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TESTG840 Release 2018-01-24
Send your 1.b4 games to me, please. Thank you! /Marek
Marek Trokenheim's homepage
(c) Marek Trokenheim

1.b4 e5 2.Bb2 d6 3.c4 g6

(...)

4.Qb3 Bg7 5.e3 Nh6 6.Be2 0–0 7.Nf3 f5 8.c5 Nf7 9.Bc4 Nc6 10.b5 Na5 11.Bf7 Rf7 12.Qb4 b6 13.c6 a6 14.a4 Be6 15.0–0 Nb3 16.Ra3 a5 17.Qh4 Bf6 18.Qg3 Qe7 19.h4 Rg7 20.Ng5 h6 21.Ne6 Qe6 22.Qh3 Nc5 23.d4 Nb3 (better is 23...Na4 24.Ra4 Qb3 25.de5 de5–/+) 24.d5!+/– Qd5 25.e4! Qe4 (25...Qe4 26.Qe3 Double attack (26.Qb3 Discovered attack; 26.Rb3 Deflection; 26.Qe3 Decoy); 25...fe4 26.Qe3 Double attack (26.Qb3 Discovered attack; 26.Qe3 Decoy)) 26.Qb3 (worse is 26.Rb3 Qa4 27.f4 Qc4+=) 26...Kh7 27.g3 g5 28.h5 Rf8 29.Nd2 Qe2 30.Qd3 Qh5 31.Qf5 Kg8 32.g4 Qe8 33.Rf3 Rff7 34.Qe4 Qe6 35.Qf5 Qa2 (35...Qe8 36.Rh3 Bd8+–) 36.Bc3 Be7 37.Qc8 Bf8 38.Rf7 (better is 38.Ra1 Qc2 39.Qe6+–) 38...Rf7= 39.Ne4 Qc2 40.f3 d5 41.Ng3 (41.Be5 de4 42.Bc7 ef3–+) 41...Qc3 42.Nf5 Qd3 43.Nh6 Kg7 44.Nf7 Bc5 45.Kg2 (45.Kh2 Qe2 46.Kg3 Qf1 47.Qh8 Kf7 48.Qh7 Ke6 49.Qf5 Ke7 50.Qh7 Ke8 51.Qh5 Kf8 52.Qh8 Ke7 53.Qh7 Kf6 54.Qh6 Ke7 55.Qh7=) 45...Qe2 46.Kg3 Qf1 47.Qh8 Kf7 48.Qh7 Kf8 49.Qh8 ½–½. Althoff,Guntram (2110) – Graf,A (2620), 23rd Staufer–Open, 2011.

4.b5 b6 5.e4 Bb7 6.d3 Nd7 7.Nf3 Nc5 8.Be2 Bg7 9.0–0 h5 10.Nbd2 Qf6 11.d4 Nd7 12.de5 Ne5 13.Ne5 de5 14.f4 Ne7?? 15.fe5 Qe6? 16.Bf3?? Rd8 17.Qc2 0–0 18.Rad1 Be5 19.Be5 Qe5 20.Rfe1 Rd6 21.Nb3 Rfd8 22.Nc1 Rd4 23.Rd4 Rd4 24.Nb3 Rd1?? 25.Rd1+– 1–0. valpa – Grunert, playchess.de, 2002.

4.b5 Nf6 5.d4 ed4 6.Bd4 =.

4.b5 Bg7 5.a4 (5.Nc3 f5=) 5...f5 (5...Nf6 6.d4+=) 6.e3= Nf6 7.Nc3 (7.d4 Nbd7=) 7...0–0+= 8.Nf3 Nbd7 (8...e4 9.Nd4+=) 9.d4= ed4 (9...e4 10.Nd2=) 10.Nd4 Nc5 11.Be2 a6 12.0–0 Bd7 (12...Nfe4 13.Nd5+=) 13.Nb3 (13.a5 Qe7+=) 13...Nfe4 (13...Ne6 14.Qd3=) 14.Ne4+= Ne4 (14...Nb3 15.Qb3 fe4 16.c5 Kh8 17.cd6 cd6 18.ba6 ba6 19.Bg7 Kg7+/–) 15.Qd5+/– Rf7 16.Bg7 c6 17.Qd4 Rg7 18.f3 Nf6 19.Qd6 Qe7 20.Qe7 (20.Qd4!?+/–) 20...Re7+= 21.Kf2 ab5 (21...Rae8 22.Rfe1 Re3 23.Na5+=) 22.ab5 (22.cb5!? Kf8 23.Nc5+/–) 22...Rae8+= 23.Rfe1 Re3 24.Nc5 (24.Na5 b6 25.Nc6 Bc6 26.bc6 R3e6+/–) 24...Bc8+= 25.Nd3 (25.b6 R3e5 26.Nd3 R5e7+=) 25...cb5 26.cb5 R3e7 (26...Kg7 27.f4+=) 27.Nf4 (27.Nc5 Kg7=) 27...Kf8 (27...g5 28.Bc4 Kg7 29.Re7 Re7 30.Ne2=) 28.h4 Be6 29.Bf1 (29.Bd3 Bf7+=) 29...Bf7= 30.Re7 Ke7 (30...Re7 31.g3=) 31.Be2 (31.Ra7 Rb8+=) 31...Kd6 32.Rc1 (32.Rd1 Kc5=) 32...Nd5 33.Nd3 (33.Nd5 Bd5 34.g3 b6=) 33...Re7 (33...Ra8 34.Nc5 b6 35.Nd3=) 34.Nb2 (34.g4 Rc7=) 34...Nb6 (34...f4 35.Nc4 Kc5 36.Ne3 Kb6 37.Nd5 Bd5 38.Ra1=) 35.g4 fg4 36.fg4 Bd5 37.Nd1 Rc7 (37...h6 38.Bd3 Be4 39.Nb2=) 38.Rb1 (38.Rc7 Kc7 39.Nc3 Kd6+=) 38...Bc4 (38...Rf7 39.Kg3=) 39.Bf3 (39.Ne3 Be2 40.Ke2 Re7=) 39...Bd3 40.Ra1 (40.Rb3 Bc2 41.Re3 Bd1 42.Bd1 Nc4=) 40...Nc4 (40...Bb5 41.Rb1 Kc5 42.Nb2–/+) 41.Bg2 (41.Kg3 Kc5 42.Nc3 Rd7+=) 41...Kc5+= 42.Kg3 (42.Nc3+=) 42...Re7 (42...Kb5!? 43.Nc3 Kc5+=) 43.Nf2= Bc2 44.Rc1 Ne3 (44...Bb3 45.Rb1 Na5 46.Bf1=) 45.Be4 Kd4 (better is 45...Kb6 46.Bc2 Rc7 47.Bg6 Rc1 48.Bh7 Kb5+=) 46.Bc2+/– (46.Rc2?! Nc2 47.Bc2 Re3 48.Kg2 Re2+=) 46...Rc7 47.Rd1! Nd1 48.Bd1 Ke3 (48...Re7 49.Kf3+/–) 49.g5 Rc5 50.Ng4 Kd2 51.Bf3 Rb5 52.Nf6 White prepares h5 52...Rb1 (52...Ke3 53.Bg2+–) 53.Nh7 b5 (53...Ke3 54.Bg2+–) 54.h5 gh5 (54...Rg1 55.Kf2 Re1+–) 55.g6 (55.Bh5?! b4 56.Bg6 Rf1+/–) 55...Rg1 56.Bg2 h4 (56...Rc1 57.g7 Rc8 58.Nf8+–) 57.Kh2 (57.Kh2 Rd1 58.g7+–) 1–0. Timmermans,Mark (2385) – Smeets,Jan (2600), Dutch Championship Internet, 2016.

4.d3 Bg7=+ 5.Nd2 f5 (5...Nf6 6.Ngf3=+) 6.Ngf3= Nf6 (6...g5 7.Nb3=) 7.e3 0–0 (7...Nc6 8.b5 Ne7 9.Be2=) 8.Be2 h6 (8...a5 9.b5=) 9.0–0 Be6 (9...a5 10.b5=) 10.Re1 (10.d4 e4 11.Nh4 Qe8=) ½–½. Kalod,Radek (2430) – Tupy,Martin (2235), Mladi op Litomysl, 1997.

4.d4 Nc6 5.de5 Bg7 (worse is 5...Ne5 6.f4+–; worse is 5...Nb4 6.ed6 f6 7.dc7 Qc7 8.a3+/–) 6.b5 Be5 (6...Ne5 7.Bd4 Bf5 8.e3+=) 7.Qc1 (7.Qd2 Nce7+=) 7...Na5 8.Be5 de5 9.Qc3 Qd4 10.e3 Qc3 11.Nc3 Be6 12.Nf3 f6 13.Nd2 Ne7 14.Nce4 Kf7 15.Nc5 Rhd8 16.Be2 b6 17.Ne6 Ke6 18.Nb3 (18.Bf3 Rac8=) 18...Nb7 19.Bf3 Rab8 20.Bb7 Rb7 21.Ke2 c6 22.Rhd1 Rbd7 23.Rd7 Rd7 24.a4 cb5 25.ab5 Nc8 26.c5 Rd5 (26...Rc7 27.Ra6=) 27.Ra6 Ke7 28.e4 Rd7 29.f3 (29.c6 Rc7 30.Ra4 Nd6+=) 29...bc5 30.Nc5 Rd6 31.Ra5 Rd4 32.Na6 Nb6 (32...Kd6 33.Ra2=) 33.Nc7 (33.Nb8 Kd6+/–) 33...Ra4= 34.Nd5?? (34.Ra4 Na4 35.Nd5 Ke6=) 34...Kf7?? (better is 34...Nd5 35.Ra4 Nc3 36.Kd3 Na4–+) 35.Ra4+= Na4 36.Kd3 Ke6 37.Nb4 Nb6 38.Nc6 Nc8 39.Kc4 Kd6 40.Kb4 a6 ½–½. Tirado Parra,Alberto (1910) – Calderon Martin,A (1725), Madrid ESP, 2nd Gonzalez Mem, 2011.

4.e3 Ne7 5.d4 Bg7 6.de5 0–0 7.Nf3 Bg4 8.Nbd2 Qd7 (8...Nbc6!?=) 9.Be2 de5 10.h3 (10.Ne5!? Be2 11.Nd7 (worse is 11.Ke2 Qe6 12.Nd3 Bb2 13.Nb2 Rd8+=) 11...Bd1 12.Bg7 Kg7 13.Nf8+/–) 10...Bf3+= 11.Nf3 Qd1 (11...Qe6 12.0–0+=) 12.Bd1 (12.Rd1 e4 13.Bg7 Kg7+/–) 12...e4 (12...a5!?=) 13.Bg7+/– Kg7 14.Nd4 (14.Ng5 Nec6 15.b5 Ne5 16.Ne4 a6+/–) 14...b6 (14...Nbc6 15.Bc2 Nd4 16.ed4=) 15.b5 (better is 15.Bc2+–) 15...c5 16.Ne2 Nd7 17.f4 (better is 17.Bc2!? f5 18.Nf4+=) 17...ef3!–/+ 18.gf3 Ne5 19.Kf2 Nc4 20.Bb3 Nd2 21.Ba4 a6 22.Rhd1 ab5 23.Bb5 Ra5 (23...Rfd8!?–/+) 24.a4 (24.Nc3 Rd8 25.Ke2 Nd5 26.Nd5 Rd5+=) 24...Nb3 (24...Rd8!?+=) 25.Ra3 c4 26.Bc4 Nc5 27.Rda1 Rc8 28.Bb5 Nd5 29.Nd4 Nc7 30.Bc6 N7e6 31.Ne6 Ne6 32.Bb5 Ng5 33.h4 Ne6 34.Kg3 h5 35.Bd7 Rcc5 36.Be6 fe6 37.e4 Ra8 38.Rb1 Rc6 39.Kf4 Kf6 40.e5 Kf7 41.Kg5 Ra5 42.f4 Rc4?? 43.Rb6+– Ra7 44.a5 Rcc7 45.a6 Rd7 46.Rc3 Kg7 47.Rcc6 Re7 48.Re6+– Re6 49.Re6 Rc7 50.Rg6 Kf7 51.Rf6 Ke7 52.Kh5 Rc2 53.Kg6 Ra2 54.h5 Ke8 55.h6 Rh2 56.h7 1–0. typ48 – snmrat, internet, 2013.

4.e3 f5 5.d4 Bg7 6.de5 Be5 (6...Nc6!?=) 7.Be5+= de5 8.Qd8 Kd8 9.Nc3 c6 10.Nf3 Nd7 11.0–0–0 (11.Ng5 Nh6+=) 11...Ke7 12.Be2 Ngf6 Black prepares e4 13.h3 a5 14.b5 e4 15.Nd4 c5 16.Nc2 Nb6 17.Rd2 (17.Nb1!?=) 17...Be6+= 18.Na3 Rad8 19.Rhd1 Rd2 20.Rd2 Rd8 21.Rd8 Kd8 ½–½. Kreuzer,Uwe – Hanke,L, Bez.M, 1991.

4.e3 Nf6 (--> 1.b4 e5 2.Bb2 d6 3.c4 Nf6 4.e3 g6).

4.e3 h5 5.h3 (5.d4 Bg7=) 5...Nc6 (5...Nf6 6.Nf3=) 6.b5 Nb4?? (better is 6...Nb8=) 7.Qb3 (7.a3 Nc6 8.bc6 bc6+–) 7...a5 (7...Na2 8.d4 Nc1 9.Bc1 Bg7+–) 8.ba6?? (better is 8.a3+–) 8...Na6+= 9.Nf3 (9.Be5 Nf6 10.Bc3 Nc5+=) 9...Be6 (9...Nc5 10.Qd1+=) 10.Nc3 (10.d4 Bg7+=) 10...Nc5= 11.Qc2 (11.Qd1 Bd7=) 11...Bf5 (11...Bg7 12.Be2=) 12.d3 d5 (better is 12...Nf6=) 13.cd5+/– (13.Ne5?! f6 14.Nd5 c6 15.Nf6 Nf6+=) 13...Nf6 (13...f6!?+/–) 14.e4+– Bc8 (14...Bd7 15.Ne5 Bd6 16.d4+–) 15.Ne5 c6 (15...Nfd7 16.Nb5 Rh6 17.d4+–) 16.Be2 (better is 16.dc6 Qc7 17.d4+–) 16...cd5 17.ed5 Nd5 18.Nd5 Qd5 19.Bf3 Qe6 (19...Qd6+–) 20.0–0 Be7 (20...Ra2 21.Ra2 Qa2 22.Re1+–) 21.Rfe1 (better is 21.Nc6 bc6 22.Bh8 Ra3+–) 21...0–0 (21...Qd6 22.Nc4 Qd3 23.Qc1+–) 22.d4 (better is 22.Nc4 Qf5 23.Re7 Qd3+–) 22...Nd7 (22...Na6 23.Nc4 Nb4 24.Qb3+– (24.Re6?! Nc2 25.Re7 Na1 26.Ba1 Ra2+–)) 23.Ng6 (better is 23.Nc6 Qd6 24.Ne7 Kh7 25.Qb3+–) 23...Qg6 24.Qg6 fg6 25.Re7 (better is 25.Bd5 Kh8 26.Re7 Nf6+–) 25...Ra4 (25...Rf3 26.gf3 Nf6 27.h4+–) 26.d5 (better is 26.Bd5 Kh8 27.Rc1+–) 26...Nc5 (26...Rf7 27.d6 Re7 28.de7 Kf7+–) 27.Rg7 Kh8 28.Rb7 Kg8 29.Rg7 Kh8 30.Rc7 Kg8 31.Rc5 Raf4 (31...Bb7 32.a3 Rf7 33.Re1+–) 32.d6 (better is 32.Rc7 R4f7 33.d6 Rc7 34.dc7 Rf3 35.gf3 Bh3 36.a4+–) 32...Bh3 (32...Rf3 33.gf3 Bh3 34.Rc7+–) 33.Rc7 (33.Bd5!? Kh7 34.Rc7 Kh6 35.Bg7 Kg5 36.Bf8 Rf8 37.gh3 Rd8+–) 33...Bg2 (33...Rf3 34.Rg7 Kh8 35.gf3+–) 34.Rg7 (34.Bg2 R4f5 35.Rg7 Kh8+–) 34...Kh8 35.Rg6 (better is 35.Bg2 Rb4 36.Be5 Rf5+–) 35...Kh7 36.Rg7 Kh6 37.Bg2 Rf2 38.Bd4 (better is 38.Be4 Rb2 39.Rg6 Kh7 40.Rg2 Kh6 41.Rb2 h4+–) 38...R2f5 (38...Rd2 39.Be3 Kg7 40.Bd2+–) 39.Rg3 (39.Re1 R8f7 40.Re6 R5f6 41.Rf6 Kg7 42.Rf2 Rf6 43.Bf6 Kf7 44.d7 h4 45.Bh4 Kg6 46.Be4 Kh5 47.d8Q Kg4 48.Qg5 Kh3 49.Qg3) 39...h4 40.Be3 (40.Bg7!? Kh5 41.Bf8 hg3+–) 40...Kh5 41.Rg7 h3 42.Rh7 (42.d7 Kh4 43.Rd1 h2 44.Kh2 Re5 45.Rh1 Rf1 46.d8Q Kh5 47.Qh8) 42...Kg4 (42...Kg6 43.Rh3 Kf6 44.Rd1+–) 43.Bh3 Kf3 44.Bf5 Rg8 45.Kf1 Rg2 46.Rh3 Rg3 47.Rg3 1–0. GuestHYVZ – GuestHTLT, freechess.org, 2016.

4.e3 Bh6 5.Nf3 f5 6.d4 e4= 7.Nfd2 Nf6. ludger – geebs (2100), net–chess.com, 2005.

4.e4 Nf6 A) 5.Nc3 A1) 5...Bg7 6.a3 (6.Be2 Nc6 7.b5 Nd4 8.Nf3 Nh5 9.Nd4 ed4+=; 6.Nf3) 6...Be6 7.Nf3 Nc6 8.Be2 a5 9.b5 Nd4=; A2) 5...Nc6 6.a3 a5 7.b5 Nd4 8.Nf3 Bg4 9.Be2 Ne2+=; B) 5.Qc2 Bg7 6.Nf3 h6 7.Be2 Nh5 8.0–0 Nf4 9.d3 Qf6=.

4.Nf3 Nf6 5.e3 Bg7 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 d6 5.e3 e5).

4.Nf3 Bg4 5.e3 Nd7 6.h3 Be6 7.d4 Bg7 8.Bd3 f5 9.d5 Bf7 10.Nbd2 Ngf6 11.e4 f4 (11...fe4!? 12.Ne4 Ne4 13.Be4 a5=) 12.0–0+= h5 13.c5 a5 (better is 13...dc5!? 14.Ne5 cb4 15.Nf7 Kf7+/–) 14.cd6+– cd6 15.Nc4 Qe7 16.Na5 Nb6 17.Bb5 Kf8 18.Qe2 Bh6 19.Nh4 (19.Rfc1 g5 20.h4 g4+/–) 19...Nfd5 20.ed5 Qh4 21.Nb7 Qe7 (better is 21...f3 22.Qf3 Qb4+–) 22.Nd6! Bg7 (22...Qd6 23.Be5 Double attack (23.Be5 Decoy)) 23.Nf7 Kf7 24.a3 Na4 (24...e4 25.Bg7 Kg7+–) 25.d6! Qb7 (25...Qd6 26.Rad1 Decoy) 26.Rac1 Kg8 (26...Rhc8 27.d7 Rc1 28.Bc1 Nb6+–) 27.Rc7 Qb8 28.Qc4 Kh7 29.Rg7! Kg7 (29...Kg7 30.Be5 Mate attack) 30.Be5 Kh6 (30...Kf8 31.Qf4 Kg8 32.Bc4 Kh7 33.Qf7 Kh6 34.Bg7 Kh7 35.Bf8) 31.Qf4 Kh7 32.Qf7 Kh6 33.Bg7 (33.Bg7 Kh7 34.Bf8) 1–0. Fournier,Frederic (1990) – sungreen, echecsemail.com Defi, 2003.

4.Nf3 Bh6 5.e3 (5.e4 Nf6=) 5...Nf6 6.d3 (6.d4 e4 7.Nfd2 0–0+=) 6...0–0 (6...Na6 7.b5 Nc5 8.Be2=) 7.Be2 Nc6 (7...Bg7 8.0–0=) 8.b5+= Ne7 9.0–0 Nf5 (9...a6 10.a4=) 10.Nc3 (10.e4 Ng7+=) 10...Ng7 (10...a6 11.e4 Ng7 12.Re1+=) 11.d4 c5? (better is 11...e4!? 12.Nd2 Qe7+=) 12.de5+– Nd7? (better is 12...de5 13.Ne5 Be6+–) 13.ed6 Nf6 (13...a6 14.Nd5+–) 14.Nd5 Ne4 (14...Nd5 15.Qd5 (15.cd5?! Re8+–) 15...Nf5 16.Rfd1+–) 15.Ne7 Kh8 16.Nc8 Rc8 17.d7 (17.Qd5 Nd6 18.Rfd1 Ndf5 19.Qb7 Qb6+–) 17...Rc7 18.Qd5 Nf6 19.Bf6 Qf6 20.Ne5 Ne6 21.Ng4 Qg7 22.Nh6 Qh6 23.Bg4 Qg7 24.Qd6 (24.Be6?! fe6 25.Qe6 Qd7+–) 24...f5 25.Qe6 fg4 (25...Qd7 26.Qd7 Rd7+–) 26.Rad1 Rd8 (26...h5 27.f3 g3 28.hg3+–) 27.Qe8 (27.Qe8 Qf8 28.Qe5 Kg8 29.Qc7+–) 1–0. Wall,Bill – Laprade,Rudy, Palm Bay, FL, 2004.

4.f4 ef4 5.g3 (5.Bh8 Qh4 6.g3 fg3 7.Bg2 gh2 8.Kf1 hg1Q 9.Kg1 Qc4 10.Rh7 Qb4 11.Qb3 Qb3 12.ab3+=) 5...fg3 6.Bh8 Qh4 7.Bg2 gh2 8.Kf1 hg1Q 9.Kg1+=.

4.g3 Nc6 5.Bg2 =+.

4.d4 f6

5.d5 Bd7 (5...Ne7 6.Nf3=) 6.e4 Bg7 7.Bd3 Ne7 8.Nf3 0–0 9.0–0 Bg4 (9...a5 10.a3=) 10.h3 Bf3 (10...Bd7 11.Nc3+=) 11.Qf3 (worse is 11.gf3 a5+=) 11...Nd7 12.Nc3 f5 13.Qe2 f4 (13...a5 14.a3+=) 14.Rac1 (14.Qf3 c5 15.a3 a6+/–) 14...a6 (14...a5 15.a3+=) 15.Na4 (15.Qf3 a5 16.a3 ab4 17.ab4 c5 18.dc6 bc6+/–) 15...b6 (15...f3 16.gf3 Nc8 17.c5=) 16.f3 (16.Qf3 c5 17.bc5 Nc5 18.Nc5 bc5+/–) 16...Bf6 (16...c5 17.dc6 Nc6 18.Qd2+=) 17.Bc3 (17.c5 b5 18.c6 ba4 19.cd7 Qd7+=) 17...Bh4 (17...c6 18.dc6 Nc6 19.Rfd1+=) 18.Be1 (18.c5!?+=) 18...Be1= 19.Rfe1 Nf6 (19...c5 20.bc5 bc5 21.Nc3=) 20.Qf2 White intends c5 (20.c5 b5 21.Nc3 dc5 22.bc5 Nd7+=) 20...Rf7 (20...a5 21.b5=) 21.c5+= Qe8 (21...b5 22.Nc3=) 22.cd6 cd6 (better is 22...Nc8!? 23.Nc3 Nd6+=) 23.Nb6+– Rb8 24.Ba6 (24.a3 Qd8 25.Nc4 Qd7+–) 24...Qd8+/– 25.Na4 (25.Nc4 Rb4 26.a3 Ra4+–) 25...Rb4 26.Rc4 Rc4 (26...Qa5 27.Rb4 Qb4 28.Nb2+/–) 27.Bc4 Nh5 (27...Qa5 28.Nb6+/–) 28.Rb1 Qa5 (28...Nc8 29.Nc3+/–) 29.Nb6 (29.Bb5 Qc7+/–) 29...Ng3 30.Nd7 (30.a4 h6+/–) 30...Kg7 (30...Qc7 31.Nb6+/–) 31.Ne5 (31.Bb5 Qc7 32.Nb6 Qa7+/–) 31...de5 32.d6 Nc6 33.Bf7 (33.Qb6 Qa4 34.Bf7 Kf7 35.Qc7 Ke6+–) 33...Kf7+= 34.Qc2 Qa7 35.Kh2 Qd7 36.Rc1 (36.Rb6 Nd4 37.Qc5 Nde2+=) 36...Nd4+= 37.Qc7 Do you see the mate threat? 37...Ke6 38.Qc4 (38.Rb1 Nde2+=) 38...Kf6 39.Qd5 (39.Qc5 Nge2 40.Qc7 Ke6+/–) 39...Nde2 (39...Qe6 40.a4=) 40.Ra1 Nd4 41.a4 Nge2 (better is 41...Qa7 42.Qa2 Nge2=) 42.a5 Nc3 43.Qc5 (43.Qa8 Qd6 44.Qh8 Kg5+–) 43...Ncb5= 44.a6 (better is 44.Qb6!? Nc2 45.Rc1+=) 44...Nb3–/+ (44...Qd6?? 45.Qd6 Nd6 46.a7+–; 44...Nd6? 45.a7 Ne6 46.Qb6+–) 45.Qg1 (45.a7 Nc5 46.a8Q Nd6 47.Qh8 Qg7–/+) 45...Na1 46.Qa1 Ke6 (better is 46...Qa7!?–/+) 47.Qa2= Kf6 48.Qd5 (48.Qa1 Qa7–/+ (48...Nd6?? 49.a7+–)) 48...Na7 (48...Nd4 49.Qa5 Nc6 50.Qd5+=) 49.Qa8 (49.g4 Nc6=) 49...Nc6+= 50.h4 (50.Qg8 Qd6 51.Qh8 Ke6 52.Qe8 Kf6 53.Qh8 Ke6 54.Qe8 Kf6 55.Qh8=) 50...Qd6 (better is 50...Ke6–+) 51.Qh8= Ke6 52.Qg8 (better is 52.Qe8!? Kf6 53.Qh8 Ke6 54.Qe8 Kf6 55.Qh8=) 52...Kd7–/+ 53.Qh7 Kc8?? (53...Ne7 54.Qh8 Qa6 55.Qe5 Qd6 56.Qd6 Kd6=) 54.Qb7+= Kd8 55.a7 Na7 56.Qa7 Qf6 (56...Ke8 57.Qa8 Ke7 58.Qb7 Kf6 59.g4 fg3 60.Kg3+/–) 57.Qb8 Kd7 58.Qb7 Ke8 59.Qc8 Kf7 (59...Ke7 60.Qc5 Ke8 61.Kh3+/–) 60.Qg4 (60.Qd7 Kg8 61.Kh3 Kf8+/–) 60...Kg7 (60...Qd6 61.h5+=) 61.g3 (61.Qg5 Qd6+/–) 61...fg3 62.Kg3 Kh6? (better is 62...Qb6!? 63.Kh3 Qb5+/–) 63.f4+– ef4 (63...Qb6 64.Qg5 Kh7 65.fe5 Qg1 66.Kf3 Qf1 67.Ke3 Qh3 68.Kd2 Qd7 69.Ke2 Qd4+–) 64.Qf4 Qf4 (64...Kg7 65.Qf6 Kf6 66.Kf4+–) 65.Kf4 Kh5 (65...Kh7 66.Ke5 Kg7+–) 66.e5 Kh4 67.e6 g5 68.Kf5 g4 69.e7 g3 (69...Kg3 70.e8Q Kf3 71.Qe4 Kg3 72.Qg4 Kf2 73.Ke4 Kf1 74.Qf3 Kg1 75.Qe2 Kh1 76.Kf3 Kg1 77.Qg2) 70.e8Q g2 (70...Kh3 71.Qe1 Kg2 72.Kf4 Kh2 73.Qd2 g2 74.Kf3 Kh1 75.Qg2) 71.Qe3 1–0. Schirmer,Michael – Heselmeyer,W, Bezirkseinzelmeister, 1992.

5.e3 b6 6.Nf3+= Bb7 7.de5 (7.Nc3 ed4 8.Nd4 Qd7+/–) 7...fe5 (7...de5!? 8.Qd8 Kd8 9.Ne5 Bb4 (9...fe5? 10.Be5 Nc6 11.Bh8+–) 10.Nd2 Ke8+= (10...fe5? 11.Be5 Ke7 12.Bh8+–)) 8.Ne5!+/– Bg7 (8...de5 9.Qd8) 9.Nc6 Qd7 10.Bg7 Qg7 11.Nd4 c5 12.bc5 dc5 13.Ne6 Qe7 14.Nf4 Nf6 15.Be2 Qe5 16.Nd2 0–0 17.0–0 Nbd7 18.Bf3 Bf3 19.Nf3 (19.gf3?! Rad8=) 19...Qe4 20.Qa4 Ne5 21.Ne5 Qe5 22.Rad1 Rf7 23.Rfe1 Raf8 24.f3 g5 25.Nd5 g4 26.f4 Qe4 27.Qb3 Nh5 28.Nc3 Qg6 (29.Rd5 h6+/–). ARMAGEDON_8 – jartug, ChessWorld.net, 2003.

5.e3 ed4 6.ed4 d5 7.c5 =.

5.Nf3 d5 =.

4.e4 Bg7

5.Be2 Nf6 6.Nc3 Nc6 7.b5 Nd4 8.d3 0–0 9.Nf3 Ne6 10.g3 (10.0–0 a6=) 10...Nc5 11.a4 a5 12.Ba3 Ne6 13.Bc1 b6 14.Nd5 Nd5 15.cd5 Nc5 16.Be3 f5 17.Bc5 (17.Qc2 f4 18.Bd2 Bg4=) 17...dc5+= 18.Nd2 Kh8 19.Qb3 Re8 (19...Qf6 20.h4+=) 20.h4 Qf6 21.Rc1 Bh6 Black plans f4 22.Rc4 Bd2 23.Kd2 f4 24.Qd1 Rf8 25.Rh2 f3 26.Bf1 h5 27.Qc1 Kh7 28.Rc2 Bd7 29.Bh3 Rad8 30.Qf1 Qe7 31.Kc3 (31.Ke1 Bh3 32.Qh3 Rf7=) 31...Bg4 (31...c4 32.dc4 Qb4 33.Kd3 Bh3 34.Rh3 Qa4 35.Qc1+=) 32.Kc4 (32.Bg4 hg4 33.h5 Rh8=) 32...Qd7 (32...Bc8!?+=) 33.Bg4= Qg4 34.Qa1 (34.Qh3 Qh3 35.Rh3 Kg7=) 34...Rfe8 35.Rc1?? (35.Kb3 Qd7+=) 35...Rd6?? (better is 35...Rd5! 36.Kc3 Rd4–+) 36.Re1? (better is 36.Kb3+=) 36...Kg7 ½–½. Kulbachny,Vladimir (1975) – Magomedov,Said, Moscow Region–ch op, 2004.

5.Nf3 Ne7 (5...Nf6 6.Qc2 (6.Bd3 Bg4 7.h3 Be6 8.0–0 0–0 9.Nc3 Nh5=) 6...a5 7.b5 0–0 8.Nc3 Be6 9.Rd1 Re8=; 5...f5 6.Nc3 (6.ef5 Bf5 7.Be2 Nh6 8.Qa4 Nc6 9.b5 Ne7=) 6...Nc6 7.b5 Nd4 8.Bd3 Nf6 9.ef5 Nf5=) 6.d4 Nd7 (6...ed4 7.Bd4 Bd4 8.Qd4 0–0 9.Be2 Nec6=) 7.d5 (7.Be2 Nc6 8.Bc3 0–0 9.d5 Ne7=) 7...0–0 (7...f5 8.Nc3 0–0 9.Bd3 a5=) 8.Bd3 f5 9.Nc3 (9.Nbd2 Nf6=) 9...Nf6 (9...a5=) 10.h3 a5 11.b5 b6 (11...h6 12.0–0=) 12.Qc2 Bh6 13.Bc1 f4 14.Bd2 Rf7 15.a4 Nd7 16.Bc1 Qf8 17.Ba3 Nf6 18.0–0–0 Nh5 19.Kb1 Bd7 20.Be2 Qg7 21.Rdg1 Raf8 22.Qd3 g5? (better is 22...Re8+=) 23.Ne5!+– Qe5 (23...de5 24.Bh5; 23...Qe5 24.Bh5) 24.Bh5 Ng6 25.Bb2 Qe7 26.Ne2 Bg7 27.Nd4 Be5 28.Nf3 Bb2 29.Kb2 (29.Bg6 hg6 30.Kb2 Re8+–) 29...Rg7 30.Re1 Ne5 31.Ne5 de5 32.Qc3 g4 33.hg4 Bg4 34.Reg1 Qc5 35.Qc2 (worse is 35.Qe5 Bh5 36.Qh5 Qb4 37.Kc1 Qc4 38.Kb2 Qa4+=) 35...Bh5 36.Rh5 Rf6 37.Rh2 (better is 37.Rh3!?+/–) 37...Rfg6= 38.Kc1 (better is 38.Ka2!?=) 38...Rg3–/+ 39.Kd1?? (39.Rd1 Ra3 40.Rd3 Rd3 41.Qd3 Qf2 42.d6 Qg1 43.Qd1 Qe3 44.Qd2 Qa3 45.Qb2–+) 39...Ra3 (better is 39...Qd4 40.Ke2 Rc3–+) 40.Ke2?? (better is 40.Rgh1 Qd4 41.Ke2–+) 40...f3! 41.gf3 Rg1 42.Rh4 Rga1 0–1. Steche,Roland – Nitsche,Werner, corr DDR–Cup7 sf05, 1981.

5.g3 f5 6.Bd3 Nc6 (6...fe4 7.Be4 Nf6 8.Bg2+=) 7.Bc3 (7.ef5 Qe7 8.Nc3+= (8.fg6? e4 9.Qb3 ed3 10.Kd1 hg6–+)) 7...Nf6 8.Qe2 fe4 9.Be4 Ne4 10.Qe4 Bf5 11.Qe3 d5 12.Be5?? (better is 12.b5 d4 13.Qe2–+) 12...Ne5–+ 13.Nc3 (13.d4 Be4 14.de5 Bh1 15.cd5–+) 13...d4 14.Qe2 Bd3 15.Qd1 dc3 16.dc3 Nf3! 17.Nf3 (17.Qf3 Bc3 Mate attack; 17.Nf3 Bc3 Double attack) 17...Bc3 18.Nd2 Qe7 19.Qe2 Qe2 0–1. Lang,Ferdinand – Grabner,Helmut, EU/II/GT/39 corr ICCF, 1973.

4.Nc3 Bg7

5.a3 Nc6 6.b5 (6.Nf3 e4 7.b5 ef3 8.bc6 fe2 9.Ne2 Bb2=; 6.e4 f5 7.Nf3 Nf6 8.Bd3 0–0 9.0–0 fe4=) 6...Nd4 7.e3 Nf5 8.Nf3 e4 9.Ng1 Nf6=.

5.Qc2 Nc6 6.a3 Nd4 7.Qd3 f5 8.e3 Ne6 9.Nh3 a5 =.

5.Qc2 Ne7 6.g3 (6.Nf3 0–0 7.e4 Nbc6 8.a3 Nd4 9.Nd4 ed4=; 6.e3 0–0 7.Be2 Be6 8.Nf3 Nd7 9.0–0 Nb6=; 6.a3 Nbc6 7.e3 0–0 8.Be2 f5 9.b5 Na5=) 6...0–0 (6...Nbc6 7.Qa4 0–0 8.Bg2 a6 9.Nf3 Be6+=) 7.Bg2 Nbc6 8.a3 (8.b5 Nd4 9.Qa4 Ne6+=) 8...Nd4 9.Qd1 c6 10.e3 Ne6 11.Nge2 Re8 12.0–0 Nf5 13.Qc2 Qe7 14.Rad1 h5 15.d3 h4 16.Bc1 hg3 17.Ng3 (17.fg3!? Bh6 18.Kf2=) 17...Nh4+= 18.f4? (better is 18.f3+=) 18...ef4–+ (18...Ng2?! 19.Qg2 ef4 20.Nge2–/+) 19.ef4 Ng2 (better is 19...Nd4!? 20.Qf2 Bg4–+) 20.Kg2–/+ Nd4 21.Qf2 Qh4 22.Kh1 (22.Nge4 Bh3 23.Kh1 Qf2 24.Rf2 Rad8–/+) 22...Bh3 (22...Bg4!?–+) 23.Nge4–/+ Qh5 24.Nd6 Bf1 25.Rf1 Re7 26.Nd1? (better is 26.Nce4–/+) 26...Re2–+ 27.Qg3 Nf3! 28.Rf3 (28.Rf3 Rh2; 28.Qf3 Qh2) 28...Rh2!! 29.Kg1 (29.Qh2 Qf3) 29...Rh1 30.Kf2 Rd1 31.Be3 (31.Qh3 Qh3 32.Rh3 Rc1 33.Nb7 Bd4 34.Kf3 Re8–+) 31...Qh1 (worse is 31...Rd3 32.f5 Ra3 33.Kg2–+) 32.Ke2 Ra1 33.Bd2 Bd4 34.Be1 Ra2 35.Kd1 Ra1 (35...Bc3 36.Re3 Ra1 37.Kc2 Be1 38.Re1 Re1 39.Kb3–+) 36.Ke2 Ra2 37.Kd1 Bf2! 38.Rf2 (38.Rf2 Ra1) 38...Ra1 39.Ke2 Re1 (39...Qe1 40.Kf3 Ra3 41.Kg2–+) 40.Kd2 Rc1 (40...Ra1 41.Ke3 Qe1 42.Kf3 Ra3 43.Kg2–+) 41.Ke3? (better is 41.Rh2 Qd1 42.Ke3 Qe1 43.Qe1 Re1 44.Re2 Re2 45.Ke2–/+) 41...Qe1–+ 42.Kd4 (42.Kf3 Rd1 43.Kg4–+) 42...Rd8 43.c5 Qc3 44.Ke4 Re1 45.Kf3 Qd3 46.Kg2 (46.Kg4 Rd6 47.Qd3 Rd3–+) 46...Rg1! (46...Rg1 47.Kg1 Qg3 48.Kf1 Qa3–+) 0–1. Zickau,Norbert – Goldblat,Michael (2235), Duesseldorf–ch, 1999.

5.e4 Nc6 6.b5 (6.a3 f5 7.Nf3 Nf6 8.Bd3 0–0 9.0–0 fe4=) 6...Nd4 7.Nf3 f5 8.Bd3 Nf6 9.ef5 Nf5=.

5.Nf3 e4+= 6.Ng1 f5 (6...Bf5 7.e3 (7.h3+= Nc6 8.g4 Be6 9.Qc2 Nb4 10.Qb3 a5 11.Rb1 b5 12.Nb5 Bb2 13.Rb2=) 7...Nc6 8.Nge2 Nb4 9.Ng3 Ne7 10.Qb3 Nd3 11.Bd3 ed3 12.Nd5 Be5 13.f4+/–) 7.d4= ed3 8.Qd3 (8.Nf3 de2 9.Be2 Nc6 10.a3 Nf6 11.Nd5 0–0 12.b5 Na5 13.0–0+=) 8...Nc6 9.Qd2 Nf6 (worse is 9...Nb4 10.Nd5 Bb2 11.Qb2 Nd5 12.Qh8+= Ndf6 13.Nf3+=; 9...Be6 10.Nd5 Nf6 11.Nf3 Ne4 12.Qc2 Bb2 13.Qb2=) 10.Nd5 Ne5 11.e3 Ne4 12.Qc2 c6 (12...0–0 13.Be2+=) 13.Nc3 0–0 14.Nf3 Ng4 15.Nd1 (worse is 15.Ne4 Bb2 16.Qb2 fe4–/+) 15...Bb2 16.Qb2 Qe7 17.Bd3 f4 18.Be4 Qe4 19.Qd4 Bf5 20.h3 (20.Qd6 fe3 21.fe3 Ne3–+) 20...Nh6 (20...Qd4 21.ed4 Rfe8 22.Kd2+=) 21.Nc3 Qd4 22.ed4 a5 23.b5 Bd3 24.bc6 bc6 25.Kd2 (better is 25.c5!? dc5 26.0–0–0 cd4 27.Nd4=) 25...Bc4–/+ 26.Rhc1 Nf5 27.Na4 (27.a3 Rab8–/+) 27...Bd5 28.Nb6 Bf3 29.gf3 Ra6 30.Rc6 (better is 30.Rab1 Nd4 31.Nd7–+) 30...Nd4 31.Rd6 Nf3 (better is 31...Nb5!? 32.Rc6 Rd8 33.Ke1 Nd4–+) 32.Ke2 (32.Kd3 Re8 33.Kc4 Re2 34.Rd8 Kf7–+) 32...Ng5 33.h4 Ne4 34.Re6 (34.Rc6!? f3 35.Ke3 Nf6–+) 34...f3 35.Ke3 Nf6 (better is 35...Nc3 36.Rc6 Rb6 37.Rc3 Re6 38.Kd3 Re2–+) 36.Kd3? (36.Kd4 Ng4 37.Rf1 Rf4 38.Kc5 Rb4–+) 36...Ng4 (better is 36...Nd5! 37.Rd6 Nb6 38.Rc1–+) 37.Kc4 (37.Rf1 Rd8 38.Ke4 Rd2–+) 37...Nf2 38.Kb5 Ra7 39.Nc4 Rd7 (39...Rb7 40.Ka5 Nd3 41.Rb6 Ra7 42.Ra6 Ra6 43.Ka6–+) 40.Kc5 (40.Rf1 Nd3 41.Na5 f2–+) 40...Ng4 41.Nb6 (41.Ne3 Ne3 42.Re3 Rd2–+) 41...Ra7 0–1. Pandurevic,Miro (2280) – Palkovi,Jozsef (2395), Riviera IM, Opatija CRO (7), 2003.

5.e3

5.e3 (--> 4.e3 Bg7 5.Nc3).

5.e3 Nf6 6.Nf3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 d6 5.e3 e5 6.Nc3).

4.d4= Nd7

5.e3 Ngf6 6.Nc3=.

5.de5 Ne5? 6.f4+–.

5.de5 Bg7 6.Nf3 (6.Qa4 Ne7 7.Nc3 Be5 8.Nf3 Bg7 9.e4 0–0 10.Bd3=) 6...Ne7 7.Qd2 (worse is 7.ed6 Bb2 8.de7 Qe7–/+ 9.Nbd2 Ba1 10.Qa1–/+; 7.e4 Nc6 8.Nd4 Nd4 9.Bd4 Be5 10.Nc3=) 7...de5 8.Nc3 (8.Na3 c5 9.0–0–0 Nc6 10.Nb5=) 8...0–0 9.Rd1 Nf5 10.e3 (10.e4=) 10...c6 11.Ne4 Qe7 12.c5 Nf6 13.Nf6 Bf6 14.Bc4 (14.Qc2 Bg7+=) 14...Be6 (14...a5 15.a3=) 15.Qc2 Rad8 16.0–0 (16.Be5? Bc4 17.Rd8 Rd8 18.Qc4 Be5 19.Ne5 Qe5–+) 16...Rfe8 (16...Bc4!? 17.Qc4 Bg7+=) 17.Be5+/– Be5 18.Ne5 Bc4 19.Nc4 Qg5 20.Rd8 Rd8 21.Rd1 Re8 22.Nd6 Nh4?? (better is 22...Nd6 23.cd6 Qg4+–) 23.f4 (23.f4 Nf3 24.Kf2 Qh4 25.Kf3 Qh5 26.Kf2 Qh4 27.Kg1 Re3 28.Qd2+–) 1–0. Buczinski,Henryk – Marks,J, Lublin Poland, 1978.

5.Nf3 Ngf6 6.e3 ed4 7.Nd4 Bg7 8.Be2 0–0 9.0–0 Ne5 =.

5.e3 Bg7

6.Nf3 ed4 7.ed4 Qe7 8.Be2 +=.

6.Nf3 e4 7.Nfd2 f5 8.Nc3 Ngf6 9.Be2 c6 10.Qb3 Qe7 11.b5 c5 12.d5 0–0 13.a4 f4 14.0–0–0 (better is 14.ef4!? e3 15.fe3 Qe3 16.g3+=) 14...fe3=+ 15.fe3 Bh6 16.Nf1 Ne5 17.h3 b6 18.Rd2 Bd7 19.Nd1 (19.Qc2 a6=+) 19...a6–/+ 20.Nf2 (20.Nc3 Bg7–/+) 20...ab5 21.ab5 Ra7 22.Nh2 Nd3 (23.Bd3 ed3=+; 22...Bg7 23.Kd1–/+). Fedulow,W – Koponen,Erkki, corr I ICCF–CUP/198, 1973.

6.Nf3 e4 7.Nfd2+= f5 8.Nc3 (8.Be2 Ngf6=) 8...Nh6 (8...Ngf6 9.Be2+=) 9.Qb3 (9.Be2 0–0+=) 9...c6 (9...a5 10.ba5 Ra5 11.Be2+=) 10.Ne2 (10.Be2 Qg5 11.0–0 0–0+=) 10...Nf6 (10...Qh4 11.Nf4=) 11.h4 (11.Rd1 0–0=) 11...Be6 (11...a5 12.ba5 Qa5 13.Bc3=) 12.Nf4 Bf7 13.a4 White intends b5 (13.Be2 0–0=) 13...0–0 (13...d5 14.Rc1=) 14.b5 (14.Be2 d5=) 14...Nhg4 (14...a6 15.Be2=) 15.Be2 Qe7 16.a5 c5 (16...Bh6 17.Rb1=) 17.d5 Rae8 18.a6 (18.0–0 Ne5+=) 18...b6= 19.Nf1 (19.0–0 Ne5+=) 19...Ne5 (19...Bh6 20.Qc2=) 20.Ng3+= White plans h5 20...Nfg4 (better is 20...h5!?+=) 21.h5+/– Qg5 22.Nh3 (22.hg6 hg6 23.Rd1 Nh6+/–) 22...Qf6 (22...Qe7 23.hg6 hg6 24.Rd1+/–) 23.hg6 hg6 (23...Qg6 24.Nf4 Qg5 25.Rd1+/–) 24.0–0–0 (24.Ne4 fe4 25.Ra2–+) 24...g5? (better is 24...Qh4 25.Rdf1 Qe7+/–) 25.Bg4+– fg4 26.Ne4 Nd3 27.Rd3 Qb2 28.Qb2 Bb2 29.Kb2 Re4 30.Ng5 Rc4 31.e4 (31.Rd2 Be8+/–) 31...Be8+= 32.f3 Bb5 33.Rdd1 (33.Rb3 Ba4 (33...Ba6? 34.Ra1 Bc8 35.Ra7+–) 34.Rc3 Rc3 35.Kc3 Rf6+=) 33...Ba4 (33...Rb4!? 34.Kc3 Be2= (worse is 34...Ba6 35.Rh6 Rc4 36.Kb2 Rb4 37.Ka3+/–)) 34.Rdg1 (34.Rc1 Rb4 35.Ka1+=) 34...Rc2 (34...Rb4 35.Ka3 Rf6 36.Rh4+= (worse is 36.fg4 Bc2+=)) 35.Kb1 (35.Ka3 b5 36.Rh6+/– (36.fg4 Rff2 37.Rh8 Kh8 38.Rh1 Kg8 39.Rh8 Kh8 40.Nf7 Kg7 41.Nd6 Rc3)) 35...c4 (35...Rf6!? 36.Rh4 Rg6 37.Rg4 b5+/–) 36.Rh4 (36.Rh6 Kg7 37.Rd6 Rh8+–) 36...c3 (36...Rf6 37.Ne6 (37.Rg4?! Rg6+/–) 37...Rg6 38.Rgh1+–) 37.Rg4+/– Rc8?? (37...Rb2 38.Ka1 Bb3 39.Ne6 Kf7 40.Rg7 Kf6=) 38.Rh1 Rc4 (38...Rg2 39.Rg2 Rf8 40.Ne6 Kf7 41.Rg7 Ke8 42.Rhh7 Rf7 43.Rf7 c2 44.Kc1 Bb3 45.Re7) 39.Ne6 Kf7 40.Rf4 (40.Rg7 Kf6 41.Rh6 Ke5 42.Rg5) 40...Kg6+– 41.Nf8 (better is 41.g3 Rb4 42.Ka1+–) 41...Kg7= 42.Ne6 (42.Ne6 Kg6 43.g3 Rb4 44.Ka1+–) 1–0. Alekseev,Vadim (2355) – Sakaev,Konstantin (2560), Petrov mem St Petersburg, 1996.

6.Nf3 e4 7.Nfd2+= f5 8.Be2 Ngf6 =.

5.e4 Ngf6

6.Qc2 ed4 7.Bd4 Bg7 8.Nf3 0–0 9.Bd3 a5 10.b5=.

6.Nd2 ed4 7.Bd4 Bg7 8.Ngf3 c5 9.bc5 dc5 10.Bc3=.

6.Bd3 ed4 7.Bd4 c5 8.bc5 dc5 =.

6.Bd3 ed4 7.Bd4 Ne5 8.Nf3 Bg4 9.a3 a5 10.Be2=.

5.de5 de5

6.a3 a5 7.b5 Ngf6 8.Nc3 Bd6 9.e4 Nc5 10.Qc2=.

6.a3 Bg7 7.Nf3 Qe7 8.e3 Ngf6 9.Be2 0–0 10.0–0 a5 A) 11.b5 Rd8 (11...c6 12.Qc2 e4 13.Nd4 c5 14.Nb3 Rd8 15.Nc3 a4=; 11...e4 12.Nd4 Ne5 13.Nc3 Bg4 14.Ne4 Ne4 15.Bg4 Nc4=) 12.Qc2 e4 13.Nd4 Nc5 14.h3 g5 15.Nc3 g4=; B) 11.Qc2 ab4 12.ab4 Ra1 13.Ba1 Qb4 14.Ne5 Ne5 15.Be5 Bf5=.

6.a3 Bg7 7.Nf3 Qe7 8.e3 Ngf6 9.Be2 0–0 10.0–0 Rd8 11.Qc2 (11.c5 Nc5 12.Qc2 e4 13.Qc5 Qc5 14.bc5 ef3 15.Bf3 g5=) 11...c5 12.Bc3 a5 13.ba5 e4 14.Nfd2 h6 15.Rd1 Ne5=.

6.a3 Bg7 7.Nf3 Qe7 8.e3 Ngf6 9.Be2 0–0 10.0–0 e4 11.Nd4 c5 12.Nb5 a6 13.Qd6 Qd8 14.N5c3 Re8 15.Nd2 b6=.

6.a3 Bg7 7.Nf3 Qe7 8.e3 Ngf6 9.Be2 0–0 10.0–0 Re8 11.Nc3 (11.c5 a5 (11...e4 12.Nd4 a5 13.Nc3 Rd8 14.Qc2 Nb8 15.Rfd1 Bd7+=; 11...Rd8 12.Qc2 e4 13.Nd4 Nd5 14.c6 N7f6 15.Rd1 Rb8+=) 12.Nbd2 (12.Nc3 Nb8 13.Bc4 Bg4 14.Nd5 Nd5 15.Bd5 c6=) 12...e4 13.Nd4 Nd5 14.Qa4 Rd8 15.Rad1 N7f6=) 11...b6 (11...Rd8 12.e4+= c6 13.Qc2 Nh5 14.Rad1 Nf4 15.Rd2 Bh6+=; 11...e4 12.Nd2 a5 13.c5 Nb8 14.Qa4 Bd7 15.Qc2 Na6=) 12.Nd5 (12.Nb5 e4 13.Nc7 ef3 14.Bf3 Rb8 15.Ne8 Qe8+/–) 12...Nd5 (12...Qd6 13.Nf6 Qf6 14.Qa4 a6 15.Rad1 Qe6+/–) 13.Qd5 (13.cd5 a5 14.Qb3 Bb7 15.Rfd1 ab4=) 13...Rb8 14.Rad1 (14.Rfd1 e4 15.Nd4 Bb7=) 14...Nf8 (14...c5 15.Qd2= e4=; 14...a5 15.Qd2 c5=) 15.Qd2+= (15.e4 Bb7+=) 15...Bb7 (15...c5+=) 16.Qc3 h6 17.Rd2 c5 18.b5 g5 19.Rfd1 g4 20.Ne1 Qg5 21.f3 (21.Qc2 Ra8+/–) 21...h5 (21...g3 22.e4=) 22.Rd6 (22.e4 Qg6+=) 22...Ne6= 23.Qb3 Re7 (23...gf3 24.Nf3 (worse is 24.Bf3 e4 25.Bg7 ef3–/+) 24...Bf3 25.Bf3+/–) 24.Bc1 Rbe8 25.fg4 (25.e4 Nf4 26.Qe3 f5+=) 25...hg4= 26.g3 (26.Qa4!?=) 26...Qh5+= 27.Ng2 Bf6 (27...f5!?+=) 28.Qc2= Kg7 29.Bd3 (better is 29.h4=) 29...Ng5–+ 30.Nh4 Nh3 31.Kf1 Bh4 32.gh4 e4 (32...g3 33.hg3 Qf3 34.Ke1 Qg3 35.Kd2–+) 33.Bb2 (33.Qb2!? Kh7 34.Bb1+=) 33...Kg8 34.Qc3?? (better is 34.Be2 Qh4 35.Bg4 Qg4 36.Qg2–/+) 34...Qf5 0–1. Grosmelder,Karl – Beketov,Viktor, Moscow–ch sf Silent, 1998.

6.Qb3 a5 7.a3 Qe7 (7...Ngf6 8.Nd2 Qe7 9.Qa4 Ra6 10.ba5 e4 11.e3 Bg7=; 7...ab4 8.ab4 Ra1 9.Ba1 Ngf6 10.Nd2 Qe7 11.c5 Bh6=) 8.Nc3 (8.c5 ab4 9.ab4 Ra1 10.Ba1 b6 11.c6 Ndf6=) 8...ab4 9.Nd5 Qd6 (9...Qd8 10.ab4 Ra1 11.Ba1 c6=) 10.Nb4 (worse is 10.ab4 Ra1 11.Ba1 c6–/+) 10...c6 (10...Qb6 11.Qc3 Ngf6+=) 11.Nf3 Bg7 (11...Ngf6=) 12.Rd1 Qc7 13.Nd3 Nh6 14.e4 f6 15.Be2 Qa5 16.Rd2 (16.Nd2!?=) 16...Nf7+= 17.0–0 Qa4 (17...Ng5 18.Ng5 Qd2 19.Ne6 Qe2 20.Nc7 Ke7 21.Na8 Qe4 22.Nc7+=) 18.Bd1 Qb3 19.Bb3 Bf8 20.a4 Nc5 21.Nc5 Bc5 22.Ne1 Bg4 (22...Be6+=) 23.h3 (23.Nd3 0–0–0 24.Bc3 Bd4+=) 23...Be6 (better is 23...Bb4!? 24.Rc2 Bd1–/+) 24.Nd3+= 0–0–0 25.Rfd1 Bb6 26.Bc3 (26.Ba3 Ng5 27.Be7 Ne4 28.Bd8 Rd8 29.Rc2–/+) 26...Nd6–/+ 27.a5 Ba7 (better is 27...Ne4 28.ab6 Nc3–+) 28.a6? (better is 28.Re2 Bc4 29.Bc4 Nc4 30.Kf1–/+) 28...Ne4–+ (28...Bc4?! 29.Bc4 Nc4 30.ab7 Kb7 31.Ra2–/+; 28...ba6 29.Ne5 Ne4 30.Nc6 Bf2 31.Rf2 Rd1 32.Bd1 Nc3 33.Rf6=) 29.ab7 Kb7 30.Ba5 (30.Rc2–+) 30...Nd2 31.Rd2 Bb6 (31...Rd7!? 32.Kf1–+) 32.Bb6? (better is 32.Nc5 Bc5 33.Bd8–+) 32...Kb6 33.c5 Kc7 34.Be6 e4 35.Bc4 ed3 (35...Rd3?! 36.Bd3 Rd8 37.f4–/+) 36.Kf1 Rhe8 37.Bd3 Re5 38.f4 (38.Rd1 Rc5 39.Ke2 Rcd5–+) 38...Rc5 (38...Re3!? 39.Ra2 Red3 40.Ra7 Kc8 41.Rh7–+) 39.Rc2 (39.Ke2 Rcd5–+) 39...Rc2 (39...Rd3?! 40.Rc5 Rd2 41.Ra5–/+) 40.Bc2 c5 (40...Rd2 41.Bb3–+) 41.Ke2 c4 42.g4 Kc6 43.h4 Kc5 44.g5 (44.f5–+) 44...f5 45.h5 Kd4 (worse is 45...gh5 46.Bf5 Rf8 47.Bh7 Rf4 48.Bb1–+) 46.Kd2 Ra8 47.Bd1 Ra2 48.Bc2 (48.Kc1 Ra1 49.Kc2 Rd1 50.hg6 hg6 51.Kd1 Ke4–+) 48...Ra3 (better is 48...c3 49.Kd1 Rc2 50.Kc2 gh5–+) 49.hg6 (49.Ke2 Rc3 50.Ba4 gh5–+) 49...hg6 0–1. Poley,Vladimir (2405) – Shoker,Samy (2360), IM Saint–Lo, 2004.

6.c5 a5 7.a3 ab4 8.ab4 Ra1 9.Ba1 b6 10.Qa4=.

5.Nf3 a5

6.ba5 Bg7 A) 7.e3 ed4 (7...Ngf6 8.de5 Ng4 9.Bc3 Nde5 10.a6 Ra6 11.c5 Ra8 12.cd6 Qd6 13.Qd6 cd6=; 7...Ra5 8.Bd3 f5 9.Be2 Ngf6 10.0–0 Qe7 11.Nc3 0–0 12.Qb3 c5 13.de5 de5+=) 8.Bd4 Ngf6 9.Be2 0–0 10.0–0 Ra5 11.Nfd2 Re8 12.Nb3 Ra8 13.Nc3 c5=; B) 7.de5 Nh6 (7...de5 8.e4 Ngf6 9.Qc2 Qe7 10.Nc3 Qc5 11.Bd3 Ra5 12.a4 Qc6 13.0–0 0–0+=) 8.Qd2 Ne5 9.Ne5 Be5 10.Be5 de5 11.Qd8 Kd8 12.Nc3 Ra5 13.e3 Be6=.

6.b5 e4 7.Nfd2 e3 (7...Ngf6 8.e3 Nb6 9.Nc3 d5 10.c5 Nbd7 11.Be2 Bg7 12.0–0 0–0 13.Qb3 Nb8+=) 8.fe3 Bh6 9.e4 Ngf6 (9...Ndf6 10.d5+= a4 11.Bd4 Ng4 12.Nf3 Be3 13.Be3 Ne3+=) 10.e3 Be3 (10...Nb8 11.Be2 Be3 12.Qb3 Ng4 13.Bg4 Bd2+/–) 11.Be2 (11.Qf3 Bg5+/– 12.Bd3 c5 13.h4 Bh6+=) 11...0–0 (11...a4 12.e5 Ng8 13.ed6 cd6 14.Nf1+=) 12.Qb3 Bh6 (12...Ng4 13.Bg4 Qh4+=) 13.0–0 Re8 14.Qh3 (14.Qf3 Nb6+=) 14...Bg5 (14...Bd2 15.Nd2 Ne4 16.Ne4 Re4 17.Qf3+=) 15.Qd3 c5 16.bc6 (16.Qf3 cd4 17.Bd4 Ne5+=) 16...bc6 17.Nc3 (17.Bc3 c5=) 17...Rb8 18.Bc1 c5 19.Rb1 (19.Nb3 Bc1 20.Rac1 Bb7+=) 19...Rb1= 20.Ndb1 Bc1 21.Rc1 cd4 22.Qd4 Nc5 23.Bf3 Bg4 (23...g5 24.Rd1 Nb7 25.Nd2+=) 24.Rd1+= Bf3 25.gf3 Nh5 26.Kh1 Qh4 27.Rg1 (27.Qd6 Ne6 28.Rg1 Ng5=) 27...Ne6 28.Qe3 f5 29.Qe1 (29.ef5 Neg7 30.Qd2 Nf5 31.Qd5 Kf8–/+) 29...Qf4+= 30.Rf1 Nf6 31.Qd2 Qe5 (31...fe4 32.Qf4 Nf4 33.fe4=) 32.ef5= Qf5 33.Qd6 Rd8 34.Qb6 Rd4 35.Ne2 (35.Qc6!?=) 35...Rc4+= 36.Nbc3 Nh5 37.Qa6 Rb4 (37...Rc7 38.Qa8 Kg7 39.Nd5+=) 38.Ne4 Qe5 (38...h6 39.Nd6 Qc5 40.Ne4+=) 39.a3 Rb3 40.Rd1 (40.Qc8 Nf8 41.Qc4 Qe6=) 40...Kg7 (40...Rf3 41.N2c3 Kg7 42.Qd6–/+) 41.Rd7 (41.Ng1 Rb2 42.Ne2 Kh6–/+) 41...Kh6–/+ 42.Qa7 Rb1 (42...Nhg7 43.Ng1 Ra3 44.Nf2+=) 43.Ng1= Nhg7 44.Rb7 Rb7 45.Qb7 Nf5 46.Nf2 Ne3 47.Qb3 Kg7 48.Qb7 Nc7 49.Qa7 Nc4 50.Ne2 h5 51.Nd3 Qd6 52.Nef4 Kh6 (worse is 52...Na3 53.Qc7 Qc7 54.Ne6 Kf6 55.Nc7+/–) 53.Qb8 Kh7 (53...Na3?? 54.Qh8 Kg5 55.Qg7+–) 54.Qb7 Na3 55.Qb3 Qe7 ½–½. Buczinski,Henryk – Bubnov,Vladimir, corr IECG RM–2010–O–00047, 2010.

6.b5 Bg7 7.e3 Ngf6 8.Be2 0–0 9.0–0 Re8 10.Nc3 ed4 11.Nd4 Ne5 12.b6 c6 13.Na4 Ne4=; 6...Qe7 7.e3 Ngf6 (7...Bg7 8.Be2 Ngf6 9.0–0 0–0 10.Nc3 Re8 11.Qc2 ed4 12.ed4 Nb6 13.Rae1 Bg4+=) 8.Be2 Bg7 9.0–0 0–0 10.Nc3 Re8 11.Qc2 ed4 12.ed4 Nb6 13.Rae1 Bg4+=.

5.Nf3 Bg7

6.e3 Ne7 7.Be2 a5 8.b5 0–0 9.0–0 ed4+=.

6.e4 a5 7.b5 Qe7=.

6.de5 de5 7.Qa4 f6 8.Nc3 Ne7 9.c5 a6+=.

6.de5 de5 7.e4 c5 8.bc5 Qa5 9.Qd2 Qc5+=.

6.de5 de5 7.e4 Ne7 8.Be2 0–0 9.0–0 b6 10.Qc2 c6 11.Rd1 Qc7 12.Nc3 Rd8 13.a4 Bb7 14.a5 ba5 15.Ra5 Nf8 (15...c5!? 16.Nd5 Nd5 17.cd5 Rdc8+/–) 16.Rd8+– Rd8 17.Ra7 Qb6 (17...Ne6 18.c5+/–) 18.Qa4+– Ne6? (better is 18...Nc8 19.Ra5 Qc7+–) 19.Qa5 Qa5 20.ba5 (20.Ra5?! Nd4 21.Kf1 Nc8+/–) 20...Nc5 (20...Rd7 21.a6 Bc8 22.Rd7 Bd7 23.a7+–) 21.a6! Nc8 (21...Ba6 22.Re7; 21...Na6 22.Rb7) 22.Rb7 (worse is 22.ab7 Na7 23.Bc1 Nb7–/+) 22...Nb7 23.ab7 Nd6 24.Kf1 Nb7 25.Ke1 f6 26.Nd2 Nc5 27.f3 Bh6 28.Ncb1 Ne6 29.Ba3 Kf7 30.c5 Be3 31.Bc4 Ke7 32.Be6 Ke6 33.Ke2 Bg1 34.h3 Ra8 35.Nc4 f5 36.Nb6 (36.Nbd2 h5+/–) 36...Ra5+/– 37.Nc4 Rb5 (37...Ra8 38.Bb2 Bc5 39.Be5 fe4 40.fe4 Rf8+–) 38.Nc3+/– Rb3 39.Kd2 Bd4 40.Nd1 (40.Ne2!? Bf2 41.Kc2+–) 40...fe4+/– 41.fe4 Kf6 42.Bb2 Rb4 43.Kd3 Rb3 44.Bc3 Rb1 (44...Ke6 45.Kc2 Rb5 46.Bd4 ed4 47.Kd3 Rc5 48.Kd4+–) 45.Nce3 (45.Ndb2 Bc3 46.Kc3 Rc1 47.Kd2 Rg1+–) 45...Bc5 46.h4 (better is 46.Kc2 Rb6 47.Nc4+–) 46...Ke6+= 47.Kc2 Rb5 48.Nc4 Bd4 49.Na3 Rb8 50.Bd2 (50.Nb2 Rg8+=) 50...c5 51.Nc4 Rf8 52.Be3 Rf1 53.Kd2 Rh1 54.Bg5 h6 55.Bh6 (55.Bd8!?+=) 55...Rh4–/+ 56.Bg7 Re4 57.Nce3? (better is 57.Bh6–+) 57...Rh4 58.Nf2 (58.Nc4 e4 59.Bd4 cd4–+) 58...Kf7 59.Be5 Be5 60.g4 (60.Nfg4 Bf4 61.Kc2 Ke6–+) 60...Bd4 61.Kd3 Rh2 (better is 61...Ke6 62.Ne4–+) 62.Nfd1 (62.Ne4–+) 62...Rh3 63.Ke4 Re3! 64.Ne3 Be3 65.Ke3 Ke6 66.Ke4 g5 67.Kd3 Kd5 68.Kc3 Ke4 69.Kc4 Kf4 70.Kc5 Kg4 71.Kd4 Kf3 72.Ke5 g4 73.Kd5 g3 0–1. Zielke,Bernd – Kvisvik,Brede Alexander, Kiel op, 2000.

6.de5 de5 7.e4 Ne7 8.Be2 0–0 9.0–0 c5+=.

6.de5 de5 7.e4 Ne7 8.Be2 0–0 9.0–0 c6 10.Nc3 (10.Qd6 Nf6 11.Qd8 Rd8+=) 10...Qc7 (10...a5 11.a3+=) 11.c5+/– b6 (11...Nf6 12.Qd6 Ne8 13.Qc7 Nc7 14.Rfd1+=) 12.Qd6 White begins to deal mighty blows 12...Qd8 13.Rfd1 Rb8 (13...bc5!? 14.bc5 Rb8+/–) 14.cb6+– ab6 15.b5 c5 16.Bc4 Kh8 (16...Ra8 17.Ne2+–) 17.Bf7! Rf7 (17...Ng8+–) 18.Qb8!! Ng8 (18...Nb8 Exploits the pin 19.Rd8) 19.Ne5! Qf6 (19...Ne5 A pinning theme 20.Rd8 A pinning theme) 20.Nf7 (20.Nf7 Qf7 21.Qc8+–; 20.Qc8?! Qf2 21.Kh1 Be5=) 1–0. b4_player – opponent, gamecolony.com, 2007.

6.de5 de5 7.e4 Ne7 8.Be2 c5 9.bc5 Nc6=.

6.de5 Ne7 7.e3 0–0 8.Be2 Ne5 9.Ne5 de5=.

4.d4 Bg7

5.e3 a5 6.b5 Ne7 7.Nf3 Nd7 8.Be2 0–0 9.0–0=.

5.e3 Ne7 6.Nf3 (--> 4.e3 Bg7 5.Nf3 Ne7 6.d4).

5.de5 a5 6.Qd2 de5 7.Qd8 Kd8 8.b5 c5 (8...Bf5 9.Nf3 Nd7 10.c5=) 9.f4 Be6 10.Nd2 Nd7 11.Ngf3 Ne7 12.Ne5 Be5 13.fe5 Nf5 14.Kf2 a4 15.e3 a3 16.Bc3 Kc7 17.Be2 Rad8 18.Rhd1 b6 19.Rab1 f6?? (better is 19...Rhe8+/–) 20.ef6+– Nd6 21.Rb3 (21.e4!? Rhf8 22.e5 Nf7+–) 21...Rhf8 22.Ra3 Nf6 23.Bf6 (23.Ke1 Kb8+–) 23...Rf6 24.Ke1 h6 25.Ra7 Kb8 26.Ra6 Kc7 27.Rc1 Bc8 (27...Rdf8 28.Ra7 Kb8 29.Re7+–) 28.Ra7 Bb7 29.Bf3 Kb8 30.Ra4 Nf5 31.Rc3 (31.Rc3 Nh4 32.e4+–) 1–0. Diener,Rudolf – Matzke,Sandor, corr ICCF WT–M–454, 1988.

5.Nf3 e4 (5...ed4 6.Nd4 Nf6 7.e3 Bg4 8.Be2 Be2 9.Qe2=) 6.Nfd2 Nf6 7.e3 0–0 8.Be2 c5 9.b5=.

5.e3 ed4

6.Nf3 c5 7.ed4 cb4 8.Bd3 Ne7 9.Qb3=.

6.Nf3 Nf6 7.ed4 0–0=.

5.de5 Nc6

6.Qb3 de5 7.e3 Bg4 (7...Bf5 8.Nd2 (8.Nc3 Nf6 9.b5 Nb8 10.Rd1 Nbd7 11.Nf3 Qe7+=; 8.b5 Nb8 9.Nd2 Nd7 10.e4 Nc5 11.Qc2 Bg4=) 8...Qd6 9.b5 Nce7 10.Rd1 0–0–0 11.Be2 Qc5+=; 7...a6 8.Nf3 (8.Nc3) 8...Be6 9.a3 Qe7 10.Nc3 0–0–0 11.Nd5 Qe8+=) 8.Nc3 (8.Nd2 Qe7 9.b5 Nb8 10.Ba3 Qd8 11.Be2 Be2+=; 8.b5 Nb8 9.h3 Be6 10.Nc3 Nd7 11.Rd1 Nh6+=) 8...Qd7 (8...Qh4 9.g3 Qh5 10.Bg2 Nge7 11.Rc1 Rd8+=) 9.f3 Be6 10.Rd1 Qe7 (10...Qc8 11.Nd5 f6+=) 11.Ba3 (11.Nd5 Bd5 12.cd5 Qb4 13.Qb4 Nb4+/–) 11...Bf8 (11...Qh4!? 12.g3 Qh6=) 12.Nd5+= Qd8 (12...Bd5 13.cd5 (13.Rd5?! Nf6=) 13...Nb8 14.Qc3+=) 13.Ne2 (13.b5 Ba3 14.Qa3 Nb8+/–) 13...Nf6 (13...Bd7 14.Ng3+=) 14.Nec3 (14.b5 Na5 15.Qa4 A) 15...Nd5? 16.cd5 (16.Qa5 Qh4 17.g3 Qc4 18.Bf8 Rf8–/+) 16...Bd5 17.Nc3 Ba3 18.Qa3+– (18.Nd5?! Bd6+–); B) 15...Ba3 16.b6 Bd7 17.Nf6 Qf6 18.Qd7 Kf8 19.bc7 Kg7+/–) 14...Nd7+= 15.Ne4 f5 16.Ndf6 Kf7 17.Nd7 Bd7 18.Ng5 Kf6 19.f4 Qe8 20.c5 h6 21.Qf7! Qf7 22.Nf7 Rh7 23.Ne5 Ne5 24.Bb2 Be6 25.Be5 (worse is 25.fe5 Kf7+=) 25...Kf7 26.g4 fg4 27.Bc7 b6 28.Bg2 Rc8 29.Bd6 bc5 30.bc5 Bd6 31.cd6 (31.Rd6?! Rc5 32.0–0 Ke7=) 31...Kf6 32.Rd2 g5 33.0–0 Rd7 34.fg5 Kg5 35.e4 Rc5 36.Rf8 h5 (36...Re5 37.Re8+–) 37.e5!+– h4 (37...Re5 38.Bc6) 38.Re2 Rg7 39.Re8 Bd7 40.Rb8 Be6 41.Rf8 a5 42.Kf2 Rd7 43.Ke1 (43.a3 a4+–) 43...a4 44.Bf1 (better is 44.Kf2!?+/–) 44...Rb7+= 45.Kf2 Rd7 (45...a3!? 46.Kg1 Rb2+/–) 46.Kg1 a3 47.Re8 Bf7 48.Ra8 Be6 (48...Kf5 49.e6 Be6 50.Rf8 Bf7+–) 49.Ra3 Rc1 50.Rf2 Rb7 51.Rd3 (51.Re3 Ra7+–) 51...Re1 52.Rd4 Re5 53.Rfd2 Bd7 54.a4 Re1 55.Kf2 Re5 56.Be2 Rb3 57.Bf1 Rf5 (57...Rb7 58.Rd5 Kf6+/–) 58.Kg1+/– Rb1 59.Rd1 Rb2 60.Rd5 Rd5 61.Rd5 Kf4 62.a5 h3 63.a6 g3 (better is 63...Ra2!?+/–) 64.hg3+– Kg3 65.Rg5 (65.Rd3!? Kh4 66.Bh3 Bh3+–) 65...Kh4+/– 66.Rc5 Bg4?? (better is 66...Rb1+/–) 67.Rc4+– h2 68.Kh1 Rb1 69.d7 Rf1 70.Kh2 Rf2 71.Kg1 Rf8 72.a7 Rd8 73.Kh2 Ra8 74.Rc8! Bd7 (74...Rc8 75.dc8Q) 75.Ra8 Bc6 76.Rh8 Kg4 77.a8Q Ba8 78.Ra8 (78.Ra8 Kf3 79.Ra4+–) 1–0. Faber – Romischke, 1996.

6.Qb3 Be5 7.Be5 Ne5 8.Nf3 Nf3 9.Qf3 Qf6 10.Qf6 Nf6 11.Nc3 Bf5 =.

6.Qb3 Ne5? 7.f4 +–.

6.Bc3 de5 7.Qd8 Nd8 8.e3 Ne7 9.Nf3 f6 10.Nbd2 Be6. Rooijen Van,Peter (1655) – Jones,Ian, BI–2010–P–00022, 2010.

6.Bc3 Ne5 7.f4 +/–.

6.Qd2 de5 7.b5 (7.Qd8 Nd8 8.Nc3 (8.Na3 Bf5 9.e3 a5 10.b5 f6 11.Ne2 Bf8=; 8.b5 Ne6 9.Nf3 f6 10.Nc3 a6 11.e3 Ne7=) 8...Ne6 9.e4 Ne7 10.Rd1 Nc6 11.Nd5 Ncd4=) 7...Qd2 8.Nd2 Nce7 (8...Nd4 9.Rc1 Ne7 10.e3 Ne6 11.c5 f6=) 9.e4 f5 (9...f6!?+= 10.Rd1 Be6 11.Nb3 a6+=; 9...a6 10.f4 Be6 11.ba6 Ra6+=) 10.Ngf3+/– Nf6 (10...fe4 11.Ne4 Bf5+/–) 11.Bd3 (11.Be5 0–0+/– (11...a6+/–)) 11...0–0 (11...Nd7+=) 12.Be5 (12.ef5 Rd8 13.Bc2 Bf5 14.Bf5 Nf5 15.Be5 a6+/–) 12...fe4 13.Ne4 (worse is 13.Be4 Ne4 14.Bg7 Nd2 15.Bf8 Nf3 16.Ke2 Kf8 17.Kf3 Be6+=) 13...Ne4 14.Bg7 (14.Be4?! Rf3 15.Bf3 Be5+=) 14...Kg7 15.Be4 Rf4 16.Nd2 a6 17.a4 ab5 18.cb5 Bf5 19.f3 Be4 20.fe4 c6 21.bc6 Nc6 22.Rf1 Rf1 23.Kf1 b5 24.Rc1 Nd4 25.Rc7 Kh6 26.ab5 Nb5 27.Rd7 1–0. Bertel,Michael (1765) – Howes,Tony, IECG, 2004.

6.Qd2 Ne5 7.f4 Nc4 8.Bg7 Nd2 9.Nd2 Nf6 10.Bh8 Nd5 11.e4 Nf4 =.

6.e4 =.

6.Nf3 Ne5 7.Ne5 Be5 8.Be5 de5 9.Qd8 Kd8 10.Nc3 c6 11.b5 Kc7 12.bc6 bc6 13.e4 Nf6 14.Bd3 Be6 15.0–0 Rhd8 16.Be2 Rab8 17.f4 ef4 18.Rf4 Nd7 19.Rd1 Ne5 20.Rd8 Rd8 21.Na4 (21.Kf2 Nd3 22.Bd3 Rd3–/+) 21...Nc4 (21...Bc4?! 22.Bc4 Nc4 23.Rf7 Rd7 24.Rd7 Kd7 25.Kf2=) 22.Bc4 Bc4 23.a3 Rd1 24.Kf2 Ra1 25.e5 Rf1 (25...Ra2 26.Kg1 Be6 27.Nc5–+) 26.Kg3 Rf4 27.Kf4 h6 28.Nc5 Kb6 29.Nd7 Kb5 30.Ke4 Bd5 31.Kd4 Ka4 32.Nc5 Ka3 33.g4 a5 34.Kc3 a4 35.h4 Bb3 36.Na4?? (36.g5 hg5 37.hg5–+) 36...Ba4 37.Kc4 Bb3 38.Kc5 Bd5 39.Kd6 Kb4 40.g5 hg5 41.hg5 Be6 (better is 41...c5!? 42.Kd5 c4 43.Kd6–+) 42.Kc6 Kc4 43.Kd6 Kd4 44.Ke7 Ke5 45.Kf8 Kf5 46.Ke7 Kg5 0–1. Van Dosselaer,Mattias – Bossi,Noemi, RD–2010–0–00032, 2010.

6.Nf3 Be6 A) 7.e4 A1) 7...Bg4 8.Nbd2 Ne5 9.Qa4 Bd7 10.Qc2 Qe7 11.Be2 Nf3=; A2) 7...Nge7 8.a3 (8.Nbd2; 8.Na3) 8...a5 9.Be2 Ne5 10.Ne5 Be5 11.Be5 de5=; A3) 7...Ne5 8.Ne5 Be5 9.Be5 de5 10.Nc3 Ne7 11.a3 Nc6=; B) 7.e3 B1) 7...a5 8.Qb3 Ne5 9.Ne5 de5 10.ba5 Ne7 11.Nc3 Qc8=; B2) 7...Nge7 8.Be2 (8.Nbd2; 8.Na3) 8...Ne5 9.Ne5 de5 10.0–0 0–0 11.Qb3 Nf5=; B3) 7...Ne5 8.Ne5 de5 9.Nc3 Nh6 10.Qd8 Rd8 11.Nb5 c6=; C) 7.Nbd2 C1) 7...Qd7 8.e4 (8.Qa4) 8...0–0–0 9.Qa4 Kb8 10.c5 Ne5 11.Qd7 Rd7=; C2) 7...Nh6 8.Qb3 (8.e3 Ne5 9.Ne5 de5 10.Be2 0–0 11.0–0 Qe7=) 8...Ne5 9.Ne5 de5 10.Nf3 f6 11.Rd1 Qe7=.

6.Nf3 Bg4 7.Nc3 Bf3 (worse is 7...Nb4 8.Qb3 Na6 (8...Nc6 9.ed6 cd6 10.Nb5 Bb2 11.Qb2 Nf6+/–) 9.ed6 cd6 10.Nd5+/– Kf8 11.Qb7 Bf3+/–; 7...Ne5?! 8.Qb3 (8.Ne5 Be5 9.g3= Qd7 10.Qd2 0–0–0 11.Bg2 Kb8=) 8...Bf3 9.ef3 Qe7 10.0–0–0 Nf6 11.f4 Neg4=; 7...de5?! A) 8.b5 Bf3 (8...Nd4 9.h3 Bf3 10.gf3 Qd6 11.e3 Qb4=) 9.ef3= Nd4 10.Bd3 Qd6 11.Ne2 0–0–0=; B) 8.Qa4 Bd7 9.e4 Nd4 10.Qd1 Bg4 11.Be2 Bf3=) 8.ef3 (8.gf3 Ne5 9.e3 Qd7 10.Rb1 0–0–0 11.f4 Nc6=) 8...Ne5 (worse is 8...Nb4 9.Qb3 Nc6 10.Nd5+/– Be5 11.Qb7 Kd7+=; 8...Be5 9.f4 Bf6 10.b5 Nd4 11.Qd2 Ne6+=) 9.f4 (9.Be2 Qh4 10.g3 Qd8 11.f4 Nd7+=) 9...Nc6 10.Nd5 (10.b5 Nd4 11.Nd5 Ne6+=) 10...Nf6 11.Qe2 (11.b5 Nb8+=) 11...Kf8 12.Qd2 Rg8 13.Be2 Nd5 14.Bg7 Kg7 15.cd5 (worse is 15.Qd5 Nb4 16.Qd2 Nc6–/+) 15...Qf6 16.0–0 Nd4 17.Bc4 Rge8 18.Rfe1 c6 19.dc6 bc6 20.Rad1 ½–½. Woschkat,Karl_Heinz – Droessler,Uwe, corr, 1998.

6.Nf3 Bg4 7.Nbd2 Nge7 8.h3 Be6 9.ed6 Bb2 10.Rb1 Bg7 11.de7 Qe7 =.

6.f4 de5 7.Qd8 Nd8 8.Nf3 (8.e3 Nh6 9.Nf3 Ng4 10.Na3=) 8...f6 (8...Ne6 9.fe5 Bd7 10.Nc3+= (10.e4+=)) 9.fe5+= Nc6 10.Nc3 (10.ef6+=) 10...Nb4 11.Nd5 Nd5 12.cd5 Bf5 13.Rc1 0–0–0 14.Rc4 (14.d6 c6+=) 14...fe5= 15.e4 b5 16.Rb4 a5 17.Rb5 Be4 18.Ra5 Rd5 19.Rd5 Bd5 20.Ba6 Kd8 21.Ne5 Nh6 (21...Bg2? 22.Rg1 Nf6 23.Rg2+–) 22.0–0 Re8 23.Bb5?? (better is 23.Rd1 Be5 24.Rd5 Bd6 25.Bb5=) 23...Be5–+ (23...Re5? 24.Be5 Be5 25.Rd1+–) 24.Rd1 Bb2 25.Rd5 Ke7 26.Be8 Ke8 27.Kf2 Ng4 28.Ke2 Nh2 29.a4 Ng4 30.a5 Ne5 31.Rc5 Kd7 32.Rb5 Nc6 33.Rb2 Na5 34.Rd2 Ke6 35.Rc2 ½–½. Benassi,Aspasio – Plock,Joerg, corr 3GMMsemi–10, 1998.

5.de5 Nd7

6.Nf3 de5 7.e4+= Qe7 8.c5 c6 (8...Ngf6 9.Bd3+=) 9.Nbd2 Ngf6 10.Be2 0–0 11.Qc2 b6 (11...Rd8 12.Nc4+=) 12.cb6 Qb4 13.ba7 (worse is 13.Be5 Ne5 14.Ne5 Ne4+=) 13...Ra7 14.0–0 (14.Ne5 Ne5 15.Be5 Rd8+/–) 14...Ba6 (14...Rd8 15.Rfd1 Qa4 16.Qc4+=) 15.Ba6 (15.a3 Qe7 16.Ba6 Ra6+=) 15...Ra6 16.Ne5 (16.Rfd1 Qa4 17.Rdc1 Rc8+=) 16...Ne5= 17.Be5 Re8 (17...Ne4 18.Bg7 Qd2 19.Qd2 Nd2 20.Bf8 Kf8+–) 18.f4+/– Ng4 (18...Rd8 19.Nc4+/–) 19.Bg7 Kg7 20.Nc4 Ra4 21.Rac1 Rea8 22.Qe2 (better is 22.a3!? Qc5 23.Kh1 Rc4 24.Qc4 Nf2 25.Rf2 Qf2 26.Qc3 f6 27.f5+/–) 22...Qc5= 23.Kh1 Qh5 Threatening mate: Qxh2 24.h3 Nf6 25.Qh5 Nh5 26.Nb6 Ng3 27.Kg1 Nf1 28.Kf1 (28.Na8?! Ng3 29.Kh2 Ne4=) 28...Ra2 29.Na8 Ra8 30.e5 Ra6 ½–½. Pleschke,Helmut – Lebel,Patrick, Orang–Utan Invitational, 2001.

6.Nf3 Ne5 7.Ne5 Be5 8.Be5 de5 9.Qd8 Kd8 10.Nc3 Nf6 11.e3 Be6 12.Be2 a5 13.b5 Ke7 14.f3 Nd7 15.Nd5 Bd5 16.cd5 f5 17.Rc1 Kd6 18.0–0 Nc5 (worse is 18...Kd5 19.Rc7 Nb6 20.e4 Ke6 21.Rb7+–) 19.Rfd1 Rad8 20.Rc2 g5 21.h3 h5 22.Bd3 Rhf8 23.Be2 b6 24.Rc4 Rf6 25.Rc2 Re8 Black intends e4 26.Rc3 e4 27.fe4 Re4 (27...fe4 28.Bh5 Re5 29.Rc2=) 28.Bh5+= Rb4 29.Rc2 (29.Be2!?+=) 29...Rb5= 30.Be8 Rb4 31.Bc6 Re4 32.Rc3 g4 33.hg4 Rg4 34.Rc2 Rf7 35.Rf1 Rh4 36.Kf2 (36.a3!?=) 36...Rg7 (36...Nd3 37.Kf3 Nb4 38.Rd2 Nc6 39.dc6 Kc6 40.Rd8–/+) 37.Kg1 Ne4 38.Rfc1 Rgh7 39.Kf1 f4 (39...Rh2 40.Ba8 Nc5 41.Rd1–/+) 40.ef4 Rf4 41.Ke2 Rg7 42.Bb5 (42.Ba8 Rg8 43.Bb7 Nc5–/+ (43...Rg2 44.Ke3 Rgg4 45.Rc7–/+)) 42...Rg2 (42...Kd5 43.Rc7 Rf2 44.Ke1 Rc7 45.Rc7 Ra2 46.Bc4 Kd6 47.Ba2 Kc7 48.Bd5–+) 43.Ke3 Rc2 44.Rc2 Rh4 45.Rc6 (45.Bf1!?–/+) 45...Ke5–+ 46.Bf1 Rh1 47.Bg2 Re1 48.Kf3 Ng5 (48...Ra1 49.Re6 Kd5 50.Re4 Ra2 51.Rg4–/+) 49.Kg3 Re3 (better is 49...Re2 50.Rc7 Ra2 51.Re7 Kf6–/+) 50.Kf2? (better is 50.Kg4 Re2 51.Bf3–/+) 50...Ra3–+ 51.Rc7 Ra2 52.Kf1 Rd2 (52...Rg2 53.Kg2 Kd5 54.Rb7–+) 53.Ra7 (53.Re7 Kf4–+) 53...Kf4 (better is 53...Rg2 54.Kg2 Kd5 55.Rb7–+) 54.Ra6? (better is 54.Ra8–+) 54...Kg3 55.Bh1 Rf2 56.Ke1 Rh2 ½–½. pcmvr – gcohen (2850), net–chess.com, 2016.

6.Nf3 Ne7 7.ed6 Bb2 8.de7 Qe7 9.Nbd2 Ba1 10.Qa1–/+.

5.de5 de5

6.Qd8 Kd8

7.Nf3 Nc6 8.b5 Nd4 (8...Nb4 9.Kd1 (worse is 9.Be5 f6–/+) 9...Bf5 10.Nbd2+=) 9.Nd4= ed4 10.Nd2 (10.e3 Ne7 11.Bd4 Bd4 12.ed4 Nf5+/–) 10...c5 (10...a6!?+=) 11.bc6!+/– bc6 12.Nb3 Be6 13.e4 Ne7 (13...c5 14.Nc5 Ne7 15.Rd1+–) 14.Nd4 Bd4 (14...Kc8 15.Rd1 (15.Ne6? Bb2 16.Rd1 Bc3 17.Ke2 fe6–+) 15...Rb8 16.Ba1+/–) 15.Bd4+– Re8 16.f4 Nc8 (16...Kc7 17.Rb1+–) 17.0–0–0 (17.Bf6 Kc7+–) 17...Kc7 (17...Bg4 18.Bf6 Kc7 19.Rd4+/–) 18.Be5 (18.Bd3 Nd6 19.c5 Nc4+–) 18...Kb7 (18...Kb6 19.Be2+–) 19.c5 Ne7 (19...a5 20.Be2+–) 20.Kc2 a6 (20...a5 21.Rb1 Ka7 22.a4+–) 21.Rb1 Kc8 (21...Ka7 22.Rb6 a5 23.Bd3+–) 22.Rb6 1–0. pcmvr (2760) – gtan (2300), net–chess.com, 2006.

7.Nf3 Nd7 8.e3 (8.Nc3 e4 9.Ng5 Ke8+/–) 8...Ne7 9.Nc3 c6 (9...a5 10.b5+=) 10.Ng5+/– Ke8 11.Nce4 (11.Nce4 Nf5 12.g4+=). pcmvr (2530) – rhand (2240), net–chess.com, 2006.

7.Nf3 Bf5 8.Be5 Be5 9.Ne5 Ke7 10.Nc3 Nd7 11.Nd5+– Ke6? 12.Nf3 Rc8 13.Ng5 (13.Ng5 Kd6 14.Nf7 Ke6 15.Nh8+–) 1–0. Sopermi (2265) – MENOR (1915), ajedrez21.com, 2001.

7.Nf3 f6 8.b5 c5 (8...Be6 9.Nbd2=) 9.Nc3+= Be6 10.e3 Nd7 11.Be2 Nb6 (11...g5 12.Rd1=) 12.Nd2 (12.Ne4 Bf8 13.Ba3 Bc4 14.Bc4 Nc4 15.Rd1 Kc8 16.Bc5 Bc5+=) 12...Nh6 (12...Kc8 13.Rd1+=) 13.a4 Ke7 (13...Kc8 14.Nce4 Nd7 15.Nb3+=) 14.a5+/– Nd7 15.Bf3 Rab8 16.0–0 Nf5 17.Rfd1 Nd6 18.Bd5 (18.Nd5 Kd8+/–) 18...f5 19.Be6 Ke6 20.Nd5 Rbc8 (20...Nf6 21.Nf3 Nfe4 22.Ra4+/–) 21.Nf3+/– The mate threat is Ng5 21...h6 22.Rac1 Rhg8 23.Rc2 (better is 23.Ba1+/–) 23...e4? (better is 23...g5=) 24.Nf4+– Ke7 25.Ng6 Ke6 (25...Ke8 26.Rd6 ef3 27.Bg7 (worse is 27.gf3 Bf6–/+) 27...Rg7 28.Nh4+–) 26.Bg7 Rg7 27.Ngh4?? (better is 27.Nfh4 Rg6 28.Ng6+–) 27...Ne5?? (better is 27...Rf8 28.Nd2 f4+=) 28.Ne5 (28.Rd6!? Kd6 29.Nf5 Kc7 30.Ne5 Rg5+–) 28...Ke5 (28...Nb5 29.Neg6 Nc7+–) 29.Rd6! (29.Rd6 Rg2 30.Kg2 (worse is 30.Ng2 Kd6 31.Rd2 Ke7+–) 30...Kd6 31.Nf5 Ke6 32.Nh6+–) 1–0. Zylla,Johannes – Donner, BS–Stadtm., 1991.

7.Nf3 f6 8.Nc3 Be6+=.

7.Nf3 f6 8.e4 Bg4 9.Be2 c6 (9...Nc6 10.a3+=) 10.Nbd2 (10.Nc3 Kc8+=) 10...Nh6 (10...Kc8 11.Rd1+=) 11.0–0 Ke7 (11...Kc8 12.Rfd1+=) 12.c5 (12.Rfd1 a5 13.b5 cb5 14.cb5 Nd7+/–) 12...Nd7 (12...a5 13.b5+=) 13.Nc4 (13.Rfc1 Rhd8+=) 13...Nf7 (13...b6 14.cb6 ab6 15.a4+=) 14.Rfd1 Rhd8 (14...Ng5 15.Na5=) 15.Nd6 (15.Na5 Rab8+=) 15...Nd6 (15...a5 16.Nf7 Kf7 17.Ng5 fg5 18.Bg4 Nf6 19.Rd8 Rd8=) 16.Rd6 (16.cd6 Ke8+=) 16...Nf8 (16...b6 17.Ba3=) 17.Rad1+= Rd6 (17...a5 18.b5 cb5 19.Bb5 Rd6 20.cd6 Kd8 21.Bc3+=) 18.Rd6 (18.cd6 Kd8+=) 18...Rd8 (18...Be6 19.a4=) 19.Rd8 Kd8 20.Kf1 (20.Bc1 Be6 21.a4 h6=) 20...Bf3 (20...Ne6 21.h3 Bf3 22.Bf3=) 21.Bf3 Ne6 22.Be2 Ke7 23.h4 a5 (23...Nd4 24.a4=) 24.a3+= ab4 25.ab4 f5 26.ef5 (26.Bd3 Kf6+=) 26...gf5= 27.Bc4 Bf6 28.g3 Nc7 (28...e4 29.Bf6 Kf6 30.Ke2=) 29.Ke1 (29.Bg8 h5=) 29...Nd5 (29...e4 30.Bf6 Kf6 31.Kd2=) 30.b5 Kd7 (30...Ke6=) 31.Bd5 (better is 31.Ke2!?+=) 31...cd5+= 32.f4 (32.Ke2 Ke6+=) 32...d4–/+ 33.fe5 Be5 34.Kf2 (34.Kd2 Ke6 35.c6 bc6 36.bc6 Kd6–/+) 34...Ke6 35.Kf3 (35.h5 Kd5 36.Ba3 Kc4–+) 35...Kd5–+ 36.c6 (36.Ba3 Kc4 37.c6 bc6 38.bc6 Kd5–/+) 36...bc6 37.bc6 h5 (37...Kc6?! 38.g4–/+) 38.Ba1 (38.Kf2 Kc6 39.Ba1 Kd5–+) 38...Bc7 (38...Bc7 39.Kf2 Kc5–+; 38...Kc6 39.Bb2–+) 0–1. Sternik,Ryszard – Uznanski,Jerzy, corr PAT Poland, 1993.

