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1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6

(...)

5.a3 a6 6.a4 (6.Nc3 ab5 7.Bb5 Nc6+=) 6...ab5+= 7.ab5 Ra1 8.Ba1 Bd7 (8...Bd6!?+=) 9.g3 (9.d4 Be6 10.de5 Nd7+=) 9...c6 10.c4 d4 (10...Bc5!?=) 11.ed4+/– ed4 12.Bd4 Qe7 (12...Nh6 13.Nf3+/–) 13.Qe2 (13.Be3 Nh6+/–) 13...Qe2 14.Be2 c5 (14...cb5 15.cb5 Nh6 16.Nc3+/–) 15.Be3+– g5 (15...Nh6 16.Nc3 Be6 17.Nf3+–) 16.Nc3 Be6 17.d4 cd4 18.Bd4 Nd7 19.Nf3 h6 20.0–0 g4 21.Nd2 h5 (21...Ne7 22.Nce4 Nf5 23.Nf6 Nf6 24.Bf6+–) 22.Ra1 Nh6 23.Ra7 Nf5 24.Nb3 Nd6 25.Nc5 (better is 25.Nd5 Nb5 26.Rb7 (26.cb5?! Bd5 27.Na5 Bd6+/–) 26...Nd4 27.Nd4 Bd5 28.cd5+–) 25...Nc5+= 26.Bc5 Nc8 27.Bf8 Na7 28.Bc5 (28.Bg7!? Rg8 29.Bf6+=) 28...Nc8= 29.Ne4 f5 30.Nd2 Rh7 31.f4 Rd7 32.Nb3 ½–½. Baer,Cy (1895) – Hannaske,Daniel (1660), RSS4D easy–40, 2007.

5.Na3 a6 6.Nh3 c6 7.f4 (7.bc6 Nc6 8.Nb1 Qb6–/+) 7...Ba3 8.Ba3 ab5 (8...cb5?! 9.fe5 Nc6 10.Nf4+=) 9.Bb4 Na6 10.Bc3 d4 11.ed4 ed4 12.Bb2 Qd5 13.Nf2 Nc5 14.Qe2 0–0–0 15.h4 (better is 15.a4!? ba4 16.Kd1–+) 15...Re8–+ 16.Kd1 Nh6 17.Qf3 Qd7 (17...Qf3!? 18.gf3 Bd5 19.Bh3 Ne6 20.Ne4–+) 18.Be2 Nf5 19.Nd3 Nd3 20.Bd3 0–1. Radwan,Jan (1740) – Rutkowski,Jerzy (2065), Rowy/Fregata Poland, 2009.

5.a4 Ne7 6.Nf3 c5 7.d4 cd4 8.ed4 e4 9.Nfd2 Nf5 10.c4 dc4 11.Ne4 (11.Qc2 Qd7 12.Bc4 (worse is 12.Ne4 Nd4 13.Bd4 Qd4–/+; 12.Qe4?! Nd6 13.Qf3 Qe7=) 12...Bc4 13.Qc4+=) 11...Bb4–/+ 12.Bc3 (better is 12.Nbd2 Nd4 13.Bc3 Bc3 14.Nc3–/+) 12...Ba5 (better is 12...Qd4! 13.Qe2 Nd7–/+) 13.Nc5= Bd5 14.Qg4 Qe7 (better is 14...g6!?=) 15.Be2+/– Nh6 16.Qc8 (better is 16.Qh5!? Bf7 17.Qf3+–) 16...Bd8+= 17.0–0 Qe2 (better is 17...0–0 18.Re1 Bb6=) 18.Re1+– Qe1 19.Be1 0–0 20.Nc3 (better is 20.Ne6 Re8 21.Nc3 Be6 22.Qb7+–) 20...Ba5 21.Qf8! Kf8 22.Nd5 Discovered attack 22...Bb6 23.Bb4 (23.Ne6 Kf7 24.Nec7 Bd4+–) 23...Bc5?? (better is 23...Kf7+–) 24.Bc5 (24.dc5?! a5 25.Ba3 Kf7+–) 24...Kf7 25.Nc7 b6 26.Bb4 (better is 26.Ba3!? Nc6 27.bc6 Rc8+–) 26...a5 27.Na8 ab4 28.Nb6 c3 29.Nd5 Nf5 30.Nb4 Nd4 31.b6 (better is 31.Kf1!? Nb3 32.Ra3 Nc5+–) 31...c2 32.a5 (better is 32.Kf1 Nb3 33.Nc2 Na1 34.Na1+–) 32...c1Q+/– 33.Rc1 Decoy to c1 33...Ne2 Theme: Double Attack 34.Kf1 Nc1 35.a6 Nd3 36.a7 (36.Nd3?! Na6 37.Ke2 Ke6+/–) 36...Nd7 37.b7 (better is 37.Nd5 N3e5+–) 37...Nb4 38.a8Q (better is 38.b8Q!? Nb8 39.ab8Q Nd5+–) 38...Nc6 39.Qa2 Kf8 (39...Ke7 40.Qg8 Kd6 41.Qg7+–) 40.Qe6 (40.Qc2!? Ncb8 41.Qh7 Kf7+–) 40...Ncb8 41.f4 g6 42.g4 g5 (42...Kg7 43.Qe7 Kg8 44.Ke2+–) 43.fg5 (43.Qe4 Kg7+–) 43...fg5 44.Ke2 Kg7 45.Ke3 h6 (45...Nf6 46.Qe5 Nbd7 47.Qg5 Kf7+–) 46.Kd4 Nf6 47.Qe5 (better is 47.Ke5 Nfd7 48.Kd6+–) 47...Nc6 48.Kc3 Ne5 49.b8Q Neg4 50.h3 (50.Kd4 Nf2+–) 50...Ne4 51.Kd4 Ngf6 52.Qe5 (52.Qc7 Kg6+–) 52...Kg6 53.Ke3 (53.Qb5 h5+–) 53...g4 54.Kf4 gh3 (54...h5 55.hg4 hg4 56.Qf5 Kf7 57.Ke3+–) 55.Qf5 Kg7 56.Qh3 h5 57.Qg2 Kf7 58.Qe4?? (better is 58.Ke5+–) 58...Ne4= 59.Ke4 Kg6 60.Kf3 Kf5 61.Kg3 Kg5 62.Kh3 h4 63.Kh2 Kg4 64.Kg2 h3 65.Kh2 Kh4 66.Kh1 Kg3 67.Kg1 h2 68.Kh1 Kg4 69.Kh2 ½–½. german – Zippy, ICS, 1993.

5.Nc3 a6 6.Nf3 ab5 7.Bb5 (7.Nb5 A) 7...Nh6 8.a4 (8.Be2 c6 9.Nc3 Bd6 10.a4 0–0 11.Qb1=+; 8.Nc3 Nf5 9.Be2 Be7 10.0–0 0–0 11.a4=+; 8.Bd3 c6 9.Nc3 Bd6 10.0–0 0–0 11.a4=+) 8...Nf5 9.g4 Nd6 10.g5 Nd7 11.gf6=+; B) 7...c6 8.Nc3 Bd6 9.a4 Ne7 10.Be2 0–0 11.0–0=+) 7...c6 (7...Nd7 8.0–0 (8.Be2 Nh6 9.a3 Be7 10.0–0 0–0 11.d4=+; 8.a4 Bb4 9.0–0 Ne7 10.Re1 c6 11.Be2=+) 8...Bd6 9.Be2 Nh6 10.Re1 0–0 11.Nb5=+; 7...Nc6 8.0–0 Bd6 9.Bc6 bc6 10.a4 Ne7 11.Qe2=; 7...Kf7 8.0–0 c6 9.Be2 Bd6 10.a4 Ne7 11.Re1=+) 8.Be2 (8.Bd3 Bd6 9.Be2 Ne7 10.a4 0–0 11.0–0=+) 8...Bd6 9.a4 Ne7 10.Ba3 (10.0–0 0–0 11.Qb1=+) 10...Ba3 11.Ra3 b5 12.Qb1 Qd6 13.Ra1 b4 14.Nd1 c5 =+.

5.Nc3 c5 6.a4 Bd6 7.Nce2 Ne7–/+ 8.Ng3 Nd7 9.c3 0–0 10.Bd3 e4 11.Bc2 a6 12.ba6 ba6 13.d4 Rb8 14.Ba3 Qa5 15.N1e2 Bg4 16.0–0 Qc7 17.f3 ef3 18.gf3 Bh3 19.Rf2 Bg3 20.Ng3 Qa5 21.Qd2 Rfe8 22.e4 cd4 23.Qd4 de4= 24.Ne4 Nc6 25.Qe3 Kh8 26.Rd2 Nb6 27.Qf4? Na4?? 28.Bd6+– Qb6 29.Kh1?? Nb2? 30.Bc5 Qb5= 31.Rb1 Qc4=+ 32.Rg1 Rbd8?? 33.Qg3+/– g6 34.Rd8 Nd8 35.Bd4 Bd7 36.Bf6 Kg8 37.Qh4?? Nf7? 38.Rb1?? Rb8? 39.Bd4+/– Bc6 40.Qf6 Ne5 41.Qe5 Rb7 42.Qh8 Kf7 43.Nd6 Ke6 44.Qf6 Kd7 45.Nc4 Nc4 46.Qf7 Kd6 47.Rb7 Bb7 48.Qb7 a5 49.Ba4 Nb6 50.Qb6 Ke7 51.Qf6# 1–0. NN – SuperConstellation4, 1990.

5.Nc3 Ne7 6.Nf3 Qd6 7.Be2 Nd7 (7...Nf5 8.0–0 a6 9.a4 Nd7 10.Ba3 c5 11.e4=; 7...Ng6 8.0–0 (8.a4 c5 9.0–0 Be7 10.a5 0–0 11.Ra4=) 8...Be7 9.a4 0–0 10.Ba3 c5 11.d4=; 7...g5 8.0–0 (8.a4 g4 9.Nh4 f5 10.0–0 Bg7 11.f4=) 8...Nd7 9.a4 Qb4 10.Ba3 Qa5 11.Rb1=; 7...c5 8.0–0 (8.bc6 Nbc6 9.0–0 Rc8 10.a4 Nf5 11.Ba3=; 8.Ba3 Qc7 9.e4 Nd7 10.0–0 d4 11.Na4=+; 8.a3 Ng6 9.0–0 Be7 10.a4 0–0 11.Ba3=+) 8...Nd7 9.a4 0–0–0 10.a5 g5 11.d4=) 8.a4 (8.0–0 0–0–0 9.a4 Qb4 10.Ba3 Qa5 11.Rb1=; 8.a3 0–0–0 9.a4 Qb4 10.Ba3 Qa5 11.Rb1=+; 8.Rb1 Nf5 9.0–0 0–0–0 10.d3 Nb6 11.Re1=+) 8...Qb4 9.Ba3 Qa5 10.Rb1 (10.0–0 Nf5 11.Bf8=+) 10...Nf5 11.Bf8 Rf8 12.0–0 Nb6 13.Ra1 0–0–0 14.Qe1 e4 (14...e4 15.Nd4 Nd4 16.ed4 Rfe8=+).

5.Nc3 g6 6.Be2 c5 7.Nh3 Qd7 8.Ng1 d4 9.ed4 cd4 10.Ne4 Be7 11.d3? f5 12.Nd2 Qb5 13.Bc1 Nf6 14.Rb1 Qa6 15.Nb3 Nc6 16.Nf3 Nd5 17.Bb2 0–0 18.0–0 Qa2 19.Nfd2? Rac8 20.Bc1?? Nc3 21.Ra1 Nd1 22.Ra2 Nc3 23.Nc5 Ne2 (23...Ne2 24.Kh1 Ba2–+) 0–1. wood – Caissa, Live Game Caissa's Web, 2005.

5.c4 c5 6.cd5 Bd5 7.Nc3 Be6 8.Be2 Ne7 9.Bf3 Qd7 10.d3 Ng6 11.Nge2 Nh4 12.Ng3 Nf3 13.Qf3 Be7 14.0–0 0–0 15.a4 Kh8 16.h3 Rd8 17.Rfd1 Qc8 18.Qe2 Nd7 19.Ba3 Bf8 20.Rac1 b6 21.Qb2 Qb7 22.Nce4 Bd5 23.f3 Be6 24.Nd2 Rac8 25.Nc4 Qb8 26.Qe2 Re8 27.Bb2 Rcd8 28.Qf2 Be7 29.f4 ef4 30.ef4 Bd5 31.Nf5 Nf8 32.Re1 Ne6 33.Ne7 Nf4 34.Nd5 Re1 35.Re1 Nd3 36.Qe2 Ne1 37.Nf6 Qg3 38.Nh5 Qh4 39.Bg7 Kg8 40.Qe6# 1–0. Sternik – Len, Poland 1990.

5.c4 Bc5 6.cd5= Bd5 7.Nc3 Be6 8.Qc2 Nd7 9.Nf3 Ne7 10.Ne4 Bd6 11.Bc4 Nd5 12.0–0 N7b6 13.Be2 Nb4 14.Qb1 Be7 (14...Bc4 15.Bc4 Nc4 16.d4+=) 15.a3 N4d5 16.Qc2 0–0 17.d4 ed4 18.Nd4 Bf7 19.Rfd1 Bd6 (19...Qd7 20.Bd3+/–) 20.Nc5 (20.Nd6!? Qd6 21.Bd3+–) 20...Bc5+= 21.Qc5 Qe7 (21...Qe8 22.a4+/–) 22.Qc2 (better is 22.Qe7!? Ne7 23.Rac1+–) 22...Bg6+= 23.Bd3 Bd3 24.Rd3 Rfe8 25.h3 Rac8 26.Rad1 Qe4 27.Qb3 Kh8 28.a4 c5 29.bc6 bc6 30.a5 c5 31.Qb5 (31.ab6 c4 32.b7 cb3 33.bc8R Rc8=) 31...c4 (31...a6 32.Qa6 Nb4–+) 32.Ra3= c3? (better is 32...Na8=) 33.ab6+/– cb2 34.b7 Rc1 35.b8Q Rd1 36.Kh2 Nc7 37.Qb2 Rb8 38.Qb8 Ne8 39.Ra7 Rb1 40.Qg3 g6 41.Rd7 Rf1 42.Rd8 Kg7 43.Qf3 Qf3 44.gf3 Kf8 45.Kg2 Rb1 46.Rd7 Ng7 47.Rd8 Ne8 48.Ra8 Rb7 49.Ne6 Ke7 50.Nf4 Rd7 51.e4 Kf7 52.Nd5 f5 53.Ra6 Nc7? (better is 53...g5+/–) 54.Ra7+– Nd5 55.Rd7 Ke6 1–0. Chirpii,Alexandru (2005) – Leonov,Evgeny, Ilichevsk Sunny Pawn op, 2008.

5.c4 d4 6.ed4+= ed4 7.Qe2 (7.Qf3 Ne7 (7...c5 8.Qb7 Qe7 9.Qe7 Be7 10.Nf3 Nd7+/–; 7...c6 8.Qe4 Qd7 9.Ne2 c5 10.Nf4 Kf7+/–) 8.Bd3 Nd7 9.Bd4 c5 10.Bc3 Nb6+=; 7.Qh5 Bf7 (7...g6 8.Qf3 c5 9.Qb7 Nd7 10.Nf3 Bf5+=) 8.Qe2 Ne7 9.Qe4 Bg6 10.Qd4 Qd4+=) 7...Kf7 8.Qe4 c5 9.Qb7 Nd7 10.Bd3 (10.Be2 Qc8+=) 10...Bd6 (10...Qb8+=) 11.Ne2 Ne7 12.f4 f5 13.0–0 Qa5 14.g4 (better is 14.Ba3!? Qb6 15.Qf3+=) 14...Rab8=+ (14...fg4? 15.f5 Bd5 16.cd5+/–) 15.Qg2 Nb6 (< 15...fg4 16.f5 Bd5 17.cd5+/–) 16.gf5 Bc4–/+ 17.Bc4 Nc4 18.Qe4 Nb2 19.Qe6 Ke8 20.Qd6 Rb5 21.Re1 Rb6–+ 22.Qe5 Nd3 23.Qe4 Ne1 24.Qa8 Kf7 25.Qh8 Nc2 26.f6 Rf6 (26...Rf6 27.Qh7 Na1 28.Qh5 g6 29.Qh7 Ke8 30.Qh8 Rf8–+; 26...Na1?? 27.Qg7 Ke6 28.Qe7 Kd5 29.f7 Rb1 30.Kg2+–; 26...Kf6 27.Nbc3 Na1 28.Ne4 Ke6 29.Qg7–+) 0–1. Stabenow,Juergen – Essegern,Kurt, corr DDR–ch, 1980.

5.c4 Nd7 6.Qc2 Ne7 7.Nf3 Bf5 Black gets strong initiative 8.d3 dc4 9.Qc4 Nb6 10.Qb3 Qd6 11.Ba3 Qd7 12.Be2 0–0–0 Will d3 fall? 13.e4 (13.Nc3 Be6 14.Qc2 Ned5 15.Bf8 Rhf8=) 13...Be6+= 14.Qc2 (14.Qc3 Kb8+=) 14...Qb5–/+ 15.d4 (better is 15.0–0!?–/+) 15...Qa5–+ 16.Nc3? (16.Nfd2 ed4 17.0–0–+) 16...ed4 17.Bb2 dc3 18.Bc3 Qa4 19.Qa4 (19.Qb1 Qc6 20.Bb4 f5 21.ef5 Bf5–+) 19...Na4 20.Nd4 Ba2 (better is 20...Bf7 21.Bg4 Kb8 22.Ne2–+) 21.Ra2 (21.Nb5 a6 22.Ra2 ab5–+) 21...Nc3 22.Ra7 (22.Bg4 f5! 23.Nf5 Na2 24.Ne7 Kb8–+) 22...Rd4 23.Bf3 (23.f3 Nc6 24.Ra1 Kd7–+) 23...Ne4 24.Ra8 Kd7 25.0–0 (25.Be4 Re4 26.Kd2 Ng6–+) 25...Nd2 (25...Nd2 26.Bb7 Nf1 27.Kf1 c5–+) 0–1. Zimmer,Georg – Maurer,W, corr SOK–89–43, 1989.

5.c4 e4 6.cd5= Qd5 (6...Bd5 7.Nc3=) 7.Nc3+= Qe5 8.f4 ef3 9.Nf3 (worse is 9.gf3 Qh5+=) 9...Qh5 10.Be2 Bd6 11.Ne4 Qd5 12.Qc2 Nd7 (12...a6 13.Nd4 ab5 14.Nd6 cd6 A) 15.Nb5?! Qg2 16.Rf1 Na6+= (16...Ra2?? 17.Nd6 Kd8 18.Ra2+–); B) 15.Bb5?! Kf7+/–; C) 15.Ne6?! Qe6 16.Bb5 Kd8+–; D) 15.e4+–) 13.Nd6 (13.Nd4 0–0–0+/–) 13...cd6+= 14.Nd4 (14.0–0 Nc5+=) 14...Qg2 15.Bf3 Qh3 16.Bb7 (16.Rg1 Qh4 17.Rg3 Nc5 18.Ne6 Ne6 19.Bb7 Qh2 20.Qc6 Ke7 21.Rg7 Ng7 22.Ba8 Qg1 23.Ke2 Qg4 24.Kd3 Qf5 25.e4 Qh3 26.Kc2 Qd7+–) 16...Qh4 (16...Rb8 17.Rg1 Qh2 18.Rg7 Qh4 19.Kf1 Bh3 20.Bg2+=) 17.Ke2 (17.Kd1 Rb8+=) 17...Bg4= 18.Nf3 Rb8 19.Rag1 (19.Qc7 Qh5 20.a4 Ne7+=) 19...Ne7 20.Bc6 (20.Qc7 Bf3 21.Bf3 Qa4=) 20...Nc6+= 21.bc6 The passed pawn on c6 quickly leads to threats 21...Ne5 (21...Nc5 22.h3 Bf3 23.Kf3 Qh5 24.Kg3+=) 22.Be5 Bf3 (22...de5 23.c7 Bf3 24.Kf3 Qh5 25.Ke4 f5 26.Kd3+–) 23.Kf3 fe5 (23...de5 24.c7 Qh5 25.Kf2 Qh4 26.Ke2 Qh5 27.Ke1 Qh4 28.Kd1+–) 24.Rg3 Qh5 25.Kf2 0–0 26.Ke1 Rf7 27.d3 (27.e4!?=) 27...e4 28.Rf1?? (28.de4 Qe5 29.c7 Qa5 30.Ke2 Qb5 31.Kd1 Rc7 32.Qb3 Qb3 33.ab3 Rb3 34.Kd2–+) 28...ed3 (28...ed3 29.Rg7 Rg7 30.Qc4 Kh8 31.Qd3 Qa5 32.Kd1 Rg2 33.Qd4 Kg8–+) 0–1. Stobbe,Arthur J – Krasny,Henryk Jan, corr 3GMM–32, 1996.

5.d3 a6 6.a4 Bd6 (6...ab5 7.ab5 Bb4 8.Nd2 Ra1 9.Qa1+=) 7.Nf3 (7.d4 Nd7+=) 7...Ne7 (7...Qd7 8.Nc3+=) 8.c4 (8.Be2 ab5 9.ab5 Ra1 10.Ba1 0–0+=) 8...0–0 (8...ab5 9.ab5 Ra1 10.Ba1+=) 9.Be2 Bb4 (9...ab5 10.ab5 Ra1 11.Ba1+=) 10.Nbd2 (10.Bc3 Bc3 11.Nc3 c5=) 10...dc4 (10...ab5 11.ab5 Ra1 12.Ba1+=) 11.dc4 1–0. Goldmund,Heike – Pech,Jaroslav, FICGS, 2013.

5.d3 c6 6.a4 Bb4 7.c3 Ba5 8.Nd2 Ne7 9.Nb3 Nd7 10.Nf3 0–0 11.Nfd2 Bc7 12.Ba3 f5 13.Be2 Rf6 14.Nc5 (14.0–0 Ng6=) 14...Nc5+= 15.Bc5 b6 16.Be7 Qe7 17.0–0 Rh6 18.g3 f4 19.Bg4 Rg6 (19...Bg4!? 20.Qg4 Qc5 21.ef4 ef4+=) 20.Be6= Qe6 21.e4 Bd6 22.ed5 (22.bc6 fg3 23.fg3 Bc5 24.Kg2 Qc6 25.ed5 Qd5 26.Ne4 Rd6=) 22...cd5+= 23.Qf3 Rf8 24.Qg2 Rgf6 25.Nf3 e4 (25...Qc8 26.Rac1–/+) 26.de4 (26.Nd4 f3 27.Qh1 Qc8–/+) 26...de4 (26...fg3!? 27.fg3 Qe4–/+ (worse is 27...de4 28.Nd4 Rf1 29.Rf1=)) 27.Ng5+= f3 28.Qh3 Qh3 29.Nh3 h6 30.a5 Rf5 31.ab6 ab6 32.Rfe1? (better is 32.Rfd1!? Bb8 33.c4–/+) 32...Rh5–+ (32...Rb5?! 33.Rad1 Bc5 34.Re4–/+) 33.Rad1 Bc7 (33...Rh3 34.Rd6 Rf5 35.Rb6+=) 34.Rd7 Rf7 (34...Rh3?! 35.Rc7 Rf5 36.Re4 Rb5 37.Re1=) 35.Rf7 Kf7 36.Nf4 Bf4 37.gf4 Rb5 38.h3 Rc5 39.Re4 Rc3 40.Rb4 Rc6 41.Kh2 Rg6 42.f5 (better is 42.h4–/+) 42...Rf6?? (better is 42...Rg2 43.Kh1 Kf6 44.Rb6 Kf5 45.Rb5 Ke4 46.Rb4 Ke5–+) 43.Kg3+= g6 (better is 43...Ke8+=) 44.Kf3 (better is 44.fg6 Kg6 45.Rg4 Kf7 46.Rb4=) 44...Rf5–/+ (worse is 44...gf5 45.Kf4+=) 45.Ke3 b5 46.h4 Ke6 47.Rg4 Kf6 48.Rd4 Re5 49.Kf3 Ke6 50.Rd8 Rc5 51.Rg8 Kf5 52.Rf8 Ke5 53.Rg8 (53.Re8 Kf6–/+) 53...Rc3–+ 54.Ke2 Kf5 55.Rb8 Rb3 56.Rb6 h5 57.f3 g5 58.Rh6 Rb4 59.hg5 Kg5 60.Rh8 Rc4 61.Rg8 Kf4 62.Rf8 Ke5 63.Rg8 Kd4 64.Rd8 Kc3 65.Rd5 (65.Rd3 Kb4–+) 65...b4 66.Rh5 (66.Rd3 Kb2–+) 66...Kc2 (66...b3 67.Rh1 b2 68.Ke3–+) 67.Ke3?! (67.Rd5 b3 68.Rd2 Kb1 69.Rd1 Ka2 70.Kd3–+) 67...b3 68.Rh2 Kc3 69.f4 b2 70.Rh1 Kc2 71.Kf3 b1Q 72.Rb1 Kb1 73.Kg4 Kc2 74.Kg5 Kd3 75.f5 Ke4 76.f6 Ke5 77.f7 Rf4 0–1. Weyer – Tamm,U, RL Enger2–Halle2, 1993.

5.Bd3 Bd6 6.Qh5 Bf7 7.Qg4 g6 8.e4=+.

5.d4 a5 6.de5+= Nd7 7.Nf3 Bb4 8.Nbd2 Nh6 (8...Bg4 9.ef6 Ngf6 10.a3 Bf3 11.gf3+=) 9.a3+/– Be7 10.ef6 Bf6 11.Nd4 Qe7 12.Ne6 Qe6 13.Bf6 Qf6 14.Be2 (14.Qh5 g6 15.Qd1 0–0=) 14...0–0 Do you see the mate threat? 15.0–0 Qc3 (15...Rae8 16.Nb3 Nb6 17.Na5+–) 16.Nc4 Nf6 17.Qd2 Qd2 18.Nd2 Nf5 19.Rad1 Rfe8 20.Bd3 Nd6 21.c4 c6 (21...Rad8 22.c5 Nde4 23.b6 Nc5 24.bc7=) 22.bc6 (22.b6 Rad8+–) 22...bc6+/– 23.cd5 Nd5 24.Rc1 (24.Rc1 Nb5 25.Bb5 cb5 26.Rc5+–) 1–0. Trigance,Eric – Schirmer,Michael, corr SOK–92–81, 1992.

5.d4 Nd7!?=+.

5.d4 e4 6.Nd2 Qd7 7.c4 dc4 8.Nc4 Bb4 9.Nd2 f5 10.a3 Ba5 11.Qh5 Bf7 12.Qg5 Bd5 13.Rc1 c6 14.Ne2 cb5 15.Nc3 Bc3 16.Bc3 a6 17.Be2 Nf6 18.Bb4 Nc6 19.Bc5 Rb8 20.Qg3 Rg8 21.0–0 b6 22.Bd6 Rc8 23.a4 ba4 24.Nc4 Qa7 25.Ba3 Ra8 26.f3 b5 27.Nd6 Kd8 28.fe4 Be4 29.Bf3 b4 30.Ne4 fe4 31.Rc6 ef3 32.Rf6 ba3 33.Rd6 1–0. van Rooijen,Peter – Mullen,John, IECC, 2000.

5.d4 g6 6.de5+= Nd7 7.Nf3 c5 8.c4 (better is 8.bc6 bc6 9.Nd4+/–) 8...Qa5? (8...dc4 9.Nbd2 Qa5 10.ef6 c3 (worse is 10...Ndf6 11.Qc2+/–; worse is 10...Ngf6 11.Qc2+=) 11.f7 Bf7+= (worse is 11...Kf7 12.Nc4 Bc4 13.Bc4 Ke7 14.Bc1+=)) 9.Bc3+– Qb6 10.cd5 0–0–0? (10...Bg4 11.Qa4 c4+–) 11.de6 Qe6 (11...Ne5 12.Qa4 Nf3 13.gf3+–) 12.Nbd2 (12.Qa4 Kb8 13.ef6 Ngf6+–) 12...fe5 13.Rc1 Re8 (13...Ngf6 14.Qa4 Kb8 15.Bc4+–) 14.Nc4 Qf5 15.Qa4 a6 (15...Kb8+–) 16.ba6 e4 (16...ba6 17.Qa6 Kd8 18.Qa5 Ke7 19.Nce5+–) 17.Rd1 (better is 17.a7 Kc7 18.Bh8 Ra8+–) 17...b5 18.Qb5 (18.Bh8 ba4 19.a7 Kb7+/–) 18...Rd8 19.Qb7 1–0. Taulien,Hans_Juergen – Stahn,Hartmut, remoteschach.de, 2002.

5.Be2 c5 6.bc6 Nc6=+ 7.Nf3 Qb6 8.Bc3? d4–+ 9.ed4 ed4 10.Nd4 Nd4 11.a3 0–0–0 12.Bb4 Bf5 13.Nc3 Nc2 14.Kf1 Bb4 15.ab4 Na1 16.Qa1 Rd2 17.b5 Kb8 18.Na4 Qe6 19.Bf3 Qc4 20.Kg1 Rc2 21.Qf1 Rc1 22.Bd1 Qf1 23.Kf1 Rd1 (23...Rd1 24.Ke2 Rh1–+) 0–1. icewater – Caissa, Live Game Caissa's Web, 2005.

5.a4 Bc5

6.Nf3 a5 7.Be2 Nh6 8.0–0 0–0 9.h3 c6 10.Nh2 Nd7 11.Na3 Qe7 12.c4 Nf7 13.Nc2 dc4–/+ 14.d4 cd3! 15.Bd3 Rad8 16.Qb1 f5 17.Ne1 e4 18.Bc2? cb5 19.ab5 b6 20.f3 Be3 21.Kh1 ef3 22.Nef3 Ng5 23.Re1 f4 24.Ng5 Qg5 25.Be4 Nc5 26.Bf3?? Bf5 27.Qa2 Be6 28.Qa3?? Rd2 29.Qc3 Bh3! 30.Rg1 Qg3 31.Bd5?? Kh8 32.Raf1?? Bg1 33.Rg1?? Rd5 34.Nf1 Qg6 35.gh3 Rg5 36.Rg5 Qg5 37.Qe5 Qe5 38.Be5 Re8 39.Bc7 Re1 40.Kg2 Rb1 41.Bf4 Rb5 42.Ne3 Ne4 43.Nc4 Rb4 44.Na3 g5 45.Be5 Kg8 46.Nc2 Kf7 47.Kf3 Nf6 48.Bf6 Kf6 49.Kg3 Rb3 50.Kg4 Kg6 51.Nd4 h5 0–1. poganinbezdom – davidtiger (1750), internet, 2011.

6.Nf3 Ne7 7.h4 0–0 8.h5 a6 9.g4 Bg4–+ 10.Rg1 Bh5 11.Nc3? e4 12.Nh4 Bd1 13.Kd1 g5 14.Ng2 ab5 15.Bb5 Nbc6 16.Nf4 Kh8 17.Ne6 Qd6 18.Nf8 Rf8 19.Ne2 Ne5 20.Nd4 c6 21.Be2 Bd4 22.Bd4 c5 23.Bb2 N7c6 24.Bb5 d4 25.Bc6 bc6 26.a5 Nc4 27.Rb1 de3 28.Bc3 ef2 29.Rf1 Ne3 30.Ke2 Nf1 31.Rf1 g4 32.Rf2 g3 33.Rg2 Qf4 34.Kd1 Qf3 35.Re2 g2 36.Bf6 Rf6 (36...Rf6 37.c3 g1Q 38.Kc2 Qd3 39.Kb2 Qb5 40.Ka2 Qgb1 41.Ka3 Qa5) 0–1. xtom – lukaszz91 (1625), internet, 2011.

5.a4 c6

6.Nf3 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3 c6 6.a4).

5.Qc1 c5

6.c4 Ne7 A) 7.Qc2 Qd7 (7...a6 8.Nc3 Bf5 9.Qb3 d4 10.Nce2 ab5+=; 7...Nd7 8.Nf3 Bf5 9.d3 dc4 10.Qc4 Nb6+=; 7...Qd6 8.Nc3 Nd7 9.cd5 Nd5 10.Nd5 Bd5=) 8.Nf3 a6 9.cd5 Nd5 10.e4 Nb4–/+; B) 7.a3 Nd7 (7...a6 8.cd5 Nd5 9.Nc3 Be7 10.ba6 Na6+=) 8.Qc2 Bf5 9.d3 dc4 10.Qc4 Nb6+=; C) 7.a4 a6 (7...Qd6 8.Nc3 Nd7 9.a5 f5 10.cd5 Nd5+=; 7...Qd7 8.Ba3 Qd6 9.d4 Nd7 10.cd5 Nd5=; 7...Nf5 8.cd5 Bd5 9.Nc3 Be6 10.Ne4 Qd5=; 7...Nd7 8.a5 a6 9.cd5 Bd5 10.b6 Nc6+=; 7...Ng6 8.cd5 Bd5 9.Nc3 Bb3 10.Nf3 Be7=; 7...a5 8.d3 Nd7 9.Nf3 Nb6 10.Be2 Ng6=; 7...Bf5 8.d4 Nd7 9.de5 Ne5 10.Be5 fe5+=) 8.d4 cd4 9.ed4 ed4 10.c5 Nf5+=; D) 7.Ne2 Nd7 (7...a6 8.Ng3 d4 9.a4 Nf5 10.Nf5 Bf5+=) 8.Nec3 Nb6 9.cd5 Ned5 10.Nd5 Nd5+=; E) 7.cd5 Nd5 8.Nc3 Nb4 9.Nf3 c4 10.Qb1 a6+=; F) 7.Bd3 a6 (7...Nd7 8.Qc2 g6 9.e4 de4 10.Be4 Qc7+=; 7...Ng6 8.Qc2 Nh4 9.g3 Ng6 10.cd5 Qd5+=) 8.Qc2 ab5 9.cd5 Nd5 10.Bh7 Qd7+=; G) 7.Qc3 a6 (7...Nd7 8.d3 d4 9.Qd2 g6 10.Be2 Nf5+=; 7...Ng6 8.Qc2 Nh4 9.Qa4 d4 10.g3 Nf5+=; 7...Nf5 8.cd5 Qd5 9.Qc2 Nh4 10.f3 Qd7+=; 7...Qb6 8.a4 Qd6 9.a5 Nd7 10.Be2 0–0–0+=; 7...Qd6 8.Qc2 Nd7 9.Nc3 Nb6 10.d3 Rd8+=; 7...Qc7 8.Be2 Nd7 9.d3 d4 10.Qc2 Nf5+=; 7...Kf7 8.Be2 a6 9.ba6 Na6 10.d3 d4+=) 8.Qb3 Qd7 9.Nc3 ab5 10.Nb5 Nbc6+=; H) 7.Be2 a6 (7...Ng6 8.Qc2 Nh4 9.g3 Ng6 10.f4 Bf7=; 7...Nd7 8.Qc2 Qb6 9.a4 Qa5 10.Nf3 Bf5+=; 7...Nf5 8.cd5 Bd5 9.f3 Nd6 10.Nc3 Be6+=; 7...Qd7 8.d3 a6 9.Nc3 ab5 10.Nb5 Nbc6+=) 8.d4 cd4 9.ed4 ed4 10.c5 Nf5+=; I) 7.Qd1 Nd7 8.d3 a6 9.ba6 Ra6 10.Nf3 Qb6+=; J) 7.Nf3 Nd7 (7...e4 8.Ng1 a6 9.Nc3 dc4 10.ba6 Na6=) 8.d4 cd4 9.ed4 Rc8 10.de5 fe5+=.

6.Qd1 A) 6...Nh6 7.c4 (7.d4 cd4 8.ed4 Qc7 9.de5 fe5 10.Nf3 Bb4+=) 7...dc4 (7...Bd6 8.cd5 Bd5 9.Nc3 Be6 10.Qf3 Qd7=; 7...Be7 8.cd5 Qd5 9.Qc2 Qd7 10.Nf3 Nf5=) 8.Qc2 a6 9.Bc4 Bc4 10.Qc4 ab5+=; B) 6...Bd6 B1) 7.Qh5 g6 8.Qd1 Ne7 9.Be2 0–0 10.Nc3 a6+=; B2) 7.Nc3 Nh6 (7...Ne7 8.Qh5 g6 9.Qf3 0–0 10.a4 f5–/+ ; 7...Nd7 8.Be2 Ne7 9.Nh3 Bh3 10.gh3 f5–/+) 8.Qf3 Nf7 9.e4 d4 10.Nd5 Ng5–/+; B3) 7.d4 cd4 (7...Nd7 8.de5 Be5 9.Bc3 Ne7 10.Nf3 0–0+=; 7...Ne7 8.de5 Be5 9.Be5 fe5 10.Nf3 e4+=) 8.ed4 Nd7 9.Nf3 e4 10.Nfd2 Rc8+=; C) 6...Be7 C1) 7.Be2 Nh6 (7...Nd7 8.Bh5 g6 9.Be2 Qc7 10.Nf3 Bd6+=; 7...Qb6 8.a4 Nh6 9.a5 Qc7 10.c4 dc4+=; 7...Bd6 8.Bh5 g6 9.Bg4 Bg4 10.Qg4 f5+=; 7...a6 8.d4 ed4 9.ed4 Qb6 10.a4 c4+=) 8.d4 ed4 9.ed4 c4 10.a4 a6+=; C2) 7.d4 Nd7 (7...ed4 8.ed4 c4 9.Qh5 Bf7 10.Qg4 Bg6+=; 7...cd4 8.ed4 Nd7 9.de5 fe5 10.Nf3 Bb4+=) 8.de5 fe5 9.Be2 Ngf6 10.Nf3 Bd6+=; C3) 7.Nc3 d4 (7...Nh6 8.Qh5 Nf7 9.Be2 g6 10.Qh4 d4+=; 7...Nd7 8.Qf3 Nb6 9.Qg3 g6 10.d4 cd4+=; 7...Bd6 8.Qh5 g6 9.Qf3 e4 10.Qd1 Ne7+=) 8.Ne4 Nh6 9.Qh5 Bf7 10.Qe2 0–0+=; C4) 7.Qh5 g6 8.Qf3 c4 9.Nc3 a6 10.a4 ab5+=; C5) 7.c4 dc4 (7...Nh6 8.cd5 Qd5 9.Qc2 Qd7 10.Nf3 Nf5=) 8.Qc2 Nd7 9.Bc4 Bc4 10.Qc4 Nb6+=; D) 6...Nd7 D1) 7.Nc3 Bd6 (7...Ne7 8.Be2 Ng6 9.Nf3 e4 10.Ng1 Bd6+=; 7...d4 8.Ne4 f5 9.Ng3 Ngf6 10.Nf3 Ne4+=; 7...Nb6 8.a4 d4 9.Ne4 Nh6 10.ed4 cd4+=) 8.Be2 Ne7 9.Bh5 g6 10.Be2 0–0+=; D2) 7.Be2 Nh6 (7...Bd6 8.Bg4 Bf7 9.Bh5 g6 10.Be2 Qc7+=; 7...Qa5 8.a3 0–0–0 9.a4 Bd6 10.Bc3 Qc7+=; 7...a6 8.Bg4 Bg4 9.Qg4 ab5 10.Nc3 Nb6+=; 7...Qc7 8.Bg4 Bg4 9.Qg4 Ne7 10.Nc3 d4+=; 7...Rc8 8.Bh5 g6 9.Be2 Bd6 10.Nf3 Qc7+=; 7...Ne7 8.d4 cd4 9.ed4 Nf5 10.Nf3 Qa5–/+; 7...Qe7 8.d4 cd4 9.ed4 Rc8 10.Ba3 Qf7+=) 8.Nc3 Bd6 9.Bh5 Nf7 10.Bf7 Bf7–/+; D3) 7.d4 cd4 (7...Bd6 8.de5 fe5 9.Qh5 g6 10.Qd1 Ngf6–/+) 8.ed4 Rc8 9.de5 fe5 10.Nf3 Bf5–/+; D4) 7.Ne2 Nh6 (7...Nb6 8.Ng3 Na4 9.Ba3 Qa5 10.e4 Ne7+=; 7...Rc8 8.Ng3 Bd6 9.e4 Ne7 10.Qh5 Bf7+=; 7...Qb6 8.Nec3 0–0–0 9.a4 Qa5 10.Qf3 e4–/+; 7...Bd6 8.Ng3 Ne7 9.Be2 0–0 10.0–0 Qb6+=) 8.Nec3 Nb6 9.Be2 d4 10.Ne4 Bd5–/+; D5) 7.a4 Qa5 (7...Nh6 8.a5 a6 9.d4 cd4 10.ed4 ab5–/+; 7...Rc8 8.Nc3 d4 9.Nb1 Bd6 10.Qh5 g6+=; 7...Rb8 8.Nc3 Bd6 9.Be2 Ne7 10.Bh5 g6+=; 7...Ne7 8.a5 a6 9.b6 Nc6 10.Qf3 Nb4–/+; 7...c4 8.Nf3 a6 9.Be2 ab5 10.ab5 Ra1+=; 7...Bd6 8.a5 a6 9.Qh5 g6 10.Qe2 Ne7–/+) 8.Bc3 Qc7 9.Be2 Bd6 10.a5 Nh6–/+; D6) 7.Qf3 Bd6 8.Qg3 Qe7 9.Nc3 f5 10.Nh3 d4–/+; D7) 7.Qh5 g6 (7...Bf7 8.Qf3 Bd6 9.Qg4 g6 10.Nc3 Ne7+=) 8.Qd1 Bd6 9.Nf3 Qc7 10.a4 Ne7+=.

6.d3 Qa5 7.Nd2–/+ c4 8.Ne2 Qb5 9.dc4 dc4 10.Nc3 Qa6–/+.

6.d3 a6 7.d4 (7.ba6 Na6 8.d4 cd4 9.ed4 Qb6 10.Nf3 e4+=) 7...Nd7 (7...cd4 8.ed4 Bb4 9.Nd2 Qb6 10.a3 Be7=; 7...ed4 8.ed4 c4 9.ba6 Na6 10.Be2 Bf5+=; 7...Bd6 8.de5 fe5 9.Nf3 Nd7 10.e4 de4+=) 8.de5 fe5 9.ba6 ba6 10.Nf3 e4+=.

6.d3 d4 7.a4 (7.c4 a6 (7...Bd6 8.Be2 a6 9.a4 ab5 10.ab5 Ra1+=) 8.a4 Bd6 9.Be2 Ne7 10.Bh5 g6+=; 7.c3 de3 (7...Qa5 8.a4 de3 9.Qe3 Ne7 10.Be2 Nd5+=; 7...Nh6 8.cd4 cd4 9.ed4 ed4 10.Nf3 Nf5=; 7...Ne7 8.cd4 cd4 9.ed4 ed4 10.Nf3 Nf5=) 8.Qe3 Ne7 9.Nf3 Nf5 10.Qe4 Qd7+=) 7...a5 (7...Bd6 8.Be2+= Nh6 9.Nf3 0–0 10.c4 a6+=; 7...a6 8.c4 ab5 9.ab5 Ra1 10.Ba1 Nh6+=; 7...Ne7 8.Be2 a6 9.c4 Nf5 10.Qd2 ab5+=) 8.Nf3 (8.Be2 Bd6 9.Bh5 Kd7 10.Ne2 Ne7=) 8...Nh6 (8...Bd6 9.Be2 Qb6 10.0–0 Nh6=) 9.Be2 Be7 (9...Bd6 10.0–0 0–0=) 10.c3 (10.0–0 Nf5=) 10...de3 (10...Nf5=) 11.fe3 Nd7 12.0–0 0–0 13.Ba3 (13.c4 Nb6=) 13...Rc8 (13...f5 14.Nfd2+=) 14.Nbd2 (14.c4 f5=) 14...f5 15.Nc4 (15.e4 Ng4=) 15...Bc4+= 16.dc4 e4 17.Ne1 b6 18.g3 Ne5 19.Qc2 (19.Ng2 Bg5–/+) 19...Qc7 (19...Bg5 20.Ng2–/+) 20.Rd1 Rcd8 21.Ng2 Ng6 22.Rd5 Bd6 23.Nf4 Ne7 (better is 23...Bf4!? 24.ef4 Ne7 25.Rd8 Rd8+=) 24.Ne6+= Qb8 (24...Nd5!? 25.cd5 Qd7=) 25.Nd8 (25.Nf8?! Nd5 26.cd5 Rf8=) 25...Nd5 (better is 25...Rd8 26.Rdd1 Be5+/–) 26.cd5?? (better is 26.Nc6 Ne3 27.Qd2+–) 26...Qd8+= 27.Bd1 g6 (27...Qg5 28.Bc1+=) 28.c4 (28.Be2 Qg5=) 28...Be5 (28...Qg5 29.Qb3=) 29.Bc1 (29.Bb2 Nf7=) 29...Qd6 (29...Nf7 30.Qf2+=) 30.Qf2 Ng4 31.Bg4 (31.Qg2 Nf6=) 31...fg4 32.Qf8 Qf8 33.Rf8 Kf8 34.Kf2 h5 35.Bd2 Ke7 36.Be1 Kd6 37.h3?? (37.Ke2 g5=) 37...Bf6?? (better is 37...gh3 38.Kg1 g5–+) 38.hg4= hg4 ½–½. Zielke,Bernd (1640) – Wenske,Hardy, It (open) Kiel (Germany), 2006.

6.d3 Bd6 A) 7.Nf3 Ne7 (7...Nh6 8.c4 a6 9.cd5 Bd5 10.ba6 Na6+=; 7...Qa5 8.Bc3 Qa4 9.Qb2 Bd7 10.Ne5 Be5–/+; 7...Nd7 8.Qd2 Ne7 9.Be2 Qb6 10.Nc3 a6+=) 8.Nc3 a6 9.ba6 Na6 10.Be2 Nc7–/+; B) 7.d4 cd4 (7...Nd7 8.de5 fe5 9.e4 d4 10.Nd2 Ngf6–/+; 7...Ne7 8.de5 fe5 9.Nf3 Nd7 10.Ng5 Bg8+=; 7...Qc7 8.dc5 Bc5 9.Nf3 Ne7 10.Be2 Bb4+=; 7...Nh6 8.de5 fe5 9.Nf3 Qf6 10.c4 d4+=) 8.ed4 Nd7 9.Nf3 Rc8 10.de5 fe5–/+.

6.d3 Nd7 A) 7.a4 Bd6 (7...a6 8.c4 Ne7 9.Nf3 ab5 10.ab5 Ra1+=) 8.Nf3 Ne7 9.Be2 Qc7 10.Nbd2 Rd8+=; B) 7.Qd2 Bd6 8.Nf3 Ne7 9.Be2 Qb6 10.Nc3 a6+=; C) 7.Nd2 a6 (7...Nh6 8.Ngf3 Bd6 9.Be2 a6 10.ba6 Ra6+=; 7...d4 8.c4 a6 9.ba6 Ra6 10.Be2 Qa8+=; 7...Bd6 8.Ngf3 Ne7 9.Be2 0–0 10.c4 a6+=; 7...Qa5 8.c4 d4 9.Be2 Bd6 10.Ngf3 a6=) 8.ba6 Ra6 9.d4 c4 10.de5 fe5+=; D) 7.c4 Nb6 (7...Qa5 8.Qd2 Qd2 9.Nd2 a6 10.ba6 Ra6+=; 7...a6 8.cd5 Bd5 9.Nc3 Qa5 10.ba6 Ra6=; 7...Ne7 8.Nf3 Qb6 9.Be2 dc4 10.dc4 g5=; 7...dc4 8.dc4 Qb6 9.Qc2 0–0–0 10.Bd3 Ne7=; 7...Bd6 8.cd5 Bd5 9.Nc3 Qa5 10.Nf3 Bf3+=) 8.a4 a5 9.ba6 Ra6 10.cd5 Bd5+=.

6.d4 A) 6...Nd7 7.de5 fe5 (7...Ne5 8.Qd2 Bd6 9.Be2 Qc7 10.Nf3 Ne7+=) 8.Nf3 e4 9.Nfd2 c4 10.Qd1 Ngf6+=; B) 6...Bd6 7.de5 (7.dc5 Bc5 8.Nf3 Ne7 9.Be2 a6 10.0–0 ab5+=) 7...fe5 8.Nf3 Nd7 9.e4 d4 10.Ng5 Bg4=; C) 6...cd4 7.ed4 Nd7 (7...Bd6 8.de5 fe5 9.Nf3 Nd7 10.Bd3 Qf6+=; 7...Bb4 8.Nd2 Nd7+= 9.a3 Bd6 10.Qd1 Ne7+=) 8.Qd2 Bd6 9.Be2 Ne7 10.Bh5 g6+=.

5.Nc3 Be7

6.Be2 a6 7.a4 (7.Nf3 ab5 8.Nb5 (8.Bb5 c6 9.Be2 Nh6 10.d4 e4 11.Nd2=+) 8...c6 9.Nc3 Nh6 10.0–0 0–0 11.a4=+; 7.ba6 Na6 8.f4 (8.Bh5 g6 9.Be2 Nh6 10.Nf3 Nf5 11.0–0=+; 8.Nf3 Nh6 9.0–0 0–0 10.Re1 Nf5 11.d3=+; 8.Bg4 Bf7 9.Be2 Nh6 10.Nf3 0–0 11.0–0=+) 8...ef4 9.ef4 Nc5 10.d4 Ne4 11.Bh5=+) 7...c5 (7...d4 8.ed4 (8.Ne4 ab5 9.ab5 Ra1 10.Qa1 Bd5 11.Bh5=) 8...ed4 9.Nb1 Nh6 10.Nf3 Bc5 11.0–0=; 7...ab5 8.ab5 Ra1 9.Ba1 Nh6 10.Nf3 0–0 11.0–0=+; 7...Bb4 8.f4 (8.Nf3 Ne7 9.0–0 0–0 10.Na2 Bd6 11.Nc3=+) 8...ab5 9.ab5 Ra1 10.Qa1 ef4 11.ef4=; 7...Bd6 8.Bh5 (8.Nf3 Ne7 9.0–0 0–0 10.d4 e4 11.Nd2=+) 8...g6 9.Be2 Nh6 10.Nf3 0–0 11.0–0=) 8.Nf3 (8.bc6 Nc6 9.Nf3 Nh6 10.Rb1 0–0 11.0–0=+; 8.Bh5 g6 9.Be2 d4 10.Ne4 Bd5 11.Bf3=+; 8.ba6 Na6 9.Bb5 Kf7 10.Qf3 Nb4 11.Rc1=+; 8.d4 cd4 9.ed4 Bb4 10.Bh5 g6 11.Bg4=+; 8.Ba3 Nh6 9.d4 cd4 10.ed4 Qa5 11.Qd2–/+) 8...e4 (8...d4 9.Ne4 f5 10.Ng3 e4 11.Nh5=) 9.Ng1 ab5 (9...Nh6 10.f3 f5 11.fe4=) 10.Bb5 Nc6 (10...Nd7 11.d3=) 11.f3 f5 12.fe4 fe4 13.Ne4 de4 14.Bg7 Bh4 (14...Bh4 15.g3 Bf6 16.Bh8 Bh8 17.Bc6 bc6=).

6.Nf3 c5 7.Be2 a6 8.ba6 ba6 9.d4 cd4=+ (9...e4 10.Nd2 cd4 11.ed4 Bd6 12.Rb1 Ne7 13.Bg4 f5=+) 10.ed4 Nc6 (10...e4 11.Nd2 Bd6 12.Nb3 Qc7 13.Rb1 Ne7=+; 10...Nh6 11.de5 fe5 12.Ne5 d4 13.Bh5 g6+/–) 11.Rb1 e4 (11...Qa5 12.0–0 Rb8 13.Qd2 e4–/+) 12.Ng1 Qa5 (12...Rb8 13.Qd2 Qa5–/+) 13.Ba1 (13.Qd2 Rb8–/+) 13...Bb4 (13...Nh6–/+) 14.Qd2 Rc8 –/+.

5.Nc3 Nh6

6.d4 Be7 7.de5 fe5 8.Nf3 Qd6 9.Be2 0–0 10.0–0 Nd7 11.Rb1 Kh8 12.a4 a6 13.ba6 ba6 14.Qd2 Rab8 15.e4 d4 16.Nd5 Bd5 17.ed5 Qd5 18.c3 c5 19.Ba6 e4–/+ 20.Nd4 cd4 21.cd4 Ng4 22.Qe2 Ngf6 23.Bb5 Bd6 24.Bd7 Nd7 25.Qa6 Qe6 26.Kh1 Rb4 27.Qc6 e3 28.d5 Qh6 29.f4?? Rbf4 30.Rf4 Qf4 31.g3 Qe4 32.Kg1 e2 33.Bg7 Kg8 34.Re1 Rf1! 35.Rf1 Qh1!? (36.Kf2 ef1Q 37.Ke3 Qhf3 38.Kd2 Q3d3#) 0–1. Bestia02c – GnuChess414, computer chess game, 2000.

6.Be2 Bd6 7.a4 0–0 8.Nf3 c5 9.h3 Nd7 10.Nh2 f5 11.d4 cd4 12.ed4 e4 13.g4 (13.Nf1 Qc7 14.Nd2 f4–/+) 13...f4 14.Ba3 Qc7 15.Qd2 f3 16.Bd6 Qd6 17.Bf1 Rac8 18.Nd1 Qc7 19.Ne3 Nf7 20.c4 dc4 (better is 20...Nf6!? 21.Rc1 dc4 22.Bc4 Bc4 23.Rc4 Qd7–/+) 21.d5= Qe5 22.de6?? (better is 22.Rd1 Rfd8 23.de6 Qe6 24.Qc3=) 22...Qa1–+ 23.Nd1? (better is 23.Qd1 Qd1 24.Kd1–+) 23...c3 Threatening mate: cxd2 24.Qd7 (24.Qc2 Nb6 25.ef7 Rf7 26.a5–+) 24...Rfd8 (better is 24...c2 25.Bc4 c1Q–+) 25.Bc4 (25.Qf7 Kh8 26.Bd3 ed3 27.0–0–+) 25...Rd7 26.ed7 c2 (better is 26...Rc4 27.0–0 Rd4–+) 27.Bf7 (27.dc8Q) 27...Kf7–+ (27...Kf7 28.0–0 A) 28...cd1Q? 29.dc8Q Qaa4 30.Qb7 (30.Rd1?! Qd1 31.Nf1 Qd5+–) 30...Kf6 31.Rd1 Qd1 32.Nf1+–; B) 28...Rd8–+) 0–1. Hoelldorfer,August – Isensee,Heinz (1790), Bayern–ch Seniors, 1999.

6.Nf3 a6 7.a4 Nf5 8.e4 de4 9.Ne4 ab5 10.ab5 Ra1 11.Ba1 Bb4 12.Bd3 0–0 13.0–0 Nd6 14.Qe2 Nd7 =.

6.Nf3 g5 7.Be2 g4 8.Ng1 Rg8 9.Bd3 =+.

5.c4 Bd6

6.cd5 Bd5 7.Nc3 Be6 8.Ne4 Ne7 9.Bd3 0–0 A) 10.Nd6 cd6 (10...Qd6 11.Qc2 g6 12.Bc4 c6 13.Ba3 Qa3 14.Be6=) 11.Nf3 (11.Qh5 g6 12.Qe2 Nd7 13.Nf3 d5 14.Bb1+=; 11.Ne2 Nd7 12.0–0 Rc8 13.f4 Nc5 14.Bc2+=) 11...Nd7 12.0–0 Rc8 13.Be2 Qa5 14.a4=; B) 10.Qh5 h6 (10...Bb4 11.Nf6 Rf6 12.Qh7 Kf7 13.Be5 Bf5 14.Bc4=; 10...g6 11.Qe2 a6 12.Bc4 Nd5 13.Nc3 Bb4 14.e4=) 11.a3 (11.Nf3 a6 12.ba6 Na6 13.Bb1 Nc5 14.Nc5+=) 11...a6 12.Nf3 ab5 13.Bb5 Ra5 14.Be2=; C) 10.Nf3 C1) 10...Nd7 11.Qc2 (11.0–0 f5 12.Nfg5 Bd5 13.Nc3 Qe8 14.Nd5+=) 11...f5 12.Bc4 Bd5 13.Bd5 Nd5 14.Qb3+=; C2) 10...Bb4 11.Qc2 Nd5 12.a3 Be7 13.Nc3 h6 14.Bc4+=; C3) 10...Qd7 11.Qc2 (11.0–0 Rc8 12.Qc2 Kh8 13.Rfc1 Bd5 14.Bc4=; 11.Nd6 cd6 12.0–0 Rc8 13.Qa4 Bd5 14.Rfc1=; 11.Qa4 Nd5 12.Nd6 cd6 13.0–0 Nb6 14.Qh4=) 11...Kh8 12.0–0 Bg4 13.Be2 f5 14.Nc5+=; C4) 10...a6 11.Qa4 (11.Qc2 h6 12.Qa4 Nd7 13.ba6 Nb6 14.Qc2=; 11.Nd6 cd6 12.Qc2 f5 13.Ng5 Bd5 14.e4=) 11...c6 12.Bc4 Bd5 13.Nd6 Qd6 14.Ba3=.

6.cd5 Bd5 7.Nc3 Be6 8.Ne4 Ne7 9.Bd3 Bb4 10.Qc2 (10.Qe2 A) 10...Nd5 11.a3 (11.Nf3 a6 12.0–0 0–0 13.Bc2 ab5 14.Qb5=; 11.Bc4 a6 12.a3 Be7 13.ba6 Na6 14.d4+=; 11.Bc2 c6 12.Nf3 a6 13.bc6 Nc6 14.0–0=) 11...Be7 12.Ng3 Qd7 13.Bc4 c6 14.Nf3=; B) 10...Qd5 11.a3 (11.Nf3 Nd7 12.a3 Ba5 13.Bc3 f5 14.Neg5+=; 11.f4 ef4 12.a3 Bd6 13.ef4 Kd8 14.Bf6=) 11...Ba5 12.Bc3 Bb6 13.Ng3 Qd7 14.Nf3=; C) 10...Nd7 11.Nf3 Bd5 12.a3 Ba5 13.Bc2 a6 14.ba6=; D) 10...Bd5 11.a3 (11.Qh5 Bf7 12.Qe2 a6 13.a3 Ba5 14.Nf3+=) 11...Ba5 12.Qh5 Bf7 13.Qe2 0–0 14.Bc3+=) 10...Nd7 (10...Nd5 11.Nf3 (11.Ng3 g6 12.Nf3 a6 13.0–0 Be7 14.Be4=; 11.Nc3 g6 12.a3 Ba5 13.Nf3 Nd7 14.Nd5=; 11.a3 Be7 12.Nc3 g6 13.Nf3 a6 14.Nd5=) 11...Be7 12.Be2 c6 13.0–0 a6 14.d4=; 10...Bd5 11.a3 Ba5 12.f3 a6 13.Nc5 ab5 14.e4=) 11.Ne2 (11.a3 Ba5 12.Nf3 Bd5 13.Bc4 Bc4 14.Qc4=; 11.Nf3 Bd5 12.Bc4 Nb6 13.Bd5 Qd5 14.a3=) 11...Nd5 12.0–0 (12.a3 Be7 13.N4g3 g6 14.Bc4=) 12...0–0 (12...Be7 13.a3= N5b6 14.N4g3=) 13.f4 (13.a3 Be7 14.N4c3+=) 13...Qe7 (13...Re8 14.N4c3+=) 14.fe5 (14.Nf2 g6+=) 14...fe5= 15.N4g3 N5f6 16.Nf5 Qc5 17.Rac1 Qc2 (17...Ba2? 18.Qa4 Qd5 19.Bc2+/– (19.Rc7?! Qd3 20.Nc1 Qd2=)) 18.Rc2 g6 (worse is 18...Ba2 19.Rc7 Rfc8 20.Rfc1 Rc7 21.Rc7=) 19.Nfg3 Bd6 20.Bc4 (20.a3 Rad8=) 20...Bc4+= 21.Rc4 Nb6 (21...a6 22.ba6 Ra6 23.a3+=) 22.Rc2 Nbd5 23.a3 a6 24.e4 Ne7 25.d4 Nd7 (25...ab5?? 26.de5 Be5 27.Be5+–) 26.Rf8 Rf8 27.ba6 ba6 28.Nf1 Nc8 (28...h6 29.Nd2=) 29.Ne3 (29.de5 Ne5 30.Be5 Be5=) 29...Ncb6 (29...ed4 30.Bd4 c5 31.Bb2=) 30.Ng4 (30.de5 Ne5 31.Be5 Be5=) 30...ed4= 31.Bd4 Re8 32.e5 c5 33.Bb2 Bf8 (worse is 33...Be5 34.Be5 Ne5 35.Nf6 Kf7 36.Ne8 Ke8 37.Rc5+–) 34.Nf4 Bg7 (34...h5!? 35.Nf6 Nf6 36.ef6 Kf7=) 35.e6+= Nf8 36.Re2 g5?? (36...Nc4 37.Bg7 Kg7+–) 37.Nh5+– Bb2 38.Ngf6 Kh8 39.Ne8 Bd4 40.Kf1 Ng6 (40...Nd5 41.Nd6 Ng6 42.Nf7 Kg8 43.Ng5+–) 41.Nc7 Ne7 42.Na6 1–0. Stabenow,Juergen (2040) – Strauss,Wolfgang (2075), corr DDR–Cup6 sf12, 1979.

6.cd5 Bd5 7.Nc3 Be6 8.Ne4 Ne7 9.Bd3 f5 10.Nd6 A) 10...cd6 11.Qh5 (11.Nh3 0–0 12.0–0 Nd7 13.f4 Rc8 14.Be2=) 11...g6 12.Qh6 Bd5 13.Nf3 Ng8 14.Qg7=; B) 10...Qd6 11.Be2= 0–0 12.d4 e4 13.Qa4 f4 14.Ba3=.

5.Be2 a6

6.ba6 Na6 7.Nf3 Bd6 8.0–0 Ne7 9.Nc3 (9.d4 e4 10.Nfd2 f5 11.c4 b6 12.c5 bc5=; 9.Ba3 0–0) 10.d4 Nf5 11.Qc1 e4 12.Nfd2 Qe8=+; 9.Na3 c6 10.c4 0–0 11.d4 e4 12.Nd2 b6=+; 9.a4 0–0 10.Nc3 Nf5 11.Nb5 Be7 12.Ba3 Ba3–/+) 9...c6 10.a4 0–0 11.Ba3 Ba3 (11...b6 12.d4 Ba3=+) 12.Ra3 Qa5 13.d4 e4 14.Nd2 Nc7 =+.

6.Nf3 ab5 7.Bb5 c6 8.Be2 Bd6 9.Nc3 Ne7 10.0–0 (10.a4 0–0 (10...b6 11.0–0 0–0 12.Re1 Na6 13.Ba3 Nf5; 10...Nd7 11.0–0 Qb8 12.Ba3 c5 13.Nb5 Nc6; 10...Na6 11.0–0 0–0 12.Ba3 b6 13.d4 Ba3; 10...Ra5 11.Qb1 0–0 12.0–0 b6 13.Ba3 c5) 11.Qb1 b6 12.0–0 Nf5 13.Ba3 c5; 10.Qb1 b5 (10...b6 11.0–0 Nf5 12.d3 0–0 13.Bc1 Qc7; 10...0–0 11.a4 b6 12.0–0 Nf5 13.Ba3 c5; 10...Qa5 11.a4 0–0 12.0–0 Nf5 13.Nb5 Be7; 10...Qc7 11.a4 Nd7 12.Ba3 b6 13.Bd6 Qd6) 11.a4 b4 12.Nd1 0–0 13.c3 Na6) 10...0–0 (10...b6 11.a4 0–0 12.Re1 Qe8 13.Ba3 Ba3; 10...b5 11.a4 b4 12.Nb1 Qc7 13.c3 c5; 10...Qb6 11.Qc1 Qc7 12.a4 Nd7 13.Ba3 b6; 10...Qc7 11.a4 0–0 12.Ba3 b6 13.Bd6 Qd6) 11.a4 b6 (11...Nd7 12.Qb1 Qa5 13.Kh1 b6) 12.Ba3 (12.Re1 Nd7 13.Ba3 Ba3) 12...Ba3 13.Ra3 Qd6 (13...b5) 14.Rb3 d4 (14...d4 15.Ne4 Qd8).

5.Be2 Bd6

6.d4 e4 (6...Nd7 7.de5 Ne5 8.Bh5 Kd7 9.Nc3=) 7.Nd2 (7.Ba3 Ne7=) 7...Ne7=+ 8.c4 c6 (8...Bb4 9.Rc1=+) 9.cd5 (9.c5 Bc7=) 9...cd5 10.Rc1 (10.Bh5 g6 11.Be2 Qa5=) 10...0–0 11.h3 (11.f3 ef3 12.Ngf3 Qa5=) 11...Nd7=+ 12.Rc3 (12.Qa4 Nf5=+) 12...Bb4 13.Rb3 Ba5 (13...Qa5 14.a3 Bd6 15.Rc3=+) 14.Ba3 Rc8 15.Rb1 f5 16.Rc1 Bc3 17.Bd6 Nf6 18.Bc5 Bd2 19.Qd2= Bf7 20.a4 b6 21.Bb4 Qd7 22.Rc3 Rc3 23.Qc3 Rc8 24.Qa3 Ng6 25.Bd6 Ne8 26.Bg3 Nf6 27.Bd1 Qe7 28.Qb2 Qd7 29.Ne2 Qe7 30.Nc3 f4 31.ef4+= Qc7 32.Ne2 Nh5 33.f5 Ngf4 34.Nf4 Nf4 35.0–0 e3 36.Bh2 e2 37.Be2 Qc3 38.Qa2 Ne2 39.Qe2 Qd4 40.Bd6 Qa4 41.Rd1 d4 42.Qg4 Re8 43.f6+= g6 44.Be7 Qb5 45.Qd4 Qe2 46.Ra1+= Ra8 47.Ra7! Rb8 48.Qd6+– Rc8 49.Qb6 Rc1 50.Kh2 Qe5 51.g3 Rc8 52.Rd7 Qf5 53.Rd8 Be8 54.f7! Qf7? 55.Rc8 Qe7 56.Qe3 Kf7 57.Qf4 Kg8 58.Qc4 Kf8 59.Rc7 Qf6 60.Qc5 Kg8 61.Kg2 h6 62.Qd5 Kh8 63.Rc8 Qe7 64.Qc6 Kh7 65.Re8 Qf7 66.Rd8 1–0. Mephisto Mondial – SuperConstellation, 1994.

6.Nf3 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3 Bd6 6.Be2).

5.Be2 Nd7

6.Nf3 Bd6 7.0–0 Qe7 8.d3 0–0–0 9.Nbd2 Nb6 (9...Nh6!?=) 10.a4 +=.

6.Nf3 Bd6 7.0–0 Qe7 8.d4 e4 9.Nfd2 (9.Ne1 A) 9...0–0–0 A1) 10.a4 f5 (10...Nh6 11.Ba3 f5 12.a5 Ng4 13.Bg4 fg4=; 10...Kb8 11.Ba3 f5 12.a5 Ngf6 13.Bd6 Qd6=; 10...Nb6 11.Ba3 Nc4 12.Bd6 Qd6 13.Nd2 f5=; 10...h5 11.c4 dc4 12.Nd2 f5 13.Nc4 Bc4=) 11.Ba3 Ngf6 12.a5 h5 13.Qd2 Rde8=; A2) 10.c4 dc4 11.Nd2 f5 12.Nc4 Bc4 13.Bc4 Ngf6=; A3) 10.Nd2 f5 (10...Kb8 11.c4 b6 12.a4 Bb4 13.Nc2 Bd6+/–) 11.c4 Qh4 12.f4 Bb4 13.c5 Ne7+=; B) 9...Nh6 B1) 10.Nd2 f5 11.c4 dc4 12.Bh5 Bf7 13.Be2 Nb6+=; B2) 10.c4 dc4 11.Nd2 f5 12.Nc4 Bc4 13.Bc4 Bh2–+; B3) 10.a4 0–0 11.Ba3 Ba3 12.Ra3 Nf5 13.a5 c5=) 9...Nb6 (9...f5 10.c4 Qh4 11.h3= Ngf6 12.c5 Be7 13.c6 bc6=) 10.a4 (10.c4 Nc4 11.Nc4 dc4 12.Nd2 f5 13.Nc4 Nf6=) 10...Nh6 (10...a5 11.ba6 ba6 12.a5 Nd7 13.c4 dc4+/–; 10...a6 11.a5 Nd7 12.ba6 ba6 13.c4 dc4+/–) 11.a5 Nd7 (11...Nc8 12.c4 c6 13.c5 Bb8+=) 12.c4 c6 (12...Bb4 13.Bc3+/– dc4+/–) 13.c5 (13.a6 Nf8+/–) 13...Bc7 14.a6 b6 (14...ba6!? 15.bc6 Nb8+/–) 15.bc6+– Nb8 16.cb6 Bb6 17.Qc2 Qc7 18.Rc1 0–0 19.f3 f5 20.Ra3 Rc8 21.Bb5 (21.Qa4!?+–) 21...Nf7+/– 22.Qa4 Nd6 23.Rac3 Nb5 24.Qb5 Ba5 25.Rc5 Bd2 (25...Bb6 26.Rd5 Nc6 27.Ba3+=) 26.Nd2+– Qb6 27.Rd5 Qb5 (27...Bd5 28.Qd5 Kh8+–) 28.Rb5 ef3? (28...Rc6 29.Rc6 Nc6 30.d5+–) 29.Nf3 (better is 29.d5 Bf7 30.gf3 Na6+–) 29...Na6 30.Ng5 Nc7 31.Re5 Rab8? (better is 31...Bd5+–) 32.Ne6 (32.Re6?! Ne6 33.Ne6 Rb2+=) 32...Rb2 33.Nc7 Rc7 34.d5 (34.Rf5 Rd2+–) 34...Rd2 35.Rf5 a5 36.e4 a4 37.Ra1 (37.Rf3 Rc8+–) 37...Rd4 (37...g6 38.Rf6 Rd4 39.Re6+–) 38.Re5 Rb4 (38...Ra7 39.Re8 Kf7 40.Re6+–) 39.d6 (39.d6 Rc6 40.d7+–) 1–0. Fischer,Diana – Bauer,Joerg, BdF, 1983.

6.Nf3 Bd6 7.0–0 Ne7 8.d3 (8.d4 0–0=) 8...0–0+= 9.c4 c6 (9...a6 10.Nc3 ab5 11.cb5–/+) 10.Nbd2 (10.Nc3 Rc8+=) 10...Ng6 (10...cb5!? 11.cd5 Nd5+=) 11.Rc1 Rc8 12.a4 a6 13.cd5 cd5 14.ba6 ba6 15.d4 (15.Rc8 Qc8 16.Qa1 a5=) 15...a5 (15...e4 16.Ne1–/+) 16.Nb3 (16.Rc8 Qc8 17.de5 Nge5=) 16...Qb6 (16...Rc1 17.Qc1 e4 18.Nfd2+=) 17.Bc3? Attacks the isolani on a5 (17.de5 Rc1 18.Nc1 Nde5=) 17...Bb4 (better is 17...Ba3!? 18.de5 fe5–/+) 18.Bb4= Qb4 19.Rc8 Rc8 20.Bb5 Nb6 21.Nc5 Bg4 22.h3 Bf3 23.gf3 (better is 23.Qf3!? ed4 24.Nd3=) 23...ed4–/+ 24.ed4 Nc4 (24...Nh4 25.Kh1 Qc3 26.Ba6–/+) 25.Qe1 (better is 25.Bd7!? Rd8 26.Qe2+=) 25...Qe1–/+ 26.Re1 Nd2 (26...Nh4 27.Kh1 Nf3 28.Bd7 Ne1 29.Bc8–/+) 27.Re3 Nh4 28.f4 (28.Ba6 Rd8–/+) 28...Nhf3 29.Kh1 (better is 29.Kg2!? Nd4 30.Ne6 Nb5 31.ab5–/+) 29...Nd4–+ 30.Ne6 Ne6 (30...Nb5!? 31.ab5 Kf7 32.f5–+) 31.Re6–/+ Rd8 (31...Ne4 32.Ra6–/+) 32.Re3 (better is 32.Kg2!?+=) 32...d4 33.Rd3 (33.Re1 Kf8–/+) 33...Ne4–+ 34.Kg2 Kf7 35.Kf3 f5 36.Bc4 Kf6 37.Kg2 (37.Bb5 Nc3–+) 37...Nc5 38.Ra3? (38.Rd2–+) 38...d3 39.Ra1 (39.Rc3 Rd6–+) 39...d2 (39...Rd4!? 40.Bb5 d2 41.Be2 Ra4 42.Rb1 Rf4 43.f3–+) 40.Be2 Ne4 41.Bd1 (41.Bf3 Nc3 42.Ra3 Rd3–+) 41...Nc3 42.Kf1 (42.h4 Re8 43.Bh5 Re4–+) 42...Re8 (42...Rd4!? 43.Kg2–+) 43.Bb3 (43.Bc2 Rc8 44.Bd1 Rc4–+) 43...Re4 44.Bc2 (44.f3 Rf4 45.Kf2 Rd4–+) 44...Rd4 45.Bd1 g5 (45...Rf4!? 46.Bc2–+) 46.fg5 Kg5 47.Kg2 Kh4 48.Kf1 (48.Bc2 d1Q 49.Bd1 Rd1–+) 48...Kh3 (better is 48...Nd1 49.Rd1 Kh3 50.Ke2–+) 49.Ra3 Rc4 50.Bc2 (50.Rb3–+) 50...Kh2 51.Ra1 (51.f3 Kg3 52.Rb3–+) 51...Rd4 52.Bd1 Rd8 (52...f4 53.Be2 Rd5 54.f3 Kg3 55.Bd1 Rh5 56.Kg1 Re5 57.Be2 Ne2 58.Kf1 Nc1 59.Rc1 dc1Q) 53.f3 (53.f4–+) 53...f4 54.Kf2 Rg8 55.Kf1 Rg1 56.Kf2 Nd1 0–1. Biran,Anastasija – Khachatryan,Nadezhda, Batumi GEO, 2014.

5.Be2 Nh6

6.Nf3 Bd6 7.0–0 c5 8.bc6 Nc6 9.Ba3=+.

6.h3 a6+= 7.ba6 Na6 8.Nf3 c6 9.Ba3 (9.0–0 Qb6 10.Qc1 Bd6+=) 9...Ba3–/+ 10.Na3 Nc5 11.Nb1 d4 12.d3 (12.ed4 ed4 13.0–0 0–0–/+) 12...de3 13.fe3 Nf5 14.e4? (better is 14.Kf2–/+) 14...Ne3–+ 15.Qd2 Ng2 16.Kf2 Nf4 17.Bf1 Qb6 18.Ke1 (18.Kg3–+) 18...Ra2 19.Qc3 (19.Ra2 Qb1 20.Qd1 Qa2 21.Rg1–+) 19...Na4 (19...Na4 20.Ra2 Qe3 21.Kd1 Nc3 22.Nc3 Qf3 23.Ke1 Ba2–+) 0–1. raymac – marekt, ChessWorld.net, 2016.

5.Ne2 Bd6

6.Nec3 Ne7+=.

6.d4 e4 7.Nd2 (7.c4 dc4 8.Nec3 f5=) 7...f5 (7...Ne7 8.c4 c6 9.bc6 bc6 10.a4=) 8.c4 c6 (8...Nf6 9.c5 Be7 10.Nf4+=) 9.Nc3 (9.c5 Bc7+=) 9...Nf6= 10.g3 (10.Qb3 Nbd7=) 10...0–0 (10...dc4 11.Nc4 Bb4 12.a3 Bc3 13.Bc3 cb5 14.Ne5–/+) 11.Qb3 Nbd7 12.c5 Bc7 (12...Be7 13.Rb1 cb5 14.Bb5+=) 13.bc6= bc6 14.Qa4 (14.Rb1 Ba5=) 14...Nb8 15.Rb1 Bc8 16.a3 g5 Black prepares the advance f4 (16...a5 17.Be2=) 17.h4 (17.Na2 a5=) 17...f4 18.gf4 (18.hg5 fe3 19.gf6 ed2 20.Kd2 Qf6+=) 18...gf4 19.Rg1 (better is 19.Qb3=) 19...Ng4–/+ 20.Nce4 (better is 20.ef4!? Qh4 21.Nde4–/+) 20...fe3–+ (20...de4?! 21.Qb3 Kg7 22.Ne4 Qh4 23.Be2–/+) 21.fe3 (21.f3 de4 22.Qb3 Rf7 23.Qe3 ef3 24.Nf3–+) 21...Qh4 (21...de4 22.Qb3 Kg7 23.Ne4 Qh4 24.Kd2–+) 22.Kd1 Kh8 (22...Qh2 23.Rg4 Bg4 24.Kc2–+) 23.Qb3 (23.Bd3 A) 23...de4?! 24.d5 Be5 25.Be5 Ne5 26.Qe4 Qe4 27.Be4–/+ (worse is 27.Ne4 Nd3 28.Kc2 cd5 29.Kd3 Bf5–+); B) 23...Ne3 24.Kc1 B1) 24...de4 25.d5 Rf6 26.Qe4+– (26.Bf6?! Qf6 27.Ne4 Qe5=); B2) 24...Qh2–+) 23...Qh6 (better is 23...Qh2!? 24.Rg4 Bg4 25.Kc1 de4 26.Qa4–+) 24.Rg4 (24.Bd3 Ne3 (24...de4?! 25.Be4 Bd8 26.Rh1 Ne3 27.Ke2 Ba6 28.Bd3–/+) 25.Kc1 A) 25...de4? 26.d5 Rf6 27.Bf6 Qf6 28.d6+– (28.Ne4 Qf4–/+); B) 25...Bh2–+) 24...Bg4 25.Kc2 Nd7 (25...de4? 26.d5 Rf6 27.Qb7 cd5 28.Qa8+– (28.Bf6?! Qf6 29.Qa8 Qd8+/–)) 26.Qb7 Ba5 (26...de4?! 27.Qc7 Rab8 28.Qg3–/+) 27.Nd6?? (27.Qa6 Bd2 28.Nd2 Qe3–+) 27...Qh2 (better is 27...Qe3 28.Qc6 Rab8–+) 28.Bc3 Bc3 (28...Rab8 29.Qb8 Rb8 30.Rb8 Nb8 31.Ba5–+) 29.Kc3 Rab8 30.Qc7 Qf2 31.Rb8 Rb8 (31...Nb8?! 32.Qe7 Nd7 33.Bd3+=) 32.Bd3 (32.Nc8 Qe3 33.Bd3–+) 32...Qe1 33.Kc2 (33.Bb5 cb5 34.Nf7 Kg7 35.Ne5–+) 33...Bd1 0–1. Schatz,Hans Ullrich (2090) – Claus,Thomas, Kassel op, 2000.

6.d4 Ne7!?+=.

6.g4 Bg4–/+ 7.Rg1 Qd7 8.h3 (8.Nbc3 Be6–/+) 8...Bf3–+ 9.Rg3 (9.Nbc3 d4 10.ed4 ed4–+) 9...e4 10.Rf3 ef3 (10...Qb5 11.Nbc3 Qb2 12.Rb1–/+) 11.Nd4 Be5 12.Qf3 c5 13.bc6 bc6 (13...Nc6 14.Be2–+) 14.Nc3 Bd4 15.ed4 Ne7 16.0–0–0 (16.Na4 Qf5 17.Qf5 Nf5–/+) 16...0–0 17.Ba3 Rf7 (17...Re8 18.Re1–+) 18.Bd3 (18.Re1 a5–/+) 18...Qe6 (18...Kh8 19.Re1–/+) 19.Ne2 (19.Qe3 Qe3 20.de3 g6+=) 19...Ng6 (19...Kh8 20.Nf4 Qd7 21.Qh5+=) 20.Rg1 (20.Bf5 Qe8 21.Bg6 hg6–/+) 20...Nd7 (20...f5 21.Rg5 Nh4 22.Qe3–/+) 21.Qh5 (21.Bf5!? Qe8 22.Bg6 hg6 23.Rg6+=) 21...Ndf8 (21...f5 22.Ng3–/+) 22.Bf5–/+ Qe8 23.h4 (23.Re1 Rb7–/+) 23...Rb8 (23...Rb7 24.Bd6–/+) 24.Qg4 (24.Bd6 Rd8 25.Bf8 A) 25...Qf8?! 26.Rg6 hg6 27.Bg6+=; B) 25...Kf8?! 26.Kd1 Kg8 27.Bg6 hg6 28.Qg6–/+; C) worse is 25...Rf8 26.Nf4+– (26.Bg6 hg6 27.Rg6 Rf7–/+); D) 25...Nf8–+) 24...c5 (24...Ne7 25.Bd3–+) 25.dc5 (better is 25.Bc5!? Nh4 26.Qh4 Qe2 27.Bd6–/+) 25...Ne5 26.Qg3? (26.Qh3 Rc7–+) 26...Qa4?? (better is 26...Nc4 27.Re1 Rfb7–+) 27.d4 (27.Kd1 Rb1 28.Bc1 Nc4+=) 27...Nc6 28.Kd1 (better is 28.Kd2!?–/+) 28...Rb1–+ 29.Bc1 Nd4 30.Qg4 (30.Nd4 Qd4 31.Bd3 Qc5–+) 30...Rb4 (30...Ne2 A) 31.Qa4?? Nc3 (31...Ng1? 32.Qe8+–; 31...Rc1 32.Ke2 Re7 33.Kd2 Rg1 34.c6+=) 32.Kd2 Na4–+; B) 31.Qe2 Qd4 32.Bd3 Rc1 33.Kc1 Qa1 34.Kd2 Qg1 35.a3–+) 31.f4 (31.Nc3 Qc6–+) 31...Re7 32.Nc3 (32.Rg2 Rc4 33.Nd4 Rd4 34.Bd2 Qa2–+) 32...Qc6 (better is 32...Nf5 33.Qf5 Rd4 34.Bd2 Rd2 35.Kd2 Qd4 36.Qd3 Qg1 37.Qd5 Kh8 38.Qf3–+) 33.Ba3 (33.Bd3 Qc5 34.a3 Rbb7–+ (34...Qc3?! 35.ab4 Qb4 36.Qh5–+)) 33...Rc4 (33...Nf5 34.Qf5 Rd4 35.Kc1–+) 34.Nb1 Qb5 (34...Nf5 35.Qf5 Rd4 36.Kc1–+) 35.Nd2 Rc3 (35...Nf5 36.Qf5 Rd4 37.Kc1 Rd2 38.Rg7 Kg7 39.Kd2 Qe2 40.Kc3 Qe1 41.Kb3 Rb7 42.Ka4 Qe8 43.Qd7 Qd7 44.c6 Qc6 45.Ka5 Qb5) 36.Nb3 Nf5 (36...Nb3?! 37.cb3 Qa5 38.Bb2–+) 37.Qf5 Qe2 38.Kc1 Qe3 39.Kb2 Rb3! (39...Qg1 40.Qd5 Kh8 41.Kc3 Qe3 42.Kb2 Qf4 43.c6–+) 40.ab3 (40.cb3 Qd4) 40...Qg1 (40...Qd4 41.Ka2 Qg1 42.Qd5 Ne6 43.f5–+) 41.Qd5 Rf7 42.c6 Qb6 43.h5 (43.Bd6 Qd8–+) 43...g6 (43...a6 44.Bf8 Kf8 45.Qd6 Re7 46.c3–+) 44.h6 (44.Bd6 gh5 45.c7 Qa6+=) 44...Qc7 45.Ka2 (45.c4 a5–+) 45...Qc8 (worse is 45...Qf4 46.Bf8 Qc1 47.c4 Qc2 48.Ka3–+) 46.Bd6 (46.Bf8 Kf8 (46...Qf8?! 47.c7 Qc8 48.Qd8 Rf8 49.Qe7=) 47.b4 Qc7–+) 46...Ne6 47.b4 (47.f5 gf5 48.Qf5 Qa6 49.Kb2 Qe2–+) 47...Nc7 (better is 47...f5 48.b5–+) 48.Qd3 (48.Bc7 Qc7 49.f5 gf5–+) 48...Qa6 (better is 48...Qe6 49.Kb2 Ne8–+) 49.Qa6 Na6 50.b5 (50.Kb3 Nc7–+) 50...Nc7 51.c4 f5 (51...g5 52.Kb3–+) 52.Kb3 (52.Ka3 g5 53.Bc7 Rc7 54.fg5 f4–+) 52...g5 53.fg5 f4 54.Bc5 (54.Kc3 f3 55.g6 hg6–+) 54...Ne6 55.Bf2 (55.Kb4 Ng5 56.Bd4 f3 57.Ba7 Ra7–+) 55...Kf8 (better is 55...Ng5 56.Bd4–+) 56.c5 Ke8 (56...Ng5 57.b6+/–) 57.b6 Kd8 (57...Ng5 58.b7 Ne6 59.b8Q Nd8 60.c7 Rc7 61.Qc7+–) 58.Kc4 (58.g6 hg6 59.Kc4 g5–+) 58...Kc8 (58...ab6 59.cb6 Ng5 60.Bd4–+) 59.Kb5 (59.Bh4 f3 60.Bf2 Rf4 61.Kd5 Ng5–+) 59...Kb8 (59...Ng5 60.Ka6 Ne4 61.Bd4 Nc5 62.Bc5 ab6 63.Kb6–+) 60.Ka6 Nc7 (60...ab6 61.cb6 f3 62.g6 hg6 63.Bg3 Nc7 64.Bc7 Rc7 65.bc7 Kc7 66.h7–/+) 61.Ka5 (61.bc7 Rc7 62.Kb5 Kc8–+) 61...ab6 62.cb6 Rf5 63.Ka4 Nd5 (better is 63...Rg5 64.bc7 Kc7–+) 64.g6 hg6 65.Bd4? (65.Bc5 Kc8 66.h7 Nb6 67.Bb6–+) 65...Rh5 66.b7 (66.Kb3–+) 66...Nc7 (66...f3 67.Kb5–+) 67.h7 (67.Kb4 f3–+) 67...Rh7 68.Be5 (68.Kb4 g5 69.Be5 f3–+) 68...f3 (68...Re7 69.Bd6 Re6 70.Bf4 Re4 71.Ka5 Rf4 72.Kb6–+) 69.Bg3 Rh5 (69...Rh5 70.Kb4 g5–+) 0–1. Brozhyk,Vasiliy – Khliastikov,Georgy, Sakharov mem op, 2002.

5.Nf3

5.Nf3 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3).

5.Nf3 Bd6 6.a4 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.a4 Bd6 6.Nf3).

5.a4 a6

6.Na3 Ne7 7.c4 c6 8.Nf3 Nd7 9.Be2 g6 10.0–0 Bg7 11.d4 e4 12.Ne1 0–0 13.f4 f5 14.Qb3 Nf6 15.h3 h5 16.Nec2 h4 17.c5 ab5 18.ab5 Qd7 19.b6 Nh7 20.Kh2 g5 21.Bc1 g4 22.Rg1 g3 23.Kh1 Nf6 24.Bd2 Kf7 25.Nb4 Rh8 26.Nac2 Ng4 27.Rgb1 Nf2 28.Kg1 Ng6 29.Ra8 Ra8 30.Ra1 Ra1 31.Na1 Nf4 32.Bf1 Ng6 33.Qa3 f4 34.Nac2 f3 35.Ne1 Nh3 36.gh3 f2 37.Kh1 Bh3 38.Be2 fe1Q 39.Be1 Bg4 40.Bf1 Bf3 41.Kg1 h3 42.Bg3 Qg4 43.Kf2 Bh6 44.Nc6 bc6 45.Qa7 Ne7 46.Qc7 h2 47.Bh2 Bg5 48.Qg3 Qh5 49.Bh3 Bh4 0–1. ateistawolnyx (1610) – sebolsit (1630), internet, 2014.

6.Nc3 Bb4 A) 7.Nf3 c5 (7...Nh6 8.Be2 0–0 9.0–0 Nf5 10.Ba3 Ba3 11.Ra3 ab5 12.Nb5 c6+=; 7...Qd6 8.Na2 Ba5 9.Nc1 Qd7 10.Be2 Bg4 11.Nb3 Bb4 12.h3 Bh5=; 7...Ne7 8.Be2 Qd6 9.0–0 0–0 10.Na2 Ba5 11.Nc1 Nd7 12.ba6 ba6=) 8.bc6 Nc6 9.Rb1 Nge7 10.Be2 e4 11.Nd4 Nd4 12.ed4 0–0+=; B) 7.Bd3 Nh6 (7...e4 8.Be2 Ne7 9.Bh5 g6 10.Be2 0–0 11.f3 h6 12.fe4 Bc3=; 7...Ne7 8.Qh5 g6 9.Qh4 Bc3 10.Bc3 Nf5 11.Qb4 a5 12.Qb3 Qd7=; 7...ab5 8.Qh5 Bf7 9.Qg4 Bf8 10.ab5 Ra1 11.Ba1 Nh6 12.Qg3 Nd7+=) 8.Nf3 c5 9.bc6 Nc6 10.Be2 e4 11.Ng1 0–0 12.Rb1 b6–/+; C) 7.Qe2 Nd7 (7...Nh6 8.ba6 ba6 9.Qh5 Nf7 10.Rb1 Qd7 11.Nge2 Bf5 12.Rc1 0–0+=; 7...Ne7 8.ba6 ba6 9.Qh5 Ng6 10.Bd3 e4 11.Be2 0–0 12.f4 Qd7+=; 7...Bf5 8.ba6 ba6 9.Qh5 g6 10.Qd1 Ne7 11.Nf3 0–0 12.Be2 c5+=) 8.ba6 Ra6 9.Qh5 g6 10.Qh4 Rb6 11.Nf3 Ne7 12.Bb5 Bc3–+; D) 7.Qh5 Bf7 (7...g6 8.Qh4 c5 9.ba6 ba6 10.Bd3 Bf7 11.Be2 g5 12.Qh3 Ne7=) 8.Qg4 Bf8 9.Be2 Nh6 10.Qf3 Bb4 11.Nh3 Be6 12.Qh5 Nf7+=.

6.Nc3 ab5 A) 7.Bb5 Nd7 (7...c6 8.Bd3 Nd7 9.Be2 Bb4 10.Bh5 g6 11.Be2 Nc5 12.Nf3 Bc3+=) 8.Nf3 c6 9.Be2 Bb4 10.0–0 Ne7 11.Na2 Bd6 12.Nc3 0–0+=; B) 7.Nb5 c6 (7...Nd7 8.Nf3 c6 9.Nc3 Bd6 10.Be2 Ne7 11.0–0 0–0 12.Re1 Qa5+=; 7...Nh6 8.Nf3 Bb4 9.Be2 c6 10.c3 Be7 11.Na3 Qb6 12.Ra2 Nd7+=; 7...b6 8.Nf3 c6 9.Nc3 Bb4 10.Be2 Ne7 11.0–0 0–0 12.Ne1 Nd7+=) 8.Nc3 b6 9.Bd3 Nh6 10.f4 e4 11.Be2 Bc5 12.Bh5 Nf7–/+; C) 7.ab5 Ra1 8.Qa1 Nd7 9.Nf3 c5 10.bc6 bc6 11.Be2 Bd6 12.0–0 Bf5=.

6.Nc3 Bd6 A) 7.Qh5 g6 (7...Bf7 8.Qg4 Bf8 9.Qd1 Nh6 10.Nf3 Nf5 11.e4 de4 12.Ne4 Bb4=) 8.Qe2 Nd7 9.Ba3 Ba3 10.Ra3 Qe7 11.Ra1 d4 12.Nd1 Nc5+=; B) 7.Nf3 c5 (7...ab5 8.Nb5 Bf8 9.Be2 Ne7 10.0–0 Nf5 11.d3 c6 12.e4 de4=; 7...Ne7 8.Be2 0–0 9.0–0 c5 10.a5 ab5 11.Nb5 Nc8 12.Nd6 Nd6+=; 7...Nh6 8.Be2 c5 9.ba6 ba6 10.0–0 e4 11.Ne1 Qc7 12.f4 0–0+=) 8.bc6 Nc6 9.Rb1 Nge7 10.Be2 Qc7 11.d3 0–0 12.0–0 b6–/+; C) 7.Ba3 Ne7 (7...Ba3 8.Ra3 d4 9.Nb1 de3 10.fe3 Ne7 11.Qh5 Bf7 12.Qg4 0–0+=; 7...Nh6 8.Bd6 Qd6 9.Rb1 0–0 10.d4 b6 11.Nf3 e4 12.Nd2 f5+=; 7...ab5 8.Bd6 Qd6 9.Bb5 c6 10.Be2 b6 11.Rb1 Nd7 12.Nf3 Ne7+=) 8.Bd6 Qd6 9.Qh5 Bf7 10.Qg4 0–0 11.Nf3 Be6 12.Ne4 Bg4–+; D) 7.Be2 Ne7 (7...ab5 8.Nb5 Bb4 9.Nf3 c6 10.c3 Be7 11.Na3 Nh6 12.0–0 Nd7+=; 7...Nh6 8.Nf3 0–0 9.0–0 c5 10.bc6 Nc6 11.Ba3 d4 12.Bd6 Qd6+=; 7...c5 8.Rb1 Ne7 9.ba6 Na6 10.Ba3 b6 11.Bb5 Kf7 12.Nh3 Rf8+=) 8.Nf3 0–0 9.0–0 c5 10.a5 ab5 11.Nb5 Nc8 12.Nd6 Nd6+=.

