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TESTD785 Release 2017-07-01
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(c) Marek Trokenheim

1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c6

(...)

5.c4 Qb6 6.Nc3 Be7 7.Nf3 Nbd7 8.d4 0–0 9.Bd3 dc4 10.Bc4 Nd5 11.Qb3 Bb4 12.Rc1 N7f6 13.0–0 Nc3 14.Bc3 Bc3 15.Rc3 Nd5 16.Bd5 ed5 17.bc6 bc6 18.Qb6 ab6 19.Rc6 Ra2 20.Rb6 Ba6 21.Rc1 f6 22.h3 Bc4 23.Rcb1 Rfa8 24.Rb8 Rb8 25.Rb8 Kf7 26.Rb7 Kf8 27.Nh4 Ra1 28.Kh2 Ra2 29.Kg3 Bd3 30.Rd7 Ra5 31.Nf3 Bf5 32.Rc7 Bd3 33.Rc5 Rc5 34.dc5 Ke7 35.Nd4 g6 36.h4 Bf1 37.Kf3 Bd3 38.g4 h6 39.Kg3 Be4 40.h5 g5 41.Nf5 Bf5 42.gf5 Kd7 43.f4 gf4 44.Kf4 Kc6 45.e4 de4 46.Ke4 Kc5 0–1. Kiddle,A – Welch,M, Rooks v Knights, 2002.

5.c4 c5 6.Nf3 b6 7.Be2 Bb7 8.0–0 Nbd7 9.d3 Bd6 10.Nbd2 Qc7 11.a4 Ng4 12.h3 Nge5 13.Ne5 Be5 14.Be5 Ne5 15.a5 dc4 16.dc4 0–0 17.a6 Bc8 18.f4 Ng6 19.Ra3 Ne7 20.Ne4 e5 21.Qd6 Qd6 22.Nd6 ef4 23.ef4 Nf5 (23...Rd8 24.Bf3 Rb8 25.Nc8 Rbc8 26.Re1+=) 24.Nc8 Rac8 25.Bg4 g6 26.Bf5 gf5 27.Rg3 Kh8 28.Rd3 Rfe8 (28...Rfd8!? 29.Rfd1 Rd3 30.Rd3 Kg7+/–) 29.Rd7+– Re4 (29...Ra8 30.Rf7 Re4 31.Rd1 (31.Rf5?! Rc4 32.Rd1 Rb4+–) 31...Rc4 32.Rdd7+–) 30.Ra7 Rc4 31.Ra1 1–0. Taus,M (2130) – Pericka,T (1965), Chance Cup Open, 2011.

5.c4 Nbd7 6.a4 Qa5 7.Bc3 Bb4 8.Qb3 Bc3 9.Qc3 Qc3 10.Nc3 cb5 11.cd5 b4 12.de6 bc3 13.ed7+= Bd7 14.dc3 Ne4 15.c4 Nc5 16.a5 0–0 17.Nf3+/– f6 18.Be2 Nb3 19.Ra3 Nc5 20.0–0 Ne4 21.Rd1 Rad8 22.Nd4 a6 23.Bf3+– Nc5 24.Bd5 Kh8 25.Rb1 Rb8 26.Kf1 Bg4 27.h3 Bh5 28.g4 Bf7 29.Bf7 Rf7+/– 30.Ke2 g6 31.Ra2 Rc8 32.Rc1 Re7 33.Rb2 Rd8 34.Rd1 Rd6 35.Nb3 Rd1+/– 36.Kd1 Nd3 37.Rc2 Rd7 38.Ke2+– Nb4 39.Rd2 Rd2 40.Kd2 Kg7 41.Nc5 b6? 42.ab6 a5 43.b7 Nc6 44.Nd7 a4 45.Kc3 a3 46.b8Q Nb8 47.Nb8 Kf7 48.Kb3 Ke6 49.f4 g5 50.Ka3 f5 51.Nc6 h5 52.Nd4 Kf6 53.Nf5 hg4 54.hg4 (54...Ke6 55.Nd4 Kd6 56.f5+–) 1–0. Ruhle,Ernst Albrecht (1685) – Klee,Charlotte, Seefeld op, 1993.

5.c4 Ne4 6.Nc3 Nd6 7.cd5 ed5 8.bc6 bc6 9.Qa4 Be6 10.Nf3 Be7 11.d4 0–0 12.Bd3 Qc7 13.0–0 Nd7 14.Qc2 h6 15.Ba3 Nf6 16.Na4 Nde4 17.Be7 Qe7 18.Rfc1 Rfc8 19.Ne5 Bd7 20.f3 Ng5 21.Nc5 Ne6 22.Rab1 Nc5 23.Qc5 Qe6 24.Ba6 Rc7 25.Rb7 Rb7 26.Bb7 (26...Re8 27.Qa7+– (27.Bc6?! Rc8+/–)) 1–0. pcmvr (2760) – sportsmaniac (2260), net–chess.com, 2006.

5.bc6 Nc6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.bc6 Nc6).

5.d4 Qb6 6.a4 Bd7 7.c4 dc4 8.Bc4 cb5 9.ab5 Bb5 (9...Bb4 10.Bc3 Bb5 11.Bb4 Bc4 12.Bc5–/+) 10.Qb3+= Ba6 11.Qb6 ab6 12.Nf3 Bb4 13.Nbd2 0–0 14.Ke2 b5 15.Bd3 Nd5 16.Rhc1 Nd7 17.g3 (17.Ne4 N7b6 18.Ba3 Ba3 19.Ra3 b4+=) 17...N7b6 18.e4 Ne7 19.Bc3 Bc3 20.Rc3 b4 21.Rcc1 Na4 22.Ne5 (22.Ra4 Bd3 Double attack (22...Bd3 Decoy)) 22...f6 23.Ba6 (23.Nec4 Nc3 24.Ke3 f5+=) 23...Nc3–/+ (worse is 23...ba6 24.Ra4 fe5 25.Rb4 ed4 26.Rd4+=) 24.Kd3 ba6 (24...fe5?! 25.Bc4 ed4 26.Be6 Kh8 27.f4=) 25.Nec4 Rfd8 26.Nb3 Nc6 27.Ke3 Rac8 28.Nb6 Rc7 29.Na4 e5 30.d5 Nd4! 31.Nd4 ed4 32.Kd3 Rdc8 33.Nb6 Rb8 34.Nc4 (34.Na4 Ra7–/+) 34...b3 35.Nb2 (35.Ra6?? Na2 36.Ra2 ba2–+) 35...Rbc8 36.Ra6 Na4 37.Ra4 (37.Ra4 Rc3 Double attack (37...Rc1 Discovered attack); 37.Na4 Rc1 Discovered attack) 37...Rc1 38.Rb4 R8c2 39.Rb3 Rc3 (39...Rf2 40.Rb8 Kf7 41.Rb7 Ke8 42.Kd4 Rh2 43.Nc4+=) 40.Rc3= dc3 41.Nc4 c2 42.f4 Re1 43.Kc2 Re4 44.Kd3 Re1 45.Kd4 Kf8 46.Ne3 Kf7 47.Kd3 h5 48.Ke4 f5 49.Kd4 Kf6 50.d6 g6 51.Nc4 Rh1 52.h4 Rd1 53.Ke3 Rd5 54.Ke2 Rd4 55.Ne5 Rd6 56.Nc4 Re6 57.Kf2 Ke7 58.Kf1 Kd7 59.Ne5 Kd6 60.Ke2 Kd5 61.Kf2 Ra6 62.Nf7 Ra2 63.Ke3 Ra3 64.Kf2 Kd4 65.Nd6 Ra2 66.Kf3 Ra6 67.Nf7 Ra7 68.Ne5 Ra3 69.Kg2 Ke4 70.Kf2 Ra2 71.Kf1 Rc2 72.Kg1 Ke3 73.Kf1 Rf2 74.Kg1 Ke2 75.Ng6?! (75.Kh1 Kf1 76.Ng6–+) 75...Kf3 76.Ne7 Rg2 77.Kf1 Rb2 78.Kg1 Kg4 0–1. pierred (2845) – pcmvr, net–chess.com, 2016.