5.de5 Be5

6.Nc3 Be6 7.e3=.

6.Nc3 Ne7 7.Nf3 Bg7 8.e3 a6 (8...Nbc6 9.a3=) 9.b5 (9.Bd3 Nbc6 10.a3 a5+=) 9...ab5= 10.cb5 0–0 11.Be2 Be6 12.0–0 Nd7 13.Nd4 Nd5 14.a4 Qh4 15.a5 Nc5 16.Ne6 White launches an attack 16...Nc3 17.Bc3 Ne6 (17...fe6 18.Bg7 Kg7 19.a6+=) 18.Bg7+/– Kg7 19.Bf3 Rab8 (19...Nc5 20.a6!+/–) 20.a6+– Nc5 21.Ra3 (21.a7 Ra8+–) 21...f5 (21...Qe7 22.Qd4 f6 23.Rc1+/–) 22.ab7 (22.Qa1 Rf6+–) 22...Ne4 (22...h6 23.b6 cb6 24.Qd6+–) 23.Qd5 Nc5 (23...Rfe8 24.Qc6+–) 24.Ra7+– Qf6 25.Rd1 Rfd8 26.Qd4 Qd4 27.ed4 Ne4 28.Rc1 Rd7 29.Be2 (29.Be4 fe4 30.Rc6 Kf6+–) 29...h6 (29...d5 30.f3 Nd6 31.Kf2+=) 30.Bd1 Nf6 31.Ba4 Re7 32.b6 (32.Bb3!?+–) 32...cb6+/– 33.Bc6 Rc7 34.Ra8?? (better is 34.Kf1+/–) 34...Rbb7–/+ ½–½. Sternik,Ryszard – Frysiak,Andrzej, corr Poland, 1990.

6.Be5 de5 7.Qd8 Kd8 8.Nc3 Be6 9.Nf3 Nd7 10.e3 Ngf6 11.Be2 Ke7 12.0–0 c6 13.Rfd1 Rad8 14.h3 h6 15.Nd2 b6 16.Rab1 a5 (better is 16...c5!?=) 17.ba5+/– ba5 18.Bf3 Rc8 19.Rb7 Rhd8 20.Nb3 Bc4 21.Na5 Exerts pressure on the isolated pawn 21...Ba6? (better is 21...Bd5+=) 22.Ra7+– (22.Nc6?! Rc6 23.Bc6 Bb7 24.Bb7 Rb8+/–) 22...Bb5 23.a4 Ba4 24.Na4 c5 (24...e4 25.Bg4 Kf8 26.Bd7 Ra8 27.Ra8 Ra8 28.Bc6 Ra5+–) 25.Nb6 1–0. michaelbuss – tropnevad, ChessWorld.net, 2007.

6.Nf3 Bb2 7.Nc3 Bc3 8.Qd2 Ba1 9.Qd1 Bc3 10.Qd2 Bd2 11.Nd2 Nc6 12.e3 Nb4 13.f4 Qh4 14.Ke2 Bg4 15.Nf3 Bf3 16.Kf3 Qh5 17.Ke4 Nf6 18.Kd4 c5 19.Kc3 Ne4 20.Kb3–+ Qd1 21.Ka3 a5 22.g3 Nc3 23.Bg2 Nb1 24.Kb2 Qc2 25.Ka1 Qa2 0–1. idontknow – afcwarren (1700), net–chess.com, 2006.

5.de5 Be6

6.Nc3 Be5 7.e3 (7.Qb3 Bg7 (7...Nc6; 7...a5) 8.e3 Nd7 9.Nf3 Ngf6 10.Be2 a5 11.a3=) 7...Bg7 (7...Bf6 8.Nf3 Nc6 9.a3 a5 10.b5 Ne5 11.Ne5+=) 8.Nf3 Nf6 (8...Nc6 9.a3 Nge7 10.Be2 0–0 11.Qb3+=) 9.Be2 0–0 10.0–0 Nc6 11.b5 Ne5 12.Ne5 de5 13.Qc2 Qe7 14.Rfd1 Rfd8 15.Bf3 Bf5 16.e4 Rd1 17.Rd1 Bd7 18.a4 c6 19.Be2 Be6 20.Qb3 Rd8 21.Rd8 Qd8 22.Qc2 Nd7 23.Qd1 Bf8 24.Bd3 (24.Bc1 Bc5=) 24...Nc5+= 25.Bf1 (25.Be2 Qd1 26.Nd1 f6–/+ (worse is 26...Ne4 27.Be5 Bc5 28.a5=)) 25...Qd1–/+ 26.Nd1 f6 27.Nc3 Nb3 28.Nb1 Kf7 29.Be2 Na5 30.Nd2 Bb4 31.Bc1 Ke7 32.f3 Kd6 33.Kf2 Kc5 34.g3 Kd4 (34...Nc4? 35.Nc4 Kd4 36.Be3 Kc3 37.Bd2 Kb3 38.Bb4 Kb4 39.Nd6+–) 35.Bb2 Bc3 36.Bc1 Ba1 37.Nf1 Nc4 38.bc6 bc6 39.Ne3 Kc3 40.Bc4 Bc4 41.Ng4 Kc2 42.Be3 f5 43.ef5 gf5 44.Nf6 a5 45.Nh7 Bb3 46.h4 Ba4 47.Ng5 (47.h5!?–/+) 47...Bb3–+ (47...Bb3 48.h5 a4–+) 0–1. Woschkat,Karl_Heinz – Nabel,Matthias, 1997.

6.e4 Nc6 =.

6.e4 Nd7 7.f4 (7.Nf3= Ne5 8.Ne5 Be5 9.Be5 de5 10.Qa4 c6 11.Nc3; 7.Bc3 de5 8.Nf3 Nh6 9.Nbd2 0–0 10.Qa4 c5 11.Rd1) 7...Nb6 8.Qc2 de5 9.fe5 c6 10.Nd2 Nh6 11.Ngf3 Nd7 12.h3 Qc7 13.Qc3 c5 14.b5 Nf8 15.a4 b6 16.a5+/– Qb8 17.Be2 Bd7 18.ab6 ab6+/– 19.0–0 Ne6 20.Ra8 Qa8 21.Ra1 Qb8 22.g3 Be5?? 23.Ne5 Nd4 24.Qd3 Qe5 25.Bd4 cd4 26.Ra8 Ke7 27.Rh8 Qh8 28.Nf3 Bh3 29.Nd4 Qf6+/– 30.Nc6 Ke8? 31.Qa3 Qe6 32.Qa8 Qc8 33.Qa7 Ng4?? 34.Qe7 1–0. nbh999 (2145) – Bob Davidson (1700), ChessWorld.net, 2003.

4.e3 b6

5.Nc3 Bb7 6.Qc2 Bg7 7.Nf3 Nf6 8.Be2 0–0 9.h4 h5 10.a3 Nbd7 11.0–0–0 (11.0–0!?=) 11...a5 12.d4 (better is 12.b5!?+=) 12...ab4–/+ 13.ab4 ed4 14.ed4 Re8 15.d5 Ng4 16.Bd3 Nde5 17.Ng5 Nd3 18.Rd3 Ne5 19.Rg3 Nc4 20.Nf7 Qf6 21.Qg6? (better is 21.Rf3 Qd4 22.Ng5–+) 21...Qg6 22.Rg6 Kf7 23.Rg3 Nb2 24.Kb2 Re2 25.Kb3 Rf2 (better is 25...Bc3!? 26.Kc3 Bd5 27.b5–+) 26.Rc1 (26.Rd1 Bf6–+) 26...Bc3 (26...Bc3 27.Rf3 Rf3 28.gf3 Bd5 29.Kc3 Ra3 30.Kd2 c5–+) 0–1. combijack (1760) – mischo (1770), gameknot.com, 2010.

5.d4 ed4?? (5...Bf5 6.Nf3 Bg7 7.Be2+=) 6.Bd4 (6.Qd4 Nf6 7.Qf6 Rg8+–) 6...Nf6?? (6...f6+=) 7.Nf3 (better is 7.Qf3 Bb7 8.Qb7+– (8.Bf6?! Bf3 9.Bd8 Bg7 10.Nf3 Kd8+/–; worse is 8.Qf6 Qf6 9.Bf6 Rg8+–)) 7...Bg7 8.Nbd2 0–0 9.Be2 c5 10.bc5 bc5 11.Bc3 Nc6 12.0–0 Bb7 13.h3 d5 14.cd5 Qd5 15.Qc2 Rfe8 16.Rfd1 Nd4 17.Bd4 (worse is 17.ed4 Re2 18.Re1 Rae8 19.Re2 Re2+=) 17...cd4 18.Bc4 d3 19.Qd3 (worse is 19.Bd5 dc2 20.Bb7 cd1R 21.Rd1 Rab8–/+; 19.Bd3?! Rac8 20.Bc4 Qh5+/–) 19...Qd3 20.Bd3 Ne4 21.Be4 Be4 22.Rac1 Bd3 23.Nb3 Bb5 24.Rc5 a6 25.Nbd4 Rad8 26.Rdc1 h6 (better is 26...Bf8!? 27.R5c3 Kg7+/–) 27.Nb5+– ab5 28.Rb5 Ra8 29.Rc2 Red8 30.g3 Rd1 31.Kg2 Ra1 32.h4 R1a2 33.Ra2 Ra2 34.h5 Kh7 35.hg6 Kg6 36.Nh4 Kh7 37.Rb7 Kg8 38.Nf5 Bc3? (better is 38...Ra5 39.e4 Ra2+–) 39.Nh6 (39.Nh6 Kg7 40.Nf7+–) 1–0. orangutandu – penterakt, internet, 2013.

5.Nf3 Bb7 6.Be2 Nf6 7.0–0 Bg7 8.d3 0–0 9.Qc2 Nc6 10.a3 a6 11.Nbd2 d5? (11...Re8 12.Rfe1=) 12.cd5 (better is 12.Ne5!? Ne5 13.Be5 dc4 14.Nc4+/–) 12...Qd5 13.e4 Qd7 14.Be5 Ne5 15.Ne5 Qe7 16.Nef3 h6 17.Rac1 Rac8 18.Ne1 (18.Nc4 Nd7+=) 18...Rfe8 (better is 18...c5 19.Qb3 cb4 20.Rc8 Rc8 21.ab4 Nd5=) 19.f3?? (19.Nc4 Qe6+=) 19...Nh5 (19...Nd5 20.Qb3–/+) 20.Nc4 (20.f4 c5 21.Bh5 cb4=) 20...Nf4 (20...Bd4!? 21.Rf2 Nf4–/+) 21.Qd2 Qg5 22.Kh1?? (better is 22.Rc2+=) 22...Qg2?? (better is 22...Ne2 23.Qg5 hg5–+) 23.Ng2+– (23.Ng2 Ne6 24.f4+–) 1–0. ourang – schizoftenic, internet, 2013.

5.Nf3 Bg7

6.Nc3 Bb7 7.Qc2 Nf6 8.Be2 0–0 9.a3 Nbd7 10.h4 h5 11.0–0–0 (11.0–0!?=) 11...a5 12.b5 Nc5 13.d4 ed4 14.ed4 (worse is 14.Rd4 Ng4 15.Rf1 Bd4 16.ed4 Ne6–/+) 14...Nce4 15.Bd3 Nc3 16.Bc3 Ng4 17.Kb2 Re8 18.Rde1 Qd7 19.Bg6?? (better is 19.d5=) 19...fg6–+ 20.Qg6 Nf2 (better is 20...d5 21.Ne5 Ne5 22.Re5 Re5 23.de5 d4–+) 21.Rhf1?? (better is 21.Ng5!? Bg2 22.Qh7 Kf8 23.Rhg1 Re1 24.Re1=) 21...Re1 (better is 21...Be4 22.Qh5 Nd3 23.Ka2 Ne1 24.Re1–+) 22.Ne1? (22.Re1 Qf7 23.Qf7 Kf7–+) 22...Qg4 (better is 22...Nd1 23.Kb3 a4 24.Kb4 d5–+) 23.Qc2?? (23.Qg4 Ng4 24.Rf5 Ne3 25.Rh5 a4–+ (25...Ng2 26.Ng2 Re8 27.Ne1+=)) 23...Bd4 (better is 23...Nd1 24.Kc1 Nc3 25.Qc3 Bh6 26.Kb1 Qd1 27.Ka2 Qe2 28.Nc2 Qf1–+) 24.Rf2 Bf2 25.Qf2 Rf8 26.Qe3 Bg2 27.Qh6 Kf7 28.Qh7 Ke8 29.Qc7 Rf2 30.Nc2 Qe2 31.Qc8–/+ Ke7 32.Qc7 Ke6 33.Qc8 Kf7 34.Qd7 Qe7 35.Qe7 Ke7 36.Kc1? Rf3 37.Bd4 Rf4 38.Bb6 Rc4–+ 39.Kd2 a4?? 40.Ne3+= Rc8? 41.Ng2+– Rb8 42.Ba5 Rb5+= 43.Bb4 Rf5 44.Ne3 Rf4 1–0. combijack (1835) – mischo (1705), gameknot.com, 2009.

6.Be2 Ne7 7.d3 a6 8.Nbd2 Nec6 9.a3 0–0 10.h3 (10.0–0 Re8+=) 10...Bb7 11.0–0 Re8 12.Qc2 Ne7 13.d4 White plans c5 13...Nc8 14.de5 de5 15.Rfd1 Qe7 16.Ne4 Nc6 (16...f5 17.Nc3+=) 17.c5 b5 18.Rd2 N8a7 19.Rad1 Rab8? (better is 19...Rad8!?+=) 20.Rd7+– Qe6? (better is 20...Qf8 21.Rc7 Re7 22.Re7 Qe7+–) 21.Nfg5 (21.Nfg5 Nd4 22.Ne6 (22.Bd4 Qd7 23.Be5 Qe7 24.Bg7 Kg7 25.Qc3 Qe5+/–) 22...Nc2 23.Nc7+–; 21.Rc7?! Rf8+–) 1–0. GuestCLWV – Lalubuharihamni, freechess.org, 2017.

6.Be2 Nf6 7.Nc3 0–0 8.0–0 Be6 9.b5 Nbd7 10.d4 Bg4 11.Qc2 Re8 12.Rad1 h6 13.de5 Ne5 14.Ne5 Be2?? (better is 14...Re5 15.Bg4 Ng4+/–) 15.Nc6 (better is 15.Ne2 a6 16.Nc6+–) 15...Bd1–/+ 16.Rd1 Qd7 17.Nd5 Nd5 18.Bg7? (18.cd5 Bb2 19.Qb2 a6–/+) 18...Kg7 (better is 18...Ne3!? 19.fe3 Kg7 20.Qc3 f6–+) 19.Rd5 Qe6 20.Nd4 Qf6 21.Nc6 a6 22.Rd4 ab5 23.cb5 h5 24.g3 Qe6 25.a4 Qd7 26.Qc3 f6 27.Qc4 Re6 28.Qc3 Rae8 29.Rf4 Qf7 30.Rc4 d5 31.Rb4 Re4 32.Nd4 h4 33.Kg2 hg3 34.hg3 Rh8 35.Rb1 Qd7 36.Rh1 Rh1 37.Kh1 Re8 38.Kg1 Rh8 39.Nf3? (39.Qc7 Qc7 40.Ne6 Kf7 41.Nc7 Rd8–/+) 39...Rh5 40.Kf1 Qd6 41.Nd4 Re5 42.Ke2 Kf7 43.f3 Rh5 44.g4 Rh1 Do you see the mate threat? 45.f4 Rh3 46.g5? (better is 46.Nf3–+) 46...Qf4! The mate threat is Rh2 47.gf6 (47.ef4 A pinning theme 47...Rc3) 47...Rh2 48.Kd1 Qg4 0–1. Reimer,Karl – Lozar,Peter, Mehlingen PSB–ch HT2, 1999.

4.e3 Bg7

5.a3 Ne7 6.f4 Nd7 7.Nf3 0–0 8.fe5 Ne5 9.Ne5 de5 10.d3 Be6 11.Be2 Nf5 12.Qd2 Qh4 13.Kd1 Bh6 14.g3 Ne3 15.Qe3 Qh3 16.Qf2 Rad8 17.Kc2 b6 18.Nd2 a5 19.Ne4 ab4 20.Bg4 Bg4 21.ab4 f5 22.Nc3 e4 23.Nd5 ed3 24.Kd3 c6 25.Qb6 f4 26.Qc6 Bf5 27.Kc3 Bg7 28.Kb3 fg3 29.Bg7 gh2 30.Bc3 Be4 31.Ne7 Kf7 32.Qe4 Rfe8 33.Raf1 Qf5 34.Rf5 1–0. amator111 – taw3, internet, 2013.

5.Qb3 Be6 6.Nf3 Ne7 7.d4 e4 8.Nfd2 d5 9.b5 b6 10.a4 a6 11.Nc3 ab5 12.ab5 Ra1 13.Ba1 0–0 14.Be2 c6 15.bc6 Nbc6 16.cd5 Bd5 17.Nd5 Qd5 18.Qd5 Nd5 19.Ne4 f5 20.Ng5 Ra8 21.0–0 h6 22.Bc4 Nce7 23.Ne6 Kf7 24.Nc7 Rd8 25.Rb1 Kf6 26.Nd5 Nd5 27.Bd5 Rd5 28.Rb6 Kg5 29.g3 h5 30.h4 Kh6 31.Kg2 Ra5 32.Bb2 Rd5 33.Ba3 Ra5 34.Be7 Ra7 35.Bg5 Kh7 36.Re6 Rd7 37.Kf3 Bf8 38.Bf6 Bb4 39.Re8 Kh6 40.Rh8 Rh7 41.Rh7 Kh7 42.e4 fe4 43.Ke4 Kg8 44.f3 Kf7 45.Bg5 Be1 46.g4 Bg3 47.gh5 gh5 48.Kf5 Bh2 49.d5 Bg1 50.d6 Ke8 51.Ke6 Bb6 52.d7 Kf8 53.f4 Kg7 54.d8Q Bd8 55.Bd8 Kg6 56.f5 Kg7 57.Bf6 Kf8 58.Bg5 Kg8 59.Kf6 Kf8 60.Kg6 Kg8 61.Kh5 Kh7 62.f6 Kg8 63.Kg6 Kf8 64.Bh6 Kg8 65.f7 Kh8 66.f8Q 1–0. orangutandu – janjas, internet, 2013.

5.Qb3 Ne7 6.Nf3 Be6 7.d4 0–0 8.d5 Bd7 9.Bd3 f5 10.e4 f4 11.Nbd2 c6 12.c5 cd5 13.ed5 Bg4 14.Be4 a5 15.Ne5 a4 16.Qc4 Bf5 17.Bd4 Kh8 18.Nef3 Be4 19.Ne4 Nf5 20.Bg7 Kg7 21.Nfg5 Re8 22.0–0 h6 23.Ne6 Re6 24.de6 d5 25.Qc3 Kf8 26.Qf6 Qf6 27.Nf6 Ke7 28.Nd5 Kd8 29.Rad1 Na6 30.a3 Rb8 31.Nf4 Ke8 32.Rfe1 Nc7 33.Ng6 Rd8 34.Rd8 Kd8 35.g4 Ng7 36.e7 Ke8 37.f4 Kf7 38.f5 h5 39.g5 Nf5 40.Ne5 Ke7 41.g6 Kf6 42.h4 Nh4 0–1. darekt1973 – jacek0575, internet, 2014. (=1.c4 e5 2.e3 d6 3.b4 g6 4.Bb2 Bg7)

5.b5 a6 6.Nf3 ab5 7.cb5 Bg4 8.Be2 Bf3 9.gf3 c6 10.f4 Nf6 11.fe5 de5 12.Qb3 0–0 13.Nc3 cb5 14.Bb5 e4 15.0–0–0 Nc6 16.d3 Na5 17.Qb4 Qb6 18.a4 ed3 19.Rd3 Rad8 20.Rhd1 Rd3 21.Rd3 Ng4 22.Nd5 Qa7 23.Bg7 Kg7 24.Qg4 Rc8 25.Kb1 b6 26.Qd4 Kg8 27.Ne7 Qe7 28.Qb6 Qb4 29.Ka2 Rc2 30.Ka1 Qb2 0–1. playok117 – ktm7, internet, 2014. (=1.c4 e5 2.e3 d6 3.b4 g6 4.b5 Bg7 5.Bb2 a6)

5.b5 f5 6.Nf3 Be6 7.Be2 h6 (7...Nd7 8.0–0=) 8.a4 (8.0–0 Nd7=) 8...Nd7 9.0–0 Ne7 (9...Qf6 10.a5=) 10.Qc2 (10.d4 0–0+=) 10...0–0 (10...c5 11.a5+=) 11.d3 (11.d4 a6+=) 11...Kh7 (11...d5 12.d4 e4 13.Nfd2=) 12.Nbd2 Nc5 (12...a6 13.d4=) 13.a5 (better is 13.d4 Nd7 14.a5+=) 13...Rf7 (13...f4 14.d4 ed4 15.ed4+=) 14.b6 (better is 14.d4!? Ne4 15.Ne4 fe4 16.Qe4+–) 14...c6 (14...cb6 15.d4 ed4 16.ed4=) 15.Nb3 (15.d4 Nd7+=) 15...Nb3 (15...ab6 16.ab6 Ra1 17.Ra1 Nb3 18.Qb3=) 16.Qb3 ab6 17.ab6 Ra1 18.Ra1 Nc8 19.Ra8 (19.Rb1 Qb6 20.Qb6 Nb6 21.Be5 de5 22.Rb6 f4=) 19...Qb6 20.Qb6 (20.Qc2 c5 21.Bc3 Qc6+=) 20...Nb6–/+ 21.Re8 Bd7 22.Rb8 Be6 (22...Bc8 23.c5 dc5 24.Ne5+=) 23.Re8 Bc8 24.c5 (24.Kf1 Bd7 25.Rb8 e4 26.Bg7 ef3 (26...Rg7?! 27.de4 fe4 28.Nd2=; 26...Kg7?! 27.de4 fe4 28.Nd2=) 27.Bf3 Kg7 28.Rb7 Na4–+) 24...dc5 (24...Bd7 25.Rb8 Na4 26.Ba3 Nc5 27.Bc5 dc5 28.Rb7+=) 25.Ne5+= Be5 (better is 25...Rc7+=) 26.Be5+/– (26.Re5?! Na4 27.Ba1 Bd7=) 26...Nd7?? (better is 26...g5+/–) 27.Rh8 1–0. GuestTLYF – GuestBYKK, freechess.org, 2016.

5.b5 Nh6 6.Nf3 Qe7 7.Nc3 c6 8.a4 Bg4 9.Be2 Nd7 10.0–0 0–0 11.d4 e4 12.Nd2 Be2 13.Ne2 d5 14.cd5 cd5 15.Rb1 Rac8 16.Qb3 Qe6 17.Ng3 f5 18.Rfc1 f4 19.ef4 Nf6 20.Rc8 Rc8 21.Rc1 Rc1 22.Bc1 Qg4 23.Ndf1 Qh4 24.Be3 Nhg4 25.h3 Ne3 26.Ne3 Qf4 27.Qc3 h5 28.Qc8 Kh7 29.Ne2 Qd6 30.Qb7 h4 31.Qa7 Nd7 32.a5 Nb8 33.b6 Kh6 34.a6 1–0. elektrooon – supaturk, internet, 2013.

5.Qc2 f5 6.Ne2 Nf6 7.d3 0–0 8.Nd2 Nbd7 9.Nc1 Qe7 10.e4 (10.Be2 a5 11.b5 a4=) 10...Nh5 11.Ncb3 Bh6 12.g3 Ndf6 13.h3 Be6 14.Be2 Rf7 (14...Ng7!?+=) 15.ef5+= gf5 16.Qd1 Ng7 17.g4 e4 (17...Re8 18.Rg1 fg4 19.hg4=) 18.de4 Ne4 19.Ne4 fe4 20.Qd4 Qh4 21.0–0?? (better is 21.Qe4 Re8 22.Kd1+= (22.Qb7?? Qf2 23.Kd1 Bd5–+)) 21...e3–+ (21...Qh3?! 22.Qe4 Re8 23.Qg2+=) 22.g5 Qg5 23.Kh1 ef2 24.Rf2 Rf2 (24...Qg3 25.Rg2 Qh3 26.Rh2–+) 25.Qf2–/+ Rf8 26.Qd4 (26.Qg2!?–/+) 26...Qg3 27.Bg4?? (better is 27.Qc3 Qc3 28.Bc3 Bh3 29.Bd4–+) 27...Rf2 28.Be6 Kf8 (better is 28...Ne6!? 29.Qg4 Qg4 30.hg4 Rb2 31.Re1–+) 29.Qf2 Qf2 30.Bg7 Bg7 (worse is 30...Kg7 31.Bd5 Bf4 32.Bg2–+) 31.Rg1 Qa2 (better is 31...Be5!? 32.Rg2 Qe1 33.Rg1 Qe4 34.Rg2 Qb1 35.Rg1 Qa2 36.Rg2 Qb3 37.Rf2 Ke7 38.Bg4 Qb4 39.Kg2–+) 32.Rf1 Ke7 33.Nc1 Qd2 34.Bg4 (34.Bd5 Be5 35.Bg2 Qb4–+) 34...Be5 35.Ne2 Qb4 36.Bf3 (36.Rc1 Qb3 37.Kg2 c6–+) 36...c6 (36...Qc4!? 37.Kg2–+) 37.Rc1 a5 38.c5 (38.Kg2 a4 39.Be4 a3–+) 38...d5 39.Bh5 (39.Kg2 a4 40.Rc2 a3–+) 39...a4 40.Rf1 a3 41.Nc1 (41.Rf7 Ke6 42.Rf1 a2–+) 41...Qd2 (41...Qe4 42.Rf3–+) 42.Rf7 (42.Ne2 a2 43.Rf7 Ke6–+) 42...Ke6 43.Ne2 a2 (43...a2 44.Rf1 Qc2–+) 0–1. Berechet,Otiliu (2220) – Ionescu,Viorica (2170), Bucharest Fest IM (Women), 1998. (=1.c4 e5 2.e3 d6 3.b4 g6 4.Bb2 Bg7)

5.Qc2 Nf6 6.Nf3 0–0 7.e4 (7.Nc3 Re8 8.e4 Nc6 9.a3 a5 10.b5 Nd4 11.Qd1 Be6 12.Bd3 Nh5 13.Nd4+=) 7...Re8 8.Be2 Nh5 9.0–0 Nf4 10.d3 Bg4 11.a3 Qf6 12.Nc3 Ne2 13.Qe2 =.

5.Nc3 b6 6.Qc2 Bb7 7.Nf3 Nf6 8.Be2 Nc6 9.a3 0–0 10.h3 a5 11.b5 Ne7 12.0–0 Rc8 13.Ng5 h6 14.Nge4 Ne4 15.Ne4 c6 16.Qd3 d5 17.cd5 cd5 (worse is 17...Qd5 18.Qd5 cd5 19.Nd6+=) 18.Ng3 e4 19.Qb3 d4 20.ed4 Bd4 21.Bd4 Qd4 22.Qe3 Qe3 23.de3 Rc3 24.Rfd1 Bd5 25.Rd4 f5 26.a4 Rfc8 27.Rad1 R8c5 28.R1d2 Kf7 29.Kh2 Ke6 30.Nf1 f4?? (better is 30...g5+=) 31.ef4+/– Nf5 32.Bg4 R3c4 33.Ne3 Rd4 34.Rd4 h5 35.Bf5 (35.Rd5?! hg4 36.Rc5 bc5 37.Nf5 gf5 38.hg4 fg4+–; 35.Nd5 hg4 36.Nc7 Rc7 37.Re4 Kd7 38.hg4 Nd6–/+) 35...gf5 36.Kg3 Bb3 37.Kh4 Rc8 38.Kh5 Rh8 39.Kg5 (better is 39.Kg6!? Rh4 40.g3 Rh3 41.Nf5 Bd5+–) 39...Rg8 40.Kh4 Rc8? (40...Rh8 41.Kg3 Rh5+–) 41.g4 fg4 42.hg4 Bc2 43.g5 Rc3 (43...Kf7 44.f5+–) 44.Kg4 White prepares f5 (44.f5 Kf7 45.g6 Ke8+–) 44...Bb1 (44...Rc5 45.Nc2 Rc2 46.Re4 Kd5 47.f3+–) 45.f5 Kf7 46.g6 Ke8 47.f6 Rc5 (47...Ba2 48.Nf5 Be6 49.Rd6 Bf5 50.Kf5+–) 48.Rd6 (better is 48.f7 Ke7 49.Rd8 Kd8 50.f8Q Kc7 51.Qf7 Kb8+–) 48...Ba2 49.Nf5 Bb3 (49...Rc7 50.Rb6 Rc5 51.Rb8 Kd7+–) 50.Ng7 Kf8 51.Rd8 1–0. Schmidt,Hans_Erwin(35Mark) (1760) – Meeh,Rudolf (1725), 12sen.WttgEM/Ellwangen, 2000.

5.Nc3 c6 6.Nf3 Ne7 7.Be2 0–0 8.0–0 Na6 (8...Nf5 9.Qc2=) 9.Qb3 (9.b5 Nc7+=) 9...h6 10.h3 (10.a3 g5+=) 10...Be6 (10...Nf5 11.d3=) 11.d4+= b5 (11...ed4 12.Nd4 c5 13.Ne6 fe6 14.b5+=) 12.d5 bc4 13.Qc4 (worse is 13.Bc4 Nd5 14.Ba6 Ne3+=) 13...Bc8 14.dc6 Qc7 (better is 14...d5!? 15.Qb3 d4+/–) 15.Rfc1+– Qc6 (15...Qd8 16.b5 Be6 17.Qh4+–) 16.Qc6 Nc6 17.b5 e4 (17...Ncb4 18.ba6 Ba6 19.Ba6 Na6 20.Nd5+–) 18.Nd2 (worse is 18.bc6 ef3 19.Bf3 Rb8+–; 18.ba6?! ef3 19.Bf3 Bd7+/–) 1–0. Janek – Tempoh, internet, 2017.

5.Nc3 f6 6.Nf3 Be6 7.d4 c6 8.Be2 Ne7 9.0–0 Bf5 10.e4 Bd7 11.d5 0–0 12.Qb3 a6 13.a4 Be8 14.dc6 bc6 15.Rad1 Bf7 16.Qc2 Qc7 17.c5 dc5 18.bc5 Nd7 19.Ba3 Rfd8 20.Na2 Bf8 21.Nb4 Nc8 22.Na6 Qa7 23.Bc4 Kg7 24.Bf7 Kf7 25.Nb4 Qc7 26.Nd3 Nb8 27.Rd2 Na6 28.Rfd1 Qa7 29.Nde5 fe5 30.Rd8 Bc5 31.Ne5 Kg7 32.Nc6 Qb6 33.Bb2 Kh6 34.Qd2 g5 35.h4 1–0. zagrakto – miziii, internet, 2014.

5.d3 Nc6 6.Qb3 Be6 7.Nf3 Nf6 8.b5 Na5 9.Qc2 0–0 10.Be2 d5 (10...a6 11.a4+=) 11.c5 (11.Be5 c6 12.Na3 cb5 13.cb5 Nh5+=) 11...Ng4 (11...e4 12.de4 Ne4 13.Bg7 Kg7 14.Nbd2=) 12.Qc3 (12.h3!? Nh6 13.Qa4+=) 12...b6 13.h3 Nf6 14.c6 (better is 14.0–0=) 14...Qe8?? (better is 14...e4 15.de4 de4–/+) 15.Qe5?? (better is 15.Ne5 a6 16.Na3+/–) 15...Nh5–+ 16.Qh5 (16.g4 Be5 17.Be5 a6 18.gh5 ab5–+) 16...Bb2 (better is 16...gh5 17.Bg7 Kg7 18.Nc3–+) 17.Qh4 Ba1 0–1. croach (2355) – taff (2130), net–chess.com, 2015.

5.d3 Be6 6.Nf3 Nf6 7.Be2 Nc6 8.b5 Ne7 9.d4 ed4=.

5.d3 f5 6.g3 Nf6 7.Bg2 0–0 8.Ne2 c6 9.0–0 Qc7 10.Nbc3 ½–½. Guzik,Jolanta (2135) – Janus,Przemyslaw (2145), OPEN A – XVII Miedzynarodowy Festiwal Poland, 2012.

5.d3 Nf6 6.Be2 (6.Nf3 Nc6 7.b5 Ne7 8.d4 0–0 9.de5 Nd7=) 6...0–0 7.Nf3 Nc6 8.b5 Ne7 9.0–0 a6=.

5.d4 a5 6.b5 ed4 7.Bd4 Nf6 8.Nf3 0–0 9.Be2=.

5.d4 Qe7 6.d5 (6.Nf3 Nf6 7.Be2 ed4 (7...0–0 8.0–0 Re8 9.Nc3 Bg4 10.h3 Bf5 11.Qb3+=; 7...e4 8.Nfd2 0–0 9.0–0 c5 10.a3 cd4 11.ed4=) 8.Nd4 0–0 9.a3 c5 10.Nc2 Rd8 11.0–0=; 6.Be2 e4 7.Qc2 (7.Nc3 Nf6 8.Rc1 0–0 9.Qc2 Bf5 10.h3 h6 11.g4=; 7.Nd2 Nf6 8.a3 0–0 9.Rb1 a5 10.Qa4 Nbd7 11.ba5=) 7...Nf6 8.Nc3 0–0 9.a3 c5 10.bc5 dc5 11.Rd1=) 6...f5 (6...Nf6 A) 7.Be2 e4 (7...0–0) 8.Nc3 0–0 9.a3 a5 10.b5 Nbd7 11.Na4+=; B) 7.a3 0–0 (7...a5 8.Nf3 0–0 9.Be2 ab4 10.ab4 Ra1 11.Ba1=) 8.Nf3 a5 9.Be2 ab4 10.ab4 Ra1 11.Ba1=; C) 7.Nf3 a5 (7...0–0 8.Be2 a5 9.ba5 Ra5 10.0–0 Bf5 11.Nc3=) 8.b5 Nbd7 9.Nc3 Nc5 10.Na4 Na4 11.Qa4=) 7.Nd2 (7.Nf3 a5 (7...Nf6 8.Be2 a5 9.a3 0–0 10.0–0 Bd7 11.Nc3=) 8.Qa4 Bd7 9.b5 Nf6 10.Be2 0–0 11.0–0=) 7...Nf6 (7...a5 8.Qa4 Bd7 9.b5 Bc8 10.b6 Kf7 11.c5=) 8.Ne2 (8.Be2 0–0 9.Ngf3 Nbd7 10.0–0 b5 11.cb5=) 8...0–0 9.Qc2 (9.a3 a5 10.Nf3 f4 11.ef4+=) 9...a5 (9...a6 10.Nc3 c6 11.Bd3=) 10.b5 c6 (10...Nbd7 11.Nc3=) 11.bc6 (11.Nc3 cb5 12.cb5 Nbd7=) 11...bc6+= 12.Nc3 Bb7 13.Qb3 Na6 14.Ba3 Rab8 (14...Rfb8 15.e4+=) 15.Qb6 Nb4 (worse is 15...cd5 16.Bd6 Qd8 17.c5+/–) 16.Bb4 ab4 17.Qb4 cd5 18.cd5 Kh8 (18...Bd5 19.Nd5 Nd5 20.Qc4+=) 19.Bc4 (19.Rb1 Kg8+=) 19...e4 (19...Bd5!? 20.Nd5 Nd5+=) 20.Rb1+= Ng4 21.0–0. Roczniak,Jan – Dacka,J, Radom Poland, 1983.

5.Be2= a5 6.b5 Nd7 7.Nc3 Ngf6 8.d3 0–0 9.Rb1 Nc5 10.Nf3 Bf5 11.0–0 e4 12.de4 Nfe4 13.Ne4 Ne4 14.Bg7 Kg7 15.Qd4 Qf6 16.Qf6 Kf6 17.Rbc1 b6 18.Nd4 Bd7 19.a4 Nc5 20.Bd1 Rae8 21.Bc2 Kg7 22.Rfd1 Re5 23.Rd2 Rfe8 24.Rcd1 h6 25.Nf3 R5e7 26.Nd4 f5 27.Nf3 Be6 28.Rd4 Kf6 29.Rf4 g5 30.Rfd4 Bf7 31.Ra1 Bh5 32.Rd5 Bf3 33.Rf5+/– Kg7 34.Rf3 Ne4 35.Rd1 Re5 36.Rh3 Nc3 37.Rd2 Ne4 38.Rd4 R8e7 39.f4 R5e6 40.f5 Re5 41.Rf3 Kf6 42.Kf1 h5 43.Ke1 h4 44.Ke2 Nc5 45.g3 hg3 46.hg3 Ne4 47.g4 Kg7?? 48.Be4 (48...Kf6 49.Kd3+–) 1–0. Bonetti,Shane – Rubenstein (1980), ICC, 2002.

5.Be2= Na6 6.a3 =+.

5.Be2 Nc6 6.b5 Nce7 7.Nf3 Nf6 8.0–0 (8.Nc3 0–0 9.d4 (9.0–0 a6 10.ba6 Ra6 11.d4 ed4 12.Nd4 Be6 13.Rb1 h6 14.Ba1 Ra7=) 9...ed4 10.Nd4 Nf5 11.0–0 a6 12.a4 ab5 13.ab5 Ra1 14.Ba1 Re8+=) 8...b6 (8...a6!?= A) 9.a4 e4 10.Ng5 d5 11.ba6 ba6 12.f3 Rb8 13.Qc2 Nf5 14.Nc3 d4–/+; B) 9.d4 e4 10.Nfd2 ab5 11.cb5 0–0 12.Qc2 Bf5 13.a4 Ned5 14.a5 Qe7+=; 8...e4 9.Ne1 d5 10.f3 0–0 11.fe4 Ne4 12.Bg7 Kg7 13.Qc2 Bf5 14.d3 Nf6+/–) 9.d4+= ed4 (9...e4 10.Nfd2 a6 11.ba6 Ba6 12.Nc3 d5 13.cd5 Be2 14.Qe2 Nfd5+/–) 10.Nd4 Bb7 11.Bf3 Bf3 (11...Qb8 12.Nc3 0–0 13.e4 Re8 14.Re1 Nd7+=) 12.Nf3 (12.Qf3 0–0+= 13.Rd1 Re8 14.Nc3 Nd7+=) 12...0–0+= 13.Bf6 (13.Qd3 Re8+= (13...a6 14.e4 Re8+=) 14.a4 a6+=; 13.Re1 a6 14.e4 Re8+=) 13...Bf6= 14.Nd4 a6 15.Qc2 ab5 16.cb5 Ra5 17.Rc1 (17.Qd3 Bd4 18.ed4 Nd5=) 17...Nd5 (better is 17...Bd4!? 18.ed4 Rb5+=) 18.Nc6+= Qa8 19.Na5 Qa5 20.Nd2 (better is 20.Qb3!? Ba1 21.Qd5=) 20...Ba1–/+ 21.Ra1 Qb5 22.e4 Nb4 (better is 22...Nf4!?–/+) 23.Qc7= Qd3 24.Nf3 Qe4 25.Qd6 Na2 26.Qb6 Nc3 27.Re1 ½–½. Bonetti,Shane – artique (1970), ICC, 2002.

5.Be2 Be6 6.Nf3 Nc6 (6...Na6 7.d4=) 7.a3 (7.b5 Nce7+=) 7...a6 (7...Nf6 8.0–0=) 8.0–0 Nge7 9.d4 ed4 10.Nd4 Qd7 11.Qd2 0–0 12.Ne6 (12.Nc6 Qc6 13.Bf3 A) worse is 13...Qc4 14.Rc1 (14.Bb7?! Bb2 15.Qb2 Ra7+=) 14...Qb5 15.Bg7 Kg7 16.Rc7+/–; B) 13...Qb6 14.Bg7 Kg7+=) 12...Qe6 (12...fe6 13.Bg7 Kg7 14.Rd1+=) 13.Bg7 Kg7 14.Nc3 Kg8 (14...Rfe8 15.Nd5 Rac8 16.Qc3 Qe5 17.Qd3+=) 15.Qc2 (15.Nd5 Rac8+=) 15...Ne5 16.Na4 (16.Rfc1+=) 16...b5? (better is 16...f5!?=) 17.cb5+/– ab5 18.Bb5 Ra7 19.Nb2 (19.Nc3 c6 20.Bd3 f5+/–) 19...Rfa8 20.a4 Nc8 (20...Nd5 21.Qd2+/–) 21.Nd3+– Nd3 22.Qd3 Ne7 23.Rfc1 d5 24.Qb3 c6 (24...Rb7 25.Qc3+–) 25.Bd3 White prepares the advance b5 25...Nc8 26.b5 (26.a5 Ne7+–) 26...Rb8 (26...cb5 27.Bb5 Ne7 28.Qd3+–) 27.Qd1 cb5 28.Bb5 Nd6 (28...Ne7 29.Qd4 Rab7 30.Rc5+–) 29.Bc6 (29.Rc5+–) 29...Nf5? (better is 29...Ra5!?+/–) 30.Qd5 Qd5 31.Bd5 Ra5 32.Bc6 Rc8 (32...Rb2 33.Kf1+–) 33.Bd7 Rc1 34.Rc1 Nd6 35.Rb1 (35.Kf1 Kg7+–) 35...Nc4 (35...Kf8+–) 36.Bb5 (36.h3 Kg7+–) 36...Nb6? (better is 36...Na3 37.Rd1 Nb5 38.ab5 Rb5+/–) 37.Ra1 (37.Bc6 Rc5 38.Bb5 Nd5+–) 37...Nd5 38.Ra3 Nc7 39.Be2 Nd5 40.g3 Nb6 41.Bb5 Nd5 (41...Kf8 42.Kg2+–) 42.Rd3 Nc7 43.Rb3 (43.Bc6 Ra6 44.Rc3 Ra5+–) 43...Nd5 (43...Kf8 44.h3+–) 44.e4 Nb6 (44...Nc7 45.e5+–) 45.Rb4 Nc8 46.Rd4 (46.f4 h6+–) 46...Na7 47.Rd5 Kg7 (47...Kf8 48.Kg2+–) 48.Rc5 (48.Kg2 Kf6+–) 48...Kf6 49.f4 Ke6 (49...Nb5 50.ab5 Ke6+–) 50.Bc4 (50.Bc4 Kd6 51.Ra5+–) 1–0. Sebald,Ralph – Ovelgoenne,Michael, Ruhrgebiet–ch U15, 1996.

5.Be2= Bf5 6.Bf3 c6 7.d4 Qc7 8.de5 Be5 9.Nc3 Na6 10.a3 Ne7 11.Be2 0–0 12.Nf3 Bg7 13.0–0 Rad8 14.Qc1 d5 15.cd5 Nd5 16.Ba6 ba6 17.Nd5 Rd5 18.Bg7 Kg7 19.Qc3 Kg8 20.Nd4 c5 21.Rfc1 Rc8 22.Nb3 c4 23.Nc5 Qc6 24.Qc4 Rd6 25.e4 Bg4 26.e5 Rd5? 27.Qg4 (27…Re5 28.Qg3+–) 1–0. Bonetti,Shane – stratosphere (1680), ICC, 2002.

5.Be2= f6 6.d4 Ne7 7.h4 ed4 8.ed4 Be6 9.d5 Bf7 10.h5 Nd7 11.hg6 hg6 12.Rh8 Bh8 13.f4 Nf8 14.Nf3 Qd7 15.Nbd2 0–0–0 16.Kf2 Qg4 17.Qh1 Nd7? (better is 17...Bg7!? 18.Qh4 Qd7=) 18.g3+– Nf5 19.Rg1 Qh5 20.Qg2?? (better is 20.g4 Qh1 21.Rh1+–) 20...Qh7 21.Rh1 Qg8 22.Ng5 Bg7 23.Nf7 Qf7 24.Bg4 Kb8 25.Bf5 gf5 26.Nf3 a6 0–1. typ48 – topolovo, internet, 2013.

5.Nf3 Qd7 6.Be2 f5 7.0–0. casouza (2220) – nwishn (2005), net–chess.com, 2006.

5.Nf3 f6 6.Be2 a6 7.Qc2 b5 (better is 7...Nc6!? 8.b5 ab5 9.cb5 Nce7+=) 8.cb5+/– ab5 9.Bb5 Bd7 10.Be2 Nc6 11.a3 Bf5?? (11...Nce7 12.Nc3+–) 12.d3 (better is 12.Qc6 Bd7 13.Qc4+–) 12...Bd7 13.Nbd2 Nge7 14.0–0 h5 15.Rfc1 h4 16.h3 g5 17.b5 Na5 18.d4 g4 19.Ne1 (better is 19.hg4 c6 20.g5 cb5 21.Ne4+–) 19...gh3+/– 20.Qc7 Qc7 21.Rc7 hg2 22.Kg2 h3 23.Kh2 Ng6? (23...Kd8 24.de5 fe5 25.Rc2+/–) 24.Nef3 (better is 24.de5 fe5 25.Bf3+–) 24...Ke7?? (better is 24...Nf8!?+/–) 25.b6 (better is 25.Rg1 Rh6 26.Bd3 Kd8 27.Rd7 Kd7 28.Bg6 Bh8+–) 25...Nh4? (25...Rac8+–) 26.Bb5 (better is 26.Nh4!? Rh4 27.Bb5 Rd8+–) 26...Nf3 27.Nf3 Rad8 28.Rac1 Nb3 (28...Bf8 29.Ra7 d5 30.de5+–) 29.R1c3 Na5 30.b7 (better is 30.Ra7 Ke6 31.e4 f5+–) 30...Nb7 (30...d5+–) 31.Rb7 ed4 (31...Ke6 32.d5! Kd5 33.Bd7 Rd7 34.Rd7+–) 32.Nd4 f5 (32...Rh5 33.Bd7 Rd7 34.Rcc7 Rc7 35.Rc7 Ke8 36.Rg7+–) 33.Nf5 Kf6 34.Ng7 Kg7 35.Rd7 Rd7 36.Bd7 Kf8 (36...Kf7 37.Rc7 Rf8 38.Bf5 Ke8 39.e4+–) 37.Rc8 Ke7 1–0. ourang – tuisim, internet, 2013.

5.f4 a5 6.ba5 Bf5 7.Qb3 =.

5.f4 ef4?? 6.Bg7+– Qh4 7.Ke2 Bg4 (7...fe3 8.Bh8 Bg4 9.Nf3 Bf3 10.gf3 Qc4 11.Ke3 Qb4 12.Nc3+–) 8.Nf3 Nc6 9.Bh8 f6 (9...Bf3 10.gf3 fe3 11.Ke3+–) 10.Qb3 (10.Nc3!? 0–0–0 11.Qe1 Qh6+–) 10...0–0–0 11.b5 Nd4 (11...Ne5 12.ef4 Bf3 13.gf3 Qf4 14.b6 ab6 15.Qe3 Qc4 16.d3+–) 12.ed4 Re8 13.Kd1 Qe1 (13...Nh6 14.b6! a6 15.bc7 Rh8 16.c5 Bf3 17.gf3 dc5 18.Ba6 ba6 19.Qb8 Kd7 20.Qh8 Kc7 21.Qh7 Kd8 22.Re1 Qe1 23.Ke1+–) 14.Kc2 Bf3 (14...Qe7 15.Nc3+–) 15.Qf3 g5 16.Qh3 Kb8 17.Qh7 1–0. Bonetti,Shane – guest796, ICC, 2002.

5.f4 Qh4 6.g3 Qe7 7.e4 =.

5.f4 Nh6 6.Nf3 Nd7 7.Be2 0–0 8.fe5 Ne5 9.Ne5 de5 10.0–0 c6 11.Na3 Bf5 12.c5 Bd3 13.Nc4 Bc4 14.Bc4 Qh4 15.Qb3 Rad8 16.d3 (16.Rad1 b6 17.cb6 ab6+=) 16...Rd7 (better is 16...b5!? 17.cb6 ab6=) 17.Rf3 Qe7 18.e4 b5 19.cb6 ab6 20.b5 c5 21.a4 Ra7 22.Bc3 White prepares a5 22...Rfa8 23.Bd5 Rb8 24.a5 Kf8 (24...ba5 25.b6 (worse is 25.Ra5 Ra5 26.Ba5 c4+=) 25...Ra6 26.b7+/–) 25.ab6 (25.Bd2!? g5+–) 25...Ra1+/– 26.Ba1 Rb6 27.Bc3 Qa7 (27...Qd7!?+/–) 28.Qc4+– Rb8 29.h3 Ke8 (29...Kg8 30.Bd2 Qa1 31.Bc1+–) 30.Rf1 f5 31.Ra1 (31.Bc6 Kf8+–) 31...Qe7 32.Ra6 Kf8 33.b6 Nf7?? (33...Bf6 34.Bd2 f4+–) 34.Ra7 Nd6 35.Re7 Nc4 36.Rf7 Ke8 37.Rg7 (37.Rg7 Nb6 38.Rg8 Kd7 39.Rb8 Nd5 40.ed5+–) 1–0. Kreuzer,Uwe – Hoffmann,Michael (2475), Mannheim GER, 1995.

5.b5 b6

6.Qf3 d5 7.cd5 Nd7 8.e4 Rb8 9.Nc3 Ndf6 10.Bc4 Bg4 11.Qg3 h5 12.Qe5 Ne7 13.Qg3 h4 14.Qe3 Bh6 15.Qd4 Qd6 16.a4 c5 17.bc6 Nc6 18.Bb5 Kf8 19.Bc6 Rc8 20.Ba3 Qa3 21.Ra3 Bg7 22.Qb4 Kg8 23.h3 Bh5 24.f3 Kh7 25.Nge2 Rhe8 26.0–0 g5 27.Be8 g4 28.hg4 Re8 29.gh5 Nh5 30.d6 Ng3 31.Ng3 hg3 32.d7 Rd8 33.Qe7 1–0. jura1946 – tom999, internet, 2013.

6.Nf3 Bb7 7.Be2 Nf6 8.0–0 h6 9.d4 e4 10.Nfd2 h5 11.d5 Rh7 12.Qc2 Bc8 13.Nc3 Bf5 14.Nce4 Ne4 15.Ne4 Qe7 16.Bg7 Rg7 17.Nd6 cd6 18.Qc3 Rg8 19.Bd3 Qg5 20.e4 Bh3 21.g3 h4 22.f4 Qg4 23.Kf2 Bf1 24.Bf1 hg3 25.Qg3 Qg3 26.hg3 Nd7 27.Be2 Nc5 28.Bf3 Rh8 29.Rh1 Rh1 30.Bh1 Ke7 31.Ke3 Rh8 32.Bf3 Rh2 33.e5 Ra2 34.ed6 Kd6 35.Kd4 f5 36.g4 0–1. olawoj – danchot, internet, 2013.

5.b5 c5

6.Nf3 Be6 7.Be2 Nd7 8.0–0 Nb6 9.Qc2 Nf6 10.a4 0–0 11.a5 Nbd7 12.d4 cd4 13.ed4 e4 14.Nfd2 d5 15.cd5 Bd5 16.Nc3 Rc8 17.Qb1 Re8 18.Nd5 Nd5 19.Ne4 Nf4 20.Bf3 Nb8 21.Qa2 h6 22.Rac1 Rc1 23.Bc1 Ne2 24.Be2 Re4 25.Bf3 Rd4 26.Bb7 Rd1 27.Qc2 Rf1 28.Kf1 Kh7 29.a6 Qb6 30.Qd3 Qc7 31.Be3 Qh2 32.Ba7 Qh1 33.Ke2 Qh5 34.Bf3 Qe5 35.Kf1 Bf8 36.Bb8 Qb8 37.Bc6 Qe5 38.g3 Bb4 39.a7 Qa1 40.Kg2 Qa7 41.Qc4 Be1 42.b6 Qe7 43.b7 Kg7 44.Qd4 1–0. olawoj – marinvictor, internet, 2014.

6.Nf3 Nf6 7.Be2 0–0 8.0–0 h6 9.d4 e4 10.Nfd2 Nbd7 11.Nc3 Re8 12.Qc2 cd4 13.ed4 e3 14.fe3 Re3 15.Rf3 Qe7 16.Re1 b6 17.Qd1 Bb7 18.Re3 Qe3 19.Kh1 Re8 20.d5 Ng4 21.Rf1 Nf2 22.Rf2 Qf2 23.Nde4 Qf4 24.Ba3 Nc5 25.Bc5 bc5 26.Qf1 Qf1 27.Bf1 Be5 28.a4 f5 29.Nc5 dc5 30.Ne2 Bd4 31.a5 g5 32.a6 Bc8 33.Ng3 f4 34.Ne2 Bg4 35.Nd4 cd4 36.h3 Be2 37.Be2 Re2 38.d6 d3 39.d7 d2 40.d8Q Kf7 41.Qd7 Kg6 42.Qd3 1–0. olawoj – darius101, internet, 2013.

5.b5 c6

6.a4 Be6 7.Nf3 d5 8.cd5 Qd5 9.Nc3 Qb3 10.Qb3 Bb3 11.Be2 Nd7 12.d4 ed4 13.Nd4 Ne7 14.bc6 Nc6 15.Nc6 bc6 16.0–0 0–0 17.Bd3 Nc5 18.Be2 Rab8 19.Rfc1 Ba4 20.Ba3 Nb3 21.Na4 Nc1 22.Rc1 Rfd8 23.g3 Rd2 24.Bf3 h5 25.Be7 Rb5 26.Rc6 Ra5 27.Rc8 Kh7 28.Nc5 Rc2 29.Bd5 f5 30.Bg8 Kh6 31.h4 Be5 32.Bg5 Kg7 33.Ne6 Kh8 34.Rc2 Kg8 35.Rc8 Kf7 36.Nf4 Ra1 37.Kg2 a5 38.Nd3 Bg7 39.Rc7 Kg8 40.Nf4 1–0. olawoj – helloyou94, internet, 2013.

6.a4 Ne7 7.Nf3 0–0 8.Be2 a6 9.0–0 ab5 10.ab5 Ra1 11.Ba1 cb5 12.cb5 Be6 13.d4 e4 14.Nfd2 d5 15.Qb3 Nd7 16.Bc3 Qc8 17.Bb4 Re8 18.Nc3 Nb6 19.Bc5 Nc4 20.Bc4 dc4 21.Qb4 Nd5 22.Nd5 Bd5 23.Nc4 Bc4 24.Qc4 b6 25.Rc1 bc5 26.dc5 Be5 27.c6 Kg7 28.g3 f6 29.b6 Re7 30.b7 Qb8 31.Ra1 Rc7 32.Ra8 Qb7 33.cb7 Rc4 34.b8Q Bb8 35.Rb8 h5 36.Rb7 Kh6 37.Kg2 Kg5 38.Rb6 Rc5 39.h4 Kf5 40.Kh3 g5 41.hg5 fg5 42.Kg2 Kg4 43.Re6 Rc4 44.Re5 h4 45.gh4 Kh4 46.Re8 Rb4 47.Rh8 Kg4 48.Re8 Kh4 49.Rd8 Kg4 50.Rd4 Rd4 51.ed4 Kf5 52.Kg3 Ke6 53.Kg4 Kd5 54.Kg5 Kd4 55.Kf4 Kd3 56.Kg3 Ke2 57.Kg2 Kd3 58.Kf1 Kd2 59.Kg1 Ke2 60.Kg2 Kd3 61.Kf1 Kd2 ½–½. olawoj – piard56, internet, 2013.

5.b5 Nd7

6.d4 a6 7.ba6 ba6 8.Nc3 ed4 9.ed4 =+.

6.d4 ed4 7.Nf3 Ngf6 8.Bd4 h6 =.

6.Nf3 b6 7.Be2 Bb7 (7...a6 8.0–0+=) 8.0–0 Ngf6 (8...Qf6 9.d4+=) 9.d4 Ne4 (9...ed4 10.ed4 0–0 11.Re1+=) 10.d5 (10.Nc3 Nc3 11.Bc3 a6+/–) 10...0–0+= 11.Qc2 Ng5 12.Nbd2 (12.Ng5 Qg5 13.f4 ef4 14.ef4 Qh4+=) 12...f5 13.Ng5 ½–½. Fischer,G – Fischer,M, Dortmund–ch, 1994.

6.Nf3 Ne7 7.d4 =.

6.Nf3 Ngf6 7.d4 ed4 (7...0–0 8.Be2=) 8.Bd4 0–0 9.Be2 Nc5 10.Nbd2 (10.0–0 Be6=) 10...Nfe4 (10...Re8 11.0–0=) 11.Bg7 Kg7 12.Ne4 Ne4 13.0–0 Nc5 (13...Qf6 14.Qd5 Nc3 15.Qd2=) 14.Nd4 (14.a4 Qf6+=) 14...Qf6= 15.Bf3 (15.a4 Re8=) 15...Rb8 (15...Be6 16.Bd5=) 16.a4 (16.Nb3 Na4+=) ½–½. Schwichtenberg,Juergen – Minor,Samuel, Karl Mala mem op, 2003.

5.b5 Ne7

6.a4 0–0 7.Be2 (7.Nf3 c5 8.d3 a6 9.Nc3=) 7...Nd7 (7...Nf5 8.e4 Nd4 9.Nf3+=) 8.d4 ed4 9.Bd4 Nf5 10.Bg7 Kg7 11.Nf3 b6 (11...Re8 12.Nc3+=) 12.Nd4 Ne5 13.Nc3 Qg5 14.Nf5 Bf5 15.0–0 Bh3 16.Bf3 Nf3 17.Qf3 Be6 18.Rac1 f5 19.Qc6 Qd8 20.Rfd1 Rf7 21.Ne2 Rb8 22.Nd4 Bd7 23.Qd5 Qc8 24.h4 Qb7 25.Ne6 (25.Qb7 Rb7 26.g3 Kf6+=) 25...Be6= 26.Qe6 Qa8 ½–½. Linke,Patrick – Mueller,C, corr DDR, 1981.

6.a4 0–0 7.Ne2 Nd7 8.Ng3 b6 9.Bd3 a5 10.Be4 Rb8 11.0–0 Nc5 12.d4 Ne4 13.Ne4 ed4 14.ed4 Bf5 15.Nbd2 Bh6 16.Ng3 Bd7 17.Nf3 Nf5 18.Ne4 Bg7 19.Qc2 Nh4 20.Rae1 Nf3 21.gf3 Qh4 22.Kh1 Qf4 23.Qd3 Rbe8 24.Bc1 Qf5 25.d5 Qh5 26.Ng3 Qh4 0–1. jura1946 – edilso, internet, 2013.

6.a4 0–0 7.Nf3 c5 8.d3 a6 9.Nc3 =.

6.Be2 0–0 7.Nc3 Be6 8.Nf3 h6 9.0–0 Kh7 (9...a6 10.d4=) 10.d3 (10.d4 ed4 11.ed4 d5+=) 10...Nd7 (10...a6 11.d4=) 11.Qc2 f5 12.a4 (12.d4 a6=) 12...Qe8 (12...c6 13.d4=) 13.Rfe1 (13.d4 c6+=) 13...g5 (13...Qf7 14.a5=) 14.h3 (14.a5 g4 15.Nd2 Qg6+=) 14...Qg6 (14...g4 15.hg4 fg4 16.Nd2=) 15.Nh2 (15.Nd2 a6=) 15...Rae8 (15...g4 16.hg4 fg4 17.e4+=) 16.d4 (16.a5 g4=) 16...e4 (16...ed4 17.ed4 Bd4 18.Rad1–/+) 17.f3 (17.a5 c6+=) 17...ef3= 18.Bf3 (18.Nf3 g4 19.hg4 fg4 20.Qg6 Ng6=) 18...Bc4 (better is 18...c6=) 19.Ne2 (19.Bb7 Rb8 20.Bf3 Rbc8=) 19...Bd5 (19...d5 20.Nf1–/+) 20.Nc3?? (better is 20.Qc7 Qe6 21.Nc3=) 20...Bf3–+ 21.Nf3 f4 (21...g4!? 22.hg4 fg4 23.Qg6 Kg6 24.Nh2–+) 22.Qg6 (22.e4 c5 23.bc6 bc6+=) 22...Ng6–/+ 23.ef4 (23.e4!?–/+) 23...Nf4–+ 24.Rad1 (24.Re8 Re8 25.Rf1 Nd3–+) 24...Re1 (24...Re1 25.Ne1 c5 26.bc6 bc6–+) 0–1. GuestHYVZ – wolfenbratayak, freechess.org, 2016.

6.Nf3 0–0 7.Be2 e4 8.Nd4 Nf5 9.Qc2 (9.d3 Qg5 10.de4 Nd4 11.ed4 Qg2=) 9...Nd4 10.Bd4 Bd4 11.ed4 f5 (11...Re8 12.0–0=) 12.0–0 Qf6 13.Nc3 (13.Qc3 c5 14.dc5 dc5 15.Qf6 Rf6=) 13...Qd4+= 14.Nd5 (14.d3 ed3 15.Bd3 Be6+=) 14...Qg7 (14...Rf7 15.Rfe1–/+) 15.Qc3 (15.d3!?+=) 15...Qc3–/+ 16.Nc3 c6 (16...a6 17.Nd5 c6 18.Nc7 ab5 19.Na8 bc4 20.Bc4 d5 21.Be2+–) 17.Rad1 (17.f3 Re8+=) 17...Be6 18.d3 d5 (18...ed3 19.Bd3 Re8 20.Rfe1+=) 19.de4 (19.bc6 A) 19...Nc6? 20.cd5 (20.Nd5?! Nd4 21.Rd2 Bd5 22.cd5 Ne2 23.Re2 ed3=) 20...Bd5 21.Nd5+–; B) 19...bc6 20.de4 de4+=) 19...de4 20.Rd6 Kf7 21.Rfd1 Ke7 22.a4 Nd7 (better is 22...cb5!? 23.ab5 Rc8–/+) 23.bc6+= bc6 Black fights for the Initiative 24.Rc6 Rfc8 25.Rdd6 (25.Nd5 Kf7 26.Nc7 Rab8=) 25...Rc6= 26.Rc6 Rb8 27.Nb5 Rb6 (27...Rb7 28.a5 Ne5 29.Rc5 Nc4 30.a6+=) 28.Rb6 (better is 28.Rc7!? a6 29.c5=) 28...ab6–/+ 29.Nd4 Ne5 30.f4 (30.Ne6 Ke6 31.Kf1 h6+=) 30...ef3 31.gf3 (31.Nf3 Nc4 32.Ng5 Nd6–/+) 31...Bc4 32.Bd1 (32.Kf2 f4–/+) 32...Kd6 33.Kf2 Nd3 34.Ke3 Nb2 35.Bc2 Kc5 36.f4 Kb4 37.Nc6? (better is 37.h3–+) 37...Kc3 38.Nd4 (38.Bb1 Nd1 39.Kf3 Kb2 40.Bf5 gf5–+) 38...Bf7 39.Bf5 Nc4 40.Ke4 Nd6 41.Ke5 Nf5 42.Nc6 (42.Nf5 gf5 43.Kf5–+) 42...Be8 (42...Be8 43.Kd5 Ne3 44.Kd6 Nc4 45.Kc7 Bc6 46.Kc6 Kb4–+) 0–1. Saarenpaa,Toivo – Lardot,Derik, Lahti We LahS op, 2002.

6.Nf3 Nd7 7.Be2 a6 8.a4 ab5 9.ab5 Ra1 10.Ba1 0–0 11.0–0 b6 12.d4 e4 13.Nfd2 d5 14.cd5 Nd5 15.Nc3 Nc3 16.Bc3 c5 17.Ne4 cd4 18.Bd4 Qe7 19.Bf3 Rd8 20.Bg7 Nc5 21.Qa1 Ne4 22.Be4 Qe4 23.Bh8 f6 24.Qf6 Rd7 25.Rc1 Qb7 26.Qe5 Re7 27.Qd4 Bd7 28.Bf6 Re4 29.Qd6 Bb5 30.Rc7 Qa8 31.Rg7 Kh8 32.Ra7 Kg8 33.Ra8 Kf7 1–0. olawoj – piard56, internet, 2014.

6.Nf3 Bf5 7.d4 a6 8.Be2 ab5 9.cb5 =.

6.Nf3 Bf5 7.Be2 =.

6.Nf3 Bg4 7.Be2 c6 8.a4 c5 9.h3 Be6 10.Qc1 0–0 11.d3 a6 12.0–0 ab5 13.ab5 Ra1 14.Ba1 Qa5 15.Bc3 Qc7 16.Qb2 b6 17.Nbd2 Nd7 18.Ne4 Ra8 19.Ra1 Ra1 20.Qa1 h6 21.Qa8 Kh7 22.Nh2 d5 23.Nd2 d4 24.Bb2 Nf5 25.e4 Nd6 26.Ndf3 f5 27.ef5 Bf5 28.Nh4 Be6 29.Bc1 Nf5 30.Nf5 Bf5 31.g4 Be6 32.Qe8 Qd6 33.Nf3 Nf6 34.Qa8 Bf7 35.g5 hg5 36.Ng5 1–0. mete61 – klevi92, internet, 2013.

5.b5 Nf6

6.a4 0–0 7.Nf3 e4 8.Nd4 c5 9.Nb3 Nbd7 10.Be2 d5 11.0–0 (11.cd5 Nd5 12.Bg7 Kg7=) 11...dc4+= 12.Bc4 Qc7 13.Ra2 Ne5 14.Be5 Qe5 15.h3 Qg5 16.f4 ef3 17.Qf3 Bf5 18.Nc3 (18.Qb7?? Be4 19.Qe4 Ne4–+) 18...b6 19.a5 Rae8 20.Qf4 Qf4 21.Rf4 Nd7 22.ab6 Nb6 23.Na4 (better is 23.Ra7!? Bc3 24.dc3 Nc4 25.Rc4=) 23...Nc4–/+ 24.Rc4 Be6 25.Rac2 Rb8 26.Nbc5 Bc4 27.Rc4 Rb5 28.Ne4 (28.d4 f5–+) 28...Rd8 29.d4 Rb1 30.Kf2 Rdb8 (30...f5 31.Nd2 Rb5 32.Kf3–+) 31.Rc7 R1b7 32.Rc6 Re7 33.Nec3 Rbe8 34.Nd5 Rd7 35.Nac3 h5 36.Ra6 Re6 37.Ra5 f5 38.Nf4 Rc6 39.Ncd5 h4 40.Nb4 Rb6 41.Nbd5 Rbd6 42.Nb4 Rb7 43.Nbd3 Kf7 44.Nc5 Re7 45.Ncd3 Bf6 46.Kf3 a6 47.Nb4 Ra7 48.Nfd3 Bd8 49.Ra4 a5 50.Nc6 Ra6 (50...Rc6 51.Ne5 Ke8 52.Nc6+/–) 51.Nce5 Kg7 52.Nc5 Ra7 53.Nc4 Rf6 54.Ne5 (54.d5 Bc7–/+) 54...Re7 (54...Bb6 55.Nb3–+) 55.Nb3 Rb6 56.Na5 Re5 57.de5 Ra6 58.Rd4 (58.Nb7!? Ra4 59.Nd8–+) 58...Ba5 (58...Ra5?! 59.Rd8 g5 60.Rd7 Kg6 61.Re7=) 59.Rh4 Bc7 60.Rc4 Be5 61.g4 fg4 62.Rg4 Bf6 63.Rc4 Ra5 64.h4 Rh5 65.Kg3 Kf7 66.Ra4 Be5 67.Kg4 Bf6 68.Kg3 Ke6 0–1. Timmermans,Mark (2175) – Georgiev,Vladimir (2570), Spijkenisse NED, 2011.

6.d4 ed4 7.Bd4 a6 8.Nf3 Be6 9.Nc3 =.

6.Nf3 0–0 7.Nc3 Bg4 8.Be2 a6 9.a4 Bf3 10.Bf3 ab5 11.ab5 Ra1 12.Qa1 b6 13.0–0 Nbd7 14.d4 ed4 15.ed4 Re8 16.h3 Nf8 17.Nd5 Nd5 18.Bd5 Qg5 19.Re1 Re1 20.Qe1 Qf4 21.Qe7 Bd4 22.Bd4 Qd4 23.Qf7 Kh8 24.Qg8 1–0. olawoj – gala10, internet, 2014.

5.Qc2 Ne7

6.Be2 0–0 7.Nf3 Nbc6 (7...Bf5 8.e4 Bg4 9.h3=) 8.b5+= Nb8 9.d3 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 c6 13.Nc3 d5 14.0–0 d4 15.ed4 ed4 16.Ne4 f5 17.Nc5 b6 18.Nb3 Can d4 get defended? 18...c5 19.Re1 Nd7 20.Bf1 Bb7 21.Qe2 Rf7?? (21...Nc8 22.Bb2=) 22.Nbd2?? (22.Ng5 Be5 23.Nf7 Kf7+–) 22...Nf8?? (better is 22...Nc8=) 23.Ng5+– Rf6? (better is 23...Qd6+–) 24.Ndf3 (better is 24.Qe7 Qe7 25.Re7+–) 24...Bf3 (24...Nc8 25.Qd1=) 25.Qf3+= h6 26.Qb7 hg5 (26...Nc8!? 27.Nh3 Rf7=) 27.Re7+/– (27.Qe7?! Qe7 28.Re7 Rf7=) 27...Ne6 28.g3 Bf8 29.Rd7 Qe8 30.Bg2 Nf4? (better is 30...Ng7 31.Kf1 Kh8+–) 31.gf4+– Qe1 32.Bf1 Qa1 (32...gf4 33.Qd5 Qe6+–) 33.Qd5 Kh8 (33...Re6 34.Qe6 Kh8 35.Qf6 Kg8 36.Qg6 Kh8 37.Qh7) 34.Qe5 1–0. GuestYDBL – Xekmat, freechess.org, 2017.

6.Ne2 0–0 7.Ng3 (7.d4 a5 8.b5 Nd7 9.Nd2 Re8 10.Rd1 a4 11.Ne4 h6 12.de5 Ne5 13.f4=) 7...c5 (7...a5 8.b5 f5 9.f4 a4 10.Be2 a3 11.Bc3 h5 12.Qb3 Nd7 13.Na3=) 8.b5 (8.bc5 dc5 9.Be2 Nf5 10.Ne4 Na6 11.Qb3 Nh4 12.0–0 f5 13.Ng3+=) 8...Nd7 (8...a6 9.Be2 ab5 10.cb5 f5 11.Qc4 Rf7 12.0–0 b6 13.Qb3+=) 9.Nc3 (9.Be2 a6 10.ba6 Ra6 11.0–0 Nb6 12.Nc3 f5 13.f4=) 9...Nf6 (9...Nb6 10.Be2 Be6 11.d3 d5 12.cd5 Ned5 13.Nd5=) 10.Be2 d5 (10...a6 11.0–0 ab5 12.Nb5 Nc6 13.e4=) 11.h4 (11.Na4 Nd7 12.cd5 Nd5 13.Nc5+=) 11...d4 (11...Nf5 12.cd5 Ng3 13.fg3+=) 12.Nce4 Ne4 (12...Nf5 13.h5=) 13.Ne4 Bf5 14.Bd3 Be4 15.Be4 f5 16.Bb7 Rb8 17.Ba6 d3 18.Qc3 e4 19.Qg7 1–0. Mroz,Antoni – Sienkiewicz,Wojciech, corr Poland, 1986.

6.Nf3 0–0 7.d4 f6 8.a4 a5 9.b5 Bf5 10.e4 Be6 11.Nbd2 Nd7 12.d5 Bf7 13.Bd3 c5 14.bc6 bc6 15.Ba3 c5 16.Rb1 Rb8 17.Rb5 Rb5 18.ab5 Qc7 19.0–0 Ra8 20.h3 Kh8 21.Nh2 h6 22.f4 ef4 23.Rf4 Ne5 24.Ndf3 Nd3 25.Qd3 g5 26.Rg4 Ng6 27.h4 Ne5 28.Ne5 fe5 29.hg5 Bh5 30.Rg3 Rf8 31.Bc1 Qf7 32.Nf3 hg5 33.Bg5 Kh7 34.Bd2 Kg8 35.Ba5 Ra8 36.Bd2 Ra1 37.Kh2 Bf3 38.Qf3 Qe7 39.Bh6 Qh4 40.Rh3 Qe1 41.Bg7 Qh1 42.Kg3 Kg7 43.Rh1 Rh1 44.Qg4 Kh6 45.Qh4 Rh4 46.Kh4 Kg6 47.g4 Kf7 48.Kh5 Kg7 49.g5 Kf7 50.g6 Kg7 51.Kg5 Kg8 52.Kf6 Kf8 53.b6 Ke8 54.b7 Kd7 55.b8N Kc7 56.Na6 Kb6 57.Nc5 Kc5 58.g7 Kc4 59.g8Q Kd4 60.Kf5 Kc5 61.Qc8 Kd4 62.Qc6 Ke3 1–0. orangutandu – okulew, internet, 2013.

6.Nf3 0–0 7.Be2 Bf5 8.e4 Bg4 9.0–0 a5 10.b5 f5 11.d4 fe4 12.Qe4 Rf4 13.Qe3 =.

6.Nf3 a5 7.b5 Bf5 8.e4 Bg4 9.Be2 0–0 10.Nc3 Nd7 11.h3 Be6 12.0–0 f5 13.Ng5 =.

6.Nf3 Na6 7.Bc3 (7.a3 c5 8.b5 Nc7 9.Be2 a6 10.ba6 ba6 11.0–0 Rb8 12.Nc3 0–0 13.d3=) 7...0–0 8.Be2 Nb4 9.Bb4 e4 10.Bc3 ef3 11.Bf3 Bf5 12.d3 Rb8 13.0–0 +=.

5.Nc3 Be6

6.Qb3 c6 7.Nf3 d5 8.cd5+= cd5 9.Na4 Ne7 10.Nc5 Bg4? 11.Ne5+– b6?? 12.Ng4 Bb2 13.Qb2 Rg8 14.Nf6 Kf8 15.Nh7 Ke8 16.Nf6 Kf8 17.Bb5 Nec6 18.Nh7 Ke7 19.Qf6 Ke8 20.Bc6 Nc6 21.Qc6 (21.Qc6 Ke7 22.Qf6 Ke8 23.Qe5 Qe7 24.Nf6 Kf8 25.Ncd7 Kg7 26.Qe7+–) 1–0. gtate (1965) – jwooding (1855), net–chess.com, 2006.

6.Nf3 a5 A) 7.Qa4 A1) 7...Qd7 8.b5 (8.Qd7 Nd7 9.ba5 Ngf6 10.Nb5 Kd8 11.Ng5; 8.Qb5 Nc6 9.a3 Ra7 10.Be2 Nge7 11.0–0) 8...Bg4 9.Be2 e4 10.Ng1 Be2 11.Nge2; A2) 7...Nd7 8.ba5 (8.Be2 Ngf6 9.0–0 0–0 10.ba5 Re8 11.Qb4) 8...Ngf6 9.Ng5 0–0 10.Qb4 c5 11.Qb3; B) 7.ba5 Nc6 8.Rb1 (8.d3 Na5 9.Be2 e4 10.Nd2 ed3 11.Bd3) 8...Na5 9.d3 Ne7 10.Be2 0–0 11.0–0; C) 7.b5 C1) 7...Nh6 8.Be2 (8.d3 Nd7 9.Be2 0–0 10.0–0 Ng4 11.d4) 8...0–0 9.d4 Nd7 10.0–0 Nb6 11.d5; C2) 7...Nf6 8.Be2 (8.d4 ed4 9.Nd4 Nbd7 10.Be2 0–0 11.0–0) 8...0–0 9.0–0 h6 10.d4 Nbd7 11.d5; D) 7.a3= ab4 (7...Nf6 8.d4 ed4 9.Nd4 0–0 10.Qf3 ab4 11.ab4; 7...Ne7 8.d4 0–0 9.de5 de5 10.e4 Nec6 11.Nd5) 8.ab4 Ra1 9.Qa1 Nf6 10.Be2 Na6 11.d4.

6.Nf3 Ne7 7.Ng5 (7.Be2 0–0= (7...a5 8.b5 Nd7 9.Ng5 Nf5 10.Ne6 fe6 11.0–0) 8.0–0 Nd7 9.d4 ed4 10.Nd4 Nb6 11.Qb3; 7.d4 a5 (7...ed4 8.Nd4 a5 9.b5 Nd7 10.Be2 0–0 11.0–0) 8.b5 0–0 9.de5 de5 10.e4 Bd7 11.Be2) 7...Bd7 (7...Bc8 8.Nf3= (8.a3 0–0 9.Qf3 a5 10.b5 f6 11.Nh3; 8.Qb3 Nd7 9.c5 0–0 10.cd6 cd6 11.Bb5) 8...0–0 9.a3 a5 10.b5 Re8 11.Bd3) 8.Be2 (8.b5 f5= (8...0–0 9.Qf3 Bc8 10.Be2 h6 11.Nh3) 9.d4 a6 10.Be2 ab5 11.cb5) 8...h6 (8...Nec6 9.Nd5= Nb4 10.Nf7 Kf7 11.Nb4; 8...0–0 9.Qb3 Nc8 10.Nf3 a5 11.b5) 9.Nf3 0–0 (9...e4 10.Nd4= c5 11.Nc2) 10.0–0 (10.d3 c5 11.bc5) 10...c5 (10...e4 11.Ne1) 11.b5 (11.Qb3 Nbc6 12.b5 Na5=) 11...Be6 (11...a6 12.d4 ed4 13.ed4 ab5 14.Nb5 Bb5 15.cb5=) 12.d4+= f5 13.dc5 dc5 14.e4 f4 (14...a6 15.Qc2+=) 15.Nd5 (15.Qc2 Nd7+/–) 15...Nd7 16.a4 g5 17.Nd2 Ng6 (17...Bf7 18.a5+/–) 18.Ra3 (18.a5 Nf6+/–) 18...Kh7 (18...a6 19.Bg4 Bg4 20.Qg4+/–) 19.a5 a6 (19...Nf6 20.a6 b6 21.Rd3+/–) 20.b6+– Nb8?? (better is 20...Rc8+–) 21.Nc7 Qf6 (21...Bc4 22.Bc4 Nc6 23.Na8 Qa8 24.Qh5+–) 22.Na8 1–0. Morozevich,A – Ivel, ICC, 2000.

6.Nf3 Nf6 7.d4 Nbd7 (7...ed4 8.Nd4 a5 9.b5 Nbd7 10.Be2 0–0 11.0–0) 8.d5 (8.Be2 a5 9.a3 ed4 10.Nd4 0–0 11.0–0) 8...Bf5 9.Bd3 Bd3 10.Qd3 Nh5 11.0–0.

5.Nc3 Ne7

6.a3 A) 6...a5 7.b5 (7.Nf3 0–0 8.b5 Nd7 9.Be2 Nb6 10.0–0 a4=) 7...0–0 8.Nf3 f5 9.d4 ed4 10.ed4 Re8+=; B) 6...0–0 7.Nf3 f5 8.d4 e4 9.Nd2 c5 10.Nb3 cd4=.

6.a4 c6 7.Nf3 a6 8.b5 h6 9.Be2 0–0 10.0–0 Be6 11.d4 Nd7 12.de5 Ne5 13.Ne5 Be5 14.Qc2 Qc7 15.Ne4 Bb2 16.Qb2 f5 17.Ng3 d5 18.cd5 Bd5 19.Rac1 Qd7 20.b6 Kh7 21.Rfd1 a5 22.e4 fe4 23.Ne4 Qf5 24.f3 Be4 25.fe4 Qe4 26.Bf3 Qe3 27.Kh1 Nd5 28.Re1 Qg5 29.Bd5 Qd5 30.Re7 Rf7 31.Rc7 Rc7 32.bc7 Rc8 33.Qb7 Qd7 34.Qc6 Qc6 35.Rc6 Kg7 36.g3 Kf7 37.Kg2 h5 38.Kf3 g5 0–1. czemar – nemovas, internet, 2014.

6.Be2 0–0 7.Nf3 (7.a3 a5+=) 7...f5 (7...e4 8.Nd4 c5 9.bc5 dc5 10.Nb3=) 8.d4= Nd7 (8...e4 9.Nd2=) 9.Qb3 (9.0–0 a5 10.b5 h6+=) 9...Kh8 (9...c5 10.bc5 dc5 11.de5 Ne5 12.0–0+=) 10.0–0+= e4 11.Nd2 c6 12.b5 (12.Rfd1 Nf6+=) 12...c5 13.dc5 (13.Na4 cd4 14.Bd4 Bd4 15.ed4 Nf6+=) 13...Nc5= 14.Qc2 Be6 15.Rfd1 (15.Na4 Na4 16.Bg7 Kg7 17.Qa4 a6=) 15...Qe8 (15...Rc8 16.Na4=) 16.Nb3+= Qf7 (16...Rd8 17.Nc5 dc5 18.Rd8 Qd8 19.Rd1+=) 17.Nc5 (17.Rd6!? Rac8 18.Nd1+/–) 17...dc5+= 18.Na4 b6 19.Rd6 Rae8 (19...Rad8 20.Bg7 Kg7 21.Rad1 Rd6 22.Rd6+=) 20.Bg7 Kg7 21.g3 (21.Rad1 f4 22.ef4 Nf5=) 21...g5 Black prepares the advance f4 (21...Nc8 22.Rd2=) 22.Qc3 (22.Rad1 Nc8 23.R6d2 g4+=) 22...Kg8= 23.Nb2 (23.Rad1 f4 24.gf4 gf4=) 23...f4 24.ef4 (24.Bh5 Qh5 25.Re6 Qh3 26.Re7 Re7–+) 24...gf4 25.Kh1 fg3 26.Rg1 (26.Qg3 Ng6 27.Rf1 Kh8+=) 26...Ng6 (better is 26...Qf2 27.Rg2 Qf7 28.Qg3 Ng6–/+) 27.Bf1?? (better is 27.fg3 e3 28.Bf1–/+) 27...Qe7 (27...gf2 28.Rg2 Qf4 29.Rc6–+) 28.Rc6? (28.Qg3 Rf3 29.Qe5 Rf2 30.Bh3–+) 28...Qh4 (better is 28...Rf2 29.Qg3 Rb2–+) 29.Rg3 (29.fg3 Qf6 30.Qf6 Rf6 31.Bh3–/+) 29...Rf5?? (better is 29...Rf2 30.Bg2 Qf4–+) 30.Bh3= Rh5?? (better is 30...Rf6=) 31.Re6+– (31.Be6?! Re6 32.Rc8 Kf7=) 31...Re6 32.Be6 Kf8 The mate threat is Qxh2 33.h3 (33.Rg2 Qf4+–) 33...Ne5 (33...Qf4 34.Bd5+–) 34.Qd2 (34.Qa3 Ng6 35.Qa7 Qf6 36.Qa8 Kg7 37.Qb7 Kh6+–) 34...Ke7 35.Bc8 (35.Bc8 Qf6 36.Rg8 Qf3 37.Kg1+–) 1–0. Melich,Jindrich (2170) – Niederwieser,Peter, Ceske Budejovice op, 1996.

6.Nf3 Na6 7.a3 =.

6.Nf3 Nbc6 7.b5 Nb4 8.a3 +/–.

6.g3 Nd7 (6...Be6 7.Bg2 (7.Nf3 0–0 8.d4 a5 9.b5 ed4 10.Nd4 Nd7=) 7...c6 8.d3 a5 9.b5 d5 10.cd5 Nd5=; 6...0–0 7.d3 (7.Bg2 c6 8.d3 Na6 9.b5 Nc5 10.Nge2 Bf5+=) 7...d5 8.Bg2 Be6 9.Qb3 c6 10.Nf3 Nf5+=) 7.Bg2 (7.Nge2 Nc6 8.b5 Na5 9.d3 e4 10.Nf4 ed3=) 7...c6 (7...0–0 8.Nge2 a5 9.ba5 Ra5 10.0–0 Re8=) 8.a4 (8.Nge2 h5 9.0–0 h4 10.b5 a6=) 8...f5 9.Nge2 (9.d3 0–0 (9...a5 10.b5 0–0=) 10.Nge2 a5=) 9...Nf6 (9...e4!?–/+ 10.Ne4 Bb2+=) 10.d4= Be6 (10...e4=) 11.Qb3 Qc7 12.0–0 0–0 13.Rfd1 Rad8 14.a5 Bf7 15.Rac1 g5 16.d5 Qb8 17.Rd2 Rd7 18.Qa4 Rc8 19.f4 gf4 20.ef4 b5 21.cb5 (21.ab6!? Qb6 22.Kh1=) 21...cd5+= 22.Qa1 (better is 22.Na2!?+=) 22...d4–/+ 23.Nd1 (23.Na4 Qb5 24.Rc8 Nc8–+) 23...Rc1–+ 24.Qc1 Rc7 25.Rc2 d3 26.Rc7 de2 27.Re7?? (27.Ne3 e1R! 28.Qe1 Qc7 29.fe5 de5 30.Qf2–+) 27...e1Q 28.Bf1 Qb5 (28...Qb5 29.Ne3 Qc1 30.Bc1 Qb4 31.fe5 de5 32.Nf5 Nd5 33.Rf7 Kf7–+) 0–1. Chirpii,Alexandru (1965) – Putiatin,Sergei (2085), Kishinev MDA Open Binefacere, 2007.

6.Nf3 0–0

7.a3 e4 8.Nd4 c5 9.Nc2 cb4 10.Nb4 a5=.

7.Rb1 Bf5 8.e4 Be6 9.Be2 Nbc6 10.a3 f5=.

7.d4 Nbc6 8.de5 de5 9.Ne4 =.

7.d4 ed4 8.Nd4 c5 (8...Nbc6 9.a3=) 9.bc5 (9.Nc2 cb4 10.Nb4 Nbc6=) 9...dc5 10.Nf3 (10.Nb3 Nd7=) 10...Qa5 11.Qb3 Nbc6 (11...Rd8 12.Rd1+=) 12.Be2 Be6 (12...Rd8 13.0–0+=) 13.0–0 a6 (13...Rfd8 14.Ne4=) 14.Ng5 (14.Ne4 b6=) 14...Bf5 (14...Rad8 15.Nce4 Qb4 16.Qb4 cb4 17.Bg7 Kg7 18.Ne6 fe6 19.Nc5+=) 15.Nd5+= Bb2 (15...Qd2 16.Bg7 Kg7 A) 17.Qb7?! Rfb8 (worse is 17...Qe2 18.Ne7 Ne7 19.Qe7+=) 18.Qc7 Ra7+=; B) 17.Qd1 Qd1 18.Rfd1= (worse is 18.Bd1 Bd3+=)) 16.Qb2 Nd5 17.cd5 The passed pawn on d5 will quickly become a dangerous weapon 17...Ne7 (17...Qb4 18.Qf6 Nb8 19.Rfd1+/–) 18.e4 (18.Qb7 Rfe8+–) 18...Bc8+/– 19.Rfc1 (19.Qf6 Qd8+/–) 19...f6 (19...f5 20.d6 b5 21.de7+–) 20.Nf3 (20.Bc4 b5 21.d6 bc4 22.de7 Re8 23.Qf6 Re7 24.Qe7 Ra7 25.Qa7 Bd7 26.Qd7 Qc7 27.Qc7 h5 28.Qf7 Kh8 29.Qf8) 20...Rb8 (20...f5 21.d6 Rf7 22.de7 Re7 23.Qf6+–) 21.d6 Nc6 22.Bc4 (22.Qb3 Kg7+/–) 22...Kg7 23.e5 Qd8 (23...fe5 24.Ne5 Nd4 25.Nc6 bc6 26.Qb8+–) 24.Bd5 (24.Re1 b5 25.Bd5 Ne5 26.Ne5 fe5 27.Re5 Rf4+/–) 24...Ne5 25.Ne5 fe5 (25...Qd6 26.Ng6 hg6 27.Rd1=) 26.Rc5 (better is 26.Qe5!? Qf6 27.Qe7 Qe7 28.de7+=) 26...Qd6= 27.Rac1 Bd7 (27...b5 28.Be4=) 28.Bb3 The isolani on e5 becomes a target (28.Bb7 Rf5+=) 28...Rbc8 (28...Qd4 29.Qe2 Rbc8 30.Rc7+=) 29.Rd5 Rc1 30.Qc1 Qc6 (30...Qe7 31.Qc7 Rf7 32.Re5+=) 31.Qd2 (31.Qe3 Rf5=) 31...Bf5 (31...Rd8 32.Qe3=) 32.Re5+= Qf6 33.Qe3 g5 (33...b6 34.Bd5=) 34.h3 (34.g4 Bd3+=) 34...b5 (34...b6 35.Re7 Kh8 36.Bd5+=) 35.g4 (35.Re7 Kh8+=) 35...Bg6 36.Rg5 The passed pawn on f2 will quickly become a dangerous weapon 36...Rd8 (36...Kh8 37.Qe5+=) 37.Re5 Rd3 38.Re7 Kf8 39.Re8 Be8 40.Qd3 Bc6 41.Qe3 (41.Bd5 Bd5 42.Qd5 h6+/–) 41...Qa1 (41...Bf3 42.Qc5 Ke8 43.Qc8 Ke7 44.Qc7 Ke8 45.Kh2+/–) 42.Kh2 Qh1 43.Kg3 Qg2 (43...Qe4 44.Qc5 Ke8 45.f4+/–) 44.Kh4 (44.Kf4 b4+/–) 44...a5 (44...Qe4 45.Qe4 Be4 46.f4+/–) 45.Qf4 (45.Qh6 Ke8 46.Qe6 Kd8 47.Qg8 Be8 48.Qg5 Kc7 49.Qe5 Kd8 50.Qd4 Ke7+–) 45...Ke8 (45...Ke7 46.Qe5 Kd7 47.Be6 Kd8 48.Qf6 Kc7 49.f4 Qf2 50.Kg5+–) 46.Qe5 (46.Qf7 Kd8+–) 46...Kd8 (46...Kd7 47.Qe6 Kc7 48.Qe7 Kb6 49.f4 (49.Qh7 Qf2 50.Kh5 a4+–) 49...Qf2 50.Kg5 h6 51.Kh6 Qf4 52.Kh5+–) 47.Qh8 Be8 48.Qd4 (48.Qf6 Kc7+–) 48...Kc7 49.Bd5 Qh2 (49...Qf1 50.Qe5 Kd8 51.Qd6 Bd7 52.f4+–) 50.Qc5 (better is 50.Qa7!? Kd8 51.Qa5 Ke7 52.Qa7 Bd7+–) 50...Kd8 51.Be4 (51.Qb6 Qc7 52.Qc7 Kc7+–) 51...h5 (51...Bg6 52.Qd5 Ke7 53.Qg5 Ke6 54.Bg6 Qf2 55.Kh5 hg6 56.Qg6 Ke7 57.Qg5 Kd6 58.Qd8 Kc5 59.Qe7 Kc6 60.Qe6 Kc7 61.g5+–) 52.Qd4 (52.Qg5 Kc7 53.Qe7 Bd7+–) 52...Ke7 53.Qa7 (53.Qe3 Qe5+–) 53...Kf8 (53...Ke6 54.Qb6 Ke7 55.Qe3+–) 54.Qc5 Kg7 55.Qg5 Kf8 Do you see the mate threat? 56.Qf6 Bf7 57.g5 (57.Bd5 Qc7 58.Bf7+–) 57...Kg8 58.Bh7!! Kh7 Theme: Deflection from f7 59.Qf7 Kh8 60.g6 1–0. Kleiser,Gregor (2095) – Stanivukovic,Drago (2190), Vienna op–C, 1996.

7.d4 ed4 8.Nd4 Nbc6 9.a3 =.

7.d4 ed4 8.Nd4 Nf5 9.Nd5 c6 10.Nf4? (10.Nc3 Nd4 11.ed4 Qb6+=) 10...Na6?? (10...c5 11.Bd3 cd4 12.Bf5 Bf5 13.Bd4 Bd4 14.Qd4–+) 11.a3? (11.b5 c5 12.ba6 cd4=) 11...Nc7?? (better is 11...c5 12.b5 Nb8–+) 12.Qd2 Nd4 13.Bd4 Ne6 14.Bg7 Ng7 15.Rd1 Ne6 16.Ne6 Be6 17.Qd6 Qh4 18.Qd4 Qe7 19.Bd3 Rfd8 20.Qe5 f6 (20...a5 21.c5+= (21.ba5? Qa3 22.Ke2 Rd3 23.Rd3 Bc4–+)) 21.Qf4 Kg7 22.0–0 Rd7 23.Be2 Rad8 24.Rd7 Qd7 25.c5 Qd2 26.Bg4 Bg4 27.Qg4 Rd7 28.a4 Qd5 29.b5 h5 30.Qb4 cb5 (30...Qd2!? 31.Qb3 Qd3 32.Qd3 Rd3+/–) 31.ab5+– Qd2 32.Qa4 Qd3 33.Rc1 White prepares the advance c6 33...Rc7 34.c6 bc6 35.bc6 a6 36.Qb4 Qb5 37.Qd6 (37.Qd6 Qb6 38.e4+–) 1–0. pierred – mzharzh, Yahoo, 2005.

