Re8 Re8 24.Re1?? Bd3–+ 25.Re8 Ne8 26.Nc1 (26.Nc1 Bc4 27.Kh2–+). beammeupscotty (2115) – malaysianisme, net–chess.com, 2004.

    5.ba5 Ra5

    6.c4 dc4 7.Bc4 A) 7...Bd6 8.Nf3 (8.Bc3 Ra8 9.d4 ed4 10.Qh5 g6 11.Qd5 Qe7 12.Bd4 c6 13.Qf3+=; 8.Nc3 Nc6 9.Nb5 Nge7 10.Qb3 Nf5 11.d3 Qe7 12.Nf3 Bc5 13.0-0=) 8...Nc6 9.Nc3 Nh6 10.0-0 Bg4 11.h3 Bh5 12.d4 f5 13.Bb5=; B) 7...Nc6 8.Nc3 (8.d3 Nh6 9.Nf3 b5 10.Bb3 Bf5 11.Bc2 Bc5 12.d4 ed4 13.Bf5=; 8.Qb3 Nh6 9.Nc3 Ra8 10.Bb5 Bd7 11.Nf3 Nf5 12.Bd3 Ra7 13.0-0=) 8...Nh6 9.Nf3 Nf5 10.d3 Nd6 11.Bd5 Bd7 12.0-0 Ne7 13.Bb3=.

    6.c4 Nc6 A) 7.Bc3 A1) 7...Ra8 8.d4 (8.cd5 Qd5 9.Bb2 Be6 10.Nf3 Bd6 11.Nc3 Qa5 12.Nb5 Nge7 13.Bc3=; 8.Nf3 d4 9.ed4 ed4 10.Bb2 Bc5 11.Bd3 Qe7 12.Qe2 Bg4 13.Kd1-/+) 8...ed4 9.ed4 Qe7 10.Qe2 Ra4 11.cd5 Nd4 12.Bd4 Rd4 13.Nc3=; A2) 7...Ra7 8.d4 ed4 9.ed4 Qe7 10.Qe2 dc4 11.Qe7 Be7 12.Bc4 Bd6 13.Nf3=; B) 7.Nf3 B1) 7...Be6 8.Qb3 (8.cd5 Bd5 9.Nc3 e4 10.Ng1 Ne5 11.Nd5 Qd5 12.Nh3 Nc4 13.Bc4=) 8...b6 9.d4 ed4 10.Bd4 Bd6 11.Nc3 dc4 12.Bc4 Bc4 13.Qc4=; B2) 7...e4 8.cd5 (8.Nd4 Nd4 9.Bd4 Be6 10.cd5 Bd5 11.d3 ed3 12.Qd3 c5 13.Bc3=; 8.Ng1 d4 9.ed4 Nd4 10.Ne2 Bc5 11.Bc3 Ra8 12.d3 Nc2 13.Qc2=) 8...Rd5 9.Nd4 Nd4 10.Bd4 Rg5 11.Qc2 f5 12.d3 c5 13.Bc5=; B3) 7...dc4 8.Bc4 e4 9.Qb3 Nh6 10.Nd4 Ne5 11.Be2 Nhf7 12.f3 ef3 13.Nf3=; C) 7.Qb3 C1) 7...Nge7 8.Bc3 (8.d4 ed4 9.ed4 Nf5 10.Nf3 dc4 11.Qc4 Qe7 12.Be2 Nd6 13.Qc3+=; 8.Be2 Ra7 9.cd5 Qd5 10.Qd5 Nd5 11.Nc3 Nc3 12.dc3 e4 13.f3+=) 8...Ra7 9.d4 Bg4 10.c5 Ng6 11.Bb5 Be7 12.h3 Be6 13.Nf3=; C2) 7...d4 8.Be2 (8.Bd3 f5 9.Be2 e4 10.Bh5 g6 11.Bd1 Qg5 12.Kf1 Bg7 13.Ne2+=; 8.Nf3 Bc5 9.Be2 Nge7 10.0-0 e4 11.Nd4 Bd4 12.ed4 Nd4 13.Bd4+=) 8...e4 9.d3 de3 10.fe3 Bd6 11.de4 Qe7 12.Nc3 Rg5 13.Nd5=; C3) 7...Nh6 8.cd5 (8.Bc3 Rc5 9.cd5 Qd5 10.Qd5 Rd5 11.e4 Rd8 12.Bb5 Bd7 13.Bc4+=; 8.Nf3 d4 9.Bd3 f5 10.e4 f4 11.Be2 Bc5 12.d3 0-0 13.Nbd2+=) 8...Qd5 9.Qd5 Rd5 10.Nc3 Rd8 11.Nb5 Bd6 12.Nd6 Rd6 13.Bb5=; D) 7.cd5 D1) 7...Qd5 8.Nc3 (8.Ne2 Be6 9.d4 Qd7 10.Bc3 Ra8 11.e4 ed4 12.Nd4 Nd4 13.Qd4+=) 8...Qd8 9.Nf3 Bg4 10.Qb3 Ra7 11.d4 Bf3 12.gf3 ed4 13.Nb5+=; D2) 7...Rd5 8.Nc3 (8.Bc4 Ra5 9.Nc3 Nh6 10.Nf3 Nf5 11.d3 Nd6 12.Bd5 Bd7 13.0-0=; 8.e4 Ra5 9.Bc3 Ra8 10.Bb5 Bd7 11.Nf3 Bc5 12.0-0 Nh6 13.Qc2=) 8...Ra5 9.Bc4 Nh6 10.Nge2 Nf5 11.0-0 Nd6 12.Bb3 Bg4 13.d4=.

    6.c4 d4 7.ed4 (7.Bd3 Ne7 (7...de3 8.de3 Ne7 9.Qc2 g6 10.Ne2 Bf5 11.e4 Bd7 12.0-0 Ba4 13.Qd2=; 7...Qe7 8.Qh5 Kd8 9.Ne2 Nc6 10.Be4 Qc5 11.ed4 Nd4 12.Nd4 ed4 13.Qe2=) 8.ed4 (8.Qh5 g6 9.Qh4 Ra6 10.ed4 Rb6 11.Bc3 ed4 12.Ba5 Re6 13.Ne2–+; 8.Ne2 de3 9.de3 Bf5 10.e4 Bg4 11.0-0 Nd7 12.Qc2 Nc6 13.Rd1=) 8...ed4 9.Nf3 Nbc6 10.0-0 Bg4 11.Be4 f5 12.Bc6 Nc6 13.Qb3=) 7...ed4 8.Nf3 (8.Bd3 Nc6 9.Ne2 Bc5 10.Qc2 Nge7 11.Nc1 Bd6 12.Ne2 Bf5 13.0-0=) 8...c5 (8...Nc6 9.Bd3 Ne5 10.Ne5 Re5 11.Be2 Bg4 12.f3 Bf5 13.f4=) 9.g3 (9.Bd3 Qe7 10.Qe2 Qe2 11.Be2 Bd6 12.0-0 Ne7 13.Re1=) 9...Ra6 (9...Qe7 10.Qe2 Nc6 11.Qe7 Nge7 12.Be2 Be6 13.0-0+=) 10.Bg2 Re6 (10...Qb6 11.Qe2 Ne7 12.d3 Qa5 13.Qd2+=) 11.Kf1 Bd6 (11...Nh6 12.Ne1 Rb6 13.Ra2+=) 12.Bh3 Re4 (12...Re7 13.Bc8=) 13.Bc8 Qc8 14.Kg2 Ne7 15.d3 Re6 16.Nbd2 f5 17.Re1 0-0 18.Qb3 Rff6 19.Re6 Re6 20.Bd4 Bg3 (20...cd4!? 21.c5 Kh8 22.cd6 Rd6+/–) 21.hg3 (21.Kg3?! Rg6 22.Kf4 Rg4 23.Ke3 cd4 24.Ke2 Nd7=) 21...cd4 22.Nd4 Rf6 23.Rb1 b6 24.N2f3 (24.c5 Kf8 25.N2f3 Nd7 26.Ne6 Re6 27.Qe6 bc5+–) 24...Qc5 25.Qb5 Qc8 26.Re1 Nbc6 27.Nc6 Nc6 28.Nd4! Nd4 29.Re8 Rf8?? (29...Kf7 30.Rc8 Nb5 31.cb5+/–) 30.Rc8 (better is 30.Qd5 Kh8 31.Rc8 Rc8 32.Qd4+–) 30...Nb5 31.Rf8 Kf8 32.cb5 Ke7 33.Kf3 Kd6 34.a4 g5 (better is 34...Ke5+–) 35.g4 fg4 (35...f4+–) 36.Kg4 Kc5 37.d4! Kd4 38.Kg5 Kc4 39.f4 Kb4 40.f5 Ka4 41.f6 Kb5 42.f7 Ka4 43.f8Q b5 44.Kf4 b4 45.Ke3 h5 (45...Kb3+–) 46.Qh6 b3 47.Kd2 Ka3 48.Kc3 Ka2 49.Qa6 1–0. Derbin,Alexey – Bakhmetov,Pavel, Novokuznetsk RUS, City Ch, 2011.

    6.c4 Be6 A) 7.Qb3 A1) 7...b6 8.Nc3 (8.Bc3 Rc5 9.Qa4 Kf7 10.d4 ed4 11.Bd4 Ra5 12.Qc2 Nc6 13.Bc3=; 8.d4 ed4 9.ed4 Bd6 10.Nf3 Ne7 11.Be2 dc4 12.Bc4 Bc4 13.Qc4=) 8...Ne7 9.Nf3 Nd7 10.d4 ed4 11.Nd4 dc4 12.Qa2 Bf7 13.Rd1=; A2) 7...Ra7 8.Nc3 (8.Nf3 Ne7 9.d4 dc4 10.Qc2 e4 11.Qe4 Bf5 12.Qh4 h5 13.d5=; 8.d4 ed4 9.Bd4 c5 10.Bb2 Nc6 11.Nd2 Nh6 12.Ngf3 Ng4 13.cd5=) 8...dc4 9.Bc4 Bc4 10.Qc4 Nc6 11.Nf3 Qd7 12.d4 ed4 13.Nb5+=; A3) 7...dc4 8.Bc4 Bc4 9.Qc4 Nc6 10.Nf3 Nge7 11.d3 Nd5 12.0-0 Be7 13.Qb3=; B) 7.Qc2 B1) 7...Ne7 8.Bc3 (8.d4 ed4 9.Bd4 Nbc6 10.Nf3 Qd7 11.Be2 dc4 12.Bc4 Bc4 13.Qc4=; 8.Nf3 dc4 9.Bc4 Bc4 10.Qc4 Nbc6 11.d3 Nd5 12.0-0 Be7 13.Qb3=) 8...Ra7 9.d4 Nd7 10.Nf3 Bf5 11.Qb3 e4 12.Nfd2 Be6 13.c5=; B2) 7...Nc6 8.Bc3 (8.Qb3 Rc5 9.Qb7 Na5 10.Qb4 c6 11.Qc3 e4 12.d4 ed3 13.Qd3=; 8.cd5 Rd5 9.Nc3 Rd7 10.Bb5 Nge7 11.Nf3 Bg4 12.Qb3 Qa8 13.Ne4=) 8...Ra7 9.cd5 Bd5 10.e4 Be6 11.Bb5 Qd7 12.Ne2 Bg4 13.f3=; B3) 7...dc4 8.Bc4 Bc4 9.Qc4 b5 10.Qe2 Qd5 11.f3 Qb3 12.d4 Nc6 13.de5+=; C) 7.Bc3 Ra7 (7...Ra8 8.Qb3 Ra7 9.d4 ed4 10.Bd4 c5 11.Bb2 Nc6 12.Nd2 d4 13.Ngf3=) 8.cd5 (8.d4 dc4 9.de5 Qd1 10.Kd1 b5 11.Nf3 c5 12.Nbd2 Nd7 13.Be2+=; 8.Qb3 d4 9.ed4 ed4 10.Bb2 Bc5 11.Nf3 Ne7 12.Bd3 Nbc6 13.0-0+=) 8...Qd5 9.Bb2 Nc6 10.Nf3 e4 11.Nd4 Nd4 12.Bd4 c5 13.Bb2+=; D) 7.cd5 D1) 7...Qd5 8.Nc3 (8.Nf3 Bd6 9.d4 Nc6 10.Nc3 Qb3 11.Qb3 Bb3 12.de5 fe5 13.Rb1=; 8.d4 ed4 9.Qd4 Ne7 10.Nf3 Nbc6 11.Qd2 Ng6 12.Qd5 Bd5 13.Nc3=) 8...Qd7 9.Nf3 g5 10.h3 Nc6 11.Bb5 Be7 12.Qe2 Bc5 13.d4+=; D2) 7...Bd5 8.Nc3 Bc6 9.Nf3 Ne7 10.e4 f5 11.Bc4 Ng6 12.ef5 Nh4 13.Nh4=.

    6.c4 Ne7 A) 7.Nf3 A1) 7...Be6 8.cd5 (8.Qb3 Ra7 9.d4 dc4 10.Qc2 e4 11.Qe4 Bf5 12.Qh4 h5 13.d5=; 8.Bc3 Ra7 9.c5 Bg4 10.h3 Bh5 11.g4 Bf7 12.d4 e4 13.Nfd2+=) 8...Bd5 9.d4 e4 10.Nfd2 Nd7 11.Nc3 f5 12.Bb5 Ra8 13.Nc4=; A2) 7...Nbc6 8.d4 (8.Bc3 Ra7 9.d4 Bg4 10.de5 fe5 11.h3 Bf3 12.Qf3 d4 13.ed4=) 8...ed4 9.Nd4 Nd4 10.ed4 Bf5 11.c5 Nc6 12.Nc3 Kf7 13.Be2=; A3) 7...Nf5 8.Bc3 (8.cd5 e4 9.Nd4 Nd4 10.Bd4 Qd5 11.d3 ed3 12.Bc3 Ra8 13.Qd3=; 8.d4 ed4 9.Nd4 Nd4 10.ed4 Qe7 11.Qe2 dc4 12.Qe7 Be7 13.Bc4=) 8...Ra8 9.d4 ed4 10.Nd4 Nd4 11.Bd4 Nc6 12.Qh5 g6 13.Qd5=; B) 7.Qh5 g6 8.Qd1 (8.Qf3 Bg7 9.Nc3 Be6 10.cd5 Nd5 11.Nd5 Bd5 12.e4 Be6 13.Bc3+=) 8...Be6 9.cd5 Nd5 10.e4 Nf4 11.d4 Bd6 12.Ne2 Ne2 13.Be2=; C) 7.Bc3 C1) 7...Ra8 8.d4 (8.Nf3 Be6 9.Qb3 Ra7 10.d4 e4 11.Nfd2 dc4 12.Bc4 Bc4 13.Nc4=; 8.Qh5 g6 9.Qf3 Bg7 10.cd5 Nd5 11.Bc4 c6 12.d4 b5 13.Bd5+=) 8...Nbc6 9.c5 Ng6 10.Bb5 Be7 11.Nf3 0-0 12.Bc6 bc6 13.0-0=; C2) 7...Ra7 8.d4 (8.Nf3 Be6 9.c5 Bg4 10.h3 Bh5 11.g4 Bf7 12.d4 e4 13.Nfd2+=; 8.Qh5 g6 9.Qf3 Bg7 10.d4 e4 11.Qf4 g5 12.Qg3 Be6 13.cd5+=) 8...Nbc6 9.de5 fe5 10.cd5 Qd5 11.Nd2 Ng6 12.a4 Bf5 13.Ngf3=; D) 7.d4 D1) 7...ed4 8.ed4 (8.Bd4 Be6 9.Qb3 b6 10.Nf3 Nd7 11.Nc3 Nc5 12.Bc5 Rc5 13.cd5=) 8...dc4 9.Bc4 Nbc6 10.Nf3 b5 11.Be2 Nd5 12.0-0 Be6 13.Re1+=; D2) 7...Nbc6 8.de5 (8.cd5 Nd5 9.de5 fe5 10.e4 Nf4 11.Qd8 Nd8 12.Bc3 Rc5 13.g3=; 8.Nf3 ed4 9.Nd4 Nd4 10.ed4 Bf5 11.c5 Nc6 12.Nc3 Kf7 13.Be2=) 8...fe5 9.Nd2 Bf5 10.cd5 Qd5 11.Ngf3 Ng6 12.Bc4 Qd7 13.Qb3=.

    6.d4 ed4 7.ed4 Bd6 8.Qh5 g6 9.Qf3 Nh6 10.Qe2 Qe7 11.Nf3 Kf7 (11...0-0 12.Qe7 Be7 13.Be2=) 12.Qe7 Be7 13.Be2 (13.Bc1 Bb4 14.c3 Re8 15.Be2 Bf8+=) 13...Re8 14.0-0 (14.Nbd2 Bd6+=) 14...Bf5 (14...Ba3 15.Bc3 Bb4 16.Ra5 Ba5 17.Bb5+=) 15.c4 (15.Bc3 Ra7 16.Bd2 Kg7+=) 15...Ba3 16.Bc3 (16.Ra3!? Ra3 17.Ba3 Re2 18.Nc3+=) 16...Ra6-/+ (worse is 16...Re2 17.Ba5 Bb2 18.Ra2 dc4 19.Bd2 Rd2 20.Nbd2+/–) 17.Na3 (17.Re1 Bf8 18.Kf1 Ra1 19.Ba1 Re2 20.Ke2 dc4-/+) 17...Re2 18.cd5 Be4 19.Nb5 Ra1 20.Ra1 Bd5 21.Nc7 Bf3 22.gf3 Nf5 (22...Rc2 23.Nb5 Nc6 24.d5=) 23.Rb1 (23.Ra7 Re7 24.Nd5 Rd7+=) 23...Re7= 24.Rb7 (24.Nd5 Rd7 25.Nb6 Rd8=) 24...Na6 25.Ne6 (25.Na6 A pinning theme 25...Rb7) 25...Ke6 26.Rb6 Kd5 27.Ra6 Nh4 28.Kf1 Nf3+= 29.Rf6 Nh2 30.Kg2 Ng4 31.Rf8 h5 32.Bb4 Re6 33.Rd8 Kc4 34.Bc5 Rf6 35.f3 Ne3 36.Kg3 Nf5 37.Kh3 (37.Kf2 Rf7-/+) ½–½. pereira – Srdja, internet, 2006.

    6.d4 ed4 7.ed4 Nh6 8.Nd2 Bd6 9.Qe2 Kf7=+ 10.Qh5 Kg8 11.Be2 Qe7 12.Qf3 Bg4 13.Qb3 c6 14.c4 dc4 15.Nc4 Be6 16.Qc3 Rg5 17.Nd6 Qd6 18.g3 Rd5 19.Nf3 Nd7 20.0-0 Nf7 21.Bc4 Rf5 22.Be6 Qe6 23.Rae1 Qd5 24.Nh4 Rh5 25.Re8 Nf8 26.Qb4 c5 27.dc5 Ng5 28.f3 Nge6 29.Re1 Qc5 30.Kh1 Qb4 31.ab4 Nf4 32.gf4 Rh4 33.Bd4 b6 34.Bb6 Kf7 35.R1e7 Kg6 36.Be3 Kf5 37.Rd8 g5 38.Ree8 gf4 39.Bc5 Kg6 40.Bf8 h6 41.Re7 Rg8 1–0. matemastr (2685) – ComputerMan (2530), ICC, 1998.

    5.ba5 Nh6

    6.c4 d4 7.ed4 ed4 8.Nf3 d3 9.Qb3 Qe7 10.Kd1 Ng4 11.Bd4 Nc6 12.Qd3?? (better is 12.Be3=) 12...Nd4–+ 13.Qd4 c5 (13...Ra5?! 14.d3+=) 14.Qf4 Nf2 15.Kc2 Nh1 16.Nc3 g5 (16...Ra5 17.Re1 Ra3 18.Nb5=) 17.Qe4 Nf2 18.Qe7 Be7 19.Re1 Kf7 (19...Ra5?! 20.Nd5–+) 20.h3 Ra5 21.Nb5 Bf5 22.d3 Rb5! 23.cb5 c4 24.Kc3 (24.Kd2 Nd3 25.Ra1 Ra8–+) 24...cd3 25.Nd4 Rc8 26.Kb3 (26.Kd2 Bd6 27.g3 Bg3 28.Re7 Kf8–+) 26...Be4 (26...Be4 27.Re4 Ne4–+) 0–1. alaamattar (2295) – aspasio (2790), net–chess.com, 2013.

    6.Be2 Be6 7.d4 Nc6 (7...Bd6!?+=) 8.Bb5+= Ra5 9.Bc6 bc6 10.h3 (better is 10.de5!? Ng4 11.h3 Ne5 12.Bc3=) 10...Bd6+= 11.Nd2 0-0 12.de5 fe5 13.Ngf3 e4 14.Nd4 Qh4 15.Qe2? (better is 15.Rf1 Bd7 16.c4-/+) 15...Bg4!–+ 16.Qf1 (16.hg4 Qh1 Pinning (16...Qh1 Deflection)) 16...Bd7 17.g3 Bg3! 18.0-0-0? (18.fg3 Qg3 Double attack (18...Rf1 Pinning; 18...Rf1 Deflection; 18...Qg5 Decoy)) 18...Nf5 (better is 18...Rf2 19.Qg1 Ra8–+) 19.Qg2?? (better is 19.Nf5 Bf5 20.fg3+/–) 19...Be5–+ 20.N2b3 Nd4 21.Nd4? (21.Bd4 Rf2 22.Qf2 Qf2 23.Na5 Bd4 24.ed4 c5–+) 21...c5 (21...Qf2?! 22.Qf2 Rf2 23.Nb3 Bb2 24.Kb2–+) 22.Nb3 (22.f4 ef3 23.Qd2 Ra7–+ (23...cd4?! 24.Qa5 Qe4 25.ed4-/+)) 22...Bb2 (better is 22...Rf2!? 23.Qf2 Qf2 24.Be5 Ra3 25.Kb2 Rb3 26.Kb3 Qe3 27.Kb2–+) 23.Kb2 Qf6 24.Ka2 (24.Kb1 Ra3 25.Rhg1–+) 24...Ra3 0–1. alanwsp (2230) – aspasio (2790), net–chess.com, 2013.

    5.b5 a4

    6.c4 dc4 7.Bc4 Bd6 8.Nf3 Qe7 9.0-0 Be6 10.Be6 Qe6 11.d4 e4 12.Nfd2 f5 13.Nc3 Nf6 14.Na4 0-0 15.Nc5 Qc8 (15...Qd5 16.Qb3 b6 17.Qd5 Nd5 18.Ncb3+=) 16.a4 Rd8 (16...Kh8 17.Qb3+/-) 17.Qc2 (17.Qb3 Kh8 18.Ne6 Rd7+-) 17...h6 18.Nc4 (18.Qc4 Kh7+/-) 18...Bc5 19.dc5 Kh8 (19...Qe6!?+/-) 20.Bf6+- gf6 21.Rfd1 c6?? (better 21...Rg8+-) 22.Nb6 Rd1 23.Rd1 Qe8 24.Na8 cb5 (24...Nd7 25.Nc7 Qe7 26.Rd6+-) 25.ab5 Nd7 (25...Kg7 26.Qa2 Qc8+-) 26.c6 bc6 27.bc6 Ne5 28.c7 (28.c7 Nc6 29.Nb6+-) 1-0. jhonores (2210) - yogiberra (2115), Rated Blitz game, lichess.org, 2020.

    6.c4 dc4 7.Bc4 Nh6 8.Nf3 Bd6 9.h3 (9.d4 ed4 10.Nd4 Nf7+=) 9...Nd7 10.d4 ed4 11.Nd4 Nb6 12.Ba2 Qe7 13.Qh5 Nf7 14.0-0 g6 15.Qh4 0-0 (15...Ng5 16.Re1+=) 16.Nd2 (16.Nf5 Bf5 17.Bf6 Bg3 18.Be7 Bh4 19.Bh4 c5+/-) 16...Kg7 17.Ne4 g5 (better 17...Be5 18.f4 Bd4 19.Bd4 Nd6 20.Nd6 Qd6+/-) 18.Qh5?? (18.Nd6 Nd6 (18...gh4?? 19.N6f5 Bf5 20.Nf5 Kh8 21.Ne7+-) 19.Qg5 fg5 20.Nf5 Kg6 21.Ne7 Kh5+-) 18...Ne5?? (better 18...Qe4 19.Bb1 Qh4 20.Qh4 gh4-+) 19.Ng3 (better 19.Nd6 cd6 20.Rac1+-) 19...f5?? (better 19...Qe8 20.Ndf5 Bf5 21.Nf5 Kh8+/-) 20.f4+- Ng6 (20...gf4 21.ef4 Kh8+-) 21.Ndf5 1-0. A3orA6 (2400) - feiolis (2240), Rated Blitz game, lichess.org, 2019. (=1.a3 A00: Irregular Openings 1...d5 2.b4 a5 3.Bb2 f6 4.e3 e5 5.b5)

    6.Qh5 g6 7.Qd1 c5 8.c4 d4 9.Qc1 Nd7 10.Bd3 Nh6 11.Nf3 Bd6 12.h3 0-0 13.0-0 Qe7 14.Qc2 Qf7 (14...f5 15.e4+=) 15.e4 Nb6 16.Nh2 (16.Be2!?=) 16...Be6-/+ 17.f4 (better is 17.Rc1!?-/+) 17...ef4–+ 18.Nf3 (18.Rc1 f5 19.ef5 Nf5–+) 18...Nc4 19.Bc4 Bc4 20.d3 Bb3 21.Qe2 Rfe8 22.Nbd2 Qd7 (22...Nf5 23.Nb3 ab3 24.Rfc1–+) 23.Nc4 (23.Nb3 ab3 24.a4–+) 23...Bc4 24.dc4 Nf7 (24...Nf5!? 25.Qd3 Ne3 26.Rfe1–+) 25.Qd3 Ne5 26.Ne5 fe5 27.Rf3 Rf8 28.Raf1 Be7 29.Bc1 Bh4 30.Bd2 g5 31.Be1 Be1 32.Re1 h5 Black intends g4 33.Ref1 g4 34.hg4? (34.R3f2–+) 34...hg4 (34...Qg4?! 35.Rh3–+) 35.R3f2 g3 36.Rf3 Qh7 37.Rg3 (37.Re1 Kf7 38.Kf1 Qh1 39.Ke2 Qg2 40.Kd1 Rh8–+) 37...fg3 38.Qg3 Qg7 (38...Qg7 39.Qg7 Kg7–+) 0–1. GuestJYZH – GuestCFSD, freechess.org, 2017.

    5.b5 c5

    6.bc6 bc6 7.c4 Qb6 8.Qc2 (8.Ra2 Be6+=) 8...Be6 (8...Bf5 9.d3+=) 9.cd5 cd5 10.Nc3 Nd7 11.Rb1 Rc8 12.Qa4 Bd6 13.Nf3 Ne7 14.Be2 (14.Nb5 Bf5 15.d3 Bc7=) 14...0-0 15.0-0 Nc5 16.Qb5? (better is 16.Qc2!?+=) 16...Qc7 17.Bd1 Rb8 18.Qe2 Bg4 (18...Bf5 19.e4 Ne4 20.Ne4 Be4 21.d3 Bf3 22.Qf3 Ba3 23.Rc1–+) 19.h3? (19.d4 e4 20.dc5 Bh2 21.Kh1 ef3 22.gf3 Bh3-/+) 19...Bh5?? (19...Bf5 20.d4 Bb1 21.dc5 Qc5 22.Nb1–+) 20.g4?? (better is 20.d4 Bf3 21.Qf3-/+) 20...Bg6–+ 21.e4 Ne4 22.Ne4 de4 (22...Be4!? 23.d3 Bf3 24.Qf3 Ba3 25.Rc1–+) 23.Nh4 e3! 24.Ng6 (24.de3 Bb1 Discovered attack; 24.Qe3 Bb1 Discovered attack; 24.fe3 Bb1 Discovered attack) 24...ef2 (24...Ng6?! 25.de3 e4 26.Bc2=) 25.Qf2 Ng6 26.Bf3?? (better is 26.d4–+) 26...Bc5 27.d4 Rb2! 28.Qb2 (28.Rb2 Bd4 Double attack (28...Bd4 Decoy); 28.Qb2 Bd4 Double attack (28...Bd4 Decoy)) 28...Bd4 29.Qd4 ed4 30.Rfd1 (30.Bd5 Kh8 31.Rf3–+) 30...Qg3 31.Bg2 Nf4 32.Rd2 Qe3 (32...Qe3 33.Rf2 Ng2 34.Kg2 Qe4 35.Kh2 Qb1–+) 0–1. Fournier,Frederic (1770) – mick51 (2060), 3 min +2 s chess16.com, 2008.

    6.bc6 bc6 7.c4 d4 8.Nf3 (8.ed4 ed4 9.Bd3 Qb6=) 8...c5= 9.Bd3 g6 (9...Nc6!?=) 10.Be4+= Ra7 11.0-0 (11.Qb3 Nd7 12.d3 Ne7=) 11...Bg7 (11...Ne7 12.Qa4 Qd7 13.Qb5=) 12.ed4 cd4 13.Re1 (13.Qb3 Na6 14.a4 Ne7=) 13...Ne7= 14.Bc2 (14.Qb3!? Nbc6 15.c5=+) 14...0-0 15.d3 Bb7 (15...Rb7 16.Bc1-/+) 16.a4 Nbc6 17.Ba3 Nb4 18.Nbd2 Bf3 19.Nf3 Nec6 20.Bb3 Kh8 21.Nd2 (21.Qd2!?=) 21...f5 (21...Nd3!? 22.Bf8 Bf8-+) 22.Nf3 Re7 23.c5 h6 (23...e4 24.de4 fe4 25.Ng5-+) 24.Rc1? (better 24.Qb1!?=+) 24...e4-/+ 25.de4 fe4 26.Nd2 (26.Nh4 Qe8 27.Bb4 ab4-+) 26...e3 27.fe3 de3 28.Nf3 Qd1?? (better 28...Nd3 29.Nh4 Nce5-+) 29.Red1?? (29.Rcd1 e2 30.Rd2-+) 29...e2-+ 30.Re1 Nd3 31.Bd5 (31.Bc4 Rd8 32.Bd3 Rd3-+) 31...Nc1 (better 31...Ne1 32.Re1 Bc3 33.Bb2 Bb2 34.Bc6-+) 32.Bc1 Nb4 (better 32...Nd4 33.Kf2 Rf5-+) 33.Bc4 Nc2 34.Re2 Re2 35.Be2 Nd4 36.Bb5 Nf3 37.gf3 Bd4 (37...Rf3 38.c6 g5 39.Bd2 Bd4 40.Kh1-+) 38.Kg2=+ Bc5 39.Bb2? (better 39.Bh6!? Rd8 40.Bf4=+) 39...Kh7 40.Bc3 Bb4 41.Be5 Rf5 (41...Rc8 42.Kf2-+) 42.f4-/+ h5 43.Kf3 Rf7 44.Bd3 Kh6 45.Ke4 Rd7 46.h3 Bd2 47.Bb5 Re7 48.Kd5 Rf7 49.Ke6 Rf8 50.Bd6 (50.Bd3 Be3-/+ (50...Bf4?! 51.Ke7=)) 50...Rc8 51.Bd7 (51.f5 gf5 52.Kf5 Rc3-/+) 51...Rc4 52.f5 gf5 53.Kf5 Rd4 54.Bf8?? (better 54.Ke6-+) 54...Kh7 55.Be6 (55.Be8 Rf4 56.Ke5 Rf8 57.Bh5-+) 55...Ra4 (better 55...Rf4 56.Ke5 Rf8 57.Bf5 Kg7-+) 56.Be7 Rf4 57.Ke5 Rf3 58.Bf5 (58.Ke4 Re3 59.Kd5 a4 60.Bf5 Kg7-+) 58...Kg7 59.Bf6 (59.Bc5-+) 59...Kf7 60.Bd8 (60.Be6 Ke8 61.Bf5 a4 62.Bg6 Kf8-+) 60...a4 (better 60...Bc3 61.Kd5 Rf5 62.Kc4-+) 61.Be4 (61.Be6 Kg6 62.Kd4-+) 61...Re3 62.Kf5 a3 (better 62...Re4 63.Ke4 a3-+) 63.Bb6 (63.Bd5 Ke8 64.Bb6-+) 63...Re4! 64.Ke4 Bc3 65.Kd3 a2 66.Kc3 a1Q 67.Kc4 Qh1 68.Bc7 Qh3 69.Kc5 Qg4 70.Kc6 h4 (70...h4 71.Bb6 Ke6 72.Ba7 h3 73.Kb5 h2 74.Bc5 h1Q 75.Kb6 Qb1 76.Kc7 Qf4 77.Kc6 Qa4 78.Kc7 Qd7) 0-1. pacal56 (2250) - mecker (2245), Rated Blitz game, lichess.org, 2015.

    6.bc6 bc6 7.c4 Bd6 8.Nf3 Ne7 9.d3 0-0 10.Nbd2 Be6 11.Be2 Nd7 12.0-0 a4 13.Qc2 Qa5 14.Rfb1 Rfc8 15.Bc3 Qa7 16.h3 Nf5 17.Nf1 Nc5 18.e4 Ne7 19.Bb4 d4 20.N1d2 Qc7 21.Bf1 g5 22.Nh2 Kg7 23.Bc5 Bc5 24.Rb2 Qd6 25.Be2 Ng6 26.Bg4 Nf4 27.Be6 Qe6 28.Rb7 Kh8 29.Ndf3 Rg8 30.Ng4 Rg6 31.Rab1 Rag8 32.Rb8 h5 33.Ngh2 Bf8 34.Qa4 Nh3?? (34...Ne2 35.Kh1 Nc3 36.Qa5 Nb1 37.Rb1-/+) 35.Kf1?? (better 35.gh3 Qh3 36.Rf8 (36.Qc6?! g4 37.Ng5 fg5=) 36...Rf8 37.Qc6+/-) 35...Nf4-/+ 36.Qa8 Bh6?? (36...Bd6!? 37.Rg8 Rg8 38.Qc6 Rc8-/+) 37.Rg8 (better 37.Ne1!? Nd3 38.Nd3 Qc4 39.Rd1=) 37...Rg8=+ 38.Rb8 h4?? (better 38...Nd3 39.Rg8 Qg8 40.Qc6 Kg7-/+) 39.Rg8+= Qg8 40.Qc6 Qd8? (better 40...Bg7+=) 41.Ng4+- Bg7 42.c5 (better 42.Ne1+-) 42...Nd3+= 43.Qd6 Qd6 44.cd6 The passed pawn on d6 will become decisive later 44...Nc5 45.Ke2 (better 45.Nd2!? Kg8 46.a4=) 45...Kg8-/+ 46.Nd2 Kf7 47.Nc4? (47.f3 Ke6 48.Nc4 Kd7-/+) 47...Ke6 (47...Ne4 48.f3 Nc3 49.Kd2-+) 48.a4? (better 48.f3-/+) 48...Na4 49.f3 Nc5 50.Kd2 Bf8 51.Nb6 Bd6 52.Nd5 (52.Nh6 Bc7 53.Nc4 Nb7-+) 52...Nd7 (better 52...f5 53.Ngf6 fe4 54.fe4-+) 53.Kd3 Be7 54.Ke2 Bd8 55.Kd3 (55.Nb4-+) 55...Nb6 (better 55...f5 56.Nf2 g4-+) 56.Ke2?? (better 56.Ngf6 Bf6 57.Nb6-/+) 56...Nd5-+ 57.ed5 Kd5 58.Kd3 (58.Nh6-+) 58...f5 59.Nf2 Bb6 (better 59...Ba5 60.Kc2 e4 61.fe4 fe4-+) 60.Ke2 (60.Kd2-+) 60...e4 61.fe4 fe4 62.Ng4 d3 63.Kd2 Kd4 64.Nf6 e3 65.Kd1 (65.Kc1 e2 66.Kb1 d2 67.Ka2 d1Q 68.Kb2 Kc4 69.Nd5 Qb3 70.Kc1 e1Q) 65...Ba5 (65...e2 66.Kc1 e1Q 67.Kb2 Qd2 68.Kb1 Qc2 69.Ka1 d2 70.Ne4 d1Q) 66.Ng4 (66.Kc1 e2 67.Ne4 e1Q 68.Kb2 Ke4 69.Ka2 d2 70.Kb2 d1Q 71.Ka2 Bb4 72.Kb2 Qf2) 66…e2 (66...e2 67.Kc1 e1Q 68.Kb2 Bc3 69.Ka3 Qe7 70.Kb3 Qb4 71.Ka2 Qb2) 0-1. cipiripi (2400) - MrWalker (2400), Rated Blitz game, lichess.org, 2016.

    6.bc6 bc6 7.d4 e4 8.c4 f5 9.Bc3 (9.Nc3 Nf6=) 9...Nf6 10.Ne2 Bd6 11.g3 (11.Qa4 0-0=) 11...0-0 12.Nf4 Bf4 13.gf4 Be6 14.Be2 dc4 15.Nd2 Nd5 16.Qc1 Nb6 17.0-0 (17.Rg1!? Rf7 18.Rb1=) 17...N8d7-/+ 18.Kh1 Nf6 (18...c5 19.Rb1=+) 19.Rg1 Kh8 20.d5? (20.Rb1!?=+) 20...Bd5 (better 20...cd5!? 21.Bd4 Rb8-+) 21.Rb1-/+ Na4 22.Nc4 Nc3 23.Qc3 Bc4 24.Bc4 Ng4 25.Rg2 Qh4 (25...Rb8 26.Rbg1-/+) 26.Rf1 (26.Rb7 Qh6 27.Be2 Rab8 28.Rb8 Rb8 29.Bg4 Rb1 30.Rg1 Rg1 31.Kg1 A) 31...fg4?? 32.Qe5 (32.Qa5?! Kg8+-) 32...Qh2 33.Kh2+-; B) 31...Qg6=) 26...Rf6 (26...Qf6 27.Qc2-/+) 27.Be2=+ Rg6 (27...h5 28.Qc5=+) 28.Bg4 Rg4 29.Rfg1 (29.Qc6 Rd8 30.Rg4 Qg4=+ (worse 30...fg4 31.Qe4 Qh3 32.Kg1+/-)) 29...h5 (better 29...Rg2!? 30.Kg2 Qg4 31.Kh1 Qf3 32.Rg2 Rg8-/+) 30.Qc6= Rf8 31.Qd6 (31.Qc5 Qd8=) 31...Rf6 (31...Rd8 32.Rg4 hg4= (32...Rd6?? 33.Rh4 g6 34.Rc1+-; worse 32...fg4 33.Qc7+/-)) 32.Qd8+= Kh7 33.Qe8 (33.Rg3!?+=) 33...Rfg6 (33...Qh3 34.Rg3 Rg3 35.Rg3 (worse 35.fg3 Rd6 36.Qa4 Rd2 37.Qe4 Qh2) 35...Qf1 36.Rg1=) 34.Rg4 hg4 35.Rg2 Qh3 36.Qd7 Rf6 37.a4 (better 37.Qd5=) 37...Qf3-/+ 38.Kg1 Qe2 (38...Rf7! 39.Qd8 Rf8 40.Qh4 Kg8-/+) 39.Rg3=+ Qc4 (39...Qd3 40.Qe8=+) 40.Kg2 (40.h3 Qc5=) 40...Qc5 (40...Qc6 41.Qe7=+) 41.h3= gh3 42.Kh2 Rg6 43.Rg6 Kg6 44.Qe8 Kf6 45.Qd8 Kg6 46.Qe8 Kf6 47.Qd8 Qe7 (47...Kf7!?=) 48.Qd4 (48.Qa5 g5 49.Qc3 Kg6+/-) 48...Kg6+= 49.Qb6 Kh7 50.Kh3 (better 50.Qa5!? Qf7 51.Qe1+/-) 50...Qf7 51.Kg2 Qg6 52.Qg6 Kg6 53.f3 ef3 54.Kf3 Kf6 55.e4 fe4 56.Ke4 g6 57.Kd4 Kf5 58.Ke3 Kf6 59.Ke4 Ke6 60.Kd4 Kf5 61.Ke3 Kf6 62.Ke4 Ke6 63.Kd4 Kf5 ½-½. A3orA6 (2305) - KarpovsHausmeister (2320), Rated Blitz game, lichess.org, 2019. (=1.a3 A00: Irregular Openings 1...e5 2.b4 d5 3.Bb2 f6 4.e3 a5 5.b5 c5)

    6.bc6 Nc6 7.c4 d4 8.Nf3 Bc5 9.Bd3 Nge7 10.0-0 0-0 11.Qc2 g6 (11...Ng6 12.Re1=+) 12.ed4 Nd4 13.Nd4 Bd4 14.Bd4 (14.Nc3 Bf5 15.Be4 Rc8=+) 14...Qd4=+ (worse 14...ed4 15.Re1=) 15.Nc3 Be6 16.Nb5 Qc5 17.Be4 (17.Rac1 Rac8=+) 17...Rab8 (17...Qc4!? 18.Qb1 f5 19.Bb7 Rab8=+) 18.d3= f5 19.Bf3 Nc6 20.Rfe1 Bf7 21.Rab1 Rfe8 22.g3 b6 23.Qa4 (23.Re3 Rbd8=) 23...Nd4 (23...e4!? 24.de4 Ne5=+) 24.Nd4= Qd4 25.Red1 Red8 26.Qc6 Rd6 27.Qa4 (27.Qc7 Rbd8=) 27...Rbd8=+ 28.Rb5? (28.Qc2 g5=+) 28...g5 (better 28...Be8 29.Qb3 Bb5 30.Qb5 Kg7-+) 29.Rbb1=+ g4 30.Bg2 (30.Bb7 Qc5=+) 30...f4 (30...e4 31.Bf1 e3 32.Qc2 ef2 33.Qf2 Qf2 34.Kf2 Bc4 35.d4-/+) 31.gf4 (31.Be4!?=+) 31...ef4 (31...Qf4 32.Qc2 Rh6 33.Qc1 Qh2 34.Kf1-+) 32.Be4-/+ g3 33.hg3 fg3 34.Qc2 Rf6 (34...Bc4!? 35.dc4 Qf2 36.Qf2 gf2 37.Kf2 Rd1 38.Rb6 Ra1-+) 35.Rf1=+ Bg6 36.Qb2 Be4 37.de4?? (better 37.Qd4 Rd4 38.de4 Rc4 39.e5=+) 37...gf2-+ 38.Rf2 Rg6 39.Kf1 (39.Kh2 Qe3 40.Rg2 Qh6 41.Kg1-+) 39...Qc4 (39...Qd3 40.Qe2 Qh3 41.Rg2 Qh1 42.Kf2 Qg2 43.Ke1 Qg1 44.Qf1 Qe3 45.Qe2 Rg1) 40.Qe2-+ Qe6 (40...Rd3!?-+) 41.Qf3 Qc4 42.Qe2 Qe2 (better 42...Rd3!?-+) 43.Re2 Rd3 44.e5 (44.Rg2 Rg2 45.Kg2 Ra3 46.Rb6 a4-/+) 44...Re6 (44...Rf3 45.Rf2 Ra3 46.Rd1-+) 45.a4 (45.Rg2 Kf7 46.Rf2 Kg7 47.Rg2 Kh8-/+) 45...Rf3 (45...Rd4 46.Ra1-/+) 46.Kg2 (46.Rf2 Ra3 47.Rf4 Re3=+) 46...Rf5 (46...Rf4 47.Ra1-/+) 47.Rb5 (better 47.Re3=+) 47...Rg6-+ 48.Kh1 Kf7?? (better 48...Rf4 49.Rg2 Rg2 (49...Ra4?! 50.Rb6 Kf7 51.Rgg6 hg6 52.Rf6 Kg7 53.Kg2-/+) 50.Kg2 Rb4-+) 49.e6!+- Re6 50.Rf5 Rf6 51.Rf6 Kf6 52.Rb2 h5 (52...Ke5 53.Rb6 Kd4 54.Kg1+-) 53.Rb6 Kg5 (53...Ke7 54.Ra6 Kd7+-) 54.Rb5 Kg4 55.Ra5 h4 (55...Kh4 56.Rd5 Kg3 57.a5 h4 58.a6 Kf4 59.a7 h3 60.a8Q Ke4 61.Rd7 Kf4 62.Qf8 Ke4 63.Qe8 Kf4 64.Rf7 Kg4 65.Qg8 Kh4 66.Rh7) 56.Re5 h3 (56...Kf4 57.Re1 h3 58.a5 h2 59.a6 Kf5 60.a7 Kg6 61.a8Q Kf6 62.Qc6 Kg5 63.Qd5 Kg4 64.Re4 Kg3 65.Qc5 Kf3 66.Qe3) 57.Re8 Kg3 (57...Kh5 58.a5 Kg6 59.Re6 Kh5 60.a6 Kg5 61.a7 Kf5 62.Re8 Kg6 63.a8Q Kg5 64.Qd5 Kg4 65.Re4 Kf3 66.Kh2 Kf2 67.Qf5) 58.a5 Kf4 (58...Kf3 59.a6 Kf4 60.a7 Kg4 61.a8Q Kf4 62.Qe4 Kg5 63.Re6 Kh5 64.Rg6 h2 65.Qg4) 59.a6 Kf5 (59...Kg4 60.a7 Kf4 61.a8Q h2 62.Qd5 Kg3 63.Qg5 Kf3 64.Kh2 Kf2 65.Qf5) 60.a7 Kf6 (60...Kg6 61.a8Q h2 62.Qd5 Kf6 63.Re6 Kg7 64.Qd7 Kg8 65.Re8) 61.a8Q Kf7 (61...Kg5 62.Qd5 Kg4 63.Re4 Kg3 64.Qc5 h2 65.Qe3) 62.Qd8 (62.Qd8 h2 63.Qd7 Kg6 64.Rf8 Kg5 65.Qg7 Kh4 66.Rh8; 62.Qc6 h2 63.Qe6 Kg7 64.Rg8 Kh7 65.Qg6) 1-0. cipiripi (2235) - mecker (2210), Rated Blitz game, lichess.org, 2015.

    6.bc6 Nc6 7.c4 d4 8.Nf3 de3 9.fe3= Bg4 10.Be2 Nge7 (10...e4 11.Nd4 Be2 12.Ne2=) 11.0-0 Ng6 (11...e4 12.Nd4 Be2 13.Qe2+=) 12.Nc3 Be7 13.Nd5 0-0 14.Qb3?? (14.Ne5 Be2 15.Nc6 Bd1 16.Nd8 Bg4+=) 14...Rb8 (better 14...e4-/+) 15.d3 Bc5 16.Qb5 Qd6 17.h3 (17.d4 ed4 18.ed4 Bd4 19.Bd4 Bf3+=) 17...Be6 (17...Bd7 18.Rf2 Nf4 19.ef4 Nd4 20.Qa5 Ne2 21.Kf1 b6-/+) 18.Rae1 (better 18.d4!? ed4 19.ed4+=) 18...Kh8 (18...Bd5 19.d4 Ba3 20.Ba3 Qa3 21.Qd5 Kh8 22.Kf2-/+) 19.d4=+ ed4 (19...Ba3 20.Ba3 Qa3 21.Ra1=+) 20.ed4= Ba7 (20...Ba3 21.Ba3 Qa3 22.Nc7=+) 21.Rd1 Rfd8 22.Rfe1 (22.Ne3 Qf4 23.Rd3 Qg3-/+) 22...Bd5 (22...Qg3 23.Bf1 Nge5 24.Re3 Nf3 25.Rf3-/+) 23.cd5= Qd5 24.Qd5 Rd5 The pressure on the isolated pawn grows 25.Bc4 Rd7 26.Kh2 b5 (26...Rbd8 27.Re4=) 27.Be6 (better 27.Bb5!? Rdd8 28.a4+/-) 27...Rd6=+ 28.d5 (28.Kg3 Rbd8=+) 28...Nce7 29.h4 (29.g4 Nf4 30.Ne5 Rd5 31.Bd5 Nfd5+/- (31...Ned5? 32.Nc6 Rc8 33.Na7 Rc2 34.Kg3+-)) 29...h5 30.Bc3 (30.Kg3 Rbd8-/+) 30...b4-/+ 31.ab4 ab4 32.Bb2 b3 (32...Rb5 33.Re4-/+) 33.Ra1 (better 33.Ba3!? Ra6 34.Be7 Ne7 35.d6=+) 33...Bf2-/+ 34.Rec1? (34.Red1 Rb5-/+ (34...Nh4?! 35.Nh4 Bh4 36.Ba3 Re6 37.de6=)) 34...Bh4?? (34...Nd5 35.Rd1 Re6 36.Rd5-+) 35.Ra7? (35.Ba3 Ra6 36.Bf7-+) 35...Bg5?? (better 35...Nd5 36.Bf7 Bf2-+) 36.Ng5= fg5 37.Rcc7 Re8 (37...Nd5 38.Rg7 Re6 39.Rgb7 Kg8 40.Rb8 Re8 41.Re8 Nf8 42.Rg7 Kh8 43.Rf8) 38.Rab7 Kh7? (38...g4 39.Bf7 g3 40.Kg3 Nf5 41.Kh2+=) 39.Ba3 (39.Bf7 Red8 40.Bg6 Kg6 41.Re7 h4+-) 39...Re6 (better 39...Red8!?+/-) 40.de6+- Nf5 41.e7?? (41.Rf7 Ra8 42.Bb2+- (42.Rb3?! Nd4 43.Re3 Nc2+/-)) 41...b2 (41...g4 42.Rb3 Nge7 43.Rb5=) 42.Rb2 Nge7 43.Be7 (43.Rb5!? Kg6 44.Be7 Ne7 45.Rcc5+/-) 43...Re7= (worse 43...Ne7 44.Rc5+/-) 44.Rc5 (44.Re7 Ne7 45.Rb5 Kg6=) 44...g6 45.Rb6 g4 46.Rcc6?? (46.Rcb5 Re1 47.Rb3 g3 48.Rg3 Ng3 49.Kg3 g5-/+) 46...Rg7 (better 46...g3 47.Kh3 Re4 48.Rb7 Kh6 49.Rg6 Kg6 50.Rb6 Kg5 51.Rg6 Kf4-+) 47.g3 (47.Rc5 g3 48.Kh3 Ra7=) 47...Kh6 (47...Rd7 48.Rc3=+) 48.Rf6 Kg5 49.Rf8 (49.Ra6 h4 50.gh4 Nh4=) 49...Rd7 50.Rb2 (50.Rb3!?=+) 50...Rd3-/+ 51.Rf7? (51.Rg2 h4 52.gh4 Nh4-/+) 51...Rf3 (better 51...Ng3!? 52.Rf8 h4-+) 52.Rb5 (52.Rf8-/+) 52...Rf2 (better 52...Re3!?-+) 53.Kg1=+ Rf3 54.Kh2 h4 (better 54...Re3!?-+) 55.gh4=+ Kh4 56.Rh7 Kg5 Black prepares the advance g3 57.Rc5 (57.Kg2 Rg3 58.Kf1 Ra3=+) 57...g3-/+ 58.Kg2 (58.Kg1 Rd3-/+) 58...Rf2 (58...Kg4 59.Rc4 Rf4 60.Rf4 Kf4=+) 59.Kg1=+ Rb2 60.Rd7 (60.Re7 Rc2 61.Rb5 Rc1 62.Kg2 Rc4=+) 60...Kg4-/+ 61.Rd1 (61.Rc4 Kf3 62.Rc1 Rg2 63.Kh1 Rh2 64.Kg1 Ne3-/+) 61...Kh3 (better 61...Rg2 62.Kg2 Ne3 63.Kg1 Nd1 64.Rc4 Kf5 65.Rc5 Kf4 66.Rc4 Kf3=) 62.Rc4?? (62.Rc7!?-/+) 62...Nh4 (62...Ne3 63.Rcd4 Nd1 64.Rd1-+) 63.Rh4 (better 63.Rf4!?-+) 63...Kh4 64.Rd4?? (64.Rd7-+) 64...Kh3 65.Rd1 g5 66.Rf1 g4 67.Re1 g2 (better 67...Rb3 68.Kf1 Kh2-+) 68.Rd1 (68.Rd1 g3 69.Re1-+). norba94 (2340) - mecker (2390), Rated Blitz game, lichess.org, 2016.

    6.d4 cd4 7.ed4 Bd6 8.c4 Nd7 9.c5 Bb8 10.Nc3 Ne7 11.Na4 (11.Nf3 0-0=) 11...0-0 12.Ne2 Re8 13.g3 ed4 14.Bg2 Ne5 15.Bd4 Bg4 16.h3 Bh5 17.g4 Bg6 18.0-0 Nc4 19.f4 Qd7 20.Nac3 Attacking the isolated pawn on d5 20...Bf7 21.Ng3 Ng6 22.Nh5 Nh4 23.Ng7 Kg7 24.Bf6 Kf6 25.Qd4 Increasing the pressure on the isolated pawn on d5 25...Ke7 26.Nd5 (26.Bd5 Ng6 27.Qc4+/-) 26...Kd8-/+ 27.Rad1 Ng2 28.Qf6 Kc8 29.Nb6 Nb6 30.Rd7 (30.Rd7 Nd7 31.Qf7+-) 1-0. fasano (2135) - marekt (2115), gameknot.com, 2018.

    6.d4 Nd7 7.de5+/– Ne5 (7...Be7 8.Qd5 (8.Nc3 Ne5 9.Qd5 Qb6 10.Qe4 Qe6 11.Nd5+–; 8.Nf3 Nb6 9.Be2 Nh6 10.0-0 0-0 11.Qd2+/–) 8...Ne5 9.Nc3 Qb6 10.Qe4 Qe6 11.Nd5+–; 7...Nb6 8.Bd3 Be6 9.Qh5 Bf7 10.Qg4 fe5 11.Be5+/–; 7...Qe7 8.Nc3 (8.Qd5 Ne5 9.b6 Be6 10.Bb5 Kf7 11.Qe4+/–) 8...d4 9.ed4 cd4 10.Nd5 Qe5 11.Ne3+/–) 8.Be5 fe5 9.Qh5 Kd7 (9...Ke7 10.Qe5 Kf7 11.Nf3+/–) 10.Qe5 Nf6 11.Nc3 (11.Nf3+/–) 11...Bd6 12.Qg5 Qf8 13.Nd5 Rg8?? (better is 13...Nd5 14.Qd5 Qf6+–) 14.Nb6 Ke8 (14...Kc7 15.Na8 Kb8+–) 15.Na8 Ng4 (15...Ne4 16.Qh4 Bf5 17.Bc4+–) 16.Nf3 g6 17.Rd1 Rg7 (17...Nf6 18.b6 h6 19.Qh4+–) 18.Qd5 1–0. Woelfelschneider,Peter – Sparfeld, 2000.

    6.Nf3 Bd6 7.Nc3 Be6 8.Be2 Ne7 9.0-0 Nd7 10.d4 cd4 11.ed4 e4 12.Nd2 f5 13.f3 (13.Re1 Qc7 14.h3 0-0-/+) 13...Nf6 (13...Qc7 14.h3-/+) 14.fe4 fe4 15.Bh5 Ng6 16.b6 (better 16.Bg6!? hg6 17.h3-/+) 16...Qb6-+ (16...Nh5?! 17.Qh5 Qb6 18.Nd1-/+) 17.Na4 Qc7 18.h3? (18.Bg6 hg6 19.h3 Ng4-+) 18...0-0 (18...Nh5 19.Qh5 Qc2 20.Qd1-+) 19.Nc5?? (19.Bg6 hg6 20.c4 Bh2 21.Kh1 Nh5-+) 19...Bf7 (19...Nh5!? 20.Qh5 Bc5 21.dc5 Qc5 22.Kh1 Qc2 23.Bg7 Kg7 24.Rfd1-+) 20.c4? (20.Bg6 hg6 (20...Bg6?! 21.Ne6 Qc6 22.Nf8 Rf8 23.c4-/+) 21.Nb1 Nh5-+ (21...Bc5?! 22.dc5 Qc5 23.Bd4-/+)) 20...b6 (20...Nh5 21.Qh5 Nf4 22.Qg4-+) 21.Ncb3? (21.Bg6 hg6 22.Na4-+) 21...dc4 22.Rc1 (22.Bg6 hg6 23.d5 cb3 24.Bf6 gf6 25.Ne4-+) 22...Qb7 (better 22...Nh5 23.Qh5 Nf4 24.Qb5-+) 23.Nc4? (23.Bg6 Bg6 24.Nc4 Be7-/+) 23...Bc7 (23...Bc4 24.Rf6 Rf6 25.Rc4-+) 24.Ne3? (24.Bg6 Bg6 25.Ne3 a4-/+) 24...Rad8?? (better 24...Nh5 25.Rf7 Rf7 26.Qh5 Nf4-+) 25.Nf5?? (25.Bg6 Bg6 26.Qe2 Bf7-/+) 25...Bb8 (25...Nh5 26.Na5 ba5 27.Qh5-+) 26.Qe2?? (better 26.Nh6 Kh8 27.Nf7 Qf7 28.Qc2-/+) 26...Bb3 (26...Nh5 27.Qh5 Bb3 28.Qg4-+) 27.Qb5 Bd5 (27...Qd5 28.Qb6 Nh5 29.Rc5-+) 28.Bg6 hg6 29.Ne3 Bf7 30.a4 Nd5 31.Nc4 Qe7 (31...Bf4 32.Rce1-+) 32.Ba3 Qg5 (32...Nb4 33.Ne5-+) 33.Bf8 Rf8 (33...Kf8?! 34.Nb6 Qe3 35.Kh1-+) 34.Ne5 Be5 35.de5 Nf4 (better 35...Ne3!? 36.Qb2 Nf1 37.Rf1 Qe3 38.Kh1-+) 36.Rc2 e3 (36...Nh3 37.Kh1 Nf4 38.Rcf2 Qh4 39.Kg1-+) 37.e6 Qb5?? (37...Nh3 38.Kh2 Be8 39.Rf8 Kf8 40.Qb6 Qe5 41.g3 Ng5-+ (41...Ba4?? 42.Rc8 Ke7 43.Rc7 Qc7 44.Qc7 Ke6 45.Qb6 Kf7 46.Qb7 Kf8 47.Kh3+-)) 38.ab5?? (better 38.ef7 Rf7 39.ab5-/+) 38...Be6-+ (worse 38...Ne6 39.Re2 Be8 40.Re3 Rf1 41.Kf1 Bb5 42.Ke1-+) 39.Rc3 (39.Re1 Nd5-+) 39...e2 (better 39...Ne2 40.Kh2 Nc3-+) 40.Re1 g5 (40...Bd7 41.Kh2-+) 41.Re3 (41.Rc6 a4-+) 41...Bc4 42.g3 Nh3 43.Kh2 g4 44.R3e2 Be2 45.Re2 Rf2 46.Rf2 (46.Kh1-+) 46...Nf2 47.Kg2 a4 (better 47...Nh3 48.Kf1 a4 49.Ke2-+) 48.Kf2 a3 49.Ke3 a2 50.Ke4 a1Q 51.Kd5 Qa4 (51...Qg1 52.Kc6 Qg3 53.Kd7 Qd3 54.Kc7 Qb5 55.Kb7 g3 56.Kb8 g2 57.Kb7 g1Q 58.Kc7 Qgc5 59.Kb8 Qd7 60.Ka8 Qf8) 52.Kc6 Qa3 53.Kb6 Qg3 54.Kb7 Qe3 55.b6 Qb6! 56.Kb6 g3 57.Kc5 g2 58.Kc6 g1Q 59.Kc7 Qf1 60.Kc8 g5 61.Kb8 g4 (61...g4 62.Kb7 g3 63.Kb6 g2 64.Kc6 g1Q 65.Kb7 Qb5 66.Kc8 Qg4 67.Kd8 Qbd7) 0-1. black_bishop_88 (2525) - MnIgraqLek (2730), lichess.org, 2020. (=1.a3 e5 2.b4 a5 3.b5 d5 4.Bb2 f6 5.e3 c5)

    6.f4 Bd6 7.fe5+= fe5 8.Be5 Qe7 (8...Be5 9.Qh5 Double attack (9.Qh5 Decoy)) 9.Qh5 g6 10.Bd6 Qd6 11.Qh4 Nf6 (11...Qf6 12.Qf6 Nf6 13.Nf3+/-) 12.Nf3+/- 0-0 13.Be2 Nbd7 14.0-0 b6 (14...Ne5+/-) 15.d4 (15.Nc3 Ne5+/-) 15...c4 (15...Qe6!?=) 16.Nc3 Bb7 17.Rae1 (better 17.Nd2+/-) 17...Qa3=+ 18.Nd1 Rae8 19.Ng5 Qe7 (19...Re7 20.Nh3=+) 20.Bf3= Qg7 (better 20...a4=) 21.Nc3?? (better 21.Qh3 Qe7 22.Nc3=) 21...h6-+ 22.Nh3 (22.Rf2 hg5 23.Qg5 Qf7-/+) 22...g5 23.Qg3 g4 24.Qc7 Ba8 (24...gf3 25.Rf3 Ne4 26.Nf4 Nc3 27.Qb7-+) 25.Nf4 gf3 26.Rf3 Kh7 27.Rg3 Qf7 28.Rf1 Rg8 29.Nfd5 Rg3?? (29...Bd5 30.Nd5 Qd5 31.Rf6 Rg3 32.hg3 Re7 (32...Re3 33.Rd6 Qh5 34.Rd7 Kg8 35.g4+-) 33.Rb6 A) 33...Re3?? 34.Rd6 Qh5 35.Rd7 (worse 35.Qd7 Kg8 36.Qc8 Re8 37.Qc4 Kf8+-) 35...Kg8 36.Qc4 Kf8 37.g4+-; B) 33...Qg5-/+) 30.Nf6+- Qf6 (30...Nf6 31.Qf7 Rg7 32.Rf6 (32.Qf6?! Rg2 33.Kh1 Rg6 34.e4 Rf6 35.Rf6 Be4 36.Ne4 Re4=) 32...Rf7 33.Rf7 Kg6 34.Ra7 Re3 35.Na4+- (35.Ra8?! Rc3 36.Ra6 Rc2+=)) 31.Rf6 (31.Rf6 Rg2 32.Kf1+-) 1-0. GrandLapin (2250) - Toffy (2250), Rated Blitz game, lichess.org, 2016.

    6.f4 ef4 7.ef4 Bd6 8.Qf3 Ne7 9.Nc3 d4 10.Ne4 0-0 11.Bc4 Kh8 12.Ne2 Bf5 13.Nd6 Qd6 14.Qb7 Nd7 15.d3 Bg4 16.Rf1 Rfb8 17.Qe4 Re8 18.h3 Be2 19.Rf2 Ng6 20.Qc6 Bd3 21.Kd2 Qc6 22.bc6 Bc4 23.cd7 Red8 24.c3 Rd7 25.cd4 cd4 26.Rc1 Bf7 27.Rc5 Rb8 28.Kc1 d3 29.g3 Ne7 30.Rd2 a4 31.Bc3 Bb3 32.Bb4 Bc2 33.Kb2 Nd5 34.Rc4 Nb4 35.ab4 Rdb7 36.Kc3 h6 37.f5 Kh7 38.Rf2 a3 39.Rf1 Ra8 40.Ra1 a2 41.Kb2 Bb1 42.Rd4 Rab8 43.Kb3 Rb4 44.Rb4 Rb4 45.Kb4 d2 46.Kc3 0-1. pacal56 (2240) - mecker (2205), Rated Blitz game, lichess.org, 2014.

    6.Nh3 Bh3 7.Qh5 g6 8.Qh3 Bg7 9.Nc3 Ne7 10.Qf3 0-0? (10...f5 11.Be2=) 11.h4 (11.Nd5 Qd5 12.Qd5 Nd5+-) 11...d4? (better 11...f5=) 12.Bc4 Kh8 13.Na4 Nd7 14.h5 (worse 14.Qb7 Rb8 15.Qf3 f5+/-) 14...e4? (14...h6 15.hg6 Rb8 16.Qg4+-) 15.Qe4 (15.hg6!? h6 (15...ef3?? 16.Rh7) 16.Qf4 Ng8 17.Qe4 Qc7+-) 15...f5 16.Qb7 Ne5 17.Be2 Rb8 18.Qa7 Ra8 19.Qc5 Rc8 20.Qd4 (20.Qa7 de3 21.de3 Rc2+-) 20...Nf3 21.Bf3 Bd4 22.Bd4 (22.ed4?! Rc2 23.Bc3 Qe8 24.hg6 Ng6 25.Kd1 Qb5+/-) 22...Kg8 23.hg6 Ng6 (23...hg6 24.Rh8 Kf7 25.Rh7 Ke8 26.Bc5 Rc5 27.Nc5+-) 24.Nb6 Ne7 (24...Rc2 25.Bd5 Rf7 26.Bf7 Kf7 27.Rh7 Ke6 28.Kd1+-) 25.Nc8 Qc8 26.Kd1 Qc4 27.b6 f4 (27...Rc8 28.Rc1 Qb5 29.d3+-) 28.b7 Qb5 29.Kc1 fe3 30.fe3 (better 30.de3 Rf3 31.Rb1 Qb1 32.Kb1 Rf8+-) 30...Nf5 (30...Rf3 31.gf3 Qb7+-) 31.Rb1 Qa4 (31...Nd4 32.ed4 Qa4+-) 32.Bd5 (32.Bd5 Rf7 33.b8Q Qe8 34.Qe8) 1-0. FeegLood (2470) - erindreki (2215), lichess.org, 2015.

    6.Nh3 Nh6 7.d4 Bg4 8.Be2 Bh3 9.gh3 cd4 10.ed4=.

    6.c4 d4

    7.d3 b6 8.e4 g6 9.Nf3 Bh6 10.Be2 Ne7 11.Nbd2 Be6 12.h4 Nd7 13.h5 (13.Qc2 Qc7=) 13...g5 (13...Qc7!?=) 14.Nh2+= Qc7 (14...Bg7 15.Bg4 Bf7 16.Nhf1+=) 15.0-0 (15.Bg4 Bf7+/–) 15...0-0-0 (15...Bg7 16.Bg4 Bf7 17.Qf3+=) 16.a4 (16.Bg4 Bf7+=) 16...Rdf8 (16...Kb8 17.Re1+=) 17.Ng4+/– Bg4 (17...Ng8!?+/–) 18.Bg4+– Kb7 (18...Kb8 19.Be6+/–) 19.Be6 (19.Qf3 Rhg8+–) 19...Qd6 20.Qg4 Kc7 (20...Rd8 21.Rfe1+–) 21.Nf3 Ng8 (21...Rd8 22.Qh3+–) 22.Bc1 (22.Rad1 Re8 23.Bd5 Ne7+/–) 22...Bg7 (22...Re8 23.Bf5+/–) 23.Qh3 (23.Bd5 h6 24.Be6 Re8+/–) 23...Nh6 24.Re1 (24.Rd1!? Qe7 25.Nh2 Re8+/–) 24...Re8+/– 25.Bd5 Rhf8 (25...Nf8 26.Nh2+/–) 26.Qg3 (26.Qh2 Ng8+–) 26...Qe7 27.Kh2 (27.Ra2 Nf7+–) 27...Nf7 28.Bd2 (28.Ra2 Nd6+/–) 28...h6 29.Qh3 Nd6 30.Kg1 f5 31.ef5 Nf5 32.Nh2 Nh4 33.Ng4 Nf6? (33...Kb8!?+/–) 34.Re5+– Nd5?? (34...Qd8 35.Re8 Re8+–) 35.Re7 (35.Rd5?! Qf7 36.Qg3 Kb7+/–) 35...Ne7 36.f4! Nef5 (36...gf4 37.g3 Double attack (37.Qh4 Deflection; 37.g3 Decoy)) 37.fg5 hg5 (37...Re2 38.Bf4 Kb7 39.gh6 Rg2 40.Kh1 Bh6 41.Nh6 Rg7+–) 38.Bg5 Ne3 (38...Re3 39.Ne3 de3 40.Re1+–) 39.Qh4 Nc2 (39...Bh8 40.h6+–) 40.h6 Bh8 41.Rf1 Rf1 42.Kf1 Re1 43.Kf2 Rd1 44.Qg3 Kd7 45.Qf3 Re1 46.Qc6 1–0. Pamieci Krzysztofa P – napohybel, internet, 2016.

    7.d3 Be6 8.Qf3 de3 9.fe3 Qd7 10.Nc3 Bg4 11.Qg3 Bd6 12.Ne4 Bf8 13.Nf3 Bf5 14.Nf2 Bg6 15.Be2 Bd6 16.Qh4 Ne7 17.Ne4 Nf5 18.Qf2 0-0 19.0-0 Be7 20.Nc3 Qd8 21.Rad1 Nd7 22.a4 Qe8 23.Nd5+/– Rd8 24.d4 ed4 25.ed4 Nd4 26.Nd4 cd4 27.Bd4 Ba3 28.Rfe1 Bc2 29.Bg4 Qg6 30.Be6 Kh8 31.Rd2 Bb3 32.Qe3 Qg5 33.Rd3 Qe3 34.Ree3 Nc5? 35.Bc5 Bc5 36.Rb3 Rfe8 37.Kf1 Be3 38.Re3 Rd6 39.Bf7 Re3 40.Ne3 b6 41.Nd5 Rd7 42.Be8 Rd8 43.Bc6 Rb8 44.Kf2 Kg8 45.Ke3 Kf7 46.Kd4 Ke6 47.Nc7 Kf7 48.c5 g6 49.cb6 Ke7 50.Na6 Rb6 51.Kc5 Rb8 52.Nb8 Kd8 53.b6 f5 54.Kd6 Kc8 55.Na6 h6 56.b7 Kd8 57.b8R 1–0. NN – SuperForte 5 Mhz, 1993.

    7.Bd3 Nh6 8.Qc2 (8.Nf3 Bf5 9.Bf5 Nf5=) 8...g6 (8...f5 9.Nh3=) 9.Be4 Bg7 10.Bd5 Nd7 11.d3 Nb6 12.e4 Nd5 13.cd5 b6 14.Nd2 0-0 15.Nc4 Nf7 16.Ne2 Nd6 17.Nd6 Qd6 18.a4 f5 19.f3 Bh6 Black plans f4 20.Bc1 Bc1 21.Nc1 f4 22.Nb3 g5 23.h3 h5 24.Nd2 Rf7 25.Nc4 Qf6 26.0-0-0 Rg7 27.Kb2 Rb8 28.Kb3 Bd7 29.Qf2 Kf7 30.Rdg1 Ke7 31.g3 Kd8 (31...Rbg8 32.Kb2=) 32.h4 fg3? (32...g4 33.Rf1=) 33.Rg3 (better 33.Qg3!? g4 34.fg4 Bg4 35.Qe5 Qe5 36.Ne5+-) 33...g4+/- 34.Rf1 Rf7 35.Rg2 Kc7? (35...Qe7 36.Qg3 Rf3 37.Rf3 gf3+-) 36.fg4+- Qf2 37.Rgf2 (worse 37.Rff2 Rf2 38.Rf2 hg4+-) 37...Rf2 38.Rf2 Bg4 (38...hg4 39.Rf7 Re8 40.Kc2+-) 39.Ne5 Rg8 (39...Bd1 40.Kc4 Rd8 41.Nc6+-) 40.Rf7 (40.Ng4?! hg4 41.Kc4 g3+/-) 40...Kd6 (40...Kd8+-) 41.Ng4 (41.Nc4) 41...hg4+- 42.Rf6 Kd7 43.Rf7 (43.Rf7 Kd6 44.h5+/-; 43.Rb6? g3 44.Kc4 g2 45.Kc5 g1Q 46.Rd6 Ke7 47.Re6 Kf7-+) 1-0. Chess__Academy (2420) - zumpili (2420), Rated Bullet game, lichess.org, 2021.

    7.ed4 cd4 8.d3 Bd6 9.a4 (9.Be2 Nd7=) 9...Ne7 10.Be2 0-0 11.Nf3 Nd7 12.Nbd2 Nc5 13.0-0 b6 14.Nb3 Ng6 15.Nfd2 Nf4 (15...Nb3 16.Qb3 Be6 17.Rae1=+) 16.Nc5= Bc5 17.Bf3 Ra7 (17...Nd3? 18.Ba8 Nb2 19.Qb3+–) 18.Ne4 (18.Nb3=) 18...f5 (better 18...Bb4!?=) 19.Nc5+= bc5 20.Bc1 g5 21.Bf4 gf4 22.Bd5 Kh8 23.f3 (23.Re1 Re8+–) 23...Rf6 (23...Bb7 24.Qe1 Re8 25.Bb7 Rb7 26.Rf2+=) 24.Qe1+– Re7 25.Ra2 Rg6 26.Re2 Qc7 27.Qh4 Be6 28.Bc6 Bf7 (28...Reg7 29.Kh1+–) 29.Rfe1 (29.Rb1 Qd6+–) 29...Qd6 30.Qf2 Qf6 (30...Be8 31.Bd5+–) 31.Kh1 Be8 32.Bd5 Qd6 33.g3 (33.Qh4!?+–) 33...fg3+= 34.hg3 Rh6 35.Kg2 Bh5 (35...f4 36.g4+=) 36.Rh1+– Kg7 37.Ree1 (37.Rh4 Qf6+=) 37...Bf7 38.Rh6 Qh6 39.Bf7 Kf7 40.f4 (40.Re2=) 40...ef4 (better 40...e4!?=) 41.Re7 Ke7 42.Qf4 Qe6 43.Kf3 (43.Kf1 h6+–) 43...h5 (better 43...Kd8+=) 44.Qc7 Kf8 45.Qc5 Ke8 (45...Kf7 46.Qa7 Kf8 47.Qd4+–) 46.Qd4 Qe1 (46...Qg6+–) 47.Qe3 (47.Qe3 Qe3 48.Ke3+–) 1–0. Sapareva,Magdalena – Ignatov,Bojidar (1805), 187th Open MGU, 2017.

    7.ed4 cd4 8.Nf3 Bc5 9.d3 Ne7 10.g3 0-0 11.Bg2 Bg4 12.h3 Bh5 (12...Be6 13.Nbd2=) 13.g4 (13.0-0 Nd7=) 13...Bf7=+ 14.Nh4 Qc7 15.Qf3 Ra7 16.Nd2 Nd7 17.Ne4 b6 18.0-0 Ng6 19.Ng6 (19.Nc5? Nh4 (19...bc5?! 20.Ng6 Bg6 21.Qe2=; 19...Nc5?! 20.Ng6 Bg6 21.Rfd1-/+; 19...Qc5?! 20.Ng6 Bg6 21.Rad1=) 20.Qg3 Ng2 (20...Qc5?! 21.Qh4 Qd6 22.Be4=; 20...Nc5?! 21.Qh4 Nd3 22.Be4-+) 21.Nd7 Nf4 (21...Qd7?! 22.Kg2 Rc8 23.g5=) 22.Nf6 gf6-+) 19...Bg6 20.Qg3 (worse 20.Nc5 Nc5 (20...Qc5?! 21.Rad1=; 20...bc5?! 21.Qg3=) 21.Rfd1 Nd3 22.Bd4 ed4 23.Rd3 Bd3 24.Qd3 Qc5-/+) 20...f5 21.gf5 Rf5 22.Bc1 Nf6 23.Nf6 Rf6 24.Bg5 Rf8 25.Bd5 (25.f4 ef4 26.Bf4 Qc8+=) 25...Kh8= 26.f4 Bd6? (better 26...h6 27.Bh6 gh6 28.Qg6 Qg7=) 27.fe5+- Rf1 28.Rf1 (28.Kf1?! Be5 29.Qf3 Bd6=) 28...Be7? (better 28...Ba3 29.Rf6! Bh5+-) 29.Be7 Qe7 30.e6 Be8 31.c5! Qc5 (31...bc5 32.b6 Passed pawn; 31...Qc5 32.Qb8 Combination) 32.Qb8 (32.Qb8 Qe7 33.Rf7+-) 1-0. Adlai – Feibigail, internet, 2021.

    7.ed4 ed4 8.Nf3 Bd6 9.d3 Ne7 10.Nbd2 0-0 11.Be2 b6 12.0-0 Bb7 13.a4 (13.Re1 Re8=) 13...Ng6 14.Ne4 Bc7 15.Nfd2 (15.Qc2 f5 16.Ng3 Nh4=+) 15...f5 (15...Nf4!?-/+) 16.Ng3=+ Nh4 17.Nf3 Nd7 18.Nh4 Qh4 19.Bf3 Ra7 (19...Bf3!? 20.Qf3 Ne5=+) 20.Bb7= Rb7 21.Qf3 Rbb8 22.Qd5 (better is 22.Qc6 Qd8 23.Qd5 Rf7 24.Rae1=) 22...Kh8?? (better is 22...Rf7=) 23.Qd7+– Rbc8 24.Bc1 (24.Rfe1 Bg3 25.hg3 Qh6+–) 24...Bb8 (24...f4 25.Ne4+–) 25.Qd5 (25.Re1!? f4 26.Ne4 f3+–) 25...f4 26.Ne4 f3 27.Ng3 fg2 28.Qg2 Rf6 29.Bd2 Rg6 30.Rae1 Qf6 (31.f4 Qh4+–; 30...Rf8 31.Re4 Qf6 32.f4+–). b4_player (1835) – NN, GameColony.com, 2002.

    7.e4 f5 8.d3 Nf6 9.f3 Be6 10.Ne2 (10.Nh3 Be7=+) 10...Nbd7 (10...fe4 11.de4 Bc4 12.Nd2 Bb5 13.Qb3-/+) 11.Nd2 (11.ef5!? Bf5 12.Ng3=) 11...fe4-/+ 12.fe4 Be7 (12...Ng4 13.Bc1-/+) 13.h3 (better is 13.Ng3!?=+) 13...0-0-/+ 14.a4 Nb6 (14...Nh5 15.Nf3–+) 15.Qc2 Nh5 16.0-0-0 Rf2 17.g4 Nf4 18.Nf4 Rf4 19.Bg2 Bg5 20.Rdf1 Qe7 21.Kb1 Raf8 22.Rf4 Bf4 23.Rf1 g5 24.Nf3= h6 25.Bc1 Rf6 26.Kb2 Qf7 27.Bd2 Bc4 28.dc4 Nc4=+ 29.Kc1 Nd2 30.Nd2 Bd2 31.Kd2 Rf1 32.Bf1 Qf1 33.Qc4?? Qc4 34.Kd1 d3 35.Kd2 Qc2 36.Ke3 Qe2 0–1. slavisa99 – laksman5, Live Game Caissa's Web, 2004.

    7.g3 Nd7 8.Bg2=.

    7.g3 Be6 8.Qc2 Qd7 9.d3 Bd6 10.Bg2 f5 (10...Nh6!?=) 11.ed4+/– cd4 12.Nf3 Nf6 (better is 12...Qe7!?+/–) 13.0-0+– 0-0 14.Re1 Qc7 15.Nd4! Bc8 (15...ed4 16.Re6 Pinning (16.Re6 Deflection)) 16.Nf3 Nbd7 17.Nbd2 Ra7? (better is 17...Kh8+–) 18.d4 ed4 19.Nd4 (worse is 19.Bd4 Nc5+–) 19...Ne5 (19...Nc5 20.Nf5 Bf5 21.Qf5+–) 20.b6 (20.Nf5!? Nfg4 21.Bd5 Kh8 22.Nd6 Qd6+–) 20...Qb6 21.Nb5 (21.c5!? Qc5 (21...Bc5?? 22.Re5 Bd4 23.Qc4 Kh8 24.Bd4+–) 22.Qc5 Bc5 23.Re5 b6+–) 21...Neg4 (21...Nfg4 22.Re2 f4 23.Bd4+–) 22.Nb3 Ra8 (22...a4 23.N3d4 Ra6 24.Nd6 Qd6 25.c5+–) 23.Bd4 Qa6 24.h3 Nh6 25.Nd6 (25.Nc5!? Bc5 26.Bc5 Be6+–) 25...Qd6 26.Bc5 Qc7 27.Bf8 Kf8 28.Rad1 Bd7 29.Nd4 (29.Qd2 Nf7+–) 29...Kg8 (29...Rc8+–) 30.c5 (30.c5 Rc8 31.Qb3 Kh8 32.Bb7+–) 1–0. Jimenez Morales,Miguel (1970) – Nuevo Perez,A (2185), 40th Seville Open, 2015. (=1.a3 e5 2.b4 d5 3.Bb2 f6 4.e3 a5 5.b5 c5 6.c4 d4)

    7.Qh5 g6 8.Qf3 Ne7?? (better is 8...Nh6=) 9.Qf6+– Rg8 10.Qe5 Nd7 11.Qf4 Nf5 12.Nf3 Qe7 13.Bd3 Bh6 (13...Bg7 14.Bf5 gf5 15.Qf5+–) 14.Qe4 Rg7 15.0-0 Nf6 (15...Qe4 16.Be4 Nb6 17.Bd3+–) 16.Qe7 Re7 17.ed4 cd4 18.Nd4 (worse is 18.Bd4 Nd4 19.Nd4 Nh5+–) 18...Nd4 19.Bd4 Kf7 20.Be3 Bg7 21.Nc3 Bf5 22.Bf5 gf5 23.Rae1 Rae8 24.Rd1 h5 25.h3 h4 26.Bg5 Rc7 (26...Rd7 27.Bh4 Rd3 28.Bg5+–) 27.d3 (27.Bh4?! Rc4 28.Bf6 Bf6+–) 27...Nh7 (27...Rh8 28.Rfe1+–) 28.Bd2 (28.Nd5 Rc4 29.dc4 Ng5+–) 28...f4 (28...Nf6 29.Na4+–) 29.Nd5 (29.Bf4 Rd7 30.Ne4 Bf8+–) 29...Rd7 30.Ba5 Be5 (30...f3 31.gf3 Rg8 32.Kh2+–) 31.Bb4 (31.Rfe1 f3+–) 31...Rg8 (31...Nf6 32.d4 Bc7 33.Nf6 Kf6 34.d5+–) 32.Rfe1 Ng5 33.Kf1 f3 (33...Bd4+–) 34.Re5 fg2 35.Kg2 1–0. Heman,Frans – Van Bun,Marcel, Weijers OHK op, 2004.

    7.Qh5 g6 8.Qh4 Bg7 9.f4 de3 10.de3 ef4 11.Qf4 Nd7 12.Nc3 Ne7 13.Rd1 0-0 14.Nf3 Kh8 15.g3 b6 16.Bg2+/– Bb7 17.e4 Qe8 18.0-0 Rd8 19.Rfe1 Rf7 20.Re2 Nf8? 21.Rde1?? Ne6+= 22.Qc1 Nd4 23.Nd4+/– cd4 24.Nd5 d3 25.Re3 Bd5+= 26.ed5 Bh6 =. NN – SuperForte5, 1991.

    6.d4 ed4!?

    7.ed4 c4= 8.Bc1 Bf5 9.Nc3 Ne7 10.Be2 Kf7 11.Nf3=.

    7.ed4 c4= 8.Nc3 Be6 9.Nh3 Qd6 10.Qe2 Ne7 11.Nf4=.

    7.ed4 c4 8.Nc3 Ne7 9.g3 a4 10.Bg2 Ra5 11.Nh3 Be6 (11...Bd7 12.Qh5 g6 13.Qf3 Bh3 14.Bh3+=) 12.Qe2 Bf7 (12...Bd7 13.Nf4 Bb5 14.Bd5+/–) 13.Nf4 Kd7 14.0-0 Kc7? (better is 14...g5 15.Bh3 Ke8+/–) 15.Ncd5!!+– Nd5 Theme: Interference (15...Qd5 16.Bd5) 16.Qc4 Kb6 (16...Kd7 17.Nd5 Be6 18.Rae1+–) 17.Bd5 (17.Nd5?! Bd5 18.Bd5 Rb5+–) 17...Rb5 (17...Be8 18.Bc3 Rb5 19.Rab1+–) 18.Bf7 Rb2 19.Rfb1 Ba3 (19...Rb1 20.Rb1 Ka7 21.Qa4 Na6+–) 20.Rb2 Bb2 21.Qc5 Ka6 22.Ra4 1–0. Woelfelschneider,Peter – Aymans, 2009.

    7.ed4 c4= 8.Be2 Bd6 9.Bh5 g6 10.Bf3 Ne7 11.Ne2=.

    7.ed4 c4= 8.Nf3 Bd6 9.Be2 Ne7 10.a4 0-0 11.0-0=.

    7.ed4 c4= 8.Qh5 g6 9.Qf3 Qd6 10.Ne2 Ne7 11.Nbc3=.

    5.b5 Bc5

    6.c4 Ne7 7.cd5 Nd5 8.Nc3 Be6 9.Rc1 Nd7 10.Ne4 Be7 11.Nf3 0-0 12.Be2 N7b6 13.0-0 h6 14.Nc5 Bc8? (14...Bc5 15.Rc5 Rc8 16.h3=) 15.d3 (15.d4 ed4 16.Nd4 Qe8+/-) 15...Kh7? (15...Bc5 16.Rc5 Bg4 17.Qc2+=) 16.Nd2 Bd6 17.Bg4 (17.d4!?+/-) 17...f5 18.Bf3 Qe7 19.d4 e4 20.Be2 f4? (better 20...Rd8!?=) 21.Nde4+/- fe3 22.fe3 Ne3 23.Qd3 Nf1?? (better 23...Bh2 24.Kh2 Nf1 25.Rf1 Qh4 26.Kg1 Rf1 27.Bf1 Bf5+-) 24.Nf6 (24.Nf6 Kh8 25.Qh7) 1-0. pacalmisu (2435) - mecker (2360), Rated Blitz game, lichess.org, 2016.

    6.c4 Bf5 7.Nc3 Ne7 8.Qa4 d4=+ 9.Nce2 de3 10.de3= Bd3 11.Nf3 Nd7 12.Rd1 e4 13.Nd2 0-0 14.Nf4 Nb6 15.Qb3+/–.

    6.d3 Ne7 7.Nd2 a4 8.Ngf3= 0-0 9.Be2 Nd7 10.0-0 Nb6 11.h3 Ng6 12.Re1 Bd7 13.c4 dc4 14.dc4 Be6 15.Qc2 Rc8 16.Red1 Qe8 17.Ne4+= Be7 18.c5 Bb3=+ 19.Qc3 f5 20.Nf6? Bf6–+ 21.cb6 cb6 22.Qb4? Be7 23.Qe1-/+ Rc2 24.Rd2=+ Rd2 25.Qd2 Qd8 26.Kf1 Qd2 27.Nd2= Bf7 28.Bd1 Rd8 29.Ke1 Nh4 30.g3 Ng6 31.Ba4+= f4 32.ef4 ef4 33.g4 Bc5 34.Bc2 Bf2=+ 35.Ke2 Be3 36.Ne4?? Nh4 37.Rd1-/+ Bc4 38.Bd3 Bd3 39.Rd3= Rc8 40.Rc3 Rc3=+ 41.Bc3 Ng6 42.Nd6 Ne7 43.Nb7 Nd5 44.Bd2?? Bd2 45.Kd2=+ g5 46.Nd6 Kg7 47.Kd3 Kf6 48.Ke4 Ke6 49.Nf5? Nc3–+ 50.Kd4 Nb5 51.Kc4 Na3 52.Kb4 f3?? 53.Ka3=+ f2 54.Ne3 Ke5 55.Kb4 Ke4 56.Nf1 Kf3 57.Kb5 Kg2 58.Ne3 Kh3 59.Kb6 Kg3 60.Kc5 Kf3 61.Nf1?? Kg4 62.Kd4 h5 63.Ke3 Kh3 64.Kf2= g4 65.Kg1 h4 66.Nh2 Kg3 67.Ng4 h3 68.Nh2 Kf4 69.Kf2 Ke5 70.Kg3 Kd4 71.Kh3 ½–½. uno (1890) – knightonranden (1800), ICC, 2003.

    6.d4 Bb6? 7.Nf3 (7.de5!? Be6 8.Nh3+/–) 7...e4+= 8.Nfd2 Nh6 9.c4 c6 (9...Bg4!? 10.Qa4 dc4 11.Ne4 Qe7+/–) 10.c5+– Bc7 11.b6 Bf4? (better is 11...Bb6 12.cb6 Nd7+–) 12.ef4 Nf5 13.Be2 h5 (13...0-0 14.0-0+–) 14.Bh5 Kd7 15.0-0 Ke7 16.Re1 Nh4 17.Nc3 g6 18.Be2 f5 (18...Qf8 19.Nf1+–) 19.g3 Qg8 20.Bc1 (20.gh4!? Rh4 21.Bc1 Kd8+–) 20...g5 21.fg5 Qg5 (21...Ng6+–) 22.Nde4 Qg8 23.Nd6 Be6 24.Nb7 Nd7 (24...Ng6 25.Rb1+–) 25.Qa4 Nb8 26.Nd6 (better is 26.Bf4!? Ng6 27.Bb8 Rb8 28.Qc6 Nf4+–) 26...Kd7 27.b7 Ra7 28.Rb1 f4 (28...Ng6 29.Nc8 Qh7 30.h4 Rc8 31.bc8R Kc8 32.Rb6+–) 29.Bf4 Bh3 30.Nc8 Ra6 31.Bb8 Qf8 32.Bd6 Nf3 33.Bf3 Qf3 (33...Qd6 34.cd6 Rc8 35.Qc2 Be6 36.Qh7 Kd6 37.bc8N Bc8 38.Qe7) 34.Re7 Kd8 35.Bc7 1–0. Janek – Chris, internet, 2016.

    6.Nf3 Ne7 7.c4 (7.d4 ed4 8.Nd4 a4+=) 7...0-0 (7...d4 8.Nd4 Bd4 9.ed4 ed4 10.Qh5 g6 11.Qf3+=) 8.Be2 (8.d4!? ed4 9.Nd4+=) 8...d4 9.0-0?? (better is 9.ed4 ed4 10.d3=) 9...d3–+ 10.e4?! (10.Re1 de2 11.Qe2 e4–+) 10...de2 (10...Ng6!? 11.Ne1 de2 12.Qe2–+) 11.Qe2 Ng6 12.g3 (12.d4 ed4 13.Qd2 Rf7–+) 12...Bg4 13.Kg2 (13.Nc3–+) 13...f5 14.d3 (14.Qe1 fe4 15.Ng1–+) 14...fe4 15.de4 (15.Kg1 Bf3 16.Qe1 Qd7 17.Qe4 Be4–+) 15…Bf3 (16.Qf3 Rf3 17.Kf3 Qd3 18.Kg2 Qe4 19.Kg1 Qe2–+) 0–1. maxim – Caissa, Live Game Caissa's Web, 2004.

    6.Nf3 Bf5 7.c4 (7.d4 ed4 8.Nd4 Bd4 9.Bd4 Ne7+= 10.Be2 Qd6+= 0.47/9) 7...dc4 (7...d4 8.ed4 ed4 9.d3 Ne7 10.Nbd2 Bb6+= 0.28/8; 7...e4 8.Nh4 Be6 9.cd5 Qd5 10.Nc3 Qe5+/– 1.22/9) 8.Bc4 Bg4 (8...Bd3 9.Qb3 Bc4 10.Qc4 Bd6+= 0.56/9) 9.0-0 (9.d3 Nd7 10.Bd5 Rb8+= 0.28/8) 9...e4 10.h3 (10.Qc2 Qe7 11.Nd4 c6+/–) 10...Bf3 (10...Bh5= 0.19/8) 11.gf3 f5 12.f4 (12.fe4!? Qg5 13.Kh2 fe4 14.f4 ef3 15.Qf3 Bd6 16.Kh1+–) 12...Nf6+= 13.Kh2 Nbd7 14.Rg1 Qe7 15.Nc3 Bd6 16.Ne2 a4 17.Qc2 Bc5 18.Rg2 h6 19.Qc3 Bb6 20.Rag1 Rh7 21.Rg6 Ba5 22.Qc2 Bb6?? 23.Ng3+– Qc5 24.d3 ed3 25.Qd3 0-0-0 26.Nf5 Qf8?? 27.Qc2 Nc5 28.Nd4 Rd7 29.Nf3 Ba5 30.Ne5 Rd2 31.Qf5 Kb8?! 32.Bd4 Rf2 33.Kg3 Nce4 34.Kh4= Qe7 35.Rb1 Qa3?? 36.Nc6!+– bc6 37.bc6 Bb6 38.Rf6 Nf6 39.Ba6?? g5 40.Kg3+– Rf4?? 41.Qc8 Ka7 42.Qb7 1–0. NN – COMP, 1996.

    6.Nf3 Bg4 7.Be2 Bf3 8.Bf3+= Ne7 9.c4 c6 10.d4 ed4 11.ed4 Bd6 12.c5 Bc7 13.b6 Bf4 14.g3 Bh6 15.0-0 0-0 16.Qd3 Ng6 17.h4 (17.Nc3 f5+/-) 17...Re8 18.h5 Nf8 19.Bd1 Re6 20.Bc2 Nbd7 21.Nc3 Qe8 22.Bc1 (22.Qf3!?+=) 22...Qh5 23.Bh6 Qh6 (worse 23...gh6 24.Rfe1 Rae8 25.Re6 Re6 26.Kg2+=) 24.Rae1 Rae8 25.Re6 Re6 (25...Ne6 26.Kg2 Ndf8 27.Rh1=+) 26.Ne2 (26.Kg2 Qh5=) 26...Qg6 (26...Re7 27.Nf4=) 27.Nf4 (27.Qg6 Ng6 28.Nc1 Re8=) 27...Qd3=+ 28.Bd3 (28.Nd3? Re4-+) 28...Re7 29.Kg2 Kf7 30.Rh1 h6 31.g4 Ne6 32.Ne6 Re6 33.f4 Re3 34.Rh3 Rh3 35.Kh3 g5 36.f5 Kg7 (36...Ke8 37.Kg3=) 37.Be2 (37.Kg2 Kf8=) 37...Nf8 (37...Kf8 38.Kg3=) 38.Kg3 (38.Kg2 Kf7+=) 38...Kf7 39.Kf3 (39.Bd3+=) 39...Ke7 (better 39...Nd7!? 40.Bf1 Ke8+=) 40.Ke3 Kd7 41.Kd3 Kc8 42.Kc3 Nd7 43.Kb3 Nb8 44.Ka4 Nd7 45.Ka5 Kb8 46.Kb4 Nf8 47.a4 Nd7 48.a5 Nf8 (48...Kc8 49.a6 ba6 50.Ka5+-) 49.a6 (49.Bd1 Nd7+-) 49...ba6 50.Ba6 h5? (better 50...Nd7+-) 51.Be2 (better 51.gh5 Nd7 52.Be2+-) 51...hg4 (51...h4!?+=) 52.Bg4+/- Nh7 (52...Nd7 53.Kc3+/-) 53.Bh5 (53.Ka5 Nf8+/-) 53...Nf8 54.Bf7 (better 54.Kc3+/-) 54...Kb7?? (54...g4 55.Bh5 g3-+) 55.Be8 (better 55.Bd5 Nd7 56.Bg2 Nb6 57.cb6 Kb6 58.Kc4+-) 55...Ng6?? (better 55...g4 56.Bh5 g3-+) 56.Kc3 (56.fg6 f5 57.g7 g4 58.g8Q Ka6 59.Bc6 f4 60.Qc8) 56…Nf4-+ 0-1. Jurekszach (2235) - universe64 (2215), lichess.org, 2019.

    6.c4 d4

    7.Ne2 Qe7 8.Ng3 =.

    7.Ne2 Kf8 8.h4 (8.Nc1 Qe7=) 8...Ne7 9.g3 Bg4 10.Bh3 (10.Nd4 Bd4 (< 10...Bd1 11.Ne6 Kf7 12.Nd8 Rd8 13.Kd1+/–) 11.Qg4 Bb2=) 10...Bh3 11.Rh3 de3 12.fe3 (12.de3 Qd1 13.Kd1 Kf7=) 12...Qd3 13.Qc1 c6 14.a4 Bb4 15.Ba3 b6 16.Ra2 Nd7 17.Qc2 (17.Bb4 ab4 18.bc6 Nc5-/+) 17...Nc5-/+ 18.Kd1 (18.Qd3 Nd3 19.Kf1 cb5 20.cb5 Rc8-/+) 18...Qd7 19.Rh2 Nf5 20.Ke1?? (better is 20.Kc1 Nd3 21.Kd1-/+) 20...Ne3–+ 21.Qb2 (21.Qb3 Nd3 22.Qd3 Qd3 23.Bb4 ab4 24.Rb2 Nc4 25.Rb4 cb5 26.Rb5 Ra4 27.Nc1 Qg3 28.Rf2–+) 21…Nd3 0–1. excalibur – Caissa, Live Game Caissa's Web, 2004.

    7.g3 Ne7=+ 8.f4 (8.Qh5 g6 9.Qf3 0-0=+) 8...de3-/+ 9.fe5 fe5 (9...Bd4 10.Ra2 Bb2 11.Rb2-/+) 10.Be5 (10.Qh5 Ng6 11.Nf3 Nd7=+) 10...0-0 11.Bh3?? (better is 11.d4-/+) 11...Qd3–+ 12.Qe2 (12.Bg2 Rf2 (12...Qc4?! 13.Nf3–+) 13.de3 Qe3 14.Ne2 Qe5 (< 14...Rg2 15.Rf1 Bf5 16.Bf4–+) 15.Bd5 Kf8–+ (< 15...Nd5 16.Qd5 Qd5 17.cd5–+)) 12…Qe4 (13.Nf3 Rf3 (13...Qf3?! 14.Qf3 Rf3 15.Bc8 Nc8 16.Bc7–+) 14.Bc8 Nc8–+ (14...Qe5?! 15.Qf3 Nc8 16.Ra2–+)) 0–1. excalibur – Caissa, Live Game Caissa's Web, 2004.

    7.ed4 Bd4

    8.Nc3 Ne7 9.Nf3 0-0 10.Be2 Bf5 11.0-0 c5 12.d3 Nd7 13.Qc2 Ng6 14.g3 Bh3 15.Rfe1= Kh8 16.Nd5 Nb6 17.Bd4 cd4=+ 18.Nb6 Qb6 19.Nd2 Rac8 20.Bf3 Rc7 21.Ne4 Qb5!?-/+ 22.cb5 Rc2 23.Rac1 Rfc8 24.Rc2 Rc2 25.Nd6 b6 26.Nc4 Ra2 27.Bd1 Ra1 28.f3 Bf5–+ 29.Kf2? Bd3 30.Nb6 Ra3 31.Be2 Ra2 32.Nd5 Bb5 (32...Bb5 33.Nb6 d3–+) 0–1. anemone – Caissa, Live Game Caissa's Web, 2005.

    8.Nc3 Ne7 9.Nf3 0-0 10.Be2 Bf5 11.d3 Ng6 12.g3 Re8 13.0-0 Bh3 14.Re1= Ba7 15.a4 Bc5 16.Ne4 Bb4 17.Bc3 f5 18.Bb4? fe4-/+ 19.de4 ab4–+ 20.Qb3 c5 21.Rad1 Qe7 22.Rd5 b6 23.Red1 Rf8 24.Nh4 Nh4 (24...Nh4 25.gh4 Qh4–+) 0–1. companula – Caissa, Live Game Caissa's Web, 2005.

    8.Bd4 ed4 9.Qa4 Qe7 10.Kd1 Nh6 11.f3 0-0-/+ 12.g3 Re8 13.Kc1 Bf5 14.Bh3 Qe1–+ 15.Qd1 Bd3 16.Qe1 Re1 17.Kb2 a4 18.f4? Be4 (19.Be6 Kf8–+; 18...Bc4?! 19.Bg2 Ra5 20.Nf3 Rb5 21.Kc2–+) 0–1. excalibur – Caissa, Live Game Caissa's Web, 2004.

    8.Bd4 ed4 9.c5 Qd5=+ 10.Qe2 Kf8 11.Qc4=+ Qe5 12.Kd1 Be6 13.Qc1?? Bb3–+ (14.Qc2 Bc2 15.Kc2 d3 16.Bd3 Qa1–+) 0–1. excalibur – Caissa, Live Game Caissa's Web, 2004.

    8.Bd4 ed4 9.Bd3 Ne7 =.

    8.Bd4 ed4 9.Qe2 Ne7=+ 10.Qd3 0-0 11.Nf3 c5 12.a4 Re8-/+ 13.Be2 Bf5 14.Qb3 Ng6 15.g3?? d3 16.Nh4 Re2 17.Kf1 Qd4 18.Nf5 Qf2# 0–1. excalibur – Caissa, Live Game Caissa's Web, 2004.

    6.d4 ed4

    7.Bd4 Bd4 8.ed4 Ne7 9.Nf3 0-0 10.c4 Re8=+ 11.Nbd2?? Ng6–+ 12.Be2 Nf4 (13.Ng1 Bf5–+ (13...Ng2?! 14.Kf1 Nf4 15.Qb3–+)) 0–1. excalibur – Caissa, Live Game Caissa's Web, 2004.

    7.Bd4 Bd4 8.ed4 Ne7 9.Qh5 g6 10.Qf3=.

    >b>7.Bd4 Bd4 8.ed4 Bf5 9.Bd3 Ne7 (9...Bd3 10.Qd3 Nh6 11.Ne2+=) 10.Nf3 0-0 (10...Bd3 11.Qd3 0-0 12.0-0+=) 11.0-0+= Nd7 12.Re1 Nb6 13.Nc3 Qd6 (13...Bd3 14.Qd3 Qd6 15.Nd1+=) 14.Bf5+= Nf5 15.Qd3 Qd7 16.Nd2 Nd6 (16...Rae8 17.Re8 Re8 18.Nb3+=) 17.Nb3 Rfe8 18.Re8 Qe8 19.Nc5 c6 20.bc6 bc6 21.Ne2 (21.Qg3 Ndc4=) 21...Nbc4 (21...Ne4 22.Ne4 Qe4 23.Qe4 de4 24.Rb1=) 22.a4 (22.Nf4 Rb8=) 22...Nb2 23.Qf3 Ra7 24.Nf4 (24.Ng3 Re7=) 24...Re7 Threatening mate: Re1 25.Qc3 (25.Rf1 Ne4 26.Nb3 Na4-/+) 25...Nbc4 26.Rb1 g5 (26...f5 27.Nfd3=) 27.Nfd3 Re2 28.Re1 Nf5 (28...Re1 29.Ne1 Ne4 30.Ne4 Qe4 31.Nd3=) 29.Nb3 Exerts pressure on the isolated pawn (29.Rd1 Nfd6=) 29...Qe4 30.Kf1 (30.Re2 Qe2 31.h3= (31.Na5? Qd1 32.Qe1 Qe1 33.Ne1 Na5–+)) 30...Nd4+/– 31.Nd4 Nd2 32.Qd2 Rd2 33.Re4 de4 34.Ke1 e3 35.fe3 Rg2 36.h3 Rg3 37.Kf2 (37.Nc6 Re3 38.Kd2 Rh3 39.Na5 Rh2 40.Kd1 g4-/+) 37...Rh3+= 38.Nc6 Rh2 39.Kf3 Rc2 40.Na5 h5 41.Nb4 g4 42.Kg3 Rb2 (42...Rc1 43.Nd5 Kf7 44.e4+=) 43.Nd5 (43.Nac6 Kf7+=) 43...Kf7 44.Nc6 f5 45.Ne5 Kg7 (45...Ke6 46.Nd3 h4 47.Kh4 Rh2 48.Kg5 Kd5 49.Kf5–+) 46.Nc4 (46.a5 Rb5 47.e4 fe4–+ (47...Ra5?! 48.Nc4–+)) 46...Ra2+= 47.Nd6 (47.a5 Ra4 48.Ndb6 Ra1+=) 47...Kg6= 48.Ne7 (48.Nf4 Kg5 49.Ne6 Kf6=) 48...Kg5 ½–½. Rosner,Dirk – Gaut vel Hartman,Sergio, CiF, 2001.

    7.Bd4 Bd4 8.Qd4 Ne7 9.c4 Be6 10.Nc3 Nf5 11.Qf4 g5 12.Qf3 Nh4 13.Qh5 Bf7 14.Qg4 0-0 15.cd5 Nd7 16.Qg3 Nc5 17.Nf3 Nf3 18.gf3 Re8 19.Be2 Nb3 20.Rd1 Nc5 21.h4 Kh8 22.b6 cb6 23.hg5 fg5 24.Nb5 Rg8 25.e4 Qf6 26.e5 Qe7 27.Nd6 (better is 27.d6!? Qd7+–) 27...Bg6 28.e6 Qf6 29.Kf1 (29.f4 gf4 30.Qh4 Qh4 31.Rh4 Rad8+=) 29...Rgd8 30.Kg1 Kg8 31.Nc4 b5 32.Nb6 Qb2 33.Bf1 (33.Na8 Qe2 34.Rc1 Nd3+/–) 33...Qc2 (33...Qb3 34.Re1 Qa3 35.Qg5 (worse is 35.Na8 Ra8 36.Qg5 Qf3+–) 35...Qf3 36.Rh3+–) 34.Re1 (34.Re1 Rab8 35.e7+–) 1–0. orane – Caissa, internet, 2003.

    7.ed4 Bd6

    8.Nc3 Ne7 9.Bd3 h5 10.Qf3 Bg4 11.Qe3 0-0 12.h3 Bd7 13.0-0-0 c6 14.Nf3 Re8 15.Nh4? b6?? 16.Qf3+/– Kf8 17.Bf5 Bf5 18.Nf5 cb5 19.Nd6 Qd6= 20.Qh5 b4 21.ab4 ab4 22.Ne2 b3 23.c3 Ra2 24.Qh8 Kf7 25.Qh5 Ng6 26.f4 Rh8 27.Qg4 Rh4 28.Qc8? Nf4–+ 29.Nf4? Qf4 30.Kb1 Qe4 31.Kc1 Qc2# 0–1. slavisa99 – Caissa, Live Game Caissa's Web, 2004.

    8.Bd3 Ne7 =.

    8.Qe2 Ne7= 9.c4 0-0 10.c5 Re8 11.Qc2 Bf5 12.Bd3 Bd3 13.Qd3 Ng6 14.Kd1 Bf4 15.g3 Bh6 16.f3 Re3 17.Qc2 Qe8–+ 18.Qf2 Rd3 19.Kc2 Qb5 20.Bc3 Nc6 21.a4 Qc4 22.Kb2 Nd4 23.Bd4 Bc1# 0–1. VILLENEUVE – Caissa, Live Game Caissa's Web, 2004.

    8.Qh5 g6 9.Qd5?? Bb4!–+ 10.Nc3 Bc3 11.Bc3 Qd5 (12.h4 Bd7–+) 0–1. slavisa11 – Caissa, Live Game Caissa's Web, 2004.

    8.Bd3 Kf8

    9.c4 dc4 10.Bc4 h6 11.h3 Qe7 12.Ne2 Be6 13.d5 Bf5 14.0-0 Be4 15.Nbc3 Nd7 16.Re1 Ne5 17.Ba2 Nd3 18.Ng3 Bg3=+ 19.fg3 Ne1 20.Qe1 Qc5 21.Kh2 Bg6 22.Ne4? Qc2–+ 23.d6 Be4 24.Rc1 Qg2# (24...Qb2 25.Qe4 Qa2 26.Qb7=) 0–1. slavisa99 – Caissa, Live Game Caissa's Web, 2004.

    9.Nf3 Qe8 10.Qe2 Qe2 11.Be2 Bf5 12.c4 dc4 13.Bc4 Nd7 14.Nc3 Re8 15.Kd2 Bf4 16.Kd1 Nb6 17.Bb3 Ne7 18.Bc2 Nc4 19.Bf5 Nf5 20.Bc1 Bc1 21.Rc1 Na3 22.Re1 Rd8 23.Ke2 Re8?? 24.Kd3 Re1 25.Ne1 Nd6 26.Nd5 Nab5 27.Nc7 Na7 28.Nc2 Kf7 29.Nd5 Nc6 30.Nce3 a4 31.Ra1 b5 32.Nc7 Rd8 33.Ned5? Nf5 34.Re1 Nfd4 35.f4 a3 36.f5 Nf5 37.Kc3 Rd7 38.Kb3 Nfd4 39.Ka3 Nc2 40.Kb3 Ne1 0–1. slavisa99 – Caissa, Live Game Caissa's Web, 2004.

    9.Ne2 c5

    10.c4 Be6 11.cd5 Bd5 12.0-0 c4+/– 13.Bc2 Ne7 14.Nbc3 Qd7 15.Nd5 Nd5 16.Nc3 Nc3 17.Bc3 Qb5 18.Rb1 Qd7 19.Qf3 Nc6 20.Ba4 Qc7?? 21.Bb5 Na7 22.Ba4 Rb8 23.Bc2 Bh2 24.Kh1 Bd6 25.Qh5 Nc6 26.Rfe1 Qf7 27.Qb5 g5 28.d5 Qh5-/+ 29.Kg1 Qh2 30.Kf1 Qh1 31.Ke2 Qg2 32.dc6 Re8 33.Kd2 Bf4 34.Kd1 Qf3 35.Re2 Qe2# 0–1. slavisa99 – Caissa, Live Game Caissa's Web, 2004.

    10.c4 Be6 11.cd5 Bd5 12.0-0 c4+/– 13.Bc2 Ne7 14.Nbc3 Qd7 15.Nd5 Nd5 16.Nc3 Nc3 17.Bc3 Qb5 18.Rb1 Qd7 19.Qf3 Nc6 20.Ba4 Qc7?? 21.Bb5 Na7 22.Ba4 Rb8 23.Qh5 b5 24.Bc2 b4 25.Bd2 Nb5 26.Bh6?? Na3 27.Ba4 Nb1 28.Re1 gh6 29.Qh6 Qg7 30.Qh5 Qg5 31.Re8 Kg7 32.Qg5 fg5 0–1. slavisa99 – Caissa, Live Game Caissa's Web, 2004.

    10.c4 Be6 11.cd5+– Bd5 12.0-0 c4+/– 13.Bc2 Ne7 14.Nbc3 Qd7 15.Nd5 Nd5 16.Nc3 Nc3 17.Bc3 Qb5 18.Rb1 Qd7 19.Qf3 Nc6 20.Ba4 Qc7?? 21.Bb5 Na7 22.Ba4 Rb8 23.Qd5 Bh2 24.Kh1 b5 25.Bc2?? Rd8–+ 26.Qh5 Bd6 27.Rfe1 h6 28.Bg6 Ba3 29.Re6 Kg8 30.Rbe1 Bf8?? Ba5!+– Qd7 32.Bd8 b4 33.Re8 f5 34.Rf8! Kf8 35.Re8 Qe8 36.Be8 g6 37.Qg6 f4 38.Qf7# 1–0. slavisa99 – Caissa, Live Game Caissa's Web, 2004.

    10.c4 Be6 11.cd5 Bd5 12.0-0 c4+/– 13.Bc2 Ne7 14.Nbc3 Qd7 15.Nd5 Nd5 16.Nc3 Nc3 17.Bc3 Qb5 18.Rb1 Qd7 19.Qf3 Nc6 20.Ba4 Qc7?? 21.Qh5 Ne7 22.Bb5 Ba3 23.Rfe1 Bd6= 24.Re6 Ng6 25.Rbe1 Be7 26.d5 Qc5–+ 27.Re7? Ne7 (28.Rb1 b6–+ (28...Nd5?! 29.Ba4 Qd6 30.Rb7–+); 27...Qb5 28.Rc7 a4 29.Qf5+–) 0–1. slavisa99 – Caissa, Live Game Caissa's Web, 2004.

    10.c4 Be6 11.cd5+– Bd5 12.0-0 c4+/– 13.Bc2 Ne7 14.Nbc3 Qd7 15.Nd5 Nd5 16.Nc3 Nc3 17.Bc3 Qb5 18.Rb1 Qd7 19.Qf3 Nc6 20.Rfe1 Qf7 21.Be4 Qc7?? 22.Bd5 Rd8+= 23.Bc4 Nd4 24.Bd4 Bh2 25.Kh1 Rd4 26.Bb5 Be5 27.Rec1 Qb8 28.Bc6 b6 29.Rc5 Rh4 30.Kg1 Bh2 31.Kf1 Be5 32.g3 Rb4 33.Rb4 ab4 34.Rb5 ba3 35.Qb3 Qa7 36.Rb6?? a2–+ 37.Qb4 Qe7 38.Rb8 Bb8 39.Qb8 Kf7 40.Bd5 Kg6 41.Qf4 a1Q 42.Kg2 Qd7 43.Qe4 f5 44.Qc4 Rc8 0–1. slavisa99 – Caissa, Live Game Caissa's Web, 2004.

    10.c4 Ne7!? +/–.

    10.dc5 Bc5 11.0-0 Ne7 12.c4 dc4 13.Bc4 Qc7 14.Nd2 Nd7 15.Rc1 Ne5 16.Be5 Qe5 17.Nf3 Qd6 18.Qb3 a4 19.Qa2 Bg4 20.Rfd1 Qb6 21.Nfd4 Bd4 22.Rd4?? Be2–+ 23.Qe2 Qd4 24.Re1? Qd6 25.Rd1 Qe5 26.Qf3 Rc8 27.Ba2 Qb5 28.Qe4 Qc6 29.Qb4 h6 30.Re1 Rc7 31.Qd4 Qd7 32.Qe4 Rc5 33.Be6 Qd2 34.Bc4 Re5 35.Qe5 fe5 36.Re5 Qd4 37.Bd5 Qd1 38.Re1 Qe1 (38...Nd5?! 39.Rd1 Nf6 40.Rd8 Ne8 41.Rb8–+; 38...Qd5 39.g3–+) 0–1. slavisa99 – Caissa, Live Game Caissa's Web, 2004.

    10.dc5 Bc5 11.0-0 Ne7 12.Bd4 b6 13.Bc5 bc5 14.c4 Bg4 15.f3 Bd7 16.Nf4 Qc7 17.Qc1 Qe5 18.Nc3 dc4 19.Bc4?? Qd4-/+ 20.Kh1 Qc4 21.Re1 Nf5 22.Qd2 Qd4 23.Qc2?? Qf4 24.Rad1 Nd4 25.Qa2 Qf5 26.Nd5 Be6 27.Re6 Qe6 28.b6 Nd7 29.Qc4 Rb8 30.Qc5 Nc5 31.Rd4 Qe1# 0–1. slavisa99 – Caissa, Live Game Caissa's Web, 2004.

    5.b5 c6

    6.a4 Bd6 7.c4 Ne7 8.Nf3 0-0 9.Be2 Be6 10.Qc2 Nd7 11.0-0 cb5 12.cb5 Rc8 13.Qb3 Nc5 14.Qa2 Qd7 15.d4 Ne4 16.Nfd2?? (better is 16.de5 d4 17.ed6 Ba2 18.de7-/+) 16...Nd2–+ 17.Nd2 Rc2 18.Rfd1 Bb4 19.Qb3 Rd2 20.Rd2 Bd2 21.b6 (21.Rd1 Bb4 22.de5 fe5 23.Be5 Ng6–+) 21...e4 22.Ba3 Rc8 23.Bb5 Nc6 24.Ra2 Bb4 25.g3 (25.Rc2 Ba3 26.Qa3 Qd8–+) 25...Ba3 26.Qa3 Bg4 27.Rc2 h5 (27...Qe6 28.Qc1 Ne7 29.Rc8 Nc8 30.Qc5–+) 28.Qc3 (28.Qc1 Bf3–+) 28...Qd8 29.Qd2 Qb6 30.h4 Nb4 31.Rc8 Bc8 32.f3 (32.Qc3 Bg4–+) 32...ef3 33.Qc1 Bf5 34.Be8 (34.Qf1 Be4 35.Qc1–+) 34...f2! 35.Kf1 (35.Kf2 Nd3 Double attack) 35...Bh3 36.Kf2 Nd3 0–1. Rush,Bradley – Alvarez Castillo,Hector (1990), OP–2011–0-01562, 2011.

    6.c4 cb5 7.cb5 b6 8.Nf3 Bc5 9.d4 ed4 10.Nd4 Bd4 11.Bd4 Ne7 12.Bd3 Nd7 13.0-0 Kf8 (13...Nc5 14.Bc2+–) 14.Nc3+– Kf7 (14...Nc5 15.Bc2+–) 15.Be2 (15.Qh5 g6 16.Qf3 Rf8+–) 15...Re8 16.Bf3 Kg8 (16...Ne5!?+–) 17.Nd5+– Nd5?? (better 17...Ra7+–) 18.Bd5 Kf8 19.Ba8 Ne5 (19...h6 20.Qc2+–) 20.Be5 Re5 (20...Qd1 21.Rfd1 Re5 22.Rd8 Re8+–) 21.Qd8 Kf7 22.Qc8 Re8 23.Bd5 Kf8 (23...Kg6 24.Qe8 Kg5 25.f4 Kh6 26.g4 g5 27.Qf8 Kg6 28.f5) 24.Qd7 Re7 25.Qd8 Re8 26.Qd6 Re7 27.Rac1 g6 28.Rc8 (28.Qf6 Ke8 29.Rc8 Kd7 30.Qc6) 28...Kg7 29.Rg8 Kh6 30.Qf4 g5 31.Qf6 Kh5 32.Qg5 1–0. BeepBeepImAJeep – Melonartha (1625), lichess.org, 2018.

    6.d4 ed4 7.Bd4 c5+=.

    6.Nf3 c5 7.Be2 (7.d4 e4 8.Nfd2 c4=) 7...Bd7 (7...e4 8.Ng1=) 8.0-0 (8.Nc3 Be6=) 8...b6 (8...Bd6 9.d4 e4 10.Nfd2=) 9.c4+= d4 (9...e4 10.Ne1 Bf5 11.f3 dc4 12.Bc4+/–) 10.d3 (10.Bd3 Bd6+/–) 10...Ne7 (10...Nh6 11.Bc1+=) 11.Nh4 (11.Ne1 Ra7+=) 11...g6 12.ed4 cd4 13.Nd2 (13.f4 Bh6 14.Bf3 Ra7 15.fe5 fe5+=) 13...Bg7 (13...Bh6 14.Re1+=) 14.f4 (14.Bf3 Ra7=) 14...0-0 15.fe5 fe5 16.Ndf3 (16.Bf3 Ra7 17.Be4 Bf6+=) 16...Nf5 (16...e4 17.Nd4 g5 18.Qd2 gh4 19.de4=) 17.Nf5 Bf5 18.Qd2 (18.Bc1 Nd7=) 18...Nd7 19.Ng5 (19.a4 Nc5 20.Ba3 Rc8=) 19...Nc5+= 20.Rae1 h6 (20...Nb3 21.Qd1 Qg5 22.Qb3-/+) 21.Nf3= Qc7 (21...Rc8 22.g4 Be6 23.Kg2+=) 22.Nh4 Rae8 (22...e4 23.Nf5 gf5 24.Kh1=) 23.g4+= Qe7 (23...Be6 24.Ng6 Rf1 25.Rf1=) 24.Nf5+/– (24.Rf5 Qh4 (24...gf5?! 25.Nf5 Qg5 26.Qg5 hg5 27.Rd1+=) 25.Rf8 Rf8-/+ (25...Kf8?! 26.Rf1 Kg8 27.Bf3=; 25...Bf8?! 26.Rf1+=)) 24...gf5 25.gf5 Qg5 (25...Qh4!?+/–) 26.Qg5 hg5 27.Bc1 (27.Bh5 Rd8 28.Rf3 Rd6+/–) 27...Bf6 28.Rf2 (28.Rd1 Kg7+/–) 28...Kf7 (28...e4!? 29.Rd1 ed3+=) 29.Rg2 Ke7 (29...Rh8 30.Bg5 Bg5 31.Rg5+/–) 30.Bg5 Rg8 (30...Bg5!? 31.Rg5 Rg8+/–) 31.h4+– Rg7 32.Bf6 (32.Bf1 Kf7 33.Rg3+/–) 32...Kf6+/– 33.Rg7 Kg7 34.h5 (34.Kh2 Kf6 35.Rg1 Kf5+/–) 34...Kf6 35.Rf1 Rg8 (35...e4 36.de4 Re4 37.Bf3+/–) 36.Kh2 Rg5 (36...Re8 37.Rg1 Kf5 38.Rg6+/–) 37.h6+– Rg8 38.Rg1 Rh8 (38...Rb8 39.Kh3+/–) 39.Rg6 Kf5 40.Rb6 e4 (40...Kg5 41.Kg3 Rh6 42.Rh6 Kh6 43.b6+–) 41.de4 Ne4 (41...Ke4 42.Rd6+–) 42.Bd3 Ke5 43.Be4 Ke4 44.Re6 (44.Rg6 d3 45.Rd6 Ke3+–) 44...Kd3 45.c5 (45.Kg3 Kc4 46.b6 Rh7+–) 45...Kc4 46.c6 Kb5 (46...Kd5 47.Re1 Rh6 48.Kg3+–) 47.c7 d3 (47...Kc5 48.Kg3 d3+–) 48.Rd6 Kc5 (48...d2 49.Kg3 (49.Rd2?! Rh6 50.Kg3 Rc6=) 49...Rg8 50.Kf4 Rf8 51.Ke3+–) 49.Rd8 Rh6 50.Kg3 Rc6 51.c8Q Rc8 52.Rc8 Kd4 53.Kf3 d2 54.Ke2 1–0. Wall,Bill – MaskedBishop, internet, 2004.

    6.Nf3 Bd6 7.bc6 Nc6 8.Nc3=.

    5.b5 Bd6

    6.c4 c6 7.Nc3 Ne7 8.Qb3 Be6 9.Nf3 Nd7 10.cd5 cd5 11.Rc1 Nc5 12.Qc2 a4 13.d4 Nd3 14.Ke2 f5 15.h3 ed4 16.ed4 Ng8 17.Rd1 Ne1 18.Qd2 Ra5 19.Nd5 Bb8 Kd3 g5+ 20.Qc1 Nh6 21.Nf6 Bf4+ Nxe1+ Bd5 Qc2+ Bg3 Ke2+ Qc7 Normal 0-1. pacalmisu (2390) - HawaiianDragon (2405), Rated Blitz game, lichess.org, 2016.

    6.c4 c6 7.bc6 bc6 (worse is 7...Nc6 8.cd5 Nce7 9.Bb5 Bd7 10.Bd7 Qd7 11.e4+/–) 8.cd5 cd5 9.Nf3 Nh6 (9...Ne7!?+=) 10.Nc3 Be6 11.Bb5 Nd7 12.0-0 Rb8 13.a4 0-0 14.Ba3 Ba3 15.Ra3 Nc5 (15...Qe7 16.Ra1+=) 16.Ra1 (16.d4 Nb7+=) 16...d4 17.ed4 ed4 18.Ne2 d3 19.Nf4 Bb3 20.Qc1 Rc8 (20...Qd6 21.Qc3 Qf4 22.Qc5=) 21.Bc4 (21.Qa3!?+=) 21...Kh8 22.Bb5? (better is 22.Qc3!? Bc4 23.Qc4=) 22...Qd6 23.Nh3 (23.Nh5 Qd5 24.Ng3 Na4-/+) 23...Bd5 24.Qa3?? (better is 24.Qc3–+) 24...Ng4 0–1. Fournier,Frederic (1770) – guest39196 (1885), 5 min + 0s chess16.com, 2008.

    6.c4 Be6 7.Qc2 Ne7?? 8.c5+– 0-0 9.cd6 cd6 10.Nf3 Nd7 11.d4 Qb6 12.a4 Rac8 13.Nc3 Bf5 14.Qb3 Be6 15.Be2 Qd8 16.0-0 b6 17.e4 Qe8 18.Nd5 Nd5 19.ed5 Bf7 20.de5 de5 21.Bc4 Nc5 22.Qa2 Qd7 23.Rad1 Qd6 24.Ba3 Rc7 25.Nd2 Ra8 26.Ne4! Qd8 27.d6 Rd7 28.Bf7 Rf7 29.Bc5 bc5 30.Nc5 Rc8 31.Qd5 (31.Qd5 Rc5 32.Qc5+–) 1–0. RageofKlugman – jammboy, ChessWorld.net, 2006.

    6.c4 Ne7 7.Nf3 e4 8.Nd4 c5 9.bc6 bc6 10.cd5 Qb6 11.Bc3 cd5 12.d3 f5 13.de4 fe4 (13...de4? 14.Nb5 Bc5 15.Bg7+–) 14.Bb5 Nd7 15.Ne6 (better is 15.Qh5 g6 16.Qh6+=) 15...Rg8?? (15...Qb5 16.Ng7 Kf8 17.Ne6 Kg8+/–) 16.Ba4 Kf7 17.Ng5 Kg6 18.Ne4 de4 19.Qg4 Kf7 20.Bd7 Bd7 21.Qd7 Qc5 22.0-0 Rab8 23.Bd4 Qd5 24.Qg4 Qf5 25.f3 Qg4 26.fg4 Ke6 27.Nc3 Rb3 28.Ne4 Ba3 29.Ng5 Kd5 30.Nh7 a4 31.Rf7 Nc6 32.Bg7 Re3 33.Nf6 Ke6 34.Rc7 Rg7 35.Rc6 Bd6 36.Ra4 Kf6 37.Rd6 Ke5 38.Rb6 Rc3 39.h4 Rc5 40.g5 Rh7 41.g6 Rh8 42.Rg4 (42…Rc2 43.Rg5 Kd4 44.h5+–) 1–0. LUPES – ETC_Chess, playchess.de, 2003.

    6.c4 Ne7 7.Nf3 e4 8.Nd4 Be5 (8...c5 9.bc6 bc6 10.Nc3=) 9.cd5 0-0 10.Qc2 f5 11.Ne6 (11.Bc4 Kh8+=) 11...Be6= 12.de6 The passed pawn on e6 will quickly become a dangerous weapon 12...Bb2 13.Qb2 c6 14.a4 (14.Nc3 Qd6+=) 14...Qd5= 15.Qa2 Qe5 16.Bc4 Rf6 17.0-0 Rh6 The mate threat is Qxh2 18.h3 Qf6 (18...Rg6 19.Nc3+=) 19.Qa3 Nd5 (19...cb5!? 20.ab5 Rg6+/–) 20.Nc3 Qe6? (better is 20...Ne7+–) 21.bc6 bc6 22.Qb3 Nd7 (22...Kh8 23.Qb7 (23.Bd5?! cd5 24.d4 ed3+/–) 23...Qe8 24.Qa8+–) 23.Nd5 (23.Bd5?! cd5 24.Qd5 Qd5 25.Nd5 Re8+=) 23...Nc5 24.Qa2 Kh8 25.Nc7 Qc8 26.Na8 Qa8 27.Qa3 Rf6 (27...Nd7+–) 28.Qc5 Qd8 29.Rab1 h6 30.Rb7 Rf8 (30...Kh7 31.Qa7 Rg6 32.Rb8+–) 31.Rd7! Qf6 (31...Qd7 Theme: Deflection from f8 32.Qf8) 32.Rb1 (better is 32.Rd6 Kh7 33.Rf6 Rf6+–) 32...Rd8 33.Rd8 Qd8 34.Qe5 Kh7 (34...c5 35.Rb8 Qc8 36.Rc8 Kh7 37.Qf5 g6 38.Qd7) 35.Qf5 Kh8 White now must not overlook the idea Qe8 36.Qe4 1–0. Woelfelschneider,Peter – Winkler, 2009.

    6.c4 Ne7 7.Qh5 g6 8.Qf3 Bf5 9.d3 (9.cd5 e4 10.Qe2 Nd5=) 9...e4 10.Qd1 ed3 11.Bd3 Bd3 12.Qd3 Be5 13.Nc3 c6 14.Nf3 0-0 15.Ne5 fe5 16.Rd1 d4 (16...cb5 17.cd5 b4 18.ab4 ab4 19.Nb5+/–) 17.Ne4 Nf5 18.ed4 ed4 19.0-0 (19.Bd4 Nd4 20.Qd4 Qe8+/–) 19...Qe7 20.Bd4 (better is 20.Rfe1!?+/–) 20...Rd8= 21.Nf6 Kf7 (21...Kf8 22.Nh7 Qh7 23.Bc5 Nd6 24.Bd6 Kg8 25.Rfe1+–) 22.Rfe1 Rd4?? (22...Qd6 23.Re4 Nd4–+) 23.Re7+– Ke7 24.Ng8 Kf8 25.Qe2 Kg8?? (25...Rd1 26.Qd1 Kg8 27.Qd8 Kf7 28.Qc7 Nd7 29.Qd7 Ne7 30.Qb7 Rd8+–) 26.Qe6+– (26.Qe6 Kg7 27.Rd4 Nd4 28.Qe5 Kh6 29.Qd4+–) 1–0. Schirmer,Michael – Rosner,Dirk, corr SOK–92–81, 1992.

    6.Nf3 Ne7 7.c4 e4 8.Nd4 c5 9.bc6 bc6 10.Nc3 Be5 11.f4 (11.cd5 Bd4 12.ed4 Nd5 13.Ne4 0-0=) 11...Bd4 12.ed4 0-0 13.cd5 (13.d3 e3=) 13...cd5 (13...Nd5 14.Ne4 Nf4 15.Qf3=) 14.d3 Qb6 (14...f5 15.Be2=+) 15.Na4 Qd6 16.g3 (16.de4 Qf4 17.Qf3 Qe4 18.Qe4 de4=) 16...e3=+ 17.Nc5 (17.Qf3 Nf5=+) 17...Nd7 (17...Na6 18.Qc1=+) 18.Nd7 (18.Qc1 Rb8=+) 18...Bd7 19.Bg2 Rab8 20.Bc1=+ Nf5 21.0-0 Qe6 22.Re1 Rfc8 23.g4-/+ Nd4 24.Be3 Nc2= 25.Ba7?? Ne1–+ 26.Bb8?? Ng2 27.Ba7 Nf4 0–1. dockser – Zippy, ICS game, 1994.

    6.Nf3 Ne7 7.c4 e4 8.Nd4 c5 9.bc6 bc6 10.cd5 cd5 (10...Qb6!? 11.Qc2 cd5=) 11.Bb5+= Kf8 (11...Kf7 12.d3+=) 12.0-0 (12.d3 Kf7+=) 12...Be5 13.d3 Qb6 14.a4 Nbc6 (14...Bd7 15.Qc2+=) 15.de4 (15.Nc6 Bb2 16.Ra2 Nc6 17.Rb2 Nb4 18.de4 de4+/–) 15...de4 16.Nc3 (better is 16.Bc6!? Nc6 17.Nc6 Qc6 18.Be5 fe5 19.Nd2+/–) 16...Nd4= 17.ed4 Qd4 18.Qh5 Be6 (18...g6 19.Qh6 Kf7 20.Rfb1=+) 19.Rad1?? (better is 19.Rab1=) 19…Qb4–+ (20.Qe2 Bc3 21.Bc3 Qc3 22.Qe4 Kf7–+) 0–1. willis – Zippy, ICS game, 1994.

    6.Nf3 Ne7=+ 7.c4 Bg4 8.Be2 Nd7 9.d4 e4 10.Ng1 Be2 11.Ne2 c6 12.c5 Bc7 13.b6 Bb8 14.0-0 0-0 15.Nd2 Ng6 16.g3 f5 17.Qc2 Nf6 18.Rad1 Qe7 19.Nc3 h6 20.Nb3 Ra6 21.a4 Rd8 22.f3 Rf8 23.Rf2 Ra8 24.fe4 fe4 25.Rdf1+= Qd7 26.Qd1 Qh3 27.Qe2 Ne7 28.Nb1 Kh7 29.Qd2 Rc8 30.Rf6 gf6= 31.Rf6 Kg7 32.Qf2 Qh5 33.Nc3 Ng8 34.Rf5 Qg6 35.Qf1 Nf6 36.Nd2?? Ng4–+ 37.Nd5 cd5 38.Rd5 Qc6?? 39.Rg5!+/– hg5 40.d5 Qf6 41.Bf6 Nf6 42.Nb3 Nd5 43.Qf5+– Ne7 44.Qg5 Ng6? 45.h4 Re8? 46.h5 Re6 47.hg6 Rg6 48.Qe7 Kh6 49.Qb7 Rg3 50.Kf2 Rf3 51.Ke2 Bf4 52.Qa8 Re3 53.Kd1 Be5 54.Nd2 Kg5 55.c6 Bg3 56.c7 Re1 1–0. NN – GrandMasterChess 80286, 1992.

    6.Nf3 Ne7 7.Be2 0-0 =.

    6.Nf3 Bf5 7.Be2 Ne7 8.c4 Nd7 9.Qb3 Nc5-/+ 10.Qa2 Bc2 11.Nc3 Bb3 12.Qb1 dc4 13.0-0 0-0 14.Ne4 Qd7 15.d4 cd3 16.Nc5=+ Bc5 17.Bd3 f5 18.Be5 Bd5 19.e4 fe4= 20.Be4 Be4 21.Qe4 Qb5 22.Qg4 Ng6 23.Bc7 Qd3 24.a4 Qe2 25.Rae1 Qc2 26.Be5 Rad8 27.h3 Rd3 28.Re4 Ne5= 29.Re5 b6?? 30.Ne1+– Bf2? 31.Kh2 Qc3? 32.Qe6 Kh8 33.Rf2! Rh3 34.Kg1 Qd4 1–0. NN – GrandMasterChess 80, 1992.

    6.Nf3 Bg4 7.Be2 Ne7 8.0-0 Nd7 9.d3 0-0 10.c4 c6 11.a4 cb5 12.cb5 Rc8 13.Nbd2 Bb4 14.Nd4 Be2 15.Ne2 Qc7 16.Rc1 Qd6 17.Nc3 Rc7 18.d4 ed4 19.ed4 Nb6 20.Na2 Rfc8 21.Rc7 Rc7 22.Nf3 Rc4 23.Qb3 Nf5 24.Ra1 Qc7 25.Rc1 Rc1 26.Bc1 Qc4 27.Qc4 dc4 28.Nb4 ab4 29.a5 c3 1–0. Chatterjee – Coltharp,Cameron, email 4AMM–F, 1998.

    5.b5 Be6

    6.Nc3 Bd6 7.Nf3 (7.Qh5!? g6 8.Qf3+=) 7...Nd7+= 8.d4 (8.g3 Ne7+=) 8...e4-/+ 9.Nd2 c5 (9...Ne7 10.Na4+=) 10.bc6 (10.Nb3!?=) 10...bc6-/+ 11.Na4 Nh6 12.c4 0-0 13.cd5 cd5 (worse is 13...Bd5 14.Nc3 f5 15.Be2=) 14.Nb3 Bg4 (14...Rb8 15.Rc1-/+) 15.Be2+= Be2 16.Qe2 Rb8 17.Nbc5 Nb6 18.Ne6 (18.Rc1!?+=) 18...Qc8-/+ 19.Nb6 (19.Nf8?? Na4 20.Rc1 Qb7–+) 19...Qe6 20.Na4 Rfc8 21.0-0 Rc4 22.Nc3 Qg4 23.Qg4 (23.f3!? ef3 24.Rf3–+) 23...Ng4–+ 24.Nd1 (24.Rfb1 Bh2 25.Kh1 Bd6 26.Nd5 Rc2–+) 24...Bh2 (24...Nh2 25.Re1 Rb3 26.Re2–+) 25.Kh1 Bd6 26.f3 Nh2 (26...Nh2 27.Rf2 g6–+) 0–1. zrenjanin (2040) – marekt (2175), gameknot.com, 2014.

    6.Nc3 Nd7 7.g3+=.

    6.c4 c6 7.d4 (7.cd5 cd5 8.d4 e4=) 7...e4 (7...dc4!? 8.Qa4 ed4 9.Bd4 Qd7 10.Bc4 Bc4 11.Qc4 cb5=+) 8.Ne2 f5 (8...dc4!? 9.Nec3 Ne7=) 9.Nf4+= Bf7 10.h4 (10.bc6 bc6 11.cd5 cd5+= (11...Bd5? 12.Qh5 Bf7 13.Qf5+-)) 10...Nf6 11.Nc3 (11.c5 Be7=) 11...Bd6 (11...dc4 12.bc6 bc6 13.Rb1=+) 12.g3 (12.bc6 bc6 (worse 12...Nc6 13.cd5 Na7 14.Ne6 Be6 15.de6+/-) 13.c5 Bf4 14.ef4 Bh5=+) 12...Nbd7 (12...dc4 13.Qa4=+) 13.bc6 bc6 14.Qa4 Qc8 15.cd5 cd5 16.Nb5 Bb8 (16...Bf4 17.gf4 0-0 18.Rc1=) 17.Rc1= Qb7 18.h5 0-0 19.Be2 (19.h6 Nb6 20.Qb3 g6=) 19...Rd8 20.Bc3 Exerts pressure on the isolated pawn (20.h6 g6=) 20...Ra6 21.Qd1 (21.Ba5? Qa8-+) 21...Rc6 (21...Rc8 22.Rb1=) 22.a4 (22.Ba5!? Rc1 23.Qc1+=) 22...Rdc8=+ 23.Kf1 Qb6 (23...Nb6 24.h6 g6 25.Kg2=+) 24.Kg2= Qb7 25.Qd2 Nb6 26.Ba5 Nc4 27.Bc4 Rc4 28.Rc4 Rc4 29.Qa2 (better 29.Rb1!? Qd7 30.h6=) 29...Bf4-/+ 30.gf4 Bh5 (better 30...Qa8 31.Nd6 Qa5 32.Nc4 dc4-/+) 31.Bd8?? (better 31.Rh5 Nh5 32.Nd6=+) 31...Bf3-+ 32.Kg1 (32.Kg3 Qf7 33.Qa1 Qg6 34.Kh3 Qg2 35.Kh4 Qg4) 32...Rc1 33.Kh2 Rh1 34.Kg3 Nh5 0-1. FeegLood (2725) - jimakos (2625), lichess.org, 2016.

    6.d4 ed4 7.Bd4 Bd6 8.Bd3 Nh6 9.Ne2 0-0 10.Bb2 Nd7 11.Nd4 Bf7 12.0-0 c5 13.bc6 bc6 14.Nd2 (14.Nc6? Qb6 15.Nc3 Qc6–+) 14...Nc5 15.h3 (worse is 15.Nc6 Qb6–+) 15...Nd3 16.cd3 c5 17.Nb5 Be5 18.Rb1 Rb8 19.Be5 fe5 20.Qc2 Nf5 (20...Qe7 21.e4=) 21.Nf3 (21.Qc5 Rc8 22.Qa7 Be8–+) 21...Qe7= 22.Rfc1 Rbc8 23.e4 Nd4 24.Nbd4 ed4 25.Nd4 Bg6 26.Nf5 (26.Nb3 de4 27.Qc4 Kh8 28.de4 Qe4 (worse is 28...Be4 29.Re1 Rfe8 30.Rbd1+/–) 29.Qe4 Be4=) 26...Bf5= 27.ef5 Rf5 28.Rb5 c4 29.dc4 Rc4 30.Qf5 Rc1 31.Kh2 Qd6 32.f4 Rc4 33.Rd5 (33.Qd5?! Qd5 34.Rd5 a4=) 33...Rf4 34.Qh7! (worse is 34.Rd6 Rf5 35.Rd7 Re5=) 34...Kh7 35.Rd6 Ra4 36.Rd3 g5 37.g4 Kh6 38.Kg3 Kg6 39.h4 gh4 40.Kh4 Kh6 41.Rf3 Kg6 42.Rc3 Kh6 43.Rd3 Kg6 44.Rc3 Kh6 ½–½. Luzuriaga,Norberto (2240) – Arias Duval,Gonzalo Carlos (2215), Pappier Memorial C, 2000.

    6.d4 ed4 7.Bd4 Bd6 8.Nf3=.

    6.d4 ed4 7.Bd4 Nd7 8.Nd2 (8.Bd3 Nc5+=) 8...Bd6= 9.c4 (9.Ngf3 c5 10.bc6 bc6=) 9...Qe7 (9...Ne7 10.cd5 Nd5 11.Ne4=) 10.cd5 Bd5 11.Qh5 Bf7 12.Qg4 Bg6 (12...Bd5 13.Bc4 Ne5 14.Be5 Qe5 15.Ra2=) 13.Qf3 (13.Nc4 Ne5 14.Nd6 Qd6=) 13...0-0-0 (13...Rb8 14.Nc4=) 14.Nc4+= Ne5 (14...Kb8 15.Na5 Be4 16.Qd1+=) 15.Nd6 (15.Qh3 Rd7+=) 15...Qd6 16.Qd1 (16.Qh3 Kb8+=) 16...Nh6 Black gets strong initiative 17.Be2 (17.Qa4 Nf5 18.Bc3 b6+=) 17...Rhe8 (17...Nf5 18.Bc3 Qc5 19.Qc1=) 18.Be5 (18.Qa4 Nf5 19.Bc3 Nd3 20.Kf1 Qc5 21.Ba5 Re4 22.Qe4 Ng3 23.hg3 Be4-/+) 18...Qe5= 19.Qc1 Bd3 (19...Bc2 20.Nf3 Qc3 21.Kf1=) 20.a4 (20.b6 a4 21.bc7 Rd7=) 20...Qe4+= 21.Nf3 Be2 22.Ke2 Qd3 23.Ke1 Re4 24.Qa3 (24.Ra3 Rc4 25.Qa1 Qf5-/+) 24...Qc2-/+ 25.Rc1 (25.h3 Rb4 26.Qc1 Qc1 27.Rc1 Ra4-/+) 25...Qa4 26.Qc5 Threatening mate... how? 26...Qb4 27.Ke2 Rd7 (27...Qc5 28.Rc5 a4 29.Rhc1+=) 28.b6 c6 29.Rc2 Qc5 30.Rc5 Rb4 31.Nd4 (31.Ra1 Rb6 32.Ra2 a4-/+) 31...Rb6 32.Ra5 Rb2 33.Kf3 Nf7 34.Ne6 (34.Kg3 Ng5 35.f3 Rd6-/+) 34...Rdd2 35.Rf1 Kd7 36.Nc5 Ke7 37.Ra7 Rd5 (37...Nd6 38.Ra4-/+) 38.Rc1-/+ Rf5 39.Kg3 Nd6 40.Nb7 (40.Nd3 Rb3 41.Nf4 g5–+) 40...Rb7 41.Rb7 Nb7 42.Rc6 Rc5 (42...Nc5 43.f3–+) 43.Ra6 Ra5 44.Rc6 (44.Ra5 Na5 45.Kf4 Ke6–+) 44...Nd6 (44...Kd7 45.Rc4–+) 45.Rc7 (45.Kf3 Kd7 46.Rb6 Ra1–+) 45...Kd8 46.Rc2 ½–½. Lustyk,Jaroslaw – Morihama,Nicolau, corr ICCF EM/C/A027 Email, 1997.

    6.d4 e4 7.c4 dc4 8.Nc3 Qd7 9.Qa4=.

    6.d4 e4 7.c4 c6 8.c5 b6 9.cb6 Qb6+=.

    6.d4 e4 7.c4 c6 8.Nd2 Nd7 (8...cb5 9.cb5 Bd6 10.Rc1=) 9.Qb3 (9.c5 Ne7+=) 9...f5 (9...a4 10.Qd1=) 10.Nh3 (10.c5 Ngf6=) 10...Bf7 (10...a4 11.Qd1=) 11.Be2 (11.c5 Ngf6+=) 11...Bd6 (11...a4 12.Qa2=) 12.0-0 Qc7 13.f4 ef3 (13...a4 14.Qa2=) 14.Nf3+= Bh5 (14...dc4 15.Bc4 Bc4 16.Qc4=) 15.Nf4 Bf4 (15...a4 16.Qc2 Bf4 17.ef4 Qf4 18.Bc1+/–) 16.ef4+/– Ne7 17.bc6 bc6 18.Qe3 0-0?? (18...Bf3 19.Rf3 (19.gf3?! 0-0=+) 19...Kf7 20.cd5 Nd5 21.Qd3+=) 19.Rfe1 (19.Qe7 Rae8 20.Qg5 Re2 21.Qh5 Rb2 22.Ne5=) 19...Qd6 (19...Rae8 20.Rab1+=) 20.h3 (20.c5 Qf6+/–) 20...Ng6 (20...Rfe8 21.Rab1+=) 21.c5+/– Qf4 22.Qe6 Kh8? (better is 22...Rf7 23.Qc6 Rb8+/–) 23.Qd7+– Qg3 24.Nh2 Nf4 25.Bf1 Nh3 26.Kh1 Nf2 27.Kg1 Ne4 28.Kh1 (28.Re4 fe4 29.Kh1-/+) 28...Rab8?? (28...Qf2 29.Re4 fe4 30.Rb1-/+) 29.Qc6 (29.Reb1 Qf2 30.Qc7 Ng3 31.Qg3 Qg3 32.Ra2–+) 29...Rb2=+ 30.Qd5 Nf2 31.Kg1 Nh3 32.Kh1 Qf2 33.Qd6 Qg1 0–1. Bendig,Frank – Weber,A, corr TT/5003 BdF, 1995.

    6.d4 e4 7.c4 c6 8.Nh3 Ne7 (8...dc4!? 9.Nc3 Qb6=) 9.Nf4+= Bf7 10.Nd2 Ng6 11.bc6 Nf4 (11...bc6 12.Ng6 hg6 13.c5+=) 12.cb7+/- (12.ef4?! Nc6 13.Qb3 Qd7=) 12...Ra7 13.ef4 Rb7 14.Bc3 Bd6 15.g3 0-0 16.c5 Bc7 17.Bh3 Nc6 18.0-0 Qe7 19.Re1 Bg6 20.Nf1 Bf7 21.Qc2 Na7 (better 21...g6!?+/-) 22.f3!+- Re8 (22...ef3 23.Re3 Double attack (23.Re7 Pinning; 23.Re7 Deflection; 23.Re3 Decoy)) 23.Ne3 g6 24.fe4 de4 25.Reb1 White prepares the advance f5 25...Rb5 (25...Reb8 26.Rb7 Rb7 27.Rb1+-) 26.Bf1 Rbb8 27.f5 1-0. adonix1234 (2265) - marekt (2210), gameknot.com, 2018.

    6.d4 e4 7.Qh5 g6 8.Qd1 Bd6=+.

    6.Ne2 Qd7 7.f4 (7.Ng3 Bd6=+) 7...Bd6 (7...Qb5 8.Nd4 Qb2 9.Ne6 Qa1 10.Nc7 Kd8 11.Na8 ef4 12.Nb6=+) 8.fe5 fe5 9.Ng3 Nf6 10.Be2 0-0 11.0-0 e4 12.Bf6 gf6 (12...Rf6 13.Rf6 gf6 14.Nf1=+) 13.d4 (13.Nh5 Be5 14.Nc3 f5=) 13...f5 (13...Bg3!? 14.hg3 c6=+) 14.Nh5+= c5 15.c3 (better 15.Nc3+=) 15...Bf7?? (15...c4 16.Qa4=) 16.Nf4 (better 16.Nf6 Kg7 17.Nd7 Nd7 18.Rf5+-) 16...Qe7 17.Nd2 (17.dc5 Bc5 18.Qd2 Rd8+=) 17...Nd7 18.Qe1 (18.a4 Qg5=) 18...Nf6 (18...cd4 19.cd4 Ba3 20.Nh3=+) 19.Qh4 Kh8 20.Kh1 Rg8 21.Qf2 (21.Nb3 c4 22.Nd2 Ng4 23.Qe7 Be7 24.Bg4 fg4=+) 21...Raf8 (21...cd4 A) 22.ed4? e3 (22...Ba3?! 23.Qe3-/+) 23.Qe1 ed2 24.Qd2 Ne4-+ (worse 24...Ba3 25.Qc2-+); B) 22.cd4 Ba3 23.Bd1=+) 22.h3 (22.dc5 Bc5 23.Nb3 Ba3=) 22...Qd7 (22...cd4!? 23.cd4 Ba3=+) 23.a4 b6 24.dc5 Bc5 25.Nb3 Bd6 26.Nd4 Be5 27.Rad1 Qd6 (27...Rc8 28.Rc1=) 28.Rc1 (28.Nf5 Qa3+=) 28...Qd7 29.Nc6 Bc7 (29...Bf4 30.Qf4 Bh5 31.Qf2+=) 30.c4 dc4 31.Bc4 (31.Rfd1 Qe8+/-) 31...Bc4= 32.Rc4 Qf7 33.Rcc1 Rg7 34.Qb2 Rfg8 35.Rc2 Nd5 (35...Bf4 36.Rf4 Nh5 37.Rff2 Ng3 38.Kh2+/-) 36.Nd5+/- Qd5 37.Ne7 (37.Ne7 Qd6 38.Rc7 Qc7 39.Nf5+-) 1-0. FeegLood (2735) - jimakos (2615), Time forfeit, lichess.org, 2016.

    6.Nf3 (--> 4.e3 Be6 5.Nf3 a5 6.b5).

    6.Nh3 Bd6=+ 7.f4 Nd7 8.c4 (8.Qh5!? g6 9.Qh4=+) 8...dc4-/+ 9.Nc3 Ne7 10.Ne4 0-0 (10...Ng6 11.Qf3 ef4 12.Nd6 cd6 13.Nf4 Nf4 14.ef4-/+) 11.fe5 (11.Qc2 Nb6 12.fe5 Be5 (worse 12...fe5 13.Nhg5 Bf5 14.Bc4 Ned5 15.Bd5 Nd5 16.Qc4+=) 13.Be5 fe5=+) 11...Be5 12.Be5 Ne5 (12...fe5?! 13.Neg5 Bd5 14.Qc2=) 13.Nf4 Bf7 14.Rc1 (14.Be2!?-/+) 14...Nd5-+ 15.Nd5 Qd5 16.Nc3 Qd7 17.Be2 Rad8 18.Rc2 Qd6 19.a4 (19.Ra2 Nd3 20.Bd3 Qd3-+) 19...b6 (19...Bg6 20.Rb2-+) 20.0-0 Nd3 21.Bd3 Qd3 22.Rf4 Bg6 23.Rb2?? (better 23.Rc1-/+) 23…Qc3!-+ (23...Qc3 24.dc3 Rd1 25.Kf2 Bd3-+) 0-1. FeegLood (2800) - jimakos (2560), lichess.org, 2016.

    6.Nh3 Bh3 7.Qh5+= g6 8.Qh3 Qd7 9.Qd7 Nd7 10.c4 c6 11.bc6 bc6 12.cd5 cd5 13.Nc3 Ne7 14.Nb5 Kf7 15.f4 Rc8? (better 15...Rb8=) 16.fe5 (16.Nd6 Ke6 17.Nc8 Nc8 18.fe5 fe5+-) 16...Ke6 (better 16...Nf5 17.ef6 Nf6+-) 17.Be2?? (better 17.Nd4 Ke5 18.Ba6+-) 17...fe5= 18.Bg4 (18.Bc3 Nc6=) 18...Nf5=+ 19.d3 h5 20.Bh3 Rc2 (20...Nc5 21.Ke2=+) 21.Rb1 (21.Bc3 Ke7 22.e4 Ne3 23.ed5 Nd5 24.Ba5 Nc5=+) 21...Ke7=+ 22.e4 de4 23.de4 Ne3 24.Bc1 Ng2 (better 24...Bh6!? 25.Be3 Be3-/+) 25.Kd1+= Rf2 26.Bg5 Nf6 27.Nc3 Bh6? (better 27...Ke8 28.Rb8 Kf7 29.Rb7 Ke8+/-) 28.Nd5+- Kd6 29.Rb6 (29.Bf6 Rd2 30.Kc1 Rd5 31.Kb2 Rb8 32.Ka1 Rb1 33.Rb1 Rd2-/+) 29...Kc5 30.Rf6 (30.Bf6?! Rd2 31.Kc1 Rd5 32.Kb1 Rd2+/-) 30...Ra2 31.Bh6 (31.Rg6?! Bg5 32.Rg5 Rb8=) 31...Rh6 32.Bg2 Rg2 33.Rhf1 (33.Ra6 Kb5 34.Re6 Kc5+-) 33...Kd4 (33...Rh2 34.Ne7+/-) 34.R6f2 (34.Ne7 Rh2 35.Rd6 Ke4 36.Re1 Kf4 37.Ng6 Rg6 38.Rg6 Ra2 39.Rf6 Kg5+-) 34...Rf2 35.Rf2 Ke4 36.Rd2 (36.Nb6!?+-) 36...g5+/- 37.Nc3 Kf4 38.Rf2 Kg4 39.Ne4 Rg6 (39...Rb6!?+/-) 40.Nf6+- Kh3 41.Ke2 (41.Nh5 Rb6+-) 41...g4? (41...h4 42.Ne4 g4 43.Kf1+=) 42.Ne4 (better 42.Nh5 Rb6 43.Ke3 Rb3 44.Ke4 Ra3 45.Ke5+-) 42...h4= Black plans g3 43.Ke3 g3 44.hg3 hg3 45.Rf3 Kh2 (45...Kh4 46.Rg3 Rg3 47.Ng3 Kg3 48.a4=) 46.Rf5+= g2 47.Rh5 Kg1 48.Nd2?? (better 48.Ke2+=) 48...Rg3-+ 49.Ke2 Ra3 50.Re5 Ra2 51.Ke3 (51.Ke1 Kh2 52.Rh5 Kg3 53.Rg5 Kf4 54.Rg2 a4=) 51...Rd2 (51...a4!?=+) 52.Kd2= Kh2 53.Rh5 Kg3 54.Rg5 Kf2 55.Rf5 Kg3 56.Rg5 Kf2 57.Rf5 Kg3 58.Ke2 g1Q 59.Rg5 Kh2 60.Rh5 Kg2 61.Rg5 Kh2 62.Rh5 Kg2 63.Rg5 Kh1 64.Rh5 Qh2 65.Rh2 Kh2 66.Kd3 a4 67.Kc4 a3 68.Kb3 a2 69.Ka2 ½-½. FeegLood (2775) - jimakos (2585), lichess.org, 2016.

    6.Nh3 Bh3 7.Qh5+= g6 8.Qh3 Qd7 9.Qf3 Bg7 10.c4 c6 11.bc6 bc6 12.cd5 cd5 13.Nc3 Ne7 14.Bb5 Nbc6 15.Rc1 Rc8 16.Na4 0-0? (better 16...Qd6!?=) 17.Nb6+/- Qb7 18.Nc8 Qb5 19.Ne7 Ne7 20.Ba1 Qb3 21.Rc3 Qb1 22.Qd1 Qb5 23.Qb3 Qd7 (23...Rb8 24.Qb5 Rb5 25.Ke2+-) 24.0-0 Rd8 (24...a4 25.Qc2+-) 25.Rfc1 1-0. FeegLood (2760) - jimakos (2595), Time forfeit, lichess.org, 2016.

    6.c4 dc4+=

    7.Qc2 c6 8.Bc4= Qd7 9.a4 Bd6 10.Be6 Qe6 11.Nc3 Ne7 12.Nf3 0-0 13.d4 Nd7 14.0-0 Rac8 15.Qe2 (15.Rfd1 Rfd8=) 15...Bb4 (15...e4 16.Nd2 f5 17.f3 ef3 18.Rf3=) 16.de5 (16.e4 Ng6=) 16...Ne5 17.Ne5 Qe5 (17...fe5 18.Ne4=) 18.Rac1 (18.Na2 Qe6=) 18...Qe6 19.Rfd1 Rfd8 20.bc6 Nc6 21.Nb5 Rd1 22.Rd1 Rd8 23.Rd8 Nd8 24.h3 (24.Qd3 Nf7=) 24...Nc6 (24...Qb3 25.Bd4=) 25.Qd3 h5 (25...Qa2 26.Qc2=) 26.Nd4 (26.Qg6 Qf7 27.Qg3 h4+=) 26...Qd5 (26...Nd4 27.Bd4 Qc6 28.Qd1=) 27.Qc2 (27.Qg6!? Nd4 28.Qe8 Kh7 29.Bd4=) 27...Nd4= 28.Bd4 Qc6 (28...b5 29.g4=+) 29.Qf5 (29.Qd1 b5=+) 29...Qa4=+ 30.Qh5 (30.Qe6 Kf8 31.Qc8 Ke7 32.Qb7 Qd7=+) 30...Qb5?? (better 30...Qd7-/+) 31.Qb5+- 1-0. FeegLood (2755) - jimakos (2600), Time forfeit, lichess.org, 2016.

    7.Qc2 Qd5

    8.a4 Bb4 9.Na3 Can c4 get defended? 9...Ba3 10.Ba3 Nd7 11.Ne2 (11.e4 Qd4 12.Rc1 Nb6=) 11...Nb6 (11...Qd3 12.Qc1 Qg6 13.Ng3=+) 12.Nc3 Qd7 13.d3 Ne7 (13...Rd8 14.Rd1 Qf7 15.d4=+) 14.Rd1= cd3 15.Bd3 Bf5 16.Be4 Be4 17.Ne4 (better 17.Qe4 Qc8 18.Be7 Ke7 19.f4+=) 17...Qe6?? (better 17...Ned5=) 18.Qc7+- Nbd5 (18...0-0 19.Qe7 Qb3+-) 19.Rd5! Rd8 (19...Qd5 20.Qe7 Mate attack; 19...Nd5 20.Qb7 Double attack (20.Qb7 Decoy)) 20.Rd8 Kf7 21.Nd6 (21.Nd6 Kg6 22.Rh8+-) 1-0. FeegLood (2745) - jimakos (2610), lichess.org, 2016.

    8.Nc3 Qd7 9.a4 Qf7 (9...c6 10.d3-/+) 10.Nb1 (10.f4!?=+) 10...Nd7-/+ 11.Na3 Nb6 12.Rc1 Ba3 (12...c3 13.dc3 Bb3 14.Qb1-+) 13.Ba3 Ne7 14.Nf3 Ned5 15.d3 cd3 (15...Qg6!? 16.dc4 Qc2 17.Rc2 Nb4-/+) 16.Bd3=+ Rc8 (better 16...Nb4!? 17.Bb4 ab4 18.Qc7 Na4-/+) 17.Bh7+= (17.Bh7 Ne7 18.Be4=). FeegLood (2755) - jimakos (2600), Time forfeit, lichess.org, 2016.

    8.Nc3 Qd7 9.Qe4 c6 10.Bc4 Bf5=.

    8.Nc3 Qd7 9.Nf3 Bd6 10.a4 Qf7 11.Ne4 Nd7 12.Rc1 Nb6 13.Nd6 cd6 14.Ba3 Qd7 15.d3 Rc8 (15...cd3 16.Bd3 Rc8 17.Qd1=+) 16.d4 Ne7 17.Be2 0-0 (17...Ned5 18.0-0-/+) 18.0-0 Bf5 19.Qd1 (better 19.e4 ed4 20.ef5=) 19...Be6?? (better 19...e4 20.Nd2 c3-/+) 20.de5+= fe5 21.Qd6 Nf5?? (21...Qd6 22.Bd6 Rfe8 23.Be5+=) 22.Qe5 (better 22.Qb6 Rfe8 23.Ne5+-) 22...Rfe8+/- 23.Rfd1 Qf7 24.Qc3 Ne7 (24...Na4!? 25.Qa5 Nc5+/-) 25.Qa5 Ned5 26.Ng5 Qg6 27.Ne6 Qe6 28.Bf3 Rb8?? (better 28...c3 29.Qa7 c2+-) 29.Bc5 (29.e4!? Ne7 30.Rd6 Qf7 31.Rb6 Ra8+-) 29...Ra8 (29...Rec8 30.Bb6 Nb6 31.Qb4+-) 30.Qd2 Red8 (30...Ne7 31.a5 c3+-) 31.a5 c3 (31...Rac8 32.Qd4 Qf6 33.ab6 Qd4 34.ed4+-) 32.Qd3 (32.Qd4 Kf7 33.ab6 Nf6 34.Qc3 Rd1 35.Rd1 Kg8+-) 32...Ra5 33.Bb6 Ra2 (33...Qb6 34.Bd5 Kh8 35.Qc3 Raa8+-) 34.Bd5 (34.Bd5 Rd5 35.Qd5 Qd5 36.Rd5+-) 1-0. FeegLood (2765) - jimakos (2590), lichess.org, 2016.

    8.Nc3 Qc5

    9.a4!?= must be considered .

    9.d3 Bf5+=.

    9.Qe4 c6+= Prevents intrusion on d5 10.a4 f5 Black threatens to win material: f5xe4 11.Qc2 Nd7 (11...Qe7 12.e4 Qg5 13.Nf3=) 12.Nf3 Ne7 (12...Nh6 13.Ba3 Qb6 14.bc6 bc6 15.Bf8 Rf8 16.Qd1=) 13.Ba3 White threatens to win material: Ba3xc5 13...Qb6 14.bc6 (14.Ng5 Bg8 15.Be7 Be7 16.bc6 Qc6 (worse is 16...bc6 17.Qf5 Rb8 18.Rb1+=) 17.Qf5 Rc8=) 14...Nc6 Black has an active position (14...Qc6 Instead of 15.Nb5 Ng6 16.Ng5=; 14...bc6 Worse is 15.Ng5 Bd5 16.Rb1+=) 15.Ng5 (15.Bf8!? Kf8 16.Qd1+=) 15...Nb4-/+ 16.Bb4 ab4 17.Ne6 Qe6 (17...bc3 Inferior is 18.Nf8 cd2 19.Qd2 Rf8 20.Bc4=) 18.Nb5 Rc8 19.Rc1 Nb6 20.a5 (20.g4 fg4 21.a5 b3-/+) 20...b3 21.Qb1 Na4 22.Be2 Bb4 Black threatens to win material: Bb4xa5 (better is 22...b2 23.Rd1 Rc5-/+) 23.Bh5?? (23.0-0 b2 24.Rc2=) 23...g6–+ 24.Bf3 (24.Bd1 is one last hope 24...0-0 25.0-0–+) 24...Bd2! Decoy: d4. 25.Kd2 Qd7 26.Ke1 Qb5 27.Be2 Qb4 Black plans b2 28.Kf1 c3 Black intends b2 29.Qd3 (29.Bd1 is no salvation 29...b2 30.Rc2 Nc5–+) 29...Ke7 30.Qb5 (30.g3 does not improve anything 30...b2 31.Kg2 bc1R 32.Rc1 Rhd8–+) 30...Qb5 31.Bb5 b2 (31...b2 32.Ke2 bc1Q 33.Rc1 Nb2–+) 0–1. Bulcourf,Carlos – Comp Hiarcs 8, Comp Hiarcs 8–Vicente Lopez blitz, 2002.

    9.Nf3 Nd7 10.d4= cd3 11.Bd3 g6 12.0-0 Ne7 13.Nd2 (13.Rfd1 Rd8=) 13...Nd5 (13...Rd8 14.Nde4 Qa7 15.Rfd1=) 14.Nde4 (14.Rfd1 Nc3 15.Bc3 a4+=) 14...Qe7 (14...Qb6 15.Nd5 Bd5 16.Nc3=) 15.Nd5 Bd5 16.Rac1 (16.Qc7 Nc5 17.Qe7 Be7 18.Nc5 Bc5=) 16...c6 17.bc6 (17.Rfd1 Qe6 18.Nd2 Nc5+=) 17...Bc6 (17...bc6 18.f4+=) 18.Rfd1= f5 19.Nc3 Bg7 (19...Rd8 20.Nb5 Nc5 21.Bc4 Rd1 22.Rd1=) 20.e4 fe4 (20...Bh6 21.Rb1 (worse is 21.ef5 Bc1 22.Bc1 gf5+=) 21...fe4 22.Be4=) 21.Be4 (21.Ne4 Bh6 22.Rb1 0-0=) 21...0-0 22.Bc6 bc6 23.Ne4 Rac8 (23...Nb8 24.Qb3 Kh8 25.Rc5=) 24.Qe2 (24.Qd2 Qh4 25.Rc6 Rc6 26.Qd5 Kh8 27.Qc6 Nf6 28.Nf6 Qf6 29.Qf6 Bf6+/–) 24...c5 (24...Bh6 25.Qc4 Kh8 26.Rc2=) 25.Bc3 c4 (25...Ra8+=) 26.h3 (26.Nd6 Rc6 27.Nc4 Rfc8+=) 26...Nc5 (26...Qa3 27.Nd6 Rc5 28.Nc4=) 27.Nd6 (27.Qc4 Ne6 28.Qd5 Rfd8+/–) 27...Nd3+= 28.Nc8 Rc8 29.Qg4 (29.Rc2 a4+=) 29...Qc5 (29...Rc6!? 30.Qe4 Rc8+/–) 30.Rc2+/– Rf8 (30...Rc6 31.Ba5 Qd5 32.Bc3+–) 31.Ba5!+– Nf2 (31...Qa5 32.Qc4 Double attack) 32.Bb4 (32.Qe6 Kh8 33.Bb6 Nh3 34.Kh2 Qa3 35.Qh3 Qb4+–) 32...Ng4 33.Bc5 Rc8 34.Bb6 (34.hg4?! Rc5 35.Rd8 Kf7 36.Rd7 Kg8+=; 34.Rc4?! Ne3 35.Be3 Rc4=) 34...Nf6 35.a4 (35.Rd8!? Rd8 36.Bd8 Nd5 37.Rc4 Kf7+–) 35...c3 (35...Kf7!?+=) 36.a5+/– e4 (36...Rc6!?+/–) 37.a6+– Ra8 (better is 37...h5+–) 38.Rd8 (better is 38.a7 Ne8 39.Kf1+–) 38...Ne8?? (38...Rd8 39.Bd8 Nd5+/–) 39.Ra8+– 1–0. Wall,Bill – MFFG, FICS, 2010.

    9.Nf3 Ne7 10.Rc1+=.

    6.d4 Nd7

    7.Nd2 ed4 8.ed4 Qe7 9.Be2 a4 10.Ngf3 Qf7 11.Bd3 Bd6 12.c4 dc4 13.Nc4 Bc4 14.Qe2 Qe7 15.Bc4 Qe2 16.Be2 Ne7 17.Nd2 Nb6 18.Nc4 Nc4 19.Bc4 0-0-0 20.0-0 Rhe8 21.Rfe1 Kb8 22.Re4 f5 23.Re2 Nc8 24.Be6 Bf8 25.Kf1 Nd6 26.d5 Nb5 27.Be5 (27.Bf5 Re2 28.Ke2 Nd4 29.Bd4 Rd5 30.Bh7 Rd4+=) 27...Bc5 (27...g6 28.f4+=) 28.Rc1 Bd4 29.Bf4 h6 30.h4 Re7 31.Rec2 Bf6 32.Rc5 Nd6 33.h5 Bg5 34.Bd6 cd6 35.Rc8 Ka7 36.R1c4 Rc8 37.Bc8 b5 38.Rc6 b4 39.ab4 a3 40.Ra6 Kb8 41.Bf5 Bd2 42.f3 Bb4 43.Be4 Bc5 44.Ke2 Kb7 45.Ra4 Kb6 46.Ra8 Kb5 47.Kd2 Bb4 48.Kd1 Rc7 49.Bb1 Kc4 50.Re8 (better is 50.Ba2!? Kc3 51.Rb8-/+) 50...Kd5–+ 51.Re4 Kc5 52.Ba2 Kb5 53.Re3 d5! 54.Re5 (54.Bd5 Rd7 Decoy) 54...Ka4 55.Re3 (better is 55.Rd5!? Re7 56.Bc4-/+) 55...d4–+ 56.Bb3 Kb5 57.Re5 Kb6 58.Re6 Ka7 59.Ba2 Rc3 60.Re2 Kb6 61.Bg8 d3 62.Re6 Kb5 63.Re5 Ka4 64.Re3 Rc2 65.Rd3 a2 66.Ba2 Ra2 0–1. Hoch,Hubertus (2210) – Barnett,Clive (2325), WC15/WS57 ICCF, 2006.

    7.Nd2 Ne7 8.c4 g6 9.cd5 Nd5 10.e4 N5b6 11.Ngf3 ed4 12.Nd4 Bf7 13.Be2 h5 14.0-0 Bg7 15.Qc2+/– Qe7 16.Rac1 0-0 17.Qc7+– f5 18.Qb7 Bd4 19.Bd4 Rab8 20.Qc7 Rbc8 21.Qf4 Rc1 22.Rc1 fe4 23.Qh6 Be8 24.Qh8 Kf7 25.Qg7 Ke6 26.Rc6 Kd5 27.Qe7 Kd4 28.Qe4 1–0. MarcosRamos (1615) – babai, internet, 2007.

    7.Nf3 Bd6 8.Be2 Ne7 9.0-0 e4 10.Nfd2 f5 11.c4 dc4 12.Nc4 Nd5 13.Nc3 N7f6 14.Nd6 cd6 15.Rc1 0-0 16.Bc4 Qe7 17.Qb3 Qf7 18.a4 Rac8 19.Ba3 (better is 19.Rfe1!?=) 19...Rc4!-/+ 20.Qc4 Ne3! 21.Qe2 (21.fe3 Bc4 Discovered attack) 21...Nf1 22.Qf1 Rd8 23.h3 Bb3 24.Qe2 Qe6 25.f3 e3 26.f4 Rc8 27.g3 b6 28.Kh2 Re8 29.Re1 Ne4 30.Qe3? (30.Ne4 Qe4 31.Bc1–+) 30...Nc3 31.Qe6 Re6 32.Re6 Be6 0–1. Legg,Jerry (1735) – Wlasow,Andrey (2220), IECG, 2004.

    7.de5 fe5

    8.c4 dc4 9.Nd2 c3 10.Bc3 Ngf6 11.Ngf3 The isolani on e5 becomes a target 11...Nd5 (11...Bd6 12.Ng5 Bg4 13.Qb3=) 12.Bb2+= Bd6 13.Nc4 Increasing the pressure on the isolated pawn on e5 13...0-0 14.e4 (14.Nfe5?! Ne5 15.Ne5 Qf6=; 14.Be5 Ne5 15.Nce5 Be5 16.Ne5 Qf6–+; 14.Nce5?! Ne5 15.Ne5 Qf6=) 14...N5b6 15.Nd6 cd6 16.Qd6 Bd5 17.Rc1 Be4 18.Qe6 (18.Ne5?! Re8 19.Rd1 Qg5=) 18...Rf7 19.Ne5 Ne5 20.Be5 (20.Qe5?? Re7 21.Rc7 Qc7 (21...Rc7?! 22.Qe4 Re7 23.Be5–+) 22.Qc7 Rc7–+) 20...Bd5 21.Qh3 Bf3 (21...Qe8 22.Qe3=) 22.gf3 Qd5 23.Bc7 Re8 24.Be2 Qb5 25.0-0 Re2 26.Bb6 Qb6 27.Rc8 Rf8 28.Rf8 Kf8 29.Qh7 Qc5 30.Qd3 Rb2 31.Qe3 Qe3 32.fe3 Ra2 33.Rb1 Ra3 34.Kf2 a4 35.Rb7 Rb3 36.Ra7 a3 37.h4 Rb2 38.Kg3 a2 39.f4 Re2 (39...Ke8!?+=) 40.e4+/– Rb2 41.f5 1–0. nordlicht (1990) – eliminator_2000 (2070), GK tournament, 2012.

    8.c4 Ngf6 9.Nf3 dc4 10.Nbd2 Nc5 11.Be5 Nd3 12.Bd3 cd3 13.0-0 Bd6 14.Bf6 Qf6 15.Ne4 Qg6 16.Qd3 0-0 17.Rfd1 Be7 18.Ng3 1–0. Badkarma – Ole_Jacobsen, playchess.de, 2002.

    8.c4 Ngf6 9.Nf3 dc4 (9...Bd6 A) 10.Ng5 A1) 10...Qe7 11.Ne6 (11.cd5 Bd5 12.Nc3 Bg8 13.Qf3 Rb8 14.Nge4=; 11.Qc2 c6 12.Ne6 Qe6 13.cd5 cd5 14.Nc3+=) 11...Qe6 12.cd5 Nd5 13.Bc4 N7b6 14.Ba2+=; A2) 10...Bg4 11.Qc2 Qe7 12.cd5 Nd5 13.h4 N7f6 14.Bc4=; B) 10.cd5 Nd5 11.Qc2 (11.Bd3 0-0 12.Qc2 h6 13.Nbd2 Qe8 14.Nc4+=; 11.Nbd2 0-0 12.Nc4 Qe8 13.Ng5 Qe7 14.Ne6+=) 11...0-0 12.Bd3 h6 13.Nbd2 Qe8 14.Rd1+=) 10.Nbd2 Nc5 (10...e4 11.Nd4 Bd5 12.Rc1 c3 13.Rc3 Bc5 14.N4b3=; 10...Bg4 11.h3 (11.Qc2 c3 12.Qc3 Bd6 13.Bc4 c6 14.Rc1+=) 11...Bh5 12.Bc4 Bd6 13.g4 Bf7 14.Bf7+/–; 10...c3 11.Bc3 Bd6 12.Ng5 Bg4 13.Qb3 Qe7 14.Bc4=; 10...Nd5 11.Nc4 e4 12.Nd4 Bf7 13.Qc2 Nc5 14.Ne5+=) 11.Ne5 Nb3 12.Nb3 Qd1 (12...cb3 13.Be2 Qd1 14.Rd1+=) 13.Rd1 cb3 14.Bd3 (14.Be2+=) 14...a4 15.0-0 (15.e4 Rd8=) 15...Rd8 16.Rfe1 Bc5 17.h3 0-0 18.Nf3 Bd5 19.e4 Be6 20.Rc1 b6 (20...Bb6 21.Bc4 Rfe8 22.Be6 Re6 23.Rc4+=) 21.Bc4+= Bc4 22.Rc4 Nh5 23.Bd4 Bd4 24.Nd4 (worse is 24.Rd4 Rd4 25.Nd4 Nf4+=) 24...Nf4 25.f3 Nd3 26.Rb1 Nc5 27.Rf1 (27.g3 g5=) 27...Rd7 28.Nc6 Rd2 29.Nb4 Rfd8 30.h4 (30.Kh2!?+=) 30...Re2-/+ 31.Nd5 Ra2 32.Rd4 Kf7 (32...Ra3?! 33.Ne7 Kf8 34.Rd8 Ke7 35.Rd2=) 33.Rfd1 Ra3 34.R4d2 Rd7 35.g3 h6 36.h5 Rd6 37.Rb2 c6 38.bc6 Rc6 39.Nb4 Rf6 40.Kg2 g5 41.hg6 Rg6 (41...Kg6?! 42.Nd5 Rf7 43.Nb6+=) 42.e5 b5 43.Rd5 Na6 44.Rb5 Nb4 45.Rb4 Ra6 46.Kh3 Ke6 47.f4 Ra2 48.Rb1 Rc2 49.Kg4 Rc3 50.Rh1 Kd5 51.e6 Ra8 52.e7 Re3 53.Rh5 Kd6 ½–½. Luzuriaga,Norberto Horacio – Lo Conte,Victorio, Tigerschachclub, 2000.

    8.Nf3 Bd6 9.c4 Ngf6 10.cd5 (10.Ng5 Bg4 11.Qc2 c6 12.f3 Bh5 13.cd5 Bg6 14.e4 cd5=) 10...Nd5 11.Nbd2 (11.Bd3 0-0 12.Qc2 h6 13.Nbd2 N5f6 14.Nc4 e4+/–; 11.Qc2 0-0 12.Bd3 h6 13.Nbd2 N5f6 14.Nc4 e4+/–) 11...Qe7 (11...0-0 12.Nc4 Qe8 13.Ng5 Qg6 14.Ne6 Qe6+=) 12.Qc2 (12.Nc4 0-0 13.Bd3 N5b6 14.Nce5 Nc5+=) 12...0-0 13.Bd3 h6 14.Nc4 Bg4 15.Be4 Qe6 16.Rc1 Bf3 17.gf3 Kh8 (17...N7f6 18.Rg1+=) 18.Rg1 N7f6 19.Rd1 Ne4 20.fe4 Nf6 21.f4 Nd7 (21...ef4? 22.e5 Ng4 A) worse is 23.Nd6 A1) worse is 23...cd6 24.Rd6 (24.ed6?? Qe3 25.Qe2 Qg1 26.Kd2 Qe3 27.Qe3 fe3 28.Kc3 Rac8 29.Kb3 Rf3–+) 24...Ne3 25.Qg6 Qg6 26.Rdg6+= (26.Rgg6? Nc4–+); A2) 23...f3 24.Ne4 f2 25.Nf2 A21) 25...Nf2 26.Rd2 (worse is 26.Qc7 Rf7 27.Rd8 Rd8 28.Qd8 Kh7+=) 26...Ng4 27.Qe4+– (27.Qc7?! Qf5 28.e6 Qb1 29.Qc1 Qc1 30.Bc1 Ne5+=); A22) 25...Rf2-/+; B) 23.ed6+/–) 22.Rd5 a4 23.Qd2 Rf7 24.Nd6 (24.Rd6?! cd6 25.Nd6 Rf6=) 24...cd6 25.Rd6 Qe7 26.Rg3 Rc8 27.Qd5 Kh7 28.Re6 Qf8 29.Qd1 (29.Rg2 Rc5 30.Qb7 ef4 31.ef4 Ne5 32.Qf7 Nf7 33.Rg7 Qg7 34.Bg7 Kg7+=) 29...Nf6? (29...ef4 30.ef4 Nc5+–) 30.Re5+/– (30.Qa4?! ef4 31.ef4 Nh5+=) 30...Rd7 31.Qb1 Qg8 32.Rd5 Nd5 33.ed5 g6 34.e4 Qe8 35.Qd3 Rf7 36.Be5 Rc5 37.b6 Rb5 38.Qc2 Rb6 39.Rc3 Qe7 40.h3 (worse is 40.Qa4 Qh4 41.Kd1 Qg4 42.Kd2 Qg2 43.Kd3 Rb2+=) 40...Qh4 41.Kd1 Qh5 42.Kd2 Qh4 43.Rf3 (43.Qa4?! Qf2 44.Kd3 Qf1 45.Kd4 Rb1=) 43...Qd8 44.Qa4 Rb1 45.Re3 Rh1 46.Qb5 Qc8 47.Rc3 Rh2 48.Kd1 Rh1 49.Ke2 Qd8 50.Kd2 Qh4 51.Re3 Qf2 52.Qe2 Qg1 53.Qe1 ½–½. Baer,W – Bohnke,H, OCC–2002–06, 2002.

    8.Nf3 Bd6 9.c4 Ngf6 10.Ng5 Bg8 11.cd5 Nd5 12.Ne4 Qh4 13.Nd6 (13.Qa4 Be7 14.g3 Qh5=) 13...cd6 14.Qe2 (14.Qf3 Be6=) 14...Rc8 15.e4 Nf4 16.Qd2 Ne6 17.Nc3 (17.Qe2!?=) 17...Nd4-/+ 18.Be2 Nc5 19.g3 (better is 19.Rd1!? Bc4! 20.Bc4 Ne4 21.Ne4 Qe4 22.Kf1 Rc4 23.Qe1–+) 19...Qh3–+ 20.f4? (20.Rc1 Ncb3 21.Qg5 Nc1 22.Qg7–+) 20...Bc4!! (20...Ne2 21.Qe2 ef4 22.Rd1 fg3 23.e5–+) 21.Kd1 (21.Bc4 Nde6) 21...Ne2 22.Ne2 Qg2 23.Rg1 Qf2 24.Qc2 Bb3 (25.Rc1 Qe3–+) 0–1. kamret (2145) – TreatYourself (1695), GameColony.com, 2003.

    8.Nf3 Bd6 9.Nbd2 Qe7 10.e4 c6 11.bc6 bc6 12.Bd3 (12.ed5 cd5 13.Bb5 Bg4 (13...Kf7 14.Bd7 Bd7 15.Nc4 d4 16.0-0 Rc8+–; 13...Rb8= 14.Qe2 Kf8 15.Rb1 d4 16.0-0 Nc5+=) 14.Bd7 Bd7 15.Ne5 Nf6 16.Qe2 Bf5+=) 12...Nh6 (12...Ngf6 A) 13.Qe2 0-0 14.0-0 Bg4 15.Rfb1 Nh5 16.Qe1 Nf4-/+; B) 13.Ng5 0-0 14.Ne6 Qe6 15.ed5 cd5 16.Qe2 Rab8-/+; C) 13.0-0 0-0 (13...Rb8 14.Qc1 0-0 15.Re1 d4 16.Nc4 Bc7+=) 14.Qe2 Bg4 15.Rfb1 Nh5 16.Qe1 Nf4-/+; D) 13.ed5 cd5 14.Ng5+= 0-0 15.Ne6 Qe6 16.Rb1 e4+=) 13.0-0 (13.Qe2 0-0 (13...Nf7 14.ed5 cd5 15.c4 0-0 16.cd5 Bd5=) 14.0-0 d4 15.c3 c5 16.Bc4 Rab8+=) 13...0-0 14.Qe2 Nf7 (14...d4 15.Rfb1 Nc5 16.Bc4 Rab8+=) 15.Rae1 (15.ed5 cd5 16.c4 Nc5 17.cd5 Bd5=) 15...Rab8 (15...Ba3 16.ed5 cd5 17.Ne5 Bb2 18.Nc6+=) 16.Bc1 (16.Ba1 d4+=; 16.ed5 cd5+=) 16...Ba3 (16...Nc5 17.c4 d4 18.Rd1-/+) 17.Ba3 (17.ed5!? cd5 18.Bh7 Kh8 19.Ba3 Qa3 20.Bg6=) 17...Qa3-/+ 18.Ra1 Qc3 19.ed5 (19.Nb3 Ra8-/+) 19...cd5–+ 20.Nb3 (20.Qe3 Rfc8-/+) 20...e4 (20...Bg4!? 21.Qd2 Rfc8–+) 21.Nfd4-/+ ed3 22.Qe6 Nf6 (22...Nc5!? 23.Qe1 Qe1 24.Rfe1 Nb3 25.cb3 Rb4+=) 23.Qe3=. Wall,Bill – Lai,Raymond, corr, 1993.

    8.Nf3 Bd6 9.Nbd2 Ngf6 10.c4 0-0 11.Ng5 Bg4 12.Qc2 d4 13.h3 (13.ed4 ed4 14.f3 Qe7 15.Kd1 Bh5+=) 13...de3 14.fe3 (worse is 14.hg4 ed2 15.Ke2 e4=) 14...Bh5 15.Ne6 e4 16.Nb3 (16.Ne4? Ne4 17.Qe4 Bg3 18.Kd2 Nc5 19.Qd5 Ne6–+) 16...Qe7 17.Nf8 Rf8 18.Be2 (18.g4 Bg6+/–) 18...Bg3 19.Kd2 Be2 20.Ke2 a4 (20...Ng4 21.Raf1 Nf2 22.Rhg1+= (22.Na5? Nh1 23.Qd2 Rf1 24.Kf1 Qf8 25.Kg1 Nf2–+)) 21.Nd4+= Nc5 (21...Nh5!? 22.Rhf1 Bd6+=) 22.Nf5+/– Qe8 23.Ng3 Qg6 24.Be5 Nh5 25.Raf1 Attacks the isolani on e4 25...Ng3 26.Bg3 Qg3 27.Rf8 Kf8 28.Rf1 Kg8 (28...Ke8!? 29.Kd1 Qe3=) 29.Qd2+= Nd3 30.Kd1 Qe5 31.Qa2 Qc5 32.Kd2 h6 33.Kc3 (better is 33.g4=) 33...Qe3-/+ 34.Qd2 Qg3 35.Rg1?? (better is 35.Rb1-/+) 35...Qe5–+ 36.Kc2 Qb2 37.Kd1 Qb1 38.Ke2 Qg1 0–1. Fournier,Frederic (2120) – oberena(C) (2500), Chess21, 2002.

    8.Qh5 g6 9.Qf3 Ngf6 10.g3 (10.c4!?=+) 10...Bc5 11.Bg2?? (better is 11.Nd2-/+) 11...Bg4–+ 12.Qg4 Ng4 13.Bd5 Ndf6 (better is 13...Rf8 14.Nf3 Be3 15.fe3–+) 14.Bc4 (14.Bb7 0-0 15.Bc6 Nf2 16.Nd2–+) 14...Ne4 (14...Nf2 15.Kf2 Qd1 16.Be2 Qc2 17.Bc3–+) 15.f3 (15.Nh3 Rf8–+) 15...Nef2 16.Ne2 (16.fg4 Be3 17.Be2 Nh1 18.Nh3–+) 16…Qd1 0–1. Slavisa666 – tv5, Live Game Caissa's Web, 2004.

    6.Nh3 Qd7

    7.d4 Bh3 8.gh3 e4=.

    7.f4 e4 8.Nf2= c5 9.bc6 bc6 10.d3 f5 11.de4 fe4 12.Nd2 Nf6 13.Be2 (13.c4 Be7=) 13...Na6 (13...Bc5!? 14.Nf1 0-0=+) 14.g4= Nc7 (14...Nc5 15.g5 Ng8 16.Bd4=) 15.g5+= Ng8 16.Bh5 Bf7 (16...Kd8 17.Ng4 Bg4 18.Bg4+/-) 17.Bg4 (17.Nc4! Bh5 18.Qh5 Qf7 19.Qf7 Kf7 20.Ne5 Ke8 21.Nc6+/-) 17...Be6 18.0-0 (18.c4 Bg4 19.Ng4 Bd6+=) 18...Ne7 19.Bh5 Bf7 (better 19...Kd8!?=+) 20.Bf7+= Kf7 21.Ng4 (21.Nde4 Nf5 22.Re1 Qe6 23.Qh5 Qg6 24.Qg6 hg6+/-) 21...Ke8= 22.Ne5 Qe6 (22...Qh3 23.Rf2 h6=+ (23...Qe3?? 24.Ndc4 Qh3 25.Nd6 Kd8 26.Ndf7 Ke8 27.Nh8+-)) 23.c4+= Nf5 24.cd5 cd5 25.Qa4 Ke7? (better 25...Kd8!?+=) 26.Rac1+- Rc8?? (better 26...Kd8+-) 27.Rc6 Nd6 28.Rfc1 (28.f5 Qe5 29.Be5 Nde8 30.f6 gf6 31.Bf6 Kf7 32.Bh8 Ke7 33.Bf6 Kf7 34.Bd4 Nf6 35.Rcf6 Kg7 36.Qd7 Be7 37.Qe7 Kg8 38.Rf8 Rf8 39.Rf8) 28...Kd8 29.Qa5 Nde8 30.Re6 (30.Re6 Bd6 31.Ne4 de4 32.Nc6 Kd7 33.Qf5 Be7 34.Re7 Kd6 35.Rd7) 1-0. FeegLood (2765) - jimakos (2590), lichess.org, 2016.

    7.f4 e4 8.Nf2= f5 9.d3 (9.Be2 Bc5=) 9...Nf6 (9...Qb5 10.Bd4 Qd7 11.Qh5 Bf7 12.Qg5-/+) 10.Nd2 ed3 11.Bd3 Be7 12.Nf3 0-0 13.Ne5 Qe8 14.g4 fg4 15.Rg1 Nbd7 16.Nfg4 Ng4 17.Ng4 Nf6 18.Ne5 (18.f5 Bd7 19.Qf3 Kh8=) 18...Kh8 19.Qf3 Rd8 20.0-0-0 Ne4 (better 20...Bd6=) 21.Be4 de4 22.Qe4 Bf6? (22...Rd1!? 23.Kd1 Bf6 24.Qb7 Qh5 25.Kc1 Qe2+/-) 23.Rd8+- Qd8 24.Qd4 (better 24.Ng6!? hg6 25.Qe6+-) 24...Qe8 25.a4 (25.Qc5 Rg8+/-) 25...c6 26.Qd3 cb5 27.Qb5 Qh5 28.Nd3?? (better 28.Qb7 Rc8 29.Nc4 Bb2 30.Nb2+/-) 28...Qh2=+ 29.Rd1 Rc8 30.Ne1 Bb2 (30...Qf2 31.Bf6 Qe3 32.Kb1 gf6 33.f5-/+) 31.Qb2 (better 31.Kb2!? Qf2 32.Qa5 Qe3 33.Rd8 Rd8 34.Qd8 Bg8 35.Nd3=) 31...Qf2-/+ 32.Qd4 1-0. FeegLood (2765) - jimakos (2590), Time forfeit, lichess.org, 2016.

    7.f4 Bg4 8.Be2 Bh3 9.gh3 Qh3 10.Bh5 g6 11.Qg4 Qg4 12.Bg4 ef4 13.Nc3=+.

    7.f4 Bh3 8.Qh5 g6 9.Qh3 Qh3

    10.gh3 Bd6 11.Bg2 (11.fe5 fe5 12.c4 dc4 13.Bc4 Nd7=) 11...c6=+ 12.bc6 bc6 13.c4 Ne7 (13...dc4 14.fe5 fe5 15.Nc3=+) 14.cd5= cd5 (14...Nd5 15.Bd5 cd5 16.Nc3=) 15.Nc3 ef4 (15...Nd7 16.Nd5 (worse 16.Bd5 Rb8 17.Ra2 ef4=+) 16...Nd5 17.Bd5+=) 16.Nd5+= Nd5 17.Bd5 Ra6 18.Bf6 Rf8 19.Bd4 f3 (19...a4!?+=) 20.Rf1+- Bh2 (20...Nc6 21.Bc3+- (21.Bf3?! Nd4 22.ed4 Kd8+=)) 21.Rf3 Rf3 22.Bf3 Nd7 (22...Nc6 23.Bc3+-) 23.Rc1 Be5 24.Rc8 Ke7 25.Be2 Rd6 (better 25...Re6 26.Bc5 Kf6+-) 26.Be5 Ne5 27.d4 (27.Rc5 Nd3 28.Bd3 Rd3 29.Ra5 Rb3+-) 27...Nf7 (27...Nd7 28.Rc7 Kd8 29.Ra7+-) 28.Rc7 (28.Ra8 Kf6+-) 28...Kf6 (28...Rd7 29.Rc5 Ra7 30.e4+-) 29.Bc4 (29.Ra7 h6+-) 29...Ng5 30.h4 (30.Ke2 h5 31.h4 Ne6 32.Be6 Ke6+-) 30...Nf3 31.Ke2 Nh4 (31...Nd4 32.ed4 Rd4 33.h5+-) 32.Rh7 Nf5 33.Kd3 g5 34.Rf7 Kg6 35.Ra7 g4 36.Ra5 g3 37.Ke2 Rf6?? (better 37...g2 38.Kf2 Ne3 39.Bd3 Kf7+/-) 38.Bd3+- g2 (38...Rb6 39.Rf5 Kh6 40.Be4+-) 39.Kf2 Kg7 40.Rf5 Rg6 (40...Rb6 41.Rg5 Kf8 42.Bb5+-) 41.Kg1 1-0. FeegLood (2775) - jimakos (2580), lichess.org, 2016.

    10.gh3 ef4

    11.c4 fe3-/+ 12.cd5 ed2 13.Nd2 Bd6 14.Nc4 Nd7 15.Bg2 Ne5 16.Ne5 Be5 17.Be5 fe5 18.d6 (18.Rf1 Nh6-/+) 18...cd6 19.Bb7 Rb8 20.Bc6 Ke7 21.0-0 Nf6 22.a4 (22.Rae1 g5-/+) 22...Rhf8 23.Rf3 Nd7 24.Rd3 Nb6 25.Rad1 Rbd8 26.Rc3 Rf4 27.Bg2 (27.Ra1 d5-+ (27...Na4?! 28.Rca3 Nb6 29.Ra5-+; 27...Ra4?! 28.Ra4 Na4 29.Ra3-+)) 27...Ra4 28.Rc6 Nc4 29.b6 Rb4 30.b7 (30.Rc7 Rd7 31.Bc6 Rc7 (31...Nb6?! 32.Bd7 Nd7 33.Ra1-+) 32.bc7 Nb6-+) 30...Ne3 31.Rdc1 (31.Rc7 Rd7 32.Rd7 Kd7-+) 31...Ng2 32.Kg2 Rb7 33.Ra6 Rbd7 (better 33...Rb2!? 34.Kg3 Rb3 35.Kg2-+) 34.Ra5 Ke6 35.Ra6 Ke7 36.Rd1?? (36.Ra5 d5 37.Rc6-+) 36...Rc8 37.Kf3 Rc4 38.Kg3 Re4 39.Kf3 Rf4 40.Kg3 Rf6 41.Re1 Re6 42.Ra5 d5 Black prepares the advance e4 43.Kg4 d4 (43...h5 44.Kf3-+) 44.Kg5? (44.Rae5 Re5 45.Re5 Kd6 46.Rb5-+) 44...e4 45.Kf4 d3 (better 45...e3!? 46.Raa1-+) 46.Ke3 d2 47.Rd1 Rd3 48.Ke2 Rh3 49.Kd2 (49.Ra7 Kf6 50.Rf1 Rf3-+) 49...Rh2 (49...e3 50.Ke2 Rh2 51.Kf3-+) 50.Ke3 Rh3 51.Kf4 Rf3 52.Kg4 (52.Kg5 Rf7 53.Re1-+) 52...Rf5! 53.Rf5 gf5 54.Kf5 e3 55.Re1 Kf7 56.Kf4 e2 57.Kf3 h5 58.Re2 Re2 (better 58...Rd6-/+) 59.Ke2= Kf6 60.Kf3 Ke5 61.Kg3 ½-½. FeegLood (2720) - jimakos (2630), Time forfeit, lichess.org, 2016.

    11.ef4 Bd6 12.Bg2 c6 13.0-0 Nd7 14.Nc3 f5?? (better 14...Ne7=+) 15.Nd5+- cd5 16.Bh8 Rc8? (16...Ngf6 17.c4!+-) 17.c3 (better 17.Bd5!? Ngf6 18.Bb7 Rc2 19.d4+-) 17...Ndf6 (17...Ngf6 18.h4+/-) 18.Rae1 (18.h4 Kd7+-) 18...Kf7+/- 19.Bf6 (19.Re5 Rc5+/-) 19...Nf6 20.a4 (20.h4 h5+/-) 20...Bc5 21.Kh1 d4?? (better 21...Bd6+=) 22.Bb7+- Rc7 (22...Rd8 23.Rc1+-) 23.Bc6 dc3 24.dc3 Bb6 25.Re5 (25.c4 h6+-) 25...Nh5 (25...Nd7 26.Bd5 Kf8 27.Re6 Rc3 28.Rfe1+-) 26.c4 (26.Bd5 Kg7 27.Re6 Rc5+-) 26...Bd4 27.Rd5 (27.Bd5 Kf8 28.Re6 Re7+-) 27...Be3 28.c5 Nf4 29.Rd7 Rd7 30.Bd7 1-0. FeegLood (2720) - jimakos (2630), Time forfeit, lichess.org, 2016.

    11.ef4 Nd7 12.Bg2=+.

    11.Bg2 fe3 12.Bd5 c6 13.bc6 bc6 14.Bc4 ed2 15.Nd2 Bg7 (15...Nd7!?-/+) 16.0-0-0= Kf8?? (16...Nd7 17.Ne4 Ne7 18.Nd6 Kf8 19.Rhf1=) 17.Rhe1 (17.Ne4 Na6 18.Rd7 Ne7 19.Ba6 Ra6 20.Rd8 Kf7 21.Nd6 Ke6 22.Re1 Kd5 23.Ne8 Kc4 24.Re7 Re8 25.Rde8 Bh6 26.Kd1 f5 27.Rh7 Bf4+-) 17...f5? (better 17...Nd7=) 18.Re8!+- Ke8 19.Bg7 1-0. FeegLood (2750) - jimakos (2605), lichess.org, 2016.

    11.Bg2 fe3-/+ 12.Bd5 ed2 13.Kd2 c6 14.Re1 Kd7 15.Be6 Kc7 16.Nc3 Bg7 17.Rad1 cb5?? (better 17...Nd7!?-/+) 18.Nb5 (18.Nd5 Kc6 19.Bg8 Na6 20.Re6 Kc5+-) 18...Kb6+= 19.a4 (better 19.Rb1!? Nc6 20.Nd6+=) 19...Nc6=+ 20.Kc1 Nge7 (better 20...Rd8=+) 21.Rd6+/- Rad8?? (better 21...Kc5 22.Re4 Rhc8+/-) 22.Bd4 Ka6 23.Nc7 1-0. FeegLood (2760) - jimakos (2595), lichess.org, 2016.

    11.Bg2 fe3-/+ 12.Bd5 ed2 13.Nd2 c6 14.bc6 Nc6 15.0-0-0 Bg7 (15...0-0-0 16.Ne4=+) 16.Rhe1 Kf8 17.Nc4 Nge7 18.Nb6 (better 18.Bc6 Nc6 19.Rd7=) 18...Nd5?? (better 18...Rd8 19.Be6 Rd1 20.Kd1 Nb8=) 19.Na8+/- Nce7 20.a4?? (better 20.c4 Kf7 21.cd5 Ra8 22.d6+/-) 20...Kf7-/+ 21.Nc7? (better 21.c4!? Bh6 22.Kb1-/+) 21...Nc7-+ 22.Rd7 Ncd5 23.Ba3 Re8 24.c4 Nb4 25.Rb7? (25.Bb4 ab4 26.Rb7-+) 25...Bf8 (better 25...Nd3 26.Kd2 Ne1 27.Ke1 f5-+) 26.Bb4=+ ab4 27.Rb4 (27.Kc2 Kg8 28.Rb4 Rc8-/+) 27...f5 28.Rb7? (28.Kc2 Nc6 29.Rb7 Re7 30.Ree7 Be7-/+ (worse 30...Ne7 31.a5 Ke6 32.a6+/-)) 28...f4 (better 28...Ra8-+) 29.Kc2 g5 30.Kb3 (30.h4 gh4 31.h3 h5=) 30...Kf6 (30...Rd8 31.h4 h6 32.hg5 hg5 33.Rg1 Rd3 34.Kc2=) 31.a5 (31.Rb6 Kf5 32.Rb5 Kf6 33.Rb6 Kf7=) 31...Rc8 32.Rb6 (32.a6 Nc6 33.Ra1 Ke5=) 32...Kf5 (32...Nc6 33.h4 g4 34.a6-/+) 33.a6 (33.Rb5 Kg6 34.Re6 Kf7 35.Re4+=) 33...Nc6=+ 34.Rd1? (better 34.Rb5 Kf6 35.Rd1-/+) 34...Bc5?? (better 34...Na5 35.Ka4 Nc4 36.Rb5 Ke4 37.Re1 Ne3 38.Rg5 Kd4-+) 35.Rd5 Ne5 36.Rb5 f3 37.Rbc5?? (better 37.Rdc5 Rc5 38.a7+- (38.Rc5?! f2 39.Rc8 Nd7+/-)) 37...Rc5+/- 38.Rc5 f2 39.a7 (39.Rc8!? Nd7 40.a7+=) 39...f1Q= Attacks the isolani on c4 40.Re5 Ke5 41.a8Q Qh3 (41...Qb1 42.Kc3 Qc1 43.Kb4 Qb1 44.Kc5 Qg1 45.Kb5 Qb1 46.Kc5 Qg1 47.Kb5 Qb1 48.Kc5=) 42.Kb4+= Kf4 (42...Qd7!?+=) 43.Qd5+/- Kg4?? (better 43...Qc8+/-) 44.Qe6 Kh4 45.Qh3 (45.Qe4 g4 46.Qh7 Kg5 47.Qh3 gh3+-) 45...Kh3 46.c5 Kh2 47.c6 g4 48.c7 h5 49.c8Q g3 50.Kc3 (better 50.Qh8 g2 51.Qh5 Kg3+-) 50...h4 51.Kd3 h3 (51...g2 52.Qc7 Kh1+-) 52.Qc7 Kg2 53.Qc6 (53.Ke3 h2 54.Qc2 Kh3 55.Qf5 Kg2 56.Qf3 Kg1 57.Qg3 Kh1 58.Qf3 Kg1 59.Qf2 Kh1 60.Qf1) 53...Kg1 (53...Kf2 54.Qf6 Kg2 55.Ke3 Kh2 56.Qa1 Kg2 57.Ke2 Kh2 58.Kf3 g2 59.Kf2 g1Q 60.Qg1) 54.Ke3 h2 55.Qc1 Kg2 56.Qd2 (56.Qc2 Kh3 57.Qf5 Kg2 58.Qf3 Kg1 59.Qg3 Kh1 60.Qf3 Kg1 61.Qf2 Kh1 62.Qf1) 56...Kg1 (56...Kh3 57.Qd7 Kg2 58.Qd5 Kg1 59.Qd1 Kg2 60.Qf3 Kg1 61.Qg3 Kh1 62.Qf3 Kg1 63.Qf2 Kh1 64.Qf1) 57.Qe1 (57.Qd1 Kg2 58.Qf3 Kg1 59.Qg3 Kh1 60.Qf3 Kg1 61.Qf2 Kh1 62.Qf1) 57...Kg2 58.Qe2 Kg1 (58...Kh3 59.Qh5 Kg2 60.Qf3 Kg1 61.Qg3 Kh1 62.Qf3 Kg1 63.Qf2 Kh1 64.Qf1) 59.Kf3 h1Q (59...h1B 60.Kg3 Bd5 61.Qd1) 60.Kg3 (60.Kg3 Qh4 61.Kh4 Kh1 62.Kg3 Kg1 63.Qd1) 1-0. FeegLood (2780) - jimakos (2580), lichess.org, 2016.

    5.b5 Ne7

    6.c4 Ng6 7.cd5 Qd5 8.Nc3 Qc5 (8...Qd8 9.Nf3+=) 9.Nf3+= Bg4 10.Be2 Bf3 (better is 10...Qd6+=) 11.Bf3+– c6 12.a4 (better is 12.Na4!? Qb5 13.Be2+–) 12...Be7 (12...f5 13.0-0+/–) 13.Ba3 (13.Be4 Qc4+/–) 13...Qc4+= 14.Be7 Ne7 15.Be2 (15.Ne4 Nc8+/–) 15...Qe6+= 16.0-0 (16.Rb1 c5+=) 16...0-0 17.Qc2 (17.Rb1 c5+=) 17...Kh8 (17...f5 18.d4+=) 18.Bd3 (18.Rab1 Nd5+=) 18...f5= 19.f3 (19.Rab1 c5=) 19...Nd7 20.Ne2 (20.bc6 Nc6 21.Bb5 Nb4=) 20...Nd5 (20...Nb6 21.Qc5 cb5 22.Qb5=) 21.Bc4 (21.bc6 bc6 22.Rac1 Nb4=) 21...N7b6 (21...Rac8 22.Qd3 N7b6 23.e4 Nc4 24.Qc4=) 22.e4= fe4 23.fe4 Nc4 (23...Qg4 24.Bd5 (worse is 24.ed5 Nc4 25.Qd3 cd5-/+) 24...cd5 25.Ng3=) 24.Qc4 Nc7 (24...Nf4 25.Qe6 Ne6 26.bc6 bc6 27.Rac1 Rf1 28.Kf1=) 25.Qe6 (25.Qc3!?+=) 25...Ne6= 26.bc6 bc6 27.Rac1 c5 (27...Rf1 28.Kf1 c5 29.Rb1+=) 28.Nc3 (28.Rf5!?+/–) 28...h6 (28...Nf4 29.Rb1=) 29.Nd5 Rf1 (29...Nd4 30.Rf2=) 30.Rf1 (30.Kf1 g5 31.Ke2=) 30...c4 (30...Nd4 31.Rf7=) 31.Rf5+= Nc5 32.Re5 (32.Nb6 Rb8 33.Nc4 Ne4+=) 32...Na4= 33.Ne7 (better is 33.Ne3 c3 34.d4=) 33...Nb2-/+ 34.Ng6 (34.Rb5 Nd3-/+) 34...Kh7–+ 35.Nf4? (better is 35.Rb5 Nd3 36.Ne5 Ne5 37.Re5–+) 35...a4 36.Re7 (36.Nd5 a3 37.Nc3–+) 36...a3 37.Ne6 (37.Rg7 Kg7 38.Ne6 Kg6–+) 37...a2 38.Rg7 Kh8 (38...Kh8 39.h4 a1Q 40.Kh2 Qa5–+) 0–1. GuestXYLL – GuestVCJN, freechess.org, 2016.

    6.d4 e4 7.c4 Be6 8.Ne2 (8.Nc3 Nd7=) 8...Bg4 (8...dc4 9.Nbc3 Bd5 10.Nf4+=) 9.cd5 (9.Nbc3 f5=) 9...Qd5 (9...Nd5 10.Nbc3 Nc3 11.Bc3=) 10.Nbc3+= Qd7 (10...Qe6 11.Qc2 f5 12.h3 Be2 13.Be2+/–) 11.Qc2 (11.h3 Bf5+=) 11...Be2 (11...f5!?+=) 12.Be2+/– f5 13.0-0 Qe6 14.g4 (14.Bh5 g6 15.d5 Qd6+/–) 14...Qg6 15.Na4 (15.Kh1 fg4 16.Qe4 Qe4 17.Ne4+/–) 15...Nd5= (< 15...fg4 16.Qc7 Nd7 17.Qb7+–) 16.Qb3 Bd6?? (better is 16...c6=) 17.Qd5+– Qh6 18.Qb7 (18.h3 Qh3 19.Qe6 Kd8 20.f4 Qg3 21.Kh1 Qh3 22.Kg1 Qg3 23.Kh1 Qh3 24.Kg1 Qg3=) 18…Qh2 0–1. Rosner,Dirk – Kaschuetzke,G, corr, 1995.

    6.Nf3 Bf5 7.c4 Be6 8.cd5 Nd5 (8...Bd5 9.d4 e4 10.Nfd2=) 9.Be2 (9.e4 Nf4=) 9...Nd7 10.0-0 Bd6 11.d3 (11.e4 Nf4=) 11...0-0 12.Nbd2 Nc5 (12...a4!?=+) 13.d4= ed4 14.Nd4 Bf7 (14...Qd7 15.Nc4=) 15.Nc4 Ne4 (15...Be5 16.Rc1 Nd7 17.Bd3+/–) 16.Nd6+= Qd6 17.Nf5 Qd7 18.Bg4 (18.Nd4 Qd6=) 18...Qb5=+ 19.Rb1 Qc6 (19...Qc4 20.Bd4 Ndc3 21.Qf3-/+) 20.Bf3 (20.Qd4 Qc2=) 20...Qe6 (20...Rfe8 21.Qd3 Ng5 22.Be2=+) 21.Nd4 (21.Qc2 Rae8 22.Nd4 Qe5=) 21…Qe5 (22.Nb3 Qf5 23.Be4 Qe4=; 21...Qe8 22.Qc2 Nd6=). dgr – Zippy, ICS game, 1994.

    6.Nf3 Bf5 7.d3 Nd7 8.Be2 c6 9.c4 (9.Nc3 cb5 10.Nb5 Nc6=) 9...dc4 10.dc4 Qb6 11.0-0 0-0-0 (11...Rd8 12.Nbd2=) 12.Nbd2 (12.Bd3 e4 13.bc6 Qb2 (13...ed3?! 14.cd7 Kd7 15.Bd4+=) 14.cd7 Rd7–+) 12...Nc5 13.Ne1 (13.Bc3 Ne4 14.Qc1 a4=) 13...g6 (13...a4 14.Nef3=) 14.Qc1 (14.Nef3 a4=) 14...h5 (14...a4 15.Qc3=) 15.Kh1 (15.Nef3 a4=) 15...Rh7 16.f3 (16.f4 Na4 17.e4 Qe3=) 16…Bh6=+ (17.f4 Na4=+). willis – Zippy, ICS game, 1994.

    6.Nf3 Bf5 7.d4 e4 8.Nfd2 Nd7 =.

    6.Nf3 Bg4 7.Be2 =+.

    6.c4 Be6

    7.c5 Nd7 8.d4 Ng6 =.

    7.cd5 Nd5 8.e4 Nf4 =+.

    7.cd5 Nd5 8.Nf3 c5!? =.

    7.cd5 Nd5 8.Nf3 Nd7 9.Be2 Bd6 10.0-0 e4 (10...f5 11.Nc3=) 11.Nd4 Qe7 12.Ne6 (12.d3 ed3 13.Bd3 Rd8+=) 12...Qe6 13.d3 0-0 (13...Rd8!?+=) 14.de4+/– Ne7 (14...N5b6 15.Qc2+/–) 15.Nd2 Ne5 16.Nf3 (better is 16.f4 Nf7 17.Bc4+/–) 16...Ng4? (16...Nf3 17.Bf3 Be5 18.Bg4+/–) 17.h3 (17.Nd4!? Bh2 18.Kh1 Qe4 19.Bg4 Be5+–) 17...Nh6 18.Qc2+– Rae8?? 19.Bc4 Qf7 20.Bf7 Nf7 21.Nd4 Rc8 22.Nf5 Nf5 23.ef5 Rcd8 24.Rfd1 Rfe8 25.Qb3 b6 26.Rac1 Kf8 27.Rd6 Nd6 28.Rc7 Re7 29.Re7 Ke7 30.g4 Kd7 31.Qe6 Kc7 32.e4 h6 33.e5 fe5 34.Be5 Rd7 35.Bd6 Rd6 36.Qe5 a4 37.Qg7 Rd7 38.f6 Rg7 39.fg7 h5 40.g8Q hg4 41.Qd5 gh3 42.f4 h2 43.Kh2 Kc8 44.f5 Kc7 45.f6 Kc8 46.f7 Kb8 47.f8Q Kc7 48.Qc6 1–0. willis – Zippy, ICS game, 1994.

    7.cd5 Nd5 8.Nf3 e4 9.Nd4+= Qc8 (9...Bf7 10.Qg4 Bg6 11.Nc3 Nc3 12.Qe6 Be7 13.dc3=) 10.Ne6 (10.Bc4 Bg4 11.Qc2 Nb6 12.Qe4 Be7+–) 10...Qe6+/– 11.Be2 (11.Bc4 c6+=) 11...Bd6+= 12.0-0 (12.Bc4 0-0=) 12...0-0= 13.d3 Nd7 (13...ed3!? 14.Qd3 Rd8=) 14.de4+/– N5b6 (14...Qe4? 15.Bf3 Ne3 16.Be4 (16.fe3?! Qe3 17.Kh1 Nc5+–) 16...Nd1 17.Bd5 Kh8 18.Rd1+–) 15.Nd2 Nc5 16.Qc2 Rfe8 17.Nc4 (17.Bf3 Qd7+/–) 17...Qe4 (17...Ne4 18.Nb6 Bh2 19.Kh2 cb6 20.Bc4+–) 18.Qe4 Ne4 19.Nb6 cb6 20.Rfd1 Rac8 21.Rac1 Kh8? (21...Rc1 22.Rc1 Rd8 23.Bc4 Kf8 24.f3=) 22.Bf3 (better is 22.Rc8 Rc8 23.Bf3+–) 22...Rcd8?? (22...Rc1 23.Bc1 Bc7 24.Rd7 Nf2 25.Kf2+–) 23.Kf1 (23.Be4 Bh2 24.Kh2+–) 23...Nc5 24.g3 Na4 (25.Bd4 Ba3+/–). willis – Zippy, ICS game, 1994.

    5.b5 Bf5

    6.c4 Ne7 7.Nc3 d4 8.ed4 ed4 9.Nce2 c5 10.Ng3 Bg6 11.Be2 Nd7 12.d3 Nf5 13.Bh5 Ng3 14.hg3 Ne5 15.Bg6 Ng6 16.Qh5 Be7 17.Nf3 Qc7 18.Bc1 Bd6 19.Nh4 0-0-0 20.Ng6 Rhe8 21.Kf1 hg6 22.Qg6 Qe7 23.Qg4 Kb8 24.Bd2 f5 25.Qf3 Bc7 26.Rh5 g6 27.Bg5 Qf7 28.Bd8 gh5 29.Bc7 Kc7 30.Qf4 Kc8 31.b6 a4 32.Rb1 Re6 33.Rb5 Rc6 34.Qd2 Qe7 35.Qa5 Kd7 36.Rb1 Kd6?? 37.Qa8! Qd7 38.Qf8 Ke6 39.Qb8 1–0. Luzuriaga,Norberto Horacio – Gross,Gerald, email SOK–99–134, 1999.

    6.c4 Ne7 7.d4 Nd7 8.cd5 Nd5 9.Qf3 Be6 10.de5 fe5 11.Bc4 N7b6 (11...N7f6 12.Nc3+= (worse is 12.Be5 Bg4 13.Qg3 Nb4+=)) 12.Qh5+= Ke7 13.Ba2 e4 14.Qh4 Kf7 15.Qe4 Qe7 16.Qf3 Kg8 17.e4 Bf7 18.Ne2 (18.Bd5?! Bd5 19.Nc3 Be6+/–) 18...Nf6 19.Bf7 Qf7 20.Nd2 Rd8 21.Rd1 Nbd7 22.e5 Nc5 23.0-0 (23.ef6 Nd3 24.Kf1 Nb2 25.fg7 Bg7-/+) 23...Nfd7 24.Qf7 Kf7 25.Nc4 a4 26.f4 Ne4 27.Nd4 Ndc5 28.Rfe1 Be7 29.Re3 g5 30.f5 g4 31.Rde1 h5 (31...Ng5 32.f6 Nge6 33.Ne6 (33.fe7?! Rd4 34.Bd4 Nd4+–) 33...Ke6 34.fe7 Ke7 35.e6+–) 32.Re4 Ne4 33.Re4 Rhe8 34.Ne6 Rd1 35.Kf2 c6 36.bc6 bc6 37.Nf4 White prepares e6 37...Bc5 (37...Rb8 38.e6 Ke8 39.Nh5+–) 38.Ke2 Rg1 39.e6 Kf8 1–0. nordlicht (1990) – ramon33 (1865), gameknot.com, 2012.

    6.c4 Ne7 7.Be2 Ng6 8.d4 dc4 9.Bc4 ed4 10.ed4 (10.Qf3 Bc8 11.Bd4 c5=) 10...Bd6 11.Ne2 Nd7 12.0-0 Nb6 Black prepares the advance a4 13.Bd3 Bd3 14.Qd3 0-0 15.Nec3 (15.Qf3 Qd7 16.Nbc3 Rfe8=) 15...Re8 16.Nd2 a4 17.Rfe1 Re1 18.Re1 Qf8 19.Nc4 Nf4 20.Qf1 Nc4 21.Qc4 Qf7 22.Qf7 Kf7 23.Rd1 Ra5 24.d5 (24.g3!? Nd5 25.Nd5 Rb5 26.Nb4 Bb4 27.ab4 Rb4 28.Rd2=) 24...Be5+= 25.b6 cb6 26.d6 Ke8 27.Bc1 Kd7 28.Bf4 Bc3 29.Kf1 (29.Rd3 Be5 30.Be5 Re5-/+) 29...Rb5-/+ 30.h3 Rb3 31.Bc1 Be5 (31...b5!? 32.Rd3–+) 32.Ke2 g5 (32...Bd6 33.Bf4 Ra3 34.Rd6 Kc8 35.Be3+/–) 0–1. Bonetti,Shane – HIARCS 7, Blitz, 2001.

    6.Be2 Bc5 7.d4 Bd6 8.de5 Be5 9.Nc3 c6 10.Nf3 Qd6 11.Ne5 fe5 12.e4! Be6 13.bc6 bc6 14.ed5 cd5 15.Nb5 Qc6 16.Be5 Nf6 17.Nc7 Kf7 18.Bh5 g6 19.Bf6 Kf6 20.Qd4 (20.Qd4 Ke7 21.Na8+–) 1–0. orane – maxangst, caissa.com, 2007.

    6.Be2 c6 7.a4 Bd6 8.Ba3 Ne7 9.Nf3 0-0 10.0-0 Ng6 11.Bd6 Qd6 12.d3 Nd7 13.c4 d4 14.Nbd2 c5 15.Re1 Rf7 16.Nf1 b6 17.N3d2 Re8 18.Ng3 Be6 19.Nde4 Qe7 20.ed4 cd4 21.Qd2 (21.Bh5!?=) 21...Nf4=+ 22.f3 (22.Qc2 Rff8=+) 22...f5-/+ 23.Nf2 Qg5 24.Qc1 h5 (worse 24...Ne2 25.Re2 Qh4 26.Qd2=+) 25.Nh3? (better 25.Bf1!?-/+) 25...Nh3-+ 26.gh3 f4 (26...Qc1 27.Rac1 Nc5 28.Bf1-+) 27.Kh1 Nf6 28.Rg1 Qh4 (28...Bh3?! 29.Ne4 Qh4 30.Nd6=) 29.Ne4 Ne4 (29...Qh3?! 30.Ng5 Qf5 31.Nf7 Bf7 32.Rg2=) 30.de4 Qh3 (30...Rc7 31.Rg6-+) 31.Qd1 (31.Qa3 Rc8 32.Bf1 Qh4-/+) 31...Qh4 32.Ra2 Rd8 33.Bd3 Bh3 34.Bf1 Be6 35.Bd3 Rc7 36.Rag2 Rdd7 37.Rg6 Qh3?? (better 37...Qe7-+) 38.Bf1+- Qh4 39.Re6 Qd8 (39...Rc5 40.Rb6 Kh7 41.Qd2+-) 40.Bd3 (40.Re5 Qf6 41.Rh5 Qe7+-) 40...Kf7 (40...Rc5 41.Qf1+-) 41.Reg6 (41.Re5 Rc5 42.Rc5 bc5+-) 41...Kf8 42.Qf1 Qh4 43.Rb6 g5 (43...Rb7 44.Rb7 Rb7 45.Qg2+-) 44.Qg2 Rg7 1-0. Williams,Barry - Burns,Chris, NZL Wanganui Chess Club Rapid, 2001.

    6.Nf3 Bd6 7.Nc3 Ne7 8.Be2 0-0 9.0-0 Nd7 10.d4 (10.Re1 Nb6=+) 10...e4=+ 11.Nh4 (11.Nd2 Qe8=+) 11...Be6 12.f4? (better is 12.g3=+) 12...g5–+ 13.Bg4 f5 14.Nf5 Nf5 (14...Rf5?! 15.Bf5 Nf5 16.Qg4-/+) 15.Bf5 (15.Ne4 de4 16.d5 Nf6 17.Bf5 Bf5 18.fg5 Nd7–+) 15…Rf5 (16.g4 Rf6–+; 15...Bf5?! 16.Nd5 c6 17.Nc3 gf4 18.ef4–+) 0–1. Rapp,R – Eulenburg,M, corr TT/5004 BdF, 1996.

    6.Nf3 Bd6 7.c4 Ne7 =.