5.Be2 Bd7 6.bc6 Bc6 7.Bf6 Qf6 8.d4 Nd7 9.c4? (9.Nf3 Bd6+=) 9...Bc5?? (better is 9...dc4 10.Kf1 b5–+) 10.cd5+= Bd5 11.Nc3?? (better is 11.Bf3=) 11...Bb4–+ (11...Bg2?! 12.Bf3 Bb4 13.Rc1 Bh1 14.Bh1–+) 12.Qd3 (12.Rc1 Rc8 (12...Bg2?! 13.Bf3 Bh1 14.Bh1–+) 13.Kd2 Bg2–+) 12...Rc8 13.Rc1 Bc4 (better is 13...Bg2 14.Bf3 Bf3 15.Nf3 Qf3–+) 14.Qd2 Be2 (14...Qg5 15.Bf3 Qa5 16.Bb7–+) 15.Ke2 (15.Nge2!? 0–0 16.0–0=) 15...0–0 16.Nf3 Rc7 (16...e5 17.Ne4 Qa6 18.Qd3 Qa2 19.Ned2 ed4 20.Qd4 Qa6 21.Qd3 Qd3 22.Kd3 Nc5 23.Ke2–+) 17.g3? (17.Qb2!? Bc3 18.Rc3 Rc3 19.Qc3=) 17...Rfc8 18.Nh4?? (better is 18.Ne4 Qf3 19.Kf3 Bd2 20.Rc7 Rc7 21.Nd2=) 18...Bc3–+ 19.Rc3 (19.Qd3–+) 19...Rc3 20.Kf1 (20.Kd1 g5 21.f4 gh4–+) 20...Rc1 (better is 20...Rc2 21.Qe1 Rc1 22.Kg2 Re1 23.Re1–+) 21.Kg2 Rh1 22.Kh1 Qe7 23.a4 Qa3 24.a5 Qc1 25.Qc1 Rc1 26.Kg2 Kf8 27.Nf3 Ke7 28.Nd2 Ra1 29.Nb3 Ra3 30.Nd2 Kd6 31.Ne4?? Kc6 32.h3 Ra5 33.Kf3 Ra1 34.Kf4 a5 35.Nc3 b5 36.h4 b4 37.Ne4 b3 38.Nc5 Nc5 39.dc5 Kc5 40.g4 b2 41.f3 Rf1 42.e4 b1Q 43.h5 a4 44.Kg3 a3 45.Kf4 a2 46.Ke3 a1Q 47.Kf4 Qf6 48.Kg3 Rg1 49.Kf2 1–0. joaquimbage – kamentachev78, internet, 2013.

5.Nf3 a6 6.ba6 (6.bc6 Nc6 7.Be2 Bd6=+) 6...b6 (6...Na6 7.Be5=) 7.Ne5 (7.Nc3 Bd6=+) 7...Bd6=+ 8.f4 (8.Ng4 Ba6 9.Nf6 gf6=) 8...0–0 9.Be2 Ba6 10.0–0 Be2 11.Qe2 Qc7 12.d3 b5 13.Nd2 Ba3 14.Rab1 Be7 15.Rf3 Nbd7 16.Rh3? Ra2–+ 17.Ndf3 Rfa8 18.g4 Ne5–+ 19.Ne5 Nd7 20.g5 Rb2 21.Qh5?? Rb1–+ 22.Kg2 Nf8 23.Qf7 Kh8 24.Ng6 Ng6 25.Qg6 Kg8 26.Qe6 Kh8 27.g6 Bh4 28.Rh4 h6 29.f5 Rba1 30.f6 R1a7 31.f7 Qe7 32.Qh3? Qg5 33.Rg4 Qe5 34.d4 Qe6 35.Qf3 Rf8 36.Qf4 Rff7 37.gf7? Rf7–+ 38.Qg3 Qf5 39.Rf4 Qc2 40.Kh3 Rf4 (41.Qf4 Qe4–+) 0–1. Maciejewski,R – Wisniewski,M, corr Poland, 1996.

5.Nf3 Qb6 6.a4 a6 7.c4 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Qb3 Bd7 12.Bf6 gf6 13.Nc3 Na6 14.Bb5 Bb5 15.Qb5 Qb5 16.Nb5 Bb4 17.0–0 Ke7 18.d4 Rc8 19.g3 Rc2 20.Rb1 Kd7 21.h4 Kc6 22.Na7 Kb6 23.Nc8 Rc8 24.g4 Rc2 25.g5 f5 26.h5 Kc6 27.Ne5 Kd5 28.Nf7 b5 29.g6 hg6 30.hg6 Rc8 31.Ra1 Rg8 32.Ra6 Rg6 33.Kf1 Bc3 34.Ne5 Rg7 35.Ra8 b4 36.Rd8 Ke4 37.Ke2 Re7 38.f3 1–0. mihai740609 – sevtgin1, internet, 2014.

5.Nf3 c5 6.c4 b6 (6...a6 7.Qb3=) 7.Nc3 Bb7 (7...Be7 8.d4=) 8.cd5 (8.d4 cd4 9.Qd4 Bc5=) 8...Nd5 (8...ed5 9.Bd3=) 9.Bc4 (9.d4 Nd7=) 9...Nd7 (9...Bd6 10.d4=) 10.0–0+= N5f6 (10...Be7 11.d4+=) 11.d3= Bd6 (11...Be7 12.Qe2=) 12.e4 (12.Ne4 Ne4 13.de4 Qc7+=) 12...Rc8 (12...Ne5 13.Qe2=) 13.Ne2 (13.Qa4 Ra8=) 13...Bb8 (13...0–0 14.Qa4=) 14.Qd2 (14.Qc2 0–0=) 14...Qc7 (14...0–0 15.Rac1=) 15.a4+= 0–0 (15...Rd8 16.a5+=) 16.Qg5 (16.a5 Rfd8+=) 16...h6 (16...Rfd8 17.Rfc1+=) 17.Qh4 Rfe8 (17...Rcd8 18.a5+=) 18.Ng3 (better is 18.a5+=) 18...e5?? (better is 18...Qf4 19.Qf4 Bf4+=) 19.Nf5+– Nf8 (19...Kf8 20.Bc1 Re6 21.Ng5+–) 20.Nh6! gh6 Theme: Deflection from f6 21.Qf6 Qd6 (21...Qe7 22.Qh6 Qd6+–) 22.Qf7 Kh8 23.Qg8# 1–0. Fischer,Detlev – Zillich,Raimar, corr, 1986.