7.d4 Nf5 8.de5 de5 9.Qd8 Rd8 10.Nd5 (better is 10.Rd1 Nd7 11.Nd5=) 10...Na6 (10...c6 11.Nc7 Ne3 12.fe3 Bg4 13.Na8 Nd7+–) 11.b5 (11.Be5 Be6 12.b5 Nc5 13.Nc7 Be5 14.Ne5 Rac8 15.Ne6 fe6+–) 11...c6 (11...e4 12.Bg7 (worse is 12.ba6 Bb2 13.Rb1 ef3 14.Rb2 b6+=) 12...Kg7 13.ba6 ef3 14.Nc7+/–) 12.ba6+/– cd5 13.Be5 Be5 (13...dc4 14.Bg7 Ng7 15.Bc4 ba6 16.Ne5+/–) 14.Ne5 f6 15.Nf3 (15.ab7 Bb7 16.Rb1+/–) 15...d4 (15...b6!?+/–) 16.g4 (16.Rd1 b6+–) 16...Ne7 (16...Nh6 17.ed4 Ng4 18.h3 Re8 19.Be2+–) 17.Nd4 b6 18.Be2 (18.Bg2 Rb8+–) 18...Ba6+/– 19.0–0 (19.Bf3 Rac8 20.g5 fg5+=) 19...Rac8 20.Rac1 Nc6 21.Nc6 (21.Rfd1 Ne5+/–) 21...Rc6+= 22.Rc2 Rcd6 (22...Rc5 23.Kg2+=) 23.Rfc1 Rd2 (23...h6 24.Bf3+=) 24.Kf1 (24.Bf3 Kg7+=) 24...Kf8 (24...Bb7 25.Ke1 R2d7 26.c5 bc5 27.Bb5+/–) 25.Ke1+/– Rc2 26.Rc2 Ke7 27.Rc3 (27.c5 Be2 28.Ke2 bc5 29.Rc5 Kd6+/–) 27...Bb7 28.Ra3 (28.c5 Bd5+/–) 28...Ra8 (28...a6 29.Rd3+=) 29.Rd3 g5 30.Kd2 (30.Rd4 Rd8+/–) 30...Bc6 (30...Be4 31.Rd4 Rd8 32.Bd3+/–) 31.Kc3 Ke6 32.f4 (32.Rd4 Rc8+/–) 32...h6 (32...Re8 33.f5 Ke5 34.a3+=) 33.Rd1 Ke7 34.Rg1 (34.a3 Re8+/–) 34...Rd8 35.Rg3 Be4 (better is 35...Kd6+/–) 36.h4 (36.Rh3!?+/–) 36...gh4+= 37.Rh3 Kf7 (37...f5 38.Rh4 fg4 39.Bg4+/–) 38.Rh4+/– Kg6 39.Rh5 (39.f5 Kg7+/–) 39...Rd7 (39...f5 40.gf5 Bf5 41.a3+/–) 40.c5 Rd5 (40...bc5 41.Rc5 f5 42.gf5 Bf5 43.Re5+/–) 41.cb6 (41.c6!? Rh5 42.gh5 Kf5+–) 41...ab6 42.Rd5 Bd5 43.Bd3 Kg7 44.a3 (44.a4 Kf7+–) 44...Kf8 (44...Be6 45.f5 Bd7 46.Be4+–) 45.Kd4+– Bc6 (45...Bf3 46.Bf5+–) 46.e4 (46.Be4 Bb5+–) 46...Ke7 47.e5 Ke6 (47...Bf3 48.Bf5+–) 48.Bc4 (48.f5 Ke7 49.e6 Bf3+/–) 48...Ke7 49.ef6 Kf6 50.Bd5 Bd7 51.Bf3 Be6 52.Be2 (52.f5 Bb3+–) 52...Bb3 (52...b5 53.f5 (53.Bb5?! Bg4 54.a4 Bf3+–) 53...Bd7 54.Kc5+–) 53.Ke4 (53.Bc4 Bd1+=) 53...Be6 54.Kf3 (54.f5 Bb3+–) 54...Bd5 55.Kg3 (55.Ke3 Kf7+–) 55...Be4 56.Bc4 Bc2 57.Kh4 Bg6 (57...Be4 58.Kh5 Bf3 59.f5+– (worse is 59.Kh6 Bg4 60.Bd3 Bf5+/–)) 58.Bd5 (58.f5 Be8+–) 58...Be8 (58...Bd3 59.Kh5 Be2 60.a4+– (60.Kh6?! Bg4 61.Be4 Bf5+/–)) 59.Be4 Bf7 60.Bc2 (60.a4 Ke7+–) 60...Be8 (60...Ke7 61.Bd3+–) 61.Bd3 Bf7 62.g5 (62.a4 Bd5+–) 62...hg5 63.fg5 The passed pawn on g5 will quickly become a dangerous weapon 63...Ke5 (63...Kg7 64.Be4+–) 64.g6 Bg8 (64...Bd5 65.g7 Kf6 66.Be4=) 65.Kg5 Kd4 66.Bb5 Ke5 (66...Kc5 67.a4+–) 67.Be8 (67.g7 Bd5+–) 67...Ke6 68.Kf4 (68.g7 Ke7 69.Bc6 Kf7+–) 68...Ke7 (68...Kf6 69.Ke4+–) 69.Bb5 Kf6 70.Bd3 Bb3 (70...Bd5 71.a4+–) 71.Ke3 Ba4 (better is 71...Bd5+–) 72.Kd4 (72.Be4 Be8+=) 72...Ke6? (better is 72...Be8!?+=) 73.Bc4 (better is 73.Be4+–) 73...Kf6+= 74.Bf7 Bc6 (74...Bc2!?+=) 75.Kc4+/– Kg7 76.Bd5 (better is 76.Kd3!?+/–) 76...Be8 (76...b5 77.Kd4 Bd5 78.Kd5 Kg6 79.Kc5+–) 77.Be4 Kf6 78.Kd5 Ke7? (better is 78...Kg7+=) 79.Ke5+– Ba4 80.Bd5 Bc2? (80...Kf8+–) 1–0. Melich,Jindrich (2190) – Dvorak,Vladimir, CZE–chT2b, 1995.

7.d4 Bg4 8.Be2 Bf3 9.Bf3 (worse is 9.gf3 ed4 10.ed4 Nbc6–/+) 9...c6 (9...ed4 10.ed4 Nbc6 11.b5 Nd4 12.Bb7=) 10.0–0 (10.de5 Be5 11.Qd2 Qb6+=) 10...ed4= 11.ed4 d5 (11...Qb6 12.Qb3=) 12.cd5+= cd5 13.b5 a6 14.a4 (14.Ba3 ab5 15.Be7 Qe7 16.Nd5 Qh4+=) 14...ab5+= 15.ab5 Ra1 16.Ba1 Nf5 (16...Qd6 17.Re1+=) 17.Bd5 (17.Nd5!? Qd7 18.Qd3+–) 17...Nd4 18.Bb7 Qb6 19.Be4 Rd8 (19...Nb5 20.Nd5 Qd6 21.Bg7 Kg7 22.Qa1 f6 23.Rb1+/–) 20.Qa4 Nd7 21.Qa6 Qa6 (21...Qb8!? 22.Qb7 Qf4+/–) 22.ba6+– Nc5 23.a7 Ne4 24.Ne4 Ra8 25.Rd1 (25.Rb1 Nc6 26.Bg7 Kg7+=) 25...Ra7= 26.Kf1 Rd7 (26...Ra4 27.Nc5 Rb4 28.Bc3=) 27.Nc5 (27.Ng5 Rd6=) 27...Rd5 28.Bd4 Rd4 (28...Bd4? 29.Nb3 Rh5 30.Nd4 Rh2 31.Kg1+–) 29.Rd4 Bd4 30.Nb3 Bc3 (30...Be5 31.h4=) 31.Ke2 f5 32.Nc5 Kf7 33.f3 (33.Kd3 Be5=) 33...Bh8 (33...Bd4 34.Nb3 Be5 35.h4+=) 34.Kd3 Ke7 35.Kc4 Kd6 36.Nd3 h5 37.h4 Bg7 (37...Be5!?=) 38.Nf4+/– Bf6 39.Ng6 Bh4?? (better is 39...Be5+/–) 40.Nh4+– 1–0. Fredek (2090) – Guest1362903, Freundschaftspartie, 5m + 0s, 2005.

7.Be2 Nbc6 8.a3 d5 9.cd5 Nd5 10.Rc1 Nc3 11.Bc3 (worse is 11.Rc3 e4 12.Nd4 Nd4 13.ed4 Bd4–/+; 11.dc3?! a6=) 11...e4 12.Ng1 Ne5 13.Be5 Be5 14.Qc2 f5 15.Bc4 Kh8 16.g3 Qe7 17.Ne2 Be6 18.h4 c6 19.Qb3 Bc4 20.Rc4 Rfd8 21.Rc5 Qd6 22.Qa2 Rd7 23.0–0 Rad8 (23...Qd2 24.Qd2 Rd2 25.Re5 Re2 26.Re7=) 24.Kg2 Bf6 (24...Qd2?! 25.Qd2 Rd2 26.Re5 Re2 27.g4+=) 25.Rc2 Qd5 26.Qd5 Rd5 (26...cd5?! 27.f3=) 27.Rd1 Rd3 28.Ra2 Kg7 29.Nf4 R3d6 30.Rc2 h6 31.a4 g5 32.hg5 hg5 33.Nh5 Kg6 34.g4 Be5 35.Rc5 Rd5 36.Rd5 Rd5 37.Ng3 Bg3 38.Kg3 Rd7 39.f4 Rf7 40.Rf1 b6 (40...fg4 41.Kg4 gf4 42.Rf4+= (worse is 42.ef4 Kf6+=)) 41.Rc1 (41.fg5 Kg5 42.Rf4 a5 43.ba5 ba5 44.gf5 Rf5 45.Re4 c5+/–) 41...Rc7 42.Rc4 Kf6 43.gf5 Kf5 44.fg5 Rg7 45.Rc6 Rg5 46.Kf2 Rg7 47.Rd6 Rh7 48.Ke2 Ke5 49.Rd4 Rh2 50.Kd1 Rh7 51.Kc2 Rc7 52.Kb3 Kf5 53.b5 Re7 54.Kb4 Kg4 55.a5 Kf3 56.ab6 ab6 57.Rd6 Ke2 58.Kc3 (58.Rb6?! Kd2 59.Rc6 Ke3=) 58...Rc7 59.Kd4 Re7 60.Rb6 Kd2 61.Rc6 1–0. combijack (1745) – kidney_bean (1760), gameknot.com, 2010.

7.Be2 e4 8.Nd4 c5 9.bc5 dc5 10.Nb3 b6=.

5.Nc3 Nf6

6.d3 0–0 7.Nge2 (7.Nf3 a5 8.b5 Nbd7+=) 7...Be6 (7...Bg4–/+) 8.e4 (8.g3 d5 9.Bg2 dc4 10.Bb7 Nbd7 11.dc4 Nb6–/+) 8...Nc6 (8...Nbd7 9.g3–/+) 9.b5 Ne7 10.f4 (10.g3!?–/+) 10...Ng4 11.Nd5 (11.Qd2 a6–+) 11...c6 12.Ne7 Qe7 13.h3? (13.Qd2 cb5 14.cb5 a6–+) 13...Ne3 14.Qc1 ef4 15.Bg7 Kg7 (15...Qh4 16.Kd2 Kg7 17.g3 Nf1 18.Qf1 fg3 19.bc6 bc6 20.Qf4 Qf4 21.Nf4–+) 16.Kd2 (16.Nf4 Qf6 17.Rb1 Qf4–+) 16...Qg5 17.h4 Qh6 18.Kc3 (18.Qb2 f6 19.Nd4 Bf7–+) 18...cb5 (18...Kg8 19.Rb1 d5 20.bc6 bc6 21.ed5 cd5 22.c5–+) 19.g3 fg3 20.Rg1 bc4 (20...Kg8 21.Nd4 Qf4 22.Nc2 Qf6 23.e5 Nd5 24.Kb2 Qh4 25.cd5 Bd5 26.Bg2 Bg2 27.Rg2 de5 28.Qe3–+) 21.d4 (21.Rg3 cd3 22.Qe3 de2 23.Qh6 Kh6 24.Be2 f5–+) 21...Nf1 (better is 21...g2 22.Rg2 Ng2 23.Qh6 Kh6 24.Bg2–+) 22.Qh6 Kh6 23.Raf1 g2! 24.Rf2 (24.Rg2 Bh3 Decoy) 24...f5 25.d5 (25.e5 f4! 26.Rf4 de5 27.de5 Bh3–+) 25...Bd7 26.Rfg2 (26.ef5 Bf5 27.Kd4 c3 28.Rfg2 c2–+) 26...fe4 27.Nd4 Rf6 28.Rb2 b6 29.Rh2 Re8 30.a4 (30.Kc4 e3–+) 30...Re5 31.Kc4 (31.Rg5 Ba4 32.Rh1 e3–+) 31...Ba4 (better is 31...e3 32.h5 g5 33.Rb1–+) 32.Kb4 (32.Ra2 Be8 33.Ra7–+) 32...Rd5 33.Kc4 (33.Ka4 Rd4 34.Kb5 e3–+) 33...Re5 0–1. Khmiadashvili,Tamar (2080) – Gevorgyan,David Sh (2345), 11th Nana Aleksandria Cup, 2016. (=1.c4 e5 2.Nc3 d6 3.e3 g6 4.b4 Bg7 5.Bb2 Nf6)

6.Be2 0–0 7.d3 (7.a3 e4 8.d3 ed3 9.Bd3 a5 10.Nf3 Bg4=; 7.Nf3 e4 8.Nd4 Na6 9.b5 Nc5 10.0–0 a6=) 7...c5 8.a3 Na6 9.b5 Nc7 10.Nf3 a6=.

6.Be2 a5 7.b5 Nbd7 8.Nf3 0–0 9.d4 ed4 10.ed4 d5=.

6.Be2 c5 7.Qa4 Bd7 8.b5 0–0 9.Bf3 Bc8 10.Nge2 Nbd7=.

6.Nf3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 d6 5.e3 e5 6.Nc3).

5.d3 Ne7

6.Nd2 a5 7.b5 Bf5 8.Ngf3 0–0 9.Be2 Nd7=.

6.Nd2 c6 7.Ne2 Be6 8.g3 Nd7 9.Bg2 f5 10.0–0 0–0 11.a4 Qc7 12.Qc2 a5 13.b5 cb5 14.ab5 Rac8 15.Ba3 b6 16.Rac1 g5 17.f4 gf4 18.gf4 Ng6 19.fe5 Nde5 (19...Nge5? 20.Nd4 Bf7 21.Nf5+–) 20.Nd4 Bd7 21.Bd5 Kh8 22.Ne6 Be6 23.Be6 Rce8 24.Bf5 Nh4 25.d4 (25.Be4!? Bh6 26.Rf8 Rf8 27.Nf1=) 25...Bh6+= 26.de5 Qg7 27.Kh1?? (better is 27.Bg6 Be3 28.Kh1 Ng6 29.Rce1 Rf1 30.Nf1–/+) 27...Qg2 0–1. Macedo,Alexandre Soares De (2030) – Azevedo,A A A (2090), IRT Verao, 2009.

6.d4 0–0 7.Nf3 ed4 8.Bd4 Bd4 9.Qd4 Bf5=.

6.Nf3 0–0 7.Be2 e4 8.Bg7 ef3 9.Bf8 fe2=.

6.g3 0–0 7.Bg2 a6 (7...c6 8.Qd2 a5 9.b5 d5=) 8.Ne2 Nbc6 (8...c5 9.bc5 dc5=) 9.Qd2 (9.a3 d5=) 9...Rb8 (9...d5 10.a3+=) 10.a4 Nf5 11.b5 Na7 12.Nbc3 Be6 13.0–0 a5 14.Rab1 b6 15.f4 ef4 16.Nf4 Bd7 17.Ncd5 Nc8 (17...Be5!?+/–) 18.g4 Nh4? (18...Bb2 19.Qb2 (worse is 19.Rb2 Nh6+/–; 19.gf5?! Be5+/–) 19...Ng7 20.Nf6 Kh8 21.Ng6 hg6 22.Rf3 Bg4 23.Ng4+–) 19.Bg7 Kg7 20.Qb2 f6 21.g5 Ng2 22.gf6 (22.Ng2!? Re8 23.Qf6 Qf6 24.gf6 Kf7 25.Nc7 Re5+–) 22...Kf7 23.Qg2 Rh8 (23...Bf5+–) 24.Ne7! (24.Ne7 Na7 25.Qd5 Ke8 26.Nfg6 hg6 27.Ng6+–) 1–0. Bartnik,Tomasz – Stepien, corr Poland, 1991.

6.g3 c6 7.Nf3 0–0 8.Nc3 d5 9.Bg2 Be6+=.

5.d4 ed4

6.ed4 Nc6 7.b5 Nce7 8.Nf3 Bg4 9.Be2 Nf6 10.0–0 0–0 11.Nbd2 a6 12.a4 ab5 13.ab5 Ra1 14.Qa1 Nh5 15.h3 Be6 16.Re1 Nf4 17.Bf1 Nd3 18.Bd3 Bf5 19.Bf5 Nf5 20.Ne4 Re8 21.d5 Bb2 22.Qb2 Re7 1–0. polynesia46 (1620) – yuryrene (1660), internet, 2014.

6.ed4 Nf6 7.Nd2 0–0 8.Bd3 c5 9.b5 (worse is 9.dc5 dc5 10.Be2 cb4–/+) 9...a6 10.a4 ab5 11.ab5 Ra1 12.Qa1 Re8 13.Ne2 Bg4 14.f3 Bf5 15.Bf5 gf5 16.Kf2 Qe7 17.Re1?? (better is 17.Qd1=) 17...Qe3–+ 18.Kf1 Qd2 19.dc5 Nd5 20.Bg7 Ne3 21.Kf2 Nc2 (worse is 21...dc5 22.Bc3 Qd8 23.Ng3+=) 22.Bc3?? (22.Qc3 Qe1 23.Qe1 Ne1 24.Ke1 Kg7 25.cd6–+) 22…Qe3 (22...Qe3 23.Kf1 Na1–+) 0–1. Van Esbroeck,Dirk – Ferluga,Sergio, SF–2009–0–00041, 2009.

6.Bd4 Bd4 7.ed4 c5 8.bc5 dc5 9.d5 Bf5 10.Bd3 (10.Qe2 Kf8 11.Qb2 Qf6+=) 10...Qa5?? (better is 10...Qf6 11.Bf5 Qa1 12.Qa4 Kf8–/+) 11.Qd2+/– Qd2 12.Kd2 Bd3 13.Kd3 Nf6 14.Nc3 0–0 15.Nf3 Nbd7 16.Rhe1 Rfe8 17.Nb5 Re1 18.Re1 (worse is 18.Ne1 Ne5 19.Kc3 Ne4 20.Kb3 a6+=) 18...a6 19.Nd6 b5 20.h3 (better is 20.a4!? bc4 21.Kc4+=) 20...Nb6+= 21.Ne5 bc4 22.Nec4 Nbd5 23.Ne5 Nb4 (better is 23...Nf4!? 24.Kc4 Ng2–/+) 24.Kc4= Na2 25.Kc5 Rd8 26.Nef7 Rd7 27.Ne5 Re7 28.f4 Nc3 29.g4 Nd7 30.Kd4 Nb5 (30...Re6!?+=) 31.Nb5+/– ab5 32.Rb1 Ne5 33.fe5 Rb7 34.Kc5 Kf7 35.Kc6 (35.Rb5 Rb5 36.Kb5 Ke6–+) 35...Rb8 36.Kd6 (36.Kd7 Rb7 37.Kc8+=) 36...b4 37.Rf1 1–0. kaasparov (1610) – helloyou94, internet, 2013.

6.Nf3 c5 7.a3 Nf6 8.ed4 0–0 9.Be2=.

6.Nf3 Bg4=.

5.d4 Nd7

6.Nc3 Ne7 7.Nf3 0–0 8.Be2 ed4 9.Nd4 (9.ed4 A) 9...c5 10.bc5 (10.a3) 10...dc5 11.d5 Nb6 12.0–0 Re8 13.Re1 Bg4 14.Nd2+=; B) 9...d5 10.c5 b6 (10...c6 11.0–0 Nf5 12.Re1 Qf6 13.Rb1 Re8 14.b5=) 11.0–0 c6 12.Re1 a5 13.a3 ab4 14.ab4=; C) 9...Nb6 10.0–0 Bg4 11.Nd2 Be2 12.Ne2 Re8 13.Re1 d5 14.c5=) 9...Ne5 (9...c5 10.Nc2 cb4 (10...Nb6 11.Rb1 Bf5 12.Nb5 Nc6 13.Bg7 Kg7 14.Rc1=) 11.Nb4 Nc5 12.Qd2 Qb6 13.Nbd5 Nd5 14.cd5=) 10.0–0 (10.a3 Be6 (10...a5 11.0–0 Be6 12.Ne6 fe6 13.f4 Nf7 14.Bf3=; 10...Nf5 11.0–0 Re8 12.Re1 Nd4 13.ed4 Ng4 14.Qd3=) 11.Ne6 fe6 12.f4 N5c6 13.Bf3 Nf5 14.Qd3=) 10...N7c6 (10...c5 11.bc5 dc5 12.Ndb5 Be6 13.Qb3 N7c6 14.Rad1=; 10...Re8 11.a3 Nf5 12.Re1 c6 13.Na4 Qh4 14.Qd2=; 10...a5 11.b5 Nf5 12.Qa4 Re8 13.Nd5 Nd7 14.Rad1+=) 11.Nd5 a5 (11...Be6 12.f4 A) 12...Nd4 A1) worse is 13.fe5 Ne2 14.Qe2 de5+= (14...Be5?! 15.Be5 de5 16.Nf6 Kg7 17.Qb2+=); A2) 13.Bd4+= Nd7 14.Bg7+=; B) 12...Nd7 13.Nc6 bc6 14.Bg7+=; 11...Ne7 12.Qd2 Re8 13.Rac1 c6 14.Ne7+=) 12.b5 (12.Nb5 ab4 13.Ndc7 (13.Qd2 Na5 14.Nbc7 Nac4 15.Qb4 Nd3 16.Bd3 Nb2+–) 13...Ra5 14.Qb3+/–) 12...Ne7+= 13.Qc1 (13.Qa4 Nd7 14.Qc2+=) 13...Nd7 (13...Re8 14.Rd1+=) 14.Nf4 (14.Nf3+=) 14...Nc5 15.Nf3 Nf5 16.Bg7 Ng7 17.Qc3 Nge6 18.Nd5 f5 19.g3 (19.Rab1 f4+=) 19...Ne4 20.Qb2 g5 21.b6 (21.Nd4!?=) 21...c6+= 22.Nc7 Nc7 23.bc7 Qc7 24.h4 h6 25.hg5 hg5 26.Bd3 Qe7 27.Kg2 ½–½. Mittelbachert,Ulrich – Bauch,Ralf, Recklinghausen, 2000.

6.d5 b6 7.e4 Ne7 8.a4 0–0 9.Bc1 a5 10.b5 Nc5 11.f3 f5 12.Bd3 fe4 13.Be4 (13.fe4 Nf5 (13...Nd3?! 14.Qd3 Rf7 15.Nf3=) 14.Nf3 Nd4+= (worse is 14...Nd3 15.Qd3 Nh4 16.0–0=)) 13...Bf5 (better is 13...Nf5 14.g3 Nd4–/+) 14.Nc3= h6 15.Nge2 g5 16.0–0 Qe8 17.Bf5 Nf5 18.Ne4 Ne4 19.fe4 Nh4 20.Ng3 Rf1 21.Qf1 Qg6 22.Nf5 Nf5 23.ef5 Qh5 24.h3 Bf6 25.g4 Qh4 26.Be3?? (better is 26.Ra3 h5 27.gh5=) 26...Qg3–+ 27.Kh1 Qe3 28.Re1 Qa3 29.h4 (29.Ra1 Qb3–+) 29...Qa4 (29...gh4 30.Ra1 Qb3 31.Qe2–+) 30.Qd3 (30.hg5 hg5 31.Qd3 Qb4–+) 30...Qb4 (30...gh4 31.Rb1–+) 31.Re2 (31.Rb1 Qc5 32.hg5 hg5–+) 31...Qc5 (better is 31...gh4!? 32.Kg2–+) 32.hg5 hg5 33.Rh2 Qd4 34.Qe2 Qf4 35.Rh6 Bg7 36.Re6 e4! 37.Kg2 Be5 38.Re7 Qh2 39.Kf1 Qe2 40.Ke2 a4 41.f6 a3 42.f7 Kf8 43.Rc7 a2 44.Ke3 a1Q 45.Ke4 Qd4 46.Kf5 Qf4 47.Ke6 Qf6 48.Kd7 Rd8 49.Kc6–+ Bd4 50.Kb7 Bc5 51.Kc6 Qa1 52.Rb7 Qa8 53.Kc7 Qc8 0–1. dtpwaldi – conill, internet, 2013.

6.d5 Ne7 7.Nd2 (7.Nf3 0–0=) 7...0–0 (7...a5 8.a3=) 8.Qc2 (8.Ngf3 a5=) 8...f5 (8...a5 9.a3+=) 9.Ngf3= Nf6 10.Be2 h6 (10...Bd7 11.0–0=) 11.h4 (11.0–0 a5 12.Qa4 Qd7+=) 11...a5 (11...b5 12.cb5 Ned5 13.Bc4=) 12.b5= b6 (12...a4 13.0–0=) 13.a4 (13.0–0 e4 14.Nd4 a4=) 13...Qe8 14.0–0–0 (14.Rd1 Qf7=) 14...Ne4 (14...Qf7 15.Rhf1=) 15.Rdf1 Qf7 (better is 15...Nc5!?=) 16.Ne4+/– fe4 17.Nd2 (17.Qe4? Bf5 18.Ne5 Be5–+ (18...de5?! 19.Qf3–/+)) 17...Bf6 (17...Bf5 18.g4 Bd7 19.Ne4+–) 18.Ne4+– Bf5 (18...Bg7 19.f4 Bf5 20.fe5 Be5 21.Be5 de5 22.h5+–) 19.g4 (19.Nf6!? Qf6 20.e4 Bg4+–) 19...Be4 20.Qe4 Bg7 (20...Bh8 21.Bd3+–) 21.Rh3 Kh8 (21...Rac8 22.Bd3 Bh8 23.h5+–) 22.Bd3 Qg8 23.f4 (better is 23.h5 g5 24.f4+–) 23...ef4? (23...Rae8 24.fe5 Rf1 25.Bf1 Rf8+–) 24.Qe7 Rae8 (24...Bb2 25.Kb2 fe3 26.Rf8 Rf8 27.Re3 Qg7 28.Qg7 Kg7 29.g5+–) 25.Qg7 (25.Qg7 Qg7 26.Bg7 Kg7 27.ef4+–) 1–0. Fichte,Wolfgang – Friedrich,Wolfgang (2095), Bad Zwesten op 5th, 2001.

6.d5 Ngf6 7.Bd3 =.

6.de5 de5 7.Nf3 Ne7 8.c5 0–0 9.Qb3 Nb8 (better is 9...a5!? 10.a3 ab4 11.ab4 Ra1 12.Ba1 Nc6=) 10.Ne5 Be6 11.Bc4 Bc4 12.Nc4 Qd5 13.Bg7 (13.0–0 Bb2 14.Nb2 Qb3 15.ab3 Na6+/–) 13...Kg7? (better is 13...Qg2 14.Bf8 Qh1 15.Ke2 Kf8+=) 14.0–0+/– Nf5 15.Nc3 Qe6 16.Rad1 Nc6 17.Nb5 Rfc8 18.Nd4 (18.Qc3 Kg8+/–) 18...Ncd4 19.ed4 (worse is 19.Rd4 Nd4 20.Qc3 Kg8 21.ed4 Re8+=) 19...Qd5 20.Ne3 Ne3 21.fe3 Qb3 22.ab3 Re8 23.Rfe1 Re4 24.b5 Rd8 25.d5 (25.Ra1 Ra8+/–) 25...f5 26.Kf2 Kf6 27.d6 cd6 28.Rd6 Rd6 29.cd6 Ke6 30.Rd1 Kd7 31.Rd4 Re5 32.b6 ab6 (better is 32...a6!?+=) 33.Kf3+= g5 34.g3 Rb5 35.b4 Re5 36.h4 h6 37.h5 (37.hg5 hg5 38.e4 fe4 39.Re4 Rd5= (39...Kd6 40.Re5 Ke5 41.Kg4+–)) 37...Re6 38.g4 (better is 38.Rd5!? Rf6 39.Ke2+=) 38...fg4+= 39.Kg4 (better is 39.Rg4!? Rd6 40.Rc4+=) 39...Re3–/+ 40.Kf5 Rh3?? (better is 40...Re1–/+) 41.Kg6+/– g4 (41...Rh4!? 42.Rd3 Rb4 43.Kh6 g4+–) 42.Kh6 (better is 42.Rg4 Kd6 43.Kh6+–) 42...g3+= (42...g3 43.Rd5 Rh4+/–). typ48 – lagueuse21, internet, 2013.

6.Nf3 Ne7 7.Be2 ed4 8.Nd4 0–0 9.0–0?? c5–+ 10.Ne6 fe6 11.Bg7 Kg7 12.Qd6 cb4 13.Qe6 Nc6 14.Rd1 Qf6 (14...Qf6 15.Qf6 Nf6–+) 0–1. Loulou – dmt, playchess.de, 2003.

6.Nf3 Ngf6 =.

5.d4 Ne7

6.d5 0–0 7.Nd2 (7.Nf3 a5+=) 7...c6 (7...Nd7 8.Ngf3=) 8.e4 (8.dc6 bc6 9.Ngf3 Nd7=) 8...a5 (8...f5 9.dc6 Nbc6 10.b5+=) 9.a3 (9.b5 cd5 10.cd5 f5=) 9...ab4 10.ab4 Ra1 11.Ba1 b5 (11...cd5!? 12.cd5 f5+=) 12.dc6+= bc4 (12...Nbc6!? 13.cb5 Nd4=) 13.b5+/– (13.Nc4?! Nbc6 14.Nd6 Nb4=) 13...d5 14.ed5 (14.Ngf3 de4 15.Ne5 c3 16.Bc3 Nd5+/–) 14...Qd5 15.Qb1 (15.Nc4?! Qb5 16.c7 Na6+=) 15...Bh6 (15...Be6 16.Nc4 Qc5 17.Nd2+/–) 16.Ngf3 Bf5 17.Qb2 (17.Qb4 Re8+–) 17...Nbc6 18.bc6 Nc6 19.Nc4?? (better is 19.Qc3 Bd2 20.Nd2+/– (20.Qd2?! Qe4 21.Be2 Rd8=)) 19...Rb8–+ 20.Nb6?? (better is 20.Qb8 Nb8 21.Be5–+) 20...Qa5 (20...Qa5 21.Qc3 Qb6–+ (worse is 21...Rb6 22.Qa5 Na5 23.Be5 Rb1 24.Ke2–+)) 0–1. Sternik,Ryszard – Bojzan,Grzegorz, corr ch Poland, 1993.

6.d5 Nd7 7.Nf3 =.

6.Nf3 0–0 (--> 5.Nf3 Ne7 6.d4 0–0).

5.d4 f6

6.de5 fe5 7.Nf3 Nf6 8.Nc3 0–0 9.Nd5 c6 10.Nf6 Qf6 11.Be2 Be6 (better is 11...Bf5!?=) 12.Qd6+/– Nd7 13.0–0 Rad8 14.Ng5 Qg5 (better is 14...Bf5!? 15.Qf6 Bf6+=) 15.Qe6+– Kh8 16.f4! Qf5 (16...ef4 17.Bg7 Combination) 17.Bg4 Qe6 18.Be6 ef4 19.Bg7 Kg7 20.Rad1 Nf6 21.ef4 Rfe8 22.f5 gf5 23.Bf5 Rd1 24.Rd1 Re2 25.a4 Re5 26.g4 h5 27.h3 hg4 28.hg4 (28.Bg4?! Ng4 29.hg4 Re4+=) 28...Kh6 29.Rd6 (29.Kf2!?+/–) 29...Kg5+= Exerts pressure on the isolated pawn 30.Kf2?? (30.b5 Re1 31.Kf2 Ra1+=) 30...Ng4?? (better is 30...Rf5 31.gf5 Ne4 32.Ke3 Nd6–+) 31.Bg4+= Kg4 32.Rd7 Re4 33.Rb7 Rc4 34.a5 a6 35.Ke3 Kf5 36.Kd3+– Rh4 37.Rb6 Ke5 38.Rc6 Rb4 39.Ra6 Kd5 40.Kc3 Ra4? 41.Kb3+– Rh4 42.Rg6 Kc5 43.a6 Rh3 44.Ka4 Rh4 45.Ka5 Rh1 46.Rg5 Kc6 47.Rg6 Kc7?? 48.Rg7?? Kc6= 49.Rg6 Kc7 50.Rg7 Kb8 51.Rg8 Ka7 52.Rg7 Ka8 53.Rg8 Ka7= 54.Rg7 Kb8 55.Rg8 Kc7 56.Rg7 ½–½. typ48 – topolovo, internet, 2013.

6.f4 Nc6 7.a3 Bd7 8.b5 Nb8 9.fe5 fe5 10.de5 de5 11.Qf3 Ne7 12.Nc3 Nf5 13.g4 Qh4 14.Ke2 Ne7 15.Ne4 Bg4 16.Rd1 Bf3 17.Nf3 Qh5 18.Bg2 0–0 19.Rdf1 Nd7 20.Neg5 Rf3 21.Nf3 Nf5 22.e4 Nd4 23.Ke3 Nc5 24.Rf2 Bh6 25.Ng5 Bg5 26.Rf4 Bf4 27.Kf2 Nd3 0–1. dtpwaldi – kalipe, internet, 2013.

5.Be2= b6

6.d4 e4 A) 7.Qc2 Nf6 8.Nd2 Qe7 9.a4 a5 10.c5 0–0 11.cd6=; B) 7.Nc3 Nf6 8.Qc2 Qe7 9.Nd5 Nd5 10.cd5 0–0 11.Rc1+=.

6.Bf3+= c6 7.Ne2 (7.d4 Qe7 (7...Ne7 8.Ne2 0–0 9.0–0 Be6 10.Nd2 a6 11.Qc2+=) 8.de5 Be5 9.Bd4 Nf6 10.Ne2 Bg4 11.Nd2+=) 7...Bb7 (7...Nf6 8.0–0 0–0 9.d3 Be6 10.Nd2 Qc7 11.d4=) 8.d4 Nd7 (8...Qe7 9.Nd2 f5 10.g3 Nf6 11.0–0=) 9.0–0 Ngf6 10.Nbc3 (10.Nd2 0–0 11.Ng3+=) 10...0–0 11.b5 ed4 (better is 11...Rc8!?+=) 12.Nd4+/– (12.ed4?! Qc8+=) 12...Nc5 (12...Ne5!? 13.bc6 Ba6+/–) 13.bc6+– Ba6 14.c7! Qc7 15.Ndb5 Bb5 (15...Qd7 16.Ba8 Ra8 17.Rb1+–) 16.Nb5 (16.cb5?! Rac8+/–; 16.Ba8 Bc4 17.Bf3 Bf1 18.Qf1 a6+=) 16...Qd7 17.Ba8 Ra8 18.Qd6 (better is 18.Bf6!? Bf6 19.Qf3 Qd8+–) 18...Qd6 19.Nd6 Na4 (19...Ne8 20.Ne8 Bb2 21.Nc7+–) 20.Bd4 Rd8 21.Nb5 a6 22.Nc7 Rc8 23.Na6 Rc4 (23...Ne4 24.Rac1+–) 24.Rfc1 b5 (24...Rc1 25.Rc1 Nd7 26.Rc4 Bd4 27.ed4+–) 25.Nc7 Nd7 26.Nb5 Rc1 27.Rc1 Bd4 28.ed4 Nf6 29.Nc3 Nb6 30.a4 Nbd5 31.a5 Nd7 32.Nd5 1–0. Bonetti,Shane – hollanda, ICC, 2002.

6.Nf3 Nf6 7.d4 e4 8.Nfd2 0–0 9.0–0 Re8 10.Nc3 c5 11.dc5 +=.

5.Be2= Ne7

6.Nc3 0–0 7.d3 a5 (7...Na6 8.a3 Bf5 9.Nf3 c5 10.b5 Nc7 11.0–0=; 7...f5 8.Nf3 a6 9.0–0 c5 10.Qa4 Nbc6 11.b5=) 8.b5 d5 9.cd5 Nd5 10.Nf3 e4 11.Nd4=.

6.Nc3 0–0 7.Nf3 Nd7 8.d4 Nf5 9.d5 (9.0–0 Re8 (9...a5; 9...ed4) 10.a3 a5 (10...ed4) 11.Qd3 ed4 12.ed4 c5 13.bc5 dc5 14.dc5=) 9...a6 (9...a5 10.a3 e4 11.Nd2 Re8 12.0–0 Nf6 13.Qc2 Qe7 14.b5+=; 9...e4 10.Nd2 a5 11.Qb3 Nh4 12.0–0 f5 13.g3 ab4 14.Qb4+=) 10.a4 (10.0–0 Nh4 (10...a5 11.a3 ab4 12.ab4 Ra1 13.Ba1 Re8 14.Qd3+=) 11.Nh4 Qh4 12.Qe1 Nf6 13.a3 Re8 14.e4+=; 10.a3 e4 (10...a5 11.0–0 ab4 12.ab4 Ra1 13.Ba1 Qe7 14.e4+=; 10...Nh4 11.0–0 Nf3 12.Bf3 Qh4 13.Be2 Nf6 14.Qe1+=) 11.Nd2 Nf6 12.Rg1 h5 13.h3 h4 14.Nce4=) 10...Nh4 (10...a5 11.b5 Nc5 12.0–0 e4 13.Nd2 Re8 14.Nb3=) 11.g3 (11.Nh4 Qh4 12.a5 (12.0–0 a5= 13.Nb5 Qd8 14.ba5=) 12...Nf6 13.0–0 Ng4 14.h3+=) 11...Nf3+= 12.Bf3 f5 (12...a5 13.b5 Nb6 14.Qe2+=) 13.0–0 (13.a5 e4 14.Be2=) 13...e4 14.Be2 Ne5 15.Rb1 a5 16.ba5 Ra5 17.Nb5 b6 18.Bc3 Ra8 19.a5 ba5 20.Ra1 Bd7 (20...Qd7 21.Ra5 Ra5 22.Ba5=) 21.Ra5= Bb5 22.Rb5 Nf3 23.Bf3 Bc3 24.Be2 Ba5 25.c5 dc5 26.Rc5 Bb6 27.Rc6 Rf6 28.Qc2 Rd6 29.Rd6 Qd6 (29...cd6 30.Bb5=) 30.Qc6 (30.Bb5!?+=) 30...Qc6= 31.dc6 Ra5 32.Rc1 Kf8 33.Bd1 Ke7 34.Bb3 h6 35.Bg8 g5 36.h3 Kd6 37.Bh7 f4 38.Rd1 Ke5 39.ef4 gf4 40.gf4 Kf4 41.Re1 Re5 42.Kf1 Kf3 43.Re2 h5 44.Bg6 h4 45.Re1? (45.Rb2 Rg5 46.Bh7 Rd5 47.Rb3 Kf4+=) 45...Bf2–/+ 46.Re4?? (better is 46.Be4 Kg3 47.Re2–/+) 46...Re4 (46...Rc5!? 47.Re1 Be1 48.Ke1 Rc6 49.Bf5–+) 47.Be4 Ke4 48.Kf2 Kd5 49.Kf3 Kc6 50.Kg4 Kd5 (50...Kb5 51.Kh4 c5–+) 51.Kh4= c5 52.Kg4?? (better is 52.Kg3=) 52...Ke4–+ 53.Kg3 Ke3 54.Kg2 c4 0–1. Grosmelder,Karl – Pogoskin,Roman, Ch Moscow (for the Deaf) (final), 1999.

6.Nc3 0–0 7.h4 Nf5 (7...h6 8.h5 g5 9.Kf1 Be6 10.d3 f5 11.a3+=; 7...a5 8.b5 h6 9.Nf3 Bg4 10.d4 Nd7 11.de5=; 7...Na6 8.a3 h6 9.h5 g5 10.Kf1 c5 11.bc5+=) 8.h5 a5 (8...g5 9.Bd3 h6 10.a3 Ne7 11.Nge2+=) 9.b5 (9.hg6 fg6 10.b5 Nd7 11.d3=) 9...g5 (9...Nd7 10.g4 Ne7 11.d4=) 10.Qc2 (10.Bd3 h6 11.Nge2=) 10...Nh6 (10...h6 11.Kf1=) 11.Nf3 (11.Bf3=) 11...g4 12.Nh4 ½–½. Pietrzak,Janusz – La Mein, corr ICCF, 1972.

6.d3 0–0 7.Qc2 Be6 (7...f5 8.Nf3 f4 9.e4 g5 10.h3 Ng6=) 8.Nf3 h6 (8...c6 9.0–0 a5 10.ba5 Qa5=) 9.0–0 f5 10.Nbd2 (10.Nc3 Nd7=) 10...g5 (10...a5=) 11.Ne1 f4 12.ef4 gf4 13.Nef3 Nf5 14.Nb3 Nd7 ½–½. Sternik,Ryszard – Kruglov,V, corr m Poland–Ukraine, 1992.

6.d3 0–0 7.Nc3 a5 8.b5 d5 9.cd5 Nd5 10.Nf3 e4 =.

6.d3 0–0 7.Nd2 a6 8.Qc2 Bd7 9.Bf3 Bc6 10.Ne2 Nd7 11.0–0 Bf3 12.Nf3 c5 13.a3 Rc8 14.Rfc1 b6 15.Qd2 Rc7 16.Rc2 Qa8 17.Ne1 d5 18.cd5 Nd5 19.e4 Ne7 20.Rac1 Qa7 21.a4 Nc6 22.Ba3 Nd4 23.Nd4 ed4 24.bc5 Nc5 25.Bc5 Rc5 26.Rc5 bc5 27.Rc4 Rb8 28.Qc2 Bf8 29.f4 Rb4 30.Nf3 Qb6 31.Nd2 Qa5 Attacks the isolani on a4 32.Rb4 Qb4 33.Kf2 h5 34.g3 f6 35.Ke2 Bd6 36.Qc4 Qc4+= 37.Nc4 Bc7 38.Kf3 Kf7 39.h3 Ke6 40.g4 hg4 41.hg4 g5 42.f5 Kd7 43.Ke2 Kc6 44.Kd2 Bf4 45.Kc2 Bg3 46.Kb3 Bc7 47.Nb2 Bf4 48.Kc4 Bc7 49.Nd1 Bg3 50.e5 Be5 51.Nf2 Bd6 52.Ne4 Attacks the backward pawn on c5 52...Be7 53.a5 Bd8 54.Nc5 Ba5 55.Na6 Bb6?? 56.Nb4+– Kd6 57.Nd5 Ke5?? 58.Nb6 1–0. Zielke,Bernd – Kollhoff,Josef, Schleswig Holstein–ch A, 2009.

6.d3 0–0 7.Nf3 e4 8.Bg7 ef3 9.Bf8 fe2 10.Qe2 Qf8 =.

6.d4 0–0 7.Nf3 Bg4 8.0–0 a5 9.b5 Nd7 10.de5 Qe8 +=.

6.d4 a5 7.b5 Nd7 8.Nf3 0–0 9.0–0 Re8 10.Nbd2 Nf5 =.

6.Nf3

6.Nf3 (--> 5.Nf3 Ne7 6.Be2).

6.Nf3 0–0 7.d4 (--> 5.Nf3 Ne7 6.d4 0–0 7.Be2).

5.Be2= f5

6.d4 ed4 7.ed4 Nf6 8.Nf3 0–0 9.0–0 Nbd7 10.Nbd2 Ne4 11.Qc2 Ndf6 12.Rfe1 Bh6 (12...Re8 13.d5+=) 13.Bd3 d5 14.cd5 (14.Ne4? fe4 15.Be2 ef3 16.Bf3 c6–+) 14...Nd2 15.Nd2 Nd5 16.Bc4 c6 17.Nf3 f4 18.a4 Bf5 19.Qb3 a6 (19...Bg7!?+=) 20.Re5+/– Bg7 21.Bd5 cd5 22.Rd5 Be6 23.Rd8 Bb3 24.Ra8 Ra8 25.a5 Bf8 26.Ba3 Rc8 27.h3 Bd5 28.Ne5 Rc2 29.Bc1 (29.Nd3!?+=) 29...g5+= 30.Nd3 Bc4 31.Nc5 (better is 31.Ne1 Re2 32.Nf3=) 31...Bg7–+ 32.Ne4? (better is 32.Ba3 Bd4 33.Rc1 Bf2 34.Kh1–+) 32…Bd4 (32...Bd4 33.Bb2 Bb2–+) 0–1. Palikarski,Vasil – Georgiev,Georgi (2145), BUL–chT, 2003.

6.Nf3 Nc6 7.b5 Nce7 8.d4 +=.

6.Nf3 Nf6 7.Qb3 e4+= 8.Ng5 h6 9.Nh3 0–0 (9...a5 10.0–0+=) 10.Nc3 (10.d4 ed3 11.Bd3 a5=) 10...c6 (10...a5 11.0–0+=) 11.f3 Be6 12.a4 White intends b5 (12.0–0 d5=) 12...Nbd7 (12...ef3 13.Bf3 d5 14.cd5 Nd5 15.Bd5 Qh4 16.g3 Qh3 17.Be6 Kh7 18.Qc4+–) 13.d4 (13.0–0 Ne5=) 13...ed3 14.Bd3 (14.Nf4 Re8 15.Bd3 Qb6 16.Ng6 Nc5–/+) 14...Qb6 (better is 14...Ne5 15.Rd1 Qb6+=) 15.Nd1? (15.Kf2 Nc5 16.Qc2 Qb4–+) 15...a5 (better is 15...Nc5!? 16.Qc2 Nd3 17.Qd3 Qb4 18.Qc3 Qc3 19.Nc3 Bc4–+) 16.b5–/+ Nc5 17.Qc2 Nd3 (17...cb5 18.ab5 Rfc8 19.Be2–/+) 18.Qd3 Qc5 19.Rc1 (19.Ba3 Qe5 20.Bb2=) 19...Qb4–+ 20.Kf2? (20.Bc3 Qa4 21.Nb2 Qa3–/+) 20...Ne4! 21.Ke2 (21.fe4 Bb2 Annihilates a defender: b2) 21...Bb2 22.Rc2? (22.Nb2 Qb2 23.Rc2 Qb4 24.fe4 fe4–+ (24...Qa4 25.Nf4 fe4 26.Qe4–+)) 22...Nc3 (22...Nc5 23.Rb2 Bc4 24.Rb4 Bd3 25.Kd2 ab4 26.Nb2 cb5 27.Nd3 Nd3 28.Kd3 ba4 29.Nf4–+) 23.Kf2?? (23.Nc3 Bc4 24.Rb1 Bd3 25.Kd3 Bc3 26.Rb4 ab4 27.Nf4–+) 23...Bc4 24.Qd2 Na4 (24...Ne4 25.fe4 Qd2 26.Rd2 fe4 27.Ke1–+) 25.Qb4 ab4 26.Rc4 c5 27.Nf4 Kf7 28.Re1 (28.Nd5 Be5–+) 28...Bf6 (28...Bc3 29.Nc3 Nc3 30.b6–+) 29.Nd5 Nb2 (29...Be5 30.f4 Bf6 31.e4–+) 30.Nb2 Ra2 (30...Bb2 31.e4 fe4 32.Rce4–+) 31.Kg3 (31.e4 Bb2 32.Re2 fe4 33.Rce4 Bd4 34.Ke1 b3–+) 31...Rb2 (31...Be5 32.f4 Bb2 33.e4–+) 32.Rd1 Rd8 (32...Be5 33.f4 Bg7 34.Kf3–+) 33.Nf6 Kf6 34.Rc5 dc5 A pinning theme 35.Rd8 c4 36.Rb8 (36.Rd6 Kg5–+) 36...Rd2 (36...Re2!? 37.e4–+) 37.Rb7 Rd6 (37...Ke5!? 38.b6–+) 38.Rc7–/+ c3 (38...Rb6!? 39.Rc4 Rb5 40.Rc6 Kf7 41.Rc7 Ke8 42.Rc8 Kd7–/+) 39.Rc4+= c2 (39...Rd3 40.Rb4 Re3 41.Rc4=) 40.Rc2= Rb6 41.f4 (better is 41.Rc5!?=) 41...Rb5–/+ 42.Rc6 Kf7 43.Rc2 (43.Rc7 Ke8 44.Rc8 Kd7–/+) 43...Ke6 (43...b3 44.Rb2–+) 44.Kf3 (44.Rc6 Kd5 45.Rg6 h5+=) 44...b3–/+ 45.Rb2 (45.Rc6 Kf7 46.Rc7 Kf6–+) 45...Kd5 46.Ke2 (46.g4 Rb6–/+) 46...Kc4 (46...Ke4 47.Kd2–+) 47.Kd2 Rd5 Black launches an attack 48.Kc1 Kc3 49.Re2 Ra5 Threatening mate: Ra1 50.Kb1 Ra2 (better is 50...Rd5 51.Kc1 Kd3–/+) 51.Re1?? (better is 51.Ra2 ba2 52.Ka2+=) 51...Rg2 52.h4 (52.h3 Kd2 53.Rc1 Rh2–+) 52...Kd2 53.Rc1 Ke3 (better is 53...Rh2 54.Rc6–+) 54.Rc4 (54.Rc3 Kf4 55.Rb3–+) 54...Rh2 55.h5 Rh5 56.Kb2 Rh4 57.Rc6 (57.Rc8 Rf4 58.Kb3 g5–+) 57...Rg4 (57...Kf4 58.Kb3 g5 59.Kc3–+) 58.Kb3 Kf4 (58...Kf4 59.Kc2 h5–+) 0–1. Danek,Vaclav – Brousek,Jan, Klatovy op, 1995.

6.Nf3 Nf6 7.Nc3 0–0 8.0–0 c6 9.a4 (9.d4 e4 10.Ng5 c5 11.dc5 dc5 12.bc5 Nc6+=) 9...h6 10.Qc2 (10.d4 e4 11.Ne1 d5+=) 10...g5 (10...e4 11.Ne1=) 11.Rad1 Nh7 (11...g4 12.Ne1+=) 12.Kh1 (12.d4 g4 13.Ne1 ed4 14.ed4 Ng5+=) 12...g4+= 13.Ng1 Na6 14.Ba3 Nc7 15.f4 Kh8 (15...ef4 16.ef4 Be6 17.Rfe1=) 16.d4 (16.fe5 de5 17.b5 Re8+=) 16...ed4+= 17.ed4 Ne6 18.d5 Nd4 19.Qd2 Bd7 20.Bb2 a6 21.a5 c5 22.bc5 dc5 23.Na2 Re8 24.Nc1 Ba4 25.Bd4 Bd4 26.Rde1 Qf6 27.Bd3 Re1 28.Qe1 (worse is 28.Re1 Bc3 29.Qe3 Be1 30.Qe1 Re8+=) 28...Bc3 29.Qe6 (29.Qf2 Bb4+=) 29...Ba5= 30.Bf5 Re8 31.Qf6 Nf6 32.Nge2 (32.Nd3 Bb4=) 32...h5 (32...b5 33.Bd3+=) 33.h3 (33.Bg6!? Re3 34.Ng3+=) 33...b5+= 34.hg4 hg4 35.cb5 Bb5 36.Be6 Kg7 37.f5? (better is 37.Rd1–+) 37...Bd2 38.Rd1 (38.Kg1 Be3 39.Kh2–+) 38...Be3 (38...Rh8 39.Kg1 Be3 40.Kf1 Rh1) 39.g3–/+ Ne4 40.Kg2 Nd6 41.Rh1 (41.Nc3 Bc4–/+) 41...Bg5 42.Nf4 Kf6 (42...Bf4 43.gf4 Ne4 44.Re1–/+) 43.Nb3 Ne4 (43...c4 44.Nh5 Ke7 45.Nd4–/+) 44.Rh7 (better is 44.Re1 c4 45.Re4 cb3 46.Nh5 Ke7 47.f6 Kd6 48.f7=) 44...Ke5?? (better is 44...Bf4 45.gf4 Rf8+=) 45.Ng6+/– Kd6 46.Na5 Re6 47.de6 (47.fe6?! c4=) 47...Nf6 (47...c4!? 48.Nb7 Kd5+–) 48.Nb7+– Kd5 49.Rf7 (49.Rh1 Bd3 50.Ne7 Kd4 51.Nc6 Kd5+–) 49...Be8 (49...c4 50.Rc7+–) 50.Rc7+– Be3 51.Nf4 Ke5 52.Nc5 (52.Rc5?! Bc5 53.Nc5 a5=) 52...Kf5 53.Nd7 (53.e7 Ke5 54.Na6 Kd6+–) 53...Ne4? (53...Bf4!? 54.gf4 Nd5+=) 54.Nd5 (54.Rc6 Nf6+–) 54...Bg5 (54...Ke6!? 55.Ne3 Bd7+/–) 55.Nf8 Ke5 56.Nf4! Kd6 (56...Bf4 57.Nd7 Double attack (57.Nd7 Decoy; 57.gf4 Passed pawn)) 57.Rc8 Bb5 58.Rd8?? (58.N8g6!?+/–) 58...Ke7 (better is 58...Bd8 59.N8g6 Bc4–+) 59.Rb8 Bc6 (59...Bf4!? 60.gf4 Bd3+/–) 60.N8g6+– Kd6 61.Rb6 Nf6 (better is 61...Kc7 62.Ra6 Nc5 63.Rc6 Kc6+/–) 62.Rc6 Kc6 63.e7 +–. Wagner,Jean Philippe (1680) – Piot,Olivier (2210), Noisy op, 2003.

6.Nf3 Nf6 7.d4 e4 8.Nfd2 Nc6=.

5.Be2= Nf6

6.d3 Na6 7.a3 (7.b5 Nc5 8.Nf3 0–0 9.Nc3 a6 10.0–0 ab5 11.cb5 Be6 12.Ng5 Bd7=) 7...c5 8.b5 Nc7 9.Nf3 a6 10.ba6 Ra6 11.0–0 0–0 12.Nc3 Bg4=.

6.d3 Nc6 7.b5 Ne7 8.Nf3 a6 9.ba6 Ra6 10.c5 Rc6 11.cd6 cd6 12.0–0 0–0=.

6.d4 ed4 7.ed4 0–0 8.Nf3 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.ed4).

6.d4 ed4 7.ed4 d5 8.Nf3 dc4 9.Bc4 Qe7 10.Ne5 Nfd7 11.0–0 Ne5 12.de5 Qb4+=.

6.d4 Bf5 7.de5 Ne4 (7...Nfd7 8.Bc3 de5 9.Nf3= Qf6 10.Nbd2 0–0 11.Qa4 Rd8 12.e4 Be6=) 8.Qa4 (8.Bf3 Qh4 9.g3+– Qg5 10.h4 Qd8 11.g4 Bg4 12.Bg4 Be5+–) 8...c6 (8...Nc6 9.Qb5 Rb8 10.Nf3 0–0 11.Qa4 Qe8 12.0–0 Nd4=) 9.Nf3 a6 (9...Nd7!?+= 10.0–0 de5 11.Nc3 Nc3 12.Bc3 Nb6+=) 10.Qb3 (10.Bd4 Bg4 11.ed6 Bd4 12.Nd4 Qf6+/–) 10...0–0 (10...de5 11.Ne5 0–0 12.0–0 a5+/–) 11.0–0 (11.ed6 Bb2 12.Qb2 Qd6+/–) 11...Nd7 (11...de5!? 12.Ne5 a5+/–) 12.ed6+– Bb2 (12...Nd6+–) 13.Qb2 Nd6 14.Rd1 Ne4 15.Nbd2 b5 (15...Qf6 16.Qf6 Ndf6 17.Ne4 Ne4 18.Nd4+–) 16.Nd4 (better is 16.Ne4 Be4 17.Qd4+–) 16...Nf2?? (better is 16...Qf6+–) 17.Nf5 Nd1 (17...gf5 18.Kf2 Qe7+–) 18.Nh6 1–0. Bonetti,Shane – guest642, ICC, 2002.

6.Nf3 0–0 (-->1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.Be2 e5).

5.Nf3 a5

6.Qa4 Bd7 7.b5 Bg4 8.Be2 Nd7 9.h3 Bf5 10.d4 Nb6=.

6.ba5 Nf6 7.d4 (7.Be2 0–0 8.d4 Nc6 9.0–0 Ra5 10.Bc3 Ra8=) 7...Nc6 8.de5 Ng4 9.c5 dc5 10.Qd8 Kd8=.

6.b5 a4 7.a3 Bg4 8.Be2 Nd7 9.h3 Be6 10.Nc3 Ngf6 (10...Nb6 11.d3=) 11.Na4+= 0–0 12.Nc3 Nc5 13.d4 ed4 14.ed4 (worse is 14.Qd4 Nfe4 15.Qg7 Kg7 16.Ne4 f6 17.Nc5 dc5–/+) 14...Nce4 15.Ne4 Ne4 16.0–0 Re8 17.d5?? (better is 17.Qc2+/–) 17...Bb2–+ 18.de6 Ba1 (18...Re6 19.Nd4 Re8 20.Ra2 Ba3 21.Qd3–/+) 19.ef7–/+ Kf7 20.Qa1 Qf6 21.Bd3 Qa1 22.Ra1 Nc5 23.Bf1 Na4 24.Nd2 Nc5 25.Kh2 (25.Nf3 Ra4 26.Nd4–+) 25...Ra4–/+ 26.Kg3 Ne4 27.Ne4 Re4 28.Kf3 Re8 29.Bd3 Rea8 30.Ke4 Ra3 31.Ra3 Ra3 32.Be2 Ra2 33.Ke3 Ke7 34.Bf3 Ra3 35.Kd4 Rf3 36.gf3 Kd7 37.f4 c6 38.b6 Ke6 39.f3 (better is 39.Ke4–+) 39...Kf5 40.Ke3 c5 41.h4 h5 42.Kf2 (42.Ke2 Kf4 43.Kf2–+) 42...Kf4 43.Ke2 Kg3 44.Ke3 Kh4 45.Ke4 g5 46.Kd5 g4 47.f4 (47.fg4 hg4 48.Kd6 g3–+) 47...g3 0–1. typ48 – vladimr, internet, 2013.

6.b5 Be6 7.Be2 Nd7 8.d4 ed4 9.0–0 Ne7 10.Bd4 0–0 11.Bg7 Kg7 12.Qd4 Nf6 13.e4 b6 (13...Re8 14.Rd1+=) 14.Nc3+/– h6 15.Rad1 Qc8 16.Nd2 Neg8 17.f4 Kh7 (17...Rd8 18.Bf3+/–) 18.e5 de5 White terminates the opponent with strong threats 19.fe5 Nd7 20.Bf3 Rb8 21.Bc6 Ne7 22.Nde4 Nc6 23.bc6 Nc5 24.Nc5 bc5 25.Qc5 Qa6 26.Nd5 Rfc8 27.Rf6 Rf8?? (better is 27...Kh8+–) 28.Nc7 (28.Nc7 Qc4 29.Ne6 Qc5 30.Nc5+–) 1–0. MrkT – SirKano, internet, 2005.

6.b5 f5 7.d4 (7.Be2 Nf6+=) 7...Nd7 (7...e4 8.Nfd2=) 8.Nc3 Nh6 9.Qc2 (9.Be2 0–0+=) 9...Nf7 (9...0–0 10.Be2=) 10.Be2+= 0–0 11.Na4 (11.0–0 e4 12.Nd2 Qg5+=) 11...Qe7 Black intends e4 (11...e4 12.Nd2=) 12.c5 (12.0–0 e4 13.Nd2 h6+=) 12...e4= 13.cd6 cd6 14.Nd2 d5 15.Qb3 Qe6 (15...Qg5 16.Bf1 f4 17.ef4=) 16.Ba3 Re8 17.Rc1 Bf8 (17...f4 18.Nc5 Nc5 19.Bc5=) 18.0–0 Ba3 19.Qa3 Nb6 20.Rc5 Na4 21.Qa4 Qd6 22.Qb3 Be6 23.b6 Rec8 24.Rfc1 Rc5 25.Rc5 a4 26.Qb4 (26.Qb2 f4+/–) 26...Nd8 27.Nb1 Nc6 28.Qc3 Ne7 29.Qb4 (29.Ra5 Rc8 30.Qb2 Qc6+=) 29...Nc6 30.Qc3 (30.Qa3 f4+=) 30...Ne7= 31.Qb4 (31.Ra5 Rc8 32.Qb2 Qc6+=) ½–½. Waechtler,Frank – Hogenacker,Jacques (2290), Porz op, 1991.

6.b5 Nf6 7.Nc3 =.

6.b5 Nf6 7.d4 0–0 8.Be2 ed4 9.Bd4 Bf5 10.0–0 Nbd7=.

5.Nf3 b6

6.Qc2 Bb7 7.Be2 Nd7 8.d3 Ne7 9.0–0 0–0 10.Nbd2 c5 11.b5 f5 Black intends e4 12.a4 e4? (12...Re8 13.a5=) 13.Ng5 (13.Bg7!? Kg7 14.de4+–) 13...ed3 14.Bd3 Qc8? (better is 14...Bb2 15.Ne6 Qc8 16.Qb2 Ne5 17.Nf8 Nd3=) 15.Bg7+– Kg7 16.Ne6 Kg8 17.Nf8 Qf8 18.f3 (18.a5 a6+–) 18...Ne5 19.e4 Nd3 (19...a6 20.Rfe1+–) 20.Qd3 Rd8 21.Qc3 Qh6 22.Rad1 Kf7 23.Rfe1 White prepares e5 23...Ng8 24.Nf1 Nf6 25.e5 Nh5 (25...Ne8+–) 26.ed6 Nf6 (26...Qf8+–) 27.Re7 (27.Re7 Kg8 28.Qf6+–) 1–0. ourang – biagio63, internet, 2013.

6.Be2 Bb7 7.0–0 Nd7 8.d3 Ne7 9.Nbd2 0–0 10.Qc2 Rc8 11.a4 c5 12.b5 Ra8 13.Ra3 (13.a5 a6+=) 13...a5 14.Rd1 Nf5 15.Nf1 (15.h3 Re8=) 15...Qe7 Black prepares e4 16.Re1 Qd8 17.Rd1 Qc7 18.N1d2 Nf6 19.d4 (better is 19.h3!?=) 19...e4–/+ 20.Ng5 Qe7?? (better is 20...cd4 21.Bd4 Nd4 22.ed4 Rfe8–/+) 21.d5+= Rae8 22.Bf6 Bf6 23.Nge4 Bg7 24.g3 Bc8 25.Bf1 Nh6 26.Bg2 Bf5 27.f3 Kh8 28.Re1 Ng8 29.g4 (29.Bf1 Nf6+=) 29...Be4 (29...Bd7 30.Nf1+=) 30.Ne4+/– (30.fe4?! Qh4 31.Qd1 Nf6=) 30...f5 31.gf5 Rf5 32.Ng3 Rff8 33.Re2 (33.Rf1 Qh4+/–) 33...Nh6 34.Kh1 (34.Qe4 Qg5 35.Qd3 Nf5+=) 34...Nf7 (34...Nf5+=) 35.e4 (better is 35.f4+/–) 35...Bd4 36.Re1 Qh4 37.Qd2 Ne5 38.Rc1 Rf7 (38...g5=) 39.Rc2 (better is 39.Ne2+=) 39...Ref8–/+ 40.Qe2 Rf4 (better is 40...Kg7–/+) 41.Qf1?? (better is 41.Qd1=) 41...Ng4!–+ 42.Bh3 (42.fg4 Rf1 Pinning (42...Rf1 Deflection)) 42...Ne3 43.Re3 Be3 44.Bg2 Bd4 45.Ne2?? (45.Qe1–+) 45...Re4!! 46.Ng3 (46.fe4 Rf1 Pinning (46...Rf1 Deflection; 46...Rf1 Decoy; 46...Rf1 Clearance)) 46...Re3 47.Re2 (47.Qc1 Rf5! 48.Qf1 Be5–+) 47...Rfe8 48.Re3 (48.f4 Re2 49.Ne2 Re3–+) 48...Re3 49.Ne2 (49.Qd1 Be5 50.Kg1 Rc3–+) 49...Re8 (better is 49...Be5 50.f4 Bf4 51.h3–+ (51.Qf4?? Qf4 52.Nf4 Re1 53.Bf1 Rf1 54.Kg2 Rf4–+; 51.Nf4?? Re1 52.Nh3 Kg7–+)) 50.Bh3 (50.Ng3–+) 50...Re3 51.Qg2?? (better is 51.Bg2 Be5 52.f4 Bf4 53.Bh3 (53.Qf4?? Qf4 54.Nf4 Re1 55.Bf1 Rf1 56.Kg2 Rf4–+; 53.Nf4?? Re1 54.Nh3 Rf1 55.Bf1 Kg7–+) 53...Rh3 54.Qf4 Qf4 55.Nf4–+) 51...Qe1–+ 52.Ng1 Rf3 53.Qg5 Qg1 (53...Qg1 54.Qg1 Bg1–+ (54...Rh3?? 55.Qf1 Rh2 56.Kh2+–)) 0–1. Pfueller,Volker – Bensch,Wolfgang, 6th Berlin–ch Seniors, 2010.

6.Be2 Bb7 7.0–0 Nd7 8.d3 Ngf6 9.e4 (9.Nc3 0–0=) 9...0–0 10.Nc3 a5 11.b5 Nc5 12.a4 Ne6 13.Ba3 Nd7 14.Bc1 (14.Bb2 Re8=) 14...f5+= 15.Bd2 f4 (15...Ndc5 16.Qc2+=) 16.Kh1 Rf7 17.Rc1 g5 (17...Nf6 18.h3=) 18.g4 (18.h3 h6=) 18...Nf6 (18...Rf6 19.Rg1+=) 19.Rg1= Kf8 20.Rc2 (20.Nd5 h6=) 20...Ke7 (20...h6 21.Nd5+=) 21.Bc1 (21.h4 h6=) 21...Qh8 22.Nd5 Bd5?? (better is 22...Kf8=) 23.cd5+– (23.ed5?! Nd4 24.Ng5 Nc2 25.Qc2 h6 26.Nf7 Kf7+–) 23...Nc5 (23...Nd4 24.Nd4 ed4 25.Rc7 Nd7 26.Ba3+–) 24.Ng5 Rff8 25.Ba3 (25.Ne6 Rfc8 26.g5 Nfd7+–) 25...Rac8?! (25...Nfd7+–) 26.Bc5 bc5 (26...dc5 27.Ne6+–) 27.Ne6 Rg8 (27...Nd7 28.g5+–) 28.Qe1 (28.g5 Nd7+–) 28...h5 (28...Nd7 29.g5+– (worse is 29.Qa5 Ra8 30.Qc3 Ra4+–)) 29.g5 Ng4 (29...Nd7 30.Qf1+– (worse is 30.Qa5 Ra8 31.Qe1 Ra4+–)) 30.Bg4 (better is 30.Bf3 Ra8+–) 30...hg4 31.Rg4 (31.Qa5?! Qh3 32.Qe1 Rh8+/–) 31...Qh3 32.Rg2 (32.Qd1 Ke8+–) 32...Qd3 (32...Bf8+–) 33.Rc3 (33.Rc3 Qd4 34.Nd4 ed4 35.Rh3+–) 1–0. Pfueller,Volker – Paris,Gerhard, 2rd Berlin Germany, Senior Championship, 2010.

6.Be2 Nf6 7.d4 ed4 8.ed4 Bb7 9.0–0 0–0 10.Nc3 Ne4 11.Ne4 Be4 12.Bd3 Bd3 13.Qd3 c5 14.a3 Nc6 15.b5 Na5 16.Bc3 Nb7 17.d5 Bc3 18.Qc3 f5 19.Rae1 Re8 20.Re8 Qe8 21.Re1 Qf7 22.Ng5 Qg7 23.Qg3 h6 24.Ne6 Re8 25.Qe3 Qh8 26.h3 g5 27.Qg3 f4 (27...Qf6 28.f4+–) 28.Qg4 Qf6 29.Re4 Nd8? (better is 29...Qg6 30.Rf4 Nd8+–) 30.Ng5 Re4 31.Ne4 Qg7 32.Qf4 Nf7 (32...Qa1 33.Kh2 Qe5 34.Qe5 de5 35.Nd6+–) 33.Nd6 Qe5 (33...Nd6 34.Qd6 Kh7+–) 34.Qf7 (34.Qf7 Kh8 35.Ne8 Qa1 36.Kh2+–) 1–0. pierre – chrisalvin2005, ChessHere.com, 2006.

5.Nf3 c6

6.d4 ed4 7.Bd4 (7.Be2 c5 8.0–0 Ne7 9.b5 a6 10.ed4 ab5 11.cb5+=; 7.Nd4 Qb6 8.Qd2 Nf6 9.a3 0–0 10.Nc3 Rd8 11.Bd3+=) 7...Nf6 8.a3 c5 9.Bc3 0–0 10.Be2 a5 11.b5+=.

6.d4 e4 7.Nfd2 d5 8.Nc3 Nf6 9.Be2 0–0 10.0–0 Qe7 11.b5+=.

6.d4 e4 7.Nfd2 Qe7 8.Nc3 Nf6 9.Be2 0–0 10.0–0 d5 11.b5+=.

6.d4 e4 7.Nfd2 f5 8.Qb3 d5 9.Nc3 Ne7 10.cd5 cd5 11.b5 0–0 (11...Be6!?+=) 12.Ba3+/– Be6 13.Be7 Qe7 14.Nd5 Qf7 15.Bc4 Rc8?? (better is 15...Kh8+/–) 16.Nf6!! (16.Nf6 Kh8 17.Be6+–) 1–0. Heqexe – Stucer, internet, 2017.

6.d4 e4 7.Nfd2 Nf6 8.Be2 0–0 9.0–0 c5 10.Nc3 cd4 11.ed4+=.

6.Be2 Ne7 7.d3 (7.d4 Bg4 (7...a5 8.de5 ab4 9.Qb3 de5 10.Ne5 0–0 11.0–0+=) 8.de5 Bf3 9.Bf3 Nd7 10.Nc3 Ne5 11.Be2+=; 7.0–0 Bg4 8.d4 e4 9.Nfd2 Be2 10.Qe2 f5 11.Nc3+=) 7...0–0 (7...Qb6 8.a3 a5 9.d4 ed4 10.ed4 ab4 11.Qb3=; 7...Bg4 8.h3 Be6 9.d4 e4 10.Nfd2 f5 11.0–0=) 8.Nbd2 (8.d4 Nd7 9.0–0 ed4 10.Bd4 Ne5 11.Re1=) 8...Be6 (8...e4 9.Bg7 ef3 10.Bf8 fe2 11.Qe2=) 9.d4 (9.a3 Nd7 10.0–0 a5 11.d4+=) 9...Qc7 (9...Nd7 10.0–0 a5 11.a3+=) 10.Rc1 (10.0–0 Nd7 11.Qc2+=) 10...f5 (10...Nd7 11.0–0=) 11.Ng5 (11.0–0=) 11...Bf7 12.a3 e4 13.Nf7 Rf7 14.Qb3 Nd7 15.c5 (15.0–0 Nf6+=) 15...d5= 16.a4 Raf8 17.g3 ½–½. Kuipers,Stefan – Ter Schegget,Bram, Hengelo op U12, 2002.

6.Be2 Nf6 7.d4 Qe7 (7...e4 8.Nfd2 0–0 9.0–0 c5 10.Nc3 cd4 11.ed4+=; 7...Qb6 8.a3 e4 9.Nfd2 0–0 10.Nc3 d5 11.0–0+=) 8.0–0 Nbd7 9.Nc3 0–0 10.a3 Re8 11.d5+=.

5.Nf3 Nc6

6.a3 Be6 7.d3 d5 (7...Nf6 8.Be2=) 8.cd5 (8.b5 Nce7+/–) 8...Bd5 9.Nc3 Nf6 10.Nd5 Nd5 (10...Qd5 11.d4 ed4 12.b5+= (12.ed4?! 0–0–0+=)) 11.Be2 (11.b5 Nce7+/–) 11...f6 12.0–0 Qd7 13.Qb3 Nce7 14.Rfc1 c6 15.Rc2 0–0–0 (better is 15...a5!?+=) 16.b5+– a6 (16...Qc7+–) 17.ba6 ba6 18.Rb1 Qb7 19.Qc4 f5 (better is 19...Kd7+–) 20.Rcc1 Ne3 (20...Qc7 21.Qa6 Kd7 22.Be5 Be5+–) 21.fe3 Qa7 22.Kf2 (22.Be5!? Be5 23.Qe6 Qd7 24.Qe5 Qd6+–) 22...f4 23.d4 (better is 23.Qe6 Qd7 24.Qd7 Kd7 25.ef4 Rhf8 26.Ne5 Kc7+–) 23...fe3 24.Ke3 ed4 25.Kd2 (25.Ke4 Rhe8 26.Qe6 (26.Bd4?? Nf5 27.Kd3 Nd4–+; 26.Nd4?! Rd4 27.Bd4 Nf5 28.Kd3 Qd4 29.Qd4 Nd4+=; 26.Qa6?! Qa6 27.Ba6 Kc7+–) 26...Rd7 27.Qf7+=) 25...Nf5?? (better is 25...Bh6 26.Ke1 Bc1 27.Rc1 Rhf8 28.Bd4 Qb7+–) 26.Qc6 Qc7 (26...Kb8 27.Bd4 Qb6 28.Rb6 Ka7 29.Qb7) 27.Qc7 1–0. Fournier,Frederic – markoscle, Active, 2007.

6.a3 f5 7.Qc2 Nf6 8.Be2 Be6 9.d4 e4 10.Nfd2 Ne7 11.d5 Bd7 12.Nb3 c5 13.Kf1 (13.bc5 dc5 14.Be5 b6+=) 13...Ba4 (13...cb4 14.ab4 0–0 15.Kg1=) 14.Nc3+= Bb3 15.Qb3 b6 16.Nb5 0–0 17.f3 a6 18.Nc3 ef3 19.gf3 Nd7 20.f4 Nf6 21.Kf2 Kh8 22.h4 Ng4 23.Bg4 fg4 24.Ne4 Nf5 25.Bg7 Ng7 26.Qc3 Qe7 27.Ng5 (27.Ng3!? Kg8 28.h5=) 27...Kg8–/+ 28.Rag1 h6 29.Ne6 (29.Rg4!? hg5 30.Rg5+=) 29...Ne6–/+ 30.de6 Qe6 31.Qd3 h5 32.Rd1 Rad8 33.Qd5 Rf6 34.Qe6 Re6 35.Rd5 Kf7 36.bc5 bc5 37.Rb1 Rde8 (37...Re4 38.Rb7 Ke6 39.Rg7–/+) 38.Rb7 Kf6 (38...R8e7 39.Re7 Ke7 40.Ke2–/+) 39.Rb3 g3 (39...a5 40.Rdd3+=) 40.Kf3= g2 41.Rd1 Kf5 42.Rg1 Re4 43.Rc3 Rb8 44.Rg2 Rb1 1–0. GuestTFBW – GuestXFCP, freechess.org, 2017.

6.b5 Nce7

7.d4 ed4 8.Nd4 (8.Bd3 Nf6 9.Nd4 0–0 10.0–0 Bg4 11.Qd2 a6 12.Nc3 ab5+=) 8...Nf6 9.Be2 0–0 (9...Qd7 10.0–0 0–0 11.Nc3 Re8 12.Qd3 Ng4+=) 10.0–0 Nd7 (10...a6 11.a4 (11.Bf3= Re8 12.Qa4 Nd7=) 11...Nf5 12.Nd2 Re8+=) 11.Nc3+= Nc5 12.Nb3 (12.Bf3 Be6+=) 12...Nb3 (12...Ne4+=) 13.ab3 Nf5 (13...Re8 14.Qd2+=) 14.Ra2 Re8 15.Qa1 a6 (15...Be5 16.b6 cb6 17.Nd5+=) 16.Nd5+/– Bb2 17.Qb2 Re6 18.Bg4 c6 19.Bf5 gf5 20.Nf4 Rh6 21.Rd1 Rb8 22.Qa3 (22.ba6 ba6 23.Qa3 Qe7+/–) 22...ab5 23.cb5 d5 24.b6! Rd6 (24...Qb6 25.Qa7) 25.Qc5 Be6 (25...Rh6 26.Rda1+/–) 26.Rd4 (26.b4 Qf8+/–) 26...Rd7 27.h3 (27.b4 Qe7+/–) 27...Re7 (27...Qe7!? 28.b4 Rbd8+/–) 28.Ra7 Bd7 (28...Qf8 29.b4+/–) 29.Rda4 (29.b4 Re4+–) 29...Re4 30.Qd6 c5 31.Re4 de4 32.Nh5 Be6 33.Qe5 Qf8?? (better is 33...Kf8+–) 34.Nf6 Kg7 35.Nd7 f6 (35...Kg6 36.Qf6 Kh5 37.Nf8 Rf8 38.Rb7+–) 36.Qg3 (36.Qg3 Kh8 37.Nf8 Rf8 38.Qd6+–) 1–0. Pandurevic,Miro (2255) – Ivekovic,Benjamin (2095), 9th Open, Bosnjaci CRO (5), 2003.

7.d4 e4 8.Nfd2 f5 9.Nc3 Nf6 10.Be2 0–0 11.0–0 Kh8 12.c5 d5 13.a4 a6 14.Qb3 a5 15.b6 c6 16.Qc2 Neg8 17.Nb3 Nh6 18.h3 Rg8 19.Qd2 g5 20.Nd1 g4 21.hg4 Nfg4 22.Bg4 (22.Na5?? Qh4 23.Bg4 Ng4–+) 22...Ng4 23.g3 (23.Na5 Qh4 24.Re1 Nh2–+) 23...Qe8 24.Kg2 (24.Na5 Qh5 25.f3 ef3–+) 24...Be6 25.Rh1 Bf7 26.Na5 Rb8 27.Nb3 Nf6 28.a5 Bh5 29.a6?? (better is 29.Rh4+=) 29...Bf3–/+ 30.Kg1 Bh1 31.Kh1 Qh5 32.Kg1 Ng4 (better is 32...ba6 33.Ra6 Ng4–/+) 33.Kf1? Qh1 34.Ke2–/+ Qf3 35.Ke1 Nh2 36.Qe2 Qe2?? 37.Ke2+/– Nf3?? 38.a7+– Ra8 39.Na5 Bf6 40.Nb7 h5 41.Nd6 Bd8 42.b7 Bc7 43.ba8Q Ra8 44.Nf5 Kg8 45.Ne7 Kf7 46.Nc6 h4 47.gh4 Nh4 48.Nc3 Nf3 49.Nd5 (49.Nd5 Bh2 50.Nb6+–) 1–0. ognos – hellrose82, internet, 2013.

7.d4 e4 8.Nfd2 f5 9.Be2 Nf6 10.0–0 0–0 11.Qb3 a6 12.ba6 ba6 =.

7.Be2 Bf5 8.0–0 Nf6 9.d4 e4 10.Nfd2 Qd7 11.Nc3 a6 12.ba6 Ra6 +=.

7.Be2 Nf6 8.Nc3 b6 9.0–0 Bb7 10.d4 ed4 11.Nd4 0–0 12.a4 Kh8 13.a5 Neg8? (13...ba5 14.Nb3+/–) 14.ab6 (better is 14.a6!? Be4 15.f3+–) 14...ab6+/– 15.Ra8 Qa8 16.Qa4 (16.f3!?+/–) 16...Bg2= 17.Ra1 Qa4 18.Ra4 Bb7 19.Nc6 (19.Ra7 Rb8=) 19...h6 20.Bf3 Nh5?? (20...Ra8 21.Ra8 Ba8 22.Bg2+=) 21.Bh5 (better is 21.Ra7 Bc6 22.Bc6+– (22.bc6?! Rc8=)) 21...gh5= 22.Ra7 1–0. brother – biurokratass, internet, 2013.

7.Be2 Nf6 8.d4 ed4 9.Nd4 0–0 10.0–0 Re8 11.Nc3 a6 12.a4 ab5 =.

5.Nf3 Nd7

6.d4 Qe7 7.Be2 Nh6 8.0–0 Nf5 (8...0–0 9.Nc3+=) 9.Nc3+= Nh4 (9...c6 10.de5 Ne5 11.e4+=) 10.Nh4 Qh4 11.c5 h5? (better is 11...dc5 12.g3 Qd8 13.dc5 0–0+=) 12.Nb5+– Rb8 (12...0–0 13.Nc7 Rb8 14.cd6 ed4 15.g3+– (15.Bd4?! Bd4 16.ed4 Qf4+–; worse is 15.ed4 Qf4+–)) 13.Nc7 Kf8 14.cd6 Qf6 (14...ed4 15.Rb1 Nb6+–) 15.de5 Ne5 16.f4 Qd8 (16...Nf3 17.Bf3 Qb2+–) 17.fe5 Bh3 18.Rf7! Kf7 19.Qd5 Kf8 20.Rf1 Bf6 21.Rf6 Kg7 (21...Qf6 22.ef6 b5 23.gh3 Rh7 24.d7 Rd8 25.Ne6 Kg8 26.Nd8 Kh8 27.f7 Rg7 28.f8Q Kh7 29.Qg7) 22.Qf7 Kh6 23.Rg6 1–0. Janek – tobokin, internet, 2017.

6.d4 Ngf6 7.de5 Ng4 8.Be2 =.

6.Be2 a5 7.Qa4 =.

6.Be2 a5 7.b5 =.

6.Be2 b6 7.Nc3 (7.0–0 a5+=) 7...Bb7 (7...Ngf6 8.0–0+=) 8.0–0 h6 (8...a5 9.b5+=) 9.d4 ed4 (9...a5 10.a3+=) 10.Nd4 (10.ed4 Ngf6 11.Re1+/–) 10...Qg5? (better is 10...Ngf6!?+=) 11.Bf3 (11.Nd5 Bd5 12.cd5 Ngf6+–) 11...Bf3+/– 12.Qf3 Rc8 (12...Rb8 13.Ndb5 Ne5 14.Nc7 Kd7 15.Qd1+–) 13.Qb7 Ne7 14.Nd5 0–0? (14...Bd4 15.Bd4 Rf8 16.Nc7 Kd8+–) 15.f4 (15.Nc7?! Nf5+–) 15...Qh5 (15...Qh4 16.Nf3 Rb8+–) 16.Ne7 Kh8 17.Nc8 Bd4 (17...Nf6 18.Nf3 Ng4 19.Bg7 Kg7 20.Rfe1+–) 18.Bd4 Kg8 19.Ne7 Kh7 20.Qc7 Qe2 21.Qd7 Qc4 22.Ng6 Qb4 23.Nf8 Kg8 24.Qe8 1–0. jdzg – hzta, internet, 2009.

6.Be2 Ne7 7.0–0 0–0 8.Qc2 c5 A) 9.b5 a6 10.Nc3 ab5 11.Nb5 Nf6 12.d3 Nc6 13.Rfb1=; B) 9.bc5 Nc5 10.d4 Bf5 11.Qd2 Ne4 12.Qd1 Nc6 13.Nc3=; C) 9.a3 a5 (9...Qb6 10.Nc3 cb4 11.ab4 Nf6 12.d4 ed4 13.Nd4+=; 9...Nc6 10.b5 Na5 11.Nc3 a6 12.Rfb1 f5 13.ba6+=) 10.Nc3 ab4 11.ab4 Ra1 12.Ra1 cb4 13.Nb5=.

6.Be2 Ne7 7.0–0 0–0 8.Qc2 f5 9.d4 e4 (9...a5 10.b5 e4 11.Ng5 Nf6 12.Nc3 h6 13.Nh3+=) 10.Ng5 (10.Nfd2 d5 11.Nc3 Nf6 12.b5 a6 13.a4+=) 10...Nf6 (10...Nb6 11.Nh3 Qd7 12.Nc3 c6 13.Qb3+/–) 11.d5 (11.a3 h6 12.Nh3 g5 13.Nc3=) 11...h6 12.Nh3 g5 (12...a5 13.b5=) 13.Kh1 (13.Nd2=) 13...Ng6 14.Nd2 Qe7 15.Nb3 Bd7 16.Nd4 Ne5 17.Ng1 a6 18.a4 a5 19.b5 Rf7 20.Rac1 Raf8 21.Qb3 b6 (21...f4 22.ef4 gf4 23.b6=) 22.Nc6 (22.c5 bc5 23.Ne6 Rb8+=) 22...Nc6= 23.bc6 Bc8 24.Bd4 f4 25.ef4 gf4 26.f3 (26.Rfe1 Nh7 27.Bg7 Rg7+=) 26...e3+= 27.Bd3 Nh5 28.Ne2 Bd4 29.Nd4 Ng3 30.Kg1 Nf1 31.Bf1 Rg7 32.Kh1 Kh8 33.Qb2 Qe5 34.Qc3 h5 35.Rc2 h4 36.Nb5 (36.h3 Re8–+) 36...h3! 37.Qe5 (37.gh3 Rfg8) 37...de5 38.Nc3 Rfg8 39.Rb2 e4! 40.Ne4 (40.Ne4 hg2; 40.fe4 Rd8) 40...hg2 41.Bg2 Bh3 (41...Bh3 42.Ng3 Bg2 (42...fg3?! 43.Bh3 Rh7 44.Bf5–+) 43.Kg2 fg3–+) 0–1. Gerold,G – Scheffer,G, corr ICCF EU/M/Gr99 (year?).

6.Be2 Ne7 7.0–0 0–0 8.Nc3 Nb6 A) 9.d4 ed4 (9...Bg4 10.Qb3 ed4 11.Nd4 Be2 12.Nde2 Nc6 13.Rad1=) 10.Nd4 a5 11.ba5 Ra5 12.Nb3 Ra8 13.Qd2=; B) 9.c5 Nbd5 10.Nd5 Nd5 11.Qb3 Be6 12.Bc4 c6 13.e4=.

6.Be2 Ne7 7.0–0 0–0 8.d4 A) 8...a5 A1) 9.ba5 Re8 (9...ed4; 9...Ra5) 10.Bc3 ed4 11.Nd4 Ne5 12.Na3 Nf5 13.Nab5+=; A2) 9.b5 ed4 10.Bd4 Ne5 11.Nc3 Nf5 12.Be5 de5 13.Qd8+=; B) 8...Re8 9.Nc3 Nf5 10.a3 ed4 11.Nd4 Nd4 12.ed4 c5 13.dc5=; C) 8...ed4 9.Bd4 Ne5 (9...Nf6 10.a3 a5 11.Bc3 Qe8 12.b5 Nf5 13.Bd3+=) 10.Bc3 Be6 11.Qc2 a5 12.b5 c6 13.Rd1=.

6.Be2 Nh6 7.a4 0–0= 8.0–0 (8.Nc3=) 8...f5 (8...Nf5!?+=) 9.d4 (9.Nc3 a5 10.b5 Nf7+=) 9...e4 10.Nfd2 Nf7 (10...a5 11.ba5 Ra5 12.Nc3+=) 11.Nc3 Nf6 12.b5 (12.a5 a6+=) 12...g5 (12...Bd7 13.Nb3+=) 13.c5 (13.Qb3 Bd7+=) 13...d5 (13...dc5 14.Nb3+=) 14.Ba3 (14.a5 Be6+/–) 14...Re8+= 15.Bh5 (better is 15.Bb4!?+=) 15...Nh5= 16.Qh5 c6 (16...f4 17.h4=) 17.a5 (17.Rab1 Bd7=) 17...a6 (17...Qa5 18.Bb2 Qd8 19.Ra3+=) 18.b6 (18.bc6 bc6 19.Rfb1 g4–/+) 18...f4+= 19.Ne2? (19.h3 Bf5 20.h4 Re6–+) 19...Qf6 (better is 19...Re6 20.Nc3 Rh6–+) 20.Bb2 (20.h4 Qg6 21.Qg6 hg6 22.hg5 fe3 23.fe3 Ng5–/+) 20...Bf5 21.ef4 gf4 22.Nf4 Bh6 23.g3 Kh8 24.Bc3?? (better is 24.Kh1 Rg8 25.Qe2–/+) 24...Bf4–+ 25.gf4 (25.Kh1 Rg8 26.Qd1–+ (26.gf4?? Bg4 27.Qe5 Ne5 28.de5 Qf4 29.e6 Rg7–+)) 25...Rg8 (25...Rg8 26.Kh1 Bg4–+) 0–1. Cano Sevilla,Ivan (1885) – Movsziszian,Karen (2515), 25th Vallfogona Rapid, 2017.

6.Be2 Nh6 7.d4 0–0 8.Nc3 f5 (8...ed4 9.Nd4 c5 10.Nc2=) 9.Qb3 (9.de5 de5 10.Qd5 Nf7=) 9...Nf7 10.de5 de5 11.c5 c6 12.Rd1 Kh8 13.h4 h6 (13...e4!? 14.Nd4 Nfe5+=) ½–½. Pietrzak,Janusz – Ullrich,J, corr EU–M–794, 1990.

6.d4 e4

7.Nfd2 f5 8.Nc3 Ne7 9.Be2+= 0–0 10.0–0 c6 (10...c5 11.Nb5+=) 11.Qb3 (11.f3 ef3 12.Bf3 f4 13.ef4 Bd4 14.Kh1 Bg7=) 11...a6 (11...c5 12.Nb5 Nf6 13.bc5 dc5 14.Rad1+=) 12.d5 (12.f3 ef3 13.Bf3 f4+=) 12...c5 (12...Nf6 13.dc6 bc6 14.f3+=) 13.a3 (13.f3 ef3 14.Bf3 Ne5+=) 13...b6 (13...Ne5 14.bc5 dc5 15.Rfd1+=) 14.Bd1 (14.f3 ef3 15.Bf3 Ne5+=) 14...Rb8 (14...Ne5 15.Be2=) 15.Bc2 (15.f3 Ne5+=) 15...Rf7 (15...Ne5 16.bc5 dc5 17.f3=) 16.Ne2 (16.f3 ef3 17.Rf3 Ne5=) 16...Bb2 17.Qb2 Qf8 (17...b5 18.Nf4+=) 18.Nf4 Ne5 (18...Qg7 19.Qg7 Kg7 20.Ne6 Kg8 21.f3+/–) 19.bc5 Qg7 20.Rab1 dc5 21.Ba4 (21.Rfd1 g5 22.Nh5 Qh8+/–) 21...Qf6 (21...Bd7 22.Bd7 Nd7 23.Qg7 Kg7 24.Ne6 Kf6 25.f3 ef3 26.Rf3+/–) 22.Rfd1 Qd6 23.Qb3 (23.Be8 Rf8 24.Ba4 Rf7=) 23...Kh8 (23...g5 24.Nh3+=) 24.f3 (24.Be8 Rf8 25.Ba4 Rf7=) 24...ef3+= 25.gf3 (25.Nf3 Nf3 26.gf3 h6+=) 25...g5= 26.Ng2 (26.Nd3 Nd3 27.Qd3 h6+=) 26...g4 (26...b5 27.f4 gf4 28.ef4= (28.Nf4 Bd7+=; worse is 28.cb5 fe3 29.Ne3 Rg7 30.Kh1 ab5–/+)) 27.f4+= Nf3 28.Nf3 gf3 29.Nh4 Qh6 (29...Rg7 30.Kf2+=) 30.Nf3+/– Bb7? (better is 30...Rg7!? 31.Kh1 Qd6+/–) 31.Ng5 (31.Qb6 Qh5 32.Kf2 Rg7+–) 31...Qg6 (better is 31...Rf6+–) 32.Qb6 Rf6 (32...Rg7+–) 33.Qc7 Rg8 (33...Rff8 34.Qe7 h6 35.Rb7 hg5 36.Qe5 Kg8 37.Rb8 gf4 38.Kh1+–) 34.Rb7 h6 35.Qe7 hg5 36.Kh1 (36.fg5 Qg5 37.Kf1 Qg1 38.Ke2 Qh2 39.Kd3 Rh6+–) 36...gf4 Threatening mate: Qg2. 37.Rb2 f3 (37...fe3 38.Qe3 Qg4 39.Rg1+–) 38.Rf2 f4 39.Bc2 Qh6 40.Rf3 Rg4 (40...Qh4 41.Rh3! Qh3 42.Qf6 Rg7 43.Be4+–) 41.Rb1 (41.Rb1 Rg1 42.Rg1+–) 1–0. Mack,Guenter – Knopp,Andreas, CiF, 1992.