    5.b5 Nh6

    6.d4 e4 7.c4 Bg4 8.Qc2 c6 9.c5 Nd7 10.h3 Be6 11.Ne2 Be7 12.Nf4 Bf5 13.Qd1 0-0 (13...g6!?+=) 14.g4+/–.

    6.Be2 Be6 7.Nc3 Be7 8.Nf3 0-0 9.0-0 Bd6 10.Na4 Nd7 11.d4 e4 12.Nd2 c6 13.bc6 bc6 14.f3 Nf5 15.Kf2 Bh2 16.fe4 Qb8 17.ef5 Qg3# 0–1. matro – COMP, internet, 2001.

    6.Nf3 Nf5 7.d4 e4 8.Nfd2 Nd6 9.Qh5 g6 (9...Nf7 10.c4+=) 10.Qd5+/– c6 11.bc6 Nc6 (11...bc6 12.Qa2+/–) 12.Nc3 (12.Ne4 Bf5 13.Nc5 Qb6+–) 12...Ne7 13.Qb3 Bg7 (better is 13...f5+–) 14.Nde4 f5 (14...Ne4 15.Bb5 Kf8 16.Ne4+–) 15.Nc5 (15.Nd6 Qd6 16.Bc4 Bd7+–) 15...b6 16.Nd3 (16.Nb5 Nb7 17.Rd1 Nd5+–) 16...Bb7 (16...Bd7 17.Ne5 a4 18.Qb4 Be5 19.de5+–) 17.Rd1 (17.Ne5 Rc8+–) 17...Ne4 (17...a4 18.Qa2 Ba6+–) 18.Ne5 Nc6 (18...Be5 19.de5 Qc8+–) 19.Qf7 1–0. Janek – Tundja, internet, 2017.

    5.c4 ab4-/+

    6.ab4 Ra1 7.Ba1 Ne7 8.b5 c5 (8...Be6 9.c5=+) 9.Nf3 (9.d4 ed4 10.ed4 cd4 11.Bd4 Nf5=) 9...d4 (9...Bg4 10.h3 Bf3 11.gf3=) 10.ed4 (10.Bd3 Bg4=) 10...cd4 11.d3 (11.Bb2 d3=+) 11...Be6 (11...Ng6 12.Be2=+) 12.Be2= Ng6 13.0-0 Bc5 14.Re1 Nd7 (14...0-0 15.Nbd2=+) 15.Nfd2 (15.Nd4!? Qb6 16.Ne6 Bf2 17.Kh1 Be1 18.Ng7 Kf8 19.Qe1 Kg7 20.d4=) 15...0-0=+ 16.Nb3 b6 (16...Bb4 17.N1d2=+) 17.N1d2 Re8 (17...Nf4 18.g3 Ne2 19.Qe2=+) 18.Bf3 Nf4 19.Ne4 (19.Nc5? Nc5 (19...bc5?! 20.Qc2=) 20.Bc6 Bd7–+) 19...Bf8 (19...Bb4 20.Rf1=+) 20.g3= Ng6 21.Ned2 Nc5 22.Nc5 Bc5 23.Bc6 Bd7 24.Ne4 (better 24.Bd5!? Kh8 25.Qe2=) 24...Bc6-/+ 25.Nc5 (25.bc6 Qc7 26.Qh5-/+) 25...Ba8 (better 25...bc5!? 26.bc6 Qd6-/+) 26.Ne4 f5 27.Nd2 White fights for the Initiative 27...Qc7 (27...Qd7 28.Qh5=+) 28.Bd4 Qb7 (28...Rd8!? 29.Bc3 Rd3=+) 29.f3= Rd8 30.Be5 Rd3 Will f3 fall? 31.Qe2 Rd8 (better 31...Rd2 32.Qd2 Qf3=) 32.Bc3+– h5? (better 32...Nf8+–) 33.Qe6 Kh7 (33...Qf7 34.Qb6 Rd3+–) 34.Qf5 Kh6 (34...Rd2 35.Qh5 Kg8 36.Qg6 Rd8+–) 35.Re6 (35.Re6 Kh7 36.Rg6 Kg8 37.Qe6 Kf8 38.Bb4 Rd6 39.Bd6 Qe7 40.Qe7 Kg8 41.Qg7) 1–0. BeepBeepImAJeep (2545) – Clovis99 (2450), lichess.org, 2017.

    6.cd5 Qd5 7.ab4 Ra1 8.Ba1 Bb4 9.Nc3 Qa5 10.Nf3 Be6 11.Be2 Nc6 12.0-0 Nge7 13.Qb1 0-0 14.Rc1 Ra8 15.Nb5 Bf5 (15...Bd2 16.Nd2 Qd2 17.Bd3 Ra1 18.Bh7 Kh8 19.Qa1 Kh7 20.Nc7-+) 16.Qb3 Kh8 17.h3 (17.d4 e4 18.Nh4 Bg4-/+) 17...e4 (17...Bd2 18.Rd1 Bb4 19.Qc4-+) 18.Nh4 Bd2 19.Rd1 Bg6 (better 19...Qa2!? 20.Qa2 Ra2-/+) 20.Ng6=+ Ng6 21.Bb2 Bb4 22.Ra1 Qa1 23.Ba1 Ra1 24.Kh2 (better 24.Bf1=) 24...Bd6?? (better 24...Nge7=) 25.Nd6+- cd6 26.Qb7 h5?? (26...Nce7+-) 27.Qc6 Kh7 (27...Ra5 28.Qe4 Kh7 29.f4+-) 28.Qd6 (28.Bh5 Kh6 29.Bg6 Kg6 30.Qe4 Kf7+-) 28...Kh6 (28...Ra5+-) 29.Qd5 Ne5 30.Qe4 g5 (30...Ra2 31.Bh5 g6 32.f4 gh5 33.fe5 fe5 34.Qc6 Kg7 35.Qd7 Kf6 36.Qd6 Kf5 37.Qf8 Ke4 38.Qf3 Kd3 39.Qd5 Ke2 40.Qa2 Ke3 41.Qd5+-) 31.Qf5 (31.f4!? gf4 32.ef4 Ra5+-) 31...Kg7 32.Bd3 (better 32.f4!? gf4 33.ef4 Nf7+-) 32...Ra2 (32...Nd3 33.Qd3 Ra5 34.f4 gf4 35.ef4+-) 33.Qh7 (33.Be4 Ra6+-) 33...Kf8 34.Qh8 Kf7 35.Qh5 Kf8 36.Bc4! Nc4 37.Qh8 Kf7 38.Qc8 (38.Qd8 Ne3 39.fe3 Ra7+-) 38...Ne5 39.Qb7 (better 39.f4 gf4 40.ef4 Nf3 41.Kg3 Nd2 42.Qd7 Kg6+-) 39...Kg6 (39...Kf8 40.f4 Nf7+-) 40.Qb1 (40.Qb1 Kg7 41.Qa2+-) 1-0. GMferney28 (2325) - zumpili (2375), Rated Bullet game, lichess.org, 2020.

    6.cd5 Qd5 7.Nf3 Nc6 8.ab4 Ra1 9.Ba1 Nb4 (9...Bb4 10.Nc3 Qd6 11.Ne4-/+) 10.d4 Qa2 11.Nc3 Nc2 (11...Qa1 12.Bb5 Kd8 13.Qa1 Nc2 14.Kd2 Na1 15.Ra1 ed4 16.Nd4 c5+=) 12.Kd2-/+ Qa1 13.Qa1? (13.Qc2!? Qa5 14.Bd3 ed4 15.Nd4+=) 13...Na1–+ 14.Bc4 ed4 15.Nd4 Nh6 (15...Nb3 16.Bb3 Bd6 17.Ndb5+=) 16.Ra1= Nf5 (16...Bc5 17.Ra8 Ke7 18.Nd5 Kd6 19.Nb5 Kc6 20.Nbc7+=) 17.Nf5 (17.Ra8 Nd4 18.Rc8 (worse is 18.ed4 Kd7+=) 18...Kd7 19.Rf8 Nf3 20.Ke2 Ng1 21.Kf1 Rf8 22.Kg1=) 17...Bf5= 18.Ra7 (18.Ra8 Kd7=) 18...Kd7 (18...Bc8 19.Bd3 Kf7 20.Bc4 Kg6 21.Bd3 Kh6 22.Nb5+=) 19.Rb7 (19.Bb5 Ke6 20.Rb7 Bd6=) 19...Bd6 20.Bb5 (20.e4 Bg6=) 20...Ke6 21.f4 Kf7 (21...Rd8 22.Bc4 Kd7 23.Bd5=) 22.Bc4 Kg6 23.g3 (23.h3 Rd8 24.Ke2 Bc8=) 23...Rd8 24.Ke2 Bg4 ½–½. Scherbeyn – Torkkola,Jari, corr NLD–FIN, 1994.

    6.cd5 Qd5 7.Nf3 Nc6 8.Qc1 Be6 9.Be2 Nh6 10.0-0 Be7 11.d4 ed4 (11...0-0 12.de5 ba3 13.Na3 fe5 14.Bc4=) 12.Nd4=+ Nd4 13.Bd4 c5 (13...Qc6 14.Qb2=+) 14.Bf3 (14.ab4 Ra1 15.Ba1 cb4=) 14...Qd6 (14...Qc4 15.ab4 (15.Bb7? Qc1 16.Rc1 cd4 17.Ba8 b3-+) 15...Ra1 16.Ba1 Qc1 17.Rc1 cb4 18.Rc7=+) 15.Bb2 (15.ab4 Ra1 16.Ba1 Ng4 17.Bg4 Bg4 18.bc5 Qc5=) 15...Rb8 (15...Ng4!? 16.Bg4 Bg4 17.ab4 Ra1 18.Ba1 cb4-/+) 16.ab4 cb4 17.Ra7 (17.Rd1 Qc5 18.Qd2 0-0=) 17...0-0 18.Rb7 (18.Rd1 Rfc8 19.Qd2 Qd2 20.Rd2 Rc7-/+) 18...Rb7 19.Bb7 Qb6 20.Be4 Rc8 21.Qd1 Nf7 22.Nd2 Rd8 23.Qe2 Ng5 24.Bb1 Qc5 25.Ne4?? (better 25.Rd1=) 25...Ne4-+ 26.Be4 Bc4 27.Qc2 Bf1 28.Bh7? (28.Kf1 Qh5 29.g3 Qh2 30.Qc4 Kh8 31.Qf7 Qh3 32.Ke1-+) 28...Kh8 29.Kf1 Qc2 30.Bc2 Rd2 (30...Rd2 31.Bf6 Bf6-+) 0-1. pacalmisu (2200) - mecker (2275), Rated Blitz game, lichess.org, 2015.

    6.cd5 Qd5 7.Qh5 g6 8.Qf3 Qb3–+.

    5.Nf3 ab4

    6.ab4 Ra1 7.Ba1 Bb4 8.c3 Ba5 9.Qa4 (9.d4 e4 10.Nfd2 Bf5+=) 9...c6 10.c4 dc4 11.Bc4 b5 12.Bb5? (better is 12.Qb3!? bc4 13.Qb8-/+) 12...cb5–+ 13.Qb5 Bd7 14.Qb7 (14.Qe2 Ne7–+) 14...Ne7 15.Bc3 Bb6 16.Qe4 Bb5 17.Na3 Bd3 18.Qa4 Nbc6 19.Bb4 (19.Nc4 e4 20.Nd4 Bd4 21.ed4 Qd5–+) 19...Qd5 20.Qa8 (20.Bc3–+) 20...Kf7 21.Qa4 (21.Qh8 Qa2 22.Ne5 fe5–+) 21...Nb4 (21...Qa2 22.Be7 Ke7 23.g3–+) 22.Qb4 Rc8 23.Qb2 Bd4! (23...Bd4 24.Nd4 Rc1 25.Qc1 Qg2 26.Qc4 Bc4 27.Nc4 Qh1 28.Ke2 ed4–+) 0–1. Drexhage,Ulrich (1845) – Wuerzebesser,Ray (2240), RSX – FSO1 remoteschach.de, 2005.

    6.ab4 Ra1 7.Ba1 Bb4 8.Be2 Ne7 9.0-0 Bd6 (9...0-0 10.d4 e4 11.Nfd2-/+) 10.c4 c6 11.cd5 cd5 12.Nc3 Nbc6 13.Qb3 e4 14.Nd4 Nd4 15.ed4 Bc7 16.Bb5 Bd7 (16...Kf8!?=+) 17.Nd5= 1-0. Tijdverspilling (2515) - manitodeplomo (2445), Rated Bullet game, lichess.org, 2016. (=1.a3 A00: Irregular Openings 1...d5 2.b4 e5 3.Bb2 f6 4.e3 a5)

    4.e3 a6

    5.c4 c5 6.bc5+/– Bc5 7.cd5 Qd5 8.Nf3 Bg4 9.Be2 (9.Nc3 Qd7+=) 9...Ne7 (9...Nc6!?=) 10.Nc3+= Qc6 11.Rc1 0-0 (11...Bb6!?+=) 12.0-0 Nd7 13.Nd4?? (better is 13.d4 Ba7 14.Ne5 Ne5 15.Bg4 Ng4 16.Qg4+–) 13...Be2?? (better is 13...ed4 14.Bg4 dc3 15.Qb3 Kh8 16.Qc3 Ne5 17.Qc5 Qc5 18.Rc5 Ng4-/+) 14.Nde2 (better is 14.Qb3 Rf7 15.Nc6 (15.Nde2?! e4+=) 15...Bf1 16.Ne7 (16.Rf1?! bc6 17.Ne4 Rb8+–; worse is 16.Kf1 bc6 17.Ne4 Rb8+–) 16...Be7 17.Nd5+–) 14...Nf5 (14...Qe6 15.d4 Bd6 16.Ne4+=) 15.Na4 Qd5? (15...Nh4 16.Qb3 Rf7 17.f3+/–) 16.Nc5?? (better is 16.e4 Qe4 17.Nc5 (17.Rc5?! Nc5 18.Nc5 Qc4+=) 17...Nc5 18.Rc5+–) 16...Nc5+/– 17.d4 ed4 18.Nd4?? (better is 18.Nf4!? Qe5 19.g4 (worse is 19.ed4 Qf4 20.Rc5 Rae8+=) 19...Ne3 20.fe3 Qe3 21.Kh1+/–) 18...Nh4 (18...Rad8 19.Nf5 Qf5 20.Qc2 Qc2 21.Rc2=) 19.f3 (19.Qg4 Ng6+/–) 19...Rfe8 20.e4 Qg5 21.Qc2 (21.g3 b6 22.f4+/–) 21...Nd3 22.Rcd1 (22.Qb3 Kh8 23.Rc2 Nb2 24.Qb2 Rad8+=) 22...Rec8 (better is 22...Ng2!? 23.Qg2 Qg2 (23...Nb2?! 24.Qg5 fg5 25.Rb1=) 24.Kg2 Nb2-/+) 23.Qd2 Nf4 g2 seems the pivot of the position (23...Qd2!? 24.Rd2 Nb2 25.Rb2 b5=) 24.g3+/– Nh3 25.Kh1 Qh5?? (better is 25...Qd2 26.Rd2 Ng6+/–) 26.gh4+– Qf3 (26...Rd8 27.f4 Qh4+–) 27.Rf3 1–0. Fournier,Frederic (1795) – Lubgins,Eduards Ottovich, Active, 2012.

    5.c4 Bf5 6.Nf3 (6.d4 ed4 7.Bd4 Nc6=) 6...Bb1 (6...a5!? 7.ba5 Ra5=) 7.Rb1+= e4 (7...a5 8.ba5 Ra5 9.Qb3+/–) 8.Nh4 (better is 8.Nd4 c6 9.Qc2+/–) 8...f5?? (better is 8...Ne7+=) 9.Qh5+– g6 (9...Kd7 10.Qf5 Ke7 11.cd5 Qd7+–) 10.Ng6 (10.Ng6 hg6 11.Qg6 Kd7 12.Qf5 Ke8 13.Bh8+–) 1–0. Wall,Bill – Moofph, internet, 2001.

    5.d3 b5 6.Nd2 Nh6 7.h3 Nc6 8.Ngf3 Bf5 9.Be2 e4 10.Nd4 Nd4= 11.Bd4 Bd6 12.0-0 0-0 13.c4 bc4 14.dc4 c6 (14...c6 15.cd5 cd5+=). BCC – xzara, ChessWorld.net, 2005.

    5.d4 Nc6 6.c4 Nge7 7.Nf3 Bg4 8.b5+= ab5 9.cb5 e4 10.bc6+/– Nc6 11.h3 Bf3? 12.gf3+– f5 13.Nc3 Be7? 14.Qb3 0-0 15.Qb7 Rb8 16.Qc6 Rb2 17.Qd5 Kh8 18.Qd8 Rd8 19.fe4 f4 20.Nd5 fe3 21.fe3 Bh4 22.Kd1 Bg5 23.Rg1 h6 24.Rg3 Rf8 25.Bd3 Bh4 26.Rg4 Bg5 27.Nf4 Rd8 28.Ne6 Be3 29.Nd8 Rd2 30.Ke1 Rd3 31.Ke2 Bd4 32.Kd3 Ba1 33.a4 Bf6 34.Ne6 h5 35.Rg1 c6 36.a5 (36.a5 Bh4 37.Rf1+–) 1–0. hardgamer – Vauban, internet, 2006.

    5.d4 ed4 6.Bd4=.

    5.Be5 fe5-/+ 6.Qh5 Ke7 7.Nf3 (7.Qe5 Kf7-/+) 7...Nc6 (7...e4 8.Qe5 Kf7 9.Ng5 Kg6 10.h4–+) 8.b5 (8.Ne5 Ne5 9.Qe5 Kf7–+) 8...ab5 (8...Nf6 9.Qg5 h6 10.Qg3 ab5 11.Ne5 Ne5 12.Qe5 Kf7 13.Bb5–+) 9.Bb5 (better is 9.Ne5 Nf6 10.Ng6 Ke8 11.Qh4–+) 9...Nf6 10.Qh4 (10.Qg5 e4 11.Nh4 Qd6–+) 10...Qd6 (10...e4!? 11.Ng5–+) 11.Bc6 bc6 (11...Qc6 12.Nc3 Qd6 13.e4–+) 12.Nc3 (12.d4 e4 13.Ne5 g5–+) 12...Be6 (12...e4 13.Nd4–+) 13.0-0 (13.a4 Ke8–+) 13...h6 (13...Bg4 14.Qg3 Bf3 15.Qf3 Ra3 16.Ra3 Qa3 17.Qg3–+) 14.d4 (14.Qg3 e4 15.Ne5 Bf5–+) 14...e4 (14...ed4 15.ed4 Ra3 16.Ra3 Qa3 17.Ne5 Qc3 18.Ng6 Kd7 19.Nh8–+) 15.Ne5 Bf5 (15...g5 16.Qg3 Ke8 17.f3–+) 16.f4 (16.Qg3 Ke8–+ (16...Ra3?! 17.Ra3 Qa3 18.Nc6 Kf7 19.Nd5 Nd5 20.Qe5+=)) 16...Ke6 (better is 16...ef3!? 17.Rf3 A) 17...Ra3?! A1) 18.Rf5?? Ra1 (18...Rc3 19.Ng6 Kf7 20.Nh8 Kg8 21.Ng6+–) 19.Rf1 Rf1 20.Kf1 Rh7–+; A2) 18.Ra3 Qa3 19.Rf5=; B) 17...Bc2–+) 17.g4-/+ Ng4 18.Qh5?? (18.Ng4 Ra3 19.Ra3 Qa3 20.Ne5 Qc3 21.Qd8 Qe3 22.Kh1=) 18...g6!–+ (18...Ne5?! 19.Qf5 Kf5 20.fe5 Ke6 21.ed6 Bd6 22.a4–+) 19.Ng6 (19.Qg6 Bg6) 19...Bg6 (better is 19...Rg8 20.Nf8 Qf8 21.Kh1 Ne3 22.Rg1–+) 20.Qg6?? (20.f5 Kd7 21.fg6 Ne3 22.Qh3 Kd8 23.Qe3 Qg6 24.Kh1 Ra3 25.Ra3 Ba3 26.Nd5 cd5 27.Qa3–+) 20...Nf6 21.f5 Kd7 (better is 21...Ke7 22.Ne4 de4 23.c4–+) 22.Qf7 (22.Kh1 Rg8 23.Qf7 Be7–+) 22...Be7 23.Ne2 Raf8 24.Qe6 Qe6 25.fe6 Ke6 26.a4 (26.Nf4 Kd6 27.a4 Ng4–+) 26...Rhg8 27.Kh1 Bd6 (27...Ng4 28.Nf4 Kd6 29.Rae1–+) 28.a5 (28.Nf4 Bf4 29.ef4 Kf5–+) 28...Ra8 (28...Ng4 29.Rf8 Rf8 30.Nf4 Kd7 31.Ng2–+) 29.a6 (29.Nf4 Bf4 30.Rf4 Ng4–+) 29...Ra7 (better is 29...Ng4 30.Nf4 Ke7 31.Ng2 Nh2 32.Rf5–+) 30.Rfb1 (30.Nf4 Ke7 31.c4 dc4–+) 30...Rga8 (30...Ng4 31.Ng3–+) 31.Kg2 (31.Rg1 Ra6 32.Raf1 Ra2–+) 31...Ra6 (31...Ra6 32.Ra6 Ra6–+) 0–1. Trkn – Lazar, itsyourturn.com, 2000.

    5.c4 dc4

    6.Bc4 Nc6=.

    6.Bc4 Be6?? 7.Be6+– 1–0. Fournier,Frederic (1815) – rimassada (1820), Active (5/0), 2005.

    6.Bc4 Ne7 7.Nf3 Nbc6 (7...b5 8.Bb3=) 8.0-0 (8.Qb3 Qd7+=) 8...Bd7 (8...Bg4!?+=) 9.Qb3 The mate threat is Bf7 9...Ng6 10.Bf7 Ke7 11.Bg6 (better 11.d4!?+–) 11...hg6= 12.d4 e4 13.Nfd2 f5 (13...Be6 14.Qc2 f5 15.Nb3=) 14.Nc3 (14.d5 Na7+–) 14...Na7? (14...Ke8!?=) 15.Nc4 (15.f3 ef3 16.Nf3 Nb5+–) 15...Be6 16.d5 Bf7 (16...Bd5? 17.Rfd1 (17.Nd5?! Qd5 18.Rfd1 Qe6=) 17...c6 18.Nd5 cd5 19.Ne5+–) 17.Ne5 Qd6 18.Ne2 (better 18.f4+=) 18...g5?? (18...Nc6 19.Nc6 bc6 20.h3=) 19.Nd4?? (19.Ng3!? Ke8 20.Nf7 Kf7 21.f3+–) 19...g6 (better 19...Qe5 20.Nc6 Nc6 21.Be5 Ne5=+) 20.Nf7?? (20.Ne6 Rh5 21.Rfd1 Nb5+–) 20...Kf7 (20...Qh2) 21.f4 g4?? (better 21...Rh6+–) 22.Ne6+– Rh7 23.Be5 Qb6 (23...Qd7 24.Nc7 Re8+–) 24.Ng5 (better 24.Nc7 Bd6 25.Na8+–) 24...Kg8 (24...Ke8 25.Nh7 Bd6+–) 25.Nh7 (25.d6 Rf7 26.Qf7) 25...Kh7+– 26.Rac1 (26.Rac1 Bd6 27.Ba1+–) 1–0. BeepBeepImAJeep (2575) – lefou54, lichess.org, 2017.

    6.Bc4 Bf5 7.Nc3 Nc6 8.Qb3 Qe7?? (better 8...Nh6+/-) 9.Bg8+- Rg8 10.Qg8 0-0-0 11.Qb3 Bd3 (11...Nd4 12.ed4 ed4 13.Nce2 d3+-) 12.Nd5 Rd5 (12...Qd7 13.Qd3 Qd5 14.Qd5 Rd5 15.Ne2+-) 13.Qd5 e4 (13...Qd7 14.Qd7 Kd7 15.Bc3+-) 14.Nh3 h5 (14...Bb5 15.Nf4+-) 15.Nf4 h4 (15...Qe8 16.Qe6 Kd8 17.Qg8+-) 16.Qg8 Bb5 (16...Qd8 17.Rc1 Be7 18.Qd8 Kd8 19.Nd3 ed3 20.Rc3+-) 17.Ng6 Qd6 18.Nf8 Qd3 19.Ne6 Kd7 20.Nc5 (20.Nc5 Ke7 21.Qg7 Ke8 22.Qg8 Ke7 23.Qe6 Kf8 24.Nd3 Ba4 25.Nf4 Nd4 26.Qf6 Ke8 27.Bd4 c5 28.Nd5 Kd7 29.Qe7 Kc6 30.Qe6 Kb5 31.Nc7) 1-0. PierrE – Beelm, internet, 2022.

    5.c4 c6

    6.cd5 cd5 7.Nf3 Nc6 8.d3 Bd6 9.Be2 Nge7 10.Nbd2 0-0 11.0-0 Be6 12.Rc1 Rc8 13.e4 d4 14.Nb3 Na7 15.Qd2?? (15.Rc8 Qc8 16.Nfd2 Qc7=) 15...Qd7 (better is 15...Bb3 16.Rc8 Nac8–+) 16.Rc8 Rc8 17.Rc1?? (17.Na5 Nac6 18.Nc6 Nc6+=) 17...b5 (better is 17...Bb3 18.Rc8 Nac8–+) 18.Rc8+= Qc8 19.Qc1?? (19.Qd1 Qc7+=) 19...Qc1 (19...Bb3 20.Qc8 Nac8 21.Bc1–+) 20.Bc1?? (better is 20.Nc1 Nac6 21.Kf1-/+) 20...f5 (better is 20...Bb3 21.h4 Nac6–+) 21.Nfd2 f4 22.f3 Nac6 23.Bd1 g5 24.h3 h5 Black intends g4 25.Kf2 Kg7 26.Nc5 (26.Bc2 Kf6-/+) 26...Bc8 (26...Bc5!? 27.bc5 Na5–+) 27.Ndb3-/+ Kg6 28.Bb2 g4 (better is 28...a5!? 29.ba5 Na5 30.Na5 Bc5-/+) 29.hg4 hg4 30.fg4 Kg5 31.Bc1 (31.g3 A) worse is 31...Bg4 32.gf4 ef4 33.Bg4 Kg4 34.Bd4+– (34.Nd4?! Bc5 35.bc5 Ne5=); B) 31...Ng6+=) 31...Ng6 32.Bd2 Nb8 (32...Kh4 33.Be1 Bc5 34.Nc5=) 33.Na5 (33.g3!?+=) 33...Bg4+= 34.Bg4 Kg4 35.Nab7 Bc7 36.Ne6 Bb6 37.Nbc5 Nh4 38.Bc1 a5 (38...Bc5 39.bc5 Ng6 40.Bd2=) 39.Bd2 (39.a4 Bc5 40.Nc5 ab4 41.ab5 Ng6+/–) 39...ab4 (39...Bc5 40.Nc5 a4 41.Nb7+=) 40.ab4 (better is 40.Bb4 Ng6 41.Nb7+=) 40...Nc6?? (better is 40...Bc5 41.Nc5 Ng6+=) 41.Nd7+– Ba7 (41...Bd8 42.Nd8 Nd8 43.Ne5 Kg5+–) 42.Nf6 1–0. Fournier,Frederic – Johanna2, Partie evaluee, 7m + 0s, 2009.

    6.cd5 cd5 7.Nf3 Nc6 8.d3 Nge7 9.Be2 Ng6 10.Nbd2 Be7 11.0-0 0-0 12.Rc1 Bd7 13.Qb3 Be6 14.e4 (14.Ne4!?=) 14...Qd7 15.ed5 Bd5 16.Qc2 Nf4 17.g3?? (better is 17.Ne4-/+) 17...Ne2–+ 18.Kg2 Nc1 19.Qc1 Rfc8 20.Qa1 Nd8 21.Kg1 Nf7 22.d4 e4 23.Nh4 Ng5 24.Ng2 (24.Rc1 Rc1 25.Qc1 Rc8–+) 24...Nf3 (better is 24...Rc2–+) 25.Nf3 ef3 26.Nf4 (26.Ne3 Be4–+) 26...g5 (better is 26...Bc4 27.Rc1 g5 28.Rc4 Rc4 29.Nd3–+) 27.Nd5 Qh3 (better is 27...Qd5 28.Re1 Bd6–+) 28.Ne7?? (better is 28.Ne3 Rc2 29.Re1–+) 28...Kh8 29.Nc8 (29.Ng6 hg6 30.Re1 Qg2) 29…Qg2 0–1. Fournier,Frederic (1900) – Iobel, Active, 2008.

    6.Nf3 Be6 7.Qb3 b5 8.c5 a5 9.Be2 ab4 10.ab4 Ra1 11.Ba1 g5 12.Qa3 Bg7= 13.Qa7 Ne7 14.0-0 0-0 15.d4 e4 16.Nfd2 Ng6 17.Nb3 f5=+ 18.Na5 g4 19.Nd2 f4-/+ 20.Ne4? de4–+ 21.d5 Ba1 22.de6 f3 23.Ra1?? fe2 (23...fe2 24.h3 Qd1 25.Rd1 ed1Q (25...ed1R?! 26.Kh2–+; 25...ed1N? 26.e7 Re8 27.Nb7+–) 26.Kh2 gh3–+) 0–1. mgriffin (1705) – wecenbarger (1795), net–chess.com, 2001.

    5.c4 d4

    6.ed4 ed4 7.Qh5 g6 8.Qe2 Kf7=.

    6.Nf3 b6 7.ed4+/– e4 8.Ng1 c5 (8...f5 9.d3 Nf6 10.Qe2+/–) 9.dc5 bc5 10.Qh5 g6 11.Qe2 Bf5 (better is 11...Bb7+/–) 12.d3?? (better is 12.g4 Be6 13.Bg2+–) 12...Qd3= 13.Qd3 (13.Bc3 Nc6 14.b5 Nd4 15.Qd3 ed3 16.Bd4 cd4=) 13...ed3 14.Kd1 (14.Nf3 Ra7=) 14...Bg7 (14...cb4 15.ab4 Bb4 16.Nc3-/+) 15.Kd2 (15.Nc3 Ne7=) 15...Ne7 (better is 15...Nc6 16.Bc3 Ne5-/+) 16.Bd3+= Bd3 (16...Nbc6 17.Bf5 (17.bc5? 0-0-0 18.Ke1 Bd3–+) 17...Nf5 18.bc5 0-0-0 19.Kc3=) 17.Kd3+/– cb4 18.ab4 0-0 (18...Nbc6 19.Bc3+/–) 19.Nf3+– Nbc6 20.b5 ab5 21.cb5 Ra1 22.Ba1 (22.bc6? Ra2 23.Bd4 Nc6–+) 22...Ne5 23.Kc2 (23.Be5 fe5 24.Nbd2 Rd8 25.Kc4 Rc8 26.Kb3 Rb8+–) 23...Ng4 (23...Nf3 24.gf3 Nf5 25.Nd2+/–) 24.Rf1 Rc8 25.Kb3 Rb8 26.Nc3 f5 27.h3 Nh6 (better is 27...Nf6+–) 28.Kb4 (28.Rd1 Nf7 29.Kc4 h6+–) 28...Nc6? (better is 28...Bc3!? 29.Kc3 Rb5+=) 29.Kc5+– Ne5 (29...Na5 30.Rb1+–) 30.Ne5 Be5 1–0. GuestVKSS – GuestXQFT, freechess.org, 2017.

    6.Nf3 de3!? 7.fe3 a5=.

    6.Nf3 Bg4 7.ed4 ed4 8.Qe2 Ne7 9.Qe4 Pawn d4, live or die! 9...Bf3 10.Qf3 Nbc6 11.g3 (11.Be2 a5+=) 11...Qd6 12.Bg2 (12.Qh5 g6 13.Qe2 0-0-0=) 12...Qe5 (12...Qe6 13.Qe2 Qe2 14.Ke2=) 13.Qe2 (13.Kd1 Qe6=) 13...Qe2 14.Ke2 0-0-0 15.d3 Ne5 16.h3 g5 17.Nd2 h5 18.Nf3 (18.f4 Nf5 19.Ne4 gf4 20.gf4 Rg8+=) 18...N5c6+= 19.b5 ab5 20.cb5 Nb8 (20...Ne5!?+/–) 21.Bd4+– Bg7 22.Rac1?? (22.h4 g4 23.Be3 gf3 24.Bf3+=) 22...b6?? (better is 22...g4 23.Rc4 gf3 24.Kf3 Rhe8+=) 23.Bb6+– (23.Bb6 Nd5 24.Be3+–) 1–0. Margraf,A – Auaerladscheider, Fugen, 1989.

    5.c4 Be6

    6.cd5 Bd5 7.Nc3 Bc6 8.Nf3 Bd6 9.Be2 Nd7 10.0-0 Ne7 11.d3 0-0 12.Qc2 Nb6 13.Qd2 Ned5 14.Nd5 Nd5 15.d4 e4 16.Ne1 f5 17.g3 Qg5 18.Ng2 Rf6 19.f4 Qg6 20.Nh4 Qf7 21.Bc4 b5 22.Ba2 Qe7 23.Qf2 Kh8 24.Rac1 Bb7 25.Rfe1 Rh6?? (better is 25...a5 26.ba5 Ra5-/+) 26.Bd5 (26.Nf5!? Qf6 27.Nh6 Qh6+–) 26...Bd5 27.Nf5 Qf6 28.Nh6 Qh6 29.Re2 Rf8 30.Qg2 Qh5 31.Rce1 Qf5 32.Bc1 Bc4 33.Rf2 Qd5 34.g4 Bd3 35.h3 Rf6 36.g5 Rf8 37.Qg4 Qb3 38.Qd1 Qe6 39.Qg4 Qd5?? (39...Qb3 40.g6 h6+–) 40.f5+– Qb3 41.f6 g6 (41...gf6 42.Rf6 (42.gf6? Rg8–+) 42...Rg8 43.Rf2+–) 42.Qd1 (42.Bb2!? Qd5+–) 42...Qe6 43.Qg4 Qd5?? (43...Qb3 44.Bb2 Qd5+–) 44.h4 Qb3 45.h5 gh5 46.Qh5 Qe6?? (46...Qd5 47.Qh4 Rg8+–) 47.g6 (47.g6 Rf7 48.d5+–) 1–0. Fournier,Frederic (1640) – Vorlonminbari5 (1760), KasparovChess.com unrated blitz gam, 2002.

    6.cd5 Bd5 7.Nc3 Nc6 8.Nd5 Qd5 9.Nf3 0-0-0 10.Qc2 e4 11.Bc4 Qd6? (better is 11...Qf5 12.d4 ed3+/–) 12.Qe4+– Nh6 13.0-0 g5? (13...Qe7 14.Qc2 Ne5 15.Ne5 fe5+–) 14.Qe6 Qe6 15.Be6 Kb8 16.Bf6 Rd6 (16...g4 17.Bg4 (worse is 17.Bd8 Nd8 18.Nd4 Bg7+–) 17...Ng4 18.Bh8 Bb4 19.ab4 Rh8 20.Rfb1+–) 17.Bh8 Re6 18.Ng5 Rg6 19.f4 Bg7 20.Bg7 Rg7 21.Rac1 Nf5 22.Rc5 Nd6 23.Ne6 Rd7 24.d4 Ne7 (24...Kc8 25.Rg5+–) 25.Nf8 Rd8 26.Nh7 b6 27.Re5 Nef5 28.Nf6 Kb7 (28...Nc4 29.Rf5 Ne3 30.Re5 Nf1 31.Kf1 Rd4 32.f5+–) 29.g4 Ng7 30.Re7 Nge8 31.Ne8 Ne8 32.g5 Kc6 33.f5 Kd6 34.Re6 (better is 34.f6!? Nf6 35.gf6 Rf8+–) 34...Kd7 35.Re5 1–0. Bonoldi,Fabio (1880) – Garcia,Sergio, 17. LSS No Engine Cup Preliminary, 2010.

    6.cd5 Bd5 7.Nc3 Bf7 (7...Be6 8.Nf3=) 8.Nf3+= Bd6 (8...Ne7 9.d4 ed4 10.Nd4+=) 9.Ne4 (9.d4 Nc6+=) 9...Ne7 (9...Bd5 10.Qc2+=) 10.d4 ed4 11.Qd4 (11.Nd6 Qd6 12.Nd4 Nd7+=) 11...Nec6 (11...Nbc6 12.Nd6 cd6 13.Qg4+=) 12.Nd6+/– cd6 (12...Qd6 13.Qd6 cd6 14.Rc1+/–) 13.Qg4 0-0 14.Rd1 Qc7 (14...Re8!?+/–) 15.Bf6+– Bg6 (15...Bb3 16.Bc4 Bc4 17.Qc4 Qf7 18.Qf7 Rf7 19.Bb2+–) 16.Bb2 Nd7 (16...b5 17.Qe6 Kh8 18.Nh4+– (worse is 18.Rd6 Re8 19.Qd5 Be4+–)) 17.Qe6 Bf7 18.Qd6 Qd6 19.Rd6 Nb6 (19...Rfd8 20.Rd1+–) 20.Ne5 (20.Nd4 Na4 21.Ba1 Nd4 22.Bd4 Rad8 23.Rd8 Rd8+–) 20...Ne5 (20...Rfc8 21.Nf7 Kf7 22.Be2+–) 21.Rb6 Nc4 22.Bc4 Bc4 23.Rb7 a5 24.Rg7 1–0. pierred – jammboy, ChessWorld.net, 2006.

    5.d3 c5

    6.bc5 Qa5 7.Bc3+= Qc5 8.d4 ed4 9.Bd4 Qa5 10.Qd2 Qd2= 11.Nd2 Nh6 12.Ngf3 Nc6 13.h3 Bd6 14.Be2 Bf5 15.c3 0-0 16.0-0 Rae8 17.Nh4 Bd7= 18.Rfb1 Nd4 19.cd4. minn (2000) – malaysianisme, net–chess.com, 2004.

    6.bc5 Bc5 7.d4 ed4 8.Bd4 Bd4 9.Qd4 Nc6 10.Qd2 Nh6 11.h3 0-0 12.Nf3 Be6 13.Be2 Ne5 14.Ne5 fe5-/+ 15.0-0 Qg5 16.e4 Rf4 17.ed5=+ Bh3 18.g3 (18.g3 Nf5 19.Qc3 Bf1 20.Bf1–+) 0–1. minn (2000) – malaysianisme, net–chess.com, 2004.

    6.bc5 Bc5 7.Be2 Be6 8.Nf3 Nc6 9.0-0 Nge7 10.Nbd2 0-0=+ 11.Re1 Ng6 12.h3 h6 13.c3 f5 14.d4= Bd6 15.de5 Nce5 16.Ne5 Be5 17.Bh5 Nh8 18.f4 Bf6 19.Be2? b5 20.Nf3= Rb8 21.Nd4 Qb6 22.Kh1 g6 23.Bf3 Bf7 24.Rb1 Rfe8 25.Qd2 a5 26.Ba1 g5?? 27.Rb5+– Qa6 28.Rb8 Rb8 29.Kh2 g4 30.hg4 fg4 31.Bg4 Ng6 32.Nf5 Kh7 33.Rh1 a4? 34.Kg3 Bg7 35.Ng7 Kg7 36.c4 Kg8 37.Rh6 Qc4 38.Bf5 Rb6 39.Bg6 Rg6 40.Rg6 Bg6 41.Qd4 Qd4 42.Bd4 Be4 43.Kg4 Kf7? 44.g3 Kg6 45.Be5 Bf5 46.Kh4 Bc2 47.g4 Kf7 48.f5 Be4 49.Kg5 Bc2 50.f6 Be4 51.Kh6 Bg6 52.g5 Be4 53.Bd4 Bg6 54.Bc5 Be4 55.Be7 Bg6 56.Bc5?? Be4= ½–½. Queenwomen – michaelanthony, ChessWorld.net, 2005.

    6.Nf3 cb4 7.ab4 Bb4 8.Bc3 Bd6 9.Be2 Nh6 10.h3 Nf5 11.Ra5 Be6 12.Nbd2? d4! 13.ed4 ed4 14.Rf5 dc3 15.Rf6 cd2 16.Qd2 Qf6 17.0-0 0-0 18.Rb1 Qg6 19.Rb7 Bf4 20.Qc3 Bh3 21.g3 (21.g3 Bg3! 22.Qg7 Qg7 23.Rg7 Kg7 24.fg3–+) 0–1. minn (2000) – malaysianisme, net–chess.com, 2004.

    5.Nf3 Nc6

    6.c4 dc4 7.Bc4 Nh6 8.0-0 Bg4 9.h3 Bh5 10.Be2 g6 11.Nc3 Qd7 12.Nh2 (12.d4 0-0-0+=) 12...0-0-0? (better is 12...Be2!? 13.Qe2 Be7=) 13.g4+/– (13.Bh5?! gh5 14.Qh5 Qd2+=) 13...Rg8 14.Ne4 (14.b5 ab5 15.Bb5 (15.gh5?! gh5 16.Kh1 Qh3+=) 15...Qd2 16.Qb3+–) 14...Be7+= 15.b5 Nb8 (15...ab5!? 16.Ng3 Qd2+=) 16.ba6+/– ba6 (better is 16...Na6!? 17.Rb1 f5+–) 17.Rc1 f5 18.Nc5 (18.gh5 fe4 19.Be5 Bd6 20.Bd6 Qd6+/–; 18.Be5 fe4 19.Rc7 Qc7 20.Bc7 Kc7 21.Qc2 Kd7 22.Qa4 Nc6+–) 18...Qd2 19.Be5 (better is 19.Na6 Rd6 A) 20.gh5 gh5 (worse is 20...Qb2 21.Rc7 Kd8 22.Qc1 Qe2 23.Rc8 Kd7 24.Nb8 Ke6 25.Rg8 Ng8 26.hg6 hg6 27.Qc8 Kf7 28.Nd7+=) 21.Kh1 Qb2 22.Rc7 Kd8+=; B) 20.Be5 Qd1 21.Rfd1 Rd1 22.Rd1 fg4 23.hg4 Nc6+–; C) 20.Nc7 Qb2 21.Nb5 Rc6 22.Na7 (22.gh5?! Qc1 23.Qc1 gh5 24.Kh1 Rc1 25.Rc1 Kd8+/–) 22...Kc7 23.Nc6 (23.gh5?! Qc1 24.Qc1 gh5 25.Kh1 Rc1 26.Rc1 Kb7+/–) 23...Nc6 24.Qd5+–) 19...Qa5? (19...Qd1 20.Rfd1 (worse is 20.Rcd1 Bc5 21.Rd8 Rd8-/+; 20.Bd1?! Rd5 21.Ne6 Kd7+–) 20...Rd1 21.Bd1+–) 20.Qc2?? (20.Bc7 Kc7 21.Na6 Kb7 22.Qb3 Ka7 23.Rc7 Qc7 24.Nc7 Na6 25.Ba6 Rb8+–) 20...Bd6? (20...Rd2 21.Qc4 Bc5+–) 21.Bd6 Rd6 22.Rfd1 Rc6 23.Bf3 fg4 24.Bc6 gh3 25.Bb7 1–0. Fournier,Frederic – BSPA, Active, 2009.

    6.Be2 e4 7.Nd4 Nd4 8.Bd4 Nh6 9.c4 Nf5 10.Bb2 d4 11.Bh5 g6 12.Bg4 h5 (12...d3!?=) 13.Bf5+= Bf5 14.ed4 (14.Bd4 Bg7+=) 14...Qd7 15.0-0 0-0-0 16.f3 ef3 17.Qf3 (worse is 17.Rf3 Bg4-/+) 17...Bg7 18.Nc3?? White plans d5 (18.d5+=) 18...c6?? (better is 18...Qd4 19.Qf2 Qc4-/+ (19...Qd2?! 20.Nd5 Qf2 21.Rf2=)) 19.Na4 (19.d5 Rhe8+/–) 19...Kb8 20.Nc5 Qc7 21.Rae1 Rde8 (21...Rhe8 22.d5+/–) 22.d5 cd5 23.Qd5 (23.cd5 Re1 24.Re1 Qd6+/–) 23...Rd8 (23...Re1 24.Re1 Rd8 25.Qf3+/–) 24.Qb7 Qb7 25.Nb7 Kb7 26.Re7 Rd7 27.Rfe1 (27.Rg7 Rg7 28.Bf6 Rgg8 29.Bh8 Rh8=) 27...Kc8 (27...Rg8=) 28.c5 (28.Rg7 Rg7 29.Bf6 Rhg8 30.Bg7 Rg7 31.Re8 Kb7=) 28...Bh6 (28...Rd2!? 29.Bc3 Rc2 30.Rg7 Rc3+=) 29.Bf6 Rf8 30.Re8 Kb7 (better is 30...Re8 31.Re8 Kb7=) 31.c6?? (better is 31.Rf8 Bf8 32.d4=) 31...Kc6-/+ 32.Rc1 (32.Rf8!? Bf8 33.d4 Bd6–+) 32...Kb5–+ 33.Re5 (better is 33.Rf8 Bf8 34.d4–+) 33...Ka4?? (better is 33...Kb6 34.Be7 Bd2–+) 34.Ra5 (34.Rc3 Be3 35.de3 Rd5 36.Rd5 Rf6 37.Ra5) 34...Kb3–+ 35.Rc3 Kb2 (35...Kb2 36.Ra6 Rd2 37.Rf3 Ka2–+) 0–1. GuestHJJT – GuestLWLX, freechess.org, 2017.

    5.Nf3 Bg4

    6.Be2 Bd6 7.0-0 e4 8.Nd4+= Be2 9.Qe2 Nh6 10.Qh5+/– Nf7 11.Ne6+– Qd7 12.Ng7 Kf8 13.Bf6 Nc6? 14.Nf5 Rg8 15.Nd6 Qd6 16.Bb2 Ke7 17.Nc3 Rg5 18.Qh4 Kd7 19.f4 Rg7? 20.Ne4! Qg6 21.Nc5 Kc8 22.Bg7 Qg7 23.Qh3 Kb8 24.Qd7 b6 25.Ne6 (25.Ne6 Nd6 26.Qg7+–) 1–0. tonjan (1645) – Rob, internet, 2007.

    6.Be2 h5 7.h3+= Bf5 (7...Be6 8.d4 e4 9.Nfd2+=) 8.0-0 (8.d4 e4 9.Nh4 Be6+/–) 8...Bd6 9.c4 (9.Nh4 Be6+/–) 9...e4? (better is 9...dc4 10.Bc4 b5 11.Bg8 Rg8+=) 10.Nh4+– Nh6 11.Nf5 Nf5 12.Bh5 Ke7 (12...Kf8 13.cd5 c6 14.Bg6+–) 13.cd5 Nd7? (13...Qg8 14.Nc3 Qh7 15.Be2+/–) 14.Bg6 (better is 14.Qg4 Be5 15.Be5 Ne5 16.Qf5 Qd5+–) 14...Ne5 (14...Nh4 15.Be4 f5+–) 15.Bf5 Rh6 (15...a5 16.Be4 ab4 17.Qc2+–) 16.f4 (better is 16.Be4 a5+–) 16...g6 (16...ef3 17.gf3 Nc4+–) 17.fe5 gf5 18.ed6 cd6 (18...Qd6 19.Rf5 Rg8 20.Qc2+–) 19.Rf5 Rh3 (19...Qg8+–) 20.Bf6 (20.Bf6 Kd7 21.Bd8 Rd8 22.Qg4+–) 1–0. Fournier,Frederic (2035) – mingolo (1870), Echecs21, 2003.

    4.e3 Na6

    5.c4 c6 6.cd5+= cd5 7.Nf3 (better is 7.d4 e4 8.Bb5 Kf7 9.Ba6 ba6 10.Nc3=) 7...b5? (better is 7...Nc7=) 8.Bb5+– Bd7?? (better is 8...Kf7+–) 9.Ba6 Qb6 10.Be2 Rc8 (10...Bd6 11.Nc3 Ne7 12.0-0+–) 11.Nc3 Qa6 (11...Qb7+–) 12.Ba6 (12.Ba6 Rc6 13.Bb5+–) 1–0. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

    5.d4 A) 5...e4+= 6.Ba6 (6.c4 c6 7.cd5 cd5 8.Bb5 Kf7 9.Ba6 ba6+=) 6...ba6 7.c4 dc4 8.Nc3 f5 9.Qh5 g6+=; B) 5...ed4 6.Bd4 Nb8 (6...c6 7.Bd3 Nh6 8.Nf3 Nc7 9.0-0 Bd6+=; 6...Bd6 7.c4 dc4 8.Bc4 Nb8 9.Bg8 Rg8+=; 6...Be6 7.Ba6 ba6 8.Qh5 Bf7 9.Qe2 Bd6+/–; 6...Nh6 7.Ba6 ba6 8.Qh5 g6 9.Qe2 Kf7+=) 7.Bd3 Nh6 8.Nf3 Nc6 9.0-0 Bd6+=.

    5.Nf3 Nb8 A) 6.Bb5 Nd7 (6...Bd7 7.Bd7 Qd7 8.Nc3 Nc6 9.d3 0-0-0=; 6...c6 7.Be2 a5 8.b5 e4 9.Ng1 Bd6=; 6...Kf7 7.0-0 a5 8.ba5 Ra5 9.Be2 Nc6=) 7.Nc3 c6 8.Be2 Bd6 9.e4 d4=; B) 6.Be2 Be6 (6...Bd6 7.c4 dc4 8.Bc4 a5 9.b5 Bg4+=; 6...a5 7.b5 Bd6 8.d4 e4 9.Nfd2 f5+=; 6...Bf5 7.0-0 a5 8.b5 Qd6 9.d4 e4+=; 6...Bg4 7.d4 e4 8.Nfd2 Be2 9.Qe2 c6+=) 7.0-0 Bd6 8.d4 e4 9.Nfd2 f5=; C) 6.Nc3 a5 (6...Bf5 7.Be2 a5 8.b5 Nh6 9.0-0 Be6=; 6...Be6 7.Be2 Be7 8.0-0 Nh6 9.d4 e4=; 6...Nc6 7.Bb5 a5 8.ba5 Ra5 9.0-0 Nge7=; 6...Ne7 7.Be2 Bf5 8.0-0 Nd7 9.Nh4 Be6+=) 7.b5 Be6 8.Be2 Bd6 9.0-0 Ne7=; D) 6.d4 e4 7.Nfd2 f5 8.c4 Nf6 9.Nc3 Be6=; E) 6.c4 Ne7 (6...a5 7.b5 Be6 8.cd5 Bd5 9.Nc3 Bf7+=) 7.d4 e4 8.Nfd2 f5 9.Qh5 g6+=.

    5.Nf3 Qd6 6.Nh4 (6.Nc3 Ne7 7.Bb5 c6 8.Ba6 ba6 9.Rb1 Rb8=; 6.c4 c5 (6...Ne7 7.Nc3 Nb8 8.Rc1 c6 9.cd5 Nd5+/–) 7.bc5 Nc5 8.d4 ed4 9.Nd4 dc4+=) 6...b5?? (better is 6...Ne7 7.d4 e4+= 8.c4 g5 9.Nc3 gh4-/+) 7.Bb5 (7.Qh5 Kd8 8.Ng6 hg6 9.Qh8 Be6+–) 7...Ke7? (better is 7...Kd8!?+–) 8.Qh5 g6 (8...Bd7 9.Bd7 Kd7+–) 9.Ng6! (9.Ng6 hg6 10.Qh8+–) 1–0. Wall,Bill – MerlinC, internet, 2000.

    5.f4 A) 5...e4 A1) 6.Ba6 ba6 7.Nc3 Ne7 8.d3 ed3 9.cd3 a5=; A2) 6.Nc3 Ne7 (6...c6 7.Ba6 ba6 8.Nge2 a5 9.Nd4 ab4=; 6...Be6 7.Ba6 ba6 8.Qh5 Bf7 9.Qe2 Qd6+=; 6...Bf5 7.Ba6 ba6 8.Qh5 g6 9.Qe2 Qd6+=) 7.Ba6 ba6 8.d3 ed3 9.cd3 a5=; A3) 6.c4 c5 (6...Be6 7.cd5 Bd5 8.Nc3 c6 9.Qc2 Nc7+=; 6...Bf5 7.cd5 Qd5 8.g4 Bd7 9.Nc3 Qd6+/–) 7.cd5 cb4 8.Bb5 Kf7 9.Ba6 ba6+=; A4) 6.d3 ed3 (6...Bf5 7.de4 de4 8.Nc3 Qd1 9.Rd1 Rb8+=; 6...Nb8 7.de4 de4 8.Qd8 Kd8 9.Nc3 a5+=) 7.Bd3 Nh6 8.Nf3 c5 9.Ba6 ba6+=; B) 5...ef4 6.Ba6 ba6 7.ef4 a5 8.Nc3 Bf5 9.Qh5 g6=.

    4.e3 c5

    5.b5 b6 6.d4 Nd7 7.c4 Bb7 8.Nf3 (8.de5 dc4 9.ef6 Ngf6 A) 10.Bc4?? Bg2 11.Nh3 Bh1-+ (11...Bh3?! 12.Rg1 Bf5 13.Nd2-+); B) 10.Nf3+/-) 8...Qc7 (8...ed4 9.ed4 Qe7 10.Be2 dc4 11.0-0 cd4 12.Nd4+=) 9.Qb3 (better 9.de5!? Ne5 10.Ne5 fe5 11.Qh5 Qf7 12.Qe5 Ne7 13.Nc3+-) 9...Qd6 (9...cd4 10.ed4 ed4 11.Bd4=) 10.Nc3 (10.de5 Ne5 11.Ne5 fe5 12.cd5 Bd5 13.Bc4 Bc4 14.Qc4+=) 10...Ne7 (10...cd4 11.ed4 dc4 12.Bc4 ed4 13.Bf7 (worse 13.Bg8 Bf3 14.gf3 dc3 15.Bc3 0-0-0=+) 13...Kd8 14.Rd1+= (worse 14.Bg8 Bf3 15.gf3 dc3 16.Bc3 Rc8-/+)) 11.cd5 (11.de5 Ne5 12.Ne5 d4+/-) 11...Nd5?? (11...ed4!? 12.ed4 Nd5 (worse 12...Bd5 13.Nd5 Qd5 14.Bc4 Qe4 15.Kf1+/-) 13.Nd5 Bd5=) 12.Bc4 (better 12.de5 Ne5 13.Rd1+-) 12...Ne7? (12...Nc3 13.de5 (worse 13.Bc3 ed4 14.Bf7 Kd8=+; worse 13.Qc3 cd4 14.ed4 ed4 15.Qd4 Qd4 16.Bd4 Rc8=) 13...Ne5 14.Ne5 Qe5 15.Bf7 Kd7 16.Bc3=) 13.Rd1?? (better 13.Bf7 Kd8 14.de5+-) 13...Bf3 14.dc5?? (14.gf3 cd4 15.ed4 ed4 16.Ne4+-) 14...Bd1-/+ 15.Bf7 (15.cd6?? Bb3 16.Bb3 Nf5-+) 15...Kd8 16.cd6 Bb3 17.de7 Be7 18.Bb3 Rc8 19.Kd2 Nc5 20.Bd5 Bd6 21.Ke2 Ke7 22.Rd1 Rhd8 23.e4 Ne6 24.f3 Nd4 25.Kd3 Rd7 26.f4 Ne6 27.f5 Nc5 28.Ke3 Rdc7 (28...Rdd8 29.h3-/+) 29.Kd2 Na4?? (better 29...Rd8-/+) 30.Na4+/- Rc2 31.Kd3 Rg2 32.Rd2 Rg5 33.Nc3 g6 (33...Rd8 34.Kc4+/-) 34.Be6+- gf5?? (34...Rd8 35.Nd5 Kf8 36.Kc2+-) 35.Bf5 (better 35.Bc8 f4 36.Kc4+-) 35...h5?? (35...Rd8 36.Nd5 Kf7 37.Bh7 Rh5+-) 36.Bc8 1-0. moss42 (2230) - blackcrowman (2120), ChessWorld.net, 2013.

    5.b5 Qb6 6.Nc3 Bd7?? 7.Nd5+/– Qd6 8.Bc4 Be6 9.e4 Ne7 10.Nf6?? gf6-/+ 11.Qe2 Nd7 12.a4 0-0-0 13.0-0-0 Nb6 14.Be6 Qe6 15.a5 Nc4 16.d3 Na5 17.Nf3 a6 18.c4? ab5 19.Qc2 bc4 20.Qc3 Nec6 21.dc4 Bh6 22.Kb1 Nc4 23.Rc1 Bc1 24.Rc1 Nb2 (24...Nb2 25.Qb2 Rhg8–+) 0–1. lapinagile – bgage (2330), net–chess.com, 2008.

    5.b5 Bf5 6.Be2 (6.d4 ed4 7.ed4 c4 8.Nc3 Ne7 9.Nge2=; 6.c4 Ne7 7.cd5 Nd5 8.Nc3 Be6 9.Nf3=; 6.Nf3 e4 7.Ng1 Nd7 8.Nc3 Ne5 9.f4+=; 6.Nc3 d4 7.Nb1 Ne7 8.Nf3 Qa5 9.ed4+=) 6...Bd6 7.c4 Be6 8.Bf3 e4 9.Bh5 =.

    5.c3 cb4 6.ab4 Nd7 7.Bb5 Ne7 8.Nf3 Nc6 9.Bc6 bc6 10.0-0 Bd6 11.d3 Bb7 12.Qc2 a5 13.ba5 Ra5 14.Ra5 Qa5 15.Nbd2 0-0 16.Ra1 Qc7 17.e4 Nc5 18.d4 ed4 19.cd4= Ne4 20.Ne4 de4 21.Nd2 c5 22.dc5 Qc6?? 23.Re1 e3 (23...e3 24.Ne4 Qe4 25.Qe4 ef2 (< 25...Be4 26.cd6 Rd8 27.Ba3+=) 26.Kf2 Bc5 27.Qd4 Bd4 28.Bd4 Kf7-/+) 0–1. minn (2000) – supertimchan (2075), net–chess.com, 2003.

    5.c3 b6 6.Nf3 Bb7 7.Be2 Nd7 8.0-0 Bd6 9.Bb5 Ne7 10.Qa4 a6 11.Bd7 Qd7 12.Qd7 Kd7 13.d3 b5 14.Nbd2 c4 15.dc4 dc4 16.a4 Ke6 17.Rfd1 Rhd8 18.Ne1 f5 19.Nf1 g5 20.ab5 ab5 21.Ra8 Ra8 22.f3 Ra2 23.Ba1 h5 24.Ng3 h4 25.Nh1 Nd5 26.e4 fe4 27.fe4 Ne3 28.Rc1 Be4 29.Nf2 Bc6 30.h3 Kf5 31.Nd1 Ng2 32.Ng2 Rg2 33.Kf1 Rg3 34.Nf2 Bg2 35.Kg1 Bh3 36.Kh2 Bg4 37.Rf1 e4 38.Nh1 Kg6 39.Ng3 Bg3 40.Kg1 h3 41.Bb2 h2 42.Kg2 Bc7 43.Bc1 Bf3 44.Kf2 h1Q 45.Rh1 Bh1 46.Be3 1–0. horacyad2010 – januszmlyn, internet, 2011.

    5.c3 Nc6 6.d3 d4 7.cd4 ed4 8.Nd2 de3 9.fe3 cb4 10.ab4 Bb4 11.Ngf3 Bg4 12.Be2 Bf3 13.gf3 Ne5 14.d4 Nc6 15.0-0 Qe7 16.e4 0-0-0 17.d5 Ne5 18.Qa4 Bc5 19.Kh1 Nh6 20.Rfc1 Kb8 21.Ba3 Ba3 22.Ra3 b6 23.Nc4 Rc8 24.Rac3 Nhf7 25.f4 Nc4-/+ 26.Rc4 Rc4 27.Rc4 Nd6 28.Rc6? Qe4–+ 29.Qe4 Ne4 30.Bf3 Nd2 31.Bg2 Rd8 32.d6 f5 33.Rc7 Ne4 34.Rg7 Rd6 35.Rh7?? a5 36.Re7?? b5 37.Be4-/+ fe4 38.Re4 b4 39.Re5 Ra6 40.f5 Kc7 41.h4 b3 42.Kg2 b2 43.Rb5 Rb6 44.Rb2 Rb2 (44...Rb2 45.Kf3 a4–+) 0–1. horacyad2010 – tatrus81 (1670), internet, 2011.

    5.c3 Bd6 6.Be2 Ne7=+ 7.Bh5 g6 8.Be2 Be6 9.Bb5 Nbc6 10.d3 0-0 11.Nd2 Rc8 12.Ne2 f5 13.0-0 a6 14.Ba4 b5 15.Bb3 c4 16.dc4 dc4 17.Ba2 a5 18.f4? Qb6 19.Rf3?? ef4?? 20.Nf4?? Bf4–+ 21.Rf4 Qe3 22.Rf2 Ne5 23.Qe2 Qe2 24.Re2=+ N7c6 25.ba5 Kf7 26.Bb1 Rfd8 27.Bc2 Nd3 28.Bd3 cd3–+ 29.Re3 Na5 30.Rae1 Rc6 31.Re5 Nc4 32.Nc4 Bc4 33.Re7 Kg8 34.Rd1 d2 35.Re3 Bb3 (35...Bb3 36.c4 Bd1–+) 0–1. mic (2245) – escape (2320), net–chess.com, 2006.

    5.c3 Be6 6.d4 ed4 7.ed4 c4 8.a4 Bd6 9.Ne2 Ne7 10.h3 Nd7 11.Na3 a6 12.Bc1 Qc7 13.b5 (13.g3!?+=) 13...0-0 14.g3 Bf5 (14...Qa5 15.Bg2-/+) 15.Bg2 Be4 16.0-0 f5 17.Bf4 Ng6 18.Bd6 Qd6 19.Nc2 Bg2 20.Kg2 f4 21.Kh2 Nf6 22.f3 (22.ba6!? Ra6 23.Nb4-/+) 22...fg3–+ 23.Ng3 Nh5 24.Rg1 Nh4 25.Ne1? (25.f4 Ng3 26.Rg3 ab5 27.Ne3 Qf4 28.Qg4 Qg4 29.Rg4 Ra4 30.Ra4 Nf3 31.Kg3 ba4 32.Nd5–+) 25…Rae8 0–1. Sapareva,Magdalena (1675) – Anev,A (2070), ch–BUL Seniors, 2011.

    5.bc5 Nc6 6.c4 Bc5 (better 6...d4!? 7.Nf3 Nh6=+) 7.cd5+/- Qd5 8.Nc3 Qd6 9.Nf3 Bf5 10.Bb5 Nge7 11.0-0 0-0 12.h3 Rad8 13.Qe2 Bd3 14.Bd3 Qd3 15.Qd3 Rd3 16.Ne4 Bb6 17.Rac1 Rb3 18.Rc2 f5 19.Nd6 e4 20.Ne5 Rb2! 21.Rb2 Ne5 22.Nb7 Nd3 23.Rb3 Nd5 24.Nd6 Nc5 25.Rb5 Nc7 26.Rbb1 Ba5 (better 26...N7e6-/+) 27.Nc4+= Bb6 28.Nb6 ab6 29.Rb6 Ra8 30.Rc1 N7e6 31.Rc6 Ra5 32.g4 g6 (32...Ra3?? 33.gf5 (33.R1c5?! Nc5 34.Rc5 fg4+=) 33...Kf7 34.h4+- (34.Re6?! Ne6 35.fe6 Ke6+/-; worse 34.fe6 Ne6 35.R1c4 Ng5+-)) 33.Kg2 Kf7 34.Kg3 Ke7 35.gf5 gf5 36.Rc3 Kd7 37.Rb6 Ra8 38.h4 Rg8 39.Kh3 h5 40.Rb5 Kd6 41.Ra5 (better 41.Rb6!? Kd5 42.Rb5=) 41...f4-/+ 42.ef4 Nf4 43.Kh2 Ncd3 44.Ra6 Ke5 45.Ra5 Kf6 46.Rg5 Rg5 47.hg5 Kg5 48.a4 Nf2?? (better 48...Nd5 49.Rc4 Kf4= (49...Nf2? 50.Rc5 Ng4 51.Kh3+-)) 49.a5+- Ng4 50.Kh1 Nf2?? (50...Nd5 51.a6 Nc3+-) 51.Kg1 N2h3 (51...e3 52.Re3 Ng4 53.Re7+-) 52.Kf1 Ne6 (52...Nd5 53.Rh3 Kg4+-) 53.a6 Nhf4 54.a7 Nd3 (54...Nd5 55.a8Q Nc3 56.dc3+-) 55.Rd3! Nf4 (55...ed3 56.a8Q Combination) 56.Rg3 Kh4 (56...Kf6 57.a8Q Ke5 58.Qb8 Kf5 59.Qf8 Ke5 60.Rg5 Ke6 61.Qh6 Ng6 62.Qg6 Kd7 63.Rh5 Kd8 64.Rh7 e3 65.Qg8) 57.Rg8 (57.Rg8 e3 58.a8Q e2 59.Ke1 Nd3 60.Ke2 Nf4 61.Kd1 Ng2 62.Rg2 Kh3 63.Qe4 h4 64.Qf3) 1-0. cipiripi (2415) - mecker (2415), Rated Blitz game, lichess.org, 2016.

    5.bc5 d4 6.Nf3 Bc5 (6...de3 7.fe3 Bc5 8.d4+=) 7.Bc4 (7.ed4 ed4 8.Qe2 Kf8+=) 7...Qb6 8.Bb3 Nc6 9.0-0 (9.ed4 Nd4 10.Bd4 Bd4 11.Nd4 Qd4=) 9...Nge7 (9...Bg4 10.Qe2=+) 10.ed4 Nd4 11.Nd4 Bd4 12.Bd4 Qd4 13.Nc3 Bd7 14.a4 0-0-0 (14...Bg4 15.Qe1=) 15.Nb5+= Qc5 16.d4 (16.Rb1 Kb8=) 16...ed4 17.Qd4 (17.Nd4 Nf5 18.c3 Rhe8+= (18...Qc3?? 19.Rc1 Nd4 20.Rc3 Bc6 21.Rc4 Nb3 22.Qb3+-)) 17...Qd4 18.Nd4 Nc6 19.Nb5 Bf5 20.Rad1 Kb8 21.Nd6 Bg6 22.Rfe1 a6 23.Bf7? (better 23.Re2!?=) 23...Rd6! 24.Rd6 Bf7 25.Rd7 Rf8 26.h3 (26.Rb1!? Na5 27.Re1-/+) 26...Kc8-+ 27.Rd6 Kc7 28.Rd3 Bc4 29.Rc3 (better 29.Rg3 g5 30.h4-+) 29...Bf7 (29...b5 30.Kh2-+) 30.Re7?? (30.Rd3 Bg6 31.Rd2-+) 30...Kb8 31.Rd7 g5 32.a5 (32.Kf1 h5-+) 32...h5 (32...Na5 33.Re3-+) 33.g3 (better 33.Rc5-+) 33...Be6 34.Rd6 (34.Rh7 Bh3 35.Ra3 Bf5 36.Rh5 Bc2-+) 34...Bh3 35.Rf3 f5 (35...Na5 36.Rff6 Rf6 37.Rf6-+) 36.Kh2 (36.Ra3 Rh8-+) 36...Bg4 37.Rc3 f4 (better 37...Re8 38.Rg6 Re2-+) 38.Rb3 (38.Rd5-+) 38...f3 (better 38...fg3 39.Kg3 Na5-+) 39.Rc6+= Rd8 (39...Re8 40.Ra6 Re2 41.Rab6+=) 40.Rcb6 (40.Rh6 Rd2 41.Rh8 Ka7=) 40...Rd7 (40...Rd2 41.Rb7 Kc8 42.Rb8 Kc7 43.R3b7 Kc6 44.Rb6 Kc5 45.Ra6 Rf2 46.Kh1 Rc2 47.Rf6=) 41.c4 (41.Rg6 Rd2 42.Rg8 Ka7+=) 41...Kc8 42.c5 (42.Rb2 Re7+=) 42...Rc7 (42...Rd2!? 43.Rb2 Re2=) 43.c6 (43.Rc3 Rd7+/-) 43...bc6 (43...Rc6 44.Rc6 bc6+/-) 44.Rc6?? (44.Ra6 Kd7+/-) 44...Kd7 (better 44...Rc6 45.Rd3 Rc2-+) 45.Rc7+- Kc7 46.Rb6 Kc8? (better 46...Bc8+/-) 47.Ra6+- Kd7 48.Rg6 Kc7 49.Rg5 Kd7 (49...Kb7 50.Kg1 Ka7 51.Kf1+-) 50.Rg6 (better 50.Rc5+-) 50...Ke7 (50...Kc7 51.Rb6 Bf5+-) 51.a6 Kf7 (51...Kf7 52.Rc6 Bd7+-). cipiripi (2410) - Leon4rdo (2625), Rated Blitz game, lichess.org, 2016.

    5.d4 cb4 6.ab4 (6.de5!? Nc6 7.Nf3=) 6...Bb4=+ 7.c3 Ba5 (7...Bd6 8.c4 ed4 9.Bd4=+) 8.Nd2 (8.Qa4!? Nc6 9.Bb5=) 8...Nc6-/+ 9.Qc2 (9.de5 fe5 (worse 9...Ne5 10.Qa4 Nc6 11.Bb5+=) 10.Bb5 Nf6-/+) 9...g6 (9...Nge7-/+) 10.0-0-0? (10.e4!?-/+) 10...Bf5 (10...Nge7 11.c4 ed4 12.ed4–+) 11.Bd3 e4 12.Bb5 (12.Be2 Nge7–+) 12...a6 13.Ba4? (better 13.Be2–+) 13...b5 14.Bb3 Nh6 (14...Nd4 15.Qb1 Nb3 16.Nb3–+) 15.Ne2 (15.Rf1 Rc8–+) 15...Ng4 (better 15...Rc8!? 16.Nf4 Nb4 17.cb4 Rc2 18.Kc2 Bb4 19.Nd5–+) 16.Rdf1 Rc8 17.h3 Nh6 18.g4 Ng4 (better 18...Nb4!? 19.cb4 Rc2 20.Kc2 Bb4 21.gf5 Nf5-/+ (21...gf5?! 22.Nf4=)) 19.hg4=+ Bg4 20.f3 ef3 21.Nf3 b4 (better 21...Bf5 22.Qd2 Be4=+) 22.c4?? (22.Rh7! Rh7 23.Qg6 Rf7 24.Qg4+–) 22...dc4?? (better 22...Bf5 23.Qd1 dc4–+) 23.Bc4= b3?? (23...Ne7 24.Kd1 Qc7 25.Nd2=+) 24.Qb3 Black creates threats along the open c–file (24.Rh7 bc2 25.Rh8 Kd7 26.Rd8 Rd8 27.Ba6 Nb4 28.Bb5 Kc7+–) 24...Nb4 (better 24...Be6 25.Kb1 Rb8+=) 25.Kb1?? (better 25.Kd1 Bf5 26.Bf7 Kf8 27.Ne1+–) 25...Bf5-/+ 26.Ka1 Nc2 (26...Bc2 27.Bf7 Kf8–+) 27.Ka2=+ Qd7 28.Nf4? (better 28.Ng3 Nb4 29.Ka1-/+) 28...Nb4–+ 29.Ka3 Bc2 30.Bf7 (30.Be6 Qb5 31.Rc1 Bb3 32.Rc8 Ke7 33.Bb3 Rc8 34.Rh7 Kd6 35.Be6 Nc2 36.Ka2–+) 30...Kf8?? (better 30...Qf7 31.Qf7 Kf7–+) 31.Ng6 hg6 (31...Kg7 32.Nge5 Qd6 33.Rfg1 Kf8 34.Qe6 Qe6 35.Be6+–) 32.Rh8 Kg7 33.Rc8 Do you see the mate threat? 33...Bb3 34.Rg8 Kf7 35.Ng5?? (better 35.Ne5 Kg8 36.Nd7+–) 35...Kg8 36.Rf6 (36.Kb3 Qd5 37.Kc3 Qc6 38.Kb3 Qc2 39.Ka3 Qc4 40.Ka4 Nc2 41.Ka5 Qb5) 36…Qa4 0–1. pat_cash87 – Sviblo, lichess.org, 2020.

    5.d4 c4?? 6.de5+/– b5 7.Nc3+– fe5 8.Nb5 a6?! 9.Qh5 Kd7 10.Qe5 ab5 11.Qd5 Bd6 12.Qa8 Na6 13.Bg7 Nb4 14.ab4 Bb4 15.c3 Bc3 16.Ke2 Bg7 17.Ra7 Ke8 18.Qe4 Ne7 19.Nf3 Bf5? 20.Re7! Qe7 21.Qf5 Qb4 22.Qc8 Kf7 23.Ng5 Kg6 24.Qe6 Kg5 25.f4 Kh5 26.g4 Kh4+– 27.g5 Qb2 28.Kf3 h6 29.Qg4 1–0. bentengutama – xodinho, net–chess.com, 2002.

    5.Be2 cb4 6.Bh5 g6 7.Be2 ba3 8.Ba3 Ba3 9.Na3 Ne7 10.Nf3 Nbc6 11.0-0 0-0 12.d3 Be6 13.c3 Rc8 14.Qb1 b6 15.d4 e4 16.Nd2 f5 17.Ba6 Rb8 18.f3 Bc8 19.Bc8 Rc8 20.fe4 fe4 21.Rf8 Qf8 22.Qb3 Qh6 23.Nc2 Na5 24.Qb4 Qg5 25.Rf1 Nc4 26.Nc4=+ Rc4 27.Qa3 Nf5-/+ 28.Qa7 Rc3 29.Qb8 Kg7 30.Qb7?? Kh6 31.Nb4 Ne3 (31...Ne3 32.Qg7 Kg7 33.g3 Nf1 34.Nd3 ed3 35.Kh1 Qd2 36.Kg1 Qh2 37.Kf1 Rc1#; 31...Nh4 32.Qh7 Kh7 33.Rf7 Kh6 34.Rh7 Kh7 35.Kf2 Qe3 36.Kf1 Rc1#) 0–1. mic (2105) – littlepawn (2245), net–chess.com, 2007.

    5.Be5 fe5 6.Qh5 Ke7 7.Qe5 Be6 (7...Kf7 8.bc5 Bc5 9.d4-/+) 8.Nf3 (8.bc5 Nc6 9.Qb2 Rb8+=) 8...Nd7-/+ 9.Qb2 Qb6 10.Nc3 Ngf6 (10...c4!?-/+) 11.Na4+= Qc7 12.bc5 (12.Nc5 Nc5 13.bc5 Kd8+=) 12...Ne4 (12...Bg4 13.Rb1 Bf3 14.gf3+=) 13.Rb1 (13.d4 Rb8 14.Bb5 g5+=) 13...Nec5-/+ 14.Nc3 (14.Nc5 Nc5 15.d4 Nd7-/+) 14...b6 (14...Ne4 15.Ne2-/+) 15.Nb5+= Qb7 16.Be2 Rg8 (16...Kf7 17.Nbd4+=) 17.0-0 g5 18.Nfd4 Bg7 19.c4 (19.Qb4 a5 20.Qb2 Rae8+=) 19...Raf8 (19...Rad8 20.cd5 Bd5 21.Nf5 Kf8 22.Ng7 Rg7 23.f3+=) 20.Qc2 a6 (20...dc4 21.Ne6 Ne6 22.Bc4=) 21.Ne6 Ne6 (worse is 21...Ke6 22.cd5 Ke7 23.d4 ab5 24.dc5 Nc5 25.Rfd1+/– (worse is 25.Qh7 Qd5 26.Rb5 Qe5+=)) 22.cd5 Qd5 (worse is 22...ab5 23.de6 Nc5 24.Rb5 Ne6 25.d4+/–) 23.Na7 b5 24.d4 (24.Nc6 Kd6 25.Nb4 Qb7=) 24...Nb8+= 25.a4 (25.Bg4 h5 26.Be6 Ke6+=) 25...Qb7 26.Nb5 ab5 27.Rb5 Qc6 (27...Qa7 28.Qe4 Nd7+–) 28.Qb1 (28.Qc6 Nc6 29.d5 Ncd4 30.ed4 Nd4 31.Rb7 Kd6=) 28...Qd6 (28...Rd8 29.Rd1 Qc3=) 29.Rb6+– Nc6 30.Rb7 (30.Bb5 Rc8 31.Rc1 h6+–) 30...Nc7 (better is 30...Kf6!? 31.Bg4 Qd5+/–) 31.Rc1+– Rf6 32.Bb5 Rb8? (32...Rh6 33.Qe4 Kf8+–) 33.Rc6 (33.Bc6?! Rb7 34.Qb7 Rh6+–) 33...Rb7 34.Rd6 Nb5 35.Rf6 (35.ab5?! Kd6 36.e4 Ke7+/–) 35...Nd6 36.Qb7! Nb7 37.Rb6 Na5 38.Rb5 Nc6 39.d5 Ne5 (39...Nd4 40.Rb7 Kd8 41.Rg7 Ne2 42.Kf1+–) 40.a5 1–0. Cirulis,Ilmars (1675) – Carnemolla,Giampaolo (1780), FICGS, 2015.

    5.g3 Nc6 6.Bg2 (6.b5!? Na5 7.Nc3=+) 6...cb4=+ 7.ab4 Bb4 8.Ne2 Nge7 9.0-0 0-0 10.d3 Be6 11.Nd2 a5 12.c4 a4! 13.cd5 (13.Ra4 Ra4 Combination) 13...Nd5 14.Rc1 (14.Ba3 b5-+) 14...a3 15.Ba1 Na5 (15...a2 16.Bb2-+) 16.Ne4 Qe7 17.d4 f5 18.Nc5 e4 19.Ne6 Qe6 20.g4 g6 (better 20...fg4!? 21.Ng3 Rf3 22.Qa4-+) 21.Ng3 b5 (better 21...f4 22.Ne4 fe3 23.fe3 Ne3-+) 22.f3? (better 22.gf5 gf5 23.Bh3-/+) 22...Ne3 23.d5 Qd5 (23...Nd5?! 24.gf5 Qd6 25.fg6 hg6 26.Ne4 Qb6 27.Bd4-+) 24.Qd5 Nd5 25.fe4 fe4 26.Be4 Rf1 (better 26...Rad8 27.Rf8 Kf8-+) 27.Rf1= Rd8 (better 27...Bc5 28.Kh1 Nc7 29.Ba8 Na8=+) 28.Bb1?? (better 28.Rd1 Nb3 29.Rd5=) 28...Bc5-+ 29.Kh1 b4 30.Ne4 (30.Rd1 Be7 31.Be4 Ne3 32.Rd8 Bd8-+) 30...Be7 31.Rd1 (31.Kg1 b3-+) 31...b3 32.Be5 (32.Kg1 b2 33.Bb2 ab2-+) 32...a2 33.Bd3 (33.Ba1-+) 33...Nb4 34.Be2 Rd1 35.Bd1 Nc2 (35...Nd3 36.Bb3 Nb3 37.Bc3-+) 36.Nd2 a1Q 37.Ba1 Na1 38.Nb3 (38.Kg2 b2 39.Nb1 Nc4-+) 38...N1b3 39.Bf3 Nd4 40.Kg2 Kg7 41.Bd1 (41.Bd5 Kf6-+) 41...Nc4 42.h3 (42.Ba4 Bh4 43.g5 Ne3 44.Kg1 Ne2 45.Kh1 Bg5-+) 42...Ne3 43.Kg3 Nd1 44.h4 Nc3 (44...Bd6 45.Kg2-+) 45.g5 Kf7 46.Kg4 Ke6 47.h5 Ke5 48.h6 Bc5 (48...Ne4 49.Kh3 Kf4 50.Kg2 Bc5 51.Kh1 Kg3 52.Kg1 Ne2 53.Kf1 N2c3 54.Ke1 Bf2 55.Kf1 Nd2) 49.Kh4 (49.Kg3 Nf5 50.Kf3 Bd4 51.Kg2 Kf4 52.Kf1 Ne3 53.Kf2 Kg4 54.Kg1 Kf3 55.Kh1 Ne2 56.Kh2 Ng4 57.Kh3 Nf4 58.Kh4 Bf2) 49...Ne4 (49...Kf4 50.Kh3 Kf3 51.Kh2 Nce2 52.Kh3 Bd6 53.Kh4 Nf5 54.Kh3 Ng1) 50.Kh3 (50.Kg4 Be7 51.Kh3 Kf4 52.Kg2 Bc5 53.Kh3 Kf3 54.Kh2 Nf2 55.Kg1 Ne2 56.Kf1 Ng3 57.Ke1 Bb4) 50...Kf4 51.Kh4 (51.Kg2 Kg4 52.Kf1 Kf3 53.Ke1 Nc2 54.Kd1 Ne3 55.Kc1 Ba3 56.Kb1 Nc3 57.Ka1 Nc2) 51...Nf5 (51...Bd6 52.Kh3 Kf3 53.Kh4 Ng5 54.Kg5 Be7) 52.Kh3 Kg5 53.Kg2 Kh6 54.Kf3 Ng5 55.Kf4 (55.Ke2 Nd6 56.Kd2 Ne6 57.Kd1 Kg5 58.Kc2 h5 59.Kc3 h4 60.Kd2 h3 61.Kc1 h2 62.Kb1 h1Q 63.Kc2 Nd4 64.Kb2 Qg2 65.Kb1 Nc4 66.Ka1 Qb2) 55...Bd6 56.Kg4 Ne6 (56...Ne3 57.Kh4 Nf3 58.Kh3 Ng1 59.Kh4 g5) 57.Kf3-+ Kg5 58.Ke4 (58.Kf2 h5 59.Kg2 h4 60.Kf1 Nf4 61.Ke1 h3 62.Kd1 h2 63.Kc2 h1Q 64.Kb2 Qd1 65.Ka2 Qc2 66.Ka1 Be5) 58...h5 59.Kd5 (59.Kd3 h4 60.Ke2 Ng3 61.Kf2 h3 62.Ke3 Bc5 63.Kf3 Nf5 64.Ke2 h2 65.Kd1 h1Q 66.Kc2 Ned4 67.Kb2 Qh2 68.Kb1 Qc2 69.Ka1 Nb3) 59...h4 (59...Ned4 60.Kc4 h4 61.Kc3 h3 62.Kd2 h2 63.Kc3 h1Q 64.Kb2 Qg2 65.Ka1 Ba3 66.Kb1 Qb2) 60.Kc6 (60.Ke6 h3 61.Kd5 h2 62.Kc4 h1Q 63.Kb5 Qe4 64.Kb6 Nd4 65.Ka6 Bc5 66.Ka5 Qa8) 60...h3 61.Kd7 (61.Kd5 h2 62.Kc4 h1Q 63.Kc3 Qb1 64.Kd2 Ned4 65.Kc3 Qc2) 61...h2 62.Ke8 (62.Ke6 h1Q 63.Kd7 Qe4 64.Kc8 Qc6 65.Kd8 Be7) 62...h1Q (62...Kf6 63.Kd7 h1Q 64.Kc8 Qc6) 63.Kf7 Qh7 (63...Nd8 64.Ke8 Qc6 65.Kd8 Be7) 64.Ke8 (64.Ke6 Qg8 65.Kd7 Qc4 66.Kd8 Qf7 67.Kc8 Qc7) 64…Qe7 0-1. ZeruHmyz (2290) - mecker (2270), Rated Blitz game, lichess.org, 2015.

    5.b5 a6

    6.Nc3 Bf5 7.e4 (7.ba6 Na6 8.Bd3 e4 9.Bb5 Kf7=) 7...de4= 8.Nge2 (8.ba6 ba6 9.Bc4 Nc6=) 8...Bg6 (8...Be6 9.Ne4 ab5 10.h4=) 9.h4 ab5 10.Nb5 (better is 10.Ng3!?+=) 10...Nc6+= 11.Ng3 h5 (11...Nh6 12.a4+=) 12.Be2 Qb6 (12...f5 13.Bh5 (13.Nh5? f4–+) 13...Bh5 14.Nh5-/+) 13.c4 (13.Rb1!?=) 13...Nd4+= 14.Bd4 cd4 15.Bh5 Bh5 16.Nh5 g6 17.Ng3 e3 18.fe3 de3 19.d3 (better is 19.de3 Qe3 20.Ne2+=) 19...Ba3?? (better is 19...f5 20.h5 0-0-0-/+) 20.Kf1+/– (20.Ra3?! Ra3 21.Na3 Qb4 22.Ke2 Qa3=) 20...e2? (20...Nh6!? 21.Ra3 Ra3 22.Na3 f5+/–) 21.Ne2 (21.Qe2 Ne7 22.Ra3 Ra3 23.Na3 0-0+–) 21...Nh6 22.Ng3 (worse is 22.Na3 Ng4 23.Qe1 Ne3 24.Kf2 Ra3-/+) 22...Qc5? (22...f5 23.Ra3 Ra3 24.Na3 Ng4+=) 23.Ne4 (23.Ra3?! Ra3 24.Ne4 Qb4 25.Na3 Qa3 26.Nf6 Kf7+=) 23...Qe7 (23...Qb4 24.Nc7 (24.Ra3?! Ra3 25.Na3 Qa3+=; 24.Na3?! Ra3 25.Rb1 Qa4+/–; 24.Nf6?! Kd8 25.Rh3 Nf5+–) 24...Kf7 25.h5+–) 24.Qb3 (24.Ra3?! Ra3 25.Na3 Qa3 26.Nf6 Kf7+=; 24.Na3?! Ra3 25.Ra3 Qa3 26.Nf6 Kf7+=) 24...0-0 25.Ra3 f5 (25...Ra3 26.Na3 Kg7 27.Nb5+–) 26.c5 (26.Ned6 Ra3 27.Na3 Kg7+– (27...Qd6?? 28.c5 Nf7 29.cd6+–)) 26...Kg7 (26...Qf7 27.Nd2+–) 27.Ned6 f4 (27...Ng4 28.Ra8 Ra8 29.Ke2+–) 28.Rh3 (28.Ra8!? Ra8 29.Kf2 Ng4 30.Ke2 Ne3+–) 28...Ng4 29.h5 (better is 29.Kg1+–) 29...gh5 (29...Ne3 30.Kg1 Qg5 31.h6 Kh7+–) 30.Ra8 Ra8 (30...Ne3 31.Re3! fe3 32.Ke2 Qf6 33.Rf8 Kf8+–) 31.Nf5 (31.Nf5 Kf6 32.Ne7 Ne3 33.Ke2+–) 1–0. Matveenko,Yury – Artemov,Nikita, Voronezh Region CC Championship Semifin, 2008.

    6.c4 ab5 7.cb5 Be6 8.a4 (8.d4 ed4 9.ed4 c4=+) 8...d4 (8...Bd6 9.d4 ed4 10.ed4-/+) 9.Nf3 (9.Qc2 Bd6=+) 9...e4-/+ 10.Ng1 f5 11.g3 (11.Nh3 d3=+) 11...Nf6-/+ 12.Nh3 Be7 13.Nf4 Bf7 14.Bg2 0-0 (14...g5 15.Ne2 Bh5 16.ed4-/+) 15.0-0 g5 16.Ne2 d3 17.Nec3 g4 18.Na3 (18.h3 gh3 19.Bh3 Be6=+) 18...Nbd7 (18...Bd6 19.Qc1-/+) 19.Qc1 (19.h3 Qa5-/+) 19...b6 (19...Bd6 20.Nab1-/+) 20.Nd1 (20.Qd1!?-/+) 20...Nd5 (20...Ra4 21.Nc3 Ra5 22.h3-+) 21.Nc4 Bf6 (21...Nb4 22.Na3-+) 22.Nd6 Ne5 (22...Be6 23.Bf6 N7f6 24.Nc4-+) 23.Nf7 (better 23.Nf5 Nf3 24.Bf3 gf3 25.Nh6 Kg7 26.Ng4=) 23...Rf7-/+ 24.Nc3 Nb4 25.Qd1 (25.h3 gh3 26.Bh3 Nf3 27.Kh1 Qd6-+) 25...Qf8 (25...Nc4!? 26.Rb1-+) 26.Ne4-/+ fe4 27.Be4? (27.Be5 Be5 28.Qg4 Kh8-/+) 27...Rd8?? (27...Nf3 28.Bf3 gf3 29.Bf6 Rf6 30.Qb3 Qf7 31.Rfb1-+) 28.Bc3? (28.Be5 Be5 29.Qg4 Kh8=+) 28...Nc2 (28...Nf3 29.Bf3 gf3 30.Bf6 Rf6 31.Qb3 Rd5-+) 29.Rc1? (29.Be5 Be5 30.Qg4 Kh8 31.Ra2=+) 29...Bg7?? (better 29...Nf3 30.Bf3 gf3-+) 30.Be5= Be5 31.Qg4 Rg7?? (31...Kh8 32.Bd3 Rd3 33.Rc2=) 32.Qh4?? (better 32.Qe6 Kh8 33.Qe5+-) 32...c4 (32...Bb2 33.Bd3 Bc1 34.Rc1-/+) 33.f4 (33.Bc6 Na3=+) 33...Bf6-/+ 34.Qh3 Ne3?? (better 34...Qe7 35.Qf5 Kh8-/+) 35.de3+/- d2 36.Rcd1 Qe7 37.Qg2 (37.Qf5 c3 38.Rf3 Qf7+/-) 37...Kh8 (better 37...c3+=) 38.Rd2?? (better 38.Qf3+/-) 38...c3?? (better 38...Rd2 39.Qd2 Qe4=+) 39.Rc2 1-0. azer3136 (2210) - Antonny (2275), Rated Blitz game, lichess.org, 2016.

    5.b5 c4

    6.d4 e4 7.Nc3 Qa5?? 8.Qh5+– g6 9.Qd5 Bd7 10.Bc4 Qc7 11.Qf7 Kd8 12.Qf8 Be8 13.Bg8 Qe7 14.Qe7 Ke7 15.Nd5 Kd6 16.Nf6 Ke7 17.Nd5 Kf8 18.Be6 Nd7 19.Nc7 Rd8 20.d5 Rc8 21.Ne8 Ke8 22.Bh8 Rc2 23.Bd7 Kd7 24.Nh3 Rc5 25.Rd1 Rb5 26.f4 Ra5 27.d6 Ra3 28.Ng5 Re3 29.Kf2 Rd3 30.Ne4 Ra3 31.Rhe1 Ra2 32.Kg3 Ra3 33.Kh4 Ra5 34.Nf6 Kd8 35.Rc1 h6 36.d7 g5+– 37.Kg4 Ra4 38.Re8 1–0. bentengutama – capelinhos, net–chess.com, 2002.

    6.d4 e4 7.Nc3 Ne7 8.Nge2 Bg4 9.h3 Bh5 10.g4 Bg6 11.Nf4 Nd7 (11...Bf7!?=) 12.Ncd5 Nd5 13.Nd5 Bf7 (better is 13...Rc8+=) 14.Bc4?? (14.Nc3 Qe7+/–) 14...a6?? (14...Nb8 15.Nf6 Qf6 16.Bf7 Qf7 17.f3 ef3 18.0-0=) 15.a4?? (better is 15.Bb3+/–) 15...Bd5?? (better is 15...Nb8 16.ba6 ba6 17.Nf6 Qf6 18.Bf7 Qf7+= (worse is 18...Kf7 19.f3=)) 16.Bd5+– Nb6 (16...ab5 17.ab5 (worse is 17.Bb7 Ra4 18.Be4 Qa5 19.c3 Kd8+–; 17.Be4?! ba4 18.Qd3 a3+–) 17...Ra5 18.Qb1+–) 17.Be4 (better is 17.Bb7!? Rc8 18.c3 Nc4+–) 17...Nc4 18.Bc3 a5 (18...Qc7+–) 19.Bb7 Bb4 (19...Ra7 20.Bc6 Kf7 21.e4+–) 20.Bb4 ab4 21.Bc6 Ke7 22.Ba8 Qa8 23.0-0 Kd6 24.Qd3 Qd5 (24...Rc8 25.Qh7 Nd2 26.Rfd1 Nf3 27.Kf1 Nh2 28.Ke1+–) 25.e4 Qe6 26.d5 (better is 26.Rfb1!? Rc8 27.Rb4 Na5+–) 26...Qc8 27.f4 (27.Rfb1!? Ne5 28.Qb3 h5+–) 27...Qc5 28.Kh2 h5 (28...Ra8 29.Kh1+–) 29.g5 f5 (29...Re8 30.c3 b3 31.Rab1+–) 30.e5 Kc7 31.d6 Kb6 32.Rf3 (32.c3 b3+–) 32...g6 (32...Ne5 33.fe5 Qe5 34.Kg2 f4+–) 33.d7 Kc7 34.Rd1 Rd8 35.e6 (better is 35.Qd4 Qd4 36.Rd4+–) 35...Nd6 (35...Ne5 36.fe5 Qe5 37.Kg2 Qe6+–) 36.e7 Rd7 37.e8Q! b3 (37...Ne8 38.Qe3 Double attack (38.Qd7 Pinning; 38.Qd7 Deflection; 38.Qe3 Decoy)) 38.Qd7! Kd7 39.Qd6! Qd6 40.Rd6 Kd6 41.Rb3 Kd5 42.b6 Ke4 (42...h4 43.b7 Kc5 44.b8Q Kd5 45.Rd3 Kc6 46.c4 Kc5 47.Qb5) 43.Rb4 (43.b7 Kd5 44.Rd3 Kc5 45.b8Q Kc6 46.Qc8 Kb6 47.Rb3 Ka5 48.Qa8) 43...Kf3 44.b7 h4 (44...Ke3 45.b8Q Kd2 46.Rd4 Kc1 47.Qb4 h4 48.c4 Kc2 49.Rd2 Kc1 50.Qb2) 45.b8Q Ke2 46.Rb3 (46.Qd6 Ke1 47.Rb1 Kf2 48.Qd4 Kf3 49.Rf1 Ke2 50.Qd3) 46...Kd2 47.Qb4 1–0. Rush,Bradley – Huseby,Juan Carlos, 65. LSS No Engine Cup Preliminary, 2012.

    6.d4 e4 7.Ne2 f5 8.c3 Nf6 9.Ng3 Bd6 10.Nd2 f4 11.ef4 Bf4 12.Nc4 dc4 13.Bc4 Qe7 14.0-0 Be6 15.Be6 Qe6 16.Re1 Bg3–+ 17.fg3 0-0 18.Qe2 Nbd7 19.a4 Nb6 20.Ba3 Rfe8 21.Rac1 Nc4 22.Bb4 a5 23.Bc5 b6 24.d5 Nd5 25.Bf2 e3 26.Be3 Qe3 27.Qe3 Re3 28.Re3 Nde3 29.h3 Rd8 30.Kh2 Rd2 31.g4 Rg2 32.Kh1 Nd2 33.Re1 Nf3 34.Re3 Rh2 0–1. slavisa99 – laksman5, Live Game Caissa's Web, 2004.

    6.e4 a6 7.ba6 Ra6 8.Nc3 d4 9.Nd5 =.

    5.b5 d4

    6.Bc4 Qd6 7.Qf3 Ne7 8.Ne2 g6 (8...Nd7 9.d3+=) 9.Ng3 (9.d3 a6 10.Nd2 Qb6 11.ba6 Ra6+– (11...Qb2?? 12.Rb1 Qb1 13.Nb1+–)) 9...f5+= 10.ed4 (10.d3 a6 11.ba6 Na6+=) 10...cd4 11.0-0 e4 (11...Nd7 12.d3+=) 12.Qb3+– Nd7 (12...Bg7 13.Qb4 Qb4 14.ab4+–) 13.Bf7 Kd8 14.Qa2 (better 14.d3!? ed3 15.cd3+–) 14...Bg7 15.a4 (15.d3 ed3 16.cd3 Nc5+=) 15...b6 (15...Nc5!? 16.Ne2 f4=+) 16.Na3 Ne5 (16...Nc5 17.Ne2+=) 17.Bb3 Bb7 18.Nc4 Nc4 19.Bc4 Rc8 20.d3 Bd5 21.Bd5 (21.Rad1!? Bc4 22.dc4+–) 21...Qd5= 22.Qb1 Qc5? (22...ed3 23.cd3 Ke8 24.Re1=) 23.Rd1 (23.de4 Qc2 24.Qa2+–) 23...Qd5? (23...e3 24.fe3 Nd5 25.e4=) 24.Re1 (24.Ne2 e3 25.fe3 Qe6+–) 24...Qc5 (24...ed3 25.cd3 Re8 26.Qd1+=) 25.Re2 (25.de4!? Re8 26.Qc1+–) 25...Nd5+– 26.de4 Nc3 27.Bc3 Qc3 28.Ra2 (28.ef5? d3 29.Re1 Qa1 30.Qa1 Ba1 31.Ra1 dc2–+) 28...d3 (better 28...f4 29.Nf1 Re8+=) 29.Rd2?? (29.cd3 Qc1 30.Re1 Qb1 31.Rb1 fe4 32.Ne4 Rc7+–) 29...Kc7 (better 29...Qd2 30.c4 Qc3–+) 30.Rd3+– Qa1?? (30...Qa5+–) 31.Qa1 (better 31.Ra1 Rhd8 32.Raa3+–) 31...Ba1 32.ef5 (32.Ra1 fe4 33.Ne4 Rhf8+–) 32...gf5?? (32...Be5 33.fg6 hg6 34.h3+–) 33.Re3 (33.Ra1 Rhf8+–) 33...Rhg8 (33...f4 34.Re7 Kb8+–) 34.Re7 (better 34.Ra1 f4 35.Re7 Kb8+–) 34…Kb8 1–0. Souza,Kim Garcia De (1745) – Carneiro,P Irajara Borba, Brazil Telecom Sesc Open, 2017.

    6.Bd3 Ne7=.

    6.Be2 a6= 7.Nf3 Bd7 (7...e4 8.Nh4 f5 9.g3+=) 8.a4 (better is 8.ed4 cd4 9.c3 ab5 10.cd4+=) 8...Bg4?? (better is 8...ab5 9.ab5 Ra1 10.Ba1 e4=) 9.0-0 Bf3 10.Bf3 ab5 11.ab5 (better is 11.Bb7!? Ra4 12.Na3+–) 11...Ra1+/– 12.Ba1 Qa5 13.Bb2 Qb5 14.Qc1 f5 (14...Qd7 15.c3 Nc6 16.Na3+/–) 15.ed4 cd4 16.Re1 Nc6 17.Bc6 Qc6 18.Re5 Kf7 19.Bd4 f4? (19...Nf6!? 20.d3 Qd7+/–) 20.Rf5 (20.Qb2!? Nf6 21.Qb3 Kg6 22.Qd3 Kf7+–) 20...Nf6 21.Bf6 Ke6? (better is 21...gf6 22.Rf4 Bh6+–) 22.Bg7! Bg7 23.Rf4 Be5 24.Rh4 (24.Qe1 Rg8 25.g3 Kd6+–) 24...Rg8 (24...Bf6 25.Rh6+–) 25.Rh6 (25.g3 Rg7+–) 25...Bf6 26.g3 Kf7 27.Rh7 Kf8 (27...Kg6 28.Rh3 Qc8+–) 28.Qa3 Ke8 29.Qe3 (better is 29.Qa8 Bd8+–) 29...Kd8 30.Qd3 Kc8 31.Na3 Re8 32.f3 Re1 (32...Kb8 33.Nb5+–) 33.Kf2 Qe6 (33...Re8 34.Nc4 Rd8 35.Qf5 Kb8 36.Qf4 Ka7 37.Qe4+–) 34.Qc4 (34.Nb5 Rb1 35.Kg2 Rb4+–) 34...Qc4 35.Nc4 Re6 36.h4 (36.c3!? Rc6 37.Ne3 Rd6+–) 36...Bd4 37.Kf1 Rc6 38.d3 Rf6 39.f4 Rg6 (39...b5 40.Nd2+–) 40.Kg2 (better is 40.Ke2 b5 41.h5 Ra6+–) 40...Kb8 (40...b5 41.Nd2+–) 41.Kf3 Ka7 (41...Rc6 42.h5+–) 42.h5 (42.h5 Rc6 43.h6+–) 1–0. Neumann,Frank (1650) – Korn,Lothar (1700), remoteschach.de, 2008.

    5.b5 Bd6

    6.c4 d4 7.Bd3 Ne7 8.Qc2 f5 9.e4+=.

    6.c4 d4 7.Bd3 f5=.

    6.c4 d4 7.Be2 Ne7 8.Bh5 g6 9.Bg4 0-0 10.Ne2?? (better is 10.Bc8 Qc8 11.d3+=) 10...Bg4–+ (10...Bg4 11.Qb3 Rf7–+) 0–1. GuestMXLJ – GuestQTSB, freechess.org, 2017.

    6.c4 d4 7.e4 f5 (7...Ne7 8.Qh5 g6 9.Qh4+=) 8.ef5 (8.Qh5 g6 9.Qe2 fe4 10.Qe4 Nf6-/+) 8...Bf5 (8...Nf6 9.Be2+=) 9.d3 (9.Qf3 Qd7 10.Bd3–+) 9...Nf6-/+ 10.f3 (10.Nf3 0-0-/+) 10...0-0 11.Nd2 (11.Ne2 Qa5 12.Nd2 Bd3 13.Nd4 ed4 14.Bd3 Bf4+=) 11...Nbd7 (11...Qa5 12.Qc2-/+) 12.Qc2 (12.Ne2 Bd3 13.Nd4 ed4 14.Bd3 Qc7-/+) 12...a6 13.ba6 Ra6 14.g3 (14.Ne2 Qa5-/+) 14...Bc7 (14...Be7 15.Bh3 Bg6 16.Ne2-/+) 15.Bh3 Bh3 16.Nh3 Ba5 17.0-0 Bd2 18.Qd2 Qe8 19.Bc1 Qh5 20.Kg2 h6 (20...Qg6 21.Rb1 Nb6 22.Rb5+=) 21.Rb1 b6 (21...Rb6 22.Rb6 Nb6 23.Qb2+=) 22.Qe2 (22.Nf2 Ra4+=) 22...Raa8 (22...Qg6 23.Nf2+=) 23.Nf2+= Rf7 (23...Rae8 24.Re1=) 24.Ra1 (24.Re1 Raf8+=) 24...Raf8+= 25.Bd2 g5 (25...Rb8 26.Rab1+=) 26.a4 (26.g4 Qg6+=) 26...Qg6 (26...Ra8 27.Ne4=) 27.h3 (27.a5 ba5 28.Ba5 Re8=) 27...h5 Black prepares the advance g4 28.Ne4 (28.Kh2 h4+=) 28...Ne4+= 29.fe4 g4 30.Rf7 (30.h4 Rf3+=) 30...Rf7 (30...gh3 31.Kh3 Rf7 32.Rf1=) 31.hg4= Qg4 32.Qg4 hg4 33.Rf1 Rf1 34.Kf1 Kf7 35.Ke2 Ke6 (35...Nf6 36.Bg5=) 36.Kd1 (36.Bg5 Nf6=) 36...Kd6 (36...Nb8 37.Ke2=) 37.Kc2 (37.Bg5 Nf8=) 37...Kc6 (37...Nf6 38.Bg5 Ke6 39.Kd2=) 38.Kb3 (38.Bg5 Kc7=) 38...Nf6 39.Bg5 Nh5 40.Bh4 Kb7 41.Kc2 Ka6 (41...Kc7=) 42.Kd2 (42.Kb2 Ka5 43.Kb3 Ka6=) 42...Kb7 (better is 42...Ka5!?-/+) 43.Ke2 Kc6 44.Kf2 Kd7 45.Bg5 Ke8 46.Ke1 (46.Kg2 Kd7=) 46...Kd7 (46...Ng3 47.Bf6 Nh5 48.Be5=) 47.Bh4 Kc6 48.Kd2 (48.Ke2 Kd6=) 48...Kb7 (48...Kd6 49.Ke2=) 49.Bd8 (49.Kd1 Kc7=) 49...Kc6 (49...Ng3 50.Bf6 Kc6+=) 50.Ke1 (50.Bh4!?=) 50...Ng3-/+ Black gets the initiative 51.Bf6 Kd6 52.Bd8 Nh5 53.Bb6 Nf4 54.Kf2 Nd3 55.Kg3 Nb2 56.Kg4 (56.Ba7 Nc4 57.Kg4 Ne3 58.Kf3 c4–+) 56...d3 (56...d3 57.Ba5 Nc4–+) 0–1. Nebylitsin,Nikolai (2225) – Grif,Sergei, Novosibirsk op, 2001.

    6.c4 Ne7 7.cd5 Nd5 8.Qh5 g6 9.Qf3 Be7 10.Bc4 Nb6 11.Ba2 (11.d3 Nc4 12.dc4 a6=) 11...Qd3 (11...a6 12.Nc3 ab5 13.Nb5-/+) 12.Nc3 N8d7 (12...c4 13.Bb1 Qd6 14.a4=) 13.Nge2 Nc4 (13...f5 14.Be6=) 14.Bc4 Qc4 15.0-0 (15.Nd5 Bd8 16.Nec3 a6=) 15...Nb6 (15...Qd3 16.Nc1 Qd2 17.Nd5=) 16.Rfc1 (better is 16.d4=) 16...Bg4-/+ 17.Qb7 Be2 18.Qc6 (better is 18.e4!? Bd8 19.a4=+) 18...Kf7–+ 19.Ne4? (better is 19.a4 Rhc8 20.Qb7–+) 19...Qb5 20.Nd6 (20.Qb5 Bb5 21.Nc5–+) 20...Bd6 21.Qd6 Rad8 (22.Qc5 Qb2–+; 21...Rhd8 22.Qc5 Qb2 23.Rcb1 Qd2 24.h3–+) 0–1. Aubertin,Tim – Berger,Peter (1840), 1.Saarlouis op, 1998.

    6.Bd3 Be6 7.c4 dc4 8.Be4 (8.Qh5 Kf8 9.Be4 Qd7+=) 8...Qd7-/+ 9.a4 f5 10.Bf3 Nf6 11.Bh5 g6 (11...Nh5 12.Qh5 Bf7 13.Qg5–+) 12.Be2 0-0 (12...Bd5 13.Nf3 Qe6 14.Qc2-/+) 13.Qc2 Nd5 14.Bc4 (14.Nf3!?+=) 14...Nb4-/+ 15.Qb3 Bc4 16.Qc4 Qf7 17.Qf7 Rf7 18.Ba3?? (better is 18.Ke2-/+) 18...Nc2–+ 19.Ke2 Na1 20.Nf3 Nb3 21.Nc3 (21.d3 Nd7–+) 21...b6 (better is 21...e4!? 22.Ng5 Rd7 23.Nge4 fe4 24.Ne4–+) 22.Ng5 Rd7 23.Rb1 (23.Nd5 Be7 24.Ne7 Re7–+) 23...c4 24.Bb2 Bb4 (24...Be7 25.Nf3 e4 26.Nd4 Nd4 27.ed4–+) 25.Bc1 (25.Rd1 a6 26.Nf3 ab5 27.Ne5 ba4 28.Nc4 Bc3 29.Bc3 Ra6–+) 25...a6 26.Nf3 Bc3 27.dc3 Rd5 (27...ab5 28.ab5 Ra2 29.Ke1–+) 28.a5 (28.e4 fe4 29.Nd2 Nc1 30.Rc1 ab5 31.Ne4 Kg7 32.ab5 Ra2 33.Ke1 Rb5–+) 28...ab5 29.ab6 Nd7 30.b7 Rb8 31.Rb2 Nc1 (31...Nc1 32.Kf1 Rd1 33.Ne1 Rb7–+) 0–1. Pachurka,Roland – Jarchow,Andreas (1765), Schleswig Holstein–ch B, 2007.

    6.d4 ed4 7.ed4 c4 8.Nc3 Be6 9.Qh5 =.

    6.Be2 Ne7 7.Nf3 Bd7 8.0-0 0-0 9.c4 a6 10.cd5 Nd5?? (10...e4 11.Ne1 Qc7 12.f4 ab5 13.Nc3=) 11.a4?? (better is 11.Bc4 Be6 12.Qb3+/–) 11...ab5 12.ab5 Ra1 13.Ba1 1–0. Neumann,Frank (1650) – Schawacht,Max (1845), RSS7E schnell–38, 2008.

    5.b5 Be6

    6.a4 Nd7 7.d3 Qc7 8.c4 d4 9.e4 a6 10.Nd2 g6 11.Nb3 Nh6 12.h3 f5 13.ef5 gf5 14.Nf3 Be7 15.g3 Bf6 16.Bg2 ab5 17.ab5 Ra1 18.Qa1 Nb6 19.Nfd2 0-0 20.Qc1 Na4 21.Ba3 Nf7 22.h4 Nd6 23.Bh3 (23.Qc2 Ra8+=) 23...Re8-/+ 24.0-0 0–1. Wiszniowski,Eugeniusz (1780) – Galicki,Ryszard (2025), 17OBSen–Rowy Poland, 2008.

    6.Nc3 Bd6 7.g3 (7.e4 Ne7=+) 7...d4 (7...Ne7 8.Qh5 Bf7 9.Qg4-/+) 8.Ne4 Be7 9.Bg2 (9.f4 Nd7=+) 9...Qd7 (9...f5 10.Bh3-/+) 10.ed4 (10.Qh5 Bf7 11.Qe2 f5 12.ed4 fe4 13.Qe4 a6 (13...Qb5? 14.Qb7 Qb7 15.Bb7+–) 14.dc5 ab5 15.Be5 Ra4+–) 10...cd4 (< 10...ed4 11.Nc5 Bc5 12.Qh5 Kd8 13.Qc5+/–) 11.Qe2 a6 12.ba6 Na6 (12...ba6? 13.Nf6 Nf6 14.Ba8+–; 12...Ra6?! 13.Nf3=+) 13.Nf3 Rc8 14.d3 (14.Rc1 Nc5=+) 14...Bg4 (14...Nc5 15.Nc5 Bc5 16.0-0=+) 15.c4 dc3 16.Nc3 Nc5 17.Rd1 Nb3 18.h3 (better is 18.Ne4!?=+) 18...Nd4–+ 19.Qe4 f5 (better is 19...Ba3 20.Ba3 Bf3 (20...Rc3?! 21.hg4 Nf3 22.Bf3 Ra3 23.d4=) 21.Bf3 Rc3-/+) 20.Qd5?? (20.Ne5 fe4 21.Nd7 Bd1 22.Nd1 Nc2 23.Kd2 Bg5 24.Ke2 Kd7 25.Bg7=) 20...Qd5–+ 21.Nd5 Nf3 22.Kf1 Bh5 (22...Nh2 23.Rh2 Bd1 24.Ne7 Ne7 25.Be5–+) 23.g4 fg4 24.hg4 Bg4 25.Ne3 Nh2 26.Rh2 Bd1 27.Nd1 Nf6 (27...Rd8 28.Be5 Bf6 29.Bf6 Nf6 30.Ke2–+) 28.Bb7 Rc7 (28...Rc2 29.Be5 Ba3 30.Kg2–+) 29.Ba6 (29.Be4 Ne4 30.de4 Bd6–+) 29...Rc2 30.Bb5 (30.Be5 Ba3 31.Kg2 Rd2–+) 30...Kf7 (30...Kf8 31.Ba4 Rd2 32.Be5 Rd3 33.Ne3–+) 31.a4 (31.Bc4 Ke8 32.Be5 Ba3 33.Ne3 Rc1 34.Ke2-/+) 31...Rd2-/+ 32.Bc4 Kf8 33.Ke1 Bb4 34.Bb5 (34.Ba3 Rd1! 35.Kd1 Ba3 36.a5–+) 34...Rd3 (34...Rb2 35.Kf1 Rd2 36.Ne3–+) 35.Ke2 (35.Bc3 Bc3 36.Nc3 Rc3–+) 35...Rd2 36.Ke1 Rc2 (37.Kf1 Rd2=; better is 36...Rb2 37.Kf1 Rd2–+) 0–1. Frenzel,Lothar – Jacewicz,Grzegorz, corr 3GMM–28, 1996.

    6.d3 Bd6 7.a4 Ne7 8.Nf3 0-0 9.Nbd2 Nd7 10.Be2 Rc8 11.c4 d4 12.0-0 Bb8 13.a5 de3 14.fe3 Nf5 15.Qc1 (better 15.Kf2!?=) 15...Ne3-/+ 16.Re1 Nf5 17.Ne4 Re8 18.Bf1 (18.a6 b6-/+) 18...Nf8 (18...Nd4 19.Qd1-/+) 19.g3 Ng6 20.Bg2 (20.a6 b6-/+) 20...Qd7 (20...Qd3 21.Nfd2-+) 21.Ba3 (21.Qc3 Red8 22.Ra3 Nd6-/+) 21...b6 (21...Qd3 22.Nc5 Qc4 23.Qc4 Bc4 24.b6-/+) 22.ab6 ab6 23.Qc2 Bc7 24.Bb2 Ra8 25.Ra6 Red8 (25...Rad8 26.Ra3-/+) 26.Rea1 (26.g4 Nfe7 27.Ra8 Ra8=+) 26...Rab8 (26...Ne3 27.Qe2 Ra6 28.ba6 Ng2 29.Kg2 Bh3 30.Kg1-/+) 27.Ra7 (27.Qe2 Qd3 28.Qd3 Rd3 29.Nc5 bc5 30.Re6 Ne3-/+) 27...Ne3-/+ 28.Qe2 Ng2 29.Kg2 Bg4 30.Nf2 Bf5 31.h4 Rbc8 32.R7a3 Nf8 33.h5 Ne6 (33...Qf7 34.h6-/+) 34.Nh4=+ Nd4 35.Bd4 ed4 36.Nf5 Qf5 37.Qg4 Qg4 38.Ng4 Re8 39.R1a2 (39.Rf1 Kf7-/+) 39...Re7 40.h6 Rce8 (40...f5 41.Ra8 Rce8 42.Re8 Re8 43.Nf2-/+) 41.hg7 (41.Rf2 Re6-/+) 41...Kg7-/+ 42.Nf2 f5 43.Ra7 Kf6 44.Ra1 (44.g4 Rg7 45.Kf1 fg4 46.Ng4 Kg6-/+) 44...h5 (better 44...Rg8!? 45.Nh1 Bg3 46.Ng3-+) 45.Rh1 Kg6 46.Rb7 (46.Rh4 Rg7 47.Rh3 Re3-+) 46...Bd8 (46...Ra8!? 47.Rf1-+) 47.Re7 Re7 48.Ra1 Re3 49.Ra8 Bf6 (49...Bc7 50.Rg8 Kf7 51.Rg5-+) 50.Rb8 (50.Ra6 Re6-/+) 50...Re6 (50...Rg3 51.Kh2 Be5 52.Rb6 Kf7 53.Rb7 Ke6 54.Rb6 Kd7 55.Kh1-+) 51.Rb7 (51.Nh3 Be5 52.Nf4 Bf4 53.gf4 Kf7=) 51...Be5 (better 51...Bg5!?-/+) 52.Nh3= Kh6 53.Kf3 Kg6 54.Nf4 Bf4 55.Kf4 Rf6 56.Rb8 Rf7?? (better 56...Kg7=) 57.Rb7 (better 57.Rb6 Kh7 58.Rc6+-) 57…Rb7-+ (57...Rb7 58.Ke5 Re7 59.Kd6 Re3-+) 0-1. Cofi7 (2260) - pacalmisu (2270), Rated Blitz game, lichess.org, 2015.

    6.d4 cd4 7.ed4 Nd7 8.Be2 (8.de5 fe5 9.Nf3 Bd6=) 8...Bd6+= 9.de5 fe5 10.Bg4 (10.c4 d4+=) 10...Bg4-/+ 11.Qg4 Ngf6 12.Qh4 (12.Qf5!?-/+) 12...0-0 (12...Qa5 13.Bc3 Qb5 14.Qh3–+) 13.Ne2 (13.Qh3 Qb6 14.Qd3 Rac8–+) 13...Rc8 (13...Qa5 14.Bc3 Qb5 15.Bb4 Bb4 16.Qb4–+) 14.c3 (14.Nbc3 Qa5 15.0-0 d4–+) 14...Qb6 15.a4 Rc4 16.Qg5 (16.f4 Nc5 17.Qh3 e4–+) 16...Ng4 (16...Ne4 17.Qe3 Bc5 18.Qh3–+) 17.0-0 (17.Nd4 Nf2 18.0-0 Ne4 19.Rf8 Nf8–+) 17...Rf2 (17...Rf2 18.Nd4 ed4 19.Rf2 dc3 20.Nc3 Qf2 21.Kh1 Rf4 22.Qg7 Kg7 23.Nd1 Qb2 24.Nb2 Be5–+; worse is 17...Nf2 18.Nd4 ed4 19.a5 Nh3 20.gh3 Rf1 21.Kf1 Qb5 22.Ba3 dc3 23.Kg2 Ba3 24.Ra3 Qb2 25.Kf3–+) 0–1. nordlicht (1970) – blake507 (1930), gameknot.com, 2013.

    5.b5 Ne7

    6.c4 a6 7.cd5 Nd5 8.d4 cd4 9.ed4= Nc7 10.de5+= Qd1 11.Kd1 Be7 12.ef6 Bf6 13.Bf6 gf6 14.Nc3 ab5 15.Nb5 Nba6 16.Nf3 Nb5 17.Bb5 Kf7 18.Bc4 Kg7 19.Re1 Rd8 20.Kc1 Nc5 21.Ra2 Nd3 22.Bd3 Rd3 23.Re3 Re3 24.fe3 Be6 25.Rb2 Bd5= 26.Rb5 Bc6 27.Rb3+= Kg6 28.Kb2 Rd8 29.Rc3 Bf3 30.gf3 ½–½. Loulou – ama49, playchess.de, 2003.

    6.d4 ed4 7.ed4 c4 8.Nf3 Qb6 9.Nc3 =.

    6.Be2 a6 7.d4 ed4 8.ed4 c4 9.ba6 +=.

    6.Nf3 a6 7.Nc3 d4 8.Ne4 Qd5 9.Ng3 =.

    6.f4 ef4 7.Qh5 g6 8.Qh4 fe3 9.Bf6 +=.

    6.Qh5 g6 7.Qf3 Nf5 8.c4 d4 9.h4 +=.

    5.b5 Nh6

    6.Nc3 Bg4 7.Be2 Be2 8.Nge2 d4 9.Ne4 f5 10.N4g3 a6 11.ba6 Na6 12.0-0 Qb6 13.Rb1+= de3 14.Be5+– Qe6 15.Bc3 ef2 16.Rf2 0-0-0 17.Qf1 Re8 18.Rf3 Qa2 19.Rb2+– Qc4 20.Rb6 Rg8 21.Rf4 Qa2? 22.Qf3 Re7 23.Nf5 Nf5 24.Rf5 Qc2 25.Rf8 Rf8 26.Qf8 Kc7 27.Rb7! Kb7 28.Qe7 Nc7 29.Be5 Qb1 30.Kf2 Qb6 31.Qg7 c4 32.Nd4 Qc5 33.Kg1 Kc8 34.Bf6 h5 1–0. GnuChessMac 4.0 – Zzzzzz, 2000.

    6.d4 cd4 7.ed4 e4 8.c4 Nf5 9.cd5 Qd5 10.Nc3 Qd4 11.Qh5+/– g6 12.Qh3 e3 13.fe3= Qe3 14.Qe3 Ne3 15.Kd2 Nf1 16.Rf1 Nd7 17.Nd5 Bh6 18.Kc2 0-0 19.Nf3 b6 20.Nc7 Rb8=+ 21.Nd4 Bb7-/+ 22.Re1 Rfc8 23.Nde6 Nc5 24.Kb1 Bg2 25.Rhg1 Nd3 26.Bf6 Ne1 27.Re1 Bh3 28.Be5 Kf7 29.Bd6 Bf5 (29...Bf5 30.Kb2 Be6 31.Re6 Bg5–+; 29...Rb7!? 30.Be5–+) 0–1. BeautyandBrain – SkullCrusher, Live Game Caissa's Web, 2005.

    6.h3 Nf7 7.a4 (7.d4 cd4 8.ed4 Bd6+=) 7...Be7 8.d3 0-0 9.Be2 a6 10.Nd2 a5 11.c4 Be6 12.e4 de4 13.de4 b6 (13...Nd6 14.Ngf3=) 14.Ngf3 Ra7 15.0-0 Rd7 16.Qc2 Rd6 17.Rad1 Qd7 18.Bc1 Nh8 (18...Qc7 19.Nb1+=) 19.Nb3 Rd8 20.Kh2 Ng6 21.Rd6 Qd6 22.Rd1 Qc7 23.g4 (23.Rd8 Qd8 24.Qd3 Qd3 25.Bd3 Nd7=) 23...Nd7 24.Be3 Ndf8 25.Qc1 Qc8 26.Rg1 Rd6 27.Nbd2 (27.Rd1 Nd7+=) 27...Qd7 28.Rg2 Bf7 29.Qd1 Ne6 30.Ne1 Nef4 (30...Ngf4 31.Rg3-/+) 31.Rg3 Ne2 32.Qe2 Nf4 (32...Nf8 33.g5-/+) 33.Qd1 (better is 33.Bf4!? ef4 34.Rd3+=) 33...Bc4!-/+ 34.Qc2 (34.Nc4 Rd1 Pinning (34...Rd1 Deflection)) 34...Be6 35.Ndf3 (35.Nc4 Bc4 36.Qc4 Qe6-/+) 35...Nd3 (35...h5!? 36.g5 Nh3 37.gf6 Bf6 38.Ng2–+) 36.Nd3 Rd3 37.Nd2 Rd6 (37...Bd8 38.Nc4-/+) 38.Rg1 g6 39.f3 (39.Rc1 Qc7-/+) 39...Kf7 40.Re1 Bf8 41.Kg3 Kg8 42.Kf2 (42.Nc4 Bc4 43.Qc4 Kh8-/+) 42...h6 43.Ke2 Kh7 44.Nc4 Bc4 45.Qc4 h5 (45...Qd8 46.h4-/+) 46.Rh1 (46.gh5 gh5 47.Rg1 Qe6 48.Qe6 Re6+=) 46...Bh6 (46...h4 47.g5-/+) 47.gh5 gh5 48.Rg1 Qe6 49.Qe6 Re6 50.Bf2 (50.Rd1 Be3 51.Ke3 h4+=) 50...Rd6-/+ 51.Rd1 Rd1 52.Kd1 Kg6 53.h4 f5 54.Kc2 Kf6 55.Kd3 fe4 (better is 55...Ke6!?-/+) 56.Ke4= Ke6 57.Bg3 Attacks the isolani on e5 57...Bg7 58.f4 ef4 59.Bf4 Kd7 60.Kd5 (60.Kf5!?+=) 60...Bf6-/+ 61.Bg3 Bd8 62.Be1 c4 (better is 62...Bc7-/+) 63.Kc4+= Ke6 64.Kd4 Kf5 (better is 64...Be7=) 65.Ke3?? (better is 65.Kd5+/–) 65...Kg4–+ 66.Kf2?? (better is 66.Bc3 Bh4 67.Bd4–+) 66...Bh4 67.Kf1 Be1 68.Ke1 (68.Kg2 h4–+) 68...h4 69.Kf2 Kf4 70.Kg2 Ke4 71.Kh3 Kd4 72.Kh4 Kc4 73.Kg3 Kb4 74.Kf2 Ka4 75.Ke2 Kb5 76.Kd2 Kb4 77.Kc2 a4 78.Kb2 a3 79.Ka2 b5 80.Ka1 Kb3 (80...Kc4 81.Ka2 b4 82.Kb1 b3 83.Ka1 Kc3 84.Kb1 Kd4 85.Ka1 a2 86.Kb2 Ke4 87.Ka1 Kd3 88.Kb2 a1Q 89.Ka1 Kc3 90.Kb1 b2 91.Ka2 Kc2 92.Ka3 b1Q 93.Ka4 Qb6 94.Ka3 Qb3) 81.Kb1 b4 82.Ka1 Kc2 83.Ka2 b3 0–1. Abend,Volker – Koehler Kaess,Jan, GER Seniors Derby 2nd, 2003.

    5.Bb5 Nc6

    6.bc5 Bc5 7.d4 Qa5 8.Nc3=.

    6.bc5 Bc5 7.d4 ed4 8.ed4 Bd6=.

    6.bc5 Bc5 7.Nf3 Bd7 (7...a6 8.Be2+=) 8.0-0 Nge7 (8...Qb6 9.Nc3 Nge7 10.d4 ed4 11.Nd4 Bd4 12.ed4=) 9.d4 Bd6 (9...ed4!? 10.Bd4 Bd4 11.Nd4 Nd4 12.Bd7 Qd7 13.Qd4 Nc6=) 10.Bc6+= Nc6 11.de5 fe5 12.Qd5 Qf6 (12...Qc7 13.Ng5 Bf5 14.e4+/–) 13.Rd1 (13.Nbd2 Qe6 14.e4 b5+–) 13...Ke7 (13...0-0-0!?+/–) 14.Nc3 Bg4 15.Nb5 (15.Qb3!? Bf3 16.Qb7 (16.gf3?! Qg6 17.Kh1 Rab8+=) 16...Ke6 17.gf3 Qf3 18.Rd6 Kd6 19.Rd1 Qd1 20.Nd1+–) 15...Rad8+= 16.Nd6 Rd6 (16...Bf3 17.gf3 Qd6 18.Qb5+/–) 17.Qd6 (17.Qb5 Bf3 18.Qb7 Ke6 19.gf3 Rhd8 20.Rd6 Rd6+/–) 17...Qd6 18.Rd6 Kd6 19.Rd1 (19.Ng5 Ke7+/–) 19...Ke6+= 20.h3 (20.Ng5 Kf5 21.f3 Kg5 22.fg4 Kg4+/–) 20...Bf3 21.gf3 Rd8 (21...Rc8!?+=) 22.Rd8+/– Nd8 23.f4 Nc6 (23...ef4!? 24.Bg7 f3+/–) 24.Be5+– Ne5 (24...g6 25.Kf1+–) 25.fe5 Ke5 26.f3 (26.Kf1 b5+–) 26...b5 27.Kf2 Kd5 (27...g5 28.Kg3+–) 28.Ke2 (28.e4 Kd4+–) 28...Kc4 (28...g5 29.e4 Ke5 30.Ke3+–) 29.Kd2 (29.f4 a5+–) 29...a5 (29...g5 30.c3+–) 30.h4 (30.f4 g6+–) 30...h6 (30...b4 31.ab4 Kb4 32.e4+–) 31.h5 Kd5 (31...b4 32.ab4 Kb4 33.e4+–) 32.Kd3 Ke5 (32...Kc5 33.c3 Kd5 34.e4 Ke5 35.c4 bc4 36.Kc4+–) 33.f4 Kf5 34.e4 (better is 34.Kd4+–) 34...Kf4 35.Kd4 Kg5 36.e5 Kh5 37.Kd5 Kg6 38.Kd6 Kf7 39.Kd7 h5 40.e6 (40.e6 Kf6 41.e7+–) 1–0. Wall,Bill – Riko, internet, 2005.

    6.Bc6 bc6 7.bc5 Bc5 8.Ne2 Nh6 9.d4 Qb6 10.Ra2=+ ed4 11.ed4 Bd6 12.0-0 0-0 13.Re1 c5 14.dc5= (14.dc5 Qc5 15.Nbc3=). supertimchan (2075) – malaysianisme, net–chess.com, 2004.

    6.Bc6 bc6 7.d4 cd4 8.ed4=+ e4 9.Ne2 f5 10.Bc1 Nf6 11.h3 Bd6 12.0-0 0-0 13.Bf4 a5 14.Bd6 Qd6-/+ 15.c3 f4 16.f3 g5 17.fe4=+ Ne4 18.Rf3? g4–+ 19.hg4 Bg4 20.Nd2 Nd2 21.Qd2 Bf3 22.gf3 Ra7 23.Kf2 Rg7 24.Rg1 Rg1 25.Ng1 Qh6 26.Kf1 ab4 27.Qg2 Qg7 28.Qg7 Kg7 29.ab4 Re8 30.Kf2 Re3 31.Ne2 Kf6 32.Nf4 Rc3 33.b5 Kf5 34.Ne2 Rc2 35.bc6 Rc6 36.Kg3 Rg6 37.Kf2 h5 38.Nc3 Ke6 39.Ne2 Kd6 40.Nf4? Rg5–+ 41.Ng2 Kc6 42.Nh4 Kb5 43.Ke3 Kc4 44.f4 Rg3 45.Nf3 h4 46.Kf2? Rf3! 47.Kf3 Kd4 48.Kg4 Ke4 49.f5 Ke5 50.Kg5 h3 51.f6 h2 52.f7 h1Q 53.f8Q Qg2 54.Kh5 0–1. gstevenson (2110) – jrichner (1995), net–chess.com, 2005.

    6.Bc6 bc6 7.Nf3 cb4 8.0-0 ba3 9.Na3 Nh6 10.d4 e4 11.Nd2 Bd6 12.c4 0-0 13.cd5 cd5 14.Qb3 Kh8 15.Qd5?? Bh2!–+ (15...Bh2 16.Kh2 Qd5–+) 0–1. mwojo (1745) – malaysianisme, net–chess.com, 2003.

    6.Ne2 cb4-/+ 7.f4 ba3 8.Na3 Bd6 9.c4 Nge7 10.cd5 Nd5 11.fe5 Be5 12.Be5 fe5 13.0-0 Qg5 14.Nc4+= Rf8 15.Nd6+/– Ke7 16.Rf8 Kf8 17.Qb3 Nce7 18.Rf1 Kg8 19.Bc4 Be6 20.Qb7 Rd8 21.Nc3 Rd6 22.Ne4 Bc8 23.Qb8 Qg6 24.Nd6 (24.Nd6 h6 25.Nc8+–) 1–0. aschellen (1700) – rthurc2 (1700), internet, 2006.

    5.Bb5 Bd7

    6.Bd7 Kd7 7.bc5 Ke8 8.d4 +/–.

    6.Bd7 Qd7 7.bc5 Bc5 8.Ne2 Nc6 9.0-0 d4 10.ed4 ed4 11.Re1 Nge7 12.d3 0-0= 13.Nd2 b6 14.Nb3 Rad8 15.Nf4 Qd6?? 16.Ne6+– Qf4?? 17.Nd8 Bd6?? 18.g3 Qf5 19.Ne6 Rf7 20.Nbd4 Qh3 21.Qf3 Ne5 22.Qa8 Nc8 23.Qc8 Bf8 24.Qa8 Ng4 25.Qg2 Qg2 26.Kg2 Bc5 27.Nc5 bc5 28.Re8 Rf8 29.Rf8 Kf8 30.Ne6 Kf7 31.Nc5 h5 32.Re1 g5 33.h3 Nh6 34.d4 g4 35.d5 gh3 36.Kh3 Nf5 37.Re6 Ne7 38.d6 Nc6 39.d7 Nd8 40.Re8 Nc6 41.d8Q Nd8 42.Rd8 Kg6 43.Kh4 Kf5 44.Kh5 a5 45.Rd5 1–0. carrafurca (2090) – chily, net–chess.com, 2004.

    6.Bd7 Nd7 7.Nc3 Nb6 8.b5 (8.bc5 Bc5 9.Qg4 Qe7=) 8...d4 (8...a6 9.ba6 Ra6 10.e4+=) 9.Ne4 f5 (9...de3 10.fe3 Nc4 11.Bc3=) 10.Ng3= g6 (10...Nc4 11.Bc1 de3 12.fe3+=) 11.Nf3 (11.Qe2!? Na4 12.Bc1=) 11...Nc4+= 12.Ra2 e4 13.Ng1 Bg7 14.Ba1 (14.ed4 cd4 15.N1e2 Ne7+=) 14...Qd5 15.Qb1 (15.ed4 Ne3 16.Qb1 Ng2 17.Kf1 Nf4 18.dc5 Nf6-/+) 15...Ne7 (better is 15...de3!? 16.de3 Qd2 17.Kf1 Nf6–+) 16.N1e2+= 0-0 17.d3 Nd6 18.Nf4 Qf7 19.0-0 Nd5 20.Nd5 Qd5 21.a4 Rae8 22.Rd1 (22.ed4 cd4 23.Rd1 e3-/+) 22...ed3 23.Rd3 f4 24.Ne2? (better is 24.ef4!? Rf4 25.Rd1-/+) 24...fe3–+ 25.fe3 0–1. Rapp,Reinhold – Lange,Wilfried, corr TT004 BdF, 1996.

    5.c3 c4

    6.d3 b5 7.Nf3 (7.dc4 bc4 8.Bc4 Bb7+/–) 7...Bg4 (7...Bb7 8.a4=) 8.Be2 a5 9.0-0 a4 (9...Qc7!?=) 10.dc4 dc4 11.Nh4 (11.Qd8 Kd8 12.Rd1 Kc7+=) 11...Be2 (11...Qd1!? 12.Bd1 Bd1 13.Rd1 Nc6=+) 12.Qe2= Be7?? (12...Ne7 13.Nd2=) 13.Qg4?? (13.Qh5 Kf8 14.Ng6 hg6 15.Qh8+–) 13...g6= 14.Rd1 Qc7 15.Nd2 f5? (better is 15...Ra6=) 16.Qf3?? (better is 16.Nf5 Ra6 17.Ne7 Ne7 18.Ne4+–) 16...Nh6?? (better is 16...e4 17.Qh3 Qe5-/+) 17.Qa8+– 0-0 (17...Bh4 18.Qd5 Ng4 19.Qb5 Nd7+–) 18.Qd5 Nf7 19.Qb5 Bh4 20.Nf3 (better is 20.Qc4 Bd8+–) 20...Nd6 (20...Bf6 21.Qa4 Bg7 22.Qb5+–) 21.Qe5 (better is 21.Qd5 Nf7 22.Nh4 e4+–) 21...Be7 22.Nd4 (22.Rab1 Re8+–) 22...Bf6 (22...Rf7 23.Ne6 Nd7 24.Qd5+– (24.Nc7?! Ne5 25.Rab1 Nd3+–)) 23.Qg3 (better is 23.Qd5 Nf7 24.Ne6+–) 23...Ne4 (23...Qe7+–) 24.Qc7 Re8 25.Ne6 (25...Re6 26.Qb8 Kf7 27.f3+–; better is 25.Qc4 Kg7+–) 1–0. coachwright – FXRHD, internet, 2003.

    6.d3= cd3 7.Bd3 a6 8.Qh5+= Ke7 9.Nd2 (9.c4 Nh6 10.Nc3 Bg4+=) 9...e4 (9...Be6 10.c4+=) 10.Bc2 Qd7 (10...Be6!?+=) 11.Bb3 f5 12.Nh3 (12.c4 Nf6 13.Qh4 dc4 14.Nc4 Qc7+/–) 12...Kd8 (12...Nf6 13.Qe2+=) 13.Rd1 (13.c4 Nf6 14.Qg5 Qd6+–) 13...Nf6 14.Qe2 (14.Qh4 Ke8+=) 14...b5 (14...a5 15.Nc4 Qb5 16.a4+/–) 15.c4! Bb7 (15...dc4 16.Nc4 Discovered attack) 16.Bf6 gf6 17.cd5 Bd6 18.0-0 (18.Nf4 Bf4 19.ef4 a5+–) 18...Rg8 (18...a5 19.Nf4+/–) 19.f4 (19.f3!? Be5 20.Nf4 Bf4 21.ef4 ef3 22.Nf3+–) 19...Qg7 (19...a5 20.ba5 Ra5 21.Nb1+=) 20.Rf2 Nd7 (20...Qg4 21.Qg4 fg4 22.Ne4+/–) 21.Nf1 Qg4 22.Kh1 (22.Ng3 Qg6+/–) 22...Rc8 (22...Qe2 23.Re2 Rc8 24.Ng3 Rg3 25.hg3+/–) 23.Qd2 Ke7 (23...Qg6 24.Rc1+=) 24.Ng3+/– h5 25.Rg1 h4 26.Bd1 (26.Ne2 Ke8+=) 26...Qg7?? (26...hg3 27.Bg4 gf2 28.Nf2 fg4 29.Ne4 Rc4+/–) 27.Nf5+– (27.Nf5 Kd8 28.Ng7 Rg7 29.Bc2+–) 1–0. Jirovec,Peter – Schmall,Wilhelm, Vienna op–B, 2003.

    6.d3 cd3 7.Bd3 Ne7 8.Nd2=.

    6.Be2 e4 7.f3 f5 8.fe4 fe4 9.Bg4?? Nc6 10.Bc8=+ Rc8 11.Ne2 Ne5 12.Nf4 Nf6 13.0-0 Bd6 14.Ne6 Qe7 15.Ng5?? h6 16.Nh3 g5 17.a4 0-0 18.b5 Nd3 19.Ba3 Kg7 20.Bd6 Qd6 21.Nf2 Ne5 22.Na3 h5 23.Nc2 Nfg4 24.Nd4 Nf2–+ 25.Rf2 Ng4 26.Nf5 Rf5! 27.Rf5 Qh2 28.Kf1 Qh1 29.Ke2 Qg2 30.Ke1 Nh2 31.Qe2 Nf3 32.Rf3 ef3 33.Qg2 fg2 34.Kf2 Kf6 35.Kg2 Kf5 36.Kf3 h4 37.Rg1 Re8 38.Rg4 Re4 39.Re4 de4 40.Kg2 g4 41.a5 b6 42.ab6 ab6 43.Kh2 Ke5 44.Kg2 Kd5 45.Kh2 Kc5 46.Kg2 Kb5 47.Kh2 Ka4 48.Kg2 Kb3 49.Kf2 Kc2 50.Ke2 h3 51.Kf2 Kd2 52.Kg3 Ke3 53.Kg4 Kd2 54.Kh3 e3 55.Kg3 e2 56.Kf4 e1Q 57.Kf5 Kc3 58.Kf4 Kd3 59.Kf3 c3 60.Kf4 c2 61.Kf5 c1Q (61...c1Q 62.Kg4 Qe4 63.Kh5 Qch1 64.Kg5 Qhh4; 61...Qe4 62.Kf6 c1Q 63.Kg7 Qg5 64.Kf7 Qee7) 0–1. horacyad2010 – przekar, internet, 2011.

    5.c3 Bf5

    6.Bb5 Nc6 7.h3 Bd6 8.Nf3 Nge7 9.Nh4 Qd7 10.d3 0-0 11.e4 Bg6?? 12.Nd2 a6 13.Bc6 bc6 14.Qf3 cb4 15.ab4 Rab8 16.Ra6 c5 17.Ra2 cb4 18.0-0 bc3 19.Bc3 d4 20.Ba1 f5 21.Ng6= Ng6 22.ef5 Rf5 23.Qd5 Kh8 24.Ne4+/– Rd8 25.Ra6 Ne7?? 26.Qd6+– Qd6 27.Nd6 Rf6 28.Re1 Rfd6 29.Rd6 Rd6 30.Re5 Rd7 31.Bd4! Kg8 32.Bc5 Kf8? 33.Be7 Re7 34.Re7 Ke7 35.Kf1 Ke6 36.Ke2 1–0. PoPer – ThePawnXXXI, Live Game Caissa's Web, 2004.

    6.Bb5 Bd7 7.Bd7 Nd7 8.d4 =.

    5.c4 cb4

    6.ab4 Bb4 7.cd5 Qd5 8.Nc3 Bc3 9.Bc3 Ne7 10.Nf3 0-0 11.Rc1 Bg4 12.Bb4 Nbc6?? (better 12...Bf3 13.Qf3 Qf3 14.gf3 Rc8 15.Rc8 Nc8 16.Bc4 Kh8-/+) 13.Bc4 (better 13.Be7 Rf7 14.Bc4+–) 13...Bf3 (13...Nb4 14.Bd5 Ned5 15.0-0+–) 14.Bd5 (14.Qf3 Nb4 15.Bd5 Ned5+–) 14...Bd5 15.Be7 Ne7 16.0-0 b6 (16...Rfc8 17.Ra1+–) 17.d4 Be6 18.de5 fe5 (18...Rfd8 19.Qh5 Bf7+–) 19.Qd6 Bf7 (19...Kf7 20.Rc7 (worse 20.Qe5 Rfc8+–) 20...Rfe8 21.f4+–) 20.Qe7 Rae8 (20...Rfe8 21.Qb7 a5 22.Rc7+–) 21.Qa3 (21.Qa7!? b5+–) 21...a5 22.Rc7 (better 22.Rc6 Ra8 23.Rb6 a4+–) 22...Bg6 (22...Re6 23.Rd1+–) 23.Qb3 Rf7 24.Qb6 Rc7 25.Qc7 Rf8 (25...e4 26.Ra1 h5 27.Ra5+–) 26.Qa5 (26.Ra1 h5 27.e4 Kh7+–) 26...Rf7 (26...e4 27.Qb6+–) 27.Qe5 Rf8 28.Rc1 h6 (28...Bf7 29.Rc7 Rb8 30.f4+–) 29.h4 (29.Rc7 Bf7 30.Qe7 g6+–) 29...Kh7 (29...Re8 30.Qd5 Bf7+–) 30.h5 Bf7 31.Qf5 (31.Qe7 Kg8 32.Rc7 Re8 33.Qf7 Kh7 34.Qg7) 31...Kg8 32.Rc7 g6 33.hg6 Bg6 (33...Bb3 34.Qh5 Ba2 35.Qh6 Rf7 36.Rc8 Rf8 37.Qf8) 34.Qg6 (34.Qg6 Kh8 35.Qg7) 1–0. BeepBeepImAJeep (2575) – Apusol (1670), lichess.org, 2017.

    6.cd5 Qd5 7.Nf3 e4 8.Nd4 Nc6 9.Bb5 Bd7 10.Bc6 bc6 11.0-0? (better 11.ab4 Bb4 12.Nc3 Bc3 13.Bc3=+) 11...c5-+ 12.Ne2 Bd6 13.ab4 cb4 14.Nd4 (14.d3 ed3 15.Nd4 Ne7-/+) 14...Ne7 (better 14...Nh6!?-+) 15.d3-/+ ed3 16.Qd3 0-0 17.Nd2 a5 18.Ne4? (better 18.e4!? Qb7 19.N4b3-/+) 18...Be5 19.f4 Bd4 20.Bd4?? (20.Qd4 Qd4 21.Bd4-+ (21.ed4?? a4-+)) 20...Bb5 21.Qb1 Bf1 22.Kf1 Nf5 23.Nc5 (23.Qa2 Qa2 24.Ra2 b3-+) 23...Nd4 24.ed4 Qd4 25.Qb3 (25.Qa2 Rf7 26.Ne6-+) 25...Kh8 26.Rc1 (26.Qd1 Qc5 27.Rc1-+) 26...Qf4 27.Kg1 Qc1 (27...Qc1 28.Kf2 Qc5 29.Qe3 Qe3 30.Ke3 Rad8 31.h3 b3 32.g3 b2 33.h4 b1Q 34.Kf2 Qf5 35.Kg1 Rd2 36.g4 Qb1) 0-1. norba94 (2350) - mecker (2305), Rated Blitz game, lichess.org, 2016.

    5.bc5 Bc5

    6.Bb5 Nc6 7.d4 ed4 8.ed4 Bd6 9.Qh5 g6 10.Qf3 (10.Qd5?? Bb4 11.ab4 Qd5–+) 10...Be6 (10...a6 11.Bd3 Nge7 12.Nc3+=) 11.Ne2 Qb6 12.a4 a6 13.Bc6 Qc6 14.0-0 0-0-0 (14...Ne7 15.Nf4 Bf4 16.Qf4+=) 15.Ba3 Bc7 (15...Qc2?? 16.Rc1 Qc1 17.Nc1+–) 16.Nd2 (16.Nbc3 Nh6=) 16...h5 (16...Nh6 17.Qb3+=) 17.h3 (17.Rfe1!?=) 17...g5+= 18.Qb3 h4 (18...Re8 19.Rac1+=) 19.f3 (19.Rac1 Kb8 20.c4 Nh6=) 19...Re8-/+ 20.Kf2 (20.Rfe1 f5-/+) 20...f5 (20...Nh6 21.Bb4–+) 21.Rfc1 Kb8 (21...Bf7 22.c4 Qe6 23.Qd3-/+) 22.c4-/+ g4 (22...Nf6!?-/+) 23.cd5+= Qd5 (23...Bd5? 24.Rc6 Bb3 25.Rc7 Kc7 26.Nb3+–) 24.Rab1 Nf6 25.Qd5 Bd5 26.Nc4 Bc4 27.Rc4 Nd5 28.Bc1 Re6 29.Rc5 (worse is 29.hg4 fg4 30.Bg5 g3 31.Kf1 h3 32.gh3 Rh3 33.Rc7 Kc7–+ (33...Nc7?! 34.Bf4-/+)) 29...Rhe8 30.Rb2 Nb4 31.Rc3 g3 32.Kf1 (32.Ke1 b6+=) 32...b6 33.Bg5 (33.Rc4 Nd5-/+) 33...Nd5 34.Rc5 Re2 35.Re2 Re2 36.Rd5 Rf2 (36...Rf2 37.Kg1 f4-/+) 0–1. Pischner,Rainer (2355) – Nonnenmacher,Thomas (2070), BdF T, 2004.

    6.c4 a6 7.cd5 Qd5 8.Nc3 Qd6?? (8...Qc6 9.Rc1 Nd7 10.d4 ed4 11.Na4+/–) 9.Be2?? (better is 9.Ne4 Qb6 10.Nc5+–) 9...Be6 (9...Bf5 10.Bf3 Nc6 11.Ne4 Be4 12.Be4=) 10.Nf3 Nc6 11.0-0 Nge7 (11...Bf5!?=) 12.d4+= ed4 13.ed4 (13.Ne4!? Qd5 14.Nc5 Qc5 15.Nd4 Nd4 16.Bd4+/–) 13...Nd4= 14.Nd4 Bd4?? (14...Qd4 15.Bh5 Ng6 16.Qf3=) 15.Bf3?? (better is 15.Ne4 Bf2 16.Rf2 (16.Kf2?! Qh2 17.Nd6 Kf8 18.Nb7 Rb8+/–; worse is 16.Nf2 Qd1 17.Rad1 Rc8+–) 16...Qd1 17.Rd1+– (17.Bd1?! 0-0-0+–)) 15...0-0-0 (15...Rd8!? 16.Ne4 Qe5 17.Bd4 Rd4+= (worse is 17...Qd4 18.Qd4 Rd4 19.Rfd1=)) 16.Rc1= Bc3 17.Bc3 (17.Rc3!? Kb8 18.Qc2+=) 17...Qd1+= 18.Rfd1 Rd1 19.Rd1 Bb3 (19...Nc6 20.Be4+=) 20.Rc1 (better is 20.Rb1 Bd5 21.Re1 Bf3 22.Re7+=) 20...Rd8?? (better is 20...Nc6+=) 21.Bf6 Kb8?? (better is 21...Kd7 22.Bg7 Bd5 23.Bg4 Kd6+/–) 22.Be7+– Rd7 23.Bb4 b6 24.Bc3 a5 25.Be5 Ka7 26.Rc7 Rc7 27.Bc7 Be6 28.Bd6 b5 29.Kf1 Kb6 30.Ke2 b4 31.ab4 ab4 (31...a4 32.Be4 g6 33.Kd3+–) 32.Bb4 Kb5 33.Bc3 Bc4 34.Kd2 Kc5 (34...g6 35.Bd4+–) 35.Bg7 Bd5 36.Bd5 Kd5 37.Ke3 Ke6 38.Ke4 Kf7 39.Bb2 Kg6 40.f4 h5 (40...Kf7 41.g4+–) 41.g3 Kh6 42.h3 Kg6 43.g4 hg4 44.hg4 Kf7 45.Kf5 Ke7 46.Kg6 Ke6 47.Kg7 Kd5 48.f5 Ke4 49.f6 Kf4 50.f7 Kg4 (50...Kf3 51.f8Q Ke2 52.g5 Kd3 53.Qf5 Kc4 54.g6 Kb3 55.Qb5 Kc2 56.Kf7 Kd2 57.g7 Ke3 58.g8Q Kf2 59.Qg4 Ke3 60.Qbe2) 51.f8Q Kg3 (51...Kh3 52.Qf2 Kg4 53.Be5 Kg5 54.Qf3 Kh4 55.Bf6) 52.Kg6 (52.Qf1 Kg4 53.Be5 Kh4 54.Qf3 Kg5 55.Bf6) 52...Kg4 (52...Kg2 53.Bd4 Kh3 54.Qf2 Kg4 55.Be5 Kh3 56.Qg3) 53.Qf5 (53.Be5 Kh4 54.Qf4 Kh3 55.Qg3) 53...Kg3 54.Be5 (54.Bd4 Kg2 55.Qf2 Kh3 56.Be5 Kg4 57.Qg3) 54...Kg2 55.Qf4 1–0. Fournier,Frederic – elmamut4, Active, 2008.

    6.c4 Qb6 7.Ra2=.

    6.c4 Qb6 7.Nc3 Ne7 8.cd5+=.

    6.c4 dc4 7.Bc4 Nc6 8.Qb3 Qc7?? (better 8...Nh6=) 9.Bg8+- Bf5 10.Be6 Ne7 (10...Be6 11.Qe6 Qe7 12.Qe7 Ke7 13.Nc3+-) 11.Nf3 (11.Bf5 Nf5 12.Qe6 Ne7+-) 11...Qc6 (11...Be6 12.Qe6 Qc6 13.Qc6 Nc6 14.Nc3+-) 12.Bf5 Nf5 13.0-0 0-0-0 (13...e4 14.Ne1+-) 14.d4! ed4 15.ed4 (15.Qd3 g6 16.ed4 Kb8+-) 15...Nd4 16.Nd4 (better 16.Bd4 Bd4 17.Ra2+-) 16...Rd4 (16...Bd4 17.Bd4 Rd4+-) 17.Bd4 Bd4 18.Rc1 (better 18.Ra2 Kb8 19.Rc2+-) 18...Qc1 19.Qd1 Qd1 0-1. ClayPigeons (2175) - salahsalimhanebaly (2230), Rated Bullet game, lichess.org, 2019.

    6.c4 Nc6 7.Nc3 Be6 8.cd5 Bd5 9.f4 (better is 9.Qg4 g6 10.Nd5 Qd5 11.Bc4=) 9...ef4?? (better is 9...Rc8=) 10.Qh5+– g6 11.Qd5 Bd6 (better is 11...fe3 12.Qe6 Qe7 13.Qe7 Nge7 14.de3 Be3+–) 12.Bc4 Qe7 13.Nb5 (13.Bb5!? Kd7 14.Rd1 Rd8+–) 13...Rd8 14.Qf3 fe3 15.de3 (15.Nd6 Rd6 16.de3 Nh6+–) 15...Bc5 (better is 15...Be5!? 16.Qf2 a6 17.Bg8 Bb2 18.Qb2 Qe3 19.Ne2 ab5+–) 16.Nc7?? (better is 16.Ne2+–) 16...Qc7-/+ 0–1. malaysianisme – supertimchan (2075), net–chess.com, 2004.

    6.c4 Nc6 7.cd5 Qd5 8.Nc3 Qf7 9.Rc1 Bb6 (9...Be6 10.d4 Rd8 11.Ne4=) 10.Nb5 (10.Na4=) 10...Bc7 (10...Qe7 11.Qf3 Bd7 12.Bc4=) 11.Nc7 (11.Bc4 Qd7+=) 11...Qc7+= 12.Bc4 Nh6 (12...Bf5 13.d4+=) 13.Nf3 (13.d4 Bg4 14.Ne2 Rd8+=) 13...Nf7 (13...Bg4 14.h3 Bh5 15.e4=) 14.0-0 (14.d4 Nd6+=) 14...0-0 (14...Bg4 15.d4 e4 16.Qc2 ef3 17.Qe4 Nfe5 18.de5+=) 15.Ne1 (15.d4 Bg4+=) 15...Kh8 (15...Bf5 16.d4+=) 16.f4 ef4 17.Rf4 The passed pawn on d2 will become decisive later 17...Nfe5 18.Be2 (18.Bb3 Qd6+=) 18...Ng6 (18...Be6 19.Nd3+=) 19.Rf2 Be6 20.Nd3 Qf7 (20...Qe7 21.Nc5+=) 21.Nc5+/– Rac8 22.Ne4 (better is 22.d4 Nce7 23.Bd3+/–) 22...Rfd8? (22...Qe7!?+=) 23.Nf6! Qe7 (23...Qf6 24.Bf6) 24.Nh5 Rg8 (24...Nce5 25.Rc8 Bc8 26.e4+/–) 25.Qf1 (25.Qa4 Rcf8 26.Rf8 Qf8+–) 25...Rcf8 (25...Qd6 26.Ng3+/–) 26.Bd3 (26.d3 Nce5+/–) 26...Rf2 (26...Nce5 27.Bg6 Ng6 28.Rf8 Rf8 29.Bg7 Qg7 30.Ng7 Rf1 31.Kf1 Kg7 32.Rc7 Kh6 33.Rb7 Bc4 34.Kf2+–) 27.Qf2 Qf8? (27...Nge5!? 28.Be4 Qg5+–) 28.Rf1 (28.Qf8!? Nf8 29.Be4 Bf7 30.Bc6 bc6 31.Ng7 Rg7 32.Rc6 Kg8 33.Bg7 Kg7+–) 28...Qf2 29.Rf2 Bg4? (better is 29...Nge5 30.Be2 Bc4+–) 30.Bg6 hg6 31.Ng3 (better is 31.Ng7!? Kh7 32.Rf4 Rd8 33.Rg4 Rd2+–) 31...Be6 32.Ne4 Bf5 (32...Rd8 33.Ng5 Bc4 34.Nf7 Bf7 35.Rf7 Rd2 36.Rb7+–) 33.Rf4 (33.Ng5 Re8+–) 33...Re8 (33...Rd8 34.Bc3+–) 34.Ng5 (34.Nd6 Re7 35.e4 Rd7+–) 34...Kg8 (34...Nd8 35.Rc4 Nc6 36.e4+–) 35.Rh4 (35.e4!? Bc8+–) 35...Rd8 (35...Bd3 36.Kf2+–) 36.d4 White gets strong initiative 36...Ne5 (36...Bb1 37.Rf4+–) 37.e4 (37.de5!? Rd1 38.Kf2 Rd2 39.Kg3 Rb2+–) 37...Nc4 (37...Nd3 38.ef5 gf5 39.Bc3+–) 38.ef5 Nb2 39.fg6 Rc8 (39...Re8 40.Nf7 Kf8 41.Ne5+–) 40.Re4 Nc4 (40...Nd3 41.Kf1+–) 41.a4 (41.Re7 Rb8+–) 41...Nb6 (41...Nd6 42.Re7 Nf5 43.Rd7+–) 42.a5 (42.Re7 Rb8+–) 42...Nc4?! (42...Nd5+–) 43.Re5 (better is 43.Re7+–) 43...Ne5-/+ 44.de5 The passed pawn on e5 will quickly become a dangerous weapon 44...Rc5 45.Nf7 Ra5 46.h4 (46.Kf2 b5-/+) 46...b5–+ 47.h5? (better is 47.Kf2–+) 47...b4 48.h6 gh6 49.e6 Kf8 50.Nd8 (50.Nd6 Re5 51.Kf2–+) 50...b3 51.g7 (51.e7 Ke7 52.Nc6 Kf6 53.Na5–+) 51...Kg7 52.e7 Re5 (52...Re5 53.Kh2 Re7–+) 0–1. Vandenburg,V – Brattin,B, Detroit East op, 1983.

    6.c4 Be6 7.cd5 Qd5 8.Nf3 Nc6 9.Nc3 Qd7 10.Bb5 Nge7 11.0-0 0-0 12.d4 ed4 13.Bc6 Nc6 14.ed4 (14.Ne4 Be7 15.Nd4 Nd4 16.Bd4 b6+=) 14...Nd4 15.Nd4 Bd4 16.Re1 Bf7?? (16...Rad8 17.Na4-/+) 17.Rb1?? (better is 17.Ne2 Bf2 18.Kf2+/–) 17...Rad8-/+ 18.Kf1? (18.Ne4!?-/+) 18...Bc4 (18...Qc7!? 19.Qf3 Bc3 20.Qc3 Qh2 21.f4–+) 19.Kg1 Qf5 20.Qf3 Qg6 (20...Qf3 21.gf3 b5 22.Nb5-/+) 21.Qg3 Qf5 (21...Qg3!? 22.hg3 Rfe8 23.Re8 Re8 24.Na4 Bb2 25.Nb2–+) 22.Na4 (better is 22.Qf3!? Qf3 23.gf3–+) 22...Bb2 23.Nb2 Bd5 24.Rbc1 Be4 25.Nc4 Rd3 26.f3 Qc5?? (26...Bc6 27.Ne3 Qb5 28.Qg4-/+) 27.Kh1?? (27.Ne3 Qa3 28.fe4 Qd6+–) 27...Bf3?? (better is 27...Bc6-/+) 28.gf3+/– Qc4?? (better is 28...Qg5 29.Rb1 Rc3+/–) 29.Rc4+– (29.Rc4 Rd5 30.Rc7+–) 1–0. Fournier,Frederic (1835) – dehlia (1760), Active, 2005.

    6.c4 Ne7 7.Nc3 d4 8.ed4 ed4 (8...Bd4 9.Nge2+=) 9.Ne4 (better is 9.Qh5 Ng6 10.Qc5+/–) 9...Nd7?? (better is 9...Qb6=) 10.Nc5+– Nc5 11.d3 (better is 11.Qh5 Ng6 12.Qc5+–) 11...0-0 12.Nf3 The isolani on d4 becomes a target 12...Re8 13.Be2 Bg4 14.0-0 (14.Nd4? Be2 15.Ne2 Nd3 16.Kf1 Nb2–+) 14...Ng6 15.Nd4 Be2 16.Ne2 Qc7 (better is 16...Qd3 17.Ng3 Rad8+=) 17.d4 Rad8 18.Qc2 Ne4 19.c5 Rd5 20.Ng3 (20.f3!? Ng5+–) 20...Ng3+/– 21.hg3 Rh5 (21...Qc6!?+=) 22.Rfe1+/– Ne7 23.Re3 Qb8?? (better is 23...Rd5+/–) 24.Rae1+– Qc7 25.Qe2 Kf7 (25...Rd5 26.Re7 Re7 27.Qe7 Qc6+–) 26.Qh5 (26.Qh5 Kf8 27.d5 Qc5 28.Re6+–) 1–0. Fournier,Frederic – JohnnyCanuck, Partie evaluee, 2007.

    6.c4 Ne7 7.d4 Qb6 (better is 7...ed4 8.ed4 Qb6=) 8.Qc2? (better is 8.Bc3 ed4 9.ed4 Qe6 10.Be2+=) 8...ed4-/+ 9.ed4 Bd4 10.cd5?? (better is 10.Bd4 Qd4 11.Nc3 Qe5 12.Be2-/+) 10...Bb2–+ (10...Bb2 11.Ra2 Bd4–+; worse is 10...Qb2 11.Qb2 Bb2 12.Ra2–+) 0–1. ncc_1701 – kofti, ChessWorld.net, 2005.

    6.c4 Ne7 7.cd5 Qd5 8.Nc3+/- Qf7 9.Nf3 0-0 10.Be2 (10.Ne4 Bb6+/-) 10...Nbc6 (10...Bb6 11.Ne4=) 11.0-0 (11.Ne4 b6+=) 11...Be6 12.Rc1 Rad8 13.Qc2 Bf5 14.Qa4 Be6 15.Ne4 Bb6 16.Nc5 Bc5 17.Rc5 Nd5 (17...Bb3 18.Qe4+=) 18.Rfc1 Nb6 19.Qb5 e4 (19...Bg4 20.d3+=) 20.Nd4+/- Nd4 21.Bd4 (worse 21.ed4 Nd5=) 21...Nd5 22.Bc4 (22.d3 b6 23.R5c2 f5+/-) 22...Rd7 23.Qb3 (23.Qb1 Qg6+=) 23...Rfd8 (23...b6 24.Rc6+=) 24.a4 (24.Qc2 Qg6+=) 24...h6 (24...b6 25.Rc6 Rc7 26.Qb5 Rc6 27.Qc6=) 25.a5 Kh7 (25...Nf4 26.ef4 Bc4 27.R5c4 (worse 27.Qc4 Rd4 28.Qf7 Kf7=) 27...Rd4 28.Rd4 Qb3 29.Rd8 Kh7 30.h3+=) 26.d3 (26.Qb1 Qg6+/-) 26...ed3 (26...Nf4! 27.ef4 Bc4 28.Qc4 Qc4 29.R5c4 Rd4 30.Rd4 Rd4 31.de4 Re4=) 27.Qd3+= Kh8 (27...Qg6 28.f3+=) 28.Bb5 Rd6 29.Qe2 (29.Qe4 Qg8+/-) 29...Qg6 30.Bd3 (30.f3 Bh3 31.Qc2 Bf5+=) 30...Qg5 (30...Bf5 31.Bf5 Qf5 32.h3+=) 31.Be4+/- Qh4 32.Bf3 b6 33.g3 Qh3 (33...Qg5 34.Rc6+/-) 34.ab6 ab6 35.R5c2 (35.Rc6 Kg8+/-) 35...Bf5 (35...Kh7 36.Ra1+/-) 36.Rc6 Rc6 (36...Rc8 37.Bg2 Rcc6 38.Rc6 (38.Bh3?? Rc1 39.Kg2 Be4 40.f3 Rc2-+) 38...Rc6 39.Bh3 Bh3 40.Bb2+-) 37.Rc6+- Bg6?? (better 37...Kh7+-) 38.Bg2 (better 38.Bg4 Bh5 39.Bh5 Qd7+-) 38...Qf5?? (better 38...Qd7 39.Rc1 Kg8+/-) 39.e4+- Qd7 (39...Nf4 40.gf4 Qd7 41.Bb6 Qc6 42.Bd8 Qc1 43.Qf1 Qf4+-) 40.ed5 Qa7 (40...Re8 41.Be3+-) 41.Bb6 (better 41.Rf6 gf6 42.Bf6 Kg8 43.Bd8 b5+-) 41...Qa1 42.Qf1 Qf1 43.Kf1 Rb8 44.d6 Bf5 45.Bc7 Rb1 46.Ke2 Be4 (46...Rb2 47.Ke3 Rb3 48.Kf4 Rb5+-) 47.Be4 Rb2 (47...Rb4 48.Bg6 Rg4 49.Bd3 g6 50.d7 Kg7 51.d8Q Re4 52.Be4 h5 53.Qf6 Kh7 54.Qg6 Kh8 55.Be5) 48.Ke3 g6 (48...Rb3 49.Bd3 g6 50.d7 Rb8 51.Bb8 Kg7 52.d8Q h5 53.Qf6 Kh7 54.Qg6 Kh8 55.Be5) 49.Bd3 Rb3 (49...Kg8 50.d7 h5 51.d8Q Kh7 52.Rf6 Ra2 53.Rf7 Kh6 54.Bf4 g5 55.Qg5) 50.d7 Kg7 (50...Rb8 51.Bb8 Kg7 52.d8Q h5 53.Qe8 g5 54.Rf6 Kf6 55.Be5) 51.d8Q f5 (51...Rb5 52.Qf6 Kh7 53.Qg6 Kh8 54.Qh7) 52.Qf6 Kg8 53.Re6 (53.Qg6 Kf8 54.Bd6) 53...Rc3 (53...f4 54.gf4 Rd3 55.Kd3 Kh7 56.Qg6 Kh8 57.Be5) 54.Re8 Kh7 55.Rh8 1-0. cipiripi (2320) - pacal56 (2260), Rated Blitz game, lichess.org, 2015.

    6.d3 Nc6 7.Nf3 Qb6 8.Qc1 Be6 9.Be2 Nge7 10.Nc3 Rc8 11.Na4?? (better 11.0-0=+) 11...Qa5-+ 12.Nc3 d4 13.Qd2 dc3 14.Bc3 Qc7 15.0-0 0-0 16.Rfb1 Rfd8 17.Ne1 Nd5 18.Bb2 e4! 19.d4 (19.de4 Ne3 Combination) 19...Bd6 20.g3 (20.c4 Nde7 21.Kh1 Na5-+) 20...Bh3 (better 20...Na5-+) 21.c4 Nde7 22.Qc2 White prepares c5 22...b6 (22...Qd7 23.c5 Bb8 24.f3-+) 23.Bc3 (23.c5 bc5 24.dc5 Be5-+) 23...Qd7 24.a4 Na5 (better 24...Bf5!?-+) 25.c5 Bc7 (25...Bc5 26.dc5 Rc5-/+) 26.Bb5? (better 26.Ba5!? ba5 27.Ba6-/+) 26...Nac6-+ 27.cb6 ab6 28.Rd1 (28.Bb4 Qe6-+) 28...Nd5 (better 28...Qe6-+) 29.Bd2 Bb8 30.Qe4 Qf5 (30...Bf5 31.Qh4 Qe6 32.Ba6-+) 31.Qh1 (31.Qf5 Bf5 32.f3 Bg6=+) 31...Nde7 (31...Qh5 32.Rab1-/+) 32.e4 (32.Rab1 Qh5-/+) 32...Qh5 33.Be3 Ne5! 34.Rd2 (34.de5 Rd1 Pinning (34...Rd1 Deflection)) 34...Nc4-+ 35.Bc4 Rc4 36.Nd3 Rdc8 37.f3 Bd7 (better 37...Qa5-+) 38.e5? (better 38.d5-+) 38...Nd5 39.Nf4 Qf5?? (better 39...Nf4 40.gf4 Rc1 41.Rd1 Rd1 42.Rd1 Ba4-+) 40.Kf2?? (better 40.Nd5 Qe6 41.f4 Ra4 42.Rb1+/-) 40...Ne3-+ 41.Ke3 0-1. Williams,Barry - Post,Martin, NZL Wanganui Chess Club A Grade Rapid, 2002.

    6.Ne2 Ne7 7.d4 ed4 (7...Bd6 8.Nbc3=+) 8.Nd4 Bd4 9.Bd4 Nbc6 10.Bb2 0-0 11.Bd3 g6 (11...Ne5 12.0-0=) 12.Nd2 Bf5 13.h4 Bd3 14.cd3 d4 15.e4 f5 16.h5 fe4 17.Ne4 (17.hg6 Ng6 18.Qb3 Kg7 19.Qb7 Nge7+=) 17...Nd5 (17...Rc8 18.hg6 Qa5 19.Kf1 hg6 20.Qg4+–) 18.hg6 hg6 19.Qg4 (better 19.Bc1+=) 19...Rf4?? (better 19...Nf4 20.Rd1 Ne5=+) 20.Qg6 Kf8 21.Rh8 Ke7 22.Rd8 (22.Rh7 Kf8 23.Qg7 Ke8 24.Rh8 Rf8 25.Rf8) 22...Rd8+– 23.Qg7 (better 23.Bc1 Rff8 24.Bg5 Kd7 25.Bd8 Rd8 26.Nc5 Kc8+–) 23...Rf7 24.Qg5 Nf6 (24...Ke8 25.Kd2 Rdd7 26.Re1+–) 25.Kf1 (better 25.Qc5 Ke8 26.Nd6 Rd6 27.Qd6 Re7 28.Kd2 Kf7+–) 25...Rg8 (25...Rd5 26.Qg6 Ne5+–) 26.Qc5 Ke8 27.Nd6 Ke7 (27...Kf8 28.Nb7 Ne7 29.Bd4+–) 28.Nf7 (better 28.Re1 Kd7 29.Nf7 Ng4 30.Qd6 Kc8+–) 28...Kf7 29.Re1 (29.Bd4 Nd4 30.Qd4 Rh8+–) 29...Re8 (29...Rd8 30.Qf5 Rd5 31.Qe6 Kg7 32.Re3+–) 30.Bd4 Nd4 (30...Re1 31.Ke1 Nd4 32.Qd4+–) 31.Qd4 (better 31.Re8 Ne8 32.Qd4 a5+–) 31...Re1 32.Ke1 a5 33.g4 b5 34.g5 Nh5 35.f4 Kg6 36.Qd6 Kf5 37.Qd7 (37.Qe5 Kg4 38.g6 b4 39.Qg5 Kf3 40.Qh5 Kg2 41.g7 Kg3 42.g8Q Kf4 43.Qgg5) 37...Kf4 38.Qb5 Ng3 39.Qb8 (39.g6 Nf5+–) 39...Kg4 40.Qg8 (40.g6 Nf5+–) 40...Nf5 41.g6 Ne7 42.Qe6 Nf5 (42...Kf4 43.Qe7 Kg4 44.g7 Kf5 45.g8Q a4 46.Qgg5) 43.g7 Kg5 (43...Kh4 44.g8Q a4 45.Qe4 Kh5 46.Qf5 Kh4 47.Qgg5) 44.g8Q (44.g8Q Kh5 45.Qf5 Kh4 46.Qgg5) 1–0. SieStein – AnonymousD, lichess.org, 2019.

    6.Be5 fe5-/+ 7.Qh5 Kf8 8.Qe5 Nc6 (8...Nf6 9.Nf3–+) 9.Qc3 (9.Qb2 Nf6–+) 9...Be7 (9...Qe7 10.Be2–+) 10.d4-/+ Qa5 (10...g6 11.Nd2-/+) 11.Nf3 (11.Qa5 Na5 12.Bd3 Nf6-/+) 11...Nf6 (11...Bf5 12.Qa5 Na5 13.Nc3–+) 12.Bd3 Be6 13.0-0 Rc8 14.Rc1 (14.Qb2 Qc7-/+) 14...Ne4 (14...Qc3 15.Nc3 Bg4 16.Ne2-/+) 15.Qa5 (15.Qb2 Nd6-/+) 15...Na5 16.Nbd2 Nc3 (16...Nd2 17.Nd2 Rc3 18.a4-/+) 17.e4 (17.Re1 b5-/+) 17...g6 (17...de4 18.Ne4 Bc4 19.Nc3 Bd3 20.Ne5–+) 18.Kh1 (18.Re1 a6-/+) 18...Kg7 (18...de4 19.Ne4 Bd5 20.Nfd2–+) 19.ed5 (better is 19.Re1 Rhe8 20.e5-/+) 19...Bd5 20.Re1 Bf6 21.Re3 Rhe8 (21...Nc6 22.Ne4 Nd4 23.Nf6 Bf3 24.Nd7–+) 22.Rae1 Red8 23.Rc1 (23.Bf1 Bf7–+) 23...Nc6 24.Ne4 (24.Bc4 Nd4 25.Rc3 Nf3–+) 24...Be4 25.Be4 Ne4 (worse is 25...Bd4 26.Nd4 Nd4 27.Bb7–+) 26.Re4 Nd4 27.Nd4 Rd4 (27...Rd4 28.Rd4 Bd4–+) 0–1. Ackermann,Robert – Stadler,Florian, Mittelfranken–ch U20, 1997.

    6.Qf3 Nc6 7.Bb5 Nge7 8.Ne2 0-0 9.c4 (better is 9.Nbc3+=) 9...e4–+ 10.Qh5 g6 11.Qh6 Nf5 12.Qh3 Ne3 (12...Ne3 13.Qg3 Nc2 14.Kd1 Na1 15.Ba1 a6 16.Bc6 bc6–+) 0–1. Valica,Slavo (1650) – Fournier,Frederic (1795), b2–b4.com, 2005.

    6.Nf3 a6 7.c4 dc4!? 8.Bc4 b5 9.Bg8 Rg8+=.

    6.Nf3 a6 7.c4 d4 8.ed4 ed4 9.d3 Nc6 10.Be2 Bg4 11.0-0 Bf3 12.Bf3 (worse is 12.gf3 Bd6+=) 12...Nge7?? (12...Qb6 13.Re1 Nge7 14.Nd2+/–) 13.Nd2 (better is 13.Bc6 Nc6 14.Qh5 g6 15.Qc5 Rc8+–) 13...g5? (better is 13...0-0+=) 14.Ne4+– Rf8?? (14...Qb6 15.Rb1 Qa5 16.Nf6 Kf7+–) 15.Nc5 Qb6 16.Nb3 (better is 16.Bh5!? Ng6 17.Qe2 Nce5 18.Bd4 0-0-0 19.Bg6 hg6+–) 16...0-0-0 17.Rb1 h5 (17...f5 18.h3+–) 18.Bc6 Nc6 19.Nd2 g4 20.g3 (better is 20.Ne4!? Qc7+–) 20...f5 21.Qb3 (21.Re1 f4+–) 21...Qc7 Black plans f4 (21...Qb3 22.Nb3 Rfe8 23.Rfe1+–) 22.a4 Na5 23.Qd1 f4 (23...h4 24.Re1+–) 24.Ne4 fg3 25.fg3 h4 (25...Rf1 26.Qf1 Qe5+–) 26.Qg4 Kb8 27.Rf8 Rf8 28.Bd4 Ka8 29.Bb6 Qc6 (29...Qe5 30.Qh4 Nc6 31.Qh6+–) 30.Ba5 Qa4 31.Qg7 Rb8 32.Bc7 Rc8 33.Bf4 Qc6 34.Qe5 (34.Nd6!? Rb8+–) 34...Rd8 (34...hg3 35.hg3 Re8 36.Qd4+–) 35.Nd6 Qb6 (35...hg3 36.hg3 b6+–) 36.Rb6 1–0. Fournier,Frederic – bobneira, Active, 2008.

    6.Nf3 a6 7.c4 Bf5 8.d4+= ed4 9.Bd4 Bd4 10.Nd4 (worse is 10.ed4 Qe7 11.Kd2 Qc7=) 10...Qd7 (10...Bb1 11.Rb1 dc4 12.Bc4+–) 11.Nc3 (11.Nf5!? Qf5 12.cd5+/–) 11...dc4+/– 12.Nf5 Qf5 13.Nd5 Kf7? (better is 13...Qe5 14.f4 Qd6+/–) 14.Bc4+– b5? (14...Kf8 15.Qb3 Nc6 16.Qb7 Qc8 17.Ba6 Nce7 18.Qc8 Nc8+–) 15.Ba2 Qe5 (15...Ra7 16.g4 Qe5 17.f4+–) 16.f4 Qd6 (16...Qb2 17.Nb6 Ke8+–) 17.Nb6 Ke7 18.Nc8 Kd7 (18...Ke8 19.Qd6 Ra7 20.Qb8 Ne7 21.Na7 Nc8 22.Qc8 Ke7 23.Qc7 Ke8 24.Qf7 Kd8 25.Rd1) 19.Qd6 Kc8 (19...Ke8 20.Rd1 Nd7 21.Qd7 Kf8 22.Qf7) 20.Rc1 Kb7 (20...Nc6 21.Rc6 Kb7 22.Qc7) 21.Rc7 1–0. Janek – Chris, internet, 2016.

    6.Nf3 Bd6 7.d4 (7.c4 Qb6 8.Bc3 dc4 9.Bc4 Bg4 10.d4+=; 7.Nc3 Ne7 8.d4 Nbc6 9.Nb5 Bg4 10.h3+=) 7...e4 8.Nfd2 Qb6 9.Ra2 f5 10.c4 +=.

    6.Nf3 e4 7.Nd4 Nc6 8.Nb3 Bb6 9.c4 Be6 10.cd5 Bd5 11.Nc3 Nge7 12.Nd5 Qd5 13.Rc1 0-0?? 14.Bc4+– (14.Bc4 Rf7 15.Bd5 Nd5 16.Nc5 Bc5 17.Rc5+–) 1–0. Vendelo – Kauen, internet, 2020.

    6.Nf3 e4 7.Nd4 Ne7 8.Nb3 Bb6 (8...Bd6 9.Qh5 g6 10.Qh4+=) 9.c4 (9.Qh5 g6 10.Qh4 Ng8+=) 9...Nbc6 (9...Bf5 10.c5 Bc7 11.Nd4=) 10.cd5 (10.Qh5 Kf8=) 10...Nd5 11.Bc4 0-0 (11...Be6 12.Qc2 f5 13.g4=) 12.0-0 (12.Nc3 Be6 13.Ne4 Qe7+=) 12...Kh8 13.d4 ed3 (13...f5 14.N1d2=) 14.Qd3 Nde7 15.Qd8 (15.Qe2 Ne5=) 15...Rd8= 16.Nc3 (16.N1d2 Na5=) 16...Bf5 (16...Ne5!? 17.Bb5 Be6=+) 17.Na4= Bc7 18.Nac5 (18.Rfc1 Be5=) 18...b6 (18...Be5 19.Be5 Ne5 20.Be6=) 19.Ne6 Rd7 (19...Rdc8 20.Nc7 Rc7 21.Rac1+=) 20.Nc7 Rc7 21.Rac1 Ng6 (21...Ne5 22.Be2 Rcc8 23.Nd4=) 22.Bb5 Nge7 23.Nd4 Bd7 24.Rfd1 (24.Ba6 Bc8 25.Bd3 Bb7+–) 24...a6+= 25.Be2 b5 26.Bf3 (26.Nc6 Bc6 27.e4 Rb7+–) 26...Rac8 27.Nc6 Bc6 (27...Nc6 28.Be4+=) 28.Bg4 f5 29.Bh3 Bd7 (29...Kg8 30.f3+=) 30.Rc7 Rc7 31.Be5 Rb7 32.f4 (better 32.g3 Kg8 33.Rd6+=) 32...Be6? (better 32...Kg8+=) 33.Rd8+– Bg8 34.g3 (better 34.Bd6!? Nc6 35.Rc8+–) 34...Nc6+= 35.Re8 Ne5 36.fe5 The passed pawn on e5 will quickly become a dangerous weapon 36...g6 (36...g5 37.Bf5 Kg7 38.e6+–) 37.Bg2 (37.e6 h5 38.e7 Kh7 39.Rg8 Re7+–) 37...Rd7+– 38.Bc6 Rd1 39.Kf2 Kg7 40.e6 Rd6 41.e7?? (better 41.Rg8 Kg8 42.e7+–) 41...Bf7+= 42.Rc8 Re6? (better 42...Rd2 43.Ke1 Rc2=) 43.e8Q+– Threatening mate: Qf8 (43.e8Q Be8 44.Be8+–) 1–0. BeepBeepImAJeep – cheateralert, IM BeepBeepImAJeep simul, 2017.

    6.c4 d4

    7.Nf3 de3 8.de3 Qd1 9.Kd1 Bg4 10.Be2 Ne7 11.Nc3 Nbc6 12.h3 Bh5 (12...Rd8 13.Ke1 Bf5 14.Rd1+=) 13.g4 (13.Ne4 b6=) 13...Bf7 14.Nd5? (better is 14.Ne4!? 0-0-0 15.Ke1=) 14...Nd5–+ 15.cd5 Bd5 16.Kd2 0-0-0 17.Rhd1?? (better is 17.Ke1–+) 17...Bf3 18.Ke1 Be2 19.Ke2 Rd1 20.Rd1 Rd8 21.Rd8 Kd8 22.Kd3 Kd7 23.f3 Kd6 24.e4 (24.h4 b5–+) 24...Nd4 25.Bd4 Bd4 26.Kc4 Kc6 27.a4 a6 28.Kb3 b5 29.ab5 ab5 30.Kb4 Kb6 31.Kb3 (31.h4 Bc5 32.Kb3 Be3–+) 31...Kc5 32.Kc2 Kc4 33.h4 b4 34.g5 b3 35.Kb1 Kd3 36.gf6 gf6 37.h5 Ke3 (37...Kd2 38.h6 Bc3 39.f4 ef4 40.e5 f3 41.e6 f2 42.e7 f1Q) 38.h6 Kf3 (38...Kd2 39.f4 ef4 40.e5 f3 41.e6 f2 42.e7 f1Q) 39.Kc1–+ Ke4 40.Kb1 (40.Kd2 f5 41.Ke1 b2 42.Kd2 b1Q 43.Ke2 Qc2 44.Ke1 f4 45.Kf1 Qf2) 40...Ke3 (40...Kd3 41.Kc1 e4 42.Kb1 e3 43.Kc1 e2 44.Kb1 e1Q) 41.Kc1 Ke2 (41...f5 42.Kd1 f4 43.Ke1 b2 44.Kf1 Kf3 45.Ke1 Bc3 46.Kd1 b1Q) 42.Kb1 f5 43.Kc1 f4 44.Kb1 f3 45.Kc1 f2 46.Kb1 f1Q 0–1. Fournier,Frederic – M.i.x.e.r (2175), Partie amicale, 1m + 0s, 2007.

    7.Nf3 de3 8.fe3 Be3?? 9.de3+– Qd1 10.Kd1 Nh6 11.h3 (11.Nc3 Be6+–) 11...Bf5 (11...Nf5!?+/–) 12.Nc3 Be6 13.Be2 (13.Bd3!? Na6 14.Ne4 b6+–) 13...Nf5+/– 14.e4 Ng3 15.Rg1 Ne2 16.Ke2 0-0? (better is 16...Bc4!? 17.Ke3 Nc6+/–) 17.Nd5+– Bd5 (17...Nc6 18.Rad1+–) 18.cd5 Nd7 19.Rgc1 Rac8 20.Rc8 Rc8 21.Rc1 Rc1 22.Bc1 Nc5 23.Bb2 (23.Ke3 Kf7+–) 23...Kf8? (better is 23...Ne4 24.Nd2 Nd2 25.Kd2 h5+–) 24.Nd2 Ke7 25.Bc3 Kd7 26.Bb4 Na6 27.g4 Nb4 28.ab4 b6 (28...a6 29.g5! Ke7 30.gf6 gf6 31.Kf3+–) 29.Kd3 a5 (29...Kc7 30.b5+–) 30.ba5 ba5 31.Nc4 a4 32.Kc3 g6 33.Kb4 h5 34.Ka4 hg4 35.hg4 f5 (35...Kc7+–) 36.gf5 g5 (36...gf5 37.ef5 e4+–) 37.Ne5 Kc7 38.Kb5 (38.Kb5 Kd6 39.Nc6 g4 40.f6 Kc7 41.f7 g3 42.f8Q g2 43.Qd8 Kb7 44.Qb8#) 1–0. Fournier,Frederic – NN, jeu.europe–echecs.com, 2013.

    7.Nf3 de3 8.fe3 Ne7 9.Be2 (9.d4 Bb6=) 9...0-0 (9...e4 10.Nd4=) 10.0-0 (10.d4 Bb6 11.0-0 ed4 12.ed4+=) 10...Bf5 (better is 10...e4 11.Nd4 Nbc6=) 11.d4+/– ed4 12.ed4 (12.Bd4?! Nd7=; 12.Nd4?! Qb6 13.Bc3 Bg6=) 12...Bd6 13.d5 (better is 13.c5!? Bf4 14.Qb3 Kh8 A) worse is 15.Qb7 Nbc6 16.Qa6 Be3 17.Kh1 Nd4+= (17...Bd4? 18.Nd4 Nd4 19.Rd1+–); B) 15.Nh4 Bb1 16.Rf4+/–) 13...Nd7 14.Nc3 Kh8 15.Bd3 (15.Nd4 Bg6+=) 15...Bd3 (better is 15...Qb6!? 16.Kh1 Qb2 17.Bf5 Qc3 18.Bd7 Qc4+=) 16.Qd3= Ne5 17.Ne5 Be5 18.Rac1 (18.Rab1 Rc8 19.Ne4 Ng6+=) 18...b6 (better is 18...Qb6!? 19.Rf2 Bd4-/+) 19.Na4 Nc6 20.Rfd1 Bb2 21.Nb2 Ne5 22.Qh3 Qc8 Attacking the backward pawn on c4 23.Qh5 (23.Qc8 Rac8 24.Rd4 Rfd8+=) 23...Rd8 (23...Qc5 24.Kh1 Qa3 25.Rc2-/+) 24.Rd4 (24.Kh1!?=) 24...Qc5+= 25.Qd1?? (25.Rcd1 Nc6 26.Na4 Qa3-/+ (worse is 26...Qd4 27.Rd4 Nd4 28.Qg4+=)) 25...Rac8 (better is 25...Nc6–+) 26.Kh1-/+ Qa3 27.Nd3 Nd3 28.Rd3 Qc5 29.h3 Qf2 30.Rd2 Qg3 31.Rd3 Qg6 32.Qf3 Rc5 33.Rdc3 a5 34.Qe3 Rdc8 35.Qe6 f5 36.Qd7 Qg5 37.Qd6 Qf6 38.Qf6 (38.Qf6 gf6 39.Kg1-/+). Fournier,Frederic – Petarda (1795), Active, 2006.

    7.Nf3 de3 8.fe3 Bg4 9.Be2 Nc6 10.0-0 Nge7 11.Nc3 0-0 12.Rc1 a6 13.h3 Bf3 14.Bf3 Rc8 15.Ne2 (15.Nd5 Nd5 16.Bd5 Kh8+=) 15...f5 16.d4 e4 17.dc5 Qd1 18.Rcd1 ef3 19.Rf3 g6 20.Nd4 (20.Rd7!? Rb8 21.g4+/–) 20...Rfd8 21.Rff1 Kf7 (21...Na5 22.Ne6 Rd1 23.Rd1 Nc4 24.Rd7+=) 22.Nc6 Nc6 23.Bd4 Ke6 24.Rfe1 Rd7 25.g4 fg4 26.hg4 Rcd8 27.Kg2 Ne5 28.Kg3 Nc4 29.a4 Rf8 30.Rf1 Rdf7 (30...Rf1 31.Rf1 Nd2 32.Rc1=) 31.Rf7 Rf7 32.Kg2 Na5 33.Rf1 (better is 33.Kh2!?=) 33...Rf1-/+ 34.Kf1 Nc6 (34...Nb3 35.Ke2-/+) 35.Kf2 (better is 35.Bg7!?+=) 35...Kd5 36.Bb2 Kc5 37.Kf3 Kd5 (37...Kb4!? 38.Kf4–+) 38.Kf4 Ke6 39.Ke4 b5 40.ab5 ab5 41.g5 Kd6 42.Kd3 Kd5 43.e4 Kc5 44.Bf6 b4 45.Kc2 (45.Bb2 Kd6-/+) 45...Kd6 46.Kb3 Ke6 47.Kc4? (better is 47.Bb2-/+) 47...Ne5 48.Kb4 Nd7 (48...h5 49.gh6 Kf6 50.Kc3–+) 49.e5?? (better is 49.Bb2=) 49...Ne5–+ (49...Nf6?! 50.ef6 h5 51.gh6 Kf6 52.Kc5=) 50.Kc3 Nf3 51.Kd3 Kf5 52.Bd8 Ng5 53.Ke3 Ne6 54.Bh4 h5 55.Be7 g5 56.Kf3 h4 57.Kg2 Kg4 0–1. Fournier,Frederic – enano (1675), Active, 2007.

    7.Nf3 Bg4 8.h3 Bh5 9.g4 Bg6 10.Bg2 Nc6 11.0-0 (11.ed4 ed4 12.Qb3 Qb6 13.Qb6 Bb6=) 11...Nge7 (11...Bd3 12.Re1 Qb6 13.Qc1-/+) 12.Qb3 Qb6 13.Qb6 ab6 14.ed4 ed4 15.Re1 0-0 16.Nd4? (better is 16.a4!?=) 16...Nd4-/+ 17.Bb7? (better is 17.Re7 Nc2 18.Rb7 Na1 19.Bd5 Kh8 20.d4–+) 17...Rab8?? (17...Nc2 18.Ba8 Ne1 19.Bb7–+) 18.Bg2?? (18.Re7 Nc2 (18...Be7?! 19.Bd5 Bf7 20.Bd4=) 19.Bd5 Kh8-/+) 18...Bd3?? (better is 18...Nc2!? 19.Re7 Be7 20.Bd5 Kh8 21.Ra2–+) 19.Bd4? (better is 19.Re7 Be7 20.Bd5 Kh8 21.Bd4+=) 19...Bd4–+ 20.Nc3 Bc3 21.dc3 Ng6 22.Bd5 Kh8 23.Re3 Nf4 24.Be4 (24.Rd1!? Bc2 25.Rd4–+) 24...Bc4 25.Rd1 Rfd8 26.Rde1 h5 27.gh5 Nh5 28.Bg6 Nf4 29.Kh2 (29.Be4–+) 29...Ng6 30.Re4 (30.Rg1 Ne5–+) 30...Bf7 31.Rb4 Rdc8 32.Reb1 Rc3 0–1. Fournier,Frederic – bonbon, Active, 2005.

    7.ed4 Bd4

    8.Bd4 ed4 9.d3 Ne7 10.Be2 0-0 11.Nf3 Bg4 12.0-0 Bf3 (12...Re8 13.Nbd2=) 13.Bf3+= Nbc6 14.Nd2 g6 (14...Qa5 15.Re1+=) 15.Qb3 Na5 16.Qa2 Rb8 17.Nb3 (17.Rfe1 Nac6+–) 17...Nb3 (17...Nac6 18.Nc5 Qc8 19.Bd5 Nd5 20.cd5+–) 18.Qb3 a6 (18...Qd7 19.Rab1+=) 19.Rfe1 (19.Bb7 Rf7-/+) 19...b5 (19...Nc6!?+–) 20.cb5+– Kg7 (20...Rf7 21.a4+–) 21.a4 (better 21.Qe6!? Rf7 22.Qa6 Nd5+–) 21...ab5 22.ab5 Nf5 23.Ra7 Kh6 24.Be4 (24.Bc6 Qd6 25.Qd1 Qb4+–) 24...Re8 (24...Nd6 25.Qb2 Rf7 26.Rf7 Nf7 27.Bc6+–) 25.Bf5?? (better 25.Qc4 Re7 26.Re7 Ne7 27.Bc6+–) 25…Re1 0–1. Markzela (1685) – LenokChessnok (1610), lichess.org, 2020.

    8.Bd4 Qd4

    9.Nc3 Nc6 10.Nf3 Qd8 11.Be2 Nge7 12.0-0 0-0 13.Rb1 Nf5 14.Nd5 (14.c5 Qa5=) 14...Nfd4 (14...Re8!?=+) 15.Nd4= Nd4 16.Bf3 (16.f4 Qd6=) 16...Rb8=+ 17.Re1 Bd7 18.Be4 g6 19.f4 (19.g3 b5=+) 19...Bc6 (19...f5!? 20.fe5 fe4 21.Re4 Ne6 22.Nf6 Rf6 23.ef6 Qf6-/+) 20.fe5= fe5 21.Rf1 Qh4 22.d3 Kg7 23.g3 Qg5 24.Kh1 h5 25.Qc1 Rf1 26.Qf1 Rf8 27.Qc1 (27.Qg1!?=+) 27...Qc1-/+ 28.Rc1 Rf2 29.Kg1 (29.Ra1 Nb3 30.Kg1 Rb2-/+) 29...Ra2-+ 30.h3?? (better 30.Rf1-+) 30…Ne2 (30...Ne2 31.Kf2 Nc1 32.Ke1 Nb3-+) 0-1. cipiripi (2375) - pacal56 (2230), Rated Blitz game, lichess.org, 2015.

    9.Nc3 Be6 10.Nf3 Qf4 (10...Qc5 11.Qb3 b6 12.Rd1=) 11.g3 Qg4 (11...Qf5 12.Rb1 Bc8 13.d4 ed4 14.Nd4+/–) 12.h3 (12.Be2 Qf5+/– (12...Bc4? 13.Qa4 Qd7 14.Qd7 Nd7 15.Bc4+–)) 12...Qg6 (12...Qh5 13.Rb1 Qf7 14.Ne4+/–) 13.d4+/– Nc6? (better is 13...Na6!?+/–) 14.d5+– 0-0-0 (14...Nd4 15.Bd3 (15.de6?! Nc2 16.Kd2 0-0-0 17.Nd5 Na1+/–) 15...Nf3 16.Qf3+–) 15.Bd3 (better is 15.Qe2 Bd7 16.dc6 Bc6 17.Nb5 Bf3 18.Qf3+–) 15...Bf5? (15...Qe8+–) 16.Nh4 (16.dc6 Rd3 (worse is 16...Bd3 17.Qa4+/–) 17.Qe2 bc6+=) 16...Qg5 (16...Bd3 17.Ng6 Bg6+–) 17.Nf5 (17.dc6?! Rd3 18.cb7 Kb8=) 17...Nd4 18.h4 Qh6 (18...Qf5 19.Bf5 Nf5+–) 19.Nh6 Nh6 20.c5 Nhf5 21.Qa4 a6 22.c6 Nf3 23.Kd1 Nd6 24.cb7 Nb7 25.Qc6 Kb8 26.Rb1 Rd7 27.Qd7 Rd8 (27...Nh4 28.Qb7) 28.Qb7 1–0. pierre – kvafa, internet, 2010.

    9.Nc3 Ne7 10.Nf3 (10.Nb5 Qd7 11.c5 Nf5 12.Nf3 e4 13.Qa4 0-0 14.Nfd4 Nd4 15.Qd4 Qd4 16.Nd4 Rd8 17.Nb5 Na6=) 10...Qc5 (10...Qb6 A) 11.Bd3 Nbc6 (11...Nd7 12.0-0 Qc6 13.Be2 0-0 14.d4 Nf5 15.Re1 Kh8 16.d5 Qc7 17.Nb5 Qd8+=) 12.Nb5 Qd8 13.Be4 f5 14.Bc2 e4 15.Ng5 a6 16.Nc3 h6 17.Nh3 Ne5-/+; B) 11.Rb1 Qa5 12.Rb3 Nd7 13.Ne4 0-0 14.c5 Kh8 15.Qc1 f5 16.Nd6 Qc5 17.Qc5 Nc5=; C) 11.d4 Bg4 12.Be2 Nbc6 13.d5 Qa5 14.Nd2 Nd4 15.Bg4 Qc3 16.0-0 f5 17.Bf3 Nf3=) 11.d4 (11.Be2 Nf5 (11...0-0 12.d4 Qa5 13.Qd2 ed4 14.Nb5 Qd2 15.Kd2 Nbc6 16.Nbd4 g5 17.h3 Nd4=) 12.Qb1 Nc6 13.Ne4 Qe7 14.c5 Be6 15.Bd3 Rd8 16.g4 Nfd4 17.Nd4 Nd4+=) 11...ed4 (11...Qa5 12.Qd2 Bg4 13.Nb5 Qd2 14.Nd2 Kd7 15.de5 fe5 16.h3 Bh5 17.Ne4 a6+/–) 12.Nd4 (12.Qd4 Qh5= (12...Qa5 13.Qd2 0-0 14.Nd5 Qd8 15.Be2 Re8 16.Rd1 Nbc6 17.0-0 Qd6+=) 13.Nd5 Nbc6 14.Qf6 Qd5 15.Qe7 Ne7 16.cd5 Nd5 17.Bc4 Nb6+=) 12...0-0 13.Ndb5 a6 (13...Nbc6!?= 14.Qd6 Qh5 15.Be2 Bg4 16.f3 Bc8 17.Nd5 Nf5=; 13...Re8 14.Be2 Na6 15.Qd6 Qg5 16.0-0 Nc6 17.Qd5 Be6+=) 14.Qd6+= Nd7 15.Qe6 (15.Ne4 Qd6 (15...Qh5 16.Be2 Qg6 17.Nc7 Qe4+=) 16.Nbd6 f5+= 17.Rd1 fe4=; 15.Qc5 Nc5 16.Nc7 Rb8 17.Rd1 Bf5=) 15...Kh8 (15...Rf7!? 16.Ne4 Qh5+= 17.Ng3 Qh4+=) 16.Ne4+= Qe5 17.Qe5 Ne5 18.Nbd6 Nf5 (18...f5 19.Nc5+=) 19.Rb1 (19.c5 Nd4 20.Rd1 Ne6+/–) 19...Rb8 (19...Rd8 20.c5 Nd6 21.Nd6+/– (worse is 21.cd6 Bf5 22.f3 b5-/+)) 20.c5 Nd6 21.Nd6 (21.cd6 Bf5 22.f3 Nf7-/+) 21...a5 (better is 21...Be6 22.Rb7 Rb7 23.Nb7 Bd5+=) 22.Ba6 (better is 22.Rb6!?+/–) 22...Nd7= 23.Bc4 (worse is 23.Bb7 Nc5 24.Be4 Ne4 25.Nf7 Rf7 26.Rb8 Rc7-/+; 23.Nb7? Nc5! 24.Ke2 Bb7 (24...Na6?! 25.Na5 Bg4 26.f3 Rfe8 27.Kf2–+) 25.Bb7 Nb7–+; 23.Nc8 Rfc8 24.Bb5 Nc5-/+) 23...Ne5 (better is 23...Nc5!? 24.Ke2 b6=) 24.Bd5 (24.Bb5 Be6+/–) 24...Nd3 25.Kd2 Nc5 26.Rhe1 (26.Rhc1 Na6+/–) 26...Bd7 (26...f5 27.Re7+=) 27.Nf7 (27.Rbc1!? b6 28.Nf7 Rf7 29.Bf7+/–) 27...Kg8+= 28.Ne5 (28.Rb7! Nb7 29.Ne5 Kh8 30.Nd7=) 28...Be6+= 29.Be6 Ne6 30.Nd7 (30.Nd3 Nd4+=) 30...Rfd8-/+ 31.Re6 Rd7 32.Ke2 Rc7 (32...b5 33.Rb3-/+) 33.Reb6 (33.Rb5 Kf7 34.Rd6 Rc2 35.Rd2 Rd2 36.Kd2 b6+=) 33...Rc2-/+ 34.Kf1 Rc3 (34...Ra2 35.R1b3-/+) 35.h4 (35.Ra1 a4-/+) 35...Ra3 36.h5 a4 37.Rb7 Rb7 38.Rb7 Rb3 39.Ra7 a3 40.g4 Rb4 (40...h6 41.Ke1-/+) 41.Ra3 (41.Ra8 Kf7-/+) 41...Rg4 42.Ra8 Kf7 43.Ra7 Ke6 44.h6 g5 (44...gh6 45.Rh7 Rh4 46.Kg2-/+) 45.Rh7 Rh4 46.f3 Kf5 47.Rh8 Kg6 48.Kg2 Rh6 49.Rg8 Kh5 50.Kg3 Rh7 51.f4 Rf7 (51...Rd7 52.fg5 fg5 53.Rh8 Kg6 54.Rg8 Kf6 55.Rf8 Kg7 56.Rf5-/+) 52.fg5 (52.f5!? Kh6 53.Rg6 Kh7 54.Kg4=) 52...fg5-/+ 53.Rh8 Kg6 54.Kg4 Rf4 55.Kg3 Kg7 56.Rh5 Kf6 ½–½. De Visser,Arno – De Bode,C, 10th AKN Weekender, Haarlem NED, 2001.

    9.Nc3 Ne7 10.Nf3 Qd8 11.Be2 Nbc6 12.0-0 0-0 13.d3 Be6 14.Qc2 Qd7 15.Rfd1 Rfd8 16.Rd2 Nf5 17.Rad1 b6 18.h3 Qe7 19.Ne4 (better is 19.Qb2!?-/+) 19...Qa3–+ 20.Ng3 Ng3 21.fg3 Qe7 (21...Rd7 22.Kh2–+) 22.Kh2 Rd7 (22...Nd4!? 23.Qb1–+) 23.d4 ed4 24.Nd4 Nd4 25.Rd4 Rd4 26.Rd4 Rc8 27.Bd3 g6 28.Rf4 Qg7 29.Qf2 1–0. Fournier,Frederic – Guest3966149, Partie amicale, 1m + 0s, 2008.

    9.Nc3 Ne7 10.Nf3 Qd8 11.Be2 Nbc6 12.0-0 Bf5 13.Qb3 Qc7 14.d3 0-0 15.Rfd1 (15.c5 Kh8+=) 15...Be6 16.Rab1 b6 17.Nb5 Qd7 18.Qb4?? (18.d4 e4 19.d5 ef3 20.Bf3 Bd5 21.cd5 Na5+/–) 18...a5 (better is 18...Nb4 19.Rb4 Nc6–+) 19.Qd6= Qd6 20.Nd6 Rab8 21.Nb5 Nf5 22.Bf1 Ncd4 (better is 22...Rfd8!?=) 23.Nbd4+= Nd4 24.Nd4 ed4 25.Re1 Bf5 26.Rb5 Rfe8?? (26...Bd7 27.Rd5 Rfe8 28.Rb1+/–) 27.Reb1 (better is 27.Re8 Re8 28.Rf5+–) 27...Bg6 28.g3 (28.Rb6 Rb6 29.Rb6 Re1 30.Rb8 Kf7–+) 28...Re6 29.Kg2 Kf7 30.c5 Re5 31.cb6 Rb5 32.Rb5 Rb7 33.Ra5 (33.Kf3!? Kf8+–) 33...Rb6+/– 34.Ra7 Ke6 35.a4 Rb3 36.Rg7 Bd3 (36...Ra3!?+/–) 37.Bd3+– Rd3 38.Rh7 Ra3 39.Rh4 (39.Ra7 d3 40.Kf3 d2 41.Ke2+–) 39...d3? (better is 39...Ra4!? 40.Kf3 Ke5+=) 40.Rd4 (40.Kf3!? d2 41.Ke2 Rd3+–) 40...Ke5 41.Rd8 Ra4 (41...Ke4 42.Re8 Kd4+=) 42.Rd3+– f5 43.Re3 Kf6 44.h4 Kg6 45.Kh3 Ra2 46.f4 Ra1 47.Re6 Kf7 48.Re5 Rh1? (48...Kf6+–) 49.Kg2 Rb1 50.Rf5 Kg6 51.Rg5 Kh6 52.f5 Rb3 53.f6 Rb7 54.Rf5 Kg6 (54...Rf7 55.g4+–) 55.f7! Rf7 (55...Rf7 56.Rf7 Combination) 56.Rf7 Kf7 57.Kf3 Kf6 58.g4 Kg6 59.Kf4 Kh6 60.Kf5 1–0. Fournier,Frederic (1855) – arzobispo1 (1630), Active, 2011.

    6.d4 Qb6

    7.Ra2 ed4 8.ed4 Qe6 9.Qe2 Bb6+= 10.c4 Ne7 11.Qe6 Be6 12.c5 Bc7 13.Bd3 Nbc6 14.Bc3 (14.Nf3 Bf5 15.Kd2 g5+=) 14...Bf5-/+ 15.Bf5 Nf5 16.Nf3 0-0 (16...h5 17.h4-/+) 17.g4+= Nh6 18.h3 f5 (18...Rfe8!? 19.Re2 Nf7+=) 19.g5= Nf7 20.Bd2 b6 21.Rc2 Rfe8 22.Kd1 Ne7 (22...Rab8 23.cb6 Rb6 24.Nc3+=) 23.Nc3+= Rac8 24.Re1 bc5 25.dc5 Rb8 26.a4 a6 27.Re6 Ra8 28.Nd4 Be5 29.Nce2 Bc7 30.a5 (30.Rb2 Nd8 31.Re3 Kf7+=) 30...Nd8 (30...Ne5 31.Bf4 N7g6 32.Re8 Re8 33.Nf5 Ba5 34.c6+=) 31.Rb6 (31.Rd6 Ra7 32.Rd7 Ndc6+/–) 31...Bb6+= 32.ab6 Rc8 33.Ng3 (33.Bf4!?+=) 33...g6= 34.Nge2 Nec6 35.Nc6 Nc6 (worse is 35...Rc6 36.Nd4 Rc8 37.c6+–) 36.Bf4 Re7 37.Bd6 Rd7 38.Nf4 d4 39.Nd5 Kf7 40.Nc7 a5 41.Re2 Rb8 42.Nb5 Re8 ½–½. Smith,Graham – Hanison,Bernard, b2–b4.com, 2004.

    7.Ra2 ed4 8.ed4 Qe6 9.Be2 Bd6 10.Nd2 Ne7 11.Ngf3 0-0 12.0-0 b6 (12...Ng6 13.g3=) 13.Re1 Qf7 14.c4 (14.Ra1 Re8=) 14...Ba6 (14...Be6 15.Qc2=) 15.Qa4 (15.Qc2 Rc8=) 15...dc4 (15...Rc8 16.Rc1=) 16.Bc4+= Opening the c–file gets Black a lot of play 16...Bc4 17.Qc4 Qd5 (17...Rd8 18.Qf7 Kf7 19.Bc1+=) 18.a4 (18.Re6 Rd8+=) 18...Rc8= 19.Qd5 Nd5 20.Ne4 (20.Ba3 Ba3 21.Ra3 Nd7=) 20...Bf8 (20...Bb4 21.Re2=) 21.Ba3 (21.Bc1 Na6=) 21...Nc6 (21...Ba3 22.Ra3 Nd7 23.Ra2=) 22.Bf8 Kf8 23.Kf1 (23.Rae2 Ncb4=) 23...Ncb4 24.Rd2 Rc6 25.Ra1 (25.Nh4 g6=) 25...Rac8 26.Ne1 (26.Re1 Re8+=) 26...Rc1 27.Rd1 Rd1 (27...Ra1 28.Ra1 Rc4 29.Nd6 Rd4 30.Nb5-/+) 28.Rd1+= Nc2 (28...Ke7 29.Nd2+=) 29.Nd6= Rc6 30.Nf5 (30.Nc2!? Rd6 31.Ne3=) 30...g6 31.Ng3 (31.Nc2 Rc2 32.Ne3 Ne3 33.fe3 Ra2-/+) 31...Ne1-/+ 32.Ke1 Rc4 33.a5 ba5 34.Ne2 Rc2 (34...a4 35.Kd2-/+) 35.Ra1 (35.Rd2 Rd2 36.Kd2 a4+=) 35...a4-/+ 36.Kd1 (36.Ra3 Ke7-/+) 36...Rb2 37.g3 (37.Ra3 h6-/+) 37...Ke8 38.h4 h5 39.Ra3 Kd8 (39...a5 40.Ke1-/+) 40.f3 Kc7 (40...g5 41.f4 gh4 42.gh4 Rb1 43.Kd2–+) 41.Ra4+= Kb6 42.Ra3 a5 43.Nc3 Nc3 44.Rc3 Rb4 45.Rd3 Kc6 46.Kd2 Kd5 47.Ke3 a4 48.Rd1? (better is 48.f4!?-/+) 48...a3–+ 49.Ra1 Ra4 (better is 49...Rb3!? 50.Kf4–+) 50.Ra2 (50.Kd3 a2 (50...Rd4?! 51.Kc3-/+) 51.Kc3 Ra3 52.Kb4 Rf3 53.Ra2 Rg3–+ (53...Kd4?! 54.Rg2–+)) 50...Kc4–+ (50...Kc4 51.Ra1 a2–+) 0–1. Bulcourf,Carlos (2215) – Asensio,Enrique (2215), Buenos Aires FMDA–chT, 1996.

    7.Ra2 Bd6 8.c4 dc4 9.Bc4 Bf5 10.Nf3 Ne7 11.de5+= fe5 12.0-0 Nd7 13.Nh4 Bg6 14.Ng6+/– hg6 15.Nd2 0-0-0 16.Ne4+– Bc7 17.Qc2 Nf6 18.Ng5+– e4 19.g3 Rh5 20.Ne4 Rdh8 21.h4 Qc6 22.Bd3 Qc2 23.Bc2 Ne4 24.Be4 Nf5 25.Rb1 Rd8 26.Ba1 b6 27.Rc2 Kb8 28.Rbc1 (28.Rbc1 Bd6 29.Bb2+–) 1–0. chem1st – kofti, ChessWorld.net, 2005.

    7.Bc3 Bd6 8.de5 fe5 9.Be5 Nd7?? (better is 9...Be5 10.Qh5 Qg6 11.Qe5 Ne7+=) 10.Bg7+– Be5 11.Qh5 Qg6 12.Qg6 (12.Be5?! Qh5 13.Bh8 Ngf6+/–) 12...hg6 13.Bh8 Bh8 14.Ra2 1–0. woschkat (2155) – paulze (2100), net–chess.com, 2001.

    7.Bc3 ed4

    8.ed4 Bd6 9.Qh5 g6 10.Qd5 Ne7 11.Bc4?? (better is 11.Qf3 Nf5 12.Bd3+/–) 11...Nd5–+ 12.Bd5 Bf5 13.Nf3 Qb5 14.Bb3 Kd7 15.a4 Re8 (better is 15...Qa6 16.Bd2 Re8 17.Be3 Bf4–+) 16.Ne5 Re5 (16...Be5?! 17.ab5 Bd4 18.Kf1=; 16...fe5?! 17.ab5 ed4 18.Kf1 dc3 19.Nc3–+) 17.de5 Qc6 18.ed6 Qg2 (18...Kd6?! 19.0-0+=; 18...Qd6?! 19.0-0+=) 19.Rf1 Bh3 (19...Kd6?! 20.Nd2–+) 20.Nd2 Qh2 (20...Kd6?! 21.0-0-0 Kc6 22.Rfe1–+) 21.Bd5 Bf1 22.Nf1 Qd6 (22...Qh3 23.Ng3 Nc6–+ (23...Kd6 24.Bb7 Nc6 25.0-0-0 Kc7 26.Ba8+/–)) 23.Bb7 Qc7 24.0-0-0 Ke8 25.Re1 Kf7 26.Bd5 Kg7 27.Re3 Nc6 28.Re6 Nb4 29.Bb4 Qf4 30.Ne3 Qb4 31.Ba8 Qa4 32.Nd5 Qa1 33.Kd2 Qd4 34.Ke1 f5 35.c3 Qc5 36.Rc6 Qa5 37.Rc7 Kh6 38.f4 Qa1 39.Ke2 Qb2 40.Kd3 Qb5 41.Kd4 a5 42.Bc6 Qe2 43.Re7 Qd2 44.Ke5 Qe2 ½–½. nordlicht (1950) – luca23 (1880), gameknot.com, 2012.

    8.ed4 Qe6

    9.Qe2 Bd6 10.Bb4 Bb4 11.ab4 Nc6 12.Qe6 Be6 =.

    9.Be2 Bd6

    10.Bb4=.

    10.Nd2 Nc6 11.Ngf3=.

    10.Nd2 Ne7 11.Ngf3 Ng6 12.0-0 0-0 13.Re1 Nf4 14.g3 (14.Nf1 Nc6=) 14...Qg4 (14...Nh3 15.Kg2=) 15.Bb5 (15.Bb4 Bb4 16.ab4 Nc6=) 15...Bd7 (15...Bf5 16.Re3=) 16.Bd7 Nd7 17.Bb4 Bb4 18.ab4 Rfe8 19.Re8 Re8 20.Ra7 Re2 21.Ra8 (21.Qf1 Nh3 22.Kh1 Qe6 23.Rb7 Nf2 24.Kg2 Ng4 25.Kh1 Nh2 26.Nh2 Rd2–+) 21...Nf8+= 22.Qf1 Nh3 23.Kh1 Nf2 24.Kg1 Qe6 25.Ra3 (25.Ra1 Nh3 26.Kh1 g5-/+) 25...Ng4 (25...g5 26.c4 Nh3 27.Kh1–+) 26.h3 Nf2 27.h4 (better is 27.g4!? b5 28.Qf2 Rf2 29.Kf2-/+) 27...Nh3–+ 28.Kh1 Rf2 29.Qb5 Nf4!! 30.Ng1 (30.gf4 Qh3 Mate attack) 30...Rd2 31.gf4 Qe4 (31...Rd4?! 32.Qb7 Rf4 33.Kg2–+) 32.Nf3 Rf2 33.Qd3 (33.Kg1 Rf3 34.Rf3 Qf3–+) 33...Qf3 (better is 33...Qf4 34.Qd1 Qg4–+) 34.Qf3+– (34.Qf3 Rf3 35.Rf3+–) 1–0. marekt – slavi, GameColony.com, 2002.

    10.Nf3 Nc6 11.0-0 Nge7 12.Re1 0-0 13.Bb2 Qf7 14.Nbd2 Be6 15.Rc1 Na5 (15...Rfe8 16.c4=) 16.g3 (16.c4 dc4 17.Qa4 b6=) 16...Rac8 17.c3 Bd7 18.Nh4 (18.Qc2 b5+=) 18...Rc7 (18...Rfe8 19.Ng2+=) 19.f4 (19.Bh5 g6 20.Be2 Nc8+=) 19...Rfc8 (19...Re8 20.Bh5 g6 21.Bf3+=) 20.Bf3 Nc4 Exerts pressure on the isolated pawn (20...Re8 21.Ng2+=) 21.Nc4 Rc4 22.Qd3 (22.Ng2 Ba4 23.Qe2 Bb3=) 22...Ra4 23.Ra1 g6 (23...Re8 24.Ng2=) 24.Re3 (24.Ng2 Ra6=) 24...Ra5 (24...g5 25.Ng2+=) 25.Qd2 Nf5?? (better is 25...b6=) 26.Nf5+– Bf5 27.c4! b6 (27...Rc4 28.Qa5 Discovered attack; 27...dc4 28.Qa5 Discovered attack) 28.Qa5! (28.Bd5? Rd5 29.cd5 Rc2–+) 28...ba5 29.Bd5 Qd5 (29...Rc4 30.Re8 Kg7 31.Bf7 Kf7 32.Rh8+–) 30.cd5 Rc2 (30...Rb8 31.Re2 Bg4+–) 31.Bc3 Bc7 (31...Be4 32.Re4 (32.Ba5?! Rg2 33.Kf1 Rh2+–) 32...Rc3 33.Re6+–) 32.Rd1 (32.Rae1 Bb6+–) 32...Bh3 (32...g5 33.fg5 fg5 34.Rb1+–) 33.d6! Bd6 34.Ba5 Rg2 35.Kh1 Ra2 (35...Rb2 36.Rde1+–) 36.Bb4 Bc7 (36...Bb4 37.ab4 a6+–) 37.Re8 (37.Re8 Kg7 38.Re7 Kh6 39.Rc7+–) 1–0. Gapp,Wolfgang (1820) – Heilinger,Dietmar (2055), AUT–chT2W, 1995.

    10.Nf3 Nc6 11.Bd2 Nge7 12.Nc3 0-0 (12...Nf5 13.Nb5=) 13.0-0= Qf7 (13...Re8 14.Nb5=) 14.Re1 (14.Nb5 Bb8=) 14...Re8 (14...a6 15.a4=) 15.Nb5 Bb8 16.Rb1 (16.Bb4 Nf5=) 16...Be6 (16...a6 17.Nc3+=) 17.Bf1 (17.Nc3 Nf5 18.Nb5 a6-/+) 17...a6+= 18.Nc3 Nf5 19.Ne2 b5 20.Bf4 Bd6 21.a4 ba4 22.g4 (22.Ra1 Bb4 23.c3 Bd6=) 22...Qg6 23.h3 h5 (23...Be7!?+=) 24.Bd6= Nd6 25.Nf4 Qf7 26.gh5 Qd7 (26...Nb5 A) worse is 27.Ne6 A1) 27...Re6?! 28.Re6 Qe6 29.c4= (worse is 29.Bb5 ab5 30.Rb5 Qh3-/+); A2) 27...Nc3 28.Qd3 Nb1-/+; B) worse is 27.Re6 Re6 28.Bb5 ab5 29.Ne6 Qe6+=; C) 27.Rc1 Na5 28.Bd3+=) 27.Re6 (27.Ra1 Nc4+=) 27...Re6= 28.Nd5 (28.Ne6 Qe6 29.Rb6 Nc8=) 28...Rd8 29.c4 (29.Nb6 Qf7-/+) 29...Ne4 (29...a3 30.Ra1+=) 30.Qd3 (30.Ra1 Ne7 31.Nf4 Rc6=) 30...a5 (30...f5 31.Qa3+=) 31.Bg2= Qf7 (31...Qd6 32.Nh4 Rde8 33.Nf5=) 32.Qa3 Qa7 (worse is 32...Qh5 33.Nf4 Qf5 34.Ne6 Qe6 35.d5+/–) 33.Rd1 Nb4 34.Ne3 Rde8 (34...Qf7 35.h6=) 35.Nf5 (35.c5 Qd7 36.d5 R6e7=) 35...Qd7+= 36.d5 (36.h6 Nf2 37.Rf1 g6+=) 36...Nf2 37.Rf1 (37.Kf2 Re2 (37...Qa7)) 37...Rb6 (37...Re2 38.N3d4 Nc2 39.Qd6 Qd6 40.Nd6 Nd4 41.Ne8 Re8 42.Kf2 Re2 43.Kg3=) 38.N3d4 Nfd3 39.Rf3 Re5 (39...Re1 40.Kh2 Qc7 41.Rg3 Kh8-/+) 40.Kh2 (40.Rd3 Nd3 41.Qd3 Re1 42.Kf2+=) 40...Nc5 (40...Ne1 41.Rf1 Nbd3 42.h6-/+) 41.h4 (41.Rf4 Kh8-/+) 41...Ne4 (41...Nb3!? 42.h6 g6 43.Nb3 ab3 (43...gf5?! 44.Nc5 Qc7 45.Rf4=) 44.Qa5 b2–+) 42.Rf4-/+ Qc7 43.Ng7 (43.Re4 Rf5 44.Qg3 Qg3 45.Kg3 Rh5-/+) 43...Nc2 (better is 43...Kh8!? 44.h6 Qc4 45.Be4 Qd4–+) 44.Nc2= Rb3 45.Qc1 (45.Qa4 Re7 46.Ne6 Re6 47.Qb3 Qf4 48.Kg1 Qf2 49.Kh1 Rb6–+) 45...Qg7-/+ (45...Qg7 46.Qe1 Rb2-/+) 0–1. pierre – dirklanger, internet, 2006.

    10.Nf3 Ne7 11.0-0 Nbc6 12.Re1 0-0 13.Nbd2 Qf7 14.Bb2 Be6 =. Woschkat,Karl_Heinz – Festner,Konrad, remoteschach.de, 2003.

    6.d4 ed4

    7.Bb5 Nc6 8.Bd4 Qa5 9.Nc3 Nge7 10.Nge2 =.

    7.ed4 Qe7 8.Ne2 Bb6 9.Nd2 Nh6 10.c4 0-0 11.cd5 Re8 12.Rc1 Na6 13.Nc4 Bc7 14.Qb3 Qf7 15.Ne3 Nf5 16.Ng3 Bd6? 17.Rc8! +–.

    7.Bd4 Bd4 8.Bb5 Nc6 9.Bc6 bc6 10.ed4 Rb8 =.

    7.Bd4 Bd4 8.Bb5 Bd7 9.Bd7 Qd7 10.ed4 =.