5.Nf3 Ne4 6.Be2 f6 7.0–0 Bd7 8.a4 cb5 9.ab5 a6 10.h3 Qb6 11.c4 (11.Bd4 Qd6=) 11...Bc5 (11...dc4!? 12.Qc2 Nd6 13.ba6 Na6+=) 12.cd5 ed5 13.Nc3 Nc3 14.Bc3 0–0 (14...Bb5!? 15.Rb1 Be2 16.Qe2 Qc7=) 15.d4+= Be7 16.Qb3 Be6 17.Rfb1 Nd7 (17...a5!?+=) 18.ba6+/– Qb3 19.Rb3 ba6 20.Ra6 Ra6 21.Ba6 Bf5 (better is 21...Ra8 22.Bb7 Ra3 23.Ra3 Ba3+/–) 22.Bb4?? (22.Bb7!? Be6+–) 22...Bb4?? (better is 22...Rb8 23.g4 Be4 24.Be7 Rb3=) 23.Rb4+– h6 (better is 23...Kf7+–) 24.Rb5 Be6 25.Rb1 (25.Bb7!? Kf7 26.Bd5 Bd5 27.Rd5 Ke6+–) 25...Bf5 26.Rc1 Kh7 27.Bc8 Kg6? (better is 27...Rd8+–) 28.Nh4 Kg5 29.Nf5 Nb6 30.Be6 Nc4 31.Ng3 Re8 32.Bd5 Nd2 33.Rc2 Nb1 34.Rc5 Na3 35.Bf7 Kh4 36.Be8 1–0. joaquimbage – poklekoj, internet, 2012.

5.Nf3 g6 6.a4 a6 7.Be2 Nbd7 8.0–0 ab5 9.ab5 Ra1 10.Ba1 Bg7 11.d4 0–0 12.Nbd2 cb5 13.Bb5 Ne4 14.Ne4 de4 15.Nd2 Nf6 16.c4 Qc7 17.f3 ef3 18.Qf3 Rd8 19.h3 Ne8 20.c5 f5 21.Bc3 Nd6 22.Bc4 (< 22.cd6 Qc3 23.Qe2 Rd6=+) 22...Nc4 23.Nc4 b6 24.Nb6 Bb7 25.Qf2 Be4 26.Rc1 Rb8 27.Qf4 e5 28.Qf2 (< 28.de5 Qc5 29.Nd7 Qa3=) 28...Qc6 29.Nc4 Ra8 30.Nd6 Bd5 31.Rb1 Qc7 32.Ra1 Ra1 33.Ba1 Qa5 34.Bb2 Bh6 35.Ne8 Qd8 36.e4 Be4 37.Nd6 Bd5 38.de5 Qb8 39.Kh2 Bf4 40.Qf4 Qb2 41.Qg3 Kf8 42.h4 (42.e6!? Qf6 43.Qe3 Qe6 44.Qd4+=) 42...Qd4+= 43.h5 Ba8 44.Qg5 (44.Nb5 Qc5 45.hg6 hg6 46.Nd6=) 44...Qe5= 45.Kh3 Bg2 46.Qg2 Qc5 47.Qd2 Qg1 48.h6 Ke7 49.Nc8 Ke8 50.Qe2 Kd7 51.Qe7 Kc8 52.Qh7 Qe3 53.Kg2 Qe2 54.Kg1 Qd1 55.Kf2 Qc2 56.Ke1 Qc3 57.Ke2 ½–½. marekt – average_at_chess, ChessWorld.net, 2003.

5.f4 cb5 6.Bb5 Bd7 7.Nc3 Bb5 8.Nb5 a6 9.Bf6 gf6 10.Nd4 Be7 (10...e5!? 11.Nf5 ef4+=) 11.Qh5+/– Qd7 12.Ngf3 Nc6 13.0–0 Nd4 14.Nd4 0–0–0 (better is 14...Rc8!?+/–) 15.Qf7+– Bc5 16.Qf6 Bd4 17.ed4 Rdf8 18.Qe5 Rhg8 19.Rf3 Rf5?? (19...b6+–) 20.Rc3 Kd8 21.Qb8 Ke7 22.Qg8 Rf8 (22...h6+–) 23.Qg5 Ke8 24.Re1 (24.Re1 h6 25.Qh6+–) 1–0. Fritz11 – jumbo, casual, 2013.

5.f4 Qb6 6.Nf3 Be7 7.a4= cb5 8.Bd4 Qc7 9.ab5 Bd7 10.Ra7+/– Ra7 11.b6 (11...Qc8 12.ba7+/–; < 11.Ba7 b6 12.Bb8 Qb8+=) 1–0. pcmvr (2735) – robertochess (2195), net–chess.com, 2006.

5.f4 Bd7 6.bc6 Nc6 7.Nf3 Bd6 8.g4 Ng4 9.Rg1 Nh2–+ 10.Rg7 Nf3 11.Qf3–/+ d4 12.Rg5 h6 13.Rh5 Qf6 14.Bb5 Rg8 15.Kf1?? Qg6–+ 16.Rh1 0–0–0 17.Bd3 f5 18.Na3 Ne5! 19.Qf2 Ng4 20.Qe2 Bc6 (21.e4 fe4–+) 0–1. Kuhlmann,Antonius Egidius J – Oskam,GCA, corr NED–chT, 1972.

5.f4 Be7 6.a4 a6 7.Nf3 ab5 8.ab5 Ra1 9.Ba1 Qa5 10.Bc3 Qb6 11.Be2 Nbd7 12.0–0 0–0 13.Bd4 c5 14.Bb2 c4 15.Nd4 Nc5 16.d3 cd3 17.cd3 Bd7 18.Nc3 Ra8 19.Qe1 Na4 20.Qa1 Qa5 21.Na4 Qa4 22.g4 Qa1 23.Ra1 Ra1 24.Ba1 Ne8 25.Kf2 Nc7 26.b6 Nb5 (26...Na8!?=) 27.Nb5 Bb5 28.Bd4 Bd6 29.g5 g6 30.Be5 Be5 31.fe5 Kf8 32.Kf3 (32.Ke1 Ke7+=) 32...Ke7= 33.h4 Kd7 34.Kf2 Kc6 35.Ke1 Kb6 36.Kd2 Kc5 37.Kc3 Ba6 38.h5 ½–½. Trkn – guest559, ICC, 2004.