7.Nfd2 f5 8.Nc3 Ne7 9.Be2 0–0 10.0–0 Kh8 11.Re1 (11.Nb3 Nb6+=) 11...a6 (11...Nf6 12.Qb3+=) 12.a4 (12.h3 d5+=) 12...Nf6 13.Rc1 (13.d5 c6+/–) 13...Be6 14.Rc2 (14.Qb3 d5+=) 14...Bg8 (14...d5 15.Ba3=) 15.Ba3+= Bf7 16.Qa1 (16.Nb3 Nc6+=) 16...Qd7 17.Nb3 g5 (17...Kg8 18.h3=) 18.Qc1 Rfe8 (18...Ng6 19.Na5+=) 19.Nd2 (19.Qd2 Ng6=) 19...g4 (19...Kg8 20.Nb3=) 20.Nb3 (20.Qb2 Ng6 21.g3 Rab8+=) 20...Bh6 (20...h5 21.Kh1=) 21.Qa1 (21.Na5 f4 22.ef4 Nf5=) 21...Bg5 (21...Nc6 22.Qc1=) 22.Nd2 (22.d5 Ng6=) 22...Ng6 (22...Kg7 23.Qb2=) 23.g3 h5 (23...Ne7 24.Qb2=) 24.c5 d5 25.b5 ab5 26.ab5 Reb8 (26...h4 27.Ra2=) 27.Ra2 h4 28.Qb2 Nh5 (28...h3 29.Rea1=) 29.Bd1 (29.b6 c6 30.Nf1 h3=) 29...Nf8 (29...Kg7 30.b6=) 30.Bc2 (30.Bb3 h3=) 30...Ne6= 31.Qa1 (31.Bb3!? c6 32.Bb4=) 31...Nf6–/+ 32.Qc1 (32.Bb4 Ra2 33.Qa2 Nd4 34.ed4 Bd2–/+) 32...Ra7 (32...h3 33.Ba4+=) 33.Re2 (33.Ba4 h3+=) 33...Rba8 (33...h3 34.Qb1–/+) 34.Qb2 h3 35.Qb4 Qd8 (35...Kg7 36.Ba4–/+) 36.Re1+= Kg8 (36...c6 37.Rea1=) 37.Rea1 Bh6 (37...b6 38.cb6 cb6 39.Bb2 Ra2 40.Ra2+=) 38.Kf1 (38.Bb2 Ra2 39.Ra2 Ra2 40.Na2 Qd7+=) 38...b6 (38...Qd7 39.Ke2+=) 39.c6 Ra5 (39...Kh7 40.Qe7 Qe7 41.Be7 Ra2 42.Ra2 Ra2 43.Na2=) 40.Kg1 (40.Ke1=) 40...Bh5 (better is 40...Bf8!? 41.Qb2 R8a7+=) 41.Qe7+= Qe7 42.Be7 Ra2 43.Ra2 Ra2 44.Na2 Ne8 45.Nb1 Kf7 46.Bh4 Ng5 47.Bd1 (47.Bg5!? Bg5 48.Nb4+=) 47...Ke7 48.Nbc3 Bf7 49.Nb4 Kd6 50.Kf1 Be6 51.Ke1 Nf6 52.Ke2 Nfh7 53.Na6 Nf6 (53...Nf7 54.Na4 Bc8 55.Be7 Ke7 56.Nc7+/–) 54.Na4 Ne8 (54...Bf7 55.Bb3=) 55.Kf1 (55.N4c5 Bc8 (55...bc5?? 56.dc5 Ke5 57.b6+–) 56.Nb7 Ke7=) 55...Bg8 (55...Bc8 56.Nc3=) 56.N4c5 Be6 (56...Ke7 57.Bb3=) 57.Bb3 Bg8 (57...Bf7 58.Ke2=) 58.Ke2 Bf7 (58...bc5 59.dc5 Ke5 60.b6 cb6 61.cb6+–) 59.Bd1 Bg8 (59...bc5?? 60.dc5 Ke7 61.b6+–) 60.Nd7 Be6 (60...Nf3 61.Nf6 Nf6 62.Bf6+=) 61.Ne5 Nh7 ½–½. Spike 1?4 Leiden – MinkoChess 1?2 32_bit (2780), CCRL, 2011.

7.Nfd2 f5 8.Nc3 Ngf6 9.Be2=.

7.Nfd2 f5 8.Be2 c5+=.

7.Nfd2 Ngf6 8.Nc3 Qe7 9.Qc2 +/–.

6.d4 Ne7

7.Nc3 0–0 8.Qb3 ed4 9.Nd4 a5 10.b5 Nc5 11.Qc2 Nf5 12.Nb3 Nb3 13.Qb3 b6 14.Bd3 Rb8 15.0–0–0 Be6 16.Ne4 Bb2 17.Qb2 f6 18.g4 Ng7 19.Rhg1 Qe7 20.g5 fg5 21.Ng5 (worse is 21.Rg5 Bf5 22.Rf5 Nf5–/+ (worse is 22...gf5 23.Nc3+=)) 21...Qf6 22.Ne6?? (better is 22.Qf6 Rf6 23.f3+=) 22...Qb2–/+ (22...Qe6?! 23.Rd2=) 23.Kb2 Rf2 24.Kc3 Ne6 25.Rd2 Rd2 26.Kd2 Nc5 27.h4 Nd3 28.Kd3 Rf8 29.h5 Kg7 30.hg6 hg6 31.Rg2 Rf5 32.Ke4 Kf6 33.Rh2 Re5 34.Kd3 Rh5 35.Rf2 Ke6 36.Rf8 Rh7 37.Rg8 Kf7 38.Rc8 Kf6 39.Ke4 Rg7 40.Rf8 Rf7 41.Rg8 Kg5 42.Kd5 Rf5 43.Kd4 Rc5 44.Rg7 Kf6 45.Rg8 g5 46.a3 Kf5 47.Rg7 Kg4 48.a4 Kg3 49.e4 g4 50.Kd3 Kh3 51.Kd4 g3 52.Rh7 Kg4 53.Ke3 g2 54.Kf2 g1Q 55.Kg1 Rc4 56.Kf2 Kf4 57.Re7 (57.Rh4 Ke5–+) 57...Rc2 (57...Ra4!? 58.Rc7 Rb4 59.Rd7 Rb5 60.Rd6–+) 58.Ke1 Ke3 Do you see the mate threat? 59.Kd1 Rc5 60.Re8 Kd3 61.Re7?! (61.Rh8–+) 61...Kc3 62.Rg7 Kb4 63.Rg4 Rc4 64.Kd2 Ka4 65.Kd3 Kb5 66.Rg1 Rc5 67.Rf1 0–1. Chirpii,Alexandru (1650) – Popa,Marian (1795), Centrocoop June op–B, 1998.

7.Nc3 0–0 8.Be2 a5 A) 9.b5 A1) 9...Re8 10.a3 (10.Rb1 ed4 11.Nd4 Nf6 12.0–0 Nf5 13.Nd5 Nd5 14.cd5 Nh4 15.g3+=; 10.0–0 ed4 11.Nd4 Nc5 12.Bf3 a4 13.a3 Nf5 14.Nd5 Nb3 15.Ra2=; 10.Rc1 ed4 11.Nd4 Ne5 12.0–0 Nf5 13.Qd2 Nd4 14.ed4 Ng4 15.Rce1+=) 10...ed4 11.Nd4 Ne5 12.0–0 c5 13.Nf3 Be6 14.Ne5 Be5 15.Qc2+=; A2) 9...Nf5 10.Rb1 (10.0–0 Re8 11.a3 ed4 12.ed4 c5 13.dc5 dc5 14.Re1 Nb6 15.Qc2=; 10.a3 Re8 11.0–0 ed4 12.ed4 c5 13.dc5 dc5 14.Ra2 Nb6 15.Nd5=; 10.Rc1 ed4 11.ed4 c5 12.bc6 bc6 13.0–0 Rb8 14.Rb1 Ba6 15.Re1=) 10...Re8 11.0–0 ed4 12.ed4 Nb6 13.Re1 Nh4 14.c5 Nf3 15.Bf3=; B) 9.a3 B1) 9...Re8 10.b5 (10.0–0 ed4 11.Nd4 Ne5 12.Qd2 Qd7 13.Rfd1 Qd8 14.c5 ab4 15.ab4+=; 10.d5 Nf6 11.e4 Nh5 12.0–0 Nf4 13.Re1 f5 14.Bd3 Rf8 15.ef5=) 10...ed4 11.Nd4 Ne5 12.0–0 c5 13.Nf3 Be6 14.Ne5 Be5 15.Qc2+=; B2) 9...ab4 10.ab4 Ra1 11.Ba1 ed4 12.Nd4 Ne5 13.f4 N5c6 14.Nc6 Nc6 15.Nd5+=; B3) 9...Nf5 10.Qd2 (10.b5 ed4 11.ed4 Nb6 12.Qd3 Re8 13.0–0 Nh4 14.Nh4 Qh4 15.f4+=; 10.0–0 Re8 11.de5 Ne5 12.Qc2 Nf3 13.Bf3 Nh4 14.Be4 Qg5 15.g3=) 10...ab4 11.ab4 Ra1 12.Ba1 ed4 13.ed4 Nb6 14.0–0 Re8 15.d5=.

7.Nc3 0–0 8.Be2 ed4 9.Nd4 (9.ed4 A) 9...d5 10.c5 b6 11.0–0 a5 12.cb6 cb6 13.Ba3 Nf6 14.ba5 ba5 15.Rc1+=; B) 9...c5 10.bc5 (10.a3 Nc6 11.dc5 dc5 12.b5 Nd4 13.Nd4 Bd4 14.Qb3 Qh4 15.0–0=) 10...dc5 11.d5 Nb6 12.0–0 Re8 13.Re1 Bg4 14.Nd2 Be2 15.Qe2+=; C) 9...Re8 10.0–0 Nb6 11.Qb3 Bg4 12.Nd2 Be2 13.Ne2 Bh6 14.Nf3 d5 15.c5=; D) 9...Nb6 10.0–0 Bg4 11.Nd2 Bf5 12.d5 c6 13.dc6 Nc6 14.a3 Nd4 15.Rc1+=) 9...Ne5 (9...c5 10.Nc2= (10.bc5 dc5 11.Ndb5 Nf5 12.e4 Nd4 13.Nd5 Nf3 14.Bf3 Bb2 15.Rb1=) 10...Nb6 11.Rb1 Bf5 12.Nb5 Nc6 13.Bg7 Kg7 14.Rc1 Nc8 15.a3=) 10.0–0 (10.a3 a5 11.0–0 Be6 12.Ne6 fe6 13.f4 ab4 14.ab4 Ra1 15.Qa1+=) 10...N5c6 (10...c5 11.bc5 dc5 12.Ndb5 Be6 13.Qb3 N7c6 14.Rad1 Qh4 15.Nc7+=) 11.Nc6 Nc6 12.Qb3 Ne5 (12...a5 13.b5 Ne5 14.b6 cb6 15.Nd5+=) 13.h3 (13.Rad1 Re8 (13...a5+= 14.b5 Be6 15.b6+=) 14.Nd5 c6 15.Nf4=) 13...Be6 (13...Re8 14.Rfd1 a5 15.a3=) 14.f4 (14.Rfd1 Re8 15.Nd5=) 14...Nd7 15.Rad1 (15.Nd5 Bb2 16.Qb2 Re8=; 15.e4+=) 15...a5 16.a3 ab4 17.ab4 Nb6 18.e4 Qd7 (18...Qe7 19.Rde1=) 19.Rf3 (19.Rfe1 Rfd8=) 19...Qc6 (19...Qe7 20.Bd3=) 20.Nd5+= Bd5 21.Bg7 (21.ed5 Qa4 22.c5 Qb3 23.Rb3 Nd7+=) 21...Kg7 (better is 21...Bc4!? 22.Bc4 Kg7 23.Qc3 f6+=) 22.cd5 Qd7 23.Qc3 Kg8 24.f5 Rfe8 25.Qe3 (25.fg6 hg6 26.Bd3 Na4+/–) 25...Qe7 (25...Re5 26.fg6 hg6 27.Qd4+=) 26.Bb5+= Nd5 27.Qh6 (better is 27.Qd2 c6 28.Bc6 bc6 29.ed5+=) 27...c6? (better is 27...Nb4!? 28.Be8 Re8+=) 28.Bc4+– (28.ed5?! cb5 29.Rdf1 Ra2=) 28...Qe4?? (better is 28...Ra4 29.ed5 Rb4+–) 29.Bd5 (29.Bd5 Qd5 30.Rd5 Re1 31.Kh2+–) 1–0. Pandurevic,Miro (2260) – Vanderhallen,Nicolas, 24th Open, Bled SLO, 2003.

7.Be2 a5 8.b5 0–0 +=.

7.de5 de5 8.a3 0–0! 9.Be2 f6 10.0–0! h6 11.Qb3 Kh7 12.Nc3 c6 13.Rad1 Qc7 14.Ne4 f5 15.Nd6 g5 16.Rd2 g4 17.Nh4 Nb6 18.Nc8 Rac8 19.Rfd1 Bf6 20.g3 Bh4 21.gh4 Ng6 22.c5 Nd5 23.e4 fe4 24.Bg4 Ngf4 25.Bc8 Qg7 26.Qg3 Qf7 27.Be5 Rg8 28.Bf4 Rg3 29.Bg3 Qg8 30.Bb7 Qe6 31.Kf1 e3 32.Re2 Qh3 33.Ke1 Nc3 34.Rd7 Qd7 35.Re3 Nd5 36.Rf3 Qb7 37.Kd2 Qd7 38.Bd6 Qg4 39.Rf7 Kg6 40.Rf8 Qd4 41.Ke2 Qb2 42.Kf3 Qa3 43.Kg2 Qb4 44.Rg8 Kf7 45.Rf8 Ke6 46.h3 Qe4 47.f3 Qg6 48.Kf2 Qc2 49.Kg3 Qd1 50.h5 Qg1 51.Kh4 1–0. vihavald (1670) – bispodorei, internet, 2013.

5.Nf3 Be6

6.b5 Nd7 7.d4 Ne7 (7...Ngf6 8.Be2=) 8.Bd3 0–0 (8...a6 9.ba6 Ra6 10.0–0=) 9.0–0 c6 (9...a6 10.ba6 Ra6 11.Nc3=) 10.a4 (10.Na3 Qb6=) 10...c5 (10...ed4 11.Nd4 Ne5 12.Qc2=) 11.d5+= Bg4 12.Nc3 (12.Nbd2 f5 13.Qb3 h6=) 12...f5 13.Be2 Nb6 (13...Qa5 14.Ng5 Qb4 A) worse is 15.Bg4 Qb2 16.Nce4 Bh6+= (worse is 16...fg4 17.Qd3 h6 18.Rfb1 Qa1 19.Ra1 hg5 20.Nd6+/–; 16...fe4? 17.Bd7 Kh8 18.Be6+–); B) 15.Qc2 Be2 16.Ne2+= (worse is 16.Qe2 Nb6+=)) 14.Nd2+= Be2 15.Qe2 e4 (15...a5 16.Nf3+=) 16.f3 (16.a5 Nd7+/–) 16...Nd7 (16...ef3 17.Nf3 Nd7 18.a5+=) 17.fe4+/– Qa5 18.Rac1 (18.Nd1 Rae8+/–) 18...fe4 (18...Nb6 19.Qd3+=) 19.Nde4 (19.Rf8 Rf8 20.Nde4 Be5+/–) 19...Nf5 20.Ng5 (20.Nd1 Bb2 21.Nb2 Qd8+/–) 20...Ne3! 21.Qe3?? (21.Rf8 Nf8 22.Nce4+– (22.Qe3 Bd4 23.Qd4 cd4–+)) 21...Bd4–+ 22.Qd4 cd4 23.Nce4 Rf1 24.Rf1 (24.Kf1 d3 (24...Qa4?! 25.Bd4 Qa3 26.Rc3 Rf8 27.Ke1 Qa1 28.Kd2–+) 25.Bc3 Qa4–+) 24...Rf8 (24...Qa4 25.Nd6 Qb4 26.Bd4 Qd6 27.Nf7–+) 25.Nf3 (25.Rc1 Nc5 (25...Qa4?! 26.Ne6–+) 26.Nc5 Qd2–+ (worse is 26...dc5 27.Ne6 Rf6 28.Kh1–+)) 25...Ne5 (better is 25...Qb4 26.Bd4 Qc4 27.Rd1–+) 26.Bd4 Nf3 (26...Qa4 27.Nd6 Nc4 28.Ra1–+) 27.gf3 Qa4 28.Ng5?? (28.Nd6 Rd8 29.Be5–+) 28...Qc4 (28...Qc4 29.Ba7 Qb5–+) 0–1. GuestHTNP – guestjoan, freechess.org, 2016.

6.b5 Nf6 7.Be2=.

6.d4 Ne7 7.de5 de5 8.Qd8 Kd8 9.Ne5 Rg8 10.Nd2 c6 (10...Nbc6!? 11.Nc6 Nc6 12.Bg7 Rg7+=) 11.0–0–0+– Kc7 12.Nb3 Nd7 13.Nd7 Bb2 14.Kb2 Bd7 15.Be2 Rad8 16.h3 Be6 17.Nd4 Bd7 18.a4 Nf5 19.a5 Nd4 20.ed4 Rge8 21.Bf3 (21.Rhe1 Re6+/–) 21...Be6 (21...Bf5!?+/–) 22.Kc3 f6 23.Rd2 (23.Rhe1 Bf5+/–) 23...Bf7 (23...Bf5 24.Bd1+/–) 24.Rb1 Rd7 (better is 24...g5!?+/–) 25.b5+– cb5 26.Rb5 Kb8? (26...Kc8 27.Rdb2 Ree7 28.c5+–) 27.a6 (27.Bc6 Rc7 28.Be8 Be8+–) 27...b6? (27...Rc8 28.c5 b6+–) 28.Bc6 Rc7 29.Be8 Bc4 (29...Be8 30.Rb3+–) 30.Kb4 (30.Kb4 Kc8 31.d5 Bb5 32.Bb5+–) 1–0. Feofanov,Alexander – Petrenko,Andrey, 2008.

6.g3 Nc6 7.a3 Qd7 8.d3 Bh3 9.Kd2 Bf1 10.Qf1 0–0–0 11.Nc3 Nge7 12.h4 f5 13.Ng5 Rdf8 14.Qg2 h6 15.Nf3 e4! 16.de4 fe4 17.Nd4 Nd4 18.ed4 Bd4 19.Rhf1 Qc6 20.Qe4?? (better is 20.Nd5 Nd5 21.Bd4–+) 20...Bc3–+ 21.Bc3 (21.Ke3 Bb2 22.Qc6 Nc6–+) 21…Qe4 (21...Qe4 22.f3 Qc4 23.Bh8 Rh8–+) 0–1. Fournier,Frederic (1835) – castilho (1805), A match in KasparovChess Playing Zone, 2002.

5.Nf3 Ne7

6.Qb3 0–0 7.Nc3 Nf5 8.Be2 Be6 9.Ne4 d5 10.Nc5 e4 11.Ne5 (11.Nb7 dc4 12.Nd8 cb3 13.Bg7 Ng7 (13...Kg7? 14.Ne6 fe6 15.Ng5+–; 13...Rd8 14.Bf6 Nc6 15.Bd8 Nb4 16.Bf6+/–) 14.Ne6 Ne6+=) 11...c6 12.0–0 Qc8 13.Rac1 b6 14.Ne6 Qe6 15.d4 Kh8 16.b5+/– f6 17.cd5 cd5+/– 18.Nc6 a5 19.Rc2 Re8 20.Bg4 Nd7 21.a4 h5 22.Bf5 Qf5 23.Ba3 Bf8 24.Rfc1+/– Ba3 25.Qa3 Qe6 26.Rf1 ½–½. Tilp,Andreas – Lehmitz,G, corr DDR, 1988.

6.b5 0–0 7.Be2 b6 8.a4 Bb7 9.Nc3 Nd7 10.d4 ed4 11.ed4 Nf5 12.d5 a6 13.0–0 ab5 14.Nb5?? (better is 14.ab5 Ra1 15.Ba1+=) 14...Bb2–+ 15.Rb1 Bg7 16.Nfd4 (16.Bd3 Ne7–+) 16...Nd4 17.Nd4 Bd4 18.Qd4 Ra4 19.Rb3 Qf6 20.Qg4 (20.Qf6 Nf6 21.Re3 Rfa8–+) 20...Ne5 21.Qh3 Bc8 22.Qh6 Ng4 (22...Ba6 23.Re1–+) 23.Bg4 Bg4 24.Rg3 (24.Re1 Rc4 25.Rbe3 Bd7–+) 24...Bf5 25.h4 (25.Rc1 Qd4 26.h3 Rc4 27.Rc4 Qc4–+) 25...Rc4 26.h5 Rg4 (26...Be4!? 27.Rd1–+) 27.hg6 fg6 28.Kh2 (28.Rg4 Bg4 29.Qd2 Re8–+) 28...Qh4 (better is 28...Rh4 29.Qh4 Qh4 30.Kg1 Be4–+) 29.Qh4 Rh4 30.Kg1 Rd4 31.Rc3 Rf7 32.f3 Rd5 33.Rfc1 Rc5 34.Rc5 bc5 35.g4 Bd3 36.Kf2 c4 37.Ke3 c6 38.Rc3 c5 39.Ra3 d5 40.Ra8 Rf8 41.Ra5 Rc8 42.f4 d4 43.Kd2 Bf1 44.Ke1 Bg2 45.g5 c3 46.Ke2 Be4 47.Kd1 d3 48.Ra4 Bf5 49.Rc4 c2 50.Kd2 Kf7 51.Ra4 c4 52.Ra7 Kf8 53.Rh7 Kg8 54.Ra7 c3 55.Kc1 d2 0–1. elektrooon – matima, internet, 2013.

6.Qc2 0–0 7.Be2 Be6 8.0–0 c6 9.a4 a6 10.b5 ab5 11.ab5 Ra1 12.Ba1 c5 13.d4 cd4 14.ed4 ed4 15.Bd4 Nf5 16.Bg7 Ng7 17.Nd4 Qc7 18.Ne6 fe6 19.Nd2 Nd7 20.Qe4 Ne5 21.f4 Nf7 22.Bf3 b6 23.Rc1 Nf5 24.Bg4 Qe7 25.Bf5 gf5 26.Qc6 Rb8 27.Nf3 Nd8 0–1. bauska18 – sahonline50, internet, 2014.

6.d3 Bg4 7.Be2 0–0 8.Nbd2 f5 9.0–0 Qc8 10.a3 a5 11.b5 Nd7 12.a4 b6 13.Nb3 c5 14.Nbd2 e4 (better is 14...d5=) 15.de4?? (15.Bg7 ef3 16.gf3 Kg7 17.fg4 Ne5+/–) 15...fe4?? (better is 15...Bb2 16.Rb1 Bc3–+) 16.Bg7+/– Kg7? (better is 16...ef3!? 17.gf3 Kg7 18.fg4 Qc7+/–) 17.Ne4+– Nf5 18.Nd6 Nd6 19.Qd6 Rf6 20.Qd1 Qc7 21.h3 Bf3 22.Bf3 (22.gf3?! Raf8+/–) 22...Raf8 23.Bd5 Ne5 24.f4 Nd7 25.Qd3 Rd6 26.Rad1 Nf6 27.Qc3 Kh6 28.Bf3 Rfd8 (28...Rd1 29.Rd1 (29.Bd1?! Ne4 30.Qd3 Ng3+–) 29...g5 30.Qe5 Qe5 31.fe5+–) 29.Rd6 (29.g4!? Qe7 30.Rd6 Rd6 31.g5 Kg7+–) 29...Qd6 30.Rd1 Qe7 (30...Qd1 31.Bd1 Rd1 32.Kh2+–) 31.Rd8 Qd8 32.Qc1 (32.g4 g5 33.Qe5 gf4 34.g5 Kg6 35.gf6 Qf6 36.Be4 Kg7 37.ef4 h6+–) 32...Nh5? (32...Kg7 33.Qb2+–) 33.Bh5 (better is 33.g4 Nf4 34.ef4 Qd3 35.f5 Kg7+–) 33...Kh5 34.Kf2 Qd3 (34...Kh6 35.g4+–) 35.g3 (35.g4!? Kh6 36.Qb2 Qd7+–) 35...Qb3 (35...Kh6+–) 36.Qd2 Qc4 (36...Kh6 37.Qd6 Kg7 38.Qc7 Kf8 39.Qb6 Qc2 40.Kf3 Qc4 41.Qd8 Kg7 42.Qa5 Qf1 43.Ke4 Qb1 44.Kd5 Qd3 45.Kc5 Qe3 46.Kc6 Qg3 47.b6 Qf4 48.Qc3 Kh6 49.a5 Qe4 50.Kc7 Qe7 51.Kb8 Qf8 52.Ka7+–) 37.Qe2 (37.Qd8 Qc2 38.Kf3 Qd1 39.Qd1 Kh6 40.Qa1 Kh5 41.Qg7 h6 42.Qe5 g5 43.Qe8) 37...Qe2 38.Ke2 Kh6 39.e4 Kg7 40.e5 Kf7 41.Kd3 Ke6 42.Ke4 h6 43.g4 g5 44.f5 Ke7 45.Kd5 Kd7 46.f6 Ke8 47.e6 Kd8 48.f7 Ke7 49.Ke5 Kf8 (49...c4 50.Kd4 c3 51.Kc3 Ke6+–) 50.Kf6 c4 51.e7 1–0. Fournier,Frederic (1665) – Algirdas (1815), Active, 2007.

6.d4 f6 7.Nc3 0–0 8.d5 f5 9.Be2 h6 10.0–0 g5 11.Ne1 Ng6 12.Bd3 Nd7 13.Qh5 Kh7 14.Qh3?? (better is 14.Bc2+=) 14...g4 15.Qg3 h5 (better is 15...e4!? 16.Bc2 Be5–/+) 16.f3= h4 17.Qf2 Nf6 18.fg4 Ng4 19.Qf3?? (better is 19.Qd2+=) 19...e4–+ 20.Be4? (better is 20.Qe2 Qg5 21.Be4 fe4 22.Rf8 Nf8 23.Ne4 Qe3 24.Qe3 Ne3 25.Ng5 Kg6 26.Bg7 Kg7 27.Rc1–+) 20...fe4 21.Qe4 Rf1 22.Kf1 Qf6 23.Nf3 Nh2 24.Ke2 Nf3 25.gf3 Bf5 26.Qd4 Re8 27.Qd2? Nf4 28.Kf2 Nh3 29.Kg2 Qg5 30.Kh2 Re3 31.Ne4 Qf4 32.Kg2 Qf3 0–1. polynesia46 – bispodorei, internet, 2013.

6.d4 Bg4 7.Be2 0–0 8.0–0 (8.de5 Nbc6 9.Nc3 Bf3 10.gf3 Nb4 11.Qb3 Nbc6; 8.Nbd2 ed4 9.ed4 Na6 10.Qb3 Re8 11.b5 Nb8) 8...ed4 9.Bd4 Nd7 (9...Bd4 10.Qd4 Be6 (10...Bf3 11.Bf3 Nec6) 11.Nc3= (11.Nbd2 Nd7) 11...Nec6) 10.Bg7 (10.Nc3 Be6= (10...a5 11.b5 Bd4) 11.Bg7 Kg7) 10...Kg7 11.Nd4 (11.Nc3 Bf3= (11...Re8=)) 11...Be2 12.Qe2 Nc6 13.b5 (13.Rd1 Nf6=) 13...Nd4+= 14.ed4 (14.Qb2 Qf6 15.Qd4 Qd4 16.ed4 Rfe8+=) 14...Qf6 15.Qd2 (15.Qd1 Rfe8 16.Nc3 Nb6+=) 15...Nb6 (15...Rfe8 16.Nc3+=) 16.Qd3 a6 (16...Rfe8 17.Nc3+=) 17.Nc3 Rfd8 (17...ab5 18.Nb5 c6 19.Nc3+=) 18.a4 d5 19.c5 Nc4 20.Rab1 (20.Rfe1 c6=) 20...ab5 (20...c6 21.Rfe1+=) 21.Rb5= Qc6 (21...Rab8 22.Rfb1=) 22.Rb4 Na5 (22...b6 23.Rd1=) 23.Rb2 (23.f4 Qa6 24.Qa6 Ra6=) 23...Qa6 (23...Re8 24.Qf3=) 24.Qg3 (24.Qa6 Ra6 25.Re1 Re6 26.Re6 fe6=) 24...Qf6+= 25.Rd2 (25.Qd3 c6+=) 25...Nc4 26.Rd3 c6 27.Qc7 (27.h4 Re8+=) 27...Rab8 (27...Qf5 28.Qg3–/+) 28.Re1 (28.Rf3 Qe6+=) 28...Re8 29.Re8? (better is 29.Rf1+=) 29...Re8–+ 30.h3 Re7 (30...Re1 31.Kh2 Qf2 32.Rf3 Qg1 33.Kg3 Qd4 34.Qf7 Kh6 35.Kh2–+) 31.Qg3 Re1 32.Kh2 Rf1 33.Nd1 Qe6 (33...h5 34.h4–/+) 34.Ne3–/+ Ne3 (better is 34...Rb1!?–/+) 35.Re3= Qf6 36.Rf3 Qe7 (36...Qd4 37.Qc7 Kh6 38.Qf7 Qe5 39.g3+–) 37.Qb8 Re1 38.Rb3 Attacking the backward pawn on b7 38...Qf6 (38...Qh4 A) 39.Qb7 Qf4 (39...Qf2?! 40.Rf3 Qg1 41.Kg3=) 40.Rg3 h5–+; B) 39.Rb7 Qf2 40.Rb3 Qg1 41.Kg3 Re2 42.Qe5 Re5 43.de5 Qe1 44.Kh2 Qe5 45.Kg1 d4–+; C) 39.Re3 Re3 40.fe3=) 39.Rf3 (39.Rb7?? Qf2 40.Rb3 Qg1 41.Kg3 Re2 42.Qe5 Re5 43.de5 Qe1 44.Kh2 Qe5 45.Kh1 d4–+; 39.Qb7?? Qf4 (39...Qf2?! 40.Rf3 Qd4 41.Qf7 Kh6 42.Qf8 Kg5 43.h4 Qh4 44.Rh3+=) 40.Rg3 h5–+) 39...Qe7 40.Rb3 Qf6 41.Rf3 (41.Rb7?? Qf2 42.Qe5 Re5 43.de5 Qf5–+; 41.Qb7?? Qf4 (41...Qf2?! 42.Rf3 Qg1 43.Kg3 Qd4 44.Qf7 Kh6 45.Qf6 Qc5 46.a5+=) 42.Rg3 h5–+) 41...Qe7 42.Rb3 Qf6 43.Rf3 (43.Rb7?? Qf2 44.Rb3 Qg1 45.Kg3 Re2 46.Qe5 Re5 47.de5 Qe1 48.Kh2 Qe5 49.Kh1 d4–+; 43.Qb7?? Qf4 (43...Qf2?! 44.Rf3 Qg1 45.Kg3=) 44.Rg3 h5–+) 43...Qd4 (43...Qe7!?=) 44.Qb7+= Qe5 45.g3 Qe6 (45...Qe8 46.a5 d4 47.a6+/–) 46.a5 d4 47.a6 Qd5 ½–½. Moiseev,Danila (1850) – Murtuzov,Rauf (2080), European School Championships, 2014.

6.Be2 a6 7.Qc2 Bf5 8.d3 0–0 9.0–0 Nbc6 10.a3 a5 11.b5 Na7 12.Nbd2 c6 13.a4 cb5 14.cb5 Rc8 15.Qb3 Be6 16.Qa3 Nd5 17.Rac1 Qd7 18.Ne4 (18.Nc4!? Rfd8 19.Ng5+/–) 18...Nb4+= 19.Bc3 d5 (better is 19...f5!? 20.Neg5 Na2=) 20.Neg5+/– (20.Bb4 ab4 21.Qb4 de4 22.de4 Rc1 23.Rc1 Rc8–/+) 20...e4 21.de4 Rc3 22.Rc3 Bc3 23.Qc3 Rc8 24.Qe5 de4? (better is 24...h6 25.ed5 Nd5+–) 25.Ne4 (worse is 25.Qe4 Bb3+–) 25...Qd5 (25...Qd8+–) 26.Nf6 Kf8 27.Nd5 Nd5 28.Nd4 Re8 29.Qh8 (better is 29.Bc4 Nc8 30.Bd5 Bd5 31.Qd5 Kg7+–) 29...Ke7 30.Qh7 Nf6 31.Qh4 Rh8 (31...Rd8+–) 32.Qh8 1–0. ourang – iteano1976, internet, 2013.

6.Be2 Na6 7.a3+=.

6.Be2 b6 7.0–0 Bb7 8.b5 Nd7 (8...a6 9.a4=) 9.d4 (9.Nc3 0–0=) 9...0–0 10.de5 de5 11.Nc3 e4 12.Nd4 Nc5 (12...c5 13.bc6 Nc6 14.Rb1=) 13.Qc2 c6 (better is 13...Qc8!?=) 14.Ne4+/– cb5 15.Nc5 bc5 16.Nb5 Qb6 (16...Bb2!? 17.Qb2 Nf5+/–) 17.Bg7 Kg7 18.Rab1 Qf6 19.Rfd1 Nf5 (19...Bc6!?+/–) 20.e4+– Nh4? (20...Ne7 21.Rd6 Qe5 22.Qc3 Qc3 23.Nc3+–) 21.Rb3 Bc6? (21...Rfe8 22.Re3 Rad8+–) 22.Rd6 Qg5 (22...Be4 23.Qe4 (23.Rf6? Bc2 24.Rc6 Bb3 25.ab3 Rfe8–+) 23...Rae8 24.Qd3+– (24.Rf6?! Re4 25.Nc3 Re2 26.Rf7 Rf7 27.Ne2 Rd7+=)) 23.Rg3 (23.Rg3 Qe5 24.Rc6+–) 1–0. Janek – Gintas, internet, 2017.

6.Be2 b6 7.0–0 Bb7 8.Nc3 Nd7+=.

6.Be2 b6 7.0–0 Bb7 8.d4 e4 9.Nfd2 c6 (better is 9...0–0!?+=) 10.Ne4+– d5 11.cd5 cd5 (11...Nd5 12.Qa4+/–) 12.Ng3 0–0 13.Nd2 f5 14.Nf3 Kh8 15.Qd2 Nd7 16.Ng5 Rf6 17.Rfc1 Nf8 18.Rc2 Qd6 Black intends f4 19.Rac1 Rc8 20.Rc8 Bc8 21.Bd3 f4 22.N3e4! fe3 (22...de4 23.Ne4 Double attack) 23.Nf6+– (23.Nd6?! ed2 24.Rd1 Bd7 25.Ndf7 Kg8+/–) 23...ed2 1–0. Machete99 (2350) – bifsoper (1825), ICC, 2002.

6.Be2 c6 7.0–0 Qc7 8.d4 0–0 9.Nc3 Nd7 10.Qb3 ed4 11.ed4 Nf5 12.Na4 Re8 13.Bd3 Nf8 14.Rac1 Bd7 15.b5 c5 16.dc5 Bb2 17.Qb2 dc5 18.Nc3 Nd4 19.Nd4 cd4 20.Nd5 Qd6 21.Qd4 Be6 22.Nf6 1–0. brother – conill, internet, 2013.

6.Be2 c6 7.h3 b6 8.0–0 a5 9.a3 ab4 10.ab4 Ra1 11.Ba1 c5 12.bc5 bc5 13.d4 ed4 14.ed4 cd4 15.Nd4 0–0 16.Nd2 Qb6 17.N2f3 Nec6 18.Nc6 Qc6 19.Bg7 Kg7 20.Nd4 Qc5 21.Qa1 Kg8 22.Rc1 Nc6 23.Nc6 Qc6 24.Bf3 Qc5 25.Qb2 Bd7 26.Bd5 Bc6 27.Bc6 Qc6 28.Qd4 White plans c5 28...Rc8 29.f3 Qd7 30.Kf2 d5 (30...h6 31.Re1=) 31.c5 (31.Rd1!?+/–) 31...Rc6 32.Rd1 Qa7 33.Qd5 Rc5 34.Qd4 Rc2 35.Kg1 Qe7 36.Qd8 Kg7?? (36...Qd8 37.Rd8 Kg7 38.h4=) 37.Qd4 (better is 37.Qe7 Rc8 38.Rd7+–) 37...Kh6= 38.Qf4 g5?? (better is 38...Qg5 39.Qg5 Kg5=) 39.Rd6+– Kg7?? (39...f6 40.Rf6 Kg7 41.Qg5 Kh8+–) 40.Qd4 f6 41.Rd7 Rc1 42.Kh2 Qd7 43.Qd7 Kg6 44.Qe8 Kg7 45.g4 Rc7 46.Kg3 Rf7 47.h4 gh4 48.Kh4 h6 (48...Rc7 49.f4+–) 49.f4 Ra7 (49...Rf8 50.Qd7 Rf7 51.Qf5+–) 50.Kh5 Ra5 (50...Rf7 51.Qf7! Kf7 52.Kh6 f5+–) 51.f5 Ra7 52.Qg6 Kf8 53.Qf6 Rf7 54.Qh6 Kg8 55.Qg6 Rg7 56.Qg7! Kg7 57.g5 Kg8 58.Kg6 Kf8 59.Kh7 Kf7 60.g6 (better is 60.f6 Ke6+–) 60...Kf6 61.g7 Kf5 62.g8Q 1–0. horacyad2010 – ficzu, internet, 2012.

6.g3 0–0 7.Bg2 (7.d4 a5 8.b5 e4=) 7...c6 (7...e4 8.Bg7 ef3 (8...Kg7?! 9.Nd4=) 9.Bf8 fg2–/+ (9...Qf8? 10.Qf3 Nbc6 11.a3+–)) 8.Nc3 Bg4 9.Qc1 Qd7 10.0–0 Bh3 11.d4 Bg2 12.Kg2 ed4 13.Nd4 d5 14.c5 h5 15.a4 h4 16.Nf3 (better is 16.Qd2!?=) 16...h3–/+ 17.Kg1 Qf5 (17...Qg4!? 18.Nd2 Qb4–/+) 18.Nh4 Qe6 (18...Qh5 19.f4+=) 19.Qd1 (19.Ne2 Bb2 20.Qb2 Nd7+=) 19...Bf6 (better is 19...a5!? 20.Rb1 ab4–/+) 20.Nf3= g5 21.Re1 g4 22.Nd4 Qd7 23.e4 de4 (23...Bg7!?+=) 24.Re4+/– Na6 (24...Rd8 25.Qg4 Qg4 26.Rg4 Kf8 27.Rd1+/–) 25.Nc2 (25.Rg4!? Ng6 26.Ne4 Bg7+–) 25...Qd1+/– 26.Rd1 Bc3 27.Bc3 Nd5 (27...Ng6 28.Rg4 Rfd8 29.Rgd4 Rd4 30.Rd4+/–) 28.Rg4 Kh7 29.Rh4 (better is 29.Rg7!? Kh6 30.Rd5 cd5+–) 29...Kg6 30.Be5 Rh8?? (30...Rfe8 31.Bd6 Nc3+/–) 31.Rdd4 (31.Bh8 f5+–) 31...Kf5?? (better is 31...Rh4!? 32.Rh4 Re8=) 32.Bd6 (better is 32.Bh8 Re8 33.Rh7+–) 32...Rae8 (32...Nc3 33.Ne3 Ke6 34.Rde4 Ne4 35.Re4 Kd7 36.Re7 Kc8 37.b5+–) 33.Kf1 b6 34.Bf4?? (better is 34.Rc4!? Ke6 35.Rce4 Kd7 36.Re8 Re8 37.Rh7+– (37.Rh3?! Nab4 38.Nb4 Nb4+/–)) 34...bc5?? 35.bc5?? Rh4–+ 36.gh4 Nc5?? 37.Ne3= Ne3 38.fe3 Ne4 39.Ke2 Rb8?? 40.Kd3 Rb3+= 41.Kc4?? Nf2 42.Kb3+– c5 43.Rc4 Kg4 44.Rc5 Kf3 45.Bg5 Ne4 46.Rc6 f5. kannisogoet – virgis (1710), internet, 2013.

6.Nc3 0–0

7.a3 a5 =.

7.d3 Na6 8.a3 c5 9.bc5 dc5 10.Be2 f5 11.Qc2 b6 12.0–0 Bb7 +=.

7.d3 Nbc6 8.b5 Nb8 9.Be2 Nd7 10.0–0 a6 11.a4 Re8 12.Re1 Nf6 =.

7.d4 ed4 8.ed4 d5 9.Ne5 =+.

7.d4 ed4 8.Nd4 Nf5 (8...Nbc6 9.Nc6 Nc6 10.a3 Ne5 11.c5 Bg4 12.Qc2 dc5+=) 9.Nf5 (9.Nd5 Re8 10.Qd2 c6 11.Nf5 Bf5 12.Bg7 Kg7=) 9...Bf5 10.Bd3 (10.Be2 Nc6 11.a3 Re8 12.0–0 Qh4=) 10...Bd3 11.Qd3 Nc6 12.a3 Qh4 13.Na4 Bb2 14.Nb2 Ne5 15.Qe2 f5 16.0–0 Rae8 17.Qc2 f4 18.ef4 Qf4 19.h3 Rf5 20.Qc3 Rg5 21.Kh1 Rf8 22.Rad1?? (better is 22.c5+=) 22...Qe4 (better is 22...Rg2! 23.Kg2 Nf3 24.Qf3 Qf3 25.Kg1 Qa3 26.Rd2–+) 23.f3 Qe2 24.Qd2 Rg2 25.Qe2 Re2 26.Nd3? (better is 26.f4 Nd7 27.Nd3–+) 26...Nf3 27.Rf2 Rf2 28.Nf2 Ne5 29.Kg2 Nc4 30.Rd3 Re8 31.Ng4 Kg7 32.Kf2 Ne5 (32...b5 33.Kg3–+) 33.Rc3 Ng4 34.hg4 c6 35.Rd3 d5 36.b5 (36.g5 Re5 37.Rg3 b6–+) 36...Re4 37.Kf3 (37.g5 Rf4 38.Ke2 d4–+) 37...Kf6 38.bc6 bc6 39.Rc3 Rc4 40.Rd3 Kg5 41.Re3 Rf4 (41...Rf4 42.Kg2 Rg4 43.Kf2 h5–+) 0–1. Kalmutzki – Kunze, DDR–Einzel ch ak15/1, 1987.

7.d4 Bg4 8.Be2 (8.de5 de5 9.Qb3 a5=) 8...ed4= 9.Nd4 Be2 10.Nde2 (worse is 10.Nce2 c5–+) 10...a5 (10...Nec6 11.Qb3=) 11.b5 Nd7 12.Nd4 (12.0–0 Ne5 13.Qb3 Qd7=) 12...Ne5 13.Qe2 c5 (13...a4 14.Rd1=) 14.Nf3 (14.Nc2 d5 15.Nd5 Nd5=) 14...a4 15.a3 Qa5 16.Rc1 d5 (16...Rfe8 17.0–0+=) 17.Ne5 Be5 18.0–0 dc4 19.Qc4 Rfc8 20.Rfd1 Qc7 21.f4 (worse is 21.Na4 Ra4 22.Qa4 Bb2+=) 21...Bg7 22.Rd3 (22.Rc2 Rd8+=) 22...Rd8 Black is in command 23.Rcd1 (23.Rd8!? Qd8 24.Rd1+= (worse is 24.Qc5 Qd2–/+)) 23...Nf5= 24.g4 (24.Qe4 Rd3 25.Qd3 c4=) 24...Nd6+= 25.Qa2 (25.Qd5 c4 26.R3d2 Qa5–/+) 25...c4–/+ 26.Rd5 Qe7 27.e4 (27.Kg2 Qe3 28.g5 Qf4–+) 27...Qh4 (27...Ne4 28.Rd8 Rd8 29.Rd8 Qd8 30.Ne4 Qd1 31.Kf2 Qc2 32.Kg3 Bb2 33.Nf6 Kg7 34.Ne4–+) 28.Ne2 White prepares the advance e5 (28.g5 Qg4 29.Kh1 Qf4–/+) 28...c3 (28...Bb2 29.Qb2 Ne4 30.Rd8 Rd8 31.Rd8 Qd8 32.Qd4 Qd4 33.Nd4–+) 29.Bc3–/+ Qg4 30.Ng3 Bc3 31.e5 Ba5 (31...Qf4 32.ed6 Rd7 33.Qf2+=) 32.ed6 (32.Rd6 Qf4 (32...Qd1?! 33.Rd1 Rd1 34.Nf1–+) 33.Rf1 Qe3 34.Kg2 Qb3 35.Qb3 ab3–/+) 32...Qf3 33.Qf2 Qa3 The passed pawn on a4 quickly leads to threats 34.d7 (34.f5 Bb4 35.fg6 fg6+=) 34...Qe7 35.f5 Bc3 (35...a3 36.Qa2–/+) 36.Qf3 (36.Qc5 Qc5 37.Rc5 Ba5–/+) 36...Bg7 Black plans a3 (36...Bh8 37.fg6 fg6 38.Rd6–/+) 37.Ne4 (37.Rd6 Be5 38.f6 Qf8–/+) 37...gf5 38.Ng3 a3 39.Nf5 Qg5 40.Qg2 Threatening mate... how? 40...Qg2 41.Kg2 Bc3 42.Rf1 Kf8 43.Rd3 Bb2 44.Rd2 Be5 45.Nh6 Threatening mate: Rxf7 45...f6 46.Ng4 Ke7 47.Ne5 (47.Rfd1 Ra5 48.Ne5 fe5–+) 47...fe5 48.Rfd1 a2 (better is 48...Ra5!?–+) 49.Ra1–/+ Rd7 50.Rda2 Ra2 51.Ra2 Ke6 52.Rc2 (52.Ra7 Kd5–/+) 52...e4 (52...Rd5 53.Rc7 Rb5 54.Rh7–/+) 53.Kf2 Ke5 54.b6 (54.h4 h6 55.Rc8 Rd5–/+) 54...Rd6 55.Rc7 (55.Ke3 Rd3 56.Ke2 Rb3–/+) 55...Rb6 56.Re7 Kf6 (56...Kd5 57.Rh7 Rf6 58.Ke2–/+) 57.Rh7 (57.Re4 Rb2 58.Kg3 b5–/+) 57...Rb3 58.h4 b5 59.Rb7 (59.Ke2 b4–/+) 59...Kf5 60.Ke2 (60.h5 Kg5–/+) 60...b4–+ 61.Rf7 (61.h5 Kg5–+) 61...Kg4 –+. Dyga,Ryszard – Zieger,U, corr GER–ch qgC04, 1993.

7.Be2 c6 8.0–0 f5 9.Qb3 Kh8 10.d4 e4 11.Ng5 h6 12.Nh3 Be6 13.Nf4 Bf7 14.d5 Nd7 15.Ne6 Be6 16.de6 Ne5 17.Rad1 Rf6 (17...Qc7 18.Rd2=) 18.Na4 Qc7?? (better is 18...Rf8+=) 19.Be5+– de5 20.Rd7 (20.Rd7 Qc8 21.Re7 Re6 22.Re6 Qe6 23.Nc5+–) 1–0. Fournier,Frederic (1800) – guest39420 (1695), 5 min +7s chess16.com, 2008.

7.Be2 Be6 8.0–0 a5 9.b5 Nd7 10.d4 h6 11.a4 f5 12.Qb3 e4 13.Nd2 Bf7 14.Rac1 b6 15.f3 d5 16.cd5 Nf6 (16...ef3!? 17.Nf3 Ra7+–) 17.fe4+– fe4 18.Nde4 Ne4 19.Ne4 Nd5? (better is 19...Bd5 20.Rf8 Qf8+–) 20.Qd1 (better is 20.Rf7 Rf7 21.Bc4+–) 20...Ne3–/+ 21.Qd3 Nf1 22.Rf1 Qd5 (22...Bd5–+) 23.Bf3? (23.Nf6!? Bf6 24.Rf6+=) 23...Qf5 (23...Qa2!? 24.Rf2 Rad8 25.Qc2–+) 24.Qc3 Rad8 25.Ng3 Qf4 26.Bd5? (better is 26.Ne2 Qd6 27.Ba3 Bd4 28.Nd4 Qd4 29.Qd4 Rd4 30.Bf8 Kf8 31.Bd1–/+) 26...Bd4!–+ (26...Bd5 27.Rf4 Rf4 28.Qc7=) 27.Kh1 (27.Qd4 Rd5 Zwischenzug) 27...Qf1! 28.Nf1 Bd5 (28...Bd5 29.Qd3 Bb2 30.Qg6 Bg7–+) 0–1. brother – roldif (1795), internet, 2013.

6.d3 0–0

7.Qc2 b6 8.Be2 Bb7 9.Nbd2 a6 10.0–0 c6 11.a4 b5 12.cb5 ab5 13.ab5 Ra1 14.Ra1 cb5 15.d4 ed4 16.Nd4 (worse is 16.Bb5 Qb6 17.Ra5 Bf3+=; worse is 16.ed4 Bc6=) 16...Nd5 17.Nb5 Nb4 18.Qb3 Bb2 19.Qb2 Nd5 20.Bf3 (20.Ne4 Qe7+–) 20...Qb6? (20...Bc6 21.Ne4+/–) 21.Rb1 (21.Nc4!? Qd8+–) 21...Bc6 22.Bd5 (22.Nd6!? Qb2 23.Rb2+–) 22...Bd5+/– 23.Nd4 Qb2 24.Rb2 Nc6 25.N2f3 (25.Rb5 Ne7+=) 25...Nd4 26.Nd4 (worse is 26.ed4 Ra8 27.Kf1 Ra4–/+) 26...Ra8 27.h3 h5 28.Rb6 Ra1 29.Kh2 Ra2 30.Rd6 Ba8 31.Nb5 Kg7 32.Rd8 Bc6 33.Nc3?? (better is 33.Nd4 Be4 34.f3+/–) 33...Rf2–/+ 34.e4 Kh6 35.Nd5 Re2 36.Rh8 Kg7 37.Rc8 Bb7 38.Rc7 Ba8 39.Kg3 Re4–/+ 40.Nf4? Re3 41.Kf2–/+ Re5 42.Nd3 Rf5 43.Kg1 h4 44.Nf2 Ra5 45.Ng4 Ra1 46.Kf2 Ra2 47.Ke3 Bg2 48.Ne5 Bh3 49.Rf7 Kh6 50.Rf3 Ra3 51.Nd3 Bf5 52.Rf5 gf5 53.Kd4 (53.Kd4 Rd3! 54.Kd3–+). ourang – kobieciarzz, internet, 2013.

7.Nc3 a5 8.ba5 Ra5 9.Be2 =+.

7.Nc3 Nd7 8.Be2 b6 (8...a5 9.ba5 Ra5 10.0–0=) 9.0–0+= Bb7 10.e4 (10.d4 ed4 11.Nd4 c5+=) 10...a6 (10...f5 11.Re1=) 11.Ne1 (11.d4 ed4 12.Nd4 c5+=) 11...Nc6 12.a3 Nd4 (12...f5 13.Nf3=) 13.Nc2 (13.Nf3 Ne2 14.Qe2 f5=) 13...c5 (13...Ne2 14.Qe2 f5 15.Nd5+=) 14.Ne3 (14.Nd4 cd4 15.Nd5 f5=) 14...Nf6 (14...f5 15.Ncd5=) 15.Re1 Qc7 16.Bf1 (16.Ncd5 Nd5 17.Nd5 Bd5 18.ed5 f5=) 16...a5 (16...cb4 17.ab4 a5 18.b5=) 17.bc5 bc5 18.Nb5 Nb5 19.cb5 Nd7 (19...Qb6 20.a4=) 20.a4 Nb6 21.Nc4 Bc8 (21...f5 22.Rc1=) 22.Bc3+= The isolani on a5 becomes a target 22...Nc4 23.dc4 Be6 24.Qd2 Rfd8 25.f3 Rd7 26.Bd3 Qb6 27.Kh1 Bf8 (27...Rb7 28.Rab1+=) 28.Re2 (28.f4 Bh6 29.g3 ef4 30.gf4 Bg7+=) 28...Bg7+= 29.Rf2 Qd8 (29...Rb7 30.f4+=) 30.Rd1 Qb6 31.Qb2 (31.f4 Bh6 32.g3 ef4 33.gf4 Bg7+=) 31...f6 32.f4 Bf7 (32...Re8 33.Qd2 Bh6 34.Ba5+/–) 33.Rdf1 (33.Qd2 Re7+/–) 33...Raa7 (33...Re8 34.Qd2 Bh6 35.Ba5+/–) 34.Qe2 (34.Qd2 Bh6 35.g3 ef4+/–) 34...Ra8 (34...Rab7 35.Qg4+/–) 35.Rf3 (35.Qg4 Re7+/–) 35...Rf8 36.Rg3 (36.Qd2 ef4 37.Ba5 Qb7+–) 36...Rb7 37.Qd2 Ra8 (37...ef4 38.Ba5 Qa7 39.Rf4 Bh6+=) 38.h4 (38.Rgf3 Bh6 39.g3 Be6+/–) 38...Rd7 (38...Bh6 39.Rgf3 Bf4 40.Rf4 ef4 41.Rf4=) 39.Be2 (better is 39.Rgf3!?+/–) 39...Bh6= 40.h5 (40.Rd3=) 40...Kf8 (40...Bf4 41.Rf4 ef4 42.Qf4 f5 43.hg6 Bg6+= (43...hg6?? 44.Qh6 Be8 45.Qh8 Kf7 46.Qg7 Ke6 47.Qf6)) 41.hg6+= hg6 42.Rh3 Bg7? (better is 42...Bf4 43.Rf4 ef4 44.Bf6 Bg8+=) 43.fe5+– fe5 44.Qd5 Qb7 45.Bg4 (45.Rh7 Kg8 46.Qb7 Rb7+/–) 45...Qd5 (45...Kg8 46.Qd3 (46.Bd7?? Bd5 47.cd5 Qd7–+) 46...Rdd8 47.Rhf3+–) 46.cd5+– Re7 47.Be6 (47.Rh7!? Kg8 48.Rh4 Rb7+/–) 47...Ke8+/– 48.Bf7 Rf7 49.Rf7 Kf7 50.Bd2 Kg8 51.Rb3 Bf6 (51...c4 52.Rb2+/–) 52.b6+– Bd8 (52...Kf7 53.b7 Rb8 54.Ba5+–) 53.Kg1 Kf7 54.Kf1 (54.Rb5 c4+–) 54...Kf6 55.Ke2 Rb8 56.Kd3?? (better is 56.Ba5 c4 57.Rb4+–) 56...Rb6+= 57.Rb6 Bb6 58.Kc4 Ke7 (better is 58...Bc7!?+=) 59.Kb5+= Bc7 60.Kc6 (better is 60.Ba5!? Kd7 61.Bd2+=) 60...Kd8 61.Bg5 Kc8 62.Bc1 (62.Kb5 Kd7+=) 62...Kd8 (62...c4!?–/+) 63.Bd2 ½–½. Mus,Roman – Hoszowski,Piotr, corr 1AMM Poland, 1992.

7.Nc3 f5 8.Be2 Nd7 9.Qb3 c5 10.a3 h6 11.Nb5 Rf6 12.d4 a6 13.bc5 (better is 13.Nc3=) 13...e4?? (better is 13...ab5 14.cb5 Kh8 15.cd6 Rd6 16.de5 Rd5+=) 14.cd6+/– Nc6 15.Nc7 ef3 16.Bf3 Rb8 17.Bd5 Kh7 18.Ne6 Qb6 19.Qc2 Bh8 20.0–0 Nf8 21.c5 Qa7 22.Nc7 Bd7 23.Ba2 Nd8 24.Rab1 Nfe6 25.Nd5 Rf8 26.Nb6 Be8 27.f4 Ng7 28.d5 Rf7 29.Bd4 Nh5 30.Bh8 Kh8 31.e4 Bb5 32.Rf2 fe4 33.Qe4 Kg7 34.Qd4 Nf6 35.a4 Bd7 36.a5 Bf5 37.Re1 Rf8 38.h3 h5 39.Bb3 Nf7 40.Ba4 Nh6 41.Re7 Rf7 42.Rfe2 Nhg8 43.Rf7 (better is 43.Rc7!? h4+–) 43...Kf7 44.c6 Rd8 45.c7 Rd6 46.Qc5 Rb6 47.ab6 (47.Qb6?! Qb6 48.ab6 Ne7+–) 47...Qa8 48.d6 Qc8 49.Bb3 Kg7 50.Qd4 (better is 50.Qc3!? Kh7+–) 50...Kh6 (50...Kh7+–) 1–0. Baranov,Andrey (2115) – Fetisov,V (2245), RUS–ch sf Krasnodar, 1999.

7.Be2 a6 8.a3 Nd7 9.Nbd2 b6 10.0–0 Bb7 11.d4 e4 12.Ng5 d5 13.cd5 Nd5 14.Nge4 (14.Nde4?! Qe7 15.Bf3 h6+=) 14...f5 15.Ng3 (15.Nc3 Nc3 16.Bc3 Bd5+/–) 15...Qg5 (15...f4!? 16.ef4 Rf4+=) 16.Nf3 Qe7 17.Bc4 Kh8 18.Qb3 N5f6 19.Be2 Ne4 20.Rac1 Ng3 21.hg3 Nf6 22.Rc2 Ne4 23.Rfc1 Rac8 24.d5 Bb2 25.Qb2 Kg8 26.Bc4 Qg7? (better is 26...Qd6+/–) 27.d6+– Kh8 28.Be6 (better is 28.Qg7!? Kg7 29.Be6+–) 28...Qb2 29.Rb2 Nd6 30.Bc8 Rc8 31.Rbc2 c6 (31...Ne8 32.Nd4+–) 32.Ne5 Ne4 33.Nc6 Kg7 34.Nd4 Rc2 35.Rc2 Bd5 36.Rc7 Kh6 37.Ra7 Bc4 38.a4 (38.Rb7 b5+–) 38...Nc3 39.a5 ba5 40.ba5 Ne2 41.Kh2 Nc1 (41...Nd4 42.ed4 g5+–) 42.Rc7 Bd3 (42...Nd3 43.Rc4 Nf2 44.Rc6+–) 43.Rc1 1–0. Fournier,Frederic (1665) – dolz (1635), Active, 2007.

7.Be2 c6 8.Qc2 Nd7 9.Nbd2 d5 10.cd5 cd5 11.a3 b6 12.0–0 Bb7 13.Rac1 Rc8 14.Qb1 Rc1 15.Rc1 e4? (better is 15...f6!?+=) 16.Bg7+– Kg7 17.de4 de4 18.Ne4 Be4 (18...Nf5 19.Bd3+–) 19.Qe4 Nf6 20.Qb7 a5 21.ba5 (21.Rd1!? Qe8+–) 21...ba5 22.Rd1 Qe8 23.Bb5 Qb8 24.Qb8 Rb8 25.a4 Ned5 26.Rc1 Nb6 27.h3 Rd8 28.Nd4 Ne4 29.Rc7 Nd6?? (better is 29...Rc8 30.Rc8 Nc8+/–) 30.Ne6 Kf6 31.Nd8 Nb5 1–0. Fournier,Frederic (1890) – serrulata (1835), Active, 2008.

7.Be2 Nd7 8.Qc2 f5 (8...a5 9.b5=) 9.0–0 Nf6 (9...a5 10.b5=) 10.Nbd2 (10.d4 e4 11.Nfd2 c5=) 10...h6 11.Rac1 (11.Nb3 c6+=) 11...g5 (11...Be6 12.Bc3=) 12.a4 (12.d4 e4 13.Ne1 c5+=) 12...Be6 (12...g4 13.Nh4=) 13.e4 (13.d4 g4 14.Nh4 Nc6+/–) 13...fe4 (13...g4 14.Nh4=) 14.Ne4 Ne4 (14...g4 15.Nfd2=) 15.de4 Ng6 (15...g4 16.Ne1=) 16.c5+= Nf4 (16...g4 17.Ne1+=) 17.cd6 cd6 18.Bc4 Bc4 (18...Qf6 19.Qd1+=) 19.Qc4 Kh8 (19...Kh7 20.a5+=) 20.Rcd1 (20.a5 Qc8 21.Qc8 Rac8 22.Rc8 Rc8+=) 20...Rc8= 21.Qb3 Qf6 22.b5 g4 23.Nd2 h5 (23...Qf7 24.Qe3=) 24.Rfe1 (24.b6 ab6 25.Qb6 h4+=) 24...Bh6 25.Rf1 (25.Rf1 Bg7 26.a5+=). Sternik,Ryszard – Kostyra,Mariusz, corr Poland, 1993.

7.Be2 e4 8.Bg7 ef3 9.Bf8 fe2 10.Qe2 Qf8 11.0–0 =.

7.Be2 Bf5 8.Nbd2 Nbc6 9.a3 a6 10.0–0 b5 11.cb5 ab5 12.d4 ed4 13.Nd4 Nd4 14.Bd4 Bd4 15.ed4 c6 16.Nf3 Be4 17.Bd3 Bf3 18.Qf3 d5 19.Rfe1 Qd7 20.Qf6 Rfe8 21.Be2 Qe6 22.Qe6 fe6 23.Bg4 Nf5 24.Bf5 ef5 25.Kf1 Kf7 26.f4 (26.Rac1 Ra6=) 26...Re7 (26...Re4!? 27.Re4 de4–/+) 27.Re5 Re5 28.fe5 Ke6 29.g3 h5 30.h4 Ra4 31.Ke2 (31.Rc1 Ra3 32.Rc6 Kf7 33.Rf6 Kg7=) 31...Kf7 (better is 31...c5!? 32.dc5 Ke5=) 32.Kf3+= Ke6 33.Kf4 Ra6 34.Kg5 Kf7 35.Ra2 (35.e6 Ke6 36.Kg6 Ra8 37.Re1 Kd7+/–) 35...Kg7 (35...Ra8!?=) 36.e6+/– Ra7 37.Re2 Ra3 (better is 37...Re7+/–) 38.e7+– Rg3 39.Kf4 Rg4 40.Kf3 Re4 41.e8Q Re8 42.Re8 Kf7 (42...g5 43.hg5 h4 44.Re6+–) 43.Rc8 1–0. Fournier,Frederic (1705) – albmc, Active, 2007.

6.d4 0–0

7.Qb3 Nd7 8.Be2 a5 9.b5 ed4 10.ed4 a4 (10...d5 11.c5 Re8 12.Nc3 Nf6 13.0–0 Bg4 14.Rfe1 Nf5 15.Qa4 Ne4 16.Rad1=) 11.Qc2 (11.Qa3 d5 12.c5 Re8 13.0–0 Nf5 14.Re1 Nf8 15.Qb4 Qf6 16.Ne5=) 11...Nf6 (11...d5 12.0–0 dc4 13.Bc4 Nb6 14.Bd3 Re8 15.Re1 Be6 16.Be4=) 12.0–0 Re8 (12...Bf5 13.Qd2 Re8 14.Re1 d5 15.Nc3 dc4 16.Bc4=) 13.Bd3 (13.Re1 Bf5 14.Bd3 Bd3 15.Qd3 d5 16.Nc3=) 13...Nh5 (13...d5 14.c5 Bg4 15.Ne5 Bf5 16.Bf5=) 14.g3 (14.Re1 Nf4 15.Nc3 Nd3 16.Qd3=) 14...Bh3 (14...d5 15.c5 Nf6 16.Re1=) 15.Re1 Qd7 (15...d5 16.c5=) 16.Ng5 (better is 16.Nbd2=; 16.Nc3=) 16...Nf5?? (16...Nc6 17.Re8 Re8 18.Nf3 Nd4 19.Bd4 Bd4 20.Nc3–+) 17.Be4?? (17.Re8 Re8 18.Nh3 Nd4 19.Bd4 Bd4 20.Nc3 Qh3 21.Bf1–/+) 17...Nd4+= 18.Qd2 Qg4 19.Bd4 Bd4 20.Qd4 Qg5 21.Nc3 Rab8 (21...Bc8 22.Nd5 c6 23.Nc7+–) 22.Bf3 (22.Bb7 Re1 23.Re1 Qf6 24.Qf6 Nf6+=) 22...Nf6 23.Re8 Re8 24.Bb7 Qf5 (24...a3 25.Bc6 Bd7 26.Nd5 Nd5 27.Bd7+= (27.Qd5 Qd5 28.cd5 Bc6 29.dc6 Re2–/+; worse is 27.cd5 Bc6 28.bc6 Re2=; 27.Bd5?! Re2=)) 25.Bg2 (25.Bc6 Re7 26.c5+=) 25...Bg2= 26.Kg2 Ng4 27.Qf4 (27.Rd1!?=) 27...Qf4 28.gf4 Nf6 (28...Ra8 29.Nd5 Ra7 30.Re1+–) 29.Kf3 (29.Na4!? Kf8 30.f5+=) 29...a3= 30.Rb1 Nd7 (30...Kg7 31.Rb3 Ra8 32.Nb1+=) 31.Nd5+/– Kg7 (31...Kf8 32.Rb3 Nc5 33.Ra3+–) 32.Rb3 (32.Nc7?! Rc8 33.Nd5 Rc4+=) 32...Nb6 33.Nb6 (33.Ra3 Nc4 34.Ra7 Rb8 35.Nc7 h6+/–) 33...cb6 34.Ra3 Rc8 35.Ra6 Rc4 36.Rb6 d5 37.Ra6 Rb4 38.a4 Rb3 39.Ke2 d4 40.b6 Kf6 (40...d3 41.Kd2+–) 41.a5+– Kf5 42.Ra7 Ke4 (42...d3 43.Kd2 Ke6+–) 43.Re7 Kd5 44.b7 (44.Rf7 Rb2 45.Kd3 Rb3 46.Kc2 Ra3+–) 44...Rb2 (44...d3 45.Kd2 Kc4 46.Rc7 Kd5 47.a6+–) 45.Kd3 (45.Kd3 Kc6 46.a6+–) 1–0. Van Weersel,Arlette (2230) – Schut,Donna (2065), 12th HZ Open, 2008.

7.Nc3 ed4+= 8.Nd4 Nbc6 9.Nc6 Nc6 10.a3 Be6 11.Qc2 (11.c5 dc5 12.Qd8 Rad8 (worse is 12...Nd8 13.bc5 b6 14.Na4=) 13.bc5 Na5+=) 11...a6 (11...a5 12.b5 Ne5 13.Nd5+=) 12.b5 (12.Nd5 Ne5=) 12...Ne5 (better is 12...ab5 13.cb5 Ne5+=) 13.Nd5? (13.c5 dc5 14.Rd1 Qh4+=) 13...c6 (better is 13...ab5!? 14.e4 Re8–+) 14.bc6+= bc6 15.Nf4 (15.Nb4 Qb6 16.Rd1 a5+=) 15...Rb8 (15...Qa5 16.Kd1–/+) 16.Bc3+= Qb6 (16...Bf5 17.e4 Qh4 18.ef5 Qf4 19.h3–/+) 17.Ne6 (17.Be2 Qb3 18.Qb3 Rb3–/+) 17...fe6–/+ 18.Rd1 (18.Rc1 Qb3 19.Bb4 Qc2 20.Rc2 c5–+) 18...Ng4 (18...Qb3!? 19.Qb3 Rb3–/+) 19.Bg7+= Kg7 20.Qc3 (20.Rd6? Qb1 21.Qb1 Rb1 22.Kd2 Nf2–+) 20...Kg8 21.f3 Ne3 (21...Qe3?! 22.Qe3 Ne3 23.Rd6=) 22.Rd6 Qb1 (22...Nf1?! 23.Rf1 Qc5 24.Re6 Rb1 25.Ke2 Rb2 26.Qb2 Qc4 27.Kf2 Qe6 28.Re1=) 23.Ke2 Nf5 (23...Rb3 24.Qe3 Re3 25.Ke3 Qe1 26.Kd4 Qd2 27.Bd3 c5 28.Kc5 Rc8 29.Kd4 Qf4 30.Kc3 Qd6–+) 24.Rd1–/+ Qb2 (24...Rb2 25.Ke1 Qa2 26.Qe5–/+) 25.Qb2 Rb2 (25...Rb2 26.Rd2 Rfb8–/+) 0–1. Teichmann,Erik – Lane,Gary W, 11 BCF–ch, 1985.

7.Be2 b6 8.Nc3 Bb7 9.de5 de5 10.0–0 Nbc6 11.Qb3 Qd6 12.c5 Qe6 (better is 12...bc5!? 13.Ne4 Na5 14.Nd6 Nb3 15.Nb7 Na1 16.Ba1 e4+/–) 13.Qe6+– Rfe8?? (better is 13...fe6 14.b5 Nb4+–) 14.Qb3 1–0. Janek – Hans, internet, 2016.

7.Be2 f6 8.0–0 e4 9.Nfd2 f5 10.Nc3 c6 11.Qb3 d5 12.Rae1 Be6 13.cd5 Nd5 14.Nd5 cd5 15.b5 Nd7 16.a4 b6 17.Ba3 Re8 18.Rc1 Rc8 19.Rc8 Qc8 20.Rc1 Qb7 21.Rc6 Bf7 22.Qc2 Nf6 23.h3 h5 24.Bd6 a6 25.ba6 Qa7 26.Rc7 Qa8 27.Bb5 Rd8 28.Be5 Ne8 29.Rc6 Bf8 30.Rb6 Nd6 31.Nb3 Nc4 32.Rb7 Ne5 33.de5 Rc8 34.Rc7 Rd8 35.Nd4 Be8 36.e6 Bd6 37.Rb7 g5 38.Nf5 Be5 39.Nh6 Kh8 40.Nf7 Bf7 41.ef7 Rc8 42.Qd1 g4 43.hg4 Kg7 44.gh5 Rh8 45.g3 Qc8 46.Qd5 Bf6 47.h6 Rh6 48.f8Q Kg6 0–1. ferminkatcho (1660) – kenshi (1700), internet, 2013.

7.Be2 Bg4 8.de5 Nbc6 9.Qd2 =.

7.e4 Bg4 8.d5 f5 9.Nbd2 fe4 10.Ne4 Bf3 11.gf3 Nf5 12.Qd3 Nh4 13.Be2 Ng2 14.Kd2 Nf4 15.Qc3 Bh6 16.Kd1 Nd7 17.Rg1 Nf6 18.Bd3 Nd3 19.Qd3 Ne4 20.Qe4 Rf4 21.Qd3 Qh4 22.Rg2 (22.Rg4 Rg4 23.fg4 Qg4 24.Qe2 Qg1 25.Kc2 Qh2–+) 22...Raf8 23.Qe2 (23.Rg3–+) 23...Rf3 24.Ke1 Re3 0–1. Wolfram,Frank – Nitsche,Werner, DDR–Cup8 prel37 corr, 1981.

7.de5 Nec6 8.Be2 =.

7.Be2 ed4

8.Bd4 a5 9.Bg7 Kg7 10.b5 Re8 11.0–0 Nd7 12.Nc3 Nc5 13.Na4 Na4 14.Qa4 Nf5 +=.

8.Bd4 Nbc6 9.Bg7 Kg7 10.Qd2 Re8 11.Qc3 f6 12.0–0 Nf5 13.Nbd2 Qe7 14.e4 Nh6 15.c5 dc5 16.bc5 Bg4 17.Rfb1+=.

8.Bd4 Nbc6 9.Bg7 Kg7 10.Qd2 Nf5 11.Qc3 A) 11...f6 12.e4 (12.Nbd2) 12...Nh6 13.0–0 Qe7 14.Nbd2 Bg4 15.b5 Ne5 16.Nd4 Be2 17.Ne2+=; B) 11...Kg8 12.b5 Nb8 13.0–0 Nd7 14.Qd2 Re8 15.Nc3 Nc5 16.Nd5 c6 17.Nb4=; C) 11...Qf6 12.Qf6 Kf6 13.b5 Ne5 14.Nc3 Be6 15.Ne5 de5 16.Bf3 Rab8 17.c5=.

8.Bd4 Nbc6 9.Bg7 Kg7 10.Qd2 f6 11.0–0 Re8 (11...Be6 12.Rd1 (12.Nc3 Ne5 13.Nd4 Bf7 14.c5 dc5 15.bc5 b6 16.Qc2 bc5 17.Nf3=; 12.Qc3 Qe8 13.b5 Ne5 14.Ne5 de5 15.Nd2 c6 16.a4 cb5 17.ab5+=) 12...Re8 13.Nc3 Nb4 14.Rab1 Nbc6 15.Rb7 Na5 16.Rb4 Nec6 17.Ra4+=) 12.Rd1 (12.a4 a5 13.b5 Ne5 14.Nc3 Be6 15.Ne5 fe5 16.Rfd1 Nc8 17.Bf3+=) 12...Be6 (12...Bf5 13.a3 a5 14.b5 Ne5 15.Nc3 Be6 16.Ne5 fe5 17.b6+/–) 13.Nc3 Nb4 (13...Qd7 14.Qb2 Ne5 15.c5 Rad8 16.Ne5 fe5 17.cd6+–) 14.Rab1 Na6 (14...Nbc6 15.Rb7 Na5 16.Rb4 Nec6 17.Ra4+=) 15.Rb7 (15.Nd4 Nc5 16.Rb7 Bf7 17.Rbb1+=) 15...Nc5 16.Nd4 Bd7 (16...Bf7 17.Rbb1+=) 17.Rbb1 Rb8 18.Bf3 a6 19.Ne4 Rb1 20.Rb1 Ne4 21.Be4 c5 22.Ne2 Be6 23.Qc2 Qa5 24.Nf4 Bf7 25.h3 g5 26.Nd5 Nd5 27.Bd5 Bd5 28.cd5 Re7 29.e4 h6 30.f3 Rf7 31.Kh2 Qc7 32.a4 Qa5 33.Rb8 Qc7 34.Qb1 1–0. Reuter,Alfred J – Downham,Simon, IECC, 1999.

8.Bd4 Bd4 9.ed4 Re8 10.0–0 c5 11.a3 a5 12.b5 Nf5 13.Nc3 Nd7 14.Qd2 Nb6 +=.

8.Bd4 Nd7 9.Bg7+= Kg7 10.0–0 Nc6 11.a3 a5 12.Nc3 ab4 13.ab4 Ra1 14.Qa1 f6 15.Nd5 Nde5 16.Nd4 Ne7 17.Nf4 Kf7 (17...Kg8 18.Nde6 Qe8 19.Nf8 Qf8 20.Qc3+–) 18.e4 (18.Qc3 Kg8+/–) 18...c6 (18...f5 19.Nf3 N5c6 20.Ng5 Ke8 21.Nh7 fe4 22.Nf8 Kf8 23.Qf6 Ke8 24.Ng6+–) 19.Rd1+/– g5 (19...f5 20.Nf3 Nf3 21.Bf3 fe4 22.Be4+=) 20.Nh5 (20.Bh5 Kg8 21.Nfe6 Be6 22.Ne6 Qa8+–) 20...N7g6 (20...f5 21.Ng3+/–) 21.Qa7 Kg8 22.Nf5 (22.c5 Qe7+/–) 22...Bf5+= 23.ef5 Nh4 24.Ng3 Qe7 25.Qd4 Rd8 26.f4 Nf7 27.fg5 fg5 28.f6 Qe5 29.Qf2 (29.Qe5 Ne5 30.Ne4 Kf7+/–) 29...Ng6 30.Bh5 ½–½. Kozlowski,Waldemar – Rosikiewicz,Wieslaw, corr 1AMM Poland, 1991.

7.Be2 Nd7

8.0–0 a5 9.b5=.

8.0–0 c6 9.Qc2 ed4 (9...a5 10.b5+=) 10.ed4 (10.Bd4 Bd4 11.Nd4 c5+=) 10...Nf6 11.Nbd2 Bf5 12.Bd3 Bd3 13.Qd3 Nf5 (13...Re8 14.Rae1=) 14.Rfe1 (14.d5 cd5 15.cd5 Qb6+=) 14...d5= 15.c5 a5 (15...Nh5 16.b5=) 16.a3 (16.b5 Qc7+=) 16...Qc7 (16...ab4 17.ab4 Ra1 18.Ra1=) 17.Ne5 (17.b5 Rae8+=) 17...Nd7 (17...ab4 18.ab4 Ra1 19.Ba1=) 18.Nd7 (18.Ndf3 Rfe8=) 18...Qd7 19.Nf3 (19.ba5 Ra5 20.Nf3 Rb8+=) 19...Qc7 (19...ab4 20.ab4 b6 21.Ne5=) 20.Re2 (20.b5 Rae8+=) 20...b6 (20...ab4 21.ab4 Ra1 22.Ba1=) 21.Rc2 (21.cb6 Qb6 22.ba5 Ra5=) 21...b5 (21...ab4 22.ab4 Ra1 23.Ba1=) 22.Bc3 (22.Re2 ab4 23.ab4 Ra1 24.Ba1 Ra8=) 22...ab4 Black gets strong initiative 23.ab4 Black gets strong play along the open a–file 23...Ra1 24.Ba1 Ra8 25.Bc3 (25.Bb2 Qf4=) 25...Qf4+= Now all is on d4 26.g3 (26.Ne5 Ra6=) 26...Qe4 27.Qe4 de4 28.Ne1? (better is 28.Ne5!? Ne7 29.h3–/+) 28...Bd4 (28...Nd4 29.Bd4 Bd4 30.Re2–+) 29.Bd4–/+ Nd4 30.Rd2 Nf3 (30...Rd8 31.Kh1–/+) 31.Nf3 ef3 Threatening mate: Ra1 32.Rd1 (32.h4 Kg7–/+) 32...Ra4 33.Rb1 Kf8 (33...f5 34.h4–/+) 34.Kf1 (34.g4 g5–/+) 34...h5 (34...g5 35.h3–/+) 35.Ke1 (35.h4 f6–/+) 35...g5–+ 36.Kd2 Ra2 37.Ke3 g4 38.Rd1? (38.h3 f5 (worse is 38...gh3 39.Rh1+=) 39.Rh1 Rb2–/+) 38...Kg7 (better is 38...Re2 39.Kd3 Rf2–+) 39.Rd6? (better is 39.Rd2 Rd2 40.Kd2–+) 39...Re2–+ (39...Re2 40.Kd4 Rf2–+) 0–1. Hasler,Ulrich – Brun,F, OV, 1993.

8.0–0+= Nc6 9.b5 Ne7 10.e4+=.

8.0–0+= ed4 9.ed4 (9.Bd4 Re8+=) 9...d5= 10.c5 (10.Re1 dc4 11.Bc4 Re8=) 10...a5 11.Qa4 Nf6 (11...Re8 12.Re1= (worse is 12.ba5 Nc5 13.Qb5 Ne4–/+)) 12.b5 (12.Re1 Re8+=) 12...Bd7 (12...Re8 13.Re1=) 13.Ne5 Be6 (13...Ne4 14.Nd7 Qd7 15.Nc3+=) 14.Re1 (14.Nc3 Re8+=) 14...Nf5 (14...Re8 15.Bc1+=) 15.c6 b6 (15...b6 16.Bd3 Re8+=). Mahony,Michael (2050) – Maiffret,Patrick (2030), SH–2003–0–00003, 2003.

8.0–0 e4 9.Nfd2 f5 10.Nc3 Nf6 11.a4 (11.a3 d5+=) 11...d5 (11...a5 12.b5+=) 12.b5 c6 (12...Be6 13.Qc2+=) 13.Qb3 (13.Ba3 Rf7+=) 13...Be6 14.Ba3 Re8 (14...Rf7 15.Rfb1+=) 15.a5 (15.bc6 bc6 16.Rfb1 f4+=) 15...Rb8 (15...Rc8 16.Rfc1+=) 16.Bc5+/– Nc8 (16...cb5!? 17.Nb5 b6 18.ab6 ab6+=) 17.bc6+– (17.bc6 Qc7 18.cd5 (worse is 18.Nd5 Nd5 19.cd5 bc6+/–) 18...bc6 A) 19.de6?! Rb3 20.Nb3 Nd5= (worse is 20...Re6 21.Bc4 Kf7 22.Be6 Ke6 23.Ne2+/–); B) 19.Nb5 cb5 20.de6+–) 1–0. pcmvr (2530) – rhand (2240), net–chess.com, 2006.

8.0–0 f5 9.Nc3+= e4 10.Ng5 Nc6? (better is 10...Nf6+=) 11.Ne6+– Qe7 (11...Qf6 12.Nf8 Qf8 13.Nd5+–) 12.Nc7 (better is 12.Nf8 Qf8 13.b5+–) 12...Nf6?? (better is 12...Rb8+–) 13.Na8 b6 14.Nb5 Ne8 (14...Bb7 15.Nac7 a6 16.Nd5 Nd5 17.cd5 Nb4 18.Qb3+–) 15.Qb3 Bb7 (15...Qb7 16.c5 Kh8 17.Nac7 Nc7 18.Nd6+–) 16.c5 Kh8 (16...d5 17.Na7! Na7 18.Nb6+–) 17.Nac7! Nc7 (17...dc5 18.Ne6 cd4 19.ed4 Qb4 20.Ng7 Ng7 21.d5 Qb3 22.ab3+–) 18.cd6 Qd7 19.Nc7 f4 (19...Qd6 20.Ne6 Rc8 21.Ng7 Kg7 22.d5 Ne5 23.Rac1+–) 20.Ne6 f3 (20...Rf6 21.d5 Re6 22.de6 Qd6 23.Rad1+–) 21.Bb5 Re8 (21...fg2 22.Rfc1 Rc8 23.d5 Bb2 24.Qb2 Kg8 25.dc6 Bc6 26.Rc6 Rc6 27.Qf6 Rc1 28.Rc1 Qe6 29.Bc4 Qc4 30.Rc4 h5 31.Qg6 Kf8 32.Rc8) 22.d5 (22.Ng7?? Qg4 23.g3 Qh3 24.Qg8 Rg8 25.Bc6 Qg2) 22...Ne5 23.Bd7 (23.Bd7 Nd7 24.Ng7+–) 1–0. Janek – quguqu, internet, 2017.

7.Be2 e4

8.Nfd2+= f5 9.0–0 c5 +=.

8.Nfd2+= f5 9.Nc3 c5 10.bc5 dc5 11.d5 =.

8.Nfd2 f5 9.Nc3 c6 10.0–0 Nd7 11.Qb3 Kh8 12.a4 Nf6 13.Qd1 d5 14.Nb3 dc4 15.Bc4 Nfd5 16.b5 Be6 17.Be2 Nb4 (better is 17...b6!?=) 18.Nc5+/– Qc8 19.Ba3 Ned5 20.Nd5 Nd5 21.bc6 bc6 22.Ba6 Qe8 23.Ne6 Qe6 24.Bf8 Bf8 25.Qb3 Bd6 26.Qb7 Rb8 27.Qa7 f4 28.Rfe1 f3 29.g3 Nb4 30.Rec1 h5? (better is 30...Nd3 31.Bd3 ed3+–) 31.a5 h4 32.Bc4 Qg4 33.Qf7 hg3 34.Qf6 (34.fg3 Bg3 35.Qf6 Kh7 36.hg3 Qg3 37.Kf1 Nd5–+; 34.hg3 Nd5 35.Bd5 Bg3 36.Qf6 Kh7–+) 34...Kh7 35.hg3 Bg3 36.Qf7?? (36.fg3 Nd3) 36...Kh6–+ 37.fg3 Qg3 38.Kf1 Qg2 (38...Nd5 39.Qd5 Rb2 40.Rc2 Rc2 41.Qh5 gh5 42.a6 Qf2) 39.Ke1 Qg1 40.Kd2 Qf2 41.Kd1 Qe3 (41...Nd5 42.Qf4 Nf4 43.Ra2–+) 42.Qf6 (42.Ra3 Qd4 43.Ke1 Nc2 44.Kf1–+) 42...Kh5 (42...Qg1 43.Kd2 Qf2 44.Kd1 Nd5 45.Qh4 Qh4 46.Bd5 Qf2 47.Rc6 Rb2 48.Rg6 Kh5 49.Rh6 Kh6 50.Be4 Qd2) 43.Qe5+– Kg4 44.Be6 (44.Qb8 Qd4 45.Ke1 Qg1 46.Kd2 Qd4 47.Ke1 Qg1 48.Kd2 Qd4 49.Ke1=) 44...Kh4 45.Qh2 Kg5 46.Rc5 Nd5 47.Qd2 (47.Qb8 Qd4 48.Kc2 Qc5 49.Kb1 Qg1 50.Ka2 Qf2 51.Qb2 Nb4 52.Kb3 Qb2 53.Kb2 e3+/–) 47...Qd2 48.Kd2 e3 49.Kd3 Rb3 50.Kc2 Rb5 (50...Rb7+–) 51.Rb5 cb5 52.Bd5 Kf4 53.a6 g5 54.a7 g4 (54...Kg3 55.a8Q e2 56.Rg1 Kh2 57.Qb8 Kg1 58.Qg3 Kf1 59.Qf3 Ke1 60.Qg2 g4 61.Qg1) 55.a8Q Kg3 (55...e2 56.Qb8 Ke3 57.Ra3 Kf2 58.Qh2 Kf1 59.Ra1 e1Q 60.Be4 Qa1 61.Bd3 Ke1 62.Qg1) 56.Qb8 (56.Rg1 Kf4 57.Qf8 Kg5 58.Qg7 Kf5 59.Qg4 Kf6 60.Qe6) 56...Kh3 (56...Kg2 57.Qf4 e2 58.Qg4 Kh2 59.Qf4 Kg2 60.Qf3 Kh2 61.Rh1) 57.Rh1 Kg2 58.Qh2 1–0. Bonetti,Shane – chessfish (1745), ICC, 2002.

8.Nfd2 f5 9.Nc3 Nd7 10.0–0 g5 11.Qb3 Nf6 12.d5 Ng6 13.c5 Qe7 14.Rac1 f4 15.cd6 cd6 16.Nb5 a6 17.Nc7 Rb8 18.Rc2 Ng4 19.Bg7 Qg7 20.Ne6 Be6 21.de6 Nf6 22.e7 Rf7 23.Qe6 Ne7 24.Qd6 (24.Ne4?! Ne4 25.Qe4 d5+=) 24...Rff8 25.Rc7 (25.ef4 gf4 26.Ne4 Nc6+–) 25...Rbd8 26.Qe5 Nfd5 27.Qg7 Kg7 28.Rb7 fe3 29.fe3 Rf1 30.Nf1 Rc8 31.Ba6 Kf6 32.Re7! Ne7 (32...Ne7 33.Bc8 Discovered attack (33.Bc8 Remove defender); 32...Ke7 33.Bc8 Discovered attack (33.Bc8 Remove defender)) 33.Bc8 Nc8 34.Kf2 Ke5 35.Ke2 Kd5 36.Kd2 (36.g4!? Nb6+–) 36...Kc4 37.a3 Kb3 38.b5 Nb6 39.Ng3 Nc4 40.Ke2 Nd6? (40...Ka3 41.Ne4 h6+–) 41.b6 Ka3 42.Ne4! Nb7 (42...Ne4 43.b7 Passed pawn) 43.Ng5 h6 44.Nf7 h5 45.e4 Nc5 (45...Kb4 46.Nd6! Nd8 47.b7+–) 46.Nd6 1–0. Schiefelbusch,Dirk (2135) – Carmesin,Matthias (1855), Sparkassen Open A, Dortmund GER, 2010.

8.Nfd2 f5 9.Nc3 Nd7 (9...Nbc6 10.a3+=) 10.Qb3 Kh8 (10...Nf6 11.0–0+=) 11.a4 (11.0–0 Nf6+=) 11...Nf6 (11...a5+=) 12.0–0–0 (12.a5!?+=) 12...Be6 (12...a5 13.b5+=) 13.h3 (13.h4 a5=) 13...c6 (13...a5 14.b5+=) 14.Rdg1 (14.h4 h5+=) 14...a6 (14...a5 15.b5+=) 15.a5 (15.h4=) 15...b5 (15...d5!?+=) 16.ab6+= Bf7 (16...Rb8 17.Na4 Nc8 18.d5 cd5 19.c5+=) 17.Na4 White prepares c5 17...Qd7 (17...a5 18.Kc2+/–) 18.Qa3 (18.Kd1 Rfb8 19.g4 Nc8 20.gf5 Nb6 21.fg6 hg6+/–) 18...Rfb8 (18...a5 19.ba5 c5+– (19...Ra5? 20.Nc5 Ra3 21.Nd7 Nd7 22.Ba3+–)) 19.c5 (19.g4!?+/–) 19...a5+= 20.ba5 Ra5 21.Bc3 (21.Qb4 Raa8+=) 21...Raa8 22.Kc2 (22.Nc4 Bc4 23.Bc4 Ned5+=) 22...Ned5 (22...f4 23.cd6 Ned5 24.Ra1 fe3 25.fe3 Ne3 26.Kc1–/+) 23.Bb2 (23.cd6? Nc3 24.Qc3 Ra4–+) 23...f4 (23...Kg8 24.Rd1= (24.cd6? Qd8–+)) 24.Nc4+= (24.cd6 Qd8 25.Nc4 Nb6 26.Ncb6 Rb6–+) 24...fe3 (24...dc5 25.dc5 Qe7 26.Ra1+=) 25.fe3 Ne8 (25...dc5!? 26.dc5 Kg8+=) 26.Rf1 Be6 27.Rf2 (27.cd6 Nd6 28.Nd6 Ra4 29.Qa4 Qd6+=) 27...Bh6 (27...dc5 28.dc5 (28.Nc5 Qe7 29.Qb3 Nb6 30.Qb6 Bc4 31.Qc6 Rc8 32.Qe4 Qe4 33.Ne4 Be2 34.Kd2 Bc4–+) 28...Qe7 29.Rhf1+/–) 28.Ra1 (28.h4!?+–) 28...Kg8+/– 29.g4 (29.cd6 Qd8+/–) 29...Ra6 (29...Qd8 30.cd6 Ra4 31.Qa4 Be3 32.Ne3 Ne3 33.Kd2=) 30.cd6 Ra4 (30...Ne3 31.Ne3 Ra4 32.Qa4 Be3+–) 31.Qa4+/– Nd6 32.Qa7 Qd8 33.Kb1 (33.Nd6 Qd6 34.b7 Kg7+/–) 33...Nb5 34.Qa5 Ne3 35.b7 Nc7? (better is 35...Qe8 36.Ne3 Be3 37.Bb5 Bf2+–) 36.Ne3+– Be3 37.Rf1?? (37.Qc3 Bf2 38.d5+–) 37...Rb7–+ 38.Qa3 (38.Rd1 Qb8 39.Qc3–+) 38...Bd5 (better is 38...Bd4 39.Rd1 Qd5 (39...Rb2 40.Qb2 c5 41.Ra7+–) 40.Rd4 Qd4–+) 39.Qe3+– Rb3 (39...Qb8 40.Qd2+–) 40.Qd2 Qb8 (40...Rh3 41.Qf4 Qb8 42.Kc1+–) 41.Qc2 (41.Kc1 Ne6+–) 41...Nb5 (41...Rh3 42.Ra5 Ne6 43.Bc4+–) 42.Kc1 Rh3 43.Bc4 (better is 43.Qc5 Nd6 44.Qa7 Qa7 45.Ra7+–) 43...Rh2 (43...Nc7+–) 44.Bd5 cd5 45.Qc5 (better is 45.Qc6 Kg7 46.Ra8+–) 45...Nc7 (45...Kg7 46.Ra6 Kh6+–) 46.Ba3 Ne6 47.Qd5 Qc8 48.Bc5 1–0. Bigalke,Andre (2095) – Visweswaran,K (2335), 6th Wichern Open, Hamburg GER, 2001.

7.Be2 Nf5

8.0–0 ed4 9.ed4 c5 10.b5 (10.a3 Nc6=) 10...Nd7 (10...Qf6 11.Re1=) 11.Bc3 cd4 12.Nd4 Nf6 13.Nf5 (13.Bd3 Nd4 14.Bd4 Re8+=) 13...Bf5= 14.g4 (14.Bd3 Bd3 15.Qd3 d5+=) 14...Be6 15.Nd2 d5 16.h3 (16.g5 Nd7 17.Bg7 Qg5 18.Kh1 Kg7+=) 16...dc4 17.Rc1 (17.Bc4 Rc8 18.Be6 Rc3–+ (worse is 18...fe6 19.Rc1+=)) 17...Nd5 (better is 17...Qb6!?–/+) 18.Bg7= Kg7 19.Bc4 Nf4 20.Qf3?? (20.Kh2 Qd6 21.Nb3 Nd3 22.f4 Bc4 23.Rc4 Rfd8+/–) 20...Qd2 21.Rfd1 Nh3 22.Qh3 Qf4 23.Be6 fe6 24.Rd7 Rf7 25.Rf7 Qf7 26.Qh2 Re8 (26...Rd8 27.Qe5 Kf8 28.Qc5 Kg8 29.Qc7–/+) 27.Qd6 (27.Rc7 Re7 28.Qe5 Kg8 29.Rc8 Re8 30.Re8 Qe8=) 27...Re7 (27...e5 28.Rc7 h5 29.Rf7 Kf7 30.Qd5 Re6 31.Qf3 Ke8 32.Qb7+–) 28.g5 (28.Qd4 e5 29.Qa7 Qf4–/+) 28...e5 29.Rc8 Qe6 (better is 29...h5!?+=) 30.Qe6+/– Re6 31.Rc7 Kf8 32.Rb7 Re7 33.Rb8 Kg7 34.a4 Kf7 (34...h5 35.b6 ab6 36.Rb6=) 35.a5 Ke6 36.a6 Rd7 37.Rb7 ½–½. Sokolik,Bogdan – Hoszowski,Piotr, corr 1AMM Poland, 1991.