6.Nc3 Nh6 A) 7.Bd3 ab5 (7...Bc5 8.Nge2 ab5 9.ab5 Ra1 10.Qa1 0–0 11.Qa8 Qc8 12.Ng3 Nd7+=; 7...Qd7 8.Qh5 Bf7 9.Qd1 Bc5 10.Be2 ab5 11.ab5 Ra1 12.Ba1 Nf5+=; 7...e4 8.Bf1 ab5 9.ab5 Ra1 10.Qa1 Nd7 11.Nge2 Nb6 12.Nf4 Bf7=) 8.ab5 Ra1 9.Ba1 Bc5 10.Qh5 Bf7 11.Qh4 Qd7 12.Bb2 0–0+=; B) 7.Be2 Nf5 (7...ab5 8.ab5 Ra1 9.Ba1 Nf5 10.e4 de4 11.Ne4 Be7 12.Nf3 0–0=; 7...d4 8.Ne4 de3 9.de3 Qd1 10.Bd1 c6 11.Be2 ab5 12.ab5 Ra1+=; 7...Bc5 8.d4 Bb4 9.de5 fe5 10.Nf3 Nf7 11.0–0 0–0 12.Bd3 Qd7+=) 8.e4 de4 9.Ne4 Nh4 10.Bh5 g6 11.Bf3 Be7 12.d4 f5+=; C) 7.Qh5 Bf7 (7...g6 8.Qe2 Nd7 9.Nf3 ab5 10.ab5 Ra1 11.Ba1 Bd6 12.Qd1 c5+=; 7...Nf7 8.Nf3 g6 9.Qh4 Nd6 10.Bd3 Bf7 11.e4 d4 12.Nd1 c5+=) 8.Qf3 Bb4 9.Nge2 ab5 10.ab5 Ra1 11.Ba1 0–0 12.Ng3 e4+=; D) 7.Nf3 Bb4 (7...ab5 8.ab5 Ra1 9.Qa1 Nf5 10.Qa7 e4 11.Nd4 Nd4 12.ed4 b6=; 7...Bd6 8.Be2 0–0 9.0–0 c5 10.bc6 Nc6 11.Ba3 d4 12.Bd6 Qd6+=; 7...Nf5 8.e4 de4 9.Ne4 Bb4 10.Bd3 ab5 11.ab5 Ra1 12.Qa1 0–0=) 8.Be2 0–0 9.0–0 Nf5 10.h3 e4 11.Nh2 Nd6 12.f3 Qd7+=.

6.c4 c6 7.Qc2 Nd7 (7...ab5!? 8.cd5 Bd5 9.ab5 Ra1 10.Ba1 Bd6=) 8.bc6= bc6 9.Nf3 (9.cd5 cd5 10.Qc6+=) 9...Bd6 (better is 9...Ne7!?+=) 10.cd5+= cd5 11.Be2 (11.Qc6 Ke7 A) 12.Ba6? Nc5 13.d4 Ra6–+ (13...Na6?! 14.de5 Bb4 15.Bc3–/+); B) 12.Nc3+=) 11...Ne7+= 12.0–0 0–0 13.d3 (13.Rc1 Rc8 14.Nc3 Rc6+=) 13...Qb6 14.Ba3 Rfc8 15.Qd2 Rab8 (15...Nc5 16.a5 Qd8 17.Bc5 Rc5 18.d4+=) 16.Bd6 (16.a5!? Qc7 17.Rc1=) 16...Qd6+= 17.Rc1 Nc5 18.Qa5?? (better is 18.Qd1–/+) 18...Nb3–+ 19.Rc8 Rc8 (19...Rc8 20.Qe1 Na1–+) 0–1. GuestSSMB – GuestLJPM, freechess.org, 2017.

6.d4 Bb4 A) 7.Bc3 Qd6 (7...Bc3 8.Nc3 ab5 9.ab5 Ra1 10.Qa1 Ne7 11.de5 fe5 12.Qa8 d4=; 7...Qe7 8.de5 fe5 9.Qh5 Bf7 10.Qg4 Bc3 11.Nc3 Be6 12.Qh5 Bf7=) 8.Bb4 Qb4 9.c3 Qb2 10.Ra3 Bg4 11.Be2 Bf5 12.Rb3 Qa2=; B) 7.c3 Bd6 8.Ba3 Ne7 9.Bd6 Qd6 10.Qh5 Bf7 11.Qg4 0–0 12.Nf3 ab5+=; C) 7.Nd2 Nd7 (7...ab5 8.ab5 Ra1 9.Qa1 e4 10.c3 Be7 11.Ne2 Bd6 12.Qa7 Qc8=; 7...e4 8.c3 Bd6 9.Qb3 f5 10.ba6 ba6 11.Qb7 Nd7 12.Ba3 Ba3=; 7...ed4 8.Bd4 ab5 9.Bb5 c6 10.Bd3 Qa5 11.Ne2 Ne7 12.c3 Bd6=) 8.ba6 ba6 9.de5 fe5 10.Ngf3 Ngf6 11.Ne5 Ne5 12.Be5 0–0=.

6.d4 ab5 7.ab5 (7.Bb5 c6 8.Be2 e4 9.Nd2 b6 10.c4 Bb4 11.Qc2 Bd2 12.Kd2 Nd7+=) 7...Ra1 (7...Bb4 8.Nd2 Ra1 9.Qa1 e4 10.c3 Be7 11.Ne2 Bd6 12.Qa7 Qc8=) 8.Ba1 e4 9.Nh3 Bd6 10.Nf4 Bf4 11.ef4 Ne7 12.Qh5 g6=.

6.d4 Nd7 A) 7.ba6 ba6 8.de5 fe5 9.Nf3 Bd6 10.Bd3 Ngf6 11.Ng5 Qe7 12.Ne6 Qe6+=; B) 7.c4 dc4 (7...Nh6 8.cd5 Bd5 9.Nf3 ab5 10.de5 Bb4 11.Bc3 Bf3 12.Qf3 Ra4=; 7...ed4 8.cd5 Bd5 9.Qd4 Be6 10.Ne2 ab5 11.Nf4 Bf5 12.Bb5 c6=) 8.d5 Bf5 9.ba6 Bb1 10.Qb1 Bb4 11.Kd1 Nb6 12.ab7 Qd5+=; C) 7.Nd2 Bd6 (7...ab5 8.ab5 Ra1 9.Ba1 Bd6 10.e4 Nh6 11.Ngf3 0–0 12.Bd3 c5=; 7...Bb4 8.de5 fe5 9.Ngf3 Bg4 10.c3 Bd6 11.c4 Ngf6 12.cd5 Nd5=; 7...Nh6 8.ba6 ba6 9.de5 Ne5 10.Ngf3 Bd6 11.Be2 0–0 12.0–0 Qe7=) 8.Ba3 Ba3 9.Ra3 ab5 10.Bb5 Qe7 11.Ra2 Nh6 12.Ngf3 e4+=; D) 7.de5 fe5 8.Nf3 ab5 9.Bb5 c6 10.Bd3 Bd6 11.0–0 Nh6 12.c4 0–0=.

6.d4 e4 A) 7.Ne2 Bb4 (7...Bd6 8.Nf4 Bf4 9.ef4 Ne7 10.Qh5 g6 11.Qe2 ab5 12.ab5 Ra1=; 7...Bg4 8.h3 Bh5 9.Qd2 Bf7 10.Ng3 Be6 11.Ba3 Ba3 12.Na3 Ne7=; 7...Qd7 8.Nf4 Bg4 9.f3 ef3 10.gf3 Bf5 11.Nd2 g5 12.Ng2 ab5=) 8.Bc3 Bd6 9.Nf4 Bf4 10.ef4 Ne7 11.Qh5 g6 12.Qe2 0–0=; B) 7.Ba3 Ba3 (7...Ne7 8.Nd2 ab5 9.ab5 Qd7 10.Be2 Ra7 11.Nb3 b6 12.Bb4 Nc8=; 7...Be7 8.Nh3 Ba3 9.Ra3 Ne7 10.Nf4 Qd6 11.ba6 Na6 12.Rb3 b6=; 7...Bd6 8.Bd6 Qd6 9.Nd2 Ne7 10.c4 0–0 11.c5 Qd7 12.Rb1 ab5=) 8.Ra3 Ne7 9.Qh5 g6 10.Qd1 ab5 11.ab5 Ra3 12.Na3 Qd6+=; C) 7.Nh3 Qd7 (7...ab5 8.Nf4 Bf5 9.ab5 Bb4 10.c3 Ra1 11.Ba1 Ba5 12.Be2 Ne7=; 7...Bd6 8.Nf4 Bf4 9.ef4 Ne7 10.Qh5 g6 11.Qe2 0–0 12.f3 ab5=; 7...Nh6 8.Nf4 Qd7 9.Ne6 Qe6 10.Nd2 ab5 11.ab5 Ra1 12.Qa1 Bb4+=) 8.Nf4 Bg4 9.f3 ef3 10.gf3 Bf5 11.Nd2 g5 12.Ng2 ab5=; D) 7.Nd2 Qd7 (7...ab5 8.ab5 Ra1 9.Qa1 Bb4 10.c3 Be7 11.Ne2 Bd6 12.Qa7 b6=; 7...Nh6 8.Ne2 Bb4 9.Nf4 Bg4 10.Be2 Be2 11.Qe2 g5 12.Nh5 Nd7=; 7...Be7 8.Ne2 Bg4 9.c4 ab5 10.ab5 Ra1 11.Qa1 dc4 12.Ne4 Nd7+=) 8.Ba3 Ne7 9.Be2 Ra7 10.Nb3 b6 11.ba6 Na6 12.a5 Qc6=.

6.Be2 Bb4 A) 7.Ba3 Ba3 (7...Bd6 8.Bd6 Qd6 9.Nc3 Ne7 10.Nf3 0–0 11.0–0 Nd7 12.Re1 ab5+=; 7...Qe7 8.Bb4 Qb4 9.Nc3 Qa5 10.Nf3 ab5 11.Nb5 Ne7 12.0–0 0–0+=; 7...Qd6 8.Bb4 Qb4 9.Nc3 Qa5 10.ba6 Na6 11.Rb1 Nb4 12.Bg4 Bf7+=) 8.Ra3 Ne7 9.Nf3 Qd6 10.0–0 ab5 11.Bb5 c6 12.Be2 b6+=; B) 7.Bc3 Bd6 (7...Bc3 8.Nc3 ab5 9.ab5 Ra1 10.Qa1 Ne7 11.Nf3 c5 12.bc6 Nbc6=; 7...Be7 8.Nf3 Nh6 9.0–0 0–0 10.d4 e4 11.Nfd2 Nf5 12.Bb2 ab5+=) 8.Nf3 Ne7 9.0–0 0–0 10.Re1 Nf5 11.d3 Qd7 12.e4 Ne7+=; C) 7.Nf3 Nh6 (7...ab5 8.ab5 Ra1 9.Ba1 Ne7 10.0–0 0–0 11.Bb2 Qd7 12.Bc3 Bd6+=; 7...Bd6 8.0–0 Ne7 9.Nc3 0–0 10.d4 e4 11.Nd2 c6 12.bc6 Nbc6=; 7...Ne7 8.0–0 0–0 9.Ba3 Ba3 10.Na3 Bg4 11.c4 ab5 12.Nb5 Ra5+=) 8.0–0 0–0 9.Nc3 Nf5 10.h3 e4 11.Ne1 Qe7 12.Qc1 Nd7+=; D) 7.Bh5 g6 8.Bg4 Qe7 9.Be6 Qe6 10.Nf3 ab5 11.ab5 Ra1 12.Ba1 Ne7+=.

6.Be2 ab5 A) 7.Bb5 c6 (7...Nd7 8.Nf3 c6 9.Be2 Nc5 10.c3 Qb6 11.Ba3 Bg4 12.d4 Bf3=) 8.Be2 Bd6 9.Nf3 Ne7 10.0–0 b6 11.Nc3 0–0 12.Ba3 Ba3–/+; B) 7.ab5 Ra1 8.Ba1 Bd6 9.Nf3 Ne7 10.0–0 0–0 11.Nc3 c5 12.bc6 bc6+=.

6.Be2 Bd6 A) 7.Nc3 c5 (7...Nh6 8.Nf3 0–0 9.0–0 c5 10.bc6 Nc6 11.Ba3 d4 12.Bd6 Qd6+=; 7...ab5 8.Nb5 Bb4 9.Nf3 c6 10.c3 Be7 11.Na3 Nh6 12.0–0 Nd7+=; 7...Ne7 8.Nf3 0–0 9.0–0 c5 10.bc6 Nbc6 11.Ba3 Ba3 12.Ra3 e4+=) 8.Rb1 Ne7 9.ba6 Na6 10.Ba3 b6 11.Bb5 Kf7 12.Nh3 Qc8+=; B) 7.Nf3 Ne7 (7...ab5 8.ab5 Ra1 9.Ba1 Ne7 10.0–0 0–0 11.Nc3 Nd7 12.Re1 Qe8+=; 7...Nh6 8.0–0 ab5 9.ab5 Ra1 10.Ba1 0–0 11.Nc3 c5 12.bc6 bc6+=; 7...c5 8.0–0 Qc7 9.h3 ab5 10.ab5 Ra1 11.Ba1 Ne7 12.d4 cd4+=) 8.Nc3 0–0 9.0–0 c5 10.a5 ab5 11.Nb5 Nc8 12.Nd6 Nd6+=; C) 7.Ba3 Ne7 (7...ab5 8.ab5 e4 9.Bg4 f5 10.Bd6 Ra1 11.Be5 fg4 12.Ba1 Nf6+=; 7...Nh6 8.Nf3 ab5 9.ab5 0–0 10.0–0 Nd7 11.d4 Rf7 12.Qe1 Nb6+=; 7...c5 8.bc6 Nc6 9.Bd6 Qd6 10.Nc3 f5 11.Bh5 g6 12.Bf3 g5+=) 8.Nf3 0–0 9.0–0 ab5 10.ab5 Nd7 11.d3 Nb6 12.d4 Bg4+=; D) 7.d4 Ne7 (7...e4 8.Ba3 Nh6 9.Bd6 Qd6 10.Nd2 0–0 11.c4 dc4 12.Rb1 ab5=; 7...Nd7 8.Ba3 Ba3 9.Ra3 ab5 10.ab5 Ra3 11.Na3 Nh6 12.Nf3 Qe7=; 7...ab5 8.Bb5 Nd7 9.de5 fe5 10.Bd7 Kd7 11.Nf3 Qf6 12.c4 Ra5=) 8.de5 Be5 9.Be5 fe5 10.Nf3 Ng6 11.h4 Qf6 12.h5 Ne7+=.

6.Be2 Nh6 A) 7.d4 e4 (7...Bb4 8.Bc3 Bc3 9.Nc3 0–0 10.Nf3 e4 11.Nd2 Qd6 12.Rb1 b6=; 7...ab5 8.ab5 Ra1 9.Ba1 e4 10.Bb2 Nd7 11.Bh5 g6 12.Be2 Nf7+=; 7...Nd7 8.Nf3 ab5 9.ab5 Bb4 10.c3 Ra1 11.Ba1 Bd6 12.0–0 0–0+=) 8.Nd2 Nf7 9.c4 Bb4 10.Qc2 dc4 11.Bc4 Bc4 12.Qc4 Bd2+=; B) 7.Nc3 Nf5 (7...ab5 8.ab5 Ra1 9.Ba1 Nf5 10.e4 de4 11.Ne4 Be7 12.Nf3 0–0=; 7...d4 8.Ne4 de3 9.de3 Qd1 10.Bd1 c6 11.Be2 ab5 12.ab5 Ra1+=; 7...Bc5 8.d4 Bb4 9.de5 fe5 10.Nf3 Nf7 11.0–0 0–0 12.Bd3 Qd7+=) 8.e4 de4 9.Ne4 Nh4 10.Bh5 g6 11.Bf3 Be7 12.d4 f5+=; C) 7.Nf3 ab5 (7...Bd6 8.Nc3 0–0 9.0–0 c5 10.bc6 Nc6 11.Ba3 d4 12.Bd6 Qd6+=; 7...Nf5 8.0–0 Bd6 9.Nc3 ab5 10.Nb5 Be7 11.Ba3 0–0 12.Be7 Qe7+=; 7...Be7 8.0–0 0–0 9.d4 e4 10.Nfd2 ab5 11.ab5 Ra1 12.Ba1 f5=) 8.ab5 Ra1 9.Ba1 Bd6 10.0–0 0–0 11.Nc3 c5 12.bc6 bc6+=.

6.Nf3 Bb4 A) 7.Be2 Bd6 (7...ab5 8.ab5 Ra1 9.Ba1 Ne7 10.0–0 0–0 11.Bb2 Bd6 12.d4 e4=; 7...Ne7 8.0–0 0–0 9.Ba3 Ba3 10.Na3 Bg4 11.c4 ab5 12.Nb5 Ra5+=; 7...Nh6 8.0–0 0–0 9.d4 e4 10.Nfd2 ab5 11.ab5 Ra1 12.Ba1 Qd7=) 8.0–0 Ne7 9.Ba3 ab5 10.ab5 0–0 11.Qe1 c5 12.bc6 Nbc6+=; B) 7.Nc3 c5 (7...Ne7 8.Be2 0–0 9.0–0 c5 10.bc6 Nbc6 11.Rb1 b6 12.Na2 Bd6+=; 7...ab5 8.ab5 Ra1 9.Qa1 Ne7 10.Be2 c5 11.bc6 Nbc6 12.0–0 0–0=; 7...Qd6 8.Be2 Ne7 9.0–0 0–0 10.Na2 Ba5 11.Nc1 Nd7 12.ba6 ba6=) 8.bc6 Nc6 9.Rb1 Nge7 10.Be2 e4 11.Nd4 Nd4 12.ed4 0–0+=; C) 7.Bd3 Ne7 (7...ab5 8.ab5 Ra1 9.Ba1 Ne7 10.0–0 0–0 11.Be2 Nd7 12.Bb2 Nf5+=; 7...Bg4 8.Be2 ab5 9.ab5 Ra1 10.Ba1 Ne7 11.Bc3 Bd6 12.0–0 0–0+=; 7...Qd7 8.Be2 ab5 9.ab5 Ra1 10.Ba1 Ne7 11.0–0 0–0 12.Bb2 Bd6=) 8.0–0 0–0 9.Nc3 Qd6 10.Na2 Ba5 11.Be2 c5 12.bc6 Nbc6+=; D) 7.Ba3 Bd6 (7...Ba3 8.Ra3 Ne7 9.d4 e4 10.Nfd2 0–0 11.c4 f5 12.Qb3 Nd7=; 7...Ba5 8.Be2 Ne7 9.0–0 0–0 10.d4 e4 11.Nfd2 ab5 12.ab5 Bb4=) 8.d4 Ne7 9.Be2 0–0 10.0–0 ab5 11.ab5 Nd7 12.Qe1 Nb6+=.

6.Nf3 Nd7 7.d4 e4 8.Nfd2 ab5 9.ab5 Ra1 10.Ba1 f5 11.c4 Ngf6 12.c5 g6 13.g3 Ng4 14.Be2 Bg7 15.Nb3 b6 16.N1d2 0–0 17.0–0 h5 18.h3 Nh6 19.f4 ef3 20.Bf3 Nf6 21.h4 (21.Bg2 Ne4 22.Qe1 Qg5=) 21...Ne4 22.Kg2 Ng4 23.Re1 Bf6 24.Nf1 Bh4 25.gh4 Qh4 26.Re2?? (better is 26.Qe2=) 26...Ngf2 27.Qc2?? (27.Rf2 Qf2 28.Kh1–+) 27...Qh1 0–1. Schwichtenberg,Juergen (1630) – Bogorad,Michail (2195), 12sen.WM–H Bad Naumburg, 2002.

6.Nf3 Ne7 A) 7.Ba3 Ng6 (7...Nf5 8.Bf8 Rf8 9.d4 e4 10.Nfd2 Kf7 11.c4 ab5 12.cd5 Bd5=; 7...ab5 8.ab5 Nd7 9.Be2 Nf5 10.0–0 Ba3 11.Na3 Qe7 12.Qc1 Ra4+=; 7...Nd7 8.Be2 ab5 9.ab5 Ng6 10.0–0 Bd6 11.Qc1 0–0 12.Nc3 Ba3+=) 8.Bf8 Rf8 9.Nc3 Kf7 10.Be2 Kg8 11.0–0 c5 12.Qb1 Qa5+=; B) 7.Na3 Qd6 (7...Ng6 8.Be2 Bd6 9.0–0 0–0 10.d4 e4 11.Nd2 f5 12.c4 Qh4+=; 7...Nf5 8.Be2 Bd6 9.0–0 0–0 10.d4 e4 11.Nd2 c6 12.c4 Qc7+=; 7...Nc8 8.Be2 Nb6 9.a5 Na4 10.Bc1 Be7 11.Nb1 Nc5 12.d4 ed4=) 8.c4 Nf5 9.Be2 Qd7 10.Qc2 Ba3 11.Ba3 dc4 12.e4 Nd6+=; C) 7.Bd3 ab5 (7...c5 8.Be2 e4 9.Nh4 g5 10.Bf6 Rg8 11.Bg4 Bg4 12.Qg4 gh4+=; 7...Bg4 8.Be2 Ng6 9.0–0 Be7 10.h3 Bf5 11.d4 e4 12.Nfd2 ab5=; 7...Nf5 8.e4 de4 9.Be4 Nd6 10.Nc3 Ne4 11.Ne4 ab5 12.ab5 Ra1+=) 8.ab5 Ra1 9.Ba1 Nf5 10.e4 de4 11.Be4 Nd6 12.Bd3 e4–/+; D) 7.Be2 Ng6 (7...Nf5 8.0–0 ab5 9.ab5 Ra1 10.Ba1 Bd6 11.Nc3 e4 12.Ne1 Nd7=; 7...ab5 8.ab5 Ra1 9.Ba1 Nf5 10.0–0 Bd6 11.Nc3 e4 12.Ne1 Nd7=; 7...c5 8.0–0 e4 9.Ne1 ab5 10.ab5 Ra1 11.Ba1 Ng6 12.d3 Bd6=) 8.0–0 Bd6 9.Nc3 0–0 10.Re1 c6 11.bc6 Nc6 12.e4 d4+=.

6.Nf3 Nh6 A) 7.Be2 ab5 (7...Bd6 8.Nc3 0–0 9.0–0 c5 10.bc6 Nc6 11.Ba3 d4 12.Bd6 Qd6+=; 7...Nf5 8.0–0 ab5 9.ab5 Ra1 10.Ba1 Bd6 11.Nc3 e4 12.Ne1 Nd7=; 7...Be7 8.0–0 0–0 9.d4 e4 10.Nfd2 ab5 11.ab5 Ra1 12.Ba1 f5=) 8.ab5 Ra1 9.Ba1 Bd6 10.0–0 0–0 11.Nc3 c5 12.bc6 bc6+=; B) 7.Bd3 ab5 (7...Bc5 8.Be2 0–0 9.0–0 ab5 10.ab5 Ra1 11.Ba1 Nd7 12.Nc3 Bb4+=; 7...c5 8.ba6 Na6 9.Bb5 Kf7 10.0–0 Nc7 11.Nc3 Bd6 12.Be2 Rf8+=; 7...Nf5 8.e4 de4 9.Be4 Nd6 10.Nc3 Ne4 11.Ne4 ab5 12.ab5 Ra1+=) 8.ab5 Ra1 9.Ba1 Nf5 10.e4 de4 11.Be4 Nd6 12.Bd3 e4–/+; C) 7.Bc3 c5 (7...Bd6 8.Be2 0–0 9.0–0 Nf5 10.Re1 ab5 11.ab5 Ra1 12.Ba1 c5+=; 7...ab5 8.ab5 Ra1 9.Ba1 Nf5 10.Be2 Bd6 11.0–0 0–0 12.d3 Nd7+=; 7...Nf5 8.Be2 d4 9.ed4 e4 10.g4 Nd6 11.Nh4 Be7 12.d3 0–0=) 8.d4 e4 9.Nfd2 c4 10.Be2 ab5 11.ab5 Ra1 12.Ba1 Qa5–/+; D) 7.Nc3 Bd6 (7...ab5 8.ab5 Ra1 9.Qa1 Nd7 10.Qa7 Qc8 11.Be2 Nf5 12.e4 de4=; 7...Nf5 8.e4 de4 9.Ne4 Bb4 10.Bd3 ab5 11.ab5 Ra1 12.Qa1 0–0=; 7...Bf5 8.Be2 ab5 9.ab5 Ra1 10.Ba1 Be7 11.0–0 0–0 12.Re1 Be6=) 8.Be2 0–0 9.0–0 c5 10.bc6 Nc6 11.Ba3 d4 12.Bd6 Qd6+=.

6.Na3 ab5

7.ab5 c5 8.c4 d4 9.d3 b6 (9...Qa5!? 10.Ke2 Qc7+=) 10.Nc2 Ra1 11.Qa1 Bd6 12.Qa7 Nd7 13.Nf3 Ne7 14.Nd2 f5 15.Be2 0–0 16.e4 (16.0–0 Nf6=) 16...Qa8 17.Qa8 Ra8 18.0–0 (18.ef5 Bf5 19.Na3 Nf6+=) 18...Ra2–/+ 19.Rb1 Ng6 20.ef5 Bf5 21.Ne4 (21.g3 Nf6 22.f3 Kf7+=) 21...Be4 22.de4 Nf4 23.Bf1 g5 24.g3 d3 25.Ne1? (25.Ne3 Ne2 26.Be2 de2 27.Ba1+=) 25...Ne2?? (25...d2 26.gf4 Rb2–+ (26...de1R?! 27.Re1 Rb2 28.Rd1 ef4 29.Rd6=)) 26.Kg2 (26.Be2 de2 27.f3 g4+/–) 26...Nd4 (better is 26...d2 27.Nd3 Nc1 28.Rc1 dc1R 29.Bc1 g4+=) 27.Nd3 Nf6 28.f3 g4 29.fg4 Ng4 30.Kh3 (30.Ra1!? Ra1 31.Ba1 Ne3 32.Kg1=) 30...Ne3= 31.Bg2 Nc4 32.Bd4 cd4 33.Nb4? (33.Rc1 Ra4+=) 33...Re2?? (better is 33...Bb4 34.Rb4 Ne3–+) 34.Nd5 Nd2 Attacking the isolated pawn on e4 35.Rc1 Ne4?? (better is 35...Bc5+=) 36.Be4+– Re4 (36...Bc5+–) 37.Nf6 Kf7 38.Ne4 Bb4 39.Rc7 (39.Kg4!? Ke6 40.Rc6 Ke7+–) 39...Ke6 40.Rc6 Kd5 (40...Kf5 41.Nd6 Bd6 42.Rd6 Ke4+–) 41.Nf6 1–0. przecinakxxxl – peter62 (1705), internet, 2013.

7.ab5 Bd6 8.Nf3 Ne7 9.d4 e4 10.Nd2 0–0 11.Be2 c6 12.0–0 Ng6 13.c4 f5 14.c5 Be7 15.g3 Nd7 16.b6 Nf6 17.Nc2 Qd7 18.f4 ef3 19.Nf3 Ne4 20.Nd2 h6 21.Ne4 fe4 22.Bh5 Nh8 23.Rf8 Rf8 24.Ne1 g6 25.Be2 Nf7 26.Ng2 Ng5 27.Nh4 Kg7 28.Bc3 Nh3 29.Kg2 Bh4 30.gh4 Nf2 31.Kf1 Nd1 32.Ke1 Ne3 33.Bd2 Nc2 34.Kd1 Na1 35.Kc1 Bg4 36.Bg4 Nb3 37.Kc2 Qg4 38.Bb4 Nd4 0–1. ateistawolnyx – coltrane, internet, 2013.

6.c4 dc4!?

7.Na3 Ba3 8.Ra3 ab5 9.ab5 Ra3 10.Ba3–/+.

7.Na3 c6 8.Bc4 (8.ba6 Na6 9.Nc4+=) 8...Qd6 (better is 8...Ba3!? 9.Be6 Bb2–/+) 9.Be6 Qe6 10.Nf3 ab5 11.ab5 cb5 (11...Bd6 12.bc6 bc6 13.Qc2=) 12.Nb5 Ra1 13.Ba1 Qc4 14.Qb1 (better is 14.Nc3=) 14...e4?? (better is 14...Nc6+=) 15.Nfd4+/– Nc6 16.Nc7 (better is 16.Qe4 Ne5 17.Qc2 Qc2 18.Nc2+–) 16...Kf7= 17.Bc3?? (better is 17.Nc6 bc6 18.Bc3=) 17...Nd4–+ 18.ed4 (18.Bd4 Qc7 19.0–0 Bd6–+) 18...Qc7 19.0–0 Bd6 20.Qe4 Bh2 21.Kh1 Ne7 (21...Bd6 22.Rb1 Ne7 23.Qb7 Qb7 24.Rb7–+) 22.Qh4? (better is 22.g3 Bg3 23.fg3–+) 22...Bf4 23.Qh5 (23.Re1 Qd6–+) 23...g6 24.Qf3 Nf5 (24...Rd8 25.Rb1 Nd5 26.Kg1–+) 25.Qd5 (25.Rb1 Rb8–+) 25...Kg7 26.Rb1 Rd8 (26...Rb8 27.Qe6–+) 27.Qf3 (27.Qb7 Rd7 28.Qc7 Bc7 29.Rb7–+) 27...Nd4 (better is 27...b6–+) 28.Bd4–/+ Rd7 (28...Rd4?! 29.Rb7 Rd2 30.g3=) 29.g3 (better is 29.Bc3–/+) 29...Qc2 (better is 29...Qc6!? 30.Qc6 bc6–/+) 30.Rb7= Qc1 (30...Rb7 31.Qb7 Qc7 32.Qc7 (32.gf4?? Qb7 33.Kg1 h5–+) 32...Bc7 33.Kg2=) 31.Kg2 Rb7 32.Qb7 Bc7?? (32...Qc7 33.Qf3 Be5= (33...Bd2?? 34.Qf6 Kg8 35.Qh8 Kf7 36.Qh7 Ke6 37.Qc7+–)) 33.Bb6 (better is 33.Bc3 Qa3 34.Qc7 Kg8 35.Bf6 Qa8 36.f3 Qf8+–) 33...Qd2 34.Bc7 (34.Qc7!? Kg8+–) 34...Kh6?? (34...Qd7+–) 35.Bf4 1–0. GuestYCWV – GuestHWPP, freechess.org, 2018.

7.Qc2 ab5 8.ab5 Ra1 9.Ba1 Qd5–/+.

6.Nf3 ab5

7.ab5 Ra1 8.Ba1 Bb4 (8...Bd6 9.Be2 Ne7 10.0–0 0–0 11.Nc3 Nd7 12.Bb2 Qe8+=) 9.Be2 Ne7 10.0–0 0–0 11.d3 (11.Nc3 c5 12.Na2 Ba3+=) 11...Nd7 (11...Qd7 12.c4 c6=) 12.c4 (12.Nbd2 c6+=) 12...dc4 (12...Nb6+=) 13.dc4 Qa8 14.Bc3 Qa5 15.Qb3 Bc3 16.Nc3 Nc5 17.Qb2 Ra8 18.Qc2 Qa3 19.e4 Nc8 20.Nd5 Bd5 21.ed5 Qa2 22.Qd1 Nd6 23.Nd2 Qb2 24.Re1 (better is 24.Qc1!? Qc1 25.Rc1–/+) 24...Ra2–+ 25.Nb1 Nb3 26.Qd3? (26.Rf1 f5–+) 26...Nd4 (26...Nc1 27.Rc1 Qc1 28.Qd1–+) 27.Nc3 (27.Kf1 e4 28.Qd1 Nc4 29.b6 Nb6 30.h3–+) 27...Ra3 (27...Ne2?! 28.Ne2 Ra3 29.Qb1 Nc4 30.Qb2 Nb2 31.Ng3–/+) 28.Nd1 (28.Qb1 Qc3 29.Bf1–+) 28...Qc1 0–1. Rebber,Christian (2070) – Seegers,Hendrik (2200), Muensterland Open, 2010.

7.ab5 Ra1 8.Ba1 c6 9.Be2 Bd6 10.0–0 Ne7 11.c3 0–0 12.d4 e4 13.Nfd2 Nd7 14.c4 Qc7 15.h3 Nf5 (15...cb5!? 16.cd5 Bd5=) 16.c5+= Be7 17.Nc3 Ra8 18.Qb3 Qb8 (better is 18...Nf8!?+=) 19.Nde4! Bf7 (19...de4 20.Qe6 Double attack (20.Qe6 Pinning; 20.Qe6 Deflection)) 20.Nd6 (better is 20.Nd2+–) 20...Bd6 21.cd6 Qd6 22.bc6 bc6 23.Na4 Rb8 24.Qd3 Bg6 25.Qa6 Re8 26.Bf3 (26.Rc1 Ne7+=) 26...Nb8 27.Qb7 (27.Qe2!?=) 27...Nh4+= 28.Bd1 Bd3 29.Re1 Bb5 (better is 29...Be4 30.g4 f5–/+) 30.Nc5+/– Re7 (30...Qe7!?+/–) 31.Qc8 Kf7 32.Qg4 Ng6 33.e4 (33.Bc2!?+/–) 33...Nd7 34.e5 (better is 34.Nd7 Qd7 35.Qf3+=) 34...Qc7?? (better is 34...Nde5!? 35.de5 Qc5 36.e6 Kg8–/+) 35.Nd7 (better is 35.Qd7 Rd7 36.e6 Ke7 37.ed7 Kf7 38.Bh5+–) 35...Qd7?? (better is 35...Qa5 36.Re3 Qa1 37.ef6 gf6+/–) 36.e6 (better is 36.Qd7 Rd7 37.e6 Ke7 38.ed7 Kd7 39.Bg4 Kc7 40.Re8+–) 36...Re6–/+ 37.Re6 Qe6 38.Qe6 Ke6 39.Bg4 f5 40.Bf3 Nf4 41.Kh2 Nd3 42.g4 fg4 43.Bg4–/+ Kd6 44.Bc3 Nf2–+ 45.Kg3?? Ng4 46.hg4 Ke6 47.Kf4 Kf6 48.g5 Ke6 49.Kg4 g6 50.Bb4+= Bd3 51.Bc5 Bf5 52.Kf4 Bh3 53.Bb6 Bf1 54.Bc5 Bd3 55.Bb6 Kf7 56.Bc5 Kg7–/+ 57.Bb6 h5 58.gh6 Kh6 59.Kg3 Kg5 60.Bc5 Kf5 61.Bb6 Ke4 62.Bc5 g5 63.Bb6?? Ke3 0–1. brother – gambitiste (1640), internet, 2013.

7.ab5 Ra1 8.Ba1 Bd6 9.Be2 Ne7 10.0–0 0–0 11.Nc3 Nd7 12.Bb2 Qe8 +=.

7.ab5 Ra1 8.Ba1 Nd7 9.d4 Qa8 10.Bc3 e4 11.Nfd2 Nb6 12.Nb3 Bd6 13.Nc5 Kf7 (13...Bf5 14.Be2=) 14.Ne6 Ke6 15.Be2 f5 16.0–0 Nf6 17.Nd2 Qa3 18.Ba1 Ra8 19.c4 Bb4 20.c5 Na4 21.Nb3 Qa2 22.c6 b6 (22...bc6 23.bc6 Nb2 24.Qc2+=) 23.f3 Nb2 24.Bb2 Qb2 25.fe4 fe4 26.Bg4 Ke7 27.Bh3 Qc3 28.Kh1 Qe3 29.Na1 (29.Bf5 Ra2 30.Bh3 Rb2–+) 29...Qd3 30.Nc2 Bd2 0–1. Laine,Jari (1850) – Hase,Pavel (2115), FICGS, 2008.

7.Bb5 c6 (7...Nd7 8.0–0 Nh6 9.Nc3 Bb4 10.Na2 Bd6 11.Nc3 c6 12.Be2 0–0+=; 7...Kf7 8.0–0 c6 9.Be2 Nd7 10.d4 e4 11.Nfd2 Qb6 12.Bc3 Bd6=) 8.Be2 Bd6 9.Nc3 Ne7 10.Ba3 Ba3 11.Ra3 b5 12.Qb1 Qd6 +=.

6.Nf3 Bd6

7.Ba3 Nh6 (7...Ne7 8.Be2 0–0 9.0–0 ab5 10.ab5 Nd7 11.d4 Nb6 12.de5 fe5+=; 7...c5 8.bc6 Nc6 9.Bd6 Qd6 10.Nc3 b6 11.Rb1 Qc7 12.Rb2 Nge7+=; 7...Ba3 8.Ra3 Ne7 9.d4 e4 10.Nfd2 0–0 11.c4 dc4 12.Qc2 f5=) 8.Be2 ab5 9.ab5 Nf5 10.d4 0–0 11.Bd6 Ra1 12.Bf8 Qf8+=.

7.Nc3 ab5 (7...Ne7 8.Be2 0–0 9.0–0 c5 10.bc6 Nbc6 11.Ba3 Ba3 12.Ra3 e4+=; 7...Nh6 8.Be2 0–0 9.0–0 c5 10.bc6 Nc6 11.Ba3 d4 12.Bd6 Qd6+=; 7...c5 8.bc6 Nc6 9.Ba3 Ba3 10.Ra3 Qe7 11.Ra1 d4 12.Ne4 f5+=) 8.ab5 Ra1 9.Ba1 Ne7 10.Be2 0–0 11.0–0 Nd7 12.d3 Qe8+=.

7.Bd3 ab5 (7...c5 8.ba6 ba6 9.e4 Qb6 10.Ba3 Ne7 11.ed5 Nd5 12.Be4 Ra7=; 7...Ne7 8.0–0 c5 9.ba6 ba6 10.e4 Qb6 11.Ba3 c4 12.ed5 Bd5=; 7...Bg4 8.Be2 ab5 9.ab5 Ra1 10.Ba1 Ne7 11.0–0 0–0 12.Nc3 Nd7+=) 8.ab5 Ra1 9.Ba1 Ne7 10.0–0 0–0 11.Nc3 c5 12.bc6 bc6+=.

7.Be2 ab5 8.ab5 Ra1 9.Ba1 Ne7 10.0–0 0–0 11.Nc3 Nd7 12.Re1 Qe8+=.

7.Be2 c5 8.0–0 Qc7 9.h3 ab5 10.Bb5 Nc6 11.d4 cd4 12.ed4 Nge7+=.

7.Be2 Ne7 8.0–0 0–0 9.Nc3 c5 10.a5 ab5 11.Nb5 Nc8 12.Nd6 Nd6+=.

7.Be2 Ne7 8.0–0 0–0 9.d4 e4 10.Nfd2 c6 11.c4 ab5 (11...Qc7 12.g3 dc4 13.ba6 Na6 14.Ne4=) 12.cd5 (12.c5 Bc7 13.ab5 Ra1 14.Ba1 b6=) 12...cd5 13.ab5 Ra1 14.Ba1 Nd7 (14...Qc7 15.Qb3=) 15.f3 (15.Qb3 f5=) 15...f5 16.Nc3 Nb6 17.Qb3 Qc7 18.h3 Rc8 (better is 18...Bf7!?+=) 19.fe4+= fe4 20.Nce4 Bh2 21.Kh1 Nc4 22.Nf3 (22.Nc4 de4 23.b6 Bc4 24.Qb4+/– (24.bc7?! Bb3 25.Kh2 Rc7=)) 22...Bg3?? (better is 22...de4 23.Nh2 Nf5+=) 23.Nc5 (23.b6 Qb8 24.Nc5 Rc6+–) 23...Bf7 (23...Na5!? 24.Qa2 Bf5+–) 24.Ng5+– Be8?? (24...Na5 25.Qa3 Bg6+–) 25.Bc4 (better is 25.Nce6 Bh5 26.Nc7 Be2 27.Qc2+–) 25...dc4 (25...Qd6 26.Bd3 Bg6 27.Nb7 Qb6+–) 26.Qc4 Kh8 (26...Nd5 27.Qd5 Bf7 28.Rf7 Qf7 29.Qf7 Kh8 30.Qf5 g6 31.d5 Be5 32.Be5 Kg8 33.Qc8) 27.Nf7 (27.Rf8 Ng8 28.Qg8) 27...Bf7+– 28.Qf7 Ng8 1–0. GuestZNXB – GuestGPQW, freechess.org, 2017.

7.Be2 Nh6 8.0–0 Nf5 9.Nc3 e4 10.Ne1 0–0 11.f3 Be5 12.fe4 de4=.

5.a4 Bb4

6.Na3 Ne7 7.Nf3 0–0 8.Be2 e4 9.Nd4 Bf7 10.0–0 Nd7 11.Qc1 f5 (11...c5 12.bc6 bc6 13.f3=) 12.g3 (12.f3 Nf6=) 12...Bd6 13.c4 c5 14.Nb3 (14.bc6 bc6 15.cd5 A) worse is 15...Nd5 16.Nf5 (16.Qc6?! Ne5 17.Qc1 Rc8=) 16...Be5 17.f3+/–; B) 15...Bd5+=) 14...Qc7 15.d4 ed3 16.Bd3 Ne5 17.Be2 Rae8 18.Qc3 a6 (better is 18...dc4 19.Nc4 Nd5=) 19.f4+/– d4 20.ed4 cd4? (better is 20...Nd7!?+/–) 21.Qd4 Rd8 22.Nc2 (better is 22.Qc3 N7g6 23.c5+– (23.fe5?! Be5 24.Qc2 Bg3+–)) 22...N7g6 23.b6 Qe7 (23...Qc6 24.Na5 (24.fe5?! Be5 25.Qc5 Qc5 26.Nc5 Bb2+/–) 24...Qc8 25.Qc3 (25.fe5 Bc5–+) 25...Qc5 26.Kg2 Qb6 27.Rab1+/– (27.fe5 Be5 28.Qb3 Qa5–/+)) 24.Ne3 (better is 24.Qc3!?+–) 24...Be6 25.Nd5 (25.fe5?! Be5 26.Qc5 Bb2 27.Qe7 Ne7=) 25...Bd5 26.cd5 Nd7 27.Bc4 Nc5?? (better is 27...Nf6+/–) 28.Nc5+– Bc5 29.d6 Kh8 30.de7 Bd4 31.Bd4 Ne7 32.Be5 (32.Bc5 Rc8 33.Be7 Rfe8+–) 32...Nc8 (32...Nd5 33.Bd5 Rd5 34.Rfd1 Rd1 35.Rd1+–) 33.Bc7 Rd4 34.Ba6! Rd7 (34...ba6 35.b7) 35.Bb7 Nb6 36.Bb6 A pinning theme 36...Rb7 Eliminates the defender b7 37.a5 Rc8 (37...Ra8 38.Rfb1+–) 38.Ra2 (38.Bd4 Rd7 39.Rfd1 Kg8+–) 38...Ra8 39.Rd2 Re7 40.Rfd1 Kg8 41.Rd6 (41.Rd8 Re8 42.Re8 Re8+–) 41...Rae8 (41...Re2 42.Rd8 Re8 43.Re8 Re8 44.a6+–) 42.Kg2 Kf8 43.Bc5 Re2 44.Kh3 Kg8 45.Rd7 Ra2 (45...h6 46.R1d5 g6 47.a6+–) 46.Ra7 Rc2 47.Bb6 h6 (47...Kf8 48.Rd5 g6 49.Rh7+–) 48.Rdd7 Ree2 The mate threat is Rxh2 49.Rg7 Kf8 50.Raf7 Ke8 51.Rf5 Rh2 52.Kg4 Rce2 (52...Rc3 53.Rd5 Kf8+–) 53.Bc5 h5 54.Kf3 Rhf2+– 1–0. NN – SuperConstellation4, 1988.

6.Qc1 Ne7 7.c4 (7.Be2 c5+=) 7...0–0 (7...Nd7 8.cd5 Nd5 9.e4–/+) 8.Ba3 (8.cd5 Nd5 9.Bc4 c5+=) 8...Ba3–/+ 9.Na3 Nd7 10.cd5 Bd5 11.Bc4 (11.Qc2 f5–/+) 11...Nb6 (11...Nc5 12.Qc2–/+) 12.Bd5+= Qd5 13.Nf3 (13.f3 c6 14.a5 Nbc8+=) 13...Rac8 (13...c5 14.a5 e4 15.Nh4–/+) 14.Qc2 (14.a5 Nd7+=) 14...c6 (14...e4 15.Nd4–/+) 15.Qd1 (15.Nb1 Qd7 16.Nc3 Ned5+=) 15...Rfd8–/+ 16.d4 (16.0–0 e4 17.Nd4 c5–/+) 16...ed4 17.Qd4 Qb3 18.Qc5 (18.Nd2 Qa4 19.Qa4 Na4 20.bc6 Nc6–/+ (20...bc6?! 21.Nab1 Nb6 22.Ra7=)) 18...cb5 (better is 18...Na4 19.Qc2 Qb4 20.Kf1 cb5 21.Qa2 Rd5–+) 19.Qe7?? (better is 19.Qb5 Qc3 20.Ke2–/+) 19...Qc3–+ 20.Ke2 Qb2 (20...Qb2 21.Nd2 Rd2 (21...Qd2?! 22.Kf3 Qd5 23.Qe4 ba4 24.Qd5 Rd5 25.Rhc1–+) 22.Kf3 Rf2 23.Kg3 Rg2 24.Kh3 Qe2 25.Qe6 Kh8–+). Wantoch_Rekowski,Jacek – Wlosek,Maciej, corr 2AMM Poland, 1994.

6.Ne2 Ne7 7.c3 Bd6 8.Ng3 c5 9.Be2 c4 10.d3 0–0 (10...cd3 11.Bd3 e4 12.Be2+=) 11.0–0 Nd7 (11...cd3 12.Bd3 e4 13.Be2+=) 12.Nd2 (12.dc4 Nc5+/–) 12...Rc8 (12...cd3 13.Bd3 Nc5 14.Be2+=) 13.d4 (13.dc4!? dc4 14.Nc4 Bc4 15.Qd6 Be2 16.Qe6 Kh8 17.Ne2+=) 13...e4 14.f3 Bg3 15.hg3 f5 16.f4 Qe8 17.Kf2 Qg6 18.Ba3 Rfe8 (18...Qf7 19.a5+=) 19.Rh1 (19.Bh5 Qf6 20.Be8 Re8 21.Be7 Qe7+/–) 19...h6 (19...Qf6 20.a5+=) 20.Bd6 (better is 20.Bh5!? Qf6 21.Be8 Re8 22.Be7 Qe7 23.Kg1+/–) 20...Qf6 21.Be5 Ne5 22.de5 Qf8 23.Nb1 a6 24.Na3 Bd7 (24...Ra8 25.Kg1+=) 25.Qb1 (better is 25.ba6!? Rc7 26.Nb5 Bb5 27.ab5 ba6 28.ba6=) 25...Rc5 26.ba6 ba6 27.Nc2 Rb8 28.Qc1 Qc8 29.Nd4 Nc6 30.Qa3 Nd4 31.ed4 Rc7 32.Rhb1 Rcb7 33.Rb7 Rb7 34.Ra2 Qf8 35.Qc1 Rb3 36.Qc2 Qb8 37.Ke3? (37.Qd2 Be6–/+) 37...Kf7?? (better is 37...Qb4! 38.Kf2 Rc3–+ (38...Qc3?! 39.Qc3 Rc3 40.Bd1–+)) 38.Kd2 g6 39.Ra1?? (better is 39.a5–/+) 39...Rb2–+ 40.Rc1 (40.Rb1 Rb1 41.Ke3–+) 40...Rc2 41.Rc2 Qb3 (41...Qb3 42.Bd1 Qb1–+) 0–1. rom49szachy – leopardi99, internet, 2012.

6.Nf3 Ne7 7.Be2 0–0 8.0–0 a6 9.c3 Bd6 10.d3 ab5 11.ab5 Ra1 12.Ba1 Qe8 13.c4 Qg6 14.g3 (14.d4 dc4 15.de5 fe5 16.Ne5 Qh6+=) 14...Bh3 15.Re1 Nd7 16.Bf1 Bf1 17.Rf1 Nb6 18.d4? (better is 18.cd5!? Ra8 19.Nc3+=) 18...Nc4–+ 19.de5 fe5 20.Nc3 Qf5 21.Nd5 Qf3 22.Ne7 Be7 23.Qf3 Rf3 24.Rc1 Nd6 25.Rc7 Bf6 26.Rd7 Nb5 27.Rb7 Nd6 28.Kg2? (28.Rc7–+) 28...Nb7 29.Kf3 e4! 30.Ke4 Ba1 31.Kd5 Kf7 32.Ke4 (32.f4 Nd8–+) 32...Ke6 33.Kf3 g5 34.Kg2 h5 35.h3 Be5 36.g4 (36.f4 Bf6 37.Kf3 Nc5–+) 36...h4 37.f3 Nc5 38.f4 (38.Kf1 Kd5–+) 38...gf4 39.ef4 Bf4 40.Kf3 Ke5 41.g5 Bg5 42.Kg4 Ne4 43.Kh5 Bd8 44.Kg4 Nf2 (44...Nf2 45.Kf3 Nh3–+) 0–1. kannisogoet – mariokinia, playok.com, 2012.

6.c3 Bd6

7.d4 Ne7

8.Nf3 e4 9.Nfd2 0–0 10.Be2 a6 A) 11.Ba3 A1) 11...Nf5 12.Qb3 (12.Nb3 Qe7 13.Bd6 Nd6 14.0–0 ab5 15.ab5+=; 12.0–0 Qe8 13.c4 dc4 14.Qc2 ab5 15.ab5=) 12...ab5 13.Ne4 Ba3 14.ab5 Nh4 15.0–0=; A2) 11...b6 12.0–0 (12.Nb3 c6 13.Bd6 Qd6 14.ba6 Na6 15.a5=; 12.Qb3 f5 13.0–0 ab5 14.ab5 c5 15.bc6=; 12.Bd6 Qd6 13.ba6 Na6 14.c4 Nb4 15.Nc3+=) 12...c5 13.bc6 Nbc6 14.c4 f5 15.Bd6=; A3) 11...ab5 12.ab5 Nd7 13.c4 dc4 14.Bc4 Bc4 15.Nc4=; A4) 11...Ba3 12.Ra3 (12.Na3 f5 13.0–0 f4 14.Qb3 ab5 15.ab5=) 12...Qd6 13.Qb3 Qd7 14.0–0 f5 15.f3=; A5) 11...f5 12.0–0 (12.c4 dc4 13.Nc4 Ba3 14.Nba3 ab5 15.ab5+=) 12...f4 13.Qb3 Qd7 14.Bd6 Qd6 15.c4=; B) 11.Na3 B1) 11...Nd7 12.Qb3 (12.c4 c5 13.bc6 bc6 14.Qc2 f5 15.c5+=) 12...f5 13.c4 c5 14.bc6 bc6 15.c5=; B2) 11...Qe8 12.Bh5 Qd7 13.0–0 c6 14.b6 c5 15.c4=; B3) 11...c6 12.c4 dc4 13.ba6 Na6 14.Nac4 Bb4 15.Ba3=; B4) 11...Nf5 12.Qb3 (12.0–0 c6 13.Qb3 Re8 14.c4 Qa5 15.Qc2=; 12.c4 Bb4 13.0–0 ab5 14.Nb5 Na6 15.Ba3=) 12...Qe8 13.c4 Qg6 14.g3 Qf7 15.c5=; B5) 11...f5 12.c4 Bb4 13.c5 b6 14.cb6 cb6 15.Nc2+=; C) 11.Qb3 C1) 11...Qc8 12.c4 c5 13.cd5 Bd5 14.Bc4 Qe6 15.Bd5+–; C2) 11...f5 12.c4 (12.ba6 Na6 13.Ba3 Ra7 14.0–0 Rf6 15.c4=; 12.Ba3 ab5 13.ab5 Nd7 14.c4 c5 15.bc6+=) 12...dc4 13.Bc4 Bf7 14.Nc3 c6 15.0–0=; C3) 11...ab5 12.Ne4 ba4 13.Qb7 Nbc6 14.Nd6 Qd6 15.Ba3+=; D) 11.0–0 ab5 12.ab5 Ra1 13.Ba1 f5 14.c4 dc4 15.Nc3=.

8.Nf3 e4 9.Nfd2 0–0 10.Be2 c6 11.Ba3 A) 11...a6 12.Qb3 (12.0–0 b6 13.c4 ab5 14.ab5 f5 15.Qb3=) 12...Qd7 13.Bd6 Qd6 14.ba6 Na6 15.0–0=; B) 11...b6 12.c4 a6 13.Bd6 Qd6 14.Nc3 f5 15.0–0=; C) 11...Nf5 12.Qb3 (12.0–0 Qc7 13.Bd6 Nd6 14.Qc2 Nd7 15.Rc1=; 12.Bd6 Nd6 13.0–0 a6 14.Na3 Qc7 15.Qb3=; 12.Qc2 Qd7 13.c4 Rc8 14.c5 Bc7 15.0–0=) 12...Ba3 13.Na3 Nd6 14.0–0 Nd7 15.bc6=; D) 11...f5= 12.Qb3 (12.c4 Ba3 13.Na3 f4 14.0–0 Nf5 15.Nc2+=) 12...b6 13.c4 c5 14.Nc3 cd4 15.ed4=; E) 11...cb5 12.ab5 f5 13.Bd6 Qd6 14.Qb3 Nd7 15.Qa3=.

8.Nf3 e4 9.Nfd2 0–0 10.Be2 c6 11.Na3 Nd7+= (11...Qa5 12.c4 (12.Qb3 f5 13.bc6 Nbc6 14.Nb5 Bb8 15.c4=; 12.0–0 Qc7 13.h3 Nd7 14.c4 Bb4 15.cd5=; 12.bc6 Nbc6 13.Nb5 Bb8 14.Nb3 Qd8 15.Nc5=) 12...Bb4 13.cd5 Nd5 14.Nac4 Qd8 15.Ba3=; 11...Qd7 12.0–0 (12.c4 f5 13.c5 Bc7 14.0–0 f4 15.Nc2=) 12...Qc7 13.h3 Nd7 14.c4 Bb4 15.cd5=; 11...a6 12.c4 dc4 13.ba6 Na6 14.Nac4 Bb4 15.Ba3=; 11...Qc7 12.c4 (12.bc6 bc6 13.c4 f5 14.Rc1 a6 15.cd5=; 12.Qb3 f5 13.c4 f4 14.bc6 bc6 15.cd5=) 12...Nf5 13.c5 Be7 14.Qb3 Qd7 15.0–0=; 11...Qe8 12.0–0 (12.bc6 Nbc6 13.Nb5 Bb8 14.Bh5 Qd7 15.c4+=) 12...Qg6 13.Nc2 a6 14.c4 dc4 15.Nc4+=; 11...b6 12.c4 (12.Qc2 Qe8 13.c4 Qg6 14.g3 Rc8 15.f3+=) 12...f5 13.Qc2 f4 14.0–0 Nf5 15.ef4+=) 12.0–0 (12.c4 Bb4 13.0–0 Rc8 14.Nc2 Bd2 15.cd5=) 12...Qc7 13.g3 (13.h3 c5 14.c4 Rad8 15.Rc1+=) 13...Bh3 (13...c5 14.c4 Rac8 15.cd5=) 14.Re1 f5 (14...Nb6 15.bc6+= (15.a5 Nd7 16.Qa4+=)) 15.Kh1 (15.c4 Bb4+=) 15...Rf6 (15...Bg4 16.c4 Bb4 17.cd5 Nd5 18.Nac4–/+) 16.Rg1 (16.c4 Bb4+=) 16...Raf8 (16...Bg4 17.c4 Bb4 18.c5–/+) 17.c4+= Ng6 (17...Bb4!?+=) 18.Qb3= dc4 19.Nac4 Be7 20.bc6 bc6 21.Rac1 R6f7 22.Nb1 (22.Na3 Qa5 23.Rgd1 Rb8=) 22...Rb8 23.Qa2 (23.Qc2 Nf6=) 23...c5 (23...Bg4 24.Ba3 c5 25.Rgd1 Be2 26.Qe2=) 24.d5 (24.Ncd2 Kf8=) 24...Nde5 25.Nca3 (better is 25.Ne5!? Ne5 26.Rgd1+=) 25...Ng4–/+ 26.Bg4 Bg4 27.Rge1 (27.Rgf1 Qd7 28.Nd2 Rd8–+) 27...Qb7 28.Rc2 Bf3 (28...Qd7 29.Nb5–+) 29.Kg1–/+ Rd8 30.Nc3 Bf6 31.Rd2 Ne5 32.Nc4 (32.Ncb5 Nd3 33.Bf6 Rf6–/+) 32...Nd3–+ 33.Rb1 Nb2 (better is 33...Bc3 34.Bc3 Qd5–+) 34.Rbb2+= Qa8 35.Rb3 Bc3 36.Rc3 Rd5 37.Nd6 Rd2 38.Qd2 Rc7 39.Nf5 Bg4?? (39...Qb8 40.Rc1=) 40.Qa2?? (better is 40.Qd6 Rf7 41.Rb3+–) 40...Kh8= 41.Nd6 h6 42.Qc2 Bf3 (42...Rd7 43.h3 Bh3 (worse is 43...Rd6 44.hg4 Qd5 45.Rc5+/–) 44.Qe4 Qf8= (44...Rd6 45.Qa8 Kh7 46.Rc5+–)) 43.Rc5+= Rc5 44.Qc5 Qb8 45.Qc8 Qc8 46.Nc8 a5 47.Kf1 g6 48.Ke1 Bg4 49.Ne7 Kg7+= 50.Nd5 Bd7 51.Nc3 Bc6 52.Kd2 Kf6 53.Kc2 Ke5 54.Kb3 Bb7? 55.Kc4+– Bc6 56.Kc5 Bd7 57.Kb6 Bg4 58.Ka5 Be6 59.Kb6 Bd5 60.a5 Ba8 61.a6 Ke6 62.a7 Kd6 63.Nb5 Kd7 64.Nc7 Bc6 65.a8Q Ba8 66.Na8 Kd6 67.Nc7 Kd7 68.Nd5 Ke6 69.Kc6 Kf5 70.Kd6 Kg4 71.Ke5 Kf3 72.Kf6 Kf2 73.Kg6 Kg2 74.Kh6 Kh2 75.g4 Kg3 1–0. NN – SuperConstellation4, 1987.

8.Nf3 e4 9.Nfd2 0–0 10.Be2 c6 11.Qb3 Qd7 12.c4 f5 13.c5 Bc7 14.f4 Rc8 15.0–0 =.

8.Nf3 e4 9.Nfd2 0–0 10.Be2 Qe8 11.Bh5 (11.Ba3 Ba3 12.Na3 Qg6 13.Rg1 f5 14.a5 f4 15.ef4+=) 11...Bf7 (11...Qd7 12.c4 dc4 13.Ne4 a6 14.Nbc3 ab5 15.ab5=) 12.Bf7 (12.Be2= a6 13.Ba3 Ba3 14.Na3 Be6 15.0–0=) 12...Qf7 13.c4 dc4 14.Ne4 a6 15.Nbc3 =.

5.a4 c5

6.Ra3 c4 7.h4? Ba3–+ 8.Na3 Ne7 9.h5 h6 10.Qa1 0–0 11.Nf3 b6 12.Be2 e4 13.Nh4 Nd7 14.g4 Nc5 15.Nb1 Rc8 16.Nf5 Bf5 17.gf5 Nf5 18.Rg1 Rf7 19.Bg4 Rcc7?? 20.Bf5+= Qd6 21.Bd4 Qh2= 22.Kf1 Qh5 23.Bc5 Qf5 24.Bd4 Qh3 25.Ke1 Qh2 26.Kf1 Qh5 27.Nc3 Rcd7 28.Ne2 f5 29.Bg7?? Rg7–+ 30.Rg7 Rg7 31.Nf4 Qh1 32.Ke2 Qa1 33.Ne6 Qa4 (33...Qa4 34.Ng7 Kg7–+; 33...Rg1 34.a5 Qd1) 0–1. xtom – sylabus (1605), internet, 2011.

6.a5 c4 A) 7.d4 e4 (7...Qd7 8.de5 Qb5 9.Bc3 Nc6 10.Nf3 Bb4=; 7...a6 8.b6 Nc6 9.Be2 e4 10.Ba3 Ba3+=) 8.Ne2 Qd7 9.Ba3 Qb5 10.Bf8 Kf8+=; B) 7.f4 Qd7 (7...Nd7 8.Nf3 ef4 9.Nd4 Bf7 10.ef4 Bc5=; 7...ef4 8.ef4 Bb4 9.Bc3 Bc3 10.Nc3 Ne7=) 8.Nc3 ef4 9.ef4 Bb4 10.Nf3 Ne7+=; C) 7.d3 Bb4 (7...Qc7 8.dc4 dc4 9.a6 Nd7 10.Qf3 Rb8=) 8.Bc3 Bc3 9.Nc3 cd3 10.Bd3 Ne7=.

6.a5 Bd6 7.d4 ed4 (7...Nd7 8.de5 Ne5 9.Nh3 Ng6 10.a6 b6+=; 7...cd4 8.ed4 e4 9.Bc1 Ne7 10.Ne2 Ng6+=; 7...Ne7 8.de5 fe5 9.Nf3 Ng6 10.c4 d4=) 8.ed4 c4 9.Qe2 Kf7 10.Qh5 g6 +=.

6.a5 Nd7 A) 7.Nc3 Bd6 (7...a6 8.Qh5 g6 9.Qf3 Ne7 10.b6 h5+=; 7...d4 8.Ne4 a6 9.Qh5 g6 10.Qe2 ab5+=) 8.a6 b6 9.Nge2 Qc7 10.Ng3 0–0–0+=; B) 7.Be2 a6 8.b6 Bd6 9.d4 cd4 10.ed4 Rc8+=; C) 7.a6 b6 8.c4 dc4 9.Ra4 Nh6 10.Bc4 Bc4=.

6.a5 Nh6 A) 7.Qh5 Nf7 (7...g6 8.Qe2 c4 9.f4 Bd6 10.fe5 fe5=; 7...Bf7 8.Qf3 e4 9.Qh3 Bd6 10.d3 0–0+=) 8.Be2 Bd6 9.Nc3 f5 10.a6 ba6+=; B) 7.c4 dc4 (7...Be7 8.cd5 Qd5 9.Nc3 Qd7 10.a6 Bg4=; 7...Bd6 8.cd5 Bd5 9.Nc3 Be6 10.Qf3 Nd7+=) 8.Qc2 a6 9.Bc4 Bc4 10.Qc4 ab5=.

6.Nc3 d4 A) 7.Nb1 Nh6 (7...Bd6 8.Qh5 g6 9.Qf3 Qd7 10.Be2 f5+=; 7...Ne7 8.a5 Nd5 9.c3 de3 10.de3 Bd6=; 7...de3 8.fe3 Ne7 9.a5 Nd5 10.Qf3 Nb4=; 7...Be7 8.Bd3 f5 9.Qh5 g6 10.Qe2 Bd5+=; 7...Bd5 8.c4 Be4 9.d3 Bg6 10.Nf3 Nh6=; 7...Nd7 8.a5 a6 9.Qh5 Bf7 10.Qg4 Bd5+=) 8.a5 Nf7 9.Be2 a6 10.ba6 ba6+=; B) 7.Ne4 Bd5 (7...Be7 8.Qh5 Bf7 9.Qe2 Nh6 10.ed4 cd4+=; 7...f5 8.Ng3 Nf6 9.Nh3 h6 10.f4 Bd6=; 7...Nh6 8.a5 Be7 9.Ng3 0–0 10.Qf3 Bd5+=; 7...Nd7 8.a5 a6 9.Qh5 g6 10.Qe2 ab5+=) 8.Qf3 Nh6 9.Qh5 g6 10.Qh4 Nd7+=.

6.Nc3 Bd6 A) 7.a5 Ne7 (7...Nh6 8.e4 d4 9.Nd5 f5 10.Bc4 fe4+=) 8.Qh5 g6 9.Qf3 0–0 10.a6 ba6–/+; B) 7.e4 d4 8.Nd5 Ne7 9.Ne7 Be7 10.Be2 Qd7+=; C) 7.Rb1 Ne7 (7...Nd7 8.e4 d4 9.Nd5 f5 10.Bc4 fe4+=; 7...Nh6 8.Qh5 Bf7 9.Qf3 e4 10.Qh3 Nd7+=) 8.Nf3 0–0 9.Be2 e4 10.Ng1 f5–/+; D) 7.Bd3 Ne7 (7...f5 8.Nh3 d4 9.Nb1 Qh4 10.0–0 Ne7+=) 8.Qh5 Bf7 9.Qh3 Nd7 10.a5 c4–/+; E) 7.Qh5 Kd7 (7...g6 8.Qf3 e4 9.Qd1 Nd7 10.a5 Qc7=) 8.e4 d4 9.Nd5 f5 10.Bd3 g6+=.

6.Nc3 Nd7 =.

6.Nc3 Nh6 A) 7.a5 c4 (7...Nf7 8.Qf3 Be7 9.Nh3 Qd7 10.Be2 a6+=; 7...Be7 8.Qh5 Nf7 9.Be2 0–0 10.Bg4 g6+=; 7...d4 8.Ne4 Be7 9.Qf3 Bd5 10.Qh5 Nf7+=; 7...Bd6 8.e4 d4 9.Nd5 f5 10.Bc4 fe4+=) 8.f4 Bb4 9.fe5 fe5 10.Nf3 Nf7+=; B) 7.Qf3 Nf7 (7...d4 8.Nd1 Qd7 9.a5 a6 10.ed4 cd4+=; 7...f5 8.a5 Be7 9.a6 ba6 10.ba6 0–0+=; 7...e4 8.Qh5 Bf7 9.Qd1 Bd6 10.d3 Be5=) 8.a5 c4 9.Qg3 a6 10.b6 Nc6+=; C) 7.Nf3 Nd7 (7...Qa5 8.Be2 Bd6 9.0–0 0–0 10.Qb1 Re8+=; 7...d4 8.Ne4 Be7 9.Ng3 0–0 10.Be2 a6+=; 7...Bd6 8.e4 d4 9.Nb1 0–0 10.Na3 f5+=; 7...Nf7 8.a5 Be7 9.Be2 e4 10.Ng1 0–0+=; 7...Be7 8.Be2 d4 9.Ne4 f5 10.Ng3 f4+=) 8.e4 d4 9.Nb1 c4 10.Na3 Rc8–/+; D) 7.Qh5 g6 (7...Nf7 8.a5 c4 9.f4 Bb4 10.f5 g6=; 7...Bf7 8.Qf3 d4 9.Nd1 Bd5 10.Qh5 Nf7+=) 8.Qf3 Nf7 9.a5 c4 10.Nh3 a6+=.

6.c4 Ne7 7.Qc2 Nd7 8.Nf3 e4 9.Ng1 f5 10.d3 Nf6 11.Nd2 Qd6 (11...Neg8 12.cd5 Bd5 13.de4 Ne4 14.Rd1+=) 12.Nh3 (12.Bf6 gf6 13.cd5 Nd5 14.de4 Qe5=) 12...d4= 13.de4 de3 (13...Rd8 14.ed4 cd4 15.Ng5+/–) 14.fe3+= Ng4 15.Ra3 Ne5 (15...Nh2? 16.e5 Qd7 17.Rd3+–) 16.Be2 0–0–0 17.Ng5 h5 18.Ndf3 Nf3 19.Bf3 Bc4 20.Rc3 Bd3 21.e5 (21.Nf7 Bc2 22.Nd6 Rd6 23.Rc5 Kd7 24.Rc2 Rhh6+–) 21...Qd7 22.e6 Qd6 23.Qd2 c4? (23...Bb1 24.Qd6 Rd6+–) 24.Be2 (24.Be2 Be2 25.Qe2+/– (25.Ke2?? Qd2 26.Kf3 Qb2 27.Rc4 Kb8–+); 24.Nf7 Qe6 25.Nh8 Qg8+–) 1–0. Taulien,Hans_Juergen (2225) – Kreuzer,Uwe (1960), remoteschach.de, 2003.

6.Bd3 c4 7.Be2 Bd6 8.h4 Ne7 9.h5 h6 10.Nf3 Nd7 11.Nc3 b6 12.Nh4 Nc5 13.a5 ba5 14.d4 ed4 15.Qd4 Qc7 16.Ba3 Rc8 17.Bc5 Be5 18.Qd2 Qc5 19.0–0?? Qb4–+ 20.Nb1 Ba1 21.Qb4 ab4 22.Nd2 Be5 23.Ndf3 Bb8 24.Ra1 Bd7 25.b6 ab6 26.Nd4 Be5 27.Ra7 Bd4 28.ed4 Nc6 29.Rb7 Nd4 30.Bf3 Bc6 31.Rg7 Nc2 32.Bg4 Ra8 33.Ng6 b3 34.Nh8 b2 35.Rg8 Ke7 36.Ng6 Kd6 (36...Kd6 37.Ra8 b1Q 38.Kh2 Ba8–+) 0–1. xtom (1610) – mirosh (1770), internet, 2011.

6.d4 cd4 7.ed4 Nd7 (7...Bb4 8.Nd2 Nd7+= 9.de5 fe5 10.f4 ef4+=; 7...Qa5 8.Nd2 Nd7 9.de5 fe5 10.Ngf3 Bd6=) 8.a5 Bb4 9.Bc3 Bc3 10.Nc3 Rc8 +=.

6.d4 ed4 7.ed4 c4 8.Be2 a6 9.ba6 Ra6 10.Nf3 Qb6 =.

6.Be2 Nd7 A) 7.Nc3 d4 8.Ne4 f5 9.Ng3 Ngf6 10.a5 a6+=; B) 7.a5 a6 8.b6 Bd6 9.d4 cd4 10.ed4 Rc8+=; C) 7.d3 Nh6 (7...a6 8.c4 ab5 9.ab5 Ra1 10.Ba1 Nb6=; 7...Qa5 8.Qd2 Qc7 9.a5 Bd6 10.c4 Ne7=; 7...Bd6 8.Nf3 Ne7 9.0–0 Qa5 10.c4 0–0=; 7...Be7 8.a5 a6 9.b6 Nh6 10.c4 0–0=) 8.a5 a6 9.b6 Qe7 10.Nf3 g5+=; D) 7.Bh5 g6 8.Be2 Bd6 9.Nf3 Nh6 10.0–0 0–0=.

6.Be2 Be7 A) 7.Bg4 Bf7 (7...Qd7 8.Be6 Qe6 9.Qf3 e4 10.Qh5 g6=; 7...Qd6 8.Qf3 Bf7 9.Qg3 Bf8 10.d4 ed4=; 7...Qc8 8.Bh5 g6 9.Be2 Bd6 10.d4 cd4=) 8.d4 cd4 9.ed4 Nh6 10.Be2 Bb4+=; B) 7.a5 Qd7 (7...Nh6 8.d4 cd4 9.ed4 Bb4 10.Bc3 Bc3=; 7...Bd6 8.Bg4 Bf7 9.Bh5 Bh5 10.Qh5 g6=) 8.Nc3 d4 9.Na4 Bd5 10.f3 Nh6+=; C) 7.d3 a6 (7...Bd6 8.Nf3 Ne7 9.0–0 0–0 10.a5 Qc7=; 7...Nh6 8.Nf3 Nd7 9.a5 0–0 10.0–0 a6=; 7...Nd7 8.a5 a6 9.b6 Nh6 10.c4 d4=; 7...Qa5 8.Bc3 Qc7 9.a5 Bd6 10.Nf3 Ne7=; 7...Qd7 8.Nf3 Bd6 9.0–0 Ne7 10.c4 0–0=; 7...Qd6 8.Nf3 Nh6 9.0–0 a6 10.ba6 ba6=) 8.d4 cd4 9.ed4 Qa5 10.Qd2 Bb4+=; D) 7.Bh5 g6 8.Be2 Bd6 9.d4 cd4 10.ed4 Ne7+=.

6.Be2 Nh6 A) 7.a5 Bd6 8.c4 0–0 9.Qc2 a6 10.cd5 Bd5+=; B) 7.d3 a6 (7...Bd6 8.e4 d4 9.Bc1 Nf7 10.Bg4 Qd7+=) 8.d4 ed4 9.ed4 c4 10.ba6 Na6+=; C) 7.Bf3 a6 (7...e4 8.Bh5 Nf7 9.d4 g6 10.Be2 c4+=; 7...Bd6 8.Nc3 e4 9.Bh5 Nf7 10.d3 ed3+=; 7...Nd7 8.a5 a6 9.b6 e4 10.Bh5 Nf7+=; 7...Be7 8.Ne2 Nf5 9.Nec3 Nh4 10.e4 Nf3+=; 7...Qd7 8.d4 cd4 9.ed4 e4 10.Bh5 Nf7+=; 7...Nf5 8.Nc3 Nh4 9.e4 d4 10.Nd5 Bd5+=; 7...Nf7 8.d3 a6 9.Nd2 ab5 10.ab5 Ra1+=) 8.e4 d4 9.Na3 c4 10.Be2 ab5–/+; D) 7.Nc3 Be7 (7...Bd6 8.Bf3 e4 9.Bh5 Nf7 10.d3 ed3+=; 7...Nf7 8.a5 Be7 9.Nf3 e4 10.Ng1 0–0+=; 7...d4 8.Ne4 f5 9.Ng3 Bd6 10.ed4 cd4+=) 8.Nf3 e4 9.Ng1 0–0 10.d3 f5+=; E) 7.d4 cd4 8.ed4 Bb4 9.c3 Bd6 10.Ba3 0–0+=.

6.Nf3 Nd7 7.Ra3 Bd6 8.h4 Ne7 9.h5 0–0 10.h6 g6 11.Be2 b6 12.g4 c4 13.g5 f5 14.Rh4 Qc7 15.a5 Ba3 16.Na3 f4 17.Qa1 Nf5 18.Rh2 fe3 19.de3 d4 20.ed4 e4 21.Ne5 Ne5 22.de5 e3 23.f3? Rad8 24.Qa2 ba5?? 25.Nc4? Nd4–+ 26.Bd4 Rd4 27.Qb2 Rc4 28.Bc4 Qc4 29.Re2 Rf3 30.b6 Bh3 31.ba7 Rf1 0–1. xtom – kreten1, internet, 2011.

6.g4 Bd6 A) 7.Nc3 Ne7 8.Bg2 Nd7 9.a5 a6 10.b6 Rc8+=; B) 7.d4 cd4 (7...Ne7 8.dc5 Bc5 9.g5 Bb4 10.c3 Bc5+=; 7...ed4 8.ed4 cd4 9.Bd4 Qe7 10.Bg2 Bg4+=; 7...Nd7 8.a5 ed4 9.ed4 Qe7 10.Be2 Bg4–/+) 8.ed4 Nh6 9.g5 Nf7 10.de5 fe5–/+; C) 7.a5 Nh6 (7...Ne7 8.g5 Ng6 9.Bg2 fg5 10.c4 Qd7–/+; 7...Bc7 8.a6 ba6 9.ba6 Nh6 10.h3 0–0–/+) 8.h3 Bc7 9.a6 ba6 10.ba6 0–0–/+; D) 7.Bh3 Ne7 (7...Qd7 8.d4 ed4 9.ed4 h5 10.Qe2 Kd8–/+; 7...Nd7 8.g5 Qe7 9.Nc3 f5 10.Qh5 g6–/+; 7...a6 8.g5 Bf7 9.Qg4 ab5 10.ab5 Ra1+=; 7...Qc8 8.g5 fg5 9.Qh5 g6 10.Be6 Qe6–/+) 8.g5 f5 9.f4 Nd7 10.Ne2 Ng6–/+; E) 7.Bg2 Ne7 8.Nc3 Bc7 9.Ba3 Nd7 10.Nge2 0–0+=.

6.g4 Qd7 A) 7.Be2 Bd6 (7...d4 8.h3 Bd6 9.Bd3 Nh6 10.Be4 0–0–/+) 8.d4 cd4 9.ed4 e4 10.Ba3 Ne7–/+; B) 7.h3 Bd6 8.d4 Ne7 9.dc5 Bc5 10.g5 Qc7+=.

6.g4 Nd7 A) 7.a5 Nh6 (7...a6 8.b6 Nh6 9.h3 Qe7 10.Bg2 0–0–0+=) 8.h3 a6 9.b6 Qe7 10.Bg2 0–0–0+=; B) 7.f4 Nh6 (7...Rc8 8.f5 Bf7 9.a5 Bd6 10.Bg2 e4+=; 7...Bd6 8.f5 Bf7 9.Nc3 Ne7 10.a5 b6–/+; 7...Rb8 8.f5 Bf7 9.Bg2 Bd6 10.Ne2 Ne7+=; 7...Qa5 8.f5 Bf7 9.Bg2 Bd6 10.c4 Ne7+=; 7...Ne7 8.a5 a6 9.b6 f5 10.Bh3 ef4+=) 8.f5 Bf7 9.Nc3 Qa5 10.e4 d4–/+; C) 7.Be2 Bd6 (7...Nh6 8.f4 Bd6 9.Nh3 0–0 10.0–0 Qc7+=) 8.a5 a6 9.b6 Qe7 10.Nc3 0–0–0–/+; D) 7.h3 Bd6 8.Nc3 Ne7 9.a5 0–0 10.a6 ba6–/+; E) 7.Bg2 Bd6 (7...Nh6 8.h3 Bd6 9.c4 Nb6 10.d3 dc4=) 8.c4 Ne7 9.Nc3 d4 10.Ne4 Bc7+=.

6.g4 Nh6 7.h3 (7.g5 Nf5 (7...Nf7 8.gf6 Qf6 9.Ne2 Qf3 10.Rg1 Qh5+=) 8.gf6 Qf6 9.Nc3 Bd6 10.e4 d4+=) 7...a5 (7...Be7 8.d4 cd4 9.ed4–/+ Nf7 10.Bg2 0–0+=; 7...Bd6 8.Bg2 c4 9.Nc3 Bb4 10.Nge2 f5+=; 7...Nd7 8.Bg2 Bd6 9.c4 Nb6 10.d3 dc4=) 8.Nf3 (8.Bg2 Nd7+= 9.c4 Nb6 10.d3 Be7+=) 8...Bd6–/+ 9.d3 (9.c4 e4 10.cd5 Bd5+=) 9...Nd7 10.c4 d4 (10...Nb6 11.cd5 Nd5 12.Bg2+=) 11.e4 Nf7 12.Nh4 g6 13.Ng2 h5 14.Be2 hg4 15.Bg4 f5 16.ef5 gf5 17.Bf3 Qc7 18.h4 0–0–0 19.Bc1 e4! 20.de4 fe4 21.Be4 Bc4 22.Qc2 (22.Nd2 Be6–/+) 22...Rde8 (22...Be6 23.Nd2–/+) 23.f3 (23.Qc4 Re4 24.Kd1 Nde5–/+) 23...Bg3 (23...Be6 24.Nd2–/+) 24.Kd1 Nd6 25.Nd2 Ne4 26.Ne4 Bd5 27.Ng5 (27.Ra3!?–/+) 27...c4 (27...Qe5 28.Ra3 Bh4 29.Ne4–+) 28.Ba3? (better is 28.Qf5 c3 29.Ra3–+) 28...d3 (28...d3 29.Qb1 Qe5–+) 0–1. Pemberton,Ray – Vehre,John, corr USA, 1980.

6.c4 d4

7.Bd3 Nd7 8.Qe2 (8.Nf3 Bd6=) 8...Ne7 (8...a6 9.Nf3 ab5 10.ab5 Ra1 11.Ba1=) 9.f4 (9.Nf3 Kf7=) 9...f5 10.fe5 Ne5 11.ed4 N7g6 (worse is 11...Nd3 12.Qd3 cd4 13.Ne2+=) 12.Kd1 (12.de5? Nf4 13.Ra3 Ne2 14.Ne2 Bc4 15.Bf5 Qh4 16.g3 Qh5–+) 12...Nd3 13.Qd3 (13.Qe6? Qe7 14.Qe7 Be7–/+) 13...cd4 14.Nf3 Nf4 15.Qf1 (15.Qd4 Qd4 (15...Ng2? 16.Rg1+–) 16.Nd4 Bc4+=) 15...Bc5–/+ 16.d3 0–0 17.Nbd2 Bf7 (17...Qd6 18.Nb3 Bb4 19.Bd4–/+) 18.Nb3+= Bb4 19.g3 (19.Nbd4 Qc7+=) 19...Ne6 20.Kc2 Qc7 (20...f4 21.Nbd4 Nd4 22.Nd4+=) 21.Bd4 (21.Nbd4 Nc5 22.Qc1 Rae8=) 21...Nd4–/+ 22.Nfd4 g6 (22...Rae8 23.Kb2–/+ (23.Nf5? Qe5 24.Nbd4 Bg6–+; 23.Qf5?? Bc4 24.Rac1 Rf5–+)) 23.h4 Qg3 24.h5 Rae8 25.Rh3 Qe5 26.Qg2 f4 27.Rah1 (27.hg6 Bg6 (worse is 27...hg6 28.Rah1+/–) 28.Rg1 Re7+=) 27...g5–/+ 28.Kb1 (28.h6!? Bg6 29.Qb7–/+) 28...Kh8 0–1. capablancaven (2285) – original_sin (2165), gameknot.com, 2013.

7.ed4 cd4–/+ 8.d3 Qa5 9.Nd2 Nd7 10.Qh5 (10.Ngf3 Bb4+=) 10...g6–/+ 11.Qe2 (11.Qd1 Kf7–/+) 11...Nc5 12.Qd1 (12.f4 Bh6 13.fe5 Be3–+) 12...Bd6 (12...Bf5!? 13.Qc2–+) 13.Ngf3–/+ Nh6 (13...Bf5 14.Ba3–/+) 14.h3 (14.Be2 0–0–/+) 14...Nf5 (14...Bf5 15.Qc2–/+) 15.g4 (15.Be2 0–0–/+) 15...Ng7 16.Qc2 (16.Be2 h5 17.0–0 hg4 18.hg4 Qc7–+) 16...0–0 (16...Kf7!? 17.g5–+) 17.Bg2–/+ Bd7 18.0–0 Qc7 19.Nb3 Nge6 20.Bc1 White prepares g5 20...Kg7 21.Nbd2? (better is 21.Nc5 Nc5 22.Rd1–/+) 21...Nf4–+ 22.Ne1 (22.Ne4 Ncd3 23.Nd6 Qd6–+) 22...Ng2 (22...f5!? 23.gf5 Bf5 24.Ne4 Nh3 25.Bh3 Bh3 26.Nc5 Bc5 27.Ng2–+) 23.Kg2 f5 24.g5 f4 (24...Ne6 25.Ndf3–+) 25.f3? (better is 25.Ba3!?–/+) 25...h6 (25...Rh8!? 26.Ba3–+) 26.gh6 Kh6 27.Ne4 Ne4 28.de4 g5 (28...Qd8!? 29.c5 Rc8 30.Nd3–+) 29.Nd3 b6 (29...a6 30.Qb3 Qc8 31.Ba3 Bh3 32.Kf2 Bf1 33.Bd6 Bd3 34.Bf8 Kg6 35.ba6 Bc4 36.Qb6 Qc6 37.Qc6 (37.ab7 Qb6 38.ba8Q Qb2 39.Kg1 Qa1 40.Kh2 Qb2 41.Kg1 Qc1 42.Kh2 Qd2 43.Kg1 Qe1 44.Kh2 Qf2 45.Kh1 Qf3 46.Kh2 Qe2 47.Kg1 Qf1 48.Kh2 f3 49.Qe8 Bf7 50.Qc6 Kh5 51.Qc2 f2 52.Qf2 Qf2 53.Kh1 Bg6 54.a5 Be4) 37...bc6 38.Rc1 Ba6 39.Rc6 Kf7 40.Bd6=) 30.Rh1 (30.Ba3 Rac8–/+) 30...Rac8 31.Nb2 (31.Ba3 Ba3 32.Ra3 Be6–+) 31...Kh5 (31...Rh8 32.Qb3–+) 32.Qd3 (32.Bd2 Be6–+) 32...Be6 33.Bd2 Bc4 34.Nc4 Qc4 35.Qc4 Rc4 36.Rhc1 (36.Rhd1 Rd8–+) 36...Rfc8 37.Kf2 d3 38.a5 (38.Rc4 Rc4 39.Kf1–+) 38...Rc1 39.Bc1 (39.Rc1 Rc1 40.Bc1 ba5 41.Ke1 Bb4 42.Kd1–+) 39...Rc2 40.Ke1 (40.Kf1 ba5 41.Rb1 Bc5–+) 40...Bb4 Black plans d2 41.Kf1 ba5 42.Rb1 (42.Bf4 gf4 43.b6 ab6 44.Rd1 Rd2 45.Rc1 Kh4 46.Rb1 Kg3 47.Ra1 Rh2 48.Kg1 Bc5 49.Kf1 Rh1) 42...d2 (42...d2 43.Bd2 Rd2–+) 0–1. Baer,Cy (1895) – Rheindt,Stefan (2015), RSS5E easy–35, 2007.

6.bc6 Nc6

7.Bb5 a6 8.Bc6 bc6–/+ 9.c3 (9.Nc3 Rb8 10.Rb1 Bb4–/+) 9...Nh6 (9...Ne7 10.Na3–/+) 10.h3 (10.Ba3 c5–/+) 10...Bd6 11.Qh5 (11.Ba3 Rb8–/+) 11...Bf7 12.Qd1 0–0 (12...Rb8 13.Ba3–/+) 13.Ba3 a5 (13...Ba3 14.Na3 Rb8 15.d3–/+) 14.Bd6 Qd6 15.Ne2 Bg6 16.0–0 (16.d3 Rab8–/+) 16...Bd3 17.Re1 Rab8 18.Ng3 (18.Na3!?–/+) 18...Rb2–+ 19.e4 (19.Na3 Rfb8–+) 19...Rfb8 20.Na3 de4 21.Qh5? (better is 21.Ne4 Be4 22.Re4 Rd2 23.Qh5–+) 21...R2b3 (21...Rd2?! 22.Ne4 Be4 23.Re4–+) 22.Nf5 (22.Ne4 Be4 23.Re4 Ra3 24.Ra3 Qa3–+) 22...Nf5 23.Qf5 Ra3 (23...g6 24.Qg4–+) 24.Ra3 Qa3 (24...g6!? 25.Qg4 Qa3 26.Qe6 Kg7 27.Qd7 Kh8 28.Qc6–+) 25.Qe6 Kh8 26.Re3 (26.Qc6 Qe7–+) 26...Qc1 (26...Qa4!? 27.Re1–+) 27.Kh2 Qd2 28.Rg3 (28.Qc6 Qf2 29.Qc5 Bf1–+) 28...Qf2 (28...Qc3 29.Qg4 Rg8 30.Qe4 Be4 31.Rc3–+) 29.Qd7 The mate threat is Qxg7 29...Rg8 30.Qc6 Qf4 (30...h5 31.Qd7–+) 31.Qb6 (31.Qd5 Rc8–+) 31...h5 32.h4 e3 (32...Kh7 33.Qa5 Qh4 34.Rh3 Qf4 35.g3 Qf2 36.Kh1–+) 33.Qe3 Qe3 34.Re3 e4 35.Kg3 (35.g4 hg4 36.Kg3 Rc8–+) 35...Re8 (35...Rc8 36.Kf4–+) 36.Re1 (36.Kf4 Rc8 37.g4 Rc3–+) 36...e3 (36...Rc8 37.Kf4–+) 37.Kf3 e2 38.Kf2 Re5 (38...Re5 39.g3 Rc5–+) 0–1. Niephaus,Friedel – Kozlovskaya,Valentina, 5 sen. WM–D Liebenzell, 1995.

7.Bb5 a6 8.Be2 Bd6 9.Nf3 Rc8 10.0–0 e4 +=.

7.Bb5 Bd6 8.Nf3 a6 9.Be2 Rc8 10.Ba3 d4 +=.

7.Bb5 Nge7 8.Nf3 Nf5 9.0–0 a6 10.Bc6 bc6 +=.

7.Nc3 Rb8 (7...Bb4 8.Qh5 g6 9.Qh4 d4 10.ed4 Nd4+=; 7...Bc5 8.Qh5 g6 9.Qf3 a6 10.Nge2 Rc8+=; 7...Nge7 8.Rb1 Nf5 9.Bd3 Bc5 10.Nge2 0–0+=; 7...Nh6 8.Nf3 e4 9.Ng1 Bd6 10.f3 Be5+=; 7...Bd6 8.Qh5 g6 9.Qf3 Nb4 10.Rc1 a6+=; 7...Rc8 8.Rb1 Bc5 9.Ba1 Rc7 10.Nf3 Nge7+=; 7...Be7 8.Nf3 Nh6 9.Be2 e4 10.Ng1 0–0+=; 7...Qd7 8.Nf3 Rc8 9.Bb5 a6 10.Be2 Nb4+=; 7...Qc7 8.Nf3 a6 9.Rb1 Bd6 10.e4 Nge7+=) 8.Rb1 Nh6 9.Bb5 a6 10.Be2 Bb4 +=.

7.Bd3 Qb6 (7...Rc8 8.Nc3 Nh6 9.Nge2 Nb4 10.Nc1 Bd6+=; 7...Nh6 8.Ne2 Bd6 9.0–0 0–0 10.Ba3 a6+=; 7...Nge7 8.Nc3 Ng6 9.Nge2 Nb4 10.Bg6 hg6+=; 7...Bd6 8.Qh5 Bf7 9.Qg4 g6 10.Nc3 f5+=; 7...e4 8.Be2 Qb6 9.Ba3 Ba3 10.Na3 a6+=) 8.Bc3 Qc7 9.Na3 a6 10.Qh5 Bf7 +=.

7.Be2 Bb4 8.Nf3 Nge7 9.Ba3 0–0 10.Bb4 Nb4 +=.

7.Be2 Qb6 8.Ba3 Ba3 9.Na3 Nge7 10.Rb1 Qc7 +=.

7.Be2 Bc5 8.Nf3 Nge7 9.0–0 0–0 10.Ba3 Ba3 +=.

7.Be2 Rc8 8.Nf3 Bd6 9.Nc3 Nge7 10.Nb5 Bb8 +=.

7.Be2 d4 8.ed4 Nd4 9.Nf3 Ne2 10.Qe2 Rc8 +=.

7.Be2 Bd6 8.Nc3 Nge7 9.Bh5 g6 10.Bg4 Bg4 +=.

7.Be2 Be7 8.Nf3 Rc8 9.0–0 Nh6 10.d4 Nf7 +=.

7.Be2 Nh6 8.Nf3 Bd6 9.0–0 0–0 10.Nc3 Rc8 +=.

7.Nf3 Bd6 (7...Rc8 8.Bb5 Bd6 9.0–0 Nge7 10.Ba3 0–0+=; 7...Nh6 8.Bb5 a6 9.Be2 Bd6 10.0–0 0–0+=; 7...Qb6 8.Ba3 e4 9.a5 Qc7 10.Nd4 Nd4+=; 7...Be7 8.Bb5 a6 9.Be2 Qb6 10.Bc3 Qc7+=; 7...Bc5 8.d4 Bb4 9.Bc3 Bc3 10.Nc3 Qa5+=; 7...Bb4 8.Ba3 Ba3 9.Na3 Nge7 10.Be2 0–0+=) 8.Bb5 Nge7 9.0–0 a6 10.Be2 Nf5 +=.

6.Be2 Bd6

7.d3 Qa5 (7...Nh6 8.e4 Qd7 9.ed5 Bd5 10.Nf3 0–0=; 7...Nd7 8.Nf3 Ne7 9.a5 a6 10.b6 0–0=; 7...Ne7 8.Nf3 0–0 9.0–0 Qc7 10.Nbd2 Nd7+=; 7...a6 8.Nf3 Ne7 9.0–0 0–0 10.c4 dc4+=; 7...Qd7 8.Nf3 Ne7 9.0–0 a6 10.c4 0–0+=) 8.Bc3 Qc7 9.Bh5 g6 10.Bf3 Ne7 +=.

7.d4 cd4 8.ed4 Ne7 9.de5 fe5 10.Nf3 Ng6 +=.

7.Nf3 Ne7 (7...Nh6 8.0–0 Qc7 9.Ne1 0–0 10.a5 Nd7+=; 7...Nd7 8.0–0 Ne7 9.d3 a6 10.c4 ab5+=; 7...Qc7 8.d3 Nd7 9.a5 Ne7 10.c4 0–0=) 8.0–0 Qc7 9.Ne1 0–0 10.Nc3 Nd7 +=.

7.Bh5 g6 (7...Kd7 8.d4 Kc8 9.dc5 Bc5 10.Bg4 f5=; 7...Kf8 8.Bg4 f5 9.Be2 Kf7 10.Nf3 Nd7=) 8.Be2 Ne7 9.Nf3 0–0 10.0–0 Qc7 +=.