5.a4

5.a4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.a4 d5 5.e3).

5.a4 a6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 c6).

5.a4 Bd7 6.Nf3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd7 5.Nf3 c6 6.a4).

5.a4 Be7 6.Nf3 0–0 7.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 0–0 6.Be2 c6 7.a4).

5.c4 Bb4

6.a3 Ba5 7.Nf3 0–0 8.Be2 a6 9.a4 dc4 10.Bc4 ab5 11.ab5 cb5 12.Bb5 b6 13.0–0 Ba6 14.Na3 Bb5 15.Nb5 Nc6 16.d4 Ne4? (better is 16...Na7 17.Na7 Ra7=) 17.Qc2+– Qd5 18.Nc7 Nb4 19.Qe2 (19.Nd5?! Nc2 20.Ne7 Kh8=) 19...Qh5 20.Na8 Ra8 21.Ba3 Rc8? (better is 21...Nc3 22.Qd2 Nbd5+–) 22.Bb4 Bb4 23.Qa6 Rf8 24.Qb6 Bd6 25.Qc6 Qg4 26.h3 Qf5 27.Nh4 Qd5 28.Qd5 ed5 29.Nf5 Bb4 30.Rfb1 Bd2 (30...g6 31.Rb4 gf5 32.Ra5+–) 31.Ne7 Kh8 32.Nd5 h5 (32...h6 33.Ra7+–) 33.Rb7 Rd8 34.Nf4 Rc8 (34...Nd6 35.Rc7+–) 35.Nh5 (better is 35.Rf7 h4 36.Raa7+–) 35...Rc2 (35...g6 36.Nf4 g5+–) 36.Rf7 (better is 36.Ra8 Kh7 37.Rf7 Rc1 38.Kh2 Rb1 39.Rg7 Kh6 40.Rh8) 36...Bc3 (36...Rc8+–) 37.Ra8 Kh7 38.Rg7 Kh6 39.Rh8 1–0. algernon (2330) – tomy (2355), net–chess.com, 2013.

6.a4 0–0 7.Nf3 Nbd7 8.Bd3 h6 9.0–0 Bd6 10.Qc2 e5 11.Bf5 e4 12.Nd4 c5 13.Ne2 Nb6 14.Bc8 Rc8 (worse is 14...Nc8 15.cd5 Re8 16.Bf6 Qf6 17.Nbc3+/–) 15.cd5 Nbd5 16.Bc3 Re8 17.g3 b6 18.Na3 Ng4 19.Nc4 Nb4 20.Qb3 Nd3 21.f3 ef3 22.Nd6? (22.Rf3 Be5 23.Rf7+/–) 22...Qd6 23.Rf3 c4 24.Qa2 Nge5 25.Be5 Ne5 26.Rf4 g5 27.Rf5 Qd3 28.Nc3?? (better is 28.Nd4–/+) 28...Qf5–+ 29.Rf1 Nf3 30.Kg2 g4 31.Rh1 Qd3 32.Rd1 h5 33.e4 h4 34.Qb2 h3 35.Kh1 Nd4 36.Kg1 Ne2 37.Kf2 Qf3 38.Ke1 Nc3 (38...Nc3 39.Qc3 Re4 40.Qe3 c3 41.Qe4 Qe4 42.Kf2 Qf3 43.Ke1 Re8; 38...Qh1 39.Ke2 Re4 40.Ne4 Qe4 41.Kf2 Qf3 42.Ke1 Re8 43.Qe5 Re5) 0–1. Becker,Joachim – Arndt,Theodor, Sparkassen Open, Nettetal GER, 2010.

6.Nf3 0–0 7.a4 Re8 (7...Nbd7 8.Ne5=+) 8.Be2 a6 9.Nc3 Ne4 (9...e5 10.0–0=+) 10.Qc2 Nc3 11.Bc3 Bc3 12.Qc3 c5 (12...dc4 13.Bc4 ab5 14.ab5 Ra1 15.Qa1=) 13.0–0 b6 14.d4 Nd7 15.Rfd1 Bb7 (15...Qf6 16.Rac1=) 16.Ne5 (16.cd5!? ed5 17.dc5 bc5 18.ba6+/–) 16...Ne5= 17.de5 ab5 18.ab5 (18...Ra1 19.Ra1 dc4 20.f3=) =. Geisensetter,Kurt – Repol,A, corr ICCF–Cup8/9 V197, 1990.

5.d4 cb5

6.Bb5 Bd7 7.Bd7 Nbd7 8.Nf3 Qb6 9.Bc1 Qa6 10.c3 Rc8 11.Qe2 Qe2 12.Ke2 Ne4 13.Bd2 Nb6 14.Rc1 Be7 15.Ne5 f6 16.Nd3 Na4 17.f3 Nd6 18.Na3 a6 19.Nf4 Kf7 20.Rab1 b5 21.Kd3 g5 22.Ne2 h5 23.Nc2 Nc4 24.e4? (better is 24.Na1–+) 24...Nab2 25.Rb2 Nb2 26.Ke3 f5 27.ef5 ef5 28.Rb1 Nc4 29.Kd3 f4 30.Nb4 Bb4 31.Rb4 Rhe8 32.Nc1 (32.h4 Nd2 33.Kd2–+) 32...Re6 33.Nb3 Rce8 (33...Rce8 34.Nc1 h4–+) 0–1. Vermaas,Fred – Recio,Luis, IECG, 2004.

6.Bb5 Bd7 7.Be2 a6 8.c4 dc4 9.Bc4 b5 10.Be2 Nc6 11.Nf3 Be7 12.0–0 0–0 13.Nbd2 Nd5 14.a4 b4 15.a5 (15.Rc1!?=) 15...Na5+= 16.Nc4 (16.Bd3!?+=) 16...Nc4–/+ 17.Bc4 a5 18.Bd5 ed5 19.Ne5 Be6 (19...Bb5 20.Re1–+) 20.h3 Bf6 21.Nc6 Qc7 22.Rc1 Qb7 23.Qa4 Bd7 24.Rc5 Rfc8 25.Ne7?? (better is 25.Na5 Ba4 26.Nb7–/+) 25...Be7–+ 26.Rc8 Rc8 27.Qa5 (27.Qa1 a4–+) 27...Ra8 28.Qa8 Qa8 29.Ra1 Qb7 30.Rf1 h6 31.Ra1 b3 32.Rc1 Bb5 33.g3 Bc4 34.Kg2 Qa6 35.Ra1 Qb5 36.Ra8 Kh7 37.Ra7 Qb4 38.Ba3 Qa3 39.Ra3 Ba3 40.h4 b2 0–1. joaquimbage – guiloe, 2012.