    7.Bd4 Bd4 8.ed4 Ne7 9.Bd3 Bf5 10.Ne2 Nbc6 11.0-0 0-0 12.c3 Re8 13.Ng3 Bd3 14.Qd3 Rc8 15.Re1 Ng6 16.Nd2 Qd7 17.Qb5 Re1 18.Re1 Nf8 19.a4 b6 20.Re3 g6 21.Ne2 Kf7 22.Nf4 Exerts pressure on the isolated pawn 22...Ne7 23.Qb3 g5 24.Nh5 Rc6 25.Ne4 (25.Ng3 Ne6+=) 25...Re6= 26.Neg3 Re3 27.fe3 Qe6 28.e4 de4 29.Qe6 Ke6 (29...Ne6!? 30.Ne4 f5 31.Nd6 Kg6=) 30.Ne4+= Nd7 31.Kf2 (31.g4 Kf7+=) 31...h6 32.c4 (better is 32.g4!? f5 33.gf5 Nf5 34.Nhg3=) 32...Nf5-/+ 33.d5 Ke5 34.Nc3 (34.Nd2!?-/+) 34...Kd4 35.Nb5 Kc4 36.Na7 Nd6 37.Nc6 Kd5 38.Ne7 (38.Nb4 Kc5 39.Nc2 Ne4 40.Ke2 Nc3 41.Kd2 Na4–+) 38...Ke6 39.Nc6 Nc5 40.a5 (40.Ke3 Na4 41.Nd4 Kf7–+) 40...Kd7 41.Nb8 (41.Nd4 Nce4 42.Ke3 ba5–+) 41...Kc7 42.ab6 Kb8 43.Nf6 Kb7 (43...Nde4 44.Ne4 Ne4 45.Ke3–+) 44.Kf3 Ne6 45.Kg4 Nf7 (45...Kb6 46.Ng8–+) 46.Ng8 Kb6 47.g3 (47.Kf5 Nf4–+) 47...Kc7 48.Kh5 Kd7 (48...Kd6!? 49.h4 gh4 50.gh4–+) 49.Nh6-/+ Nh6 (better is 49...Ne5-/+) 50.Kh6= ½–½. Gimeno Higueras,Roberto (1970) – Ungureanu,Sandu, Open Bali B Benidorm ESP, 2003.

    7.Bd4 Bd4 8.Qd4 Nc6 9.Qc5 (9.Qd2 d4=) 9...Qa5 (9...Nge7 10.Bd3=) 10.Qa5+= Na5 11.Nc3 Ne7 12.0-0-0 Attacking the isolated pawn on d5 12...Be6 13.Nge2 Bf7 14.h4 (14.Nd4 a6+=) 14...Nc4 15.Nb5 0-0 (15...Kd7 16.Nf4 Rhc8 17.g3=) 16.Ned4 (16.Nf4 Rfd8+=) 16...a6 (16...Bh5 17.f3 Bf7 18.Bc4 dc4 19.Nd6+=) 17.Bc4 dc4 18.Nc7 Rac8 (18...Ra7 19.Nde6 Be6 20.Ne6+=) 19.Nde6+/– Be6 20.Ne6 Rfe8 21.Rd7 Kf7 1–0. Luzuriaga,Norberto Horacio – Angermann,Immo, corr E2000, 2000.

    7.Bd4 Bd4 8.Qd4 Nc6 9.Qd2 Nge7 10.Nf3 0-0 11.Be2 Bg4 12.0-0 Kh8 13.Rd1 Qc7 14.Nd4 Be2 15.Ne2 Rac8 16.c3 Ne5 17.Qc2 Rfd8 18.Rd4 g6 19.Nf4 The isolani on d5 becomes a target 19...Qb6 20.Qd1 Rd7 21.Nd3 (21.Nd5? Nd5 22.Ra2 Nc3 23.Nc3 Rc3 24.Rd7 Nd7–+) 21...Qe6 22.Ra2 Nf5 (better is 22...Qf7!?=) 23.Nf4+/– Qf7 24.Rd5 Rd5 25.Qd5 Qd5 26.Nd5 Rd8 27.e4 Ne7 (27...Nd6!? 28.f3 f5+=) 28.Rd2+/– Nc4 29.Rd4 Nd5 30.ed5 (30.Rc4? Nf4 31.Rd4 Ne2 32.Kf1 Nd4 33.cd4 Rd4–+) 30...b5 31.a4! a6 (31...ba4 32.Rc4 Deflection) 32.ab5 ab5 33.Kf1 Kg7 34.Ke2 Kf7 35.Kd3 (35.Nd2 Nb6 36.d6 Rd7+/–) 35...Rd7 (35...Nb6 36.Na3 Rd5 37.Rd5 Nd5 38.Nb5 Nf4 39.Ke4 Ng2 40.c4+=) 36.Rc4 (36.Nd2 Nb6 37.d6+=) 36...bc4= 37.Kc4 Rb7 38.Nd2 Rb2 39.Kd3 Ke7 40.c4 f5 41.c5 Ra2 42.f4 (42.Nc4 Kd7 43.Ne5 Kc8+/–) 42...Ra3 43.Kd4 Ra2 44.Nc4 White intends d6 44...Rg2 45.c6 Re2?? (45...Kd8 46.d6 Rc2 47.c7 Kd7 48.Kd5+–) 46.Kc5 (46.d6 Ke6 47.c7 Re4 48.Kc5 Rc4 49.Kc4+–) 46...Rc2 47.d6 Ke6 48.c7 Kd7 49.Kd5 Kc8 50.Na3 Rc1 51.Nb5 Kd7 (51...Ra1 52.Ke6 Re1 53.Kf7+–) 52.Na7 h6 (52...Rc2+–) 53.c8Q Rc8 54.Nc8 Kc8 55.Ke6 Kd8 56.Kf6 (56.h4 Ke8 57.d7 Kd8 58.Kd6 h5 59.Kc6 Ke7 60.Kc7 g5 61.d8Q Kf7 62.hg5 Kg7 63.Qf6 Kg8 64.g6 h4 65.Qf7 Kh8 66.Qf8) 56...g5 57.Kf5 (better is 57.fg5 hg5 58.Kg5+–) 57...Kd7 (57...gf4 58.Kf4 Kd7+–) 58.fg5 hg5 59.Kg5 Kd6 60.Kg6 Ke7 61.Kg7 (61.Kg7 Ke6 62.h4+–) 1–0. Miljanovic,Zeljko (1915) – Licardo,Renato (2175), Porec CC–ch, 2009.

    7.ed4 Qb6

    8.Ra2 Bd6 9.c4 Qc6 10.Qh5 Kd8 11.c5 Bc7 12.Bd3 Ne7 13.Ne2 g6 14.Qf3 +=.

    8.Ra2 Bd6 9.c4 Be7 10.cd5 Qa5 11.Nc3 Nd7 12.Nf3 Nb6 (better is 12...Nh6!?+/–) 13.Nd2+– Nd5?? (better is 13...Nd7+–) 14.Qh5 g6 15.Qd5 Qd5 16.Nd5 Be6 17.Nc7 Kd7 18.Na8 (better is 18.Ne6 Ke6 19.Bc4 Kd7+–) 18...Ba2 19.h4 Nh6 20.h5 gh5 21.Bb5 Kd6 (21...Kc8 22.Ne4 Ng8 23.Rh5+–) 22.Ne4 Kd5 23.Nc3 Kd6 24.Bc1 Bf7 (24...Ra8 25.Bf4 Ke6 26.Na2 Nf7 27.Rh5 Ng5+–) 25.Bf4 Ke6 26.Nc7 Kf5 27.Bd3 Kg4 (27...Kf4 28.g3 Kg5 29.f4 Kg4 30.Kf2 Ba3 31.Rh4) 28.Ne2 h4 (28...Bd5 29.Nd5 h4 30.Ne3 Kh5 31.Ng3) 29.f3 Kh5 30.Ng3 1–0. Fournier,Frederic (2290) – Gotham (1645), Active, 2007.

    8.Ra2 Qe6 9.Be2 Bd6 10.Nf3 Ne7 11.0-0 0-0 12.c4 dc4 13.Nbd2 (13.Nc3!? Qf7 14.d5=) 13...b5-/+ 14.Re1 Qf7 15.Ne4 Rd8 16.Nd6 Rd6 17.Ra1 Bb7 18.Bc3 Nd5 19.Bd2 Nc6 Black plans b4 20.Qb1 a6 21.a4 c3 22.Bc1 b4 23.Bd3 Qh5 24.a5 Rad8 25.Bc4 Kh8 26.h3 Bc8 27.Be2 Re6 28.Ne5 Qe8 29.Nc6 Qc6 (29...Re2?! 30.Re2 Qc6 31.Re1+=) 30.Qb3 Rde8 31.Ra2 Bb7 32.f3 Qd6 33.Kf2 (33.Kf1 Ne3 34.Be3 Re3–+) 33...Ne7 34.Qd1 (34.Rd1 Nf5 35.f4 Nd4 36.Qc4–+) 34...Nf5 (34...Nf5 35.Kg1 Bf3–+) 0–1. Leon Ayllon,F – Gonzalez Barcina,F_J (2035), VI Campeonato de Espana por Equipos, 2d, 2005.

    8.Ra2 Qe6 9.Be2 Bd6 10.Nf3 Ne7 11.0-0 0-0 12.Re1 Qf7 13.Nbd2 Be6 14.Bd3 =.

    8.Bc3 Qe6 9.Be2 Bd6 10.Bb4 Nc6 11.Bd6 Qd6 12.Bh5 Kd8 13.Ne2 f5 14.0-0 =.

    8.Qh5 g6 9.Qe2 Be7 10.Qb5 Qb5 11.Bb5 Bd7 12.Bd3 Nc6 13.Ne2 Bd6 14.c4 =.

    7.ed4 Bb6

    8.Bb5 Nc6 9.Ne2 Nge7 10.0-0 0-0 11.Re1 Re8 12.Bd3 Bf5 13.c4 Bd3 14.Qd3 =.

    8.Bb5 Nc6 9.Nf3 Qe7 10.Be2 Nh6 11.0-0 0-0 12.c4 Be6 13.Re1 Qd7 14.Nc3 Ne7 (14...dc4 15.d5 Ng4 16.Rf1+/–) 15.Qa4 Qa4 16.Na4 Ba5 17.Bc3 Bc3 18.Nc3 Kf7 (18...Rfc8!?+/–) 19.cd5 Nd5 20.Bc4 Nf4 21.Re6! Ne6 22.Re1 Rfe8 23.Nb5 Nf5? (23...Re7+–) 24.Nc7 Nfd4 (24...Nd6 25.Be6 Re6 26.Ne6 Nb5+–) 25.Nd4 Rad8 (25...Red8 26.Nde6 Rdc8 27.Nf4 Kf8 28.Nce6 Ke7 29.Ng7 Kd6 30.Nf5 Kc5 31.Rc1+–) 26.Nde6 (26.Nde6 Re6 27.Ne6+–; 26.Re6?! Rd4 27.Re1 Rc4 28.Ne8 Rd4+–) 1–0. b4_player (2175) – ceskysachista (2100), GameColony.com, 2002.

    8.Bb5 Kf7 9.Nf3 Ba5 10.Bc3 Qb6 11.a4 a6 12.Be2 Bc3 13.Nc3 Ne7 14.0-0 +=.

    8.c4 Ba5 9.Bc3 Be6 10.Qa4 Nc6 11.cd5 Qd5 12.Ba5 Qa5 13.Qa5 Na5 14.Bb5 =.

    8.c4 Nc6 9.c5 Ba5 10.Nd2 Qe7 11.Be2 Rb8 12.Qb3 Qf7 13.Bc3 Bc7 14.Ngf3 =.

    8.c4 Qe7 9.Qe2 Be6 10.c5 Bc7 11.Nc3 Nh6 12.Qh5 Nf7 13.Bb5 Nc6 14.Nge2 +=.

    8.c4 Ne7 9.Nf3 0-0 10.Bd3 Ba5 11.Nc3 Bg4 12.0-0 Nbc6 13.Nd5 Nd5 14.cd5 +=.

    8.c4 Bf5 9.Nf3 Nc6 10.Nbd2 Nge7 11.Be2 0-0 12.0-0 Rc8 13.Re1 Re8 14.Rc1 =.

    8.Nd2 Ba5 9.Ngf3 Ne7 10.Be2 0-0 11.0-0 Nbc6 12.c4 Bg4 13.Rc1 Re8 14.Nb3 =.

    8.Nd2 Nc6 9.Bb5 a6 10.Bc6 bc6 11.Ne2 Ne7 12.0-0 0-0 13.Re1 Re8 14.Bc1 =.

    8.Nd2 Bc7 9.Bd3 Ne7 10.Ngf3 0-0 11.0-0 Bf5 12.Nb3 Re8 13.Re1 Nbc6 14.Nc5 =.

    8.Nd2 Qe7 9.Be2 Nc6 10.Ngf3 g5 11.Nb3 Bc7 12.0-0 Qd6 13.g3 Nge7 14.Re1 +=.

    8.Nd2 Ne7 9.Qh5 g6 10.Bb5 Nbc6 11.Qf3 0-0 12.Ne2 a6 13.Ba4 Ba5 14.Bb3 =.

    8.Nd2 Bf5 9.c4 Ne7 10.c5 Bc7 11.Bb5 Nbc6 12.Ngf3 0-0 13.0-0 Bf4 14.Re1 =.

    8.Bd3 Ba5 9.Bc3 Ne7 10.Ne2 Nbc6 11.0-0 0-0 12.Ba5 Qa5 13.c4 Be6 14.Nd2 =.

    8.Bd3 Ne7 9.Nf3 Nbc6 10.0-0 Bg4 11.h3 Bh5 12.c3 0-0 13.Nbd2 Bg6 14.Bg6 =.

    8.Be2 Nc6 9.Nf3 Nge7 10.0-0 0-0 11.Re1 Nf5 12.Ra2 Qd6 13.c4 dc4 14.Bc4 +=.

    8.Be2 Qc7 9.Nd2 Ba5 10.Rc1 Bc3 11.Bc3 Qc3 12.Bb5 Kd8 13.Ngf3 Nc6 14.0-0 =.

    8.Be2 Qd6 9.Nf3 Ne7 10.c4 dc4 11.Nbd2 c3 12.Bc3 Nd5 13.Nc4 Qc6 14.Bb4 +=.

    8.Be2 Qd7 9.Nf3 Ba5 10.Nbd2 Ne7 11.0-0 0-0 12.c4 Ng6 13.Nb3 Bc7 14.Nc5 +=.

    8.Be2 Nd7 9.Nf3 Ba5 10.Nbd2 Ne7 11.0-0 0-0 12.c4 Ng6 13.cd5 Nf4 14.d6 +=.

    8.Be2 Be6 9.Nf3 Ne7 10.0-0 0-0 11.Nc3 Bg4 12.h3 Bf5 13.Na4 Bc7 14.Re1 =.

    8.Be2 Ne7 9.Nf3 Nbc6 10.0-0 0-0 11.Re1 Be6 12.Nbd2 Re8 13.c4 dc4 14.Bc4 =.

    8.Be2 f5 9.Nf3 Nf6 10.0-0 0-0 11.c4 Nc6 12.Re1 Re8 13.cd5 Ne7 14.Nc3 +=.

    8.Be2 Bf5 9.Nd2 Nd7 10.c4 Rc8 11.Rc1 Ba5 12.Ngf3 dc4 13.Rc4 Rc4 14.Bc4 +=.

    8.Be2 Nh6 9.Nf3 Nc6 10.0-0 Nf5 11.Qd3 Nd6 12.Re1 0-0 13.Nbd2 Bf5 14.Qb3 =.

    8.Qf3 Nc6 9.c3 Nge7 10.Bd3 0-0 11.Nh3 Bc7 12.Bc1 Ng6 13.Bg6 hg6 14.Nf4 =+.

    8.Qf3 Ne7 9.Bd3 Nbc6 10.Ne2 Qd7 11.Nd2 Qg4 12.Rc1 Qf3 13.Nf3 Bg4 14.c4 =.

    8.Nf3 Ba5 9.Nbd2 Nc6 10.Be2 Nge7 11.0-0 0-0 12.c4 Bg4 13.Rc1 Re8 14.Nb3 =.

    8.Nf3 Nc6 9.Be2 Nge7 10.0-0 0-0 11.Re1 Be6 12.Nbd2 Nf5 13.Bd3 Qd6 14.c3 =.

    8.Nf3 Ne7 9.Nbd2 Nbc6 10.Bd3 0-0 11.0-0 Bg4 12.c4 Nd4 13.h3 (13.Bd4 Bd4 Combination; 13.Nd4 Bd1 Pinning (13...Bd1 Deflection)) 13...Nf3 14.Nf3 Bh5 15.g4 Bf7 16.Qc2 Ng6 17.c5 Rc8 18.Bd4 Nf4 (better is 18...Bc5!? 19.Bc5 b6 20.Bb6 Qb6–+) 19.Bh7+= Kh8 20.Bf5 Be6 (worse is 20...Nh3 21.Kh2 Nf4 22.Rh1+/–) 21.Kh2 Bf5 22.Qf5 Bc7 23.Kh1 g6 24.Qc2 Kh7 25.Be3 Nh3 26.Kg2 Nf4 27.Bf4 Bf4 28.Rh1 Kg7 29.Nh4 f5 30.gf5 Qg5 31.Kf1 Rh8 32.Qc3 Kg8 (better is 32...Qf6 33.Qf6 Kf6 34.fg6 Bg5–+) 33.Rg1? (better is 33.Qh8 Kh8 34.Nf3 Qh5 35.Ke2-/+) 33...Rh4?? (33...Qh4 34.Rg6 Kf8 35.Qg7 Ke8-/+) 34.Rg5+– Bg5 35.fg6 d4 (35...Rf8 36.Qe5 Bf6 37.Qd5 Kg7 38.Qb7 Kg6+–) 36.Qf3 Rf8 37.Qd5 Kg7 38.Ra2 (better is 38.Qg5 Rh1 39.Kg2 Ra1 40.Qe7 Kg6 41.Qf8+–) 38...Kg6 39.Qb7 Be3 40.Qc6 Rf6 41.Qe8 Kh6 (41...Kg7 42.c6 Bf4 43.Qe7 Kg6 44.c7 Bc7 45.Qc7 Rh1 46.Kg2+–) 42.c6 Rhf4 (42...Bf4 43.c7! Bc7 44.Qh8 Kg5 45.Qg7 Kf5 46.Qc7 Rh1 47.Kg2+–) 43.c7 (43.c7 Rf2 44.Rf2 Rf2 45.Ke1+–) 1–0. latmartinsh (1805) – carlog (1785), gameknot.com, 2012.

    8.Nf3 Ne7 9.Be2 0-0 10.0-0 Nbc6 11.Re1 Be6 12.Nbd2 Nf5 13.c3 Qd6 14.Qb1 =.

    8.Nf3 Bg4 9.Be2 Nc6 10.0-0 Nge7 11.Re1 0-0 12.Nbd2 Rc8 13.h3 Bf5 14.c4 dc4 15.Bc4 Kh8 16.Rc1 Nd4?? (better is 16...Ng6+=) 17.Nd4+– Bd4 18.Bd4 Qd4 19.Re7 Rfd8 20.Bf1 Rc1 21.Qc1 Rc8 (21...h6 22.Nb3 Qb6+–) 22.Qc8! 1–0. marekt (2485) – njaddas (1850), ChessWorld.net, 2003.

    8.Qh5 g6 9.Qd1 Nc6 10.Nf3 Bg4 11.Be2 Bf3 12.Bf3 Qe7 13.Be2 Qe4 14.0-0 =.

    7.ed4 Bd6

    8.Bb5 Nc6 9.Nf3 Qa5 10.Nc3 Nge7 11.0-0 a6 12.Bd3 0-0 13.Re1 Bg4 14.h3 =+.

    8.Nc3 Be6 9.Nb5 Be7 10.Bd3 Nh6 11.Qh5 Bf7 12.Qf3 Nc6 13.Ne2 a6 14.Qg3 =+.

    8.Nc3 Be6 9.Nb5 Be7 10.Nh3 a6 11.Nf4 ab5?? 12.Ne6+– Qa5 13.c3 Kf7 14.Nf4 b4 15.ab4 Qc7 16.Qh5 g6 17.Qd5 Kf8 18.Ne6 Ke8 19.Nc7 Kf8 20.Ra8 Kg7 21.Ne6 Kh6 22.Bc1 g5 23.h4 Nc6 24.hg5 Kg6 25.Bd3 Kf7 26.Nf4 Kg7 27.Nh5 1–0. nimwitzovich – capelinhos, net–chess.com, 2002.

    8.Nc3 Qe7 9.Be2 Be6 10.Nf3 a6 11.0-0 Qd7 12.Re1 Ne7 13.Bd3 b5 14.Nb1 =.

    8.Nc3 Ne7 9.Bd3 Nbc6 10.Qh5 Attacking the isolated pawn on d5 10...g6 11.Qh6 Nd4 12.Qg7 Rf8 13.Qh7 Bf5 14.Bf5 Ndf5 (worse 14...gf5 15.0-0-0 Ne6 16.Qh5 (worse 16.Nd5 Nd5 17.Nh3 Ne7-/+) 16...Rf7 17.Qe2+= (worse 17.Nd5 Nd5 18.Nh3 Ndc7-/+)) 15.Nf3 d4 (15...Rc8 16.0-0-/+) 16.Ne4=+ Qa5 17.Nfd2 Qd5 (17...Bf4 18.Qh3=+) 18.0-0 (18.c4 Qe6 19.g4 Bf4 20.gf5 gf5 21.Qh5 Rf7 22.Qh8 Rf8 23.Qh5 Rf7 24.Qh8 Rf8 25.Qh5=) 18...0-0-0=+ 19.c4?? (better 19.Nd6 Qd6 20.Nf3=+) 19...dc3!-+ 20.Bc3? (20.Bc3 Rh8 Combination; 20.Nc3 Qd2 Discovered attack (20...Qd2 Deflection)) 20...Rh8 21.Nf6 (21.Nd6 Qd6 22.Ne4-+) 21...Rh7 22.Nd5 (22.Nh7 Nh4 23.f3 Rh8 24.Bh8 Qd2-+) 22...Nd5 (better 22...Bh2 23.Kh1 Nd5-+) 23.Bd4 (23.Rfc1 Bh2 24.Kf1 Kb8-+) 23...Kb8 (better 23...Bh2 24.Kh1 Bf4 25.Kg1 Nd4 26.g3 Bd2 27.Kg2-+) 24.Bb2 (24.Ba7 Ka7 25.h3-+) 24...Rc8 (better 24...Bh2 25.Kh1 Be5 26.Kg1 Bb2-+) 25.Nf3 Nf4 26.Rab1 (26.Rfd1 Rc2 27.Rd6 Nd6-+) 26...Rc2 (26...Ne2 27.Kh1-+) 27.Be5 (27.Rfd1 Re7-+) 27...Ne2 (better 27...Be5!? 28.Ne5 Ng3 29.Nc6 Rc6 30.fg3 Ne2 31.Kf2-+) 28.Kh1 Be5 29.Ne5 Nc3 30.Rb3 (30.Ra1 Ne4-+) 30...Nd4 (30...Ne4!? 31.Rbb1-+) 31.Rb4 Nde2 32.Rc4 (32.Ng6 a5 33.Rh4 Rh4 34.Nh4 Ra2-+) 32…Rc1 (32...Rc1 33.Rc1 Nc1 34.Rc3 Ne2+-). Chess__Academy (2345) - zumpili (2410), Rated Bullet game, lichess.org, 2020.

    8.Nc3 Ne7 9.Qh5 g6 10.Qf3 0-0 11.Nd5+= Nd5 12.Qd5 Kh8 (12...Kg7 13.c4+=) 13.Qf3 (13.c4 Re8 14.Be2 Qc7+/–) 13...Nc6 (13...Re8 14.Ne2+=) 14.Be2 (14.c4 Bc7 15.0-0-0 Re8+=) 14...Re8 (14...Bf5 15.c4+=) 15.Kf1 (15.c4 Bf5 16.c5 Be4=) 15...Bf5 16.c4 Rc8 (16...Be4 17.Qc3=) 17.Rd1 (17.c5 Be4 18.Qh3 Bf4+=) 17...Bc2 18.Rd2 (18.Re1 Be4 19.Qc3 Qc7+=) 18...Be4 19.Qc3 White plans c5 19...Bf4 (19...Kg7 20.Bg4 Bf4 21.Rd1+/–) 20.Rd1 Na5 21.c5 b6 (21...Bd5 22.h4+=) 22.h4 (22.Nf3 Bd5 23.Bb5 Re6+=) 22...Qd5 23.Nf3 Rc6 (23...h5 24.Kg1+=) 24.h5+/– g5 25.Ne1 Rce6 26.Bb5 (26.Bd3 Bc7+/–) 26...Rd8 (26...R8e7 27.f3 Bf5 28.Nd3=) 27.a4 (27.Kg1 Kg7+/–) 27...g4 (27...Kg8 28.Kg1+=) 28.Rh4 (28.Kg1 Bc7 29.cb6 Bb6+/–) 28...Qg5 29.g3 Bc7 (29...Bd5!? 30.Nd3 Bb8+/–) 30.Be2+– Qd5 (30...Bd5 31.Bg4 Re4 32.Nf3+/–) 31.Bg4 (31.Rg4?? Bd3!? 32.Kg1 Be2 33.cb6 Bb6–+) 31...Re7 (31...f5 32.Be2 f4 33.cb6 Bb6 34.f3+– (34.Rf4 Bd3 35.Kg1 Be2+=)) 32.Ba3 Ree8 33.Be2 Qf5 (33...Qe6 34.Bb5 Bc6 35.Bc6 Nc6 36.Rc1 Qe2 37.Kg1 Bg3 38.fg3= (worse is 38.Qg3 Rg8 39.cb6 Rg3 40.fg3 Rg8-/+)) 34.Bb4 (34.Rc1 Qd5+–) 34...Bb7 (better is 34...Nc6!? 35.Bg4 Qg5+–) 35.Bd3 Qe6 36.Bb5 (36.cb6 Qb6 37.Rc1 Nc6+–) 36...Bc6 37.d5 Bd5 38.Ba5 Be5 39.Qe3 ba5 40.Be8 Re8 (40...Qe8 41.Nd3 Bb7 42.Ke2+–) 41.Nd3 (41.f4 Bc3 42.Qe6 Be6+–) 41...Bc4 (41...Qc6 42.Ne5 fe5 43.Qg5+–) 42.Kg1 Bb3 (42...Rd8 43.Kh2 Ba2 44.Re1+–) 43.Re1 Bd5 44.Ne5 Qe5 (44...fe5 45.Qg5 Qe7 46.Qe7 Re7 47.h6+–) 45.Rd4 (45.Kh2 Kg7+–) 45...Bc6 46.h6 Qe3 47.Re3 Re3 48.fe3 Kg8 49.Rg4 Kf8 (49...Kh8 50.Rf4 Kg8 51.Rf6 Ba4 52.c6+–) 50.Rg7 Ba4 (50...Be4 51.Ra7 Ke8 52.Ra5+–) 51.Rh7 Kg8 52.Rg7 Kh8 53.Ra7 (53.Ra7 f5 54.Ra5+–) 1–0. Hoch,Hubertus (2165) – Gierth,Karlheinz (2215), BdF, 2004.

    8.Nc3 Ne7 9.Qh5 g6 10.Qf3 Bf5 11.g4 Qb6 12.Ra2 Bc2 13.Qf6 Rf8 14.Bb5 =+.

    8.c4 dc4 9.Bc4 Nd7 10.Nf3 Nb6 11.Qe2 Ne7 12.Bb3 Qd7 13.Nc3 Kd8 14.Rd1 +=.

    8.c4 Qe7 9.Qe2 dc4 10.Qe7 Ne7 11.Bc4 a6 12.Nd2 b5 13.Bb3 Bf5 14.a4 =.

    8.c4 Ne7 9.c5 Bc7 10.Nf3 Nbc6 11.Bd3 Bf5 12.0-0 0-0 13.Re1 Qd7 14.Nc3 =.

    8.c4 Ne7 9.cd5 0-0 10.Nf3 (10.Bd3 Qe8=) 10...Nd7 (10...Qb6 11.Bc1=+) 11.Bd3= Nb6 12.0-0 Bg4 13.Nc3 Bh5 14.Be2 Bf7 Increasing the pressure on the isolated pawn on d5 15.Qb3 (15.Re1 Ned5 16.Ne4 Nf4=) 15...Rb8 16.a4 Nbd5 (16...Ned5 17.Nd5 Bd5 18.Qb5=+) 17.Bc4= Nc3 18.Bf7 Rf7 19.Bc3 Nd5 20.Bd2 White prepares the advance a5 20...Kh8 21.Rfc1 Bf8 22.a5 Rd7 23.a6 b6 24.Qd1 Rc8 25.Rc8 Qc8 26.Qc1 (26.Qa4 Rd8=) 26...Qc1 27.Rc1 Kg8 28.Be3 (28.Rc8 Kf7=) 28...Kf7 29.Kf1 Rc7 30.Rc7 (30.Ra1!?=+) 30...Nc7-/+ 31.Ke2 Na6 32.Kd3 b5 (32...Ke6 33.Ke4-/+) 33.Nd2 (33.d5 Nc5 34.Kc3 a6-/+) 33...Nc7 (33...Nb4 34.Ke4-+) 34.Nb3-/+ Nd5 35.Bd2 Ke6 36.f3 f5 37.g4 g6 38.gf5 (38.h4 Nb6-/+) 38...gf5 (38...Kf5 39.Nc5-+) 39.h4 h5 40.Nc5 Bc5 41.dc5 Kd7 (41...Ne7 42.Be1-+) 42.Kc2 (better 42.Kd4 Ne7 43.Ke5-+) 42...Kc6 43.Kb3 (43.Be1 Nf4-+) 43...Nc7 (better 43...Kc5!? 44.Be1-+) 44.Be1 (44.Kc3 Ne6-+ (44...Kc5?! 45.Be3 Kc6 46.Ba7-+)) 44…Na6 (44...Kc5?! 45.Bf2 Kd5 46.Ba7-+) 0-1. achIevIng_3000 (2335) - zumpili (2425), Rated Bullet game, lichess.org, 2020.

    8.c4 Bf5 9.c5 Bc7 10.Qb3 b6 11.Bb5 Kf7 12.Ne2 a6 13.Bd3 Bd3 14.Qd3 =.

    8.Nd2 Qb6 9.Ra2 Ne7 10.Qh5 g6 11.Qf3 0-0 12.c4 Qc6 13.Bd3 b6 14.Ne2 =.

    8.Nd2 Be6 9.c4 Nc6 10.c5 Bc7 11.Ngf3 Bf5 12.Be2 Nge7 13.0-0 0-0 14.Re1 =.

    8.Nd2 Qe7 9.Be2 Bd7 10.c4 dc4 11.Nc4 Bf4 12.Bc1 Bh6 13.Nf3 Bc1 14.Qc1 +=.

    8.Nd2 Ne7 9.Ngf3 Bf5 10.c4 0-0 11.Be2 Ng6 12.Qb3 Nf4 13.g3 Ne2 14.Qb7 =+.

    8.Nd2 Bf5 9.c4 Ne7 10.c5 Bf4 11.Ne2 Bd2 12.Qd2 0-0 13.Ng3 Nbc6 14.Be2 +=.

    8.Bd3 Qb6 9.Qh5 Kd8 10.Bc3 Be6 11.Nd2 Qc7 12.Ne2 Nc6 13.0-0 Bf7 14.Qh4 =.

    8.Bd3 Qe7 9.Ne2 Be6 10.0-0 Qc7 11.Nec3 Bh2 12.Kh1 Kd8 13.Qe1 Bf7 14.g3 +–.

    8.Bd3 Ne7 9.Ne2 0-0 10.Ng3 Nbc6 11.Nd2 Re8 (11...Qb6!? 12.Nb3 f5=+) 12.0-0= Be6 13.Qh5 g6 14.Qh6 Bf7 (14...Bg3!? 15.fg3 Bf5=) 15.Nf3 (15.Nh5! Nf5 16.Bf5+/-) 15...Nc8 16.h4 (16.Rae1 Nb6=) 16...Bf8 17.Qd2 Nd6 18.h5 (18.Rfe1 Be6=) 18...Ne4=+ 19.Be4 (19.Qf4 g5 20.Qc1 Ng3 21.fg3 Bh5-/+) 19...de4-/+ 20.Ne1 (better 20.Nh2!?-/+) 20...Bc4-+ 21.hg6 hg6 (21...Bf1?! 22.gh7 Kh7 23.Nf1=+) 22.d5 Qd5 23.Qf4 (23.Qd5 Bd5 24.Bf6-+) 23...Bg7 (23...Bf1?! 24.Qf6 Ne5 25.Nf1-+) 24.Qg4 Bf1 (24...Qf7 25.Qh4-+) 25.Nf1 (25.Qg6 Re5! 26.Be5 A) worse 26...fe5 27.Kf1 Rf8 28.Qe4+/- (28.Ne4? Ne7 29.Qd6 Qe4-+); B) 26...Qe5?! 27.Nf5 Qc7 28.Kf1+=; C) 26...Ne5 27.Qe4 Qe4 28.Ne4 Bb5-+) 25...Qf7 26.Ne3 (26.Qf4-+) 26...f5 27.Qg5 (27.Nf5 Qf5 (27...Bb2?! 28.Nh6 Kg7 29.Nf7 Ba1 30.Nd6=; worse 27...gf5 28.Qg5-+) 28.Qg3 Bb2 29.Qb3 Re6 30.Qb2 Rf8-+) 27...Bb2 28.Rb1 Bf6 29.Qf4 Re7 (29...Nd4 30.Qh6-+) 30.c4 (30.Rd1 Nd4 31.Rd2 Be5-+) 30...Rd8 (30...Nd4 31.Qh6-+) 31.Nd5 Red7 32.Nc2 Be5 33.Qe3 (33.Qg5 Kg7-+) 33...Qg7 (33...Na5 34.Qe2 Nc4 35.Nde3-+) 34.Qc5 (34.Qg5 Na5-+) 34...Qh6 35.g3 (35.Rd1 Qh2 36.Kf1 Qh1 37.Ke2 Qg2-+) 35...Qd2 (35...Rh7 36.Nf6 Bf6 37.Qd5 Rd5 38.Kf1 Qh1 39.Ke2 Qf3 40.Ke1 Rh1) 36.Nce3-+ Bd4 37.Qb5 Be3 38.Ne3 (38.fe3 Rh7 39.Qb2 Rd5 40.cd5 Ne5 41.Qd2 Nf3 42.Kf2 Rh2 43.Kf1 Nd2 44.Kg1 Nf3 45.Kf1 Rh1 46.Kf2 Rb1-+) 38...Nd4 39.Qb4 Nf3 40.Kg2 (40.Kf1 Rh7 41.Qd2 Rh1 42.Kg2 Rh2 43.Kf1 Rd2 44.Nd1 e3 45.Rb7 e2) 40...Rh7 41.Qd2 (41.g4 Rh2 42.Kg3 g5 43.Qf8 Kf8 44.gf5 Qf2 45.Kg4 Qh4) 41...Rh2 42.Kf1 Rd2 43.Rd1 (43.Nd1 e3! 44.Rb7 e2) 43…Rhf2 (43...Rdf2?!=) 0-1. pacal56 (2260) - mecker (2130), Rated Blitz game, lichess.org, 2014.

    8.Bd3 Ne7 9.Nf3 Qb6 10.Ra2 Bg4 11.h3 Bf5 12.Bf5 Nf5 13.0-0 Qa6 14.Re1 =.

    8.Bd3 g6 9.Nf3 Qe7 10.Be2 g5 11.Nc3 Be6 12.0-0 Nc6 13.Re1 0-0-0 14.Bd3 +/–.

    8.Ne2 Nc6 9.Ng3 Nge7 10.Bd3 0-0 11.0-0 f5 12.Re1 (12.Nd2 Qb6 13.Rb1 Nd4=+) 12...g6 (12...f4!? 13.Nf1 Qb6=+) 13.Nd2= f4 14.Ngf1 Bf5 15.Nb3 Qb6 16.Rb1 (16.c4 Bd3 17.Qd3 Qa6+=) 16...Rae8 17.Qd2 (17.Bf5 Nf5 18.Qf3 Nce7=) 17...Bd3 (17...f3 18.g3=) 18.Qd3= Nf5 d4 becomes the focus of attention (18...Na5 19.Qf3 Qd8 20.Na5 Qa5 21.Bc3=) 19.Re8 Re8 20.Nfd2 Qd8 (20...h6 21.c4 Qa6 22.Qf3 dc4 23.Qd5 Kg7 24.Nc4+/-) 21.Nf3 (better 21.Qb5+/-) 21...g5?? (better 21...Qc8!?=) 22.c4 (better 22.Qf5 Be7 23.c4+-) 22...Qf6+/- 23.cd5 Nce7 24.Ne5 Nd5 25.Ng4 (better 25.Qb5 Qe6 26.Nc5 (26.Qb7? Rb8 27.Qa7 Rb3-+) 26...Bc5 27.dc5+/-) 25...Qg6?? (25...Qe6 26.Nd2 Kg7 27.Ne5+=) 26.Ne5 (better 26.Qf5! Kg7 27.Qg6 (27.Qd5?? Qb1 28.Nc1 Re1) 27...Kg6 28.Ne5 Kf5 29.g4 fg3 30.fg3+-) 26...Be5 (26...Qf6 27.Qb5 Qe6 28.Nc5 (28.Qb7 Rb8 29.Qa7 Rb3-+) 28...Bc5 29.dc5+/-) 27.de5+= Nb6 (27...Nfe7!? 28.Qg6 Ng6=) 28.Nc5+/- Ne7 29.Qb3 Ned5 (29...Nbd5 30.Rd1 Qb6 31.Qb6 Nb6 32.Ne4+/-) 30.Rd1+- Qf7 (30...Qc6 31.Ne4 Kg7 32.Nd6+-) 31.Ne4 Kf8 (31...Qe6 32.Ng5 Qc6 33.Ne4+-) 32.Ng5 (32.Nd6 Qe6 33.Ne8 Ke8+-) 32...Qe7 (32...Qf5 33.Nh3 Qg4+-) 33.Ne4 (33.Rd5?! Nd5 34.Qd5 Qg5 35.Qb7 Qg6+/-) 33...Rd8 (33...Qe6 34.a4 Qc6 35.a5+-) 34.h3 (better 34.Nd6 Nc7 35.Qh3+-) 34...f3? (34...Qe6 35.Nf6+-) 35.Rd4 (better 35.Qf3 Qf7 36.Nf6+-) 35...fg2 36.Qf3 (36.a4 Qe5 37.Qf3 Ke7+-) 36...Ke8 (better 36...Qf7 37.Kg2 Qf3 38.Kf3 Rc8+-) 37.Nf6 Nf6 38.Rd8 (better 38.ef6!? Qe1 39.Kg2 Rd4 40.Bd4+-) 38...Kd8+/- 39.ef6 Qe1? (better 39...Qf7+/-) 40.Kg2+- Qe6 (40...Nd7 41.f7 Qe7 42.Bc3+-) 41.f7 (41.Qb7?! Qd7 42.Qb8 Nc8+-) 41...Qg6 42.Kh2 (42.Kh1 Nd7 43.Bf6 Kc7 44.Be5 Kd8 45.f8Q Nf8 46.Qf8 Kd7+-) 42...Nd7 (42...Qd6 43.Kh1 Nd7+-) 43.Bd4 (better 43.Bf6 Kc7 44.Be5 Kd8 45.f8Q Nf8 46.Qf8 Kd7 47.Qf3+-) 43...b6?? (43...Qd6!? 44.Kg2 Qd4 45.f8Q Nf8 46.Qf8 Kd7 47.Qf5 Kc6 48.Qe6 Kc5 49.Qe7 Kc6+=) 44.Be3 (44.Qa8 Ke7 45.Qe8 Kd6 46.Be5 Ne5 47.f8Q Kd5 48.Qb5 Ke4 49.Qbb4 Kd5 50.Qd8 Ke6 51.Qdd6 Kf5 52.Qb1 Nd3 53.Qbd3 Kg5 54.Qe5 Qf5 55.Qdf5 Kh6 56.Qfe6) 44...Qd6? (better 44...Ke7+/-) 45.Bf4+- Qf8 46.Bg3 (better 46.Bg5 Kc7 47.Qf4 Qd6 48.Bh6+-) 46...Kc8?? (46...Ke7 47.Bh4 Kd6 48.Qd3 Ke6 49.Qe4 Ne5+-) 47.Qc6 (47.Qa8 Nb8 48.Qb8 Kd7 49.Qf8 Ke6 50.Qg8 Kd5 51.f8Q Kc6 52.Qc4 Kd7 53.Qd5) 47...Kd8 48.Qe6 1-0. norba94 (2385) - mecker (2345), Rated Blitz game, lichess.org, 2016.

    8.Nf3 Qa5 9.Bc3 Qc7 10.Bb5 Bd7 11.Bd7 Nd7 12.Bb4 Ne7 13.0-0 0-0 14.Qe2 =.

    8.Nf3 Qb6 9.Ra2 Qc6 10.a4 a6 11.Bd3 Ne7 12.0-0 0-0 13.Re1 Re8 14.Ba3 +=.

    8.Nf3 Nc6 9.Bd3 Qe7 10.Be2 Nh6 11.0-0 Qf7 12.Nbd2 Be6 13.c4 dc4 14.Qa4 =.

    8.Nf3 Qc7 9.Nc3 Qb6 10.Bd3 Bd7 11.Nd5 Qa5 12.Nc3 Bg4 13.h3 Bf5 14.0-0 +–.

    8.Nf3 Bd7 9.Bd3 Nc6 10.0-0 Nge7 11.Nbd2 0-0 12.c4 Qc7 13.Re1 Kh8 14.Rc1 +=.

    8.Nf3 Nd7 9.Bd3 Ne7 10.Nbd2 Nb6 11.c4 dc4 12.Nc4 Nc4 13.Bc4 Bg4 14.Qb3 =.

    8.Nf3 Bf5 9.Be2 Qb6 10.Ra2 Ne7 11.c4 dc4 12.Nbd2 Qa5 13.Bc4 b5 14.Bb3 +=.

    8.Nf3 Kf7 9.Bd3 Qe7 10.Be2 Nc6 11.0-0 Be6 12.c4 Qd7 13.cd5 Bd5 14.Nc3 +=.

    8.Nf3 Bg4 9.Be2 Ne7 10.Nbd2 0-0 11.c4 Ng6 12.0-0 Nf4 13.cd5 Nd7 14.Re1 =.

    8.Nf3 Nh6 9.Be2 Be6 10.0-0 0-0 11.Nbd2 Qc7 12.Re1 Re8 13.Rc1 Nc6 14.c4 =.

    8.Qh5 g6 9.Qf3 Nc6 10.Nd2 Be6 11.Rc1 Qb6 12.Rb1 Nd4 13.Qd3 Be5 14.Bd4 =.

    8.Nf3 Ne7

    9.Nc3 0-0 10.Nb5 1–0. Fournier,Frederic (1785) – Bacardi_Breezer (1705), rated blitz game (3/0), 2002.

    9.c4 Be6 10.c5 Bc7 11.Bd3+= Nbc6 12.0-0 0-0 13.Nc3 a6 14.Re1 Bf5 15.Bf5 Nf5 16.Ne2 Re8+= 17.Qd3 Nh6 18.Rab1 Qd7 19.Bc1 Nf7 20.Bd2 Re7 21.Nf4 Bf4+= 22.Bf4 Rae8 23.Re7 Re7 24.Re1 Re1 25.Ne1 Qe7 26.Nc2 Na5 27.Ne3 Qe6 28.h3 Nc6 29.Kh2 Qe4 30.Qe4+/– de4 31.d5 Nce5 32.Be5 Ne5+= 33.Nf5 Nd7 34.c6+– bc6 35.dc6 Nb6 36.c7 Nc8 37.Ng3 e3 38.fe3 Kf7 39.Ne4 Ke7+/– 40.Nc5 a5 41.Nb7 a4 42.Nc5 Kd6 43.Na4 Kc7 44.Nc3 Kc6 45.Kg3 Nd6 46.Kf4 Nc4 47.a4 Kc5 48.g4 Kb4 49.Nd5 Ka4 50.Nf6?? gf6–+ 51.Kf5 Ne3 52.Kf6+= Kb5 53.Kg7+– Kc6 54.Kh7 Kd6 55.g5 Ke6 56.g6 ½–½. realxadrez – yer, net–chess.com, 2006.

    9.Bd3 0-0 10.0-0 Nbc6 11.Nbd2 Ng6 12.Re1 Nf4 13.Bf1 Bg4 (13...Qb6 14.Rb1 Bf5 15.Nh4+/-) 14.h3 (better 14.g3 Nh3 15.Bh3 Bh3 16.c4=) 14...Bh5?? (14...Be6 15.c4 Qd7 16.g3 Nh3 17.Bh3 Bh3 18.cd5=+) 15.c4 (better 15.g3!? Re8 16.gf4 Bf4 17.Re8 Qe8 18.Bg2+-) 15...Qd7 16.cd5 Nd5 17.Qb3 Bf7 18.Qa4 (18.Ne4 Rac8=) 18...a6 19.Qd1 b5 20.Rc1 Rac8 (20...Rfe8 21.Ne4=+) 21.Nb3 Bf4 22.Nc5 Qa7 23.Rc2 Rfd8 (23...Na5 24.g3 Bd6 25.Nd2=) 24.Bd3+= Bd6 (24...Nce7!?+=) 25.Bf5+/- Rc7 (25...Ra8!? 26.Ne6 Rdc8+/-) 26.Ne6+- Be6?? (better 26...Qb6+-) 27.Be6 (27.Re6?! Nce7 28.Bd3 Nf4=+) 27...Kh8 28.Bd5 Ne7 29.Be4 f5 (29...Rdc8 30.Rc7 Qc7 31.d5+-) 30.Bd3 (better 30.Ng5 fe4 31.Nf7 Kg8 32.Nd8 Rc2 33.Qc2 Qa8+-) 30...Rc2 31.Qc2 Qd7 (31...Rf8 32.Ng5 Qb7 33.Re6+-) 32.Ne5 (32.Ng5 Rf8+-) 32...Be5 (32...Qe6 33.Qb1 Qd5 34.Bc2+-) 33.Re5 (33.de5?! Qd3 34.Qc5 Qd7+/-) 33...g6 (33...Qd6 34.Qe2 Ng6 35.Re8 Nf8 36.Rd8 Qd8 37.Qe5+-) 34.d5 Kg8 35.Qc5 Nd5 36.Qd4 (better 36.Bb1 Rc8 37.Rd5 Rc5 38.Rd7+-) 36...Nf4 (36...Nf6 37.Qd7 Rd7+- (37...Nd7?? 38.Rd5+-)) 37.Qf4 Qd3 38.Qc1 (38.Re1 Qd6 39.Qe3+-) 38...Qd1 39.Qd1 Rd1 40.Kh2 Rd2 (40...Rd3 41.Re3 Re3 42.fe3+-) 41.Bc3 Rf2 42.Re7 (42.Re6!? Rc2 43.Bb4 a5 44.Ba5 Kf7+-) 42...Rc2 43.Be5 (43.Bb4 f4 44.Kg1 Rc6+-) 43...Re2+/- 44.Bf6 (44.Rg7 Kf8 45.Bf6 Re6+/-) 44...Re7 45.Be7 Kf7? (better 45...a5!?+=) 46.Bb4+- Ke6 47.Kg3 g5 48.Kf3 Ke5 Black plans f4 49.Ke3 (49.g3 Kf6+-) 49...h5 (49...f4 50.Kd3+/-) 50.Ba5 (50.Bc3 Kd5 51.Bf6 f4 52.Kf3+-) 50...f4+/- 51.Kf3 Kf5 52.Kf2 g4 53.h4 Ke4 54.Bc7 Kf5 55.Ke2 Ke4 56.Bd6 (56.Bb6 f3 57.Kf2 fg2 58.Kg2 Ke5+/-) 56...Kf5 (56...a5 57.Kf2+=) 57.Kd3 (57.Bb4 Ke4+/-) 57...f3 (57...g3!?+=) 58.g3+/- f2?? (better 58...Ke6 59.Bc5 Ke5+/-) 59.Ke2+- f1Q 60.Kf1 Ke6 (60...a5 61.Bc5+-) 61.Bb4 Kd5 62.Kf2 Kd4 63.Ba5 Kc4 (63...Kd3+-) 64.Bb4 Kb3?? (64...Kd4 65.Ke2 Ke4+-) 65.Bc5 1-0. norba94 (2210) - mecker (2215), Rated Blitz game, lichess.org, 2015.

    9.Bd3 Qb6 10.Ra2 Bg4 11.0-0 0-0 12.h3 Bf3 13.Qf3 Nbc6 14.Qe3 =.

    9.Be2 0-0 10.0-0 Nbc6 11.Re1 Qb6 12.Qc1 Bf5 13.Nbd2 Rac8 14.c4 Qd8 15.c5 Bb8 16.h3 Ng6 17.Bc3 Nf4 18.Bf1 Qc7 19.Re3 Rfe8 20.Qb2 Re3 21.fe3 Ng2? (better 21...Ne6=) 22.Bg2+- (22.Kg2?! Bh3 23.Kf2 Bg4+/-) 22...Qg3 23.Nf1 (23.Qb7 Bh3 24.Nh4 Qh4 25.Bd5 Kh8 26.Bc6 Qg3 27.Bg2 Qe3 28.Kh1 Qc3-+) 23...Qc7 24.Kf2 Re8 25.Bd2 Na5? (better 25...Kh8+-) 26.Ba5 Qa5 27.Qb7 Be4 28.N3d2 Qc3 (28...Bg2 29.Kg2 Qd8 30.Nb1+-) 29.Rb1! Bb1 30.Bd5 Kh8 31.Nb1 Qc2 32.Nbd2 White intends c6 32...Qf5 33.Bf3 Qh3 34.c6 Qh4 35.Ke2 Qd4 36.c7 (36.c7 Bc7 37.Qc7+-) 1-0. muhammadaudii (2125) - kvazimotor (2100), Black Lives Matter, lichess.org, 2020.

    6.d4 Bd6

    7.c4 dc4 (7...Be6 8.de5 Bc5 9.ef6 Nf6 10.cd5 Bd5 11.Nc3+/–) 8.Bc4 (8.de5 fe5 9.Bc4 Nf6=) 8...Ne7 (8...Nc6 9.Qh5 g6 10.Qf3=) 9.Nf3 (9.de5 Be5 10.Qd8 Kd8 11.Be5 fe5+=) 9...Nbc6 (9...e4 10.Nfd2 Bf5 11.Nc3+/–) 10.0-0 Bg4 (10...e4 11.Nfd2 Bf5 12.Nc3+/–) 11.h3 (11.d5 Na5 12.Qa4 Kf7=) 11...Bh5 (11...Qb6 12.Bc3 Bf3 13.Qf3 ed4 14.ed4 Nd4 15.Qg4=) 12.g4 (12.d5!? Na5 13.Bb5 Kf8 14.e4+=) 12...Bg6+= 13.de5 (13.d5 Na5 14.Bb5 Kf7+=) 13...fe5 14.Ng5 Qb6 (14...Nc8 15.f4+=) 15.Qb3 (15.Bc3 Rd8 16.Ne6+=) 15...Qb3+= 16.Bb3 0-0-0 (better is 16...h5!?+=) 17.Ne6+= Rd7 18.Ng7 Kb8 19.Ne6 h5 (19...Na5 20.Ba4 Nac6 21.f4+/–) 20.g5 (20.f4 Bd3+/–) 20...Bf5+= 21.Nc3 (21.f4!? Bh3 22.Rc1=) 21...Bh3 22.Rfd1 Nd8 (22...h4 23.Ne4 Nf5 24.Nd6 Rd6 25.Kh2+/–) 23.Nd8 (23.Ne4 Be6 24.Be6 Ne6 25.Rd6 Rd6 26.Be5 Nc6 27.Bh8 Rd8+–) 23...Rhd8 (23...Rdd8 24.Nb5 Nf5 25.Nd6 Rd6 26.Be5+–) 24.Nb5 Ng6 25.Nd6 Rd6 26.Rd6 Rd6 27.Bf7 e4 28.Rc1 Bg4 29.Rc4 (29.Bf6 Nh4+=) 29...Bf5 (29...Bf3 30.Bg6 b5 31.Be4 bc4 32.Bf3+–) 30.Bf6 (30.Rc5 Bg4+=) 30...Rc6 (30...Be6 31.Bg6 Rd1 32.Kh2 Bc4 33.Be4+=) 31.Rd4 White gets the initiative 31...Rc1 (31...Kc7 32.Bd5 Rc3 33.Re4 Be4 34.Be4 Rc1 35.Kg2+–) 32.Kh2 Rc8 33.Rd5 (33.Bd5 Rc2+/–) 33...Rf8 34.Rf5 Rf7 35.Rc5 (35.f3 ef3 36.Rf3 Kc8+/–) 35...b6 36.Rc4 Rd7 37.Re4 Rd2 38.Kg3 Rd3? (38...Kc7 39.f4 h4 40.Kg4+–) 39.a4 (better is 39.Re8 Kc7 40.Rg8+–) 39...Kc7 (39...a6 40.Be5 Kb7 41.f4+–) 40.Re8 (40.Rd4 h4 41.Kg4 Rc3+–) 40...Kd7?? (better is 40...h4 41.Kg4 Kc6+–) 41.Rd8+– (41.Rd8 Ke6 42.Rd3 h4 43.Kg4+–) 1–0. Bender,Wolfgang – Leibfried,Andreas, Saarland–chB, 1993.

    7.de5!? fe5 8.Qd5?? Bb4 9.ab4 Qd5–+.

    7.de5 fe5 8.Be5 Be5 9.Qh5 Kf8 10.Qe5 Qf6 11.Qf6 Nf6 12.Nf3 Nc6 13.Bd3 Bg4 14.Nbd2 Re8 15.Rb1 d4 (15...Re7 16.h3 Bf3 17.Nf3+/–) 16.0-0 (16.Nd4?! Nd4 17.Rb7 a5+=) 16...de3 17.fe3 Nd8 18.e4 Bc8 (18...Ke7 19.Nc4+–) 19.Nc4 Ke7? (19...Be6 20.e5 Ng4 21.Nd4 Ke7 22.Ne6 Ke6 23.Bf5 Kd5+–) 20.e5 Nd5 21.Nd6 Ref8 (21...Ne6+–) 22.Nc8 (22.Nc8 Ke6 23.Na7+–) 1–0. orane – apostol, caissa.com, 2007.

    7.de5 fe5 8.Be5 Be5 (8...Nf6 9.Bd6) 9.Qh5 Kf8 10.Qe5 Nf6 11.Nf3 Nc6 12.Qb2 Qa5 13.Nbd2 Ne4 14.c4 Bg4 15.cd5 Bf3 16.gf3 Nd2 17.Qd2 Qd2 18.Kd2 Ne5 19.f4 Nf3? (19...Ng4 20.f3) 20.Ke2 Nh4 21.e4 Ke7 22.Rg1 Kf6 23.e5 Kf7 24.Rc1 Ng6 25.Rc7 1–0. Wall,Bill – Guest1608729, playchess.com, 2012.

    7.de5 fe5 8.Be5 Nf6 9.Bb5 Nc6+= 10.Bd6 Qd6 11.Nd2 0-0 12.Ngf3 Be6 13.0-0 Qc5 14.Bc6 bc6+= 15.Nb3 Qc3? 16.Qd3 Qd3 17.cd3 Rab8 18.Nc5 Bf5 19.Nd4 Nd7 20.Nf5 Nc5 21.Ne7 Kh8 22.Nc6 Rb7 23.Ne5 Rb2 24.Rac1 Nb3 25.Rb1 Rb1 26.Rb1 Rc8 27.f3 Nc1 28.Rb7 a6 29.Ra7 Nb3 30.Ra6 Kg8 31.Rd6 Ra8 32.Rd5 Nc1 33.Rc5 Nd3 34.Nd3 Ra3 35.Ne5 Kf8 36.e4 Ra1 37.Kf2 Ra2 38.Kg3 Ke7 39.f4 Ra7 40.h4 Ke6 41.f5 Kf6 42.Kf4 Ke7 43.g4 h6 44.g5 hg5 45.hg5 Rb7 46.Rc3 Ke8 47.f6 gf6 48.gf6 Kd8 49.Rd3 Kc8 50.f7 Rf7 51.Nf7 Kc7 52.e5 Kb6 53.e6 Kb7 54.Nd6 Kc7 55.e7 Kb6 56.e8Q Kc7 57.Qc8 Kb6 58.Rb3 Ka7 59.Qb7# 1–0. glc209_wb – DrChess, computer chess game, 2000.

    7.de5 Be5 8.Be5 fe5 9.Nf3 Nc6 10.Bb5?? e4?? (10...Qa5 11.Qd2 Qb5 12.Nc3-+) 11.Ne5?? (11.Nd4 Nge7=) 11...Qd6?? (better 11...Qa5 12.Nd2 Qb5 13.Qh5 g6 14.Ng6 Nf6-+ (14...hg6?! 15.Qh8 Be6 16.Rd1=+)) 12.Qh5+= g6 13.Ng6 Qg6 (13...Qg6 14.Qe5 Double attack; 13...hg6 14.Bc6 Double attack (14.Qh8 Pinning; 14.Qh8 Deflection)) 14.Qe5 Kf8 (14...Be6 15.Qh8 Qg2 16.Rf1 Qh2 17.c4+/-) 15.Qh8 Qg2 16.Rf1 Bg4? (better 16...Qh2!? 17.f3 Qg3 18.Ke2 Qg2 19.Kd1 ef3+/-) 17.Qh7+- Ne5 (17...Nce7+-) 18.Nc3?? (better 18.Nd2 Nf7 19.c4+-) 18...Rc8 (18...Nf3!? 19.Kd1 Ng5 20.f3 Nh7 21.fg4 Ngf6 22.Be2-+) 19.Nd5?? (19.f4 Nd3 20.Bd3 Rc3-+) 19...Rc2?? (better 19...Nf3 20.Kd1 Ng5 21.f3 Qc2 22.Ke1 Nh7 23.fg4 Kg7-+) 20.Nf4= Nf3 Attacks the backward pawn on h2 21.Kd1 Nd4 22.Ke1 Nf3 23.Kd1 Ng5?? (better 23...Nd4! 24.Ke1 Nf3 25.Kd1=) 24.Kc2+- Nh7 25.Ng2 Bh3 (25...Ngf6 26.Bc4+-) 26.Rg1 1-0. muhammadaudii (2165) - sciecha73 (2190), Rated Blitz game, lichess.org, 2020.

    7.de5 Be5 8.Be5 fe5 9.Qh5 Kf8 10.Qe5 Qf6 11.Nf3 Nc6 12.Qf6 Nf6 13.Nbd2 Bf5 14.Bd3 Ne4 15.Nd4 (15.Nh4!? g6 16.Rb1+/–) 15...Nd4+= 16.ed4 Re8 17.Ne4 (17.0-0-0 Nd6 18.Bf5 Nf5+/–) 17...Be4+= 18.Kd2 Bg2 19.Rhg1 (19.Rhe1 g6+=) 19...Be4 20.Be4 (20.Rae1 Bd3 21.Kd3 Re1 22.Re1 Kf7+=) 20...Re4= (worse is 20...de4 21.Rg4+/–) 21.c3 Kf7 ½–½. jaddwarrior (2070) – blackcrowman (1950), ChessWorld.net, 2013.

    6.Nf3 Nc6

    7.Bb5 a6 8.Ba4 b5 9.Bb3 d4 10.ed4 Bd4 11.Nd4 Nd4 (worse is 11...ed4 12.0-0 Bf5 13.a4 ba4 14.Ba4+/–) 12.Bd4 Qd4 (worse is 12...ed4 13.0-0 Qd6 14.a4+=) 13.Nc3 Bb7 14.0-0 Ne7 15.Kh1 Nf5 16.Qe2 Nh4 17.f3 Rd8 18.Rad1 a5?? (better is 18...Ng6=) 19.Qb5+– Rd7 20.Ba4 Bc8 (20...Ke7 21.Qd7 Qd7 22.Bd7 Kd7 23.d4+–) 21.Qd5 (better is 21.Qa5!? Kf7 22.Bd7 Bd7+–) 21...Qd5 22.Nd5 0-0 23.Bd7 Bd7 24.Nb6 (24.d4 Ng6+–) 24...Bb5 25.d3 Rb8 26.Nd5 Ba4 27.Rc1 Rb2 28.Rf2 (28.f4!? Ng6 29.fe5 Ne5+–) 28...Ra2 29.Nb6 Bc6 30.Nc4 Bd5 31.Na5 Ra3 32.Nc4 Nf5?? (better is 32...Bc4 33.dc4 Nf5+–) 33.Na3 Ne3 (33...Kf8 34.c3+–) 34.Kg1 h5 (34...g5 35.h4! g4 36.Re2+–) 35.c4 Bb7 36.Rb2 Ba8 (36...Bc6+–) 37.Rb8 Kh7 38.Ra8 h4 39.c5 Nd5 40.c6 Nc7 41.Rb8 (41.Ra7 Nd5+–) 41...Kh6 42.Rb7 Nd5 43.c7 (better is 43.Rc5 Nf4 44.c7 Ng6+–) 43...Nc7 44.Rbc7 g6 45.Ra7 Kg5 46.Rcc7 Kf5 47.g3 (47.Rc6 Kg5 48.Raa6 Kh5 49.Rf6 e4 50.Rg6 ef3 51.gf3 h3 52.d4 Kh4 53.f4 Kh5 54.Rg5 Kh4 55.Rh6) 47...hg3 48.hg3 g5 49.Kf2 (49.Nc4 g4 50.Ne3 Kg5 51.Rg7 Kh5 52.fg4 Kh6 53.Nf5) 49...g4 50.fg4 (50.Nc4 Kg5 51.Rg7 Kh6 52.Nd6 gf3 53.Rh7 Kg5 54.Rag7) 50...Kg4 51.Rg7 Kf5 (51...Kh5 52.g4 Kh6 53.Rh7 Kg5 54.Rag7 Kf4 55.Rh5 f5 56.Rf5) 52.Raf7 (52.Ra6 e4 53.d4 e3 54.Kf3 e2 55.g4) 52...Ke6+– 53.Ra7 Kf5 54.Nc4 Ke6 55.g4 (55.Rad7 e4 56.de4 f5 57.Rd6) 55...Kd5 56.Rgd7 Ke6 (56...Kc5 57.Rdc7 Kb4 58.Rab7 Kc3 59.Ke3 Kc2 60.Ne5 Kd1 61.Rb1) 57.Re7 (57.Rd6) 57...Kd5 58.Rad7 (58.Rac7 Kd4 59.Nb6 Kd3 60.Red7 Ke4 61.Rc4) 58...Kc5 59.Rf7 (59.Rc7 Kb4 60.Re6 f5 61.Rb6 Kc3 62.Ne3 Kd2 63.Rd6 fg4 64.Rc2) 59...Kb4 (59...e4 60.Rc7 Kd4 61.Rf8 e3 62.Ke2 f5 63.Rd8 Kc3 64.Ne3 Kb4 65.Rb8 Ka5 66.Ra7) 60.Rf6 Kc3 (60...Kb3 61.Rb7 Kc2 62.Ne3 Kd3 63.Rc6 Ke4 64.Rc4 Kd3 65.Rd7) 61.g5 (61.Rc6 Kb3 62.Rb7 Kc3 63.Ke3 Kc2 64.Ne5 Kd1 65.Rb1) 61...Kb3 (61...Kc2 62.Ne3 Kb3 63.Rb6 Kc3 64.Rc7 Kd2 65.Rb3 e4 66.Rc2) 62.g6 (62.Na3 Kb2 63.Rb7 Kc3 64.Ke3 e4 65.Rc6) 62...Kb4 (62...e4 63.Nd2 Kc2 64.Rc6 Kd1 65.Nf1 e3 66.Ne3 Kd2 67.Rc2) 63.g7 (63.Rc7 e4 64.Rb6 Kc3 65.Ne3 Kd4 66.Rc4 Kd3 67.Rd6) 63...Kc3 (63...Kb3 64.g8Q Kc3 65.Qb8 Kc2 66.Qb2 Kd1 67.Qd2) 64.g8Q Kc2 65.Rc6 Kc3 66.Ne5 Kd2 (66...Kb4 67.Rb7 Ka5 68.Qa2) 67.Qg5 Kd1 68.Qc1 1–0. Fournier,Frederic (1810) – rolofe, Active, 2006.

    7.Nc3 d4 8.Ne4= Bb6 9.Bc4 Nge7 10.Qe2 Nd5 11.0-0 0-0 (11...Bg4 12.h3 Be6 13.Rab1=) 12.ed4+= ed4 13.Rab1 (13.Ng3 Kh8 14.Rfe1 Nf4+=) 13...Kh8= 14.h3 Bf5 15.d3 Re8 16.Qd2 (better 16.Rfe1=) 16...Qc7?? (16...Be4 17.de4 Re4 18.Qd3=+) 17.Rfe1?? (better 17.Bd5 Rad8 18.Bc6 Qc6 19.Rfe1+-) 17...Nf4 (17...Ba5!? 18.c3 Be4 19.Re4 dc3-/+) 18.a4 (18.Bb5 Ba5 19.c3 Rad8 20.Bc6 bc6-/+) 18...Bg6 (18...Ba5 19.c3=+) 19.Bb5 (19.Bc1 Be4 20.Re4 Re4 21.de4 Ne5 22.Ne5 fe5=) 19...Ba5 20.Qd1?? (better 20.c3=) 20...Be1-+ 21.Qe1 (21.Ne1 Be4 22.de4 Re4 23.Nf3-+) 21...f5 22.Bc6 bc6 (22...Qc6 23.Nd4 Qa4 24.Qe3 Ng2 25.Nf5 Bf5 26.Bg7 Kg8 27.Qg5 Re4 28.Bh6 Bg6 29.de4+=; 22...fe4?! 23.Be8 Ng2 24.Qf1 Re8 25.Nd4-+) 23.Bd4 (23.Nh4 fe4 24.Ng6 Ng6 25.de4 Qe5-+) 23...fe4 24.Qc3 (24.Nh4 ed3 25.Ng6 hg6-+) 24...ed3 (better 24...Ne2 25.Kh1 Nc3 26.Bc3 ef3 27.gf3-+) 25.cd3 (25.Kh1 dc2 26.Rc1 Ne2-+) 25...Bd3 (better 25...Ne2 26.Kh1 Nc3 27.Bc3 Bd3-+) 26.Rb2 c5! 27.Be5 (27.Qc5 Qd7 Combination; 27.Bc5 Ne2 Double attack) 27...Re5! 28.Ne5 (28.Qe5 Qe5 Combination; 28.Ne5 Ne2 Double attack) 28...c4 (28...Ne2 29.Re2 Be2 30.Qe3-+) 29.Kh2 (29.Nd3 Nd3 30.Re2 Rb8-+) 29...Ne2 30.Re2 Be2 31.Qd4 (31.f4-+) 31...Re8 (31...c3!? 32.Qf4 Rc8 33.Nf7 Kg8 34.Ne5-+) 32.Qf4 (32.f4 c3 33.Qe3-+) 32…Qe5 (32...Qe5 33.g3 Qf4 34.gf4 c3 35.Kg2 c2 36.Kg1 c1Q 37.Kg2 Qf1 38.Kg3 Qg1 39.Kh4 g5 40.fg5 Qf2) 0-1. black_bishop_88 (2485) - Niyaz_Mukhamadeev1 (2400), lichess.org, 2020. (=1.a3 c5 2.b4 d5 3.bc5 e5 4.Bb2 Nc6 5.Nf3 f6 6.e3 Bc5)

    7.Nc3 Nge7!?=+.

    7.c4 e4 8.Nd4 Nd4 9.ed4 Bb6 10.c5 Ba5 11.Nc3 Be6 12.Bb5 Ke7 13.0-0 a6 14.Be2 b5 15.d3 ed3 16.Bd3 b4 (better is 16...Kd7+–) 17.ab4 Bb4 18.Qe2 Nh6? (18...Kf7+–) 19.Rfe1 (19.Ra6?! Ra6 20.Ba6 Kf7+–) 19...Qc8 (19...Qd7 20.Qe6! Qe6 21.Nd5 Kf7 22.Re6 Ke6 23.Nb4 a5+–) 20.Na4 (better is 20.Ra6 Bc3 21.Re6 Kf7 22.Qh5 Kf8 23.Bc3+–) 20...Be1+/– 21.Re1 (21.Qe1?! Ra7+=) 21...Rb8 22.Nb6 Qc6 23.Ba6 Nf5? (better is 23...Rb6 24.cb6 Qb6 25.Ba3 Kf7+–) 24.Bb5 (24.Bb5 Rb6 25.cb6 Qb6 26.Ba3 Kf7 27.Bc5 Nd4 28.Bd4 (28.Bb6?! Ne2 29.Be2 Rb8+–) 28...Qd4 29.Qe6 Kg6 30.Re3+–) 1–0. Fournier,Frederic – bodyboarder, Active, 2007.

    7.d3 d4 8.ed4 Nd4 9.Nd4 Bd4 10.Bd4 Qd4 11.c3 Qc5 12.Be2 Nh6 13.0-0 Ng4?? (better is 13...Be6=) 14.Bg4+– 1–0. Fournier,Frederic – Aami, Partie amicale, 0m + 1s, 2009.

    7.d3 Nge7 8.c4 d4 9.ed4 Nd4 (worse is 9...ed4 10.Be2=) 10.Nd4 Bd4 11.Qc2 Qb6 12.Bd4 Qd4 13.Qc3 Qb6 14.Be2 Bf5 15.Nd2 Rd8 16.0-0 0-0 17.Ne4 Be4 (17...Nc6 18.c5 Qa6 19.Nd6-/+) 18.de4= Ng6 19.g3 Ne7 20.Rfd1 f5 (better is 20...Qc7!?=) 21.Rd8+/– Rd8 22.Bf3 (22.Qe5 Nc6 23.Qe6 Kh8 24.ef5 Rf8+–) 22...Rd7? (22...Qd4 23.Qd4 ed4 24.ef5=) 23.Rd1 (better is 23.Qe5 fe4 24.Be4+/–) 23...Rd1= 24.Bd1 Qf6 25.Bc2 g6 26.ef5 Nf5 27.Bf5 (better is 27.Qa5!?+/–) 27...Qf5= (worse is 27...gf5 28.Qa5+/–) 28.c5 e4 29.Qc4 Kg7 30.Qd4 Kf7 31.Qc4 Kg7 32.Qd4 Kf7 33.Qc4 Kg7 ½–½. Fournier,Frederic – leonedilernia (1630), Active, 2008.

    7.d3 Nge7 8.d4 ed4 9.ed4 Bd6 10.Bd3 Bf5 11.Nc3 Qd7 12.Bf5 Nf5 (12...Qf5!? 13.0-0 0-0=) 13.Nd5+= 0-0 14.Qd3 Rfe8 15.Kf1 Nh6 (15...Rac8 16.c4+=) 16.g3 Qf5 (better 16...Nf7!?+=) 17.Qf5+/- Nf5 18.Re1 Re1 19.Ke1 Rd8 (19...Na5 20.Nd2+/-) 20.c4 Bf8 21.g4 Nh6 22.Ne3 Re8 23.Kd2 Na5 24.Rb1 Re4 25.Bc3 b6 26.Ba5 ba5 27.c5 Ng4 28.Ng4 Rg4 29.Rb7 Re4 30.Ra7 g5 31.c6 Bd6 32.Rd7 Bf4 33.Kd3 Re8 34.d5 Rc8 35.Nd4 Bh2 36.Nf5 h5 (36...Rb8 37.d6 Rb3 38.Kc4 Rb1+-) 37.Ne7 Kf8 38.Nc8 Bg1 39.Nd6 Bf2 40.c7 (40.c7 Bb6 41.c8Q Bd8 42.Qd8) 1-0. ADLAI - Pepperoni23, internet, 2021.

    7.d4 Qb6 8.Ra2 ed4 9.ed4 Qa5 10.Bc3 Bb4 11.Bb4 Nb4 12.Qd2 Nc6 0–1. WallyVlooi – Ddddale, playchess.de, 2002.

    7.d4 ed4 8.Nd4 Nge7 9.Be2 0-0 10.0-0 Bd4 11.Bd4 Be6 12.Nc3 Nf5 13.Re1 Re8 14.Bd3 Qa5 15.Nb5 Nfd4 16.Nd4 (16.ed4 Re7=) 16...Nd4 17.ed4 Bf7 18.Qb1 Bg6 19.Bg6 hg6 20.Qb4 Re1 21.Re1 Qb4 22.ab4 b6 23.Ra1 a5 24.Ra4 Kf7 25.Kf1 Ke6 26.Ke2 g5 27.ba5 ba5 28.h3 Kd6 29.Kd3 Kc6 30.c4 dc4 31.Kc4 Ra7 32.d5 Kd6 33.Kd4 Ra8 34.g3 Ra7 35.h4 g4 36.Ke4 Kc5 37.h5 Ra8 38.Kf5 Kd5 39.Rg4 a4 (39...Ra7 40.Ra4=) 40.Rg7+= a3 41.h6 (41.Rd7 Kc4 42.Rd1 Ra5 43.Kf6 Rh5=) 41...a2 42.Rd7 Kc4 43.Rd1 a1Q 44.Ra1 Ra1 ½–½. Fournier,Frederic (2310) – Toenisson,Priit (2575), Queenalice.com (AUTO–ELITE–892), 2012.

    7.d4 Bd6 8.Nc3 Nge7 9.Be2 0-0 (9...e4 10.Nd2=+) 10.0-0 (10.de5 Be5 11.0-0 Qa5=) 10...Be6 11.e4 de4 12.Ne4 ed4 13.Nd6 Qd6 14.Nd4 Nd4 15.Qd4 Qd4 16.Bd4 Rfd8 17.c3 Nc6 18.Bf3 Nd4 19.cd4 Rd4 20.Bb7 Rb8 21.Bf3 Rb2 22.g3 (22.Rfe1 Kf7=) 22...Rdd2=+ 23.a4 Rbc2 (23...Bh3 24.Bg2 Bg2 25.Kg2-/+) 24.a5 Bc4 (24...g5 25.Rae1 Bc4 26.Re8 Kf7 27.Rfe1=) 25.Rfc1= Rf2?? (better 25...f5=) 26.Bb7?? White prepares a6 (better 26.Be4!? Rc1 27.Rc1+-) 26...Rh2?? (26...f5 27.Rc2 Rc2-/+) 27.Rc2?? (27.Be4 Rc1 28.Rc1+/-) 27...Rc2-+ 28.Ra4 (28.Rd1 Ra2 29.Rc1 Be6-/+) 28...Kf8 29.a6 (29.Be4 Rc1 30.Kf2 Bb5-+) 29...Ke7 30.Rb4 (30.Be4 Rc1 31.Kf2 h6-+) 30...Kd6 31.Bf3 Ba6 (31...f5 32.Ba8-+) 32.Ra4 Be2 33.Ra7?? (better 33.Be2 Re2 34.Ra6 Ke7 35.Ra7 Kf8 36.Rd7-+) 33...Bf3 34.Rg7 h5 0-1. black_bishop_88 (2510) - KrokerMan (2450), lichess.org, 2020. (=1.a3 e5 2.b4 f6 3.Bb2 c5 4.bc5 Bc5 5.e3 d5 6.Nf3 Nc6)

    7.d4 Bd6 8.c4 dc4 9.Bc4 Bg4 10.h3 Bh5 11.g4 Bg6 12.d5 Nce7 13.Qa4 Kf8 14.0-0 Be8 (14...Qb6!? 15.Bc3 Be4=+) 15.Qb3= b6 16.Nbd2 Nh6 17.Ne4 Nf7 18.Nh4 (18.Rfd1 Kg8+=) 18...g5 (18...h5 19.g5 fg5 20.Ng2=+) 19.Nf5 (19.Ng2!? Kg7 20.f4 gf4 21.ef4+/- (21.Nd6?! Qd6 22.a4 fe3=)) 19...Nf5= 20.gf5 Kg7 21.Qd1 h5 22.Kh1 Nh6 (22...b5 23.Bd3=) 23.Rg1 (better 23.f4!? Nf7 24.fg5 Ng5 25.Ng5 fg5 26.f6 Kf7 27.Be2+/-) 23...Nf5= 24.Qf3 Nh4 25.Qe2 Bd7?? (25...Bg6!? 26.Nd6 Qd6=+) 26.f4 (better 26.Nd6!? Bh3 27.Ne4+-) 26...Bh3+= (26...ef4?? 27.Rg5 (27.Nd6?! Bg4 28.hg4 Qd6 29.gh5 f3+-) 27...Ng6 28.Qc2+- (28.Nd6 Bh3 29.Bd3 Qd6 30.Rg6 Kf7 31.Rf6 Qf6 32.Bf6 Kf6+-; worse 28.Bf6 Qf6 29.Nf6 Kf6+-)) 27.fg5 (worse 27.Nd6 Bg4 (worse 27...Qd6 28.fe5 Qc7 29.Qf2+/-) 28.Qe1 Nf3-/+) 27...f5 (better 27...Bg4!? 28.gf6 Kf7+/-) 28.Nd6+- Qd6 29.Qh2 Nf3 30.Qh3 Ng1 31.Qh2 (better 31.Qf5 Rae8 32.Rg1+-) 31...Nf3+= 32.Qg3 Rac8 33.Bb3 Kg6 34.Qf3 Qc5?? (34...Rhf8!?+/-) 35.Qg3 (better 35.Be5 Rce8 36.Bd4+- (36.Bh8?! Re3 37.Qf4 Rh3 38.Kg2 Rb3+-)) 35...Rhe8 36.Rc1?? (36.Be5 Qe7 37.Bd4 Qg5 38.Qg5 Kg5 39.Rg1 Kh6+-) 36...Qc1?? (better 36...Qb5 37.Rc8 Rc8 38.Qe5 Qf1 39.Kh2 Qf2 40.Kh3 Qf3 41.Qg3 Qh1 42.Qh2 Qf3 43.Qg3 Qh1 44.Qh2 Qf3 45.Qg3=) 37.Bc1+- Rc1 38.Kg2 Rc3? (better 38...Rb1 39.d6 Rb2 40.Kh3 Rd2+-) 39.Ba4 Re7 40.Bc6 (better 40.d6!? Re6 41.Bd7 Kf7+-) 40...f4? (40...Ra3 41.d6 Re6 42.Bd7+-) 41.Qh3?? (41.d6 Re6 (41...fg3 42.de7 Re3 43.e8Q Kg5 44.Qg8 Kf6 45.Qf8 Kg6 46.Be8 Kg5 47.Bd7 Re2 48.Kg3 Re3 49.Kf2 Ra3 50.Qa3 Kg6 51.Be8 Kf5 52.Qf3 Ke6 53.Qc6 Ke7 54.Qd7 Kf6 55.Qd6 Kf5 56.Qg6 Kf4 57.Bd7 a5 58.Qf5) 42.Qf3 Re3+-) 41...Re3? (41...Rc2 42.Kf1 Kg5+-) 42.Qc8 f3? (42...Rg7 43.Qh8 Rg3 44.Kh2 Rg5+-) 43.Kf2 e4 (43...Rc3 44.d6 Rc2 45.Ke3 Rc3 46.Kd2 Rc6 47.Qc6 Re6+-) 44.Ke3 f2 45.Kf2 (45.Qg8 Rg7 46.Be8 Kf5 47.Qf8 Ke5 48.Qg7 Kd5 49.Qd4 Ke6 50.Ke4 Ke7 51.Qd7 Kf8 52.Qf7) 45...e3 46.Ke2 Kg5 47.Qg8 (47.Qd8 Kf6 48.d6 Kg6 49.de7 Kf5 50.e8Q Kg4 51.Qg6 Kf4 52.Qdd6) 47...Kf6 48.Qf8 Ke5 49.Qe7 (49.Ke3 Kd6 50.Kd4 Kc7 51.Qe7 Kc8 52.Qd7 Kb8 53.Qd8) 49...Kd4 (49...Kf5 50.d6 h4 51.Kf3 Kg6 52.Be4 Kh5 53.Qf7 Kg5 54.Qg6) 50.Qh7 (50.Qe3 Kc4 51.Kd2 h4 52.Qc3) 50...Kc4 (50...Kc3 51.Qd3 Kb2 52.Kd1 e2 53.Qe2 Ka3 54.Kc2 b5 55.Qb5 h4 56.Qb3) 51.Qh5 (51.Qc2 Kd4 52.Qb2 Ke4 53.Qf6 h4 54.d6) 51...Kb3 52.Qf3 (52.d6 a6 53.Qd5 Kb2 54.Qd4 Ka3 55.Qc3 Ka2 56.Bd5 Kb1 57.Qa3 Kc2 58.Be4) 52...Ka2 (52...Kc3 53.Qe3 Kb2 54.Qd2 Kb3 55.Kd3 Ka3 56.Kc3 b5 57.Qb2 Ka4 58.Qb4) 53.Qe3 Kb1 (53...b5 54.Kd1 Kb2 55.Bb5 a5 56.Bc4 a4 57.Qc1) 54.Qd4 (54.Qb3 Ka1 55.d6 a6 56.Be4 b5 57.Qb1) 54...Kc2 55.Qa4 (55.Ba4 Kb1 56.Qd1 Kb2 57.Qc2 Ka1 58.Bb3 a6 59.Qc1) 55...Kb1 (55...Kb2 56.Kd2 Ka1 57.Qc2 a6 58.Kc1 b5 59.Qb2) 56.Qa7 (56.Qb3 Ka1 57.d6 a6 58.Be4 b5 59.Qb1) 56...Ka1 (56...b5 57.Kd3 Kb2 58.Qd4 Ka3 59.Kc3 Ka2 60.Qf2 Ka3 61.Qa7) 57.Qb6 Ka2 58.d6 (58.Kd3 Ka3 59.Kc2 Ka2 60.Qa5) 58...Ka1 59.d7 (59.Kd1 Ka2 60.Kc1 Ka3 61.Qb2) 59...Ka2 60.d8Q Ka1 61.a4 (61.Qf6 Ka2 62.Qbb2) 61...Ka2 62.a5 z (62.Bd5 Ka3 63.Qb3) 62...Ka1 63.a6 (63.Qf6 Ka2 64.Qbb2) 63...Ka2 64.a7 Ka3 65.a8Q 1-0. cipiripi (2355) - agnivo (2460), Rated Bullet game, lichess.org, 2021.

    7.d4 Bd6 8.c4 Nge7 9.de5 fe5 10.cd5 +=.

    7.d4 Bd6 8.de5 fe5 9.Be2 Nf6=+ 10.0-0 0-0 (10...Bg4 11.Nc3 e4 12.Nd4 Be2 13.Nce2=) 11.Nc3 (11.c4 Be6=) 11...Be6 12.Ng5 Qd7 13.Ne6 Qe6 14.Nd5 Qd5 15.Qd5 Nd5 16.Bc4 Nce7 17.e4 Rac8 18.Bb3 (worse 18.Bd5 Nd5 19.ed5 Rc2-/+) 18...Rfd8 19.Rad1 (worse 19.Bd5 Nd5 20.ed5 Rc2-/+) 19...Kf8 20.ed5 (20.Bd5?! Rc2 21.Bc1 Nd5 22.Rd5 Bc7=) 20...Nf5 (20...b5 21.Rfe1 a5 22.Rd2+/- (22.Re5 a4 23.Re2 ab3 24.cb3 Rc5-/+)) 21.Rfe1+- Nd4 22.Bd4 ed4 23.Rd4 Be7 (better 23...Ba3!? 24.Rf4 Kg8+/-) 24.Rf4 Bf6 25.a4 Rd6 26.Re6 (26.c4!? g6+-) 26...Re6 27.de6 Ke7 28.g3 Rd8 29.Kg2 h6 30.h4 Rd2 31.h5 Kd6 32.Rb4 Bd4? (better 32...b6+-) 33.Rb7 Bf2 (33...Rf2 34.Kh3 Kc6 35.Rd7+-) 34.Kh3 (34.Rd7!? Kc6 35.Rd2 Bc5+-) 34...Bb6 (34...Re2+-) 35.Rd7 Ke5 (35...Kc6 36.Rd2 Bc5 37.Rd7+-) 36.Rd2 Kf5 37.Re2 (37.e7 Kf6 38.e8Q Ba5 39.Qe6 Kg5 40.Rd5) 37...Kf6 38.e7 (38.e7 Be3 39.e8Q g5 40.Qf7 Ke5 41.Qe6 Kd4 42.Qe3) 1-0. black_bishop_88 (2545) - Valentun_Hulka (2455), lichess.org, 2020. (=1.a3 d5 2.b4 c5 3.bc5 e5 4.Bb2 Nc6 5.Nf3 Bc5 6.e3 f6)

    7.Be2 Be6 8.0-0 Nge7 9.d3 Qd7 10.Nbd2 0-0-0 (10...0-0 11.c4+=) 11.Nb3 g5?? (better is 11...Bd6=) 12.Nc5+– Qd6 13.Nb3 h5 14.h3 (better is 14.Nfd2!? h4+–) 14...g4 15.Nh4 Nf5? (better is 15...gh3 16.g3 Rdg8+–) 16.Nf5 Bf5 17.h4 Ne7 18.g3 Ng6 19.d4 ed4 (19...Qc6 20.Rc1+–) 20.Nd4 Be4 (20...Bd7+–) 21.f3 (better is 21.Nb5 Qe7 22.Na7 Kd7 23.Nb5+–) 21...gf3 (better is 21...Qg3 22.Kh1 Nh4–+) 22.Bf3?? (22.Kh2 fe2 23.Qe2 Nh4 24.Nb5+=) 22...Bf3?? (better is 22...Qg3 23.Kh1 Qh4 24.Kg1 Nf4–+) 23.Qf3+– (23.Nf3?! Qg3 24.Kh1 Nh4=) 23...Ne5 24.Qf6 Qf6 25.Rf6 Rhg8 (25...Nc4 26.Rb1+–) 26.Kg2 (26.Ne6 Nc4 27.Nd8 Kd8+–) 26...Rg4 (26...Nc4 27.Bc1 Rdf8 28.Rh6+–) 27.Rf4 (27.Nf5!? Re4+–) 27...Rg6 (27...Nc4 28.Bc1 Rdg8 29.Ne2+–) 28.Nf3 Rdg8 (28...Nf3 29.Rf3 Rc6+–) 29.Ne5 Rg3 30.Kf2 Rg2 31.Ke1 Rc2 32.Kd1 Rg1 (32...Rg1 33.Kc2 Rg2 34.Kb3 Kc7 35.Rf7 Kd6+–). Fournier,Frederic (1805) – janado (1710), Active, 2005.

    7.Be2 Nge7 8.0-0 0-0 9.c4 Qd6?? (9...e4!? 10.Nd4 Bd4 11.Bd4 Nd4 12.ed4 dc4+=) 10.cd5 (better is 10.d4 Bb6 11.c5 Bc5 12.dc5 Qc5 13.Nc3+–) 10...Nd5= 11.Nc3 Nc3 12.Bc3 Bg4 13.d4 ed4 14.Nd4 Be2 15.Qe2 Nd4 (15...Bd4 16.Qc4 Kh8 17.Bd4=) 16.Bd4 (16.ed4!? Bb6 17.Bb4+/–) 16...Bd4 17.Rfd1 Qe5 18.Rd4 Rad8 19.Rad1 Rd4 20.Rd4 Re8 21.Qc4 Kh8 22.g3 Qa5 23.a4 h6 24.Rd7 b6 (24...Qb6!?+=) 25.Qf7+/– Rg8 26.Ra7 Qb4 27.Qb7 Qb1 28.Kg2 h5 (28...Qd3+–) 29.a5 b5 30.a6 (better is 30.Qd5 g5 31.e4+–) 30...b4?? (30...h4+–) 31.Ra8 Ra8 32.Qa8 Kh7 33.Qb7 b3 (33...h4 34.a7 (34.gh4?! b3+–) 34...Qf5 35.e4 h3 36.Kf1+–) 34.a7 b2 (34...h4 35.a8Q h3 36.Kh3+–) 35.a8Q Qc1 36.Qe4 g6 37.Qab7 Kh6 38.Qf4 1–0. Fournier,Frederic (1955) – Karpitov (1755), Active ajedrez21.com, 2005.

    7.Be2 Nge7 8.0-0 e4 9.Ne1-/+.

    7.Be2 Nge7 8.0-0 Be6 9.c4 d4 (9...dc4!? 10.Nc3 Nd5-/+) 10.ed4=+ Nd4 11.Bd4 Bd4 12.Nd4 Qd4 13.Nc3 0-0-0 (13...0-0 14.Qb3=+) 14.Rb1 Qd2 (14...Bc4 15.Bc4 Qc4 16.Rb4=+) 15.Qb3 Rd7? (15...b6!?=) 16.Bf3 (16.Rfd1 Qf4 17.Rd7 Kd7 18.Qb7 Ke8+-) 16...Kd8 (16...b6 17.Rfd1 Qh6 18.Nb5+-) 17.Rfd1+/- Qf4 18.Qb7 Ke8?? (18...Qc4 19.Qa8 Nc8+-) 19.Qb8+- Kf7 20.Qh8 Qc4 (20...Rd1 21.Bd1 Bc4 22.Ba4+-) 21.Rd7 (21.Bh5 g6 22.Qh7 Kf8 23.Qh6 Kg8 24.Rb8 Nc8 25.Qg6 Kh8 26.Qf6 Kg8 27.Rc8 Qc8 28.Qe6 Rf7 29.Qf7 Kh8 30.Rd6 Qf8 31.Qf8 Kh7 32.Bg6) 21...Bd7 22.Ne4 (22.Bh5 g6 23.Qh7 Kf8+-) 22...Nf5 (22...Qc2 23.Rd1 Kg6 24.Rd7+-) 23.Qh7 (23.Bh5 Ke7 24.Ng3 Nd4 25.Qg7 Kd6 26.Ne4 Kc7 27.Nf6 Qc6 28.Nd7 Qd7 29.Qe5 Qd6 30.Qa5 Qb6 31.Rb6 ab6 32.Qe5 Kb7 33.Qd4 Kc6 34.Be8 Kc7 35.Qd7 Kb8 36.Bf7 h6 37.Bd5 b5 38.Qb7) 23...Nd4 (23...Ke7+-) 24.Nd6 (24.Nd6 Ke7 25.Nc4+-) 1-0. black_bishop_88 (2565) - manitodeplomo (2545), lichess.org, 2020. (=1.a3 d5 2.b4 e5 3.Bb2 f6 4.e3 c5 5.bc5 Bc5 6.Nf3 Nc6)

    7.Be2 Bf5 8.0-0= Qb6 9.Ra2 0-0-0 10.d4 (10.Nc3 d4 11.Na4 Qa5=) 10...ed4 11.ed4 Bd6 12.c4 dc4 13.Nbd2 Na5 (13...Nge7 14.Nc4 Qc7 15.Bd3+=) 14.Bc3+/– Be6? (better is 14...Ne7 15.Rb2 Qa6+/–) 15.Rb2+– Qa6 (15...Qc7 16.Qa4 Nc6 17.Bc4+–) 16.Ba5 Qa5 17.Bc4 Bc4 (17...Bd7 18.Qb3 Qb6 19.Qa2+–) 18.Nc4 Qh5?? (18...Qa6 19.Qc2 Bc7+–) 19.Qa4 Kb8 (19...a6+–) 20.Qc6 Ne7 (20...b5 21.Nd6 Rd6 22.Qd6 Ka8 23.Qd8 Kb7 24.Rc1 Qh2 25.Kh2 Ka6 26.Rc6 Kb7 27.Qc8) 21.Qb7 1–0. Pamieci Krzysztofa P – napohybel, internet, 2016.

    7.Be2 Bf5 8.0-0 Nge7 9.d3 Qc7 10.Nc3 0-0 (10...a6 11.Nd5 Nd5 12.e4=+) 11.d4 ed4 12.ed4 Bd6 (12...Bb6 13.Nb5 Qd7 14.c4=) 13.Nb5 Qd8 14.c4 Be4 15.Nd2 a6 (15...Bf5 16.Nd6 Qd6 17.Re1+=) 16.Nd6+/- Qd6 17.Ne4 de4 18.d5 Ne5 19.a4 N7g6? (better 19...N5g6!?+/-) 20.Ba3+- Qd7 21.Bf8 Rf8 22.g3 (22.Qd4 Qf5+-) 22...f5 23.d6 Rf6 (23...Qc6+-) 24.Qd5 Kh8 25.c5 h6 (25...f4 26.Rfb1 (26.Qe4?! f3 27.Rfe1 fe2+/-) 26...Qf5 27.Kh1 (27.Qb7 fg3 28.fg3 Qf2 29.Kh1 Qe2=+) 27...fg3 28.fg3+-) 26.Rab1 Nc6 27.Rb6 f4 (27...Nd8+-) 28.Qe4 Nce5 (28...Nd8+-) 29.Rb7 Qe6 30.Bh5 (30.Rd1 fg3 31.hg3 Qc8+-) 30...f3 (30...Qh3 31.Bg6 Ng6 32.Qe8 Kh7 33.Qd7 Qd7 34.Rd7+-) 31.Bg6 Rg6 32.d7! (32.d7 Nd7 33.Qe6 Re6 34.Rd7+-) 1-0. ADLAI – Stverty, internet, 2021.

    6.Nf3 Ne7

    7.c4 0-0 8.Nc3 (8.d4 ed4 9.Bd4 Bd4 10.Nd4 Nbc6=) 8...d4 9.Ne4 b6 10.ed4 Bd4 11.Nd4 ed4 12.Bd3 (12.Be2 f5 13.Ng3 f4=) 12...Nbc6 (12...f5 13.Ng5=) 13.f4 (13.0-0 Ne5 14.Qc2 Be6=) 13...Bf5 (13...f5 14.Ng3=) 14.0-0 Rc8 15.Qa4 (15.Rc1 Na5=) 15...Rc7 (15...Re8 16.Qb5 Qd7 17.Rae1=) 16.Rfe1 (16.Qb5 Be4 17.Be4 f5=) 16...Re8 (16...Ng6 17.g3=) 17.Qb5 (17.c5 Kf8+=) 17...Be4 (17...Bg6 18.Re2=) 18.Re4 Ng6 (18...Rc8 19.Re6+=) 19.Rae1 (19.Qd5 Kh8 20.Rae1 Nce7+/–) 19...Re4 20.Be4 Nge7 (20...Nce7 21.Bg6 hg6 22.Re4+/–) 21.Rc1 (21.Qh5 h6+/–) 21...g6 (21...Qd7 22.c5+=) 22.c5+/– bc5 (22...Na5 23.cb6 Rc1 24.Bc1 ab6 25.Bb2+/–) 23.Rc5 Kf7?? (better is 23...Qd6+/–) 24.Bc6+– (24.Rc6?! Nc6 25.Bc6 Qe7 26.Qd5 Kg7+–) 24...Nc6 (24...Qd6 25.Be8 Kg7 26.Rc7 Qc7 27.Qd7 (worse is 27.Bd4 Qc1 28.Qf1 Qd2+–) 27...Qd7 28.Bd7+–) 25.Rc6 Re7 (25...Rd7+–) 26.Qc4 Kg7 27.Bd4 Rf7 (27...Re1 28.Kf2 Rc1 29.Bc3+–) 28.g4 Kf8 (28...Qe8 29.Bf6! Rf6 30.Rc7 Rf7 31.Qc3 Kg8+–) 29.Rc8 Rd7 30.Bf6 Qe8 (30...Rd2 31.Bd8 Rd1 32.Kf2 Rd2 33.Ke1 Rd8 34.Rd8 Kg7 35.g5 h6 36.Qc7) 31.Re8 Ke8 32.Qg8 1–0. Janek – Alethe, internet, 2017.

    7.c4 Qa5 8.Nc3 0-0 9.cd5 Nd5?? (better is 9...Rd8+=) 10.Nd5 Nc6 11.Nc3 (11.Bc4!? Be6+–) 11...Be6 12.Be2 Rad8 13.0-0 Bf5 (13...Be7 14.Qc2+–) 14.Qa4 (better is 14.Qb3!? Kh8+–) 14...Qb6 (14...Qa4 15.Na4 Bd6+–) 15.Qb5 (15.Qb5 Qb5 16.Bb5+–) 1–0. Fournier,Frederic (1770) – didy, Active, 2007.

    7.c4 Qb6 8.Nc3=.

    7.c4 Nbc6 8.Be2 d4 9.ed4 Nd4 10.Nd4 Bd4 11.Bd4 Qd4 12.Nc3 Bd7 13.0-0 a6 14.Qc2 0-0 15.d3 Bc6-/+ 16.Na2 a5 17.Rab1 Ng6 18.g3=+ e4 19.Qc3 Qc3 20.Nc3 ed3 21.Bd3 Ne5 22.Be2 Bf3 23.Rfc1 Rac8 24.Bf3 Nf3 25.Kg2 Nd2 26.Rb7 Rc4 27.Ne2 Rc1 28.Nc1 ½–½. hal1958 – marceli, playchess.de, 2003.

    7.c4 Be6 8.cd5 Nd5 9.Nc3 Nc3 10.Bc3 0-0 11.Be2 Nc6 12.0-0 Qd7 13.Qc2 b6 14.Rfd1 Qf7 15.Qb2 Rad8 16.d4 ed4 17.Nd4 Nd4 18.Bd4 Bd4 19.Rd4 Qg6 20.Rad1 Rc8 21.Bf3 Qc2 22.Qc2 Rc2 23.Bd5 Bd5 24.Rd5 Rfc8 25.g3 R8c7 26.Rd8 Kf7 27.R8d7 Ke6 28.Rc7 Rc7 29.Rd4 Rc3 30.a4 Rc5 31.Kf1 Rd5 32.Rc4 b5 (32...Kd6!?=) 33.ab5+= Rb5 34.Ra4 (better is 34.Rc7!?+=) 34...a5+= 35.Ke2 Kd6 36.Kd3 Kc6 37.Kc4 Kb6 38.h4 (38.Kc3!?+=) 38...Rb2-/+ 39.f4 Rg2 40.Ra3 Rg3 41.Rb3 Ka6 42.Kc5 a4 43.Rb6 Ka7 44.Rb4 Re3 45.Ra4 Kb7 46.Rd4 Re7 47.Rb4 Kc7 48.Kd5 Kd7 49.Rb7 Ke8 50.Re7 (better is 50.Rb6-/+) 50...Ke7–+ 51.f5 g6 52.fg6 hg6 53.Ke4 Ke6 54.Kf4 Kf7 55.Ke4 Kg7 56.Kf4 Kh6 57.Kg4 f5 (57...f5 58.Kf4 Kh5–+) 0–1. Fournier,Frederic (1670) – EMIRO_D_QARAT, Partie evaluee, 3m + 0s, 2008.

    7.c4 Be6 8.cd5 Nd5 9.Be2 0-0 10.0-0 Nc6 11.d4 ed4 12.Nd4 Nd4 13.Bd4 Qb6 14.Bc5 Qc5 15.Nd2 Nc3 16.Qe1 Ne2 17.Qe2 Rac8 18.Rfd1 Qf5 19.Nf3 Qg4 20.Nd4 Qe2 21.Ne2 Bg4 22.f3 Bh5 23.Rac1 Rc1 24.Rc1 Rd8 25.Rc7 Rb8 26.Nd4 Bf7 27.Nb5 Bd5 28.e4 Bc6 29.Nd6 g6 30.Nc8 a5 31.Kf2 Kf8 32.Rh7 b5 33.Ne7 Be8 34.Ng6 (better is 34.Nd5 f5 35.e5+–) 34...Kg8+= 35.Ra7 Bg6 36.Ra5 Bf7 37.h4 Bc4 38.Ra7 Rd8 39.g4 Rd1 (39...Rd2!? 40.Kg3 Be2+=) 40.g5+/– fg5 41.hg5 Rf1 (41...Rd2!? 42.Kg3 Rd3+=) 42.Ke3+/– Re1 43.Kf4 Ra1 (better is 43...Be2!?+/–) 44.Ke5+– b4 45.Rc7 b3? (better is 45...ba3 46.Kf6 Be6+–) 46.Kf6 (46.Rc4?! b2 47.Kf6 Rc1+=) 46...Ra3 (46...Bf7 47.Rf7 Rf1+–) 47.Rc8 Kh7 48.g6 Kh6 49.Rh8 (49.Rc4?! b2 50.Rb4 Rf3 51.Ke5 Rf2+/–) 1–0. Fournier,Frederic (2000) – Minideep (1820), echecsemail.com, 2005.

    7.d3 0-0 8.Be2 Kh8 (8...Qb6 9.Ra2+=) 9.Nbd2 Nbc6 10.0-0 Qb6 11.Rb1 Bd7? (better is 11...Qc7!?=) 12.Be5 Qd8 13.Bb2 Nf5 14.Nb3 Bd6 15.h3 Qe7 16.Nbd4 Nfd4 17.Nd4 Nd4 18.Bd4 b6 (18...Bc6!?+=) 19.Bf3+/– Bc6 20.c4 dc4?? (better is 20...Qe6+/–) 21.Bc6+– Rac8 22.Bb7 (better is 22.Be4 f5 23.Bf3+–) 22...Qb7= 23.dc4 Ba3 24.Qb3 Bd6 25.Rfc1 Bc5 26.Bc5 Rc5 27.Rd1 Rg5 28.g3 Re8 29.c5 (better is 29.Rd5=) 29...b5?? (better is 29...Rc5 30.Rd6 b5+=) 30.Qb5+– Qe4 31.Rd4 Qa8 32.Qb7 Qb7 33.Rb7 h6?? (33...Rc5 34.Ra7 h5 35.Rdd7+–) 34.Ra7 (better is 34.c6 Rc5 35.c7+–) 34...Rc5 35.Rdd7 g5? (better is 35...Rg8+–) 36.Rh7 Kg8 37.Rh6 Rd8 (37...Re6 38.Rhh7+–) 38.Rf6 Rd1 39.Kg2 Rc2 (39...Re5 40.Rc6 Rd8 41.Rcc7+–) 40.Rg6 Kf8 41.Rg5 Rdd2 42.Rf5 Ke8 43.h4 Kd8 (43...Rd7 44.Ra8 Ke7+–) 44.Rf8 1–0. Fournier,Frederic – ducky, Active, 2006.

    7.d4 ed4 8.ed4 Bb6 9.g3 (9.Bd3 0-0=) 9...0-0 Black castles and improves king safety 10.Bg2 Nf5 (10...Ba5 11.Bc3=) 11.0-0= White castles and improves king safety 11...Re8 12.Nc3 Nc6 Black threatens to win material: Nc6xd4 13.Ne2 Be6 (13...Ba5 14.Nd2=) 14.Nf4 Bf7 15.Qd2 (15.Qd3!? should be considered 15...g6 16.Rab1=) 15...g5 16.g4 (16.Qd3!? must be considered 16...Nh6 17.Ne2+=) 16...Nd6-/+ (16...gf4?! 17.gf5 Qc7 18.Bc3+=) 17.Nh5 (17.Nd3!?-/+) 17...Nc4 18.Qc1 Bh5 19.gh5 Nb2 (better is 19...g4!? 20.Nh4 Bd4 21.Bd4 Nd4+=) 20.Qb2-/+ Qd6 (20...g4 21.Nh4 Nd4 22.Rad1 Ne2 23.Kh1-/+) 21.Rfe1 (21.Qb5 g4 22.Nh4 Nd4 23.Qd5 Qd5 24.Bd5 Kf8 25.Bb7 Rab8+= (worse is 25...Nc2 26.Ba8 Na1 27.Bc6=)) 21...Re7 (better is 21...g4!? 22.Nh4 Nd4-/+) 22.Re7= Ne7 23.Re1 Ba5 (23...Re8 24.Nd2=) 24.c3 (better is 24.Qb7!? Re8 25.Qb5+/–) 24...Rb8 (24...Qd7 25.Nd2=) 25.Qc1 (25.Bh3 Bd8=) 25...Bc7 (25...Rc8 26.Re3 Nf5 27.Bh3+=) 26.Bh3= Kf7 (26...Nc6 27.h6=) 27.Qc2 Rh8 (27...Kg7=) 28.Re6 White threatens to win material: Re6xd6 (better is 28.h6!?+/–) 28...Qf4+= Black threatens to win material: Qf4xf3 29.Qe2 Nc6?? gives the opponent counterplay (29...Re8 30.Kh1+=) 30.Re3? (better is 30.Qe3+= and White hangs on) 30...g4-/+ 31.Bg4? (better is 31.Qb5 Kg7 32.Bg2 gf3 33.Bf3 Qg5 34.Kf1-/+) 31...Qg4–+ 32.Kf1 Rg8 33.Qd3 (33.Qb5 does not solve anything 33...Qh5 34.Qb7 Qh3 35.Ke1 Qd7–+) 33...Qh5 (better is 33...Bf4 makes it even easier for Black 34.Re1 Qh5–+) 34.c4 (34.Qb5 cannot change destiny 34...Rb8 35.Ne1 Bf4–+) 34...Qg6 (better is 34...Bf4 ends the debate 35.Qe2 Nd4 36.Ne5 Qe5 37.Re5 Ne2 (37...Be5 38.Qh5 Ke6 39.cd5 Kd6 40.Qf7+=; 37...fe5?! 38.Qh5 Kf6 39.cd5–+) 38.Re2 dc4–+) 35.Qg6 hg6 36.cd5 (36.c5 is no salvation 36...Rc8–+) 36...Ne7 37.Nd2 Bh2 38.Nc4 (38.Rb3 doesn't get the bull off the ice 38...b6–+) 38...Nd5 39.Re2 (39.Rh3 does not improve anything 39...Bc7–+) 39...Rc8 40.Kg2 (40.Rc2 is not the saving move 40...Nb6 41.Ne3 Rc2 42.Nc2 Bd6–+) 40...Rc4 (better is 40...Nf4 secures the point 41.Kh2 Rh8 42.Kg1 Ne2 43.Kg2–+) 41.Kh2 Rd4 42.Rc2 Ke6 43.Re2 (43.Rb2 is not much help 43...b6–+) 43...Kf5 44.Kg3 (44.Rb2 does not help much 44...b6 45.Rb1 Rd3–+) 44...Rd3 45.f3 Ra3 46.Re4 (46.Rc2 doesn't get the cat off the tree 46...a5 47.Rb2 b6–+) 46...b5 47.Rh4 (47.Rd4 doesn't change the outcome of the game 47...Nc3 48.Rd7 b4–+) 47...b4 48.Rh6 b3 (48...b3 49.Rh1 b2–+) 0–1. Zytkowiak,M – Jaroszonek,L, Lasker Memorial op–B, 2001. (=1.e3 e5 2.a3 d5 3.b4 c5 4.bc5 Bc5 5.Bb2 f6 6.Nf3 Ne7)

    7.Be2 0-0 8.0-0 Bg4 9.c4 d4 10.h3 Bh5 11.ed4 ed4 12.Nd4?? (better is 12.d3=) 12...Bd4–+ 13.Bh5 Bb2 14.Ra2 Bd4 15.d3 Nbc6 16.Bf3 Qb6 17.Nd2 Ng6 18.Ne4 (18.Bd5 Kh8–+) 18...Nge5 19.a4 Rad8 20.Rd2 Bc3 (20...Qa5 21.Kh1–+) 21.Rc2?? (21.Nc3!? Nf3 22.Qf3+=) 21...Bd4 (21...Rd3!? 22.Qb1 Nf3 23.gf3–+) 22.Rd2 Bc5 (better is 22...Qa5!? 23.Kh1–+) 23.Nc5 Qc5 24.Be4 Rd6 25.Kh1 Rfd8 26.f3?! (26.Qh5 g6 27.Qe2–+) 26...Nc4! 27.Rc2 (27.dc4 Qb4 Double attack (27...Rd2 Pinning; 27...Rd2 Deflection; 27...Qb4 Decoy)) 27...a6 (better is 27...Qd4 28.Rc1 Kh8 29.Qe2–+) 28.Rc4?? (better is 28.Qc1 N6e5 29.dc4+=) 28...Qc4!!–+ 29.Qe2 (29.dc4 Rd4 Double attack (29...Rd1 Pinning; 29...Rd1 Deflection; 29...Rd4 Decoy)) 29...Qd4 (29...Qa4 30.Qb2–+) 30.Rc1 (30.Qa2 Kh8–+) 30...Qe5 31.Qe3 (31.Qa2 Kh8 32.Qa1 Qa5–+) 31...h6 (31...f5 32.Rc5 Qa1 33.Rc1–+) 32.Rc5 (32.f4 Qd4 33.Qg3 Qa4–+) 32...Qg5 (better is 32...Qa1 33.Kh2 Qa4–+) 33.Qg5 (33.Qg5 hg5 34.Kh2–+). Fournier,Frederic (1855) – jorgsaza (1950), Active, 2005.

    6.Nf3 Bg4

    7.Be2 Qb6 8.Ra2 e4 9.d4 Be7 10.Nfd2 =.

    7.Be2 Qb6 8.Bc3 e4 (8...Nc6!?+=) 9.Nd4= Be2 10.Qe2 Ne7 11.0-0 (11.d3 ed3 12.cd3 0-0=) 11...0-0 12.Qh5 (12.f3 Qa6 13.Qf2 Bd4 14.Bd4 Nbc6=) 12...Nd7 13.Nf5 (13.f3 f5=) 13...Nf5 14.Qf5 Qd6 (14...Qc6 15.d4 Bb6 16.Bb4+=) 15.d4 ed3 16.cd3 d4 17.Bd2 (17.ed4!? Bd4 18.Rd1=) 17...Ne5-/+ 18.Re1 (18.Rd1 Rad8-/+) 18...Rac8 (better is 18...g6 19.Qh3 Nd3–+) 19.f4?? (better is 19.ed4 Qd4 20.Bc3 Qd3 21.Re5 Bf2 22.Qf2 fe5 23.Qe1–+) 19...de3–+ 20.Be3 (20.Bc3 Nd3 21.Re2 Rfe8–+) 20...Be3 21.Re3 Qd4 (21...Qb6 22.Qe4 Rc1 23.Kf2 Ng4 24.Ke2 Ne3 25.Qb4–+) 22.Nc3 Qe3 (22...Qe3 23.Kh1 Rc3–+) 0–1. Neumann,Frank – Behnke,Thomas, Mecklenburg VP LM, 1998.

    7.Be2 Qb6 8.Nc3 Ne7 =.

    7.Be2 Nc6 8.Nc3 f5 9.0-0 =.

    7.Be2 Nc6 8.Ne5 Be2 9.Nc6 Qb6 10.Qc1 (10.Qe2? Qb2 11.Nb4 Qa1 (11...Bb4?! 12.Qb5 Kf7 13.Qd5 Kf8 14.0-0+=) 12.Qb5 Kd8–+) 10...Qc6 11.Ke2 Ne7 12.d3 1–0. Fournier,Frederic (1780) – Nikel,Bogdan (2090), ETC PCM–2005–G4, 2005.

    7.h3 Bf3 8.Qf3 Ne7 =.

    7.h3 Bh5 8.g4 Bg6 9.d4 Qb6 10.Bc3 =.

    5.d4 ed4=+

    6.Bb5 Nc6 7.ed4 cb4 8.Qh5 g6 -/+.

    6.Bb5 Bd7 7.Bd3 Qe7 8.Qh5 Qf7 =+.

    6.Bd3 c4 7.Qh5 Ke7 8.Bh7 Nh6 =+.

    6.Bd3 de3 7.Qh5 Ke7 8.Nc3 Be6 =+.

    6.ed4 cb4 7.Bd3 Nh6 8.Ne2 Nc6 =+.

    6.ed4 Qe7 7.Be2 cb4 8.Nf3 Qc7 =. Akman,Ozgur – Yeung,Chun Keung (1740), corr ICCF WSTT/3/06/1, 2006.

    6.Bd4? cd4–+ 7.Qd4 Nc6 8.Qd2 Be6 (8...a5 9.b5 Ne5 10.Nc3–+) 9.Nf3 Bd6 10.Nc3 Be5 (10...Nge7 11.Bb5–+) 11.Rd1 Nge7 12.Bd3 0-0 (12...Rc8 13.0-0–+) 13.Ne2 Rc8 14.h3 (14.b5 Nb8–+) 14...Qc7 (14...Qb6 15.0-0–+) 15.c3 (15.b5 Na5–+) 15...Rfe8 16.Qc2 (16.0-0 a6–+) 16...g6 17.0-0 Kg7 18.Rfe1 (18.b5 Nd8–+) 18...a6 (better is 18...Bd6 19.Nf4 Bd7 20.Qd2–+) 19.a4 (19.Ne5 fe5 20.e4 d4–+) 19...Nf5 (19...Nb4 20.Nfd4 Nc2 21.Ne6 Kf7 22.Nc7 Ne1 23.Bg6 hg6 24.Ne8–+) 20.Rb1 (20.Qd2 Nd6–+) 20...Nd6 (20...Bd6 21.Qd2–+) 21.Red1 b5 (21...Ne7 22.a5–+) 22.Nfd4 Bd4 23.cd4 Nc4 24.ab5 ab5 25.Qc3 Qd6 26.Bc4 Ne7 (26...dc4 27.e4 Bf5 28.d5–+) 27.Bb5 Rc3 28.Nc3 Rb8 29.Rb3 f5 30.Ra1 f4 31.Ra6 Rb6 32.Bf1?? (32.Rba3 fe3 33.fe3–+) 32...Ra6 33.Ba6 Qa6 (33...Qa6 34.b5 Qb6–+) 0–1. Hoebel,Hartmut (2420) – Braakhuis,WFR (2310), corr ICCF EM/M/167, 2001.

    5.Nh3 cb4-/+

    6.f4 ba3!? 7.Na3 Qb6-/+.

    6.f4 b3 7.cb3= Nc6 8.Bb5 Bh3 (8...e4 9.d3=) 9.Qh5+= g6 10.Qh3 Qd7 (better 10...Qd6!?+=) 11.Qd7+- Kd7 12.fe5 fe5?? (better 12...Ke6 13.ef6 Nf6+/-) 13.Be5+- Nge7 (13...Nf6 14.Bf6 Rg8 15.Nc3+-) 14.Bh8 Bh6 15.Bb2 Kd6 16.d4 (better 16.Rf1 Rf8+-) 16...a6 (16...Be3 17.Nc3 Nd4 18.Rd1+-) 17.Bc6 bc6 (17...Nc6 18.e4! de4 19.Nc3+-) 18.Kd2 c5 (18...Nf5 19.Kd3 Re8 20.Re1 Re3 21.Re3 Ne3 22.Bc1+-) 19.Kd3 Nf5 20.Rf1 (better 20.dc5 Kc5 21.g4+-) 20...c4 21.bc4 dc4 22.Ke4 1-0. FeegLood (2495) - meoc (1945), lichess.org, 2016.

    6.f4 b3 7.cb3= Bh3 8.Qh5+= (worse 8.gh3 Nc6=+) 8...g6 9.Qh3 Nc6 10.Bb5 (10.fe5 fe5 11.Qe6 Qe7 12.Qd5 Nf6+/-) 10...Qd7 (10...Qd6 11.fe5 fe5 12.Qg3+=) 11.Qg3 (11.Qd7 Kd7 12.fe5 Ke6 13.ef6 Nf6+/-) 11...Nge7? (better 11...a6!? 12.Be2 Nh6=) 12.fe5+/- fe5 13.Be5 Nf5 14.Qf2 (14.Qf3 Bg7 15.Bg7 Qg7+/-) 14...Rg8 (14...Bg7 15.Bg7 Qg7 16.Ra2+=) 15.0-0 Bg7 (15...a6 16.Bc6 bc6 17.Nc3+/-) 16.Bg7+- Rg7? (16...Qg7 17.Nc3 a6 18.Bc6 bc6 19.e4 de4 20.Ne4+-) 17.Nc3 (17.g4 a6 18.Bc6 Qc6+-) 17...Ke7? (17...Rf7 18.Rae1+-) 18.d4 (18.g4 a6 19.Bc6 Qc6+-) 18...Kd6? (better 18...a6 19.Bd3 Qe6+-) 19.g4 Nh6 (19...Rag8+-) 20.Qf4 Ke7 21.Qf6 Ke8 22.Qf8 1-0. FeegLood (2495) - meoc (1960), lichess.org, 2016.

    4.e3 c6

    5.b5 Bd6 6.bc6 Nc6 7.c4 d4 8.Nf3 de3 9.fe3 Nge7 10.Be2 0-0 (10...e4 11.Nd4=+) 11.0-0 (better 11.Qc2!?=) 11...e4-/+ 12.Nd4 Nd4 (12...Qc7 13.Nc3 Nd4 14.ed4 Bh2 15.Kh1-/+) 13.Bd4 Nc6 (13...Qc7 14.Nc3 Bh2 15.Kh1=+) 14.Bb2 (14.c5 Nd4 15.ed4 Be7=) 14...Bc7 (14...Qc7!? 15.h3 Qf7=+) 15.Nc3= Re8 16.d4 (16.Nd5!?=) 16...ed3=+ 17.Qd3 (17.Bd3!? Ne5 18.Nd5 Nd3 19.Qd3=) 17...Qd3-/+ 18.Bd3 Re3 19.Rad1 (19.Rf3 Rf3 20.gf3 Ne5-/+) 19...Re8 (better 19...Bb6!? 20.c5 Bc5-+) 20.Nd5-/+ Be5 21.Be5 Re5 (worse 21...Ne5 22.Nc7 Bg4 23.Rd2+=; worse 21...fe5 22.Nc7 Bg4 23.Rd2+/-) 22.Bc2 Be6 23.Nc7 Rc8?? (better 23...Rb8 24.Ne6 Re6-/+) 24.Ne6+/- Re6 25.c5?? (better 25.Bf5 Ree8 26.Bc8 Rc8 27.Rd7+/-) 25...Re5 26.Rd7 Rb8 (better 26...Na5!?-/+) 27.Bb3= Kh8 28.Rfd1 (28.Bd5 Rbe8=) 28...h5 (28...Rc5 29.Bd5 h6 30.Rb1-/+) 29.Rc7 (29.Bd5!? h4 30.g3=) 29...Rc5=+ 30.Rdd7 Rg5 31.Rb7 (31.Bc2 a5=+) 31...Rb7 32.Rb7 Nd4 33.Bc4 h4 (33...Ra5!?-/+) 34.Bd3 g6 35.Ra7 Ne6 (35...h3 36.Be4=) 36.h3 (better 36.Kf2!?+=) 36...Nf4=+ 37.Bf1 Nh3 38.Kh2 Nf4 39.a4 Rf5 40.a5 Ne6 (40...Rc5!?=) 41.Bd3+= Rd5 42.Bg6 Nf4 43.Be4 Rd4 44.Bf3 Rd2 45.a6 (45.Rf7 Ra2+/-) 45...Ra2+= 46.Ra8 Kg7 47.a7 h3 48.Rg8 (48.Rd8!? Ra7 49.gh3=) 48...Kg8-/+ 49.a8Q Ra8 50.Ba8 hg2 (worse 50...Ng2 51.Bg2 Kf7 52.Bd5 Kg6 53.Kh3=) 51.Bg2 Kg7 52.Bf3 Ne6 53.Kg3 Ng5 (53...Kg6 54.Bd5 Ng7 55.Be4 Kg5 56.Kf3-/+) 54.Bg4 Kg6 55.Bc8 Kg7 56.Kf4 (56.Bg4!?=) 56...Nf7 57.Kf5?? (57.Be6 Nd6=+) 57...Nh6 (better 57...Nd6 58.Kg4 Nc8-+) 58.Ke6 Nf7 59.Ke7 (59.Kf5!?=) 59...Ng5 (59...Kg6 60.Bd7 Ne5 61.Ba4-/+) 60.Bf5=+ Nf3 61.Be6 (61.Be4 Ne5=+) 61...Nd4 62.Bf5?? (better 62.Bd7-/+) 62...Nf5-+ 63.Ke6 Kg6 64.Kd5 Kg5 65.Ke4 Nh4 66.Ke3 Kg4 67.Kf2 Kf4 68.Kg1 Kg3 69.Kh1 f5 (69...Ng2 70.Kg1 Ne3 71.Kh1 f5 72.Kg1 f4 73.Kh1 f3 74.Kg1 f2 75.Kh1 f1Q) 70.Kg1-+ f4 71.Kf1 f3 72.Kg1 f2 73.Kf1 Nf5 74.Ke2 Kg2 75.Kd3 Ng3 76.Kd4 f1Q 77.Ke5 Qe2 78.Kd6 Qf3 79.Kc7 Qe3 (79...Qd5 80.Kc8 Ne4 81.Kc7 Qd6 82.Kb7 Nc5 83.Kc8 Qc6 84.Kd8 Qd7) 80.Kb7 (80.Kc6 Ne4 81.Kd5 Qd3 82.Ke6 Qd6 83.Kf5 Qd5 84.Kg6 Qe6 85.Kg7 Qe7 86.Kg6 Qf6 87.Kh7 Ng5 88.Kg8 Qf7 89.Kh8 Qf8) 80...Kf3 (80...Qc5 81.Ka6 Nf5 82.Kb7 Nd6 83.Ka6 Qc6 84.Ka5 Qb5) 81.Kc8 (81.Kc7 Ne4 82.Kd8 Nf6 83.Kc7 Qc5 84.Kb7 Nd5 85.Ka8 Qc6 86.Kb8 Qc7 87.Ka8 Nb6) 81...Kf4 (81...Qe7 82.Kb8 Ne4 83.Ka8 Nc5 84.Kb8 Qb7) 82.Kb7 (82.Kd7 Qc5 83.Kd8 Nf5 84.Kd7 Qd6 85.Kc8 Qc6 86.Kd8 Qb7 87.Ke8 Qe7) 82…Qe4 (82...Qe4 83.Kc7 Qc2 84.Kd7 Qc4 85.Kd6 Nf5 86.Kd7 Ke5 87.Ke8 Nd6 88.Ke7 Qc7 89.Kf8 Qf7; 82...Ne4 83.Kc7 Qc5 84.Kd7 Ke5 85.Ke8 Ke6 86.Kd8 Qb6 87.Ke8 Qb8) 0-1. MrKooshaJ (2665) - Bardiya___Daneshvar (2850), Rated Bullet game, lichess.org, 2021.

    5.c3 a5 A) 6.Nf3 Nd7 (6...Bd6 7.Be2 Nh6 8.d3 0-0 9.0-0 Be6+=; 6...Nh6 7.Be2 Bd6 8.d3 0-0 9.0-0 ab4+=; 6...ab4 7.ab4 Ra1 8.Ba1 Bd6 9.Be2 Ne7+=; 6...Bg4 7.h3 Bh5 8.Be2 ab4 9.cb4 Bd6+=) 7.Be2 Bd6 8.d3 Ne7 9.0-0 0-0+=; B) 6.Be2 e4 (6...ab4 7.ab4 Ra1 8.Ba1 Bd6 9.Bh5 g6=; 6...Nh6 7.Nf3 Bd6 8.d3 0-0 9.0-0 b5=; 6...Nd7 7.Nf3 Bd6 8.d3 Ne7 9.0-0 b5+=; 6...Bd6 7.Nf3 Ne7 8.d3 0-0 9.0-0 b5+=) 7.d3 f5 8.de4 fe4 9.Bh5 g6+=; C) 6.d3 Bd6 (6...b5 7.Nf3 Bd6 8.Be2 Ne7 9.0-0 0-0+=; 6...ab4 7.ab4 Ra1 8.Ba1 Bd6 9.Be2 Be6+=; 6...Bf5 7.Nf3 Bd6 8.Nbd2 Ne7 9.Be2 0-0=; 6...Qd7 7.Nd2 Bd6 8.Qh5 Qf7 9.Qf7 Kf7=) 7.Nf3 Ne7 8.Be2 0-0 9.0-0 b5+=; D) 6.d4 Bf5 (6...ed4 7.ed4 Bf5 8.Nf3 Bd6 9.b5 Ne7=; 6...Bd6 7.de5 fe5 8.c4 Nf6 9.c5 Bc7+=; 6...Nh6 7.de5 fe5 8.e4 Be6 9.ed5 cd5=; 6...Nd7 7.b5 Qb6 8.c4 dc4 9.Bc4 cb5=) 7.b5 Nd7 8.c4 Rc8 9.c5 ed4+=; E) 6.b5 Ne7 (6...Be6 7.d4 Nd7 8.Nd2 Ne7 9.de5 Ne5=; 6...Bd6 7.d4 Ne7 8.c4 ed4 9.Bd4 c5=; 6...Bf5 7.d4 Nd7 8.c4 Rc8 9.Nf3 dc4=; 6...Nh6 7.c4 cb5 8.cd5 b4 9.e4 ba3=) 7.d4 Be6 8.de5 fe5 9.Nd2 Ng6=.

    5.c3 Bd6 A) 6.d3 a5 (6...Ne7 7.Qh5 g6 8.Qf3 0-0 9.c4 Be6+=; 6...Bf5 7.Be2 Ne7 8.Nf3 0-0 9.0-0 a5=; 6...Be6 7.Nf3 a5 8.Be2 Ne7 9.0-0 Qc7+=; 6...Nd7 7.Be2 Ne7 8.Nf3 a5 9.0-0 b5+=) 7.Nf3 Ne7 8.Be2 0-0 9.0-0 b5+=; B) 6.Qh5 g6 7.Qe2 Ne7 8.c4 Bf5 9.d4 dc4+=; C) 6.Be2 Ne7 (6...Nh6 7.c4 dc4 8.Bc4 b5 9.Qh5 Ke7=; 6...a5 7.Nf3 Nh6 8.d3 0-0 9.0-0 Qc7+=; 6...Bf5 7.Nf3 Ne7 8.d3 0-0 9.0-0 a5=; 6...Be6 7.Nf3 Ne7 8.0-0 0-0 9.d3 a5+=) 7.d3 0-0 8.Nf3 a5 9.0-0 Qc7+=; D) 6.Nf3 Ne7 (6...Bg4 7.d3 Ne7 8.Be2 0-0 9.0-0 a5+=; 6...a5 7.Be2 Ne7 8.d3 0-0 9.0-0 b5+=; 6...Nh6 7.d3 0-0 8.Be2 Be6 9.0-0 a5+=; 6...Nd7 7.c4 Ne7 8.Nc3 a5 9.cd5 Nd5=) 7.Be2 a5 8.d3 0-0 9.0-0 b5+=; E) 6.c4 Be6 (6...Ne7 7.c5 Bc7 8.Be2 Bf5 9.Nf3 Nd7=; 6...Bf5 7.d4 Ne7 8.de5 Be5 9.Be5 fe5=) 7.c5 Bc7 8.Be2 Ne7 9.Nf3 Nd7=.

    5.c3 Nd7 6.c4 (6.d3; 6.Be2; 6.d4; 6.Nf3) 6...Bd6 (6...a5 7.b5 cb5 8.cd5 b4 9.d4 ba3=; 6...Ne7 7.d4 dc4 8.Bc4 ed4 9.Qd4 b5=; 6...Nb6 7.c5 Nd7 8.d4 Ne7 9.de5 Ne5=; 6...dc4 7.Bc4 a5 8.b5 Nb6 9.Bg8 Rg8=) 7.cd5 cd5 8.Nc3 Ne7 9.Qg4 Kf7 =.

    5.c3 Be6 6.d4 (6.Be2 Bd6 (6...Nd7 7.Nf3 Bd6 8.0-0 Ne7 9.d3 0-0=; 6...Nh6 7.Nf3 Bd6 8.d3 a5 9.0-0 0-0+=; 6...Qc7 7.Nf3 Bd6 8.d3 a5 9.Nbd2 Ne7+=; 6...a5 7.Bh5 g6 8.Be2 Bd6 9.Nf3 Ne7=) 7.Nf3 Ne7 8.d3 0-0 9.0-0 a5+=; 6.d3 a5 (6...Bd6 7.Nf3 Ne7 8.Be2 0-0 9.0-0 a5+=; 6...Nd7 7.Nf3 Bd6 8.Be2 Ne7 9.c4 Qb6=; 6...Nh6 7.Nf3 Bd6 8.c4 0-0 9.c5 Bc7=; 6...f5 7.c4 Nd7 8.Nf3 Bd6 9.Be2 Ngf6=) 7.Nf3 Bd6 8.Be2 Ne7 9.0-0 Qc7+=; 6.Nf3 Nh6 (6...Bd6 7.Be2 Ne7 8.d3 Nd7 9.0-0 0-0=; 6...Nd7 7.Be2 Bd6 8.d3 Ne7 9.c4 Qb6=; 6...Qc7 7.Be2 Bd6 8.d3 Ne7 9.c4 b6+=; 6...Be7 7.Be2 Nh6 8.d4 e4 9.Nfd2 0-0=) 7.Be2 Bd6 8.d3 a5 9.0-0 0-0+=; 6.Bd3 Qc7 (6...Nh6 7.Nf3 Bd6 8.Be2 0-0 9.d3 c5+=; 6...Ne7 7.Ne2 Qd6 8.Bc2 Nd7 9.0-0 Nb6+=; 6...f5 7.Nf3 Bd6 8.Be2 Nd7 9.0-0 Qf6=; 6...e4 7.Bc2 Nd7 8.Ne2 Ne5 9.Nd4 Qd7+=) 7.Nf3 Bd6 8.Bc2 Ne7 9.d3 0-0+=) 6...Nd7 (6...Bd6 7.de5 fe5 8.c4 Nf6 9.Nf3 Nbd7=; 6...e4 7.c4 dc4 8.Nd2 a5 9.b5 f5=) 7.Nd2 Bd6 8.c4 Ne7 9.e4 0-0 +=.

    5.c3 Bf5 A) 6.Be2 Bd6 (6...e4 7.d3 Nd7 8.de4 de4 9.c4 a5=; 6...a5 7.Nf3 Bd6 8.0-0 Ne7 9.d3 0-0=; 6...Nh6 7.d4 Nd7 8.c4 dc4 9.Bc4 Bd6=; 6...Nd7 7.d3 Bd6 8.Nf3 Ne7 9.c4 b6=) 7.Nf3 Ne7 8.d3 0-0 9.0-0 a5=; B) 6.Nf3 Nh6 (6...Bd6 7.c4 Ne7 8.c5 Bc7 9.Be2 0-0=; 6...a5 7.b5 c5 8.c4 d4 9.Nh4 Be6=; 6...Nd7 7.c4 a5 8.b5 Rc8 9.d4 dc4=; 6...Be7 7.c4 a5 8.ba5 Ra5 9.d4 e4=) 7.Be2 Bd6 8.d3 0-0 9.Nbd2 a5=; C) 6.c4 dc4 (6...Bd6 7.d4 Ne7 8.de5 Be5 9.Be5 fe5=; 6...a5 7.b5 cb5 8.cd5 b4 9.Bb5 Bd7=; 6...Nd7 7.d4 a5 8.b5 Rc8 9.Nf3 dc4=; 6...Ne7 7.d4 Nd7 8.Nf3 e4 9.Nfd2 a5=) 7.Bc4 b5 8.Bg8 Rg8 9.Qb3 Rh8+=; D) 6.d3 Bd6 (6...a5 7.Nf3 Bd6 8.Nbd2 Ne7 9.Be2 0-0=; 6...Nd7 7.Be2 Bd6 8.Nf3 a5 9.Nbd2 Be6=; 6...Nh6 7.Be2 Bd6 8.Nf3 a5 9.0-0 0-0=; 6...c5 7.Nf3 Nc6 8.Be2 Bd6 9.0-0 Nge7=) 7.Nf3 Ne7 8.Be2 0-0 9.0-0 a5=; E) 6.d4 Bd6 (6...ed4 7.cd4 Bd6 8.Nf3 Ne7 9.Be2 0-0=; 6...a5 7.b5 Nd7 8.c4 Rc8 9.Nf3 dc4=; 6...Nd7 7.c4 a5 8.b5 Rc8 9.Nf3 dc4=; 6...e4 7.c4 Ne7 8.Nc3 Nd7 9.Nge2 a5=) 7.c4 Ne7 8.de5 Be5 9.Be5 fe5=.

    5.c3 Nh6 A) 6.Be2 a5 (6...Nf5 7.Nf3 Bd6 8.d3 0-0 9.0-0 a5=; 6...Bd6 7.d3 0-0 8.Nf3 a5 9.0-0 Qc7+=; 6...Be6 7.Nf3 Bd6 8.d3 0-0 9.0-0 a5+=; 6...Bf5 7.d4 Nd7 8.c4 dc4 9.Bc4 Bd6=) 7.Nf3 Bd6 8.d3 Be6 9.0-0 0-0+=; B) 6.Nf3 a5 (6...Nf5 7.d3 Bd6 8.Be2 Be6 9.c4 0-0=; 6...e4 7.Nd4 Bd6 8.d3 Bg4 9.Qc2 Qe7=; 6...Bg4 7.Be2 Bd6 8.0-0 0-0 9.d3 a5=; 6...Bd6 7.Be2 Bg4 8.0-0 0-0 9.d3 a5=) 7.Be2 Bd6 8.d3 0-0 9.0-0 Qc7+=; C) 6.c4 a5 (6...Bg4 7.Be2 Be2 8.Qe2 a5 9.b5 dc4=; 6...Bd6 7.cd5 cd5 8.Nc3 Be6 9.Qb3 0-0=; 6...dc4 7.Bc4 a5 8.b5 Nf5 9.d4 Nd6=; 6...Be6 7.cd5 Bd5 8.d4 ed4 9.Bd4 Nf5=) 7.ba5 Qa5 8.Bc3 Qd8 9.d4 dc4+=; D) 6.d3 Bd6 (6...Be6 7.Nf3 Bd6 8.Be2 a5 9.0-0 0-0+=; 6...a5 7.Nf3 Bd6 8.Be2 0-0 9.0-0 Qc7+=; 6...Bf5 7.Nf3 Bd6 8.Be2 a5 9.0-0 0-0=; 6...Nd7 7.c4 a5 8.b5 cb5 9.cb5 Bd6=) 7.Qh5 Nf7 8.Nf3 Be6 9.c4 dc4+=; E) 6.d4 a5 (6...Bd6 7.de5 Be5 8.Bd3 Qc7 9.Nf3 Bg4=; 6...Bg4 7.Be2 Be2 8.Qe2 Nf7 9.e4 de4=; 6...Be6 7.de5 fe5 8.c4 a5 9.cd5 Qd5=; 6...e4 7.c4 Bg4 8.Qb3 Be6 9.Nc3 Qd7=) 7.de5 fe5 8.e4 Be6 9.ed5 cd5=.

    5.c4 Na6 6.cd5 cd5 7.d4 Nb4? (better is 7...e4+=) 8.ab4+– Bb4 9.Bc3 Bc3 10.Nc3 Be6 11.de5 a6 12.Nf3 Rc8 13.Qa4 Bd7 14.Qd4 Bc6 (14...Be6 15.Bd3+–) 15.Bd3 Ne7 (15...fe5 16.Ne5 Nf6+–) 16.ef6 Ng6 (16...gf6 17.Qf6 Rf8+–) 17.Bg6 hg6 18.Qe5 Kf7 19.Ng5 Kg8 20.Qe6 Kf8 21.Qf7 1–0. Fritz 10 – nn, internet, 2007.

    5.c4 e4 6.cd5 cd5 7.Nc3 f5 8.Rc1 Nf6 9.Nb5 Nc6 10.Ne2 (10.Bf6 gf6 11.Qh5 Ke7+–) 10...a6 (10...Be7 11.Nf4=) 11.Nbd4 (11.Bf6 gf6 12.Nbd4 Nd4 13.Nd4 Qd7+–) 11...Bd7 (11...Nd4 12.Nd4 Bd6 13.d3=) 12.Nc6+= bc6 13.Nd4 Rc8 (13...Qb6 14.Nb3+=) 14.Nb3 Bd6 (14...Ra8 15.Na5 Qb6 16.Bd4+–) 15.Bd4 (15.Ba6 Rb8+–) 15...0-0 16.Ba6 Qe7? (better 16...Ra8 17.Qe2 Qc7+–) 17.Bc8+– Rc8 18.Nc5 f4 19.Bf6 gf6 20.Nd7 Qd7 21.Qh5 (21.0-0 f5+–) 21...fe3 22.de3 Be5 23.0-0 (23.Qe2 Ra8+–) 23...Rc7 (better 23...Ra8+–) 24.Rfd1 Qe7 25.Qg4 Qg7 (25...Kh8 26.Rc5+–) 26.Qg7 Kg7 27.g3 (27.b5 cb5 28.Rc7 Bc7 29.Rd5 Kg6+–) 27...f5 (27...Bb2 28.Rc2 Ba3 29.b5+–) 28.Kf1 (28.b5 cb5 29.Rc7 Bc7 30.Rd5 Kf6 31.Rb5 h5+–) 28...Kf6 (28...Bb2 29.Rb1 Ba3 30.Rb3 Bb4 31.Rb4+–) 29.Ke2 (better 29.b5!? cb5 30.Rc7 Bc7 31.Rd5 b4+–) 29...Ke6 30.b5 (30.a4 Kd6+–) 30...c5 (30...cb5 31.Rc7 Bc7 32.Rb1+–) 31.a4 (31.b6 Rc6+–) 31...d4 32.ed4 Bd6 (32...cd4 33.b6 d3 34.Kd2 Rb7+–) 33.dc5 Bc5 34.a5 Ra7 35.Rc5 Ra5 36.Rb1 (36.Rdd5 Ra2 37.Kf1 f4 38.gf4 Rb2+–) 36...Ra2 37.Kf1 e3 (37...Ra7 38.Rc6 Ke7 39.b6+–) 38.fe3 (38.b6!? Ra8 39.b7 Rb8+–) 38...Rh2 (38...Ra7 39.b6 Rb7 40.Rc6 Kd7 41.Rh6+–) 39.Kg1 Re2 40.b6 Re3 41.b7 Rg3 42.Kh2 (42.Kf2 Rg8 43.Rc8 Rg2 44.Kg2 Kf6 45.Rb6 Ke5 46.b8Q Ke4 47.Re6 Kd3 48.Qd6) 42...Rg8 43.b8Q (better 43.Rc8 Rg5+–) 43...Rb8 44.Rb8 Kd6 45.Rf5 Ke6 46.Rh5 Kf6 (46...Kf7 47.Rb6 Ke7 48.Rh7 Ke8 49.Rb8) 47.Rh7 (47.Rb6 Kg7 48.Rc5 Kf8 49.Rc7 h5 50.Rb8) 47...Kg6 (47...Kf5 48.Rh5 Kg6 49.Ra5 Kh6 50.Rb6 Kg7 51.Ra7 Kf8 52.Rb8) 48.Ra7 Kf6 (48...Kf5 49.Ra5 Kf6 50.Rb6 Ke7 51.Ra7 Ke8 52.Rb8) 49.Rb5 (49.Rb5 Ke6 50.Ra6 Kd7 51.Rb7 Kc8 52.Re7 Kd8 53.Rg7 Ke8 54.Ra8) 1–0. BeepBeepImAJeep (2625) – bby55 (1815), lichess.org, 2017.

    5.c4 Be6 (--> 4.e3 Be6 5.c4 c6).

    5.c4 Ne7 6.Nf3 Ng6 7.d4 Bd6 (7...e4 8.Nfd2=) 8.cd5 cd5 9.de5 Be5 (9...fe5 10.Nc3 e4 11.Nd4+–) 10.Ne5+– Ne5 (10...fe5 11.h4+–) 11.Nc3 (11.Be5!? fe5 12.Qh5 Kf8 13.Qe5+–) 11...Be6+= 12.Bb5 Nbc6 13.0-0 0-0 14.Ba4 (14.Na4 Nc4+=) 14...a6 15.Bb3 Increasing the pressure on the isolated pawn on d5 15...Nc4 16.Bc4 (16.Qc2 Rc8=) 16...dc4= 17.b5 (17.Qf3 Qe7=) 17...ab5 18.Nb5 Ne5 19.Nd4 Bg4 (19...Qd6 20.Qc2=+) 20.f3 Bh5 (20...Bd7 21.Qc2 Rc8 22.Rfb1=+) 21.Bc3 (21.Ne6 Qd1 22.Rfd1 Rfb8=) 21...Bf7 22.a4 Nc6 (better 22...Nd3!?=) 23.Nc6+– bc6 White gets strong play along the open b–file 24.a5 Re8 (24...Qe7 25.e4+–) 25.e4 (25.Qd8 Red8 26.Kf2 Be6+–) 25...Qc7 26.Qc2 Ra6 27.Rfb1 Rb8 28.Rb8 White terminates the opponent with strong threats 28...Qb8 29.Rb1 Qc7 (29...Qf8 30.Qb2+–) 30.Qb2 h6 (30...Ra8 31.Qb7 Qd8 32.Qc6+–) 31.Qb8+– Qb8 32.Rb8 Kh7 33.Rb7 Be6? (better 33...Kg8+–) 34.Bf6 Kg6 (34...Kg8 35.Bc3 Bf7 36.Rb8 Kh7 37.Kf2+–) 35.Bc3 (35.Bc3 h5 36.Rg7 Kh6 37.f4 Ra5 38.Re7+–) 1–0. BeepBeepImAJeep (2615) – bby55 (1690), lichess.org, 2018.

    5.c4 Nh6 6.Nf3 Be6 7.Qc2 Be7 8.Be2 0-0 9.d3 Nd7 10.Nbd2 a5 11.ba5 Qa5 12.0-0 Nf7 13.Rfb1 Rfb8 14.a4 Qd8 15.Nb3 dc4 16.dc4 Nc5 17.Nc5 Bc5 18.Bd3 h6 19.Rd1 Qc7 20.Bh7 Kf8 21.Nd2 Rd8 22.Ne4 Be7 23.Rd8 Rd8 24.a5 Nh8 25.h4 (25.Ng3 Bb4=) 25...h5 (25...g6 26.h5 gh5 27.Nd2=+) 26.Ng3= Bf7 27.Be4 Ra8 The isolani on a5 becomes a target 28.Qc3 Kg8 29.Bf3 g6 30.Ne4 Be6 31.a6 (better 31.c5!?+=) 31...Ra6=+ 32.Ra6 ba6 33.Ba3 Nf7 34.Nc5 Bc8 35.g3 Nd8 36.Qc2 Kg7 37.Be4 f5 38.Bg2 Ne6 (38...e4 39.Bb2 Kf8 40.Qc3 Bc5 41.Qh8 Ke7 42.Bf6 Ke6 43.Bd8=+) 39.Ne6= Be6 40.Bb2 (40.Be7 Qe7 A) worse 41.Bc6 Qc5 42.Bf3 Qc4-/+ (42...Bc4? 43.Be2+-); B) 41.Qa4=) 40...Bf6-/+ 41.Qa4 Qb6 42.Qa1 Qc5 (42...Bc4 43.Be5 c5 44.Bf6 Qf6 45.Qa3=) 43.Qa6= Qc4 44.Qc4 Bc4 45.Bc6 ½-½. Jaracz,P (2465) - Lewtak,Da (2375), Zgierz POL, 2019.

    5.Bd3 Be6. piolopakyawan – jupiter (2465), net–chess.com, 2011.

    5.d4 Bd6 6.de5 fe5 7.Nf3 Nf6 (7...Bg4 8.c4 Nf6 9.cd5 cd5 10.Be2=) 8.Be2 (better 8.Be5!? Be5 9.Ne5+=) 8...Qe7 9.Nbd2 Bf5 10.c4 Nbd7 11.0-0 0-0 12.cd5 cd5 (12...Nd5? 13.e4 Be6 14.ed5 cd5 15.Bb5+-) 13.Qb3 Be6 14.Ng5 Rae8 15.Ne6 Qe6 16.Rac1 a6 17.Rfd1 Kh8 18.Nf3 Qf5 (18...e4 19.Nd4 Qe5 20.g3=) 19.Qc2 (19.Rd5 Nd5 20.Qd5 Bb8+=) 19...Qc2 20.Rc2 Rc8 21.Rdc1 Rc2 22.Rc2 h6 23.h3 e4 24.Nh4 Kh7 25.Nf5 Bb8 26.g4 (26.Nd4 Rf7+=) 26...Ne5= 27.Be5 Be5 28.Rc5 Rd8 29.Ne7? (29.f4 ef3 30.Bf3 Rd7=) 29...Bb2 (better 29...Bd6 30.Nd5 Bc5 31.Nf6 gf6 32.bc5 Rc8-+) 30.Rc7= Ba3 (30...Rb8 31.Nf5 Ne8= (31...Ba3? 32.Rg7 Kh8 33.Rg6+-)) 31.Rb7+= d4 32.ed4 Rd4 Attacks the isolani on b4 33.Ba6 (33.Nf5!? Rd7 34.Ba6 Rb7 35.Bb7 Bb4 36.Ng3+=) 33...Rb4= 34.Rb4 Bb4 35.Nf5 Bc5 36.Kg2 Nd5 37.Bb7 Nc3 38.Ne3 g5 39.Nd5 Nd5 40.Bd5 e3 41.fe3 Be3 42.Kf3 Bd2 43.Kg3 Kg7 44.Be4 Ba5 45.Kf3 Bc7 46.Bf5 Bb6 47.Ke4 Bc7 48.Kd5 Bf4 49.Ke4 Bg3 50.Kf3 Bf4 51.h4 Bb8 52.hg5 hg5 53.Ke4 Bf4 54.Kf3 Kf6 55.Ke4 Bd2 56.Kf3 Bc1 57.Ke4 Bd2 58.Kf3 Bc1 59.Ke4 Bd2 60.Kf3 Bb4 61.Ke4 Ba5 62.Kf3 Bb4 63.Ke4 Ba5 64.Kf3 Bb4 65.Ke4 Ba5 66.Kf3 Bb4 67.Ke4 Ba5 68.Kf3 Bb4 ½-½. muhammadaudii (2155) - Mitchell82 (2165), Rated Blitz game, lichess.org, 2020.

    5.d4 e5 6.c4 Nd7 7.b5 dc4 8.Bc4 Ne7 9.a4 a5 10.bc6 bc6 11.d5 cd5 12.Bd5 Nf5 13.Ba8 Bb4 14.Nd2 0-0 15.Qc2 Ba6 16.Be4 Nd6 17.0-0-0 Bd2 18.Qd2 Ne4 19.Qd7 Qb8 20.Qd5 Kh8 21.Qe4 Rc8 22.Kb1 Rc4 23.Qc4 Bc4 24.f4 Qb4 25.fe5 h6 26.ef6 Qa4 27.fg7 Kg8 28.Rd8 Kf7 29.g8Q Ke7 30.Qe8 1–0. pat_cash87 – Schakiekoo, lichess.org, 2020.

    5.Nf3 b5 A) 6.Be2 a5 7.c3 (7.a4 e4 8.Ng1 ab4 9.ab5 Ra1 10.Ba1+=) 7...Bd6 8.d3 Ne7 9.0-0 Nd7 10.Qd2=; B) 6.Bc3 a5 7.ba5 Bd6 8.d4 e4 9.Nfd2 Na6 10.Bb5=.

    5.Nf3 Bf5 6.d3 Nd7 7.Be2 Bd6 8.Nbd2 Ne7 9.0-0 0-0 10.c4 a5 11.c5 Bc7 12.Qb3 b6 13.cb6 Bb6 14.ba5 Ba5 15.Bc3 Rb8 16.Qc2 c5 17.Rfb1 c4 18.Ba5 Qa5 19.Qd1 (better is 19.e4 Rb1 20.Rb1 cd3 21.Bd3+=) 19...cd3–+ 20.Bf1 Rfc8 21.Rb8 Rb8 22.Nh4 Rb2 23.Nf5 Nf5 24.Nf3 (better is 24.Nb3!? Qc3 25.Qd3 Qd3 26.Bd3 Ne3 27.fe3 Rb3 28.Bf5-/+) 24...e4–+ 25.Nd4 Nd4 26.ed4 Qc3 27.a4? (27.Rb1–+) 27...Qd4 28.Kh1 Qf2 29.a5 (29.Qh5 Qd4–+) 29...Nb8 (better is 29...Ra2 30.Rc1–+) 30.a6? (30.Qh5 g5 31.Qe8 Kg7 32.Qe7 Kh6 33.Qf8 Kh5 34.Qf7 Kg4 35.Qe6 f5 36.h3 Kh5 37.Qf7 Kh4+=) 30...Na6! 31.Ra6 e3?? (better is 31...h6–+) 32.Ra8+= Kf7 33.Ra7 (33.Qd3? e2 34.Qd5 Kg6 35.Qd3 Kh6 36.Be2 Re2 (36...Qe2?! 37.Qh3 Qh5 38.Qe3 Qg5 39.Qh3 Kg6 40.Ra1-/+) 37.Qh3 Kg5 38.Qg3 Qg3 39.hg3 h5–+) 33...Kg6?? (better is 33...Kf8 34.Qc1 Rc2 35.Qa3 Kg8 36.Qd3 Rd2=) 34.Bd3 (34.Qg4 Kh6 35.Qg7 Kh5 36.g4 Kh4 37.Qh7 Kg4 38.Qg6 Kf4 39.Qf6 Kg4 40.Rg7 Kh5 41.Qg5) 34...Kh6–+ 35.Bf1 e2 36.Be2 (36.Be2 Re2 37.Qe2 Qe2 38.h3–+). Fournier,Frederic (1745) – elcurraco (1720), Active, 2007.

    5.Nf3 g6 6.c4 Bg7 7.Nc3 Ne7= 8.Qb3 Bf5 (8...Bg4 9.h3 Bf3 10.gf3=) 9.Rc1 0-0 (9...Bg4 10.cd5 Bf3 11.gf3 cd5 12.f4 ef4 13.Bg2+/-) 10.h4 (10.cd5 cd5 11.Nd5 Nd5+/-) 10...d4 (10...Be6 11.cd5 cd5 12.d4+=) 11.c5 (11.ed4 e4 12.Ng1 Re8+/-) 11...Kh8= 12.Ne2 de3 13.fe3 (13.de3 h6=) 13...Nd5 (13...h5!?=) 14.Ng3 White prepares h5 14...Bg4 15.h5 gh5 16.Nh5 Bh5 17.Rh5 Qe8 18.Rh1 Nd7 (18...e4 19.Nh4+/-) 19.Qc2 (19.e4!? Ne7 20.Nh4+/-) 19...e4+= 20.Nh4 (20.Rh3!?+=) 20...f5= 21.Bg7 Kg7 22.Be2 Kg8 23.Qb2 (23.g4 f4=) 23...f4 24.Rh3 Ne5 25.ef4 (better 25.Qd4 Ng6 26.ef4 Rf4 27.g3=) 25...Rf4-+ (25...Nf4 26.Rg3 Kf7 27.Bc4 Nd5 28.Nf5 Nd3 29.Bd3 ed3 30.Kf1+-) 26.Rg3 Kf8 27.Rh3? (27.Rg5 Nd3 28.Bd3 ed3 29.Re5 Re4 30.Re4 Qe4 31.Kf1 Qh4 32.Qh8 Kf7 33.Qa8 Qh1 34.Kf2 Qc1 35.Qb7 Ne7 36.Ke3 Qa3 37.g4-+) 27...Nd3 28.Kd1 (28.Rd3 ed3 29.Qh8 Ke7 30.Qh7 Kd8 31.Qd3 Rh4 32.Kd1-+) 28...Nb2 29.Kc2 Nd3! 30.Bd3 ed3 31.Kd3 Rd8 (31...Qe4) 32.Kc2-+ Rc4 33.Kd1 Rc1 (33...Ne3 34.Re3 Qe3 35.Nf3 Qb3 36.Rc2 Re8 37.Ne5 Re5 38.d4 Qc2) 34.Kc1 Qe6 (34...Qe1 35.Kb2 Qd2 36.Kb3 Ne3 37.Ng6 Ke8 38.Re3 Qe3 39.Ka4 Rd3 40.b5 Ra3 41.Kb4 Qc3) 35.Rf3 Kg8 (better 35...Nf6 36.Kd1 Qg4 37.Kc2 Qc4 38.Kd1 Qh4 39.Kc2-+) 36.Nf5 Rf8 (36...Qe1!? 37.Kb2 Qd2 38.Kb3 Qd1 39.Kb2-+) 37.Rg3 (37.Nd6 Rf3 38.gf3 Qe1 39.Kc2 Qa1-+) 37...Kh8 38.Nd4 Qe1 39.Kc2 Qg3 40.Ne2 Qg2 (40...Qa3 41.Nf4 Qa2 42.Kd1 Qb1 43.Ke2 Rf4 44.d3 Qf1 45.Kd2 Rf2) 41.Nc3 Qd2! 42.Kb3 (42.Kd2 Nc3 Combination) 42...Nc3 (42...Qc3 43.Ka4 Rf5 44.b5 Rf4) 43.Kc4 (43.Kc4 Na4 44.Kb3 Qd1 45.Kc4 Qd5; 43.b5 Qa2 44.Kc3 Rf3 45.Kb4 Qa3 46.Kc4 Qc3). FeegLood (2520) - kingston_1972 (2245), Time forfeit, lichess.org, 2015.

    5.f4 Bd6=+ 6.Nf3 (6.fe5 fe5 7.Be5 Nf6 8.Bd6 Qd6+=) 6...e4 (6...ef4!? 7.ef4 Bf4-/+) 7.Nd4= Ne7 (7...a5 8.ba5 Ra5 9.c4=) 8.Nc3 (8.Qh5 g6 9.Qh6 a5=) 8...0-0 9.d3 ed3 10.Bd3 c5 (10...a5 11.ba5 Qa5 12.0-0=) 11.Ndb5 (better 11.bc5 Bc5 12.Qh5=) 11...Bf5?? (better 11...cb4 12.Nd5 ba3 13.Ne7 Qe7 14.Bc4 Kh8 15.Qd6 Qd6 (15...ab2 16.Qe7 ba1R 17.Kf2+-) 16.Nd6 ab2+=) 12.Nd6 (better 12.Bf5 Nf5 13.Qd5 Kh8 14.Qf5 cb4 15.Nd5+-) 12...Qd6+/- 13.0-0 (better 13.Bf5 Nf5 14.Qd5 Qd5 15.Nd5+/-) 13...Bd3 14.cd3 (14.Qd3 Na6 15.e4+=) 14...Nbc6 Black intends d4 (14...cb4 15.Nb5 Qd7 16.Nd4 ba3 17.Ra3=+) 15.b5 (15.Nb5!? Qe6 16.Re1 cb4 17.Nc7+/-) 15...Nd8 16.e4 White prepares the advance f5 16...d4 17.Ne2 Ne6 (17...f5!?=) 18.f5+= Ng5 19.Bc1 Nf7 20.Bf4 (20.Nf4 Rfc8+=) 20...Ne5 21.Qb3 Kh8 22.a4 Rac8 Black prepares c4 23.Rfc1 c4 (23...g6!? 24.fg6 N7g6 25.Be5 fe5=) 24.Rc4+/- Rc4 25.Be5 (25.dc4 d3 26.Be5 fe5=+) 25...Qe5 (25...fe5!? 26.Qc4 a6+/-) 26.Qc4+/- (26.dc4?! d3 27.Nc3 Qd4 28.Kh1 Rc8=+) 26...Rc8 (26...Nf5!? 27.Rc1 Re8 28.Qc5+-) 27.Qd4+- Qd4 28.Nd4 Rd8 29.Ne6 Rd3 30.Rc1 h5?? (30...Rd7+-) 31.Rc7 Kh7 (31...Ng8 32.Rb7 Nh6+-) 32.Re7 Rd1 33.Kf2 Ra1 34.Kg3 Ra2 (34...Ra4 35.Rg7 Kh8 36.Rb7 Re4 37.Ra7 Rg4 38.Kh3+-) 35.Rg7 Kh6 (35...Kh8 36.e5 fe5 37.f6 h4 38.Kh4 Rf2 39.f7 Rf4 40.Kg5 Rf7 41.Rf7 e4 42.Kg6 e3 43.Rf8) 36.Rg6 (36.Rf7 h4 37.Kh4 Rg2 38.Nf8 Rh2 39.Kg3 Kg5 40.Rg7 Kh5 41.Rh7 Kg5 42.Ne6) 36...Kh7 37.Kh3 (37.Nf8 Kh8 38.Nd7 Rd2 39.Nf6 Rd3 40.Kh4 Rd8 41.e5 Rd4 42.Kh5 Rd8 43.Rh6 Kg7 44.Rh7 Kf8 45.Kg6 Rd7 46.Rh8 Ke7 47.Re8) 37...Kh8 (37...Ra3 38.g3 Ra4 39.Nf4 Rc4 40.Nh5 Rc7 41.Nf6 Kh8 42.Rg8) 38.g3 Kh7 (38...Ra4 39.Rf6 Ra2 40.Rf8 Kh7 41.Rf7 Kh6 42.Rb7+-) 39.Rf6 (39.Nf4 Rd2 40.Nd5 Re2 41.Nf6 Kh8 42.Rg8) 39...Kh8 (39...b6 40.Rf7 Kh6 41.Ra7+-) 40.Rf7 Ra4 41.Rf8 (41.Rf8 Kh7 42.Ng5 Kh6 43.Rg8 Ra6 44.ba6 h4 45.Rg6 Kh5 46.g4) 1-0. caspiwins (2435) - DrunkenPianoTuner (2325), Rated Bullet game, lichess.org, 2016.

    5.Nh3 a5 6.f4 e4 (6...ab4 7.fe5 ba3 8.Na3=) 7.b5= Be6 8.c4 (8.Nc3!?=) 8...dc4=+ 9.f5 (9.Nc3 Qd7=+) 9...Bf7 (9...Bf5 10.Bc4 Qd7 11.Nc3 Bh3 12.Qh5 Kd8 13.gh3=+) 10.Nf4 (10.Qa4!?=+) 10...cb5 11.Nc3 b4 (11...Qd7 12.Qc2-/+) 12.ab4 ab4?? (12...Bb4 13.Ne6 Be6 14.fe6 Bc3 15.Qh5 g6 16.Qb5 Nc6 17.Bc3 Nge7 18.Bc4 Rf8=) 13.Ra8+- bc3 (13...Ne7 14.Qa4 Nec6 15.Ne4 Bd6+-) 14.Qa4 Qd7 (14...Nc6 15.Rd8 Kd8 16.Qa8 Kc7 17.Qf8 Nh6 18.Nd5 Bd5 19.Qg7 Nf7 20.Bc3 Nce5+-) 15.Rb8 (15.Rb8 Ke7 16.Qb4 Qd6 17.Qb7 Qd7 18.Ba3) 1-0. FeegLood (2790) - jimakos (2570), Time forfeit, lichess.org, 2016.

    5.Nh3 Be6 6.f4 Bd6 (better 6...Nd7!?=+) 7.fe5+= fe5 8.Be5 Nf6 9.Bd6 Qd6 10.Nf4 Bf7 11.Nc3 0-0 12.Bd3 Nbd7 (12...d4 13.Nce2 de3 14.de3=) 13.0-0 d4 14.ed4 Qd4 15.Kh1 Ne5 16.Nce2 Qd7 17.Ng3 Rad8 18.h3 (18.Nf5 Bg6 19.Qe2 Rfe8 (worse 19...Nd3 20.Ne7 Kf7 21.Neg6 Nf4 22.Nf4+/-) 20.Ng6 hg6 21.Bc4 Nc4 22.Qc4 Qe6 23.Qe6 Re6=) 18...Rfe8 19.Rf2 Bd5 (19...Qd4 20.Qf1=) 20.Ngh5 Ne4 21.Be4 Be4 22.d3 Bd5 23.Qd2 Ng6 24.Kh2 Nf4 25.Qf4 (25.Nf4!? Qd6 26.Kg1+/-) 25...Rf8+= 26.Qg3 Rf2 27.Qf2 Rf8 28.Qg3 Qf7 29.Rf1 (better 29.Qg5!?+=) 29...Qh5=+ 30.Rf8 Kf8 31.Qd6 Kf7 32.Qd7 Kg6 (32...Kf6!? 33.Qd8 Ke6=) 33.Qd6= Kg5 34.Qe7 (better 34.c4!? Qf7 35.cd5 cd5 36.Qg3 Kh5 37.Qe5 g5 38.g4 Kg6 39.Qd6 Kg7 40.Kg3=) 34...Kh6-/+ 35.Qd6? (better 35.c4!? Bg8 36.Qb7 Qe5 37.Kh1-/+) 35...Qg6-+ 36.Qf4 Qg5 37.Qd6 Qf6 38.Qb8 a6 (38...Qc3 39.Qf4 Kg6 40.Qg3 Kf5 41.Qg4 Kf6 42.Qh4 Ke6 43.Qg4 Kd6 44.Qf4 Kd7 45.Qf5 Kc7 46.Qf8-+) 39.Qc7 (39.c4 Be6-+) 39...Qf2 (39...b5 40.Qg3-+) 40.Qd6 Kh5 41.Qe5? (41.Qg3 Qg3 42.Kg3-+) 41...g5 42.Qe8 (42.Qg3 Qc2 43.Qg4 Kg6 44.Qg3-+) 42...Kh4 43.Qe1 (43.Qe4 Be4 44.de4 Qf4 45.g3 Qg3 46.Kh1 Kh3 47.e5 Qg2) 43…Qe1 (43...Qe1 44.c4 Qg3 45.Kg1 Qg2) 0-1. FeegLood (2405) - kidchamp (2435), lichess.org, 2015.

    5.c4 a5

    6.b5 cb5!? 7.cb5 Be6 =.

    6.b5 dc4 7.Bc4 cb5 8.Bb5 Bd7 9.Bc4 Qb6 10.Qb3 Qb3 11.Bb3 Ra6 12.Bc3 b5 13.Nf3 b4 14.ab4 ab4 15.Bb2 Ra1 16.Ba1 e4 17.Nd4 Nc6 18.f3 Nd4 19.Bd4 ef3 20.gf3 Bb5 21.Kf2 Bd6 22.h4 Ne7 23.e4 Nc6 24.Be3 Bd3 25.Rc1 Kd7 26.Bc2 Bc2 27.Rc2 b3 28.Rc3 Rb8 29.f4 b2 30.Rd3 Rb5 31.Ke2 Rb4 32.Bc5 Re4 33.Kd1 (33.Kf3 Rf4 34.Kg2 Rg4 (worse is 34...Rh4 35.Bd6 Ke6 36.Ba3+=) 35.Kh3 Rc4 36.Rd6 Kc7-/+) 33...Rc4-/+ 34.Rd6 Kc7 35.Rd3 (35.d4 Rc1 36.Kd2 Na5–+) 35...Rc1 36.Ke2 Rc5 (worse is 36...Rb1 37.Rb3-/+) 37.Rc3 Rc3 38.dc3 Ne7 39.Kd2 Ng6 40.Kc2 Nh4 41.Kb2 Ng2 42.f5 h5 0–1. Recio,Luis – Bertel,Michael (1765), IECG, 2004.

    6.b5 Bd7 7.cd5+= cd5 8.d4 Bd6 9.de5 fe5 10.Qd5 Qb6? (better is 10...Bc8 11.Nc3 Nf6+/–) 11.Be5 Be5 12.Qe5 Kf8 13.Nd2 Nf6 (13...Bg4 14.h3 Bc8 15.Nc4+–) 14.Nc4 Qb5 15.Qd6 Ke8 16.Qb8!! Rb8 17.Nd6 Ke7 18.Nb5 (18.Bb5?! Kd6 19.Rd1 Ke7 20.Bd7 Nd7+/–) 18...Rhd8 19.Nf3 Rbc8 20.Nfd4 Ne4 21.Bd3 Nf6 22.Ke2 Rc5 23.Rac1 b6 24.Na7 Ke8 (24...Ra8 25.Ndb5+–) 25.Rc5 bc5 26.Ndc6 Bc6 27.Nc6 Ra8 28.Rc1 Nd7 29.Bh7 Ra6 30.Be4 1–0. Fournier,Frederic (2440) – Fbeley (2000), echecsemail.com, 2010.

    6.b5 Be6 7.bc6 Nc6 8.cd5 Qd5 9.Nc3 Qd7 10.Bb5 Nge7 11.Nf3 Nf5 12.d4 ed4 13.Nd4 Nfd4 14.ed4 0-0-0 15.Bc6 bc6 16.Qa4 Qb7 17.Rc1 Qa6 (17...Bd6 18.d5 cd5 19.Nb5 Kd7 20.Bd4+/– (worse is 20.Qa5 Bf4+=; 20.Nd6?! Kd6 21.Bc3 Ke7=)) 18.d5+/– Bd7 19.Nd1 c5 20.Qc2 Bb5 (20...Re8 21.Ne3 Kd8 22.a4=) 21.Ne3+= Bd3 Black prepares c4 22.Qa4 (22.Qd1 Rd7+=) 22...Rd7 (22...Qb5!? 23.Qb5 Bb5=) 23.Bc3+/– c4 24.Bd2 Rc7 25.Kd1 (25.Ba5?! Bc5 26.Nc4 Bc4 27.Rc4 Bf2 28.Kf2 Qc4 29.Qc4 Rc4=) 25...Bd6 26.Bb4 (26.Ba5? Rc5 27.Ke1 Ra5 (27...Qa5?! 28.Qa5 Ra5 29.Nc4 Bc4 30.Rc4 Kd7 31.a4–+) 28.Rc4 Kd8–+) 26...Bf4 27.Re1 (worse is 27.Qa5 Qa5 28.Ba5 Be3 29.fe3 Rc5-/+; 27.Ba5? Rc5 28.Qb4 Qa5 29.Qa5 Ra5 30.Nc4 Bc1 31.Na5 Ba3–+) 27...Rd8 28.Qa5 (28.Ba5? Rc5 29.g3 Ra5–+) 28...Qb7 Attacks the isolani on d5 29.Rc3 Be4 The pressure on the isolated pawn grows (29...Bg6 30.Ke2 Be3 A) 31.fe3 Rd5 (31...Qd5?! 32.Qd5 Rd5 33.Kf3+=) 32.Qa4 Rg5–+; B) 31.Ke3?? Rd5 32.Qa4 Re5 33.Kf4 Re1–+; C) 31.Re3 Rd5 32.Qa4=) 30.f3= Bd5 31.Ke2 Qc6 32.Kf2 (32.Nd5?? Rd5 33.Kf1 Be5–+) 32...Be5 (32...Bh2 33.Nc4 Qb7 34.Rec1 Bc4 35.Rc4 Rc4 36.Rc4 Bc7 37.Qf5 Kb8 38.Qh7 Qb6 39.Kf1 Rd1 40.Ke2=) 33.Rc2 (33.Nd5?? Rd5 34.Rc4 Qc4 (34...Ra5?! 35.Rc6 Rc6 36.Ba5+=) 35.Qa8 Kd7 36.Qa4 Qb5 37.Qb5 Rb5–+) 33...Be6 (better is 33...Bd4!? 34.Kf1 Bb6 35.Qa6 Qb7 36.Qb7 Kb7 37.Nd5 Rd5=) 34.Bc3+= Bc3 35.Rc3 Rd3 36.Rec1 (36.Rd3!? cd3 37.Rd1+/–) 36...Rc3+= 37.Rc3 Kd8 38.Kg1 Qc5 39.Qc5 Rc5 40.Kf2 Kc7 41.Ke2 Kb6 42.Nc2 Bf7 43.Kd2 Rh5 44.h3 Rd5 45.Ke3 Kc5 46.g3 Rd1 47.Ke2 (better is 47.h4!?+=) 47...Rh1-/+ 48.h4 Bg6 49.Ke3 Bc2 50.Rc2 Re1 51.Re2 Ra1 52.Kd2 Ra2 53.Kd1 Ra3 54.Re7 Rf3 55.Rg7 h5 56.Kc2 Rf5 (56...c3!? 57.Rg8–+) 57.Kc3-/+ Re5 58.Rc7 Kd6 59.Rh7 Kd5 60.Rd7 Ke4 61.Kc4 Re8 (61...Kf3 62.Rg7 Re1 63.Rg6=) 62.Ra7 (62.Rh7 Rc8 63.Kb5 Rc3=) 62...Rc8 (62...Kf3 63.Rg7 Re4 64.Kd5 Re2=) 63.Kb4 Kf3 64.Rh7 Kg3 65.Rh5 Kg4 66.Rh7 f5 67.h5 Kg5 68.Rf7 Rc6 (68...Kh5?! 69.Rf5 Kg4 70.Rf7=) 1–0. Buedding,Karl_Heinz – Moreira Leite,Denis, corr ICCF EM/H/007 ICCF Email, 1999.

    6.cd5 ab4 7.dc6 Nc6 8.a4 =.

    5.c4 dc4

    6.Bc4 a5 =.

    6.Bc4 b5 7.Bb5?? (better is 7.Bg8 Rg8 8.Qh5 g6 9.Qh7=) 7...cb5–+ 8.f4 (8.Qh5 g6 9.Qe2 a5–+) 8...ef4 (8...Nc6 9.fe5 fe5 10.Nf3–+) 9.Qh5 g6 10.Qf3 (10.Qf3 Bd7 11.Qa8–+) 0–1. Trkn – zak, itsyourturn.com, 2001.

    6.Bc4 Bf5 7.d3 (7.d4 ed4 8.Bd4 a5=) 7...Nd7 (7...Nh6 8.e4 Bc8 9.d4=) 8.e4 Bg6 9.Nf3 Nh6 (9...Nb6 10.Be6=) 10.0-0+= Bf7 (10...Nb6 11.Nbd2+=) 11.Bb3 (11.Bc1 Bh5+=) 11...Qc7 (11...a5 12.Bf7 Nf7 13.ba5 Ra5 14.d4=) 12.Nbd2 (12.d4 Bd6+=) 12...0-0-0 (12...a5 13.ba5 Ra5 14.d4+=) 13.Rc1+/– Bh5 14.Be6 Qd6 (14...Kb8+/–) 15.Bd5 (15.Qb3 Re8 16.Bd7 Qd7+/–) 15...Kb8+= 16.Bc6 (better is 16.Nc4!? Qc7 17.Be6+=) 16...bc6-/+ 17.Qb3 (17.d4 ed4 18.Bd4 Nb6+=) 17...Ka8 (better is 17...Bf7 18.Qc2 c5+=) 18.a4?? White prepares the advance b5 (better is 18.d4!?+=) 18...Bf7 (18...Qb4 19.Qa2 Nc5 20.d4 Qa4 21.Qb1 Bf3 22.Nf3 ed4 23.Nd4–+) 19.Nc4? (19.Qc2 Nb8 20.b5 cb5 21.ab5 Qd3–+) 19...Qe6 (better is 19...Qb4!? 20.Qc2 Nc5 21.Rfd1–+) 20.Nfd2 (20.Qc3!?-/+) 20...Rb8–+ 21.b5 Nc5 22.Qa2? (22.Qc2–+) 22...Nd3 23.Rb1 (23.Rcd1 Nf4–+) 23...Bb4 (worse is 23...cb5 24.ab5 Bb4 25.Qa4–+) 24.a5 (24.Qa1 Bd2 25.Nd2 Qa2–+) 24...Rb5 (better is 24...Bd2 25.Rfd1 Qc4 26.Qc4 Bc4 27.Rd2 Rb5 28.Rc2–+) 25.a6 (25.Qa1 Nb2 26.Rb2–+) 25...Bd2 26.Rfd1 (26.Be5 Qc4 27.Qd2 Re5–+) 26...Nb2 (better is 26...Qc4 27.Qc4 Bc4 28.Rd2–+) 27.Rb2 Bc3 (27...Qc4 28.Qc4 Bc4 29.Rbd2–+) 28.Rb5 Qc4 (28...Qc4 29.Qc4 Bc4–+) 0–1. alaamattar (2215) – jcekota (2115), net–chess.com, 2008.

    6.Bc4 Nh6 7.Nf3 Bg4 8.Be2 Nd7 9.0-0 Qc7 (9...a5 10.ba5 e4 11.Nd4 Be2 12.Qe2=) 10.Nc3+= 0-0-0 11.d4 ed4 (11...Bf3!? 12.Bf3 ed4 13.Qd4 Qb6+=) 12.Nd4+/- (worse 12.Qd4 Nb6 13.Qe4 Bf5=) 12...Be2 13.Qe2 (worse 13.Nde2 Bd6 14.h3 Ne5=) 13...Bd6 14.g3 (14.Ne6 Qb8 15.Nd8 Rd8 16.f4+-) 14...Kb8? (14...Rhe8 15.Rac1 Ne5 16.Ncb5+/-) 15.Rac1 (15.Ne6 Qb6 16.Nd8 Rd8+-) 15...Ne5? (15...Nf8 16.Rfd1 Be5 17.b5 Bd4 18.Rd4+/-) 16.Rfd1 (16.Ne6!? Qe7 17.Nd8 Rd8+-) 16...Qd7 (16...Rhe8 17.b5 c5 18.Nb3+/-) 17.Ne4 Qh3 18.Qf1 (18.Nc6 Nc6 19.Rd6 Rd6 20.Nd6 Ng4+-) 18...Qf1 19.Kf1 Bc7 20.Nc5 Bb6 21.Nde6 Rd1 22.Rd1 g6 (better 22...Nc4!? 23.Bd4 Kc8+/-) 23.h3 Nf5 (23...Bc5 24.Nc5 (24.bc5?! Nhf7+/-) 24...Ka8 25.Ne4+-) 24.g4 (24.e4 Bc5 25.Nc5 Nh6+-) 24...Ne7 (24...Bc5 25.Nc5 (25.gf5?! Be7+/-) 25...Nh6 26.g5+-) 25.f4 (better 25.g5 Nf5 26.e4 Bc5 27.bc5+- (worse 27.Nc5 Nh4+-)) 25...Nf3?? (better 25...Nc4 26.Bf6 Re8 27.Be7 Ne3 28.Ke2 Nd1 29.Bd6 Kc8 30.Kd1 Bc5 31.Nc5 b6=) 26.Bf6 Nd5 27.Bh8 Ne3 28.Ke2 Nd1 29.Kd1 (better 29.Kf3 Kc8+-) 29...Ng1 (29...Bc5 30.bc5 Kc8 31.f5 gf5 32.gf5+-) 30.f5 gf5 31.gf5 Nh3 (31...Bc5 32.bc5 Nf3+-) 32.f6 Nf2 33.Ke2 Ng4 34.f7 a6 (34...Bc5 35.Nc5 h5 36.f8Q Kc7 37.Qe7 Kc8 38.Qb7 Kd8 39.Qd7) 35.f8Q Ka7 36.Qe7 Bc5 (36...Bc7 37.Qc7 h5 38.Qb7) 37.Nc5 (37.Nc5 h5 38.Qb7) 1-0. jhonores (2115) - rucula (1860), Hourly SuperBlitz Arena, lichess.org, 2020.

    5.c4 d4

    6.Nf3 c5 7.bc5 Bc5 8.ed4 (8.Nd4 Bd4 9.ed4 ed4 10.Qh5 g6 11.Qb5 Nc6+=) 8...ed4= 9.d3 Ne7 10.Be2 0-0 11.0-0 Nf5 12.Nfd2 Nc6 13.Nb3 b6 (13...Bd6 14.Bf3=) 14.Nc5 bc5 15.Nd2 Rb8 16.Rb1 Nh4 17.Nf3 f5 (17...Ng6 18.Nd2=) 18.Nh4 Qh4 19.Bf3 Ne5 20.Bd5 Kh8 21.h3 (21.Qe2 Ng6=) 21...Bd7 (21...f4 22.Re1 Qf6 23.f3-/+) 22.f4 (22.Re1 Ng6=) 22...Ng6 23.Qd2 Ne7 24.Bf3 Bc6 (better 24...Nc6=) 25.Rbe1?? (better 25.Qa5 Bf3 26.Rf3+=) 25...Bf3–+ 26.Rf3?! (26.Re5 Bb7 27.Rc5–+) 26...Ng6 (better 26...Rb2 27.Qb2 Qe1 28.Kh2 Ng6–+) 27.Bc1 Rb3 (27...Rbe8 28.Re8 Re8 29.Qa5=) 28.Qf2 (28.Qa5 Rc8=) 28...h6 29.Rg3 (29.Qd2 Rb1=) 29...Qf6 (29...Kh7 30.Qf3=+) 30.Re2 (30.Qf3 Rbb8=+) 30...Rb1=+ 31.Re1 Rfb8 32.Kh1 R8b3 33.Kh2 a6 34.Bd2 (34.Qe2!?=+) 34...Re1-/+ 35.Qe1 Qe7?? (better 35...Ra3 36.Qe8 Kh7–+) 36.Rg6+– Threatening mate: Qxe7 36...Qe1 37.Be1 Rd3 (37...Ra3 38.Rc6 Rd3 39.Rc5+– (39.Ra6?! Re3 40.Bd2 Re2+–)) 38.Rg3 (38.Ra6!? Re3 39.Bh4 Rc3+–) 38...Rd1 39.Ba5 Rc1 40.Rb3 (better 40.Bc7!? Kh7 41.Be5+–) 40...Rc4+– 41.Rb8 Kh7 42.Bb6 (42.Rd8 Rc2+–) 42...Rc2 (better 42...d3!? 43.Rd8 Rc3=) 43.Rd8+– a5 (43...g5 44.fg5 hg5+–) 44.Rd5 Rc3 45.Bc5 d3 46.Bb6 (46.Bd6 g6+–) 46...a4 (better 46...Ra3 47.Ba5 Kg6+–) 47.Bc5 Rc4 (47...Kg6 48.Bb4 Rb3 49.Ra5+–) 48.Bb4 (48.Bb4 Rf4 49.Rd3+–; 48.Rf5 d2 49.Rd5 Rc5 50.Rd2 Rc3=) 1–0. BeepBeepImAJeep (2620) – DecentMan (2155), lichess.org, 2017.

    6.Nf3 de3 7.de3 Qd1 8.Kd1 Bg4 9.Nc3 Nd7 10.Kc2 (10.Ke1 Be6=) 10...a5 11.c5 Nh6 12.h3 Bf5 13.e4 Be6 14.Be2 Nf7 (14...Rd8 15.Rhd1=+) 15.Rhd1 (15.Nd2 Be7=) 15...Be7 (15...Rd8 16.g4=+) 16.Nh4 (16.Nd2 b5=) 16...g6 17.Nf3 Bc5 (better 17...Rd8!?=+) 18.bc5+/- Nc5 19.Nd2 a4 20.Bc4 b5 21.Be6 Ne6 22.Nf3 Nfg5? (better 22...Ke7!?+=) 23.Ng5+- Ng5 24.Rd6 Ke7 (24...Rc8 25.f4 (25.Rf6?! Ke7 26.h4 Kf6 27.hg5 Kg5=) 25...Ke7 26.Rad1+- (26.fg5 Kd6 27.Rd1 Ke6=+)) 25.Rad1 (25.Rc6 Rac8 26.Nd5 Kf7 27.Rc8 Rc8 28.Kd3 Ne6+-) 25...Rhc8 26.Na2 (better 26.Rd7!? Ke8 27.Bc1+-) 26...Rc7 27.f3 Rac8 28.Bc3 Ne6 29.Ba5 (29.Kb2 Nd4 30.Bd4 Kd6 31.Bb6 Ke7 32.Bc7 Rc7+/-) 29...Rb7 (better 29...Ra7 30.Bb6 Rb7+=) 30.Bb4?? (better 30.Nb4 c5 31.Rc6+/-) 30...c5-/+ 31.Bc3? (better 31.Kb1 Nd4 32.Ra6 cb4 33.Nb4-/+) 31...Nd4-+ 32.Bd4 (32.R6d4 cd4 33.Kd3 dc3 34.Nc3 Rd7 35.Nd5 Ke6 36.Rb1-+) 32…cd4 (32...cd4 33.Rc6 Rc6 34.Kb2 Ke6-+; 32...Kd6?! 33.Be3 Ke6 34.Nc3=+; 32...ed4?! 33.Ra6=) 0-1. blitzbullet (2510) - Kelevra317 (2775), Rated Bullet game, lichess.org, 2018.

    5.c4 Bf5

    6.d4 Bd6 =.

    6.cd5 Qd5 7.d4 =.

    6.Nf3 Nd7 7.d4 e4 8.Nfd2 Be6 9.Be2 f5 10.Nc3 Ngf6 11.0-0 Bd6 12.b5 0-0 13.a4 (13.c5 Bb8=) 13...Ng4 14.h3 Qh4 15.Ba3 Bc7? (better 15...Ba3 16.Ra3 Ngf6=) 16.Bf8 Rf8 17.cd5 cd5 18.Rc1 Bb8 (18...Bh2!? 19.Kh1 Bd6+/-) 19.Qb3+- Ndf6 20.Nd1 f4 21.f3?? (better 21.Ne4 Nh2 22.Nf6 (22.Kh2? f3 23.Kg1 fe2-+) 22...Rf6 23.b6 (23.Kh2 f3 24.Kg1 fe2-+) 23...Nf1 24.Qb5+=) 21...fe3 (21...Qg3 22.hg4 fe3-+) 22.fg4?? (22.Ne4 Ne4 23.fg4-+) 22...ed2 (better 22...Qg3 23.Rf4 ed2-+ (23...Qf4?! 24.Nf1-/+; 23...Bf4?! 24.Nf1 Qe1 25.Rc2-+)) 23.Rc2 e3?? (better 23...Qe1! 24.Qe3 Ng4 25.hg4 Bf4 26.Qd2 Qd2 27.Rd2 Bd2 28.Rf8 Kf8-+) 24.Qe3+/- (24.Ne3 Qg3 25.Bd1 Ne4 26.Rf8 Kf8 27.Qa3 Kg8 28.Rd2 Nd2-+) 24...Ne4 25.Nf2?? (better 25.Rd2 Bf4 26.Rf4 Rf4 27.Qf4 Qe1 28.Kh2 Qd2 29.Qd2 Nd2 30.Ne3+/-) 25...Bf4-/+ 26.Qd3 Ng3 (26...Qg3!? 27.Qg3 Ng3-/+) 27.Rd1= h5 (27...Nf5 28.Rcd2 Ne3= (worse 28...Bd2 29.gf5 Ba5 30.fe6 Qf2 31.Kh1+-)) 28.Rcd2?? (better 28.Bf3+/-) 28...Bd6?? (better 28...Bd2 29.Rd2 Rf2 30.Kf2 Ne4 31.Kg1 Qe1 32.Bf1 Nd2 33.gh5 Ne4-+) 29.Bf3 (29.Qg6 Rf6 30.Qe8 Kh7 31.Bd3 g6+-) 29...hg4 30.Bg4 Nf5 (30...Bf7 31.Rc2+-) 31.Re2 Bd7 32.Rde1 (32.Qb3 Kh8+-) 32...g6 33.Re6?? (better 33.Bf3 Qf4 34.Bd5 Kh8 35.Ng4 (35.Bb7?? Qh2 36.Kf1 Ng3 37.Qg3 Qh1) 35...Qd4 36.Qd4 Nd4 37.Re4+-) 33...Be6 (33...Bg3 34.R6e2 Bd6+-) 34.Re6+/- Qg3?? (better 34...Kg7!?+/-) 35.Qg3 (better 35.Rg6 Kh8 36.Bf5 Qh2 37.Kf1+-) 35...Bg3 36.Rg6 (36.Bf5!? Bf2 37.Kf2 Rf5 38.Ke3 Kf7+-) 36...Kh7 37.Bf5?? (better 37.Rg5 Bf2 38.Kf2 Nd4 39.Kg3+-) 37...Bf2-+ 38.Kf1 (38.Kh2 Rf5 39.Rd6 Bd4 40.Rd7 Kg6-/+) 38...Rf5 39.Rd6?? (better 39.g4 Rf7 40.Re6 Bd4 41.Ke2-+) 39…Bg3 (39...Bg3 40.Ke2 Bd6-+) 0-1. jhonores (2180) - pierodai2013 (2195), Rated Blitz game, lichess.org, 2020.

    6.cd5 cd5

    7.d4 e4 8.Nc3 Be6 9.f3 ef3 10.Nf3 a5 11.b5 +=.

    7.d4 e4 8.Nc3 Be6 9.f3 f5 10.fe4 de4 11.d5 Bf7 12.Qd4 Nf6 d5 seems the pivot of the position (12...Nd7!?+=) 13.Bb5 (13.Qe5 Qe7 14.Qf5 Nbd7+/–) 13...Nbd7 14.d6 (14.Qe5! Qe7 15.Qf5+/–) 14...a6?? (14...a6 15.Qe5 Be7 16.de7 Qe7 17.Bd7 Nd7 18.Qf5 Bg6+–; better is 14...Qb6 15.Qb6 ab6+=) 1–0. pierred (2760) – jupiter (2425), net–chess.com, 2008.

    7.d4 e4 8.Nc3 Be6 9.f3 f5 10.fe4 fe4 11.Qh5 Bf7 (11...Ke7 12.Rc1+=) 12.Qe5 Ne7? (better is 12...Qe7!?+=) 13.Nb5+– Na6?? (better is 13...Kd7 14.Nd6 Bg6 15.Nb7 Qb6 16.Nc5 Ke8+–) 14.Nd6 Qd6 15.Qd6 Nc6 (15...Rc8 16.Bb5 Nc6 17.Qe5 Kd8 18.Bc6 Rc6 19.Ne2+–) 16.Qg3 0-0-0 (16...Nab4 17.ab4 Bb4 18.Kd1+–) 17.b5 Nd4 (17...Nd4 18.Rc1 Nc6 19.bc6 Bg6+–; 17...Nab8 18.Qg4 Rd7 19.bc6 Nc6 20.Rc1+–) 1–0. pierred (2760) – jupiter (2425), net–chess.com, 2008.

    7.d4 e4 8.Nc3 Be6 9.f3 f5 10.Nh3 ef3 11.Qf3 Nc6 =.

    7.d4 e4 8.Nc3 Be6 9.Nh3 Bd6 +=.

    7.d4 e4 8.Nc3 Ne7 9.Rc1 =.

    5.d4 ed4

    6.Qd4 a5 7.b5 =.

    6.Qd4 Bd6 7.Nf3 Ne7 (7...a5 8.Bd3=) 8.c4 Nd7 (8...c5 9.bc5 Nbc6 10.Qc3 Bc5 11.Nbd2+=) 9.Nc3 (9.cd5 cd5 10.Nc3 Ne5=) 9...Ne5 10.cd5 Nf3 11.gf3 Be5 12.Qd2 (12.Qc4 Nd5 13.Rg1 g6=) 12...Nd5 13.Nd5 (13.Rg1 Nc3 (worse is 13...Bh2 14.Rg7 Be5 15.Nd5 Qd5 16.Qd5 cd5 17.Be5 fe5 18.Rd1+/–) 14.Bc3 Qe7=) 13...Bb2 (13...Bb2 14.Qb2 Qd5=). Kroll,Ove – From,Sigfred, Denmark, 1980.

    6.Bd4 Nh6 7.c4 (7.Bd3 Bg4 8.Nf3 Nf5+=) 7...dc4 (7...Nf5 8.Nf3=) 8.Bc4 (8.Qh5 g6 9.Qh4 Nf5 10.Qf6 Nd4 11.Qd8 Kd8 12.ed4 b5-/+) 8...a5 (8...Nf5 9.Nf3+=) 9.b5 (9.Qh5!? g6 10.Qh4+=) 9...c5= 10.Bc3 Qd1 11.Kd1 Nd7 (11...Bd6 12.Nf3=) 12.Nd2 Nb6 13.Ngf3 Nf7 (13...Bf5 14.Ke2=) 14.a4 (14.Bd3 Be6=) 14...Bd6 (14...Nd6 15.Bd3=) 15.Bb3 Ke7 (15...0-0 16.Nc4 Be6 17.Nfd2+=) 16.Ke2 (16.Rc1 Be6=) 16...Bg4 (16...Be6 17.Be6 Ke6 18.Ne4=) 17.h3 Bh5 (17...Be6 18.Be6 Ke6 19.Nb3=) 18.g4+= Bg6 19.h4 (19.Nh4 Ng5+=) 19...h6 (19...h5 20.g5=) 20.g5 (20.h5 Bh7+=) 20...hg5 21.hg5 Black creates threats along the open h–file 21...Ne5 (21...Ng5 22.Rh8 Rh8 23.Ng5 fg5 24.Ba5+=) 22.gf6 (22.e4 Bh5=) 22...gf6 23.Ne5 Be5 24.Be5 (24.Rh8 Rh8 25.Rg1 Bc3 26.Rg6 Bd2 27.Rg7 Kd6 28.Rb7 Na4 29.Kd2 Rh4+/–) 24...fe5 25.Rag1 Kf6 26.Rg6? (26.e4 Rh1 27.Rh1 Rd8=) 26...Kg6+= 27.Rg1 Kh6 28.Rh1 (28.Nf3 e4 29.Ne5-/+) 28...Kg7-/+ 29.Rg1 Kf8 30.Rg6 Nd7 31.Bd5 (31.Be6 Ke7 32.Bd7 Kd7 33.Rg7 Ke6 34.Rb7 Rh4=) 31...Rb8 (31...Ra7 32.b6 Ra8 33.Bb7-/+) 32.b6 Rh7 (32...Ke8 33.Nc4 Nf8 34.Rg7+=) 33.Nc4 (33.Rg8 Ke7 34.Rb8 Nb8 35.Bb7 Rh6-/+) 33...Rg7 34.Rd6 Ke7 35.Re6 The isolani on e5 becomes a target 35...Kf8 36.e4 (36.Na5 Rg4=) 36...Rh7 (36...Re7!?+=) 37.Ne5 Ne5 38.Re5 Rd8 39.Rg5 (39.Bc4 Rd4 40.Rc5 Re4 41.Kd3 Rf4 42.Rc8 Kg7+=) 39...Rg7 40.Rh5 (better is 40.Rg7 Kg7 41.Kd3=) 40...Ke7 (40...Rd6 41.Bc4=) 41.f4 (41.Bb7 Rb8 42.Re5 Kf6 43.Rf5 Ke7 44.Ba6 Rb6 45.Bb5=) 41...Rd6= 42.f5 Kd7 43.Be6 Kc6 (43...Ke8 44.f6 Rg2 45.Kf3 Re6 46.Kg2 Re4 47.Rc5 Ra4 48.Rc7=) 44.Rh6 Kb6 45.f6 Rc7 (45...Rg2 46.Kf3 Rgd2 47.Bc4=) 46.Bc4 (46.Bb3 c4 47.f7 Rh6+/–) 46...Rc8 47.Ke3 Rd4 48.Bb5 Ka7 (48...Rd1 49.Bc4=) 49.Rg6 (49.e5 Rd5 50.Ke4 Rd4 51.Kf5 c4+=) 49...Rd1= 50.f7 Rf8 51.Rg7 Kb6 52.Kf4 Kc7 53.Kf5 Kd8 (53...Kd6 54.Kf6 Re1 55.Rg8 Rf7 56.Kf7 Re4 57.Rb8+/–) 54.Ke6 Rh1 55.Kd6 Rh6 56.Kc5 Ke7 57.Be8 (57.Bc4 Rh5 58.Kb6 Re5+/–) 57...b6 (57...Rd6 58.e5 Rd1 59.Rg5+=) 58.Kd4 (58.Kd5 Rd6 59.Kc4 Rd1+=) 58...Rd6 59.Ke5 Re6 60.Kd5 Rd6 ½–½. Pommerel,Wim H – Kuhlmann,Antonius Egidius J, CiF, 1993.

    5.d4 Nd7

    6.c4 Ne7 7.Nc3 dc4 8.Ne4 Nd5 9.Bc4 N7b6 10.Bb3 f5=.

    6.c4 Ne7 7.c5 ed4 8.ed4 White gets the initiative. 8...b6 (8...Ng6 9.b5=) 9.Qc2 (9.Bd3 Rb8 10.Qc2 bc5 11.bc5 Ba6 12.Ba6 Qa5 13.Nc3 Qa6=) 9...bc5 10.bc5 Nc5? (better 10...Rb8=) 11.dc5 g6? (11...Bf5 12.Bd3 Qa5 13.Nd2 Bd3 14.Qd3+–) 12.Nd2 (better 12.Bf6!? Qa5 13.Qd2 Qd2 14.Nd2 Rg8+–) 12...Bf5 13.Bd3 Bd3 14.Qd3 Bg7 (14...Nf5 15.Nb3+–) 15.0-0-0 (15.Ngf3!? Qa5+–) 15...0-0 16.Ne2 Rb8 17.Nd4 Qd7 18.Rdg1 (better 18.Rhe1+–) 18...Qd6?? (18...Qb7 19.Bc3+–) 19.N4b3 (better 19.cd6 Nf5 20.Nc6 Nd6 21.Qd5 Nf7 22.Nb8 Rb8 23.Ne4+–) 19...Qc7 20.h4 g5? (20...Rfe8+–) 21.hg5 fg5 (21...Ng6 22.Rh7 Nf4+–) 22.g3 (better 22.Qh7 Kf7 23.Bg7 Rb3 24.Be5 Ke8 25.Bc7+–) 22...Bb2 23.Kb2 Threatening mate... how? 23...Rb3? (better 23...Ng6 24.Qe3 g4+–) 24.Kb3 (worse 24.Nb3 Rf2 25.Kc1 Nf5+–; worse 24.Qb3 Rb8 25.Re1 Nf5=+) 24...Qb7 (24...Ng6 25.Qe3+–) 25.Kc3 (better 25.Kc2 Ng6+–) 25...d4 (25...Nf5+–) 26.Kd4 (26.Qd4 Nd5 27.Kc2 Qf7+–) 26...Qd7?? (26...Rd8 27.Ke3 Rd3 28.Kd3 Qb5 29.Nc4 Qc5–+) 27.Kc4+– Qd3 (27...Nd5 28.Ne4 g4 29.Ng5+–) 28.Kd3 Rd8 29.Kc2 Rd5 30.Nb3 (30.Ne4 Kg7+–) 30...Nf5 (30...Re5 31.Re1 Re1 32.Re1+–) 31.f4 (31.Rd1!? Re5+–) 31...Nd4 (31...a5 32.a4 Nd4 33.Nd4 Rd4 34.Rh5+–) 32.Kc3 (32.Nd4!? Rd4 33.Kc3 Ra4+–) 32...Nb3 (32...Ne2 33.Kc4 Ng1 34.Rg1+–) 33.Kb3 Rc5 34.fg5 (34.Re1 gf4 35.gf4 Rb5 36.Kc4 Ra5+–) 34...Rg5 (34...Rb5 35.Ka2+–) 35.a4 (35.Rh6 c5+–) 35...a6 (35...Kg7 36.Rh4+–) 36.g4 Rg7 37.Rh6 Rg5 38.Kb4 Kg7 39.Rh5 Kg6 (39...a5 40.Kc4 Kg6 41.Rg5 Kg5 42.Kc5+–) 40.a5 (better 40.Rg5 Kg5 41.Kc5+–) 40...Re5 (40...Rg4 41.Rg4 Kh5+–) 41.g5 (better 41.Re5 Kf6 42.Rc5+–) 41...Re4 (41...Rb5!? 42.Ka4 Kh5 43.Rh1 Kg5 44.Rh7 c5=) 42.Kc5+= Re5?? (42...Kh5 43.Kb6+=) 43.Kc6 (43.Kd6 Ra5 44.Rh6 Kg7+–) 43...Ra5?? (43...Kh5 44.Kb6 Re6 45.Kb7+=) 44.Rh7 (better 44.Rh6 Kg7 45.g6 hg6 46.Rhg6 Kf7 47.Rg7 Kf8 48.Ra7+–) 44...Kh7= 45.g6 Kh6?? (better 45...Kg7=) 46.g7+– Re5 (46...Rg5 47.Rg5 Kg5 48.g8Q Kf6 49.Kd5 Kf5 50.Qf7 Kg4 51.Ke4 Kg3 52.Qf3 Kh2 53.Qf2 Kh3 54.Kf4 a5 55.Qg3) 47.g8Q Re7 (47...Rc5 48.Kc5 Kh5 49.Qg5) 48.Qh8 (48.Qg6) 48...Rh7 49.Qf8 (49.Qf6 Kh5 50.Qg5) 49...Kh5 50.Qf3 Kh6 (50...Kh4 51.Qg4) 51.Qf4 (51.Qh1) 51...Kh5 52.Rh1 (52.Qg5) 52...Kg6 53.Qg4 Kf6 54.Rh7 (54.Rf1 Ke5 55.Qf4 Ke6 56.Qd6) 54…a5 1–0. pat_cash87 – Ritwiksaha03, lichess.org, 2020.

    6.c4 Ne7 7.Nd2 Nf5 (7...a5 8.b5 Ng6 9.cd5 cd5 10.Qh5 Qe7+=) 8.de5 (8.cd5 cd5 9.de5 Ne5 10.Ngf3 Bd6+=) 8...Ne5 (worse is 8...fe5 9.cd5 cd5 10.Ndf3+/– d4+/–) 9.Ngf3 Bd6 10.c5 (10.cd5 cd5+=) 10...Bc7 11.Be2 0-0 12.0-0 Re8 13.Qc2 Be6 14.Rfd1 Qb8 15.h3 a5 16.g4 Nh6 17.Nd4 Bf7 18.f4 Ng6 19.Kf2 Nh4 20.Bd3 Bg6 21.Re1 ab4 22.Bg6 (22.ab4? Ra1 23.Ba1 Bf4–+) 22...hg6 23.ab4 Ra1 24.Ra1 (24.Ba1? Bf4 25.Nf1 Nf7–+) 24...Bf4 (better is 24...Nf7!? 25.N2f3 Nf3 26.Nf3 g5 27.fg5 Ng5 28.Ng5 fg5=) 25.ef4+/– Qf4 26.N2f3 Qe3 27.Kg3 Nf3 28.Nf3 g5 29.Qc1 Qe2 30.Qe1 Re3 31.Qe2 Re2 32.Bd4 Kf7 33.Ra7 Re7 34.Bb2 Kg6 35.b5! Ng8 (35...cb5 36.c6) 36.b6 Re2 (36...Nh6+–) 37.Bd4 Re7 38.h4 gh4 39.Nh4 (39.Nh4 Kf7 40.Nf5+–; 39.Kh4?! Nh6+–) 1–0. Ventimiglia,Charles (1745) – Stanton,Tina, IECC, 1998.

    6.c4 Ne7 7.cd5 cd5 8.Nc3 a5 9.b5 ed4 10.Qd4 Ne5+=.

    6.c4 Ne7 7.cd5 Nd5 8.de5 fe5 9.Nc3 Nc3 10.Bc3 Be7+=.

    6.c4 Ne7 7.Nf3 e4 8.Nfd2 f5 9.Nc3 Nf6 10.Be2 dc4=.

    6.de5 fe5 7.c4 a5 8.b5 Ngf6 9.Nf3 Bd6 10.Nc3 e4 =.

    6.de5 fe5 7.Nf3 Bd6 8.c4 Ngf6 9.cd5 cd5 10.Nc3 e4 =.

    6.de5 fe5 7.Nf3 e4 8.Nd4 Ne5 9.c4 Bg4 10.Qc2 Nf6 =.

    6.de5 fe5 7.Nf3 e4 8.Nd4 Ngf6? 9.c4 (9.Ne6 Qb6 10.Nc3+– (10.Nf8?! Nf8 11.Bf6 gf6+=)) 9...b6?? (better is 9...Ne5 10.cd5 cd5+=) 10.cd5 (10.Ne6 Qe7 11.Nc7 Kf7 12.Na8 Bb7+–) 10...cd5? (better is 10...Nd5 11.Qh5 g6 12.Nc6 gh5 13.Nd8 N7f6+–) 11.Nd2 (better is 11.Ne6 Qe7 12.Nc7 Kd8 13.Na8+–) 11...Bd6 12.Ne6 (better is 12.Bb5!? Bb7 13.Nc6 Bc6 14.Bc6+–) 12...Qe7= 13.Nd4 0-0 14.Bb5 Ne5 15.0-0 Bd7 16.Bd7 Qd7 17.Rc1? (better is 17.Qb3 Qg4 18.Rad1=) 17...Nd3–+ 18.Rc2 Rac8 (18...Ng4 19.g3 Ngf2–+) 19.Rc8+= Rc8 20.N2b3?? (better is 20.Qb3+=) 20...Nb2–+ 21.Qb1 Nd3 22.Rd1 1–0. Fournier,Frederic – bellabella(C), Active, 2008.

    5.d4 e4

    6.c4 a5 7.b5+/– A) 7...Kf7 8.Nc3 (8.cd5 cd5 9.Nh3 Ne7 10.Nc3 g6 11.Nf4 g5 12.Nh5 Be6 13.f3; 8.Nh3 Bh3 9.Qh5 g6 10.Qh3 cb5 11.cd5 Qd5 12.Nc3 Qb3 13.Rb1; 8.bc6 bc6 9.Nc3 Ne7 10.Nh3 g6 11.Nf4 Bh6 12.Be2 Bf4 13.ef4) 8...Ne7 9.Nh3 g6 10.Be2 cb5 11.Nb5 Nbc6 12.Nf4 Kg7 13.0-0; B) 7...Ne7 8.Nc3 Kf7 9.Nh3 g6 10.Nf4 Bh6 11.bc6 bc6 12.Be2 Qc7 13.g3.

    6.c4 Ne7 7.Nc3 A) 7...Kf7 8.Nh3 g6 9.Qb3 Bh3 10.gh3 Kg7 11.Be2 Qd7 12.b5 dc4 13.Bc4; B) 7...Na6 8.cd5 (8.Nh3 Kf7 9.cd5 cd5 10.Rc1 Nc7 11.Nf4 a5 12.b5 b6 13.h4; 8.Rc1 Kf7 9.cd5 cd5 10.Nh3 Nc7 11.Nf4 a5 12.b5 b6 13.h4) 8...cd5 9.Nh3 Kf7 10.Rc1 g6 11.Nf4 Nc7 12.Be2 Ne6 13.0-0; C) 7...Bf5 8.Nge2 (8.Nh3 Kf7 9.g4 Be6 10.g5 Qd7 11.gf6 Bg4 12.fg7 Bg7 13.Ng5) 8...Kf7 9.Ng3 Be6 10.Be2 Nd7 11.0-0 f5 12.f3 ef3 13.Rf3; D) 7...a5 8.b5 Kf7 9.Nh3 g6 10.cd5 cd5 11.Nf4 Bh6 12.Be2 Qd6 13.Qd2.

    6.c4 Ne7 7.c5 h5 8.Qc2 Be6 9.Nd2 Nd7 10.0-0-0 (10.Qb3 Bf5=) 10...Nf5 11.f3?? (better 11.Ne2=) 11...Ne3–+ 12.Qb1 Nd1 13.Kd1 ef3 (better 13...f5–+) 14.Bd3?? (14.Ngf3 Qc7 15.Bd3–+) 14...fg2 15.Bg6 Bf7 (better 15...Ke7 16.Be4 de4 17.Qe4 gh1R 18.Qh1 Bd5–+) 16.Kc2 (16.Be4 gh1R 17.Bh1–+) 16...gh1Q (better 16...Bg6 17.Kc1 Bb1 18.Kb1 gh1Q–+) 17.Qe1 Qe7 18.Bf7 Kf7 19.Ndf3 0–1. pat_cash87 – Hadi1971 (1735), lichess.org, 2020.

    6.c4 Ne7 7.Ne2 a5 8.b5 cb5 9.cb5 Kf7 10.Nbc3 Qd6 11.Qb3 Bf5 12.Nf4 Nd7 13.Be2.

    6.c4 Ne7 7.Nh3 a5 (7...Na6 8.Nc3 Kf7 9.cd5 cd5 10.Rc1 Nc7 11.Nf4 Bf5 12.g4 Bd7 13.Bg2) 8.b5 Bh3 9.Qh5 g6 10.Qh3 Qd7 11.Qd7 Nd7 12.Nc3 f5 13.Be2.

    6.c4 h5 7.c5 (7.Nc3 Ne7+=) 7...Bg4 8.Qc2 g5 9.Nd2 Qc7 10.f3 ef3 11.Ngf3 Nd7 12.0-0-0 (12.Bd3!?+=) 12...h4 13.Bd3 0-0-0 14.Rdg1 (14.Qa4 Kb8=) 14...Re8=+ 15.e4 Bg7 (15...de4 16.Be4 Ne7 17.Re1=) 16.ed5 cd5 17.Bf5 (17.Re1 Ne7=) 17...Bf5=+ 18.Qf5 Kb8 (18...Ne7!? 19.Qe6 Rhg8=) 19.Qd5 Ne7 (19...g4 20.Re1 Rd8 21.Ng1+=) 20.Qf7+– Nf5 (20...Bh6!?+–) 21.Re1 Ref8? (21...Qc8!?+–) 22.Qg6 Qf4?? (22...Nc5 23.bc5 (worse 23.Qf5 Nd3 24.Kb1 Ne1 25.Re1 Rc8+–) 23...Qd7 24.g4 hg3 25.hg3 Ng3 26.Rh8 Rh8 27.Kb1+–) 23.c6! Rh6 (23...bc6 24.Re4) 24.c7?? (better 24.Re8 Kc7 25.cd7 Kd7 26.Qg7 Ng7 27.Rf8+–) 24...Kc7 (better 24...Qc7 25.Kb1 Rg6 26.Re4–+) 25.Ne5 (25.g3 Qf3! (25...Rg6?! 26.gf4 g4 27.Ng1-/+) 26.Nf3 Rg6–+) 25...Rg6 (better 25...fe5 26.Qh6 Nh6 27.de5 Be5 28.Be5 Ne5–+) 26.Ng6 Qd6 (26...Qg4 27.Nf8 Bf8 28.Rhg1–+) 27.Rhf1 (27.Nf8 Bf8 28.Re4 Qd5–+) 27...Nd4 28.Bd4 (28.Nf8 Bf8 (28...Qf8?! 29.Bd4 Qd6 30.Nb3-/+; 28...Nf8 29.Bd4 Qd4 30.Re7 Nd7 31.Rg7–+) 29.Kd1 Ne5–+) 28...Qd4 29.Re4 (29.Nf8 Qc3 (29...Nf8?! 30.Re7 Nd7 31.Rg7–+) 30.Kd1 Bf8–+ (30...Nf8?! 31.Re7 Nd7 32.Rg7–+)) 29...Qa1 30.Kc2 Qa3 (30...Qa2 31.Kd1 Rf7 32.Re3–+) 31.Rc4 (31.Nf8 Qa4 32.Nb3 Bf8–+) 31...Kb6 (better 31...Kd8 32.Nf8 Bf8 33.Rb1–+) 32.Rf5 (32.Nf8 Qa2 33.Kc1 Bf8–+) 32...Rd8 (32...Qa2!? 33.Kd1 Qa4 34.Kc1–+) 33.Ra5 Qe3 34.Nb3 (34.Rd5 Qe8 35.Rd6 Kb5 36.Kb3–+) 34...Qe2 35.Kc3 f5 36.Nd4 Bd4 37.Rd4 Qe3 (37...Rc8 38.Rc5 Nc5 39.Rd6 Kb5 40.Rd5 Qc4 41.Kb2 Qd5 42.Nf8 Nd3 43.Ka3 Rc3) 38.Rd3 Qc1 39.Kd4 Nf8 (39...Qb2 40.Rc3 Qd2 41.Rd3 Qb4 42.Ke3 Re8 43.Ne5 Ne5 44.Rb5 Kb5 45.Rd5 Kc4 46.Rd4 Kc3 47.Rc4 Nc4 48.Kf2 Qc5 49.Kf3 Qe3) 40.Rd5 Rd5 41.Kd5 Ng6 (41...Ng6 42.Rh3 Nf4 43.Ke5 Nh3 44.Kf5 Qc2 45.Ke6 Qg2–+) 0–1. pat_cash87 – Hadi1971 (1735), lichess.org, 2020.

    6.c4 f5

    7.Qb3 Nf6 8.Nc3 a5 9.b5 a4 10.Na4 cb5 11.cb5 Bd6 12.Nh3 0-0 13.Nc3.

    7.Nc3 Nf6+/– 8.Nh3 (8.Be2 Be6 9.c5 Ng4 10.Nh3 Qh4 11.Qd2 Kf7 12.Bg4 fg4 13.Nf4) 8...a5 9.b5 Bd6 10.c5 Be7 11.Be2 0-0 12.0-0 cb5 13.Nb5.

    7.Nd2 Bd6 8.Nh3 (8.c5 Bc7 9.Nh3 Nf6 10.Be2 0-0 11.0-0 Qe7 12.Qb3 Nbd7 13.b5; 8.Be2 Nf6 9.Nh3 0-0 10.0-0 Na6 11.c5 Bc7 12.Qb3 Qe7 13.Nf4) 8...Nf6 9.c5 Bc7 10.Be2 0-0 11.0-0 Qe7 12.Nf4 Nbd7 13.b5.

    7.Nd2 Nf6+= 8.Ne2 (8.Nh3 Be7+= (8...a5 9.b5 Be7 10.Be2 0-0 11.0-0 Qc7 12.Rc1 a4 13.g3) 9.Be2 0-0 10.0-0 Na6 11.Qb3 Nc7 12.f3 Ne6 13.cd5; 8.Be2 a5 9.c5 ab4 10.ab4 Ra1 11.Qa1 Na6 12.Qa4 b5 13.Qb3; 8.c5 a5 9.Nh3 ab4 10.ab4 Ra1 11.Qa1 Na6 12.Qa4 b5 13.Qb3) 8...Bd6= 9.Qb3 (9.Nf4 0-0= 10.Be2 Bf4 11.ef4 Be6 12.0-0 Nbd7 13.Qc2; 9.Nc3 0-0 10.Be2 Be6 11.0-0 Qc7 12.g3 Nbd7 13.Qb3) 9...Be6 (9...0-0 10.Nc3 Be6 11.Be2= Nbd7 12.0-0 Qe7 13.b5) 10.Nc3 (10.c5 Bc7= 11.Nf4 Bf4 12.ef4 Qc7 13.g3; 10.Nf4 Bf4 11.ef4 Qc7 12.g3 0-0 13.c5) 10...0-0 11.cd5 (11.Be2 Nbd7= 12.0-0 Qe7 13.Rfe1) 11...cd5 (worse is 11...Nd5 12.Bc4 Bf7 (12...Bc7 13.Rc1) 13.Nd5+= (worse is 13.Bd5 cd5 14.f4 Nc6-/+)) 12.Be2 Nc6 13.0-0 Bf7 (13...a6 14.Rac1=) 14.Rfc1 (14.Rac1 Rc8=) 14...f4+= 15.b5 (15.Nb5 Be7+=) 15...Ne7 16.a4 (16.Nf1 Ng6+=) 16...Nf5 (16...fe3 17.fe3 Nf5 18.Nd1-/+) 17.Nd1 Qb8 18.h3 f3 (18...Be6 19.ef4 Bf4 20.Ne3-/+) 19.gf3= Bh2 20.Kf1 (20.Kh1 Ng3 21.Kg2 Ne2 22.Rc2–+) 20...Ng3!-/+ 21.Ke1 (21.fg3 Qg3) 21...Ne2 (21...Bh5 A) 22.fg3?? Qg3 23.Nf2 Qg1 (23...ef3?! 24.Nf1 Qg1 25.Bd3–+) 24.Nf1 Bg3–+; B) 22.Nc3 Ne2 23.Ke2 ef3 24.Kd1-/+) 22.Ke2 ef3 23.Ke1 (23.Nf3? Bh5 24.Rc5 Kh8–+) 23...Bh5 (23...Ne4 24.Nf3 Be6–+) 24.Ba3? (better is 24.e4 Bf4 25.e5 Bd2 26.Kd2 Ne4 27.Ke1-/+) 24...Re8–+ 25.Nf1 Kh8 (25...Bc7 26.Nc3 Qd8 27.Nd2–+) 26.Nb2 Bg6 (26...Bc7 27.Nd3–+) 27.Nd3 Bd3 28.Qd3 Ne4 29.Ra2 (29.Qd1 Bg1 30.Qf3 Bf2 31.Kd1 Qd8–+) 29...Bg1 30.Rac2 (30.Qd1 Qd8 31.Bb4–+) 30...Qd8 31.Qb3 Qh4 32.Qd5 (32.Qb2–+) 32...Bf2 33.Kd1 Qh3 (33...Qh3 34.Qc4 Qh1 35.Rf2 Nf2 36.Kc2 Rac8–+) 0–1. Jimenez Martinez,Xavier – Marholev,Dimitar (2350), I Fincas Mediterranea, Castelldefels ESP, 2004.

    7.cd5 cd5 8.Bb5 (8.Qb3 Nc6 9.Nc3 Nf6 10.Nh3 Bd6 11.Rc1 f4 12.Nf4 Bf4 13.ef4; 8.Nh3 Nf6 9.Nc3 Bd6 10.Be2 Nc6 11.Nf4 Bf4 12.ef4 0-0 13.0-0; 8.Be2 a5 9.b5 Nf6 10.Nh3 Bd6 11.Nc3 0-0 12.0-0 Nbd7 13.Qb3; 8.Nc3 Nf6 9.Be2 a5 10.b5 Bd6 11.Nh3 0-0 12.0-0 Nbd7 13.Rc1) 8...Nc6 9.Nc3 Nf6 10.Nh3 Bd6 11.0-0 0-0 12.Qb3 Be6 13.Ng5.

    7.Nh3 A) 7...Nf6 8.Be2 (8.c5 Be7 9.Nc3 0-0 10.Be2 Na6 11.0-0 Nc7 12.Nf4 Ne6 13.b5; 8.Nc3 Bd6 9.Be2 Nbd7 10.cd5 Nd5 11.Nd5 cd5 12.0-0 0-0 13.Nf4) 8...a5 9.ba5 Be7 10.Nc3 Qa5 11.Nf4 Na6 12.cd5 Nd5 13.Nfd5; B) 7...Bd6 8.Nc3 (8.Be2 Nf6 9.Nc3 0-0 10.Qb3 Bc7 11.Rc1 a5 12.b5 Ra7 13.cd5; 8.c5 Bc7 9.Nc3 Nf6 10.Be2 0-0 11.Qd2 Ng4 12.Nf4 g5 13.Bg4; 8.Qb3 Nf6 9.Nc3 a5 10.c5 ab4 11.ab4 Ra1 12.Ba1 Bc7 13.Be2) 8...Nf6 9.c5 Bc7 10.Be2 0-0 11.0-0 Qe7 12.Qc2 Nbd7 13.a4.

    5.Be5?? fe5–+

    6.Qh5 Kd7 7.Qe5 Qf6 8.Qf6 Nf6 9.c4 a5 (better 9...dc4 10.Bc4 b5-+) 10.c5? (better 10.b5-/+) 10...ab4-+ 11.d4 ba3 12.Na3 (12.Bd3 Ke8-+) 12...b6! 13.cb6 (13.Bd3 bc5 14.Nc2 Ra1 15.Na1 cd4 16.ed4 c5-+) 13…Ra3 (13...Ra3 14.Ra3 Ba3-+) 0-1. blitzbullet (2490) - manitodeplomo (2410), Rated Bullet game, lichess.org, 2016.

    6.Qh5 Kd7 7.Qe5 Nf6–+.

    6.Qh5 Kd7 7.g3 Bd6 (7...e4 8.d3–+) 8.Nc3 (8.Qg4 Ke8 9.Qg7 Qf6 10.Qf6 Nf6–+) 8...Kc7 9.b5 Nf6 10.Qg5 (10.Qf7 Qd7 11.Qd7 Nbd7 12.bc6 bc6–+) 10...Qe7 11.bc6 bc6 (worse is 11...Nc6 12.Qf6 gf6 13.Nd5 Kd8 14.Ne7 Ke7 15.Bg2–+) 12.Nge2 (12.a4 Kd8–+) 12...Rf8 (12...Kd8 13.a4–+) 13.d4 Ng4 (13...Kd8 14.de5 Be5 15.Ra2–+) 14.Qe7 Be7 15.de5 (15.Nd1 Nd7–+) 15...Ne5 (15...Nf2 16.Rg1–+) 16.f4 (16.Nd4 Nf3 17.Nf3 Rf3–+) 16...Nc4 17.Kf2 Bc5 (17...Na3 18.Nd4–+) 18.Nd4 Re8 (better is 18...Ne3 19.Ke3 Re8 20.Kd3 Ba6 21.Ndb5 Bb5 (worse is 21...cb5 22.Nd5 Kd6 23.Bg2–+) 22.Nb5 cb5–+) 19.Bc4 Bd4 (19...dc4!? 20.Kf3–+) 20.ed4-/+ dc4 21.d5 (better is 21.Rae1!? Re1 22.Re1–+) 21...Bf5–+ 22.Rac1 Nd7 23.Rhd1 Nc5 (23...Kd6 24.dc6 Kc6 25.Rd5–+) 24.Rd4 Ne4 25.Kg1?? (25.Ne4 Re4 26.d6 Kd7 27.Re4 Be4 28.c3–+) 25...Nc3 26.Rc4 Ne2 (26...Ne2 27.Kf2 Nc1 28.Rc6 Kd7–+) 0–1. Horsak,Antonin (1895) – Brozova,Renata (1710), Plzen op–B, 2001.

    5.Nf3 Bd6

    6.Nc3 a5 7.b5 Ne7 8.Rb1 c5 9.Be2 e4 10.Nh4 =.

    6.Nc3 Qc7 7.Be2 (7.e4 d4 8.Nb1 a5 9.c3 dc3 10.dc3 Ne7) 7...Be6 (7...Bf5 8.d3 Be6 9.0-0 Ne7 10.e4 d4; 7...Ne7 8.e4 d4 9.Na2 f5 10.Bc4 c5; 7...f5 8.Ra2 Nf6 9.h3 0-0 10.0-0 b5) 8.e4 d4 9.Nb1 Nd7 10.c3 dc3.

    6.Nc3 Be6 7.Be2 (7.Bd3 Ne7 8.0-0 0-0 9.e4 d4 10.Ne2+=) 7...Ne7 8.0-0 0-0 9.e4 d4 10.Nb1 +=.

    6.Nc3 f5 7.Be2 Qc7 8.h3 Nf6 9.0-0 0-0 10.d3 +=.