5.a4 Bd6

6.c4 Ne7 7.cd5 Nd5 8.Bc4 (8.Nc3 Nc3 9.Bc3 Nd7+=) 8...c6 (8...Ne3 9.fe3 Bc4 10.Qg4–/+) 9.Qb3 (9.Qf3 Qe7 10.bc6 bc6–/+) 9...Qe7 (9...Nd7!? 10.Ba3 N7b6 11.bc6 bc6–/+) 10.Nf3 (10.Nc3 Nd7 11.Nd5 cd5 12.Bd5 Nc5+=) 10...0–0 (10...Nd7 11.0–0–/+) 11.0–0 (11.Nc3!? Qf7 12.Ne4=) 11...Nd7–/+ 12.e4 Nf4 (12...Nc5 13.Qa2 Nf4 14.Be6 Qe6 15.Qe6 Nce6 16.g3+=) 13.d4+= Bc4 14.Qc4 Qe6 (14...Kh8 15.Nc3=) 15.Qe6 Ne6 16.d5 (16.Rd1!? Rfd8 17.bc6 bc6 18.Nbd2 ed4 19.Nd4 Nd4 20.Bd4=) 16...cd5+= 17.ed5 Nf4 18.Nc3 (18.g3 Nd3 (worse is 18...Nd5 19.Rd1 N7b6 20.a5+/–) 19.Ba3 Ba3 20.Ra3 N7c5+=) 18...Nb6 (18...Bb4 19.Na2 Ba5 20.d6–/+) 19.g3? (better is 19.a5!? Nc4 20.Bc1=) 19...Nd3–/+ (worse is 19...Nfd5 20.Nd5 Nd5 21.Rfd1=) 20.Ba3 Ba3 21.Ra3 Rfd8 22.Rd1 Nb2 23.Rc1 (23.Rb1 N2c4 24.Ra2 Rac8–/+) 23...Rac8–+ 24.Rb1 N2c4 25.Rab3 Nd5 26.Nd5 Rd5 27.Rc1 Rdc5 (27...Nb6 28.Rc8 Nc8 29.Rc3–+) 28.Rbc3–/+ b6 29.Ne1 Na3! 30.Rc5 (30.Ra3 Rc1 Discovered attack (30...Rc1 Pinning; 30...Rc1 Deflection; 30...Rc1 Clearance)) 30...Rc5 (30...bc5?! 31.Kf1=) 31.Rd1 (31.Rc5 bc5 32.Kf1 Kf7–/+) 31...Rc7 32.Rd8 (32.f4 ef4 33.gf4 Kf8–+) 32...Kf7–+ 33.Nd3 Ke7 34.Rg8 Ke6 35.Nb4 Nc4 36.Nc6 Nb2 37.a5 ba5 (37...Kd5 38.ab6 ab6 39.Rh8–+) 38.Na5 Nc4?? (better is 38...Na4–+) 39.Nc4+= Rc4 40.Rg7 Rb4 41.Rh7 Rb5 42.Ra7 Kf5 43.Rg7 Ke4 (43...Rb1 44.Kg2 Rb2 45.g4 Kf4 46.h3+=) 44.Kg2 Kf5? (better is 44...Rb8!?+=) 45.h4+– Ke6 (45...Rb8 46.h5 Rh8 47.g4 Kf4 48.Kh3+–) 46.h5 (46.g4 Rb8+–) 46...e4? (46...f5 47.Kh3 Rb2 48.h6+/–) 47.h6 (47.g4!? Rb2 48.h6 Rb8+–) 47...Rh5 48.h7 f5 49.f3?? (better is 49.Rc7!?+–) 49...e3 (49...Kf6 50.Rd7=) 50.g4 (better is 50.Ra7+/–) 50...Kf6?? (50...fg4 51.Rg4 Rh7 52.Re4 Kf5 53.Re3 Rg7 54.Kf2=) 51.gh5 (better is 51.Rg5! Rh7 52.Rf5 Kg6 53.Re5+–) 51...Kg7= 52.f4 Kh7 53.Kf3 Kh6 54.Ke3 Kh5 55.Kd4 Kg6 56.Ke5 Kg7 57.Kf5 Kf7 58.Ke5 Ke7 59.f5 With the decisive threat Kf7 59...Kf7 60.f6 Kf8 61.Ke6 Ke8 ½–½. Nikolic,Jovane (1695) – Atanes Neto,Severiano (1935), Championship da Primeira Categoria do E, 2012.

6.Bd3 Nh6 7.Ra3? e4 8.Be2 0–0 9.h4? Nd7 10.h5 Ne5 11.Nh3 Bh3 12.gh3 f5 13.Rg1 Qh4 14.Nc3? c6 15.a5? Qh3 16.a6 Qh2 17.Rf1 Ba3 18.Ba3 cb5 19.Nd5? ba6?? 20.Qa1? Nhg4?? 21.Bb2? Rfd8 22.Ne7–/+ Kf7 23.Nf5 Kf6?? 24.Ng3 Ke6 25.Ne4 Nf6? 26.Ng5 Kf5 27.Be5 Qe5 28.e4! Kf4 29.Nh3?? Ke4–/+ 30.Bd3? Rd3 31.cd3 Kd5 32.Qe5 Ke5 33.Kd1? Rc8 34.Re1 Kd6 35.Ng5 Re8 36.Re8 Ne8 37.Nh7 Kd5 38.Ng5 Kd4?? 39.Kc2 a5 40.f4 (40.f4 Kd5 41.Ne4–+). xtom (1615) – waranex (1660), internet, 2011.

6.d4 Ne7 7.de5 fe5 8.Nf3 Nd7 9.Na3 (9.Ng5 Bg8=) 9...0–0–/+ 10.Ng5 Bf5 (10...Bf7 11.Nf7 Rf7 12.Be2+=) 11.g4= h6 12.gf5 hg5 13.Nc4 Rf5 (13...Bb4 14.c3 Bc5 15.Na5=) 14.Nd6= cd6 15.Bh3 Rf6 16.Bg2 (16.a5!?=) 16...Qa5+= 17.c3 Nb6 18.Ra2 Raf8 Attacking the backward pawn on f2 19.0–0 a6 20.Qb3 Kh8 (20...Ra8 21.ba6 Qa6 22.Rd1+=) 21.Ba1 (21.e4 Ra8 22.Bc1 g4=) 21...Nc4 22.Qb4 (22.e4 Qb6 23.Re2 Qc5–/+) 22...Qb4 (22...Qc7!?–/+) 23.cb4+= ab5 24.ab5 g4 25.Rc1 Rc8 (25...b6 26.e4 Rc8 27.ed5=) 26.Ra7= Rc7 27.Ra8 (27.b6!? Rd7 28.Bd5 Nd5 29.Rc4+=) 27...Kh7–/+ 28.Rd8 (28.Rb8 Kh6–/+) 28...b6 29.Bc3 (29.e4 Ng6 30.ed5 Ra7+=) 29...Ra7 30.Be1 Nb2 31.Bf1 Ra2 (31...Nf5 32.Bc3 Na4 33.Ba1–/+) 32.Rb8 Nf5 (32...Na4 33.Bd3 Nf5 34.Bc2+=) 33.Rb6= Nh4 34.Ra6 Nf3 35.Kg2 Na4 (worse is 35...Ne1 36.Re1 Na4 37.Be2+/–) 36.Kg3 Ne1 37.Re1 Raf2 38.Ra4 (38.Kg4 Nc3 (38...Rf1 39.Rf1 Rf1 40.Ra4=) 39.Bd3 e4–+) 38...Rf1 39.Rf1 Rf1 40.b6 Rf8 41.b7 Rb8 42.Ra7 Kg6 43.Kg4 Kf6 44.b5 (44.h4 d4 45.ed4 ed4+=) 44...Ke6 (44...e4 45.Kf4=) 45.h4 (45.Kg5 Kd7 46.Kg6 d4 47.ed4 ed4 48.Kg7 d3=) 45...Kd7 (45...e4 46.h5=) 46.Kf5+= Kc7 47.Ke6 (47.Kg6 e4 48.h5 d4 49.ed4 e3+=) 47...d4= 48.ed4 ed4 49.Ra4 ½–½. Fehr,Wolfgang – Gall,Zdenek, corr 3GMM–26, 1997.

6.Be2 c5 7.c4 d4 8.d3 Ne7 9.ed4 cd4 10.Nf3 0–0 11.0–0 Nd7 12.Nfd2 Nc5 13.Nb3 Nb3 14.Qb3 Qe8 (14...Qa5 15.Bf3+=) 15.Ba3 Ba3 16.Qa3 Ng6 17.Bf3 Rb8 18.Qc5 Nf4 19.Rd1 Qg6 20.Ra3 (20.Na3 Bf5 21.Bd5 Nd5 22.Qd5 Kh8–+) 20...b6 21.Qc6 Rfc8 22.Qd6 Rd8 23.Qc6 Bd7 24.Qc7? (24.Bd5 Kh8 25.Qc7 Nd5 26.cd5–+) 24...Bg4 25.Be4 f5 (25...f5 26.Qe5 fe4 27.Qf4 Bd1 28.de4 Be2–+) 0–1. Alimova,Ekaterina – Strogova,Alyona, RUS–ch U12 Girls, 2004.

6.Nf3 c6 7.c4 Ne7 (7...dc4 8.Qc2+=) 8.Ba3 dc4 9.Qc2 0–0 (9...Ba3 10.Na3 Bf5 11.Qc4+=) 10.Bc4= Bc4 11.Qc4 Kh8 12.0–0 c5 (12...a6!?=) 13.Nc3 b6 14.Ne4 Bc7 15.d4 f5 (15...ed4 16.ed4 cd4 17.Nd4+–) 16.Neg5+– Qd5 17.Qd5 (worse is 17.Ne5 Be5 18.Qd5 Nd5 19.de5 a6+/–) 17...Nd5 1–0. GuestVTRC – GuestLJPM, freechess.org, 2017.

6.Nf3 Nh6 7.Be2 A) 7...0–0 8.d3 (8.Nc3 c5 9.0–0 Qc7 10.Ne1 c4 11.d3+=; 8.0–0 c5 9.a5 Bc7 10.Ba3 e4 11.Ne1+=) 8...a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1+=; B) 7...Nf5 8.0–0 0–0 9.d4 e4 10.Nfd2 c6 11.Ba3=; C) 7...c5 8.0–0 Qc7 9.Ne1 0–0 10.a5 Nd7 11.c4+=.

6.h4 Ne7 7.h5 Nd7 8.h6 g6 9.f3 Nc5 10.g4 Qd7 11.Ra3 0–0–0 12.Bd3? e4 13.Be2? ef3–+ 14.Nf3 Bg4 15.Rg1 Bf3 16.Bf3 Ne4 17.d3? Qh3?? 18.de4 Qh4 19.Ke2 de4 20.Bg2?? Ba3 21.Na3 Nf5 22.Qe1 Qh2 23.Qf2 Rhf8 24.Be4?? Rd7 25.Qh2+– (25.Qh2 Nd6 26.Bg6 hg6 27.Rg6+–) 1–0. xtom (1605) – wolbar (1645), internet, 2011.

6.h4 Nh6 7.h5 0–0 8.Nf3 c5 9.Rg1 Bg4 10.Be2 Bh5 11.g4 Bg4 12.Ra3 c4 13.Nh4? Be2 14.Qe2 Ba3 15.Na3 Nd7 16.Qh5 Qe8 17.Qh6= Qf7 18.Nf5 g6 19.Nd6 Qe6 20.Nb7 Rab8 21.Na5 Rf7 22.Nc6 Re8 23.a5 Nc5 24.Nb4 Na4 25.Bc3 Nc3 26.dc3 d4 27.cd4 ed4 28.b6?? ab6 29.ab6? Qb6 30.Nd5 Qa5 31.Kf1 Qd5 32.Rg4 de3 33.c3 Qd3 34.Kg2–+ e2 35.Rd4 e1N 36.Kh2 Nf3 37.Kg2 Nd4 38.cd4 Qa3 39.f4 Re2 40.Kf1 Qf3 41.Kg1 Rg2 42.Kh1 Qf1 0–1. xtom (1605) – waranex (1665), internet, 2011.

6.Na3 Nd7

7.Nf3 b6 8.c4 Bg4 (8...Ne7!?=) 9.cd5 e4 10.Be2 (better is 10.Qc2 ef3 11.Qe4 Be5 12.Be5 Ne5 13.d4+=) 10...ef3–/+ 11.gf3 Bh3 12.f4 (12.Rg1 Kf7–/+) 12...Bg2 (12...Ne7!?–+) 13.Rg1–/+ Bd5 14.Rg7 Bf8?? (better is 14...Kf8 15.Rg1 Nc5+=) 15.Bh5+– Bf7 16.Bf7 (better is 16.Rf7 Qc8 17.Rh7 Kd8 18.Rh8 Ne7 19.Bf6 c5 20.Be7 Ke7 21.Rh7 Kd8+–) 16...Ke7 17.Bg8 (better is 17.Rg8 Rg8 18.Bg8+–) 17...Bg7 18.Bd5 Rb8 19.Qg4 Rg8?? (better is 19...Qf8+–) 20.Qe6 Kf8 21.Qg8 Ke7 22.Qg7 Kd6 23.e4 Nc5 24.Bf6 Qe8 25.Be5 Qe5 26.Qe5 Kd7 27.Bc6 Kd8 28.Qe8 1–0. chessleon – gupinath, internet, 2007.

7.Nf3 Ne7 8.Be2 +=.

7.Nf3 Nh6 8.c4 c6 9.Qb3 0–0 10.cd5 cd5 11.d4 Kh8 12.Nc2 e4 13.Nd2 f5 14.Be2 f4 15.ef4 Bf4 16.Nf1 Bg4 17.Bg4 Ng4 18.h3 Nf2 19.Kf2+= Qh4 20.Kg1 Bh6 21.Qg3?? Qf6 22.Nfe3 Bf4 23.Qe1 Rac8 24.Nd5 Qh6? 25.Nce3+– Nb6 26.Bc1?? Nd5–/+ 27.Nd5 Bc1 28.g3 Bb2 29.Ra2?? Bd4 30.Kh2 Qd6 31.Nf4 Rf4 32.gf4–/+ Qf4 33.Qg3 Qf5 34.Rg2?? Be5–+ 35.Rhg1 Bg3 36.Rg3 Qf3! 37.R1g2. poganinbezdom (1620) – sting73, internet, 2011.

6.Na3 Ne7

7.c4 0–0 A) 8.cd5 A1) 8...Bd5 9.Ne2 (9.Qc2 f5 10.Nc4 Nd7 11.a5 a6 12.ba6+=) 9...c6 10.Nc3 Nd7 11.bc6 bc6 12.Nd5+=; A2) 8...Nd5 9.Nc4 (9.Bc4+= Nd7 10.e4 Nf4 11.Be6 Ne6 12.Nf3+=) 9...Be7 10.Qb1 Kh8 11.Ba3 Ba3 12.Ra3+=; B) 8.Nf3 B1) 8...Nd7 9.Rc1 (9.Be2 c5 10.bc6 Nc6 11.cd5 Bd5 12.Nb5+=; 9.cd5 Nd5 10.e4 Nf4 11.g3 Ng6 12.Qc2+=; 9.a5 a6 10.ba6 ba6 11.cd5 Bd5 12.Bc4–/+) 9...Rc8 10.Be2 Qe8 11.0–0 Bg4 12.d4=; B2) 8...c5 9.cd5 (9.d3 Nd7 10.cd5 Bd5 11.Nc4 Bc7 12.Be2+=) 9...Bd5 10.d3 Nd7 11.Nc4 Bc7 12.Qc2+=; C) 8.Qb3 Nd7 9.d4 ed4 10.ed4 c5 11.bc6 bc6 12.Bd3–/+; D) 8.Rc1 Nd7 (8...c5 9.cd5 Nd5 10.Bc4 Nd7 11.e4 Nf4 12.Qf3=) 9.Nf3 Rc8 10.Be2 c5 11.cd5 Nd5 12.Nc4+=.

7.c4 c6 8.Rc1+= Nd7 (8...Bb4 9.Nc2 (9.cd5 Bd5 10.Nf3 a6 11.bc6 Nbc6 12.Nb1+=) 9...Ba5 10.Nf3 c5 11.cd5 Bd5 12.Na1+=; 8...c5 9.cd5 Nd5 10.Bc4 Qe7 11.Qf3 Qf7 12.e4=; 8...0–0 9.c5 Bc7 10.Nf3 Nf5 11.Be2 e4 12.Nd4=) 9.Nf3 (9.bc6 Nc6 10.Nb5 Be7 11.cd5 Bd5 12.Nc3+=) 9...0–0 10.Be2 Rc8 (10...e4 11.Nd4 Bf7 12.cd5+=) 11.0–0 Ng6 (11...Qa5 12.cd5+=) 12.d4 (12.bc6=) 12...e4 13.Nd2 f5 14.f4 (14.bc6 Rc6 15.c5 Bb8=) 14...ef3 (14...Bb4 15.bc6 Rc6 16.c5=) 15.Nf3 Nh4 16.c5 Bb8 17.bc6 bc6 (17...Nf3 18.Rf3 bc6 19.Qe1=) 18.Ba6 Qc7 19.Bc8 Nf3 20.Rf3 Qh2 21.Kf2 Qh4 22.Ke2 (22.Kg1 Rc8 23.Rh3 Qe4=) 22...Rc8 23.Qh1 Qg5 24.Rh3 (better is 24.Rcf1!?=) 24...Nf6–/+ 25.Bc3 (25.Rf3!?–/+) 25...f4–+ 26.Bd2 Bg4 27.Rf3 Re8 (27...Bf3?! 28.gf3 Nh5 29.Qg1 Ng3 30.Kd1 fe3 31.Qe3 Qe3 32.Be3–+) 28.Qg1? (28.Nc2 Ne4 29.Qg1 Nd2 30.Kd2 Bf3 31.gf3 fe3 32.Ke2 Qh5–+) 28...Ne4 (better is 28...fe3 29.Bc3 Nh5–+) 29.Nc2 Nd2 30.Kd2 fe3 (better is 30...Bf3 31.gf3 fe3 32.Ke2 Qh4–+) 31.Ne3?? (31.Re3!? Bf4 32.Rf1–+) 31...Bf4 (better is 31...Bf3 32.gf3 Qf4–+) 32.Rf4? (32.Rcf1 Bf3 33.Rf3–+) 32...Qf4 (32...Qf4 33.Kd3 Qe4 34.Kc3 Qe3 35.Qe3 Re3 36.Kd2 Re2 37.Kc3 Rg2–+) 0–1. Belova,E – Muslimova,Aida E, Soviet Union, 1972.

7.c4 c6 8.cd5 A) 8...Bd5 9.Qc2 (9.Nc4 Bc5 10.Qc2 Nd7 11.d4 ed4 12.Bd4+=; 9.Ne2 0–0 10.Nc3 Bf7 11.Ne4 Bc7 12.Qc2+=; 9.Qh5 g6 10.Qe2 Nd7 11.Nc4 Bc5 12.Nf3+=; 9.Qg4 0–0 10.Nc4 Bc5 11.Rc1 Nd7 12.bc6+=) 9...0–0 10.e4 Bf7 11.Nf3 Nd7 12.Nc4+=; B) 8...cd5 9.Nf3 (9.Be2 0–0 10.Nf3 Nd7 11.0–0 Rc8 12.d4–/+) 9...Nf5 10.Be2 0–0 11.0–0 Nd7 12.d4+=.

7.c4 c6 8.Qh5 A) 8...Bf7 9.Qg4 (9.Qf3 0–0 10.cd5 cd5 11.Rc1 Qa5 12.Qg4–/+) 9...0–0 10.cd5 Bd5 11.Nc4 Bc5 12.Rc1+=; B) 8...Ng6 9.Rc1 (9.cd5 cd5 10.Nf3 Bf7 11.Nh4 0–0 12.Qg4+=; 9.bc6 Nc6 10.Rc1 Bb4 11.Rc2 d4 12.Bd3–/+) 9...Qe7 10.Nb1 Qd7 11.Bd3 e4 12.cd5+=; C) 8...g6 9.Qf3 0–0 10.bc6 Nbc6 11.cd5 Nd5 12.Bc4+=.

7.Nf3 c5 8.c4 d4 9.ed4 cd4 10.d3 Nd7 11.Nd2 Nc5 12.Be2 0–0 13.0–0 Ng6 14.g3 Qd7 15.Ne4 Bh3 16.Re1 f5?? 17.Nd6 Qd6 18.Bf3 Rae8 19.Bd5 Kh8 20.Nb1 e4 21.Ba3?? f4?? 22.Bc5+= Qc5 23.Bb7 e3–/+ 24.Qf3?? ef2 25.Qf2 fg3 26.hg3 Rf2 27.Kf2 Rf8 28.Kg1 Qg5 29.Kh2 Bf5 30.Re5 Qh6 31.Kg2 Bd3 32.Re1–+ Bc4 33.Na3 Bb3 34.a5 Qd2 35.Kh1 h5 36.Nb1 Qb2 37.Na3–+ Rf2 38.Be4 Rh2 39.Kg1 Qf2 0–1. poganinbezdom (1630) – talty (1685), internet, 2011.

6.Be2 Ne7

7.Nf3 0–0 8.d3 c6 9.c4 Nd7 10.Nc3 a6 11.0–0 Rc8 12.ba6 ba6 13.cd5 cd5 14.d4 e4 15.Nd2 Qa5 16.Ndb1 Bb4 17.Qb3 Nb6 18.Rc1 Nc4 19.Ba3?? Ba3 20.Na3= Na3 21.Ra3 Rc7 22.Na2?? Rc1–+ 23.Nc1 Qe1 24.Bf1 Qc1 25.Qb7 Nc6 26.Rb3 Na5 27.Qa6 Nb3 28.Qe6 Kh8 29.Qd5 Nd2 30.Qb5 Nf1 31.Qf1 Qf1 32.Kf1 Ra8 33.f3 ef3 34.gf3 Ra4 35.Kf2 Kg8 36.Kg3 Kf7 37.Kf4 Ke6 38.h4 g6 39.Ke4 f5 40.Kf4 h6 41.Kg3 Kd5 42.Kf4 Rb4 43.Kg3 g5 44.hg5 hg5 45.Kh3 Rb3 46.e4 fe4 47.Kg4 Rf3 48.Kg5 Kd4 49.Kg4 Ke5 (49...Ke5 50.Kg5 e3 51.Kg4 Rf4 52.Kh3 e2 53.Kg3 e1Q 54.Kh3 Qe3 55.Kg2 Rf2 56.Kh1 Qe1) 0–1. j1a9n55 – roterman, internet, 2011.

7.Bh5 g6

8.Be2 c5 9.h4 Nd7 10.h5 Qa5 11.Bc3 (11.hg6 Ng6 12.Bc3 Qd8 13.Nf3 Qe7 14.a5 0–0–0 15.d3+=) 11...Qc7 12.hg6 (12.a5 d4 13.Bb2 0–0–0 14.Na3 de3 15.fe3+=) 12...Ng6 13.a5+= d4 14.Bb2 0–0–0 15.b6 =.

8.Be2 c5 9.h4 Nd7 10.h5 Kf7 11.Bg4 (11.a5 a6 (11...g5 12.a6 ba6 13.Ra6 Nb8 14.Ra4 Qb6 15.c4=) 12.Nc3 (12.b6 g5 13.Nc3 f5 14.g4 Nf6 15.gf5+=; 12.ba6 ba6 13.d4 g5 14.de5 Ne5 15.Bc3+=) 12...g5 13.b6 Rg8 14.Nf3 g4 15.Nh4+=) 11...f5 12.Bh3 (12.Be2 g5= 13.d4 h6 14.de5 Be5 15.Be5=) 12...Nf6 (12...g5!? 13.g4 Rf8+= 14.gf5 Nf5 15.d3+=) 13.Nf3= Kg7 (better is 13...Nd7!?= 14.Ng5 Kf6 15.f4=) 14.Ne5+/– Be5 (14...a6 15.g4 Qc7 16.Ng6 hg6 17.g5+/–) 15.Be5 d4 (15...g5 16.g4 d4 17.gf5+–) 16.e4! Qd7 (16...fe4 17.f3) 17.Ra3 (17.Qf3!? Raf8 18.Qf4+/–) 17...fe4+= 18.f4 (18.Qe2 Qd5 19.Bf6 Kf6 20.Be6 Qe6+/–) 18...Bh3 (18...gh5? 19.Qh5 Ng6 20.Bf6 Kf6 21.Qg5 Kg7 22.f5+–) 19.Rah3 Qe6 20.hg6 hg6 (20...Ng6 21.Qh5 Ne5 22.Qe5 Qe5 23.fe5=) 21.Rh7. Englmeier,M – Hemberger,R, Schwetzingen ST, 1983.

8.Be2 c5 9.h4 Nd7 10.h5 g5 11.a5 A) 11...0–0 12.Nc3 (12.Nh3 a6 13.Nc3 h6 14.b6 f5 15.Kf1+=; 12.a6 ba6 13.Ra6 Nb8 14.Ra4 a6 15.d4+=) 12...c4 13.Nh3 Nc5 14.d4 cd3 15.cd3+=; B) 11...Rc8 12.Nf3 (12.Nc3 h6 13.a6 b6 14.Nf3 f5 15.Kf1+=; 12.Kf1 c4 13.Nc3 Nc5 14.d4 cd3 15.cd3+=; 12.a6 b6 13.Nc3 f5 14.Kf1 0–0 15.d4+=) 12...g4 13.Nh4 Rg8 14.0–0 Rg5 15.a6+=; C) 11...a6 12.b6 Nc6 13.Nc3 Qe7 14.e4 de4 15.Ne4–/+.

8.Bg4 Bg4

9.Qg4 Qd7 10.Qf3 0–0 11.e4 c6 12.Ba3 A) 12...a6 13.b6 (13.bc6 Nbc6 14.Ne2 Ba3 15.Na3 f5 16.ed5 Nd5+=; 13.ed5 cd5 14.Bd6 Qd6 15.Nc3 ab5 16.Nb5 Qc6+=) 13...c5 14.ed5 Qa4 15.Nc3 Qc2 16.Ne4 Nf5+=; B) 12...Ba3 13.Na3 f5 14.ed5 Nd5 15.Ne2 e4 16.Qb3 f4=; C) 12...de4 13.Qe4 Nd5 (13...a6 14.bc6 Nbc6 15.Nf3 Ba3 16.Ra3 b5+=) 14.Nf3 f5 15.Qh4 Ba3 16.Na3 e4+=; D) 12...f5 13.Bd6 (13.ed5 Nd5 14.Bd6 Qd6 15.Ne2 a6 16.bc6 Nc6+=) 13...Qd6 14.ed5 Nd5 15.Ne2 a6 16.bc6 Nc6+=.

9.Qg4 Qd7 10.Qf3 0–0 11.e4 c6 12.Nc3 A) 12...cb5 13.Nb5 Bc5 (13...Bb4 14.Nc3 d4 15.Nce2 Nbc6 16.Qd3 Rad8+=; 13...Nbc6 14.ed5 Nb4 15.Qb3 Rfc8 16.c4 e4+=) 14.d4 ed4 15.ed5 Nd5 16.Bd4 Bd4+=; B) 12...d4 B1) 13.Nce2 Kg7 (13...cb5 14.Qb3 Kg7 15.ab5 Rc8 16.Qd3 Qc7=; 13...a6 14.b6 a5 15.Qb3 Kg7 16.f4 Na6+=) 14.c4 a6 15.b6 a5 16.Qb3 Na6–/+; B2) 13.bc6 Qc6 (13...bc6 14.Nd1 f5 15.Ba3 Ba3 16.Ra3 Na6+=; 13...Nbc6+= 14.Nb5 Bb4 15.c3 dc3 16.Bc3 Bc5+=) 14.Nb5 Qc2 15.Bd4 Bb4 16.Bc3 Nbc6+=.

9.Qg4 Qd7 10.Qf3 0–0 11.e4 c6 12.ed5 cb5 A) 13.Ne2 ba4 (13...Na6 14.d4 Nc7 15.0–0 Ned5 16.Nbc3 Nc3–/+) 14.c4 b5 15.cb5 Qb5 16.Ba3 Ba3–/+; B) 13.Qb3 Qg4 (13...b4 14.Ne2 Rc8 15.c4 bc3 16.Nbc3 f5+=; 13...ba4 14.Ra4 Na6 15.d4 Qg4 16.de5 Qg2–/+) 14.Qh3 Qe4 15.Ne2 Qc2 16.Ba3 Ba3–/+.

9.Qg4 Qd7 10.Qf3 0–0 11.e4 c6 12.ed5 cd5 13.Ne2 (13.Nc3 e4 14.Qh3 Re8 15.Qd7 Nd7 16.Nge2 Be5+=) 13...Qe6 (13...a6 14.Nbc3 Qe6 (14...Bc5 15.0–0 e4 16.Qg3 Nf5+=) 15.Ba3+= Ba3 16.Ra3 ab5+=; 13...e4 14.Qb3 Qg4 15.Ng3 Nd7 16.Nc3 Nc5+=) 14.0–0= Nd7 (14...Rc8 15.Rc1 a6 16.Nec3 e4+=) 15.Re1 (15.a5 a6 16.b6 Rac8+=) 15...Rac8 (15...Qf5 16.Qf5 Nf5+=) 16.Nbc3 (16.Ba3 Nc5+=) 16...Qf7 (16...Qf5 17.Qf5 Nf5 18.Nd5 Rc2 19.Bc3+=) 17.Rec1 (17.a5 Nf5 18.Qd3 e4=) 17...Nb6 18.d3 Rc7 19.a5 Nd7 20.b6 ab6 21.Nb5 Rc6 22.Na7 (22.Nd6 Rd6 23.Ba3=) 22...e4 (22...ba5 23.Nc6 Nc6 24.Ba3 Ba3 25.Ra3+=) 23.de4 (23.Qh3 f5 24.Nc6 Nc6 25.ab6 Nb6 26.Rcb1+/–) 23...Ne5? (23...Rc4 24.ed5 Ne5 25.Be5 Be5 26.Rab1 Qd5 27.Rb6 Qf3 28.gf3=) 24.Qb3 (better is 24.Be5 de4 25.Qf6 Qf6 26.Bf6 Rf6 27.Nc6 Nc6 28.ab6+–) 24...Rc4+= 25.Qe3?? (better is 25.ed5!? Rb4 26.Qa2 ba5 27.Bc3=) 25...Bc5?? (better is 25...Re4 26.Qb6 Nc4 (26...Re2?! 27.Qd6 Nf5 28.Qb4+=) 27.Qb7 Re2–+) 26.Bd4–/+ Ng4 27.Qf4 (27.Qd2 de4 28.ab6 Qd5=) 27...Bd4–/+ (27...Rd4?! 28.Nd4 (28.Qg4? Re4 29.Qf3 ba5–+) 28...Bd4 29.Qg4 Ba1 30.Ra1 ba5 31.Ra5+=) 28.Nd4 Rd4 29.Qg4 Re4 30.Qd7 ba5 31.Ra5 (31.Qb7 Re8–/+) 31...Re8 (31...Nc6 32.Qf7 Kf7 33.Nc6 bc6 34.f3–/+) 32.Qb7 (32.Rb5 Nf5 33.Qf7 Kf7 34.Rb7 R8e7 35.Re7 Ke7+=) 32...Qe6 (32...Nc6 33.Qf7 Kf7 34.Raa1–+) 33.Kf1 (better is 33.Rf1!?+=) 33...Nc6!–+ 34.Raa1 (34.Nc6 Re1; 34.Qc6 Re1) 34...Rb4?? (34...Nd4 35.Nb5 Nc2–+) 35.Qc6+– Qe2 36.Kg1 Rd4 (36...Qe5 37.c3 Re4 38.h3+–) 37.h3 (37.Nb5 Rd2 38.Rf1 Re6+–) 37...Rd2 38.Qc5 (38.Qf6 Rf8 39.Qg5 Rf2–+) 38...d4 39.Qd5 (39.Rf1 Qe7 40.Qa5 Qe2+–) 39...Re6? (39...Kg7 40.Kh2+–) 40.Qf3 (better is 40.Re1 Qf2 41.Kh1+–) 40...Qf3 41.gf3 ½–½. Kleist,Werner (1715) – Graffenberger,Wilhelm, 02 sen. HSen EM06 (Bad Sooden op), 2006.

6.Nf3 a6

7.Ba3 A) 7...c5 8.d4 (8.bc6 Nc6 9.Bd6 Qd6 10.Nc3 Nge7 11.Rb1+=) 8...Nd7 9.Nbd2 Qa5 10.dc5 Bc5 11.Be2+=; B) 7...Ne7 8.Be2 0–0 9.0–0 Ba3 10.Na3 ab5 11.ab5+=; C) 7...Nh6 8.Be2 ab5 9.ab5 Nf5 10.d4 0–0 11.0–0+=; D) 7...Ba3 8.Ra3 Ne7 9.d4 ab5 10.ab5 Ra3 11.Na3+=; E) 7...ab5 8.ab5 (8.Bd6 Qd6 9.Bb5 c6 10.Be2 Ne7 11.Nc3+=; 8.Bb5 c6 9.Bd6 Qd6 10.Be2 Ne7 11.Nc3+=) 8...Ne7 9.Be2 0–0 10.0–0 c5 11.d4+=.

7.Na3 A) 7...c5 8.d4 Nd7 9.de5 Ne5 10.Be2 Qa5 11.Qd2+=; B) 7...Ne7 8.Be2 c5 9.0–0 0–0 10.d3 d4 11.Nc4+=; C) 7...Nd7 8.d4 (8.Be2 Ne7 9.0–0 0–0 10.d4 e4 11.Nd2+=) 8...Ne7 9.de5 Ne5 10.Be2 Nf3 11.Bf3+=.

7.Nc3 A) 7...ab5 8.Nb5 Nh6 9.Nd6 Qd6 10.Ba3 Qd7 11.Qb1=; B) 7...c5 8.e4 (8.ba6 ba6 9.Rb1 Ne7 10.Be2 0–0 11.0–0+=) 8...d4 9.Nb1 Ne7 10.Na3 ab5 11.ab5=; C) 7...Nh6 8.Bd3 (8.Be2 0–0 9.0–0 c5 10.bc6 Nc6 11.Ba3+=) 8...0–0 9.0–0 ab5 10.ab5 Ra1 11.Qa1+=; D) 7...Qd7 8.a5 (8.Ba3 Ba3 9.Ra3 Ne7 10.ba6 Na6 11.Be2+=; 8.Be2 Ne7 9.0–0 0–0 10.Re1 c5 11.bc6+=; 8.e4 d4 9.Nd5 Ne7 10.Bc4 Nd5 11.ed5+=) 8...Ne7 9.ba6 Na6 10.Nb5 Nc8 11.Nd6+=; E) 7...Nd7 8.Ba3 (8.ba6 ba6 9.Rb1 Ne7 10.Be2 c5 11.0–0+=; 8.Be2 Ne7 9.0–0 0–0 10.ba6 ba6 11.Rb1+=) 8...Ba3 9.Ra3 ab5 10.Bb5 Ne7 11.0–0+=; F) 7...Ne7 8.Be2 (8.Bd3 c5 9.ba6 ba6 10.Be2 Qc7 11.d3+=) 8...0–0 9.0–0 c5 10.bc6 Nbc6 11.Ba3+=.

7.Bd3 A) 7...c5 8.e4 Ne7 9.ed5 Nd5 10.Be4 Qd7 11.Nc3+=; B) 7...Qd7 8.Be2 (8.ba6 e4 9.ab7 Ra7 10.Bb5 c6 11.Nd4–/+) 8...Ne7 9.0–0 ab5 10.ab5 Ra1 11.Ba1+=; C) 7...ab5 8.ab5 (8.Bb5 c6 9.Be2 Ne7 10.Nc3 0–0 11.0–0+=) 8...Ra1 9.Ba1 Ne7 10.Nc3 0–0 11.Be2+=; D) 7...Nh6 8.0–0 e4 9.Nd4 Bh2 10.Kh2 Qd6 11.Kg1+=; E) 7...Qe7 8.e4 c6 9.ed5 cd5 10.Be2 Nh6 11.0–0+=; F) 7...Bg4 8.Be2 (8.e4; 8.h3) 8...Ne7 9.0–0 ab5 10.ab5 Ra1 11.Ba1+=; G) 7...Ne7 8.0–0 (8.Nc3 c5 9.ba6 ba6 10.Be2 Nd7 11.Rb1+=) 8...c5 9.e4 c4 10.ed5 Bd5 11.Be2+=.

7.d4 e4 8.Nfd2 ab5 9.ab5 Ra1 10.Ba1 f5 11.c4 =.

7.Qe2 A) 7...Nd7 8.d4 (8.e4 de4 9.Qe4 Ne7 10.ba6 ba6 11.Ba3+=; 8.a5 Ne7 9.Ba3 Ba3 10.Ra3 ab5 11.Qb5+=; 8.Qd1 Ne7 9.Ba3 Ba3 10.Na3 0–0 11.Be2+=; 8.Ba3 Ba3 9.Na3 Ne7 10.Qd1 0–0 11.Be2+=; 8.Nc3 Ne7 9.ba6 Ra6 10.Qd1 Ra8 11.Nb5+=; 8.ba6 Ra6 9.Qd1 Ra5 10.Bc3 Ra7 11.a5+=) 8...e4 9.Nfd2 f5 10.c4 dc4 11.ba6+=; B) 7...Ne7 8.d4 (8.Ba3 0–0 9.Bd6 Qd6 10.Nc3 ab5 11.Qb5–/+; 8.Nc3 0–0 9.Ba3 Ba3 10.Ra3 b6 11.Qd1–/+; 8.a5 Bd7 9.Nc3 Bb4 10.ba6 Ra6 11.Nh4–/+; 8.e4 0–0 9.ed5 Nd5 10.Nd4 Bf7 11.Nf5+=) 8...e4 9.Nfd2 0–0 10.c4 dc4 11.Ne4+=.

7.Be2 A) 7...Ne7 8.0–0 (8.Nc3 0–0 9.0–0 c5 10.bc6 Nbc6 11.Ba3+=; 8.Ba3 ab5 9.ab5 0–0 10.0–0 Nd7 11.d4+=) 8...ab5 9.ab5 Ra1 10.Ba1 0–0 11.c4+=; B) 7...Nh6 8.Nc3 (8.0–0 0–0 9.Nc3 c5 10.bc6 Nc6 11.Ba3+=) 8...0–0 9.0–0 c5 10.d3 d4 11.Ne4+=; C) 7...Nd7 8.Ba3 (8.Nc3 Ne7 9.0–0 0–0 10.ba6 ba6 11.Rb1+=; 8.ba6 ba6 9.Nc3 c5 10.d4 e4 11.Nd2+=; 8.d4) 8...Qe7 9.ba6 ba6 10.d4 Rb8 11.Nfd2=; D) 7...Qd7 8.0–0 (8.Nc3 Ne7 9.0–0 0–0 10.Re1 c5 11.d3+=) 8...Ne7 9.Nc3 ab5 10.ab5 Ra1 11.Qa1=; E) 7...c5 8.0–0 Qc7 9.Ne1 ab5 10.Bb5 Nd7 11.Qh5=; F) 7...ab5 8.ab5 Ra1 9.Ba1 Ne7 10.0–0 0–0 11.Bb2+=.

6.Nf3 c5

7.a5 Ne7 8.d3 (8.Be2 Bc7 9.a6 ba6 10.ba6 e4 11.Ng1–/+) 8...0–0 9.Be2 a6 10.b6 Qe8 11.0–0 +=.

7.c4 d4 8.Bd3= Ne7 9.Qc2 g6 (9...f5 10.Ng5 Bd7 11.ed4 ed4 12.0–0=) 10.0–0 Nd7 11.Re1 Kf7 12.ed4 (12.Be4 Qb8+=) 12...cd4= 13.Ba3 Ba3 14.Na3 Nc5 15.Re2 (15.Be4 Kg7=) 15...Rc8 (15...Bg4 16.Ree1–/+) 16.Rae1 Qd6 17.h3 Rhe8 18.Re5?? (better is 18.Ra1+=) 18...fe5–+ 19.Ne5 Kg7 20.Nf3 Bf5 (20...Nd3?! 21.Qd3 Kg8 22.Qd4 Qd4 23.Nd4 Bc4 24.f3–+) 21.Bf5 Nf5 (worse is 21...gf5 22.b6 Qb6 23.Nd4–+) 0–1. GuestXCSC – GuestVMXR, freechess.org, 2017.

7.c4 e4 8.cd5 Bd5!? 9.Nc3 Ne7 (worse is 9...ef3 10.Nd5 fg2 11.Bg2+/–) 10.Nd5 Nd5 += 11.Nh4 +/–.

7.c4 e4 8.cd5 Bg4 9.Qc2+= Qe7 (9...Bf3 10.gf3 ef3 11.Qe4+/–) 10.Ng1 Nd7 (10...f5 11.d3+/–) 11.Nc3 f5 12.Nge2 (12.d3 Ngf6+=) 12...Ngf6 13.Ng3 Bg3 14.hg3 Qd6 (better is 14...Rd8!?+=) 15.d3+/– ed3 16.Bd3 Nd5 (16...g6 17.a5+–) 17.Bf5 Bf5 18.Qf5 Nb4 (better is 18...Ne7 19.Qh5 Qg6+–) 19.Rd1 Qe7 20.Rh4 (better is 20.Ne4 0–0–0 21.Nd6 Kb8+–) 20...Nf6? (better is 20...0–0–0 21.Ne4 Kb8+–) 21.Ne4 Rd8 (21...Nfd5 22.Nd6! Qd6 23.Re4 Kd8 24.Rb4 cb4 25.Rd5 Qd5 26.Qd5 Kc8 27.Qe6 Kc7 28.Bg7 Raf8+–) 22.Nf6 gf6 23.Rd8 Qd8 24.Re4 (24.Bf6 Nd3 25.Kf1 Qe7 26.Be7 Ke7 27.Re4 Ne5 28.Re5 Kd8 29.Qf6 Kc8 30.Qd6 b6 31.Re7 Re8 32.Qc7) 24...Kf7 25.Qe6 Kg7 26.Rg4 Kh6 27.Rh4 (27.Bf6 Nc2 28.Ke2 Qd3 29.Kd3 Nb4 30.Kc4 Rf8 31.Rg5 Rf6 32.Qf6) 27...Kg6 (27...Kg7 28.Bf6! Qf6 29.Rg4 Qg6 30.Qe5 Kg8 31.Rg6 hg6 32.Qb8 Kg7 33.Qb7 Kf6 34.Qa7 Rh1 35.Ke2 Rh5+–) 28.Rg4 (better is 28.Bf6 Qd5 29.Qd5 Nd5 30.Bh8+–) 28...Kh6 29.Qf6 (29.Bf6 Qd1 30.Kd1 Rf8 31.Rg5 Rf6 32.Qf6) 29...Qf6+– 30.Bf6 Rc8 (30...Nd3 31.Ke2 Rd8 32.Bd8 Ne5+–) 31.Rc4 (better is 31.f4 Rg8 32.Rg8 Nd5 33.g4 Nf6 34.g5 Kh5 35.gf6 a6 36.f7 Kh4 37.f8Q Kh5 38.Qc5 Kh6 39.Qg5) 31...Kg6 32.Bc3 Nd5 33.Bb2 Nb6 34.Re4 (34.Rg4!? Kf5 35.Rf4 Ke6+–) 34...c4 35.a5 Na4 (35...Nd5 36.a6 b6 37.Bd4+–) 36.Bc1 (36.Bd4 c3 37.Kd1 c2 38.Kc1 Nc5 39.Rg4 Kf5 40.Rf4 Kg6 41.Rf6 Kg5 42.f4 Kg4 43.Bc5 Rc5+–) 36...Nc3 (36...Nc5 37.Rg4 Kf7 38.Bd2+–) 37.Re7 (37.Rg4 Kf7 38.Bb2 Nb5 39.Rg7 Ke6 40.Rb7 Rc5 41.Rh7 c3+–) 37...Na2 (37...Rd8 38.Bd2 Nb5 39.Rb7+–) 38.Kd2 (better is 38.Ba3!?+–) 38...c3 39.Kc2 Nb4 40.Kb3 (40.Kd1!? c2 41.Ke2+/–) 40...Nd3+= 41.Kc2 Nb4 42.Kd1 c2 43.Kd2 (better is 43.Ke2 Na2 44.Kd2 Rd8 45.Kc2 Rc8 46.Kb1 Nc1 47.Rb7+–) 43...Na2?? (better is 43...Rd8 44.Ke2 Na2+=) 44.Rb7+– Rd8 45.Kc2 Rc8 46.Kb2 Nc1 47.Ra7 Nd3 48.Kb3 Nf2 49.Ra6 Kf5 50.Rc6 Rb8 51.b6 Ne4 52.Kb4 Ke5 53.b7 Rb7= 54.Rb6 Ra7 55.a6 Kd5 (worse is 55...Ng3 56.Ka5 Ne4 57.Rb5 Ke6 58.Kb6+=) ½–½. Smeets,C – Boonen,P, LiSB ch B, 1980.

7.c4 e4 8.Ng5 Bf5 9.cd5+= Qd7 10.Ne6 Be6 11.de6 +=.

7.c4 Ne7 8.cd5 (8.d3 Bc7 9.Nbd2 Ba5 10.Qc2 0–0 11.cd5=) 8...Nd5 9.Nc3+= Qe7 10.Ne4 0–0 11.Bc4 =.

7.bc6 Nc6 8.Ba3 (8.Be2 Nge7 9.0–0 0–0 10.Nc3 Rc8 11.Ba3+=; 8.Bb5 Nge7 9.0–0 0–0 10.Nc3 a6 11.Be2+=; 8.Nc3 Nge7 9.Nb5 Bc5 10.d4 Bb4 11.c3+=; 8.Na3 a6 9.Be2 Nge7 10.0–0 Qc7 11.h3–/+; 8.d4 Nge7 9.de5 fe5 10.Nbd2 0–0 11.c4+=) 8...Nge7 9.Bd6 Qd6 10.Nc3 0–0 11.Rb1 +=.

7.d3 Ne7 8.c4 d4 (8...0–0 9.Be2–/+) 9.e4 (9.ed4 ed4 10.Be2 Qa5 11.Nbd2 0–0=) 9...0–0 10.Nbd2 a6 11.Be2 Nd7 12.h3 (12.0–0 f5+=) 12...ab5 (12...f5 13.Ng5 Bf7 14.Nf7 Rf7 15.ef5 Nf5 16.Bf3=) 13.ab5 Ra1 14.Qa1 Qa8 (14...f5 15.Ng5 Bf7 16.Nf7 Rf7 17.ef5 Nf5 18.Ne4=) 15.0–0 Nb6 16.Qa8 (16.Re1 f5=) 16...Ra8+= 17.Ra1 Ra1 18.Ba1 g5 (18...Kf7 19.Bb2+=) 19.Nh2 (19.Bb2 h5=) 19...Ng6 (19...f5 20.Nhf3 h6 21.ef5 Bf5 22.Bb2+=) 20.Bd1 (20.Bg4 Kf7 21.g3 h5 22.Bh5 Bh3=) 20...Nf4+= 21.Bc2 (21.Bg4 Bf7 22.Nhf3 Nd3–+) 21...h5 (21...f5 22.Nhf3 h6 23.Bb2+=) 22.Nhf1 (22.Nhf3 Kf7+=) 22...Kg7 (22...f5 23.Ng3 fe4 24.Nde4+=) 23.Ng3 Kg6 (23...h4 24.Nf5 Bf5 25.ef5+=) 24.Kf1 (24.Bb2 h4 25.Ngf1 f5–/+) 24...Bc7 (24...h4 25.Ne2+=) 25.Ne2+= Nd7 (25...f5 26.Ng3+=) 26.Nb3 (26.Nf4 gf4 27.Ke2 Ba5=) 26...h4 (26...Ne2 27.Ke2 f5 28.ef5 Kf5 29.Bb2+=) 27.f3 (27.Nf4 gf4 28.Ke2 f5 29.ef5 Bf5+=) 27...f5 28.Bb2 fe4 29.fe4 g4 (29...Kf6 30.Nf4 gf4 31.Ke2+=) 30.hg4 (30.Nf4 ef4 31.Ba3 gh3 32.gh3 Bh3 33.Kf2 b6–+) 30...Bg4 (30...Ne2 31.Ke2 Bg4 32.Kd2–/+) 31.Ng1 (31.Nf4!? ef4 32.Ba3+=) 31...Bd8 32.Ba3 b6 (32...Be7 33.b6–/+) 33.Bc1 Nf6 (33...Bg5 34.Nf3–/+) 34.Bf4 ef4 35.Nh3 (35.Nf3 Bf3 36.gf3 Be7+=) 35...Nh5 (35...Bc7 36.Nf2–/+) 36.Nd2 (36.Nf2 Ng3 37.Ke1 Be6+=) 36...Bg5 (36...Ng3 37.Kf2 Bc7 38.Nf3+=) 37.Nf3 (37.Ng5 Kg5 38.Kf2 Ng3+=) 37...Bf3 (37...Bf6 38.e5 Be7 39.Kf2+=) 38.gf3 Nf6 (38...Ng7 39.Kg2+=) 39.Bd1 (39.e5 Ne8=) 39...Nd7+= 40.Kg2 Ne5 41.Be2 (41.Bc2 Kf6–/+) 41...Kh5 (41...Kf6 42.Kf2+=) 42.Bf1 Nf7 (42...Kh6 43.Be2+=) 43.Kf2 Nd6 (43...Kg6 44.Ng5 Ng5 45.e5–+) 44.Ke2 (44.e5 Nf5=) 44...Nb7 (44...Kg6 45.e5 Nf5 46.Nf2+=) 45.Nf2 (45.e5 Kg6=) 45...Nd8 (45...Be7 46.Bh3+=) 46.Bh3= Nf7 47.Bd7 (47.Bg4 Kg6=) 47...Ne5+= 48.Be8 Kh6 49.Nh3 Bd8 (49...Ng6 50.Ng5 Kg5 51.Bg6 Kg6 52.Kf1=) 50.Nf4+/– Bg5 (50...Bf6 51.Nd5 Bd8 52.f4=) 51.Nh3 (51.Nd5 Bd8+–) 51...Be3+/– 52.f4 Ng4 53.e5 Kg7 54.Bd7 Nh6 55.Kf3 (55.f5 Ng4 56.f6 Nf6 57.ef6 Kf6+–) 55...Kf8 (55...Nf7 56.Kg4+–) 56.Ng5 (56.Be6!? Ke7 57.f5 Nf7 58.Bf7 Kf7+–) 56...Ke7 57.Bh3 (57.Be6 Ke8+/–) 57...Bd2 (57...Nf7 58.Ne6+/–) 58.Ne6 (58.Ne4 Be3+–) 58...Nf7 59.Nc7 Kf8 (better is 59...Ba5+–) 60.Nd5 Ba5 (60...Ke8 61.Nb6 Be3 62.Nd7+–) 61.Kg4 Nh8 (61...Ke8 62.Bg2+–) 62.Kh4 Ng6 63.Kg5 Ne7 64.f5 Nd5 65.cd5 c4 (65...Bd2 66.Kf6+–) 66.dc4 d3 67.Bg4 Bc3 68.Kf6 Bd4 69.Bh5 d2 70.d6 Bc5 71.Ke6 Bb4 (71...Bd4 72.d7 Kg8 73.d8Q Kg7 74.Qd4 d1Q 75.Bd1 Kg8 76.Ke7 Kg7 77.f6 Kh8 78.Bc2 Kg8 79.Qd8) 72.f6 (72.f6 d1Q 73.Bd1+–) 1–0. Kukel,Imre (2125) – Grof,Stefan (2010), SVK–chT1W, 2001.

7.d4 cd4 8.ed4 e4 9.Nfd2 Ne7 10.c4 0–0 11.cd5 =.

7.Be2 Ne7 8.0–0 Qc7 9.Ne1 0–0 10.Nc3 a5 11.Rb1 +=.

6.Nf3 Ne7

7.Na3 c6 8.Qc1 (8.bc6 Nbc6 9.Nb5 Bb8+=) 8...Nd7 9.c4 (9.Be2 Nc5–/+) 9...Nc5 (9...0–0 10.d4–/+) 10.Qc2 (10.d4 Nb3 (10...Na4?! 11.c5 Qa5 12.Ke2–/+) 11.Qc3 Na1 12.Ba1 e4–+) 10...Bf5 (10...Qa5–/+) 11.Qc3 (better is 11.d3!?–/+) 11...Na4–+ 12.Qb3 Nb2 13.Qb2 0–0 (13...a6 14.bc6 bc6 15.d4–+) 14.Be2 (14.bc6 bc6 (14...Nc6?! 15.Qb7 Rc8 16.cd5+=) 15.d4 Rb8–+) 14...Be4 (14...e4 15.Nd4–+) 15.d3 Bf3 (15...Qa5 16.Kf1 Bf5 17.Kg1–+) 16.Bf3–/+ e4 17.de4 (17.Be2 Qc7–/+) 17...de4 (17...Be5 18.Qc1 Ba1 19.Qa1 Qa5 20.Ke2 dc4 21.Nc4 Qb5 22.Qa2–+) 18.Be4 (18.Bg4 f5 19.Be2 Qc7–+) 18...Be5–+ 19.Qd2?? (better is 19.Qc1 f5 20.Bc2 Bc3 21.Ke2 Ba1 22.Qa1–+) 19...Ba1 20.Qd8 Rfd8 21.0–0 (21.Ke2 Be5–+) 21...Bb2 22.Nc2 f5 (22...a5 23.Rb1 Be5 24.bc6 bc6 25.f4–+) 23.Bf3 (23.Rb1 fe4 24.f3 Be5 25.fe4 Rd2–+) 23...Rd2 24.Ne1 (24.Nb4 Bc3 25.Rb1 Bb4 26.Rb4 Rad8–+) 24...a5 25.bc6 (25.ba6 ba6 26.e4 a5–+) 25...bc6 (25...bc6 26.g4 fg4 27.Bg4 a4–+) 0–1. Hofmann,Philipp – Pietzsch,Manuel (2070), DSSM WK2 Husum, 2002.

7.Na3 Nd7 8.Be2 +=.

7.c4 0–0 8.Nc3 dc4 9.d3–/+ (9.Ne4 a6 10.Qc2 c3 11.Bc3 Nd5 12.Bd3 Nc3 13.Nd6 Qd6 14.dc3 ab5 15.Bh7; 9.Qc2 Nd7 10.Ne4 Nd5 11.Bc4 N7b6 12.Bb3 Qd7 13.0–0 Nb4 14.Qd1 Rfd8 15.Ba3) 9...cd3 10.Bd3 Nd7 11.Qc2 g6 12.Qe2 Qe8 13.0–0 Nc5 14.Bc4 Qf7 15.Be6.

7.c4 0–0 8.Nc3 c6 9.cd5 (9.Rc1 Nd7 10.Be2 Qb6 11.bc6 bc6 12.cd5 cd5 13.Nb5 Bc5 14.d4 Bb4 15.Bc3; 9.Be2 dc4 10.Qc2 Nd7 11.Ne4 Nb6 12.Nd6 Qd6 13.Ba3 c5 14.0–0 Rac8 15.Rfc1; 9.bc6 bc6 10.cd5 cd5 11.Nb5 Nbc6 12.Be2 Bb4 13.0–0 a6 14.Nc3 Rb8 15.Ba6) 9...cd5 10.Be2 Nd7 11.0–0 Rc8 12.d4 Nf5 13.de5 Ne5 14.Nd5 Nc4 15.Bc4.

7.c4 0–0 8.Nc3 Nd7 9.d3 (9.cd5 Nd5 10.Nd5 Bd5 11.Qc2 Qe7 12.Bc4 Nb6 13.Bd5 Nd5 14.0–0 Rfe8 15.d3; 9.Nd5 Nd5 10.cd5 Bd5 11.Qc2 Qe7 12.Bc4 Nb6 13.Bd5 Nd5 14.0–0 Rfe8 15.d3) 9...c6 (9...dc4 10.dc4 Nc5 11.Be2 Qe8 12.Qc2 Qf7 13.Nd2 Nf5 14.0–0 Qg6 15.Rac1) 10.Be2 dc4 11.dc4 Rc8?? (11...Nb6 12.Qb3+= (12.Nd2 a5 13.ba6 ba6 14.a5 Nd7 15.Nde4) 12...Qc7 13.0–0 Rad8 14.Rfd1 Nd7 15.h3; 11...Bb4 12.0–0 Nc5 13.Na2 Qd1 14.Rfd1 Na4 15.Be5) 12.0–0 (better is 12.Qd6 Kf7 13.0–0+–) 12...Nb6 13.Ne4 Nc4?? (better is 13...Bb8 14.c5 Nc4=) 14.Nd6?? (better is 14.Bc4 Bc4 15.Nd6 (15.Qd6?! Bf1 16.Qe6 Kh8 17.Rf1 Qd5 18.Qe7 Qe4+=) 15...Bf1 16.Nc8 (16.Kf1?! Rc7+–) 16...Qc8 17.Qf1+–) 14...Nd6–/+ 15.bc6 Nc6 (better is 15...Rc6 16.Ba3 Nd5–/+) 16.Ba3+= Re8? (better is 16...Ne4!? 17.Bf8 Qf8+=) 17.Qd6 (17.Bd6!? e4 18.Ne1 Qd7+–) 17...Qd6+/– 18.Bd6 e4 19.Nd4 Nd4 20.ed4 1–0. Darkseid – TeaCzar, ChessWorld.net, 2011.

7.c4 Nd7 8.d4 c5 (8...dc4 9.Nbd2 Bb4 10.Ba3 Ba3 11.Ra3 c3 12.Rc3 Nd5 13.Rc1 0–0 14.Bc4 ed4 15.Nd4) 9.cd5 Nd5 10.e4 cd4 11.ed5 Bd5 12.Nbd2 Qa5 13.Rc1 Nb6 14.Bd3 Na4 15.Ra1.

7.d3 0–0 8.Be2 Qe8 9.0–0 a6 10.Ba3 ab5 11.ab5 +=.

7.d3 a5 8.Be2 0–0 9.0–0 c6 10.c4 Nd7 11.Ba3 =.

7.d3 a6 8.Be2 ab5 9.ab5 Ra1 10.Ba1 0–0 11.0–0 +=.

7.d3 Bb4 8.c3 Bd6 9.Be2 a6 10.0–0 ab5 11.ab5 +=.

7.d3 c5 8.Be2 Qc7 9.a5 0–0 10.e4 c4 11.0–0 +=.

7.d3 c6 8.Be2 Qc7 9.0–0 0–0 10.Ba3 c5 11.e4 +=.

7.d3 Qd7 8.Ba3 (8.Be2 0–0 9.0–0 a6 10.d4 e4 11.Nfd2+=) 8...Ba3 9.Ra3 d4 10.Be2 a6 11.c4 +=.

7.d3 Nd7 8.Nc3 0–0 9.Be2 Qe8 10.0–0 Qg6 11.Nh4 +=.

7.d3 Nd7 8.Nbd2 c5 9.c4 d4 10.e4 Ng6 11.g3 Ne7 12.a5 Qc8 (12...a6 13.b6+=) 13.h4 Nb8 14.Be2 a6 15.Qc2 0–0 16.Bc1 Qe8 17.Qb2 Qd7 18.Bd1 Bg4 19.Ba4 ab5 20.cb5 Kh8 (20...Ra5? 21.Bb3 Kh8 22.Ra5+–) 21.Bd1 Bc7 22.Nc4 White plans b6 22...Be6 23.b6 Bd6 24.Nd6 Qd6 25.Bd2 Nec6 26.0–0 Na6 27.Be2 Nab4 28.Rfb1 Ra6 (28...Ra5?! 29.Ra5 Na5 30.Bb4 cb4 31.Qb4 Qb4 32.Rb4+=) 29.Ra3 (29.Bb4!? Nb4 30.Ra3–/+) 29...Rfa8–+ (29...Na5?! 30.Bb4 cb4 31.Qb4 Qb4 32.Rb4+=) 30.Rba1 Ra5 (30...Na5 31.Bd1–+) 31.Ra5 Ra5 32.h5 Ra1 33.Qa1 Na6 (33...Qd8 34.Bb4 cb4 35.h6–+) 34.Nh4 (34.h6 g5–+) 34...Kg8 (34...Qd8 35.Ba5–+) 35.f4 Ncb4 (35...Qd8 36.Qb2–+) 36.f5 (36.Bb4 cb4 (36...Nb4?! 37.Qa8 Qf8 38.Qb7=) 37.Qa4 Bf7–/+) 36...Bd7 (36...Ba2 37.h6–+) 37.h6 (37.Bb4 cb4 (37...Nb4?! 38.Qa8 Qf8 39.Qb7=) 38.Qa2 Kf8–/+) 37...Be8 (37...Qb6 38.Qd1 c4 39.hg7 Kg7 40.Bf1–+) 38.g4 (better is 38.Qa5!?–/+) 38...Qb6–+ 39.g5 (39.hg7 Kg7 40.Qc1 Bb5 41.Bh6 Kf7–+) 39...Qc6 (39...c4 40.hg7 cd3 41.Bf1–+) 40.Kh2 (40.hg7 c4 41.Bb4 cd3 42.Bf1 fg5 43.Qa5 Qe4 44.Qd8 Nb4 45.Qe7 Qe3 46.Kh2 Qf2 47.Bg2 Qh4 48.Kg1 Qe1 49.Kh2 Qh4 50.Kg1 Qe1 51.Kh2 Qh4=) 40...Qa4?? (better is 40...c4–+) 41.Qg1+= fg5 42.Qg5 Qd7 43.f6 g6 44.Bg4 (better is 44.Nf3!?+=) 44...Qf7–+ 45.Nf5 Qc7 (45...Nd3 46.Nd6 c4 47.Nf7 Kf7 48.Bf5+=) 46.Ng7 (46.Ne7 Kf8 47.Be2–+) 46...Bf7 47.Ne6 (47.Be2 b5–+) 47...Qd6 48.Bf5 (48.Ng7 Nd3 49.Nf5 Qc7–+) 48...Kh8 49.Bg6 hg6 50.h7 Qe6 51.Qh4 Nc7 52.Bh6 Qa2 53.Kg3 Qf2 54.Kf2 Nd3 0–1. Stolzenwald,Karl Heinz – Hager,Joshua Aarash (2005), Bad Woerishofen op1, 2006.

7.d3 Nd7 8.Be2 0–0 9.0–0 a6 10.Nbd2 c6 11.bc6 +=.

7.d3 Nf5 8.Be2 0–0 9.0–0 Qd7 10.c4 dc4 11.dc4 =.

7.d3 Bg4 8.Be2 0–0 9.0–0 a6 10.c4 ab5 11.ab5 =.

7.d3 Ng6 8.Be2 Nd7 9.0–0 a6 10.c4 ab5 11.cd5 =.

7.d4 e4 8.Nfd2 Nd7 (8...0–0 9.c4 c6 10.c5=) 9.c4= c6 10.Nc3 0–0 (10...Qa5 11.bc6 bc6 12.Ba3=) 11.Qb3 (11.Be2 Qa5=) 11...f5 12.Be2 a6 (12...Rb8 13.c5 Bc7 14.0–0=) 13.c5 Bb8 14.b6 (14.0–0 b6 15.cb6 Qb6 16.ba6 Qc7+=) 14...Rf6 15.f4 Rh6 16.0–0 Bf7 (16...Ng6 17.Rfd1=) 17.a5 g5 (17...Bh5 18.Qd1 Be2 19.Qe2=) 18.Nd1 (18.Rae1 Ng6 19.g3 gf4 20.ef4 Bf4–/+) 18...Qf8= 19.Rf2 (worse is 19.fg5 Bh2 20.Kh1 Bf4 21.Kg1 Bg5–/+) 19...Qg7 20.g3 gf4 21.ef4 Bh5 22.Bf1 Bd1 (22...Nf8 23.Qe3=) 23.Rd1+= (worse is 23.Qd1 e3 24.Re2 ed2 25.Qd2 Nf6–/+) 23...Nf6 (23...Re6 24.Re1+=) 24.Re1 Rg6 25.Bg2 (25.Rg2 Qh6+=) 25...h5= 26.Nf1 h4 27.Qd1 hg3 28.hg3 (worse is 28.Ng3 Qh6 29.Rff1 Bf4–+) 28...Rg3 (28...Kf8!?–/+) 29.Ng3= Qg3 30.Bc1 Ng4 31.Rb2 Ng6 (31...Bf4?! 32.Bf4 Qf4 33.Qb3+=) 32.Rb3 Qf2 33.Kh1 Bf4 34.Rf1 Qh4 35.Rh3 Nf2 36.Rf2 Qf2 37.Bf4 (37.Bf1–+) 37...Nf4 (37...Qf4?! 38.Qh5 Nf8 39.Kg1–+) 38.Rh2 Ne2 39.Rh6 (39.Rh3–+) 39...Kg7 (39...Kg7 40.Rh3 Rh8 (40...Nd4?! 41.Qh5 Ne6 42.Qh7 Kf6 43.Rh6 Ke5 44.Re6 Kd4 45.Bh3–/+) 41.Qe2 Rh3 42.Bh3 Qe2–+; 39...Nd4 40.Rg6 Kf8 41.Qh5 Qe1 42.Kh2 Nf3 43.Bf3 Qf2 44.Rg2 Qg2 45.Bg2+–) 0–1. Zylla,Johannes – Krasny,Henryk Jan, corr 3GMM–32, 1996.

7.Be2 c5 8.0–0 Qc7 9.Ne1 0–0 10.a5 d4 11.a6 +=.

7.Be2 Nd7 8.0–0 0–0 (8...c5 9.bc6 Nc6 10.Ba3 Ba3 11.Na3+=) 9.d3 (9.Ba3 Ba3 10.Ra3 Nf5+=) 9...c6 (9...a6 10.Nc3+=) 10.c4 a5 (10...cb5 11.ab5 dc4 12.dc4=) 11.cd5 cd5 12.Ba3 Qb6 13.Bd6 Qd6 14.d4 e4 15.Nfd2 Rac8 (15...f5 16.f3=) 16.Qb3 (16.Ra3 f5=) 16...Nf5 (16...f5 17.f3=) 17.Bg4 (17.Nc3 Nb6=) 17...Nd4+= 18.Be6? (better is 18.ed4!? Bg4 19.Ne4+=) 18...Ne6–+ 19.Nc3 (19.Rd1 Ndc5 20.Qa3 Qe5–+) 19...Nb6 (19...Ndc5 20.Qd1 Nd3 21.Ne2–+) 20.Rfd1 (20.Ra2 f5–+) 20...f5 (20...Qe5 21.Ne2–+) 21.Ne2 Rc7 22.Rac1 Rc1 23.Rc1 Nc5 (23...f4 24.ef4 Nf4 25.Nf4 Qf4 26.Qe3 Qe3 27.fe3 Na4 28.Ra1–+) 24.Qa2 (24.Qa3 Nba4 25.Nb3 b6–/+) 24...Nd3 (24...Nca4 25.Nb3 Qb4 26.Nbd4–+) 25.Rd1 (25.Rc2 Nb4 26.Qa3 f4 27.Nf4 Rf4 28.ef4 Qf4–/+) 25...Rc8 (25...Qb4 26.Nb3–+) 26.Nd4 Qg6 (26...Qh6 27.Qb3–+) 27.f3 (27.N2b3 Nc4 28.Qc2 Qh5–/+) 27...Qg5 28.f4 Qg6 (28...Qh4 29.N2b3 Qh5 30.Rb1–+) 29.Nf1 Nc4 (29...Qg4 30.Qd2–+) 30.Ng3 (30.Qc2 Qf6–+) 30...Kh8 (30...Qg4 31.Qc2 Qd1 32.Qd1 Ne3 33.Qd2 Rc1 34.Qc1 Nc1 35.Ngf5 Nf5 36.Nf5 Ne2 37.Kf2 Nf4 38.g3 Nd3 39.Ke3–/+) 31.Ndf5 (31.Qc2 Nd6 32.Qb3 Rc4–+) 31...Qb6 (31...Rf8 32.Qa1–+) 32.Qa1 (better is 32.Qc2!?–/+) 32...Rc7–+ 33.Nf1 Nf4 34.Kh1 (34.Qa2 Nd3–+) 34...Nd3 35.Kg1 Ncb2 (35...Rf7 36.Nd4–+) 36.Rb1 Rf7 (36...Qf6 37.g4–+) 37.g4 (37.N1g3 Nc4 38.Qd4 Qd4 39.ed4–+) 37...Rf5! 38.gf5 Nc4 39.Qd4 Qh6 40.Qd5?? (better is 40.Rb3 Qg5 41.Ng3–/+) 40...Qg5 41.Ng3 Qe3 42.Kg2 Nf4 0–1. hal1958 – Kounoupidi, playchess.de, 2003.

7.Be2 0–0

8.Nc3 c5 9.0–0 Qc7 10.d3 f5 11.Ng5 +=.

8.d4 Nd7 9.de5 Ne5 10.Nd4 Qd7 11.Ne6 =.

8.h3 c5 9.0–0 Nd7 10.d4? (10.d3!?+=) 10...e4 (10...cd4 11.ed4 e4 12.Nfd2–/+) 11.Ne1 (11.Nfd2 Bb8 12.Bg4 f5–/+) 11...Rc8 12.Ba3 Bb8 13.f4 Rf7 (13...ef3 14.Nf3 Nf5 15.Bd3–/+) 14.dc5 (14.g4 f5–/+) 14...Nc5 (14...Nf5 15.Qd2 Ng3–+) 15.Bb4? (better is 15.g4!?–/+) 15...Nf5–+ 16.Qd2 (16.Bc5 Rc5 17.Qd2 d4–+) 16...Rd7 (better is 16...d4 17.Bc5 Rc5 18.ed4 Qd4 19.Qd4 Nd4–+) 17.Rf2?? (better is 17.Bc5 Rc5 18.c3–+) 17...d4 18.Bc5 de3 19.Qb4 (19.Qe3 Ne3 20.Be3 g5–+) 19...ef2 20.Kf2 (20.Bf2 e3 21.Be3 Ne3–+) 20...Bf4 (better is 20...Rc5 21.Ra3 Qe7 22.g4–+) 21.Ba7 (21.Ra3 Rc5! 22.Qe4 Be5–+) 21...b6 22.Qe4 Be3 (22...Be3 23.Qe3 Ne3–+) 0–1. Kislov,Leonid – Feofanov,Alexander, 2012.

8.0–0 c5

9.d3 b6 10.c4 d4 11.ed4 ed4 12.Re1 Bd7 13.Nbd2 f5 14.h3 h6 15.a5 ba5 16.Nb3 Bc8 17.Na5 Nd7 18.Nc6 Nc6=+ 19.bc6 Nb6 20.Nd2 Qc7 21.Bf3 g5 22.Nf1 Rb8 23.Bc1 a5 24.Bd2 a4 25.Ba5 Ra8 26.Bb6 Qb6 27.Ra4 Ra4 28.Qa4 g4 29.hg4 fg4 30.Bd5 Kg7 31.Ra1 Re8 32.Qa7 Qa7 33.Ra7 Re7 34.Re7 Be7 35.Ng3 Bd6 36.Ne4 Be7 37.f3 h5 38.fg4 hg4 39.Kf2 Kg6 40.Kg3+– Kf5 41.Kf2?? Kf4 42.g3 Ke5 43.Ke2 Bd6 44.Kd2 Be7 45.Kc2 Bf5 46.Kb3 Be4 47.Be4 Bd6 48.Ka4 Kf6 49.Kb5 Ke7 50.Kb6 Kd8 51.Kb7 Bg3 52.Bf5 Bc7 53.Bg4 Bd6 54.Bd7 Bc7 55.Be6 Bd6 56.Bd7 Bc7 57.Be6 Bd6 58.Bd7 ½–½. nizinna – labinot21 (1820), internet, 2011.

9.d3 Qc7 10.e4 a6 11.c4 +=.

9.d4 cd4

10.ed4 e4

11.Ne1 Qc7

12.g3 Nd7 A) 13.Nd2 f5 (13...Rac8 14.c4 dc4 15.Rc1 Qb8 16.Ne4 a5+= ) 14.c4 dc4 15.Rc1 c3 16.Rc3 Qb8+=; B) 13.Ba3 Nf5 (13...Rac8 14.Bd6 Qd6 15.a5 Qc7 16.a6 b6+= ; 13...Ba3 14.Ra3 Bh3 15.Ng2 Rac8 16.c4 dc4+=; 13...a6 14.Bd6 Qd6 15.Qd2 Nf5 16.a5 ab5+=; 13...Ng6 14.Bd6 Qd6 15.a5 a6 16.Ng2 f5+=; 13...Rae8 14.Bd6 Qd6 15.Ng2 Bh3 16.c4 f5+=) 14.Bd6 Nd6 15.Ng2 Rac8 16.Ne3 f5+=; C) 13.Qd2 Rac8 (13...Bh3 14.Ng2 f5 15.c4 Bg2 16.Kg2 f4+= ; 13...f5 14.Ng2 Ng6 15.Bh5 Rf6 16.Ba3 Nb6+=; 13...Nb6 14.a5 Nc4 15.Bc4 dc4 16.f3 f5–/+; 13...Rae8 14.Ba3 Nc8 15.a5 Bh3 16.Ng2 f5+=; 13...Rfe8 14.a5 Nf5 15.a6 ba6 16.Ra6 Nb6+=) 14.Ba3 Bh3 15.Ng2 f5 16.Re1 Bg2–/+; D) 13.Ng2 Nb6 (13...Rac8 14.Ba3 Ba3 15.Na3 Qc3 16.Ra2 Nb6+= ; 13...Ng6 14.Ba3 Rac8 15.Bd6 Qd6 16.a5 Bh3+= ; 13...Rae8 14.Ba3 Ba3 15.Ra3 Bh3 16.Re1 Bg2+=; 13...Rfe8 14.Ba3 Ba3 15.Ra3 Rac8 16.Ne3 f5+=) 14.Ba3 Nc4 15.Bd6 Nd6 16.Ra3 Rac8+=.

12.g3 f5–/+ 13.f4 (13.Ng2 f4 14.gf4 Ng6 15.Bc1 Nf4 16.Bf4 Bf4–/+) 13...ef3 (13...Nd7 14.a5 (14.Ba3–/+ Ba3 15.Ra3 Nb6 16.a5 Nc4–/+) 14...Rfe8 15.a6 ba6 16.Ra6 Nb6–/+; 13...Re8 14.Ba3 Ba3 15.Ra3 a6 16.Qd2 Nd7+=; 13...a6 14.Ba3 Nd7 15.Qc1 ab5 16.Bd6 Qd6–/+) 14.Nf3 (better is 14.Bf3 f4 15.Qe2+= Bh3 16.Bg2 Bg2+=) 14...Bg3 (14...f4 15.gf4 (15.Ne5 fg3 16.Rf8 Kf8 17.hg3 Nd7 18.Nd7 Bd7+=) 15...Bh3 16.Re1 Rf4–/+) 15.Ne5?? (better is 15.hg3 Qg3 16.Kh1+= Rf6+=) 15...Be5–/+ 16.de5 Nd7 17.Ra3 (17.Qd4 Qc2 18.Nd2 f4–/+) 17...Ng6–+ (17...Ne5 18.Re3 N7g6 19.Be5 Ne5 20.Qd4+=) 18.Bf3 (18.Bd4 Nde5 19.Rc3 Nc4–+) 18...Nde5 19.Bd5?? (better is 19.Qd4–+) 19...Qc5 20.Bd4 (20.Qd4 Qd4 21.Bd4 Bd5–+) 20...Qd5 21.Rh3 (21.Bb2 Qd1 22.Rd1 Nc4–+) 21...f4 (21...f4 22.Be5 Qc5 23.Qd4 Qd4 24.Bd4 Bh3–+) 0–1. Norbeck,Ivar – Wallin,Helge, corr SSKK Sweden, 1985.

12.Kh1 a6 13.Ba3 Rc8 (13...Nf5 14.Bd6 Nd6 15.ba6 Na6 16.Nd2 Rfc8+=; 13...Nc8 14.Qd2 ab5 15.ab5 Nd7 16.Bd6 Nd6+=) 14.Bd6 Qd6 15.Qd2 ab5 16.Bb5 Nf5 +=.

12.Kh1 b6 A) 13.Ba3 Nc8 (13...Bf4 14.g3 Bh6 15.c4 dc4 16.d5 Rd8= ; 13...Nf5 14.Bd6 Nd6 15.Ra3 a6 16.Rc3 Qd7+=; 13...Ba3 14.Ra3 a6 15.f3 f5 16.fe4 de4=; 13...a6 14.Bd6 Qd6 15.Na3 Rc8 16.Qd2 Ng6+=; 13...Rc8 14.Bd6 Qd6 15.a5 a6 16.ab6 Qb6+=; 13...a5 14.Bd6 Qd6 15.f3 Nd7 16.fe4 de4=; 13...Ng6 14.Bd6 Qd6 15.Qd2 a6 16.f3 f5+=) 14.Bd6 Nd6 15.Ra3 a6 16.Rc3 Qd7+=; B) 13.a5 ba5 14.Bc3 Nd7 15.Ba5 Nb6 16.c3 Nf5+=.

12.Kh1 Rc8 A) 13.Ba3 Nf5 (13...a6 14.Bd6 Qd6 15.ba6 ba6 16.Nd2 Nd7+= ; 13...Bf4 14.g3 Bh6 15.Be7 Qe7 16.f3 a6+= ) 14.Bd6 Nd6 15.Ra3 a6 16.Rc3 Qa5–/+; B) 13.a5 Nf5 (13...Ng6 14.Nd2 Bb4 15.f3 ef3 16.Bf3 Ba5–/+ ) 14.h3 Bb4 15.a6 ba6 16.c3 Bd6–/+.

12.Kh1 Nc8 A) 13.Ba3 a6 (13...Nd7 14.Bd6 Nd6 15.a5 Rac8 16.a6 Nb6+= ; 13...b6 14.Qd2 a6 15.Qc3 Rf7 16.Qb2 ab5+= ) 14.Qd2 ab5 15.ab5 Nd7 16.Bd6 Nd6+=; B) 13.h3 f5 (13...a6 14.Ba3 Ba3 15.Na3 Qc3 16.Ra2 Nd6+= ; 13...Re8 14.Ba3 Nd7 15.Bd6 Nd6 16.a5 Rac8+=) 14.Ba3 f4 15.a5 f3 16.gf3 Bh3–/+; C) 13.Bc1 a6 (13...b6 14.Ba3 a6 15.ba6 Na6 16.f3 Rd8+=) 14.Ba3 Re8 15.Qd2 Nd7 16.Qc3 ab5+=; D) 13.Qd2 Nb6 (13...f5 14.Ba3 f4 15.a5 Rf6 16.Bd6 Nd6+= ; 13...Rf7 14.a5 f5 15.f4 Re7 16.Qe3 Re8= ; 13...Re8 14.Qc3 Ne7 15.Qc7 Bc7 16.a5 Ng6+=; 13...a6 14.Ba3 Nd7 15.ba6 ba6 16.f3 f5+=; 13...Nd7 14.Qc3 a6 15.Qc7 Bc7 16.Ba3 Nd6+=; 13...Bf4 14.Qc3 a6 15.Qc7 Bc7 16.Ba3 Re8+=) 14.Ba3 Bf4 15.Qc3 Rc8 16.Qc7 Rc7+=; E) 13.Nd2 a6 (13...Re8 14.a5 Bf4 15.Nb3 Nd7 16.Bc1 Bd6+= ; 13...Bf4 14.Nb3 Nd7 15.Bc1 Bc1 16.Qc1 Nd6+= ) 14.ba6 Na6 15.c4 Bh2 16.Rc1 Qf4+=.

12.Kh1 Re8 13.Ba3 Nf5 (13...Bh2 14.Be7 Re7 15.g3 Bg3 16.fg3 Qg3=; 13...Bf4 14.Bc1 Bc1 15.Qc1 a6 16.Qb2 Nd7+=; 13...Nc8 14.Bd6 Nd6 15.Qd2 a6 16.Na3 ab5+=; 13...Nd7 14.Bd6 Qd6 15.a5 Rac8 16.Qd2 Nf5=; 13...Ba3 14.Ra3 a6 15.Qd2 Nf5 16.Kg1 ab5+=) 14.Bd6 Nd6 15.Nd2 a6 16.ba6 ba6 +=.

12.Kh1 f5 A) 13.Ba3 f4 (13...Nd7 14.a5 Rac8 15.a6 b6 16.Bd6 Qd6=; 13...Bf4 14.Nd2 Re8 15.Nb3 Nd7 16.Bh5 g6+=) 14.Bd6 Qd6 15.a5 a6 16.ba6 ba6+=; B) 13.a5 Bb4 (13...Rf7 14.Bh5 g6 15.Be2 Bb4 16.a6 ba6+=; 13...Ng6 14.Nd2 Rc8 15.Ba3 Bf4 16.Bb4 a6= ; 13...Re8 14.Nd2 Nd7 15.Ba3 Bf4 16.Bb4 Rac8+=; 13...Nc8 14.Nd2 Rf6 15.h3 Bb4 16.Nb3 f4+=; 13...f4 14.Ba3 Nf5 15.Bd6 Nd6 16.Nd2 Qc3–/+) 14.Ba3 Qa5 15.c3 Ba3 16.Ra3 Qc7–/+; C) 13.Nd2 a6 14.Ba3 Ba3 15.Ra3 ab5 16.Bb5 Nbc6+=.

12.Kh1 Nf5 13.Ba3 a6 (13...Rc8 14.Bd6 Nd6 15.Nd2 a6 16.ba6 Na6+=) 14.Bd6 Nd6 15.ba6 Na6 16.Nd2 Rfc8 +=.

12.Kh1 Rf7 13.Ba3 a6 (13...Nf5 14.Bd6 Qd6 15.a5 a6 16.b6 Nc6= ; 13...Nc8 14.Bd6 Nd6 15.Nd2 Nd7 16.a5 Rc8+= ; 13...Bf4 14.Bc1 Bc1 15.Qc1 a6 16.Qb2 Nd7+=; 13...Ba3 14.Ra3 f5 15.a5 f4 16.Qd2 Qd6+=; 13...Nd7 14.Bd6 Qd6 15.Nd2 Nf5 16.Nb3 Rc8=; 13...Bh2 14.g3 Bg3 15.Be7 Bh3 16.Ng2 Re7+=; 13...f5 14.Bd6 Qd6 15.Nd2 Nd7 16.c4 Qf4=) 14.Bd6 Qd6 15.Nd2 b6 16.Nb3 Nf5 +=.

12.h3 a6 A) 13.Nc3 Ng6 (13...Rc8 14.Ba3 Nf5 15.Bd6 Qd6 16.Na2 ab5–/+ ; 13...Qa5 14.Ba3 Ba3 15.Ra3 Rc8 16.Nb1 Nf5+=; 13...Nd7 14.Ba3 Bh2 15.Kh1 Rfe8 16.Nb1 Nf5–/+; 13...Bb4 14.Na2 Ba5 15.Ba3 ab5 16.Bb5 Rc8–/+; 13...Re8 14.a5 Bb4 15.b6 Qd6 16.Ne4 de4–/+; 13...Nf5 14.Rb1 Rc8 15.Ba1 Qa5 16.Bg4 Rc3–/+) 14.f3 Bb4 15.Na2 Be1 16.Re1 Qg3–/+; B) 13.Ba3 Nf5 (13...ab5 14.ab5 Ba3 15.Ra3 Nd7 16.Ra8 Ra8+= ; 13...Rc8 14.Bd6 Qd6 15.ba6 ba6 16.Nd2 f5+=; 13...Nc8 14.Qd2 ab5 15.ab5 Nd7 16.Bd6 Nd6+=; 13...Ba3 14.Ra3 ab5 15.ab5 Ra3 16.Na3 f5+=) 14.Bg4 Rc8 15.Bd6 Qd6 16.ba6 Ra6+=.

12.h3 Rc8 13.a5 (13.Ba3 Bh2 14.Kh1 Nf5 15.Bb2 Bd6 16.a5 Bb4–/+) 13...Ng6 (13...Bb4 14.a6 ba6 15.c3 Bd6 16.ba6 Nbc6+=) 14.Bc1 Nf4 15.Bf4 Bf4 16.Nd2 Bh2 +=.

12.h3 Re8 A) 13.a5 Bb4 (13...Ng6 14.Bh5 Bf5 15.Ra4 Qd7 16.Be2 Bh3+= ; 13...Nf5 14.Bc1 Rc8 15.Be3 Ne3 16.fe3 Bb4–/+; 13...f5 14.Bh5 g6 15.Be2 f4 16.Bg4 Bg4+=; 13...Nd7 14.a6 b6 15.Ba3 Bh2 16.Kh1 Nf5+=; 13...Bf5 14.Ra4 Nd7 15.c4 Rac8 16.Ba3 Bh2=) 14.b6 Qd8 15.c3 Bd6 16.Bb5 Nbc6–/+; B) 13.Ba3 Bh2 (13...Bf4 14.Bc1 Bh2 15.Kh1 Bd6 16.a5 Nf5+= ) 14.Kh1 Nf5 15.a5 Bf4 16.Bb2 Nd6+=.

12.h3 Bf4 A) 13.a5 Re8 (13...Rc8 14.Bc1 Bh2 15.Kh1 Bd6 16.Ba3 Ba3+= ; 13...Ng6 14.Nd2 Nd7 15.a6 b6 16.Ra3 Qd6=; 13...Nf5 14.Bg4 Bh2 15.Kh1 Bd6 16.Nc3 Qc4+=; 13...Nd7 14.a6 b6 15.Ra3 Rac8 16.Rc3 Qb8+=) 14.Bc1 Bh2 15.Kh1 Bd6 16.Bh5 Rc8+=; B) 13.Ba3 Rc8 (13...Re8 14.Bb4 a5 15.Ba3 Nf5 16.Bh5 g6–/+ ; 13...Rd8 14.Nd2 Nf5 15.Nb3 e3 16.Bg4 ef2+= ; 13...Rf7 14.Bc1 Bc1 15.Qc1 a6 16.Qb2 Nf5+=; 13...b6 14.Bb4 a5 15.Ba3 Rc8 16.c3 Nf5+=) 14.Nd2 Nf5 15.Bg4 Nd4 16.Nb3 Bg4–/+; C) 13.Nd2 Nf5 (13...Rc8 14.a5 Nf5 15.g4 Nd6 16.f3 Be3–/+ ; 13...Nd7 14.a5 Rae8 15.Bh5 Bf7 16.Be2 Bg6+=; 13...a5 14.Ba3 Re8 15.Nb3 b6 16.Bh5 g6+=; 13...a6 14.Ba3 Re8 15.Nb3 Nd7 16.Rb1 ab5+=; 13...Ng6 14.a5 Nd7 15.a6 b6 16.Ra3 Rac8=; 13...Re8 14.Bc1 Nd7 15.a5 Rac8 16.Nb3 Bh2+=) 14.Ba3 Re8 15.Bh5 g6 16.Bg4 e3–/+; D) 13.Ra2 Nf5 (13...Nd7 14.Bc1 Bh2 15.Kh1 Bd6 16.a5 Rae8+= ; 13...Rc8 14.a5 Ng6 15.Bg4 f5 16.Be2 Bd6+=; 13...a6 14.Ba3 Re8 15.Rb2 ab5 16.Bb5 Nd7–/+) 14.Ba3 Rc8 15.Kh1 Nd7 16.Bb4 e3–/+; E) 13.Nc3 a5 (13...b6 14.a5 ba5 15.Ba3 Re8 16.Na4 Nd7+= ; 13...Nd7 14.a5 Rac8 15.a6 b6 16.Nb1 Nf5+= ; 13...Qa5 14.Nb1 Nd7 15.Bc3 Qc7 16.Bb4 Rfe8+=; 13...Re8 14.a5 Nf5 15.b6 Qd7 16.Bb5 Nc6+=; 13...Rc8 14.a5 Nf5 15.b6 Qf7 16.Bg4 Qg6+=; 13...Ng6 14.a5 Rc8 15.b6 Qf7 16.ba7 Nc6+=) 14.Rb1 Nd7 15.Ba3 Rae8 16.Rb3 Nb6–/+; F) 13.Bc1 Bh2 14.Kh1 Nf5 15.a5 Bd6 16.Qd2 Rc8+=.

12.h3 f5+= A) 13.Ba3 Ba3 (13...f4 14.Bg4 Bg4 15.Qg4 Nf5 16.Bd6 Qd6+= ) 14.Ra3 f4 15.Bg4 Bg4 16.Qg4 Nf5–/+; B) 13.Nd2 f4 (13...a6 14.Ba3 Ba3 15.Ra3 ab5 16.Bb5 f4+= ) 14.Bg4 Bg4 15.Qg4 Nf5 16.a5 Qe7+=; C) 13.a5 f4 14.Bg4 Bd7 15.Bd7 Nd7 16.a6 Rab8+=.

12.h3 Nf5 A) 13.a5 Rd8 (13...Bh2 14.Kh1 Bf4 15.Ra4 a6 16.b6 Qc6+= ; 13...Re8 14.Bc1 Nd7 15.a6 Nb6 16.c3 ba6+= ; 13...Bb4 14.b6 Qc6 15.c3 Bd6 16.ba7 Ra7–/+; 13...Rc8 14.Bc1 Nd7 15.a6 Rab8 16.ab7 Rb7–/+; 13...Rf7 14.Bc1 Nd7 15.a6 b6 16.c3 Rc8+=; 13...Bf4 14.Bg4 Qd7 15.Nc3 Rc8 16.Ra2 Bd6+=; 13...h6 14.Bc1 Rc8 15.Be3 Nd7 16.a6 Rab8+=) 14.Nd2 e3 15.b6 ef2 16.Kf2 Qe7–/+; B) 13.Nd2 e3 14.Ndf3 ef2 15.Rf2 Bg3 16.a5 Ne3–+; C) 13.Ba3 Bh2 14.Kh1 Rc8 15.a5 Nd4 16.b6 ab6+=.

12.h3 Bh2 13.Kh1 Nf5 14.Bg4 Bd6 15.Ba3 Ba3 16.Bf5 Bf5 +=.

5.a4 Nd7

6.d4 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.d4 Nd7 6.a4).

6.Nf3 Bd6 7.Nc3 Ne7 8.h4 0–0 9.h5 c6 10.h6 g6 11.Be2 a6 12.g4 ab5 13.ab5 Qb6 14.g5 f5 15.Na4 Qc7 16.Qb1 c5 17.b6 Nb6?? 18.Nb6= Qb6 19.Ne5 Be5 20.Be5 Qb1? 21.Rb1+/– Bc8 22.Rh4 Nc6 23.Bf6 Kf7 24.Bb5 Bd7 25.Ke2 Rfe8 26.Rhh1 Re6 27.f4 Rae8 28.Ra1?? Rf6 29.gf6 Nd4 30.Kf2 Nb5 31.Rhb1 Bc6 32.d3 Nc3 33.Rb6 d4 34.Ra7 de3 35.Ke1 Ke6 36.Rc6?? bc6–+ 37.Rh7 Kf6 38.Rg7 Rh8 39.Rc7 Rh6 40.Rc6 Ke7 41.Rc5 Na4 42.Rc4 Nb6 (42...Nb6 43.Rd4 Ke6–+) 0–1. xtom – solas1976, internet, 2011.

6.Nf3 Bb4

7.c3 Bd6 8.Be2 Ne7 9.0–0 0–0 10.d3 a6 11.Nbd2 c6 12.bc6 Nc6 13.c4 Bb4 14.d4 e4 15.cd5 Bd5 (worse is 15...ef3 16.Bf3 Nde5 17.de6 Nf3 18.Nf3+–) 16.Ne1 Na5 17.Ba3 Ba3 18.Ra3 Rc8 19.Qb1 f5 20.f3 Qe7 21.Qb2 Nb6 22.Rf2 Nac4 23.Nc4 Nc4 (worse is 23...Bc4 24.Qb6 Be2 25.Qb2=) 24.Bc4 Rc4 25.f4 a5 26.Rc2 Qb4 27.Qa1 (27.Ra1!?+=) 27...Rfc8–/+ 28.Rb2 Qf8 29.Rb1 Rb4 30.Rd1 Rcc4 31.Rc3 (31.Rc1 Rc1 32.Qc1 Rb1 33.Qb1 Qa3–/+) 31...Ra4–+ 32.Qb2 Rab4 33.Qd2 Rc3 34.Qc3 Qd8 35.Qd2 Rb3 36.Ra1 b6 37.Rc1 a4 38.Nc2 b5 39.Na1 Rd3 40.Qb4 Re3 41.Qb5 a3 42.Qa6 Kf7 43.Qa7 Kg6 44.Qa6 (44.Qc5 Rd3 45.Kh1–+) 44...Qf6 45.Qa4 (45.Qf1 Rd3 (45...Qd4?! 46.Nc2 Qb6 47.Ne3 Qe3 48.Kh1–/+) 46.Kh1 Qd4–+ (46...Rd4?! 47.Qe1–+)) 45...Rd3 46.Qe8 (46.Kh1 Qd4 47.Qa6 Kh5–+) 46...Bf7 (46...Kh6 47.Nc2 Rc3 48.Qa4–+) 47.Qe5 a2 48.h4 (48.h3 Be6–+) 48...Kh5 49.Kf1 (49.Qb5 Qd4 50.Kh1 Kg4–+) 49...Rd4 (49...Qe5 50.fe5 Kh4 51.Kf2 Rd2 52.Ke3 Rg2 53.Kf4 Rf2 54.Ke3 Rf3 55.Kd2–+) 50.Qa5 e3 51.Qe1 Rf4 52.Kg1 Qe5 53.Qe2 Kh4 54.Re1 Bc4 55.g3 Kg3 56.Qe3 Qe3 57.Re3 Rf3 58.Re1 f4 59.Nc2 Rf2 (59...Rd3 60.Nd4 Rd4 61.Ra1 f3 62.Rf1 f2 63.Rf2 a1Q 64.Rf1 Qf1) 60.Nd4 (60.Rd1 Rg2 61.Kh1 f3 62.Rf1 f2 63.Rf2 Rf2 64.Ne3 a1Q 65.Nd1 Qd1) 60...Rg2 61.Kh1 Bd5 62.Nf5 Kf2 (62...Kh3 63.Nh4 Rg3 64.Ng2 Rg2 65.Rd1 a1Q 66.Ra1 Rg3) 63.Rf1 (63.Re2 Ke2 64.Ng3 Rg3 65.Kh2 Rg2 66.Kh3 a1Q 67.Kh4 Qh1) 63...Kf1 64.Ne3 Kf2 (64...fe3?!) 65.Ng2 Kg3 66.Kg1 a1Q (66...Bg2?!) 67.Ne1 Qe1 0–1. Schlaeger,Michael (2270) – Dammer,Axel (2400), RSX7E – A00 – Sokolsky–1, 2008.