6.Bb5 Bd7 7.Be2 Be7 8.c4 Bc6 9.cd5 Bd5 10.Nf3 Nc6 11.0–0 0–0 12.h3 h6 13.Nc3 a6 14.a4 Nb4 15.Ba3 a5 16.Nd5 Nfd5 17.Bb4 Nb4 18.Bb5 b6 (18...Rc8!?=) 19.Ne5+= Bf6? (19...Rc8 20.Nd7 Re8 21.Rc1+/–) 20.Nc6 (better is 20.Nd7+–) 20...Nc6+= 21.Bc6 Rc8 22.Bb5 Rc7 23.Rc1 Qc8 24.Qd2 Qb8 25.Rc6 Rfc8 26.Rfc1 Rc6 27.Rc6 Rc6 28.Bc6 Qc7 29.Bb5 Be7 30.Qd1 Bb4 31.Qf3 g6 32.Qf4 (better is 32.g3!?+=) 32...Qf4+= 33.ef4 Bc3 34.d5 ed5 35.g3 d4 36.Kf1 Kg7 37.Ke2 Kf6 38.Kf3 Ke6 39.Ke4 f5 40.Kf3 Kd5 41.g4 Bb4 42.h4? White prepares the advance g5 (42.g5 Ke6 43.Be8 d3=) 42...h5 (better is 42...fg4!? 43.Kg4 Be7–+) 43.g5+= Kc5 (better is 43...Ke6!?+=) 44.Ke2 Bc3 45.Kd3 Kd5 (45...Be1 46.Be8+=) 46.f3 (better is 46.Be8!? Be1 47.Bf7 Kc5 48.Ke2+/–) 46...Be1= 47.Bc4 Kc5 48.Bf7 Bh4 49.Bg6 Bg3 50.Bf5 Bf4 51.g6 Be5 52.f4 Bg7 (52...Bf4?? 53.g7+–) 53.Bd7 Kb4 54.Bb5 Kc5 55.Ke4 Kd6 56.Kf5 Ke7 (better is 56...h4!? 57.Kg4 Bf6=) 57.Kg5+/– Ke6 58.Kh5?? (58.Bc4 Ke7+/–) 58...Kf6?? (better is 58...Kf5–/+) 59.Bd3+/– Bf8 60.f5 Bg7 61.Kg4+/– Ke5 62.Kf3 Kd5 63.Kf4 Kc5?? 64.Kg5+– Kd6 65.f6 Bf8 66.g7 Bg7 67.fg7 Ke6 68.g8Q Ke5 69.Qb8 1–0. joaquimbage – daanro, 2012.

5.d4 Be7

6.bc6 bc6 (6...Nc6 7.Nd2–/+) 7.Bd3 Nbd7 8.Nf3 Rb8 9.0–0?? (better is 9.Bc3–/+) 9...Rb2–+ 10.Nc3 Qa5 11.Qc1 (11.Ne2–+) 11...Qc3 12.h3 (12.Qd2 Qa3 13.Rfb1 c5 14.dc5 Nc5 15.Bb5 Bd7 16.Bd7 Nfd7–+) 12...c5 13.dc5 Nc5 14.Rb1 Rb1 15.Qb1 0–0 16.Ne5 (16.Qe1 Qa3 17.Qc1 Qa2 18.Qa1 Qa1 19.Ra1–+) 16...Qe5 17.Re1 Nfe4 18.Be4 Ne4 19.f4 Qc3 0–1. nerob (2055) – pierred (2845), net–chess.com, 2015.

6.Nf3 0–0 7.a4 Nbd7 8.c4 a6 9.c5 ab5 10.ab5 Ra1 11.Ba1 Ne4 12.b6 f5 13.Bd3 Ndf6 14.Nc3 Qe8 15.0–0 Qh5 16.Ne5 Qh6 17.Ne4 fe4 18.Be2 Nd7 19.Ng4 Qg6 20.f3 ef3 21.Rf3 Nf6 22.Ne5+= Qe8 23.Bd3 Qd8 24.Rf4 Re8 25.Bc3 Nd7?? 26.Nf7 Bg5 27.Nd8 Bf4 28.Bh7! Kh8 29.Nf7 Kh7 30.Qh5 Bh6 31.Ng5 Kg8 32.Qf7 Kh8 33.Qe8 (33...Nf8 34.Qf8#) 1–0. Woschkat,Karl_Heinz – Ullmann,Gregory, CiF, 1987.

6.Nf3 Bd7 7.c4 0–0 8.c5 (8.a4!?+=) 8...cb5–/+ 9.Nc3 a6 10.a4 ba4 11.Na4 Nc6 12.Nb6 Rb8 13.Be2 Qc7 14.Bc3 Ne4 15.Ba5 Na5 16.Ra5 Bc6 17.Ne5 Nc3 18.Qd2 Ne2 19.Qe2 (19.Nc6 Qc6 20.Ke2 Qc7+=) 19...Bf6 (19...Bc5!? 20.Rc5 Qb6–+) 20.f4 Be5 21.fe5 f6 22.Qh5 (22.Qg4 Rbe8 23.Rf1 fe5 24.Rf8 Kf8–/+) 22...g6 (22...fe5 23.Qe5 Qe5 24.de5–+) 23.Qh6? (better is 23.Qh3 fe5 24.Qe6 Kg7 25.Qe5 Qe5 26.de5–/+) 23...fe5–+ 24.h4? (24.Qh4 ed4 25.Qd4 e5–+) 24...Rf5 (24...ed4 25.Qg5 Rf5 26.Qg4 de3 27.Rh3–+) 25.h5 gh5 (25...ed4 26.hg6 Qg3 27.Kd1 Qg6 28.Qg6 hg6 29.ed4–+) 26.Rh5 (26.Qe6 Qf7 27.Qf7 Kf7 28.e4 de4 29.d5–+) 26...Rh5–+ 27.Qh5 Qf7 (better is 27...ed4!? 28.Qg4 Qg7 29.Qg7 Kg7 30.ed4 Rf8–+) 28.Qe5–/+ Rf8 29.Qg3 Kh8 30.Qe5 Qf6 31.Qf6 Rf6 32.Nc8 Kg7 33.Ne7? (better is 33.Nd6!?+=) 33...Bb5–+ 34.c6? (better is 34.Nc8 Rf1 35.Kd2 Rf2 36.Kd1 Rg2 37.Nd6–+) 34...bc6 35.Nc6 Bc6 36.Ra6 Bb5 37.Ra7 Kg6 38.Kd2 Rf2 39.Kc3 Rg2 40.Kb4 (40.Re7 Rf2–+) 40...Bc4 41.Kc5 (41.Re7 Re2 42.Re6 Kg5–+) 41...Re2 42.Kd6 Re3 43.Re7 h5 44.Re6 (44.Re8–+) 44...Re6 45.Ke6 h4 0–1. captainevans – pomiarowa, 2013.