    6.Nc3 Bg4 7.Be2 Ne7 8.0-0 0-0 9.e4 d4 10.Nb1 =.

    6.Nc3 Nh6 7.Be2 a5 8.b5 e4 9.Nd4 c5 10.Nb3 =.

    6.c4 b6 7.d4 ed4 (7...e4!? 8.Nfd2 Ne7=) 8.Nd4+= Be5 9.cd5 Qd5 10.Nc3 Qd6 11.Ne4 Qd5 12.Qc2 Bd4 13.Rd1 Bf5 14.Rd4 Be4 15.Re4 Ne7 16.Bc4 Qg5 17.0-0 Nd7 18.f4 Qh5? (better is 18...Qg6!?+/–) 19.Be2 Qg6 20.Qc6 Rd8 21.f5 Qf7 22.Bc4 Qh5 (22...Kf8 23.Qc7 (23.Bf7?! Nc6 24.Be6 b5+–) 23...Qe8 24.Rd1+–) 23.g4 (better is 23.Qe6 Ne5 24.Be5 fe5 25.f6 gf6 26.Bb5 Rd7 27.Rc4 Kf8 28.Qf6 Ke8 29.Rc8 Nc8 30.Qe6 Ne7 31.Qd7#) 23...Qg5 (23...Qg4 24.Kh1 Qe4 25.Qe4 Rf8+–) 24.Rd1 (24.Re7 Ke7 25.Qe6 Kf8 26.Qf7#) 24...Kf8 (24...Qg4 25.Rg4 Nc6 26.Rg7 Ne7+–) 25.Qe6 1–0. Seifert,Henryk (2160) – Kaminski,Ludwik (1810), Turniej Szachowy Niepelnosprawnych Poland, 2010.

    6.c4 e4 7.Nd4 =.

    6.c4 Be6 7.Qb3 Ne7 8.Nc3 Nd7 9.cd5 (9.Be2 0-0=) 9...cd5 (9...Nd5 10.d4=) 10.Nb5 Bb8 11.Rc1 0-0 12.Be2 a6 13.Nc3 Bf7 14.Qc2 (14.d4 Nb6=) 14...Bd6=+ 15.Na4 (15.h4 Rc8=) 15...Rc8-/+ 16.Qd1 Rc1 17.Qc1 Qc8 (17...Qb8 18.h3-/+) 18.0-0 (18.Qc8 Rc8 19.d4 ed4 20.ed4 b5=) 18...Qc1 (18...Qb8!?=+) 19.Rc1= (worse 19.Bc1 Rc8=+) 19...Rc8 20.Rc8 Nc8 21.d3 (21.d4 Bh5 22.Ne5 Be2 23.Nd7 Bc4=) 21...b5 22.Nc3 Ncb6 23.Nd2 g5 24.Nb3 Kf8 25.Na5 Ke7 26.Kf1 h6 27.Ke1 Be6 28.Kd2 f5 29.g3 Nb8 30.Bd1 d4 (30...Bc7 31.Nb3=) 31.Ne2?? (better 31.ed4 N6d7 32.Nb7+/-) 31...de3= 32.fe3 Nd5 33.Nc3 Nc3 34.Bc3 Bd5 35.Bb3 Ke6 36.Bd5 (36.Bc2 Nd7=) 36...Kd5=+ 37.Bb2 Nc6?? (37...Nd7 38.Ke2=+) 38.Nc6?? (better 38.e4 fe4 39.de4 Ke4 40.Nc6+-) 38...Kc6= 39.e4 f4 40.gf4 ef4 41.Ke2 (41.d4!? Bc7 42.d5 Kd6 43.h3=) 41...g4=+ 42.d4?? (better 42.Kf2=+) 42...f3-+ 43.Ke3 Bh2 44.d5 (44.Kf2-+) 44...Kd6 45.Bg7 (45.Kd3-+) 45...Bg1 46.Kd2 h5 47.Bf8 (47.Bh6 Ke5 48.d6 Kd6 49.Bf4 Ke6-+) 47...Ke5 48.d6 (48.Bc5 Bc5 49.bc5 g3-+) 48...Ke6 49.e5 (49.Be7 g3 50.Bg5-+) 49...Bd4 (better 49...g3 50.d7 Kd7 51.Bc5 Bc5 52.bc5-+) 50.Bg7 h4 (50...f2 51.Bh6 f1Q 52.a4 Qf2 53.Kd1 g3 54.Bd2 Qf3 55.Kc1 g2 56.Be3 Qe3 57.Kc2 g1Q 58.ab5 Qgc1) 51.Kd3 f2 52.Kd4 f1Q (52...f1Q 53.Ke4 Qc4 54.Ke3 g3 55.d7 g2 56.Bh6 g1Q 57.Kf3 Qg3) 0-1. pacal56 (2250) - mecker (2250), Rated Blitz game, lichess.org, 2015.

    6.c4 Be6 7.Nc3 Ne7 (7...dc4 8.Ne4+=) 8.cd5= cd5 9.d3 (9.Nb5 0-0=) 9...a6 10.g3 (10.Be2 0-0=) 10...Nbc6 11.b5 (11.Bg2!?+=) 11...ab5-/+ 12.Nb5? (better is 12.Qb3-/+) 12...Qa5–+ 13.Nc3 d4 14.Qd2 dc3 15.Bc3 Qa4 16.Bg2 0-0 17.0-0 Rfd8 18.Rfb1 Rd7 19.Ne1 Na5 (19...Nd5 20.Bb2–+) 20.Ba5 Qa5 21.Qa5 Ra5 22.Bb7 Ra3 23.Ra3 Ba3 24.Bg2 Bd5 (24...Kf7 25.Kf1–+) 25.e4 (25.Bd5 Nd5 26.Nf3 Kf7–+) 25...Be6 26.Rb8 (26.f4 Nc6–+) 26...Kf7 27.Kf1 Nc6 28.Rb1 Nd4 29.f4 Nb3 30.Ke2 Bg4 31.Bf3 Nd4 32.Ke3 Nf3 33.Nf3 Bc5 34.Ke2 Bf3 35.Kf3 Rd3 36.Ke2 (36.Kg2 Re3–+) 36...Re3 37.Kd2 Re4 (37...Re4 38.Rb7 Kg6 39.fe5 fe5–+) 0–1. Klomp,K – Daamen,Ferry, Valkenswaard, 1992.

    6.c4 Be6 7.c5 Bc7=.

    6.c4 Be6 7.d4 e4 8.Nfd2 f5 9.Nc3 g6 (9...Nf6 10.cd5 cd5 11.Nb5=) 10.cd5+= cd5 11.Nb3 Ne7 (11...Nf6 12.Nc5 Bc8 13.Qb3+=) 12.Nc5 (12.Rc1 b6+=) 12...Bc5 (12...Bc8!?+=) 13.dc5+/– Nbc6? (better is 13...0-0+/–) 14.Ne4!+– de4 (14...de4 15.Qd8 Double attack (15.Bh8 Discovered attack); 14...fe4 15.Bh8 Discovered attack) 15.Qd8 Rd8 16.Bh8 Bb3 17.Bb2 Nd5 18.Be2 (18.Rc1 a6+–) 18...a6 (18...f4 19.b5 Nce7 20.ef4 Nf4 21.Bf1+–) 19.h4 Ba4 (19...Ke7 20.h5 g5 21.h6+–) 20.g4 (20.h5 g5+–) 20...Kf7 (20...f4 21.Rh3+–) 21.gf5 gf5 22.Rg1 Rg8 (22...Rd7 23.Rg7 Ke6 24.Rd7 Kd7 25.Kd2+–) 23.Rg8 Kg8 24.Kd2 h5 (24...Kf8 25.Rg1+–) 25.Rg1 Kf8 26.Bh5 a5 (26...Bb3 27.Rg7 Nde7 28.Be2+–) 27.Rg5 Nde7 28.Bg7 Kg8 29.Bh6 Kh7 (29...Kh8 30.Bf8 Bb3 31.b5+–) 30.Bf8 Nd5 (30...Bb3 31.b5 Kh8 32.bc6 Nc6 33.Bg7 Kh7+–) 31.Bf7 ab4 (31...Bd1 32.Rg6 ab4 33.Rh6) 32.Rh5 1–0. Janek – Drlmar, internet, 2017.

    6.c4 Be6 7.cd5 Bd5 8.Nc3 Nd7 9.Nd5 cd5 10.Bb5 Ne7 11.0-0 Nc6 12.d3 0-0 13.Qb3 a6? (better is 13...Ne7+=) 14.Qd5+– Kh8 15.Bc6 Nb6 16.Qe4 (16.Qa5 bc6 17.Rfc1 Qc7+–) 16...bc6 (16...f5!? 17.Qh4 Qh4 18.Nh4 bc6+–) 17.Qc6+– Rc8 18.Qe4 Qe7 19.Rac1 Na4 20.Ba1 Qd7 21.d4 ed4 22.Bd4 Rfe8 23.Qb1 a5 24.Rc8 Rc8 25.b5 (better is 25.ba5 Nc3 26.Bc3 Rc3 27.Rc1 Ra3 28.Qb6+–) 25...Ba3?? (better is 25...Rb8+–) 26.Qb3 Nc5 (26...Bb4 27.Qa4 Rb8 28.Rc1+–) 27.Qa3 Qb5 (27...Nb7 28.Rc1 Kg8 29.Rc8 Qc8 30.Qb3 Kh8+–) 28.Rc1 h6 29.Bc5 Rc5 (29...a4 30.Nd4 Qe8 31.Nf5+–) 30.Qc5 (30.Qc5 Qc5 31.Rc5+–) 1–0. Fournier,Frederic (1635) – leodoc, Active, 2008.

    6.d4 e4 7.Nfd2 f5 8.c4 Nf6 9.Nc3 a6 10.Qb3 Be6 11.cd5 cd5 12.Na4 b6 13.b5 a5 14.Rc1 0-0 15.g3 g5 16.h4 h6 (16...g4 17.Be2=) 17.hg5+= hg5 18.Be2 Ra7 19.Qc2 Rg7 20.Qb3 f4 (20...Ra7 21.Nc3+=) 21.gf4+= gf4 22.Nf1 (better 22.f3!?+=) 22...f3-/+ 23.Bd1 Ng4 24.Nc3 Nf2 25.Kf2 Rg2?? (better 25...Qg5 26.Ne4 Qg2 27.Ke1 Qh1-+) 26.Ke1= Be7?? (better 26...Bg3 27.Ng3 f2 28.Kf1 Rg3-+) 27.Bc2+- f2 (27...Qd6 28.Qa2+-) 28.Kd1 Rg1 (28...Qd6 29.Ne2+-) 29.Be4! Bg4? (29...de4 30.Qe6 Double attack (30.Qe6 Pinning; 30.Qe6 Deflection; 30.Qe6 Decoy)) 30.Kc2 (30.Kd2!? Rh1 31.Qd5 Qd5 32.Bd5 Kg7 33.Bh1 Nd7+-) 30...Bf5 31.Bf5 Rf5 32.Ng3 (better 32.e4 Bg5 33.Rd1+-) 32...Rg3+= 33.Ne2 (33.e4 Rf4 34.Qa2 Kg7 35.Nd5 Re4 36.Ne7 Qe7=+) 33...Rg2 (better 33...Rgf3 34.Rcf1 Qc7 35.Kb1 Qc4 36.Qc4 dc4=) 34.e4?? (better 34.Rcf1 Qc8 35.Kd2+=) 34...f1Q-+ 35.Rcf1 Rf1 36.Rf1 Re2 37.Kb1 Re4 (better 37...Rg2!?=) 38.Qg3+/- Bg5? (better 38...Kh8 39.Rf7 Qg8 40.Qh3 Rh4+-) 39.Bc1+- Re7?? (39...Re6 40.Rf5 Rg6 41.Rg5 Rg5 42.Bg5 Qe8 43.Bh6 Kf7 44.Qg7 Ke6 45.Qe5 Kd7 46.Qd5 Kc8 47.Qf5 Qd7 48.Qc2 Kb7 49.Qe4 Ka7+-) 40.Bg5 (40.Qg5 Rg7 41.Qd8 Kh7 42.Rh1 Kg6 43.Qe8 Kf5 44.Qe5 Kg4 45.Qf4) 40...Rg7+- 41.Bd8 (better 41.Qe5 Qd7 42.Rf6+-) 41...Rg3 42.Rg1?? (better 42.Bc7 Ra3 43.Bd6 Rb3 44.Ka2 Rb5 45.Rf8 Kg7 46.Rb8+-) 42...Nd7 (better 42...Rg1 43.Kc2 Rg2 44.Kc3 Rg3 45.Kc2 Ra3-+) 43.Rg3+- Kf7 44.Bc7 Ke8 45.Bd6 (better 45.Re3!? Kf7+-) 45...Nf6 46.Rf3 Ne4 47.Rf8 (47.Bf4 Ke7+-) 47...Kd7 48.Rf6 (better 48.Be5 Nd2 49.Ka2+-) 48…Nc3 (48...Nc3 49.Kb2 Ne4+-). TwelveTeen (2600) - opperwezen (2815), Time forfeit, lichess.org, 2016. (=1.a3 e5 2.b4 d5 3.Bb2 Bd6 4.e3 c6 5.Nf3 f6)

    6.d4 Ne7 7.de5+= fe5 8.Be5 Be5 9.Ne5 a5 10.Nd2 Qd6 11.Nd3 Bf5 12.ba5 Ra5 13.a4 0-0 14.Be2 Nd7 15.0-0 Nf6 (15...Nb6 16.c3+=) 16.c4 Rfa8 The isolani on a4 becomes a target 17.cd5 Qd5 (17...Rd5!? 18.Qb3 Kf8+=) 18.Nf4+– Qd6? (18...Qd8 19.Nc4 Qd1 20.Rfd1+–) 19.Nc4 (better 19.Qb3 Ned5 20.Nc4+–) 19...Qd1+– 20.Rad1 Ra4 21.Nd6?? (better 21.Nb6!?+–) 21...Bc8 (21...b5 22.Nf5 Nf5 23.Bf3=+) 22.Nc8 (22.Bc4 Kf8=) 22...Rc8 23.Ne6 (23.Ra1 b5=) 23...b6 (23...b5 24.Bd3=+) 24.Rb1 b5 (24...Nfd5 25.Rfc1=) 25.Rfc1 (25.Bd1 Ra3=) 25...Raa8 (25...Kf7 26.Nd4=) 26.Nd4 Nfd5 (26...Ra6!?=) 27.Bf3+– b4? (better 27...Kf8!?+–) 28.Nc6!+– Nc3?? (28...Nc6 Deflection from d5 29.Bd5 Theme: Double Attack) 29.Ne7 Kf7 (29...Kf8 30.Nc8 Rc8 31.Kf1+–) 30.Nc8 Rc8 31.Kf1 b3 (31...Nb1 32.Rc8 Nd2 33.Ke2 Nf3 34.Kf3 b3+–) 32.Rb3 Kf6 33.Rcc3 Rd8 34.Ke2 (better 34.Rc6 Ke7 35.Rc7 Rd7 36.Rd7 Kd7 37.Rb7 Ke6 38.Rg7+–) 34...Rd2 35.Kd2 g5 (35...Ke7 36.Rb7 Kf6 37.Rc6 Kg5 38.Rb5 Kh4 39.Rc4) 36.Rc5 (36.Rc6 Ke7 37.Rb7 Kd8 38.Ra6 g4 39.Ra8) 36...g4 (36...Ke7 37.Rb7 Kd8 38.Rg5 Ke8 39.Rg8) 37.Rb6 (37.Rc6 Ke7 38.Rb7 Kd8 39.Bg4 Ke8 40.Rc8) 37...Kg7 (37...Ke7 38.Rb7 Kf6 39.Rc6 Kg5 40.Rb5 Kh4 41.Rh6) 38.Rc7 Kh8 (38...Kf8 39.Rb8) 39.Rb8 1–0. BeepBeepImAJeep (2585) – Clovis99 (2420), lichess.org, 2017.

    6.Be2 A) 6...a5 7.b5 e4 8.Ng1 Ne7 9.d3 0-0 10.de4=; B) 6...Qc7 7.c4 (7.Nc3 Ne7 8.e4 d4 9.Na4 b5 10.c4+=; 7.d3 a5 8.b5 Ne7 9.c4 0-0 10.Nc3=) 7...dc4 8.Bc4 b5 9.Bg8 Rg8 10.Nc3=; C) 6...Ne7 7.Nc3 0-0 8.0-0 Qc7 9.Kh1 Bf5 10.Re1+=.

    6.Nc3 Ne7

    7.Be2 0-0 8.0-0 Qc7 9.d3 b5 10.e4 d4.

    7.Be2 0-0 8.0-0 Qc7 9.h3 Be6 10.Re1 +=.

    7.Be2 a5 8.b5 e4 9.Ng1 0-0 10.d3 f5.

    7.Be2 e4 8.Nd4 a5 9.ba5 Qa5 10.d3 f5.

    7.Be2 Be6 8.0-0 0-0 9.e4 d4 10.Nb1 a5.

    7.Be2 Bf5 8.0-0 0-0 9.d3 a5 10.b5 Be6.

    7.e4 d4 (7...a5 8.b5 d4 9.Na4 Bd7 10.c4 c5; 7...0-0 8.d4 Be6 9.de5 fe5 10.Ng5 Bf7; 7...Be6 8.d4 0-0 9.de5 Be5 10.Bd3 Bg4) 8.Ne2 Be6 9.c3 dc3 10.Bc3 Nd7.

    6.c4 dc4

    7.Bc4 a5 8.b5 cb5 9.Bb5 Bd7 10.Nc3 Ne7.

    7.Bc4 b5 8.Bg8 Rg8 9.d4 e4 10.Nfd2 Qe7.

    7.Bc4 Nd7 8.Nc3+/–.

    7.Bc4 Qe7 8.Nc3 (8.d4 Nd7 9.Nc3 Nb6+/–) 8...Be6+/– 9.Qb3 Bc4 10.Qc4 Qf7 11.Ne4 (11.Nb5 Qe7 (11...Qc4 12.Nd6 Kd7 13.Nc4+–) 12.Nd6 Qd6+–) 11...Bc7 (11...Qc4?? 12.Nd6 Kd7 13.Nc4+–) 12.Qc2 Ne7 13.d4 Nd7 14.de5 fe5 15.0-0 (better is 15.Neg5 Qg8 16.0-0+/–) 15...0-0? (better is 15...Qg6!?+=) 16.Rad1 (16.Neg5 Qg6 17.Qb3 Nd5+–) 16...Ng6 (16...Qf5 17.Qb3 Nd5 18.Ng3+–) 17.Neg5 Qe7 18.Qc4 Kh8 19.Qe6 (19.Qe6 Nb6 20.Qe7 Ne7 21.Ne6+–) 1–0. Seifert,Henryk (2250) – Kaminski,Ludwik (1850), 3rd MITSz Pszczyna Poland, 2007.

    7.Bc4 Ne7 8.Nc3 (8.d4 Nd7+= (8...e4 9.Nfd2 b5 10.Ba2 f5) 9.Nbd2 ed4 10.Bd4 Nf5) 8...Ng6 (8...b5!? 9.Ba2 a5+= (9...Bg4 10.d4 Nd7) 10.d4 ed4) 9.Ne4 (9.d4 ed4 10.Qd4 Qe7) 9...f5 (better is 9...Bf5!? 10.Nd6 Qd6+=) 10.Nd6+– Qd6 11.Ng5 Ke7? (better is 11...Rf8 12.Nh7 Rh8+–) 12.Nf7 Qd7 (12...Qf6 13.Nh8 Nh8 14.f4+–) 13.Nh8 Nh8 14.f4 (14.Be5 Kf8+–) 14...ef4 (14...Nf7 15.fe5 Qd8 16.Qh5+–) 15.Qh5 Qe8 (15...Ng6 16.Qh7 fe3+–) 16.Qg5 Kd7 (16...Kd6 17.Qf4 Kd7 18.Qd4 Kc7 19.Qg7 Nd7 20.Qh8 Qh8 21.Bh8+–) 17.Qg7 Kd6 18.Qd4 Ke7 19.Qf6 Kd7 20.Qf5 Kd8 (20...Kd6 21.Qf4 Kd7 22.Qf5 Kd6 23.Qd3 Kc7 24.Qh7 Nd7 25.Bh8 a5+–) 21.Bf6 Kc7 22.Qf4 Kd7 23.Qd4 Kc7 24.Be5 Qe5 25.Qe5 Kd8 26.Qh8 1–0. mtr – AYδRδ?AYδRδ?, internet, 2009.

    7.Bc4 Bg4 8.Qb3 Nh6 9.e4= b5 10.Bb5 cb5.

    7.Bc4 Nh6 8.d4 e4 9.Nfd2 Bf5 10.Qc2 b5.

    6.c4 Ne7

    7.Nc3 0-0 8.cd5 cd5 9.Nb5 Be6 10.Be2 Nbc6 11.Nd6 Qd6 12.0-0 a6 13.b5 (13.d4!?=) 13...ab5=+ 14.Bb5 e4 15.Nd4 Nd4 16.Bd4 f5 (better 16...Ra3!? 17.Ra3 Qa3-/+) 17.Qb3= Rf7 18.Rfc1 f4 19.Qb2 Ng6 20.Bc5 Qd8 21.Bf1 f3 22.g3 Qc7 23.Bd4 Qd6 24.Qb6 (24.d3!?=) 24...Qb6=+ 25.Bb6 Ne5 26.Bd4 Nc4 27.Bc4 (27.d3!? Nd2 28.Rc3=+) 27...dc4-/+ 28.Rcb1 Bd5 29.h4 Rd7 30.Kf1 Bc6 31.Ke1 b5 32.Kd1 Ra4 (32...Kf8 33.g4-/+) 33.Kc2 (33.Rb4 Ra5-/+) 33...Rd8 34.Kc3 Rda8 35.Bc5 h5 36.Kb2 g6 37.Kc1 Kf7 38.Bb4 Ke6 39.Kb2 Kf5 40.Rc1 Bd5 41.Rh1 Be6 42.Rag1 Rd8 43.g4 (43.Kc2 Kg4-+) 43...hg4-+ 44.h5 gh5 45.Rh5 Kf6 (45...Kg6 46.Rb5 Rb4 47.Rb4 Rd2 48.Kc3 Rf2 49.Rb6=+) 46.Rb5 (46.Bc3 Kg6 47.Rgh1=+) 46...Ra7 (better 46...Rb4!? 47.ab4 Rd2 48.Kc3 Rf2-/+) 47.Bc3 Ke7 (47...Kf7 48.Re5=) 48.Rh1 Rad7 49.Rh7 Kd6? (49...Ke8 50.Rh6 Rd6 51.Bb4 c3 52.Bc3+/-) 50.Bb4?? (better 50.Rh6 g3 51.fg3+-) 50...Kc6= 51.Rc5 Kb6 52.Rd7 Rd7 53.Re5 Bd5 54.Bc3?? (54.Rg5 Bc6=) 54...Kc5?? (better 54...g3 55.Bd4 Kb7 56.fg3 Rf7-+) 55.Bd4 (55.Rg5 Rh7=) 55...Kc6=+ 56.Kc3? (56.Rg5 Rb7 57.Kc2 Rb3=+) 56...Rd6?? (better 56...g3 57.fg3 Rf7-+) 57.Rg5 Re6 (57...Be6!?=+) 58.Rg4+= Re7 59.Rg5 Rb7 60.Kc2 Rb3 61.Rg6 Kc7 (61...Kb5 62.Rb6 Ka5 63.Rh6=) 62.Rg7 (62.a4 Ra3 63.a5 Bc6+=) 62...Kc6= 63.Rg6 Kb5 64.Rg5 Kc6 65.Rg6 ½-½. FeegLood (2535) - kingston_1972 (2235), lichess.org, 2015.

    7.c5 Bc7 8.Be2= Nd7 9.0-0 0-0 10.Nc3 b6.

    7.d4 e4 8.Nfd2 0-0 9.Qb3 Be6 10.cd5 cd5 (better 10...Bd5!? 11.Bc4 f5=) 11.Ne4!+– Qd7 (11...de4 12.Qe6 Double attack (12.Qe6 Pinning; 12.Qe6 Deflection; 12.Qe6 Decoy)) 12.Nd6 Qd6 13.Nc3 Nbc6 14.Bd3 Nf5 (14...f5 15.Qc2+–) 15.0-0 (15.Bf5 Bf5 16.Qd5 Qd5 17.Nd5 Be4+–) 15...Rfe8 (15...Nh6 16.Rfc1+–) 16.Bf5 Bf5 17.Qd5 (17.Nd5?! Be6 18.e4 Bf7+–) 17...Qd5 18.Nd5 Rac8 (18...Rad8 19.Nc3+–) 19.f3 (19.Nc3 Red8+–) 19...Be6 (19...Rcd8 20.e4+–) 20.Nf4 Bc4 (20...Rcd8 21.Rac1+–) 21.Rfc1 b5 (21...Nd8 22.e4+–) 22.d5 Ne5 23.e4 g5 (23...Kf7 24.Bd4+–) 24.Be5 Re5 25.Nd3! Ree8 (25...Bd3 26.Rc8 Pinning (26.Rc8 Deflection; 26.Rc8 Decoy)) 26.Nc5 a5 (26...Kf7 27.a4 a6 28.ab5 Bb5 29.Kf2+–) 27.Nd7 Kf7 (27...Re7 28.Nb6 Rb8 29.ba5+–) 28.Nb6 Rc7 (28...a4 29.Nc8 Rc8 30.Kf2+–) 29.a4 Rb8 30.ba5 (30.Nc4?! bc4 31.b5 c3+–) 30...Rbb7 (30...Ra7 31.ab5 Bb5 32.Kf2+–) 31.Kf2 (31.d6 Rc6 32.ab5 Bb5 33.Rc6 Bc6+–) 31...f5 (31...Ra7 32.d6 Rcb7 33.Rcb1+–) 32.d6 Rd7 (32...Rc6 33.ab5 Bb5 34.Rc6 Bc6 35.Rc1+–) 33.Nd7 Rd7 34.ab5 (34.a6 fe4 35.ab5 Bb5+–) 34...Bb5 35.a6 Ra7 (35...Ba6 36.Ra6 Ke6+–) 36.Rc7 Rc7 37.dc7 Bd7 38.a7 fe4 39.a8Q ef3 40.Qf3 Kg6 (40...Kg7 41.c8Q! Bc8 42.Ra7 Bd7 43.Rd7 Kh6 44.g4 Kg6 45.Qc6) 41.Ra6 Kg7 42.Qf6 Kg8 43.Ra8 Bc8 44.Rc8 1–0. Kamilsson – Pointer, internet, 2020.

    7.d4 Bf5 8.de5+– fe5 9.Nc3 Nd7 (9...a5!? 10.b5 Nd7 11.cd5 cd5 12.Nd5 Rc8+–) 10.cd5+– cd5 11.Nd5 Nd5? (better 11...0-0 12.Nc3 Qb6+–) 12.Qd5 Nb6 13.Bb5 Kf8 14.Qb7 Rb8 15.Qa6 (15.Qa7?! Ra8 16.Qb7 Rb8=) 15...Qe7 16.0-0 Kf7 (16...Bc8 17.Qa5 Bg4 18.Nd2+–) 17.Bc4 Nc4 (17...Kg6 18.Rfd1 Rhf8 19.Rd6 Qd6 20.Be5+–) 18.Qc4 Be6 19.Qe4 Rhf8 (19...Rhe8 20.Be5 Kg8 21.Bd6 Qd6 22.Ng5+–) 20.Be5 Kg8 (20...Rb5 21.Qf4 Ke8 22.Bd6 Rf4 23.Be7 (23.Bf4?! g5 24.Bg3 Qf6+–) 23...Rf3 24.gf3 Ke7 25.Rfc1+–) 21.Bd6 Qd6 22.Ng5 Bf5 (22...Rfe8 23.Rfd1 Qe7 24.Qh7 Kf8 25.Ne6 Qe6 26.Rd4+–) 23.Qc4 Kh8 24.Nf7 Rf7 25.Qf7 Rf8 (25...Qg6 26.Qa7 Re8 27.f3+–) 26.Qa7 Qg6 (26...Kg8 27.Rfd1 Qg6 28.f3+–) 27.f3 Bh3 (27...h5 28.e4 Bh3 29.Ra2+–) 28.Ra2 Be6 (28...h6 29.e4+–) 29.Rd2 Qf5 (29...Rc8 30.b5 Qg5 31.a4+–) 30.Rc1 Qg5 (30...h5 31.a4+–) 31.Qc5 Qf6 32.b5 h6 (32...Bg8 33.b6 Rb8 34.Rb1+–) 33.b6 Rc8 (33...Kh7 34.b7 Rb8+–) 34.Qc8 Bc8 (34...Kh7 35.b7 Bc8 36.Rc8 Qh4 37.Re2 Qe7 38.b8Q Kg6 39.Rc6 Kf7 40.Qb3 Kf8 41.Rc8 Qe8 42.Qb4 Kf7 43.Qf4 Kg6 44.Re8 h5 45.Rd2 Kh7 46.Rd6 g5 47.Qf7) 35.Rc8 Kh7 36.b7 Qh4 37.Re2 (37.Re2 Qe7 38.b8Q Kg6 39.Rc6 Kf7 40.Qb3 Kf8 41.Rc8 Qe8 42.Qb4 Kg8 43.Re8 Kf7 44.Re7 Kf8 45.Rc2 Kg8 46.Qd4 Kf8 47.Qg7) 1–0. Pierre – Mascarone, internet, 2020.

    7.Be2 0-0 8.d3 Be6 9.c5 Bc7 10.0-0 Nd7 11.Nbd2 Qe8 12.Qc2 Qg6 13.Nh4 Qh6 14.Nhf3 g5 15.e4 (15.h3!?=) 15...g4-/+ 16.Ne1 d4 (16...f5!?-/+) 17.g3 Qg5 18.Ng2 h5 (18...f5!?=) 19.f4+= Qh6 (19...gf3 20.Bf3 a5 21.Nc4+=) 20.f5 Bf7 21.Nc4 b6 22.Nd6 bc5 (22...Qh7 23.Nf7 Qf7 24.cb6 ab6 25.Nh4+/-) 23.Nf7+/- Kf7 (23...Rf7 24.Bc1 Qg7 25.Bd2+/-) 24.Qc4 Kg7?? (better 24...Ke8 25.Bc1 Qg7+/-) 25.Bc1+- cb4 (25...Qh8 26.Qe6 Rf7 27.Qd7 Qc8+-) 26.Bh6 Kh6 27.Qe6 (27.Qe6 Nc5 28.Qe7+-) 1-0. ADLAI – Anejdaj, internet, 2021.

    7.Be2 dc4 8.Bc4 b5 9.Ba2 a5 10.Qb3 Rf8 11.Nc3 ab4 12.ab4 Bg4 13.0-0 Na6 Attacking the isolated pawn on b4 14.Bb1 Bf3 15.gf3 f5 (15...Nb4? 16.Ra8 Qa8 17.Ne4+– (17.Bh7?! f5+=)) 16.Kh1 Nb4 17.Ra8 Qa8 18.Ba3 c5 19.e4 Qa5 20.Bb4 (better is 20.ef5!? c4 21.Qb2-/+) 20...cb4–+ 21.Nd5 Qa3 22.Qe3 Nd5 23.ed5 g6 24.Bd3 Kf7 25.Rb1 Rc8 26.Kg2 Qa2 27.h4 (27.Qh6 Qd5 28.Qh7 Kf6 29.Qh4 Ke6 30.Bf1 Qd2 31.Bb5–+) 27...Qd5 28.Be2 Kg7 29.Bd1 Qc4 30.h5 f4 (30...gh5?! 31.Qg5 Kf7 32.Qh5 Ke7 33.Bb3=) 31.Qb6 (31.Qe4 Qe4 32.fe4 gh5–+) 31...Qd3 32.Ra1 Qd4 33.Ra6 Qb6 34.Rb6 Rc1 35.Be2 Bc5 36.Rb7 Kf6 37.hg6 hg6 38.Rb5 Rc2 39.Bf1? (39.Kf1 g5–+) 39...g5 (39...Ke6 40.Kh3–+) 40.Kg1 (40.Kh3 Bd6–+) 40...Ke6 41.Bh3 Kd5 (41...Kd5 42.d3 Kc6–+) 0–1. Bury born and bred – Klaus Behrmann, ChessWorld.net, 2004.

    6.c4 Bg4

    7.Nc3 e4 8.h3 Bh5 9.g4 Bf7 10.Nd4 dc4 (10...Be5 11.c5=) 11.Ne4+= Bc7 (11...Bd5 12.Qc2 b5 13.Nd6 Qd6 14.e4+/-) 12.Nf5 (12.Nc5 Qc8+/-) 12...Kf8 (better 12...g6!? 13.Nfg3 a5=) 13.Qc2+/- b5 14.g5 (14.d3!? cd3 15.Bd3+/-) 14...Qd5+= 15.Ng7 (15.Nfg3 Bg6 16.f4 fg5+=) 15...Kg7 (15...Be5 16.d3 cd3 17.Bd3 Bb2 18.Qb2 Qd3 19.Nf6 Qg6+= (19...Kg7? 20.Nd7 Nf6 21.Qf6 Kg8 22.Qf7 Kf7 23.Ne5 Ke7 24.Nd3+-)) 16.Nf6= Nf6 (16...Qh1? 17.Ne8 Kf8 18.Nc7+-) 17.Bf6 Kg8 18.Rg1 Nd7 (18...Be5 19.d3 cd3 20.Bd3 Bf6 21.gf6 Kf8 22.Rd1=) 19.Bh8 Kh8 20.Bg2 (20.d3 Ne5 21.Qc3=+) 20...Qe5?? (20...Qg5 21.0-0-0 Qf6 22.Qc3-+) 21.Rc1?? (21.Qc3 Bd5+/-) 21...Bd5 (better 21...Qg5 22.h4 Qg7-+) 22.f4+= Qe6 23.Bd5 cd5 24.Qc3 (24.f5 Qe7=) 24...Kg8=+ 25.h4 (25.Kd1 Qh3 26.Qd4 Qf3 27.Kc2 a5=+) 25...Bf4 26.Qd4? (26.g6 h6 27.Kd1-+) 26...Be5-+ 27.Qg4 Qg4 28.Rg4 Nf8?? (better 28...Bb2!? 29.Rb1 Ne5 (29...Ba3?! 30.Rd4 Nb6 31.Rf4-+) 30.Rb2 Ng4-+) 29.d3 (29.e4 Ng6-/+) 29...Re8 (29...Bb2!? 30.Rb1 Ba3 31.Rd4-+) 30.dc4 bc4 31.Rd1 Rd8 (31...Bc3 32.Kf1 Re5-/+ (32...Re3?! 33.Rd5 Bg7 34.Rc4=)) 32.Rc4+= Ne6 (32...Bg3 33.Ke2 dc4 34.Rd8 Bh4 35.Rc8+/-) 33.Rc6 Kf7 34.Ke2 Bg3 (34...Rd7 35.b5+=) 35.Rf1+/- Ke7 36.Rf6 Rd6 37.Rd6 Kd6? (better 37...Bd6 38.Kd3 Bg3+-) 38.Rh6+- Ke5 39.Rh7 d4 40.ed4 Nd4 41.Kd3 Nf5 (41...Ne6 42.Ra7 Nf4 43.Ke3 Bh4 44.Ra5 Nd5 45.Rd5 Kd5 46.Kf4+-) 42.Ra7 (better 42.h5 Kf4 43.g6 Kg4+-) 42...Kf4 (42...Bh4 43.b5 Bg5+-) 43.g6 Bh4 44.g7 Ng7 45.Rg7 Bf6 (45...Kf5 46.Rh7 Bg3 47.a4+-) 46.Rd7 (better 46.Rf7 Ke5 47.Rf6 Kf6+-) 46...Ke5 47.Kc4 Ke6 48.Rd5 Be7 49.a4 Bb4 50.a5 Ba5 51.Ra5 Kd6 52.Rd5 Kc6 (52...Ke6 53.Kc5 Kf6 54.Kd6 Kf7 55.Rf5 Kg7 56.Ke7 Kg6 57.Ke6 Kg7 58.Rg5 Kh6 59.Kf6 Kh7 60.Rh5 Kg8 61.Rh4 Kf8 62.Rh8) 53.Kd4 (53.Rd4 Kb6 54.Rd6 Kb7 55.Kb5 Kc7 56.Kc5 Kb7 57.Rd7 Kc8 58.Kc6 Kb8 59.Rd8 Ka7 60.Re8 Ka6 61.Ra8) 53...Kc7 (53...Kb6 54.Ke5 Kc7 55.Rc5 Kd7 56.Rc2 Ke7 57.Rc7 Kd8 58.Kd6 Ke8 59.Rb7 Kf8 60.Ke6 Kg8 61.Kf6 Kh8 62.Kg6 Kg8 63.Rb8) 54.Rc5 (54.Kc5 Kb7 55.Rd7 Kc8 56.Kc6 Kb8 57.Rd8 Ka7 58.Re8 Ka6 59.Ra8) 54...Kb6 (54...Kd6+-) 55.Kd5 (55.Kc4 Kb7 56.Kb5 Ka7 57.Kc6 Ka6 58.Kc7 Ka7 59.Ra5) 55...Kb7 56.Rc6 Ka8 (56...Ka7 57.Kc5 Kb7 58.Kd6 Kb8 59.Rb6 Ka8 60.Kd7 Ka7 61.Kc7 Ka8 62.Ra6) 57.Kd6 (57.Rb6 Ka7 58.Kc6 Ka8 59.Ra6 Kb8 60.Ra5 Kc8 61.Ra8) 57...Ka7 (57...Kb7 58.Kc5 Ka7 59.Rc7 Ka8 60.Kc6 Kb8 61.Kb6 Ka8 62.Rc8) 58.Kd7 (58.Kc7 Ka8 59.Ra6) 58...Ka8 (58...Kb7 59.Re6 Kb8 60.Kc6 Ka7 61.Kc7 Ka8 62.Ra6) 59.Kc8 Ka7 60.Kc7 Ka8 61.Ra6 1-0. black_bishop_88 (2520) - Pedrosky007 (2420), lichess.org, 2020. (=1.a3 c6 2.b4 d5 3.Bb2 e5 4.Nf3 f6 5.e3 Bd6)

    7.d3 Nh6 (7...Ne7 8.c5 Bc7 9.h3 Be6 10.Be2 Nd7; 7...a5 8.c5 Be7 9.h3 Be6 10.d4 ab4) 8.Be2 a5 9.c5 Be7 10.0-0 b6.

    7.cd5 cd5 (7...e4 8.dc6 Nc6 9.h3 Bh5 10.g4 Bf7) 8.Nc3 Ne7 9.Rc1 a5 10.Bb5 Nd7.

    7.h3 Bh5 (7...Be6 8.c5 Bc7 9.d4 Nd7 10.Be2 e4; 7...Bf5 8.cd5 cd5 9.d4 e4 10.Nfd2 Ne7) 8.cd5 cd5 9.Nc3 Ne7 10.Qb3 Bf7.

    5.Nf3 e4

    6.Nd4 Bd6 7.c4 Ne7 8.cd5 cd5 9.Nc3 0-0 (9...Be5 10.d3 f5 11.de4 de4 12.Qh5 g6 13.Qh4+=) 10.Qb3 Bc7 (10...Kh8 11.Nd5 a5 12.ba5+/-) 11.Ne4 Kh8 (11...Nbc6 12.Nc6 Nc6 13.Rc1+/-) 12.Nc5+- b6? (better 12...Rf7+-) 13.Nce6 Be6 14.Ne6 Qc8 15.Nf8 Qf8 16.Rc1 Bd6 17.Bd3 Nd7 18.Bb1 Ne5 19.Qc2 (19.f4 Nc4+-) 19...g6 20.d4 (20.0-0 a5+-) 20...Nc4 21.0-0 (21.h4 h5+-) 21...b5 22.Qe2 Nf5 (22...a5 23.ba5 Ra5 24.Rc3+-) 23.Bd3 (23.Bf5 gf5 24.Rc2 a5+-) 23...Re8 (23...a5 24.Bf5 gf5 25.ba5 Ra5 26.Rb1+-) 24.Qf3 (24.Rc2 Qh6 25.g3 Qg5+-) 24...Qe7? (better 24...Nb2 25.Bb5 Rb8 26.Qd5 Qd8+-) 25.Bf5 (25.Bc4 dc4 26.Qc6 Qe4+-) 25...gf5 26.Qd5 Rg8? (26...Qd7 27.Kh1 Nb2+-) 27.Rc4 bc4 28.Qc4 Bb8 (28...f4 29.ef4 Qg7+-) 29.f3 (29.Qc6 Bd6+-) 29...Qc7?? (29...Qe3 30.Kh1 Qd2-+) 30.Qc7+- Bc7 31.d5 f4 (31...Kg7 32.Bd4 Rd8+-) 32.Bf6 Rg7 33.Bg7 (better 33.Rc1 Kg8 34.Bg7 Bb6+-) 33...Kg7 34.e4 Bb6 35.Kh1 Be3 (35...Bc7+-) 36.Rc1! Bd4?? (36...Bc1 37.a4 Combination) 37.Rc4 Be5 38.a4 (38.Rc6 Bd4+-) 38...Kg6 39.b5 Bd6 (39...Kf7 40.a5 Ke7 41.a6+-) 40.a5 (better 40.Rc6 Kf7 41.Rd6+-) 40...Bc5 (40...Kg5 41.a6 Bb8+-) 41.b6 (41.Rc5 Kf6 42.b6 h6 43.b7 Kf7 44.b8Q a6 45.Rc6 Ke7 46.Qb7 Kd8 47.Rc8) 41...Bb6 42.ab6 ab6 43.Rc6 Kg5 44.Rb6 (44.h4 Kh5 45.d6 Kg6 46.d7 Kh5 47.d8Q h6 48.Qf6 b5 49.Qh6) 44...h5 (44...Kh5 45.d6 Kg6 46.d7 Kg5 47.d8Q Kh5 48.Qd5 Kh4 49.Rh6) 45.Re6 h4 46.d6 h3 47.d7 hg2 48.Kg2 Kh4 (48...Kh5 49.d8R Kg5 50.Rd5 Kh4 51.Rh6) 49.Rg6 (49.d8Q Kh5 50.Qd5 Kh4 51.Rh6) 49...Kh5 50.Rg4 Kh6 51.d8Q Kh7 (51...Kh5 52.Qg5) 52.Qh4 1-0. TwelveTeen (2520) - nimesechecs (2335), lichess.org, 2018.

    6.Nd4 Bd6 7.d3 f5 (better is 7...Ne7!?+/–) 8.Nf5!+– Bf5 9.Bg7 Nf6 10.Bh8 Be5 (10...Kd7 11.Bf6 Qf6+–) 11.d4 Bd6 (11...Bc7 12.c4 Nbd7 13.Nc3+–) 12.c4 Kf7 (12...Nbd7 13.Nc3 a5 14.c5+–) 13.Bf6 Qf6 (13...Kf6 14.Nc3+–) 14.cd5 cd5 15.Nc3 Be6 (15...Kg7 16.Nd5 Qe6 17.Nf4 Bf4 18.ef4+–) 16.Nb5 Bf5 (16...Qe7+–) 17.Qh5 Ke6 (17...Ke7 18.g4 Be6 19.Qh7 Qf7 20.Qh4 Kd7+–) 18.Qe8 Qe7 19.Qg8 Qf7 (19...Kf6 20.g4 Bg6 21.g5 Kg5 22.Nd6+–) 20.Qf7 Kf7 21.Nd6 Ke6 (21...Kg6 22.Nb7 Nd7 23.Rc1+–) 22.Nb7 Nd7 (22...Nc6 23.Rc1 Ne7 24.Rc7+–) 23.Rc1 Nb6 (23...Kf6 24.Rc7+–) 24.Rc6 Kd7 (24...Ke7 25.Rc7 Kf6 26.Be2+–) 25.Bb5 Ke7 26.Rc7 Kf6 27.0-0 Rb8 28.Rfc1 a6 29.R1c6 Kg5 30.Be2 Nc8 31.g3 Bh3 (31...Nd6 32.Rd6 Be6 33.Re6 Kf5 34.Rcc6 Re8 35.Re8 a5 36.Re5) 32.Rg7 Kf5 33.g4 1–0. Janek – Vigilante, internet, 2017.

    6.Nd4 Bd7 7.c4 b5? (better is 7...a5!?+=) 8.cb5 cb5? (better is 8...Ne7+/–) 9.Qh5+– (9.Nb5?! Bc6+–; 9.Bb5?! Bb5 10.Nb5 Nc6+–) 9...g6 10.Qd5 Nc6 (10...Bc6 11.Qd8 Kd8+–) 11.Nc6 Ne7 12.Ne7 Be7 13.Bb5 Bb5 14.Qb5 Kf8 15.0-0 f5 (15...a5+–) 16.Bh8 Rb8 17.Qe5 Ke8 (17...Kf7 18.Bg7+–) 18.Bf6 Kd7 (18...Qd6 19.f3 ef3 20.Qd6 Bd6 21.Rf3+–) 19.Be7 Qe7 20.Qb8 Ke6 21.Nc3 (better is 21.Rc1 Qd7+–) 21...Kf7 22.Nb5 Kf6 23.Qd6 (23.Rfc1 Kg5 24.Qf4 Kf6 25.Qh4 g5 26.Qh6 Kf7 27.Nd6 Qd6 28.Qd6 Kg8 29.Rc7 h5 30.Qd8) 23...Kf7 24.Qe7 Ke7 25.Na7 (25.Na7 Kd6 26.a4+–) 1–0. Fournier,Frederic – naval3575, Active, 2007.

    6.Nd4 f5 7.c4 Nf6 8.cd5 Nd5 9.Qh5 g6 10.Qd1 Bg7 (10...Nf6 11.d3+=) 11.Be2 (better 11.Nc6!? Qc7 12.Nd4+/-) 11...0-0= 12.0-0 Qe7 (12...a5 13.Bc4=+) 13.Qc2 Nd7 14.Nc3 White prepares the advance b5 14...Nc3 15.Bc3 Ne5 16.a4 Rd8 17.b5 (17.f3!? a5 18.Rab1+=) 17...c5=+ 18.Nb3 b6 (18...Be6 19.f3=+) 19.a5= Bb7 20.a6 (20.Nc1 Bd5=+) 20...Bd5=+ 21.Rac1 Nd3 22.Bg7? (better 22.Bd3!? ed3 23.Qb1=+) 22...Nc1-+ (22...Kg7?! 23.Rcd1=+) 23.Nc1 Kg7 24.Bc4 Bc4 25.Qc4 Qf7 26.Qc2 Rd5 27.Ne2 (27.d3 Qe6-+) 27...Rad8 28.Rd1 Rd3 29.Nf4 Qb3?? (better 29...Rb3-+) 30.Qc1?? (better 30.Qb3 Rb3 31.Ne6 Kf6 32.Nd8 Rb5 33.Nc6+-) 30...R8d6 (better 30...Rd2! 31.Rf1 Kf7-+) 31.Qa1 Kh6 (better 31...Qc3 32.Nd3 Qa1 33.Ra1 Rd3-+ (33...ed3?! 34.Rc1=)) 32.Rb1?? (better 32.Nd3 Rd3 33.Rb1-/+) 32...Rd2-+ 33.Nd3 (33.h3 Rd1 34.Kh2 Qb1 35.Qh8-+) 33...Qd3 34.Rf1 Rd1 35.g3 Qf1 0-1. SportOrScience (2340) - zumpili (2425), Rated Bullet game, lichess.org, 2021.

    5.Nf3 Be6

    6.c4 Bd6 7.Nc3 Nd7 (7...dc4 8.d4 cd3 9.Bd3=+) 8.cd5= cd5 9.Bd3 Ne7 10.0-0 Nb6 11.Rc1 0-0 12.Nb5 Bb8 13.e4 de4 14.Be4 Qd7 15.Qe2 Ng6 16.Bg6 hg6 17.Rfe1 (17.Rfd1 Rd8=) 17...Nd5=+ 18.g3 a6 19.Nbd4 Bf7 20.Nb3 Qg4 21.Nh4 (21.Nc5 Nf4 22.Qe3 Bd5=) 21...Qe2-/+ 22.Re2 Nb4 23.ab4 Bb3 24.Ng6 Rd8 25.Re3 Be6 (25...Bf7 26.Ne7 Kf8 27.Nc8 Rd2 28.Ba3-+) 26.d4 Ba7 27.Rc7 Rd7 (27...Rd7 28.Rd7 Bd7-/+) 0-1. marekt (2115) - bachi_bouzouk (2450), gameknot.com, 2014.

    6.d4 e4 7.Nfd2 Bd6 8.c4 f5 9.Nc3 Nf6 10.Qb3 0-0 11.b5 Qc8 12.Rc1 Nbd7 13.Be2 Qb8 14.g3 Re8 15.h3 (15.0-0 a6 16.c5 Be7=) 15...Bf7 16.Kf1 Bg3 17.fg3 Qg3 18.Nd1? (better 18.Qd1-/+) 18...f4-+ 19.ef4 Qf4 20.Ke1 (20.Kg2 Qd2 21.Qe3-+) 20...e3 21.Nf1 (21.Nf3 Qg3 22.Kf1-+) 21...Qh4 22.Nf2 ef2 23.Kd1 Re2! 24.Ke2 dc4 25.Qg3 Re8 26.Kf2 Ne4 27.Kg2 (27.Ke1 Ng3 28.Ne3 Nh1 29.Kd1 Bh5 30.Kc2 Qe4 31.Kc3 Qd3 32.Kb4 Qb3 33.Ka5 Qb5) 27...Ng3 28.Ng3 (28.Ne3 Re3 29.Rh2 Bd5 30.Kg1 Ne2 31.Re2 Re2 32.bc6 Qf2) 28...Bd5 29.Kh2 (29.Ne4 Be4 30.Kf1 Qf4 31.Kg1 Qg3 32.Kf1 Bd3) 29...Re2! 30.Ne2 (30.Ne2 Qf2 Mate attack) 30…Qf2 0-1. ZibbitVideos (2490) - kingston_1972 (2460), Rated Bullet game, lichess.org, 2015.

    5.Nf3 Bg4

    6.Nc3 e4 7.h3 Bh5 8.g4 Bf7 (8...ef3 9.gh5 a5 10.Na2=) 9.Nd4 Nd7 (9...a5 10.ba5=) 10.d3 Ne5 (10...ed3!? 11.Bd3 Ne5=) 11.de4+= de4 12.Ne4 Be7 13.Nf5 Bf8? (better is 13...Bd5 14.Bg2 g6 15.Ne7 Qe7+/–) 14.Ned6+– Bd6 15.Nd6 Ke7 16.Bd4 (16.Be5!? fe5 17.Nb7 Qc7+–) 16...b6 17.Nf7 Kf7 18.Be5 Qd1 19.Rd1 fe5 20.Rd6 Rc8 (20...Ne7 21.Bc4 Ke8 22.Ke2+–) 21.Bc4 Ke7 22.Re6 Kd7 23.0-0 b5 24.Rd1 Kc7 25.Bb3 Nf6 26.g5 Ne4 27.Re7 (27.Re5?! Rce8 28.Be6 Nd6+–) 27...Kb6 28.Rdd7 (28.Rg7?! Rc7 29.Rc7 Kc7+–; 28.Re5?! Rhe8 29.Re8 Re8+–) 28...Rb8 29.Re5 Rhe8 30.Re8 Re8 31.Rg7 Rf8 (31...Rh8 32.f4 Nd6 33.Rg8 Rg8 34.Bg8+–) 32.f4 (worse is 32.Rh7 Ng5 33.Rh6 Ne4+–) 32...Rd8 33.Rh7 Rd1 (33...a5 34.ba5 Ka5 35.Re7+–) 34.Kg2 Rd2 (34...Re1 35.Kf3 Nd2 36.Kf2+–) 35.Kf3 Nc3 (35...Nd6 36.g6 Ne8 37.g7 Ng7 38.Rg7+–) 36.g6 Rd8 (36...Rd1+–) 37.g7 Nd5 38.Rh8 (38.Rh8 Rh8 39.gh8Q+–) 1–0. pierre – feri, internet, 2008.

    6.Be2 a5 7.b5 Bd6 8.0-0 Ne7 9.Nc3 0-0 10.Rb1=.

    6.Be2 b5 7.Bc3 a5 8.ba5 Bd6 9.0-0 Ne7 10.Bb4=.

    6.Be2 Bd6 7.0-0 Ne7 8.Nc3 0-0 9.h3 Bf5 10.Re1=.

    6.Be2 Bd6 7.0-0 Ne7 8.h3 Bf3 9.Bf3 0-0 10.c4 dc4 (10...e4 11.Be2+=) 11.Qe2+/– b5 (11...Qe8!? 12.Qc4 Qf7+=) 12.a4+– a6 (12...ba4 13.Qc4 Kh8 14.Nc3+/–) 13.ab5 cb5?? (better is 13...Kh8+–) 14.Ba8 Bb4 (14...Nbc6 15.Bc6 (worse is 15.Ra6 Nb4 16.Ra3 f5+–) 15...Nc6 16.d3 cd3 17.Qd3 Nb4 18.Qb3 Kh8 19.Rd1+–) 15.Nc3 Bc3 (15...Qd6 16.Bb7+–) 16.dc3 (worse is 16.Bc3 Qd6+–) 16...Nbc6 (16...Qc7 17.Ba3+–) 17.Ra6 Qc8 (17...Nb8 18.Ra2 Qb6 19.Ba3+–) 18.Rfa1 Qc7 (18...Qe6 19.Qf3 Rc8 20.Bb7+–) 19.Qf3 Rd8 (19...Nd8 20.Ra7 Qc5 21.R1a5+–) 20.Bc6 Nc6 21.Rc6 Qe7 22.Rca6 Qc5 23.Ra8 Ra8 24.Ra8 Kf7 25.Qh5 g6 (25...Ke6 26.Qe8 Kf5 27.Qd7 Kg6 28.Rg8 Qf8 29.Rf8 Kh5 30.Qg7 b4 31.Rf6 bc3 32.Qg4) 26.Qh7 Ke6 27.Ra6 Kf5 (27...Qd6 28.Qg8 Kd7 29.Qf7 Qe7 30.Qd5 Qd6 31.Qd6 Ke8 32.Ra7 b4 33.Qe7) 28.Qh4 g5 (28...Qe3 29.Rf6) 29.Qh7 1–0. Janek – Tkeef, internet, 2018.

    6.Be2 Bd6 7.Nc3 Ne7 8.0-0 0-0 9.e4 d4 10.Nb1 =.

    6.Be2 Bd6 7.h3 Be6 8.d4 e4 9.Nfd2 f5 10.c4=.

    6.Be2 Ne7 7.0-0 Bh5 8.Nc3 Nc8 9.e4 d4 10.Nd4 Be2 (10...ed4 11.Bh5 g6 12.Ne2 gh5 13.Nd4+=) 11.Nde2 (worse is 11.Nce2 ed4 12.Nd4 Nb6+=) 11...Nb6 12.d4 Nc4 13.Bc1 Bd6 14.Qd3 b5 15.de5 (15.d5 a6+–) 15...Be5 16.a4 0-0 17.Rd1 Qb6 (17...Qd6 18.f4 Qb4 19.fe5 fe5 20.Nd5 Qc5 21.Ne3+–) 18.ab5 cb5 (18...Nd6 19.Be3 Qb7 20.bc6 Nc6 21.Qd5 Kh8+–) 19.Qd5 Kh8 20.Qa8 Rd8 (20...a6 21.Nd5 Qe6 22.Ra2+–) 21.Rd8 Qd8 22.Ra7 h6 (22...Nd6 23.Qd5 Qe8 24.Ra8+–) 23.Qb7 f5 24.Bf4 Nd6 25.Qd5 Bc3 26.Nc3 Qb6 27.Ra8 Ne4 28.Ne4 (28.Bb8?? Qf2 29.Kh1 Qf1) 28...fe4 29.Rb8 1–0. Heqexe – Stucer, internet private, 2017.

    6.Be2 Bf3 7.Bf3 Nd7 8.Bh5 g6 9.Be2 Ne7 10.0-0 Bg7 11.c4 h5 12.cd5 Nd5 13.Nc3 White plans b5 13...Nc3 14.Bc3 Qc7 15.b5 0-0-0 16.bc6 Qc6 17.Rc1 Kb8? (17...Nc5 18.Bb4 b6 19.Ba6 Kb8 20.Bc5 bc5 21.Rb1 Kc7+–) 18.Be5! (18.Be5 Ne5 19.Rc6 Nc6 20.d4+–) 1–0. b4_player – story, casual, 2013.

    6.Be2 Bh5 7.c4 (7.0-0 a5 8.b5 cb5 9.Bb5 Nc6=) 7...Bf7 (7...dc4!? 8.Bc4 e4=) 8.cd5+= cd5 9.Nc3 (9.0-0 Bd6+=) 9...Nh6 (9...a5 10.ba5 Ra5 11.0-0+=) 10.e4 (10.d4!? e4 11.Nd2+=) 10...d4= 11.Nd5 (11.Bb5 Nd7 12.Na4 Bd6=) 11...Bd5+= 12.ed5 Qd5 13.Bd3 (13.Qc2 Nc6+=) 13...Nf7 (13...a5 14.Qa4 Nd7 15.0-0+=) 14.Rc1 (14.Qe2 Nd6 15.0-0 Nc6+=) 14...Qd8 (14...Nd6 15.Rc5 Qa2 16.Qc2=) 15.0-0 Nd6 16.Nh4 g6 17.f4 Bg7 18.Qb3 (better is 18.Re1=) 18...Qe7 (better is 18...Nc6=) 19.fe5+– fe5 (19...Qe5?? 20.Nf3 Qe7 21.Rfe1+–) 20.Bg6! hg6? (better is 20...Kd8 21.Nf5 Qd7 22.Nd6 Qd6+–) 21.Ng6 Qd7 22.Nh8 (22.Nh8 Ke7 23.Qg8+–) 1–0. Janek – Djaekiboy, internet, 2017.

    5.Nh3 Bd6

    6.f4 e4 7.c4 Ne7 (7...a5 8.b5 Be6 9.cd5 cd5 10.d3=) 8.Nc3 (8.Qh5 g6 9.Qh4 Ng8+=) 8...0-0 9.cd5 Bh3 10.gh3 cd5 11.Qb3 Bc7 (11...Kh8 12.Nd5 Nd5 13.Qd5+=) 12.Ne4 Kh8 13.Ng3 d4 14.Bd4 Bf4 15.Nh5 (15.Bc5!? Bd6 16.Ne4 Bc5 17.Nc5+/-) 15...Be5= 16.Be5 fe5 17.Rg1 Nf5 18.0-0-0 (18.Qd3 Qh4 19.Ng3 e4=) 18...g6 (18...Nc6 19.b5 Na5 20.Qd3-/+) 19.Ng3= Nh4 20.Qb2 (20.Be2 Nc6+=) 20...Nc6 (20...Nf3 21.Rg2=) 21.b5 Na5 (21...Rc8!? 22.bc6 Rc6 23.Kb1 Rb6-/+) 22.Qe5+/- Qf6 (better 22...Kg8!? 23.Nh5 Rf7+=) 23.Qf6+- Rf6 24.Kb2 a6 25.Bd3 (25.Ne4 Rb6 26.Rg4 Nf3+-) 25...ab5 (25...Nf3 26.Ne4 Rb6 27.Rg3+/-) 26.Bb5 Rb6 27.a4 Nc4 (27...Nf3 28.Rg2 Nc4 29.Kc3+-) 28.Kc3 Ne5 (28...Nd6 29.Kb4 Nb5 30.ab5+-) 29.d4 Rc8 30.Kb4 Nef3 31.Rgf1 Rf6 32.Rf2 Rff8 33.Rdf1 Kg7 34.Ne4 Ng5 (34...b6 35.Nd6 Rb8 36.Rc1+-) 35.Nd6 (better 35.Ng5 Rf2 36.Rf2+-) 35...Rf2 36.Rf2 (36.Nc8?! Rh2 37.Bd7 Nh3+-) 36...Rc1 37.Ne8 (better 37.Rf4!? Nf5 38.Nf5 gf5 39.Rf5 h6+-) 37...Kh6 38.Nf6 (38.Bd7 Re1 39.Nf6 Kg7+-) 38...Rb1 (38...Nh3 39.Rf1 Rf1 40.Bf1+-) 39.Ka5 Rc1 (39...Nh3 40.Rc2 Re1 41.Rc7+-) 40.Kb6 Ne4 (40...Nf5 41.Kb7 Ne3 42.d5+-) 41.Ng4 (better 41.Ne4 Re1 42.Re2+-) 41...Kg5 42.Rf4 (42.Kb7?! Nf2 43.Nf2 Nf5 44.Ne4 Kh4+-) 42...Rc6 (42...Nd6 43.Ne5 Nhf5 44.Nf3 Kh6+-) 43.Bc6 Nf6 (43...Nd6 44.Bd5+-) 44.Re4! Nd5 (44...Ne4 45.Bd5 Double attack (45.Bd5 Decoy)) 45.Bd5 1-0. FeegLood (2775) - gnejs (2750), Time forfeit, lichess.org, 2016.

    6.f4 Be6 7.Bd3 (7.fe5 fe5 8.Be5 Nf6 9.Bd6 Qd6+=) 7...Qd7 (7...e4 8.Be2=+) 8.0-0 (8.fe5!? fe5 9.Qh5 Qf7 10.Qf7 Bf7 11.Ng5=) 8...Bh3 9.fe5 (better 9.Qh5 Kd8 10.gh3 ef4 11.ef4=+) 9...Be5?? (better 9...Bg4 10.Be2 Be2 11.Qe2 fe5 (worse 11...Be5 12.Be5 Qe6 13.Bd4+=) 12.Be5 Nf6 (12...Be5?! 13.Qh5 Kd8 14.Rf8 Ke7 15.Rf7 Kd6 16.Rd7 Nd7 17.d4=+) 13.Bf6 gf6-+) 10.Be5+= fe5? (better 10...Bg4 11.Be2 fe5 12.Bg4 Qe7=) 11.Qh5+- g6 (11...Kd8 12.Rf8 (12.gh3 Qe8 13.Qf7 Ne7=+) 12...Ke7 13.Rf7 Kd6 14.Rd7 (14.gh3?! Qe8 15.Qf3 Nd7=) 14...Bd7 15.Qg5+- (15.Bh7 Nf6 16.Qg5 Rh7=+)) 12.Qe5 Qe7 13.Qh8 Kd7 (13...Be6+-) 14.Qg8 Be6 15.Qh8 b5 (15...Kc7 16.Rf8+-) 16.Nc3 (16.Rf8 Kc7+-) 16...a6 (16...Kc7 17.a4 ba4 18.Rf8+-) 17.Ne2 (better 17.a4!? c5 18.ab5 cb4+-) 17...Kc7 18.Nd4 Kb7 (18...Bd7 19.Qg8 Be8 20.a4 ba4 21.Ra4+-) 19.Qe5 Nd7 20.Qe6 (20.Ne6?! Ne5 21.Nc5 Kb6=) 20...Qd8 (20...Qe6 21.Ne6 Re8+-) 21.Rf7 Rc8 22.Rd7 Qd7 23.Qd7 Rc7 24.Qc7! Kc7 25.Rf1 g5 26.Nb3 Kd6 27.Nc5 h6 28.Rf7 a5 (28...Ke5 29.Bf1 d4 30.ed4 Kd4 31.Rf5 a5 32.c3) 29.Bf5 (29.Bf1 ab4 30.d4 ba3 31.Rd7) 29...ab4 (29...d4 30.ed4 Kd5 31.Rd7 Kc4 32.Be6) 30.d3 (30.Nb7 Ke5 31.d4) 30...Kc5+- 31.ab4 Kb4 32.Rf6 (better 32.e4 de4 33.de4 c5+-) 32...c5 33.Rh6 c4 (33...d4 34.e4 c4 35.e5+-) 34.Rc6 cd3 35.Bd3 Ka5 36.Rg6 (better 36.Rc5+-) 36...b4 37.Rg5 (37.Ra6) 37...b3 38.Rd5 Kb4 39.cb3 Kb3 40.h4 Kc3 41.h5 Kd2 42.h6 Ke3 (42...Kd1 43.h7 Kd2 44.h8Q Kd1 45.Qb2 Ke1 46.Qe2) 43.h7 Kf4 (43...Kd2 44.h8Q Kd1 45.Bf5 Ke2 46.Qe5) 44.h8Q Ke3 (44...Kg4 45.Qd4 Kg3 46.Rg5) 45.Qd4 (45.Qh6) 45...Kd2 46.Bf1 (46.Be4 Ke2 47.Qf2) 46...Kc1 (46...Kc2 47.Qd2 Kb3 48.Rb5 Ka4 49.Qb4) 47.Qa1 (47.Qd2 Kb1 48.Bd3 Ka1 49.Ra5) 47...Kc2 48.Rc5 (48.Qa3 Kb1 49.Bd3) 48...Kb3 49.Qb1 (49.Rc3 Kb4 50.Qa3) 49...Ka4 50.Qb5 (50.Rb5 Ka3 51.Qb3) 50...Ka3 51.Rc3 (51.Qb6 Ka4 52.Ra5) 51...Ka2 52.Bc4 Ka1 53.Rc1 (53.Ra3) 1-0. FeegLood (2620) - Kralj92 (1825), lichess.org, 2015.

    6.f4 Ne7 7.Qh5 g6 8.Qh4=+.

    4.e3 Nc6

    5.b5 d4?? 6.bc6+– de3 7.de3 (7.fe3!? bc6 8.Nc3 Ne7+–) 7...Qd1 8.Kd1 bc6 9.Bc4 Rb8 10.Ne2?? (better is 10.Ra2+–) 10...Rb2+= 11.Nbc3 (11.Bb3 f5+=) 11...Bf5?? (better is 11...Rb6-/+) 12.e4 Bg6 13.f3 (better is 13.Bb3+=) 13...Bf7 14.Bf7 Kf7 15.Kc1 Rb6 16.Rd1 Bd6 17.Ng3 g6 18.Na4 Ra6 19.Nc3 (19.Nb2 Ne7-/+ (19...Ba3?! 20.Kb1=)) 19...Ne7 20.a4 Nc8 21.Nge2 Nb6 22.a5 (22.Kd2 Nc4 23.Ke1 Rb8–+) 22...Nc4 23.Ra4 Ba3 24.Kb1 Rb8 25.Ka2 Ra5 26.Ra5 (26.Rc4 Bb4 27.Kb2 Bc5 28.Nb5 Rbb5 29.Kc3 Ra3 30.Kd2 Bb4 31.c3 Ra2 32.Ke1 Bc5–+) 26...Rb2 27.Ka1 Na5 28.Rd7 (28.Rc1 Nc4 29.Nb1 Bb4–+) 28...Ke8 (28...Ke6 29.Rd3 Rc2 30.Nd1–+) 29.Rc7 (29.Rh7 Rc2 30.Rh8 Kd7–+) 29...Rc2 30.Ra7 (30.Rc8 Kd7 31.Rb8–+) 30...Nc4 (30...Nb3 31.Kb1 Rb2) 31.Ra4-/+ Bb2 32.Kb1 Na3?? (better is 32...Ne3 33.Ra2 Rc3 34.Nc3 Bc3 35.Ra8 Kd7 36.Ra7 Ke6-/+) 33.Ra3!+– Ba3 34.Kc2 Bc5 35.Kb3 h5 36.Kc4 Be3 37.h3 Kd7 38.g4 hg4 39.hg4 Bg5 40.Kc5 Be3 41.Kb4 Kd6 42.Na4 c5? (better is 42...Ke6+–) 43.Kc4 Kc6 (43...Bh6 44.Nec3+–) 44.Nec3 Bg5 45.Nb5 (45.Nd5!? Kd6+–) 45...Be3 46.Na7 (46.Nac3 Kd7+–) 46...Kb7 47.Nb5 Kc6 48.Nbc3 Bd4?? (48...Bg5 49.Nd5 Kd6+–) 49.Nd5+– f5 (49...Kd6+–) 50.gf5 gf5 51.Ne7 Kd6 (51...Kd7 52.Nf5 Bg1 53.Nc5 Kc6 54.Na6+–) 52.Nf5 (52.Nf5 Kc7 53.Nc5+–) 1–0. Neumann,Frank (1650) – Blohm,Detlev (1990), remoteschach.de, 2008.

    5.b5 Bd7?? 6.bc6+– Bc6 (6...bc6 7.Nc3+–) 7.c4 (7.d4!? e4+–) 7...dc4 8.Bc4?? (8.Qc2 Qd5+–) 8...Ne7?? (better is 8...Bg2 9.Bg8 Qd3 (9...Bh1?! 10.Qb3 Qe7 11.Ne2+=) 10.Qh5 g6+=) 9.Nf3+– Nf5 (9...b5 10.Bb3+–) 10.0-0 Bf3 (10...Qd7 11.d4 e4 12.Nfd2+–) 11.Qf3 Bc5 (11...Nd6 12.Be6 e4 13.Qh5 g6+–) 12.Qf5 a6 (12...Qe7 13.d4 ed4 14.ed4+–) 13.Qe6 (better is 13.d4!? Be7 14.de5 Qc8+–) 13...Qe7 14.Qe7 (14.Qg4 c6+–) 14...Be7 (14...Ke7 15.d4 Bd6 16.Nc3+–) 15.d4 ed4 (15...Bd6 16.Nc3+–) 16.Bd4 (16.ed4 Rd8+–) 16...0-0-0 (16...c5 17.Bb2+–) 17.Nc3 (17.a4 c5 18.Bc3 Bd6+–) 17...b5 (17...c5 18.Nd5 Bd6 19.Bc3+–) 18.Be6 Kb8 19.Rac1 (19.Nd5 Rd6 20.Bf7 Rf8 21.Ne7 Rf7+–) 19...Rd6 (19...Ba3 20.Ra1 Rd6 21.Bf5+–) 20.Bh3 (20.Bg4 Rdd8 21.Nb1 Bd6+–) 20...Rhd8 (20...Rdd8 21.Nb1+–) 21.Ne4 (better is 21.Bc5 R6d7 22.Bd7 Bc5+–) 21...R6d7 (21...Rd4 22.ed4 Ba3 23.Ra1+–) 22.Bd7 Rd7 23.Nc5 Bc5 24.Bc5 Rd2 (24...Kb7 25.Rfd1 Rf7 26.e4+–) 25.Bb4 Rd7 26.g3 (26.Rfd1 Rd1 27.Rd1 Kc8+–) 26...Kb7 27.Rc5 Kb6 28.Rfc1 Rd6 (28...h5 29.Rc6 Kb7 30.Kg2+–) 29.Rc7 a5 (29...Rd1 30.Rd1 Kc7+–) 30.Bd6 b4 31.a4 b3 32.R1c6 1–0. Rush,Bradley – Dornfelder, 2004.

    5.Bb5 Bd7 6.Nf3 Bd6 7.Nc3 Nge7 8.d4 e4 9.Nd2 0-0 10.Nde4 (better 10.Ba4!? Be6 11.Nb5=) 10...de4-/+ 11.Ne4 Nb4 (better 11...Bf5!? 12.Qf3 Qd7 13.Nd6 Qd6 14.Bc6 Qc6 15.Qc6 Nc6-/+) 12.ab4?? (better 12.Bd7 Qd7 13.ab4=) 12…Bb4. opperwezen (2700) - mathace (2425), lichess.org, 2016.

    5.c4 Nce7 6.d4 Bf5 (6...ed4!? 7.Bd4 Be6=) 7.de5+– fe5 8.Nf3 (8.Be5 Nc6 9.Nf3 Ne5 10.Ne5 Nf6+–) 8...dc4 9.Nc3 Bd3 (9...Ng6!?+=) 10.Ne5+– Bf1 11.Qh5 g6 12.Qf3 Do you see the mate threat? 12...Qd3?? (better 12...Nh6 13.Rf1 Qc8+–) 13.Qf7 Kd8 14.Qf8 1–0. Pereira – Vintins, internet, 2020.

    5.c4 Nge7 6.Nf3 Bg4 7.h3 Bh5 8.g4 Bg6 9.Be2 (9.d4 ed4 10.Nd4 Nd4 11.Bd4 a5=) 9...Qd6 10.c5 Qe6 11.Qb3 f5 (11...e4 12.Nh4+=) 12.g5 (12.b5 Na5 13.Qc3 Nc4 14.Ne5 Nb2 15.Qb2 Qf6+/–) 12...Bf7 (12...e4 13.Nd4 Nd4 14.Bd4+=) 13.h4 (13.b5 Na5 14.Qc3+/–) 13...g6?? (13...e4 14.Nd4 Nd4 15.Bd4+=) 14.Ne5?? (better is 14.b5 Na5 15.Qc3+/–) 14...Ne5= 15.f4 Bg7 16.fe5 Be5 17.Nc3 a6 18.Bf3 Will d5 fall? 18...Rb8 (18...0-0-0=) 19.Nd5 (better is 19.Ne2 Rf8 20.0-0+=) 19...Nd5+= 20.Bd5 Qd5 21.Qd5 Bd5?? (better is 21...Bb2 22.Qf3 Ba1+=) 22.Be5+/– Bh1 23.Bh8 b6 24.Bd4 bc5 25.Bc5 Kf7 26.Ke2 Be4 27.d3 Bc6 28.Rc1 Bb5 29.Kd2 Rd8 30.Bd4 Rd7 31.Rf1 Ke6 32.Kc3 Rd8 33.Rf4 Ra8 34.e4 a5 (34...Bc6 35.h5!+–) 35.ef5 (35.ba5!? fe4 36.Re4 Kd6 37.Be5 Kd7 38.Rd4 Kc8+–) 35...gf5 36.Bc5 (36.ba5!? Bd7 37.Kb4+–) 36...ab4+/– 37.Bb4 Rc8 38.d4 Rd8 39.Rf3 Rd7? (better is 39...Bc6 40.Rf1 Be4+/–) 40.Re3+– Kf7 41.Re5 c6 42.Rf5 Kg6 43.Re5 Kh5 44.Re7 Re7 45.Be7 Kg6 46.Kb4 Kf7 47.a4 Ba4 (47...Bd3 48.Bf6 Ke6+–) 48.Ka4 Ke7 (48...Ke6 49.h5 Kf7 50.Kb4 Ke7 51.Kc5+–) 49.Kb4 Kd6 50.Kc4 Kc7 (50...Ke6 51.Kc5 Kf5 52.Kc6+–) 51.h5 Kd6 52.g6 hg6 53.h6 1–0. Aybek,Ezgi – Ulusoy,Nisan, TUR–ch (Women), 2008.

    5.d3 d4 6.e4 Nh6 (6...a6 7.Nf3=+) 7.Nf3 Bg4 (7...Bd6 8.c3=+) 8.Be2= Bf3 (8...Qd7 9.Bc1=) 9.Bf3 Bd6 10.Nd2 f5 (10...a5 11.b5 Na7 12.a4=) 11.0-0 Qh4 12.Re1 (12.ef5!? 0-0 13.Bc6 bc6 14.c3+=) 12...Ng4= 13.h3?? (better 13.Bg4 fg4 14.b5=) 13...Qf2–+ (13...Nf2?! 14.Qe2 fe4 15.Ne4 Ne4 16.Be4=+) 14.Kh1 Ne3 15.Qe2 (better 15.Qc1 f4 16.b5-/+) 15...Qh4 (better 15...Qe2!? 16.Re2 Nc2–+) 16.Nf1 (16.ef5 0-0=+ (16...Nc2? 17.Bc6 bc6 18.Nf3+–)) 16...Nf1 17.Rf1 fe4 (better 17...f4!?=+) 18.Be4+= 0-0-0 19.Bc6 bc6 20.Qf2 (better 20.Qf3!?+=) 20...Qf2-/+ 21.Rf2 Rhf8 (21...c5 22.b5-/+) 22.Raf1 (22.Re2 Rf5=+) 22...Rf2-/+ 23.Rf2 Rf8 24.Rf8 Bf8 25.c3 c5 26.Kg1 cb4 27.ab4 (27.cb4 Kb7-/+) 27...dc3 (27...c5 28.bc5 Bc5 29.Kf1–+) 28.Bc3 Bd6 (28...c5!?–+) 29.Kf2-/+ Kb7 30.Ke3 Kb6 31.Ke4 c5 (better 31...Kb5-/+) 32.bc5= Kc5 The passed pawn on a7 quickly leads to threats 33.Be5 (33.d4 ed4 34.Bd4 Kc4 35.Ba7 h6=) 33...Be5 34.Ke5 a5 35.d4 Kc6 36.d5 (better 36.Ke6 Kc7 37.Ke7=) 36...Kd7-/+ 37.d6 (37.g4 a4 38.Kd4=+) 37...a4–+ 38.Kd4 a3 (worse 38...Kd6 39.g3–+) 39.Kc3 a2 40.Kb2 Kd6 41.Ka2 h5 42.Kb2 g5 (42...Ke5 43.Kc2 Kf4 44.Kd2–+) 43.Kc3 g4 (better 43...Ke5 44.Kd2 Kf4–+) 44.Kd3 gh3 45.gh3 Ke5 46.Ke3 Kf5 47.Kf3 Kg5 48.Kg3 h4 49.Kg2 Kf4 50.Kf2 Kg5 51.Kf3 Kh5 52.Kf4 Kg6 53.Kg4 Kh6 54.Kh4 (54.Kh4 Kh7 55.Kh5=). SieStein – Twitch_Kilkon, lichess.org, 2019.

    5.d4 Be6 6.Nd2 (6.b5 Na5 7.de5 Nc4 8.Bc4 dc4+/–) 6...Nge7 (6...a6 7.de5 fe5 8.c4=) 7.c4 (7.b5!? Nb8 8.de5 fe5 9.Qh5 Ng6 10.Ngf3+=) 7...dc4 (7...ed4 8.ed4 dc4 9.Bc4 Nd4 10.Ne2 Bc4 11.Nc4=) 8.Bc4 (better is 8.de5!? c3 9.Bc3 Ne5 10.Be5 fe5 11.Bb5 c6 12.Bc4+=) 8...Bc4-/+ 9.Nc4 ed4 (better is 9...Qd5!? 10.b5 Nd4 (< 10...Qg2 11.Qf3 Qf3 12.Nf3+=; 10...Qb5?! 11.Qe2 a6 12.de5=) 11.ed4 Qc4=+) 10.b5 Ne5 11.Ne5 fe5 12.Nf3 (12.ed4 Qd5=) 12...Ng6 (12...Qd5 13.Qa4=+) 13.ed4 ed4 (better is 13...e4!? 14.Ne5 Qg5=) 14.0-0 Be7 15.Re1 0-0 16.Qd4 Bf6 17.Qd8 Rad8 18.Bf6 Rf6 19.Rad1 Rfd6 20.Rd6 Rd6 21.g3 h6 22.Rc1 c6 23.bc6 bc6 24.Kg2 Ne7 25.Ne5+= a5 26.Rc5 Rd5 27.Rd5 cd5 28.Nd3 Nc6 29.Nc5 Kf7 30.Kf3 Ke7 31.Ke3 Kd6 32.Nb7 Kc7 33.Nc5 Kb6 34.Ne6 g5 35.g4?? Kb5 36.Nd4 Nd4 37.Kd4 Ka4 38.Kd5? Ka3–+ 39.Kc4 a4?? 40.f3?? Kb2–+ 41.h4 a3 42.f4 gf4 43.g5 hg5 44.h5 a2 45.h6 a1Q 46.h7 Qa4 47.Kd3 Qe8 48.Kd2 f3 49.h8R Qh8 0–1. slavisa3 – sachin5, Live Game Caissa's Web, 2004.

    5.d4 Nge7 6.c4 (better 6.b5!? Nb8 7.de5 fe5 8.Be5+–) 6...dc4 7.Bc4 Nf5 8.Qb3 (better 8.d5!? Nce7 9.Nc3=) 8...ed4-/+ 9.e4 Nd6 10.Ne2 (10.Bd5=+) 10...Ne4 (10...Nc4 11.Qc4 Ne5 12.Qb3-/+) 11.Qd3 Increases the pressure on d4 (better 11.Bf7!? Ke7 12.Bd5=) 11...Bf5 12.Nd4 Nd4 13.Bd4 Qd7 14.Nd2 (14.f3 Nd6 15.Qe3 Qe7 16.Bb3-/+) 14...Nc5 (better 14...0-0-0 15.Ne4 Be4 16.Qe4 Re8–+ (16...Qd4?! 17.Qe6 Kb8 18.0-0-/+)) 15.Qe3 Ne6 16.0-0-0?? (16.Bc3 Bd6 17.0-0 0-0+=) 16...0-0-0 (better 16...Qd4 17.Qd4 Nd4 18.Rhe1 Be7–+) 17.Nb3 (better 17.Ba7 Bd6 18.Qf3=+) 17...c5?? (better 17...Bd6 18.Qf3 Ng5–+ (18...Nd4 19.Rd4 Kb8 20.Ba6 Qc6 21.Qc6 bc6 22.Na5+=)) 18.Bc5 (better 18.Bf6 Bd6 19.Bd8 Rd8 20.Nc5 (20.bc5?! Bf4 21.Rd7 Rd7+–) 20...Nc5 21.bc5+–) 18...Qa4?? (better 18...Qc6 19.Be6 Qe6 20.Rd8 Kd8 21.Rd1 Ke8 22.Ba7 Kf7 23.Qe6 Be6+–) 19.Be6+– Be6 20.Qe6 Kc7 (20...Rd7 21.Bf8 Qc6 22.Qc6 bc6 23.Rd7 Kd7 24.Bg7 Rg8 25.Bf6 Rg2+–) 21.Kb2 (21.Rd8 Kd8 22.Rd1 Kc7 23.Na5 Qd1 24.Kd1 Bc5 25.Qf7 Kd6 26.Nb7 Ke5 27.Nc5+–) 21...Bc5 22.bc5 (22.Nc5 Qc6+–) 22...Rd1 (22...Qf4 23.Qe7 Kc8 24.c6 (worse 24.Qg7 Qf2 25.Ka1 Qc2 26.Qg4 f5+–) 24...Qe5 25.Qe5 fe5 26.cb7 Kb7 27.Na5 Ka6 28.Nc4+–) 23.Rd1 Re8 (23...Qe8 24.Nd4 Qd7+–) 24.Nd4 (better 24.Qd6 Kc8 25.c6 Qc6 26.Rc1 Qc1 27.Kc1+–) 24...Re6= 25.Ne6 Kc6 26.Rd6 Kb5 27.Ng7?? (better 27.Rd4 Qa5 28.a4 Ka6 29.Rd6 b6 30.Kb3=) 27...Kc5 (better 27...Qf4 28.Ne6 Qf2 29.Kc3 Qg2 30.Nd4 Ka4 31.Rf6 Qh2–+ (31...Ka3?! 32.Rf7–+)) 28.Rf6?? (28.Rd2 Kc4 29.h3–+) 28...Qd4 29.Kb3 Qf6 30.Ne8 Qf2 31.g4 Qh2 (31...Qh2 32.g5 Qh3 33.Kc2 Qf5 34.Kc3 Qg5–+) 0–1. pat_cash87 – RodrigoSantos19, lichess.org, 2020.

    5.Nf3 Be6 (--> 4.e3 Be6 5.Nf3 Nc6).

    5.Nf3 Nge7 6.c4 Be6 7.cd5 Bd5 8.Nc3 Be6 9.Bb5 Ng6 (9...a6 10.Ba4=) 10.Bc6 bc6 11.0-0 Bd6 12.Ne4 0-0 13.Nd6 (13.d4 Bc4 14.Re1 Bd5+=) 13...cd6= 14.Rc1 Qd7 15.d4 Bg4 (15...a5 16.ba5 Ra5 17.Qd2+=) 16.h3= Bf3 17.Qf3 Rac8 18.Rfd1 Qe8 19.de5 fe5 20.Qe4 d5 21.Qg4 Qf7 22.Rd2 a6 (22...Qf6 23.h4=) 23.Rdc2 Rc7 (23...a5 24.b5+=) 24.Qg3 (24.Qe2+/–) 24...Rfc8? (better is 24...Qf6!?+=) 25.Be5+– Ne5 26.Qe5 Re7 27.Qg3 Qe6 28.Rc5 Rec7 29.Ra5 Qf6 30.Ra6 Qb2 31.Rc5 h6 32.Qd6 Qa1? 33.Kh2 Qf1 34.Rac6 Rc6 35.Rc6 Rc6 36.Qd5 Kh8 37.Qc6 Qf2 38.Qc5 Kh7 39.a4 g6 40.a5 h5 41.a6 h4 42.Qe5 1–0. Fournier,Frederic – pablo55 (1700), Active, 2007.

    5.Nf3 Bf5 6.c4 dc4 7.Bc4 Nge7 8.0-0 Bb1 (8...Bd3!? 9.Qb3 Bc4 10.Qc4 Qd5+=) 9.Rb1 Qd7 10.d4 ed4 11.Nd4 Nd4 12.Qd4 (12.Bd4 Nc6+/–) 12...Qd4 13.Bd4 0-0-0? (better is 13...Nf5!?+/–) 14.Rfd1 (14.Ba7!? Rd6+–) 14...Nc6 15.Be6 (better is 15.Ba7!? Rd6 16.Rd6 Bd6 17.Be6 Kd8 18.Bc5+–) 15...Kb8+= 16.Bb2 Be7 17.b5 Rd6?? (better is 17...Ne5+=) 18.Rd6+– (18.bc6?! Re6 19.cb7 Rb6=) 18...Bd6 19.bc6 bc6 (19...b6+–) 20.Bd7 (20.Bf6 Ka8 21.Bd7 Bb4 22.Rb4 Rb8 23.Bc6 Rb7 24.Bb7 Kb8 25.Be4 Kc8 26.Bf5) 20...Rd8 (20...Bc5 21.Bf6 Bb6 22.Bg7 Rg8+–) 21.Bf6 Ka8 (21...Bb4 22.Rb4 Ka8 23.Bc6) 22.Bc6 1–0. Fournier,Frederic – tomseb (1680), Active, 2007.

    5.g3 Bd6 6.Bb5 a6 7.Ba4 b5 8.Bb3 Be6 9.Nc3 Nge7 10.Qh5 g6 (10...Bf7 11.Qf3=+) 11.Qh6 (better is 11.Qf3+=) 11...Nf5-/+ 12.Qh3 Qe7?? (12...Nfd4 13.Qh6 Bf8–+) 13.Bd5 Ne3 (better is 13...Bd5!? 14.Nd5 Qe6+=) 14.Be6 (14.Qe6?! Nc2 15.Kd1 Qe6 16.Be6 Na1+=; 14.fe3?! Bh3 15.Bc6 Kf7 16.Ba8 Ra8 17.Nh3 a5+–; 14.de3 Bh3 15.Bc6 Kf7 16.Ba8 Ra8 17.Nh3 a5 18.Nb5 ab4+=; 14.Bc6?! Kf7 15.Qh4 Nc2 16.Kf1 Na1 17.Ba8 Nb3+/–) 14...Nc2 15.Kd1 Na1 16.Nd5 (16.Ba1?! Nd4 17.Ba2 c6+=) 16...Qg7 17.Ba1 (better is 17.Bd7! Kd8 18.Bc6+–) 17...f5 18.Qh4 h5? (better is 18...Rf8!? 19.Nf4 Nd8=) 19.Qg5 Nd8 20.Nf6 Kf8 21.Nd7 Ke8 22.Nf6?? Kf8+/– 23.Nd7 Ke8+– 24.Bf5! Rf8 25.Nf8 Kf8 26.Bg6 Nf7 27.Qh5 1–0. willi_weizenkeim – JTM, playchess.de, 2003.

    5.h3 Be6 6.Nf3 Bd6 7.Be2 Nge7 8.Qc1 e4 9.Nd4 Nd4 10.Bd4 0-0 11.c4 c6 12.c5 Bc7 13.Bb2 Qd7 14.Nc3 f5 15.Qc2 f4 16.f3 (16.ef4 Bf4 (16...Rf4?! 17.d3=) 17.g3 Be5-/+) 16...ef3 17.gf3 fe3 18.0-0-0? (better is 18.de3 Nf5 19.Qd3-/+) 18...ed2 19.Rd2 (19.Kd2 Bf4 20.Ke1 Qc7–+) 19...Bf4 (19...Bh3?! 20.Bd3 Bf4 21.Bh7 Kh8 22.Nb1–+) 20.Rg1 Bd2 21.Qd2 Ng6 22.h4 Nf4 (22...Rad8 23.h5 Nf4 24.Nb5 Nh5 25.Nd6–+) 23.h5 (23.Ne4 Ne2 (worse is 23...de4 24.Qd7 Ne2 25.Kb1 Ba2 26.Ka1 Rf7 27.Rg7 Kf8 28.Qd6 Ke8 29.Rg8 Rf8 30.Rf8) 24.Qe2 de4 25.Rg7 Qg7 26.Bg7 Kg7 27.Qe4 Rae8–+) 23...Nh5 (23...Ne2?! 24.Ne2 Rf7 25.h6-/+) 24.Qh6 (24.Nd1 Nf6–+) 24...Qf7 (24...Nf4!? 25.Bf1–+) 25.Ne4? (25.Nd5 cd5 26.Qh5–+) 25...de4 26.Qh5 g6 27.Kb1 Qf5 28.Qh6 Rf7 29.fe4 Qe4 30.Ka1 Rd8 31.Bc3 Qc2 32.Bb2 Rd2 33.Rg6 Qg6 34.Qd2 Rd7 35.Qc3 Qg1 36.Bc1 Qd4 37.Kb2 Qc3 38.Kc3 Kf7 39.a4 Bf5 40.b5 Re7 41.Bf3 Be4 42.Bg4 Kg6 43.Bf4 Bf5 44.Bf3 Rf7?? 45.bc6-/+ bc6 46.Bc6 h5 47.Be8= Kf6 48.Bf7+= Kf7 49.c6 Ke7 50.Kb4 Kd8 51.Bb8 Be4 52.Kc5 a6 53.a5 Kc8 54.Bd6 Bd3 ½–½. Lazar,Yaroslav – Makhtienko,Anastasia, Geller Memorial op–B 4th, 2008.

    5.b5 Na5=

    6.d4 Nc4 7.Bc4+= dc4 8.Qf3 (8.de5 Qd1 9.Kd1 Bd7+=) 8...Bd6 (8...ed4 9.Bd4 Qd7 10.Nc3=) 9.Nd2 (9.de5 fe5 10.Be5 Nf6 11.Bf6 Qf6 12.Qf6 gf6+=) 9...Be6 (9...ed4 10.ed4 Qe7 11.Ne2+=) 10.Ne2 (10.de5 fe5 11.Be5 Nf6+/–) 10...Ne7+= 11.de5 fe5 12.0-0 (12.Rd1 a6 13.Ne4 Qb8+=) 12...c6 (12...a6!?=) 13.Ne4+= Ng6? (better is 13...Bb8 14.Qh5 Bf7+=) 14.Rad1+– (14.Nd6?! Qd6 15.Rad1 Qf8+=) 14...Bd5 15.Nd6 Qd6 16.e4 Rf8 (16...Rd8 17.Nc3 Ne7 18.ed5+– (18.Nd5?! cd5 19.ed5 Rf8+–)) 17.Qe3 (17.Qh5 Rf7+–) 17...0-0-0 (17...Rf7 18.ed5 cd5 19.f4+–) 18.bc6 Qc6 19.ed5 Rd5 20.Rd5 Qd5 21.Qa7 Qd6 (21...Kd7 22.Qe3+–) 22.Bc3 Qa6 (22...Rd8 23.Ng3+–) 23.Qe3 Re8 (23...Qe6 24.f4+–) 24.Qh3 Kb8 (24...Kc7 25.Qh7 Qf6 26.Ng3+–) 25.Qh7 Qf6 26.Ng3 Rd8 (26...Rf8 27.Ne4 Qf7 28.Rb1+–) 27.Ne4 Qf7 28.Qh5 b6 (28...Qe6 29.Rb1 Ka8 30.a4+–) 29.Rd1 (29.Be5 Ne5 30.Qe5 Qc7+–) 29...Rd1 30.Qd1 Kc7 (30...Qc7 31.Qd6 Qd6 32.Nd6+–) 31.Qd6 Kb7 32.a4 Qe8 (32...Qf4 33.Qd5 Kb8 34.Bd2+–) 33.Qd5 White intends a5 33...Kc7 (33...Kb8 34.h4!+–) 34.a5 Qc6 (34...Qf8 35.Qc4 Kb8+–) 35.ab6 Kb6 36.Ba5 Kb7 (36...Ka6 37.Qc6 Ka5 38.Nd6 Kb4 39.Qc4 Ka5 40.Qb5) 37.Nd6 Kb8 38.Qc6 Ne7 (38...Nf4 39.Qb7) 39.Qb7 1–0. Fiedler,Peter – Ripke,Thomas, Einzel_Juli06, 2006.

    6.d4 e4 7.Nd2 f5 8.Bc3 c6 9.Bb4 Nf6 10.Nh3 Bd6 11.c3 Bc7 12.Nf4 =.

    5.b5 Nce7

    6.d4 e4 7.c4 =.

    6.f4 ef4!? 7.ef4 Qd6=+.

    6.f4 Nf5 7.fe5+= fe5 8.Be5 Bd6 9.Bd6 Qd6 10.Nf3 Nf6 11.Be2 Ne4 12.0-0 Nh4?? (12...0-0 13.c4+=) 13.Qe1 (better 13.Nh4 Be6 14.Bg4+-) 13...Nf3 14.Bf3 Ng3?? (better 14...Nf6+/-) 15.d3 (better 15.Qg3 Qg3 16.hg3+-) 15...Nf1-+ 16.Qf1 d4 (better 16...Qe5!? 17.Nd2 Qe3 18.Qf2 Qf2 19.Kf2 0-0-/+) 17.ed4 (17.ed4 Qd4 18.Kh1 Qa1 19.c3-+). FeegLood (2220) – eyehawk, Time forfeit, lichess.org, 2015.

    5.c4 a6

    6.cd5 Qd5 7.Nc3 Qd8 8.d4 (8.Bc4 Bf5=) 8...Nge7 (8...ed4 9.ed4 Nd4 10.Ne4=+) 9.g3 (9.d5 Nb8+=) 9...Bf5 (9...ed4 10.ed4 Nd4 11.Bg2-/+) 10.Bg2 (better 10.d5!? Nb8 11.e4=) 10...Nd5?? (better 10...ed4 11.ed4 Qd4 12.Qh5 Bg6=+) 11.Bd5+– (11.Bd5 Qd7 12.de5 Ne5 13.e4+–) 1–0. pat_cash87 – Sp33dy90, lichess.org, 2020.

    6.cd5 Qd5 7.Nc3 Qe6 8.Bd3=.

    6.cd5 Nce7 7.Nc3 (7.e4!?+/–) 7...Nd5= 8.Nd5 Qd5 9.Nf3 Ne7 10.Be2 Ng6 11.0-0 Bg4 12.h3 Bf5 13.d3 e4 (13...Be6 14.Rc1+=) 14.de4 (14.Nd4 Bc8+/–) 14...Qd1 15.Rfd1 Be4 16.Rac1 c6 17.Rd4 f5 18.Rcd1 Be7 (better is 18...Bd5!?+/–) 19.Rd7+– 0-0 Black prepares the advance f4 20.Rb7 Rfd8 (20...c5 21.Rc7 cb4 22.Rdd7+–) 21.Rd8 Rd8 22.Kh2 (22.Bc4 Kh8 23.Ne5 Rd1 24.Bf1 Bf8+–) 22...f4 (better is 22...c5!? 23.Bc4 Kf8+/–) 23.ef4+– (23.Ba6?! Bf3 24.gf3 fe3+/–) 23...Nh8?? (23...c5 24.Ra7 cb4 25.ab4 Ra8+–) 24.Bc4 (better is 24.Re7 Bf3 25.Rg7 Kf8 26.Bf3 Rd2 27.Rh7 Nf7+–) 24...Kf8 25.Ba6 (better is 25.Bg7 Ke8 26.Ne5+–) 25...Bf3 26.gf3 Rd2 (26...Ng6 27.f5 Bd6 28.Kh1+–) 27.Be5 (27.Bg7 Kg7 28.Re7 Kf6+–) 27...Rf2 (27...Ng6+–) 28.Kg3 Ra2 (28...Rd2 29.Bg7! Kg7 30.Re7 Kf6+–) 29.Rb8 Kf7 30.Bc4 Kg6 31.Ba2 Nf7 32.Bf7 Kf7 33.Rb7 1–0. Fournier,Frederic – yessid1a, Active, 2008.

    5.c4 dc4

    6.Bc4 Bd6 7.Nf3 Bg4 8.Be2 Nge7 9.h3 Bh5 (9...Be6 10.d4 ed4 11.b5=) 10.0-0 (10.Ne5 Be2 11.Nc6 Bd1 12.Nd8 Bf3 13.gf3 Rd8+/–) 10...e4 11.Nd4 Be2 12.Qe2 Nd4 13.Bd4 0-0 14.d3 ed3 15.Qd3 Nc6 16.Qc4 Kh8 17.Bb2 Ne5 18.Qc2 Re8 19.Nd2 a5 20.b5 b6 21.Rad1 Qd7 22.a4 Rad8 23.Nc4 Nc4 24.Qc4 Qe6 25.Qe6 Re6 26.g3 Re4 27.Bd4 Rde8 28.Kg2 Be5 (28...R4e6 29.Rd3+=) 29.Be5 (29.f3!? Bd4 30.fe4+– (30.ed4?! Re3+=)) 29...R8e5 30.Rd8 Re8 31.Rfd1 h6 32.Re8 Re8 33.Rd7 Rc8 34.f4 f5 35.Kf3 c6 36.bc6 (36.Rb7!? cb5 37.ab5+–) 36...Rc6 37.Rb7 Kh7 38.g4 Kg6 (better is 38...fg4!? 39.hg4 Rc4+/–) 39.gf5+– Kf5 40.Rg7 Rc4 41.Rb7 Rb4 42.h4 h5 43.Rh7 Kg6 44.Rb7 Kf5 45.Rh7 Kg6 46.Rb7 (better is 46.Rd7+/–) 46...Kf5= ½–½. Fournier,Frederic (1730) – Sinniv, Active, 2007.

    6.Bc4 Nge7 7.Qb3 Ng6 (7...Qd6 8.Bf7 Kd7 9.Nc3+=) 8.Bf7 Ke7 9.Bg8 (9.h4!? e4 10.Bd5+/–) 9...Qd6= 10.Bc4 (10.Nc3 Kd8+=) 10...Be6 (10...Nh4 11.g3 Ng6 12.Nc3=) 11.Be6 (11.Ne2 Rd8=) 11...Qe6 12.Qe6 Ke6 13.Nf3 (13.Nc3 Nh4 14.g3 Nf5=) 13...Bd6 (13...e4 14.Nd4 Nd4 15.Bd4+=) 14.Nc3= a6 (14...Rhd8 15.0-0=) 15.Ne4 (15.Rc1 Rad8=) 15...b5 (15...f5 16.Ng3=) 16.Rc1 Nce7 17.Nc5 (17.h4 a5 18.ba5 Ra5+=) 17...Bc5 18.Rc5 c6 (18...e4 19.Nd4 Kd7 20.f4=) 19.Ke2 (19.d4 e4 20.Nd2 f5+=) 19...Rhd8 (better is 19...a5!?=) 20.d4+/– ed4 (20...Rd5 21.de5 Ne5 22.Nd4 Kf7 23.Rd5 cd5 24.Rc1=) 21.Nd4 (21.Bd4?! a5 22.Rc2 ab4 23.ab4 Ra6=) 21...Kd6? (21...Kd7 22.Rd1 Ke8 23.Nc6 Rd1 24.Kd1 Nc6 25.Rc6+/–) 22.Rhc1 (22.Rd1 Rd7+–) 22...Rdc8 (22...Kd7 23.Nc6 Nc6 24.Rc6+/–) 23.f4 (23.Rd1!? Kd7 24.Nf5 Ke6 25.Ng7 Kf7+–) 23...Nd5 (23...Nf8 24.Rd1 Kc7 25.e4+/–) 24.Rc6 (24.g3 Kd7 25.Nc6 Nb6+/–) 24...Rc6+/– 25.Rc6 (worse is 25.Nc6 Re8 26.Kf2 Re3-/+ (26...Ne3?! 27.Na5=)) 25...Kd7 26.g3 Re8 (better is 26...Nge7!? 27.Rc2 Nb6+/–) 27.Ra6+– Re3 (27...Ne3 28.Ra7 Kd6 29.Kd3+– (29.Nb5?! Kc6 30.a4 Nc4 31.Be5 Kb6+–)) 28.Kd2 h5 (28...Nge7 29.Ra7 Kd8 30.Nb5+–) 29.Nb5 (better is 29.Ra7 Kd8 30.Rg7 (30.Nb5?! Re7+–) 30...Ngf4 31.gf4+–) 29...h4 (29...Nge7+–) 30.Rd6 Ke7 31.Rd5 Rf3 32.Nd4 (32.f5!? Rf2 33.Kc1 Ne5 34.Be5 fe5 35.Re5 Kf6+–) 32...Rf2 33.Ne2 (better is 33.Kc3 Rh2 34.f5 Ne5 35.gh4 Rh4+–) 33...hg3 (33...Rh2 34.f5 Ne5 35.Be5 fe5 36.g4+–) 34.hg3 Ke6 (34...Rf3 35.a4+–) 35.Rc5 (35.Rh5 Kf7+–) 35...Kd6 (35...Ne7 36.a4+–) 36.a4 Ne7 37.Ke3 (37.Bd4 Rf3+–) 37...Rh2 (37...Rf1 38.Bc3+–) 38.a5 (38.Ba3 g6+–) 38...Nc6 (38...Nd5 39.Kd2 Nb4 40.Rb5+–) 39.Rc6! Kc6 40.Nd4 (40.Bd4 Kb5 41.Bc5 g6+–) 40...Kd5 41.Bc3 Rh3 (41...Kc4 42.Ne2+–) 42.Kf3 (42.Be1 Rh1 43.Bd2 Rh3+–) 42...Rh8 (42...Kc4 43.Ne2+–) 43.a6 (43.Ne2 Kc4 44.f5 Rh2+–) 43...Kc4 44.b5 Kc3 45.b6 Kd4 (45...Kd4 46.a7 Ra8+–). jaddwarrior (2140) – barryburn29223 (2080), ChessWorld.net, 2013.

    6.Bc4 Nge7 7.Nf3 Nf5 8.0-0 e4 9.Ne1 Qe7 10.d4 a6 11.Nc3 b5? (11...Nd6 12.Bd5+=) 12.Bb3 (12.Bd5 Bb7+–) 12...Qd6? (better is 12...Nd6!?+/–) 13.Rc1 Be7 14.Ne4 Qd7 15.Nf3 Bb7 16.Nc5 Qc8?? (16...Bc5 17.Rc5 Nce7+–) 17.Nb7 Qb7 (17...Bb4 18.e4 Nfe7 19.d5+–) 18.Qc2 (better is 18.Bd5 Bc5 19.Qc2+–) 18...Kd7 (18...Ne3 19.fe3 Nb8+–) 19.Qf5 Kd8 20.Bd5 Rb8 21.Bc6 (21.Bc6 Qc8 22.Qd5 Bd6 23.e4+–) 1–0. Fournier,Frederic (1900) – guest4770, Active (5/0), 2005.

    6.Bc4 Bf5 7.Nf3 Qd7 8.0-0 1–0. Fournier,Frederic (1870) – jorgesp, Active, 2008.

    6.Bc4 Nh6 7.h3 Be6?? 8.Qe2 Bd5 9.Nf3 Qd6 10.Bd5+= Qd5 11.Nc3 Qb3 12.Rb1 Bb4? 13.ab4+– Nb4 14.Qb5?? c6+/– 15.Qa4 Nd3 16.Kf1 Qa4= 17.Na4 b5 18.Nc3 0-0 19.Ke2 Nc5?? 20.d4 ed4 21.Nd4 Rac8? 22.Ba3 Na4 23.Na4 ba4 24.Bf8 Kf8 25.Rhc1 c5 26.Ne6 Kf7 27.Nc5 Nf5 28.Na4 Rc1 29.Rc1 Nd6 30.Rc7 Ke6 31.Ra7 h5 32.Rg7 Nf5 33.Rh7 h4 34.Kf3 1–0. rommeltdf (1660) – bar, net–chess.com, 2002.

    5.c4 d4

    6.b5 Nce7 7.ed4 b6? (better is 7...ed4 8.Bd3 Qd6+=) 8.de5+– Bb7 9.ef6 Nf6 10.Bf6 gf6 11.Nf3 Bg7 12.Nc3 Qd6 13.Qc2 0-0-0 14.Be2 Kb8 15.a4 f5 16.0-0-0 (16.a5!?+/–) 16...Qa3 17.Qb2 Qb2 (better is 17...Qd6!?+=) 18.Kb2+/– h5 (18...c5 19.Rhe1+/–) 19.Ng5 (better is 19.Rhe1+–) 19...Bh6?? (better is 19...Rdg8 20.h4 Bf6+–) 20.Nf7+– Rd2 (20...Bg2 21.Rhg1 Bb7+–) 21.Rd2 Bd2 22.Nh8 Bg2 23.Rg1 Bc3 (23...Bh3 24.Bh5 Bf4 25.Nf7+–) 24.Kc3 Be4 25.h4 f4 (25...Kc8 26.Rg7 Kd8 27.Bh5+–) 26.Bh5 Kb7 (26...Nc8 27.Ng6+–) 27.Re1 Nd5 28.cd5 Bd5 29.Bf7 Bf3 30.Ng6 a6 31.Nf4 ab5 32.ab5 c6 33.Re7 Kc8 34.bc6 (34.Be6 Kd8 35.Rd7 Kc8 36.Rd3 Kc7 37.Rf3 Kd6 38.Rd3 Ke5 39.bc6 b5 40.c7 b4 41.Kb4 Ke4 42.c8Q Kf4 43.Qf8 Ke5 44.Qf5) 34...Bc6 35.Ne6 Bh1 36.h5 b5 37.h6 Be4 38.Bg8 (38.Re8 Kb7 39.Nc5 Kb6 40.Ne4 b4 41.Kb4 Kb7 42.Re7 Kb6 43.h7 Kc6 44.h8Q Kb6 45.Qf6) 38...b4 39.Kb4 Bf5 40.h7 Bh7 (40...Be4 41.h8Q Bc6 42.Bf7 Be8 43.Qe8) 41.Bh7 Kb8 42.Kb5 1–0. Fournier,Frederic (1915) – morganoxxx (1735), Active, 2011.

    6.b5 Nce7 7.ed4 ed4 8.Bd3 Qd6 +=.

    6.b5 Nce7 7.ed4 ed4 8.Nf3 c5 9.Bd3 b6 10.0-0 Ng6 11.Be4 Rb8 12.Re1 Be7 13.Bc6 Bd7 14.Bd4?? cd4 15.Nd4=+ Ne5 16.Ne6 Qc8 17.d4 Nc4 18.d5 Bc6 19.Ng7+/– Kf7 20.Ne6 Bb5?? 21.Qh5 1–0. xadrezpg (2290) – polog (2010), net–chess.com, 2010.

    6.d3 Bf5 7.e4 Bg6 8.Nf3=+ Qd7 9.Be2= Be7 10.Nbd2 Nh6 11.Nh4 Bf7 12.h3 f5 13.Nf5 Nf5 14.ef5 Qf5 15.Ne4 0-0-0?? 16.Bg4+– (16.Bg4 Be6 17.Bf5 Bf5 18.Qe2+–) 1–0. coloplayah (1930) – antoniowithouthelp (1865), net–chess.com, 2005.

    6.ed4 Nd4 7.Nf3 Bg4 8.Be2 Ne2 9.Qe2 Ne7 10.h3 Bh5 11.0-0 Nc6 (11...Qd6 12.d4 ed4 13.Rd1=) 12.Qe3 Be7 13.Nc3? (13.d4 ed4 14.Nd4 Nd4 15.Bd4 0-0=) 13...0-0 (better is 13...Nd4!? 14.Rad1 a5-/+) 14.Nd5= Bf7 15.Ne7 Qe7 16.d3 Rad8 17.Rfd1 Rd7 18.Rd2 Rfd8 19.Rad1 Nd4 (better is 19...Bh5!?=) 20.Nd4+/– ed4 21.Qe7 (better is 21.Bd4!? b6 22.Qe7 Re7 23.Be3+/–) 21...Re7= 22.Kf1 Bh5 23.Re1 Re1 24.Ke1 Kf7 25.f3 f5 26.Re2 b6 27.Re5 Kf6 28.Rd5 (better is 28.f4!?+=) 28...Rd5-/+ 29.cd5 Ke5 30.d6 cd6 31.Kf2 g5 32.g3 Bf7 33.h4 gh4 34.f4 Kd5 35.gh4 h5 36.Ke2 a5 37.Kd2 ab4 38.ab4 b5 39.Kc2 Be6 40.Kd2 Bf7 ½–½. Fournier,Frederic (1810) – hierros, Active (5/0), 2006.

    6.Nf3 de3 7.de3 Qd1 8.Kd1 Bg4 9.Be2 0-0-0 10.Kc2 e4 11.Nd4?? (better is 11.Ng1 Bf5 12.Nc3+=) 11...Nd4–+ 12.Bd4 Be2 13.Nc3 Bc4 14.Rhd1 (14.Ne4 Bd5 15.f3 Be4 16.fe4 Bd6–+) 14...Bd3 15.Kb2 Ne7 16.f3 f5 17.h3 (17.g4 Bc4 18.fe4 fg4 19.Ba7 b6 20.Rd8 Kd8–+) 17...Nd5 (better is 17...Nc6!? 18.b5 Nd4 19.ed4–+) 18.g4 g6 (better is 18...Nc3 19.Kc3 Be2–+) 19.Nd5+= Rd5 20.fe4?? (20.Bh8 ef3 21.gf5 gf5 22.Kc3+=) 20...fe4 (better is 20...Rd4 21.ed4 fe4 22.Rd3 ed3 23.Rd1–+) 21.Rac1?? (21.Bh8 c5=) 21...Bd6 (better is 21...Rd4 22.ed4 Bg7 23.Rd3 ed3–+) 22.Kb3?? (better is 22.Bh8 a5 23.Kb3=) 22...Rf8–+ 0–1. Fournier,Frederic (1750) – peon54 (1740), Active, 2004.

    6.Nf3 de3 7.fe3 Be6 8.Be2 Nge7 9.0-0 Nf5 10.d3?? (better is 10.Nc3=) 10...Ne3–+ 11.Qe1 Nf1 12.Qf1 Nd4?? (better is 12...a5–+) 13.Nd4-/+ ed4 14.Nd2 c5 15.b5? (15.Re1 Kd7 (15...cb4?! 16.Bg4=) 16.bc5 Bc5-/+) 15...b6 (15...Bd6!? 16.Ne4–+) 16.a4 (16.Bh5!? g6 17.Bf3–+) 16...Bd6 17.Nf3? (better is 17.Bf3 Rc8 18.Re1–+) 17...0-0 18.h3 Qc7 19.Re1 Bg3 20.Rd1 Qf4 21.Bc1 Qc7 22.Bd2?? (22.Bb2 a6 23.Nd2–+) 22...Rfe8 23.Be1 Be1 24.Re1 Qg3 25.Qf2 Qf4 26.Bd1 (26.Nh2 Qf2 27.Kf2 Re7–+) 26...Bf5 27.Bc2 Re1 28.Qe1 (28.Ne1 Qg5 29.Nf3 Qc1 30.Kh2 Qe3–+) 28...Qe3 (better is 28...Bh3!? 29.gh3 Qf3 30.Qe6 Kh8 31.h4–+) 29.Qe3 de3 30.Kf1 Re8 31.Ke2 Bg6 32.g4 f5 33.gf5 Bf5 34.h4 (34.Ng5 h5–+) 34...Bg4 35.Bb1 (35.Bd1–+) 35...Rf8 (35...Bf3 36.Ke1 g5 37.d4 gh4 38.Bf5 cd4 39.Kf1–+) 36.Ke3 0–1. Fournier,Frederic (1795) – hierros (1690), Active, 2005.

    5.c4 Be6

    6.c5 d4 7.d3 de3 8.fe3 Qd7 9.Nf3 0-0-0 10.Be2 Nh6 11.0-0 a6 12.Nc3 Be7 13.Qa4 Ng4 14.b5 (14.Bc1 Na7+=) 14...ab5 15.Nb5 (better is 15.Qa8!? Nb8 16.Qa7=) 15...Kb8-/+ (15...Bc5?! 16.Qa8 Nb8 17.d4=) 16.d4 e4 17.d5 (better is 17.Nd2!? Ne3 18.Rf2-/+) 17...Bd5–+ (17...ef3 A) 18.de6 Qe6 19.Bf3 Qe3 (19...Ne3?! 20.Rfc1=) 20.Kh1 Nf2 21.Rf2 Qf2 22.Bc6 Bc5=; B) 18.dc6 Qc6 19.Bf3+/–; 17...Qd5 18.Rad1 Qa2 19.Nfd4 Bc5 20.Nc6 bc6 21.Nd4=) 18.Nfd4 Ne3 19.Nc6 Qc6 20.Qa7 Kc8 21.Rfc1 Nf5 (21...Qa6 22.Qa6 ba6 23.Nd4-/+) 22.a4? (22.Bg4 g6 (22...Qb5?? 23.Bf5 Be6 24.Be6 Qd7 25.Qa8) 23.Nd4 Qa6 24.Qa6 ba6+=) 22...h5 (better is 22...Qa6–+) 23.a5?? (23.Nd4 Nd4 24.Bd4+=) 23...e3 (better is 23...Kd7 24.Nd6 cd6 25.cd6 Qd6–+) 24.a6 (24.Na3 Qe6 25.Rd1+/–) 24...Rde8?? (better is 24...g6+=) 25.ab7 (better is 25.Bd3 g6 26.Bf5 gf5 27.Nd4+–) 25...Qb7+/– 26.Nd6 Nd6 27.Ba6 Nb5 28.Bb7 Bb7 29.Qa5 c6 30.Rab1 Rd8 31.Ba3 e2 32.Bb4 f5 33.Be1?? Rd5 34.Rb5 cb5 35.Qb5 Bg5?? 36.Rb1+– Be3 37.Kh1 Rd7 38.c6 Re7 39.cb7 Kb8 40.Qa6 (40.Qa6 Kc7 41.Ba5 Kd7 42.Qd3 Ke6 43.Qe3 Kf7 44.Qd4+–) 1–0. Fournier,Frederic – Mephisto Mondial, Match Thematique, 2000.

    6.cd5 Bd5 7.Nc3 Nge7 8.Nd5 Qd5 9.Nf3 Nf5 (9...e4 10.Nd4=) 10.d3 Nd6 11.Be2 Be7 12.0-0 0-0 13.d4 ed4 14.Nd4 Nd4 15.Qd4 Qd4 16.Bd4 b6 (16...a5 17.Rfc1 c6 18.Rd1+=) 17.Bf3 (17.Rfc1!?+–) 17...Rad8+/– 18.Rfc1 Nf5 (18...Nb5 19.Rc4+=) 19.Bc3 (better is 19.Rc7!? Nd4 20.ed4+– (20.Re7?! Rf7 21.Rf7 Nf3 22.gf3 Kf7+/–)) 19...c5+/– 20.bc5 Bc5 21.Bb4 Bb4 22.ab4 Rc8?? (22...Rf7 23.Bg4 g6 24.Ra6+/–) 23.b5?? (better is 23.Bd5 Kh8 24.Rc8 Rc8 25.Be6+–) 23...h6? (better is 23...Rc1!? 24.Rc1 Rd8+=) 24.Bc6+– Nd6 25.g3 Rc7?? 26.Bd5+– Kh8 27.Rc7 (27.Rc7 Nb5 28.Rcc1+–) 1–0. Fournier,Frederic – albmc, Active, 2008.

    6.cd5 Bd5 7.Nc3 Nge7 8.Nd5 Nd5 9.Nf3 Bd6 10.Bc4 Nb6 11.Ba2 Qe7 12.0-0 g5 13.d4 ed4 14.Nd4 Nd4 15.Bd4 0-0-0 16.Bb6?? (16.Qf3 Be5 17.Bc5 Qg7 18.Bb6 cb6 19.Rac1 Kb8+/–) 16...ab6?? (better is 16...Bh2 17.Kh2 Rd1 18.Rfd1 ab6–+) 17.Qa4+= Qe5 18.g3 h5 19.Qa8 Kd7 20.Qb7 h4 21.Rad1 Ke7 22.Qd5 Qd5 23.Rd5 (23.Bd5 g4+/–) 23...hg3 24.hg3 Rh6 (24...Ra8!? 25.b5 Ra3=) 25.Rfd1 Rdh8 26.Kf1 Rh1 27.Ke2 R1h2 (27...Rd1 28.Kd1 Ra8 29.b5=) 28.Kf3 (28.g4 R8h4 29.R1d4 Rh1+/–) 28...R2h5? (28...g4!? 29.Ke2 R8h3=) 29.Bb1 Ke6 30.Bf5 Ke7 31.Bg4 R5h6 32.R1d4 Ra8 33.Rd3 Kf8 (33...Rh1!?+=) 34.Bd7 Ke7 35.Bc6 Rg8 36.R5d4 f5 Black intends g4 37.Rd5 g4 38.Ke2 Ke6?? (38...Rh2 39.Rf5 Bg3 40.Rd7 Ke6 41.e4+–) 39.R5d4 (39.Rd6 cd6 40.Bd5 Ke7 41.Bg8 Rh1+–) 39...Rh2?? (better is 39...Rf8+/–) 40.Bd5 (better is 40.Rd6!? cd6 41.Bd5 Ke7 42.Bg8 Rh1+–) 40...Kf6 41.Bg8 Bg3 42.Rd2 Rf2 43.Kd3 Rf1 44.Rg2 (44.Rg2 Rd1 45.Kc4 Rc1 46.Kb5+–) 1–0. Fournier,Frederic – Arshida, Partie evaluee, 5m + 0s, 2009.

    6.cd5 Bd5 7.Nf3 Nge7 8.Nc3 Be6 9.Be2 Qd7 10.0-0 0-0-0 11.Bb5 (better is 11.Qa4!? b6 12.Rac1+/–) 11...Kb8 12.Qa4 Qd2?? (better is 12...a6 13.Be2 g5=) 13.Nd2+– Rd2 14.Rab1 Ng6 (14...a6 15.Bc6 Nc6 16.b5 ab5 17.Qb5+–) 15.Bc6 bc6 16.Qc6 Bd6 (16...Bd7 17.Qc4 Rd6 18.Rfd1+–) 17.Ne4 Bd5 (17...Rb2 18.Nd6 cd6 19.Rb2+–) 18.Qb5 (18.Nd2?! Bc6 19.Rbc1 Bd5+–) 18...Bb7 19.Nd2 1–0. Fournier,Frederic (1970) – santijack (1900), Active (5/0), 2005.

    6.cd5 Bd5 7.Nc3 Bf7 8.Nf3 Bd6 9.Be2 Nge7 10.0-0 0-0 11.d4 (11.Qc2 Qd7+=) 11...ed4= 12.Nd4 Nd4 13.Qd4 Be5 14.Qe4 Bg6 (14...Qd2!? 15.Rab1 Bc3 16.Bc3 Qe2 17.Qe7 Rfe8+=) 15.Qb7 (15.Bc4 Kh8 16.Qb7+=) 15...Qd7? (better is 15...Qd2!? 16.Bc4 Bf7 17.Bf7 Kf7+=) 16.Rfd1 Qe8 (16...Qe6 17.Qa6 Qa6 18.Ba6+–) 17.Bf3 f5? (better is 17...Qf7+–) 18.Qa8 Qf7 (18...Qa8 19.Ba8 Ra8+–) 19.Qa7 f4 20.ef4 (better is 20.e4 Re8+–) 20...Qf4 21.h3 (21.Nd5 Qh2 22.Kf1 Bb2 23.Ne7 Kh8 24.Ng6 hg6+–) 21...Bc2 (21...Qh2 22.Kf1 Re8 23.Qa4+–) 22.Rd7 (22.Qc5!? Bd1 23.Rd1 Qh2 24.Kf1 Ng6 25.Bd5 Kh8+–) 22...Qh2 23.Kf1 Bb3 (23...Rf3 24.Qc5 (24.gf3?! Qh3 25.Ke1 Qd7+–; 24.Re7? Bd3 25.Ke1 Qg1 26.Kd2 Bf4 27.Re3 Qf2 28.Kd3 Re3 29.Qe3 Be3–+) 24...Rf8 25.Re7+–) 24.Qc5 (better is 24.Re7 Bc4 25.Ke1+–) 24...Nf5 (24...Bd6 25.Qb5 Be6+–) 25.Bd5 Bd5 26.Qd5 Kh8 27.Ke2 Re8 28.Rd8 Bf6 29.Re8 1–0. Souza,Kim Garcia De (1765) – Pi Chillida,Nicole, Curitiba BRA, Terzian Mem, 2014.

    5.d4 ed4

    6.ed4 Qe7 7.Be2 a5 8.b5+= Nd8 9.Nf3 Ne6 10.0-0 Bd7 11.Re1 0-0-0 12.c4 dc4 13.Bc4 g5? 14.d5 Nc5?? 15.Re7 Ne7 16.Nbd2 Bf5 17.Nb3 g4 18.Nfd4 Nd3 19.Bd3 a4 20.Bf5 Nf5 21.Nf5 b6 22.Bf6 Bb4 23.ab4 Rhe8 24.Bd8 Rd8 25.Ra4 Kd7 26.Qg4 h5 27.Qh5 (27…Kc8 28.Qg6 Rd6 29.Qe8 Rd8 30.Ra8 Kb7 31.Qc6; 27.Qg6 Rb8 28.Qe6 Kd8 29.Ra7 h4 30.Qe7 Kc8 31.Rc7) 1–0. Mehlhorn,Uwe – Heinrich,Constanze, remoteschach.de, 2003.

    6.ed4 Qe7 7.Be2 Bg4 8.h3 Bh5 9.Kd2 Be2 10.Ne2=+.

    5.d4 Bd6

    6.c4 Be6 (6...dc4!? 7.d5 Nce7 8.Bc4 a6=) 7.c5 (7.b5 Na5 8.cd5 Bd5 9.de5 fe5 10.Be5 Nf6 11.Bd6 Qd6+=) 7...Be7 8.Bb5 (8.de5 Ne5 9.Be5 fe5 10.Qh5 Kf8=) 8...Qd7 (8...e4!?+=) 9.de5+/– Nh6 (9...a6 10.Qa4+/–) 10.Nf3 (10.ef6 Bf6 11.Bf6 gf6+/–) 10...Nf5 (10...a6 11.Bc6 Qc6 12.ef6 gf6 13.Nd4+/–) 11.Nbd2 (11.Qa4 0-0+/–) 11...a6+/– 12.Ba4 (12.Qa4 0-0 13.Bc6 bc6 14.ef6 gf6+–) 12...0-0-0 (12...0-0 13.ef6 Bf6 14.Bf6 Rf6 15.Ne5+–) 13.Nb3 (13.0-0 Rhe8+–) 13...h5 14.Nbd4 (14.Na5!? Kb8 15.Bc6 bc6 16.Qa4+–) 14...Nfd4+/– 15.Bd4 (15.Nd4 h4+/–) 15...Rh7 (15...f5 16.0-0+/–) 16.Qe2 (16.0-0 f5+/–) 16...Rdh8 (16...Bf5 17.ef6 gf6 18.0-0+/–) 17.b5 Nd4 18.ed4 h4? (18...ab5 19.Bb5 c6 20.Bd3+–) 19.c6 (19.ef6!? Bf6 20.ba6 Qa4 21.Qe6 Kb8+–) 19...bc6 20.ba6 (20.bc6 Qe8 21.Qa6 Kd8 22.Rb1 Ba3 23.Rb8 Ke7 24.Re8 Ke8 25.Qa8 Kf7 26.Qa5+–) 20...Qd8?? (better is 20...h3 21.g3 Bg4+–) 21.Bc6 (21.ef6 Bf6 22.Qe6 Qd7 23.Qc6 Re8 24.Kf1 Qc6 25.Bc6+–) 21...Bg4 (21...Bd7 22.Bb7 Kb8 23.Bd5 Bc8+–) 22.a7 Qd7 (22...Bb4 23.ab4 Bf3 24.a8Q#) 23.a8Q# 1–0. Fournier,Frederic – Vinsot,Serge, Senlis, 1994.

    6.Nd2 e4 (6...ed4!? 7.ed4 Qe7 8.Be2 a5=) 7.c4 (7.Qh5 g6 8.Qd5 f5+–) 7...dc4 (7...f5 8.b5 Nb8 9.cd5+=) 8.Bc4 (8.Ne4 Be6 9.Rc1+–) 8...Nge7 (8...f5 9.d5 Qg5 10.Ne4 fe4 11.dc6 Qg2 12.Qh5 Kd8 13.Qf7+–) 9.Ne2 (9.Ne4 Bf5 10.Qh5 Bg6+–) 9...a6 (9...f5 10.Qb3+=) 10.Nc3 (10.Ne4!? b5 11.Bb3+–) 10...b5 (10...f5 11.Qh5 Ng6 12.g4 fg4 13.Nce4+–) 11.d5 (11.Bb3 f5+–) 11...bc4 (11...Ne5 12.Be2 f5 13.0-0+=) 12.dc6+– Nc6 (12...Be5 13.Qh5 g6 14.Qh4+–) 13.Nde4 (13.Qh5 Kf8 14.Nce4 Be6+–) 13...Be5 (13...Ne5 14.0-0+=) 14.Qd8 (14.Qh5 g6 15.Qf3 0-0+–) 14...Kd8 15.0-0 (15.0-0-0 Ke8+–) 15...Re8 (15...Bf5!? 16.Rfd1 Kc8+=) 16.Rad1 Bd7 17.Nc5 Bd6 18.N3a4 (18.N3e4 Bc5 19.Nc5 Re7+–) 18...Ne5 (better 18...a5 19.b5 Ne5 20.Be5 Re5 21.Nb7 Ke7 22.Nd6 cd6+=) 19.Rd6?? (better 19.Be5 fe5 20.Nd7 Kd7 21.Nb2+–) 19...cd6-/+ 20.Nd7 (20.Nb6 dc5 21.Na8 cb4 22.ab4 Nd3–+) 20...Nd7–+ (worse 20...Kd7 21.Nb6 Ke6 22.Na8 Ra8 23.Rd1-/+) 21.f4? (21.Rd1 Re6–+) 21...Rb8 (21...Re3 22.Rd1 Ke7 23.Nc3–+) 22.f5? (22.Rd1 a5 23.ba5 Re3–+) 22...a5 (better 22...Re3 23.Rd1 Ke7–+) 23.e4 (23.Rc1–+) 23...ab4 24.ab4 Rb4 (worse 24...Re4 25.Nc3 Re5 26.Nd1–+) 25.Nc3 (25.Ra1–+) 25…Rb2 (25...Rb2 26.Re1 Nc5–+) 0–1. pat_cash87 – alexanderwill, lichess.org, 2020.

    5.d4 e4

    6.c4 dc4 7.Bc4 Bd6 8.Bg8 Rg8 9.Qh5 g6 10.Qh7 Be6 11.Nd2 f5+= 12.Ne2 Bf7 13.f3 ef3= 14.Nf3 Qe7 15.Qh6 g5 16.0-0 0-0-0 17.Ng3 Bg3 18.hg3 Rd6 19.Qh7-/+ Qe3 20.Rf2 Be6 21.Re1 Qb3 22.Rfe2 Rd7 23.Qh6 Bd5. wlittle (1645) – mluka (1850), net–chess.com, 2001.

    6.c4 dc4 7.Bc4 f5 8.Qc2 (8.Nh3 Bd6+=) 8...a6 (8...Qg5 9.Bf1 Bd6 10.Nc3=) 9.Nd2 (better 9.d5 Nce7 10.Nc3+=) 9...b5?? (better 9...Qg5 10.Nf1 Bd6= (10...Qg2? 11.Ng3+–)) 10.0-0-0?? (better 10.Bg8 Nb4 11.ab4 Rg8 12.Qb3+–) 10...bc4–+ 11.d5 (11.Nc4 Nge7–+) 11...Nce7 (11...Qd5 12.Ne2–+) 12.d6 (12.Nc4 Nd5 13.f3 Nge7–+) 12...cd6 (12...Qd6 13.Nc4 Qc6 14.Ne2–+) 13.Qc4? (13.Nc4 Ng6 14.Nd6 Bd6 15.Qc6 Bd7 16.Qd6–+) 13...d5 14.Qd4 (14.Qe2 Qc7 15.Kb1 a5–+) 14...a5 (14...Bd7 15.Ne2–+) 15.ba5 (15.b5 Nh6–+) 15...Qc7 (15...Nc6 16.Qb6 Qd7 17.Nc4–+) 16.Bc3 (16.Qc3 Qb7–+) 16...Ra5 (better 16...Nc6 17.Qb6 Ba3 18.Kc2–+) 17.Nb3 (17.Nb1–+) 17...Ra3 18.Nc5 (18.Kb2–+) 18...Ra1 (better 18...Nc6 19.Qd2 Bc5–+) 19.Ba1 Nc6?? (19...Ng6!? 20.Qc3 Bc5 21.Rd5 Ba3 22.Kd2–+) 20.Qa4 (better 20.Qd5!? Nf6 21.Bf6 gf6 22.Ne6 Ba3 23.Kd2 Bb4 24.Kc1 Ba3 25.Kd2=) 20...Bc5-/+ 21.Rd5? (21.Bg7 A) 21...Qg7 22.Qc6 Kf7 23.Qc5 (23.Qc8 Qc3 24.Kb1 Qb3 25.Ka1 Qd1 26.Kb2 Qd2 27.Kb3 Qb4 28.Kc2 Qc4 29.Kb2 Qb5 30.Ka2 Qa4 31.Kb2 Qa3 32.Kc2 Qa2 33.Kc3 Ba3 34.Qf5 Nf6 35.Qd7 Nd7 36.Nf3 Qb2; 23.Qd5 Be6 24.Qc5 Ne7=+) 23...Qg2 24.Qd5 Be6 25.Qe5+–; B) 21...Ba3 22.Kd2 Bb4 23.Ke2 Qg7 24.Qc6 Kf7–+) 21...Bb4 (better 21...Ba3! 22.Kd2 Bb4 23.Ke2 Bd7–+) 22.Bg7-/+ Nge7 (22...Qg7 Theme: Deflection from c6 23.Qc6 A double attack) 23.Re5?? (better 23.Be5 Qb7 24.Rb5-/+) 23...Rg8 24.Qb3 (24.Rb5 Bd7 25.Qc2–+) 24...Ne5 (better 24...Nd4 25.Kb2 Nb3 26.Ne2 Rg7 27.Rb5–+) 25.Kb2 N5c6 (25...Nd3 26.Ka2 Be6 27.Kb1 Qc1 28.Ka2 Rg7 29.g3 Qb2) 26.Nh3 (26.Bc3 Rg2 27.Nh3 Bc5–+) 26...Rg7 27.Rd1 0–1. pat_cash87 – adal15, lichess.org, 2020.

    5.Be2 Be6

    6.d3 Bd6 7.Bh5 g6 8.Be2 Nh6 9.Nd2 0-0 10.c4 Nf7 11.Ngf3 a6 12.0-0 Re8 13.Re1 Na7 14.cd5 Bd5 15.d4 (better 15.e4 Bc6 16.Nc4+/-) 15...Nc6?? (better 15...e4 16.Nh4 f5=+) 16.e4+- Be6 17.d5 Bd7 18.dc6 Bc6 19.Bc4 Kg7 20.Bd5 (20.Nb3 b6+-) 20...Qd7 21.Nc4 Bb5 22.Bf7 (better 22.Rc1!? Nd8+-) 22...Kf7 23.Nd6 cd6 24.Rc1 Re6 25.Qc2 Bc6 26.Qc4 h6?! (26...d5 27.ed5 Bd5 28.Qe2+-) 27.Nd2 Kg7 28.f3 Re7 29.Red1 Ba4 30.Nb3 Bb5 31.Qd5 Rd8 32.Na5 Ba4 33.Rd2 Rf7 34.g3 Bb5 35.f4 (35.Nc4 Bc4 36.Rc4 Rff8+-) 35...Re8? (35...ef4 36.gf4 Qg4 37.Rg2 Qf4+-) 36.fe5 fe5 37.Nc4 (better 37.Qd6!? Qd6 38.Rd6 Kh7+-) 37...Bc4 38.Qc4 Qg4 (38...Qd8+-) 39.Rd6 Ref8 (39...Qf3 40.Rf1 Qf1 41.Qf1 Rf1 42.Kf1+-) 40.Be5 Kh7 41.Rd2 Qf3 42.Bf4 g5 43.Rf1 (better 43.Rc3 Qg4 44.Be5 Qh3+-) 43...Qa3?? (43...Qg4 44.e5 gf4 45.Rd8+-) 44.Rd3 (better 44.Ra2 Qa2 45.Qa2 gf4 46.Rf3+-) 44...Qb2 45.Rd2 Qf6?? (45...Qa3 46.Ra2 Qa2 47.Qa2 gf4+-) 46.e5+- Qg6?? (46...Qb6 47.Kg2 gf4+-) 47.e6 Re7 (47...b5 48.Qe2 Re7 49.Rd7 Rd7 50.ed7 gf4 51.Rf4 Rf4 52.d8Q+-) 48.Bd6 (48.Rd7 Rd7 49.ed7 Rd8+-) 48...Rf1 49.Qf1 Re6 50.Qf8 (50.Bc5!? Qe8 51.Qf3 b6+-) 50...Re1 51.Kf2 Re8 52.Qf3 Qe6 (52...b6+-) 53.Bc5 (better 53.Qb7 Kg6 54.Kg2 g4+-) 53...Qg6 (better 53...Qe1 54.Kg2 Qd2 55.Bf2 Re7 56.Qf5 Kg7-+) 54.Rd7+- Kg8 55.Bd4 (better 55.Qd5!? Qe6 56.Qe6 Re6 57.Rb7 g4+-) 55...Qc2?? (better 55...Rf8 56.Qf8 Kf8 57.Bc5 Ke8 58.Re7 Kd8-+) 56.Kg1 (better 56.Kf1 Qc4 57.Kg2 Qa2 58.Kh3 Qe6 59.Qg4+-) 56...Qc1 (better 56...Re1 57.Qf1 Rf1 58.Kf1 Qf5 59.Kg2 Qd7-+) 57.Kg2+- Qc2 58.Kh3 Qg6 59.Rg7 Qg7 60.Bg7 Kg7 61.Qb7 Kf6 62.Qa6 Re6 63.Qb5 (better 63.Qc4 Ke7+-) 63...Re4 64.Qc4 (better 64.Qb6 Ke5 65.Qc6 g4 66.Kh4+-) 64…g4-+ (64...g4 65.Kg2 Rc4-+) 0-1. azer3136 (2280) - mcgillchessclub (2295), Rated Blitz game, lichess.org, 2016.

    6.Nf3 Bd6 7.c4 (7.0-0 e4 8.Nd4 Nd4 9.Bd4 a5=) 7...dc4=+ 8.0-0 (8.Qc2 b5=+) 8...Nge7 (8...e4 9.Nd4 Nd4 10.Bd4=) 9.Nc3 0-0 10.Rc1 Ng6 (10...a6 11.Ne4=+) 11.Nb5 (11.Ne4 f5 12.Neg5 Bd5 13.Bc4 Bc4 14.Rc4 Qf6=) 11...a6 (11...a5 12.Bc4 Bc4 13.Rc4 ab4 14.ab4=) 12.Nd6= cd6 13.Bc4 Bc4 14.Rc4 d5 15.Rc1 Qc8 16.Qe2 (16.d4 e4 17.Nd2 Qe6=) 16...Qf5 17.d3 Qh5 18.e4 (18.Rc2 Rad8=) 18...Nh4 (18...Nf4 19.Qe3 d4–+) 19.Qe3? (19.Rc2 Nf3 20.Qf3 Qf3 21.gf3 Rfd8=+) 19...Nf3 (better 19...d4 20.Nd4 ed4–+) 20.Qf3=+ Qf3 21.gf3 de4 (21...Rfd8 22.Rc5=+) 22.de4 Rac8 23.Rcd1 (23.Rfd1 Rcd8=) 23...a5 (23...Rfd8 24.Kg2=+) 24.b5= Na7 25.a4 b6 (25...Rc4 26.Rd7 Ra4 27.Rb7=) 26.Rc1 (26.Rd7 Rf7 27.Rfd1 Rd7 28.Rd7 Rc2 29.Be5 Nb5=) 26...Rfd8= 27.Rc8 (27.Kg2 h5=) 27...Rc8 (27...Nc8 28.Kg2=+) 28.Kg2 (28.Rd1 h6=) 28...Rc4 (better 28...Rc2 29.Bc1 Rc4=) 29.Ba3?? (better 29.Rd1 Nc8 30.Rd7=) 29...Ra4–+ 30.Bd6 (30.Be7 Rd4 31.Rb1 Kf7–+) 30...Kf7 (30...Nb5 31.Bb8–+) 31.Rc1? (better 31.Bc7–+) 31...Nb5 32.Bb8 Ra3 (32...Rb4 33.f4 ef4 34.Bf4–+) 33.Rd1 (33.Rb1 Nd4 34.Rb6 Nf3–+) 33...Rc3 (33...Rb3 34.Rd7 Kg6 35.f4 ef4 36.Bf4–+) 34.Rd7 Kg6 35.Rb7 Nd4 (35...Rc6!? 36.f4 ef4 37.Bf4–+) 36.Rb6 Rf3 (36...Nf3 37.Ra6–+) 37.Kf1? (better 37.Be5 Rd3 38.Bd4 Rd4 39.Kf3-/+) 37...Rf4 (37...Rb3 38.Rb3 Nb3 39.Ke2–+) 38.f3 (38.f3 Nf3 39.Ra6–+; 38.Be5 Re4 39.Bd4 Rd4 40.Ra6–+). Markzela – nyarlie, lichess.org, 2020.

    5.Nf3 a6

    6.c4 dc4 7.Bc4 Nge7 8.0-0 Nd5 (8...b5 9.Be2+=) 9.Nc3 Be6 (9...Nb6 10.Be2=) 10.Nd5 (10.Qb3 Nce7+/–) 10...Bd5+= 11.Qb3 Bc4 12.Qc4 Qd6 13.Rad1 0-0-0 14.d4 e4 15.Nd2 f5 16.g3 g6 17.Nb3 Bg7 (17...Qd5 18.Nd2+=) 18.Nc5 Rhe8 19.Rd2?? (19.b5 Nb8+=) 19...b5?? (better is 19...Ne5 20.de5 Qd2 21.Na6 Re7–+ (21...ba6?! 22.Qa6 Kd7 23.e6 Re6 24.Qa4 Ke7 25.Bg7+=)) 20.Qc2 a5 21.ba5 Na5 22.Bc3 Nc4 23.Rdd1 Na3? (better is 23...Qf6+/–) 24.Qb3 Nc4 25.Qb5 Nb6 26.Qa6 Kb8 27.Qb7 1–0. Fournier,Frederic (1840) – viduerna (1760), Active, 2007.

    6.c4 e4 7.Nd4 Nd4 8.Bd4 dc4 9.Bc4 b5? (9...Bf5 10.d3+=) 10.Be2 (10.Qh5 g6 11.Qd5 Qd5 12.Bd5 Rb8+–) 10...Qd5 (better is 10...Bb7!?+=) 11.Nc3+– Qe6 12.0-0 Nh6 (12...Bb7 13.f3 ef3 14.Bf3 Bf3 15.Qf3+/– (15.gf3?! Nh6=)) 13.Qc2 (better is 13.Ne4!? Bb7 14.Nc5 Bc5 15.Bc5+–) 13...Bb7+/– 14.d3 f5 (14...ed3!? 15.Qd3 Be7+=) 15.de4+/– Be4 (15...fe4 16.a4 Bb4 17.ab5 0-0 18.ba6 Ba6 19.Ra6 Ra6 20.Ba6 c5+–) 16.Ne4+– fe4 17.Qc7 Bd6 (17...Rc8 18.Qb7 Nf7+–) 18.Qc6 (worse is 18.Qg7 Nf7+–) 18...Ke7 (18...Kf7 19.Qb7 Be7 20.Bh5 g6 21.Bh8 Rh8 22.Bd1+–) 19.Rac1 (19.Qb7 Qd7 20.Qe4 Kf7 21.Bh5 g6 22.Qd5 Qe6 23.Qb7 Be7 24.Bh8 Rh8+–) 19...Nf7? (19...Rab8 20.Kh1 Nf5 21.Qa6 Nd4 22.Qa7 Kf6 23.Qd4 Qe5+–) 20.Qb7 Qd7 21.Qd7 (better is 21.Qe4 Qe6 22.Qe6 Ke6 23.Bg7 Rhg8+–) 21...Kd7 22.Bg7 Rhc8?? (22...Rhg8 23.Bd4 Ne5+–) 23.Bg4 (23.Bg4 Kd8 24.Bf6 Be7 25.Rc8 Rc8 26.Be7 Ke7 27.Bc8+–) 1–0. Fournier,Frederic (1625) – lucianorossel, Active, 2007.

    5.Nf3 Bg4

    6.Be2 Bd6 7.0-0 a6 8.d3 Nge7 9.Nfd2 Be2 10.Qe2 0-0 11.c4 dc4 12.dc4 b6? (12...Nf5 13.c5 Be7 14.Rd1+=) 13.Nc3 (better is 13.c5!?+–) 13...a5 14.Nde4 (better is 14.b5 Na7 15.Rad1+=) 14...ab4=+ 15.ab4 Bb4 16.Rfd1 Ra1 17.Ba1 Qa8 18.Qa2 Bc3 19.Qa8 Ra8 20.Nc3 Na5 21.Nb5 c6 22.Na3 Nb3 23.Bb2 Rb8 24.Bc3 Nc5 25.Bb4 Nf5 26.g4 Nh4 27.Rd6 Rc8 28.Bc5 bc5 29.h3 Ra8 30.Nb1 Ra1 31.Rd1 e4 32.Nc3 Rd1 33.Nd1 Nf3 34.Kg2 Nd2 35.Nc3 Kf7 36.Na4 Nc4 37.Nc5 Nd2 38.Kg3 g5 39.h4 h6 40.Na4 Ke6 41.Nc3 c5 42.hg5 hg5 43.Kg2 c4 44.Ne2 Nb1 45.Kf1 Kd5 46.Ke1 c3 47.Kd1 Kc4 48.Kc2 Na3 49.Kc1 Kd3 50.Ng3 Nc4 51.Nh5 Na5 52.Nf6 Nb3 53.Kb1 c2 54.Kb2 c1Q 55.Kb3 Qc2 56.Kb4–+ Qc3 0–1. hal1958 – stone99, playchess.de, 2003.

    6.Be2 Nh6 7.0-0 Be7 8.b5 Na5 9.Bc3 c6 10.d3 cb5 11.d4 Nc4 12.de5 0-0 13.ef6 Bf6 14.Bf6 Qf6 (< 14...gf6 15.Nc3+/–) 15.Qd5 Be6 16.Qd4 Qg6 17.a4 a6 18.ab5 ab5 19.Nbd2 Ra1 20.Ra1 Nf5 21.Qc3 Rc8 22.Qb4 Ncd6? (better is 22...Nfd6+/–) 23.e4 +–.

    5.Qh5 g6

    6.Qd1 Nge7 7.c4 Be6 8.c5 Bh6 9.d4 ed4 10.ed4 0-0 11.Be2 g5 12.h4 Nf5 13.hg5 fg5 14.b5 Na5 15.Nd2 Qf6 16.Qa4 b6 17.g4 Nh4 18.f3 (better is 18.Nh3!?=) 18...Ng2+= 19.Kf2 Nf4 20.Kg3? (better is 20.Ke1+=) 20...Ne2–+ 21.Ne2 Nc4 22.Rh6 Qh6 23.Nc4 dc4 24.Ng1 Qh4 (24...Qh4 25.Kg2 Bd5–+) 0–1. onny555 (1810) – valeriuzaharia (2050), gameknot.com, 2012.

    6.Qd1 Nh6 7.Nf3 a6 8.c4 Be6 9.cd5 Bd5 10.Nc3 Bf3 11.Qf3 Qd7 (11...Nf7!?+=) 12.Qf6+/– Bg7 13.Qg5 Rf8 (13...Rd8 14.d3+/–) 14.Be2 Rf5 15.Qh4 g5 (15...Rd8!? 16.Ne4 Rf8+–) 16.Qh5 Kf8 17.0-0 (17.g4 Rf6+–) 17...g4 (better is 17...Qd2!? 18.g4 Rf7+/–) 18.Bg4+– Rh5 (18...Ng4 19.Qg4 Rf7 20.Qd7 Rd7 21.Ne4+–) 19.Bd7 Ne7 20.f4 (20.Ne4 Nd5+–) 20...Kg8 (20...e4+–) 21.Be6 Kh8 22.fe5 (22.g4 Rh4 23.fe5 Be5+–) 22...Re5 23.Bb3 Rg5 (23...Rd8 24.Rad1+–) 24.Rf2 Ng4 25.Rf3 (better is 25.Rf7 Re8 26.Ne4 Rg6 27.Rg7 Rg7+–) 25...Rf8? (25...Ne5 26.Rff1+–) 26.Raf1 (better is 26.Rf8 Bf8 27.Rf1+–) 26...Rf3 27.Rf3 (worse is 27.gf3 Ne3 28.Kf2 Nf1 29.Kf1 Bd4-/+) 27...Rf5 (27...Ne5 28.Rf2+–) 28.Rg3 Rg5 (28...h5+–) 29.h3 Nf5 (29...Nc6 30.hg4 a5 31.b5+–) 30.Rg4 (30.hg4?! Ng3 31.Bd1 Rg6=) 30...Rg4 31.hg4 Ng3 32.Kf2 (32.d4 Bf6+–) 32...Ne4 33.Ne4 Bb2 34.d4 (better is 34.a4!? c6+–) 34...Ba3 35.b5! ab5 36.Nc3 c6 37.d5 Bb2 38.Nd1 Be5 39.Ke2 (39.Kf3 c5+–) 39...c5 40.Kf3 c4 41.Ke4 Bg7 42.d6 (better is 42.Ba2!? Kg8+–) 42...cb3 43.Kf5 Kg8 (43...Bf8 44.Ke6 Bd6 45.Kd6 Kg7+–) 44.d7 b2 45.d8Q Bf8 46.Nb2 1–0. GuestYYLH – mosinski, freechess.org, 2017.

    4.e3 d4

    5.c4 Bf5 6.d3 (6.Qf3!? Ne7 7.ed4 ed4 8.Qb7+=) 6...de3=+ 7.fe3 e4 8.d4 Nh6 9.b5 a6 10.Qc2 (10.c5!?=) 10...ab5=+ 11.cb5 Bd7?? (11...Ng4 12.Qe2=+) 12.a4?? (better 12.Qe4 Be7 13.Qb7+–) 12...Bb4 (12...f5 13.Ba3=+) 13.Nc3 (better 13.Bc3 Bc3 14.Nc3=) 13...c6 (13...f5=+) 14.0-0-0?? (better 14.Qe4!? Qe7 15.Qe7 Ke7 16.Bd3+–) 14...Bc3 (14...f5 15.Kd2-/+) 15.Bc3 (better 15.Qe4 Kf8 16.Bc3 Ra4 17.Kd2=+) 15...cb5 (better 15...Qe7=+) 16.Qe4+– Qe7 (16...Kf8 17.Bb4 Kf7 18.Qd5 (18.Bb5?! Bb5 19.Qb7 Qd7 20.Qb5 Ra4 21.Qc4 Ke8=) 18...Be6 19.Qb7 Nd7 20.Bb5+–) 17.Qe7 (17.Qb7 Qa3 18.Kd2 Qa2 19.Ke1 Qa4 20.Bd3+=) 17...Ke7+= 18.ab5 Ra3?? (better 18...Ng4 19.Nh3 Rc8+= (19...Ne3?? 20.Re1+–)) 19.Bb4+– (19.Bb4 Kd8 20.Ba3+–) 1–0. pat_cash87 – NickolayB, lichess.org, 2020.

    5.e4 Nd7 6.Bc4 c5 (6...Nb6 7.Bb3=) 7.c3 b6 8.d3 (8.Nf3 Bb7 9.Qe2 a6+=) 8...Nh6= 9.cd4 cd4 10.Ne2 Rb8 11.a4 (better 11.0-0+=) 11...Bb4-/+ 12.Nd2 Nc5 13.0-0 Nd3?? (better 13...Nf7-/+) 14.Bd3+– 0-0?? (14...Nf7 15.f4 0-0 16.Bc1+–) 15.Ba3 (better 15.Qb3 Nf7 16.Qb4 Qd6+–) 15...Bc3? (better 15...Ba3 16.Ra3 Kh8+–) 16.Nc3 dc3 17.Bf8?? (17.Nb1 Re8+–) 17...cd2? (17...Qd3!? 18.Bb4 cd2 19.Qd2 Ba6+–) 18.Qd2 (better 18.Bg7!? Kg7 19.Qd2+–) 18...Qf8 19.f3 (19.Rac1 Qe7+–) 19...Qc5 (19...Be6 20.Rfd1+=) 20.Kh1 (20.Qf2 Be6 21.Qc5 bc5 22.Rfc1+–) 20...Bd7? (20...Be6 21.Rac1 Qd4 22.Rfd1 Qa4 23.Ra1+–) 21.Qa2 (21.Rac1!? Qd4 22.Rc4+–) 21...Kh8+– 22.Rfc1 Qd4 (22...Qe7 23.Rc7 Qd6 24.Qc2+–) 23.Bb5 Rd8?? (23...Be8 24.Qc2+–) 24.Bd7 (better 24.Rd1 Qe3 25.Bd7+–) 24...Rd7 (better 24...Qd7!? 25.Qc2 Qe7+–) 25.Rc8 Rd8 26.Rd8 Qd8 27.g4 (better 27.a5!?+–) 27...g6 (27...Qd3 28.Qa3 Qe2 29.Rc1+=) 28.h4 (28.a5 Qd4+–) 28...f5? (better 28...Qd3!? 29.Qa3 Qd4+=) 29.g5+– Nf7?? (better 29...fe4 30.gh6 ef3+–) 30.Qf7+– a6 (30...fe4 31.fe4 Qc8 32.Qf6 Kg8 33.Qe5+–) 31.ef5 gf5 32.Qf5 h6 (32...Kg7 33.Qe5 Kf7 34.Rc1+–) 33.Qe5 Kg8 34.g6 (34.g6 Qh4 35.Kg2 Qg5 36.Qg5 hg5 37.Rb1+–; better 34.Rc1 hg5 35.Qe6 Kh7+–) 1–0. SieStein – Jimmyjim2, lichess.org, 2019.

    5.c4 de3=

    6.fe3 a5 7.b5 c6 8.bc6 Nc6 9.d4 ed4 10.ed4 b6 (10...Bf5 11.c5+=) 11.d5 (11.Bd3 Nh6+=) 11...Ne5 12.Nd2 White fights for the Initiative 12...Ba6 Attacks the backward pawn on c4 (better 12...Qe7!? 13.Be5 Qe5 14.Qe2 Qe2 15.Be2 Nh6+=) 13.Be5+– fe5 (better 13...Qe7 14.Ndf3 fe5 15.Qa4 b5 16.cb5 Bb7+–) 14.Qc2 (better 14.Qh5!? g6 15.Qe5 Qe7 16.Ngf3+–) 14...Nf6 (better 14...Qh4 15.Kd1 Nf6=) 15.0-0-0?? (better 15.Ngf3+=) 15...Ba3–+ 16.Kb1 0-0 17.Bd3 g6 (17...Bd6!? 18.Ngf3 b5 19.Ne4 bc4 20.Nf6 Kh8 21.Bh7 Rb8 22.Ka2–+) 18.Ngf3 Re8 (better 18...Qc7–+) 19.Bg6= Rc8?? (better 19...Re7 20.Bf5 Kg7=) 20.Be8+– Ne8 (20...Qe8 21.Qf5 Nd5 22.Qd3 (22.cd5?? Qb5 23.Nb3 Qb3 24.Ka1 Qb2) 22...Bc4 23.Nc4 (23.Qa3?! Nc3 24.Ka1 Nd1 25.Rd1 Bd5+=) 23...Qb5 24.Ka1+–) 21.Ne5 b5 22.c5 (better 22.Qf5 Qe7 23.Nc6+–) 22...Rc5?? (better 22...Qd5 23.Rhe1 Qc5 (23...Bc5?? 24.Ndf3 Bb4 25.Rd5 Rc2 26.Kc2 Be1 27.Ne1+–) 24.Qb3 Kh8+=) 23.Qc5 (better 23.Qa2 Qd5 24.Nb3 (24.Qa3?! Qe5 25.Rhe1 Qf5 26.Ka1 Qf6 27.Qb2 Qb2 28.Kb2 Nd6+–) 24...Qe4 25.Nd3+–) 23...Bc5–+ 24.Nc6 (24.Ne4 Bb6 25.Rhe1–+) 24...Qd5 25.Na5 (25.Rhe1 Qc6 26.Ne4–+) 25...Qd3 26.Kc1 (26.Kb2 Bd4 27.Ka2 Qc2 28.Ka3 Qa4) 26…Qa3 (26...Qa3 27.Kc2 Qa2 28.Kd3 b4 29.Nac4 Nd6–+; 26...Ba3) 0–1. pat_cash87 – messi1415, lichess.org, 2020.

    6.fe3 h5 7.d4 ed4 8.ed4 Bg4 9.Qc2 Qe7 10.Ne2 Be2 (10...Nh6!?+=) 11.Be2+– Nc6 12.Qg6 (12.b5 Nd8+–) 12...Qf7 13.Qf7 Kf7 14.Nd2 Re8 15.b5 Nd8 16.a4 (16.c5 Ne6 17.0-0-0 h4+–) 16...b6 (16...Nh6 17.c5+=) 17.Nb3 (17.a5 Bb4+–) 17...Bb4 18.Kf2 Ne7 19.c5 bc5 20.dc5 Nd5?? (20...Ne6 21.Bc4 Ng6 22.a5+–) 21.g3 (better 21.Bc4+–) 21...Ne6 (better 21...Ne3+=) 22.Bd4?? (better 22.Bc4 Bc3 23.Rhb1 Bb2 24.Rb2+–) 22...Nd4-/+ 23.Nd4 (better 23.Bc4!? Kg6 24.Bd5-/+) 23...Bc5–+ 24.Bh5?? (better 24.Rad1 Ne3 25.Kf3–+) 24...Rh5 25.Rhe1 (25.Kg2 Bd4 26.Rab1 Re2 27.Kf3 Rf2 28.Ke4 Rd2 29.Rhf1 Re5 30.Kf3 f5 31.Rb3 Re1 32.g4 Rf1 33.Kg3 Rg1 34.Kh4 Rg4 35.Kh5 Nf4) 25…Bd4 (25...Bd4 26.Kg2 Ba1 27.Ra1 Re2 28.Kf1 Rhh2 29.Ra3 Rb2 30.Kg1 Rhg2 31.Kh1 Rge2 32.Ra1 Rh2 33.Kg1 Rbg2 34.Kf1 Ne3 35.Ke1 Re2) 0–1. pat_cash87 – m7509m, lichess.org, 2020.

    5.ed4+/– ed4

    6.Bb5 c6+= 7.Qe2 Ne7 8.Bc4 (8.Bd3 a5+=) 8...b5 9.Bb5 (better is 9.Bd3+=) 9...cb5-/+ 10.Qb5 Nec6 11.d3 (11.Ne2 Qe7-/+) 11...a6 (11...Qe7 12.Ne2–+) 12.Qh5 g6 13.Qf3 (13.Qh4 Be7–+) 13...Bb7–+ 14.Nh3 Be7 (14...Qe7 15.Kd1 Ne5 16.Qg3–+) 15.0-0-/+ Qc7 16.Qe2 0-0 (16...Kf7 17.Re1 Bd6 18.f4–+) 17.Nd2 (17.c4-/+) 17...Ne5 (better is 17...Re8!? 18.Qe6 Kg7–+) 18.Bd4+= Qc6 (18...a5 19.c3+=) 19.f3 (better is 19.f4 Ned7 20.f5=) 19...Nf7?? (19...a5 20.Nc4 ab4 21.ab4 Ra1 22.Ra1+=) 20.Nb3 (better is 20.Qe7 Nd7 21.Ne4+–) 20...Bd8 (20...Re8 21.Rae1=) 21.Rfe1 Bc8 (21...Bc7 22.c4+=) 22.Nf2 Be6?? (better is 22...Bc7+=) 23.Qe6+– Qc2 (23...f5+–) 24.Nc5 (better is 24.Rec1 Qc1 25.Rc1+–) 24...Re8 (24...Ra7 25.Rac1 Qc1 26.Rc1 Re7 27.Qf6 Re1 28.Re1 Bf6 29.Bf6 Rc8+–) 25.Qe8 Kg7 26.Rec1 (26.Ne6 Kh6 27.Be3 g5 28.Ng4 Kg6 29.Qg8 Kh5 30.Qf7 Kh4 31.Qh7) 26...Qd2 27.Qe3 (27.Ne6 Kh6 28.g4 Qe1 29.Re1 Nd7 30.Qf7 Bb6 31.Qg7) 27...Qe3+– 28.Be3 Nc6 (28...f5+–) 29.Ne6 Kh8 30.Rc6 g5 31.Nd8 (31.Rac1 h6+–) 31...Nd8 32.Rf6 Kg7 33.Bg5 (33.Bd4 Kg8 34.Re1 Nf7+–) 33...Nf7 34.Bh4 a5 35.b5 a4 36.Ne4 (36.Ra6 Rb8+–) 36...Re8 37.b6 Rb8 38.d4 (38.Rc1 Kg8 39.Bg3 Rd8+–) 38...h6 39.Nc5 (39.Nc5 Ng5 40.Rc6+–) 1–0. jaddwarrior (1925) – themekon (1645), ChessWorld.net, 2014.

    6.c4 dc3 7.Bc3 g5 (7...Bd6 8.Bc4=) 8.d4 (8.Qh5 Kd7+–) 8...h5 (8...Be6 9.Bd3=) 9.Qc2 (9.Bd3 Ne7+=) 9...Nc6 (9...Ne7=) 10.d5 (10.Qg6 Kd7 11.Bc4+=) 10...Ne5?? (better 10...Qd5!? 11.Qg6 Ke7=+) 11.Bb5 (better 11.Be5!? Qe7 12.Qc7+–) 11...c6 12.dc6 bc6 13.Bc6?? (better 13.Qe4 cb5 14.Qa8 Nd3 15.Kf1+–) 13...Nc6–+ 14.Qg6 Ke7 15.Qe4 (15.b5 Qd5 16.bc6 Qg2 17.Nd2 Qh1 18.Ndf3=+) 15...Ne5?? (better 15...Be6–+) 16.Be5 (16.Qa8 Nd3 17.Kf1 Qd7 18.Qe4 Kd8+–) 16...fe5? (better 16...Be6!? 17.Bd4 a5+–) 17.Qa8+– Nf6? (17...Qc7 18.Nd2 Qb7 19.Qb7 Bb7+–) 18.Qa7 Bd7 (18...Ke6 19.Nf3 g4 20.Ng5 Kf5 21.Nf7+–) 19.Ne2 (19.Nf3 Bg7+–) 19...Ne4 (19...Ke8 20.Nbc3+–) 20.0-0 (20.Qe3 Nf6 21.Qe5 Kf7+–) 20...Ke8 (20...g4 21.Nbc3 Nc3 22.Nc3+–) 21.Rd1 (21.Qe3!? Bc6 22.Nec3 Nf6 23.Qe5 Kf7+–) 21...Rh7 (21...Nd6 22.Nbc3 Rh6 23.a4+–) 22.Nbc3 Qe7 (22...Nf6+–) 23.Ne4 Bf5 24.Nd6 Qd6 25.Rd6 (better 25.Qa8 Kf7 26.Rd6 Bd6 27.Qd5 Ke7 28.Ng3+–) 25...Ra7 26.Rad1 (26.Rd5!? Bg7+–) 26...Ra3?? (better 26...Bd6 27.Rd6 Ra3+–) 27.Rd8 (27.R6d5!? Kf7 28.Re5 Bc2+–) 27...Kf7 28.R1d7?? (better 28.b5+–) 28...Bd7=+ 29.Rd7 Be7 (29...Ke6 30.Rd1=+) 30.g3 (30.g4 Ke6 31.Rc7 hg4=+ (worse 31...Bb4 32.gh5 Bd6 33.Rg7+–)) 30...Ra1 (better 30...Rb3!?=+) 31.Kg2+= Ke8 (31...Re1!? 32.Nc3 Ke6+–) 32.Rd5+– e4 (32...Bf6 33.Nc3+–) 33.Nd4 (33.Re5!? Kd7 34.Re4 Ra2+–) 33...Ra2 (33...Rd1 34.b5 Bf6+–) 34.Nf5 (better 34.Re5 Kd7 35.b5+–) 34...g4?? (34...Bb4 35.Rb5 Bf8 36.h4+=) 35.Ng7 (better 35.Re5 Ra7 36.Re4+– (worse 36.Re7 Re7 37.Ne7 Ke7+–; 36.Ne7?! Re7 37.Re7 Ke7+–)) 35...Kf7= 36.Nh5 e3 37.Rd1?? (better 37.Nf4!? Rf2 38.Kg1=) 37...Rf2 (37...e2 38.Rb1 Bb4 39.Rb4 e1Q 40.Rf4 Kg6–+) 38.Kg1-/+ e2?? (better 38...Bb4 39.Rf1 Rf3-/+) 39.Re1+= Bb4?? (better 39...Rf5 40.Nf4 Re5+=) 40.Nf4 (better 40.Kf2 Be1 41.Ke1+–) 40...Be1–+ 41.Nd5 (41.Ne2 Re2 42.Kf1–+) 41...Bd2 (41...Rf1 42.Kg2 Bf2 43.h3 Rg1 44.Kh2 e1N 45.hg4 Nf3 46.Kh3 Rg3) 42.Kf2 e1Q 43.Kg2 0–1. pat_cash87 – SD100K, lichess.org, 2020.

    6.c4 Nc6 7.Qh5 g6 8.Qh4 Qe7 9.Kd1=+.

    6.Qe2 Ne7 7.Nf3 Bg4 8.Qb5 Nbc6 9.Nd4 Qd7 +/–.

    6.Be2 a5+= 7.b5 c6 (7...Bc5 8.Bd3 Qd6 9.Qh5 Kd8 10.Qf7 (worse 10.Bh7 Ne7-/+) 10...Qe7 11.Qe7 Ne7 12.Nf3=) 8.a4 (8.Nf3 Bc5+=) 8...cb5 (8...c5 9.Nf3+=) 9.ab5 (9.Bb5 Nc6+–) 9...a4 10.Nf3 Attacking the isolated pawn on d4 10...Bc5 11.0-0 Ne7 12.c4?? (12.Bc4 Ra7+–) 12...dc3?? (better 12...d3–+) 13.Nc3+– b6 The passed pawn on d2 will become decisive later (13...a3 14.Qb3 Ra7 15.Bc1+–) 14.Ne4 Bb4 (better 14...Be6 15.Nc5 bc5 16.Ra4 Nd7+–) 15.d4 (15.Ra4!? Ra4 16.Qa4 Bd6+–) 15...0-0 (15...a3 16.Qb3 Bb7 17.Qb4 Be4 18.Ba3+–) 16.Nfd2 (16.Bc4 Nd5+–) 16...Nd5 17.Nc4 (17.Bc4 f5 18.Nc3 Be6+–) 17...h6? (17...f5 18.Ng3=) 18.Ba3 (18.Ra4 Ra4 19.Qa4 f5+–) 18...Bf5 (18...Qe7! 19.Bf3 Be6+=) 19.Bb4+– Nb4 20.Ncd6 (better 20.Ned6 Bg6 21.Qd2+– (21.Ra4?! Bc2 22.Ra8 Bd1 23.Rd1 Qe7+–)) 20...Be4+– 21.Bc4?? (better 21.Ne4 Kh8 22.Bf3+–) 21...Bd5–+ 22.Bd5 Nd5 23.Nf5 Qc7 (23...Qd7 24.Qd3–+) 24.Rc1? (24.Ra4 Ra4 25.Qa4 Qc8–+) 24...Qf4 (better 24...Qd7 25.Qg4 Kh7 26.Qe4–+) 25.Ne3 (25.Qh5 Rd8 26.Rc8 Rc8 27.Nh6 gh6 28.Qd5 Kh8 29.Qa8 Qd4 30.Qf3–+) 25...Ne3 26.fe3 Qe3 27.Kh1 Nd7 28.Rc7 Rad8 (28...Rfd8 29.Qg4 Qd3 30.Kg1–+) 29.Re1 (29.Qa4 Rfe8 30.Qc4 Kh7–+) 29...Qa3 30.Re7 (30.Ra7 Rfe8 31.Rf1–+) 30...Qe7 31.d5 (31.Rc1 Nc5!–+) 31...Rc8 (better 31...Rfe8!? 32.Qf1 Qe2 33.Rc1–+) 32.d6 Qe6 33.h3 Rc7 34.dc7 Rc8 35.Qc2 Nc5 (better 35...Qe1 36.Kh2–+) 36.Qc3 Rc7 37.Qf3 Qe1 38.Kh2 Re7 (38...Ne4 39.Qd3 Rc1 40.Qd8 Kh7 41.Qh8 Kh8 42.g3 Qg3) 39.Qa8 Kh7 40.Qf3 Qe5 41.g3 Ne4 (41...Qb2 42.Qg2 Re2 43.h4 Rg2 44.Kh3 Qe2 45.h5 Rh2) 42.h4–+ g5 (42...Qb2 43.Kh3 a3 44.Qf5 g6 45.Qg6 Kg6 46.h5 Kg5 47.g4 Nc3 48.Kg3 Re3) 43.Kh3 g4! 44.Qg4 A deflection (44.Kg4 Decoy theme: g4 44...Rg7) 44...Rg7 (44...Nf2 45.Kh2 Ng4 46.Kg2 Qd5 47.Kh3 Nf2 48.Kh2 Qh1) 45.Qf4 (45.Qf5 Qf5 46.g4 Qg4 47.Kh2 Qh4) 45...Rg3 46.Kh2 Qf4 47.Kh1 Qf2 (47...Qf2 48.h5 Rg1; 47...Qh4) 0–1. Markzela (1715) – sandip49 (1680), lichess.org, 2020.

    6.Nf3 a5 7.Qe2 Ne7 8.Nd4 ab4 9.ab4 Ra1 +/–.

    6.Nf3 Nc6 7.b5 Na5 8.Bd4 Bf5 9.d3 Bg4 (better is 9...c6+/–) 10.Be2?? (better is 10.Bc3 Qe7 11.Qe2+/–) 10...Bf3-/+ 11.Bf3? (better is 11.Bc3!? Bg2 12.Rg1+=) 11...Qd4–+ 12.Nd2 Bc5 13.0-0 Nh6 (13...0-0-0 14.Ne4 Bb6 15.Qd2–+) 14.Ne4 0-0 (better is 14...Bb6–+) 15.c3+= Qe5 16.d4 Bd4 17.cd4 Qb5 18.Rb1 Qc4 19.Nc5 Rad8 The isolani on d4 becomes a target 20.Nb7 (worse is 20.Bb7 Rd4 (worse is 20...Qd4 21.Qd4 Rd4 22.Ne6+/–) 21.Qh5 Nb7+=) 20...Nb7 21.Bb7 (21.Rb7 c5+=) 21...Rd4 22.Qf3 Nf5?? (22...Rfd8 23.Rbc1 Qb5 24.Rc7=) 23.Rbd1?? (better is 23.Qf5 Qa4 24.Rbc1 Qa3 25.Be4+–) 23...Rd1 24.Rd1 Qc2?? (better is 24...Ne7=) 25.Bd5 Kh8 26.Be4 Nd6?? (26...Nh4 27.Bc2 Nf3 28.gf3 g6+–) 27.Bc2 Nc4 28.Qc3 (28.Qh5 f5 29.Qf7 Rb8 30.Rd7 Rg8 31.Qf5 g6 32.Qf6 Rg7 33.Qg7) 28...Ne5+– 29.Bb3 (better is 29.Qc7 g6 30.f4 Nf7+–) 29...Ng4 30.Qc7 (30.Qc5 Rb8 31.Qe7 h5 32.Rd7 Rg8 33.Bg8 Kg8 34.Qg7) 30...Ne5 31.Qa7 (31.Rd8 h5 32.Rf8 Kh7 33.Rg8 Nd7 34.Qd7 Kg6 35.Bc2 Kg5 36.Rg7 Kf4 37.Qd6) 31...Nc6 32.Qc5 Na5 1–0. Fournier,Frederic – MissSunshine, Active, 2011.

    6.Nf3 Nc6 7.b5 Ne5 (7...Qe7 8.Be2 d3 9.cd3+/–) 8.Nd4 (8.Ne5!? Qe7 9.Bd4 Bf5+–) 8...c5 9.bc6! Nc6 (9...bc6 10.Nf3 Combination; 9...Nc6 10.Bb5 Pinning (10.Bb5 Decoy)) 10.Nc6 bc6 11.Be2 Rb8 12.Qc1 Bd6 13.0-0 Be5 14.Be5 fe5 15.Nc3 Be6 16.Bf3 Bc4? (better is 16...Ne7!?+/–) 17.d3 Bd5 18.Bd5 cd5 19.Re1 Qd6 20.Rb1 (better is 20.Qg5 Nf6 21.Re5 Kf7 22.Nd5+–) 20...Rb1 21.Qb1 d4? (better is 21...Ne7!? 22.Nb5 Qf6+/–) 22.Qb5 (better is 22.Nb5 Qb8 23.Qb3+–) 22...Ke7?? (22...Kf7 23.Ne4 Qe7 24.f4+–) 23.Nb1 (better is 23.Re5 Qe5 24.Qe5 Kf7 25.Ne4+–) 23...a6 24.Re5 (better is 24.Qe5!? Qe5 25.Re5 Kf7+–) 24...Kf6 25.Rf5 Ke6 26.Qc5 Nh6 (26...Qc5!? 27.Rc5 Ne7+–) 27.Qd6 Kd6 28.Ra5 Re8 29.Ra6 Kc5 30.Kf1 Ng4 31.Nd2 Nh2 32.Kg1 Ng4 33.Ne4 Kb5 34.Rd6 Rc8 35.a4! Ka4 (35...Ka5 36.Rd5 Kb6 37.Rb5 Ka7+–) 36.Rd4 Ka3 37.c4 (better is 37.Nd6 Rc2 38.Rg4 g6+–) 37...Nf6 38.Nf6 gf6 39.Rd5 Kb3 40.c5 Kc3 41.d4 h5 42.Rd6 f5 43.c6 f4 44.d5 h4 (44...Kd4 45.Rd7+–) 45.Rd7 Kc4 46.c7 h3 (46...Kb5 47.d6 Kc6 48.Rd8 Rc7 49.dc7 Kc7 50.Rf8+–) 47.d6 hg2 48.Kg2 Kd4 (48...Kc5 49.Rd8 Kc6 50.Rc8 Kd6 51.Kf3+–) 49.Kf3 Ke5 50.Rd8 Rd8 51.cd8Q 1–0. Fournier,Frederic (1835) – petrela, Active, 2007.

    6.Nf3 Nc6 7.b5 Qe7 8.Be2 d3 9.cd3 +/–.

    6.Nf3 Nc6 7.Qe2 Qe7 8.Nd4 Nd4 9.Bd4 Nh6 +/–.

    6.Nf3 d3 7.Bd3+– g6 8.0-0 b5? (better is 8...Kf7+–) 9.Bb5 Bd7 10.Re1 Ne7 (10...Be7 11.Bc4 Kf8 12.Ne5+–) 11.Bd7 (11.Bf6!? Rg8 12.Bc4 Rg7+–) 11...Qd7 (11...Nd7 12.Ng5! Bh6 13.Ne6+–) 12.Bf6 Rg8 13.Nc3 (better is 13.Nd4 Qd6 14.Qf3+–) 13...Kf7 (13...Nbc6+–) 14.Be7 (14.Ne5 Kf6 15.Nd7 Nd7 16.Qf3 Nf5 17.Qa8 Kg7+–) 14...Be7 (14...Kg7 15.Bf6! Kf6+–) 15.Qe2 (better is 15.Ne5 Kg7 16.Nd7 Bd6+–) 15...Re8 (15...Bf6 16.d4! Nc6 17.Ne4+–) 16.Qc4 (better is 16.Ne5 Kg7 17.Nd7 Nd7 18.Qe7 Re7 19.Re7 Kh6 20.Rd7+–) 16...Kf8 (16...Kg7 17.Nd5 Bd8 18.Qd4 Kg8 19.Ne5 Re5 20.Re5+–) 17.Nd5 (17.Nd4 Kg7 18.Ne6 Kh8+–) 17...Nc6 (17...Bd8 18.Qc5 Kg7 19.Qd4 Kg8 20.Re8 Qe8 21.Re1+–) 18.Ne7 (better is 18.Nd4 Nd4 19.Qd4 Kf7 20.Re7 Re7 21.Qf6 Ke8 22.Qh8 Kf7 23.Qh7 Ke6 24.Ne7 Qd2+–) 18...Ne7 19.d4 (19.Ng5 Nd5 20.Nh7 Kg7+–) 19...c6 20.Qd3 Nf5 21.c3 Rad8 (21...a5 22.Re8 Qe8 23.Re1+–) 22.Ne5 Qe7 (22...Qc8 23.Qc4 Re7 24.Nc6+– (worse is 24.Qc6 Rc7 25.Qf6 Kg8+–)) 23.Ng6! hg6 24.Re7 Re7 (24...Ne7 25.Qa6 Rd7 26.Re1+–) 25.g4 (25.Qf3!? Kg7 26.Qc6 Rd6+–) 25...Nh4 26.h3 Rf7 27.Qg3 (better is 27.Qc4!? Rd6+–) 27...Nf3 28.Kg2 Re8 (28...g5 29.Rd1+–) 29.Qf3 (better is 29.Qd6 Kg7 30.Qc6 Re2+–) 29...Rf3 30.Kf3 g5 31.Ra2 (better is 31.h4 gh4 32.Rh1 Kg7 33.Rh4 Re1+–) 31...c5 (31...Re1 32.Re2 Rh1 33.Re3 Rh3 34.Ke4+–) 32.dc5 (32.Re2 Rb8 33.Re5 cd4 34.cd4 Rc8+–) 32...Re1 33.c6 (33.Rd2!? Rh1 34.Kg2 Rc1+–) 33...Rc1 34.b5 Rc3 35.Ke4 Rh3 (35...Ke7+–) 36.Rc2 Rh7 (36...Ke7 37.c7 Rh8 38.c8Q Rc8 39.Rc8+–) 37.c7 Re7 38.Kf5 Rf7 39.Kg5 Rg7 40.Kf4 Rf7 41.Kg3 1–0. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com, 2013.

    6.Nf3 Qe7 7.Qe2 Nc6 8.Nd4 Nd4 9.Bd4 Nh6 +/–.

    6.Nf3 Bg4 7.Be2 Bf3 8.Bf3 (8.gf3?! Ne7+=) 8...c6 9.0-0 Bd6 10.Re1 Ne7 11.g3 Be5 12.c3 dc3 13.dc3 Qd1 14.Rd1 0-0 15.Nd2 Nd7 16.Nc4 Nb6 (16...Rfd8!?+=) 17.Nb6+/– (17.Ne5?! fe5 18.Be4 Rad8=) 17...ab6 18.Rd2 Rad8 19.Rad1 Ng6?? (better is 19...Rd2 20.Rd2 Rc8+/–) 20.Rd8+– 1–0. Fournier,Frederic (1610) – edmundo_flore@chesscube.com, Active chesscube.com, 2011.

    6.Qh5 g6 7.Qe2 Be7 8.Nf3 Bg4 (8...a6!? 9.Nd4 Qd6+/– (9...Nh6+/–); 8...c5 9.bc5 Nc6+/–) 9.Qb5+– Bd7 (9...Nd7+–) 10.Qb7 Bc6 (10...Nc6 11.Nd4 Nd4 12.Bd4 a5+–) 11.Bb5 Nd7 (11...Bb5 12.Qa8 Bc6 13.Qa7 Bf3 14.gf3 Nc6+–) 12.Qc6 Nh6 (12...d3 13.Qd5 Bd6 14.Qe6 Ne7 15.Bd3+–) 13.Nd4 0-0 (13...Rb8 14.Ne6 Rb5 15.Nc7 Qc7 16.Qc7+– (16.Qb5?! Qc2 17.0-0 Qb2+–)) 14.Ne6 Ne5 (14...Qc8 15.Qd7 Rf7 16.Qc8 Rc8 17.Bc4+–) 15.Be5 Qc8 16.Nf8 (16.Nf8 Qf8 17.Bc7+–) 1–0. Woelfelschneider,Peter – Krahl, Tiger SC, 1999.

    5.Nf3 de3=

    6.fe3 Bg4 7.Be2 Bf3 8.Bf3 c6 9.0-0 Nh6 10.Nc3 Nf7 11.d4 ed4 12.ed4 Ng5 13.Qe2 Qe7 14.Bh5 g6 15.Qf2 f5? (better is 15...Qd6 16.Be2 Bg7+/–) 16.Rae1+– Ne6 (16...Ne4 17.Ne4 fe4+–) 17.d5 cd5 (17...Kd7 18.de6 Kc8+–) 18.Nd5 Qd7 (18...Qf7 19.Re6! Kd7 20.Nf6 Kc8 (20...Ke6?? 21.Re1 Kd6 22.Qc5) 21.Re8 Qe8 22.Ne8 Rg8+–) 19.Nf6 Kf7 20.Nd7 Nd7 21.Qf5 1–0. b4_player – story, casual, 2013.

    6.fe3 Bg4 7.Be2 Bf3 (7...Qd6!?=) 8.Bf3+/– c6 9.0-0 Nh6 10.d4 Nd7 11.de5 (11.c4!?+/–) 11...Ne5+= 12.Be2 Qd1 13.Rd1 Nf5 14.e4 (14.Kf2!?=) 14...Ne3+= 15.Rd2 Rd8 (15...N3c4!? 16.Be5 Nd2 17.Bh5 Ke7 18.Bf6 gf6 19.Nd2 a5-/+) 16.Rd8 Kd8 17.Be5 fe5 18.Bd3 Be7 19.Nd2 Rf8 20.Nf3 Bd6 21.Re1 (21.h3 Bc7 22.c4 b5+/–) 21...Ng4= 22.h3 Nh6 (better is 22...Nf6=) 23.g4?? (23.Ng5 Ke7+/–) 23...Ng8?? (better is 23...Rf3 24.Kg2 Rf4–+) 24.Ng5+/– h6? (better is 24...Ke7!? 25.Nh7 Rf4+/–) 25.Ne6+– Ke7 26.Nf8 Kf8 27.Rf1 Ke7 28.c4 Nf6 29.Kg2 Nd7 30.c5 Bc7 31.Bc4 Nf6 32.Bd3 a5?? (32...Nd7 33.h4 b6+–) 33.Kg3 ab4 34.ab4 g6 35.Ra1 b5 36.Ra7 Kd7 37.Kf3 h5 38.Bc2 h4 (38...Nh7 39.gh5 gh5 40.Kg3+–) 39.Bb3 (39.g5 Nh5+–) 39...g5? (39...Nh7+–) 40.Be6! Ke6 (40...Kd8 41.Ra8 Ke7 42.Ra6+–) 41.Rc7 Nd7 42.Rc6 Ke7 43.Rc7 Kd8 44.Rb7 Kc8 45.Rb5 Kc7 46.Ra5 Kc6 (46...Kb7 47.Ra3 Nf8 48.Kg2+–) 47.Ra7 Nb8 48.Ra8 Nd7 49.Rd8 Nf6 50.Rd6 Kb5 51.Rf6 Kb4 52.Rf5 (52.c6 Kb3 53.c7 Kc4 54.c8Q Kb5 55.Qb7 Kc5 56.Rc6 Kd4 57.Qd7) 52...Kc5 53.Re5 Kd6 54.Rg5 Ke6 55.Rf5 Ke7 56.g5 Ke8 57.g6 1–0. Fournier,Frederic – hugova, Active, 2004.

    4.e3 Bd6

    5.Bb5 c6 6.Be2 Bf5+=.

    5.d4 c6 6.de5+= fe5 7.Be5 Nf6 (7...Be5 8.Qh5 Double attack (8.Qh5 Decoy)) 8.Nf3 0-0 9.Nbd2 Bg4 10.Be2 a5 11.Bd6 Qd6 12.Nc4 Qe7 (12...dc4 13.Qd4 Double attack (13.Qd6 Pinning; 13.Qd6 Deflection; 13.Qd4 Decoy; 13.Qd6 Clearance)) 13.Na5 (13.Nb6 Ra7 14.Qd4 Qe4+/–) 13...b6+= 14.Nb3 Ra3 (14...Bf3 15.Bf3 Ra3+=) 15.0-0 (15.Ra3 Qb4 16.Nfd2 Be2 17.Qa1+/– (17.Qe2?! Qa3 18.0-0 Nbd7=)) 15...Ra1= 16.Qa1 Qb4 17.h3 Bh5 18.Nbd4 Qe7 19.c4 c5 20.Nf5 Qd7 21.g4 Ng4? (better is 21...Bg6 22.Ne5 Qe8=) 22.hg4+– Bg4 23.Ne5 Qf5 24.Bg4 (24.Ng4 h5 25.Qd1 hg4 26.Bg4 Qg6 27.Qd5 Kh8+/–) 24...Qe4 25.Be6 Kh8 26.Bd5 Qh4 27.Bg2 1–0. Bulcourf,Carlos (2270) – Rey Besada,Fernando (2170), Villa Ballester de Invierno op 4th, 2004.

    5.d4 Nc6!? =.

    5.d4 Nd7 6.c4 a5 7.de5 Be5 8.Be5 Ne5 9.cd5 ab4 10.f4 =.

    5.d4 Qe7 6.de5 Be5 7.Be5 (7.Qd5? Bb2 8.Ra2 Be5–+) 7...Qe5 8.c3 Bf5 (8...Ne7 9.Nf3 Bg4 10.Qa4 Bd7 11.Bb5=) 9.Nf3+= Qe7 (9...Bg4 10.Qa4 Bd7 11.Qc2+=) 10.Qd5+/– Bb1 (10...Be4!? 11.Qh5 Bg6+/–) 11.Rb1+– Nc6 (11...c6 12.Qb3 Nd7+–) 12.Bb5 Qd6 13.Bc6 bc6 14.Qh5 g6 15.Qa5 Ne7 (15...Qd3 16.Rc1+–) 16.Rd1 Qe6 17.0-0 Nd5 (17...0-0 18.Nd4 Qc4 19.Qc7+–) 18.Nd4 Qd6 (18...Qe4 19.c4 Nb6 20.Qa6+–) 19.c4 Nc3 20.Nb5! Qe5 (20...Nb5 21.Rd6) 21.Nc3 Qc3 22.Qc5 Rd8 23.Rd8 Kd8 24.Rd1 Kc8 25.Qa7 Rd8 26.Qa8 1–0. lucya (2155) – acidburn (1730), GameColony.com, 2002.

    5.Be2 c6 6.d4 a5 7.de5 fe5 8.Bh5 g6-/+ 9.Be2 ab4 10.ab4 Ra1 11.Ba1 Bb4 12.c3 Bd6 13.Nf3 Nf6 14.h3 0-0 15.Qb3 Kg7 16.0-0 Nbd7 17.Nbd2 Nc5 18.Qb1 b5 19.c4 dc4 20.Rd1 Qe7 21.Nh2 Bf5 22.Qb2 e4 23.Ng4? Nd3?? 24.Bd3= ed3 25.Nf6 Rf6 26.e4 Be4?? 27.Ne4+– Be5 (27...Be5 28.Qe5 Qe5 29.Be5 Kf7 30.Bf6 Ke6+–; 27...Bb4 28.Qf6 Qf6 29.Nf6 Ba3+–). mic (2200) – wstanevans (2230), net–chess.com, 2007.

    5.Be2 Be6 6.Bh5 g6 7.Be2 Ne7 8.d3 0-0 9.Nd2 Nd7 10.Ngf3 a5 11.b5 c5 12.0-0 b6 13.Re1 Qc7 14.Nf1 Rae8 15.c4 d4 (better 15...e4!? 16.de4 de4=+ (worse 16...dc4 17.N1d2+/-)) 16.e4 h6 17.Bc1 Kh7 18.Qd2 Ng8 19.Ng3 f5 20.ef5 gf5 21.Nh4 Qd8 22.Nf3 Ndf6 23.Nh4 Ng4?? (better 23...f4 24.Ngf5 Bc7=+) 24.Nhf5!+/- Bf5 (24...Bf5 25.Nf5 Combination; 24...Rf5 25.Bg4 Remove defender) 25.Nf5 Nf2 26.Nd6 (better 26.Bf3!? Rf5 27.Qf2+/- (worse 27.Kf2 Qh4 28.Kg1 e4=+)) 26...Qd6+= 27.Bf3 Nh3 28.Kh1 Ng5 29.Bc6 Re7 30.h4 Ne6 (30...e4 31.Qe2 (31.hg5 Qg3 32.Be4 Re4 33.de4 Rf2 34.Qf2 Qf2-+) 31...e3 32.hg5-/+) 31.Be4 Kh8 32.Qe2 Nf4 33.Qg4? (better 33.Bf4 ef4 34.Qg4=) 33...Rg7-+ 34.Qd1 Ng2 35.Bg2 Qf6?? (better 35...Rf2 36.Bg5 hg5-+) 36.Qh5+= Rg2 37.Bh6 (37.Kg2?? Qf2 38.Kh3 Rf3 39.Qf3 Qf3 40.Kh2 Qf2 41.Kh3 Qe1-+) 37...Nh6 38.Rf1?? (38.Kg2 Rg8 39.Kh3+=) 38...Qf1 (better 38...Ra2! 39.Rf6 Ra1 40.Kg2 Rf6 41.Qe5 Kg7-+) 39.Rf1+- Rf1 40.Kg2 Rf6 41.Qg5 Kh7 (41...Re6 42.Kf2 a4+-) 42.Qf6 (42.Qf6 Ng8 43.Qb6 Kg7 44.Qc7 Kh8 45.Qe5 Kh7 46.b6 Kh6 47.Qh8 Kg6 48.Qg8 Kf5 49.Qf7 Ke5 50.b7 Kd6 51.b8Q Kc6 52.Qd5) 1-0. azer3136 (2295) - Kartal1 (2230), Rated Blitz game, lichess.org, 2016.

    5.Be2 Nh6 6.Bh5 g6 7.Be2 0-0 8.d3 a5 9.b5 a4 10.Nf3 c6 11.c4 Be6 12.0-0 Qe8 13.Nc3 e4?? (better 13...Nd7+=) 14.Qd2?? (14.de4 de4 15.Ne4 Be7+-) 14...Bc8?? (14...ef3 15.Bf3 dc4 16.dc4-+) 15.b6?? (better 15.de4 de4 16.Qd6+-) 15...Nd7?? (better 15...ef3 16.Bf3 dc4-+) 16.Nd1?? (better 16.de4 de4 17.Qd6 ef3 18.gf3+/-) 16...ed3 (better 16...ef3 17.Bf3 Nb6 18.cd5 Nd5-+) 17.Bc3?? (17.Bd3 Nc5 18.Bc2=) 17...Bg3 (17...de2 18.Qe2 Nb6 19.cd5 Nd5 20.e4-+) 18.Ba5?? (18.Bd3 Bd6 19.cd5 cd5+=) 18...Rb8 (better 18...de2 19.Qe2 Bh2 20.Nh2 Ra5-+) 19.cd5?? (better 19.Bd3 Be5 20.Ne5 Qe5 21.Bc3+=) 19...Qe3?? (better 19...de2 20.Qe2 Bd6 21.Nc3-+) 20.Qc2 (better 20.Ne3 de2 21.Qe2+-) 20...Qd2 (better 20...Qe2 21.Qa4 Be5-+) 21.Qc5 (21.Qc5 Nc5 22.Bd2 (22.Nd2?? de2 23.hg3 ef1Q 24.Kf1 Re8-+) 22...de2 23.Re1 ed1B 24.Red1 Bf2 25.Kf2 Ng4 26.Kg1-+; 21.Nd2?! dc2 22.fg3 cd1Q 23.Rfd1 cd5+/-; 21.Qd2 de2 22.Re1 ed1Q 23.Rad1 Bf2 24.Kf2 Ng4 25.Kg3 Nde5 26.Ne5 Ne5+-) 1-0. azer3136 (2255) - weryui (2265), Rated Blitz game, lichess.org, 2016.

    5.f4 ef4 6.ef4 (6.Qh5 g6 7.Qd5 fe3=+) 6...Bf4 (6...Ne7 7.Qh5 g6 8.Qf3=+) 7.Nf3 (7.Bd3 Ne7 8.Nh3-/+) 7...Nh6 8.Be2 0-0 9.0-0 Nc6 10.g3 Bd6 11.Nc3 Bh3 (better 11...Be6-/+) 12.Rf2? (12.Re1 Ng4 13.Bd3 Kh8 14.Nd5 Bg3 15.hg3 Qd5-/+) 12...f5 (better 12...Ng4!?-+) 13.Bf1 (13.Nd5 Ng4 14.Bc4 Nf2 15.Nf4 Kh8 16.Kf2 Bf4 17.gf4 Bg4-/+) 13...Bg4 (13...Bf1 14.Rf1 Re8 15.Nd5 Bg3 16.c4-/+) 14.Be2 (14.Nd5!? Bg3 15.hg3 Qd5 16.Bg2=+) 14...f4-+ 15.Nd5 fg3 16.hg3 Bg3 17.Rg2 Qd6 18.Ne3 (18.b5 Be5 19.Ne5 Ne5 20.Ne3 Be2 21.Qe2-/+) 18...Bh3 19.Bc4 (19.Bd3 Bg2 20.Kg2 Rae8-+) 19...Kh8 20.Qf1 (20.Qe2 Bg2 21.Qg2-+) 20...Ne5 (better 20...Be5 21.c3 Bh2 22.Kh1 Bf4-+) 21.Ne5?? (better 21.Rg3 Bf1 22.Be5+-) 21...Rf1-+ 22.Rf1 Bg2 (better 22...Be5 23.Rf3 Bg2 24.Be5 Qe5 25.Kg2-+) 23.Ng2 (23.Nf7 Nf7 24.Rf7-+) 23...Be5 24.c3 Bh2 (better 24...Ng4 25.Rf3 Qd2 26.Bb5-+) 25.Kh1 Ng4 26.d4 Qh6 27.Bc1 (27.Rf7 Bd6 28.Nh4 Ne3 29.Kg1 Qh4 30.Rf2 Bh2 31.Rh2 Qe1 32.Bf1 Qf1) 27...Bf4 28.Kg1 (28.Nh4 Qh4 29.Kg2 Qg3 30.Kh1 Qh2) 28…Qh2 0-1. nakasparov (2065) - Lance5500 (2490), lichess.org, 2016.

    5.g3 a6 6.Bg2 Ne7 7.Ne2 Nbc6 8.d3 0-0 9.0-0 Be6 10.Nd2 Qd7 11.c4 dc4 12.Nc4 Bh3 13.Qb3 Kh8 14.d4 Bg2 15.Kg2 ed4 16.ed4 Rfe8 17.Rfe1= Nf5 18.Ng1 Nfd4-/+ 19.Re8 Re8 20.Qd3 Nf5 21.Nf3 Re7 22.Rd1 Re6?? 23.Qc2?? Nfe7 24.Rd5?? Nd5–+ (24...Nd5 25.Qf5 Be7–+) 0–1. alaamattar (2155) – dyddulikthat (2145), net–chess.com, 2007.

    5.h3 Bf5 6.c4 c6 7.cd5 cd5 8.Bb5 Nc6 9.Qc1 (9.d4!?+=) 9...Nge7 10.Nf3 0-0 11.Nh4 Be6 12.0-0 Rc8 13.Qd1 (13.Nc3 d4 14.ed4 Nd4–+) 13...Bb8 (13...a6 14.Be2-/+) 14.d4 e4 (14...a6 15.Bd3-/+) 15.f3 (better is 15.Qh5+=) 15...Bg3–+ 16.fe4 Bh4 17.ed5 Nd5 18.Qf3 f5 19.Nd2 Rf6 20.Bc4 Rg6 (20...Bg5 21.Rae1–+) 21.e4 (21.Rac1 Bg5 22.Rce1 Rf6–+) 21...Rg3 (21...fe4 22.Qe4 Bg5 23.Bc3–+) 22.Qh5? (22.Bd5!? Bd5 23.Qf5-/+) 22...g6–+ 23.Qd1 Rg2! 24.Kg2 Decoy to g2 24...Ne3 Theme: Double Attack 25.Kh1 Bc4 (25...Nd1 26.Be6 Kh8 27.Rad1+=; 25...Nc4?! 26.Nc4 Bc4 27.Rf4–+) 26.Qc1 (26.Qf3 Nf1 (26...Bf1 27.Qe3 Bb5 28.a4–+) 27.Nc4 Ng3 28.Kh2 Nd4–+) 26...Bf1 27.Nf1 f4 (better is 27...Nf1!? 28.Qc4 Kh8 29.d5 Bf6 30.Bf6 Qf6 31.Rf1–+) 28.Ne3 fe3 29.Qe3 Qe7 (29...Bf6 30.Rd1–+) 30.Qb3 (30.b5 Nd8–+) 30...Kg7 31.e5 (31.d5 Ne5–+) 31...Rf8 32.e6 Nd8 (32...Bf6!? 33.d5 Nd4 34.Bd4 Bd4 35.Rd1–+) 33.d5 Bf6 (33...Kg8 34.Rd1–+) 34.Bf6 (34.Rf1 b5-/+) 34...Qf6 (34...Kf6?! 35.Rf1 Kg7 36.Qc3 Kg8 37.Rf8 Qf8 38.Kg2+=) 35.Rc1 Re8 (35...Qe7 36.Qc3 Kg8 37.Qc5–+) 36.Qg3 (36.Qc3 b5-/+) 36...Ne6 (36...Re7!?–+) 37.de6-/+ Re6 38.Rc7 ½–½. Gross,Siegfried – Sznek,Jorge, CiF, 1991.

    5.Nh3 c6 6.f4 Ne7 7.fe5 fe5 8.Nf2 0-0 9.Be2 Be6 10.0-0 Nd7 11.Nc3 Ng6 12.Bg4 Qe7 13.Be6 Qe6 14.Ne2 Rae8 15.Ng3 Nf6 16.Qe2 b6 17.Nh3 h6 18.Rf2 Ng4 19.Rf8 Rf8 20.Rf1 Rf1 21.Nf1 Nh4 (21...e4 22.Qa6 Qd7 23.Qe2=+) 22.Qa6 Bb8 (22...Nf6!? 23.Ng3 Nf5=+) 23.Qb7+= Qd6?? (better 23...Qe8+=) 24.Qc8+- Kh7 25.Qg4 Ng6 26.Ng3 e4 (26...a5 27.ba5 ba5 28.Nf5+-) 27.Qh5 (better 27.Bg7 Ne5 28.Qc8 Nf7+-) 27...a5 (27...Qd8 28.Nf5 Be5 29.Be5 Ne5 30.Nh6 gh6 31.Qe5+-) 28.Qf5 (better 28.Bg7 Kg8 29.Qh6+-) 28...ab4 29.Nf4 ba3 30.Ba3! Qf6 (30...Qa3 31.Qg6 Double attack (31.Ng6 Deflection; 31.Ng6 Overloading)) 31.Qf6 gf6 32.Ng6 (32.Nfh5 Ne5+-) 32...Kg6 33.Ne2 Be5 34.Bc1 c5 35.g3 f5 36.Kg2 Kf6 37.Nf4 Bf4 38.gf4 d4? (better 38...Ke6+-) 39.Bb2 Ke6 40.ed4 Kd5 (40...cd4 41.Bd4 b5 42.Kg3+-) 41.dc5 bc5 42.Kf2 Kc4 43.Ke3 (43.Bg7 Kb5+-) 43...h5 (43...Kd5 44.Bg7 h5 45.Kf2+-) 44.Bg7 (44.Kf2!? Kd5+-) 44...Kb4 45.h4 c4 (45...Kc4 46.d3 ed3 47.cd3 Kd5 48.Ke2+-) 46.Bc3 (46.Kd4 Ka3+-) 46...Ka3 (46...Kc5 47.Bf6+-) 47.Bd4 (47.Kd4 e3 48.de3 Ka4+-) 47...Ka2 48.Bc3 Kb1?? (48...Ka3 49.Kd4 e3 50.de3 Ka2+-) 49.Kd4 (49.d4 ed3 50.cd3 cd3 51.Kd3 Kc1+-) 49...Kc2 50.Kc4 e3 (50...Kd1 51.Kd4 Kc2+-) 51.de3 Kd1 52.Kd3 (52.Kd3 Kc1 53.e4 fe4 54.Ke3 Kd1 55.f5 Kc2 56.Bd4 Kb1 57.f6 Kc1 58.f7 Kb1 59.f8Q Kc2 60.Qb4 Kc1 61.Qc3 Kd1 62.Qd2) 1-0. FeegLood (2550) - kingston_1972 (2225), lichess.org, 2015.

    5.Nc3 c6

    6.Qh5 g6 7.Qh4 Nd7 8.0-0-0 a5 9.b5 Ne7 10.bc6 (10.Nf3!?=+) 10...bc6 -/+.

    6.Qh5 g6 7.Qh4 Nd7 8.Nf3 Ne7 =.

    5.Nc3 Be6

    6.e4 d4 7.Nd5? (better is 7.Nce2+=) 7...c6–+ 8.Bc4 cd5 9.ed5 Bf7 10.Nf3 Ne7 11.0-0 0-0 12.c3 Nd5 13.cd4 e4 14.Ne1 Nd7 15.d3 N7b6 16.Bd5 Bd5 (16...Nd5?! 17.de4 Nb6 18.Nd3–+) 17.de4 Be4 18.Rc1 Qe8 19.Nf3 Qf7 20.Rc3 Rfe8 21.Re3 (21.Re1–+) 21...Nc4 22.Rb3 (22.Re4 Re4 (22...Nb2?! 23.Re8 Re8 24.Qc2–+) 23.Qb3 Rae8–+) 22...Bf3 23.gf3 Qg6 24.Kh1 Qh6 25.f4 Bf4 26.h3 (26.Rg3 Rac8 27.Re1–+) 26...Re3! 27.fe3 (27.Re3 Ne3 Double attack; 27.fe3 Qh3 Mate attack) 27...Qh3 0–1. ccarney (2110) – pierred (2755), net–chess.com, 2013.

    6.f4 ef4 7.ef4 Bf4 8.g3 Be5 9.Qe2 a6?? 10.Nf3?? Nc6 11.b5 ab5 12.Ne5 fe5-/+ 13.Nb5 d4 14.Bg2 Nge7 15.0-0 Na5?? 16.Qe5+– Bc4 17.Nc7 (17.Nc7 Kd7 18.Bh3 Kc6 19.Na8 Bf1 20.Rf1+–) 1–0. rabelloenter (2050) – roadrunner (2135), net–chess.com, 2006.

    5.c4 dc4

    6.Nc4 Nc6 7.Qb3 Nge7 8.Bf7 Kf8 9.Bh5 g6 10.Be2 a6 11.Nf3 Qe8 12.d4 Nf5 13.de5 Be5 14.Ne5+/– Ne5 15.0-0 Be6 16.Qc2 c6 17.Be5 fe5 18.Qc5 Qe7 19.Qe5 Kf7 20.Nc3 Rhe8 21.Ne4 Bd5 22.Qe7 Re7 23.Nc3 Be6 24.Ne4 Rd8 25.Ng5 Kg7 26.Ne6 Re6 27.Bg4 Red6 28.Bf5 gf5+= 29.h3 Kg6 30.Kh2 h5 31.Ra2 Kg5 32.f4 Kf6= 33.Rff2 Rd3 34.Rfe2 R8d5 35.Kg3+= ½–½. Chairboy – MikeMcC, ChessWorld.net, 2004.

    6.Bc4 Nc6 7.d3 =.

    6.Bc4 Bd7 7.Qb3 Qe7?? (better is 7...Nh6=) 8.Bg8+– Nc6 9.Bc4 0-0-0 10.Ne2 a6 11.a4 (better is 11.Nbc3!? e4+–) 11...Bb4 12.Ba3 a5 13.Nbc3 Kb8 14.0-0 Na7? (14...Bg4 15.d3 Ba3 16.Ra3 Qb4+–) 15.Nd5 Qd6 16.Nb4 Qd2 (16...Qb6+–) 17.Rfd1 (better is 17.Ra2!? Qb4 18.Bb4 ab4 19.Qb4 Nc6+–) 17...Qd1 18.Rd1 Bg4 (18...ab4 19.Bb4 Nc6 20.Bd2+–) 19.Rd8 (19.Na6!? Ka8 20.Rb1 Bc8+–) 19...Rd8 20.Na6 Kc8 21.Be6 Be6 22.Qe6 Rd7 23.Nc5 b6 24.Qd7 Kb8 25.Na6 Kb7 26.Nc7 b5 (26...Kb8 27.Bd6 Nc8 28.Nb5 Nd6 29.Qc7 Ka8 30.Qa7) 27.Nb5 Kb6 28.Qa7 (28.Qc7 Ka6 29.Qa7) 28...Kc6 29.Qc7 (29.e4 f5 30.Qc7) 29...Kd5 30.Nec3 Ke6 1–0. Rempe,Torge – Arndt,Rimo, Schleswig Holstein–chB U16, 2001.

    6.Bc4 Nd7 7.Nc3 Nh6 8.Nf3 Nb6= 9.Bb3 Bg4 10.h3 Bh5 11.0-0 Qd7 12.e4 0-0-0 13.Qe2 g5 14.Nb5 Kb8 15.d4 g4?? 16.hg4+= Bg4 17.de5 fe5 18.Nd6+= Qd6 19.Qe3 Bf3 20.Qf3 Rhf8 21.Qg3 Nc8? 22.Be5+– Qe7 23.Rac1 Rd7?! 24.Ba4 Rg8 (24...Rg8 25.Bd7 Rg3 26.Rc7 a5 27.Bg3 Nd6+–). wlittle (2125) – bar (1905), net–chess.com, 2004.

    6.Bc4 Ne7 7.Nc3 Bf5 (7...Nbc6 8.Nf3=) 8.Nf3 (8.e4 Bg6=) 8...Nd7+= 9.Nh4 Bg6 (9...Nb6 10.Nf5 Nf5 11.Be6+=) 10.Ng6 hg6 (10...Ng6 11.0-0+=) 11.Ba2 (11.Qb3 a5+=) 11...a5 (11...Nf5 12.Ne4+=) 12.Qb3 Rf8 13.Ne4 Nb6 (13...ab4 14.ab4 Nb6 15.Nc5 Bc5 16.bc5+/–) 14.0-0 (14.Nc5 a4 15.Qc2 Bc5 16.bc5 Nd7+/–) 14...a4 (14...ab4 15.ab4 Nbd5 16.Nc5+/–) 15.Qc2+/– Nf5 16.d4 (16.Nc5 Bc5 17.bc5 Nd7+/–) 16...ed4 17.Bd4 Rh8 18.h3 Be7 (18...Nc8!?+/–) 19.Nc5 Qb8 (19...Bc5 20.Bc5 (20.Qc5?! Qe7+/–) 20...Nc8 21.Qe4 Nce7 22.Rad1+–) 20.Ne6 Bd6? (20...Kd7+–) 21.Ng7! Kf8 (21...Ng7 22.Qe4 Double attack) 22.Nf5 gf5 23.Qf5 (23.Qf5 Rh6 24.Qg4 Bh2 25.Kh1+–) 1–0. Bjazevic,Pavao (2245) – Yeung,Chun Keung (1640), WSTT/3/06/Semifinal, 2008.

    6.Bc4 Ne7 7.Ne2 Nbc6 8.0-0 Bg4 9.f3 Bh5 10.Nbc3 a6 11.Rc1 Qd7 12.Ne4 Bg6 13.d4 Nf5 14.Qd3 Rd8 15.f4 ed4 16.ed4 Be7 17.d5 Nb8 18.Nd4 c6 19.d6 Nd6 20.Nd6 Qd6 21.Qe3 Nd7? 22.Ne6+– (22.Ne6 Qb8 23.Ng7 Kf8 24.Rfd1+–) 1–0. lasker (2090) – kchm_2000, internet, 2007.

    6.Bc4 Ne7 7.Nf3 Bg4 8.h3 Bh5 9.Nc3 Nd7 (9...a5 10.b5=) 10.0-0 Nb6 11.Ba2 Qd7 (11...a5!? 12.b5 f5=) 12.Ne5!+/– Be5 (12...fe5 13.Qh5) 13.Qh5+– g6 14.Qe2 0-0-0 (14...c6 15.d4 Bc7 16.Ne4+–) 15.d4 Bd6 16.Rad1 (16.Qf3 f5+–) 16...Kb8 (16...f5 17.Rc1+–) 17.Ne4 (better is 17.e4 Bf4 18.Qf3+–) 17...Rhf8? (better is 17...Ned5+–) 18.Nc5 (18.Nd6?! Qd6 19.Rc1 f5+–) 18...Bc5 19.dc5 (19.bc5?! Nbd5+–) 19...Qc8 (19...Nbd5+–) 20.cb6 ab6 21.Rd8 Qd8 22.Rd1 Qc8 (22...Qe8 23.Qd3+–) 23.Qd3 (23.Qc4 Nf5+–) 23...Nc6 24.Qd7 Qd7 25.Rd7 h6 26.Rf7 (26.Rf7 Rf7 27.Bf7+–; 26.Rg7!? Rd8 27.Bf6 Rd1 28.Kh2 Rd2+–) 1–0. Naasen,Nils (1915) – Legg,Jerry (1735), IECG, 2004.

    6.Bc4 Ne7 7.Qh5 g6 8.Qf3 Nd7 =.

    6.Bc4 Nh6 7.Qh5 Kf8 8.Nc3 Nc6 9.Nge2 Qe7 10.0-0 Bg4 11.Qh4 Be6 12.Be6 Qe6 13.Ng3 Ke7 14.Qh5 Qg4 15.Qg4 Ng4 16.h3 Nh6 17.Nge4 Rad8 18.Nd6 Rd6 19.Rfd1 Rhd8 20.Ne4 Rd3 21.Bc3 b6 22.Ng3 (22.b5!? Nb8 23.f4 ef4 24.ef4=) 22...Ke6 23.Kf1 Ne7 24.Ke2 f5 (24...c6 25.Rdc1+=) 25.f3 (25.Nh5!? g6 26.Ng7 Kf7 27.Be5=) 25...g6 26.Nf1 e4 (better is 26...c6+=) 27.fe4+/– fe4 28.Ng3 Kd5 29.Rac1 (29.Nh1!?+/–) 29...Nhf5= 30.Nf5 Nf5 31.Bf6? (31.g4 Nd6=) 31...Rd7 (31...Rf8 32.g4 Ng3 33.Kf2 Rf6 34.Kg3-/+) 32.Bc3 (32.g4 Ke6 33.Rc6 Nd6=) 32...Ke6 (32...Rf7 33.Rg1-/+) 33.Kf2 Nd6 34.Bd4 (better is 34.a4!?-/+) 34...Nb5 35.Bb2? (35.Ke2 Ra3 36.Rc6 Kd5–+) 35...Na3 (better is 35...Rd2 36.Rd2 Rd2 37.Kg3 Rb2–+) 36.Ba3 Ra3 37.Rc6 Ke5 38.Rc4 (38.Ke2 Ra2–+) 38...Ra2 (38...Ra4!? 39.Rdc1 Rd2 40.Kg3–+) 39.Ke2 Kd5?? (better is 39...a5–+) 40.Rd4= Kc6?? (40...Ke6 41.Re4 Kf5=) 41.Re4 (better is 41.Rc1 Kb5 42.Rd7+–) 41...Rb2 42.Rc1 Kb5 43.Rd1 Rb4 44.Re5 Ka6 45.Ra1 Kb7 46.d4 a5 47.Kf3 a4 48.g4 b5 49.Rc5 c6 50.Rac1 Rc7 51.d5 Rc4?? (better is 51...Rf7 52.Ke2 cd5 53.Rd5 Rb2 54.Kd3 Kb6–+) 52.R5c4= bc4 53.Rc4 cd5 54.Ra4 Rc4 55.Ra1 Kc6 (55...Rc3 56.g5=) 56.Rd1 (56.Ra7!?+=) 56...Kd6= 57.Rd4 Rd4 58.ed4 g5 59.Ke3? (59.h4 gh4 60.g5–+) 59...Kc6–+ 60.Kd3 Kb5 61.Kc3 Ka4 62.Kc2 White threatens to counter with Ka3 62...Kb4 63.Kd3 Kb3 64.Ke2 Kc4 65.Ke3 Kc3 66.Ke2 Kd4 67.Kd2 Ke4 68.Ke2 d4 69.Kd2 d3 0–1. Fournier,Frederic (1680) – metdinov (1835), Active, 2008.

    6.Bc4 Qe7

    7.Qb3 Nh6 8.Nc3 c6 9.b5 cb5 10.Nb5 Nc6 11.a4 (better is 11.Nd6 Qd6 12.d4+=) 11...Nf7?? (better is 11...Bc5=) 12.Bf7+– Kf8 (12...Kd8+–) 13.Nd6 Qd6 (13...a5 14.Ba3 Nb4 15.Bb4 ab4 16.Nc8 Rc8 17.Bc4+–) 14.Ba3 Qa3 15.Ra3 g6 16.Bd5 Kg7 17.Bc6 bc6 18.Qb4 Re8 19.f4 ef4 20.Qf4 g5 (20...Be6 21.Ne2+–) 21.Qc7 Kg6 22.h4 Bg4 23.hg5 Kg5 24.Qf4 (24.Qf4 Kg6 25.Qg4 Kf7 26.Rh7 Kf8 27.Qg7) 1–0. Nikolaev,Dmitriy – Zarodov,Alexandr (1935), Kimry–ch, 2008.

    7.Qb3 Nh6 8.Nc3 c6 9.b5 Rf8 10.Rd1 f5 (10...Nd7 11.bc6 bc6 12.Ne4=) 11.Nge2 Qg5 Black prepares the advance f4 (11...a6 12.bc6 bc6 13.d3+=) 12.0-0+– f4? (better 12...Ng4!? 13.f4 Qg6+–) 13.ef4 ef4 (13...Qf5 14.fe5 Be5 15.Ng3 Bg3 16.fg3 (worse 16.hg3 Ng4+–) 16...Qc5 17.Kh1 Rf1 18.Rf1+–) 14.Rfe1 (better 14.Ne4!? Qg6 15.Nd6 Qd6 16.Bg7 Rf5+–) 14...Be7 (14...f3 15.Ng3 Be7 16.bc6 Nc6 17.Nd5+–) 15.Ne4+– Qg6 16.Bd3 Kd8 17.Nf6 Qf7 (17...Nf5 18.Nf4 Qh6 19.Ne6 Be6 20.Re6 Bf6 21.Bf5+–) 18.Bc4 Qg6 19.Nf4 Qf5 20.Ne6 (better 20.bc6 bc6 21.Ne6 Be6 22.Be6+–) 20...Be6 21.Be6 Qb5 22.Qb5 (22.Nh7 Qb3 23.Bb3 Rh8+–) 22...cb5 23.Nd5 Bc5? (23...Bf6 24.Nf6 gf6+–) 24.Bg7 Bf2 25.Kh1 Re8 (25...Be1 26.Bf8 Bh4 27.Bh6 Nd7+–) 26.Bf6 (26.Bf6 Re7 27.Be7 Ke8 28.Re2+–) 1–0. Kennis,Maarten – Barth,Mike, Belgian Junior Chess Championships, 2009.

    7.Qb3 Nh6 8.Ne2 Nc6 9.0-0 Bd7 10.d4 Qf8 11.Bc3 0-0-0 12.b5 Nb8 13.Rc1 b6 14.a4 a5? 15.ba6 Nc6 16.a5 Bb4 17.ab6 cb6 18.d5 Bc3 19.Rc3 Ne7 20.Qb6 1–0. MrThayer (2210) – GigMaster, ChessWorld.net, 2003.

    7.Qb3 Nh6 8.Nf3 Nd7 9.0-0 Nb6 10.Be2 Be6 11.Qc2 Nf5 (11...a5 12.d4=) 12.Nc3 (12.d4 ed4 13.Bb5 c6+=) 12...a5 13.b5 a4 14.Ne4 (14.d4 ed4 15.ed4 g6+=) 14...0-0 (14...Bb3 15.Qb1=) 15.d3 Bb3 16.Qd2 Nd7 (16...Rad8 17.Rfc1=) 17.Nd6 (17.d4 Rad8+=) 17...Nd6= 18.Qb4 b6 (18...Nb6 19.Nd2 Be6 20.d4=) 19.d4 e4 20.Nd2 Bd5 21.Rac1 Rfc8 22.Nc4 (22.Rc3 Ra7+=) 22...Qe6 23.Nd6 cd6 24.Rc8 Rc8 25.Qa4 Bb3 26.Qb4 f5 (26...Ba2 27.Ra1+/-) 27.Bd1 (27.Rc1!? Rc1 28.Bc1+/-) 27...Bc4+= 28.Re1 Nf6 29.a4 Nd5 30.Qa3 Bd3 31.a5 (31.Bb3 Bc2 32.Rc1 Bb3 33.Rc8 Qc8 34.Qb3+-) 31...Bb5 (31...Ra8 32.Bc3 Bc4= (worse 32...Nc3 33.Qc3 Ra5 34.Bb3+=)) 32.ab6+/- Nb6? (better 32...Bc4 33.Qa7 Qe8+-) 33.Qa5+- Qc4 (33...Rb8 34.Qb5 Nd7+-) 34.Ba3 (better 34.Qb6 Qb4 35.Re2+-) 34...Qc3 (34...Nd5 35.Bd6 Qc3 36.Qc3 Rc3 37.h4+/-) 35.Qc3 Rc3 36.Bd6 Kf7 37.h3 (37.Bb4 Rc6+/-) 37...Rb3?? (better 37...Nd5+=) 38.Bb3+- (38.Bb3 Bc4 39.Rb1+-) 1-0. A3orA6 (2325) - OzgurAkman (2230), Rated Blitz game, lichess.org, 2019. (=1.a3 A00: Irregular Openings 1...e5 2.b4 d5 3.Bb2 Bd6 4.e3 f6)

    7.Nf3 Be6 8.Qb3 Bc4 9.Qc4 Nh6 10.0-0 Nf7 (10...Nd7 11.Nc3+=) 11.d4 (11.Nc3 0-0+/-) 11...0-0 12.de5 fe5 13.Nbd2 Nc6 (13...Nd7 14.Ne4+/-) 14.Ne4 Kh8 15.Rfd1 Nh6 (15...a6 16.h3+/-) 16.b5+- Na5 17.Qa4 b6 18.Nd6 (better 18.Bc3+-) 18...cd6+= 19.Qe4 (19.e4 Nb7+=) 19...Rac8 20.Rac1 Nb3 (20...Rc1!? 21.Rc1 Nb3+=) 21.Rc6+/- Nc5 22.Qd5 Nf5 (22...Rcd8 A) 23.Rd6 Nf7 24.Ne5 Rd6 25.Nf7 Qf7 26.Bg7 Kg7 27.Qf7 Rf7 (27...Kf7?! 28.Rd6 Ke7 29.Rh6=+) 28.Rd6 Rf2-+; B) 23.h3+/-) 23.e4 Nd4 (23...Nh6!?+/-) 24.Nd4+- (worse 24.Bd4 ed4 25.Nd4 Qe5+- (25...Ne4?? 26.Rc8 Rc8 27.Nc6+-)) 24...ed4 25.Bd4 (25.Qd4 A) 25...Ne4?? 26.Re1 d5 27.Rc8 (27.Qd5?! Rcd8 28.Qe6 Qf7+-) 27...Rc8 28.f3+-; B) 25...Rcd8+-) 25...Ne4 26.Re1 Rc6?? (better 26...Rce8+-) 27.bc6 Nf6 (27...Qf7 28.Qe4 Qg6 29.Qe7+-) 28.Re7 Nd5 29.Rg7 Nf6 (29...h6+-) 30.Ra7 Kg8 1-0. cipiripi (2340) - pacal56 (2245), Rated Blitz game, lichess.org, 2015.

    5.c4 c6

    6.Qb3 Be6 7.Nf3 (7.d4 Nd7 8.Nd2 ed4 9.Bd4 Ne7 10.Ngf3=; 7.Nc3 Ne7 8.cd5 Bf7 9.e4 0-0 10.Nf3=; 7.Be2 dc4 8.Bc4 Bc4 9.Qc4 b5 10.Qe6=) 7...Nh6 (7...Nd7 8.Be2 e4 9.Nd4 dc4 10.Qc2=) 8.c5 (8.Nc3 dc4 9.Bc4 Bc4 10.Qc4+=) 8...Be7 (8...Bc7 9.Be2 0-0 10.0-0=) 9.d4 (9.Be2 Bg4 10.h3=) 9...e4 10.Nfd2 0-0 (10...Qd7!?=) 11.Ne4+/– Qd7 12.Ng3 f5 13.Ne2 g5 (13...Ng4!?+/–) 14.h4!+– g4 (14...gh4 15.Nd2) 15.Qa4 Na6 16.Nf4 Nc7 17.Nc3 b5 18.Qb3 Bf7 19.Bd3 Ne8 20.Rc1 Nf6 21.a4 a6 22.Ra1 Ne4 23.Nce2 Kg7 24.f3 gf3 25.gf3 Nf6 26.Ng3 Kh8 27.Qc2 Be6 28.Rg1 Nfg8 29.Qh2 Rfb8 30.Ngh5 ba4? (30...Nf6 31.Nf6 Bf6 32.Nh5+–) 31.Ra4 (31.Qg3!? Bf8 32.Nd5 Qd5+–) 31...Rb7 (31...Nf6 32.Nf6 Bf6 33.Nh5+–) 32.Ra6 Ra6 33.Ba6 Rb4 (33...Ra7 34.Ng6! hg6 35.Qe5 Bf6 36.Nf6+–) 34.Ng6! (34.Ne6?! Qe6 35.Bc1 Rb1+–) 34...hg6 35.Qe5 Bf6 36.Nf6 Qg7 37.Rg6! (37.Qe6?! Nf6 38.Bc1 Kh7+–) 37...Qg6 38.Nd5 Kh7 39.Nb4 Qg1 40.Kd2 (40.Kd2 Qf2 41.Be2+–) 1–0. Urgelles Paumier,A – Rodriguez Guerra,L, corr Carlos M de Cespedes, 2004.