7.Be2 Ne7

7.Be2 Ne7 8.0–0 0–0 9.c3 Bd6

10.d3 Kh8

11.Na3 Nc5

12.Qc2 Rb8 13.c4 c6 (13...Qd7 14.d4 Bf5 15.Qd1 ed4 16.Bd4 Ne4 17.Nh4=) 14.Rfc1 (14.d4 Bf5 15.Qd1 Nd7 16.c5 Bc7 17.Bc3=; 14.Bc3 Qc7 15.d4 Bf5 16.Qd1 Ne4 17.Bb2=) 14...Qa5 15.d4 Bf5 16.Bc3 Qd8 17.Qd1 =.

12.Qc2 Rb8 13.d4 A) 13...Nd7 14.c4 (14.de5 fe5 15.c4 c6 16.Rad1 Ng6 17.bc6= ) 14...Bf5 15.Qd2 c6 16.c5 Bc7 17.Bc3=; B) 13...Bf5 14.Qd1 ed4 15.Nd4 Be4 16.c4 Qe8 17.cd5=.

12.Qc2 c6 13.d4 Bf5 (13...ed4 14.Nd4 Qb8 15.Ne6 Ne6 16.h3 Qc7 17.c4=; 13...Nd7 14.c4 Bf5 15.Qb3 ed4 16.Bd4 Be4 17.Rfd1=) 14.Qd1 Nd7 15.c4 e4 16.Nh4 Be6 17.c5 =.

12.Qc2 Rc8 13.c4 c6 (13...Qd7 14.d4 Bf5 15.Qd1 ed4 16.Nd4 Rcd8 17.Nf5=; 13...Re8 14.Rfc1 (14.cd5 Nd5 15.Nc4 Nb4 16.Qb1 Bc4 17.dc4= ; 14.d4 Bf5 15.Qd1 ed4 16.Nd4 Be4 17.cd5=; 14.Rac1 c6 15.d4 Bf5 16.Qd1 ed4 17.Bd4=) 14...c6 15.d4 Bf5 16.Qd1 ed4 17.Bd4=; 13...a5 14.Rfc1 (14.Rac1 Re8 15.d4 Bf5 16.Qd1 ed4 17.Nd4+= ; 14.cd5 Nd5 15.Nc4 Nb4 16.Qb1 Bc4 17.dc4=; 14.d4 Bf5 15.Qd1 ed4 16.Nd4 Be4 17.cd5+=) 14...Qe8 15.d4 Bf5 16.Qd1 ed4 17.Bd4+=; 13...Kg8 14.Rac1 (14.a5 c6 15.d4 Bf5 16.Qd1 ed4 17.Nd4=; 14.Rfc1 c6 15.d4 ed4 16.Bd4 Qa5 17.bc6=; 14.d4 Bf5 15.Qd1 ed4 16.Nd4 Be4 17.f3=) 14...Re8 15.d4 ed4 16.Nd4 Bf7 17.cd5+=; 13...Qe8 14.d4 (14.a5 dc4 15.dc4 Bf5 16.Qc3 Qh5 17.h3+=) 14...Bf5 15.Qd1 ed4 16.Bd4 Be4 17.cd5=) 14.d4 (14.Bc3 Kg8 15.Rfc1 Qd7 16.d4 Bf5 17.Qd1=; 14.Rfd1 Qa5 15.Nb1 Qc7 16.Nc3 Rfd8 17.Ba3=) 14...Bf5 15.Qd1 ed4 16.Bd4 Be4 17.Rc1 =.

12.Qc2 Qe8 13.c4 Qg6 14.Rfd1 Bh3 15.Ne1 c6 16.bc6 bc6 17.cd5 =.

12.Qc2 Re8 13.c4 a6 (13...c6 14.cd5 (14.Rfc1 Rc8 15.d4 Bf5 16.Qd1 Nd7 17.cd5= ; 14.d4 Bf5 15.Qd1 ed4 16.Nd4 Be4 17.cd5=) 14...Nd5 15.Nc4 Nb4 16.Qc3 Be7 17.Qb4+=; 13...Qd7 14.d4 (14.cd5 Nd5 15.Nc4 Nb4 16.Qc3 Bc4 17.Qc4=; 14.Rfd1 a6 15.a5 Kg8 16.ba6 Na6 17.Nb5=) 14...Bf5 15.Qd1 ed4 16.Nd4 Rad8 17.cd5=; 13...Rc8 14.Rfc1 (14.d4 Bf5 15.Qd1 ed4 16.Nd4 Be4 17.cd5= ; 14.Rac1 c6 15.d4 Bf5 16.Qd1 ed4 17.Bd4=) 14...c6 15.d4 Bf5 16.Qd1 Nd7 17.cd5=; 13...Bf5 14.Nh4 Bd7 15.Bh5 Rf8 16.d4 ed4 17.ed4=) 14.d4 (14.cd5 Nd5 15.Nc4 Nb4 16.Qb1 Bc4 17.dc4=) 14...Bf5 15.Qd1 ed4 16.Nd4 Be4 17.ba6 =.

12.Qc2 Bf5 13.Rfd1 Kg8 (13...Nd3 14.Bd3 e4 15.Be4 (15.Qb1 ed3 16.Nd4+= Qd7 17.Nf5+=) 15...Be4 16.Qe2 c6 17.c4+=) 14.Rac1 (14.c4 c6= 15.Nh4 Be6 16.d4 Nd7 17.e4=; 14.Nh4 Be6 15.d4 ed4 16.cd4 Ne4 17.Nf3=; 14.Nd2 c6 15.e4 Bg6 16.Rab1 a6 17.bc6+=) 14...c6 (14...Nd3 worse is 15.Rd3 (15.Bd3 e4 16.Bc4 dc4 17.Nd4+=) 15...e4–/+ 16.c4 ed3 17.Bd3–/+) 15.c4 (15.Nh4 Bd7 16.d4 Ne6 17.c4=) 15...Qd7 (15...Nd3 16.Bd3 (worse is 16.Rd3 e4–/+ 17.Rd2–/+) 16...e4 17.Nd4= (17.Ne1 ed3 18.Nd3=)) 16.bc6 (16.Nh4 Bg4 17.f3 Bf5=) 16...bc6 (16...Nc6!? 17.Nb5+= (17.cd5 Nb4+=)) 17.cd5= cd5 18.Nb5 Rfc8? (better is 18...Nb7=) 19.Nd6+– Qd6 20.Ba3 Nb7 21.Bd6 Rc2 22.Rc2 (22.Be7?! Re2 23.Rc7 Rb2=) 22...Nd6 23.Rdc1 Rb8 (23...Kf7 24.Rc7+–) 24.Rc7 Nec8 25.d4 Ne8 (25...e4 26.Ne1+–) 26.R7c5 (26.de5?! Nc7 27.Rc7 fe5 28.Ne5 Rb1 29.Bf1 h5+–) 26...e4 27.Rd5 ef3 28.Bc4 (28.Bf3?! Ned6+–) 28...Be6 (28...Nb6 29.Rd8 (29.Rf5?! Nc4 30.Rc5 Ned6+/–) 29...Nc4 30.Rb8+–) 29.Rb5 Rb5 30.Be6 (30.ab5?! Bc4 31.Rc4 Ncd6=; 30.Bb5?! Ncd6 31.Be8 Ne8+/–) 30...Kf8 31.ab5 (31.Bc8?! Ra5+–) 31...Ncd6 32.Bd7 Ke7 (32...fg2 33.Kg2 Ke7 34.Be8 Ke8 35.Rc7+–) 33.Bc6 (33.Be8 Ke8 34.Rc7 Kf8+–) 33...Nc7 34.Rc5 (34.gf3 Ndb5 35.Bb5 Nb5+–) 34...fg2 35.Kg2 Ne6 36.Rh5 Nf8 (36...Nc7 37.e4+–) 37.Kg3 g5 (37...g6 38.Rc5+–) 38.Kg4 Nc4 (38...Kf7 39.e4+–) 39.Be4 Nd6 40.Bd3 Kf7 41.f3 (41.h4 gh4 42.Kh4 Ke6+–) 41...Kg7 42.h4 gh4 (42...h6 43.hg5 fg5 44.Rh2+–) 43.Kh4 (43.Rc5 Ng6+–) 43...f5 (43...Nb7 44.Kg4 Ng6 45.Be4+–) 44.Kg3 Kg6 45.Rh2 Ne6 46.Rc2 (46.Ra2 Kf6 47.Ra7 f4 48.Kf2 fe3 49.Ke3 Nf8+–) 46...Kf6 47.Rc6 f4 48.Kg4 Nf7 (48...h5 49.Kh4 Ke7 50.d5+–) 49.Bc4 Nfd8 50.Ra6 fe3 51.d5 h5 52.Kh5 Kf5 (52...e2 53.Be2 Kf5 54.de6 Ne6 55.Bd3 Ke5 56.Be4 Nf4 57.Kg4+–) 53.de6 Kf6 54.Ra7 Ne6 55.Ra6 Ke5 56.Re6 Kd4 57.b6 (better is 57.Ba2 Kc3 58.b6 e2+–) 57...Kc4 58.b7 Kd3 59.b8Q Ke2 60.Qf4 Kf2 61.Qh2 Kf3 62.Kh4 e2 63.Qg3 1–0. NN – SuperConstellation4, 1987.

12.Qc2 Bf5 13.Nh4 A) 13...Bc8 14.c4 (14.d4 Ne6 15.c4 ed4 16.ed4 c5 17.dc5= ) 14...Re8 15.Bh5 g6 16.Be2 Kg7 17.d4=; B) 13...Qd7 14.Nf5 Qf5 15.c4 Qg5 16.a5 Rfe8 17.Bc1+=; C) 13...Qc8 14.Nf5 Qf5 15.c4 d4 16.a5 Qg5 17.f4=; D) 13...Be6 14.c4 (14.d4 Ne4 15.c4 ed4 16.Bd4 c5 17.bc6= ; 14.Nf3 Qd7 15.d4 ed4 16.Nd4 Bf7 17.c4=) 14...Nd7 15.d4 c5 16.cd5 Nd5 17.Nf5=; E) 13...a6 14.Nf5 Nf5 15.d4 Ne4 16.ba6 ba6 17.Bd3+=; F) 13...Bd7= 14.c4 Re8 15.Bh5 g6 16.Bf3 g5 17.cd5=.

12.Qc2 Bg4 13.d4 Bf5 (13...Ne6 14.Ng5 Bf5 15.Ne6 Qc8 16.Qd2 Qe6 17.c4=; 13...Nd7 14.c4 e4 15.Ne1 Be2 16.Qe2 c5 17.cd5=) 14.Qd1 ed4 15.Nd4 Be4 16.c4 Qe8 17.cd5 =.

12.Qc2 Bg4 13.e4 A) 13...c6 14.Rfe1 (14.Rab1 Rb8 15.bc6 bc6 16.ed5 Nd5 17.Nc4= ; 14.bc6 bc6 15.ed5 cd5 16.Nb5 Ne6 17.Rfb1= ; 14.Rfb1 Be6 15.Bc1 Qa5 16.bc6 Nc6 17.ed5=) 14...Be6 15.Nd2 de4 16.de4 Qc7 17.Nac4=; B) 13...de4 14.de4 f5 15.Nc4 fe4 16.Nfe5 Be2 17.Qe2=; C) 13...Qd7 14.Rfd1 (14.Rfe1 Rae8 15.a5 c6 16.bc6 bc6 17.ed5+= ) 14...c6 15.Bc1 Ng6 16.Be3 Rad8 17.bc6=; D) 13...a6 14.ba6 (14.Rfe1 c6 15.ed5 cd5 16.d4 Bf5 17.Qd1= ; 14.Rfd1 c6 15.c4 Qa5 16.ed5 cd5 17.cd5=; 14.ed5 Nd5 15.Nc4 Nf4 16.Nd6 cd6 17.d4+=; 14.c4 c6 15.ed5 cd5 16.d4 ed4 17.Bd4=; 14.Bc1 c6 15.bc6 bc6 16.h3 Bf3 17.Bf3+=; 14.a5 Qd7 15.ed5 ab5 16.d4 ed4 17.Bb5+=; 14.Rfb1 de4 15.de4 f5 16.Nc4 fe4 17.Nfe5+= ) 14...ba6 15.ed5 Nd5 16.d4 ed4 17.cd4=.

12.Qc2 Bg4 13.h3 Bh5 (13...Bf5 14.Nh4 (14.Qd1 Qd7 15.d4 ed4 16.cd4 Ne4 17.Nc2= ; 14.Nd2 c6 15.c4 Be6 16.bc6 Nc6 17.Nb5=) 14...Be6 15.c4 Nd7 16.d4 c5 17.cd5=) 14.d4 (14.Rfd1 Kg8 15.c4 e4 16.de4 de4 17.Nd4=; 14.a5 c6 15.d4 Ne6 16.bc6 bc6 17.a6+=; 14.Rfe1 e4 15.de4 de4 16.Nd4 Be2 17.Re2=; 14.Rae1 a6 15.ba6 Na6 16.Nb5 Nc5 17.Ba3+=) 14...Ne6 15.de5 fe5 16.c4 Bf3 17.Bf3 =.

12.Qc2 Kg8 13.c4 a6 (13...Qd7 14.Rfc1 (14.cd5 Nd5 15.Nc4 Nb4 16.Qc3 Nd5 17.Qa3= ; 14.d4 Bf5 15.Qd1 ed4 16.Bd4 Ne6 17.cd5=) 14...Rad8 15.d4 Bf5 16.Qd1 ed4 17.Bd4+=; 13...c6 14.Rfc1 (14.d4 Bf5 15.Qd1 ed4 16.Nd4 Be4 17.f3=) 14...Rc8 15.d4 ed4 16.Bd4 Qa5 17.bc6=; 13...a5 14.Rac1 (14.d4 Bf5 15.Qd1 ed4 16.Nd4 Bg6 17.cd5+=) 14...Re8 15.d4 ed4 16.Bd4 Bf5 17.Qd1+=; 13...Qe8 14.d4 (14.a5 Qg6 15.d4 Bf5 16.Qd1 ed4 17.Bd4=) 14...Bf5 15.Qd1 ed4 16.Bd4 Be4 17.cd5+=; 13...Rc8 14.Rac1 (14.a5 c6 15.d4 Bf5 16.Qd1 ed4 17.Nd4=; 14.d4 Bf5 15.Qd1 ed4 16.Nd4 Be4 17.cd5=; 14.Rfc1 c6 15.d4 ed4 16.Bd4 Qa5 17.bc6=) 14...Re8 15.d4 ed4 16.Nd4 Bf7 17.cd5+=) 14.cd5 (14.d4 Bf5 15.Qd1 ed4 16.Bd4 Ne6 17.cd5=) 14...Nd5 15.Nc4 ab5 16.ab5 Nb4 17.Qb1 =.

12.Qc2 a6

13.a5 A) 13...Kg8 14.Rfd1 (14.d4 Bf5 15.Qd1 ed4 16.cd4 Ne4 17.ba6= ; 14.ba6 ba6 15.c4 Rb8 16.Rab1 c6 17.Bc3+=; 14.c4 ab5 15.Nb5 dc4 16.d4 Nd3 17.Bd3=) 14...Bf5 15.Nh4 Bd7 16.c4 Ne6 17.cd5=; B) 13...Bd7 14.d4 (14.c4 dc4 15.dc4 Bf5 16.Qc3 Na4 17.Qb3=) 14...Bf5 15.Qd1 ed4 16.Nd4 Be4 17.c4=; C) 13...Qe8 14.d4 Bf5 15.Qd1 Nd3 16.Bd3 Bd3 17.Qd3=; D) 13...Qd7 14.d4 Bf5 15.Qd1 ed4 16.Nd4 Be5 17.Nf5=; E) 13...Bf5 14.Qd1 (14.ba6 Ra6 15.Nb5 Ng6 16.Nd6 cd6 17.Qd1+= ; 14.Nh4 Bd7 15.d4 Ne6 16.ba6 ba6 17.c4=; 14.Nd2 Qd7 15.e4 Be6 16.c4 de4 17.Ne4+=; 14.c4 dc4 15.Nc4 ab5 16.Nd6 cd6 17.e4+=) 14...ab5 15.Nb5 Nc6 16.d4 Ne4 17.de5=; F) 13...Re8 14.d4 Bf5 15.Qd1 ed4 16.Nd4 Be4 17.c4=.

13.ba6 ba6 14.c4 Rb8 15.Rfb1 Bd7 16.a5 Ba4 17.Qc3 –/+.

13.Rfb1 A) 13...Qe8 14.Qd1 (14.Nh4 Nf5 15.Nf3 Qg6 16.d4 Nd7 17.c4+= ; 14.c4 Qg6 15.d4 Bf5 16.Qd1 ed4 17.ed4–/+; 14.Kh1 Qg6 15.c4 ab5 16.ab5 Ra4 17.d4=; 14.Bc1 Qg6 15.d4 Bf5 16.Qd1 Ne4 17.Rb3+=; 14.Rd1 Qg6 15.c4 e4 16.Ne1 ab5 17.ab5+=; 14.Re1 Qg6 15.ba6 ba6 16.d4 Bf5 17.Qd1–/+) 14...Bf5 15.Nh4 Bd7 16.d4 Ne4 17.c4= ; B) 13...Kg8 14.Qd1 (14.ba6 Na6 15.Bc1 Qd7 16.Rb7 Nc5 17.Rb5= ; 14.c4 Re8 15.ba6 Na6 16.Nb5 Nb4 17.Qb3=) 14...Bf5 15.Nh4 Bc8 16.Nf3 Bg4 17.d4=; C) 13...c6 14.bc6 (14.c4 Qa5 15.bc6 bc6 16.Bc3 Qa4 17.Qd2+= ) 14...bc6 15.d4 Nd7 16.Nd2 Qc7 17.h3+=; D) 13...b6 14.Rc1 (14.Qd1 ab5 15.Nb5 Nb7 16.Nd6 Nd6 17.Ba3= ; 14.c4 Qd7 15.d4 Bf5 16.Qd1 ed4 17.ed4=; 14.ba6 c6 15.c4 Na6 16.Bc1 Kg8 17.Bd2+=; 14.Rd1 c6 15.bc6 Qc7 16.a5 ba5 17.c4+=; 14.Re1 c6 15.c4 Bf5 16.Nh4 Bd7 17.d4=) 14...c6 15.d4 Nd7 16.c4 e4 17.Nd2= ; E) 13...Re8 14.ba6 ba6 15.d4 Bf5 16.Qd1 Nd7 17.Nc2+=; F) 13...Bf5 14.Nh4 (14.ba6 ba6 15.Nd2 Bd7 16.a5 c6 17.c4+=; 14.Nd2 Qd7 15.e4 Be6 16.ba6 ba6 17.a5+=) 14...Bc8 15.ba6 b6 16.Nb5 Na6 17.Nd6=; G) 13...Qd7 14.Rd1 (14.Bc1 c6 15.ba6 Na6 16.c4 e4 17.Nd4+=; 14.h3 ab5 15.Nb5 Na4 16.Nd6 cd6 17.Ba3+=; 14.Kh1 Bf5 15.Nh4 e4 16.Nf5 Qf5 17.d4+=; 14.c4 ab5 15.ab5 Rfd8 16.e4 de4 17.de4+=; 14.Ra2 e4 15.Nd4 ed3 16.Bd3 Nd3 17.Qd3+=; 14.Re1 ab5 15.Nb5 Na4 16.Nd6 cd6 17.Reb1+= ; 14.Nd2 ab5 15.ab5 Ra7 16.b6 cb6 17.Nb5+= ; 14.Rf1 ab5 15.ab5 Ra5 16.c4 Rfa8 17.Rfd1+=) 14...Bf5 15.Nh4 Bg4 16.f3 Be6 17.d4+=.

13.c4 A) 13...ab5 14.ab5 Qd7 15.Rfd1 Na4 16.Bc1 Kg8 17.d4=; B) 13...Re8 14.d4 (14.cd5 Nd5 15.Nc4 Nb4 16.Qb1 Bc4 17.dc4= ) 14...Bf5 15.Qd1 ed4 16.Nd4 Be4 17.ba6=; C) 13...Kg8 14.cd5 (14.d4 Bf5 15.Qd1 ed4 16.Bd4 Ne6 17.cd5= ) 14...Nd5 15.Nc4 ab5 16.ab5 Nb4 17.Qb1=; D) 13...Qe8 14.d4 Bf5 15.Qd1 ed4 16.Bd4 Ne4 17.cd5=; E) 13...Bf5 14.Nh4 Bd7 15.d4 ed4 16.ed4 Ne6 17.c5=; F) 13...Qd7 14.d4 (14.Rfc1 ab5 15.ab5 Na4 16.d4 Bf5 17.Qb3= ; 14.Rfd1 Kg8 15.a5 Rfd8 16.ba6 Na6 17.Nb5= ; 14.cd5 Bd5 15.Nc4 ab5 16.ab5 Qb5 17.d4=) 14...Bf5 15.Qd1 ed4 16.Nd4 Be4 17.cd5=; G) 13...Ra7 14.Rfc1 (14.Rfb1 Qd7 15.d4 Bf5 16.Qd1 ed4 17.ed4= ; 14.d4 Bf5 15.Qd1 ed4 16.Bd4 ab5 17.Nb5=; 14.Rfe1 Re8 15.d4 Bf5 16.Qd1 ed4 17.Bd4=) 14...Re8 15.d4 ed4 16.Bd4 b6 17.a5+=; H) 13...c6 14.d4 Bf5 15.Qd1 ed4 16.Bd4 Ne4 17.Qb3=.

13.Qd1 A) 13...Qe8 14.d4 Nd7 15.c4 e4 16.Ne1 c5 17.bc6=; B) 13...Bg4 14.ba6 (14.d4 Ne6 15.c4 e4 16.Nd2 Be2 17.Qe2=; 14.h3 Bh5 15.ba6 ba6 16.d4 Nd7 17.c4+=) 14...ba6 15.d4 Nd7 16.c4 Rb8 17.Bc1=; C) 13...Kg8 14.d4 (14.c4 ab5 15.Nb5 dc4 16.dc4 Nc8 17.Qc2= ; 14.a5 Nd7 15.Qc2 ab5 16.Nb5 Nc6 17.Rfd1+=) 14...Nd7 15.c4 e4 16.Nd2 c5 17.cd5=.

13.d4 Nd7 14.ba6 (14.c4 Bf5 15.Qb3 ed4 16.Nd4 Nc5 17.Qa2=) 14...ba6 15.c4 Bf5 16.Qd2 c6 17.Nh4 =.

13.d4 Bf5 14.Qd1 Ne4 15.c4 ab5 16.ab5 Ba3 17.Ra3 =.

12.Qc2 Qd7

13.a5 A) 13...Rae8 14.Rfb1 (14.Rfd1 a6 15.c4 dc4 16.dc4 Bf5 17.Qc3= ; 14.d4 Bf5 15.Qd1 e4 16.Ne1 Ne6 17.c4=; 14.Rad1 c6 15.c4 Qd8 16.Bc3 Nd7 17.bc6=; 14.Rfc1 Bf5 15.c4 e4 16.de4 de4 17.Nd4=; 14.Nd4 Bg4 15.Nf3 e4 16.de4 de4 17.Nd4+=; 14.Rfe1 c6 15.c4 cb5 16.Nb5 dc4 17.dc4=; 14.Rac1 Bf5 15.c4 Rd8 16.Nh4 Bg4 17.f3=) 14...Bf5 15.Nh4 Bg4 16.f3 Be6 17.d4=; B) 13...Rad8 14.d4 Bf5 15.Qd1 ed4 16.cd4 Ne4 17.Qa4=; C) 13...a6 14.d4 (14.c4 dc4 15.dc4 Bf5 16.Qc3 Qe6 17.Nh4+=) 14...Bf5 15.Qd1 ed4 16.Nd4 Be4 17.c4=; D) 13...c6 14.d4 Bf5 15.Qd1 Ne6 16.Nh4 e4 17.c4=; E) 13...Bf5 14.Nh4 Bg4 15.f3 Be6 16.d4 g5 17.dc5+=.

13.Rfb1 A) 13...a6 14.c4 (14.Bc1 c6 15.c4 cb5 16.ab5 e4 17.de4+= ; 14.h3 ab5 15.Nb5 Na4 16.Nd6 cd6 17.Ba3+=; 14.Rd1 Bf5 15.Nh4 Bg4 16.f3 Be6 17.d4+=; 14.Kh1 Bf5 15.Nh4 e4 16.Nf5 Qf5 17.d4+=; 14.Ra2 Rfe8 15.Raa1 ab5 16.Nb5 Na4 17.Nd6+=; 14.Nd2 ab5 15.Nb5 Na4 16.Nd6 cd6 17.Ba3–/+ ) 14...ab5 15.ab5 Rfd8 16.Rd1 Kg8 17.cd5+=; B) 13...Kg8 14.c4 (14.a5 a6 15.ba6 ba6 16.c4 Rab8 17.cd5= ) 14...Rfd8 15.cd5 Bd5 16.Nc4 e4 17.Ne1=; C) 13...Bf5 14.Nd2 (14.Nh4 Bg4 15.f3 Be6 16.d4 Nf5 17.dc5+= ) 14...Rad8 15.c4 Qe8 16.Nb3 Nb3 17.Qb3=; D) 13...a5 14.c4 Rad8 15.cd5 Nd5 16.Nc4 Nb4 17.Qc3=; E) 13...Rfe8 14.c4 (14.a5 c6 15.c4 Rad8 16.Bc3 e4 17.de4= ) 14...a6 15.cd5 Nd5 16.Bc1 ab5 17.Nb5=; F) 13...Ng6 14.c4 (14.a5 Bf5 15.c4 dc4 16.Nc4 e4 17.Nd6+= ) 14...Rac8 15.Rc1 c6 16.d4 Bf5 17.Qd1=; G) 13...Rfd8 14.a5 (14.c4 c6 15.d4 Bf5 16.Qd1 ed4 17.ed4=) 14...c6 15.c4 cb5 16.Nb5 dc4 17.Nd6=; H) 13...Rad8 14.c4 (14.a5 a6 15.c4 ab5 16.cb5 Ra8 17.Bc3= ) 14...Bf5 15.Nh4 Bg4 16.f3 Bh5 17.d4=; I) 13...Rfc8 14.a5 (14.c4 c6 15.Bc3 cb5 16.Nb5 dc4 17.dc4+= ; 14.Re1 Rd8 15.c4 e4 16.Nd4 Bg4 17.f3+=; 14.Nd2 a6 15.Bc1 Rd8 16.a5 Kg8 17.e4=; 14.Bc1 Rd8 15.a5 Kg8 16.e4 c6 17.Be3=) 14...c6 15.Bc1 e4 16.de4 de4 17.Nd4=; J) 13...Bg4 14.a5 (14.e4 Rae8 15.Rd1 c6 16.bc6 bc6 17.ed5+= ) 14...e4 15.de4 de4 16.Nd4 Be2 17.Qe2+=.

13.Rfc1 A) 13...Bf5 14.Nd2 (14.c4 Rae8 15.a5 e4 16.de4 de4 17.Nd4= ; 14.Qd1 e4 15.Ne1 Rad8 16.d4 Ne6 17.c4=) 14...a6 15.c4 Rfd8 16.Nb3 ab5 17.ab5=; B) 13...Rad8 14.d4 (14.c4 e4 15.Nd4 Bg4 16.f3 ef3 17.gf3+=; 14.a5 Bf5 15.c4 e4 16.de4 de4 17.Nd4+=) 14...Bf5 15.Qd1 Ne4 16.c4 ed4 17.Bd4=; C) 13...Bg4 14.d4 (14.a5 e4 15.de4 de4 16.Nd4 Be2 17.Qe2+=) 14...Bf5 15.Qd1 ed4 16.cd4 Ne4 17.Nc2=; D) 13...Rac8 14.a5 (14.c4 Bf5 15.Nh4 Bg4 16.f3 Bh5 17.d4= ; 14.d4 Bf5 15.Qd1 ed4 16.cd4 Ne4 17.a5=) 14...c6 15.d4 Bf5 16.Qd1 Ne4 17.c4=; E) 13...c6 14.c4 Rac8 15.d4 ed4 16.Bd4 b6 17.cd5=; F) 13...Rfd8 14.d4 (14.c4 e4 15.Nd4 Bg4 16.Bf1 a6 17.cd5+=; 14.a5 a6 15.d4 Bf5 16.Qd1 Ne4 17.c4=) 14...Bf5 15.Qd1 Ne4 16.c4 ed4 17.Nd4=; G) 13...a6 14.d4 (14.c4 ab5 15.ab5 Na4 16.d4 Bf5 17.Qb3= ; 14.Rcb1 Bf5 15.Nh4 e4 16.d4 Nd3 17.c4=) 14...Bf5 15.Qd1 ed4 16.cd4 Ne4 17.a5=.

13.c4= a6 (13...Bf5 14.cd5 (14.Nd2 a6 15.Rfd1 c6 16.b6 a5 17.Rab1+= ; 14.Rfd1 a6 15.Nh4 Bg4 16.f3 Bh5 17.d4=; 14.Rfc1 Rae8 15.a5 e4 16.de4 de4 17.Nd4=; 14.a5 e4 15.de4 Be4 16.Qd1 Rad8 17.Bd4=; 14.Nh4 Bg4 15.f3 Bh5 16.d4 ed4 17.ed4= ; 14.Rfe1 e4 15.de4 de4 16.Nd4 Bg4 17.Red1+=) 14...Nd5 15.e4 Nb4 16.Qc3 Na4 17.Qb3+=) 14.d4 (14.Rfc1 ab5 15.ab5 Na4 16.d4 Bf5 17.Qb3=; 14.Rfd1 Kg8 15.a5 Rfd8 16.ba6 Na6 17.Nb5=) 14...Bf5 15.Qd1 ed4 16.Nd4 Be4 17.cd5 =.

13.Rfd1 A) 13...c6 14.c4 Rad8 15.Rac1 a6 16.b6 Bf5 17.Nh4=; B) 13...Bf5 14.c4 (14.Nh4 Bg4 15.f3 Be6 16.d4 g5 17.dc5+= ; 14.Nd2 Qe8 15.e4 Be6 16.Bf3 de4 17.de4+=) 14...a6 15.Nh4 Bg4 16.f3 Bh5 17.d4=; C) 13...a6 14.c4 (14.Rdb1 ab5 15.Nb5 Na4 16.Nd6 cd6 17.Ba3+= ) 14...ab5 15.ab5 Na4 16.Bc1 Kg8 17.d4=; D) 13...Rad8 14.c4 (14.a5 a6 15.ba6 ba6 16.c4 Nc6 17.cd5+=) 14...c6 15.Rac1 a6 16.b6 Bf5 17.Nh4=; E) 13...Rae8 14.c4 (14.a5 c6 15.c4 Kg8 16.Bc3 Bf5 17.b6= ; 14.Rac1 Bf5 15.c4 a6 16.Nh4 d4 17.Nf5=; 14.Rab1 d4 15.cd4 Bb3 16.Qd2 ed4 17.Nd4=) 14...Rd8 15.cd5 Nd5 16.Nc4 Nb6 17.Nfd2=; F) 13...Rfe8 14.a5 (14.c4 a6 15.a5 Kg8 16.ba6 Na6 17.Nb5=) 14...a6 15.c4 Kg8 16.ba6 Na6 17.Nb5=; G) 13...Kg8 14.c4 (14.a5 Rad8 15.c4 dc4 16.dc4 Bf5 17.Qc3+= ) 14...a6 15.a5 Rfe8 16.ba6 Na6 17.Nb5=.

13.d4 Bf5 (13...ed4 14.Nd4 Bf7 15.c4 Bg6 16.Qd1 Rad8 17.cd5=) 14.Qd1 ed4 15.cd4 Ne4 16.Nc2 c6 17.Ba3 =.

13.Rfe1 A) 13...Bf5 14.Nh4 (14.Nd2 e4 15.de4 Ne4 16.Ne4 Be4 17.Bd3= ; 14.c4 e4 15.de4 de4 16.Nd4 Bg4 17.Rad1+=) 14...e4 15.Nf5 Qf5 16.de4 Ne4 17.Rf1=; B) 13...Rfe8 14.Reb1 (14.c4 e4 15.de4 de4 16.Nd4 Bg4 17.Red1+= ; 14.Red1 Bf5 15.Nh4 Bg4 16.f3 Be6 17.d4+=) 14...Bf5 15.Nd2 e4 16.d4 Nd3 17.c4=; C) 13...a6 14.c4 (14.d4 Bf5 15.Qd1 Ne4 16.c4 Bb4 17.Rf1+= ; 14.Red1 d4 15.cd4 Bb3 16.Qd2 ed4 17.Nd4+=; 14.Rf1 Bf5 15.Nh4 Bg4 16.f3 Be6 17.d4+=; 14.h3 Kg8 15.d4 Bf5 16.Qd1 Ne4 17.c4+=; 14.Reb1 ab5 15.Nb5 Na4 16.Nd6 cd6 17.Ba3+=; 14.Rec1 ab5 15.Nb5 Na4 16.Nd6 cd6 17.Ba3+= ; 14.Nd2 ab5 15.ab5 Ra7 16.Ra2 Na4 17.Nac4+= ) 14...dc4 15.Nc4 ab5 16.ab5 Qb5 17.d4=.

10.d4 e4

11.Nfd2 c5 12.bc6 bc6 13.Ba3+= c5 14.c4 f5 (14...Qc7 15.cd5 Bd5=) 15.dc5 Nc5 16.Nc3 =.

11.Nfd2 c6

12.Ba3 c5= A) 13.Bc5 Nc5 14.dc5 Bc5 15.Nb3 Bd6 16.Nd4=; B) 13.c4 f5 (13...Qc7 14.cd5 Bd5 15.Nc3 f5=) 14.dc5 Nc5 15.Nc3 (15.Bc5 Bc5 16.Nc3+=) 15...Rc8+= ; C) 13.Nb3 b6 14.dc5 bc5 15.Nd4 Bf7 16.h3–/+; D) 13.a5 Qc7 D1) 14.dc5 Nc5 15.Bc5 Qc5+= (15...Bc5 16.Nb3= ); D2) 14.h3 b6 15.c4 f5=; E) 13.dc5 Nc5 14.Bc5 (14.Nb3 Nb3 15.Qb3 Be5+=) 14...Bc5 15.Nb3 Bd6 16.Nd4=.

12.Qb3 A) 12...f5 A1) 13.Ba3 c5 14.c4 Qc7 15.h3 (15.Nc3 Bh2+=) 15...Rac8 16.Nc3+=; A2) 13.c4 Qc7 14.f4 dc4 (14...ef3 15.Nf3 dc4=) 15.Bc4 Nd5 16.a5=; B) 12...c5 13.Ba3 f5 14.dc5 Nc5 15.Bc5 Bc5 16.a5+=.

12.f4 cb5 13.ab5 Nf5 14.Bg4 Nb6 15.Ba3 Ba3+= (15...Qd7 16.Bf5=).

12.f4 c5 A) 13.Na3 Nf5 14.Nc2 cd4 15.cd4 Rc8+= (15...Qc7 16.g4+= ); B) 13.Bg4 f5 14.Be2 g5 15.fg5 Ng6 16.c4–/+; C) 13.a5 a6 (13...Nf5 14.Bg4 Qe7 15.Qe2 Kh8=) 14.ba6 ba6 15.c4 Qc7 16.Nc3+=; D) 13.c4 Rc8 14.a5 Qc7 15.cd5 (15.Qb3 cd4 16.Bd4+=) 15...Nd5=.

12.f4 Rc8 A) 13.c4 c5 14.a5 Qc7 15.cd5 Nd5 16.Bc4=; B) 13.Ba3 Ba3 14.Ra3 (14.Na3 cb5 15.Nb5 a6+=) 14...c5 15.a5 Qc7 16.a6+=; C) 13.bc6 bc6 14.c4 c5 15.cd5 (15.Na3 Nf5+=) 15...Nd5 16.Nc4+=; D) 13.Nb3 Nf5 14.Bg4 (14.Qd2 c5 15.Ba3 c4 16.Nc1–/+) 14...Nb6 15.N1d2 Qe7+=; E) 13.Qb3 c5 14.c4 cd4 15.Bd4 Bc5 16.cd5=.

12.f4 Nf5+= 13.Bg4 Qe7 14.Qe2 (14.Bf5 Bf5 15.c4 Qe6 16.h3+=) 14...Rac8 (14...Kh8 15.Rc1 cb5 (15...Nh6=) 16.ab5=) 15.c4 Rcd8 (15...Nh6 16.Be6 Qe6 17.a5=) 16.Nc3 (16.c5 Bb8+=) 16...Nh6= 17.Bh5 (17.Be6 Qe6 18.Ba3 Ba3 19.Ra3 Nf5=) 17...Nf5 (17...g6 18.c5 Bb8–+ (18...gh5 19.cd6 Qd6 20.Ba3+/–)) 18.Rac1 (18.a5 Bb4=) 18...Bf7 (18...Bb4 19.c5=) 19.bc6 bc6 20.cd5 cd5 21.Bg4 Rb8 (better is 21...Nh6!?=) 22.Nde4+/– Ne3? (better is 22...Nd4 23.ed4 de4 24.Ne4 Rfe8+/–) 23.Nd6+– (23.Qe3?! Rb2 24.Bd7 de4=) 23...Qd6 24.Nb5 (better is 24.Qe3 Rb2 25.Nb5 Rb5 26.ab5+–) 24...Rb5+= 25.ab5 Nf1 26.Qf1 (worse is 26.Kf1 Nb6+=) 26...Nb6 27.Rc6 Qe7 28.Qe2 (28.Bc3 Qe3 29.Qf2 Qc1 30.Be1 Qb1=) 28...Re8 (28...Qb4 29.Bc3 Qb1 30.Qf1 Qf1 31.Kf1=) 29.Qe7+= Re7 30.Kf2 (30.Ba3 Re1 31.Kf2 Re4+/–) 30...Re4 (better is 30...Be8!? 31.Re6 Re6 32.Be6 Kh8+=) 31.Rc7 Be8 32.Ra7 (better is 32.Bf3 Rf4 33.Kg3 Rf3 34.Kf3 Bb5 35.Ra7+/–) 32...Bb5? (better is 32...Nc4 33.b6 Nb6+/–) 33.Rb7+– Nc4 34.Bf3 (34.Rb5 Nb2 35.Rb2 Rf4 36.Bf3 Rd4+–) 34...Rf4? (better is 34...Bc6 35.Rb8 Kf7 36.Be4 de4+–) 35.Rb5 Nb2 36.Rb2 Rd4 37.Ke3 Ra4 (37...Rh4 38.Bd5 Kf8 39.Rb7+–) 38.Bd5 Kf8 39.Rb7 Ra5 (39...Rg4 40.g3+–) 40.Rd7 (40.Kd4 g5+–) 40...Rb5 (40...Ke8 41.Bc6 Rc5 42.Ba4 Re5 43.Kf3+–) 41.Bc6 (better is 41.Kd4!? g5+–) 41...Rb6 (41...Re5 42.Kd4+–) 42.Be4 Rb2 43.Kf3 h6 44.Ke3 g6 45.Bb7 Ke8 46.Rh7 Kd8 47.Bc6 Rb6 48.Bf3 h5 49.Rb7 Re6 50.Kf4 Re1 51.h3 Kc8 52.Rb6 Kd7 53.Rf6 Re6 54.Kg5 Re5 55.Kg6 h4 56.Bg4 Ke8 57.Re6 Re6 58.Be6 (58.Be6 Ke7 59.Bf5+–) 1–0. NN – SuperConstellation4, 1987.

5.a4 Nh6

6.a5 A) 6...Bd6 7.Nf3 (7.c4 dc4 8.Qc2 Qd7 9.Bc4 a6 10.Be6+=; 7.Nc3 0–0 8.Qf3 e4 9.Qh5 Nf5 10.Nh3+=; 7.Qh5 Nf7 8.Nc3 a6 9.e4 d4 10.Nd1–/+; 7.d4 0–0 8.de5 fe5 9.Nf3 e4 10.Nd4+=) 7...0–0 8.c4 c6 9.cd5 cd5 10.Nc3+=; B) 6...Bb4 7.Ra4 (7.Nf3 a6 8.c3 Bd6 9.ba6 Na6 10.Be2+=; 7.Qh5 Nf7 8.Nf3 a6 9.Qh4 Be7 10.ba6+=; 7.Be2 a6 8.Ra4 Be7 9.ba6 Na6 10.Nf3+=; 7.Nc3 a6 8.Qh5 Nf7 9.ba6 Na6 10.f4–/+) 7...c5 8.Bc3 Bc3 9.Nc3 0–0 10.Nf3+=.

6.Nc3 A) 6...Bd6 7.d4 (7.Be2 c5 8.Bf3 e4 9.Bh5 Nf7 10.d3+=; 7.a5 0–0 8.Qf3 e4 9.Qh5 Bf7 10.Qh4+=; 7.Qh5 Nf7 8.a5 a6 9.e4 d4 10.Nd1–/+; 7.Nf3 0–0 8.Be2 c5 9.0–0 a6 10.ba6+=) 7...e4 8.Ba3 0–0 9.Nge2 Ba3 10.Ra3=; B) 6...Bb4 7.Be2 (7.Ba3 Ba3 8.Ra3 Qe7 9.Ra1 d4 10.Nce2+=; 7.Bd3 0–0 8.Nge2 Re8 9.Ng3 c5 10.Be2+=; 7.Nf3 c5 8.bc6 Nc6 9.Bb5 a6 10.Be2+=; 7.Qh5 Nf7 8.Nf3 c5 9.bc6 Nc6 10.Be2+=) 7...d4 8.ed4 ed4 9.Na2 Bc5 10.Bf3=; C) 6...Nf5 7.Bd3 (7.a5 Bb4 8.Bd3 e4 9.Be2 a6 10.Ra4+=; 7.Qh5 g6 8.Qf3 Bb4 9.a5 a6 10.Ra4+=; 7.Nge2 Bd6 8.e4 de4 9.Ne4 a6 10.N2g3+=; 7.e4 de4 8.Ne4 Bb4 9.Qh5 g6 10.Qe2+=) 7...e4 8.Be2 Nh4 9.Bg4 f5 10.Bh5=; D) 6...a6 7.d4 (7.Be2 Nf5 8.e4 de4 9.Ne4 Nh4 10.Bh5+=; 7.Qh5 g6 8.Qe2 Nd7 9.Nf3 ab5 10.ab5+=; 7.Nf3 Nf5 8.e4 de4 9.Ne4 ab5 10.Bb5=; 7.Qe2 Nd7 8.Nf3 Bd6 9.ba6 Ra6 10.Qd1+=) 7...e4 8.Nge2 Bd6 9.Ba3 Ba3 10.Ra3=; E) 6...Be7 7.d4 (7.Nf3 c5 8.bc6 Nc6 9.Be2 e4 10.Ng1+=; 7.Qh5 Nf7 8.Nf3 c5 9.bc6 Nc6 10.Bb5+=; 7.Bd3 0–0 8.Nge2 c5 9.bc6 Nc6 10.0–0+=; 7.a5 a6 8.d4 0–0 9.de5 fe5 10.Nf3–/+) 7...0–0 8.de5 fe5 9.Nf3 Nf7 10.Be2+=.

6.d3 Nd7 (6...Bd6 7.Nf3 (7.Be2 a6 8.Nf3 ab5 9.ab5 Ra1 10.Ba1+=; 7.Qh5 Nf7 8.Be2 g6 9.Qh4 Nd7 10.Nc3+=) 7...Nd7 8.Be2 a6 9.0–0 ab5 10.ab5=; 6...Bb4 7.c3 Bd6 8.Nf3 a6 9.Be2 ab5 10.ab5+=; 6...a6 7.Nf3 (7.d4 Bb4 8.c3 Bd6 9.Ba3 0–0 10.Nf3+=; 7.Be2 ab5 8.ab5 Ra1 9.Ba1 Bb4 10.c3+=; 7.Nd2 Bd6 8.d4 Nd7 9.c4 dc4 10.Bc4+=; 7.Qh5 Nf7 8.Be2 g6 9.Qf3 Bb4 10.Nd2+=) 7...Qd7 8.d4 e4 9.Nfd2 Nf5 10.Ba3+=; 6...Nf5 7.Nf3 (7.Be2; 7.d4) 7...Bd6 8.Be2 0–0 9.0–0 Qd7 10.c4=; 6...Be7 7.d4 (7.Nf3 Nf7 8.Be2 0–0 9.0–0 Nd6 10.Ba3+=; 7.Be2 a6 8.Nf3 ab5 9.ab5 Ra1 10.Ba1+=; 7.Qh5; 7.a5) 7...0–0 8.de5 fe5 9.Be5 Ng4 10.Bg3=) 7.d4 (7.Nf3 Bd6 8.Be2 a6 9.0–0 ab5 10.ab5+=; 7.Be2 Bd6 8.Nf3 a6 9.Nc3 0–0 10.0–0+=) 7...Bd6 (7...Bb4 8.Bc3 Bd6 9.de5 fe5 10.a5+=) 8.Ba3 (8.a5 a6 9.Ba3 Ba3 10.Na3+=) 8...0–0 (8...Ba3 9.Ra3 0–0 10.Nf3+=) 9.Bd6= cd6 10.Na3 (10.a5 Rc8=) 10...Qa5+= 11.Qd2 Qd2 12.Kd2 Rac8 13.h3 f5 14.Nf3 f4 15.Be2 (15.Ng5 fe3 16.fe3 Bf7=) 15...fe3+= 16.fe3 Nf6 (16...Nf7 17.Rhf1+=) 17.Ng5 (17.de5 Ne4 18.Kc1 de5 19.Ne5 Nf5=) 17...Bf5 18.c3 (18.Rhf1 Be4 19.g4 Bg2=) 18...Ne4 19.Ne4 Be4 (worse is 19...de4 20.Bc4 Kh8 21.Bd5+/–) 20.Rhg1 Nf5 (20...Rf2!?–/+) 21.g4= Nh4 22.Raf1 Bg2 23.Rf8 Rf8 24.Nc2 (24.b6 ab6 25.c4 Ra8–/+) 24...e4 (24...Bh3 25.c4 Bg2–/+) 25.Kc1? (better is 25.Kd1!?=) 25...Rf2–/+ (25...Bh3? 26.Rh1 Bg4 27.Bg4+–) 26.Kd1 (26.Bd1 Nf3 (26...Bh3 27.Rh1+/–) 27.Rg2 Rg2–/+) 26...Nf3–+ (26...Bh3?! 27.Nb4 Nf3 28.Rg3+=) 27.Bf3 ef3 0–1. Wennerstroem,Rainer – Virtanen,Kauko, corr FIN–Cup1, 1977.

6.d4 Bb4 7.c3 (7.Bc3 Bd6 8.de5 fe5 9.Nf3 Qf6 10.Nbd2+=; 7.Nd2 Nd7 8.a5 a6 9.de5 Ne5 10.c3+=; 7.Nc3 0–0 8.Nf3 Nf5 9.Be2 c5 10.0–0–/+) 7...Bd6 8.Ba3 0–0 9.Nf3 Nf5 10.Qb3 +=.

6.d4 Bd6 7.de5 (7.Ba3; 7.Nc3; 7.Qh5; 7.a5) 7...fe5 8.Nf3 Nd7 9.c4 dc4 10.Qc2 =.

6.d4 Nd7 7.Nf3 (7.a5 a6 8.de5 Ne5 9.ba6 ba6 10.Be2+=; 7.de5 Ne5 8.a5 a6 9.ba6 ba6 10.Be2+=; 7.Nd2) 7...e4 8.Nfd2 Bb4 9.c4 c6 10.Qb3 =.

6.d4 e4 7.Nd2 Bb4 8.Rc1 0–0 9.c4 c6 10.Bc3 Bd6 11.c5 Bc7 12.Qb3 Qc8 13.a5 a6 14.b6 Bd8 15.Ne2 f5 16.f4 ½–½. Kalanyos,Ferenc (2005) – Csikos,Gergo (2080), HUN–chT2 Asztalos, 2005.

6.d4 e4 7.Ne2 Bd6 8.Ba3 a6 9.Bd6 Qd6 10.Nf4 =.

6.d4 Nf7 7.de5 (7.Nd2; 7.a5; 7.Be2; 7.Ba3) 7...fe5 8.Nf3 Bd6 9.c4 0–0 10.cd5 =.

6.Be2 A) 6...c5 7.d3 (7.Nc3 Bd6 8.Bf3 e4 9.Bh5 Nf7 10.d3+=; 7.bc6 Nc6 8.Nf3 Bd6 9.0–0 Rc8 10.Nc3+=; 7.a5 Bd6 8.c4 0–0 9.Qc2 a6 10.cd5+=; 7.d4 cd4 8.ed4 Bb4 9.Nd2 Nd7 10.de5+=) 7...Bd6 8.e4 Qd7 9.ed5 Bd5 10.Nf3=; B) 6...e4 7.d3 (7.Nc3; 7.a5) 7...Nd7 8.de4 de4 9.a5 Nc5 10.Qd8=; C) 6...Bd6 7.Nf3 (7.d3 0–0 8.Nf3 Qe8 9.0–0 Qg6 10.Ba3+=; 7.Nc3 0–0 8.Nf3 c5 9.0–0 a6 10.ba6+=; 7.Ba3 c5 8.d4 Nd7 9.dc5 Nc5 10.Nf3+=; 7.a5 a6 8.ba6 Na6 9.Nf3 0–0 10.0–0+=) 7...0–0 8.0–0 Nf5 9.d3 Qd7 10.c4= 9; D) 6...Nf5 7.d3 (7.d4 Bb4 8.c3 Bd6 9.Ba3 0–0 10.Nf3+=; 7.a5 a6 8.f4 ef4 9.ef4 Bc5 10.g4+=; 7.Bg4 Nd7 8.Nh3 g6 9.0–0 h5 10.Be2+=; 7.Nf3 Bd6 8.0–0 e4 9.Ne1 0–0 10.Nc3+=) 7...Nd7 8.Nf3 Bd6 9.c4 c6 10.0–0=; E) 6...a6 7.Nf3 (7.Nc3 Nf5 8.Nh3 d4 9.Ne4 Nh4 10.0–0+=; 7.d4 ab5 8.ab5 Ra1 9.Ba1 Bb4 10.Bc3+=; 7.Na3 c5 8.ba6 ba6 9.Rb1 Bd6 10.c4+=; 7.Bh5 Nf7 8.Be2 Bd6 9.Nc3 0–0 10.Nf3+=) 7...ab5 8.ab5 Ra1 9.Ba1 Bd6 10.0–0+=.

6.Nf3 a6 7.Nc3 (7.Be2 ab5 8.ab5 Ra1 9.Ba1 Bd6 10.0–0+=; 7.Bd3 Nf5 8.e4 de4 9.Be4 Nd6 10.Nc3+=) 7...Nf5 8.e4 de4 9.Ne4 Bb4 10.Bd3 =.

6.Nf3 Bd6 7.c4 (7.Be2 0–0 8.0–0 c5 9.a5 Bc7 10.Ba3–/+; 7.Nc3 c5 8.bc6 Nc6 9.Nb5 Bb4 10.Be2+=; 7.Ba3 c5 8.bc6 Nc6 9.Bb5 0–0 10.0–0+=) 7...dc4 8.Qc2 Qe7 9.Bc4 Bc4 10.Qc4 =.

6.Nf3 Nf5 7.d4 (7.d3 a6 8.Be2 Qd7 9.Nbd2 Bb4 10.c3=; 7.Be2 Bd6 8.0–0 e4 9.Ne1 c5 10.Nc3+=) 7...e4 8.Nfd2 a6 9.c4 dc4 10.Qc2 =.

6.Nf3 g5 7.h3 (7.Be2; 7.Nc3; 7.d4; 7.a5) 7...Bd6 8.c4 dc4 9.Qc2 a6 10.Bc4 =.

6.Bd3 Bd6

7.a5 a6 8.Nc3 ab5 9.Nb5 Bc5 10.Bc3 –/+.

7.Nc3 0–0 8.Nf3 c5 9.bc6 Nc6 10.Nb5 +=.

7.Be2 Nf7 8.Nf3 c5 9.0–0 0–0 10.d3 +=.

7.Ne2 Nd7 8.0–0 Nc5 9.Ba3 Qd7 10.Bc5 +=.

7.Nf3 c5 8.e4 c4 9.ed5 Bd5 10.Be2 +=.

7.h4 0–0 8.h5 Nd7 9.Ra3? Ba3–+ 10.Na3 e4 11.Be2 Nc5 12.a5 Qe7 13.Qa1 a6 14.b6 cb6 15.ab6 Na4 16.Bd4 Nf5 17.h6 g6 18.Bb2 Nb6 19.Nh3 Nd6 20.Nb1 Nbc4 21.Bc3 Bh3 22.gh3 b5 23.Rg1 a5 24.h4 b4 25.Bd4 Ne5 26.Rg3 Rfc8 27.c3 b3 28.f4 ef3! 29.Bf3 Nf3 30.Rf3 Ne4 31.d3 f5 32.de4 Qh4 33.Ke2 de4 34.Rf2 Qh5 35.Kd2 Qh6 36.c4? Rc4 37.Nc3 Rd8 38.Ke2 Qh5 39.Ke1 Rdd4 40.ed4 Qh3 41.Ne2 e3 42.Rf1 Qg4 43.Qb2 a4 44.Rg1 Qe4 45.Nc3 Qc2 (45...Qc2 46.Qc2 bc2–+) 0–1. xtom – bvulle (1750), internet, 2011.

6.Nf3 c5

7.a5 e4 8.Ng1 Bd6 9.d3 0–0 10.de4 =.

7.Nc3 Bd6 8.Be2 e4 9.Ng1 0–0 10.d3 +=.

7.bc6 Nc6 8.Bb5 Bd6 9.Ba3 0–0 10.0–0 +=.

7.bc6 Nc6 8.Be2 Rc8 9.0–0 Be7 10.Na3 0–0 11.c4 Na5 12.d3 dc4 13.Nc4 Nc4 14.dc4 Qa5 15.Qc2 Rc7 16.Bc3 Qc5 17.Nd2 Rd7 18.Ne4 Qc7 19.Nd2 Rfd8 20.Rfc1 Nf5 21.Qb2 Nh4 22.g3 Nf5 23.Rab1 Qc6 24.c5 Ne3 (better is 24...a6!?+=) 25.fe3+= Bc5 26.Nf1 Qe4 27.Bb5 Rc7 28.Ba5 Be3 29.Ne3 Qe3 (29...Qe3 30.Kg2 Rc1 31.Rc1 b6–/+) 0–1. Garcia Roman,Jose Luis Machado (2030) – Dolezal,Cristian (2400), Albacete op, 2009.

7.d3 Bd6 8.Be2 a6 9.0–0 0–0 10.c4 +=.

7.d4 cd4 8.ed4 e4 9.Nfd2 Nf5 10.c4 +=.

5.Nc3 Bb4

6.Be2 Ne7 7.Nf3 Nd7 8.0–0 0–0 9.a3 Bc3 (9...Bd6 10.Re1+=) 10.Bc3= e4 (10...c5!?=) 11.Nd4+= Bf7 12.Nb3 f5 13.Qb1 Bg6 14.Qb2 Rf7 15.Na5 Qc8 16.Rab1 Nb6 17.Qb3 f4 18.ef4 Rf4 19.f3 ef3 20.Bf3 Bf7 (20...Rf7 21.Bb4+=) 21.Be5+/– Rf5 (21...Ra4 22.Qc3+/–) 22.Rfe1 Nc4 (22...Be6 23.Qc3 Rf7 24.Qc7+/–) 23.Nc4+– dc4 24.Qb2 Be6 25.Bg7 Rf7 26.Bf6 Nd5 27.Bg5 (27.Bd5 Bd5 28.Qe5 Rf6 29.Qf6 Qg4+–) 27...c6 28.bc6 bc6 29.Bh5 Rg7 30.Qe5 a5 (30...c3+–) 31.Bh6 Re7 32.Qg5 Kh8 33.Bg4! (33.Bg4 Qc7 34.Re6+–) 1–0. De Brus,Raoul – Scellier,Marcel, corr AJEC/2390, 1992.

6.Nge2 Nh6 7.a3 Bd6 8.Ng3 c5 9.a4 Nd7 10.Qh5 Bf7 11.Qh3 0–0 12.Nce2 (12.Be2 Qe8+=) 12...d4 (12...c4 13.a5–/+) 13.Ne4 Bc7 14.Nc5? (better is 14.N2g3+=) 14...Nc5–+ 15.d3?? (15.ed4 Ba5 16.Bc3 ed4 17.Bd4–+) 15...Ba5 16.Kd1 Nd3! 17.cd3 Bb3 (17...Bb3 18.Kc1 Qc7 19.Bc3 Bc3–+) 0–1. Baer,Cy (1895) – Rheindt,Stefan (2015), RSS5E easy–36, 2007.

6.Qh5 g6

7.Qh4 Ba5 8.Nf3 Nd7 9.Be2 Ne7 10.0–0 0–0 11.Qa4 c5 12.bc6 Nc6 13.d4 (13.a3 Nb6 14.Qb5 Bf5=) 13...e4 (13...Rc8 14.Qb3+=) 14.Nd2= a6 (14...Rc8 15.f3 Nce5 16.Qb3=) 15.Qb3 b5 (15...Qb6!?=) 16.Nde4+/– Nb6 (16...de4 Exploits the pin 17.Qe6 Theme: Double Attack) 17.Nc5 Qe7 18.a4 Nc4? (better is 18...b4 19.N3e4 Nd7+/–) 19.ab5+– (19.Ne6?! Qe6 20.ab5 ab5+/–) 19...ab5 20.Qb5 (20.Nb5?! Nd2 21.Qa4 Nf1 22.Bf1 Rfc8+=; 20.Ne6?! Qe6 21.Bf3 Bc3 22.Bc3 Ra1 23.Ra1 Rb8+–) 20...Qd6?! (20...Na7 21.Qb3 Bc3 22.Qc3 Nb5+–) 21.Ne6 Rfb8 22.Qd5 Qd5 23.Nd5 Nb2 24.Rfb1 Kf7 25.Nc5 Ne7 (25...Ra7 26.c4+–) 26.Ne7 Ke7 27.Bf3 Ra7 28.Nd3 (28.Nd3 h6 29.Nb2+–) 1–0. Preuss,Guenter – Diener,Rudolf, corr 3GMMsemi–08, 1999.

7.Qh4 Bc3 8.Bc3 Nd7 9.d4 Ne7 10.e4 0–0 11.Nf3 de4 12.Qe4 Bd5 13.Qe2 ed4 14.Nd4 Re8 15.Qd2 c5 16.Ne2 a6 17.a4 ab5 18.ab5 Ra1 19.Ba1 Qa8 20.Bc3 Qa4 21.Nf4 c4 22.Be2 Qb5 23.0–0 g5 24.Bh5 Bf7 25.Bf7 Kf7 26.Rd1 Rd8 27.Nh5 Ng8?? 28.Qd6+– Qf5 29.Qc7 Qg4? 30.f3 Qh5 31.Qd8 Nf8 32.Bb4 Kg7 33.Bf8 Kh8 34.Rd7 Qg6 35.Qc7 h5 36.Rg7 Ne7 (36...Qf7 37.Qf7 c3 38.Qg8#) 1–0. Bestia02c – Crux036b, computer chess game, 2000.

7.Qh4 Qe7 8.e4 d4 9.Nd1 =+.

5.Nc3 Bd6

6.d4 e4 7.f3 f5 8.fe4 fe4 9.Nge2 Nf6 10.Ng3? 0–0 11.a4? Ng4 12.Qd2 Nh2! 13.Nge2 Ng4 14.0–0–0?? Nf2 15.Ne4 de4 16.Nf4 Bf4 17.Qf2 Bh6 18.Qg3 Qg5 19.Qg5 Bg5 20.Kd2 c6 21.Be2 a6 22.Rdf1 Nd7 23.c4 ab5 24.d5 cd5 25.cd5 Bd5 26.Bb5 Nf6 27.Bf6?? Bf6 28.Rh5 Bf7 29.Rhf5 Be6 30.R5f4 Bd5 31.Rc1 Rac8 32.Rc8 Rc8 33.g3 h6 34.g4 Bc3 35.Ke2 Bc4 36.Bc4 Rc4 37.Kd1 Ra4 38.Kc2 Bf6 39.Kb3 b5 40.Rf5 Ra1 41.Rb5 Rb1 42.Kc4 Rb5 43.Kb5 Kf7 44.Kc4 Ke6 45.Kc5 Ke5 46.Kc4 Bg5 47.Kc3 g6 48.Kd2 h5 49.gh5 gh5 50.Ke2 h4 51.Kf2 h3 52.Kg3 Be3 53.Kh3 Kd4 54.Kg3 Kd3 (54...Kd3 55.Kg2 Bd4 56.Kg3 e3 57.Kf3 e2 58.Kg3 e1Q 59.Kg4 Qe6 60.Kf4 Qg6 61.Kf3 Qe4 62.Kg3 Be5 63.Kf2 Bh2 64.Kf1 Qe2) 0–1. j1a9n55 – rb59, internet, 2011.

6.d4 Ne7 7.e4 ed4 8.Qd4 c5 9.Qd3 d4 10.Nb1 0–0 11.Nd2 a6 12.Ngf3 ab5 13.Qb5 Qd7 14.Nb3 f5 15.e5 Qb5 16.Bb5 Bc7 17.Nc5 Bd5 18.e6 Bf3 19.gf3 Bd6 20.Bd4 Nec6 21.Be3 Bc5 22.Bc5 Rc8 23.a4 Ne5 24.0–0–0 Nf3 25.e7 Nc6 26.Bc6 bc6 27.Rd3 Ne5 28.Rd4 Re8 29.Rhd1 g6 30.Rd8 Nf7 31.Ra8 Ra8 32.Re1 Re8 33.Re6 Kg7 34.Bd4 Kh6 35.Bc5 Ng5?? 36.Rf6+– Ne4 37.Rf8 Re7 38.Be7 Nf2 39.a5 Nh3 40.a6 Nf4 41.a7 Nd5 42.a8Q Ne7 43.c4 g5 44.Rf6 Kh5 45.Qb7 h6 46.Qe7 Kg4 47.Qe2 Kf4 48.Qe6 Kf3 49.Rf5 Kg2 50.Qe4 Kh2 51.Rf2 Kg3 52.Qf3 Kh4 53.Rh2# 1–0. Bestia02c – DChess102, computer chess game, 2000.

6.Be2 c5 7.bc6 Nc6 8.Bh5 g6 9.Bg4 (9.Be2 Nh6 (9...Nge7 10.Nb5 Bc5 11.Nf3 a6 12.Nc3 0–0=+; 9...Rc8 10.Nf3 e4 11.Ng1 Nge7 12.f3 Be5=; 9...Rb8; 9...h6) 10.Nb5 Be7 11.Nf3 a6 12.Nc3 b5=+) 9...f5 (9...Qd7 10.Be6 Qe6 11.Nge2 Rc8 12.0–0 Nge7=; 9...Bg4 10.Qg4 f5 11.Qa4 Nge7 12.Qb3 Qa5=; 9...Bf7 10.Be2 Nge7 11.Nb5 Bc5 12.Nf3 a6=; 9...Qe7 10.Bf3 Qf7 11.Rb1 Rc8 12.Be2 Nh6=+) 10.Be2 Rc8 (10...a6 11.Nf3 g5 12.h3 Rc8=+) 11.Nf3 a6 12.Rb1 (12.0–0 g5=+) 12...g5 (12...d4–/+) 13.h4 gh4 (13...g4 14.Ng5 Bd7 15.Nd5=+) 14.a3 (14.Nh4 Nf6 15.Bd3 e4=+) 14…b5=+.

6.Nf3 Ne7

7.a4 c5 8.d4 cd4 9.ed4 e4 10.Nh4 (better is 10.Nd2–/+) 10...g5–+ 11.Qh5 (11.f3 e3–+) 11...Bf7 12.Qh6 gh4 13.Qg7 (13.Qf6 Rf8 14.Qh4–+) 13...Ng6 14.0–0–0 (14.Qh6–+) 14...Bf8 15.Qh8 Nh8 16.g3 (16.f3 f5–+) 16...Bh5 17.Rd2 (17.Be2 Be2 18.Ne2 a6–+) 17...Bh6 18.f4 (18.Be2 Be2 19.Ne2 Bd2 20.Kd2 Nd7–+) 18...ef3 19.g4 Bg4 20.Rg1 f5 (better is 20...Qe7 21.Kb1 Bd2 22.Nd5 Qe1 23.Ka2–+) 21.h3 Qg5 22.hg4 Qd2 23.Kb1 Qh2 24.Nd5 Qg1 25.Nc7 Kd7 (better is 25...Kf7 26.Ka2 Qf1–+) 26.Na8 Qf1 27.Ka2 Qc4 28.Kb1 f2 29.d5 f1Q 0–1. MasterofDisaster – orane (2035), Live Game Caissa's Web, 2004.

7.Be2 0–0 8.0–0 Qe8 9.a4 Qg6 (9...a6 10.ba6 (10.Ba3 Ba3 11.Ra3 ab5 12.Nb5 Qd7 13.d4; 10.Nh4 Qd7 11.Nf3 c5 12.a5 e4 13.Ne1; 10.a5 Qg6 11.Ba3 Ba3 12.Ra3 ab5 13.Nb5; 10.Kh1 Qg6 11.Ba3 Ba3 12.Ra3 c5 13.d4) 10...Na6 11.Nb5 Bb4 12.c3 Ba5 13.Ba3; 9...c5 10.bc6 (10.a5 Qg6 11.d3 Rd8 12.Re1 a6 13.d4; 10.d3 Qg6 11.a5 a6 12.Qd2 Bh3 13.Ne1) 10...Nbc6 11.Nb5 Bb8 12.Ba3 Qg6 13.Rb1) 10.Ba3 (10.a5 a6 11.Ba3 Ba3 12.Ra3 ab5 13.Nb5; 10.d3 e4 11.Ne1 Qh6 12.g3 Be5 13.Rb1) 10...Ba3 11.Ra3 c5 12.Nh4 Qh6 13.Nf3 e4 14.Ne1 f5=+.

6.Qh5 Bf7

7.Qg4 g6 8.Qf3 c6 9.bc6 bc6 10.e4 d4 11.Nd1 Nd7 12.c3 c5 13.Bb5 (13.Ba3 Rb8+=) 13...a6 14.Ba4 Qa5 (14...Rb8!?=) 15.Bd7+= Kd7 16.Ne2 h5 (16...Be6 17.0–0+=) 17.0–0 (17.d3 h4+=) 17...Ke7 (17...h4 18.Nc1=) 18.Qh3 (18.Nc1 h4 19.Nb3 Qb5=) 18...g5 (18...Be6 19.Qg3 Kf7 20.f4 (worse is 20.cd4 cd4 21.f4 h4+=) 20...ef4 21.Nf4+= (worse is 21.Rf4 Rd8–/+)) 19.Qf3 (19.a3 Be6 20.Qf3 g4–+) 19...h4= 20.a3 (20.h3 Kf8=) 20...Qb5 (20...Bh5!? 21.Qd3 Qa4 22.cd4 ed4 23.Nd4 cd4 24.Bd4 Qb5–/+) 21.a4= (21.cd4? Bh5 22.de5 Bf3 23.ed6 Kd6–+) 21...Qd7 (21...Qb3 22.Re1=) 22.cd4 cd4 (22...g4 23.Qd3 ed4 24.f3=) 23.Nd4 Be6? (23...ed4 24.e5 Discovered attack) 24.Ne6+– Qe6 25.Ne3 Nh6 (25...h3 26.g3+–) 26.h3 Rab8 27.Rab1 Rb3 (27...Kf7 28.d4+–) 28.Bc3 Rhb8 29.Rb3 Rb3 30.Qh5 Nf7 31.Qg6 Kd7 32.Nf5 (32.Ng4 Ke7+–) 32...Bc5 (32...Ba3+–) 33.Ng7 Qe7 34.Qf5 Kd6 (34...Kc7 35.Ne6 Kb8 36.Nc5 Qc5 37.Qf6 Rb7 38.Qa6 Nd6+–) 35.Qc8 Qd7 36.Nf5 (36.Nf5 Qf5 37.ef5 Bf2 38.Kf2+–) 1–0. Trkn – celina (2045), ICC, 2004.

7.Qg4 g6 8.Qf3 e4 9.Qg4 Be5 10.0–0–0 f5 11.Qe2 Nf6 12.f4 Bd6 13.d3 Qe7 14.de4 de4 15.Nh3 h6 16.g4 Rg8 17.g5 Ng4 18.gh6 Nh6 19.Ng5 Nd7 20.Nf7 Nf7 21.Nd5 Qh4 22.Qc4 Rc8 23.Nf6 Nf6 24.Qe6 Be7 25.Bc4 Rg7 26.Qc8 Nd8 27.Rhg1 Bd6 28.b6 ab6 29.Rd6 cd6 30.Bb5 Nd7 31.Bg7 Qf2 1–0. vapujara (2055) – kunde (2030), FICS rated standard game, 2013.

6.Qh5 g6

7.Qf3 e4

8.Qd1 Nd7 9.d3 Nc5 10.de4 Ne4 11.Ne4 de4 12.Qd4 Bf5=.

8.Qd1 Nd7 9.d3 Be5 10.f4 ef3 11.Nf3 Qe7 12.Rb1 Nh6=.

8.Qd1 Nd7 9.d3 Be5 10.f4 ef3 11.Nf3 Qe7 12.Rb1 Nh6.

8.Qd1 Qe7 A) 9.f3 Be5 (9...Bf7 10.g3 Nd7 11.Bg2 Nc5 12.Nge2 h5=+) 10.Rb1 f5 11.f4 Bg7 12.Nh3 Nf6=+; B) 9.d3 Be5 (9...ed3 10.Qd3 c6 11.Nf3 Nd7 12.Nd4 a6=) 10.Rb1 Nd7 11.f4 ef3 12.Nf3 Nh6=.

8.Ne4 de4 9.Qe4 Kf7 10.Nf3 Nh6 11.Nd4 Bc8 12.Bc4 Kf8 13.Bd5 c6 14.bc6 bc6 15.Bc6 Nc6 16.Nc6 (16.Qc6?! Rb8 17.Qc3 Qd7=) 16...Bb7 17.Qe6 (worse is 17.Nd8 Be4 18.Bf6 Bg2+=) 17...Qc7 18.Qf6 Nf7 19.Nd4 Qe7 20.Nb5 Qf6 (20...Bg2? A) 21.Nd6?! A1) 21...Qd6?? 22.Qd6 Nd6 23.Rg1+– (23.Bh8?! Bh1 24.Ke2 Ke7+=); A2) 21...Qf6 22.Bf6 A21) 22...Nd6?? 23.Rg1+– (23.Bh8?! Bh1 24.Ke2 Ke7=); A22) 22...Bh1=; B) 21.Rg1 Bh2 22.Rg2+–) 21.Bf6 Rg8 22.f3 Rc8 23.Na7 Rc2 24.Bc3 Bd5 25.a4 Be5 26.Nb5 h6 27.e4 Bc3 (27...Bc4 28.Kd1 Bc3 29.Kc2 (29.dc3 Rg2 30.f4 g5–+; 29.Nc3?! Rb2+–) 29...Ba1 30.Ra1+–) 28.Nc3+– (28.dc3?! Bc4 29.Na3 Rc3+/–) 28...Bc4 29.Kd1 Bb3 30.Ke2 Kg7 31.Rhb1 Rb8 32.f4 (32.a5 Ne5 33.Nd5 Bc4 34.Kd1 Rb1 35.Rb1 Ra2 36.Rb7 Nf7+/–) 32...g5 33.g3 gf4 34.gf4 Bc4 35.Kd1 Rb1? (35...Rcb2 36.Rb2 Rb2+–) 36.Rb1 Bd3 37.Rb6 (37.Rb4!? Nd6+–) 37...Rc3 38.dc3 Be4 39.a5 Nd8 40.a6 Kf7 (40...Nc6 41.Rb7 Kf6 42.a7 Na7 43.Ra7+–) 41.Rh6 Ne6 42.Kd2 Nc7 43.Ke3 Bg6 44.a7 Kg7 45.Rg6! Kg6 46.c4 Kf5 47.Kd4 Ke6 48.Kc5 Kd7 49.h4 1–0. Von Saleski,Marcel – Signorin,Luca, R2.2001.0.006, 2001.

5.Nc3 Nd7

6.Be2 d4 7.ed4 ed4 8.Ne4 Ne5 9.Nf3 d3 10.cd3 (10.Bd3 Nd3 11.cd3 Qd3 12.Qe2 Qe2 13.Ke2 Bc4=+; 10.Bf1 Qd5 (10...dc2 11.Qc2 Nf3 12.gf3 f5 13.Nc5 Bd5=+; 10...Nf3 11.Qf3 dc2 12.Nc3 Rb8 13.Bd3 Ne7=) 11.cd3 Nd3 12.Bd3 Qd3 13.Qe2 Qe2=+) 10...Nd3 11.Bd3 Qd3 12.Qe2 Qe2 13.Ke2 Bc4 14.d3 Bb5=+.

6.Be2 Bd6 7.Nf3 c5 8.0–0 Qc7 9.d3 Ne7 10.Qd2 0–0 11.h3 g5 (11...Rfe8!?–/+) 12.a3 Ng6 13.a4 h6 14.Rfd1 f5 15.Ne1 Nf6 16.a5 Kh7 17.a6 b6 18.Nb1 Rae8 (18...Rad8 19.c4–/+) 19.c4 d4 20.Nc2 f4 21.ed4 ed4 22.Bf3 (22.Ne1 Re7+=) 22...g4 23.hg4 Bg4 24.Ne1? (better is 24.Bg4!? Ng4 25.Re1–+) 24...Nh4–+ 25.Bg4? (25.Be4 Ne4 26.de4–+) 25...Ng4 26.f3 (26.Nc3 f3 27.g3 dc3 28.Qc3 Bg3 29.Qg7 Qg7 30.Bg7 Bf2 31.Kh1 Be1 32.Ra2 f2 33.Rf2 Rf2 34.Bd4 cd4 35.Kg1 Nf3 36.Kh1 Rh2) 26...Ne3 (26...Ne3 27.Nc3 dc3 28.Bc3 Rg8–+) 0–1. Richter,Wolfgang – Feilmayr,Erwin, corr ICCF TT, 2004.

6.Nf3 Bd6

7.Be2 Ne7

8.0–0 0–0

9.a3 Nb6 10.a4 Nc4 11.Bc4 dc4 12.d4 cd3=.

9.a3 c5 10.bc6 Nc6 11.Rb1 a6 12.Ne1 b5=+.

9.a3 c6 10.bc6 Nc6 11.Nb5 Be7 12.Nc3 Nb6=+.

9.a3 Qe8 10.a4 Qg6 11.a5 a6 12.Ba3 Ba3=+.

9.a3 Nf5=+.

9.a3 Ng6 10.a4 c5 11.a5 a6 12.b6 f5=+.

9.a4 c5 10.a5 a6 11.b6 Nc6 (11...Rc8 12.d3 Qe8=+) 12.Ra4 (12.e4 d4=+) 12...e4 (12...f5=+) 13.Ne1 f5 14.d3 Nf6 =+.

9.Rb1 Qe8 (9...c5 10.bc6 Nc6 11.Nb5 Be7 12.Ba3 Ba3=+; 9...c6 10.bc6 Nc6 11.Nb5 Be7 12.Ba3 Ba3=+) 10.a4 Qg6 11.a5 c5 12.a6 Rab8=+.

9.d4 e4 10.Nd2 Qb8 11.g3 Qe8 12.a4 Qg6=+.

9.d4 e4 10.Nd2 c6 11.bc6 bc6 12.Rb1 Qc7 13.h3 Rab8 14.Qc1 (14.f3 ef3 15.Nf3 c5+=) 14...f5 (14...Nf5 15.Qd1+=) 15.Nb3 (15.f3 ef3 16.Nf3 c5+=) 15...f4–/+ 16.f3 Nf5 17.fe4 Ne3 18.Rf3 de4 19.Ne4 Bd5 20.Bd3 Nf6 21.Nf6 Rf6 (21...gf6?! 22.Rf2=) 22.Rf2 Qf7 (22...Re6 23.c4 Be4 24.Be4 Re4 25.c5+=) 23.Ba3+= ½–½. Gall,Zdenek – Thystrup,Preben, corr 3GMM–26, 1996.

9.d4 e4 10.Nd2 Nf5 11.a3+=.

9.Re1 c5 (9...c6 10.bc6 Nc6 11.Nb5 Be7 12.Ba3 Ba3=+; 9...Qe8 10.a4 Qg6 11.Ba3 Ba3 12.Ra3 c5=+; 9...Nb6 10.a4 Nc4 11.Bc4 dc4 12.e4 Bc5=+) 10.bc6 Nc6 11.Nb5 Be7 12.Ba3 Ba3=+.

5.c4 dc4

6.Qa4 Bd5 7.Nc3= c6 8.bc6 Nc6 9.Nd5 Qd5 10.Qc4 Qc4 11.Bc4 0–0–0 12.Nf3 Bc5 13.Rc1 Bb4 Attacks the backward pawn on d2 14.Ke2 Nge7 15.d4 Kb8 (15...e4!? 16.Nd2 Bd2 17.Kd2 Nd5+=) 16.de5+/– fe5 17.Rhd1 (17.Be5?! Ne5 18.Ne5 Rd2 19.Kf3 Rf8 20.Ke4 Ba3+=) 17...Ng6 18.Bb5 Rhe8 (18...Rd1 19.Rd1 (worse is 19.Kd1 Rd8 20.Kc2 e4+=) 19...Re8 20.Rd7+–) 19.Rd8 (better is 19.Bc6!? bc6 20.Ne5+– (20.Rc6?! Rd1 21.Kd1 Kb7+/–)) 19...Rd8+/– 20.Bc6 bc6 21.Rc6 Kb7 (21...Rd5 22.Re6 Kc7 23.Be5 (worse is 23.Ne5 Rd2 24.Kf3 Rb2 25.Ng6 hg6+=) 23...Kd7 24.Ra6 Ne5 25.Ne5 Re5 26.Ra7 Ke6 27.Rg7+/–) 22.Rc4 Ba5 23.Bc3 (23.h4 h5+–) 23...Bc7 (23...Bc3 24.Rc3 Rd6 25.Ng5+/–) 24.g3 (24.Ng5 Rc8+–) 24...Re8 25.h4 Re6 26.a4 h6 27.Rc5 Kb6 28.Rb5 Kc6 29.e4 Re7? (better is 29...a6 30.Rd5 Ne7+–) 30.h5 Nf8 31.Be5 Be5 (31...Ne6 32.Ke3+–) 32.Ne5 Kd6 33.Rd5 (33.Rd5 Kc7 34.f4+–) 1–0. Rozsa,Zoltan (1980) – Kantor,David (2065), HUN–chT2 Erkel, 2008.

6.Qc2 a6 7.Bc4 Bc4 8.Qc4 ab5 9.Qb5 Nd7 10.d4 c6 11.Qb3 ed4 12.Bd4 Qa5 13.Kf1. Schlaeger,Michael (2270) – Pech,Jaroslav (1815), remoteschach.de, 2007.

6.Qc2 Qd5 7.Nc3 Qc5=+ 8.d3 cd3 9.Bd3 Ne7 10.Nf3 a6=+.

6.Nc3 a6 7.ba6 Na6 8.Qa4 Qd7 9.Qd7 Kd7 10.Nf3 Nb4 11.0–0–0 Nd3 12.Bd3 cd3 13.Ne1 Bc4 14.a4 Bb4 15.Nb5?! c6 16.Nc3 Bc3 17.dc3 Ra4 18.Nd3–/+ Bd3 19.Rd3 Ke6 20.Rhd1 Ne7 21.Rd6 Kf5 22.f3 Kg6 23.g4 Nd5 24.e4 Nb6 25.h4 Nc4 26.h5 Kg5 27.Rd7 Rg8 28.Rb7 Nb2 29.Kb2 g6 30.Rh7 gh5 31.Rh5+/– Kg6? 32.Rdh1 Ra7 33.Rh6 Kg5? 34.R1h5+– Kf4 35.Rf6 Ke3 36.Re5?? Rb8–/+ 37.Kc2 Ra2 38.Kc1 Rbb2 39.Rd6 Rg2 40.Ra5?? Ra5–+ 41.Kb1 Rb5 42.Ka1 Kf3 43.e5 Re5 44.Rd4 Re1 45.Rd1 Rd1 0–1. dtpwaldi – wybitnytalent, internet, 2011.

6.Bc4?? Bc4–+ 7.d4 ed4 (7...ed4 8.Bd4 a6–+) 0–1. Van Rooijen,Peter – Barr,Epstein, UECC, 2000.

6.d4 Bd6–/+.

6.f4 Bd6 7.Qf3 (7.Qc2 a6 (7...ef4 8.Qe4 Be5 9.Be5 fe5 10.ef4 c6+=; 7...Qd7 8.Bc4 Bc4 9.Qc4 c6 10.fe5 fe5=; 7...c6 8.Bc4 Bc4 9.Qc4 ef4 10.ef4 a6+=) 8.Bc4 Bc4 9.Qc4 ef4 10.ef4 Qd7+=; 7.fe5 fe5 8.Nf3 a6 9.Ne5 Qh4 10.g3 Qg5–/+) 7...Nd7 (7...Ne7 8.fe5 fe5 9.Qe4–/+ Bd5 10.Qc2 Ng6–/+; 7...c6 8.fe5 fe5 9.Be5 Nf6 10.Bf6 Qf6–/+) 8.f5+= Bf7 9.Qg4 (9.Qb7 a6 10.Nc3 ab5–/+) 9...Kf8 (9...g6 10.fg6 hg6+=) 10.Bc4 Nh6 11.Qe2 Bc4 12.Qc4 Nf5 13.Ne2 Nb6 (13...Ke8 14.Qg4 g6 15.e4–/+) 14.Qd3 (14.Qe4 Qd7 15.a4 g6=) 14...g6 15.Qb3 (15.e4 Ne7+=) 15...Kg7 16.g4 (16.e4!? Nh6 17.0–0–/+) 16...Nh6 17.Rg1 Nf7 18.h4 Re8 19.Nbc3 a5 20.a4 c5 21.0–0–0 c4 22.Qc2 Kg8 (22...Bb4 23.d4 cd3 24.Rd3–+) 23.h5–/+ g5 24.Qf5 Nh6 25.Qf3 Qe7 26.Rgf1 Rf8 27.d4 ed4 28.ed4 f5 29.Nd5 Nd5. Stobbe,Arthur J – De Visser,Arnold, corr ICCF, 1993.

6.f4 ef4 7.ef4 Bd6 8.Qh5 Bf7 9.Qf3–/+ c6 10.Nc3 Ne7–+.

6.Qa4 Nd7

7.Na3 Nc5–+ 8.Qc2 Nd3 9.Bd3 Qd3 (9...cd3 10.Qc3–+) 10.Rc1 Qc2 11.Rc2 a6 12.Ne2 (12.Nc4 ab5 13.Ne5 fe5 (13...Ra2?! 14.Nd3–+) 14.Rc7 Bd6 (14...Ra2?! 15.Be5 Nf6 16.Nf3–+) 15.Rb7 Bd5–+ (15...Ba2?! 16.Rg7 Bd5 17.Nf3–+; 15...Ra2?! 16.Rb5 Bc4 17.Rb6–+)) 12...Ba3 13.Ba3 ab5 14.Bb4 Ne7 15.e4 Nc6 16.Bc5 b6 (better is 16...b4–+) 17.Be3 Nb4 18.Rc3 Na2 (18...Nd3 19.Rd3 cd3 20.Nc3–+) 19.Rc2 Nb4 20.Rb2 (20.Rc3–+) 20...Nd3 (21.Kd1 Nb2 22.Kc2 Nd3–+) 0–1. Feijo,FC – De Moraes,Pedro, Fortaleza BRA, 1994.

7.Qc2 Nc5–/+.

7.Bc4?? Nb6 8.Qc2 Bc4 9.a4 (9.d4 ed4 10.Bd4 Bb4 11.Nc3 Bb5–+) 9...Bd3 10.Qb3 Qd7 11.Nc3 Nc4 12.Nf3 Ne7 13.Ba3 0–0–0 (13...Na3!? 14.Ra3 Nf5 15.Ra2–+) 14.a5 Na3 15.Ra3 Nd5 16.Ra2 (16.b6 ab6 (16...Ba3? 17.ba7 Qc6 18.a8Q Kd7 19.Qab7 Qb7 20.Qb7+–) 17.Ra1 Qg4 18.ab6 Nb6–+) 16...Nb4 17.Rb2 (17.b6 ab6 (17...Na2? 18.ba7 Qc6 19.a8Q Kd7 20.Qab7 Qb7 21.Qb7+–) 18.ab6 Na2 19.Qa2 cb6–+) 17...Qg4 18.Ne2 (18.Rg1 Bc4 19.Qb4 Bb4 20.Rb4 Qe6–+) 18...Qg2 19.Rg1 (19.Ng3 Qf3 20.Qc3 e4–+) 19...Qf3 20.Nc3 (20.Nc1 Qh3 21.b6 Qh2 22.Qe6 Kb8 23.ba7 Ka7 24.Qg4–+) 20...Bf5 21.b6 Nd3 0–1. GuestLSJS – GuestHNDS, freechess.org, 2017.

7.Bc4?? Nb6–+ 8.Qc2 Nc4 9.Nc3 Nb2 10.Qb2 Qd3 11.Nge2 0–0–0 (11...Rd8 12.Nc1 Qg6 13.0–0–+) 12.f4 (12.Nc1 Qd6–+) 12...Bf5 (12...Bf5 13.fe5 fe5–+; 12...e4 13.Nc1 Qc4 14.Qb3–+) 0–1. Wartig,Wolfgang – Seack,Ingo, corr SOK–92–88, 1992.

7.d4!?–/+.

6.Qc2 c6

7.a4 cb5–/+ 8.ab5 Nd7 (8...Qc8 9.Na3–/+ Ba3 10.Ra3 Qc5 11.Rc3 Qb5+=; 8...Qd5 9.Nc3 Qd7 10.Ra4 a6 11.Nf3 Nh6+=) 9.Bc4+= Rc8 10.d3 Nb6 (10...Bb4 11.Bc3 Bc4+=) 11.Nd2 (11.Ra7 Bd5+=) 11...Bb4 12.Bc3 (12.Ra7? Bc4 13.dc4 Nc4–+) 12...Bc3 (12...Bc4 13.dc4 Nc4 14.Bb4 Ne3 15.Qb3 Nc2 16.Kd1 Na1 17.Qe6 Ne7 18.Be7–/+) 13.Qc3= Ne7 (13...Nc4 14.dc4 Qb6 15.Qb4+=) 14.Ngf3 (14.Ra7 Nc4 15.dc4 Qb6=) 14...Ned5 (14...Nc4 15.dc4 Qb6 16.0–0=) 15.Qa3+= Ra8 16.Ne4 Qe7 17.Nd6 Kf8 18.Bd5 Nd5 19.d4 Bg4 (19...Kg8 20.0–0 Bg4 21.Qc5+/–) 20.0–0 (20.de5!? fe5 21.Qc5 Bf3 22.Ra7+/–) 20...Bf3+= 21.gf3 g6 (21...ed4 22.ed4 Qd7 23.Qc5+/–) 22.Qc5 Nb6 (22...ed4 23.Qd5 Rd8 24.Qb7 Rd6 25.Qe7 Ke7 26.Ra7 Ke6 27.ed4 Rd4 28.Re1 Kd6 29.Rc1+/–) 23.Rfc1 Rg8? (23...ed4 24.ed4 (24.Qd4?! Rd8 25.Rd1 Nc8 26.Nc8 Rd4 27.Rd4 Qc7 28.Na7 Kg7+=) 24...Qd7 25.Nb7 Kg8 26.Qc6+–) 24.Nb7 (better is 24.Qb6! ab6 25.Ra8 Kg7 26.Rg8 Kg8 27.Rc8 Kg7+–) 24...Rg7 (24...Rc8 25.Qe7 Ke7 26.Nc5+–) 25.Na5 (25.Qb6 Qb7 (25...ab6?? 26.Ra8 Qe8 27.Re8 Ke8 28.Nd6 Kd8 29.de5 fe5 30.Rc8 Kd7 31.Rc6+–) 26.Qf6 Kg8 27.Qe5 Qf3+–) 25...ed4 26.ed4 Kg8 27.Re1 Qd7 28.Nc6 Nd5 (better is 28...Rf7+–) 29.Ra7! (29.Ra7 Ra7 30.Na7+–) 1–0. Tomisek,Petr – Svancer, corr, 1971.

7.Bc4!? Qd7 8.a4 (8.Be6 Qe6 9.Qe4= a6 10.bc6 Nc6 11.Nf3 f5=+) 8...Bd6 (8...cb5 9.ab5 Bc4 10.Qc4 a6 11.ba6 Ra6=; 8...a6 9.Be6 Qe6 10.Nf3 ab5 11.ab5 Ra1=; 8...Bc4 9.Qc4 a6 10.Nc3 Bd6 11.b6 a5=; 8...Bb4 9.Nf3 cb5 10.Bb5 Nc6 11.Be5 fe5+=; 8...Nh6 9.Be6 Qe6 10.Nf3 Bd6 11.Nc3 cb5=) 9.Be6 Qe6 10.Nf3 Ne7 11.d4 e4 =.

7.Bc4 Bc4

8.Qc4 a6 9.ba6 Na6 10.d4 e4 11.a3 Qd7 =+.

8.Qc4 Qd5 9.Qd5= cd5 10.Nc3 Ne7 11.Ba3 (11.d4+=) 11...d4 12.ed4 ed4 13.Nce2 Nf5 14.Bf8 Kf8 15.Nf3 Nd7 16.Nfd4 Nd4 17.Nd4 Re8 18.Kd1 Re4 (18...Nc5!?+/–) 19.Rc1+– Nb6 20.Nf5 Rf4 (20...Re5 21.Nd6 Ke7 22.f4+–) 21.Ne3 (21.Nd6 Rd4 22.Nb7 Kf7+–) 21...Rf2 (21...Rb4!?+–) 22.Rc7 h5 (22...Rf4+–) 23.Rb7 Rh6 24.g3 g5 25.Ke1 Rf3 26.Ke2 g4 27.Rc1 (27.Rc1 f5 28.a4+– (worse is 28.Ra7 f4 29.gf4 Rh3+–)) 1–0. Karpenko,Aleksandr D – Dolgov,Andrey V, corr, 2003.

8.Qc4 Qd7 9.Nc3 a6 10.b6 Be7 11.Nf3 Qd8 =.

8.Qc4 Ne7 9.e4 a6 10.ba6 b5 11.Qc3 Na6 =.

8.Qc4 cb5

9.Qb5 Qd7

10.Qb3.

10.Nc3 a6 11.Qd7 Nd7=.

10.Nc3 Nc6 11.d4 a6=.

10.Nc3 Ne7

11.Ba3 a6 A) 12.Qb3 A1) 12...Nbc6 13.Rc1 (13.Nf3 Na5 14.Qc2 Nc4 15.Bc5 Rc8 16.d4+=; 13.Ne4 Na5 14.Qc3 Nec6 15.Bf8 Rf8 16.Nf3=) 13...Rd8 14.Nf3 Na5 15.Qc2 Nc4 16.Be7=; A2) 12...b5 13.Be7 (13.Nf3 Nbc6 14.Ne4 Na5 15.Qc3 Nb7 16.Be7=; 13.Ne4 Qg4 14.Nd6 Kd7 15.Kf1 Qe6 16.d4=; 13.Rc1 Nbc6 14.Ne4 Na5 15.Qd1 Ng6 16.Bf8=) 13...Be7 14.Nd5 Bd8 15.a4 ba4 16.Ra4=; A3) 12...f5 13.Rb1 (13.Be7 Be7 14.Rb1 Ra7 15.Nf3 Nc6 16.e4+=) 13...b5 14.Be7 Be7 15.Nd5 Bd8 16.Ne2=; B) 12.Qb1 b5 (12...f5 13.e4 Nbc6 14.Nf3 Ng6 15.Bf8 Rf8 16.0–0=) 13.Nf3 Nbc6 14.Ne4 Ng6 15.Bf8 Nf8 16.a4=; C) 12.Qd7 C1) 12...Kd7 13.d4 (13.Rd1 Nbc6 14.d4 ed4 15.Nge2 Nf5 16.Bf8=; 13.Nf3 Nbc6 14.d4 ed4 15.0–0–0 Rc8 16.ed4=; 13.Nge2 Nbc6 14.d4 ed4 15.Rd1 Nf5 16.Bf8=; 13.0–0–0 Nf5 14.Bf8 Rf8 15.d4 ed4 16.ed4=) 13...ed4 14.ed4 Nf5 15.Bf8 Rf8 16.0–0–0=; C2) 12...Nd7 13.Nf3 (13.Rd1 Rc8 14.Nge2 f5 15.d4 b5 16.Bb4=; 13.Nge2 Rc8 14.d4 b5 15.Ne4 Nf5 16.Bf8=; 13.d4 Rc8 14.Nge2 f5 15.Rd1 b5 16.Bb4=) 13...Rc8 14.Rc1 f5 15.d4 e4 16.Nd2=.