5.Be5 Nbd7

6.Bg3 cb5 7.Bb5 a6 8.Bd7 Bd7 9.Nf3 b5 10.0–0 Be7 11.d4 0–0 12.Nbd2 Rc8 13.Nb3 Qb6 14.Ne5 Rfe8 15.Nd7 Nd7 16.Nd2 a5 17.Qg4 Nf6 18.Qh3 Rc2 19.Nf3 h6 20.Be5 b4 21.Qg3 a4 22.h4 b3 23.ab3 ab3 24.Rab1 b2 25.Bf6 Bf6 26.Ne5 Be5 27.de5 Rec8 28.Qf4 Rc1 29.g4 Rb1 30.Rb1 Rc1 31.Kg2 Rb1 32.g5 hg5 33.Qg5 Rc1 34.h5 b1Q 35.h6 Qh7 36.e4 Rc2 37.ed5 Qf2 38.Kh3 Qf3 0–1. wojtekkk – raychen, internet, 2014.

6.Bg3 e5 7.Ne2 Qa5 8.bc6 bc6 9.Nec3 Bb4 10.Bd3 e4 11.Be2 0–0! 12.0–0! Re8 13.a3 Be7 14.d3 Ba6 15.de4 Be2 16.Qe2 de4 17.Qc4 c5 18.Ne4 Ne4 19.Qe4 Bf6 20.Qd5 Nb6 21.Qb3 Ba1 22.c3 c4 23.Qc2 Rab8 24.Bb8 Rb8 25.h3 Na4 26.Qe4 Nc3 27.Nc3 Bc3 28.Qc4 Rd8 29.Rc1 Bb2 30.Rc2 Qa3 31.Qc8 Qa1 32.Kh2 Be5 33.g3 Qd1 34.Rc1 Qd2 35.Rc2 Qd6 36.Rc6 Qb8 37.Qa6 Bf6 38.h4 h5 39.Qe2 Bh4 40.Qh5 Bf6 41.Qg4 Rd6 42.Rc8 Qc8 43.Qc8 Kh7 44.Qh3 Kg8 45.Qc8 Rd8 46.Qc7 a6 47.Qa7 Rd2 48.Kg2 Ra2 49.Qb8 Kh7 50.Qb3 Rb2 51.Qd3 g6 52.Qd7 Kg7 53.Qe8 a5 54.e4 Rb5 55.f4 Rb2 56.Kh3 Bd4 57.e5 a4 0–1. wojtekkk – danielmafra, internet, 2014.

5.Nf3 Bd7

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd7 5.Nf3 c6).

6.bc6 Nc6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.bc6 Nc6 6.Nf3 Bd7).

5.Nf3 Nbd7

6.Nc3 e5 =.

6.c4 cb5 7.cb5 b6 8.Ne5 Ne5 9.Be5 Bb7 10.Qf3 Be7 11.Be2 0–0 12.0–0 Ne4 13.d3 Ng5 14.Qg3 Bf6 15.Nd2 Be5 16.Qe5 f6 17.Qg3 Rc8 18.Bg4 Rc2 19.Nb3 e5 20.f4 d4 21.e4 Nf7 22.Be6+= a6? 23.fe5+– Kh8 24.Rac1 Qc7?? 25.Rc2+– Qc2 26.Nd4 Qc3? 27.Nf5+– (27...Ng5 28.Bb3 Be4 29.de4 Qc5 30.Qe3 Qe5 31.ba6 Ne4 32.Qb6+–) 1–0. Wall,Bill – Walthour,John, Dayton, OH, 1983.

6.c4 Bd6 7.Nc3 =.

6.Be2 Bd6 7.0–0 0–0 8.a4 A) 8...Qc7 9.d4 (9.Nc3 e5 10.bc6 bc6 11.Ba3 Ba3 12.Ra3 Qd6 13.Ra2 d4+=) 9...Ng4 10.h3 Nh2 11.Nh2 Bh2 12.Kh1 Bd6 13.c4 dc4=; B) 8...e5 9.Nh4 (9.Nc3 Qc7 10.bc6 bc6 11.Ba3 d4 12.Bd6 Qd6 13.ed4 ed4+=) 9...Nb8 10.Nf3 Qc7 11.Ba3 c5 12.d4 Nbd7 13.a5 e4+=.

6.Be2 Bd6 7.0–0 0–0 8.Nc3 A) 8...c5 9.d4 (9.d3 e5 10.a4 Qc7 11.Nd2 a5 12.Bf3 Nb6 13.Ne2 Be6+=) 9...Qc7 10.dc5 Nc5 11.a4 Nce4 12.Qd3 Bd7 13.Rfd1 Rfc8+=; B) 8...e5 9.a4 (9.bc6 bc6 10.Rb1 Qc7 11.h3 Rb8 12.a3 Re8 13.Re1 Qa5+=) 9...Qc7 10.bc6 bc6 11.Ba3 d4 12.Bd6 Qd6 13.ed4 ed4+=.

6.Be2 Bd6 7.0–0 0–0 8.c4 A) 8...e5 9.cd5 (9.c5 Nc5 10.Be5 cb5 11.d4 Nce4 12.Bb5 Bg4 13.Bd6 Qd6+=) 9...cd5 10.Nc3 a6 11.Rc1 Qe7 12.Qa4 Qe6 13.d4 e4=; B) 8...cb5 9.cb5 (9.cd5 Nd5 10.Bb5 a6 11.Bc4 N7f6 12.Be5 Be5 13.Ne5 b5+=) 9...e5 10.Nc3 Nb6 11.d4 e4 12.Ne5 Be6 13.Rc1 Qb8+=.

6.Be2 Bd6 7.0–0 0–0 8.d4 Ne4 (8...cb5 9.Bb5 (9.c3 a6 10.Ba3 Ba3 11.Na3 Qc7 12.Qd3 b6 13.Rab1 Qd6–/+) 9...a6 10.Bd3 Qc7 11.a4 Ng4 12.h3 Nh2 13.Nh2 Bh2=; 8...a6 9.c4 (9.bc6 bc6 10.Ba3 c5 11.c4 Bb7 12.Nbd2 Qa5 13.Bb2 Rfd8=) 9...ab5 10.cb5 Re8 11.a4 cb5 12.Bb5 b6 13.Qd3 Qe7+=) 9.Nbd2 (9.a4 Qf6 10.Nbd2 Rd8 11.Bd3 Qf5 12.Ba3 c5 13.a5 a6+=; 9.bc6 bc6 10.Nbd2 Rb8 11.Rb1 Nd2 12.Qd2 Nf6 13.c4 Ba6=) 9...f5 (9...cb5 10.Bb5 Qb6 11.c4= a6 12.Bd7 Bd7 13.Qb3 Qb3=) 10.Ne5 (10.c4 cb5 (10...Qf6= 11.Qb3 Qg6 12.Ba3 Ba3 13.Qa3 cb5+=) 11.c5 Bc7 12.Bb5 a6 13.Bd3 Qf6+=) 10...Be5 (10...cb5 11.Ne4 fe4 12.Bb5+= a6 13.Bd7 Bd7+=) 11.de5= Qc7 (11...cb5 12.Ne4 fe4 13.Bb5 Rf5=) 12.f4 (12.bc6 bc6 13.f4 Ndc5=) 12...cb5 13.Ne4 (13.Bb5 Qb6–/+ (13...Qc5 14.Ne4 Qb5+=)) 13...fe4 14.Bd4 (14.Bb5 Qc5 15.a4 Qe3 16.Rf2 Qb6= (16...Rf4? 17.Bd4 Qf2 18.Bf2+–)) 14...a6+= 15.g4 (15.a4 ba4 16.Ra4 Nc5+=) 15...Nb8 16.h4 (16.Rb1 Rf7–/+) 16...Nc6 17.Bc5 Rf7 18.Bd6 Qb6 19.Qd2 Qd8 20.Qe1 Bd7 21.Kg2 Rc8 22.h5 Na5 23.Rc1 Nc4 24.Bc4 Rc4 (worse is 24...dc4 25.Rd1+=) 25.Qg3 Qc8 26.Rf2 Qd8 27.Qh3 (27.Rff1 b4 28.g5–+) 27...Rc3 28.Bb4 Rc4 29.Bd6 Rc3 30.Bb4 Rc6 31.a3 a5 32.Bd6 Rc3 33.Qh1? (better is 33.Rd1–/+) 33...Re3–+ 0–1. towa (1835) – lucdelarose (1755),gameknot.com, 2012.