8.0–0 Qe7 9.Nc3+= c6 10.Qd2 (10.d5 Bd7+=) 10...Na6 (10...ed4 11.Nd4 Nd4 12.ed4=) 11.b5 Nc7 12.de5 de5 13.Ne4 (13.bc6 bc6 14.Rfd1 Rb8+=) 13...Rd8 14.Qc3 Now all is on e5 14...f6 (14...cb5 15.cb5 (15.Ne5? b4 16.Qc2 Be5 17.Be5 Qe5–+) 15...Be6 16.Ba3= (worse is 16.Ne5 Rd5 17.f4 Nb5+=)) 15.Ba3 Qf7 16.bc6 (16.Rfd1 Bd7 17.Nc5 cb5 18.Nb7 Rdb8+/–) 16...bc6 17.g4 (17.Rfd1 Be6+=) 17...Ne7 (17...Nh6 18.g5 fg5 19.Nfg5+= (19.Ne5? Qf5 20.Bd6 Ne8–+)) 18.Qa5 White terminates the opponent with strong threats 18...Ne6 19.g5 f5 20.Nf6 Bf6 21.gf6 Qf6 22.Qe5 Kf7 23.Rad1 Bb7 24.Rd8 Rd8 25.Rb1 Ba8 (25...Bc8 26.Qa5 Ke8 27.Qa7+/–) 26.Qa5 Rd7?? (better is 26...f4 27.Qa7 c5 28.Bc5 fe3 29.Be7 ef2 30.Kf2 Qe7 31.Ne5 Ke8 32.Qe7 Ke7+/–) 27.Ne5+– (27.Ne5 Ke8 28.Nd7 Kd7 29.Rb8+–) 1–0. Machete (2305) – grapsch (1930), ICC, 2003.

8.Na3 ed4 9.ed4 (9.Nd4? c5–+) 9...c5 (9...Re8 10.0–0 c5 11.Nc2 Nc6 12.a3 Ncd4 13.Ncd4 Nd4 14.Nd4 cd4=) 10.Nc2+= Nc6 11.b5 Ncd4 12.Ncd4 cd4 13.Rb1 a6 14.0–0 ab5–/+.

8.Na3 Nd7 9.0–0 a5 10.b5 Re8 11.Qc2 e4 12.Nd2 Qg5 13.Rae1 Nf6 14.d5 Nh4=.

8.Na3 Nd7 9.0–0 c6 10.Nc2 e4 11.Nd2 Re8 12.f3 Qg5 (12...Bh6!? 13.f4 Bg7=) 13.Ne4+/– (worse is 13.fe4 Ne3 14.Ne3 Qe3 15.Kh1 Bh6+=) 13...Qe7 14.Bd3 (14.g4 d5 15.gf5 de4 16.fe4 Qg5 17.Kh1 Re4+/–) 14...d5+= 15.cd5 cd5 16.Nf2 Ne3 17.Ne3 Qe3 18.Re1 Qe1 19.Qe1 Re1 20.Re1 Nf6 ½–½. Rosner,Dirk – Lehmitz,Gerd, corr, 1989.

8.Na3 Nd7 9.0–0 Re8 10.de5 Ne5 11.Ne5 de5 12.Qd8 Rd8 13.Rfd1 Bd7 14.Bf3 c6=.

8.Na3 Nd7 9.Nc2 Re8 (9...ed4 10.Bd4 Nd4 11.ed4 Nb6 12.0–0 Be6 13.Ne3 a5 14.a3 f5=) 10.b5 (10.0–0 a5 11.a3 e4 12.Nd2 Nb6 13.Qc1 Na4 14.Nb3 Nb2=) 10...ed4 (10...a6 11.ba6 Ra6 12.c5 Ra4 13.de5 de5 14.c6 bc6+=) 11.Ncd4 Nc5 (11...Nf6 12.0–0 a6 13.a4 Qe7 14.Bd3 Ne4=) 12.0–0 Bd7 (12...Qe7 13.a4 Qe4 14.a5 Bd7=) 13.Qd2 (13.a4 Qe7 14.a5 a6=) 13...a6 (13...Na4 14.Bc1 a6=) 14.a4 (14.Nf5 Bf5=) 14...Nd4 15.Nd4 (15.ed4? Nb3 16.Qc2 Na1 17.Ra1 ab5 18.ab5 Ra1 19.Ba1 Qe7–+) 15...Qg5 16.Rfd1 Ne4 17.Qe1 Qh6 18.Bd3 ½–½. Rosner,Dirk – Guntowsky,Frank, corr, 1997.

8.Na3 Qe7 9.0–0 Nc6 10.b5 Nb8 11.Nc2 e4 12.Nd2 a5 13.a4 Re8 14.Re1 Bd7 (14...Qg5 15.Bf1=) 15.Rb1 Nh4 16.f3 Qg5 The mate threat is Qxg2 17.Bf1 Nf3 18.Nf3 ef3 19.Qf3 Bf5 20.Rbc1 (better is 20.e4!? Bg4 21.Qg3+/–) 20...Be4= 21.Qh3 ½–½. Rosner,Dirk – Steinmann,Joachim, corr, 1989.

8.b5 ed4 9.Nd4 c5 10.bc6 Nd4 11.ed4 Nc6 12.Bc3+=.

8.b5 ed4 9.Nd4 Nd7 10.0–0 (10.Nc3 Nd4 11.ed4 Re8 12.0–0 a6 13.Re1 ab5 14.Nb5 Nb6 15.a4 c6 16.a5=; 10.Nd2 Re8 11.0–0 Nc5 12.a4 Qe7 13.N2f3 Qe4 14.a5 Bd7 15.Qb1 Qb1 16.Rfb1=) 10...Nc5 (10...Re8 11.Bf3 Ne5 12.Nd2 Nf3 13.Qf3 Qg5 14.Ne4 Qh4 15.Nf5 Bf5 16.Bg7=) 11.a4 (11.Nc3 a6 12.a4 Nh4 13.Nd5 Re8 14.Ra3 h6 15.Qa1 ab5 16.Nb5+–) 11...Qe8 (11...Nh4 12.g3 Qg5 13.Nd2 Bh3 14.Re1 Ng2 15.N4f3 Qe7 16.Bg7=) 12.Qc2?? (better is 12.a5= Ne3 13.fe3 Qe3 14.Kh1 Ne4 15.Qd3 Nf2 16.Rf2=) 12...Ne3!–+ 13.fe3 Qe3 14.Kh1 Bd4 15.Bd4 Qd4 16.Qc3 Qe5 17.Qe5 de5 18.Nd2 (18.Nc3 f5–+) 18...f5 19.h3 (19.Kg1 e4–+) 19...b6 20.Kh2 Bb7 21.a5 Rad8 22.Nf3 Bf3 23.Bf3 e4 24.Be2 Nb3 25.ab6 Na1 26.bc7 Rd7 (26...Rd2 27.c5 Nc2 28.b6 ab6 29.cb6=) 27.Ra1 Rc7 28.Ra6 Rd8 29.b6 (29.Kg1 f4–+) 29...ab6 30.Rb6 Rd2 31.Rb8 Kg7 32.Bf1 Re7 33.c5 e3 34.Bc4 (34.Kg3 e2 35.Be2 Rde2–+) 34...e2 (34...e2 35.Be2 Ree2–+) 0–1. Zimin – Apasov, corr Soviet Union, 1967.

8.b5 ed4 9.Nd4 Qg5 10.0–0 Re8 11.Qd2 Nh4 12.g3 Nf5 13.Nf3 Qh6 14.Bg7 Qg7 15.Nc3 Ne7 16.Nd4+=.

8.b5 ed4 9.Nd4 Nh4 10.0–0 a6 11.Bd3 Re8 12.Nc3 ab5 13.cb5 Qg5 14.g3 Bh3 15.f4 Qc5 16.gh4+=.

8.b5 Re8 9.de5 Nd7 10.0–0 Ne5 11.Ne5 de5 12.Nd2 Be6 13.Qc2 Qe7 14.Nf3 e4 15.Nd2 Bb2 16.Qb2 +=.

8.b5 Nh4 9.0–0+= c6 (9...Nf3 10.Bf3 Qh4 11.Qd3+=) 10.a4 a5 (10...Bf5 11.Nbd2 Nf3 12.Nf3+=) 11.Nbd2 Nf3 12.Nf3 e4 13.Nd2 d5 (13...Re8 14.Qc2 Qh4 15.f3+=) 14.Qb3 (14.bc6 bc6 15.Ba3 Re8+=) 14...Qg5 15.f4 (15.f3 Bh3 16.Rf2 Bf5+/–) 15...Qd8 (15...Qf5 16.cd5 cd5 17.Ba3+=) 16.Rfc1 (16.Rab1 Bf5+=) 16...Be6 17.Ba3 (17.bc6 Nc6 18.Qb7 Rb8 19.Qc6 Rb2+=) 17...Re8 18.bc6 (18.Rab1 Qf6+=) 18...Nc6 19.Rab1 dc4 (19...Rb8 20.Bc5+=) 20.Nc4 Rc8 (20...Rb8 21.Bc5+=) 21.Qd1 (21.Bc5+/–) 21...Bf8 (better is 21...Bc4!? 22.Bc4 Qd7+=) 22.Bf8+/– Rf8 23.Nb6 (better is 23.Rb7!? Nb4 24.Ne5+/–) 23...Rc7+= 24.d5 Nb4 25.de6 Rc1 26.ef7 (worse is 26.Rc1 Qb6 27.ef7 Rf7+=; 26.Qc1?! Qb6 27.ef7 Rf7+–) 26...Kf7 (better is 26...Kg7!? 27.Qc1 Qb6 28.Qc3 Qf6 29.Qf6 Kf6+/–) 27.Rc1+– (27.Rc1 Qb6 28.Qb3 Kg7 29.Qc3 Rf6 30.Rb1+=; 27.Qc1?! Qb6 28.Qc4 Qe6 29.Qc7 Kg8+/–) 1–0. Pinus,Yury Yakovlevich – Makarov,Y, corr Tch10–SU, 1994.

8.de5 Nd7 9.0–0 a5 10.Qd2 Ne5 11.ba5 Be6 12.c5 Qe7 13.cd6 Qd6 14.Ne5 Be5=.

8.de5 Nd7 9.0–0 Ne5 10.Nc3 a5 11.a3 Be6 12.Ne5 de5 13.Qb3 ab4 14.ab4 Qh4 15.Nd5=.

8.de5 Nd7 9.0–0 Ne5 10.Nc3 a5 11.a3 Be6 12.Ne5 de5 13.Ne4 Nd6 14.Nd6 Qd6=.

8.de5 Nd7 9.Qc2 Ne5 10.0–0 a5 11.b5 Be6 12.Rd1 Qc8 13.Nbd2 a4 14.c5 a3+=.

8.de5 Nd7 9.Nc3 Ne5 10.0–0 a5 11.a3 Be6 12.Ne5 de5 13.Qb3 ab4 14.ab4 Qh4 15.Nb5=.

8.de5 Nd7 9.Qd2 Ne5 10.0–0 Be6 11.Na3 Nh4 12.Nd4 a5 13.ba5 Bh3 14.f4 Bg2 15.Rf2=.

8.de5 Re8 9.0–0 (9.Bc3!?+/–) 9...Nc6+= 10.e4 Nfe7 11.Qb3 de5 12.Rd1 Nd4 13.Nd4 ed4 14.f4 c5 15.bc5 Nc6 16.Nd2 Qe7 17.e5 f6 (worse is 17...Qc5 18.Ne4 Qe7 19.Nd6+/–) 18.Ne4 fe5 19.Nd6 Rf8 20.fe5 Be5 21.Bf3 Qg7 (21...Qc7!?=) 22.Bd5+= Kh8 23.Rf1 Bf5 24.Rfe1 (better is 24.Qb7!? Qb7 25.Nb7+/–) 24...Rab8= 25.Rad1 h6 (25...Bg4!? 26.Rb1 Qe7=) 26.Re5+= (26.Nf5?! Rf5 27.Qd3 Qc7=) 26...Qe5 (26...Ne5 27.g4) 27.Nb7?? (27.Bc6!? bc6 28.Bd4 Qd4 29.Rd4 Rb3 30.ab3+/–) 27...Kh7 (better is 27...Qe2 28.Bf3 Bc2 29.Be2 Bb3 30.ab3 Rb7+=) 28.Bc6+– Bg4 29.Bd4 Qc7 30.Re1 Rf7 (30...Bc8 31.Qg3 Rb7 32.Bb7 Qb7+–) 31.Bd5 Rb7 (31...Re7 32.Re7 Qe7 33.Qg3+–) 32.Re8 g5 33.Be4 Bf5 (33...Rf5 34.Qb7 Qb7 35.Bb7+–) 34.Bf5 (34.Qh3 Qe5 35.Be5 Rb1 36.Bb1 Kg6 37.Rg8 Kh7 38.Rh8 Kg6 39.Qh6) 34...Rf5 35.Qd3 Qf4 Threatening mate: Qc1 36.Be3 (36.Be3 Qf1 37.Qf1 Rf1 38.Kf1+–) 1–0. Grehl,Siegfried – Stele, corr DDR–M–872, 1989.

8.de5 Re8 9.Bc3!? +/–.

8.0–0 Nd7

9.Na3 c6 10.Nc2 e4 11.Nd2 d5 12.a4 A) 12...Re8 13.cd5 (13.a5 Qh4 14.cd5 cd5 15.b5 Nf6 16.Ba3 Qg5) 13...cd5 14.a5 Qg5 15.f4 Qf6 16.Rc1 b6; B) 12...Nf6 B1) 13.b5 cb5 (13...Re8 14.c5 Be6 15.Nb4 Qc7 16.Bc3 Nh6) 14.cb5 Re8 15.Ba3 Be6 16.Rc1 Rc8; B2) 13.c5 Be6 (13...Qc7 14.b5 Be6 15.Bc3 Nd7 16.Bb4 Rfd8; 13...Re8 14.Rb1 Be6 15.b5 Qa5 16.Ba1 Rac8; 13...Qe7 14.Rb1 Be6 15.b5 cb5 16.ab5 Rfc8; 13...Rb8 14.b5 Be6 15.Nb4 Qc7 16.Qc2 Ne7; 13...Bd7 14.b5 cb5 15.ab5 Qe8 16.g4 Ne7) 14.Rb1 Qc7 15.b5 Qa5 16.Ba1 Rfb8; B3) 13.cd5 Qd5 14.Bc4 Qd7 15.f3 Nd6 16.Bb3 Qe7; C) 12...a5 C1) 13.b5 Re8 (13...cb5 14.ab5 dc4 15.Na3 Re8 16.Nac4 Nf6) 14.Bc3 cb5 15.ab5 Nd6 16.c5 Nf5; C2) 13.cd5 cd5 14.Ba3 Re8 15.ba5 Ra5 16.Bb4 Ra7; D) 12...Qe7 13.cd5 (13.a5 dc4 14.Nc4 Qg5 15.f3 Nf6 16.a6 b5) 13...cd5 14.a5 Qg5 15.Ra3 Nf6 16.f4 Qh4; E) 12...Nh4 E1) 13.Rc1 Qg5 (13...a5 14.b5 Qg5 15.Ne1 Nb6 16.cd5 cd5; 13...Re8 14.cd5 cd5 15.Ne1 Qg5 16.Rc3 Nf6) 14.g3 Nf5 15.cd5 cd5 16.a5 Rd8; E2) 13.Ne1 Qg5 (13...Nf5 14.cd5 cd5 15.Rc1 h6 16.Qb3 Qg5; 13...Nf6 14.b5 cb5 15.cb5 Re8 16.Ba3 Nf5; 13...Re8 14.cd5 cd5 15.Rc1 Nf5 16.Qb3 Nf6) 14.cd5 cd5 15.Rc1 Nf6 16.Kh1 Nf5; E3) 13.cd5 Qg5 14.Ne1 cd5 15.Ra3 Re8 16.Rc3 Nf6; E4) 13.f3 Qg5 14.Rf2 ef3 15.Bf3 Nf3 16.Qf3 Nf6; F) 12...Qg5= 13.a5 Nf6 14.f4 Qh4 15.b5 cb5 16.cb5 Be6.

9.Na3 c6 10.Nc2 e4 11.Nd2 d5 12.cd5 cd5 A) 13.b5 Qg5 (13...a6 14.Nb4 Nb6 15.ba6 ba6 16.Qb3 Bb7) 14.Rc1 a6 15.ba6 ba6 16.Kh1 Rb8; B) 13.a4 Qg5 14.Ra3 Nf6 15.f3 Be6 16.fe4 de4; C) 13.a3 Qg5 14.Rc1 Nb6 15.Ne1 Bd7 16.Nc2 Rfc8; D) 13.Ba3 Re8 14.Rc1 Qg5 15.b5 a6 16.ba6 ba6; E) 13.Rc1 Qg5 14.b5 Rd8 15.Ba3 a6 16.ba6 b6.

9.Na3 c6 10.Nc2 e4 11.Nd2 d5 12.f3 ef3 (12...Qg5 13.f4 Qf6 (13...Qh4 14.Qe1 Qe1 15.Rae1 Nb6 16.Rb1 dc4) 14.g4= (14.Rc1 Nb6 15.g4 Nd6 16.c5 Ndc4) 14...Ne7 15.cd5 cd5 16.g5 Qe6) 13.Nf3 (13.Rf3 Re8= (13...Qe7 14.Bd3 Nf6 15.b5 Nd6 16.Ba3 Re8; 13...Nf6 14.cd5 cd5 15.Rc1 Re8 16.Qe1 Qe7; 13...Qg5 14.e4 de4 15.Ne4 Qh4 16.Bd3 Nb6) 14.cd5 cd5 15.Rc1 Bh6 16.Nf1 Nb6; 13.Bf3 Nb6 (13...Nf6 14.e4 de4 15.Ne4 Ne4 16.Be4 Be6) 14.cd5 Nd5 15.Bd5 cd5 16.Qf3 Nh4) 13...Nf6 (13...Re8 14.Bc1= (14.cd5 cd5 15.Qd2 Nf6 16.Ne5 Ne4) 14...Nf6 15.Ne5 Ne4 16.cd5 cd5; 13...Bh6 14.Bc1 Re8 15.cd5 cd5 16.Bd3 Ne3; 13...Qe7 14.Bc1 Re8 15.cd5 cd5 16.Bd3 Nb6) 14.a4 (14.Bd3 Ng4 15.Re1 dc4 (15...Nd6 16.cd5 cd5) 16.Bc4 Nd6=; 14.Ne5 Be6 15.Bd3 Re8 16.Qe2 dc4) 14...Re8 The backward pawn on e3 becomes a target (14...Ng4 15.Bc1+= Re8 16.cd5 cd5) 15.Ne5= Bh6 (15...Be6 16.c5= Ne4) 16.Ra3 (16.Qd3 Nd6) 16...Ne4 (16...Be6 17.a5 dc4 18.Bc4 Bc4 19.Nc4=) 17.Bc1 (17.g4 f6 18.gf5 fe5 19.cd5 cd5+=) 17...f6 18.Ng4 Bg7 19.a5 (19.Nf2 Nf2 20.Rf2 Nd6+=) 19...a6 (19...Nfd6 20.cd5 Bg4 21.Bg4 cd5 22.a6+=) 20.c5= Nh6 (20...Qe7 21.Nf2=) 21.Ne1 (21.Nf2 Bf5=) 21...Ng4 (21...Bg4 22.Bg4 Ng4 23.Qg4+=) 22.Bg4 Bg4 23.Qg4 f5 24.Qd1 Re6 25.Nf3 Qe7 26.Bd2 (26.Bb2 Re8+=) 26...Bh6 (26...Nd2 27.Qd2 Re8 28.Kf2+=) 27.Ne5 (27.Be1 Ng5+=) 27...Re8 28.Bc1 Ng5 29.g4 Nf7 (29...Bg7 30.gf5 gf5 31.Rf5 Be5 32.de5 Re5 33.Re5 Qe5 34.Ra2+=) 30.Nf7 (30.gf5 gf5 31.Nf7 Qf7+=) 30...Qf7 31.Qf3 (31.gf5 gf5 32.Qf3 Qe7=) 31...Rf8 (31...Rf6 32.h4 Bg7 33.g5–/+) 32.Qg3+= Kh8 (32...Qe7 33.gf5 Ref6 34.Qh4 gf5 35.Qf2+=) 33.Ra2 (33.g5 Bg7=) 33...Re4 (33...Qe7 34.Re2+=) 34.Raf2 (34.gf5 gf5 35.Rg2 Qg7=) 34...Qe7 35.gf5 gf5 36.Qh3? (better is 36.Qd6 Rg8 37.Rg2 Rg2 38.Kg2 Rg4 39.Kf2 Qh4 40.Kf3=) 36...Be3–+ 37.Be3 Re3 38.Rf3 (38.Qh6 Re4 39.Qd6 Rg8 40.Kh1 Qg7–+) 38...Rg8 (38...Rf3 39.Qf3 Qg7 40.Kf2 Qd4 41.Qe3 Qe3 42.Ke3–+) 39.Rg3 (39.Kh1 Rf3 40.Qf3 Rg5–/+) 39...Reg3 (39...Rgg3 40.hg3 Rd3 41.Qh6 Rg3 42.Kf2–+) 40.hg3 Qe3 (40...Qe3 41.Kh2 Qd2 42.Qg2 Qb4–+) 0–1. Wachsmuth,Dietrich – Ullrich,Jurgen, corr DDR–ch M814, 1987.

9.Nc3 a5 A) 10.a3 Re8 (10...ab4 11.ab4 Ra1 12.Ba1 Re8 13.d5 Nf6 14.e4 Nd4 15.Bb2 Nh5 16.Nd4 ed4 17.Nb5=) 11.Qd3 (11.de5 Ne5 12.Qc2 Nf3 13.Bf3 Nh4 14.Bd5 Bf5 15.e4 Bh3 16.e5 Bf5 17.Qd2–/+) 11...ed4 12.ed4 c5 13.bc5 dc5 14.dc5 Nc5 15.Qd8 Rd8 16.Rfd1 Be6 17.Rab1=; B) 10.b5 Re8 11.Rb1 (11.a3; 11.Qd3) 11...ed4 12.ed4 Nb6 13.Re1 Nh4 14.c5 Nf3 15.Bf3 Re1 16.Qe1 Nc4 17.c6=.

9.Nc3 b6 10.a3 Re8 11.Re1 (11.d5 e4 12.Nd2 a5 13.Qc2 Nf6 14.Rfb1 Qe7 15.ba5 Ra5 16.Nb3 Ra8 17.Nb5=; 11.Rc1 c5 12.dc5 dc5 13.e4 Nd4 14.Nd5 f5 15.ef5 gf5 16.Nd4 ed4 17.Bh5+=) 11...a5 12.b5 Ra7 13.de5 Ne5 14.Qd2 Nh4 15.Ne5 Qg5 16.g3 de5 17.Red1+=.

9.Nc3 b6 10.b5 Bb7 (10...a6 11.Nd5 ab5 12.cb5 Bb7 13.Bc4 Re8 14.Rc1 e4 15.Nd2 Nf6 16.Qb3 Bd5 17.Bd5+=; 10...Re8 11.Nd5 a6 12.de5 de5 13.Qc2 Bb7 14.ba6 Ba6 15.Rfd1 Nd6 16.Rab1 Bc8 17.Ba1=) 11.d5 (11.Qd2 e4 12.Ne1 a6 13.f3 Qg5 14.Bc1 Nf6 15.fe4 Ne4 16.Ne4 Be4 17.Nf3=) 11...Nc5 (11...a6 12.Qc2 Nc5 13.Rfb1 Nh4 14.Nh4 Qh4 15.a4 Bc8 16.g3 Qf6 17.e4=) 12.Qc2 (12.Re1 a6 13.Qd2 e4 14.Nd4 Qg5 15.Nf5 Qf5 16.Reb1 Bc8 17.ba6=) 12...a6 13.a4 (13.Rfd1 Nh4 14.Ne1 Qg5 15.Ba3 ab5 16.Bc5 bc5 17.Nb5+=) 13...a5 (13...e4 14.Nd2 Qh4 15.Rfb1 Rfe8 16.ba6 Ra6 17.a5+=) 14.Rfe1 (14.Ne4 Ne4 15.Qe4 Bc8+= 16.Rad1 Re8 17.Rfe1+=) 14...Re8 (14...e4 15.Nd2 Re8 16.Ba3 (16.Reb1= Qg5 17.Ra3=) 16...Qg5 17.Bf1+=) 15.Nd2 (15.Ne4 Ne4 (15...Bc8 16.Nc5 dc5 17.Nd2+=) 16.Qe4 Bc8+= 17.Rac1+=) 15...Bc8 (15...e4 16.Reb1 (16.Nb3 Nb3 17.Qb3=) 16...Qg5 17.Bf1+= (worse is 17.Nde4 Ne4 18.Ne4 Ne3 19.fe3 Qe3 20.Nf2 Qe2 21.Qe2 Re2 22.Bg7 Kg7+=; 17.Ra3+=)) 16.Nde4 (16.Rad1 e4 17.Ba3+=) 16...Ne4 17.Ne4 Ne7 18.Kh1 Bf5 19.g4 Be4 20.Qe4 Rf8 21.f4 f5 22.gf5 Nf5 23.fe5 Be5 24.Be5 Re8 25.Bg4 Re5 26.Qf3 (26.Qd3 Qe7=) 26...Qg5 27.e4 Nd4 28.Qg2 Kg7 29.Rad1 (29.Rf1 Rae8 30.Rae1 Qh4+=) 29...Nb3–/+ 30.Rd3 Nc5 31.Ra3 Rae8 32.Bf3 Qf4 33.Rf1 Ne4 34.Bg4 Qg5 35.Raf3 R8e7 36.Rf4 Nc5 37.Qf3 Re3 (37...Na4 38.Rf7 Kh6 39.Qh3 Qh5 40.Bh5 Rh5 41.Qg4 (41.Re7?! Rh3 42.Rc7 Kg5+/–) 41...Re8 42.Qf4 Rg5 43.h4 Ree5 44.Rg1 Rd5 45.hg5 Rg5 46.Qg5) 38.Qd1 Qe5 39.Qd2 Re1 (39...Re4 40.Kg1–+) 40.Rf7? (better is 40.Qf2–/+) 40...Rf7–+ 41.Re1 Qf6 (41...Ne4 42.Kg2 Nd2 43.Re5 de5 44.c5 bc5 45.h3–+) 42.Bd1 Ne4 43.Qe3 Nf2 44.Kg1? (better is 44.Kg2 Nd3! 45.Rg1–+) 44...Nh3 (better is 44...Nd3!–+) 45.Kh1 (better is 45.Kg2 Nf4 46.Kh1–/+) 45...Nf2 46.Kg1 Nd1?? (better is 46...Nd3! 47.Kg2 Ne1 48.Qe1 Qg5 49.Kh1 Qf4–+) 47.Rd1–/+ Qf4 48.Qe2 Qg5 49.Kh1 Rf4 50.Rf1 (50.Re1 Qe5! 51.Qe5 de5 52.Re5 Rc4 53.Re7 Kh6–/+) 50...Rf1 51.Qf1 Qf5 (51...Qd2!?–+) 52.Qe2–/+ Qe5?? (52...Kf6 53.Kg2–/+) 53.Qg4?? (better is 53.Qe5!? de5 54.c5+–) 53...Qf5 54.Qe2 Kf6 55.Kg2 Qg5 56.Kh3 (56.Kh1 Qe5 57.Qf3 Kg5–/+) 56...Qh5 57.Qh5 gh5 ½–½. Schirmer,Michael – Loots,Friedhelm, corr BdF–Jub J2–01, 1985.

9.Nc3 b6 10.Qd3 ed4 11.Nd4 (11.ed4 c5 12.dc5 dc5 13.a3 Re8 14.Rfe1 Bb7 15.Rad1 cb4 16.ab4 Nf6 17.Qb1+=) 11...Ne5 12.Qd2 Re8 13.Rfd1 Bd7 14.b5 a6 15.h3 ab5 16.cb5 Bc8 17.Rdc1+=.

9.Nc3 ed4 10.ed4 c6 11.Qd2 Bh6 (11...Qb6 12.Na4 Qa6 13.Nc3+=) 12.Qc2= Qb6 13.a3 Nd4 (13...Re8 14.Na4 Qc7 15.Bd3+=) 14.Nd4= Qd4 15.Ne4 White fights for the Initiative 15...Qb6 16.Nd6 Bg7 (16...Rd8 17.c5 (17.Nc8?! Rac8 18.c5 Qc7+/–) 17...Qc7 18.Qc3+–) 17.Bg7 Kg7 18.Qc3 f6 19.Bg4 (19.c5 Qc7+–) 19...Qc7 (19...Rd8 20.Rae1 Kg8 21.Re7+– (21.Nc8 Rac8 22.Re7 Rc7+/–)) 20.Rad1 Ne5 (better is 20...Rd8!?+/–) 21.Bc8+– (21.Nc8?! Ng4 22.Nd6 Rad8+/–) 21...Rfc8 22.Nc8 Rc8 23.f4 Ng4 24.Qd3 White intends f5 24...h5 (24...Rf8 25.Qg3 f5 26.Rfe1+–) 25.h3 Nh6 26.Qd7 (26.Rfe1 h4+–) 26...Nf7 27.f5 (27.f5 Qd7 28.Rd7+–) 1–0. Mitrus,Cezary – Frysiak,Adam, corr 1AMM Poland, 1991.

9.Nc3 ed4 10.Nd4 Ne5 11.Re1 (11.Nd5; 11.Nb3) 11...Be6 12.Qb3 Qh4 13.Nd5 Nd4 14.ed4 Nc6 15.g3 Qd8 16.Rad1 Bd5 17.cd5+=.

9.Nc3 Re8 10.a3 A) 10...ed4 11.ed4 (11.Nd4 Nd4 12.ed4 c6 13.d5 Nb6 14.Qd2 Qh4 15.Rae1 Bg4 16.Bd3 Bf5 17.dc6+=) 11...a5 12.Re1 ab4 13.ab4 Ra1 14.Ba1 c6 15.b5 Qf6 16.bc6 bc6 17.d5=; B) 10...a5 11.Qd3 (11.de5 Ne5 12.Qc2 Nf3 13.Bf3 Nh4 14.Bd5 Bf5 15.e4 Bh3 16.e5 Bf5 17.Qd2–/+) 11...ed4 12.ed4 c5 13.bc5 dc5 14.dc5 Nc5 15.Qd8 Rd8 16.Rfd1 Be6 17.Rab1=.

9.Nc3 Re8 10.d5 a5 11.a3 c5 12.dc6 bc6 13.b5 e4 (13...Qb6 14.Rb1+=) 14.bc6+/– Nc5 15.Nd4 Ne7 (15...Nd4 16.ed4 Rb8 17.Rb1+/–) 16.Ncb5 (16.Nd5 Rb8 17.c7 Rb2 18.cd8Q Rd8 19.Ne7 Kh8+–) 16...Qb6 17.Rb1 Nc6 18.Nd6 Rd8 19.Ba1 Qc7 20.N4b5 Qd7 (20...Qe7 21.Bg7 Kg7 22.Qd5+– (22.Nc8?! Rac8 23.Nd4 Nd4 24.ed4 Ne6=)) 21.Bg7 (21.Nc8?! Rac8 22.Qd7 Rd7 (22...Nd7? 23.Nd6+–) 23.Bg7 Kg7+/–) 21...Kg7 22.Qc2 (22.Qd5 Nb7 23.Nc8 Rac8 24.Qe4 Nc5+–) 22...f5 (22...Qe6 23.Nc7 Qd6 24.Qc3 Qe5 25.Qe5 Ne5 26.Na8+–) 23.Rfd1 (23.Qc3 Kg8+–) 23...Qe7 (23...Qe6 24.Nc7 Qe7 25.Nde8 Re8 26.Na8+–) 24.Rd5 Nb7 25.Qb2 Kh6 26.Nb7 (26.Rbd1 Rb8 27.Nc8 Rbc8 28.Rd8 Rd8 29.Rd8 Qd8+–) 26...Bb7 27.Rd8 Rd8 28.Nd4 Rd7 29.Rd1 Qd8 30.Nf5! (30.Nf5 Kg5 31.Rd7 Qd7 32.Ng3+–) 1–0. Hoszowski,Piotr – Frysiak,Adam, corr 1AMM Poland, 1992.

9.Nbd2 ed4 10.ed4 Nb6 (10...c5 11.bc5 dc5 12.Ne4=) 11.Qc2 Bd7 12.a4 a5 13.b5 d5 14.c5 Nc8 15.Rfe1 (15.Rae1 Re8+=) 15...Be6 (15...Re8 16.Bd3+=) 16.Bd3 (16.c6 Rb8+/–) 16...Nce7 17.Nb3 Nh6 (17...Re8 18.Ne5+=) 18.Ne5 Ng4 19.Qc3 Ne5 20.de5 (20.Re5?! Be5 21.de5 Re8=) 20...b6 21.Rac1 Re8 22.Nd4 Qd7 23.Nc6?? (23.Ne6 Qe6 24.cb6 cb6+/–) 23...Rec8 (23...Nc6 24.bc6 Qc6=) 24.cb6 cb6 White creates threats along the open c–file 25.Ba3 (25.Red1 Qe8+/–) 25...Bf8 (25...Nc6 26.bc6 d4 27.cd7 Rc3 28.Rc3 dc3 29.Bb5+=) 26.Bd6+/– Qe8 27.Ne7 Be7 28.Qd4 Bd6 29.ed6 The passed pawn on d6 will quickly become a dangerous weapon 29...Rab8 (29...Qd8 30.Qf4+/–) 30.Rc7+– Qf8 31.Re7 Re8 32.Qe5 (better is 32.Re8!? Qe8 33.Qf6+/–) 32...Rbd8+= 33.Re8 Qe8 34.Rc1 Rc8 (34...Qd7 35.Rc6 Qb7 36.Qd4+–) 35.Rc7 Rc7 36.dc7 Qd7 37.h3 h5 (37...Qc8 38.Qd6 Qb7 39.Qd8 Kg7 40.Qb8+/–) 38.f3 (38.Qf4 Qc8+/–) 38...h4 39.Kf2 Kh7 40.Ke3 (40.Qf4 Qe7+/–) 40...Kg8= 41.Kf4 Kh7 42.Kg5 Qe7 43.Qf6 Qc7 Threatening mate... how? 44.Bg6 Kg8 (44...fg6 45.Qg6) 45.Kh6 Do you see the mate threat? 45...Kf8 46.f4 d4 47.Be4 Bb3 48.Bc6 (48.Qg7 Ke7 49.Qd4 Qf4 50.Kg7 Bc2 51.Qb6 Qg5 52.Bg6 Qg6 (52...Bg6?! 53.Qc7 Ke6 54.Qc6 Ke5 55.Qc5 Kf4 56.Qc1 Kf5 57.Qc5 Kf4 58.Qc1 Kf5 59.Qc5 Kf4=) 53.Qg6 fg6–+) 48...d3 (48...Ba4 49.Qd4 Bb3 50.Kg5 Qe7 51.Kg4 f5 52.Kf5 Be6 53.Kg6 Qf7 54.Kh6+/–) 49.Qh8= Ke7 50.Kg5 Threatening mate... how? 50...Be6 51.Qd4 (51.Kh4 Qf4 52.g4 Bd7 53.Bd7 Kd7–/+) 51...Kf8 (51...Qd6 52.Qf6 Kf8 53.Qh8 Ke7 54.Qe8) 52.f5+/– Bb3 53.Qh8 (53.Qh4 f6 54.Kg4 Bd1 55.Bf3 Qc4 56.Kg3 Qh4 57.Kh4 Bf3–+) 53...Ke7 54.f6 (54.f6 Ke6 55.Qe8 Kd6 56.Qe3+–) 1–0. Kirylo,Tadeusz – Hoszowski,Piotr, corr 1AMM Poland, 1991.

9.Bd3+= Ne7 (9...Re8 10.Nbd2 ed4 11.ed4 Nf6 12.Re1 Re1 13.Qe1 d5 14.c5 Nh5 15.Bc2 Nf4 16.Nb3=; 9...a5 10.b5 (10.a3) 10...Re8 11.Bf5 gf5 12.Qc2 e4 13.Nfd2 Qh4 14.Nc3 Nf6 15.Rae1 Ng4 16.h3+=) 10.e4 (10.Nc3!?+= ed4 11.ed4 d5 12.c5 Nc6 13.Nd5 Nc5 14.bc5 Qd5 15.Re1 Bf5 16.Bf5=; 10.Qe2 Nc6 11.a3 ed4 12.ed4 Re8 13.Qd2 Nf6 14.b5 Ne7 15.Re1 a6 16.ba6=; 10.Qc2 f5 11.de5 Ne5 12.Ne5 de5 13.Nc3 Nc6 14.a3 Be6 15.Rfd1 Qh4 16.Nd5+=; 10.Nbd2 ed4 11.Bd4 Ne5 12.Qe2 Re8 13.Be5 de5 14.Rad1 Qd7 15.Ne4 Qa4 16.Qb2+=) 10...Nc6+= 11.b5 (11.Qd2 ed4 12.Be2 Nb6 13.b5 Ne5 14.Bd4 Nf3 15.Bf3 Nc4 16.Qc3–/+) 11...Nd4 12.Nd4 ed4 13.f4 (13.Qc2 Nc5 14.Nd2 f5 15.Rfe1 fe4 16.Ne4–/+) 13...Nc5 14.Na3 (14.Qe2 Qe7 15.Qf3 f5 16.Re1–+) 14...Re8 (worse is 14...Nd3 15.Qd3 Qe7 16.Rfe1+=) 15.Nc2 Ne4 (15...f5 16.ef5–/+) 16.Be4 (16.Nd4 Nc5–/+) 16...Re4–+ 17.Bd4 Bd4 18.Nd4 Qf6 19.Ne2?? (better is 19.Nb3–+) 19...Bg4 (19...Rc4?! 20.Rc1 Rc1 21.Qc1–+) 20.Rf2 (20.Qd5 Re2 21.Qb7–+) 20...Be2 (20...Be2 21.Qc1 Qd4–+) 0–1. Suess,Stefan – Loots,Friedhelm, corr, 1985.

9.e4 Nd4 10.Nd4 ed4 11.Bd4 a5 12.b5 f5 13.ef5 Rf5 14.Nc3 Nb6 15.Qd3 Bd4 16.Qd4=.

9.e4 Nd4 10.Nd4 ed4 11.Bd4 Bd4 12.Qd4 Qf6=.

8.de5 Nc6

9.0–0 a5 10.Qd2 Ne5 11.Rd1 Be6 12.Ne5 de5 13.ba5 Qd2 14.Nd2 Ra5=.

9.0–0 Nb4 10.Qb3 Na6 11.ed6+=.

9.0–0 de5 10.b5 Nb8 11.Ne5+/– Qe7 12.Nd3 Bb2 13.Nb2 Rd8 14.Qc2 a6 15.Nc3+/–.

9.0–0 de5 10.b5 e4 11.bc6?? Qd1 (11...ef3?! 12.Bg7 fe2 13.Qe2 Kg7 14.cb7 Bb7 15.Nc3–+) 12.Rd1 Bb2–+ (12...ef3?! 13.Nc3 fe2 14.Ne2–+).

9.0–0 de5 10.b5 e4 11.Bg7 Kg7 12.Nfd2 Ne5 13.Ne4 Qh4 14.Nbc3 Rd8 15.Qa4+/–.

9.Qb3 Ne5 10.0–0 Nf3 (10...a5 11.Ne5 (11.Rd1 Qe7 12.ba5 Nf3 13.Bf3 Nh4 14.Nd2 Nf3 15.Nf3 Bb2 16.Qb2 Ra5 17.Rd5=; 11.ba5) 11...de5 12.ba5 Ra5 13.Rd1 Qh4 14.Nd2 Re8 15.Nf3 Qe7 16.Rd5 Rd5 17.cd5=) 11.Bf3 Nh4 (11...a5 12.Bg7 Kg7 13.Rd1 Nh4 14.Bd5 c6 15.Be4 f5 16.Bc2 f4 17.Qc3=) 12.Be2 (12.Be4 Re8 13.Nd2 Bh3 14.Bg7 Bg2 15.Qc3 Be4 16.Qf6 Qf6 17.Bf6–/+) 12...Qg5 (12...Bb2 13.Qb2 a5 14.Nc3 Qf6 15.b5 Re8 16.Rfb1 c6 17.Rd1+=) 13.g3 Nf5 (13...Bb2 14.Qb2 Nf5 15.Nc3 Qf6 16.Rab1 Be6 17.g4+=) 14.Bg7 (14.Nc3 a5 15.Nd5 Qd8 16.Bg7 Ng7 17.b5+=) 14...Ng7 15.Nc3 Bf5 (15...Be6 16.Bf3 c6 17.Rfd1+=) 16.Bf3 (16.Rfd1 Be6 17.Bf3+=) 1–0. Kupsys,A – Zlatin,DA, corr, 1998.

9.Qb3 Ne5 10.Ne5 de5 11.0–0 a5 12.ba5 Ra5 13.Nc3 Qh4 14.Rfd1 Re8 15.Nd5 Rc5 16.Qa4 Re6 17.Qa7+/–.

9.Qb3 Ne5 10.Ne5 de5 11.0–0 c6 (11...a5 12.ba5 (12.Rd1 Qg5 13.ba5 Ra5 14.Nc3 Nh4 15.g3 Nf5 16.Nd5 c6 17.Qb4 Ra6 18.Nc7+=; 12.a3 Qg5 13.Nc3 Nd6 14.Rfd1 Rd8 15.ba5 Ra5 16.Nb5 Bh3 17.g3 Qe7 18.Qb4=) 12...Ra5 13.Nc3 Qh4 14.Rfd1 Rd8 15.Qb4 Rd1 16.Rd1 Ra8 17.a3 Bf8 18.Qb5+=; 11...Be6 12.Rd1 (12.Nc3 Qh4 13.Nd5 Rfc8 14.g3 Qh3 15.e4 Bd5 16.cd5 Nd6 17.Bd3 f5 18.f3+=) 12...Qh4 13.Nd2 Rfd8 14.Nf3 Qg4 15.h3 Qe4 16.Ng5 Qc6 17.b5 Qe8 18.Ne6+=; 11...Qg5 12.Nc3 a5 13.Nd5 a4 14.Qa3 c6 15.Nb6 Ra7 16.Nc8 Rc8 17.c5 Nh4 18.g3+=) 12.Rd1 Qg5 (12...Qe7 13.Nd2 a5 14.ba5 Ra5 15.Ne4 Qh4 16.Bf3 Ra7 17.Ba3 Re8 18.Bc5+=) 13.Nd2 Qe7 14.Ne4 (14.a4 h6 15.a5 Be6 16.Nf3 Nh4 17.Ne5 Rad8 18.f4+/–) 14...Be6 15.Rd2 (15.a4 Rad8 16.a5 Qh4 17.Qc2 Rd1 18.Rd1+=) 15...Rfd8 16.Rad1 Rd2 17.Rd2 Rd8 18.Rd8 Qd8 19.Qd3 Qc7 20.Nc5 Bc8 21.Qd2 b6 22.Ne4 Be6 23.a3 h6 24.c5 Bd5 25.cb6 ab6 (worse is 25...Qb6 26.Nc5 Nd6 27.Bd3+/–) 26.Nc3 Be6 27.Qc1 Ne7 28.e4 Qd6 29.Na4 Qc7 30.Qe3 b5 31.Nc5 Bc8 32.Qc3 Qd6 33.f4 f6 34.fe5 fe5 35.Nd3 Bd7 (35...g5!?+/–) 36.Ne5 Be6 37.Qd4 Qd4 38.Bd4 Bf7 39.Nf3 Be6 40.Bg7 Kg7 41.Kf2 Kf7 42.Ke3 Kf6 43.Kd4 Bd7 (43...Ba2 44.Kc5+–) 44.Kc5 Ke6 45.Bd1 Be8 46.a4 ba4 47.Ba4 Kd7 48.b5 (48.Nd4!? Kc7+–) 48...cb5 49.Bb5 (49.Kb5?! Ke6 50.Kb4 Ba4 51.Ka4 Nc8=) 49...Kd8 50.Be8 Ke8 51.Ne5 Kf8 52.Kd6 1–0. Dluhosch,Thomas – Schoferle, BdF, 1984.

9.Qb3 Ne5 10.Ne5 de5 11.Nc3 a5 12.0–0 ab4 13.Qb4 Qe7 14.Qe7 Ne7 15.Nd5 Nd5 16.cd5 Rd8 17.e4=.

9.b5 Ne5 10.Ne5 Be5 (10...de5 11.Qd8 (11.0–0 Qg5 12.Bd3 Rd8 13.Qe2 Qh4 14.Bc3 a6 15.f4 Qe7 16.ba6 Ra6 17.Bf5+=) 11...Rd8 12.Nc3 Be6 13.c5 e4 14.a4 a6 15.ba6 ba6 16.Rc1 Nh4 17.Rg1=) 11.Be5 de5 12.Qd8 Rd8 13.Nc3 a6 (13...Be6 14.c5 h6 15.Bf3 Rab8 16.h4 a6 17.g4=) 14.0–0 (14.Nd5 c6 15.Nc7 Rb8+= 16.b6 c5 17.g4+=) 14...ab5= 15.cb5 Be6 (15...h6 16.a4 Rd2 17.Rfd1+=) 16.a4 Rd2 (16...Ra5 17.Rfd1=) 17.Bf3 (17.a5=) 17...Nd6 18.a5 Rc2 19.a6 Rc3 20.ab7 Rf8 21.Bc6 Bc4 22.Rfb1 Bd3 23.Rb2? (better is 23.Rd1–/+) 23...Rb8–+ 24.f4 ef4 25.ef4 (25.Rba2 Nb7 (25...fe3? 26.Ra8 Kg7 27.Rb8+–) 26.Ra3 Ra3 27.Ra3 Bc4 28.ef4 Nd6–+) 25...Nb7 26.Rd2 Nd6 27.Re1 Nb5 28.Rd3 (28.Bb5 Rb5 29.Red1 Rbb3–+) 28...Rd3 29.Rb1 Rb6 30.Bb5 Rd5 0–1. Stoliar,Sergei Yefimovich – Schulz,R, corr ICCF–Cup8 V096, 1990.

9.Nc3 a5 10.a3 Ne5 11.0–0 Be6 12.Ne5 de5 13.Qb3 ab4 14.ab4 Qh4 15.Nd5 Ra1 16.Ra1 b5 17.cb5=.

9.Nc3 Nb4 10.e4 (10.a3 Nc6 11.e4 Nh4 12.Nh4 Qh4 13.ed6 Rd8 14.Qb1 Rd6 15.Nb5 Rd7 16.Bg7 Kg7 17.0–0=) 10...Ne7 11.a3 (11.ed6 Qd6 12.a3 Nbc6 13.Qd6 cd6 14.Rb1 f5 15.Nd2 b6 16.Nb5 Be5 17.Nc7=) 11...Na6 12.ed6 Qd6 (12...cd6 13.0–0 Nc5 14.Ra2 Bc3 15.Bc3 Ne4 16.Ba1 Nc6 17.Nd4=) 13.Qd6 cd6 14.Rd1 (14.Rb1 Nc5 15.Nd2 f5 16.Nb5 Be5 17.Nc7=) 14...Nc5 15.Nd4 Rd8 (15...Be5 16.Bf3 Nc6 17.Nd5=) 16.f3 (16.h3 Be5 17.Bf3+=) 16...Bd7 (16...f5 17.0–0=) 17.Kf2 (17.g4+=) 17...Rac8 18.Bc1 a6 19.Bg5 Re8 20.Bf4 Be5 21.Bg3 Nc6 22.Nc6 Bc6 23.Nd5 Kg7 24.Nb6 Rcd8 25.Rhe1 Ne6 26.Ke3 Bb2 27.Rd3 (better is 27.a4!?=) 27...f5–/+ 28.Rb1 fe4 (28...Bf6 29.Rd5–/+) 29.fe4+= Bf6 30.Rd6 Bd4 31.Rd4 Nd4 (31...Rd4? 32.Be5 Kh6 33.Bd4 Nd4 34.Kd4 Re4 35.Kd3+–) 32.Bf3 (32.Nd5 Ne2 33.Ke2 Re4 34.Kd3 Re6–+ (34...Bd5?! 35.cd5 Ra4 36.Rb7 Kh6 37.d6–+)) 32...Nf5 33.Kf4 Ng3 34.hg3 Rd3 35.a4 h6 36.Nd5 (36.Re1 g5 37.Kg4 Re5–+) 36...g5 37.Kg4 Rd4 38.Kh3 Rc4 39.a5 h5! 40.Ne3 (40.Bh5 Rce4) 40...g4 41.Kh4 gf3 42.Nc4 Re4 (42...Re4 43.Kh5 Rc4 44.gf3 Bf3 45.Kg5 Ra4–+) 0–1. Katalimov,Boris N – Taimanov,Mark, Alma Ata, 1963.

9.Nc3 Be5 10.b5 Bc3 11.Bc3+/– Nce7 12.0–0 a6 13.e4 Ng7 14.Qd2 Ne6 15.Rad1 f6 16.b6 Nc5 17.Qf4+/–.

9.Nc3 Be5 10.Ne5 de5 11.Qd8 Rd8 12.Nd5+/–.

9.Nc3 Ne5 10.0–0 a5 11.a3 Be6 12.Ne5 de5 13.Ne4 Nd6 14.Nd6 Qd6 15.f4 ef4 16.Bg7 Kg7 17.ef4=.

9.Nc3 Ne5 10.0–0 a5 11.b5 Be6 12.Qb3 Nf3 (12...Re8 13.Ne5 Be5 14.Nd5=) 13.Bf3 Qh4 14.Nd5 White fights for the Initiative 14...a4 15.Qa3 (15.Qc2 Bb2 16.Qb2 Bd5 17.Bd5 a3+/–) 15...Bb2 (15...Qc4 16.Bg7 Kg7 17.Rfc1+/–) 16.Qb2+= Rfc8 17.Nf6 Kg7 18.Ng4 f6 19.e4 Bc4 (better is 19...Ne7!? 20.Ne3 a3=) 20.Rfc1+/– a3 21.Qc3 Bb5 22.ef5 c6 (better is 22...Bd7+–) 23.Re1 Re8 24.Re8 Re8 25.Re1 Re1 26.Qe1 gf5 (26...Bc4 27.Qe7 Bf7 28.fg6 hg6 29.Qd6+–) 27.Qe7 (27.Qe7 Kg6 28.Ne3+–) 1–0. Hartmann,A – Schlesing,G, corr DDR, 1990.

9.e4 Nfe7+=.

9.0–0 Ne5

10.Qc2 a5 11.b5 Re8 12.Ne5 Be5 13.Be5 Re5 14.Nc3 Be6 15.Rfd1+=.

10.Qc2 Qe7 11.Nbd2 (11.Nc3 c6 12.Rfd1 Nf3 13.Bf3 Nh4 14.Be2 Re8 15.e4=) 11...a5 12.Ne5 (12.a3 Nh4 13.Ne5 de5 14.Bc3 Rd8 15.Ne4=) 12...de5 13.b5 Rd8 14.a4 (14.Rad1 Nh4 15.Ne4+=) 14...c5 (14...c6 15.Rfd1=) 15.Ne4 (15.Rad1=) 15...b6 16.Rad1 Bb7 17.h3 Bh6 18.Nc3 Be3 19.fe3 Ne3 20.Qc1 Nf1 21.Rf1 Rd4 22.Rf2 Rc8 23.Qc2 Rd6 24.Bf3 Bf3 25.Rf3 Re8 26.Nd5 Qd8 27.Qf2 f5 28.Qe1 Rde6 29.Re3 Qd6 30.Rd3 Qd8 31.Qd2 Qb8 32.Qg5 Kf7 33.Nf4 R6e7 (33...ef4 34.Rd7) 34.Qh4 Kg7 35.Nd5 Rf7 36.Re3 f4 37.Nf4 Qd6 38.Nd5 Rf5 (38...Re6+–) 39.g4 Rf7 40.Qe1 Kg8 41.Be5 (41.Be5 Qf8 42.g5+–) 1–0. Boehnke,Hartmut (2045) – Wyrwala,Manfred (2280), corr ICCF EU/EM/M/005, 2002.

10.Nc3 a5 11.a3 Be6 12.Ne5 de5 13.Qb3 ab4 14.ab4 Qh4 15.Nd5+=.

10.Qd2 Be6 11.Na3 Nh4 12.Nd4 a5 13.ba5 Bh3 14.f4 Bg2 15.Rf2 c5 16.fe5 cd4 17.ed4 de5+=.

10.Ne5 de5 A) 11.Nc3 a5 (11...Be6 12.Qb3 Qh4 13.Nd5 Rfc8 14.g3 Qh3 15.e4 Bd5 16.cd5 Nd6 17.Bd3 f5+=) 12.b5 Be6 13.Qc2 c6 14.Rfd1 Qc7 15.c5 Rfd8 16.Bd3 Qe7 17.Na4 cb5=; B) 11.Qb3 a5 (11...Be6 12.Rd1 Qe7 13.Nc3 c6 14.Ne4 Rfd8 15.Nc5 Nd6 16.Ne6 Qe6 17.c5 Qb3+=; 11...Qg5 12.Nc3 a5 13.Nd5 a4 14.Qa3 c6 15.Nb6 Ra7 16.Nc8 Rc8 17.c5 Nh4+=) 12.ba5 Ra5 13.Nc3 Qh4 14.Rfd1 Rd8 15.Qb4 Rd1 16.Rd1 Ra8 17.Nd5 Ra2+=.

10.Ne5 Be5 11.Be5 de5 12.Qd5 (12.Qa4 Qe8 13.Qe8 Re8 14.g4 Ne7 15.Nc3 Be6 16.Ne4 Red8 17.g5 Kg7+=) 12...Qd5 (12...Qf6 13.Rd1 c6 14.Qa5 b6 15.Qa4 a5 16.Nd2 Bb7 17.Bf3 Nh4+=) 13.cd5 Bd7 (13...Rd8 14.Nc3 g5 15.Nb5 c6 16.dc6 bc6 17.Nc7 Rb8+=) 14.Nd2 (14.Rc1 Rac8 15.Nc3 Nd6 16.a4 c5 17.dc6 Bc6+=) 14...c6 (14...Rfd8 15.Nb3 Ne7 16.e4 c6 17.Bf3 f5=) 15.Ne4 Kg7 (15...Rfd8 16.d6 h5 17.Rfd1 a5+=) 16.g4 Nh6 (16...Nh4 17.Nc5 Bc8+/–) 17.g5 Ng8 (17...Nf5+/–) 18.Nc5 Bh3 19.Rfd1 cd5 20.Rd5 b6 21.Ne4 Rfe8 22.Bb5 Re7 23.Rc1 a6 24.Bd3 Rc8 (24...f5 25.Nd6 e4 26.Be2+/–) 25.Rc8+/– Bc8 26.Rd6 Re6 27.Bc4 Rd6 28.Nd6 Be6 29.Be6 fe6 30.Nc4 b5 31.Ne5 Ne7 32.e4 Nc8 33.Nd7 Nd6 34.Nc5 Kf7 (34...e5 35.f3+–) 35.f4 Nc4 36.Na6 e5 37.fe5 Ke6 38.Nc7 Ke5 39.Nb5 Ke4 40.a4 Kd5 (40...Kf4 41.a5+–) 41.a5 Kc6 42.Nc3 Ne5 43.b5 Kb7 44.Ne4 Nf7 45.Kf2 Kc7 46.Ke3 1–0. Sternik,Ryszard – Chowaniec,W, corr, 1997.

7.de5 Nbc6

8.a3 de5 9.Qd8 (9.b5 Qd1 10.Kd1 Na5 11.Be5 Bg4 12.Bg7 Bf3 13.gf3 Kg7 14.Kc2 c6+/–) 9...Rd8 10.b5 e4 11.Bg7 Kg7 12.Ng5 (12.bc6?! ef3 13.cb7 Bb7= 14.g3 Rab8=; 12.Nfd2 Ne5 13.Ne4 f5 14.Nc5 b6+=) 12...Ne5 13.Ne4 Bg4 (13...f5 14.Nc5 b6+/–) 14.Nbc3 Nd3 (14...h6+/– 1.06) 15.Bd3 Rd3 16.0–0?? (better is 16.Ne2+/–) 16...f5+= 17.h3 fe4 18.Ne4 Bf5 (18...Bf5 19.Nc5 Rc3+=). Donath,Rainer – Perlitz,Juergen, corr ICCF EU–chT2, 1978.

8.a3 Ne5!? 9.Ne5 de5= 10.Bd3 Bg4 11.Qc2 a5 12.0–0 ab4 13.ab4 Ra1 14.Ba1 Nc6=.

8.Qb3 de5 9.b5 Na5 10.Qc3 +=.

8.Qb3 Ne5 9.Nbd2 Nf3 10.Nf3 Nf5 (10...Bb2 11.Qb2 a5 12.b5=) 11.Be2 Be6 (11...a5 12.Bg7 Kg7 13.e4=) 12.Bg7+= Ng7 13.Qc3 Qe7 14.0–0 Rad8 15.Rfd1 d5 16.c5 c6 17.a4 a6 (17...Bg4 18.Qd4 Bf3 19.Bf3= (worse is 19.gf3 Ne6 20.Qg4 Rfe8=)) 18.h3 Ne8 (18...Rfe8 19.b5+/–) 19.b5 ab5 20.ab5 Nf6 21.bc6 (21.Nd4 Ne4 22.Qb4 cb5 23.Rdc1=) 21...Ne4+= 22.Qd4 bc6 23.Ra6 Qc5 24.Qc5 Nc5 25.Rc6 Nd7 (25...Rc8 26.Nd4+=) 26.Ng5 (26.Nd4 Rc8+/–) 26...Rfe8 27.Bg4 (27.Ne6 fe6 28.Rc7 Kf7+=) 27...Nf8 (27...Bg4 28.hg4 Ne5 29.Rc7=) 28.Be6 fe6 29.Ra1 Rd7 30.Raa6 e6 becomes the focus of attention. White fights for the Initiative 30...Rde7 31.f4 (31.Nf3 e5+=) 31...h6 (31...e5 32.e4=) 32.Nf3+= Nd7 33.Ra7 Kf8 (33...Ne5 34.Rcc7 (worse is 34.Ne5 Ra7 35.Ng6 Ra2–/+) 34...Nf3 35.gf3=) 34.Rcc7 Nb6 35.Ne5 Rc7 36.Rc7 g5 37.Rh7 gf4 38.ef4 Nc8?? (better is 38...Rc8+/–) 39.Nd7+– (39.Nd7 Kg8 40.Nf6 Kf8 41.Rh8 Kg7 42.Re8 (42.Ne8 Kh8 43.Nc7 Kg7+/–) 42...Kf6 43.Rf8 Kg6 44.Rc8+–) 1–0. Gorbylev,Aleksandr – Avlasenko,Vladimir, corr, 1999.

8.Qb3 Ne5 9.Ne5 de5 10.Nc3 Bd7 11.Rd1 Qc8 12.c5 b6 13.Ba6 Be6 (13...Qe8 14.e4=) 14.Qa3 Qb8 15.e4 c6 16.0–0 b5 17.Rd2 Qc7 18.Rfd1 Rad8 19.Rd6 Nc8 20.Bc8 Rc8 21.Bc1 (21.Qa6 Rfe8+/–) 21...Bf6 22.Bh6 Rfd8 23.Ne2 Be7 24.R6d2 Rd2 25.Rd2 Rd8 26.Nc1 g5 27.Qe3 Rd2 28.Qd2 Qd8 29.Qd8 Bd8 30.g3 (30.f3 f6=) 30...Bc4 31.Kg2 f6 32.f4 ef4 33.gf4 Bc7 (33...Kf7=) 34.e5 (34.fg5 Bf4 35.Nb3 Bb3 36.ab3 fg5 37.h4+=) 34...gf4–/+ 35.ef6 Kf7 36.Kf3 (36.Kf2 Kf6 37.Ne2 a5 38.ba5 Ba5 (38...Ba2?! 39.a6 Bb8 40.Bf4=) 39.Bf4 Ba2–+) 36...Bd5–+ (36...Kf6?! 37.Bf4 Bd8 38.Nb3=) 37.Kg4 f3 (37...Kf6?! 38.Bf4 h5 39.Kg3+=) 38.Be3 (38.Nd3 Kf6 39.Bg5 Ke6–+) 38...Bh2 (38...Kf6 39.Nd3 Bh2 40.Nf4–+) 39.Nd3 (39.Kf5 Bc7–+) 39...Ba2 (39...Kf6 40.Nf4 Ke5 41.Nd5–+) 40.Bd4 (40.Nf4 Kf6 41.Bd4 Ke7 42.Kf3 Bd5 43.Kg4 Bc4–+) 40...Bd5 41.Nf4 Bf4 (better is 41...Be4!?–+) 42.Kf4–/+ f2 Threatening mate... how? 43.Bf2 Kf6 44.Bh4 Ke6 45.Bd8 ½–½. Buczinski,Henryk – Kukawski,Jan, corr ch–Poland, 1992.

8.Qb3 Ne5 9.Ne5 de5 10.Be2 c5 11.bc5 Qa5 12.Nc3+=.

8.Qb3 Ne5 9.Ne5 de5 10.Be2 c6 11.Nc3 (11.0–0 Qb6=) 11...Qc7 (11...a5 12.Rd1 Qc7 13.b5 cb5 14.Nb5+=) 12.0–0 Be6 13.e4 (13.Ne4 Rad8=) 13...b5 (13...f5 14.Rad1=) 14.a4+= a6 15.ab5 ab5 16.Ra8 Ra8 17.h3 Nc8 18.Qc2 bc4 (18...Bc4 19.Bc4 bc4 20.Ra1 Ra1 21.Ba1+=) 19.Na4= Nd6 20.Nc5 Qe7 21.Rd1 Rb8 22.f4 ef4 23.Bg7 Kg7 24.Qd2 Ne8 25.Bc4 Nc7 (25...Bc4 26.Qc3 Nf6 27.Qc4+=) 26.Qf4 (26.Qc3 Kg8=) 26...Rb4+= 27.Qe5 Kh6 28.Rd7 Qg5 29.Qg5 Kg5 30.Rc7 Bc4 31.Rc6 Rb1 32.Kh2 Bf1 (32...Kf4 33.Nd7 Bb5 34.Rf6 Ke4 35.Rf7 Bd7 36.Rd7=) 33.Rc7 Rb2 (33...Bc4 34.Kg3=) 34.Rf7+= Bg2 35.Kg3 Kh6 36.Nd3 Rb3 37.Kg2 Rd3 38.h4 (38.Rf3 Rd1+=) 38...g5= 39.hg5 Kg5 40.Kf2 h5 41.e5 Rd5 42.Rg7 ½–½. Brzoza,Miroslaw – Hoszowski,Piotr, corr 1AMM Poland, 1991.

8.Qb3 Ne5 9.Ne5 de5 10.Be2 Be6 11.Nd2 c6 (11...a5 12.Rd1 Qc8 13.ba5=) 12.Ne4 Qc7 13.0–0 Rad8 14.a4 (14.Nc5 Bf5=) 14...Bf5 (14...f5 15.Nc5 Bf7 16.Rfd1+=) 15.Bf3 Rd7 16.Nc5 Rdd8 (16...Rd2 17.e4 Bd7 18.Rfd1 Rd1 19.Rd1+/–) 17.Be4 (17.e4 Bd7+=) 17...Bc8 (17...b6 18.Na6 Qb7 19.Bf5 Nf5 20.b5=) 18.Bc2 (18.f4 f5 19.Bd3 b6–/+) 18...b6= 19.Nd3 Be6 20.Qc3 Increases the pressure on e5 20...Nf5 (20...c5 A) worse is 21.Ne5 Nc6 22.f4 cb4–/+ (22...Nb4?! 23.a5+=); B) 21.bc5 bc5 22.f4+=) 21.Ne5+= Rfe8 (21...c5 22.Bf5 cb4 23.Qb4 Bf5 24.Nf3=) 22.f4 (22.Rfd1 Be5 23.Qe5 Qe5 24.Be5 Bc4+/–) 22...Be5 (22...c5 23.b5+=) 23.fe5+/– (worse is 23.Qe5 Qe5 24.Be5 Ne3–/+) 23...c5 24.b5 Qe7 25.Be4 (25.a5 Qg5 26.Rf3 ba5 27.Bf5 Bf5+–) 25...Qg5 26.Rad1 (26.Bf5 Bf5 27.e6 f6=) 26...h5 (26...Rd1 27.Rd1 Ne3 28.Qc1=) 27.Bc6 (27.Rd8 Rd8 28.Bc1 Qh4+/–) 27...Rf8 (27...Qe3 28.Kh1 Qc3 29.Bc3+=) 28.Bc1 (28.Rd8 Rd8 29.Bc1 Qh4+=) 28...Qe7 (better is 28...Rd1 29.Rd1 Qg4+/–) 29.Rf4?? (29.Bd2 f6+–) 29...Nh6 (better is 29...Rd1 30.Rf1 Rf1 31.Kf1 Qh4–+) 30.Rdf1+– Qc7 31.h3 (31.Rf6 Nf5+–) 31...Nf5 32.Bb2 Ng3 33.Re1 Rd1 34.Kh2 (34.Rd1?! Ne2 35.Kh2 Nc3 36.Bc3 Rd8+=) 34...Re1 35.Qe1 (35.Kg3?! Rd1=) 35...Nf5 36.Be4 Qd7 37.Qf2 Rd8 38.Bd5 g5 39.Bc6 Qc8 40.Re4 (40.Rf3 g4 41.e4 Nd4+=) 40...Ne7 41.Qf6 Ng6? (41...Nc6 42.Qg5 Kf8 43.bc6+/–) 42.Bd5! g4?? (42...Rd5 43.cd5) 43.Be6 g3 44.Kg3 Qe6 1–0. Teichmann,Erik (2290) – Gartner,Hubert, Schellenberg op, 1991.

8.ed6 Bb2 9.Nbd2 Qd6 –+.

8.Be2 Bf5 9.Qb3 Ne5 10.Ne5 de5 11.0–0 Qe8 12.Nc3 Rd8 13.e4 Bd7 14.Qa3 a6+=.

6.d4 ed4

7.ed4 0–0 8.Bd3 c5 9.Qb3 Nbc6 10.bc5 (worse is 10.dc5 Bb2 11.Qb2 dc5+=) 10...dc5 11.d5 Bb2 12.Qb2 Nb4 13.Be2 Nf5 (13...Qb6!? 14.Qb3 Bf5=) 14.0–0 Re8 15.Nc3 b5 (15...Nd4 16.Nd4 cd4 17.Qb4 dc3+/–) 16.a3+– Na6 17.Nb5 (17.Qb5?! Nd4 18.Qb2 Rb8=) 17...Rb8 18.Qd2 Nc7 (18...Rb7+–) 19.Na7 Bb7 20.a4 Qe7 21.Bd3 Nd6 22.Rfe1 Qf6 23.Nb5 Rbc8 24.Nc7 Rc7 25.Re8 Ne8 26.Re1 Nd6 27.h3 Kg7 28.Qe3 Ba6 29.Rc1 Qb2 30.Qe5 (30.Rb1!? Qf6 31.Qe5 Rb7 32.Rb7 Nb7 33.Qf6 Kf6+–) 30...Qe5 31.Ne5 f6 32.Nc6 Rb7 33.Nd8 Rb3 (33...Rb4 34.Ra1+–) 34.Bf1 (better is 34.Ne6 Kf7 35.Nc5 Ra3+–) 34...Rb4 35.Ne6 Kh6 (35...Kf7 36.a5 Bc4 37.Nc5+–) 36.Nc5 (36.a5!? Bc4 37.Bc4 Rc4+–) 36...Bc4 37.Bc4 Nc4 38.f3 Nd6 (38...f5 39.g3+–) 39.a5 Rb5 40.a6 Ra5 41.g4 f5 42.Kg2 fg4 43.hg4 Kg5 44.Kg3 Ra3 (44...h5 45.f4 Kf6 46.Kh4 hg4 47.Kg4+–) 45.Ne6 (better is 45.Re1!? h5 46.Re5 Kh6 47.gh5 Ra5+–) 45...Kf6 46.Rc6 Ne4 (46...Ke5 47.Nc7 Ne4 48.Kg2 Ra2 49.Kh3 Nf2 50.Kh4 Kf4 51.Rf6 Ke5+–) 47.Kf4 Nd2 48.Ng5 Ke7 49.Rc7 Kd6 50.Rh7 Ra4 51.Ke3 Nc4+/– 52.Kf2 Ra6 53.Rg7 Ra2? 54.Kg3+– Ke5 55.Rg6 Nd6 56.Rg8 Ra3 57.Ne4?? Kd5 (57...Kd5 58.Rg5 Kc6+–). ferminkatcho (1770) – biged (1675), internet, 2013.

7.Bd4 0–0! 8.Bg7 Kg7 9.a3 Nf5 10.Be2 Qf6 11.Nbd2 b6 12.0–0! Bb7 13.Qc2 Nh4 14.Rad1 Nd7 15.Nh4 Qh4 16.Nf3 Qf6 17.Rd2 Ne5 18.Ne5 Qe5 19.Qd1 Qg5 20.Bf3 d5 21.cd5 h5 22.e4 Qf6 23.Re1 Rad8 24.Qc2 h4 25.h3 Qg5 26.Rde2 Rfe8 27.Qc7 Ba8 28.Qa7 b5 29.Qd4 Kh7 30.e5 Rd7 31.Re4 Red8 32.Rh4 Kg7 33.e6 Qf6 34.Qf6 Kf6 35.ed7 Rd7 36.Rf4 Kg7 37.Rd1 Rd6 38.Rfd4 f6 39.Rc1 g5 40.Rc7 Kg6 41.Ra7 Bd5 42.Rd5 Re6 43.Rb5 f5 44.Rbb7 g4 45.Rg7 Kf6 46.hg4 fg4 47.Bg4 Re1 48.Kh2 Re4 49.Kg3 Rc4 50.Raf7 Ke5 51.Rg5 Kd4 52.Rf4 Kc3 53.Rc4 Kc4 54.b5 Kb3 55.b6 Ka3 56.b7 Kb4 57.b8Q 1–0. vihavald (1670) – pentium12, internet, 2013.

7.Bd4 0–0 8.Bg7 Kg7 9.Be2 Nbc6 10.b5 Ne5 11.Nc3 Be6 12.0–0 Kg8 13.Ne5 de5 14.Qb1 Qd2 15.Qb4 a5 16.Qa3 Nc8?? (better is 16...Qd6 17.c5 Qd7+/–) 17.Rfd1+– Qc2 18.Bd3 (18.Bd3 Qd1 19.Rd1+–) 1–0. pcmvr (2810) – alencro (2640), net–chess.com, 2011.

7.Bd4 Bd4

8.ed4 0–0 9.Bd3 Nd7 (9...Bg4!?=) 10.0–0+= c5 11.bc5 dc5 12.d5 Nb6 13.Nc3 Nf5 14.Re1 Nd4 (14...Nd6!? 15.Qb3 Bg4+=) 15.Nd4+– cd4 16.Nb5 Qf6 17.Bf1 a6 18.Qd4 Qd4 19.Nd4 f5 20.c5 Nd7 21.Rac1 Nf6 22.Bc4 Bd7 (22...Re8 23.Re8 Ne8 24.d6 Kg7 25.Re1+–) 23.c6 bc6 (23...Bc8 24.Ne6 Be6 25.Re6+–) 24.dc6 (24.dc6 Kh8 25.cd7 Nd7 26.Re7+–) 1–0. Fournier,Frederic – guest3485, Active (3/0), 2006.

8.Nd4 Nf5 9.Nc3 Nc6 10.Nc6 bc6 11.Bd3 Qf6 12.Qc2 0–0 13.0–0 Nh4 14.Be4 Be6 (better is 14...Bf5!?+=) 15.Bc6+– Rab8 16.Nd5 (16.b5 Qg5 17.Qe4 Rfd8+–) 16...Qg5? (better is 16...Bd5!? 17.Bd5 Rb4+/–) 17.f4+– (17.Nc7?! Rb4 18.Qd2 Qc5+/–) 17...Qg4?? (better is 17...Qd8+–) 18.Nf6 Kg7 (18...Kh8 19.Ng4 Bg4 20.e4+–) 19.Ng4 (19.Ng4 Bg4 20.e4+–) 1–0. barborski – zihulak, internet, 2013.

8.Qd4 0–0

9.Nbd2 Nbc6 10.Qc3 a6 11.b5 (11.Ne4!? f5 12.Nf6 Rf6 13.Qf6 Nb4 14.Rb1+–) 11...ab5= 12.cb5 Na5 13.Be2 Be6 14.0–0 b6 15.Ne4 Nd5 16.Qb2 Qe7 17.Rfd1 c6? (better is 17...Bf5 18.Ng3 Be6+=) 18.Rd5!+– Bd5?? (18...cd5 19.Nf6 Double attack (19.Nf6 Decoy); 18...Bd5 19.Nf6 Double attack (19.Nf6 Decoy)) 19.Nf6 Kg7 (19...Qf6 20.Qf6 cb5 21.Qd6 Bc4+–) 20.Nd5 (20.Ne8! Kh6 21.Qg7 Kh5 22.Qh7 Kg4 23.Qh3) 20...Qe5+– 21.Ne5 (21.Ne5 de5 22.bc6 Nc6 23.Bb5+–) 1–0. barborski – luani123, internet, 2013.

9.Nbd2 Nbc6 10.Qc3 Nf5 11.a3 Qe8 12.Bd3 Ne5 13.Be2 Bd7 14.Ne4 Nf3?? (better is 14...f6+=) 15.Bf3+– Qe5 (15...f6 16.Nf6 Rf6 17.Qf6 Ne3 18.fe3 Qe3 19.Kf1 Rf8+=) 16.Nf6 Kg7 17.Qe5 de5 18.Nd7 f6 (18...Rfe8 19.Bb7 Rad8 20.Nc5+–) 19.Bb7 Rad8 20.Bc6 (20.Nf8 Kf8 21.Bd5 Ne7+–) 20...Ne7 (20...Rh8 21.0–0–0+–) 21.Ba4 (21.Nf8 Kf8 22.Bb7 c6+–) 21...c6 (21...Rg8 22.0–0–0+–) 22.Nc5 (better is 22.Nf8 Kf8 23.Ke2 a6+–) 22...Rd6 23.Rd1 Rfd8 (23...Rd1 24.Kd1 Rd8 25.Ke2+–) 24.Rd6 (better is 24.Ne6! Re6 25.Rd8 c5+–) 24...Rd6 25.Ke2 f5 26.Rd1 Rd1 27.Kd1 Kf6 28.Kd2 g5 29.f3 (29.Nd7!? Ke6 30.Nf8 Kf7 31.Nh7 g4+–) 29...h5 30.Kd3 g4 31.Bb3 Kg5 (31...Ng6 32.fg4 hg4 33.Ba4 e4 34.Kd4+–) 32.Nd7 Ng6 Black prepares the advance f4 33.c5 Kh4 34.Ke2 f4 35.Bf7 gf3 36.Kf3 Kg5 (36...e4 37.Ke4 f3 38.Kf3+–) 37.Bg6 Kg6 38.Ne5 (38.Ne5 Kf6 39.b5 cb5 40.c6 Ke5 41.c7 fe3 42.c8Q+–) 1–0. barborski – mirosh (1775), internet, 2013.

9.Be2 a5 10.b5 Nf5=.

9.Be2 Nd7 10.Qd2 c5 11.Qd6 b6 (11...Nf5!? 12.Qd2 Qf6+=) 12.0–0 cb4 13.Qb4 Nc6 14.Qb2 Bb7 15.Rd1 Qc7 16.Nc3 Na5 17.Nb5 Qc6 18.Rd2 g5 (better is 18...Qf6+–) 19.Rd6 Qc8 20.Ng5 Nc4 (20...Qd8 21.h4 Qe7+–) 21.Qc2 (21.Qc2 f5 22.Bc4 Kg7 23.Ne6 Kh8 24.Rd7 Qd7 25.Qc3 Kg8 26.Nc5 Qf7 27.Nb7 Qc4 28.Qc4 Kh8 29.N7d6+–) 1–0. Nemec,Zdenek – Buckingham,William A, corr or01–011, 2001.

9.h3 a5 10.b5=.

9.h3 Nbc6 10.Qb2 Be6 11.Nbd2 a6? (11...f6 12.Be2=) 12.Be2 (better is 12.Ne4 Nf5 13.Nf6 Kh8 14.Nd7 f6 15.Nf8 Qf8 16.Be2+–) 12...f5 13.Ng5 (13.0–0 Qd7+=) 13...Bf7 (13...Qd7 14.0–0=) 14.Ndf3 h6 15.h4 Qd7 (15...d5 16.h5 hg5 17.h6+=) 16.Rd1 (16.h5 gh5 17.Nf7 Rf7+/–) 16...Nd8? (16...Be6!?=) 17.c5 (better is 17.h5 gh5 18.Nf7 Nf7 19.Qf6+/–) 17...Ne6? (17...Bd5 18.h5 Qe8 19.cd6 cd6 20.Rd5 Qc6+–) 18.cd6 (18.Nf7 Rf7 19.Ne5 Qd8 20.Nf7 Kf7 21.cd6 cd6+–) 18...cd6 (18...hg5 19.hg5 Ng7 20.Ne5 (20.de7?! Qe7 21.Ne5 Qg5+–) 20...Qd6 21.Rd6 cd6 22.Nd7+– (worse is 22.Nf7 Rf7 23.Qd4 d5+–)) 19.Nf7 Rf7 20.Ne5! Qc7 (20...de5 Exploits the pin 21.Rd7) 21.Nf7 Kf7 22.Qb3 (22.h5 g5+–) 22...b5 (22...d5 23.Bf3+–) 23.g4 (23.h5 g5+–) 23...Qc6 24.0–0 (24.Rh3 fg4 25.Bg4 d5+–) 24...Kf6 (24...Rc8 25.Kh2+–) 25.Rc1 Qe4 26.f3 (26.g5 hg5 27.hg5 Kf7+–) 26...Qd5 27.Qa3 Qe5? (27...f4 28.Rfd1 Qe5 29.e4+–) 28.Rf2 (better is 28.f4 Nf4 29.Rf4+– (29.ef4?! Qe2 30.g5 Kf7+=)) 28...Nd5+/– Black prepares the advance f4 29.Bb5 (29.e4!? Nd4 30.Kh1+/– (30.ed5?! Ne2 31.Re2 Qe2=)) 29...Ne3 30.Bf1 Qg3 31.Bg2 f4 32.Re2 g5 (32...d5 33.b5 Kf7 34.Qd6 Qh4 35.b6+/–) 33.b5 (33.Rc6!? Rd8 34.Qc3 Kf7+–) 33...gh4+/– 34.Qc3 Kf7 35.Qd3 (better is 35.Qb3 Re8 36.ba6+=) 35...Ng5?? (better is 35...ab5 36.Qh7 Kf6 37.Qh6 Ke7 38.Qh7 Kf6=) 36.Rc7 Kf6 37.Qd6 Ne6 White now must not overlook the idea Re8 38.Re7 1–0. Researchonly (1805) – Ljubisa1 (1900), echecsemail.com, 2008.

6.d4 Nd7

7.c5 dc5 8.bc5 e4 9.Ng5 Nc5 10.Nc3 Nd3 11.Bd3 ed3 12.Qd3 0–0 13.0–0 c5 =.

7.c5 e4 8.Ng5 (8.cd6!? cd6 9.Nfd2= d5 10.Nc3 0–0 11.Rc1 f5 12.Be2 Nf6 13.Qb3 Rf7=) 8...d5+= 9.Nc3 (9.Bb5 0–0 10.Nh3 a5 11.Bc3 ab4 12.Bb4 Nf6 13.Nf4 Bg4+=) 9...Nc6 (better is 9...Nf6!?+= 10.h4 h6 11.Nh3 Bg4 12.Qa4 c6 13.b5 0–0+=) 10.Nd5+= Qg5?? (better is 10...Nc5 11.Nc7 Qc7 12.bc5 Qe7+= 13.h4 h6+=) 11.Nc7+– Kf8 12.Na8 Qd8 (12...Nb4 13.h4 Qd5 14.Ba3+–) 13.Qb3 (better is 13.b5!? Ne7 14.Rc1 Qa5 15.Qd2 Qd8+–) 13...Nf6 14.b5 Be6 15.Qa3 Ng4 (15...Qa8 16.bc6 bc6+–) 16.bc6 Qf6 (16...Qa8 17.cb7 Qb7 18.c6 Qe7 19.d5 Qa3 20.Ba3 Kg8 21.0–0–0+–) 17.cb7 (better is 17.f3 ef3 18.cb7 Bh6 19.b8Q Kg7 20.Qh8 Kh8+–) 17...Qf2 18.Kd1 Ke7 (18...Ne3 19.Qe3! Qb2 (19...Qe3?? 20.b8Q Ke7 21.Qa7 Kf6 22.d5 Kf5 23.Bg7+–) 20.b8Q Qb8 21.Qe4 Qd8+–) 19.c6 Kf6 20.d5 Kg5 21.Bg7 Ne3 22.Qe3! Qe3 23.Bh8 (23.de6 Rd8 24.Bd3 Rd3 25.Kc2 Rd2 26.Kc1 Ra2 27.Kb1 Qb3 28.Kc1 Qc2) 23...Bg4 24.Kc2 Be2 25.b8Q Qd3 26.Kb2 Qd2 27.Kb3 Qd5 28.Kb4 a5 29.Ka4 (better is 29.Ka3 Qd3 30.Qb3 Qd6 31.Kb2 Qd2 32.Kb1 Bg4 33.h4 Kh6 34.Qf7 Bf5+–) 29...Bd1 30.Rd1! Qa2 (30...Qd1 31.Qb3 Decoy) 31.Kb5 Qb3 32.Ka5 (32.Ka6 Qb8 33.Nb6 Qc7+–) 32...Qb8 33.c7 Qh8 34.Ka6 (better is 34.Ba6 Qa8 35.c8Q Qc8 36.Bc8 f5+–) 34...Qa8 35.Kb6 Qc8 36.Bc4 Qf8 (36...Qh8 37.Kb7 Qb2 38.Ka7 Qa3 39.Ba6 Qc5 40.Kb7+–) 37.Rd8 Qb4 38.Bb5 e3 39.c8Q e2 40.Qc5 (40.Qc5 Qc5 41.Kc5+–) 1–0. Morriss,Pete R – Bennett,JS, Bognor Regis–B, 1965.

7.Be2+= 0–0 8.0–0 ed4 9.ed4 (worse is 9.Nd4 c5–+) 9...Re8 10.Re1 d5 11.c5 b6 12.Nc3 bc5 13.bc5 Rb8 14.Qd2 c6 15.Bd3 Nf8 16.Rab1 Bf5 17.Bf5 (17.Ne5 Nd7 18.f4 Qc7=) 17...Nf5 18.Ne2 (18.Re8 Qe8 19.Re1 Ne6=) 18...Ne6 19.Bc3 (19.a3 Qc7=) 19...Rb1 20.Rb1 Qe7 21.h3 (21.Re1 Nh4 22.Nh4 Qh4=) 21...h5 (21...a6 22.a3+=) 22.a4 Bh6 23.Qb2 Ng5 24.Ng5 Bg5 (24...Qe2 25.Nf3 Qb2 26.Rb2=) 25.Re1 Qd7 26.Qc2 (26.a5 Bf6=) 26...Bd8 (26...Bf6 27.Qd3=) 27.Qd3 Bc7 (27...Bf6 28.a5=) 28.Kf1 (28.Bd2 a5+=) 28...Bb8 (28...Re4 29.Bd2+=) 29.Ng1 (29.Bd2 Kg7+=) 29...Re1 30.Be1 Bf4 (30...Qe6 31.Nf3=) 31.a5 Bg5 ½–½. Mehlhorn,Uwe – Rieger,H, H–2077–D, 2000.

7.Be2 0–0 8.Nc3 Nf5 9.d5 Re8 10.e4 Nd4 11.0–0 b6 12.Nb5 Nf3 13.Bf3 Nf8 14.c5 a6 15.Nc3 bc5 16.bc5 dc5 17.Na4 Nd7 18.Rc1 Bf8 19.Qc2 a5 20.Ba3 c4 21.Bf8 Rf8 22.Rfd1 Ba6 23.Be2 Nb6 24.Nc5 Bb5 25.a4 Qd6 26.ab5 Qc5 27.Bc4 a4 28.Ba2 Qb5 29.Qc7 Rac8 30.Qe5 1–0. ferminkatcho (1810) – wanianew (1655), internet, 2014.

7.Be2 a5 A) 8.b5 Nf5 (8...a4 9.a3 0–0 10.0–0 ed4 11.Bd4 Ne5 12.Ne5 de5 13.Bc5 Qd1+=; 8...0–0 9.0–0 Re8 10.Nbd2 Nf5 11.de5 a4 12.Qc2 Ne5 13.Ne5 a3+=) 9.0–0 0–0 10.Bd3 c5 11.Bf5 gf5 12.de5 Ne5 13.Qc2 Nf3+=; B) 8.a3 0–0 9.b5 ed4 10.Bd4 Bd4 11.ed4 Re8 12.0–0 Nf5 13.Nc3 Nf6+=.

6.d4 e4

7.Nfd2 f5

8.a3 0–0 9.Nc3 c6 10.Be2 d5 11.Qb3 Be6 12.0–0 Nd7 13.f3 Nf6 14.fe4 de4 15.Qc2 Qc7 16.g3 Rac8 17.Na4 b6 18.Rac1 Qd7 19.Nc3 Ng4 (better is 19...Bh6!? 20.Nd1 Rcd8=) 20.Bg4+= fg4 21.Nce4 Nf5 22.Qd3 b5 (22...Rce8 23.Rf2+=) 23.cb5 cb5 24.Nc5 Qd5 25.e4 (25.Qb5?! Nd4 26.Bd4 Bd4 27.Rf8 Rf8+/–) 25...Qd6? (better is 25...Bd4 26.Kh1 Qe5 27.Ne6 Rc1 28.Bc1 Ng3 29.Qg3 Rf1 30.Nf1 Qe4 31.Qg2 Qe6 32.Qa8 Kg7 33.Qb7 Kh8+–) 26.ef5 Bf5 27.Qb3 (27.Qb5?! Bd4 28.Bd4 Qd4 29.Kh1 Qd5 30.Nf3 gf3=) 27...Kh8 28.Nde4 Qb6 29.Ng5 h5 30.Nge6 Be6 31.Ne6 Rf1 32.Rf1 Rg8 33.Ng7 Rg7 34.Rf8 Kh7 35.Qd5 (35.Qe3 Qd6 36.Qe8 Qf8 37.Qf8+–) 35...a5 (35...g5 36.Qe5 Qg6 37.d5+–) 36.Qc5 Qf6 37.Rf6 Rd7 38.d5 Rf7 39.Rf7 1–0. barborski – elmirce (1735), internet, 2013.

8.a3 0–0! 9.g3 c5 10.Nb3 cd4 11.Bd4 Bd4 12.Qd4 Nbc6 13.Qb2 Be6 14.Nc3 d5 15.Rd1 d4 16.ed4 Bf7 17.d5 Ne5 18.Be2 Rc8 19.Nd2 Qc7 20.Nb5 Qb6 21.c5 Qd8 22.Qe5 1–0. vihavald – kamileon77, internet, 2014.

8.b5 0–0 9.a4 c5 10.Nb3 b6 11.Qc2 cd4 12.Bd4 d5 13.Bg7 Kg7 14.c5 bc5 15.Qc5 Nd7 16.Qc3 Nf6 17.Nd4 h6 18.Be2 Kh7 19.0–0 Bd7 20.Nd2 Rc8 21.Qb4 Neg8 22.Rfc1 Qb6 23.a5 Qb7 24.g3 h5 25.Kg2 Kh6 26.h4 Ng4 27.Bg4 fg4 28.b6 a6 29.N2b3 Nf6 30.Qd6 Bb5 31.Rc8 Qc8 32.Nb5 ab5 33.Rc1 Qd8 34.Qf4 Kg7 35.Rc7 Nd7 36.Qd6 Rf7 37.Nd4 Qe7 38.Qe7 Re7 39.Nb5 Kf6 40.Nd4 Nb8 41.Rc8 Na6 42.Ra8 Nc5 43.a6 Rf7 44.b7 Na6 45.Ra6 1–0. orangutandu – zmuidzin, internet, 2013.

8.Qc2 0–0 9.d5 Be5 10.Be5 de5 11.Qc3 Nd7 12.Nb3 b6 13.Be2 Rf7 14.0–0 Qf8 15.Qd2 Qh6 16.c5 White prepares d6 16...b5?? (better is 16...Nf6 17.Nc3 Rf8+/–) 17.d6+– Nc6 (17...cd6 18.cd6 (18.Qd6?! a6+–; 18.Bb5?! d5+=) 18...Nc6 19.Bb5+–) 18.Bb5 Bb7 (18...Nd8 19.dc7 Ne6 20.Qd6+–) 19.Bc4 cd6 (19...a6 20.dc7 Nf6 21.a4+–) 20.Bf7 (20.Qd6!? Rd8 21.Qc7 Ba6 22.Bf7 Kf7+–) 20...Kf7 21.Qd6 (worse is 21.cd6 Kg7+–) 21...Ke8 22.Rd1 Rd8 23.Qe6 Ne7 24.Nc3 f4 (24...Nf8 25.Qe5 a6 26.Rd8 Kd8 27.Rd1 Ke8 28.Na5+–) 25.Nd5 (better is 25.Nb5 Kf8 26.Rd7 Rd7 27.Qd7+–) 25...Bd5 26.Rd5 fe3 27.fe3 (27.c6 ef2 28.Kf1 Qg5 29.Rd7 Rc8+–) 27...Qe3 28.Kh1 Qc3 (28...Nf8 29.Rd8 Kd8 30.Qe5 Qd3+–) 29.Rad1 (better is 29.Rf1 Nf6 30.Re5 Qe5 31.Qe5 Nfg8+–) 29...e3 30.Rd7 Rd7 31.Qd7 Kf7 (31...Kf8 32.Qd8 Kf7 33.Rf1 Nf5 34.Qc7 Kf6+–) 32.Rf1 Kg7 33.Qe7 Kh6 34.Qf8 Kg5 35.h4! Kg4 36.Qf3 Kh4 37.g3 Kg5+– 38.Rg1 h5 39.Qf7 e2 40.Qe7 Kh6 41.Qf8 Kg5 42.Qe7 Kh6 43.Qf8 Kh7?? 44.Qf7+– Kh6 45.Qf8 ½–½. kannisogoet – mooflon, internet, 2013.

8.Nc3 c6 9.Qb3 Be6 10.b5 Qc7? (10...0–0 11.Be2=) 11.Rc1 (better is 11.bc6!? bc6 12.d5+/–) 11...0–0= 12.a4 b6? (better is 12...a6!?=) 13.d5+/– cd5 14.cd5 (14.Nd5?! Bd5 15.cd5 Qb7+=) 14...Bf7 15.Nce4 Qd7 (15...Qd8 16.Bg7 Kg7 17.Nc3+–) 16.Nc3 (16.Bg7!? Kg7 17.Nf6 Qb7+–) 16...Qd8 17.Bd3 (17.Bc4!? Nd7+–) 17...Nd7 18.Bb1 (better is 18.Bc4!?+/–) 18...Nc5= 19.Qc2 Rc8 (better is 19...Nd5!? 20.Nd5 Bd5 21.Bg7 Kg7=) 20.0–0+= Qd7 (20...Bd5?? 21.Nd5 Be5 22.Ba2+–) 21.Rfd1 Kh8 (21...Nd5!? 22.Nd5 Bd5 23.Bg7 Kg7+=) 22.Ba2+/– Ng8 23.f3 Nf6 24.Nb3?? (24.Re1 Kg8+/–) 24...Qb7?? Pawn d5, live or die! (better is 24...Na4!? 25.Nd4 Nc3 26.Bc3 Bd5+=) 25.Nd4 (25.Nc5 Rc5 26.Ba3+/–) 25...Nfd7? (25...Nd5 26.Nf5 Nb4+–) 26.Nc6 (26.Ne6!? Be6 27.de6 Nf6+–) 26...Ne5+/– 27.Qd2 Ned7 28.e4+– Rcd8?? 29.Bc4 Rde8 30.Re1 fe4 31.fe4 Ne5 32.Be2 Qd7 33.Rf1 h5?? 34.Rf2 Ng4? Exerts pressure on the backward pawn 35.Rf3?? Ne5? 36.Rff1 Ng4? 37.h3?? Ne5? 38.Bf3?? Nf3 39.Rf3= Bg8? 40.Re1 Rf3+= 41.gf3 Qf7 42.Qg2 Kh7 43.Rf1 Rf8 44.f4 Bd4?? 45.Kh1 Qd7?? 46.Rf3 Qf7?? 47.Bc1 Qd7?? 48.Qg5 White prepares f5 48...Bc3?? 49.f5+– Qg7 50.Qh6?? Qh6–+ 51.Bh6 Kh6 52.f6 (52.f6 Bf6 53.Kg1–+). ognos (1615) – temporales, internet, 2012.

8.Nc3 c6 9.Be2 c5+= (9...0–0 10.0–0 c5 11.bc5 dc5 12.d5 b6 13.Qb3+=) 10.dc5 dc5 11.bc5 0–0 12.0–0 Be6 13.Rb1 +=.