11.Ba3 Qb5 12.Nb5 Na6 (12...Kd7 13.d4 a6 14.Nc3 ed4 15.ed4 Nf5 16.Bf8=) 13.Nf3 (13.Nd6 Kd7 14.Nb7 Nf5 (14...Nc6 15.Bf8 Rhf8 16.d4=) 15.Bf8 Rhf8= 16.g4=) 13...Nc6 14.Bf8 Rf8 15.Ke2 (15.d4 Rd8 16.Ke2=) 15...0–0–0 (15...Rd8 16.d4=) 16.Rhc1 (16.Rac1=) 16...Kb8 17.Rab1 (17.d4 Rfe8 18.Rd1 Nab4 19.de5 fe5 20.Rd8 Rd8=) 17...Ncb4 (17...Nab4 18.d4=) 18.a3 (18.Nc7! Nc7 19.Rb4=) 18...Nd3= 19.Rc6?? (19.Rc3 Nac5 20.Ne1 Ne1 21.Re1+=) 19...bc6–+ 20.Nbd4 Ka8 (20...Ka8 21.Ne6 e4 22.Nd8 Rd8–+) 0–1. De Visser,Arno – Lozovich, corr ICCF, 1984.

11.d4 ed4 12.Rd1 Qc6 13.Rd4 Na6=.

11.Nf3 a6 12.Qb3 A) 12...a5 13.Ba3 (13.Rc1 a4 14.Qb5 a3 15.Ba1 Nbc6 16.Rb1+=; 13.a3 Nbc6 14.0–0 Qd3 15.Rab1 Rb8 16.Ne1=) 13...a4 14.Qc2 g5 15.Rc1 Nbc6 16.Ne4+=; B) 12...Nbc6 13.Rc1 (13.0–0 Qd3 14.Rfc1 Rc8 15.Ne1 Qd7 16.d3=; 13.d4 ed4 14.ed4 Nf5 15.0–0–0 Nce7 16.Rhe1+=) 13...Qd3 14.Ba3 b5 15.Be7 Ne7 16.a4+=.

11.Nf3 a6 12.Qd7 Nd7 13.Ke2 (13.Rd1 Rc8 14.d4 Ng6 15.Ke2 Nb6 16.Rc1=; 13.d4 Rc8 14.Rc1 ed4 15.ed4 Nb6 16.Ne4=) 13...f5 14.e4 Rd8 15.Rhe1 Ng6 16.ef5+=.

11.Nf3 a6 12.Qe2 Nd5 (12...Nbc6 13.0–0 Rd8 14.d4 Qg4 15.h3 Qg6 16.de5+=) 13.0–0 (13.Nd5 Qd5 14.e4 Qd7 15.0–0 Nc6 16.d4=) 13...Nc6 (13...Nc3 14.Bc3 Nc6 15.d4 e4 16.Nd2+=) 14.Rfc1 (14.Nd5 Qd5 15.e4 Qd7 16.Rad1=) 14...Be7 (14...Nc3 15.Rc3 Rd8 16.d3=) 15.Ne4 (15.Nd5 Qd5 16.e4 Qd7=; 15.d4 Nc3 16.Bc3=) 15...0–0 (15...Ndb4 16.Ne1=) 16.d4 (16.Ng3=) 16...ed4 (16...Qe6 17.Qd3 Rad8 18.Ng3=) 17.Nd4 Rac8 18.Nc5 Bc5 19.Rc5 Nd4 20.Bd4 Rc5 21.Bc5 Rc8 22.Bd4 Qc6 23.h3 b5 24.Qg4 Re8 25.Rd1 Ne7 26.Bb2 Ng6 27.Rc1 Qe6 28.Qd4 (28.Qe6 Re6 29.Kf1 Kf7=) 28...Ne5 (28...Qa2 29.Qd7 Rf8 30.Bd4+=) 29.a4 Nc4 30.ab5 ab5 31.Bc3 Rd8?? (better is 31...Qf5=) 32.Bb4 ½–½. De Visser,Arno – Andersson,J, corr ICCF Cup VI–VII, 1986.

11.Nf3 Nec6 A) 12.0–0 A1) 12...Bb4 13.d4 (13.Rfd1 a6 14.Qb6 Qc8 15.e4 Nd7 16.Qe3+=; 13.Rad1 a6 14.Qb6 Qc8 15.e4 Nd7 16.Qe3+=; 13.Ne4 a6 14.Qc4 Qf7 15.Qc2 0–0 16.d4=; 13.Rab1 a6 14.Qb6 Ba5 15.Qb3 Qf7 16.Qf7+=; 13.e4 Na6 14.Nd5 Ne7 15.Qd7 Kd7 16.Nb4+=; 13.Nd5 Na6 14.e4 Rd8 15.d4 Nd4 16.Nd4+=) 13...a6 14.Qe2 Bc3 15.Bc3 Qe6 16.de5+/–; A2) 12...Na6 13.d4 (13.Rfd1 Nc7 14.Qb3 f5 15.d4 e4 16.Ne5+/–; 13.Rad1 Nc7 14.Qb3 f5 15.e4 Ne6 16.ef5+=) 13...Nc7 14.Qb3 Na5 15.Qc2 ed4 16.Rad1+/–; A3) 12...Bd6 13.d4 a6 14.Qb6 ed4 15.ed4 0–0 16.Rfe1+=; A4) 12...a6 13.Qe2 (13.Qb6 Bb4 14.Rfd1 Qc8 15.e4 Nd7 16.Qe3+=; 13.Qb3 Na5 14.Qc2 Nbc6 15.d4 Rc8 16.Rfd1+=) 13...b5 14.d4 b4 15.Na4 Qg4 16.de5+=; B) 12.d4 B1) 12...Bd6 13.0–0 (13.d5 Ne7 14.e4 Na6 15.Rd1 Rc8 16.Kd2+=; 13.Rd1 ed4 14.ed4 Qe7 15.Qe2 Qe2 16.Ke2+=) 13...a6 14.Qb6 ed4 15.ed4 0–0 16.Rfe1+=; B2) 12...ed4 13.ed4 Bd6 14.0–0 0–0 15.Rfe1 Rd8 16.Rad1+=; B3) 12...a6 13.Qb3 (13.Qb6 Bb4 14.0–0 Qc8 15.Nd5 Nd7 16.Qc7+=) 13...Na5 14.Qc2 ed4 15.Rd1 Nbc6 16.0–0+=; B4) 12...Bb4 13.d5 Bc3 14.Bc3 Ne7 15.Qd7 Nd7 16.Rd1=; C) 12.Rb1 C1) 12...Bb4 13.d4 (13.Nd5 Na6 14.Bc3 Bc3 15.dc3 Rb8 16.0–0+=; 13.0–0 Na6 14.d4 Nc7 15.Qe2 Rc8 16.Rfc1=) 13...a6 14.Qe2 b5 15.0–0 0–0 16.de5+=; C2) 12...Bd6 13.0–0 (13.Ne4 Bb4 14.0–0 a6 15.Qb6 Ra7 16.a3+=) 13...f5 14.e4 Nd4 15.Nd4 ed4 16.Qd7+/–; C3) 12...a6 13.Qb3 (13.Qb6 Bb4 14.0–0 Ba5 15.Qb3 Qf7 16.Qf7+=; 13.Qe2 Bb4 14.0–0 0–0 15.d4 b5 16.de5+=) 13...b5 14.d4 b4 15.Na4 Qg4 16.0–0+=; C4) 12...Na6 13.d4 Bb4 14.d5 Ne7 15.Qd7 Kd7 16.e4=; D) 12.a3 D1) 12...Bd6 13.Rc1 (13.0–0 Na6 14.d4 Nc7 15.Qb3 Na5 16.Qa2+=; 13.d3 a6 14.Qb6 Ra7 15.Ne4 Be7 16.Qb3=) 13...f5 14.e4 Nd4 15.Ne5 Nb5 16.Nd7+=; D2) 12...Na6 13.d4 (13.0–0 Nc7 14.Qe2 Rd8 15.d4 Qg4 16.de5+=) 13...Nc7 14.Qa4 b5 15.Nb5 Nb5 16.Qb5+=; D3) 12...a6 13.Qb3 (13.Qb6 Qe6 14.Rb1 Ra7 15.0–0 Nd7 16.Qc7+=; 13.Qe2 Bd6 14.e4 0–0 15.Nd5 Qf7 16.0–0=; 13.Qd5 b5 14.d4 b4 15.ab4 Bb4 16.Qc4=) 13...Na5 14.Qc2 Nc4 15.0–0 b5 16.Rfd1=; E) 12.Rd1 E1) 12...a6 13.Qb3 (13.Qb6 Bb4 14.0–0 Qc8 15.e4 Nd7 16.Qe3+=) 13...Bb4 14.d4 Qe7 15.de5 Ne5 16.Ne5+/–; E2) 12...Bd6 13.Ne4 (13.d4 ed4 14.ed4 Qe7 15.Qe2 Qe2 16.Ke2+=) 13...Bb4 14.a3 a6 15.Qb6 f5 16.Nc5+/–; E3) 12...Bb4 13.Nd5 (13.d4 e4 14.Nd2 f5 15.g4 fg4 16.Nce4+=; 13.0–0 a6 14.Qb6 Qc8 15.e4 Nd7 16.Qe3+=) 13...a6 14.Qd3 b5 15.e4 Ba5 16.Qc2+=.

11.Nf3 Nbc6

12.0–0 a6 13.Qb3 Qd3 14.Rfc1 Rc8 15.Ne1 Qg6 16.Na4=.

12.0–0 a6 13.Qb6 Qd8 14.Qb3 Qd3 15.Rfc1 Rc8 16.Ne1=.

12.0–0 a6 13.Qe2 Rc8 14.Rfd1 Qg4 15.d3 Nf5 16.h3+=.

12.0–0 a6 13.Qe2 Qe6 14.d4 ed4 15.ed4 Qe2 16.Ne2 Nd5 17.Nc3 0–0–0 18.Rac1 Kb8 (18...Bb4 19.Rfe1=) 19.Rfd1 Bb4 20.Na4 Rhe8 21.a3 Bf8 22.Nc5 Ka7 23.Rc2 Na5 24.g3 g6 25.Rd3 (25.Re1 Re1 26.Ne1 b6+=) 25...b5 26.Bc3 (26.Kf1 Nc4 27.Nd2 Nb2 28.Rb2 Nf4 29.gf4 Bc5+=) 26...Nc4–/+ 27.Bb4 Nb4 28.ab4 a5 29.Ra2 a4 30.Rc3 (30.Kf1 Nb6–/+) 30...Nb6–/+ 31.Rc1 Nd5 32.Rb2 Kb6 33.Kf1 Bh6 (33...Bd6 34.Ra1–/+) 34.Ra1 Rc8 35.Ne1 Rc7 36.Ned3 Bg7 37.Re2? (better is 37.f4!?–/+) 37...Re2–+ 38.Ke2 Re7 39.Kd2 (39.Kf3 f5 40.Rd1 Kc6–+) 39...f5 0–1. De Visser,Arno – Martinovsky, corr ICCF Cup VI–VII, 1986.

12.0–0 Rd8 13.d4 a6 14.Qa4 ed4 15.ed4 Nd5 16.Rfe1+=.

12.0–0 Nf5 13.Rac1 (13.Rfc1 Rd8 14.Qa4 Bb4 15.a3 Bc3 16.Rc3=; 13.Rfd1 Nd6 14.Qb3 Rc8 15.e4 b5 16.d4=; 13.Rad1 Nd6 14.Qe2 Rc8 15.d4 Qg4 16.d5+=; 13.Rab1 Rd8 14.Rfd1 Nd6 15.Qa4 f5 16.d4+=; 13.d3 Rd8 14.Rfd1 Nb4 15.d4 ed4 16.Nd4+=; 13.a3 Nd6 14.Qd5 Qf7 15.Qf7 Kf7 16.d4=; 13.Qb3 Rd8 14.Rac1 Bb4 15.e4 Nfd4 16.Nd4=) 13...Nb4 14.d4 ed4 15.Nd4 Nd4 16.ed4+=.

12.Rb1 A) 12...Nc8 13.0–0 (13.d4 Nd6 14.Qe2 Qg4 15.d5 Na5 16.0–0=; 13.Qb3 Nb6 14.0–0 Rc8 15.d4 Na5 16.Qc2=; 13.d3 Bb4 14.0–0 a6 15.Qd5 Bc3 16.Qd7=; 13.e4 Nb6 14.a4 Nd4 15.Nd4 ed4 16.Ne2=) 13...Nd6 14.Qa4 Rc8 15.d4 b6 16.de5+=; B) 12...Nf5 13.0–0 (13.e4 Nd6 14.Qe2 Rd8 15.0–0 g5 16.Rfc1=) 13...Rd8 14.Rfd1 Nd6 15.Qa4 b6 16.d4+=; C) 12...a6 13.Qb6 (13.Qa4 Nd5 14.0–0 b5 15.Qh4 Bb4 16.Ne2=) 13...Rb8 14.d4 ed4 15.Nd4 Nd4 16.ed4=.

12.Rc1 A) 12...Nf5 13.0–0 (13.e4 Nd6 14.Qe2 Rd8 15.0–0 g5 16.d3=; 13.a3 Nd6 14.Qa4 a6 15.d3 b5 16.Qc2=) 13...Nb4 14.d4 ed4 15.Nd4 Nd4 16.ed4+=; B) 12...a6 13.Qb6 (13.Qb3 Rc8 14.Ne4 Qd5 15.Qd5 Nd5 16.Ke2=) 13...Qg4 14.0–0 Qb4 15.Qb4 Nb4 16.d4=; C) 12...Rd8 13.0–0 (13.Ba3 f5 14.d3 Qd3 15.Qb7 Rd7 16.Qb2=; 13.e4 a6 14.Qe2 Nb4 15.0–0 Ng6 16.Qd1+=) 13...Qd3 14.Qb3 Na5 15.Qa4 Nec6 16.Nb5=.

12.Rd1 a6 13.Qe2 (13.Qb3 Qd3 14.Ba3 b5 15.Be7 Be7 16.Nd5=; 13.Qb6 Nd5 14.Qb3 Ndb4 15.d4 Na5 16.Qa4–/+) 13...Nd5 14.0–0 Rc8 15.d4 Nc3 16.Bc3=.

12.d4 A) 12...ed4 13.ed4 (13.Nd4 Nd4 14.ed4 Qb5 15.Nb5 Kd7 16.Kd2=) 13...a6 14.Qb3 Nf5 15.0–0–0 Nce7 16.Rhe1+=; B) 12...a6 13.Qb3 (13.Qa4 ed4 14.Nd4 Rd8 15.Rd1 Nd4 16.Qd4=; 13.Qb6 ed4 14.Nd4 Nd4 15.Qd4 Qd4 16.ed4=) 13...ed4 14.ed4 Nf5 15.0–0–0 Bd6 16.Rhe1=.

6.Qc2 Qd5

7.Na3? Ba3–+ 8.Ba3 Qb5 9.Rb1 Qc6 10.d3 (10.Rc1 Nd7–+) 10...cd3 11.Qc6 (11.Bd3 A) 11...Qg2? 12.Be4 Bf5 13.Qa4 (13.Bg2?! Bc2 14.Rb7 c6+=) 13...Nd7 14.Bg2 (14.Bf5?! Qc6 15.Qc6 bc6+–) 14...Bb1 15.Qb3+–; B) 11...Qc2 12.Bc2 b6–+) 11...bc6 (better is 11...Nc6 12.Bd3 0–0–0–+) 12.Bd3 Ba2 13.Rb7 Kd8 (13...Nd7 14.Ne2–+) 14.Nf3? (better is 14.Bf8!? Nd7 15.Bg7+=) 14...Nd7–+ 15.0–0 (15.Ke2 c5 16.Be4 Ne7–+) 15...Ne7 (15...a5 16.Rc1–+) 16.Be7 (16.Ra1 Bd5 17.e4 Be6–+) 16...Ke7 17.Rc7? (better is 17.Ra1 Bd5 18.e4–+) 17...Kd8?? (better is 17...Kd6 18.Rb7 Nc5–+) 18.Rc6–/+ Bd5 19.Rd6 Bb7?? (better is 19...Bf3 20.Bf5 Ke8 21.Rd7 Be4=) 20.Bb5+– Bc8 21.Rfd1 (21.Bd7 Ke7 22.Bc6 Kd6 23.Ba8 Bf5+–) 21...Ke7 22.Rd7 (22.Bd7 Rd8 23.Bc6 Rd6 24.Rd6 Kd6 25.Ba8 a5+/–) 22...Bd7+/– 1–0. DEFFM – GuestQFVV, freechess.org, 2017.

7.a4 Bd6 8.Na3 Ba3 9.Ra3–/+.

7.a4 Bf7 8.Ba3 (8.Na3 Ba3 9.Ba3 c5–/+) 8...Ba3 (8...Bd6!?–/+) 9.Na3=+ c6 10.Rb1? (10.Nc4 cb5 11.Nd6 Qd6 12.Qc8 Qd8 13.Bb5 Nc6 14.Qb7+=) 10…Bg6–+ (11.Qc4 Bb1 12.Nb1 a6–+) 0–1. Law – Kaminski,Roman, corr 3GMM–11, 1995.

7.Nc3 Qd6 8.a4 (8.Qe4 c6 9.Bc4 f5+=) 8...c5 (8...Nd7 9.Ba3 Qb6 10.Bf8 Nf8 11.a5=) 9.bc6 (better is 9.Qe4!? Qe7 10.Nd5=) 9...Qc6 10.Nf3 (10.d4 Na6–/+) 10...Ne7 (10...Na6 11.d4 cd3 12.Qd3–/+) 11.Ba3 (11.d4 cd3 12.Bd3 Qb6+=) 11...g6 (11...Nd7 12.Rc1–/+) 12.Be2 (12.Rc1 Nf5 13.Bf8 Rf8+=) 12...Nd7 13.0–0 Nc5?? (better is 13...Nd5–/+) 14.Bc5+/– Qc5 15.Ne4 Bf5 16.Nc5 (better is 16.Bc4 Qb6 17.Rab1 Be4 18.Qe4+–) 16...Bc2= 17.Bc4 a6 (17...b6!? 18.Ne6 Rc8+=) 18.Nb7 (18.Rfc1 Bf5+/–) 18...Nf5 19.Rfc1 (19.d3!? e4 20.Ne1 ed3 21.Ra2+/–) 19...Be4+= 20.Na5 Bb4 21.Nb3 Rc8? (better is 21...Ke7+=) 22.Ba6+– Rc1 23.Rc1 0–0 (23...Nd6 24.d4 Bf3 25.gf3+–) 24.Bb5 (24.Rc4!? Bf3 25.Rb4 Bc6+–) 24...Nd6 1–0. GuestJJFN – GuestTDQP, freechess.org, 2017.

7.Nc3 Qd7 8.Qe4 c6 9.Bc4 Bf5 10.Qf3 Bb4 11.Nge2 Nh6 12.0–0 Nf7 13.d4 Bg4 14.Qg3 ed4 15.ed4 0–0 16.Rfe1 Kh8 17.Nf4 Nd6 18.Bb3 Nb5= 19.Nb5 cb5 20.Re4 Bd6 21.Ng6 hg6 22.Qg4 Qg4 23.Rg4 g5 24.h4 Bf4 25.hg5 Bg5 26.Re1 Nc6 27.Be6 (27.Be6 Rae8 28.d5+/–) 1–0. Crapov – Jose Luis, ChessWorld.net, 2006.

7.Nc3 Qc5

8.a4 Qb4 9.Qe4 c6 10.Ba3 Qb3 11.Bf8 Kf8 12.Rb1 Qa3 13.Bc4+/–.

8.a4 c6 A) 9.d3 Qb4 (9...cb5 10.ab5 Nd7 11.Nf3 Be7 12.d4 Qb4 13.Nd2=) 10.Nf3 (10.dc4 Bc4 11.Bc4 Qc4 12.Nge2 Bb4 13.0–0+=) 10...cb5 11.ab5 Nd7 12.d4 Nh6 13.e4+=; B) 9.Nf3 B1) 9...Qb4 10.d4 cd3 11.Bd3 Bb3 12.Qd2 Nd7 13.0–0=; B2) 9...Be7 10.d4 cd3 11.Bd3 Qb4 12.0–0 Bb3 13.Qd2=; B3) 9...Nh6 10.d4 (10.Ba3 Qb6 11.Bf8 Kf8 12.a5 Qc5 13.a6+=; 10.d3 Qb4 11.Nd2 cd3 12.Bd3 Qg4 13.0–0+=) 10...cd3 11.Bd3 Qb4 12.0–0 Bb3 13.Qb1=; B4) 9...cb5 10.ab5 Nd7 11.Ba3 Qc7 12.Bf8 Kf8 13.Ne4+=; C) 9.Ba3 Qb6 10.Bf8 Kf8 11.Rb1 (11.d3+= cb5 12.ab5 cd3 13.Bd3+=) 11...cb5 12.Rb5 Qc7 13.Nd5=.

8.a4 Bd6 9.Ba3 (9.Qe4!? Nd7 10.Qb7=) 9...Qb6+= 10.Ne4 Ba3 11.Ra3 Ne7 (11...a6!? 12.ba6 Na6 (worse is 12...Qa6 13.Nc5 Qd6 14.Ne6 Qe6 15.Bc4+=; 12...Ra6?! 13.Rc3=) 13.Bc4 Nb4=) 12.Bc4= 0–0?? (better is 12...Bc4 13.Qc4 a6 14.ba6 ba6+=) 13.a5+– (13.a5 Qb5 14.Bb5+–) 1–0. GuestFDJX – GuestQCBX, freechess.org, 2017.

8.a4 Nd7 9.Nf3 (9.Qe4 Rb8 (9...c6 10.Ba3 Qb6 11.Bc4 f5 12.Qh4 c5 13.a5=; 9...0–0–0+= 10.Ba3 Qb6 11.Bf8 Nf8 12.a5 Qd6 13.Nf3+=) 10.Ba3 Qb6 11.Bf8 Kf8 12.Bc4 Nc5 13.a5–+; 9.Ba3 Qb6 10.Bf8 Nf8 11.Qe4 Rb8 12.Bc4 Ne7 13.Be6=) 9...Qb4–/+ (9...Qd6 10.d4 (10.d3 Qb4 11.dc4 Bc4 12.Bc4 Qc4 13.Nd2+=; 10.Ne4 Qb4 11.Be2 a6 12.Bc3 Qe7 13.0–0+=) 10...cd3 11.Bd3 Qb4 12.Ba3 Qb3 13.Qb3+=; 9...Qe7 10.d4 cd3 11.Bd3 Qb4 12.Ba3 Qb3 13.Qb3+=) 10.d4 (10.Be2 Rd8 11.Ne4 Qb3 12.Qb3 cb3 13.a5–/+; 10.Ne4 0–0–0 11.Rb1 Qb3 12.Qc1 Qa4 13.Ra1–/+; 10.Ba3 Qb3 11.Qb3 cb3 12.Bf8 Kf8 13.d4–/+; 10.Rb1 Nc5 11.Be2 0–0–0 12.0–0 Nd3 13.Ne4–/+; 10.Na2 Qb3 11.Qb3 cb3 12.Nc3 Bb4 13.d4–/+) 10...cd3! 11.Bd3 (11.Qd3 Qb2 12.Rb1 Qa3 13.Nd5–+; 11.Bd3 Nc5 12.Ba3 Nd3 13.Qd3–/+) 11...Bb3 (11...Nc5 12.Ba3 Nd3 13.Qd3–/+) 12.Qb1 Nc5 (12...Bc4 13.0–0+=) 13.Bh7 Ne7 (13...Na4 14.Bg6 Kd8 15.Nd2 Nc3 16.Qd3 Nd5 17.0–0+=) 14.0–0+= Bc4 (14...Ba4 15.Bg6 Kd8 16.Ra4 Na4 17.Rd1 Nd5 18.Nd5 (18.Rd5?! Bd6 19.Na4 Qa4+–) 18...Qb2 19.Nb6 Bd6 20.Na8 Qb1 21.Rb1+/– (worse is 21.Bb1 Nc3 22.Rd6 cd6–/+)) 15.Bg6 Ng6 16.Qg6 Bf7 17.Qc2 Qg4 18.Rfe1 0–0–0 19.e4 (better is 19.Ba3!?+=) 19...Bb3 20.Qe2 Nd3 21.h3 (21.Red1 Bd1 22.Rd1–+) 21...Qg6 22.Kh2 Bc5 23.Reb1 Nf4 24.Qf1 Bc4!! 0–1. Sicker,Rolf – Krasny,Henryk Jan, corr TKM/A007, 2000.

8.d3=+.

8.Nf3 a6 9.d4 cd3 10.Bd3 ab5 11.Bb5 Nd7 (11...Nc6 12.a4 Nge7 13.Ba3+=) 12.0–0 Ne7 13.Rfc1 Qb6 14.Rab1 c6 (worse is 14...Ba2 15.Ra1 Nc6 16.Nd5 Bd5 17.Ra8 Kf7 18.Bc4+/–) 15.Bd3 Bg8 (worse is 15...Ba2 16.Na2 e4 17.Be4 Ra2 18.Bd3+/–) 16.Nd2 Qa7 (16...Ba2? 17.Ra1+–) 17.Nde4 Nc8 18.a3 g6 19.Be2 Be7 20.a4 Be6 21.Ra1 Qa5 22.Nd5?? (better is 22.Nd2+=) 22...Qc3 (better is 22...Qd5 23.Bd3 Qb3–+) 23.Qc3 (better is 23.Nc7 Kf7 24.Bc3 Ncb6 25.Na8 Ra8+–) 23...Bb4 (23...cd5 24.Qb3 Kf7 25.Nc3+–) 24.Rc2 (better is 24.Nc7 Kf7 25.Qb4 Rb8 26.Nd6 Nd6 27.Qd6 Bf5 28.Bc4 Kg7 29.Ne6 Be6 30.Be6 Kh6 31.Bd7 Rbf8+–) 24...Bd5 (24...Bc3 25.Nc7 Kf7 26.Na8 Ba5+–) 25.Ba6 (25.Qb4 Be4 26.Qe4 Ncb6+–) 25...Ke7?? (25...Bc3 26.Bb7 Bb2 27.Rb2–+) 26.f3 (better is 26.Qb4 Kf7 27.Bb7 Rb8+–) 26...Ba2 (better is 26...Bc3 27.Bb7 Bb2 28.Rb2 Ra7 29.Bc8 Rc8–+) 27.Bb7 (better is 27.Qb4 c5 28.Rc5 Kf7 29.Bb7 Nc5 30.Nc5 Rb8+–) 27...c5 (27...Bc3 28.Ba8 (28.Bc3?! Bb3 29.Rb2 Ra4 30.Rb3 Ra1 31.Ba1 c5+–; worse is 28.Ra2 Rb8 29.Bc8 Rhc8 30.Rc3 Ke6+–; 28.Nc3?! Rb8 29.Bc6 Be6+–; 28.Rc3?! Ra4 29.Bc6 Ra5+–) 28...Bb2 29.Ra2+– (29.Rb2?! Bd5+–)) 28.Nc5 (better is 28.Qd3 Ra7 29.Bc8 Rc8 30.Ra2+–) 28...g5 (28...Bc3 29.Ba8 Bd5 30.Bd5 Bb2+–) 29.h3 +–. Buss,Michael – Kuhlmann,AEJ, email 4AMM–02, 1997.

6.Qc2 Nd7

7.Bc4 Bc4

8.Qc4 a6 9.d4 ab5 10.Qb5 c6 11.Qb3 ed4=.

8.Qc4 Nb6 9.Qb3 Qd5 10.Nf3 a6 11.Nc3 Qc4 12.Rc1 Bd6 13.d4 Ne7 14.Ne4 Qb4 15.Qb4 Bb4 16.Bc3 Ba3 17.Rc2 f5 18.Neg5 Nbd5 19.Bd2 (19.Ne5!? Nc3 20.Ne6 (20.Rc3? Bb4–+) 20...Nb5 21.Rc7+=) 19...e4 20.Ne5 0–0 21.g4 (21.f3 f4 22.Ne6 fe3+=) 21...Bd6= 22.ba6 Ra6 23.gf5 Rf5 24.Ne4 Be5 25.de5 Re5 26.f3 b6 27.Kf2 c5 28.Nd6 Nc6 29.a3 Nc7 30.Rb1 Re6 (worse is 30...Ra3 31.Nc4 Ra6 32.Ne5 Ne5 33.f4+=) 31.Ne4 ½–½. Lebel,Patrick – Jacewicz,Grzegorz, corr or01–022 E–mail, 2002.

8.Qc4 Nb6 9.Qe2 Bb4=.

8.Qc4 Nb6 9.Qe2 Qd7 10.Nc3 a6 11.a4 Bb4 12.Nf3 Ne7 13.0–0 Bc3 14.Bc3 ab5 15.ab5 0–0 16.d4 Ned5 17.Ba5 e4 18.Nd2 f5 19.f3 Qe6 20.fe4 fe4 21.Bb6 Ra1 22.Ra1 Nb6 23.Rf1 Re8 24.Qf2 Nd5 25.Ne4 Ne3 26.Qe3 Qe4 ½–½. Schwertel,Gottfried – Schirmer,Michael, TKM/SF/02, 2001.

8.Qc4 Nb6 9.Qh4 (9.Qe2 a6= 10.d4 Qd5 11.ba6 Qg2=) 9...Ne7 (9...Qd5 10.Qh5 g6 11.Qf3 Qb5 12.Bc3–/+) 10.Ne2 (10.Qh5 Ng6 11.Nf3 Qd3=+) 10...Qd3 (10...Qd5 11.Nbc3 Qg2–/+) 11.Qh5 Ng6 12.0–0 Qb5 13.Nf4?? Qb2–+ 14.Ng6 hg6 15.Qh8 Qa1 16.Nc3 Qb2 17.Qg8 0–0–0 18.Qe6 Kb8 19.Ne4 Qc2 (19...Qc2 20.Nc3 Bb4–+) 0–1. Eisert,G – Borrmann,Fritz, corr Dresden DDR, 1971.

8.Qc4 Bc5 9.Nf3 Ne7 10.0–0 c6 11.d4 cb5 12.Qb5 ed4 13.ed4 Bb6 (13...Qb6 14.Qe2 Bb4 15.Ba3+=) 14.Nbd2 0–0 15.Nc4 Rc8? (better is 15...Kh8!?+=) 16.Nd6+– (16.Nb6?! Nb6 17.Ba3 Re8=) 16...Rc7 17.Qb3 Kh8 18.Nf7 Rf7 19.Qf7 Rc2?? (better is 19...Nc6 20.Qh5 g6+–) 20.Rfe1 (20.Rae1 Qg8 21.Re7 Qf7 22.Rf7 Rb2+–) 20...Qf8 (20...Ne5 21.de5 Rb2 22.ef6 Qg8 23.Qe7 Bf2 24.Kh1 Bc5+–) 21.Qe7 Qe7 22.Re7 Nf8 (22...Kg8 23.Ba3 Ne5 24.de5 fe5 25.Rd1+–) 23.Re8 Kg8 (23...g5 24.Ba3+–) 24.Ba3 Kf7 25.Rf8 Kg6 26.Bc1 Kh5 (26...Ba5 27.Be3+–) 27.Be3 h6 28.d5 Rc7 (28...Be3 29.fe3 Rc7 30.e4+–) 29.Bb6 ab6 30.d6 Rd7 31.Rd1 Kg6 32.Re8 (better is 32.Nh4 Kh7+–) 32...Kf7 33.Re7! Re7 34.de7 Ke7 35.a4 h5 (35...b5 36.ab5 g5 37.b6+–) 36.Ne1 (36.Rb1 Kd7+–) 36...Ke6 37.Nc2 g5 (37...h4 38.Nd4 Ke5 39.Nf3 Ke6 40.Rb1+–) 38.Ne3 (38.Rb1 Kd5+–) 38...g4 (38...b5 39.a5+–) 39.Nc4 (39.Rb1 Ke5+–) 39...f5 (39...b5 40.ab5 h4 41.Rd6 Kf5 42.Ne3 Kg5 43.Rd5 Kg6 44.Ng4+–) 40.Rd6 Ke7 41.f4 (better is 41.Rb6!? f4 42.Rb7 Ke6+–) 41...h4 1–0. Jamieson,Ian M – Newton,Andrew, SCCA Premier, 2008.

8.Qc4 Rc8 9.d4 ed4 10.Qd4 Nc5 11.Nf3 c6=.

8.Qc4 f5 9.Nf3 e4 10.Nd4 Nc5 11.0–0 Nh6 (11...a6 12.Nf5 Nf6 13.Ng7 Bg7 14.Qc5 Rg8+–) 12.Ba3+/– b6 13.Bc5 Bc5 14.Nf5?? (better is 14.Ne6 Qd7 15.d3 ed3 16.Rd1+/–) 14...Nf5–/+ 15.Qe4 Ne7 16.d4 Bd6 17.Nc3 0–0 18.Qe6 Kh8 19.e4 c6 20.bc6 Nc6 21.Nb5 Rf6 22.Nd6 Qd6 23.Qd6 Rd6 24.d5 Nd4 25.f3 Kg8 26.Kf2 Nc2 27.Rac1 Rc8 28.f4 Rdd8 29.Rfd1 Kf7 30.Rd2 Na3 31.Rc8 Rc8 32.d6 Rc2 33.Rc2 Nc2 34.e5 Ke6 35.Ke2 Nb4 36.a3 Nc2 37.a4 h5 38.g3 Nd4 39.Kd3 Nf5 40.Kc4 a6 41.Kd3 g6 42.Ke4 Nh6 (42...b5 43.a5–/+) 43.Kd4 Ng4 44.h3 Nf2 45.g4? (45.a5 ba5 46.Kc5 Nd3 (46...Nh3?? 47.Kc6 g5 48.d7 gf4 49.d8Q Ke5 50.Qa5 Ke4 51.Qh5+–) 47.Kc6 Nb4 48.Kc7 Nd5 49.Kc6 h4=) 45...Ng4 (better is 45...hg4 46.hg4 Ng4 47.Ke4–+) 46.hg4 hg4 47.Ke3 b5 48.ab5 ab5 (48...ab5 49.Ke4 b4–+) 0–1. Dopper,Johan C – Van Embden,Alexander, corr, 1991.

8.Qc4 f5 9.Nf3 e4 10.Ne5 Ne5 11.Be5 Qg5=.

8.Qc4 f5 9.Nh3 a6=.

8.Qc4 Bd6

9.Nc3 a6 10.Nf3=+.

9.Nc3 Ne7 10.Nf3= Nb6 (10...a6 11.0–0=) 11.Qe4 (11.Qg4 0–0=) 11...Qc8 (11...c6 12.0–0=) 12.d4 (12.0–0 a6+=) 12...f5 (12...ed4 13.Nd4 Nc4 14.Rb1=) 13.Qc2 e4 14.Nd2 0–0 (14...Qd7 15.0–0=) 15.Qb3 Rf7 (15...Kh8 16.0–0=) 16.Nc4 (16.0–0 a6=) 16...Nc4 17.Qc4 Qd7 18.Rc1 (18.0–0 a6=) 18...h6 (18...a6 19.ba6 Ra6 20.0–0=) 19.f3 (19.0–0 a6=) 19...ef3 20.gf3 Re8 21.Kf2 (21.e4 fe4 22.fe4 Ref8=) 21...Ng6 22.Nd5 Qd8 23.Rc3 (23.Rcg1 Qh4 24.Ke2 Ne5+=) 23...Qh4 24.Kg2 Rd8 (24...Qg5 25.Kf2–/+) 25.f4 (25.Nb4 Qh5 26.Kf2 Nh4–+) 25...Ne7 (25...Qg4 26.Kf2+=) 26.Ne7 (26.Nc7 Bc7 27.Qc7 Nd5–/+) 26...Be7 (26...Qe7 27.Rd1=) 27.Rf1 (27.Rhc1 Qg4 28.Kh1 Qf3 29.Kg1 Rd6–+) 27...g6 (27...Qg4 28.Kh1=) 28.Rf3 (28.Qc7 Bb4 29.Qc4 Qg4 30.Kh1 Bc3 31.Bc3 Qh3–/+) 28...c5 (28...Qe1 29.a3=) 29.bc6+= bc6 30.Qc6 The passed pawn on d4 will become decisive later 30...Rd6 (30...Qg4 31.Kh1+=) 31.Qc4 (31.Qa8 Bf8+/–) 31...Rb6 32.Rc2 Bf6 (32...Kg7 33.d5 Bf6 34.Bf6 Qf6 35.Qc8+=) 33.Rh3+/– Qe1 (better is 33...Qg4!? 34.Rg3 Qh5+/–) 34.Rh6+– Bg7 35.Rh3 Qb1 36.Ba3 Rb8 (36...Qe1 37.Qf1 Qf1 38.Kf1+–) 37.Rg3 (37.Bd6 Qb7 38.Kg1 Rd8+–) 37...Kh7 (37...Qb7 38.Kg1 Qe4 39.Rb2 Rb2 40.Bb2+–) 38.Kf2 (38.Bd6 Qb7 39.Kf2 Rh8+–) 38...Rbb7 (38...Rfb7 39.Bd6 Rh8 40.Rh3 Bh6 41.Bc7+–) 39.Rh3 Bh6 40.Bd6 Qb6 (40...Qd1 41.Kg2+–) 41.Be5 Qd8 42.Qe2 (42.Kg2 g5+–) 42...Rfd7 43.Qf3 Qf8 44.Qc6 (44.Kg2 Qe7+–) 44...Rf7 (44...Qe7+–) 45.Qc8 Rbd7 46.Qa6 (46.Qf8!? Rf8 47.Kf3 Re8+–) 46...Rb7 47.Rc6 Rb2 48.Kf3 (48.Kg3 Qg8+–) 48...Rb6 (48...Qg8 49.Rc8 Rb6 50.Rg8 Kg8 51.Rh6+–) 49.Qc4 (49.Rb6!? ab6 50.Qb6 Qa8 51.Kg3 Qe4+–) 49...Rc6 50.Qc6 Re7 51.d5 (51.d5 Qd8 52.Bf6+–) 1–0. Waibel,Ulrich – Wannagat,Danny, compuserve, 1995.

9.Nf3 a6 10.0–0=.

9.Nf3 Rc8 10.0–0 Nb6 11.Qe4 c6 12.d4 Nd7 (12...cb5 13.de5 Qe7 14.Bd4=) 13.Nbd2 (13.de5 Qe7+/–) 13...Qe7 14.Nc4 Bb8 (14...cb5 15.Nd6 Qd6 16.de5 fe5 17.Qb7+/–) 15.bc6+/– Rc6 16.Ba3 (16.de5 Qe6 17.Rfc1 b5 18.Qc6 Qc6 19.Nd6 Qd6 20.ed6 Bd6+–) 16...Qf7 17.Na5 (17.d5 Nc5 18.Bc5 Rc5 19.Rfd1=) 17...f5= 18.Qh4 Rh6 19.Rfc1 The mate threat is Rc8 19...Nb6 (19...Bc7 20.Rc7 Qd5+–) 20.Qg3+= (20.Qg3 Rg6 21.Ne5+/–) 1–0. Dopper,Johan – Van der Meiden,M, corr, 1989.

9.Nf3 Ne7 10.0–0 a6 11.Nc3 Nb6=.

5.c4 c6

6.Qb3 a6 7.a4 Nd7 8.d4 Bd6 9.Nc3 Qa5 10.Nf3 e4 11.Nd2 Bb4 12.Be2 Ne7 13.0–0 0–0 14.Qc2 Qc7 15.Qb3 Bc3 16.Bc3 ab5 17.cb5 Rab8 18.Ne4!+– Bf7 19.Nc5?? b6?? 20.Na6+– Qb7 21.Nb8 Rb8 22.Bg4 c5 23.Bd7 Qd7 24.Rfc1 c4 25.Qb4 Ng6 26.a5 ba5 27.Qa5 Qg4? 28.Qc7 Rf8 29.b6 Nh4 30.Qg3 Qh5 31.b7 Nf5 32.Qf3 Qg6 33.Rcb1 Nh4 34.Qg3 Qd3 35.b8Q Qc3 36.Qb2 (36.Qb2 Qb2 37.Rb2+–; 36.Qf8 Kf8 37.Qd6 Kg8 38.Qd8 Be8 39.Qe8) 1–0. elsh1403 – niluk, internet, 2011.

6.Qb3 dc4 7.Bc4 Bc4 8.Qc4 Qd5 9.Qd5 cd5 10.Nc3 Ne7 11.Nf3 Nd7 12.Rc1 Nc5 13.Ba3? Nd3–/+ 14.Kd1? Nf2 15.Ke2 Nh1 16.Rh1 0–0–0 17.Rc1 Kb8 18.Bb4 d4 19.ed4 ed4 20.Ne4 Nd5 21.Bc5 Bc5 22.Nc5 Nf4 23.Kf2 b6 24.Na6 Kb7 25.Rc7–/+ Ka8 26.Rg7 Rhg8 27.Nc7 Kb8 28.Na6 Ka8 29.Nc7 Kb7 30.Na6?? Rg7–+ (30...Rg7 31.g3 Nd3 32.Kf1 Re7–+) 0–1. elsh1403 (1625) – vejtaha, internet, 2011.

6.Qc2 Bd6 7.d4 (7.c5 Bc7 8.Nf3 (8.d4 Nd7 9.Nf3 Ne7 10.Be2 Bf5 11.Qd1=; 8.Nc3 Ne7 9.Nf3 0–0 10.Be2 Nd7 11.d4=) 8...Ne7 9.d4 e4 10.Nfd2 f5 11.Be2=) 7...e4 (7...Bb4 8.Bc3 Bc3 9.Qc3 ed4 10.ed4= Ne7 11.Nf3=+; 7...Ne7 8.c5 (8.de5 fe5 9.c5 Bc7 10.Nf3 Bf5 11.Qd1=+; 8.cd5 cd5 9.de5 fe5 10.Nf3 Nd7 11.Ng5=+) 8...Bc7 9.Nf3 Bf5 10.Qa4 Nd7 11.Be2=; 7...dc4 8.Bc4 Bb4 9.Ke2 Qe7 10.Be6 Qe6 11.de5=; 7...Nh6 8.de5 (8.cd5 cd5 9.Nc3 Nd7 10.Rd1 Nb6 11.e4=+; 8.c5 Bc7 9.Qa4 cb5 10.Qb5 Qd7 11.Nc3=) 8...fe5 9.Nf3 Nf7 10.c5 Bc7 11.Nbd2=) 8.c5 (8.Nd2 Ne7 9.a4 Nd7 10.Ba3 Ba3 11.Ra3=) 8...Bc7 9.Nc3 (9.Qa4 cb5 10.Bb5 Nd7 11.Nc3=) 9...Ne7 10.Qb3 f5 (10...Qc8 11.f3=) 11.Nh3 0–0 12.Be2 Nd7 13.Rb1 h6 14.Nf4 Bf7 15.0–0 g5 16.Nh3 Nf6 17.Kh1 f4 18.ef4 gf4 19.Bc1 Ng6 20.f3 e3 21.Bd3 Nh4 (21...Re8 22.bc6 bc6 23.Ne2=) 22.bc6 bc6 23.Qa4 Qd7 24.Rb7 Nh5 25.Ng1 (worse is 25.Ra7 Ra7 26.Qa7 Be6–/+) 25...Be6 26.Re1 (26.Ra7?? Qg7 27.Qc2 Ra7–+) 26...Kh8 27.Bf1 Rg8 28.Ba3 (worse is 28.Ra7 Ra7 29.Qa7 Qg7–/+) 28...Rg5 29.Ra7 Ra7 30.Qa7 Qg7 31.Qa8 Kh7 32.Bd3 (32.Qc6 Rg2 33.Bd3 Kh8 34.Qe8 Bg8 35.Bg6 Rg6 36.Qg6 Qg6 37.Re2–+) 32...Bf5–/+ 33.Bf5 Nf5 34.Qc8 (34.Nge2 Nhg3 (34...Nd4 35.Qa4 Ne2 36.Ne2=; 34...Rg2?! 35.Qc8 Nd4 36.Qh3–+) 35.Kg1 Ne2 36.Re2 Nh4–+) 34...Nh4 35.Nge2 Rg2 36.Qh3 Bd8 37.Rf1 Qg5 38.Rg1 Rg1 39.Ng1 Ba5 40.Bb2 Ng7 41.Nce2 Ngf5 42.Nc1 Qg7 43.Nd3 Qb7 44.Qf1 Qb5 45.Qd1 Qc4 46.Qb3 (46.Ne2 Qa2 47.Nef4 Bd8–/+) 46...Bc7 (46...Nd4 47.Qb7 Kg8 48.Qc8 Kg7 49.Qd7 Kf6 50.Nf4+–) 47.Ne1 Kg6 (47...Qb3 48.ab3 Kg6 49.Ne2–/+) 48.Qc4 (48.Qa3 Qb5+= (worse is 48...Nd4 49.Qa8 Be5 50.Qe8 Kf6 51.Qd8 Kg6 52.Qh4+/–)) 48...dc4–/+ 49.Bc3 Ne7 50.Nc2 Nd5 51.Be1 Kg5 52.Bh4 Kh4 53.Ne2 Kg5 54.Kg2 Ba5 55.Na3 Nc3 56.Ng1 e2 57.Nc2 e1Q 58.Ne1 Na2 59.Nc2 Nb4 60.Na3 c3 61.Ne2 Nd5 62.Nc2 Kf5 63.Kf1 Ne3 64.Ne3 fe3 65.d5 cd5 66.Nd4 Kf4 67.Ke2 Bb4 68.c6 Ba5 69.Kd3 Bb6 70.Nc2 Ke5 (worse is 70...Kf3 71.Ne3 c2 72.Nc2+=) 71.Ne3 (worse is 71.Kc3 d4 72.Kd3 Kd6–+) 71...Ke6 72.Nc2 d4 73.Nb4 Bc5 74.Na6 Bd6 75.h3 Ke7 ½–½. Karpenko,Aleksandr D – Mukhin,Andrey V, RUS–Cup3 email, 2003.

6.cd5+= Bd5 7.Nc3 Be6 8.Be2 Ne7 (8...Bd6 9.Nf3+=) 9.Bf3 (9.Nf3 cb5 10.Bb5 Kf7+=) 9...Qd7 (9...a6 10.bc6 Nbc6 11.Nge2=) 10.d3 (10.d4 ed4 (worse is 10...cb5 11.de5 Nec6 12.ef6+/–) 11.Qd4 A) worse is 11...cb5 12.Qd7 Nd7 13.Nb5+/– (worse is 13.Bb7 Rb8 14.Ba6 Bc4+=); B) 11...Qd4 12.ed4 Nd7=) 10...Ng6 11.Nge2 (11.Qa4!?+=) 11...Nh4–/+ 12.Ng3 Nf3 13.Qf3 Be7 (13...cb5 14.e4–/+) 14.0–0 0–0 15.a4 Kh8 (15...Qd3 16.Ba3 Rc8 17.Rfd1 Qc3 18.Be7+=) 16.h3 (16.Ba3 Ba3 17.Ra3 Qd3+=) 16...Rd8 (16...Qd3 17.Ba3 Rc8 18.Rfd1 Qc3 19.Be7+=) 17.Rfd1+= Qc8 (17...cb5 18.ab5 Bb4 19.Nge2=) 18.Qe2 (18.d4 ed4 19.ed4 Qd7=) 18...Nd7 19.Ba3 Bf8 (better is 19...Nc5=) 20.Rac1?? (20.Bf8 Nf8 21.d4 cb5 22.Nb5 Bc4+=) 20...b6 (better is 20...Ba3 21.Rc2 Bb3–+) 21.Qb2 (21.Bf8 Nf8 22.d4 cb5+/–) 21...Qb7 (21...Ba3 22.Qa3 a6 23.bc6 Qc6 24.d4 ed4 25.Nb5+=) 22.Nce4 (22.Bf8 Nf8 23.d4 Rac8+=) 22...Bd5 (22...Ba3 23.Qa3 cb5 24.ab5=) 23.f3 (better is 23.Bf8 Nf8 24.Nc3=) 23...Be6?? (23...Ba3 24.Qa3 cb5 25.ab5=) 24.Nd2?? (better is 24.bc6 Ba3 25.Qa3+– (25.cb7?! Bb2 26.ba8R Ra8+–)) 24...Rac8 (24...Ba3 25.Qa3 cb5 26.ab5+=) 25.Nc4 (25.Bf8 Rf8 26.d4 c5=) 25...Qb8 (better is 25...Ba3 26.Qa3 Nc5+=) 26.Qe2? (26.Bf8 Nf8 27.Qb4 Ng6=) 26...Re8?? (better is 26...cb5!? 27.Bf8 bc4–/+ (27...Rf8?! 28.ab5 Rc5 29.Qb2=)) 27.Bb2 (27.Bf8 Rf8 28.Ne4 Rc7+=) 27...Rcd8 (27...Nc5 28.Qc2+=) 28.Qf2 (28.bc6 Nc5 29.Ne4 Qc7+=) 28...Be7 (28...cb5 29.ab5 Nc5=) 29.f4 (better is 29.bc6!? Nc5 30.d4+=) 29...ef4 (29...Nc5 30.d4 Na4 31.bc6 Nb2 32.Nb2 ed4 33.Rd4+=) 30.ef4 Bd5 (30...Qc7 31.bc6 Nc5 32.Qf3=) 31.Nf5 (31.bc6 Bc6 32.Nb6+=) 31...Nf8 (31...Bc5 32.d4 Bb4 33.Qg3=) 32.Re1 (32.Ne7 Re7 33.bc6 Bc6=) 32...Ne6 (32...Bb4 33.Re8 Re8 34.bc6=) 33.Ne7 (better is 33.bc6 Bb4 34.Nd2+=) 33...Nf4?? (33...Re7 34.bc6 Bc4 35.Rc4 Qd6+/–) 34.Nd5 (34.Nc6 Re1 35.Re1 Nd3 36.Nb8 Nf2+–) 34...Re1 35.Re1 (35.Qe1 cd5 36.Nd2 Nd3–/+) 35...Nd3 36.Qe2 (36.Be5 fe5 37.Qe2 Ne1 38.Ne7–/+) 36...Ne1+/– 37.Nf6! (37.Qe1?! cd5 38.Nd2 Qf4+=; 37.bc6?! Rd5 38.Qe1 Qc8+/–) 37...Qg3? (37...gf6 38.Bf6 Theme: Double Attack) 38.Nh5+– (38.bc6 Ng2 39.Qg4 Rd1 40.Qd1 Ne3 41.Kh1 Qg2) 38...Qh4?? (38...Qg6+–) 39.Bg7 Kg8 40.Qe6 1–0. Sternik,Ryszard – Len,Katarzyna, Olsztyn Poland, 1990.

6.Nf3 Qb6 7.Nc3 dc4–/+ 8.Qa4 c5 9.Bc4+= Bd7 10.Nd5 Qd8 11.0–0 b6? 12.Qb3 Nh6 13.Rfe1 a6 14.d4 Bd6? 15.de5+– fe5 16.Ne5 a5 17.a4 Be5 18.Be5 0–0 19.Qb2 Be6 20.Bg7 (20.Bg7 Ra7 21.Bf8 Qf8 22.Nb6+–) 1–0. gtate (1960) – kenc (1900), net–chess.com, 2006.

6.Nf3 dc4 7.Qa4 Qd7 8.Nc3 –/+.

6.Nf3 Ne7 7.d4 (7.c5 a6 8.bc6 Nbc6=) 7...e4 (7...dc4 8.de5 Qd1 9.Kd1 fe5 10.Ne5 cb5 11.a4=) 8.Nfd2= dc4 9.Nc3 Nd5 10.bc6 Nc6 11.Bc4 Nc3 12.Bc3 Bc4 13.Nc4 Qd5 14.Qb3 Rd8 (14...Rc8 15.Rc1=) 15.Nd2 Qb3 16.ab3 f5 17.g4 fg4 18.Ne4 a6 19.Rg1 h5 20.Ke2 Rd7 21.Rad1 Bb4 (21...Rd5!?+=) 22.d5+/– Bc3 23.dc6 Rd1 24.Rd1 Be5 25.cb7 Bh2 26.Nc5 a5 27.Ra1 Ke7 28.Ra5 h4? (better is 28...Rb8+/–) 29.Ra8+– Rd8 30.Na6 h3 31.Nb4 Kd7 32.e4 Re8 33.Re8 Ke8 34.Na6 Be5 35.Kf1 Kf7 36.b8Q Bb8 37.Nb8 Ke6 38.Na6 Ke5 39.Nc5 Kd4 40.b4 Kc4 41.Ne6 Kd3 42.b5 Ke4 43.b6 Kd5 44.b7 Ke6 45.b8Q Kf5 46.Qf8 Kg6 47.Ke2 Kh6 48.Qf5 h2 49.Qf4 g5 50.Qh2 Kg6 1–0. Mephisto Mondial – REXChess, 1994.

6.a4 dc4!?

7.Qc2–/+ cb5 8.ab5 Qc7 9.d3 Bb4 10.Bc3 cd3 11.Bd3+=.

7.Qc2 cb5 8.ab5 Qc8–/+.

7.Nc3 A) 7...Bb4 8.Rc1 (8.d3 cd3 9.Bd3 a6 10.Nge2 ab5 11.ab5–/+; 8.d4 ed4 9.Qd4 Qd4 10.ed4 a6 11.ba6–/+; 8.Nf3 Qd7 9.Be2 cb5 10.ab5 Bc3 11.Bc3–/+; 8.Qh5 g6 9.Qh4 Be7 10.Rd1 cb5 11.ab5–/+) 8...Qa5 9.Bc4 Bc4 10.Qg4 Bd5 11.Qg7=; B) 7...Qa5 8.Nf3 Bb4 9.Qc2 Ne7 10.Qe4 Nf5 11.Qg4–/+; C) 7...Nh6 8.Nf3 (8.d3 cd3 9.Bd3 Nd7 10.bc6 bc6 11.Be4–/+; 8.d4 ed4 9.Qd4 Qd4 10.ed4 Bb4 11.Nge2–/+) 8...cb5 9.ab5 Nd7 10.d3 cd3 11.Bd3–/+; D) 7...cb5 8.ab5 Nd7 9.d4 cd3 10.Bd3 Bb4 11.Qh5–/+; E) 7...Bd6 8.d3 cd3 9.Bd3 Ne7 10.Nf3 a6 11.0–0+=; F) 7...a6 8.d4 (8.d3 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Nb5–+; 8.bc6 Nc6 9.d3 cd3 10.Bd3 Nb4 11.Be4–+) 8...ab5 9.ab5 Ra1 10.Ba1 cb5 11.Nb5–/+.

7.d3 cb5 (7...cd3 8.Bd3 a6 9.Nc3 Bb4 10.Nge2 ab5 11.ab5–/+; 7...Bb4 8.Bc3 Bc3 9.Nc3 cd3 10.Bd3 Ne7 11.Nf3–/+; 7...Qa5 8.Bc3 Bb4 9.Qd2 Bc3 10.Nc3 cd3 11.Bd3–/+) 8.ab5 cd3 9.Bd3 Nd7 10.Nc3 Bb4 11.Qh5–/+.

7.d4 A) 7...cb5 8.ab5 ed4 9.Qd4 Qd7 10.Qe4 f5 11.Qe5+=; B) 7...Bb4 8.Bc3 Qa5 9.Bb4 Qb4 10.Qd2 a5 11.Nc3–/+; C) 7...cd3 8.Bd3 a6 9.Nc3 Bb4 10.Nge2 ab5 11.ab5–/+; D) 7...Qa5 8.Bc3 (8.Qd2 Bb4 9.Bc3 Bc3 10.Nc3 ed4 11.ed4–/+; 8.Nc3 Bb4 9.Qd2 ed4 10.ed4 Ne7 11.Nf3–+) 8...Bb4 9.Bb4 Qb4 10.Qd2 a5 11.Nc3–/+; E) 7...Nh6 8.Nd2 Bb4 9.Rc1 cb5 10.ab5 0–0 11.Bc4+=; F) 7...Be7 8.de5 (8.Nc3 ed4 9.Qd4 Qd4 10.ed4 Bb4 11.Nf3–/+; 8.Nd2 Qa5 9.Rc1 cb5 10.ab5 Qb5 11.Bc4–/+; 8.Qc2 Bb4 9.Bc3 Bc3 10.Qc3 ed4 11.ed4+=; 8.Qh5 g6 9.Qe2 a6 10.ba6 Na6 11.de5–/+) 8...Qd1 9.Kd1 a6 10.ba6 Na6 11.Nd2+=; G) 7...ed4 8.Qd4 (8.ed4 Bd5 9.Nd2 cb5 10.ab5 Bb4 11.Ba3–/+) 8...Qd4 9.Bd4 Bb4 10.Bc3 a5 11.Nf3–/+.

6.a4 Bd6

7.cd5 cd5 8.d4 e4 (8...Nd7 9.Nc3+=) 9.g3 (9.Ba3 Bc7=) 9...Ne7+= 10.Bh3 Bh3 11.Nh3 Qd7 12.Nf4 Bf4 13.ef4 (13.gf4 0–0+=) 13...0–0–/+ 14.0–0 Qh3 (14...a6!? 15.Nc3 ab5 16.ab5 Ra1 17.Qa1 Rc8+=) 15.Ba3 Rf7 16.Nc3 Nd7 (16...Qe6!?+=) 17.Be7+/– Re7 18.Nd5 Rf7 19.Qc2 f5 20.f3 Nf6 (20...ef3!? 21.Rf3 Re8+–) 21.Nf6+– Rf6 22.fe4 fe4 23.Qe4 (23.Rfe1 Re6+–) 23...Rh6 (better is 23...Qd7+–) 24.Qd5 Kh8 25.Ra2 Re8 (25...Qe6 26.Qe6 Re6 27.Rc1+–) 26.Qb7 Rhe6 (26...Qe6 27.Raf2+–) 27.Qa7 h5 (27...Re1 28.Raf2+–) 28.Qd7 Qg4 (28...R8e7 29.Qd8 Re8 30.Qh4+–) 29.d5 1–0. DEFFM – GuestNJNT, freechess.org, 2017.

7.cd5+= cd5 8.Nf3 Ne7 9.Be2 0–0? 10.0–0? Nd7 11.d3 f5 (11...Rc8 12.a5+=) 12.Nbd2 (12.Ng5 Bf7=) 12...h6 13.d4 e4 14.Ne5 f4 15.ef4 Rf4 16.g3 Rf8 17.Bg4 Nf5 18.Qe2 Qf6 (18...Ne5 19.de5 Bb4 20.Nb3+=) 19.Nd7 Bd7 Attacking the isolated pawn on d4 20.Bf5 Bf5 21.Qe3 (21.f3 Bh3 22.Rf2 Bb4 23.Ne4 de4 24.Qc4 Rf7 25.Qb4 e3–+ (25...ef3?! 26.d5 Qg6 27.Re1=)) 21...Bh3 22.Rfc1 Rac8 23.Rc8 Rc8 24.Rc1 Rc1 25.Bc1 Qd8 26.Qb3 Bc7 (better is 26...Qg5–/+) 27.Ne4+= Kh8 28.Nc5 Qe7 (28...b6 29.Nd3+=) 29.Be3 (29.Qe3 Qf8+/–) 29...b6+= 30.Na6?? (better is 30.Nd3 Qe4 31.Ne1+=) 30...Qe4 31.f3 Qf3 32.Qc2 (32.Nc7 Qg2) 32...Qf1 0–1. GuestVPPL – hoelderlinfics, freechess.org, 2017.

6.a4 Nd7

7.d3 A) 7...a6 8.Nd2 (8.bc6 bc6 9.cd5 cd5 10.d4 Rb8 11.Bc3+=; 8.cd5 Bd5 9.e4 Be6 10.d4 Bb4 11.Nd2+=; 8.Qh5 Bf7 9.Qd1 ab5 10.cb5 cb5 11.ab5–/+; 8.Be2 ab5 9.cb5 cb5 10.ab5 Ra1 11.Ba1+=; 8.Nc3 d4 9.ed4 ed4 10.bc6 bc6 11.Qe2+=; 8.Nf3 ab5 9.cb5 Bb4 10.Bc3 Qa5 11.Qd2+=; 8.d4 dc4 9.bc6 bc6 10.Nf3 Rb8 11.Bc3+=) 8...ab5 9.ab5 Ra1 10.Qa1 Bb4 11.Bc3+=; B) 7...Nh6 8.Nf3 (8.bc6 bc6 9.Nf3 Rb8 10.cd5 cd5 11.Bc3+=; 8.Nc3 d4 9.ed4 ed4 10.Qh5 g6 11.Qe2+=; 8.Be2 dc4 9.dc4 Nc5 10.Nc3 e4 11.a5+=) 8...Be7 9.Be2 cb5 10.ab5 dc4 11.dc4=; C) 7...Bb4 8.Bc3 Ba5 9.Nf3 Ne7 10.Be2 cb5 11.ab5=; D) 7...Bc5 8.cd5 (8.d4 ed4 9.bc6 Bb4 10.Nd2 bc6 11.Bd4+=) 8...cd5 9.d4 Bd6 10.Nc3 Ne7 11.de5+=; E) 7...Rc8 8.Nd2 (8.Be2 dc4 9.dc4 Nb6 10.Qb3 cb5 11.Qb5+=; 8.Nf3 Bb4 9.Bc3 Bc3 10.Nc3 Qa5 11.Qd2+=; 8.Nc3 Bb4 9.Qb3 Qa5 10.Nf3 dc4 11.dc4–+; 8.Bc3 dc4 9.dc4 Nc5 10.Qd8 Rd8 11.a5+=) 8...Bb4 9.Ngf3 Nc5 10.Ba3 Ba3 11.Ra3=; F) 7...Bd6 8.Be2 (8.Nf3 Ne7 9.Be2 Qc7 10.Nbd2 0–0 11.Rc1+=) 8...dc4 9.dc4 Nb6 10.Qb3 a6 11.Nf3=; G) 7...Qc7 8.cd5 (8.Nd2 dc4 9.dc4 Rd8 10.Ngf3 Bb4 11.Ba3+=; 8.Nc3 dc4 9.dc4 Nb6 10.Qh5 Qf7 11.Qf7–/+) 8...cd5 9.Nd2 Qa5 10.d4 Rc8 11.de5=; H) 7...Qa5 8.Bc3 (8.Qd2 Qd2 9.Nd2 Bb4 10.bc6 bc6 11.Ba3+=) 8...Qc7 9.cd5 cd5 10.a5 Bd6 11.b6+=; I) 7...Ne7 8.Nf3 (8.Be2 dc4 9.dc4 Nc5 10.Nd2 Nd3 11.Bd3+=; 8.Nc3 dc4 9.dc4 Qa5 10.Qd2 Nc5 11.Ne4+=) 8...dc4 9.dc4 Nc5 10.Nbd2 a6 11.e4+=; J) 7...cb5 8.ab5 Nb6 9.cd5 Nd5 10.d4 Bb4 11.Nd2+=; K) 7...dc4 8.dc4 Qc7 9.Nf3 cb5 10.cb5 Bb4 11.Nfd2+=.

7.cd5 cd5 8.Be2 (8.Nf3 Rc8 9.Be2 Bd6 10.0–0 Ne7 11.Ba3=; 8.d4 Rc8+= 9.de5 fe5 10.Nf3 Bb4 11.Nbd2+=) 8...Rc8 9.Nf3 Bb4 10.0–0 Ne7 11.d4=.

7.Nf3 dc4 8.bc6 bc6 9.Ba3+= Bd5 10.Bf8 Kf8 11.Na3+=.

7.Nf3 Bd6 8.Na3 (8.bc6 bc6 9.cd5 (9.Ba3 Ba3 10.Na3 Ne7 11.Rb1+=) 9...cd5= 10.Ba3 Ba3 11.Na3+=; 8.cd5 cd5 9.Be2 Nh6 10.0–0 0–0 11.Ba3=; 8.Ba3 Ba3 9.bc6 bc6 10.Na3 Ne7 11.Rb1+=; 8.d3 a6 9.Be2 ab5 10.ab5 Ra1 11.Ba1+=) 8...Ne7 9.Be2 (9.bc6 Nc6 10.Rc1 Rc8 11.Nb5+=) 9...0–0 10.0–0 (10.Rc1 Qb6 11.0–0+=) 10...Ng6 (10...Rc8 11.Rc1+=) 11.d4 (11.bc6+=) 11...e4 12.Nd2 f5 13.g3 (13.c5 Bc7=) 13...f4 (13...Bb4 14.bc6 bc6 15.Nc2=) 14.ef4 Bf4 (14...Qf6!? 15.bc6 bc6+=) 15.Re1 (better is 15.gf4 Nf4 16.Kh1+/–) 15...Qf6 (15...Qf6 16.Bf1 Bc7–/+) 0–1. Krumphanzl,V – Elagin,P, corr ICCF EU/M/GT/266 (year?).

6.Qb3 Nd7

7.d4 a5 8.a4 Bb4 9.Nc3 Ne7 10.Nf3 0–0 11.Be2 e4 12.Nd2 f5 13.0–0 f4 14.ef4 Rf4 15.cd5 cd5 16.g3 Rf6–/+ 17.f3 e3 18.Ndb1 Qb6 19.Nd1 Nf5 20.Qd3 Nc5?? 21.dc5+– Bc5 22.Nbc3 Rd8 23.Rc1 Rg6 24.g4 Nh4 25.f4?? Bg4–+ 26.Bg4 Rg4 27.Kh1= Qe6 28.Ne2 Bd6?? 29.Ne3+– Rg6 30.Ng3 Re8?? 31.Rce1 Rg3= 32.hg3 Qh6?? 33.Ng4+– Qh5 34.Qd4 Re1 35.Qg7 1–0. elsh1403 – sakkmat, internet, 2011.

7.d4 Bd6 8.a4 Ne7 (8...ed4 A) 9.Bd4 Qa5 (9...Ne7 10.Nf3 c5 11.Bc3 Ne5 12.Ne5 Be5+=; 9...a6 10.bc6 bc6 11.Qb7 Qb8 12.Qb8 Rb8+=; 9...Rc8 10.bc6 bc6 11.Nc3 Qa5 12.Qb7 Rc7+=) 10.Nd2 Bb4 11.Ngf3 c5 12.Bb2 Nb6+=; B) 9.bc6 bc6 10.Bd4 Rb8 11.Qc2 c5 12.cd5 Bd5+=; C) 9.ed4 dc4 (9...Qe7 10.c5 Bf5 11.Ne2 Bc7 12.Nbc3 Qd8=) 10.Bc4 Bc4 11.Qc4 Rc8 12.Qe2 Ne7=) 9.Ba3 (9.c5 Bc7+= (9...Bb8 10.Bd3 b6 11.cb6 Nb6 12.Nd2 Bd6=) 10.Nf3 0–0 11.Bd3 Kh8 12.Nfd2 Qb8=) 9...Ba3–/+ (9...Qa5 10.Nd2 c5 11.Ngf3 Rd8 12.Ra2 e4+=; 9...c5 10.Nd2 Qb6 11.Rd1 ed4 12.ed4 cd4+=) 10.Ra3 (10.Na3 Qa5 11.Kd1 Nb6 12.c5 Nd7+=) 10...0–0 (10...c5 11.de5 Ne5 12.cd5 Nd5+= (12...Qd5 13.Nd2+=); 10...cb5 11.ab5 dc4 12.Bc4 Bc4+=) 11.Nf3+= e4 (11...Qa5 12.Qc3 Qc7+=) 12.Nfd2 f5 13.g3 (13.Nc3 Nf6=) 13...Qe8 (13...c5 14.Nc3+=) 14.Nc3 Qf7 15.c5 f4 (15...Nc5 16.dc5 d4 17.Bc4 Bc4 18.Nc4 dc3 19.Qc3+=) 16.ef4 (16.gf4 b6 17.cb6 ab6 18.bc6 Nc6+=) 16...g5 (16...b6 17.Qb4=) 17.Ne2+= Ng6 18.Qe3 (18.f3 gf4 19.gf4 Nf4 20.Rg1 Kh8+=) 18...gf4 19.Nf4 Nf4 20.gf4 Qf4 21.Be2 Kh8 22.Qf4 Rf4 23.bc6 (23.Rg1 Raf8 24.Rg2 Rg8 25.Rg8 Kg8+=) 23...bc6= 24.Rb3 Rb8 25.Rg1 Rh4 26.Rb8 Nb8 27.Nf1 Nd7 28.Rg3 Rh3 29.Kd2 Nf6 30.Ke3 (30.a5 Rg3 31.hg3 Kg7+=) 30...Rh4= 31.a5 Nh5 (31...Ne8 32.Kd2 Ng7 33.Rb3=) 32.Bh5+= Rh5 33.Kd2 Bc8 34.Rb3 Ba6 35.Ng3 (35.Rb8 Kg7 36.Ng3 Rh2=) 35...Rh2 36.Ke3 (better is 36.Rb8!? Kg7 37.Ke3=) 36...Bb5–/+ 37.Ne4? (better is 37.Rb2!?–/+) 37...de4–+ 38.Rb5 cb5 39.c6 (39.d5 Rh1 40.d6–+) 39...Rh3 40.Ke4 b4 41.f3 (41.d5 Rc3 42.Kd4 Rc1–+) 41...Rh1 42.d5 (42.Kd3 Rc1 43.Kd2 Rc6 44.d5–+) 42...b3 43.c7 Rc1 0–1. Gibbons,Robert (2200) – Harp,Joel, Australian op, 1999.

7.d4 Bd6 8.c5 Bc7= A) 9.Bd3 Ne7 (9...f5 10.Nc3 e4 11.Be2 a6 12.bc6 bc6=) 10.Ne2 0–0 11.0–0 f5 12.Nd2 e4=; B) 9.Nc3 Ne7 (9...Bf5 10.Be2 Ne7 11.Nf3 0–0 12.0–0 Qb8=) 10.Nf3 Bg4 11.Be2 e4 12.Nd2 Be2=; C) 9.Be2 cb5 (9...Ne7 10.Nf3 0–0 11.0–0 Qe8 12.Nc3 Bg4=; 9...Bf5 10.Nf3 Ne7 11.0–0 Qb8 12.h3 0–0=; 9...ed4 10.Bd4 a6 11.bc6 bc6 12.Nf3 Ne7=; 9...Rc8 10.Nf3 Ne7 11.0–0 0–0 12.Nbd2 Rf7=; 9...Ba5 10.Nc3 a6 11.b6 Qe7 12.Qa3 Bc3=; 9...f5 10.Nf3 e4 11.Nfd2 Ne7 12.0–0 0–0=) 10.Bb5 Ne7 11.Nf3 Nc6 12.e4 ed4=; D) 9.Nd2 Ne7 (9...Bf5 10.Ngf3 Ne7 11.Be2 Bg4 12.h3 Bf3=) 10.Bd3 Bf5 11.Be2 Ng6 12.Rd1 Rc8=; E) 9.Nf3 Ne7 (9...Bf5 10.Be2 Ne7 11.0–0 Qb8 12.h3 0–0=) 10.Be2 Bg4 11.h3 Bf5 12.0–0 0–0=.

7.d4 Bd6 8.Nd2 A) 8...ed4 A1) 9.bc6 Nc5 (9...bc6 10.Bd4 Ne7 11.e4 0–0 12.cd5 cd5+=) 10.Qb5 bc6 11.Qc6 Kf8 12.cd5 Ne7–/+; A2) 9.Bd4 Ne7 10.bc6 bc6 11.e4 0–0 12.cd5 cd5+=; A3) 9.ed4 Qe7 (9...Bf4 10.Ngf3 Qe7 11.bc6 bc6 12.Ba3 c5=; 9...Ne7 10.c5 Bf4 11.Ngf3 a6 12.bc6 bc6=) 10.c5 Bf4 11.Ne2 Bg4 12.0–0–0 Bg5=; B) 8...Ne7 9.c5 Bc7 10.Be2 Rb8 11.Bh5 g6 12.Be2 b6+=.

7.d4 Bd6 8.Nf3 Ne7 9.Nc3 0–0 10.Be2 Qe8 11.Ba3 Ba3 12.Qa3 e4 (12...dc4 13.bc6 bc6 14.0–0=) 13.Nd2+= f5 14.g3 g5 (14...Nb6 15.bc6 Nc6 16.c5=) 15.h4 g4 16.bc6 bc6 (16...Nc6? 17.cd5 (17.Nd5?! Bd5 18.cd5 Ne7+/–) 17...Nd4 18.ed4+–) 17.Rb1 dc4 18.Nc4 Nb6 19.Ne5 Ned5 20.Rc1 Qe7 21.Qe7 Ne7 22.a3 a5 23.Nb1 Bd5 24.Nd2 Rfb8 25.0–0 Kg7 26.Rc2 Na4 27.Rfc1 Ra7 28.Ndc4 c5 ½–½. Jamieson,Ian M – Borwell,Alan P (2205), Scottish CCA Webserver Open – Section A, 2007.

6.bc6 bc6

7.cd5 cd5 8.Qa4 Bd7 9.Bb5 a6 10.Bd7 Qd7 11.Qb3 Nc6 12.Nc3? (better is 12.a3–/+) 12...Rb8–+ 13.Qc2 Nb4 14.Qb1 e4 (14...e4 15.Ne4 Qb5–+) 0–1. GuestDWBQ – GuestXVSP, freechess.org, 2017.

7.cd5 cd5 8.Bb5 Bd7 9.Be2 Nc6 10.Nf3 (10.Nc3 Rb8 11.Qc2 Nb4–/+) 10...Bd6 (10...Rb8 11.Bc3+=) 11.Nc3 Be6 (11...e4 12.Ng1 Rb8 13.Nb5+=) 12.Qa4 Nge7 13.Nb5 Bb8 14.0–0 0–0 15.Ba3 Bd7 16.Qc2 (16.d3 a6 17.Nc3 Rf7=) 16...Qa5 (16...a6 17.Nc3+=) 17.Rab1 (17.e4 Be6=) 17...a6 18.Bb4?? (18.Be7 Ne7 19.Nc3 Bd6+=) 18...Qb6 (better is 18...Nb4 19.Qc3 ab5 20.Rb4 Rc8–+ (worse is 20...Qa2 21.Bb5 Rc8 22.Qb3–+)) 19.Bc5= Qd8 20.Nd6 (20.Nc3 Ba7 21.Be7 Ne7 22.Ba6 Bf5+=) 20...Bg4 (better is 20...Bd6 21.Bd6 Bf5–/+) 21.Nb7= Qd7 22.h3 Bf5 23.d3 Rc8 24.e4 Bg6 25.ed5 (25.Rfc1!?=) 25...Nd5–/+ 26.Qc4 Bf7 27.Qe4? (better is 27.Qc1!?–/+) 27...f5 (27...Nc3 28.Qe3–+) 28.Qh4 (28.Qc4 Ne3! 29.Qa4 Nf1 30.Kf1–+) 28...Bc7?? (better is 28...Nc3 29.Rfe1 Nb1 30.Rb1 Ba2–+) 29.Ng5= Bg6 30.Bh5 (better is 30.Bf3 Kh8 31.Rfc1=) 30...Qe8?? (better is 30...Bh5 31.Qh5 h6–/+) 31.Bg6+– Qg6 32.Rfe1?? (better is 32.Qc4 Rd8 33.Nd8 Rd8 34.Qa6+–) 32...Qf6?? (better is 32...f4=) 33.d4 (33.Qh7) 33...e4?? (33...h6 34.Nf3 g5 35.de5 Ne5–/+ (worse is 35...gh4 36.ef6 Kf7 37.Rbd1 Nf6 38.Nh4+/–; 35...Be5?? 36.Qc4 Qe6 37.Rbd1+–)) 34.f3 (34.Qh7) 34...h6–+ 35.fe4 Nde7?? (better is 35...hg5 36.Qh5 fe4–+) 36.e5?? (better is 36.Nf3 Qh4 37.Nh4+/–) 36...Qg5+= 37.Qg5 hg5 38.d5? (better is 38.Be7 Ne7 39.Nc5–/+) 38...Nd5–+ 39.e6 (39.Nd6 Rd8–+) 39...Nde7 (39...Nc3 40.Ra1–+) 40.Nd6 Bd6 41.Bd6 Re8 42.Rb7 Ra7 (better is 42...Rad8 43.Be5 Rd2–+) 43.Reb1? (43.Rb6–+) 43...Rb7 44.Rb7 a5 (44...Nd5 45.e7–+) 45.Bc5 (45.Rc7 Kh7–+) 45...Kf8 (better is 45...Ng6 46.e7–+) 46.a3 Rb8?? (better is 46...Kg8 47.Rc7 Kh7–+) 47.Be7+= Ke8 48.Rc7?? (better is 48.Rb8 Nb8 49.Bg5=) 48...Ne7–+ 0–1. GuestDWBQ – GuestXVSP, freechess.org, 2017.

7.f4 Nd7 8.Nf3 Bd6 (8...Rb8 9.Qc2+=) 9.Nc3 Nh6 10.Be2 Rb8 11.cd5 cd5 (worse is 11...Rb2 12.de6 Nf8 13.fe5 fe5 14.Qa4 Ne6 15.Qc6 Qd7 16.Qa8 Bb8 17.0–0+/–) 12.Nb5 Bc5 (12...0–0!?=) 13.fe5+= fe5 14.0–0 Nf7 15.d4 Be7 (15...Bb6 16.de5 Be3 17.Kh1=) 16.Ba3 (better is 16.de5 Nc5 17.Nfd4+/–) 16...Ba3= 17.Na3 e4 18.Ne5 (18.Ne1 Rb2+=) 18...Nde5–/+ 19.de5 0–0 (19...Ne5?! 20.Bb5 Ke7 21.Qd4=) 20.Nb5 Ne5 21.Rf8 Qf8 22.Na7? (better is 22.Rc1!?–/+) 22...Rb2–+ 23.Rb1 Ra2 24.Nb5 Ng4 25.Qe1 Ne3 26.Nd4 Nc2 27.Ne6 (27.Nc2 Rc2 28.Bd3 Rc8–+ (28...ed3?! 29.Qe6 Kh8 30.Qd5–/+)) 27...Ne1 28.Nf8 Re2 (28...Kf8?! 29.Re1 Ke7 30.Kf1+=) 29.Ne6 Ng2 30.Rb7 Ne3 31.Rg7 Kh8 32.Rd7 Rg2 33.Kh1 Rg6 34.Rd8 Rg8 35.Rd7 Ng4 36.h4 e3 37.Ng5 (37.Nd4 Re8 38.Ne2 Nf6–+) 37...Rg5! 38.hg5 e2 39.Re7 Nf2 40.Kg2 Ne4 41.Re4 de4 42.Kf2 Kg7 43.Ke2 Kg6 44.Ke3 Kf5 (44...Kf5 45.Ke2 Kg5–+) 0–1. Bulcourf,Carlos (2205) – Tristan,Leonardo (2315), LNA Puma Cup, 2006.

6.bc6 Nc6

7.cd5 Qd5 8.Nc3 Qd7 9.Nf3 Rd8 10.Rc1 Nge7 11.Be2 Nd5 12.0–0 (12.Qa4 Nc3 13.Rc3 Bd6=) 12...Nc3–/+ 13.Bc3 Ba2 14.d4 e4 15.Nd2 Bd5 16.Qc2 (16.f3 f5+=) 16...Qe6–/+ 17.f3 (17.Qa4 a6–/+) 17...f5 (17...ef3 18.Bf3 Qe3 19.Kh1–/+) 18.fe4 fe4 19.Nb1 Bd6 20.Bd2 Qh6 (20...Bb3 21.Qb2 a5 22.Nc3=) 21.g3 Qg6 22.Rf2 Rf8 23.Rcf1 (23.Rf8 Kf8 24.Nc3 Nb4 25.Rf1 Kg8+=) 23...Rf6 (23...Rf2!? 24.Rf2 a6–/+) 24.Nc3+= Nb4 25.Qd1 Ke7 26.Rf6 (26.Nd5!? Nd5 27.Qb3=) 26...gf6–/+ 27.Bg4 Qg7 28.Nd5 Nd5 29.Rf2 (29.Kh1 Bg3 30.hg3 Rg8=) 29...h5 (better is 29...Rg8!? 30.Qb3 Qg4 31.Qd5 Rc8+=) 30.Bf5+= h4 (30...Bg3 31.hg3 Ne3 32.Bb4 (32.Be3?! Qg3 33.Kf1 Qe3=) 32...Rd6 A) 33.Bd6 Kd6 34.Qc1 Qg3 35.Kh1 Ke7 (35...Nf5 36.Qc5 Kd7 37.Qf5 Kd6 38.Qf6 Kd5 39.Rf5 Kc4 40.Qf7 Kc3 41.Rc5 Kb2 42.Qb7 Qb3 43.Rb5 Qb5 44.Qb5 Kc1 45.d5+–) 36.Qa3 Kf7 37.Qb3 Kf8 38.Qb4 Ke8 39.Qb5 Kf8 40.Qb4 Ke8 41.Qa4 Kf8 42.Qa3 Ke8 43.Bg6 Kd7 44.Qa4 Kc7 45.Qa5 Kd7 46.Qb5 Kc7 47.Qc5 Kd7 48.Bf5 Nf5 49.Qf5 Kd6 50.Qf6 Kd5 51.Rf5 Kc4 52.Qf7 Kc3 (52...Kd4?? 53.Qd5 Kc3 54.Qa5 Kc2 55.Qa2 Kc3 56.Qa3 Kc4 57.Qg3+–) 53.Rc5 Kb2 54.Qb7 Qb3+–; B) 33.Qh5 Qg3 34.Kh1+–) 31.g4+/– b6 32.Qc2 Kf8 33.Qe4 Qe7 (33...a6 34.Qf3+/–) 34.Qd3 Qg7 35.Be6 (35.Kh1 Nb4 36.Qb5 Qe7+–) 35...Nc7 36.Bb3 Ne8 (36...Qg4 37.Rg2 Qh5 38.Qe4+–) 37.g5! Be7 (37...Qg5 38.Rg2 Decoy) 38.Kf1 Rd6 (better is 38...Nd6+–) 39.Rf4 a5 40.e4 a4 (40...Qh7 41.Qh3 Qg6 42.Rh4+–) 41.Ba2 Qg5 (41...Qg6+–) 42.e5 (better is 42.Qc4 Rd5 43.Qd5 Qd5 44.Bd5 Nc7+–) 42...Rc6 43.Qh7 Qg7 44.Qe4 (44.Qh4?! Rc2 45.Rf2 Ra2+–) 44...Rc8 45.Rg4 b5 (45...Rc2 46.Rg7 (46.Qc2?! Qg4 47.Bh6 Ng7=) 46...Ra2 47.Rh7 Ra1 48.Ke2 Rg1 49.Rh8 Rg8 50.Bh6 Ng7 51.Qg6 Bc5 52.Qg7 Ke8 53.Rg8 Bf8 54.Rf8) 46.Rg7 1–0. Morley,Paul (2240) – Niziolek,Jan (2115), WS/M8 ICCF, 2007.

7.cd5 Qd5 8.Nc3 Qd7 9.Nf3 Nge7 10.Ne4 (10.d4 Rd8 11.de5 fe5 12.Qd7 Rd7=) 10...Nf5+= 11.Qa4 Rd8 12.Rc1 Be7 13.g4 (13.Bc4 Bc4 14.Qc4 Nh6=) 13...Nh6 (13...Bd5 14.gf5 Qf5 15.Ng3 Qf3 16.Be2 Qh1 17.Nh1 Bh1 18.Bc4=) 14.g5+= Nf7 15.gf6 gf6 (worse is 15...Bf6 16.Nc5 Qe7 17.Ba6+/–) 16.Bb5 (16.Ba3 Bd5 17.Be7 Be4 18.Bd8 Bf3 19.Rg1 Nfd8 20.Rg3–+) 16...Bd5–/+ 17.Nf6 Bf6 18.e4 a6 (18...Be4 19.Qe4 Ng5 20.Ng5 Qd2 21.Kf1 Qg5 22.Bc6 bc6 23.Qc6 Kf8 24.Ba3 Be7 25.Rg1+–) 19.ed5 ab5 20.dc6 ba4 21.cd7 Kd7 22.Ke2 Rc8 (22...Ke6 23.Ke3+=) 23.h4 Ke6 (23...Rhg8 24.Ke3=) 24.d4 e4 25.d5 Kd5 (25...Kf5 26.Nd4 Kg4 27.Rcg1 Kh5 28.Ba1=) 26.Bf6 Rc1 27.Rc1 (27.Bh8?? ef3 28.Kf3 Rh1–+) 27...ef3 28.Kf3 Rf8 29.Kg4 Rg8 30.Kf4 Nd6 31.Be7 Nc4 32.Rd1 Kc6 33.Bb4 b5 34.a3 Rg2 35.Kf3 Rg6 36.Kf4 Rf6 37.Kg3 Re6 38.Kf3 Re5 39.Rd8 Rf5 ½–½. pvanr (2115) – varnatiger (2185), gameknot.com, 2013.

6.cd5 cd5

7.d4 Nd7=.

7.Nf3 Bb4 8.Nc3=+.

7.Nf3 Ne7 8.Be2 (8.Nc3 Nd7 (8...Nf5 9.d4 e4 10.Nd2 Be7 11.Be2 Qd7 12.Na4=) 9.Be2 (9.d4 e4 10.Nd2 Rc8 11.Qb3 f5 12.Be2=; 9.Rc1 Rc8 10.d4 e4 11.Nd2 Nb6 12.Be2=; 9.a3 Rc8 10.d4 Bg4 11.Be2 Qa5 12.Rc1=) 9...Nf5 10.d4 Rc8 11.0–0 e4 12.Nd2=; 8.d4 e4 9.Nfd2 Nf5 10.Nc3 Bb4 11.a3 Ba5 12.Rc1=) 8...g6 (8...Nd7 9.d4 (9.0–0= Rc8 10.d4 e4 11.Nfd2 Ng6 12.Nc3=; 9.Nc3 Nf5 10.d4 Rc8 11.0–0 e4 12.Nd2=; 9.a3 Nf5 10.d4 Bd6 11.g4 Nh6 12.g5=) 9...e4 10.Nfd2 Rc8 11.0–0 Nf5 12.Qb3=; 8...Nf5 9.d4 (9.0–0 Bd6 10.d3 0–0 11.Nbd2 Nd7 12.e4=; 9.Qb3 Nd7 10.d4 Qa5 11.Nc3 e4 12.Nd2=) 9...e4 10.Nfd2 Bd6 11.Qb3 Qd7 12.Nc3=) 9.0–0 (9.Nc3 Bg7 10.d4 0–0 11.Rc1 a6 12.de5+=; 9.d4 e4 10.Nfd2 Nd7 11.0–0 Rc8 12.Qb3+=) 9...Bg7 (9...Nd7 10.d4 e4 11.Nfd2 Rc8 12.Nc3+=) 10.d4 e4 (10...Nd7 11.Nc3 Nb6 12.Na4+=) 11.Nfd2 0–0 (11...f5 12.Qb3+=) 12.f4 (12.Nc3 Nd7+=) 12...Nf5 13.Qb3 Nd7 (13...Re8 14.Rc1=) 14.Ne4+= Ne3 (14...Re8!? 15.Nf2 Nb6+=) 15.Qe3+/– de4 16.Qe4 Qb6 17.a4 (17.f5 gf5 18.Qf4 Rfe8+/–) 17...f5+= 18.Qd3 (better is 18.Qe3!?+=) 18...Nc5= 19.Qe3 (19.dc5? Qc5 20.Kh1 Bb2–+) 19...Nb3 20.Ra3 (20.a5 Bd4 21.Bd4 (21.ab6? Be3 22.Kh1 Na1 23.Ba1 Bb6–+) 21...Qd4 22.Qd4 Nd4 23.Bd3+=) 20...Nd4+= 21.Kh1 Nc2 (21...Rfe8 22.a5 Qc5 23.Rc1+=) 22.Qb6= ab6 23.Bg7 Kg7 24.Rc3 Nd4 25.Bd1 Rfc8 26.Kg1 Rc3 27.Nc3 Rc8 28.Ne2 Ne2 29.Be2 Rc2 30.Bf3 Rc7 (30...Rc4!?+=) 31.Rd1+/– Rd7 32.Rd7 Bd7 33.Bb7 Kf7 34.Kf2 Be6 35.Bc6 (35.Bf3 Ke7+/–) 35...Ke7+= 36.a5 ba5 37.b6 Kd6 38.b7 Kc7 39.Ke3 (39.h3!?=) 39...Bc4+= 40.g3 (40.Kd4 Ba6+=) 40...Ba6–/+ 41.Bd5 Bb7 42.Bg8 a4 43.Kd4 a3 44.Kc4?? (44.Kc5 h6+=) 44...Bf3 (44...a2 45.Bh7 a1Q 46.Bg6 Qa6 47.Kd4 Qg6 48.Kc3 Qc6 49.Kd4 Qd5 50.Kc3 Qc5 51.Kd2 Qb4 52.Kc2 Be4 53.Kd1 Qb2 54.Ke1 Bd3 55.Kd1 Qe2 56.Kc1 Qc2) 45.Bh7?? (45.Kb4=) 45...Bh5 (better is 45...a2 46.Bg6 a1Q 47.Bf5 Qa2 48.Kd3 Qh2–+) 46.Bg8?? (better is 46.Kb3+=) 46...Kd6 ½–½. Franke,Roland – Behr,H, corr DDR–ch M782, 1985.

7.Nf3 Bd6

8.Qc2 Nd7 9.Be2 Ne7 10.0–0 0–0 11.d3 Rc8 12.Qd2 Qb6 13.a4 a5 14.Nc3 ½–½. Waibel – Z Becker, 1996.

8.d3!? Qa5?! 9.Bc3 Qb5? 10.d4. Adam.

8.d3 Nd7 A) 9.d4 Rc8 (9...e4 10.Nfd2 Rc8 11.Be2 Ne7 12.Ba3 Nf5=) 10.de5 fe5 11.Nc3 Ngf6 12.Rc1 Qa5+=; B) 9.Nc3 Qa5 (9...Rc8 10.Rc1 Ne7 11.Be2 Qa5 12.d4 e4+=; 9...Ne7 10.Be2 Rc8 11.Rc1 Qa5 12.d4 e4+=; 9...Nh6 10.Be2 0–0 11.0–0 Rc8 12.Rc1 Qa5+=; 9...Qb6 10.Be2 Ne7 11.a4 0–0 12.0–0 Qa5+=; 9...Nb6 10.Be2 Rc8 11.0–0 Ne7 12.a4 Bb4=; 9...Rb8 10.Rc1 Rc8 11.d4 e4 12.Nd2 f5=; 9...Qe7 10.Be2 Nh6 11.0–0 0–0 12.Rc1 Rfc8=) 10.d4 Qb4 11.Qc2 Ne7 12.de5 fe5+=.

8.d3 Ne7 9.Be2 (9.Nc3 Qa5 (9...a6 10.d4 e4 11.Nd2 0–0 12.Qb3 f5=; 9...Nf5 10.e4 Nd4 11.ed5 Bd7 12.a4 Bb4=; 9...0–0 10.Be2 a6 11.0–0 Nd7 12.Qd2 Qe8+=; 9...Qb6 10.Be2 0–0 11.0–0 Nd7 12.a4 Qa5+=) 10.d4 Nd7 11.Rc1 Rc8 12.Be2 e4+=; 9.d4 Nd7 (9...e4 10.Nfd2 0–0 11.Qb3 Qd7 12.Ba3 f5=) 10.de5 fe5 11.Bd3 Bg4 12.h3 Bf3+=) 9...0–0 (9...Qb6 10.Nc3 0–0 11.0–0 Nd7 12.a4 Qa5+=; 9...a6 10.d4 e4 11.Nfd2 ab5 12.Qb3 Qd7=; 9...Nd7 10.Nc3 Rc8 11.Rc1 Qa5 12.d4 e4+=; 9...Qa5 10.Bc3 Qb6 11.Qa4 Nd7 12.d4 Qc7+=; 9...Nf5 10.0–0 0–0 11.Nbd2 Nd7 12.e4 Ne7=; 9...Ng6 10.Nc3 0–0 11.0–0 Nd7 12.d4 e4=; 9...Qd7 10.Ba3 a6 11.Qa4 0–0 12.d4 Rc8=) 10.Nc3 (10.0–0 Nd7 11.Nc3 Rc8 12.Rc1 Qa5+=) 10...Nd7 11.0–0 Bg4 (11...Rc8 12.Rc1 Qa5+=) 12.Re1 (12.Rc1 Qa5=) 12...f5 (12...Qa5+=) 13.Qb3 (13.h3 Bh5=) 13...Nf6 (13...Nc5!? 14.Qd1 e4+=) 14.Ng5 Be2 15.Ne6 (15.Re2!? Qe8 16.e4+=) 15...Qc8+= 16.Nf8 Bd3 17.Nh7 Kh7 (17...Nh7?! 18.Nd5 Qc4 19.Red1 Qb3 20.ab3+=) 18.Rac1? (better is 18.Nd5!? Ned5 19.Qd3+=) 18...Bc4–+ 19.Qa4 Qe6 20.Qc2 (20.Ba3 Ba3 21.Qa3 a6–+) 20...Rh8 21.h3 Kg8 (21...a6 22.a4–+) 22.f3 (22.Qa4 a6 23.ba6 ba6 24.Ba3–+) 22...Bc5 (better is 22...a6 23.ba6 ba6–+) 23.Qf2?? (better is 23.Nd5 Ned5 24.Qc4–/+) 23...f4–+ 24.Nd1 Nf5 0–1. Stummerer,Alfred – Schwab, corr SOK–87–11, 1987.