    6.Qb3 Ne7 7.cd5 (7.Nc3 a5 8.c5 Bc7 9.b5 b6 10.Na4=; 7.Nf3 e4 8.Nd4 a5 9.ba5 Na6 10.cd5=; 7.Be2 0-0 8.Nc3 dc4 9.Bc4 Kh8 10.Nf3=; 7.c5 Bc7 8.Be2 b6 9.d4 Nd7 10.Nf3=) 7...cd5 8.Nc3 Bc7 9.e4 de4 10.Ne4=.

    6.Qc2 Ne7 7.Be2 Bf5 8.d3 0-0 9.Nf3= Nd7 10.Nbd2 Rc8 11.e4 Bg6 12.c5 Bc7 13.0-0 f5 14.Qb3 fe4 15.de4 Kh8 16.ed5 cd5 17.Rfd1 Qe8 18.Bb5+= e4 19.Qc3 Nf5? 20.g4 d4 21.Nd4 Nd4 22.Qd4 Be5 23.Qd7 Bb2 24.Qe8 Be8 25.Ra2 Bb5 26.Rb2 Bd3 27.Re1 Rfe8 28.Ra2 a5 29.Raa1 g5 30.Re3+– b6 31.Ne4?? Be4 32.cb6 ab4 33.ab4 Bb7=+ 34.Rae1 Re3-/+ 35.fe3 Rc6 36.e4 Rb6–+ 37.e5 Rb4 38.e6 Re4 39.Rb1? Bc6 40.Rb6 Re6 41.Kf2 Kg7 42.Kg3 Re3 43.Kf2 Rc3 44.Rb2 Rf3 45.Ke2 Rh3 46.Ke1 Bd7 47.Rb7 Rd3 48.Ke2 Rd6 49.h3 Kf6 50.Ke3 Ke6 51.Ke4 Bc6 (51...Bc6 52.Ke3 Bb7–+) 0–1. wlittle (2300) – thefrench (2475), net–chess.com, 2004.

    6.Nc3 a5 7.b5 Be6 8.bc6 bc6 9.cd5 cd5 10.Qh5=.

    6.d3 a5 7.c5 (7.Qa4 Ne7 8.c5 b5 9.Qd1 Bc7 10.Qh5+=) 7...Be7 8.d4 ab4 9.ab4 Ra1 10.Ba1=.

    6.d3 Be6 7.Nf3 (7.Be2 a5 8.c5 Bc7 9.Nf3 ab4 10.ab4=; 7.c5 Bc7 8.Be2 Nd7 9.Nf3 Ne7 10.0-0=; 7.cd5 cd5 8.d4 Nc6 9.de5 fe5 10.b5=; 7.Qh5 g6 8.Qf3 Nd7 9.Nc3 Ne7 10.Be2=) 7...Nd7 8.Be2 Ne7 9.0-0 0-0 10.c5=.

    6.d3 Ne7 7.c5 (7.Nf3 b6 8.cd5 cd5 9.Be2 0-0 10.0-0=) 7...Bc7 8.Qb3 (8.Qh5 g6 9.Qf3 Nd7 10.Nh3+=) 8...Be6 9.Nc3 (9.Nf3 Qd7 10.Be2=) 9...Bf7 (9...b6 10.d4+=) 10.Qc2 0-0 11.Nf3 Nd7 12.Be2 Re8 13.0-0 Nf8 14.Nb1 Ne6 15.Rd1 Qb8 16.Nbd2 a6 17.Bc3 Rd8 18.Bb2 Rd7 19.Nb3 Qa7 20.Rd2 Rad8 21.Rad1 Qb8 22.h3 Kh8 23.Kf1 Qc8 24.Qb1 Qb8 25.Qc2 Re8 26.Qb1 Bd8 ½–½. Koch,Marvin – Warnecke,Werner, BEM–ch U16/18, 1998.

    6.d3 Ne7 7.h3 0-0 8.Be2 Be6 9.Nd2 a5 10.cd5 cd5 11.Ngf3 ab4-/+ 12.a4 Nbc6 13.0-0 Qc7 14.Nb3 Na5 15.Rc1 Qb6 16.Nfd2 Rac8 17.Na5 Qa5 18.e4 d4 19.Nc4 Bc4 20.Rc4 Ra8 21.Bg4 Qa4 22.Qf3 Qb3 23.Rb1 Ra2?? 24.Qe2?? Ng6 25.Be6 Kh8 26.g3?? Ne7 27.Rc8= (27.Rc8 Qe6 28.Rf8 Ng8 29.Rd8-/+). wlittle (2155) – leen (2090), net–chess.com, 2005.

    6.d3 Bf5 7.d4 (7.Nd2 Ne7 8.e4 Bg6 9.Ngf3 a5 10.c5=) 7...Ne7 8.de5 Be5 9.Be5 fe5 10.Nf3=.

    6.d3 Nh6 7.d4 (7.cd5 cd5 8.Nc3 Be6 9.d4 ed4 10.Qd4=; 7.Qh5 Nf7 8.d4 0-0 9.cd5 cd5 10.Nc3=; 7.Nc3 a5 8.b5 Be6 9.cd5 cd5 10.d4=; 7.c5 Bc7 8.Qh5 Nf7 9.Nf3 b6 10.d4=) 7...0-0 8.cd5 cd5 9.de5 Be5 10.Nc3=.

    6.d4 ed4 7.ed4 dc4 8.Bc4 Qe7 9.Qe2 Qe2 10.Ne2 Bf5 11.0-0 Nd7 12.Re1 0-0-0 13.Nd2 Nb6 14.Bb3 Nh6 15.Ng3 Bg6 16.Nc4 Nc4 17.Bc4 Rhe8 18.Kf1 Bg3 19.fg3 Ng4 20.Be6= Re6 21.Re6 Nh2 22.Kf2 Ng4 23.Kf3 Nh6 24.g4 Nf7 25.Re7 Ng5 26.Kf4 Rd5 27.Rae1 Rd7 28.Rd7 Kd7 29.Bc1 Ne6 30.Ke3 Kd6 31.g3 Kd5 32.Rd1 Ng5 33.Kf4 Ne6 34.Kf3 h5 35.gh5= Bh5 36.g4 Bg6 37.Bf4 Be4 38.Ke3 g5 39.Bb8 a6 40.Rc1 Bg2 41.a4 Bh3 42.Rg1 f5 43.gf5 Bf5 44.Rc1 Bg4 45.Be5+= b6 46.Bf6 Bf5 47.Bg5 Ng5 48.Kf4 Be4 49.Kg5 Kd4 50.Kf4 Bd5 51.Kf5 c5 52.bc5 bc5 53.a5 c4= 54.Kf6 Be4=+ 55.Ke6 Bd3 56.Kd6 c3 57.Kc6 c2 58.Kb6 Kc3 59.Rh1 Kb2 60.Rh3 Bb5 61.Rh2 Kc3 62.Rc2 Kc2 63.Kc5 Kb3 64.Kd5 Ka4 65.Kd4 Ka5 66.Kc3= Ka4 67.Kb2 Bc4 68.Ka1 Kb3 69.Kb1 a5 70.Ka1 a4 71.Kb1 a3 72.Ka1 Ka4 73.Kb1 ½–½. Istvanny – Rob, internet, 2007.

    6.d4 ed4 7.Bd4 Ne7 8.Qh5 g6 9.Qh4 Nd7 10.Bf6+=.

    6.d4 Nd7 7.Nc3 Ne7 8.Bd3 e4 9.Be2= 0-0 10.c5 Bc7= 11.Qb3 Kh8 12.Nh3 Ng6 13.0-0-0 f5=+ 14.Bh5 Qf6 15.Ne2 b6 16.Bg6 Qg6 17.Nhf4 Qf7 18.h4 Nf6 19.g3 Ng4 20.Rdf1 a5 21.Qc3 ab4–+ 22.ab4 b5 23.Ng1 Ra4 24.Ngh3 Ba5! 25.ba5 Rc4–+ 26.Qc4 bc4 27.Bc3 Ba6 28.Kd2 h6 29.Rb1 Bb5 30.Bb4 Kg8 31.Rb2 Nf6 32.Ra1 Ra8 33.Kc3 Nh7 34.Ne2 Qh5 35.Nef4 Qg4 36.Rba2? g5 (36...g5 37.hg5 hg5–+) 0–1. sandtheory – IsickboyI, ChessWorld.net, 2005.

    6.d4 e4 (--> 5.d4 e4 6.c4 c6).

    6.d4 Bf5 7.cd5 cd5 8.de5 Be5 9.Be5 fe5 10.Nf3 Qd6 11.Nbd2 (11.Bc4 Nf6 12.Nc3 e4 13.Nd4 dc4 14.Nf5 Qe5 15.Nd6 Ke7=) 11...Nf6 12.Rc1 (12.Bb5 Bd7 13.Rc1 0-0 14.Bd3 Qe7 15.e4= a5+=) 12...Nbd7 13.Bb5 a6 14.Nc4 Qe6 15.Bd7+= Nd7+=.

    6.d4 Bf5 7.cd5 cd5 8.de5 Be5 9.Be5 fe5 10.Nf3 e4 11.Nd4 Bg6 (11...Qf6!?+= 12.Qb3 (12.Nc3 Ne7 13.Ncb5 Na6 14.Nf5 Nf5 15.Rc1+=; 12.Bb5 Nc6 13.Nc3 Nge7 14.Qh5 Bg6 15.Qh3=; 12.Qh5 g6 13.Qe2 Ne7 14.b5 Nd7 15.Nc3=) 12...Ne7 13.Nc3 Qe5 14.Nf5 Qf5 15.Rd1+/–; 11...Ne7 12.Nc3 Qd7 13.Na4 0-0 14.Nc5 Qc7 15.Rc1+=; 11...Qd7 12.Nd2 (12.Bb5 Nc6 13.Nc3 Nge7 14.Rc1 a6 15.Bc6+=; 12.Qh5 g6 13.Qd1 Nc6 14.Bb5 Nge7 15.Nd2+=; 12.Nc3 Ne7 13.Na4 0-0 14.Nc5 Qc7 15.Rc1+=) 12...Nc6 13.N2b3 Nd4 14.Qd4 Nf6 15.Qe5+=) 12.Ne6+/– Qe7 (12...Qd6 13.Qd5 Qd5 14.Nc7 Kf8 15.Nd5+/–) 13.Bb5 (13.Qd5 Nc6 14.Bb5 Rc8 15.Nd2+–) 13...Nc6 14.Qd5 Rc8 15.Nd2 Nf6 16.Qe5 Kf7 17.Bc6 Rc6 18.Ng5 Kf8 19.Qb8 Be8 20.Qf4 (20.Qa7?! Qe5 21.0-0 Qg5 22.Qb7 Qe5=) 20...h6 21.Nge4 Kf7 (21...g5 22.Qf5+–) 22.0-0 Rf8 23.Nf6 Rf6 24.Qc4 Kg6 25.Rac1 Bc6 26.b5 Bd7 27.Qd3 Bf5 28.e4 Be6 29.e5 (29.e5 Rf5 30.g4+–) 1–0. marekt – leighcastle, ChessWorld.net, 2003.

    6.d4 Bf5 7.cd5 cd5 8.de5 Be5 9.Be5 fe5 10.Nf3 Bg4 A) 11.Be2 A1) 11...e4 12.Nd4 Be2 13.Ne2 (13.Qe2 Nf6 14.Nc3 0-0 15.0-0 Qd7=) 13...Nf6 14.Nbc3 Na6 15.Nf4+= Nc7+=; A2) 11...Bf3 12.Bf3 e4 (12...Nf6 13.Nc3 e4 14.Bh5 g6 15.Be2 Nc6+=) 13.Bh5 g6 14.Be2 Nf6 15.0-0+= 0-0+=; B) 11.Qa4 B1) 11...Bd7 12.Qb3 e4 13.Nd4 Qg5 (13...Nf6 14.Nc3 Bg4 15.Bb5 Ke7+/–) 14.Nc3 Nf6 15.Rd1+= Kf7+=; B2) 11...Kf8 12.Ne5 Qf6 13.Ng4 Qa1 14.Bd3 Qb2 15.0-0 Ne7+=.

    6.d4 Bf5 7.de5 Be5 8.Be5 fe5 9.Nf3 a5 10.cd5=.

    6.d4 Nh6 7.cd5 (7.de5 Be5 8.Be5 fe5 9.cd5 cd5 10.Nc3=) 7...cd5 8.de5 Be5 9.Be5 fe5 10.Nc3=.

    6.Be2 Be6 7.Qc2 Nd7 8.Bd1 Rc8 9.Ne2 Ne7 10.c5= Bb8 11.0-0 Nf8 12.f4 Qd7 13.fe5 fe5 14.Ng3 Bg4 15.d4 e4 16.Qf2 Be6 17.Bh5 Nfg6 18.Nd2 Kd8 19.Nde4 de4 20.Ne4 Qd5 21.Nd6?? Bd6 22.e4?? Bh2! 23.Kh2 Qh5 24.Kg1 Bc4 25.Rfc1 Rf8 26.Qg3 Qe2 27.Bc3 Rf4 28.Re1 Qg4 29.Qe3 Nh4 30.Qh3 Nf3 31.Kh1 Qh3 32.gh3 Ne1 33.Re1 Rf3 34.Kg2 Rc3 0–1. KlausMueller – nivla, playchess.de, 2003.

    6.Nf3 e4 7.Nd4 Ne7 8.cd5 Nd5 9.d3+=.

    6.Nf3 Be6 7.Qc2 Nd7 8.Be2 Rc8 9.c5 Bb8 10.Nc3 Ne7 11.h3 Ng6 12.h4 h5?? (better is 12...Ne7=) 13.Qg6+– Bf7 14.Qc2 Nf8 15.d4 e4 16.Nd2 Bg6 17.Qb3 Bf7 18.g4 (18.Rb1 f5+–) 18...Ne6 19.gh5 Bh5 20.Bh5 Rh5 21.Nce4! Qe7 (21...de4 22.Qe6 Double attack (22.Qe6 Pinning; 22.Qe6 Deflection; 22.Qe6 Decoy)) 22.Ng3 Bg3 23.fg3 Qc7 24.e4 Ke7 25.Qf3 Rch8 26.0-0-0 R8h6 27.ed5 Rd5 28.Ne4 a5 (28...Qd7 29.Rhe1 Kf8 30.Nd6+–) 29.Nd6 (better is 29.Nc3!? ab4 30.Nd5 cd5 31.Qd5 ba3 32.Ba3 Qg3 33.Qb7 Kf8+–) 29...ab4 30.ab4 Rh8 31.Rhe1 Kd7 (31...Rd6 32.cd6 Qd6+–) 32.Qg4 (better is 32.Re6 Kd8+–) 32...f5 33.Nf5 Rg8 (33...g5 34.Re6! Ke6 35.Rf1+–) 34.Re6! Ke6 35.Qg6 (better is 35.Ne3 Ke7 36.Nd5 cd5 37.Qg5 Kd7 38.Qd5 Kc8 39.Qg8 Qd8 40.Qe6 Qd7+–) 35...Kd7 36.Qf7 Kc8 37.Qg8 Rd8 38.Qe6 Kb8 39.Qe5 1–0. combijack (1745) – surnight (1665), gameknot.com, 2010.

    6.Nf3 Be6 7.c5 Bc7 8.Be2 Ne7 9.d4 e4 10.Nfd2 0-0 11.0-0 Nf5 (11...f5 12.b5=) 12.Bg4 (12.Nc3 Nd7=) 12...Qe8 13.Qe2 (13.Nc3 Qg6=) 13...Qg6 14.Bf5 (14.h3 Bf7=) 14...Bf5+= 15.Nc3 Bg4 (15...Re8 16.Rfb1+=) 16.f3 Qh5 (16...ef3 17.Nf3 Nd7 18.e4+=) 17.h3= ef3 18.Nf3 Bf3 (18...Be6!?+=) 19.Qf3+= Qf3 20.Rf3 (20.gf3 Rd8+=) 20...Re8 21.Re1 Nd7 22.e4 (22.Kf2 Re6=) 22...Re7 23.Kf2 Rae8 24.Rfe3 de4 25.Re4 Re4 26.Re4 Re4 27.Ne4 f5 (27...h5 28.Ke3=) 28.Ng5 Nf6 29.Ne6 (29.Bc1 Bd8=) 29...Ne8 (29...Nd5 30.Bc1=) 30.Kf3 Kf7 31.Ng5 Kg6 32.Ne6 h6 (32...Kf7 33.Nc7 Nc7 34.h4=) 33.Nc7 (33.d5!? cd5 34.Bg7+=) 33...Nc7= 34.Kf4 Nd5 35.Ke5 Ne3 36.Bc1 (36.Kd6 f4 37.b5 cb5+=) 36...Ng2-/+ 37.Kd6? (better is 37.Bd2!?-/+) 37...f4–+ 38.Bf4 Nf4 39.Kc7 Nh3?? (better is 39...Ne6 40.Kb7 Nd4 41.Ka7 h5–+) 40.Kb7+= White threatens b5 40...Nf4 41.Kc6 h5 42.Kd6 h4?? (42...Kf6 43.b5 h4 44.b6 ab6 45.cb6+=) 43.c6= Nd5 44.Kd5 h3 45.c7 h2 46.c8Q h1Q 47.Kd6 Qh2 48.Kc6 Qh1?? (48...Qc2 49.Kb7 Qe4 50.Qc6 Qc6 51.Kc6 Kf6+–) 49.Kb5+– Qf1 (49...Qd5 50.Qc5 Qb7 51.Ka5+–) 50.Qc4 Qc4 51.Kc4 Kf5 52.d5 (52.a4 Ke6+–) 52...g5 53.d6 (53.Kd4 g4 54.d6=) 53...Ke6= 54.d7 (54.Kc5 Kd7 55.a4 g4=) 54...Kd7 55.Kd4 g4 56.Ke3 Kc6 57.Kf4 Kb5 58.Kg4 Ka4 59.Kf4 Ka3 60.b5 Ka4 61.Ke3 Kb5 62.Kd2 Kb4 63.Kc2 Ka3 64.Kb1 ½–½. Lujan,Maria Carolina – Farhat,Barbara, Pan American–ch, 1996.

    6.Nf3 Bg4 7.Qb3 Ne7 (7...e4 8.Nd4 Be5 9.cd5 cd5 10.d3 Bd4 11.Bd4 Nc6 12.de4 de4 13.Bb5 Nge7 14.Qc2 0-0+=) 8.Nc3 (8.cd5 cd5 9.Nc3 Be6 10.d4 Nbc6 11.de5 fe5 12.Rd1 Bf7 13.Ng5 Bg8 14.Nb5 Bb8+=) 8...Be6 (8...e4 9.Nd4 Be5 10.h3 Bd4 11.hg4 Bc3 12.Qc3 Nd7 13.g5 Ne5 14.gf6 gf6+=) 9.d4 (9.Be2 Qd7 10.d4 ed4 11.Nd4 dc4 12.Bc4 Bc4 13.Qc4 Nd5 14.Rd1 Be5+=) 9...e4 (9...Nd7 10.cd5 Nd5 11.Ne4 Bc7 12.de5 fe5 13.Qc2 Bf5 14.Bd3 a5+=) 10.Nd2 (10.cd5 cd5 11.Nd2 Qd7 12.Nb5 0-0 13.Nd6 Qd6 14.Be2 Nd7+=) 10...Kf7 (10...f5 11.Be2 Nd7 12.0-0 Qb8 13.f4 g5 14.c5 Bc7+=) 11.Be2 f5 (11...Nd7 12.f3 ef3 13.Nf3 Re8 14.0-0 Kg8+=) 12.f3 (12.b5 Nd7 13.c5 Bc7 14.0-0 Qb8+=) 12...ef3 (12...Nd7 13.0-0 Nf6 14.c5 Bb8+=) 13.Nf3 dc4 14.Bc4 Nd5 (14...Bc4+=) 15.e4 (15.0-0 Re8+=) 15...fe4 16.Ne4 (worse is 16.Nd5 cd5 (worse is 16...ef3 17.Qf3 Ke8 18.Qe4+/–) 17.Bd5 Bb4 18.Qb4 Bd5 19.Ne5 Ke8+=) 16...Re8 17.0-0 Kg8 18.Rae1 (18.Nfg5 b5 19.Qf3 bc4 20.Ne6 Re6 21.Qf7 Kh8 22.Qe6 Bf4+–) 18...b5+= 19.Nd6 Qd6 20.Re6?? (better is 20.Bd5 cd5 21.Qd3+/–) 20...Qe6 (20...Re6 21.Bd3-/+) 21.Re1 (21.Bb5 Qe3 22.Qe3 Ne3-/+ (worse is 22...Re3 23.Bc4 Nd7 24.Ne5=)) 21...Qe1-/+ (worse is 21...bc4 22.Re6 cb3 23.Re8 Kf7 24.Rh8+/–) 22.Ne1 bc4 (22...Re1 23.Bf1 Nd7 24.Kf2-/+) 23.Qg3 Nd7 24.Nf3 Re6 (24...Re2 25.Bc1 Rae8 26.Qd6-/+) 25.Ng5 (25.Ne5 Rae8+=) 25...Rg6 (25...Re2 26.Qf3 Re7 27.Qf2-/+) 26.Qh3 Rg5 (26...Nf8 27.Bc1-/+) 27.Qd7 (27.Qe6!? Kh8 28.Bc1+=) 27...Rg6+= 28.b5? (28.Bc1 a6+=) 28...Ne3 (better is 28...Rf8!? 29.h3 Ne3–+) 29.Bc1-/+ Ng2 (worse is 29...Rg2 30.Kh1 Re2 31.Be3 Re3 32.bc6+/–) 30.bc6 Nf4?? (better is 30...Rf8 31.Qd5 Kh8 32.Qg2 Rg2 33.Kg2 Kg8-/+) 31.Kh1 (better is 31.Kf2 Ne6 32.c7 Nc7 33.Qc7+–) 31...Ne6?? (better is 31...Ne2 32.Qd5 Kh8+/–) 32.c7+– Nc7 33.Qc7 Re8 34.Qc4 Kh8 35.Be3 h6 36.Qd3 Rge6 37.Bf4 1–0. Pandurevic,Miro (2280) – Osolin,Bojan (2140), Riviera IM, Opatija CRO (12), 2003.

    6.Nf3 Bg4 7.cd5 cd5 8.h3 Be6 9.Nc3 Ne7 10.Nb5 0-0 11.d4 e4 12.Nd2 a5 13.Qb3 a4 14.Qa2 Qb6=.

    6.Nf3 Bg4 7.h3 Bh5 8.Be2 Nh6 (better is 8...dc4!? 9.Bc4 b5 10.Bg8 Rg8+=) 9.cd5+= cd5 10.Nc3 0-0 11.Nd5 Bf7 12.Nc3 Nc6 13.0-0 f5 14.Nb5 e4 15.Nfd4 Be5 16.Nc6 bc6 17.Nd4 Qh4 (17...Qd6 18.Rc1 Bd5 19.d3+/–) 18.f4 ef3?? (better is 18...Bf6+/–) 19.Nf3+– (19.Nf3 Bh2 20.Kh2+–; 19.Nc6?? fe2 20.Qe2 Bb2–+; 19.Bf3 Qg3 20.Rc1 Ng4=; 19.Rf3?! Bd5+/–) 1–0. combijack (1810) – kordelero (1760), gameknot.com, 2011.

    6.h3 Be6 7.Qc2 (7.cd5 cd5 8.d4 Nc6= (8...Nd7 9.Nc3 Ne7 10.de5 Be5 11.Nf3 0-0 12.Bd3 a5 13.Qc2=) 9.de5 fe5 10.Nf3 a6 11.Nc3 Nf6 12.Ng5 Bf5 13.g4=; 7.c5 Bc7 8.d4 (8.Be2 Ne7 9.Nf3 0-0 10.0-0 Qe8 11.Qc2 Nd7 12.Nc3 b6 13.Rfc1+=; 8.Nf3 Ne7 9.Be2 0-0 10.0-0 Nd7 11.d4 Qe8 12.Nc3 e4 13.Nd2+=) 8...e4 9.b5 Ne7 10.Qh5 g6 11.Qe2 Bd7 12.Nc3 Ba5 13.bc6=) 7...Ne7+= (7...Nd7 8.c5 (8.d4 Ne7 9.Nd2 0-0 10.Rd1 e4 11.c5 Bc7 12.b5 f5 13.Qb3+=; 8.Nf3 Nh6 9.Be2 dc4 10.Bc4 Bc4 11.Qc4 a5 12.b5 Nb6 13.Qe6+=) 8...Bc7 9.Nf3 Qe7 10.d4 Nh6 11.Be2 e4 12.Nfd2 f5 13.b5+=; 7...Nh6 8.Nf3 (8.Be2 Bf5 9.d3 dc4 10.Qc4 b5 11.Qb3 a5 12.Nf3 ab4 13.Nh4+=; 8.c5 Bc7 9.Nf3 Nf5 10.Be2 Nd7 11.0-0 0-0 12.e4 Ne7 13.Nc3=; 8.d4 0-0 9.Nd2 Nd7 10.e4 a5 11.c5 Be7 12.Ngf3 ab4 13.ab4+=; 8.cd5 cd5 9.Bd3 f5 10.Bb5 Nd7 11.Nf3 Rc8 12.Nc3 a6 13.Be2+=) 8...Bf5 9.Qb3 Be4 10.Nc3 Bf3 11.gf3 dc4 12.Bc4 Nd7 13.Ne4=) 8.Nf3 (8.Be2 Bf5 9.d3 dc4 10.Qc4 a5 11.b5 cb5 12.Qb5 Bd7 13.Qc4+=; 8.c5 Bc7 9.Nf3 0-0 10.Be2 b5 11.0-0 a5 12.d3 ab4 13.ab4+=; 8.d4 Bf5 9.Qd2 Nd7 10.cd5 Nd5 11.Nc3 e4 12.Qc2 Qe7 13.Rc1+=; 8.d3 b6 9.Be2 0-0 10.Nf3 Nd7 11.d4 e4 12.Nfd2 Qe8 13.0-0+=) 8...Qd7 (8...Nd7 9.c5 Bc7 (9...Bb8 10.Be2= Bf5 11.d3 e4 12.de4 Be4 13.Qd1=) 10.Be2 b6 11.d4 0-0 12.0-0 Qe8 13.Nc3+=) 9.d3 (9.c5 Bc7= 10.Be2 Bf5 11.d3 Na6 12.Nbd2 0-0 13.e4=) 9...Ng6 (9...Na6 10.d4 e4 11.Nfd2= b5 12.c5 Bc7 13.Bc3=; 9...0-0 10.c5 Bc7 11.Be2 b5 12.0-0 a5 13.ba5=) 10.Nbd2 (10.Be2 0-0 (10...Na6= 11.Nc3 0-0 12.c5 Bc7 13.0-0=) 11.c5 Bc7 12.0-0 b5 13.a4=) 10...0-0 11.Be2 (11.c5 Bc7 12.Be2 b5 13.0-0=) 11...Rc8 (11...b5 12.0-0 a5 13.Qc3=) 12.c5 Be7 (12...Bc7 13.0-0=) 13.Rc1 (13.0-0 Rf8=) 13...Na6 14.g4 (14.h4!?=) 14...Nc7 15.e4 (15.Nb3 Rf8+=) 15...Nf4 (15...a5 16.d4 ab4 17.ab4 ed4 18.Nd4+=) 16.Bf1 (16.g5 d4+=) 16...Rd8 (16...d4 17.g5+=) 17.Rd1 (17.g5 d4+=) 17...de4 (17...d4 18.Nc4+=) 18.de4 Nd3 (18...Nb5 19.Nc4 Qe8 20.Rd8 Rd8 21.a4+=) 19.Qd3 (19.Bd3 Qd3 20.Qd3 Rd3+=) 19...Qd3 20.Bd3 Rd3 21.Ke2 Rad8 22.Ne1 R3d7 23.Nef3 (23.Ng2 b6 24.cb6 ab6+=) 23...Bf7-/+ 24.g5? (24.h4 Ne6 25.Be5 fe5 26.Ne5 Rd4–+) 24...Ne6 (better is 24...Bh5!? 25.Rhg1 Ne6 26.gf6 Bf6–+) 25.Nb1?? (25.Be5 fe5 26.Ne5 Nf4 27.Kf3 Rd2 28.Rd2 Rd2 29.Nf7 Kf7 30.Kf4 Rf2 31.Kg4 Rg2 32.Kf3–+) 25...Nf4–+ (25...Nf4 26.Kf1 Rd1 27.Ne1 Rb1–+) 0–1. Nilsson,Jonas – Nielsen,JeH (2100), 25th Politiken Cup, Copenhagen DEN (5), 2003.

    6.h3 Ne7 A) 7.cd5 A1) 7...Nd5 8.d4 (8.e4 Nf4 9.d4 ed4 10.Bd4 a5 11.ba5 Qa5 12.Bc3 Qd8 13.Ne2=) 8...ed4 9.Bd4 0-0 10.Bc4 Be6 11.Nc3 a5 12.b5 Nf4 13.Qb3=; A2) 7...cd5 8.Nc3 (8.Qh5 g6 9.Qf3 0-0 10.Nc3 e4 11.Qd1 a5 12.b5 Be6 13.Nge2=; 8.d4+= 0-0 9.de5 fe5 10.Nf3 e4 11.Nd4 Nbc6 12.Nc3 Be5 13.Nce2+=) 8...0-0 9.d4 ed4 10.Qd4 Nbc6 11.Qd2 Be6 12.Nge2 Be5 13.f4=; B) 7.Qh5 g6 8.Qd1 (8.Qf3 Nd7 9.cd5 cd5 10.Nc3 e4 11.Qd1 a5 12.Nb5 Be5 13.Be5=; 8.Qe2 Bf5 9.c5 Bc7 10.Nf3 0-0 11.d4 e4 12.Nfd2 b6 13.Nc3=) 8...0-0 9.Be2 b6 10.d4 ed4 11.Bd4 c5 12.Bc3 Be6 13.Bf3=; C) 7.c5 Bc7 8.Be2 (8.Nf3 b6 9.d4 e4 10.Nfd2 0-0 11.Be2 bc5 12.dc5 a5 13.b5=; 8.d4 0-0 9.de5 fe5 10.Nf3 e4 11.Nd4 Nf5 12.Ra2 Nd4 13.Qd4+=; 8.Qh5 g6 9.Qf3 Nf5 10.d3 Be6 11.Nd2 Nd7 12.Qe2 b6 13.d4+=; 8.Nc3 0-0 9.Nf3 Be6 10.d4 e4 11.Nd2 f5 12.Qb3 Rf6 13.b5+=) 8...Nd7 9.Nf3 b6 10.d4 0-0 11.0-0 Qe8 12.Nc3 e4 13.Nd2=; D) 7.d4 0-0 8.de5 (8.cd5 cd5 9.de5 Be5 10.Nc3 Bf5 11.Nf3 Nbc6 12.Bd3 d4 13.ed4=) 8...fe5 9.cd5 Nd5 10.Nd2 Qe7 11.e4 Nf6 12.Ngf3 b5 13.Qb3=.

    6.Nc3 Be6

    7.d3 Ne7 8.Nf3 0-0 9.cd5 cd5 10.Nb5 a6 11.Nd6 Qd6 12.Be2 Nbc6 13.0-0 Ng6 14.Qd2 Rad8 15.Rfc1 (15.Rac1 Rc8=) 15...h6 (15...d4 16.ed4 ed4 17.Re1=) 16.a4 (16.d4 e4 17.Ne1 Rc8=) 16...Qb8 (better is 16...Qb4!? 17.Bc3 Qe7+=) 17.b5+= Nce7 18.Ba3 f5? (18...ab5 19.ab5 Rc8 20.d4+=) 19.Nh4 (19.ba6 ba6 20.d4 e4+–) 19...Rf7 (19...Rf6 20.ba6 ba6 21.d4 ed4 22.Ng6 Ng6 23.Qd4+/– (worse is 23.Ba6 de3 24.fe3 f4+=)) 20.Bh5 (20.Ng6 Ng6 21.ba6 ba6+/–) 20...Nh4 (20...Rf6!?+/–) 21.Bf7+– Kf7 22.Qb4?? (better is 22.Be7 Nf3 23.gf3 Ke7 24.d4+–) 22...Nhg6-/+ 23.Rab1 Qa7 (23...ab5 24.Qb5 Bd7 25.Qb3-/+) 24.Rc7+= Rd7 25.Rbc1 (25.Rd7 Bd7 26.Qd6 b6=) 25...Qb6-/+ 26.Rd7 Bd7 27.ba6 (better is 27.d4!? f4 28.ef4 Qd4 29.fe5 Qb4 30.Bb4 ab5 31.Rc7-/+) 27...Qb4–+ 28.Bb4 ba6 29.a5 (29.Ra1 f4–+) 29...Bb5 30.Rd1 Nc6 31.Bc3 d4 32.ed4 (32.Be1 Nge7–+) 32...ed4 33.Bb2 (33.Bd2 Nge5–+) 33...Nf4 34.Ba3 (34.f3 Nd3 (worse is 34...Bd3 35.Kf2–+) 35.Rb1 Ke6–+) 34...Nd3 35.g3 Na5 36.Kg2 Ke6 37.f4 g5 38.Kf3 (38.Bf8 gf4 39.Bh6 fg3 40.Kg3 Kd5–+) 38...g4 (38...g4 39.Kg2 Nb3–+) 0–1. Gucagaite,Gabriele (1630) – Butvilaite,Berta Reja, LithuanianChampionshipG16, 2014.

    7.cd5 cd5 8.Nb5 Be7 9.f4 a6 10.Nc3 Nc6 11.Bd3 e4 12.Bc2 Nh6 13.Bb3 0-0 (better 13...Qd7!?=+) 14.Ne4+= Qd7 15.Ng3 (15.Nc5 Bc5 16.bc5 Qe7+/-) 15...Rfe8 (15...b5 16.N1e2+=) 16.Nf3 Nf5 17.Nf5 Bf5 18.0-0 Bd3 19.Rf2 (19.Re1 Kh8+/-) 19...Rad8 (19...a5 20.ba5 Na5 21.Bc2 Bc2 22.Qc2=) 20.Nd4 Nd4 21.Bd4 (worse 21.ed4 Qf5=) 21...Rc8 22.Qf3 Bc4 23.Bc4 dc4 24.Qh5 (24.d3 cd3 25.Rd1 Qc6+/-) 24...b5 25.Rf3 Bf8 26.Rg3 Qf7 27.Qf5 Kh8 28.Rh3 Qg8 (28...h6 29.d3+/-) 29.Rf1 Rcd8 (29...h6 30.Qc2+/-) 30.Bc3 (30.Rff3 h6+/-) 30...Rd5 (30...h6 31.e4+/-) 31.Qg6 (better 31.Rh7! Qh7 32.Qd5+-) 31...Re6 32.Rff3 f5?? (32...Red6+/-) 33.Qg5 (better 33.Rh7! Qh7 34.Qe6+-) 33...Be7+= 34.Qh5 Bf6 35.e4 Rd8 (better 35...Bd4 36.Bd4 Rd4 37.Qf5 Rf6+=) 36.e5+- Be7 (36...g6 37.ef6 gh5 38.f7 Qg7 39.Re3 Qc3 40.dc3 Re3 41.Re3+/-) 37.Qf5 g6 38.Qg4 Rf8 (38...Bf8 39.f5 gf5 40.Qf5+-) 39.f5 (better 39.Rh6!? Rf5 40.Rfh3+-) 39...gf5 40.Qg8 Kg8 41.Rh5 f4 42.Kf2 Kg7 43.Rfh3 h6 44.Kf3 1-0. FeegLood (2505) - UPEA (2335), lichess.org, 2015.

    7.cd5 cd5 8.Qh5 g6 9.Qf3 e4 10.Qd1=.

    7.Nf3 Ne7 8.cd5 cd5 9.Bb5 Nd7 10.d3 0-0 11.Qb3 Nb6 12.0-0 a6 13.Ba4 Na4 14.Qa4 b5 15.Qc2 Rc8 16.Qe2 Bb8 17.Nd2 e4 18.de4 Rc3-/+ 19.Bc3 Qc7 20.Nf3? de4–+ 21.Ne5? fe5 22.Rac1? Qb7 23.Rc2? Nd5 ½–½. wlittle (2165) – kennyy (2585), net–chess.com, 2004.

    7.c5 Bc7

    8.d4 ed4 9.ed4 Ne7 10.Bd3 0-0 11.Qc2 f5 12.Nf3 =+.

    8.d4 ed4 9.ed4 Ne7 10.Bd3 0-0 11.Qc2 h6 12.Nf3 Bg4 13.Nd2 Re8 14.0-0 Nd7 15.h3 Be6 16.Rae1 Bf7 17.Nf3 (17.b5 cb5 18.Nb5 Bf4+=) 17...Rc8 (17...Bh5 18.Nd2+=) 18.a4 (18.Bh7 Kh8+=) 18...b6 (18...Bh5 19.Nd2+=) 19.Re2 (19.Bh7 Kh8+=) 19...Bh5 20.Bh7 (20.Re3 Bf4 21.Re6 Bf3 22.gf3 Nf8=+) 20...Kh8= 21.g4 Bf7 22.Bd3 Bf4 23.Rfe1+= Rc7 24.a5 Rc8 25.ab6 ab6+= 26.Bc1 Bc1 27.Qc1 Ra8 28.Qc2 Ra7 29.Re3 Ra3 30.Qb2 Ra8 31.R3e2 Ra7 32.Qc2 Ra3 33.Re3 Ra7 34.Kg2 Ra8 35.Nd1 Ra1 36.Qe2+/– Ng8 37.Re8 Qe8 38.Qe8 Be8 39.Re8 Rd1 40.Bf5 Nc5 41.bc5 b5 42.Be6 b4 43.Bg8 g6 44.Bd5 Kg7 45.Bc6 f5 46.Re7 Kf6 47.Rh7 fg4 48.hg4 h5 49.Bd5 Rg1 50.Kg1 b3 51.Ne5 h4 52.Rf7 Kg5 53.f4 Kh6 54.g5 Kh5 55.Bf3 1–0. Mephisto Mondial – REXChess, 1994.

    8.d4 ed4 9.ed4 Ne7 10.Bd3 0-0 11.Qc2 h6 12.Nf3 Bg4 13.Nd2 Re8 14.0-0 Nd7 15.h3 Bh5 16.Rae1 b6 (16...Bf4 17.Ne2 Bc7 18.Ng3+=) 17.Re6 Bf7 18.Re2 Bh5 19.Re3 (19.g4 Bf7+=) 19...Bf4 20.Re6 Bf7 21.Re2 Bh5 22.g4 Bf7 23.Rfe1+= a5 24.Nf3 ab4= 25.ab4 Kh8 26.Bc1+= Bc1 27.Qc1 Ra7 28.Qc2 Ra3 29.Re3 Ra8 30.Na4 Ra7 31.Kg2 Bg8? 32.Bg6+– Ng6 33.Re8 Qc7 34.Qg6 Nf8 35.Rf8 Qd7 36.Ree8 Qe8 37.Qe8 Kh7 38.Rg8 Rf7 39.Qf7 bc5 40.Qg7 1–0. Mephisto Mondial – REXChess, 1994.

    8.d4 Ne7 9.de5 fe5 10.Nf3=.

    8.Nf3 Ne7 =.

    6.Nc3 Ne7

    7.Qb3 Be6 8.d4 e4 (better 8...ed4!? 9.ed4 0-0=+) 9.cd5+/- cd5 10.Nb5 (better 10.Ne4 Nbc6 11.Rc1+/-) 10...0-0 11.Ne2 a6 12.Nd6 Qd6 13.Nf4 Bf7 14.Be2 Nd7 15.Rc1 Rac8 16.0-0 g5 17.Nh3 Be6 18.Rc8 Rc8 19.Rc1 Rc1 20.Bc1 Ng6 21.Qc3 Nb6 22.Qc5 Qd8 23.Bh5 Ne7 24.Bd2?? (better 24.b5=+) 24...Nc4-+ 25.Bc1 (25.Qa7 Qc8 26.Qc5 Qc5 27.bc5 Nd2 28.Bd1-+) 25…b6 (25...b6 26.Qc4 dc4-+) 0-1. cipiripi (2440) - HawaiianDragon (2445), Rated Blitz game, lichess.org, 2016.

    7.Qb3 Be6 8.cd5 cd5 9.Nb5 Nbc6 10.Nd6 Qd6=+ 11.Nf3 0-0 Black prepares d4 12.Be2 Kh8 (12...a5 13.0-0=+) 13.0-0= d4 14.Bc4 (14.Qd3 Rac8=) 14...Bc4 15.Qc4 Rac8 16.Qb3 Qd5 17.Qd5 Nd5 18.Rfc1 de3 19.de3 Rfd8 20.Kf1 Kg8 21.Ke2 Kf7 22.Rd1 Nce7 23.Rac1 Rc1 24.Rc1 Rc8 25.Rc8 Nc8 26.g3 Ncb6 27.e4 Nc7 28.Kd3 Ke6 29.Nd2 Nb5 30.Nb3 Nd7 31.a4 Nd6 32.b5 (32.g4 g6=) 32...b6 33.Ba3 Nb7 34.Bb4 Nb8 35.Kc4 (35.Bd2 Nd7 36.Be3 Nd6=) 35...Nd6 36.Bd6 Kd6 37.f4 a6?? (37...ef4 38.gf4 Nd7 39.h4=) 38.f5?? (better 38.ba6 Na6 39.Kb5+-) 38...ab5= 39.ab5 Nd7 (39...h5 40.Kd3=) 40.h3 (40.g4 Nf8=) 40...Nf8 41.g4 Nd7 42.Kb4 Nf8 43.Kc4 (43.Nc1 g5=) 43...Nd7 44.Kb4 Nb8 (44...Nf8 45.Nc1=) 45.Kc4 (better 45.Nc1=) 45...g6 (45...Nd7 46.h4=) 46.Kb4 (better 46.fg6!? hg6 47.h4+/-) 46...Nd7 47.Kc4 g5 48.Kb4 Nf8 (48...Kc7 49.Kc3=) 49.Kc4 h6 (49...Nd7 50.Kb4=) 50.Kb4 (better 50.Nd2+=) 50...Nh7?? (50...Nd7 51.Kc4=) 51.Kc4 (better 51.Nd2+-) 51...Nf8= 52.Kb4 Nh7 53.Nd2 Nf8 54.Nc4 Kc7 55.Ne3 Nd7 56.Nd5 (56.Kc4 Kb7 57.Kd5+-) 56...Kd6?? (better 56...Kd8+=) 57.Kc4+- Nc5 58.Nf6 Na4 59.Ng8 (better 59.Nd5!? Nc5 60.Nb6 Ne4 61.Nc8 Kc7+-) 59...Nb2 60.Kc3 Nd1 61.Kd2 Nf2 62.Ke3 Nh3 63.Nh6?? (better 63.Nf6+-) 63...Ng1?? (better 63...Ke7 64.f6 Kf6=) 64.Nf7+- Kc5 65.Ne5 Kb5 66.Nf3 (66.f6 Nh3 67.f7 Nf4 68.f8Q Ka5 69.Nc6 Kb5 70.Nd4 Kc4 71.Qg8 Kc5 72.Qc8 Kb4 73.Qc6 Ng2 74.Kd2 Ka3 75.Qc3 Ka4 76.Qb3 Ka5 77.Qb5) 66...Nh3 (66...Nf3 67.Kf3 Kc6+-) 67.f6 Nf4 68.Ng5 (68.f7 Ng6 69.Kd4 Nf8+-) 68...Ng6 69.e5! Kc5 (69...Ne5 70.f7 Passed pawn) 70.Ke4 b5 71.Kf5 b4 72.Kg6 b3 73.f7 b2 74.f8Q Kd4 75.Qb8 (75.Qf5 b1Q 76.Qb1 Kc5 77.e6 Kd6 78.Qf5 Kc6 79.e7 Kb6 80.e8Q Kb7 81.Qc5 Ka6 82.Qec6) 75...Ke3 76.Qb2 (76.Qb2 Kd3 77.e6 Kc4 78.e7 Kd5 79.e8Q Kc5 80.Nf3 Kc4 81.Qeb5) 1-0. pacalmisu (2315) - AntoineBriet (2535), Rated Blitz game, lichess.org, 2016.

    7.Qb3 Be6 8.Nf3 0-0 9.d4 e4 10.Nd2 f5 11.cd5 cd5 12.f3 (12.Nb5 Nbc6=) 12...Qd7 (better 12...ef3 13.Nf3 Nbc6=) 13.0-0-0 (better 13.Nb5!?=) 13...Nbc6 (13...f4 14.Bb5 Qc8 15.ef4-+) 14.Kb1 Kh8 (14...ef3 15.Nf3 Rac8 16.Bd3-/+) 15.Rc1 (15.b5 Nd8-/+) 15...Rac8 16.Be2 (16.b5 Na5 17.Qa4 Qd8-/+) 16...Bb8 (better 16...f4!? 17.Nd1 Nf5 18.fe4 fe3 19.Ne3 Ne3 20.Qe3 Bf4-/+) 17.Na4=+ b6 18.Ba6 Rc7 19.Bb5 (19.Nc3 Nd8=+) 19...Qd6 20.Be2 Rfc8 (20...f4!? 21.Nc3 Rcc8 22.fe4 fe3-+) 21.Nc3 Qd8 (21...Nd8 22.Ba6 Nb7 23.Nb5 Rc1 24.Rc1 Rc1 25.Bc1=+) 22.Nb5 (better 22.Ba6+=) 22...Rd7 23.Rc2 (23.fe4 fe4 24.Nc3 Qg8=+) 23...a6 (23...f4 24.Ne4 Bf5-/+ (worse 24...de4 25.Qe6 a6 26.fe4 ab5 27.d5+/-)) 24.Nc3=+ b5 25.Rhc1 Bg8 26.Qa2 (26.g3 Rdc7-/+) 26...Rdc7 (26...Bh2!? 27.Qa1 Rdc7-/+) 27.Nb3 Ba7 28.Nc5 (better 28.Qa1!?-/+) 28...Bc5-+ 29.dc5 (better 29.bc5 f4! 30.Rf1-+) 29...d4 30.Nd5 (30.Qa1 dc3 31.Bc3-+) 30…Bd5 (30...Bd5 31.Qa1 d3 32.Bg7 Kg8 33.Bd3 ed3-+) 0-1. pacalmisu (2420) - AntoineBriet (2440), Rated Blitz game, lichess.org, 2016.

    7.Nf3 0-0 8.d4 dc4 (better 8...e4 9.Nd2 f5=) 9.de5 Be5 10.Bc4 Kh8 11.Ne5 Qd1 12.Rd1 fe5 13.Ne4 Bf5 14.Nd6 Bg6 (14...b5 15.Bb3 e4 16.Nf7 Kg8 17.g4+-) 15.Be5 (15.Nb7 e4+-) 15...Nd7 16.Bb2 b5 17.Bb3 Nf6 18.0-0 (18.f3 Rad8+-) 18...Ned5 (18...a5 19.Rd4+-) 19.Rc1 Rfd8 (19...Ne7 20.e4!+-) 20.Nb7 (20.Rc6!? a6+-) 20...Rdc8 21.Na5 Ne7 22.Rc5 (22.Rfd1 Be4+-) 22...Ne4 23.Re5 Nd5 (23...Rc7 24.Rc1+-) 24.Bd5 (24.Nc6!? Ndc3 25.Ne7 Rc7 26.Ng6 hg6+-) 24...cd5 25.Re7 (25.Rd5 Rc2 26.Bd4 Rac8+-) 25...Nf6 26.Bf6 gf6 27.Re6 Rc3 28.Rf6 Ra3 29.f4 (better 29.Rd1+/-) 29...Be4= 30.Rc1 (30.g3 Kg7 31.Rd6 Re3=) 30...Rg8 (30...Ra2 31.g3=+) 31.g3= Ra2 (31...Re3 32.Kf2 Rf3 33.Ke1 Ra3=) 32.Rf7 (better 32.Rh6!?=) 32...Rg2=+ 33.Kf1 Rh2 34.Ke1? (34.Rcc7 Rh3 35.f5 Rgg3 36.Rf8 Rg8 37.Rg8 Kg8-/+) 34...Rh1?? (better 34...Bc2 35.Rc2 Rc2-+) 35.Kd2-/+ Rc1 36.Kc1 Rg3 37.Kd2 h5 38.Ra7 h4 39.Nb3? (39.Ra8 Kg7 40.Ra7 Kh6 41.Ra6 Bg6 42.Nb7-+) 39...h3 40.Nd4 h2 41.Ra1 Rg1 42.Ra8 Kh7 43.Ra7 Kg8 44.Ra8 Kf7 (better 44...Kg7!? 45.Ra7 Kh6 46.Ra6 Kh5 47.Ra8-+) 45.Ra7 Ke8 (45...Kg6 46.f5 Kh6 47.Ra8 Rg2 48.Kc3-+) 46.Ra8 Kd7 47.Ra7 Kc8 (47...Kd8 48.Ra8 Ke7 49.Rh8-+) 48.Ra8 Kb7 49.Rh8 h1Q 50.Rh1 Rh1 51.Nb5 Rb1 52.Kc3 Kb6 53.Nd6 Re1 (better 53...Rd1!? 54.Ne4 de4 55.Kc4-+) 54.Kd4 Rd1 (54...Bg2 55.Kd3-+) 55.Ke5 Rb1 (55...Bg2 56.f5 Rd3 57.f6 Re3 58.Kd4-+) 56.f5 (56.Ne4 de4 57.Ke4 Rb4 58.Kd5-+) 56...Rb4 57.f6 Bg6?? (57...Kc6!? 58.f7 Rb8 59.Ke6-+) 58.f7? (better 58.Kd5 Rb1 59.e4=) 58...Bf7!-+ 59.Nf7 Re4 (better 59...Kc5 60.Ng5 Rg4-+) 60.Kd5=+ Re3 61.Ne5 Kb5 62.Kd4 Re1 63.Nd3 Rd1 64.Kc3 Rh1 65.Nb2 Kc5 66.Kc2 Kb4 67.Nd3 Kc4 68.Nc1 Rh2 69.Kb1 Kc3 70.Na2 Kb3 71.Nc1 Ka3 72.Nd3 Rd2 73.Nc1 Rd5 (73...Kb4!?-+) 74.Kc2-/+ Rc5 (74...Rc5 75.Kd2 Rc8=+) 0-1. black_bishop_88 (2705) - KSVKSV (2195), Hourly SuperBlitz Arena, lichess.org, 2020. (=1.a3 d5 2.b4 e5 3.Bb2 f6 4.e3 Bd6 5.c4 c6 6.Nc3)

    7.Nf3 0-0 8.Be2 Be6 9.d3 (9.c5 Bc7=) 9...Nd7 (9...b6 10.0-0=) 10.Qc2 (10.c5 Bc7=) 10...Rc8 (10...b6 11.cd5 cd5 12.0-0=) 11.c5 Bc7 12.h3 (12.0-0 Rb8=) 12...b6+= 13.d4 (13.cb6 ab6 14.0-0 Qe8+=) 13...bc5 (13...e4 14.Nd2+=) 14.dc5= d4 (better is 14...Rb8=) 15.ed4+/– ed4 (15...Nf5 16.Bd3 g6 17.0-0+–) 16.Nd4+– Bf7 17.0-0 Nc5 18.Rad1 (18.bc5?! Qd4 19.Nb5 Qh4 20.Nc7 Rc7+=) 18...Nd7 (18...Bg6 19.Bc4 Nd5 20.Nc6+–) 19.Bd3 (better is 19.Bg4 Nd5 20.Ne6 Be6 21.Be6 Kh8 22.Qf5+–) 19...Bg6? (better is 19...h6+/–) 20.Bg6 (20.Ne6 Qe8 21.Nf8 Nf8+–) 20...hg6 (20...Ng6 21.Ne6 (21.Nc6?! Bh2 22.Kh2 Rc6+/–) 21...Qe7 22.Nf8+–) 21.Ne6 Qe8 22.Nf8 Kf8 23.Rfe1 (23.Ne4 a5+–) 23...Ne5 (23...a5 24.Ne4+–) 24.Ne4 Nd5 (24...a5 25.Be5 Be5 26.Nd6 Bd6 27.Rd6 ab4 28.Qd2 ba3 29.Rd7+–) 25.Qc5 Kg8 26.Nd6 Bd6 27.Qd6 Rd8 28.Qc5 (28.Be5?! Rd6 29.Bd6 Qc8+/–) 28...Qe6 (28...a6 29.Qc1 Qe6 30.f4 Nf3 31.gf3 Qh3 32.Rd2+–) 29.Be5 (29.f4 Nf3 30.gf3 Qh3+–) 29...fe5 30.Re4 Rf8 (30...a6 31.Rde1+–) 31.Rde1 Rf5 32.Qa7 g5 (32...Kh7 33.Qb8 Nf6 34.Rh4 Rh5 35.Rh5 gh5 36.Qe5+–) 33.Qb8 (33.Qb8 Rf8 A) worse is 34.Re5 Qf7 (34...Rb8?? 35.Re6 Ra8 36.Re8 Re8 37.Re8 Kf7 38.Re5+–) 35.Qd6 Qf2 36.Kh1 Rf6 37.Re8 Kh7+–; B) 34.Qe5+–; 33.Re5 Re5 34.Qb8 Kf7 35.Qe5 Qe5 36.Re5 Kf6 37.Rd5 cd5+–) 1–0. Quast,Michael (2215) – Vonach,Bernhard, Bayern–chI Bank Hofmann 2nd, 1998.

    7.Nf3 Be6 8.cd5 cd5 9.Nb5 0-0 10.Nd6 Qd6 11.Be5?? (better 11.d4 e4 12.Nd2=) 11...fe5-+ 12.Ne5 (12.d4 e4 13.Nd2-+) 12...Nec6 (better 12...Qe5 13.d4 Qf6-+) 13.Nc6 Nc6 14.d4 0-1. opperwezen (2815) - JannLee (2845), Crazyhouse Weekly, lichess.org, 2016.

    7.Nf3 Be6 8.cd5 cd5 9.Nb5 Nbc6 10.Nd6 Qd6 11.b5 Nd8 12.Be5?? (better 12.Rc1=) 12...0-0?? (better 12...fe5 13.d4 e4-+) 13.Bd6+- Nf5 14.Be7! Ne7 15.h4 (15.Rc1 Bg4+-) 15...Nf5 (15...Nf7 16.d4+-) 16.Nd4 (better 16.Bd3 Ne7+-) 16…Rc8 (16...Rc8 17.Ne6 Ne6+-). opperwezen (2580) - JannLee (2805), lichess.org, 2016.

    7.Nf3 Be6 8.cd5 cd5 9.d3 0-0 10.Be2 a5 11.b5 Nd7 12.d4 e4=+ 13.Nd2 f5 14.Qb3 Kh8 15.g3 Qe8 16.Na4 b6 17.Nc3 Nf6 18.Rc1 Rc8 19.Bf1 g5 20.h4 g4 21.Be2 Qd7 ½–½. RageofKlugman – touchdown, ChessWorld.net, 2006.

    7.Qh5 Kf8 8.cd5 cd5 9.d4 (9.Rc1 a5 10.b5 Kg8+=) 9...ed4 10.ed4 (10.Nd5 Nd5 11.Bc4 Be5 12.ed4 b5 13.Bd5 Qd5 14.de5 Qg2 15.ef6 gf6 16.Qh6 Ke8 17.Qf6 Rf8 18.Qe5 Kd8 19.0-0-0 Nd7+=) 10...a5 11.b5 Bf5 (11...Qe8 12.Qe8 Ke8 13.Bd3=) 12.Be2 (12.Nd5 Ba3 13.Ba3 Qd5+=) 12...Bg6 (12...Qe8 13.Qf3 Qd7 14.Rc1+=) 13.Qf3+= Bc7 14.Bd3 (14.Nh3 Kf7+=) 14...Kg8 15.Nge2 Qd6 (15...Bd3 16.Qd3 Nd7 17.0-0+=) 16.Bc1 Bd3 17.Qd3 Ng6 (17...Nd7 18.Bf4 Ne5 19.de5 fe5 20.Bg5+–) 18.Qf5 Ne7 19.Qg4 f5 20.Qh5 Qg6? (20...Nd7 21.Bf4 Qb6 22.Bc7 Qc7 23.0-0+/–) 21.Qg6+/– hg6 22.Bg5 Bd6 23.h3 Nd7 24.Be7 Be7 25.Nd5 Bd6 26.a4 Re8 27.Rc1 Rh5 28.Kd1 Rg5 29.g3 Rh5 30.Rc2 Bb8 31.Rc3 Bd6 32.Nef4 Rg5 33.Re1 Re1 34.Ke1 Kf7 35.h4 Rg4 36.f3 Rg3+/– 37.Kf2 Nf6 38.Rc7! Bc7 39.Nc7 Ne4? 40.fe4 Rg4 41.Kf3 Rh4 42.e5 g5 43.Nfe6 Kg6 44.Nd5 g4 45.Kf4 Rh3 46.Ng5 Rh1 47.Ne7 Kh5 48.Ne6 g6 49.Nd5 Rh3 50.Ng5 Rd3 51.e6?? Rd4-/+ 52.Ke5 Rd1 53.e7?? Kg5–+ 54.Ne3 Re1 55.Kd4 f4 56.e8Q Re3 57.Qd8 Kh5 58.Qc7 Kg5 59.Qb7 Re1 60.Qd5 Kh4 61.Qd8 Kg3 62.Qa5 Rd1 63.Ke4 f3 64.Qc7 Kg2 65.Qc8 Kg3? 66.Qc3 Rb1 67.Ke3 Kh4 68.Kf2 Kh5 69.Qd4 Kh4 70.b6 Rc1 71.Qd8 Kh5 72.b7 g3 73.Kg3 Rg1 74.Kf4 Rg4 75.Kf3 Ra4 76.b8Q Ra3 77.Ke4 Ra4 78.Kd5 g5 79.Qh2 Rh4 80.Qe8 Kg4 81.Qg1 Kf4 82.Qf7 1–0. Mephisto Mondial – REXChess, 1994.

    7.Qh5 Kf8 8.cd5 Nd5 9.d4 Nc3 10.Bc3+=.

    7.Qh5 g6 8.Qf3 =.

    6.d4 Ne7

    7.Nc3 Be6 8.c5 Bc7 9.de5 fe5 10.Nf3 0-0 11.Ng5 Bf5 12.e4 h6 13.ef5 hg5 14.g4 Nd7 15.h4 (better is 15.Qd2!?+=) 15...gh4+= 16.Qd2 Nf5 (better is 16...a5+=) 17.gf5+/– Rf5? (17...Rf7 18.Rd1 Qf6 19.Bg2+–) 18.0-0-0 (18.Bh3 Rf8 19.Nd5 Nc5 20.bc5 cd5 21.Be6 Kh8 22.Qe2+– (22.Qd5?! Qf6 23.Rh2 Rad8+–; 22.Bd5?! Ba5 23.Bc3 Bc3 24.Qc3 Qd5 25.Rh4 Kg8+=)) 18...Qf6?? (better is 18...e4 19.Qe2 Rf4+=) 19.Nd5!+– cd5 20.Qd5 Kh8 (20...Qf7 21.Qb7 Rf8 22.Rh4+–) 21.Qd7 (21.Qb7 Re8 22.Qc7 Nf8+–) 21...Rd8 (21...Qg5 22.Qd2 Qf6 23.f3 Rf3 24.Qd5+–) 22.Qc7 (better is 22.Rh4! Qh4 23.Qf5+–) 22...Qg5 23.Kc2 Rf2 24.Kb3 (24.Be2 Re2 25.Kb3 Rd1 26.Rd1 Qe3 27.Ka4 b5 28.Ka5+–) 24...Rd1= 25.Qc8 Kh7 26.Qh3 e4 27.Qh4 (27.Bc3 Rf4 28.Be2 Rh1 29.Qh1 a5+=) 27...Qh4-/+ 28.Rh4 Kg6 29.Rg4 Kf5 30.Bh3? (better is 30.Rg7 Rdf1 31.Rb7-/+) 30...Rd3–+ 31.Kc4 (31.Bc3 Rh2 32.Bg2 Kg4 33.Be4 Rg3–+) 31...Rh3 (31...Rb2?! 32.Rg2 Rh3 33.Rb2 Ra3 34.Rf2 Rf3 35.Rd2–+) 32.Rg7 Rb2 33.Rb7 Ra3 34.c6 (34.b5 e3–+) 34...Rc2 35.Kb5 e3 36.c7 (36.Rf7 Ke6 37.Rf1 e2–+) 36...e2 37.c8Q Rc8 38.Rf7 Ke4 39.Re7 (39.Rf4 Ke3 (39...Kf4?!) 40.Re4 Kf3 (40...Ke4?!) 41.Rf4 Kg3 (41...Kf4?!) 42.Rg4 Kf2 (42...Kg4?!) 43.Rg2 Kf3 (43...Kg2?!) 44.Rf2 Kg4 (44...Kf2?!) 45.Rg2 Kf5 46.Rf2 Rf3 47.Re2 Rb8 48.Kc5 Rc3 49.Kd4 Rb3–+) 39...Kd4 (better is 39...Kf3 40.Rf7 Kg3 41.Rg7 Kf4 42.Rf7 Kg5 43.Rf5 Kg4 44.Rf4 Kg3 45.Rg4 Kh2 46.Rg2 Kh3 47.Re2 a6 48.Kb6 Rb8 49.Kc5 Rc3 50.Kd4–+) 40.Rd7 (40.Re4 Kc3 41.Re3 Kb2 42.Re2 Rc2 43.Re1–+) 40...Ke3 41.Re7 Kf3 42.Rf7 Kg2 (better is 42...Kg3 43.Rg7 Kf4 44.Rf7 Kg5 45.Rg7 Kh4 46.Rh7 Kg4 47.Rg7 Kh3 48.Rh7 Kg2 49.Rh2 Kf3 50.Rf2 Kg4 51.Rg2 Kf5 52.Rf2 Rf3 53.Re2 Rb8 54.Ka4–+) 43.Rf2 Kg3 (43...Kf2?!) 44.Rg2 Kf4 (44...Kg2?!) 45.Rg4 (45.Rf2 Rf3 46.Re2 a6 47.Ka4 Rc1–+) 45...Ke3 (better is 45...Kf3 46.Rf4 Ke3 (46...Kf4?!) 47.Re4 Kd3 (47...Ke4?!) 48.Re3 Kd4 (48...Ke3?!) 49.Re4 Kc3 (49...Ke4?!) 50.Rc4 Kd2 (50...Rc4?!) 51.Rc2 Kd3 (51...Kc2?!; 51...Rc2?!) 52.Rd2 Ke4 (52...Kd2?!) 53.Re2 Re3 54.Re3 Ke3–+) 46.Re4 Kd3 (46...Ke4?!) 47.Re2 (47.Rd4 Kc2 (47...Kd4?!) 48.Rd2 Kc3 (48...Kd2?!) 49.Rc2 Kd4 (49...Kc2?!) 50.Rd2 Rd3 51.Re2 Rb8 52.Ka4 Rd1–+) 47...Kd4 (better is 47...Rb8 48.Kc5 Rc3 49.Kd5 Rb5 50.Kd6 Ke2 51.Kd7 Rb6 52.Kd8 Rh3 53.Kd7 Rh7 54.Kc8 Rf6 55.b5 Rf8) 48.Re4 Kc3 (better is 48...Kd5 49.Rd4 Ke5 50.Re4 Kf5 (50...Ke4?!) 51.Rf4 Kg5 52.Rg4 Kh5 (52...Kg4?!) 53.Rg5 Kh4 54.Rh5 Kg4 55.Rh4 Kf3 56.Rh3 Ke4 57.Ra3 Rc7=) 49.Rc4= Kd2 50.Rc2 Kd3 51.Rd2?? (better is 51.Rc8 a6 52.Kb6=) 51...Ke4–+ (51...Kd2?!) 52.Rd4 Ke5 (52...Kd4?!) 53.Re4 Kd6 (53...Ke4?!) 54.Re6 Kc7 (54...Ke6?!) 55.Re7 (55.Rc6 Kb7 56.Ra6 Rd3–+ (56...Ra6?!)) 55...Kb8 56.Re2 Rac3 (56...Ka8 57.Re7–+) 57.Re7 R3c7 58.Re8 (58.Re4–+) 58...Kb7 (better is 58...Rb7 59.Ka4 Re8–+) 59.Ka5 0–1. Kalanyos,Ferenc (2000) – Miovecz,Janos (2095), HUN–chT2 Asztalos, 2007.

    7.de5 fe5 8.cd5 cd5 9.Nf3 Bg4 10.Be2 Nd7 +=.

    7.de5 fe5 8.cd5 cd5 9.Nf3 Bg4 10.h3 Bf3!? 11.Qf3 a5 =.

    7.de5 fe5 8.cd5 cd5 9.Nf3 Bg4 10.h3 (10.Be2 Nd7+=) 10...Bh5 (better is 10...Bf3!? 11.Qf3 a5=) 11.Qa4+/– Qd7 12.Bb5 Nbc6 13.Ne5 Be5 (13...Ne5 A pinning theme 14.Bd7) 14.Be5 0-0 15.Bc3 Qf5 Threatening mate: Qxf2 16.0-0 Qg5 (16...a6 17.Bc6 Nc6 18.Ra2+=) 17.Nd2+/– a6 18.Bd3 b5 (18...Nf5 19.Kh2+/–) 19.Qc2 g6 (19...Bg6!? 20.Bg6 Ng6 21.Bg7 Nb4 22.ab4 Kg7 23.Qc7 Kh6+–) 20.a4 Rac8 (20...Rab8 21.Qb3+–) 21.Qb3 (21.ab5 Nb4 22.Bb4 Rc2 23.Bc2 ab5+=) 21...ba4 22.Ra4 Ne5 (22...Rf7 23.Ra6 Nb8 24.Rd6+–) 23.f4 (23.Ba6?! Bf3 24.Nf3 Nf3 25.Kh1 Nh4+–) 23...Qg3 24.Be5 (24.fe5? Qe3 25.Kh1 Qd3 26.Rf8 Kf8–+) 24...Qe3 25.Rf2 Rc1 (25...Bd1 26.Qd1 Qd3+–) 26.Bf1 Qb6 (26...Qb3 27.Nb3 Rb1 28.Nc5+–) 27.g4 Nc6 (27...Bg4 28.hg4 Re1 29.Nf3+–) 28.Qd5 Rf7 29.gh5 Ne5 30.Qe5 (30.Qe5 Rf5 31.Qe4+–; worse is 30.fe5 Qf2 31.Kh1 Rd1-/+) 1–0. lucya (2105) – lebrad (1850), GameColony.com, 2002.

    7.de5 (7...Be5 8.Be5 fe5 9.Qh5 Ng6 10.cd5 cd5 11.Nc3=). woschkat (2165) – eng (2265), net–chess.com, 2001.

    6.cd5 cd5

    7.Nc3 d4 8.ed4 (8.Nb5 a6 9.Qa4 Nc6 10.Nd6 Qd6+/–) 8...ed4 9.Ne4 Qe7 (9...Be5 10.Nf3 Nc6 11.Ne5 fe5 12.b5+=) 10.Bb5 (10.Qh5 g6 11.Qd5 Bf5 12.Bb5 Nd7 13.Bd7 Bd7+/–) 10...Bd7+= 11.Qe2 f5?? (better is 11...Be5 12.Rc1 Bc6+=) 12.Nd6+– Kd8 13.Qe7 (13.Nb7 Kc7 14.Qe7 Ne7 15.Bd7 Nd7+–) 13...Ne7 (13...Ke7 14.Bd7 Kd7 15.Nf7+–) 14.Nf7 (14…Ke8 15.Nh8 Bb5 16.Bd4+–) 1–0. Wall,Bill – Reno, Internet, 1996.

    7.d4 Nc6 8.de5 fe5 9.b5 Nce7 10.Nf3 Ng6 11.Be2 Nf6 12.0-0 0-0 13.Nc3 e4 14.Nd5 (14.Nd4!?=) 14...ef3=+ 15.Nf6 Rf6 (15...gf6!? 16.Qd5 Kh8 17.Bf3 Qe7=+) 16.Bf6= Qf6 17.Bf3 Ne5 18.Bd5 Kh8 19.Rc1 (19.Qd4 Ng4 20.Qf6 Bh2 (worse 20...Nf6 21.Rfd1+/-) 21.Kh1 A) worse 21...Nf6 22.Bb7 (worse 22.Kh2 Nd5 23.Rac1 Be6+=) 22...Bb7 23.Kh2+/-; B) 21...gf6=) 19...Bg4 20.f3 Qh6?? (better 20...Bf5 21.Rc3 Rd8=) 21.fg4+- Nd3?? (21...Qe3 22.Kh1 Nd3 23.Bb7 Rf8 24.Rf8 Bf8+-) 22.Qd3 Qh2 23.Kf2 Rf8 (23...Qg3 24.Ke2 Qg4 25.Bf3 Qe6+-) 24.Bf3 1-0. muhammadaudii (2150) - avocadointhebox (2110), Rated Blitz game, lichess.org, 2020.

    7.d4 Nc6 8.de5 fe5 9.Nf3 Bg4 10.Be2=.

    7.d4 Ne7 8.Nc3 Be6 9.de5 fe5 10.Nf3 Nbc6 11.Nb5 Nb8?? (better 11...Bb8=) 12.Nd6+- Qd6 13.Be5 Qd7 14.Bg7 Rg8 15.Bd4 Nbc6 16.Rc1 Nf5 17.Bc5 b6 18.b5 (better 18.Bb5 bc5 19.Ne5 Ne5 20.Bd7 Nd7 21.bc5 Rg2 22.c6+-) 18...bc5 19.bc6 Qc6 20.Nd4 (20.g4 Ne7 21.Nd4 Qd6 22.Ne6 Qe6 23.Rc5 Qg4 24.Qg4 Rg4+-) 20...Nd4+/- 21.ed4 c4 22.Qh5 Bf7 23.Qh7 Qe6 24.Kd2 (24.Be2!?+/-) 24...Qf6+= 25.Re1 (25.Ke1 Qd4 26.Qc2 Rb8=+) 25...Kf8 (25...Kd8 26.Kc3 Qf2 27.Re2-/+) 26.Kc3 (better 26.Re5 Qf2 27.Kc3=) 26...Qf2?? (better 26...Rg4 27.f4 Rf4-+) 27.Qh6 (better 27.Bc4 Rc8 28.Rhf1 Rc4 29.Kb3 Qc2 30.Qc2 Rc2 31.Kc2 Rg2 32.Kc3 Rh2 33.Re5+-) 27...Rg7+= 28.Qd6 Kg8 29.Be2?? (29.Re2 Qf5 30.Rb2 Qg5 31.Rb8 Rb8 32.Qb8 Kh7 33.Qa7 Be6-+) 29...Rg6 (better 29...Qe3 30.Kb2 Rg6-+) 30.Qe5=+ Rb6 (better 30...Re8!? 31.Rhf1 Qe3 32.Qe3 Re3 33.Kd2 Ra3 34.Rf7 Kf7=+) 31.Rhf1+= Rb3 (better 31...Qh4 32.g3 Rb3 33.Kd2 Qh6 34.Qf4 Qf4 35.Rf4 Ra3 36.Rg4 Kh8 37.Rh4 Kg7 38.Rg4 Kf8=+) 32.Kc2?? (better 32.Kd2 Rd3 33.Kc2+/-) 32...Bg6 33.Kd2 (33.Qe4 Be4 34.Kd1 c3 35.Rf2 Rb1) 33...Qh4 (33...c3 34.Kd1 Rb1) 34.Qe6?? (better 34.Qd5 Kh7 35.Rf7 Kh6 36.Rc1-+) 34...Kh7-+ 35.Rf7 Kh6 36.Ref1 (36.Rc1 Qd4 37.Ke1-+) 36...Qg5 (36...Qd4 37.Ke1 Rb1 38.Bd1 Rd1 39.Ke2 Qd3 40.Kf2 Rf1) 37.R7f4?? (37.Ke1!? Re3 38.Qf6 Qf6 39.R7f6=+) 37...Rab8 (better 37...c3 38.Ke3 Re8 39.Qe8 Be8-+) 38.R1f3?? (38.h4 Rb2 39.Kd1 Rb1 40.Kd2 R8b2 41.Ke3 Qg2 42.Qg6 Qg6 43.Rf6 Rb3 44.Bd3 Rd3 45.Ke2 Rb2 46.Ke1 Ra3 47.Rg6 Kg6 48.h5 Kh6 49.Rf6 Kh5 50.Rf5 Kg4 51.Rg5 Kg5 52.Kd1 Ra1) 38...Rb2 (38...Rf3 39.Bf3 Qf4 40.Ke1 Rb1 41.Bd1 Qd4 42.Qh3 Kg7 43.Qf3 Qg1 44.Kd2 d4 45.Qb7 Rb7 46.Bc2 Qe3 47.Kd1 Bh5 48.g4 Bg4) 39.Ke3?? (39.Ke1 Re8 40.Qe8 Be8 41.Rh3 Kg7 42.Rg3 Qg3 43.hg3-/+) 39...R8b3 (better 39...Re8 40.Qe8 Be8 41.Rh3 Kg7-+) 40.Kf2=+ Rf3 41.Rf3 Kg7 (better 41...Qh4 42.Rg3 Qd4 43.Re3 Rb3-/+) 42.Qh3 (42.g3!? Bh5 43.h4+=) 42…Qf6 (42...Qf6 43.Qd7 Bf7 44.Rf6 Kf6+-). opperwezen (2740) - penguingim1 (2790), lichess.org, 2017.

    7.d4 Ne7 8.de5 Be5 9.Be5 fe5 10.Nf3 Bg4 11.Be2 Qc7 12.h3 Bh5 13.Nbd2 Nbc6 14.b5 Nd8 15.Rc1+= Qb8 16.e4 Bf7 17.ed5 Bd5 18.Bc4 Nf7 19.Qb3 Bc4 20.Nc4 Ng6 21.0-0 0-0 22.Rfe1 Kh8 23.Qb2 Re8 24.Rc3 Nf4 25.Nfe5! Re7 26.Rf3 Ne5 27.Ne5 Ne6 28.Nf7 Kg8 29.Qa2 Rf7 30.Rf7 Kf7 31.Qe6 Kf8 32.Re3 (32.Re3 Qf4 33.Rf3 Qf3 34.Qd6 Kg8 35.gf3+–) 1–0. woschkat (2200) – bneuschy (2390), net–chess.com, 2001.

    7.Ne2 Ne7=+ 8.d4 e4 (8...a5 9.b5=+) 9.Nec3 0-0 (9...Be6 10.Nb5=) 10.Qb3 f5 (10...Kh8!?=) 11.Nd5+= Kh8 (11...Be6 12.Ne7 Qe7 13.d5+–) 12.Ndc3 Nbc6 13.Nd2 f4 (13...b6!?+–) 14.Nce4+– fe3 15.fe3 (worse 15.Qe3 Bf4 16.Qc3 Bf5+–) 15...Nf5 (15...Bc7 16.Bc4+–) 16.g3 (16.Nd6 Qd6 17.d5 Qe7+–) 16...Qe7 17.Bc4 Bd7 (17...a5 18.b5 a4 19.Qd3+–) 18.0-0 Rae8 19.Rf2 Nh6 (19...a5 20.b5 (worse 20.Nd6 Nd6 21.Rf8 Rf8+–) 20...Na7 21.Raf1+– (worse 21.Nd6 Nd6 22.Rf8 Rf8+–)) 20.Raf1 Rf2 21.Rf2 Rf8 (21...Nf5 22.Qd3+–) 22.Rf8 Qf8 23.Be6 Be8 24.Nd6 Qd6 25.d5 Nd8 26.Bh3 Bf7 (26...Nhf7 27.Qc3 Qh6 28.Bf1+–) 27.Qc3 Qg6 28.e4 Ng4 (28...Ng8+–) 29.Qc7 Qg5 30.Bg4 h5 31.Bf5 Qe3 (31...Qd2 32.Qd8 Bg8 33.Be6 Qe3 34.Kg2 Qe4 35.Kh3 Qh7 36.Qg5 b5 37.Bf5 Bf7 38.Bh7 Bg6 39.Bg6 a5 40.Qd8) 32.Kf1 Qd2 (32...Qd3 33.Ke1 Qe3 34.Kd1 Qg1 35.Kc2 Qb6+–) 33.Qd8 Bg8 34.Be6 Qd3 (34...Qd1 35.Kf2 Qc2 36.Ke3 Qc1 37.Bc1 Kh7 38.Qg8 Kg6 39.Bf5 Kf6 40.Qe6 Kg5 41.Kd4) 35.Kf2 Qd2 (35...Qc2 36.Ke3 Qe4 37.Ke4 Kh7 38.Qg8 Kg6 39.Qg7) 36.Kf3 Qd1 (36...Qd3 37.Kf4 Qf1 38.Kg5 Qf6 39.Qf6 gf6 40.Bf6 Kh7 41.Bf5) 37.Kf4 Qd2 38.Kf5 Qf2 39.Kg6 Qb2 (39...Qg3 40.hg3 h4 41.Qg8) 40.Qg8 1–0. Jan_Ek – Zaks, internet, 2020.

    7.Nf3 Qe7 8.Be2 a6 9.Nc3 Bd7 (better is 9...Be6!?+=) 10.Nd5+/– Qe6 11.Nb6 Ra7 12.Nd7 Nd7 13.0-0 g5 (13...Ne7 14.d4+/–) 14.h3 h5 15.d4 (15.Rc1 Nb6 16.Ne1 g4 17.hg4 hg4 18.Bg4 Qf7+–) 15...e4 (15...g4 16.Nh4 f5 17.de5 Be5 18.Be5 Ne5 19.Qd4+–) 16.Nh2 (better is 16.d5!? Qf5 17.Nd4+–) 16...g4+/– 17.g3 f5? (better is 17...gh3 18.Bh5 Kd8+/–) 18.d5+– (18.d5 Qh6 19.Bh8 Qh8 20.hg4 hg4 21.Rc1+–) 1–0. Fournier,Frederic – telegin1, Active, 2012.

    7.Nf3 Ne7 8.Nc3 Nbc6 9.Qb3 Be6 10.Qa4 0-0 11.Be2 d4 12.Ne4 de3 13.de3 Qc7 14.0-0 f5 (14...a6!?+=) 15.Nd6+/– Qd6 16.Rfd1 Qc7 (16...Bd5!?+/–) 17.Rac1 Rad8 18.Ne5! Rd1 (18...Ne5 19.Qa5 Double attack (19.Rc7 Pinning; 19.Rc7 Deflection; 19.Qa5 Decoy)) 19.Qd1 Qb6? (19...Rd8 20.Qc2 a6 21.Nf3+–) 20.Nc6 (20.Qd6!? Bb3 21.Nd7 Qd8+–) 20...Nc6 21.Bf3 Rd8 22.Qc2 Qb5 (22...Rd7 23.h3+–) 23.Qc3 (worse is 23.Bc6 Qc6 24.Qc6 bc6+/–) 23...Rd7 24.h3 Kf8 25.Bc6 bc6 26.Qc6 Qc6 27.Rc6 Rd1 (better is 27...Bd5 28.Rc5 Be4+–) 28.Kh2 Rd2 29.Bg7! Kg7 30.Re6 Rf2 31.Kg3 Re2 32.Kf3 Rb2 33.Re7 Kg6 34.Ra7 h6 35.Rb7 Rb3 (35...Ra2 36.Rb6 Kg5 37.Ra6+–) 36.a4 Rc3 37.a5 Kg5 38.g3 h5 39.h4 Kf6 40.a6 Ra3 41.b5 Ke5 42.a7 Kd5 43.b6 Kc6 44.Rb8 Ra6 45.a8Q Ra8 46.Ra8 Kb6 47.Rf8 Kc6 48.Rf5 Kd6 49.Rh5 Ke6 50.Ra5 Kf6 51.h5 Kg7 52.g4 (52.Ra7 Kf6 53.h6 Ke6 54.h7 Ke5 55.h8Q Kd5 56.Qd8 Kc5 57.Rc7 Kb5 58.Qb8 Ka4 59.Ra7) 52...Kh6 53.Kf4 (53.g5 Kh7 54.Ra7 Kg8 55.h6 Kh8 56.g6 Kg8 57.Ra8) 53...Kg7 (53...Kh7 54.Kg5 Kg7 55.Ra7 Kg8 56.h6 Kh8 57.Kg6 Kg8 58.Ra8) 54.g5 1–0. Fournier,Frederic (1945) – Dubin (1855), Active, 2005.

    7.Nf3 Ne7 8.d3 0-0 9.Be2 Be6 10.Nbd2 a6 11.0-0 Qd7 12.Rc1 Nbc6 13.Qc2 Rac8 14.Qb1 Na7 15.Nb3 b6 16.Rc8 Rc8 17.Rc1 Rc1 18.Qc1 Qc7 19.Qc7 Bc7 20.d4 e4 21.Nfd2 Bc8 22.g3 Kf7 23.Kf1 Ke6 24.h4 f5 25.Ke1 g6 26.Kd1 Kd6 27.h5 Bb7 28.hg6 hg6 29.Kc2 Ke6 30.Nf1 g5 31.Nbd2 f4 32.gf4 gf4 33.Nb3 f3 34.Bd1 Kf5 35.Ng3 (better is 35.Kc1!?+=) 35...Bg3–+ 36.fg3 Kg4 37.Bc3 (37.a4 Kg3 38.Kd2 Nf5–+) 37...Kg3 38.Be1 (38.a4 Nf5 39.Kd2 Kg2–+) 38...f2 39.Bf2 (39.Kd2 Nf5 40.Ke2 fe1B 41.Ke1 Ne3–+) 39...Kf2 40.Kd2 Nb5 0–1. Fournier,Frederic – Galichin_Yurij (2325), Active, 2012.

    7.f4 Ne7-/+ 8.Bb5 Nbc6 9.Qh5 (9.Ne2 0-0 10.Nbc3 ef4 11.Nf4 Bf4 12.ef4 Nd4-/+) 9...g6 10.Qf3 0-0 11.Ne2 a5 12.0-0 ab4 13.a4? (better is 13.ab4 Ra1 14.Ba1-/+) 13...Na7–+ 14.fe5 fe5 15.Qf8 Qf8 16.Rf8 Kf8 17.Bd3 Nac6 18.Nc1 (18.Bb5 Na5–+) 18...Na5 19.Bb5 Nc4 20.Nd3 Nc6 21.e4 (21.Bc4 dc4 22.Nf2–+) 21...Nb2 22.Nb2 Bc5 23.Kf1 Bd4 (23...Nd4!? 24.Nd3 Bd6 25.Nb4 Bb4 26.Be2 de4 27.Ra2 Ne2 28.Ke2 Bg4 29.Kf2 Bc5 30.Ke1–+) 24.ed5 (24.Ra2 Be6 25.Nd1 de4–+) 24...Na7 25.Bd3 Bb2 26.Ra2 Bd4 27.Bc4 (27.Rc2 Bg4–+) 27...e4 28.Rc2 (28.a5 Bd7 29.Ke2 Nb5–+) 28...Bf5 29.h3 h5 30.Be2 (30.Bb3 Rc8–+) 30...Rc8 31.Rc8 Nc8 32.Ke1 (32.g4 hg4 33.hg4 Bd7–+) 32...Nb6 33.g4 (33.Bd1 Nd5 34.g4 Bd7–+) 33...hg4 34.hg4 Bd7 35.a5 (35.Bb5 Bg4 36.d6 Kf7–+) 35...Nd5 36.d3 (36.a6 ba6 37.Ba6 Nf4–+) 36...e3 37.Bf3 Bc6 (37...Nc3 38.g5 Nb1 39.a6 ba6 40.Bd1 Nc3 41.Bf3 b3 42.Bd1 Bh3 43.Bg4 b2 44.Bd1 Be5 45.Bg4 Bg3) 38.Be4 Ne7 39.Ke2 Kf7 40.g5 (40.Kf1 Kf6 41.a6 ba6 42.Ke2–+) 40...Ke6 41.Bf3 Kf5 0–1. Bulcourf,Carlos (2145) – Chadwick,Norman (2205), IRT Jose Rubinstein, 2008.

    7.f4 ef4 8.Qh5+= Kf8 9.Qd5 (9.ef4 Nc6-/+) 9...Ne7-/+ 10.Qf3 Ng6 11.Bc4 (better is 11.Ne2 fe3 12.de3-/+) 11...Ne5?? (better is 11...Nd7 12.Qe2 Nde5-/+) 12.Be5= (12.Qf4?? Nd3 13.Bd3 Bf4–+) 12...Be5 13.d4 Bc7 14.Ne2 fe3 15.Nbc3 g6 (15...Nc6 16.Qh5 Qe8 17.Qc5 Qe7 18.Nd5 Qc5 19.dc5= (worse is 19.bc5 Ba5 20.Kd1 Bd2-/+)) 16.Nd5 (16.0-0 Kg7+=) 16...Kg7 17.Rc1 (17.0-0 f5+=) 17...Bd6 (17...Nc6 18.Nc7 Qc7 19.0-0=) 18.0-0+= Rf8 19.Qe3 Nd7 20.Ba2 (20.Nef4 Nb6+=) 20...Nb6= 21.Nf6?? (better is 21.Nec3=) 21...Rf6–+ 22.Rf6 (22.Ng3 Bf5–+) 22...Qf6 (worse is 22...Kf6 23.Rf1 Bf5 24.g4+/–) 23.Rf1 Bf5 24.Ng3 (24.Nf4 Bf4 25.Rf4 h5–+) 24...Bg3 25.hg3 h5 26.Qf4 (26.Re1 Bd7 27.Qe7 Qe7 28.Re7 Kf6 29.Rf7 Kg5–+) 26...Rd8 27.Qc7 (27.Rd1 Rd7–+) 27...Rd7 28.Qb8 (28.Qe5 Rd4 29.Qc7 Rd7–+) 28...Qd4 29.Kh2 Nd5 (better is 29...Qd6 30.Qg8 Kh6 31.Qh8 Kg5–+) 30.Re1 (30.Bd5 Qd5 31.Qa7–+) 30...Nf6 31.Be6 (31.Qf4 Qc3 32.Qc1 Ng4 33.Kh3 Qc1 34.Rc1–+) 31...Be6 32.Re6 h4 (32...Ng4 33.Kh3 Qd1 34.Kh4 Qh1 35.Kg5 Rd5 36.Qe5 Ne5 37.Re7 Nf7 38.Kf4 Qf1 39.Ke4 Qd3 40.Kf4 Rf5) 33.Re1 (33.b5 hg3 34.Qg3 Ng4 35.Kh3 Nf2 36.Kh2–+) 33...hg3 34.Qg3 Qd6 (34...Rd5 35.Qc7 Kh6 36.Qc1 Kh5–+) 35.Qd6 Rd6 36.Re7 Kh6 37.Rb7 Ra6 38.b5 (38.Kg3 Ra3 39.Kf4 Nd5 40.Ke4 Ne3–+) 38...Ra3 39.g3 (39.Kg1 Ng4 40.Kf1 Ra2–+) 39...Nd5 (39...Kg5 40.Re7–+) 40.Rd7 (40.Rb8 Kh5 41.Rh8 Kg4 42.Rh4 Kg5–+) 40...Nc3 41.Rb7 Ne4 42.b6 (42.Rb8 Kg5–+) 42...ab6 43.Rb6 (43.g4 Kg5 44.Re7–+) 43...Ng3 44.Kh3 Kh5 45.Rb8 Nf5 46.Kg2 Rd3 (46...g5!? 47.Rb5 Ra2 48.Kf1–+) 47.Rh8 (47.Kf2 g5–+) 47...Kg4 48.Ra8 (48.Kf2–+) 48...Rd2 49.Kg1 g5 (49...Nd4 50.Ra6 g5 51.Ra4 Kg3 52.Ra3 Nf3 53.Rf3 Kf3 54.Kh1 Kg3 55.Kg1 Rd1) 50.Ra4 Rd4 (50...Nd4 51.Kf1 Kg3 52.Rd4 Rd4 53.Ke2 Kf4 54.Kf2 Re4 55.Kg2 Re2 56.Kf1 Kf3 57.Kg1 Rd2 58.Kh1 Kg3 59.Kg1 Rd1) 51.Ra2 Ng3 52.Kg2 Re4 53.Ra3 Re2 54.Kg1 Ne4 55.Kf1 Rc2 (better is 55...Rf2 56.Ke1 Kf4–+) 56.Kg1 (56.Ke1–+) 56...Kf4 57.Ra1 g4 58.Rf1 Kg3 59.Rd1 Ng5 60.Ra1 Nf3 (60...Nf3 61.Kf1 Rf2) 0–1. Ackermann,Robert (1945) – Hein,Manfred (1970), Mittelfranken–ChTB1, 2008.

    7.Nc3 Be6

    8.Qa4?! Nc6 9.b5 Na5! =+. Gross.

    8.Qa4 Nd7 9.Nb5 Qb8 (9...Bb8 10.Nf3=) 10.Rc1= Ne7 11.Ne2 (11.Nf3 0-0=) 11...0-0+= 12.Nec3 (12.d4 Nb6 13.Qc2 Nc4=) 12...a6 13.Nd6 Qd6 14.Be2 (14.Qd1 Rac8=) 14...b5 (14...Rac8 15.d4+=) 15.Qd1 f5 Black intends e4 (15...Rac8 16.0-0+=) 16.0-0 (16.d4 f4=) 16...Nf6 Black plans e4 (16...d4 17.ed4 ed4 18.Nb1+=) 17.d3 (17.d4 e4=) 17...Ng6 (17...d4 18.ed4 ed4 19.Nb1+=) 18.Qd2 f4 19.d4 e4 20.ef4 (20.f3 fe3 21.Qe3 Qf4 22.Qf4 Nf4 23.fe4 Ne4+=) 20...Nf4 21.Bb5? (better is 21.f3+=) 21...Ng4 22.g3 Nh2 (22...Nh2 23.Be2 Ne2 24.Kh2 Nc1 25.Rc1 Bg4–+) 0–1. Borrmann,Fritz – Keast,Donald Aiwyn, corr, 1975.

    8.Bb5 Nc6 9.Ba4 Nge7 10.Nf3 0-0 11.d4 e4 12.Nd2 f5 13.Bb3 Qd7 14.f4 Kh8 15.Qh5 Rf6 16.0-0 Raf8 17.h3 Rh6 18.Qe2 Rg8 19.Kh2 (better 19.Ba4!?=) 19...g5-/+ 20.g3 gf4 21.gf4 Rhg6 22.Rg1 Nd4?? (better 22...Nc8=) 23.ed4 (23.Rg6 hg6 24.Nb5+- (24.ed4?! Bf4 25.Kg2 g5=)) 23...Bf4-/+ 24.Kh1 Nc6 25.Rg6 Rg6 26.Na4?? (26.Qf2 Bc7 27.b5-+) 26...b6 (better 26...Rg3 27.Qh2 Qd6 28.Nc4-+) 27.Rf1? (27.Qf2 Bd2 28.Qd2-/+) 27...Bb8?? (27...Qg7 28.b5 Na5-+) 28.Qh5?? (better 28.Rg1=+) 28...f4 (better 28...Qd6 29.Rf2 Qg3 30.Qg6 hg6-+) 29.Ne4+= Bh3 30.Rg1 Bg4 31.Rg4! (31.Qd5?? Bf3 32.Rg2 Qh3 33.Kg1 Qg2) 31...Qg4 (31...Qg4 32.Qg4 Combination; 31...Rg4 32.Nf6 Double attack (32.Nf6 Decoy)) 32.Qg4 Rg4 33.Nf6?? (33.Bd5!? Nd8 34.Bc4+/-) 33...Rh4 (33...Rg6 34.Bd5 (34.Nd5?? f3 35.Ne7 Ne7 36.d5 Kg8 37.d6 Kf8 38.de7 Ke7-+) 34...Ne7 35.Be4 Rf6 36.d5-/+) 34.Kg2 (34.Kg1 f3 35.Bd5 Nd4=) 34...Ne7 (better 34...f3 35.Kg1 Nd4-+) 35.Nd5+= Nf5 36.Nf6 Kg7 37.Ne4?? (37.Nd7 Bd6 38.d5 Kg6+=) 37...Kg6?? (37...f3 38.Kf3 Rf4 39.Ke2 Re4 40.Kd1 Nd4 41.Bd5-+) 38.d5?? (better 38.Nf2=) 38...Ne3 (better 38...f3 39.Kf3 Rh3 40.Kf2 Rb3-+) 39.Kf3 Rh3 40.Ke2 Nf5 41.Nf2?? (better 41.Bc2 f3 42.Ke1 Rh1 43.Kd2 Rh2 44.Kd3-+) 41...Rb3-+ 42.Bd4 (42.Nd1-+) 42...Ra3 43.Nd3 (43.Bc3-+) 43...Nd4 44.Kd1 Ra4 (44...Rd3 45.Kc1 f3 46.Nb2 Bf4 47.Kb1 f2 48.Nd3 f1Q 49.Ne1 Qe1 50.Ka2 Qf2 51.Kb1 Qc2 52.Ka1 Nb3) 45.Nf4 (45.Nf4 Bf4 46.Ke1 Ra2 47.Kf1 Bg3 48.Kg1 Nf3 49.Kf1 Rf2). pacalmisu (2400) - Deninho (2390), Rated Blitz game, lichess.org, 2016.

    8.Bb5 Nc6 9.Qh5 g6 10.Qf3=+.

    8.Rc1 Nc6 9.d4=.

    8.Rc1 Nc6 9.Nf3 (9.d4 ed4 10.ed4=) 9...Nge7 (9...e4 10.Ng1=) 10.Bb5 (10.Nb5=) 10...0-0 11.h3 e4 12.Nd4 Nd4 13.ed4 f5 14.0-0 Ng6 15.d3 Qg5 16.de4? (better is 16.g3–+) 16...fe4 17.Kh1 (17.g3 Nh4 18.Be2 Bg3 19.Bg4 Nf3 20.Kh1 Bg4 21.fg3–+) 17...Qf4 18.g3 Qh6 19.h4 (19.Kg1 Qh3 20.Qe2–+) 19...Nh4! (19...Nh4 20.Kg1 Nf3 21.Qf3 ef3–+) 0–1. Corluy,H – Van den Brande,Werner (2260), Brasschaat op, 2002.

    8.Rc1 Ne7 9.Nb5 0-0 10.Nf3 Nbc6 11.Nd6 Qd6 12.Be2 Kh8 (12...d4 13.Qc2 Rac8 14.Qd3=) 13.0-0 Rfc8 14.Nh4 (14.d4 a6+=) 14...Nd8 (better is 14...Nb4!? 15.Qb3 Nbc6-/+) 15.Qa4 Bd7 16.Bb5 (16.Rc8 Nc8 (worse is 16...Ba4 17.Ra8 a6 18.d4+/–) 17.Qb3 Nb6=) 16...Ndc6 17.Qd1 a6 18.Ba4 b5 19.Bc2 f5 20.f4 Rf8 (20...e4!?=) 21.fe5+= Ne5 22.Nf3 Nc4 23.Bd4 Qh6 24.Ne5 Be8 25.Qe1 Ne5 (25...Na3!? 26.Bb3 Nc4=) 26.Be5+/– Qe6 27.Qg3 Ng6 28.Bc3 Rf7 29.Rf3 Bd7 30.Rcf1 Raf8 31.Bd4 Ne7 32.h4 Kg8 33.h5 (33.Bf5 Nf5 34.Rf5 Qf5 35.Rf5 Bf5+/–) 33...Qh6+= 34.Rf4 (34.Qh4 Ng6 35.Qh3 Ne7+/–) 34...Be6 (34...Qh5 35.Bd1 Qg6 36.Qf3=) 35.Bc5 (35.Qh4 Nc6 36.Bc5 Re8+/–) 35...Qf6 (better is 35...Qh5!? 36.R4f3 Qg6=) 36.Qf3 g5 (36...Kh8 37.Bd1+/–) 37.Qg3 (37.hg6 Qg6 38.a4 ba4 39.Ba4 Rc8+/–) 37...Rg7 (37...Qg7!? 38.R4f2 Rc8+/–) 38.R4f2 f4 39.ef4 Nf5?? (better is 39...gf4 40.Rf4 Qf4 (40...Rg3?? 41.Rf6 Rf6 42.Rf6+–) 41.Qf4 Rf4 42.Rf4 Rf7 43.Rf7 Kf7 44.Bh7 Bg4 45.Be7 Ke7+–) 40.Bf5 Bf5 41.Bf8 (41.Bf8 Kf8 42.fg5 Rg5 43.Qg5 Qg5 44.Rf5 Qf5 45.Rf5 Ke7 46.Rd5+–) 1–0. Mohring,Norbert (1815) – Fehres,Werner (2100), Alpenpokal, 2002.

    8.d4 Ne7=.

    8.Nf3 Nc6 9.d4 e4 10.Nd2 Nge7 11.Nb3 0-0 (11...a6 12.Rc1=) 12.Nb5 (12.Nc5 Bc5 13.dc5 a5=) 12...Bb8 13.Nc5 Bc8 14.Nc3 f5 15.Be2 (15.b5 Na5+=) 15...f4 16.Qb3 (16.Rc1 fe3 17.fe3 Bd6=) 16...Kh8+= 17.Bc1 (17.Rc1 a6+=) 17...a6-/+ 18.h3 b6 19.N5a4 Rf6 (19...f3 20.gf3 ef3 21.Bd3-/+) 20.Bg4 Bc7 (20...Bg4 21.hg4 Rf8 22.Qc2 fe3 23.Be3=) 21.Bh5 (21.b5 Na5 22.Qc2 Bg4 23.hg4 fe3 24.Be3 ab5 25.Nb5 Bf4+=) 21...Be6 22.b5 (22.Bg4 Qd7-/+) 22...Na5 23.Qc2 (23.Qd1 Nf5 24.ef4 Nd4–+) 23...Nf5–+ 24.Nd1 (24.Be2 Nh4–+) 24...Nh4 Black prepares the advance f3 25.Kf1 Ng2! 26.Kg2 f3 27.Kf1 Rh6 28.Bf3 ef3 29.Ke1 Rh3 30.Rh3 Bh3 31.e4 Qe8 (31...de4 32.Qe4 Nb3 33.Rb1 Nd4 34.Rb4 Nb5 35.Qf3–+) 32.Qc7 (32.Nac3 de4 33.Nd5 Bd6 34.ba6 Rc8–+) 32...Rc8 33.Qf4 (33.Qg3 Qb5 34.Nac3 (34.Qf3?? Qf1 35.Kd2 de4–+) 34...Qf1 35.Kd2 Nb3 36.Kc2 Na1 37.Kb2 de4 38.Qf4–+) 33...Qb5 34.Nac3 (34.Ndc3 Qd3 35.Nb2 Qf1 36.Kd2 Qf2 37.Kd1 Nb3–+) 34...Qd3 (34...Qd3 35.Qg3 Rc3 36.Nc3 Qc3 37.Kd1 Qd4 38.Ke1 Qc3 39.Kd1 Nb3 40.Qb8 Bc8–+) 0–1. Laurent,Claude – Schwertel,Gottfried, corr TKM/A007, 1999.

    8.Nf3 h6 9.Bb5 Nc6 10.0-0 Nge7 11.Qc2 0-0 12.Nh4 Qd7 13.Ng6 Ng6 14.Qg6 Bf5 15.Bc6 (15.Qh5!? a6 16.Ba4=) 15...bc6-/+ (15...Bg6? 16.Bd7 Rad8 17.Be6 Bf7 18.Bd5 Bd5 19.Nd5+–) 16.Qh5 Qf7?? (better is 16...a5-/+) 17.Qf5+– 1–0. Fournier,Frederic (1980) – rigolator (1660), Active (5/0), 2005.

    8.Nf3 Nh6 9.Qb3 Be7 10.e4 (10.Bb5 Kf7=) 10...de4 11.Qe6 ef3 12.Bb5 Kf8 13.Ne4 (13.Rc1!?=) 13...fg2 14.Rg1 a6 (14...a5 15.Rg2 Na6 16.ba5+=) 15.Ba4 (better is 15.Rc1 Nc6 16.Bc6 bc6 17.Rg2+=) 15...Qd3?? (15...a5 16.Rc1 Nc6 (16...ab4? 17.Rc8 Nc6 18.Rd8 Nd8 19.Qd7+–) 17.ba5 Nd4 18.Bd4 ed4 (worse is 18...Qd4 19.Rc8 Rc8 20.Qc8 Qd8 21.Qb7+=) 19.Rg2 Ba3+= (19...Ra5 20.Rc8 g5 21.Rd8 Bd8 22.Nf6+–)) 16.Qc8 (16.Nc5 Qf5 17.Qd5 Bc5 18.Qc5 Kf7 19.Qc7 Nd7 20.Qd7 Qd7 21.Bd7 Rad8+– ) 16...Kf7 17.Qb7 (17.Qh8?! Qe4 18.Kd1 Qf3 19.Kc2 Qf5 20.d3 Qf2 21.Kc3 f5+=) 17...Nd7? (better is 17...Rd8 18.Qa8 f5 19.Rg2 fe4 20.Be5 Nf5+–) 18.Bd7 Rab8 (18...Rhb8 19.Qc6+–) 19.Nc5 (better is 19.Qc6!? Rhd8 20.Be6 Kf8 21.Rg2 a5+–) 19...Bc5 20.Be8 Ke8 (better is 20...Ke6!? 21.Qb8 Bf2 22.Kf2 Ng4 23.Kg2 Qd2 24.Kh3 Qh2 25.Kg4 h5 26.Kf3 e4 27.Ke4 Qb8=) 21.Qb8+/– Kf7 22.Qb7 (22.Qc7 Be7 23.Rg2 Rd8+/–) 22...Be7 23.Qg2 g6 (23...Nf5 24.Qf1 Rd8 25.Qe2+/–) 24.Qf1 (24.Qg3 Qd5+/–) 24...Qc2 25.Bc3 Rc8? (25...Qe4 26.Qe2 Qe2 27.Ke2+/–) 26.Rg3?? (better is 26.Qa6 Rc3 27.dc3 Qc3 28.Ke2+–) 26...Nf5+/– 27.Qd3 Qa4 (27...Qd3 28.Rd3 Bd6 29.Rh3+/–) 28.Qd5 Kf8 29.Rd3 (29.Rg1 Qc2 30.Qf3 Nh4+/–) 29...Qc2 (29...Kg7 30.Qb7 Qc6 31.Qc6 Rc6 32.a4+/–) 30.Ke2 (30.Rh3 Kg7+/–) 30...e4 (30...Rd8 31.Qf3+/–) 31.Rh3+– h5 (31...Rd8 32.Qa2 Qa2 33.Ra2+–) 32.Qa2 (32.Ra2 Qb1 33.Qe6 Nd4 34.Bd4 Rc1=) 32...Qa4 (32...Qa2 33.Ra2 Kf7 34.f3+/–) 33.Rg1+– Qb5 34.Kd1 Kg7 (34...a5 35.Qe6 Qc4 36.Qc4 Rc4 37.Rg6+–) 35.Qe6 Re8 36.Kc1 (better is 36.Qe4!? Kf7 37.d3+–) 36...Bd8+/– 37.Qb3 (37.a4 Qf1 38.Rf1 Re6+–) 37...Qe2 38.Qa4 Re7 39.Qc6 (39.Qd1 Qd1 40.Kd1 Kf7+/–) 39...Rc7 (39...Rf7 40.Qc5 Kh6 41.Qd5+/–) 40.Qe8+– Rf7 41.Qd8 Qf2 42.Rhg3! Ng3 (42...Ng3 43.Qd6 Double attack (43.Qd6 Decoy)) 43.Rg3 Qh2 44.Qd6 (44.Re3 Qf4+–) 44...Qh1 (44...Qf2 45.Re3+–) 45.Kb2 Qf1 (45...Qh4 46.Re3+–) 46.Qd5 (46.Re3 a5+–) 46...Qf4 47.Rg1 Qf2? (47...Qf3+–) 48.Qg5 e3 (48...Kf8 49.Qg6 Qb6+–) 49.Qg6 Kf8 50.Qh6 (better is 50.b5 Qg1 51.Bb4 Re7 52.Qg1+–) 50...Ke7 51.Qe3 (51.Qe3 Qe3 52.de3+–) 1–0. Margraf,A – Stabenow,Juergen, corr SOK–87–09, 1987.

    8.Qh5 g6 9.Qf3 Bc7 10.Bb5=.

    8.Qh5 g6 9.Qf3 e4 10.Qe2=.

    8.Qb3!? Ne7

    9.e4 0-0 10.ed5 Bf5 11.Nf3=.

    9.e4 Nbc6! 10.ed5? Nd4. Gross.

    9.e4 Bc7 10.ed5 Bd5 11.Qa4 (11.Nd5 Nd5 12.Bc4 Nf4+=) 11...Nd7 12.Nd5 Nd5 13.Qb3 N7b6 14.Bb5 Kf7 15.Ne2 a6 16.Bd3 Qd7 17.Rc1 Rac8 18.Rc5 (18.Be4 g6+=) 18...Ke7 (18...Qa4 19.Qa2 Qd7 20.Be4+–) 19.Be4 Rhd8 20.g3 (20.Nc3!? Nc3 21.Bc3+= (worse is 21.Qc3 Na4 22.Qc2 Nc5 23.bc5 Ba5–+; 21.Rc3? Qd2 22.Kf1 Qd1 23.Qd1 Rd1 24.Ke2 Rh1–+)) 20...f5= 21.Bg2 Qe6 Black plans e4 22.0-0 Nf4 23.Qe6 (23.Qf3 Ng2 24.Rfc1 Nd5 25.Kg2 Kf8=) 23...Ne6+= 24.Rc2 e4 ½–½. Hunstock,Joachim – Schirmer,Michael, corr KGP–Z–04, 1991.

    9.e4 Bc7 10.ed5 Nd5 11.Bc4+/– Nc3 12.Be6 (worse is 12.Bc3 Bc4 13.Qc4 Nc6=) 12...Ne4 (12...Nb5 13.Bg8 Qd7 14.Bh7+/–) 13.d3 (13.Bd5 Nd6+/–) 13...Nd6+= 14.d4 ed4 (14...Nd7 15.de5 Ne5 16.Nf3+/–) 15.Nf3 Nc6 16.Rd1 a5 (16...Nb5 17.a4 Qe7 18.0-0+– (18.ab5?! Nd8 19.Nd4 Bb6+–)) 17.Nd4 (17.0-0 ab4 18.ab4 Qe7+–) 17...Nd4 18.Rd4 ab4 (18...Qe7 19.0-0+–) 19.0-0+– (19.Rb4?! Ba5=; 19.Qb4?? Ba5 20.Bc3 Bb4 21.Bb4 Ra3 22.Rd6 Ra1 23.Kd2 Rh1 24.Rd8 Kd8 25.Ba5 Ke7–+; 19.ab4?! Ra7+–) 19...Qe7 (19...Kf8 20.Re1+–) 20.ab4 (20.Re1 Kf8+–) 20...Bb6 (20...Kf8 21.Re1+–) 21.Rdd1 Kf8 22.Rfe1 Qc7?? (better is 22...Re8+–) 23.Qf3 (23.Qf3 Qc2 24.Bf6 (worse is 24.Rd6 Qb2 25.Rb6 Ra1+–) 24...Qf2 25.Qf2 Bf2 26.Kf2 gf6 27.Rd6+–) 1–0. Luzuriaga,Norberto Horacio – Vasseur,Olivier, corr XII World Cup, 2001.

    9.e4 Bc7 10.ed5 Bf7 (10...Bd5 11.Nd5 Qd5 12.Qd5 Nd5 13.Bc4=) 11.Bc4 (11.Nf3 0-0+= (11...Nd5? 12.Bc4+–)) 11...Nd7= 12.Rc1 (12.Ne4 Nb6=) 12...Nb6 Increasing the pressure on the isolated pawn on d5 13.Nge2 (13.Bb5 Kf8=) 13...Nc4 (worse is 13...Bd5 14.Nd5 Ned5 15.Bb5 Kf8 16.0-0+/–) 14.Qc4 0-0 (worse is 14...Bd5 15.Nd5 Nd5 16.Qb5 Qd7 17.Qb7+/–) 15.0-0 Rc8 (15...Bd5? 16.Nd5 Qd5 17.Qc7+–) 16.d4 (16.Qg4 f5 17.Qh3 a6=) 16...Nd5+= 17.Qd3 ed4 18.Nd5 Bd5 (18...Qd5 19.Bd4 Rfe8 20.Rfd1+=) 19.Qd4 (19.Bd4 Qd6 20.Ng3 Rfd8 21.Ba7 b6+=) 19...Qd6 (19...Re8 20.Ng3=) 20.Nf4 (20.Qh4 Rcd8=) 20...Bc6 (20...Bf7 21.Qd6 Bd6 22.Ne2+=) 21.Qc4 (21.Qd6 Bd6 22.Ne6 Rfe8=) 21...Kh8+= 22.g3 Rfe8 (22...Qd2 23.Ne6 Bd5 24.Qd4 Qd4 25.Nd4=) 23.Rcd1 (23.Rfd1 Qf8 24.Ne6 Qf7 25.Nc7 Qc4 26.Rc4 Rc7=) 23...Re4 (23...Qf8 24.b5 Bf4 25.bc6+=) 24.Qc3 (24.Qc2 Qe7 25.b5 Bb5=) 24...Qe7 (24...Qf8 25.Nd5+=) 25.Nd5= Qf7 26.Nc7 Rc7 (26...Qc7 27.Qd3 b5 28.Rfe1 Re1 29.Re1+=) 27.Rd8 Re8 28.Rfd1 (28.Re8 Be8 (28...Qe8? 29.b5+–) 29.Qd3 Qe6=) 28...Rce7+= 29.Re8 Re8 30.f3 (30.Qd3 a6+=) 30...Qe6 31.Rf1 (31.Qd3 a6+=) 31...h6 (31...Bb5 32.Rf2+=) 32.Kg2 Qe2 (32...Qf5 33.Rf2+=) 33.Rf2= Qd1 34.Qd4 Re1 (better is 34...Qb3+=) 35.Qf4?? (35.Qd1!? Rd1 36.g4=) 35...Rg1-/+ 36.Kh3 Bd7 37.g4 h5 38.Bf6 gf6 (better is 38...hg4 39.Kh4 gf3–+ (39...gf6?! 40.Qf6 Kg8 41.Qg6 Kh8 42.Qf6 Kh7 43.Qf7 Kh6 44.Qf6 Kh7 45.Qf7 Kh8 46.Qf8 Kh7 47.Qf7=)) 39.Qf6= Kg8 40.Qg6 Kh8 41.Qh6 ½–½. De Visser,Arno – Krumboehmer, Dieren, 1982.

    9.Nf3 Nbc6 10.Rc1+=.

    9.Nf3 Qd7 10.Bb5 (10.Nb5 0-0=) 10...Nbc6+= 11.d4 a6 12.Bc6 (12.Be2 b5+=) 12...Nc6+= 13.b5 (13.Na4!? e4 14.Nd2=) 13...Na5-/+ 14.Qa2 (14.Qa4 Nc4 15.Qb3 0-0-/+) 14...e4 (14...ab5 15.Qb1–+) 15.Nd2 ab5 16.Nd5 (better is 16.Qb1–+) 16...Qc6?? (better is 16...Ra6–+) 17.Nf6+/– Ke7 (17...gf6 18.Qe6 Double attack (18.Qe6 Discovered attack)) 18.Qe6! Ke6 19.d5 Qd5 20.Nd5 Kd5 21.Rd1 (worse is 21.Bg7 Rhg8 22.Bb2 Nc4 23.Nc4 bc4+=) 21...Be7 22.f3 (22.Ke2 Ke6+=) 22...ef3 (22...Ke6 23.Bg7 Rhg8 24.Bd4= (24.Ne4? Rg7 25.Kf2 Nc4–+)) 23.Nf3 Ke4 (23...Kc6!?+=) 24.Rd4+/– Kf5 25.Rd5 Ke6 26.Re5 (26.Rb5 Nc4 27.Nd4 Kd6+/–) 26...Kd6 (26...Kf7 27.Rb5 Nc4 28.Ne5 Ne5 29.0-0 Bf6 30.Be5 Ra3 31.Rb7 Ke6 32.Bf6 gf6 33.Rb6 Ke5 34.Rff6 Re3 35.Rbe6 Kd4 36.Rf4 Kd3 37.Rd6 Kc2 38.Rc6 Kd2 39.Rf2 Kd3 40.Rf7+/–) 27.0-0 (better is 27.Kf2 Bf6 28.Rb5 Bb2 29.Rb2+–) 27...Nc4?? (better is 27...Bf6 28.Rb5 Bb2 29.Rb2 Rhb8+/–) 28.Rd1+– Kc6 29.Re6 (29.Re7?! Nb2 30.Nd4 Kd6 31.Nf5 Kc5 32.Re5 Kb6+–) 29...Bd6 30.Ne5 (30.Ne5 Kc5 31.Nc4 Bh2 32.Kh2 bc4 33.Red6+– (worse is 33.Bg7 Rhe8 34.Bd4 Kd5+–)) 1–0. marus1 – Dimusik, internet, 2001.

    9.Nf3 Nd7 10.e4 Nb6 11.d4 Kf7 12.Qd1 Rf8 (12...Nc4 13.ed5 Bd5 14.Nd5 Nb2+/–) 13.de5+/– Be5 14.Ne5 fe5 15.ed5 Nbd5 16.Ne4 (16.Nd5!? Nd5 17.Be5+/–) 16...Ng6 17.Bc4 (17.Qh5 Kg8+=) 17...Rc8+= 18.Nc5 Ndf4 19.Be6 Ne6 20.Qf3 Qf6 21.Qb7 Rc7 22.Qd5 Ngf4 23.Qe4 (23.Qe5 Ng2 24.Kf1 Qe5 25.Be5 Re7+–) 23...Nc5= 24.bc5 Rb8 25.Bc1 (worse is 25.Be5 Qe5 26.Qe5 Nd3 27.Ke2 Ne5–+) 25...Rc5 26.0-0 (26.Be3 Rc7=) 26...Qg6 27.Qg6 (27.Qf3 Rc3 28.Be3 Kg8+=) 27...Kg6+= 28.Ra2 (28.Bf4 ef4 29.Rfe1 Rc2+=) 28...Nd3 (28...Rbc8 29.Bf4 ef4 30.Re1+=) 29.Be3 Ra5 30.h3 Ra4 31.Rfa1 Rb3 Attacking the isolated pawn on a3 32.Kh2 (32.f3 Kf5+=) 32...e4-/+ 33.Kg1 Kf5 34.Rc2 (34.f3 ef3 35.gf3 g5-/+) 34...a6 (34...Raa3!? 35.Ra3 Ra3 36.Bd4–+) 35.Rc7 Kg6 (35...Raa3 36.Ra3 Ra3 37.Rg7+=) 36.Rc6+= Kf5 (36...Kh5!?-/+) ½–½. Gross,Wilhelm – Labahn,Wolfgang, corr SOK–92–87, 1992.

    7.Nc3 Ne7

    8.Nb5 0-0= 9.Nf3 (9.d4 a6 10.Nd6 Qd6=) 9...Bg4 10.Be2 (10.h3 Bh5=) 10...Nbc6 (10...a5 11.Nd6 Qd6 12.b5=) 11.Nd6 Qd6 12.b5 Nd8 13.a4 (13.d3 Ne6=) 13...Be6 (13...Ne6 14.Ba3 Qd8 15.d3=) 14.0-0+= Nf7 15.d3 (15.Ba3 Qd7+=) 15...Rfc8= 16.Ba3 (16.d4 Rc7=) 16...Qd7 (16...Qd8 17.d4=) 17.Qd2 (17.d4 Rc7=) 17...Nf5= Black prepares the advance d4 18.Rfc1 d4 19.e4 (19.Rc8 Rc8 20.Rc1 Rc1 21.Qc1 de3 22.fe3 b6=) 19...N5d6+= 20.Bd1 b6 21.Qb2 (21.Ne1 a6 22.ba6 Ra6=) 21...Nb7 (21...a6 22.Rc8 Nc8 23.ba6 Ra6 24.Bb4=) 22.Nd2 (22.Bb3 Rab8=) 22...Nfd8 23.f4 ef4 (23...Nc5 24.Bc5 Rc5 25.Rc5 bc5 26.fe5 fe5 27.Bb3+=) 24.Nf3 (24.Nb3 f5+=) 24...Rc3 (24...Nc5 25.Bc2+=) 25.Rc3 dc3 26.Qc3 Rc8 (26...Nc5 27.Bc5 bc5 28.Bb3+=) 27.Qd4 Qd4 (27...Qf7 28.Rc1+/–) 28.Nd4+/– Rc3 (better is 28...Nc5 29.Be2 A) 29...Na4? 30.Bd6 (30.Ne6?! Ne6 31.Bg4 Re8+=) 30...Nc3 31.Ra7+–; B) 29...Nb3 30.Nb3 Bb3+=) 29.Ne2 (29.Be2!?+/–) 29...Rd3= 30.Nf4 Rc3 31.Bb2 Rc4 32.Ne6 Ne6 33.e5 Kf7 34.ef6 (34.Bh5 g6 35.Bf3 Nbc5 36.ef6 Nd3=) 34...gf6 35.Bf3 (35.Rc1 Rc1 36.Bc1 f5+=) 35...Nbc5= 36.Rf1 Kg6 37.Bd5 Exerts pressure on the isolated pawn 37...Rf4 38.Re1 (38.Be6 Rf1 39.Kf1 Ne6=) 38...Ng5 39.Re8 (39.Ba3 Na4 40.Re3 Rd4=) 39...Nd3 (39...Ra4 40.Rg8 Kf5 41.h3+=) 40.Bc3= Ra4 41.g3 (41.Kf1 Kf5=) 41...Ra3 (41...Nc5 42.Kg2+=) 42.Bd4 (42.Rg8 Kf5 43.g4 Kf4 44.Bf6 Nf3 45.Kg2 Nde1 46.Kh1 Rd3-/+) 42...Ra5 (better is 42...Nb4 43.Bb2 Rd3+=) 43.g4? (better is 43.Rg8!? Kf5 44.Bc6+=) 43...Rb5–+ 44.Bc4 Nf3?? (44...Rb1 45.Kg2 Nf4 46.Kg3 Rb4 47.Rg8 Kh6 48.Kf4 Rc4-/+) 45.Kg2= Nde1 46.Kh3? (46.Kf2 Nd4 47.Rg8 Kh6 48.Bb5 Nb5 49.Ke1 Na3=) 46...Rb4 (better is 46...Ng5!? 47.Kg3 Rb4 48.Rg8 Kh6-/+) 47.g5?? (better is 47.Rg8 Kh6 48.Bf6 Rc4 49.Kg3=) 47...Rc4 (47...Rc4 48.Bf6 h6 49.Rg8 Kf5–+; better is 47...Ng5 48.Kg3 Rc4 49.h4 Rd4 50.hg5–+) 0–1. Benko,P – Suttles,D, Vancouver, 1971.

    8.Nb5 a6 9.Nd6 Qd6 10.Nf3 (10.Qh5 g6 11.Qd1 Nbc6=) 10...0-0 11.Be2 Nbc6 (11...Bg4 12.Rc1=) 12.0-0 (12.Rc1 Bg4=) 12...Ng6 (12...Bg4 13.d3=) 13.Rc1 (13.d4 Bf5=) 13...Bg4 14.g3 (14.h3 Bf5=) 14...Bh3 (14...Rac8 15.d3+=) 15.Re1 e4 (15...Rac8 16.Qb3+=) 16.Nd4= Qd7 (16...Rac8 17.Qb3=) 17.d3 (17.Nc6 bc6 18.d3 ed3 19.Qd3 Ne5+=) 17...Nd4= 18.Bd4 Qf5 (18...Rac8 19.Qb3 Be6 20.Qb1=) 19.de4+= de4 20.Rc5 (20.g4 Qg5+=) 20...Ne5= 21.Bf1 (better is 21.a4!?=) 21...Nf3-/+ 22.Kh1 Qe6?? (better is 22...Qd7 23.Re2 b6-/+) 23.Bc4+– Qc4 24.Rc4 Rfd8 (24...Ne1 25.Qe1 Be6 26.Rc5+–) 25.Qb1 (better is 25.Re2!? Bg4+–) 25...Ne1 26.Qe1 Bg4 27.Kg1 Rac8 (27...Be6 28.Rc7+–) 28.Qc3 (better is 28.Rc8 Rc8 29.Qd2 Be6+–) 28...Rc4 (28...Kh8 29.Rc5 Rf8 30.Qb3+–) 29.Qc4 Kh8 30.Qb3 (30.Qf7 Bh3 31.g4 Rc8+–) 30...Bf3 (30...Rc8 31.Qb2 Bh3+–) 31.Qc4 (31.Qc2 Re8+–) 31...h5?? (31...Bg4 32.Qf7 Bh3+–) 32.Qc7+– Rd5 (32...Re8 33.Kf1 b5 34.Qc6+–) 33.Qb7 Rg5 34.h4 Rf5 (34...Rb5 35.Qa6 Rb8+–) 35.Qc8 Kh7 36.Qf5 1–0. Reimer,Karl – Waibel,Dieter, 75 sen. PSB (Pfalz) ch–Senioren, 2006.

    8.d3 Be6 9.Nf3 a6 10.Be2 0-0 11.0-0 Nd7 12.Rc1 Rc8 13.Qd2 b5 14.Rc2 Qb6 15.Rfc1 Rc7 16.Nd1 Rfc8 17.Rc7 Rc7 18.Rc7 Qc7 19.Qc3 Qc3 20.Nc3 Kf7 21.h3 Nc6 22.Kf1 h6 23.Ke1 f5 Black plans e4 24.Kd2 e4 25.de4 de4 26.Ne1 Be5 27.Nc2 Nb6 28.Kc1 Nc4 29.Bc4 Bc4 30.g3 Ke6 31.h4 g5 32.hg5 hg5 33.Nd1 Bb2 34.Nb2 Bb3 35.Na1 Bd5 36.Nc2 Bb3 37.Na1 Ba2 38.Nc2 Kd5 39.Kd2 Bb3 40.Na1 Ba2 41.Nc2 Bb3 42.Na1 Bc4 43.Nc2 Bb3 ½–½. Fournier,Frederic – Guest1137494, Partie amicale, 3m + 2s, 2008.

    8.Qh5+= Kf8 9.Nb5 a6 (9...g6 10.Qf3 Kg7 11.Nd6 Qd6 12.d4=) 10.Nd6 Qd6 11.d4 e4 12.Rc1 Be6 (12...Bd7 13.Nh3+=) 13.Ne2 Nbc6 14.Nf4 g6 15.Ne6 Qe6 16.Qh6 (16.Qd1 Kg7+=) 16...Kf7 17.Be2 Nf5 18.Qf4 (18.Qh3 Rac8+=) 18...Rhc8= 19.0-0 (19.Bg4 Nce7=) 19...b6 (19...h5 20.g4 hg4 21.Qg4+=) 20.Rc3+= Qd7 (20...h5 21.Rfc1+=) 21.Rfc1 (21.f3 Nd6+/–) 21...Nd6 (21...Nce7 22.Qg4+=) 22.Qh4 (22.Qh6 Kg8+=) 22...Kg7+= 23.h3 (23.f3 ef3 24.gf3 b5=) 23...Nf5 (23...b5 24.Qg3=) 24.Qf4+= Nd6 25.f3 (25.h4 b5=) 25...Kf7 (25...b5 26.Rc5 Ne7 27.Bc3+=) 26.Qh4 (26.R3c2 b5+/–) 26...Kg7 27.R3c2 (27.Qg3 ef3 28.Bf3 Ne4 29.Be4 de4+/–) 27...Nf5 (27...Ne7 28.Qf4+=) 28.Qf2 White gets strong initiative 28...ef3 (28...Nd6 29.Qg3+=) 29.Bf3 (29.Qf3 b5+=) 29...Nce7 30.e4 de4 31.Be4 Rc2 32.Rc2 Rc8 (32...Rd8!?+=) 33.Rc8+/– Nc8 (33...Qc8 34.d5 Qc7 35.g4 Qg3 36.Qg3 Ng3 37.Bf3+–) 34.d5+– h5 (34...Ncd6!? 35.Bd3 Qe7+/–) 35.g4 hg4 36.hg4 Qe7 37.Bf5 (better is 37.Bd3!? Qe3 38.Bf5 (38.gf5?! Qd3 39.fg6 Qg6 40.Qg2 Qg2 41.Kg2 Ne7=; 38.Ba6?! Qg5+/–) 38...Qf2 39.Kf2 gf5 40.g5+–) 37...gf5+/– 38.gf5 (38.Qf5?! Qe1 39.Kg2 Qd2 40.Qf2 Qd5 41.Kg3 Qd3 42.Qf3 Qd6 43.Kh3 Ne7=) 38...Kf8 (38...Qd6 39.Qg2 Kf8 40.Qg6+/–) 39.Qd4+– Qe1 40.Kg2 Qe2 41.Kg3 Qe1 42.Kf3 (42.Qf2 Qe7 43.Qf3 Nd6+/–) 42...Qh1 (42...Qf1!? 43.Ke3 Qe1 44.Kd3 Qd1 45.Kc3 Qd4 46.Kd4 Nd6+=) 43.Kf2+– Qh2 44.Ke3 Qh3 45.Kd2 Qf5 46.Qf6 Qf6 47.Bf6 Kf7 (47...b5 48.Kc3+–) 48.Bg5 b5 49.Kd3 Ke8 (49...Nb6 50.Kd4 Nd7 51.Bf4+–) 50.Kd4 Nd6 (50...Kd7 51.Kc5+–) 51.Kc5 Ne4 52.Kb6 Ng5 53.Ka6 Kd7 54.Kb5 Ne4? (54...Kd6 55.Kc4+–) 55.Kc4 Kd6 56.Kd4 (56.b5 Nf6+/–) 56...Nf6= Attacks the isolani on d5 57.a4 Nd5 58.b5 Nc7 59.Kc4 Nb5 60.ab5 ½–½. Rosner,Dirk – Greiner,Matthias, DESC, 2000.

    8.Qh5 Kf8 9.Nb5 g6 10.Qd1 Kg7 11.Nf3 a5 12.Nd6 Qd6 13.b5 Bg4 14.Be2 e4 15.Nd4 Be2 16.Ne2 Nd7 17.0-0 Ne5 18.Nf4 Nf5 19.a4 Nc4 20.Bc1 Rhd8 21.d3 ed3 22.Qd3 Rac8 23.Qd5 Qd5 24.Nd5 Rd5 25.e4 Re5 26.ef5 Rf5 27.Rd1 Rc7 28.g4 Rfc5 29.Bf4 Ne5 30.Be3 Rc3 31.Kg2 Ng4 32.Bb6 Re7 33.Ba5 Rb3 34.Rab1 Rb1 35.Rb1 h5 36.Bb6 Ne5 37.a5 Nc4 38.Bc5 Rc7 39.Bb4 Kf7 40.a6 ba6 41.ba6 Ra7 42.Ra1 Ke6 43.f4 g5 44.Bc5 Ra8 45.a7 Kd5 (45...gf4? 46.Rb1 Kd5 47.Rb5+–) 46.Bg1 gf4 47.Kf3 Ne5 48.Kf4 Kd6 49.Ra6 Nc6 50.Kf5 Kc7 51.h4 Kb7 (51...Ne5 52.Ra3 Nd7+–) 52.Rb6 Kc7 53.Kf6 Na7 54.Ra6 1–0. Szabo,Almos (2310) – Dumitrica,Sorin, 2nd Romanian Team Championship, 2006.

    8.Qh5+= Kf8 9.Nb5 g6 10.Qf3 Kg7 11.Nd6 Qd6 12.d4 =.

    8.Qh5 g6

    9.Qf3+/– a5 10.ba5 Rf8 11.Nd5 Nd5 12.Qd5 Ra5 13.Qb3 +/–.

    9.Qf3+/– 0-0

    10.Nd5 Nbc6 11.Bc4 Be6 12.b5 Na5 13.Ba2 =.

    10.Nd5 Nbc6 11.Bc4 Kg7 12.Ne7 (12.Ne2 Be6 13.e4 a5+/–) 12...Qe7+= 13.Bd5 Be6 14.Be6 Qe6 15.Ne2 (better is 15.e4!?+=) 15...e4+= 16.Qh3 Qh3 17.gh3 Be5 (17...Ne5 18.Be5 Be5 19.Rd1+=) 18.Be5 (18.Bc3 Rfe8=) 18...Ne5 (worse is 18...fe5 19.Nc3+/–) 19.Nd4 Kf7 (19...Rae8 20.f3 f5 21.0-0=) 20.Ke2 Rfc8 (20...Rfd8 21.Rhf1=) 21.Rhc1 (21.f3 ef3 22.Nf3 Nf3 23.Kf3 Rc2+=) 21...Ke7 (21...Nd3 22.Rg1 Rc4 23.f3 Nf4 24.ef4 Rd4 25.fe4 Re4 26.Kf3=) 22.Rc3 (22.f3!? f5 23.fe4 fe4 24.Nb5+=) 22...Rc3= 23.dc3 Rc8 24.Rc1 (24.Kd2 Nc4 25.Kc2 f5=) ½–½. Margraf – Unzicker, Simultan, 1987.

    10.Nd5 Nbc6 11.Bc4 Kh8 12.Rc1 (worse is 12.Nf6 Kg7 13.Nh5 gh5 14.Qh5 Rf5=) 12...Bd7 (12...Be6 13.Ne7 (13.Nf6 Bc4 14.Rc4 Ng8-/+) 13...Qe7 14.Ne2+/–) 13.Ne2 (13.Nc3 Nf5+/–) 13...Rb8 (13...b5!? 14.Ne7 Ne7+/–) 14.0-0 (14.Ndc3 Nc8+–) 14...Rc8 (14...b5 15.Bb3+/–) 15.d4 (15.d3 Nd5 16.Bd5 Qb6+–) 15...Nd5 (15...ed4 16.ed4 (worse is 16.Nd4 Ne5 17.Qe2 Rc4 18.Rc4 Nd5=; worse is 16.Bd4 Ne5 17.Be5 fe5 18.Ne7 Rf3 19.Nc8 Rf6 20.Nd6 Rd6+=) 16...Nf5 17.Rfd1+–) 16.Bd5 f5 (16...Qb6 17.Qg3+–) 17.de5 Be5 18.Be5 Ne5 19.Qg3 Nf7 (better is 19...Re8+–) 20.Bb7 Rc1 21.Rc1 (21.Nc1?! Bb5 22.Re1 Qd2+/–) 21...Qb6 22.Qc7 Qe6 (22...Rd8 23.Nd4+–) 23.Qc5 Re8 (23...Kg8 24.Qa7 Qa2 25.Nf4+–) 24.Bd5 (24.Qd4 Kg8 25.Bd5 Qe7+–) 24...Qe7 (24...Qf6 25.Qa7 Ne5 26.Rc7+–) 25.Qd4 Kg8 26.Rc7 Rc8 (26...Rd8 27.Ra7 Kf8+–) 27.Bf7 (27.Bf7 Kf7 28.Rd7+– (28.Qd7?! Rc7 29.Qd1 Qd7=)) 1–0. Rosner,Dirk – Reussner,Hans_Dieter, DESC, 2000.

    10.Nd5 Nbc6 11.Nf6 Kg7 12.Nh5 gh5 13.Qh5 Ng6 +=.

    10.Nd5 Be6? 11.Nf6+– Kg7 (11...Kh8 12.Qb7 Nbc6 13.Ne4+–) 12.Qb7 Rf6? (12...Nbc6 13.Ne4 a5+–) 13.Qa8 Qb6 14.Qe4 Bd5 15.Qg4 Nd7 (15...a5+–) 16.Qd7 Bc6 17.Qh3 (17.Qg4 a5 18.f4 Qb8+–) 17...a5 18.f4! ab4 (18...ef4 19.Bf6 Pinning (19.Bf6 Deflection)) 19.fe5 ba3 (19...Rf1 20.Kf1 ba3+–) 20.ef6 (20.ed6?! Qb2 21.Rd1 a2+/–) 20...Kg8 21.Bc4 (21.Qe6 Kf8 22.Qd6 Qc7 23.Qc7 Nd5 24.Ba3 Ne7 25.Qe7 Kg8 26.Qf8) 21...Bd5 22.fe7 Be7 (22...Qb2 23.Qc8 Kf7 24.Qf8 Ke6 25.e8Q Be7 26.Qee7) 23.Bd5 Kf8 24.Qf3 1–0. marus1 – spok, internet, 2001.

    6.Nf3 Ne7

    7.Nc3 0-0 8.Rc1 Be6 9.Qb3 Nd7 10.Be2 Bf7 (10...Qb6 11.cd5 Nd5 12.Bc4+=) 11.d3 b5 12.cd5 (12.cb5? d4 13.Qa4 Nb6–+) 12...a6 (12...a5 13.e4=) 13.Qc2 (13.Ne4 Bd5 14.Qd1 Bc7=) 13...cd5 (worse is 13...Nd5 14.Ne4 Be7 15.Qc6+=) 14.g4 (14.0-0!?=) 14...Rc8-/+ 15.Qd2 Ng6 16.h4 d4 17.Ne4 de3 18.fe3 Bc7 19.Ng3 (19.h5 Ne7=) 19...Ne7 20.Nf5 Nd5 (20...Be6 21.e4+=) 21.Bd1 Re8 22.Bb3 N7b6 23.Kf2 (23.0-0 e4 24.N3d4 ed3 25.Qd3 Be5+=) 23...Be6 24.Rc6 (24.Ke1 Kh8+=) 24...Kh8 (24...g6 25.Rg1-/+) 25.Qc2 (25.Rhc1 g6 26.Nh6 Kg7+=) 25...Bf5 (25...g6 26.Nh6 Kg7 27.g5-/+) 26.gf5 Ne7 27.Be6 (27.Rc5 Nd7 28.Rc3=) 27...Nd7?? (better is 27...Nc6 28.Bc8 Nb4 29.ab4 Qc8-/+) 28.Rc3= (28.Ra6? e4 29.Qe2 ef3 30.Kf3 Nb8–+) 28...Bb6 (28...Bd6 29.Rc8 Nc8 30.Ke1=) ½–½. Rosikiewicz,Wieslaw(+) – Maciejewski,Roman, corr 1AMM Poland, 1991.

    7.Nc3 Be6 8.Qb3 Nd7 9.Rc1 0-0 10.cd5 cd5 (10...Nd5 11.d4=) 11.Nb5 Bb8 12.Be2 a6 13.Nc3 Bd6 14.Na4 (14.d4 Bf7=) 14...Rc8 15.0-0 (15.Rc8 Qc8 16.d4 e4=) 15...Bf7 (15...b5 16.Nc3=+) 16.d4 e4 17.Nd2 b5 18.Nc5 Rc6 (better 18...Nb6=) 19.Nb7 (better 19.a4 ba4 20.Qa4+/-) 19...Bh2-/+ 20.Kh2 Qb8 21.g3 (21.Kg1 Qb7 22.a4 ba4 23.Qa4 Rb6=+) 21...Qb7 22.Rc6 Nc6 23.f3 Nb6 24.Qc2 (24.fe4 de4 25.Qc2 Nd5-/+) 24...ef3 (24...Rc8 25.Qb1-/+) 25.Bf3 Nc4 26.Nc4 bc4 27.e4 Qd7 (27...Ne7-/+) 28.Qg2? (28.ed5 Bd5 29.Bd5 Qd5=+) 28...Rd8 (28...Nd4 29.Bd4 de4 30.Be4 Qd4 31.Qc2-+) 29.Rd1 de4 30.Be4 Bd5 31.Bc3 (31.Bd5 Qd5 32.Qd5 Rd5-/+) 31...Ne7-+ 32.Qf3 (32.Rc1 Qc6 33.Bd5 Nd5-+) 32...Be4 33.Qe4 Nd5 34.Bd2 Re8 35.Qf3 c3! 36.Bc1 (36.Bc3 Re3 Double attack (36...Re3 Decoy)) 36...Qe6 37.Rf1 (37.Kg2 Qc6 38.Kf2 Qc4-+) 37...Qe2 38.Rf2? (38.Qe2 Re2 39.Kh3-+) 38...Qf3 39.Rf3 Re2 (better 39...Re1!? 40.Rf5 Ne7 41.Rc5 Rc1 42.d5-+) 40.Kh3 (40.Kg1-+) 40...Re1 41.Bf4 (41.Rc3 Nc3 42.Bd2 Rh1 43.Kg2-+) 41...c2 42.Rc3 (42.Kh2 Re2 43.Kg1 Nf4-+) 42…Nc3 0-1. pacal56 (2255) - mecker (2140), Rated Blitz game, lichess.org, 2014.

    7.Nc3 Be6 8.cd5 Nd5 9.d4 Nc3 10.Bc3 e4 11.Nd2 Bd5 12.Bc4 Qe7 13.Bd5 cd5 14.Qb3 Qe6 15.b5 0-0 16.Bb4 f5 17.Bd6 Qd6 18.0-0 Nd7 19.Rac1 Rac8 20.g3 Nf6 21.Qb4 Qd7 22.b6 ab6 23.Qb6 Rc1 (23...Rfe8 24.Rc8 Rc8 25.Rb1=) 24.Rc1 Rc8 25.Rc8 Qc8 26.Nb3 Qc2 27.Qe6 Kf8 28.Nc5 Qd1 29.Kg2 Qf3 30.Kg1 Qd1 ½-½. Domingo Garcia,J (2145) - Arias Boo,G (2190), TCh-CAT Gp1 (2), 2020.

    7.Nc3 Bg4 8.cd5 cd5 9.Be2 Nbc6 10.0-0 Rc8 11.d4 e4 12.Nd2 Be6 13.Rc1 Bb8 14.Nb3 Qd6= 15.g3 Bf7 16.Nc5+= b6 17.Nb5 Qd8 18.Na6 Qd7 19.Bg4 f5 20.Be2 0-0 21.Rc3 g5 22.Kh1 g4 23.Qd2 h5 24.Rc2 h4 25.Rfc1 Bd6 26.Nd6 Qd6 27.b5 Na5+= 28.Rc8 Rc8 29.Rc8 Nc8 30.Qc3 Qd8 31.Qc7 Qc7=+ 32.Nc7 Nc4 33.Bc4 dc4 34.gh4 Kf8 35.Kg2 Ke7 36.Kg3 Nd6 37.a4 Kf6 38.Kf4+/– Nb7 39.Na6 Nd6 40.Nb4 c3 41.Bc3 Bb3 42.d5 Kg6 43.Ke5 Nf7 44.Ke6 Ba4 45.h5! (45.h5 Kh5 46.Kf7 Bb5 47.Nc6+–) 1–0. algernon (2115) – olutayo (2010), net–chess.com, 2004.

    7.d3 0-0 8.Be2 Kh8 9.0-0 Be6 10.Nbd2 Nd7 11.e4 f5 12.cd5 cd5 13.ed5 Nd5 14.Nc4 Bc7 15.Nce5 Nf4 16.d4 Bd5 17.Rc1 Ne5 18.de5 (18.Ne5? Bg2 19.Bf3 Bf1 20.Qf1 Be5 21.de5 Nd3-+) 18...Bb6 19.Bc4 Bc6 20.b5 Be4 21.Qd8 Rad8 22.Rcd1 (22.e6!? Bf3 23.e7 Ng2 24.Rc3+/-) 22...Rc8 23.Bb3 Rfe8 24.a4 h6 25.Rfe1 Bc2 26.Bc2 Rc2 27.Rd2 (27.Bd4 Ne2 28.Kf1 Nd4 29.Nd4=) 27...Rc4?? (better 27...Rd2 28.Nd2 Nd3-/+) 28.g3+/- Nh3 29.Kg2 Ng5 (better 29...Nf2 30.Rf2 Bf2 31.Kf2 Ra4+/-) 30.e6?? (better 30.Ng5 hg5 31.Ree2+-) 30...Ba5 (better 30...Nf3!? 31.Kf3 Ba5-/+) 31.Rd7= White prepares the advance e7 31...Nf3 32.Kf3?? (better 32.Re2 Ne1 33.Kf1+=) 32...Be1-+ 33.Rg7?? (better 33.Bg7 Kg8 34.Bh6 Re6 35.Be3-+) 33...Bc3 34.Rb7 Bb2 35.e7 (35.Ra7 Bd4 36.Rf7 Ra4-+) 35...Kg7 36.Ra7 Kf7 (36...Bd4 37.Rd7 Ra4 38.h4-+) 37.Rd7 (37.Ra5 Ke7 38.Ra6 Rc2 39.Rh6 Bd4-+) 37...Re7 38.Rd5 Ra4 39.Rf5 Kg7 40.Rf4 Bf6 (better 40...Rf4 41.Kf4 Rb7-+) 41.Ra4= Rb7 42.Rb4 Kg6 43.b6 Be7 44.Rb5 Kf7 45.Ke4 Ke6 (45...Bd8 46.f4=) 46.Kd4 (better 46.g4!?+/-) 46...Kd7= 47.Kc4 Bd6 48.Kd5 Be7 49.f4 Bd6 50.f5 Rb8 51.f6 Re8 52.f7 Re5 53.Kc4 Re4 54.Kb3 Re1?? (54...Re3 55.Ka2 Re2 56.Kb1 Re1 57.Kc2=) 55.Kc2 (better 55.Rd5 Rb1 56.Kc2+-) 55...Rc1?? (better 55...Rf1=) 56.Kc1+- Be7 57.Rd5 (57.Rd5 Kc6 58.Re5+-) 1-0. cipiripi (2430) - AntoineBriet (2560), Rated Blitz game, lichess.org, 2016.

    7.d3 Be6 8.Be2 Nd7 9.0-0 0-0 10.Nbd2 a5 (10...b6 11.cd5 cd5 12.Qb3=) 11.Qb3 (11.c5 Bc7=) 11...c5 12.b5 a4 13.Qc2 Nb6 14.e4 d4 15.Nh4 (15.Rae1 Qe8=) 15...f5 (15...Qe8 16.Bc1+=) 16.Ndf3 (16.Rae1 f4=) 16...fe4 17.de4 (17.Ng5 Qd7=) 17...h6 18.h3 (18.Bd3 Qd7+=) 18...Qe8 (18...g5 19.Nf5 Nf5 20.ef5 Bf5 21.Bd3 Bh3 22.Be4-/+) 19.Nh2 (19.Nd2 Qf7+=) 19...Qf7 (better is 19...Rd8-/+) 20.Bg4? (better is 20.Rac1-/+) 20...Bc4–+ 21.Be2 Be2 (21...Bb3 22.Qb1–+) 22.Qe2 c4 23.Bc1 c3 (23...Rac8 24.Rb1–+) 24.Qg4 Kh7 25.f4 (25.N2f3 Ra5–+) 25...ef4 26.N2f3 (26.Rd1 Bc5 27.Kh1 Rad8–+) 26...d3 27.e5 (27.Rd1 Qc4 28.Kh2 Rad8–+) 27...Bc5 28.Kh1 Nbd5 (28...g5 29.e6 Qg7 30.Qh5–+) 29.e6 (29.Rd1 d2 30.Nd2 Ne3–+) 29...Qf6 30.Nh2 (30.g3–+) 30...d2 31.Bd2 cd2 32.N2f3 (32.Qe2 Qh4 33.Nf3 Nf5–+) 32...Be3 (better is 32...Ne3!? 33.Qh5 Nf1 34.Rf1 Ba3 35.Nd2–+) 33.Ra2 Nc3 34.Rc2 (34.Rd2 Ne4 35.Rdd1 Ng3 36.Kh2 Nf1 37.Rf1 g5–+) 34...Ne4 (better is 34...d1Q 35.Rd1 Nd1 36.Ne5 Nf2 37.Rf2 Bf2 38.Qd1 Qh4 39.Nf3–+) 35.Rc4 (35.Nd2 Nf2 36.Rf2 Bf2 37.Nf1 Bh4 38.Rc7–+) 35...Ng3 (35...Ng3 36.Qg3 fg3–+) 0–1. Goldmund,Heike – Hase,Pavel (2275), FICGS, 2014.

    7.d4 e4 8.Nfd2 0-0 9.Be2 Be6 10.Nc3 f5 11.g3 Nd7 12.Qb3 White plans b5 12...Bf7 (12...Nf6 13.c5 Bc7 14.0-0=) 13.a4 White plans b5 (13.c5 Bc7=) 13...Rc8 (13...dc4 14.Nc4 Nb6 15.0-0=+) 14.0-0 (14.c5 Bc7=) 14...Nf6 (14...dc4 15.Bc4 Nf6 16.f3 ef3 17.Bf7 Rf7 18.Nf3=) 15.b5 (15.c5 Bc7=) 15...c5 16.Nd5 Ned5 (worse 16...Bd5 17.cd5 cd4 18.Bd4 Nfd5 19.Rac1+=; 16...Nfd5?! 17.cd5 Bd5 18.Bc4=) 17.cd5 cd4 18.Bd4 Nd5 (worse 18...Bd5 19.Bf6 Bb3 20.Bd8+/-) 19.Bc4 (worse 19.Ba7 Be5 20.Bc4 Ba1 21.Ra1 b6-/+) 19...Nb6 (19...Bc5!?=) 20.Bf7+= Rf7 21.a5 Nd7 22.Ba7 Bc5 23.Bc5 Nc5 24.Qa2 Nd3 25.a6 ba6 26.ba6 Ra8 (26...Nb4 27.Qb3 Na6 28.Ne4 fe4 29.Ra6+/-) 27.Nc4 h6 28.Rfb1 Raa7 29.h4 (29.Qa5 Qa5 30.Ra5 Rf6+=) 29...Kh7 30.h5 (30.Qa5 Qe7 31.Rb6+/-) 30...Qg5? (30...Rf6 31.Qa5 Qa5 32.Ra5 Raa6 33.Rd5=) 31.Qe2 (better 31.Nd6 Rf8 32.Nb5+-) 31...Rfc7 32.Nd6 (32.Nb2 Ne5 33.Kg2 Nf3=) 32...Rc6 33.Nb5 Raa6 34.Ra6 Ra6 35.Nd4 Rd6 (35...Qf6!?=+) 36.Rb8= Ra6 37.Qd1 (better 37.Rb1=) 37...Ra2?? (better 37...Qg4 38.Qg4 fg4=+) 38.Qb1 (better 38.Ne6 Ra3 39.Ng5 hg5 40.Qb1+-) 38...Rf2-+ 39.Rh8 Kh8 40.Qb8 Kh7 41.Ne6 Qe7 (better 41...Qh5 42.Nf8 Kg8 43.Ng6 Kf7 44.Nh8 Ke6 45.Qb6 Kd5 46.Qb5 Nc5 47.Kf2 Qf3 48.Ke1 Qe3 49.Kf1 Qf3 50.Ke1 Qg3 51.Kf1 Qf3 52.Kg1 Qg4 53.Kh2 e3-+) 42.Nf8= Kg8 (42...Qf8 43.Qf8 Rf3 44.Qd6=) 43.Ng6+= Kf7 (43...Kf7 44.Ne7 Ke7+/-). jhonores (2190) - henryestrada (2350), Rated Blitz game, lichess.org, 2020.

    7.d4 Bg4 8.Nc3 (8.cd5 cd5 9.de5 Be5=) 8...e4+= 9.h3 Bh5 10.g4 Bf7 (worse is 10...ef3 11.gh5 dc4 12.Bc4+/–) 11.Nd2 Nd7 12.c5 Bc7 13.a4 White intends b5 13...f5 14.b5 fg4 (14...0-0 15.f4+=) 15.Qg4 Ng6 16.Nb3 0-0 17.a5 Nf6 18.Qg5 h6 19.Qg1 Nh4 20.Be2 Bh5 21.a6 Qc8?? (better is 21...Be2 22.Ke2 Rb8-/+) 22.ab7 Qb7 23.Na5?? (better is 23.Bh5 Nh5 24.Qg4 Nf3 25.Kd1=) 23...Ba5–+ 24.Ra5 Be2 (24...Bf3!?–+) 25.Ke2-/+ Nf3 26.Qa1 Qd7 27.b6 a6 28.Bc1? (28.Ra6 Ra6 29.Qa6 Qf5+=) 28...Qb7 (28...Qf5 29.Rd1–+) 29.Na2 (29.Qa4 Nh7+=) 29...Nd7 (29...Qf7!? 30.Nb4 Nd7 31.Nc6 Ng1 32.Kd2 Qf2 33.Kc3 Qg2 34.Ne7 Kh7 35.Rg1 Qg1 36.Nd5 Rf1–+) 30.Nb4 The isolani on a6 becomes a target 30...Nb8 31.Qa4? (31.Bb2 Qf7 32.Bc3 Qh5-/+) 31...Rf6 (better is 31...Qf7 32.Nc6 Ng1 33.Kd1 Qf3 34.Kc2 Nc6 35.Qc6 Qh1 36.Qd5 Kh8–+) 32.Bd2 Nd2 33.Kd2 Rf3 (better is 33...Rf2!? 34.Kc1 Re2-/+) 34.Ke2 Qf7 35.Rh2 (35.Nc6?? Rf2 36.Ke1 Qf3–+) 35...Qb7 (35...Qg6 36.Qa1= (36.Na6?? Qg1 37.Qa1 Qh2–+)) 36.Qa1 Kh7 37.Qg1 Qf7 38.Qg4 Rf6 39.Rg2 g5 (39...Rf5 40.Kf1+=) 40.Qc8 Qf8?? (40...Re6+/–) 41.b7 (better is 41.Qb7 Qf7 42.Qa8 Qh5 43.Ke1 Qh3 44.Rg1 Rf2 45.Qb7 (45.Qb8?? Qe3 46.Kd1 Qd2; 45.Na6?? Qe3 46.Kd1 Qd2; 45.Nc6?? Qe3 46.Kd1 Qd2) 45...Kg6 46.Kf2 Qf3 47.Ke1 Qe3 48.Kd1 Qd4 49.Kc1 Qb4 50.Qb8 Qc3 51.Kd1 Qd3 52.Ke1 Qe3 53.Kf1 Qf3 54.Ke1 Qe3 55.Kd1 Qg1 56.Kc2 Qf2 57.Kb3 Qe3 58.Ka4 Qd4 59.Kb3 Qd3 60.Ka4 Qc4 61.Ka3 Qc3 62.Ka4 Qa1 63.Kb4 Qb2 64.Ka4 Qa2 65.Kb4 Qd2 66.Ka4=) 41...Ra7= 42.Qf8 (better is 42.h4 gh4 43.Ra4=) 42...Rf8-/+ 43.h4 (43.Ra3 Rf7-/+) 43...gh4–+ 44.Rg1? (better is 44.Rh2–+) 44...Rb7 45.Na6 (45.Rb1–+) 45...Na6 (45...Rb2 46.Kd1 Rb1 47.Kd2 Rg1 48.Nb8–+) 46.Ra6 (46.Rd1 Nb4 47.Rda1–+) 46...Rb2 47.Ke1 (47.Kf1 Rb1 48.Kg2 Rg8 49.Kh3 Rbg1 50.Ra7 Kh8 51.Kh2 R8g2 52.Kh3 Rf2 53.Re7 h5 54.Re8 Kg7 55.Re7 Kf6 56.Rf7 Kf7 57.Kh4 Rh2) 47...Rb1 48.Ke2 Rg1 49.Ra7 Rg7 (49...Kg6 50.Rc7 h3 51.Rc6 Rf6 52.Rc8–+) 50.Ra6 (50.Rg7 Kg7 51.Kf1–+) 50...h3 51.Ra1 h2 52.Rh1 Rg2 0–1. Hechtlinger,John (2155) – Weller,Jean Luc, Dos Hermanas Internet qual–E, 2009. (=1.a3 d5 2.b4 e5 3.Bb2 f6 4.e3 Bd6 5.c4 c6 6.Nf3 Ne7)

    7.cd5 cd5 8.Nc3 0-0 9.Nd5+= Nd5 10.Qb3 (10.Bc4 Be6 11.Qb3 Bc7+=) 10...Be6 11.Bc4 Bc7 12.e4 Nf4 (12...Qd6 13.ed5 Bf7 14.Nh4+=) 13.Be6 Kh8 14.Bd5 (14.0-0!?+/–) 14...Nc6+= 15.Bc6 Nd3 (15...bc6 16.0-0+=) 16.Kf1 (16.Ke2 Nf4 17.Kf1 bc6+=) 16...bc6 17.Ne1 (17.Bd4 ed4 18.Qd3 a5+=) 17...Nf4 (better is 17...Nb2!? 18.Rb1 Qd4+=) 18.g3+= Ng6 (18...Nh3 19.Nf3=) 19.Qd3 (19.Nf3 Qd7 20.h4 h5+=) 19...Qc8 (19...Qe7 20.Nf3+/–) 20.h4+/– Qe6 (20...Rd8 21.Qe2+/–) 21.Rc1 (21.h5 Ne7+/–) 21...Rad8 (21...Rfd8 22.Qe2+=) 22.Qc4 (22.Qe2!?+/–) 22...Qc4+= 23.Rc4 Rd2 24.Rc6 (better is 24.Bc1!? Rd6 25.Nf3+=) 24...Bb6-/+ 25.Rc2 Rfd8 26.Bc3?? (better is 26.Kg2 Rc2 27.Nc2+=) 26...Rc2–+ 27.Nc2 Rc8 0–1. Mirada,Luciano (1860) – Tomeo,Ivan (2145), 24th ProAm Copa Clarin Op, 2017.

    7.cd5 cd5 8.d3 Be6 9.Be2 0-0 10.0-0 a6 11.Nbd2 Nbc6 12.Rc1 Rc8 13.Nb3 b6 14.Qd2 Qd7 15.Rc2 h6 16.Rfc1 f5 17.g3 f4 18.ef4 ef4 19.Nbd4 fg3 20.hg3 Bg4 21.Nc6 Nc6 22.Nd4 Nd4 23.Bd4 b5 24.Bg4 Qg4 25.Rc8 Rc8 26.Rc8 Qc8 27.Qb2 Qc7 28.Kg2 Kh7 29.f4 h5 30.Qe2 g6?? 31.Qe6 Qe7 32.f5 Qe6+= 33.fe6 g5?? 34.Bf6 Kg6= 35.Bd8 g4 36.d4 Kg7 37.Kf2 Kf8 38.Bf6 Be7 39.Be5 h4 40.gh4= Bh4 41.Kg2?? Ke7–+ 42.Bg3 Bg3?? 43.Kg3+– Ke6 44.Kg4 Kf6 45.Kf4 Ke6 46.Kg5 Ke7 47.Kf5 Kd7 48.Ke5 1–0. bratek55 (1650) – bigpikus (1700), internet, 2011.

    7.Be2 0-0 8.0-0 Be6 9.d3 Nd7 10.Nbd2 Rc8 11.e4 d4 12.c5 Bc7 13.Rc1 Ng6 14.g3 Bh3 15.Re1 Qe7 16.Bf1 Qe6 17.Bg2 Rf7 18.Bh1 Nf4 19.Nf1 Ng6 20.Re2 h5 21.Ne1 h4 22.Rcc2 hg3 23.fg3 Qg4 24.Bf3= Qe6 25.Rf2 Ndf8 26.Bh5 Rd7 27.Bc1 Ne7 28.Ng2 g6 29.Bf3 Nh7 30.Rb2+= Qf7 31.Nh4 Kg7 32.Bg4 Bg4 33.Qg4 Rcd8 34.h3 Ng8 35.Nh2 Nh6 36.Qd1 Qe6 37.Bh6 Kh6 38.Ng4 Kg7 39.Qc1 g5 40.Nf5 Kg8 41.Qd1+– Rf8 42.Ngh6 Kh8 43.Qf1 a6 44.Kh2 Bd8 45.Qa1 Re8 46.Qa2 Qa2+/– 47.Ra2 Nf8 48.Rf1 Ne6+/– 49.Ng4 Rf8 50.Raf2 Kh7 51.Nfh6 Rg7? 52.Nf5 Rg6?? 53.Nd6+– Rg7 54.Nf6 Bf6 55.Rf6 Rf6 56.Rf6 Re7 57.Nf5 (57.Nf5 Re8 58.Rf7 Kh8 59.Rb7+–) 1–0. algernon (2175) – olutayo (2570), net–chess.com, 2010.

    7.Be2 0-0 8.0-0 Be6 9.d3 Nd7 10.Nbd2 Kh8 11.Qc2 f5 12.e4 Ng6 13.Rfe1 Nf4 14.Bf1 (14.ed5 cd5 15.g3 Nh3 16.Kg2 Ng5+=) 14...Qf6 (better 14...fe4!? 15.de4 d4-/+) 15.g3 fe4 16.de4 Nh3 (16...Qg6!? 17.Nh4 Qh5 18.ed5 cd5 19.cd5 Nd5+=) 17.Bh3+/- Bh3 18.ed5 Bg4 19.Re3 cd5 20.cd5 Rac8 21.Qb3 Qg6 22.Nh4 Qh5 23.Rae1 Bc7 24.f4?? (better 24.f3 Bh3 25.R3e2+/-) 24...ef4 (better 24...Bb6!? 25.Ng2 Bh3-+) 25.Re7=+ Bb6 26.Kh1 Nf6 Attacks the isolani on d5 27.d6 (27.Qd3!?=) 27...fg3-/+ 28.hg3 Bf2?? (28...Bd7 29.Rd7 Nd7 30.Re7-/+) 29.R1e5?? (better 29.Rf1 Bb6 30.Ne4+/-) 29...Qh6=+ 30.Nf1 Bd1?? (better 30...Rc6 31.Kg2 Bb6-/+) 31.Qe6 (better 31.Qd1 Bg3 32.Ng3 Qh4 33.Kg2+-) 31...Bg3!-+ 32.Ng3 (32.Qh3 Bh4 33.Rc7 Rc7 34.dc7-+) 32...Qh4 33.Kg2 Bf3!! 34.Kf3 Ne4 (better 34...Nh5! 35.Rf5 Qg3 36.Ke4 Qg2 37.Ke3 Qb2-+) 35.Rf7= Qg3 (35...Ng3 36.Rc5 Qh1 37.Kg3 Qg1 38.Kh4 Qh1 39.Qh3 Qe4 40.Qg4 Qh1 41.Kg3 Qg1 42.Kh4 Qh1 43.Kg3 Qg1 44.Kh4 Qh1=) 36.Ke4 Qg2 37.Ke3 Qg3?? (37...Qb2 38.Rc5 (38.Rb7?? Rc3 39.Kd4 Qd2 40.Ke4 Re3) 38...Qa3 39.Ke2 Qb2 40.Kd3 Qb1 41.Ke2=) 38.Ke4 (better 38.Kd2 Rg8 39.Re2+-) 38...Qg2= 39.Ke3 Qg3?? (better 39...Qb2 40.Rc5 Qa3 41.Ke2 Qb2 42.Ke3 Rce8 43.Rf8 Rf8=) 40.Ke2 (better 40.Kd2 Rcd8 41.d7+-) 40...Qg2 (40...Rc2 41.Kd1 Qd3 42.Ke1 Qd2 43.Kf1 Qg2 44.Ke1 Qg1 45.Rf1 Qf1) 41.Ke1 Qg1?? (better 41...Qb2 42.Rc5 Rce8 43.Rf8 Rf8=) 42.Ke2 (42.Kd2 Rg8 43.Re2 Qg5 44.Kd1 Qg1 45.Re1+-) 42...Qg2 (better 42...Rc2 43.Kf3 Rf7 44.Qf7 Qf2 45.Ke4 Qf7-+) 43.Ke3= ½-½. cipiripi (2420) - AntoineBriet (2480), Rated Blitz game, lichess.org, 2016.

    7.Be2 0-0 8.Qb3 Be6 9.d4 e4 10.Nfd2 f5 11.Nc3 a6 12.g3 Nd7 13.cd5 (13.c5!? Bc7 14.0-0=) 13...Nd5+= 14.Qc2 N7b6 15.Na4 (15.0-0 a5 16.Nd5 Bd5+=) 15...Na4-/+ 16.Qa4 Qe7 17.0-0 Nb6 18.Qd1 Qf7 ½–½. Ehrlich,Hans Georg (1865) – Wuestnienhaus,Andreas (1900), Muensterland Verbandsliga, 2006.

    5.c4 Be6

    6.Qb3 c6 7.d4 (7.Nc3 Ne7=) 7...dc4 (7...Nd7 8.Nd2=) 8.Bc4 Bc4 9.Qc4 ed4 10.Bd4 Nh6 (10...b5 11.Qe6 Qe7 12.Qc8 Kf7 13.Nf3=) 11.Nf3 (11.Qe6 Be7+=) 11...Nd7 (11...Qe7 12.Nc3+=) 12.Nc3 (12.0-0 Qe7+=) 12...Qe7 13.0-0 Nf7 14.Nh4 Nde5 (14...g6 15.Qb3+=) 15.Qb3 Qd7 (15...Nh6 16.Rfd1+=) 16.Ne4 (16.f4 Ng6 17.Ng6 hg6+=) 16...Be7 17.f4 Ng6 18.Ng6 hg6 19.Nc5 (19.Rad1 Qf5 20.Nc5 Nd8+/–) 19...Bc5 20.Bc5 b6 (20...Qd5 21.Qc2 Qf5 22.Qc4+=) 21.Rad1+/– Qg4 22.f5 (better is 22.h3 Qc8 23.Bd6+/–) 22...bc5?? (better is 22...Ng5 23.Rd4 Qh5+=) 23.Qe6+– Kf8 24.Rd7 (24.Rd7 Qc4 25.Rf7 Kg8 26.Qc4 Rh4 27.Qh4 Rd8 28.fg6 cb4 29.Qh7#) 1–0. Dergatscheva_Daus,Anna (2210) – Ankerst,Milka (2120), Bayern–Nordrhein–Westfalen, 2000.

    6.Qc2 dc4 7.Bc4 Qd7 8.Nf3 Nh6 9.d4 ed4 10.Nd4 Bc4 11.Qc4 Qf7 12.Qc2 0-0 13.h3 c6 14.0-0 Nd7 15.Nd2 Rad8 16.N2f3 Ne5 17.Rad1 Bb8 18.Rfe1 Nc4 19.Bc1 Kh8 20.Nf5 (better 20.e4!?+/-) 20...Nf5= 21.Qf5 Nd6 22.Qg4 Qc4?? (22...Rfe8 23.Nd4=) 23.Rd4?? (better 23.Rd6 Qg4 24.Rd8 (24.hg4? Rd6 25.g5 fg5-+) 24...Qb4 25.ab4 Rd8 26.Kf1+-) 23...Qg8 24.Red1 Nb5 25.Rd7 Rd7 26.Qd7 (26.Rd7 Nd6 27.Nh4 g6+/-) 26...Nd6? (26...Bc7 27.Qf5=) 27.Bb2 (better 27.Rd6 Bd6 28.Qd6+/-) 27...Rd8= 28.Qg4 Nb5 29.Nd4 Nd4 30.Rd4 Rd4 31.Bd4 Qd8 32.h4 h6 33.h5 Qd6 34.Qc8 Kh7 35.Qf5 Kg8 36.g3 Qd8 37.b5 cb5 38.Qb5 b6 39.Qc4 Kh8 40.Qf7 a5 41.a4 Bc7 42.Qe6 The backward pawn on b6 becomes a target 42...Qb8 43.Kg2 Be5? (43...Bd6!?+/-) 44.Bb6 Qa8 45.Kh2 Qf3 46.Qe8 Kh7 47.Qg6 Kg8 48.e4 Bd6 49.Be3 (better 49.Qf5 Qf5 50.ef5+/-) 49...Bf8?? (49...Be5 50.Ba7+=) 50.Kg1 (better 50.Qe8+-) 50...Qd1= 51.Kg2 Qa4 52.e5 Qc6 53.Kh2 Qe6 54.ef6 Qf6 55.Qf6?? (better 55.Qe4 Qf7 56.Qg4=) 55...gf6-+ 56.Bd4 Kf7 57.Ba1 Ke6 (57...a4 58.Bb2-+) 58.f4 f5?? (better 58...a4 59.Kg2 Bc5-+) 59.Kg2=+ Kd5 60.Kf3 a4 61.g4?? (better 61.Bb2=+) 61...fg4-+ 62.Kg4 Ke4 (better 62...a3 63.f5 Bd6-+) 63.f5=+ a3 64.f6 a2 65.Kg3 Kf5 66.Kf3 Ke6 67.Kg3?? (better 67.Ke3=) 67...Bd6-+ 68.Kh4 (68.Kf3-+) 68...Be5 (68...Bf4 69.Kg4 Bg5 70.f7-+) 69.f7?? (better 69.Be5 Ke5 70.f7=) 69...Bd6-+ 70.Be5 Ke5 (70...Ke5 71.Kg4 a1Q 72.Kf3 Qd1 73.Kg3 Ke4 74.Kf2 Bc5 75.Kg3 Qg1 76.Kh3 Bd6 77.f8Q Qg3; 70...Be5?! 71.f8Q a1Q 72.Qh6 Bf6 73.Kg3 Qe1 74.Kg4 Qe2 75.Kg3 Qd3 76.Kf2 Qf5 77.Kg3 Qe5 78.Kf3 Qd5 79.Kf2=+) 0-1. cipiripi (2410) - amaidel (2560), Rated Blitz game, lichess.org, 2016.

    6.Qc2 c6 7.d4 =.

    6.Qc2 Nc6 7.c5 Be7 8.Ne2 (8.b5 Nb8=) 8...Nh6 (8...Qd7 9.Ng3=) 9.d3 (9.Ng3 0-0=) 9...0-0+= 10.Nd2 a6 (10...Qd7 11.d4+=) 11.h3 (11.Nf3 Qd7+=) 11...Qd7 12.d4 Rae8 (12...Bf5 13.Qb3+=) 13.Nf3 Nf7 14.Ng3 e4 15.Nd2 a5 (15...f5 16.Be2=) 16.b5 Na7 17.a4 b6 (17...f5 18.Be2=) 18.c6 (18.Be2 f5=) 18...Qd8 19.Nh5 Bb4 (19...f5 20.Nf4 Bd6 21.Ba3=) 20.Be2 (20.Nf4 Bd6=) 20...g6 (20...Bd6 21.0-0=) 21.Nf4+= Qd6 (21...Nc8 22.Ne6 Re6 23.h4+=) 22.Ne6 (22.Bc3 Bc3 23.Qc3 Nc8+=) 22...Qe6 23.Bc3 (23.Ba3 Ba3 24.Ra3 f5=) 23...Bc3 24.Qc3 Nc8 ½–½. Haznedaroglu,Kivanc (2290) – Yeung,Chun Keung (1640), WSTT/3/06/Semifinal, 2008.

    6.c5 Be7 7.Nf3 Nc6 8.Bb5 Nh6 9.0-0 0-0 10.Bc6 bc6 11.d4 e4 12.Nfd2 Qe8 13.a4 Qg6 14.f3 ef3 15.Nf3 Ng4 16.Qe2 Qe4 17.Bc1 Rab8 18.Nc3+/– Qg6 19.b5 Bd7 20.e4 de4 21.bc6?? Bc6-/+ 22.Nh4 Qh5 23.g3 f5 24.Qa2? Kh8–+ 25.Qe6? Bh4 26.gh4 Qh4 27.Ra2 Be8 28.Ne4? Bf7 29.Qd7 Ba2 30.Qc7 fe4 31.Bf4 Rb1 32.Rb1 Bb1 33.Bg3 Qh6 34.Qe7 Qe3 35.Kg2 Qf3 36.Kh3 Nf2 37.Kh4 Qg4 0–1. Mengs – jimmyjf, ChessWorld.net, 2004.

    6.c5 Be7 7.Nf3 Nh6 8.h3 Nf7 9.Be2 0-0 10.0-0 b6 11.cb6 ab6 12.Qc2 Bd6 13.d3 Qd7 14.Nbd2 f5 15.Kh1 c5 16.bc5 bc5 17.Rfe1 e4 18.de4 (18.Qc3!? Nd8 19.Ng5=) 18...fe4-/+ (worse is 18...de4 19.Qc3 Nd8 20.Ng5+=) 19.Ng1 Ng5 20.f4 Nf7 21.Qc3 Nh6 22.Bf1 (22.Bb5! Qb7 23.a4-/+) 22...Nf5–+ 23.Ne2 Nc6 (23...Rc8 24.Kg1–+) 24.g3? (better is 24.g4 d4 25.ed4 cd4 26.Qc1-/+) 24...d4 25.ed4 cd4 26.Qc1 d3 27.Nc3? (27.Ne4 de2 28.Re2–+) 27...Ng3 28.Kg1 Bh3 (better is 28...Nf1 29.Nf1 Bf4 30.Qd1–+) 29.Re3 (29.Nce4 Qg4 30.Bg2–+) 29...Bc5 30.Kf2 (30.Kh2 Nf1 31.Nf1 Bf1 32.Rg3–+) 30...Rf4 31.Kg3 Qg4 (31...Qg4 32.Kh2 Rf2 33.Kh1 Bg2 34.Kg1 Bf3 35.Kf2 Qh4 36.Kg1 Be3) 0–1. Hess,Sophie – Sadewasser,Lucie, GER–chT U20 Wismar, 2009.

    6.d3 a5 7.c5 Be7 8.d4 ab4 9.ab4 Ra1 10.Ba1 =.

    6.d3 Ne7?? 7.Nc3?? (better is 7.c5+–) 7...c6= 8.Be2 0-0 9.Nf3 Nd7 10.0-0 a6 11.Qc2 b5 12.c5 Bc7 13.a4 Rb8 14.Ra3 (better is 14.ab5!? ab5 15.Kh1=) 14...a5+= 15.Na2 ba4 (15...ab4!? 16.Nb4 Ba5+=) 16.Ra4= ab4 17.Rb4 Rb4 18.Nb4 Ba5 19.Ba3 Bb4 20.Bb4 Qb8 21.Rb1 Qa7 22.Qc3 Qa2 23.Nd2 Rb8 (23...d4 24.Qc1 Ra8 25.Bd1=) 24.Qa3 (better is 24.Ra1!? d4 25.Qc1 (25.Ra2?? dc3 26.Bc3 Ba2–+; 25.ed4?! ed4 26.Qc1 Qd5=) 25...Qa1 26.Qa1 Rb4 27.ed4 Rd4 28.Qa8 Nf8 29.Ne4+/–) 24...Qa3+= 25.Ba3 Rb1 26.Nb1 e4 27.d4 Nb8 28.Nc3 g5 29.Na4 g4 30.Nb6 h5 31.Bb4 Kg7 32.g3 Kg6 33.Ba5 Kg5 34.Na8 Ng6 Black plans h4 35.Bc7 Nd7 36.Ba6 h4? (better is 36...Ndf8!?+=) 37.Bb7+– Ne7 38.Bd6 Nf5 39.Bf4 Kg6 40.Bc6 Nf8 41.Be8 Kg7 42.c6 hg3 43.hg3 Ne7 44.Nb6 f5 (44...Nc8 45.Nc8 Bc8 46.Bd6+–) 45.Bd6 Kf6 (45...Nc8 46.Be5 Kh6+–) 46.Nd7 ½–½. Anjos,Diovana Ferreira Do – Bartmeyer,Beatriz (1800), Umuarama BRA, JOJUPS Cup (w), 2013.

    6.Nf3 dc4 7.b5?? (better 7.Qc2=) 7...Nd7-/+ 8.a4 Nc5 9.Qc2 Be7 (9...Ne7!?-+) 10.Bc4=+ Bc4 11.Qc4 Nd3 12.Ke2 Nb2 13.Qb3?? (better 13.Qc2 Qd7 14.Rc1=+) 13...e4-+ 14.Nd4 Nd3 15.Ne6 Nc5 16.Ng7 (16.Nc5 Bc5 17.Rc1 Be7-+) 16...Kd7 (better 16...Kf8!? 17.Ne6 Ne6 18.Qe6 Qd3 19.Kd1-+) 17.Qc4 Nh6 18.Nc3 Qg8 19.Qg8 Rhg8 (19...Ng8?! 20.Nf5 Bd6 21.Ng3-+) 20.Nh5 Rg2 21.Nf4 Rg5 22.h4 Rf5 23.a5 c6 24.a6 ba6 25.ba6 (25.bc6 Kc6 26.f3 Rf4 27.ef4 ef3 28.Kf3 Nf5-+) 25...Bd6 26.Nh3 Rg8 27.Rhg1 Rh5 28.Rg8 Ng8 29.Rg1 Ne7 30.Rg4 (30.f3 Rh4 31.Nf2 f5-+) 30...f5 31.Rg7 (31.Rg2 Rh4 32.Ng5 Na6-+) 31...Rh4 32.Ng5 (32.Nf4 Bf4 33.ef4 Ne6-+) 32...Rg4 33.f3 ef3 34.Kf3 h6 35.Ne6 Ne6 36.Rg4 fg4 37.Kg4 c5 38.Nb5 (38.Kh5 Be5 39.Nb5 Kc6-+) 38...Nc6 39.Kf3 Nb4 (39...c4 40.Nc3-+) 40.d3 (40.Na7 Na6 41.Nb5 h5-+) 40...Na6 41.Na7 Nb4 42.d4 (42.Nb5 Nd3 43.Nc3 c4-+) 42...c4 (better 42...cd4 43.Nb5 Ng5 44.Kf2 d3-+) 43.d5 (43.Nb5 Ng5 44.Ke2 Nd5-+) 43...Nc7 (43...Nd4 44.ed4 c3 45.Nc6 c2 46.Kf2 Nd5 47.Nb4 Nb4 48.Ke2 c1Q 49.d5 Qc2 50.Kf3 Qd2 51.Kg4 Qf4 52.Kh5 Qg5) 44.Nc6 Ncd5 45.Nd4 1-0. BeepBeepImAJeep (2600) - kingston_1972 (2555), Rated Bullet game, lichess.org, 2015.

    6.cd5 Bd5

    7.Nc3 Bc6 8.Nf3 Ne7 9.Be2 0-0 10.d4 ed4 11.Qd4 Bf3 12.Bf3 c6?? (12...Nbc6 13.Qc4 Kh8 14.Ne4+=) 13.0-0?? (better is 13.Rd1+–) 13...Nf5 (13...Qc7!? 14.h3 Rd8 15.Qc4 Kh8=) 14.Qc4+/– Kh8 (14...Rf7 15.Bg4 g6 16.Rad1+/–) 15.Rfd1 (15.Qe6!? g6 16.Ne4+/–) 15...Qc7+= 16.h3 Bh2 17.Kf1 Be5 18.Rd2 Nd6 19.Qe2 (19.Qh4 a5 20.Rad1 ab4 21.ab4 Qe7=) 19...Rd8 20.Rad1 Na6 21.Na4 b5 22.Be5 ba4?? (better is 22...fe5 23.Bg4 Nc4+/–) 23.Qa6 (better is 23.Bd6!? Qb6+–) 23...Qe7 (23...fe5 24.Qc6 Qc6 25.Bc6 Nf7 26.Ba8 Ra8+–) 24.Bd6 (24.Bd6 Qe6 25.Qa4+–) 1–0. Fournier,Frederic (1725) – Papa_Gena, ChessOK.com, 2012.

    7.Nc3 Be6 8.Ne4 =.

    7.Nc3 Ne7 8.Nd5 Nd5 9.Bc4 (9.d4 ed4 10.Bd4 Nc6+=) 9...Nb6= 10.Bb3 Nc6 (10...a5 11.b5=) 11.Ne2 Ne7 (11...e4 12.Qc2 Qe7 13.Nc3+=) 12.Ng3 Qd7 13.Qc2 (13.Qh5 Ng6+=) 13...Rc8 (13...a5 14.ba5 Ra5 15.Ne4=) 14.0-0 (14.d4 Rd8+=) 14...Qc6 (14...c5!?=) 15.Qc6+/– Nc6 16.Rac1 Ne7 (16...Rd8 17.d3+=) 17.Be6 White fights for the Initiative 17...Rd8 18.Nh5 Kf8 19.e4 (19.Bb3 a5 20.ba5 Nd7+=) 19...Nd7 (19...a5 20.Bc3=) 20.Rfd1 c5 (20...a5 21.d4 (21.ba5?! Nc5 22.Bg4 Nd3=) 21...ed4 22.Bd4 ab4 23.ab4+/–) 21.Bd7 Rd7 (21...cb4!? 22.Be6 ba3+/–) 22.bc5+/– Bc7 23.Ng3 Nc6 24.Nf5 g6 (24...Kf7 25.Ne3+/–) 25.Ne3 Nd4 (25...Kf7 26.Nd5+/–) 26.Kf1 Kf7 27.Rc4 (27.Nd5 Ne6+/–) 27...Nb3 28.Nd5 Rc8 (better is 28...Rhd8+/–) 29.Rb4 (better is 29.c6 Ba5 30.cd7 Rc4 31.d3+–) 29...Nc5= 30.d4 Ne4 (30...ed4 31.Rdd4 (worse is 31.Rbd4 Be5-/+) 31...Be5 32.Rdc4=) 31.de5+= Rcd8?? (31...Nc5 32.ef6 Rcd8-/+ (worse is 32...Bh2 33.g3+/–)) 32.e6+– (32.Re4?! Rd5 33.Rd5 Rd5 34.e6 Ke8 35.Bf6 b5+/–) 32...Ke6 33.Nc7 (33.Re4?! Be5 34.Be5 fe5 35.Nc7 Kf5 36.Rd7 Rd7+–) 33...Kf5 (33...Kf7 34.Rd7 Rd7 35.Rb7 a6+–) 34.Rb5 Kf4 (34...Kg4 35.f3 Kh4 36.Rbd5 (36.fe4?! Rd1 37.Ke2 R8d2 38.Ke3 Rd3 39.Kf2 R1d2 40.Ke1 Rd1 41.Ke2 R1d2 42.Kf1 Rd1 43.Ke2 R3d2 44.Kf3 Rd3 45.Ke2=) 36...Rd5 37.Nd5+–) 35.Ne6 (35.Ne6 Kg4 36.Rd7 Rd7 37.f3 Kh4 38.fe4+–) 1–0. Popkirova,Kalina – Kessler,Katrin, Schleswig Holstein–ch U20 Girls, 1996.

    7.Nc3 Ne7 8.Qg4 f5 9.Qg3 f4 10.Qg7 Rg8 11.Qh7 Bf7+–.

    7.Nc3 Ne7 8.Qg4+= g6 9.Nd5 Nd5 10.Qe6 Ne7 (10...Be7!? 11.Bc4 c6+/–) 11.Qf6+– Rf8 12.Qh4 Qd7 (12...a5 13.Nf3+–) 13.Nf3 Nf5 (13...Qf5 14.d3+– (14.Qh7?! e4 15.Nh4 Qf2 16.Kd1 Rf7+=)) 14.Qe4 Qc6 15.Qc6 Nc6 16.h4 0-0-0 17.h5 (17.b5 Na5 18.Ne5 c5+–) 17...Be7 (17...Rde8 18.Ng5 Rh8 19.Bb5+–) 18.hg6 (18.Be5?! Ne5 19.Ne5 Bf6+/–) 18...hg6 19.b5 (19.Ne5 Ne5 20.Be5 Bd6+–) 19...e4 20.bc6 ef3 21.cb7 Kb8 (21...Kb7 22.Rb1 Kc6 23.gf3+–) 22.Rh7 Bf6 23.Bf6 Rf6 24.Rc1 Rfd6 (24...Rb6 25.Rhc7 Rb7 26.Rb7 Kb7 27.gf3+–) 25.g4 R6d7 (25...Ne3 26.de3 c5 27.Rf7+–) 26.Rd7 (26.gf5?! Rh7 27.fg6 Rh6=) 26...Rd7 27.gf5 gf5 28.Rc6 Rd5 (28...Rg7 29.Rf6+–) 29.Ba6 Ra5 (29...Rd6 30.Rd6 cd6 31.d3+–) 30.Rg6 Ra6 31.Ra6 Kb7 32.Rf6 (32.Rf6 Kc8 33.Rf5+–) 1–0. Woelfelschneider,Peter – Seelisch, 2009.

    7.d4 A) 7...Ne7 8.de5 fe5 9.Nf3 Nd7 (9...Nbc6 10.b5 Na5+=) 10.Nc3+= 10...Bg8+=; B) 7...Nd7 8.Nc3 Be6 9.de5 Ne5 10.Nb5 a5+=; C) 7...ed4 8.Bd4 Nc6 9.Nc3 Be6 10.Bb5 Nge7=.

    7.Nf3 Nd7 8.Nc3 Be6 9.Be2 Qe7 10.0-0 Nh6 11.d4 Nf5 (11...0-0 12.Qc2=) 12.de5 Ne5 13.Ne5 (13.e4 Nf3 14.Bf3 Nh4=) 13...Be5= 14.Qc2 Rd8 15.Rad1 Rd1 16.Rd1 c6 17.Bd3 g6 18.Ne4 Kf7 (18...Bb2!? 19.Qb2 0-0+=) 19.Be5+/– fe5 20.Nc5 (better is 20.Bc4 Bc4 21.Qc4 Kg7 22.Nc5+/–) 20...b6? (better is 20...Rd8+=) 21.Ne6+– Ke6 (21...Nd6 22.Bc4 Rc8+–) 22.Qb3 (22.Qc6 Nd6 23.Bc4 Kf6 24.Rd6 Kg5 25.Rd7 Qd7 26.Qd7 Kh6 27.g4 Rf8 28.h4 e4 29.Qe7 Rc8 30.g5 Kh5 31.Be2 Kh4 32.Qe4 Kg5 33.Qf4) 22...Kf6+/– 23.Bf5 (23.Qc3 Rc8+/–) 23...gf5+= 24.Qd3 e4?? (24...Rg8 25.Qd7 Qd7 26.Rd7+=) 25.Qd6 (better is 25.Qc3 Kg6 26.Qh8+–) 25...Qd6+/– 26.Rd6 Ke5 27.Rc6 Rd8 28.g3 Rd7 29.Kg2 Kd5 30.Rf6 (better is 30.b5!?+/–) 30...Ke5+= 31.Rc6 Kd5 32.Rc3 Kd6 33.h4 Rc7? (33...a5!?+/–) 34.Rc7+– Kc7 35.f3 (35.g4 Kd6 36.Kg3 fg4 37.Kg4 Kd5+–) 35...Kd6 36.fe4 fe4 37.Kf2 (37.Kh3 Kd5 38.Kg4 a5+–) 37...Kd5? (37...b5 38.g4 Kd5 39.Kg3+–) 38.Ke2 (better is 38.b5 Kc4 39.g4+–) 38...Kc4 39.Kd2 Kb3 (39...Kd5+–) 40.g4 Ka3 (40...Kc4 41.h5 Kd5+–) 41.Kc3 a5 42.ba5 ba5 43.g5 Ka2 44.Kc2 a4 45.h5 Ka3 46.g6 hg6 47.hg6 Kb4 48.g7 1–0. Fournier,Frederic (1790) – Hafizov,Radik Rifatovich, Active, 2012.

    7.Nc3 Be6

    8.d4 ed4 9.Qd4 Nc6 (9...Ne7 10.Qe4 Qc8 11.Nb5+=) 10.Qe4 Qe7 11.Nf3 (11.Ba6 Bc8 12.Rc1 Nb4 13.ab4 Qe4 14.Ne4 Bb4 15.Bc3 Bc3 16.Rc3 ba6 17.Rc7 Ne7=) 11...f5 12.Qc2 Ne5 (12...Nf6!?=) 13.Nd4+/– f4 (13...Nf6 14.Ncb5 0-0 15.Ne6 Qe6 16.Nd4+/–) 14.ef4 (14.Ne4 Bd7 15.Nb5 Bc6 16.Ned6 cd6+–) 14...Nc4 (14...Ng6 15.Ne6 Nf4 16.Bb5 c6 17.Ne4 Qe6 18.Bc4+–) 15.Bc4 (15.Qe4 Bd5 16.Qe7 Ne7 17.Nd5 Nb2 18.Ne7 Be7+/–) 15...Bc4 16.Nce2 Be2 17.Qe2 Kf7 18.0-0 (18.Nf5 Qe2 19.Ke2 Ne7 20.Nd6 cd6+/–) 18...Qe2 19.Ne2 Nf6 20.Rad1 Rhe8 21.Rfe1 Rad8 (21...a5 22.b5+=) 22.Kf1 (22.Be5 Rd7 23.Nd4 Rde7+/–) 22...Rd7 23.g3 Rde7 24.Nd4 a6 (24...Re1 25.Re1 c5 26.bc5 Bc5 27.f5+/–) 25.Re7 Be7 26.Nf3 (26.f5 a5 27.b5 Rc8+/–) 26...Kf8 (26...Kg8 27.Bf6 Bf6 28.Ne5+/–) 27.Ng5 Bd6 (27...Kg8 28.f5+/–) 28.f5+– h6 (28...Be5 29.Be5 Re5 30.Ne6 Kg8 31.g4+–) 29.Bf6 gf6 30.Ne6 Kf7 (30...Ke7 31.Rd4+–) 31.Rd4 b6 32.Ke2 h5 33.Kd3 Be5 (33...Ke7 34.Rh4 Rh8 35.Kc4+–) 34.Rh4 (34.Rh4 Rh8 35.Rc4+–; 34.Rc4 Rc8+–) 1–0. Roldan,Antonio Jose – Jimenez Haelter,Walter, IECG, 2000.

    8.Ne4=.

    8.Qf3 c6 9.Ne4+= Bc7 (9...a5 10.b5+=) 10.Nc5 White launches an attack 10...Bc8 (10...Qc8 11.Qg3 g6 12.Be2+=) 11.Bc4 (11.d4 b6 12.Ne4 f5+=) 11...Qe7 12.d4 Nh6 (12...b6 13.Ne4+=) 13.Qh5+/– Nf7 (13...Kf8 14.de5 fe5 15.h3+/–) 14.de5 Be5 15.Be5 fe5 (15...g6!? 16.Bf6 Qf6 (16...gh5? 17.Be7 Ke7 18.Nf3+–) 17.Bf7 Kf7+/–) 16.Nf3+– 0-0?? (better is 16...g6 17.Bf7 Kf7 18.Qe5 Qe5 19.Ne5 Ke7+–) 17.Ng5 Bf5 18.Nf7 Bg6 (18...g6 19.Qg5 Qg5 20.Ng5 Kh8 21.Nb7 Bc8+–) 19.Ne5 (19.Ne5 Rf7 20.Ng6 (20.Nf7?! Bh5 21.Nd6 Kh8 22.Ndb7 Qg5+/–) 20...hg6 21.Qg6+–) 1–0. marekt – uoiea, ChessWorld.net, 2001.

    8.Qf3 Nc6 9.Ne4=.

    8.Nf3 Nh6 9.d4 Nd7 10.Bd3 0-0 11.Nb5 Qe7 12.Qc2 g6 13.0-0 (13.Nc7 Rac8–+) 13...Bg4 14.Rac1 Rad8 (14...Bf3 15.gf3 Kh8 16.Nd6 (16.Nc7 Rac8-/+) 16...cd6 17.Qc7+/–) 15.Nd6 cd6 16.Qc7 Nf7 (16...Bf3 17.gf3 b6 18.Qa7+/–) 17.Nd2 (17.Qb7 Rb8 18.Qc6 Rfc8 19.Qc8 Rc8 20.Rc8 Nf8+=) 17...Qe6 (better is 17...Rb8!?+/–) 18.Qb7+– Qb3?? (18...Rb8 19.Qa7 Ra8+–) 19.Nb3 1–0. Hoch,Hubertus (2210) – Roberts,David, 60yearsBdF–WS18, 2006.

    8.Nf3 Ne7

    9.Bb5 c6 10.Ba4 b5 11.Bc2 c5 12.bc5+/– Bc5 13.Nb5 0-0 14.0-0 Bc4 15.Bb3+– Bb3 16.Qb3 (16.Qb3 Qd5 17.Qd5 Nd5 18.d4 ed4 19.Bd4 Bd4 20.Nbd4+–) 1–0. wlittle (2330) – arsigen (1965), net–chess.com, 2004.

    9.Rc1 Nd7 10.Nb5 Nb6 11.Nd6 Qd6 12.Be2 0-0-0 13.d4 e4 14.Nd2 f5 15.Qc2 Rhg8 16.Nb3 Rdf8 17.Nc5 Bd5 18.0-0 g5 19.Bb5 c6 20.Nb3 Kb8 21.Be2 f4 22.Nc5 f3 23.Bd1 fg2=+ 24.Re1 Nf5 25.Ne4= Qe7 26.Nc5 Nh4 27.e4 Rf4 28.Bh5 Bc4 29.e5?? g4–+ 30.Re3 Rgf8 31.Ne4 Nf3–+ 32.Rf3 gf3 33.Nf6 Be2 34.Qh7 Qh7 35.Nh7 Rh8 36.Bg6 Rh4 0–1. mgriffin – sbrewer, net–chess.com, 2001.

    9.d4 0-0 10.de5 fe5 11.Ng5 Qd7 12.Ne6 Qe6 13.Qc2 Nd7 14.Nb5 Qf6 15.Bd3 Ng6 16.0-0 a6 17.Nd6 cd6 18.Qc7 Qe6 19.Qb7 Rfb8 20.Qe4 d5 21.Qf5 Qd6 22.f4 Rf8 23.Qg5 e4 24.Be2 h6 25.Qg3 Rfc8 26.Rfc1 Ndf8 27.Bd4 Kh7 (27...Rd8 28.Bg4+–) 28.Bh5 (28.Rc8 Rc8 29.f5 Qg3 30.hg3 Ne7+–) 28...Nd7 29.Qg4 Rc1 30.Rc1 Ndf8 31.f5 Ne5 32.Qg3 Nfd7 33.Bf7 Rf8 34.Be6 Rf6 35.Rc8 (35.Bd7!? Nd7 36.Bf6 Qf6 37.Qg6 Qg6 38.fg6 Kg6 39.Rc6 Kf5 40.Ra6 Nf8+–) 35...Re6 36.fe6 Qe6 37.Rc7 Ng6 38.a4 1–0. Fournier,Frederic (2000) – Villard,Pierre (2230), echecsemail.com Team, 2005.

    9.d4 0-0 10.de5 fe5 11.Ng5 Bf5? 12.e4+– Bg6 13.Bc4 Kh8 14.Ne6 Qe8 15.Nf8 Qf8 16.0-0 Nd7 17.Nb5 Nb6 18.Nd6 cd6 19.Bd3 Nc6 20.Rc1 Rd8 21.Qg4 Nd7 22.f4 Nf6 23.Qe6 (23.Qh4 Re8+–) 23...Re8 24.Qh3 ef4 25.Rf4 Qe7 26.Bf6 gf6 27.Qh4 Rf8 28.Kh1 Ne5 29.Be2 Nf7 30.Qf6 Qf6 31.Rf6 Kg7 (31...Be4 32.Rc7 Kg7 33.Rd6+–) 32.Rf4 Re8 33.Rc7 Rf8 (33...d5 34.Rb7 Re4 35.Re4 de4 36.Ra7+–) 34.Rb7 Kh6 35.Ra7 Rc8 (35...Re8 36.h4 d5 37.h5 Re4 38.Re4 de4 39.hg6 Kg6 40.b5+–) 36.h4 Ne5 37.g4 Rc1 38.Kg2 Rc2 (38...Nf7+–) 39.g5 1–0. Fournier,Frederic (2230) – lnv (1910), Active (5/0), 2006.

    9.d4 Nbc6 10.Be2 (10.Bb5 Qd7+=) 10...ed4= 11.Nd4 Nd4 12.Qd4 0-0 (12...Be5 13.Qe4 Qb8 14.0-0+=) 13.Qe4+= Qe8?? (better is 13...Qc8+=) 14.Qe6+– (14.Qe6 Kh8 15.Bf3+–) 1–0. Roldan,Antonio Jose – Barkwell,Michael C (1945), IECG, 1999.

    9.d4 ed4 10.Nd4+/– (10.Qd4?! Nbc6 11.Qe4 Qd7=) 10...Bf7 11.Qg4 0-0 12.Bd3 (12.Ne4 f5 13.Nf5 Nf5 14.Qf5 Bb3+–) 12...Nbc6 (12...Qc8 13.Nf5 Bg6 14.Ne7 Be7 15.Qc4 Rf7 16.Bg6 hg6 17.h4+/–) 13.Ne6 Be6 14.Qe6 Kh8 15.Rd1 Qe8 (15...Qc8 16.Qc8 Nc8 17.f4+/–) 16.f4 Qh5 (16...Qc8 17.Qc4+–) 17.0-0+– Rae8 (17...Rad8 18.Rf3 Qf7 19.Qf7 Rf7 20.Ne4+–) 18.Rf3 Ng6 (18...h6 19.Rh3 Qf7 20.Qf7 Rf7 21.g4+–) 19.Qa2 a6 (19...Nh4 20.Rh3 g5 21.Qd5+–) 20.Rh3 (20.Rh3 Qg4 21.Be2+–) 1–0. d'Ettorre,Rodolfo (1900) – Czekaj,Christophe (1660), FICGS, 2008.

    9.d4 Nd7 10.Bd3 =.

    7.Nc3 Bf7

    8.d4 ed4 9.Qd4 Nc6 10.Qg4 Bg6 11.Rd1 Qe7 (11...a5 12.ba5 Nh6 13.Qe6 Qe7 14.Qe7 Ke7 15.Nd5 Kd7 16.Bc3+=) 12.Nb5 (12.Nd5 Qf7+/-) 12...Nh6 (12...Be5 13.Nd4 Nd4 14.Bd4=) 13.Nd6+= cd6 14.Qf4 0-0-0 (14...Nf7 15.Nf3+=) 15.Nf3+/- Rhe8 16.Bb5 (16.b5 Ne5+/-) 16...Be4 (16...Qe4 17.Qg3+=) 17.0-0 (17.Rc1 Qe6+/-) 17...d5 (17...Qe6 18.Nd4 Qg4 19.Qg4 Ng4 20.Rc1+/-) 18.Nd4 Nd4?? (better 18...Qd6 19.Qh4 Nf5+/-) 19.Bd4 (19.ed4!? Bc2 20.Rc1 Qe4+-) 19...g5 (19...b6 20.f3 g5 21.Rc1 Kb7 22.Bc6 Ka6 23.b5 Ka5+-) 20.Rc1 (20.Rc1 Bc2 21.Rc2 Qc7 22.Qc7) 1-0. A3orA6 (2455) - ssadek (2370), Rated Blitz game, lichess.org, 2019. (=1.a3 A00: Irregular Openings 1...d5 2.b4 e5 3.Bb2 Bd6 4.e3 f6 5.c4 Be6)

    8.Ne4 Nd7 9.Nd6 cd6 10.Qg4 g6 11.Rc1 Rc8 12.Rc8 Qc8 13.Qd1 Ne7 14.Ne2 0-0 15.Nc3 a6 (15...Nb6 16.d3=) 16.Be2 Nd5 17.0-0 Qc7 18.Qa1 (18.Nd5 Bd5 19.d3 f5+=) 18...Rc8 (18...N7b6 19.Rc1 Qe7 20.Nd5 Nd5 21.Qb1+=) 19.Ne4 N7b6 20.Rc1 Qb8 (20...Qe7 21.Rc8 Nc8 22.d3+=) 21.Rc8+/– Nc8 22.f4 Ndb6?? (better is 22...Ncb6+/–) 23.Nf6+– Kg7 (23...Kf8 24.fe5 Ke7 25.Nh7+–) 24.fe5 Nc4 (24...Kf8 25.Bd4 de5 26.Be5 Qa8+–) 25.Nd7 Qa7 26.e6 Nb2 27.Qb2 1–0. orane (1930) – Oldie (1835), Live Game Caissa's Web, 2003.

    8.Nf3 a6 9.Rc1 Nd7 10.Be2 Ne7 11.d4 ed4 12.Nd4 0-0 13.0-0 Ne5 14.Ne4 N7g6 15.Nf3 Nf3 16.Bf3+/– Ne5 17.Be5 Be5 18.Nc5 Bb2 19.Nb7 Qd1 20.Rcd1 Rab8 21.Nc5+/– Rfd8? 22.Na6+– Rd1 23.Rd1 Rf8 24.Nc7 Ba3 25.b5 Bc5 26.Bd5 1–0. wlittle (2330) – vegardramstad (2075), net–chess.com, 2004.

    8.Nf3 Nd7 9.Rc1 (9.Bd3 Ne7+/–) 9...Nb6 (9...Ne7 10.Ne4+=) 10.Nb5 (10.Ne4 Ne7 11.d4 ed4 12.Nd4 0-0+/–) 10...Ne7+= 11.Nd6 (11.Qc2 0-0+=) 11...Qd6 12.Qc2 c6 13.d4 ed4 14.Nd4 (14.Bd4 Bg6 15.Bd3 Bd3 16.Qd3+=) 14...Rc8 (14...a5!? 15.b5 Bg6+/–) 15.Bd3+/– Bg6 (15...h6 16.0-0+/–) 16.Bg6 (16.e4 0-0+/–) 16...Ng6 (16...hg6 17.h3 0-0 18.e4+/–) 17.Nf5 Qc7 18.Qe4 (18.0-0 0-0+/–) 18...Kf7 19.0-0 Rhe8 20.Qc2 a6 (20...Kg8!?+/–) 21.Rfd1 Red8 (21...Rcd8+–) 22.Qc5 (better is 22.Bd4!? Nd7 23.h4+–) 22...Rd1 23.Rd1 Rd8 24.Rd8 Qd8 25.Bd4 (25.Qd6 Qd7 26.e4 Qd6 27.Nd6 Ke7 28.Nb7 Nf4+/–) 25...Nc8 26.Qc4 (26.Qc2 Qd7+=) 26...Qd5+= 27.Qd5 (27.Qd3 Ne5 28.Qe2 Ne7+=) 27...cd5= 28.f4 Nge7 29.Ne7 Ke7 30.g4 g6 31.Kf2 Ke6 32.Bc5 b6 33.Bd4 f5 (33...Nd6 34.Bb6 Nc4 35.Bc5 Na3 36.Ke2=) 34.Kg3 (34.g5 Nd6 35.a4 b5=) 34...Nd6 35.Kh4 (35.Bb6 Nc4 36.Bc5 Na3=) 35...b5+= 36.Kg5 (36.h3 h6 37.Bb2 Kf7+=) 36...Nf7 (36...fg4 37.Kg4 Nc4 38.Kg5-/+) 37.Kh4+= fg4 38.Kg4 h5 (38...Nd6 39.Bb2+=) 39.Kf3 (39.Kh4 Kf5=) 39...Kf5 (39...Nd6+=) 40.h4 (better is 40.Bc5!?+=) 40...Nd6-/+ 41.Bb2 Nc4 (41...Ke6!? 42.Bc3 Nc4-/+) 42.Bc1+= a5 (42...Ke6!? 43.Ke2 Nd6+=) 43.ba5= Na5 44.Bd2 Nb3 45.Bc3 ½–½. Chaparro Grande,Fernando – Macias Reyes,Jose Luis (1605), 2nd Memorial Piedad Cambeiro Dominguez, 2015.

    8.Qg4 Bg6 9.Nf3 Nh6 10.Qe6+= Qe7? 11.Qc8+– Qd8 12.Bb5 c6 13.Qb7 Nd7 14.Bc6 Rb8 15.Qa7 Nf7 16.Nb5 (16.Nb5 Rc8 17.Rc1+–) 1–0. aschellen (1720) – lord_death, internet, 2006.

    8.Nf3 Ne7 9.Qa4 Nd7 10.Nb5+=.

    5.c4 Ne7??

    6.Nc3?? d4 7.ed4 ed4 8.Ne4 Be5 9.d3 0-0 10.Nf3 Bg4 11.Be2 Nbc6 (better is 11...Ng6!?=) 12.Ne5+/– fe5?? (better is 12...Ne5 13.Bg4 Ng4 14.Qg4 f5+/–) 13.Bg4+– Nf5 14.Bf5 Rf5 15.0-0 Qh4 16.Ng3 Raf8 (16...Rf7+–) 17.Nf5 Rf5 18.Bc1 1–0. Fournier,Frederic – PanovX (1660), Active, 2007.

    6.c5+– 1–0. Wall,Bill – Vivo M, internet, 1998.

    6.c5+– 0-0 7.d4+–.

    6.c5 a5 7.cd6 Qd6 8.Nc3 (8.d4 0-0+–) 8...ab4 9.Nb5 Qd7 10.ab4 Ra1 11.Ba1 c6 12.Na7 0-0 13.Nf3 Qd6 14.Nc8 Rc8 15.Qb1 Na6 16.Ba6 (16.Bc3 Nc7+–) 16...ba6 17.0-0 Rb8 18.Qa2 Rb6 (18...Qb4 19.Qa6 Qb5 20.Qa3+–) 19.Bc3 e4 (19...c5 20.bc5 Qc5 21.Rc1+–) 20.Nd4 c5 21.bc5 Qc5 22.Ba5 (22.f3 ef3 23.Nf3 Nc6+–) 22...Rd6 (22...Rb8 23.f3 ef3 24.Nf3+–) 23.Rb1 Nc6 (23...Rd7 24.Bb6 Qc4 25.Ra1+–) 24.Bb6 Qc4 25.Qc4 (better is 25.Qa3 Rd7 26.Rc1 Qb4 27.Qa6 Nd4 28.Bd4 Qe7+–) 25...dc4 26.Nc6 Rc6 27.Bd4 Kf7 28.Rb7 Kg6 29.g4 (29.Re7 Rc8+–) 29...h6 (29...Re6 30.Rc7 a5 31.Rc4+–) 30.Kg2 a5 (30...Kh7 31.Re7 Kg6 32.Kg3+– (worse is 32.Re4 Kf7+–)) 31.Ra7 Re6 (31...a4 32.Kg3+–) 32.Kg3 1–0. Bulcourf,Carlos (2155) – Ferrate,Nicolas Gustavo, XV PRO AM Open, 2008.

    6.c5+– Bc5 7.bc5 Nbc6 (7...0-0 8.d4 Nbc6 9.Nf3+–) 8.Be2 (8.Qh5 g6 9.Qf3 0-0+–) 8...0-0 (8...b6 9.cb6 ab6 10.Bh5 g6 11.Bf3+–) 9.Nf3 Bg4 (9...b6 10.d4 e4 11.Nfd2+–) 10.d4 (10.0-0 e4 11.Nd4 Be2 12.Qe2 Qd7+–) 10...e4 11.Nfd2 Be2 12.Qe2 Nf5 (12...b6 13.Nb3+–) 13.0-0 Nh6 (13...Nce7 14.Nc3+–) 14.Nc3 f5 15.f3 Qg5? (15...Qd7+–) 16.Nd5 Rad8 (16...ef3 17.Nf3 Qd8 18.Nf4+–) 17.Nc7 Rf6 (17...Qg6 18.fe4 fe4 19.Qc4 Rf7 20.Rf7 Nf7 21.Qe6+–) 18.d5 Rdf8 (18...Rg6 19.fe4 Rd7 20.Ne6 Re6 21.de6+–) 19.Bf6 Rf6 20.dc6 bc6 (20...Rc6 21.Qc4 Kh8 22.Nd5+–) 21.Rab1 Rg6 (21...Kf7 22.fe4 Ng4 23.Rf4+–) 22.Rb8 (22.Rb8 Kf7 23.f4 Qg2 24.Qg2 Rg2 25.Kg2+–) 1–0. aschellen (1795) – ReardenSteel, internet, 2006.

    6.c5 Bc5 7.bc5 Nd7 8.Qc2 0-0 9.Nf3 b6 10.c6 Nc5 11.d4 Bf5 12.Qc3 Na4+/– 13.Qb4 Nb2 14.Qb2 Nc6 15.Bb5+– Ne7 16.Nbd2 c6 17.Ba4 b5 18.Bb3 a5 19.0-0 a4+/– 20.Ba2 e4 21.Ne1 Kh8 22.Nc2 Qd6 23.Nb4 h6 24.f3 ef3+/– 25.Nf3 Be4 26.Bb1 f5 27.Be4 fe4 28.Ne5 Nf5 29.Qe2 c5 30.Nbc6 Rac8 31.Na7 Rb8 32.dc5?? Qe5= 33.Nc6 Qc7? 34.Nb8+– Qb8 35.Rab1 d4 36.ed4 Nd4 37.Qe4 Nb3 38.Rf8 Qf8 39.c6 Nd2? 40.Qg4 Qc5–+ 41.Kh1 Nb1 42.h3 Qc6 43.Qb4 Nc3 44.Qf8 Kh7 45.Qf5 Kg8 46.Qc2 Qc5 47.Qd3 Qa3 48.Kh2 Qc5 49.Qd8 Qf8 50.Qd4 b4 51.Qc4 Kh8 52.h4 a3 53.Kh3 a2 (53...a2 54.Qd3 a1Q 55.Kh2 Qe1 56.Qg3 Qg3 57.Kg3 Ne2 58.Kh3 Qf4 59.h5 Qg3#) 0–1. coloplayah (2175) – johnb (2160), net–chess.com, 2007.

    6.c5 Bc5 7.bc5 Nd7 8.d4 ed4 9.Bd4 b6 10.Qc2 bc5 11.Bc5 Nc5 12.Qc5 c6 13.Nd2 Bf5 14.Ne2 Qb6 15.Rc1 Qc5 16.Rc5 1–0. aspasio – pierred, net–chess.com, 2013.

    6.cd5?? Nd5= 7.Nc3 Nc3 8.Bc3 0-0 9.Bc4 Kh8 10.Nf3 Qe7 11.0-0 Nd7 12.Qc2 Nb6 13.Be2 Nd5 14.Bb2 Be6 15.d4 e4 16.Nd2 (better is 16.Qe4!? f5 17.Qc2+/–) 16...f5= 17.Nc4 Rac8 18.Nd6 cd6 19.Qd2 f4 20.ef4 (20.Kh1-/+) 20...Rf4?? (better is 20...Nf4 21.Qd1 Ne2 22.Qe2 Bc4–+) 21.g3 Rf7 22.Rfc1 (22.Rac1 Rc1 23.Bc1 Bh3-/+) 22...Rcf8 23.Rf1 (better is 23.Bc4!?-/+) 23...Bh3–+ 24.Rfc1?? (better is 24.Bc4 Bf1 25.Rf1–+) 24...Rf2 (24...Rf2 25.Rf1 Qf6–+) 0–1. Fournier,Frederic (1705) – fvicous, ChessOK.com, 2013.

    6.cd5?? Nd5 7.Bc4 Be6 (7...Nb6 8.Ba2=) 8.Qh5 (8.Qb3 c6 9.e4 b5 10.Bd5 cd5=) 8...Bf7 9.Qg4 0-0 10.Ne2 Qd7 11.Qd7 Nd7 12.Nbc3 N7b6 13.Bb3 a5 14.b5 Nc3 15.Bf7 Rf7 16.Nc3 (worse 16.dc3 a4-/+) 16...Rd7 17.d3 Rad8 18.Ke2 Be7 19.Rhd1 f5 20.Rac1 Bf6 21.Rc2 Rd6 22.a4 R6d7 23.Ba3 g6 24.Bc5 Nc8 25.e4 b6 (25...c6!?=) 26.Ba3+= Be7 27.Bb2 Bd6 28.Nd5 Rf7? (better 28...Kf7!?+=) 29.Rdc1+- Ne7 (29...Bc5 30.f3 Re8 31.Rc5 bc5 32.Rc5 fe4 33.fe4+/-) 30.Nc7 Rdf8 31.Ne6 Re8 32.Ng5 Rf6? (32...Rff8 33.Ke3+-) 33.Nf3 (better 33.f4!? fe4 34.Ne4 Re6 35.Nd6 Rd6 36.fe5 Nd5+-) 33...fe4 34.de4 (34.Ne5?! Nd5 35.Nc6 Rf5+/-) 34...Bc5 (34...Ref8 35.Rd1+-) 35.Be5 (35.Rc5!? bc5 36.Rc5 Nc8 37.Re5 Rfe6+-) 35...Re6 36.Kf1 Rf8 37.Bg3 (37.Rc5 bc5 38.Rc5+-) 37...Nc8? (better 37...Re4 38.Rc4 Rc4 39.Rc4 Nd5+/-) 38.Re2 White intends e5 38...Nd6 (38...h6+-) 39.e5 (39.e5 Nf5 40.Bf4+-) 1-0. FeegLood (2565) - kingston_1972 (2220), Time forfeit, lichess.org, 2015.

    6.Nf3 dc4 7.Bc4 Bg4 8.Nc3 Nd7 9.Qb3 Nb6 10.Bf7 1–0. tightfist (2425) – israelflavio (2445), net–chess.com, 2014.

    6.Nf3 c6 7.Be2 0-0 (7...dc4 8.Bc4 b5 9.Ba2=) 8.d3 (8.c5 Bc7=) 8...Be6 9.Nbd2 Nd7 10.cd5 cd5 11.0-0 h6 (11...a5 12.ba5 Qa5 13.a4=+) 12.e4 d4 13.Nc4 Bc4 (13...Bc7!?=+) 14.dc4+= b6 15.Bd3 Rc8 16.Rc1 Re8 17.Qb3 Kh8 18.Rfe1 (18.Rfd1 Qc7+=) 18...Nf8 (18...a5 19.Red1=) 19.a4 (19.Rc2 Qc7+=) 19...Nc6 (19...Nd7 20.Ba3=) 20.Ba3 White plans c5 (20.c5 bc5 21.bc5 Be7+=) 20...Qe7 b4 draws heavy fire (20...a5 21.c5 ab4 22.cd6 ba3 23.Qa3+=) 21.c5+= bc5 22.bc5 Bc7 23.Bb5 (23.Red1 Red8+=) 23...Ba5= 24.Red1 Qe6 (24...Bc3 25.Nd2=) 25.Qe6 (25.Bc4 Qg4+=) 25...Ne6= 26.Ne1 (26.Ba6 Rc7 27.Bb5 Rcc8=) 26...Be1 27.Re1 Rc7 28.Red1 Nf4 (28...Kh7 29.Bc4=) 29.g3 Ne6 30.Kf1 Rec8 31.Ke2 (31.Bc4 Ncd8 32.Ba6 Rb8+=) 31...Na5 (better 31...Nb8 32.c6 a6=) 32.Bb4 (better 32.Ba6 Rb8 33.Rd3+=) 32...Nb3-/+ 33.Rc2 (33.Rb1 Nbc5 34.f3 Rb8-/+) 33...Nec5 34.Bc5 (34.Rb2 a6 35.Bd3 a5 36.Bc5 Nc5–+) 34...Rc5 35.Rc5 Rc5 36.Rb1 Na5 (36...Rc3 37.Be8 Kh7 38.h4 d3 39.Kd1–+) 37.Bd3 (37.Kd1 Rc3-/+) 37...Rc7 (37...Rc3 38.Rb2–+) 38.f4 Nc6?? (better 38...Rc3-/+) 39.Rc1+– Rc8 (39...ef4 40.gf4 Rc8 41.Ba6+–) 40.fe5 (40.Ba6 Rb8 41.Rc6 Rb2 42.Kf3 Rh2 43.fe5 fe5+–) 40...fe5 (40...Ne7 41.Rc8 Nc8 42.ef6 gf6 43.Bc4+–) 41.Ba6 Rc7 42.Bb5 d3? (better 42...g5+–) 43.Kd2 (43.Kd3?! Nb4 44.Kd2 Rc1 45.Kc1 a5+=; 43.Bd3?! Nd4 44.Kd1 Rc1 45.Kc1 g5=) 43...Rf7 44.Rc6 Rf2 45.Kd3 Rh2 46.Rc8 (46.Ra6 Rg2+–) 46...Kh7 47.Be8 (47.Ra8 Rh3+–) 47...Rg2 48.Rc6 (48.Ra8!? Rg3 49.Kc4 h5 50.Bh5 g6 51.Ra7 Kh6+–) 48...Rg3 49.Ke2 (49.Kc4 Rg5+–) 49...h5 (49...Rg4 50.Ke3+–) 50.Kf2 (better 50.Bh5!? Rg5 51.Bf7 Rg4+–) 50...h4 51.Bd7 (51.Ra6 Rc3+–) 51...g5 52.Bf5 Kg7 53.Rc7 Kf6 54.Rc6?? (54.Ra7 Ra3+–) 54...Ke7?? (54...Kg7 55.a5 Ra3+–) 55.Re6+– Kd7 (55...Kf8 56.Re5 Rc3 57.Rd5+–) 56.Rg6 (56.Re5!? Kc7+–) 56...Kc7 57.Rg7 (57.a5 Ra3 58.Rg5 Ra5+–) 57...Kc6 (better 57...Kb6+–) 58.Rg6?? (58.Ra7 Rc3 59.Re7 Rc2 60.Ke3 Rc3 61.Kd2 Ra3+–) 58...Kc5?? (58...Kc7 59.a5 Ra3 60.Rg5 Ra5+–) 59.Rg5?? (better 59.Ra6+–) 59...Kd4 (better 59...Rg5 60.Bd7 Rg7–+) 60.Rg3+– hg3 61.Kg3 Kc4 62.Kg4 Kb4 (62...Kd4 63.Kg5+–) 63.Kg5 Ka4 (63...Kc5+–) 64.Kf6 Kb4 65.Ke5 a5 66.Be6 (66.Be6 a4 67.Kd6+–) 1–0. BeepBeepImAJeep (2580) – Clovis99 (2425), lichess.org, 2017.

    5.d4 e4

    6.c4 Bd6 7.Nc3 Ne7 8.f3 ef3 9.Nf3 Be6 10.c5 Bc7 11.Bd3 Bf5 12.0-0 0-0 13.Bf5 Nf5 14.Qd3 Qc8 15.Rae1 a6 16.e4 0–1. Fournier,Frederic (2215) – Pretto Rafael Antonio (2320), corr Match ARG–FRA, 2001.

    6.c4 Be6 7.c5 Be7 8.Qc2 c6 9.Nd2 Nd7 10.0-0-0 (10.Ne2!?=) 10...f5 11.f3 Ngf6 12.Nb3 (12.Nh3 b6=+) 12...0-0 13.Ne2 h6 (13...Qc7 14.Rd2=+) 14.fe4 (14.Na5 Qc7=+) 14...fe4 15.g3 (15.Nf4 Bf7=+) 15...Bg4-/+ 16.h3 Be2 (16...Bf3!? 17.Rg1 b6-/+) 17.Be2=+ Qc7 18.g4 a6 (18...Nh7!?=+) 19.h4 b6 (19...Nh7!?=) 20.g5+= hg5 21.hg5 Nh7 (21...Ne8 22.Bg4 Bg5 23.Be6 Rf7 24.Qf2+– (24.Bf7?! Kf7 25.Rh3 Ke7+–)) 22.g6 Ng5? (22...Nhf6 23.Rh3 Rfb8+–) 23.Rdf1 (better 23.Rh5+–) 23...Rf1 (23...Qg3 24.cb6 Qe3 25.Kd1 Nb6 26.Bc1 Rf1 27.Rf1=) 24.Bf1 bc5 25.Qh2?? (better 25.dc5 Qg3 26.Na5 Qe3 27.Kb1+=) 25...Qh2–+ 26.Rh2 Bf6?? (better 26...cb4 27.ab4 Bb4–+) 27.dc5 Kf8?? (better 27...Nf3 28.Rh5 Bg5=+) 28.Bf6 (better 28.Rh8 Ke7 29.Ra8 Bb2 30.Kb2+–) 28...Nf6 29.Rf2?? (29.Na5 Ke7 30.Nc6 Kd7+–) 29...Rb8? (better 29...Nf3 30.Be2 Ng4=) 30.Ba6 (better 30.Nd4 Rc8 31.Ba6+–) 30...Nh3? (better 30...Ne6+–) 31.Rh2 Ra8 32.Rh3 (better 32.Bb7 Ra3 33.Kb2 (33.Rh3?! Rb3 34.Bc6 Rb4=) 33...Rb3 34.Kb3+–) 32...Ra6+– 33.Nd4 Kg8 (better 33...Ng4 34.Rg3 Ne5+–) 34.Ne6?? (better 34.a4+–) 34...Ra3= 35.Ng7?? (better 35.Kb2 Ra6 36.Rh1+=) 35...Kg7–+ 36.Rh7 (36.Kb2 Rd3 37.b5 cb5 38.c6–+) 36…Kg6 (36...Kg6 37.Rc7 Re3–+; better 36...Nh7 37.gh7 Re3–+) 0–1. pat_cash87 – L_arrotino, lichess.org, 2020.

    6.Nd2 b5?? 7.Qh5+– g6 8.Qd5 c6 9.Qe4 Qe7 10.Ngf3 Qe4 11.Ne4 Be7 12.c4 a6 13.Be2 Bf5 14.Ng3 Nd7 15.Nf5 gf5 16.Bd3 Nh6 17.cb5 cb5 18.Nh4 Rg8 19.0-0 Kf7 20.Nf5 Nf5 21.Bf5 Nb6 22.e4 h5 23.d5 Rg7 24.Rad1 Nc4 25.Bc1 Ke8 26.Bf4 Na3 27.d6 Bd8 28.d7 Kf8 29.Bh6 Nc4 30.Bg7 Kg7 31.h3 Ra7 32.g4 hg4 33.hg4 Kf7 34.Kg2 Ne5 35.Rh1 Ke7 36.Rh7 Kf8 37.Rdh1 Rc7 38.Rh8 Ke7 39.Re8 Kd6 40.Rd8 Nd7 41.Bd7 (41.Bd7 Ke7 42.Ra8 Rd7 43.g5+–; better is 41.Rd1 Kc6 42.Rc1 Kb6 43.Rc7 Kc7 44.Rd7 Kb6+–) 1–0. euforia (1740) – mancroft, internet, 2007.