5.Nf3 Be7

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6).

6.c4 0–0 7.a4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4).

6.c4 0–0 7.a4 a6 8.Nc3 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 a6 8.Nc3).

5.c4 a5

6.a4 Qb6 7.Nc3 (7.Bf6 gf6 8.cd5 cd5+=) 7...dc4 (7...e5 8.d4 ed4 9.ed4=+) 8.Bc4 Bd7 9.Nge2 Bb4 10.0–0 0–0 11.Rb1 Nd5 12.bc6+= bc6 13.h3 Na6 14.Nd5 ed5 15.Bd3+= c5 16.Nf4 Be6 17.Qh5+= f5 18.Qg5 Ra7 19.Nh5 g6?? 20.Nf6+– (20…Kf7 21.Nh7+–) 1–0. Schaefer,Friedhelm – Bernwald,Alexander, RH–op Mainz, 1996.

6.a4 Nbd7 7.f4 Bc5 8.Nf3 0–0 9.d4 Bb4 10.Nc3 dc4 11.Bc4 Nd5 12.Bd5 ed5 13.0–0 Nf6 14.Ne5 c5 15.Qc2 cd4 16.ed4 Qb6 17.Rad1 g6 18.Qb3 Be6 19.Ne2 Rac8 20.Rc1 Ne4 21.Rfd1 Nd2 22.Qd3 f6 23.Rc8 Rc8 24.Nf3 Nc4 25.Bc3 Bf5 26.Qf5 gf5 27.Nh4 Bc3 28.Nc3 Ne3 29.Nd5 Nd5 30.Nf5 0–1. lllllll21 – roberttal, internet, 2014.

6.a4 Be7 7.Nf3 =.

6.Qc2 Be7 7.Nf3 0–0 8.Ng5 Nbd7 9.Nc3 h6 10.h4 (10.Nf3=) 10...Nb6 (10...a4 11.Nf3 a3 12.Bc1+=) 11.cd5 (better is 11.Nd5 ed5 12.Bf6+=) 11...Nbd5?? (11...ed5 12.bc6 bc6+= (12...hg5? 13.hg5 g6 14.c7+–)) 12.Nd5+– cd5 13.Bf6 Bf6 (13...g6 14.Be7 Qe7+–) 14.Qh7 1–0. combijack (1840) – c0sta_galapago (1700), gameknot.com, 2013.

6.cd5 cd5 7.Nf3 b6 8.Be2 Bb7 9.0–0 Be7 10.a4 Nbd7 11.Ba3 0–0 12.Be7 Qe7 13.d3 e5 14.Nbd2 h6 15.Rc1 Rac8 16.Rc8 Rc8 17.Qa1 e4 18.Nd4 ed3 19.Bd3 Ne5 20.Bf5 Rc7 21.Rc1 Nc4 22.N2f3 g6 23.Bd3 Kh7 24.h3 Bc8 25.Nc6 Qd6 26.Bc4 dc4 27.Rc4 Bd7 28.Rd4 Qe6 29.Nfe5 Bc6 30.Nc6 Ne4 31.Rd8 f6 32.Qd4 Rf7 33.Rd5 Nc5 34.Nd8 1–0. ejdrzej (1660) – hunter31 (1645), internet, 2013.

6.Nf3 dc4 7.Bc4 Be7 8.Nc3 0–0 9.0–0 Qb6 10.a4 cb5 11.ab5 Nbd7 12.d4 Bb4 13.Qb3 Qd6 14.Ba3 Ba3 15.Qa3 Qa3 16.Ra3 Nb6 17.Be2 Bd7 18.Ne5 Rfc8 19.Nd7 (19.Rfa1 Ra7+=) 19...Nfd7= 20.Bf3 Rc7 21.Na4 Nc4?? (better is 21...Ra7=) 22.Rc3+– Rac8 23.Rfc1 b6 24.Bc6 Nd6 25.Bd7 Rc3 26.Rc3 Rc3 27.Nc3 Kf8 28.Na4 Ke7 29.Bc6 (29.Nb6?! a4 30.Be6 Ke6 31.Na4 Nb5+–) 29...Nc4 30.Kf1 e5 (30...Kd6 31.Ke2 Kc7 32.Kd3+–) 31.de5 (31.Ke2 ed4 32.ed4 Kd8+–) 31...Ke6 (31...Ne5 32.Nb6 Kd6 33.Ke2+–) 32.Ke2 (32.f4 Ne3 33.Ke2 Nd5+–) 32...Ke5 (32...Ne5 33.Nb6 Kd6 34.Be8+–) 33.Kd3 Nd6 34.Nb6 Ke6 35.Nc4 Nc8 1–0. druhynejhorsi (1845) – bauds (1900), internet, 2012.