8.d3 Nh6 9.Be2 Qa5 (9...Nd7 10.0–0 Rc8 11.Nc3 0–0 12.Rc1 Qa5=; 9...Nf7 10.0–0 Nd7 11.Nc3 0–0 12.d4 e4=; 9...Nf5 10.0–0 0–0 11.Nbd2 Nd7 12.e4 Ne7=; 9...Qb6 10.Nc3 Na6 11.d4 e4 12.Nd2 Nc7=; 9...0–0 10.0–0 Nd7 11.Nc3 Rc8 12.Rc1 Qa5+=; 9...Qd7 10.Ba3 0–0 11.d4 Rc8 12.0–0 Nf7=; 9...a6 10.d4 e4 11.Nfd2 0–0 12.Qb3 Qd7=) 10.Bc3 Qb6 11.Qd2 a5 12.ba6 Na6+=.

8.d4 A) 8...Nd7 9.Nc3 (9.de5 fe5 10.Nc3 Ngf6 11.Ng5 Qe7 12.a3=; 9.Be2 Rc8 10.de5 fe5 11.0–0 Ngf6 12.Nc3+=; 9.Qb3 Ne7 10.Nc3 0–0 11.Rc1 Rc8 12.Bd3=) 9...e4 10.Nd2 f5 11.Qb3 Ngf6 12.Ba3=; B) 8...e4 9.Nfd2 Ne7 10.Ba3 0–0 11.Be2 f5 12.Qb3=.

8.Nc3 Nd7

9.a3 Ne7 10.Be2 0–0 11.0–0 Rc8 12.d3+=.

9.a4 Ne7 10.Be2 0–0 11.0–0 Rc8 12.a5+=.

9.Rb1 Ne7 10.Be2 Rc8 11.0–0 Qa5 12.Rc1+=.

9.Rc1 Rc8 (9...Ne7 10.Be2 Rc8 11.d4 Qa5 12.0–0 e4=; 9...Nh6 10.d4 Rc8 11.Qb3 Qa5 12.Be2 0–0=; 9...Nb6 10.d4 e4 11.Nd2 Rc8 12.Qh5 g6=) 10.d4 Qa5 11.de5 Ba3 12.Qd2 Bb2=.

9.d3 Rc8 10.Rc1 Qa5 11.d4 Ne7 12.Be2+=.

9.Bd3 Rc8 10.0–0 Ne7 11.Be2 0–0 12.Rc1+=.

9.d4 e4 (9...Rc8 10.de5 fe5 11.Rc1 Nh6 12.Nd5 Rc1=) 10.Nd2 f5 11.Qb3 Ngf6 12.Ba3 Qe7+=.

9.Be2 Rc8 10.Rc1 Ne7 11.d4 Qa5 12.Qb3 Nb6=.

9.Be2 Ne7 10.0–0 Rc8 11.d4 e4 12.Nd2 Qc7+=.

9.Be2 Ne7 10.d4 e4 11.Nd2 0–0 12.Qb3=.

9.Be2 Nh6? 10.d4 Nb6 11.a4 Rc8 12.a5 Nc4 13.Bc4 Rc4 14.0–0 Bb4 15.Ne2 e4 16.Nd2 Rc8 17.Nf4 Bf7 18.b6 0–0 19.ba7 Ra8 20.Nb3 Ra7 21.Ba3 Ba3 22.Ra3 Qd6 23.Qa1 g5 24.Ne2 Bh5 25.Nc3 Rc8? 26.Nb5! Qb8 27.Na7 Qa7 28.Nc5 Be2 29.Rb1 1–0. Diener – Poschmann, corr ICCF.

9.Be2 Nh6 10.d4 e4 11.Nd2 f5 12.Qb3 0–0=.

8.Nc3 Ne7

9.a3 Nd7 10.Be2 0–0 11.0–0 Rc8 12.Rc1+=.

9.a3 Nd7 10.Be2 Rc8 11.d4 e4 12.Nd2 0–0+=.

9.Rb1 Nd7 (9...0–0 10.Be2 Nd7 11.Rc1 Nb6 12.0–0 Rc8+=; 9...Qb6 10.d4 e4 11.Nd2 Nd7 12.Qb3 f5=; 9...Qa5 10.Be2 0–0 11.Qb3 Nd7 12.d4 e4=) 10.Be2 Rc8 11.0–0 0–0 12.Rc1 Qa5+=.

9.Qb3 0–0 10.d4 e4 (better is 10...Qa5+=) 11.Ne4+/– Re8 (11...de4 Exploits the pin 12.Qe6) 12.Bd3 de4 (better is 12...Bg4+/–) 13.Qe6+– Kh8 14.Qe4 (14.Qe4 Bb4 15.Kf1+–; 14.Be4?! Qa5 15.Nd2 Bb4+–) 1–0. Trokenheim,Marek – Markus,Roland, corr SOK–89–41, 1990.

9.Rc1 0–0 (9...Nd7 10.d4 e4 11.Nd2 0–0 12.Qb3 f5=) 10.d4 e4 11.Nd2 f5 12.Qb3 Rf6=.

9.Qc2 0–0 (9...Nd7 10.Be2 Rc8 11.0–0 Nf5 12.d4 e4+=; 9...Qa5 10.Be2 Nd7 11.0–0 Rc8 12.Rfc1 0–0+=) 10.Be2 Nd7 11.0–0 Rc8 12.Rac1 Qc7+=.

9.d3 Qa5 (9...a6 10.d4 e4 11.Nd2 0–0 12.Qb3 f5=; 9...0–0 10.Be2 a6 11.0–0 Nd7 12.Qd2 Qb6=; 9...Qb6 10.Be2 0–0 11.0–0 Nd7 12.a4 Qa5+=) 10.d4 Nd7 11.Be2 Rc8 12.Rc1 e4+=.

9.Bd3 Nd7 (9...0–0 10.0–0 Nd7 11.Qb1 h6 12.Rc1 Rc8+=; 9...Qd7 10.Be2 0–0 11.0–0 Nf5 12.d3 Qe7=; 9...a6 10.0–0 0–0 11.Qb1 e4 12.Nd4 Bc8=) 10.0–0 Nb6 11.Rc1 0–0 12.Be2 Rc8+=.

9.d4 e4 10.Nd2 0–0 11.Qb3 f5 12.Rc1=.

9.d4 e4 10.Nd2 f5 11.Qh5 Bf7 12.Qg5 0–0=.

9.Be2 0–0 10.0–0 Nd7 11.d4 e4 12.Nd2 f5 13.f4 Nf6 14.Qb3 Rc8 15.a4 (15.Ba3 Qd7=) 15...b6 (15...Qa5 16.Rac1=) 16.Ba3 Ba3 17.Qa3 Ne8 (17...Ng4 18.Nd1=) 18.Na2 (18.Rfc1 Nf6+=) 18...Rc2 (18...Nd6 19.Rfc1=) 19.Rfd1+= Qc7 20.Rdc1 Nd6 (20...Rc1!? 21.Rc1 Qd7+=) 21.Rc2+/– Qc2 22.Qd6 Qd2 23.Qe6 (23.Qe7?! Qe3 24.Kf1 Qf4 25.Ke1 Bf7=) 23...Rf7 24.Kf2 Qb2? (better is 24...g5 25.Kf1 g4+–) 25.Rc1 Qa2 26.Rc7 Kf8 (26...Qa3 27.Ra7 g6+–) 27.Ra7 g6 28.Qe5 (28.Qe5 Kg8 29.Ra8 Rf8 30.Qe6 Kg7 31.Qe7 Rf7 32.Qe8+–) 1–0. DEFFM – GuestPYWW, freechess.org, 2017.

9.Be2 Qa5 10.0–0 Nd7 11.d4 Rc8 12.de5 fe5=.

9.Be2 a6 10.0–0 0–0 11.Qb3 Qd7 12.Rfc1 ab5=.

9.Be2 Nd7 10.0–0 0–0 11.Rc1 Qb8 12.d3 Rc8=.

9.Qb3 Bf7

10.d4 e4 11.Nd2 0–0 12.Ba3 A) 12...Ba3 13.Qa3 f5 (13...Be6 14.Nb3 f5 15.Rc1 f4 16.ef4 Rf4=) 14.Rc1 Be6 15.Nb3 f4 16.ef4 Rf4=; B) 12...f5= B1) 13.Be2 f4 (13...Ba3 14.Qa3 Be6 15.Nb3 f4 16.ef4 Rf4=; 13...Be6 14.Na4 Ba3 15.Qa3 Nd7 16.Nb3 f4=) 14.Bd6 Qd6 15.0–0 Nf5 16.Nd1 Qg6+=; B2) 13.Bd6 Qd6 14.Rc1 Nd7 15.Be2 Be6 16.f4 Rac8=; B3) 13.Ne2 a6 (13...Be6 14.Bd6 Qd6 15.Nf4 Nd7 16.Be2 Rac8=; 13...Qb6 14.Nf4 Nd7 15.Be2 Bf4 16.Be7 Rfe8=; 13...Ba3 14.Qa3 Nd7 15.Nf4 Nb6 16.Be2 Ng6=; 13...Ng6 14.Bd6 Qd6 15.Rc1 Be6 16.h4 Nd7=; 13...Qd7 14.Rc1 Ba3 15.Qa3 Ng6 16.Qa5 a6=; 13...b6 14.Rc1 a6 15.Qa4 Be8 16.Bd6 Qd6=) 14.Bd6 Qd6 15.Nf4 Rc8 16.ba6 Na6=; B4) 13.Rd1 Be6 (13...Ba3 14.Qa3 Bh5 15.Be2 Be2 16.Ne2 Qd7=; 13...f4 14.ef4 Bf4 15.Be7 Qe7 16.Nd5 Qg5+=; 13...Bh5 14.Rc1 Ba3 15.Qa3 f4 16.ef4 Rf4=) 14.Na4 Ba3 15.Qa3 f4 16.Nc5 Bg4=; B5) 13.Rb1 Be6 (13...Ba3 14.Qa3 Be6 15.Ne2 Ng6 16.Rc1 f4=; 13...f4 14.Bd6 Qd6 15.ef4 Qf4 16.Ne2 Qf6+=) 14.Bd6 Qd6 15.b6 a6 16.Qb4 Qb4+=; B6) 13.g3 Ba3 (13...Ng6 14.Bd6 Qd6 15.Be2 Nd7 16.Rc1 Rac8=) 14.Qa3 Bh5 15.Bg2 Qd7 16.0–0 Qe6=; B7) 13.Rc1 f4 14.Bd6 Qd6 15.ef4 Qf4 16.Ne2 Qf6=.

10.d4 e4 11.Nd2 0–0 12.a4 Nd7 (12...f5 13.Ba3= (13.Rc1 f4 14.Ba3 fe3 15.fe3 Ba3 16.Qa3 Nf5+=) 13...f4 14.Bd6 Qd6 15.ef4 Qf4 16.Ne2 Qf6+=) 13.Be2 (13.Ba3 Ba3 (13...Qb6 14.Rc1 Ba3 15.Qa3 Qd8 16.Be2 Rc8+=) 14.Ra3 Rc8 15.Be2 Qa5 16.0–0 f5=; 13.Rc1 Rc8 (13...f5 14.Ba3 Nf6 15.Bd6 Qd6 16.a5 f4=; 13...Nb6 14.Ba3 Rc8 15.Bd6 Qd6 16.Be2 f5=; 13...Re8 14.Be2 a6 15.Ba3 Ba3 16.Qa3 ab5+=; 13...Nf5 14.Be2 Ne7 15.Ba3 Nf5 16.0–0 Ba3+=; 13...Qa5 14.Ba3 Ba3 15.Qa3 Rfe8 16.Be2 Rac8+=; 13...Qe8 14.Be2 a6 15.Ba3 Ba3 16.Qa3 Be6+=; 13...Ng6 14.Be2 f5 15.Ba3 Ba3 16.Qa3 f4=) 14.Ba3 Ba3 15.Qa3 Bh5 16.Qb3 f5=; 13.f3 ef3 (13...Rc8 14.fe4 de4 15.Bc4 Rc4 16.Nc4 Qc7+=; 13...f5 14.Ba3 Ba3 15.Ra3 Rc8 16.a5 f4=) 14.gf3 f5 15.Ba3 Ba3 16.Qa3 Rc8+=) 13...f5 (13...Rc8 14.Ba3 Ba3 15.Ra3 Qa5 16.0–0 Rc7=) 14.Ba3 Nf6 (14...Ba3 15.Ra3 f4 16.Bg4 Nf6=) 15.Bd6 Qd6 16.g3 (16.Qa3 Qe6=) 16...Rac8 17.0–0 g5 18.f4 gf4 19.gf4 (19.Rf4 Bh5 20.Bh5 Nh5=) 19...Nh5 (19...Ng4 20.Bg4 fg4 21.a5+=) 20.Ra2 (20.Kh1 Kh8=) 20...Kh8 21.Rf2 Rg8 22.Rg2 Rg2 23.Kg2 Qg6 (23...Rg8 24.Kf1 Nf4 25.ef4 Qf4 26.Ke1 Rg1 27.Nf1 e3–+) 24.Kf2 (24.Kf1 Qf6 25.b6 ab6+=) 24...Rg8 (24...Qf6!? 25.Ke1 Qh4 26.Kd1 Qh3–/+) 25.Nf1 Qf6 26.Ke1 Qh4 27.Kd2 Rg1 (27...Nf6 28.b6 a6 29.Qb4=) 28.Qd1 (28.Qb4!?+=) 28...Nf6 29.Kc2 (29.Rc2 Ng4 30.Bg4 fg4+= (worse is 30...Qg4 31.Qg4 fg4 32.Ng3+/–; worse is 30...Rg4 31.Qe1=)) 29...Qh3 (29...Ng4 30.Bg4 Rg4 31.Qe2+=) 30.Kb3 (30.Ra1 Ng4 31.Bg4 Rg4–/+ (31...Qg4?! 32.Qg4 fg4 33.Kb3=)) 30...Nc8 (30...Bh5 31.Ra1–/+) 31.Kb4 (31.Rc2 Nd6 32.Rc1 Nc4 33.Bc4 dc4 34.Ka2 Ng4–+) 31...Nd6 32.Qc1 Nc4 33.a5 Ng4 34.Nd5 (better is 34.Bg4 fg4 35.Ra1–+) 34...Nce3 (34...Bd5 35.Bc4 Bc4 36.Qc4 Rf1 37.Qc8 Kg7 38.Qd7 Kg6 39.Qe8 Kf6 40.Qf8 Kg6 41.Qg8 Kf6 42.Qf8 Kg6 43.Qg8 Kf6 44.Qf8=) 35.Qc8? (better is 35.Nde3 Ne3 36.Qe3 Qe3 37.Ne3 Ba2 38.Nf5–/+) 35...Kg7–+ 36.Nde3 (36.Nfe3 Ne3 37.Nc3 b6 38.ab6 Ba2 39.Qc7 Bf7 40.Qe5 Kh6 41.Qf6 Rg6 42.Qf7 Rb6 (42...Qh2?? 43.Qf8 Rg7 44.ba7 Nc2 45.Kc4 Qf4 46.a8Q Qc7 47.Qc6 Qc6 48.bc6 Ne3 49.Kb5+–) 43.Qf8 Kg6 44.Qg8 Kf6 45.Qf8 Kg6 46.Qg8 Kf6 47.Qf8 Kg6=) 36...Ne3 (36...Ba2 37.Nf5 Kg6 38.N1g3 Qh2 39.Qf8 Rb1 40.Kc5 Rc1 41.Kd6 Rc7 42.Kc7 Qg3 43.Ne7 Kh5 44.Qf5 Kh4 45.Qh7 Nh6 46.Qh6) 37.Ne3 Qe3 (37...Ba2 38.Nf5 Kf6 39.Qf8 Bf7 40.Qe7 Kg6 41.Ng3 Rg3 42.hg3 Qg3 43.f5 Kh6 44.Qf8 (44.Qf7?! Qe1 45.Kc5 Qe2+–) 44...Kg5 45.Qg7 (45.Qf7?! Qe1 46.Kc5 Qe2+–) 45...Bg6 46.fg6 hg6 47.Qe7 Kf5 48.Qf7 Kg5 49.Qd5 Kh6 50.Qe4 Qe1 51.Kb3 Qa5 52.Qh1 Kg5 53.Qb7+–) 38.Qd7 (38.Bc4 Qd4 39.Rc2 Rb1 40.Ka3 Qa1 41.Ba2 Rb3 42.Ka4 Qd4 43.Qc4 Bc4 44.Bb3 Bd3 45.Ka3 Bc2 46.Bc2 Qc3 47.Ka2 Qc2 48.Ka3 e3 49.h3 e2 50.a6 e1Q 51.ab7 Qec3) 38...Rb1 39.Kc5 Qc3 (39...Rc1 40.Bc4 Rc4 41.Kd6 Qd4 42.Ke7 Qf6) 40.Kd6–+ Qd4 41.Kc7 Rc1 42.Kd8 Qd7 (better is 42...Qc5 43.Bc4 Rc4 44.Rg2 Kf6 45.Qf7 Kf7 46.Rg7 Ke6 47.Rg6 hg6 48.a6 Qe7) 43.Kd7 Ba2 0–1. De Visser,Arno – Romitsin, corr ICCF, 1984.

10.d4 e4 11.Nd2 0–0 12.Rc1 A) 12...Qa5 A1) 13.Qa4 Qa4 14.Na4 b6 15.Be2 f5 16.Rc3 Nd7=; A2) 13.Be2 f5 (13...Nd7 14.a4 Qb4 15.Qb4 Bb4 16.0–0 Rac8=) 14.Ndb1 Nd7 15.Ba3 Ba3 16.Qa3 Qa3=; A3) 13.a4 Qb4 14.Qb4 Bb4 15.Ncb1 Rc8 16.Rc8 Nc8=; B) 12...f5 13.Ba3 (13.Be2 f4 14.0–0 Qa5 15.Ndb1 Nd7 16.Ba3 Ba3=) 13...f4 14.Bd6 Qd6 15.ef4 Qf4 16.Ne2 Qf6=.

10.d4 e4 11.Nd2 0–0 12.Be2 A) 12...Qa5 A1) 13.f3 f5 (13...Nd7 14.fe4 de4 15.Nc4 Qc7 16.Ne4 Bh2+=; 13...Rc8 14.fe4 de4 15.Bc4 Rc4 16.Nc4 Qc7+=) 14.g3 Nd7 15.0–0 Nf6 16.Rac1 ef3+=; A2) 13.Rc1 Nd7 (13...Rc8 14.f3 f5 15.fe4 fe4 16.0–0 Qb4+–; 13...f5 14.Qa4 Qa4 15.Na4 b6 16.Nb1 Nd7=) 14.a4 Qb4 15.Qb4 Bb4 16.0–0 Rac8=; A3) 13.0–0 f5 (13...Nd7 14.Rac1 Rac8 15.Ncb1 Rc1 16.Rc1 Rc8=; 13...Rc8 14.Rac1 Nd7 15.a4 Nb6 16.Rc2 Rc7=) 14.g3 Nd7 15.Rac1 Rac8 16.Kh1 Nf6+=; A4) 13.Ncb1 Rc8 (13...Nd7 14.Bc3 Qb6 15.Bb4 f5 16.a4 Rac8=) 14.0–0 Nd7 15.Ba3 Ba3 16.Qa3 Qa3=; A5) 13.a4 a6 (13...Nd7 14.Ba3 Ba3 15.Qa3 Rfe8 16.0–0 Rac8+=; 13...Rc8 14.Rc1 Nd7 15.Ba3 Ba3 16.Qa3 Ng6+=; 13...Qb6 14.Ba3 Ba3 15.Ra3 f5 16.Qb4 Ng6+=; 13...Qb4 14.0–0 Qb3 15.Nb3 Nd7 16.Rfc1 Rfc8+=) 14.Ba3 Ba3 15.Ra3 Rc8 16.0–0 ab5=; B) 12...f5 B1) 13.0–0 f4 (13...Qc7 14.f4 Qa5 15.Rfc1 Nd7 16.a4 Rac8=; 13...Qa5 14.g3 Nd7 15.Rac1 Rac8 16.a4 Nb6+=) 14.a3 Nc8 15.ef4 Bf4 16.Rfd1 Nb6+=; B2) 13.Ba3 f4 (13...Ba3 14.Qa3 Be6 15.Nb3 f4 16.Nc5 Bc8=; 13...Be6 14.Na4 Ba3 15.Qa3 Nd7 16.Nb3 f4=) 14.Bd6 Qd6 15.0–0 Nf5 16.Nd1 Qg6+=; B3) 13.Rc1 f4 14.0–0 Qa5 15.Ndb1 Nd7 16.Ba3 Ba3=.

8.Be2 Nd7

9.0–0 Rc8 (9...Qa5 10.d4 e4 11.Nfd2 f5 12.Qb3 Rc8=; 9...Ne7 10.d4 e4 11.Nfd2 Qc7 12.h3 0–0=; 9...Nb6 10.d4 e4 11.Nfd2 Rc8 12.Ba3 Bb8=) 10.Ba3 Ba3 11.Na3 Ne7 12.Qa4 Nb6=.

9.a3 Ne7 (9...Rc8 10.Nc3 Ne7 11.0–0 0–0 12.Qb3 Nc5+=; 9...Nh6 10.d4 e4 11.Nfd2 0–0 12.Nc3 f5+=; 9...Qa5 10.0–0 Rc8 11.Bc3 Qc7 12.Bb4 Bb4=; 9...Nb6 10.d4 e4 11.Nfd2 Rc8 12.a4 Ne7=; 9...Qb6 10.Nc3 Ne7 11.d4 e4 12.Nd2 Rc8=) 10.Nc3 Rc8 11.0–0 0–0 12.d3 Qb6+=.

9.Ba3 Ba3 10.Na3 Qa5 11.Nb1 d4 12.ed4 e4=.

9.a4 Ne7 10.0–0=+.

9.a4 Nh6 10.Ba3 Qe7 (10...Ba3 11.Na3 0–0 12.0–0+=) 11.0–0 0–0 12.h3 (12.Bd6 Qd6 13.d4 Rac8=) 12...Rac8+= 13.d4 e4 14.Nh2 (14.Bd6 Qd6 15.Nfd2 Nf5=) 14...Rc7 15.Qb3 (15.Bd6 Qd6 16.Nd2 Rfc8+=) 15...Rfc8 16.Bb2 (16.f3 Rc2 17.Ra2 Ra2 18.Bd6 Qd6 19.Qa2 Nf5+=) 16...Qf7 (16...Rc2!? 17.Bd1 R2c4–/+) 17.Ba3 Ba3 18.Na3 Qg6 (18...Rc3 19.Qb4–/+) 19.Kh1 (19.f3 Rc3 20.Qa2 Re3–+) 19...Nf5 20.Rfd1 (20.a5 Rc3 21.Qb4 R8c7+=) 20...h5 (20...Rc3!? 21.Qb4 R8c7–/+) 21.a5+= b6 (21...Rc3 22.Qb4+=) 22.a6 (22.Qb4 ba5 23.Qa5 Nd6=) 22...Nh4 Threatening mate... how? 23.Bf1 Qh6 (23...Rc3 24.Qb4+=) 24.Qb2 g5 (24...Nf5 25.Rac1=) 25.Rac1 Nf8 (25...g4 26.Rc7 Rc7 27.g3=) 26.Rc7+= Rc7 27.Rc1 (27.Be2 Nf5+=) 27...Qg7 (27...Rc1 28.Qc1 g4 29.g3+=) 28.Rc7+/– Qc7 29.Be2 Bf7 30.Nc2 Nf5 31.g4 (31.Nf1 Nd7+/–) 31...Ne7 (31...hg4!? 32.hg4 Nd6+=) 32.gh5+/– f5 33.f4 (better is 33.Kg1+/–) 33...gf4+= Black begins to deal mighty blows 34.ef4 Qf4 35.Ne1 (35.Qc3!?+=) 35...Qf2 36.Qd2 Nh7 (36...Ne6 37.Nc2 Nf4–+) 37.Nf1 (37.h6 Bh5! 38.Ng2 Qe2–+) 37...f4 (37...Bh5 38.Bh5 Qf1 39.Kh2 Qb5 40.Be2–+) 38.Nd3 (better is 38.h6!?–/+) 38...ed3–+ 39.Qd3 Ng5 40.Nh2 (40.h6 Bg6 41.Qg6 Ng6 42.h7 Kh7–+) 40...Ne4 (40...Ne4 41.Qe4 de4–+) 0–1. Wolf,Heinz – Katz,Markus, Verbandsliga Nord Baden, 1995.

9.Nc3 Ne7 (9...Rc8 10.0–0 Ne7 11.Rc1 0–0 12.d4 Nb6=; 9...Nh6 10.d4 e4 11.Nd2 f5 12.Qb3 0–0=) 10.0–0 Rc8 11.Rc1 0–0 12.d4 Nb6=.

9.d4 Rc8 10.de5 fe5 11.0–0 Ngf6 12.Nc3 0–0+=.

9.d4 e4 10.Nfd2 Qc7=+.

9.d4 e4 10.Nfd2 Ne7 11.Ba3 Ba3 12.Na3 Qa5=.

9.d4 Ne7 10.de5 fe5 11.0–0 Qb6 12.Nc3 0–0=.

8.Be2 Ne7

9.0–0 0–0 10.Ba3 Ba3 11.Na3 Qa5 12.Qb3=.

9.0–0 a6 10.Qa4 Nd7 11.ba6 0–0 12.Ba3 Nb6=.

9.0–0 Nf5 10.d4 e4 11.Nfd2 Qc7 12.Qb3 a5=.

9.a4 a6 (9...Nd7 10.0–0 Rc8 11.Ba3 Ba3 12.Na3 Nf5=; 9...0–0 10.0–0 Nf5 11.d3 Nd7 12.Nbd2 Rc8=; 9...Nf5 10.0–0 0–0 11.Nc3 e4 12.Ne1 Qc7=; 9...Bf5 10.d4 e4 11.Nfd2 0–0 12.Nc3 Be6=; 9...Ng6 10.0–0 0–0 11.Nc3 Nd7 12.a5 Qc7=) 10.Nc3 0–0 11.0–0 Qd7 12.a5 ab5+=.

9.Qb3 Nd7 10.0–0 Nc5 11.Qc2 (11.Rc1) 11...0–0 12.Nc3 Rc8 13.d4 Bf5! 14.Qd2 (14.Qd1) 14...Ne4 15.Ne4 Be4 16.Rac1= Bf3 17.Bf3 e4 18.Be2 f5 19.f4! Ng6 20.Rc8 Qc8 21.Rc1 Qd8 22.Qe1 b6 23.g3 Qe7 24.a3 h6 25.Rc6 Ba3 26.Ba3 Qa3 27.Qc3 Qc3 28.Rc3 ½–½. Zimmer – Stummerer, corr SOK–90–66 1990 (Zimmer, Adam).

9.Nc3 0–0 10.0–0 Nd7 11.Rc1 Qb8 12.h3 Qe8+=.

9.Nc3 0–0 10.d4 e4 11.Nd2 f5 12.Qb3=.

9.Nc3 a6 10.0–0 0–0 11.Qb3 Qd7 12.d4 e4=.

9.Nc3 Nd7 10.Rc1 0–0 11.d4 e4 12.Nd2 f5=.

9.d3 0–0 10.0–0 a6 11.Nc3 Nd7 12.Qd2 Qe8+=.

9.d3 Qa5 10.Bc3 Qb6 11.Qa4 Nd7 12.d4 Qc7=.

9.d3 a6 10.d4 e4 11.Nfd2 ab5 12.Qb3 Qd7=.

9.d3 Qb6 10.d4 e4 11.Nfd2 Nd7 12.Qb3 f5=.

9.d3 Qd7 10.Nc3 0–0 11.0–0 Rc8 12.Rc1 a6+=.

9.d3 Nd7 10.Nc3 Qa5 11.d4 Rc8 12.Rc1+=.

9.d3 Bf5 10.0–0 Nd7 11.Nc3 Rc8 12.Rc1 Qa5=.

9.d3 Nf5 10.0–0 0–0 11.Nbd2 Nd7 12.e4 Ne7=.

9.d3 Ng6 10.Nc3 0–0 11.0–0 Nd7 12.Rc1 Rc8+=.

9.d4 Qa5 10.Bc3 Qc7 11.de5 fe5 12.Bd3 e4=.

9.d4 Nd7 10.de5 fe5 11.0–0 h6 12.Ba3 Ba3=.

9.d4 e4 10.Nfd2 0–0 11.Qb3 f5 12.Ba3 Ba3=.

9.d4 e4 10.Nfd2 f5 11.0–0 0–0 12.Ba3=.

8.Be2 Nh6

9.0–0 0–0 10.Ba3 Ba3 11.Na3 Qd6 12.Nc2 a6=.

9.0–0 Nf5 10.d4 e4 11.Nfd2 Qc7 12.Qb3 Qf7=.

9.0–0 Nf5 10.d4 e4 11.Nfd2 Nd7 12.Nc3=.

9.a3 0–0 10.Nc3 Nd7 11.0–0 Rc8 12.Rc1+=.

9.a4 0–0 10.0–0 Nf5 11.Nc3 e4 12.Ne1=.

9.a4 0–0 10.Nc3 Nd7 11.d4 e4 12.Nd2 f5=.

9.a4 a6 10.Nc3 0–0 11.Qb3 ab5 12.Nb5 Nf7=.

9.a4 Qd7 10.d4 e4 11.Nfd2 0–0 12.0–0 Ng4=.

9.a4 Nd7 10.0–0 0–0 11.Ba3 Ba3 12.Na3 Rc8+=.

9.a4 Qe7 10.d4 e4 11.Nfd2 0–0 12.0–0 f5=.

9.a4 Nf5 10.0–0 0–0 11.Nc3 e4 12.Ne1 Qc7=.

9.a4 Nf7 10.Nc3 Nd7 11.Rc1 Rc8 12.0–0 0–0=.

9.Nc3 Nd7 10.d4 e4 11.Nd2 f5 12.Qb3=.

9.d3 0–0 10.0–0 Nd7 11.Nc3 Rc8 12.Rc1=.

9.d3 Qa5 10.Bc3 Qb6 11.Qa4 0–0 12.d4 Qc7=.

9.d3 a6 10.d4 e4 11.Nfd2 0–0 12.Qb3 f5=.

9.d3 Qb6 10.Nc3 Nc6 11.0–0 0–0 12.Rc1 Rac8=.

9.d3 Qd7 10.Ba3 0–0 11.d4 Rc8 12.0–0 Nf5=.

9.d3 Nd7 10.0–0 Rc8 11.Nc3 0–0 12.Rc1 Qa5=.

9.d3 Qe7 10.0–0 0–0 11.Nc3 Nd7 12.Rc1 Rac8=.

9.d3 Nf5 10.0–0 0–0 11.Nbd2 Nd7 12.e4 Ne7=.

9.d3 Nf7 10.0–0 Nd7 11.Nc3 0–0 12.d4 e4=.

9.d4 Qa5 10.Nc3 e4 11.Nd2 Qc7 12.Rc1 Qd7+=.

9.d4 Nd7 10.Nc3 e4 11.Nd2 f5 12.Qb3 0–0=.

9.d4 e4 10.Nfd2 0–0 11.Qb3 f5 12.Nc3 Nd7=.

9.d4 e4 10.Nfd2 Qe7 11.Nc3 Nd7 12.Qb3=.

7.Nf3 Nd7

8.Nc3 A) 8...Bd6 9.d4 (9.Rc1 Ne7 10.Be2 0–0 11.d4 e4 12.Nd2=; 9.Be2 Ne7 10.Rc1 0–0 11.d4 e4 12.Nd2=; 9.Bd3 Ne7 10.0–0 Rc8 11.Be2 0–0 12.Rc1+=; 9.d3 Ne7 10.Be2 Qa5 11.d4 Rc8 12.Rc1+=; 9.a4 Ne7 10.Be2 0–0 11.0–0 Rc8 12.d4+=; 9.a3 Ne7 10.Be2 Rc8 11.0–0 0–0 12.Rc1+=; 9.Rb1 Ne7 10.Be2 0–0 11.0–0 Rc8 12.Rc1+=) 9...e4 10.Nd2 f5 11.Qb3 Ngf6 12.Ba3=; B) 8...Rc8 9.Rc1 (9.Be2 Bd6 10.0–0 Ne7 11.d4 e4 12.Nd2+=; 9.d4 Bb4 10.Rc1 Qa5 11.Qb3 ed4 12.ed4+=; 9.a4 Nh6 10.Be2 Nf5 11.0–0 e4 12.Ne1+=; 9.a3 Bd6 10.Be2 Qa5 11.0–0 Ne7 12.Qb3+=) 9...Bd6 10.d4 e4 11.Nd2 f5 12.Qa4=; C) 8...Nh6 9.d4 (9.Be2 Rc8 10.d4 Qa5 11.Rc1 Qb4 12.Qd2=) 9...Rc8 10.Rc1 Qa5 11.Qb3 Nf5 12.Be2=.

8.Be2 Qa5 9.Nc3 (9.0–0 Rc8 10.d4 e4 11.Nfd2 Nh6 12.Nb3=) 9...Bd6 10.Rc1 Qb4 11.Qc2 Ne7 12.0–0=.

8.Be2 Bb4 9.0–0 Rc8 10.d4 e4 11.Nfd2 Bd6 12.Nc3=.

8.Be2 Bb4 9.0–0 Ne7 10.d4 e4 11.Nfd2 Bd6 12.Bh5 g6 13.Be2 Qc7 14.h3 0–0 15.Nc3 Rac8 16.Rc1 Qb6 17.Qb3 Bf7 18.Rc2 Bb8 19.Ba3 Qc7 20.f4 Nb6 21.Rfc1 Qd7 22.Nf1 Rfd8 23.Bc5 Nf5 24.Bb6 ab6 25.Bg4 Be6 26.Bf5 gf5 27.Kh2 Bf7 28.Qb2 Rc7 29.a3 Rdc8 30.Ng3 Rc4 31.Qb3 Kh8 32.Na4 Rc2 33.Rc2 Bc7 34.Qb4 h5 35.Qb1 Bg6 36.Nc3 Kh7 37.Nce2 Ra8 38.Qa2 Rc8 39.Nc3 Bf7 40.Rc1 Bd6 41.Nge2 Rc4 ½–½. Bendig – Kaschner, corr ICCF WT–I–1229 1989–91.

8.Be2 Qb6 9.Nc3 (9.0–0 Bd6 10.d4 e4 11.Nfd2 Ne7 12.Ba3=; 9.d4 e4 10.Nfd2 Rc8 11.Nc3 Ne7 12.Rc1=; 9.a4 Bd6 10.a5 Qc7 11.a6 Rc8 12.ab7=) 9...Rc8 10.Rc1 Bb4 11.a3 Be7 12.d4=.

8.Be2 Nb6 9.d4 (9.0–0 Bd6 10.d4 e4 11.Nfd2 Rc8 12.Ba3=) 9...e4 10.Nfd2 Rc8 11.0–0 Bd6 12.Ba3=.

8.Be2 Rc8 9.0–0 (9.Nc3 Bd6 10.Rc1 Ne7 11.d4 Qa5 12.0–0=; 9.a3 Bd6 10.Nc3 Ne7 11.d4 e4 12.Nd2+=; 9.Qa4 d4 10.ed4 Nb6 11.Qa5 e4 12.Ng1+=) 9...Bd6 10.Ba3 Ba3 11.Na3 Ne7 12.Qa4=.

8.Be2 Bd6 9.a3 (9.Nc3 Ne7 10.0–0 0–0 11.d4 e4 12.Nd2=; 9.d4 Rc8 10.de5 fe5 11.0–0 Ngf6 12.Ng5=; 9.Ba3 Ba3 10.Na3 Qa5 11.Nb1 d4 12.ed4+=; 9.a4 Ne7 10.0–0 0–0 11.Ba3 Ba3 12.Na3=; 9.0–0 Ne7 10.d4 e4 11.Nfd2 Qc7 12.h3=) 9...Nh6 10.Nc3 0–0 11.0–0 Nf5 12.e4=.

8.Be2 Be7 9.0–0 (9.Nc3 Rc8 10.0–0 Bd6 11.Rc1 Ne7 12.d4=; 9.d4 e4 10.Nfd2 Rc8 11.0–0 Qa5 12.Bh5=) 9...Rc8 10.Nc3 Bd6 11.Rc1 Ne7 12.d4=.

8.Be2 Ne7 9.0–0 (9.d4 e4 10.Nfd2 Rc8 11.Qb3 f5 12.Nc3=; 9.Ba3 Nf5 10.Bf8 Nf8 11.d4 Qa5 12.Qd2=) 9...Rc8 10.d4 e4 11.Nfd2 Nf5 12.Qb3=.

8.Be2 Nh6 9.d4 e4 10.Nfd2 Rc8 11.0–0 Bd6 12.Qb3=.

7.Nf3 Nh6

8.Qb3 A) 8...Be7 9.d4 (9.Nc3 Qd6 10.d4 Nd7 11.a4 Qb4 12.Qb4=) 9...Qa5 10.Nc3 Nd7 11.Be2 Rc8 12.Rc1=; B) 8...Qd7 9.d4 e4 10.Nfd2 Be7 11.Ba3 0–0 12.Be7=; C) 8...Nd7 9.d4 Qa5 10.Nc3 Rc8 11.Rc1 Nf5 12.Be2=.

8.Nc3 A) 8...Be7 9.Rc1 (9.d4 Nf7 10.de5 fe5 11.Qd2 0–0 12.a3=; 9.Qb3 Qd6 10.d4 Nd7 11.a4 Qb4 12.Qb4+=) 9...0–0 10.Qb3 Qd6 11.d4 Nd7 12.Be2=; B) 8...Nf5 9.d4 e4 10.Nd2 Be7 11.Be2 Qd7 12.Na4=; C) 8...Bb4 9.Rc1 (9.Qb3 Qd6 10.a3 Ba5 11.Qa4 Qb6 12.Be2=; 9.a3 Be7 10.d4 e4 11.Nd2 0–0 12.Rc1=) 9...Nd7 10.Qb3 Bc3 11.Qc3 Bg4 12.d4=; D) 8...Bd6 9.Qb3 (9.d4 e4 10.Nd2 f5 11.Qb3 Bc7 12.Rc1=) 9...Be7 10.d4 e4 11.Nd2 Qd6 12.a4=; E) 8...Nd7 9.d4 (9.Be2 Bd6 10.d4 e4 11.Nd2 f5 12.Qb3=) 9...Rc8 10.Rc1 Qa5 11.Qb3 Nf5 12.Be2=.

8.d4 Bb4 9.Bc3 Bc3 10.Nc3 e4 11.Nd2 0–0 12.Qb3 Qd6 13.Be2 Nd7 14.a4 f5 15.f4 ef3 (15...Rac8 16.0–0=) 16.Bf3 The pressure on the isolated pawn grows 16...Nf6 17.Ne2 Ne4 18.Nf4 Nd2 19.Kd2 Rad8 20.Rac1 Ng4 21.g3 (21.Rc5 Nf6=) 21...Nf2+= 22.Rhf1 Ne4 23.Be4 fe4 24.Ne6 Qe6 25.Rf8 Rf8 26.Rc5 Rd8 27.a5 (27.Ke1 Qd7+=) 27...b6+= 28.ab6 ab6 29.Rc2 Qf5 30.Kc1 (30.Ke1 Rf8 31.Re2 Qf1 32.Kd2 Qf7–/+) 30...Qf8 (30...Rf8 31.h4–/+) 31.Kb2 Qf1 32.Rc1 Qe2 33.Rc2 Qf3 34.Rc7 Qf6 35.Rc6 Qf2 36.Rc2 ½–½. De Visser,Arno – Bendig,Frank, corr SOK–89–42, 1990.

8.d4 e4 9.Nfd2 Nd7 10.Qb3 f5 11.Nc3 Nb6 12.Ba3=.

8.Be2 A) 8...Nf5 9.d4 (9.0–0 Bd6 10.d4 e4 11.Nfd2 Qc7 12.Qb3=) 9...e4 10.Nfd2 Be7 11.Qb3 Qd7 12.0–0+=; B) 8...Bb4 9.Qb3 (9.0–0 0–0 10.d4 e4 11.Nfd2 Nd7 12.Nc3=; 9.a3 Bd6 10.d4 e4 11.Nfd2 f5 12.Qb3=; 9.Qa4 Bd6 10.Ba3 Nf5 11.d4 0–0 12.0–0=) 9...Qd6 10.0–0 0–0 11.d4 e4 12.Nfd2=; C) 8...Bd6 9.d4 (9.Nc3 Nd7 10.d4 e4 11.Nd2 f5 12.Qb3=; 9.0–0 0–0 10.Qb3 Nd7 11.Nc3 Nc5 12.Qd1+=; 9.d3 0–0 10.0–0 Nd7 11.Nc3 Rc8 12.Rc1+=; 9.a3 Nd7 10.Nc3 0–0 11.0–0 Rc8 12.d4+=; 9.a4 0–0 10.Nc3 Nd7 11.d4 e4 12.Nd2=) 9...e4 10.Nfd2 Qe7 11.Nc3 Nd7 12.Qb3=.

5.c4 Ne7

6.Na3 Nf5 7.Nf3 (7.cd5 Bd5 8.Ne2 a6+=) 7...dc4 (7...e4 8.Ng1–/+) 8.Nc4+= e4 9.Nd4 Nd4 10.Bd4 Nd7 11.d3 Bb4 12.Nd2 ed3 13.Bd3 Ne5 14.Be2 Qd5 (14...Nc4! 15.Bc4 Bc4 16.Qh5 Bf7+=) 15.0–0= 0–0 16.a4 c5 17.bc6 Nc6 18.Bc4 Qd6 19.Ne4 Qe7 20.Be6 Qe6 21.Nc5 Bc5 22.Bc5 (22.Bc5 Rfd8 23.Qf3+=). Wobick,Reinhard – Maurer, corr SOK–89–46, 1989.

6.c5 Nd7+=.

6.cd5 Nd5 7.Nf3 Bd6 8.e4 Nf4 9.d4 Nd7 10.Nbd2 Qe7 (10...0–0 11.Qc2+=) 11.d5 Bf7 12.g3 Nh5 (12...Ng6 13.Be2=) 13.Be2 g6 14.0–0 (14.Rc1 0–0+=) 14...Ng7 (14...f5 15.Bc4=) 15.Nc4+= 0–0 (15...Bc5 16.Rc1+=) 16.Nd6 cd6 17.Nd2 Nc5 18.f4 ef4 19.Rf4 f5 20.ef5 Nf5 21.Nf1 Be8 (21...Qg5 22.Bg4 Be8 23.Bf5 Rf5 24.Rf5 Qf5 25.Qd4+=) 22.Qd2 Na4?? (better is 22...Bf7+=) 23.Ra4+– (23.Ra4 a6 24.Qc3+–) 1–0. Dopper,Johan – Regeer,Gerard, corr, 1990.

6.d4 Ng6

7.cd5 Qd5 8.Nf3 Nd7 9.Nc3 Bb4 10.Be2 0–0 A) 11.de5 Qc5 12.Qc2 (12.Qc1 Nge5 13.a3 Ba5 14.Nd4 Bc4 15.0–0=; 12.Qd4 fe5 13.Qc5 Nc5 14.Ng5 Bd5 15.0–0=) 12...Nde5 13.0–0 Bc4 14.Ne5 Ne5 15.Rfc1=; B) 11.Qa4 B1) 11...Qd6 12.a3 (12.0–0 Nb6 13.Qc2 Nc4 14.Rad1 Nb2 15.Qb2+=) 12...Bc3 13.Bc3 Nb6 14.Qc2 Nd5 15.Bd3+=; B2) 11...Bc3 12.Bc3 e4 13.Nd2 Qg5 14.Ne4 Qg2 15.Ng3=; C) 11.0–0 C1) 11...Qd6 12.a3 (12.Rc1 Rfe8 13.Qc2 Rad8 14.Qa4 Bc3 15.Bc3+=; 12.Qc2 Rad8 13.Rfd1 Qe7 14.Qe4 c6 15.bc6+=; 12.de5 Nde5 13.a3 Bc3 14.Bc3 Rfd8 15.Qc2+=) 12...Bc3 13.Bc3 Rfd8 14.Bb4 Qd5 15.Rc1+=; C2) 11...Bc3 12.Bc3= c6 13.bc6 Qc6 14.Rc1 Qd5 15.de5+=.

7.cd5 Qd5 8.Nf3 Nd7 9.Nc3 Bb4 10.Be2 0–0–0 11.a3 (11.Qa4 Bc3 12.Bc3 Kb8 13.Qc2 e4 14.Nd2 f5 15.Bb4+=; 11.0–0 Bc3 12.Bc3 Bg4 13.Rc1 e4 14.Nd2 Be2 15.Qe2+=) 11...Bc3 12.Bc3 e4 13.Nd2 Nh4 14.g3 Ng6 15.Rc1+=.

7.cd5 Qd5 8.Nf3 Nd7 9.Nc3 Bb4 10.Be2 Nb6 11.0–0+= Bc3 (11...Qd7 12.Qc2 (12.de5 Ne5 13.Ne5 fe5 14.Ne4 Bc4 15.Qd7+=; 12.a3 Bd6 13.Qc2 0–0 14.Bd3 f5 15.de5=) 12...Nc4 13.de5 fe5 14.Rfd1 Bd6 15.Bc4+=; 11...Qd6 12.Qc2 (12.de5 Ne5 13.Qc2 Nec4 14.Rfd1 Qe7 15.Nd4+=; 12.a3 Bc3 13.Bc3 Nd5 14.Qc2 e4 15.Nd2+=) 12...Nc4 13.Rfd1 Nb2 14.Qb2 Bc3 15.Qc3+=) 12.Bc3 e4 (12...Rd8 13.Qc2 e4 (13...Nc4 14.Rfc1+= Nd6 15.de5+/–) 14.Nd2 f5 15.a4+/–) 13.Nd2 0–0 (13...f5 14.Bb4 c6 15.Bc5+=) 14.Qb1 Bf5 (14...Rfe8 15.a4+/–) 15.Ba5 (15.g4+/–) 15...Kh8 16.Bb6 ab6 17.Bc4 Qd7 18.Ne4 Rfe8 19.Bd3 1–0. Dopper,Johan – Zondervan,JF, corr Netherlands, 1988.

7.cd5 Qd5 8.Nf3 Nd7 9.Nc3 Bb4 10.Be2 Bc3 11.Bc3 A) 11...0–0 12.Qc2 Rac8 13.Rd1 Qa2 14.Qa2 Ba2 15.Bd3+=; B) 11...Rc8 12.Qc2 (12.Qa4 Nb6 13.Qa3 e4 14.Nd2 Qg5 15.Rg1=) 12...c6 13.e4 Qd6 14.bc6 Qc6 15.Rc1+=; C) 11...Rd8 12.Rc1 (12.Qc2 c5 13.e4 Qd6 14.de5 fe5 15.Rd1=; 12.0–0 Bg4 13.de5 Qd1 14.Bd1 fe5 15.Ng5+=) 12...e4 13.Nd2 Nh4 14.0–0 Qg5 15.g3+=; D) 11...e4 12.Nd2 Nh4 13.Rg1 Nb6 14.a4 Nf5 15.Qc2+/–; E) 11...c6 12.Qc2 (12.bc6 Qc6 13.Rc1 e4 14.Ba1 Qd6 15.Nd2=; 12.de5 Nge5 13.bc6 Nc6 14.0–0 Qd1 15.Rfd1+=) 12...cb5 13.e4 Qd6 14.de5 Nge5 15.Ne5+=; F) 11...c5 12.bc6 Qc6 13.Rc1 e4 14.Ba1 Qd6 15.Nd2=.

7.cd5 Qd5 8.Nf3 Nd7 9.Nc3 Bb4 10.Be2 c5 11.de5 (11.bc6 Qc6 12.Rc1 Ba2 13.0–0 Bc3 14.Rc3 Qb6 15.Ba3=) 11...Nde5 12.a3 (12.Qc2 Rd8 13.a3 Bc3 14.Qc3 Nd3 15.Bd3+=; 12.Qd5 Bc3 13.Bc3 Bd5 14.Ne5 Ne5 15.f3=; 12.0–0 Qd1 13.Rfd1 Bc4 14.Ne5 Ne5 15.Kf1=) 12...Bc3 13.Bc3 0–0–0 14.Qd5 Bd5 15.Ne5=.

7.cd5 Qd5 8.Nf3 Nd7 9.Nc3 Bb4 10.Be2 Rc8 11.Qa4 (11.0–0 Bc3 12.Bc3 c5 13.de5 Qd1 14.Rfd1 Nde5 15.Ne5=) A) 11...ed4 12.Nd4 (12.Qb4 dc3 13.Bc3 c6 14.e4 Qc5 15.Nd4+=) 12...Qg2 13.Qb4 Qh1 14.Kd2 Qh2 15.Ne6+/–; B) 11...Bc3 12.Bc3 e4 13.Nd2 Nb6 14.Qa5 Ra8 15.0–0+=.

7.cd5 Qd5 8.Nf3 Nd7 9.Nc3 Bb4 10.Be2 e4 11.Nd2 Qg5 12.g4 (12.Nde4 Qg2 13.Bf3 Qh3 14.Ng3 0–0–0 15.Qa4=; 12.Bf1 f5 13.a3 Be7 14.g4 f4 15.Nce4=) 12...Bc3 13.Bc3 f5 14.Qc2 Nh4 15.Bb4+=.

5.d3 Nd7

6.Nd2 c5 7.Ne2 Bd6 8.Ng3 Ne7 9.c4 0–0 10.cd5 Nd5 11.Nc4 Be7 (11...Bc7 12.Qa4–/+) 12.Be2 a6 13.ba6 Ra6 (13...b5 14.Na3–/+) 14.0–0 b5 15.Nd2 f5 16.e4 (16.a4 f4 17.ef4 ef4+=) 16...Nf4 17.Nf3 (17.Nf5 Bf5 18.ef5 Rf5=) 17...fe4 18.Ne4 Qc7 19.Nfd2 (19.a3 Bg4–/+) 19...Ra2 20.Ra2 Ba2 21.g3 (21.Nc3!? Qc6 22.Bf3–/+) 21...Ne2–+ 22.Qe2 Bd5 23.Rb1 b4 24.Ra1 Nb6 25.Qh5 Nd7 (25...Bf6–/+) 26.Ng5?? (26.Qe2 Nf6 27.Nc4–/+) 26...h6 (26...Nf6 27.Qe2–+) 27.Nge4 Bf7 28.Qd1 Rd8 29.Qc2 Bd5 30.Rc1 Qb7 31.f3 Qb5 32.Kf2 (32.Nc4 Rf8–/+) 32...Ra8 33.Ra1 (33.Nc4 Ra2–+) 33...Ra1 34.Ba1 Qa6 (34...b3 35.Qc3–+) 35.Bb2 Kf7 (35...Qb6 36.Kg2–+) 36.Nb3 (better is 36.Nc4!?–/+) 36...Qa4–+ 37.Na1 Qa2 38.Nd2 (38.Kg2 Kg8–+) 38...Ke6 (38...Kg8 39.Kg2–+) 39.Nab3 g5 (39...Kf7 40.Na1 Kg8 41.Kg2–+) 40.Nc1 (40.Nc4 Qa8–/+) 40...Qa7 41.Nc4 Bf6 (41...Qa8 42.Qe2–/+) 42.Ne3 Qa8 43.Nb3 (43.Nd5 Qd5 44.Kg2 g4–+) 43...Be7 (43...Bf3 44.Nc5 Nc5 45.Qc5+=) 44.Nd2 (44.Nd5 Qd5 (44...Kd5?! 45.d4 Qa7 46.Qe4 Ke6 47.de5+=) 45.Kg2 Kf7–/+) 44...Bd6 (44...Kf7!?–/+) 45.Nd5+= Qd5 (45...Kd5?? 46.Qc4 Kc6 47.Qe4 Kc7 48.Qa8+–) 46.h3 (46.Kg1 Kf7+=) 46...Nb6 47.Nc4 (47.Ne4+=) 47...Nd7 (47...g4 48.hg4 Bc7 49.Ne3+=) 48.Bc1 (48.Nd2!?=) 48...Qd4 49.Ne3 (49.Be3 Qc3 50.Qe2 Kd5+=) 49...Qc3–/+ 50.Qc3 (50.Qa2 b3 51.Qb1 Kf7–/+) 50...bc3 51.Nd1 c4 52.Nc3 (52.dc4 Bc5 53.Ke2 c2+=) 52...Bc5 (52...Nc5!? 53.Be3 cd3–+) 53.Ke2–/+ Bd4 ½–½. Mroz,Antoni – Gruszczynski,Boleslaw, corr 1AMM Poland, 1992.

6.a4 Bd6

7.Nf3 Ne7

8.Nbd2 0–0

9.Be2 c6

10.0–0 Qa5 11.c4 Rad8 12.d4 Bb4 13.cd5 cd5 14.Nb3 Qc7 15.Rc1 =.

10.0–0 a6 11.bc6 bc6 12.Ba3 c5 13.c4 Qc7 14.cd5 Nd5 15.Rc1 =.

10.0–0 cb5 11.ab5 A) 11...a6 12.ba6 (12.c4 ab5 13.cd5 Nd5 14.d4 Qb6 15.Ne4=+) 12...Ra6 13.Ra6 ba6 14.Qa1 Qb6 15.c4=; B) 11...Qb6 12.c4 dc4 13.Nc4 Qb5 14.Nd6 Qb2 15.d4=; C) 11...Qc7 12.Ba3 (12.c4 dc4 13.Nc4 Bc4 14.Rc1 e4 15.Nd2=+) 12...Ba3 13.Ra3 Rfc8 14.c4 dc4 15.Nc4=.

10.0–0 b6 11.Ba3 c5 12.c4 a6 13.ba6 Ra6 14.d4 Ra5 15.cd5 =.

10.0–0 Qb6 11.c4 cb5 12.ab5 dc4 13.Nc4 Qb5 14.Nd6 Qb2 15.d4 =

10.0–0 Qc7 11.Ba3 Ba3 (11...c5 12.c4 (12.a5 b6 13.ab6 ab6 14.c4 Ra7 15.Bb2=+) 12...a6 13.d4 Rfd8 14.Bd3 Bg4 15.cd5=; 11...cb5 12.ab5 (12.Bd6 Qd6 13.ab5 Rfc8 14.d4 a6 15.de5=) 12...Ba3 13.Ra3 Rfc8 14.c4 dc4 15.Nc4=) 12.Ra3 cb5 13.ab5 Rfc8 14.c4 dc4 15.Nc4 =.

10.0–0 Rc8 11.Ba3 Ba3 (11...c5 12.c4 (12.c3 Qa5 13.c4 Rcd8 14.d4 Qc7 15.Rc1=) 12...Qa5 13.cd5 Nd5 14.Nc4 Qc7 15.Rc1=) 12.Ra3 Qa5 13.Qa1 Nf5 14.c4 c5 15.cd5 =.

10.0–0 Qe8 11.Ba3 c5 12.c4 (12.a5 a6 13.b6 Nc6 14.Nb3 Qe7 15.d4=; 12.Nb3 Qb8 13.d4 e4 14.Ne5 Nb6 15.dc5=+; 12.c3 Qg6 13.a5 a6 14.Qb3 f5 15.c4=+; 12.d4 e4 13.Ne1 Qb8 14.dc5 Nc5 15.Bc5=) 12...Rd8 13.Qc2 Qf7 14.cd5 Nd5 15.Ne4 =.

10.0–0 Ng6 11.c4 Rc8 (11...a6 12.bc6 (12.ba6 ba6 13.Ba3 Ba3 14.Ra3 f5 15.cd5=; 12.Qc2 cb5 13.ab5 ab5 14.Ra8 Qa8 15.cd5=; 12.Re1 ab5 13.ab5 Qe7 14.Qc2 cb5 15.cd5=; 12.Bc3 ab5 13.ab5 cb5 14.cb5 Qb6 15.Qb3+=; 12.cd5 cd5 13.ba6 ba6 14.Ba3 Ba3 15.Ra3+=) 12...bc6 13.Ba3 Ba3 14.Ra3 f5 15.cd5=; 11...Qa5 12.d4 (12.Nb3 Qc7 13.cd5 Bd5 14.Rc1 Qb6 15.e4=; 12.Qc2 Rfc8 13.Rfc1 cb5 14.ab5 Qb6 15.Qc3=; 12.bc6 bc6 13.Qc2 Rab8 14.Rfb1 Qc7 15.d4=) 12...e4 13.Ne1 Bb4 14.Nb3 Qc7 15.c5+=; 11...Rf7 12.Qc2 Rc8 13.Ba3 Ba3 14.Ra3 dc4 15.Nc4=; 11...f5 12.Rc1 (12.cd5 cd5 13.a5 Rc8 14.a6 b6 15.Rc1=; 12.bc6 bc6 13.Ba3 Ba3 14.Ra3 f4 15.Rb3+=; 12.Qc2 Qf6 13.Rfc1 Rac8 14.cd5 Bd5 15.Nc4=; 12.Bc3 f4 13.Rb1 Qf6 14.a5 Rab8 15.e4+=; 12.Rb1 cb5 13.ab5 Qf6 14.d4 e4 15.Ne1=; 12.a5 cb5 13.cb5 Rc8 14.a6 b6 15.Rc1=) 12...cb5 13.ab5 a5 14.cd5 Bd5 15.e4=) 12.Nb3 (12.cd5 cd5 13.a5 Qe7 (13...Qc7= 14.a6 ba6 15.Ra6=) 14.Rc1 Bb4 15.Qa4+=; 12.Ba3 Ba3 13.Ra3 Qa5 14.Ra1 Rfd8 15.Qc2=; 12.Bc3 Qe7 13.Rb1 cb5 14.ab5 dc4 15.dc4=; 12.Rc1 a6 13.cd5 cd5 14.Rc8 Qc8 15.Qa1+=; 12.Qc2 f5 13.Rfc1 f4 14.e4 d4 15.Rcb1=; 12.Re1 Qe7 13.Rc1 Rfd8 14.Bc3 cb5 15.ab5+=; 12.Rb1 Qa5 13.Nb3 Qc7 14.bc6 Qc6 15.Nbd4=; 12.a5 cb5 13.cb5 Qe7 14.Rc1 f5 15.Qa4+=; 12.Qe1 Qe7 13.bc6 Rc6 14.cd5 Bd5 15.e4+=) 12...f5 (12...Qe7 13.Qc2 Bb4 14.Rfc1 f5 15.Rab1=) 13.c5 Bb8 (13...Be7 14.d4 e4 15.Nfd2+=) 14.g3 (14.Rc1 Qe7 15.Qc2=) 14...f4 (14...Qf6 15.Qc2+=) 15.ef4 ef4 16.d4 (16.Bd4 Qc7=) 16...Bh3 17.Re1 fg3 18.hg3 (18.fg3 Bf5=) 18...Qf6+= 19.Nbd2 (19.Bc1 Rce8 20.Bg5 Qf5–/+) 19...Nc5 (19...Rce8 20.Qb3+=) 20.Ba3= Ne4 21.Bf8 Rf8 (worse is 21...Nf8 22.Ne4 de4 23.Bc4 Ne6 24.Nd2 cb5 25.Ne4+/–; 21...Qf8? 22.Ne4 de4 23.Ng5+–; worse is 21...Kf8 22.Rc1+=) 22.Ra3? (better is 22.Ne4 de4 23.Bc4 Kh8 24.Re4 Qf3 25.Qf3 Rf3 26.bc6 bc6 27.Be6 Be6 28.Re6=) 22...Nf2!–+ 23.Kf2?? (23.Qc1 Bg3 24.Bf1–+) 23...Qd4 24.Re3 Bg3 25.Kg1 Qe3 26.Kh1 Nf4 (26...Bg2! 27.Kg2 Qf2 28.Kh1 Rf5 29.Bf1 Rh5 30.Bh3 Rh3 31.Nh2 Rh2) 27.Bf1–+ Be1 28.Ne1 (28.Qe1 Qe1 29.Ne1 Bf1 30.Nf1 cb5 31.ab5–+) 28...Bf1 (28...Rf6 29.Qf3 Qe1 30.bc6 Bg2 31.Qg2 Ng2 32.Ne4 Qf1 33.Kh2 Rh6 34.Kg3 de4 35.cb7 Qf3) 29.Nf1 Qe4 (better is 29...Qf2 30.Qf3 Qe1 31.bc6 bc6–+) 30.Kh2 (30.Nf3 Nd3 31.N1d2 Nf2 32.Kg1 Nd1 33.Ne4 de4 34.Nd4–+) 30...Ne2 31.Ng2 (31.Nf3 Qf4 32.Kg2 Qf3 33.Kh2 Qh5 34.Kg2 Qg4 35.Kh2 Rf2 36.Kh1 Qg2) 31...Rf2 32.Nfe3 (32.Qd5 cd5 33.Kh3 Ng1 34.Kg3 Rg2) 32...Qh4 0–1. Georgevskij – Sikulin, SU, 1967.

10.0–0 Ng6 11.Re1 A) 11...a6 12.ba6 (12.bc6 bc6 13.c4 Rb8 14.Ba3 Ba3 15.Ra3+=; 12.c4 ab5 13.ab5 Ra1 14.Qa1 Qa8 15.Qb1+=) 12...ba6 13.c4 Rb8 14.Ba3 Qe7 15.Bd6=; B) 11...Qc7 12.c4 (12.Ba3 Ba3 13.Ra3 a6 14.bc6 Qc6 15.a5+=; 12.c3 cb5 13.ab5 a6 14.ba6 ba6 15.Ba3+=; 12.bc6 bc6 13.c4 Rab8 14.Ba3 Ba3 15.Ra3+=) 12...dc4 13.Nc4 Bc4 14.dc4 e4 15.Nd4=; C) 11...Rc8 12.c3 (12.Ba3 Ba3 13.Ra3 Qa5 14.Qc1 Rfe8 15.Nb3=; 12.c4 Qe7 13.Rc1 Rfd8 14.Bc3 cb5 15.ab5+=; 12.Nb3 Qc7 13.Ba3 Ba3 14.Ra3 Kh8 15.Ra2=; 12.Rc1 Qe7 13.c4 Rfd8 14.Bc3 Ba3 15.Ra1+=) 12...Qa5 13.Qc2 Rfe8 14.c4 Qc7 15.Ba3=; D) 11...Qa5 12.c4 (12.Nb3 Qc7 13.Ba3 Ba3 14.Ra3 Rfc8 15.c4+=; 12.bc6 bc6 13.c4 Rfb8 14.Qc2 Rb7 15.Bc3=) 12...Rac8 13.Qc2 Rfd8 14.Rec1 Qc7 15.cd5=; E) 11...Qe7 12.c4 (12.c3 cb5 13.ab5 a6 14.ba6 ba6 15.c4=; 12.bc6 bc6 13.Rb1 Rab8 14.c4 Rb7 15.Qc2+=; 12.Nb3 Rfc8 13.Qd2 cb5 14.ab5 d4 15.Rec1+=) 12...a6 13.bc6 bc6 14.Rb1 Rfb8 15.Qc2=; F) 11...f5 12.Rb1 (12.Nb3 f4 13.bc6 bc6 14.e4 d4 15.c4+=; 12.bc6 bc6 13.c4 Rb8 14.Rb1 f4 15.e4+=; 12.Ba3 Ba3 13.Ra3 Qe7 14.Qc1 a6 15.bc6+=; 12.c3 a6 13.bc6 bc6 14.Rb1 Rb8 15.c4+=; 12.c4 Qf6 13.Rc1 Rac8 14.Qc2 Rc7 15.Red1+=; 12.Rc1 a6 13.bc6 bc6 14.c4 f4 15.cd5+=) 12...cb5 13.ab5 f4 14.e4 d4 15.c3=; G) 11...a5 12.c4 (12.c3 cb5 13.ab5 Qb6 14.c4 dc4 15.dc4+=) 12...Rc8 13.Ba3 Ba3 14.Ra3 Qe7 15.Qb3=; H) 11...Re8 12.Ba3 (12.c3 a6 13.bc6 bc6 14.Ba3 Ba3 15.Ra3+=; 12.c4 a6 13.bc6 bc6 14.Ba3 Ba3 15.Ra3+=) 12...Ba3 13.Ra3 Qe7 14.Ra1 a6 15.bc6=; I) 11...Rb8 12.c4 (12.c3 f5 13.c4 Rc8 14.Ba3 Ba3 15.Ra3+=) 12...Rc8 13.bc6 bc6 14.Qc2 Rb8 15.Rab1=; J) 11...Qb6 12.c4 Qa5 13.Nb3 Qc7 14.cd5 Bd5 15.e4=; K) 11...Qe8 12.c4 (12.Ba3 Ba3 13.Ra3 Qe7 14.Ra1 Rfc8 15.Nb3=; 12.c3 a6 13.bc6 bc6 14.Ba3 Ba3 15.Ra3=) 12...a6 13.bc6 bc6 14.Ba3 Ba3 15.Ra3=; L) 11...Rf7 12.c3 (12.c4 dc4 13.dc4 Nc5 14.Qc2 Rd7 15.Ba3=) 12...a6 13.bc6 bc6 14.Ba3 Ba3 15.Ra3=; M) 11...cb5 12.ab5 a6 13.c4 dc4 14.ba6 cd3 15.Bd3+=.

6.Nd2 Bd6

7.Ngf3 Ne7

8.Be2 0–0

9.0–0 c6

10.a4 Qa5 11.Nb3 (11.c4 A) 11...Rad8 12.d4 Bb4 13.cd5 cd5 14.Nb3 Qc7 15.Rc1=; B) 11...Rfd8 12.e4 (12.Qc2 Rac8 13.Bc3 Qc7 14.Rfc1 dc4 15.Nc4=; 12.cd5 cd5 13.Nb3 Qc7 14.Rc1 Qb8 15.a5=; 12.Re1 Rac8 13.d4 c5 14.cd5 Bd5 15.e4+=; 12.d4 e4 13.Nb3 Qc7 14.c5 Bc5 15.dc5+=) 12...Nc5 13.Qc2 d4 14.Ba3 Rd7 15.Bc5+/–; C) 11...Rae8 12.h3 (12.Qc1 Rc8 13.Nb3 Qb6 14.a5 Qd8 15.Ba3=; 12.Re1 Bb4 13.Qc2 Nc5 14.Ba3 Ba3 15.Ra3=; 12.cd5 cd5 13.Nb3 Qb6 14.Bc3 a6 15.Rc1=; 12.Nb3 Qc7 13.Qc2 Rc8 14.Ba3 b6 15.Bd6=; 12.Ba3 Ba3 13.Ra3 cb5 14.cb5 Rc8 15.Ra2=+; 12.Qc2 Rc8 13.Rfc1 Rfe8 14.e4 d4 15.Nb3=) 12...a6 13.d4 e4 14.Ne1 Bb8 15.c5=; D) 11...Rac8 12.Qc2 (12.Nb3 Qc7 13.Ba3 Ba3 14.Ra3 Rfd8 15.Qc2=; 12.Re1 Bb4 13.Qc2 Nc5 14.Rec1 Rfd8 15.d4=) 12...Rfe8 13.Rfc1 Qc7 14.Ba3 Ba3 15.Ra3=) 11...Qc7 12.h3 (12.Nbd2 cb5 13.ab5 a6 14.ba6 ba6 15.Ba3=+; 12.Ba3 Ba3 13.Ra3 Rfc8 14.Ra2 cb5 15.ab5=+; 12.Nfd2 cb5 13.ab5 a5 14.ba6 Ra6 15.c4=+; 12.Kh1 Rac8 13.c3 a6 14.ba6 ba6 15.d4=+) 12...Rac8 13.c3 c5 14.c4 Rcd8 15.Qc2=.

10.a4 a6 11.bc6 bc6 12.c4 (12.c3 Rb8 13.Qc2 Qe8 14.Ba3 Ba3 15.Ra3=+; 12.Ba3 Ba3 13.Ra3 Qa5 14.Nb3 Qb4 15.Qa1=+; 12.Rb1 Qa5 13.c4 Rfb8 14.Qc2 Nc5 15.Ba3=; 12.a5 Rb8 13.Nb3 Qc7 14.Ba3 Ba3 15.Ra3=+; 12.Nb3 Qc7 13.Ba3 Ba3 14.Ra3 Nf5 15.d4=+; 12.Re1 Rb8 13.Ba3 Ba3 14.Ra3 Qc7 15.c4=+; 12.Bc3 Rb8 13.Nb3 c5 14.Rb1 Qc7 15.Re1–/+) 12...Rb8 13.Qc2 Qa5 14.Rfc1 Rb7 15.Bc3 =.

10.a4 cb5 11.ab5 Qc7 (11...a6 12.ba6 (12.c4 ab5 13.cd5 Nd5 14.d4 Qb6 15.Ne4=+) 12...Ra6 13.Ra6 ba6 14.Qa1 Qb6 15.c4=; 11...Qb6 12.c4 Rfc8 13.cd5 Nd5 14.d4 Bb4 15.Nc4+=) 12.Ba3 (12.c4 dc4 13.Nc4 Bc4 14.Rc1 e4 15.Nd2=+) 12...Ba3 13.Ra3 Rfc8 14.c4 dc4 15.Nc4 =.

10.a4 b6 11.Ba3 c5 12.c4 a6 13.ba6 Ra6 14.d4 Ra5 15.cd5 =.

10.a4 Qc7 11.c4 a6 12.cd5 cd5 13.Rc1 Qb6 14.d4 e4 15.Ne1 =.

10.a4 Rc8 11.Ba3 Ba3 12.Ra3 Qa5 13.Qa1 c5 14.Nb3 Qc7 15.a5 =.

10.a4 Qe8 11.Ba3 c5 12.c4 Rd8 13.Qc2 Qf7 14.cd5 Nd5 15.a5 =.

10.a4 Ng6 11.c4 a6 12.bc6 bc6 13.Ba3 Ba3 14.Ra3 f5 15.cd5 =.

10.a4 Qb6

11.Qb1 A) 11...Qa5 A1) 12.c4 Nc5 (12...a6 13.Rc1 ab5 14.ab5 Qb6 15.bc6 bc6 16.Qc2 Rfb8) 13.Qc2 Rfe8 14.h3 Qc7 15.Bc3 Red8 16.Rfe1 a6; A2) 12.Ba3 Ba3 (12...Qc7 13.Bd6 Qd6 14.Qb2 a6 15.c3 Qc7 16.b6 Qd6) 13.Ra3 Nf5 14.h3 a6 15.bc6 bc6 16.Qb7 Nc5; A3) 12.Nb3 Qc7 (12...Qd8 13.c4 Qb6 14.Bc3 Qc7 15.Qc2 a6 16.bc6 Nc6) 13.c4 Rad8 14.Qc2 dc4 15.dc4 Nc5 16.Nc5 Bc5; B) 11...a6 B1) 12.bc6 bc6 (12...Nc6 13.Bc3 Qc7 14.Qb2 Rac8 15.h3 Nd8 16.Nb1 Bf7) 13.Bc3 Qc7 14.Qa2 Bf7 15.Nb3 e4 16.Ba5 Nb6; B2) 12.ba6 Qa6 (12...Ra6 13.a5 Qc7 14.Bc3 Raa8 15.g3 Rfe8 16.Re1 c5) 13.a5 Bc7 14.Re1 c5 15.c4 Qc6 16.cd5 Nd5; B3) 12.a5 Qb5 (12...Qd8 13.bc6 bc6 14.Qa2 Rb8 15.Rab1 Bf7 16.c4 Nc5) 13.c4 dc4 14.dc4 Qc5 15.Qd3 f5 16.Ng5 e4; C) 11...Rac8 C1) 12.c3 Qc7 (12...Rfe8 13.c4 Bb4 14.Rd1 Ng6 15.cd5 cd5 16.Be5 Qa5) 13.Qc2 Nc5 14.c4 a6 15.h3 ab5 16.ab5 cb5; C2) 12.g3 Rfe8 (12...a6 13.bc6 Qc6 14.c4 Nc5 15.d4 Bf5 16.Qa2 Nd3) 13.c4 Qa5 14.Qc2 Nc5 15.Bc3 Qc7 16.d4 Bf5; C3) 12.c4 Qc7 (12...Qd8 13.Qc2 Nc5 14.Nb3 Nb3 15.Qb3 Qc7 16.h3 Nf5) 13.Qc2 Nc5 14.h3 Rfe8 15.Bc3 Qd7 16.Nb3 Nb3; D) 11...cb5 12.ab5 Qb5 (12...Nf5 13.e4 Ne7 14.d4 Rac8 15.Bd3 ed4 16.Nd4 Bf4) 13.Ba3 Qb1 14.Rfb1 Ba3 15.Ra3 b6 16.d4 e4.

11.Rb1 A) 11...Nc5 A1) 12.c4 Qc7 (12...Qa5 13.bc6 Nc6 14.Ba3 Qc7 15.cd5 Bd5 16.Ne4 b6) 13.Qc2 cb5 14.ab5 a5 15.ba6 Na6 16.Rfc1 Nc5; A2) 12.bc6 Qc6 13.a5 Nf5 14.c4 dc4 15.Nc4 Bc7 16.Rc1 b5; A3) 12.Ba3 Qc7 (12...Ne4 13.Bb2 Nd2 14.Qd2 cb5 15.ab5 Rac8 16.h3 Nf5) 13.d4 Na4 14.Bd6 Qd6 15.de5 Qc7 16.ef6 Rf6; B) 11...Qc7 B1) 12.c3 a6 (12...Rfe8 13.Qc2 Nc5 14.c4 a6 15.b6 Qd7 16.a5 Red8) 13.bc6 Nc6 14.Qc2 Qa5 15.c4 Qc7 16.cd5 Bd5; B2) 12.Ra1 a6 (12...a5 13.c4 Nc5 14.cd5 Bd5 15.bc6 Nc6 16.Rc1 Rac8) 13.bc6 bc6 14.Nb3 Rab8 15.Bc3 c5 16.h3 d4; B3) 12.c4 Nc5 (12...Rad8 13.Qc2 Nc5 14.h3 Rfe8 15.Bc3 Bf5 16.Rfd1 h6) 13.Qc2 Rad8 14.h3 Qa5 15.Ra1 Rc8 16.Nb3 Nb3; C) 11...Rad8 C1) 12.c3 Qa5 (12...Rfe8 13.c4 Qc7 14.cd5 Nd5 15.bc6 Qc6 16.d4 ed4) 13.Qc2 Nc5 14.Ra1 cb5 15.ab5 Qb5 16.Ra7 Nc6; C2) 12.Qc1 Qc7 (12...Qa5 13.c4 Rc8 14.Ba3 c5 15.Ra1 a6 16.Bb2 Ra8) 13.c4 Nc5 14.Qc2 Rf7 15.h3 Qa5 16.Ra1 Rc8; C3) 12.c4 Qc7 (12...Bb4 13.cd5 Nd5 14.d4 cb5 15.Bb5 ed4 16.Bd4 Qc7) 13.Rc1 Nc5 14.cd5 Nd5 15.d4 ed4 16.ed4 Nd7; D) 11...a6 D1) 12.ba6 Qa6 13.d4 Qa4 14.de5 Be5 15.Be5 fe5 16.Ng5 Bf5; D2) 12.Bd4 ed4 (12...Qa5 13.bc6 Nc6 14.Ba1 Nb6 15.c4 Bb4 16.cd5 Bd5) 13.bc6 Qc7 14.cd7 de3 15.fe3 Nf5 16.Nd4 Bh2; D3) 12.bc6 Qc6 13.a5 Qc7 14.Nb3 Rac8 15.Rc1 b5 16.Qd2 Nc6.

11.Qc1 A) 11...Qc7 A1) 12.h3 a6 (12...Rab8 13.c4 Nc5 14.d4 ed4 15.ed4 Ne4 16.cd5 cd5) 13.bc6 Nc6 14.Nb3 Nc5 15.Bc3 Nb3 16.cb3 Rac8; A2) 12.h4 a6 (12...Rad8 13.h5 Rfe8 14.h6 gh6 15.c4 Kg7 16.d4 c5) 13.bc6 Nc6 14.Nb3 Nc5 15.Bc3 e4 16.Nc5 Bc5; A3) 12.c4 Rac8 (12...Nc5 13.d4 ed4 14.ed4 Ne4 15.cd5 Bd5 16.Ne4 Be4) 13.h3 Nc5 14.Qc2 Rfd8 15.Bc3 Rb8 16.Rfc1 Ra8; B) 11...Nf5 B1) 12.bc6 Qc6 (12...bc6 13.e4 Ne7 14.Ba3 Qc7 15.c4 Ba3 16.Qa3 de4) 13.e4 de4 14.de4 Ne7 15.Bb5 Qc7 16.Nb3 Nb6; B2) 12.c4 Bb4 (12...Rac8 13.e4 de4 14.Ne4 Nc5 15.g4 cb5 16.gf5 Bf5) 13.Bc3 a5 14.cd5 cd5 15.Bb4 ab4 16.Qb2 Qa5; B3) 12.e4 Nd4 (12...Ne7 13.d4 ed4 14.Nd4 Nc5 15.Re1 Rad8 16.bc6 bc6) 13.Nd4 ed4 14.f4 Bc5 15.bc6 Qc6 16.f5 Bf7; C) 11...Bf5 C1) 12.e4 Bg6 (12...Be6 13.d4 Bb4 14.c3 Bd6 15.c4 Ng6 16.g3 Bb4) 13.c4 Nc5 14.Nh4 Bf7 15.d4 ed4 16.Bd4 Qc7; C2) 12.c4 Nc5 (12...Bb4 13.Nb3 a5 14.d4 cb5 15.c5 Qc7 16.Bb5 e4) 13.Qc2 Ng6 14.h4 Bg4 15.bc6 bc6 16.d4 ed4; C3) 12.Ba3 cb5 (12...Qc7 13.e4 Bg6 14.Bd6 Qd6 15.Qa3 Qa3 16.Ra3 Nc5) 13.Bd6 Qd6 14.ab5 Nc5 15.Qb2 Be6 16.d4 ed4; D) 11...cb5 12.ab5 Qb5 (12...Bb4 13.Ba3 Ba3 14.Qa3 Nf5 15.Qa5 Nd6 16.c4 dc4) 13.c4 dc4 14.Nc4 Bb4 15.Ba3 Nc6 16.Bb4 Nb4.

11.c4 Qa5 A) 12.h3 a6 (12...Rfc8 13.Nb3 Qc7 14.Qd2 dc4 15.dc4 Rd8 16.Bd3 Nc5) 13.Qc2 Nc5 14.Rfe1 ab5 15.ab5 Qc7 16.bc6 bc6; B) 12.h4 a6 (12...Qc7 13.Rc1 Nc5 14.bc6 Nc6 15.d4 ed4 16.ed4 Na6) 13.bc6 bc6 14.Nb3 Qb6 15.Rb1 Rab8 16.Bc3 Qc7; C) 12.Nb3 Qc7 (12...Qd8 13.h3 Qc7 14.Qc2 Rfd8 15.Rfd1 Rac8 16.Qc3 Ng6) 13.Qc2 Rac8 14.Rfc1 Bb4 15.h3 Rfd8 16.Nh4 Re8.

11.c4 Bb4 A) 12.bc6 bc6 (12...Qc6 13.Rc1 Rfc8 14.cd5 Qd5 15.Nc4 Nb6 16.Qb3 a5) 13.Rb1 Rab8 14.Bc3 c5 15.Qc2 Qc6 16.cd5 Nd5; B) 12.Qb3 Qa5 (12...a5 13.d4 e4 14.c5 ef3 15.cb6 fe2 16.Rfe1 Bd2) 13.cd5 Nd5 14.bc6 Nf4 15.Qd1 Ne2 16.Qe2 bc6; C) 12.Qc2 Nf5 (12...Rac8 13.Rfc1 Bf5 14.e4 de4 15.de4 Be6 16.a5 Qc7) 13.Rfc1 Rfe8 14.cd5 cd5 15.h3 Nd6 16.Qb3 a5.

11.c4 cb5 12.ab5= a6 (12...Rfc8= 13.Qb3 dc4 14.Nc4 Qc7 15.Rfc1 Nc5 16.Qa3 Nd5; 12...dc4 13.Nc4 Qb5 14.Nd6 Qb2 15.d4 Qb4 16.de5 Ne5) 13.Qb3 (13.d4 ab5 14.c5 Bc5 (14...Ra1 15.Qa1 Nc5 16.dc5 Bc5) 15.dc5 Nc5= 16.Ra8 Ra8) 13...Nc5 (13...ab5 14.Qb5 Qb5 15.cb5–/+ Rfc8 16.Ra8 Ra8) 14.Qc2 (14.Qa2!? e4 15.de4 de4 16.Nd4= Bf7) 14...ab5+= 15.cd5 Nd5 16.d4 Nd7 (better is 16...Na4!? 17.de5 Rfc8+=; 16...ed4–/+) 17.de5= Ne5 (17...fe5 18.Ng5 Bf5 19.Qb3+–) 18.Ne5 Be5 (18...Ra1 19.Ra1 Be5 20.Be5 fe5 21.Qb3=) 19.Be5 (19.Ra8 Ra8 20.Be5 fe5=) 19...fe5 20.Qb2 (20.Ra8 Ra8 21.Qb2 b4=) 20...Ra1–/+ 21.Ra1 Ne3 22.Qe5 (22.fe3 Qe3 Double attack) 22...Nc4–+ 23.Nc4 bc4 (better is 23...Qf2!? 24.Kh1 Bc4–+) 24.Bf3–/+ Rc8 (24...Bf7 25.h4–/+) 25.Bb7 (25.Bd5 Bd5 26.Qd5 Kh8 27.Qc4 Qb1 (27...Rc4?? 28.Ra8 Rc8 29.Rc8 Qd8 30.Rd8) 28.Rb1 Rc4=) 25...Qb7 26.Qe6 Kh8 27.Rc1 (27.g3 h6=) 27...c3+= 28.h3 (28.Qa2 g6+=) 28...h6 (28...c2 29.h4+=) 29.Kh2 (29.Qa2 Rc7+=) 29...c2–/+ 30.g3 Qc7 (30...Rc3 31.Qg6 Qc8 32.Qe4–/+) 31.Qe4 (31.h4 Qc5 32.Kg2 h5+=) 31...Qc3–/+ 32.Qf5 Qc4 33.Kg2 Kg8 34.h4 (34.Qg4 Qg4 35.hg4 Kf7+=) 34...Rc5 35.Qd7 (35.Qg6 Qe2–/+) 35...Qe4 (35...Re5 36.Qd8 Kh7 37.Qf8–/+) 36.Kh2 Kh7 37.Qd2 Rc7 (37...Rc4 38.f3 Qc6 39.Qd3 Kg8 40.Kg2+=) 38.f4 (38.f3 Qf5+=) 38...Rc6–/+ 39.Kg1 (39.Kh3 Rc4–/+) 39...Qc4 (better is 39...Qf3 40.Kh2 Rc3–+) 40.Kf2 (40.h5 Qc5 41.Kf1 Qb5 42.Kg2 Rc5–/+) 40...Qc5 41.Qe3 (41.Ke2 Rc8–/+) 41...Qd5 (41...Kg6 42.g4 h5 43.gh5 Kh5 44.Qc5 Rc5 45.Ke3–+) 42.Qf3? (42.Qe5 Qd2 43.Qe2 Qe2 (43...Qc1?! 44.Qd3 Rg6 45.h5 Qe1 46.Ke1 c1Q 47.Ke2 Qb2 48.Kf1 Qa1 49.Ke2 Qa2 50.Kf1=) 44.Ke2 Kg6–/+) 42...Qd2 (better is 42...Qf3 43.Kf3 Kg6–+) 43.Qe2= Qc1 (better is 43...Qc3=) 44.Qe4?? (better is 44.Qd3 Rg6 45.h5 Qe1 46.Ke1 c1Q 47.Ke2 Qb2 48.Kf1 Qa1 49.Ke2 Qa2 50.Kf1 Qa1 51.Ke2 Qb2 52.Kf1 Qa1=) 44...Rg6–+ 45.h5 Qd2 46.Kf3 Qd1 (better is 46...Qc3 47.Ke2 Qc8 48.hg6 Kh8 49.Qe3–+) 47.Kg2 Qh5 48.Qc2 Qd5 49.Kh2 (49.Kf2–+) 49...Qf3 (49...Qf3 50.Qg2 Qd3–+) 0–1. Aretxabaleta Saez,Julian – Vega Gutierrez,Belinda (2180), ch–ESP Abierto, Leon ESP (1), 2006.

11.c4 Qc7 A) 12.cd5 cd5 (12...Nd5 13.Ne4 cb5 14.ab5 Nc5 15.Nc5 Bc5 16.d4 ed4) 13.Rc1 Qb6 14.Qb3 Nc5 15.Qa2 Qa5 16.d4 ed4; B) 12.g3 Rad8 (12...Rfd8 13.Rc1 Rab8 14.cd5 Nd5 15.d4 Bh3 16.Re1 ed4) 13.Qc1 Rc8 14.Qc2 Nc5 15.d4 Bf5 16.Qc3 ed4; C) 12.Rc1 Nc5 (12...Bb4 13.Qb3 c5 14.d4 Rad8 15.Rfd1 ed4 16.ed4 Rfe8) 13.cd5 Nd5 14.Ne4 Ne4 15.de4 Nb4 16.Bc4 Bc4.

11.c4 Nf5 A) 12.Qc2 Bb4 (12...Rac8 13.e4 de4 14.Ne4 Be7 15.Rfd1 Nc5 16.a5 Qc7) 13.Rfc1 Rfe8 14.bc6 bc6 15.cd5 cd5 16.Rab1 Qa6; B) 12.bc6 bc6 13.Rb1 Bb4 14.Qc2 Rab8 15.h4 Bf7 16.Bc3 Ne3; C) 12.a5 Qc7 13.a6 dc4 14.ab7 Qb7 15.bc6 Qb2 16.cd7 Qb5; D) 12.e4 de4 (12...Nd4 13.Nd4 ed4 14.Bg4 f5 15.ef5 Bf5 16.Bf5 Rf5) 13.Ne4= Bb4 14.a5 Qc7 15.Qa4 Bc5 16.h3 Rab8.

11.bc6 A) 11...Nc6 A1) 12.Nb3 Nc5 (12...Bb4 13.c3 Bd6 14.a5 Qc7 15.h3 Rad8 16.Qc2 Rfe8) 13.Nc5 Bc5 14.Rb1 Qc7 15.d4 Be7 16.de5 fe5; A2) 12.Qb1 Rac8 (12...Nc5 13.Bc3 Qc7 14.Nb3 Na6 15.Qb2 Ncb4 16.Bb4 Bb4) 13.c4 Na5 14.Bc3 dc4 15.Ba5 Qa5 16.Nc4 Qc7; A3) 12.Rb1 Qc7 (12...Qd8 13.c4 Rc8 14.Bc3 Nc5 15.cd5 Bd5 16.Qc2 Qd7) 13.c4 Rad8 14.cd5 Bd5 15.Rc1 Nc5 16.d4 ed4; B) 11...bc6 B1) 12.Rb1 Qa5 (12...Qc7 13.c4 Rab8 14.h3 Qa5 15.Qc1 Bb4 16.Rd1 Ng6) 13.Qc1 Rab8 14.Nb3 Qc7 15.Qd2 c5 16.g3 Nb6; B2) 12.Bc3 Rab8 (12...Qc7 13.Nb3 Rab8 14.Qd2 c5 15.h3 e4 16.de4 de4) 13.Nb3 c5 14.Rb1 Qc7 15.Qd2 Nb6 16.a5 Na4; B3) 12.Nb3 Rab8 (12...Qc7 13.Qd2 Rfe8 14.Bc3 Rab8 15.Rfb1 c5 16.g3 e4) 13.Rb1 Qc7 14.Qd2 Rb4 15.Ra1 Rfb8 16.Bc3 R4b7; C) 11...Qc6 C1) 12.c3 Nf5 (12...Rad8 13.c4 Rfe8 14.h3 Rc8 15.Rc1 Qa6 16.d4 dc4) 13.Qc2 Rac8 14.h3 Rfd8 15.Rfc1 Be7 16.c4 dc4; C2) 12.Qb1 Rad8 (12...Rac8 13.Rc1 Nc5 14.c4 Qa6 15.d4 Bf5 16.dc5 Bb1) 13.Rc1 Nc5 14.d4 ed4 15.Nd4 Qd7 16.Ne6 Qe6; C3) 12.c4 Rac8 (12...Rad8 13.Rc1 Rc8 14.cd5 Qd5 15.Nc4 Nc5 16.d4 ed4) 13.Rc1 Qa6 14.h3 Rfd8 15.cd5 Rc1 16.Qc1 Bd5; D) 11...Qb2 D1) 12.Rb1 Qc3 (12...Qa3 13.cd7 Qa4 14.Rb7 Rab8 15.Rb8 Rb8 16.d8Q Rd8) 13.cd7 Bd7 14.Rb7 Ba4 15.Qa1 Qc6 16.Rbb1 Rab8; D2) 12.cd7 Qc3 (12...Qb6 13.Qb1 Bd7 14.c4 Rfc8 15.a5 Qc7 16.Qb3 Be6) 13.Qb1 Qc6 14.c4 Qd7 15.d4 Rac8 16.c5 Bb8.

6.Nf3 Bd6

7.Be2 Ne7 8.0–0 0–0 9.c4 dc4 10.dc4 Nc5 11.Nc3 Qe8 12.Qc2 Qf7 13.Nd2 Bf5 14.e4 (14.Nde4 Rfd8=) 14...Be6+= 15.Nd5 c6 16.Ne7 Qe7 17.Rfe1 Rac8 18.a4 cb5 19.ab5 a6 20.Qb1 (20.ba6 ba6 21.Bc3 Rb8=) 20...Qc7 21.Rc1 a5 22.Ba3 (22.Qc2 Rfd8+=) 22...b6 23.Nf1 Qe7 24.f3 (24.Ne3!?+=) 24...f5–/+ 25.ef5 (25.Ng3 fe4 26.fe4 g6–/+) 25...Bf5–+ (25...Rf5?! 26.Rd1–/+) 26.Qa2 e4 27.Re1 Bh3! 28.gh3 Qg5 29.Kh1 ef3 30.Bf3 Rf3 31.Qg2 Qg2 32.Kg2 Rc3 (32...Rf6 33.Ne3 Rg6 34.Kh1–/+) 33.Rec1 (33.Ne3 Re8 34.Nf5 Re1 35.Re1 Bf8 (35...Ra3?! 36.Nd6 Ra2 37.Kg1=) 36.Bc5 Bc5–+) 33...Rb3 34.Rd1 (34.Nd2 Rd3 35.Ra2 Re8 36.Bc5 Bc5–+ (36...bc5?! 37.Nf3=)) 34...Bf8 35.Nd2 Rc3 36.Bb2?? (better is 36.Rdc1 Rd3 37.Rc2–+) 36...Rc2 37.Bd4 (37.Bc1 Rd8 38.Kf3 Nd3–+) 37...Rd8 38.Be3 Nb3 0–1. Walter,Mario (2050) – Mehlhorn,Uwe (2440), RSX9E – A00 – Sokolsky–2, 2004.

7.Be2 Ne7 8.0–0 0–0 9.Nbd2 c6 10.bc6 bc6 (10...bc6 11.c3 Rb8=+). Dilling,Ralf – Hasler,Ulrich, corr SOK–88–26, 1989.

5.d4 Bb4

6.Bc3 Bd6+=.

6.Nd2 Bd2 7.Qd2= Nd7 8.de5 Ne5 9.f4 Nd7 10.Nf3 Ne7 11.Bd3 0–0 12.Qc3 h6 (12...Nf5 13.Nd4 Nd4 14.ed4=) 13.Nd4+= Bf7 14.g4 (14.0–0 Re8+=) 14...Nb6= 15.a4 Nc4 16.Bc4 dc4 17.0–0–0 Nd5 18.Qd2 Qe7 Exerts pressure on the backward pawn 19.Nf5 Qe4 20.Qd4 Rfe8 The pressure on the backward pawn e3 grows 21.Qe4 Re4 22.Rd4 Rae8 23.Re4 Re4 24.Bd4 b6 25.Kd2 Bg6 26.Ng3 Re8 27.f5 Bf7 28.e4 Nb4 29.Be3 Rd8 30.Kc3 c5 31.Ra1 Kh7 32.h4 Be8 (32...Re8 33.Bd2+/–) 33.g5 (33.Kc4?? Nc2 34.Bc5 Na1–+ (34...bc5?! 35.Rg1–+)) 33...Rd7 (33...a5 34.g6 Kg8 35.Re1+–) 34.g6+– Kg8 35.Re1 a6 36.a5 ba5 37.b6 Rd8 38.Bc5 Bb5 39.Bb4 ab4 40.Kb4 Kf8 41.e5 fe5 42.Re5 Rd7 (42...Rb8 43.Ka5+–) 43.Ne4 Rd1 44.Nc3 Rd6 45.Ka5 Bc6 46.Rc5 Bf3 47.Rc4 Rd7 (47...Rf6 48.Rc8 Ke7 49.Rc7 Kf8 50.Ka6 Rf5 51.Nb5+–) 48.Rc8 Ke7 49.f6! (49.f6 Kf6 50.Rf8 Kg6 51.Rf3+–) 1–0. Kilpatrick,Robert – Sprott,George R, corr ch–SCCA, 1989.