    6.c4 c6

    7.Qb3 Be6 8.Nc3 Ne7 9.cd5 cd5 10.Ne4 Bc7 11.Nc5 Bc8 12.Nf3 0-0 13.e4 Kh8 14.ed5 Nd5 15.Bc4 Re8 16.Kf1 Nf4 17.d5 b6 (17...a5 18.Rd1+/-) 18.Ne6 Be6 (18...Ne6 19.de6 Bb7 20.Re1+/-) 19.de6 Nc6? (better 19...a6 20.g3 b5 21.gf4 bc4 22.Qc4 a5+-) 20.g3+- Ng6 21.Kg2 (21.Bb5!? Nce5 22.Rd1 Qe7 23.Be8 Re8+-) 21...Nce5 (21...Be5 22.Rad1 Qe7 23.Rd7+-) 22.Ne5 (22.Rad1 Qe7 23.Bd5 Rad8+-) 22...Ne5 (22...Be5 23.Rhd1 Qb8 24.Bd5 Bb2 25.Qb2+-) 23.Be5 (23.Rad1 Qe7 24.Be5 Be5+-) 23...Be5 (23...fe5 24.Rhd1 Qc8 25.Rd7+-) 24.Rad1 Qc8 25.f4 Bc7 26.Rd7 Rb8 (26...Rd8 27.Rhd1 Rd7 28.Rd7+-) 27.b5 (27.Rc1 Bd8 28.Qd1 Qc6 29.Bd5 Qb5+-) 27...Bd8 28.h4 (28.Ra7!? Re7 29.Re7 Be7+-) 28...Be7 29.h5 Qc5 (29...Rb7 30.Qd3+-) 30.Bd3 Qa3? (30...Rbd8+-) 31.Qa3 Ba3 32.Ra1 (32.Ra7?! Ra8 33.Ra8 Ra8+-) 32...Bf8 (32...Bc5 33.Raa7 Bf8 34.h6 gh6 35.Bc4+-) 33.f5 (33.Raa7 Re6 34.h6 Re3+-) 33...Rbc8 (33...Rbd8+-) 34.Raa7 (34.Rda7?! g6+-) 34...Rcd8 (34...h6 35.Rab7+-) 35.Be4 (better 35.Rd8 Rd8 36.e7 Be7 37.Re7 Rb8+-) 35...Rd7 36.ed7 Rd8 37.Bd5 g6 38.hg6 hg6 39.fg6 Kg7 40.Bf7 Bc5 (40...f5 41.Kf3+-) 41.Kf3 Kf8 (41...f5 42.g4 fg4 43.Kg4+-) 42.Ke4 Ke7 (42...Kg7 43.Kf5 Bd4 44.Be8+-) 43.Be8 Bf2 (43...f5 44.Kd5 Kf6 45.Rc7+-) 44.g4 (44.g7 Bg3 45.g8Q f5 46.Kd5 Kf6 47.Qg6 Ke7 48.Qg7) 44...Kf8 45.Kf5 Kg7 (45...Bc5 46.Rc7 Be7 47.Ke6+-) 46.Rc7 (46.Ra3 Bd4+-) 46...Bc5 47.Rc8 Be7 48.Rc6 (48.Ke6 Rd7 49.Bd7 Bc5 50.Kf5 Bf2 51.Be6 Bg3 52.Rg8 Kh6 53.Rh8 Kg7 54.Rh7 Kf8 55.g7 Ke7 56.g8Q Kd6 57.Qf8) 48...Rb8 (48...Bc5 49.Ke6 Bd4 50.Rc8 Rd7 51.Bf7+-) 49.Re6 (better 49.Ke6!? f5+-) 49...Bd8 (49...Bc5+-) 50.Bf7 Ra8 51.Re8 Rb8 52.Be6 (52.Rg8 Kh6 53.Rh8 Kg7 54.Rh7 Kf8 55.Ke6 f5 56.g7) 52...Ra8+- 53.Rg8 Kh6 54.Rd8! Rd8 (54...Rd8 55.Kf6 Combination) 55.Kf6 Re8 56.g5 (56.de8R?!; 56.de8Q?!; 56.de8N?!; 56.de8B?!) 56...Kh5 57.de8R (57.de8R Kh4 58.Rh8 Kg3 59.g7 Kf3 60.g8Q Kf2 61.Qa8 Ke3 62.Qa2 Ke4 63.Qa3 Kd4 64.Rh4; 57.de8Q Kh4 58.Qb8 Kh5 59.Qh2) 1-0. B4_My_Life (2225) - walter1960 (2345), Rated Classical game, lichess.org, 2016.

    7.Nc3 f5? 8.Qb3 (better 8.cd5!? Nf6 9.dc6 Nc6 10.Bc4+/-) 8...Nf6+= 9.g3 (9.Nh3 0-0+=) 9...Be6 10.h4 (10.Nh3 Nbd7 11.c5 Be7+=) 10...0-0 (10...dc4!? 11.Bc4 Bc4 12.Qc4 Nbd7=+) 11.Nh3= Kh8 12.Ng5 Bg8 13.a4 White prepares the advance b5 (13.c5!? Bc7 14.Be2=) 13...Nbd7=+ 14.b5 Ng4 Black intends f4 (14...h6 15.Be2=+) 15.a5 (15.Be2 h6=+) 15...Ne3 (15...Qc7!? 16.Rh3 a6 17.cd5 cd5=+) 16.fe3= Bg3 17.Kd2 (17.Kd1!?+=) 17...f4=+ 18.a6 fe3 19.Kc2 Rf2?? (19...Rb8 20.Be2=+) 20.Kb1?? (better 20.Ne2 ba6 21.Qe3+/- (21.bc6 Nb6 22.Qe3 Qb8=+)) 20...ba6-/+ 21.Ra6 (21.bc6 Rb8 22.Qa3 Rfb2 23.Qb2 Rb2 24.Kb2 Nb8 25.cd5 Qb6 (worse 25...Bd5 26.c7 Bc7 27.Ra4-+) 26.Kc2 Nc6 27.Nge4 Nb4 28.Kc1 Nd5 29.Ra6 Qb3 30.Nd5 Bd5 31.Ng3 Qc3 32.Kb1 Bh1 33.Nh1 Qe1 34.Kb2 e2 35.Be2 Qe2 (35...Qh1?! 36.Ra7 g6 37.Bd3-+) 36.Kc3 Qa6-+) 21...cb5 (better 21...Bh4!? 22.Nh3 dc4 23.Bc4 Rf3 24.Ne4 Qe7=+) 22.cd5= (22.Qb5?? Rb8 23.cd5 Nf6-+ (worse 23...Rb5 24.Bb5 Nf6 25.d6-+; worse 23...Rb2 24.Kb2 Rb5 25.Bb5-+); 22.Nb5? Bh4! 23.Ne4 e2 24.Be2 Re2-+ (24...de4?! 25.Qc2-/+); 22.Nd5 bc4 23.Bc4 Rb8-+) 22...Nf6 23.Bb5 (23.Ne6!? Qb8 24.h5+=) 23...Nd5= 24.Nce4 Nf6? (24...Nc7 25.Qe3 Rb2 26.Kb2 Rb8= (26...Nb5 27.Rd1-/+)) 25.Re6?? (25.Qe3 Ne4 26.Ne4+- (26.Qe4? Rb8 27.Be2 Qd5 28.Qd5 Bd5-+)) 25...Ne4-/+ (25...Be6 26.Qe6 (26.Ne6?? Ne4 27.Nd8 Nd2 28.Ka2 Nb3-+) 26...Qc8 27.Qc8 Rc8 28.Ng3+-) 26.Ne4 Rb2 27.Qb2? (better 27.Kb2 Rb8 28.Kc2 Qc8 29.Nc5 Be6 30.Qe6 Qe6 31.Ne6 Rb5 32.Kd3-/+) 27...Be6 28.Ng3 Rb8 29.Qe2 (29.Rc1 Qa5 30.Kc2 Rb5-+ (30...Qb5?! 31.Qb5 Rb5 32.Re1-/+)) 29...a6 30.Qe3 Rb5 31.Kc1 (31.Kc2 Qb6 32.Qc3-+) 31...Qc7 32.Kd1 Bg4 (better 32...Rb2 33.Ne2 Qa5-+) 33.Ke1 h6 (better 33...Rb1 34.Kf2 Qf7 35.Kg2 Qd5 36.Qe4 Qe4 37.Ne4 Rh1 38.Kh1 Bf3 39.Kg1 Be4-+) 34.Kf2 (34.Qe8 Kh7 35.Qe4 g6 36.Qg4-+) 34...Rb2 35.Kg1 Qc2 36.Qe8 Kh7 37.Qe4 Qe4 38.Ne4 Bf3 (better 38...Rb1 39.Kg2 Rh1 40.Kh1 Bf3 41.Kg1 Be4-+) 39.Ng5 (39.Nc3 Rc2 40.Rh3 Rc3 41.Kf2-+) 39...hg5 40.Rh3 Kg6 (better 40...Rg2 41.Kf1 g4-+) 41.Rf3 g4?? (41...gh4!? 42.Ra3-+) 42.Rf4? (42.Rf8 Rd2 43.Rd8 Kf5 44.Rf8 Ke4-/+) 42...Rb1 (better 42...Kh5!? 43.Rf7 Kh4 44.Rg7 a5-+) 43.Kg2 g3 (43...Kh5!? 44.Rf7 Kh4 45.Rg7 Rb2 46.Kf1 Kg3-+) 44.Kg3= Kh7 45.Rg4?? (45.Kf2 Kg6=) 45...Rb3 (better 45...Rg1 46.Kf4 Rg4 47.Kg4 a5-+) 46.Kf4= Rb4 47.Kg5 (47.Ke5 a5=) 47...Rb1 (47...a5 48.Re4=) 48.Kf5 Rc1 (48...Kg8 49.d5 Kf7 50.Ke5=) 49.Ke6 (49.d5 g6 50.Ke6 Re1 51.Kd7 Kg7+-) 49...Re1 (49...Rc4!?=) 50.Kd6+/- Rd1 (50...Kg8 51.Rf4 Rg1 52.d5+-) 51.d5 Rc1? (better 51...a5!?+/-) 52.Ke6 (52.Ke7 Re1 53.Kd7 Re3+-) 52...Rb1? (52...Re1 53.Kd7 Rh1+-) 53.Kd7 1-0. Minister007 (2210) - EwigesTalent (2290), Rated Blitz game, lichess.org, 2017.

    7.c5 Bc7 8.Nd2 f5 9.h4 Nf6=+ 10.Ne2 0-0 11.f3 ef3 12.Nf3 =. alaamattar (2115) – fcleto (2175), net–chess.com, 2009.

    7.c5 Bc7 8.Ne2 Ne7 9.Nec3 0-0 10.Nd2 f5 11.Be2 (11.Qb3 Kh8=+) 11...b6 (11...f4 12.0-0=+) 12.Qb3 b5 (better 12...Be6=) 13.0-0-0 (better 13.a4 ba4 14.Ra4+=) 13...a5-/+ 14.Rhg1 (14.Rdf1 ab4 15.ab4 Rf6-/+) 14...a4 (better 14...Bh2!? 15.Rh1 Bc7-/+) 15.Qa2=+ f4 (15...Bh2 16.Rh1 Bc7=+) 16.g4 (16.Nce4 fe3 17.fe3 Nf5=) 16...fg3 (16...f3 17.Bf1 Rf7 18.h4-/+) 17.fg3 (17.hg3 Rf2 18.Nde4 Rf8=) 17...Rf2 (17...Kh8!?=+) 18.Rdf1 Rh2 19.g4 (19.Nde4 Nf5 20.Rf3 Be6=) 19...Rh3 (19...Qd7 20.Kb1-/+) 20.Bd1 (20.Nde4 Re3 21.Rh1 Ng6=+) 20...Re3 (better 20...Kh8-/+) 21.Ne2? (better 21.Nde4 Ng6 22.Kb1-/+) 21...Ng6–+ 22.Qb1 Qg5 23.Rf5 (23.Qc2–+) 23...Bf5 24.gf5 Qf5 25.Bc2 (25.Qc2–+) 25...Qf2 (better 25...Re2 26.Bc3–+) 26.Ne4 (26.Rf1 Qe2 27.Rd1 Nf4–+) 26...Qe2 (26...de4 27.Bc3 Nf4 28.Qa2 Kh8 29.Nf4 Bf4 30.Rd1 Rc3 31.Kb1–+) 27.Nf6 (27.Nd2 Bf4 28.Rd1 Rf3–+) 27...Kf7 (better 27...gf6 28.Qa2 Rg3–+) 28.Bg6 Kf6 (better 28...Ke7 29.Ng8 Kd8 30.Qf5 hg6 31.Qg6–+) 29.Qf5 Ke7 30.Qf7 (30.Bh5 Qc4 31.Kd2 Rd3 32.Qd3 Bf4 33.Ke2 g5–+) 30...Kd8 31.Qf8 Kd7 (better 31...Re8 32.Be8 Qe8 33.Qe8 Ke8 34.Rg7 Bf4 35.Kd1 h6–+) 32.Bf5 Re6 33.Rg7 1–0. pat_cash87 – tobicgn, lichess.org, 2020.

    7.c5 Bc7 8.Qh5 g6 9.Qh4 (9.Qd1 Ne7+=) 9...Be6 (better is 9...Kf7!? 10.f3 ef3 11.Nf3 Kg7+=) 10.f3= Nd7 11.fe4 g5 12.Qh5 Bf7 13.Qg4 (13.Qh3 de4 14.Nc3 Bg6+=) 13...h5 14.Qf5 (14.Qf3 de4 15.Qe4 Ne7+=) 14...Ne7 (14...Nh6 15.Qf3 Ng4 16.Nc3 Nh2 17.Qf5-/+) 15.Qf3 (15.Qf2 de4 16.Nc3 0-0=) 15...g4 (15...de4!? 16.Qe4 f5+=) 16.Qf2= de4 17.Nc3 f5 18.d5 Nd5? (better is 18...cd5 19.Ne4 0-0=) 19.Nd5+– Rh6?? (19...Be5 20.Nf4 Qe7 21.Be5 Qe5+–) 20.Nc7 Qc7 21.Qf5 g3 (21...Qd8 22.Ne2 Qe7 23.0-0-0+–) 22.hg3 (better is 22.Ne2 gh2 23.Nf4 Qd8 24.Rh2 Qe7+–) 22...Qg3 23.Qf2 Qg6 (23...Qf2 24.Kf2 a5 25.Be2+–) 24.0-0-0 0-0-0 25.Nh3 (25.Rd6 Be6 26.Nh3 Re8+–) 25...Rf8 (25...Qg8 26.Nf4+–) 26.Qd2 Ne5 (26...Rd8 27.Nf4 Qg3+–) 27.Be5 Qe6 (27...Bd5 28.g3 Qe8 29.Bg7+–) 28.Bf4 Qb3 29.Qd7 1–0. mbarker (2410) – preethan (2135), net–chess.com, 2015.

    7.Be2 Be6 8.c5 Bc7 9.Bg4 Qd7 10.Bh5= g6 11.Be2 a5 12.Nd2 ab4= 13.ab4 Ra1 14.Ba1 Ne7 15.f3 f5 16.f4 0-0 17.Nh3 h6 18.0-0 Kg7 19.Bc3 Ng8 20.Qe1 Bd8 21.Qf2 Bf6 22.Ra1 Qd8 23.Ra7 Bc8 24.Nb3 Rf7 25.b5 cb5+= 26.Bb5 Nc6 27.Ra8+/– Qc7 28.Qa2 b6 29.cb6 Qb7?? 30.Ra6 Nb8? 31.Ra8 Qb6 32.Be2+= Qb7? 33.Nc5+– Qc7 34.Bb4 Nc6+= 35.Ba5 Na5= 36.Qa5 Qa5 37.Ra5 Ne7 38.Bb5 g5 39.g3 Ng6 40.Nf2 Nf8?? 41.Bc6+/– gf4 42.gf4 Rc7 43.Bd5 Re7 44.Ra8 Be6 45.Ne6+– Ne6 46.Be6 Re6+/– 47.Ra5 Bh4? 48.Rf5+– (48.Rf5 Kg6 49.Rb5+–) 1–0. mic (2200) – carrafurca (2300), net–chess.com, 2007.

    7.Nc3 Be6

    8.Qb3 dc4 9.Bc4 Bc4 10.Qc4 Qe7 11.d5 f5+=.

    8.Qb3 Qd7 9.Rc1 Ne7 10.cd5 cd5 11.f3 Nbc6=.

    8.Qb3 f5 9.cd5 cd5 10.Nb5 Nf6 11.Nh3 Be7=.

    8.Rc1 a6 9.cd5 cd5 10.Qb3 f5 11.Be2 Nf6=.

    8.Rc1 Ne7 9.cd5 cd5 10.Nb5 0-0 11.Ne2 a5=.

    8.cd5 cd5

    9.Bb5 Nc6 A) 10.Qb3 A1) 10...Qd7 11.Na4 (11.Nge2 Nge7 12.Na4 Bf7 13.0-0+=) 11...Nge7 12.Nc5 Qc8 13.Rc1=; A2) 10...Kf7 11.Nge2 (11.Na4 a6 12.Bc6 bc6 13.Rc1=) 11...Nge7 12.0-0 a5 13.Na4=; A3) 10...Bf7 11.Nh3 (11.Be2 Nge7 12.Rc1 0-0 13.Nh3+=) 11...Nge7 12.Be2 0-0 13.Rc1+=; B) 10.Na4 B1) 10...Bc8 11.Qb3 (11.Nc3 Nge7 12.f3 f5 13.Nh3=) 11...a6 12.Be2 Nge7 13.f3=; B2) 10...a6 11.Nc5 (11.Bc6 bc6 12.Nc5 Bc8 13.Nh3=) 11...Bc8 12.Bc6 bc6 13.Ne2=; B3) 10...Nge7 11.Nc5 (11.Rc1 a5 12.Nc5 Bc8 13.Ne2+=) 11...Qc8 12.Ne6 Qe6 13.Qh5=; C) 10.Nge2 C1) 10...Nh6 11.Ba4 (11.Na4 0-0 12.Nc5 Qe7 13.Rc1=) 11...0-0 12.Bb3 f5 13.Nd5=; C2) 10...Rc8 11.Na4 (11.0-0 Nge7 12.Na4 Qc7 13.Ng3+=) 11...Bg4 12.h3 Bh5 13.Nc5=; C3) 10...Nge7 11.Na4 (11.0-0 0-0 12.Na4 a6 13.Nc5+=) 11...Bg4 12.Qb3 a6 13.Bc6=.

    9.Bb5 Kf7 A) 10.Nh3 Ne7 (10...a6 11.Ba4 Ne7 12.0-0 Qc8 13.f3+=; 10...Nc6 11.0-0 Qd7 12.f3 Bh3 13.gh3+=) 11.0-0 (11.Rc1 Nbc6 12.0-0 a5 13.ba5=) 11...Qc7 12.Ba4 Bh2 13.Kh1 Bd6=; B) 10.Ba4 B1) 10...Ne7 11.f3 (11.Nge2 Nd7 12.Bb3 Nb6 13.0-0=) 11...Nf5 12.Qd2 a5 13.fe4+=; B2) 10...a5 11.Nh3 (11.b5 Ne7 12.Nge2 Nd7 13.0-0=) 11...ab4 12.ab4 Nc6 13.0-0+=; B3) 10...Nd7 11.Nh3 (11.Nd5 Bd5 12.Qh5 Ke6 13.Qg4-/+) 11...Nb6 12.Bb3 Rc8 13.f3=; C) 10.Nge2 C1) 10...Nc6 11.Na4 (11.0-0 Nge7 12.f3 ef3 13.Rf3+=) 11...Nge7 12.Nc5 Qc8 13.Rc1+=; C2) 10...a5 11.ba5 (11.0-0 ab4 12.ab4 Ra1 13.Qa1=) 11...Qa5 12.a4 Na6 13.Ba3+=; C3) 10...f5 11.Rc1 (11.Qd2 a6 12.Ba4 Qh4 13.Nf4=) 11...a5 12.ba5 Qa5 13.0-0+=.

    9.Nb5 Be7 10.Ne2 a5 11.Nf4 Bf7 12.Qg4 g5 13.Ne6 Be6 14.Qe6 Ra6 (better is 14...ab4 15.Rc1 Nc6 16.ab4 Qd7 17.Qd5 Qd5 18.Nc7 Kf8 19.Nd5 Nb4 20.Nb4 Bb4 21.Kd1 Bd6+=) 15.Nc7!! Qc7 16.Ba6 Na6 (16...Qc6 17.Qc6 bc6+– (17...Nc6?? 18.Bb7 Kd7 19.b5+–)) 17.Rc1 (17.Qd5?! ab4 18.Qe4 f5 19.Qf5 ba3=) 17...Qc1 (17...Kd8 18.Rc7 Nc7+–) 18.Bc1 ab4 19.Qd5 (19.Qd5 Nc7 20.Qb7+–) 1–0. orane – maxangst, internet, 2003.

    9.Nb5 Ne7 10.Nd6 Qd6 11.Qh5 g6 =.

    9.Bb5 Nd7

    10.Qb3!? A) 10...f5 11.Nh3 (11.Rc1 a6 12.Be2 Qg5 13.g3=) 11...Ngf6 12.Na4 a6 13.Be2+=; B) 10...Kf7 11.Nh3 (11.Nd5? Nb6–+; 11.f3= a6 12.Bd7 Qd7 13.fe4=; 11.Nge2 Nb6 12.Nf4 Bf4 13.ef4=) 11...Nb6 12.0-0 Qb8 13.Kh1=.

    10.Rc1 A) 10...Ne7 11.Qb3 (11.Nh3 0-0 12.Qb3 Bf7 13.0-0=) 11...Kf7 12.Na4 a6 13.Bd7=; B) 10...Rc8 11.f3 (11.Nge2 Ne7 12.Qb3 Kf7 13.Ng3=) 11...a6 12.Bd7 Qd7 13.fe4+=; C) 10...Nh6 11.Qb3 (11.Qh5 Bf7 12.Qh3 f5 13.Nge2+=) 11...Kf7 12.a4 a6 13.Be2+=.

    10.Bd7 Qd7+= (worse is 10...Bd7 11.Qh5 Kf8 12.Qd5+/– Bc6 13.Qe6+/–) 11.h3 (11.Qa4 Ne7 12.Qd7 Bd7 13.f3+=; 11.Nge2 Rc8 12.Qa4 Qa4 13.Na4-/+) 11...Ne7 12.Nge2 0-0 13.Qa4 Rfc8 14.Qd7 Bd7 15.0-0 b6 16.Rac1 Rc7 17.Na2 Rac8 18.Rc7 Rc7 19.Rc1 Rc1 20.Nac1 f5 21.g3 g5 22.Kg2 Ng6 23.Ng1 (23.Nc3!? Be6 24.f4 ef3 25.Kf3+=) 23...f4-/+ 24.Bc3 h5 25.Bd2 (better is 25.ef4 gf4 26.h4–+) 25...Bb5?? (better is 25...f3!? 26.Kh1–+) 26.Na2 (26.gf4!? Nh4 27.Kh1 gf4 28.ef4-/+) 26...f3-/+ 27.Kh1? (better is 27.Nf3 ef3 28.Kf3-/+) 27...h4 28.g4?! (28.Be1–+) 28...Bf1 29.Nf3 ef3 (29...ef3 30.Kg1 Bh3–+) 0–1. Pruk,Mateusz – Wojtas,Szymon, Laczna k. Kielc Poland, 2011.

    10.Nge2 A) 10...Nh6 11.Qb3 (11.Ba4 Qe7 12.Nf4 Bf4 13.ef4+=) 11...Kf7 12.Na4 Nb6 13.Nc5=; B) 10...Rc8 11.Nf4 (11.0-0 Ne7 12.Na4 b6 13.Nac3=) 11...Bf4 12.ef4 Ne7 13.f3+=; C) 10...Ne7 11.Nf4 (11.Qb3 f5 12.Na4 b6 13.Nf4=) 11...Bf4 12.ef4 0-0 13.0-0=.

    10.Nh3 Ne7 11.0-0 (11.Nf4 Bf4 12.ef4 0-0 13.0-0=) 11...0-0 12.Nf4 Bf4 13.ef4=.

    7.Nc3 Ne7

    8.Qa4 0-0 9.Qb3 a6 10.cd5+/– (10.c5 Bc7 11.Ne4 Ng6+/–) 10...cd5 (10...Nd5 11.Ne4 Bc7+/–) 11.Nd5 (11.Ne4 Bc7+/–) 11...Be6 12.Bc4 (better is 12.Ne7 Qe7 13.Bc4 Bc4 14.Qc4 Kh8 15.Ne2+=) 12...b5?? (better is 12...Nd5 13.f3 Re8 14.Bd5 Bb4 15.Qb4 Bd5-/+) 13.Ne7+– Qe7 14.Be6 Kh8 15.Ne2 Ra7 (15...Nd7 16.Ng3 Rae8 17.d5 Bg3 18.hg3+–) 16.Nc3 Qe8 (16...f5 17.g4 fg4 18.Ne4+–) 17.Ne4 Be7 18.Rc1 f5 19.Nd2 Rf6 (19...a5 20.ba5 Qg6 21.0-0 Ra5 22.Rc2+–) 20.d5 (better is 20.Rc8 Bd8 21.Rb8 Re6 22.Qe6 Qe6 23.Rd8 Qg8 24.Rg8 Kg8+–) 20...Qg6 (20...Rf8+–) 21.Bf6 gf6 22.Rc8 Kg7 23.Rg8 Kh6 24.Rg6 Kg6 25.Qc2 Nd7 26.Qf5 Kg7 27.Ne4 (better is 27.Qg4 Kh6 28.Bd7+–) 27...Rc7 28.0-0 (28.Qg4 Kh6 29.Ng3 Rc1 30.Kd2 Bb4 31.Kc1 Ba3 32.Kc2 a5 33.Nf5) 28...a5 29.d6 1–0. Rajewski,C – Daguzon,J, Wch Seniors Bad Woerishofen, 1992.

    8.Qa4 0-0 9.Qb3 Be6 10.c5+= Bc7 11.Ne4 a5 (11...Ng6 12.Nf3+/–) 12.Nf3 (12.ba5 Ba5 13.Nc3 Nd7+/–) 12...Qd7 13.Nc3 ab4 14.ab4 Ra1 15.Ba1 Na6 (15...Bg4 16.Be2+/–) 16.b5+– cb5 17.Bb5 Nc6 18.0-0 Kh8 19.Rb1 g5 (19...Rb8 20.Ba4+–) 20.Ba4 Rb8 21.Qb5 (21.Nb5 g4 22.Nd2 Ba5+–) 21...g4 22.Ne1 (22.Nd2 Qf7+–) 22...h5 (22...Qf7 23.Qe2 Ra8 24.Nd3+–) 23.g3 (23.e4 h4+–) 23...h4 (23...Bf5 24.Nd3+–) 24.gh4 (24.e4 hg3 25.hg3 Qf7 26.ed5 Bd5 27.Nd5 Qd5+–) 24...Qh7 25.Ng2 Bf5 (25...Bd7 26.Qb3 (26.Nd5?! Ncb4 27.Rb4 Bb5 28.Rb5 Qd3+=) 26...Bf5 27.Rb2+– (27.Nd5?! Bb1 28.Nc7 Nc7 29.Bc6 Ra8 30.Qb7 Ra1=)) 26.Rb2 Ne7 (26...Nab4 27.e4 (27.Rb4?! Bd3+/–) 27...Na6 28.ef5 (28.ed5?! Nd4 29.Qc4 Be5=) 28...Nd4 29.Qd3 Nf3 30.Kh1 Nc5 31.Qd5 Na4 32.Na4+/–) 27.Qe2 (27.Bb3 Bd3 28.Qa4 Nf5 29.Bd5 Nh4+–) 27...Ng6 (27...Ba5 28.Rb7! Rb7 29.Qa6 Bc3 30.Qf6 (30.Bc3?! Rb1 31.Ne1 Qh4+/–) 30...Kg8 31.Bc3+–) 28.f4 (better is 28.f3 gf3 29.Qf3+–) 28...Ba5?? (28...Ne7+–) 29.Nd5 (better is 29.Qa6! Bc3 30.Qf6 Qg7 31.Qf5 Bb2 32.Bb2 Ne7 33.Qh5 Kg8+–) 29...Nh4 (29...Qf7 30.Bb3 Ne7 31.e4+–) 30.Nf6 Nf3 31.Qf3! gf3 32.Nh7 Bh7 33.Nh4 Bc3 34.Nf3 Bb2 (34...Ra8 35.Ng5 Nc5 36.Rg2+– (worse is 36.dc5 Ra4 37.Nf7 Kg7 38.Rg2 Kf7 39.Bc3 Be4+–)) 35.Bb2 Nb4 (35...Kg7 36.Ng5+–) 36.d5 Kg8 37.Ng5 Bf5 38.Bb5 (38.d6 Nd3 39.Bc2 Ra8+–) 38...Rc8 39.d6 Kf8 (39...Rc5 40.d7 Rd5 41.Bc4 Bd7 42.Bc3+–) 40.Bc3 Nc6 (40...Na6 41.d7 Rd8 42.Ba6 ba6 43.c6 Bd7 44.Bf6+–) 41.e4 (41.e4 Bd7 42.Nh7 Kf7 43.Bc4 Kg6 44.Nf6+–) 1–0. Deneuville,Christian – Pichugin,Sergey, corr W–11Cup prel032, 1999.

    8.Qa4 0-0 9.Qb3 f5!?= 10.Nh3 Kh8 11.b5 dc4=.

    8.Qa4 0-0 9.b5 Nd7 10.cd5 cd5 11.Qb3 Qa5=.

    8.Qa4 dc4 9.b5 a6 10.Bc4 Bf5 11.Ba2 h6=.

    8.Qa4 Qd7 9.b5 Bc7 10.Rc1 f5 11.bc6 Nbc6+=.

    8.Qa4 Be6 9.cd5 Bd5 10.Nd5 Nd5 11.Rc1 b5=.

    8.Qb3 Bc7!?=.

    8.Qb3 Be6 9.c5 Bc7 10.Ne4 0-0 11.Ne2 Bf7 12.Nd2 Nf5 13.Ng3 Nh4 14.Nf3 f5 15.Nh4 Qh4 16.Nf5 Qf6 17.Nd6! Bg6 (17...Bd6 18.cd6 Passed pawn) 18.f3 (18.Nb7 Qf2 19.Kd1 Bh5 20.g4 Bg4 21.Be2 Qe2 22.Kc1 Rf1 23.Rf1 Qf1 24.Kd2 Qe2 25.Kc3 Qe3 26.Kc2 Bf5 27.Kd1 Qb3 28.Ke2 Bg4 29.Kf1 Qf3 30.Kg1 Bh3 31.Nd6 Qg2) 18...Bd6 19.cd6 Nd7 20.Be2 Rae8 21.0-0 Kh8 22.e4! Qd6 (22...de4 23.fe4 Passed pawn) 23.e5 Qe6 24.Bd3 Nb6 25.Rae1 Nc4 26.Bc1 Bf5 27.Kh1 Qg6 28.Bf5 Rf5 29.Qd3 h5 30.Rg1 Qf7 31.f4 Re6 32.Qh3 Rh6 33.Qh4 Qd7 34.Rgf1 Nb6 35.Rf3 Na8 36.Rg3 Nc7 37.Rg5 Qe7 38.Qh3 Rf8 39.Rh5 Rh5 40.Qh5 Kg8 41.f5 Nb5 42.f6! Rf6 (42...gf6 43.e6 Passed pawn) 43.Qg4 Qe6 44.Qh4 Rf8 45.h3 Nc3 46.Kh2 ½–½. Nikolaev,Dmitriy – Samarin,Vladimir (2100), Kimry–ch, 2008.

    8.Qb3 Be6 9.c5+/– Bc7 10.Ne4 Bf7 (10...de4 Exploits the pin 11.Qe6 Annihilates a defender: e6) 11.Nc3 0-0 12.Bd3 Bg6 13.Bg6 Ng6 14.e4 (14.b5 Nd7+/–) 14...Re8 (14...Nf4 15.0-0-0 a5 16.g3 ab4 17.Qb4+/–) 15.Nge2 Kh8 16.ed5 Nf4 (better is 16...cd5!? 17.Nd5 Re2 18.Ke2 Qd5 19.Qd5 Nf4 20.Ke3 Nd5 21.Ke4 Nf4+–) 17.d6 Bd6 18.cd6 Qd6 19.g3 (19.Kf1 Ne2 20.Ne2 Nd7+–) 19...Nd3 (19...Ne2 20.Ne2 Qe7 21.Qf3+–) 20.Kf1 Nb2 21.Qb2 Qe6 (21...Nd7 22.Kg2+–) 22.Kg2 Qg4 23.Rhe1 Nd7 24.Nf4 g5 (24...Nb6 25.Ne4+–) 25.Ne6 Re6 (25...Ne5 26.de5 Qe6 27.Ne4 Qe5 28.Qe5 Re5 29.Nf6+–) 26.f3 Re1 (26...Qf5 27.g4 Re1 28.gf5+– (28.Re1?! Qf4+=)) 27.fg4 (27.fg4 Re3 28.d5+–; 27.Re1?! Qf5+/– (27...Qd4?? 28.Rd1 Qe5 29.Rd7+–)) 1–0. Woelfelschneider,Peter – Slavin, 2010.

    8.Rc1 Be6 9.cd5 cd5 10.Nb5 Nbc6 11.Nd6 Qd6 12.Ne2 0-0 13.Qd2 f5 (13...Rac8 14.b5 Nb8 15.Nc3=) 14.b5+= Nd8 15.Nf4 Bd7 (15...Rc8 16.Rc8 Nc8 17.Be2+=) 16.Bc3+/– Qf6 (16...Qa3? 17.Bb4 Qb3 18.Be7+–) 17.Qa2 Rc8 18.Nd5 Nd5 19.Qd5 Be6 20.Qd6 Nf7 21.Qb4 Qg5 22.Rc2 Rfd8 23.Qa4 Nd6 24.Bb4 (24.Qa7!? Bc4 25.h4+/–) 24...Rc2+= 25.Qc2 Rc8 26.Qb1 (26.Qa4 Rc1 27.Kd2 Rf1 28.Rf1 Qg2+/–) 26...Nc4 27.Qb3 Bf7 28.Qc2 Be6 29.Qb3 (29.Bc5 Na3 30.Qc1 b6 31.Qa3 bc5=) 29...Kf7 (29...Bf7!?=) 30.h4+= Qg6 (30...Qd8 31.Bc5 Rc5 32.Qa4–+) 31.h5 Qg5 32.h6 g6 (32...Nd2 33.Qb2 Nf1 34.Kf1 Bc4 35.Kg1 Bb5 36.Bd6+=) 33.Qc3 (33.Bc5 Nd2 34.Qa4 Nf1 35.Kf1 Rc7+/–) 33...Ne5 (33...Qf6 34.Be2+=) 34.Qa1 (34.Qd2!? Nc4 35.Qe2+=) 34...Nd3= 35.Bd3 ed3 36.d5 (36.Rh2 f4 37.d5 Bd5 38.Qg7 Ke6=) 36...Bd5+= 37.Qg7 Ke6 38.Bc3 (better is 38.Rh2!?=) 38...Qg2-/+ 39.Qf6 ½–½. marekt – Tabori, ChessWorld.net, 2003.

    8.cd5 cd5 9.Bb5 Nbc6 10.f3 f5 11.Nh3 0-0 12.f4 Kh8 (12...a5 13.ba5 Na5 14.0-0-/+) 13.Ba4 Be6 (13...h6 14.0-0=) 14.0-0 (14.Ng5 Qd7+=) 14...g6 15.Kh1 (15.Bb3!?+=) 15...Nc8= 16.Ng5 Bg8 17.Bb3 Nb6 18.Qe1 h6 19.Nh3 Be7 20.Ne2 a6 21.Bc3 Qd6 22.Rg1 h5 (22...Bf6!?-/+) 23.Qb1 Nd7 24.Be1 b5 25.Ng5 Nb6 26.h3 Nc4 27.Bc4 bc4 28.g4? (better is 28.Qc2!?-/+) 28...Bg5 29.fg5 hg4 30.hg4 Be6 31.Nf4 Kg7 32.Bg3 Qe7 (32...Qd7 33.Kg2 fg4 34.Rh1-/+) 33.gf5? (better is 33.b5 ab5 34.Qb5+=) 33...Rf5–+ 34.Rg2 Rh8 35.Kg1 Rg5 36.b5 Rb8?? (36...Bh3!? 37.Nh3 Rh3–+) 37.a4 (37.Ne6!? Qe6 38.Bb8 Rg2 39.Kg2 Nb8 40.Qh1 Qg4 41.Kf2 ab5 42.Rb1+=) 37...Rb7 38.Qe1? (better is 38.Qb2 Bf7 39.b6-/+) 38...ab5–+ 39.ab5 Rb5 40.Kf1 Qf7 41.Ra6 Bd7 42.Kg1 Nb4?? (42...Rg4 43.Bh4 Rg2 44.Ng2–+) 43.Rd6?? (43.Rg6 Qg6 (43...Rg6 44.Ng6 Kg6 45.Bc7 Bg4 46.Rg4 Kf5 47.Rf4 Ke6 48.Rf7 Kf7 49.Qf2 Ke7 50.Qh4 Kf7 51.Qf4 Ke8 52.Qh6+–) 44.Ng6 Nd3+= (44...Kg6? 45.Bh4 Rg2 46.Kg2+–)) 43...Nd3?? (better is 43...Kh7–+) 44.Nd3= cd3 45.Be5 Re5 46.de5 Exerts pressure on the isolated pawn 46...Be6 47.Rf2 Bf5 (47...Qe7 48.Rf6 Bf7 49.Qh4 Rb1 50.Kg2 Rb2 51.Kh3=) 48.e6 (48.Rf6 Qb7 49.R2f5+–) 48...Qf6+= 49.Qc1 Qg5 (49...Rb7!? 50.Rd5 Qe6+=) 50.Rg2= Qh4?? 51.Rd7 Kh6 52.Qa1 Rb8 53.Qg7 1–0. Macedo,A Soares De (2025) – Santos,L Rocha De Azevedo (2010), 6th Magistral RN – Grupo B, 2009.

    8.cd5 cd5 9.Nb5 0-0 10.Rc1 Be6 11.Ne2 Nbc6 =.

    8.f3 ef3 9.Nf3 Be6 10.c5 Bc7 11.Bd3 Bf5 12.0-0 0-0 13.Bf5 Nf5 14.Qd3 Qc8 15.Rae1 a6 16.e4 0–1. Fournier,Frederic (2215) – Pretto Rafael Antonio (2320), corr Match ARG–FRA, 2001.

    7.cd5 cd5

    8.Qb3 A) 8...Ne7 9.Nc3 (9.Ne2 Na6 10.Nec3 Nc7 11.Be2 Be6 12.0-0=) 9...Nbc6 10.Be2 Bf5 11.f3 a5 12.b5=; B) 8...f5 9.Nc3 (9.Nh3 Nf6 10.Nc3 Nc6 11.Rc1 a5 12.b5=; 9.Ne2 Nf6 10.Nbc3 a5 11.Qa4 Bd7 12.b5=; 9.Bb5 Nc6 10.Nc3 a6 11.Be2 Nf6 12.Nh3=) 9...Nf6 10.Rc1 Nc6 11.Nh3 a5 12.b5=; C) 8...Bf5 9.Be2 (9.Nc3 Ne7 10.Nb5 Nbc6 11.Nd6 Qd6 12.b5=) 9...Ne7 10.Nc3 Nbc6 11.f3 a5 12.b5=; D) 8...Nc6 9.Nc3 (9.Be2 Be6 10.Nc3 Qd7 11.Rc1 Nge7 12.f3=; 9.Ne2 f5 10.Nf4 Nf6 11.Be2 Bf4 12.ef4=) 9...Nge7 10.Rc1 Bf5 11.Nge2 Rc8 12.Ng3=.

    8.Bb5 Nc6 9.Ba4 Nge7 10.Nc3 Be6 11.f3 f5 12.Nh3=.

    8.Bb5 Nc6 9.Qb3 a6 10.Bf1 f5 11.Nc3 Nf6 12.Nh3+=.

    8.Bb5 Nc6 9.Nc3 Be6 10.Nge2 (10.Qb3 Qd7=) 10...Nge7 (10...a5 11.ba5 Nge7 12.Qb3+=) 11.0-0 (11.Qb3 Kf7=) 11...0-0 12.Ba4 f5 (12...a6 13.Bb3 f5 14.Nf4 Bf4 15.ef4=) 13.Bb3 (13.Rc1 Rc8=) 13...Qd7 (13...Qc7 14.h3=) 14.Nb5 (14.Rc1 a6=) 14...Bb8 (better is 14...Nb4 15.Nd6 Nd3 16.Nb7 Qb7=) 15.Rc1 (better is 15.Nbc3!?=) 15...Nb4!-/+ 16.ab4 Qb5 Annihilates a defender: b5 17.Rc5 (17.Ba3 Bd6-/+) 17...Qd7 (17...Qb4 18.Nc3 a6 19.Na4-/+) 18.Ba4 (18.Nf4 Bf4 19.ef4 b6-/+) 18...Qd8 (18...Qd6 19.g3–+) 19.Nf4-/+ Bf7 (19...Qd6 20.g3 Bf7-/+) 20.h4 (20.Qd2!?-/+) 20...Bd6–+ 21.b5 (21.h5 b6 22.Rc2 Bf4 23.ef4 Qd6–+) 21...b6 (21...Nc8!? 22.g3–+) 22.Rc3-/+ Qd7 (22...Bf4 23.ef4 Re8 24.Qd2-/+) 23.Ba3 Rfc8 (23...Bf4 24.ef4 Rfc8 25.Rc8 Nc8 26.Qc2-/+) 24.Rc8 Rc8 (24...Nc8 25.Bd6 Nd6 26.h5-/+) 25.Bd6 Qd6 26.Qa1 (26.h5 Be8-/+) 26...Qb4 (26...Qd7 27.h5-/+) 27.Rb1+= Qd6 (27...Qc4 28.Bb3 Qb5 29.Qa7+=) 28.Bd1 (28.Rf1!?=) 28...Rc7+= 29.Rb3 (29.h5 Nc8+=) 29...g6 (29...Ng6 30.Ng6 Bg6 31.Ra3-/+) 30.Ra3 (30.Rc3 Rc3 31.Qc3 Qd7+=) 30...Qd7 31.Be2 Kf8 (31...Nc8 32.Rc3-/+) 32.Kh2 (32.Qb2 Nc8+=) 32...h6 33.Rb3 (33.Nh3 Nc8+=) 33...Kg7 (33...Ke8 34.Kg1+=) 34.Rb1 Qc8 (34...Nc8 35.Rc1-/+) 35.f3 (35.Kg1 Qe8+=) 35...Qb8 (35...g5 36.hg5 hg5 37.Nh3 ef3 38.gf3-/+) 36.g3 (36.Kh1 g5 37.hg5 hg5-/+) 36...g5 37.hg5 (37.Ng2!?-/+) 37...hg5–+ 38.Ng2 ef3 (38...Bh5 39.Rf1 Qe8 40.Qd1-/+) 39.Bf3 Rc8 (39...Qh8 40.Kg1 Qh3 41.Rf1 Qg3 42.Be2–+) 40.Qa3 (40.Rh1 Rh8 41.Kg1 Rh1 42.Kh1 Qg3 43.Qa7 Nc8–+) 40...Ng6 (better is 40...Rh8 41.Kg1 Kf8–+) 41.Ne1? (better is 41.Qa2 Rh8 42.Kg1 Qg3 43.Bd5 Bd5 44.Qd5–+) 41...Rh8 42.Kg2 g4 43.Bg4 (43.Kf2 gf3 44.Nf3 Qc7–+) 43...fg4 44.Nd3 Rh3 45.Nf4 Nf4 (45...Nf4 46.ef4 Qe8–+) 0–1. Sunyer,Julio – Golmayo de la Torriente,Manuel, Sitges, 1934.

    8.Bb5 Nc6 9.Nc3 Nge7 10.Qb3 f5 11.Nh3 a5 12.0-0=.

    8.Nc3 Be6 9.Qb3 Qd7 10.f3 Ne7 11.Be2 Nbc6 12.Rc1=.

    8.Nc3 Be6 9.Bb5 Kf7 10.Nge2 Nc6 11.Qb3 a6 12.Bc6 bc6 13.Rc1 Ne7 14.Na4 Rb8 15.Nc5 g5 (better is 15...a5=) 16.Na6+/– (16.Ne6?! Ke6 17.Nc3 f5=) 16...Rc8 17.Nc5 h5 18.Ne6 Ke6 19.Nc3 Qc7? (better is 19...Kd7+/–) 20.Ne4+– Bh2 (20...h4 21.h3+–) 21.Nc5 (better is 21.g3 Bg3 22.Ng3 h4+–) 21...Kf7 22.Ke2 (22.Qd1!? Ra8+–) 22...Bd6 23.g3 h4 24.gh4 gh4 25.Rcg1 Rcg8 26.Rg8 Kg8 27.Qd3 Kf7 28.e4 Ng6 29.ed5?? (better is 29.Kd1+–) 29…Nf4–+ (29...Nf4 30.Kd1 Nd3 31.Nd3 cd5–+) 0–1. Fournier,Frederic (1990) – alhakem (1610), Active, 2005.

    8.Nc3 Be6 9.Nb5 Be7 10.Ne2 Nc6 11.Nf4 Bf7 12.Qg4 Nh6?? (better is 12...g6 13.Ne6 Be6 14.Qe6 a5 15.ba5 Ra5+/–) 13.Qg7+– (13.Qg7 Rg8 14.Qh6+–) 1–0. kamret (2240) – zzz11, GameColony.com, 2003.

    8.Nc3 Be6 9.Nb5 Be7 10.Ne2 Nh6 11.Nf4 Bf7 12.Rc1 Nc6 13.Nc3 0-0 (13...f5 14.Qb3+/–) 14.Nfd5! Bd6 (14...Bd5 15.Nd5 Combination) 15.Bc4 Kh8 (15...f5 16.Qe2+/–) 16.0-0 (16.Qe2 a5 17.b5 Ne7 18.Ne7 Qe7 19.Bf7 Rf7+=) 16...f5 (16...Ne7 17.h3+/–) 17.f4 ef3 (17...Rc8 18.Qb3 Ne7 19.Rf2+=) 18.Qf3 Qh4 19.g3 Qg5 20.Nb5 Bb8 21.Ndc7 Bc4 (21...Bc7 22.Nc7 Rac8+–) 22.Rc4 Bc7 (22...a6 23.Na8 ab5 24.Rc2+–) 23.Nc7 Rac8 24.Ne6 Qe7 (24...Qf6 25.Nf8 Rf8 26.e4+–) 25.d5 (worse is 25.Nf8 Rf8 26.e4 Rd8+–) 25...Ne5 26.Be5 Rc4 27.Bg7 Qg7 28.Ng7 Kg7 29.d6 Re4 (29...Rc6 30.Qd5+–) 30.d7 Rd8 31.Qh5 Rg4 (31...Rd7 32.Qg5 Kh8 33.Qh6+–) 32.Qe8 (32.Qe8 Rd7 33.Qd7 Kh8 34.Qe8 Kg7 35.Rd1+–) 1–0. kamret (2185) – tvs (2005), GameColony.com, 2003.

    8.Nc3 Be6 9.Nb5 Ne7 10.Qh5 A) 10...g6 11.Qd1 0-0 (11...Nf5= 12.Nh3=) 12.Nd6=; B) 10...Bf7 11.Qg4 0-0 12.Rc1=.

    8.Nc3 Ne7

    9.Qb3 Nbc6 10.Rc1 Bf5 11.Nge2 Rc8 12.Ng3=.

    9.Nb5 0-0 10.Rc1 a6 11.Nd6 Qd6 12.Ne2 b5 13.Nf4 Nd7 14.Qh5 Nb6 15.Rc2 Bd7 16.Ne2 g6 17.Qh6 Nf5 18.Qf4 Rfc8 19.Rc5 Qe7 20.h4 Nc4 21.Bc1 Be6 22.Nc3 Qd7 23.f3 ef3 24.gf3 Re8 25.Bd3 Nfe3 26.Be3 Ne3 27.Qe3 Bf5 28.Be4 de4 29.fe4 (29.Ne4? Be4 30.fe4 Qg4–+) 29...Rad8 30.Kf2 Be4 (better is 30...Qe6 31.Kf3 Qb3+=) 31.Ne4+– Qe7 (better is 31...Kh8+–) 32.Re1 f5 33.Ng5 Qd6 (33...Qd7 34.Ne6 Rc8+–) 34.Qb3 Kh8 1–0. kamret (2240) – zzz11, GameColony.com, 2003.

    9.Nb5 0-0 10.Rc1 Nbc6 11.Nd6 Qd6 12.b5 Na5 13.Qa4 b6 14.Bc3 Nb7 15.Bb4 Qd8 16.Ne2 Be6 17.Nf4 Bf7 18.Be2 Nd6 19.0-0 g5 20.Nh3 h6 21.f4 Be6 22.fg5 hg5 23.Nf2 f5 24.Nh3 Nec8 25.Qb3 Kg7 26.Rc6 Kg6? 27.Bd6 Nd6 28.Qb4 1–0. mrkt – sasan_amiri, ChessWorld.net, 2003.

    9.Nb5 0-0 10.Ne2 a5 11.Nd6 Qd6 12.Qa4=.

    9.Nb5 Be6 10.Qh5 g6 11.Qd1 0-0 12.Rc1 Nec6 13.Ne2 Be7 14.Nf4 Bf7 15.Nc3 g5? (better is 15...Kh8+/–) 16.Nfd5!+– a6 (16...Qd5 17.Nd5) 17.Ne7 Ne7 18.Ne4 Nd5 19.h4 Bg6 (19...Qe7 20.Qf3 Be6 21.hg5 fg5 22.Qh5+–) 20.Nc5 gh4 (20...Qe7 21.Qf3 Rd8 22.Bc4+–) 21.Ne6 Qe7 22.Nf8 Qf8 (22...Kf8 23.Qg4 f5 24.Rc8 Kg7 25.Qf3+–) 23.Bc4 Bf7 (23...Qd6 24.Qf3 Bf7+–) 24.Qg4 Kh8 25.Bd5 Bd5 (25...Nc6 26.Qh4 Bg6 27.Bc6 bc6 28.Rc6+–) 26.Rc8 (26.Rc8 Nd7 27.Rf8 Nf8 28.Qf5+–) 1–0. kamret (2250) – avet (1900), GameColony.com, 2003.

    9.Rc1 a5 10.Qa4 Bd7 11.b5 Na6 12.f3=.

    5.d4 Ne7

    6.de5 Be5 A) 7.Nc3 A1) 7...0-0 8.Nf3 (8.Bd3 a5 9.Nf3 ab4 10.ab4 Ra1 11.Qa1=) 8...a5 9.b5 Bg4 10.h3 Bh5 11.Be2=; A2) 7...c6 8.Qh5 (8.Bd3 0-0 9.Nf3 Bg4 10.h3 Bh5 11.0-0=; 8.Be2 0-0 9.Nf3 a5 10.b5 cb5 11.0-0=; 8.Nf3 0-0 9.Bd3 Bg4 10.h3 Bh5 11.0-0=) 8...g6 9.Qd1 0-0 10.Nf3 Bg4 11.h3=; A3) 7...Be6 8.Bd3 (8.Nf3 0-0 9.Bd3 a5 10.0-0 Bg4 11.h3=; 8.Be2 a5 9.Nf3 0-0 10.0-0 Qd7 11.Qd2=) 8...a5 9.Nf3 0-0 10.0-0 ab4 11.ab4=; A4) 7...Nd7 8.Nf3 0-0 9.Ne5 Ne5 10.Be2 Be6 11.0-0=; A5) 7...a5 8.b5 (8.Nf3 ab4 9.ab4 Ra1 10.Ba1 0-0 11.Be2=) 8...0-0 9.Nf3 Qd6 10.Be2 Be6 11.0-0=; B) 7.Be5 fe5 B1) 8.Qh5 Ng6 9.c4 a5 (9...0-0 10.cd5 Qd5= 11.Nd2=) 10.cd5 Qd5 11.Nc3=; B2) 8.c4 0-0 9.cd5 Nd5 10.e4 Nf4 11.Qd8=.

    6.Nf3 e4 7.Nfd2 c6 8.c4 0-0 9.Be2 Be6 10.b5 f5 11.cd5 (11.c5 Bc7=) 11...cd5 (11...Nd5 12.Nc3-/+) 12.g3 Nd7 13.Qb3 Rc8 14.Nc3 g5 (14...Nb6 15.f3=+) 15.h4 g4 16.a4 (16.Rc1 Qa5=) 16...h5 (16...Nb6!?=+) 17.0-0 Nf6 18.Ba3 Kf7 (18...Ba3 19.Ra3 Qd6 20.a5=) 19.Bd6+= Qd6 20.a5 Rfd8 21.Na4 b6 22.ab6 ab6 23.Rfc1 Rc1 24.Rc1 Rc8 25.Rc8 Bc8 26.Nc3 Be6 27.Na2 Qc7 28.Nb4 (28.Bf1 Nc8+=) 28...Qc1= 29.Nf1 Nd7 30.Kg2 Ke8 31.Qa4 Kd8 (31...Qb2 32.Nc2=) 32.Nc6 Nc6? (better 32...Ke8!?+=) 33.bc6+- Nf6 34.Qb5?? (better 34.Qb4 Ke8 35.Qb6+-) 34...Kc7= 35.Qb4 Ng8?? (better 35...Qc6 36.Qf8 Nd7=) 36.Bb5+- Qd1 37.Qf8 Qc1 (37...Qb3 38.Ba6 Kc6+-) 38.Qg7 (38.Qe8 Qa3 39.Qe6 Qe7 40.Qg8 Qd6 41.Qf7 Kc8 42.Ba6 Kd8 43.c7 Qc7 44.Qf8 Kd7 45.Bb5 Ke6 46.Qh6 Kf7 47.Qh7 Kf8 48.Qc7 Kg8 49.Be8 f4 50.Bg6 f3 51.Kg1 b5 52.Qf7 Kh8 53.Qf8) 38...Kd6 39.Qe5 (better 39.Qg5 Kc7 40.Qf4 Kd8 41.Qd6 Ke8 42.Qe6 Kf8 43.Qf5 Kg7 44.Qd7 Kg6 45.c7+-) 39...Ke7 40.c7 (40.Qc7!? Kf8+-) 40...Nf6 41.Nd2 Kf7 42.Nb3 (better 42.Nc4! dc4 43.Qe6 Ke6 44.c8Q Kf7 45.Bc4 Kg6 46.Qe6 Qc4 47.Qc4+-) 42...Qc3+= 43.Nc5! bc5 (43...bc5 44.Qe6 Promotion) 44.Qe6! Ke6 45.c8Q Kf7 46.Qc7 Kg6 47.Qc5 (47.Qd6 Kg7 (47...cd4 48.Be8 Kg7 49.Qe7 Kg8 50.Qf7 Kh8 51.Qf6 Kg8 52.Qg6 Kh8 53.Bf7 Qe3 54.Qg8) 48.Bd7 Nd7 49.Qd7 Kh8 50.Qf5 cd4 51.Qd5 de3 52.Qh5 Kg7 53.Qg4 Kh8 54.Qh5 Kg7 55.Qg5 Kh7 56.Qe3 Qc6+-) 47...Qb3 (better 47...Qc5!? 48.dc5 Kf7=) 48.Qb6+- Qc2 (better 48...Kg7+-) 49.Be8 Kg7 50.Qb7 Kh8 51.Qf7 (better 51.Bg6 f4 52.Qe7 f3 53.Kg1 Qc6+-) 51...Ng8 (51...Ne8 52.Qe8 Kg7 53.Qe7 Kg8 54.Qg5 Kh8 55.Qh5 Kg8 56.Qf5 Qc4+-) 52.Qh5 Kg7 53.Qf7 Kh8 54.Qf5 Qe2 (54...Qc7 55.Bf7 Qd8 56.Bd5 Nf6 57.Be4 Qe7+-) 55.Bh5 (better 55.Qh5 Kg7 56.Qg6 Kh8 57.Bf7 Qf3 58.Kg1+-) 55...Qf3 56.Qf3 gf3 (56...ef3 57.Kf1 Nf6+-) 57.Bf3! ef3 58.Kf3 Kg7 59.e4 de4 (59...Nf6 60.ed5 Nd5 61.Ke4 Nc3 62.Ke5+-) 60.Ke4 Kf6 (60...Kg6 61.g4+-) 61.f3 (61.g4 Kg7+-) 61...Ne7 (61...Ke6 62.g4 Nf6 63.Kf4 Nd5 64.Kg5+-) 62.g4 Nc6 (62...Nc8 63.d5+-) 63.f4 Na5 64.h5 1-0. alzaeem1973 (2300) - dirlic (2350), Rated Classical game, lichess.org, 2016.

    6.c4 c6

    7.Nd2 0-0 8.Qb3 Kh8 9.Rc1 a6 (9...Be6 10.e4=) 10.h4 (10.de5 fe5 11.Ngf3 Nd7=) 10...b5=+ 11.c5 Bc7 12.h5 h6 13.Ngf3 e4 14.Nh4 f5 15.Be2 f4 16.Kd1 (16.Nf1 Qe8-/+) 16...fe3 17.fe3 a5 18.Kc2 (18.ba5 Ra5 19.g4 Kh7-/+) 18...ab4 19.ab4 Rf2 20.Rce1 Bg3 21.Bd1 (21.Kd1 Ra4-+) 21...Bh4 22.Rh4 Nf5 23.Rh2 Qg5 24.g4?? (better 24.Kc1-+) 24...Rh2 25.gf5 Bf5 26.Kb1 (26.Re2 Rh3 27.Rf2-+) 26...Rd2 27.Bc1 Rd3 28.Qb2 Nd7 (28...Bg4 29.Bc2 Rda3 30.Qa3 Ra3 31.Ba3-+) 29.Bc2 (29.Qh2 Bg4 30.Bc2 Rc3-+) 29...Nf6 30.Bd3 ed3 31.Bd2 Ne4 32.Rd1 Qg2 33.Bc1 If White now only could play Bg4... 33...Qe2 (33...Nc3! 34.Qc3 Qa2) 34.Rd2-+ Nd2 (34...Qe3 35.Qa2 Nc3 36.Kb2 Na2 37.Kb1 Nc3 38.Kb2 Qd4 39.Rd3 Ra2 40.Kb3 Qc4) 35.Bd2 Qd1 36.Qc1 Qb3 (36...Qa4 37.Qc3 Be4 38.Kc1 Qa2 39.Kd1 Rf8 40.Ke1 Bg2 41.Qd3 Qa1 42.Qb1 Qb1 43.Bc1 Qc1 44.Ke2 Bf1) 37.Qb2 Qb2 (37...Qc4 38.e4 de4 39.Be3 d2 40.Qd2 Qb3 41.Qb2 Qe3 42.Kc2 Qe2 43.Kc1 Qe1 44.Kc2 e3 45.Kb3 Qd1 46.Qc2 Qc2) 38.Kb2 g5 39.hg6 h5 40.e4 Be4 41.Bf4 h4 42.Be5 Kg8 43.Kc3 h3 (43...Ra3 44.Kb2 d2 45.Bc7 d1Q 46.Ka3 Qc1 47.Ka2 Bd3 48.Kb3 Bc4) 44.Kd2 h2 45.Bh2 Ra2 (45...Ra2 46.Ke3 d2 47.Bg1 d1Q 48.Kf4 Qf3 49.Ke5 Ra7 50.Bh2 Re7 51.Kd6 Qf6) 0-1. zembelek (2145) - amayak (2115), Rated Blitz game, lichess.org, 2013.

    7.Nd2 0-0 8.Bd3 Nd7 9.f3 b6 10.Qc2 g6 11.0-0-0 a5-/+ 12.c5 Bc7 13.h4 ab4 14.ab4 bc5 15.bc5 ed4 16.ed4 Ba6 17.Ba6 Ra6 18.Nb3 Ra2 19.Kd2 Bf4–+ 20.Ke2? Nf5 21.Kd3 Ne3 22.Qb1 Rb2 23.Qb2 Nd1 24.Qe2 Ne3 25.Nh3 Bh6 26.f4 Re8 27.Re1 Qb8 28.Kc3 Bf4 29.Qf3 h5 30.Nf4-/+ Ng4 31.Re8 Qe8 32.Qe2 Qe2 33.Ne2 f5 34.Nf4=+ Nf8?? 35.Na5+– Kf7 36.Nc6 Ne6 37.Nd5 f4 38.Kd3 Nf2 39.Ke2 Ne4 40.Ne5 Kg7 41.Kd3 Nf2 42.Kc4 Ne4 43.c6 Nd6 44.Kd3 Nb5 45.Ne7 g5 46.hg5 Ng5 47.Nd5 Ne6 48.Nb6 Kf6 49.Nf3 Kf5 50.d5 Nc5 51.Kc4 Nb7 52.Kb5 Nd6 53.Kb4 Kf6 54.c7 1–0. supertimchan (1745) – lion, net–chess.com, 2002.

    7.de5 fe5 8.c5 Bc7 =.

    7.de5 fe5 8.cd5 cd5 9.Nf3 Bg4 10.h3 Bf3 +=.

    7.de5 fe5 8.cd5 cd5 9.Nf3 Bg4 10.h3 Bh5 11.Qa4 Nbc6 12.b5 Bf3 13.bc6+– bc6 14.gf3 Rb8 15.Bc3 0-0 16.Rg1 Rf3 17.Rg7! Kg7 18.Qg4 Ng6 19.Qf3 Qb6 20.Bd3 Rf8 21.Qg3 d4 22.Bg6 hg6 23.ed4 ed4+/– 24.Qd6 dc3 25.Qe7 Rf7 26.Qe5?? Kh7–+ 27.Qe3 Qb2 28.Qc3 Qf2 29.Kd1 Rd7?? 30.Nd2+– Qf1 31.Kc2 Qf5 32.Kc1 Rd5 33.Qe3 Re5 34.Qa7 Kh6 35.Qd4 Rc5 36.Kd1 Rd5 37.Qe3 Kg7 38.Rc1 Qh5?! 39.Kc2 Qf5 40.Ne4 Re5 41.Re1 c5 42.h4 Qe6 43.Qc3 Qa2 44.Kc1 Qe6 45.Nd2 (45.Ng5!? Qc4 46.Qc4 Re1 47.Kd2 Re7 48.Qc3 Kg8 49.Qc5 Rd7 50.Kc3 Kg7 51.Qe5 Kf8+–) 1–0. COMP – NN, 2003.

    7.de5 fe5 8.Nf3 e4 9.Nd4 (worse is 9.Bg7 Rg8 10.Bd4 ef3 11.Qf3 Bg4-/+; 9.Ng5 Nf5 10.h4 Be7=) 9...0-0 10.Nc3 (10.cd5 Nd5=) 10...a5 (10...Be5=) 11.b5 Qe8 (11...Be5 12.Rb1=) 12.bc6+= bc6 13.cd5 cd5 14.Ndb5 Qf7 15.Qd2 Ra6 16.Rc1 Bd7 17.h3 (17.Rc2 Qf5+=) 17...Rb6 18.Nd6 (18.Ne4 de4 19.Bc4 Be6 (19...Rb5 20.Bf7 Rf7 21.Qd6 Rb2 22.0-0+/–) 20.Nd6 Rd6 21.Qd6 Qf2 (21...Bc4?! 22.Qf4-/+) 22.Kd1 Bc4 23.Rc4 Qb2 24.Qe6 Rf7 25.Qe4 Qa3–+) 18...Rd6= 19.Nd1 Nbc6 20.Nc3 Rg6 21.Na4 Nf5 22.Nc5 Nh4 23.Rh2 (worse is 23.Nd7 Qd7 24.Kd1 Ng2+=) 23...d4 (23...Rg5 24.Rc2= (worse is 24.Nd7 Qd7 25.Kd1 Qd6-/+)) 24.Nd7?? (better is 24.ed4 e3 25.Qe3=) 24...Qd7+= 25.ed4 Qd6 26.Rh1 Ng2 27.Bg2 Rg2 28.Rf1 Ne7 29.Qe2 Qe6 30.Rc5 Ng6 31.Bc1 (31.Ra5 Nf4 32.Qb5 Nd3 33.Kd1 Qh3 (33...Nf2 34.Rf2 Rgf2 35.Qd5 Qd5 36.Rd5 Rb2 37.Ke1–+) 34.Qd5 Kh8–+) 31...Nh4 32.Be3 Rh2 33.Rc3 (33.Qc4 Qc4 34.Rc4 Ng2 35.Ke2 Rh3-/+) 33...Nf3–+ 34.Kd1 Rh3 35.Kc1 (35.Qc4!? Qc4 36.Rc4-/+) 35...Rh5–+ 36.Qc2 Rb5 37.Rd1 Rfb8 38.d5 Qe5 39.Rc8 Kf7 40.Rc7 Kg6 41.Rc6? (41.Qc6 Kh5 42.Rh1 Nh4 43.Kd1 Rd5 44.Ke2–+) 41...Kf5 42.Qa2 R8b7 (42...R8b7 43.a4 Rb2–+) 0–1. Woschkat,Karl_Heinz – Blankenberg,Bruno, CiF, 2000.

    7.de5 Be5 8.Be5 fe5 A) 9.cd5 cd5 (9...Qd5 10.Nc3 Qe6 11.Ne4 Nd5 12.Bc4 Nd7+=) 10.Qh5 Ng6 11.Bd3 e4 12.Bb5 Nc6+=; B) 9.Qh5 Ng6 10.cd5 cd5= 11.Bd3 e4 12.Bb5 Nc6+=.

    7.Qh5 g6 8.Qd1 Be6 (8...0-0 9.de5 fe5 10.c5=) 9.Nd2 (9.de5 fe5 10.c5 Bc7=) 9...Nf5 (9...e4 10.cd5 Bd5 11.Nc4=) 10.Qb3 (10.de5!? fe5 11.e4+=) 10...ed4+= 11.ed4 Qc7 (11...0-0 12.c5 Bc7 13.Ngf3+=) 12.Ngf3= Nd7 (12...dc4 13.Bc4 Bc4 14.Nc4 Qe7 15.Kf1+=) 13.Rc1 (13.Bd3 0-0-0=) 13...0-0 14.Bd3 dc4 (14...Rfe8 15.0-0=) 15.Bc4 Bc4 16.Qc4 Kg7 17.0-0 Nb6 18.Qb3 Qf7 19.Qc2 (19.Rfe1 Rae8=) 19...Rfe8 20.Rfe1 Re1 (20...Nd5 21.Qa4=) 21.Re1 Re8 22.Re8 Qe8 23.Ne4 h5 (23...Qe7 24.g4 (worse is 24.Nd6 Qd6 25.Qd3 Qf4=) 24...Nh6 25.g5+/– (25.Nd6?! Qd6 26.g5 Ng8=)) 24.g3 (24.Nd6 Nd6 25.Qc5 Qe2+=) 24...Bf8 (24...Qf7 25.Nc5=) 25.Qd3 (25.Nc5 Qf7=) 25...Nd6 26.Nc5 (26.Nc3 Qe6 27.Bc1 Qf5 28.Qf5 Nf5=) 26...Nd5 27.Kg2 (27.Qc2 b6 28.Nd3 Qd7=) 27...g5 (27...b6 28.Nb3+=) 28.Nd2= f5 (28...g4 29.Nc4 Nc4 30.Qc4=) 29.Nf3 g4 30.Ne5 h4 31.Qd2 (31.Bc1 b6 32.Ncd7 hg3 33.fg3 Ne4+=) 31...Kh7 32.Bc1 (32.gh4 Bh6 33.Qc2 Qh5=) 32...b6 (32...hg3!? 33.hg3 Bg7=) 33.Ncd7+= h3 (33...Ne4 34.Qc2 c5 35.Qc4 h3 36.Kg1+/–) 34.Kf1 Ne4 (34...Bg7 35.Qc2 Qc8 36.Qc6 Qc6 37.Nc6+/–) 35.Qc2+/– (35.Nf8 Qf8 36.Qd3 Qe8+/–) 35...c5 36.Qc4 Ndf6 (36...Nc7 37.Nf8 Qf8 38.dc5 bc5 39.Ng4+/–) 37.Nf8 Qf8 38.Qe6 Kg7 (38...cb4 39.Qf5 Kg8 40.ab4+–) 39.bc5 (39.Qf5 Qe8 40.Bg5 Qh5 41.Bf6 Nf6 42.Qh5 Nh5 43.bc5 bc5 44.dc5 Nf6+–) 39...bc5 40.d5?? (40.Qf5!? Qe8 41.dc5 a6+–) 40...Nd6 (40...Qg8 41.Qe7 Kh8 42.Nf7 Kh7 43.Nh6 Qg7 44.Qe6+=) 41.Bb2 (41.Be3 c4+–) 41...Kh7+/– 42.Nd7 (42.f3 a6+/–) 42...Nd7 43.Qd7 Kg6 44.Qe6 (44.Qc6 Qe7+/–) 44...Kh5+= 45.Bc1 Ne4 46.Qd7 (46.Be3 c4+/–) 46...Kg6+= 47.Bf4 Qf6 48.Qc6 (48.Qe8 Qf7 49.Qc6 Qf6+/–) 48...Kf7= Black gets the initiative 49.Qc7 Ke8 50.Qb8 (50.Qc8 Kf7 51.Qb7 Kg6=) 50...Kf7 51.Be5 (51.Qb7 Kg6 52.Qc6 Kh7 53.Qc7 Qg7+–) 51...Qb6 52.Qb6 ab6 53.f4 (53.Ke2!?-/+) 53...gf3–+ 54.a4 (54.Bb2 Nf6 55.d6 Ne4–+) 54...Nf6 55.d6 (55.Ba1 Ng4 56.Kg1 Nh2–+) 55...Ke6 (55...Ng4 56.Bf4–+) 56.Bf4 Ng4 57.Kg1 Kd7 58.Kh1 (58.Bg5–+) 58...f2 0–1. Frech,Josef – Schuett,Wilhelm, Velden op, 1995.

    6.de5 fe5

    7.c4 dc4 8.Bc4 Nd7+=.

    7.c4 c6 8.cd5 cd5 9.Nf3 Bg4 10.Be2 (10.h3 Bf3+= 11.Qf3=) 10...e4 11.Ng5 +/–.

    7.Nf3 Nbc6 8.b5 Nb8 9.Be5 Be5 10.Ne5 0-0 11.c4 Nf5? 12.Qc2?? Qf6= 13.f4? Nd7 14.Nc3 Ne5–+ 15.Nd5? Qh4 16.g3?? Ng3! 17.hg3 Nf3 18.Kf2 Qh1 19.Bg2 Qh2 20.Rh1+/– Qh1?? 21.Bh1+– Bf5 22.Qe2 Rae8 23.Bf3 c6 24.bc6 bc6 25.Nb4 c5 26.Nd5 h6 27.e4 Bd7 28.Qb2 Ba4 29.e5 Kh8 30.Nc7 Rd8 31.Ne6 Rfe8 32.Nd8 Rd8 33.Bd5 Be8 34.Qb1 Bh5 35.Qf5 Be8 36.Qf8 Kh7 37.Be4 g6 38.Qe7 Kg8 39.Qd8 Kf8 40.Bg6 Kg8 41.Qe8 Kg7 42.Qf7 Kh8 43.Qf8 1–0. slavisa99 – powerm, Live Game Caissa's Web, 2004.

    7.Nf3 Nd7 8.Be2 (8.c4 c6+=) 8...0-0 9.0-0 c6 10.c4 e4 11.Nd4 Ne5 12.cd5 Nd5 13.Nc3 Nc3 14.Bc3 Qh4 15.g3 (15.h3!? Qg5 16.Kh1=) 15...Qh6+= 16.Rc1 Bh3 17.Re1 (better is 17.Qb3!? Kh8 18.Rfd1-/+) 17...Qf6–+ 18.f4? (better is 18.Rf1–+) 18...ef3 19.Nf3 Nf3 20.Bf3 Qf3 21.Qf3 Rf3 22.e4 a5! 23.e5 (23.ba5 Bc5 Double attack (23...Ba3 Pinning; 23...Ba3 Deflection)) 23...Be7 24.e6 (24.Red1 Rd8 25.Rd8 Bd8–+) 24...ab4 (better is 24...Bg5 25.e7 Bc1 26.Rc1–+) 25.Bb4 Bb4 (25...Re8 26.Be7 Re7 27.a4–+) 26.ab4 Re8 27.e7 Rf7 28.Rcd1 Rfe7 29.Re7 Re7 30.Rd8 Kf7 31.Kf2 Be6 (31...Re4 32.b5–+) 32.Rd4 Bd5 33.Rf4 Kg6 34.Rg4 Kf7 35.Rf4 Ke8 36.Rh4 h6 37.h3 Re4 (better is 37...Kd7 38.Rf4–+) 38.Rh5 (38.Re4 Be4 39.Ke3–+) 38...Rb4 39.Re5 Kd7 40.Re3 Rb2 41.Ke1 b5 42.Kd1 b4 43.Kc1 Rh2 44.h4 (44.Rd3 Rh3 45.Rd4 b3–+) 44...b3 45.Re1 (45.Rd3 b2 46.Kb1 Kc7 47.Rd5 cd5 48.Ka2 d4 49.Kb3 b1Q 50.Kc4 Qc2 51.Kd5 Re2 52.h5 Re4 53.g4 Qc6) 45...Rh1 (45...b2 46.Kb1 Bg8 47.Rd1 Kc8 48.Rd4 Bh7 49.Rd3 Bd3 50.Ka2 b1Q 51.Ka3 Ra2) 46.Rh1 Bh1 47.Kb2 Bd5 48.g4 Ke6 49.g5 hg5 50.hg5 Kf5 (50...Kf5 51.Kb1 Kg5–+) 0–1. Gremy,Paul (1670) – Reed,John (2020), Pornic op, 2008.

    7.Nf3 e4!? 8.Ng5 Nf5=.

    5.Be2 Ne7

    6.c4 c6 7.Nf3 0-0 8.Nc3 Be6 9.c5 Bc7 10.0-0 (10.d4 e4 11.Nd2 f5=) 10...Nd7 (better is 10...d4!? 11.ed4 ed4-/+) 11.d4= e4 12.Nd2 Nf5 13.a4 White prepares the advance b5 13...Qe7 14.b5 Rae8 15.a5 Nb8 (15...Qd8 16.b6 Bb8 17.Kh1+=) 16.a6 (better is 16.b6!? ab6 17.ab6+–) 16...ba6+= 17.bc6 Nc6 18.Ba6 (18.Qa4 Qd7+=) 18...Bb8 19.Bb5 Qc7 20.g3 Rd8 21.Ra6 Nfe7 22.Qa4 Bd7 23.Nd5! Nd5 24.Bc6 Bc6 25.Qc6 Qc6 26.Rc6 Nb4 27.Re6 f5 28.Re7 Rf7 29.Rf7 Kf7 30.Nc4 (30.f3 ef3 31.Rf3 Kg6+/–) 30...Bc7 31.Ra1 Bb8 32.Bc3 Nd3 33.Rb1 g5 Black intends f4 34.Rb7 Kg6 (34...Ke6 35.Na5 Rc8 36.Rh7+–) 35.Na5 (35.c6 Rc8 36.d5 h6+–) 35...Rc8 36.Rd7 (36.c6 h6+–) 36...f4 37.ef4 gf4 38.Re7 Kf5 (38...Nc5 39.dc5 Rc5 40.Be1+–) 39.Nc4 (39.Rh7 Nc1 40.Kf1 Nd3+–) 39...Nc5 (better is 39...h6+/–) 40.Ne5?? (better is 40.dc5 Rc5 41.g4 Kg4 42.Re4+–) 40...Na4 (40...Nd3 41.Bd2 Be5 42.de5 fg3 43.hg3-/+) 41.Rf7 (better is 41.Bd2!? fg3 42.hg3+=) 41...Ke6+= 42.d5?? (better is 42.Bb4 Be5 43.Re7 Kd5 44.Re5 Kd4 45.gf4+=) 42...Kd5–+ 0–1. Djurisic,Dusan (1930) – Bjelanovic,Mile (1915), Kup Beograda, 2016.

    6.Bh5 g6 7.Be2 0-0 8.d3 Be6 9.Nf3 Nd7 10.Nbd2 a5 11.b5 c5 12.c4 d4 13.e4 b6 14.h3 Ra7 15.Nf1 Kh8 16.g4 f5 17.Ng5 Bg8 18.Ng3 f4 19.Nf1 Nc8 20.h4 Be7 21.Nf3 Nd6 22.Qc2 Nf6?? (better 22...Be6!? 23.h5 g5-/+) 23.N1h2?? (23.Ne5 Rb7+-) 23...Be6?? (23...Nd7 24.Nf1 Be6-/+) 24.Ng5?? (24.Ne5 Bd7 25.h5+/-) 24...Bc8 25.f3? (better 25.Ngf3 Nf7 26.g5=+) 25...Ng8 26.0-0-0 Bg5 27.hg5 Qg5 28.Kb1 Kg7 29.Nf1 Kf7?? (29...a4 30.Qd2-+) 30.Nd2 (better 30.Rh7 Ke6 31.Ra7+-) 30...Ke8 31.Nb3 Kd8 32.Rh2 Qe7 33.Rdh1 Nf6 34.Qd1 Be6 35.Nd2 h5 36.gh5 gh5 37.Rh4 Rg8 38.Bf1 Qh7 39.Bh3 Bh3 40.R1h3 Rag7 41.Rh1 Rg2 42.Bc1 R8g3 43.Nf1 Rg5 44.Bd2 Qg6 45.Be1 Rg1 46.Nd2? (better 46.R4h2-+) 46...Rh1 47.Rh1 Rg1 48.Rh2 Kc7 (better 48...Qg3! 49.Re2 Qh3 50.Kc2-+) 49.Qe2 Qg3 50.Nf1?? (50.Rf2-+) 50...Rf1! 51.Qf1 Qh2 52.Bf2 (52.Qf2 Qf2 53.Bf2 Nf7-+) 52...h4 53.Kc1 (53.a4 h3-+) 53...h3 54.Kd1 Qg2 55.Ke1 (55.Qg2 hg2 56.Ke2 Nh7-+) 55...Qf1 (55...Qf3 56.Bg1 Qh5 57.Qf2-+) 56.Kf1 Nh5 57.Kg1 Ng3 58.Kh2 Nf1 (better 58...Ne2 59.Bh4-+) 59.Kh3 Nd2 60.Kg4 Nb1 61.Kg5 (61.a4 Nc3 62.Bh4 Na4-+) 61...Na3 62.Kf6 Nb1 63.Ke7 Nc3 (better 63...a4!? 64.Ke6-+) 64.Bh4 Nd1 65.Bf6 Ne3 (better 65...Nc8 66.Kf7 a4 67.Be5 Kb7 68.Bf4-+) 66.Be5 Kc8 (better 66...a4 67.Bf4 a3 68.Bd6 Kc8 69.Bc5 bc5 70.Kd6-+) 67.Bd6 Nc2 (67...a4 68.Bf4 a3 69.Kd6-+) 68.Ke8?? (better 68.e5 Ne3 69.Kf6 Ng4 70.Kg6= (70.fg4?? f3-+)) 68...a4-+ 69.Bc5 a3 (better 69...bc5 70.e5 Ne3 71.Kf7-+) 70.Bb6 (70.Ba3 Na3 71.Ke7-+) 70...a2 71.Bd4 a1Q (71...Nd4 72.Kf7 a1Q-+) 72.Ba1+- Na1 73.e5 Nb3 74.d4 (better 74.e6 Nc5 75.e7+-) 74...Nc5 (better 74...Nd4 75.e6 Nf3-+) 75.d5 (75.d5 Nd7 76.e6 Nc5 77.Kf8 Kc7 78.e7 Kb6 79.e8Q Nb3 80.d6 Ka5 81.d7 Kb4 82.d8Q Nc5 83.Qe1 Kb3 84.Qda5 Kc4 85.Qec3 Kd5 86.Ke7 Ne4 87.Qa2; 75.dc5 Kc7 76.e6 Kc8 77.e7 Kc7 78.Kf7 Kd7 79.e8Q Kc7 80.b6 Kb7 81.Ke6 Ka6 82.Qa8) 1-0. azer3136 (2240) - mehdi58 (2270), Rated Blitz game, lichess.org, 2016.

    6.Bh5 g6 7.Be2 0-0 8.Nf3 a5 9.b5 c5 10.d3 Be6 11.Nbd2 Nd7 12.c4 d4 13.e4 b6 14.h3 Ra7 15.g4 Kh8 16.Nf1 f5 17.gf5 gf5 18.Ng5 Bg8 19.Ng3 f4 20.Nh5 Ng6 21.Bg4?? (21.Rg1 Be7 22.Nf3 Nf6=+) 21...Nf6 (better 21...Qg5 22.Rg1 Nf6 23.Nf6 Qf6-+) 22.Nf6 Qf6 23.Nf3 Nh4 24.Qe2 Rg7 25.0-0-0 Nf3 26.Qf3 Be6 27.Rdg1 Rfg8 28.Kc2 Be7 29.Bc1 Qh6 30.Bd2 Bh4 31.Rg2 Qf6 32.Rhg1 Bg5 33.Be1 Bh6 34.Qe2 f3 35.Bf3 Bh3 36.Rg7 Rg7 37.Rg7 Qg7 (worse 37...Bg7 38.Bg4 Bg4 39.Qg4+=) 38.Bh5 Qg5 39.Bd2? (better 39.Kb2=+) 39...Qd2-+ 40.Qd2 Bd2 41.Kd2 Kg7 42.Ke2 Kf6 43.f3?? (better 43.Ke1-+) 43...Kg5 44.Be8 h5 45.Kf2 h4 46.Bf7 Kf4 47.Bh5 (47.Bd5-+) 47...Kg5 (47...Be6 48.Ke2 h3-+) 48.Be8?? (48.Bf7 Bc8 49.Kg2 Kf4-+) 48...Kf4 49.a4?? (49.Bh5 Be6 50.Bg6-+) 49...Kg5 (better 49...Be6 50.Bc6 Bc4-+) 50.Bf7 Kf4 51.Be8 Kg5 (better 51...Be6 52.Bc6 Bc4-+) 52.Kg1?? (52.Bf7 Bc8 53.Bg8-+) 52...Kf4 (better 52...Be6 53.Bc6 Bf7-+) 53.Kf2= ½-½. azer3136 (2240) - mehdi58 (2270), Rated Blitz game, lichess.org, 2016.

    5.Nf3

    5.Nf3 (--> 1.b4 e5 2.a3 d5 3.Bb2 Bd6 4.Nf3 f6 5.e3).

    5.Nf3 Be6 (--> 4.e3 Be6 5.Nf3 Bd6).

    5.Qh5 g6

    6.Qd1 Ne7 7.c4 c6 8.Nc3 Be6 9.cd5 Nd5 10.Nge2 f5 11.Nd5 cd5 12.Nf4 Bf7 13.Bb5 Nc6 14.Qa4 (14.Nd3!? Qe7 15.Bc6 bc6 16.f4+/–) 14...0-0= 15.Bc6 bc6 16.Ne2 (16.Nd3 d4 17.Qc6=) 16...c5 (better is 16...a5 17.ba5 c5+=) 17.bc5+/– Bc7 18.0-0 f4? (better is 18...Be8 19.Qc2 Bb5+/–) 19.ef4+– Be8 20.Qc2 d4 (20...Bb5 21.d3 Qe7 22.fe5 Be5 23.Be5 Qe5 24.a4+–) 21.d3 (21.fe5 d3 22.Qc4 Bf7+–) 21...ef4 (21...Qd5 22.fe5 Bc6 23.Qc4 Qc4 24.dc4+–) 22.Nd4 (22.Bd4?! f3 23.gf3 Qh4+/–) 22...f3 23.Ne6 Qh4?? 24.Nc7+– Rf4 25.Qc3 (25.Qc3 Qf6 26.Qf6 Rf6 27.Bf6+–; 25.Na8?? Qg4 26.g3 Qh3 27.Qb3 Rf7 28.Qf7 Kf7 29.Rfc1 Qg2) 1–0. Fabus,Marian (1815) – Bartek,Ladislav (2140), SVK–chT2C, 2005.

    6.Qd1 Ne7 7.Nf3 0-0 8.Be2 Bg4 9.0-0= Nd7 10.d3 c6 11.Nbd2 Rc8 12.c4 dc4 13.dc4+= c5 14.b5 b6 15.Ne4 Bb8 16.a4 (16.a4 Qc7 17.h3+=; 16.Qd2 Qc7+=). Onkel_Luis (1705) – crisptoast, ICC, 2003.

    6.Qh4 a5 7.b5 Nd7 8.c4 Ne7 9.cd5 Nd5 10.Nh3 Nc5 11.Bc4 Nb6 12.Be2 Nb3 13.Ra2 Be6 14.Bc3 (better is 14.Nc3!?+=) 14...Nd4!-/+ 15.Rb2 (15.Qd4 ed4) 15...Ne2 16.Ke2 Nc4 17.Rc2 Na3 18.Na3 Ba3 19.Ra1 Bb3 20.Ra3 Bc2 21.Qc4 (21.Ba5 g5 22.Qh5 Bg6–+) 21...a4 (21...Bf5 22.g4 Qd6 23.Ra5 Ra5 24.Ba5–+) 22.Be5 Bb3 23.Rb3 ab3 (23...fe5?! 24.Ra3-/+) 24.Bc7 Qd7 25.Qe4 Kf7 26.Qc4 (26.b6 b2 27.Qb4 Ra2–+) 26...Qe6 (26...Qe6 27.Qe6 Ke6 28.Nf4 Kd7–+) 0–1. Bendig,Frank – Trokenheim,Marek, corr SOK–92–1992.

    4.e3 Bd7

    5.b5 a6 6.a4 (6.ba6 Na6 7.d4 ed4 8.Bd4 c5=) 6...ab5=+ 7.ab5 Ra1 8.Ba1 Qe7 (8...Bd6 9.Be2=+) 9.Nc3 Qc5 10.Na4 (10.Nf3 Bd6=) 10...Qa3 (10...Qd6 11.Nf3=+) 11.Nc3= d4 (11...Ne7 12.Nf3=) 12.ed4 ed4 13.Nd5 Qc5 14.Qe2 Ne7 15.Ne7 Be7 16.Nf3 Qc2 17.Nd4 Qc1 18.Qd1 Qd1 19.Kd1 Bc5 20.Bd3 0-0 21.Re1 c6 22.bc6 bc6 23.f3 Na6?? 24.Be4 Rb8? 25.Nc6+/– Rb1?? 26.Ke2 Re1+/– 27.Ke1 f5 28.Bd5+– Kf8 29.Nd4 Nb4+/– 30.Bc3?? Bd4?? 31.Bb4+/– Ke8 32.Bb3 g5 33.h3 h5 34.Bd1 Bb5 35.Bc3 Bg1 36.Bf6 g4 37.fg4+– fg4 38.hg4 h4 39.Bh4 Bc6 40.Kf1 Bd4 41.Bf3 Bb5 42.Ke1 Be5 43.Be2 Bd7 44.d3 Kf7 45.Kd2 Ke6 46.Ke3 Kd5 47.Bf3 Kc5 48.Ke4 Bd4 49.Be7 Kc6 50.Kd4 1–0. Kone – cheeze06, Live Game Caissa's Web, 2004.

    5.c4 a5!?=.

    5.c4 dc4 6.Bc4 b5 7.Ba2 Bd6 (7...Nc6 8.Nf3+/–) 8.Nf3+– Ne7 (8...a5 9.Ne5! Be5 10.Be5 ab4 11.Bd4+–) 9.Nc3 c5? (better is 9...Nbc6 10.Nb5 e4+–) 10.bc5 Bc5 11.Qb3 Rf8 12.d4 ed4 13.ed4 Bd6 14.0-0 Nbc6 (14...Qb6 15.Rfe1 Kd8 16.Ne4+–) 15.Nb5 Bb8 (15...Qb8 16.Rfe1 Kd8 17.Bc3+–) 16.Rfe1 a6 17.Nc3 Na5 (17...Bd6 18.Ne4 Qc7 19.d5+–) 18.Qc2 Bf5 (18...Bd6 19.Nd5 Rh8 20.Ne7 Be7 21.Re7 Qe7+–) 19.Qf5 1–0. pierred – anony, internet, 2014.

    5.c4 Bc6 6.b5+/– Bd7 7.cd5 a6 8.a4 (8.d4 e4+/–) 8...ab5+= 9.ab5 (worse is 9.Bb5 Bb5 10.ab5 Ra1 11.Ba1 Qd5+=) 9...Ra1 10.Ba1 c6 11.dc6 bc6 12.Nc3 Qa5 13.Qb1 Bb4 14.Nf3 (14.bc6 Nc6 15.Bc4 Nge7+/–) 14...Ne7 (14...cb5 15.Bd3+=) 15.Bc4 (15.bc6 Nbc6 16.Bb2+=) 15...c5? (better is 15...cb5!? 16.Bd3 Na6=) 16.0-0+/– Bf5 (16...Nc8 17.Ne5 fe5 18.Qe4+–) 17.Qb3 Nd7 18.Bf7 Kd8 19.e4 (19.Bb2 Qb6+–) 19...Bg6 (19...Bg4 20.Nh4 Nb6 21.Bb2+–) 20.Be6 Nb6 21.Nd5?? (better is 21.Bb2 Qa8 22.Ra1+–) 21...Ned5 22.ed5 (22.Bd5 Qb5 23.d4 ed4 24.Bd4 Qa4+= (24...cd4 25.Nd4 Qa4 26.Nc6 Kd7 27.Qb4 Qb4 28.Nb4=)) 22...Qb5 23.Bc3 Ke7 (23...Be4!?+=) 24.Ra1= Ra8 (better is 24...Rd8!?=) 25.Ra8+/– Na8 26.h3?? (26.d4 Qa5 27.d6 Kf8 28.h3+–) 26...Nc7+= 27.Qa2 (27.d6 Kd6 28.Bc4 Qa5+=) 27...Qa6 (27...Ne6 28.de6 Bc3 29.Qa7 Ke6 30.dc3-/+) 28.Qb3 (better is 28.Qa6 Na6 29.Nh4-/+) 28...Qb5 29.Qa2 Qa6 30.Qb3 Ne6 (30...Bc3 31.dc3 Ne6 32.de6–+) 31.de6 (31.Bb4!? cb4 32.Qb4 Qd6 33.Qd6 Kd6 34.de6-/+) 31...Qe6–+ 32.Qa4 Qc4 33.Qa7 Kf8 34.Qb8 Be8 0–1. GuestMWTL – GuestZBPT, freechess.org, 2017.

    5.c4 d4 6.ed4+/– ed4 7.Bd4 Qe7 (7...Nh6 8.Qh5 g6 9.Qe2 Kf7 10.Be3+/–) 8.Be3 Nc6 9.d4 Nd8 (9...Nh6 10.b5 Nd8 11.Nc3+/–) 10.Nc3+– Ne6 11.Bd3 Nf4 (11...a5 12.b5+–) 12.Be4 f5 (12...c6 13.Bf4 f5 14.Qe2 fe4 15.Ne4+–) 13.Bb7 Rb8 14.Bf3 Nf6 15.Nge2 Ne2 (15...Ng6 16.0-0+–) 16.Qe2 (16.Ke2?! f4 17.Re1 fe3=) 16...Ne4 (16...a5 17.ba5 c6 18.0-0+–) 17.Nd5 (17.Nd5 Qh4 18.Nc7 Kd8 19.Nd5+–) 1–0. Wall,Bill – Aiandas, internet, 1999.

    5.Nf3 a5 6.b5=.

    5.Nf3 b5 6.Ne5+= fe5 7.Qh5 Ke7 8.Qe5 Be6 9.Bb5 c6 (9...Nf6 10.0-0=) 10.Bd3 (10.Ba4 Kf7+=) 10...Qd6 (10...Nf6 11.Bf5 Qd6 12.Qd6 Kd6 13.Bd3=) 11.Qg5+= Kf7?? (better is 11...Nf6+=) 12.Be5+– Qe7 (12...Qd7 13.Bb8 Bb4 14.Be5+–) 13.Qf4 Nf6 14.Bb8 1–0. Wall,Bill – Small K, internet, 2001.

    5.Nf3 c5 6.bc5+= Bc5 7.d4 ed4 8.Bd4 Bd4 9.Nd4 Qa5 10.Nd2 Ne7 11.c4 0-0 12.cd5 Nd5 (better is 12...Rc8!?+/–) 13.Bc4+– Bc6 14.e4 Re8 (14...Kh8 15.Nc6 bc6 16.ed5 cd5 17.Be2+–) 15.0-0 Qc5 (15...Re5 16.f4 (16.Bd5?! Bd5 17.ed5 Qd5+–) 16...Re8 17.ed5+– (17.Bd5?! Bd5 18.ed5 Qd5+–)) 16.Nc6 (16.Bd5?! Bd5 17.N2b3 Bb3 18.Qb3 Kf8 19.Qb7 Qd4 20.Qa8 Qe4 21.Qa7 Nc6 22.Qc5 Kg8+–; worse is 16.ed5 Bd5 17.Qb3 Bc4 18.Nc4 Kh8+–) 16...bc6 17.ed5 cd5 18.Ne4! Re4 (18...Qc4 19.Nd6 Qc6 20.Ne8 Na6+–) 19.Qd5 Qd5 20.Bd5 Kf8 21.Be4 (21.Be4 Nc6 22.Bc6+–) 1–0. pcmvr (1700) – cindya, net–chess.com, 2006.

    5.f4 Nc6 6.Nh3 Bh3 7.Qh5+= g6 8.Qh3 ef4 9.ef4 Nce7 10.Qe6 Qd6 11.Bb5+– Kd8 12.Qf7 Nc6 13.Bc6 bc6+= 14.0-0 Nh6?? 15.Qf6+– Qf6 16.Bf6 Kd7 17.Bh8 Nf5 18.Be5 Re8 19.c3 Kc8 20.a4 Bd6 21.Bd6 cd6 22.Kf2 Kd7 23.Na3 a6 24.Rae1 Rf8 25.g3 h5 26.Nc2 c5 27.Ne3 Ne7 28.b5 a5 29.b6 Kc6 30.Rb1 Kb7 31.Rb5 Nc8 32.Nd5 Rf5 33.c4 Rd5 34.cd5 Nb6 35.Rfb1 (35.Rfb1 Kc7 36.Rb6 Kd7 37.Rb8 Ke7 38.R1b7 Kf6 39.Rf8#) 1–0. euforia (1605) – tiberius, internet, 2007.

    5.h3 Be6 6.d4 Nd7 7.Nf3 =.

    5.h3 Nh6 6.Nf3 (6.d4 ed4 7.Bd4 Nc6+=) 6...e4 (6...Nf5=) 7.Nh4 (7.Nd4 Nf5+=) 7...Nc6 (better is 7...g5-/+) 8.Qh5+= Nf7 9.Qd5 Qe7 10.b5 Na5 (10...Ncd8!? 11.Nc3 Nd6+=) 11.Bc3 c6 12.bc6 (12.Qd4!? c5 13.Qd5+/–) 12...Nc6+= 13.Bb5 (13.d3 Nd6 14.de4 Be6 15.Qh5 Bf7=) 13...Qe6 (13...Nd6 14.f4=) 14.Qh5 (better is 14.Bc4 Qd5 15.Bd5=) 14...g6 15.Ng6 hg6 16.Qg6 Nce5 (better is 16...Rh6!? 17.Qg3 Qf5–+) 17.Bd7-/+ Kd7 (better is 17...Nd7!? 18.d3 ed3 19.cd3 Nc5-/+) 18.Qe4+= Nd6 19.Qa4 Kc7 20.Be5 (20.d3 Rg8 21.Rh2 Kb8+=) 20...Qe5 21.Nc3 b6 22.Rb1 Kb7 23.0-0 (better is 23.Qd7!? Kb8 24.Rb3+=) 23...Be7?? (better is 23...Rc8=) 24.Qd7+– 1–0. PoPer – santaclaus2004, Live Game Caissa's Web, 2004.

    5.Qh5 g6 6.Qd1 Bd6 7.g3 Ne7 8.Bg2 0-0 9.f3 Bc6 10.Nc3=+ d4 11.ed4 ed4 12.Ne4 Be4 13.fe4 Be5 14.Nf3 a6 15.Ne5 fe5= 16.c3 Nbc6 17.Rf1 Qd6 18.Qb3 Kg7 19.0-0-0 b5 20.d3 Nc8?? 21.cd4 Nd4= 22.Bd4 Qd4 23.Rf8 Kf8?? 24.Rf1+– Ke7 25.Qf7 Kd8 26.Qf6 Kd7 27.Bh3 Ke8 28.Qf8# 1–0. Rob – Charlemagne, internet, 2007.

    5.c4 Ne7

    6.cd5 Nd5 7.Nc3 Nc3 8.dc3 Be7 9.Nf3 c6 10.Be2 b5 11.c4 a5 12.cb5 ab4 13.a4 c5 (13...cb5!? 14.ab5 Ra1 15.Qa1 Qb6=) 14.Bc4 Bf5 15.0-0 (15.Nh4 Qd1 16.Kd1 Bg4 17.Kd2 Ra5+=) 15...Nd7 (15...Qd1!? 16.Rfd1 Bc2+=) 16.Qd5 Rf8 17.Nh4 (better is 17.Bd3 Bd3 18.Qd3+=) 17...Bc2?? (17...Nb6 18.Qd8 Rd8 19.Be2=) 18.e4?? (better is 18.Rfc1 Bg6 19.Ng6 hg6 20.Rd1+–) 18...Nb6?? a4 seems the pivot of the position (better is 18...g6=) 19.Qd8?? (better is 19.Qc6 Qd7 20.Qb6 Be4 21.Rad1+–) 19...Rd8-/+ 20.Be6 Na4 (20...Ba4!? 21.Nf5 Rh8-/+) 21.Nf5+= Rf7 (21...Rh8 A) worse is 22.Ng7 Kf8 23.Rfc1 Be4 (23...Kg7?! 24.Rc2 Nb2 25.Rb2+=) 24.Ra4 Kg7-/+; B) 22.Bc1 g6 23.Ng7 Kf8 24.Bh6=) 22.Bf7?? (better is 22.Rfc1 Rd2 23.Ra2 (23.Bf7 Kf7 24.Rc2 Rc2 25.Ra4 Rb2-/+) 23...Be4 24.Ra4 Bf5 25.Bf5+=) 22...Kf7-/+ 23.Bc1 Nc3 (23...Ra8 24.f4 Be4 25.Ne7 Ke7 26.fe5=) 24.Ne7 (better is 24.Ra7 Be4 25.Re7 Kf8 26.Be3 Ne2 27.Kh1+=) 24...Ke7-/+ 25.Be3 Nb5 (better is 25...Ne2 26.Kh1 Nd4 27.Ra7 Rd7-/+) 26.Bc5= Nd6 (better is 26...Kf7!? 27.Bb4 Be4=) 27.Bb4+/– Be4 28.f3 Bd3?? (better is 28...Bd5+/–) 29.Rfd1+– Bc4 30.Bd6 (better is 30.Rd6 Rd6 31.Rd1+–) 30...Rd6 31.Rd6 Kd6 32.Ra7 g5 33.Rh7 Ke6 34.Ra7 Bd5 35.Kf2 e4 36.fe4 Be4 37.g3 f5 38.Ke3 Bg2? (38...g4 39.Rg7 Bc2 40.Kf4+–) 39.Ra6 (39.h4!? f4 40.Kf2 Bd5+–) 39...Ke5 40.Ra5 Kf6 41.Ra6 Ke5 42.h4 gh4 43.gh4 Bf1 44.Rh6 f4?! (44...Bg2+–) 45.Kf3 Bd3 46.Rh8 (better is 46.Rh5!? Kf6+–) 46...Bg6 47.h5 Bf7 48.h6 Bg6 (48...Bh5 49.Kf2 Kf6 50.Rg8+–) 49.Rf8 (49.h7 Be4 50.Ke2 Bh7 51.Rh7 Ke4+–) 49...Bh7 (49...Be4 50.Kg4 f3+–) 50.Rf4 Ke6 51.Kg4 Ke7 52.Kg5 Ke6 53.Rf6 Ke7 54.Rf2 (54.Rg6!? Kf8 55.Rg7 Bd3+–) 54...Ke8 (54...Bd3+–) 55.Kf6 Bc2 (55...Kd7 56.Rg2 Kd6 57.Kg7+–) 56.Kg7 (56.Rc2 Kd7 57.h7 Kd6 58.h8Q Kd5 59.Kf5 Kd6 60.Qd8) 56...Ke7 (56...Bd3 57.Rf6+–) 57.h7 (57.Rc2 Kd7 58.h7 Ke7 59.h8Q Ke6 60.Qh3 Ke5 61.Qe3 Kf5 62.Rf2 Kg4 63.Rf4 Kh5 64.Qe5) 57...Bh7 58.Kh7 Ke6 59.Kg6 Ke5 60.Kg5 Kd4 61.Re2 Kc5 62.Rd2 Kc4 63.Rd8 Kc5 64.Kf5 Kc6 65.Ke5 Kc7 (65...Kb5 66.Kd4 Kc6 67.Rd5 Kb6 68.Rd6 Kb5 69.Re6 Kb4 70.Rb6 Ka5 71.Rb3 Ka4 72.Kc4 Ka5 73.Kc5 Ka6 74.Rb2 Ka7 75.Kc6 Ka8 76.Kc7 Ka7 77.Ra2) 66.Rd2 (66.Rd6 Kb7 67.Kd5 Kc7 68.Kc5 Kb7 69.Rd7 Kc8 70.Kc6 Kb8 71.Rd8 Ka7 72.Re8 Ka6 73.Ra8) 66...Kc6+– 67.Ke6 Kc5 68.Ke5 Kc6 69.Ke6 Kc5 70.Rd1 Kc4 71.Ke5 Kc3 72.Ke4 Kc2 73.Rd3 Kc1 74.Rh3 (74.Kd4 Kb2 75.Kc4 Kc2 76.Rd4 Kb2 77.Rd2 Kc1 78.Kc3 Kb1 79.Rd1 Ka2 80.Rc1 Ka3 81.Ra1) 74...Kc2 75.Kd4 Kd2 76.Rh2 Kc1 (76...Ke1 77.Kd3 Kf1 78.Ke3 Kg1 79.Rf2 Kh1 80.Kf3 Kg1 81.Kg3 Kh1 82.Rf1) 77.Kd3 Kb1 78.Kc3 Ka1 79.Kb3 1–0. Fournier,Frederic (1910) – Vasiukov, Active, 2011.

    6.cd5 Nd5 7.d4 ed4? 8.Qh5+– g6 9.Qd5 Nc6 10.b5 Na5 11.Bd4 Bg7 (11...c6 12.Qe4 Kf7 13.Qd3+–) 12.Bc3 b6 (12...c5 13.Nd2 Qc7+–) 13.Ba5 ba5 (13...Rc8 14.Bc4 Qe7 15.Bb4+–) 14.Bc4 Qe7 (14...Qb8 15.Qf7 Kd8 16.Qg7+–) 15.Qa8 1–0. Eagle_9 (2375) – leighcastle (1705), ChessWorld.net, 2003.

    6.cd5 Nd5 7.d4 Be6 8.de5 Nd7 +/–.

    4.e3 e4

    5.c4 a5!?=.

    5.c4 a6 6.cd5 Qd5 7.Nc3 Qe5 (7...Qe6 8.Qh5 Kd8 9.d3+/–) 8.Bc4 (8.Qc2 Qd6+/–) 8...Nh6 (8...Bf5 9.f3+/–) 9.Qc2 Bf5 (9...f5 10.f3+/–) 10.Nd5 Bd6?? (better is 10...Qd6 11.Ne2 b5+/–) 11.Be5+– (11.Be5 Be5 12.Nc3+–) 1–0. GuestQRZZ – GuestVXHN, freechess.org, 2017.

    5.c4 Be6 6.cd5 Qd5 7.Nc3 Qd8 8.Ne4 Bd5 9.Nc3 Nc6 10.Nd5 Qd5 11.Nf3 0-0-0 12.d4 Re8 13.Qc2 Nh6 14.Bc4 Qd6 (14...Qh5 15.Qa4+–) 15.Rc1 Ne7 (15...Re7 16.0-0+–) 16.0-0 (16.Qa4 c6 17.Qa7 Qb8+–) 16...c6 17.b5 c5 (17...Kd8+–) 18.dc5 Qc5 (18...Qd7 19.Rfd1 Qf5+–) 19.Be6 (19.Be6 Kb8 20.Qc5+–) 1–0. Fournier,Frederic – NETRO, Active, 2008.

    5.c4 Ne7 6.cd5 Nd5= 7.Bc4 (7.d3 Bf5+=) 7...Nb6 8.Ba2 Bd7 (8...Bf5 9.Ne2=) 9.Ne2 (9.Qh5 g6 10.Qh4 Be7 11.Qe4 Bc6+=) 9...Nc6 (9...Ba4 10.Bb3 Bb3 11.Qb3=) 10.Ng3 Ne5? (better 10...Qe7=) 11.Be5+- fe5 (11...Ba4 12.Qe2 Bc2+-) 12.Qh5 g6 13.Qe5 Qe7 14.Qh8 0-0-0 15.Qb2 (15.Nc3 Bf5 16.Nf5 gf5+-) 15...Bg7 16.Nc3 Na4 17.Nd5 (better 17.Qb3 Nc3 18.dc3+-) 17...Qf7 (17...Nb2 18.Ne7 Kb8+-) 18.Qc2 Ba1 (18...Be6 19.Nc7 Ba2 20.Ne6 Bc4 21.Qc4 Kb8+-) 19.Qc7 1-0. Williams,Barry - Al_Hindawi,Ahmed, NZL Wanganui Chess Club Summer Handicap, 2000.

    5.d3 a5 6.de4 de4 7.Qd8 Kd8 8.b5+=.

    5.d3 c5 6.b5 b6 (6...ed3 7.Bd3 Nh6 8.Nf3+=) 7.Nh3 (better is 7.Nc3 Bb7 8.de4 de4 9.Qd8 Kd8 10.Rd1 Kc7 11.Bc4+/–) 7...g5? (better is 7...Qd7 8.de4 de4+/–) 8.Qh5 Kd7? (better is 8...Ke7+–) 9.Qf7 Be7 (9...Kd6 10.de4 Be6 11.Ng5 Bf7 12.Nf7 Kc7 13.Nd8 Kd8 14.ed5 Bd6+–) 10.Qd5 Bd6 (10...Ke8 11.Qa8 Bh3 12.gh3 ed3 13.Bd3+–) 11.Qa8 Qc7 (11...ed3 12.Bd3 h6 13.Qa7 Qc7 14.Bf5 Kd8 15.Qc7 Kc7 16.Bc8 Kc8 17.Nc3+–) 12.Qe4 Bb7 13.Qg4 (13.Qg4 Ke7 14.Ng5+–) 1–0. Janek – Fritzi, internet, 2016.

    5.d3 Bd6 6.de4 de4 7.Nc3 Nc6 (7...Qe7!?+=) 8.Ne4+/– Bf5 9.Nd6 Qd6 10.Qd6 cd6 11.Bd3 Bd3 12.cd3 Nge7 13.Nf3 Ne5 14.Ne5 (14.Ke2 Kd7+–) 14...de5+/– 15.0-0 (15.Kd2 Kd7+/–) 15...h5 (15...Rd8 16.d4 e4 17.f3+/–) 16.Rac1 g5 (16...a5 17.ba5 Ra5 18.f4+/–) 17.Rc7 (17.f4!? gf4 18.ef4 Ng6 19.fe5 fe5 20.Be5 Ne5+–) 17...b6 18.Rfc1 Kf7 19.d4 e4 (19...ed4 20.Bd4 Rhc8 21.Kf1+/–) 20.a4 (20.f3 ef3 21.gf3 Rhc8+–) 20...Rhe8 (20...Ke6 21.b5 Nd5 22.R7c6 Kf5 23.Kf1+/–) 21.Ba3 (21.f3!? f5+–) 21...Kg6+/– 22.Rd7 Nf5 (22...a6 23.Rcc7 Nf5 24.h3+/–) 23.Rcc7 (23.Rc6 Re7 24.Rd5 Ree8+/–) 23...a5+– 24.b5 Rac8 (24...Red8 25.Rd8 Rd8 26.Rc6+–) 25.h3 (25.Rc6 Rc6 26.bc6 Rc8+–) 25...Rg8 (better is 25...Rc7 26.Rc7 Rb8+–) 26.Rc6 Rc6 27.bc6 Ng7 (27...g4 28.hg4 hg4 29.d5+–) 28.c7 Rc8 29.d5 h4 (29...Ne8 30.d6 Kf5+–) 30.d6 (30.d6 Ne6 31.Re7+–) 1–0. Richard,Andy – Wylie,Richard, IECC, 1999.

    5.d3 Nh6 6.Qh5 Nf7 (6...g6 7.Qh4 g5 8.Qh5 Ke7 9.Qd1 ed3 10.Bd3+/–) 7.Nc3 (7.de4 de4 8.Bc4+/–) 7...g6? (better is 7...ed3!? 8.Bd3 Be6+=) 8.Qd5+– ed3 9.Bd3 (better is 9.Qd8 Kd8 10.Bd3+–) 9...Qd5? (better is 9...Nd7+–) 10.Nd5 Ne5 (10...Bd6+–) 11.Be5 (11.Nc7 Kf7 12.Be5 fe5 13.Na8 Bd6+–) 11...Nd7 (11...fe5 12.Nc7 Ke7 13.Na8+–) 12.Nc7 Kd8 13.Bg3 Ne5 (13...Rb8 14.Nf3+–) 14.Na8 Nd3 (14...Bd6 15.Nf3+–) 15.cd3 Be6 16.Nf3 Kd7 17.Rc1 Bd6 18.Nc7 Bg3 19.hg3 Rc8 20.Rh7 Kd6 (20...Bf7 21.Rf7 Kd6 22.Nd4 Rc7 23.Rcc7 a6 24.Rfd7 Ke5 25.Rc5) 21.Nb5 Kd5 22.e4 1–0. Janek – ijmagen, internet, 2017.

    5.d4 Nc6 6.c4+= dc4 7.Bc4 Nge7 8.Qc2 (8.Nc3 f5+–) 8...Bf5 (8...f5!?+=) 9.Nd2 Ng6 (9...a6 10.Ne4 Nd5 11.Nf3+–) 10.0-0-0 (10.Ne2 Qd7+–) 10...a6 (10...Qd7 11.Ne4 a5 12.b5+–) 11.f3 ef3 (better 11...b5!? 12.Bb5! ab5 13.Qc6 Bd7 14.Qe4 Be7+–) 12.Ndf3?? (better 12.Qf5 fg2 13.Qe4 Qe7 14.Qg2 Qe3 15.Ne2+–) 12…Bc2–+ (12...Bc2 13.Kc2 Qd7–+) 0–1. pat_cash87 – ertugrul862, lichess.org, 2020.

    5.d4 Ne7 6.c4 c6 7.c5 b6 8.Qc2 Nd7 9.Nd2 g5 10.0-0-0 (10.Be2 Qc7+=) 10...Ng6 (10...a5 11.ba5 bc5 12.dc5 Qa5 13.Nb3-/+) 11.f3 Bg7 (11...f5 12.b5=+) 12.Ne2 (12.fe4 Ne7+–) 12...Ba6 (12...ef3 13.gf3 a5 14.b5 cb5 15.Nc3=) 13.Nc3 (better 13.fe4!? Ne7 14.h4+–) 13...Bf1= 14.Rdf1 Nh4 (14...ef3 15.Rf3 a5 16.Kd1=) 15.Nb3 (better 15.fe4 bc5 16.bc5+–) 15...Ng2?? (better 15...ef3 16.gf3 f5=) 16.Qg2+– a5 (16...f5 17.Qh3 Qe7 18.b5 ef3 19.bc6+–) 17.fe4 ab4 18.ab4 bc5 19.bc5 Qb8 20.Kc2 (better 20.Nd2 de4 21.Qe4 Kd8 22.Qc6 Ra7+–) 20...0-0 (20...Qb4 21.Rb1 h6+–) 21.ed5 Rc8 (21...Re8 22.dc6 Nf8 23.h4 Re3 24.hg5 fg5 25.c7+–) 22.dc6 Rc6 (22...Nf8 23.Nd5 Qb5+–) 23.Qc6 (23.Qc6 Nf8 24.Nd5+–) 1–0. pat_cash87 – diwi_at, lichess.org, 2020.

    5.d4 f5 6.Nh3 Nc6 7.Bb5 a6 8.Ba4 b5 9.Bb3 Nf6 10.c3 Ng4 11.Qd2 Qh4 12.Bd5+/– Bb7 13.Be6 f4? 14.ef4 Nd8+/– 15.Bg4 Qg4 16.f3?? Qh4?? 17.Qf2+– Qf2 18.Nf2 ef3+= 19.g3 Bd6 20.Nd2 0-0 21.0-0-0 Nf7 22.Rhe1 g6 23.Nde4 a5 24.Nd6 Nd6+= 25.Re7 Nc4 26.Rc7+– Bd5 27.Rc5 Be6 28.Rb5 ab4 29.cb4 Ne3 30.Rd2 Rac8 31.Rc5 Rc5 32.dc5 Nc4 33.Rd4 Ne3 34.Re4 Nc4 35.Re6 Nb2 36.Kb2 Kg7 37.Kb3 h5 38.b5 Kh6 39.c6 Rc8 40.a4 Kg7 41.Kc4 Kf7 42.Rd6 Ke7 43.Rg6 Kd8 44.Rg8 Kc7 45.Rc8 Kc8 46.Kc5 h4 47.g4 h3 48.b6 Kb8 49.a5 Ka8 50.a6 Kb8 51.Kd6 Ka8 52.b7 Kb8 53.Kd7 Ka7 54.c7 Ka6 55.b8N Kb7 56.c8Q Kb6 57.Kd6 Kb5 58.Kd5 Kb4 59.Qc4 Ka3 60.Qb5 Ka2 61.Kc4 Ka1 62.Kc3 Ka2 63.Qb2# 1–0. rla – alarconconsult, internet, 2007.

    5.Qh5 g6 6.Qd1 h5 7.c4 Ne7? (7...a5 8.cd5 ab4 9.Qc2 Qd5 10.Qc7=) 8.cd5 (better is 8.Bf6!? Rh6 9.Nc3 dc4 10.Bc4+–) 8...Nd5+= 9.Nc3 Nc3 10.Bc3 Nc6 11.Bb5 Bd7 12.Bc4 Ne5 13.Be5 fe5 14.Qb3 Qe7 15.Ne2 0-0-0 16.0-0 Bg4 17.b5 Be2 18.Be2 c6? (better is 18...Rd2 19.Rfd1 Re2=) 19.bc6+– b6 20.Ba6 Kc7 21.Bb7 Rd3 22.Qc4 Qc5 23.Qf7 Be7 24.Qg6 Rd2 25.Qe4 Rf8 26.Rfd1 (better is 26.Qh7+–) 26...Rdf2?? (better is 26...Rff2 27.Rd2 Rd2+/–) 27.Rd7+– Kb8 28.c7 Qc7 29.Rc7 Kc7 30.Qc6 Kd8 (30...Kb8 31.Ba8 Rf1 32.Rf1 Rf1 33.Kf1 Ba3 34.Qb7) 31.Rd1 (31.Qc8) 31...Bd6 32.Qd6 Ke8 33.Qd7 1–0. baudrey – crazysherpa, Live Game Caissa's Web, 2004.

    5.c4 c6

    6.cd5 cd5 7.Nc3 Be6 8.d3 ed3 9.Bd3 Ne7 10.Nf3 Nf5 11.Bf5 Bf5 12.Qd5 Qd5 13.Nd5 Bd6 14.0-0 0-0 15.Nd4 Bd7 16.Nc3 Nc6 17.Nc6 Bc6 18.Rfd1 Be5 19.Rac1 Rfd8 20.Rd8 Rd8 21.Rd1 Rd1 22.Nd1 Bb2 23.Nb2 Kf7 24.f3 Ke6 25.Kf2 Ke5 (25...f5 26.Ke2+/–) 26.Ke2 Bb5 27.Kd2 f5 28.g3 g5 29.Nd3 Bd3 (better is 29...Kd5!?+/–) 30.Kd3+– b6 31.h4 g4 32.fg4 fg4 33.e4 h5?? (33...b5 34.Ke3 h6+–) 34.b5 Kd6 35.Kd4 Ke6 36.e5 Kd7 37.Kd5 Ke7 38.e6 Kd8 39.Kd6 Ke8 40.e7 Kf7 41.Kd7 Kf6 42.e8Q Kg7 (42...a6 43.Qe6 Kg7 44.ba6 b5 45.a7 b4 46.a8Q ba3 47.Qag8) 43.Qh5 (43.Ke7 a5 44.Qf7 Kh6 45.Kf6 a4 46.Qg6) 43...Kf6 44.Qg4 (44.Qg5 Kf7 45.h5 Kf8 46.h6 a6 47.Qg7) 44...Ke5+– 45.h5 Kf6 (45...Kd5 46.h6 Kc5 47.h7 Kb5 48.Qb4 Ka6 49.Kc6 b5 50.Qb5) 46.h6 Ke5 47.h7 Kf6 (47...Kd5 48.h8Q a6 49.Qhd4) 48.h8Q Kf7 49.Qgg7 (49.Qe6) 1–0. Fournier,Frederic – SojiYo(C), Active, 2008.

    6.cd5+= cd5 7.Nc3 Be6 8.Nge2 Bf7 9.Rc1 a6 (9...Nc6 10.Nd4+=) 10.Nd4 Nd7 11.d3 ed3 12.Bd3 Ne7 13.Qg4 (13.0-0!?+/–) 13...Ne5+= 14.Qe2 Nd3 15.Qd3 g6 (15...Nc6!?+=) 16.0-0 Bg7 17.Nce2 (17.Na4 h6+/–) 17...0-0 18.Nf4 Qd6 19.Rc3 g5 20.Nfe2 Bg6 21.Qd2 f5 22.Rfc1 Nc6?? (22...f4 23.Rc7 b5 24.ef4 gf4 25.Nf3 Bb2 26.Qb2+=) 23.Rc5 (better is 23.Nc6 bc6 24.Rc6+–) 23...Nd4 24.Bd4 (24.ed4?! f4=) 24...Bd4 25.Qd4 Rad8 26.Rc7 Rf7 27.R7c5 Rfd7 (27...Rff8 28.Nc3 Bf7 29.Nd5 Bd5+/–) 28.h3 h5 29.f3 (29.a4!?+/–) 29...Re7 30.Rc8 ½–½. Zhukov,Vladimir (1940) – Smolskiy,Mikhail (2025), Tula CC–ch, 2007.

    6.cd5 cd5 7.Ne2 Bd6 8.Nbc3 Be6 (8...Be5 9.Nd4+=) 9.g3 (9.Nd4!? Bf7 10.d3+–) 9...Ne7 (9...Nc6 10.Nf4 Bf4 11.gf4=) 10.Nf4 (10.d3 Bg4 11.Bg2 a5 12.de4 ab4 13.ab4 Ra1 14.Ba1 de4 15.Qa4 Nbc6+–) 10...Bf7 11.Bb5 Nbc6 12.d3 a6 (12...ed3!? 13.Bd3 d4=) 13.Bc6+= bc6 14.de4 de4 (14...a5 15.ed5 ab4 16.ab4 Ra1 17.Ba1 Bb4 18.dc6+=) 15.Ne4+– Bf4 16.Qd8 Rd8 17.gf4 Nd5 (better 17...Bd5 18.f3 Kf7+–) 18.Rb1?? (18.Rg1 Bg6 19.Ng3 Ne7+–) 18...0-0? (18...Bg6 19.f3 Ne3 20.Rg1=) 19.Rd1 (19.f5 Rfe8 20.Nc5 Ra8+–) 19...Rfe8 (19...Bh5 20.Rd4 Nf4 21.Nc5=) 20.Nc5 (20.Rd4 Bh5 21.0-0 a5 22.ba5 Bf3+–) 20...Ra8 (20...Bh5 21.Rd4 Nf4 22.Kd2 Rd4 23.Bd4+= (worse 23.ed4 Re2 24.Kc3 Rf2–+)) 21.0-0 (21.Rg1 a5 22.Nd7 ab4 23.Nf6 Nf6 24.Bf6 ba3 25.Rg7 Kf8 26.Rh7 Re6+–) 21...Bg6 (21...a5!?+=) 22.Rfe1+– Nc7 (22...Bh5 23.Rd4+–) 23.Rd7 (23.Rd6!? a5 24.ba5 Nd5 25.Rc6 Nf4+–) 23...Ne6 24.Ne6 Re6 25.Red1 Be8 (25...Ree8 26.R1d6+–) 26.Rc7 (26.Rd8 Rd8 27.Rd8 Kf7+–) 26...Kf8 (26...a5 27.f5 Re4 28.ba5 Ra5 29.Rd8 Rf5 30.Rc6+=) 27.Bd4 Re7?? (better 27...Kg8+–) 28.Bc5 Ra7 (28...Kg8 29.Re7 f5+–) 29.Ra7 (29.Ba7?! Rc7 30.Bc5 Kf7+–) 29...Kf7 30.Re7 Kg6 31.Re8 Kf7 32.Re7 Kg6 33.Kg2 (33.Rdd7 a5 34.Rg7 Kh5 35.Rg3 h6 36.Rdg7 Kh4 37.Kg2 ab4 38.Rh3) 33...f5 (33...h6 34.Rdd7 Kf5 35.e4 Kf4 36.Be3 Kg4 37.Rg7 Kh4 38.Rg6 h5 39.f4 c5 40.Bf2) 34.Kf3 (34.Rd6 Kh5 35.Rg7 h6 36.Rh7 Kh4 37.Rhh6 Kg4 38.h3) 34...Kh5 (34...h6 35.Rd6 Kh7 36.Bd4 h5 37.Rg7 Kh8 38.Rd8) 35.Rg1 (35.Rg7 h6 36.Rd6 a5 37.ba5 Kh4 38.Rh6) 35...g5 (35...h6 36.Reg7 a5 37.Rh7 ab4 38.Rg5 Kh4 39.Rh6) 36.Rg5 Kh4 37.Rh7 1–0. BeepBeepImAJeep (2565) – Svezhaya_mocha (1870), lichess.org, 2017.

    5.d3 f5

    6.de4 fe4 7.c4 Nf6 8.cd5 Qd5 (worse is 8...Nd5 9.Qh5 Ke7 10.Qh4 Kd7 11.Qg4 Kd6 12.Qe4+–) 9.Nc3 Qd1 10.Rd1 Bd7 11.Bc4 Nc6 12.Nge2 (12.Nd5 Nd5 13.Bd5 a5+/–) 12...0-0-0 (12...a5 13.ba5 Na5 14.Ba2=) 13.0-0 (13.Ng3 Re8+/–) 13...Bg4 (13...Ne5!? 14.Bb3 Nd3=) 14.Rd8 Nd8 (14...Kd8!? 15.Ng3 a5 16.ba5 Ne5 17.Nce4 Nc4 18.Nf6 Nb2 19.Ng4 Ba3+/–) 15.Ng3+– Bd6 16.Nge4 Ne4 (16...Be5!? 17.Nf6 Bf6+/–) 17.Ne4 Be7 (17...Bf8 18.f3 Be6 19.Bd3+–) 18.h3 Be6 19.Be6 (better is 19.Bg7!? Re8 20.Be6 Ne6+–) 19...Ne6 20.Rd1 Rd8 21.Rd8 Bd8 22.f4 b6 23.Kf2 c5 (23...g6 24.g4+–) 24.bc5 bc5 25.g4 (25.f5 Ng5 26.Ng5 Bg5 27.Bg7 Kd8+–) 25...c4 (25...g6 26.Ke2+–) 26.Nd6 Kc7 27.Nc4 Be7 (27...Bf6 28.Ne5+–) 28.a4 (28.f5 Ng5 29.Bg7 Kc6+–) 28...Nc5 (28...Bf6 29.Ne5+–) 29.a5 (29.Bg7 Na4 30.e4 Nc5+–) 29...a6 (29...Bf6 30.Ne5+–) 30.Bd4 (30.Bg7 Kc6+–) 30...Nd3 (30...Bf8 31.Bc5 Bc5 32.Ke2+–) 31.Ke2 Nb4 32.Bb6 (better is 32.Bg7!? Kc6+–) 32...Kc6 33.Ne5 Kb7 (33...Kb5 34.e4+–) 34.f5 Nc6 35.Nc6 Kc6 36.Kd3 Bf6 (36...Kb5 37.e4+–) 37.Kc4 Be7 38.e4 h6 (38...Kd7 39.Bd4 Bd8 40.Bg7 Ba5 41.e5+–) 39.e5 Kb7 40.Kd5 Bf8 (40...h5 41.e6+–) 41.Ke6 (41.Bc5 g6 42.Bf8 Kc7 43.fg6 Kc8 44.Bh6 Kd7 45.g7 Kd8 46.g8Q Kc7 47.Qf7 Kb8 48.Kc6 Kc8 49.Qe8) 41...Kc8 42.Kf7 Bb4 43.Kg7 (better is 43.e6!? h5+–) 43...Bc3 44.Kh6 Be5 45.g5 Kd7 46.Kg6 Ke7 47.Bc5 Ke8 48.f6 Bf6 49.gf6 Kd7 50.h4 Ke8 51.h5 Kd7 52.h6 Kc6 Plans f7 53.h7 Kc5 (53...Kc7 54.Bb6 Kd7 55.f7 Kd6 56.f8Q Kd5 57.Qc5 Ke6 58.h8Q Kd7 59.Qhc8) 54.h8Q (54.f7 Kd6 55.f8Q Ke5 56.h8Q Kd5 57.Qf7 Ke4 58.Qf5 Ke3 59.Qc3 Ke2 60.Qff3) 54...Kd4 55.f7 Ke3 (55...Kc5 56.Qc3 Kd5 57.Qd3 Kc6 58.f8Q Kc7 59.Qfd6 Kc8 60.Q3a6) 56.f8Q Kd3 (56...Ke4 57.Qf5 Ke3 58.Qc3 Ke2 59.Qff3) 57.Qe8 (57.Qf3 Kc4 58.Qhc3 Kb5 59.Qfc6) 57...Kd2 (57...Kc2 58.Qa4 Kd3 59.Qhd4 Ke2 60.Qad1) 58.Qd4 (58.Qb2 Kd3 59.Qee2) 58...Kc2 59.Qc8 (59.Qe2 Kb3 60.Qeb2) 59...Kb1 (59...Kb3 60.Qcc3 Ka2 61.Qb2) 60.Qb4 (60.Qb7 Kc2 61.Qbb2) 60...Ka2 61.Qc2 Ka1 62.Qcb2 1–0. Fournier,Frederic (1830) – elangelgris7, Active, 2007.

    6.de4 fe4 7.Qh5 Kd7? 8.Qd5+– Bd6?! (8...Ke8 9.Qh5 Ke7+–) 9.Bg7 (9.Qe4?! Nf6 10.Qh4 a5+–) 9...Nf6 (9...Ne7 10.Qe4 Re8+–) 10.Qf7 Kc6 11.Bf6 Qd7 (11...Qf8 12.Qc4 Kd7 13.Bh8 Qh8+–) 12.Qc4 (12.Bh8?! Qf7 13.Nc3 Qg6+–) 12...Bc5 13.Qc5 1–0. Fournier,Frederic (1990) – NN, Active, 2004.

    6.de4 fe4 7.Qh5 Ke7 +=.

    5.d3 Bf5

    6.de4 de4 7.Qd8 Kd8 8.Ne2 +=.

    6.de4 Be4 7.Nf3 (7.Nc3 Nc6+/–) 7...Bf3 (7...a5!?=) 8.Qf3+= Nc6 9.Nc3 Ne5 (9...Nge7!?+/–) 10.Qd5+– Qd5 11.Nd5 Bd6 12.c4 Nc4?? (better is 12...c6 13.Nc3 Rd8+–) 13.Bc4 Ne7 14.Ne7 Ke7 15.0-0 h5 16.h3 g5 17.Rfd1 a6 18.Be2 b5 19.Bf3 Rad8 20.Rd5 (20.Rac1 h4+–) 20...Be5 (20...g4 21.Be4+–) 21.Be5 Rd5 22.Bf6! (worse is 22.Bd5 fe5 23.Rc1 g4+–) 22...Kf6 23.Bd5 Rd8 24.Bb7 Rd2 (24...Rd6 25.Rc1+–) 25.Ba6 c6 26.Bb7 (better is 26.Rc1!? Rd6+–) 26...Rc2 27.a4 Rb2 (27...ba4 28.Ra4 Rc4 29.g3+–) 28.ab5 (better is 28.a5 Rb4 29.a6+–) 28...cb5 29.Bf3 h4 30.Bc6 Rb4 31.Ra5 Rb1 32.Kh2 b4 33.Rb5 Rb2 34.f3 Ke7 (34...Rb1 35.Be4 Re1 36.Rb6 Ke5 37.Rb4 Re3 38.Rb5 Kf6 39.Kg1+–) 35.e4 Kd6 36.Bd5 Ke5 37.Rb8 (37.Bb3! Kd4 38.Rb4 Kc5+–) 37...Kf4 38.Rf8 Ke3 39.Rf5 Kd4 (39...Rb1 40.e5 Rc1 41.e6+–) 40.Rg5 Kc3 Black prepares b3 (40...Rd2 41.Rg8+–) 41.Rg4 (better is 41.e5!? Re2 42.e6 b3+–) 41...Rd2 42.Rh4 b3 43.Bb3! Kb3 44.Rh8 Kc3 45.Re8 Kd4 (45...Kb4 46.f4+–) 46.e5 (better is 46.Rd8 Ke5 47.Rd2 Kf4+–) 46...Kd5 (46...Ra2 47.h4+–) 47.e6 (better is 47.Rd8 Ke5 48.Rd2 Kf5 49.g4 Kf4+–) 47...Ke5 48.e7 Kf6 (48...Rd7 49.h4 Ke6 50.Kg3+–) 49.Rd8 Ke7 (49...Rg2 50.Kg2 Ke7 51.Rc8+–) 50.Rd2 Kf6 51.Rd4 Ke5 52.Rg4 Kf5 53.h4 Kf6 54.h5 Kf7 55.h6 1–0. Fournier,Frederic – wein, Active, 2007.

    4.e3 Be6

    5.b5 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 Nd7 9.Nf3 Qa8 10.Nc3 Bd6 11.Be2 Ne7 12.0-0 0-0 13.d3 Bb4 14.Qb1 Qa5 15.Na2 Bd6 16.c4 Ra8 17.Nc3 Nc5 (17...Bb4 18.Qc2+=) 18.Bb2 (18.d4 ed4 19.Nd4 Bf7 (19...dc4? 20.Ne6 Qa1 21.Qa1 Ra1 22.Ra1 Ne6 23.Bc4+–) 20.cd5 Nd5 (20...Bd5?? 21.Nd5 Nd5 22.Bc4+–) 21.Nd5 Bd5=) 18...Na4 19.Na4 Qa4 20.Qa1 dc4 21.dc4 Bc5 (21...Nc8 22.Qc1+=) 22.Bc3 (22.Nd2 Bb4 23.Ne4 c6=) 22...Qa1 23.Ra1 Ra1 24.Ba1 Nc8 (24...Bb4!?-/+) 25.Nd2 Bb4 26.Ne4 b6 (26...Nb6 27.c5 Nd7 28.c6 bc6 29.bc6+=) 27.Nc3 (27.Bc3 Bc3 28.Nc3 Nd6=) 27...Nd6 (27...Bc3 28.Bc3 Nd6 29.Bb4+=) 28.Nd5= Bd5 (28...Bc5 29.Kf1=) 29.cd5 Kf7 30.f3 (30.Bb2 g6=) 30...Ke7 (30...Bc5 31.Bd3 Be3 32.Kf1-/+) 31.g3 (31.Bd3 g6+=) 31...Nc8 (31...Bc5 32.Bd3 Be3 33.Kf1-/+) 32.f4 (32.e4 Bc5 33.Kf1 Bd4 34.Bd4 ed4+=) 32...Kd6 (32...e4 33.Bg4 Nd6 34.Bb2-/+) 33.fe5= fe5 34.e4 Bc5 35.Kg2 Na7 (35...Bd4 36.Bd4 ed4 37.Kf3=) 36.Kf3 (36.Bc3 Bd4 37.Bb4 Bc5+/–) 36...Bd4+= 37.Bd4 ed4 38.Bc4 (better is 38.Kf4!?+=) 38...Kc5-/+ The isolani on b5 becomes a target 39.Bb3 (39.Bd3 g5 40.Kg4 Nb5 41.Kg5 Na3=) 39...Nb5 40.e5 Nc3 41.d6 (41.e6 Kd6-/+) 41...cd6–+ 42.e6 Nb5 (better is 42...Kc6!? 43.Bc2 g6–+) 43.e7+= Nc7 44.Bf7 b5 45.e8Q Ne8 46.Be8 Kc4 47.Ke4? (better is 47.Ke2+=) 47...Kc3?? (better is 47...d5 48.Kf3 b4–+) 48.Bb5+/– d5 49.Kd5 d3 50.Bd3 Kd3 51.Ke6 Ke3 52.Kf7 Kf3 (52...g5 53.Kg7 g4 54.Kh7 Kf3+–) 53.Kg7 Kg2 54.Kh7 Kh2 55.g4 1–0. GuestRBHB – GuestJMBM, freechess.org, 2017.

    5.b5 Bd6 6.Nf3 Ne7 7.Be2 0-0 8.0-0 a6 9.a4 c6 10.c4 (better is 10.Ba3!?+=) 10...dc4-/+ 11.Qc2 cb5 (11...ab5!? 12.ab5 Ra1 13.Bc4 Ra5 14.Be6 Kh8-/+) 12.ab5+= Qc7 13.h3 (13.Rc1!?+=) 13...Nd7 14.Nc3 Rfc8 (14...Nc5 15.ba6 ba6 16.Rfb1-/+) 15.d4 Bf5 (15...Nd5 16.ba6 ba6 17.Nd5 Bd5 18.e4-/+) 16.e4+= Bg6 17.d5 Nb6 18.Nh4 Bf7 (18...Ned5 19.Nd5 Nd5 20.Ng6+=) 19.Bg4 Rd8 20.Nf5 Nf5 21.Bf5 Bc5 22.Kh1 (22.ba6 ba6 23.Rfb1 Bd4+=) 22...Bd4 23.ba6 ba6 24.Na4 (24.Ba3 g6 25.Bg4 Rab8+=) 24...Bb2 (24...g6 25.Be6 Be6 26.de6-/+) 25.Qb2 Na4 26.Ra4 c3 (26...g6 27.Bg4 f5 28.ef5 Bd5 29.fg6 hg6 30.Qc2-/+) 27.Qc2 g6 28.Bg4 h5 (28...f5 29.ef5 Rd5 30.Rc1+=) 29.Bf3 Rdc8 30.Rc1 (30.Rb1 Be8 31.Ra3 Qc4=) 30...Qb6 (30...Qc5 31.Rca1+=) 31.Ra3 a5 32.Rc3 Rc3 33.Qc3 Qf2 34.Qc6 Ra7? (better is 34...Rf8+=) 35.Qf6 Kh7 (35...Ra8 36.Qe5 h4 37.Qa1+–) 36.Rc8 Bg8 37.d6 (37.Qe5 Qe1 38.Kh2 h4+–) 37...h4 (better is 37...Qb2+–) 38.Rg8?? (38.Qe5 Rf7 39.Rc7+– (39.Qa5?! Rf3 40.Rc7 Kh6 41.gf3 Qf3 42.Kg1 Qe3 43.Kg2 Qe4 44.Kf2 Qd4 45.Ke2 Bc4 46.Rc4 Qc4 47.Kd1 Qb3 48.Kd2 Qh3+=)) 38...Qe1-/+ 39.Kh2 Qg3 40.Kg1 Kg8 41.Qe6 Kh7 42.d7 1–0. GuestYYLH – Kanka, freechess.org, 2017.

    5.Qc1 Bd6 6.c4 c6 7.Nf3 Nh6 8.d4 e4 9.Nfd2 0-0 10.Be2 f5 11.f4 g5 (11...Ng4 12.Qc3+=) 12.0-0= gf4 13.ef4 Nd7 14.Qe1 Rf6 15.Nc3 Qf8 16.Nd1 Qg7 17.Ne3 Rg6 18.Bh5 Nf6 (better is 18...Rf6!?+=) 19.Bg6+/– Qg6 20.cd5 cd5 21.Rc1 (better is 21.Nb3!?+/–) 21...Nh5+= 22.Qh4 Nf7? (22...Ng4!? 23.Ng4 fg4+=) 23.Rf2 Re8 24.Rcf1 Be7 25.Qh3 Kh8 (25...Ng5 26.fg5 f4 27.Nf5 Bf5 28.g4+–) 26.Kh1 Bf6 27.Rg1 (27.Rc1 Qh6+–) 27...Nh6 28.g3 Bg7 29.Qf1 Nf6 30.Qb5 Nhg4 31.Ng4 (31.Re2 Ne3 32.Re3 Bc8+/–) 31...Ng4 (31...fg4 32.Re2 (worse is 32.Qb7 e3 33.Rfg2 ed2 34.Rd2 Qe4 35.Rdg2 Qe3-/+) 32...Bf5 A) 33.Qb7?! e3 34.Nb3 Be4 35.Rgg2 Bf3+= (worse is 35...Bg2 36.Kg2 Qe4 37.Kg1+=); B) 33.Rge1+=) 32.Re2+/– Qh5 33.Qb7 (better is 33.Rge1!? b6 34.Nf1+/–) 33...e3= 34.Qb5 Nf2?? (better is 34...ed2 35.Qd3 Bc8 36.Rd2 Bd7=) 35.Rf2!+/– ef2 36.Rf1 Bf7 37.Rf2 Qd1 38.Kg2 Bh5? (38...Qc2 39.Nf3 Qe4 40.Qb7+–) 39.Nf3?? (better is 39.Qd5 Be2 40.Qf7+–) 39...Bf3+/– 40.Rf3 Qc2 41.Rf2 Qe4 42.Kg1 h5 43.Qf1 Bd4 44.Bd4 Qd4 45.Kg2 Qe4 46.Kh3 Kh7 (46...h4 47.Qa1 Kh7 48.Qd1 (48.Kh4 Re6 49.Qe5 Re5 50.Rc2 Re7 51.g4 Qc2 52.Kg3 Re3 53.Kh4 Qh2 54.Kg5 Qh6 55.Kf5 Qg6) 48...hg3 49.Qh5 Kg7 50.Rf3+/– (50.Kg3?! Re6 51.Qf3 Qe1=; 50.hg3?? Rh8 51.Qh8 Kh8–+)) 47.Qa6 Qe3 (47...Re7 48.Qf6+–) 48.Qc6 (48.Rc2 Qe7+–) 48...Re7 49.Qf6 d4? (49...Qe6 50.Qg5 h4 51.Qh4 Kg8 52.Qg5 Kh8=) 50.Qf5 Kg7 51.Qg5 Kf8 52.Rc2 Qe6 53.f5 Qd7 54.Qh6 (54.Qf6 Kg8 55.Rc4 Rf7 56.Rd4 Qf5 57.Qf5 Rf5 58.Rd8 Kf7 59.Rd7 Ke6 60.Ra7 Rf2+–) 54...Rg7 (54...Kg8 55.Rc5+– (55.Qh5 Rh7 56.Qh7 Qh7 57.Kg4 Qe7 58.Rc8 Kh7–+)) 55.Qh8 (55.Qh5 Rh7 56.Qh7 Qh7 57.Kg4 Qe7 58.Rc8 Kf7–+) 55...Kf7 56.Qh5 Kf6 (56...Kg8 57.Kg2 d3 58.Rd2+–) 57.Qh6 (57.Rc6 Ke7 58.Qh4 Ke8 59.Re6 Kf8 60.Qh8 Kf7 61.g4+–) 57...Ke5 (57...Kf5 58.Kg2 Rf7 59.Qh5 Kf6 60.Rf2 Kg7 61.Rf7 Qf7 62.Qf7 Kf7+–) 58.Rc5 Ke4 59.Qf4 Kd3 60.Qf3 Kd2 Black prepares the advance d3 61.Rd5 (61.Qf2 Kd3 62.Qc2 Ke3 63.Re5 Kf3 64.Qg2) 61...Rh7+– 62.Kg2 Qd5 (62...Qb7 63.Rd4 Kc1+–) 63.Qd5 d3 64.f6 Kc2 65.f7 (65.f7 Rf7 66.Qf7+–) 1–0. Cerny,Lumir (1730) – Slavik,Jan (1690), Decin Treybal op, 2006.

    5.c3 Bd6+= 6.Qb3 Ne7 7.c4 c6 8.c5 Bc7 9.Nf3 Bf7 (9...Bg4 10.h3 Bh5 11.d3+=) 10.d4 e4 11.Nfd2 Nd7 12.Be2=. Gross – Giraudet, corr, 1978.

    5.Nc3 Qd7 6.d4 e4 7.Nge2 f5 (7...Bd6 8.Nf4 Bf4 9.ef4=) 8.Nf4 Bf7 9.Be2 Nf6 10.0-0 Bd6 (10...a6 11.Nb1=) 11.Nb5 Be7 12.Rb1 (12.Nc3 a5=) 12...Nc6 (12...g5 13.Nh3 h6 14.Kh1+=) 13.Qd2 (13.c4 a5=) 13...Nd8 14.Rfd1 (14.Nc3 Ne6=) 14...c6 (14...g5 15.Nh3 a6 16.Nc3+=) 15.Nc3 Bd6 16.Na4 (16.b5 g5 17.Nh3 Rg8=) 16...b6 17.Ba6 (17.Kh1 Ne6+=) 17...0-0 (17...Qc7 18.b5-/+) 18.Nc3 (18.h3 Nh5+=) 18...g5 (18...b5 19.a4+=) 19.Nh3-/+ h6 (19...Bh5 20.Re1 Ne6-/+) 20.Ne2 (20.Kh1 Ng4+=) 20...b5 (20...Ne8 21.c4 Nc7 22.b5 cb5 23.Bb5 Nb5 24.cb5–+) 21.a4 Rb8 (21...ba4 22.Kh1-/+) 22.ab5 (22.Ra1 ba4 23.Kh1 Be6 24.Ra4 f4 25.Nhf4 gf4 26.Nf4 Qf7-/+) 22...cb5 23.Ra1 Be6 (23...Rb6 24.Ra5 Qc7 25.Ra2–+) 24.Ra5 (24.c3 f4 25.ef4 Bh3 26.gh3 Qh3–+) 24...f4 25.ef4 (25.Nhf4 gf4 26.Nf4 Bf5–+) 25...Bh3–+ 26.gh3 Qh3 (26...gf4 27.Nf4 Qf5 28.Bc1–+) 27.Ra3 (27.Qc3 Qh5 28.Re1 Bb4 29.Qc7 Be1 30.Kf1 Ba5 31.Qa5–+) 27...Qh4–+ 28.Rg3 Nh5 (28...Ne6 29.Rg2 Bf4 30.Qc3–+) 29.Rg2 Nf4 30.Nf4 Bf4 (better is 30...Qf4 31.Qe2 Qf3 32.Qf3 ef3–+) 31.Qe2 Rf6?? (better is 31...Ne6 32.Bb5 Rb5 33.Qb5 Bh2 34.Rh2 Qg4 35.Rg2 Qd1 36.Qf1 Qc2–+) 32.Bb5-/+ Rfb6 (32...Ne6 33.c4 Nc7 34.Ra1-/+) 33.Bd7 (33.Ba4 Rb4 34.Bb3 Rb3 35.cb3 Rb3-/+) 33...Rb4 34.Ba3 Rb1 35.Bg4 (35.Bc5 a5-/+) 35...Kg7 36.Bc5 (36.Kh1-/+) 36...Nf7 (36...a5 37.Bd7–+) 37.Be6 (37.Ba7 R8b2 38.Bc5 Bd6+=) 37...Rd1 (37...e3 38.fe3 Be3 39.Kh1-/+) 38.Qd1+= a5 (better is 38...e3!? 39.f3 Rd8+=) 39.Bd5= e3 (39...Re8 40.Bc6 Rc8 41.Be4 Bh2 42.Rh2 Qe4 43.Rh3=) 40.fe3+= Be3 41.Kh1 Re8 (better is 41...Ne5+=) 42.c4 (42.Qe2!?+=) 42...Bf2 (42...Bf4!? 43.Re2 Bh2 44.Re8 Bg3 45.Kg2 Qh2 46.Kf3 Qh5 47.Kg3 Qd1=) 43.Rg4= Qh3 44.Re4 Re4 45.Be4 Qe3 (45...Bg3 46.Qe2 Bh2 47.Qh2 Qf1 48.Qg1 Qh3 49.Qh2 Qf1 50.Qg1 Qh3 51.Qh2=) 46.Bg2 (46.Bb7 Qf4=) 46...a4 (46...Qf4 47.Bd5=) 47.Bd5 Be1 (47...a3 48.Qa1 a2 49.Qa2 Qe1 50.Kg2-/+) 48.Qg4 (48.Qh5 Qf2 49.Qf3 Qf3 50.Bf3 Bf2+=) 48...Qf2 (48...Bc3 49.Qf5 Qe1 50.Kg2 Qe2 51.Qf2 Qf2 52.Kf2=) 49.Qf3+= Qf3 50.Bf3 Bc3 51.Kg2. pierred – fedeajedrecista, Yahoo, 2005.

    5.c4 Ne7 6.Nf3 Nd7 7.Qb3 c6 8.Nc3 dc4 9.Bc4 Bc4 10.Qc4 Nb6 11.Qb3 (11.Qe2 Qd7+=) 11...Ned5 (11...Qd3 12.0-0-0=) 12.Ne4 Nc7 (12...a5 13.0-0=) 13.0-0 Qd5 14.Qc2 Be7 15.d4 ed4 16.Nd4 0-0 17.Rac1 Rfd8 18.Nc5 Bc5 19.bc5 (worse 19.Qc5 Qc5 20.Rc5 Na4=+) 19...Nd7 20.Nf5 Qe6 21.Rfd1 Ne5 22.Nd6 Rab8 23.Rd4 (23.e4 Ne8 24.f4 Nd7+/-) 23...Nf7 (23...Nb5!? 24.Nb5 cb5+=) 24.Rcd1 Nd6 (24...Nb5 25.Re4 Qd7 26.Rh4+/-) 25.cd6 Nd5 26.Rh4 h6 27.e4 Nb6 28.f4?? (better 28.e5 fe5 29.Re4+/-) 28...Rd6=+ 29.Rd6 Qd6 30.e5 Qd5 31.ef6 Rd8 32.Be5 (32.fg7? Qd1 33.Qd1 Rd1 34.Kf2 Rd2 35.Kf3 Rb2 36.Rh6 Kg7-+) 32...Qd1 33.Qd1 Rd1 34.Kf2 gf6 35.Bf6 Nd5 (35...Rd2 36.Kf3=) 36.Be5+= Rd3 37.Rh6 Ra3 38.g4 c5 39.f5 Re3 (39...Nb4!? 40.Ke2 Nc6 41.Rh8 Kf7 42.Rh7 Kg8 43.Rg7 Kf8+/-) 40.Re6+/- c4? (better 40...Rb3+/-) 41.g5+- c3 42.g6 Re5 43.Re5 Nf4 (43...c2 44.Re8 Kg7+-) 44.Ke3 c2 (44...Nh5 45.Kd4 Kg7 46.Re7 Kf8 47.Rf7 Ke8 48.Ke5+-) 45.Rc5 Nd5 46.Kd2 (better 46.Ke4!? Nf6 47.Kd4 b5+-) 46...Nb4 (46...Ne7+-) 47.f6 (47.f6 Nc6 48.f7 Kf8 49.Rf5 c1B 50.Kc1 b6 51.g7 Ke7 52.f8Q Kd7 53.g8Q Ne7 54.Qd8 Kc6 55.Qe7 a5 56.Qc4) 1-0. Steffens,Olaf (2185) - Davydov,M (1955), Bremen Silvester Open, 2018.

    5.d3 a5 6.Nd2 ab4-/+ 7.ab4 Ra1 8.Qa1 Bb4 9.Ngf3 Nh6 10.Be2 Nf7 (10...0-0 11.0-0-/+) 11.0-0 0-0 12.Rd1 (12.Qa4 Nc6-/+) 12...Nd7 (12...Nc6 13.c3 Ba5 14.c4-/+) 13.Qa4 Bd6 14.Ra1 Qb8 15.c4 dc4 16.dc4 (16.Nc4?? b5 17.Qc2 bc4–+) 16...Nc5 17.Qc2 Qc8 18.Nb3 Bf5 19.Qc3 Ne4 20.Qc1 b6 21.Nfd2 Nd2 22.Nd2 Qb7 23.Nf1 Ra8 24.Ng3 Ra1 25.Qa1 Bg6 (25...Bd7 26.Qb1-/+) 26.Qa4+= Bf8 27.h4 (27.Bf3 Qc8+=) 27...Nd6-/+ Black plans e4 28.Bf3 e4 29.Bh5 (29.Be2 Be8 30.Qc2 Be7-/+) 29...c5 (29...Bh5!? 30.Nh5 c5 31.Ng3–+) 30.Bg6 hg6 31.Ne2 (31.Nf1-/+) 31...Qc8 (31...Qf7!? 32.Qc6 Nc4–+) 32.g3 (32.Nf4!?+=) 32...Qe6-/+ (32...Qe6 33.Nf4 Qc4-/+) 0–1. Valenta,Vit (2145) – Bernardi,Ruben (2075), 13th IPCA World Championship, 2013.

    5.d3 c6 6.Nd2 Bd6 7.g3 Nd7 8.Bg2 Ne7 9.Ne2 0-0 10.0-0 Rc8 11.f4 (11.c4!?=+) 11...Qb6-/+ 12.d4 Nf5 13.fe5? (better 13.Qc1-/+) 13...Ne3–+ (13...fe5?! 14.Bh3 Rce8 15.Bf5 Rf5 16.Rf5 Bf5 17.c4-/+) 14.Qc1 Nf1 15.Nf1 (15.ed6 Ne3 16.Nf4–+) 15...fe5 16.c3 (16.Ne3 a5–+) 16...Bg4 17.Qe3 (17.Qd2 Rce8 18.Ne3 Be2 19.Qe2 a5–+) 17...Rce8 18.Qd3 (18.Nc1–+) 18…Be2 (18...Be2 19.Qd2 Bf3 20.Bf3 Rf3–+) 0–1. BeepBeepImAJeep (2615) – kingston_1972 (2545), lichess.org, 2015.

    5.d3 Nc6 6.Nd2 a6 7.c4 d4 (7...Be7 8.cd5 Bd5 9.Ngf3=) 8.e4 (better is 8.ed4!? Nd4 9.Ngf3 Nf3 10.Qf3+=) 8...Nge7+= 9.Be2 Ng6 10.Bh5 Bf7 11.g3 Qd7 12.Bg4 Be6 13.Be6 Qe6 14.Qh5 a5 15.b5 Nd8 16.Ngf3 (16.f4!? Qf7 17.f5+=) 16...Nf7 17.Qf5 (17.0-0!?=) 17...Qf5+= 18.ef5 Ne7 19.h3 Nf5 20.0-0 b6 21.Rfe1 0-0-0 22.Rac1 g5 23.Ne4 White prepares c5 23...Be7 24.c5 Kb7 25.g4 Ng7 26.Nfd2 (26.cb6!? cb6 27.Rc6+=) 26...Ne6 27.cb6 cb6 28.Rc6 Nd6 (28...Nf4!? 29.Nc4 Nd5-/+ (worse is 29...Nh3 30.Kf1+=)) 29.Nc4= Nc4 30.Re6 Ba3 31.Ba3 Na3 32.Nd6 (32.Nd6 Rd6 33.Rd6 Nb5 34.Rf6+=) 1–0. Macedo,A Soares De (1865) – Viana,H Fernandes (1810), Zonal CBX – RN, 2015.

    5.d4 c6 6.Nf3 e4= 7.Nfd2 f5 8.c4 Nf6 9.Nc3 Bd6 10.Qb3 0-0 11.f4 (11.b5 Qc7=) 11...ef3=+ 12.Nf3 Qe7 13.0-0-0 (13.c5 Bc7=+) 13...Nbd7 (13...dc4 14.Bc4 Bc4 15.Qc4 Kh8 16.Kd2-/+) 14.c5 Bc7 15.h3 (15.b5 Ne4 16.bc6 bc6-/+) 15...Bf7 (15...Ne4 16.Ne4 fe4 17.Nd2–+) 16.Ne2 (16.Bd3 Qe3 17.Kb1 Ne4-/+) 16...Rae8 (16...Ne4 17.Rg1–+) 17.Rd3 (17.Re1 Qe3 18.Qe3 Re3–+) 17...b6 (17...Ne4 18.Rg1–+) 18.Kb1 (18.Qc2!?–+) 18...Ne4 Black gets strong initiative 19.Rg1 Nf2 (19...a5!? 20.Nf4–+) 20.Rc3 bc5 21.dc5 (21.bc5 Ne4 22.Rc2 a5-/+) 21...Nh3! 22.gh3 d4 Discovered attack 23.Rc4 (23.ed4 Bb3 Eliminates the defender b3) 23...Qe4 24.Ka1 (better 24.Qc2 Bc4 25.Bd4–+) 24...Qf3= 25.Nd4 Qf2 26.Rg7! Kh8 (26...Kg7 Decoy to g7 27.Nf5 Discovered attack) 27.Rf7 Rf7 28.Nf5 (better 28.Rc2 Qf1 29.Rc1 Qc1 30.Bc1+–) 28...Be5= 29.Nd6?? (better 29.Rf4 Bb2 30.Qb2 Qb2 31.Kb2 Re3 32.Ne3 Rf4 33.Kc3=) 29...Qf1–+ 30.Ka2 Rf2 31.Ne8 (31.Rc2 Ref8 32.Ne4 Rc2 33.Qc2 Qh3 34.Be5 Ne5 35.Qc3 Qe6 36.Kb1–+) 31...Rb2 (31...Bb2 32.Qb2 Rb2 33.Kb2 Qc4 34.Nd6 Qe2 35.Kb3 Qe3 36.Kb2–+) 32.Qb2 Bb2 33.Rf4 (33.Kb2 Qc4 34.Nd6 Qe2 35.Kb3 Qe3 36.Kc2 Nc5 37.bc5 Qc5 38.Kb3 Qd6 39.h4 Qg3 40.Kb4 Qh4 41.Kc5–+) 33...Qe2 34.Rf7 (34.Kb1 Ba3 35.Rf8 Nf8 36.Nd6 Qb2) 34...Bg7 35.Kb3 Qd1 36.Kc4 Qc2 (36...Qd5) 0–1. BeepBeepImAJeep (2640) – kingston_1972 (2540), lichess.org, 2015.

    5.d4 Ne7!?

    5.Be2 Nc6 6.Nf3 Qd7 7.d3 Bd6 8.Nbd2 Nge7 9.c4 dc4 10.dc4 Ng6 11.c5 Be7 12.0-0 Rd8 13.Qc2 0-0 14.Bd3?? Bf7 15.h3?? Qd3–+ 16.Qc1 Be6 17.Rd1 Qf5 18.Nf1 Qh5 19.Ng3 Qh6 20.Kh2 Nh4 21.Nh4 Qh4 22.Qc2 f5 23.b5 f4 24.ef4 ef4 25.Ne4 Na5 26.Qc3-/+ Qh6 27.Qa5=+ f3 28.Rg1? Bd5 29.Rae1 Qf4 30.g3 Qh6 31.Qc3 Be6 32.h4 Bh4 33.Rh1?? Bf6–+ 34.Kg1 Bc3 35.Rh6 gh6 36.Bc3 Bf5 37.Nd2 Bg4 38.Re3 h5 39.Ne4 Rfe8?? 40.Ng5?? Kf8 41.Re8 Re8 42.Kf1 (42.Kf1 Kg8 43.Ba5–+). horacyad2010 – atylla3, internet, 2011.

    5.Be2 Nh6 6.Nf3 Bd6 7.d3 a5 8.b5 0-0 9.c4 dc4 10.dc4 Nd7 11.Nbd2 Nc5 12.Qc2 c6 (12...Qe8 13.0-0+=) 13.a4 (13.0-0 Bf5 14.e4 Be6+=) 13...Qd7 14.0-0 Rfc8 (14...Bf5 15.e4 Be6 16.Rfd1+=) 15.Ba3 (15.Rad1 Bf5 16.e4 Be6=) 15...cb5 16.ab5 (16.Bc5 Bc5 17.ab5 Bf5=) 16...Nf7 (16...Bf5 17.e4 Be6 18.Rfd1+=) 17.Rfd1 Bf5 18.e4 Be6 19.Nf1 Qe7 20.Ne3 Nd7 21.Bb2 Qf8 (21...Nb6 22.Bd3=) 22.Nd5 b6 (22...Qd8 23.Nh4+=) 23.Ne1 (23.Nh4 Bb4=) 23...Qd8 24.Rd3 (24.Bh5!?=) 24...Nc5 25.Rg3 (25.Rdd1 Ng5+=) 25...a4 (25...Bd5!? 26.cd5 Ng5-/+) 26.Bg4= Bg4 27.Rg4 Nb3 28.Rd1 Bf8 29.Ne3 Qe8 30.Nd5 Qe6 31.Rg3 Bc5 (31...Nd6 32.Nb6 Ne4 33.Rg7 Bg7 A) 34.Na8? f5–+ (34...Rc4?! 35.Qe2=); B) 34.Nc8-/+) 32.Nf3 (32.Nd3 Bd4 33.Ba3 Kh8=) 32...Kh8 33.Rh3 (33.Nd2 Nd2 34.Rd2 Nd6+=) 33...Ra7 (33...Nd6 34.Kh1+=) 34.Qd3 (34.Nd2 Nd2 35.Rd2 Nd6=) 34...Rf8 (34...Nd6 35.Kf1+=) 35.Rf1 (35.Nd2 Ng5 36.Rg3 Nd4=) 35...Nd8 (35...Nd6 36.Rd1+=) 36.Kh1 (36.Nd2 Nd2 37.Qd2 a3=) 36...Qf7 (36...Nb7 37.Nd2 Nd2 38.Qd2=) 37.Nh4 (37.Nd2 Nd2 38.Qd2 a3=) 37...Ne6+= 38.f4 (38.Nf5+=) 38...a3 (better is 38...Nf4!? 39.Nf4 ef4-/+) 39.Qb3 ab2 40.Qb2 ef4 (40...Nf4 41.Rhf3=) 41.e5 (41.Nf3 Rfa8=) 41...Ng5+= 42.Rd3 (42.e6!? Qe8 43.Rb3 Qe6 44.Nf3-/+) 42...Qh5-/+ 43.g3 fg3 44.hg3 Qg4 (44...Qg4 45.Nf4 fe5 46.Qe5 Ra2–+) 0–1. Gross (2425) – Grehl,Siegfried, corr 3GMMsemi–06, 1998.

    5.Ne2 a6 6.Ng3 Bd6 7.e4 Ne7 8.Qh5 g6 9.Qh6 Kd7 10.Qh4 =.

    5.Nf3 e4 6.Nd4 Bf7 7.Nc3 c5 8.bc5+/– Bc5 9.Nf5 g6+= 10.Bb5 Nd7 11.Nh4 Ne7 12.Ne2 0-0= 13.Bd7 Qd7=+ 14.Bf6 Nc6 15.Nf4 d4 16.0-0? Qd6 17.Bg5=+ Ne5 18.Rb1 b6 19.Rb5? a6 20.Rc5 bc5 21.ed4 cd4 22.Qe2 Bd5 23.Nd5 Qd5–+ 24.Rb1?? Nf7 25.Be7? Rfe8 26.Bb4 a5 27.c4 Qc6 28.Qg4 ab4 29.ab4 Qf6 30.g3 e3 31.fe3 de3 32.de3 Re3 33.Rf1 Qe6 34.Nf5 Re8 35.Ne3 Qe3 36.Kg2 Qe4 37.Qe4-/+ Re4 38.Rf4 Rf4 39.gf4=+ Kf8 40.Kf3= Ke7 41.Ke4 Ke6 42.Kd4 Nd6 43.c5 Nf5 44.Kc4 Kd7 45.b5= Ne7 46.Kd4 Ke6 47.b6 Nc6 48.Kc4 Kd7 49.Kb5 Nb8 50.h4 h5–+ 51.Kb4 Kc6 52.Kc4 Nd7 53.b7 Kb7 54.Kd5 Kc7 0–1. TheSmoker – ulmul, caissa.com, 2006.

    5.Nf3 Be7 6.g3 (6.Be2 Nh6= 7.c4 dc4 8.Qc2 Qd6 9.0-0 0-0; 6.c4 a5 7.cd5 (7.b5 dc4 8.Qc2 Nd7 9.Bc4 Bc4) 7...Bd5 8.Nc3 ab4 9.ab4 Ra1) 6...Nh6+= 7.Bg2 (7.Nc3 0-0 8.Be2 Nc6 9.b5 Na5) 7...0-0 (7...a5 8.b5+= (8.Nc3 0-0 9.0-0 Nd7) 8...0-0 9.Nc3 Nd7) 8.0-0 (8.Nc3 Nc6 9.0-0 e4) 8...Nd7 (8...Nc6 9.b5 Na5) 9.d3 (9.d4 e4-/+ (9...Nf7+=); 9.Nc3 Nb6) 9...Bd6 (9...c5 10.c3+=) 10.Nfd2 f5 (10...a5 11.c4 c6 12.c5+=) 11.f4 (11.c4 c6=) 11...e4 (11...Ng4 12.Qe2+=) 12.Nc3 (12.c4 A) worse is 12...ed3 13.cd5 (13.Bd5?! Bd5 14.cd5 Qe7=) 13...Bf7 14.Nc4+/–; B) 12...Nf6=) 12...Ng4 13.Qe2 (worse is 13.de4 Ne3 (13...de4?! 14.Qe2=) 14.Qe2 Nf1 (worse is 14...Ng2 15.ed5 Bf7 16.Qg2=) 15.ef5 Bf7 16.Nf1 c6-/+) 13...c5 (13...c6 14.Nb3=) 14.Nb5 Be7 15.bc5 Bc5 (15...Nc5 16.Rfb1=) 16.Nd4 Re8 17.Bh3 (17.N2b3 Rc8=) 17...Nh6 (17...ed3 18.cd3 Bf7 19.Bg4 fg4 20.Rac1=) 18.Ne6 (18.N2b3 Rc8=) 18...Re6 19.d4 Bf8 (19...Be7 20.c4=) 20.Rab1 (20.c4 Rc8=) 20...Rc6 21.c3 (21.c4 Nf6=) 21...Nb6 22.Qb5 Rac8 (22...Qe8 23.Rfe1-/+) 23.a4 (23.Qa5 a6-/+) 23...Nc4 (23...Ng4 24.Rfe1+=) 24.Nc4 Rc4 25.Qb7 Ra4 26.Qb3 (26.Qb5 Rac4+=) 26...Rac4 27.Rfc1 (better is 27.Rfe1+=) 27...Qe8 (better is 27...Ng4+=) 28.Bf1+= R4c7 (28...Ng4 29.Bc4 dc4 30.Qb7+/–) 29.Qd5+/– Kh8 30.Qb5 Qb5 (30...Qh5 31.Qe2 Qe2 32.Be2+/–) 31.Bb5 Ng4 32.Re1 Rb8 33.Ba4?? (better is 33.c4+/–) 33...Rcb7-/+ 34.Re2 (34.h3 Nf6 (34...Rb2 35.Rb2 Rb2 36.hg4+/–) 35.Re2 Ba3-/+) 34...Ba3 35.d5?? (better is 35.h3 Nf6 36.c4 Bb2 37.Bc6–+) 35...Rb2–+ (35...Bb2?! 36.h3 Nf6 37.Bc6–+) 36.Rbb2 Rb2 (36...Bb2?! 37.h3 Nf6 38.c4–+) 37.Rb2 Bb2 38.c4 (38.d6 Bc3 (38...Ne3 39.d7 g6 40.d8Q Kg7 41.Qe7 Kh6 42.Qf8 Kh5 43.Qg7 Bc3 44.Qh7 Kg4 45.Kf2 Be1 46.Ke3 Bf2 47.Kf2 e3 48.Ke3 g5 49.Bd1) 39.d7 Ba5–+) 38...Ne3 39.Bb3 (39.d6 Nc4 40.d7 Bf6–+) 39...Ba3 (39...Bd4 40.Kh1 Bc5 41.Ba2–+) 40.h3 (40.Kf2 Ng4 41.Kg2 Bc5–+) 40...Kg8 (40...Bc5!? 41.Kh1–+) 41.Kf2 Bc5 42.d6 (42.Ke2–+) 42...Nc4 (better is 42...Kf7–+) 43.Ke2 Bd6 44.Bc4 Kf8 45.Ke3 Bc5 46.Ke2 Ke7 (46...g6 47.Ba6–+) 47.Bg8 (47.Ba6 g6–+) 47...h6 (47...g6 48.Bd5–+) 48.Bh7 Kf6 49.g4 fg4 (49...g6 50.Bg8–+) 50.hg4 e3 (50...g6 51.f5–+) 51.Bd3 a5 52.Bc2 (52.Bb5 g6–+) 52...g5 (52...g6 53.Bb3–+) 53.f5 Ke5 54.Kd3 (54.Kf3 Bd4 55.Bd1 h5 56.gh5 Kf5 57.Bc2 Kf6–+) 54...Kf4 55.Bd1 a4! 56.Ba4 Kg4 57.f6 Kf4 58.Bc6 (58.Be8 Kf3–+) 58...g4 59.Ke2 (59.f7 h5–+) 59...h5 60.Bg2 (60.f7–+) 60...h4 61.Kf1 (61.Bc6 g3 62.Bg2 Kg4 63.Bf3 Kh3–+) 61...h3 (61...Kg3 62.Bd5 Kh2–+) 62.Bh1 (62.Bc6 g3 63.f7–+) 62...g3 63.f7 g2 64.Bg2 hg2 65.Kg2 Ke4 66.Kf1 Kd3 67.Ke1 e2 68.f8Q Bf8 69.Kf2 Kd2 (69...Bc5 70.Kg3 e1Q 71.Kf4 Qe4 72.Kg5 Be7 73.Kh6 Qg2 74.Kh7 Bf8 75.Kh8 Qg7) 70.Kf3 e1Q 71.Kf4 Qe3 72.Kf5 Qd4 73.Ke6 Qc5 74.Kf7 (74.Kd7 Qd6 75.Kc8 Qc6 76.Kb8 Qd7 77.Ka8 Qc8 78.Ka7 Bc5) 74...Qd6 75.Kg8 Qe7 0–1. Herciu,Ana_Maria – Hrib,Andrada_Ioana, CN Juniori – F12, 2011.

    5.f4 Bd6 6.fe5 fe5 7.Be5 Qh4 8.g3 –+.

    5.f4 ef4 6.ef4 Bd6 7.Qh5 g6 8.Qh4 Qe7 9.Bd3+/– Bf5 10.Ne2 Bd3 11.cd3 Nd7 12.0-0 0-0-0 13.Nbc3 c6 14.Rfe1 Qf7 15.Nd4 (15.b5 Ne7+/–) 15...Ne7 16.Qf2 (16.Nce2 Kb8+=) 16...Kb8 17.Rac1 (17.Na4 a6+=) 17...Nb6 18.Re6 (18.Nd1!?+=) 18...Nf5= 19.Rce1 Nd4 20.Qd4 Be5 (20...Rhf8 21.R6e2+=) 21.R1e5= fe5 22.Qe5 (worse is 22.Re5 Rhf8 23.g3 Nd7-/+) 22...Ka8 23.Re7 Qf5 24.Ne2 Qe5 (24...Qd3 25.Qc7 Qa6 26.Bh8 Rh8 27.b5 cb5 28.Nc3+–) 25.Be5 (25.fe5 Rde8 26.Rf7 Ref8=) 25...Rde8 26.Rg7 Reg8 27.Rc7 Rc8 28.Rf7 Rcf8 29.Rg7 Rfg8 30.Rf7 ½–½. Bulcourf,Carlos (2190) – Lopez,Diego (2110), Villa Martelli op, 2010.

    5.g3 a5=+ 6.b5 Nd7 7.a4 Bb4 8.Bg2 Ne7 9.Nf3 0-0 10.0-0 Nb6 11.c3 Nc4 12.Bc1 Bd6 13.d3 Nb6 14.Qb3 c6 15.Na3 Rc8 16.Bb2 Qd7 17.Rac1 Rcd8 18.Rc2 Bf5 19.Rd1 Kh8 20.Bf1 Bg4-/+ 21.Be2 Bf5 22.Rdc1 Bc5 23.c4 dc4 24.Nc4 Nc4 25.Qc4 b6 26.bc6 Nc6 27.Rd2 Be6 28.Qb5 Rc8 29.Bc3 Rfd8 30.Rcd1 Na7=+ 31.Qd7 Bd7 32.Ra2 Be6 33.Raa1 Be3 34.Be5 fe5 35.fe3= Rc2 36.Bf1 Nc6 37.Rac1 Bb3=+ 38.Ra1 Rf8 39.Bg2 Re2 40.Rdb1+= Bg8 41.Rb6+/– Rc8 42.Rc1+– Bd5 43.e4 Ne7 44.Rc8 Nc8 45.Rb5 Bc6 46.Rb8 Bd7 47.Ne5 Be6 48.d4 Rc2 49.d5 Bg8 50.Nc6 Be6 51.Na5 Bd7 52.Nc6 h6 53.e5 Rc1 54.Kf2 Bg4 55.e6 Rc2 56.Kg1 Rc1 57.Bf1 Re1 58.Rc8 Kh7 59.Rf8 Bh3 60.e7 Bd7 61.Kf2 Rd1 62.Rd8 Be8 1–0. NN – SuperConstellation4, 1988.

    5.g3 Nc6 6.Bg2 Qd7 7.Ne2 0-0-0 (7...a5 8.b5 Nce7 9.Nbc3=) 8.d4 (8.f4 Bd6+=) 8...Bd6 9.Nd2 a6 (9...Nge7 10.0-0+=) 10.Nb3 (10.c4 dc4 11.d5 Bd5 12.Bd5 Bb4 13.ab4 Qd5+=) 10...b6 (10...Bh3 11.0-0+=) 11.c3 (11.de5 Ne5 12.Nf4 Nc4 13.Ne6 Qe6=) 11...Nge7 (11...e4 12.Nd2+=) 12.a4 Na7 (12...Nb8 13.a5+=) 13.Qd3 Kb7 14.a5 (14.0-0 e4 15.Qc2 Bh3=) 14...b5 (14...e4 15.Qc2+=) 15.e4 (15.f3+=) 15...Qc6 (15...c6 16.Qc2+=) 16.Nc5 (16.de5!? fe5 17.0-0-0 Bb4 18.Ned4 ed4 19.Nd4+=) 16...Bc5+= 17.bc5 de4 18.Be4 (18.Qe4?? Bd5 19.Qe3 Bg2–+) 18...Bd5 19.f3 Be4 (19...Rhe8 20.Bd5 Qd5 21.Rb1+=) 20.Qe4 (20.fe4 Rhf8=) 20...Qe4 (20...ed4 21.cd4 (21.Qe7? Rde8 22.Qg7 d3–+) 21...Nd5 22.0-0+=) 21.fe4= Ng6 (21...Rhe8 22.de5 Ng6 23.ef6 gf6+=) 22.0-0 (22.d5 Kc8+=) 22...Rd7 (22...ed4 23.Nd4 Nc6 24.Nf5-/+) 23.Rfd1 (23.d5 Rhd8=) 23...Rhd8 (23...ed4!? 24.cd4 Re7+=) 24.d5= c6 (24...Ka8 25.h3=) 25.d6+= Nc8 (25...h5 26.Rab1+=) 26.Ba3 (26.Kf2 Na7+=) 26...Nh8 (26...Rf8 27.g4+=) 27.Rab1 Ng6 (27...Na7 28.c4+=) 28.Rdc1 (28.c4 Nf8+=) 28...Nf8 29.c4 Na7 30.Nc3 Ne6 31.Kg2 (31.Kf2 Nd4+=) ½–½. Ewert,Jerzy – Wlosek,Maciej, corr 2AMM Poland, 1994.

    5.g3 Nd7 6.Bg2 (6.d4 a5 7.b5 Bd6+=) 6...Nb6 7.d3 Na4 (7...a5 8.b5+=) 8.Bc1 c6 (8...Qd7 9.Ne2+=) 9.Ne2 (9.c4 b5+=) 9...Qd7 (9...a5 10.c3 Nb6 11.Bb2+=) 10.Nbc3 (10.f4 Nb6=) 10...Nc3+= 11.Nc3 h5 (11...a5 12.Na4 Qd8 13.Nc5+=) 12.f3 (12.f4 0-0-0+=) 12...f5 (12...h4 13.Rb1+=) 13.Bb2 Nf6 (13...h4 14.f4+=) 14.Qe2 (14.Ne2 Bd6+=) 14...h4 15.gh4 (15.Na4 Qc7+=) 15...Rh4 (15...0-0-0 16.Na4 d4 17.Nc5 Bc5 18.bc5-/+) 16.Qf2 (16.Na4 Bd6+=) 16...Rh6 17.Qg3 (17.Na4 Qc7+=) 17...Bd6-/+ 18.Na4 (18.Ne2 Qc7-/+) 18...Qc7 (18...b6 19.Rg1-/+ (19.Be5? Nh5 20.Bd6 Ng3 21.Bg3 d4–+)) 19.Nc5 Bc8 20.e4 (20.Qf2 b6 21.Nb3 Be6-/+) 20...f4 (20...a5 21.ef5 Bf5 22.Qg5-/+) 21.Qf2 b6 22.Na4 (22.Nb3 Be6-/+) 22...d4 (better is 22...Be6-/+) 23.c4? (better is 23.c3!? c5 24.Rc1-/+) 23...c5–+ 24.Qd2 (24.Qc2 cb4 25.Qb3 ba3 26.Ba3 Ba3 27.Ra3 Bd7–+) 24...Bd7 25.b5 (25.Qc2 cb4 26.Qb3 a5 27.ab4 Bb4 28.Ke2 Be6–+) 25...a6 26.Bc1 ab5 27.Nb2 b4 (27...bc4 28.dc4 b5 29.Bf1–+) 28.a4 Kf7 (28...Be7 29.Bf1–+) 29.Nd1 (29.Qf2 Be7 30.Qe2 Rah8–+) 29...Ra4 30.Ra4 Ba4 31.Nf2 (31.Qa2 Qc6–+) 31...Bd7 (31...b5 32.cb5 Bb5 33.Bh3–+) 32.h4 (32.Bf1 b5–+) 32...Nh5 (32...Ke7 33.Bb2–+) 33.Ng4 (33.Bh3 Ng3 34.Rh2 Bh3 35.Rh3 Be7–+) 33...Rh8 34.Bh3 Ng3 35.Rg1 (35.Rh2 Rh4 36.Qc2 Ke7–+) 35...Rh4 36.Rg3 (36.Bf1 Ke8–+) 36...fg3 37.Qg2 (37.Bg2 Qd8–+) 37...Bg4 (better is 37...Qa7 38.Qg3 Rh5 39.Nf2 Bh3 40.Nh3–+) 38.fg4 Qe7 (38...Qd7 39.Bg5 Rh8 40.Qg3–+) 39.Qg3 g5 40.Qf2 (40.Bg2 Qf6–+) 40...Qf6 41.Qg3 Rh8 42.Bg2 (42.Bf1 Ra8 43.Qh2 b3–+) 42...Ke6 (42...Ra8 43.Bf3–+) 43.Ke2 (43.Bf1 Be7–+) 43...Ra8 (better is 43...b3–+) 44.Qh3 (44.Kd1 b3 45.Bb2 Qf4–+) 44...b3 (44...Ra2 45.Kd1 Qf2 46.Qf3 Qc2 47.Ke1 Qc1 48.Qd1 Qe3 49.Qe2 Qe2) 45.Qh7 (45.Qf3 Ra2 46.Ke1–+) 45...Ra2 46.Kd1 Qf7 (better is 46...Rg2 47.Qf5 Qf5 48.gf5 Kf6–+) 47.Qh8 (47.Qf5 Qf5 48.ef5 Kf6 49.Be4–+) 47...Bf8 (47...Kd7 48.Bg5 Qf2 49.Qh7 Kc6 50.Qb7 Kb7 51.Be3 Qe2 52.Kc1 Qc2) 48.Bg5 Rg2 0–1. Quast,Michael (2215) – Schmidt,Ruediger (2190), Bayern–chI Bank Hofmann 2nd, 1998.

    5.g3 Nh6 6.Bg2 Be7 7.d4 0-0 8.de5= fe5 9.Be5 Ng4 10.Bh3 Qd7 11.Bg4 Bg4 12.f3 Be6 13.Qd3 c5 14.bc5= Bc5 15.Bd4 Bf5 16.Qd2 Bd4 17.ed4 Qe7 18.Kf2 Nd7=+ 19.Nc3 Nb6 20.Nge2 Nc4 21.Qc1 Qf7 22.Nf4 Rfe8 23.Re1 Re1 24.Qe1 Re8 25.Qc1 Ne3 26.Qd2 Nc4 27.Qc1=+ Qf6 28.Qd1 Ne3 29.Qd2 Qh6 30.Kg1 Nc2 31.Rc1 Na3 32.Qb2 Qd6 33.Qb7+= Nc2 34.Nb5 Qd7 35.Qd7+/– Bd7 36.Rc2 Bb5 37.Nd5 a5 38.Ra2 Rd8 39.Ne7 Kf7+= 40.Ra5 Ke7 41.Rb5 Rd4 42.Rb2 Kf6 43.h4 Rd3 44.Kf2 Ra3 45.g4 Ra6 46.Rb3 g6 47.g5+– Kg7 48.Rb7 Kg8 49.Kg3 Ra1 50.Rd7 Rb1 51.Re7 Rg1 52.Kh2 Ra1 53.Rc7 Ra2 54.Kg3 Ra1 55.Rb7 Rh1 56.Ra7 Rb1 57.Kg2 Rb4 58.Kh3 Rb3 59.Ra8 Kg7+/– 60.Kg4 Rb4 61.Kg3 Rb7 62.Ra6 Rc7 63.Rb6 Kf7 64.Rf6 Kg7 65.h5 Rc4 66.h6+– Kg8 67.Ra6 Rc7 68.f4 Kf7 69.Kf3+– Rd7 70.Ke4 Rb7 71.Ke5 Ke7 72.Ra8 Rb5 73.Ke4 Rb4 74.Kd5 Rb5 75.Kc6 Rf5 76.Ra7 Ke6 77.Rh7 Rf4 78.Rg7 Rc4 79.Kb5 Rh4 80.Rg6 Kf7 81.Rg7 Kf8 82.Kc5 Rh1 83.Kd4 Rd1 84.Ke5 Rc1 85.g6 Rc8 86.Rf7 Kg8 87.Kf6 Ra8 88.h7 Kh8 89.Kg5 Ra5 90.Rf5 Rf5 91.Kf5 Kg7 92.h8R Kh8 93.Kf6 Kg8 94.g7 Kh7 95.Kf7 Kh6 96.g8Q Kh5 97.Qg3 Kh6 98.Qh4# 1–0. Aegis (2820) – Psilocybe (2785), ICC, 2001.

    5.g4 a5 6.b5 +=.

    5.g4 Bd6 6.Bg2 (6.Nc3 a5=) 6...Ne7 (6...a5 7.c4=) 7.c4 c6 8.cd5 Nd5 9.Nc3 Nc3 10.Bc3 Nd7 11.h4 Nb6 (11...0-0 12.Qc2+=) 12.Nh3 White intends g5 (12.g5!?= should be examined more closely) 12...Qd7 13.g5 0-0-0 14.a4 Nd5 15.b5 Nc3 16.dc3 c5 17.a5 Be7 White king safety dropped 18.Qc1? (18.Qd7 Bd7 19.c4 Be6-/+) 18...Bd5 (18...Kb8 19.b6 Bd5 20.Bd5 Qd5 21.ba7 Ka7 22.0-0+=) 19.e4? (19.Bd5!? Qd5 20.0-0-/+) 19...Bc4 (better is 19...Qg4 20.Nf4 Kb8-/+) 20.b6?? White has lost his nerve. .. understandable when you consider his position (20.Bf1 Bf1 21.Kf1 Qb5 22.c4 Qc6–+) 20...Qd3 (20...Qg4 21.Nf4 Kb8 (21...ef4?? 22.Bh3 Qh3 23.Rh3 ab6 24.ab6+–) 22.ba7 Ka7–+) 21.Ng1 (21.Qe3 ab6 22.Qd3 Bd3 23.ab6 Kd7+=) 21...a6 22.Rh3 Qd6 23.Ne2? (23.Bf1!? Bf7 24.gf6 Bf6 25.Nf3-/+) 23...Rhf8 (23...Kb8!? 24.Ng3 g6 25.Ne2–+) 24.Ng3-/+ g6 25.Bf1 Qe6 (better is 25...Bg8 26.Be2 Kb8–+) 26.Rh1? (26.Rh2 Qg8-/+) 26...Bf1?? hands over the advantage to the opponent (26...fg5 27.hg5 Qf7 28.Qe3-/+) 27.Kf1 (27.Nf1 Qg4 28.Qe3 fg5 29.hg5 Rf4–+) 27...Qg4 (27...fg5 28.h5 Qg4–+) 28.Qe3?? terrible, but the game is lost in any case (28.Kg1 fg5 29.hg5 Rf2 30.Kf2–+) 28...fg5–+ 29.h5 (29.Ne2 Rf3 30.Qc1 Qe4–+) 29...Rf3 30.Qe2 (30.Qe1 does not save the day 30...Qg3 31.Ra2 gh5 32.Rh5 Rf7–+) 30...Qg3 31.hg6 hg6 32.Rh7 Rf2 Double attack: e4/f1. 33.Qf2 Black has a new passed pawn: g5 33...Rf8 (33...Qc3!? 34.Qe1 Rd2-/+) 34.Rf7= Rf7 Black has a mate threat (34...Qh3 35.Ke2 Rd8 36.Qe3=) 35.Qf7 Qf4 (35...Qd3 36.Kf2 Qd2 37.Kg1 Qe3 38.Kh2 Qd2 39.Kh1+=) 36.Qf4+= gf4 (36...ef4 37.Rd1+=) 37.Rd1+/– g5 38.Rd5 White threatens to win material: Rd5xe5 38...Bf6? (better is 38...c4+= and Black hangs on) 39.Rc5+– Kb8 40.Rc7 g4 (40...Bd8 41.Rg7+–) 41.Rf7 Bd8 42.Rf5 Kc8 43.Re5 f3 44.Rf5 Kd7 45.Rf4 Kc6 (45...Kd6+–) 46.Rg4 Kb5 47.Rg8 Bf6 (47...Bh4 is not much help 48.Rg7 Ka5 49.Rb7+–) 48.e5! Decoy: e5 48...Bh4 (48...Be5 49.Rg5 Decoy) 49.Rh8 Be7 50.Rh3 (50.Rh7 might be the shorter path 50...Ba3+–) 50...Bc5 (50...Kc6 does not solve anything 51.Rh7 Kd7 52.Kf2+–) 51.e6 Ka5 (51...Kc6 the last chance for counterplay 52.Rf3 Be7+–) 52.Rh5 (52.Rh5 Kb6 53.Rc5 Kc5 54.e7+–) 1–0. Campos Calvo_Sotelo,Juan – Sanchez Crespo,Ignacio, Vila de Padron op 1st, 2000. (=1.a3 e5 2.b4 d5 3.e3 Be6 4.Bb2 f6)

    5.h3 a6 6.Be2 Bd6 7.Nf3 Ne7 8.0-0 0-0 9.d3 Nbc6 (9...Nd7 10.c4 c5 11.bc5 Nc5 12.d4=) 10.Nbd2= Nf5 (10...b5 11.c4 e4 12.c5 ef3 13.Nf3+=) 11.Rc1 (11.c4 dc4 12.dc4 Qe8+=) 11...Re8 (11...Be7 12.c4 dc4 13.dc4=) 12.c4+= Nfe7?? (better is 12...dc4 13.dc4 Bf8+=) 13.c5+– e4 (13...Rc8+–) 14.cd6 ef3 15.de7 fe2 (15...Qd6 16.Nf3 Re7 17.Nd4+–) 16.ed8Q (16.ed8R ef1Q 17.Kf1 Red8+–) 16...ed1Q (16...ef1R 17.Qf1 Rad8 18.Nb3+–) 17.Qe8!! (17.Rfd1?! Rad8 18.Nb3 Bc8+=) 17...Re8 18.Rfd1 Bf5 (18...Re7 19.Nb3+–) 19.Nf3 (19.Nb3 Bc8+–) 19...Re7 (19...h6 20.Rc5 Rd8 21.g4+–) 20.Nd4 Bd7 21.Nc6 Bc6 22.Re1 Kf7 23.Rc5 Kg6 (23...Ke6 24.f3+–) 24.Rec1 f5 (24...Re6 25.a4! Ba4 26.Rc7+–) 25.Rc6 bc6 26.Rc6 Kg5 (26...Kf7 27.Ra6 f4 28.ef4 Re1 29.Kh2+–) 27.Ra6 f4 (27...h6 28.f4 Kh5 29.Kf2+–) 28.ef4 Kf4 29.Kf1 Kf5 (29...g6 30.Rc6 Re8 31.Rc7+–) 30.Rc6 g6 (30...d4 31.Bd4 h5 32.Rc5 Kg6 33.Be5+–) 31.a4 Re6 (31...d4 32.a5 Ke5 33.a6+–) 32.Rc7 (32.g4 Kf4 33.Re6 Kg5 34.Kg2 d4 35.Bd4 Kh6 36.Kg3 c6 37.Rc6 Kg5 38.Be3) 32...Rb6 33.b5 (33.Rf7 Ke6 34.Rf6 Kd7 35.Rb6 Kc8 36.a5 Kc7 37.Be5 Kd8 38.a6 h6 39.a7 Kd7 40.a8Q d4 41.Bf6 g5 42.Qc6) 33...h5 34.Rc6 Rc6 35.bc6 Ke6 36.c7 Kd7 37.Be5 Kc8 (37...h4 38.a5 Ke8 39.c8Q Ke7 40.a6 g5 41.a7 Kf7 42.Qf5 Ke7 43.a8Q g4 44.Qaf8) 38.a5 Kb7 39.c8Q! Kc8 40.a6 h4 41.d4 g5 (41...Kd7 42.a7 Ke7 43.a8Q g5 44.f4 gf4 45.Qb7 Ke6 46.Ke2 f3 47.Kf3 Kf5 48.Qf7 Kg5 49.Bf4) 42.f3 Kd7 43.a7 Ke6 (43...Kc6 44.a8Q Kb5 45.Qd5 Kb4 46.Ke2 Ka3 47.Qb5 g4 48.Kd2 gf3 49.Kc3 fg2 50.Qb3) 44.a8Q Kf5 (44...Ke7 45.Qb7 Ke6 46.Qh7 g4 47.f4 gh3 48.f5) 45.Qc6 g4 46.hg4 (46.Qf6) 46...Kg5 47.Qf6 1–0. Tsirekidze,Barbare – Kaliontzaki,Argyro Evanthia, European Youth Chess Championship G10, 2016.

    5.h3 Bd6 6.Nf3 Ne7 7.d3 a6 (7...0-0 8.c4 dc4 9.dc4+=) 8.Nbd2 (8.c4 dc4 9.dc4 b6=) 8...Nbc6 9.Be2 0-0 10.c4 dc4 11.dc4 Ng6 12.Qc2 Re8 13.Rd1 Bf8 14.Bd3 Bf7 15.Be4 Be7 16.Bc6 bc6 17.c5 Qb8 18.0-0 a5 19.Bc3 ab4 20.ab4 Ra2 21.Qc1 (21.Qe4 Bd5 22.Qg4 Qc8=) 21...Qa7 22.Nb1 Ra8 23.Rd2 Rd2 24.Nbd2 Qa3 25.Qa1 Bf8 26.Bb2 Qa4 27.Qa4 Ra4 28.Bc3 Ra3 29.Nb1 Ra4 30.Rd1 Bd5 31.Nfd2 e4 32.Nf1 Ne5 33.Be5 fe5 34.Nc3 Rb4 35.Nd5 cd5 36.Rd5 Rb5 37.Re5 Rc5 38.Rc5 Bc5 39.Nd2 Bb6 40.Ne4 Kf7 41.Kf1 h6 42.Ke2 Ke6 43.Kd3 Kd5 44.Ng3 g6 45.Ne2 g5 46.Nc3 Ke5 47.Na4 Ba7 48.Nb2 h5 49.Nc4 Kf5+/– 50.Nd2 h4 51.Nf3 Kf6 52.Nd4 Kg6 53.Nc6 Bb6 54.Ke4 Kf6 55.f4 gf4+/– 56.ef4 Bf2 57.Kf3 Bg3 58.Kg4 Ke6? 59.Nd4+– Kf6 60.Ne2 Bf2 61.Nc3 Kg6 62.Ne4 Be1 63.f5 Kf7 64.Kf4 Ke7 65.Ke5 Bb4 66.Kd5 c5 67.Kc4 Kf7 68.Kd3 Kg7 69.Nd6 Kf6 70.Ke4 Ke7 71.Nc4 Kf6? 72.Kf4 Be1+/– 73.Ne3?? Bd2–+ 74.Ke4 Be3 75.Ke3 Kf5 76.Kd3 Kf4 77.Kc4 Kg3 78.Kc5 Kg2 0–1. Pozanco Romasanta,Marc (1725) – Pedrera Busselo,Asier, ESP–ch U14 Padron, 2008.

    5.Nh3 Bd6 6.c4 c6 7.cd5 cd5 8.f4 Nd7 9.Nc3 a6 (9...a5 10.ba5 Ra5 11.Nb5=) 10.Bd3 (10.Rc1 Rc8=) 10...Ne7=+ 11.fe5 Ne5 12.Bc2 (12.Nf4 Nd3 13.Nd3 Bf5=) 12...Bh3 (12...Bg4!? 13.Ne2 Rc8-/+) 13.Qh5= g6 14.Qh3 Qd7 (14...Nc4 15.Bc1=) 15.Qd7 Kd7 16.0-0 Nc4 17.Bc1 f5 18.Bb3 b5 19.d3 Nb6 (better 19...Be5!? 20.d4 Bd6-/+) 20.Bb2= Exerts pressure on the isolated pawn 20...Rhe8 21.Ne2 (21.g4!?=) 21...Nc6=+ 22.Rf3 Ne5 (22...a5!? 23.ba5 Na5=+) 23.Rh3= Nd3 24.Rh7 Re7 25.Re7 Ke7 (worse 25...Be7 26.Bd4 Nc4 27.Rd1+/-) 26.Bd4 Nc4 27.Nc3 (27.Rd1 Ndb2 28.Bb2 Nb2 29.Rd5 Nc4+=) 27...Ke6 28.Nd5 (28.Rd1!? Ndb2 29.Rb1=+) 28...Kd5-/+ 29.Rd1 Nde5 (better 29...Nb4!? 30.Bc3 Kc6 31.Bc4 bc4 32.ab4 Re8-/+) 30.Bc5= Kc6 31.Bd6 Rd8 32.Be5 Rd1 33.Bd1 Ne5 34.Bb3 Ng4 35.Bf7 g5 36.g3 Ne3 37.h4 gh4 38.gh4 Kd6 39.h5 Ke7 40.Bb3 Kf6 41.Kf2 Ng4 42.Kg3 Kg5 43.Bd5 (43.Be6 A) 43...Kh5? 44.Kf4+- (44.Bf5?! Ne5+=); B) 43...Ne5 44.Bc8 B1) 44...Kh5? 45.Ba6 (45.Bf5?! Nc4=) 45...Kg5 46.Bb5+-; B2) 44...Nc4=) 43...Ne3 (worse 43...Kh5 44.Kf4 Nh6 45.Bb7+=) 44.Bb7 Nc2 45.h6 Kh6 46.Kf4 Kg6 47.Ba6 Na3 48.Bc8 Attacks the isolani on f5 48...Kf6 49.Bf5 Ke7 50.Bd3 Kd6 51.Ke4 Nc4 52.Bc4 bc4 53.Kd4 Kc6 54.Kc4 Kb6 55.Kc3 Kb5 56.Kb3 Kb6 57.Kc4 Kc6 58.Kc3 Kb6 59.Kb3 Kc6 60.Ka4 Kb6 61.b5 Kb7 62.Ka5 Ka7 63.Kb4 Kb7 64.Kc4 1-0. FeegLood (2485) - UPEA (2355), Time forfeit, lichess.org, 2015.

    5.Nh3 Nd7 6.f4 Bd6 7.Bd3 Ne7 8.0-0 0-0 (8...e4 9.Be2=+) 9.fe5= Ne5 (9...fe5 10.Bh7 Kh7 11.Ng5 Kg8 12.Ne6 Rf1 13.Kf1=) 10.Nf4 Bf7 (worse 10...Nd3 11.Ne6 (worse 11.Nd3 Qd7=+) 11...Qc8 12.Qg4+= (worse 12.Nf8 Nb2 13.Qc1 Nc4=+)) 11.Be2 N7g6 12.Nh5 a5 13.b5 Re8 14.Nc3 Qd7 (14...Nc4 15.Bc4 dc4 16.Qg4=+) 15.Ng3 (15.Rf6 Nc4 16.Bc4 dc4+=) 15...Rad8 16.Nf5 Nc4 17.Bc4 dc4 18.a4 Be5 19.Rf2 (19.Qf3 Be6 20.Rad1 Bf5 21.Qf5 Qf5 22.Rf5 Rd7=+) 19...Be6-/+ 20.Ng3 (20.g4 c6-/+) 20...Bg3 21.hg3 Ne5 22.Ne4 (22.Qh5 Ng4 23.Re2 Bf7-+) 22...b6 (22...Ng4!? 23.Rf1-+) 23.Be5-/+ fe5 (23...Bg4 24.Qf1 Re5 25.Nc3-/+) 24.Qh5=+ Bf7 25.Qg5 (25.Qh4!? Bg6 26.Nc3=+) 25...Bg6-/+ 26.Nc3 (26.Qh4!?-/+) 26...Bc2-+ 27.e4 (27.Rc1 Bd3-+) 27...h6 28.Qg6 Re6 (28...Qd4!? 29.Qf7 Kh8 30.Kh2 Be4 31.Ne4 Qa1 32.Ng5-+) 29.Qf5 Rf6 30.Qd7 (30.Qe5 Rf2 31.Kf2 Qd2 32.Kg1-+) 30...Rd7 31.Rf6 gf6 32.Nd5 (32.Rf1 Kf7-+) 32...Kg7 33.Rf1 f5 (33...Ba4!? 34.Nf6 Rd2 35.Ne8 Kg8 36.Nf6 Kh8 37.Nd5-+) 34.Ne3 Be4 35.Nc4 Kf6 36.Re1 Rd4 37.Rc1 Bd5 Black plans f4 (37...Ke6 38.Ne3 Rd2 39.Rc7-+) 38.Ne3 Rd2 39.Rc7 Be4 40.Rc4 (40.Ra7 Ra2 41.Ra6 Ra4 42.Rb6 Kg5-+) 40...Ra2 41.g4 f4 (41...Re2!? 42.Rc3 f4 43.Nc4 Rg2 44.Kf1 Rg4 45.Nb6-+) 42.Re4 fe3 43.Kh2? (43.Re3 Ra1 44.Kf2 Ra4 45.Rc3-+) 43...e2 44.Kg3 Ra4!! 45.Re2 (45.Ra4 e1Q Combination) 45...Rb4 46.Kh4 Kg6 (better 46...Rb5 47.Kh5 Kg7-+) 47.Re5-/+ a4 (better 47...Kf6 48.Rf5 Ke7 49.Re5 Kd6-/+) 48.Re6+= Kf7 49.Rb6 a3 50.Kh5?? (better 50.Ra6!? Rb5 51.Ra3+=) 50...a2 (50...Ra4 51.g5 hg5 52.Kg5 a2 53.Rf6 Ke7-+) 51.Ra6 (51.Rb7 Ke6 52.Ra7 Rb5 53.Kh6 Rb2=) 51...Rb5-/+ 52.Kh6? (better 52.Kh4 Rb2 53.Kh5-/+) 52...Rb2?? (52...Rb6! 53.Rb6 a1Q 54.Rb7 Ke6 55.Rb6 Kd5 56.g5-+) 53.g5?? (53.Ra7 Ke6=) 53...Rg2?? (better 53...Rb6! 54.Rb6 a1Q 55.g6 Kf8 56.Rb8 Ke7 57.Rb7 Ke8-+) 54.Ra7= Kf8 55.Kg6 Rf2 56.Ra8 (56.Kh6 Rh2 57.Kg6 Re2=) 56...Ke7 57.Kh6 Rh2 58.Kg7 Rg2 59.g6 Ke6 60.Ra5 Ke7 61.Kh7 Kd6 62.g7 Rh2 63.Kg8 1-0. FeegLood (2490) - UPEA (2350), Time forfeit, lichess.org, 2015.

    5.h4 Qd7 (5...a5 6.b5=+) 6.h5 Nc6 7.d4 ed4 8.ed4 Nge7 9.Nc3 Nf5 10.Na4 (better 10.Nge2!?=+) 10...Ncd4-/+ 11.Nc5 Bc5 12.bc5 Nc6 13.Bb5 0-0 14.Ne2 Bf7 (14...Qe7 15.Bc6 bc6 16.0-0-+) 15.h6 Nh6 16.Rh6 (better 16.Bf6!? Rae8 17.Bg5-+) 16...gh6 17.Qd2 (17.Bf6 Rae8-+) 17...Bg6 (17...Qe7!? 18.Qf4 Bg6 19.Rd1-+) 18.0-0-0 Rfe8 (18...a6!? 19.Bc4 Ne7 20.Nf4-+) 19.Nf4-/+ Rad8 (19...Bf7!?-/+) 20.Nd5 (better 20.Bf6 Bf7 21.Bd8 Rd8 22.Rh1=) 20...Qf5?? (20...Kf7 21.Bc4 Qg4=) 21.Nf6+/- Qf6 22.Bf6 Rd2 23.Rd2 Kf7 24.Bc3 Bf5 25.f3 (25.Rd5 Be4 26.Bc6 bc6 27.Rd7 Ke6 28.Rc7 Bg2 29.Ra7 Be4+/-) 25...Be6 (25...Re3 26.Kb2+/-) 26.Kb2 Rd8 27.Bd3 (27.Bc6 Rd2 28.Bd2 bc6 29.Kc3+/-) 27...Ne7? (27...Rd5 28.g4 h5 29.Rh2 Rc5 30.gh5+/-) 28.Be5 (28.Bg6 hg6 29.Rd8 h5+-) 28...Bf5 (28...Rd7!?+/-) 29.Bc4 (29.Bc7 Rc8 30.Bd6 Bd3 31.Rd3 Nc6+-) 29...Ke8 30.Bf7! Kf7 31.Rd8 Nc6 32.Ra8 (better 32.Bc7!? Nd8 33.Bd8+/-) 32...Ne5= 33.Ra7 Bc8 34.Ra8 Bd7 35.Rh8 Kg7 36.Rb8 Bc6 37.Kc3 h5 (37...Ng6 38.Rd8=+) 38.a4 (38.Rc8 Ng6 39.Rc7 Kf6=) 38...h4 (38...Ng6=+) 39.a5 (39.Rc8 Nf3 40.Rc7 Kg6 41.Rc6 bc6=+) 39...Ng6 (39...Nf3 40.a6 ba6 41.gf3-/+) 40.Rd8 (better 40.Rc8!? Ne7 41.Rc7=) 40...Nf4-/+ 41.Rd2 Kf6 42.Kd4 Ne6 43.Kc4 h6 44.Kb4 (44.Kd3 Nc5 45.Ke3 Ne6-/+) 44...Ke5 45.c3 Kf4 (45...Nf4 46.Ra2-+) 46.Re2 Kf5 47.Rd2 h3! 48.gh3 Bf3?? (better 48...h5-/+) 49.Rf2+- Kf4 50.c6! bc6 51.a6 c5 52.Kb5 1-0. psv2398 (2500) - Aloserisborn (2490), Rated Bullet game, lichess.org, 2016.

    5.Bb5 c6

    6.Ba4 Nd7 7.d3 Ne7 8.Bb3 Ng6 9.c4 Be7 10.h4 h5 11.Nc3 dc4 12.Bc4 Bc4 13.dc4 Nb6 (13...f5 14.e4 fe4 15.Ne4=) 14.c5 (14.Qc2 Rh6 15.c5 Nc4=) 14...Qd1 15.Rd1 Nc4 16.Bc1 f5 17.g3 (17.e4 b6 (worse is 17...Nh4 18.g3+=) 18.Nf3 bc5 19.bc5 f4+=) 17...Bf6 (17...e4 18.Nge2-/+) 18.Nge2 (better is 18.e4!?=) 18...e4-/+ 19.Nd4 Nge5 20.Ke2 Nd3 21.Nb1 g6 22.Ne6 Kf7 23.Nf4 Nce5 24.Bd2 a5 25.ba5 (better is 25.Bc3!?+=) 25...Nc5–+ 26.Bc3 Ned3 27.Bb4 Nf4 28.ef4 Nd3 29.Ke3 (29.Rd2 c5 30.Bc3 Rhe8–+) 29...c5 30.Bd2?? (30.Bc3 Bd4! 31.Ke2–+) 30...Bd4 31.Ke2 Nf2 (31...Bf2?! 32.Bc3 Bg3 33.Bh8 Nf4 34.Kf1 Rh8 35.Nc3–+) 32.Rhf1 Nd1 33.Rd1 Rhd8 34.a4 Ke6 35.Na3 Kd5 36.Rb1 Rd7 37.Rb6 Ra6 38.Rb5 Rc6 Black plans c4 39.Nc2 Ke6 40.Be1 Bf6 41.Bf2 c4 42.Bc5 c3 43.Be3 Rc4 44.Rb6 Kf7 (better is 44...Rd6!? 45.Rb4 Rb4 46.Nb4–+) 45.a6 ba6 46.Ra6 Rb7 47.Bb6 (47.Kd1–+) 47...Rc6 48.a5 Rd6 49.Nb4 Rd2 50.Ke1 Rbd7 51.Ra7 Ra7 52.Ba7 Rb2 (better is 52...Bd4!? 53.Bd4 Rd4 54.Nc2–+) 53.Bc5 c2 (53...c2 54.Kd2 e3 55.Be3 Rb4 56.Kc2 Rb2 57.Kc1 Ra2–+) 0–1. Airapetian,Valentin (1805) – Rumiantseva,Ksenia (1890), Sochi RUS, Doroshkevich Mem, 2012.

    6.Ba4 Nd7 7.Nf3 Bd6 (7...a5 8.b5 Nc5 9.Nc3-/+) 8.Bb3 Bf7 (8...Qe7 9.Nc3+=) 9.d3 (9.Nc3 Ne7+=) 9...Ne7 (9...a5 10.Nbd2+=) 10.Nbd2 (10.c4 b6=) 10...0-0 (10...a5 11.0-0+=) 11.c4 f5 (11...c5 12.e4 d4 13.b5+=) 12.e4 (12.Ng5 Qe8 13.Qc2 Bh5=) 12...fe4 (12...Ng6 13.g3 fe4 14.de4=) 13.de4 d4? (better is 13...a5!? 14.0-0 ab4 15.ab4 Ra1 16.Ba1 Bb4 17.cd5 cd5=) 14.c5+/– Bc7 15.Bf7 Rf7 16.0-0?? (better is 16.Ng5 Qe8 17.Qb3+/–) 16...Ng6= 17.Nb3 (17.g3 h6+=) 17...b6 (17...Ndf8 18.g3-/+) 18.cb6 (18.Bc1 bc5 19.Nc5 Nc5 20.bc5 Rb8+=) 18...ab6 19.Nbd2 (19.Qc2 Qf6+=) 19...c5 20.Qb3 Qe7 (20...Rb8 21.a4-/+) 21.Qd5 (21.g3 Ngf8-/+) 21...Raf8-/+ 22.Rac1 (22.Qc6 Qf6 23.Qb5-/+ (23.Qc7? Nb8 24.Qf7 Rf7–+)) 22...b5 (22...Nf4 23.Qc4-/+) 23.bc5 (23.Qc6!? Bd6 24.Qb5 cb4 25.ab4 Bb4 26.Rc7 Bd2 27.Nd2+=) 23...Nf4-/+ 24.Qb3 (24.Qc6 Ne2 25.Kh1 Nc1 26.Rc1 Nf6-/+) 24...Nc5 (24...Ne2 25.Kh1 Nc1 26.Rc1 Nc5 27.Qb5–+) 25.Qb5? (better is 25.Rc5 Qc5 26.Ng5-/+) 25...Ncd3–+ 26.Rb1?? (26.g3 Rb8 27.Qa6 Ne2 28.Kg2 Ndc1 29.Bc1–+) 26...Rb8 27.Qa6 (27.Qb8 Bb8 28.Bd4 Ne2 (worse is 28...ed4 29.Rb8 Rf8 30.Rf8 Kf8 31.g3 Ne2 32.Kg2–+) 29.Kh1 Nd4 30.Rb8 Rf8 31.Rf8 Kf8 32.Nd4 ed4–+) 27...Nb2 (better is 27...Rb6 28.Qc8 Rf8 29.Qg4–+) 28.Rb2 (28.Nc4 Nbd3 29.Rb8 Bb8 30.Ncd2–+) 28...Rb2 29.a4 (29.g3 Rf6 30.Qc4 Ne6–+) 29...h6 (29...Rb6 30.Qc4–+) 30.g3 Qe6 (30...Rb6 31.Qc4 Rb4 32.Qa6–+) 31.Qe6 Ne6 32.Nc4 Ra2 (32...Ra2 33.Nfe5 Be5 34.Ne5 Ra7–+) 0–1. Sapareva,Magdalena (1620) – Gelemerov,Yane (2100), 123rd MGU Open, 2014.

    5.Nc3 a5

    6.b5 Bd6

    7.a4 Ne7 8.g3 0-0 9.Bg2 Nd7 10.Qe2 Nb6 11.Nf3 Nc4 12.Bc1 e4 13.Nd4 Bf7 14.d3 ed3 15.cd3 Bb4 16.Qc2 Ne5 17.0-0 Bg6 18.Rd1 Re8 19.Bb2 Rc8 20.Na2 Bd6 21.Bf1 c5 22.Ne6 Qb6 23.Bg2 c4?? 24.e4?? cd3 25.Qb3 Be4 26.Be4+/– de4? 27.Be5+– Be5?? 28.Nd8 Nd5 29.Qd5 Kh8 30.Nf7 Kg8 31.Nh6 Kh8 32.Qg8!! Rg8 33.Nf7# 1–0. NN – SuperConstellation4, 1987.

    7.Qh5 g6

    8.Qd1 a4 A) 9.Be2 Nd7 (9...Ne7 10.Nf3 0-0 11.h4 h5 12.0-0 Nd7+=; 9...Nh6 10.d4 e4 11.Qd2 f5 12.Nh3 g5+=; 9...h6 10.d4 Ne7 11.e4 c5 12.ed5 Nd5=; 9...Qd7 10.d4 Ne7 11.de5 fe5 12.Nf3 0-0=) 10.Nf3 Ne7 11.Rb1 Nb6 12.0-0 Qd7+=; B) 9.Nf3 g5 (9...Nd7 10.Be2 Ne7 11.0-0 Nb6 12.d4 e4+=; 9...Nh6 10.Be2 0-0 11.0-0 Nd7 12.Re1 Nb6+=; 9...Ne7 10.Be2 0-0 11.0-0 Nd7 12.d3 Nb6=; 9...Kd7 10.e4 d4 11.Nb1 c5 12.c3 Bb3=) 10.Be2 g4 11.Ng1 f5 12.Bd3 Nd7+=.

    8.Qd1 Ra7 A) 9.Nf3 Nd7 (9...Ne7 10.Be2 0-0 11.0-0 Nd7 12.Rb1 Nb6=; 9...c5 10.Be2 Ne7 11.0-0 Nd7 12.d3 0-0=; 9...h6 10.e4 d4 11.b6 cb6 12.Nb5 Ra8=; 9...Nh6 10.Be2 0-0 11.0-0 Nd7 12.d3 a4=) 10.Be2 Ne7 11.0-0 c5 12.bc6 bc6=; B) 9.Be2 Nd7 (9...Ne7 10.Nf3 0-0 11.Rb1 Nd7 12.d3 Nc8=; 9...Nh6 10.d4 e4 11.b6 cb6 12.Nb5 Ra8=; 9...Qd7 10.d4 e4 11.f3 ef3 12.Nf3 f5+=; 9...h6 10.d4 e4 11.f3 f5 12.fe4 Qh4=) 10.Nf3 Ne7 11.0-0 c5 12.bc6 bc6=; C) 9.d4 e4 (9...Ra8 10.Nge2 e4 11.Nf4 Bf4 12.ef4 Qd6=; 9...Ne7 10.e4 c6 11.Nf3 0-0 12.Be2 Ra8=; 9...c6 10.e4 Ne7 11.Nf3 Nd7 12.Be2 0-0=) 10.b6 cb6 11.f3 ef3 12.Nf3 Ne7=.

    8.Qd1 c5 A) 9.bc6 bc6 (9...Nc6 10.Nb5 Be7 11.f4 Nh6 12.Nf3 ef4=) 10.Nf3 Nd7 11.Rb1 Rb8 12.Be2 Ne7+=; B) 9.Qf3 e4 10.Qd1 Nd7 11.d3 Be5 12.de4 de4=.

    8.Qd1 Qd7 A) 9.Nf3 Ne7 (9...a4 10.Be2 Nh6 11.0-0 0-0 12.Rb1 Qe7=; 9...Qf7 10.e4 d4 11.Nb1 c5 12.bc6 bc6=; 9...Qg7 10.b6 cb6 11.Nb5 Bf8 12.d4 e4=) 10.Be2 0-0 11.0-0 a4 12.Rb1 Nc8=; B) 9.Qf3 Qf7 (9...c6 10.e4 d4 11.Na4 Ra7 12.c4 f5=; 9...e4 10.Qd1 Ne7 11.d3 Be5 12.de4 de4=) 10.e4 d4 11.Nd1 Nd7 12.c3 Nc5+=; C) 9.Rb1 h6 (9...Ne7 10.Nf3 0-0 11.Be2 Nc8 12.0-0 Nb6=; 9...Qe7 10.Ra1 Nd7 11.Be2 0-0-0 12.d4 Nb6+=; 9...a4 10.d4 e4 11.Nge2 Ne7 12.Nf4 h6=) 10.Nf3 Qe7 11.Qc1 Nd7 12.Be2 Nb6+=; D) 9.Be2 a4 (9...h6 10.d4 e4 11.f3 f5 12.fe4 fe4=; 9...c5 10.bc6 Nc6 11.Nb5 Nge7 12.Rb1 Bb8=; 9...Ne7 10.Nf3 0-0 11.0-0 a4 12.Re1 c5=) 10.Nf3 Nh6 11.0-0 0-0 12.Re1 Qf7=.

    8.Qd1 Nd7 9.Nf3 Nb6 (9...g5 10.h3 Qe7 11.Be2 0-0-0 12.e4 d4=; 9...Ne7 10.Be2 0-0 11.Rb1 Nb6 12.0-0 Qd7=; 9...c5 10.bc6 bc6 11.Be2 Rb8 12.Rb1 Qe7+=) 10.Be2 Ne7 11.0-0 a4 12.d4 e4+=.

    8.Qd1 Qe7 A) 9.Be2 Nd7 (9...c5 10.Bf3 Qf7 11.Bg4 Ne7 12.Be6 Qe6=; 9...h6 10.d4 e4 11.Nd5 Bd5 12.c4 Be6=) 10.Nf3 Nb6 11.Qc1 0-0-0 12.e4 d4+=; B) 9.e4 d4 10.Nd5 Qf7 11.Bc4 Nd7 12.b6 cb6+=; C) 9.Nf3 Nd7 (9...c5 10.Be2 Nh6 11.d3 0-0 12.0-0 Nd7=) 10.Be2 0-0-0 11.0-0 Nb6 12.Ne1 a4+=.

    8.Qd1 Ne7 9.Nf3 (9.Be2 Nd7 (9...c5 10.bc6 bc6 11.Rb1 Nd7 12.Nf3 Rb8=; 9...0-0 10.Nf3 c5 11.bc6 bc6 12.Rb1 Nd7=; 9...Nf5 10.e4 de4 11.Ne4 Nh4 12.Nd6 Qd6=; 9...a4 10.Nf3 0-0 11.Rb1 Nc8 12.Ra1 Nb6=) 10.Nf3 Nb6 11.0-0 0-0 12.d3 a4+=; 9.d4 0-0 (9...e4 10.f3 ef3 11.Nf3 0-0 12.Bd3 Nd7=; 9...h6 10.de5 fe5 11.Nf3 0-0 12.Be2 c5=; 9...Nd7 10.de5 fe5 11.Nf3 Nb6 12.Be2 h6=) 10.de5 fe5 11.Nf3 h6 12.Be2 c5=) 9...c5 (9...0-0 10.Be2 Nd7 11.0-0 Nb6 12.d3 a4+=; 9...Nd7 10.Be2 0-0 11.Rb1 Nc8 12.0-0 Ncb6+=; 9...a4 10.Be2 0-0 11.0-0 Nd7 12.Rb1 Nb6=; 9...g5 10.Be2 g4 11.Nh4 f5 12.f3 d4+=) 10.bc6 bc6 11.Rb1 (11.Be2 Nd7 12.Rb1 Rb8+=) 11...Nd7 (11...0-0 12.Be2 Nd7+=) 12.Be2 0-0 (12...Rb8=) 13.0-0 Qc7 14.h3 Rab8 15.d4 e4 16.Nd2 f5 17.f3 ef3 18.Bf3 Nf6 19.Kh1 Ne4 20.Ne2 a4 21.c3 Qa5 22.Qe1 g5 23.Be4 fe4 24.Rf8 Rf8 25.c4 Nf5 26.Bc3 Qd8 27.Qg1 Rf7 28.Bb4 Bc7 (worse is 28...dc4 29.Ne4 Bd5 30.Bd6 Nd6 31.N4c3=) 29.cd5 cd5 (29...Qd5?! 30.g4 Nh4 31.Nc3+=) 30.g4 Nh4 31.Rf1 Qe8 32.Nc3 h5 33.gh5 Rf1 34.Qf1 Nf5 (worse is 34...Qh5 35.Qf8 (35.Na4 Nf3 36.Bd6 Bh3 37.Qf2 Bd6 38.Nf3 ef3 39.Kg1 Qg4 40.Kh1 Bg2 41.Kg1 Qh3 42.Qb2 Qh2 43.Kf2 Bg3) 35...Kh7 36.Qe7 Qf7 37.Qf7 (37.Qg5? Qf2 38.Qh5 Kg7 39.Qg5 Ng6–+; worse is 37.Na4 Qe7 38.Be7 Nf3+=) 37...Bf7 38.Na4+=) 35.Kg1 Ne3 36.Qf6 Bf4 37.Nf1 Qf7 38.Qf7 Kf7 39.Ne3 Be3 (39...Be3 40.Kg2 Bd4 41.Na4 Kg7–+) 0–1. marekt – Curlywurly, ChessWorld.net, 2003.

    8.Qd1 f5 A) 9.Nf3 Qf6 (9...Nh6 10.Be2 0-0 11.h4 Qf6 12.b6 c6=; 9...Nf6 10.Be2 Nbd7 11.Ng5 Qe7 12.d4 e4+=; 9...Nd7 10.Be2 g5 11.h4 gh4 12.Nh4 Qf6=; 9...Qe7 10.Be2 Nd7 11.0-0 0-0-0 12.b6 c6=) 10.Be2 Nd7 11.Na4 Ne7 12.Nc3 g5+=; B) 9.f4 Nd7 (9...Qh4 10.g3 Qe7 11.Bg2 Nf6 12.fe5 Be5+=; 9...Nf6 10.fe5 Be5 11.Nf3 Ng4 12.Ne5 Ne5+=) 10.Nf3 Ngf6 11.fe5 Ne5 12.Nd4 Bf7=.

    8.Qd1 h6 A) 9.Be2 Nd7 (9...Ne7 10.Nf3 0-0 11.Rb1 Nd7 12.0-0 Nb6+=; 9...a4 10.Nf3 Ne7 11.0-0 Nd7 12.Ne1 0-0=; 9...Qd7 10.d4 Ne7 11.de5 fe5 12.Nf3 0-0=; 9...c5 10.bc6 bc6 11.Nf3 Nd7 12.Rb1 Rb8=) 10.Nf3 Ne7 11.0-0 0-0 12.d4 e4+=; B) 9.Nf3 a4 (9...Nd7 10.Be2 Ne7 11.0-0 c5 12.d3 0-0=; 9...Ne7 10.Be2 0-0 11.0-0 Nd7 12.d3 Nb6+=; 9...c5 10.bc6 bc6 11.Be2 Nd7 12.Rb1 Rb8=; 9...Kd7 10.e4 d4 11.Na4 Ke8 12.c3 dc3+=) 10.Be2 Ne7 11.0-0 Nd7 12.Re1 Nb6+=; C) 9.Qf3 c6 (9...e4 10.Qd1 Nd7 11.d3 Be5 12.Nge2 Bf7=) 10.bc6 bc6 11.Bd3 f5 12.Be2 Nd7+=; D) 9.Bd3 Kf7 (9...Ne7 10.Nf3 Qd7 11.Be2 0-0 12.0-0 a4=) 10.Be2 Kg7 11.Nf3 Ne7 12.0-0 Nd7=.