8.Nc3 c6 9.g3 Nd7 (9...0–0 10.f3 c5 11.bc5 dc5 12.d5 ef3 13.Qf3=) 10.Qb3 (10.Be2 0–0 11.0–0 c5 12.Nb5 Nc6 13.Nd6=) 10...0–0 (10...a5 11.c5 d5 12.b5 Rb8 13.Be2=) 11.a4 (11.Bg2 Nf6 12.0–0 Be6 13.f3=) 11...a5 (11...b6 12.g4 fg4 13.h3=) 12.ba5 (12.c5 d5= 13.b5=) 12...Ra5 (12...Qa5 13.c5=) 13.Be2 (13.c5=) 13...Nf6 14.h4 h6 15.Ba3 Ne8 (15...c5 16.Rd1 b6 17.Rb1+=) 16.Rb1 Ra8 (16...c5 17.Nb5 b6 18.Bb2=) 17.Bd1 Kh7 18.Ne2 Nc7 19.Nf4 Rf6 20.g4 fg4 21.Ne4 Rf4 22.ef4 Nf5 (22...Bf5 23.Qe3 Ne6 24.Rb7 Bd4+/–) 23.Ng3 (23.h5 Qe8 24.hg6 Kg6 25.f3 Nd4 26.Qe3=) 23...Nd4+= 24.Qe3 h5 25.Bb2 c5 26.Bd4 Bd4 27.Qe4 d5 28.cd5 Nd5 29.Bc2 Ra6 30.Qd3 Nf4 31.Qd2 Re6 32.Kf1 Qf8 33.Rh2 (33.Ne4 Re5 34.Rg1–+) 33...b6 0–1. Kalashnikov,Konstantin (2395) – Maksimov,Oleg (2400), Moscow Aeroflot op–B, 2004.

8.Be2 0–0 9.0–0 d5 10.Nc3 Be6 11.Qb3 Nbc6 12.Rac1 a6 13.a3 +=.

8.Be2 0–0 9.Nc3 c6 10.0–0 Nd7 11.Qb3 d5 12.cd5 cd5 13.Nd5 Nd5 14.Qd5 Kh8 15.Rac1 Rb8 16.Nc4 b6 17.Nd6 Nf6?? 18.Nf7 Kg8 19.Qd8 Rd8 20.Nd8 Bd7 21.Bc4 Kf8 22.Ne6 Be6 23.Be6 Nh5 24.Rc7 f4 25.g4 Nf6 26.Rf7 Ke8 27.Rg7 h5 28.g5 Kf8 29.gf6 Re8 30.Rg8# 1–0. mrkt – pio59, kurnik, 2007.

8.g3 0–0! 9.a3 c5 10.Nb3 cd4 11.Bd4 Bd4 12.Qd4 Nec6 13.Qb2 Be6 14.Nc3 Nd7 15.Rd1 Qe7 16.Nd5 Bd5 17.Rd5 Nde5 18.Be2 Qf6 19.Qd2 Rad8 20.0–0! g5 21.Rd1 Nf7 22.Nd4 Nd4 23.Qd4 Qg6 24.Qa7 f4 25.ef4 gf4 26.Bh5 Qf6 27.Bf7 Rf7 28.Qa5 e3 29.Rg5 Kh8 30.gf4 ef2 31.Kf1 Qf4 32.Qd8 1–0. vihavald (1605) – kamileon77, internet, 2014.

8.Nc3 0–0

9.Qb3 Be6 10.a4 Bf7 11.Be2 Nd7 12.b5 c5 13.dc5 Nc5 14.Qc2 b6 15.0–0 Qc7 16.Rac1 Rac8 17.Rfd1 Rfd8 18.Nb3 Ne6 (18...Nb3!? 19.Qb3 Bc4=) 19.Ba3 Be5 20.g3 Ng5 Attacks the backward pawn on c4 21.h4 (21.Nd4!?=) 21...Nf3+= (worse is 21...Bc4 22.Ne4 Nh3 23.Kh2 fe4 24.Bc4 Qc4 25.Qc4 Rc4 26.Rc4 Nf2 27.Rd2 Ng4 28.Kh3+=) 22.Kg2 Bc4 23.Bf3? (better is 23.Ne4 Be2 24.Qe2 Nh4 25.gh4+=) 23...ef3–+ 24.Kf3?? (better is 24.Kg1 Be2 25.Rd4–+) 24...Bb3 (better is 24...Qb7 25.e4 Be6–+) 25.Qb3= Kg7 26.Nd5 Qb7 27.Ke2 Nd5 28.Qd5 Qd5 29.Rd5 Rc1 30.Bc1 Kf7 31.Ba3 Ke6 32.Rd2 d5 33.Rc2 Rd7 34.Rc6 Kf7 35.f4 Bf6 36.Bb4 d4 37.Rd6 Rd6 38.Bd6 de3 39.Ke3 Ke6= 40.Bb8 Kd5 41.Ba7 Bd4 42.Kd3 Bf2?? 43.a5!+– Bg3 44.Ke3 ba5–+ 45.b6 Kc6 (45...Bh4?? 46.b7+–) 0–1. ognos – dragosrnec, internet, 2012.

9.Qb3 Kh8 10.Be2 c6 11.0–0 Be6 12.f3 ef3 13.Bf3 (worse is 13.gf3 f4–/+) 13...b5 (better is 13...d5!? 14.c5 Nd7+=) 14.Nb5!+/– Na6 (14...cb5 15.Ba8 Pinning (15.Ba8 Deflection)) 15.Nc3 Rb8 16.a3 Bg8 17.Qc2 Re8 18.e4 (better is 18.Rae1!?+–) 18...fe4 19.Nce4 Nf5 20.Nb3 (20.Qd3!?+/–) 20...Ne3= 21.Qd3 Nf1 22.Rf1 Nc7 23.Bc1 (23.Na5!? d5 24.Nc5=) 23...d5+= 24.Ned2 dc4 25.Nc4 Nd5 26.Nc5 Qf6 (26...Rb4 27.Ne5 Be5 28.de5–/+) 27.Bb2 (27.Ne5 Qd6=) 27...Qh4 (27...Nb4 28.ab4 Rb4 29.Ne5 Rb2 30.Bc6–/+) 28.Nd6 (28.Ne5 Rb6+=) 28...Re3 29.Qc4? (better is 29.Qd2 Re7 30.g3=) 29...Qe7–/+ 30.Nce4 Nb4 31.Qb4?? (better is 31.Qc1 Re4! 32.Be4–+) 31...Rb4 32.ab4 Bd5 33.Ra1 (33.b5 Be4 34.Ne4 cb5 35.Nf2–+) 33...Be4 34.Ne4 Re4 (better is 34...Qb4 35.Kf2 Re4 36.Rb1 Rd4 37.Kf1–+) 35.Be4 Qe4 36.h3 Bd4 (36...Bd4 37.Kh2 Bb2–+) 0–1. barborski – mirosh (1775), internet, 2013.

9.Qb3 Kh8 10.Be2 c6 11.h4 Be6 12.h5 Kg8 13.0–0–0 Nd7 14.f3 ef3 15.gf3 a5 16.a3 ab4 17.ab4 b5 18.Rdg1 Nb6 19.hg6 hg6 20.d5 bc4 21.Bc4 (better is 21.Nc4 Bd5 22.Nd5 Nbd5 23.e4 fe4 24.fe4–/+) 21...Nbd5?? (better is 21...cd5 22.Bb5 Qc8–+) 22.e4+/– fe4 23.fe4 Rf2?? (better is 23...Qc7+/–) 24.ed5+– cd5 25.Nd5 Nd5 26.Bd5 Rc8 27.Kb1 Bd5 28.Qd5 Kf8 29.Bg7 Kg7 30.Qd4 Qf6+– 31.Qf6 Kf6?? 32.Ne4 (32.Ne4 Ke5 33.Nf2+–) 1–0. ferminkatcho (1740) – calinbrasov (1700), internet, 2012.

9.Be2 b6 10.Qb3 Kh8 11.h4 Ng8 12.h5 g5 13.h6 Nh6 14.0–0–0 a5 15.b5 c6 16.a4 cb5 17.ab5 Be6 18.f3 ef3 19.gf3 Nd7 20.Kb1 a4 (20...f4!? 21.e4 Re8+=) 21.Na4= Qc7?? (better is 21...Bf7=) 22.Rh6! Bh6 23.d5 Ne5 24.de6 Bg7 25.f4 gf4 26.ef4 Ng6 27.Rg1 Qe7 (better is 27...Rae8+–) 28.Nb6 Rae8 (28...Ra7 29.Qe3 Bb2 30.Kb2 Qg7 31.Kb3+–) 29.Nd5 (29.Bh5!? Qe6 30.Bg6 hg6 31.Qh3 Kg8+–) 29...Qe6 30.Bg7 Kg7 31.Bd3 Ra8 32.Qb2 Kg8 33.Nf3 Ra7 34.Nd4 Qf7 (34...Qc8 35.Nc6 Rff7 36.Na7 Qc5+–) 35.Nf5 Qd7 (35...Qf5 36.Bf5 Rf5+–) 36.Nh6 1–0. ferminkatcho (1715) – stannis (1660), internet, 2013.

9.Be2 c5 10.bc5 dc5 11.d5 Nd7 12.0–0 Nf6 13.Qb3 +=.

9.Be2 c5 10.dc5 dc5 11.b5 Be6 12.Qc2 Nd7 13.0–0 Ne5 14.a4 Nd3 15.Bd3 ed3 16.Qb3 Qc7 17.g3 (17.Nd5 Nd5 18.Bg7 Ne3 19.Bf8 Nf1 20.Rf1 Rf8 21.Qd3 Rd8=) 17...Rad8 18.a5 g5 Black intends f4 19.b6 ab6 20.ab6 Qb8 21.Nb5 f4 (21...Be5 22.f4 gf4 23.ef4 Bb2 24.Qb2+/–) 22.Nc7 Qc8? (better is 22...Bb2 23.Qb2 Bh3+=) 23.Bg7+– Kg7 24.Qc3 Kg8 25.Ne4?? (25.Qe5 Bh3 26.Qe7 Qf5+–) 25...h6? (25...Bh3 26.Nf6 Kf7 27.Nh7 Qf5 28.Nf8 Qe4–/+) 26.Nf6+– (26.Nc5?! Bh3 27.ef4 gf4+/–) 26...Kf7 27.Ra8 Qa8 28.Na8 Ra8 29.Ne4 Ra4?? 30.Qf6 Ke8 31.Qe6 fe3 32.fe3 Rf1 33.Kf1 Ra1 34.Kg2 d2 35.Nd2 Ra2 36.Qd6 Nf5 37.Qd3 Ne7 38.Kh3 Nc6 39.Ne4 Nb4?? 40.Qd6+– Re2 41.Qe6 Kd8 42.Nd6 Nc6 43.Qe8# 1–0. barborski – carlromer, internet, 2013.

9.Be2 c6 10.Qb3 Kh8 11.h4 h5 12.0–0–0 d5 13.cd5 cd5 14.Kb1 Nbc6 15.a3 (15.b5 Na5 16.Qb4 f4=) 15...Be6 16.f3 Bg8 17.Rc1 (17.b5 Na5 18.Qb4 Rc8+=) 17...a6 (17...f4 18.ef4 Nd4 19.Qd1 ef3 20.Nf3 Rf4 21.Qd2–/+) 18.Na4 b5 19.Nc5 a5 20.Bb5 ab4 21.a4 Na5 (21...ef3!? 22.gf3 f4–/+) 22.Qb4= Rb8 23.Nd7 (23.Qc3!?=) 23...Qd7+= 24.Bd7? (better is 24.Qa5 Qe6 25.Nb3+=) 24...Rb4–+ 25.Ka2 Nc4 26.Nc4 dc4 27.Ba3 Rb7 28.Be7 Rf7 (28...Rd7 29.Bf8 Bf8 30.fe4–/+) 29.Bc6 Rc7 30.Bd5 Rfe7 (30...Rce7?! 31.f4–/+) 31.Bg8 Kg8 32.Rc3?! (32.Rhf1 ef3 33.Rf3 Re8–+) 32...Re8 (32...f4 33.Rf1 ef3 34.Rf3 fe3 35.Rfe3 Re3 36.Re3–+) 33.Rhc1 Rec8 34.fe4 fe4 35.a5 Bf8 36.a6 Bb4 37.R3c2 c3 38.Kb3 Ba5 39.Ra1 Rb8 40.Ka4 Bb6 41.Ra3 Ba7?? 42.Rac3+= Rc3 43.Rc3 Bb6 44.Rc6 Bd8 45.Rg6 Kf7 46.Rh6 Be7? 47.Rh5+– Kg6 48.Re5 Bf6 49.Re4 Ra8 50.Ka5 Kf5 51.Rf4 Ke6 52.g3 (52.g3 Bd8 53.Kb5 Rb8 54.Kc4 Rc8 55.Kd3+–) 1–0. ferminkatcho (1715) – juwentus11 (1695), internet, 2013.

9.Be2 Be6 10.0–0 Bf7 11.f3 d5 12.cd5 Bd5? (better is 12...ef3!? 13.Bf3 Nd5 14.Nd5 Bd5=) 13.fe4+/– fe4 14.Nd5 (14.Nce4?! Nf5=) 14...Qd5?? (better is 14...Rf1 15.Bf1 Nd5+/–) 15.Bc4+– Qc4 1–0. barborski – carlromer, internet, 2013.

6.Be2 0–0

7.0–0 a5 8.ba5 e4 9.Bg7 Kg7 10.Ng5=.

7.0–0 a5 8.b5 b6 9.Qc2 Bb7 10.a3 Nd7 11.d4 e4 (11...ed4 12.ed4 d5 13.Nbd2+=) 12.Nfd2 (12.Ng5 d5 13.cd5 Bd5+/–) 12...f5+= 13.d5 Ne5 14.g3 g5 15.Be5 (15.f3 ef3 16.Nf3 Nf3 17.Bf3 Bb2 18.Qb2 Ng6+=) 15...Be5= (worse is 15...de5 16.g4+/–) 16.Nc3 Qe8 17.Rac1 h5 (17...g4=) 18.Nde4?? (better is 18.f3+=) 18...fe4–/+ 19.Ne4 Qg6 20.Bd3 Qg7 21.f4 (21.Rce1!?–/+) 21...gf4–+ 22.ef4 Bd4 (22...Bf4!? 23.Rce1–+) 23.Kh1–/+ Bc8 24.Ng5 Bf5 (better is 24...h4–/+) 25.Rce1 (25.Bf5!? Nf5 26.Ne6=) 25...Bg4 0–1. ejdrzej (1695) – mickeys (1865), internet, 2013.

7.0–0 a5 8.b5 e4 =.

7.0–0 a6 8.Nc3 Nbc6 9.Qb3 Be6 10.Ne4 b5 11.d4 (11.Neg5!? bc4 12.Bc4 Bc4 13.Qc4=) 11...bc4 12.Qa4 (12.Bc4? Bc4 13.Qc4 d5–+) 12...Qb8 13.a3 Qb6 (13...ed4 14.Nd4 Nd4 15.Bd4 (worse is 15.ed4 a5–/+) 15...Bd4 16.ed4+=) 14.Rfd1 (better is 14.de5 Qb5 15.Qc2 Ne5 16.Rac1=) 14...d5–/+ 15.Nc5 e4 (15...a5 16.b5 ed4 17.ed4–+) 16.Ne1 (16.Nd2 a5 17.b5 Na7–/+) 16...a5 17.b5 Na7 18.Qc2 Nb5 19.Rab1 Qc6 20.a4 Nd6 21.Ba3 Rfb8 22.f3 (22.Rb8 Rb8 23.Qd2 Qb6–+) 22...Nef5 23.Qd2 Bf6 (23...ef3 24.Rb8 Rb8 25.Bf3–+) 24.fe4 (24.Nc2 Rb1 25.Rb1 ef3 26.Bf3 Nh4–+) 24...Ne4–+ Black gets deadly initiative 25.Ne4 de4 26.Rb8 Rb8 27.d5 Qa4 28.de6 Qa3 29.ef7 Kf7 30.Qd5?! (30.Bc4 Kg7 31.Nc2–+) 30...Kg7 31.Qd7 (31.Nc2 Qc3 32.Qc4 Qc4 33.Bc4 Rb2–+) 31...Kh8 (31...Kh6 32.Nc2 Qc3 33.Qc7 Qc2 34.Qf4 Bg5 35.Qb8 Qe2 36.Ra1–+) 32.Nc2 Qc3 0–1. Tilp,Andreas – Richter,Roland, corr DDR, 1988.

7.0–0 a6 8.d3 Nbc6= 9.Bc3 b5 10.Nfd2 Be6 11.Bf3 f5 12.Bc6 Nc6=+ 13.a3 Qe7 14.cb5 ab5–/+ 15.e4 f4 16.Nf3 d5 17.ed5 Bd5–/+ 18.Nbd2 Kh8 19.Ne4 Be4 20.de4 Rfd8 21.Qe2 Nd4 22.Bd4 ed4 23.Qd3 c6 24.Rfc1 Rac8 25.Rc5+= h6 26.Rac1 Qe6 27.h3 Rd6 28.e5+/– Rdd8 29.Qe4 d3+= 30.Nd2 f3 31.Qf3 Be5 32.Rc6 Rc6+= 33.Qc6?? Qc6= 34.Rc6 Bf4 35.Nf3 d2 36.Nd2 Rd2 37.g3 Bd6 38.Rc8 Kg7 39.Rd8? Kf7 40.Kf1? Ke6 41.Ke1? Ra2 42.Rg8 Kf7 43.Rd8 Be7 44.Rd3 g5 45.g4? Bf6 46.Kf1 Kg6 47.Kg2 h5 48.Kg3 h4 49.Kf3 Bb2 50.Rd5 Ra3 51.Kg2 Rb3 52.Rb5 Bd4 53.f3 Rb2 54.Kh1 Rf2 55.Rf5 Be3 56.b5 Bf4 57.b6 Rf3 58.Rb5 Rh3 59.Kg2 Rg3 60.Kf2 h3 61.b7 Bb8 62.Rb1 Rg4 63.Rb3 Rf4 64.Kg1 g4 65.Rb5 g3 66.Rb3 Ba7 (66...Ba7 67.Rb6 Bb6 68.Kh1 Rf1#) 0–1. hal1958 – hamgon, playchess.de, 2003.

7.0–0 c6 8.d3 Qc7 9.Qc2 Na6 10.a3 Bd7 11.Nbd2 Rac8 12.Rac1 d5 (12...Rfe8 13.Rfd1+=) 13.h3 (13.cd5!? Nd5 14.d4 ed4 15.Bd4+/–) 13...c5 (13...f6 14.d4 e4 15.Ne1+=) 14.b5 Nb8 15.cd5 Nd5 16.Qb3 Be6 17.Nc4 e5 becomes the focus of attention 17...Nb6 18.a4 (18.Nfe5? Be5 19.Be5 Qe5 20.Ne5 Bb3–+) 18...N8d7 19.a5 (19.Ng5!? Bd5 20.a5+=) 19...Nc4+= 20.dc4 Qa5 21.Bc3 Qc7 22.Qb2 (22.Ra1 Ra8=) 22...b6 (22...f6 23.Ra1 Ra8 24.Rfd1+=) 23.Ng5 Rce8 (23...Bf5 24.Rcd1=) 24.Ne6 Re6 25.f4 Ree8 26.Bg4 Nf6 (better is 26...f5!? 27.Bf3 h6=) 27.Be5+= Re5 28.Qe5 Qe5 29.fe5 Ng4 30.hg4 Be5 31.Rcd1 Ra8 (31...h6 32.Rd7 Bb8 33.e4+–) 32.Rd7 f6 33.g5 fg5 (33...f5 34.g4 fg4 35.Rff7+–) 34.Rff7 a6? (34...Bc3+–) 35.ba6 Ra6 36.Rfe7 (36.Rh7?! Bg3 37.Kf1 Ra1 38.Ke2 g4+–) 36...Ra1 37.Kf2 Kf8 38.Re5 1–0. GuestVCXX – GuestTJBVkevinski, freechess.org, 2017.

7.0–0 c6 8.d4 ed4 9.Nd4 Nf5 10.Nc3 Nd4 11.ed4 Bf5 12.Bf3 Nd7 13.b5 Rc8 14.bc6 bc6 15.Ba3 Nb6 16.Be2 Re8 17.Rc1 Qd7 18.Bd6 Qd6 19.c5 Qd4 20.Qd4 Bd4 21.cb6 ab6 22.Bf3 c5 23.Nd5 Rb8 24.a4 Be4 25.Nc7 Rb7 26.Ne8 Bf3 27.gf3 Re7 28.Rfe1 1–0. brother – ansusu, internet, 2013.

7.0–0 Nbc6 8.b5 Nb8 9.d4 Bf5 10.Nbd2 Nd7 11.Nh4 h5 (11...ed4 12.Bd4 Be6 13.Bg7 Kg7 14.Ne4+=) 12.Nf5+/– Nf5 13.a4 (better is 13.Bd3 Qf6 14.Be4+/–) 13...ed4+= 14.ed4 Nd4 15.Bd4 Bd4 16.Rc1 Bg7 17.Nf3 Nc5 18.Qd5 Re8 19.a5?? (better is 19.Rfe1–/+) 19...Re2–+ 20.a6 ba6 21.ba6 Na6 22.Ng5 White plans c5 22...Qd7 (22...Re7 23.Rb1–+) 23.c5?? (better is 23.Qa8 Qe8 24.Qa7+=) 23...Rae8–+ 24.c6 Qf5 25.Qf5 gf5 26.Ra1 (26.Nh3–+) 26...Ba1 0–1. brother – badboy2006 (1655), internet, 2013.

7.0–0 Re8 8.Nc3 Be6 9.d4 ed4 10.Nd4 Qd7 11.Ne6 Qe6 12.Qc2 Nbc6 13.b5 Ne5 14.Na4 c6 15.Rac1 Rac8 16.bc6 bc6 17.Bf3 d5 18.cd5 Nf3 19.gf3 cd5 20.Qe2 Nf5 21.Bg7 Kg7 22.Nc5 Qf6 23.Kh1 Nh4 24.f4 Qd6 25.Qg4 Nf5 26.Nd3 d4 27.Ne5 de3 28.fe3 Ne3 29.Qf3 Nf1 30.Rf1 Re5 31.fe5 Qe5 32.Kg2 Qf5 33.Qa3 1–0. brother – matima, internet, 2013.

7.0–0 Re8 8.d4 ed4 9.Bd4 (9.Nd4? c5–+) 9...Bd4 10.ed4 Nf5 11.Nc3 Qf6 12.Nd5 Qd8 13.Re1 c6 14.Nc3 Nd7 15.Bd3 Nf6 16.Re8 Qe8 17.Qd2 Qd8 18.a3 b6 19.Re1 d5 20.c5 b5 21.Ne5 Qc7 22.Bf5 Bf5 23.Qg5 Kg7 24.g4 (24.Ne2 Nh5 25.Nf4 Nf6+=) 24...h6 25.Qf4 (25.Qh4 Bd7+=) ½–½. Labahn,Wolfgang – Freese,H, Espelkamp II–Bunde I, 1981.

7.0–0 Nf5 8.d3 b6 (8...Nc6 9.b5 Nce7 10.d4+=) 9.Qc2 (9.e4 Nd4+=) 9...Bb7 (9...Qf6 10.e4 Nh4 11.Nbd2=) 10.Nbd2 Nd7 11.Nb3 (11.e4 Ne7+/–) 11...c5 (11...Nh4 12.Nh4 Qh4 13.f4=) 12.b5 Rc8 13.a4 Re8 14.e4 Nd4 15.Nfd4 ed4 16.a5 ba5 (16...f5 17.ef5 Qg5 18.f3 gf5 19.Rfe1+=) 17.Ra5 Ra8 18.Rfa1 Qb6 19.Bg4 Nf6 20.Bh3 a6 21.Bc1 ab5 22.Rb5 Qc7 23.Rba5 Ra5 24.Ra5 Bc8 25.Bc8 Rc8 26.Qa2 (26.Bf4 Nd7+=) 26...Nd7 (26...Rb8 27.Ra7 Qd8 28.Bg5+=) 27.f4 (27.Ra7 Qd8+/–) 27...Qd8 28.Ra7 Nb8 29.Na5 Nc6 30.Nc6 Rc6 31.g3 (31.Ra8 Rc8 32.Ra7 Rc6=) 31...Rc8 32.Bd2 (32.Qa4 Rb8+=) 32...Qe8 (32...Rb8 33.Qc2=) 33.Qa6 Bf8 (33...Qe6 34.Re7 Qg4 35.Qa4=) 34.Kf2 (34.Qb5 Kg7+=) 34...Rb8= 35.Qa2 Qe6 36.Be1 (36.Kg2 f5 37.Qc2 fe4 38.de4 Re8+=) 36...Qh3 (36...f5 37.Qe2+=) 37.Kg1= Qg4 (37...Bg7 38.Rf7!? d5 39.Rg7 Kg7 40.Qa7 Kh6 41.Qb8+–) 38.Qc2 (38.Rf7 Qd1 39.Kf2 Qd3–+ (39...Kf7?! 40.Qa7 Be7 41.Qb8+=)) 38...h5 (38...f5 39.Bd2=) 39.Kg2 Qe6 40.Ra1 (40.Ba5 Bg7+=) 40...Qd7 (40...Bg7 41.Bd2=) 41.Rb1 ½–½. Kwiek,Janusz – Hoszowski,Piotr, corr 1AMM Poland, 1991.

7.0–0 Nf5 8.d4+= f6 (8...e4 9.Nfd2 Qh4 10.Nc3+/–) 9.Qb3 Kh8 (9...Re8 10.Nc3+=) 10.Rd1 Qe8 (10...a5 11.Nc3+=) 11.d5 (11.Nc3 ed4 12.Nd5 Qc6+/–) 11...Nd7 12.Nc3 Nh6 13.h3 (13.Qa3 Qe7+/–) 13...e4 (13...f5 14.Nb5 Qd8 15.a3+=) 14.Nd4+/– Nb8 15.b5 (15.c5 a5+/–) 15...Nf5 (15...f5 16.Qc2+=) 16.Na4 (16.Nf5 Bf5 17.a4 Nd7+=) 16...Nd4+= 17.Bd4 b6 (17...a6 18.b6 c5 19.dc6 Nc6 20.Nc3+=) 18.Nc3+/– Nd7 19.Qb2 Qe7 20.a4 f5 (20...a5 21.ba6 Ba6 22.Qc2+=) 21.a5+/– Bd4 22.Rd4 Kg8 23.ab6 cb6 24.Na4 (24.Qb4 Nc5+=) 24...Bb7 (24...a6 25.ba6 Ra6 26.Qb1+=) 25.Ra3 Ne5 26.Qa2 Qg5 (26...Qc7 27.Nc3+=) 27.Nc3+/– Nf3 28.Bf3 ef3 Threatening mate: Qxg2 29.g3 Rfe8 30.Nd1 a5 (30...h6!?+/–) 31.ba6+– Bc8 32.Rf4 (32.Qb3 Qd8 33.Qb5 Bd7+/–) 32...Qh6 33.Rh4 Qg7 34.Rf4 (34.Kh2 Qa7+/–) 34...g5?? (better is 34...Qh6=) 35.Rf3+– Qh6 36.h4 (36.Kg2 g4 37.hg4 fg4+–) 36...gh4 37.gh4 Re4 38.Rg3 Rg4 39.Rg4 fg4 40.Qb3 Qh4 41.Qb6 g3 42.fg3 Qg3 43.Kf1 Bh3 (43...Bg4 44.Ra2 Bd1+–) 44.Ke2+= Bg4 45.Kd2 Bd1?? (better is 45...Qg2 46.Kc1 Qf1+=) 46.Kd1+– Rf8 Black threatens to counter with Qg2 47.Kc2 Rf2 48.Kb3 Qg6 (48...Rf3 49.Ka2 Rf2 50.Kb3=) 49.Ka4 Rc2 50.Qb5 Qe4? (50...Rf2 51.a7 Rf8 52.Qb3+–) 51.Kb4 (better is 51.a7!? Rc4 52.Ka5 Rc8+–) 51...Rb2 (51...Rc1+–) 52.Rb3 Rb3 53.Kb3 Qe3?? (better is 53...Qb1 54.Kc3 Qc1 55.Kd4 Qd1 56.Ke4 Qg4 57.Kd3 Qd1 58.Ke4 Qg4 59.Kd3 Qd1 60.Ke4=) 54.Ka4+– Qc3 (54...Qe2 55.Qb8 Kf7 56.Qc7 Kg8 57.Qc8 Kg7 58.Kb5+–) 55.Qb3 Qa1 56.Qa3 Qd4 57.Kb5 h5 (57...Qe5+–) 58.a7 (58.a7 Qa7 59.Qa7+–) 1–0. Neuwald,Volker – Pollermann,Werner, Baden–ch AT Waldshut, 1991.

7.0–0 Nf5 8.e4 Nd4+=.

7.0–0 Bg4 8.h3 Be6 9.d4 e4 10.Ng5 Bd7 (10...d5 11.cd5 Qd5 12.Ne6 Qe6 13.Qc2+=) 11.Qc2 (better is 11.Ne4 f5 12.Nec3+/–) 11...f5= 12.d5 (12.h4 a5 13.b5 Bf6=) 12...h6 13.Ne6 Be6 14.de6 Bb2 15.Qb2 Qe8 16.c5 d5 17.Nc3 (17.Qe5!? Qd8 18.b5=) 17...c6 18.f3 Nc8 (better is 18...ef3 19.Rf3 Qc8–/+) 19.fe4+= Qe6 20.ef5 (20.ed5 cd5 21.Qd2 Ne7+/–) 20...Rf5 (20...Qe3 21.Kh2 Rf5 22.Rf5 gf5 23.Rf1=) 21.Rf5 (better is 21.e4 de4 22.Bg4+/–) 21...Qf5?? (21...gf5 22.Qd2+=) 22.Rf1?? (better is 22.Bg4 Qe5 23.Bc8+–) 22...Qe5+/– 23.Rf3 (23.e4 Ne7+/– (worse is 23...de4 24.Bc4 Kh8 25.Rf8 Kh7 26.Rf7 Kg8 27.Qd2 Qg7 28.Qd8 Kh7 29.Qf6 Qf7 30.Qf7 Kh8 31.Qg8)) 23...Ne7 24.e4 d4? (better is 24...Qd4 25.Rf2 Kg7+=) 25.Bc4+– Kh7 26.Qf2 (better is 26.Rf7 Kh8 27.Ne2+–) 26...Nf5?? (better is 26...dc3 27.Rf7 Kh8+/–) 27.ef5+– dc3 (27...gf5 28.Kh1 Na6 29.Rf5 Qg7+–) 28.fg6 Kg6 (28...Kg7 29.Rf7 Kg6 30.Bd3 Kg5 31.Rf5 Kg6 32.Rf6 Kg7 33.Rg6 Kh8 34.Qf8 Kh7 35.Qh6) 29.Rg3 (29.Bd3 Kg5 30.Rf5 Kg6 31.Rf6 Kg7 32.Rg6 Kh8 33.Qf8 Kh7 34.Qh6) 29...Kh7 (29...Qg3 30.Qg3 Kf6 31.Qd6 Kg5 32.h4 Kf5 33.Qe6 Kf4 34.Kf2 c2 35.g3) 30.Qf7 Kh8 (30...Qg7 31.Qg7) 31.Rg8 1–0. typ48 – tinarg5551, internet, 2013.

7.0–0 h6 8.Qc2 Be6 (8...Nbc6 9.a3=) 9.d4 Nd7 10.Rd1 Qe8 (10...Nc6 11.Qe4=) 11.d5 Bg4 12.h3 Bf3 13.Bf3 f5 14.e4 (14.c5 e4 15.Bg7 Kg7+=) 14...Nf6 15.Nd2 f4 (15...a5 16.a3+=) 16.Nf1 (16.c5 Qb5 17.a3 a5+/–) 16...g5 (16...a5 17.a3+=) 17.Nh2 (17.c5 Qg6+/–) 17...h5 (17...a5 18.a3+=) 18.a4 (18.c5 Qg6+/–) 18...Qg6 19.Qe2 (19.a5 g4 20.hg4 hg4+=) 19...Kh8 (19...a5 20.b5+=) 20.c5 Rg8 21.g4 (21.Rac1 Raf8+/–) 21...fg3 22.fg3 g4 23.hg4 hg4 (23...Bh6 24.Rf1+/–) 24.Bg2 (24.Ng4!? Ng4 25.Bg4+–) 24...Bh6 25.Bc1 (25.a5 Rgf8+/–) 25...Raf8 26.Bh6 Qh6 27.Rac1 Rc8 (27...Nh5 28.Rc3 Qg6 29.Qb5+/–) 28.Rc2 (28.Rf1 Rcf8+=) 28...Qg5 29.Qd2 (29.Rf1 Rgf8+=) 29...Qg6 30.Qe3 Ned5 31.Rd5?? (better is 31.Qb3 Ne7 32.cd6 cd6 33.Rd6=) 31...Nd5–+ 32.ed5 (32.Qd2 Ne7–+) 32...Qc2 33.Qh6? (better is 33.Be4 Qd1 34.Kg2–+) 33...Qh7 34.Qf6 Qg7 (better is 34...Rg7–+) 35.Qh4= Qh7 36.Qf6 Rg7 37.Ng4 Qg6 38.Bh3 (38.Qh4 Rh7 39.Qf6 Qf6 40.Nf6 Rh6–+) 38...Qf6 39.Nf6 Rg3 (better is 39...Rd8!? 40.Kg2–+) 40.Kh2 Rh3 41.Kh3 Kg7 (41...Rd8 42.Kg4–+) 42.Ne4 dc5 43.bc5 Rd8 44.d6 cd6 45.cd6 Kf7 46.Kg4 Ke6 47.Nc5 Kd5 48.Nb7 Rd7 49.Na5 Rd6 50.Nb7 Rb6 (50...Rb6 51.Na5 Kc5–+) 0–1. Hollstein,Gerhard – Horras,Michael, St Ingbert op, 1990.

7.0–0 h6 8.Nc3 Kh7 9.h3 Be6 10.Qc2. Speedy – wernt, internet, 2017.

7.0–0 h6 8.d4 Nbc6+=.

7.Qb3 a5 8.a3 ab4 9.ab4 Ra1 10.Ba1 Re8 11.0–0 Nd7 12.d4 Nf5 13.de5 Ne5 14.Nbd2 Qe7+=.

7.Qb3 a5 8.a3 e4 9.Bg7 Kg7 10.Qc3 f6 11.Nd4 ab4 12.ab4 Ra1 13.Qa1 Nbc6 14.b5=.

7.Qb3 a5 8.a3 Bg4 9.0–0 ab4 10.ab4 Ra1 11.Ba1 f5 12.h3 Bh5 13.Nc3 Qd7 14.d4 e4=.

7.Qb3 Nbc6 8.Nc3 (8.b5 Na5 9.Qa4 c5 10.Bc3 b6 11.d4 ed4 12.ed4 a6 13.dc5 ab5 14.cb5 dc5=; 8.0–0 Bg4 9.Nc3 a6 10.d3 Qd7 11.a4 f5 12.c5 Kh8 13.Rfd1 f4 14.b5 ab5+=) 8...Nf5 (8...Be6 9.0–0 d5 10.d3 f6 11.b5 Na5 12.Qa4 c6 13.Ba3 cb5 14.Qb5 a6+=; 8...f5 9.c5 Kh8 10.b5 Na5 11.Qb4 b6 12.d4 ed4 13.ed4 Re8 14.0–0 Nd5+=; 8...a6 9.0–0 Bf5 10.d3 Qd7 11.a3 Rfd8 12.Ne4 b5 13.Qc2 Rab8 14.Nfd2 Be6+=) 9.d3 (9.0–0 Re8 10.d3 a6 11.Ne4 Nh4 12.Nh4 Qh4 13.f4 Qh6 14.Rae1 ef4=) 9...Be6 10.b5 (10.0–0 a6 11.Ne4 Qe7 12.a4 b5 13.ab5 ab5 14.Nfg5 Rfb8+=) 10...Na5 11.Qc2 (11.Qa4 b6 12.e4 Ne7 13.Ng5 Bd7 14.0–0 a6=) 11...c6 (11...a6 12.0–0 ab5 13.cb5 c6 14.Rfb1 Qe7=) 12.a4 (12.0–0 Rc8 13.Qa4 Re8 14.Rab1 b6=) 12...Rc8 (12...d5 13.bc6 bc6 14.Na2 dc4+=) 13.Nd2 (13.Ne4 d5 14.Nc5 dc4=) 13...d5 14.Ba3 (14.0–0 Re8=) 14...Re8 (14...d4+=) 15.Bb4 (better is 15.0–0!?+=) 15...d4–/+ 16.Nd1 de3 17.fe3 e4! 18.d4 (18.Ne4 Ba1; 18.de4 Ba1) 18...Qh4 19.Nf2? (better is 19.Kf1 Ng3! 20.hg3 Qh1 21.Kf2–+) 19...Ne3 20.Qc3 (20.Qe4 Qe4 21.Nfe4 Bd4 22.Ba5 Ng2 23.Kd1 Ne3 24.Kc1 Ba1 25.Nd6–+) 20...Bd4! (20...Bd4 21.g3 Bc3 22.gh4 Nc2 23.Kd1 Nb4–+) 0–1. Junge,Wolfgang – Matthaei,Egon, corr DDR–ch M624, 1978.

7.Qb3 e4 8.Bg7 ef3? (better is 8...Kg7 9.Nd4 (9.Ng5 f5= 10.Qc3 Kg8 11.0–0 Nec6 12.Nh3 Qf6 13.a3 Ne5 14.f3 ef3 15.Bf3 Nf3=) 9...c5 10.Nc2 cb4 11.Nb4 Nbc6 12.d3 Nb4 13.Qb4 ed3 14.Bd3 Nc6 15.Qb2 f6+=) 9.Bf8+– fe2 10.Ke2?? (better is 10.Be7 Qe7 11.Nc3+–) 10...Qf8+= 11.Nc3 Be6 12.d4 c6 13.c5?? (better is 13.d5 Bf5 14.e4+=) 13...dc5 (13...Bb3 14.ab3 Nd7 15.Ne4–+) 14.bc5?? (14.Qb2 cd4 15.ed4–+) 14...b6 (14...Bb3 15.ab3 Qc8 16.Rhd1–+) 15.Ne4?? (better is 15.Qb4–/+) 15...Nd5 (better is 15...Bb3 16.ab3 Nd7 17.cb6 ab6–+) 16.Rac1 ½–½. Hasler,Ulrich – Kurchatov,Evgeny Ivanovich, corr ICCF W–ch I1054, 1964.

7.Qb3 Nf5 8.Nc3 (8.0–0 a5 9.e4 Nh4 10.b5 a4 11.Qe3 Nf3 12.Bf3 Be6 13.Na3 Nd7 14.Rad1=) 8...Nc6 (8...a5 9.b5 Nd7 10.Qc2 Nc5 11.Ne4 Nh4 12.Nh4 Qh4 13.Nc5 dc5 14.0–0=) 9.b5 (9.0–0 a6 10.Ne4 Nh4 11.Nh4 Qh4 12.f4 Bf5 13.Nc3 e4 14.Nd5+=) 9...Na5 10.Qc2 (10.Qa4 c5 11.0–0 e4 12.Ne1 a6 13.ba6 ba6 14.Rb1+=) 10...Be6 11.d3 c6 (11...a6 12.0–0 ab5 13.Nb5 Nc6 14.d4=) 12.0–0 Rc8 13.bc6 (13.Qa4 Re8 14.Rab1=) 13...Nc6 14.Qd2 (14.Qa4=) 14...h5 15.Rab1 Bh6 16.Qd1 Na5 17.Nd5 (17.Bc1!? Bg7 18.e4+=) 17...Bd5= 18.cd5 b6 (18...Be3!? 19.fe3 Ne3=) 19.Qa4+/– Ne7 20.e4 f5 21.Bc1 f4 (21...Bc1!? 22.Rfc1 Rc1 23.Rc1 a6+=) 22.h4 Kh8 23.Bb2 Kh7 24.Rfc1 Rg8 25.d4 g5 (better is 25...ed4 26.Bb5 Nb7+–) 26.hg5 (worse is 26.de5 g4 27.Rc8 Nc8 28.Ng5 Bg5 29.hg5 f3+–) 26...Bg5 27.de5 de5 28.Be5 Bh6 29.Bf6 (29.Bf6 Rc1 30.Rc1+–) 1–0. Mueller,Klaus Detlef – Reppe,K, corr, 1982.

7.Qc1 a5 8.b5 =.

7.Qc1 Nf5 8.Nc3 (8.0–0 Qf6=) 8...Re8 9.d3 Nd7 10.0–0 Nf8 (10...a5 11.a3=) 11.e4 Ne7 12.Qc2 Ne6 13.Nd5 c6 14.Ne7 (14.Ne3 Qb6 15.c5 dc5+=) 14...Qe7 15.a4 f5 16.Rae1 a5 17.ba5 (17.b5 Rf8=) 17...Ra5 18.Bc3 Ra7 19.Qb3 (better is 19.ef5!? gf5 20.a5=) 19...Nc5–/+ 20.Qc2 fe4 (20...Ra4 21.Ra1 b5 22.cb5 cb5 23.Rfb1–/+) 21.de4 Ra4 22.Ra1 Ra1 23.Ra1 Rf8 24.Bb4 Ne6 (24...b6 25.Bc5 bc5 26.Qd3–/+) 25.Ra7 (25.Qd2 Nd4 26.Nd4 ed4–/+) 25...c5 (25...Nf4 26.h3–/+) 26.Be1 (26.Bd2 Qf6+=) 26...Nd8 (26...Nf4 27.Bd1–/+) 27.Qa4 (27.Bd2 Nc6 28.Ra8 Be6 29.Rf8 Qf8+=) 27...Bd7 (27...Bf6 28.Qd1+=) 28.Qb3 Bc6 Black gets the initiative 29.Qe3 Ne6 30.Nd2 (30.Bd2 Nd4+=) 30...Nd4 31.Bd1 (31.Qd3 Qh4–/+) 31...Qc7 (31...Qh4 32.Be2–/+) 32.f3 (32.Bg4 Qb6 33.Ra2 Qd8–/+) 32...Qb6 33.Qa3 (33.Ra2 Qd8–/+) 33...Bh6 34.Ra8 Bg5 (34...Be3 35.Kh1 Ra8 36.Qa8 Kg7 37.Qa3–/+) 35.Rf8 Kf8 36.Nb3 (36.Qd3 Qb2–/+) 36...Qc7 (36...Qa6 37.Qa6 ba6 38.h4–+) 37.Qa8 (37.Nd4 cd4 38.Bb4 Ke7–/+) 37...Qd8 (37...Kg7 38.Qa2–/+) 38.Qd8 Bd8 39.Na5 (39.Nd4 cd4 40.Bd2 Bb6–/+) 39...Ba5 40.Ba5 b5 (40...Bd7 41.Bc7 Ke7 42.Kf2–+) 41.cb5 Bb5 42.Kf2 Ke7 43.g3 d5 44.ed5 (44.Bc7 de4 45.Be5 Bd3–/+) 44...Kd6 45.f4 e4 46.Ke3 Kd5 47.g4 (47.Bg4 Bd3–+) 47...Bd3 (47...h6 48.Bc7–+) 48.Bd8 (48.Bc7 h6–+) 48...Nc6 (48...Kc4 49.Bf6–+) 49.Bf6 Kc4 50.h4 Nb4 51.Be5 Nd5 52.Kd2 e3 53.Ke1 Nb4 54.Be2? (better is 54.g5–+) 54...Nc2 55.Kd1 (55.Kf1 Nd4 56.Bd3 Kd3–+) 55...Nd4 56.Bd4 (56.Bd3 Kd3 57.Kc1 e2–+) 56...Be2 (56...cd4 57.Bd3 Kd3 58.f5 gf5 59.gf5 e2 60.Kc1 Kc3 61.Kb1 Kb3 62.Kc1 e1Q; 56...Kd4 57.Bd3 c4 58.Be2+/–) 57.Ke2 cd4 (57...Kd4?! 58.f5 gf5 59.gf5–+) 58.g5 (58.f5 gf5 59.gf5–+) 58...d3 (58...d3 59.Ke1 Kc3–+) 0–1. Lanca,I – Talla,Vladimir (2240), Konik op Czechia, 1995.

7.Qc2 b6 8.d4 (8.0–0 a6+=) 8...Nbc6 (8...ed4 9.Bd4 Bf5=) 9.b5+= Na5 10.de5 Bf5 11.e4 Be6 12.Nbd2 (12.0–0 de5 13.Rd1 Qc8 14.Ne5 c6+/–) 12...c6 13.0–0 Qc7 (13...de5!? 14.Be5 Be5 15.Ne5 Qc7+/–) 14.ed6+– Qd6 15.Bg7 Kg7 16.a4 Qc5 17.Rac1 cb5? (17...Rad8 18.Qb2 Kg8 19.e5+–) 18.cb5 (better is 18.Qb2 Kg8 19.cb5+–) 18...Qc2+/– 19.Rc2 Rac8 20.Rfc1 Nb3 21.Nb3 Bb3 22.Rc8 Rc8 23.Rc8 Nc8 24.Nd4 Ba4 25.Nc6 (25.f4 Nd6 26.e5 Ne4+=) 25...Kf6 (25...Nd6 26.Na7 Ne4 27.Nc8=) 26.f4 Ke6 27.g4 (better is 27.Bg4!? f5 28.Nd4 Kd6 29.ef5=) 27...Kd6+= 28.Nd8 f6 29.f5 (29.Kf2 Ne7+=) 29...g5 30.Kf2 Kc5?? Attacking the isolated pawn on b5 (better is 30...Bb3!?+=) 31.Ne6 (31.e5!? Bb3 32.ef6+–) 31...Kb4 32.Nf8 h6 33.Nd7 (33.Nh7 Bb5 34.Nf6 Bc6+/–) 33...Nd6? Increasing the pressure on the isolated pawn on b5 (33...a5 34.Nf6 Bb3 35.Bd3+=) 34.Kf3 (34.Nf6 Kc5 35.e5 Nb5 36.Ne4 Kd4 37.Bb5 Bb5 38.Nd6+–) 34...Bb5= 35.Bb5 Kb5 36.Nf6 a5 37.Ng8?? a4–+ 38.Nh6?? a3 39.f6 a2 40.f7 Nf7! 41.Nf7 a1Q 42.Ng5 Qf6 (42...Qf6 43.Kg3 Qg5–+) 0–1. ourang – iteano1976, internet, 2013.

7.Qc2 c6 8.d3 a5 9.b5 =.

7.Qc2 c6 8.d3 f5 9.Nbd2 Nd7 10.0–0 h6 11.a4 Nf6 (11...Qc7!?+=) 12.c5+/– dc5 13.Qc5 Nd7 14.Qc2 Nd5 Black intends f4 15.e4 Nf4 16.Rfe1 Ne2 17.Re2 f4 18.d4 Qe7 19.de5 (19.d5!?+/–) 19...Ne5+= 20.Ne5 Be5 21.Be5 Qe5 22.Nf3?? (better is 22.Rd1+=) 22...Qa1–+ (22...Qa1 23.Re1 Qg7–+) 0–1. ourang – virgis (1675), internet, 2013.

7.Qc2 c6 8.d3 Bg4 9.Nbd2 Bf3 10.Bf3 a5 11.b5 cb5 12.cb5 Ra7 (12...Nd7!?+=) 13.Rb1 b6 14.a4 (14.Rc1 Nd7+/–) 14...Nd7 15.Nc4 (15.Rc1 d5+=) 15...Nc5?? (better is 15...d5!? 16.Na3 Rc7–/+) 16.d4 (16.0–0!?+/–) 16...ed4= 17.ed4 Ne6 18.Rd1 Rc7 19.Qb3? (19.Qd3 Nf5 20.Nb6 Ned4 21.Bd4 Re8 22.Kf1 Nd4+=) 19...Ng5?? (better is 19...Nf5–+) 20.0–0 (20.Bg4!?+=) 20...Nf3–/+ 21.gf3 Nd5 22.Ne3 Qg5 23.Kh1 Ne3 24.Qe3 Qe3 25.fe3 d5 26.Rc1= Rfc8 27.Rc7 Rc7 28.Rc1 Rc1 29.Bc1 f5 30.Kg2 Kf7 31.Kf2 Ke6 32.Ke2 h5 33.Kd3 g5 34.e4 de4 35.fe4 fe4 36.Ke4+/– g4 37.Bf4 h4 38.Bc7+– Bh6 39.Bb6 g3 40.hg3 h3 41.d5 Kd6 42.Bg1 Bd2 43.Bh2 Kc5 44.Ke5 Kb4 45.d6 Ka4 46.d7 Bg5 47.b6 Bd8 48.b7 Bc7 49.Ke6 Kb5 50.d8Q! Bd8 51.b8Q Bb6 52.g4 1–0. ourang – kobieciarzz, internet, 2013.

7.Qc2 Bf5 8.d3 Re8 9.Nbd2 Bd7 10.0–0 a6 11.c5 (11.Ne4 Nbc6 12.Bc3 b5+=) 11...dc5 (11...Nbc6 12.a3+=) 12.bc5 Nbc6 13.a3 a5 14.Nb3 a4 15.Nbd2 Be6 (15...Nd5 16.Ne4+=) 16.Rfd1 Nd5 17.Ne4 f5 (17...Nf6 18.Ned2+= (18.Be5?? Ne5 19.Nd4 Bd7–+)) 18.Nc3 (18.Neg5!? Ra5 19.g3+=) 18...Nc3 19.Qc3 Bb3 20.Rd2 Re7 21.d4 ed4 22.ed4 (better is 22.Bc4 Kh8 23.ed4 Bc4 24.Qc4=) 22...Na7?? (better is 22...Qd5–/+) 23.Bc4+– Bc4 24.Qc4 Kh8 25.Rad1 (25.d5 Qd7+–) 25...c6 26.h3 Nb5 27.Ng5 (better is 27.d5 Qg8 28.Bg7 Kg7 29.Qc1+–) 27...Bh6?? (better is 27...Qd5 28.Qd5 cd5=) 28.Nf7 (better is 28.d5 Bg7 29.dc6+–) 28...Rf7 29.Qf7 Bd2 30.Rd2 Qf8?? (better is 30...Qd5 31.Qb7 Re8 32.Qc6 Qc6 33.d5 Kg8 34.dc6 Rc8+/–) 31.Qb7 (31.d5 Nd4 32.Bd4 Qg7 33.Qg7) 31...Qe8 (31...Kg8 32.d5 Rb8 33.Qc6+–) 32.Kf1 (32.d5 Nd4 33.Bd4 Qe5 34.Be5 Kg8 35.Qg7) 32...Rb8 (32...Ra7 33.d5 Kg8 34.Qc6 Qc6 35.dc6 Rc7 36.Rd8 Kf7+–) 33.Qa6 (33.d5 Nd4 34.Bd4 Qe5 35.Be5 Kg8 36.Qg7) 33...Nc7+– 34.Qa4 Nd5 35.Qc6?? (better is 35.Re2 Qc8 36.Qc2+–) 35...Qc6–+ 36.Re2 Re8 (36...Qa6 37.Ke1 Nf4 38.d5 Kg8 39.Re6 Qd3 40.f3 Ng2 41.Kf2 Rb2 42.Kg1 Qd1 43.Kh2 Ne3 44.Kg3 Qe1 45.Kf4 Ng2 46.Kg5 Qh4) 37.Re8 Qe8 0–1. ourang – mecys, internet, 2013.

7.Qc2 Bf5 8.e4 Be6 9.0–0 =.

7.Nc3 e4 8.Nd4=.

7.Nc3 Bf5 8.0–0 d5 (8...c5 9.a3=) 9.d4+= dc4 10.Ne5 Be5 11.de5 Qd1 (better is 11...Nbc6!?+=) 12.Rfd1+– (12.Bd1?! Bd3 13.Re1 Nbc6=; 12.Nd1?! Bd3 13.Bd3 cd3=; 12.Rad1?! Nd7+/–) 12...Nbc6 13.Bc4 (13.e4!? Be6 14.Nd5 b5+–) 13...Ne5+/– 14.Be2 Rad8 (14...f6 15.Nb5+/–) 15.e4 Be6 16.Nd5 (16.Nb5 N5c6+/–) 16...Bd5 17.ed5 f6 18.f4 Nd7 19.d6 cd6 20.Rd6 Nf5 (20...Nb6 A) 21.Rf6?! Rd2 22.Re6 A1) 22...Rf4? 23.Bc1 (23.Re7?! Rb2 24.Bf3 Rbb4+=) 23...Re2 24.Re2+–; A2) 22...Rb2 23.Re7 Rf4+=; B) 21.Rd8 Rd8 22.Bf6+/–) 21.Bc4 (21.Rd3 Nb6 22.Rd8 Rd8 23.Bf6 Rd2+/–) 21...Kg7+= 22.Re6 Nb6 23.Bb3 Rd6 (23...Rd2 24.Bc3 Rd3 25.Rc1+=) 24.Rae1 Nc8 (better is 24...Rd2!? 25.Bc1 Rdd8+/–) 25.g4+– Re6 26.Re6 (26.Be6 Nfd6+–) 26...Nh6 27.g5 Ng8 28.Re2 (better is 28.Bd5+–) 28...h5? (better is 28...h6+–) 29.Rc2 Nd6 (29...Rd8 30.Rc7 Kf8 31.gf6+– (worse is 31.Bf6 Nf6 32.gf6 Nb6 33.Rb7 Nd5+–)) 30.Rc7 Kh8 31.Rd7 Ne8 (31...Nf5 32.Rb7 a5 33.ba5+–) 32.Rb7 1–0. Kuehnemund,Lutz (2130) – Kohlmeyer,Dagobert (1885), 9th Berlin Germany, Lichtenberger Somme, 2010.

7.Nc3 h6 8.0–0 f5 (8...e4 9.Nd4 c5 10.Nc2=) 9.d4+= e4 10.Ne1 c6 11.f3 ef3 12.Bf3 Nd7 13.Nd3 g5 (13...Nb6 14.Qb3 Be6 15.d5 cd5 16.cd5=) 14.b5+/– Nb6 15.Qb3 Be6 16.d5 cd5 17.Nd5 Bb2 18.Nb2 (worse is 18.Qb2 Bd5 19.Bd5 Nbd5 20.cd5 Qb6= (20...Nd5?? 21.Qb3+–)) 18...Bd5 19.Bd5 Ned5 20.cd5 Qe7 21.Rfe1 (21.a4!?=) 21...Rac8 22.a4 (22.Rad1 Rfe8=) 22...Qe5 23.Nd3 (23.a5 Rc3 (23...Nd5 24.Rad1+/–; 23...Qd5?! 24.Qd1=) 24.Qd1 Nd5–/+) 23...Qd5 24.Qd5 Nd5 25.e4 fe4 26.Re4 Nf6 (26...Rc2!? 27.a5–+) 27.Re6 Rcd8 28.h3 Kf7 Black is in command 29.Re2 Rfe8 30.Rf2 Kg7 31.a5 Re3 32.Raf1 Rf8 33.Rd1 Ne4 34.Rc2 Rf7 35.b6 ab6 36.ab6 Nf6 37.Nb4 Rb3 38.Rc4 Rd7 39.Rdd4 Rb2 40.Rc7 Rb1 41.Kh2 Kf8?? (better is 41...Rc7 42.bc7 Rc1–/+) 42.Nd5+/– Rf7 43.Rf7 Kf7 44.Nf6 Kf6 45.Rd6 Kf5 46.Rh6 Rb3 47.g4 Ke5 48.Rg6 Rb2 49.Kg3 Rb3 50.Kg2 Rb2 51.Kf1 Kf4 52.Ke1 Kg3 (52...Rh2 53.Rf6 Kg3 54.Rf7+=) 53.Rg5+/– Kh3 54.Rg6 Kh4 55.Kd1 Rb4 The isolani on g4 becomes a target 56.Kc2 Rg4 (56...Rb5+–) 57.Rh6 Kg5 58.Rh7 Rb4 59.Rb7 Kf6 60.Kc3 Rb1 61.Kc4 (61.Kd4 Ke6 62.Rg7 Kf6+–) 61...Ke6 62.Kc5 (62.Rh7 Rc1 63.Kb5 Rb1 64.Kc6 Rd1+–) 62...Rc1 63.Kd4 Kd6 64.Rb8 (better is 64.Ke3+–) 64...Rb1= 65.Kc4 Kc6 ½–½. Bulcourf,Carlos (2260) – Szmetan,Jorge (2405), Najdorf mem op Buenos Aires, 2002.

7.d4 (--> 6.d4 0–0 7.Be2).

7.e4 Be6 8.0–0 (8.d4 ed4 9.Bd4 Bd4 10.Qd4 f5 11.Nbd2 Nec6 12.Qc3 Nd7 13.0–0 Qf6 14.Qf6 Nf6 15.ef5=; 8.Qb3 f5 9.Ng5 Bc8 10.c5 d5 11.ed5 Nd5 12.Nc3 Qg5 13.Qd5 Kh8 14.h4 Qe7 15.h5=) 8...Nd7 (8...f5 9.d3 (9.Nc3= Nbc6 10.Qb3 a5 11.Ng5 Nd4 12.Ne6 Nb3 13.ab3 Qc8 14.Nf8 ab4 15.Ra8–/+; 9.a3 fe4 10.Ng5 Bf5 11.Nc3 Nbc6 12.Nge4 Nd4 13.Bg4 a5 14.Bf5 gf5 15.Ng3+=) 9...a6 10.Ng5 Bc8 11.a3 Nbc6 12.Nd2 h6 13.Ngf3 Be6 14.Re1 Qd7 15.Qc2=) 9.d4 ed4 10.Bd4 (10.Nd4 a5 11.a3 Ne5 12.Nd2 Qd7 13.Qc2 f5 14.Rfe1 Rae8 15.Ne6+=) 10...Ne5 (10...Nc6 11.Bg7 Kg7 12.Nc3 Nde5 13.Nd5 Nf3 14.Bf3 a5 15.b5+=) 11.Be5 (11.Ne5 Be5 12.Be5 de5 13.Nc3 a5 14.b5 Qd1 15.Rfd1+=) 11...Be5 (11...de5 12.Qb3 Nc6 13.Nc3 Nd4 14.Nd4 ed4 15.Rad1+=) 12.Ne5 de5 13.Nc3 Nc6 14.a3 (14.Nd5 Qd6 15.Rb1=) 14...Nd4 (14...a5 15.b5=) 15.Bd3 (15.Qd3=) 15...Qg5 16.Qc1? (better is 16.Re1+=) 16...Nf3–+ 17.Kh1 Qh5 18.gf3 Qf3 19.Kg1 Bh3 20.Qg5 Bf1 21.Rf1 Qd3 22.Nd5 Rae8 (22...f5 23.ef5 Rf5 (23...Qa3?! 24.fg6 Qh3 25.Re1=) 24.Ne7 Kf7 25.Nf5 Qf5–/+ (worse is 25...gf5 26.Qh5 Ke6 27.Qh6 Ke7 28.Qg7 Kd6 29.Re1=)) 23.Nf6= Kg7 24.Nh5 Kg8 ½–½. Streit,J – Hofmann,Falk, corr DDR–Cup10 prel, 1986.

7.e4 f5 8.d3 A) 8...a5 9.b5 Nd7 10.0–0 Nc5 11.Nc3 c6 12.Re1 Bd7 13.Rb1 Qc7 14.Qc1 a4 15.a3=; B) 8...Nd7 9.0–0 (9.Nc3) 9...Nf6 10.Nc3 a5 11.b5 h6 12.Qc2 c6 13.Rad1 Be6 14.Rfe1 Qc7 15.a4=; C) 8...c5 9.a3 (9.bc5 dc5 10.Nbd2 Nbc6 11.0–0 Qc7 12.Rb1 Nd4 13.Re1 Bd7 14.ef5 Bf5 15.Nh4=; 9.b5 a6 10.Qb3 Rf6 11.0–0 ab5 12.Qb5 Nbc6 13.Qb3 Nd4 14.Nd4 cd4 15.Bc1=) 9...Nd7 10.0–0 Qb6 11.Bc3 Nc6 12.ef5 Rf5 13.bc5 Nc5 14.d4 ed4 15.Nd4=.

7.0–0 b6

8.a4 c5 9.b5 f5 10.d3 Be6 (10...a6 11.Qb3=) 11.Nbd2 Nd7 (11...a6 12.Ng5 Bd7 13.f4+=) 12.h3 (better is 12.Ng5!? Bf7 13.Bf3+/–) 12...h6= 13.Nh2 a6 14.f4 ab5 15.ab5 ef4 16.Bg7 (16.Rf4?? Bb2 17.Ra8 Qa8–+) 16...Kg7 17.Rf4 g5 18.Rf1 Ng6 19.d4 Nf6 20.Bf3 d5 21.dc5 bc5 22.Nb3 Qd6 (22...dc4? 23.Nd4 (23.Ba8 Qd1 24.Rfd1 cb3=; 23.Nc5?! Qd1 24.Ne6 Kf7 25.Rad1 Ke6+/–) 23...Bd5 24.Ra8 Qa8 25.Ne6 Kg8 26.Nf8 Nf8 27.Qc2+–) 23.Rf2 (better is 23.cd5 Bd7 24.Be2=) 23...Ne4?? (better is 23...Ra1 24.Na1 Ne5 25.cd5 g4–/+) 24.Be4+/– fe4 25.Rf8 Ra1?? (better is 25...Rf8 26.Ra6 Qg3 27.Qa1 Kg8+=) 26.Qa1+– (26.Na1?! Nf8 27.Nc2 Nd7=) 26...Kf8 27.Qa8 Kf7+/– 28.Qa7 Kf6 29.cd5 Qd5+/– 30.Nc5 Qd1? 31.Nf1+– Bc4 32.Qb6?? Kf7= 33.Qc7 Ne7 34.b6 Qf1 35.Kh2 g4 36.b7 gh3 37.Qg3?? hg2–+ 38.Qg2 Qb1?? 39.Qg3?? Qc2 40.Kh3?? Be6 41.Qg4 Bg4 42.Kg4 Qg2 43.Kf4 Qh2 44.Ke4–+ Qh4 45.Kd3 Qf2 46.Kd4 Qe3 0–1. horacyad2010 – m3011, internet, 2012.

8.b5 Bb7 9.d3 Nd7 10.a4 Nc5 11.Nc3 a6 12.d4 ed4 13.Nd4 Ne4 14.Ne4 Be4 15.Bf3 Bf3 16.Qf3 ab5 17.ab5 c5 18.Nc6 Nc6+/– 19.Bg7 Kg7 20.Qc6 Rc8 21.Qd5 Qf6 22.Rad1 Rfd8 23.Rd2 Qe6 24.Rfd1 Rd7 25.Qe6+– fe6 26.Rd6 Re7 27.Rb6 Rec7 28.Re6 Kf7 29.Red6 Ra8 30.Ra6 Rb8 31.g4 Kg7 32.h4 Kh6 33.Kg2 Kg7 34.Rdd6 Kh6 35.Kg3 Rbb7 36.h5 Rg7 37.Kh4 Rbc7 38.g5 1–0. hal1958 – arsenic, playchess.de, 2003.

8.Nc3 Bb7 9.d4+= ed4 10.Nd4 Nd7 11.e4 c5= 12.bc5 dc5=+ 13.Ndb5 Bc6 14.Nd6 Nc8 15.Nc8 Rc8 16.Qc2 Qh4 17.Bf3 Ne5 18.Be2 Rcd8 19.Nd5= Bd7 20.g3 Qh3 21.f4 Ng4 22.Bg4 Bg4 23.Ne7 Kh8= 24.Bg7 Kg7 25.Qb2 f6 26.e5 Rd3 27.ef6+/– Kf7 28.Nd5 Re8= 29.Rae1?? Re1–+ 30.Re1 Rd1?? 31.Qe5 Re1 32.Qe1 Be6 33.Qe5 Qf5 34.Qc7 Bd7 35.Qa7 Qb1= 36.Kg2 Qc2 37.Kf3 Qd1 38.Kf2 Qd2 39.Kf3 Qd1 40.Kf2 Qd2 41.Kf3 Qd1 ½–½. gtate (1745) – tomy (1830), net–chess.com, 2002.

8.d3 a6 9.a4 Bd7 10.b5 ab5 11.ab5 Ra1 12.Ba1 h6 13.Nbd2 Bg4 14.Ne4 Bf3 15.Bf3+/– f5 16.Nd2 Nd7 17.d4 c5? 18.Nb3 f4 19.ef4 Rf4 20.de5 Ne5 21.Qe2 Nc4 22.Bg7 Kg7=+ 23.Be4 d5 24.Rd1 Re4 25.Qf3?? Qf8 26.Qd3 Qf5 27.Qg3 Qd7 28.f3 Re6 29.Qf2 Qb5 30.Nd2 Nd2 31.Qd2 Qb4 32.Qf2 d4 (32...d4 33.Qg3 b5–+) 0–1. valpa – Ezechiel, playchess.de, 2003.

8.d3 Bb7 9.Nbd2 a6 10.a4 (10.d4 Nbc6 11.b5 ab5 12.cb5 Nb4+/–) 10...h6 (10...Nbc6 11.b5 ab5 12.ab5 Ra1 13.Qa1+=) 11.Qc2 (11.a5 Nbc6 12.ab6 cb6+=) 11...c5 (11...Nbc6 12.b5 Nb4 13.Qb3=) 12.b5 (12.bc5 bc5 13.Rfb1 Nbc6=) 12...a5 (12...f5 13.d4 cd4 14.ed4=) 13.Ne1 (13.Ne4 f5 14.Ng3 Nd7=) 13...f5 (13...d5 14.f4 Nd7 15.fe5+=) 14.Bf3 (14.f4 Nd7+=) 14...Bf3 (14...d5 15.cd5 Bd5 16.e4 fe4 17.de4+=) 15.Nef3+= (worse is 15.gf3 d5+=) 15...Nd7 16.e4 f4 (16...Qc7 17.Rae1+=) 17.Nb1 (17.Rad1 Qc7+=) 17...g5 (17...Qc7 18.Nbd2+=) 18.h3 Nf6 19.Nfd2 (19.Nbd2 g4 20.hg4 Ng4+=) 19...Nh5 (19...g4 20.hg4 Ng4 21.Nf3+=) 20.Nc3 Ra7 (20...Nf6 21.Nf3+=) 21.Qd1 Nf6 22.Nd5 (22.Qf3 Rd7+/–) 22...Nfd5+= 23.cd5 Qe8 (23...Rc7 24.Qf3+=) 24.Nc4+/– Nc8 25.Qg4 (25.Qf3 Qg6+/–) 25...Qd7 (25...f3 26.Rac1+=) 26.Qd7 (better is 26.Qf3!?+/–) 26...Rd7= 27.f3 h5 28.Kf2 Bf6 29.Rh1 Rg7 30.Bc3 Kf7 31.Rag1 Rfg8 32.g3 Rg6 33.g4 h4 34.Rb1 Bd8 (34...Re8 35.Rhc1+=) 35.Rb2 (35.Be5 de5 36.Ne5 Ke7 37.Ng6 Rg6+/–) 35...Ke8 36.Rhb1 R8g7 37.Ke2 Rb7 38.Be1 (38.Rc2 Bf6+=) 38...Rgg7 39.Bd2 Rh7 40.Bc3 Rhe7 41.Rg1 Kf7 42.Be1 (42.Rc1 Kf6+=) 42...Kg6 43.Bf2 Kf7 44.Rc1 Kf6 45.Na3 (45.Rbc2 Rbc7+=) 45...Rec7 (45...Rbc7 46.Nc4+=) 46.Rc4 (46.Rbc2 Be7+=) 46...Ne7 47.Nc2 Ng6 48.Rb1 Kf7 49.Rc1 Ke8 50.Na3 Ne7 (50...Bf6 51.Kd2+=) 51.Kd2 Nc8 (51...Ng6 52.Nc2+=) 52.R4c2 Kd7 53.Nc4 Ke7 (53...Bf6 54.Ke2+=) 54.Ke2 Ke8 55.Rg1 (55.Be1 Bf6+=) 55...Kf7 (55...Bf6 56.Re1+=) 56.Rb2 (56.Rgc1 Ke8=) 56...Rd7 (56...Re7 57.Rc2+=) 57.Be1 (57.Rc1 Bf6+=) 57...Kf6 58.Kd2 Kf7 59.Kc2 Re7 60.Kb3 Kg6 61.Bc3 Kf6 62.Rbg2 Kg6 63.Be1 (63.Rc2 Rbc7+=) 63...Rh7 64.Bc3 Kf6 (64...Rhe7 65.Rc2+=) 65.Bb2 (65.Rc2 Be7+=) 65...Rhe7 (65...Rbe7 66.Rc2+=) 66.Bc1 (66.Rc2 Rbc7+=) 66...Kg6 (66...Re8 67.Rc2+=) 67.Bd2 Kf6 68.Be1 (68.Rc1 Bc7+=) 68...Rh7 69.Ra2 Rhe7 70.Bc3 Red7 71.Be1 (71.Rc2 Be7+=) ½–½. Schirmer,Michael – Shterenberg, 1995.

8.d3 Bb7 9.Nbd2 Nd7= 10.d4 ed4 (10...c5 11.bc5 bc5 12.Rb1=) 11.ed4 (worse is 11.Nd4 c5–+) 11...Nf5 (11...d5 12.Re1=) 12.Re1 (12.Bd3 Re8+=) 12...Rb8 (12...c5 13.Bd3+=) 13.Bd3+/– White gets the initiative 13...Qf6 Can d4 get defended? (13...Nh4 14.Rb1+/–) 14.Qa4 c6 (14...Rfd8 15.Ne4 Be4 16.Be4+/–) 15.Rab1+– Ne7? (better is 15...Nh4+–) 16.d5 (16.Qa7?! Nc8 17.Qa3 d5+–) 16...Qf4 (16...Ne5 17.Ne5 de5 18.Be5 Qe5 19.Re5 Be5+–) 17.Bg7 Kg7 18.Re7 Nf6 (18...Ne5 19.Qa7 Nd3 20.Rb7+–) 19.dc6 (19.Qa7 Ba8 20.Rf7 Rf7 21.Qb8 Rf8 22.Qa7 Kh8 23.dc6 Bc6 24.Qb6 Bf3 25.Nf3 Ra8+–) 19...Bc8 (19...Ba8 20.Ra7 Ng4 21.Rd1+–) 20.Qa7 Bf5 (20...d5 21.Re5 Bg4 22.cd5+–) 21.Bf5 Qf5 (21...Ra8 22.Qb6 Ng8 23.Re4 Qf5 24.Qd4 Qf6 25.Rb2+–) 22.Nd4 Qd3 23.Ne6 Kh6 24.Rf7 Rh8 (24...Rf7 25.Qf7 Qf5+–) 25.Rf6 Qd2 26.Qa3 Rbe8 (26...Qe2 27.Qh3 Qh5 28.Qe3 Qg5 29.Qg5) 27.Qh3 1–0. market – opponent, gamecolony.com, 2007.

8.d3 Bb7 9.Nbd2 f5 10.e4 (10.d4 a5+=) 10...f4 (better is 10...a5!?=) 11.Ng5 Bc8 12.Bg4 h6 13.Be6 (13.Ne6 Be6 14.Be6 Kh7+/–) 13...Kh8+= 14.Nf7 (14.Qg4!+=) 14...Rf7= 15.Bf7 Qf8 16.Bd5 c6 17.Rc1 cd5 18.cd5 Ba6 19.Nf3 g5 20.Rc7 (20.h3 Qd8=) 20...Qd8 21.Qc2?? (better is 21.Rc3=) 21...Bd3!–+ 22.Qd3 Qc7 23.Rc1 Qd7 24.b5 (24.Nd2 b5–+) 24...a6 25.a4 ab5 26.ab5 Ra5 0–1. GuestFWPX – GuestCJSN, freechess.org, 2017.

8.d3 Bb7 9.d4 a5 10.b5 Nd7+=.

8.d3 Bb7 9.d4 Nbc6 10.b5 Nb4+–.

8.d3 f5 9.Nbd2+=.

8.d3 Bf5 9.d4 =.

8.d4 Nd7+=.

8.d4 e4 9.Nfd2 Na6 +=.

7.0–0 e4

8.Bg7 Kg7 9.Nd4 Nf5 10.Nf5 Bf5 11.Nc3 Nc6 12.a3 Qg5 13.g3 h5 14.f4 Qf6 15.Nd5 Qd8 16.b5 Ne7 17.Ne7 Qe7 18.Qc2 Rac8 19.h4 c6 20.a4 cb5 (20...f6!?+=) 21.ab5= Ra8 22.Ra4 Rfc8 23.Qa2 Be6 24.Rc1 a6 25.ba6 1–0. Fournier,Frederic (1865) – Baalhug, Active (2/5), 2005.

8.Bg7 ef3

9.Bf8 fe2

10.Qe2 Kf8 11.Nc3 a6 12.a3–/+.

10.Qe2 Kf8 11.Nc3 c6 12.a4 d5 13.d3 Be6 14.Rad1 Nd7 15.e4 (15.h3!?–/+) 15...d4–+ 16.Nb1 (16.Na2 a5–+) 16...c5 (16...a5 17.Qb2–+) 17.Qb2 Nc6 18.bc5 (18.b5 Nb4–+) 18...Nc5 19.Qa3 Qa5 20.Nd2 (20.f4 Bd7–+) 20...Qb4 21.Ra1 Qa3 (21...Qd2?! 22.Qc5 Kg7 23.Rfd1–/+) 22.Ra3 Nb4 23.Nf3 Rd8 (23...Nbd3 24.Nd4 Bc4 25.Rc3–+) 24.Ne1 (24.Rd1–+) 24...a5 25.f4 Bd7 26.Nf3 Ba4 27.Ne1 (27.Rfa1 Nbd3 28.Rd3 Nd3 29.Ra4 b6–+) 27...b6 28.f5 gf5 29.Rf5 Bd7 (29...Nc2 30.Nc2 Bc2 31.Rd5 Rd5 32.cd5–+) 30.Rf6 Be6 31.Kf2?? (31.Rf3–+) 31...Nbd3! (31...Nbd3 32.Nd3 Ne4 33.Ke1 Nf6–+) 0–1. Barreiro Pineiro,Jose (1930) – Barlov,Dragan (2435), Pontevedra ESP, 2nd Open, 2014.

10.Qe2 Kf8 11.Nc3 d5 12.cd5+= c6 (12...Qd6 13.Qc4+=) 13.dc6+/– Nbc6 14.a3 Nd5 15.Rfd1 Be6 16.Nd5 Qd5 (16...Bd5 17.d3+/–) 17.d4 f5 18.Rac1 Rd8 19.Rc5 (19.b5 Na5+/–) 19...Qd6 20.f3 (20.Rdc1 Kg8+/–) 20...Ne7 (20...f4!? 21.d5 fe3 22.Qe3 Ne7+/–) 21.e4+/– White prepares d5 21...fe4 (21...Kg8 22.d5+/–) 22.fe4 Kg8 23.d5 Qd7 (23...Bf7+–) 24.Rdc1 Bg4 25.Qc4 Nc8 (25...b6 26.d6 Be6 27.de7 Bc4 28.ed8R Qd8 29.R5c4+–) 26.Rc7 Qd6 (26...Qe8 A) 27.Rb7 Nd6 28.Qc6 Nb7 29.Qb7 Qe4 30.Qa7 A1) worse is 30...Rd5 31.Qa8 Kg7 32.Rc7 Kf6 33.Qh8 Kg5 34.h4 Kf4 35.Qf6 (35.Rh7?? Qe3 36.Kh2 Qg3 37.Kg1 Rd1; 35.Qh7?? Qe3 36.Kh2 Qg3 37.Kg1 Rd1) 35...Qf5 36.Rc4 Ke3 37.Qc3 Rd3 38.Qc1 Rd2 39.Qc3 Ke2 40.Qg3+=; A2) 30...Qd5–/+; B) 27.e5 Bd7 28.e6+–) 27.e5 Qe5 28.Qg4 (28.Qg4 Nd6 29.Qe6 Qe6 30.de6+–) 1–0. Valente,Hector Manuel (1805) – Curatola,Clemente (2115), Club Argentino de Ajedrez – Torneo Abie, 2013.

10.Qe2 Kf8 11.Nc3 Kg8!?=.

10.Qe2 Qf8

11.Nc3 Be6 (11...a6 12.d4=) 12.d4 White plans c5 12...d5 (12...Qg7 13.Rfc1=) 13.c5 (13.Qf3 c6=) 13...Nd7 14.a4 (14.Qf3 b6=) 14...Nf6 (14...a5 15.Rfb1=) 15.b5 (15.Qf3 Bf5=) 15...Ne4 (15...Qh6 16.a5=) 16.Rfc1 Nc3 (16...Qh6 17.a5=) 17.Rc3 Bd7 (17...a6 18.b6=) 18.e4 (18.a5 Qe8 19.Rb3 Nf5+=) 18...de4= 19.Qe4 c6 20.Rb3 (20.Qf3 Nd5 21.Rc2 Qg7+=) 20...Be6 (20...Re8 21.Qf3=) 21.Rb2= Bd5 (21...Rd8 22.Re1=) 22.Qd3 (22.Qf4 Nf5=) 22...Nf5 (22...Re8 23.b6 a6 24.Re1+=) 23.a5 (23.Re1 Qg7 24.Rb4 Rd8+=) 23...cb5+= 24.Rb5 a6 The passed pawn on d4 will become decisive later 25.Rb6 Qd8 26.Qd2 Bc6 d4 gets attention (26...Qh4 27.Rb4+=) 27.Rd1 Qd5 The mate threat is Qxg2 28.f3 Re8 29.Rb4 Rd8 Increases the pressure on d4 30.Qe2 (30.Qg5 h6 31.Qd2 Re8+=) 30...Ng7 31.Rb2 (31.Qc4!?+=) 31...Ne6–/+ 32.Rbd2 Nf4 (better is 32...Ba4!? 33.Ra1 Nd4–+) 33.Qe3 (33.Qe5 g5=) 33...Qf5 (33...g5 34.Qf2+=) 34.Qb3 (34.Qe5 Qe5 35.de5 Re8+=) 34...Nd5 (34...Qg5 35.Qc3–/+) 35.Re1 Qf4 36.Qb2 Qc7 37.Qa3 Re8 38.Rde2 (38.Re8 Be8 39.Re2 Bb5=) 38...Re2 39.Re2 Qf4 (39...Nf4 40.Re1+=) 40.Qb2= Qg5 41.Re5 Qd8 42.Qd2 Kg7 (42...Nc7 43.Qe3–/+) 43.Re4 (43.Re1!?=) 43...Nc7–/+ 44.Re1 (44.Re5 Nb5–/+) 44...Ne6 45.Rd1 Qd5 (45...Ba4!? 46.Re1 Nd4–/+ (worse is 46...Qd4 47.Qd4 Nd4 48.Re4+/–)) 46.Qc3 Kg8 47.Rd2 (47.Kh1 g5=) 47...Bb5 (47...Qg5 48.Kh1+=) 48.Rd1 (better is 48.Qe3=) 48...Qc4 (48...Nf4 49.Qd2 Nd3 50.Qc3+=) 49.Qc4= Bc4 50.d5 Nc7 51.d6 Ne6 52.d7 Nd8 53.Kf2 (better is 53.Rb1!? Kf8 54.Rb7+=) 53...Kf8+= 54.Ke3 (54.Rd4 Be6–/+) 54...Ke7–/+ 55.Kf4 (55.g4 Be6–/+) 55...f6 (55...Bb5 56.Kg5–/+) 56.h4 (56.Ke4 Bb5–/+) 56...Bb5 (56...Bb5 57.Ke3 Bd7–+) 0–1. Franke,Roland – Pustelnik,Jens, Bahn–chM Borkum, 1996.

11.d4 a6=.

11.d4 Nbc6

12.a3 a6 13.Re1 (13.Rd1 Qh6 14.Nc3 Qh4 15.h3=; 13.Nc3 Qh6 14.Rfb1 Qh4 15.h3=; 13.Nd2 Qh6 14.Qd3 Be6 15.e4=) 13...Qh6 14.Nc3 Qg5 15.Rad1=.

12.a3 Bd7 13.Nc3 (13.Nd2 a6 (13...Qh6= 14.b5 Na5 15.Rfb1=) 14.h3 Re8 15.Qf3=; 13.Rd1 a6 14.Nd2 Re8 15.Qf3=; 13.Qf3 Qh6 14.Nd2 Qh4 15.b5=; 13.Re1 a6 14.Nc3 Qh6 15.Qd3=) 13...Qg7 (13...a6 14.Qf3 (14.Rac1= Qh6 15.Qf3=) 14...Qh6 15.Rfc1+=) 14.Rac1 (14.Qf3 Re8 15.Rac1=) 14...Re8 (14...a6 15.Qf3+=) 15.Nb5 (15.Qf3=) 15...Rc8 16.d5 Ne5 (16...Nd8 17.Nc3=) 17.Na7+= Ra8 18.Nb5 Bg4 (18...Bb5 19.cb5 Nd5 20.Rfd1+/–) 19.f3+/– Bd7 20.f4 (20.e4 Bb5 21.cb5 Rc8+/–) 20...Ng4+= 21.h3 Bb5 (21...Nf6 22.e4 Ne8 23.c5+=) 22.cb5 (22.Qg4?! Be8=; worse is 22.hg4 Bd7=) 22...Nf6 23.e4 Ne8 24.Rf3 (24.Qd3 f5+=) 24...Qd4 (24...f5 25.Re3 Qf7 26.Rc4+=) 25.Kh1 Kf8 (25...Qg7 26.b6 cb6 27.Re3+=) 26.Rd1 Qb6 27.e5 Nf5 28.Qd3 Nh4 29.Re3 Kg8 (29...Nf5 30.Re2+/–) 30.Re2 Qa7 31.Ra2 (31.Rc1 Nf5 32.g4 Nfg7+/–) 31...Ng7 (31...Qa4 32.b6+/–) 32.g3 (32.Rc1 Nh5 33.Rc4 Qb6+/–) 32...Nhf5 33.g4 Ne7 34.a4 Rd8 (34...Qb8 35.a5+/–) 35.Qb3 (35.Qf3 Qb6+/–) 35...Qb6 36.Re2 de5 37.fe5 (worse is 37.Re5 Qd6=) 37...g5 (37...Rd7 38.Red2+/–) 38.Qc4 (38.Kh2 Ne8+/–) 38...c6 (38...Qh6!? 39.Kh2 Ne6 40.de6 Rd1 41.ef7 Kf8 42.Qc7 Kf7+/–) 39.bc6+– bc6 40.d6 Ne6 (40...Nd5 41.a5 Qb4 42.Qb4 (42.Qc6? Nc3 43.Rde1 Ne2 44.Re2 Qa5–+) 42...Nb4 43.Ra1+/–) 41.a5+– Qa7 (41...Qb7 42.a6 Qa8 43.Ra2+–) 42.Kh2 (42.Ree1 Nd5 43.b5 Qf2+/–) 42...Qa8 (42...Ng6 43.Qe4+–) 43.a6 (43.Rc2!? Qb8 44.Qe4+–) 43...Ng6 44.Rdd2 (44.Rde1 Rb8 45.Ra2 Rb5+/–) 44...Nef4 (44...Rb8 45.d7 Ngf4 46.Re3+/–) 45.Re4 Ne6 (45...Re8 46.d7 Rd8 47.Rd6+=) 46.Rc2 c5 47.b5 Rb8 (47...Nd4 48.Rf2 Nf4 49.Re3+/–) 48.Rb2 1–0. Trokenheim,Marek (1800) – Hrubaru,Mircea (1840), FICGS, 2008.

12.a3 Qd8 13.Nc3 (13.Rd1 d5 14.Nc3 Bf5 15.e4=; 13.Re1 d5 14.c5 Bf5 15.Nc3=; 13.Rc1 a6 14.Nc3 d5 15.cd5=; 13.Nd2 a6 14.Qf3 Nf5 15.Rfe1=) 13...a6 14.d5 Ne5 15.f4=.

12.a3 Bf5 13.Nc3 (13.Rd1 Qg7 14.Nc3 a6 15.Qf3=; 13.e4 Bd7 14.Rd1 Qg7 15.Qb2=; 13.Nd2 a6 14.Rac1 Qh6 15.e4=; 13.b5 Na5 14.e4 Be6 15.Nd2=) 13...a6 14.Rad1 Qg7 15.Qf3=.

12.a3 Nf5 13.Rd1 (13.Nc3 Qd8 14.Rad1 a6 15.Qc2=; 13.b5 Na5 14.Qd3 a6 15.e4=; 13.Qd3 Be6 14.Qc3 d5 15.cd5=; 13.Re1 a5 14.b5 Nd8 15.Nc3=) 13...Qe8 14.Nc3 a6 15.Nd5=.

12.a3 Qg7 13.Re1 (13.Nd2 a6 14.b5 ab5 15.cb5=; 13.Qf3 Be6 14.Nd2 a6 15.a4=; 13.Nc3 a6 14.Rac1 Qf6 15.Rfe1=; 13.Rc1 a6 14.Qf3 Be6 15.Nd2=) 13...a6 14.Nc3 Be6 15.Rac1+=.

12.a3 Qh6 13.Nd2 (13.Nc3 a6 14.Rfb1 Qh4 15.h3=; 13.Rd1 Qh4 14.e4 f5 15.Nc3=; 13.b5 Na5 14.Qd3 a6 15.Nc3=; 13.Re1 Qh4 14.Nc3 a6 15.Qd3=) 13...a6 14.Rfe1 Qh4 15.Qd3=.

7.0–0 f5

8.b5 a6 9.Qb3=.

8.b5 b6 9.d4+= Nd7 (9...e4 10.Nfd2+=) 10.Nc3 (10.Ng5 Nb8+/–) 10...Bb7 (10...a6 11.Qb3+=) 11.Qb3 (11.Ng5 Re8+/–) 11...Kh8 (11...c5 12.bc6 Bc6 13.Rad1+=) 12.Ng5 Rf6 13.Nd5 (13.de5 de5 (13...Ne5? 14.f4+–) 14.c5 Nc5 15.Nf7 Rf7 16.Qf7 Nc8+=) 13...Nd5 14.cd5 h6 (14...Qg8 15.Bc4+/–) 15.Ne6+– Qe7 (15...Qg8 16.Rfc1 (16.Ng7?! Bd5 17.Qc3 Rc8+=) 16...Bd5 17.Qd5 Re6 18.Bc4+–) 16.Rac1 (worse is 16.Nc7 Rc8 17.Rac1 ed4 18.Bd4 Nc5 19.Bf6 Bf6 20.Rc5 bc5+/–) 16...Re6 (better is 16...Rc8 17.de5 de5+–) 17.de6 Nf6 (17...Nf8 18.d5+–) 18.Rfd1 (18.de5 Ne4 19.ed6 cd6+–) 18...Bd5 (18...ed4 19.Bd4 a5 20.Qc4+–) 19.Bc4 Qe6 (19...Bc4 20.Qc4 ed4 21.Bd4 Rc8+–) 20.Bd5 Qd5 21.Qd5 Nd5 22.de5 Nb4 (22...a6 23.Rd5 ab5 24.Rc7 Be5 25.Be5 de5 26.Re5+–) 23.a3 (23.ed6 cd6 24.Bg7 Kg7 25.Rc7 Kg8+–) 23...Na2 24.Rc7 (24.Rc7 Be5 25.Rd2+–) 1–0. Janek – Faur, internet free game, 2017.

8.b5 h6 9.d4 e4 10.Nfd2 Nd7 11.Qb3 Kh8 12.Nc3 Nf6 13.d5 g5 14.Qc2 Bd7 15.Nb3 Qe8 16.Nd4 Qg6 17.a4 h5 18.a5 Rg8 (18...a6 19.ba6 Ra6 20.c5 dc5 21.Ne6 (worse is 21.Ba6 cd4 22.Ba3 Nfg8 23.Bb7 dc3+=) 21...Re6 22.de6 Be6 23.Na4+/–) 19.Qa4 b6 (19...a6 20.Qb4+/–) 20.Rad1 (20.ab6!? cb6 21.Nc6+–) 20...f4 21.Ne6 Be6 22.de6 Nf5 (22...Qf5!? 23.ef4 gf4+=) 23.Nd5+/– Nd5 24.Bg7 Rg7 25.cd5 (25.Rd5?! Rf8=) 25...fe3 26.Qe4 ef2? (better is 26...Ng3 27.Qe3 Nf1 28.Rf1 Re7+/–) 27.Rf2+– Kh7?? (27...Ne7 28.Qg6 Ng6 29.Bh5 Nf4+–) 28.Qf5 1–0. druhynejhorsi – elephantman (1630), internet, 2012.

8.Qc2 e4 9.Ne1 Bb2 10.Qb2 Nec6 11.b5 Ne5 12.d4 ed3 13.Nd3 Qf6 14.Ne5 Qe5 15.Qc2 Qa1 16.Nc3 Qf1 17.Bf1 Be6 18.Nd5 Nd7 19.Nc7 Nc5 20.Na8 Ra8 21.g3 Rd8 22.Bg2 Rc8 23.h4 Ne4 24.Be4 Rc4 25.Qd2 fe4 26.Qd6 Rc1 27.Kg2 Bg4 28.Qd5 Kg7 29.Qe4 h5 30.Qb7 Kh6 31.a4 Be6 32.a5 Rd1 33.e4 Bc4 34.b6 Bf1 35.Kh2 ab6 36.Qb6 Ra1 37.Qe3 Kh7 38.Qc3 Ra2 39.Kg1 Bh3 40.e5 Be6 41.f4 Bd5 42.Qc7 Kh6 43.Qc5 Ra1 44.Kf2 Ra2 45.Ke3 Bg8 46.Qf8 Kh7 47.Qe7 Kh6 48.Qg5 Kh7 49.Qf6 Ra5 50.e6 Ra6 51.f5 gf5 52.Qf5 Kg7 53.Qg5 Kf8 54.Qf6 Ke8 55.Qg7 Re6 56.Kf4 Bf7 0–1. ejdrzej (1760) – najlepszy19 (1750), internet, 2013.

8.d3 h6 9.b5 g5 10.h3 Ng6 11.Nc3 g4 12.hg4 fg4 13.Nh2 g3 14.Nf3 gf2 15.Rf2 Nd7 16.Qc2 Nf6 17.Raf1?? (better is 17.d4 ed4 18.Nd4=) 17...Ng4–+ 18.Nh2? (better is 18.Nd5–+) 18...Ne3 (worse is 18...Nf2 19.Rf2 Rf2 20.Kf2 Qh4 21.Kg1–+; worse is 18...Rf2 19.Rf2 Nf2 20.Kf2–+) 19.Rf8 Nf8 20.Qc1 Nf1 21.Qf1 Be6 22.Bf3 e4! 23.Be4 (23.Ne4 Bb2 Pinning (23...Bb2 Deflection; 23...Bb2 Clearance); 23.de4 Ng6 Combination; 23.Be4 c6 Combination) 23...Bd4 (23...c6!?–+) 24.Kh1–/+ Qh4 25.Nd1 Bb2 26.Nb2 Re8 27.Bb7? (better is 27.a4!?–+) Bc4 (27...Bc4 28.Nc4 Re1–+) 0–1. Van Esbroeck,Dirk – Bianshi,Julian, 34. LSS No Engine Cup Preliminary, 2011.

8.d4 e4 9.Nfd2 c6 (9...d5 10.Nc3 Be6 11.Qb3+=) 10.Nc3 d5 (10...Be6 11.Qc2+=) 11.Qb3 Be6 12.Rac1 (12.b5 cb5 13.Qb5 b6+=) 12...a6 (12...Qd7 13.b5+=) 13.a4 Qb6 (13...b6 14.f3+=) 14.a5 (better is 14.Ba3+=) 14...Qc7 (better is 14...Qd8!?+=) 15.Nd5!+– cd5 (15...Bd5 16.cd5) 16.cd5 Discovered attack. 16...Qd6 (16...Nbc6 17.de6 Rad8 18.Ba3+–) 17.de6 Nbc6 18.f3 (18.Ba3 Qd8+–) 18...Qb4 (18...ef3 19.Bf3 Rae8 20.Rc5+–) 19.Qb4 Nb4 20.Ba3 Nec6 (20...Nbc6 21.Rb1 Rfe8 22.fe4 Na5 23.Bd3+–) 21.Bc4 Rfe8 (21...ef3 22.e7 Rf7 23.Rf3+–) 22.Bb4 (22.fe4 Bh6 23.Kf2 f4 24.e7 Kg7+–) 22...Nb4 23.fe4 fe4 (23...Bh6 24.Rc3 Rac8 25.Kh1+–) 24.Ne4 Rac8 (24...Nc6 25.Nd6 Bh6+–) 25.Nd6 Rc4 (25...Bh6 26.e7 Rc4 27.Ne8 Be3 28.Kh1 Rc1 29.Nf6 Kg7 30.Rc1 Bc1+–) 26.Rc4 Re6 (26...Rb8 27.Rb4 Bf8 28.Rb7 Rb7 29.Nb7 Kg7+–) 27.Rc8 1–0. b4_player – opponent, gamecolony.com, 2007.