6.c3 Bd6

7.Ba3 Ne7=+.

7.Nd2 a6 8.de5 fe5 9.c4=.

7.Nd2 c6 8.a4 (8.c4 dc4 9.Nc4 Bb4 10.Nd2 ed4 11.Bd4 Qe7=) 8...a6 (8...Ne7 9.Ba3+=) 9.Be2 (9.de5 fe5 10.c4 Nf6+=) 9...Ne7+= 10.h4 (10.de5 fe5 11.c4 0–0+=) 10...0–0–/+ (10...0–0 11.ba6 Na6–/+). Grund,Karl – Argomaniz, corr, 1988.

7.Nd2 Nh6 8.c4= ed4 (8...dc4 9.de5 Bb4 10.Rc1 fe5 11.Bc4 Bc4 12.Rc4+=) 9.ed4 (9.Bd4 c5 10.Bb2 0–0=) 9...dc4+= 10.Bc4 Bc4 11.Nc4 Bb4 (11...0–0 12.Qb3 Nf7 13.Nf3=) 12.Kf1= Nd7 (12...Qd7 13.Qb3 Be7 14.Re1=) 13.Qb3+= Be7 14.Re1 Nb6 15.Ba3 (15.Nb6 ab6 16.Nf3 Nf5+=) 15...Nf5 (15...Nc4 16.Qc4 (16.Re7?? Qe7 17.Be7 Nd2 18.Ke2 Nb3 19.Bf6 gf6 20.ab3 0–0–0–+) 16...Nf5 17.Nf3+=) 16.g4 (16.Nb6 ab6 17.Nf3 Qd7=) 16...Nc4= 17.Qc4 Nd6 (17...Kf8 18.Bc5 Nd6 19.Qd5=) 18.Qe2 (18.Qd5 Qd7=) 18...Qd7 19.Bd6 cd6 (19...Qd6 20.Qe4=) 20.d5 (20.Nh3 g5 21.Kg2 Kd8=) 20...Rc8 21.Nh3 (21.a4 Rc5 22.Qe4 a6 23.ba6 ba6=) 21...g5 (21...Rc5 22.Nf4 Rb5 23.Rc1=) 22.Ng1 (22.Qb2 Rf8 23.Re6 Rc5+=) 22...Rc5+= 23.Qe4 f5 (23...h5 24.b6 hg4 25.ba7+=) 24.gf5= Rf8 (24...Rb5?? 25.f6 Rb2 26.Qe7 (26.fe7?! Ra2 27.Qf3 h5+–) 26...Qe7 27.Re7 (27.fe7?! Ra2 28.Ne2 Kd7+–) 27...Kd8 28.Nf3+–; worse is 24...Qb5 25.Kg2 0–0 26.Qe7 Rd5 27.f6+– (27.Qg5 Kh8–/+)) 25.f6 (25.b6 ab6 26.Nf3 Rf5=) 25...Rf6 26.a4 (better is 26.b6!?=) 26...Rf5–/+ 27.Rd1 (27.h4 g4–/+ (27...gh4?! 28.Nf3=)) 27...Re5 28.Qh7 Qg4 Do you see the mate threat? 29.Ra1 Qc4 30.Kg2 Qd5 (30...Rcd5?! 31.h3 Qe4 32.Qe4 Re4 33.Nf3+=) 31.Nf3 g4 32.Qg6 Kd8 33.Qg4 Rg5 34.Qg5 Bg5 35.Rad1 (35.Rhd1 Qg8 36.Kh1 Bf4–+) 35...Qf5 (35...Qg8 36.Rhg1 Bf6 37.Kh1–+) 36.Rd6 Kc7 37.Rd4 Bf6 38.Rhd1 (38.b6 ab6 39.Rhd1 Bd4 40.Rd4–+) 38...Bd4 39.Rd4 Rc3 40.Nd2 (40.Ne1 Qe5 41.Rb4 Qe1 42.b6 ab6 43.Rg4–+) 40...Qh3 41.Kg1 If White now only could play f3... 41...Rc1 42.Nf1 Rf1 0–1. Heller,A – Jansson,B, corr ICCF EU/M/Gr/245 (year?).

7.Nf3 c6 8.a4 (better is 8.de5!? fe5 9.Ne5=) 8...Ne7 9.Qb3 (9.Ba3 0–0+=) 9...0–0 10.c4 cb5 (10...e4 11.Nfd2 c5 12.dc5 Bc5 13.cd5 Bd5 14.Bc4+=) 11.ab5 dc4 (better is 11...e4 12.Nfd2 Nd7+=) 12.Bc4+= Bc4 13.Qc4 Kh8 14.de5 (14.de5 fe5 15.Ne5 Be5 16.Be5+/–) 1–0. Baumann – Harm,Joerg, corr SOK–88–17, 1988.

7.Nf3 e4+= 8.Nfd2 Ne7 9.Qb3 f5 10.c4 Nd7?? (better is 10...dc4 11.Bc4 Bc4 12.Nc4 Nd7=) 11.c5+– Bc5 (11...Nc5 12.dc5 Bc5 13.Bg7+–) 12.dc5 Nc5 13.Qc2 Qd6 (13...Nd3 14.Bd3 ed3 15.Qd3+–) 14.Bd4 b6 15.Be2 (15.Bg7!? Rg8 16.Bd4 Nd3 17.Bd3 ed3 18.Qd3 Rg2+–) 15...0–0 Black intends f4 16.a4 f4 17.ef4 Qf4 18.0–0 (18.Bc5 bc5 19.Qc5 Qf6+–) 18...Nf5 19.Bc5 bc5 20.Qc5 Rf6 (20...a6 21.Rc1+–) 1–0. Wolfertz,Manfred – De Visser,Arnold W, corr SOK–87–07, 1989.

7.de5 fe5

8.c4 Nf6 9.cd5 Nd5 10.Be5 0–0 11.Bd6 Qd6 12.Nf3 Nd7 13.Be2 N7f6 14.0–0 Rfd8 15.Bc4 a5 16.ba6 ba6 17.Nbd2 Rab8 18.Qc1 Bf5 (18...Nb4!?+/–) 19.Nd4+– Bg6 20.Bd5 Nd5 21.Nc6 Bd3 22.Re1 Qf6 23.Nb8 Rb8 24.Nb3 Nc3 (24...Rb4 25.Qd2 Qg6 26.Nc5+–) 25.Nc5 Rd8 26.Nd3 Rd3 27.Qc2 Rd6 (27...Qd8 28.Rac1 Qd5 29.e4 Ne4 30.Qa4+–) 28.Rac1 Rc6 29.e4 (29.e4 Qe6 30.e5+–) 1–0. grasul2009 (2425) – marekt (2155), gameknot.com, 2014.

8.Nf3 Nf6

9.c4 Nbd7 10.Ng5 Bg8 11.cd5 Bb4 12.Nc3 (12.Nd2 Bd5 13.Be2 c6=) 12...Bd5 (12...Nd5!? 13.Nge4 N7f6+=) 13.Qc2 (13.e4 Bg8 14.Qa4 Qe7+=) 13...h6 14.0–0–0 (14.Qg6 Kf8 15.Nf3+=) 14...Bc3 (better is 14...Bg8 15.Qg6 Kf8=) 15.Qg6+– Kf8 16.Ba3 Nc5 17.Bc5 Kg8 ½–½. Beland,Stephane – Hermans,Marcel (1950), IECC, 1999.

9.Be2 0–0 10.0–0 a6 A) 11.ba6 Na6 12.c4 dc4 13.Ne5 Be5 14.Be5=; B) 11.Ng5 B1) 11...Qd7 12.c4 ab5 13.Ne6 Qe6 14.cd5=; B2) 11...Qe8 12.Ne6 Qe6 13.c4 ab5 14.cd5=; B3) 11...Qc8 12.Ne6 Qe6 13.c4 ab5 14.cd5=; B4) 11...Qe7 12.c4 ab5 13.Ne6 Qe6 14.cd5=.

9.Be2 0–0 10.0–0 c6 11.Ng5 A) 11...Bf5 12.c4=+ Nbd7 13.Nc3 Nb6 14.cd5=; B) 11...Qe8 12.c4 Nbd7 13.Nc3 Rc8 14.Rb1=; C) 11...Qd7 12.Ne6 Qe6 13.c4 a6 14.Nc3=; D) 11...Qe7 12.c4 Nbd7 13.Nc3 Rac8 14.Ne6=+.

9.Be2 0–0 10.0–0 Nbd7 11.c4 c6 12.Nc3 Qe7 13.cd5 (13.bc6 bc6 14.cd5 cd5=) 13...cd5 14.Ng5 Rad8 (14...Nb6 15.Ne6 Qe6 16.Rc1+=) 15.Ne6 (15.Rc1 Nc5=) 15...Qe6 16.Rc1 e4 (16...Nc5 17.Na4 b6 18.a3=) 17.Na4 (17.Nb1 Rc8=) 17...b6 (17...Rc8 18.Rc8 Rc8 19.Bd4+=) 18.Rc2 (18.Bd4 Rc8=) 18...Ne5 19.Be5 (19.Qd4 Rc8 20.Rfc1 Rc2 21.Rc2 Neg4=) 19...Qe5+= The mate threat is Qxh2 20.g3 Rc8 21.Rc8 Rc8 (21...Rc8 22.Qd2 Bc5+=). Wu Ming Quien – Stadler, Hyeres, 1980.

9.Be2 0–0 10.0–0 h6 11.c4= Nbd7 (11...dc4 12.Nbd2 (12.Be5 a6 13.Qa4 Be5 14.Ne5=; 12.Ne5 Be5 13.Be5 c6 14.Qd8=) 12...a6 13.Bc4 Bc4 14.Nc4=) 12.cd5 (12.c5 Nc5 13.Be5 a6 14.ba6=) 12...Nd5 (12...Bd5 13.Nc3 Be6 14.Qc2=) 13.Nbd2 N5b6 (13...a6 14.ba6 ba6 15.Bc4=; 13...Qe7 14.Ne4=) 14.a4 a5 (14...Nd5 15.Ne4 a6 16.Rc1= (worse is 16.Nd6 cd6 17.Bc4 N7f6=)) 15.ba6 ba6 16.a5 Nd5 17.Nc4 Qf6 18.Rc1 (18.Rb1 Rfb8+=) 18...Rab8 (18...Rfb8 19.Rc2+=) 19.Rc2+/– (19.Nd6?! Rb2 (worse is 19...cd6 20.Ba3+/–) 20.Ne4 Qg6=) 19...Nb4 20.Nd6 Nc2 (20...cd6 21.Rd2 Na2 22.Qa1+/–) 21.Ne4 Qg6 22.Qc2 Bd5 (22...Rb2 23.Qb2 Qe4 24.Qc3+/–) 23.Nfd2 Rb7 (23...Rb2!? 24.Qb2 Be4 25.Ne4 Qe4 26.Ba6 Nc5 27.Qa2 Kh8+–) 24.Ba3 Rfb8 25.Rc1 Qf7 (25...Nf6 26.Ng3 (26.Ba6?! Be4 27.Ne4 Qe4 28.Qe4 Ne4 29.Bb7 Rb7+–) 26...Qc2 27.Rc2+–) 26.Nc5 Nc5 (26...Rf8 27.f3 Nc5 28.Qc5+–) 27.Qc5 (27.Bc5?! Rb2 28.Qd3 Bc6+–) 27...Qe6 (27...Rb5 28.Bb5 Rb5 29.Qc3+–) 28.Ba6! Qa6 29.Qd5 Kh8 30.Qe5 Rd8 (30...Qd3 31.Qc3 (31.Rc7?! Rc7 32.Qc7 Rb1 33.Bc1 Qd2 34.Qc8 Kh7 35.Qf5 Kh8 36.Qf8 Kh7 37.Qf5 Kh8 38.Qf8 Kh7 39.Qf5=) 31...Qc3 32.Rc3+–) 31.Nf3 (31.Bb2 c5 32.Bc3 Rbd7+–) 31...Rb5 32.Qc7 (32.Qe7 Rbd5+–) 32...Qa5 33.Qa5 (33.Qa5 Ra5 34.Bb4+–) 1–0. Daatselaar,Jan Bart van (2230) – Bonatti,Aldo (2020), corr ICCF WSTT/3/06/4, 2006.

9.Be2 c6 10.Nbd2+=.

6.Nd2 Nd7

7.c3 Be7 8.c4 Bb4 9.de5 dc4 10.Rc1=.

7.c3 Be7 8.c4 dc4 9.Bc4 Bc4 10.Nc4 a6 11.Qb3 ed4 12.Bd4 ab5 13.Qb5 b6 (13...Rb8!?+=) 14.Ne2 c5 (14...Nh6!?+/–) 15.Bc3 +–.

7.c3 Be7 8.c4 Nh6 9.cd5 Bd5 10.e4 Bf7 11.Ngf3 0–0 (11...ed4 12.Bd4 0–0 13.Qc2=) 12.de5+= Ne5 13.Ne5 fe5 14.Be5 Bb4 (14...Bc5 15.f4+=) 15.f3 (15.Qc2 Ng4 16.Bg3 Qd4+=) 15...Ng4 16.Bg3? (16.fg4 Re8) 16...Ne3–+ 17.Qc1 Qd4 (17...Nf1?! 18.Rf1 Qd4 19.Rf2–+) 18.Rb1 Ba3!! (18...Ba2?! 19.Qb2 Bb1 20.Qd4 Nc2 21.Kd1 Nd4 22.Bc4 Kh8 23.Nb1–/+) 19.Qc7 (19.Qa3 Deflection from c2 19...Nc2 Theme: Double Attack) 19...Rad8 (19...Nf1?! 20.Rf1 (20.Nf1? Rfc8 21.Qa5 Bb2–+) 20...Qe3 21.Kd1–/+) 20.Be2 Bc5 (worse is 20...Qd2 21.Kf2 Bc4 22.Rhe1–+) 21.Nb3 (21.Rb2 Ng2 22.Kf1 Ne3 23.Ke1 Qb2 24.Qc5 Qd2 25.Kf2 Ng4 26.Kf1–+) 21...Bb3 22.Qd8 (22.Qc5 Qc5 23.Kf2 Nd1 24.Ke1 Qc3 25.Kf1–+) 22...Rd8 23.ab3 (23.Kf2 Nf5 24.Ke1 Ng3 25.Bc4 Bc4 26.hg3 Qc3) 23...Bb4 0–1. Gerold,Guenter – Ellertsson,Gunnar, corr ICCF EU/M79, 2000.

7.de5 fe5 8.Ngf3 Bd6=.

7.c3 Bd6

8.c4 Bb4 9.cd5 Bd5 10.a3 Ba5 11.Ne2 Ne7 12.Nc3 Bc3 13.Bc3 ed4 14.Bd4 0–0 15.Bd3 Bg2 16.Rg1 c5 17.Rg2 cd4 18.Qg4 g6 19.Qd4 Kh8 20.Be4 Qc7 21.Nb3 Rad8 22.Rc1 Qb8 23.Kf1 Ne5 24.Qb2 Nf5 (24...Nc8 25.Nc5 Nd6 26.Bd5+=) 25.Nc5 Rd6 (25...Nd6 26.Bd5+=) 26.Qb3 (26.Bf5 gf5 27.Qb4 Rfd8+=) 26...b6 27.Nd3 (27.Na6!? Qe8 28.Bf5 gf5 29.Kg1+=) 27...Nh4= 28.Rg3 Rc8 29.Rc2 Nd3 30.Bd3 Rcd8 31.Qa4 g5 32.Be2 R6d7 33.Qb4 Qe5 34.Qc3 Qf5 35.Rc1 h6 36.a4 Rd2 37.Qc4 Qe5 38.Qb4 Qb2 39.Qb2 Rb2 40.Rd1 Rc8 41.e4 Ng6 42.Rgd3 Nf4 43.R3d2 Rb4 44.Rd8 Rd8 45.Rd8 Kg7 46.Bd1 Re4 47.Rd7 Kf8 48.Ra7 Rd4 49.Ke1 Nd3 50.Kf1 Nc5 (50...Rf4 51.f3 Nb2 52.Ke2+=) 51.Bc2= Ke8 52.Rc7 (52.a5 ba5 53.Ra5 Kd7=) 52...Na4 53.Rb7 Nc3 54.Rb6 Ke7 55.Rb7 Kd6 56.Rb6 Ke5 57.Rb8 Nd5 58.b6 Kd6 59.Bb3 Kc6 60.Bd5 Rd5 61.Rh8 Kb6 ½–½. Wantoch_Rekowski,Jacek (2285) – Jina,Jiri (2110), WS/M/065 ICCF, 2006.

8.c4 dc4 9.Bc4 Bc4 10.Nc4 Bb4 11.Nd2 (11.Kf1 Qe7=) 11...a6 (11...Nb6 12.Qg4 Bd2 13.Kd2+=) 12.a4 (12.ba6 Ra6 13.Ne2 ed4 14.Nd4 Ne5=) 12...Ba5 (12...Nb6 13.Qh5 g6 14.Qe2+=) 13.Nh3 Ne7 (13...ab5 14.ab5 Nb6 15.0–0 Bd2 16.Qd2 Ra1 17.Ra1+/–) 14.0–0+= ed4 (14...Bd2 15.Qd2 0–0 16.Qc2+=) 15.Nb3 (15.Bd4 c5 16.bc6 Nc6+=) 15...Bc3= 16.Bc3 dc3 17.Nd4 (17.Nf4 ab5 18.ab5 Nb6 19.Ra8 Qa8+/–) 17...Nc5?? (better is 17...Nb6=) 18.Qh5+– (18.Qh5 Ng6 19.Qc5+–) 1–0. Bivens,William H – Mussio,John A, corr, 1985.

8.c4 c6 9.a4 Qe7 (9...ed4 10.bc6 bc6 11.Bd4=) 10.Qb3 (10.c5 Bc7=) 10...ed4+= 11.Bd4 Nh6 (11...c5 12.Bb2 d4 13.Rd1+=) 12.Be2 (12.bc6 bc6 13.Qb7 0–0=) 12...Nf5 13.Bb2 (13.Ngf3 Ne5+=) 13...0–0 (13...Nh4 14.g3 Ng6 15.Ngf3+=) 14.Ngf3 Ne5 (14...Rac8 15.0–0+=) 15.0–0 (15.cd5 Bd5 16.Qc2 Nf3 17.Bf3 Bf3 18.Nf3 Qe6=) 15...Qf7 (15...dc4 16.Bc4 Nc4 17.Nc4+=) 16.Ne5 (16.cd5 Bd5 17.Qc2 Ne7=) 16...fe5+= 17.e4 (17.Qc2 Rad8+=) 17...Nd4 18.Bd4 ed4 19.ed5 (19.Rad1 Rae8+=) 19...cd5 20.Rad1 Rac8 (20...Rad8 21.cd5 Bd5 22.Bc4 Bc4 23.Nc4=) 21.cd5 Bd5 22.Qd3 Bc5 (22...Qf4 23.g3 Qf7 24.Ne4 (worse is 24.Qd4 Bc5 25.Qf4 Qf4 26.gf4 Rf4–+) 24...Be4 25.Qe4=) 23.Bf3= Rcd8 24.Bd5 Rd5 25.Nb3 Attacks the isolani on d4 25...Bb6 26.Rd2 Rfd8 (26...Rc8 27.a5 Bd8 28.Rfd1=) 27.Rc1 (27.Re1 Rc8=) 27...Bc7 (27...Re5 28.h3=) 28.Rdc2 (28.g3 Be5=) 28...Bf4 29.Re1 (29.Rd1 Be5=) 29...Qg6 30.Qg6 hg6 31.Rc4 Bg5 (31...Be5 32.Rc5 b6 33.Rc4=) 32.Rd1 The pressure on the isolated pawn grows (32.Rc7 d3 33.g3 R8d7=) 32...d3= 33.Rc7 (33.Kf1 Kh7=) 33...b6 34.g3 R8d7 (34...d2 35.f4 (worse is 35.Ra7 Rd3–/+) 35...Bh6 36.Rc2+=) 35.Rd7+= Rd7 36.f4 Be7 37.Kf2 Bc5 (37...g5!?+=) 38.Kf3+– (38.Nc5?! bc5 39.Ke3 c4=) 38...Bb4 39.Ke3 d2 40.Nd2 Ba5 (better is 40...Bc5 41.Ke2 Re7 42.Kd3 Re3 43.Kc4 Ra3+/–) 41.Ke2 (41.h3 Kf7+–) 41...Rd4?? (better is 41...Re7 42.Kd3 Rd7 43.Kc2 Rc7 44.Kb2 Rd7=) 42.Nf3+– Re4 (42...Ra4 43.Rd8 Kf7 44.Rd7 Kf8 45.Ra7+–) 43.Kf1 Ra4 44.Rd8 Kf7 45.Rd7 Kf6?? (better is 45...Ke6 46.Rg7 Bb4+–) 46.Ng5 (46.Ra7?! Re4+–) 46...Kf5 47.Kg2 (47.Ra7?! Kg4 48.Rg7 Ra2 49.Rg6 Rh2 50.Nf7 Kf5+–) 47...Ra2 48.Kh3 (48.Kh3 Bc3 49.Rd5 Kf6 50.Ne4 Ke6 51.Nc3+–) 1–0. Labbe,Regis – Bouillod,Yves, 2002.

8.c4 c6 9.Rc1 Ne7 10.c5 Bc7 11.de5 Be5 12.Bd4 Qa5 13.a4 Bd4 14.ed4 0–0 15.bc6 bc6 16.Bd3 Rfe8 17.Ne2 Bf5 18.Bf5 Nf5 19.0–0 Rab8 20.Nf3 Nf8 21.Qc2 Re4 22.Qd1 Ne6 Pawn d4, live or die! 23.Nc3 Rf4 24.Ne2 Rg4 25.h3 Re4 26.g4 Nh6 27.Nc3 Rf4 28.Re1 Ng5 29.Ng5 fg5 30.Re6 Qc7 31.Qe2 Rbf8 32.Re7 Qc8 33.Qe6 Qe6 34.Re6 Rf2 (better is 34...Rd4 35.Rc6 Rc4=) 35.Rc6+/– R2f3 36.Rh6 (36.Nd5 Rg3 37.Kh2+=) 36...gh6+= 37.Nd5 Kf7 38.Kg2 Rd3 39.Rf1 Kg7 40.Nc7 Rd2 41.Kg1 Rf1 42.Kf1 Kf6 43.d5 Rc2 44.Na6 Ke5 45.Ke1 Rc3 46.d6 Ke6 (46...Rh3 47.d7 Re3 48.Kd2+–) 47.Kd2 Rh3 0–1. Okeefe,Michael (2190) – Thomas,Gerald, VD–2010–0–00003, 2010.

8.c4 c6 9.c5 Bc7=.

8.c4 ed4 9.cd5 Bd5 10.Bd4 Ne7 11.Ngf3 0–0 12.e4 Bf7 13.Bc4 c5 14.Bf7 (14.bc6 Nc6 15.Bf7 Rf7=) 14...Rf7 15.Nc4 (15.Bc3 a6 16.ba6 ba6=) 15...Bc7 (15...Bf4 16.Bc3=) 16.Bc3 Nb6 (16...f5 17.ef5 Nf5 18.0–0=) 17.Nb6+= Qd1 (17...Bb6!? 18.Qd8 Rd8+=) 18.Rd1+/– ab6 19.Rd2 (19.Rd7 Ng6 20.Rd2 Re7+=) 19...Nc8 20.0–0 (20.Re2 Ra3 21.Rc2 Re7+=) 20...Nd6= 21.e5 Ne4 22.Rc2 Nc3 23.Rc3 Ra2 (23...fe5 24.Rc2–/+) 24.ef6 (24.e6 Re7 25.Re1 Rb2+=) 24...gf6 (24...Rf6 25.Re1–/+) 25.Rcc1 (25.Re1 Rd7–/+) 25...Rd7 26.Rfd1 Rd1 27.Rd1 Rb2 28.Kf1 Rb5 29.Rd7 Bf4 30.g3 Rb1 31.Ke2 (31.Kg2 Bc1–/+) 31...Rb2 32.Ke1 Bg5 (32...Bg5 33.Rc7 Ra2–/+) 0–1. Woschkat,Karl_Heinz – Rau,Johann, CiF, 2001.

6.Nd2 e4

7.c3 Bd6 8.c4 Bb4 9.Ne2 =.

7.c3 Be7 8.c4 Bb4 9.Ne2 dc4 (9...Bd2 10.Qd2 dc4+=) 10.Bc3+= Bc3 11.Nc3 f5 12.Bc4 Bc4 13.Nc4 Nf6 14.0–0 0–0 (14...Nbd7 15.f3+=) 15.f3 (15.Qb3 Kh8+/–) 15...Qe7 16.Qb3 Kh8 17.fe4 fe4 (17...fe4 18.Nd2 Nbd7+=). Taulien,Hans_Juergen – Mack,Lienhard, remoteschach.de, 2003.

7.Ne2 Ne7 8.Nf4 Bf7 9.a3 Bd6 10.Qg4 0–0 11.Be2 f5 12.Qg5 h6=+ 13.Qg3 Ng6 14.a4 Nf4 15.ef4 Nd7 16.Nb3 Nf6 17.Nc5 Qc8 18.0–0 b6 19.Na6 Nh5 20.Bh5= Bh5 21.Ba3 Kh7 22.Rfe1 Rf6 23.Qh3 Bf7 24.Bd6 cd6 25.Nb4 Rg6 26.Nc6+= Qe6 27.f3 Be8= 28.Nb4 Rc8 29.Re3 Rc4 30.c3 Rf6 31.Rae1 Qc8?? 32.Nd5+– Rf7 33.Nb4 Bd7 34.Kh1 Rc3= 35.fe4 Rc1 36.e5+= de5 37.Re5 Qc4= 38.Nd3 ½–½. TESTEr – TESTEr, internet, 2008.

7.Ne2 Bg4 8.c3 Ba5 9.f3 ef3 10.gf3 Bd7 11.Rg1 g6 12.Qb3 Ne7 13.e4 Be6 14.Nf4 Bf7 15.ed5 Nd5 16.Nd5 Bd5 (worse is 16...Qd5 17.Bc4 Qd7 18.0–0–0+/–) 17.Bc4 c6 18.Ba3 Qd7 19.0–0–0 Bd8 20.Rde1 Kf7 21.bc6 bc6 22.Bd5 cd5 23.Ne4 Kg7 24.Nc5 Qc8 25.Ne6 Kh6 (25...Kf7 26.Qd5 Qc3 27.Kb1 Qa3 28.Nd8 Kg7 29.Qb7 Nd7 30.Qd7 Kh6 31.Nf7 Kg7 32.Ne5 Kh6 33.Ng4 Kg5 34.Nf6 Kh6 35.Ng4 Kh5 36.Qb5 Kh4+–) 26.Rg3 g5 27.Qb1 Qc3 28.Kd1 1–0. Taulien,Hans_Juergen (2350) – Mack,Lienhard (1675), remoteschach.de, 2003.

5.d4 ed4

6.ed4 Bb4 7.Bc3 Bc3 8.Nc3=.

6.ed4 Bf5 7.c4=.

6.ed4 Nh6 7.Nd2 Bb4 8.c3 Bd6 9.h3 Nd7 10.Bd3 Qe7 11.Ne2= f5 12.Nf3 Nf7 13.a4 Nf6 14.Qc2 Ne4 15.Bc1 g5 16.g3 Rc8 17.Rb1 b6 18.h4 g4 19.Be4 fe4–/+ 20.Ng5 Bf5 21.Nf7 Qf7 22.Be3 c6 23.bc6 Rc6 24.Qa2 a6 25.0–0 0–0 ½–½. NN – NN, 1997.

6.Qd4 a6 7.Ne2 ab5 8.Nf4 Bf7 9.Bb5 c6 10.Be2 Nh6 11.0–0 (11.e4 Qa5 12.Nd2 Bc5=) 11...Bd6 12.Qd1 (12.Nd2 0–0+=) 12...0–0 13.Nd2 Re8 14.g3 b5 (14...Nd7 15.c4 Be5 16.Qb1+=) 15.c3 Qb6 16.Nd3 (16.Nf3 Nd7+=) 16...Ra4 17.Nf4 Rd8 18.Bd3 (18.Qc2 Bf4 19.ef4 Bg6+=) 18...Nd7–/+ 19.Bc2 Ra7 20.Qb1 g6 21.a4 ba4 22.Ba4 Ng4 23.Bc2 Bc5 (23...Rb8!? 24.Ra7 Qa7–/+) 24.Ra7= Qa7 25.Kh1 (25.Nb3!?=) 25...Rb8–/+ 26.Nd3 Nde5 (26...Bd6 27.Qa1 Qc7 28.Ba3–/+) 27.Nc5+= Qc5 0–1. Recasens Sanchez,JA (2120) – Aguiar Garcia,Juan, AEAC W/X COPA/Pr–04, 2008.

6.Qd4 Ne7!? 7.Ne2 c5 8.Qd2 (8.Qc5? Nec6) 8...Ng6 unclear. Balendo – Katayev, 1978.

6.Bd4 Bd6 7.Nf3 Ne7 8.Be2 0–0 9.0–0 Nd7 10.Nbd2 c5 11.bc6 Nc6 12.c4 Nde5 13.cd5 (13.c5 A) 13...Nd4? 14.Nd4 (14.ed4?! Nf3 15.Nf3 Bf4=) 14...Re8 15.cd6+–; B) 13...Nf3 14.Nf3 B1) 14...Nd4? 15.Nd4 (15.ed4?! Bf4=; 15.Qd4?! Be7=) 15...Bh2 16.Kh2+–; B2) 14...Be5=) 13...Bd5+= (13...Nd4 14.de6 (worse is 14.Nd4 Bd5 15.f4 Nf7=) 14...Ne6 15.Qb3+–) 14.Nb3 Rc8 15.Rc1 Ba3 16.Rc2 Be4 17.Rd2 Qe7 (worse is 17...Nd4 18.Rd4 (18.Nfd4?! Qb6=; 18.Nbd4?! Qe7=; worse is 18.ed4 Nc4+=) 18...Bf3 19.Rd8 Rfd8 20.Nd4+/– (20.gf3?! Rd1 21.Rd1 Rc2=)) 18.Be5 Ne5 19.Nbd4 Bb4 20.Qb3 Kh8 21.Rdd1 Rfd8 22.Rc1 Bc5 23.Rfd1 Bd5 24.Qa4 ½–½. Kronenburg,Thorsten – Goebel,Andreas (2050), Frankfurt–ch, 2008.

6.ed4 Bd6

7.Bd3 Qe7=.

7.Bd3 Ne7 8.Nf3 0–0 9.0–0 Re8 10.a4 Ng6 11.g3 c5 12.Re1 c4 13.Bf1 Nd7 14.Nc3 Ndf8 15.Re6 Ne6 16.Nd5 Bg3 17.Nf6 Qf6 18.hg3 Rac8 19.Ra3 Kh8 20.Re3 Nc5 21.Re8 Re8 22.dc5 Qb2 23.Qd7 Rf8 24.Nd4 Ne5 25.Qe7 Ng6 26.Qe4 Qa3 27.Ne6 Qf3 28.Qd4 (28.Qd4 Rf6 29.Bc4+=). Theoryhack – LieutenantColumbo, ChessWorld.net, 2010.

7.Nf3 a6 8.Bd3=.

7.Nf3 Ne7 8.Bd3 0–0 9.0–0 a6 10.a4 ab5 11.ab5 (11.Re1 Bg4 12.ab5 Ra1 13.Ba1 Re8=) 11...Ra1 12.Ba1 Nd7 (12...Re8 13.Bb2=) 13.Nbd2 (13.Re1 Bg4=) 13...Nb6 (13...Re8 14.Re1 Ng6 15.Bg6 hg6 16.Bc3=) 14.Qe2 (14.Nb3 Bf5=) 14...Qd7 15.Re1 Bf7 (15...Bf7 16.h3 Ng6+=; 15...Bf5 16.Bc3=). Grund,Karl – Graczykowski,Wojciech, corr ICCF, 1988.

7.Nf3 Ne7 8.Bd3 a6=.

7.Nf3 Ne7 8.Be2 (8.Bd3 a6=) 8...0–0 (8...a6 9.0–0=) 9.0–0 Ng6 (9...a6 10.a4=) 10.c4 dc4 11.Qc2 Nd7 (11...Re8 12.Bc4 Nf4 13.Bc1=) 12.Re1 (12.Bc4 Bc4 13.Qc4 Kh8=) 12...Nb6+= 13.a4 (13.Nbd2 Bb4+=) 13...Qd7 (13...Bb4!? 14.Bc3 a5+=) 14.a5= Nd5 (14...Bf5 15.Bc4 Nc4 16.Qc4 Qf7 17.Qf7 Kf7 18.Ba3=) 15.Bc4 Ngf4 16.Nc3 Nc3 (16...Rfe8 17.a6 ba6 18.Nd5 (worse is 18.Ra6 Nb4 19.Rd6 Qd6–/+; 18.ba6?! Nc3 19.Qc3 Bc4 20.Qc4 Kh8=) 18...Bd5 19.Re8 Re8 20.Ra6=) 17.Be6+= Ne6 18.Bc3 Rae8 (18...Rfe8 19.Qf5+=) 19.a6 ba6 (19...Qb5 20.Reb1 Qh5 A) 21.Rb7 Ng5 22.h4 Nf3 23.gf3 Qf3 (worse is 23...Qh4 24.Qe4 Qh2 25.Kf1 Qh3 26.Ke2 Re4 27.fe4 Qc3 28.Rab1–+) 24.Qb3 Rf7–+; B) 21.ab7=) 20.ba6 (20.Ra6 Qb5 21.Qa2 Qd7+=) 20...c5 21.dc5 Nc5 22.Bd4 Re1 23.Re1 Rc8 24.Qc4 Qf7 25.Qb5 Kf8 (25...Be7 26.Nh4+=) 26.h3 (26.Be3 Kg8=) 26...Qb3= 27.Qb3 (27.Qe2 Nd3 28.Ra1 Nf4=) 27...Nb3 28.Ba7 The passed pawn on a6 quickly leads to threats 28...Rc6 29.Be3 Ra6 30.Rb1 Ra3 31.g4 Ke7 32.h4 Kf7 (32...g6 33.Kg2=) 33.Kg2 Ke8 (33...g6 34.Rd1 Ke7 35.Rd3=) ½–½. Van Rooijen,Peter – Rizzi,Davide, The Climb MUL/07, 2001.

7.Nf3 Ne7 8.Be2 a6 9.0–0=.

6.Qd4! c5

7.Qd2 Bd6 8.Nf3 Ne7 9.c4 dc4 10.Na3 a6 11.Bc4 Bc4 12.Nc4 Bc7 13.Qd8 Kd8 14.b6. Kreuzer.

7.Qd2 Bd6 8.Nf3 Ne7 9.c4 Qc7 10.cd5 Bd5 11.Nc3 Bf7 12.Ne4 Be5 13.Ne5. Kreuzer.

7.Qd2 Bd6 8.Nf3 Ne7 9.c4 Nd7 10.cd5 Bd5 (10...Nd5 11.e4) 11.Nc3. Kreuzer.

7.Qh4 Nd7 8.Nd2 (8.Be2 Nh6=) 8...Qa5 9.c4 (9.Ngf3 Bd6=) 9...Qb4 (9...Rd8 10.Ngf3+=) 10.Rb1= Bf5 (10...Qa5 11.a3=) 11.a3 Qa4 12.Rc1 Bd6 13.Qh5 g6 14.Qf3 (14.Qd1 Qd1 15.Rd1 dc4+=) 14...Ne7 (14...Ne5 15.Qd5 0–0–0 16.Ne4–+) 15.cd5+= Be5 16.Rc4 (16.Be5!? Ne5 17.Qd1 Qa3 18.e4+=) 16...Qa5= 17.Bc1 Bd6 (17...Nb6 18.Rc5 Bd6 19.Rc4 Nc4 20.Bc4–+) 18.Rh4 (18.Bb2 Be5 19.d6 Bb2 20.de7+=) 18...Ne5+= 19.Qd1 Qc3 (19...Nd5 20.Ra4 Qc3 21.e4–+) 20.e4 Bg4 21.Be2? (21.Rg4 Ng4) 21...Nd3–+ 22.Kf1 Qd4 Do you see the mate threat? (22...Nc1 23.Rg4 Ne2 24.Ne2+= (worse is 24.Ke2 h5 25.Rh4 Qa3=)) 23.Nh3 Bh3 24.Bd3 Qd3 25.Kg1 Bd7 26.a4 c4 (26...a6 27.Bb2 0–0 28.b6–+) 27.Qf1 (27.Qf3 Qc2 28.Ba3 Qd2–+) 27...g5 (27...Rc8 28.Qd3 cd3 29.Bb2–+) 28.Nc4 (28.Rh6 Be5 29.h4–+) 28...Qf1–/+ 29.Kf1 Bc5 (29...Bb4 30.Rh6 Rc8 31.Bg5 fg5 32.d6–+) 30.d6?? (better is 30.Rh6 a6 31.Na5 ab5 32.Nb7–/+) 30...Ng8 (better is 30...gh4!? 31.de7 h3 32.g3–+) 31.Rh5 Bg4 32.Rg5 (32.d7 Kd7 33.Rg5 fg5 34.Ne5 Ke6 35.Ng4 Rd8–+) 32...fg5 33.Bb2 Nf6 (33...Rc8!? 34.Bh8 Bb4 35.f3 Rc4 36.Ke2–+) 34.Bf6 0–0 (34...Rf8 35.e5 Rc8 36.h3–+) 35.e5 Rae8 (35...Rac8 36.f3–/+) 36.h4?! (36.f3 Be6 37.Nd2 Bd6 38.ed6 Rf6 39.Ne4 Bc4 40.Kg1 Re4 41.d7–+) 36...Rf6! (36...Rf6 37.ef6 Be2 38.Kg1 Bc4–+) 0–1. Diener,Rudolf – Wiik,Jon, corr ICCF EU–H–GT–25, 1966.

6.Qd4! Bd6

7.Nf3 a6 8.Nc3=.

7.Nf3 c5 8.Qd1 (8.Qd2 Ne7=) 8...a6 (8...Ne7 9.Be2=) 9.ba6 ba6 10.Be2 (10.Ng5 Qc8=) 10...Qb6 11.Bc3 Nc6 12.0–0 Nge7 13.a4 (13.Na3 Qc7=) 13...0–0+= 14.Nbd2 Rfd8 (14...Ne5 15.a5 Qc6 16.Rb1+=) 15.Rb1 Qc7 Black fights for the Initiative 16.h3 Qd7 (16...Bd7 17.Re1+=) 17.Re1 Ne5 18.Ne5 (18.a5 N7c6=) 18...fe5+= 19.Nf3 (19.a5 d4 20.ed4 cd4+=) 19...e4–/+ (19...Qa4?! 20.Be5 Be5 21.Ne5=) 20.Ng5 (20.Ne5 Be5 21.Be5 Ng6–/+) 20...Bf5 21.g4 (21.Bh5 g6 (21...Qa4?! 22.Bf7 Kf8 23.g4–/+) 22.Be2 Qa4–/+) 21...Bg6–+ 22.h4 (22.f4 ef3 (22...Qa4?! 23.Ne6+=) 23.Bd3 Bg3–/+) 22...h6 (worse is 22...Qa4 23.Ne6 Rd7 24.h5–/+) 23.h5 Be8 (23...Qa4 24.Ne6 Bf7 25.Nd8 Rd8 26.Ra1+/–) 24.Nh3 Bh5! 25.Nf4 (25.gh5 A pinning theme 25...Qh3) 25...Bf7 26.Ba5 (26.Nh5–+) 26...Bc7?? Black intends d4 (better is 26...Rdb8–+) 27.Rb7 Rdc8 28.c4 d4 29.ed4 cd4 30.Nd5? (30.Bf1 g5 31.Re4=) 30...Nd5 31.cd5 d3 (31...d3 32.Rc7 Rc7 33.Bc7 Qc7–+; 31...Qd5 32.Rc7 Qa5 33.Rc8 Rc8 34.Bf1–+) 0–1. Wong,Ray – Diener,Rudolf, corr 3GMM–23, 1996.

7.Nf3 Ne7 8.Nc3=.

6.Qd4! Nd7

7.Nf3 Bc5

8.Qc3 Ne7 9.Nbd2 idea Nb3. Sokolski.

8.Qc3 Qe7

9.Nbd2 Bb4 10.Qc7+/– Nh6 (10...Nc5 11.Qe7 Ne7 12.Nd4+/– Kf7 13.c3 Na4 14.cb4 Nb2+/–; 10...Nb6 11.Qe7 Ne7 12.Nd4 Bg4 13.a3 Bd6 14.h3 Bh5+/–) 11.Bd3 (11.Qb7 0–0 (11...Kf7 12.Bd3 Rhb8 13.Qc7 Bd6 14.Qc3 Rc8+–) 12.Nd4 Bd2 13.Kd2 Ng4+– 14.Qc6 Bf7+–) 11...0–0 (11...Nc5 12.Qe7 Ke7 13.Be2+/– Rhc8 14.c3 Na4+/–) 12.0–0 (12.a3 Bd2 13.Nd2 a6 14.a4 Rfc8+–) 12...b6 (12...Rfb8 13.Bd4 Nf5 14.Bc3 Bd6–+) 13.Nb3 (13.Rfd1 Bd6 (13...Rfc8 14.Qf4 Bd6+/–) 14.Qc3 Rac8+=) 13...Rfc8 (13...Bd6 14.Qc3 Rac8+/–) 14.Qf4 Bd6 15.Qh4 Nf5 16.Qh3 g6 17.g4 Ng7 18.Qg2 (18.Qh4 Qf7+/–) 18...Ne5 19.Ne5 fe5 20.f4 (20.e4 Qf7+/–) 20...e4 21.Be2 Rc2 (21...Bf7 22.Nd4+/–) 22.Bg7 Kg7 23.Nd4 Re2 24.Qe2 Bd7 25.Qb2 (25.Qb2 Kg8 26.Qb3+–) 1–0. Sokolsky,Alexey – Zhuravlev, corr USSR, 1969.

9.Nbd2 Nh6 10.a3 Nb6 11.Qa5 0–0 12.Bd3 Bf5 13.0–0 a6 14.ba6 Bd3=.

9.Nbd2 Nh6 10.Nd4 Bd4 11.Qd4 Nf5 (11...Ne5 12.Be2 Nf5 13.Qf4 Qd6 14.0–0 0–0–0=) 12.Qf4 Qd6 13.Qd6 Nd6 14.Ba3 Nf5=.

9.Nbd2 Nh6 10.Nd4 Nf5 A) 11.Be2 0–0–0 (11...Nd4 12.ed4 Bd6 13.0–0 0–0–0 14.Rae1 Bb4=; 11...Bd6 12.Ne6 Qe6 13.Rd1 Be5 14.Qa3 Nd6=) 12.a3 Nd4 13.ed4 Bg4 14.Qe3 Be2=; B) 11.Ne6 Qe6 12.Bd3 Bd6 13.0–0 Be5 14.Qa3 Nd6=.

9.Nbd2 Nh6 10.Nd4 Bf7 11.a4 (11.Be2 0–0–0 12.a3 Bg6 13.0–0 Rhe8 14.Rad1 Kb8=; 11.Bd3 Ne5 12.Qb3 0–0 13.0–0 Bd6 14.a4 c5+=; 11.a3 Nb6 12.Bd3 Na4 13.Qb3 Nb2 14.Qb2 0–0=) 11...0–0 (11...Nb6 12.Qb3 Rd8 13.Ba3 Nd7 14.Bd3 0–0+=; 11...Ne5 12.Ba3 Ba3 13.Qa3 a6 14.ba6 ba6+=) 12.Ba3 (12.Bd3 Ne5 13.Ba3 Ba3 14.Qa3 Qa3=) 12...b6 (12...a6 13.ba6 ba6 14.Bc5 Nc5 15.Be2=) 13.Be2 (13.a5 Ne5 14.Be2 Bg6+=) 13...Rfe8 14.0–0 (14.a5 Bd4+=) 14...Bd4 (14...a5+=) 15.Qd4 Nf5 16.Be7 Nd4 17.ed4 Re7 18.Bd3 Rc8 (18...Rae8 19.a5+=) 19.Nf3 (19.Rfe1 Be6+=) 19...c5 20.bc6 Rc6 21.Nh4 Nf8 22.Nf5 Rec7 23.Ne3 Ng6 24.g3 Ne7 25.f4 Nc8 26.a5 Nd6 (26...g6 27.f5+=) 27.ab6+/– Rb6 (27...ab6 28.Ra8 Rc8 29.Rfa1+/–) 28.Ra5 Nc4 29.Rd5 Rb8 30.Bc4 Rc4 31.Nc4 Bd5 32.Ne3 Be4 33.Ra1 Rb7 34.f5 Kf8 35.g4 Rb4 (35...Rd7!? 36.c3+/–) 36.d5+– Rb2 (36...Rb7 37.Ra4 Bf3 38.Kf2+–) 37.Ra7 ½–½. Mazur – Rusek, corr, 1973.

9.Nbd2 0–0–0

10.a3 Nb6 11.Qa5 d4 (11...Kb8 12.Bd3 (12.Nd4 Nh6 13.Bd3 Nc4 14.Nc4 dc4 15.Be2=; 12.Rd1 Bg4 13.Be2 Nh6 14.0–0 Nf7 15.Rfe1=; 12.Bd4= Nh6 13.Bc5 Qc5 14.Nd4 Rhe8 15.Bd3=) 12...Nh6 13.Bd4 Bd6 14.0–0 Nf5 15.Bb6+=) 12.ed4+= (12.Nd4? Bd4 13.Bd4 Rd4–+) 12...Bg4 (12...Nc4 13.Nc4 Bc4 14.Kd1+= Bd5 15.Nd2+=) 13.Be2+/– Nd5 (13...Bd6 14.Kf1 (worse is 14.Qa7 Re8 15.0–0 Qe2–/+) 14...Kb8 15.c4+/–) 14.0–0 Bb6 15.Qa4 Nf4 16.Bd1 Qd7 17.c4 +/–. Filipov – Babun, corr, 1965.

10.a3 Kb8 A) 11.Rd1 A1) 11...Nb6 12.Qa5 Nh6 13.Bd3 Nc4 14.Bc4 dc4 15.0–0=; A2) 11...Nh6 12.Be2 (12.Bd3 Bg4 13.0–0 Ne5 14.Be2 Nf5 15.Rfe1=) 12...Nb6 13.Qa5 Ng4 14.h3 Nh6 15.Nd4=; A3) 11...Bd6 12.Nb3 (12.Qa5 Nc5 13.Nd4 Bd7 14.N2f3 Nh6 15.Be2=; 12.Nd4 Nc5 13.Ne6 Qe6 14.Qd4 Ne7 15.c4=) 12...Ne5 13.Be2 Nf3 14.Bf3 Nh6 15.Nd4=; A4) 11...Bf7 12.Bd3 (12.Be2 Nb6 13.Bc1 Bg6 14.0–0 Nh6 15.Rfe1=) 12...Bh5 13.0–0 Ne5 14.Be2 Nh6 15.Qb3=; A5) 11...Bg4 12.Be2 (12.Nb3 Bf3 13.gf3 Ba3 14.Ba3 Qa3 15.Rd5=) 12...Nb6 13.Qa5 Nh6 14.0–0 Nf7 15.Rfe1=; B) 11.Be2 B1) 11...Bd6 12.Nd4 Nc5 13.Qa5 Bd7 14.c4 Qf7 15.cd5+=; B2) 11...Nh6 12.0–0 (12.Rd1 Bd6 13.Nd4 Nf5 14.Ne6 Qe6 15.Nf3=) 12...Nb6 13.Qa5 Nf5 14.Nd4 Nd4 15.Bd4=; B3) 11...Nb6 12.Qa5 (12.Bc1 Bd6 13.0–0 Nh6 14.a4 Bb4 15.Qb2=) 12...Nh6 13.0–0 Nf5 14.Nd4 Nd4 15.Bd4=; C) 11.Nb3 Bd6 12.Nfd4 Nb6 13.Ne6 Qe6 14.Nd4 Qe4 15.a4=; D) 11.Bd3 D1) 11...Nb6 12.Qa5 (12.0–0 Na4 13.Qb3 Nb2 14.Qb2 g6 15.Rfc1=; 12.Nd4 Na4 13.Qb3 Nb2 14.Qb2 g6 15.0–0=) 12...Nh6 13.0–0 Nf5 14.Nd4 Nd4 15.Bd4=; D2) 11...Bd6 12.Qa5 (12.Nd4 Nc5 13.Qa5 Nh6 14.N2f3 Bg4 15.0–0=; 12.0–0 Nc5 13.Nd4 Nh6 14.Ne6 Qe6 15.a4=; 12.Rb1 Nc5 13.Nd4 Bd7 14.0–0 Ne4 15.Be4=) 12...Nc5 13.Nd4 Nh6 14.Ne6 Qe6 15.Nf3=.

10.a3 Bd6 A) 11.Bd3 A1) 11...Nc5 12.Qa5 Kb8 13.Nd4 Nh6 14.Ne6 Qe6 15.Nf3=; A2) 11...Nh6 12.0–0 Nc5 13.a4 Ng4 14.a5 Rde8 15.Ba3+=; A3) 11...Kb8 12.Nd4 (12.0–0 Nh6 13.Nd4 Nc5 14.Ne6 Qe6 15.Qa5=) 12...Nc5 13.Qa5 Bd7 14.0–0 Nh6 15.N2f3=; B) 11.Qa5 B1) 11...Kb8 12.Bd3 Nc5 13.0–0 b6 14.Qc3 Na4 15.Qd4+=; B2) 11...Bc5 12.Bd3 Bb6 13.Qb4 Nc5 14.Bd4 Re8 15.Nb3=.

10.a3 Ne5 A) 11.Be2 A1) 11...Bd6 12.0–0 Kb8 13.Qa5 b6 14.Qc3 Nh6 15.Nd4=; A2) 11...Nh6 12.Rd1 (12.0–0 Bg4 13.Rad1 Rhe8 14.Rfe1 Kb8 15.Qb3=) 12...Bd6 13.Nd4 Bg4 14.Bg4 Neg4 15.Qb3=; A3) 11...Nf3 12.Nf3 Nh6 13.0–0 Nf5 14.Rae1 Rhe8 15.Bd3=; A4) 11...Kb8 12.0–0 (12.Nd4 Bg4 13.Bg4 Ng4 14.Nf5 d4 15.Qb3=) 12...Nh6 13.Nd4 Bg4 14.Bg4 Neg4 15.Rfd1=; B) 11.Nd4 B1) 11...Bd4 12.Qd4 Kb8 13.Qa4 Nh6 14.Bd4 b6 15.Be2=; B2) 11...Bd7 12.Bd3 (12.N2b3 Bd6 13.Bd3 Kb8 14.0–0 Nd3 15.cd3=; 12.Qb3 h5 13.Bd3 h4 14.0–0 h3 15.g3=) 12...Kb8 13.Qb3 Nh6 14.0–0 Bg4 15.h3=; C) 11.Rd1 C1) 11...Nh6 12.Be2 Rhe8 13.Ne5 fe5 14.Qe5 Nf5 15.0–0+=; C2) 11...Kb8 12.Be2 Bd6 13.Nd4 Nh6 14.Ne6 Qe6 15.Nb3=; C3) 11...Bd6 12.Be2 Nf3 13.Nf3 Nh6 14.0–0 Rhe8 15.Rfe1=.

10.a3 Bg4 11.Be2 (11.h3 Bf3 12.Nf3 Nb6 13.0–0–0 Na4 14.Qb3 Nb2 15.Kb2=; 11.Bd3 Nb6 12.Qa5 d4 13.e4 f5 14.0–0 fe4 15.Be4=) A) 11...Kb8 12.Qd3 (12.Nb3 Bd6 13.0–0 Nb6 14.Rfd1 Na4 15.Qd4=; 12.Rc1 Nh6 13.h3 Bf5 14.Nd4 Bg6 15.0–0=; 12.h3 Bh5 13.Rd1 Nb6 14.Bc1 Nh6 15.0–0=; 12.Rd1 Nb6 13.Qa5 f5 14.Be5 Nf6 15.0–0=) 12...Nb6 13.0–0 Nh6 14.Bd4 Bd4 15.Nd4=; B) 11...Nh6 12.Nb3 (12.Rd1 Nb6 13.Bc1 Rhe8 14.0–0 Nf7 15.Rfe1=; 12.h3 Bf5 13.Nb3 Bd6 14.0–0 Nb6 15.Qa5=) 12...Bd6 13.Qa5 Kb8 14.Bd4 Nb6 15.0–0=.

10.a3 Nh6 A) 11.Be2 A1) 11...Nf5 12.Qa5 (12.Rd1 Rhe8 13.Nb3 Bd6 14.Qa5 Kb8 15.0–0=; 12.Nb3 Bd6 13.0–0 Rhe8 14.Rfd1 Ne5 15.Qa5=; 12.0–0 Rhe8 13.Nd4 Nd4 14.ed4 Bd6 15.Rfe1=) 12...Bb6 13.Qb4 Rhe8 14.0–0 Qb4 15.ab4=; A2) 11...Nb6 12.Qa5 Kb8 13.0–0 Nf5 14.Rfe1 Rhe8 15.Nd4=; A3) 11...Rhe8 12.Rd1 (12.0–0 Nf5 13.Nd4 Nd4 14.ed4 Bd6 15.Rfe1=; 12.Nd4 Bd4 13.Qd4 Nb6 14.Bh5 Nf7 15.a4=; 12.Bd3 Nf5 13.0–0 Ne5 14.Qa5 Qd6 15.Rad1=) 12...Nb6 13.Qa5 d4 14.e4 f5 15.e5=; B) 11.Rd1 B1) 11...Kb8 12.Bd3 (12.Be2 Bd6 13.Nd4 Nf5 14.Ne6 Qe6 15.Nf3=) 12...Nb6 13.Qa5 Nc4 14.Bc4 dc4 15.0–0=; B2) 11...Nb6 12.Qa5 d4 13.e4 f5 14.e5 g5 15.Qa7+=; C) 11.Bd3= Nb6 12.Qa5 (12.Bc1 Nf5 13.0–0 d4 14.Nd4 Nd4 15.Ne4=) 12...Nc4 13.Bc4 dc4 14.Bd4 Rhe8 15.0–0=.

10.Qa5 Kb8 11.c3 f5 12.Qa4 (12.Be2 f4 13.ef4 Bg4+= 14.Kf1 Qf6 15.h3 Bh5 16.Re1 Ne7+=) 12...Ngf6 (12...Bd6 13.Be2 Nb6 (13...Nc5 14.Qd4 Nf6 15.0–0 Nce4 16.Rad1 Rhe8+=; 13...Ngf6 14.0–0 Nb6 15.Qc2 Ne4 16.Rfd1 Rhe8=) 14.Qd4 Nf6 15.Rd1 Ne4 16.0–0 Nc4–/+; 12...Nb6 13.Qa5 f4 (13...Re8 14.Nb3 Bd6 15.Be2 f4 16.Bc1 Bg4–/+; 13...Nf6 14.Be2 f4 15.ef4 Bg4 16.Ne5 Be2–/+; 13...Bd6 14.Be2 f4 15.ef4 Bg4 16.Kf1 Bf4–/+) 14.ef4 Bg4 15.Kd1 Rf8 16.Bd3 Rf4–+) 13.Nd4 (13.Be2 Nb6 (13...Ne4 14.0–0 Rhe8 15.Rad1 Nb6 16.Qc2 Nd2+=; 13...Bd6 14.0–0 Nb6 15.Qc2 Ne4 16.Rfd1 Rhe8+=; 13...Rhe8 14.0–0 Nb6 15.Qc2 Ne4 16.c4 f4+=) 14.Qc2 Bd7 15.a4 f4 16.ef4 Bg4+=; 13.Rd1 Nb6 14.Qh4 h6 15.Nd4 Bc8 16.Be2 g5–/+) 13...Nb6 (13...Rhe8 14.N2b3 Ne4 15.Nc5 Ndc5 16.Qc2 f4–/+) 14.Qc2 f4! 15.N2b3 (15.ef4 Bf5 16.Ne4 Bd4–+; 15.Ne6 fe3 16.Nc5 ed2–+) 15...Bd4 16.Nd4 (16.cd4 fe3 17.fe3 Bg4–/+) 16...fe3 17.f3 (17.fe3 Bg4 18.Bc1 Ne4–/+) 17...Nc4 18.Bc1 Rhe8 19.a4 Bd7 20.Be2 (20.Bc4 dc4 21.Qe2 Qc5–/+) 20...Nh5 21.0–0 (21.g3 Nf6–+) 21...Qg5 22.g4 Nf4 23.Bc4 dc4 24.Kh1 (24.Rb1 h5 25.Nc6 Bc6 (25...bc6?! 26.bc6 Ka8 27.cd7 hg4 28.Rb5–+) 26.bc6 b6–+) 24...Bg4! 25.Be3 (25.fg4 Rd4) 25...Re3 26.Nc6 (26.Rf2–+) 26...bc6 27.fg4 Qd5 0–1. Norbeck,Ivar – Johansson,Knut, corr SSKK Sweden, 1986.

9.Nbd2 Nb6

10.a4 Bb4

11.Qd3 Nh6 12.Be2 Nc4 13.Bc3 0–0–0 14.0–0 Bd6 15.Bd4 (15.Nc4 dc4 16.Qe4 f5 17.Qh4 Qh4 18.Nh4=) 15...Kb8 16.a5 Bf5 17.Qb3 Nd2 18.Nd2+=.

11.Qd3 Nh6 12.Be2 Nc4 13.Bc3 Bc3 14.Qc3 Nd2 15.Qd2 (15.Nd2 Bg4 16.Nf3 Nf5 17.a5 Qd7 18.Qc5+=) 15...Nf7+= (15...Nf5 16.a5 Nd6 17.a6 b6 18.Qc3+=) 16.a5 Nd6 17.a6 b6 18.Qc3+=.

11.Qd3 Nh6 12.Be2 Nc4 13.Bc3 Nd2 A) 14.Nd2 Bf5 (14...0–0–0 15.Bb4 Qb4 16.c3 Qb2 17.0–0 Bf5 18.Qd4+=; 14...Bc3 15.Qc3 Bg4 16.Bg4 Ng4 17.Qd4 Qe6 18.0–0+=) 15.Qd4 (15.Bb4 Qb4 16.Qd4 Qd4 17.ed4 0–0–0 18.0–0–0=) 15...Bc3 16.Qc3 Qe5 17.Qe5 fe5 18.Nf3=; B) 14.Bd2 B1) 14...Bd6 15.a5 (15.Nd4 Ng4 16.Ne6 Qe6 17.a5 Ne5 18.Qc3=) 15...Nf7 16.0–0 Ne5 17.Ne5 Be5 18.Rab1+=; B2) 14...Ng4 15.a5 (15.Bb4 Qb4 16.c3 Qd6 17.a5 Ne5 18.Qd2=) 15...Bd6 16.Nd4 Ne5 17.Qc3 Bc8 18.f4+=; B3) 14...Bc5 15.0–0 (15.a5 Nf7 16.Nd4 Ne5 17.Qb3 Nc4 18.Bc3=) 15...Nf7 16.Nd4 Ne5 17.Qc3 Bd7 18.a5+=; B4) 14...0–0–0 15.a5 Bf5 16.Bb4 Qb4 17.Qd2 Qb2 18.Rc1+=; B5) 14...Nf5 15.a5 (15.Bb4 Qb4 16.c3 Qe4 17.Nd4 Nd4 18.Qe4+=; 15.0–0 Bd2 16.Qd2 Nd6 17.a5 0–0 18.a6+=) 15...Bd2 16.Qd2 a6 17.ba6 ba6 18.Rb1+=; B6) 14...Nf7 15.Bb4 (15.a5 Ne5 16.Ne5 fe5 17.a6 b6 18.Bb4=) 15...Qb4 16.c3 Qe7 17.0–0 Ne5 18.Qd4+=; C) 14.Qd2 C1) 14...Bc5 15.a5 (15.0–0 Nf5 16.a5 Nd6 17.Bd4 Ne4 18.Qd3+=) 15...0–0–0 16.Nd4 Kb8 17.0–0 Nf5 18.b6+/–; C2) 14...Bc3 15.Qc3 0–0–0 16.0–0 Bg4 17.a5 d4 18.Nd4+/–; C3) 14...Bd6 15.0–0 0–0 16.a5 a6 17.ba6 ba6 18.Rab1+=.

11.Qd3 Nh6 12.Be2 Nc4 13.Bc3 Rd8 14.Nd4?? (better is 14.0–0= Bf5 15.Bb4 Qb4 16.Qd4 Bc2 17.Rfc1 Bg6 18.Nc4+/–; 14.Bb4 Qb4 15.c3 Qb2 16.0–0 Bf5 17.Qd4 Nd2 18.Nd2=) 14...Ne5–+ 15.Bb4 Nd3 (15...Qb4 16.Qa3 Qa3 17.Ra3+=) 16.Bd3 (16.cd3 Qb4 17.Ne6 Rd7–+) 16...Qb4 17.Ne6 Rd7 18.Rb1 Qd6 (18...Qa5 19.Nc5 Re7 20.Rd1–+) 19.Nd4 0–0 20.c4 c5 (20...Qa3!? 21.Be2–+) 21.bc6 bc6 22.cd5 cd5 (22...Qd5?? 23.Bc4+–) 23.0–0 Rb8 24.Nb5 Qf8 25.Rbc1 (25.Rfc1 Nf7–+) 25...g6 (25...Qb4 26.Nf3–+) 26.Rfd1 (26.Nb3 Rc8–+) 26...Ng4 27.Be2 h5 (27...Ne5 28.Nb3 Rc8 29.Nc3–+) 28.Nf3 (28.Ne4 Qe7 29.Nc5 Rdd8–+) 28...Rc8 29.Rb1 a6 30.Nbd4 Qd6 (30...Rd6!? 31.Rb7–+) 31.a5–/+ Rb8 32.Rb8 Qb8 33.Ba6 Ra7 34.Bf1 (34.Be2!? Ra5 35.h3–/+) 34...Qb2–+ 35.Rd2 Qb1 0–1. Tarakanov,Vladimir Pavlovich – Borwell,Alan Peter, corr ICCF, 1978.

8.Qd1 Nh6

9.Nd4 Bf7

10.Be2 0–0

11.0–0 Qe7

12.Re1 Ne5

13.Nd2 Rfe8

14.a3 A) 14...a6 A1) 15.ba6 ba6 16.e4 Bd4 17.Bd4 Nc6 18.Be3 de4=; A2) 15.N2b3 Bd6 (15...Nc4) 16.Na5 ab5 17.Nb7 c6 18.Nd6 Qd6+=; A3) 15.a4 Bg6 (15...ab5 16.ab5 Ra1 17.Qa1 Bb4 18.Bc3 Bd6=) 16.c4 dc4 17.ba6 ba6 18.Nc4 Nhf7=; B) 14...Bg6 15.c4 dc4 (15...Rad8 16.cd5 Rd5 17.N2b3 Bd4 18.Nd4 Qd7+=) 16.Nc4 Nhf7 17.Qb3 Rad8 18.Red1 Be4=; C) 14...Rac8 C1) 15.N2f3 Bd6 (15...Rcd8 16.Ne5 fe5 17.Nb3 Bb6 18.a4 c5=; 15...Nc4 16.Bc4 dc4 17.Qd2 Rcd8 18.Qc3 Qe4=) 16.Qd2 c5 17.bc6 bc6 18.Reb1 Nf3=; C2) 15.Bd3 Rcd8 (15...c6 16.bc6 bc6 17.e4 Rcd8 18.N2b3 de4=) 16.a4 Bb4 17.a5 c5 18.bc6 bc6+=; C3) 15.a4 c6 (15...Rcd8 16.a5 Bb4 17.c3 Bd6 18.Qa4 Rb8=; 15...Bd6 16.e4 Rcd8 17.ed5 Bd5 18.c4 Bf7=; 15...Bg6 16.a5 Bd6 17.c4 Bf7 18.cd5 Bd5+=; 15...Bb4 16.c3 Bd6 17.e4 c5 18.bc6 Nc6=) 16.a5 Rb8 17.N4b3 Bd6 18.Bd4 c5=; C4) 15.Ra2 c6 (15...Bg6 16.c4 dc4 17.Nc4 c6 18.Qb3 Bf7=; 15...Bd6 16.a4 c5 17.bc6 bc6 18.Ba6 Rc7=) 16.bc6 bc6 17.N2f3 Bd6 18.Nh4 Be6=; C5) 15.N4f3 Nf3 (15...Rcd8 16.Ne5 fe5 17.Nb3 Qd6 18.Nc5 Qc5=; 15...Bd6 16.e4 Rcd8 17.ed5 Bd5 18.c4 Bf7=; 15...Rb8 16.Ne5 fe5 17.c4 c6 18.cd5 Bd5=; 15...Nc4 16.Nc4 dc4 17.Nd4 Bd6 18.Bf3 Rb8+=) 16.Nf3 Rcd8 17.Bd3 Bh5 18.c4 Kh8=; D) 14...Bd6 D1) 15.a4 a5 (15...Rab8 16.a5 c5 17.N4f3 Neg4 18.Nf1 Be6=; 15...c6 16.bc6 bc6 17.Rb1 a6 18.Bc3 c5=; 15...Rad8 16.a5 c5 17.bc6 bc6 18.Rb1 Qc7=; 15...c5 16.bc6 bc6 17.Rb1 a6 18.Bc3 c5=) 16.Rb1 Bg6 17.N4f3 Rad8 18.Ne5 fe5=; D2) 15.Bh5 Rab8 (15...Bh5 16.Qh5 Qf7 17.Qf7 Nhf7 18.e4 de4=) 16.Bf7 Qf7 17.e4 c5 18.N4f3 d4=; D3) 15.f4 Nd7 16.Bd3 Nc5 17.N2b3 Na4 18.Qc1 g6+=; D4) 15.Qc1 c6 (15...c5 16.bc6 bc6 17.c4 Rad8 18.cd5 Bd5=) 16.bc6 bc6 17.c4 Rac8 18.Qc3 c5=; D5) 15.e4 Nc4 (15...Rad8 16.ed5 Bd5 17.c4 Bf7 18.Qa4 c5=) 16.Bc4 dc4 17.Qf3 Be5 18.Qc3 a6=; E) 14...Rab8 E1) 15.Bd3 Bd6 (15...a6 16.N2b3 Nd3 17.cd3 Bd4 18.Nd4 ab5=) 16.N4f3 Nd3 17.cd3 c5 18.Rb1 Qd7+=; E2) 15.N2f3 Bd6 (15...Rbd8 16.Ne5 fe5 17.Nb3 Bd6 18.Na5 Rb8=; 15...Nc4 16.Bc4 dc4 17.Qd2 Rbd8 18.Qc3 Qe4=) 16.Nh4 Qd7 17.Qd2 c5 18.bc6 bc6+=; E3) 15.Bf3 Bd6 16.Be2 c5 17.N4f3 Rbd8 18.Ne5 fe5+=; E4) 15.a4 Bb4 16.a5 c5 17.c3 cd4 18.ed4 Ba5=.

14.a4 A) 14...Rad8 A1) 15.N4b3 Bb4 (15...Bd6 16.Rb1 c5 17.bc6 bc6 18.Nd4 Rb8=) 16.a5 c6 17.Nd4 c5 18.c3 cd4+=; A2) 15.a5 Bb4 16.c3 Bd6 17.Qa4 Rb8 18.b6 ab6=; B) 14...Bb4 B1) 15.a5 c5 (15...a6 16.c3 Bd6 17.e4 Nc4 18.Bc4 dc4=; 15...Rad8 16.c3 Bd6 17.Qa4 Rb8 18.Ba3 Ba3=; 15...Rab8 16.c3 Bd6 17.b6 ab6 18.ab6 c6=; 15...Nc4 16.Bc4 dc4 17.c3 Bd6 18.Qe2 Qe5+=) 16.N4f3 d4 17.Ne5 fe5 18.Qc1 Qd8=; B2) 15.c3 Bd6 (15...Bc5 16.a5 Bd6 17.a6 c5 18.ab7 Qb7=) 16.e4 c5 17.bc6 Nc6 18.Bf3 Qd7=; C) 14...a6= C1) 15.e4 c6 (15...a5 16.ed5 Bd5 17.N4b3 Bd6 18.Bc4 Bf7+=; 15...Red8 16.c3 ab5 17.ab5 Ra1 18.Qa1 Qd6=; 15...Nc4 16.Nc4 dc4 17.Bh5 Rad8 18.c3 ab5=; 15...ab5 16.ab5 Ra1 17.Qa1 Qd6 18.ed5 Neg4+=) 16.ba6 ba6 17.Rb1 Rad8 18.N2b3 de4+=; C2) 15.ba6 ba6 16.Rb1 Bd6 17.N4f3 Nf3 18.Nf3 Qe4=; D) 14...Bg6 15.a5 a6 16.c4 dc4 17.ba6 ba6 18.Nc4 Nhf7=; E) 14...a5 E1) 15.Bd3 Bd6 (15...Bb4 16.Rb1 Nd3 17.cd3 Bg6 18.Qc2 Qc5=; 15...Rad8 16.Bc3 b6 17.N2b3 Bd6 18.f4 Nd3+=; 15...Nd3 16.cd3 Bg6 17.Rc1 Nf7 18.Qb3 Qd6=; 15...Rab8 16.Bc3 Bb4 17.Bb4 Qb4 18.N2f3 Bh5=) 16.Rb1 c6 17.bc6 bc6 18.Be2 Qc7=; E2) 15.Bc3 c6 (15...b6 16.Bd3 Bd6 17.Rc1 Ba3 18.Rb1 Bb4=; 15...Bg6 16.N2b3 Bb4 17.Qd2 b6 18.Bb4 Qb4+=; 15...Bb6 16.N2b3 Nc4 17.Bd3 Qe5 18.Qf3 Qg5=; 15...Bb4 16.Bb4 Qb4 17.c3 Qe7 18.b6 cb6=; 15...Bd6 16.N4b3 b6 17.Bd3 Be6 18.Nd4 Bg4=; 15...Ba3 16.N2f3 Bd6 17.Nh4 Bb4 18.Bb4 Qb4=) 16.N2b3 Bb4 17.Bd2 Bd2 18.Qd2 c5=; E3) 15.Nb1 Nc4 (15...c6 16.Ba3 Ba3 17.Na3 Qb4 18.Qc1 Rac8=; 15...Bb4 16.c3 Bd6 17.Ba3 c5 18.bc6 bc6=; 15...Rad8 16.Bc3 b6 17.Bd3 Be6 18.Ne6 Qe6=; 15...b6 16.Nc3 Rad8 17.Rb1 Bb4 18.Bd3 Qc5=; 15...Bd6 16.Ba3 c5 17.bc6 bc6 18.Bd6 Qd6=; 15...Be6 16.Qd2 Bb4 17.Bc3 Bg4 18.Bb4 ab4=) 16.Bc3 Bd6 17.Bc4 dc4 18.Nd2 Qe5=; E4) 15.ba6 ba6 16.Rb1 Bd6 17.N4f3 Nf3 18.Nf3 Qe4=; F) 14...c6 F1) 15.Rb1 Bg6 (15...Bb4 16.bc6 bc6 17.c3 Bc5 18.f4 Bg6=; 15...Rab8 16.Kh1 Bb6 17.bc6 bc6 18.N2b3 Qd6=; 15...Rad8 16.Kh1 Qd7 17.bc6 bc6 18.Bc3 Rb8=; 15...Bd6 16.bc6 bc6 17.e4 Qc7 18.ed5 Bd5=; 15...Qc7 16.Bc3 Bg6 17.bc6 bc6 18.N2b3 Bd6+=; 15...a6 16.bc6 bc6 17.Bc3 Bd6 18.a5 c5=; 15...Bb6 16.bc6 bc6 17.N2b3 Bc7 18.f4 Ng6=) 16.a5 Bb4 17.bc6 bc6 18.f4 Nd7=; F2) 15.bc6 bc6 16.Rb1 Rab8 17.N2f3 Qc7 18.Qd2 Bd6=; F3) 15.a5 Rab8 (15...a6 16.bc6 bc6 17.e4 Qb7 18.Rb1 Qc7=) 16.N4b3 Bd6 17.Bd4 c5 18.Bc3 Rbd8=; F4) 15.N2f3 Bd6 (15...Bb4 16.c3 Bd6 17.bc6 bc6 18.Ne5 Qe5=) 16.bc6 bc6 17.Rb1 Qc7 18.Qd2 Rab8+=; F5) 15.Nf1 a6 (15...Bb4 16.c3 Bd6 17.bc6 bc6 18.Ng3 Rab8=; 15...Rad8 16.bc6 bc6 17.f4 Rb8 18.Bc3 Bd4=; 15...Rac8 16.a5 Bb4 17.c3 Bd6 18.Ng3 Bg6=; 15...Rab8 16.Ng3 Bg6 17.Qd2 Bd6 18.Red1 Red8=; 15...Bg6 16.bc6 Nc6 17.Nd2 Rac8 18.c4 Bf7=; 15...Be6 16.a5 a6 17.bc6 bc6 18.Nd2 Bb4=) 16.bc6 bc6 17.Ng3 Qd7 18.Rb1 Bd6=; F6) 15.Bf1 Bg6 (15...Rac8 16.a5 Bg6 17.a6 ba6 18.Ra6 Qb7=; 15...Rab8 16.a5 Bd6 17.a6 c5 18.N4f3 Nhg4=; 15...Rad8 16.a5 Rb8 17.Bc3 cb5 18.Bb5 Rec8=) 16.bc6 bc6 17.N2b3 Bb4 18.c3 Bd6=; F7) 15.Kh1 a6 (15...Bg6 16.Rb1 Nf5 17.a5 Bb4 18.a6 c5=; 15...Rac8 16.a5 Be6 17.bc6 Bd4 18.ed4 Nc6=; 15...Be6 16.Ne6 Qe6 17.Bd4 Bb4 18.e4 Neg4=) 16.bc6 bc6 17.Rb1 Qc7 18.e4 Rad8=; G) 14...Bd6 G1) 15.Rb1 a6 (15...Bb4 16.c3 Bc5 17.e4 Rad8 18.a5 Bg6=; 15...Bg6 16.a5 Bb4 17.Ra1 Rab8 18.a6 ba6=; 15...Rad8 16.a5 Bg6 17.f4 Nd7 18.Bd3 Bd3=; 15...Rab8 16.e4 Rbd8 17.ed5 Bd5 18.Bh5 Bf7=; 15...a5 16.e4 Rad8 17.ed5 Bd5 18.Bh5 g6=) 16.Bc3 ab5 17.Nb5 b6 18.Nd6 Qd6=; G2) 15.e4 Rad8 (15...Nc4 16.Bc4 dc4 17.Qe2 Qe5 18.g3 f5=) 16.ed5 Bd5 17.c4 Bf7 18.a5 Bc5=; G3) 15.N2f3 c5 (15...Rab8 16.Nh4 Qd7 17.Ba3 c5 18.bc6 bc6=; 15...Nc4 16.Bc4 dc4 17.e4 Rad8 18.a5 a6=; 15...a6 16.Qd2 c6 17.bc6 bc6 18.Ne5 Qe5=) 16.bc6 bc6 17.Rb1 Qc7 18.Nh4 Rab8+=; G4) 15.Rc1 a6 (15...c5 16.bc6 bc6 17.Rb1 a6 18.Bc3 c5=; 15...c6 16.c4 c5 17.N4f3 Rad8 18.cd5 Bd5=; 15...Rad8 16.c4 dc4 17.Nc4 Nc4 18.Bc4 Bc4=; 15...Rab8 16.c4 c5 17.N4f3 Rbd8 18.cd5 Bd5=; 15...Bb4 16.c3 Bd6 17.c4 Rad8 18.Qc2 dc4=) 16.ba6 ba6 17.Rb1 c5 18.N4f3 Neg4=; G5) 15.N4f3 a6 (15...Be6 16.a5 a6 17.e4 Nhf7 18.ba6 ba6+=; 15...c5 16.Ne5 fe5 17.c4 Rad8 18.cd5 Bd5=) 16.e4 ab5 17.ab5 Ra1 18.Ba1 Nf3=; G6) 15.a5 c5 (15...a6 16.Bc3 c6 17.bc6 bc6 18.Rb1 c5=) 16.bc6 bc6 17.f4 Ng6 18.Bd3 Qc7=.

14.Rc1 A) 14...Bb4 A1) 15.a4 Rad8 (15...Nc4 16.Bc4 dc4 17.c3 Bd6 18.Qe2 Qe5=) 16.c3 Bd6 17.c4 dc4 18.Nc4 Nc4=; A2) 15.Rb1 Bg6 16.N4f3 Nf3 17.Bf3 c6 18.Be2 Qc7=; A3) 15.Ra1 Nc4 16.Bc4 dc4 17.a3 Bd6 18.Qf3 Qe5=; A4) 15.Rf1 Rad8 (15...Bg6 16.c3 Bc5 17.Qb3 Rad8 18.c4 Bf7=) 16.c3 Bc5 17.Qb3 Rd7 18.Rfd1 Qd6=; A5) 15.c3 Bd6 (15...Bc5 16.Qa4 Red8 17.Red1 Bg6 18.c4 Bd3=) 16.c4 dc4 17.Nc4 Nc4 18.Bc4 Bc4=; B) 14...Bg6 15.c4 dc4 (15...Rad8 16.cd5 Rd5 17.f4 Bd4 18.Bd4 Nef7+/–) 16.Nc4 Nhf7 17.Qa4 a6 18.ba6 Ra6=; C) 14...Rab8 15.c4 Rbd8 (15...dc4 16.Nc4 Rbd8 17.Qc2 Bg6 18.Qa4 Nd3+=) 16.Qa4 dc4 17.Nc4 Bd5 18.Red1 Nc4=; D) 14...Rad8 D1) 15.a4 Bb4 (15...Bg6 16.c4 Bb4 17.cd5 Nhf7 18.e4 Bd2+/–; 15...Bd6 16.c4 dc4 17.Nc4 Nc4 18.Bc4 Bc4=) 16.c3 Bd6 17.c4 dc4 18.Nc4 Bb4=; D2) 15.Rb1 Bg6 (15...Bb4 16.c3 Bc5 17.Rc1 Bg6 18.c4 Nhf7=; 15...Bd6 16.Bd3 Nd3 17.cd3 Qe5 18.N2f3 Qh5=) 16.Bh5 Qf7 17.Bg6 Qg6 18.Ne2 Bd6=; D3) 15.Bd3 Bb4 16.Ra1 c6 17.bc6 bc6 18.Rb1 Rb8+=; D4) 15.Ra1 Bd6 (15...Bg6 16.c4 Bf7 17.Qc2 c6 18.cd5 Rd5=) 16.e4 Nc4 17.Bc4 dc4 18.N2f3 Qd7+=; D5) 15.N2b3 Nc4 16.Bc4 dc4 17.Nc5 Qc5 18.Qf3 c3=; D6) 15.Bc3 Ba3 (15...Bg6 16.a4 Bd6 17.Rb1 Nf5 18.a5 c5=) 16.Rb1 Bd6 17.a4 Bg6 18.N4f3 c5=; D7) 15.c4 Bb4 (15...Rd7 16.Qa4 dc4 17.Nc4 Bd5 18.Nb3 Nc4+=; 15...dc4 16.Nc4 Bb4 17.Rf1 c5 18.bc6 Nc6=) 16.cd5 Bd5 17.a3 Ba3 18.Ba3 Qa3=; E) 14...a6 15.ba6 ba6 16.c4 Rab8 17.N4b3 dc4 18.Nc4 Bb4=; F) 14...a5 F1) 15.c4 Rad8 (15...a4 16.cd5 Bd5 17.Nc4 c6 18.Qc2 a3=; 15...dc4 16.Nc4 Bb4 17.Rf1 a4 18.Qc2 Bg6=) 16.Qa4 Neg4 17.N2b3 Bb4 18.Red1 dc4–/+; F2) 15.a4 Bd6 (15...Bb4 16.c3 Bd6 17.c4 Rad8 18.cd5 Bd5=) 16.Bc3 c5 17.bc6 bc6 18.f4 Nd7=; F3) 15.ba6 ba6 16.c4 Rab8 17.N4b3 dc4 18.Nc4 Bb4=; G) 14...Bd6 G1) 15.a4 c5 16.bc6 bc6 17.Rb1 Qc7 18.h3 Rab8+=; G2) 15.Rb1 Bg6 16.f4 Nd7 17.Bd3 Bd3 18.cd3 a6=; G3) 15.c4 dc4 (15...a6 16.cd5 Bd5 17.ba6 ba6 18.f4 Nef7=; 15...c5 16.bc6 bc6 17.cd5 Bd5 18.e4 Ba2=; 15...Rad8 16.Qa4 dc4 17.Nc4 Nc4 18.Bc4 Qe5=; 15...Red8 16.Qc2 dc4 17.Nc4 Nc4 18.Bc4 Bc4=) 16.Nc4 Nc4 17.Bc4 Bc4 18.Rc4 Qe5=; H) 14...c6 H1) 15.bc6 bc6 16.N2f3 Bd6 17.Rb1 Qc7 18.Qd2 Bg6=; H2) 15.c4 Rad8 (15...Rac8 16.Qa4 dc4 17.bc6 Nd3 18.Bd3 cd3=; 15...Bb4 16.cd5 Bd5 17.a3 Ba3 18.Ba3 Qa3=; 15...dc4 16.bc6 Rac8 17.Nc4 Nc6 18.Nc6 Rc6=; 15...a6 16.bc6 bc6 17.cd5 Bd5 18.Qc2 Bb4+=; 15...Red8 16.Qa4 Bb4 17.Red1 Bd2 18.Rd2 c5=) 16.Qa4 Bb4 17.Red1 c5 18.Nc2 Bd2=; H3) 15.Kh1 Rac8 16.c4 Bb4 17.bc6 bc6 18.Bc3 Bc3=; H4) 15.N2f3 Bb4 16.Rf1 c5 17.Ne5 fe5 18.Nf3 d4+=; H5) 15.Rb1 Bd6 (15...Rab8 16.Kh1 Be6 17.Ne6 Qe6 18.Bd4 Bb6=; 15...Bb4 16.bc6 bc6 17.f4 Nd7 18.Bd3 Bh5=) 16.bc6 bc6 17.e4 Qc7 18.ed5 Bd5=; I) 14...Bb6 15.c4 a6 (15...dc4 16.Nc4 Nc4 17.Bc4 Bc4 18.Rc4 Nf7+=; 15...Rad8 16.Qa4 Bc5 17.N4b3 dc4 18.Nc4 Bb4+=) 16.ba6 ba6 17.Qa4 Red8 18.cd5 Bd5+=; J) 14...Rac8 J1) 15.Bd3 Bb4 16.Ra1 c5 17.bc6 bc6 18.Rb1 Nd3+=; J2) 15.a4 Bd6 (15...Bg6 16.c4 Rcd8 17.cd5 Bb4 18.f4 Neg4+=; 15...Bb4 16.c3 Bd6 17.c4 c5 18.bc6 dc4=; 15...Rcd8 16.c4 dc4 17.Nc4 Bb4 18.Rf1 c5=) 16.a5 c5 17.bc6 bc6 18.Rb1 Bb4=.

14.c4 dc4+= 15.N2f3 (15.Qc2 Bb4+= (15...Nd3 16.Bd3 cd3 17.Qd3 Rad8 18.Qc2 Ng4=) 16.Bc3 Bd6 17.Bb2 Nd3 18.Bd3 cd3+=) 15...Nhg4 (better is 15...Bb4 16.Rf1 a6–/+ 17.ba6 Ra6 18.Qc2 c5–/+) 16.Rc1?? (better is 16.Nf5 Qe6 (16...Qd7 17.N3d4= Nh6 18.Nh6 gh6=) 17.Qc2 Bb4 18.N3d4 Qb6=) 16...Nf2–+ 17.Qd2 (17.Kf2 Ng4 18.Kf1 Qe3 19.Rc4 Qf2) 17...Ned3 0–1. Sternik,Ryszard – Kryszek,B, corr Poland, 1985.

7.Nf3 Ne7

8.Qd2 Nb6 A) 9.Nd4 Qd7 (9...Qd6 10.Ba3 Qd7 11.Bd3 Nf5 12.Bf8 Rf8 13.0–0=; 9...Bg4 10.Bd3 Ng6 11.h3 Bd7 12.Ba3 Ba3 13.Na3=) 10.Ne6 (10.Bd3 Nf5 11.0–0 Nd4 12.Bd4 Nc4 13.Bc4=; 10.Be2 Nf5 11.Ne6 Qe6 12.0–0 Bd6 13.Rd1=; 10.Nc3 Nf5 11.Nf5 Bf5 12.a4 Bb4 13.a5=) 10...Qe6 11.Bd3 Nf5 12.0–0 0–0–0 13.Qa5=; B) 9.a4 B1) 9...a6 10.ba6 ba6 11.Bd3 Nf5 12.Qe2 Qd7 13.Ba6+=; B2) 9...Nc4 10.Bc4 dc4 11.0–0 Qd2 12.Nbd2 0–0–0 13.Nd4+=; B3) 9...Nd7 10.Nd4 Bf7 11.Be2 Nc5 12.0–0 Ne4 13.Qd1+=; B4) 9...c6 10.Nd4 Bd7 11.Be2 c5 12.Nb3 Qc7 13.Qc3+=; B5) 9...Bg4 10.a5 Nd7 11.Be2 Nc5 12.Qd4 Be6 13.0–0=.

8.Qd2 Nc5 A) 9.Be2 A1) 9...Nf5 10.0–0 Bd6 11.Nc3 c6 12.Nd4 Nd4 13.ed4=; A2) 9...Qd6 10.0–0 (10.Nd4 Nf5 11.0–0 Nd4 12.Bd4 Ne4 13.Qd1=) 10...Ne4 11.Qa5 Nf5 12.Nd4 Nd4 13.Bd4=; A3) 9...Qd7 10.Nc3 0–0–0 11.Nd4 Bg4 12.f3 Bh5 13.Ba3=; A4) 9...Ne4 10.Qd3 (10.Qd1 Nf5 11.0–0 Qd7 12.Nd4 Nd4 13.Bd4=) 10...Bf5 11.Qd1 a6 12.ba6 ba6 13.Nbd2=; B) 9.Nd4 B1) 9...Qd7 10.Nc3 Bg4 11.h3 Bh5 12.Nb3 Ne6 13.Bd3=; B2) 9...Bf7 10.Qd1 (10.Bd3 a6 11.a4 Nd3 12.cd3 Qd7 13.0–0=; 10.Nc3 Ne4 11.Ne4 de4 12.Be2 c5 13.Nb3=; 10.a3 Ne4 11.Qd1 a6 12.Nd2 ab5 13.Bb5=; 10.Be2 Ne4 11.Qd1 c5 12.bc6 Qa5 13.c3=) 10...Qd6 11.Be2 0–0–0 12.0–0 Re8 13.c4+=; B3) 9...Qd6 10.Nc3 (10.Be2 Nf5 11.0–0 Nd4 12.Bd4 Ne4 13.Qa5=) 10...Bg4 11.Ba3 Qb6 12.Bd3 h6 13.Bc5+=; B4) 9...Bd7 10.c4 Ne4 11.Qc2 c5 12.bc6 Nc6 13.cd5=; B5) 9...Bg4 10.Nc3 Qd7 11.f3 Bh5 12.Be2 Bg6 13.Rd1=; B6) 9...Bc8 10.c4 Ne4 11.Qc2 c5 12.bc6 Nc6 13.Nc6=.

8.Qd2 Bf5 A) 9.Bd3 A1) 9...Be4 10.Qe2 (10.Qd1 Nc5 11.Nc3 Nd3 12.cd3 Bg6 13.0–0=; 10.Nd4 Nc5 11.0–0 Ng6 12.Rd1 Ne5 13.Qe2+=) 10...Nc5 11.0–0 Qd7 12.Nc3 Qf5 13.Be4+=; A2) 9...Bd3 10.cd3 a6 11.Nc3 Ne5 12.Ne5 fe5 13.ba6=; A3) 9...Nc5 10.Bf5 Nf5 11.0–0 c6 12.Qe2 Qd7 13.Rd1=; B) 9.Nd4 B1) 9...Nc5 10.Nf5 Nf5 11.c4 Na4 12.cd5 Nb2 13.Qb2+=; B2) 9...Be4 10.Nc3 (10.Ne6 Qc8 11.Nc3 Nb6 12.Nf8 Rf8 13.Ne4+=) 10...Nb6 11.a4 Bg6 12.a5 Nc4 13.Bc4+/–; B3) 9...Ne5 10.Be2 (10.Nf5 Nf5 11.Be2 Qd7 12.0–0 0–0–0 13.Bd4=) 10...Bg4 11.f3 Bd7 12.f4 Nc4 13.Bc4=; C) 9.Nc3 C1) 9...Nc5 10.Rd1 (10.Be2 Qd7 11.Nd4 Bg4 12.f3 Bh5 13.0–0+=) 10...c6 11.Be2 Qb6 12.0–0 Ne4 13.Ne4+=; C2) 9...Ne5 10.Be2 (10.Nd4 Bg6 11.f4 Nf7 12.Bd3 Qd7 13.0–0=) 10...Qd6 11.Nd4 Bg4 12.f3 Bh5 13.0–0=; D) 9.Be2 Nc5 10.Nc3 (10.0–0 Ne4 11.Qd1 Qd6 12.Nd4 Bg6 13.c4=) 10...Qd7 11.Nd4 Bg4 12.f3 Bh5 13.0–0+=.

8.Qd2 c5

9.a4 A) 9...Ng6 10.Be2 (10.a5 Nde5 11.Ne5 fe5 12.c4 Be7 13.cd5=; 10.Nc3 Qa5 11.Be2 Bd6 12.0–0 0–0 13.Rfd1=) 10...Bd6 11.a5 Nde5 12.a6 Rb8 13.Nc3=; B) 9...a6 10.Be2 (10.a5 Ng6 11.Be2 Nde5 12.0–0 Nf3 13.Bf3=) 10...ab5 11.Bb5 Nc6 12.c4 Nb6 13.cd5=.

9.Be2+= a6 10.ba6 (10.Na3 ab5 11.Nb5 Nc6 12.0–0 Be7 13.Rfd1=) 10...ba6 11.0–0 Qb6 12.c4 Rd8 13.Na3+=.

9.Be2+= Nb6 10.0–0 (10.Nc3 Nf5 11.0–0 Nd6 12.a4 Ndc4 13.Qc1=) 10...Nf5 11.Nc3 Be7 12.a4 d4 13.ed4+=.

9.Be2+= Qc7 10.0–0 Ne5 11.Rd1 Nf5 12.Be5 fe5 13.Ng5+=.

9.Be2+= Nc8 10.Nc3 Ncb6 11.a4 Ne5 12.Ne5 fe5 13.a5+=.

9.Be2+= Ng6 10.Nc3 (10.0–0 Nde5 11.Nc3 Qd6 12.Rfd1 Rd8 13.Qe1=) 10...Nb6 11.a4 Nc4 12.Bc4 dc4 13.Qe2+=.

9.Be2 Nf5

10.0–0 Nb6 11.Nc3 Nd6 12.a4 Ndc4 13.Qc1=.

10.0–0 Qc7 11.Nc3 Nb6 12.e4 de4 13.Ne4=.

10.a3 Nb6 11.0–0 Nd6 12.a4 Nbc4 13.Qc1=.

10.a3 Nb6 11.0–0 Nd6 12.Qc1 Na4 13.Nc3=.

10.Bd3 Nb6 11.0–0 Nd6 12.a4 Nbc4 13.Qc1=.

10.Bd3 Nb6 11.0–0 Nd6 12.a4 Nbc4 13.Qc3=.

10.Nc3 Nb6

11.0–0 Nd6 12.Qc1 Ndc4 13.Rd1=.

11.0–0 Be7 12.Rfd1 Nd6 13.a4=.

11.a4 d4 12.ed4 cd4 13.Ne4=.

11.a4 Be7

12.0–0 d4 13.ed4+=.

12.a5 Nc4 13.Bc4 dc4 14.Qe2 0–0 15.0–0 Nd6 16.Rfd1 (16.e4 Qd7 17.Rfd1 Qe8+=) 16...Qe8= 17.Rab1 =. Sokolski,Alexey – Rovner, Leningrad, 1937.