    8.Qd1 Nh6 A) 9.Nf3 0-0 (9...g5 10.h3 Nd7 11.e4 d4 12.Na4 0-0=; 9...c5 10.bc6 Nc6 11.Nb5 Be7 12.Be2 Nf7=; 9...Nd7 10.Be2 0-0 11.d3 a4 12.0-0 Nf7=; 9...Nf5 10.e4 de4 11.Ne4 Bd5 12.Bd3 0-0=) 10.Be2 a4 11.0-0 Nd7 12.d3 Nb6+=; B) 9.Be2 c5 (9...Nf5 10.e4 de4 11.Ne4 Nh4 12.Nd6 Qd6=; 9...0-0 10.Nf3 Nd7 11.d3 a4 12.0-0 Nb6+=) 10.bc6 bc6 11.Nf3 Nd7 12.Rb1 Qe7+=.

    8.Qf3 A) 8...c6 A1) 9.Rd1 Nh6 (9...Qe7 10.a4 Nd7 11.Rb1 Nh6 12.Qe2 Nb6+=; 9...Qc7 10.h3 Nd7 11.Rb1 Ne7 12.bc6 bc6+=; 9...Nd7 10.Rb1 Ne7 11.bc6 bc6 12.Qd1 Rb8+=; 9...h6 10.Bd3 e4 11.Ne4 de4 12.Qe4 Qe7=) 10.Rb1 Nd7 11.h3 0-0 12.bc6 bc6+=; A2) 9.Rc1 Nd7 (9...Nh6 10.e4 d4 11.Nd1 f5 12.ef5 Nf5+=; 9...Qe7 10.e4 a4 11.bc6 bc6 12.ed5 Ba3+=) 10.e4 d4 11.Nd1 Nc5 12.c3 Nb3+=; A3) 9.e4 d4 10.Nd1 Nd7 11.Be2 Ne7 12.c3 Qb6+=; A4) 9.Qd1 Qc7 (9...c5 10.Qf3 e4 11.Qd1 Nd7 12.d3 Be5=; 9...Ne7 10.bc6 Nbc6 11.Nb5 0-0 12.Nf3 Nf5=; 9...Nh6 10.Nf3 c5 11.Be2 e4 12.Ng1 0-0=; 9...Nd7 10.Be2 c5 11.Nf3 Ne7 12.0-0 0-0+=) 10.Be2 Ne7 11.Nf3 Nd7 12.h3 c5+=; A5) 9.Rb1 Nd7 10.Qd1 c5 11.Nf3 Nb6 12.d3 Ne7=; B) 8...e4 9.Qd1 Nd7 (9...Qd7 10.f3 Be5 11.Rb1 Qe7 12.Qc1 Nd7=; 9...Qe7 10.d3 Be5 11.de4 de4 12.f4 ef3=; 9...Be5 10.f4 Bc3 11.Bc3 Qd7 12.Be2 Qd6+=; 9...Ne7 10.d3 ed3 11.Bd3 Nd7 12.Nf3 Ne5=) 10.Nge2 Qe7 11.d3 Nc5 12.Nd4 0-0-0=; C) 8...Bc5 C1) 9.Nge2 Bf8 (9...Bb6 10.Na4 Ba7 11.d4 e4 12.Qg3 Ne7=; 9...g5 10.d4 h5 11.Nd5 Bd5 12.e4 Bc4+=; 9...Qd7 10.d4 ed4 11.Nd4 Bd4 12.ed4 Kf7+/–; 9...e4 10.Qg3 Ne7 11.Nf4 Bc8 12.f3 d4=) 10.Rb1 Nd7 11.d3 Nb6 12.Rd1 Bd6+=; C2) 9.Be2 a4 (9...Nh6 10.e4 d4 11.Na4 Be7 12.Qd3 c5=; 9...e4 10.Qf4 g5 11.Qg3 Bd6 12.f4 Ne7=; 9...h5 10.Rb1 h4 11.e4 d4 12.Na4 Bd6=; 9...h6 10.d4 Bd6 11.de5 fe5 12.Rd1 Nf6=) 10.Rb1 Qd6 11.h4 e4 12.Qg3 Qg3+=.

    5.Nc3 a6

    6.d4 e4 (6...Bd6 7.de5 fe5 8.Nf3+= (worse is 8.Nd5 Bd5 9.c4 Be6-/+)) 7.Nh3 c6 (7...Bd6 8.Nf4 Bf4 9.ef4=) 8.Nf4 Bf7 9.Na4 Nd7 (9...b6 10.c4=) 10.Be2 Bd6 (10...b5 11.Nc5+=) 11.Nc5 Rb8 (11...Nc5 12.bc5 Bc7 13.Qd2=) 12.Nh5 (12.0-0 Nh6=) 12...g6 13.Nf4 Qe7 (13...Nc5 14.dc5 Be5 15.Bd4=) 14.0-0+= Bf4 (14...Nh6 15.Rb1+=) 15.ef4 Nh6 16.f3 f5 (16...0-0 17.Re1+=) 17.Qe1 0-0 18.Qg3 Nf6 (18...Rfe8 19.Rae1+/–) 19.Qh4 Kg7 20.fe4 fe4 (20...de4 21.c4 Rbd8 22.d5 cd5 23.Nb7+/–) 21.g4 Nhg8 22.g5 Nd7 23.Rae1 Be6 24.Ba6! ba6 25.Re4! de4 26.d5 Ndf6 (better is 26...Ngf6 27.Ne6 Kg8 28.gf6 Rf6 29.Bf6 Nf6+–) 27.Ne6 (27.Bf6 Nf6 28.Ne6 Kg8 29.gf6 Rf6-/+; 27.gf6?! Nf6 28.Ne6 Kg8 29.Nf8 Rf8 30.dc6 Qa7 31.Kh1 Qf7+–) 27...Kf7 28.gf6 Nf6 29.Bf6 Qf6 30.Qh7 Ke8 31.Qc7 cd5 32.Ng7 Qg7 33.Qg7 Rd8 34.Qe5 Kf7 35.f5 Rfe8 36.fg6 1–0. pierred (2115) – Barsam (1795), ICC, 2006.

    6.Nh3 Bd6 7.f3 (7.Bd3 Qd7=+) 7...Ne7 8.Nf2 0-0 9.Be2 Nbc6 10.Rg1 (10.0-0!?=+) 10...f5-/+ 11.h3 (11.b5 d4 12.bc6 dc3 13.Bc3 Nc6-/+) 11...f4 12.Ng4 Bg4 (12...Ng6 13.Bd3 Bg4 14.hg4 Qh4 15.Ke2-+) 13.fg4 (13.hg4!? b5 14.Rh1=+) 13...fe3 14.de3 d4 (14...e4 15.g3 Be5 16.Qd2-/+) 15.ed4 0-1. Anonymous_Network (2075) - allyouneedisluft (2635), Hourly Crazyhouse Arena, lichess.org, 2017.

    5.Nc3 c5

    6.bc5 Bc5 7.Na4 Bd6 8.Nf3 Nc6 9.Rc1 Nge7 10.c4 dc4 11.Bc4 Bc4 12.Rc4 0-0 13.0-0 b5 14.Rc6 Nc6 15.Nc3 a6 16.Ne4 Be7 17.Qb3 Kh8 18.Rd1 Na5 19.Qa2 Qd3 20.Nc3 Rad8 21.Ne1 Qc4 22.Qc4 Nc4 23.Bc1 Ba3 24.Ba3 Na3 25.Nf3 b4 26.Na4 Nb5 27.g3 a5 28.Rc1 Rc8 29.Rb1 Rc2 30.Kf1 Rfc8 31.Ke2 Ra2 32.Nb6 Rcc2 33.Nd5 Na3 34.Rb3 Nc4 (34...Nc4 35.Nb4 ab4 36.Rb4 h5–+) 0–1. vihavald (1690) – lakyluciano (1610), internet, 2011.

    6.bc5 Bc5 7.d4 ed4 8.ed4 Bd6 9.Nb5 Be7 10.Nh3 Bh3 11.Qh5 g6 12.Qh3 Qd7 (12...a6 13.Nc3 f5 14.Bd3+=) 13.Qd7 Kd7 14.c4 dc4 15.Bc4 a6 16.Be6 Kd8 17.Nc3 Nc6 18.Ne4 Nh6 19.0-0-0 Kc7? (19...Na5+–) 20.d5 Ne5 21.d6 Bd6 22.Rd6 Rad8 23.Rhd1 Rd6 24.Rd6 Re8 25.f4 Nc6 (25...Nc4 26.Rd7 Kc6 27.Bc4 Re4 28.Bd5 Kd7 29.Be4+–) 26.Bf6 Nf5 27.Rd7 Kb6 28.Bf5 gf5 29.Nd6 Re1 30.Kd2 Re4 (30...Re6 31.Bc3 Ne7 32.Rb7 Kc5 33.Bb4 Kc6+–) 31.Rb7 (31.Rb7 Kc5 32.Ne4 fe4 33.Rh7+–) 1–0. pierre – fedeajedrecista, Yahoo, 2005.

    5.Nc3 c6

    6.Bd3 A) 6...Qd7 A1) 7.Qh5 Bf7 8.Qd1 b5 9.f4 e4 10.Be2 a5+=; A2) 7.f4 Bd6 (7...e4 8.Be2 Nh6 9.b5 Nf5 10.Rb1 Nd6+=) 8.fe5 fe5 9.Qh5 Kd8 10.Qg5 Nf6+=; A3) 7.Be2 b5 (7...Bd6 8.Bh5 g6 9.Be2 b5 10.a4 ba4=) 8.d4 e4 9.f3 f5 10.Nh3 a5+=; B) 6...Nh6 B1) 7.Nf3 Bd6 (7...a5 8.b5 Bd6 9.0-0 0-0 10.Be2 c5+=; 7...Nd7 8.Be2 Bd6 9.0-0 Qc7 10.e4 d4+=; 7...Be7 8.0-0 0-0 9.Be2 Nd7 10.Re1 b5+=; 7...Qc7 8.0-0 a5 9.b5 e4 10.Nd4 Bf7+=) 8.Be2 0-0 9.0-0 Qc7 10.h3 Nd7+=; B2) 7.Nge2 b5 (7...a5 8.b5 Nd7 9.Ng3 Bd6 10.0-0 0-0=) 8.a4 Na6 9.Ba3 Nb4 10.Bb4 Bb4+=; C) 6...Bd6 C1) 7.Nf3 b5 (7...Qc7 8.e4 Ne7 9.0-0 a5 10.b5 0-0=; 7...Ne7 8.0-0 0-0 9.e4 d4 10.Ne2 c5+=) 8.0-0 a5 9.ba5 Ne7 10.a4 b4+=; C2) 7.Qh5 Bf7 (7...Kd7 8.Bf5 Bf5 9.Qf5 Kc7 10.b5 Qd7=) 8.Qg4 g6 9.e4 d4 10.Nce2 a5+=; D) 6...Nd7 D1) 7.f4 Nh6 (7...b5 8.a4 ba4 9.b5 Rb8 10.bc6 Rb2=; 7...e4 8.Bf1 Nh6 9.Nge2 Nf5 10.g4 Nh4=) 8.Nf3 Bd6 9.fe5 fe5 10.e4 d4+=; D2) 7.Nf3 Bd6 8.0-0 Ne7 9.Re1 0-0 10.Be2 b5+=; D3) 7.Be2 b5 (7...Bd6 8.Nf3 Ne7 9.0-0 Qc7 10.e4 d4+=; 7...Qc7 8.Bg4 Bg4 9.Qg4 Nh6 10.Qh3 a5=) 8.Nf3 a5 9.ba5 Ra5 10.d4 e4+=; D4) 7.Rb1 b5 8.Nf3 a5 9.Ba1 Bd6 10.e4 Ne7-/+; D5) 7.Qh5 Bf7 8.Qh4 b5 9.a4 ba4 10.b5 Rb8+=; E) 6...Ne7 7.Nf3 Ng6 (7...Qd6 8.e4 d4 9.Ne2 Nd7 10.Rb1 c5+=; 7...b5 8.a4 Na6 9.Ba3 Nc7 10.Be2 ba4=) 8.Be2 Bd6 9.0-0 0-0 10.Re1 Nd7+=; F) 6...a5 7.b5 c5 (7...Ne7 8.Nf3 c5 9.Be2 e4 10.Ng1 Nd7=; 7...Nh6 8.Nf3 Bd6 9.0-0 0-0 10.Re1 e4+=; 7...Nd7 8.Nf3 c5 9.Nh4 e4 10.Be2 Nh6+=) 8.f4 Nh6 9.fe5 fe5 10.Rb1 Bd6+=; G) 6...Qd6 G1) 7.Be2 Ne7 (7...Nh6 8.Nf3 Be7 9.0-0 0-0 10.d4 e4+=; 7...Qc7 8.Bg4 Bf7 9.Nge2 b5 10.0-0 a5=; 7...Be7 8.Bh5 g6 9.Be2 Nd7 10.Nf3 h5=; 7...Nd7 8.Nf3 Ne7 9.0-0 Nb6 10.d4 e4=) 8.Bh5 g6 9.Be2 Nd7 10.d4 e4+=; G2) 7.Bf1 Qc7 (7...Nh6 8.d4 Nd7 9.e4 Be7 10.Nf3 0-0=; 7...Nd7 8.Be2 Ne7 9.d4 e4 10.b5 Rc8+=; 7...Ne7 8.Nf3 Nd7 9.Be2 b5 10.a4 ba4=; 7...Be7 8.d4 e4 9.Nge2 Nh6 10.Nf4 Bg4=) 8.Be2 Bd6 9.Nf3 Ne7 10.h3 0-0+=; G3) 7.Ra2 e4 8.Be2 d4 9.ed4 Ba2 10.Na2 Qd5+=; G4) 7.Qh5 Bf7 8.Qh4 Ne7 9.Nh3 Be6 10.f4 e4=; H) 6...Qe7 H1) 7.Be2 b5 (7...Qc7 8.Bg4 Bf7 9.Bh5 Bd6 10.Bf7 Qf7=; 7...d4 8.Ne4 Bd5 9.Bf3 Na6 10.Qe2 de3=; 7...Nd7 8.Nf3 0-0-0 9.0-0 Nb6 10.b5 c5=; 7...a5 8.b5 d4 9.Na4 de3 10.de3 Nh6=) 8.a4 d4 9.ed4 ed4 10.Na2 a5+=; H2) 7.Qh5 Kd8 (7...Qf7 8.Qf7 Bf7 9.Be2 Bd6 10.Nf3 Ne7=; 7...Bf7 8.Qh3 Nd7 9.b5 Nc5 10.Be2 d4+=) 8.Bf5 g6 9.Bg6 Qg7 10.Bd3 Qg2+=; H3) 7.Rc1 Nd7 (7...Nh6 8.b5 Nd7 9.Qh5 Bf7 10.Qh4 Nc5+=; 7...b5 8.Qh5 Qf7 9.Qf7 Kf7 10.e4 Ne7+=) 8.Qh5 Bf7 9.Qh4 b5 10.e4 d4+=; H4) 7.Bf1 b5 8.d4 a5 9.ba5 Ra5 10.de5 fe5+=; H5) 7.Rb1 Nh6 (7...b5 8.e4 d4 9.Nce2 a5 10.c3 ab4=; 7...Nd7 8.Qh5 Bf7 9.Qd1 b5 10.e4 d4+=) 8.b5 Qd7 9.Be2 Bd6 10.Nf3 0-0+=; I) 6...b5 7.a4 Na6 8.Na2 Nb4 9.Nb4 Bb4 10.ab5 cb5=; J) 6...Qc7 7.Nge2 Bd6 (7...b5 8.0-0 a5 9.ba5 Na6 10.Ng3 Nc5+=) 8.Ng3 Ne7 9.0-0 Nd7 10.f4 ef4+=.

    6.Be2 b5 7.a4 (7.Nf3 a5 8.ba5 Ra5 9.0-0 Bd6 10.a4 b4+=) 7...Bb4 (7...a5 8.ab5 Bb4 9.f4 ef4 10.ef4 Qd6=; 7...ba4 8.Ra4 Nd7 9.b5 Nb6 10.Ra6 Bc8=; 7...Nh6 8.ab5 Bb4 9.Ra4 Bc3 10.Bc3 cb5=) 8.ab5 Ne7 9.Nf3 0-0 10.0-0 cb5=.

    6.Be2 Qc7 7.Bh5 g6 (7...Kd8 8.Bg4 Bg4 9.Qg4 Bd6 10.e4 d4=; 7...Kd7 8.Bg4 f5 9.Be2 Kc8 10.Nf3 Nf6=) 8.Bg4 Bg4 9.Qg4 f5 10.Qe2 Bg7=.

    6.Nce2 a5 A) 7.ba5 Qa5 (7...Ra5 8.d4 Nd7 9.de5 fe5 10.Nf3 Bd6+=) 8.Nf3 Bd6 9.a4 Ne7 10.Bc3 Qc7-/+; B) 7.f4 Bd6 (7...Nd7 8.Nf3 Bd6 9.Bc3 b5 10.ba5 Ne7+=; 7...ab4 8.ab4 Ra1 9.Qa1 Bb4 10.fe5 Nd7=) 8.Nf3 Nd7 9.ba5 Ra5 10.Bc3 Ra4+=; C) 7.Bc3 ab4 8.ab4 Ra1 9.Qa1 Na6 10.b5 Nb4+=.

    6.Nce2 Bd6 7.Ng3 (7.d4 Nh6 (7...Nd7 8.Nf3 e4 9.Nd2 Ne7 10.c4 0-0+=; 7...Qc7 8.Ng3 Nd7 9.Nf3 e4 10.Nd2 b5+=) 8.de5 fe5 9.Nf3 Nf7 10.Ng3 0-0+=; 7.Nc3 Nh6 (7...a5 8.b5 Ne7 9.Qh5 g6 10.Qf3 Nd7+=; 7...Ne7 8.Be2 0-0 9.Nf3 b6 10.0-0 Qc7+=; 7...Nd7 8.Nf3 Ne7 9.Be2 b5 10.a4 ba4+=; 7...Qe7 8.Nf3 Nh6 9.Be2 0-0 10.0-0 Qc7+=) 8.Nf3 0-0 9.Be2 Nd7 10.b5 c5+=) 7...Nh6 (7...Ne7 8.Qh5 Bf7 9.Qg4 h5 10.Qd1 h4+=; 7...a5 8.b5 Ne7 9.Qh5 Bf7 10.Qg4 0-0+=; 7...Nd7 8.Be2 a5 9.Bg4 Nf8 10.Be6 Ne6+=) 8.Be2 (8.Qh5 Bf7 9.Qh4 a5 10.b5 Nd7+=) 8...0-0 (8...a5 9.b5 0-0 10.Nf3 cb5+=) 9.Rc1 (9.Nf3 a5 10.b5 cb5+=) 9...f5 (9...a5 10.b5 Qb6-/+) 10.c4 (10.Nf3 Nd7+=) 10...Nd7 (10...dc4+=) 11.Nf3 Qe7 12.0-0 g5 (12...dc4 13.Bc4 Bc4 14.Rc4+=) 13.d4 e4 14.Ne5 f4 15.Nh5 Be5 16.de5 Qf7 17.cd5 cd5 (better is 17...Bd5!? 18.ef4 gf4+/–) 18.Rc7+– Qf5 (18...Qe8 19.Bb5 (19.Rb7?! f3 20.Bb5 Qh5 21.Bd7 Qg4 22.Be6 Qe6 23.gf3 ef3+/–) 19...Ng4 20.h3 Qh5 A) 21.Rd7 A1) 21...Bd7?? 22.Bd7 (22.Qd5?! Qf7 23.Qd7 Qd7 24.Bd7 Nh6+/–) 22...Rad8 23.hg4+–; A2) 21...f3 22.Rd5 fg2 23.Kg2 Rf3 24.Rd8 Kg7 25.Rd7 Kg6 26.Qf3 ef3 27.Kg3 Ne5 28.Rg7 Kh6 29.Rh7 Kh7 30.Bd3 Kh6 31.Bf5 Bf5 32.Kh2 Qh3 33.Kg1 Qg2; B) 21.hg4?! Qe8+–; C) 21.Bd7+–) 19.f3 (19.Rd7 Bd7 20.Qd5 Be6 21.Qb7 Qf7 22.Qe4 Bf5+–) 19...Rf7 (19...fe3!? 20.Bb5 e2 21.Qe2 Rad8+–) 20.ef4+– gf4 21.fe4 Qe4 22.Kh1 Qe3 23.Bd4 Qa3 24.Nf4 Nf8 25.Rf7 Bf7 26.Rf3 (better is 26.Bh5!? Be6+–) 26...Qb4 27.Rg3 (better is 27.Bc3 Qc5 28.Rg3 Bg6 29.Bf3+– (29.Qd5?! Qd5 30.Nd5 Ne6+=)) 27...Bg6?? (better is 27...Ng6 28.Ng6 Bg6+/–) 28.Nd5+– Qa5 29.Bc4 Ne6 30.Nf4 b5 (30...Kh8 31.Be6 Qb4+–) 31.Be6 Kh8 32.Ng6 1–0. Filippov – Prakapets, ch Nikopol, 1983.

    6.Nce2 Nd7 A) 7.Nc3 Bd6 8.Nf3 Ne7 9.Be2 b5 10.a4 ba4+=; B) 7.Nf3 a5 8.Bc3 ab4 9.ab4 Ra1 10.Qa1 Bd6+=; C) 7.Ng3 Bd6 (7...Nh6 8.Nf3 Qb6 9.Be2 Bd6 10.0-0 0-0+=; 7...Qb6 8.f4 ef4 9.ef4 0-0-0 10.N1e2 Bc5=; 7...Nb6 8.Nf3 Bd6 9.Be2 Ne7 10.0-0 0-0+=; 7...c5 8.bc5 Bc5 9.f4 Ne7 10.fe5 fe5+=) 8.Be2 Ne7 9.Bg4 f5 10.Bh5 Ng6+=; D) 7.d4 a5 (7...Nh6 8.de5 fe5 9.Nf3 Bd6 10.c4 Nf5=; 7...Qc7 8.Nf3 e4 9.Nd2 Bd6 10.c4 Qd8=; 7...Bd6 8.Nf3 e4 9.Nd2 Ne7 10.c4 0-0+=) 8.b5 Bd6 9.Nf3 e4 10.bc6 bc6+=.

    6.Nf3 A) 6...Qc7 7.e4 (7.Be2 Bd6 8.e4 d4 9.Nb1 a5 10.c3 dc3=) 7...d4 (7...a5 8.b5 d4 9.Na4 Qf7 10.Nb6 Ra7=) 8.Nb1 a5 9.c3 dc3 10.dc3 Nd7=; B) 6...a5 7.b5 Bd6 (7...c5 8.Be2 Bd6 9.e4 d4 10.Na4 Nh6=; 7...Nh6 8.Be2 Bd6 9.bc6 Nc6 10.d4 e4=; 7...Be7 8.Be2 Nh6 9.0-0 0-0 10.d4 e4=) 8.Be2 Ne7 9.0-0 0-0 10.bc6 bc6+=; C) 6...Nd7 C1) 7.Rb1 b5 8.a4 ba4 9.b5 cb5 10.Bb5 a3+=; C2) 7.Bd3 Bd6 (7...Qc7 8.0-0 Bd6 9.e4 d4 10.Na2 a5+=) 8.0-0 Ne7 9.Re1 0-0 10.Be2 b5+=; C3) 7.Be2 Nh6 (7...Bd6 8.0-0 Ne7 9.e4 d4 10.Nb1 0-0+=) 8.0-0 Bd6 9.Re1 0-0 10.e4 d4+=; D) 6...Bd6 D1) 7.Be2 Nh6 (7...Nd7 8.0-0 Ne7 9.e4 d4 10.Nb1 c5+=; 7...Qc7 8.e4 d4 9.Nb1 Ne7 10.c3 dc3=; 7...Ne7 8.0-0 0-0 9.Re1 Qc7 10.e4 d4+=) 8.0-0 0-0 9.h3 Nd7 10.Re1 b5+=; D2) 7.Bd3 Nd7 (7...Ne7 8.0-0 0-0 9.Ne1 Qc7 10.Qh5 e4+=; 7...Qc7 8.e4 Ne7 9.0-0 a5 10.b5 Nd7=) 8.0-0 Ne7 9.e4 d4 10.Ne2 c5+=.

    6.f4 a5 A) 7.fe5 ab4 8.ab4 Ra1 9.Ba1 Bb4 10.Nf3 fe5 11.Ne5=; B) 7.ba5 B1) 7...Bd6 8.Qh5 (8.fe5 fe5 9.Qh5 g6 10.Qd1 Ra5 11.Nf3+=) 8...g6 9.Qh4 Nd7 10.Nf3 Ra5 11.fe5=; B2) 7...ef4 8.ef4 Bd6 9.Qh5 Bf7 10.Qg4 Qe7 11.Nge2=; B3) 7...Nd7 8.Nf3 (8.Be2 ef4 9.ef4 Ra5 10.Bg4 Qe7 11.Be6+=; 8.a6 ba6 9.Nf3 Bd6 10.Be2 c5 11.e4+=; 8.fe5 fe5 9.Nf3 Bd6 10.Be2 Ra5 11.0-0+=) 8...Bd6 9.a6 ba6 10.Be2 c5 11.e4+=; C) 7.b5 Nd7 (7...Bd6 8.Qh5 g6 9.Qe2 Nd7 10.Nf3 c5 11.fe5=) 8.Be2 (8.Nf3 c5 9.fe5 fe5 10.d3 a4 11.Be2+=) 8...d4 9.ed4 ed4 10.Ne4 Nc5 11.Nc5=.

    6.f4 Bd6 7.Qh5 (7.fe5 fe5 8.Nf3 (8.Qh5 g6 9.Qd1 Nh6 10.Nf3 0-0 11.e4+=) 8...e4 9.Nb5 Nf6 10.Bf6 gf6 11.Nfd4=) 7...Bf7 (7...g6 8.Qe2 (8.Qf3 Nd7 9.Nge2 Ne7 10.b5 c5 11.Rd1+=) 8...Ne7 9.Nf3 0-0 10.g3 a5 11.b5+=) 8.Qg4 g6 (8...Bg6 9.Bd3 Ne7 10.fe5 fe5 11.Bg6=) 9.Nf3 Nd7 10.Be2 (10.fe5 Ne5 11.Qh3=) 10...Nh6 (10...ef4 11.ef4=) 11.Qh3 Nf5 12.0-0 Qe7 13.e4 de4 14.Ne4 0-0-0 15.Nd6 Qd6 16.fe5 Ne5 17.Ne5 Be6?? (better is 17...fe5 18.Bg4 Rhe8 19.Qh7 Rd7+/–) 18.Nc4+– Bc4 19.Bc4 Qd2 (19...Rhe8 20.Bd3+– (20.Qh7?! Rh8 21.Be6 Kb8 22.Qg6 Qh2 23.Kf2 Qf4 24.Kg1 Qh2 25.Kf2 Qf4 26.Kg1 Qh2=)) 20.Be6 Kb8 21.Bf6 Rd6 (21...Qe3 22.Qe3 Ne3+–) 22.Be5 Qe3 (22...Re8 23.Rad1 Qd1 24.Rd1 Ree6 25.Bd6 Rd6 26.Rd6 Nd6 27.Qh7+–) 23.Qe3 Ne3 24.Bd6 Ka8 25.Rf3 Nc2 26.Raf1 a6 27.Rf8 Rf8 28.Rf8 (28.Rf8 Ka7 29.Rf7+–) 1–0. marekt – Bull_Dog_Baz, ChessWorld.net, 2007.

    6.Be2 Bd6

    7.Nf3 Qc7 8.e4 d4 9.Nb1 a5 10.c3 dc3=.

    7.Nf3 Nd7 8.e4 d4 9.Nb1 Nb6 10.c3 d3=.

    7.Nf3 Ne7 8.0-0 0-0 9.Qb1 Qc7 10.e4 d4+=.

    7.Nf3 Ne7 8.0-0 0-0 9.Re1 Nd7 10.Kf1 b5-/+ 11.Na2 a5 12.Qb1 Qe8 13.Rd1 Qf7 14.Kg1 ab4 15.ab4 Nb6 16.d4 Qh5 17.de5 fe5 18.e4 Bg4 19.h3 Bf3 20.Bf3 Rf3 21.gf3 Ng6 22.Nc1 Rf8 23.Nd3 Rf3 24.h4 Qg4 25.Kf1 Rh3 26.Ke1 Nc4 27.Ra8 Nf8 28.Rf8 Bf8 29.f3 Qg1 30.Ke2 Rh2 31.Nf2 Qf2 32.Kd3 Qf3# 0–1. tonycally – marekt, ChessWorld.net, 2004.

    7.Nf3 Nh6 8.0-0 0-0 9.Re1 Nd7 10.Qb1 b5+=.

    7.h3 Nd7 (7...Ne7 8.Nf3 0-0 9.0-0 Nd7 10.b5 c5+=) 8.Bh5 g6 9.Be2 b5 10.e4 d4+=.

    7.Bh5 g6 (7...Kd7 8.Be2 Kc8 9.Nf3 Ne7 10.0-0 Nd7=) 8.Be2 Nd7 9.Nf3 Qc7 10.e4 d4=.

    6.f4 Nd7

    7.Bd3 A) 7...b5 8.Nf3 (8.a4 ba4 9.b5 Rb8 10.bc6 Rb2 11.Na4=; 8.fe5 Ne5 9.Nf3 Nd3 10.cd3 a5 11.Nd4=) 8...Qe7 9.Be2 a5 10.0-0 Ra7 11.fe5=; B) 7...Qe7 8.f5 Bf7 9.Nh3 b5 10.e4 d4 11.Ne2=; C) 7...e4 8.Bf1 (8.Be2 Ne7 9.Rb1 Ng6 10.Bg4 f5 11.Bh5+=) 8...Nh6 9.Nge2 Nf5 10.g4 Nh4 11.Nd4=; D) 7...Bd6 8.Qh5 (8.f5 Bf7 9.Qg4 Bf8 10.e4 d4 11.Nce2+=) 8...Bf7 9.Qg4 g6 10.Nh3 a5 11.b5=; E) 7...Nh6 8.Nf3 Bd6 9.fe5 fe5 10.e4 d4 11.Ne2+=.

    7.Be2 Bd6 8.Bh5 (8.fe5 fe5 9.Bh5 g6 10.Be2 Qh4 11.g3+=) 8...g6 9.fe5 Ne5 10.Be2 Qc7 11.e4+=.

    7.fe5 A) 7...Ne5 8.e4 (8.Nf3 Bd6 9.Nd4 Bg4 10.Be2 Be2 11.Qe2=; 8.d4 Ng4 9.e4 de4 10.Ne4 f5 11.Nc5=; 8.Be2 d4 9.ed4 Qd4 10.Nf3 Nf3 11.Bf3=; 8.Qh5 Bf7 9.Qd1 Bd6 10.Nf3 Qc7 11.Nd4+=) 8...Ne7 9.d4 Ng4 10.Bc1 f5 11.e5=; B) 7...fe5 8.Be2 (8.Nf3 Bd6 9.Be2 e4 10.Nd4 Qh4 11.Kf1+=) 8...Bd6 9.Bh5 g6 10.Be2 Qh4 11.g3+=.

    7.Qf3 A) 7...Ne7 8.Nge2 (8.Nh3 Qb6 9.Be2 e4 10.Qh5 g6 11.Qh4+=; 8.Be2 Nf5 9.Nh3 a5 10.b5 e4 11.Qf2=; 8.Qh5 Bf7 9.Qf3 Ng6 10.Be2 ef4 11.ef4=; 8.Rd1 Nf5 9.Qh5 g6 10.Qf3 Qb6 11.Nh3+=) 8...Qb6 9.Ng3 e4 10.Qh5 Bf7 11.Qg4=; B) 7...Nh6 8.Be2 (8.Qh5 Bf7 9.Qf3 Bd6 10.Nge2 Qe7 11.f5+=; 8.e4 d4 9.Nce2 Nb6 10.f5 Bf7 11.Ng3+=; 8.Nh3 Bd6 9.Be2 Qe7 10.0-0 a5 11.Qh5+=; 8.fe5 Ne5 9.Qh5 Bf7 10.Qh3 Bg6 11.Rc1+=) 8...Bd6 9.Nh3 a5 10.b5 Qe7 11.Nf2=; C) 7...Bd6 8.Be2 (8.Nge2 Ne7 9.Qh5 Bf7 10.Qg4 Bg6 11.Rc1+=; 8.Qh5 g6 9.Qf3 b5 10.e4 d4 11.Nce2+=; 8.e4 Ne7 9.f5 Bf7 10.ed5 cd5 11.Nb5+=; 8.f5 Bf7 9.Be2 Nh6 10.Nh3 e4 11.Qf2+=) 8...Ne7 9.Nh3 0-0 10.0-0 b5 11.a4+=.

    7.Nf3 Bd6 8.e4 ef4 9.ed5 cd5 10.Be2 Be5 11.d4=.

    7.Nf3 Bd6 8.fe5 fe5 9.Qe2 Ngf6 10.0-0-0 (better is 10.Ng5!? Bg4 11.Qd3-/+) 10...a5 11.b5 Qe7 12.h3 (better is 12.e4–+) 12...Ba3 13.d4 (13.Na4–+) 13...Bb2 14.Kb2 Qb4 15.Ka2 Qc3 16.Rd3 (16.Qd3 Ne4 17.Ra1 cb5 18.Qc3 Nc3 19.Kb3 b4–+) 16...Qc4 17.Rb3 Qe2 (better is 17...a4 18.Qc4 ab3 19.Kb3 dc4 20.Bc4 Bc4 21.Kc4–+) 18.Be2 ed4 19.Nd4 Bf7 20.bc6 bc6 21.Rc3 (21.Rf1 Rf8–+) 21...c5 22.Bb5 cd4 23.ed4 0-0 0–1. Hansen,Berno – Ostergard,Torben, For, 1989.

    7.Nf3 Bd6 8.fe5 fe5 9.Be2 e4 10.Nd4 Qh4 11.Kf1+=.

    7.Qh5 A) 7...Bf7 8.Qh3 (8.Qf3 Ne7 9.Nh3 Be6 10.Be2 e4 11.Qg3+=; 8.Qd1 Bd6 9.Qg4 Bg6 10.Bd3 e4 11.Be2+=; 8.Qe2 b5 9.Nf3 a5 10.ba5 Ra5 11.fe5+=; 8.Qh4 Nh6 9.Bd3 Bd6 10.Nh3 a5 11.b5+=) 8...Nh6 9.fe5 fe5 10.Nf3 Qf6 11.Be2=; B) 7...g6 8.Qd1 (8.Qe2 Nb6 9.d3 Bd6 10.Nf3 Ne7 11.Qd2+=; 8.Qf3 Bd6 9.Nge2 Ne7 10.b5 c5 11.Rd1+=) 8...b5 9.fe5 fe5 10.Nf3 Ngf6 11.Be2=.

    5.Nc3 Bd6

    6.Nb5 Nd7 7.Nd6= cd6 8.Nf3 Ne7 9.Be2 0-0 10.0-0 Rc8 11.Re1 a6 12.c3 f5 13.Ng5 Bf7 14.f4 e4 15.d3 Qb6 16.Qd2 h6 (16...Nf6 17.a4=) 17.Nf7+= Rf7 18.Rad1 (18.de4 de4 19.c4 Nf6+/–) 18...Ng6 (18...Nf6!?=) 19.Bh5+/– Rf6 (19...Kh7!? 20.de4 de4 21.Qd6 Qd6 22.Rd6 Nf6+/–) 20.c4!+– Nf4 (20...dc4 21.Bf6) 21.Bd4 (21.Bf6?! Nf6 22.c5 dc5 23.ef4 Nh5 24.de4 cb4 25.Kh1 Nf6+=) 21...Nc5 (21...Qd4 22.ed4 Nh5 23.cd5 ed3+–) 22.ef4 (< 22.bc5 dc5 23.Bf6 Nh5+–; < 22.Bf6 Nce6 23.c5 dc5 24.ef4 cb4 25.Kh1 gf6 26.de4 de4+–) 22...Rff8 (22...Nb3 23.Bb6 Nd2 24.Bd4 dc4 25.Bf6 gf6 26.Rd2 cd3 27.Bg6+–) 23.de4 fe4 (23...de4 24.bc5 dc5 25.Be5+–) 24.bc5 dc5 25.Be5 d4 26.Re4 Rce8 (26...Qc6 27.Qd3 Qd7 28.Re3+–) 27.Be8 1–0. b4_player (2065) – DarkOmen (1750), GameColony.com, 2002.

    6.Nb5 Be7!? =+.

    6.Nf3 Ne7 7.Nb5 0-0 8.d4 Bg4 9.Be2 Nd7 10.0-0= Qe8 11.Nd6 cd6 12.h3 Bh5 13.c3 a5 14.Nd2 Be2 15.Qe2 ab4 16.ab4 f5 17.f4 Qg6 18.Qb5 Ra1 19.Ra1 Nf6 20.Qb7+/– Re8 21.Ra8 e4 22.Ra1 Nh5 23.Nf1 Ng3 24.Qb5 Nf1 25.Kf1 Rc8 26.Ra7 Qf6 27.Qd7 Kf8 28.b5 Rb8 29.b6! Ng6 30.Qc7 Re8 31.b7 Ne7 32.Ra8 Qg6 33.Re8 Qe8 34.b8Q Qb8 35.Qb8 Kf7 36.Qd6 h6 37.Ba3 Ng6 38.Qd5 Kf6 39.Qd6 Kf7 40.d5 Nf4 41.Qf8 Kg6 42.ef4 e3 43.g4 fg4+– 44.hg4 Kh7 45.Bb2 e2 46.Ke2 h5 47.c4 hg4 48.Qg7# 1–0. NN – SuperConstellation4, 1988.

    5.c4 dc4

    6.b5 Nd7–+ 7.d3 Nc5 8.d4 Nb3 9.Ra2 ed4 10.Bd4 Nd4 11.Qd4 (11.ed4 Qd7-/+) 11...Qd7 (better 11...Qd4!? 12.ed4 0-0-0–+) 12.Qd7-/+ Kd7 13.Rc2 Bf5 (13...a6 14.b6-/+) 14.Rc1 (14.Rd2 Bd6 15.Nc3 Be6-/+) 14...Bd6 (14...a5 15.a4 Bb4 16.Nc3-/+) 15.Bc4=+ Re8 (15...a6 16.ba6 ba6 17.a4=+) 16.Ne2 Ne7 (16...Bb1 17.Rb1 Ba3 18.Nd4=) 17.Nd2 (17.Nd4!?=) 17...Ba3=+ 18.Rd1 (18.Ra1 Bc5=+) 18...Kc8 (18...Bb4 19.Nd4-/+) 19.Nd4 Bd7 20.0-0 (20.Bf7 Rd8=+) 20...Bc5 (20...Bb4 21.Nc2 Bd6 22.Nd4-/+) 21.N2b3 Bd6 22.Ra1 Kb8 23.Ra2 (23.Be6 Be6 24.Ne6 Nf5-/+) 23...Bb4 (23...c5 24.Nf3-/+) 24.Rfa1 (24.Ra4 Bc3=+) 24...Bc3 25.Rc1 Bd4 26.Nd4 Nc8 27.Rca1 (27.Rac2 Nd6=) 27...Re7 28.Bd5 Rd8 29.Rb1 Re5 30.Bc4 f5 31.g3 (31.Be2 Be6 32.Rc2 Bd5-/+) 31...g6 (31...Nb6 32.Bd3-/+) 32.Nf3 Rc5 33.Be2 Nd6 (33...Be6 34.Ra3-/+) 34.Nd4=+ Rd5 35.Nc6 (35.Rba1!? Nc8 36.Rc1=+) 35...Bc6-/+ 36.bc6 b6 37.Rba1 (37.Bf3 Rd3-/+) 37...a5 38.Rb1 (38.Bf3!? Rd3 39.h3-/+) 38...Rc5–+ 39.Bf3 Ne4 40.Be4 fe4 41.Ra4 Re8 42.Rb2 (42.Kg2 Ree5–+) 42...Re6 (42...Ree5 43.Kg2–+) 43.Kg2 Rcc6 (43...Ka7!? 44.Rbb4–+) 44.Ra5 Kb7 (44...Rc3 45.Ra6-/+) 45.Ra4-/+ Rcd6 46.Rba2 (46.Rbb4 c5 47.Re4 b5 48.Re6 Re6-/+) 46...Rd5 (46...c5 47.Ra7 Kc6 48.Rh7-/+) 47.Ra7 Kc6 (47...Kc8 48.h3-/+) 48.Ra8 (48.Rc2!? Rc5 49.Rc5 bc5 50.f3-/+) 48...Kd6 49.Rc2 (49.Rc2 c5 50.Rb2–+; 49.Rd8 Ke5 50.Rd5 Kd5 51.Rd2 Kc6–+). BeepBeepImAJeep (2595) – kingston_1972 (2560), lichess.org, 2015.

    6.Qc2 c6 7.Nf3 (7.Bc4 Bc4 8.Qc4 a5=) 7...Nd7 (7...b5 8.d4-/+) 8.Bc4= Bc4 9.Qc4 Nb6 (9...a5 10.ba5 Qa5 11.Qe6 Ne7 12.Nc3+=) 10.Qc2 Qd7 (10...a5 11.ba5 Nd5 12.0-0=) 11.d4 ed4 (11...Qg4 12.0-0 (12.de5? Qg2 13.Rg1 Qf3–+) 12...e4 13.Nfd2+=) 12.Nd4 (12.Bd4 Bd6+=) 12...Nh6 13.0-0 Bd6 14.Nd2 0-0 15.Ne4 Rae8 (15...Nd5 16.Rfd1 Ng4 17.h3+=) 16.Rad1 Bb8 (16...Be5 17.f4 Bd4 18.Bd4+= (worse is 18.Rd4 Nd5+=; worse is 18.ed4 Nd5+=)) 17.Nc5 Qf7 18.Nf5 (18.e4 Nc4+=) 18...Bh2 19.Kh2 Qh5 20.Kg1 Nf5 (20...Qf5 21.Qf5 Nf5 22.Nb7+=) 21.Nb7 Nh6 22.Qc5 Qh4 (22...Qc5 23.Nc5 Nc4 24.Bc1+/–) 23.g3 (23.Qc6 Ng4 24.Qc7 Re7–+) 23...Qg4 24.Qc6 Nf5 (24...Rc8 25.Qb5+=) 25.Qg2 (25.Bd4 Ne7 26.Qb5 Rb8+/–) 25...Ne3 (better is 25...Nc4!? 26.Bc1 Re5+=) 26.fe3+– Re3 27.Rd4 Qg3 28.Qg3 Rg3 29.Kf2 Rb3 30.Bc1 Rc3 31.Rg1 (31.Nc5 g5+/–) 31...g5 32.Nc5 Re8 (32...h5+/–) 33.Bd2 (33.Rgd1!?+/–) 33...Ra3+= 34.Ne4 White gets kings attack 34...Rf8 35.Rd6 Nc4? (better is 35...Ra2+=) 36.Rf6+– (worse is 36.Nf6 Kh8 37.Rh1 Kg7 38.Bg5 Nd6 39.Bh6 Kf6 40.Bf8 Ne4 41.Kg2 Kf7-/+) 36...h6 (36...Rf6 37.Nf6 Kf7 38.Bg5+/–) 37.Bg5! Threatening mate... how? 37...Rf6 (37...hg5 38.Rg5) 38.Bf6 (38.Nf6 Kf7 39.Bh4 Rh3+/–) 38...Kf7 39.Bd4 Ke6 40.Nc3 Rb3 (40...Kf5 41.Rh1 Kg5 42.Ne4 Kf5 43.Nc5+–) 41.Rg6 Kd7 (41...Kf5 42.Rh6 Rb4 43.Ba7 Rb2 44.Ne2+–) 42.Rg7 (42.Rh6 Rb4 43.Rh7 Ke6 44.Ra7 Ne5 45.Ra6 Kf5+–) 42...Ke6 43.b5 (better is 43.Ra7!? Nd6+–) 43...Nd6 44.Rg6 Kd7 45.Be5 (45.b6!? ab6 46.Nd5 Kc6 47.Nb6 Rd3+–) 45...Nb5 46.Ne4 Ra3? (better is 46...Rh3+–) 47.Nc5 Ke7 (47...Ke8 48.Rh6 a5 49.Rg6+–) 48.Rg7 (better is 48.Rh6!? Kf7+–) 48...Ke8 49.Rg8 (49.Bf6 Ra2 50.Ke1 Ra3 51.Re7 Kd8 52.Rb7 Ke8+–) 49...Kf7 50.Rg7 (50.Rg4+–) 50...Ke8 51.Bf6 Ra2 52.Kf1 (better is 52.Ke1 Ra3 53.Re7 Kd8 54.Rb7 Ke8+–) 52...Ra3 53.Re7 Kd8 54.Rb7 Kc8 (54...Ke8 55.Bg7 (55.Rb5?! Rf3 56.Kg2 Rf6+=) 55...Nd6 56.Rb8 Kf7 57.Bh6+–) 55.Be5 (55.Be5 Kd8 56.Rb5+–; 55.Rb5?! Rf3 56.Ke2 Rf6=) 1–0. Steffens,Olaf (2330) – Hoexter,Heinrich, BL2–N, 1995.

    6.Qc2 Qd5 7.Nc3+= Qd7 8.Ne4 Qc6 9.Rc1 Bd5 (9...b5 10.Nf3=) 10.f3 (better is 10.b5!? Qb5 11.Nc3+=) 10...b5= 11.Nc3 (11.d3 cd3 12.Qd3 Bc4=) 11...Bf7 12.d3 (12.a4 a6 13.Ra1 ba4 14.Ra4 Nd7-/+) 12...Qb6 (12...a5!? 13.dc4 ab4 14.ab4 Bc4 15.Bc4 Qc4-/+ (15...bc4?! 16.b5 Qe6 17.Nge2=)) 13.dc4= Qe3 14.Be2 bc4 15.Nd1 Qb6 16.Bc4 Bd6 (better is 16...Ne7=) 17.Bf7+– Kf7 18.Qb3 Kg6 (18...Ke7 19.Ne2 a5+=) 19.Qd5 (better is 19.Qd3!? f5 20.Ne3+–) 19...Ne7+= 20.Qa8 (20.Qe4 f5 21.Qa8 Rf8=) 20...c6= 21.Nc3 Rd8 22.Nb5 Qb5 (22...Qb5 23.Qa7 Combination; 22...cb5 23.Qe4 Double attack) 23.Qa7+= Nd5 24.Ne2 Nf4 25.Nf4 ef4 26.Qf2 Re8 (26...Bb4!? 27.ab4 Re8 28.Kd1 Rd8 29.Bd4 Qb4 30.Qc2 f5+=) 27.Kd1+/– Kf7 (27...Rd8!? 28.Qc2 Kh6+/–) 28.Rc2+– Nd7 (28...Be5 29.Qc5 Qc5 30.bc5+–) 29.Qf1 (29.Rd2 Qb8+–) 29...Qd5? (29...Nb6 30.Kc1+–) 30.Kc1 (better is 30.Rd2 Qb3 31.Kc1+–) 30...Nb6? (better is 30...Ne5 31.Be5 Qe5 32.Qc4 Kg6+–) 31.Qa6 Bc7 (31...Qb5 32.Qb7 Be7 33.Qc6 Qc6 34.Rc6+–) 32.Rd1 Qb3 (32...Qe6 33.Bd4 Rb8 34.b5+–) 33.Qd3 (better is 33.Rc6!? Be5 34.Be5 Re5+–) 33...Qa2 (33...Qe6+–) 34.Be5! (34.Be5 Qe6 35.Bc7+–) 1–0. Kosikov,Alexey I (2425) – Nazarevich,Vitaly (2260), Kiev Independence Cup–A 9th, 2009.

    6.Qc2 Qd5 7.Nc3 Qd7 8.Ne4 Qc6 9.d3 cd3 10.Bd3 (10.Qd3 Nd7 11.Rc1 Qb6=+) 10...Qc2=+ 11.Bc2 a5 12.b5 Ne7 13.Nc5 Bc8 (13...Bc4 14.Be4 Ra7 15.Bd3 Bd3 16.Nd3=+) 14.Nf3 b6 15.Be4 (15.Na4 Bb7=) 15...Ra7=+ 16.Nb3 (16.Na4 Nf5=+) 16...Bb7 (16...Be6 17.Nbd2-/+) 17.Bb7=+ Rb7 18.0-0-0 (18.0-0 c6 19.bc6 Nec6=+) 18...Nd7 19.Nfd2 (19.Rd2!?=+) 19...a4-/+ 20.Na1 Nf5 21.Nc4 Nc5 22.Rhe1 (22.f3 Ne6-/+) 22...Nd6 23.Nd6 Bd6 24.Nc2 Ke7 (24...Kf7-/+) 25.Nb4 (25.e4!?-/+) 25...Nb3-+ 26.Kc2 Bb4 27.ab4 Ra8 28.Rd5 (28.Bc3 Rc8-+) 28...Rd8 (better 28...Rbb8-+) 29.Red1? (29.Rd8 Kd8 30.f4 e4-/+) 29...Rd5 (better 29...Nd4! 30.R5d4 ed4 31.Bd4 Ra7-+) 30.Rd5-/+ Ra7 31.f4 ef4 32.ef4 Ra8 33.Rd3 (33.Bc3 Rc8-/+) 33...Rd8-+ 34.Re3 Kf7 35.Rc3? (35.Rd3 Rd3 36.Kd3 Ke7-+) 35...Rd2 (better 35...Nd4 36.Kd2 Nb5 37.Rd3 Rd3 38.Kd3 Ke6-+) 36.Kb1 Rg2 37.Rc7 Kg6 38.Rb7? (38.Rc6 Rh2 39.Ka2-+) 38...Nd2 39.Ka2 (39.Kc1-+) 39...Nc4 40.Rb6 (40.Ka1 Rb2 41.Rb6 a3-+) 40...Rb2 (better 40...a3 41.f5 Kf5 42.Rc6 Rb2 43.Ka1-+) 41.Ka1 a3 42.Rc6 (42.Ra6 Rb4 43.Rc6 Nd2-+) 42...Rb4 (better 42...Nd2 43.Rc3 Nb3 44.Rb3 Rb3 45.Ka2 Rb4 46.Ka3 Rb5 47.Ka4-+) 43.b6 (43.Rc5 Nd2 44.Ka2 Nb1-+) 43...Nb6 44.Rc4 (44.h3-+) 44…Nc4 (44...Nc4 45.h3 Kf5 46.h4 Rb2 47.h5 Ne3 48.h6 Nc2) 0-1. pacalmisu (2385) - genodesis (2450), Rated Blitz game, lichess.org, 2016.

    6.Qc2 Qd7 7.Bc4 Qc6 8.Bd3 =.

    6.Qc2 Nd7 7.Bc4 Bc4 8.Qc4 Nb6 9.Qc2 Qd7 10.d4 Qg4 11.f3 (11.Qc7?? Qg2 12.Nf3 Qh1 (worse is 12...Qf3 13.Rg1–+) 13.Ke2 e4–+) 11...Qh4 12.g3 Qh6 13.Ne2 Bd6 (13...Qe3 14.de5 (worse is 14.Qc7 Qf3 15.Rf1 Qd5+=) 14...Qf3 15.Rf1=) 14.de5 fe5 15.f4 ef4 16.Qe4 Ne7 17.Nf4 0-0 18.Qe6 Qe6 19.Ne6 Rf7 20.Nd2 Nc6 21.0-0-0 a5 22.b5 Ne5 23.Be5 Be5 24.Nd4 (24.e4 Re8 25.Nc5 c6 26.bc6 bc6=) 24...Bd4+= 25.ed4 Rf5 26.Rhe1 Rb5 27.Re7 Nd5 28.Rd7 Ra6 29.Re1 Rc6 30.Kd1 Nf6 31.Rd8 Kf7 32.Re3 Rd5 33.Rd5 Nd5 34.Re5 Nc3 35.Ke1 Re6 36.Nf3 Re5 37.Ne5 Ke6 38.Nc4 a4 39.Kd2 Nb1 (39...Nb1 40.Kd3 b5 41.d5 Kd5 42.Ne3 Ke5–+) 0–1. Nonnenmacher,Thomas (1950) – Krebs,Juergen (2345), BdF T, 2004.

    6.Qc2 Nd7 7.Bc4= Bc4 8.Qc4 Nb6 9.Qc2 Qd7 (9...a5 10.ba5 Ra5 11.d4=) 10.Nf3 0-0-0 (10...a5 11.ba5 Ra5 12.d4=) 11.0-0 (11.d4 Qa4 12.Qe2 e4=) 11...Qd3 (11...Qa4 12.Qe4=) 12.Rc1 (12.Qd3!? Rd3 13.Be5 fe5 14.Ne5+/–) 12...Qc2= 13.Rc2 Ne7 (13...Na4 14.Bc3=) 14.Nc3 Nc6 15.Rac1 (better is 15.Ne4!?=) 15...Bb4-/+ 16.Nb5 (16.ab4 Nb4 17.Nb5 c6 18.Na7 Kc7 19.Ne5 Nc2 20.Rc2 fe5 21.Be5 Kd7 22.Bg7 Rhe8=) 16...Bd6 (16...Bf8 17.Rc6 bc6 18.Na7 Kb7 19.Nc6–+) 17.d4 e4 18.Nd2 Rhe8 19.Nb3 (19.Nc4 Nc4 20.Rc4 a6 21.Nd6 Rd6-/+ (21...cd6? 22.d5+–)) 19...Kb8 20.Bc3 (20.Nd6 Rd6 21.Bc3 Nd5-/+) 20...Nd5 (20...Be7 21.Bb2-/+) 21.Bd2 (21.Nd6 Rd6 22.Nc5 Kc8-/+) 21...Bf8 22.Nc5 (better is 22.Na5!? a6 23.Nc6 bc6 24.Nc3 Ba3 25.Rb1 Kc8 26.Ra2-/+) 22...a6–+ 23.Nc3 Bc5 24.Nd5 (24.dc5 Re5 25.Ne2–+) 24...Ba3 (24...Rd5?! 25.Rc5 Red8 26.f3 ef3 27.gf3-/+) 25.Ra1 Rd5 (25...Bf8 26.Nf4–+) 26.Ra3 Rb5 (26...Ka7 27.Kf1–+) 27.f3 f5 28.Kf2 ef3 29.Kf3 (29.gf3 f4–+) 29...Re4 30.g3 (30.Bc3 Kc8–+) 30...Rd4! 31.Rc6 (31.ed4 Nd4 A double attack) 31...Rd2 32.Re6 g5 (32...Rh2 33.Re7 g5 34.e4 g4 35.Ke3–+) 33.g4 (33.h3 Rbb2 34.e4 Rf2 35.Ke3 c5 36.ef5 g4 37.hg4 Rbe2 38.Kd3 Re6 39.fe6 Rf6–+) 33...fg4 34.Kg4 Rh2 35.e4 (35.Kg3 Rbb2–+) 35...h5 36.Kg3 Rbb2 37.Ra5 (37.e5 Rhg2 38.Kh3 c5–+) 37...Rhg2 (37...Rhc2 38.Rf5–+) 38.Kf3 h4 39.Re8 (39.e5 g4 40.Kf4 g3–+) 39...Ka7 40.e5 h3 41.Rh8 h2 42.e6 Rbf2 43.Ke4 Re2 (43...Re2 44.Kf5 Rg1 45.Rh2 Rh2–+) 0–1. Bulcourf,Carlos (2285) – Rodriguez,Andres (2475), Villa Ballester op, 1998.

    6.Qc2 Nd7 7.Nf3 b5 8.d3 Nb6 9.Nbd2 =.

    6.Qc2 Nd7 7.Nf3 Nb6 8.d4 ed4 (8...cd3 9.Bd3 Qd7 10.Bh7=) 9.Nd4= Bf7 (9...Bd5 10.Nc3=) 10.Nd2 Will c4 fall? (10.Qe4 Ne7 11.Qb7 Rb8+=) 10...c5= 11.bc5 Bc5 12.Nc4 (worse is 12.Bc4 Nc4 13.Nc4 Qd5+=) 12...Bd4 (12...Bd5 13.Nf5 g6 14.Nb6 Qb6 15.Nd4=) 13.Bd4 Nc4 14.Bc4 Bc4 15.Qc4 Ne7 (15...Qa5 16.Bc3 Qf5 17.Rc1+=) 16.Rb1 (16.Qb5 Qd7 17.Qh5 Ng6+=) 16...b6 17.0-0 Qd5 18.Qa4 Qc6 (18...Qd7 19.Qd1+=) 19.Qb4 (19.Qa6 0-0+=) 19...Rc8 20.a4 (20.Rfd1 Qc4+=) 20...Qd7 (20...Qe6 21.Qb5 Nc6 22.Qh5 Qf7 23.Qf5=) 21.Qb3 Nc6 22.Rfc1 Ke7 (22...Rc7 23.Rc3+=) 23.Bb2 (23.Rd1 Qe6 24.Qd3 Kf7+=) 23...Qe6 24.Ba3 (24.Qb5 Rhd8=) 24...Kf7= 25.Qd3 Ne5 (25...f5 26.Rb5 Ne5 27.Qd4+=) 26.Qa6 Rc1 27.Rc1 Qd7 28.f4 (28.Bb2 Rd8=) 28...Nd3 29.Qc4 (29.Rd1 Rd8=) 29...Kg6 30.Rd1 Rd8 31.h3 h5 (31...f5 32.Bb2 Qd5 33.Qc3=) 32.Kf1 (32.Qa6 Qd5 33.Qa7 Qb3=) 32...Kh7 (32...h4 33.Kg1=) 33.Rd2 (33.Qb5 Kg6=) 33...g5 (33...f5!?=) 34.fg5 (34.Qc3 gf4 35.Ke2 Qb7 36.Rd3 Qg2 37.Kd1 Qf1 38.Kc2 Qe2 39.Qd2 Rc8 40.Rc3 Qd2 41.Kd2 Rc3 42.Kc3 fe3+/–) 34...fg5 (34...Qf5 35.Kg1 fg5 36.e4+/–) 35.Qe4 Kh6 36.Kg1 Qd5?? (better is 36...Qh7 37.Qe6 Qg6+/–) 37.Bf8!!+– (37.Bf8 Rf8 38.Qd5+– (38.Qd3?! Qd3 39.Rd3 Rf6=)) 1–0. Steffens,Olaf (2325) – Carl,Manfred, Schleswig Holstein–ch masters, 1996.

    6.Qc2 Ne7 7.Bc4= Qd7 (better 7...Bc4!? 8.Qc4 a5=) 8.Be6+/- Qe6 9.Nf3 (9.Qc7!? Qc6 10.Qc6 Nbc6 11.Nc3+/-) 9...c6 10.0-0 Nd7 11.d3 g6 12.Nbd2 Bg7 13.Nc4 (13.d4 Rd8+=) 13...0-0= 14.Rfe1 Nb6 (14...Rac8 15.Ncd2=) 15.Nfd2 (15.Na5 Rfb8+=) 15...f5 (15...Rfd8 16.Rad1=) 16.Na5 (16.e4 Rad8+=) 16...Rab8= 17.Rac1 f4 (17...Ned5!?=) 18.ef4+/- Rf4 19.Ne4 Qf5 (better 19...Ned5!?+/-) 20.Nc5+- Rf8 21.f3 (21.Nab7?! Rf2 22.Qb3 Ned5=) 21...Qg5? (21...Nbd5 22.Nab7 Rh4 23.g3 Qf3 24.Qe2+/- (24.gh4 Nf4 25.h3 Nh3 26.Kh2 Nf2 27.Qc4 Nd5 28.Re3 Qe3 29.Qg4 Ng4 30.Kh1 Qh3 31.Kg1 Qh2; 24.Be5 Be5 25.Re5 Nf4 26.Qc4 Ned5 27.Qf4 Nf4 28.gh4 Qg2)) 22.Kh1 (better 22.Ne6 Qf6 23.Nf8 Qf8 24.Nb7+-) 22...Rh4 23.Qf2 Nf5 24.Ne4 (24.h3 Rf7+-) 24...Qh6 (24...Qe7 25.Rc2 Nc8 26.Rce2+/-) 25.h3 (25.g3 Rh3 26.Nb7 g5+-) 25...Nd5 (better 25...Rf7+=) 26.Rc5?? (26.Nb7 Nf4 27.Qd2+/- (27.Rc6 Nh3 28.gh3 Rh3 29.Kg2 Rh2 30.Kf1 Rf2 31.Nf2 Qh2 32.Be5 Be5 33.Re5 Qe5-+)) 26...Nf4-+ 27.Bc1 (better 27.Qd2 b6 28.Rc6 ba5 29.b5-+) 27...Nd3?? (better 27...b6 28.Rc6 Nd4-+) 28.Bh6 (better 28.Qa2 Kh8 29.Bh6 Bh6 30.Rb1 Nc5 31.bc5 Re4 32.fe4 Ng3 33.Kh2+-) 28...Nf2= 29.Nf2 Bh6 30.Rce5 (worse 30.Ree5 b6 31.Rc6 ba5 32.Ra5 Rd4-/+) 30...Bf4 (30...Bd2 31.Nb7 Be1 32.Re1=+) 31.Re8 Ng3 (31...Bg3!? 32.Kg1 Nd6=) 32.Kg1+= Kg7 (32...Bd2!? 33.R1e7 b6+=) 33.Rf8 (33.R8e7 Rf7+-) 33...Kf8+/- 34.Nb7 Nf5 (34...Bd2 35.Rd1 Be3 36.Nc5+/-) 35.Ng4 (35.Nd8 Bg3 36.Rc1 Nd4+-) 35...h5 36.Ne5 Be3?? (better 36...Be5 37.Re5 Rc4+-) 37.Kf1 (better 37.Re3 Rd4 38.Rc3+-) 37…Ng3 0-1. pacalmisu (2405) - NoGalloNoParty (2385), Rated Blitz game, lichess.org, 2016.

    6.Nc3 a6 7.Nf3 b5 8.g3 Bd6 9.Bg2 Ne7 10.Ne5 Be5 11.Ba8+/– 0-0 12.Bg2 c6 13.0-0 Nd5 14.Rb1 Nc3 15.Bc3 Qc7 16.f4+– Bc3 17.dc3 Rd8 18.Qc2 Bd5 19.e4 Bf7 20.Rbd1 Nd7 21.Rd2 Nf8 22.Rfd1 Rd2 23.Rd2 g6 24.Qd1 c5 25.Qg4 Kh8 26.Qd1 cb4?? 27.ab4+– Kg7 28.h4 h5 29.Kf2 a5 30.ba5 Qa5 31.Qc2 Ne6 32.f5 Nc5+/– 33.Re2 Qb6 34.Kf1 Nd3 35.Qd2 Qd6 36.Re3 g5? 37.hg5+– fg5 38.Kg1 Kh6? 39.e5! Qc5 40.Kf1 Ne5 41.Bh3?? g4?? 42.Re5+– (42.Re5 Qe3 43.Qe3 Kh7 44.Re7 Kg7 45.Qg5 Kf8 46.Qf6 Kg8 47.Qf7 Kh8 48.Qe8) 1–0. wlittle (2155) – dmendiola, net–chess.com, 2004.

    6.Nf3 c6 7.Nc3 Ne7 8.Qc2 (better 8.d4 cd3 9.Bd3=+) 8...g5 (better 8...Nd5!?-/+) 9.Ne4= Ng6 10.Bc4 Bc4 (10...Bd5 11.h3+=) 11.Qc4 Be7 (11...Qe7 12.d4 g4 13.Nfd2+=) 12.0-0 (12.Qe6 Rf8 13.d4 ed4 14.Nd4 Nh4+-) 12...Nd7 (12...g4!? 13.Ne1 f5+=) 13.d4 Nb6 (13...f5 14.Ng3 Nb6 15.Qe6+/-) 14.Qc2 (better 14.Qe6 Nd5 15.de5+-) 14...g4+/- 15.Nfd2 Qc7 16.Rfd1 0-0-0 17.de5 (17.Nc5 Bc5 18.bc5 Nd5+/-) 17...fe5 18.a4 (18.Rac1 a6+/-) 18...Nd5 (better 18...Bb4!? 19.Nc4 Nd5=) 19.b5+/- cb5 20.Qc7 (20.Qb3 Kb8+/-) 20...Kc7 (better 20...Nc7!? 21.ab5 Nb5=) 21.ab5+= Kb8 (21...Nf6+=) 22.Rac1 (22.Nc4 Nf6 23.Ng5 Rd1 24.Rd1 Re8+/-) 22...Nb4 (22...Nb6 23.f4 gf3 24.Nf3 Rd1 25.Rd1=) 23.Rb1 (better 23.Nc4 Nd3 24.Rd3 Rd3 25.Ne5+/-) 23...Nd3 24.Ng3 (24.f3 gf3 25.Nf3 Nb2 26.Rd8 Rd8 27.Rb2 Kc7=) 24...Rhf8=+ 25.Nde4 Nb2 26.Rd8 Rd8 27.Rb2 Rd1 28.Nf1 Nh4 29.Rd2 Rb1 (29...Rc1 30.Rd5 Ng6 31.Neg3=+) 30.Rd7 Bb4?? (better 30...Ng6!? 31.Nc3 Kc8 32.Re7 Rf1 33.Kf1 Ne7=) 31.Neg3 (31.Rh7 Nf5+-) 31...Be1? (31...h6 32.Rh7 Ng6 33.Rh6+/-) 32.Rd8 (32.Rh7 Rb2 33.Ne4 Nf5+-) 32...Kc7 33.Rd7?? (33.Rh8 Rb2 34.Rh7 Kb6+-) 33...Kb6 (better 33...Kd7 34.Ne4 Ke7-+) 34.Ne4 (34.Rh7 Rb2 35.Ne4 Nf5+-) 34...Ka5? (better 34...Rb5 35.Rh7 Nf5+=) 35.Rd6?? (better 35.Rb7 h5 36.Ra7 Kb6 37.Rh7+-) 35...Kb5 (35...Rb4!? 36.Nfg3 Rb5+= (worse 36...Kb5 37.Rd1+-)) 36.Ra6 (36.Ra6 Ka6 37.h3 gh3 38.gh3-+). alddhsfd (2085) - Anthony_PCTR (2205), lichess.org, 2021.

    6.Qc2 b5

    7.Nc3 a5 8.ba5 Ra5 9.d3-/+.

    7.Nc3 c6 8.d3=+.

    7.d3 a5 8.ba5 Nc6 9.dc4 b4 10.Nf3 Ra5 11.a4 f5 12.Nbd2 e4 13.Nd4 Nd4 14.ed4 Ra8 15.a5 Nf6 16.c5 Be7 17.Bb5 Bd7 18.Bc4 Bc6 19.0-0 Nd5 20.Rfe1 Qd7 21.Bb3 Bf6 22.f3 0-0 23.Ne4 fe4 24.fe4 Kh8 25.ed5 Bd5 26.Bd5 Qd5 27.Qd3 Bh4 28.Rf1 Rf1 29.Qf1 Bf6 30.Qd3 h6 31.a6 c6 32.h3 Ra7 33.Kh1 Qd7 34.Qe2 Qc8 (34...Bd4?? 35.Rd1 Qe7 36.Qe7 Re7 37.Rd4+–) 35.Ra4 Re7 36.Qd3 Qb8 37.Qf1 Ra7 38.Ra1 Qg8 39.Qd3 Qe8 40.Qc4 Qb8 41.Kg1 Kh7 42.Qd3 Kh8 43.Rf1 Qe8 44.Kh2 Qe7 45.Rb1 Qc7 46.Kg1 Qc8 47.d5 ½–½. Degterev,Pavel (2095) – Barbosa de Oliveira,Marcio (2170), IECG, 2006.

    7.d3=+ a5 8.ba5 Bf5 9.e4 cd3 10.Bd3=+.

    7.d3 a5 8.dc4 ab4 9.cb5 ba3 10.Na3 Bb4 11.Ke2 Qd7-/+.

    7.d3 a5 8.dc4 ab4 9.cb5 ba3 10.Na3 Bb4 11.Ke2 Ne7=+.

    7.d3 a5 8.dc4 ab4 9.cb5 ba3 10.Na3 Bb4 11.Ke2 Nh6 12.f3 (12.Nf3 Qd7-/+) 12...Qd6 13.Rd1 (13.Qc1 Nf5-/+) 13...Qc5 (13...Qb6 14.Qd3 Nf5 15.Ra1–+) 14.Rc1 Qc2 (14...Ra3 15.Qc5 Bc5 16.Ba3 Ba3 17.Rc7+=) 15.Nc2 Ra2 16.Rb1 Bc5 17.Kf2 (17.Kd2 Nf5-/+) 17...Kf7 (17...Nf5 18.Bd3 Ne3 19.Ne3-/+) 18.Bd3 Rd8 19.Ke2 (19.Bh7? g6 20.Ne2 Rd2–+) 19...Nd7 (19...Nf5 20.Nh3-/+) 20.Nh3 Nb6 21.Nf2 Na4 22.Ne4 (22.Nd1 e4! 23.Be4 Bc4 24.Ke1 f5–+) 22...Be7 (22...Nb2!? 23.Rb2 Rb2 24.Nc5-/+) 23.Ba1-/+ f5 24.Rhc1? (24.Nf2 Nc5 25.Rb2 Rb2 26.Bb2 Nd3 27.Nd3–+) 24...fe4–+ 25.Be4 Bd6 26.Kf1 (26.Ke1 Rb8–+) 26...Nc5 27.Bh7 Nb3 28.Be4 Bc4 29.Kg1 Nc1 30.Rc1 Ng8 31.Bc3 Nf6 32.Bc6 Bc5 (32...Bc5 33.h3 Bb3 34.Be5 Bc2–+) 0–1. pierre – Skipslot, internet, 2006.

    7.d3=+ c5 8.dc4 bc4 (8...cb4 9.Qe4 Nd7 10.cb5=+) 9.Bc4 Bc4 10.Qc4 cb4 (10...Nd7 11.Nc3=) 11.ab4 Ne7 12.Nc3 Nd7 (better is 12...Qb6!? 13.Nb5 Kd8+/–) 13.Nb5+– (13…Qb8 14.Nc7 Kd8 15.Ne6 Ke8 16.Rd1+–) 1–0. Schuett,Matthias – Schulz Streeck,Soeren, Schleswig Holstein–ch U20, 1997.

    7.d3 cd3 8.Bd3 a6 9.Bh7 Ne7 10.Be4 c6 11.Ne2 (11.Nc3 f5 12.Rd1 Nd7=) 11...f5 (better 11...a5=+) 12.Bd3 (12.Bf3 e4 13.Nd4 ef3 14.Ne6 fg2 15.Rg1-/+) 12...e4-/+ 13.Be4 fe4 14.Qe4 Bd5 15.Qg4 Qd7 16.Qg3 Nf5 17.Qg6 (17.Qe5 Be6-/+) 17...Qf7 18.Qg4?? (18.Qf7 Kf7 19.Nf4 a5 20.Nd5 cd5 21.ba5 Ra5-/+) 18...Nd7 (better 18...Rh4 19.h3 Rg4 20.hg4 Bg2-+) 19.Nf4 (19.e4 Nh6 20.Qf3 Qf3 21.gf3 Bf7-+) 19...Rh4 20.Qd1 Rf4! 21.ef4 Bg2 22.Rg1 Bd5 23.Nd2 (23.Nc3 Bc4 24.Ne4 a5 25.ba5 Ra5-+) 23...0-0-0 24.Qc2? (better 24.Qg4-+) 24...Re8 25.Kf1 g5! 26.Rg5 (26.fg5 Ne3 Double attack; 26.Rg5 Nh4 Combination) 26...Nh4 27.Re1 (27.Rc1 Kb8 28.Qd3 Qf4-+) 27...Re1-+ 28.Ke1 Qf4?? (better 28...Bh6 29.Rd5 Qd5-+) 29.Rg8?? (better 29.Rd5 Kc7 30.Rd4 Qh2 31.Ke2+-) 29...Kb7 (better 29...Bg8 30.Qc6 Kd8-+) 30.Rh8 (30.Rg3 Qf7 31.Ke2 Qh5 32.Kf1 Nf5-+) 30...Bh6 31.Rh7 (31.Bc3-+) 31...Ng2 32.Kf1 (32.Ke2 Qg4 33.f3 Nf4 34.Ke1 Qg1 35.Nf1 Ng2 36.Qg2 Qg2 37.Rd7 Kc8 38.Rd5 cd5 39.Bd4 Qf3 40.Ng3-+) 32...Ne3 (32...Qd2 33.Rd7 Kc8 34.Qd2 Bd2 35.Rd5 cd5 36.Kg2+/-) 33.Ke2 Nc2 (33...Nc2 34.Rh6 Qh6-+) 0-1. pacalmisu (2390) - genodesis (2545), Rated Blitz game, lichess.org, 2016.

    7.d3 cd3 8.Bd3 c6 9.Bh7 Ne7 10.Be4 Attacking the backward pawn on c6 (10.Nf3=+) 10...Qd6 (10...a5!?=+) 11.Nd2 (11.Nc3 Bc4+=) 11...Nd7 (11...a5 12.ba5 Qd8 13.Bc3=) 12.Ne2 (12.Rd1 Bd5+=) 12...Rc8 (12...f5 13.Rd1 fe4 14.Ne4=) 13.Nc3 (13.Bd3 a5=) 13...a6 (13...f5 14.Rd1 Qb8 15.Bd3=+) 14.0-0-0 (better 14.Rd1 Qb8 15.Nf3=) 14...f5?? (14...Qc7 15.Nf3-/+) 15.Bf3?? (better 15.Nc4 Qb8 16.Nd6 Kd8 17.Nc8 Kc8 18.Bd3+/-) 15...e4?? (better 15...Qc7 16.Nb3 c5 17.Nc5 Nc5 18.bc5 e4 19.Ne4 fe4 20.Be4 Qc5 21.Qc5 Rc5 22.Kb1 Nd5-+) 16.Nde4+- Qd1 (16...Qc7 17.Nd6 Kd8 18.Nc8 Kc8+-) 17.Rd1 (worse 17.Bd1 fe4 18.Ne4 Rc7+-; 17.Nd1?! fe4 18.Be4 Rh6+-) 17...fe4 18.Ne4 (18.Qe4?! Bd5 19.Qf4 Bf3 20.Qf3 Nf6+-) 18...Nd5 (18...Rc7 19.Nd6 Kd8+-) 19.Ng5 Bg8 (19...Rh6 20.Ne6 Re6 21.Bd5+-) 20.Bd5 Bd5 21.Rd5! cd5 22.Qc8 Ke7 23.Bd4 (23.Qa6!? Rh6 24.Qb5 Rd6+-) 23...Rh3 (23...Rh2 24.Bc5 Kf6 25.Bf8 Rh1 26.Kd2 Nf8 27.Qf8 Kg5+-) 24.Nh3 1-0. pacalmisu (2385) - mecker (2400), Rated Blitz game, lichess.org, 2016.

    7.d3 cd3 8.Bd3 g6 9.Bb5+= Kf7 10.Nc3 a5 11.Rd1 Bd6 12.Nf3 ab4 13.ab4 Ne7 14.0-0 Nd7 (14...Nbc6 15.Bc6 Nc6 16.b5=) 15.Ne4+/- Nb6? (better 15...Qb8 16.Bc4 Nf8+/-) 16.Nf6!+- (16.Nd6?! cd6 17.Qd3 Nbd5=) 16...Kf6 17.Ne5 Be5? (better 17...Kg5 18.Nf3 Kh5+-) 18.Rd8 Rhd8 19.Be5 Ke5 20.Qc7 (20.Qc7 Kf6 21.Qb6+-) 1-0. Superfish (2225) - Plattfuss (2340), Rated Blitz game, lichess.org, 2016.

    7.d3 Nd7 8.dc4= bc4 (8...Bc4 9.Bc4 bc4 10.Qc4 a5 11.Nf3 ab4 12.ab4 Ra1 13.Ba1 Nb6 14.Qe6 Qe7=) 9.Bc4 Bc4 10.Qc4 Nb6 (10...a5 11.Nf3= ab4 12.ab4 Ra1 13.Ba1 Nb6 14.Qe6 Qe7=; 10...c5 11.Nc3 Rc8 12.Qe6 Qe7 13.Qa6 Rb8 14.b5 Nb6+=) 11.Qc2 (11.Qb5 Nd7= 12.Nc3 a5 13.ba5 Ne7 14.Nf3 c6+=) 11...Bd6 (11...c5 12.bc5 Rc8 13.Nc3 Bc5 14.Nf3= Nh6=) 12.Nc3+= Ne7 (12...a5 13.b5+= Rc8 14.Ne4 Qd7+=; 12...Qe7 13.Nf3 Nh6 14.0-0 c5+=) 13.Nge2 (13.Rd1 a5 (13...Nc4+= 14.Ne4 Nb2+=) 14.b5 Rc8+=) 13...0-0 (13...a5 14.b5+= Rc8+=) 14.0-0 (14.Rd1 Qe8+=) 14...Qe8 (14...a5+=) 15.Rad1 Qf7 16.Nb5 Qc4 (16...Rfc8 17.Bc3=) 17.Nec3 Rfd8 18.Rc1 (18.e4 Nc6+=) 18...f5 (18...a5 19.Nd6 cd6 20.ba5 Ra5 21.Ne4 Qc2 22.Rc2=) 19.e4 (19.Rfd1 a5 20.Nd6 cd6=) 19...a6 (19...a5 20.Nd6 cd6 21.b5=) 20.Nd6 cd6 21.ef5 Rf8 (21...a5 22.b5+=) 22.Ne4 (22.f6 A) worse is 22...Rf6 23.Ne4 Qc2 24.Nf6 (24.Rc2?! Rg6=) 24...gf6 25.Rc2+/–; B) 22...gf6 23.Qd1 Qe6+=) 22...Qc2 23.Rc2 Nf5 24.g4 Nh6 (better is 24...d5!? 25.gf5 de4+=) 25.Nd6+/– Ng4 (25...Rad8 26.Be5 Ng4 27.Bg3+/–) 26.h3+– Nf6 (26...Nh6 27.Be5 Nf7 28.Nf7 Rf7 29.Rc6+–) 27.Be5 Nbd5 (27...Nfd5 28.f4+–) 28.Rd1 Rfd8 29.Rc5 (better is 29.Rcd2 Ne7 30.Kg2+–) 29...Ra7? (better is 29...Ne7+–) 30.Rcd5 Nd5 31.Rd5 Re7 (31...Rad7 32.f4+–) 32.f4 Re6 (32...Red7 33.Kf2+–) 33.Kg2 (33.a4 g5+–) 33...Rg6 (33...Kf8 34.Kf3 g6 35.Ke4+–) 34.Kf3 Rh6 35.Kg4 Rg6 36.Kf5 Rf8 (36...Rh6 37.Rd3+–) 37.Ke4 Rg3 (37...Rd8 38.h4+–) 38.Ra5 Rh3 (38...Ra8 39.h4+–) 39.Ra6 h5 (39...Rd8 40.Ra7 g6 41.b5+–) 40.Ra7 Rg3 41.f5 (41.a4 h4 42.f5 Rg1+–) 41...Rg2 (41...Rg4 42.Ke3+–) 42.Kf3 (42.a4 h4+–) 42...Rg4 (42...Rg6 43.a4+–) 43.b5 Rg1 44.b6 Rf1 (44...Rb8 45.Rc7 Re1 46.Bd4+–) 45.Kg2 (45.Kg2 Re1 46.Rg7 Kh8 47.Re7 Kg8 48.b7+–) 1–0. Bulcourf,Carlos (2145) – Ortega Morales,Javier, 8th Abierto Invierno, Villa Ballester A (2), 2008.

    7.d3 Bf5 8.e4 cd3 9.Bd3 Bd7 10.Nf3 Bd6 11.0-0 Ne7 12.Rd1 0-0 13.a4 ba4 14.b5 Bg4 15.Be2 Qe8 16.Nc3 Nd7 17.Na4 Nb6 18.h3 Bh5 19.Bc1 Kh8 20.Nc5 (20.Nc3!?=) 20...Bf3-/+ 21.Bf3 Qb5 22.Ne6 Rfc8 23.Qa2 Ng6 24.Be3 Nf8 25.Nf8 Rf8 26.Be2 Qe8 27.Qc2 Qe7 28.Qc6 Qd7 29.Qc3 (29.Bb5 Qc6 30.Bc6 Rab8 31.Ra7 Nc4+=) 29...f5 30.ef5 Qf5 31.Ra5 Qg6 32.Qc1 Nd7 (32...e4 33.Qc2-/+) 33.Bb5 Nf6 34.Bd3 (34.Bc6 Rab8+=) 34...e4-/+ 35.Bc4 Bb4 36.Ra7 Ra7 37.Ba7 Bd6 38.Be3 Qh5 39.Bd4 Qf5 40.Be2 (40.Qe3 c6+=) 40...h6 41.Bc4 Re8 42.Bb3 c5 43.Be3 Qe5 44.g3 Be7 45.Bf7 Rf8 46.Qc4 Qf5 47.Be6 Qf3 48.Qc2 Re8 49.Bc4 Qh5 50.Kg2 Qf3 51.Kh2 (51.Kg1!?=) 51...Qf5 52.Qb3 Bf8 53.Rd2 Kh7 54.Bf4 Qc8 55.Qb1 g5 56.Be3 Qc7 57.Rb2 Qe5 58.Rb6 (58.Rb7 Re7+=) 58...g4 59.Qb5 Bg7 60.h4 Rd8 61.Rc6 The pressure on the isolated pawn grows 61...Rd1 62.Be6 (62.Rc5?? Qa1 63.Bg8 Ng8–+; 62.Qc5?! Qc5 63.Rc5 Nd7=; 62.Bc5?? Qa1 63.f4 Rd2 64.Be2 Qf1–+) 62...Nd5 63.Bd5 Rd5 (63...Qd5 64.Qb7 h5 65.Qc7+=) 64.Qb7+= Rd6 65.Rc5 Qe6 66.Rc7 Qg6 67.Kg2 Kg8 (67...h5 68.Bc1 Rd8 69.Bb2+–) 68.Qc8 (68.h5 Qf6+–) 68...Kh7? (68...Bf8 69.Re7 Rc6 70.Qa8+/–) 69.Qf8 (better is 69.h5!? Qh5 70.Rg7 Kg7 71.Qc7 Qf7 72.Qd6+–) 69...Rf6+/– 70.Qe7 Kg8 71.h5 (71.h5 Qf7 72.Qd8 Qf8 73.Qd5 Kh8 74.Qb7+–) 1–0. Degterev,Pavel (2345) – Leontiev,Gennady (2390), Yury Sakharov Memorial B, 2006.

    7.Nf3 a5!? 8.ba5 Nc6 -/+.

    7.Nf3 Nc6 8.d3=+ Bb4 9.ab4 Nb4 10.Qc3 Nd3 11.Bd3 Qd3 12.Ne5 Qd5 (12...fe5 13.Qe5) 13.Nf3 h5 (better is 13...c5!?=) 14.Qb4+/– Bd7 15.Nc3 Qc6 16.e4 a6 17.Nd5 h4 18.h3 0-0-0 (better is 18...Kf7+–) 19.0-0 Be6 (19...Re8 20.Rfe1+–) 20.Nd4 Qd7 (20...Qd6 21.Ne6 Qe6+–) 21.Ra6 Bd5 22.Nb5 Qe7 23.Na7 Kd7 24.Qa4 c6 25.ed5 Ke8 26.Nc6 Qd7 27.Ra7 Qa7 28.Qa7 1–0. mrkt (2440) – Tupelo (2005), ChessWorld.net, 2003.

    7.Nc3 a6

    8.a4 Bb4 9.ab5 Bc3 10.Bc3 Qd5 11.ba6 Na6 (11...Ra6? 12.Ra6 Na6 13.Qa4 Kf7 14.Qa6+–) 12.Ra4 (12.e4 Qb7+=) 12...Nc5 Black plans e4 (12...Qc6 13.d3+=) 13.Rc4 e4 (13...Qd6 14.Rb4=) 14.Rd4 (14.Qb1 c6=) 14...Nd3+= 15.Bd3 ed3 16.Qd3 Qg2 17.Qe4 Qe4 18.Re4 Kf7 19.Rb4 (19.Nf3 Ne7+=) 19...Ne7 20.e4 Rhb8 (20...c5 21.Rb5 Rhc8 22.Rb7+=) 21.Rb8 Rb8 22.f3 (22.Ke2 Rb1+=) 22...Rb1 23.Ke2 Ng6 24.Bd4 (24.h4!?-/+) 24...Bh3!–+ 25.Kf2 (25.Nh3 Rh1 Pinning (25...Rh1 Deflection)) 25...Nf4 26.Kg3 (26.Be3 Rf1 27.Kg3 Bg2–+) 26...g5 27.Be3 (27.Nh3 Rh1 28.Nf4 gf4 29.Kg2 Rd1–+) 27...Bg2 28.Bf4 Bh1 29.Be3 Rf1 30.Bf2 (30.Bd4 Kg6–+) 30...h5 31.h3 (31.Be3 Ke6 32.d4–+) 31...h4 (31...h4 32.Kh2 Rf2 33.Kh1 Rd2–+) 0–1. Carstensen,Jan Christian – Timmermann,Felix Uwe (1660), Schleswig Holstein–chA U16, 2000.

    8.a4 Bb4 9.ab5 c6 10.ba6 Na6 11.Ra4+=.

    8.a4 Bb4 9.ab5+= Nd7 10.Ra6= Ra6 (10...Nc5 11.Re6 Ne6 12.Bc4=) 11.ba6 Nc5 12.Nf3 (12.a7 Ne7=) 12...Bc3 (12...Qa8 13.Nb5 Na6 14.Qa4=) 13.Bc3 (13.Qc3 Qb8+=) 13...Ne7 (13...Qa8 14.Bb2 Qa6 15.d4=) 14.Bb4 Nd3 15.Bd3 Qd3 16.Qd3 cd3 17.0-0 Kd7 18.Rc1 (18.Ra1 Nd5 19.Bc5 Kc6=) 18...Nd5 (18...Nc6 19.Bc5+=) 19.Bc5= Ra8 20.e4 Nb6 (worse is 20...Ra6 21.ed5 Bd5 22.Ne1+=) 21.h3 (21.Rc3 Ra6 22.Rd3 Ke8+=) 21...Na4 22.Ne1 Nc5 23.Rc5 Ra6 24.Nd3 Kd6 25.Rc3 (25.Rc2 Ra5+=) 25...Ra1 (25...Ra2 26.Nc5 Bc8 27.Nb3+=) 26.Kh2 Ra5 27.Nb4 (27.Kg3 g6+=) 27...Ra4 28.Rd3 Kc5 29.Nd5 c6 (29...Re4 30.Nc7 Bc4 31.Rd8+=) 30.Nc7 Ba2 31.f3 Ra7 32.Ne8 Re7 33.Rd8 Be6 34.g4 (34.h4!?+=). Bulcourf,Carlos (2285) – Julia,Ernesto (2370), Villa Martelli op2, 1999.

    8.a4 c6 9.ab5 Bb4 10.ba6 Na6 11.f4+=.

    8.d3 a5 9.ba5 Ra5 10.dc4 bc4=.

    5.c4 c5

    6.cd5 Bd5 7.b5 Bd6 8.Nc3 Be6 9.Ne4 Be7 10.Qc2 Bf5? (better is 10...Qd5+/–) 11.Nf6!+– Nf6 (11...Bf6 12.Qf5 Discovered attack; 11...gf6 12.Qf5 Discovered attack; 11...Nf6 12.Qf5 Discovered attack) 12.Qf5 Nbd7 13.Be5 (13.Nf3!? g6 14.Qc2 Rf8+–) 13...Ne5 14.Qe5 0-0 15.Nf3 Bd6 (15...Qd7 16.Bc4 Kh8 17.Qe6+–) 16.Qe6 Kh8 17.Ng5 Qe7 18.Bc4 Qe6 19.Be6 Bc7 20.f4 (20.Rc1!? h6 21.Nf7 Kh7 22.Rc5 Bb6+–) 20...h6 21.Nh3 (21.Nf3 g6+–) 21...Rfe8 22.Bb3 Rad8 23.0-0-0 Ne4 24.Bc4 (better is 24.Bc2!?+/–) 24...Ba5+= The pressure on the backward pawn d2 grows 25.d4?? (better is 25.f5+=) 25...cd4-/+ 26.Rd4? (better is 26.Bf7 Rc8 27.Kb2–+) 26...Bd2?? (better is 26...Rd4 27.ed4 Rc8–+) 27.Kc2+= Be3 28.Rd8 Rd8 29.Rd1 Rd1 30.Kd1 Nd6 (30...Bc5!?+=) 31.Bd3+/– Kg8 32.g4 Kf8 33.Ke2 Bd4 34.Nf2 Ke7 35.h4 Bf6 36.g5 hg5 37.hg5 Bd4 38.Nd1 Nf7 39.Ne3 Bc5 40.a4 Nd8 41.Nf5 Kf7 42.Kf3 Kf8 43.Ke4 b6 44.Kf3 (44.Ke5!? Nf7 45.Ke6 g6+–) 44...Ne6+/– 45.Kg4 Nd4 46.Ne3 (better is 46.Nh4+–) 46...Nb5+= 47.ab5 ½–½. Vermaas,Fred – Wurm,Tamas, IECG, 2004.

    6.cd5 Bd5 7.bc5 Bc5 8.Nc3 Be6 9.Ne4 Bb6 10.Bb5 Nc6 11.Nf3 Nge7 12.d4 0-0 13.0-0 ed4 14.Bc6 Nc6 15.Nd4 Nd4 16.Bd4 Bd4 17.Qd4 Qd4 18.ed4 Rfd8 19.Rfd1 Rac8 20.Nc5 Bd5 21.Rac1 b6 22.Na4? (better is 22.Nd3+=) 22...Bb3–+ 23.Rc8 Rc8 24.Nb2 (24.Nb6 ab6 25.Rb1–+) 24...Bd1 25.Nd1 (25.Kf1 Bh5 26.Ke1 Re8 27.Kf1 Be2 28.Ke1 Ba6 29.Kd2 Re2 30.Kc1 Rf2–+) 25…Rc1 (25...Rc1 26.Kf1 Rd1 27.Ke2 Rd4–+) 0–1. Fournier,Frederic (1790) – notrd, rated blitz game (3/0), 2002.

    5.c4 c6

    6.Qb3 Nd7 A) 7.Nc3 Ne7 8.Nf3 a5 9.d4 ab4 10.ab4 Ra1 11.Ba1= e4=; B) 7.Nf3 a5 8.Nc3 (8.cd5 Bd5 9.Bc4 Bc4 10.Qc4 ab4 11.ab4 Ra1+=) 8...ab4 (8...Ne7 9.d4 ab4 10.ab4 Ra1 11.Ba1 Bg4=; 8...dc4 9.Bc4 Bc4 10.Qc4 Nb6 11.Qe4 ab4=) 9.ab4 Ra1 10.Ba1 Ne7 11.Bb2 g5=; C) 7.d4 C1) 7...a5 C11) 8.ba5 Qa5 (8...ed4 9.Bd4 Qa5 10.Nd2 b6 11.Ngf3 Qa4=) 9.Bc3 Qa4 10.Qa4 Ra4 11.c5 Bf5+=; C12) 8.Nf3 e4 (8...ab4 9.ab4 Ra1 10.Ba1 Qe7 11.c5 b6=) 9.Nfd2 ab4 10.ab4 Ra1 11.Ba1 f5=; C2) 7...Bd6 8.Nd2 (8.Nc3 Ne7 9.Nf3 e4 10.cd5 Bd5 11.Nd5 cd5=) 8...Qe7 (8...Ne7 9.e4 0-0 10.Ngf3 ed4 11.Nd4 Bf7+=; 8...ed4 9.Bd4 Ne7 10.Ngf3 Ne5 11.c5 Bc7=) 9.Be2 Nh6 10.e4 de4 11.Ne4 ed4=.

    6.Qb3 Ne7 7.Nf3 (7.d4 Nd7 (7...Ng6 8.Nf3 e4 9.Nfd2 Be7 10.Nc3 Qd7 11.cd5=) 8.Nf3 e4 9.Nfd2 f5 10.Nc3 Nf6 11.c5=; 7.Nc3 A) 7...a5 8.b5 (8.ba5 Nd7 9.d4 ed4 10.ed4 Qa5 11.c5=) 8...Nd7 9.d4 Rc8 10.Nf3 e4 11.Nd2=; B) 7...Nd7 8.Nf3 a5 9.d4 ab4 10.ab4 Ra1 11.Ba1=) 7...Nd7 (7...e4 8.Nd4 Bg4 9.Nc3 a5 10.ba5 Nd7 11.h3+=) 8.Nc3 (8.d4 dc4 9.Bc4 Bc4 10.Qc4 e4 11.Nfd2+=) 8...Nb6 (8...a5 9.d4 ab4 10.ab4 Ra1 11.Ba1=) 9.c5 (9.d3 a5 10.Be2 a4 11.Qa2=) 9...Nd7 (9...Nc4 10.Bc1 Qd7 11.Be2=) 10.d4 (10.Be2 Ng6 11.0-0+=) 10...e4 (10...b6 11.Ba6=) 11.Nd2 Bf7 12.Be2 g6 13.0-0 Bg7 14.b5 0-0 15.a4 Qc7 16.Ba3 f5 17.b6 ab6 (17...Qd8!?=) 18.cb6+= Qd8 19.Bd6 Re8 20.Bc7 Qc8 21.a5 Nb8 22.Na4 Na6? (better is 22...Nd7!?+/–) 23.Ba6+– Ra6 24.Nc5 Qa8 25.Na6 Qa6 26.Qb4 Nc8 27.Nb3 Bf8 28.Nc5 Bc5 29.Qc5 Re6 30.Rfe1 Be8 31.Qc2 Nd6 32.Bd6 Rd6 33.Qe2 Rd7 34.Qa6 ba6 35.Rec1 Rb7 36.Rc2 Kf7 37.Rac1 Ke6 38.Kf1 Kd6 39.Ke1 Bd7 40.Kd2 Rb8 41.h3 h5 42.h4 Rb7 43.Ke1 Rb8 44.Kf1 Rf8 45.b7 Kc7 46.Rb2 Rb8 47.Rcb1 c5 48.dc5 Bc6 49.Rb6 Rb7 50.Rb7 Bb7 51.Rb6 Bc6 52.Kg1 f4 53.Ra6 fe3 54.fe3 Be8 55.Ra8 (55.Re6 Bb5+–) 55...Bd7 (55...Bb5 56.Rg8 Kc6 57.Rg6 Kc5 58.a6 Ba6 59.Ra6+–) 56.a6 Bg4 57.Rg8 Kc6 (57...Be6 58.a7 Bg8+–) 58.a7 Kc5 59.a8Q Kc4 60.Rg6 (60.Qa4 Kc5 61.Rg6 Be6 62.Re6 d4 63.Rc6 Kd5 64.Qb5) 60...Kd3 (60...Bd1 61.Rc6 Kb3 62.Qb8 Ka3 63.Ra6 Ba4 64.Qb5 d4 65.Ra4) 61.Qa3 (61.Qd5 Ke3 62.Qc5 Ke2 63.Rd6 e3 64.Qb5 Ke1 65.Qf1) 61...Ke2 (61...Kc2 62.Rc6 Kd2 63.Kf2 Be6 64.Qc3 Kd1 65.Qd4) 62.Rg4! hg4 (62...hg4 63.Qa2 (63.h5)) 63.h5 Kd2 64.h6 d4 (64...Kd1 65.h7 Kc2 66.h8Q Kd1 67.Qhb2 d4 68.Qaa1) 65.h7 d3 (65...Kc2 66.Qa4 Kb1 67.Qd1 Ka2 68.Qc2 Ka3 69.h8Q Kb4 70.Qd4 Kb5 71.Qca4) 66.Kf2 (66.Qb4 Kc2 67.h8Q Kd1 68.Qa1 Ke2 69.Qae1) 66...g3 67.Kg3 Ke3 (67...Ke2 68.h8Q Kd1 69.Qh5 Kd2 70.Qb2 Ke3 71.Qc5) 68.h8Q Kd2 (68...Ke2 69.Qh5 Ke3 70.Qc1 d2 71.Qc3) 69.Qhb2 1–0. Schwartz,Simon – Stapel,Marko, Salzwedel op, 2000.

    6.Qc2 a5 7.cd5 cd5 8.Bd3 =+.

    6.Qc2 Bd6 7.c5 Bc7 8.Nf3 Ne7 9.b5 (9.Be2 b6=) 9...Nd7 10.a4 (10.d4 0-0=+) 10...0-0 11.Be2 g5 (11...Bf5!? 12.d3 Ba5 13.Nbd2 Rc8=+) 12.0-0= h5 (12...g4 13.Ne1=) 13.Nc3 (13.d4 g4 14.Nh4 e4+=) 13...Rf7 (13...Nc5 14.Ba3 Bf5 15.d3=) 14.a5 (14.d4 g4 15.Nh4 Qb8+=) 14...Ba5 15.bc6 bc6 (worse 15...Nc6 16.Ng5 fg5 17.Qg6 Kf8 18.Qe6 Bc3 19.Bc3 Nc5 20.Qh6 Kg8 21.f4+=) 16.h3 (16.d4 Bf5 17.Qd2 Rb8=) 16...Rg7 (16...g4 17.hg4 hg4 18.Nh2-/+) 17.Na4 (17.d4 g4 18.hg4 hg4=+) 17...Bc7 (17...g4 18.hg4 hg4 19.Ne1-/+) 18.Rfb1 g4 19.hg4 hg4 20.Ne1 Qe8 21.g3 (21.Ba6 g3-/+) 21...Qh5-+ 22.Bf1 Rh7 23.Bg2 Qh2 24.Kf1 Rf8 (24...a6 25.Bc3-/+) 25.Nc3 (25.Bc3 Rb8-/+) 25...a5-+ 26.Ne2 (26.Ba3 Rb8-/+) 26...f5 (26...Rb8!? 27.Nc1-+) 27.f4-/+ d4! 28.ed4 (28.fe5 de3 29.d4 Bd5-+) 28...ef4 29.gf4 Bd5 30.Qd3 (better 30.Qa4-+) 30...Bg2 31.Ng2 Rh3 32.Qc4 Nd5 33.Ra3 N7f6 34.Ng1 Ne4 35.Rd3 (35.Rd1 Ra3 36.Ba3 Ng3 37.Kf2-+) 35...Ng3 36.Kf2 Re8 37.Re3 Re3 38.de3 (38.Qd5 cd5 39.de3 Ne4 40.Kf1 Rf3 41.Ke1 Qg1 42.Ke2 Qg2 43.Kd3 Qd2) 38...Ne4 39.Kf1 0-1. kaalmakreel (2170) - sapolion (2450), ChessWorld.net, 2020.

    6.Qc2 Bd6 7.Nf3 Ne7 8.Be2 0-0 9.0-0 Nd7 10.d3 Qe8 11.Nbd2 Qg6 12.Rfe1 Rac8 13.Nf1 Bb8 14.Rac1 f5 15.cd5 cd5 16.Qa4 f4 17.ef4 Rf4 18.Rc8 Nc8 19.Ne3 d4 20.Nc4 Bh3?? (better 20...Ncb6 21.Qd1 Nc4 22.dc4 Bc7=+) 21.g3+/- Rf3 (better 21...Ncb6!? 22.Nb6 ab6+/-) 22.Bf3+- Qd3 23.Bb7?? (better 23.Bg2 Qc4 24.Bh3+-) 23...Qc4-+ 24.Rc1 Ncb6 25.Rc4 Na4 26.Rc8 Kf7 27.Bc1 Nc3 28.Bd2 Ne2 29.Kh1 Bd6 30.Bc6? (better 30.Ra8-/+) 30...Nb6-+ 31.Rd8 Be7 32.Rb8 Be6 (better 32...Bc8 33.Bb7 Bf5-+) 33.Be8?? (better 33.Rb7 h6 34.b5-+) 33...Kf6 34.h4 (34.Bc6 Nc4 35.Be1 d3-+) 34...Bd5 35.Kh2 Nc4 (better 35...Bd6 36.Rd8 Bc7 37.Bg5 Ke6 38.Rd5 Nd5-+) 36.Bc1?? (36.Bg5 Ke6 37.Bh5 Bg5 38.Bg4 Kf7 39.hg5-+) 36...e4 (better 36...Nc1 37.Rc8 d3-+) 37.Bg5 Ke6 38.Be7 Ke7 39.Bb5 (39.Bh5 d3 40.Rb5-+) 39...d3 40.Ba4 (40.Re8 Kf6 41.Ba4-+) 40...Nb2 41.Re8 Kd6 42.Rd8 Ke5 43.Bd7 (43.Be8 d2 44.Bf7 Nc3-+ (44...Bf7?! 45.Rd2 Nc4 46.Re2-/+)) 43...Kd4 (better 43...d2 44.Bc6 Nc3-+ (44...Bc6?! 45.Rd2 Nc4 46.Re2-+)) 44.Be6 (44.Bg4 Nc4 45.Kg2 Nc3-+) 44...Nc3 45.Bd5 (45.Kg1-+) 45...Nd5 46.Rc8 d2 47.Rd8 d1Q 48.Kh3 (48.Rc8 Nd3 49.h5 Nf2 50.Rc4 Kc4 51.Kg2 Ne3 52.Kf2 Qd2 53.Kg1 Qg2) 48...Qf3 49.Rd5 (49.Rf8 Qf8 50.f4 ef3 51.h5 f2 52.Kg4 Qc8 53.Kh4 Ne3 54.b5 Qg4) 49...Kd5 50.h5 (50.Kh2 Qf2 51.Kh3 Nd1 52.a4 Ne3 53.h5 Qf3 54.b5 Qh5) 50...Qf2 (50...Nd3 51.Kh4 Nf2 52.Kg5 Qf6) 51.Kg4 (51.b5 Nc4 52.b6 Ne3 53.ba7 Qg2 54.Kh4 Qh2 55.Kg5 Qg3) 51...Qf3 52.Kh4 Qf6 (52...Nc4 53.h6 Ne5 54.hg7 Qg4) 53.Kg4 (53.Kh3 e3 54.b5 e2 55.b6 e1Q 56.ba7 Qef1 57.Kg4 Q1f5) 53...e3 54.Kh3 (54.h6 e2 55.hg7 Qg7 56.Kf3 e1Q 57.g4 Qge5 58.b5 Q1g3) 54…e2 (54...e2 55.h6 e1Q 56.hg7 Qh1 57.Kg4 h5) 0-1. pacalmisu (2355) - Bole11 (2410), Rated Blitz game, lichess.org, 2016.

    6.Qc2 Nd7 7.d3 Bd6 8.Nd2 Ne7 9.Ngf3 0-0 10.Be2 Rc8 (10...b6 11.0-0=) 11.e4 d4 12.c5 Bc7 13.Nc4 b6 14.cb6 ab6 15.0-0 b5 16.Ncd2 Nb6 (16...Bd6 17.Nb3-/+) 17.Rac1 Na4 18.Ba1 Bd6 19.Nb3 (19.Qb1 Qd7-/+) 19...c5-/+ 20.bc5 Nc5 21.Nc5 Bc5 22.Qb2 (22.Qb1-/+) 22...Bd6 (22...Qa5!? 23.Qb1-+) 23.Bd1 (23.Rc8!? Qc8 24.Bd1=+) 23...Rc1-/+ 24.Qc1 Qa5 25.Bb2 Rc8 26.Qa1 Nc6 (26...Ng6 27.Qb1-/+) 27.h3 (27.Be2 Ra8 28.Qb1 Qb6-/+) 27...Qa7 (27...b4 28.ab4 Qa1 29.Ba1 Nb4 30.Bd4 ed4 31.Nd4-+) 28.Nh4 g6 29.f4 ef4 30.Nf3 Be5 31.Ne5 (31.Qb1 Qe7-/+) 31...fe5 (31...Ne5 32.Bd4 Rc1 33.Qc1 (33.Ba7?! Ra1 34.d4 Bc4=) 33...Qd4 34.Kh2 Nd3 35.Qd2+/-) 32.Bg4 (32.Qb1 b4 33.ab4 Nb4-+) 32...Bg4-+ 33.hg4 Qf7 34.g3 g5 (34...Qe6 35.Qd1 fg3 36.Kg2-+) 35.Qc1 (35.gf4 gf4 36.Qd1 Rf8-+) 35...Ne7 36.Qd2 (36.Qb1 Qe6 37.Qd1 Qa2-+) 36...Qe6 (36...Qb3 37.Rc1-+) 37.Qb4? (37.Qd1 fg3 38.Kg2 Qa2-+) 37...Rc2?? (better 37...Ng6 38.Qb5 Qg4-+) 38.Qb5-/+ Kf7 (38...fg3?! 39.Qe8 Kg7 40.Qf8 Kg6 41.Qe8 Kg7 42.Qf8 Kg6 43.Qe8 Kg7=) 39.Rf2 (39.a4!?-/+) 39...Rf2-+ 40.Kf2 Qg4 41.Qe5?? (better 41.gf4 gf4 42.Qc4 Kg6 43.Bd4 ed4 44.Qd4 Qg3 45.Kf1-+) 41...Qg3 42.Kf1 Qd3 43.Kg1 Qb1 44.Kg2 Qb2 45.Kh3 (45.Kg1 h6 46.Qd6-+) 45...Qf2 (45...g4 46.Kh4 Qh2 47.Kg4 Qg3 48.Kh5 Qh3 49.Kg5 h6 50.Kf4 Ng6) 46.Qg5-+ Qf3 47.Kh2 d3 48.e5 d2 49.Qf6 Ke8 50.e6 Qg3 (50...Qg3 51.Kh1 d1Q; 50...Qf2 51.Kh3 Qg3) 0-1. cipiripi (2265) - ZeruHmyz (2345), Rated Blitz game, lichess.org, 2015.

    6.Qc2 Nd7 7.d4 Nh6 (7...Bd6 8.Nf3+=) 8.c5 (8.de5 Ne5 9.cd5 Qd5 10.Be5 Qe5=) 8...e4 (8...Bf5 9.Qd1=) 9.Nd2 Be7 10.Ne2 f5 (10...Bg4 11.h3 Bf5 12.Ng3=) 11.Nf4+= Bf7 12.Be2 0-0 13.b5 (13.0-0 Bg5+=) 13...g5 (13...cb5 14.Bb5 a6 15.Be2+=) 14.Nh3 (14.bc6 bc6 (worse is 14...gf4 15.cd7 fe3 16.fe3+/–) 15.Nh3 Be6=) 14...Bg6 (14...Be6 15.Qa4 cb5 16.Qb5=) 15.Qb3 (15.0-0 cb5 16.Qb3 Qc7+=) 15...f4 (15...a6 16.bc6 bc6+=) 16.f3 (better is 16.0-0!?+=) 16...ef3+= 17.gf3 White fights for the Initiative 17...Rf7 (17...Bf5!? 18.Nf2 fe3 19.Qe3 Bf6 20.bc6 bc6+=) 18.e4+= Nf8 (18...de4 19.fe4 cb5 20.Bb5+/–) 19.Nf2 Kg7 (19...Bf6 20.h4 gh4 21.e5+=) 20.Nd3 Rf6 (20...g4 21.bc6 bc6 22.ed5+=) 21.h4+/– gh4 (21...g4 22.e5 Rf7 23.fg4 Bh4 24.Kd1 cb5 25.Bf3 Bd3 26.Qd3+/–) 22.Rh4 (22.bc6 bc6 23.Qb7 de4 24.fe4 Nf7+/–) 22...Ne6 23.0-0-0 (23.bc6 bc6 24.Ne5 Rb8+/–) 23...Rf8 (23...de4!? 24.Ne4 Be4 25.fe4 Nd4 26.Bd4 Qd4 27.Nf4 Qc5 28.Kb1 Kh8=) 24.Rh2+/– Bf6 (better is 24...cb5 25.ed5 Ng5+/–) 25.Nb4 (25.Rdh1 Nf7 26.e5 Bg5+/–) 25...Rc8 (25...Nd4 26.Bd4 Bd4 27.bc6+/–) 26.ed5 (26.e5!? Bg5 27.bc6 bc6 28.Qa4+/–) 26...cd5+= 27.Nc2 (27.Nd5!? Nd4 28.Qc4+=) 27...Nf5+= d4 becomes the focus of attention 28.Nb1 Re8 29.Qa4 Re7 30.Bd3 (30.Rg1 Ng3 31.Nc3 Kh8+= (31...Ne2?! 32.Ne2 Qd7 33.Nb4=)) 30...b6 (30...Ng5 31.Bf5 Bf5 32.Rg1+=) 31.c6= Ng5 (31...Ne3 32.Rg1 Ng5 33.Ne3 fe3+=) 32.Nd2 (32.Bf5 Bf5 33.Rg1 Kh8=) 32...Qd6 (32...Ne3!? 33.Bg6 Nd1-/+ (worse is 33...hg6 34.Re1=; 33...Kg6?! 34.Re1=)) 33.Bc3 (33.Re1 Re1 34.Ne1 Qc7+=) 33...a5= Black launches an attack 34.Qb3 (34.Rg1 Ne3 35.Bg6 A) 35...Kg6 36.Ne3 fe3 37.Qc2 Kf7 38.Rh7 Ke6 39.Rg5 ed2 40.Kd1 Rh7 41.Qf5 Ke7 42.Qh7 Ke6 43.Qf5 Ke7 44.Qc8 Bg5 45.Qb7 Kf6 46.Bd2 (46.Qb6 Qa3 47.Qd8 Kg6 48.Qe8 Kg7 49.Qe5 Kg6 50.Bd2 Qa4 51.Ke1 Bh4 52.Ke2 Qb5 53.Ke3 Qc6+/–) 46...Qa3 47.Bg5 Kg5 48.Qg7 Kf4 49.Qf7 Ke3 50.Qd5+–; B) 35...hg6=) 34...Rce8 (34...Ne3 35.Bg6 Nd1+=) 35.Bb2 (35.Kb1 Rc7+=) 35...Re3 Attacking the isolated pawn on f3 (better is 35...Ne3!? 36.Bg6 hg6=) 36.Ne3+/– fe3 37.Nf1 Nf3 38.Rg2 (better is 38.Bf5!? Nh2 39.Bg6 hg6 40.Nh2=) 38...N5d4+= 39.Qc3? (39.Bd4 Nd4 40.Qa4 Qc5 41.Kb1–+) 39...e2–+ 40.Re1 (40.Bg6 ed1R (40...ef1B?! 41.Rf1 Qf4 42.Kd1 hg6 43.Qd3–+; 40...ef1Q?! 41.Rf1 Qf4 42.Kd1 hg6 43.a4–+) 41.Kd1 Re1 42.Qe1 Ne1 43.Ke1 hg6–+) 40...Qf4 41.Kb1 Ne1 42.Qe1 (42.Rg6 hg6 43.Qe1 ef1Q 44.Qf1 Qf1 45.Bf1 Re1 46.Ka2 Nc6 47.Bf6 Kf6–+) 42...Qf1 (42...ef1Q 43.Rg6 (43.Qf1?? Qf1 44.Ka2 Qg2–+) 43...hg6 44.Qf1 Qf1 45.Bf1 Re1 46.Ka2 Nc6 47.Bf6 Kf6 48.bc6 Rf1 49.Kb2–+) 43.Rg6 hg6 44.Qf1 (44.Bc3 Qe1 45.Be1 Nf3–+) 44...ef1Q 45.Bf1 Nf5 (45...Nf5 46.Bd3 Re1 47.Kc2 Bb2 48.Kb2 Kf6–+; 45...Re1 46.Ka2 Rf1 47.c7–+) 0–1. Nemec,Zdenek – Straslipka,Jiri, CSR CF, 1989.

    6.Qc2 Nd7 7.Be2 Ne7 8.d4 e4 9.f3 Bf5 10.Nd2?? ef3–+ 11.Bd3 Bd3 12.Qd3 fg2 13.Kf2 gh1Q 14.Ngf3 Qa1 15.Ba1 Nb6 16.c5 Nd7 17.e4 Ng6 (17...Ng6 18.ed5 cd5–+; 17...Qc7 18.Qe2–+) 0–1. Istvanny – thotares (1695), internet, 2007.

    6.Qc2 Nh6 7.d4 e4 (7...Bd6 8.de5 fe5 9.Nf3=) 8.cd5 cd5 (worse is 8...Qd5 9.Nc3 Qb3 10.Qb3 Bb3 11.Ne4+/–; worse is 8...Bd5 9.Nc3+=) 9.Bb5 Nd7 10.Nc3 a6 11.Ba4 (11.Be2 a5=) 11...b5 (11...Rc8 12.Qd2=) 12.Bb3+= Rc8 13.Qb1 (13.Qe2 Nb6 14.Ne4 Bg4+=) 13...Nb6= 14.Nge2 Bd6 (14...Nc4=) 15.Qa2 (15.Ne4 Bf5 16.Nd6 Qd6+=) 15...Bb8 (better is 15...Nc4!?-/+) 16.a4 (16.Ne4 Bh3 17.Nc5 Bg2+/–) 16...ba4 (16...Qe7 17.ab5 ab5 18.Qa6+/– (18.Nb5?! Qb4 19.Nec3 Nc4=)) 17.Na4 Na4 (17...Bd7 18.Nec3 Ba4 19.Ba4 Kf8 20.Bb3+/–) 18.Qa4+/– (worse is 18.Ba4 Kf7=) 18...Kf7 19.Qa6 Bd6 20.Qb5 (20.0-0!?+/–) 20...Rb8+= 21.Ra7 Kg6 22.Rb7 Rb7 (22...Qe8 23.Qb6 (worse is 23.Bd5 Qb5 24.Rb5 Rb5 25.Be6 Rb4+=) 23...Qd7 24.Rd7 Rb6 25.Rd6 Rd6 26.b5=) 23.Qb7 Qb8 24.Bd5 Bd5 25.Qd5 Qb4 26.Bc3 (better is 26.Kf1 Qb2 27.g4 Ng4 28.Qe4 Kh5 29.Ng3 Kh4 30.Nf5 Kh5 31.Qf3 Qf2 32.Qf2 Nf2 33.Kf2+=) 26...Qb1-/+ 27.Kd2 Qd3 (27...Qh1 28.Qd6 Nf5 29.Qd5 Qh2 30.Qe4+–) 28.Kc1?? (better is 28.Ke1 Rb8 29.f3 ef3 30.gf3 Rb1 31.Kf2 Rh1 32.Qd6 Qe3 33.Ke3 Nf5 34.Kd3 Nd6 35.Bb4–+) 28…Ba3 (28...Ba3 29.Bb2 Rc8 30.Qc5 Bb2 31.Kb2 Rb8 32.Qb5 Rb5 33.Ka2 Qc4 34.Ka3 Qb3#) 0–1. De La Orden Alcocer,A (1855) – Garcia Diaz,VM (2185), Madrid ESP, 1st Chamartin Open, 2012. (=1.c4 c6 2.b4 d5 3.e3 e5 4.Bb2 f6 5.a3 Be6)

    6.c5 a5 7.d4 b6 8.de5 ab4 9.ab4 Ra1 10.Ba1 bc5 11.bc5 Bc5 12.Nf3=.

    6.c5 a6 7.Nf3 (7.d4 ed4 8.Bd4 a5=) 7...Bg4 (7...b6 8.cb6 Qb6 9.Nc3=) 8.Be2 Nd7 (8...a5 9.0-0=) 9.h3 Be6 10.Qc2 (10.d4 e4 11.Nfd2 f5=) 10...g5 (10...Nh6 11.Nc3=) 11.Nc3 Bf7 12.d3 (12.d4 Bg6 13.Qd1 Bg7+=) 12...Bg6 (12...h5 13.d4+=) 13.h4 (13.0-0 Bg7+=) 13...g4 14.Nd2 h5 15.g3 (15.0-0 Qc7=) 15...Bh6 (15...Ne7 16.0-0=) 16.0-0 Qe7 (16...Ne7 17.Nb3=) 17.Rae1 (17.e4 Bd2 18.Qd2 d4=) 17...Rh7 (17...0-0-0 18.a4=) 18.Na4 Rf7 19.e4 Bd2 20.Qd2 de4 21.de4 Be4 22.Bc4 Bd5 (22...Bf3!? 23.Bf7 Qf7+=) 23.Bd5+/– cd5 24.Qd5 Rb8 25.Bc1 (better is 25.f4 gf3 26.Qf3+/–) 25...b5? (25...f5!?+=) 26.cb6! Nb6 27.Nb6 (27.Qa5 Na4 28.Qa4 Qd7 29.Qa6 Ne7+/–) 27...Rb6 28.Rd1 (28.f4 Qd6 29.Qe4 Ne7+/–) 28...Rb8 (28...Qc7 29.Qd3+/–) 29.Be3 (29.Qc6 Kf8+–) 29...Qd7 (29...Qb7 30.Qe6 Ne7 31.Rd6+/–) 30.Qb3 Qc7 (30...Qc6 31.Bc5 Ne7 32.Rd6 Qc5 33.Qf7 (33.bc5? Rb3 34.Ra6 Nf5–+) 33...Kf7 34.bc5+–) 31.Qe6 (31.Bc5 Qc5 32.Qf7 Kf7 33.bc5 Rc8 34.Rd7 Ke8+–) 31...Kf8 (31...Ne7 32.Qa6 Qc8 33.Qa4 Kf8 34.Rd3+–) 32.Bc5 (32.Qf5 a5 33.Bc5 Kg7 34.Qh5 Ra8+–) 32...Kg7 33.Qf5 (better is 33.Qa6 Rb7 34.Qe6+–) 33...Rd8? (better is 33...Qb7!?+–) 34.Qh5 Rd1 35.Qg4 (35.Rd1?! Qc8+–) 35...Kh8 36.Rd1 Qb7 (36...a5+–) 37.Rd8 Rg7 (37...Qg2 38.Kg2 Rg7 39.Qh5 Rh7 40.Rg8 Kg8 41.Qe8 Kg7 42.Bf8 Kg8 43.Bh6) 38.Qh5 Rh7 39.Qg6 (39.Rg8 Kg8 40.Qe8 Kg7 41.Bf8 Kg8 42.Bh6) 39...Qf7+– 40.Qf7 Rf7 41.Ra8 Rd7 (41...Kg7 42.Ra6 Ne7 43.b5+–) 42.Ra6 Rd1 (42...Kg7 43.b5 Nh6 44.b6+–) 43.Kg2 Kg7 (43...e4 44.b5 Rd5 45.Rc6+–) 44.Be3 (44.Ra7 Kg6 45.g4 Rd8+–) 44...f5 (44...Kf7 45.g4+–) 45.Bg5 e4 (45...Rd5 46.Ra5 Rd3 47.Re5 Ra3 48.Rf5+–) 46.h5 (46.b5 Rb1 47.a4 Kf7+–) 46...Rd2 (46...Rd7+–) 47.h6 (47.h6 Nh6 48.Bh6 Kf7 49.Bd2+–) 1–0. Thielemann,Joachim (2010) – Gestrich,Wolfgang, Wch Seniors Rowy Poland, 2000.

    6.c5 Ne7 7.Ne2 b6 8.cb6 ab6 9.g3 c5 10.bc5 bc5 11.Bg2 Nec6 12.0-0 Bd6 13.f4 0-0 14.f5 Bf7 15.Nbc3 d4 16.Ne4 Be7 17.Qc1 Qb6 18.Rb1 de3 19.Be5 ed2 20.Rb6?? dc1Q–+ 21.Rc1 Bd5?? 22.Nc5 Bg2-/+ 23.Kg2? Ne5 24.Ne6 Nbd7 25.Nf8 Nb6 26.Ne6 Ra3 27.N2d4 Kf7 28.Rc7 Nd5 29.Rd7 Ra5 30.h3 Ra6 31.g4?? g6 32.Rd5= gf5 33.gf5 Rd6 34.Rd6 Bd6 35.Nd8 Kg7 36.N4e6 Kh6 37.Kf2 Kh5 38.Ke3 Kh4 39.Ke4 Kh3 40.Kd5 Bb8 41.Nd4 Kg4 42.Ke6 Nf3 43.Nf3+= Kf3 44.Kf6 h5 45.Kg5+– Be5 46.f6?? Bf6= 47.Kf6 h4 48.Ne6 h3 49.Nd4?? Kf2 50.Kf5 h2 51.Ne6 h1Q 0–1. dtpwaldi (1610) – hanibal8 (1635), internet, 2011.

    6.d3 Qb6 7.c5 (better is 7.cd5!? cd5 8.d4= e4 9.Nc3 a5 10.Na4 Qd6 11.Nc5+=) 7...Bc5-/+ 8.Bc3 (8.bc5 Qb2 (8...Qa5 9.Nd2 Qc5 10.d4 ed4 11.Bd4+–) 9.Nd2 Nd7 10.Qc1 Qc1 11.Rc1-/+; 8.d4 ed4 9.Qc2 Bd6 10.Bd4 Qc7 11.Bd3-/+) 8...Bd6 9.Nf3 Ne7 10.d4 (10.Be2 0-0 11.Nbd2-/+) 10...e4 11.Nh4? (better is 11.Nfd2–+) 11...g5 12.Qh5 Kd7 13.f4 (13.Nf3 ef3 14.Qf3 Bf5–+) 13...gh4 14.Qh4 f5 15.Be2 Na6 16.0-0 Rag8 17.Nd2 Ng6 18.Qf2 Qd8 19.Nb3 Qf8 (19...Nc7 20.Nc5 Kc8 21.b5 cb5 22.a4–+) 20.b5 Nc7 21.bc6 bc6 22.Ba5 h5 (22...Ba3?! 23.Ra3 Qa3 24.Nc5 Kc8 25.Bc7 Kc7 26.Ne6 Kd6 27.Nc5–+) 23.Bc7 Bc7 24.Nc5 Kd6 25.Qe1 Qg7 26.Qb4? (26.Qf2–+) 26...Nf4! 27.Ne4 (27.ef4 Qg2; 27.Rf4 Qg2) 27...Kd7 28.Nc5 Ke8 (better is 28...Ke7 29.Bf3 Ng2–+) 29.Bf3 Nh3 30.Kh1 Bh2?? (better is 30...Ng5 31.Qb7 Nf3–+) 31.Ne6= Qg3 32.gh3?? (32.Qb7 Bg1 33.Qc6 Ke7 34.Qc7 Kf6 35.Bd5 Be3 36.gh3 (36.Qa7?? Nf2 37.Rf2 Qh4 38.Kg1 Qf2 39.Kh2 Qh4) 36...Qh3 37.Qh2 Qh2 38.Kh2+/–) 32...Qh3–+ 33.Rf2 (33.Qf8 Rf8 34.Bg2–+) 33...Bd6 34.Rh2 Qh2 0–1. Powers,G – Knudsen,John C, Iowa, 1973.

    6.d4 Nd7 7.cd5 cd5 8.Nf3 Bd6 9.Nc3 e4 10.Nd2 Rc8 11.Qb3 Ne7? 12.Nde4!+/- Nb6 (12...de4 13.Qe6 Double attack (13.Qe6 Pinning; 13.Qe6 Deflection; 13.Qe6 Decoy)) 13.Nd6 (13.Nc5 Bc5 14.bc5 Nc4+-) 13...Qd6+/- 14.Bd3 0-0 15.0-0 Nc4 16.Rfd1 Ng6 17.Ne2 (17.Rac1 f5+/-) 17...f5 18.a4 f4 19.Bg6 fe3 20.Bd3 (20.Bh7!? Kh7 21.fe3+/-) 20...ef2= 21.Kh1 Ne3 (21...Bg4 22.Rf1 Nd2-/+) 22.Bh7!+/- Kh7 23.Qe3 Rc2 24.Ba3 Rf6? (better 24...Bg4!? 25.b5 f1Q 26.Rf1 Rf1 27.Rf1 Re2+/-) 25.Ng3 (25.Rf1 Bg4 26.Ng3 Kh8+-) 25...Rh6? (25...Qf4 26.Qb3 Rd2 27.Nf1+-) 26.Qd3 (better 26.Rf1+-) 26...Kg8 27.b5 Qf4?? (better 27...Rh2 28.Kh2 Qf4=) 28.Rf1?? (better 28.Nf1 Bf5 29.Qg3 Qg3 30.Ng3+-) 28...Rh2!! 29.Kh2 (29.Kh2 Qh4 Mate attack) 29…Qh4 0-1. A_H_Kashefi (2260) - kroneckerweber (2300), Rated Blitz game, lichess.org, 2019.

    6.Nf3 dc4 7.Qc2 b5 8.Nc3 a6 (8...a5 9.ba5 Ra5 10.d4-/+) 9.Be2 (9.d4 a5 10.ba5 Nd7=+) 9...Nd7 10.0-0 (10.d4 a5 11.ba5 Ra5=+) 10...Nb6 (10...c5!?-/+) 11.d3 (11.d4 cd3 12.Bd3 Nc4=+) 11...cd3 12.Bd3 (worse 12.Qd3 Qd3 13.Bd3 c5-/+) 12...Rc8 (12...Nc4!? 13.Rfd1 Qb6=) 13.Rfd1 Qc7 14.Be4 (14.Bh7 Nh6+=) 14...Nh6 (14...Nc4 15.Bc1=+) 15.Rac1 (15.Bh7 c5=) 15...Nc4=+ 16.Nd2 f5 (16...Nb2 17.Qb2 Nf7=+) 17.Bd3 (better 17.Nc4!? fe4 18.Na5=) 17...Nb2-/+ 18.Qb2 e4 19.Be2 Be7 (19...Qe5 20.Nf1-/+) 20.Nb3 (20.Nce4 fe4 21.Qg7 Nf7=+) 20...0-0 21.Nd4 Bd7 (better 21...Bf7!?-/+) 22.Qb3= Kh8 23.Ne6 (23.Nd5!? Qd8 24.Nf4=) 23...Be6=+ 24.Qe6 Rf6 25.Qb3 Qb7 26.Rc2 (26.f3 Re8 27.fe4 Qb6=+) 26...Nf7 27.Rdc1 Ne5 28.Nd5 Rd6 29.Ne7 Qe7 30.Qc3 h6 31.h3 Rcd8 32.Qc5 Qf6 33.Qb6 Nd3 34.Bd3 ed3 35.Rd2 f4 36.Rcd1 (36.ef4 Qf4 37.Rcd1 Kh7-/+) 36...Qc3 (36...fe3 37.fe3 Qe6 38.Qc5-/+) 37.ef4? (better 37.Qa6!? fe3 38.fe3-/+) 37...Qa3–+ 38.Qc5 (38.Rb1 Qc3 39.Rbb2 Re8–+) 38...a5 39.Rb1 a4 (39...ab4 40.Rc1–+) 40.Rbd1 (40.Kh2–+) 40...Qb3 41.f5 Qc4 42.f6 (42.Rc1 Qc5 43.Rc5 Kh7–+) 42...Qc5 43.fg7 (43.bc5 Rf6 44.Rd3 Rd3 45.Rd3 Rf5–+) 43...Kg7 44.bc5 Rd5 45.Rc1 b4 46.Rc4 b3 47.Ra4 Rb8 (47...Rc5 48.Rg4 Kh7 49.Rb4–+) 48.Ra1 b2 (better 48...Rc5 49.Rb1 Rd5–+) 49.Rb1 Rc5 50.Rd3?? (50.Rd3 Rc1 51.Rd1 Rd1 52.Rd1–+; better 50.Rbb2 Rb2 51.Rb2–+) 1–0. BeepBeepImAJeep (2605) – Clovis99 (2405), lichess.org, 2017.

    6.Nf3 dc4 7.Qc2+= b5 8.d4 a5 9.ba5 ed4 10.Nd4 Bd5+=.

    6.Qb3 Bd6

    7.Nc3 dc4 8.Bc4 Bc4 9.Qc4 Nd7 10.Nf3 Nb6 11.Qb3 Qd7=.

    7.c5 Bc7 8.Be2 Ne7 (8...b6 9.d4 Nd7 10.Nf3 bc5 11.dc5 Ne7=; 8...Nd7 9.Nf3 Qe7 10.0-0 Nh6 11.d4 e4=; 8...Qe7 9.Nf3 Bg4 10.Nc3 Nd7 11.0-0 0-0-0=) 9.Nf3 Nd7 10.0-0 Qb8 11.d3 b6=.

    7.d4 Nd7 A) 8.Nc3 ed4 (8...Ne7 9.Nf3 e4 10.cd5 Bd5 11.Nd5 Nd5=) 9.cd5 dc3 10.de6 cb2 11.ed7+= Qd7=; B) 8.Nd2 ed4 (8...Ne7 9.e4 0-0 10.Ngf3 ed4 11.Nd4 Bf7+=) 9.Bd4 Ne7 10.Ngf3 Ne5 (10...0-0 11.c5 Bc7=) 11.c5= Bc7=.

    7.Be2 Nd7 (7...dc4 8.Bc4 Bc4 9.Qc4 b5 10.Qe6 Qe7 11.Qc8 Kf7=) 8.Nc3 (8.c5 Bc7 9.Nf3 Qe7 10.0-0 Nh6 11.d4 e4=) 8...dc4 (8...Ne7 9.Nf3 dc4 10.Bc4 Bc4 11.Qc4 Nb6=) 9.Bc4 Bc4 10.Qc4 a5 11.b5 Nb6=.

    7.Nf3 Nd7 8.Nc3 (8.c5 Bc7 9.Be2 Qe7 10.0-0 Nh6 11.d4 e4=) 8...Ne7 9.Be2 Bf7 10.0-0 0-0 11.d4 e4=.

    7.Nf3 Ne7 8.Nc3 Nd7 9.cd5 Nd5 10.Ne4 Be7 11.d4 ed4 (11...f5!? 12.Nc3 Bf6+=) 12.Nd4= Bf7 13.Nf5 0-0 14.Ned6 N7b6 (14...Bd6 15.Nd6 Rb8 16.Rd1+=) 15.Nf7 (15.Nb7 Qd7 16.e4 Qb7 17.ed5 Rae8=) 15...Rf7 (15...Kf7? 16.e4+– (16.Ne7?! Qe7 17.Bd3 Kg8+=)) 16.Be2 Qe8 (better is 16...a5!?+=) 17.Bh5+/– g6 (17...Rd8!?+/–) 18.Nh6+– Kf8 19.Bf3 (better is 19.Nf7 Qf7 20.Be2+–) 19...Rg7+= 20.0-0 Bd8 (20...Rd8!?+=) 21.a4 (21.e4 Nf4+/–) 21...Nc7 (21...Nc7 22.Rfd1 Be7+/–; 21...Be7 22.a5 Nc8 23.b5+–). Roggensack_Hanspach,Peter – Feilmayr,Erwin, corr SOK–92–79, 1992.

    7.Nf3 Ne7 8.Nc3 Nd7 9.Be2 Bf7 10.0-0 Nb6 11.cd5 Ned5=.

    7.Nf3 Ne7 8.c5 Bc7 9.Be2 Nd7 10.0-0 Qb8 11.d3 b6=.

    7.Nc3 Ne7

    8.cd5 cd5 9.e4 0-0 10.Nd5 Bd5 11.ed5 Nd7=.

    8.cd5 cd5 9.e4 Bc7 10.ed5 Bd5 11.Nd5 Qd5 12.Qd5 Nd5= 13.Bc4=.

    8.cd5 Bd5 9.Nd5 cd5 10.Ne2 (10.Rc1 Nbc6 11.Be2 Qb6 12.Bh5 Kd8 13.Bf3=) 10...Nbc6 11.Nc3 Bc7 12.Rc1 f5 13.Be2+=.

    8.Be2 dc4 9.Bc4 Bc4 10.Qc4 a5 11.b5 Qd7=.

    8.Be2 Qd7 9.cd5 A) 9...cd5 10.d4 (10.Nb5 Nbc6 11.Nd6 Qd6 12.d4 a6= 13.Rc1=) 10...ed4 11.ed4 0-0 12.Nf3 Nbc6 13.0-0=; B) 9...Nd5 10.Bc4 a5 11.b5 Nc7 (11...a4 12.Na4 cb5= 13.Bb5=) 12.Be6 Ne6 13.d3=.

    8.Be2 Qd7 9.Nf3 a5 A) 10.0-0 Na6 (10...b5 11.d3 0-0 12.Na2 Nf5 13.Qc2+=) 11.cd5 Nd5 12.Bc4 ab4+= 13.ab4+=; B) 10.b5 a4 11.Qa2 Ra5 12.bc6 Qc6 13.d4=.

    8.Be2 Qd7 9.Nf3 b5 10.d3 a5 (10...0-0 11.Qc2 a5 12.c5 Bc7+= 13.0-0+=) 11.0-0 0-0 12.ba5 Ra5 13.Rfc1+=.

    8.Be2 Qd7 9.Nf3 e4 10.Nd4 dc4 11.Bc4 Bc4 12.Qc4 b5 (12...Qg4= 13.Ne6=) 13.Qb3=.

    8.Be2 Nd7 9.Nf3 Bf7 10.0-0 Nb6 11.cd5 Ned5=.

    8.Nf3 0-0 9.cd5 cd5 10.e4 Bf7 11.ed5 a5 12.ba5 Nd7=.

    8.Nf3 0-0 9.Be2 Nd7 10.0-0 h6 (10...Qe8 11.d4 Qf7 12.c5 Bc7=) 11.Rfc1 (11.c5 Bc7 12.d4 Re8=) 11...f5 (11...Kh8 12.d4 Re8+=) 12.cd5 cd5 (12...Nd5=) 13.Na4 Ng6 14.Nc5 Nc5 (14...Bc5!? 15.bc5 Qe7+=) 15.bc5+/– Bc7 16.Rc2 (better is 16.Qb7!? f4 17.Rab1+/–) 16...Qd7 17.Rac1 Qf7 18.Qb4 (worse is 18.Qb7 e4 19.Qa6 ef3 20.Bf3 f4-/+) 18...f4 19.c6 (19.Qb7 e4 20.Kh1 ef3 21.Bf3 Nh4–+) 19...b6 20.d3 fe3 21.fe3 a5 22.Qb5 Rad8 23.Rf1 Qe7 24.a4 e4 25.de4 de4 26.Ba3?? (26.Nd4 Qh4 27.g3 Bg3 28.Bc4 Rf1 29.Bf1+–) 26...Qa3–+ 0–1. Heinola – Pursiainen, Tampere we Task, 1984. (=1.e3 e5 2.a3 d5 3.b4 Be6 4.Bb2 f6 5.c4 c6 6.Qb3 Bd6)

    8.Nf3 0-0 9.Be2 Qe8 10.cd5 cd5 11.Nb5 Qd7=.

    8.Nf3 0-0 9.Be2 Qe8 10.cd5 Nd5 11.Bc4 Qf7 12.e4 Nf4=.

    8.Nf3 Nd7 9.Be2 0-0 10.0-0 Qe8 11.d4 e4 12.cd5 Bd5=.

    8.Nf3 Nd7 9.Be2 Qb8 10.d4 e4 11.cd5 Bd5 12.Nd5 Nd5=.

    8.Nf3 Nd7 9.Be2 dc4 10.Bc4 Bc4 11.Qc4 Nb6=.

    8.Nf3 Nd7 9.Be2 Bf7 10.0-0 Nb6 11.cd5 Ned5 12.Qc2 Nc3=.

    6.c5 Nd7

    7.d4 e4 8.Nc3 Ne7 A) 9.Rc1 A1) 9...Rb8 10.Nge2 (10.Qb3 Bf5 11.b5 b6 12.bc6 Nc6 13.cb6=) 10...Ng6 11.b5 Qa5 12.h4 Bg4 13.Qd2+=; A2) 9...Ng6 10.b5 (10.Qb3 f5 11.b5 Be7 12.Nh3 0-0 13.Rb1=) 10...Be7 11.h4 0-0 12.h5 Nh8 13.Nh3=; A3) 9...a6 10.Nge2 Ng6 11.Ng3 f5 12.Qb3 Qf6 13.Qa4=; B) 9.Qb3 B1) 9...Bf5 10.Nge2 (10.b5 Qc7 11.Nge2 b6 12.bc6 Qc6 13.Ng3=) 10...b6 11.cb6 Qb6 12.Ng3 Bg6 13.Be2+=; B2) 9...Bg4 10.Be2 (10.Nge2 b6 11.cb6 Nb6 12.h3 Bc8 13.Ng3=; 10.Rb1 Rb8 11.b5 Qa5 12.Bc1 Qc7 13.Qa4+=) 10...h5 11.b5 Be2 12.Nge2 g6 13.0-0+=; B3) 9...Bf7 10.Rb1 (10.Be2 b6 11.Nh3 bc5 12.bc5 Rb8 13.Qc2=; 10.Nge2 b6 11.cb6 ab6 12.Rc1 Rc8 13.Nf4=; 10.Nh3 Ng6 11.b5 Be7 12.Qd1 Be6 13.Qh5=) 10...b6 11.Be2 Qb8 12.Qd1 a5 13.Nh3=; B4) 9...Kf7 10.f3 Nf5 11.Kf2 Nh6 12.Re1 Be7 13.Qc2=; C) 9.Rb1 b6 10.Ba6 bc5 11.bc5 Qa5 12.Qa4 Qa4 13.Na4=; D) 9.f3 f5 10.b5 b6 11.Nge2 bc5 12.Nf4 Bf7 13.dc5=; E) 9.b5 b6 10.Nge2 (10.Nh3 bc5 11.Nf4 Bf7 12.bc6 Nc6 13.dc5=) 10...bc5 11.Nf4 Bf7 12.bc6 Nc6 13.dc5=; F) 9.Ra2 Ng6 10.Qb3 (10.b5 Qa5 11.Qd2 Qc7 12.bc6 bc6 13.h4=) 10...f5 11.b5 Qc8 12.Nh3 Be7 13.Be2=; G) 9.Nge2 Ng6 10.Rb1 (10.b5 cb5 11.Qb3 b6 12.cb6 a6 13.b7=; 10.Qa4 a6 11.h4 h5 12.Rb1 f5 13.g3=) 10...Be7 11.h4 Rc8 12.h5 Ngf8 13.Nf4+=.

    7.d4 e4 8.Nc3 f5 9.f4 ef3 (9...Ngf6 10.b5 Be7 11.Rb1 cb5 12.Bb5 a6 13.Ba4=; 9...Be7 10.Rb1 (10.b5 Ngf6 11.Rb1 Ng4 12.Qd2 0-0 13.bc6=; 10.Qh5 g6 11.Qe2 Ngf6 12.Nh3 Ng4 13.Rb1=) 10...Ngf6 11.b5 0-0 12.bc6 bc6 13.Nh3=; 9...Nh6 10.b5 Ng4 11.Bc1 Be7 12.bc6 bc6 13.Nge2+=; 9...Ne7 10.Nh3 Ng6 11.b5 Be7 12.Qa4 cb5 13.Qb5=) 10.Nf3 g6 (10...Ngf6 11.Be2 Ne4 12.0-0 Be7 13.b5=) 11.Qb3 (11.Bd3 Bh6 12.Qe2 Ngf6 13.0-0=) 11...Ngf6 12.0-0-0 (12.Be2!?= Bh6 13.Nd1=) 12...Bh6 (12...Ne4 13.Ne4+=) 13.Kb1 (13.Re1+=) 13...0-0 14.Bc1 Ne4 15.Ne4 fe4 16.Nd2 Qg5 17.Re1 Nf6 18.Ka1 b5 19.cb6 ab6 20.b5 c5 21.dc5 bc5 22.Bb2 Bg7 23.b6 c4 24.Qb5 Bd7 25.Qb4 Ng4 26.Ka2 (better is 26.b7 Rab8 27.Nc4 dc4 28.Qc4 Kh8 29.Bg7 Kg7 30.Qe4–+) 26...Bb2 (26...Ne3?! 27.Bg7 Rf1 28.Nf1+=) 27.Qb2 Be6 28.Qc3 Rf2 29.h3 (29.Ka1–+) 29...d4! 30.b7 (30.Qd4 c3; 30.ed4 Qd2) 30...Rb8 (30...dc3 31.ba8Q Kg7 A) 32.hg4 cd2 33.Rd1 c3 34.Ka1 c2 (34...Qe3 35.Be2 Bg8 36.Qb7 Bf7 37.Qb8 Qe2 38.Rh7 Kf6 39.Qd8 Ke6 40.Qb6 Kd5 41.Qb7 Kd4 42.Qb6 Kd3 43.Qb5 Ke3 44.Qc5 Kd3 45.Qb5 Kd4 46.Qb6 Ke5 47.Qc7 Ke6 48.Qb6 Kd7 49.Qb7 Kd6 50.Qb4 Kc6 51.Qa4 Qb5 52.Qe4 Kb6 53.Qd4 Qc5 54.Qd8 Kc6 55.Qa8 Kd6 56.Qb8 Kd5 57.Rhh1–+) 35.Qa7 Bf7 36.Qd4 Qf6 37.Qf6 Kf6–+; B) 32.Qa7 Kf8 33.Qb8 Kg7 34.Qb7 (34.hg4 cd2 35.Rd1 c3 36.Kb1 Qd5 37.Qc7 Kg8+=) 34...Bf7 35.hg4+–) 31.ed4 Qd2 (31...Rd2?! 32.Ka1 Nf6 33.Bc4 Bc4 34.Qc4 Qd5 35.Qd5 Nd5 36.Rd1 Rg2 37.Rb1–+) 32.Qd2 Rd2 33.Ka1 Nf2 (33...Nf2 34.Rc1 Nh1–+) 0–1. Katalymov,Boris N – Kapengut,Albert Z, Leningrad, 1969.

    7.d4 e4 8.Nc3 f5 9.Nh3 A) 9...Bf7 10.Be2 Be7 11.0-0 Ngf6 12.Ng5 0-0 13.b5+=; B) 9...Be7 10.Be2 (10.Nf4 Bf7 11.Be2 Ngf6 12.0-0 0-0 13.Rb1=) 10...Bf7 11.0-0 Ngf6 12.b5 cb5 13.Bb5+=; C) 9...Ne7+= 10.Nf4 (10.b5 Ng6 11.Qa4 Qc7 12.Na2 Be7 13.Nb4=) 10...Bf7 11.Be2 g5 12.Nh5 Qc7 13.b5+=; D) 9...Nh6 10.b5 (10.Nf4 Bf7 11.Be2 g5 12.Nh5 Qc7 13.h4+=) 10...Ng4 11.Be2 Qh4 12.0-0 Be7 13.Qa4+/–; E) 9...Ngf6 10.Be2 Be7 11.0-0 0-0 12.b5 Qc7 13.Nf4+=.

    7.d4 e4 8.b5 Ne7 A) 9.Ne2 Ng6 (9...b6 10.Nf4 Bf7 11.cb6 g5 12.b7 Rb8=) 10.Nbc3 cb5 11.Qb3 b6 12.cb6 a6=; B) 9.bc6 bc6 (9...Nc6 10.Ne2 b6 11.Nf4 Bf7 12.Qa4 Rc8=) 10.Nc3 Rb8 11.Rb1 Ng6 12.Qa4 Qc7=.

    7.d4 e4 8.Nc3 Ne7 9.Qb3 (9.Nge2 Ng6 10.b5 cb5 11.Qb3 b6 12.cb6 Nb6=) 9...Kf7 (9...Bf5 10.b5 a6 11.bc6 bc6 12.Rb1 a5+=; 9...Bf7 10.Be2 b6 11.Nh3 bc5 12.bc5 Rb8=) 10.f3 Nf5 11.Kf2 Nh6 12.Re1 Be7=.

    7.d4 e4 8.Ne2 f5 9.Nf4 (9.b5 Ngf6 10.Nf4 Bf7 11.Nc3 Be7 12.Rb1 0-0+=; 9.Nbc3 Be7 (9...Ngf6 10.Nf4 Bf7 11.Be2 Be7 12.0-0 0-0=; 9...Bf7 10.Ng3 Be6 11.Be2 Ngf6 12.0-0 Be7+=; 9...Nh6 10.Nf4 Bf7 11.Be2 g5 12.Nh3 Be6+=; 9...g5 10.h4 g4 11.b5 Bh6 12.Rb1 Ne7=; 9...Rb8 10.Nf4 Bf7 11.Be2 Qh4 12.b5 g5+=; 9...b6 10.Nf4 Bf7 11.b5 cb5 12.Bb5 bc5+=) 10.Nf4 Bf7 11.Be2 Ngf6 12.0-0 0-0=; 9.Nd2 g5 (9...Bf7 10.Ng3 Be6 11.Be2 Ngf6 12.0-0 Be7+=; 9...Nh6 10.Nf4 Bf7 11.Be2 Qf6 12.0-0 g5+=) 10.h4 g4 11.b5 Bh6 12.bc6 bc6+=) 9...Bf7 10.h4 (10.b5 Ngf6 11.Nd2 g5 12.Nh3 h6+=) 10...g6 (10...Be7 11.h5 Bg5 12.Be2 Ngf6=) 11.Be2 (11.b5 Ngf6 12.Nc3 Bh6+=) 11...Qf6 (11...Be7 12.h5 g5=) 12.Nc3 Ne7 (12...Bg7+=) 13.b5 Bg7 14.Qc2 0-0 15.a4 h6 16.a5 a6 17.ba6 ba6 18.Na4 Ra7 19.0-0-0 g5 20.hg5 hg5 21.Nh5 Bh5 22.Rh5 Qg6 23.g3 f4 24.gf4 gf4 25.Rhh1 Qg2 26.f3 (better is 26.ef4!? Qf2 27.Rdf1 Qe3 28.Qd2=) 26...Nf5-/+ (26...fe3? 27.Rdg1 Qf2 28.Nc3+–) 27.Rdg1 Qf2 28.fe4 Ng3 29.Bg4 (29.ef4!? Nh1 30.Rh1 Qf4 31.Kd1 Qe4 32.Qe4 de4 33.Bc4 Rf7 34.Rg1=) 29...Qe3 30.Kb1 Nh1 31.Be6 Rf7 32.Rh1 Nf8 (better is 32...de4 33.d5 Ne5–+) 33.Bf7= Rf7 34.ed5 f3 (34...cd5 35.c6 Rc7=) 35.Rf1 (better is 35.dc6 f2 36.Rf1 Qe1 37.Qc1 Qe4 38.Ka1 Qc6 39.Qc4+=) 35...cd5-/+ 36.Nb6 f2 37.Ka2 (37.Nd5? Qe1 38.Qc1 Qe4 39.Qc2 Qd5 40.Rf2 Ne6–+) 37...Bd4 38.Nd5 Qe5 39.Nb4? (better is 39.Ne7 Re7 40.Bd4 Qd4 41.Rf2–+) 39...Qe6 40.Ka3 (40.Qb3 Qe2 41.Rb1–+) 40...Qh3 (40...Qh3 41.Qb3 Qf1 42.Bd4 Qc1 43.Bb2 Qh1–+) 0–1. van der Spek,HP – Kuehnrich,HJ, corr ICCF EU/M/GT/057.

    7.d4 e4 8.Ne2 Nh6 A) 9.Qa4 Qc7 (9...Be7 10.Nf4 Bf7 11.b5 g5 12.Ne2 cb5+=; 9...Bg4 10.b5 Qc7 11.Nbc3 Be7 12.h3 Bf5+=) 10.Nf4 Bf7 11.Be2 g5 12.Nh5 f5=; B) 9.h3 Bf7 10.Nf4 Be7 11.Be2 f5 12.Nc3 g5=; C) 9.Nbc3 Be7 10.Nf4 Bf7 11.Be2 0-0 12.0-0 b6+=; D) 9.Qb3 Be7 (9...Bg4 10.Nbc3 Nf7 11.h3 Bf5 12.Nd5 cd5+/–; 9...Bf5 10.Nbc3 Be7 11.Ng3 Bg6 12.Be2 f5+=) 10.Nf4 Bf5 11.Be2 g5 12.Nh5 Rg8+=; E) 9.Nd2 Be7 10.Nf4 Bf7 11.b5 0-0 12.Be2 cb5+=; F) 9.b5 Be7 10.Nf4 Bg4 11.Be2 Be2 12.Qe2 Qa5+=.

    6.d3 dc4

    7.Qc2 a5 8.ba5 Qa5 9.Nd2 cd3 10.Bd3 g6 11.Ngf3 Ne7-/+.

    7.Nc3 a5 8.b5 cb5 9.Nb5 cd3 10.Bd3 Na6 11.Nc3-/+ Nc5 12.Bb5-/+.

    7.Nc3 cd3 8.Bd3 a5 (8...Nd7 9.Qc2 g6 10.Rd1 Rc8 11.Nf3 a5 12.b5+=) 9.b5 Nd7 (9...cb5 10.Qh5 Bf7 11.Bb5 Nc6 12.Qe2+=) 10.Qh5 (10.bc6 bc6 11.Qh5 Bf7 12.Qe2+=) 10...Bf7 11.Qe2+=Nc5 12.Bc2+=.

    7.dc4 Qd1 8.Kd1 a6 9.Nd2 (9.c5 Nd7 10.Nd2 b6 11.cb6+=) 9...Nd7 (9...c5 10.Bc3 Nc6 11.b5+=) 10.Ngf3 (10.c5 b6 11.cb6+=) 10...c5 11.Bc3 (11.b5+=) 11...Rd8 12.Kc2 Ne7 13.Ne4 Nc8 14.Be2 Be7 15.Rhd1 0-0. Zappe,Helmut – Kleinke,Uwe, corr DDR–ch I726, 1979.

    7.dc4 Qd1 8.Kd1 c5 9.b5 Nd7 10.Nd2 0-0-0 11.Ke1+=.

    7.dc4 Qd1 8.Kd1+= c5 9.b5 Nd7 10.Ke1 Nb6 11.Nd2+= Na4+=.

    7.dc4 Qd1 8.Kd1+= c5 9.Nc3 cb4 10.ab4 Bb4 11.Nd5 Bd5+=.

    7.Nf3 A) 7...c5 8.bc5 (8.b5 cd3 9.Bd3 c4 10.Be4 Qb6 11.Nc3 Nd7-/+) 8...Bc5 9.Qa4 Nd7 10.dc4 Qb6 11.Bc3 Ne7+=; B) 7...a5 8.ba5 cd3 (8...Qa5 9.Nc3 cd3 10.Bd3 Nd7 11.Qc2 g6-/+) 9.Bd3 Na6 10.Nc3 Nc5 11.Bc2 Qd1-/+.

    6.cd5 cd5

    7.Bb5 Nc6 8.Nf3 Bd6 9.0-0 a6 10.Bc6 bc6 11.d3 a5 12.Qc2 Ne7 13.ba5 Qa5 14.Nbd2 (14.a4 0-0+=) 14...0-0 (14...Qa4 15.Rfc1-/+) 15.Rfc1 Rfb8 16.h3 Qa4 17.g4 (17.Rab1 Qc2 18.Rc2 Kf7-/+) 17...h5! 18.gh5 Bh3 19.Qa4 Ra4 20.Rc2 Bg4 21.h6 gh6 22.Kg2 Kf7 23.Kg3?? (23.Kf1–+) 23...e4 24.Kg4 ed3 (24...ed3 25.Kh3 dc2–+; 24...ef3?! 25.Kf3 h5 26.Ke2+=) 0–1. GuestLJNY – GuestFDQZ, freechess.org, 2017.

    7.Bb5 Bd7 8.Bd7 Nd7 (8...Qd7 9.d4 e4 10.Nc3 f5 11.Nge2 Nf6 12.Nf4=) 9.d4 (9.Nc3 Nb6 10.d3 a5 11.b5 Rc8 12.Rc1=; 9.Nf3 a5 10.Qb3 ab4 11.ab4 Ra1 12.Ba1=) 9...Bd6 10.de5 Ne5 11.Nf3 Nc4 12.Bd4=.

    7.Bb5 Kf7 8.d4 (8.Nf3 a5 9.ba5 Qa5 10.Nc3 Na6 11.d4 Nc7= 12.Be2=) A) 8...a6 9.Ba4 e4 (9...b5 10.Bb3 Nc6 11.de5 fe5 12.Nf3+=) 10.Nc3 Nc6 11.Nh3 Bd6+= 12.Qh5+=; B) 8...e4 9.Nd2 (9.Nc3 Bd6 10.Nh3 Ne7 11.Nf4 Bf4 12.ef4=; 9.Qh5 g6 10.Qd1 a5 11.ba5 Qa5 12.Nc3=) 9...a5 10.Bc3 Nc6 11.ba5 Na5= 12.Ne2=.

    7.Nc3 a5 8.ba5 d4 (8...Ra5!? 9.Qb3 Qd7= 10.Qb6 Nc6 11.Nb5 Kf7=; 8...Nc6 9.Qb3 Na5 10.Qb5 Qd7 11.Qd7 Kd7+=; 8...Ne7 9.Bb5 Nbc6 10.d4 ed4 11.Qd4 Bd7=) 9.ed4 ed4 (9...Qd4 10.Nf3 Qd7 11.Bb5 Nc6+/–) 10.Nce2 (10.Nb5 Nc6+/– 11.Ne2 Bg4+/–) 10...d3 (10...Nc6!?= 11.a6 Ra6=) 11.Nd4 (11.Nf4 Bf5+/–) 11...Bd5 12.Bd3 Bc5 (12...Qe7!? 13.Kf1 Ra5+/–) 13.Qh5+– Kf8 14.Nge2 (14.Bh7? Bd4 15.Bd4 Bg2-/+) 14...Ra5 (14...Ne7 15.Nf4 Bd4 16.Bd4 Ra5 17.Qh4+– (17.Bh7 Bf7 18.Qg4 Rg5–+)) 15.Bc3 Ra3 16.Ne6!! Be6 17.Qc5 Kf7 18.Ra3 (better is 18.Qh5!? g6 19.Bg6 hg6 20.Qh8 Ra1 21.Ba1 Ke8+–) 18...Qd3 19.Bb4 (better is 19.Qc7!? Nd7 20.Qb7+–) 19...Qb1+/– 20.Nc1 Nd7 21.Qc3 ½–½. Stief,Siegfried – Zinn,Lothar, DDR–ch U18 Eisenach, 1956.

    7.Nc3 a5 8.b5 Bd6 9.d4 Ne7 10.de5 fe5 11.Nf3 Nd7=.

    7.Nc3 a5 8.Bb5 Nc6 9.ba5 Qa5 10.Nf3 Bd6 11.0-0 Nge7 12.Qb3 Bf7 (12...Kf7 13.e4=) 13.d4 0-0 14.de5 Ne5 15.Nd4 Nc4 16.Bc1 (16.Nb1 Rfc8=) 16...Rfc8 (16...Na3? 17.Ba3 Ba3 18.Nb1+–) 17.Nce2 Be5 (17...Na3? 18.Ba3 Ba3 19.Ra2+–) 18.h3 (18.f4 Bd6=) 18...Qc7 19.Ra2 Na5 (19...Bg6 20.Nf4+=) 20.Qb1 (20.Qd1 Nec6=) 20...Bg6+= 21.Bd3 Bd3 (21...Nc4 22.Rd1=) 22.Qd3= Qc4 23.Qb1 Nac6 (23...Nec6 24.Bb2=) 24.Bb2 Qa6 25.Rc1 Nb4 26.Qa1? (better is 26.Rc8 Nc8 27.Ra1=) 26...Na2–+ 27.Qa2 Rc1 28.Bc1 (28.Nc1 Bd4 29.ed4 Qa5–+) 28...Qd3 29.Qc2 Qc2 30.Nc2 Kf7 31.Kf1 g5 (31...Rc8 32.Ncd4–+) 32.g4 f5 (32...Nc6 33.f4 Bd6 34.Nc3–+) 33.Nb4 (33.Ncd4 Kg6–+) 33...fg4 34.hg4 Rc8 35.f4 Bc3 36.Nd3 Bf6 37.Kf2 h6 38.Kf3 Rc2 39.Nb4 Rc4 40.Bd2 Kg7 (40...b5 41.Nd3–+) 41.Bc1 (41.a4 b6–+) 41...Rc8 (41...b5 42.Nd3–+) 42.Bd2 Bb2 (42...Ra8 43.Nc2–+) 43.a4 Kg6 44.a5 Bg7 45.Be1 (45.f5 Kf7-/+) 45...Kf7–+ 46.Nd3 Nc6 47.Ng3 (47.Nc3 Na5 48.Nd5 Rd8-/+) 47...Ra8 48.Nc5 (48.e4 gf4 49.ed5 fg3 (49...Ra5 50.dc6 Ra3 51.c7+–) 50.dc6 bc6 51.Kg3 Ke6–+) 48...gf4 49.ef4 Na5 50.Ba5 Ra5 51.Nb7 Ra3 52.Kg2 Kg6 (52...d4 53.Nd6 Ke6 54.Ngf5–+) 53.Nd6 Bd4 (53...Bd4 54.Ngf5 Bf6–+) 0–1. Cottarelli,Franco – Gerold,Guenter, corr ICCF TT, 2005.

    7.Nc3 Nc6 8.d4 Bd6 9.Nf3 e4 10.Nd2 Nge7 11.Be2 0-0=.

    7.Nc3 Bd6 8.Qh5 g6 9.Qf3 e4 10.Qd1 Nc6 11.d3 Be5=.

    7.Nc3 Be6 8.Nf3 g6 9.d4 Nd7 10.de5 fe5 11.Ne4 Bg4 12.Qb3 Qe7 13.Rd1 Bf3 14.gf3 Nh6 15.Nd6 Kd8 16.Bh3 Kc7 17.Nb5!! Kb6 18.Rd7 Qf6 19.Nc7 Bb4 1–0. Gavrijski,Dimitar (2010) – Kubacek,Josef, corr ICCF WSTT/3/06/2, 2006.

    7.d3 Bd6 8.Be2 Ne7 9.Nd2 0-0 10.Ngf3 a5 11.b5 Qb6 12.a4 Nd7 13.Rc1 Rac8 14.0-0 Rc1 15.Qc1 Rc8 16.Qa1 Ng6 17.Kh1 Rc2 18.Bd1 Rc7 19.Bb3 Nc5 20.Bc2 Ne4 21.de4 Rc2 22.ed5 Bd5 23.Qb1 Qc7 24.Rc1 Rc1 25.Bc1 e4! 26.Nd4 (26.Ne4 Qc4 Double attack (26...Qc4 Decoy)) 26...Qc3 27.g3 (27.Nf5 Be5-/+) 27...Be5 28.N2b3?? (better is 28.Nf5-/+) 28...Bd4–+ 29.Nd4 (29.Nd2–+) 29...Qe1 30.Kg2 Bc4 31.Qe4 Bf1 32.Kf3 Qd1 (32...Qd1 33.Ne2 Qe2; 32...Qc1 33.Qd5 Kf8 34.Qd8 Kf7 35.Qd7 Ne7 36.Nf5 Be2 37.Ke2 Qc2 38.Ke1 Qb1 39.Ke2 Qf5 40.Qf5 Nf5 41.Kd3–+) 0–1. shr0pshire – pierre, ChessWorld.net, 2005.

    7.d4 Nc6 8.b5 Qb6 9.Qd2=.

    7.d4 Nd7=.

    7.Nf3 Nc6 8.Be2 Bd6 9.0-0 Nge7 (9...Rc8 10.b5 Nce7 11.Nc3=) 10.d4 (10.b5 Na5=) 10...e4 11.Nfd2 0-0 (11...Qc7 12.h3=) 12.Qb3 (12.b5 Na5=) 12...f5 13.Nc3 a6 (13...Qc7 14.f4=) 14.Na4 (14.Rac1 Qc7 15.f4 g5=) 14...Qc7 15.f4 g5 (15...b6 16.Rac1=) 16.Nc5 Bf7 17.g3 Ng6 (17...gf4 18.gf4 Kh8 19.Kh1=) 18.b5 (18.Rac1 Rfc8=) 18...ab5= 19.Qb5 (19.fg5 b6 20.Nd3 ed3 21.Qd3 Na5 22.Rf5 Nc4–+) 19...gf4 20.gf4 (worse is 20.Qb7 fe3 21.Qc7 Bc7-/+) 20...Nf4 (better is 20...Rfb8!?=) 21.ef4+/– (worse is 21.Rf4 Bf4 22.ef4 Qf4+=) 21...Bf4 22.Ndb3 Bh2 (22...Be3 23.Kg2 f4 24.Qb7 (24.Nb7? Na7 25.Qb4 Qc2–+) 24...Qb7 25.Nb7=) 23.Kh1 Qe7? (better is 23...Ne7 24.Rac1 Qd6=) 24.Rf2?? (24.Kh2 Qh4 25.Kg2+=) 24...Bg3+= 25.Rg2 (25.Rf5?? Qh4 26.Kg1 Qh2 27.Kf1 Qh1) 25...Kh8 (25...f4!? 26.Rf1 Qh4 27.Kg1 Rab8=) 26.Kg1 (26.Rg3 Qh4 27.Kg2 f4 28.Ne4 fg3 29.Ng3 Rg8–+) 26...Qh4 (26...Qh4 27.Qb7 Bf4=; 26...f4 27.Nb7 Qg5 28.Nd2-/+ (28.Qc6 f3 29.Bf3 ef3–+)) 0–1. Kamminga,Gosse – Gilbert,Christophe, corr NED–FRA, 1997.

    7.Nf3 Bd6 8.Bb5 Nc6 9.d4=.

    7.Nf3 Bd6 8.Nc3 Ne7 9.Nb5 Nbc6 10.Nd6 Qd6 11.Be2 0-0 12.0-0 Rac8 13.b5 Nb8 14.a4 b6 (14...Rc7 15.d4 e4 16.Ba3+=) 15.Ba3 Nd7?? (better 15...Qd7+=) 16.Bd6+- (16.Bd6 Rfe8 17.d4+-) 1-0. FeegLood (2530) - kingston_1972 (2240), lichess.org, 2015.

    7.Nf3 Bd6 8.d3 Ne7 9.Be2 0-0 10.0-0 Nbc6 11.Nbd2 Rc8 12.Rc1 Qd7 13.Nb3 Bf7 14.Nc5 Bc5 15.Rc5 a6 16.Qd2 Na7 (16...b6 17.Rcc1=) 17.Rfc1+= Rc5 18.bc5 Nac6 19.d4 e4 20.Ne1 h6 21.Rb1 f5 22.Bc3 Ng6 23.g3 (23.Rb6 f4+/-) 23...Be6+= 24.Ng2 Rf7 25.Ba5 Kh7 26.Bc3 Nd8 (26...Kg8!?=) 27.Rb6 Nc6 28.Qc2 Nge7 29.Qa4 Nc8 30.Rb2 g5 31.h4 Rg7 32.hg5 hg5 33.Kf1 f4 (33...Kg8!?+=) 34.ef4+/- (worse 34.gf4 Bh3 35.f5 Qf5+=) 34...gf4 (34...Bh3!? 35.fg5 Rg5+/-) 35.Nf4+- Bh3 36.Ke1 Bg4 (36...Be6 37.Bd2+-) 37.Qd1 (better 37.Bg4 Rg4 38.Qb3 N8e7+-) 37...e3? (better 37...Be2 38.Qe2 Kg8+-) 38.fe3 (38.Bg4 ef2 39.Kf2 Rg4 40.Qb1 Kh8 41.Rb7 Rf4 42.gf4 Qh3+-) 38...Be2 39.Re2 Kg8 40.Rh2 Qg4 (40...Qf5 41.Qb3 N6e7 42.Qb7 Rg3 43.Re2+-) 41.Qg4 Rg4 42.Nd5 Rg3 43.Kf2 Rg5 44.Rg2 (44.e4 N8e7 45.Nf4 Rg4+-) 44...Rg2 45.Kg2 Kf7 46.Kf3 N8e7 47.e4 (47.Nf4 Nb8+-) 47...Nd5 48.ed5 Ne7 49.Ke4 Ke8 50.d6 Nc6 51.d5 Nd8 52.Ba5 (52.Kf5 Kd7+-) 52...Nf7 53.Kf5 Kd7 54.Kf6 (54.Bd2!? a5+-) 54...Nh6?! (54...Nd6 55.cd6 Kd6+-) 55.Ke5 Ng4 56.Kd4 Nf6 57.Be1 Ne8 (57...Ng4 58.Bg3+-) 58.Bh4 1-0. black_bishop_88 (2650) - Gallo25 (2040), Hourly SuperBlitz Arena, lichess.org, 2020. (=1.a3 e5 2.b4 d5 3.Bb2 f6 4.e3 Be6 5.c4 c6)

    7.d4 e4

    8.Qb3 Nc6 9.Nc3 (9.Nd2 Qd7 10.Ne2 Bd6 11.Nc3 Nge7 12.Be2=) 9...Qd7 10.b5 Nd8 11.b6 Nc6 12.Nge2=.

    8.Bb5 Nc6 9.Ne2 Bd6 10.Nbc3 a5 11.ba5 Nge7 12.Nc1=.

    8.Bb5 Nc6 9.Ne2 g5 10.Ng3 g4 11.h3 (11.Nc3 a5 12.Nge4 ab4 13.ab4 Ra1 (worse 13...de4 14.Ra8 Qa8 15.d5+/-) 14.Ba1 de4=) 11...Bd6 12.hg4 (12.Nh5 Qd7=) 12...Bg3=+ 13.fg3 Qd6 14.Kf2 (14.Rh3 a6 15.Be2 Nge7=) 14...Kd7 (14...Rc8 15.Nd2=+) 15.Nc3= Nge7 16.Ne2 (better 16.Rh6!?=) 16...Bg4-/+ 17.Qd2 h5 18.Nf4 Rag8 19.Rac1 a6 20.Ba4 Kd8 21.b5 ab5 22.Bb5 Rg5 23.a4 Rhg8 24.Bc6 (24.Qc3 R8g7=) 24...Nc6-/+ (24...bc6?! 25.Qc3=) 25.Rc5 White prepares a5 25...b6 26.Rb5 Na7 27.Rb3 Nc8 28.Ba3 Qd7 (28...Qc6 29.Qa2-/+) 29.a5 (better 29.Rb5=+) 29...ba5 (29...Qa4 30.Qb2 ba5+-) 30.Qa5+= Ke8 31.Qa6 (31.Rb5 Qd8+=) 31...Qa7 (31...R8g7 32.Rc1 (32.Qf6?! Qf7 33.Qc6 Qd7+=) 32...Qd8 33.Rb8+-) 32.Qc6 (32.Qa7 Na7 33.Rc1 Kd8+=) 32...Bd7= 33.Qf6 Rf5 34.Qh4 (34.Qh6 Qa5 35.Rhb1 Qd8+=) 34...Rg4= 35.Qh2 h4 36.gh4 Rff4 37.ef4 (37.ef4 Qd4 Combination; 37.Qf4 Rf4 Combination) 37...Qd4 38.Ke1? (better 38.Re3 Qd2 39.Re2 Rf4 40.Kg3 Qe2 41.Kf4 Qd2 42.Ke5 Qc3 43.Kd5 Bc6 44.Ke6 Qa3 45.Qe5 Qe7 46.Kf5=+) 38...Qa1-+ 39.Kd2 Qa2 40.Rb2 Qa3 41.Rc2?? (41.Rhb1-+) 41...e3 (better 41...Rg3 42.Qg3 Qg3 43.Kc1-+) 42.Ke2 Bb5 (42...d4 43.f5 Qa6 44.Kd1 Qa1 45.Rc1 Qa5 46.Rc8 Bc8-+) 43.Kf3=+ Nd6 44.Kg4 (44.Re1 Bd3 45.Re3 Be4 46.Kf2-+) 44...Bd7-/+ 45.Kf3 e2 46.Kf2 (46.Ke2 Bg4 47.Kf1 Qd3 48.Kg1 Qd4 49.Rf2 Ne4 50.Qg3 Ng3 51.Rh3 Ne2 52.Kh2 Qf2 53.Re3 Qe3 54.h5 Qg1) 46...Ne4 47.Ke1 Bg4 (47...Qd3 48.Rc8 Bc8 49.g4 Qd2) 48.Rc8 Kd7 49.Rc7 Kc7 (49...Kd8 50.Rc8 Kc8 51.h5 Qc3) 50.f5 Kc6 (50...Kc6 51.Qd6 Kd6 52.h5 Qc3; 50...Kd7 51.Qc7 Kc7 52.h5 Qc3) 0-1. kianas (2085) - bobagem (2370), ChessWorld.net, 2011.

    8.Bb5 Nc6 9.Nh3 Bd6 10.Nf4 Bf4 11.ef4 Nge7 12.Qh5+=.

    8.Bb5 Nd7 9.Nc3 a6 10.Ba4 f5 11.Nh3 Bd6 12.Qh5=.

    8.Nc3 a5 9.ba5 (9.Qa4 Nd7 10.ba5 Qa5 11.Qa5 Ra5 12.Nb5=) 9...Ra5 (9...Qa5 10.Qb3 Ra7 11.f3 f5 12.Bb5+=) 10.Qb3 Qd7 11.Qb6 Nc6= 12.Nb5+=.

    8.Nc3 Nc6 9.Na4 Nge7 (9...Bd6 10.Nc5 Qe7 11.Rc1=) 10.Nc5+= Bc8 11.Ne2 b6 12.Nb3 Ba6 13.Nf4 Bf1 14.Rf1 Qd7 (14...Kf7 15.Rc1 Qd7 16.f3+=) 15.f3= ef3 (15...Nf5 16.fe4 Ne3 (16...de4 17.Qh5 g6 18.Ng6 hg6 19.Qh8+/–) 17.Qh5 Qf7+=) 16.Qf3+/– 0-0-0 (16...Kf7!?+/–) 17.b5 Nb8 18.a4 Kb7 19.Kf2 Ng6 20.Kg1 Nf4 21.ef4 h5 22.Qd3 Re8 23.a5 Qe6 24.Bc1 (24.Rf2 Qe4 25.Qc3 Qe3+/–) 24...Qe4 (24...Qe2 25.Qg6 Qb5 26.ab6 ab6 27.Bd2+–) 25.Qd2 (better is 25.Qg3!?+/–) 25...h4= 26.ab6 ab6 27.h3 Bd6?? (better is 27...Qe2=) 28.Qa2+– Kc8 (28...Nd7 29.Qa7 Kc8 30.Ba3+–) 29.Qa8 Re7? (29...Qe2 30.Bd2 Qb5 31.Rfc1 Kd8 32.Qb7+–) 30.Bd2 Rhe8 (30...Rd8 31.Rae1 Qf5 32.Re7 Be7 33.Qa7+–) 31.Ra6 Rb7 32.Rc1 Rc7 33.Re1 Qe1 34.Be1 Re1 35.Kf2 Rb1 (35...Rce7 36.Rb6 Bf4 37.Kf3+– (37.Qd5?! R1e4 38.Qg8 Re8 39.Qc4 Kd8 40.Qd5 Kc8 41.Qf5 Nd7 42.Rc6 Bc7+–)) 36.Rb6 Rb2 37.Nd2! Rd7 (37...Rd2 38.Ke3 Decoy) 38.Rd6 Rd6 39.Qa3 Rd2 40.Ke3 1–0. Vegjeleki,Adolf (2145) – Zylla,Johannes (2265), WSTT/3/06/Semifinal, 2008.

    8.Nc3 Nc6 9.Qb3 Qd7 10.b5 Nd8 11.Rc1 Bd6 12.b6=.

    8.Nc3 Nc6 9.b5 Nce7 10.Qb3 f5 11.Nh3 Ng6 12.Rc1=.

    8.Nc3 Nc6 9.Rc1 Rc8 10.Qa4 a6 11.Qb3 Kf7= 12.Nge2=.

    8.Nc3 Nc6 9.Nge2 Bd6 10.Na4 b6 11.Nf4 Bf4 12.ef4=.

    8.Nc3 Nc6 9.Nh3 Bd6 10.Nf4 Bf4 11.ef4 Nge7 12.Na4=.

    8.Nc3 Bd6 9.Nh3 (9.Nb5 Be7=) 9...f5 (9...Ne7 10.Nb5=) 10.Qh5+= g6 11.Qg5 (11.Qd1 Nc6=) 11...Nf6 (11...Nc6 12.Qd8 Rd8 13.Ng5+=) 12.Be2 (12.Nb5 Be7 13.Qg3 Na6+=) 12...Nc6 13.0-0 Bf7 (13...Ng4 14.Qd8 Rd8 15.Ng5=) 14.Qh6 (14.Nb5 Be7 15.Qg3 Rc8+=) 14...Ng4= ½–½. Bjazevic,Pavao (2245) – Zylla,Johannes (2265), corr WSTT/3/06/Semifinal, 2008.

    8.Ne2 Bd6 9.Nbc3 Nc6 10.Na4 Nge7 11.Nc5 Bc8 12.Nc3=.

    8.Ne2 f5 9.Nf4+= Qb6+=.

    8.Ne2 f5 9.Nf4+= Bf7 10.h4 (10.Bb5!? Nc6 11.0-0+=) 10...Nf6= 11.Nc3 (11.Nd2 Bd6=) 11...Bd6 12.Qb3 (12.Bb5 Nbd7=) 12...Nbd7 (12...Nc6 13.Bb5= (13.Nfd5? Bd5 14.Nd5 Nd5–+)) 13.g3 (13.Nfd5 Nd5 14.Nd5 0-0+=) 13...0-0 (13...Bf4 14.gf4 Rc8 15.Rc1+=) 14.Bh3 (14.Nfd5 Nd5 15.Nd5 Nb6–+) 14...g6 (14...Bf4 15.gf4 Be6 16.Rc1+=) 15.Na4 (15.h5 g5 16.Nfe2 g4+=) 15...Qe7 (15...Bf4 16.gf4 Rc8 17.Nc5+=) 16.0-0 h6 (16...Rac8 17.Nc5 Nb6 18.Rfc1+=) 17.Ne2 (17.Nc3 Nb6+=) 17...Ng4 (17...Rac8 18.Nc5 b6 19.Nd7 Qd7 20.Rfc1-/+) 18.b5 (18.h5 gh5 19.Rac1 Ndf6+=) 18...Ndf6 (18...Rac8 19.h5 gh5 20.b6+=) 19.Bc3 (19.Rfc1 Rfc8+=) 19...g5 (19...Rfc8 20.Rfc1+=) 20.hg5+= hg5 21.Bb4 (21.Nc5 b6 22.Na6 Qd7=) 21...Rad8 (21...Bb4 22.ab4 Bh5 23.Rfc1=) 22.b6 (22.Bd6 Rd6 23.Nc5 Kg7=) 22...ab6 (22...Bb4 23.ab4 a6 24.Nc5=) 23.Nb6 (23.Bd6 Qd6 24.Nb6 Kg7+=) 23...Kg7 (23...Be6 24.Rfc1+=) 24.Rfc1 (24.Bd6 Qd6 25.f3 Nh6+=) 24...Rh8= 25.Bg2 (25.Bd6 Qd6 (25...Rd6? 26.Nc8 Rc8 27.Rc8+–) 26.Bg2 Rh2=) 25...Nh2 (25...Bb4 26.ab4 Qe6 27.Na4=) 26.Nc8 (26.Bd6 Qd6 27.Rab1 Bh5=) 26...Rc8 27.Rc8 Rc8 28.Kh2 (28.Bd6 Qd6 29.Kh2 Qa6=) 28...Bb4 (28...Rh8 29.Kg1 b6 30.Bd6 Qd6 31.f3=) 29.ab4 (worse is 29.Qb4 Qb4 30.ab4 Ng4 31.Kg1 Rc2-/+) 29...Bh5 30.Nc3 Bf3? (30...Rh8 31.Kg1 Qe6 32.Ra7=) 31.Kg1 (31.Bf3 ef3 32.Nd5 Qe6–+) 31...Kg6?? (31...Bg2 32.Kg2 Qe6 33.Rh1=) 32.Kf1 (32.Bf3 ef3 33.Nd5 Qf7 34.Nf4 gf4 35.Qf7 Kf7 36.gf4 Ng4–+) 32...Qh7 (32...Qc7 33.Bf3 Qc3 34.Qc3 Rc3+=) 33.Nd1 (better is 33.Nd5 Qf7 34.Bf3 Qd5 35.Bd1+/–) 33...Rh8 (33...Rh8 34.Ke1 Bg2–+) 0–1. Sjoeberg,Mats (2430) – Rychagov,Mikhail (2485), Excelsior Cup, 1997.

    8.Nh3 Bd6 9.Nf4 (9.Bb5 Nd7 10.Nf4 Bf4 11.ef4 a6 12.Be2=) 9...Bf4 10.ef4 Ne7 11.Qh5 g6 12.Qd1=.

    7.f4 ef4

    8.Bb5 Nc6 9.Nh3 (9.ef4!? Kf7 10.Qf3=) 9...fe3-/+ 10.Nf4 Bf7 11.de3 Bd6 12.Nc3 The pressure on the isolated pawn grows (12.Nd5? Bd5 13.Nc3 Be5–+ (13...Bg2?! 14.Rg1-/+)) 12...Nge7 13.0-0 (13.Nfd5? Nd5 14.Nd5 Bd5–+) 13...Be5 Black prepares d4 14.Nd3 0-0 15.Ne5 fe5 16.e4? (better is 16.Qe1-/+) 16...Qb6–+ 17.Kh1 d4 18.Nd5 Qb5 19.Nc7 Qb6 20.Na8 Ra8 21.Rf7 (21.Qd3 a6–+) 21...Kf7 22.Qb3 Ke8 23.Rc1 Kd7 (23...a5!? 24.Qh3–+) 24.Qh3 Kd6 25.Qh7 Qb5 26.Qg7 Rd8 (better is 26...Qe2!? 27.Qf6 Kd7 28.Ba1–+) 27.Qf6 Kd7 28.Qf3 b6 29.Qh3 Kc7 30.Re1 Rf8 31.Kg1 a5 32.Bc1 (32.Qh6 Rg8–+) 32...ab4 33.Bg5 ba3 34.Be7 Ne7 35.Qa3 Kd7 36.Qa7 Kd6 37.Rc1 (37.Qa3 Qc5 38.Qb2–+) 37...Nc6 (better is 37...Qb3 38.Kh1 Nc6–+) 38.Qa3 Nb4 39.Rb1 Kd7 40.Qa7? (40.h3 Rf2! 41.Qg3-/+) 40...Ke6 41.h3 (41.Qa3 Qe2 42.Qg3 Rf4–+) 41...Qc5 42.Kh2 Qa5 (better is 42...Kd6!? 43.Qa4 Nc6 44.Qd1–+) 43.Qg7 Qc5 44.Qg4?? (44.Qa7 Kd6 45.Qg7–+) 44...Ke7 (44...Kd6 45.Qg6 Kc7 46.Qg7 Kb8 47.Rc1–+) 45.Qg5 Kd7 46.Rc1 Qd6 47.Qg7 Kd8?? (better is 47...Ke6 48.Rc7 Qd8+=) 48.Ra1+– Nc6 49.Ra8 Nb8 50.Qb7 Qc7 51.Rb8 (51.Qb8?! Qb8 52.Rb8 Ke7 53.Rb7 Kd8 54.Rb8 Ke7 55.Rb7 Kd6 56.Rb6 Kc5=) 51...Kd7 52.Qc7 (better is 52.Qd5!? Ke7 53.Rb7 Qb7 54.Qb7 Ke6 55.Qd5 Kf6 56.Qd6 Kf7 57.Qc7 Kg6 58.Qe5 Rf6+–) 52...Kc7 53.Rf8 Kd6 54.Kg3 Kc5 55.h4 (55.h4 d3 56.Rd8+–) 1–0. Bulcourf,Carlos (2205) – Urchipia,Carlos (2080), Villa Martelli Pro–Am op, 2004.

    8.ef4 Nc6 9.Bd3 Nh6 10.Nf3 Bd6 11.0-0 (11.b5 Ne7=) 11...Bf4+= 12.Qe2 Qd7 13.Re1 Kf7 14.Qf1 (14.b5 Na5+=) 14...Kg8 15.Bb5 Ng4 (15...Bg4 16.h3 Be6 17.Nc3+=) 16.h3 (16.Bd4 a5+=) 16...Nh6 17.Nc3 Bf7 (17...Bg3 18.Re2+=) 18.Ne2= Bc7 19.Ned4 Bb6 20.Kh1 (20.Re3 Nf5 21.Nf5 Qf5=) 20...Qd6 (20...Bg6 21.Rac1 Rc8 22.a4=) 21.Rac1 (21.Bc6 bc6 22.d3 c5 23.bc5 Bc5=) 21...Nd4+= 22.Nd4 Bc7 (22...a6 23.Be2+=) 23.Qg1 Bg6 (23...a6 24.Bd3+=) 24.Ba4 (24.Re6 Qd8=) 24...Bb6 25.Qh2 Qh2 26.Kh2 Kf7 (26...a5 27.Bb3 Bf7 28.Ne6+/–) 27.Bb3 (27.Ne6 Nf5 28.Bb3 Ne7=) 27...Rhd8 28.a4 (28.Ne6 Rd6=) 28...Rd7 (28...a5 29.Ne6 Rd6+=) 29.a5+= Bd4 30.Bd4 Nf5 31.Ba4 Nd4 32.Bd7 Nc2 33.Rf1 d4 34.Ba4 d3 (worse is 34...Nb4 35.Rc7 Kf8 36.Rb7+–) 35.Rf4 Rc8 36.Bd7 (36.Rd4 Rc7+= (worse is 36...Nd4 37.Rc8 b5 38.ab6 ab6 39.Be8 Ke6 40.Bg6 hg6 41.Rc3+/–)) 36...Rd8 (36...Rc7 37.Bb5+=) 37.Bg4 b5 (37...Re8 38.Rc4+=) 38.Kg3 (38.h4 h5 39.Bf3 Nd4=) 38...Ke7 (38...Re8 39.h4+=) 39.Bf3 Kd6 40.h4 h5 41.Rf1 Re8 42.Kf2 Re7 43.Rb1 (43.Rc1 Ke5 44.Kg3 a6=) 43...Ke5 44.Kg3 a6 45.Rc1 Rd7 46.Rf1 Kd6 47.Kf2 Rc7 (47...Re7 48.g4=) 48.g4 hg4 49.Bg4 Ke5 50.Kg3 Be4 51.Bf5 Bf5 (51...Rc4 52.h5 Bf5 53.Rf5 Ke6 54.h6+=) 52.Rf5 Ke6 (52...Kd6 53.R5f4 Rc4 54.Rc4 bc4 55.Rg1+=) 53.R5f4+= Rd7 54.h5 Nd4 (54...Kd5 55.Rg4 Ke5 56.Rf3=) 55.Re4 Kf7 (55...Kd5 56.Kf4 f5 57.Re8+=) 56.Kf2 f5 (56...Nc2 57.Rg1+=) 57.Rh4 Nc2 58.Kg2 Ke6 (58...Rd5 59.Rg4+=) 59.h6 gh6 60.Rh6 Ke5 61.Ra6 Rg7 62.Kf2 Kd5 (62...Rg4 63.Ra8+/–) 63.Rf6 1–0. miquelstone – marekt, ChessWorld.net, 2005.

    8.ef4 Nh6 9.Bb5 Nc6 10.Qe2 (10.Nf3 Bg4=) 10...Kf7 11.Nf3 Bd6 12.0-0 (12.Bc6!? bc6 13.0-0+=) 12...Re8 (worse is 12...Bf4 13.g3 Qb6 14.d4+=) 13.Bc6 bc6 14.Nd4 Bd7 15.Qd3 (15.Qh5 Kg8+=) 15...Qb6 16.Kh1 Re4 (16...c5 17.Ne2 Qb7 18.Nec3-/+) 17.Nb3 Rf4 (worse is 17...Bf4 18.Nc3 Bf5 19.Ne4 Be4 20.Qh3+/–) 18.Nc3 (18.Rf4!? Bf4 19.Bd4-/+) 18...Bf5 19.Qe2 Re8 20.Qh5 Bg6 21.Qh3 Qc7 (better is 21...Nf5 22.Rf4 Bf4-/+) 22.Nc5? (22.Rf4!? Bf4 23.Rc1-/+) 22...Bc5–+ 23.bc5 Rf1 (better is 23...Rb8!? 24.Rf4 Qf4 25.Qd7 Kg8 26.Nd5 cd5 27.Qd5 Kh8 28.Bc3–+) 24.Rf1 Re5 (24...Qb7!? 25.Nd1 Qb5 26.Kg1–+) 25.Qg3-/+ Qe7 26.Nd1 (26.d4!? Nf5 27.Qf2-/+) 26...Re2 27.Bc3 (27.d4 Be4 28.Rg1 Qb7-/+) 27...Nf5 28.Qf4 (28.Qg4 Re1 29.Qf3 d4–+) 28...Re4 (28...Qc5!? 29.Qf3 Qe7 30.Bb4–+) 29.Qf2-/+ d4 30.Bb4 Qe5 31.Kg1 (31.Rg1 Rh4 32.g3 Qe4 33.Rg2 Rg4-/+) 31...Rh4 (31...Re2 32.Qf4–+) 32.g3-/+ Re4 33.Qf3 Ne7 34.Nf2 Re2 35.Ng4 (35.Rd1!?–+) 35...Qe4 36.Qe4 Re4 (36...Be4 37.Nf2–+) 37.Nf2 Re2 38.Nh3 Bf5 39.Nf4 Re5 40.h4 h6 41.Kf2 g5 42.hg5 hg5 43.Ng2 (43.Ne2 Bd3 44.Re1 Nf5–+) 43...Bh3 (43...Bd3 44.Rc1–+) 44.Rg1 (44.Re1 Nd5–+) 44...Bg2 (better is 44...Rf5!? 45.Ke2 Ke6 46.Ne1–+) 45.Rg2 Nd5 46.Rh2 Kg7 47.Rh1 f5 48.Rh5 (48.Rb1 Nf6–+) 48...g4 (48...Nf6 49.Rh1–+) 49.Rg5 Kf7 50.Rh5 Nf6 51.Rh8 Re8 (51...Ne4 52.Kg2–+) 52.Rh1 (better is 52.Re8 Ke8 53.Kg2–+) 52...d3 53.Rg1 Re2 54.Kf1 Ne4 55.Rg2 Rg2 56.Kg2 Ke6 57.Ba5 Kd5 58.Bb6 ab6 (worse is 58...Nd2 59.Bc7–+) 59.cb6 Nd6 (59...Kd6!? 60.a4 Nd2 61.Kf2–+) 60.Kf2 Ke4 (better is 60...Kc5 61.Ke3 Kb6 62.Kd3–+) 61.a4 Nb7 0–1. Bulcourf,Carlos (2155) – Sola,Ruben (2335), XV PRO AM Open, 2008.

    8.ef4 Bd6

    9.Bb5 Nc6 10.Qh5 (10.Ne2 Bg4=) 10...Bf7 (10...g6 11.Qf3+=) 11.Qg4 Kf8 (11...Bg6 12.Nc3 Nge7 13.Nge2=) 12.Bd3 (12.Ne2 Nh6 13.Qg3 a5=) 12...Qb6 13.Ne2 Re8 14.Nbc3 Nh6 15.Qd7 Bf4 (15...Nb8 16.Qb5 Bf4 17.Qb6 ab6 18.Rd1=) 16.Nd5 Bd5 17.Qd5 Rd8 (17...Ne5 18.Be5 Be5 19.Rb1=) 18.Qc5 (18.Qh5!? Be5 19.Be5 Ne5 20.Be4=) 18...Qc5+= 19.bc5 Be3 (19...Bg5 20.Nc1+=) 20.de3= Rd3 21.Bd4 Kf7 (21...Nf5 22.Nc1 Nfd4 23.Nd3 Nc2 24.Ke2 Na1 25.Ra1=) 22.0-0 (22.Nc1 Nd4 23.Nd3 Nc2 24.Ke2 Na1 25.Ra1 Re8+=) 22...Re8 Exerts pressure on the isolated pawn 23.Rfd1 (23.Rfb1 Re7 24.Ra2 Nd4 25.ed4 Nf5=) 23...Rd1+= (worse is 23...Nd4 24.Rd3 Ne6 25.Rc1+–) 24.Rd1 Ng4 (24...Nd4 25.Nd4 Re3 26.Rb1+=) 25.Rb1 Re7 26.Ng3 (26.h3 Ne3 27.Be3 Re3 28.Rb7 Ke6=) 26...g6 (26...Kg6 27.Rb3+=) 27.Nf1 (27.Rb3 Ke6+=) 27...f5 28.h3 (28.Nd2 Ke6 29.h3 Nge5+=) 28...Nf6 (28...Nge5 29.Nd2+=) 29.Nd2 Nd5 (29...Rd7 30.Rb2+=) 30.Nc4= Nd4 (30...Ke6!?=) 31.ed4 b6 32.cb6 (32.Nd6 Kf6+=) 32...Nb6 (32...ab6 33.Rb5 (worse is 33.Nb6 Rb7-/+) 33...Nc3 34.Rb6 Ne2 35.Kf2 Nd4 36.Rd6 Re2 37.Kg3=) 33.Ne5 (33.Nb6 Rb7+=) 33...Ke6= 34.Nc6 (34.Kf2 Rc7=) 34...Rc7 35.Na7 Ra7 36.Rb6 Kd5 37.Rb3 Kd4 38.Kf2 Kc4 (38...Rc7 39.Rb4 Rc4 40.Rb7=) 39.Rf3 (39.Re3 f4 40.Re4 Kd5 41.Rf4 Ra3=) 39...Ra5 40.h4 h6 41.Rg3 Ra6 (41...g5 42.hg5 f4 43.Rg4 hg5 44.g3=) 42.Rf3 Ra5 ½–½. Bulcourf,Carlos (2280) – Panno,Oscar (2505), Buenos Aires FMD tt, 1993.

    9.Bb5 Nd7 10.Qh5 (10.Ne2 Qb6=) 10...Kf8 (10...g6!? 11.Qf3 a6+=) 11.Ne2= a6 12.Bd3 White intends f5 12...Nh6 13.0-0 White intends f5 13...Nb6 (13...a5 14.Nd4 Bf7 15.Qh3=) 14.f5 Bf7 15.Qh4 Nc4 16.Bc4 (16.Bd4 a5+=) 16...dc4= 17.Bd4 Be5 (better is 17...a5!?=) 18.Be5+/– fe5 19.f6 Ng8 (19...Qb6 20.Kh1+/–) 20.fg7 Kg7 21.Qg3 Bg6 22.Qe5 Nf6 23.Nd4 (23.Nbc3!? Re8 24.Qg3+=) 23...Re8= 24.Qf4 (24.Ne6 Re6 25.Qe6 Qd4 26.Qe3 Qa1 27.Nc3 Qa3 28.Qe7 Kh6 29.Qf6+– (29.Rf6?! Qc1 30.Rf1 Qd2=)) 24...Re4? (better is 24...Bd3 25.Rc1 Nd5=) 25.Qe4!+/– Ne4 (25...Be4 26.Ne6 A double attack) 26.Ne6+– Theme: Double Attack 26...Kg8 27.Nd8 Rd8 28.Ra2 b5 (28...Rd3 29.Re1+–) 29.Nc3 (29.Nc3 Nd2 30.Rf6+/–; 29.a4 Rd3+–) 1–0. Bulcourf,Carlos (2295) – Miravent,Pablo (1970), Martinez Valle op2, 1993.

    9.Bd3 Bf4 10.Nh3 Qd6 11.Qh5 Kd8 12.0-0? (better is 12.Nf4 Qf4 13.Rf1+= (13.Bh7? Ne7–+)) 12...Bh2–+ 13.Kh1 Bh3 (13...Be5 14.Be5 Qe5 15.Nf4 Qh5 16.Nh5-/+) 14.Qh3 Qg3?? (better is 14...Be5 15.Be5 fe5–+ (15...Qe5?! 16.Nc3 Nh6 17.Rae1+=)) 15.Qh2= Qd3 16.Rc1 Ne7?? (better is 16...Nd7 17.Qc7 Ke8 18.Qb7 Rd8 19.Qa7 Ne7+=) 17.Qc7+– Ke8 18.Qb7 Nd7 (18...Kf7 19.Qa8 a6+–) 19.Qa8 Kf7 20.Qa7 (better is 20.Qh8 Nf8 21.a4+–) 20...Qf5 21.Qe3 Qg4 22.Qh3 h5 (22...Qh3 23.gh3 Rb8 24.Bd4+–) 23.Rf1 (23.Qg4 hg4 24.Kg1 Rb8+–) 23...Nf8 (23...Qh3 24.gh3 Rb8+–) 24.Be5 (24.Qg4 hg4 25.Kg1 Ne6+–) 24...Qe4 (24...Qe2 25.Nc3 Qe5+–) 25.Bd6 Qc4 (25...Qe6 26.Be7 Qh3 27.gh3 Ke7 28.a4+–) 26.Nc3 Neg6 (26...Nfg6 27.a4+–) 27.Rae1 1–0. Bulcourf,Carlos (2270) – Jungblut,Jose (1980), Villa Ballester de Invierno op 4th, 2004.

    9.Bd3 Bf4-/+ 10.Nh3 Bh3 11.Qh5 Kf8 12.Qh3 Qe7 13.Kd1 Nd7 14.Nc3 (14.Bh7? g5 15.Qf3 Qh7 16.Qd5 Qh5 17.Kc2 Rc8 18.Nc3 Rc7–+) 14...Nb6 15.Ne2 (15.Re1 Be5=) 15...Be5+= 16.Nd4 Na4 17.Ne6 (17.Bc3 Nh6+=) 17...Kf7-/+ 18.Be5 Qe6 (18...fe5 19.Rf1 Nf6=) 19.Qe6= Ke6 20.Bd4 Ne7 21.Rc1 (21.Re1 Kf7 22.Bb5 Nf5 23.Bf6 Kf6 24.Ba4 Nd4=) 21...Nc6+= 22.Re1 Kd6 23.Ba1 Rae8 24.Re8 Re8 25.Bb5 (25.Bh7 Ne5=) 25...Nb6+= 26.Bd4 Rc8 27.Bc5 Ke6 28.Rc3 Ne5 29.Re3 Nbc4 30.Bc4 dc4 31.Bd4 (31.Ba7 Kd5-/+) 31...b6 32.Kc2 Kd5 33.Be5 fe5 34.Rh3 h6 35.Rg3 Rc7 36.Kc3 b5 (36...e4 37.b5–+) 37.Rg6-/+ Rd7 38.d3 (38.Ra6 Ke4-/+) 38...e4 (38...Rc7 39.Ra6-/+) 39.dc4 (39.de4!? Ke4 40.a4 Rd3 41.Kc2-/+) 39...bc4–+ 40.Rg3 Ke5 (40...g5 41.Re3–+) 41.Kc4 Rc7 42.Kb3 Kd4 43.Rg6 e3 44.Rd6 Ke4 45.Re6 Kd3 46.Rd6 Ke2 47.b5?! (47.Rd8–+) 47...Kf2 48.Rd5 Re7 (48...Kg2?! 49.Re5 Kf3 50.Rf5 Ke4 51.Rf8–+) 49.a4 e2 50.Rd2 Kg2 51.h4 Kh3 (51...Kh3 52.Re2 Re2–+) 0–1. Bulcourf,Carlos (2270) – Sorin,Ariel (2505), Buenos Aires–chT Intercoop, 2004.

    9.Qh5 Bf7 10.Qg4 Qe7 11.Kf2=.

    6.cd5 Bd5

    7.Nc3 Be6

    8.Nf3 a5 9.b5+= A) 9...c5 10.d4 ed4 11.ed4 Nd7 12.Bd3+=; B) 9...Ne7 10.d4 Nd7 11.Bd3 Rc8 12.bc6+=; C) 9...Nh6 10.d4 Nd7 11.Bd3 Nf7 12.bc6+=; D) 9...Be7 10.Rc1 (10.d4 Nd7 11.Bd3 Bg4 12.0-0+/–) 10...c5 11.d4 ed4 12.ed4+/–; E) 9...g5 10.bc6 (10.h3 g4 11.hg4 Bg4 12.Rc1+=) 10...Nc6 11.d4 Qb6 12.Na4+/–; F) 9...Bg4 10.h3 (10.Rc1 Ne7 11.d4 ed4 12.Qd4+=) 10...Bh5 11.d4 ed4 12.Qd4+=; G) 9...Nd7 10.Be2 (10.bc6 bc6 11.d4 Rb8 12.Rb1+=; 10.d4 Rc8 11.bc6 bc6 12.Rb1+=) 10...Rc8 11.d4 c5 12.de5+=.

    8.Nf3 b5 9.d4 a5 10.ba5 Nd7 11.e4 Bg4 12.d5+/–.

    8.Nf3 Nd7 A) 9.Be2 A1) 9...Nh6 10.d4 (10.0-0 a5 11.b5 cb5 12.Bb5+=; 10.Rc1 Be7 11.d4 0-0 12.d5+=) 10...Be7 11.Bd3 a5 12.b5+=; A2) 9...Kf7 10.d4 (10.0-0 a5 11.b5 cb5 12.Nb5+=) 10...Be7 11.Bd3 a5 12.b5+/–; A3) 9...Be7 10.d4 (10.0-0 Nh6 11.d4 a5 12.b5+=) 10...Nh6 11.Bd3 a5 12.b5+=; A4) 9...Bd6 10.d4 Ne7 11.Ne4 Bc7 12.de5+=; A5) 9...a5 10.b5 Rc8 11.d4 Be7 12.0-0+=; A6) 9...Ne7 10.d4 Nf5 11.0-0 a5 12.b5+=; A7) 9...f5 10.0-0 (10.Rc1 Bd6 11.e4 Nh6 12.d4+=; 10.e4 fe4 11.Ne4 Ngf6 12.Qc2=; 10.d3 Nh6 11.e4 a5 12.b5=; 10.Rb1 Bd6 11.0-0 Qe7 12.d4=) 10...Bd6 11.e4 Nh6 12.ef5+=; B) 9.d4 B1) 9...Be7 10.Bd3 (10.Rc1 Rc8 11.Bd3 Bg4 12.h3+=; 10.de5 fe5 11.Ne4 Bd5 12.Qc2+=) 10...Nh6 11.0-0 Bg4 12.h3+=; B2) 9...a5 10.b5 (10.ba5 Ra5 11.Bd3 Bg4 12.Be2+=) 10...Rc8 11.bc6 bc6 12.Rb1+=; B3) 9...Nh6 10.Bd3 (10.de5 Ne5 11.Ne5 fe5 12.Qh5+=; 10.Rc1 Nf5 11.d5 cd5 12.Nd5+=) 10...Bg4 11.h3 Bh5 12.g4+=.

    8.Nf3 Ne7 9.d4 Nd7 10.Bd3 (10.de5 Ne5 11.Ne5 fe5 12.Qc2+=; 10.Rc1 Nf5 11.d5 cd5 12.Nd5+=; 10.Ne4 Ng6 11.Bd3 Be7 12.Nc3=; 10.Be2 Nd5 11.Ne4 Qc7 12.de5+=) 10...a5 11.b5 Rc8 12.bc6+=.

    8.Nf3 Bg4 A) 9.d4 A1) 9...Nd7 10.Be2 (10.h3 Bf3 11.Qf3 ed4 12.ed4+=) 10...Nh6 11.0-0 Be7 12.Rc1+=; A2) 9...a5 10.b5 (10.ba5 Ra5 11.Be2 ed4 12.Nd4+=) 10...ed4 11.Qd4 Qd4 12.Nd4+=; B) 9.Be2 B1) 9...Nd7 10.0-0 (10.d4 Bf3 11.Bf3 ed4 12.Qd4+/–; 10.h3 Bf3 11.Bf3 Nh6 12.0-0+=; 10.Rc1 f5 11.h3 Bf3 12.Bf3+=) 10...a5 11.b5 Rc8 12.bc6+/–; B2) 9...a5 10.ba5 (10.b5 cb5 11.Qb3 Qd7 12.Nd5+=) 10...Ra5 11.d4 ed4 12.Nd4+=; C) 9.h3 C1) 9...Be6 10.d4 (10.Rc1 Nd7 11.d4 Rc8 12.Qa4+=) 10...Nd7 11.Qc2 a5 12.b5+/–; C2) 9...Bf5 10.d4 (10.e4 Be6 11.d4 Nd7 12.Bd3+=) 10...Nd7 11.Qb3 Bg6 12.de5+=; C3) 9...Bh5 10.d4 Nd7 11.Be2 Bf3 12.Bf3+=.

    8.Nf3 Nh6 9.d4 Nd7 10.Bd3 (10.de5 Ne5 11.Ne5 fe5 12.Qh5+=; 10.Rc1 Nf5 11.d5 cd5 12.Nd5+=) 10...Nf7 11.0-0 Be7 12.Qc2+=.

    8.Nf3 g6

    9.d4 Nd7

    10.Rc1 a5 11.b5 Rc8 12.Bd3+/–.

    10.Rc1 Bg4 11.Be2 Bf3 12.Bf3+/–.

    10.Bd3 Bg4 11.Be2 ed4 12.Nd4+=.

    10.Be2 a5 11.b5 Rc8 12.de5+/–.

    10.de5 fe5 11.Ne4 Qc7 12.Neg5 Bg4 13.Bc4+/–.

    10.de5 fe5 11.Ne4 Bg4 12.Qb3 Qe7 13.Rd1 Bf3 (13...0-0-0 14.Nd6 Kc7 15.Nf7+/–) 14.gf3 (14.Nd6 Qd6 15.Rd6 Bd6 16.Qe6 Be7 17.gf3 Ngf6+–) 14...Nh6 (14...0-0-0 15.Nd6 Qd6 16.Rd6 Bd6 17.Qe6+–) 15.Nd6 Kd8 (15...Qd6 16.Rd6 Bd6 17.Qe6 Be7+–) 16.Bh3 Kc7 17.Nb5!! Kb6 (17...cb5 18.Qd5 (18.Rd7; 18.Qc2)) 18.Rd7 (18.Bd7 cb5 19.Bb5 Qf7+–) 18...Qf6 19.Nc7 Bb4 1–0. Gavrijski,Dimitar (2010) – Kubacek,Josef, corr ICCF WSTT/3/06/2, 2006.

    10.de5 fe5 11.Ne4 Bg4 12.Qb3 Bf3 13.Qe6 Qe7 14.Nd6 Kd8 15.Nb7 Kc7 16.Nc5 Bg4 (16...Bg7 17.Qe7 Ne7 18.Ne6 Kd6 19.Ng7 Bd5=) 17.Na6+– Kb7 18.Qg4 Nh6 (18...Ngf6 19.Qc4+–) 19.Qe4 Bg7 (19...Rc8+–) 20.b5 Nb8 21.bc6 Nc6 22.Rb1 Rac8 23.Be5 1–0. Cottarelli,Franco (2185) – Kubacek,Josef, corr ICCF WSTT/3/06/2, 2006.

    10.de5 fe5 11.Ne4 Bg4 12.h3 Bf3 13.Qf3 Qe7+/–.

    6.Nf3 Bd6

    7.Qb3 Ne7 8.Nc3 Nd7 9.d4 e4 10.cd5 Bd5 (worse 10...cd5 11.Ne4 Bc7 12.Nc5 Nc5 13.dc5+-) 11.Nd5 cd5 12.Nd2 f5 13.g3 0-0 14.b5 Nf6 15.a4 Kh8 16.h4 Qd7 17.Be2 Rfc8 18.a5 b6 19.Nb1 (19.ab6 ab6 20.Ra6 Qc7=) 19...Qc7 20.ab6 ab6 21.Ra8 Ra8 22.Kd2 g6 23.Nc3 Kg7 24.Rc1 Qa7 (24...Qb8 25.Rc2=) 25.Bd1 (25.Ra1 Qb7+=) 25...h6 26.Na4 Kf7 27.Ke2 Ke6 28.Ra1 Qb7 29.Rc1 Ne8 30.Kf1 Nc7 31.Nc3 Ra5 Exerts pressure on the isolated pawn 32.h5 g5 33.g4 Kf6 34.gf5 Nf5? (34...Kg7 35.Na4+=) 35.Bg4 Be7?? (better 35...Ne7+=) 36.Ne4!+- de4 (36...Kg7 37.Bf5 Nb5+-) 37.d5 Kf7 38.Rc7 (38.Rc7 Rb5 39.Qc3 Qd5 40.Qf6 Ke8 41.Rc8 Bd8 42.Bf5 Qd3 43.Kg1 Qb1 44.Kh2 Qg1 45.Kg1 Rd5 46.Qg6 Kf8 47.Qg7 Ke8 48.Bg6) 1-0. Steffens,Olaf (2185) - Pahl,Erik (1980), Bremen Silvester Open, 2018.

    7.Nc3 dc4+= 8.Ne4 Nh6 (8...Bd5 9.Qc2 b5 10.Nd6 Qd6+=) 9.Qc2 b5 10.d3 (10.Rd1 Nf7=) 10...cd3 (10...a5+=) 11.Bd3 Be7 12.Rd1 Qc8 13.Ng3 Bg8 (13...a5!? 14.ba5 g6+=) 14.Bb5+= Qe6 15.Ba4 Qc4 16.Rc1 Qc2 17.Rc2 Bd5 (17...a5!? 18.b5 cb5 19.Bb5 Nd7+=) 18.e4+/– Be6 19.Ke2 (19.Bc1!?+/–) 19...Bd7+= 20.h3 Bc8? (20...a5 21.ba5 Ra5 22.Bb3+=) 21.Re1 (21.Rc6 Nc6 22.Bc6 Kf7 23.Ba8 Ba6 24.Ke1 Ra8+/–) 21...Kd7? (better is 21...Bd7+=) 22.b5+– c5? (22...Kc7 23.Rd1+–) 23.Bc1 (better is 23.b6 Kd8 24.Rd2 Bd6 25.Rd6 Ke7 26.Red1+–) 23...Kc7 24.Bh6 gh6 25.Nf5 (25.Rb1 Bd7+/–) 25...Bf8 (25...Bf5 26.ef5 a6 27.Rc3+=) 26.Nd2 (26.Ne3 Bb7 27.Bb3 Nd7+–) 26...Nd7 27.Nc4 Nb6 28.Nb6 (28.Bb3 Bf5 29.ef5 a6 30.Nb6 Kb6 31.ba6 Ra6+/–) 28...Kb6 (better is 28...ab6!? 29.Bb3 Ra3+=) 29.Ne3+/– Rg8 30.g3 (30.Bb3!? Rg7 31.Bd5+/–) 30...Rg7 31.Nc4 Kb7 32.Rd2 1–0. Bulcourf,Carlos – Anelli,Antonio, San Martin Argentina, 1987.

    7.c5 Bc7= 8.Be2 Nd7 9.d4 e4 10.Nfd2 f5=.

    7.cd5= cd5 8.Nc3 Nc6 9.Na4 (9.b5 Nce7=) 9...Nge7=+ 10.Rc1 (10.Nc5 Bc5 11.bc5 0-0=+) 10...0-0 11.Nc5 Bc5 12.Rc5 Qd6 (12...e4 13.Nd4 Nd4 14.Bd4=) 13.Qc2 (13.d4!?=) 13...b6=+ 14.Rc3 d4 15.ed4 ed4 16.Qd3 Bf5 17.Qc4 Kh8 18.Rc1 Rac8 19.Qb3 (19.Qb5 Qe6 20.Qe2 Qa2-/+) 19...d3 20.g3 (20.Nh4 Ne5 21.Rc8 Rc8 22.Nf5 Nf5-/+) 20...Nd4 21.Nd4 Rc1 22.Bc1 Qd4 23.f3 Ng6 24.Qa4 Rc8 25.Kd1 Rc1! 26.Kc1 Qa1 0–1. Parr,Erik – Gullaksen,Eirik T (2365), Troll Masters, 1995.

    7.cd5 cd5 8.d4 e4 9.Nfd2 Ne7 10.Nc3 Nd7 11.Rc1 Rc8 12.Nb5 (12.Qb3 f5=) 12...Nb6 (12...Bb8 13.Rc8 Qc8 14.Be2=) 13.Rc8 (13.Na7 Rc1 14.Bc1 0-0+=) 13...Nbc8 14.Nd6 Qd6 15.h3 (15.Qh5 g6 16.Qd1 0-0+=) 15...0-0= 16.Nb3 b6 17.Ba6 Ng6 18.Qd2 (18.h4 Nge7=) 18...Nce7 (18...Qd7 19.Qc2=+) 19.g3 (19.h4 Nf5 20.h5 Nge7=) 19...Bc8 (19...Qd7 20.b5=+) 20.Bc8 (better 20.Bf1!?=) 20...Rc8-/+ 21.0-0 f5 22.Rc1 Qd7 23.Rc8 Nc8 24.h4 Nd6 25.Qc3 h6 26.Nd2 Kh7 27.Qc2 Ne7 28.a4 Nc6 29.b5 Nb4 30.Qc3 Nd3 31.Ba3 Nc4 32.Nc4 dc4 (better 32...Qc7!?=+) 33.Qc4+= Qe8 (better 33...Ne1+=) 34.Qd5?? (better 34.Qc7+–) 34...Qh5-/+ 35.Qa2?? (better 35.Bd6-/+) 35...Qd1 36.Kh2 Qa4 (36...Ne1 37.Bd6 Nf3 38.Kg2 Qg1 39.Kh3 Qf1) 37.d5?? (better 37.Qd5=) 37...Qd1–+ (37...Qb5?! 38.d6 Qd7 39.f3 ef3 40.Qd5–+) 38.d6 (38.g4 Qg4 39.Qa1 Qh4 40.Kg1 Qf2 41.Kh1 Qf3 42.Kh2–+) 38...Qh5 (38...Ne1 39.f3 Nf3 40.Kg2 Qg1 41.Kh3 Qh1 42.Qh2 Qh2) 39.d7+– f4 (39...Qf3 40.d8Q Qf2 41.Qf2 Nf2+–) 40.d8Q fg3 41.fg3 Qg4 (41...Qh4 42.gh4 Ne5 43.Qag8 Kg6 44.Qde8 Kf5 45.Qge6) 42.Qg2 (42.Qdg8 Kg6 43.Qaf7) 42...Qf3 (42...Ne5+–) 43.Qf3 ef3 44.Qd3 g6 (44...Kh8 45.Bb2 Kg8 46.Qc4 Kf8 47.Ba3 Ke8 48.Qc7 a5 49.Qe7) 45.Qe4 (45.Qd7 Kg8 46.Qe8 Kg7 47.Bb2 Kh7 48.Qf7) 45...f2 46.Qf3 (46.Qe7 Kg8 47.Qf8 Kh7 48.Qf7 Kh8 49.Bb2) 46...g5 (46...Kg7 47.Qf8 Kh7 48.Qf7 Kh8 49.Bb2) 47.Qf2 (47.Qf7 Kh8 48.Bb2) 47...gh4 (47...Kg6 48.Bb2 Kh5 49.Qf3 Kg6 50.h5 Kh7 51.Qf7) 48.Qf5 (48.Qf7 Kh8 49.Bb2) 48...Kg7 49.gh4 (49.Bb2 Kg8 50.Qg6 Kf8 51.Ba3) 49...h5 50.Bb2 Kg8 51.Qf6 (51.Qf6 a5 52.Qg7) 1–0. BeepBeepImAJeep (2550) – ITALIAA1900 (1880), lichess.org, 2017.

    7.cd5 cd5 8.Be2 Nc6 9.d4 e4 10.Nfd2 Nge7 11.Nc3 a6 12.Qb3 Rc8 (better 12...f5=) 13.Nce4! Bf7 (13...de4 A pinning theme 14.Qe6 A pinning theme) 14.Nc5 (14.Nd6 Qd6 15.b5 ab5 16.Qb5 0-0+–) 14...Bc5 (14...Qc7 15.Rc1+–) 15.bc5+– Rb8 16.0-0 0-0 17.Bc3 Ng6 (17...Bg6 18.Qa4+–) 18.Rab1 Qe7 19.Qa4 Rfe8 (19...f5 20.Bd3+–) 20.Ba6 Nd4 21.Qd4 (better 21.Bd4!? ba6 22.Rb8 Rb8 23.Qa6 Ne5+–) 21...ba6 22.Rb6 Rb6 23.cb6 Qa3 The passed pawn on b6 quickly leads to threats (23...Ne5 24.a4+–) 24.Ra1 Qe7 25.Ra6 Ne5 26.h3 (26.Qb4 Qb7 27.Ra7 Qc6+–) 26...Nc6 27.Qd3 Qb7 (27...Rb8+–) 28.Nb3 (better 28.Qb5+–) 28...Bg6? (28...Nb8 29.Ra7 Qb6 30.Bd4+=) 29.Qf1?? (better 29.Qb5 d4 30.ed4+–) 29...Nb8+= 30.Nc5 Qc8? (better 30...Qc6 31.Ra5 Qb6+=) 31.Ra5+– Nc6 32.b7 Qb8 (32...Qc7 33.Rb5 Nb8 34.Qd1+–) 33.Rb5 (better 33.Qb5 Na5 34.Ba5+– (34.Qa5?! d4 35.Bd4 Re7+–)) 33...Ne7?? (33...Qd6+–) 34.Na6 Qa7 35.b8Q Rb8 (35...Qa6 36.Bd4 Qe6+–) 36.Rb8 Be8 (36...Kf7 37.Qb5+–) 37.Bd4 (better 37.Re8 Kf7 38.Qb5 Nf5+–) 37...Kf7 (37...Qd7+–) 38.Ba7 Nf5 39.Rb7 Kg6 40.Qd3 Bc6 41.g4 Bb7 (41...Ba4 42.Qf5 Kh6 43.Qh5) 42.Qf5 Kf7 43.Qd7 Kg6 44.Qb7 (44.Qe8 Kg5 45.Qh5) 44...Kh6 (44...h5 45.gh5 Kh5 46.Qg7 f5 47.Qf6 f4 48.ef4 d4 49.Qg5) 45.Qd5 (45.Qf7 g6 46.h4 d4 47.Qf8) 45...g5 (45...g6 46.Bd4 Kg7 47.Qd7 Kg8 48.Bf6 Kf8 49.Qe7 Kg8 50.Qe8) 46.Qf5 (46.Qf7 f5 47.Qf6) 46...Kg7 47.Bd4 h5 (47...h6 48.Qf6 Kg8 49.Qg7) 48.Qf6 Kh7 (48...Kg8 49.Qg7) 49.Qg7 1–0. BeepBeepImAJeep (2570) – kaba_kaba (2330), lichess.org, 2017.

    5.d3 c5

    6.b5 Qa5 7.Bc3 Qa4 8.Bd2 Qb5 9.d4 Qd7 10.de5 fe5 11.Nf3-/+ Nc6-/+.

    6.b5 a6 7.c4 d4 (7...ab5 8.cb5 d4 9.a4-/+) 8.a4 ab5 9.ab5 Ra1 10.Ba1 Qa5 11.Nd2 Nh6 12.e4 Be7 13.Ngf3 0-0 14.Be2 Nd7 15.0-0 Nf7 16.Bb2 Ra8 17.Qc2 Qd8 18.Ra1 Ra1 19.Ba1 Qa8 20.Bb2 Nd6 21.h3 f5 22.ef5 Bf5 23.Bc1 b6 Black prepares the advance e4 24.Nh2 e4 (24...Qa1!?+=) 25.de4= Be4 26.Ne4 Qe4 (worse is 26...Ne4 27.Bf3 Ndf6 28.Nf1+/–) 27.Bd3 Qe1 28.Nf1 Nf6 29.Bd2 Qe5 30.Ng3 Bd8 31.Qa4 Bc7 32.Qa8 Qe8 33.Qe8 Nde8 34.Ne4 Kf7 35.Nf6 Kf6 (35...Nf6 36.Kf1=) 36.Kf1 (better is 36.Bh7!? g6 37.Bg8+/–) 36...h6 37.Ke2 g5 38.h4 Bf4 39.Bf4 gf4 40.Kf3 Ke5 41.Kg4 Nf6 42.Kf3 Ne8 ½–½. Aubertin,Tim – Schmitt,Adolf (1805), 1.Saarlouis op, 1998.

    6.b5 a6 7.d4 cd4 8.ed4 Nd7=+.

    6.b5 Bd6 7.c4 (7.d4 A) 7...Nd7 8.de5 (8.Nf3 cd4 9.ed4 e4 10.Nfd2 Ne7 11.c4+=) 8...Be5 9.Bc3 Ne7 10.Nf3 0-0 11.Be2+=; B) 7...cd4 8.ed4 Qc7 9.Nd2 Nd7 10.Rc1 Qa5 11.c4+=; C) 7...ed4 8.ed4 c4 9.Nf3 Qa5 10.Nc3 a6 11.a4+=) 7...Ne7 8.Be2 (8.Qh5 Bf7 9.Qf3 a6 10.Nc3 Bc7 11.cd5+=) 8...0-0 (8...a6 9.ba6 Ra6 10.Nf3 0-0 11.0-0+=) 9.Nf3 Nd7 (9...a6 10.Qa4 Nd7 11.Nc3+=) 10.0-0 Qc7 (10...a6 11.Nc3+=) 11.Nbd2 (11.Nc3=) 11...Rfd8 12.cd5 Bd5 13.e4 Bf7 14.Qc2 Ng6 15.g3 Ngf8 16.Nc4 Be7 17.Nfd2 Ne6 18.Ne3 Rac8?? (better is 18...Nb6+=) 19.Nd5+– Qd6?? (19...Nd4 20.Ne7 Kf8 21.Bd4 cd4 22.Qc7 Rc7+–) 20.Nc4 Nd4 21.Nd6 Nc2 (21...Bd6 22.Bd4 cd4 23.Qa4+–) 22.Ne7 Kf8 23.Nec8 Na1 24.Ra1 Be6 (24...Nb6 25.Nb6 ab6 26.Nf7 Kf7 27.f4 ef4 28.gf4+–) 25.Na7 Nb6 (25...Ra8 26.Nac8+–) 26.Nb7 Ra8 27.Nc5 Bh3 28.Nc6 Kf7 29.a4 Ke8 30.g4 g6 31.f3 (31.d4 ed4 32.Bd4 h5 33.gh5 g5+–) 31...h5 32.Kf2 f5 33.Be5 (better is 33.gh5!? gh5 34.Kg3 fe4 35.Kh3 e3+–) 33...hg4 34.fg4 Nd7 35.Nd7 Kd7 36.Kg3 Bg4 37.Bg4 fg4 38.Kg4 Rf8 39.Kg3 Ke6 40.d4 1–0. Holz auf der Heide,G – Grabara,M, Templin, 2004.