8.d4 f4 9.de5 fe3 10.ed6?? (better is 10.fe3 Nbc6 11.c5+=) 10...Bb2–+ 11.de7 Qe7 12.fe3 (12.Na3 ef2 13.Rf2 Ba3–+) 12...Ba1 (12...Qe3 13.Kh1 Ba1 14.Re1–+) 13.Nbd2 (13.Qb3 c5 14.bc5 Na6–+) 13...Bg7 (13...Bc3 14.Rf2–+) 14.e4 (14.Qb3 c5 15.a3 Bf5–+) 14...Nc6 (14...Qb4!? 15.Qb3 Qc5 16.Kh1–+) 15.a3 Ne5 16.Ne5 Be5 17.Nf3 Bg7 18.c5 (18.Qd5 Kh8–+) 18...Be6 (better is 18...Qe4!? 19.Kh1 Bf5 20.Nd2–+) 19.Qc2 Rae8 20.e5 Kh8 21.Re1 c6 22.Bc4 (22.a4 Bg4 23.Qc4 Bf3 24.Bf3 Be5–+) 22...Bc4 (better is 22...Bg4 23.Nd2–+) 23.Qc4 0–1. emeryt85 – yebo, internet, 2013.

6.Be2 a5

7.b5 0–0 8.d4 Re8 9.0–0 Nd7 10.Nbd2 Nf5 11.de5 Ne5 12.Ne5 de5 13.Qc2 Qe7 14.Rfd1+=.

7.b5 0–0 8.d4 Nf5 9.0–0 ed4 10.ed4 Qf6 11.Nbd2 Re8 12.Bd3 a4+=.

7.b5 Be6 8.d4 0–0 9.0–0 Nd7 10.Nbd2 ed4 11.Bd4 Ne5 12.Qc2 Nf5 13.Bc3 a4 14.Ne5+=.

7.b5 Bf5 8.0–0 0–0 9.Nc3 Nd7 10.d4 ed4 11.Nd4 Be6 12.Rc1 Ne5+=.

7.b5 Bg4 8.0–0 0–0 9.d4 Nd7 10.de5 Qe8 11.Qc2 de5 12.Nc3 f5 13.Ng5 Be2 14.Ne2+=.

7.b5 Bg4 8.d4 0–0 9.Nbd2 Nd7 10.h3 Bf5 11.0–0 ed4 12.Bd4 Re8 13.Bg7 Kg7 14.a3=.

5.Nf3 f5

6.a3 Nf6 7.d4 e4 8.Nfd2 0–0! 9.Be2 c6 10.Nc3 d5 11.cd5 cd5 12.0–0! Be6 13.g3 h6 14.Rc1 Kh7 15.Na4 Nbd7 16.Nc5 Nc5 17.dc5 Qd7 18.Nb3 Ng8 19.Bg7 Qg7 20.Nd4 Bd7 21.Qb3 Ne7 22.Rfd1 g5 23.Nb5 f4 24.ef4 gf4 25.Nc7 fg3 26.hg3 Qf6 27.Rf1 Bh3 28.Nd5 Nd5 29.Qd5 Rae8 30.f4 Bf1 31.Rf1 Rg8 32.Kf2 e3 33.Kg2 Qg7 34.Bd3 Kh8 35.Rf3 e2 36.Be2 Re2 37.Kf1 Rge8 38.Qd3 Qa1 0–1. vihavald – prayingmantis, internet, 2013.

6.Qb3 Be6 7.Nc3 Nf6 8.d4 e4 9.Ng5 Bd7 10.h4 h6 11.Nh3 Be6 12.Nf4 Bf7 13.Be2 b6 14.0–0–0 0–0 15.f3 Re8 16.g4 ef3 17.Bf3 c6 18.gf5 gf5 19.Rde1 d5 20.Rhg1 dc4 21.Qc2 Qd7 22.d5 Kh8 23.dc6 Nc6 24.Ncd5 Qd6 25.Rg7 Nb4 26.Nb4 Qb4 27.Reg1 c3 28.Qc3 Rac8 29.Rf7 Rc3 30.Bc3 Qc3 31.Kb1 Ng4 32.Bg4 Re3 33.Bf5 Re1 34.Re1 Qe1 35.Kb2 Qf2 36.Bc2 Qd4 37.Kb1 Qg1 38.Kb2 Qd4 39.Kb1 Qb4 40.Kc1 Qa3 41.Kd2 Qa5 42.Kc1 Qe1 43.Kb2 Qe5 44.Kc1 Qf4 0–1. ferminkatcho (1740) – gromek97 (1815), internet, 2013.

6.Qb3 Nf6 7.h4 Be6 8.d4 e4 9.Ng5 Bg8 10.Nc3 h6 11.Nh3 Bf7 12.Be2 0–0 13.Nf4 c6 14.0–0–0 b5 15.f3 (15.d5 bc4 16.Bc4 Ng4 17.dc6 Nf2 18.Ng6 Bc4 19.Qc4 Rf7+/–) 15...bc4 (15...a5!?–/+) 16.Bc4+= d5 17.Be2 a5 18.fe4 (18.Ba3 ab4 19.Bb4 Re8+=) 18...de4 19.Bc4 ab4 20.Bf7 Rf7 21.Na4? (better is 21.Qb4 Ng4 22.h5–/+) 21...Nd5–+ 22.Ng6 Nd7 23.h5? (23.Nc5–+) 23...N7b6 (better is 23...Qa5 24.Nc5 Nc5 25.dc5 Qc5 26.Kb1 Bb2 27.Rd5 cd5 28.Qb2 Kh7–+) 24.Nc5 (24.Nb6!? Qb6 25.Rhf1–/+) 24...Rfa7–+ 25.g4 Ra3! 26.Ba3 Ra3 27.gf5 (27.Qb1 Qg5 28.Qb2 Qe3 29.Qd2 Bd4–+) 27...Rb3 28.ab3 Qg5 29.Rde1 (29.Rh3 Qg4 30.Rdh1 Ne3 31.Re3 Qg5–+) 29...Ne3 (29...Bd4!? 30.Ne4 Be3 31.Kc2 Qg2 32.Kd3–+) 30.Rhg1 Ng4 31.Kb1 Qh5 (better is 31...Nd5 32.Ne7 Ne7 33.Re4 Qf5 34.Kc1–+) 32.Ne6? (32.Ne7 Kh8 33.Re4–+) 32...Qf5 (32...Qh3 33.Ka2 Qh2 34.Kb1 Na4 35.ba4 b3 36.Ne7 Kf7 37.Nd8 Ke8 38.Re2 Qe2 39.Rg2 Qg2 40.Ndc6 Qc2 41.Ka1 Qc1) 33.Ng7 (better is 33.Ne7 Kf7 34.Nf5+–) 33...Kg7 (better is 33...Qg6 34.Nh5 e3 35.Ka1 Qh5 36.Re3–+) 34.Ne5 h5 0–1. ferminkatcho (1655) – sfbirkenfeld (1715), internet, 2013.

6.Qc2 a5 7.b5 Nf6 8.d4 e4 9.Nfd2 Ng4 10.h3 Nf6 +=.

6.Qc2 Nf6 7.Be2 (7.c5 0–0 8.cd6 cd6 9.Qb3 Kh8 10.d4 e4=; 7.d4 e4 8.Nfd2 c5 9.bc5 dc5 10.d5 0–0=) 7...a5 (7...e4 8.Nd4 c5 9.bc5 dc5 10.Nb3 Na6=) 8.b5 (8.Qa4 Nbd7 9.d4 0–0 10.c5 e4=) 8...b6 (8...e4 9.Nd4= 0–0 10.0–0 Qe7=) 9.0–0 (9.d4 e4 10.Nfd2 0–0+=) 9...Bb7 (9...c5 10.bc6 Nc6+=) 10.d4 e4 11.Ng5 Bc8 12.a4 h6 13.Nh3 g5 14.Kh1 0–0 15.Nc3 Bb7 16.Rac1 Nbd7 17.Qb3 Kh7 18.Qc2 (18.Kg1 Qe7+=) 18...Qe7 (18...Kg8 19.Rfd1+=) 19.Rfe1 Kh8 20.Nb1 Ng4 21.Nd2 Rae8 22.Nf1 h5 23.Ng3 h4 24.Nf5 Nf2 25.Nf2 Rf5 26.Bg4 Rff8 27.Rf1 Nf6 28.Bf5 Qd8 (28...Nd5!? 29.Bg6 Rf6 30.Be8 Ne3+/–) 29.Qe2 Bc8 30.Bc8 (30.Bg6!?+–) 30...Qc8+/– 31.d5 Qd7 32.Nh3 Nh7 33.Ba1 Ba1 34.Ra1 Qg7 35.Rac1 Qe5 36.Qh5 Kg7 37.Qg4 Qe7 (37...Kh6 38.Qe2+=) 38.Ng1 (38.Nf4 Kg8+–) 38...Kg6 (38...Qe5 39.Qh3+=) 39.Qe2 (39.Ne2 Nf6 40.Qf5 Kh6+–) 39...Nf6 40.Nh3 Nh7 41.Qg4 Kh6 (41...Kg7 42.Nf4 Kg8 43.Ne6+–) 42.Qe2 Qe5 (42...Kg6 43.Kg1+/–) 43.Nf2 Kg6 44.Ng4 Qe7 45.Qb2 Qg7 (45...Nf6 46.Nf6 Rf6 47.Qc2+=) 46.Qc2 Nf6 47.Nf2 (47.Nf6!? Rf6 48.Kg1+/–) 47...Qe7 48.Qe2 ½–½. Schmidbauer,Jens – Lichtmannecker,Hans Juergen, North Bayern–ch, 2003.

6.Nc3 Nf6 7.Qb3 Be6 (7...e4 8.Nd4=) 8.d4 e4 9.d5 Bg8 (9...Bd5 10.cd5 ef3 11.gf3=) 10.Nd4+= Nbd7 11.Be2 Ne5 12.h3 h5 13.f3 (13.0–0 c6+=) 13...ef3 14.gf3 Nh7 (14...a5 15.ba5 Qc8 16.f4+/–) 15.f4 Qh4 (better is 15...Nd7!?+=) 16.Kd2+/– Bh6 (better is 16...0–0–0!?+/–) 17.Ncb5+– Qe7 18.fe5 de5 19.Nf3 Bg7 20.Kc2 (20.Qa4!? c6 21.Na7 Nf6+–) 20...a6 21.Nc3 g5 (21...0–0–0 22.Rag1 e4 23.Nd2+–) 22.Raf1 Bf7 23.Rhg1 (better is 23.e4 Bg6 24.Bd3 fe4 25.Ne4+–) 23...Bg6? (23...0–0–0+–) 24.Nh4! Qf7 (24...gh4 A pinning theme 25.Rg6) 25.Nf5! (worse is 25.Ng6 Qg6 26.Qa4 Kd8+–) 25...Nf6 (25...Qf5 26.Rf5) 26.Bd3 e4 (26...g4+–) 27.Ng7 (27.Ng7 Qg7 28.Ne4 Be4 29.Be4+–) 1–0. Teichmann,Erik (2290) – Hold,Andre, Hamburg HSK–Elo, 1991.

6.c5 Qe7 7.cd6 cd6 8.Nc3 Nf6 9.Bc4 Nbd7 10.Rc1 Nb6 11.Bb3 a6 12.a4 Be6 13.Ng5 Bb3 14.Qb3 d5 15.a5 Nbd7 16.Ba3 Rc8 17.0–0 0–0?? (better is 17...Rc7+/–) 18.Nd5+– Nd5 19.Qd5 Kh8 20.Rc8 Rc8 21.Nf7 (21.Nf7 Kg8 22.Nd6 Kh8 23.Nc8+–) 1–0. Steffens,Olaf (2325) – Homuth,Manfred (2270), Oberliga Nord N, 1996. (=1.e3 d6 2.b4 e5 3.c4 g6 4.Bb2 Bg7 5.Nf3 f5)

6.d3 Qe7 7.Nfd2 (7.Be2 Nf6 8.0–0 e4 9.Nd4 0–0 10.Nd2 c5=) 7...Nf6 (7...f4 8.e4 Nc6 9.b5 Nd4 10.Bd4 ed4=) 8.b5 (8.Be2 Nbd7 9.0–0 0–0 10.Nc3 c6=) 8...0–0 (8...a6 9.ba6 Na6 10.Be2 0–0=) 9.Be2 Be6 (9...a6 10.0–0 ab5=) 10.0–0 (10.a4 a6=) 10...Nbd7 (10...a6=) 11.d4 Nb6 (11...a6 12.Nc3=) 12.d5 (12.de5 Ng4 13.Bg4 fg4 14.ed6 cd6 15.Bg7 Kg7+=) 12...Nfd5 (better is 12...Bf7!?=) 13.cd5+/– Nd5 14.Bc4 Nb6 15.Be6 Qe6 16.a4 Qd7 (16...a6 17.a5 Nd7 18.Nc3+/–) 17.Qb3 Rf7 (17...Qf7!?+/–) 18.a5+– Nc8 19.Rc1 b6 (19...d5 20.Nf3 Qd6 21.Ba3+–) 20.a6 Ne7 21.Ra4 d5 (21...h6 22.Nf3+–) 22.Nf3 e4 23.Ne5 (better is 23.Ng5!? Bb2 24.Qb2 Rff8 25.Rc7 Qd6+–) 23...Be5 24.Be5 c5 25.bc6! Nc6 26.Bb2 Na5? (better is 26...b5 27.Qc3 d4 28.ed4 Qd5+–) 27.Qc3 Qa4 (27...Rg7 28.Rd4 Re7+–) 28.Qh8 1–0. Suess,Stefan – Zschunke,Werner, corr, 1986.

6.d3 Nf6 7.Be2 e4 8.Nd4 c5 9.Nc2 cb4 10.Nb4 Nc6 =.

6.d4 a5 7.Qa4 (7.b5 e4 8.Nfd2 Nf6 9.Be2 0–0 10.0–0 Be6=; 7.de5 ab4 8.a3 ba3 9.Ra3 Ra3 10.Na3 Nd7=) 7...Qd7 8.b5 e4 9.Nfd2 Nf6 10.Be2 Qe7+=.

6.d4 Nc6 =.

6.d4 ed4 7.Nd4 (7.ed4; 7.Be2) 7...Ne7 8.c5 0–0 9.cd6 cd6 10.Qd2 Nbc6+=.

6.d4 Nd7 7.h4 Ne7 8.Qb3 a5 9.b5 e4 10.Ng5 Nf6 11.Nc3 h6 12.Nh3 Be6 13.Nf4 Bf7 14.Be2 Qd7 15.0–0–0 0–0–0 16.Kb1 b6 17.Rc1 g5 18.Nh3 gh4 19.Nf4 Ng4 20.Bg4 fg4 21.Rh4 Ng6 22.g3 Nh4 23.gh4 Qf5 24.Ncd5 Bd5 25.cd5 Rd7 26.h5 Bf6 27.Qc4 Kb8 28.Rc2 Rc8 29.Qc6 Re7 30.Bc1 Qd7 31.Bd2 Bg5 32.Ne6 Qc6 33.bc6 Rce8 34.Be1 Re6 35.de6 Re6 36.d5 Rf6 37.Rd2 Rf5 38.Rd4 Bf6 39.Re4 Rh5 40.Re8 1–0. ferminkatcho (1695) – leedar (1735), internet, 2014.

6.d4 g5 7.Be2 g4 8.Nfd2 ed4 9.Nb3 Nf6 10.Nd4 Ne4=.

6.d4 g5 7.Be2 g4 8.Nfd2 ed4 9.Nb3 Qg5 10.Bd4 Nc6+=.

6.Be2 a5 7.Qa4 (7.b5 Nf6 8.d4 e4 9.Nfd2 0–0 10.Nc3 Be6=) 7...Bd7 8.b5 Be6 9.0–0 Nd7 10.d4 e4+=.

6.Be2 Na6 7.a3 (7.b5 Nc5 8.d4 ed4 9.Bd4 Nf6 10.0–0 0–0=) 7...Nf6 8.d4 e4 9.Nfd2 0–0 10.0–0 c5+=.

6.Be2 Nc6 7.b5 Nce7 8.d4 +=.

6.Be2 Nd7 7.0–0+= a5 A) 8.a3 ab4 (8...Ngf6 9.d4 e4 10.Nfd2 ab4 11.ab4 Ra1 12.Ba1 0–0 13.Qc2 Nb6+=; 8...Ne7 9.d4 0–0 10.Nc3 e4 11.Nd2 Nf6 12.Qa4 Be6 13.b5 Nc8+=; 8...Nh6 9.d4 0–0 10.Nc3 Nf7 11.Qc2 e4 12.Nd2 c6 13.Nb3 b6+=) 9.ab4 Ra1 10.Ba1 Ne7 11.d4 e4 12.Nfd2 0–0 13.f3 Nf6+=; B) 8.ba5 Ne7 (8...Ra5 9.d4 e4 10.Nfd2 Ngf6 11.Qb3 Nb6 12.Bc3 Ra7 13.a4 0–0+=; 8...g5 9.d4 g4 10.Nfd2 Ra5 11.c5 Qf6 12.Nc4 Ra6 13.Nca3 Ra8+/–; 8...Ngf6 9.d4 Qe7 10.Nc3 0–0 11.Qb3 c5 12.de5 Ne5 13.Ne5 de5+=) 9.d4 0–0 10.c5 e4 11.cd6 cd6 12.Ng5 Nf6 13.Bc3 Nc6=; C) 8.b5 Ngf6 (8...Nh6 9.d4 0–0 10.Nc3 Nf7 11.Qc2 e4 12.Nd2 Nb6 13.c5 dc5+=; 8...Ne7 9.d4 e4 10.Nfd2 0–0 11.Nc3 Nb6 12.Na4 Nd7 13.f3 Nf6+=; 8...Qe7 9.d4 Ngf6 10.Nc3 0–0 11.Qc2 e4 12.Nd2 Nb6 13.Na4 Na4+=) 9.d4 Qe7 10.Nc3 0–0 11.Qc2 e4 12.Nd2 Nb6 13.Na4 Na4+=.

6.Be2 Nd7 7.0–0+= b6 8.Qb3 (8.d4 e4 (8...Bb7 9.Nc3 a5 10.b5 Ngf6 11.Qb3 Qe7 12.Rfd1 e4 13.Ng5 h6+=; 8...Nh6 9.de5 Ne5 10.Ne5 Be5 11.Nc3 Bb7 12.Bf3 Bf3 13.Qf3 0–0+=; 8...a5 9.b5 e4 10.Nfd2 Ngf6 11.Nc3 Qe7 12.Qb3 Bb7 13.Rfc1 Qe6+=) 9.Nfd2 Ngf6+= (9...c5 10.f3 Qg5 11.Qb3 cb4 12.fe4 Bh6 13.Rf3 a5+/– 1.22) 10.Qa4 Bb7 11.Nc3 0–0 12.a3 a6 13.Qc2 c5+=; 8.Nc3 Ngf6 (8...Ne7 9.Ng5 Nf6 10.d4 0–0 11.de5 de5 12.Nb5 h6 13.Nh3 Qd1+=; 8...a5 9.b5 Ngf6 10.d4 e4 11.Ng5 Qe7 12.Nh3 0–0 13.Qb3 Kh8+=; 8...Bb7 9.d4 a5 10.b5 Ngf6 11.Qb3 Qe7 12.Rad1 e4 13.Ng5 h6+=) 9.Ng5 Qe7 10.d4 0–0 11.d5 Nb8 12.a3 a6 13.Qd2 h6+=; 8.d3 Ngf6 (8...Nh6 9.Nc3 0–0 10.d4 c6 11.Qa4 Qc7 12.d5 c5 13.Qc6 Qc6+=; 8...a5 9.b5 Nh6 10.d4 Bb7 11.Nc3 0–0 12.Re1 Ng4 13.a3 h6+=; 8...Bb7 9.d4 a5 10.b5 Nh6 11.Nc3 0–0 12.Re1 Ng4 13.a3 h6+=) 9.Ng5 Qe7 10.Bf3 Rb8 11.Nc3 h6 12.Nh3 g5 13.Re1 Qf7–/+) 8...Bb7 (8...a5 9.b5 (9.Qa4+= Ne7 10.d4 Bb7 11.b5 0–0 12.Ng5 Rf6 13.Rd1 h6+=) 9...Ngf6 10.d4 Qe7 11.Nc3 Bb7 12.Rfd1 e4 13.Nd2 Qe6+=; 8...c5 9.d4 Qe7 10.Qa4 e4 11.Nfd2 Ngf6 12.Nc3 Bb7 13.Nb5 0–0+=; 8...Ngf6 9.d4 e4 10.Ng5 Nb8 11.Nc3 0–0 12.b5 c5 13.dc5 dc5+=; 8...Nh6 9.d4 e4 10.Nfd2 a5 11.b5 0–0 12.f3 Nf6 13.Nc3 Re8+/–) 9.Nc3 (9.d4 a5+= 10.b5 Nh6 11.Nc3 Nf7 12.Rfd1 0–0 13.Qc2 Re8+=) 9...g5 10.d3 g4 11.Nd2 h5 (11...a5 12.b5+= Nc5 13.Qc2 Qd7+=) 12.f4 ef4 (12...Ne7 13.Nd5 a5+=) 13.Nd5 Bd5 (13...Ngf6+=) 14.Bg7 Rh7 15.Rf4 Bg2 16.Kg2 (16.Bd4!? Bb7 17.Rf5=) 16...Rg7+= 17.Rf5 Qh4 18.d4 (18.Qc3 Ngf6 19.Kh1+=) 18...Qh3 (better is 18...Nh6 19.Rd5 Nf6–/+) 19.Kh1= Nh6 20.Rf2 (20.Bf1 Qh4 21.Rf4 Rf7+=) 20...0–0–0 (better is 20...g3 21.Rg2 Ng4 22.Bg4 Rg4+=) 21.c5+= Rdg8 (21...Re8!? 22.c6 Nf8+=) 22.c6+/– g3 23.cd7 Kd8 24.Rg2 gh2 25.Rh2 Qg3 26.Nf3?? (better is 26.Qb1 Qe3 27.Nf3= (27.Bh5 Nf5 28.Qe1 Ng3 29.Qg3 Rg3 30.Nf3 Rf3 31.Bg4 Qe4 32.Kg1 Rg4 33.Rg2 Qd4 34.Kh1 Qa1 35.Kh2 Rh4)) 26...Ng4–+ 27.Rg2 Nf2 28.Rf2 Qf2 (28...Qf2 29.Qg8 Rg8–+) 0–1. Demoulin,J (2070) – Verheyden,Jonas, 14th Open, Leuven BEL (4), 2002.

6.Be2 Nd7 7.0–0+= Ne7 A) 8.a3 0–0 (8...a5 9.d4 0–0 10.Nc3 e4 11.Nd2 ab4 12.ab4 Ra1 13.Qa1 Nb6+=; 8...h6 9.d4 0–0 10.Nc3 e4 11.Nd2 Re8 12.Qc2 Nf6 13.Nb3 c6+=; 8...Nc6 9.d4 0–0 10.Nc3 Re8 11.b5 Ne7 12.c5 ed4 13.Bc4 Kf8+/–) 9.d4 e4 10.Nfd2 Nf6 11.Nc3 d5 12.Qc2 Be6 13.Nb3 b6+=; B) 8.d4+= e4 (8...a5 9.Ng5 Nb8 10.b5 0–0 11.de5 de5 12.c5 Nd5 13.Bc4 c6+/–; 8...h6 9.de5 de5 10.c5 b6 11.Qa4 bc5 12.Be5 Be5 13.Ne5 cb4+/– 1.34; 8...0–0 9.Nc3 a5 10.b5 e4 11.Nd2 Nb6 12.Na4 Na4 13.Qa4 Be6+=) 9.Nfd2 a5 10.b5 0–0 11.Nc3 Nb6 12.Na4 Nd7 13.f3 Nf6+=; C) 8.Nc3 0–0 (8...e4 9.Nd4 Nf6 10.d3 0–0 11.a3 a5 12.Qc2 ab4 13.ab4 Ra1+=; 8...a5 9.b5 e4 10.Nd4 Nc5 11.f3 a4 12.a3 Be5 13.Rb1 d5+=; 8...h6 9.d4 0–0 10.Qb3 e4 11.Nd2 c5 12.bc5 dc5 13.d5 b6+=) 9.d4 e4 10.Ng5 Nf6 11.a3 d5 12.Nh3 Be6 13.Nf4 Bf7+=.

6.Be2 Qe7 7.b5 (7.d4 ed4 8.ed4 d5+=) 7...Be6= 8.0–0 Nd7 9.d4 e4 10.Nfd2 c5 (10...Ngf6 11.Nc3=) 11.Re1 (11.Nc3 0–0–0+=) 11...cd4 (11...0–0–0 12.Nc3+=) 12.ed4 Nb6 (12...d5 13.cd5 Bd5 14.Nc3+=) 13.Bf1 (13.a4 Rc8 14.Qb3 Nd7+=) 13...Rc8 Now all is on c4 14.Qb3 Qf7 (14...Nf6 15.d5 Bd7 16.Be2+=) 15.d5+/– Bd7 16.Nc3 Ne7 17.Nde4 (17.Qa3!?+/–) 17...fe4+= 18.Ne4 1–0. DEFFM – Andreasroe, freechess.org, 2016.

6.Be2 g5 =.

6.d4 e4

7.Nfd2 c5 8.a3 cd4 9.Nb3 Nc6 10.Nd4 Nd4+=.

7.Nfd2 c6 8.Nc3 Nf6 9.a4 (9.Be2 a5 10.b5 0–0+=) 9...0–0= 10.Qb3 Be6 (10...Ng4 11.Be2 Qh4 12.g3=) 11.Be2 Qe7 12.a5 Nbd7 13.b5 (13.0–0 b5=) 13...Bf7 (13...a6 14.b6=) 14.a6 Rfb8 15.0–0 c5 (15...ba6 16.Ra6 cb5 17.Qc2 bc4 18.Nc4+=) 16.ab7 Rb7 17.Qc2 Nb6 (17...d5 18.dc5 Qc5 19.Na4+/–) 18.Na4 (18.d5 Rab8+/–) 18...Rc8 (18...a5 19.Nb6 Rb6 20.Bc3+=) 19.Nb3 (19.Nb6 Rb6 20.Ra5 cd4 21.Bd4 Rb7+/–) 19...Nfd7 (19...cd4 20.Nb6 ab6 21.Bd4+=) 20.Na5+/– Rbc7 (20...Na4 21.Nb7 Ndb6 22.Na5 Nb2 23.Qb2 cd4 24.ed4 Nc4 25.Qc3+/–) 21.Nc6 Qe8 22.Rfd1 (22.d5 Ra8+/–) 22...Qe6 (22...Na4!? 23.Qa4 d5+/–) 23.Qd2 (23.Qd2 cd4 24.Bd4+=; 23.d5 Qe8+–) 1–0. Pietrzak,Janusz – Baumann,Kurt, corr ICCF EU–M–GT, 1991.

7.Nfd2 Nc6 8.a3 Nf6 9.Be2 0–0 10.Nc3 Ne7 11.h4 h6 12.h5 g5 13.Qb3 Kh7 14.0–0–0 Be6 15.f3 d5 16.cd5 Ned5 17.fe4 Nf4 18.Bc4 Bc4 19.Qc4 Ng2 20.Qe2 Nh4 21.ef5 Nf5 22.Qd3 Qd7 23.Rdf1 Ng4 24.Nd1 Kh8 25.e4 Nh4 26.e5 Rf1 27.Rf1 Rd8 28.Nf3 Nf3 29.Qf3 Qc6 30.Qc6 bc6 31.Rf7 Rc8 32.Nf2 Nf2 33.Rf2 Kg8 34.Rc2 Rf8 35.Rc6 Rf2 36.Rc7 g4 37.e6 g3 38.e7 Re2 0–1. ferminkatcho (1695) – dragage (1850), internet, 2013.

7.Nfd2 Nc6 8.Qb3 (8.b5 Nce7+=) 8...Nf6= 9.Nc3 Ne7 (9...0–0 10.Be2+=) 10.Be2 0–0 11.b5 (11.0–0 d5+=) 11...Be6 (11...a6 12.ba6 ba6 13.0–0=) 12.0–0 g5 (12...a6 13.a4=) 13.f3+= ef3 14.Bf3 (14.Nf3 h6+=) 14...Rb8 (14...d5 15.Qc2+=) 15.g3 (15.Rae1 g4 16.Be2 g3+=) 15...h5 (15...d5 16.Qa4+=) 16.Rae1 Ng6 Black intends h4. Black prepares the advance f4 (16...Qd7 17.Qb4+=) 17.Nd5 (17.Qa4 a6+=) 17...h4+= 18.Nf6 Bf6 (18...Qf6 19.g4 Ne7 20.Qa3+/–) 19.e4 (19.Bh5 Nh8+/–) 19...f4 20.Bh5 Kh7 21.e5 (21.Bg6 Kg6 22.gf4 gf4+/–) 21...de5 22.Qc2 (22.Bg6 Kg6 23.gf4 gf4+=) 22...Rg8 (better is 22...e4!? 23.Ne4 Bd4 24.Bd4 Qd4 25.Kg2 Bf5=) 23.de5+/– Be7 24.gf4 gf4 25.Kh1 Kh6 (25...Qf8 26.Ne4+/–) 26.Bg6 Rg6 27.Rf4 Bh3 28.Rf2 (better is 28.Re2!?+/–) 28...Bc5= 29.Rfe2 Qg8 (29...Qg5!? 30.Nf3 Qg4 31.Bc1 Kg7+=) 30.Nf3 (30.Qc1 Kh5 31.Ba3+–) 30...Rf8 (better is 30...Bg4 31.Bc1 Kh5+/–) 31.Bd4?? (31.Bc1!? Kh5 32.e6+–) 31...Bg4 (31...Bd4 32.Qc1 Kh7 33.Nd4 Bg2 34.Rg2 Rg2+=) 32.Qd2?? (32.Nh4 Bd4 33.Ng6 Qg6 34.Qg6 Kg6 35.Rg2–/+) 32...Kh5 (32...Kh7 33.Nh4 Bd4 34.Ng6 Bf3 35.Rg2 Qg6–+ (35...Bg2?! 36.Qg2 Qg6 37.e6+=)) 33.Rf2? (better is 33.Ng1 Bd4 34.Qd4 Be2 35.Ne2+=) 33...Rf3 34.Bc5 Qc4 0–1. Lebel,Patrick (2170) – Bricard,Emmanuel (2445), St Affrique op 9th, 2001.

7.Nfd2 Ne7 8.a3 c6 (8...a5 9.Be2=) 9.Nc3 (9.Be2 0–0+=) 9...Be6 (9...0–0 10.Be2=) 10.Be2+= 0–0 11.0–0 d5 12.Rc1 (12.Qb3 Qd7=) 12...Nd7 (12...f4 13.cd5 Nd5 14.Bc4 fe3 15.fe3=) 13.c5 (13.Qb3 Qb6+=) 13...Nf6 (13...f4 14.Qb3=) 14.a4 White plans b5 (14.Qb3 b6=) 14...g5 (14...f4 15.Qb3 Qd7 16.b5=) 15.b5 (15.f3 g4 16.f4 g3=) 15...Qe8 (15...f4 16.Qb3 Qd7 17.Rce1=) 16.Kh1 (16.Qb3 Qf7+=) 16...g4 (16...f4 17.Nb3=) 17.Rg1 (17.Qb3 Qg6+=) 17...h5 (17...f4 18.ef4 Ng6 19.g3=) 18.f3 (18.Qb3 h4+=) 18...Qg6= 19.Qf1 (19.f4 g3 20.bc6 gh2+=) 19...h4 20.f4 (20.Qe1 cb5 21.ab5 Qh6=) 20...Nh5 (20...g3 21.h3=) 21.Qe1 Bf6 Black gets the initiative (21...g3 22.h3=) 22.Nf1 (22.Rf1 g3+=) 22...Kg7 (22...g3 23.h3=) 23.a5 (23.bc6 bc6 24.Rb1 Rh8=) 23...Rh8= 24.h3 Ng3 25.Ng3 hg3 26.Qf1 (better is 26.Bf1=) 26...Rh6 27.Qd1 (27.a6 gh3 28.Qd1 ba6 29.bc6 Rb8–+ (29...Nc6?! 30.Qa4 h2 31.Rgd1–/+)) 27...Rah8 28.Bf1 (better is 28.bc6 bc6 29.Rb1–+) 28...Kf7 (28...gh3!? 29.Be2–+) 29.Rc2–/+ gh3 30.gh3 Bd7 (30...g2 A) 31.Bg2?? Qg3 32.Qf1 Rh3 33.Bh3 Rh3 (33...Qh3?! 34.Qh3 Rh3 35.Rh2 Re3 36.Rh7 Ke8 37.Rh6=) 34.Qh3 Qh3 35.Rh2 Qe3–+; B) 31.Rgg2 Rh3 32.Rh2–+) 31.b6 (better is 31.bc6!? bc6 32.Bc1–/+) 31...a6 32.Rh2 Ng8 (32...Rg8 33.Rd2 Qh7–+) 33.Ne2+= Bh4 34.Rhg2 (34.Qc2 Ke8+=) 34...Qh5 Do you see the mate threat? 35.Qe1?? (better is 35.Rg3 Bg3 36.Rg3–/+) 35...Qf3 0–1. Gorski,Adam – Niespielak,Oskar, Kolobrzeg Poland–ch U12, 2001.

7.Nfd2 Ne7 8.Nc3 0–0 9.Qb3 Kh8 10.Be2 a5 11.b5 c6 12.0–0 cb5 13.cb5 Rf6 14.a4 Be6 15.Bc4 Qd7? (better is 15...d5!? 16.Be2 f4=) 16.d5+/– Bg8 17.f3 ef3 18.Nf3 h6 19.e4 f4 (19...Rf7!?+/–) 20.Ne2 g5 (better is 20...Rf8+–) 21.Bf6 Bf6 22.h3 (22.Rac1 Qd8+–) 22...Ng6? (better is 22...Ba1!? 23.Ra1 Bh7 24.Qc3 Kg8+/–) 23.Rae1 g4 (23...Qc7 24.Rc1+–) 24.hg4 Qg4 25.Ned4 (25.Nh2 Qh4+–) 25...Nd7? (25...Nh4 26.Qc2 Nd7+–) 26.Nf5 Nc5 27.Qc2 (27.Nh6 Qh5 28.Ng8 Bd4 29.Nd4 Nb3 30.Bb3 Rg8=) 27...Be5 (27...Rd8 28.Be2+–) 28.Nh6 Qh5 (28...Qd7 29.Ne5 Ne5 30.Rf4+–) 29.Nf5 b6 (29...Qh7+–) 30.Kf2 Bh7 31.Rh1 Qg4 (31...Nh4 32.Rh4 Qg6+–) 32.Rh2 (better is 32.Rh7 Kh7 33.Rh1 Nh4 34.Rh4 Qh4 35.N3h4+–) 32...Ra7 33.Reh1 (worse is 33.Ne5 Ne5 34.Be2 Qg5+–) 33...Nf8 34.Be2 Rg7 (34...Qg8+–) 35.Ne5 de5 (35...Qg3 36.Kf1 Qg5 37.Nc4+–) 36.Bg4 Rg4 37.Qc3 Ncd7 0–1. barborski – pakruka1 (1625), internet, 2013.

7.Nfd2 Ne7 8.Nc3 d5 9.cd5+/– Nd5 10.Nd5 Qd5 11.Bc4 Qd6 12.Qa4 Bd7 13.b5 c6 14.Rc1 c5?? (better is 14...cb5 15.Bb5 Na6+/–) 15.dc5+– (15.dc5 Qe7 16.Bg7 Qg7 17.Bd5+–) 1–0. pierred – anony, internet, 2014.

7.Nfd2 Ne7 8.Be2 c5 =.

7.Nfd2 Nf6 (--> 1.b4 e5 2.Bb2 d6 3.c4 f5 4.e3 Nf6 5.Nf3 g6 6.d4 e4 7.Nfd2 Bg7).

6.Be2 Nf6

7.0–0 Na6 8.Qa4 Qd7 9.Qb3 =.

7.d4 ed4 8.Bd4 Nc6 =.

7.d4 e4 8.Nfd2 0–0 9.0–0 c5 10.a3 cd4=.

7.d4 e4 8.Nfd2 0–0 9.0–0 c5 10.bc5 dc5=.

7.d4 e4 8.Nfd2 0–0 9.0–0 Nbd7 10.f3 ef3 11.Bf3 (worse is 11.Nf3 Qe7 12.Qb3 Ng4+=; worse is 11.gf3 Qe7–/+) 11...c6 12.e4 (12.Na3!?=) 12...fe4+= 13.Ne4 Ne4 14.Be4 Nf6 15.Nd2 Bg4 (15...Ne4 16.Ne4 d5 17.cd5 Qd5 18.Rf8 Kf8 19.Qf1 Bf5 20.Ng3+=) 16.Qc2 Qe7 17.Rae1 Qd7 18.h3 Ne4 19.Ne4 (19.Re4? Rf1 20.Nf1 Bf5–+) 19...Bf5 20.g4 Be4 21.Qe4 d5 22.cd5 cd5 23.Rf8 Rf8 24.Qe6 Qe6 25.Re6 Rf4 26.Re8 Kf7 27.Rb8 Bd4 28.Bd4 Rd4 29.Rb7 Kf6 30.a4 (30.Rh7 Rb4 31.Ra7 Ke5+=) 30...Rc4 (30...a5 31.ba5 Ra4 32.Rb6 Ke5 33.a6+=) 31.b5 (better is 31.Rh7 Rb4 32.Ra7+=) 31...d4?? (31...Ra4 32.Rh7 g5 33.Kf2+=) 32.Kf2?? (better is 32.Ra7 Rb4 33.Kf1+/–) 32...Ra4= 33.Rh7 Ke5 34.Re7 Kd6 35.Rb7 Kc5 36.h4 d3 37.Ke3 Rg4 38.Kd3 Rh4 39.Ra7 Kb5 40.Rg7 Rg4 41.Ke3 Kc5 42.Rd7 Kc6 43.Rd8 Kc7 44.Rd1 Rg2 45.Kf3 Rg5 46.Kf4 Rb5 47.Rg1 Rb6 48.Kg5= Rb8 49.Kh6 Kd6 50.Rg6 Ke5 51.Rg5 Kf4 52.Rg7 Rb6 53.Kh7 Kf5 54.Rf7 Ke6 0–1. typ48 – amon5, internet, 2013.

7.0–0 0–0

8.a3 h6 9.Qc2 Be6 10.d4 ed4 11.Nd4 Bf7 12.Bf3 c6 13.Nd2 d5 14.c5 Nbd7 15.Rac1 Qe7 16.g3 Ne5=+ 17.Bg2 Ne4 18.Ne4 fe4–/+ 19.Ne2 Rac8 20.Be5 Qe5 21.Bh3 Rc7 22.Nd4 Qh5 23.Bg2 Qe5 24.Qa4 a6 25.Qb3 Kh7 26.Qc2 Kh8 27.Rcd1 Be6 28.Rd2 Bg4 29.a4 Qe7 30.a5 Qd7 31.f4 Bh3 32.Qb1 Bd4 33.Rd4 Qg4 34.Bh3 Qh3 35.Qc2 Rcf7 36.Rd2 g5 37.Rdf2 g4 38.Qb2 Kh7 39.Qe5 Rf5 40.Qe7 R8f7 41.Qe6 h5 42.Qe8 h4 43.Qd8 hg3–/+ 44.hg3 Qg3–+ 45.Rg2 Qe3 46.Rff2 g3 47.Qh4 (47…Kg8 48.Rg3 Qg3 49.Qg3 Rg7 50.Kh2–+). Slavisa666 – draskod, Live Game Caissa's Web, 2004.

8.a4 a5 9.b5 Nbd7 10.d3 h6 11.Nh4 Kh7 12.g3 Rg8 13.Bf3 Nf8 14.Bh1 g5 15.Nf3 Ng6 16.Qc2 f4 17.ef4 gf4= 18.d4 Ng4? 19.de5 de5 20.Nh4+– Bf6 21.Ng6 Rg6 22.Be4 Qg8 23.Bg6 Qg6 24.Qg6 Kg6 25.h3 e4 26.Bf6 Nf6 27.gf4 Bh3= 28.Re1 Kf5 29.Kh2 Bg4 30.Nc3 Bf3 31.Ne2 Ng4 32.Kg1 Rg8 33.Ng3 Kf4–/+ 34.Ra2? Ne5 35.Kh2–/+ Ng4 36.Kh3?? Nf2!–+ 37.Rf2 Rg3 (37...Rg3 38.Kh4 Rg5 39.Rf3 ef3–+) 0–1. algernon (2285) – jvanmechelen (2465), net–chess.com, 2009.

8.Qb3 e4 9.c5 Kh8 10.Nd4 =.

8.Qb3 Kh8 9.d3 (9.d4 e4 10.Ng5 h6+=) 9...h6 (9...e4 10.Nd4=) 10.Nbd2 (10.d4 e4 11.Nh4 Kh7=) 10...Be6 11.h3 (11.Nh4 Kh7+=) 11...Nbd7 12.Nh2 (12.d4 e4 13.Ne1 a5=) 12...f4 (12...a5 13.f4=) 13.d4 (13.ef4 ef4 14.Rfe1 Re8=) 13...g5 (13...fe3 14.fe3 a5 15.ba5=) 14.d5 (14.ef4 gf4 15.Qf3 ed4 16.Bd4 c5=) 14...Bf5= 15.Bg4 (15.ef4 gf4 16.Qf3 a5=) 15...Bg4 (15...Ng4 16.Ng4 Nf6 17.Nf6 Qf6 18.e4=) 16.Ng4 h5 (16...Ng4!? 17.hg4 a5=) 17.Nf6+= Nf6 (17...Qf6 18.e4+=) 18.ef4 (18.e4 g4 19.hg4 hg4+=) 18...gf4+= 19.Rfe1 (19.Qf3 a5+=) 19...Bh6 (19...a5 20.ba5 Ra7 21.c5+/–) 20.Qd3 (20.Qf3 a5 21.a3 ab4 22.ab4 Ra1 23.Ra1 Bg7+/–) 20...Rg8 21.Nf3 (21.Ne4 Ne4 22.Qe4 Qg5+/–) 21...Qd7 22.Kh1 Rae8 23.Nd2 (23.c5 Qg7 24.Rg1 e4=) 23...Rg7 (23...c6 24.dc6 bc6 25.Qf3+=) 24.Qf3 Qe7 (24...c6 25.dc6 bc6 26.Rad1+/–) 25.Ne4 (better is 25.Bd4+/–) 25...Ng4?? (better is 25...Reg8 26.Nf6 Qf6+=) 26.hg4+– hg4 27.Qd3 Qh4 28.Kg1 g3 29.Qf3 (29.fg3 fg3 30.Qf3 Bf4+–) 29...Reg8 (29...gf2 30.Qf2 Qf2 31.Kf2+– (31.Nf2?! Reg8+/–)) 30.fg3 Rg3 31.Ng3 (31.Qg3 fg3) 31...fg3 (31...Qg3 32.Kh1 Qf3 33.gf3 Rg3+–) 32.Qe4 Rg4? (better is 32...Qh2 33.Kf1 Rf8 34.Ke2 Rf2 35.Kd3 Rd2 36.Kc3 Qg2 37.Qg2 Rg2+–) 33.Be5 (33.Qf3 Rg8 34.Be5 de5+–) 33...Kg8 34.Qf5 de5 35.Qc8 Kh7 36.Qc7 Bg7 37.Qd7?? ½–½. Annegarn,Alexander – Cordes,Till (1620), DSSM WK2 Husum, 2002.

8.Nc3 c6 9.a3 (9.d4 Nbd7+=) 9...h6 (9...e4 10.Nd4=) 10.c5 (10.d4 Nbd7+=) 10...Re8 (10...e4 11.Qb3 Kh7 12.Nd4=) 11.cd6 (11.d4 ed4 12.Nd4 b5+=) 11...Qd6 12.d4 e4 (12...ed4 13.Qd4 Nd5 14.Qg7 Kg7 15.Ne4 Qf6 16.Nf6 Nf6 17.Rac1+/–) 13.Nd2 (13.Ne5 Nd5+=) 13...Be6 14.Nc4 Bc4 15.Bc4 Kh7 16.h3 Nbd7 17.Rc1 Nb6 18.Bb3 (18.Bf7 Rf8 19.Qb3 Nbd5 20.Bd5 Nd5 21.Nd5 cd5=) 18...a6 (18...f4 19.b5=) 19.Qc2 Rad8 20.Ne2 (20.Bf7 Rf8 21.Bb3 Nbd5=) 20...Nbd5= 21.Qc5 Re7 22.Qd6 Rd6 23.Rc2 g5 (23...Red7 24.Rfc1=) 24.Ng3+= Kg6 25.Rfc1 (25.Bc1 f4 26.Nh1 Rf7+=) 25...f4+= 26.Nf1 Red7 27.Nd2? (better is 27.g3+=) 27...Re7?? (27...fe3 28.Nc4 ef2 29.Kf2 g4=) 28.Nc4+= Rd8 29.Re1 (29.Rf1 fe3 30.fe3 g4=) 29...Kf5 30.Ne5 Nd7 31.Nd7 (31.Bd5 cd5 32.Nd7 Red7 33.g4 fg3 34.fg3 Rf8+=) 31...Red7+= 32.ef4 (32.g4 fg3 33.fg3 Kg6=) 32...Nf4 (32...gf4!? 33.Rce2 Re8–/+) 33.Rc5 Kg6 34.Re4 Bd4 35.Bd4 Rd4 36.Bc2 Re4 37.Be4 Kf7 38.h4 Rd1 (38...Rd4 39.Re5+=) 39.Kh2 Rd4 (39...Re1 40.Re5 Kf6 41.Re8+=) 40.Bf5 (40.Re5+=) 40...Nd3 (40...gh4!? 41.Re5 Rd2–/+) 41.Bd3= Rd3 42.hg5 hg5 43.Rg5 Ra3 44.Rf5 (44.Rh5 Kg6 45.Rh3 Ra4=) 44...Kg6 45.Rf4 a5 46.ba5 Ra5 47.g4 (47.Rc4 Kf5+=) 47...b5 48.Rf5 Ra8 49.Rf8?? (better is 49.Rc5 Ra6 50.f4+=) 49...Rf8–+ (49...Rf8 50.f4 Rf4–+) 0–1. Woschkat,Karl_Heinz – Preiss,Veronika, compuserve, 1996.

8.Nc3 Nc6 9.b5 Ne7 10.d4 +=.

8.d4 e4 9.Ng5 Nc6 =.

5.Nf3 Nf6

(--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 d6 5.e3 e5).

6.d4 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.d4 e5).

6.d4 ed4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 d6 5.e3 e5 6.d4 ed4).

6.d4 ed4 7.ed4 0–0 8.Be2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.ed4).

6.d4 ed4 7.Qd4 0–0 8.Be2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.Qd4).

6.d4 ed4 7.Nd4 0–0 8.Be2 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.d4 e5 7.Be2 ed4 8.Nd4).

6.Be2 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.Be2 e5).

6.Be2 0–0 7.0–0 Nbd7 8.d4 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 0–0 5.e3 d6 6.d4 e5 7.Be2 Nbd7 8.0–0).

5.Nf3 Bg4

6.a3 Bf3 7.Qf3+= c6 (7...Nc6 8.Nc3+=) 8.Be2 Qf6 9.Qg4 Nd7 10.0–0 Nh6 11.Qg3 0–0 12.d4 (12.e4 Rfd8+=) 12...Qe7 (12...ed4!? 13.Bd4 Nf5 14.Bf6 Ng3 15.hg3 Bf6=) 13.de5= Be5 14.Qf3?? (better is 14.Be5 Ne5 15.Nc3+=) 14...Bb2–+ 15.Nd2 (15.Ra2 Bf6–+) 15...Ba1 (15...Ba1 16.Ra1 Nf5–+) 0–1. Nikolova,Angelika – Tenev,Bogdan, 134th MGU Open, 2015.

6.a3 Nf6 7.Nc3 =.

6.Nc3 Na6 +=.

6.Be2 a5 7.b5 =.

6.Be2 b6 7.a3 (7.0–0 Nf6+=) 7...Nd7 (7...Nf6 8.0–0+=) 8.Nc3 (8.0–0 Ngf6+=) 8...Ngf6 (8...e4 9.Nd4 Ne5 10.Qa4 Bd7 11.Qc2+=) 9.Qb3 (9.0–0 0–0+=) 9...0–0= 10.d4 ed4 (10...e4 11.Nd2 Be2 12.Ne2=) 11.Nd4 Be2 12.Nce2 Ne4 (12...Ne5 13.f4 Ned7 14.Qd3=) 13.f3+= Ng5 (13...Nef6 14.0–0+=) 14.0–0 Ne5 (14...Qe8 15.Nf4+=) 15.Nf4 (better is 15.f4!? Ne4 16.fe5+–) 15...Qd7 (15...Re8 16.e4+=) 16.Rad1 Nc6 (16...Ne6 17.Qc2+=) 17.Nd5 (17.Nc6 Qc6 18.Bg7 Kg7 19.Qc3 Kh6+–) 17...Nd4 18.Bd4 Bd4 (18...Ne6 19.Bg7 Kg7 20.Qc3 f6 21.Qd3+=) 19.ed4 Kg7 20.Qc3 (20.f4 Ne4+/–) 20...c6+= 21.Nf4 White prepares d5 21...Kg8 (21...d5!?+=) 22.d5+/– c5 (22...Qf5 23.Ne2 cd5 24.Rd5 Qe6+/–) 23.b5 (23.h4!? Qf5 24.Qd2 cb4 25.ab4 Rac8+–) 23...a6 (23...h6 24.Rfe1+=) 24.a4 (better is 24.h4!? ab5 25.hg5 bc4 26.Nh3+/–) 24...ab5 (24...Qf5 25.Nd3 h6 26.Rde1+=) 25.ab5 Rfe8? (better is 25...h6+=) 26.h4+– Nh3? (better is 26...Qf5 27.Qd2 Ra4+–) 27.Nh3 (27.gh3?! Qf5 28.Qc1 Qf6+–) 27...Qf5 (27...Qd8 28.Ng5+–) 28.Ng5 (28.Nf2 Re2 29.Ng4 Qc2 30.Nf6 Kh8 31.Qc2 Rc2+–) 28...h6 (28...Re2 29.Ra1 Raa2 30.Ra2 Ra2 31.Re1+–) 29.Ne4 Qf4 (29...Red8+–) 30.Nf6 Kg7 (30...Kf8 31.Ne8 Qe5 32.Qe5 de5+–) 31.Nh5 1–0. Plock,Joerg – Little Wing, schach.de, 5m + 0s, 2004.

6.Be2 Nc6 7.a3 Nge7 (7...Nf6 8.d4=) 8.h3 Bf5 9.d3 a6 10.e4 Be6 11.Nc3 Nd4 12.Nd4 ed4 13.Nd5 Nd5 14.cd5 Bd7 15.0–0 a5 (15...0–0 16.Rc1=) 16.Qc2 ab4 (16...0–0 17.Qc4+=) 17.ab4 Ra1 18.Ra1 0–0 19.f4 1–0. DEFFM – ebbhw, freechess.org, 2017.

6.Be2 Nc6 7.b5+= Na5 8.Bc3 Bf3 (8...c5 9.Qa4 b6 10.0–0+=) 9.Bf3+/– (worse is 9.gf3 b6+=) 9...Nc4 (9...a6 10.Ba5 e4 11.Bc3 Bc3 12.Nc3 ef3 13.Qf3 ab5 14.cb5+–) 10.Bb7 Ne7 (10...Rb8!? 11.Bc6 Kf8+/–) 11.Ba8+– Qa8 12.0–0 0–0 13.a4 a6 (13...d5 14.d3 Nd6 15.d4+–) 14.Qe2 (14.d3 Nb6+–) 14...ab5 (14...d5 15.d3 Nd6 16.Na3+–) 15.ab5 Qd5 16.d3 (16.Ra4 Nb6 17.Ra7 Qc5+–) 16...Nb6 17.Ra5 Nf5 (17...f5 18.Rc1+–) 18.Nd2 Qc5 (18...Ra8 19.e4 Nd4 20.Bd4 (20.ed5? Ne2 21.Kh1 Nc3 22.Ra8 Na8–+) 20...Qd4 21.Ra8 Na8 22.Nf3+–) 19.Ne4 Qd5 20.g4 (20.Rfa1 Rb8+–) 20...Nh4 21.g5 f5 (21...Qe6 22.f4+–) 22.gf6 Bf6 23.f4 ef4?? (23...Be7+–) 24.Nf6 Rf6 25.Bf6 Nf5 26.Rf4 Qe6 27.Bd4 g5 (27...Nd4 28.Rd4 d5 29.Rf4+–) 28.Qg4 Nd4 29.Qg5 Qg6 30.Qg6 hg6 31.Rd4 (31.Rd4 Kf7 32.Ra7+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

6.Be2 Nc6 7.b5+= Nce7 8.d4 e4 9.Nfd2 Be2 10.Qe2 f5 11.f3 ef3 (11...d5 12.Nc3+=) 12.Qf3 Nf6 (12...d5!?+=) 13.Qb7+/– 0–0 (13...Qb8 14.Qf3+/–) 14.0–0 (14.Qf3 d5+/–) 14...Qd7 15.Nc3 Rfb8 (15...a6 16.Qf3+/– (16.ba6? Rab8–+)) 16.Qf3 Re8 17.e4 a6 (17...fe4 18.Nce4 Ne4 19.Ne4+/–) 18.a4 (18.Rae1 fe4 19.Nde4 Ne4 20.Re4 Rf8+/–) 18...ab5 (18...fe4 19.Nce4 Ne4 20.Ne4+/–) 19.ab5 (19.Nb5?! fe4 20.Ne4 Ne4 21.Qe4 c6=) 19...Ra1 20.Ba1 fe4 (20...Ng4 21.Qd3+/–) 21.Nde4 Rf8 22.Nf6 Rf6 23.Qa8 Rf8 (23...Kf7 24.Re1 Rf5 25.Ne4+/–) 24.Rf8+– Bf8 25.Qe4 Nf5 (25...Bg7 26.Nd5 Nd5 27.Qd5 (27.cd5?! Qb5 28.Bc3 h5=) 27...Kf8 28.Kf2+–) 26.Nd5 Kf7 (26...Qf7 27.g4 Ng7 28.g5+–) 27.g4 Nh6 (27...Ne7 28.Qf4 Kg7 29.Nf6+–) 28.h3 (28.g5 Qf5 29.Qf5 Nf5 (29...gf5?? 30.Nc7 Be7 31.gh6+–) 30.Nc7 Bg7+–) 28...Bg7 29.Bc3 Ng8? (better is 29...Kf8+–) 30.Qf4 Ke8 31.Ba5 c6 (31...g5 32.Qe3 Kf7 33.Bc7+–) 32.Nc7 Ke7 33.Qe4 Kf7 (33...Kf8 34.bc6 Bd4 35.Kg2+–) 34.bc6 Qe7 (34...Bd4 35.Kg2 Qc8 36.Qd4 Nf6+–) 35.Qd5 Kf6 36.g5 1–0. b4_player – opponent, gamecolony.com, 2007.

6.Be2 Bf3 7.gf3?! Nf6=.

6.Be2 Bf3 7.Bf3+= c6 8.Nc3 Ne7 9.h4 Nd7 10.h5 0–0 11.a4 a6 12.h6 Bf6 13.Ne4 Nc8 14.Qb3 Rb8 15.g4 c5 16.b5 a5 17.Ke2 b6 18.Rag1 White prepares g5 18...Bh8 19.g5 Qe7 20.Rh4 f5 21.gf6 Nf6 22.Ng5 Qd7? (better is 22...Rd8+/–) 23.Bc6+– Qe7 24.Qd3 Na7?? (24...Rf7+–) 25.Nh7! Nh7 (25...Qh7 26.Rg6 Double attack (26.Qg6 Decoy); 25...Nh7 26.Bd5; 25...Kh7 26.Qg6) 26.Qg6 Bg7 27.Bd5 Rf7 (27...Kh8 28.hg7 Qg7 29.Qg7) 28.Qg7 1–0. marekt – lout62001, internet, 2014.

6.Be2 Bf3 7.Bf3 c6 8.Nc3 Nf6 9.g4 (9.0–0 0–0 10.d3 Qd7 11.Rc1 d5+=) 9...Qe7 (9...0–0 10.d3 Nbd7 11.b5 Rc8=) 10.g5 Nfd7 11.h4 h6 12.Ke2 hg5 13.hg5 Qg5 14.Rh8 Bh8 15.Qh1 Bg7 16.b5 Qd8 17.Ba3 Nc5 18.bc6+/– bc6 19.Bc5 dc5 20.Bc6 Nc6 21.Qc6 Kf8 22.Qc5 Qe7 23.Qe7 Ke7 24.Rb1 Kd6 25.Rb7 Ke6 26.Nd5 (26.Nd5 Kd6 27.Rf7+–) 1–0. pierre – kuntakinte, internet, 2008.

6.h3 Be6 +=.

6.Be2 Nd7

7.0–0 Ne7 8.Nc3 0–0 9.a3 f5 10.Qb3 Bf3 11.Bf3 e4 12.Be2 c5 13.b5 b6 14.Rfd1 Ne5 15.d4 ed3 16.Bd3 Nd3 17.Rd3 Qc7 18.Rad1 Rad8 19.Ne2 Bb2 20.Qb2 Nc8 21.Nf4 Rfe8 22.Qf6 Qg7 23.Qg7 Kg7 24.Nd5 Re4 25.Rc1 g5 26.f3 Ree8 27.Rcd1 h5 28.Nc7 Re5 29.Rd5 Rd5 30.Rd5 Kg6 31.Kf2 Rd7 32.Na6 Re7 33.Nb8 g4 34.f4?? Re5?? 35.fe5 +–. Slavisa666 – draskod, Live Game Caissa's Web, 2004.

7.0–0 Ngf6 8.h3 Be6 9.d3 0–0 10.Nbd2 a5 11.a3 ab4 12.ab4 Ra1 13.Qa1 Ne8 14.Qa7 b6 15.Ra1 f5 16.Qb7 Nef6 (16...g5 17.Ra8 Qe7 18.Nh2+=) 17.Ra7 e4? (better is 17...Ne8+=) 18.Nd4+– Bf7 19.Nc6 (worse is 19.de4 Ne4 20.Ne4 fe4 21.Qc7 Qc7 22.Rc7 Nc5+–; 19.Qc7?! Qc7 20.Rc7 Ra8+–) 19...Qe8 20.Qc7 Qc8?? (20...d5+–) 21.Ne7 (21.Ne7 Kh8 22.Nc8+–) 1–0. Fournier,Frederic (1875) – fraytoribio (1705), Active ajedrez21.com, 2005.

7.d4 e4 8.Nfd2 Be2 9.Qe2 f5 10.0–0 Nh6 11.Nb3 Qe7 12.Nc3 0–0 13.Nd5 Qh4 (13...Qf7 14.Nc7 Rac8 15.Nb5 Qc4 16.Qc4 Rc4 17.Nd6 (worse is 17.Na7 Ra8 18.Nb5 Rb4=) 17...Rb4 18.Rfc1+/–) 14.g3 (14.Nc7 Rab8+–) 14...Qh3 (14...Qd8 15.Nf4 Qe7 16.Na5=) 15.Nf4 (better is 15.Nc7!? Rac8 16.Nb5+/–) 15...Qg4= 16.Qg4 Ng4 17.Rab1 Rae8 18.d5 Nde5 19.Be5 Ne5 (worse is 19...Re5 20.Na5+/–; worse is 19...de5 20.Ne6 Rf7 21.Nbc5+/–) 20.Ne6 Nf3 21.Kg2 Rf7 22.Ng7 Kg7 23.Rfd1 g5 24.Nd4 Nd4 25.Rd4 h5 26.c5 h4 27.Rc1 hg3 28.hg3 Kf6 29.Rcc4 Rh8 30.g4 Rh4 31.gf5 Kf5 32.f3 (32.Rc3!?+=) 32...ef3–/+ 33.Kf3 Kg6 (33...Rh3!? 34.Kf2 Rh2 35.Ke1 Ra2–/+) 34.Kg3 Rfh7 35.Rh4 gh4 36.Rh4 Rh4 37.Kh4 Kf5 38.cd6 cd6 39.Kg3 Ke4 40.Kf2 Kd5 41.Kf3 Kc4 42.Ke4 Kb4?? (42...b5 43.a3 a6–/+) 43.Kd5= Ka3 44.Kd6 Ka2 45.e4 b5 46.e5 b4 47.e6 b3 48.e7 b2 49.e8Q b1Q 50.Qa4 Kb2 51.Qa7 Kc1 52.Qc5 Qc2 53.Qe3 Qd2 54.Qd2 1–0. carpaticus (1740) – hhzk878, internet, 2013.

7.d4 Bf3 8.Bf3+= (worse is 8.gf3 Qg5+=) 8...ed4 (8...c6 9.0–0+=) 9.0–0+/– Ngf6 10.ed4 0–0 11.Nc3 (11.Bb7 Rb8 12.Qf3 Nb6+/–) 11...c6+= 12.Qb3 Qc7 13.Rfe1 Rfe8 14.h4 (14.a4 a5+=) 14...h6 (14...Rad8 15.b5=) 15.g3 (15.Rad1 Re1 16.Re1 Nb6+=) 15...Kh7 (15...a6 16.Rad1=) 16.Rad1 Re1 (16...Re6 17.Re6 fe6 18.Qc2+=) 17.Re1+= Re8 18.Re8 Ne8 19.Ne2 Nef6 20.Nf4 Nf8 (20...Nb6 21.c5 Nc8 22.d5+=) 21.Qa3 a6 22.d5 cd5? (better is 22...c5+=) 23.Bf6+– (23.Nd5?! Nd5 24.Bd5 Nd7+=; 23.cd5?! N6d7=) 23...Bf6 24.Nd5 (24.Bd5?! Kg7+=) 24...Qd8 25.Nf6 Qf6 26.Bb7 Ne6 (26...Qe6 27.Ba6 Qe1 28.Kg2+–) 27.Qa6 Qa1 (27...Qe7 28.Qb6+–) 28.Kg2 Qb1 (28...Qe5+–) 29.Qd6 Qa2 30.Bd5 Qd2 (30...Qa7+–) 31.Qd7 (31.Qd7 Kg7 32.Be6 Qd7 33.Bd7+–) 1–0. Janek – Querrew, internet, 2017.

7.h3 Bf5 8.0–0 Ngf6 9.d4 0–0 10.de5 de5 11.Ne5 (worse is 11.Be5 Ne5 12.Ne5 Qe7+=) 11...Ne5 12.Be5 Qd1 (12...Qe7!? 13.Bc3 Rfd8+=) 13.Rd1+/– (13.Bd1?! Bd3=) 13...c6 14.c5 Rfe8 15.Bb2 Rad8 16.Nc3 Nd5 17.Rac1 (17.Nd5 Bb2 18.Ne7 Kf8 19.Nf5 Ba1+=) 17...Nc3 (better is 17...Nb4 18.a3 Nd3 19.Bd3 Bd3=) 18.Bc3+/– (worse is 18.Rc3 Rd1 19.Bd1 Rd8–/+ (worse is 19...Bc3 20.Bc3 Rd8 21.Bd4=)) 18...Rd1 19.Bd1 Bc3 20.Rc3 Rd8 21.Bf3 Rd2 22.a3 Kf8 23.g4 Be6 24.Be4 f5 25.gf5 gf5 26.Bg2 Rd1 27.Kh2 Ke7 28.Kg3 Kf6 29.Bf3 Rg1 30.Kh2 Ra1 31.Rd3 Ke5 32.Kg2 Bd5 33.Bd5 cd5 34.f3 f4 (34...h6!?+/–) 35.ef4+– Kf4 36.Rd5 Ra3 (36...Ra2!? 37.Kf1 Ra3+/–) 37.Rd4+– Ke5 38.Re4 (38.Rd7 a5 39.ba5 Ra5 40.Rh7 Rc5 41.Rb7 Kf4 42.Rb4 Kg5+–) 38...Kf5 (38...Kf6 39.Kg3+–) 39.Kg3 (39.Re7 b6 40.Rh7 bc5 41.bc5 a5+–) 39...h5? (39...Rb3 40.Rh4+/–) 40.Rf4 (better is 40.Re7!? b6 41.cb6 ab6+–) 40...Kg5 41.h4 Kg6 42.Re4 Rb3 43.Kf4 Kf6 44.Rd4 Ke6 45.Rd6 (45.Kg5!? Rf3 46.Kh5+–) 45...Ke7+/– 46.Rd4 Ke6 47.Kg5 Rf3 48.Kh5 Rg3 49.Rg4 Rb3 50.Kg6 a5 51.ba5 Rb5 52.Rg5 (better is 52.h5 Ra5 53.h6 Rc5+–) 52...Ra5 53.h5 Ra8 54.h6 Rg8 55.Kh5 Rh8 56.Rg6 Kd5 57.Rg5 Kc6?? (57...Ke6 58.Rg7 Kd5+–) 58.Kg6+– Rg8 59.Kf6 Rh8 60.Kg7 Rd8 61.h7 Rd7 62.Kh6 Rh7 63.Kh7 b6 64.cb6 Kb6 65.Kg6 Kc6 66.Kf6 Kd6 67.Rf5 Kd7 68.Re5 Kd6 69.Re6 Kd7 70.Kf7 1–0. Fournier,Frederic (1900) – Headhunters (2000), Active, 2004.

6.Be2 Ne7

7.0–0 0–0 8.Qc2 Qe8 9.d3 Nbc6 10.a3 Rb8 11.b5 Nd8 12.Nbd2 d5 (12...f5 13.h3 Bh5 14.Rab1=) 13.h3 e4 (better is 13...Bf3!? 14.Bf3 c6+=) 14.Bg7+– Kg7 15.de4 Bf3 16.Bf3 de4 17.Ne4 Nf5 18.Qc3 f6 19.Rad1 Nh4 20.Bg4?? (better is 20.Nd2+–) 20...Qe4–/+ 21.f3 Qe5 22.Qb4?? (better is 22.Qe5!? fe5 23.Rd7 Rf7 24.Rfd1+=) 22...Qg3 (22...f5 23.Qe1 Qe7 24.Qc3 Kg8 25.g3 fg4 26.gh4 Qh4 27.Qe1 Qh3 28.f4–+) 23.Qd2? (better is 23.Qb2–+) 23...f5 24.Qd4 (24.Qf2 Qf2 25.Kf2 fg4 26.hg4 g5–+) 24...Kg8 25.Rf2 fg4 (25...Ne6 26.Qd7 Rfe8–+ (26...fg4?! 27.Qe6 Rf7 28.Qg4 Qg4 29.hg4+=)) 26.hg4 (26.Qg4 Qg4 27.hg4 g5–+) 26...Nf7 (better is 26...Nf3 27.Rf3 Rf3 28.Qd5 Rf7–+) 27.Qd5 (27.Qf4 Qf4 28.ef4–+) 27...Rbd8 0–1. ourang – ruagrip, internet, 2013.

7.0–0 0–0 8.d4 Nd7 9.Nbd2 c6 10.h3 Bf3 11.Nf3 (worse is 11.gf3 ed4 12.ed4 Nf5–/+) 11...e4 12.Nd2 f5 13.Qb3 Kh8 14.f3 Nf6 15.fe4 Ne4 16.Ne4 fe4 17.Rf8 Qf8 18.Rf1 Qe8 19.Bg4 d5 20.Be6 Rd8 21.cd5 (21.Qa4 Bh6 22.Bc1 Rd6+=) 21...cd5 (21...Nd5 22.Bd5 cd5 23.b5=) 22.a4 (22.b5!?+/–) 22...Rd6 23.Bg4 Rf6 24.Rc1 h5 25.Be2 Rc6 26.Bb5 Rc1 27.Bc1 Qc8 28.Ba3 (better is 28.Bd2=) 28...Bh6 29.Be2 (better is 29.Kh1–+) 29...Nf5 30.Qd5 Be3 31.Kf1 (31.Kh2 Bf4 32.Kg1–+) 31...Ng3 32.Ke1 Qc3 33.Kd1 Qd2# (33...Qa3?! 34.Qd8 Kh7 35.Qe7 Kh6 36.Qf8 Kg5 37.Qe7 Kh6 38.Qf8 Kh7 39.Qe7 Kh6=) 0–1. barborski – stenly1, internet, 2013.

7.0–0 0–0 8.d4 e4 (8...ed4 9.Bd4 f6 10.Nc3+=) 9.Nfd2 Be2 10.Qe2 f5 11.Nc3 c6 12.a4 d5 13.cd5 Nd5 14.Qc4 Kh8 15.Rac1 Qd6 16.Nd5 cd5 17.Qc5 Rd8?? 18.Qd6+– Rd6 19.Rc8 (19.Rc8 Bf8 20.Rf8 Kg7 21.Rc8+–) 1–0. smurilo (1740) – chrisalvin2005 (1650), chessHere.com, 2006.

7.a3 0–0 8.0–0 b6 9.d4 Nbc6 10.de5 Ne5 11.Ne5 Be2 12.Qe2 Be5 13.Be5 de5 14.Nd2 c6 15.Rfd1 Qc7 16.Nf3 c5 17.b5 a6 18.a4 a5 19.Rd2 e4 20.Ng5?? (better is 20.Ne1+=) 20...Qe5–+ 21.Ne4?! (21.Rad1 Qg5 22.Rd7–+) 21...Qa1 (21...Qe4?! 22.Rad1–+) 22.Rd1 (22.Qf1 Qe5 23.Nd6 Rfd8–+) 22...Qe5 23.Ng3 Nf5 24.Nf5 Qf5 25.Rd5 Qe6 (25...Qb1 26.Rd1 Qb3 27.Ra1–+) 26.f3 (26.Qd3 Qf6–+) 26...Rad8 27.e4 Rd5 28.cd5 Qe5 29.Qc4 Qd4 (better is 29...f5!? 30.h3–+) 30.Qd4 cd4 31.Kf2 Rc8 32.Ke2 Rc4 33.Kd3 Ra4 34.d6 Kf8 35.e5 Ke8 36.f4 Kd7 37.g4 (37.g3 Ra2 38.h4 Ra3 39.Kd4 Rg3–+) 37...Ke6 (better is 37...Rb4!? 38.h4–+) 38.h4 Rb4 39.f5 gf5 (39...Ke5 40.d7 Rb3 41.Kc2 Rb5 42.d8Q Rc5 43.Kd3 Rc3 44.Kd2 gf5 45.Qb8 Kd5 46.Qb7 Ke5 47.gf5+–) 40.gf5 Kd7 (40...Ke5 41.d7 Rb3 42.Kc2 Rb5 43.d8Q+–) 41.Ke4 (41.h5 a4 42.h6 Rb5–+) 41...d3! 42.Kd3 Rh4 (42...Rh4 43.f6 a4–+) 0–1. Fournier,Frederic (1705) – angelalber (1645), Active, 2005.

7.d4 e4 8.Nfd2 Be2 9.Qe2 0–0 (9...f5!?+=) 10.Ne4+/– Nbc6 11.a3 d5 12.cd5 Nd5 13.Nbd2 a5 14.b5 Nce7 15.0–0 c6 16.Rfc1 cb5 17.Qb5 Qb6 (better is 17...b6!?+/–) 18.Qb6+– Nb6 19.Nc5 Rab8 20.Rab1 Rfc8 21.Nde4 Ned5 22.Nd6 Rc7 23.Nb5 Re7 24.Nc3 Nf6 25.N3a4 (25.e4 Rd8+–) 25...Nbd5 (better is 25...Na4!? 26.Na4 b5+/–) 26.Bc3+– b6 27.Ba5! b5 (27...ba5 28.Rb8 Pinning (28.Rb8 Deflection)) 28.Nc3 Nc3 29.Rc3 Nd5?! (29...Ra7 30.Bb4 Nd5+–) 30.Rcb3 Bf8 31.Rb5 Ra8 32.Bb4 Rea7 33.g3 Bc5 34.Rc5 Nb4 35.ab4 (35.Rb4?! Ra3 36.Kg2 Ra2+–) 35...Rb7 36.b5 Rab8 37.e4 Kf8 38.d5 Ke7 39.f3 f6 40.Kf2 Rb6 41.Rc7 Kd6 42.Rh7 Rb5 43.Rb5 Rb5 44.Rh6 Rb2 45.Kg1 Rb1 46.Kg2 Rb2 47.Kh3 Rf2 48.Kg4 (better is 48.Rg6!? Ke5 49.Rg8 Rf3 50.Re8 Kd6+–) 48...Ke5 49.Rg6 f5 (49...Rh2 50.d6!+–) 50.ef5 Kd5 51.h4 Rb2 52.h5 Rb7 53.h6 Rh7 54.Kg5 Ke5 55.f4 (55.f4 Kd5 56.Rg8+–) 1–0. Fournier,Frederic (1880) – ivesaran (1700), Active, 2005.

7.h3 Bd7 (7...Be6 8.d4=) 8.b5 (8.d4 0–0+=) 8...0–0 (8...a6 9.0–0=) 9.Nc3 (9.d4 ed4 10.Bd4 Re8+=) 9...a6 (9...e4 10.Nd4=) 10.a4 (10.0–0 ab5 11.cb5 c5=) 10...c6 (10...Nf5 11.d4=) 11.0–0 ab5 (11...e4 12.Ne1=) 12.ab5+= Ra1 13.Qa1 cb5 (13...Nf5 14.d3+=) 14.cb5 (14.Nb5 Bb5 15.cb5 Nd7+=) 14...Be6 (14...Qc7 15.d4 Rc8 16.de5 de5 17.Ne4+/–) 15.d3 (15.d4 Nd7+=) 15...h6 (15...Qb6 16.d4 Nd7 17.e4 ed4 18.Na4+=) 16.d4 e4 (16...Re8 17.Rd1 Bb3 18.Rd2+/–) 17.Nd2 (better is 17.Ne4!? f5 18.Ned2+/–) 17...d5 (17...f5+=) 18.f3 (18.Qa7 b6+=) 18...f5 (18...Nf5 19.Nd1+=) 19.fe4 (19.Nb3 b6=) 19...fe4 20.Nb3 (20.Rf8 Bf8 21.Qa2 Bf7=) 20...Nf5 21.Nc5 (21.Bg4 Qg5 22.Rf4 Nd7=) 21...Bc8 (better is 21...Bf7 22.Nb7 Qc7–/+) 22.Bc1?? (better is 22.Qa7 Nd4 23.Rf8 (23.ed4? Bd4 24.Kh1 Rf1 25.Bf1 Qf8–+) 23...Qf8 24.Nb7 Ne2 25.Ne2 Bb2 26.Qb8 Bb7 27.Qb7+=) 22...Nd4–/+ 23.Rf8 Qf8 (worse is 23...Kf8 24.ed4 Bd4 25.Kh1+/–; 23...Bf8? 24.ed4 Bg7 25.Be3+–) 24.N5e4?? (better is 24.Qa7 Qd6 25.N5a4 Nf3 26.Kf2–+) 24...Ne2 (24...Ne2 25.Ne2 Ba1–+; 24...de4?! 25.ed4 Bd4 26.Kh1–/+) 0–1. GuestNSBZ – GuestMLVZ, freechess.org, 2017.

6.Be2 Nf6

7.0–0 a5 A) 8.h3 Be6 (8...Bf3 9.Bf3 ab4 10.Bb7 Ra7 11.Bf3 0–0 12.d3 Qd7; 8...Bf5 9.b5 Nbd7 10.Nc3 0–0 11.d4 ed4 12.Nd4 Ne4) 9.b5 0–0 10.Nc3 Nbd7 11.Ng5 Qe7 12.Ne6 Qe6; B) 8.Qa4 Nbd7 (8...Bd7 9.b5 e4 10.Ng5 0–0 11.Qc2 Bf5 12.Nc3 Nbd7; 8...Qd7 9.b5 e4 10.Nd4 0–0 11.Nc3 Be2 12.Nde2 Qd8) 9.h3 Bf5 10.Nc3 0–0 11.ba5 Nc5 12.Qb4 Nd3; C) 8.b5 Nbd7 (8...0–0 9.Nc3 Nbd7 10.h3 Bf5 11.d4 ed4 12.Nd4 Ne4; 8...Qe7 9.d4 e4 10.Ng5 Bf5 11.Nc3 0–0 12.Qd2 h6) 9.h3 Bf5 10.d4 0–0 11.Nbd2 ed4 12.Nd4 Ne4.

7.0–0 Nc6 A) 8.Nc3 Nb4 (8...0–0 9.b5 Na5 10.Qa4 c6 11.h3 Bf5 12.d4 Nd7; 8...a6 9.b5 Ne7 10.h3 Bf5 11.g4 Be6 12.d4 ed4) 9.Qb3 Na6 10.d4 ed4 11.ed4 0–0 12.h3 Bf5; B) 8.h3 Bf5 (8...Bd7 9.b5 Ne7 10.Nc3 0–0 11.d4 ed4 12.Nd4 Nf5; 8...Be6 9.b5 Ne7 10.d4 0–0 11.Nc3 ed4 12.Nd4 Qd7) 9.b5 Ne7 10.d4 ed4 11.Nd4 0–0 12.Bf3 Rb8; C) 8.a3 0–0 (8...e4 9.Nd4 Ne5 10.f3 ef3 11.Nf3 Bf3 12.Bf3 0–0; 8...a6 9.h3 Bf5 10.d4 ed4 11.Nd4 Nd4 12.Bd4 c5) 9.Nc3 e4 10.Nd4 Be2 11.Qe2 Ne5 12.f3 c5; D) 8.b5 Ne7 (8...Na5 9.Qa4 c5 10.h3 Bf5 11.Bc3 b6 12.Nh4 Be6) 9.Nc3 0–0 10.Qc2 c5 11.h3 Bf5 12.Bd3 Bd7.

7.0–0 e4 8.Ng5 (8.Nd4 Be2 9.Qe2 Na6 10.b5 Nc5 11.Nc3 0–0 12.f3 ef3) 8...Be2 (8...Bf5 9.f3 0–0 10.fe4 Bd7 11.Qb3 h6 12.Nf3 Ne4) 9.Qe2 0–0 10.f3 Na6 11.a3 d5 12.cd5 Qd5.

7.Qa4 A) 7...Qd7 8.Qd7 (8.Nc3 Qa4 9.Na4 Nc6 10.b5 Nb4 11.0–0 e4 12.Nd4 Be2) 8...Nbd7 (8...Kd7 9.b5 Ke7 10.h3 Be6 11.Ng5 Nbd7 12.Nc3 a6; 8...Bd7 9.b5 0–0 10.Nc3 Bf5 11.h3 h5 12.d4 Nbd7) 9.Na3 0–0 10.h3 Bf3 11.Bf3 e4 12.Be2 a5; B) 7...Bd7 B1) 8.b5 e4 (8...0–0 9.Nc3 e4 10.Nd4 Na6 11.0–0 Nc5 12.Qc2 Qe7; 8...Bf5 9.d4 e4 10.Nfd2 0–0 11.h3 Re8 12.Nc3 c5) 9.Nd4 Na6 10.Nc3 Nc5 11.Qc2 0–0 12.0–0 Qe7; B2) 8.Qc2 Bf5 (8...a5 9.b5 Bf5 10.d3 e4 11.de4 Be4 12.Qd2 0–0; 8...0–0 9.Nc3 Re8 10.0–0 e4 11.Nd4 c5 12.bc5 dc5) 9.Qa4 Nc6 10.b5 Ne7 11.Nc3 0–0 12.0–0 a6; B3) 8.Qb3 0–0 (8...e4 9.Ng5 0–0 10.Nc3 Qe7 11.f3 ef3 12.Bf3 Nc6; 8...a6 9.Nc3 Nc6 10.0–0 0–0 11.Ng5 Bf5 12.f3 Qd7) 9.Nc3 a5 10.b5 Bf5 11.0–0 Nbd7 12.d4 ed4; C) 7...Nbd7 C1) 8.Nc3 0–0 (8...a5 9.0–0 0–0 10.ba5 Nc5 11.Qb4 e4 12.Ng5 Be2; 8...Bf5 9.0–0 0–0 10.d4 Re8 11.c5 a5 12.cd6 cd6) 9.h3 Bf3 10.Bf3 a5 11.d3 ab4 12.Qb4 Nc5; C2) 8.h3 Be6 (8...Bf5 9.g4 Be6 10.Nc3 a5 11.Ng5 ab4 12.Qb4 Ra6; 8...Bf3 9.Bf3 a5 10.Nc3 0–0 11.d3 ab4 12.Qb4 Nc5) 9.Nc3 0–0 10.Ng5 Nb6 11.Ne6 Na4 12.Nd8 Nc3; D) 7...Nc6 D1) 8.Nc3 0–0 (8...a6 9.h3 Be6 10.Ng5 Bf5 11.d3 0–0 12.0–0 d5) 9.0–0 e4 10.Nd4 Nd4 11.ed4 Be2 12.Ne2 d5; D2) 8.h3 Bd7 (8...Bf5 9.g4 Bd7 10.b5 Ne7 11.Nc3 0–0 12.g5 Nh5; 8...Be6 9.b5 Ne7 10.Nc3 a6 11.b6 Bd7 12.bc7 Qc7) 9.b5 Ne7 10.c5 0–0 11.Nc3 a6 12.cd6 cd6; D3) 8.h4 0–0 (8...Qd7 9.b5 Ne7 10.Nc3 0–0 11.c5 Bh5 12.cd6 cd6; 8...e4 9.Nd4 Qd7 10.Nc6 Be2 11.Ke2 bc6 12.h5 gh5) 9.b5 Ne7 10.Nc3 Nf5 11.Qc2 a6 12.a4 ab5; D4) 8.b5 Ne7 9.Nc3 0–0 10.h3 Bd7 11.c5 a6 12.cd6 cd6.

7.Qb3 A) 7...a5 8.h3 (8.Nc3 ab4 9.Qb4 0–0 10.0–0 Na6 11.Qb7 Qd7 12.Qb5 c6) 8...Be6 (8...Bc8 9.b5 Nbd7 10.d4 ed4 11.ed4 0–0 12.Nc3 Re8; 8...Bf5 9.g4 Be6 10.Ng5 Bc8 11.b5 Nbd7 12.Nc3 Nc5) 9.Ng5 ab4 10.Ne6 fe6 11.Qb4 0–0 12.Nc3 Na6; B) 7...0–0 B1) 8.h3 Bf3 (8...Be6 9.Ng5 a5 10.Ne6 fe6 11.ba5 Nbd7 12.0–0 Ne4; 8...Bd7 9.Nc3 e4 10.Nd4 Nc6 11.Nc6 Bc6 12.0–0 Qe7) 9.Bf3 e4 10.Be2 a5 11.ba5 Nbd7 12.Bd4 Nc5; B2) 8.Nc3 e4 (8...a5 9.h3 ab4 10.hg4 bc3 11.Bc3 Nbd7 12.Qb7 Nc5) 9.Ng5 Be2 10.Ke2 Re8 11.Rhe1 h6 12.Nh3 a5; B3) 8.0–0 e4 (8...a5 9.h3 Bf3 10.Bf3 e4 11.Be2 ab4 12.a3 Nfd7; 8...Nc6 9.h3 Bf3 10.Bf3 e4 11.Be2 d5 12.Bf6 dc4) 9.Nd4 Be2 10.Ne2 a5 11.Bf6 Bf6 12.Nbc3 ab4; C) 7...e4 8.Ng5 (8.Nd4 Be2 9.Ne2 0–0 10.0–0 Nc6 11.b5 Nb8 12.Nbc3 Nbd7) 8...Be2 9.Ke2 0–0 10.Nc3 Re8 11.h4 h6 12.Nh3 a5.

7.Nc3 0–0 8.h3 (8.0–0 a5 (8...Qe7 9.h3 Bf3 10.Bf3 e4 11.Be2 a5 12.a3 Nc6; 8...Bf5 9.Qb3 a5 10.a3 Nbd7 11.Nb5 a4 12.Qa2 Nb6) 9.b5 Nbd7 10.h3 Bf5 11.d4 ed4 12.Nd4 Ne4; 8.Qb3 e4 (8...a5 9.h3 ab4 10.hg4 bc3 11.Bc3 Nbd7 12.Qb7 Nc5) 9.Nd4 c5 10.Nc2 Be2 11.Ne2 Nc6 12.0–0 Rc8; 8.b5 e4 (8...Re8 9.0–0 Nbd7 10.Ng5 Be2 11.Qe2 Nc5 12.f3 Qd7; 8...Nbd7 9.h3 Bf5 10.g4 Be6 11.Qc2 a6 12.Ng5 ab5) 9.Nd4 Be2 10.Qe2 c5 11.bc6 Nc6 12.0–0 Rc8) 8...Be6 (8...Bf5 9.g4 Be6 10.Ng5 Bc8 11.h4 e4 12.h5 h6; 8...Bd7 9.Qb3 e4 10.Ng5 Qe7 11.f3 ef3 12.Bf3 Nc6) 9.0–0 h5 (9...Nbd7!?= 10.Ng5 Qe7 11.Qb3 c6 12.Ne6 Qe6; 9...Bf5 10.d3 a5 11.b5 Nbd7 12.e4 Be6) 10.d4+= (10.Ng5 Bf5 11.Qb3 Nc6 12.b5 Na5) 10...e4 11.Ng5 Nh7 (better is 11...Bf5!?+/– 12.f3 ef3) 12.Ne6+– fe6 13.Ne4 d5 (13...Qh4 14.Bd3+–) 14.Nc5 b6?? (14...Qe7+–) 15.Ne6 Qf6 (15...Qd6 16.Nf8 Bf8 17.cd5+–) 16.Nc7 Qc6 17.Na8 Qa8 18.Qb3 Nf6 19.cd5 Nbd7 20.Rfc1 Ne4 21.f3 Ng3 22.d6 Kh7 23.Bb5 Rf3 (23...Nf6 24.e4 a6 25.Bd3+–) 24.Rc7 Ne2 (24...Rf6 25.Rd7 Nf5 26.d5 Rd6 27.Bc6+–) 25.Be2 (25.Be2 Rg3 26.Bf1+–) 1–0. tracy – quattro, internet, 2011.

7.Nc3 a6 A) 8.0–0 0–0 (8...Nc6 9.b5 ab5 10.cb5 Ne7 11.d4 ed4 12.Nd4 Be2; 8...Bd7 9.b5 ab5 10.cb5 0–0 11.Qc2 Bc8 12.a4 Nbd7) 9.h3 Bd7 10.Qb3 Nc6 11.Bd3 Re8 12.Ng5 Nh5; B) 8.Qb3 Nc6 (8...0–0 9.h3 Bd7 10.0–0 Nc6 11.Ng5 Bf5 12.d3 Qe7; 8...Bf5 9.h3 Nc6 10.g4 Be6 11.Ng5 Bc8 12.Nf3 Be6) 9.h3 Bd7 10.0–0 0–0 11.Ng5 Bf5 12.d3 Qe7; C) 8.d4 ed4 (8...Nc6 9.de5 de5 10.b5 ab5 11.cb5 Nb4 12.Ne5 Bf5; 8...e4 9.Ng5 Be2 10.Qe2 0–0 11.0–0 Qe7 12.a3 Nbd7) 9.Nd4 Be2 10.Nce2 0–0 11.0–0 c5 12.bc5 dc5; D) 8.h3 Bd7 9.0–0 0–0 10.Qb3 Nc6 11.Ng5 Bf5 12.d3 Qe7.

7.Nc3 Na6 A) 8.Qb3 0–0 (8...Bf5 9.d4 0–0 10.b5 ed4 11.ed4 Nb8 12.0–0 Re8; 8...Qe7 9.h3 Bc8 10.d4 e4 11.Nd2 0–0 12.0–0 c6) 9.h3 Bf5 10.a3 Ne4 11.0–0 Nc3 12.Bc3 Qe7; B) 8.Qa4 Bd7 (8...c6 9.h3 Bd7 10.0–0 0–0 11.Ng5 h6 12.Nge4 Ne4; 8...Qd7 9.Qb3 0–0 10.h3 Bf5 11.g4 Be6 12.Ng5 d5) 9.Qb3 0–0 10.0–0 c6 11.a3 Qe7 12.Ng5 Nc7; C) 8.a3 0–0 (8...Bf5 9.0–0 0–0 10.d4 Re8 11.b5 ed4 12.ed4 Nb8; 8...Qe7 9.h3 Bd7 10.0–0 0–0 11.d4 e4 12.Nd2 c6) 9.h3 Bf5 10.Qb3 c6 11.g4 Be6 12.d4 Qc7; D) 8.h3 Bd7 (8...Bf5 9.g4 Be6 10.Qb3 0–0 11.Rc1 h6 12.g5 hg5; 8...Bc8 9.d4 ed4 10.ed4 c6 11.0–0 0–0 12.a3 Bf5) 9.Qb3 0–0 10.0–0 c6 11.Ng5 Qb6 12.Ba3 c5.

7.Nc3 Nc6 A) 8.h3 Bd7 (8...Bf5 9.g4 Bd7 10.b5 Ne7 11.d4 ed4 12.Nd4 0–0; 8...Be6 9.Ng5 Qd7 10.0–0 Nb4 11.Qb3 Nc6 12.Ne6 fe6) 9.b5 Ne7 10.0–0 0–0 11.Qb3 Nf5 12.Ng5 Qe7; B) 8.0–0 Nb4 (8...0–0 9.b5 Na5 10.Qa4 c6 11.h3 Bf5 12.d4 Qc7; 8...a6 9.b5 ab5 10.cb5 Ne7 11.h3 Bf5 12.d4 e4) 9.Qb3 a5 10.a3 Nc6 11.Qb7 Qb8 12.Qb5 Bd7; C) 8.Qb3 0–0 (8...a6 9.h3 Bf5 10.Rc1 h6 11.d4 ed4 12.ed4 0–0; 8...Bf5 9.b5 Na5 10.Qa4 c5 11.bc6 Nc6 12.c5 dc5) 9.h3 Bf5 10.g4 Be6 11.b5 Na5 12.Qa4 c6; D) 8.b5 Ne7 (8...Na5 9.h3 Bf3 10.gf3 0–0 11.Qa4 b6 12.Rg1 Nb7) 9.h3 Bd7 10.0–0 0–0 11.Qb3 Nf5 12.g4 e4.

7.Nc3 Bd7 A) 8.Ng5 0–0 (8...h6 9.Nge4 0–0 10.0–0 Ne4 11.Ne4 Be6 12.Qb3 f5; 8...Na6 9.Qb3 h6 10.Nf3 0–0 11.d3 c5 12.b5 Nc7) 9.b5 h6 10.Nge4 Ne4 11.Ne4 Be6 12.0–0 Nd7; B) 8.0–0 0–0 (8...Nc6 9.b5 Ne7 10.d4 ed4 11.Qd4 0–0 12.Ne4 Nh5; 8...a6 9.b5 ab5 10.cb5 0–0 11.Qc2 Re8 12.e4 Bc8) 9.Ng5 Nc6 10.b5 Ne7 11.Bf3 c6 12.Qb3 d5; C) 8.Qb3 Nc6 (8...0–0 9.0–0 a5 10.a3 Nc6 11.b5 Ne7 12.h3 Nf5; 8...a6 9.c5 0–0 10.cd6 cd6 11.0–0 Nc6 12.Ng5 Bf5) 9.b5 Ne7 10.0–0 0–0 11.d4 ed4 12.Nd4 c5; D) 8.b5 0–0 (8...Bf5 9.h3 0–0 10.g4 Be6 11.Qc2 a6 12.Ng5 Bc8; 8...a6 9.Qc2 0–0 10.0–0 ab5 11.cb5 Re8 12.e4 Bc8) 9.Qc2 Bf5 10.e4 Bg4 11.h3 Bf3 12.Bf3 Nbd7.