12.a5 Nc4 13.Bc4 dc4 14.Qe2 0–0 15.0–0 Nd6 16.Nd2 (16.e4 Qd7 17.Rfd1 Qe8+=) 16...Qe8 17.b6 (17.Qf3 Qd7=) 17...a6 (better is 17...ab6!? 18.ab6 Qc6+=) 18.e4+= Qf7 19.f4 Nb5 20.Nf3 Nd4 21.Qf2 Rfd8 22.f5 Bd7 23.Nd5 Nf3 (23...Bc6 24.Nc7 Rac8 25.Bd4 cd4 26.Nd4+=) 24.Qf3+/– Bd6 (24...Bc6 25.Nc7 Rac8+/–) 25.Bc1 (better is 25.Rfd1!? Qf8 26.Qg4+–) 25...Be5= 26.c3 Bc6 27.Bf4 Bd5 28.Be5 Be4 29.Qe4 Re8 30.Ra4 Re5 31.Qc4 Qc4 (31...Rd8 32.g4=) 32.Rc4= Rd8 33.Rcf4 (33.g4 Kf7=) 33...Kf7 34.g4 Ke7 35.Ra4 (35.Kg2 Rd2 36.R1f2 Rd3+=) 35...Rd3–/+ 36.Rc4 (36.Rc1 Rd2–/+) 36...Kd6 37.Kg2 (37.g5 fg5 38.h4 Rg3 39.Kh2 Ree3 40.hg5 Rh3 41.Kg2 Reg3 42.Kf2 Rg5–+) 37...Re2 (37...Kd5 38.Rcf4 Rc3 39.Rd1 Kc6 40.Rd8–+) 38.Rf2–/+ Rf2 (38...Rf2 39.Kf2 Rh3–/+) 0–1. Klarius,G – Siroky,M, corr ICCF EU/M/GT/197 (year?).

12.a5 Nc4 13.Bc4 dc4 14.Qe2 0–0 15.0–0 Qe8 16.Nd2=.

12.a5 d4 13.ab6+=.

8.Qd2 Nf5

9.Nc3 Bb4 10.Be2 (10.a3 Ba5 11.Be2 Nb6 12.0–0 Nd6 13.Nd4=) 10...Nc5 11.Nd4 Qd6 12.0–0 0–0–0 13.a3=.

9.Nc3 Nb6 10.Bd3 (10.Be2 Qe7 11.0–0 Nd6 12.Ba3 Qf7 13.Bd6=) 10...Qe7 11.Bf5 Bf5 12.a4 Nc4 13.Qd5+=.

9.Nc3 Nc5 10.Rd1 Ne4 11.Ne4 de4 12.Qa5 Nd6 13.Nd4=.

9.Nc3 Nc5 10.Rd1 Ne4 11.Ne4 de4 12.Qa5 Qe7 13.Nd2=.

9.Nc3 Nc5 10.Be2 Qd6 11.Rd1 Ne4 12.Ne4 de4 13.Qc3=.

9.Nc3 Nc5 10.Be2 Bd6 11.0–0 Qd7 12.Nd4 0–0–0 13.Rad1=.

9.Nc3 Ne5 10.0–0–0 Nf3 11.gf3 Ne7 12.Ne2 c6 13.Nd4=.

9.Nc3 Ne5 10.0–0–0 Nf3 11.gf3 Ne7 12.Ne2 Bd7 13.Nc3=.

9.Nc3 Ne5 10.Nd4 Nd4 11.ed4 Ng6 12.Bd3 Bd6 13.0–0=.

9.Nc3 Ne5 10.Be2 Bb4 11.a3 Ba5 12.0–0 Qd6 13.Rfd1=.

9.Nc3 Ne5 10.Be2 Bb4 11.a3 Ba5 12.0–0 Nd6 13.Ne5=.

9.Nc3 Ne5 10.Ne5 fe5 11.e4 de4 12.Ne4 Qd2 13.Nd2=.

9.Bd3 Nc5 10.0–0 a6 11.a4 ab5 12.ab5 Ra1 13.Ba1=.

9.Bd3 Nc5 10.Nc3 Nd3 11.cd3 a6 12.0–0 Bb4 13.ba6=.

9.Bd3 Nc5 10.Nd4 Nd4 11.Bd4 Nd3 12.cd3 a6 13.Qb2+=.

9.Bd3 Nc5 10.Nd4 Nd4 11.Bd4 Nd3 12.Qd3 c5 13.bc6+=.

9.Be2= Nb6 10.0–0 (10.Nd4 Nd4 11.Bd4 Bd6 12.Bh5 Kd7 13.Be2=; 10.Nc3 Qe7 11.0–0 Nd6 12.Ba3 Qf7 13.Bd6=; 10.Bd3 Nd6 11.Nd4 Bg4 12.0–0 Ndc4 13.Qc1=; 10.Bd4 Bd6 11.0–0 0–0 12.Bb6 ab6 13.Rd1=; 10.a3 Qd7 11.Bd4 Nc4 12.Bc4 dc4 13.Nc3=) 10...Nd6 11.Nd4 Qd7 12.Ne6 Qe6 13.Bd4=.

9.Be2= Nc5 10.0–0 Bd6 11.Nc3 c6 12.Nd4 Nd4 13.ed4=.

9.Be2= Nc5 10.Nc3 Qd6 11.Rd1 Ne4 12.Ne4 de4 13.Qc3=.

9.Be2= Bd6 10.0–0 Qe7 11.Nc3 Nb6 12.Rad1 0–0–0 13.Bd3=.

9.Be2= Bd6 10.Nc3 Nb6 11.a4 Nc4 12.Bc4 dc4 13.e4+=.

9.Be2= Qe7 10.0–0 Nc5 11.Nd4 Nd4 12.Bd4 Ne4 13.Qd1=.

9.Be2= Qe7 10.0–0 Nd6 11.Bd4 Nb6 12.Bb6 ab6 13.Nd4=.

9.Be2= Qe7 10.a3 Nb6 11.Nd4 Nd6 12.0–0 Nbc4 13.Qb4=.

9.Be2= Qe7 10.Ba3 Nc5 11.0–0 Qf7 12.Qa5 Bd6 13.Nd4=.

9.Be2= Qe7 10.Nd4 0–0–0 11.0–0 Ne5 12.Qa5 Kb8 13.Rd1=.

9.Be2= Be7 10.0–0 Nc5 11.Rd1 Qd7 12.Nc3 Ne4 13.Ne4+=.

9.Be2= Be7 10.0–0 Nc5 11.Rd1 Ne4 12.Qe1 Bc5 13.Nd4=.

9.Be2= Be7 10.a3 Nb6 11.Nc3 Nd6 12.Nd4 Bc8 13.0–0=.

9.Be2= Be7 10.a4 Nc5 11.0–0 Ne4 12.Qd1 a6 13.ba6=.

9.Be2= Be7 10.Nc3 Nb6 11.Rd1 Qd6 12.0–0 0–0–0 13.Qc1=.

9.Be2= Be7 10.Nd4 Nd4 11.Bd4 a6 12.ba6 ba6 13.0–0=.

6.Bd4 a6

7.Nf3=.

7.Nh3 Bb4 8.c3 Bd6 9.Qh5=.

6.Bd4 c5

7.bc6 Nc6 8.Nf3 Bd6 9.Bd3 Nge7 (9...Qc7 10.0–0=) 10.0–0 (10.Nc3 Bg4 11.Nb5 Nd4 12.ed4 Bb4 13.c3 Ba5+=) 10...0–0 (10...Qc7 11.Nbd2=) 11.Nc3 a6 (11...Bg4 12.h3 Bh5 13.Rb1 Nd4 14.ed4+=) 12.h3 (12.Rb1 b5=) 12...b5 (12...Qc7 13.Ne2=) 13.a4 (13.Re1 Qc7=) 13...b4 (13...Nd4 14.Nd4 (worse is 14.ed4 b4 15.Na2 Qa5+=) 14...Qc8 15.ab5 (worse is 15.Ne6 Qe6 16.Ne2 Qe5=) 15...Qc3 16.Ne6=) 14.Ne2 (14.Na2 Nf5=) 14...Nf5 (14...Ne5 15.Be5 Be5 16.c3=) 15.Bf5 Bf5 16.Bb6 Qd7 (16...Qb6 17.Qd5 A double attack) 17.Qd5 Be6 18.Qd3 Ne5 19.Ne5 Be5 (19...fe5 20.Rad1 Qa4 21.Qd6+/–) 20.Qd7 Bd7 21.Nd4 a5 (21...Rfc8 22.Ra2=) 22.f4 Bd4 23.ed4 The passed pawn on d4 quickly leads to threats 23...Rfe8 24.c4 bc3 25.Rfc1 Reb8 26.Bc5 Rb2 27.Rc3 Re8 28.d5 Ree2 29.Rg3 Rbd2 30.d6 h5 (30...Bc6 31.Bb6 Rd6 32.Ba5=) 31.h4 Bc6 The pressure on g2 grows 32.Rc1 Rg2 (32...Ba4 33.Ra1 Bc6 34.Ra5 Bg2 35.Ra1–/+) 33.Rg2 Rg2 34.Kf1 With the idea Be3 34...Ra2 35.Ba7 (35.Bb6 Ba4 36.Rc5 Rd2=) 35...Ba4 36.Rc5 Bd7 ½–½. pcmvr (1965) – MarcosRamos (1640), internet, 2007.

7.Bb2 Bd6

8.Nc3 Ne7 A) 9.Be2 0–0 10.Nf3 Nd7 11.a4 Qa5 12.0–0 Rad8+=; B) 9.Bd3 0–0 10.Nf3 Nd7 11.0–0 Ne5 12.a4 Qc7+=; C) 9.Qh5 Bf7 10.Qd1 Nd7 11.Nf3 Ne5 12.Be2 Nf3+=; D) 9.Nf3 0–0 10.Be2 Nd7 11.0–0 Qc7 12.h3 Ne5+=; E) 9.a3 0–0 10.Nf3 Nd7 11.Bc4 Ne5 12.Bd5 Nd5=.

8.c4 dc4 A) 9.Nc3 Nh6 10.Qf3 Qd7 11.Ne4 Be7 12.a4 a6+=; B) 9.Qd2 a6 10.Na3 ab5 11.Nb5 Bc7 12.Nf3 Nc6+=; C) 9.Qc2+= Qa5 10.Nd2 Qb5 11.Ngf3 Qc6 12.Ng5 Qd5=.

8.c4 Ne7 9.Nc3 (9.Qh5 Kf8 (9...g6 10.Qh4 0–0 11.cd5 Nd5 12.Bc4 f5=) 10.Nc3 dc4 11.Ne4 Nc8 12.Rd1 Qc7=; 9.Nf3 Nd7 (9...dc4 10.Na3 c3 11.Bc3 Nd5 12.Qb3 Nd7=) 10.cd5 Nd5 11.Bd3 c4 12.Bc4 Bb4+=) 9...dc4 (9...Be5 10.Nf3 Nd7 11.Ne5 Ne5 12.cd5 Nd5=) 10.Nf3 (10.Ne4 Nc8 11.Rc1 Qa5 12.Bc3 Qc7=) 10...Nc8 (10...a6 11.Nd2 Be5 12.Bc4 Bc4=) 11.Nd2 Nb6 12.Nde4 (12.Qh5 Bf7=) 12...Be7 13.Qd8 Kd8 14.a4 N8d7 15.a5 Nc8 16.Rd1 f5 17.Ng3 Nd6 18.Be2 Rg8 19.0–0 g6 20.Rd2 Kc7 21.Bf3 Rge8 22.Rfd1 (22.a6 Rab8 23.ab7 Ne5+=) 22...Ne5= 23.Bd5 Bf7 24.Bf7 (24.e4 Kc8 25.ef5 Nd3 26.Bf7 Nf7=) 24...Nef7 (worse is 24...Ndf7 25.Nd5 Kd6 26.Nb6 Ke6 27.Na8 Ra8 28.Ne2+/–) 25.e4 fe4 26.Nge4 Ne4 27.Rd7 Kc8 28.Ne4 Rd8 29.Rd8 Bd8 30.Rd5 b6 31.a6 Be7 32.Kf1 Kc7 33.Nd2 Rd8 34.Rd8 Kd8 35.Nc4 Nd6 36.Nd6 Bd6 37.Ke2 Kd7 (worse is 37...Bh2 38.g3+/–) 38.Ke3 Ke6 39.Ke4 Bh2 40.f4 Kd7 ½–½. Louro,Eugenio Diogo – Tritt,Maciej, Match Portugal–Poland, 2002.

8.Be2 Qa5 A) 9.Bc3 Qa4 10.Nf3 Ne7 11.Nbd2 Bf5 12.Nb3 a6+=; B) 9.Qd2 Qd2 10.Nd2 a6 11.a4 Ne7 12.Ngf3 ab5=.

8.Nf3 Ne7

9.Nc3 0–0 10.Be2 Nd7 11.a4 Ne5 12.a5 Qc7+=.

9.Nbd2 a6 (9...Qa5 10.Be2 a6 11.a4 Qb4 12.Ba3 Qc3=) 10.ba6 Na6 11.Bb5 Nc6 12.c4 Nc7+=.

9.Bd3 0–0 10.c4 dc4 11.Be4 a6 12.Bb7 Ra7=.

9.Be2 0–0 10.0–0 Nd7 11.a4 Ne5 12.Nbd2 a6+=.

9.Be2 0–0 10.0–0 Nd7 11.c4 Qc7 12.Nbd2 Ne5 13.Ne5 Be5 14.Be5 Qe5 (14...fe5 15.cd5 Nd5 16.Ne4=) 15.cd5 Bd5 16.Nc4 (16.Qc2 Rac8=) 16...Qe6 (16...Qg5 17.g3+=) 17.Qc2 f5 18.Rfe1 Ng6 19.Bd3 (19.Red1 Rad8=) 19...Nh4+= 20.f3 Qg6 (20...Bf3 21.gf3 Nf3 22.Kh1 Ne1 23.Re1+=) 21.Kf1= Rae8 22.Qf2 Qf6 23.Rad1 Ng6 24.Be2 (24.Qc2 a6 25.a4 ab5 26.ab5 b6=) 24...Qe6+= 25.Na5 (25.Rc1 Rd8+=) 25...Kh8 26.a4 Ne5 27.f4 Nc4 The pressure on the backward pawn e3 grows (27...Ng4!? 28.Bg4 fg4–/+) 28.Nc4= Bc4 29.Rc1 Be2 30.Qe2 b6 31.Rc4 Rd8 32.Qc2 (32.e4 Qh6=) 32...h6 (32...Rd2! 33.Qd2 Qc4 34.Kg1 Qa4–/+) 33.e4 Rd2 34.Qc1? (better is 34.Qc3!?+=) 34...fe4–+ 35.Ree4? (35.Rce4!? Qa2 36.R1e2 Re2 37.Re2 Qa4 38.Kg1–+) 35...Qd5 (35...Rf4 36.Kg1 Re4 37.Re4 Rg2 38.Kg2 Qe4 39.Kg3 Qa4 40.Qb2–+) 36.Qc3? (36.Ke1 Rd8 37.Qc3–+) 36...Rf4!! 37.Ke1 (37.Rf4 A pinning theme 37...Qg2 Demolition of pawn structure) 37...Re4 38.Re4 Rd1 39.Ke2 Qe4 40.Kd1 Qa4 (40...Qa4 41.Kc1 Qf4 42.Kb2 Qf1–+) 0–1. Kreuzer,Uwe – Wintzer, Vereinspokal, 1992.

5.d4 Bd6

6.Nd2 c6 7.c4 e4 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.d4 e4 6.Nd2 Be6 7.c4 c6).

6.Nf3 e4 7.Nfd2 (--> 1.b4 e5 2.Bb2 f6 3.b5 d5 4.e3 Be6 5.Nf3 Bd6 6.d4 e4 7.Nfd2).

6.Nd2 Ne7

7.c4 b6 8.Rc1 ed4 A) 9.cd5 Nd5 10.Bd4 0–0 11.Ngf3 a6 12.Qa4 Qe7 13.Be2 a5; B) 9.ed4 0–0 (9...Nd7 10.Ngf3 0–0 11.Be2 a6 12.ba6 Qc8 13.cd5 Bd5; 9...Ng6 10.Ngf3 0–0 11.Be2 a6 12.c5 bc5 13.dc5 Be5; 9...Bb4 10.Ngf3 0–0 11.Be2 dc4 12.0–0 c3 13.Bc3 Bc3) 10.Ngf3 Ng6 11.Be2 Nd7 12.cd5 Bd5 13.0–0 Qe7; C) 9.Bd4 0–0 (9...c5 10.bc6 Nbc6 11.Ngf3 Ba3 12.cd5 Bd5 13.Rb1 0–0) 10.cd5 Bd5 (10...Nd5 11.Ngf3 Nd7 12.Bc4 Nc5 13.0–0 Qe7) 11.Bc4= (11.Ngf3 c5 12.Bc3 Nd7 13.e4 Bf7) 11...Ba3 12.Rb1 c5 13.Bc3 Bb4.

7.c4 b6 8.Rc1 Nd7 9.cd5 Bd5 (9...Nd5 10.e4 Nf4 11.g3 Ng6 12.Ngf3 Qe7 13.Bc4 a6) 10.e4 Bf7 11.d5 (11.Ngf3 0–0 12.Be2 ed4 13.Bd4 Nc5) 11...0–0 12.Ngf3 Nc5 13.Qc2 (13.Be2 a6) 13...Bg6 (13...a6–/+) 14.Ba3? (14.Nh4 Qe8=) 14...Kh8?? (better is 14...Ne4 the advantage is on the side of Black 15.Ne4 Ba3–+) 15.Bc5= Bc5 16.Bd3 Qd7 (16...a6 17.a4+=) 17.0–0 Rfd8 18.a4 Bh5 19.h3 'Controls g4' 19...Ng6 20.Nh2 (20.Qb3 h6=) 20...Nf4+= 21.Nb3 Ba3 22.Rce1 Rac8 23.Re3 Bf7 (23...f5 24.Bc4 (worse is 24.ef5 Nd5 25.Be4 Ne3 26.fe3 Bd1–+) 24...fe4 25.Qe4+= (worse is 25.Re4 Bg6–/+)) 24.Ng4 h5 25.Nh2 Qd6 26.Ra1 Nd3 (26...Bb4 27.Rf1+=) 27.Rd3 Qe7 (27...Bb4 28.Rb1=) 28.Nf3 (28.Na5 ba5 29.Rda3 f5+/–) 28...Bd6 29.Ne1 (29.Nh4 g6+=) 29...Bg6 (29...f5 30.Nd2=) 30.f3 (30.Qe2 Be8+=) 30...f5 31.Rc3 fe4 32.fe4 Qh4 33.Re3 Rf8 34.Nf3 Qf4 35.Qe2 Rf7 36.Rf1 Rcf8 37.Nh2 Qg5 38.Rf7 Rf7 39.Rf3 Rf4 40.Rf4 Qf4 (40...ef4 Worse is 41.Nf3 Qe7 42.e5+=) 41.Nd2 Bc5 42.Kh1 Bb4 43.Nhf3 Bc3 (43...Bh7 44.Qd3+=) 44.Qd3 '=' 44...Bd2 45.Nd2 (45.Qd2? Be4 46.Qc3 Bf3 47.gf3 Qg3 48.Qc7 Qh3 49.Kg1 Qg3 50.Kf1 Qf3 51.Ke1 Qd5 52.Qa7 Qe4 53.Kf2 Qc2 54.Ke1 Qc1 55.Ke2 Qc4 56.Kf2 Qc5 57.Ke2 Kh7–+) 45...h4 46.Qe2 Kh7 47.Nf3 Be4 (47...Bh5 48.Kg1=) 48.Ng5?? (48.Qe4 Qe4 49.Ng5 Kg6 50.Ne4+–) 48...Qg5+= 49.Qe4 Kh6 50.Qc4 Qe7 51.Qc1 (51.Qe4 g6+=) 51...g5 52.Qc6 Kh5 (52...Kg7–/+) 53.Qc2? (better is 53.Kg1+=) 53...e4–+ 54.Kg1 Qe5 (54...Kg6 55.Kh1–+) 55.Qe2 (55.Qc6!? g4 56.hg4 Kg5 57.Qd7–/+) 55...Kg6–+ 56.Qc4 Qf4 (better is 56...Kf6–+) 57.Qf1?? (better is 57.d6 cd6 58.Qe6 Qf6 59.Qe4 Kg7 60.Qb7 Qf7 61.Qc6+=) 57...Qf1–+ 58.Kf1 Kf5 59.Ke2 Kf4 0–1. Nebe,Lutz (1620) – Sefeloge,Michael (1870), Koblenz–ch, 1996.

7.c4 b6 8.cd5 Bd5 9.e4 (9.de5 Be5 10.Be5 fe5 11.e4 Be6 12.Ngf3 Qd6 13.Nc4 Qc5) 9...Be6 (9...Bf7 10.de5 Be5 11.Be5 fe5 12.Ngf3 Ng6 13.Bc4 0–0) 10.Ngf3 Nd7 11.Bc4 Bc4 12.Nc4 ed4 13.Nd4 Nc5.

7.c4 b6 8.de5 A) 8...fe5 A1) 9.cd5 Nd5 10.e4 Nf4 11.g3 Ng6 12.Ngf3 Bb4 13.a3 Bd2; A2) 9.Nh3 Nd7 (9...0–0 10.Ng5 Qd7 11.Qb3 d4 12.Bd3 h6 13.Bh7 Kh8 14.Be4) 10.Ng5 Bg8 11.cd5 Nd5 12.Qh5 g6 13.Qg4 h5; A3) 9.Ngf3 Nd7 10.Ng5 Bg8 11.cd5 Nd5 12.h4 Qe7 13.Bc4 0–0–0; B) 8...Be5 9.Be5 fe5+= 10.cd5 Bd5 11.e4 Be6 12.Ngf3 Qd6 13.Nc4 Qc5.

7.c4 ed4 8.ed4 c6 9.c5=.

6.de5 fe5

7.Be5 Be5 8.Qh5+/– g6 (8...Kd7 9.Qe5 Qf6 10.Nf3 Qe5 11.Ne5+/–; 8...Ke7 9.Qe5 Nf6 10.Bd3 Qd6 11.Qg5+/–) 9.Qe5 Qf6 10.Nf3 Qe5 (10...Nd7 11.Qc3+/–(11.Qd4+/–)) 11.Ne5 Nf6 12.Nd2 (12.Nc3 Nbd7 13.Nd7 Kd7+/–) 12...Bf5 (12...Nbd7 13.Ndf3+/–) 13.Bd3 (13.c4 Nbd7 14.Nd7 Kd7 15.cd5 Nd5+/–) 13...Bd3 (13...a6 14.ba6 Na6 15.Ke2+/–) 14.cd3 Nbd7 15.Nef3 (15.Ndf3 a6 16.Rc1 Ne5 17.Ne5 ab5 18.Rc7 Ra2+/–) 15...Nc5 (15...a6 16.ba6 Ra6 17.Ke2+/–) 16.Ke2 (16.d4 Ne6+/–) 16...0–0–0 (16...Ne6 17.Rhc1+/–) 17.Nb3 (17.Rac1 Nfd7+–) 17...Na4 (17...Ne6 18.Rhc1+/–) 18.Rhc1 Rd6 (18...Rhe8 19.Rc2+–) 19.Rc2 (better is 19.Nbd4+–) 19...Nd7? (better is 19...Re8+–) 20.Ng5 Ne5 (20...Rf6 21.Rac1 c5 22.bc6 bc6 23.Rc6 Rc6 24.Rc6 Kb7 25.Na5 Kb8 26.d4+–) 21.Rac1 (21.f4 Ng4 22.Nf7 Re6 23.Nh8 Ne3+–) 21...Rd7 (21...h6 22.Rc7 Kb8 23.Re7+–) 22.Ne6 h5 (22...Kb8 23.f4 Ng4 24.Rc7 Nb6+–) 23.f4 Nf7 (23...Ng4 24.Rc7 Rc7 25.Rc7 Kb8+–) 24.Rc7 Rc7 25.Rc7 Kb8 26.Rf7 Re8 (26...Nc3 27.Kd2 Nb5 28.Na5+–) 27.Nbc5 Nc3 (27...Nc5 28.Nc5 Rc8 29.Rb7 Ka8 30.d4+–) 28.Kd2 Nb5 29.Rb7 Kc8 30.Rb5 Re7 31.Kc3 Rf7 32.Kd4 Rf5 33.h4 (33.Rb7 a6 34.Rc7 Kb8 35.Nd7 Ka8 36.Nb6 Kb8 37.Kc5 Rf7 38.Rc8 Ka7 39.Ra8 Kb7 40.Nd8 Kc7 41.Rc8) 33...Rf7 34.Kd5 Rf5 35.Kc6 1–0. Reinhart,Kenneth M (2470) – Hanamitsu,Itsurou (1810), corr ICCF WSTT/3/06/3, 2006.

7.Be5 Nf6

8.Bb2 0–0 9.Nf3 Nbd7 (9...a6 10.Nbd2=) 10.Nbd2 (10.Be2 Qe8=) 10...Qe7 (10...Qe8 11.Be2=) 11.Bd3 (11.Be2 Bg4=) 11...Rae8 (11...Nc5 12.0–0=) 12.0–0 Nc5 (12...Bg4 13.Rb1=) 13.Nb3+= Nd3 14.Qd3 (14.cd3 a6 15.ba6 ba6=) 14...Bf7 (14...Ne4 15.Rfb1=) 15.Na5 (15.Rab1 Ne4+=) 15...Rb8 16.Bd4 (16.Rfd1+=) 16...Bc5 (better is 16...Kh8!?=) 17.Nb3+/– Bb6 18.Ne5 (18.Rfd1 Ne4 19.a4 c5 20.bc6 bc6+=) 18...Be6 (18...Nd7 19.Nf7 Qf7 20.a4+/–) 19.Bb2 (19.a4 Ne4+/–) 19...Nd7 (19...Qd6 20.Nf3 Nd7 21.Rad1+/–) 20.Nd7 (20.a4 Ne5 21.Be5 Bf5 22.Qd5 Kh8+/–) 20...Qd7+= 21.a4 (21.Nd4 c5 22.bc6 bc6+/–) 21...Bf5 22.Qe2 c6 23.Bd4 (23.c4 Rbe8+=) 23...Qd6 (23...Bd4 24.Nd4 Rbd8 25.c4+=) 24.Bb6 (24.a5 Bd4 25.Nd4 Qg6+=) 24...ab6 25.Nd4 Bg6 26.Rfd1 (26.f4 Be4+=) 26...c5 27.Nb3 Qe5 (27...Rf5 28.c4+=) 28.Qd2+= Rbd8 29.c3 (29.a5!?+=) 29...Qg5+= 30.f4 (30.a5 Be4 31.f4 Qg6 32.ab6 Bc2 33.Nc5 Bd1 34.Nb7 Bb3 35.Nd8 Rd8+/–) 30...Qf5 (30...Qe7 31.Qf2+=) 31.h3 (31.Nc1!?=) 31...Qe4–/+ 32.Ra3 Rfe8 (32...Qe7 33.Raa1+=) 33.Kf2 (33.a5!? Qe3 34.Qe3 Re3 35.Rc1–/+) 33...Qe7 34.Ra2 (34.Raa1 Rd6 35.Kg1 Qe3 36.Kh2 Qe7–/+) 34...Qh4 (34...Rd6 35.Re1–+) 35.Kg1 Bf7 36.Rb2 Ra8 (36...Rc8 37.a5+=) 37.a5+= c4 (37...Qf6 38.Ra1+=) 38.Nd4= Ra5 (38...ba5 39.Nf3 Qe7 40.Ne5=) 39.Nf3 Qe7 40.Ne5 Be6 41.f5 Bf5 42.Qd5 Be6 43.Qd4 Qc7 (43...Qc5 44.Qc5 bc5 45.b6=) 44.Rb4 (44.e4 Ra3=) 44...Raa8 (44...Ra2 45.e4=) 45.Qf4 (45.Nc4 Qg3+=) 45...Bh3 (45...Rf8!? 46.Qe4 Rac8=) 46.Nc4 (46.Qc4 Qc4 47.Nc4 Bg4+/–) 46...Qf4+= 47.ef4 Bg4 48.Rd2 Ra1 49.Kf2 Rc1 50.Ne5 (50.Nd6 Re7+/–) 50...Be6+= 51.c4 (51.Rd3 Rc2 52.Kg3 h6+=) 51...h5 (51...g5 52.fg5 Rf8 53.Kg3+=) 52.Kg3 (52.Rd6 Rc2 53.Kf3 Bg4 54.Ng4 Rc3 55.Kf2 hg4+=) 52...Rf1 (52...Bf5 53.Kh4 Rh1 54.Kg5+=) 53.Nf3 (53.Rd4 Bc8 54.Ra4 g5+=) 53...Rc1 (53...Bg4 54.Rb3+=) 54.Rd4 Rc8 (54...Rc2 55.Re4+/–) 55.Ne5+/– Kh7 56.Rd6 ½–½. Diener,Rudolf – Savionok,AA, corr ICCF WT–M–742, 2001.

8.Bd6 Qd6 9.Nc3 0–0 10.Nf3 Nbd7 11.Be2+=.

8.Bd6 Qd6 9.Nd2 0–0 10.Ngf3 Nbd7 11.Be2 Ne5 12.0–0 Nfg4 13.Ne5 Ne5 14.f4 (14.a4 a6+=) 14...Nd7 15.Nb3 Rae8 16.Qd4 Bf5 (16...a6 17.ba6 c5 18.Qa4+=) 17.Bd3 (17.c4 Re4 18.Qd5 Qd5 19.cd5 Re3+/–) 17...Be4 (17...a6!?+=) 18.Rad1+/– c5 (18...Nf6!?+/–) 19.bc6+– bc6? (better is 19...Qc6 20.Be4 Re4 21.Qd5 Qd5 22.Rd5 Nf6+–) 20.Be4 Re6 (20...Qe7 21.Qa7 Ra8 22.Qd4 Ra2 23.Bd3+–) 21.c4 Nf6 (21...Qe7 22.Bf3 Nb6 23.cd5 Nd5 24.Bd5 cd5 25.Qd5+–) 22.Bf3 (22.Bf5 Re7+–) 22...Rfe8 (22...Qe7 23.Rfe1 Rd8 24.e4+–) 23.Rfe1 Ne4 (23...R6e7 24.cd5 cd5 25.Bd5 Nd5 26.Qd5 Qd5 27.Rd5 Re3 28.Re3 Re3 29.Rd7+–) 24.cd5 cd5 25.Be4 (25.Qd5!? Qd5 26.Rd5 a6+–) 25...Re4 26.Qd5 (26.Qa7 Rc8+–) 26...Qd5 27.Rd5 Re3 28.Re3 Re3 29.Kf2 (29.Kf2 Re4 30.Kf3+–) 1–0. Melich,Jindrich (2170) – Ryvova,Anna, Praha, 1996.

8.Bd6 Qd6 9.Nd2 0–0 10.Ngf3 Nbd7 11.Be2 Rae8 12.0–0 Ne5 (12...Nc5 13.Nb3+=) 13.Ne5 Qe5 14.Nf3 Qd6 15.Qd4 b6 (15...a6 16.ba6 ba6 17.Qd3+/–) 16.Ng5 (16.Qa4 Qc5+/–) 16...h6 (16...Bf5 17.Qc3+/–) 17.Ne6 Qe6 0–1. pcmvr (2400) – shino (2225), net–chess.com, 2006.

8.Bd6 Qd6 9.Bd3 0–0 10.Nc3 a6 11.Nge2+=.

8.Bd6 Qd6 9.Be2 0–0 10.Nf3 a6 11.Nc3+=.

8.Bd6 Qd6 9.Nf3+= 0–0 10.Nc3 a6 11.Qd4+=.

8.Nf3 0–0 9.Bd6 (9.Bd3 Be5 10.Ne5 Qd6 11.Nf3+=; 9.Nd4 Be5 10.Ne6 Qe7 11.Nf8–/+; 9.Nc3 Be5 10.Ne5 c5 11.Nf3+=; 9.Be2 Be5 10.Ne5 Ne4 11.Bf3+=) 9...Qd6 10.Nc3 a6 11.Qd4+=.

8.Nf3 Be5 9.Ne5 0–0 10.Bd3 Qd6 11.Nf3+=.

8.Nf3 Be5 9.Ne5 Qd6 10.Qd4 0–0 11.Be2 (11.Bd3 c5 12.bc6 Nc6 13.Nc6 bc6=) 11...c5 12.Qb2 (12.bc6 Nc6 13.Nc6 bc6+=) 12...Nbd7 (12...d4 13.ed4 cd4 14.Nf3+=) 13.Nd7 (13.Nf3 Rae8+=) 13...Ne4?? (better is 13...Nd7 14.0–0 Ne5+=) 14.Nf8+– (14.Nf8 Rf8 15.0–0+–) 1–0. Bendig,Frank – Rohde,Friedhelm, corr TT002 BdF, 1997.

8.Nf3 Bg4 9.Bd6 Qd6 10.Nbd2 0–0 11.Bd3 Nbd7 12.0–0 Nc5 13.Qb1 Bf3 14.Nf3 (14.gf3?! Rae8=) 14...Ng4 (14...Nd3 15.cd3 a6 16.Rc1+/–) 15.h3 (15.Qb4 Nf6+/–) 15...Rf3 16.hg4 Rf6 17.Qb4 (17.g5 Re6+=) 17...Raf8= 18.g5 R6f7 19.Qh4 (19.g6 hg6 20.Bg6 Rf6= (worse is 20...Qg6 21.Qc5 c6 22.Rac1+/–)) 19...Nd3 20.cd3 Qg6 21.Rad1 (21.Qd4!? Rf5 22.f4+= (worse is 22.Qa7 Rg5 23.g3 Rg3 24.fg3 Qg3 25.Kh1 Qh3 26.Kg1 Qg3 27.Kh1 Qh3 28.Kg1 Qg3=)) 21...Rf5= 22.f4 (22.Rc1 Rg5 23.Qh3 d4 (23...Qd3 24.Qe6 Kh8 25.Qe7=) 24.ed4 Rh5–/+) 22...Qb6 23.Rf3 g6 (23...Qg6 24.Rc1 R5f7 25.Rc3=) 24.Rh3 (24.a4 R8f7+/–) 24...R5f7 25.f5 (25.a4 Qa5 26.Ra1 Qd2+=) 25...gf5 (25...Re8!? 26.fg6 Qg6+=) 26.g6!+/– Rg7 (26...hg6 27.Qh8) 27.gh7 Kh8 28.Qb4 (28.Rf1 Qg6 29.Rh2 Qh7+–) 28...Rff7 29.Qh4 (better is 29.Qf4+/–) 29...Rh7?? (better is 29...Rf8=) 30.Qd8+– Kg7 31.Rg3 Qg6 32.Rg6 Kg6 33.Qd5 b6 34.Rc1 (34.e4 f4+–) 34...Kg7 (34...Rd7 35.Rc6 Rd6 36.Rd6 cd6 37.Qd6 Kg5 38.e4 fe4 39.de4+–) 35.Qd8 1–0. Kreuzer,Uwe – Allgaier,E, Germany, 1990.

6.de5 Be5

7.Be5 fe5 8.Qh5 g6 9.Qe5 Qf6 10.Qc3 Qc3 (10...a6 11.Nf3+/–) 11.Nc3 Nf6 12.Nf3 0–0 (12...a6 13.Nd4 Ke7 14.Rb1+/–) 13.Ng5 (13.Rd1 Kf7+/–) 13...Bc8 (13...Bf5 14.Bd3+/–) 14.Bd3 (14.Rd1 c6+/–) 14...Kg7 (14...a6 15.ba6 Na6 16.a4+/–) 15.e4 (15.Rb1!?+/–) 15...h6 (15...Re8 16.0–0–0 h6 17.Rhe1+/–) 16.e5+/– hg5? (better is 16...Re8!? 17.Kd2 Re5+=) 17.ef6+– Rf6 18.Nd5 Re6?? (better is 18...Rf7+–) 19.Kd2 Rd6 (19...Nd7 20.Nc7 Nb6+–) 20.Nc7 Bf5 (20...Rd7 21.Na8 b6 22.Rhe1+–) 21.Ne8 Kh6 22.Nd6 Bd3 23.Kd3 (23.cd3 b6+–) 23...Nd7 (23...b6 24.Rhd1+–) 24.Nb7 Ne5 (24...Rb8 25.Nd6+–) 25.Kd4 Nf7 (25...Nd7 26.Rae1+–) 26.c4 (26.Rae1 Rf8+–) 26...Rb8 27.Na5 Rd8 (27...g4 28.Nc6 Rb7 29.Rhe1+–) 28.Kc3 Ne5 (28...Nd6 29.Rhe1+–) 29.Rad1 Rf8 30.f3 (30.Rhe1 Rf5+–) 30...g4 31.Kd4 (31.Rd5 gf3 32.Re5 fg2+–) 31...Rf5 (31...Nd7 32.Nc6 gf3 33.gf3 Rf3 34.Na7+–) 32.fg4 (32.fg4 Ng4 33.Rhf1+–) 1–0. Suess,Stefan – Rheinbold, corr, 1984.

7.Be5 fe5 8.Qh5 g6 9.Qe5 Qf6 10.Nf3 Qe5 11.Ne5 Nd7 12.Nd7 Bd7 (12...Kd7 13.Nc3+/–) 13.Nc3 0–0–0 14.Nd5 c6 (14...Bb5!? 15.Bb5 Rd5+/–) 15.bc6 Bc6 16.Nb4 Ne7 17.Nc6 Nc6 18.Bc4 Rd6 19.Rd1 Rd1 20.Kd1 Rd8 21.Ke2 a6 22.Rd1 Rd1 23.Kd1 b5 24.Bg8 h5 25.f4 1–0. pcmvr (2870) – tbrennan (2160), net–chess.com, 2009.

5.Be2 Ne7

6.a3 A) 6...a6 A1) 7.ba6 Na6 8.Nf3 Ng6 9.0–0 Bd6 10.Nc3 0–0+=; A2) 7.a4 Nf5 8.Nf3 Bd6 9.0–0 0–0 10.d3 ab5+=; A3) 7.Nf3 ab5 8.Bb5 c6 9.Be2 Nf5 10.0–0 Bd6+=; A4) 7.d4 e4 8.ba6 Na6 9.Nd2 Nf5 10.c4 Nh4=; B) 6...Nf5 B1) 7.Nf3 Bd6 8.0–0 a6 9.Nc3 0–0 10.e4 de4+=; B2) 7.Nc3 Nh4 8.Bf1 Bd6 9.Qh5 Ng6 10.Be2 Bf7+=; B3) 7.d4 Bd6 8.de5 fe5 9.Nf3 e4 10.Nd4 Nd4+=.

6.Ba3 A) 6...e4 7.d3 Qd7 (7...Nd7 8.de4 de4 9.Qd4 Bf5 10.Nd2 Ne5=; 7...a6 8.de4 de4 9.Qd8 Kd8 10.ba6 Na6=; 7...d4 8.de4 de3 9.Qd8 Kd8 10.Nf3 Ng6=) 8.Nc3 f5 9.Nh3 d4 10.ed4 Qd4=; B) 6...Nf5 7.Bf8 Rf8 8.Nf3 e4 9.Nd4 Nd4 10.ed4 Qd6+=; C) 6...a6 7.ba6 (7.Nf3 ab5 8.Bb5 Nd7 9.0–0 Ra5 10.Bd7 Qd7+=) 7...Na6 8.Nf3 Nf5 9.Bf8 Rf8 10.d4 Qd6=; D) 6...Kf7 D1) 7.d4 Nf5 (7...Ng6 8.Nf3 a6 9.Bf8 Rf8 10.c4 ab5+=; 7...e4 8.Nd2 a6 9.ba6 Na6 10.c4 dc4=; 7...a6 8.de5 fe5 9.Nf3 Ng6 10.h4 Ba3=; 7...ed4 8.ed4 c6 9.Nf3 cb5 10.0–0 a6+=) 8.Nf3 Ba3 9.Na3 c5 10.bc6 Qa5+=; D2) 7.Nf3 a6 (7...Ng6 8.0–0 a6 9.ba6 Na6 10.d4 Ba3=; 7...Nf5 8.d4 Ba3 9.Na3 Qd6 10.Nb1 Rd8=; 7...c6 8.0–0 cb5 9.Bb5 Nbc6 10.Nc3 Qa5=) 8.ba6 Na6 9.0–0 Nc6 10.Bf8 Rf8+=; E) 6...Nd7 7.Nf3 c5 (7...Nf5 8.Bf8 Nf8 9.d4 Qd6 10.0–0 Ng6=; 7...a6 8.ba6 ba6 9.d4 c5 10.0–0 Nf5=; 7...Ng6 8.Bf8 Rf8 9.0–0 f5 10.a4 Qf6=; 7...Rc8 8.0–0 c5 9.bc6 Nc6 10.Bf8 Nf8=) 8.bc6 Nc6 9.Bf8 Nf8 10.Nc3 Ng6+=; F) 6...g5 F1) 7.d4 Bg7 (7...Ng6 8.Bf8 Rf8 9.Nf3 Nd7 10.0–0 Qe7=; 7...Nd7 8.de5 Ne5 9.Nf3 Qd7 10.0–0 N7g6=) 8.de5 fe5 9.e4 Ng6 10.Bg4 Bf7=; F2) 7.Nc3 Nd7 (7...Bg7 8.h4 gh4 9.Rh4 a6 10.Nf3 ab5=; 7...Ng6 8.Bf8 Rf8 9.d4 e4 10.Bh5 Qd6=; 7...Rg8 8.Bg4 f5 9.Bh5 Ng6 10.Bf8 Rf8=; 7...a6 8.ba6 Na6 9.Rb1 Qc8 10.Bh5 Kd8=) 8.Bh5 Ng6 9.Bf8 Ndf8 10.d4 Qd6=; F3) 7.Bg4 Bf7 (7...f5 8.Bh5 Ng6 9.Bf8 Rf8 10.d4 Nd7=; 7...Nf5 8.Bf8 Rf8 9.Nc3 Qd7 10.Nf3 Nd6=; 7...Bg4 8.Qg4 Qd7 9.Qf3 Qe6 10.e4 de4=; 7...Qd7 8.Be6 Qe6 9.Nc3 Nd7 10.Qh5 Ng6=) 8.d4 a6 9.Be2 ab5 10.de5 fe5+=; F4) 7.h4 gh4 8.Rh4 Nf5 9.Rh1 Ba3 10.Na3 Qe7+=; F5) 7.Nf3 g4 (7...a6 8.d4 g4 9.Nfd2 Qd7 10.Nb3 b6=; 7...Kd7 8.d4 e4 9.Nfd2 Kc8 10.0–0 f5=; 7...Nd7 8.0–0 Nf5 9.Bf8 Rf8 10.d4 Qe7=; 7...Rg8 8.0–0 g4 9.Ne1 a6 10.ba6 Na6=) 8.Nh4 f5 9.h3 Rg8 10.hg4 fg4=; G) 6...Qd7 G1) 7.d4 a6 (7...Ng6 8.Bf8 Rf8 9.Nf3 e4 10.Nfd2 a6=; 7...e4 8.Nd2 a6 9.ba6 Na6 10.Rb1 b6=; 7...Qd8 8.de5 fe5 9.Nf3 Ng6 10.Bf8 Rf8=; 7...Nf5 8.Bf8 Rf8 9.Nf3 Qd6 10.0–0 Nd7=) 8.de5 fe5 9.Nf3 Ng6 10.Bf8 Rf8=; G2) 7.Nc3 Kf7 (7...a6 8.ba6 Na6 9.Nf3 c6 10.0–0 b5=; 7...d4 8.Ne4 Ng6 9.Bf8 Nf8 10.Nc5 Qd5=; 7...Nf5 8.Bf8 Rf8 9.Nf3 Qe7 10.0–0 Nd7=; 7...Ng6 8.Bf8 Rf8 9.Nf3 d4 10.Na4 Qd6=) 8.Nf3 a6 9.ba6 Na6 10.0–0 Ng6+=; G3) 7.Nf3 a6 (7...Bg4 8.Nc3 Bf5 9.0–0 a6 10.ba6 Na6=; 7...Bf5 8.Nc3 a6 9.ba6 Na6 10.Rb1 c6=) 8.ba6 Na6 9.0–0 b5 10.d4 e4=; H) 6...c6 H1) 7.Nc3 a6 8.bc6 Nbc6 9.Rb1 b5 10.Bc5 Nf5+=; H2) 7.bc6 Nbc6 8.Nc3 Qa5 9.Bd6 Rd8 10.Nb5 Rd7–/+; H3) 7.Nf3 Qa5 (7...cb5 8.Bb5 Nbc6 9.0–0 a6 10.Bc6 bc6+=; 7...a6 8.bc6 Nbc6 9.0–0 b5 10.Bc5 Nf5+=) 8.bc6 Nbc6 9.0–0 Rc8 10.Bd6 d4+=.

6.a4 a6 A) 7.d4 Ng6 (7...ed4 8.ed4 Nf5 9.Nh3 Bd6 10.0–0 0–0=; 7...e4 8.Ba3 ab5 9.ab5 Nd7 10.Nd2 Nf5=; 7...Nd7 8.de5 fe5 9.Nf3 Ng6 10.ba6 ba6=; 7...ab5 8.de5 fe5 9.ab5 Ra1 10.Ba1 Ng6=) 8.de5 fe5 9.Nf3 Bb4 10.Nbd2 Qf6+=; B) 7.Ba3 Nf5 (7...Ng6 8.Bf8 Rf8 9.Nf3 ab5 10.Bb5 Kf7+=) 8.Bf8 Kf8 9.Nc3 d4 10.Ne4 Bd5+=; C) 7.Nf3 ab5 (7...Nf5 8.0–0 ab5 9.ab5 Ra1 10.Ba1 Bd6=; 7...Ng6 8.Nc3 ab5 9.ab5 Ra1 10.Qa1 c5=; 7...c5 8.d4 cd4 9.ed4 e4 10.Nfd2 Nf5=) 8.ab5 Ra1 9.Ba1 Ng6 10.0–0 Bd6+=.

6.a4 c5 7.Nf3 e4 8.Nh4 g5 9.Bf6 Rg8 10.Bg4 Bg4+=.

6.a4 Qd6 A) 7.d4 Nf5 (7...e4 8.Ba3 Qd7 9.c4 f5 10.Nd2 a6=; 7...Ng6 8.Nf3 e4 9.Nfd2 a6 10.c4 dc4=; 7...Nd7 8.a5 c6 9.a6 b6 10.Nc3 Rc8=) 8.a5 Nh4 9.Ba3 Qd7 10.Bf1 Ba3+=; B) 7.Ba3 Qd7 8.Nf3 g5 9.0–0 g4 10.Ne1 a6=.

6.a4 Qd7 7.Nf3 Ng6 (7...Nf5 8.0–0 Bd6 9.d4 e4 10.Nfd2 c6=) 8.0–0 Bd6 9.Ba3 c5 10.d4 cd4=.

6.a4 Nd7 7.Nf3 Nf5 (7...Ng6 8.0–0 a6 9.ba6 ba6 10.d4 Bd6=) 8.0–0 Bd6 9.Ba3 0–0 10.Bd6 Nd6=.

6.a4 e4 7.Nc3 Nd7 (7...Nf5 8.d3 Nd6 9.Bh5 g6 10.Bg4 f5=; 7...Nc8 8.Bg4 Bf7 9.d3 Nd6 10.Nh3 Nd7=; 7...Bf5 8.d3 Nd7 9.a5 a6 10.ba6 ba6=; 7...Ng6 8.d3 f5 9.de4 fe4 10.Bg4 Bg8=) 8.d3 Nc5 9.a5 c6 10.a6 ba6=.

6.a4 Nf5 7.Nf3 a6 (7...c5 8.d3 Bd6 9.c4 d4 10.e4 Ne7=; 7...Bb4 8.0–0 0–0 9.d4 e4 10.Nfd2 a6=; 7...Be7 8.0–0 e4 9.Ne1 0–0 10.f3 a6=; 7...Bd6 8.0–0 0–0 9.d3 Qd7 10.c4 dc4=) 8.0–0 Bd6 9.Nc3 e4 10.Ne1 0–0+=.

6.a4 g5 7.d4 Ng6 8.Nf3 Bb4 9.c3 Bd6 10.0–0 a6=.

6.a4 Ng6 7.d3 (7.Nf3 Bb4 (7...c5 8.0–0 Bd6 9.d3 Qc7 10.Nbd2 a6=; 7...a6 8.Nc3 ab5 9.ab5 Ra1 10.Qa1 c5=; 7...Bd6 8.0–0 c5 9.d3 Qc7 10.e4 d4=; 7...Be7 8.0–0 0–0 9.d4 e4 10.Nfd2 f5=) 8.0–0 a6 9.Ba3 Ba3 10.Na3 Qe7=) 7...c5 (7...Nh4 8.Bg4 Nf5 9.Nd2 Bc5 10.e4 de4=; 7...a6 8.Nf3 Qd7 9.d4 e4 10.Nfd2 ab5=; 7...Qd7 8.Nf3 a6 9.d4 e4 10.Nfd2 ab5=; 7...Bd6 8.Nf3 c6 9.0–0 a6 10.c4 ab5=; 7...Nd7 8.Nf3 Bd6 9.0–0 a6 10.c4 ab5=) 8.h4 (8.Nf3 Bd6+= 9.c4 0–0 10.Nc3 dc4=) 8...Bd6+= 9.Nd2 (9.c4 dc4 10.dc4 0–0+=) 9...Nd7 (9...0–0 10.Ngf3 Ne7+=) 10.c4 (10.h5 Ne7+=) 10...Qa5 (10...0–0 11.cd5 Bd5 12.Bf3=) 11.Qc2 (11.cd5 Bd5 12.Bf3 Bf3 13.Ngf3 Rd8=) 11...d4 12.h5 de3 13.fe3 Ne7 14.Bc3 Qc7 15.e4 f5 16.a5 0–0 17.Ngf3 Nf6 18.Ng5 Qd7 19.0–0–0 (19.Bf3 Rab8+=) 19...f4 20.Ndf3 Ng4 21.Rde1 (21.Ne6 Qe6 22.Ng5 Qh6 23.Bg4 Qg5=) 21...h6 22.Ne6 Qe6 23.Qb2 a6 24.b6 Nc6 25.Nh4 Rad8 (25...Nd4 26.Bg4 Qg4 27.Bd4 cd4 28.Nf5=) 26.Ng6 (26.Nf5 Nf6=) 26...Rfe8 (26...Rf7 27.Bg4 Qg4 A) 28.Ne5? Be5 29.Be5 A1) 29...Na5?! 30.Rh3–/+; A2) 29...Ne5?! 30.Qe5 Qg2 31.Rhg1+= (31.Qc5?? Rd3 32.Qb4 Qa2–+); A3) 29...Nb4–+; B) 28.Be5 Be5 29.Ne5 Ne5 30.Qe5 Qg2 31.Rhg1+= (31.Qc5 Rd3 32.Qb4 Qa2–+)) 27.Reg1 (better is 27.g3!? Nf2 28.Rh2 fg3 29.Rg2=) 27...Nf2+= 28.Rf1? (better is 28.Rh2!? Be7 29.Qc2–/+) 28...Nh1–+ 29.Rh1 Nd4 30.Bd4 (30.Bd1 Qf7–+) 30...cd4 (30...ed4?! 31.Rf1–/+) 31.Rh4 Bc5 32.Rg4 Qd6 33.Kd1 Ba3 34.Qa2 (34.Qc2 Qb4 35.Nh4 Rd7–+) 34...Qb4 35.Nh4 Qa4 (35...Qc3!? 36.Qb1–+) 36.Qc2 Qc2 (36...Qa5!? 37.Nf5 Kh8 38.Rg7–+) 37.Kc2–/+ Bb4 38.Rg6 Ba5 (38...Kh8 39.Nf5 Rg8 40.Kb3 Ba5 41.Nd6–/+) 39.Nf5 Rd7 40.Nh6 Kh8 41.Bg4 Rde7 (worse is 41...gh6 42.Bd7 Re7 43.Rh6 Kg7 44.Rg6 Kh8 45.Bf5+/–) 42.Nf5 Re6 43.Rg7? (better is 43.Nd6 Rg6 44.hg6=) 43...Rb6–+ 44.c5?? (44.Rd7 Bb4–+) 44...Rc6 (better is 44...Rc8 45.Kd1 Rc5–+) 45.Rb7 Rc5 46.Kb3 Rb5 (better is 46...Rg8!? 47.Nh6 Rc7 48.Rc7 Rb8 (48...Bc7?! 49.Ng8 Kg8 50.Kc4+=) 49.Kc4 Bc7 50.Nf7 Kg7–+) 47.Rb5–/+ ab5 48.Nd6 Rb8 (48...Rf8!?–/+) 49.Nf7+= Kg7 50.Ne5 Rb6 51.Bf5 Kh6 52.Bg6 Re6 53.Ng4 Kg5 54.Bf5 Rc6 55.h6 Rh6 (55...Rc3 56.Kb2 Rc7 57.h7 Rh7 58.Bh7 Kg4 59.e5+=) 56.Nh6 Kh6 57.Bd7 Kg5 58.Bb5 Bc7 (better is 58...Kf6=) 59.Kc4+– Kh4 60.Kd4 Kg3 61.e5 Kg2 62.e6 (62.Ke4 f3+–) 62...Bd8 (62...Bd6 63.Kd5 Bf8 64.d4+–) 63.Ke5 f3 (63...Kf3 64.d4 Bc7 65.Kd5+–) 64.Bc6 Kg3 (64...Bc7 65.Kd4 Bd6 66.Bf3 Kf3 67.Kd5+/–) 65.Bf3 Kf3 66.d4 Bc7 67.Kd5 (67.Kf5 Bd6 68.Kg6=) 67...Bd8+– 68.Kd6 Ke4 69.d5 (69.Kc6 Kd4 70.Kd6=) 69...Ba5?? (better is 69...Kd4=) 70.Kd7 (70.Kd7 Kd5 71.e7+–) 1–0. Knobloch,Reiner (1705) – Vogel,Wolfgang (1655), 2. Landesliga Ost, 2001.

6.a4 Rg8 7.Nf3 Ng6 (7...Nf5 8.0–0 Bd6 9.d4 e4 10.Nfd2 c6+=; 7...Nd7 8.0–0 Nf5 9.a5 a6 10.ba6 ba6=; 7...a6 8.0–0 Nf5 9.d4 e4 10.Nfd2 Nd6=; 7...g5 8.d4 g4 9.Nfd2 Nd7 10.0–0 h6+=) 8.0–0 Bd6 9.a5 a6 10.ba6 Na6=.

6.Nc3 A) 6...Qd6 7.a4 Nf5 (7...c5 8.Nf3 e4 9.Ng1 Nd7 10.a5 0–0–0=; 7...Qb4 8.Ba3 Qa5 9.Rb1 Nf5 10.Bf8 Rf8=) 8.Ba3 Qd7 9.Bf8 Rf8 10.Nf3 d4=; B) 6...Nf5 B1) 7.Nh3 d4 (7...Qd7 8.Bg4 a6 9.ba6 Na6 10.0–0 Bb4+=; 7...Nh4 8.Bf1 Ng6 9.Qh5 a6 10.Bd3 Bf7+=) 8.Ne4 a6 9.ba6 Na6 10.0–0 Nc5+=; B2) 7.e4 de4 8.Ne4 Nd7 9.Nf3 Nc5 10.d3 Qd5+=; B3) 7.d4 e4 (7...Nh4 8.de5 fe5 9.Bg4 Bf7 10.Nf3 Ng2=; 7...Bd6 8.de5 fe5 9.e4 de4 10.Ne4 Nh4=; 7...ed4 8.ed4 Nh4 9.g3 Nf5 10.Nf3 Bd6=) 8.Bg4 c6 9.bc6 Nc6 10.Nh3 Bd6+=; B4) 7.Bh5 g6 8.Be2 Nd7 9.Nf3 e4 10.Ng1 Bd6+=; B5) 7.Nf3 a6 (7...e4 8.Ng1 Nh4 9.Bf1 Bb4 10.a3 Bc3=; 7...Nd7 8.0–0 e4 9.Ne1 Bd6 10.d3 Nc5=; 7...Be7 8.0–0 0–0 9.e4 de4 10.Ne4 Qd5=; 7...Bd6 8.e4 de4 9.Ne4 0–0 10.0–0 a6=) 8.0–0 ab5 9.Bb5 c6 10.Be2 e4+=; C) 6...c5 C1) 7.Nf3 Ng6 (7...e4 8.Ng1 f5 9.d4 c4 10.Nh3 Ng6=; 7...Nf5) 8.0–0 Bd6 9.d3 0–0 10.Bc1 a6+=; C2) 7.d4 Nd7 (7...cd4 8.ed4 ed4 9.Qd4 Nf5 10.Qd3 d4=) 8.de5 fe5 9.Nf3 d4 10.Ne4 Qa5=; D) 6...a6 D1) 7.ba6 Na6 8.Nf3 Nf5 9.0–0 Be7 10.a3 0–0+=; D2) 7.a4 Nf5 (7...ab5; 7...Bf5) 8.Nh3 d4 9.Ne4 Nh4 10.0–0 Bh3+=; D3) 7.d4 ab5 (7...e4 8.ba6 Na6 9.Rb1 Ng6 10.Bc1 Ra7+=) 8.de5 fe5 9.Bb5 c6 10.Bd3 e4+=; D4) 7.Nf3 ab5 8.Bb5 c6 9.Be2 Nf5 10.0–0 b5+=.

6.d4 A) 6...Nd7 7.de5 Ne5 (7...fe5 8.Nf3 Ng6 9.Nc3 Nb6 10.a4 Nh4=) 8.Nf3 Qd6 9.0–0 Nf3 10.Bf3 Qb4=; B) 6...Qd6 B1) 7.Ba3 Qb6 (7...Qd7 8.de5 fe5 9.Nf3 Ng6 10.Bf8 Rf8=) 8.Nf3 Nd7 9.0–0 0–0–0 10.de5 fe5=; B2) 7.Nf3 e4 (7...Nd7 8.0–0 e4 9.Nfd2 a6 10.ba6 ba6+=) 8.Nfd2 a6 9.c4 ab5 10.cd5 Bd5=; C) 6...Ng6 C1) 7.Nf3 Bd6 (7...e4 8.Nfd2 f5 9.c4 Qg5 10.g3 dc4=; 7...Bb4 8.c3 Bd6 9.Ba3 Ba3 10.Na3 a6=) 8.de5 fe5 9.Nc3 0–0 10.Nd5 e4–/+; C2) 7.Nd2 Bd6 (7...Bb4 8.a3 Ba5 9.de5 fe5 10.Ngf3 Qf6=) 8.de5 fe5 9.c4 0–0 10.Ngf3 e4+=; C3) 7.Bh5 e4 8.Ne2 a6 9.ba6 Na6 10.Ba3 Ba3=; C4) 7.de5 fe5 8.Nf3 Bb4 9.Nbd2 Qf6 10.a3 Ba5=; D) 6...e4 D1) 7.a4 Ng6 (7...Nc8 8.Nd2 Bb4 9.c3 Be7 10.c4 a6=; 7...Nd7 8.Nd2 Ng6 9.c4 Bb4 10.Ba3 Ba5=) 8.Ba3 Ba3 9.Na3 0–0 10.c4 Nh4+=; D2) 7.Nd2 c6 (7...Ng6 8.c4 Bb4 9.cd5 Qd5 10.a3 Ba5=; 7...a6 8.ba6 Na6 9.c4 Nf5 10.Nh3 Bb4=) 8.a4 Ng6 9.f3 f5 10.a5 Qg5–/+; D3) 7.Bh5 g6 (7...Ng6 8.Ne2 a6 9.ba6 Na6 10.Ba3 Ba3=) 8.Be2 a6 9.a4 Bg7 10.Nd2 0–0+=; D4) 7.Ba3 a6 (7...Nd7 8.Nd2 Nb6 9.Nb3 Nc4 10.Bc4 dc4=) 8.ba6 Na6 9.Nd2 Nb8 10.Bc5 b6+=; D5) 7.c4 dc4 8.Nd2 Qd7 9.a4 Nd5 10.Ba3 Ba3=.

6.Nf3 a6 A) 7.a4 Ng6 (7...Nf5 8.0–0 Bd6 9.Nc3 ab5 10.ab5 Ra1=; 7...ab5 8.ab5 Ra1 9.Ba1 Ng6 10.0–0 Bd6+=; 7...c5 8.d4 cd4 9.ed4 e4 10.Nfd2 Nf5=) 8.Nc3 Bd6 9.0–0 0–0 10.Re1 c5+=; B) 7.ba6 Na6 (7...b6 8.d4 e4 9.Nfd2 Ra7 10.0–0 c6=) 8.0–0 Nf5 9.d4 e4 10.Nfd2 Nd6=.

6.Nf3 Nc8 A) 7.0–0 a6 (7...Bd6 8.d4 e4 9.Nfd2 c6 10.bc6 Nc6=; 7...Be7 8.d4 e4 9.Nfd2 Nd6 10.c4 dc4=; 7...Bb4 8.d4 e4 9.Nfd2 a6 10.c3 Be7=; 7...Nd6 8.Nc3 Be7 9.d4 e4 10.Nd2 0–0=) 8.a4 Bd6 9.Nc3 0–0 10.d3 Nd7+=; B) 7.d4 e4 8.Nfd2 Nd6 9.c4 Nc4 10.Bc4 dc4=.

6.Nf3 Qd6 7.0–0 Nf5 (7...a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 Ng6=; 7...Qb4 8.Ba3 Qa5 9.d4 Nd7 10.de5 fe5=; 7...Nd7 8.d4 e4 9.Nfd2 a6 10.Ba3 Qb6+=) 8.Ba3 c5 9.d4 Nd7 10.Nc3 Rd8=.

6.Nf3 Qd7 7.0–0 Nf5 (7...a6 8.ba6 Na6 9.d4 e4 10.Nfd2 b5=; 7...Nc8 8.d4 e4 9.Nfd2 Nd6 10.a4 a6=) 8.Nc3 a6 9.ba6 Na6 10.d3 Bb4=.

6.Nf3 Nf5 A) 7.0–0 a6 (7...Qd7 8.Nc3 a6 9.ba6 Na6 10.d3 d4=; 7...Bd6 8.d4 e4 9.Nfd2 c6 10.bc6 Qc7=; 7...Be7 8.d4 e4 9.Nfd2 Nd6 10.c4 dc4=; 7...Nd7 8.d4 e4 9.Nfd2 Nb6 10.a4 a6+=) 8.a4 Bd6 9.d3 ab5 10.ab5 Ra1=; B) 7.a4 Qd7 (7...c5 8.d3 Bd6 9.0–0 0–0 10.a5 a6=; 7...Bb4 8.0–0 0–0 9.d4 e4 10.Nfd2 a6=; 7...Be7 8.d4 e4 9.Nfd2 a6 10.0–0 ab5=; 7...Bd6 8.0–0 0–0 9.d3 Qd7 10.c4 dc4=) 8.0–0 a6 9.Ba3 Ba3 10.Na3 ab5=; C) 7.d4 e4 8.Nfd2 a6 9.c4 ab5 10.cd5 Bd5=.

6.Nf3 Ng6 7.0–0 Bb4 (7...Bd6 8.d4 c6 9.de5 fe5 10.Nbd2 0–0+=; 7...Nd7 8.d4 e4 9.Nfd2 f5 10.c4 Qg5=; 7...a6 8.d4 e4 9.Nfd2 ab5 10.Bb5 c6=; 7...Be7 8.d4 e4 9.Nfd2 a6 10.ba6 Na6=) 8.a3 Bd6 9.Nc3 a6 10.a4 0–0+=.

6.Bh5 A) 6...Ng6 A1) 7.Nf3 a6 (7...Kd7 8.d4 e4 9.Nfd2 f5 10.c4 dc4+=; 7...Qd7 8.a4 a6 9.Qe2 ab5 10.ab5 Ra1+=; 7...Bd6 8.Nh4 Kf7 9.Ng6 hg6 10.Bg4 f5+=; 7...Bf7 8.0–0 Qd7 9.a4 a6 10.Nc3 Bb4=) 8.d4 e4 9.Nh4 Bf7 10.Ng6 hg6+=; A2) 7.Nc3 Qd7 (7...Bb4 8.a3 Bd6 9.Nf3 Nd7 10.e4 d4+=; 7...Bd6 8.Nf3 Nd7 9.0–0 Qe7 10.a4 0–0–0=; 7...Nd7 8.Nf3 Bb4 9.0–0 a6 10.Qe2 0–0=; 7...a6 8.Nf3 ab5 9.Nb5 Ra5 10.Nc3 Nc6+=) 8.Nf3 Bf7 9.0–0 a6 10.Qe2 ab5+=; A3) 7.d4 Nd7 (7...Qd7 8.de5 Qb5 9.Bc3 Nd7 10.ef6 Nf6=; 7...e4 8.Ne2 Qd7 9.a4 a6 10.Nbc3 Bb4=; 7...Bb4 8.c3 Bd6 9.Nf3 Nd7 10.Ba3 Ba3=; 7...ed4 8.Bd4 Qd7 9.a4 a6 10.Nc3 c6=) 8.Nf3 Bd6 9.de5 Nde5 10.0–0 0–0=; B) 6...g6 7.Be2 Nf5 8.Nf3 a6 9.0–0 ab5 10.Bb5 c6+=.

6.Nf3 Nd7

7.0–0 Ng6 (7...Nf5 8.d4 e4 9.Nfd2 Nb6 10.a4 a6+=; 7...Nb6 8.d4 e4 9.Nfd2 Nf5 10.a4 a6+=; 7...c6 8.a4 a6 9.d4 e4 10.Nfd2 ab5=) 8.d4 Be7 9.c4 dc4 10.Qc2 a6=.

7.d4 e4 8.Nfd2 Nb6 9.a4 c6 10.c4 (10.0–0 Qd7+=) 10...cb5 (10...Nc4!? 11.Bc4 dc4 12.Ne4 cb5 13.Qh5 Bf7 14.Qb5 Nc6=) 11.cd5+= Bd5 12.Bb5 Nc6 13.Nc3 f5 14.0–0 (14.a5 Nc8+=) 14...Bf7 (14...a6 15.Nd5 Qd5 16.Bc6 bc6 17.Qc2=) 15.Nb3 (15.f3 Qg5 16.Qe2 Nd5 17.fe4 Qe3 18.Qe3 Ne3+/–) 15...Nd5 16.Nd5 Qd5 17.Na5 a6 18.Nc6 bc6 19.Be2 Bb4 20.Rc1 0–0 21.Bc4 Qc4 22.Rc4 Bc4 23.g3 (better is 23.Qc2!? Bf1 24.Kf1+/–) 23...Kh8 (23...Rab8 24.Qc2 Bf1 25.Kf1=) 24.d5 (24.Qc2 Bf1 25.Kf1 Rac8=) 24...c5+= (24...Bd5? 25.Qd4 Rg8 26.Qb4+–; 24...cd5?! 25.Qd4 Rf7 26.Rc1=; 24...Bf1 25.Qd4 Rf7 26.Qb4+= (26.Kf1?! c5 27.Qc4 a5=)) 25.Re1 (25.d6 Ra7+=) 25...Be1 26.Qe1 Bd5 27.Qc3 Rf7 28.Qc5 Bb3 (better is 28...Rd7–/+) 29.Qc6+= Rg8 30.Qa6 Bd1 31.h3 Bf3 32.Qe6 (32.Qb5!?+=) 32...Rb7= 33.Qe5 Rgb8 34.g4? (better is 34.Bc1+=) 34...Rb2–+ 35.gf5 Rb1 (35...R2b6 36.Qc7–+) 36.Kh2 Ra8 37.f6 Rb7 (37...Rh1 38.Kg3 Rg1 39.Kf4–+) 38.Qd5 Rab8 (better is 38...Rba7!? 39.fg7 Kg7 40.Qg5 Kh8 41.Qf6 Rg7–+) 39.f7–/+ Ra7 40.Qd6 Raa8 41.Kg3 Rf8 42.Kf4?? (better is 42.Qe7–+) 42...Rf7 43.Kg5 Rfa7 44.h4 Ra4 45.h5 (45.Kf4 R4a6 46.Qc5 Rg6–+) 45...R4a5 46.Kf4 Rh5 47.Qc6 Rf8 48.Kg3 Rhf5 (better is 48...Rg5 49.Kh3 h6–+) 49.Qe6 h6 50.Qd6 R8f6 51.Qd8 Kh7 52.Qe8 Rg6 0–1. Riegler,Johannes – Xia,Zhengguang, Vienna–ch, 2004.

5.f4 Bd6

6.fe5 Be5 7.Be5 fe5 8.Qh5 Kd7 9.Qe5 Qh4 10.g3+/– Qf6 11.Qc3 +=.

6.fe5 fe5

7.Bd3 Nf6 8.Nf3 (8.Be2 0–0 9.Nf3 e4 10.Ne5 Nbd7 11.Nd7–+; 8.Ne2 Bg4 9.h3 Bh5 10.Bf5 g6 11.Bd3–/+) 8...e4 9.Nd4 Bd7 10.Be2 Ng4 11.g3 –/+.

7.Be2 A) 7...Nd7 8.Nf3 e4 9.Bg7 ef3 10.Bf3 Qh4 11.Ke2–/+; B) 7...Qe7 8.Nf3 (8.Bh5 Kd8 9.Be2 e4 10.g3 Nf6 11.Bd4–/+; 8.a3 e4 9.Bh5 Kd8 10.g3 Nf6 11.Be2–/+; 8.g3 Nf6 9.Nf3 Bg4 10.Nc3 0–0 11.0–0–/+) 8...Nd7 9.0–0 Ngf6 10.Ng5 Rf8 11.Ne6=; C) 7...Qh4 8.g3 Qh6 9.Bh5 Kd8 10.Bf3 Kc8 11.e4+=; D) 7...Nh6 8.Nf3 e4 9.Bg7 Rg8 10.Bh6 ef3 11.Bf3–+.

7.Be5? Qh4! 8.g3 Qe4 9.Bg7 Qh1 10.Nf3 Bg4 11.Kf2 Nf6! 12.Nc3 Ne4–+.

7.Nf3 Nd7 8.g3 (8.Be2 e4 9.Bg7 ef3 10.Bf3 Qh4 11.Ke2 Be5 12.Bh8 Bh8+=; 8.Bd3 Qe7 9.e4 Ngf6 10.ed5 Bd5 11.Be2+=) 8...Nh6 (8...Ngf6 9.Be2–/+ Bg4 10.Nc3 0–0 11.Ng5–/+) 9.c4 (9.Bg2 0–0+= 10.0–0 a6 11.a4+=) 9...0–0 (9...dc4 10.Qc2 A) 10...Qf6 11.Be2–/+ (11.Bg2–/+); B) 10...Rf8 11.Be2–/+) 10.Be2 (10.cd5 Bd5 11.Be2 e4–/+) 10...e4 (10...dc4 11.Qc2 Nb6 12.0–0–/+) 11.Nd4 Bh3 12.Qc1 (12.Qb3 Nc5 13.Qc2 Ng4–/+) 12...Qf6–+ 13.Kd1 Ne5 (13...Ng4 14.Kc2 Nf2 15.Nc3 Nh1 16.Qh1–+) 14.Qc3 (14.Nc3 Nd3 (14...dc4?! 15.Ne4 Qg6 16.Bc4 Kh8 17.d3–/+) 15.Nd5 Qf2–+) 14...Nhg4 15.Kc2 Nf2 16.Rg1 c5 17.bc6 bc6 (17...Nc6?! 18.Nc6 bc6 19.Qf6 gf6 20.Nc3=) 18.Ba3 Ned3 19.Bd6 Qd6 20.Qa3 (20.Na3 c5 21.Nb3 Rab8–+) 20...Nb4 21.Kc1 a5 22.Qc3 Rab8 23.d3 (23.c5 Qe7 24.Nb3–+) 23...Nbd3 24.Kd2 Rb2 25.Nc2 d4! 26.Qd4 (26.Qd4 Qb4; 26.ed4 Qb8) 26...Qb4 27.Qc3 Rd8 (27...Rd8 28.Qb4 Nb4 (28...Rb4?! 29.Nb4 Nb4 30.Kc3=) 29.Kc3 Rc2 (29...Nc2?! 30.Kb2 Na1 31.g4–/+) 30.Kb3 Re2–+) 0–1. Stabenow,Juergen – Lippstreu,Guenter, corr DDR–ch7, 1972.

7.Qh5 A) 7...g6 8.Qd1 (8.Qe2 Nf6 9.Nf3 e4 10.Nd4 Bg4 11.Qf2+=) 8...Qh4 9.g3 Qe4 10.Nf3 Nd7 11.Bd3=; B) 7...Bf7 8.Qg4 g6 9.Nf3 Nf6 10.Qh4 Nbd7 11.Be2+=.

5.f4 ef4

6.ef4 Bd6

7.g3 Nd7 8.Qe2 Qe7 9.Bg2 Nh6 10.Nf3 (10.Nf3 0–0–0 11.0–0+=). Deneuville,Christian – Thierry,Benoit, Picardie–07ch, 1994.

7.Qh5 Kf8 (7...Bf7 8.Qg4 Bg6 9.Ne2 (9.Nc3+= Ne7 10.Nge2 0–0 11.Nd4 Qd7 12.Be2+=; 9.Ba3 Ne7 10.Ne2 Ba3 11.Na3 Qd6 12.Qh3+=) 9...Qd7 10.Qd7 Nd7 11.Ba3 Ba3 12.Na3+=) 8.Ne2= Ne7 (8...c5 9.bc6 (9.g3 Ne7 10.Na3 a6 11.ba6 Na6 12.Bg2+=) 9...Nc6 10.Nbc3 Rc8 11.Rc1 Qb6 12.Ba1=; 8...Qd7 9.a4 (9.Nbc3 Ne7 10.Qf3 Kf7 11.Nd4 Bg4 12.Qg3+=; 9.Ba3 Ba3 10.Na3 a6 11.ba6 Na6 12.Qf3+=; 9.Nd4 Bf4 10.Be2 Bf7 11.Qh4 g5 12.Qf2=) 9...Ne7 10.h3 Bf5 11.Nbc3 Bg6 12.Qf3=; 8...Qe8 9.Qe8 Ke8 10.Ba3 Ba3 11.Na3 Kf7 12.Nd4=; 8...Bf7 9.Qf3 Ne7 10.Nbc3 Kg8 11.Nd4 c5 12.bc6=) 9.Nd4 Bf7 10.Qg4 (10.Qf3 c5 11.bc6 Nbc6 12.Nb5=) 10...Qc8 (10...c5 11.bc6 Nbc6 12.Nb5=) 11.Qc8 Nc8 12.g3 c5 13.Nf5 Nd7 14.Bg2 g6 15.Nd6 (15.Nh6 Be6 16.f5 gf5=) 15...Nd6 16.Bh3 (16.0–0 Nb5 17.Bh3 Ke8+=) 16...Nf5 (better is 16...Re8!? 17.Kd1 Be6 18.Be6 Re6+=) 17.Bf5+= gf5 18.d4 Kg7 19.Nd2 a6 20.dc5 Nc5 21.ba6 Ra6 22.Bd4 (22.Nf3 Re8 23.Kf2 Ne4 24.Kg2 Rb6=) 22...Re8 23.Kf2 (23.Kd1 Ne6 24.Nb3 Ra4=) 23...Ne4 24.Ne4 de4 25.Rhb1 Rea8 (25...Rc8 26.c3= (worse is 26.Rb7 Rc2 27.Kg1 Rd6–/+)) 26.Rb7 Ra2 27.Ra2 Ra2 28.Rb2 (28.Rc7 Ra4 29.Ke3 Rc4 30.Rc4 Bc4+=) 28...Rb2= 29.Bb2 Ba2 30.Ke3 Kf7 31.Kd4 Ke6 ½–½. Steinbacher,Matthias – Reich,Alfred1, GER–ch U18 Uelzen, 1970.

7.Qe2 Qe7

8.g3 Bg4

9.Qe7 Ne7

10.Bg2 Nd7

11.Ne2 0–0 12.Ba3 Ba3 13.Na3 Rfe8 14.h3 Bh5 15.d4 f5 16.Kd2=.

11.Ne2 0–0 12.Nbc3 c6 (12...Nb6 13.h3 Bd7 14.a4 Rae8 15.a5 Nbc8 16.Nd5=) 13.h3 Bf5 (13...Bh5 14.a4 Rfe8 15.Ba3 Bc7 16.Rb1=) 14.0–0–0 (14.Nd4 Nb6 15.Kd1 Bg6 16.Ne6+=) 14...a6 (14...Rfe8 15.Nd4 Nb6 16.Rde1+= (worse is 16.Nf5 Nf5 17.g4 Ng3–/+); 14...Nb6 15.Nd4 Bd7 16.Bf3+=) 15.g4 (15.bc6!? bc6 16.Nd4=) 15...ab5+= 16.gf5 b4 17.Nb1 Nf5 (17...Ra2!? 18.Rde1 Re8+=) 18.h4= Nb6 (worse is 18...Ra2 19.Bh3 g6 20.Rdg1+/–) 19.Bh3 Nh6 20.c3 Rfe8 21.Rde1 Ra2 22.cb4 Bb4 23.Nbc3 Raa8 24.Nd4 Re1 25.Re1 Bd6 26.Ne6 Nc4 27.Rg1 g6 28.f5 (28.h5 Kf7+=) 28...Kf7 29.fg6 hg6 30.h5 (30.Ne2!?+=) 30...g5–/+ (worse is 30...gh5 31.Rg7 Ke8 32.Rb7+=) 31.Nd4 (31.Rg2–/+) 31...Bf4 (31...Nb2 32.Kb2 Bc5 33.Be6 Ke7 34.Nce2–+) 32.Nb3 (32.Rg2 g4 33.Bg4 Ng4 34.Rg4 Bd2 35.Kb1 Bc3 36.Bc3 c5–/+) 32...Re8 33.Kc2 (33.Bg2 b5–/+) 33...Nb2 34.Kb2 f5 35.Rf1 Kf6 36.Bg2 (36.Nd4 Ra8–/+) 36...Ng4 (36...Bg3 37.Na5 Kg7 38.Kc2+= (38.Nb7? Rb8–+)) 37.Bd5 Rh8 (37...cd5?! 38.Nd5 Ke6 39.Nf4 gf4 40.Nd4 Kf6 41.Rf4=) 38.Bg2 (38.Nc5 Rh5 39.Nb7 Ne5+=) 38...Rh5–+ 39.Ne2 Be5 40.d4 Bc7 41.Be4 (41.Bf3 Ne3 42.Bh5 Nf1–/+) 41...Ne3–+ 42.Rf3 (42.Rh1 Rh4 (42...fe4 43.Rh5 Kg6 44.Rh8+/–) 43.Rh4 gh4–/+) 42...f4 43.Nc5 (43.Kc3 Rh2 44.Re3 fe3–+) 43...Rh2 44.Bd3 g4 (44...g4 45.Re3 fe3–+) 0–1. Bravo Ardila,P – Perez,G, corr ESP–Cup2, 1987.

11.Ne2 0–0 12.h3 A) 12...Bf5 13.Ba3 (13.Nd4 Rfe8 14.Kd1 Bg6 15.Re1 Nc5 16.Ba3=; 13.Nbc3 Nb6 14.d3 Bb4 15.a3 Bc5 16.a4=) 13...Ba3 14.Na3 Rae8 15.0–0 Nb6 16.Nd4=; B) 12...Be6 13.Nd4 (13.Ba3 Ba3 14.Na3 Rfe8 15.0–0 Nb6 16.Rfe1=; 13.0–0 Rfe8 14.Ba3 Nc5 15.Nd4 Bf7 16.Re1=) 13...Bf7 14.Ba3 Ba3 15.Na3 Rae8 16.0–0=; C) 12...Bh5+= 13.Ba3 (13.d4 Rfe8 14.g4 Bf7 15.Ba3 Ba3 16.Na3+=) 13...Ba3 14.Na3 Rfe8 15.d4 f5 16.Kd2=.

11.Ne2 0–0–0 A) 12.Bd4+= A1) 12...Bc5 13.h3 (13.Nbc3 Nf5 14.Bc5 Nc5 15.Kf2 Rhe8 16.d4+=; 13.Bc5 Nc5 14.h3 Be2 15.Ke2 Nf5 16.Kf2+=) 13...Be2 14.Bc5 Nc5 15.Ke2 Nf5 16.Kf2+=; A2) 12...Kb8 13.Nbc3 (13.h3 Be2 14.Ke2 Rhe8 15.Kd1 Nf5 16.Bf2+=) 13...Rhe8 14.h3 Bh5 15.g4 Bf7 16.0–0–0=; A3) 12...Rde8 13.Nbc3 Nf5 14.Bf2 d4 15.h3 Be2 16.Ne2+=; A4) 12...Rhe8 13.Nbc3 Nf5 14.Bf2 Bb4 15.Kf1 Nb6 16.Bb6–/+; B) 12.Nbc3 Nb6 (12...Rde8 13.0–0–0 Nb6 14.h3 Bh5 15.Rde1 Bc5 16.Rhf1+=; 12...Rhe8 13.0–0–0 Bc5 14.h3 Be2 15.Ne2 Nf5 16.Bf3=) 13.h3 Bh5 14.0–0–0 Rhe8 15.Rde1 Bc5 16.d4+=.

11.Ne2 Nb6 A) 12.Bd4 A1) 12...0–0 13.Nbc3 (13.h3 Bf5 14.Kd1 c5 15.bc6 bc6 16.Nbc3+=) 13...c5 14.bc6 bc6 15.h3 Bf5 16.d3+=; A2) 12...c5 13.bc6 bc6 14.Nbc3 0–0 15.h3 Bf5 16.d3+=; A3) 12...c6 13.h3 Bf5 14.d3 c5 15.Bf2 0–0 16.a4+=; A4) 12...0–0–0 13.Bb6 (13.Nbc3 Rhe8 14.0–0 Nc4 15.Rf2 c5 16.bc6–/+; 13.Nec3 Rhe8 14.0–0 Nf5 15.Bb6 ab6 16.a4–/+) 13...ab6 14.Nbc3 Rhe8 15.h3 Be2 16.Ne2+=; B) 12.Nbc3 B1) 12...0–0 13.0–0–0 (13.d3 Rfe8 14.h3 Be2 15.Ne2 Nf5 16.Kf2–/+; 13.h3 Bh5 14.0–0–0 a6 15.Rhe1 Ra7 16.Kb1+=) 13...a6 14.Rde1 Bc5 15.Nd4 Kf7 16.Nb3=; B2) 12...0–0–0 13.h3 Bd7 14.0–0–0 Rhe8 15.Rhe1 Bc5 16.g4+=; B3) 12...Bd7 13.a4 (13.d3 0–0 14.a4 a5 15.ba6 Ra6 16.a5=; 13.0–0 0–0–0 14.a4 Nc4 15.Bc1 Bf5 16.d3+=) 13...Nc4 14.Bc1 c6 15.d3 Na5 16.Bd2=; B4) 12...Bc5 13.h3 Be6 14.0–0–0 Bd7 15.a4 c6 16.d3+=; C) 12.h3 Be2 13.Ke2 Nf5 14.Kf3 Na4 15.Bc3 d4 16.Re1–/+; D) 12.Nd4 Nc4 13.Bc3 0–0–0 14.h3 Bd7 15.0–0 Bc5 16.Kh2+=; E) 12.Ba3 E1) 12...0–0–0 13.Bd6 (13.h3 Be2 14.Ke2 Nf5 15.Bd6 Rd6 16.Kf2–/+; 13.Nd4 c5 14.bc6 Nc6 15.Nc6 Rhe8 16.Kf2+=; 13.Kf2 Rhe8 14.Bf3 Bh3 15.Bd6 Rd6 16.Re1+=) 13...Rd6 14.Nbc3 Re6 15.Kf2 c5 16.bc6=; E2) 12...Ba3 13.Na3 Kd8 14.Kf2 Re8 15.Rhe1 a6 16.h3+=.

5.h3 Bd6

6.Bd3 A) 6...Nh6 A1) 7.Nf3 0–0 (7...Nd7 8.0–0 0–0 9.Be2 c5–/+) 8.e4 c6 9.0–0 Nd7–/+; A2) 7.e4 c6 (7...f5 8.ed5 Bd5 9.Nc3 Bf7–/+) 8.Nf3 Nd7 9.bc6 bc6–/+; A3) 7.Ne2 Nd7 (7...0–0 8.0–0 Nd7 9.Ng3 Qe8–/+) 8.Ng3 0–0 9.0–0 Qe8–/+; B) 6...Nd7 B1) 7.f4 Ne7 (7...Nh6 8.Nf3 0–0 9.0–0 Nf5–/+) 8.Nf3 Nf5 9.Bf5 Bf5–/+; B2) 7.Qh5 Bf7 8.Qg4 g6 9.Qd1 Ne7–/+; B3) 7.Nf3 Ne7 (7...Nh6 8.0–0 0–0 9.Be2 c5–/+) 8.0–0 0–0 9.a4 Qe8–/+; C) 6...Ne7 C1) 7.Nf3 0–0 (7...Nd7 8.0–0 0–0 9.a4 Qe8–/+) 8.a4 c5 9.bc6 Nbc6–/+; C2) 7.Nc3 Nd7 (7...0–0 8.Qh5 e4 9.Bf1 Nd7–/+) 8.Nf3 0–0 9.Be2 Qe8–/+; C3) 7.Ne2 Nd7 (7...0–0 8.0–0 Nd7 9.Ng3 Qe8–/+) 8.Ng3 0–0 9.0–0 Qe8–/+.

6.d4 A) 6...Nh6 A1) 7.Nf3 Nf7 (7...e4 8.Nfd2 0–0 9.c4 f5–/+) 8.de5 fe5 9.c4 c6–/+; A2) 7.Nc3 c6 8.Nf3 0–0 9.Rb1 c5–/+; A3) 7.de5 fe5 (7...Be5 8.Nc3 0–0 9.Nf3 a6+=) 8.Nf3 Nd7 9.c4 Bb4+=; B) 6...Ne7 B1) 7.Nf3 e4 (7...Ng6 8.de5 fe5 9.Nc3 Nh4+=) 8.Nfd2 f5 9.Qh5 Bf7–/+; B2) 7.de5 fe5 (7...Be5 8.Be5 fe5 9.Qh5 Ng6+=) 8.Nf3 Ng6 9.Nc3 Nh4+=; C) 6...Nd7 C1) 7.Qh5 Bf7 (7...g6 8.Qd1 Ne7 9.Nf3 0–0–/+) 8.Qg4 Bg6 9.c4 ed4–/+; C2) 7.de5 fe5 8.Nf3 Ngf6 9.Ng5 Qe7–/+; C3) 7.Nf3 Qe7 (7...Nh6 8.c4 dc4 9.Qc2 Bb4–/+) 8.c4 dc4 9.Qc2 Bb4–/+.

6.Be2 A) 6...Nh6 A1) 7.Nc3 0–0 (7...f5 8.Nf3 0–0 9.0–0 Nf7–/+) 8.Nf3 a5 9.a4 Nd7–/+; A2) 7.d4 0–0 (7...e4 8.Bf1 a6 9.a4 ab5–/+) 8.Nf3 e4 9.Nfd2 f5–/+; A3) 7.Nf3 0–0 (7...Nd7 8.0–0 0–0 9.a4 Nf7–/+) 8.0–0 Nd7 9.a4 Nf7–/+; B) 6...a6 B1) 7.d4 e4 (7...Nh6 8.de5 Be5 9.Nc3 ab5–/+) 8.ba6 Na6 9.Ba3 Ne7–/+; B2) 7.Bg4 Bf7 (7...f5 8.Bh5 g6 9.Be2 ab5–/+) 8.Nc3 ab5 9.Nb5 Bb4–/+; B3) 7.Nc3 Ne7 (7...Nh6 8.Nf3 0–0 9.0–0 Nf7–/+) 8.Nf3 0–0 9.0–0 Qe8–/+; C) 6...Ne7 C1) 7.Nf3 0–0 (7...Nd7 8.d4 e4 9.Nfd2 0–0+=) 8.d4 e4 9.Nfd2 f5–/+; C2) 7.Bg4 Bf7 (7...Bd7 8.Bh5 g6 9.Be2 0–0–/+) 8.Bh5 g6 9.Be2 0–0–/+; C3) 7.Bh5 g6 (7...Ng6 8.Ne2 0–0 9.0–0 a6–/+) 8.Be2 0–0 9.Nf3 c5–/+.

6.Nf3 a6 A) 7.a4 Ne7 (7...Nh6 8.c4 ab5 9.cd5 Bd5+=) 8.d4 e4 9.Nfd2 ab5–/+; B) 7.d4 e4 8.Nfd2 ab5 9.Bb5 c6–/+; C) 7.Nc3 Nh6 (7...Ne7 8.Bd3 Bc5 9.ba6 Na6–/+) 8.Be2 0–0 9.0–0 Nf7–/+.

6.Nf3 Nd7 A) 7.d4 Qe7 (7...Nh6 8.c4 dc4 9.Qc2 Bb4–/+) 8.c4 dc4 9.d5 Bf7–/+; B) 7.Nc3 Ne7 (7...Nh6 8.Be2 0–0 9.0–0 f5–/+) 8.Be2 0–0 9.0–0 Qe8–/+; C) 7.Be2 Nh6 (7...Ne7 8.d4 Ng6 9.h4 0–0+=) 8.0–0 0–0 9.a4 Nf7–/+.

6.Nf3 Ne7 7.Be2 (7.d4 e4 (7...Ng6 8.de5 fe5 9.Nc3 0–0–/+) 8.Nfd2 f5 9.Ba3 0–0–/+) 7...0–0 (7...a6 8.Nc3 0–0 9.0–0 Qe8–/+) 8.0–0 (8.d4 e4 9.Nfd2 f5–/+) 8...c5 (8...Qe8 9.Nh4 e4–/+) 9.d3 (9.bc6 Nbc6–/+) 9...Nd7 (9...Ng6–/+) 10.Nbd2 b6 11.c4 d4 12.ed4 cd4 13.Re1 h6 14.Bf1 Ng6 (better is 14...Nc5+=) 15.Nd4+/– Re8 (15...ed4 16.Re4 Double attack (16.Re6 Pinning; 16.Re6 Deflection; 16.Re4 Decoy)) 16.Ne6+– Re6 17.Nf3 Nf4 (17...a6 18.d4 Bb4 19.Re3+–) 18.Nh4 (18.g3 Ng6 19.Bg2+–) 18...Nc5? (18...Bb4 19.Re3 Bc5 20.Re4+–) 19.Nf5 (19.g3 Ncd3 20.Bd3 Nh3 21.Kg2 Bc5+–) 19...Kh7 (better is 19...Rc8!?+/–) 20.Nd6?? (better is 20.g3 Ng6 21.Bg2+–) 20...Rd6 0–1. Radwan,Jan (1690) – Krawiec,Stanislaw (1660), Ogolnopolski Turniej Niepelnosprawnych Poland, 2011.

6.Nf3 Nh6 A) 7.Nc3 0–0 (7...Nf7 8.Be2 0–0 9.0–0 f5–/+) 8.Be2 a5 9.Na4 Qe8–/+; B) 7.d4 Nf7 (7...e4 8.Nfd2 0–0 9.c4 f5–/+) 8.de5 fe5 9.c4 c6–/+; C) 7.Be2 Nd7 (7...0–0 8.0–0 Qe8 9.a4 Nd7–/+) 8.0–0 0–0 9.a4 Nf7–/+.

6.Qh5 A) 6...g6 A1) 7.Qh4 Nd7 (7...a6 8.c4 g5 9.Qh5 Bf7–/+) 8.Ba3 Ba3 9.Na3 Qe7–/+; A2) 7.Qf3 Nd7 (7...a6 8.Nc3 ab5 9.Nb5 Be7–/+) 8.a4 Ne7 9.a5 a6–/+; A3) 7.Qd1 Ne7 (7...Nd7 8.Nf3 Nh6 9.Be2 0–0–/+) 8.d4 ed4 9.Bd4 0–0–/+; B) 6...Bf7 7.Qg4 g6 (7...Bg6 8.Nf3 Ne7 9.Nh4 h5+=) 8.Nc3 Nd7 9.a4 f5–/+.

5.Qh5 g6

6.Qd1 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 Ne7 10.Nf3 Bg7 11.d3 0–0=+ 12.c4 dc4 13.Nc3 cd3–/+ 14.Bd3 Nd7 15.0–0 Nc5 16.Bc2 Bc4 17.Qd8 Rd8–+ 18.Rc1 Nb3 19.Bb3 Bb3–+ 20.Ne4 Bc4 21.Nc5 b6 22.Ne4? Bb5 23.Bc3 c5 24.h3 Bc6 25.Ned2 e4 26.Ne1 Kf7 27.Nc2 b5 28.Ba5 Rd3 29.Nf1 b4 30.Bb4 cb4 31.Nb4 Rd6 32.Nc6 Rc6 33.Rb1 .Rc2 34.Ng3 f5 35.Rb7 Be5 36.Nf1 Ke6 0–1. stoker – beat, Live Game Caissa's Web, 2004.

6.Qd1 Nh6 7.a4 Nd7 8.Be2 c5 9.Nf3 Qc7 10.h3 Be7 11.d3 0–0 12.Nbd2 f5 13.Nh2 Bf6 14.c4 e4 15.d4 cd4 16.ed4 e3 17.fe3=+ Bh4 18.Kf1 Qg3 19.Nhf3?? Qf2# 0–1. OutOfBounce – Marcel, Live Game Caissa's Web, 2005.

6.Qh4 Nd7 7.d4 =+.

6.Qh4 Bf5 7.Bd3 (7.c4 c6=) 7...Bd3 8.cd3 c6 9.d4 e4 10.Nc3 cb5 11.Rc1 (11.Qh3 f5 12.Nb5 Qd7=) 11...a6 (11...Nc6!? 12.Nh3 b4–/+) 12.Nh3 b4 13.Ne4 de4 14.Qe4 Qe7?? (better is 14...Ne7 15.Nf4 Qd7=+) 15.Rc8 +–.

6.Qh4 Nh6 7.Bd3 Nf5 8.Qa4 Nd7 9.Nh3? (better is 9.Ba3–/+) 9...Nc5 –+.

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