    6.b5 Ne7 7.Nd2=+.

    6.c4? cb4!? 7.ab4 Bb4 8.Bc3 Nc6-/+.

    6.c4? Nc6 7.b5 (7.cd5 Bd5 8.b5 Qa5 9.Qd2 Qd2 10.Nd2 Nb8=) 7...Na5 (7...Nce7 8.Nd2+=) 8.Nf3 (better is 8.cd5!? Bd5 9.Nc3=) 8...dc4-/+ 9.dc4 (9.Nc3 cd3 10.Bd3 Nb3-/+) 9...Qd1–+ (9...Nc4 10.Qb3 Nb2 11.Qe6 Be7 12.Be2 Nd3 13.Kf1=) 10.Kd1 0-0-0 (10...Rd8 11.Ke1 Nc4 12.Bc4 Bc4 13.Nc3–+) 11.Nbd2 (11.Ke1 Nc4 12.Bc4 Bc4–+) 11...Nc4 (11...e4 12.Bc3 Nc4 13.Ke1-/+) 12.Kc2-/+ Nd6 13.Rc1 Ne7 (better is 13...e4 14.Ng1 Kb8-/+) 14.Nc4?? (better is 14.Bd3-/+) 14...Nc4–+ 15.Bc4 (15.Kb1 Nd2 16.Nd2 Rd2 17.Rc5 Kb8–+) 15...Bc4 16.a4 Bd3 (16...Nd5 17.Bc3–+) 17.Kb3 c4 (better is 17...Nd5 18.Nd2–+) 18.Kc3 (18.Rc4 Bc4 19.Kc4 Ng6–+) 18...Nd5 19.Kd2 Bb4 20.Kd1 c3 21.Ba1 Ba3 22.Rc3 (22.b6 ab6 23.Rc3 Nc3 24.Bc3 Bb5 25.Kc2 Ba4 26.Kb1 Rd3–+) 22...Nc3 23.Kd2 (23.Bc3 Bb5 24.Kc2 Ba4 25.Kb1–+) 23...Ne4 24.Ke1 Bb4 25.Kd1 Nf2 (25...Nf2 26.Kc1 Nh1–+) 0–1. Goldmund,Heike – Aahlad,Yeturu (2005), FICGS, 2017.

    6.b5 Nd7

    7.a4 Bd6 (7...Nh6 8.Nf3=+) 8.Nd2 Nh6 9.a5 (9.Ngf3 Qa5=+) 9...0-0 10.a6 Qc7 11.c4 Nb6 12.Ngf3 Qf7 (12...ba6 13.Ra6 Rfb8 14.Qb3=+) 13.Be2= ba6 14.Ra6 e4 (14...Rfd8!?=) 15.de4 (15.cd5 Bc8 16.de4 Ba6 17.ba6 Rab8+/-) 15...dc4 16.Qc2 Rfd8 17.0-0 Ng4 18.h3 Ne5 (18...Nh6 19.Rd1+/-) 19.Be5 Be5 (19...fe5?? 20.Ng5 Qf6 21.Ne6 Qe6 22.Rb6+-) 20.Ne5 fe5 21.Rfa1 Rd7 (21...Re8 22.Qc3+-) 22.Rb6! Rad8? (22...ab6 23.Ra6 Double attack (23.Ra8 Discovered attack; 23.Ra8 Pinning; 23.Ra8 Deflection; 23.Ra8 Decoy; 23.Ra8 Remove defender; 23.Ra8 Clearance)) 23.Re6! Rd2 (23...Qe6 24.Qc4 Double attack (24.Qc4 Decoy)) 24.Qc4 Re2 25.Qe2 Qe6 26.Ra7 c4 (26...Rc8 27.Qd1 c4 28.Rc7+-) 27.Ra6 Qc8 (27...Qf7 28.Rc6 Rb8 29.Rc4+-) 28.Rc6 Qb8 (28...Qb7 29.Qc4 Qf7+-) 29.Qc4 Kh8 30.Rc7 h6 (30...Rg8 31.Qc5 Qa8 32.b6 Qe4 33.Rc8+-) 31.Qc5 Qa8 (31...Kh7 32.Qe5 Rd1 33.Kh2+-) 32.b6 Qa1 33.Kh2 Qe1 34.Rc8 (34.Rc8 Rg8 35.b7 Qd2 36.Rg8 Kg8 37.Qc8 Qd8 38.Qd8 Kf7 39.b8Q Kg6 40.Qe5 Kh7 41.Qdc7 Kg6 42.Qcg7) 1-0. PEREIRA – Bambu, internet, 2022.

    7.c4 Qa5 8.Qd2 (8.Bc3 Qb6 9.Be2 d4 10.Bd2 a6 11.Qa4 Bd6+=) 8...Qd2 9.Nd2 A) 9...Ne7 10.Ngf3 (10.Be2 d4 11.Ngf3 a6=) 10...d4 (10...a6 11.ba6 Ra6=) 11.Be2= de3=; B) 9...a6 10.ba6 Ra6 11.Rb1 Ne7=.

    7.c4 Nb6 8.Nd2 A) 8...Bd6 9.Rc1 dc4 10.dc4 Qe7 11.Ngf3 Rd8=; B) 8...Qd7 9.a4 dc4 (9...0-0-0 10.a5 Na8 11.cd5 Bd5=) 10.dc4 0-0-0 11.a5= Na8=; C) 8...Nh6 9.Ngf3 Bd6 10.Be2 0-0 11.0-0 a6=; D) 8...Ne7 9.e4 d4 10.Be2 a6 11.a4 Ng6=.

    7.d4 cd4 8.ed4 A) 8...Bd6 9.Nd2 Rc8 (9...Ne7 10.c4 0-0 11.Bd3+= Rc8+=) 10.Be2 Ne7 11.de5 Be5+=; B) 8...Rc8 9.de5 Qa5 10.Nd2 fe5 11.Bd3 e4-/+.

    7.d4 Bd6 A) 8.Be2 cd4 (8...Ne7 9.de5 Ne5 10.Nc3 0-0 11.Nh3 Bh3+=) 9.ed4 Rc8 10.Nd2 Ne7 11.de5+= Be5+=;; B) 8.de5 fe5 9.Nf3 (9.Qh5 g6 10.Qd1 Ngf6 11.Nf3 Qa5+=) 9...Ngf6 10.Ng5 Bf5 (10...Bg4 11.f3= Bh5=) 11.e4 Ne4+=;; C) 8.Nf3 cd4 9.ed4 e4 10.Nfd2 Rc8 11.c4+= e3=.

    7.Nf3 A) 7...Bd6 8.c4 Ne7 9.Be2 a6 (9...Nb6 10.Nbd2 0-0 11.0-0 a6=) 10.Nc3 0-0 11.0-0= ab5=; B) 7...a6 8.ba6 Ra6 (8...ba6 9.Nbd2 Rb8 10.Rb1 e4 11.Ng1= Qa5=) 9.d4 Rb6 10.Bc3 cd4 11.ed4 Qc8+=; C) 7...Qa5 8.Bc3 Qa4 9.d4 e4 10.Nfd2 c4 11.Be2-/+ Qb5-/+.

    6.bc5 Bc5

    7.Nd2 Nc6 8.Ngf3 Bd6 A) 9.Be2 A1) 9...Nge7 A11) 10.c4 0-0 (10...Rc8 11.0-0 0-0 12.Rc1 Qb6 13.Rb1 Qc7=; 10...Qc7 11.Rc1 dc4 12.dc4 Ng6 13.Bd3 Bc5=) 11.0-0 Rc8 12.Rc1 Qb6 13.Qc2 Na5+=; A12) 10.0-0 0-0 (10...Rc8 11.c4 0-0 12.Rc1 Qb6 13.Qc2 Rfe8=) 11.c4 Rc8 12.Rc1 Qb6 13.Qc2 Ng6=; A2) 9...Qa5 10.0-0 Nge7 11.c4 0-0 12.cd5 Nd5 13.d4 ed4=; A3) 9...Rc8 A31) 10.0-0 Nge7 11.c4 0-0 12.Rc1 Qb6 13.Rb1 Qc7=; A32) 10.Rc1 Qe7 (10...Qb6 11.Rb1 Qc7 12.c4 dc4 13.Nc4 Be7=; 10...Nge7 11.c4 Qb6 12.Qc2 0-0 13.d4 Qd8=) 11.a4 Nh6 12.0-0 0-0 13.c4 Bb4+=; A33) 10.c4 Nge7 11.0-0 0-0 12.Rc1 Qb6 13.Rb1 Qc7=; B) 9.c4 Nge7 B1) 10.cd5 Bd5 (10...Nd5+= 11.d4 ed4 12.Nd4 Nd4 13.Bd4 0-0=) 11.e4 Be6 12.d4 ed4 13.Nd4 Nd4=; B2) 10.Rc1 0-0 (10...Qa5 11.Qb3 dc4 12.dc4 Rd8 13.Bd3 Rd7=; 10...Qb6 11.Qc2 0-0 12.cd5 Bd5 13.d4 ed4=) 11.c5 Bc7 12.Be2 b6 13.Nb3 b5+=; B3) 10.Be2 0-0 (10...Rc8 11.0-0 0-0 12.Rc1 Qb6 13.Qc2 Nf5=; 10...Qc7 11.Rc1 dc4 12.dc4 Qa5 13.Qb3 Rd8=) 11.0-0 Rc8 12.Rc1 Qb6 13.Qc2 Na5=.

    7.Nd2 Nc6 8.Ngf3 Qe7 9.Be2 (9.d4 Bd6 (9...ed4 10.ed4 Bd6 11.Be2 g5 12.0-0 g4 13.Ne1 h5 14.Nd3=) 10.de5 fe5= 11.Bb5 Bf7 12.c4 Nf6 13.Qa4 0-0 14.Bc6=) 9...Nh6 (9...Bd6 10.0-0 (10.c4 Nh6= 11.cd5 Bd5 12.e4 Be6 13.d4 ed4 14.Nd4 Nd4=) 10...Rd8 11.Qb1 Nh6 12.Rc1 0-0 13.c4 Nf7 14.cd5 Bd5=) 10.0-0 (10.d4 Bd6= 11.de5 fe5 12.c4 e4 13.Nd4 Nd4 14.Bd4 Qg5 15.Bh5=) 10...0-0 11.Nb3 Bd6 12.Nfd2 Rac8 13.h3 Bb8 14.Re1 Qc7 15.Nf1 Ne7 16.Rc1 Qb6 17.Rb1 Qc7 18.Rc1 Qb6 19.Qd2 (19.Rb1 Bd6+=) 19...Rc6 20.Bc3 Qc7 21.Bb2 Rc8 22.c3 b5 23.d4 a6 24.Nc5 Bf7 25.a4 Qb6 26.Na6 ba4 (26...Qa6? 27.ab5 Qb6 28.bc6 Qc6 29.Ra1+–) 27.Nc5 Rc5 (27...Bd6!? 28.Ba3 Bc5 29.Bc5 Rc5=) 28.dc5+= Rc5 (better is 28...Qc5!? 29.Ra1 Qa5+=) 29.Ba3+– Rc7 30.Rb1 Qa7 31.c4 Rc8 32.c5 Nc6 33.Rb6 Na5 34.Ra6 Nb3 35.Ra7 Nd2 36.Ra8 Nb3 37.Ba6 Rd8 38.c6 d4 39.Rb8! Rb8 (39...Rb8 40.c7) 40.c7 Ra8 41.c8Q Rc8 42.Bc8 d3 43.Ba6 e4 44.Bb4 f5 (44...Be8 45.Bc4 Bf7 46.Bb5+–) 45.Nd2 (better is 45.Bb5 a3 46.Ba3+–) 45...Nd2 46.Bd2 a3 47.Rc1 a2 (47...Be6 48.Bc4 Kf7+–) 48.Rc8 Be8 49.Bc4 (49.Bc4 Kh8 50.Re8 Ng8 51.Rg8; 49.Re8?! Kf7 50.Bc4 Ke8 51.Ba2 Nf7+–) 1–0. Valenta,Vit (2170) – Kopecky,Jiri (2005), Znojmo CZE Open, 2006.

    7.d4 Qb6 8.Bc3 ed4 9.Bd4 (9.ed4 Bd6 10.Bd3 Ne7 11.Nf3 Nbc6 12.0-0=) 9...Bd4 10.Qd4 Qd4 11.ed4 Nc6 12.Nf3=.

    7.d4 ed4

    8.Bb5 Nc6 9.ed4=.

    8.ed4 Qb6 9.Ra2 Bd6 10.Bd3 (10.Nf3 Ne7 11.Bd3 Ng6 12.0-0 Nf4 13.Nc3=) 10...Nc6 11.Qh5 Kd8 12.Ne2 Qa5 13.Nbc3=.

    8.ed4 Qb6 9.Bc3 A) 9...Be7 10.Bd3 (10.Nf3 f5 11.Nbd2 Nf6 12.Rb1 Qc7 13.Bb5=) 10...f5 11.Qf3 Nf6 12.Bf5 0-0 13.Be6=; B) 9...Bd6 10.Bd3 (10.Nf3 Nc6 11.Bd3 Nge7 12.0-0 0-0 13.Re1=) 10...Ne7 11.Nf3 Nbc6 12.0-0 0-0 13.Re1=.

    8.ed4 Bd6 9.Bb5 Nc6 (9...Nd7 10.Qh5 Bf7 11.Qg4 Qe7 12.Ne2 Be6 13.Qf3=) 10.Nf3 (10.Nd2 Qb6 11.c4 Kf8 12.Ne2 Na5 13.Bc3+=) 10...Qa5 11.Nc3 Nge7= 12.0-0 0-0 13.Re1=.

    8.ed4 Bd6 9.Bd3 Nc6 10.Nf3 Nh6 11.0-0 0-0 12.Nbd2=.

    8.ed4 Bd6 9.Bd3 Ne7 10.Nf3 (10.Qe2 Qd7 11.Nf3 Ng6 12.Bc1 0-0 13.Bg6+=; 10.Nd2 0-0 11.Ngf3 Nbc6 12.0-0 Ng6 13.Bg6=) 10...Ng6 11.0-0 Nf4 12.Re1 0-0 13.Bc1=.

    8.ed4 Bd6 9.Nf3 Nc6 10.Nbd2 (10.Bd3 Nh6 11.0-0 0-0 12.Nc3 a6 13.Bc1=) 10...Nge7 11.Be2 0-0 12.0-0 Re8 13.c4=.

    8.Bd4 Bd4

    9.Bb5 Nc6 10.Bc6 bc6 11.ed4 Bf5 12.Ne2 Ne7 13.0-0 0-0 14.Re1=.

    9.Bb5 Bd7 10.Bd7 Qd7 (10...Nd7 11.Qd4 Nb6 12.Ne2 Ne7 13.Nbc3 Rc8 14.0-0=) 11.ed4 Nc6= 12.Ne2 Nge7 13.0-0 0-0 14.Re1=.

    9.ed4 Nc6 10.Nf3 Nge7= 11.Bd3 Qb6 12.a4=.

    9.Qd4 Nc6

    10.Qb2 Qa5 11.Nd2 A) 11...Nge7 12.Bd3 a6 13.Ngf3 b5 14.0-0 0-0 15.Nb3+=; B) 11...Qc7 12.Ngf3 (12.Bd3 Nge7 13.Rb1 b6 14.Ngf3 0-0 15.0-0=; 12.Rb1 b6 13.Ngf3 Nge7 14.Bd3 0-0 15.0-0=) 12...Nge7 13.Bd3 0-0 14.0-0 Rac8 15.Rfb1=; C) 11...b6 12.Ngf3 Nge7 13.Bd3 0-0 14.0-0 Qa4 15.Nb3+=; D) 11...Rc8 12.Qb7 (12.Bd3 Qc7 13.Ngf3 Nge7 14.Rb1 b6 15.0-0=; 12.Ngf3 Bg4 13.Be2 Rc7 14.0-0 Nge7 15.c4+=) 12...Nge7 13.Qa6 Qc3 14.Rc1 Qb2 15.Ne2+=; E) 11...Rb8 12.Ngf3 Bg4 13.Bb5 Nge7 14.0-0 0-0 15.Bd3=.

    10.Qb2 Qc7 A) 11.Bd3 A1) 11...Rc8 12.Nd2 (12.Nf3 Nge7 13.0-0 0-0 14.Nbd2 b6 15.Rfd1=) 12...Nge7 13.Ngf3 0-0 14.0-0 Rfe8 15.Rab1=; A2) 11...Nge7 12.Nd2 (12.Nf3 0-0 13.Nbd2 Rac8 14.Rb1 b6 15.0-0=) 12...a6 13.Ngf3 b5 14.0-0 0-0 15.a4=; A3) 11...Bg4 12.h3 Be6 13.Nf3 Nge7 14.0-0 Rc8 15.Nbd2=; A4) 11...f5 12.Nd2 (12.Ne2 Nf6 13.Nbc3 Rd8 14.0-0 a6 15.Nf4=; 12.Nh3 Rd8 13.0-0 Nf6 14.Nd2 0-0 15.Rfb1=; 12.Nf3 Nf6 13.0-0 0-0 14.Nc3 Ne4 15.Nb5=) 12...Nf6 13.Ne2 0-0 14.Rb1 b6 15.Nf4+=; A5) 11...Ne5 12.Nd2 Ne7 13.Rb1 b6 14.Ne2 N7c6 15.Nf4=; B) 11.Nf3 B1) 11...Rc8 12.Nbd2 (12.Bd3 Nge7 13.0-0 0-0 14.Nbd2 b6 15.Rfd1=) 12...Nh6 13.Rb1 b6 14.Ba6 Rd8 15.Bb5+=; B2) 11...Nge7 12.Bd3 (12.Nbd2 0-0 13.Bd3 Rac8 14.0-0 b6 15.Rab1=) 12...0-0 13.0-0 Rac8 14.Nbd2 Rfe8 15.Rfb1=.

    10.Qb2 Qd7 11.Nf3 A) 11...Nge7 12.Nbd2 Rd8 13.Nb3 Qc7 14.Bd3 Bf5 15.0-0+=; B) 11...Rc8 12.Bd3 (12.Nbd2 Nge7 13.Rb1 Bf5 14.Qb7 Bc2 15.Qd7=) 12...Nge7 13.Nbd2 Bf5 14.0-0 0-0 15.Rfd1=; C) 11...Rd8 12.Bb5 (12.Nd4 Nge7 13.Ne6 Qe6 14.Qb7 d4 15.Qb3=) 12...a6 13.Bc6 bc6 14.Qb6 Ra8 15.0-0=.

    10.Qb2 Nge7 11.Nf3 Qc7 (11...Bg4= 12.Nbd2 Bf3 13.Nf3 Qa5 14.Nd2 Rc8 15.Qb7+=) 12.Nbd2 (12.Bd3 0-0 13.Nbd2 Rac8 14.Rb1 b6 15.0-0=) 12...a6 13.Bd3 b5 14.0-0 0-0 15.a4=.

    10.Bb5 Nge7 11.Nf3 (11.Ne2 0-0= 12.Qd2 (12.Qb2 Qb6 13.Qb3 Qc7 14.0-0 a6 15.Bd3 b5 16.Nd2=) 12...a6 13.Bd3 b5 14.0-0 Qd6 15.Rd1 Qe5 16.c3=) 11...0-0 12.Qd2 a6 13.Bd3 Bg4 14.Be2 Bf3 15.Bf3 Ne5 16.Be2 Rc8 17.0-0 Qc7 18.Ra2 Rfd8 19.Bd3 N7c6 (19...Ng4!? 20.g3 Ne5+=) 20.Bf5= Nc4 21.Qe2 Rb8 22.Be6 Kh8 23.Bd5 Ne3 24.Qe3 Rd5 25.Nd2 Rbd8 26.Nf3 Ne5 27.Ne5 Re5 28.Qb3 Rc5 29.a4 Rc3 30.Qb1 h6 31.Rb2 Rd7 32.Rd1 Re7 33.Re1 Re1 34.Qe1 Qc6 (34...Rc2?? 35.Qe8 Kh7 36.Qe4 Kh8 37.Qc2+–) 35.Qb1 Qa4 36.Rb7 Qc2 (36...Rc2?? 37.Rb8 Kh7 38.Rb2+–) 37.Qc2 Rc2 38.h4 h5 39.Rb6 Ra2 40.f3 Kh7 41.Kh2 a5 42.Ra6 Kg6 43.Ra7 a4 44.Kh3 a3 45.Kh2 Ra1 46.Kh3 a2 47.Kh2 Kf5 48.Kg3 Ke5 49.Ra4 Kd5 50.Kf4 g6 51.Ra6 Kd4 52.Ra3 Kc4 53.Ra8 Kd3 54.Kg3 Ke3 55.Re8 Kd2 56.Ra8 Ke1 57.Ra3 (57.f4 Kf1–+) 57...g5 58.hg5 fg5 59.Kh2 Kf2 (59...Ke2 60.g3–+) 60.g3 Ke2 (60...Re1 61.Ra2 Kf3 62.Ra3 Re3 63.Ra5 Re2 64.Kh3 g4 65.Kh4 Rh2 66.Kg5 Kg3 67.Ra3 Kg2 68.Kf4–+) 61.Kg2 Kd2 62.Ra8 h4 63.gh4 gh4 64.f4 h3! 65.Kh2 (65.Kh3 Rh1) 65...Ke3 (65...Kc3 66.f5 Kb2 67.Rb8 Ka3 68.Ra8 Kb3 69.Rb8 Kc4=) 66.f5= Kf4 67.f6 Kg5 68.f7 Rf1 69.Kh3 Rf7 70.Ra2 ½–½. Schwarz,B – Juehe,Heinrich, OWL–ch Altenbeken, 1948.

    5.d3 Bd6

    6.c4 c5 7.bc5 Bc5 8.d4=.

    6.Nd2 a5 7.b5 Ne7 A) 8.d4 0-0 9.c4 ed4 10.Bd4 c5 11.bc6 Nbc6+=; B) 8.Qh5 B1) 8...g6 9.Qf3 Nd7 10.c4 (10.Be2 c6 11.bc6 Nc6+=) 10...0-0 11.d4+= 11...ed4=; B2) 8...Bf7 9.Qg4 0-0 10.Be2 Qd7 11.Qd7 Nd7+=; C) 8.Ngf3 c6 (8...0-0 9.Be2 Qd7 10.c4 c6 11.bc6 Nbc6=) 9.e4 d4 10.c3 dc3 11.Bc3 Bc5=; D) 8.Be2 0-0 9.Ngf3 c6 10.c4 cb5 11.cb5 Qb6+=; E) 8.c4 0-0 9.d4 c5 10.de5 Be5 11.Be5 fe5=.

    6.Nd2 a5 7.c3 A) 7...Nh6 A1) 8.Ngf3 b5 (8...0-0 9.Be2 b5 10.0-0 Nd7 11.a4 ba4+=; 8...Qd7 9.Be2 0-0 10.0-0 ab4 11.ab4 Ra1+=) 9.e4 0-0 10.d4 c6 11.Qc2 ed4+=; A2) 8.Be2 0-0 (8...b5 9.Ngf3 0-0 10.0-0 c6 11.Qc2 Nf7=; 8...Qd7 9.Ngf3 0-0 10.0-0 ab4 11.ab4 Ra1+=; 8...ab4 9.ab4 Ra1 10.Qa1 0-0 11.Ngf3 Na6=; 8...Nd7 9.Ngf3 0-0 10.0-0 Nf7 11.Nb3 b6+=; 8...Nf5 9.Bg4 ab4 10.ab4 Ra1 11.Ba1 Qd7=; 8...f5 9.Ngf3 0-0 10.c4 ab4 11.ab4 Ra1=) 9.Ngf3 Nd7 10.0-0 Nf7 11.e4 c6+=; B) 7...Nd7 B1) 8.Be2 b5 (8...Ne7 9.Ngf3 0-0 10.0-0 Qe8 11.Qb3 Qg6+=; 8...ab4 9.ab4 Ra1 10.Qa1 Nh6 11.Ngf3 b6=) 9.Ngf3 Ne7 10.0-0 0-0 11.Qc2 c5+=; B2) 8.Ngf3 Ne7 (8...ab4 9.ab4 Ra1 10.Qa1 Ne7 11.Be2 0-0=) 9.Be2 0-0 10.0-0 Qe8 11.Qb3 Qg6+=; C) 7...Ne7 C1) 8.Be2 b5 (8...ab4 9.ab4 Ra1 10.Qa1 0-0 11.Ngf3 Qd7+=; 8...0-0 9.Ngf3 Nd7 10.0-0 Qe8 11.Qb3 Qg6+=; 8...Qd7 9.Ngf3 0-0 10.0-0 b6 11.Qc2 Qc6=; 8...Nd7 9.Ngf3 0-0 10.0-0 Qe8 11.b5 Nb6+=; 8...c6 9.Ngf3 0-0 10.0-0 Nd7 11.Qb3 c5+=) 9.Ngf3 0-0 10.0-0 Nd7 11.Qc2 c5+=; C2) 8.Ngf3 0-0 (8...b5 9.Be2 0-0 10.0-0 Nd7 11.Qc2 c5+=; 8...Qd7 9.Be2 0-0 10.0-0 ab4 11.ab4 Ra1=; 8...Nd7 9.Be2 0-0 10.0-0 Qe8 11.Qb3 Qg6+=) 9.Be2 b5 10.0-0 Nd7 11.Qc2 c5+=.

    6.Nd2 Nd7 7.Ngf3 Ne7 8.c3 c6 9.e4 0-0 10.d4 Bc7 11.Bd3 de4 12.Ne4 Bg4 13.h3 Bh5 14.g4 Bg6 15.Qc2 Nd5 16.Bc1 ed4 17.Nd4 Re8 18.Bd2 Ne5 19.f3 Nd3 20.Qd3 a5 21.0-0 Bf4 22.Rfe1 Bd2 23.Qd2 Be4 24.Re4 (24.fe4 Nb6=) 24...Re4 25.fe4 Nb6 26.Qa2 Kh8 27.Kg2?? (27.ba5 Nc8 28.a6 Ra6 29.Kg2+=) 27...ab4–+ 28.Qb3 bc3 29.Qc3 Na4 30.Qe3 Qb6 31.Re1 Qb2 32.Re2 Qc3 33.Qc3 Nc3 34.Re3 (better is 34.Rb2!?-/+) 34...Ra3–+ 35.Nc2 Rb3 36.Kf3 c5 (36...Nb1 37.Rb3 Nd2 38.Kf4 Nb3 39.g5–+) 37.h4? (37.Na1 Rb1 38.Rc3 Ra1 39.Rc5 h6-/+) 37...h6 (37...Nb1 38.Ke2 Re3 39.Ne3–+) 38.Kf4? (38.Na1 Rb1 39.Rc3 Ra1 40.Rc5 Rb1-/+) 38...b5 (38...b6 39.h5–+) 39.Kf5 (39.Na1 Rb1 40.Rc3 b4 41.Rc5 Ra1-/+) 39...Kh7 40.g5 b4 41.gf6 gf6 42.Kf6 Rb2 43.Ne1 c4 44.Kf7 (44.Ke6 Re2 45.Ng2 Rg2–+) 44...Rf2 45.Nf3 (45.Ke6–+) 45...Nd1 46.e5 0–1. Alkan,Ceyda – Abdimanoglu,Beste Basak, TUR–ch (Women), 2008.

    6.Nd2 Ne7 7.c4 c5 8.b5 Nd7 9.Ne2 0-0 10.Nc3 f5 11.cd5 Nd5 12.Nd5 Bd5 13.e4 Be6 14.Be2 Nf6 (14...fe4 15.Ne4 Nf6 16.Nd6 Qd6 17.0-0=) 15.0-0= Qe8 16.Rb1 (16.Nc4 Qb5 17.Qc2 Bb8=) 16...Rd8 (16...Qb5? 17.d4 c4 18.Bc3+–) 17.Qc2 Kh8 (17...fe4!? 18.Ne4 Ne4 19.de4 Qf7=+) 18.f4= Nd7 (worse 18...ef4 19.e5 Be5 20.Be5+–) 19.ef5 Bf5 20.Nc4 Bc7 21.Qc3 (21.g4 Qg6 22.fe5 Be6=) 21...Nb6 22.Ne5 Na4 23.Qc4 (better 23.Qb3!? Nb2 24.Qb2 Be5 25.Qe5=+) 23...Nb2-/+ 24.Rb2 Be5 25.fe5 Qe5 26.Rc2 b6 27.Qh4? (27.Rf2 Rd4 28.Qc3 Kg8-/+) 27...Bg6 (27...Bd3 28.Bd3 Qe3 29.Rff2 Rd3 30.g3–+) 28.Rf8 (28.Rf3!?-/+) 28...Rf8–+ 29.Bf1?? (29.h3 h6 30.a4 Rf4–+) 29...Qe3 (better 29...Rf1 30.Kf1 Bd3 31.Kf2 g5–+) 30.Rf2 Rf6 (better 30...h6!?–+) 31.Qg3-/+ Qg3 32.hg3 Rf2 (32...Be8 33.a4-/+) 33.Kf2=+ Kg8 34.Ke3 Kf7 35.d4 cd4 36.Kd4 Ke6 37.Be2 Kd6 ½–½. Wanderley,Rodrigo (1945) – Souza,Marcos Valerio A (2105), 3rd Championship Paraibano Aberto Absol, 2011.

    6.Nd2 Ne7 7.c4 c6 8.g3 (8.Ngf3 b6 (8...a5 9.c5 Bc7 10.Be2 0-0 11.0-0 ab4 12.ab4 Ra1 13.Qa1=) 9.cd5 cd5 10.Be2 0-0 (10...a5 11.b5= a4 12.0-0 0-0 13.d4=) 11.Rc1 a5 12.b5 Qe8 13.a4+=) 8...0-0 9.Bh3 (9.c5 Bc7 10.Bh3 A) 10...Bd7 11.Qh5 a5 12.Bd7 Qd7 13.Nb3 d4 14.e4-/+; B) 10...Qd7 11.Be6 (11.Qh5 a5 12.Be6 Qe6 13.ba5 Nd7 14.Rc1-/+) 11...Qe6 12.Ngf3 b5 13.0-0 a5 14.Bc3+=; C) 10...Bh3 11.Nh3+= 11...Qd7 12.Qh5 a5 13.ba5 Na6 14.d4-/+) 9...Qd7 (9...Bh3 10.Nh3 Qd7 11.g4+=) 10.Be6 Qe6 11.e4 (11.Ngf3+=) 11...Nd7 12.Qb3 b6 13.f3 d4 14.Ne2 c5 15.g4 cb4 16.ab4 a5 17.b5 Bb4 18.Qc2 Nc5 19.0-0 (better is 19.Bc1-/+) 19...g5?? (better is 19...Bd2 20.Qd2 Nb3–+) 20.Nb3= Rad8 21.Ng3 Ng6 22.Nh5 Kf7 23.Ra2 Nb7 24.Ba3 Ba3 25.Ra3 Qe7 26.Rfa1 Ra8 27.Ng3 Nf4 28.Nf5 Qc7 29.Kf2 Rac8 30.Kg3 Rh8 31.h4 (31.Kf2!?=) 31...h5-/+ 32.hg5 hg4 33.Nh6 Kg6 34.Ng4 (34.Qd2–+) 34...Rh3 (better is 34...Qh7!? 35.Nh6 fg5 36.Rh1–+) 35.Kf2 Rch8 36.R1a2 Qh7 37.Nd2 (37.Nh6 Rh2 38.Ke1 Rh1 39.Kd2 fg5 40.Qc1 Qh6 41.Kc2–+) 37...Qh4 0–1. Tej,Yahia – Gelinas,Renaud, Mauricie, 1984.

    6.Nd2 Ne7 7.c4 Ng6 8.Ngf3 A) 8...0-0 9.Be2 b6 (9...Be7 10.0-0 a5 11.b5 a4 12.d4 e4=; 9...a5 10.c5 Be7 11.0-0 Nd7 12.d4 e4=) 10.0-0 c6 11.cd5 cd5 12.Rc1 a5=; B) 8...a5 B1) 9.Qa4 c6 (9...Nc6 10.b5 Nce7 11.Rc1 c5 12.bc6 bc6=; 9...Qd7 10.Qd7 Nd7 11.c5 Be7 12.h4 0-0+=) 10.b5 0-0 11.Be2 Qb6 12.cd5 cd5+=; B2) 9.c5 Be7 10.Be2 b6 11.cb6= (11.Qa4 Qd7 12.Qd7 Bd7=) 11...ab4 12.ab4 Ra1=; B3) 9.b5 c6 (9...a4 10.cd5 Bd5 11.e4 Bf7 12.Nc4 Bc5=; 9...c5 10.Be2 0-0 11.0-0 d4 12.Ne4 Be7=; 9...0-0 10.cd5 Bd5 11.e4 Bf7 12.d4 ed4=; 9...Nd7 10.cd5 Bd5 11.e4 Bf7 12.d4 ed4=) 10.Qa4 0-0 11.Be2 Qb6 12.cd5 cd5=.

    6.Nd2 Nh6 7.c4 c6 8.Be2 0-0 9.Ngf3 Nd7 10.0-0 f5 11.d4 e4 12.Ne5 Qg5 13.cd5 cd5 14.Qb3 Ne5 15.de5 Bc7 16.Rac1 Rf7 17.Rfd1 Raf8 18.Rc2 Bb8 19.f4 Qd8 20.Rdc1 g5 21.Bd4 Rg7 22.Bc5 Re8 23.Bb5 gf4 24.Be8 Qe8 25.ef4 Qg6 26.Nf1 d4 27.Qg3 Qh5 28.Qf2 d3 29.Rd2 b6 30.Bd6 Bd6 31.ed6 Ng4 32.Qd4 e3 33.Rd3 e2 34.h3 ef1Q 35.Rf1 Nh6 36.Qf6 Rg6? 37.Qd8 Kg7 38.Qe7 Nf7 39.Rff3 Bd5 40.Rg3 (40.Rg3 Bc6 41.d7 (41.Qa7?! Qh4 42.Rg6 hg6 43.Qb6 Be4+–) 41...Bd7 42.Rg6 (worse is 42.Qd7 Qh4 43.Rg6 hg6+–) 42...Qg6 43.Kh2+–; 40.Rd5? Qf3 41.Rd2 Qa3–+) 1–0. Schalkwijk,Peter – Jovanovic,Bratislav (2140), SL–2007–0-00120, 2007.

    6.Be2 Nd7 7.Nd2 (7.Nf3 c5+=) 7...f5 (7...c5 8.bc5 Nc5 9.d4=) 8.Ngf3 Ngf6 9.c4 c6 (9...0-0 10.c5 Be7 11.Ne5 Ne5 12.Be5+/–) 10.Ng5 Qe7 (10...Nf8 11.0-0=) 11.e4 (11.Ne6 Qe6 12.c5 Bc7=) 11...0-0 12.Ne6 Qe6 13.0-0 (13.ed5 cd5 14.0-0 b6=) 13...Rac8 (13...fe4 14.de4 Rad8 15.ed5 cd5 16.cd5 Nd5 17.Ne4+=) 14.Rc1 (14.ed5 cd5 15.Re1 Rc6=) 14...Bb8 (14...fe4 15.de4 de4 16.c5+=) 15.cd5 (15.ed5 cd5 16.Re1 Qd6=) 15...cd5 16.Qb3 (16.ed5 Nd5 17.Bf3 Rc1 18.Qc1 b5=) 16...Nb6 17.Bf3 Qd7 (17...Bd6 18.ed5 Nbd5 19.Rfe1=) 18.g3 (18.ed5 Nbd5 19.Ne4 fe4 20.de4 Bd6+/–) 18...Kh8 (18...Na4 19.Ba1=) 19.ed5= Nfd5 20.Nc4 Nc4 21.dc4 Nf6 22.c5 (22.Rfd1 Qc7+/–) 22...e4= 23.Rcd1 Qe8 24.Bg2 Qh5 (24...Be5 25.f3=) 25.f3 f4 (25...Rce8 26.fe4 fe4 27.Rde1+=) 26.g4 (26.fe4 fg3 27.hg3 Be5+/–) 26...Qh4 (26...Qg6 27.fe4 Qg4 28.Qf3+=) 27.Qc3 (27.fe4 f3 28.Qf3 Qh2 29.Kf2 Ne4 30.Ke3 Rf3 31.Bf3 Qb2 32.Ke4 Re8 33.Kd3 Qb3 34.Kd4 Rd8 35.Bd5 Qd5 36.Kc3 Be5 37.Rd4 Bd4 38.Kd3 Be5 39.Ke3 Qd3 40.Kf2 Rf8 41.Ke1 Rf1) 27...e3= 28.Rd5 (28.Qe1 Qe1 29.Rfe1 Rfe8=) 28...Rcd8 (28...Rfe8 29.Rfd1+=) 29.Rd8 Rd8 30.Qc4 (30.Qe1 Qe1 31.Re1 Rd2+=) 30...Rd2-/+ 31.Bc3 Rf2 32.Be1? (better is 32.Qb5 Rf1 33.Qf1+=) 32...Ng4+/– 33.fg4 f3! Theme: Double Attack. Threatening mate: Qxh2 34.Rf2 (34.Bf3 Qh2 A classical mating theme) 34...ef2 35.Bf2 Qh2 36.Kf1 fg2 (36...Qg2?! 37.Ke1-/+) 37.Ke1 g1Q (37...Bg3 38.Kd1 Bf2 39.Qe2 g1Q 40.Kc2 Bc5 41.Qh2 Qh2 42.Kd3 Qg3 43.Kc2–+) 38.Bg1 Qg1 39.Ke2 (39.Kd2 Qg2 40.Qe2 Qd5 41.Qd3 Bf4 42.Kc2 Qa2 43.Kd1 h6–+) 39...Qg2 40.Kd1 Qf3 41.Kc2 0–1. Escobedo Tinajero,Alberto (2300) – Dos Santos,Ramiro (2325), Wch U20 Matinhos, 1994.

    6.Nf3 (--> 5.Nf3 Bd6 6.d3).

    6.g3 Ne7 7.Bh3 Qd7 8.Be6 Qe6 9.Nf3+=.

    6.g3 Nh6 7.Bg2 (7.Bh3 f5+=) 7...c6 8.Nd2 (8.Nf3 0-0+=) 8...0-0 9.Ne2 a5 10.ba5 Qa5 11.0-0 Qb6 (11...Nd7 12.c4+=) 12.Qc1 (12.Rb1!? Qa6 13.c4+=) 12...Nd7-/+ 13.c4 Nc5 14.Qc2 Qa6 15.d4 Bf5 16.e4 Ne4 17.Ne4 de4 18.de5 (18.c5 Bc7 19.Be4 Be4 20.Qe4 Rfe8-/+) 18...e3 19.Be4 (better is 19.Qb3!? Be5 20.Be5 fe5 21.fe3-/+) 19...Be4 20.Qe4 ef2 21.Rf2 Be5 22.Be5 Rfe8 (22...fe5?! 23.Rf8 Rf8 24.Qe5 Qc4 25.Rf1 Rf1 26.Kf1 Qf7 27.Ke1+=) 0–1. Haznedaroglu,Kivanc (2290) – Zylla,Johannes (2265), WSTT/3/06/Semifinal, 2008.

    6.c4 c6

    7.Nc3 Nd7 8.Nf3 Ne7 9.Be2 Rc8 10.0-0 0-0 11.Rc1 Bb8 12.Qd2 Qe8 13.cd5 cd5 14.e4 d4 15.Nb1 Qf7 16.Rc8 Nc8 17.Rc1 g5 (17...b5 18.Bd1+=) 18.a4 Kh8 19.Na3 Ne7 20.b5 (20.h3 h6=) 20...Ng6 (20...g4 21.Ne1+=) 21.Nc4= g4 22.Ne1 f5 23.Ba3 Ne7 (23...Rg8!?=) 24.ef5+/– Bf5 25.Qg5 Be6 26.f3 (26.Bg4?? Qf2 27.Kh1 Qf1) 26...gf3 27.Nf3 (27.Be7? fe2 28.Nf3 e4 29.de4 Rc8–+ (worse is 29...Bc4 30.Bf8 Qf8 31.Rc4–+); 27.Bf3?! e4 28.Qe7 ef3 29.Qf7 Rf7 (29...Bf7? 30.Bf8 Nf8 31.Nf3+–) 30.Nf3 Bf4+/–) 27...e4 (better is 27...Bc4!? 28.Rc4 Re8+/–) 28.de4+– (28.Be7 ef3 29.Bf3 Rg8-/+; 28.Nd4? Qf2 29.Kh1 Bf4 30.Qf4 A) worse is 30...Qf4 31.Ne6 Qf2 32.Nf8 (32.Be7 Rc8 33.Bf1 ed3 34.Bd3 Qf7-/+) 32...Nf8 33.Bf1+– (33.de4?! Qe2 34.Be7 Ng6+=); B) 30...Rf4 31.Ne6 B1) 31...Qe2 32.Nf4 Qf2 33.Nh3= (33.Be7? Qf4 34.Rd1 ed3–+); B2) 31...Rf6–+) 28...Bf4 29.Qe7 (better is 29.Nd6 Qg8 30.Qg8 Rg8 31.Rc7+–) 29...Qg6?? (29...Bc1 30.Qf7 Bf7 (30...Rf7?? 31.Bc1 d3 32.Bd3+–) 31.Bf8 Nf8+–) 30.Nce5! (30.Nd4?! Bh3 31.Bf1 Bc1 32.Bc1 Rf1 33.Kf1 Qg2 34.Ke1 Qg1 35.Ke2 Bf1 36.Kd1 Qd4 37.Nd2 Bh3 38.Qd8 Kg7 39.Qg5 Kh8+–) 30...Qe4 (30...Ne5 31.Qf8 Double attack (31.Qf8 Deflection; 31.Qd6 Decoy); 30...Be5 31.Ne5 Combination) 31.Nd7 Qe2 1–0. Weitering,Peter – Vater,Rainer (1870), Baunatal op 7th, 2001.

    7.c5 Bc7 8.Nf3 b6 9.d4 e4 10.Nfd2 Ne7 11.Be2 0-0=.

    7.Nd2 Ne7 8.Ne2 0-0 9.g3 (9.Ng3 b6 10.Rc1 a5 11.b5 cb5 12.cb5+=; 9.c5 Bc7 10.Ng3 a5 11.d4 ab4 12.ab4=; 9.cd5 cd5 10.d4 a5 11.de5 fe5 12.b5+=; 9.Rc1 Nd7 10.cd5 cd5 11.Qb3 Rc8 12.Rc8+=) 9...a5 (9...Nd7 10.Bg2 Qe8 11.0-0 Qg6 12.Qc2+=) 10.Qb3 (10.c5 Bc7+= 11.Bg2 Na6 12.Bc3+=) 10...dc4 (10...ab4 11.ab4 dc4 12.dc4-/+) 11.dc4 Na6 (11...ab4 12.Ne4-/+) 12.ba5 (12.Ne4-/+) 12...Nc5 13.Qc2 Qa5 14.Nc3 Bf5 15.e4 Bg6 16.f3 f5 17.Bd3 fe4 18.fe4 Nd3 19.Qd3 Bc5 20.Nd1 Bb6 (20...Qc7 21.Nb3 Rad8 22.Qc2-/+) 21.Bc3 Qa7 22.Qe2 Bd4 23.Bd4 Qd4 24.Ra2 Rad8 25.Nf2 Rd6 26.0-0 Rdf6 27.Rc2 Bh5! 28.Qe1 (28.Qh5 Rf2) 28...Bd1 29.Rc1 Bg4 30.Rb1? (better is 30.Kg2 Be6 31.c5-/+) 30...Bh3–+ 31.Qe2 Bf1 32.Rf1 h5! 33.Kg2 (33.Qh5 Qd2) 33...Ng6 34.Nd1 (34.Nh3 Rf1 35.Nf1 Qc3–+) 34...Rf1 35.Nf1 h4 36.Qg4 (36.a4 b6–+) 36...Rf6 (36...h3!? 37.Kh3 Rf1 38.Qg6–+) 37.Nfe3 Nf4! 38.gf4 ef4 (better is 38...Qe4 39.Kh3 Rf4 40.Qe6 Kh7–+) 39.e5 Qe5 40.Nf1 Qe4 41.Kf2 Qd4 42.Ke1 Qc4 43.Qh4 (43.Kf2–+) 43...Re6 44.Nfe3 Qe4 0–1. Puls,Georg – Lauer,Franz, corr DDR–ch M604, 1977.

    7.Nd2 Ne7 8.Ngf3 A) 8...b6 A1) 9.Be2 A11) 9...a5 10.cd5 (10.b5 0-0 11.0-0 cb5 12.cb5 a4 13.d4=) 10...cd5 11.b5 a4 12.Nb1 Nf5 13.d4=; A12) 9...0-0 10.0-0 (10.Rc1 Nd7 11.cd5 cd5 12.0-0 a5 13.Qb3=) 10...a5 11.b5 cb5 12.cb5 a4 13.d4=; A2) 9.Rc1 A21) 9...Nd7 10.cd5 (10.Be2 a5 11.cd5 cd5 12.b5 Rc8 13.Rc8+=) 10...cd5 11.Be2 0-0 12.Qb3 a5 13.0-0=; A22) 9...0-0 10.Be2 Nd7 11.cd5 cd5 12.Qb3 a5 13.0-0=; A3) 9.cd5 cd5 10.Be2 a5 A31) 11.b5 a4 (11...Qd7 12.a4 Ra7 13.Rc1=) 12.0-0= 12...0-0 13.d4=; A32) 11.ba5 Ra5 12.Qb3 Bd7 13.Bc3=; B) 8...a5 9.c5 Bc7 10.Be2 ab4 11.ab4 Ra1 12.Qa1= (12.Ba1 Nd7 13.0-0=) 12...Nd7 13.0-0=.

    7.cd5 cd5 A) 8.Nf3 a5 (8...Nc6 9.Nc3 Rc8 10.Rc1 Nh6 11.Qb3 Qd7=; 8...Ne7 9.Be2 0-0 10.Nc3 Nbc6 11.0-0 Rc8=; 8...Nd7 9.Nc3 Ne7 10.Be2 Rc8 11.Nb5 Bb8+=; 8...Nh6 9.Be2 0-0 10.0-0 a5 11.b5 Nd7=) 9.ba5 Qa5 10.Bc3 Qc7 11.d4 e4+=; B) 8.Be2 a5 (8...Ne7 9.Nf3 a5 10.b5 0-0 11.0-0 Qe8=; 8...Nc6 9.d4 ed4 10.ed4 Rc8 11.Nf3 Nh6=; 8...Nd7 9.Nc3 Rc8 10.d4 Ne7 11.de5 fe5=) 9.b5 Ne7 10.Nf3 0-0 11.0-0 Qe8=; C) 8.d4 e4 (8...Ne7 9.de5 Be5 10.Be5 fe5 11.Bb5 Bd7=; 8...Nc6 9.de5 fe5 10.b5 Nce7 11.Nf3 Bg4=) 9.Nc3 Nc6 10.Nb5 Bb8 11.Nc3 Nge7=.

    7.Be2 A) 7...a5 A1) 8.c5 Bc7 (8...Be7 9.Bg4 Bd7 10.d4 ed4 11.Qd4 ab4=) 9.Nf3 ab4 10.ab4 Ra1 11.Ba1 b5=; A2) 8.Bg4 f5 (8...Bf7 9.c5 Bc7 10.b5 cb5 11.Nc3 Na6=) 9.Bh5 g6 10.c5 Bc7 11.Be2 ab4=; B) 7...Ne7 8.c5 Bc7 9.Nf3 b6 10.d4 Nd7 11.de5 fe5=; C) 7...Nh6 8.c5 Bc7 9.Nf3 Nd7 10.0-0 Qb8 11.Nbd2 0-0=; D) 7...Nd7 D1) 8.Nf3 Ne7 (8...Qb6 9.Nc3 dc4 10.dc4 c5 11.Qd2 Bf8+=; 8...Nh6 9.0-0 0-0 10.Nc3 Nf7 11.Qb3 Re8=) 9.Nc3 0-0 10.c5 Bc7 11.Qc2 b6+=; D2) 8.c5 Bc7 9.Nf3 Ne7 10.Nbd2 b6 11.Qc2 0-0=; D3) 8.Nc3 a5 9.cd5 cd5 10.Nb5 Bb8 11.Nf3 Ne7=.

    7.Nf3 Ne7 8.c5 Bc7 9.Be2 b6 10.d4 Nd7 11.de5 fe5=.

    7.Qh5 g6 A) 8.Qf3 a5 9.c5 Be7 10.d4 e4 11.Qd1 ab4=; B) 8.Qh4 h5 (8...Nd7 9.Nf3 Ne7 10.e4 h5 11.Qg3 a5+=) 9.cd5 cd5 10.f4 Nd7 11.Nf3 ef4+=; C) 8.Qd1 Nd7 (8...Ne7 9.Nf3 Nd7 10.Be2 Qb6 11.d4 dc4=) 9.cd5 cd5 10.Nc3 Ne7 11.d4 e4=.

    7.Nc3 Ne7

    8.c5 Bc7 9.Nf3 0-0 10.Be2 a5 11.b5 b6 =.

    8.c5 Bc7 9.Qh5 g6 10.Qf3 =+.

    8.cd5 cd5 9.Nb5 0-0 10.Nf3 (10.d4 a5 11.Nd6 Qd6=) 10...a6 (10...a5 11.Nd6 Qd6=) 11.Nd6 Qd6 12.Be2 Nbc6 13.0-0 Rac8 14.Qd2 Qd7 15.Rfd1 Nd8 16.Rac1 Nf7 17.Rc5 Rc6 18.Rdc1 Rfc8 19.Bd1 Qd6 20.Rc6 Rc6 21.h3 Qc7 22.Rc6 Qc6 23.Qc2 Qc2 24.Bc2 Kf8 25.Nd2 Ke8 26.Nb3 b6 27.a4 Nd6 28.a5 ba5 29.ba5 Nb7 30.Bc3 Nc6 31.f3 (31.d4 e4+=) 31...f5 (better is 31...d4!? 32.ed4 Bb3 33.Bb3 ed4-/+ (33...Nd4?! 34.Bd5 Nc5 35.Bd4 ed4 36.Bc4=; 33...Nba5? 34.Ba4 Ke7 35.d5+–)) 32.d4= ed4 33.Nd4 Nd4 34.ed4 Nd6 35.g4 g6 36.Kf2 Nc4 37.Kg3 Kf7 38.Ba4 Bc8 39.Kf4 Ke6 40.Kg5 fg4 41.hg4 Bd7 42.Bd7 Kd7 43.f4 Ke6 44.Kh6 Ne3 45.Kh7 Kf7 (45...Kf6 46.g5 Kf5 47.Kg7=) 46.Kh6 (better is 46.f5!? g5 47.Kh6 Ng4 48.Kg5+/–) 46...Kf6 47.g5 Kf7 48.Kh7 Nf5 ½–½. Kuipers,Stefan – Bakker,Guido, NED–ch U14 Schagen, 2003.

    8.cd5 Nd5 9.Nd5 cd5 10.g3 a5 11.b5 a4 12.d4 e4 13.Ne2 Bg4 14.Qd2 Bf3 15.Rg1 Nd7 16.Bc3 Nb6 17.Nf4 g5 18.Ne6 Qe7 19.Nc5 0-0 20.Bb4 Bh5 21.Rb1 f5 22.h3 Bg6 23.Be2 Kh8 24.Ba5 Nc8 25.Bb4 f4 26.g4 (26.gf4 gf4 27.Bg4 Bf5=) 26...Rf6 (26...b6 27.Na6+=) 27.Bc3 (27.h4 gh4 28.Rh1 f3=) 27...Kg8 28.h4 gh4 29.g5 fe3 30.fe3 Rf8 31.Bg4 (31.Bb4!?+=) 31...Bg3-/+ (worse is 31...Bc5 32.dc5 Qc5 33.Rc1=) 32.Kd1 Nb6 33.Be6 (better is 33.Be2!?-/+) 33...Bf7–+ 34.Bf7 Rf7 (34...Kf7 35.Bb4 Nc4 36.Qe2 Qg5 37.Rf1 Kg6 38.Rf8 Ne3 39.Kd2 Nf5 40.Kc3 Rf8 41.Ne4–+) 35.Qe2 Nc4 (35...Qg5?! 36.Rc1–+) 36.Rg2 (36.Be1 Rf3 37.Bg3 hg3 38.Rb4 Ne3 39.Kc1–+) 36...b6 37.Na6 (37.Bb4 bc5 38.dc5 Raf8–+) 37...Qg5 (37...Qg5 38.Rg1 Qe3 39.Qe3 Ne3 40.Kc1 Rc8–+) 0–1. Valenta,Vit jr (2160) – Ruckschloss,K (2290), Tatranske Zruby SVK, Tatry Open, 2011.

    8.cd5 Nd5 9.Ne4 a5 10.d4 ed4 11.Nd6 Qd6 +=.

    8.Be2 0-0 (8...b6 9.Nf3 0-0 10.0-0 a6 11.Rc1 Nd7=) 9.Nf3 Nd7 10.0-0 a5 11.c5 Bc7 =.

    8.Nf3 0-0 (8...b6 9.cd5 cd5 10.Nb5 0-0 11.d4 e4=; 8...Nf5 9.Be2 0-0 10.0-0 Re8 11.Re1 b6=) 9.Be2 Nd7 10.0-0 a5 11.c5 Bb8 =.

    5.d3 Qd7

    6.Nd2 c6 7.c4 a5 8.c5 ab4 (8...Nh6 9.Qa4 Be7 10.Nb3 0-0 11.Nf3 Bd8 12.d4 e4=; 8...Qd8 9.d4 ab4 10.ab4 Ra1 11.Qa1 b6 12.cb6 ed4=) 9.ab4 Ra1 10.Ba1 b6 11.d4 Qc7 12.de5 bc5=.

    6.Nd2 c6 7.c4 Bd6 8.Be2 (8.cd5 cd5 (8...Bd5 9.Nc4 Bc7 10.e4 Be6 11.d4 ed4 12.Bd4 b5=) 9.d4 e4 10.f3 f5 11.Nb3 b6 12.Rc1 Nf6=; 8.d4 e4 (8...Nh6 9.e4 ed4 10.Bd4 0-0 11.Ngf3 a5 12.Bd3 ab4=) 9.cd5 cd5 10.Rc1 Ne7 11.Qh5 Bf7 12.Qe2 0-0=; 8.Ngf3 Ne7 (8...a5 9.c5 Bc7 10.Be2 Ne7 11.ba5 Ba5 12.0-0 0-0=; 8...b6 9.Rc1 Nh6 10.c5 Be7 11.Be2 a5 12.0-0 ab4=) 9.e4 d4 10.c5 Bc7 11.Be2 b5 12.cb6 ab6+=) 8...Ne7 (8...a5 9.c5 Bc7 10.d4 Ne7 11.de5 fe5 12.Bh5 Bf7=; 8...Nh6 9.Ngf3 0-0 10.0-0 Qf7 11.Qc2 Nd7 12.c5 Bc7=) 9.Ngf3 (9.c5 Bc7 10.Ngf3 b6 11.0-0 0-0 12.Qc2 Ng6=) 9...0-0 10.Qc2 (10.0-0 Ng6 (10...b5= 11.c5 Bc7 12.a4 Ng6=) 11.c5 Be7 12.d4 e4=; 10.c5 Bc7 11.0-0 Qe8 12.Qb3 Qg6=) 10...a5 (10...b5 11.c5 Bc7 12.0-0= a5=) 11.ba5 (11.c5 Bc7= 12.0-0 ab4=) 11...Ra5 12.0-0 (12.Nb3 Ra7=) 12...Ra8 (12...b5 13.c5 Bc7 14.a4=) 13.Rfd1 (13.c5 Bc7=) 13...Na6 14.d4 e4 15.Ne1 f5 (15...Bg4 16.Bg4 Qg4 17.c5+=) 16.f3 (16.c5 Bc7=) 16...Rf7 (16...f4 17.fe4 fe3 18.Nf1=) 17.Nf1 (17.c5 Bb8=) 17...Raf8 (17...dc4 18.Bc4 Bc4 19.Qc4-/+) 18.Rab1 (18.c5 Bc7=) 18...Bb8 (18...dc4 19.Bc4 Bc4 20.Qc4-/+) 19.Bc3 (19.cd5 Bd5 20.Nd2 ef3 21.Nef3 Qe6+=) 19...f4 (19...dc4 20.Nd2 b5 21.fe4 fe4 22.Ne4–+) 20.fe4 (20.cd5 Nd5 21.fe4 Ne3 22.Ne3 fe3=) 20...de4 21.d5 (better is 21.ef4!? Bf4 22.Bb2+=) 21...cd5–+ 22.cd5 Bh3?? (22...Nd5 23.ef4 Rc8–+ (23...Rf4?! 24.Bd4–+; 23...Bf4?! 24.Bd4–+)) 23.Ba6 (23.d6 Bd6 24.gh3 Qc6+/–) 23...f3 24.Bc4 (24.Rb7 f2 25.Qf2 Rf2 26.Rd7 Bd7 27.Bb4+/–) 24...Bd6?? (better is 24...f2 25.Kh1 fe1N 26.Re1 Qd6+=) 25.Kh1?? (better is 25.gh3 f2 26.Kg2+–) 25...fg2–+ 26.Ng2 Rf2 27.Qe4? (27.Rd2 Bg2 28.Kg1 Bf1 29.Rf2 Rf2 30.Qf2 Bc4 31.Qg2 Nd5 32.Qe4–+) 27...Bg2 (27...Rg2 28.Bd3 Rg6 29.Ng3 Bg3 30.hg3-/+) 28.Qg2 Rg2 29.Kg2 Qg4 30.Kh1 (30.Ng3 Qc4 31.Bd4 Qc2 32.Rd2 Qd2 33.Kh3–+) 30...Qc4 (30...Qc4 31.Be5 Be5–+; 30...Rf2 31.Ng3 Qf3 32.Kg1 Qg2) 0–1. Dimitrijevic,Aleksandra (2290) – Socko,Bartosz (2575), 3rd ACP Blitz Prelim5, playchess.com IN (11), 2004.

    6.Nd2 c6 7.d4 A) 7...ed4 A1) 8.Bd4 a5 (8...Nh6 9.Nb3 Nf5 10.Nf3 Bd6 11.Bd3 b6 12.0-0 0-0=) 9.c3 Bd6 10.Bd3 Ne7 11.Ngf3 Nf5 12.0-0 ab4=; A2) 8.ed4 Bf5 (8...Qe7 9.Be2 a5 10.ba5 Ra5 11.Ngf3 b6 12.0-0 Qa7+=; 8...Bd6 9.Bd3 Qe7 10.Ne2 f5 11.0-0 Nf6 12.c4 0-0=) 9.Ngf3 Bd6 10.Be2 Ne7 11.0-0 0-0 12.Re1 b5=; B) 7...a5 8.de5 ab4 9.ef6 Nf6 10.Bf6 gf6 11.ab4 Ra1 12.Qa1 Bb4+=; C) 7...e4 8.c4 Bd6 (8...Nh6 9.cd5 cd5 10.Qh5 Nf7 11.Be2 Bd6 12.Rc1 Nc6=) 9.Rc1 Ne7 10.cd5 Bd5 11.Qc2 f5 12.Nc4 Bc4=.

    6.Nd2 c6 7.Be2 a5 8.ba5 Bd6 (8...Ra5 9.d4 ed4 10.Nb3 Ra8 11.Nd4 b5 12.Ngf3 Bd6=) 9.Nb3 c5 10.c4 Ne7 11.cd5 Nd5 12.Rc1 Na6=.

    6.Nd2 c6 7.Ngf3 A) 7...Nh6 A1) 8.c4 Be7 (8...Nf7 9.Be2 a5 10.ba5 Ra5 11.Nb3 Ra6 12.0-0 dc4=; 8...dc4 9.dc4 c5 10.b5 Be7 11.Qc2 Bf5 12.e4 Be6+=) 9.Be2 a5 10.c5 ab4 11.ab4 Ra1 12.Qa1 Na6=; A2) 8.Be2 a5 9.ba5 Ra5 10.0-0 Bd6 11.c4 b5 12.a4 dc4=; B) 7...Be7 B1) 8.Be2 Nh6 (8...a5 9.ba5 Ra5 10.0-0 Nh6 11.c4 b6 12.cd5 cd5=; 8...b6 9.c4 a5 10.ba5 Ra5 11.cd5 cd5 12.0-0 Nh6=) 9.c4 0-0 10.0-0 a5 11.ba5 Ra5 12.Nb3 Ra6=; B2) 8.c4 Nh6 (8...a5 9.ba5 Nh6 10.Rb1 Ra5 11.Nb3 Ra7 12.c5 0-0=; 8...b5 9.cb5 cb5 10.Nb3 Nh6 11.d4 e4 12.Nfd2 Na6+=) 9.Be2 0-0 10.0-0 a5 11.ba5 Ra5 12.Nb3 Ra6=; B3) 8.Nb3 Nh6 (8...Na6 9.Be2 Bd6 10.0-0 0-0-0 11.d4 e4 12.Nfd2 Nc7+=; 8...Bd6 9.Be2 Ne7 10.0-0 0-0 11.c4 b6 12.Qc2 Ng6=) 9.Be2 0-0 10.0-0 Na6 11.d4 e4 12.Nfd2 Bg4=; C) 7...a5 8.ba5 Ra5 9.c4 dc4 10.Nc4 Ra7 11.Ncd2 c5 12.Be2 Nc6=.

    6.d4 e4=+.

    6.Nd2 a5

    7.ba5 Ra5 8.d4 ed4 9.ed4 Bd6 10.Bd3 Ne7 11.Ngf3 0-0 12.0-0 Bg4 13.c4 c6 14.Qc2 Bf5 15.Rfe1 Bd3 16.Qd3 Ng6 17.Qe3 Kf7 18.Nb3 Ra4 19.cd5 cd5 20.Nc5 Bc5 21.dc5 Re4 22.Qb3 Rfe8 23.Re4 Re4 24.Rd1 The isolani on d5 becomes a target 24...Ne7 25.h3 Nbc6 26.Qd3 Qe6 27.Bc3 g6 28.Qd2 Kg7? (better is 28...Rc4+=) 29.Ng5+– Qf5 30.Ne4 de4 31.Qb2 Qc5 32.Bf6 (32.Qb7 Qc3 33.a4 f5-/+) 32...Kf7 33.Be7 Ne7 34.Qb7 Qc2 (34...Qa3 35.Qe4 h5+–) 35.Re1 1–0. Vojinov,Danijel (1725) – Veljkovic,Bratislav (1970), SLO–chT2 West, 2008.

    7.c3 Bd6

    8.Nb3 A) 8...a4 9.Nd2 (9.Nc5 Bc5 10.bc5 Qb5 11.Rb1 Qc5 12.d4 Qd6+=) A1) 9...Ne7 10.c4 A11) 10...Ng6 11.Ngf3 (11.Be2 Nh4= 12.Bh5 g6+=) 11...0-0 12.Be2 dc4=; A12) 10...b6 11.Rc1 c6 12.cd5 cd5=; A2) 9...Nh6 10.c4 0-0 11.c5 Be7 12.Ngf3 Nc6=; B) 8...ab4 9.cb4 (9.ab4 Ra1 10.Qa1 b6 11.Qa7 Nc6+= 12.Qa4 Nce7+=) 9...Ne7 10.d4 Bg4 11.Be2 Be2 12.Ne2 0-0+=.

    8.Be2 Ne7 A) 9.Ngf3 b5 (9...b6 10.0-0 0-0 11.Qc2 Qc6 12.Qb3 a4=; 9...Qc6 10.0-0 0-0 11.Qb3 a4 12.Qc2 Nd7=; 9...0-0 10.0-0 ab4 11.ab4 Ra1 12.Qa1 Na6+=) 10.0-0 0-0 11.Qc2 Na6 12.e4 ab4+=; B) 9.Bh5 B1) 9...g6 10.Be2 0-0 11.Ngf3 ab4+= (11...b6 12.0-0 ab4=) 12.ab4 Ra1+=; B2) 9...Ng6 10.Ngf3 Bf7 11.0-0 0-0 12.Bg6 Bg6+=.

    8.Ngf3 Ne7 9.Be2 0-0 10.0-0 A) 10...b6 11.Qc2 (11.Nb3 ab4 12.cb4 Qa4 13.Nbd2 Qd1+= ) 11...Qc6 12.Qb3 a4=; B) 10...Qc6 B1) 11.Nb3 B11) 11...a4 12.Nbd2 (12.Na5 Qb6 13.Qc2 c5= ) 12...Nd7=; B12) 11...ab4 12.ab4 Ra1+=; B2) 11.Qb3 Nd7 12.c4 dc4=; C) 10...Rc8 C1) 11.Qc2 Na6 (11...Qc6 12.Nb3 ab4=) 12.Rfb1 (12.e4 ab4 13.ab4 c5+=) 12...ab4= ; C2) 11.e4 ab4+= 12.ab4 Ra1 13.Qa1 Ng6= ; C3) 11.Re1 ab4 12.ab4 Ra1=; D) 10...Ng6 D1) 11.Rc1 ab4 (11...b5 12.Qc2 ab4+=) 12.cb4 Na6 13.d4 e4+=; D2) 11.Nb3 a4 12.Nbd2 b5=; E) 10...ab4 11.ab4 Ra1 12.Qa1 Na6 13.d4 e4=.

    8.Ngf3 Ne7 9.Be2 ab4 10.ab4 Ra1 11.Ba1 0-0 12.0-0 Na6+=.

    8.Ngf3 Ne7 9.Be2 b5 10.0-0 0-0 (10...ab4 11.ab4 Ra1 12.Qa1 0-0 13.Qa5 Qc6=) 11.Nb3 (11.Qc2 Na6 12.e4 ab4+=) 11...a4 12.Nbd2 (12.Nc5 Bc5 13.bc5 Na6+=) 12...Na6+=.

    8.Ngf3 Ne7 9.Be2 b6 A) 10.Qc2 A1) 10...Qc6 A11) 11.Nb3 A111) 11...0-0 12.0-0 (12.ba5 ba5 13.0-0 a4+= ) 12...Na6=; A112) 11...ab4 12.ab4 Ra1+=; A12) 11.Qb3 0-0 12.0-0 a4=; A2) 10...ab4 A21) 11.cb4 Na6 12.Nb3 (12.0-0 0-0+= ) 12...0-0 13.0-0 Rfc8+=; A22) 11.ab4 Ra1 12.Ba1 c5=; B) 10.e4 B1) 10...0-0 11.d4 ab4 (11...b5 12.0-0 c6 13.ba5 Ra5=) 12.cb4 Nbc6+=; B2) 10...b5 11.d4 0-0 12.0-0 c6 13.ba5 Ra5=; B3) 10...Qc6 11.d4 de4 12.de5 Be5 13.Ne5 fe5= ; B4) 10...ab4 11.ab4 Ra1 12.Qa1 0-0 13.0-0 Ng6+= ; C) 10.Nb3 ab4 (10...a4 11.Nbd2 0-0 12.0-0 c5 13.bc5 bc5=; 10...0-0 11.ba5 ba5 12.Rb1 Na6+= ) 11.ab4 Ra1 12.Ba1 (12.Na1 0-0 13.0-0 c5+= ) 12...0-0+=; D) 10.0-0 0-0 11.e4 (11.Qc2 Qc6 12.Nb3 Ng6+= ) 11...Qc6 12.ed5 Nd5 13.c4 Nf4=.

    8.Ngf3 Ne7 9.Be2 Qc6 A) 10.Nb3 ab4 11.cb4 0-0 12.0-0 (12.Rc1 Qb6+=) 12...Qb6 13.Qc2 Nd7=; B) 10.Qb3 B1) 10...a4 11.Qd1 0-0 12.c4 Ng6 13.cd5 Bd5=; B2) 10...0-0 11.0-0 Nd7 (11...a4 12.Qc2 Nd7= ) 12.c4 dc4 13.dc4 ab4=; B3) 10...b5 11.0-0 B31) 11...a4 12.Qc2 (12.Qd1 Nd7=) 12...0-0 13.Rac1 Nd7=; B32) 11...Na6 12.Rfc1 0-0+=; C) 10.Rc1 Nd7 (10...0-0 11.Nb3 ab4 12.cb4 Qb6 13.Nc5 Bc5+=; 10...Qd7 11.Nb3 ab4 12.cb4 0-0 13.0-0 b6=) 11.Nb3 ab4 12.cb4 Qa4 13.0-0 b6+=; D) 10.0-0 0-0 D1) 11.Nb3 D11) 11...b6 12.ba5 (12.Rc1 Qa4=) 12...ba5 13.Rb1 a4=; D12) 11...a4 12.Na5 Qb6=; D2) 11.Qb3 Nd7 12.c4 dc4=.

    8.Ngf3 Nh6 9.Be2 Nf7 (9...Qc6 10.0-0 0-0 11.e4 ab4 12.ab4 Ra1=; 9...b6 10.e4 0-0 11.d4 ab4 12.cb4 Nf7=; 9...b5 10.0-0 0-0 11.Qc2 Na6 12.e4 ab4=; 9...0-0 10.0-0 ab4 11.ab4 Ra1 12.Qa1 Na6=; 9...Ra7 10.0-0 0-0 11.Nb3 a4 12.Nbd2 b5=; 9...Ng4 10.0-0 0-0 11.Qc2 Qc6 12.Rfc1 Nd7=) 10.0-0 0-0 11.Nb3 ab4 12.ab4 Ra1+=.

    7.c3 Nh6

    8.Be2 A) 8...Bd6 9.Ngf3 A1) 9...b5 10.0-0 0-0 11.Qc2 ab4 12.ab4 Nc6 13.Nb3=; A2) 9...Qc6 10.0-0 (10.Nb3 ab4 11.cb4 0-0 12.Rc1 Qb6 13.Nc5=; 10.Qb3 0-0 11.0-0 b5 12.c4 Na6 13.ba5=; 10.Rc1 0-0 11.Nb3 ab4 12.cb4 Qb6 13.Qc2=) 10...0-0 11.e4 ab4 12.ab4 Ra1 13.Qa1=; A3) 9...b6 10.e4 (10.Qc2 ab4 11.cb4 0-0 12.0-0 Na6 13.Nb3+=; 10.0-0 0-0 11.Qb3 Na6 12.Qc2 ab4 13.ab4+=; 10.Nb3 ab4 11.ab4 Ra1 12.Na1 0-0 13.Qc2+=) 10...0-0 11.d4 ab4 12.cb4 Nf7 13.0-0=; A4) 9...0-0 10.0-0 ab4 11.ab4 Ra1+= 12.Qa1 Na6 13.e4=; A5) 9...Nf7 10.0-0 0-0 11.Nb3 ab4 12.ab4 Ra1 13.Qa1+=; B) 8...Be7 9.Ngf3 B1) 9...Bd6 10.0-0 0-0 11.e4 Ng4 12.h3 Nh6 13.d4=; B2) 9...b6 10.Qc2 (10.0-0 0-0 11.e4 Nf7 12.Re1 c6 13.Qa4+=; 10.Nb3 ab4 11.cb4 0-0 12.0-0 Na6 13.Qc2+=) 10...Bd6 11.e4 ab4 12.ab4 Ra1 13.Ba1=; B3) 9...b5 10.0-0 (10.ba5 Ra5 11.c4 c6 12.a4 ba4 13.Ra4=) 10...0-0 11.ba5 Ra5 12.c4 c6 13.a4=; B4) 9...Qc6 10.Nb3 ab4 11.ab4 Ra1 12.Qa1 0-0 13.0-0=; B5) 9...Nf7 10.0-0 0-0 11.Qc2 Na6 12.Rfb1 ab4 13.ab4=; B6) 9...Ng4 10.Nb3 (10.0-0 0-0 11.Re1 b5 12.h3 Nh6 13.Qc2=; 10.h3 Nh6 11.0-0 0-0 12.e4 Nf7 13.d4=) 10...a4 11.Nbd2 0-0 12.0-0 c5 13.h3=; B7) 9...0-0 10.0-0 b6 11.e4 Nf7 12.Re1 c6 13.ed5+=.

    8.Ngf3 Bd6 A) 9.Qc2 A1) 9...Qc6 A11) 10.Rc1 0-0 (10...Nd7 11.Be2 0-0 12.0-0 b5 13.Nb3 ab4+=; 10...b5 11.ba5 Nd7 12.c4 0-0 13.cd5 Qd5=; 10...ab4 11.cb4 Qc2 12.Rc2 0-0 13.Be2 Nd7=; 10...Nf7 11.Nb3 ab4 12.cb4 Qc2 13.Rc2 0-0+=; 10...Ng4 11.Be2 0-0 12.h3 Nh6 13.Nb3 ab4+=) 11.Nb3 ab4 12.cb4 Qc2 13.Rc2 b6+=; A12) 10.Nb3 ab4 11.ab4 Ra1 12.Ba1 Bb4 13.Qb2 Be7-/+; A13) 10.Qb3 ab4 (10...a4 11.Qc2 Nd7 12.c4 0-0 13.Rc1 Bf7=) 11.ab4 Ra1 12.Ba1 Nd7 13.c4 b5+=; A2) 9...ab4 10.cb4 (10.ab4 Ra1 11.Ba1 0-0 12.Be2 Na6 13.0-0 Ra8+=) 10...0-0 11.Be2 Rc8 12.Nb3 Qa4 13.Rc1 b6+=; A3) 9...0-0 10.Be2 Qc6 (10...ab4 11.ab4 Ra1 12.Ba1 Qc6 13.Qb3 Nd7+=) 11.Qb3 b5 12.c4 ab4 13.ab4 Ra1+=; B) 9.Be2 0-0 10.0-0 Nf7 (10...Qc6 11.e4 ab4 12.ab4 Ra1 13.Qa1 de4=; 10...b6 11.e4 c6 12.d4 Nf7 13.ba5 Ra5=; 10...ab4 11.ab4 Ra1+= 12.Qa1 Na6 13.e4 c5=) 11.e4 c6 12.Re1 b5 13.d4 Re8=.

    8.Qh5 Nf7 A) 9.Ngf3 ab4 (9...g6 10.Qh4 g5 11.Qg3 Bd6 12.Ng1 h5 13.Qf3+=; 9...Bg4 10.Qh4 g5 11.Qg3 e4 12.de4 h5 13.h3+/–; 9...Bd6 10.Be2 0-0 11.e4 ab4 12.ab4 Ra1 13.Ba1+=) 10.cb4 g6 11.Qh4 g5 12.Qg3 h5 13.h3+=; B) 9.Rc1 B1) 9...Be7 10.Ngf3 (10.Be2 0-0 11.h3 f5 12.Nb3 e4 13.Bf1-/+) 10...g6 11.Qh4 Nd6 12.e4 ab4 13.cb4+=; B2) 9...Bd6 10.Be2 ab4 11.cb4 0-0 12.Nb3 Na6 13.d4+=; B3) 9...b5 10.Be2 (10.Ngf3 Be7 11.Nb3 ab4 12.cb4 d4 13.Nfd2+=) 10...Be7 11.Nb3 ab4 12.cb4 d4 13.Nc5+=; B4) 9...d4 10.Ngf3 (10.Be2 dc3 11.Bc3 ab4 12.ab4 Nc6 13.Qf3-/+) 10...dc3 11.Bc3 ab4 12.ab4 Ra4 13.d4+=; B5) 9...Bg4 10.Qh4 Na6 11.h3 Be6 12.Ngf3 ab4 13.ab4+=; C) 9.h3 ab4 10.cb4 (10.ab4 Ra1 11.Ba1 Bd6 12.Bb2 Na6 13.Ne2-/+) 10...Be7 11.Rc1 Na6 12.d4 0-0 13.Be2+=; D) 9.Be2 ab4 10.cb4 Be7 (10...Bd6 11.Ngf3 g6 12.Qh4 Be7 13.0-0+=) 11.d4 (11.Rc1 Na6 12.d4 0-0 13.Nb3+=) 11...0-0+= 12.Nb3 Qa4 13.Bd1+=.

    8.Ngf3 b6

    9.e4 A) 9...Bd6 10.d4 0-0 (10...ed4 11.Nd4 ab4 12.Ne6 Qe6 13.Qh5 Nf7 14.cb4=) 11.ed5 (11.c4 ed4 12.cd5 Bd5 13.Bd3 Bf7 14.ba5=) 11...Bd5 12.de5 Qe6 13.c4 Bb7 14.c5=; B) 9...ab4 10.ab4 Ra1 11.Qa1 (11.Ba1 Be7 12.Be2 0-0 13.0-0 Nf7 14.Qc2=) 11...Bd6= 12.d4 ed4 13.Nd4 0-0 14.Be2=; C) 9...Nf7 10.d4 de4 (10...ab4 11.cb4 de4 12.Ne4 Bd5 13.Nc3 Bb7 14.de5+=) 11.Ne4 Bd5 12.Qe2 ab4 13.cb4 Qg4 14.Ng3=.

    9.Be2 Bd6

    10.0-0 0-0 11.Qc2 Qc6+= 12.Qb3 a4 13.Qc2 Nf7 (13...b5 14.c4 Nd7 15.Rac1 Nf7 16.e4 de4+/–; 13...Nd7 14.c4 b5 15.Rac1 Ng4 16.cd5 Qc2+=; 13...Ng4 14.c4 b5 15.Rac1 Nd7 16.cd5 Qc2+=; 13...Rd8 14.c4 b5 15.Rac1 Nd7 16.e4 d4+=; 13...Re8 14.c4 b5 15.Rac1 Nd7 16.cd5 Qc2+=) 14.c4 b5 15.Rac1 Ra7 16.cd5 Qc2+=.

    10.0-0 0-0 11.Qc2 Qc6+= 12.Nb3 a4 13.Nbd2 Nf7 (13...Nd7 14.c4 b5 15.Rac1 Nf7 16.e4 de4+/–; 13...Ng4 14.c4 b5 15.Rac1 Nd7 16.cd5 Qc2+=; 13...Rd8 14.c4 b5 15.Rac1 Nd7 16.e4 d4+=; 13...b5 14.c4 Nd7 15.Rac1 Rfd8 16.e4 d4+=; 13...Re8 14.c4 b5 15.Rac1 Nd7 16.cd5 Qc2+=; 13...Rf7 14.c4 b5 15.Rac1 Nd7 16.e4 d4+=) 14.c4 b5 15.Rac1 Na6 16.Nb1 Rfb8+=.

    10.0-0 0-0 11.Qc2 Qc6+= 12.Rfc1 A) 12...Ra7 A1) 13.Nb3 Nf7 (13...ab4 14.ab4 Ra1 15.Ra1 Nf5 16.d4 e4=; 13...Re8 14.ba5 ba5 15.c4 dc4 16.dc4 a4=; 13...Rd8 14.ba5 ba5 15.Rab1 a4 16.Nbd2 Rb7=) 14.ba5 ba5 15.Rab1 Qa4 16.Nbd2 Qc2=; A2) 13.e4 ab4 14.cb4 Qc2 15.Rc2 d4 16.Nc4 Nf7=; A3) 13.Qb3 Nf7 (13...Qd7 14.c4 c6 15.ba5 ba5 16.Qa4 Na6=; 13...Rd8 14.c4 dc4 15.dc4 Nf7 16.b5 Qd7=) 14.c4 dc4 15.dc4 Rd8 16.Rd1 ab4=; B) 12...Rf7 13.Nb3 ab4 14.ab4 Ra1 15.Ra1 Nf5 16.Ra7 Ne7=; C) 12...Nf7 C1) 13.Nb3 ab4 (13...Ra7 14.ba5 ba5 15.c4 a4 16.Nbd2 Rb7=) 14.cb4 Qa4 15.Nbd2 Qc2 16.Rc2 c5+=; C2) 13.Qb3 Ra7 (13...Rd8 14.c4 dc4 15.dc4 Qd7 16.Ne4 Qe7=) 14.c4 dc4 15.dc4 Rd8 16.Rd1 Bf5=; C3) 13.a4 ab4 14.cb4 Qc2 15.Rc2 Na6 16.b5 Nc5-/+; C4) 13.e4 Nd7 14.c4 de4 15.b5 Qb7 16.Ne4 Bf5+=; D) 12...Re8 13.e4 (13.a4 ab4 14.cb4 Qc2 15.Rc2 Na6 16.b5 Nc5+=) 13...ab4 14.cb4 Qc2 15.Rc2 Nd7 16.d4 Nf7=; E) 12...ab4 13.cb4 Qc2 14.Rc2 Rc8 15.Rac1 c5 16.bc5 bc5=; F) 12...Rd8 13.a4 ab4 (13...Qe8 14.b5 c6 15.c4 Qg6 16.cd5 cd5=) 14.cb4 Qc2 15.Rc2 Ra7 16.Bc3 Na6=.

    10.0-0 0-0 11.Qc2 Nf7 12.Rfd1 c6 13.Nb3 a4 14.Nbd2 c5 15.Nf1 (15.bc5 bc5 16.c4 d4=) 15...f5 (15...Na6 16.bc5 Nc5 17.Rab1+=) 16.Qd2 (16.bc5 bc5 17.c4 d4=) 16...Nc6 17.Rac1 Qe7 18.Ne1 Ra7 19.g3 (19.d4 ed4 (worse is 19...cb4 20.cb4 Rc7 21.Bb5+=) 20.cd4 c4+=) 19...Ng5 (19...f4!?-/+) 20.f4+= ef4 (worse is 20...cb4 21.cb4 (worse is 21.fg5 Na5+=) 21...Nb4 22.fg5+– (worse is 22.ab4 Bb4 23.Qc2 ef4 24.gf4 Nf7+/–)) 21.ef4 Nf7 22.Bf3 Qd7 23.Nc2 h6 24.Qg2 Ne7 25.Nce3 Bb8 26.Re1 g5 27.Nd5 (27.bc5!? bc5 28.c4=) 27...Bd5 (27...Nd5 28.Re6 Nf4 (28...Qe6?! 29.Bd5 Qg6 30.fg5=) 29.gf4 Qe6 30.fg5 hg5-/+ (30...Ng5?? 31.Bd5 Rg7 32.Kh1+–)) 28.Re7+= Qe7 29.Bd5 gf4 30.c4 Kh7 31.g4? (better is 31.bc5!? bc5 32.d4-/+) 31...Be5 32.Rc2 Bb2 33.Rb2 Rg8 (33...fg4!? 34.Re2 Ne5 35.Qe4 Ng6 36.Qg2–+) 34.h3 Qh4 (34...fg4!? 35.hg4 h5 36.Be4 Kh8 37.Qh3 Rg4 38.Kf2–+) 35.bc5-/+ bc5 (35...fg4 36.cb6 Re7 37.b7+/–) 36.Rb6 (better is 36.Rf2 Qg5 37.Nh2-/+) 36...h5?? (better is 36...Re7 37.Nh2 Qe1 38.Nf1 Rg7–+) 37.Be6= fg4?? (better is 37...hg4 38.Bf5 Kh8 39.Qb2 Rg7 40.Rb8 Nd8=) 38.Bf7 (38.Qe4 Kh8 39.Bf7 gh3 40.Bg8 Rg7 41.Rg6 Rg8 42.Qe5 Kh7 43.Rg8 Kg8 44.Qe8 Kg7 45.Qd7 Kg6 46.Qd6 Kg7 47.Qc7 Kg6 48.Qc6 Kg7 49.Qc5 Qg4 50.Kf2 Qg2 51.Ke1 h2 52.Qe5 Kg6 53.Qe6 Kg7 54.Qe7 Kg6 55.Qd6 Kg7 56.Qc7 Kg6 57.Qb6 Kf5 58.Qa5 Kg4 59.Nh2 Qh2 60.Qa4 Qg3 61.Kd2 Qe3 62.Kc3 h4+=) 38...Rf7? (better is 38...f3 39.Bg8 Kg8+/–) 39.Qe4+– Kg7 40.Qg6 (better is 40.Rg6 Kh7 41.Rg5 Kh6 42.Rg8+–) 40...Kh8+/– 41.Qf7 gh3 42.Kh1 Qg5 43.Qf6 Qf6 44.Rf6 Rd8 45.Ra6 (45.Rf4 Rd3 46.Rf5 Ra3 47.Rc5=) 45...Rd3+= 46.Ra4 Rd1 47.Kg1 (47.Ra5 Rf1 48.Kh2-/+) 47...h2 (47...f3 48.Ra8 Kg7 49.Ra7 Kg6–+) 48.Kh2= Rf1 49.Kg2 Rd1 (better is 49...Rc1 50.Kf3 Rc3 51.Kf4 h4+=) 50.Kf3?? (better is 50.Ra5=) 50...Rd4-/+ 51.Ra7 Rc4 52.a4 Kg8 53.a5 Ra4 54.a6 h4 55.Kg4 Kf8 56.Kh4 Ke8 57.Kg4 Kd8 58.Kf3 Kc8 59.Kg4 c4 60.Kf4 c3 61.Ke3 Rc4 62.Kd3?? (better is 62.Ra8 Kc7 63.a7=) 62...c2–+ 63.Kc4 (63.Ra8 Kd7 64.a7 Rc3 65.Ke2–+) 63...c1Q 64.Kd4 Qd2 65.Ke5 Qc3 66.Kd5 Qb3 67.Ke5 Qb8 68.Kd4 Qa7 (68...Qa7 69.Kd5 Qa6–+) 0–1. Szewczak,Andrzej – Przedmojski,Rafal (2320), Warszawa Entropia–ch, 1996.

    10.e4 0-0 A) 11.0-0 A1) 11...c6 12.d4 Nf7 13.ba5 Ra5 14.c4 Rd8 15.Qb3=; A2) 11...Ng4 12.h3 Nh6 13.d4 ab4 14.cb4 Nf7 15.Re1=; A3) 11...Nf7 12.d4 ab4 13.ab4 Ra1 14.Qa1 c6 15.Qb1=; A4) 11...Qc6 12.ed5 Qd5 13.d4 Qb7 14.Bd3 Nd7 15.Re1+=; A5) 11...b5 12.ed5 (12.Re1 Ng4 13.ed5 Bd5 14.c4 Bb7 15.c5=; 12.d4 c6 13.ba5 Ra5 14.a4 ba4 15.Ra4=; 12.Qc2 c6 13.d4 ed4 14.Nd4 Rd8 15.Bd3+=) 12...Bd5 13.c4 Bb7 14.ba5 Nf7 15.cb5+=; A6) 11...ab4= 12.ab4 Ra1 13.Qa1 Nf7 14.d4 c6 15.Qb1=; B) 11.d4 B1) 11...ab4 12.cb4 (12.ab4 Ra1 13.Qa1 ed4 14.Nd4 Bf4 15.Bc1=) 12...Nf7 13.0-0 b5 14.Qc2 Na6 15.Bd3+=; B2) 11...Nf7 12.0-0 (12.de5 fe5 13.ed5 Bd5 14.Bd3 Qg4 15.h3=) 12...ab4 13.cb4 Nc6 14.Bb5 de4 15.Ne4+/–; B3) 11...Nc6 12.b5 Ne7 13.c4 dc4 14.Qa4 Rad8 15.de5+=; B4) 11...c6 12.0-0 Nf7 13.ba5 Ra5 14.c4 Rd8 15.Qb3=.

    5.d3 Nd7

    6.Nd2 c5 7.bc5= Bc5 8.Ngf3 (8.d4 Bd6= 9.Bb5 Qa5 10.Bd7 Kd7 11.de5 fe5 12.Ngf3 Qc7 13.c4 dc4+=) 8...Bd6 9.c4 Ne7 (9...Qa5 10.cd5 Bd5 11.Be2= Ne7 12.0-0 0-0 13.e4 Be6=) 10.cd5= Bd5 11.Be2 (11.e4 Qb6 (11...Bf7 12.d4 ed4 13.Bc4 Bc4=) 12.Rb1 Ba2= 13.Nc4 Bc4=) 11...0-0 12.0-0 (12.e4 Be6= 13.d4 Qa5=) 12...Rc8 (12...Qb6 13.Rb1 Qc7 14.Ne4=) 13.Rc1 (13.e4 Be6= (13...Bf7=)) 13...Nb6 (13...Rc1 14.Qc1 f5 15.e4=; 13...Qb6=) 14.Ne4 (14.e4 Bf7=) 14...Be4 (14...Nc6!?+=) 15.de4+= Qd7 16.Qb3 Kh8 17.Bb5 Qg4 18.a4 (18.Rc8!? Nec8 19.Bd3+=) 18...Qe4+= 19.a5 Qd5 20.Qd3 (20.Qd5 Nbd5 (worse is 20...Ned5 21.ab6 Nb6 22.Rfd1 Rc1 23.Bc1+/–) 21.Rfd1 Rc1 22.Rc1 b6+=) 20...Qd3-/+ 21.Bd3 Na4 22.Ba1 Nc5 23.Bc4 Nc6 24.Rfd1 (24.Bc3 Rfd8-/+) 24...Be7 (better is 24...Na5!? 25.Bd5 Rfd8–+) 25.Bc3-/+ Rfd8 26.Rd8 Bd8 (26...Rd8 27.Kf1-/+) 27.Ra1 Be7 (27...Bc7 28.Nd2-/+) 28.g4 (28.Bd5 Bd6-/+) 28...Rd8 29.Rb1 g6 30.h4 (30.h3 h6-/+) 30...Kg7 31.g5 Ne4 32.gf6 (32.Be1 fg5 33.Rb7 Nd6-/+ (worse is 33...gh4 34.Rc7+/–)) 32...Kf6 33.Ba1 (better is 33.Be1 Rd7 34.Kf1-/+) 33...Nd6 (33...Nd2 34.Nd2 Rd2 35.Bf1 Na5 36.Bc3-/+) 34.Ba2 (34.Bd5!? Kf5 35.Bc6 bc6 36.Be5+=) 34...Kf5-/+ 35.Kg2 (35.a6 e4 36.ab7 ef3-/+) 35...Rd7 (better is 35...Bf6!? 36.Rc1 Na5 37.Bb1 e4 38.Rc5 Ke6 39.Be4 Ne4 40.Ra5 Ba1 41.Ra1 a6-/+) 36.Rd1 Rd8 37.Rh1 (better is 37.Rb1=) 37...Bf6-/+ 38.Ng5 (38.Rc1 Na5 39.Ne5 Be5 (39...Bh4 40.Nf3 Kg4 41.Be6 Nf5 42.Rh1+–) 40.Be5 Ke5 41.Rc5 Kf6 42.Ra5 Nc8-/+) 38...h6?? (better is 38...Bg5 39.hg5 Rd7-/+) 39.Be6 1–0. Campos Calvo_Sotelo,Juan (1970) – Komysheva,M (2170), IV Veterans, Calvia ESP, 2007.

    6.Nd2 Nh6 7.c4 dc4 8.dc4 c5 9.b5 Be7 10.Bd3 f5 11.Qh5 Bf7 12.Qh3 0-0 13.Ne2 (13.e4 Be6=) 13...Nb6 14.e4 fe4 15.Be4 Qc7 (15...Nc4 16.Nc4 Bc4 17.Qc3 Be2 18.Ke2+=) 16.a4 (16.Rd1 Rad8 (16...Nc4 17.Nc4 Bc4 18.Rd7 Qa5 19.Qc3+=; 16...Bc4?? 17.Nc4 Nc4 18.Qe6 Kh8 19.Qc4+–) 17.Qc3 Qd7=) 16...Nc4= 17.Nc4 Bc4 18.Qh5 Attacks the isolani on e5 18...Bf6 19.g4 (19.Bc1!? Rad8 20.Nc3+=) 19...Bf7-/+ 20.Qh3 Be6 21.f3 Rad8 22.Bc3 Bg5 23.Qh5 Bf4 (better is 23...Be3!? 24.h3 Bd4-/+) 24.Nf4+= ef4 (worse is 24...Rf4 25.Qe5 Qe5 26.Be5=) 25.Qe5 (25.0-0!?+=) 25...Qe5-/+ 26.Be5 Bd5 27.g5 (27.0-0 Be4 28.fe4 g5–+) 27...Nf5 (27...Be4 28.fe4 Ng4 29.Bb2–+) 28.Rd1 (28.Bf4 Be4 29.fe4 Nd4–+) 28...Ne3 (28...Be4 29.fe4 Rde8 30.Kf2 Re5 31.ef5 Rff5 32.Rd7–+) 29.Rc1? (better is 29.Bd5 Rd5 30.Rd5 Nd5 31.Bd6-/+) 29...Be4 30.fe4 b6 (better is 30...Rfe8 31.Bc7 Rd7–+) 31.Ke2 Ng4 32.Bc3 Rde8 (better is 32...f3 33.Kf1 f2–+) 33.Kf3+= Ne5 (33...Ne3 34.Bd2 Rd8 35.Be3-/+) 34.Be5= Re5 35.h4 Rfe8 36.Rhe1 Rf8 37.Rcd1 Re7 ½–½. Jirovec,Peter – Lischnig,Hannes, Vienna op–B, 2003.

    6.Nf3 a5 7.c3 ab4 8.cb4 Bd6 9.Be2 Nh6 10.h3 (10.Nc3 0-0+=) 10...0-0 11.0-0 Qe7 12.Nbd2 Nb6 13.Rc1 Nf7 14.Nb3 Na4 15.Qc2 b6 16.Nfd2 (16.d4 Nb2 17.Qb2 Qd7+=) 16...Nb2-/+ 17.Qb2 f5 Black prepares the advance e4 18.Nf3 (18.d4 Ra7+=) 18...e4 19.Nfd4 Bd7 20.Nc6 (20.Nc2!?-/+) 20...Bc6–+ 21.Rc6 Qe5 22.Qe5 Ne5 (22...Be5?! 23.d4 Bd6 24.Ra1+=) 23.Rc3 (23.Rc3 ed3 24.Bd3 Ra3 25.Ra1 Ra1 26.Na1 Bb4 27.Rb3–+). Trigance,Emile – Mach,Jiri, FICGS, 2012.

    5.d3 Ne7

    6.Nc3 A) 6...Kf7 A1) 7.Be2 a5 (7...Nbc6 8.Nf3 Nf5 9.0-0 Be7 10.Qd2 a6 11.h3 Qd7 12.Nd5 Bd5) 8.b5 Nd7 9.Nf3 Nf5 10.0-0 Nb6 11.e4 Nd6 12.Nd5 Nd5; A2) 7.Nf3 Nbc6 (7...Qd7 8.Be2 Nbc6 9.0-0 a6 10.Qd2 Nf5 11.Nd5 Bd5 12.e4 Be7) 8.Be2 Nf5 9.0-0 Be7 10.Qd2 a6 11.h3 Qd7 12.Nd5 Bd5; B) 6...Nbc6 B1) 7.Nf3 Nf5 (7...Kf7 8.b5 Na5 9.Be2 a6 10.a4 ab5 11.ab5 Nf5 12.0-0 Bb4; 7...Qd7 8.b5 Na5 9.Be2 a6 10.a4 Nf5 11.0-0 Nd6 12.Qd2 ab5) 8.b5 Na5 9.Be2 Be7 10.Qd2 c6 11.0-0 0-0 12.bc6 Nc6; B2) 7.Be2 Nf5 8.b5 Na5 9.Nf3 Be7 10.Qd2 c6 11.bc6 Nc6 12.0-0 0-0; B3) 7.b5 Na5 8.Nf3 Kf7 9.Be2 a6 10.ba6 Ra6 11.d4 Rb6 12.Na4 e4.

    6.Nd2 a5 A) 7.Nb3 ab4 (7...Nd7 8.Na5 b6 9.Nb3 Kf7 10.Be2 Nf5 11.Nf3 c5 12.g4 Nd6) 8.Nc5 Bc8 9.ab4 Ra1 10.Qa1 Nbc6 11.Qa4 Qd6 12.c3 Kf7; B) 7.Ngf3 Nd7 (7...Qd6 8.b5 Kf7 9.Be2 Nd7 10.0-0 c6 11.bc6 Qc6 12.a4 Ng6) 8.Be2 Ng6 9.Bc3 Nb6 10.Nb3 Na4 11.Bd2 b6 12.ba5 Bd6.

    6.Nd2 Nd7 7.Ngf3 a5 (7...Kf7 8.Be2 Nb6 9.0-0 Na4 10.Qb1 Nc6 11.b5 Na5 12.Nb3 Nb3; 7...Nb6 8.c4 Qd7 9.c5 Na4 10.Be5 Rc8 11.Rc1 b5 12.Bf4 Ng6) 8.Be2 Ng6 9.Bc3 Bd6 10.Nb3 ab4 11.ab4 Ra1 12.Qa1 0-0.

    6.Nd2 Nf5 A) 7.Be2 Be7 (7...a5 8.Ngf3 ab4 9.ab4 Ra1 10.Qa1 Bb4 11.Qa8 e4 12.Nd4 Nd4) 8.e4 de4 9.de4 Nd4 10.Ngf3 Nbc6 11.b5 Ne2 12.Qe2 Na5; B) 7.Nb3 Nd7 (7...Be7 8.e4 Nh6 9.Nf3 0-0 10.Be2 Nd7 11.0-0 Nb6 12.Bc1 Nf7; 7...Na6 8.Nf3 Qd7 9.g4 Nd6 10.g5 0-0-0 11.Rg1 Kb8 12.Qd2 Be7) 8.Nf3 Be7 9.e4 Nd6 10.ed5 Bd5 11.Be2 0-0 12.0-0 c6; C) 7.c4 dc4 8.Nc4 Be7 9.Nf3 0-0 10.Qc2 Na6 11.d4 ed4 12.e4 Nb4; D) 7.Ngf3 Nc6 (7...Kf7 8.c4 dc4 9.Nc4 Nc6 10.b5 Nce7 11.Qb3 Ng6 12.Be2 a6) 8.Nb3 Bd6 9.e4 Nh6 10.ed5 Bd5 11.c4 Bf7 12.c5 Bf8.

    6.Nd2 Kf7 A) 7.Nb3 Nd7 (7...Qd6 8.Nc5 Nd7 9.Ne6 Qe6 10.Nf3 a5 11.Be2 ab4 12.ab4 Ra1) 8.Nf3 c5 9.Be2 Nc6 10.b5 Na5 11.0-0 Nb3 12.cb3 Qb6; B) 7.Be2 a5 (7...Nf5 8.Ngf3 Nc6 9.b5 Na5 10.0-0 Be7 11.e4 de4 12.de4 Nd6; 7...c5 8.bc5 Ng6 9.Ngf3 Nd7 10.h4 Nc5 11.h5 Ne7 12.h6 gh6) 8.Ngf3 Nf5 9.e4 de4 10.de4 Nd6 11.0-0 ab4 12.ab4 Nc6; C) 7.Nh3 Qd7 (7...Nbc6 8.Nb3 a6 9.Be2 Nf5 10.0-0 Qd7 11.Bg4 Bd6 12.Qf3 h6) 8.f4 Nf5 9.fe5 Ne3 10.Qh5 Kg8 11.ef6 Nc2 12.Kf2 Na1; D) 7.Ngf3+= a6 (7...Nf5 8.c4 dc4 9.Nc4 Na6 10.d4 e4 11.Nfd2 b5 12.Na5 Qd5) 8.Nb3 Nbc6 9.Nc5 Bc8 10.Be2 b6 11.Nb3 Be6 12.0-0 Nf5.

    6.Nd2 Ng6 7.c4 (7.h4 Nd7= (7...Nc6 8.h5 Nge7 9.Nb3 Nf5 10.b5 Nce7 11.Nf3 Qd6 12.e4 Nh6; 7...Bd6 8.h5 Ne7 9.c4 c5 10.Ngf3 cb4 11.Be2 0-0 12.ab4 Bb4; 7...a6 8.Nb3 Bd6 9.h5 Ne7 10.c4 Nec6 11.c5 Be7 12.h6 gh6; 7...a5 8.h5 Ne7 9.Ngf3 ab4 10.ab4 Ra1 11.Qa1 Na6 12.b5 Nc5) 8.Ngf3 h5 9.c4 a5 10.Qb3 ab4 11.ab4 Ra1 12.Ba1 Nb6; 7.Ngf3 a5 (7...Nd7 8.h4 h5 9.c4 a5 10.b5 Kf7 11.Qc2 Be7 12.cd5 Bd5; 7...Bd6 8.h4 h5 9.c4 Nc6 10.cd5 Bd5 11.Nc4 Kf7 12.e4 Be6; 7...a6 8.Be2 Nc6 9.h4 h5 10.c4 Be7 11.0-0 0-0 12.Qc2 Qe8) 8.h4 h5 9.b5 Nd7 10.c4 Bd6 11.d4 e4 12.Qc2 Bf7) 7...c5 (7...a5 8.b5+= Kf7 9.Qf3 Be7 10.Nh3 Kg8 11.Be2 Nh4 12.Qg3 Nf5) 8.b5= Be7 (8...a6 9.a4= Kf7 10.Ngf3 Nd7 11.Be2 Bd6 12.0-0 ab5) 9.Ngf3 (9.h4 h5+= (9...Nd7 10.h5 Ngf8 11.cd5 Bd5 12.Ne2 Bf7) 10.Be2 Nd7 11.Bh5 Rh6 12.cd5 Bd5) 9...0-0 (9...Nd7 10.h4= h5 11.Be2 0-0 12.0-0 f5; 9...d4 10.h4 h5 11.Be2 a6 12.a4 0-0) 10.Be2 (10.h4 h5= 11.Be2 Nd7 12.0-0 f5; 10.cd5 Bd5 11.h4 h5 12.Qc2 Kh7) 10...Nd7 (10...Qa5 11.0-0 Nd7 12.a4 Qc7) 11.0-0 (11.h4 h5= 12.0-0 f5) 11...a6 (11...d4 12.Qc2+= (12.a4 f5) 12...f5) 12.a4 (12.Qb3 d4+=) 12...Nb6 (12...d4 13.Qe1+=) 13.Qc2 (13.ba6 Ra6 14.a5 dc4 15.dc4 Nc8=) 13...dc4 (13...ab5!? 14.cb5 Qd7=) 14.dc4+= Qc8 (14...ab5 15.ab5 Qc7 16.h4+=) 15.Bd3 (15.a5 Nd7 16.h4 Bg4+/–) 15...a5 (15...ab5 16.ab5 Qd7 17.Rfd1+=) 16.Nb3 (16.Rfd1 Rd8+/–) 16...f5? (better is 16...Qc7=) 17.Ne5+/– Bf6 (17...Rd8 18.Rfd1+/–) 18.Ng6 hg6 19.Bf6 gf6 20.Qc3 Qc7 21.Rfd1 Qe5? (better is 21...Kg7+/–) 22.Qe5+– fe5 23.Nc5 Bc4 24.Nd7!! Bd3 (24...Nd7 25.Bc4) 25.Nf8 (25.Rd3?! Nd7 26.Rd7 Rab8+–; 25.Nb6?! Rad8+–) 25...Bc2 (25...Be2 26.Rd2 (26.Ng6?! Bd1 27.Rd1 Na4+–) 26...Kf8 27.Re2+–) 26.Rd2 (26.Ng6?! Bd1 27.Rd1 Re8+–) 26...Ba4 27.Ng6 Rc8 1–0. Rodriguez Izquierdo,B – Sobrino Garcia,R, Valladolid, 1990.

    6.Be2 A) 6...Nf5 A1) 7.Nc3 a5 (7...Nc6 8.Nf3 Be7 9.b5 Na5 10.e4 de4 11.de4 Nd6 12.0-0 0-0) 8.b5 Be7 9.Nf3 Nd7 10.0-0 Nd6 11.h4 0-0 12.h5 Qe8; A2) 7.Nf3 a5 (7...Be7 8.0-0 0-0 9.Qd2 d4 10.ed4 Nd4 11.Nd4 ed4 12.f4 Qd7; 7...c5 8.Nbd2 cb4 9.ab4 Bb4 10.c3 Be7 11.0-0 Nc6 12.c4 dc4) 8.b5 Nd7 9.Nc3 Be7 10.0-0 Nd6 11.h4 0-0 12.h5 Qe8; B) 6...a5 7.b5 Nd7 (7...Nf5 8.Nf3 Nd7 9.Nc3 Be7 10.0-0 Nd6 11.h4 0-0 12.h5 Qe8; 7...g6 8.Nc3 Bh6 9.Nf3 Qd6 10.Qd2 Nd7 11.0-0 0-0 12.Qd1 Nb6) 8.Nf3 Nf5 9.Nc3 Be7 10.0-0 Nd6 11.h4 0-0 12.h5 Qe8.

    6.Nf3 A) 6...Kf7 7.Be2 a5 8.b5 Nd7 9.0-0 Nc5 10.Nc3 d4 11.ed4 ed4 12.Ne4 Ne4; B) 6...a5 B1) 7.b5 Nd7 (7...Nf5 8.Be2 Be7 9.Nc3 Nd7 10.0-0 0-0 11.Nd5 Bd5 12.e4 Nc5) 8.Nc3 Nf5 9.Be2 Be7 10.Nd5 Bd5 11.e4 Nc5 12.ef5 Qd7; B2) 7.Nc3 ab4 8.ab4 Ra1 9.Qa1 Kf7 10.Be2 Nbc6 11.b5 Nb4 12.0-0 Nf5; B3) 7.Nbd2 Nd7 (7...ab4 8.ab4 Nd7 9.Be2 Kf7 10.0-0 Nf5 11.e4 Nd6 12.ed5 Bd5; 7...Qd6 8.b5 Kf7 9.Be2 Nd7 10.0-0 Rd8 11.c4 c6 12.Qa4 b6) 8.Be2 Ng6 9.Bc3 Be7 10.Nb3 ab4 11.ab4 0-0 12.0-0 c5; C) 6...Nbc6 7.Be2 Kf7 (7...a6 8.0-0 Nf5 9.e4 de4 10.de4 Nfd4 11.Nd4 Nd4 12.f4 Qd6; 7...Nf5 8.b5 Nce7 9.0-0 Kf7 10.Nc3 a6 11.a4 Rg8 12.h4 Nd6) 8.0-0 a6 9.Nc3 Nf5 10.Qd2 Be7 11.h3 Qd7 12.Nd5 Bd5.

    5.d3 Nh6

    6.Nd2 a5 7.c3 (7.b5 Bd6 8.c4 0-0 9.d4 ed4 10.Bd4 c5+=) 7...Bd6 8.Ngf3 Nd7 9.Be2 0-0 10.0-0 Nf7+=.

    6.Nd2 Bd6 7.c4 0-0 8.d4 c6 9.e4 ed4 10.Bd4 Re8+=.

    6.Nd2 Be7 7.Ngf3 0-0 8.c4 c6 9.Nb3 dc4 10.dc4 Qd1 11.Rd1 Nd7 12.Na5 c5 13.b5 (worse is 13.Nb7 cb4 14.Nd6 Nf7+=) 13...Rfb8 14.Bc3 a6 15.Bd3 Bd8 16.b6 (16.Nb7!? Rb7 17.Be4-/+) 16...Nb6-/+ 17.Be4 Na4 (17...Bc4? 18.Nc4 Nc4 19.Bd5 Kh8 20.Bc4+/–) 18.Bd2 f5 (18...Ba5 19.Ba5 Nb2 20.Rd6 Nc4 21.Re6 Na5 22.Ke2-/+) 19.Bc2 (better is 19.Bb7!? Ba5 20.Ba8 Bd2 21.Rd2 Ra8 22.Rd6–+) 19...Nb2-/+ 20.Rb1 Ba5 21.Rb2 Bd2 22.Kd2 e4 23.Ne5 Nf7 24.Nf7 Kf7 25.Rhb1 Ra7 26.Rb6 Bc4 27.Kc3 Be6 28.g4 g6 29.g5 Ke7 30.Ba4 Bd5 31.h4 Rd8 32.h5 (32.Bb3 Bc6-/+) 32...gh5 33.Bb3 Bc6 34.Rh1 Rd3 35.Kc2 Be8 36.a4 a5 37.Rh6 Bg6 38.Bg8 (38.R1h5 Bh5 39.Rh5 Kf8 40.Rh7 Rd6 41.Rf7 Ke8-/+) 38...Ra6 (better is 38...Ra3!?–+) 39.Bh7-/+ Kf7 40.Rb1 Rd7 41.Rb5 Kg7 42.Bg6 Rg6 43.Rh5 b6 44.Rb1 Kg8 (44...Rgd6 45.Rh6 Rd2 46.Kc1 Rd1 47.Kb2 R7d2 48.Kc3 Rb1 49.Kd2 Rb2 50.Kc3 Rf2 51.Rb6-/+) 45.Kc3 Rd3 46.Kc4 Rd2 47.Rh6 Rh6 48.gh6 Rd6 49.Rh1 Kh7 50.Rh5 Rh6 51.Rf5 Rd6 52.Kb5 Re6 53.f4 ef3! 54.Rf3 Kg6 55.e4 Rf6 (55...Re4 56.Kb6 Ra4 57.Kc5+=) 56.Re3 (56.Rg3 Kh5+=) 56...Kf7 (better is 56...Kg5!?-/+) 57.e5+= Rh6 58.Re1 Re6 59.Kc4 Ke7 60.Kd5 Rh6 61.Rg1 Kf7 62.Rf1 Ke7 63.Rg1 Kf7 (63...Rh4!? 64.e6 Rh5 65.Kc6 Ke6 66.Re1 Re5=) 64.Rg4 Ke7 65.Rg7 Ke8 66.Rb7 Kd8 67.e6 Rh4 68.Rb8 (68.Rb6!? Ra4 69.Rb8 Ke7 70.Rb7 Ke8 71.Kc5=) 68...Ke7= 69.Rb7 Ke8 (69...Kd8!?=) 70.Rb6+= Ra4 71.Kc5 ½–½. Deepan,C (2480) – Singh,Gurp (2265), 1st SCS GM Open, Bhubaneswar IND, 2009.

    6.Nd2 Nf7 7.c4 (7.Ngf3 a5 8.b5 Bd6 9.c4 c5 10.bc6 bc6=; 7.Be2 a5 (7...Bd6 8.c4 0-0 9.Ngf3 dc4 10.Nc4 Nc6=) 8.b5 Bd6 9.c4 0-0 10.Ngf3 c6=; 7.d4 Bd6 (7...Nd7 8.c4 ed4 9.cd5 Bd5 10.e4 Qe7=) 8.c4 0-0 9.cd5 Bd5 10.Qh5 g6=) 7...c6 (7...a5 8.b5 c6 9.Qa4 Qb6 10.d4 cb5=) 8.f4 (8.d4 Bd6 9.cd5 cd5 10.de5 fe5=) 8...Bd6 9.g3 (9.c5 Bc7 10.fe5 Ne5+=) 9...0-0 (9...Qe7 10.Ne2 0-0+=) 10.Ngf3 (10.c5 Be7+=) 10...Re8 (10...Nd7+=) 11.fe5 fe5 12.Bg2 Nd7 13.0-0 Bf8 14.Qc2 g6 15.e4 d4 16.c5 Qe7 17.Nc4 b6 18.cb6 ab6 19.Bc1 b5 20.Na5 c5 21.Rb1 Rec8 22.Qe2 c4 23.h4 Nb6 24.Bg5 Qd7 25.Bf6 Bg7 26.Ng5 (26.Bg7!? Kg7 27.Qf2-/+) 26...cd3 27.Qd3 Ng5 28.hg5 Rc3 29.Qd2 Rg3 30.Bg7 Bh3 31.Rf2 Kg7 32.Rbf1 Qg4 33.Qa2 Nc4 34.Nc4 Rg2 (better is 34...bc4 35.a4 Qg5–+) 35.Rg2 Qg2 (35...Bg2?! 36.Ne3 de3 37.Qf7 Kh8 38.Qf6 Kg8 39.Qf7 Kh8 40.Qf6 Kg8 41.Qf7 Kh8=) 36.Qg2 Bg2 37.Kg2 (better is 37.Nb6 Bf1 38.Na8–+) 37...bc4 38.Ra1 c3 39.Kf2 c2 40.Rc1 d3 41.Ke3 Ra3 42.b5 Rb3 43.b6 h6 44.gh6 Kh6 45.b7 g5 46.b8Q Rb8 47.Kd3 Rc8 0–1. Passerotti,Pierluigi (2340) – Schmidt,Wlodzimierz (2430), Rome, 1979.

    6.d4 Bd6 7.de5 fe5 8.Nf3 Nf7 9.Nbd2 a5 10.ba5 c6 =.

    6.d4 Nd7 7.c4 dc4 (7...a5 8.cd5 Bd5 9.de5 Ne5 10.Be5 fe5=) 8.d5 Bf7 9.Bc4 c6 10.Ba2 a5 =.

    6.d4 e4 7.c4 dc4 (7...a5 8.cd5 Bd5 9.b5 f5 10.Nc3 Bf7=) 8.Nc3 c6 9.Ne4 b5 10.Bc3 Bd5 =.

    6.Nf3 a5 7.b5 Nd7 (7...Bd6 8.c4 dc4 9.dc4 Nd7 10.Be2 0-0=) 8.Be2 Nb6 9.0-0 Bd6 10.e4 0-0 +=.

    6.Nf3 Bd6 7.c4 a5 8.d4 e4 9.Nfd2 f5 10.ba5 c6 =.

    6.Nf3 Bd6 7.Be2 a5 (7...0-0 8.0-0 Nf7 9.c4 dc4 10.dc4 c5=) 8.b5 0-0 9.c4 dc4 10.dc4 Nd7 =.

    6.Nf3 Nf5 7.Be2 a5 8.b5 Qd7 9.Nc3 Nd6 10.d4 e4 =.

    5.d4 ed4

    6.ed4 a5 A) 7.Qh5 g6 (7...Bf7 8.Qe2 Ne7 9.b5 Nd7 10.Nf3 Nb6 11.Nbd2=) 8.Qe2 Qe7 9.ba5 Nc6 10.Nd2 Na5 11.Ngf3=; B) 7.b5 B1) 7...Bf5 8.Nf3 (8.Bd3 Bd3 9.Qd3 Bd6 10.Nf3 Qe7 11.Kd1=; 8.c4 Qe7 9.Qe2 dc4 10.Qe7 Ne7 11.Bc4=; 8.Nc3 Nh6 9.Bc1 Nf7 10.Qf3 Be6 11.Nge2=) 8...Bd6 9.Be2 Ne7 10.0-0 0-0 11.c4+=; B2) 7...Bd6 8.Bd3 (8.Nf3 Bf5 9.Bd3 Qe7 10.Be2 Qf7 11.0-0=) 8...Qe7 9.Ne2 f5 10.0-0 Nf6 11.Bc1=.

    6.ed4 Nc6 7.Bd3 Bd6 8.Qh5 Bf7 9.Qg4 g6 10.Nd2 Qe7 11.Ne2 Be6 12.Qf3 0-0-0 13.b5 Na5 (13...Nb8 14.0-0=) 14.Bc3+= b6 (14...Nc4 15.Nc4 dc4 16.Be4+/–) 15.Ba5+/– ba5 16.c4 Ba3 17.0-0 Bb4 18.Nb3 White intends c5 18...Kb8 (18...Nh6!? 19.Nf4 Bg4+/–) 19.c5+– f5? (better is 19...h5 20.Nf4 Bg4+–) 20.Na5 Ba5 21.Ra5 Kb7 (21...g5+–) 22.c6 Kb8 23.Rfa1 1–0. marekt – Gavrosh, ChessWorld.net, 2012.

    6.ed4 Qd7 7.Bd3 Bd6 (7...a5 8.b5 Bd6 9.Nf3 Ne7 10.0-0 0-0 11.Re1=) 8.Nf3 Ne7 9.0-0 0-0 10.Re1 a5 11.Qe2=.

    6.ed4 Nd7 A) 7.Nf3 A1) 7...a5 8.ba5 (8.b5 Bd6 9.Bd3 Nh6 10.Qe2 Kf7 11.Bc1=) 8...Bg4 9.Be2 Bd6 10.Bc3 Ne7 11.Bb4+=; A2) 7...Bf5 8.Be2 (8.Nc3 Nb6 9.Be2 Qd7 10.0-0 0-0-0 11.Bc1=) 8...a5 9.ba5 Bd6 10.0-0 Ne7 11.Nh4+=; A3) 7...Bg4 8.Be2 Bd6 9.0-0 Ne7 10.Re1 0-0 11.c4=; A4) 7...Nh6 8.Bd3 (8.Bc1 Nf7 9.Bd3 Bd6 10.0-0 0-0 11.Re1=; 8.Bb5 Bd6 9.0-0 0-0 10.Bc1 Nf7 11.Re1=) 8...Bd6 9.Qe2 Kf7 10.0-0 Re8 11.Bc1=; A5) 7...Qe7 8.Be2 0-0-0 9.0-0 Qf7 10.Re1 Re8 11.Nbd2+=; A6) 7...Nb6 8.Bb5 Bd7 9.Qe2 Qe7 10.0-0 Qe2 11.Be2=; A7) 7...Bd6 8.Bd3 Nh6 9.Qe2 Kf7 10.0-0 Re8 11.Bc1=; B) 7.Bd3 B1) 7...a5 8.ba5 (8.b5 Bd6 9.Qh5 Bf7 10.Qg4 Qe7 11.Ne2=; 8.Qe2 Qe7 9.ba5 c5 10.dc5 Nc5 11.Bb5=; 8.c3 Bd6 9.Nf3 ab4 10.cb4 Nh6 11.0-0=) 8...c5 9.Qh5 Bf7 10.Qe2 Ne7 11.Nf3=; B2) 7...Nh6 8.Bc1 (8.Nf3 Bd6 9.Bc1 Nf7 10.0-0 0-0 11.Re1=) 8...Nf5 9.Nf3 Kf7 10.0-0 Bd6 11.c4+=; B3) 7...Bd6 8.Nf3 Nh6 9.Bc1 Nf7 10.0-0 0-0 11.Re1=.

    6.Qd4 a5 7.Bb5 c6 8.Bd3 ab4 9.ab4 Ra1 10.Ba1=.

    6.Qd4 a6 7.Qd1 (7.Nf3 Bd6 8.Bd3 Nc6 9.Qh4 Nh6 10.Nc3=; 7.Bd3 Nc6 8.Qh4 Nh6 9.Nh3 Ne5 10.Nd2+=; 7.Be2 Nc6 8.Qd2 Bd6 9.Nf3 Nge7 10.0-0=; 7.Qd2 Bd6 8.Nf3 Nc6 9.Be2 Nge7 10.0-0=; 7.Ne2 Nc6 8.Qh4 Nh6 9.Nf4 Bg4 10.f3=) 7...a5 8.b5 Bd6 9.Nf3 Ne7 10.Bd3=.

    6.Qd4 c6 7.Bd3 (7.Nf3 Bd6 8.Be2 Ne7 9.0-0 Nd7 10.Nbd2=) 7...Nd7 8.Nf3 Bd6 9.Ng5 Qe7 10.Ne6=.

    6.Qd4 Nc6 7.Bb5 (7.Qd1 Bd6 8.Nf3 Nge7 9.Be2 0-0 10.0-0=; 7.Qh4 Bd6 8.Bb5 Nge7 9.Ne2 Qd7 10.Nbc3+=) 7...a5 8.ba5 Nge7 9.Qc3 Bd7 10.Nf3=.

    6.Qd4 Bd6 7.Nf3 a5 8.b5 Ne7 9.c4 (9.Be2 Nd7 10.0-0=) 9...Nd7 10.cd5 Nd5 11.Nc3 Nc3 12.Qc3 Nc5 13.Bc4 Qe7 14.Nd4 Na4 15.Qc2 Bc4 16.Qa4 Be6 17.Ne6 Qe6 18.Rc1 ½–½. Angermann,Immo Frank – Farmer,Walter, DESC, 2000.

    6.Qd4 Bd6 7.Nf3 Nc6 8.Bb5 Nge7 9.Qd2 (9.Nc3 0-0 10.Qd2 a5+=) 9...a5 10.Nd4 (10.ba5 0-0-/+) 10...Bd7-/+ 11.0-0 Nd4 12.Bd7 Qd7 (12...Kd7?! 13.Bd4 (13.Qd4?? Be5 14.Qd3 Bb2–+) 13...ab4 14.ab4 Ra1 15.Ba1=) 13.Bd4 ab4 14.ab4 Ra1 15.Ba1 Qb5 16.Bc3?? (better is 16.Rd1-/+) 16...Bh2!–+ 17.Kh2 Qf1 18.Na3 (18.Qe1 Qe1 19.Be1 Kf7–+) 18...h5 19.Qe1 (19.e4 h4 20.Qe1 Qe1 21.Be1 de4–+) 19...Qe1 20.Be1 Kd7 21.Nb5 (21.Bd2 Ra8 22.Bc1 Nc6–+) 21...Ra8 22.Nd4 Ra2 23.Kg3 (23.Kg1 Nc6 24.c3 Ne5–+) 23...Nc6 24.c3 Ne5 0–1. yulio (1960) – marekt (2170), gameknot.com, 2014.

    6.Qd4 Bd6 7.Nf3 Nc6 8.Qc3 Nge7 9.Be2 Qd7 10.0-0=.

    6.Qd4 Bd6 7.Nf3 Nc6 8.Qd2 Nge7=.

    6.Qd4 Qd7 7.Qd2 (7.Bd3 Nc6 8.Qc3 Bd6 9.Nf3 Ne5 10.Nd4=; 7.Qh4 Bd6 8.Bd3 Nc6 9.Qh5 Kd8 10.Nc3+=; 7.Nf3 Bd6 8.Qd1 Ne7 9.Bd3 Nbc6 10.b5=; 7.Nc3 Nc6 8.Qd2 Ne5 9.Rd1 Ne7 10.f4=) 7...Bd6 8.Nf3 Nc6 9.Nc3 Nge7 10.Nb5=.

    6.Qd4 Nd7 7.Qd1 (7.Nf3 a5 8.Bb5 c6 9.Be2 Bf5 10.c3=; 7.Be2 c5 8.Qd2 Nb6 9.bc5 Bc5 10.Nf3=) 7...Bd6 8.Nf3 Qe7 9.Nc3 c6 10.Be2=.

    6.Qd4 Ne7 7.Qd1 (7.Qd2 Nbc6 8.Nf3 Qd6 9.Be2 Ne5 10.Nd4=; 7.Nf3 a5 8.Qd1 ab4 9.Nd4 Bc8 10.ab4=; 7.Qd3 a5 8.Nf3 ab4 9.ab4 Ra1 10.Ba1=; 7.Ne2 Ng6 8.Qd2 Nc6 9.Nbc3 Qd7 10.Rd1=) 7...a5 8.b5 Nd7 9.Nf3 Nf5 10.Nc3=.

    6.Qd4 Nh6 7.Qd2 (7.Nf3 Bd6 8.Bb5 c6 9.Bd3 Nd7 10.Qc3=; 7.Qd3 a5 8.Ne2 ab4 9.Qb5 Nc6 10.Nd4=) 7...Bd6 8.Nf3 0-0 9.Be2 c6 10.Nd4=.

    6.Bd4 a5 7.b5 c5 8.bc6 bc6 9.Nf3 Nd7 10.c4=.

    6.Bd4 a5 7.b5 Ne7=.

    6.Bd4 c6 7.Ne2 (7.Nh3 Bd6 8.Bd3 Nh6 9.Nf4 Bg4 10.f3=; 7.Nf3 a5 8.b5 Bd6 9.Bd3 Ne7 10.0-0=; 7.Bd3 a5 8.c3 Bd6 9.Qh5 Bf7 10.Qg4=; 7.c3 b6 8.Ne2 c5 9.e4 cd4 10.Nd4-/+) 7...Bd6 8.Nf4 Bf4 9.ef4 Ne7 10.Bd3=.

    6.Bd4 Nc6 7.Bb2 Bd6 8.Nf3 Nge7 9.Be2 0-0 10.0-0 Qe8 11.Nbd2 Qg6 12.c4 a6 13.Qb3 Rad8 14.Rad1 Kh8 15.c5 Be5 16.Rfe1 Bf5 17.Nh4 Qh6 18.g3 Bb2 19.Qb2 Be4 20.Ne4 de4 21.Ng2 Ng6 (21...Nd5 22.Nf4 Nf4 23.ef4=) 22.b5 ab5 23.Qb5 Rb8 24.Rd2 Nge5 25.Nf4 f5 26.Red1 g5 (26...Ng4 27.h3 Nge5 28.Qb3=) 27.Qb2 gf4 28.ef4 b6 29.cb6 Rb6 30.Qc3 Qg7 31.fe5 Ne5 32.Qc5 Rc6 33.Qa5 Qe7 34.Rd5 Re6 35.Qc3 c6 36.R5d4 Rc8 37.Qb2 (37.f4 ef3 38.Bf3 Nf3 39.Qf3 Re3 40.Qf5 Rf8=) 37...Qf6 38.Qb6 Ree8 39.a4 Qe7 40.Rd6 c5 41.Rc1 c4 42.Rd5 Qg5 43.Rc3 Qg7 44.Qd4 f4 45.Kf1 (45.Bc4 e3 (worse is 45...Nc4 46.Rc4 Rc4 47.Qc4+=) 46.Re5 Re5 (46...Qe5?! 47.Qe5 Re5 48.gf4–+) 47.fe3 fg3 48.hg3 Rec5–+; worse is 45.Qe4 Nc6 46.Qc4 Na7-/+) 45...f3 46.Bd1 (46.Bc4? A) worse is 46...Rc4 47.Qe5 (47.Rc4? Nc4 48.Kg1 Nb6 49.Qg7 Kg7–+) 47...Qe5 48.Re5+=; B) 46...Nc4 47.Ke1 Qd4 48.Rd4 Na5 49.Rc8 Rc8–+) 46...Nd3 47.Rc4 Qd4 48.Rdd4 ½–½. Pommerel,Wim – Bendig,Frank, corr TKM/FINAL, 2003.

    6.Bd4 Nc6 7.Bb5 a5 8.c3 Bd6 9.Qh5 Bf7 10.Qg4=.

    6.Bd4 Nc6 7.Nf3 Bd6 8.Bd3 Nge7 9.Nc3 Bg4 10.0-0=.

    6.Bd4 Nh6 7.Nf3 Bd6 8.c4 Nc6 9.cd5 Bd5 10.Nc3 Bf7 11.Ne4 Nd4 12.Qd4 Be7 13.Bc4 Qd4 14.Bf7 (14.ed4?? Bc4 15.Rc1 Bd5–+) 14...Kf7 15.Nd4 a5 16.b5 Rhe8 17.0-0 Ba3 18.Nf6 Kf6 19.Ra3 Nf5 20.Nf5 Kf5 21.f3 Re5 22.e4 Kf6 23.Rc1 Rb5 24.Rc7 a4 25.f4 Rb4 26.e5 Kg6 27.g3 b5 28.Kf2 h5 29.Ke3 Rb2 30.h3 Rb1 31.g4 b4 32.Rd3 a3 33.f5 Kh6 34.Rdd7 Rg8 (34...a2 35.Rg7 Ra3 36.Ke4 Re1 37.Kf4 Rf1 38.Ke4 Re1 39.Kf4 Rf1 40.Ke4 Re1=) 35.Ra7 b3 36.Ra3 Re1 37.Kf4 Rf1 38.Kg3 b2 39.Ra6 Kh7 40.Rb6 b1Q 41.Rb1 Rb1 42.Kh4 hg4 43.hg4 Rgb8 44.Rc7 R8b7 45.Rb7 Rb7 46.e6 Rb4 47.Kg5 Re4 48.Kh5 g6! 49.Kg5 (49.fg6 Kg7 Combination) 49...Kg8 (49...gf5 50.Kf5 Re1 51.Kf6 Rf1 52.Ke7–+) 50.Kg6 Rg4 51.Kf6 Ra4 52.Kg6 (better is 52.Ke7 Ra7 53.Kf6–+) 52...Re4 53.Kg5 Kf8 (53...Kg7 54.f6 Kg8 55.f7 Kg7 56.Kf5–+) 54.Kg6 (54.Kf6 Re2 55.e7 Ke8 56.Kg5–+) 54...Ke7 55.Kg5 Re1 56.Kg4 Kf6 57.Kf4 Re5 0–1. Fournier,Frederic (1990) – enribedi(C) (2575), Active, 2005.

    6.ed4 Bd6

    7.Bb5 A) 7...c6 8.Bd3 (8.Qe2 Qe7 9.Bd3 Bg4 10.f3 Bh5 11.c4=) 8...Qe7 9.Ne2 a5 10.ba5 Ra5 11.0-0=; B) 7...Kf7 8.Bd3 (8.Nf3 a5 9.ba5 c6 10.Bd3 Qa5 11.Nbd2=; 8.Qf3 Ne7 9.Nh3 Bf5 10.0-0 a5 11.c3=) 8...Ne7 9.Nf3 a5 10.b5 Qd7 11.0-0=; C) 7...Nd7 8.Nf3 (8.Bd3 Ne7 9.Nc3 Nb6 10.Qe2 Qd7 11.Nb5=; 8.Ne2 a5 9.Qd2 ab4 10.ab4 Ra1 11.Ba1=) 8...c6 9.Bd3 Nh6 10.0-0 0-0 11.Bc1=.

    7.c4 dc4+= 8.Nd2 (8.Qh5 Kf8+=) 8...Qe7-/+ 9.Be2 (9.Qh5 Bf7 10.Qe2 b5-/+) 9...Bd5 (9...b5 10.Rc1-/+) 10.Kf1 (10.Ngf3 b5+=) 10...Qf7 (10...b5 11.Qc2-/+) 11.Qa4 (11.Qc2 b5-/+) 11...Nd7 12.Bf3 (12.Ngf3 c6-/+) 12...c6 (12...Ne7 13.Ne4-/+) 13.Re1 Ne7 14.Ne4 Be4 15.Be4 0-0 16.h4 (16.Nf3 f5 17.Bc2 b5-/+) 16...b5 (16...f5 17.Bc2–+) 17.Qd1 (17.Qa6 f5 18.Bf3 Bf4-/+) 17...Nd5 (17...f5 18.Bc2–+) 18.Nf3 Rfe8 (18...f5 19.Bc2–+) 19.g3 (19.Qc2!? Qh5 20.Rh3-/+) 19...a5 (19...f5 20.Bd5 cd5 21.Kg2–+) 20.ba5 (20.Qc2 Qh5 21.g4 Qg4 22.Bh7 Kf8–+) 20...Ra5 (20...f5 21.Bc2–+) 21.Kg2 Raa8 (21...Ba3 22.Ba3 Ra3 23.Qb1–+) 22.h5 (22.Qc2 Qh5–+) 22...Nf8 (22...f5 23.Bd5 Qd5 24.h6–+) 23.Nh4 (23.h6 g6–+) 23...Ba3 24.Ba3 Ra3 25.Qg4 (25.Nf5 Qd7 26.Qc2 Nc3–+) 25...Ne7 (better is 25...b4–+) 26.Bc6?? (26.Nf5 Nf5 27.Qf5 Re6–+) 26...Nc6 27.Nf5 Qd5 (27...Ng6 28.hg6 hg6 29.Re8 Qe8 30.Nd6+/–) 28.Kh2 The mate threat is Qxg7 28...g6 (28...Rg3 29.fg3 Ne6 30.Re6+–) 29.hg6+= hg6 30.Nh6 Kg7 31.Re8 Ra2 (31...Nd4 32.Re7 Kh8 33.Re4–+) 32.Qf4= Qh5 (32...g5 33.Qe3=) 33.Kg2 Qd5 Black terminates the opponent with strong threats 34.Re4 (34.Qe4 Qe4 35.Re4-/+) 34...Ne6 35.Qh4 (35.Qe3 f5 (35...Ncd4 36.Ng4 Ng5 37.Nf6 Kf6 38.Qd4 Qd4 39.Rd4+=) 36.Nf5 gf5 37.Qh6 Kf7 38.Qe6 Qe6 39.Rh7 Kg6 40.Re6 Kh7 41.Rc6 Rd2+=) 35...Ng5 (35...Ncd4 36.Ng8 Nf4 37.Qf4 Kg8 38.Qb8 Kg7 39.Qh8 Kf7 40.Rh7; 35...Ned4 36.Qf4 Re2 37.Nf5 Nf5 38.Rb1–+) 36.Nf5 Kf7 (36...gf5?! 37.Qh8 Kf7 38.Qe8 Kg7 39.Qh8 Kf7 40.Qe8 Kg7 41.Qh8=; 36...Qf5?! 37.Qh8 Kf7 38.Qe8 Kg7 39.Qh8 Kf7 40.Qe8 Kg7 41.Qh8=) 37.Nd6? (37.Nh6 Kf8 38.Rhe1 Nd4 39.Kf1 Ne4 40.Qe4 Qe4 41.Re4–+) 37...Qd6–+ 38.Qh8 (38.Re3–+) 38...Rf2! 39.Kf2 Decoy theme: f2 39...Ne4 (39...Ne4 40.Kf1 Ng3 41.Kg2 Nh1 42.Qh7 Ke6 43.Kh1 Qd5 44.Kh2 Qh5 45.Qh5 gh5–+) 0–1. Kosikov,Alexey I (2420) – Semenova,Lidia K (2255), Kiev–ch, 2002.

    7.Nd2 Qe7 8.Be2 A) 8...Nd7 9.Ngf3 c6 10.0-0 Nh6 11.c4 0-0 12.c5+=; B) 8...Bf5 9.Ngf3 (9.c4 a5 10.ba5 dc4 11.Nc4 Be4 12.Nd6=) 9...a5 10.0-0 ab4 11.Re1 Be6 12.ab4+=; C) 8...g5 9.Nb3 (9.Bh5 Kd7 10.Ne2 Kc8 11.c4 dc4 12.Qc2=; 9.h4 g4 10.Kf1 Nh6 11.Nb3 g3 12.Nc5=) 9...Nd7 10.Nf3 0-0-0 11.0-0 g4 12.Nfd2=; D) 8...Bg4 9.Ngf3 Bf3 10.Nf3 Bb4 11.ab4 Qb4 12.Qd2+=; E) 8...Nh6 9.Ngf3 Nd7 10.0-0 Qf7 11.Nb3 0-0-0 12.Bc1=; F) 8...Bd7 9.Ngf3 a5 10.ba5 Nh6 11.0-0 0-0 12.Re1+=; G) 8...Kf7 9.Ngf3 c6 10.0-0 Nh6 11.c4 Re8 12.c5+=; H) 8...a5 9.ba5 (9.b5 Bd7 10.Kf1 Nh6 11.c4 0-0 12.g3=; 9.Ngf3 ab4 10.ab4 Ra1 11.Qa1 c6 12.c3=) 9...Nh6 10.Ngf3 0-0 11.0-0 Ra5 12.Re1=.

    7.Nd2 Ne7 8.Bb5 A) 8...Bd7 9.Bd3 (9.Bd7 Qd7 10.Qh5 Kd8 11.Ne2 Qc6 12.Bc3=; 9.Qh5 g6 10.Bd7 Nd7 11.Qe2 0-0 12.Ngf3=; 9.Be2 0-0 10.Ngf3 a5 11.b5 Ng6 12.0-0+=) 9...a5 10.b5 0-0 11.c4 Qe8 12.Ne2=; B) 8...Nd7 9.Ne2 (9.Bd3 0-0 10.Ngf3 a5 11.b5 Bf5 12.Bf5=; 9.Ngf3 a5 10.Bc3 c6 11.Be2 ab4 12.Bb4=) 9...a6 10.Bd3 a5 11.b5 0-0 12.c4=; C) 8...Nbc6 9.Ngf3 (9.Ne2 a5 10.c3 0-0 11.0-0 Re8 12.Re1=) 9...a5 10.c3 0-0 11.0-0 Bf5 12.Re1=; D) 8...c6 9.Bd3 Bf5 10.Bf5 Nf5 11.Qf3 Ne7 12.Ne2=.

    7.Nd2 Ne7 8.c4 dc4 (8...0-0 9.c5 (9.Bd3 dc4 10.Nc4 Nd5 11.Qh5 g6 12.Qf3=) 9...Bf4 10.Bd3 Re8 11.Ne2 Bg4 12.0-0+=; 8...Bf4 9.c5 (9.Qe2 Kf7 10.Qh5 Ng6 11.Ne2 Bh6 12.cd5+=; 9.Qh5 Bf7 10.Qg4 Ng6 11.c5 0-0 12.Bd3=) 9...Bf5 10.Qh5 Kd7 11.Ne2 g6 12.Qf3=) 9.Nc4 (9.Bc4 Bc4 10.Nc4 0-0 11.Qb3 Kh8 12.Nf3=; 9.Qh5 g6 10.Qb5 Nbc6 11.Nc4 a6 12.Nd6+=) 9...Nd7 (9...0-0 10.Bd3 Nd5 11.Qc2 f5 12.Ne2=) 10.Nd6 cd6 11.Bd3 Nb6 (11...a5 12.Nh3=) 12.Nh3 (12.Rc1+=) 12...Nbd5 13.Qh5 g6 14.Qh6 Kf7 15.0-0 Rc8 16.Nf4 Nf4 17.Qf4 d5 18.Rfe1 Bf5 19.Bf1 Rc2 20.Bc1 Qd7 21.a4 Rhc8 22.b5 g5 23.Qf3 R8c3 24.Qd1 Qd6 25.Re3 Re3 26.Be3 Ng6 27.Bd3 Bd3 28.Qd3 Rc4 29.g3 (29.a5 Qb4 30.Qf5 Qb5 31.Bg5 Qc6+=) 29...Qe6 30.Kg2 a6 31.f3 ab5 32.ab5 Kg7 33.Rc1 Rc1 34.Bc1 Ne7 35.Ba3 Nf5 36.Kf2 h5 37.Qc3 g4 38.fg4 hg4 39.Qc7 Kg6 40.Qf4 Ng7 41.Bf8 Ne8 42.Qh6 Kf7 43.Bc5 Qf5 44.Ke3 Qe4 (44...Ng7 45.Kd2+=) 45.Kd2= Ng7 46.Qh8 Qb1 47.Qc8 ½–½. Niephaus,Walter – Czaya,Richard, Bad Nauheim, 1948.

    7.Nd2 Ne7 8.Bd3 A) 8...0-0 9.Qh5 (9.Ngf3 a5 10.b5 Bf5 11.Bf5 Nf5 12.0-0=; 9.Nb3 Re8 10.Nf3 Ng6 11.0-0 Nf4 12.Nc5=; 9.c4 dc4 10.Nc4 Nd5 11.Qc2 f5 12.Ne2=; 9.Qe2 Bf7 10.Qf3 a5 11.b5 Qe8 12.Ne2=) 9...g6 10.Qe2 Qd7 11.Ngf3 Nbc6 12.b5=; B) 8...a5 9.ba5 (9.b5 0-0 10.Ngf3 Bf5 11.Bf5 Nf5 12.0-0=; 9.Bc3 ab4 10.ab4 Ra1 11.Qa1 Bf5 12.Bf5=; 9.Qe2 Bd7 10.b5 0-0 11.Qh5 f5 12.Ngf3=) 9...0-0 10.Ngf3 Ra5 11.0-0 Bf5 12.Bf5=.

    7.Nd2 Ne7 8.Qe2 A) 8...Qc8 9.c4 (9.0-0-0 0-0 10.Re1 Bg4 11.Ngf3 a5 12.b5+=; 9.Qh5 Bf7 10.Qf3 a5 11.b5 0-0 12.c4+=; 9.Ngf3 0-0 10.Qd1 a5 11.b5 Ng6 12.Be2+=) 9...0-0 10.c5 Bf4 11.Qf3 Bh6 12.Bd3+=; B) 8...Kd7 9.0-0-0 (9.Qh5 Kc8 10.c4 Ng6 11.c5 Bf4 12.Ne2+=; 9.Qf3 Kc8 10.c4 Re8 11.Be2 dc4 12.Nc4+=) 9...Bf5 10.g4 Bg6 11.h4 h5 12.Ngf3=; C) 8...Qd7 9.Qh5 (9.0-0-0 0-0 10.Re1 Bf5 11.Nb3 Re8 12.Nf3+=; 9.Ngf3 a5 10.Ne5 Qc8 11.Nd3 0-0 12.Nf3-/+; 9.c4 0-0 10.c5 Bf4 11.g3 Bh6 12.f4+=) 9...Bf7 10.Qf3 0-0 11.c4 Re8 12.c5+=.

    7.Nd2 Ne7 8.Qf3 A) 8...0-0 9.c4 (9.Bd3 Qd7 10.h3 a5 11.ba5 Ra5 12.c4+=) 9...Re8 10.c5 Ng6 11.0-0-0 Bf8 12.h4=; B) 8...c6 9.Bd3 (9.c4 dc4 10.Bc4 Bd5 11.Bd5 Nd5 12.Ne2=; 9.Qe3 Bf5 10.Bd3 Bd3 11.Qd3 a5 12.ba5+=) 9...0-0 10.Ne2 Qd7 11.h3 a5 12.ba5=; C) 8...Qd7 9.Be2 0-0 10.c4 c6 11.c5 Bc7 12.h4+=.

    7.Nd2 Ne7 8.Ngf3 A) 8...a5 9.ba5 (9.b5 0-0 10.Bd3 Bf5 11.Bf5 Nf5 12.0-0=; 9.Bc3 ab4 10.ab4 Ra1 11.Qa1 Bf5 12.Qa4+=) 9...0-0 10.Bd3 Ra5 11.0-0 Re8 12.c4=; B) 8...0-0 9.Bd3 a5 10.b5 Bf5 11.Bf5 Nf5 12.0-0=.

    7.Nd2 Ne7 8.Qh5 A) 8...g6 9.Qf3 (9.Qe2 Kf7 10.c4 dc4 11.Qf3 c3 12.Bc3=) 9...0-0 10.c4 c6 11.c5 Bc7 12.Bd3=; B) 8...Bf7 9.Qh3 (9.Qf3 c6 10.Bd3 Qc7 11.Ne2 Bg6 12.Bg6=; 9.Qg4 0-0 10.Bd3 a5 11.ba5 Re8 12.Ne2+=) 9...a5 10.b5 Qd7 11.c4 0-0 12.Qd7=.

    7.Nd2 Nh6 A) 8.Bb5 c6 9.Be2 (9.Bd3 0-0 10.Ne2 a5 11.ba5 Qa5 12.0-0+=) 9...0-0 10.Ngf3 a5 11.b5 Qb6 12.a4=; B) 8.Qe2 B1) 8...Qe7 9.c4 (9.0-0-0 0-0 10.Re1 Re8 11.Qf3 Qf7 12.h3+=) 9...Nf5 10.c5 Bf4 11.Ndf3 g6 12.Nh3=; B2) 8...Kd7 9.0-0-0 (9.Qd1 Re8 10.Be2 g5 11.Bd3 Bf5 12.Kf1-/+) 9...Re8 10.Re1 Re7 11.Qb5 Kc8 12.Be2+=; C) 8.Bd3 C1) 8...a5 9.b5 (9.Qe2 Qd7 10.b5 0-0 11.Qf3 Nf7 12.Qh5+=; 9.ba5 0-0 10.Ne2 Ra5 11.c4 Bf5 12.Nb3=; 9.c3 0-0 10.Qc2 f5 11.Ngf3 Qf6 12.0-0=) 9...0-0 10.c4 Re8 11.Ne2 dc4 12.Nc4=; C2) 8...0-0 9.Ne2 (9.Nb3 Re8 10.Ne2 f5 11.Nc5 Bc8 12.c4=) 9...a5 10.ba5 Ra5 11.c4 Bf5 12.Nb3=; D) 8.Ngf3 D1) 8...a5 9.b5 (9.c4 ab4 10.c5 Bf4 11.ab4 Ra1 12.Ba1=) 9...0-0 10.Be2 c6 11.0-0 Re8 12.Re1=; D2) 8...Qe7 9.Be2 (9.Bb5 c6 10.Be2 a5 11.b5 0-0 12.0-0=; 9.c3 g5 10.Be2 g4 11.Ng1 Nd7 12.Rc1+=) 9...c6 10.0-0 0-0 11.Re1 Qf7 12.Bd3=; D3) 8...0-0 9.Be2 a5 10.b5 Re8 11.0-0 Nd7 12.c4=; E) 8.Qh5 E1) 8...Bf7 9.Qf3 (9.Qe2 Kd7 10.0-0-0 Kc8 11.Qf3 Re8 12.Bd3+=) 9...Qe7 10.Ne2 c6 11.Bc1 Bg6 12.c4=; E2) 8...Kd7 9.Bd3 (9.Ngf3 Re8 10.Be2 Kc8 11.Kf1 Bf8 12.Ng1+=) 9...Qe8 10.Qe2 Bf5 11.Bf5 Nf5 12.c4=; F) 8.Qf3 0-0 9.Bd3 (9.0-0-0 c6 10.Re1 Bg4 11.Qd3 a5 12.b5+=) 9...c6 10.h3 Qe7 11.Ne2 a5 12.ba5=; G) 8.c4 Qe7 (8...0-0 9.c5 Bf4 10.Bd3 Re8 11.Ne2 Bd2 12.Qd2+=) 9.c5 Bf4 10.Ngf3 0-0 11.Be2 Nd7 12.0-0+=.

    7.Be2 A) 7...a5 8.b5 Ne7 9.Nf3 0-0 10.Bd3 c6 11.Nc3=; B) 7...Nh6 8.Nf3 (8.Bc1 Nf5 9.Nf3 a5 10.b5 Nd7 11.0-0=) 8...a5 9.b5 0-0 10.0-0 Nd7 11.Re1=; C) 7...Nd7 8.Nf3 (8.Bd3 Ne7 9.Nc3 c6 10.Nf3 0-0 11.0-0=; 8.Qd2 Qe7 9.Nf3 g5 10.0-0 0-0-0 11.Bd3=; 8.Bc1 Ne7 9.Nf3 a5 10.b5 0-0 11.0-0=) 8...Ne7 9.Nc3 0-0 10.0-0 Re8 11.Re1=; D) 7...a6 8.Nf3 Ne7 9.0-0 0-0 10.Re1 a5 11.Bd3=; E) 7...Bf5 8.Nf3 Ne7 9.0-0 a5 10.b5 0-0 11.c4+=; F) 7...Ne7 8.Nf3 0-0 9.0-0 Ng6 10.Bc1 Nf4 11.Bf4=.

    7.Nf3 a5 8.b5 (8.ba5 Nh6 9.Bd3 0-0 10.0-0 Re8 11.Bc1=) 8...Bg4 9.Be2 Ne7 10.0-0 0-0 11.Re1=.

    7.Nf3 Qe7 8.Be2 Nh6 9.0-0 a5 10.b5 0-0 11.Re1=.

    7.Nf3 Ne7 8.Bd3 0-0 9.0-0 Ng6 10.g3 a5 11.ba5 Re8 (11...Ra5? 12.Qe1 Bg4 13.Qa5 Bf3 14.Nd2+–) 12.Nbd2 Nc6 13.a6 ba6 14.c4 Qd7 15.Re1 Rab8 16.Re6 Qe6 (worse is 16...Re6 17.cd5 Re7 18.dc6 Qc6 19.Rc1+–; worse is 16...Rb2 17.Re8 Qe8 18.Qa4+/–) 17.cd5 Qe7 (17...Qd5? 18.Bc4 Nce7 19.Qa4+–) 18.dc6 Rb2 19.Ba6 Rd8 (19...Ba3? 20.Nc4 Qe4 21.Na3 (21.Ra3 Rb1 22.Qb1 Qb1 23.Kg2 Qe4–+) 21...Qc6 22.Bd3+–) 20.Qc1 Rbb8 (20...Ba3? 21.Nc4 Qe2 22.Qe3+–) 21.Bb7 Qe2 22.Qc2 Qb5 23.a4 Qa5 24.Rb1 Qd5 25.Rb5 Qf7 26.a5 Ne7 27.Ne4 Nc8 28.Neg5 (worse is 28.Nd6 Nd6 29.Rb1 Qh5+/–) 28...fg5 29.Ng5 Qg6 30.Qc4 (30.Qc4 Kf8 31.Ne6 Ke7 32.Nd8 Kd8 33.Qg8 Qe8 34.Qg7+–) 1–0. Schellen,Anton – Morcin,Tom (1845), OP–2010-0-01205, 2010.

    7.Nf3 Bf5 8.Nc3 (8.Be2 Ne7 9.0-0 0-0 10.Re1 c6 11.c4=) 8...c6 9.Nh4 Be6 10.Bd3 Ne7 11.0-0+=.

    7.Nf3 Nh6 8.Bd3 0-0 9.0-0 Re8 10.Re1 c6 11.Nbd2 Bf5 12.Be2 a5 (13.b5 cb5 14.Bb5 Re1 15.Ne1 Qc7=). lidl4 – Hawk, Live Game Caissa's Web, 2004.

    7.Bd3 Ne7

    8.Qe2 Qd7 9.Nf3 0-0 10.0-0 Re8 11.Re1=.

    8.Ne2 0-0 9.0-0 a5 10.b5 Qd7 (10...f5 11.Nd2=) 11.Ng3 (11.Re1=) 11...f5 12.Nd2 f4 13.Ne2 Bf5 14.Nf3 Be4 15.Nc3 Qf5 16.Re1 Bd3 17.Qd3 Qd3 18.cd3 Nd7 19.Na4 c6 20.bc6 Nc6 21.Ne5 Nf6 22.Nc6 bc6 23.Rac1 Rfe8 24.Re8 Re8 25.f3 ½–½. Schulz,Hans_Juergen – Zmolil,Josef, TT–12.21 ETC, 2004.

    8.Ne2 a5 9.b5 c6 10.0-0 cb5 11.Nec3=.

    8.Nf3 a5 9.b5 Ng6 10.Bc1 Nf4 11.Bf4=.

    8.Nf3 0-0

    9.0-0 Re8 10.Nc3 Ng6 11.Bg6 hg6 12.Qd3 Nc6 13.Qg6 a5 14.b5 Ne7 15.Qd3 Bf4 16.g3 ½–½.

    9.0-0 Re8 10.Qd2 Ng6 11.Re1 c6 12.g3 Bg4 13.Re3 a5 14.b5 Re3 15.Qe3 cb5 16.Bb5 ½–½.

    9.0-0 Re8 10.Nbd2 Ng6 11.Nb3 Nf4 12.Re1 Nd7 13.Nc5 Nc5 14.dc5 Bf8 15.Qd2 Nd3 16.cd3 ½–½.

    9.0-0 Re8 10.Re1 Bg4 11.c4 c6 12.Nbd2 dc4 13.Bc4 Nd5 14.Qc2 Be6 15.Ne4 b5 16.Bd3 g6 17.Nc5 Bf7 18.Nb7 Re1 19.Re1 Qf8 20.Nd6 Qd6 21.Nd2 a5 22.ba5 Ra5 23.Ne4 Qf8 24.f3 ½–½. JFRAY – Clay56, ChessWorld.net, 2011.

    9.0-0 Re8 10.h3 a5 11.Re1 Ng6 12.Nc3 Nf4 13.b5 Nd7 14.a4 Nb6 15.Qd2 Qe7 16.Ba3 ½–½.

    9.0-0 Re8 10.h4 a5 11.ba5 Nbc6 12.Re1 Bg4 13.Nbd2 Nf5 14.a6 ba6 15.Re8 Qe8 16.Qb1 ½–½.

    6.Bd4 Bd6

    7.Nd2 Nc6 8.Bb5 Nge7 9.c4 0-0 10.Bc6 Nc6 11.c5 Nd4 12.cd6 Re8 13.dc7 Qc7 14.Rc1 Qb6 15.Ngf3 Bg4 16.0-0 Nf3 17.Nf3 Rad8 18.h3 Bf3 19.Qf3 d4 20.ed4 Rd4 21.Rc5 Rde4 22.Qc3 h6 23.Rc7 R4e7 24.Re7 Re7 25.Rd1 Qe6 26.Qg3 a6 27.Qg6 Rd7 28.Rc1 Qe7 29.Qf5 Rc7 30.Rd1 Kf7 31.h4 Qe5 32.Qf3 h5 33.g3 g6 34.Kh2 Re7 35.Kg1 Qe2 36.Qd5 Qe6 37.Qd8 Re8 38.Qc7 Re7 39.Qf4 Kg7 40.a4 Qc6 41.a5 Re4 42.Qd2 Qe6 43.Rc1 Qe7 44.Rc8 Re2 45.Qc3 Qf7+= 46.Qc5 Re7 47.Kh2 Re5 48.Qd6 Rd5 49.Qb6 Rd7 50.Qe3 Qe7 51.Qf4 Qe5 52.Qc4 Rf7 53.Rd8 Qc7 54.Qd5 Qe7 55.Qd4 Qe5 56.Qd2 Qb5 57.Qd6 Qe5 58.Qd3 Qe7 59.Qd4 Qe5 60.Qa7 Qe2 61.Rb8 Qf3 62.Qd4 Qe2 63.Kg2 Qe7 64.Rd8 Qc7 65.Rd6 Qe7 66.Qd2 Qc7 67.f3 Qc4 68.Rd4 Qc6 69.g4 hg4 70.Rg4 Rd7 71.Qe2 Qd5 72.Re4 Kf7 73.Kf2 f5 74.Rc4 Re7 75.Qa2 Qe6 76.Rc2 Qa2 77.Ra2 Re5 78.Rd2 Ke7 79.Kg3 Rb5 80.Rd4 b6 81.ab6 Rb6 82.Kf4 Kf6 83.Rc4 Rd6 84.Ke3 g5 85.hg5 Kg5 86.Rc8 Rb6 87.Rc4 Rb5 88.Kd3 a5 ½–½. Hecimovic,Ivan (2230) – Stipic,Marko, Zadar op, 1998.

    7.Bd3 Ne7 8.Qh5 Bf7 9.Qg4 Bg6 10.Nf3=.

    7.Nf3 Nc6 8.Bd3 Nge7 9.Nc3 Bg4 10.h3=.

    7.Nf3 Ne7

    8.Nbd2 0-0 9.c4 Nbc6 10.Bd3 Qd7 11.Qc2 Bf5 12.Bf5 Nf5 13.Bb2 (worse is 13.cd5 Ncd4 14.ed4 Rfe8 15.Kf1 a5 16.ba5 Ra5+=) 13...dc4 14.Qc4 Kh8 15.0-0 a6 16.Ne4 Rad8 17.Rad1 Qe7 18.Nc5 b5 19.Qg4 Bc5 20.Rd8 Rd8 (20...Rd8 21.Qf5 Bd6+=). Popstein,Sheila – Johansson,Mats, IECG, 2004.

    8.Nbd2 0-0 9.Bd3 Nbc6 10.c4 Qe8 (10...Ne5 11.Be5 Be5 12.Ne5 fe5 13.cd5 Bd5 14.Qc2+=) 11.Qc2 Qh5 12.b5 Nd4 13.Nd4 Bf7 14.c5 Be5 15.N2f3 g5 (15...a6 16.ba6 (worse is 16.Ne5 fe5 17.Be2 Qh6+=) 16...ba6 17.Rb1+=) 16.Ne5 (16.c6 b6+=) 16...fe5= 17.Nf5 Nf5 18.Bf5 g4 19.e4 c6 20.Qe2 de4 21.Be4 Bd5 22.bc6 bc6 23.0-0 Rf6 24.Rae1 Rd8 25.Qd3 Rh6 26.Qg3 Qh4 ½–½. Benussi,Alberto – Johansson,Mats, Orangutan Cup, 2005.

    8.Nbd2 Nbc6 9.Bb2 (9.Bd3 a5 10.b5 Nd4 11.Nd4 Qd7=) 9...a5 10.b5 Ne5 11.Be2 0-0 12.0-0 N7g6 (12...Qd7 13.Nd4=) 13.Nd4 Bf7 (13...Qc8 14.c4=) 14.Nf5+= Bc5 (14...Ne7 15.Nd6 Qd6 16.Bc3+=) 15.Nb3 Bb6 16.a4 (16.Bd4 Bd4 17.Nbd4 Re8+=) 16...Re8 17.Bd4 Bd4 18.Nfd4 Qe7 19.Qd2 b6 20.Rfe1 (20.Rfd1 Rad8+=) 20...Nc4= 21.Bc4 dc4 22.Nc6 Qe4 23.f3 Qh4 24.Nbd4 Ne5 25.e4 Bg6 (25...Nc6 26.Nc6 (worse is 26.bc6 Rad8=) 26...Be6 27.Rad1+=) 26.Rad1 Nf7 (26...Bf7 27.Nf5 Qh5 28.Ne5 fe5 29.Qc3+/–) 27.Ne2 (27.Qf2 Qh5+/–) 27...f5 (27...Ne5 28.Ne7 Kh8 29.Ng6 hg6 30.Rf1+/–) 28.ef5 (28.Qf4 Qh5 29.e5 Kh8+–) 28...Bf5 29.Ng3 (better is 29.Qd4 Qd4 30.Ned4+/– (worse is 30.Rd4 Bc2 31.Rc4 Bd3–+; 30.Ncd4?! Rad8+=)) 29...Nd6?? (29...Bg6 30.Qd7 Kf8 31.Nd4+/–) 30.Nf5 (30.Qd5 Kh8 31.Qd4 Re1 32.Re1 Qd4 33.Nd4+=) 30...Nf5+= 31.Qd5 Kh8 Threatening mate... how? 32.Re4 Re4 33.Qe4 (worse is 33.fe4 Ne3 34.g3 Qf6=) 33...Qg5 34.Ne5 (34.Na5 Qe3 35.Qe3 Ne3=) 34...Qe3 35.Qe3 Ne3 36.Rd4 (36.Rd7 Re8+/–) 36...c3+– 37.Rd3 Nc2 38.Rc3 Nd4 39.Rc7 h6? (better is 39...Re8+–) 40.Nd7 Re8 41.Nb6 Re2 (41...Re1 42.Kf2 Re2 43.Kg3 Nf5 44.Kh3+–) 42.Nd7 Nf5 (42...Ne6 43.Ra7 Kh7 44.b6+– (worse is 44.Ra5 Nf4+–)) 43.b6 Ne3 (43...Rd2+–) 44.b7 (44.b7 Rg2 45.Kh1+–) 1–0. Kosikov,Alexey I (2420) – Zhizmer,Yuri (2260), Kiev–ch, 2002.

    8.Bd3 0-0 9.Nbd2 Nbc6 10.c4 Ng6 11.0-0 A) 11...Be5 A1) 12.Rc1 Bd4 (12...Rf7 13.cd5 Bd5 14.Bg6 hg6 15.Be5 Ne5 16.Ne5 fe5) 13.ed4 Nf4 14.Qc2 Nd3 15.Qd3 Qd7 16.b5 Ne7; A2) 12.cd5 Qd5 13.Ne5 fe5 14.Be4 Qd7 15.Bc3 Rad8 16.Qc2 Bd5; A3) 12.g3 Qd7 13.Bg6 hg6 14.Be5 Ne5 15.Ne5 fe5 16.Nf3 dc4; A4) 12.Qc2 Bd4 13.Nd4 Nd4 14.ed4 Qd6 15.c5 Qf4 16.Rfe1 Rfe8; B) 11...Qd7 12.c5 (12.Qc2 f5 13.cd5 Bd5 14.Bc4 Be5 15.Nb3 Bc4 16.Qc4 Qf7) 12...Nd4 13.Nd4 Be5 14.Qc2 f5 15.N2f3 Rae8 16.Rfe1 Bd4.

    8.Bd3 0-0 9.Nbd2 Nbc6 10.c4 Ng6 11.Qc2 a5 A) 12.c5 Be7 (12...Be5 13.b5 Nd4 14.ed4 Bf4 15.0-0 Qd7 16.g3 Bh6) 13.b5 Nce5 14.Ne5 fe5 15.Bg6 hg6 16.Be5 Bf5; B) 12.b5 Nce5 13.Be5 fe5 14.Bg6 hg6 15.0-0 Qe8 16.c5 Be7.

    8.Bd3 0-0 9.Nbd2 Nbc6 10.c4 Ng6 11.Qc2 Qe7 A) 12.0-0 Qf7 (12...b6 13.cd5 Bd5 14.e4 Nd4 15.Nd4 Bf7 16.Nc4 Bf4) 13.c5 Be5 14.b5 Nd4 15.ed4 Bf4 16.g3 Bh6; B) 12.c5 Be5 13.0-0 Qf7 14.b5 Nd4 15.ed4 Bf4 16.g3 Bh6.

    8.Bd3 0-0 9.Nbd2 Nbc6 10.c4 Ng6 11.Qc2 Qe8 12.c5 (12.0-0 dc4 (12...Qf7 13.cd5 Bd5 14.Ne4 Be5 15.g3 Rfe8 16.Rfe1 Rad8; 12...Rd8 13.c5 Be7 14.h3 Ra8 15.Bc3 Qf7 16.Nd4 Nd4) 13.Nc4 Be7+= (13...Qf7 14.Rad1 Rfd8 15.Bb2 Bh2 16.Kh2 Rd3) 14.b5 Nd4 15.Nd4 Bd5 16.Be4 Qf7) 12...Nd4 (12...Be5 13.0-0 a6 14.Rfe1 Rd8 15.h3 Qf7 16.Rab1 Rfe8) 13.Nd4 Be5 14.N2f3 (14.0-0 Bf7+= (14...Bd7 15.N2f3 Bg4 16.Rab1 Qf7) 15.N2f3 Be6 16.h3 Bd7) 14...Kh8 (14...Bg4 15.Bg6 (15.Ra2 Qd7 16.0-0 Bf3) 15...hg6 16.Rd1+= (16.Rb1 a5) 16...a5) 15.Rb1 (15.Bg6 hg6 16.c6 (16.0-0 Kg8) 16...bc6 17.Ne5 fe5 18.Nc6 Bd7+/–; 15.h3 Kg8 16.0-0 Bd7) 15...Bg8 (15...Bf7 A) worse is 16.Ne5 fe5 (worse is 16...Qe5 17.0-0+/–) 17.Nf5 Be6=; B) 16.0-0+= Qe7; 15...Bd4 16.Nd4 Bd7) 16.Bg6+/– (16.c6 b6) 16...hg6 17.0-0 (17.c6 b6+/–) 17...Bh7 (17...g5 18.Qd2+= (18.Ne5?! fe5 19.Nf5 Bh7=)) 18.Rbd1 (worse is 18.Ne5 fe5 19.Nf3 g5-/+) 18...g5 19.Qc3 Be4 (19...g4 20.Ne5 fe5 21.Ne2+=) 20.Ne5 fe5 21.Ne2 (21.Nb3 Qe6 22.Nd2 Bg6+=) 21...c6 (21...Rd8 22.f3 Bg6 23.Ng3+=) 22.Ng3 Bg6 23.Qd2 (23.e4 Rd8+=) 23...g4 (23...Rd8+=) 24.f3 (better is 24.e4!? d4 25.Qe2+=) 24...gf3+= 25.gf3 Qe6 26.Rf2 (26.e4 Rad8=) 26...Rf6 27.Rdf1 Raf8 (27...Re8 28.a4+=) 28.f4= ef4 29.Rf4 Rf4 30.Rf4 Re8 (30...Rf4 31.ef4 Be4 32.Qe2=) 31.Kf2 (31.Rf3 Kg8=) 31...Kg8 32.Qd4 Re7 33.Rf3 Qh3 (33...Be4 34.Ne4 Qe4 35.Kg3+=) 34.Nf1 (34.Kg1 Be4 35.Rf2 Re8+=) 34...Qh5 (34...Qd7 35.Ke1+=) 35.Rf4 (35.Qf4 Kh7 36.Nd2 Rf7=) 35...Be4 (35...Re4 36.Qd2+=) 36.h4 (36.Ke1!?+=) 36...Rf7-/+ 37.Rf7 (37.Ke1 Rf4 38.ef4 Qh4 39.Qf2 g5 40.fg5 Qg5-/+) 37...Qh4 (37...Kf7 38.a4–+) 38.Ke2 Kf7 (38...Qh5 39.Rf3 Qf3 40.Ke1–+) 39.Qe5-/+ Qg4 (39...Kg6 40.Qd6 Kh7 41.Qf4-/+) 40.Ke1 Qe6 (40...Qf3 41.Qf4 Qf4 42.ef4-/+) 41.Qc7 (41.Qb8 Qe7-/+) 41...Qe7 42.Qf4 Kg6 (42...Ke6 43.Ng3 g5 44.Qb8-/+) 43.Ng3 Qg5 44.Qf2 (44.Kd2 Qf4 45.ef4 Kf6-/+) 44...Bd3 (44...Qe5 45.Ne4 de4 46.Qd2-/+) 45.Kd2 Bc4 46.Qf4 (46.Qf3 Qe5-/+) 46...Qf4 47.ef4 b6 (47...Kf6 48.Nh5 Kf7 49.Ke3-/+) 48.Ke3 (48.cb6 ab6 49.a4 Kf6-/+) 48...Kf6 (48...bc5 49.bc5 Kf6 50.Nh5 Kf7 51.Ng3-/+) 49.Kd4 (49.Nh5 Kf7-/+) 49...g6 50.Ke3 (50.a4 b5 51.ab5 Bb5-/+) 50...bc5 51.bc5 Ke6 (51...a6 52.Nh1-/+) 52.Kd4 a5 53.Kc3 (better is 53.Ke3-/+) 53...Ba2 (53...Kf6 54.Kd4-/+) 54.Kd4 (54.Kb2 Bc4 55.Kc3-/+) 54...Bb1 (54...Kf6 55.Ne2 Bc4 56.Ng1-/+) 55.Kc3+= Bf5 56.Ne2 Bg4 (56...Kd7 57.Kd2+=) 57.Nd4 Kd7 58.Nb3 Bd1 (58...a4 59.Nd4 Kc7=) 59.Nd4 (59.Na5!? Kc7 60.Kd3=) 59...Ba4+= 60.Kd3 Ke7 61.Ke3 Kf6 62.Kf3 (62.Nf3 Bb5+=) 62...Kg7 (62...g5!?-/+) 63.Kg4= Kf6 64.Kf3 Bb5 (better is 64...g5!?-/+) 65.Ke3= g5?? (better is 65...Ke7=) 66.fg5+– Kg5 67.Nb5 cb5 (67...Kf6 68.Na7 a4+–) 68.c6 b4 69.ab4 (69.ab4 ab4 70.c7+–) 1–0. Kostrov,Yaroslav (2020) – Eltsov,Valery (2120), Autumn Open, St Petersburg RUS (8), 2005.

    8.Bd3 0-0 9.Nbd2 Nbc6 10.c4 Ng6 11.Bg6 hg6 12.c5 Be5+= (12...Be7 13.0-0 Qd7 14.h3 g5 15.Re1 Rfe8 16.Qc2 Bf5) 13.Be5 Ne5 14.0-0 b6 15.Ne5 fe5 16.Rc1 Rc8.

    8.Bd3 Nbc6 =.

    8.Be2 0-0 9.0-0 a5 10.c3 Nbc6 11.Nbd2 Nf5 12.e4? (better is 12.b5!? Ncd4 13.cd4=) 12...Nfd4-/+ 13.cd4 ab4 14.ab4 Ra1 15.Qa1 Bb4 16.Nb3?? (better is 16.ed5 Bd5 17.Rb1-/+) 16...de4–+ 17.Nfd2 Bd2 18.Nd2 Nd4 19.Re1 (19.Bd1 f5 20.Qc3–+) 19…Nc2 (19...Nc2 20.Qc1 Ne1 21.Qe1 Qd4–+; 19...Ne2?! 20.Re2 f5 21.Qc3–+) 0–1. Reussner,Hans Dieter – Haluschka,Rainer, DESC, 2006.

    5.d4 Bd6

    6.c4 dc4 7.Nf3 Nd7 8.d5 Bf7 9.Bc4 a5 10.ba5 Ra5 11.Qd2 Rc5 12.Ba2 (12.Bb3!?=) 12...Nb6+= Pawn d5, live or die! 13.Nc3 Nd5 14.Ne4 Rc6 15.0-0 (15.Bd5? Bd5 16.Nd6 Qd6–+) 15...Nge7 16.Rfc1 Rb6 17.Rab1 0-0 18.Qd3 Qa8 19.Bc4 (19.Nd6 Rd6 20.Rc7 e4 21.Qe4 Nc7 22.Qe7 Ba2 23.Qd6 Bb1 24.Qc7 Qa4-/+) 19...Kh8 20.Nd6 Rd6 (worse is 20...cd6 21.Qd2+=) 21.Qc2 Bg6 22.e4 Nf4 23.Nh4 Be8 24.Bf1 Bc6 25.Bc3 b6 (25...Qa3?! 26.Bb4 Qa7 27.g3=) 26.Bb4 Rd7 27.Re1 Ne6 (27...Ba4 28.Qc4 c5 29.Bc3-/+) 28.Bc4 (28.Nf3 Re8-/+) 28...Nd4–+ 29.Qd3 Ndf5 30.Qh3 Nh4 31.Qh4 Ng6 32.Qg4 Rfd8 33.Rbc1 Rd4 34.Bf1 Qb7 35.Rc4 Bd7 36.Rd4 ed4 (36...Bg4?? 37.Rd8 Nf8 38.Rf8) 37.Qd1 c5 38.Bd2 Bc6 39.Qb1 (39.Qc2 d3! 40.Qc3 Qf7–+) 39...d3! 40.Re3 (40.Bd3 Ne5 Decoy) 40...c4 (40...Be4?! 41.f3 Bd5 42.Qd3-/+) 41.Qb4 b5 42.a4 ba4 (42...Be4?! 43.ab5 Bd5 44.b6–+) 43.Qc4 Ne5 44.Qc5 Be4 45.f4 Ng4 46.Re1 f5 47.Ra1 (47.Rc1 Nf6–+) 47...Qd7 48.Rc1 Ra8 49.h3 Nf6 50.Rc3 (50.Bb4 Kg8–+) 50...h6 51.Kh2 (51.h4 Kh7 52.Kh1 Ng4–+) 51...Rb8 52.Rc1 (52.Qa3 Kh7 53.Bd3 Rd8 54.Be4 Ne4–+ (54...fe4?! 55.Be1–+; 54...Qd2?! 55.Bf5 Kh8 56.Rc4=)) 52...Rb2 53.Bc3 (53.Be3 Ra2 54.Qa5 a3–+) 53...Rc2 54.Rc2 dc2 55.Bb2 (55.Bf6 gf6 56.Be2 Kg7–+) 55...Kh7 56.Bf6 (56.Qe3 Nd5 57.Qd2 Qb7–+) 56...gf6 57.Be2 Kg6 58.Qc4 (58.h4 h5 59.Bb5 c1Q 60.Qc1 Qb5–+) 58...h5 59.h4 (59.Qg8 Qg7 60.Qc8–+) 59...Qe8 60.Bf3 (60.Qc7 Bc6 61.Bh5 Kh5 62.Qh7 Kg4 63.Qg7 Kf4 64.Qf6 Qe4 65.Qg5 Ke5 66.Qg7 Kd5–+) 60...Bd3! 61.Qd3 (61.Qc5–+) 61...c1Q 62.Bh5 Kh5 63.Qf5 Kh6 64.Qf6 Kh7 65.Qf5 Kg7 66.Qg4 Kf8 67.Qg5 a3 68.Qf6 Kg8 69.Qg5 Kh7 70.Qf5 Qg6 71.Qd7 Kh6 72.Qd4 Qb2 73.Qd5 (73.Qg1 Qg4 74.Qf1 Qh4 75.Kg1 Qd4 76.Qf2 Qdf2) 73...Qf2 0–1. condoru (2085) – marekt (2140), gameknot.com, 2014.

    6.Nd2 c6 7.c4 Nd7 8.cd5 cd5 9.Bb5 =.

    6.Nd2 c6 7.c4 Ne7 8.c5 Bc7 9.Nb3 (9.de5 fe5 10.Ngf3 Ng6=) 9...0-0=+ 10.Nf3 e4 11.Nfd2 f5 12.g3 Nd7 13.Bg2 Nf6 14.0-0 g5 (14...Qe8 15.a4-/+) 15.Nc1 (15.f4 gf4 16.ef4 Qe8=) 15...Ng6 (15...f4 16.ef4 gf4 17.Qe2-/+) 16.Ne2 f4 17.ef4 gf4 18.gf4 (18.f3!? e3 19.Nb1=+) 18...Nf4 19.Nf4 Bf4 20.Bc1? (20.f3!? Qc7 21.Kh1=+) 20...Qc7 (20...Bh2 21.Kh2 Ng4 22.Qg4 Bg4–+) 21.h3 Qg7 22.Kh1 Qh6 23.Ne4? (23.Nb1 Bh3 24.Bf4 Bg2 25.Kg2 Qf4 26.Qb3–+) 23...Ne4 24.Bf4 Rf4 25.f3 (25.Qd3–+) 25…Ng3 (26.Kg1 Rd4–+; 25...Bh3 26.Re1 Nf2 27.Kh2 Qg7 28.Re8 Re8 29.Qf1 Rf3 30.Bf3 Bf1 31.Rf1 Re6 32.Bg2 Rh6 33.Kg1 Nh3 34.Kh2 Nf4 35.Bh3 Rh3#) 0–1. slavisa3 – procyk, Live Game Caissa's Web, 2004.

    6.Nd2 c6 7.c4 Nh6 8.Qb3 (8.de5 fe5 9.Ngf3 Nf7=) 8...0-0 9.Bd3 (9.cd5 cd5 10.Ngf3=) 9...e4 (better is 9...Nf7!?+=) 10.cd5+/– Bd5 11.Bc4 Kh8 12.Bd5 cd5 13.b5 (13.Qd5!? Bb4 14.Qb7 Bd2 15.Kd2+/–) 13...Bc7= 14.Ne2 f5 (14...Nf5 15.Rc1=) 15.g3 (15.Nc3!?+=) 15...Ng4= 16.a4 Nf6 17.Ba3 Re8 18.h4 (18.0-0 a6=) 18...Nbd7 19.Bb4 White prepares the advance a5 19...Nf8 20.a5 Ne6 0–1. Krivoshapko,Alexander – Tolkachiov,Vladimir, 2011.

    6.Nd2 c6 7.de5 fe5 8.Be5 Nf6 9.Bd6 Qd6 +=.

    6.Nd2 Nc6 7.b5 Nce7 8.c4 ed4 9.Bd4 =.

    6.Nd2 ed4 7.Bd4 Nc6 8.Ngf3 =.

    6.Nd2 Ne7 7.c4 c6 8.de5 Be5 9.Be5 fe5 10.Ngf3 Ng6 11.Be2 0-0 12.0-0 Nd7 13.Rc1 Rc8 14.Nb3 Nf6 15.Nc5 Qe7 16.Ne6 Qe6 17.cd5 cd5 18.Qb3 Kh8 19.Ng5 Qf5 20.Rc8 Qg5?? 21.Rf8 Nf8 22.Qc3 Qf5 23.Qc7 Qd7 24.Qe5 Ng6 25.Qb8 Ng8 26.Qa7 Ne5 27.Qd4 Nc6 28.Qb2 Nf6 29.Bb5 Qd6 30.Rd1 Ng4 31.g3 Nce5 32.Be2 Nf6? 33.Qb3 Nfg4 34.Rd5 Qh6 35.Rd8 1–0. Loulou – MindenFele, playchess.de, 2003.

    6.de5 Be5 7.Be5 fe5 8.Qh5 g6 9.Qe5 Qf6 10.Qc7?? Qa1–+ 11.Bb5 Nc6?? (11...Nd7 12.Kd2 Qb1–+) 12.Bc6-/+ bc6 13.Qc6 Ke7 14.Qc5?? (better 14.Qa8 Qb1 15.Ke2 Qc2 16.Ke1–+) 14...Kf7 15.Qc7 (15.Qd4 Qb1 16.Qd1 Qb2–+) 15...Ne7 16.Qf4 Nf5 17.Qc7 Kf6 (better 17...Ne7 18.Qf4 Bf5–+) 18.Qc3 Qc3 19.Nc3 Rac8 (19...d4 20.Ne4 Ke7 21.ed4 Nd4 22.c3 Nc2 23.Kd2–+) 20.Nge2 Nd6 21.0-0 Ne4 Black gets the initiative 22.Ne4 de4 23.Nd4 Rhd8 24.Rc1 (24.f3 ef3 25.Rf3 Ke5–+) 24...Rc3 25.Nb5? (25.Ra1 Bc4–+) 25...Rc6 (better 25...Rc2! 26.Ra1 Rdd2–+) 26.Nd4 Ra6 27.Ra1 Rb6 (27...Rb8 28.c3–+) 28.f3 ef3 29.gf3 Rd4 (better 29...Rc8!?–+) 30.ed4-/+ Bd5 (30...Rc6 31.Rc1-/+) 31.Kf2 (31.c3 Rc6 (31...Bf3? 32.Rf1+–) 32.Rc1 Kg5-/+) 31...Kf5 (better 31...Rc6!? 32.Rc1 Rc3-/+) 32.Re1= Re6 33.Re3 Rc6 (33...Kf4!? 34.Re6 Be6=+) 34.Re5+= Kf6?? (better 34...Kf4 35.Rd5 Rc2 36.Ke1 Rh2+=) 35.Rd5+– Rc2 36.Ke3 Rc3 37.Ke4 Ra3 38.Rd6 (better 38.Ra5!? Rb3 39.Ra6 Kg5 40.Ra7 h5+–) 38...Ke7 39.Kd5 (39.Rc6 Kd8+–) 39...Rf3 (better 39...a5 40.b5 Rb3+–) 40.Kc6?? (40.Ra6 Rf5 41.Kc4 Rh5 42.Ra7 Kd6+–) 40...Rb3 (better 40...Rc3!? 41.Kd5 Rf3=) 41.b5 (41.Rd7!? Kf6 42.b5 Rc3 43.Kd5+–) 41...Rc3+– 42.Kd5 Rb3 43.Re6 (43.Ra6 Rb5 44.Kc6 Rb6 45.Rb6 ab6=) 43...Kf7 (43...Kd7 44.Kc4 Rb5 45.Kb5 Ke6 46.Kc6=) 44.Kd6+= Rb5 ½–½. sirgeshdb – chess_uff, lichess.org, 2020.

    6.de5 Be5 7.Be5 fe5 8.Qh5 g6 9.Qe5 Qf6 10.Nf3 Nd7 11.Qf6 Ngf6 12.Bd3 a5 13.c3 (13.Nd4 Kf7 14.b5 Nc5+=) 13...c5 14.Ng5 Bg4 15.h3 Ne5 16.Bc2 Bf5 17.Bf5 gf5 18.Ne6 ab4 19.Nc7 Kd7 20.Na8 Ra8 21.cb4 cb4 22.a4 b3 23.Ra3 b2 24.Ke2 Nc4 25.Rb3 Ra4 26.Rb7 Kc6 27.Rb3 Ne4 28.Rd1 Ra1 29.h4 h6 30.h5 Ra8 31.Rbd3 Ra1 32.g3 (32.Rd5 Rb1 33.Rd6 Ncd6 34.Rb1 Nc3 35.Kd3 Nb1–+) 32...Ra2 33.Ke1 Ra5 34.Rb3 Ra8 35.Rb4 Nc5 36.Kf1 Ra1 37.Ke2 Ne4 38.Rb3 Ra2 39.Rbd3 Nb6 40.Rb3 Na4 41.Kf3 Nb6 42.Kf4 Nc4 43.f3 Nc5 44.Rc3 Ra1 45.e4?? (better is 45.Kf5 Na4 46.Rb3=) 45...fe4–+ 46.fe4 Ne4 47.Rc4 dc4 48.Ke4 Kc5 49.g4?? (better is 49.Rf1=) 49...Kb4–+ 50.g5 c3 (50...hg5 51.h6 Passed pawn) 51.Kd3 (51.gh6?? c2 52.Rd4 Kc5–+) 51...Kb3 52.gh6 (52.g6 Ra7 53.Rg1 Rd7 54.Ke2–+) 52...Ra7 53.Nc3 Rd7 54.Ke4 (54.Ke2 Rd1 55.Nd1–+) 54...Rd1 55.h7 Rd8 56.Nb1 Rh8 57.Kf5 Rh7 58.Kg6 Ra7 59.h6 Kc2 60.h7 Rh7! (60...Rh7 61.Na3 Kb3 62.Kh7 Ka3–+) 0–1. vulpecula (2115) – marekt (2095), gameknot.com, 2014.

    6.de5 fe5

    7.Nf3 Nd7= 8.Be2 Ngf6 9.0-0 a5 10.ba5 (10.Nc3 c6 11.Ng5 Qe7=+) 10...Ra5=+ 11.Ng5 Qe7 12.Ne6 Qe6 13.Nc3 c6 14.h3 (14.Nb1 b5-/+) 14...0-0-/+ 15.Qd2 Rfa8 16.a4 Bb4 17.Qd3 Nc5 18.Qd1 R5a7 (18...Na4?! 19.Na4 b5 20.Nc3 Ra1 21.Ba1=) 19.Na2 Na4 20.Nb4 Nb2 21.Ra7 Ra7 22.Qb1 (22.Qc1 Na4-/+) 22...Na4 23.Qa2 Ne4 24.Bg4 Qd6 25.c4? (better 25.Nd3-+) 25...Qb4 26.cd5 Nec3 27.Qd2 (27.Qc2 cd5 (27...Nd5?! 28.Be6 Kh8 29.Bd5-/+) 28.Qf5 Ra8 29.Qe5 b5-+) 27...Nd5 28.Be6 Kh8 29.Qc2 Ndc3 30.Rc1 (30.Qf5 Qd6-+) 30...b5 31.Qf5 (31.Bb3 Qa3 32.Kh2-+) 31…Ne2 (31...Ne2 32.Kh2 Nc1-+) 0-1. kianas (2080) - Clay56 (2480), ChessWorld.net, 2012.

    7.Be5 Nf6

    8.Bb5 c6 9.Bd6 Qd6 10.Bd3 Nbd7 11.Nf3 Ne5 12.Nbd2 0-0+=.

    8.Bb5 c6 9.Bd6 Qd6 10.Be2 0-0 11.Nd2 Nbd7 12.Ngf3 Ne5 13.Nb3 Ne4 14.h3 (the game was ended here) (14.Bd3 Rf3 (14...Nc3 15.Qd2 Nf3 16.gf3 Na4 17.f4 Nb2 18.Qc3+=; 14...Nf3 15.gf3 Nf6 16.f4 Bf7 17.Nd4 Rae8 18.Qf3+=) 15.Be4 Rf6 16.Qd4 Ng4 17.Bf3 Nh2 18.Be2=) 14...Bf5 (possible continuation (14...Nf3 15.Bf3 Bf5 16.Nd4 Bg6 17.0-0 Rae8 18.Qe2+=; 14...b6 15.Qd4 Nf3 16.Bf3 c5 17.bc5 bc5 18.Qa4=; 14...Qe7 15.Qd4 Nf3 16.Bf3 Nd6 17.Be2 Qg5 18.Bg4+=) 15.Qd4 (15.Nbd4 a5 16.ba5 Ra5 17.Qc1 Nc3 18.Ne5=) 15...Nf3 16.gf3 Ng5 17.c4 Bh3 18.cd5=. Luzuriaga,Norberto Horacio – Rehbein,Gerhard, corr SOK–98–132, 1998.

    8.Bb5 c6 9.Bd6 Qd6 10.Be2 0-0 11.Nd2 Nbd7 12.Ngf3 Ne5 13.Nb3 Nf3 14.Bf3 A) 14...Qe5 15.0-0 (15.Qd4 Qf5 16.Qd3 Qg5 17.Nd4 Rae8 18.b5+=; 15.Nd4 Rae8 16.0-0 Bf5 17.Nf5 Qf5 18.Qd4+=; 15.Rc1 Rae8 16.Qd4 Qc7 17.0-0 b6 18.Be2+=) 15...Bf5 16.Qd4 Qe6 17.Rac1 Nd7 18.Be2+/–; B) 14...Rae8 15.0-0 (15.Qd4 b6 16.c4 Bg4 17.c5 Qc7 18.Bg4+=; 15.Nd4 Qe5 16.0-0 Bf5 17.Nf5 Qf5 18.Qd4+/–; 15.Rc1 Bf5 16.Qd4 Qc7 17.0-0 Qf7 18.b5+/–) 15...Qe7 16.Nd4 Rf7 17.b5 cb5 18.Nb5+/–; C) 14...Qc7 15.Nd4 (15.0-0 Bf5 16.Nd4 Qe5 17.Rb1 Bg6 18.Qd2+=; 15.Qd4 Qf7 16.0-0 Ne4 17.Rad1 Bf5 18.Nd2+=; 15.Qd3 Nd7 16.Be2 Ne5 17.Qd4 b6 18.0-0+=) 15...Qe5 16.0-0 Rae8 17.b5 cb5 18.Nb5+/–; D) 14...Qe7 15.Nd4 (15.0-0 Bf5 16.Nd4 Be4 17.Be4 Ne4 18.Qd3+=) 15...a5 16.b5 cb5 17.Nb5 Rac8 18.Rb1+/–; E) 14...Rab8 15.c4 (15.Nd4 Rbe8 16.Ne6 Qe6 17.Qd4 b6 18.Rd1+=; 15.Qd4 b6 16.0-0 Rbd8 17.Rad1 Bf5 18.Qc3+=; 15.Rc1 Rbd8 16.Qd4 b6 17.0-0 Rd7 18.Rcd1+=; 15.Qd3 Nd7 16.Qd4 b6 17.Rd1 Rbe8 18.c4+=; 15.0-0 Rbe8 16.Qd4 b6 17.c4 Qe7 18.cd5+/–) 15...Qe7 16.c5 Qe8 17.Nd4 Ne4 18.Qc2+/–; F) 14...Rad8 15.0-0 (15.Nd4 Nd7 16.0-0 Ne5 17.Be2 Rde8 18.Re1+=; 15.Qd4 b6 16.0-0 Rd7 17.Rad1 Bf5 18.Rd2+=; 15.Rc1 Qe7 16.Qd4 b6 17.0-0 Nd7 18.Be2+=; 15.Rb1 Bf5 16.Nd4 Be4 17.0-0 Rde8 18.Be4+=) 15...Bf5 16.Nd4 Qe5 17.Nf5 Qf5 18.Qd3+/–; G) 14...b6 15.0-0 (15.Nd4 b5 16.0-0 a5 17.c3 Bd7 18.Re1+=; 15.Qd4 Rae8 16.c4 Bg4 17.c5 Qc7 18.Bg4+=) 15...Nd7 16.Be2 Ne5 17.Qd4 Rad8 18.Rad1+/–; H) 14...Rac8 15.c4 (15.Qd4 b6 16.0-0 Rcd8 17.Rad1 Bf5 18.Qc3+=; 15.Rc1 Qe7 16.Nd4 Rce8 17.0-0 Bf7 18.Bg4+=; 15.0-0 Rce8 16.c4 Qe5 17.cd5 Nd5 18.Nc5+/–; 15.Nd4 Rce8 16.0-0 a6 17.Qd3 Nd7 18.Be2+=; 15.Qd3 Bg4 16.Nd4 Bf3 17.Nf3 Ne4 18.Rd1=) 15...Rce8 16.Nc5 Qe5 17.0-0 dc4 18.Nb7+/–; I) 14...Rf7 15.Nd4 (15.0-0 Qe5 16.Qd4 Qf5 17.Qh4 Qg6 18.Nd4+/–; 15.Qd4 Qe7 16.0-0 Nd7 17.Bh5 Rff8 18.Be2+/–; 15.c4 Re8 16.0-0 Qe5 17.cd5 Nd5 18.Nd4+/–) 15...a5 16.0-0 b5 17.a4 ab4 18.ab5+/–; J) 14...Bf5 15.c4 (15.Nd4 Be4 16.0-0 a5 17.b5 Rae8 18.Be4+=; 15.0-0 Qe7 16.Nd4 Be4 17.Be4 Ne4 18.Qd3+=; 15.Rc1 Be4 16.0-0 Bf3 17.Qf3 Rf7 18.Qd1+=; 15.Ra2 Be4 16.0-0 Bf3 17.Qf3 Ne4 18.Qg4+=) 15...Be4 16.cd5 Bd5 17.Bd5 Nd5 18.0-0+=.

    8.Nf3 0-0 9.Bd3 Be5 10.Ne5 Nbd7+=.

    8.Nf3 0-0 9.Bd3 Bg4 10.Bd6 Qd6 11.Nbd2 Nc6 12.0-0 Ne5 13.Be2 a5 14.Ne5 Be2 15.Qe2 Qe5 16.b5 Rae8 17.Nf3 Qd6 18.Nd4 Re4 19.f3 Re5 20.Qd3 Rfe8 21.Rae1 Qb6 22.Kh1 Nh5 23.f4 Re4 24.Kg1 (24.Re2!?+=) 24...Nf4+= 25.Qd2 Nh5 26.c3 (better is 26.c4!?=) 26...Nf6 27.h3 Qd6 28.a4 Qd7. Schwarz,B – Haefner,Erich, OWL–ch Buende, 1949.

    8.Nf3 0-0 9.Nd4 Be5 10.Ne6 Qe7 11.Nf8 Ba1 12.Nh7 Kh7-/+.

    8.Nf3 0-0 9.Bd6 Qd6 10.Bd3 Nc6 11.0-0 Bg4 12.Nbd2 Ne5+=.

    8.Nf3 0-0 9.Bg3 a6 (9...Bg4 10.c4 a5 11.b5 Bf3 12.Qf3 Bg3+/–; 9...Nc6 10.Nc3 Ne4 11.Ne4 de4 12.Nd2 Bf5+/–; 9...Be7 10.Bd3 c5 11.bc5 Bc5 12.0-0 Ne4+=; 9...Ne4 10.Bd6 Qd6 11.Bd3 Qe7 12.Nbd2 Nc3+=; 9...Bg3 10.hg3 a5 11.b5 Nbd7 12.Nc3 Qe7+=; 9...a5 10.b5 Bg3 11.hg3 Nbd7 12.Nc3 Nc5+=; 9...Qd7 10.Bd3 Nc6 11.b5 Na5 12.Bd6 Qd6+=; 9...c6 10.Bd3 a5 11.b5 cb5 12.Bb5 Nc6+=; 9...c5 10.Bd6 Qd6 11.bc5 Qc5 12.Nd4 Qe7+=) 10.Bd3 Bg4 11.Bd6 Qd6 12.0-0 Nc6+=.

    8.Nf3 Be5 9.Ne5 a5 10.b5 0-0 11.Nc3 Nbd7 12.Nf3 Qe7+=.

    8.Nf3 Be5 9.Ne5 Qd6 10.Qd4 0-0 11.Nd2 Nbd7 (11...a5 12.b5+=) 12.Nd7 Nd7 13.c4 Kh8 (13...Nf6 14.Bd3+=) 14.c5 (14.e4 c6+/–) 14...Qe7 15.Bd3 Qg5 16.g3 (16.Nf3 Qh5+/–) 16...Bh3 17.f4 Qe7 18.0-0-0 (18.e4 Bg2 19.Rg1 de4 20.Ne4 Bf3+/–) 18...Nf6 (18...a5 19.Qd5 ab4 20.ab4 Ra1 21.Kc2+=) 19.Rhg1 (19.e4 de4 20.Ne4 Rad8+/–) 19...a5 (19...Rae8=) 20.Nf3 (better is 20.Qe5!? Qf7 21.b5=) 20...Bg4 21.Rdf1 Bf3 22.Rf3 ab4 23.ab4 b6 (23...Ra2 24.Kd1+=) 24.g4 (24.cb6 cb6 25.b5 Qa3 26.Kd2 Qa2 27.Ke1 Rfc8–+) 24...bc5+= 25.Qc5 Qc5 (25...Ra1 26.Bb1 Qd8 27.Qd4+=) 26.bc5+= Ra1 27.Bb1 Rb8 28.Kc2 Ne4 29.c6? (29.Rff1 Ra3 30.Kc1 Rc3 31.Bc2 Rc5-/+) 29...Rb6 (better is 29...Rbb1!? 30.Rb1 Rb1 31.Kb1 Nd2 32.Kc2 Nf3–+) 30.Kd3? (better is 30.Rff1-/+) 30...Rbb1 (30...Rbb1 31.Rb1 Rb1–+) 0–1. Franek,Mieczyslaw – Olejnik,Zbigniew, 2. ch Poznan Poland, 1990.

    8.Nf3 Be5 9.Ne5 Qd6 10.Qd4 0-0 11.Bd3 Nc6 12.Nc6 Qc6+=.

    8.Nf3 Be5 9.Ne5 Nbd7 10.Qd4 0-0 11.Bd3 a5 12.b5 Ne5+=.

    8.Nf3 Be5 9.Ne5 Nbd7 10.Qd4 Ne5+=.

    8.Nf3 Be5 9.Ne5 Qe7 10.Bd3 0-0 11.0-0 c5 12.bc5 Nc6+/–.

    8.Bd6 Qd6

    9.Nc3 0-0 10.Qd2 a5 11.b5 Nbd7 12.Be2 Nc5 13.Nf3+=.

    9.Nc3 0-0 10.Bd3 a5 11.b5 Nbd7 12.Nge2 Rae8 13.Qd2+=.

    9.Nc3 0-0 10.Be2 a5 11.b5 Qe5 12.Qd4 Qd4 13.ed4+/–.

    9.Nc3 0-0 10.Nf3 a5 11.b5 Nbd7 12.Be2 Ne5 13.0-0+=.

    9.Nc3 a5 10.b5 0-0 11.Nf3 Nbd7 12.Be2 c5+=.

    9.Nc3 a5 10.b5 0-0 11.Nf3 Nbd7 12.Be2 Rae8 13.Qd2+=.

    9.Nc3 a6 10.Qd2 0-0 11.Nf3 Nc6 12.Rd1 a5 13.Ng5+=.

    9.Nc3 a6 10.Qd3 Nbd7 11.Nf3 Bg4 12.Nd4 0-0 13.h3+=.

    9.Nc3 a6 10.Bd3 Nbd7 11.Nge2 0-0 12.0-0 Rae8 13.Nf4+=.

    9.Nc3 a6 10.Be2 a5 11.b5 0-0 12.Nf3 Nbd7 13.0-0+/–.

    9.Nc3 a6 10.Nge2 0-0 11.Nf4 Nc6 12.Bd3 Bg4 13.Qd2+=.

    9.Nc3 a6 10.Nf3 0-0 11.Be2 Nc6 12.Qd2 Rad8+=.

    9.Nc3 a6 10.Nf3 0-0 11.Be2 Nbd7 12.0-0 Rae8 13.Qd4+=.

    9.Nc3 Nc6 10.Nb5 Qe7 11.Ne2 a6 12.Nbd4 Nd4 13.Nd4+=.

    9.Nc3 Nc6 10.Qd2 0-0 11.Nf3 Rae8 12.Bb5 a6 13.Bc6+=.

    9.Nc3 Nc6 10.Bd3 0-0 11.Nf3 Bg4 12.Be2 a5 13.b5+=.

    9.Nc3 Nc6 10.Be2 0-0 11.Nf3 a5 12.b5 Ne5 13.0-0+=.

    9.Nc3 Nc6 10.Nge2 0-0 11.Nb5 Qd7 12.Nf4 Rae8 13.Ne6+=.

    9.Nc3 Nc6 10.Nf3 0-0 11.Be2 a5 12.b5 Ne5+=.

    9.Nc3 Nbd7 10.Nb5 (10.Nf3 a6 11.Be2 0-0 12.0-0 Rae8 13.Qd4+=; 10.Nge2 a6 11.Nf4 0-0 12.Qd2 Rae8 13.Be2+=; 10.Be2 0-0 11.Nf3 c6 12.0-0 b5 13.Qd4+/–; 10.Qd4 a5 11.b5 0-0 12.Nf3 c5 13.bc6+=; 10.Bd3 Ne5 11.Nb5 Qe7 12.Ne2 0-0 13.0-0+=) 10...Qb6 11.Qd4 c5 12.Qf4 0-0 13.Qc7+/–.

    9.Nc3 Qe7 10.Nf3 0-0 11.Be2 c6 12.0-0 Nbd7+=.

    9.Nd2 A) 9...Nc6 10.Ngf3 (10.Bd3 0-0 11.Ngf3 Ne5 12.0-0 Bg4 13.h3+=; 10.Be2 0-0 11.Ngf3 Rae8 12.0-0 a6 13.Bd3+=; 10.Bb5 0-0 11.Ngf3 a5 12.Bc6 Qc6 13.Nd4+=; 10.c4 d4 11.Ndf3 de3 12.fe3 Qe7 13.b5+=; 10.b5 Ne5 11.Ngf3 0-0 12.Be2 Nf3 13.Nf3+=; 10.Nb3 0-0 11.Nc5 Bc8 12.c4 d4 13.ed4+=; 10.Ndf3 0-0 11.b5 Ne7 12.Bd3 a6 13.ba6+=; 10.c3 0-0 11.Ngf3 Rae8 12.Be2 Ne5 13.0-0+=; 10.Rb1 a5 11.b5 Ne5 12.a4 Qa3 13.Ra1+=) 10...Ne5 11.Ne5 Qe5 12.Be2 Qc3 13.0-0+/–; B) 9...0-0 10.Ngf3 (10.Bd3 a5 11.b5 Nbd7 12.Ngf3 Rae8 13.0-0+=; 10.Be2 a5 11.b5 Nbd7 12.Ngf3 Nc5 13.0-0+=; 10.h3 Nc6 11.Ngf3 Rae8 12.Nb3 Ne5 13.Ne5+=; 10.Rb1 Nc6 11.Ngf3 a5 12.b5 Ne5 13.a4+=) 10...Nbd7 11.Bd3 Ne5 12.0-0 Bg4 13.Be2+=; C) 9...Nbd7 10.Be2 (10.Bd3 0-0 11.Ngf3 a5 12.0-0 ab4 13.ab4+=; 10.Ngf3 0-0 11.Bd3 a5 12.0-0 ab4 13.ab4+=; 10.Nb3 0-0 11.Nf3 Bg4 12.Be2 Bf3 13.Bf3+=; 10.Ne2 0-0 11.Nd4 Bg4 12.Be2 Be2 13.Qe2+=) 10...0-0 11.Ngf3 a5 12.Nd4 Ne5 13.0-0+=; D) 9...a6 10.Bd3 (10.Ngf3 0-0 11.Bd3 Nc6 12.0-0 Rae8 13.Re1+=; 10.Nb3 0-0 11.Bd3 Nbd7 12.Nd4 Ne5 13.Ne6+=; 10.Be2 0-0 11.Ngf3 Nc6 12.0-0 Rae8 13.Re1+=; 10.c4 dc4 11.Nc4 Qe7 12.Ne5 Nbd7 13.Nd7+=; 10.Ndf3 0-0 11.Bd3 Nc6 12.Qd2 Qe7 13.Ne2+=) 10...0-0 11.Ngf3 Nc6 12.0-0 Rae8 13.Re1+=; E) 9...a5 10.b5 0-0 11.Ngf3 Nbd7 12.Bd3 Nc5 13.0-0+=.

    9.Nf3 a5 10.b5 0-0 11.Bd3 Nbd7 12.0-0 Rae8 13.Nbd2+=.

    9.Nf3 a6 10.Nc3 (10.Nbd2 0-0 11.Bd3 Nc6 12.0-0 Rae8 13.Re1+=; 10.Bd3 0-0 11.0-0 Nbd7 12.Nbd2 Rae8 13.c4+=; 10.Be2 0-0 11.Nc3 Nc6 12.Qd2 Ne5 13.Rd1+=; 10.Qd3 0-0 11.Be2 Nbd7 12.Nc3 c6 13.0-0+=; 10.c3 0-0 11.Bd3 Nbd7 12.Nbd2 Rae8 13.Qc2+=; 10.Nd4 Nc6 11.Be2 Nd4 12.Qd4 a5 13.0-0+=) 10...0-0 11.Be2 Nbd7 12.Qd4 b6 13.0-0+=.

    9.Nf3 c6 10.Qd4 (10.Bd3 0-0 11.c4 a5 12.c5 Qe7 13.Nbd2+/–; 10.Nbd2 0-0 11.Bd3 b5 12.a4 a5 13.ab5+/–; 10.Be2 0-0 11.Qd4 Nbd7 12.Nbd2 b6 13.0-0+/–; 10.Nc3 0-0 11.Qd4 a5 12.b5 Nbd7 13.Be2+=; 10.c4 0-0 11.c5 Qe7 12.Bd3 Ne4 13.Qc2+/–; 10.Nd4 0-0 11.Nd2 Bg4 12.Qb1 a5 13.ba5+=) 10...Nbd7 11.Bd3 0-0 12.0-0 b6 13.Nbd2+/–.

    9.Nf3 Nbd7 10.Nc3 (10.Nbd2 0-0 11.Bd3 Ne5 12.0-0 Bg4 13.h3+=; 10.Bd3 Ne5 11.Nbd2 0-0 12.0-0 Bg4 13.h3+=; 10.Be2 a5 11.b5 0-0 12.0-0 Rae8 13.Qd2+=; 10.Qd4 a5 11.b5 0-0 12.Bd3 c5 13.bc6+=; 10.Nd4 0-0 11.Nc3 Qe7 12.Bd3 Ne5 13.0-0+=; 10.c3 0-0 11.Be2 a5 12.Nbd2 ab4 13.ab4+=; 10.b5 0-0 11.Be2 a6 12.Nc3 Ne5 13.Ne5+=) 10...Bg4 11.Nb5 Qc6 12.Nfd4 Qb6 13.f3+/–.

    9.Nf3 Ne4 10.Bd3 (10.Bb5 Bd7 11.Bd3 Qf6 12.Nbd2 Nc3 13.Qc1+=; 10.Be2 0-0 11.0-0 Nc6 12.Bd3 Rac8 13.Nbd2+/–; 10.h3 0-0 11.Bd3 Qe7 12.0-0 Nd7 13.c4+=) 10...Qe7 11.Nbd2 Nc3 12.Qc1 Qf6 13.Qb2+/–.

    9.Nf3 Qe7 10.Be2 (10.Nc3 0-0 11.Bd3 Bg4 12.0-0 c6 13.Be2+=; 10.Bd3 0-0 11.Nbd2 Nbd7 12.0-0 Rae8 13.Re1+=; 10.Nbd2 a5 11.b5 0-0 12.Bd3 Nbd7 13.0-0+=; 10.Qd4 a5 11.b5 c5 12.Qd3 Nbd7 13.Be2+=; 10.Bb5 Nbd7 11.0-0 Bg4 12.Bd7 Qd7 13.Nbd2+=) 10...a5 11.b5 0-0 12.0-0 Ne4 13.Qd3+=.

    9.Nf3 Bg4 10.c4 (10.Nbd2 0-0 11.Bd3 Nbd7 12.h3 Bf3 13.Nf3+=; 10.Bb5 Nbd7 11.0-0 0-0 12.Nbd2 a5 13.c4+=; 10.Be2 0-0 11.c4 a5 12.b5 Nbd7 13.Nc3+/–; 10.Bd3 0-0 11.Nbd2 Nc6 12.h3 Bf3 13.Nf3+=) 10...a5 11.b5 0-0 12.Nc3 Bf3 13.gf3+/–.

    9.Nf3 0-0

    10.c3 Nbd7 11.Qd4 Bg4 12.Nbd2 a5 13.Bd3+=.

    10.Nc3 a5 11.b5 Nbd7 12.Be2 Rae8 13.0-0+=.

    10.Nc3 Nc6 11.Be2 a5 12.b5 Ne5+=.

    10.Nbd2 Nc6 11.Bd3 Rae8 12.0-0 Bg4 13.h3+=.

    10.Bd3 a5 11.b5 Nbd7 12.h3 (12.0-0 Rae8+=) 12...Ne5 (12...c5+=) 13.Ne5 Qe5 14.Nd2. Krasny,Henryk Jan – Rehbein, corr SOK–98–132, 1998.

    10.Bd3 Nc6+= 11.0-0 Bg4 12.h3 Bh5 13.Nbd2+=.

    10.Bd3 Nbd7 11.0-0 a5 12.b5 Rae8+=.

    10.Bd3 Nbd7 11.0-0 Ne5 12.Nbd2 Bg4 13.Be2+=.

    10.Be2 a5 11.b5 Nbd7 12.0-0 Rae8 13.Nc3+=.

    9.Nf3 Nc6

    10.b5 Ne5 11.Ne5 Qe5 12.Qd4 Qf5 13.Nd2+=.

    10.Bb5 0-0 11.0-0 a5 12.Bc6 Qc6 13.Nd4+=.

    10.c3 0-0 11.Be2 a5 12.Nbd2 ab4 13.ab4+=.

    10.Nc3 0-0 11.Be2 a5 12.b5 Ne5 13.0-0+=.

    10.Nc3 0-0 11.Be2 Rad8 12.Nb5 Qe7 13.Nbd4 1–0. icyglare (2445) – anangemede (2090), net–chess.com, 2006.

    10.Nbd2 0-0 11.Bd3 Ne5 12.0-0 Bg4 13.h3+=.

    10.Qd3 0-0 11.Nc3 a5 12.b5 Ne5 13.Ne5+=.

    10.Bd3 0-0 11.0-0 Ne5 12.Nbd2 Nd3 13.cd3+/–.

    10.Be2 0-0 11.0-0 Ne4 12.Bd3 Rae8 13.b5+=.

    10.h3 0-0 11.Bd3 Ne5 12.Nbd2 Nd3 13.cd3+=.

    5.d4 Nd7

    6.Bb5 c6 7.Be2 Ne7 (7...a5 8.b5 Bd6 9.de5 Ne5 10.Nf3 Nf3 11.Bf3+=) 8.Bh5 (8.de5 Ne5 9.Nf3 Nf3 10.Bf3 Ng6+=) 8...Bf7 (8...g6!? 9.Be2 Nf5-/+) 9.Bf7+= Kf7 10.Nf3 (10.de5 Ne5 11.Be5 fe5+=) 10...Ng6 (10...e4 11.Nfd2+=) 11.0-0= Bd6 12.de5 Nge5 13.Ne5 Be5 (worse is 13...fe5 14.c4 Nf6 15.cd5 Nd5 16.Nd2+/–) 14.Be5 Ne5 15.Nc3 Re8 16.Qd4 Qc7 17.Ne2 (17.Rfd1 Qd7=) 17...Kg8 18.Qf4 Qf7 19.Rfd1 Qg6 (19...Nc4 20.Nd4+=) 20.Rac1 (20.Nd4 Nc4+=) 20...Nc4 21.Qc7 Rab8 (worse is 21...Na3 22.Qb7 Rec8 23.Nd4+/–) 22.Nf4 Qf5 23.b5 (23.a4+=) 23...cb5 (better is 23...Qe5!? 24.Qe5 fe5-/+ (24...Ne5?! 25.Ne2+=; 24...Re5?! 25.a4+=)) 24.Rd5= Qc8 25.Qc8 Rec8 26.Rb5 Na3 27.Ra5 Rc2 28.Rc2 Nc2 29.Ra7 Nb4 30.Ra4 Nc6 31.Kf1 (31.Nd5 Rd8 32.e4 b5=) 31...Kf7 (31...b5 32.Ra6 Ne5 33.Ra3=) 32.Ke2 g6 33.Rc4 Ke7 34.Nd5 Ke6 35.Nc3 f5 36.f4 Kd7 37.Rc5 b6 38.Rd5 Ke6 39.Rb5 Na7 40.Re5 Kf7 41.Kd3 b5 42.Rc5 Rb7 43.Nd5 Ke6 1–0. Airapetian,Valentin (1795) – Zakarian,Diana, Loo RUS, Tseshkovsky Mem, 2014.

    6.Nc3 a5 7.ba5 Ra5 8.Be2 Be7 9.Nf3 Nh6 10.e4 de4 11.Ne4 f5 12.Ned2 e4 13.Ne5 Ne5 14.de5 Rd5 15.c4 Rd7 16.Qc2 Bh4 17.Nf1 0-0 18.Qb3 b6 19.Ng3 Qa8 20.0-0 f4 21.Nh1 Rd2 22.Rfe1 e3! 23.g3 f3 24.Qe3 Rb2 25.Bf1 Be7 26.Qc3 Re2 27.Be2 fe2 28.Re2 Bh3 (29.f3 Bc5 30.Rf2 Rf3 31.Qe3 Rf2 32.Kf2 Qg2 33.Ke1 Be3 34.Rd1 Qf1) 0–1. Bestia_05 – Pepito_121c, computer chess game, 2001.

    6.c4 Ne7 7.cd5 (7.de5 Ne5 8.cd5 Qd5=) 7...Nd5 8.e4 N5b6 9.Nf3 (9.d5 Bf7=) 9...Bd6 10.d5 (10.Nc3 c6=) 10...Bf7 11.Nc3 0-0 12.Rc1 (12.Nh4 a5 13.b5 Nc5=) 12...Qe7 (12...a5!? 13.ba5 Ra5=+) 13.Nh4+= g6 14.Qg4 Kh8 15.Nb5 Rac8 (15...a5 16.Nd6 (< 16.Rc7 ab4 17.Rb7 ba3-/+) 16...cd6 17.Bb5=) 16.Na7 (better is 16.Be2+=) 16...Rce8? (better is 16...Bb4 17.ab4 Qb4 18.Bc3 Qa3=) 17.Nb5+– Na4 (17...f5 18.ef5 g5 19.Nf3+/– (19.Nc7?! Bc7 20.Rc7 gh4+=; 19.Nd6?! cd6 20.Nf3 Rg8+/–)) 18.Ba1 (18.Nd6 cd6 19.Rc7+–) 18...Bb4 (better is 18...Rc8!?+–) 19.ab4 Qb4 20.Bc3 (20.Nc3 f5 21.Qf3 fe4 22.Qe4 Qa3+–) 20...Nc3 21.Nc3 (21.Rc3 c6 22.dc6 bc6 23.Qd7 cb5–+) 21...f5 (21...Nc5 22.Qe2+–) 22.Qh3 Nc5 23.ef5 Ne4 (23...Qf4 24.Rc2 gf5 25.Bb5+–) 24.Ng6 Kg7 (24...Bg6 25.fg6 Re7+–) 25.Nf8 Rf8 (25...Nc3 26.f6! Kf6 27.Nh7 Kg7 28.Qc3 Qe4 29.Qe3 Qb4 30.Qd2 Qe4 31.Be2 Qh7 32.Rc7 Qb1 33.Bd1 Qe4 34.Qe3 Qb4 35.Kf1+–) 26.Qg4 Kh8 27.Qe4 1–0. market (2215) – stefanj (1995), GameColony.com, 2002.

    6.Nd2 a6 A) 7.de5 fe5 8.Ngf3 Bd6 9.c4 c6 10.Ne4 Be7=; B) 7.e4 ed4 (7...de4 8.Ne4 ed4 9.Bd4 Qe7 10.Bd3 a5=; 7...a5 8.b5 de4 9.Ne4 Be7 10.Qe2 Nh6=; 7...Nh6 8.ed5 Bd5 9.Qe2 Qe7 10.c4 Bf7=; 7...Qe7 8.de5 Ne5 9.Be5 fe5 10.ed5 Bd5=; 7...Ne7 8.ed5 Nd5 9.de5 fe5 10.Ngf3 a5+=) 8.Ngf3 c5 9.bc5 Bc5 10.Nd4 Qb6=; C) 7.c4 a5 (7...dc4 8.Bc4 Bc4 9.Nc4 Qe7 10.Rc1 c6+=; 7...ed4 8.Bd4 a5 9.b5 c5 10.bc6 bc6+=; 7...Ne7 8.de5 fe5 9.Ngf3 Ng6 10.cd5 Bd5+=; 7...Bd6 8.cd5 Bd5 9.e4 Bf7 10.Nc4 Qe7+=) 8.cd5 Bd5 9.e4 Bf7 10.b5 ed4+=.

    6.Nd2 c6 7.c4 Bd6 8.Ne2 Ne7 9.de5 fe5 10.cd5 cd5 11.g3 0-0 12.Bg2 Qe8 13.0-0 Qh5 14.Nc3 Qd1 15.Rad1 Rac8 16.Nf3 h6 17.Nh4 Can d5 get defended? 17...g5 18.Nf3 Bb8 19.Ne1 e4 20.Nc2 Ne5 21.Nd4 Bg4 22.Rb1 Nc4 (22...Nc4 23.Rfc1 Be5-/+) 0–1. Marulanda,Carlos A – Prado Segura,Robinson A (1825), Bogota COL, McGregor Open, 2011.

    6.Nd2 c6 7.c4 e4 8.Ne2 Bd6 A) 9.Nc3 A1) 9...f5 10.cd5 (10.c5 Bc7 11.b5 f4 12.ef4 Bf4 13.Bc1=; 10.b5 Ngf6 11.c5 Be7 12.bc6 bc6 13.Qa4=) 10...cd5 11.Nb3 b6 12.Ba6 Qg5 13.g3=; A2) 9...Ne7 10.cd5 (10.Be2 0-0 11.0-0 Qb8 12.h3 f5 13.c5=) 10...cd5 11.Qb3 f5 12.Be2 0-0 13.0-0=; B) 9.c5 B1) 9...Bb8 10.Ng3 (10.Qb3 f5 11.Rb1 Ne7 12.b5 0-0 13.bc6=; 10.b5 Ne7 11.Qb3 f5 12.Rb1 0-0 13.Nc3=; 10.Nf4 Bf4 11.ef4 Qc7 12.Bc1 Ne7 13.Qh5=; 10.Nc3 Ne7 11.Be2 0-0 12.Qb3 f5 13.0-0=; 10.Rb1 Ne7 11.Qb3 f5 12.b5 0-0 13.Nc3=) 10...Ne7 11.Be2 0-0 12.0-0 f5 13.Qb3=; B2) 9...Bc7 10.Nc3 (10.Ng3 Ne7 11.Be2 f5 12.0-0 0-0 13.Qb3=; 10.Nf4 Bf4 11.ef4 Qc7 12.Bc1 Ne7 13.Qh5=) 10...f5 11.b5 f4 12.ef4 Bf4 13.Bc1=; C) 9.b5 Ne7 10.Qb3 (10.bc6 bc6 11.Rb1 0-0 12.Nc3 f5 13.c5+=; 10.Nc3 0-0 11.Be2 f5 12.c5 Bc7 13.f4=; 10.c5 Bc7 11.Qb3 f5 12.Rb1 0-0 13.g3=; 10.Ng3 0-0 11.c5 Bc7 12.Rb1 f5 13.bc6=; 10.Rc1 0-0 11.Nc3 f5 12.bc6 bc6 13.cd5+=) 10...c5 11.Nc3 cd4 12.ed4 f5 13.cd5=; D) 9.cd5 cd5 10.Nb3 (10.Nf4 Bf4 11.ef4 Ne7 12.Qh5 g6 13.Qe2=; 10.Qb3 f5 11.Nf4 Bf4 12.ef4 Ne7 13.Rc1=; 10.Nc3 Ne7 11.Qb3 f5 12.Be2 0-0 13.0-0=; 10.Rc1 Ne7 11.Nc3 0-0 12.Qb3 f5 13.Be2=) 10...b6 11.Nc3 a6 12.b5 a5 13.Be2=; E) 9.Rc1 E1) 9...f5 10.cd5 (10.b5 Ne7 11.bc6 bc6 12.c5 Bc7 13.Rb1=) 10...Bd5 11.Nc3 Ngf6 12.Nd5 cd5 13.Nb3=; E2) 9...Ne7 10.cd5 (10.Nc3 0-0 11.cd5 cd5 12.Nb5 Bb8 13.Be2=; 10.Ng3 0-0 11.cd5 cd5 12.Qb3 f5 13.Be2=) 10...cd5 11.Nb3 b6 12.Nc3 a6 13.b5=; F) 9.Qb3 F1) 9...Kf7 10.Ng3 (10.b5 Ne7 11.c5 Bc7 12.Nc3 b6 13.bc6=; 10.c5 Bc7 11.b5 Ne7 12.Nc3 a6 13.b6+=; 10.Nc3 Ne7 11.Be2 Qb8 12.cd5 cd5 13.Rc1=; 10.Rb1 Ne7 11.Nc3 a6 12.Be2 Qb8 13.h3+=; 10.cd5 cd5 11.Nc3 a5 12.Be2 ab4 13.Nb5+=; 10.Rc1 Ne7 11.Nc3 f5 12.Be2 Nf6 13.0-0=; 10.Rd1 Ne7 11.Nc3 Qb8 12.h3 Rf8 13.Be2=; 10.Qc2 Ne7 11.Ng3 Bg4 12.f3 ef3 13.gf3=) 10...f5 11.cd5 Bd5 12.Bc4 Nb6 13.Bd5+/–; F2) 9...Bf7 10.b5 (10.c5 Bc7 11.b5 Ne7 12.Rb1 0-0 13.bc6=) 10...Ne7 11.Nc3 0-0 12.Rb1 Rb8 13.Be2=; F3) 9...Qe7 10.c5 (10.Nc3 dc4 11.Bc4 Bc4 12.Nc4 Bc7 13.d5+=; 10.b5 dc4 11.Nc4 Bc4 12.Qc4 Rc8 13.Nc3=) 10...Bc7 11.b5 cb5 12.Nc3 a6 13.Nd5+/–; F4) 9...dc4 10.Nc4 (10.Qc2 f5 11.Nc4 Bc4 12.Qc4 Ne7 13.Nc3=) 10...Bc7 11.Nc3 b5 12.Nd6 Ke7 13.d5+=; F5) 9...f5 10.c5 Bc7 11.b5 Ne7 12.Rb1 0-0 13.bc6=; G) 9.Ng3 G1) 9...Nh6 10.Qh5 (10.Be2 f5 11.c5 Bc7 12.0-0 Qh4 13.