7.h3 A) 7...Bc8 A1) 8.0–0 e4 (8...0–0 9.Nc3 e4 10.Nd4 Nc6 11.Nc6 bc6 12.Rb1 Qe7; 8...Qe7 9.Nc3 0–0 10.d3 a5 11.a3 Na6 12.d4 ab4) 9.Nd4 0–0 10.Nc3 Nc6 11.Nc6 bc6 12.d4 ed3; A2) 8.d3 0–0 (8...a5 9.b5 0–0 10.Nc3 Nbd7 11.d4 ed4 12.Nd4 Nc5; 8...a6 9.Nc3 0–0 10.0–0 Nc6 11.Qb3 Bf5 12.Ng5 Qe7) 9.Nc3 a5 10.a3 Be6 11.Ng5 Bf5 12.0–0 ab4; A3) 8.b5 e4 (8...0–0 9.0–0 e4 10.Nd4 c5 11.Nb3 Nbd7 12.Qc2 Re8; 8...Nbd7 9.Nc3 0–0 10.d4 ed4 11.Nd4 Nc5 12.0–0 Re8) 9.Nd4 c5 10.Nb3 0–0 11.Nc3 Nbd7 12.0–0 Ne5; A4) 8.Nc3 0–0 (8...Qe7 9.Qa4 Bd7 10.b5 0–0 11.0–0 Na6 12.d4 e4; 8...Na6 9.d4 ed4 10.ed4 c6 11.0–0 0–0 12.a3 Bf5) 9.0–0 e4 10.Nd4 Nc6 11.Nc6 bc6 12.Qb3 Qe7; B) 7...Bf5 B1) 8.0–0 0–0 (8...Nbd7 9.d4 a5 10.b5 0–0 11.Nbd2 ed4 12.Nd4 Ne4; 8...a5 9.b5 0–0 10.Nc3 Nbd7 11.d4 ed4 12.Nd4 Ne4) 9.Nc3 Nc6 10.Nh4 Bd7 11.b5 Ne7 12.Qc2 Nf5; B2) 8.a3 0–0 (8...Nc6 9.g4 Be6 10.Nc3 0–0 11.b5 Na5 12.Qa4 c6 ; 8...Bd7 9.Nc3 0–0 10.Qc2 Re8 11.d3 Nc6 12.0–0 Ne7) 9.Nc3 Nc6 10.b5 Ne7 11.g4 Be6 12.d4 ed4; B3) 8.g4 Be6 (8...Bd7 9.Nc3 0–0 10.g5 Nh5 11.b5 Be6 12.Ne4 Nd7 ) 9.Nc3 0–0 10.Ng5 Bc8 11.h4 Nc6 12.b5 Na5; B4) 8.Nc3 0–0 (8...Nc6 9.g4 Bd7 10.b5 Ne7 11.d4 ed4 12.Nd4 0–0 ; 8...h6 9.g4 Bd7 10.b5 0–0 11.Qc2 a6 12.a4 ab5) 9.Qb3 Nc6 10.g4 Be6 11.Ng5 Bd7 12.b5 Na5; C) 7...Be6 C1) 8.0–0 0–0 (8...a5 9.b5 0–0 10.Ng5 Qe7 11.Nc3 Nbd7 12.Ne6 Qe6; 8...Nbd7 9.Nc3 a5 10.b5 0–0 11.Ng5 Qe7 12.Ne6 Qe6) 9.Nc3 a5 10.b5 Nbd7 11.Ng5 Qe7 12.Ne6 Qe6; C2) 8.Ng5 Bf5 (8...0–0 9.Ne6 fe6 10.0–0 a5 11.b5 Nbd7 12.Qc2 e4; 8...a5 9.Ne6 fe6 10.b5 0–0 11.Nc3 Nbd7 12.Qc2 e4) 9.Nc3 h6 10.g4 hg5 11.gf5 gf5 12.Rg1 Bh6; C3) 8.Qb3 a5 (8...0–0 9.Ng5 a5 10.Ne6 fe6 11.ba5 Nbd7 12.0–0 Ne4; 8...Nc6 9.b5 Na5 10.Qa4 c5 11.Ng5 Bf5 12.Bc3 b6) 9.Ng5 ab4 10.Ne6 fe6 11.Qb4 0–0 12.Nc3 Na6; C4) 8.Nc3 0–0 (8...a5 9.b5 Nbd7 10.Ng5 Qe7 11.0–0 0–0 12.Ne6 Qe6; 8...Nc6 9.b5 Ne7 10.Ng5 Qd7 11.Qb3 0–0 12.Bf3 Rab8) 9.Ng5 Bf5 10.b5 h6 11.g4 Bc8 12.Nge4 Ne4; D) 7...Bd7 D1) 8.Qb3 0–0 (8...e4 9.Nd4 Nc6 10.0–0 0–0 11.Nc6 bc6 12.Nc3 Re8; 8...Qe7 9.Nc3 0–0 10.Nd5 Nd5 11.cd5 c6 12.dc6 Nc6) 9.Nc3 e4 10.Ng5 Qe7 11.f3 ef3 12.Bf3 Nc6; D2) 8.b5 0–0 (8...e4 9.Nd4 a6 10.Nc3 ab5 11.cb5 0–0 12.d3 c5; 8...a6 9.Nc3 ab5 10.cb5 0–0 11.d4 ed4 12.Nd4 c5) 9.Nc3 e4 10.Nd4 c5 11.Nb3 Qe7 12.0–0 a6; D3) 8.0–0 e4 (8...0–0 9.Nc3 e4 10.Nd4 Nc6 11.Nc6 Bc6 12.Qb3 Qe7; 8...a6 9.Nc3 0–0 10.Qb3 Nc6 11.Ng5 Bf5 12.Bf3 Re8) 9.Nd4 Nc6 10.Qb3 0–0 11.Nc6 bc6 12.Nc3 Re8; D4) 8.Nc3 0–0 (8...a6 9.Qb3 Nc6 10.0–0 0–0 11.Ng5 Bf5 12.Bf3 Re8; 8...Nc6 9.b5 Ne7 10.0–0 0–0 11.d4 ed4 12.Nd4 Nf5) 9.b5 e4 10.Nd4 c5 11.Nb3 a6 12.a4 Qe7.

7.0–0 0–0

8.b5 e4 (8...a6 9.Nc3 ab5 10.cb5 Nbd7 11.a4 e4 12.Nd4 Be2; 8...Nbd7 9.Nc3 Nc5 10.d4 ed4 11.Nd4 Bd7 12.Nb3 a6) 9.Nd4 Be2 10.Qe2 c5 11.bc6 Nc6 12.Nc3 Rc8.

8.Nc3 a5 (8...Qe7 9.h3 Bf3 10.Bf3 e4 11.Be2 a6 12.a3 Nc6; 8...Bf5 9.d3 a5 10.b5 Nbd7 11.d4 c5 12.Qd2 cd4) 9.b5 Nbd7 10.h3 Bf5 11.d4 ed4 12.Nd4 Ne4.

8.d3 Nbd7 9.Nc3 Re8 (9...a5 10.a3=) 10.Qc2 (10.h3 Bf5+=) 10...a6 (10...a5 11.a3=) 11.a4 (11.h3 Bf5+=) 11...Bf5 (11...a5 12.b5=) 12.Nd2 (12.e4 Bg4+=) 12...Rc8 (12...a5 13.b5=) 13.Bf3 (13.a5 Qe7=) 13...c6= 14.b5 (14.Nde4 Ne4 15.Ne4 Qe7=) 14...Bg4 (14...Nc5 15.Nde4+=) 15.Qd1 (better is 15.Bg4!? Ng4 16.Nde4=) 15...Bf3+= 16.Qf3 (16.Nf3 Nc5+=) 16...Nc5 17.d4 (17.Qe2 d5 18.Rfd1+=) 17...e4 (better is 17...Nd3!? 18.bc6 Nb2 (18...Rc6?! 19.Ba3=) 19.cb7 Rb8–+) 18.Qe2= Ncd7 19.f3 (19.Ra3 Rb8=) 19...d5 (19...ef3 20.Qf3 Qe7 21.Rae1+=) 20.fe4= Ne4 21.Nde4 de4 22.ba6 (22.Ra3 f5=) 22...ba6= 23.c5 Ra8 (23...Rb8 24.Rab1=) 24.Qc4 Attacking the backward pawn on f7 (24.Rab1 a5=) 24...Nf6 25.Rf4?? (better is 25.Bc1=) 25...Bh6–+ 26.Raf1 (26.Rf6 Qf6 27.Bc1 Reb8–+) 26...Bf4 27.Rf4 Nd5 28.Nd5 Qd5 29.Qd5 cd5 30.Rf6 Re6 31.Re6? (31.Rf1–+) 31...fe6 32.Bc3 Rb8 33.Ba5 (33.Kf2 Kf7–+) 33...Kf7 (33...Rb2 34.Kf1–+) 34.Bb6 Ke8 35.Kf2 Kd7 36.Kg3 (36.Ke2 g5–+) 36...Kc6 37.a5 (37.h3 Rf8–+) 37...Rf8 38.h4 Rf5 39.Bd8 h5 40.Kh3 (40.Be7 e5 41.de5 Re5–+) 40...Kd7 41.Bg5 Rf1 42.Kg3 Ra1 43.Kf4 Rf1 44.Kg3 Rf5 45.Bf4?? Kc6–+ 46.Kh3 Rf7 47.g4 hg4 48.Kg4 Rf5 49.Be5 Kd7 50.Bf4 ½–½. Nikolic,Jovane (1705) – Von Erlea,Simon P J E (1750), Championship da Primeira Categoria do E, 2014.

8.Ng5 Be2 (8...Bf5 9.Nc3 h6 10.Nf3 a6 11.Qb3 Nc6 12.h3 Re8) 9.Qe2 h6 10.Nh3 Nc6 11.b5 Ne7 12.Nc3 a6.

8.h3 Bf3 (8...Bd7 9.Nc3 e4 10.Nd4 Nc6 11.Nc6 Bc6 12.d4 ed3; 8...Bf5 9.Nc3 Nc6 10.Nh4 Bd7 11.b5 Ne7 12.Qc2 a6) 9.Bf3 e4 10.Be2 Nc6 11.b5 Ne5 12.Nc3 Re8.

7.0–0 Nbd7

8.Nc3 a5 (8...0–0 9.h3 Bf5 10.d4 a5 11.b5 ed4 12.Nd4 Ne4) 9.a3 0–0 10.Qc2 Nb6 11.h3 Bf3 12.Bf3 Nc4.

8.Ng5 Be2 (8...Bf5 9.Nc3 h6 10.Nf3 a5 11.b5 0–0 12.d4 c5) 9.Qe2 a5 10.b5 h6 11.Nf3 a4 12.e4 0–0.

8.h3 Be6 9.Nc3 a5 10.b5 0–0 11.Ng5 Qe7 12.Ne6 Qe6.

8.h3 Bf3 9.Bf3+/– (worse is 9.gf3 a5+=) 9...c6 10.d3 Qc7 11.Nd2 d5 (11...0–0 12.a3+=) 12.Qb3 e4 (12...0–0 13.cd5 cd5 14.Bd5 Nd5 15.Qd5+/–) 13.de4 de4 14.Ne4 0–0 15.Rfd1 White plans c5 15...Ne4 16.Bg7 Kg7 17.Be4 Rad8 18.c5 Qe5 19.Rd4 (better is 19.Bf3!?+/–) 19...Nc5= 20.bc5 Rd4 21.ed4 Qe4 22.Qb2 Rd8 (better is 22...Re8!?=) 23.d5+/– Kf8? (23...Kh6 24.d6 b6+/–) 24.dc6?? (better is 24.d6 Kg8 25.Qb7+–) 24...Qc6?? (better is 24...bc6 25.Qh8 Ke7 26.Qh7 Rd5+=) 25.Qh8+– Ke7 26.Re1 Kd7 27.Rd1 Kc7 28.Qd8 1–0. GuestWHFN – daligo, freechess.org, 2017.

8.h3 Bf5 9.Nc3 0–0 10.d4 a5 11.b5 ed4 12.Nd4 Ne4.

5.Nf3 h6

6.Nc3 c6 7.Be2 Ne7 8.0–0 0–0 9.Re1 (9.Qa4 Bf5+=) 9...d5 (9...a5 10.a3+=) 10.Rc1 d4 11.ed4 ed4 12.Na4 d3 (12...Re8!?+/–) 13.Bd3! Qd3 14.Re7 Bg4 (14...Na6 15.Re3 Qd6 16.b5 Bb2 17.Nb2+/–) 15.Rb7 (15.Bg7 Kg7 16.Rb7 Na6+–) 15...Bf3 (15...Bb2 16.Nb2 Qd8 17.b5+–) 16.Qf3 Qd2? (better is 16...Qf3 17.gf3 Bb2 18.Nb2 Na6+–) 17.Rd1 Qc2 (17...Qg5+–) 18.Bg7 Kg7 19.Nc5 Qc4 (19...Kg8 20.Ne6!! Na6 21.Nf8 Rf8 22.Qb3 Qb3 23.ab3+–) 20.Re1 Qa2 (20...Kg8 21.Qf6 Nd7 22.Nd7 Rfe8+–) 21.Ne6 Kg8 (21...Qe6 22.Re6 Na6 23.Qf6 Kg8 24.Qa1 Kh7 25.Rf6 g5 26.Qb1 Kg7 27.Rbf7 Rf7 28.Qg6 Kh8 29.Rf7 Nb4 30.Qg7) 22.Qf6 Qe6 23.Re6 fe6 (23...Nd7 24.Rd7 a5 25.Qf4 Rae8 26.Re8 Kg7 27.Rf8 Kf8 28.Qf7) 24.Qg7 1–0. pierred – anony, internet, 2014.

6.Be2 Ne7 7.h3 (7.Nc3 0–0+=) 7...a6 8.a4 b6 9.b5 a5 10.d3 Be6 11.Nbd2 Nd7 12.d4 Nf5?? (better is 12...ed4 13.0–0 0–0 14.Nd4 Nc5+=) 13.d5+– Ne3?? (13...e4 14.Bg7 ef3 15.Bh8 Ne3 16.fe3 fg2+–) 14.fe3 Bf5 15.g4 Bg4 16.hg4 Nc5 1–0. GuestDZRZ – GuestZDTK, freechess.org, 2017.

6.Be2 Nf6 7.Nc3=.

5.Nf3 Nh6

6.a3 0–0 7.d3 (7.d4 a5 (7...Nf5) 8.Nbd2 (8.de5 de5 9.Qd8 Rd8 10.Nc3 Bg4 11.b5 Bf3=; 8.b5 Re8 9.de5 Nd7 10.Be2 Ng4 11.0–0 Nde5=) 8...Re8 9.Bd3 ed4 10.Bd4 Bd4 11.Nd4 ab4=) 7...Nc6 (7...Nf5 8.Nc3 a5 9.b5 Be6 10.Be2 Nd7 11.0–0 c6=) 8.Be2 (8.Nc3 f5 9.Be2 f4 10.b5 Na5 11.ef4 Rf4=) 8...f5 (8...a6 9.0–0 Be6 10.d4 ed4 11.Nd4 Ne5+=) 9.Nc3 (9.0–0 Be6 10.Nc3 g5 11.d4 g4+=) 9...Nf7 (9...f4 10.ef4 Rf4 11.0–0 a6=) 10.b5 (10.0–0 e4 11.de4 fe4+=) 10...Ne7 11.d4 (11.0–0 a6=) 11...Kh8 (11...a6=) 12.0–0 g5 13.de5 de5 14.Qc2 c6 15.Rfd1 Qc7 16.a4 Be6 17.a5 Rfd8 18.c5 (18.a6 Rd1 19.Rd1 ba6 20.ba6 g4+=) 18...cb5 (18...Rd1 19.Qd1 cb5 20.Nb5 Qb8+=) 19.Nb5+= (worse is 19.Bb5 Qc5 20.a6 Rd1 21.Qd1 Rb8+=) 19...Rd1 20.Bd1 Qb8 21.Be2 a6 (21...Qc8 22.Bd3 g4 23.Nh4+=) 22.Nd6 (22.Bc4 Nd5 23.Rd1 ab5 24.Bd5 Qc8+/–) 22...h6 (22...Nd6 23.cd6 Qd6 24.Ng5+=) 23.Rd1+/– Qc7 24.Nf7 Bf7 25.Rd6 e4 26.Bg7 Kg7 27.Qc3 Kh7 28.Qf6 Bg6 (28...Ng6 29.Nd4 Be8 30.Nf5 Qf7 31.Qf7 Bf7+–) 29.Ne5 Rg8 30.Rd7 (30.Rd7 Qc5 31.Re7 Qe7 32.Qe7 Rg7 33.Qf6+–) 1–0. Helgeson,Wally – Beaulieu,Jean Marie, corr, 1977.

6.a3 a5 7.d4 ed4 8.b5 c5 9.ed4 0–0 10.Be2 d5 11.Nc3 dc4 +=.

6.b5 0–0 7.Be2 Bg4 8.0–0 e4 9.Ne1?? (better is 9.Bg7 Kg7 10.Nd4 Be2 11.Qe2+=) 9...Bb2 10.Bg4 Ba1 11.Nc3 Bc3 12.dc3 Ng4 13.Qg4 Qe7 14.h4 (14.Nc2 a6–+) 14...f5 15.Qg3 Kh8 16.Nc2 c5 (16...Qf7 17.c5 dc5 18.Qe5 Kg8 19.Qc5–+) 17.bc6 (17.Rd1 Rf6–+) 17...Nc6 18.Nd4 Nd4 19.cd4 Qe6 (19...Rac8 20.Qf4–+) 20.Qf4 Rad8 (20...Qc4 21.Qd6 Qa2 22.Qe5 Kg8 23.h5–+) 21.d5 Qe5 22.Qg5 (22.Qe5 de5 23.Rb1 Rf7–+) 22...Qc3 23.g3 (23.h5 gh5 24.Rb1 Rd7–+ (24...Qc4?? 25.Rb7 Qc1 26.Kh2+–)) 23...Qc4 0–1. elektrooon – kryzysos, internet, 2013.

6.d4 Bg4 7.Be2 Bf3 (7...e4 8.Nfd2 Be2 9.Qe2+=) 8.Bf3 (8.gf3?! Qg5=) 8...c6 9.d5 0–0 10.Nc3 Qe7 11.e4 f5 12.0–0 f4 13.Qb3 Nd7 14.dc6 bc6 15.c5 Kh8 16.cd6 Qd6 17.Rad1 Qe7 18.Ba3 Rab8 19.b5 Nc5? (better is 19...c5+/–) 20.Qb4+– Qb7 21.Qc5 Rf7 (21...cb5 22.Qb4 Rfc8+–) 22.bc6 Qb6 (22...Qa8 23.Rc1+–) 23.Rb1 Qc5 (23...Qd8+–) 24.Rb8 Bf8 25.Bc5 (25.Bc5 Ng8 26.Bf8+–) 1–0. Janek – Gustave, internet, 2016.

6.Be2 0–0

7.d4 Nd7 8.Nc3 a5 A) 9.a3 A1) 9...Nf5 10.0–0 (10.b5 ed4 11.ed4 Nb6 12.0–0 Nh4 13.Ne1 Re8=) 10...Re8 11.d5 Qe7 12.Qc2 Nf6 13.Ne4 Ne4+=; A2) 9...Re8 10.0–0 (10.d5 e4 11.Nd4 Nb6 12.h4 Nf5 13.Nf5 Bf5=) 10...Nf5 11.d5 Nf6 12.e4 Nd4 13.Nd4 ed4=; B) 9.b5 ed4 10.Nd4 (10.ed4 Nb6 11.0–0 Re8 12.Re1 Bg4 13.Qd3 c6=) 10...Ne5 11.0–0 Be6 12.Nd5 c6 13.Ne6 fe6=.

7.d4 Nd7 8.Nc3 Re8 A) 9.a3 A1) 9...a5 10.0–0 (10.d5 e4 11.Nd4 Nb6 12.h4 Nf5 13.Nf5 Bf5=) 10...ed4 11.Nd4 Ne5 12.Qd2 Nhg4 13.h3 Nf6+=; A2) 9...Nf5 10.0–0 ed4 11.ed4 c6 12.Re1 Nh4 13.Na4 Nf3=; B) 9.d5 e4 (9...Nf5) 10.Nd4 Nb6 11.Qc2 Bd4 12.ed4 e3 13.0–0 Ng4=; C) 9.0–0 Nf5 10.a3 (10.de5 Ne5 11.Ne5 Be5 12.Na4 Qe7 13.Be5 de5=; 10.Qd2 e4 11.Ne1 a5 12.b5 Nb6 13.Rc1 Qh4=) 10...ed4 11.ed4 c5 12.dc5 dc5 13.Re1 a5=.

7.d4 Nd7 8.Nc3 f5 9.Qb3 (9.0–0 A) 9...a5 10.a3 (10.b5 Nf7 11.Rb1 e4 12.Nd2 Nb6 13.Qc2 Be6+=) 10...Nf7 11.Qc2 f4 12.b5 fe3 13.fe3 Bh6+=; B) 9...Nf7 10.Qc2 (10.a3 c5 11.de5 de5 12.Nd5 a5 13.bc5 Nc5+=) 10...Nf6 11.de5 de5 12.a3 Be6 13.e4 fe4+=; 9.a3 Nf7 (9...a5; 9...e4) 10.0–0 e4 11.Nd2 c6 12.Rb1 Qg5 13.Qb3 a6+=) 9...c6 (9...a5 10.c5 (10.ba5 Nf7 11.0–0 Ra5 12.de5 Nde5 13.Ne5 Ne5=; 10.b5 ed4 11.ed4 g5 12.h3 g4 13.hg4 fg4=) 10...Nf7 11.cd6 cd6 12.ba5 ed4 13.Nd4 Nc5+=) 10.de5 (10.0–0 e4 11.Ne1 Qg5 12.Nc2 Nf7 13.c5 dc5+=; 10.c5 Nf7 11.cd6 e4 12.Nd2 Nb6 13.b5 Re8+=) 10...de5 (10...Ne5 11.0–0 Nf3 12.Bf3 Be6 13.Na4 Nf7=) 11.c5 (11.0–0 Nf7 12.Rfd1 a5 13.b5 Qf6+=) 11...Kh8 (11...Nf7 12.Rd1 Qe7 13.e4 a5=) 12.h4 (12.0–0 b6 13.cb6 ab6+=) 12...Nf7 (12...b6 13.Ng5 Qe7=) 13.Bc4 (13.Rd1!?+= a5+=; 13.h5 g5+=) 13...e4= 14.Nd4 Nde5 15.0–0–0 (better is 15.Be2!?=) 15...Nc4–/+ 16.Qc4 Ne5 17.Qe2 Qe7 18.h5 g5 19.h6 Bf6 20.f3 a5 21.a3 (21.b5 Qc5 22.fe4 fe4–/+) 21...ab4–+ 22.ab4 b6 (22...Nd3!? 23.Rd3 ed3 24.Qd3 Rd8–+) 23.fe4–/+ Ba6 24.b5 Bb5 25.Ndb5 cb5 26.Nd5 Qc5 27.Kb1 Nc4 (27...Qc6!?+=) 28.Nf6= (worse is 28.Bf6 Rf6 29.Qd3 fe4–+) 28...Na3 29.Ba3 Qa3 30.Qb2 Qb2 31.Kb2 Rf6 32.ef5 Rf5 33.Rhf1 Rf1 34.Rf1 Re8 35.g4 ½–½. Starck,Bodo – Liebert,Heinz, Weimar DDR–ch, 1968.

7.d4 Nd7 8.Nc3 Nf5 A) 9.a3 ed4 (9...Re8 10.0–0 ed4 11.ed4 c5 12.dc5 dc5 13.Re1 a5+=; 9...a5 10.0–0 Re8 11.Re1 c5 12.bc5 ed4 13.Nd4 Nd4+=) 10.ed4 (10.Nd4 Nd4 11.ed4 Re8 12.0–0 c6 13.Qd2 Qh4=) 10...Re8 11.0–0 c6 12.Re1 Nh4 13.Na4 Nf3=; B) 9.0–0 Re8 10.a3 (10.de5 Ne5 11.Qc2 Nf3 12.Bf3 Nh4 13.Be4 Qg5=; 10.Qd2 a5 11.a3 ed4 12.ed4 Nb6 13.Rfe1 ab4=) 10...ed4 11.ed4 c5 12.dc5 dc5 13.Re1 a5+=.

7.d4 e4 8.Nfd2 f5 9.Nc3 Nf7 10.g4 c5 11.Nd5 cd4 12.Bd4 Ne5 13.gf5 Bf5 14.h4 Nbc6 15.Bc3 a5 16.a3 ab4 17.ab4 Ra1 18.Qa1 Qd7 19.Rg1 Be6 20.Ne4 Bd5 21.cd5 Nb4 22.Qb1 Nbd3? Exerts pressure on the backward pawn (better is 22...Nd5 23.Qb3 Qe6=) 23.Bd3+– Nf3 24.Ke2 Ng1 25.Qg1 Bc3 26.Nc3 Qc7 27.Ne4 Qa5 28.h5 Qd5 29.hg6 Qh5 30.Ke1 hg6 31.Qg3 (31.Nd6?! Qa5 32.Kf1 Qa1 33.Kg2 Qf6=) 31...Kg7 32.Qd6 Ra8 33.Qf6 Kh6 34.Ng3 Qa5 35.Ke2 Qg5 36.Qf3 (36.Qf3 Ra2 37.Kf1+–) 1–0. Krutko,Anatoly (2355) – Shestakov,Dmitry (2260), Nizhniy Tagil–ch, 2006.

7.h4 a5 8.b5 Bg4 9.d4 Nd7 10.de5 de5 11.e4 =.

7.h4 Nc6 8.b5 Ne7 9.h5 b6 10.hg6 fg6 11.Ng5 Nef5 (11...c6!?=) 12.Bf3+/– Rb8 13.Bd5 Kh8 14.Nf3 Bb7 15.Bb7 Rb7 16.d3 Ng4 17.Nbd2 Nge3 18.fe3 Ne3 19.Qe2 Nc2 20.Kd1 Na1 21.Ba1 (better is 21.Qe4 Qc8 22.Qg6+– (22.Ba1?! Rf5+/–)) 21...a6? (better is 21...Rb8+=) 22.Qe4+– (22.ba6 Ra7+=) 22...Ra7 23.Qg6 h6 24.Ng5 Qg5 25.Qg5 Kg8 (25...Kh7 26.d4! ab5 27.cb5 Ra2 28.Bc3+–) 26.Rh6 1–0. Fournier,Frederic (2210) – thalythal (1955), Active, 2002.

7.h4 Bg4 8.g3 (8.d4 Nd7 (8...a5 9.b5 Nd7= 10.de5 de5 11.e4=) 9.de5 de5 10.Nc3 a5 11.a3=) 8...f6 (8...e4 9.Bg7 ef3 10.Bh6 (< 10.Bf3 Bf3 11.Qf3 Kg7–/+) 10...fe2 11.Qb3= (11.Qc1=)) 9.Qb3 (9.d4 Nc6 10.b5 Ne7 11.Nfd2=) 9...Qe7 (9...Nf7 10.d4 e4 11.Nfd2=) 10.Nc3 Nd7 11.c5 Be6 12.Bc4 Bc4 13.Qc4 Kh8 14.Ne4 f5=+ 15.Neg5 e4 16.cd6 cd6 17.Qe6 Qe6 18.Bg7+/– Kg7 19.Ne6 Kf6 20.Nf8 Rf8 21.Ng5+– Rh8 22.Rc1 Nf7 23.Rc7 Nde5 24.Nf7 Nf7 25.Rb7 Ra8 26.Ke2 h5 27.Rc1 Nd8 28.Rbc7 Ne6 29.Rc8 Rc8 30.Rc8 d5 31.Ra8 d4 32.Ra7 d3 33.Kd1 g5 34.b5 gh4 35.gh4 1–0. Nobile,Salvatore – Stein, corr Italy, 1970.

5.f4 Nd7

6.Nf3 Ne7 7.d3 (7.Be2!?= 0–0 8.fe5 de5 9.0–0 Nf5 10.e4 Nd4=) 7...0–0+= 8.Na3 (8.fe5 Re8 9.Qd2 Ne5 10.Ne5 de5+=) 8...c5 (8...a5 9.b5 Nf5 10.Nc2 Re8+=) 9.b5 (9.fe5 cb4 10.Nc2 Ne5 11.Ne5 de5 12.Nb4 Qb6+=; 9.Nc2 cb4 10.fe5 Ne5+=) 9...ef4–/+ 10.Bg7 Kg7 11.Nc2 fe3 12.Ne3 Re8 13.Kf2 Nf6 14.h3 Nf5 15.Nf5 Bf5 16.g4 Bc8 17.Bg2 d5 18.Re1 dc4 19.dc4 Qd1 (19...Ne4 20.Kg1 f5 21.Qc2–/+) 20.Rad1+= Re1 21.Re1 (21.Ne1 Be6 22.g5 Nh5 23.Bb7 Rf8=) 21...Be6 22.Ne5 Rb8 23.Rd1 h6 24.Kg3 Ne8 25.Bd5 (25.a4 h5=) 25...Rd8–/+ 26.Nd3 b6 27.Be6 fe6 28.Nb2 Rd1 29.Nd1 Nd6 30.Ne3? (30.Nb2 Kf6 31.Kf4 e5 32.Kg3 h5–/+) 30...Ne4 (better is 30...Kf6–+) 31.Kf4–/+ Nc3 32.Ke5 Kf7 33.Kd6 Na2 34.Kc7 (34.Nd1 Nb4–/+) 34...Ke7 (34...Nc3!? 35.Kb7–+) 35.h4 Nc3 36.Kc6? (36.g5 h5–/+) 36...Ne4 (better is 36...Kf6!? 37.Kd7–+) 37.Kc7 Nd2 (37...Kf6 38.Kb8 Nc3 39.Ka7–+) 38.h5 g5 39.Kb7 Kd6 40.Ka7 Ke5?? (better is 40...Kc7–/+) 41.Kb6+/– Kd4 42.Nf5?? (better is 42.Ka6 Ne4 43.b6+/–) 42...ef5–+ 43.gf5 Nc4 (43...Kc4? 44.f6 Nf3 45.Ka6+–) 44.Kc6 Ke5 (44...g4 45.f6 Ne5 46.Kd6–+) 45.Kc5 (45.f6 Kf6 46.Kc5 Nb2–+) 45...Na5 (45...Kf5 46.Kc4 Ke6 47.b6–/+) 46.b6 g4 (46...g4 47.f6 Kf6–+; 46...Kf5?! 47.Kb5 Nb7 48.Kc6–/+) 0–1. Suess,Stefan – Loots,Friedhelm, corr, 1985.

6.Nf3 Qe7

7.Qa4 c6 8.Be2 Ngf6 9.fe5 de5 10.0–0 a5 =.

7.Nc3 c6 8.Be2 (8.Ne4 Ngf6 9.Nd6 Qd6 10.fe5 Qb4 11.ef6 Bf6 12.Bf6 Nf6+=) 8...Nh6 (8...e4 9.Nd4=) 9.0–0 0–0 10.fe5 de5 11.b5 e4 12.Nd4 c5 (12...cb5 13.cb5 Bd4 14.ed4=) 13.Nb3 (13.Nd5 Qd6 14.Ba3 Be5=) 13...Nf6 (better is 13...Qe6=) 14.Nc5?? (better is 14.d4 ed3 15.Qd3=) 14...Qc5–+ 15.Rf6 Bf5?? (15...Bf6 16.Ne4 A double attack) 16.Nd5 Be6 17.Bd4 Qa3 18.Nc7 (18.Qb3 Qb3 19.Ne7 Kh8 20.ab3 Rfe8+=) 18...Nf5 (better is 18...Bf6!? 19.Bf6 Rac8 20.Ne6 fe6=) 19.Rf5+/– Bf5 20.Bg7 Kg7 21.Na8 Ra8 22.Qb3 (22.Bg4 Bg4 23.Qg4 Qd3+=) 22...Qc5 (22...Qb3 23.ab3 Rd8 24.Kf2 Rd2 25.Ke1+= (worse is 25.Ra7 Bg4–/+)) 23.Rc1 (23.Qb2 f6+/–) 23...Rd8 24.Rc2 (24.Qb2 f6+/–) 24...b6 25.a3 g5 (25...Be6 26.Qb2 f6 27.Rc3+=) 26.Qb4 (26.Qc3 f6+/–) 26...Rc8 (26...Be6 27.Qc3 f6 28.Rc1+/–) 27.Qc3 f6 28.a4 Rd8 29.a5 Rd7 30.Bh5 (30.Ra2 Qd6+/–) 30...Rd3 31.Qa1 Ra3 32.Ra2 Ra2 33.Qa2 Be6 (33...ba5 34.Qa5 Qc4 35.b6 (35.Qa7?! Kh6 36.Be8 Qc1 37.Kf2 Qd2 38.Kf1 Qd1 39.Kf2 Qd2 40.Kf1 Qd1 41.Kf2 Qd2=) 35...Qc1 36.Kf2 ab6 37.Qf5 Qd2 38.Be2+–) 34.ab6+/– ab6 35.Be2 (35.Qa7 Kh6 36.Be2 Bc4 37.Bc4 Qc4 38.Qb6 Qc1 39.Kf2 Qd2 40.Kf1 Qd1 41.Kf2 Qd2 42.Kf1 Qd1 43.Kf2 Qd2=) 35...Bf7 (35...Qb5 36.Qa7 Qd7 37.Qb6+=) 36.Qc2 Bg6 37.Qc3 Qc7 38.Qd4 Kf7 (38...Bf5 39.Qd5 Qd7 40.d4 ed3 41.Qd7 Bd7 42.Bd3+/–) 39.Bd1 f5 40.Bb3 White gets deadly initiative 40...Ke7 (40...Ke8 41.Qh8 Kd7 42.Qg7 Kc8 43.Qf6+–) 41.Qg7 Kd8 42.Qf6 Kc8 43.Qg5 Qd6 44.h4 (44.g4 h6 45.Qh6 fg4+–) 44...Qd3 (44...Qd2 45.h5 f4 46.Qf4 Bh5 47.Qe4 Kb8+–) 45.h5+– Qb3 46.hg6 hg6 47.Qg6 Qc4 48.Qf5 Kc7 49.Qe5 Kc8 (better is 49...Kb7+–) 50.Qc3 (50.Qc3 Qc3 51.dc3+–) 1–0. Kreuzer,Uwe – Dressler,Jan Peter, Landesliga, 1989.

7.Nc3 Ngf6 8.Be2 e4 9.Nd4 0–0 10.b5 Nc5 =.

7.Be2 f6 8.fe5 fe5 9.0–0 e4 10.Bg7 Qg7 11.Nd4 c5 12.bc5 dc5 13.Nc2 Ngf6 14.Nc3 0–0 15.Rb1 b6 16.Nb5 Ne5 17.Nca3 Nd3 18.Bd3 ed3 19.h3 Bd7 20.Qb3 Ne4 21.Qd3 Rf1 22.Rf1 Qe7 23.Qd5 Qe6 24.Qa8 Kg7 25.Qf8 1–0. lican – zbiniu4263, internet, 2013.

7.Be2 Ngf6 8.0–0 b6 9.fe5 de5 10.d4 (10.b5 e4 11.Ba3 Nc5=) 10...0–0 (10...Ng4!? 11.Bc1 ed4 12.ed4 c5+=) 11.de5= Ng4 12.Qd2 Nge5 13.Ne5 Ne5 14.a3 Bb7 (14...Rd8 15.Qc1+=) 15.Nc3 Rad8 16.Qc2 (16.Nd5 Qg5 17.Rf4 c6–+) 16...f5 (16...Nd3 17.Bd3 Qe3 18.Rf2 Rd3 19.Nd5 Bd5 20.Bg7 Kg7 21.cd5 Rd5 22.Qc7–/+) 17.Rad1 Rd1 18.Rd1 Rd8 (18...Ng4!? 19.Bg4 Qe3 20.Kh1 Re8–/+) 19.Rd8 Qd8 20.Qd1 Qd1 21.Nd1 a5 22.Be5 Be5 23.Bf3 Bf3 24.gf3 ab4 25.ab4 Bd6 26.b5 Bc5 27.Kf2 f4 28.Ke2 fe3 29.Ne3 Kf7 30.Nd5 Bd6 31.h3 Ke6 32.Ke3 Kf5 33.Nc3 (33.f4!?+=) 33...Bc5+= 34.Ke2 Bd4 35.Nd5 Be5 36.Ke3 Bd6 37.f4 g5 38.fg5 Kg5 39.Kf3 Kh4 40.Kg2 ½–½. Fournier,Frederic (1770) – linuscata (1685), rated blitz game (2/12), 2002.

7.Be2 Ngf6 8.0–0 e4 9.Nd4 0–0 10.b5 Nc5 =.

5.f4 Ne7

6.Nf3 Nbc6 7.b5 Nb4 8.a3+– (8.fe5?! Bf5 9.d3 de5+=).

6.Nf3 Nd7 7.Be2 (7.e4 0–0=) 7...0–0 (7...Nc6 8.b5 Ne7 9.0–0+=) 8.fe5 (8.0–0 e4 9.Bg7 Kg7=) 8...de5 (8...Ne5 9.d4 Nf3 10.gf3+=) 9.Qc2 (9.0–0 a5=) 9...c6 (9...a5!?+=) 10.0–0= Qc7 (10...a5 11.ba5 Qa5 12.c5=) 11.Nc3 f5 12.d4 ed4 13.ed4 Nf6 14.Ne5 (14.Rae1 Be6+/–) 14...Be6 (14...Qd6 15.Rf4=) 15.Rad1+= Rad8 16.Rfe1 (16.a4 Ng4 17.Bg4 fg4+=) 16...Bf7 (16...Qb6!? 17.Bf3 Rd4 18.Rd4 Qd4 19.Kh1 Re8=) 17.Bf3 (17.Nf7 Rf7 18.Qa4 Qb6+=) 17...Kh8 (17...Ng4 18.Bg4 (worse is 18.Ng4 fg4 19.Be2 Bd4 20.Kh1 g3–/+) 18...fg4 19.Qe4=) 18.b5+/– Bg8 19.Ba3 Rfe8 20.Be7 Re7 21.bc6 bc6 22.h3 (better is 22.Nc6!? Re1 23.Re1+/–) 22...Re6+= 23.c5 (23.Qa4 Rdd6+=) 23...Ne8 (23...Nd7!?+=) 24.Nc6 Rc6 25.Nb5 Qb7 (25...Qd7 26.Bc6 Qc6 27.Qe2+= (27.Na7? Qd7–+)) 26.Na7 Qa7 27.Bc6 Nf6 (27...Nc7 28.Qf2+=) 28.a4 Nd5 29.Bb5 f4 30.Rd2 (30.Rd2 Qa5 31.Rc1=; better is 30.Qf2!?+=). Furlepa,Zdzislaw – Rosikiewicz,Wieslaw (+), corr 1AMM Poland, 1991.

6.Nf3 Bg4 7.Be2 0–0 8.fe5 Nd7 9.0–0 Bf3 10.gf3 Be5 11.Nc3 f5 12.f4 Bg7 13.Qb3 Kh8 14.Bf3 1–0. Roe,Philip (1945) – Dooms,Stefan (1860), IECG, 2006.

5.h3 Ne7

6.Nf3 0–0 7.b5 a6 8.a4 ab5 (8...e4 9.Bg7 Kg7 10.Nd4+=) 9.ab5 Ra1 10.Ba1 c6 (10...f5 11.Be2=) 11.Be2 (11.Nc3 f5=) 11...Qc7 (11...cb5 12.cb5 e4 13.Nd4=) 12.0–0 h6 (12...cb5 13.cb5 Bf5 14.Nc3=) 13.Nc3 Be6 (13...c5 14.Qb3=) 14.Qb1 (14.d4 f5=) 14...Nd7 15.d4 ed4 (15...f5 16.Rd1=) 16.Nd4 d5 (16...Ne5 17.f4 Nd7 18.Ne4=) 17.Ne6 (17.cd5 cd5 18.Rc1 Qd6+=) 17...fe6= 18.Bd3 (18.bc6 bc6 19.cd5 ed5=) 18...Ne5 19.cd5 Nd3 20.Qd3 ed5 (20...cd5 21.Na4=) 21.Rc1 (21.Ne2 Be5=) 21...Qd7 22.Bb2 (22.Nd1 Qf5 23.Qd2 Ba1 (worse is 23...cb5 24.Bg7 Kg7 25.Rc7+/–) 24.Ra1 Nc8=) 22...Qf5 (22...c5 23.Rd1=) 23.Qe2 (23.Qd2 Ra8=) 23...Ra8 24.g4 (24.Qd2 Qg5=) 24...Qe6+= 25.Qd2 Nc8 26.Ne2 Bb2 (26...Ra2 27.Nd4 Qe8 28.Qb4=) 27.Qb2= Ne7 28.Nd4 Qd6 (28...Qf6 29.Rc2 Qd6 30.Qc3=) 29.Ra1 (better is 29.bc6!? bc6 30.Nc6+/–) 29...Ra1= 30.Qa1 c5 31.Ne2 (31.Nf3 b6=) 31...b6+= 32.Nf4 d4 33.Qa2 Kg7 34.Qc4 de3 (34...Qe5 35.Qd3=) 35.Qc3 (35.fe3 g5 36.Nh5 Kf8=) 35...Qf6 (35...Kf7 36.fe3 Ke8 37.Kf1=) 36.Qe3 (36.Ne6 Kf7 37.Nd8 Kg7 38.Ne6 Kf7 39.Nd8 Kg7 40.Ne6=) 36...Kf7+= 37.Qe4 Kg7 (37...Qd6 38.Kf1=) 38.Ne6= Kf7 39.Nd8 Kg7 40.Qb7 Qd6 41.Qa8 (41.Nc6 Qd1 42.Kg2 Qd5 43.Kg3 Qd6 44.f4 Kf7=) 41...Qd1+= 42.Kh2 Qd6 43.Kg1 ½–½. Jonsson,Pall G (1825) – Johannsson,Birkir Isak, Reykjavik Open, 2016.

6.Nf3 0–0 7.Be2 Re8 8.0–0 e4 9.Bg7 ef3 10.Bf3 Kg7 11.Nc3 Nf5 12.d4 c6 13.Qc2 Nd7 14.Rad1 Nf8 15.Qb2 Qf6 16.Ne4 Qe7 17.Nc3 Be6 18.d5 cd5 19.Bd5 Bd5 20.Nd5 Qe5 21.Qc2 Rac8 22.f4 Qe6 23.Qc3 f6 24.g4 Ne7 25.g5 Nd5 26.gf6 Nf6 0–1. lican – zbiniu4263, internet, 2014.

4.Nf3 Bg7

5.Nc3 Ne7 6.g3 0–0 7.e3 Bg4 8.Be2 e4 9.Nd4 Be2 10.Nde2 d5 11.cd5 Nd5 12.0–0 Nb4 13.Qb3 Nd3 14.Rab1 Nc6 15.Nf4 Nf4 16.ef4 Nd4 17.Qd5 Nf3 18.Kg2 Nd2 19.Qd8 Rad8 20.Na4 Nf1 21.Bg7 Kg7 22.Kf1 b6 23.Nc3 Rd4 24.Re1 f5 25.f3 ef3 26.Kf2 Rd3 27.Nd1 Rfd8 28.Ne3 Rd2 29.Kf3 R8d3 30.h4 Ra2 31.g4 Raa3 32.gf5 gf5 33.Kf2 Re3 34.Re3 Re3 35.Ke3 Kf6 36.Kd4 Ke6 37.Kc4 c6 38.Kd4 a6 39.Kc4 h5 40.Kd4 Kd6 41.Kc4 b5 42.Kb4 Kd5 43.Kc3 Kc5 44.Kb3 a5 45.Kc3 Kd5 46.Kb3 c5 47.Kc3 Ke4 48.Kb3 Kf4 0–1. kannisogoet – miltar, internet, 2014.

5.d4 Nc6 6.d5 Nb4? (better is 6...Nce7=) 7.Qa4+– Qd7 (7...Nc6 8.dc6 bc6 9.Qc6 Bd7 10.Qa6+–) 8.Qb4 Ne7 9.Nbd2 a5 10.Qa3 0–0 11.e4 c6 12.Bd3 b6 13.0–0 c5 14.Qb3 Qd8 15.Bc3 Bd7 16.Rab1 Nc8 17.h3 Bh6 18.Kh1 Qf6 19.a3 a4 20.Qa2 Kh8 21.Be2 Rg8 22.Rg1 g5 23.g4 Bg7 24.Rg3 Qh6 25.Kg1 Qg6 26.Bd3 h6 27.Nf1 Kh7 28.Ne3 Rh8 29.Nf5 h5 (29...Rb8+–) 30.gh5 Qh5 (30...Qf6 31.Bd2 g4 32.Bg5 gf3 33.Bf6 Bf6 34.Rf3 Rg8 35.Ng3+–) 31.Rg5 Qf3 (31...Kg8 32.Ng7 Qg5 33.Ng5 Kg7+–) 32.Rg7 (32.Ng7?! Qd3 33.Nh5 Qc3 34.Nf6 Kh6+=) 1–0. mtra – brumestik, internet, 2002.

5.d4 Nd7 6.e4 Ne7 7.c5 Nc6 8.cd6 cd6 9.de5 (9.b5 Nd4 10.Nd4 ed4 11.Bd4 Bd4 12.Qd4 Qf6 13.Qf6 Nf6=) 9...Nde5 10.Ne5 Ne5 (10...de5 11.Qd8 Kd8 12.a3=) 11.Bb5+= Bd7 12.Nc3 a6 (12...Rc8 13.Bd7 Qd7 14.Nd5=) 13.Be2 (13.Bd7 Nd7 14.0–0 Rc8+/–) 13...0–0 14.Qd6 Rc8 15.Rd1 Rc6 (15...Be6 16.Qd8 Rfd8 17.Nd5 Bd5 18.ed5=) 16.Qd2 Re8 (16...Qh4 17.g3 Qh3 18.Nd5+/–) 17.b5 ab5 18.Bb5 Rc7 19.0–0 Nc6? (better is 19...Qc8 20.Qd5 Re7+/–) 20.Nd5+– Bb2 (20...Rc8 21.Bg7 Kg7 22.Qb2 f6 23.Nf6 Qf6 24.Rd7 Re7 25.Re7 Ne7 26.e5+–) 21.Qb2 Rc8 (21...Ne5 22.f4 Bb5 23.Qb5 Nc6+–) 22.Nf6 (22.Nf6 Qf6 23.Qf6+–) 1–0. mtra – Gebhard1, internet, 2002.

5.e4 Nf6 6.d3 0–0 7.h3 Be6 8.Be2 Nbd7 9.Nc3 a6 10.a4 c6 11.Ng5 h6 12.Ne6 fe6 13.b5 ab5 14.ab5 d5 15.bc6 bc6 16.cd5 ed5 17.ed5 cd5 18.Bf3 Ra1 19.Qa1 d4 (19...Nc5 20.Be2–/+) 20.Nd5 Nc5 21.Nf6 Qf6 22.Qd1 (22.Qa3 Qb6 23.0–0 Kh7+=) 22...Qf5 23.0–0 Nd3 (23...Qd3!? 24.Bd5 Kh7–/+) 24.Ba3 Rc8?? (24...Rf6 25.Qb3 Kh7–/+) 25.Qe2 (better is 25.Bg4 Qe4 26.Bc8+–) 25...Nf4–+ 26.Qe4 Qg5 (26...Qe4 27.Be4 d3 28.Kh1–+) 27.Kh2 Rc3 28.Bb2 Rb3 (better is 28...Rc7!?–/+) 29.Bc1= Qf6 30.Qd5?? (better is 30.Bf4 Rf3 31.Qf3 Qf4 32.Qf4 ef4 33.g3+=) 30...Nd5–+ 31.Bd5 Kh7 32.Bb3 e4 33.Kg1 e3! 34.fe3 Qf1 (34...Qf1 35.Kf1 de3 36.Be3 Be5+–). elev – changex, internet, 2013.

5.g3 f6 6.Bg2 Ne7 7.0–0 0–0 8.Nc3 c6 9.e3 Bd7 10.d4 e4 11.Nd2 f5 12.a4 a6 13.Qb3 Qe8 14.Rfd1 d5 15.cd5 cd5 16.Rdc1 Nbc6 17.Rc2 a5 18.b5 Nb4 19.Rcc1 Nd3 20.Rd1 b6 21.Bf1 Nb4 22.Ba3 Nec6 23.Nd5 Nd3 24.Bf8 Kf8 25.Bd3 ed3 26.Nb6 Rb8 27.Nd7 Qd7 28.Qd3 Nb4 29.Qa3 Kf7 30.Nb3 Nc2 31.Qa2 Na1 32.Ra1 Kf6 33.Na5 Qd6 34.Nb3 Qb4 35.Nc5 Kg5 36.Rb1 Qc3 37.Qb2 Qd3 38.Nd3 1–0. kannisogoet – dkw2002, internet, 2014.

5.g3 Bg4 6.Bg2 Nd7 7.0–0 Rb8 8.a4 Ngf6 9.d4 e4 10.Nfd2 Qe7 11.h3 Bf5 12.e3 h5 13.Nc3 c6 14.b5 d5 15.cd5 cd5 16.Qb3 Qe6 17.Ne2 Bh6 18.Kh2 a6 19.Ba3 g5 20.Rac1 Nb6 21.ba6 ba6 22.a5 Nbd7 23.Qb7 Kd8 24.Qc7 Ke8 25.Qc8 1–0. hal1958 – orpi, playchess.de, 2002.

5.h3 f5 6.e3 Nf6 7.Be2 0–0 8.0–0 a5 9.b5 e4 10.Nd4 b6 11.Na3 Qe8 12.Nac2 Bb7 13.d3 Nbd7 14.Nb3 ed3 15.Bd3 Kh8 16.a4 Qf7 17.Rc1 Rfe8 18.Ne1 Ne5 19.Be2 Ne4 20.Qc2 Re7 21.Nd3 Nd3 22.Bg7 Qg7 23.Bd3 Nf6 24.Nd4 Nd7 25.Nb3 Ne5 26.Nd4 Qf6 27.Rfd1 Rf8 28.Bf1 (28.Ne2 Nd3 29.Qd3 g5=) 28...Nd7 29.Nb3 Kg8 (29...f4 30.ef4 Qf4 31.Re1+=) 30.Qc3 Qg5 (better is 30...Ne5+=) 31.c5!+/– Nc5 (31...bc5 32.Na5 Deflection (32.Bc4 Decoy); 31...dc5 32.Bc4 Decoy; 31...Nc5 32.Nc5 Combination) 32.Nc5 dc5 (32...bc5 33.Bc4 Rff7 34.Bf7 Rf7 35.e4=) 33.Bc4 Ref7 34.g3 Qh5?? (better is 34...Qe7+/–) 35.Qf6 (35.Bf7 Rf7 36.Rd8 Rf8+–) 35...Qh6 (35...Bd5 36.Bd5 g5+–) 36.Rd7 (36.Rd8 Qg7 37.Rf8 Qf8 38.Rd1 Qe7 39.Qe7 Bd5 40.Bd5 Kg7 41.Qf7 Kh6 42.Qf8 Kh5 43.Bf3 Kg5 44.h4) 36...Qg7 37.Qe6 (37.Rf7?! Rf7 38.Qd8 Qf8 39.Qc7 Kg7 40.Qb6 Rd7 41.Qa5 Qe8 42.Qc3 Kh6+–) ½–½. Sebald,Ralph – Wegener,Olaf, NRW–ch U15 Hiddenhausen, 1996. (=1.Nf3 d6 2.b4 e5 3.c4 g6 4.Bb2 Bg7)

5.e3

5.e3 (--> 4.e3 Bg7 5.Nf3).

5.e3 Nf6 (--> 1.b4 Nf6 2.Bb2 g6 3.Nf3 Bg7 4.c4 d6 5.e3 e5).

5.g3 Ne7

6.Bg2 0–0 7.0–0 c6?? (7...e4 8.Bg7 ef3 9.Bf8 fg2 10.Kg2 Qf8 11.d4–/+) 8.d3 (8.Nc3 Nd7+=) 8...h6 (better is 8...e4 9.Bg7 ef3 10.Bf8 fg2 11.Kg2 Qf8–/+) 9.Nbd2 Be6 10.e3 f5 (10...Nd7 11.Qc2=) 11.Re1 Nd7 12.Qe2 g5 (12...a5 13.a3=) 13.Rec1 (13.Nd4 Bf7 14.N4b3 Qc7+=) 13...Ng6 14.d4 (14.Nb3 Nf6+=) 14...e4= 15.Ne1 Qe7 16.f3 ef3 17.Bf3 Bf7 18.Nd3 White intends c5 18...Rae8 (18...Nb6 19.Rc2+=) 19.Re1 d5 (19...Nb6 20.Rac1=) 20.c5 (20.cd5 Bd5 21.b5 Qd6=) 20...Nf6 21.a4 Qd7 22.Qg2 Re7 23.Nf1 Rfe8 24.Qd2 (24.a5 a6+=) 24...h5 (24...Ne4 25.Qg2–/+) 25.Re2 (25.b5 Qc7+=) 25...h4 (25...Ne4 26.Qc2 h4 27.Rd1–/+) 26.Rae1 (26.Ne5 Qe6 27.Nf7 Rf7–/+) 26...Bh6 (26...Ne4!? 27.Qc2–+) 27.Bg2 (27.Ne5 Ne5 28.de5 Ne4+=) 27...Kh7 28.Qc2 Ne4 29.Bh1 (29.Nf2 Nf2 30.Kf2 g4+=) 29...Qc7–/+ 30.Kg2 (30.Be4 fe4 (worse is 30...Re4 31.Nf2+=) 31.Ne5 Bg7–/+) 30...hg3 (30...g4 31.Ne5–/+) 31.hg3–/+ f4 (31...Be6 32.Kg1–/+) 32.ef4 gf4 33.gf4?? (better is 33.Kg1 Ng3 34.Ng3 fg3 35.Ne5–/+) 33...Nf4–+ (33...Nf4 34.Kh2 Ne2 35.Ne5 Bf4 36.Ng3 Bg3 37.Kg2 Nd4 38.Bd4 Be1–+; 33...Bf4?! 34.Kg1 Rg8 35.Rg2–+) 0–1. Collen,Benjamin C (1670) – Klaver,Cornelis (2075), Durban RSA, Open, 2014. (=1.Nf3 d6 2.b4 e5 3.c4 g6 4.Bb2 Bg7 5.g3 Ne7)

6.Bg2 0–0 7.Nc3 Nbc6 =.

6.Bg2 0–0 7.Ne5? de5–+ 8.0–0 c6 9.Nc3 Be6 10.d3 Qd7 11.a4 Bh3 12.b5 Bg2 13.Kg2 Nf5 14.Ne4 b6 15.Kg1 c5 16.Qc2 Nd4 17.Qd1 f5 18.Nc3 f4 19.Ne4 f3 20.Bd4 fe2 21.Qe2 ed4 22.Ng5 Qe8 (22...a6 23.Rae1–+) 23.Qg4 Qd7?? (better is 23...a6–+) 24.Qe4 Qf5 (24...Na6! 25.ba6 Rae8=) 25.Qa8+= Qg5 26.Qe4 (26.Qa7 Qd8+=) 26...Qf5 27.Rae1 Qe4 28.Re4 Nd7 29.Re7 (29.f4 Bf6=) 29...Rf7 (29...Ne5!? 30.Ra7 Nd3–/+) 30.Rfe1 Re7 31.Re7 Ne5 32.Ra7 Nd3 33.Ra6?? (better is 33.a5 ba5 34.b6+/–) 33...Nb2–/+ 34.Rb6 Nc4 (34...d3!? 35.Rd6 Bd4+=) 35.Rb8+= Kf7 36.b6 (36.Rb7!? Kf6 37.Rc7=) 36...Be5–/+ 37.Rb7? (better is 37.Rc8!? Nb6 38.Rc5–/+) 37...Ke6–+ 38.a5?? (38.f4 d3 39.Kf2 Bd4 40.Kf1 Ne3 41.Ke1 Bc3 42.Kf2 Ng4 43.Kf3 d2–+) 38...Na5 39.Rh7 Nc4?? 40.b7+= d3 41.Rh8?? d2–+ 42.b8Q Bb8 43.Rb8 (43.Rb8 d1Q 44.Kg2–+). kannisogoet – stenly1, internet, 2013.

4.f4 Bg7

5.e3 Nf6 6.fe5 Nh5 7.Nf3 de5 8.d3 0–0 9.Qd2=.

5.fe5 de5 6.Nf3=+ Nd7 7.e3 Ne7 8.d4 ed4 9.Bd4 0–0 10.Bg7 Kg7 11.Qd4 Nf6 12.Qh4? Nf5–+ 13.Qf2 Re8 (13...Re8 14.Qd2 Qe7–+) 0–1. yannigator (2085) – matof (1915), net–chess.com, 2008.

5.fe5 Qh4!? 6.g3 Qc4 –/+.

5.Nf3 Nd7 6.g3 Ne7 7.Bg2 0–0 8.fe5 Ne5 9.Qb3 N7c6 10.Ne5 Ne5 (10...de5 11.e3+=) 11.Nc3 (11.0–0 Be6 12.Na3 Rb8+=) 11...Re8 (11...Be6!? 12.Bd5 c6 13.Be6 fe6–/+) 12.0–0+= c6 13.d4 Ng4 14.d5 Bd4 (better is 14...Qg5!? 15.Nd1 Re2 16.Bg7 Kg7 17.dc6 bc6+=) 15.Kh1= Nf2 (better is 15...Ne3 16.dc6 Ng2=) 16.Rf2+/– Bf2 17.dc6 Rb8?? (better is 17...bc6 18.Ne4 Re4 19.Be4 Qe7 20.Bc6 Bb7+/–) 18.Rf1+– Bd4 (18...bc6 19.Rf2 Bf5+–) 19.c7! Qc7 20.Nd5 Qd8 (20...Qc4 21.Qc4 Bb2 22.Nc7+–) 21.Bd4 Re6 22.Qf3 f5 23.e4 Qf8 24.g4 (better is 24.ef5 gf5 25.g4 Re5 26.Be5 de5 27.gf5 Bf5+–) 24...Bd7 (24...f4 25.g5 h6 26.Nf6 Rf6 27.gf6 Be6+–) 25.gf5 gf5 (25...Re5 26.Be5 de5 27.Qg3+–) 26.ef5 Rh6 27.f6 Kf7 28.Re1 Be6 29.Nc7 Bc4 30.Re7 Kg8 31.Rg7 1–0. Dorozhkin,Oleg – Voropaev,Andrey, Anna RUS, Akulov Mem, 2012.

5.Nf3= f6 6.e3 e4 7.Nd4 c5 8.Nc2 Ne7 9.d3=.

5.Nf3= Bg4 6.e3 (6.fe5 Nd7 7.Qa4 c6 8.Na3 de5 9.c5+=) 6...Ne7 (6...Bf6 7.Qc2 ef4 8.Qe4 Qe7 9.Qe7+=) 7.Be2 Nf5 (7...f5 8.0–0 c6 9.fe5+=) 8.0–0 (8.fe5 de5 9.0–0+=) 8...0–0 (8...ef4 9.Bg7=) 9.fe5 de5 10.Ne5 Ne3? (better is 10...Be2 11.Qe2 Qe7+=) 11.de3+– Qd1 12.Bd1 (12.Rd1?! Be2 13.Rd2 Re8=) 12...Bf5? (12...Bd1 13.Rd1 Nc6 14.Nd3 Bb2 15.Nb2 Nb4 16.Nc3+–) 13.Bd4 f6 14.Nf3 Nc6 15.b5 Nd4 16.Nd4 Bd3 17.Re1 f5 18.Bb3 Kh8? (18...f4 19.Nc3 fe3 20.Rad1 Bd4 21.Rd3+–) 19.Rd1 (19.Nc3 Rfd8 20.Rad1 Rd4 21.ed4 Bd4 22.Kh1 Bc3+–) 19...Be4 (19...Rae8 20.Kf2 Be4 21.g3+–) 20.Nd2 (20.Nc3 c5 21.bc6 Bc6+–) 20...Rae8 21.Ne4 Re4 22.Rac1 (22.c5 Re3 23.Rac1 Rfe8+–) 22...Bh6 23.Nc2 Rfe8 24.Rd7 Re3 25.Rcd1 R3e7 26.Rd8 (26.Re7 Re7 27.Rd8 Kg7+–) 26...Bf4 (26...Bf8 27.c5+–) 27.Re8 Re8 28.g3 Bd6 29.Re1 Bc5 30.Kg2 Rd8 31.Re2 Kg7 32.Kf3 Kf6 33.Ne1 g5 34.Kg2 g4 35.Kf1 Rd4 36.Ng2 Bd6 37.Ne3 Kg5 38.Nd5 h5 (38...Rd3 39.Rf2 Rd4 40.Bc2 Rc4 41.Rf5 (worse is 41.Bf5 Rc1 42.Ke2 Bc5+–) 41...Kg6 42.Rf2 Kg5 43.Nf6+–) 39.Rc2 (better is 39.c5 Bc5 40.Nc7+–) 39...b6 40.Re2 h4 41.gh4 Kh4 42.Ne7 Kh3 43.Nf5 Rf4 44.Rf2 Rf2 45.Kf2 Kh2 46.Nh4?? (better is 46.Kf1+–) 46...Bg3–/+ 47.Kf1 Bh4 48.Bd1 Kg3 49.Bc2 Be7 50.Kg1 Kf4 51.Kg2 Bd6 52.Bd3 Ke3 53.Bc2 (53.Bf5 g3+=) 53...g3 54.Ba4 Kd4 55.Bb3 Kc5 56.Kf3 Kb4 57.Kg2 Kc5 58.Kf3 c6 59.bc6 Kc6 60.Ba4 Kb7 61.Bb5 a6 62.Ba4 Kc7 63.Bc2 Kc6 64.Be4 Kc5 65.Bb7 a5 66.a4 Kc4 67.Bc6 ½–½. Kreuzer,Uwe – Tunic, Bereichsliga, 1981.

4.g3 Bg7

5.Nf3 Ne7 6.d3 0–0 7.Nbd2 b6 8.Bg2 Bb7 9.0–0 Nd7 10.Qc2 c5 11.b5 d5 12.cd5 Nd5 13.e4 Nb4 (13...Nc7!? 14.Qb3 Qe7=) 14.Qb3 (14.Qc3 Nf6 15.Ne5 Nd7=) 14...Nf6 The backward pawn on d3 becomes a target (14...a5 15.Qc3 c4 16.dc4+=) 15.Ne5 Nd7 16.Nec4 Bb2 17.Nb2 (17.Qb2 Nd3 18.Qc3 N3e5+–) 17...Ne5 18.Ndc4 Ned3? (better is 18...Nc4 19.dc4 Qd2+–) 19.Rad1 1–0. pcmvr – tomy (2360), net–chess.com, 2016.

5.Bg2 Na6 6.Qa4 Bd7 7.Qd1 Nb4 8.Bb7 –/+.

5.Bg2 c6 6.a4 (6.Nf3 A) 6...Be6 A1) 7.Qc2 Qb6 (7...Nf6; 7...Na6) 8.a3 Ne7 9.Ng5 Nd7 10.Ne6 fe6 11.Nc3=; A2) 7.d3 Nf6 (7...Na6 8.a3 Ne7 9.0–0 0–0 10.Nbd2 e4 11.Nd4=) 8.0–0 Qb6 9.Ng5 Bf5 10.a3 0–0 11.Nd2=; B) 6...Nf6 B1) 7.Nc3 0–0 (7...Be6 8.d3 0–0 9.0–0 Qb6 10.a3 h6 11.Rc1=; 7...Qb6 8.a3 0–0 9.d3 e4 10.Na4 Qa6 11.de4=) 8.d3 Re8 9.0–0 d5 10.a3 Nbd7 11.cd5=; B2) 7.0–0 0–0 (7...Qb6 8.a3 e4 9.Ng5 d5 10.c5 Qd8 11.f3=) 8.d3 Na6 9.b5 cb5 10.cb5 Nc7 11.a4=; B3) 7.d3 Qb6 8.Qd2 Na6 9.a3 0–0 10.0–0 Re8 11.Nc3=) 6...Nf6 (6...Be6 7.d3 Nh6 (7...Nd7 8.Nf3 Ngf6 9.0–0 h6 10.a5 0–0 11.Nbd2=; 7...Nf6 8.Nf3 0–0 9.0–0 Nbd7 10.Nbd2 Qe7 11.Ng5=) 8.Nf3 Nd7 9.0–0 0–0 10.a5 d5 11.Qb3=) 7.Nc3 (7.d3 0–0 (7...Qb6 8.b5 0–0 9.Nf3 a6 10.a5 Qd8 11.b6=) 8.Nf3 e4 9.de4 Qb6 10.Qb3 Na6 11.b5=) 7...0–0 (7...Be6 8.d3 a5 9.b5 d5 10.Nf3 d4 11.Nb1=; 7...a5 8.b5 0–0 9.d3 d5 10.bc6 bc6 11.cd5=) 8.d3 (8.Nf3 a5 9.b5 e4 10.Nd4 d5 11.bc6+=) 8...Be6 (8...d5 9.Nf3 e4 10.de4 Ne4 11.Qc2=) 9.Nf3 h6 (9...Qe7 10.0–0 Nfd7 11.b5=) 10.e4 (10.0–0 Nbd7 11.a5=) 10...Qd7 (10...Nbd7 11.0–0=) 11.0–0 Bh3 12.Qc2 Na6 13.Ba3 Nc7 14.Rad1 Bg2 15.Kg2 Nh5 16.d4 (16.Bc1 Qe6=) 16...Qg4 (better is 16...Nf4!? 17.Kh1 Qg4+=) 17.Ne2 Ne6 18.Bc1 Nef4 19.Nf4 Nf4 20.Bf4 ef4 21.h3 Qe6 22.gf4 f5 23.e5 Qe7 (23...d5 24.c5+/–) 24.Qb3 Rad8 25.d5 g5 (25...cd5 26.cd5 Rfe8 27.Rfe1+–) 26.dc6 (26.ed6!? Rd6 27.c5 Rd5 28.Rd5 cd5 29.Qd5 Kh8 30.fg5 hg5+–) 26...de5 27.c5 Kh8 28.c7 (better is 28.Ne5 Be5 29.fe5 bc6 30.Qc3+–) 28...Rd1+= 29.Rd1. Kuehnmund,Ivan – Vodicka,Vlastimil, ARMY–ch13 Praha, 1966.

5.Bg2 Nf6 6.Nf3 Be6 7.Ne5 c6 (7...c6 8.Nd3 Bc4=). algernon (2320) – thorr (2305), net–chess.com, 2004.

5.Bg2 Ne7

6.Nc3 0–0 7.e3 (7.Nf3 Nbc6=) 7...f5 (7...Nbc6!? 8.b5 Na5=) 8.Nge2= c6 (8...e4 9.0–0=) 9.b5 (9.d4!?+=) 9...Be6= 10.bc6 (10.d3 a6=) 10...bc6 (10...Nbc6 11.Nd5=) 11.d3+= Nd7 (11...Na6 12.0–0=) 12.0–0= Qa5 (12...Rb8 13.Rb1=) 13.Qc2 (13.Rb1 Rab8=) 13...Rab8 14.Rab1 Nc5 15.Ba1 (15.Rfd1 f4 16.ef4 ef4 17.gf4 Bg4=) 15...e4 (15...Bf6 16.Rfd1+=) 16.de4 (16.Rb8 Rb8 17.de4 Bc4 18.ef5 Bd3=) 16...Bc4 (16...Rb1 17.Qb1 Bc4 18.ef5=) 17.Rb8 Rb8 18.ef5 Bd3 (18...gf5 19.Rd1=) 19.Qd1 (19.Qd2 gf5 20.Rd1 Be2 21.Qe2 d5=) 19...gf5 20.Re1 Be2 (20...d5 21.Nd4=) 21.Qe2 d5 22.Rc1 Qa3 23.Qd2 (23.Rc2 Nd3=) 23...Nd3 (23...Ne4 24.Ne4 Ba1 25.Nc3 Bc3 26.Rc3 Rb1 27.Bf1=) 24.Rd1 Nb2 25.Rc1 Nc4 (25...Nd3 26.Rf1 Nb2 27.Rc1=) 26.Qc2 Kh8 (26...Qa5 27.Bf1=) 27.Bf1 Ne5 (27...Rb4 28.Be2=) 28.Kg2 (28.Rb1 Rb6+=) 28...Qd6 (28...Qc5 29.Qd1+=) 29.Na4 (29.Be2+/–) 29...N7g6 (better is 29...Nd7!?+=) 30.Bd4+– (30.Qf5?! Rf8 31.Qc2 Ng4 32.Bg7 Kg7 33.Qc3 Rf6+=) 30...Rg8 (30...Qd7 31.Be2+–) 31.Qf5 (31.Be2 Nc4 32.Ba7 Nge5+–) 31...Rf8+/– 32.Qh5 (32.Qh5 Qa3 33.Qd1+/–) 1–0. Ivanchuk,Vassily (2710) – Li,Chao B (2750), Elite Mind Games, 2016.

6.d3 0–0 7.Nc3 c6 (7...Nbc6 8.b5 Nd4 9.e3 Ne6 10.Nge2 a6 11.0–0=) 8.Nf3 d5 9.0–0 h6 (9...d4 10.Ne4 f5 11.Nc5=) 10.Nd2 (10.Qd2 Be6 11.cd5=) 10...Be6 (10...d4 11.Nce4=) 11.a4 (11.a3=) 11...Nd7 12.a5 a6 13.Na4 f5 14.Rc1 Qe8 15.Nb3 Rd8 16.Nbc5 Nc5 17.Nc5 Bc8 18.Qb3 Kh7 (18...f4 19.cd5 Nd5 20.e4 fe3 21.fe3+=) 19.Bc3 (19.f4 ef4 20.Bg7 Kg7 21.Rf4 g5+/–) 19...h5 (19...d4 20.Bd2+=) 20.b5 ab5 21.cb5 h4 22.b6 (22.bc6!? bc6 23.e3+/–) 22...f4= 23.a6 hg3 (23...ba6!? 24.gh4 Bg4=) 24.a7 Bg4 25.Nb7 Ra8 26.Nd6 (26.hg3 Be2 27.Rfe1 f3+–) 26...Qd7 (26...Qd8!? 27.f3 Bf5+=) 27.b7+/– Ra7 (27...Qd6!? 28.Bb4 Qd7 29.Be7 Ra7 30.Bf8 Rb7+/–) 28.b8Q+– Rb8 29.Qb8 gh2 (29...Be2!? 30.fg3 Bf1 31.Rf1 Ra3+/–) 30.Kh2 Be2 31.Rh1 Ng8 32.Rce1 f3 33.Kg3 Nh6 (33...Bh6 34.Bf3 Bf3 35.Kf3 Ra4+–) 34.Rh6! (34.Bf3?! Bf3 35.Rh6 Bh6 36.Kf3 Qh3 37.Ke2 Qh5 38.Kf1 Qh1 39.Ke2 Qh5 40.Kf1 Qh1 41.Ke2 Qh5=) 34...Kh6 (34...Bh6 35.Be5; 34...Kh6 35.Rh1) 35.Rh1 Kg5 36.Bd2 (36.Bh3 Qe7 37.Qb4 Ra4 38.Qa4 e4 39.Nf7 Qf7 40.Bd2 Qf4 41.Bf4 Kf6 42.Qc6 Ke7 43.Qe6 Kd8 44.Qd7) 36...Kf6 37.Bh3 Ra8 (37...Qe7 38.Bb4 Rb7 39.Qb7 Qb7 40.Nb7 Bh6+–) 38.Qa8 (38.Bd7?! Rb8 39.Bc6 Rb6+/–) 38...Qd6 39.Kh4 (39.Qg8 Bf1 40.Rf1 e4 41.Bf4 Qf4 42.Kf4 Bh6 43.Kg3 Bg5+–) 39...Bf8?? (better is 39...Kf7 40.Rc1 Qe7 41.Kg3 e4 42.Qc6 Be5 43.Kg4 ed3 44.Qd5 Qe6 45.Qe6 Ke6 46.Kg5 Kd5+–) 40.Bg5 Kg7 41.Rb1 1–0. Miralles,Gilles (2285) – Seret,Jean Luc (2370), FRA–ch Belfort, 1983.

6.d4 A) 6...Nbc6 7.d5 Nb8 (7...Nd4 8.e3 Ndf5 9.Ne2 c5 10.bc5 dc5 11.0–0+=) 8.Nf3 a5 9.a3 0–0 10.0–0 ab4 11.ab4=; B) 6...0–0 7.e3 (7.de5 de5 8.Nc3 c6 9.Nf3 Nf5 10.e4 Nd4 11.Nd4=) 7...ed4 (7...a5 8.b5 Nf5 9.Ne2 Re8 10.0–0 a4 11.de5=) 8.Bd4 Bd4 9.Qd4 a5 10.b5 Nf5 11.Qc3=; C) 6...a5 7.b5 0–0 8.de5 de5 9.Qd8 Rd8 10.Nc3 c6 11.Na4=.

6.e3 0–0 7.Ne2 (7.d4 Nbc6 8.b5 Nb4=) 7...c6 (7...Nbc6 8.b5 Na5 9.Qa4+/–) 8.d4 Bg4 9.de5 (9.0–0 Qb6 10.de5 Qb4+=) 9...de5+= 10.Qc2 Bf5 (10...Na6 11.b5 Nb4 12.Qc3 Nd3 13.Kf1 Nb2 14.Nd2–+) 11.e4= Be6 12.0–0 a5 (12...Qb6 13.a3=) 13.b5 (13.a3 ab4 14.ab4 Ra1 15.Ba1 Na6=) 13...Nd7 (13...cb5 14.cb5 Nd7 15.Rd1=) 14.Na3 (14.Rd1 Rc8 15.bc6 Nc6=) 14...Nc5 (14...Rc8!? 15.bc6 Nc6+=) 15.Rad1 Qc7 16.Bc1 (16.f4 Rfd8=) 16...f5 17.Nc3 Bf7 (17...Rad8 18.ef5 Nf5 19.Ne4 Ne4 20.Qe4+=) 18.Bg5 (18.Be3 Qb6+=) 18...Rae8 (18...Be6 19.b6 Qb6 20.Be7+–) 19.bc6 (19.Be3 Qb6=) 19...bc6 20.Be3 Ne6 21.Na4 (better is 21.ef5!? Nf5 22.Qe4=) 21...Nd4–/+ 22.Bd4 ed4 23.ef5 Nf5 24.Qd3 Re7 (24...c5 25.Rfe1–/+) 25.Nc5 Ne3?? Attacks the isolani on c4 (25...Qe5 26.Ne4+=) 26.fe3–/+ Re3 27.Qd2 Ra3 28.Nb3 (28.Qe2 Re3 29.Qd2 Bc4 30.Rf8 Kf8–+) 28...Ra4 (28...Bc4 29.Rf8 Kf8–/+) 29.Nd4–/+ Rc4 (29...Bc4 30.Rf8 Bf8 31.Qc2+=) 30.Nf3 (30.Nc2 Qb6 31.Kh1 Qb2–+) 30...h6 (better is 30...Ra4!?–+) 31.Qd3–/+ c5 (31...Rb4 32.Qc2–/+) 32.Qa3 (32.a3 Rc3 33.Qe4 Ra3–+) 32...Rb4 (32...Rc2 33.Rc1 Bb2 34.Qe3 Rc1 35.Rc1 Bc1 36.Qc1–+) 33.Nh4 (33.Qd3 Rb2 34.Rd2 c4–+) 33...c4 (33...Bd4 34.Kh1–+) 34.Be4 (34.Qe3 Qb6 35.Qb6 Rb6–+) 34...c3 35.Bg6 (better is 35.Rde1–+) 35...Qb6 (35...Qb6 36.Kh1 Qc6 (36...Bg6 37.Rfe1 Be4 38.Ng2–+) 37.Kg1 Qc5 38.Kg2 Rb2 39.Qb2 Bd5 40.Kh3 cb2–+) 0–1. Muse,Mladen (2455) – Budnikov,Alexandar (2535), Berliner Sommer, 1994.

6.e3 c6 7.Ne2 d5 8.cd5 cd5 (8...Nd5 9.a3=) 9.f4 d4 (9...f6 10.0–0=) 10.fe5+= Be5 (better is 10...de3!? 11.d4 f6 12.ef6 Bf6+=) 11.Bd4+/– Bd4 12.Nd4 (12.ed4?! 0–0+=) 12...Nbc6 13.Nc6 Nc6 14.b5 Ne5 15.0–0 Bg4 (15...a6 16.d4 Ng4 17.h3+–) 16.Qa4 0–0 (16...Bc8 17.Nc3 0–0 18.Nd5+–) 17.d4 (worse is 17.Bb7 Bh3 18.Rd1 Rb8+/–) 17...Nd7 18.Bb7 Nb6 19.Qa3 Nc4 (19...Rb8 20.Bc6 (20.Qa7?! Qc7=) 20...Nc4 21.Qa7 Ne3 22.Rf2+–) 20.Qd3 Rb8 21.Bg2 Nb2 (21...Rc8 22.Nd2 Nd2 23.Qd2+–) 22.Qb3 Qe8 (22...Be2 23.Na3 Bf1 24.Rf1+– (24.Qb2 Bg2 25.Kg2 Qd5 26.Kg1 Rfe8+=)) 23.Qb2 Qe3 24.Rf2 Rfd8 25.d5 a6 (25...Rdc8 26.Nd2 Bf5 27.d6+–) 26.Qf6 (26.Qf6 Qc1 27.Bf1 ab5 28.Qf7 Kh8 29.Qf6 Kg8 30.Nd2+–) 1–0. pierre – Aziraphale, chess.com, 2007.

6.Nf3 0–0 7.0–0 e4 8.Bg7 ef3 (8...Kg7?! 9.Nd4 f5 10.f3=) 9.Bf8 fg2 10.Kg2 Qf8 11.e4 Be6 12.d3 Qc8 13.Re1 Nbc6 14.a3 Bh3 15.Kg1 Nd4 16.Nd2 Qd7 17.f3 Nec6 18.Nb3 Nb3 19.Qb3 Nd4 20.Qd1 f5 21.ef5 Qf5 (worse is 21...Nf5 22.d4+=) 22.Re3 Rf8 23.f4 Bg4 24.Qf1 Nc2 25.Qc1 Qf6 26.Ra2 Ne3 27.Qe3 Qc3 28.Qd2 Qd4 (28...Qd4 29.Qf2 Qd3–+) 0–1. Williams,Barry M – Doyle,Timothy J, NZCCA HT corr New Zealand, 1998.

6.Nf3 0–0 7.Qc2 Nf5 (7...e4 8.Ng5 Bb2 9.Qb2 f5 10.0–0 c5 11.b5=; 7...Na6 8.a3 Bf5 9.d3 Rb8 10.0–0 c5 11.b5+=) 8.e4 Ne7 9.d4 Nbc6 10.de5 de5 11.a3=.

6.Nf3 Nbc6 =.

6.f4 0–0 7.d3 ef4 8.Bg7 Kg7 9.gf4 Nf5 10.Qd2 Qf6 11.Nc3 Nc6 (11...Ne3! 12.Kf2 Qf4 13.Nf3 Re8–/+) 12.Nf3 Nh4 13.0–0 Ng2 14.Nd5 Qd8 15.Kg2 f6 16.Qc3 Ne7 17.e4 Nd5 18.cd5 h6 19.Nd4 Kh7 20.h4 (20.f5!? Rg8 21.Kh1+/–) 20...f5= 21.Rf3 fe4 (21...Qh4? 22.Qc7 Kg8 23.Qd6+–) 22.de4 Bg4 23.Rg3 (23.Ne6 Be6 24.de6 Qh4 25.Qc7 Kg8 26.e7= (26.Qd6?? Rad8 27.Qd7 Rd7 28.ed7 Qg4 29.Rg3 Qd7–+; 26.Qb7 Rac8 27.Raf1 Qg4 28.Kf2 Rc2 29.Ke3 Qe6+=)) 23...Rf4–/+ 24.Rf1 Rf1 (24...Re4 25.Rf7 Kg8 26.Ne6 Re2 27.Kf1 Kf7 28.Qg7 Ke8 29.Qg6 Ke7 30.Nd8 Kd8 31.Rg4 Ke7 32.Qh7 Kd8 33.Ke2 c5 34.Rg8) 25.Rg4?? (better is 25.Kf1 Qd7 26.Rg4 Rf8 27.Nf5 gf5 28.Rf4+=) 25...Qf6–+ 26.Qc7 (26.Qe3 Rf8 27.b5–+) 26...Kh8 27.Rg6 (27.Nf5 gf5 28.Qb7 Rf2 29.Kg3 Rf3 30.Kf3 fg4 31.Ke2–+) 27...Qf2 (27...Qg6 28.Kf1 Qe4 29.Qd6 Qd4 30.Qh6 Kg8 31.Qe6 Kg7 32.Qd7 Kh8 33.Qf7 Qc4 34.Ke1 Qh4 35.Kd1–+; 27...Qd4 28.Rh6 Kg8 29.Qh7 (29.Kf1 Rf8 30.Qf7 Rf7 31.Rf6 Rf6 32.Kg2 Qf2 33.Kh3 Rf4 34.e5 Rh4) 29...Kf8 30.Kf1 Qd1 31.Kf2 Qd2 32.Kg3 Qe3 33.Kg4 Qe2 34.Kf5 Qf1 35.Ke6 Qh3 36.Qf5 Qf5 37.Kf5+–) 28.Kh3 Rh1 (28...Qd4? 29.Rh6 Kg8 30.Qh7 Kf8 31.Qh8 Qh8 32.Rh8 Kf7 33.Ra8+–) 29.Kg4 Rh4 0–1. Macedo,Alexandre Soares De (1895) – Da Silva,A Dutra (1745), Natal BRA, Potiguar Open, 2012.

5.Bg2 f5

6.Qb3 Qe7 7.Nc3 Nf6 8.Nf3 c6 9.0–0 0–0 10.Rac1 (10.d3 Na6 (10...a5 11.b5 Nbd7 12.Qc2 Nc5 13.d4 Ncd7 14.e3 c5 15.de5=) A) 11.a3 Nc7 (11...Be6; 11...Bd7) 12.Rab1 Bd7 13.b5 cb5 14.Ng5 Kh8 15.Nb5=; B) 11.Rad1 Bd7 (11...Be6 12.d4 e4 13.Ng5 Bd7 14.f3 ef3 15.Rf3=) 12.d4 e4 13.Ng5 Nc7 14.Bc1 h6 15.Nh3=; C) 11.b5 Nc5 12.Qc2 Be6 13.bc6 bc6 14.Rfd1 Rfb8 15.Ba3=) 10...h6 (10...Nbd7 11.d3 a5 12.b5 Re8 13.Rb1 e4 14.Nd4 a4 15.Na4=) 11.b5 (11.d3 e4 (11...Be6 12.b5 Nbd7 13.Nh4 Nc5 14.Qc2 Qe8 15.bc6+=; 11...Qf7 12.b5 Qe6 13.c5 Qb3 14.ab3 e4 15.de4=) 12.Nd4 Re8 13.b5 Nfd7 14.bc6 bc6 15.Na4=) 11...Be6 (11...e4 12.Nd4 a6 13.bc6 bc6 14.c5 d5 15.Na4=; 11...a6 12.bc6 bc6 13.c5 d5 14.Ne5 Qe5 15.Nd5=) 12.a4 (12.d3 Nbd7 13.Qa3 Rfc8 14.Rb1 a6 15.bc6=) 12...Nbd7 13.Ba3 (13.d3 Rfc8 14.Qb4 e4 15.Ne1=) 13...g5 (13...c5 14.d3 e4 15.Nd2=) 14.Rfd1 (14.d4 e4 15.Ne5=) 14...Rad8 (14...c5 15.d3=) 15.d4 (15.d3=) 15...c5 16.de5 de5 17.Nd5 Qf7 18.Nc7 e4 19.Ne1 f4 20.Rd6 (20.gf4!? gf4 21.Nd5=) 20...Bg4+= 21.f3 fg3 22.hg3 Nh5 (22...Rc8 23.fg4 Rc7 24.Bb2–/+) 23.fg4 Qf2 24.Kh2 Ng3 25.Rg6 (25.Rg6 Nf1 26.Kh1–/+) ½–½. Miralles,Gilles (2455) – Lamorelle,Yves, France, 1985.

6.Nf3 Nf6 7.0–0 0–0 (7...e4 8.Nd4 0–0 9.Na3 Nc6 10.Nc6 bc6 11.Nc2 Bd7 12.Ne3 Nh5 13.Bg7; 7...a5 8.b5 0–0 9.Nc3 Nbd7 10.Ng5 Nb6 11.d3 Ng4 12.Qd2 f4 13.Nf3) 8.d3 (8.Qb3 e4 9.c5 d5= 10.Nd4 Nc6 11.Nc6 bc6 12.Nc3 Qe7 13.Rae1; 8.Nc3 e4 9.Nd4 Nc6 10.Nc6 bc6 11.Qb3 Qe7 12.d4 Bd7 13.b5; 8.c5 e4 9.Qb3 d5 10.Nd4 Nc6 11.Na3 Nd4 12.Bd4 Be6 13.Rac1; 8.b5 e4 9.Nd4 c5 10.bc6 Nc6 11.Na3 Qb6 12.Nab5 a6 13.Nc6) 8...h6 (8...a5 9.b5= Nbd7 10.Nc3 Nc5 11.Qc2 Bd7 12.d4 ed4 13.Nd4) 9.h4 (9.Qb3 a5 (9...e4 10.de4 Ne4 11.Nc3 Nc6 12.Ne4 fe4 13.Nd2) 10.c5 (10.Nbd2 ab4 11.c5 Kh7 12.a3 e4 13.de4) 10...Kh7 11.cd6 (11.Nbd2 ab4 12.cd6 cd6 13.a3) 11...cd6+= 12.b5 Nbd7 13.Nbd2) 9...Nbd7 (9...Be6 10.Nc3= a5 11.Qa4 Nbd7 12.ba5 c6 13.Ba3; 9...a5 10.b5 Be6 11.Nfd2 Ra7 12.Nc3 Nbd7 13.Qc2) 10.Nbd2 (10.Qb3 a5= 11.c5 Rf7 12.cd6 cd6 13.Nc3) 10...Kh7 (10...Qe7 11.Qc2= a5 12.a3 Ng4 13.h5) 11.Rc1 (11.Nb3 f4= (11...Qe7 12.Qd2 f4 13.gf4) 12.Na5 c5 13.gf4; 11.Qc2 Ng4 12.h5 gh5 13.c5) 11...Qe7 (11...a5 12.b5 f4 13.Bc3) 12.c5 (12.Bc3 Nb6= 13.Qb3; 12.Nb3 f4 13.gf4) 12...d5 (better is 12...dc5 13.bc5= (13.e4 fe4 14.de4 b6=)) 13.a3 (better is 13.Qb3+=) 13...e4–/+ 14.de4 fe4 15.Nh2 (15.Nd4!?+=) 15...e3 16.Nb3 c6 (16...ef2 17.Rf2 Ne5 18.h5 Nh5 19.Rf8 Qf8 20.Qd5 Ng3 21.Be5 Ne2 22.Kh1–/+) 17.Qd3 (17.f4!?=) 17...ef2+= 18.Rf2 Ne5 19.Qe3 Re8 20.Rcf1 Bf5 21.Be5 (21.Qe5 Qe5 22.Be5 Re5+=) 21...Qe5 22.Qe5 Re5 23.Nd4 Rae8 24.Nhf3 (24.Nf5 gf5 25.Bh3 Re3 26.Bf5 Kg8+=) 24...Re3 (24...Re4 25.Nf5 gf5 26.Nd2–/+) 25.Nf5+= gf5 26.Nd4 Ng4 27.Nf5 Nf2 (27...Ra3 28.Rf4 h5 29.e4=) 28.Ne3= Re3 29.Kf2 (29.Rf2 Kg8+=) 29...Ra3+= 30.e3 (30.Bh3 Rb3+=) 30...Rb3–/+ 31.e4 Bd4 (31...d4–/+) 32.Ke1 (32.Ke2 de4 33.Rb1 Rg3 (33...Rb1?! 34.Be4 Kg7 35.Bb1=) 34.Be4 Kg8+=) 32...Rb1 (better is 32...de4!? 33.Be4 Kg7–+) 33.Ke2+= Rb2 34.Kd3 Bg7 (34...Bc5 35.ed5 Rg2 36.bc5 Rg3 37.Ke4 cd5 38.Kd5+=) 35.Bh1= d4 36.e5 Rb4 37.Re1 (37.e6 Kg8=) 37...Kg8 (37...Kg6 38.e6 Rb3 39.Kd2+=) 38.e6 Kf8 (38...Rb3 39.Kd2 Re3 40.Rb1=) 39.e7 Ke8 40.Re6 Rb3 41.Kc2 Re3 42.Be4+= Re2 (42...Rc3 43.Kd2 Rg3 44.h5+/–) 43.Kd1+/– (43.Kd1 Re4 44.Re4+/–) 1–0. Samadzade,Sevinj – Anakidze,Nino, WYg10, Heraklio GRE, 2004.

6.Nf3 Nf6 7.Nc3 A) 7...e4 8.Nd4 0–0 9.0–0 Nc6 10.Nc6 bc6 11.d3 Qe7 12.Rb1 Bb7 13.de4; B) 7...a5 8.b5 (8.Qa4 Nbd7 9.0–0 0–0 10.d3 c6 11.c5 b5 12.cb6 Qb6 13.Ba3; 8.a3 0–0 9.0–0 e4 10.Nd4 ab4 11.ab4 Ra1 12.Qa1 Nc6 13.Nc6) 8...0–0 9.0–0 Nbd7 10.d4 e4 11.Nd2 Nb6 12.Na4 Na4 13.Qa4; C) 7...0–0 8.0–0 (8.d3 a5 9.b5 Nbd7 10.0–0 Nc5 11.Qc2 Bd7 12.d4 ed4 13.Nd4; 8.Qa4 e4 9.Nd4 Bd7 10.Qb3 Ng4 11.Nc2 Be6 12.0–0 Nc6 13.Nd5; 8.Qb3 e4 9.c5 d5 10.Nd4 Nc6 11.Nc6 bc6 12.0–0 Qe7 13.Rae1) 8...e4 9.Nd4 Nc6 10.Nc6 bc6 11.Qa4 Bb7 12.d4 Qd7 13.Rab1.

6.Nf3 Nh6 A) 7.0–0 A1) 7...Na6 8.Qa4 (8.Qb3 0–0 9.Na3 Be6 10.h4 Nf7 11.Nc2 d5 12.c5 Qd7 13.d4; 8.c5 Nb4 9.cd6 cd6 10.Qb3 Na6 11.Nc3 Nc5 12.Qa3 0–0 13.d4; 8.b5 Nc5 9.Qc2 0–0 10.d4 ed4 11.Nd4 Ng4 12.Bd5 Kh8 13.Nb3) 8...Bd7 9.Qb3 0–0 10.c5 Nf7 11.cd6 cd6 12.Na3 Qe8 13.Nc4; A2) 7...a5 8.Qa4 (8.b5 0–0 9.d3 Nd7 10.Nc3 Nb6 11.Qd2 Ng4 12.h3 Nf6 13.Rab1) 8...Bd7 9.b5 0–0 10.c5 Be6 11.cd6 cd6 12.Qa3 Nf7 13.e3; A3) 7...Nd7 8.Qb3 a5 9.a3 0–0 10.c5 Rf7 11.cd6 cd6 12.Rc1 a4 13.Qa2; A4) 7...0–0 8.d3 (8.Na3 Be6 9.h4 Nf7 10.h5 e4 11.Nd4 Bd4 12.Bd4 Nc6 13.Bc3) 8...Na6 9.Qb3 Be6 10.Nc3 c6 11.Rad1 Qe7 12.e3 Nc7 13.h3; B) 7.Na3 B1) 7...a5 8.b5 (8.Qa4 Bd7 9.Nb5 Nc6 10.0–0 0–0 11.Qb3 e4 12.c5 Nf7 13.Nfd4; 8.ba5 Nc6 9.c5 d5 10.Nb5 0–0 11.0–0 f4 12.Bc3 Nf5 13.d3; 8.Nc2 0–0 9.b5 Nd7 10.0–0 Nc5 11.Nfe1 Na4 12.Bd5 Kh8 13.Qc1) 8...Nd7 9.h4 Nc5 10.Ng5 Nf7 11.d4 e4 12.Qc2 Ne6 13.Ne6; B2) 7...0–0 8.0–0 (8.Qb3 e4 9.Bg7 Kg7 10.Qc3 Qf6 11.Nd4 c5 12.Ndb5 cb4 13.Qf6; 8.d3 a5 9.b5 Nd7 10.Qd2 e4 11.Bg7 ef3 12.Bh6 fg2 13.Rg1) 8...a5 9.b5 Nd7 10.Qc2 Ng4 11.Rad1 Nc5 12.d4 ed4 13.Nd4; C) 7.d3 C1) 7...Ng4 8.h3 (8.0–0 0–0 9.Nc3 f4 10.h3 Nf6 11.Qd2 fg3 12.fg3 Nc6 13.b5; 8.Nbd2 0–0 9.h3 Nf6 10.Qb3 Re8 11.0–0 a5 12.a3 Qe7 13.Ng5; 8.Nc3 0–0 9.0–0 f4 10.h3 Nf6 11.Qd2 fg3 12.fg3 Nc6 13.b5) 8...Nf6 9.Nc3 0–0 10.0–0 f4 11.Qb3 Nc6 12.c5 Kh8 13.gf4; C2) 7...Na6 8.a3 (8.Qb3 0–0 9.Nc3 Be6 10.h4 c6 11.Ng5 Nc7 12.b5 Ng4 13.0–0; 8.Qa4 Bd7 9.Qb3 0–0 10.Nc3 c6 11.0–0 Nc7 12.e4 a5 13.ba5) 8...0–0 9.Nc3 Be6 10.0–0 c6 11.b5 cb5 12.cb5 Nc5 13.d4; C3) 7...0–0 8.Nc3 (8.0–0 Na6 9.Qb3 e4 10.de4 fe4 11.Nfd2 e3 12.fe3 Rf1 13.Nf1; 8.Nbd2 e4 9.Bg7 ef3 10.Bh6 fg2 11.Rg1 Re8 12.Nf3 Qf6 13.Rg2) 8...a5 9.b5 Nd7 10.0–0 Nb6 11.Qd2 Ng4 12.h3 Nf6 13.c5.

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  • 1.b4 (4 players, 10 days/move)
  • 1.b4 e5 2.Bb2 Bb4 3.Be5 Nf6 (4 players, 3 days/move)
  • 1.b4 e5 2.Bb2 Bb4 3.f4 ef4 4.Bg7 Qh4 5.g3 fg3 6.Bg2 gh2 7.Kf1 hg1Q 8.Kg1 (Kucharkowski-Meybohm gambit, 6 players, 10 days move)
  • 1.b4 e5 2.Bb2 f6 3.e4 Bb4 4.Bc4 (Sokolski gambit, 4 players, 3 days/move)
  • 1.c4 Nf6 2.b4 (English orangutan, 4 players, 3 days/move)
  • 1.e4 c5 2.b4 (Sicilian: Wing gambit, 4 players, 10 days/move)
  • 1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4 (French: Wing gambit, 4 players, 3 days/move)

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