6.Nf3 Bd7 7.a4 Bd6 8.d3 0–0 9.Be2 c5 (9...dc4!? 10.dc4 Qe7=) 10.Nbd2 b6 11.0–0 Qc7 12.h3 e5 13.d4 e4 14.Ne5 Be6 15.dc5 Be5 (better is 15...Bc5!? 16.cd5 Bd5+=) 16.cb6+/– Qd6 17.c5! Qc5 18.Be5 Qb6 19.Bf6 gf6 20.Nb3 Nd7 21.Rc1 Rac8 22.Qd4 Kg7 23.f3 Qd4 24.Nd4 ef3 25.Bf3 Nb6 26.Ne6 (better is 26.Rc6 Rc6 27.bc6+–) 26...fe6= 27.Rc6 (better is 27.g3!?=) 27...Rc6–/+ 28.bc6 Rc8 (worse is 28...Na4 29.Ra1 Nb6 30.Ra5=) 29.Rc1 Na4 30.c7 Kf7 (better is 30...Nb6!?+=) 31.Be2+= Nb6 32.Ba6 Ke7 (32...Rg8!?+=) 33.Bc8+/– Nc8 34.Ra1 Kd7 35.Ra5 Kc7 36.Ra6 Kd7 37.Kf2 h5 38.Kg3 (38.Ra4 Nd6+/–) 38...Nd6 39.Ra7 Kc6 40.Kh4 (40.Rh7!?+/–) 40...Nf5+= 41.Kh5 Ne3 42.g4 (better is 42.Ra6!? Kc5 43.Re6+–) 42...d4= 43.g5 fg5 44.Kg5 d3 45.Ra2 (45.Ra3 d2 46.Rc3 Kb5=) 45...Kd5 (45...Nc4 46.Ra1 e5 47.h4=) 46.h4 (46.Ra3 Kd4 47.Rd3 Kd3 48.Kf6=) 46...Nf5 (46...Nc2 47.Ra7 Ke4–+) 47.h5+= Kd4 48.h6 Nh6 49.Kh6 e5 50.Kg5 e4?? (better is 50...Ke3=) 51.Kf4+– e3 52.Ra4 Kc3 53.Ke3 d2 54.Ra1 Kc2 55.Ke2 Kb2 56.Rd1 Kc2 57.Rd2 Kc3 58.Ke3 Kc4 59.Rd1 Kc3 60.Rc1 Kb2 61.Kd2 Kb3+– 62.Rc2 Kb4 63.Kd3 Kb3 ½–½. druhynejhorsi (1730) – nyeki (1850), internet, 2012.

6.Nf3 g6 7.Na3 (7.Nc3 Bg7+=) 7...Bg7 8.Be2 0–0 (8...dc4 9.Bc4 0–0 10.d4+=) 9.0–0 Bd7 (9...dc4 10.Bc4 b6 11.d4+=) 10.Qb3 (10.d4 dc4 11.bc6 Bc6 12.Nc4 Ne4+=) 10...dc4 (10...a4 11.Qb4=) 11.Qc4+= cb5 12.Nb5 White gets in control. 12...Nc6 (12...Bc6 13.Ba3 Re8 14.d4+=) 13.Rac1 Rc8 (13...Ne7 14.Be5+=) 14.Qb3 (14.Nd6 Ne5 15.Qh4 Nf3 16.Bf3 Rc1 17.Bc1 b5+=) 14...b6 (14...Qe7 15.d4+=) 15.Ba3 Nb4 (15...Ne7 16.Rc8 Bc8 17.Nd6+/–) 16.Bb4 Rc1 (16...ab4 17.Qb4 Nd5 18.Qb3+/–) 17.Rc1 Bb5 (better is 17...ab4!? 18.Qb4 Qa8+/–) 18.Bf8+– Be2 19.Bg7 Kg7 20.d3 (20.Nd4 Ba6+–) 20...Qd3 (20...Bf3 21.gf3 Nd5 22.Qb2 Nf6 23.Rc3+–) 21.Qb6 (21.Qd3 Bd3 22.Ne5 Bb5+–) 21...Qa3 (21...Bf3 22.gf3 Qd5 23.Qc6 Qa2 24.Qd6+/–) 22.Qb1 (22.Qc5 Qa2 23.Ne5 Qb2+–) 22...Bd3? (better is 22...Bf3!? 23.gf3 Qd6+/–) 23.Qa1+– Kh6?? (23...Bb5+–) 24.Ne5 (24.Rc3 Qd6 25.Qd1 Qd5 26.Qd3 Qa2+–) 24...Kg7 (24...Bf5 25.Nf7 Kg7+–) 25.Rc3 (25.Nd3?! Qd3 26.a4 Qd5+–) 25...Qd6 26.Nd3 (26.Rd3 Qe7+–) 26...Kh6 (26...e5 27.Nc5+–) 27.Nf4 (27.e4 Ne4 28.Ne5 Kg7+–) 27...Qe5 (27...e5 28.Nd3+–) 28.Rc1 (28.Qc1 Ne4 29.Rc4 Kg7+–) 28...Qf5 (28...Qa1 29.Ra1 g5 30.Nd3+–) 29.Qd4 (29.Nd3 Qd3 30.Qf6 Qd2+–) 29...Ne4 (29...e5 30.Qc4 ef4 31.Qf7 g5+–) 30.f3 Nf6 (30...e5 31.Qe4 Qe4 32.fe4 ef4 33.ef4+–) 31.Ne2 (better is 31.Qd8!? Nh5 32.Nh5 gh5+–) 31...Qb5 (31...Kg7 32.Rc8 Qb1 33.Nc1+–) 32.Qf6 Qe2 33.Qh4 (33.Qf4 Kg7 34.Qd4 Kh6+–) 33...Kg7 34.Qf2 (34.Qd4!? Kh6 35.h4 e5 36.Qe5 Qd2 37.Qf4 Kg7+–) 34...Qd3 (34...Qb5 35.Qd2+–) 35.Rc2 (better is 35.Qb2 Kh6 36.Qd4 Qd4 37.ed4+–) 35...Qd1= ½–½. Kreuzer,Uwe – Glaub, tt Mannheim, 1979.

6.a4 Bb4

7.Nf3 0–0 8.cd5 ed5 9.Be2 Re8 10.0–0 c5 11.Bf6 Qf6 12.d4 c4 13.Qc2 Bf5 14.Qc1 Nd7 15.Nc3 Nb6 16.h3 Rad8 17.Ne5 Re5 18.de5 Qe5 19.Nd1 d4 20.ed4 Qe2 21.Ne3 Bd3 22.Qd1 Rd4 23.Qe2 Be2 24.Nc2 Rd2 25.Rfc1 Nd5 26.Ne3 Ne3 27.fe3 c3 28.Kh2 c2 29.Ra2 Bd3 30.Kg3 f5 31.Rb2 Bd6 32.Kh4 Rg2 33.Rb3 Be7 34.Kh5 0–1. emeryt85 – gott2 (1655), internet, 2013.

7.Nf3 0–0 8.Be2 Nbd7 9.0–0 Re8 10.d4 Qc7 11.c5 e5 12.b6 Qb8 13.h3 e4 (13...ed4!? 14.ed4 Qf4=) 14.Nfd2+= Kh8 15.Na3 Ng8 16.Nc2 Bd2 17.Qd2 f5 18.Bc3 f4 19.ef4 Ngf6 20.Ba5 1–0. Hal1958 – Loulou, playchess.de, 2004.

6.a4 c5

7.d4 dc4 8.Bc4 cd4 9.Qd4 Bb4 10.Nd2 Qd4 11.Bd4 Ne4 =.

7.Nf3 b6 8.Be2 Bb7 9.0–0 dc4 10.Bc4 Be7 11.d3 Nbd7 12.Ne5 Ne5 13.Be5 0–0 14.f4 Qd7 15.Qb3 (15.Nc3 Rad8=) 15...Rad8 16.h3 Nd5 17.e4 White intends f5 17...Nb4 (17...Ne3 18.Re1 Nc4 19.dc4+=) 18.f5= ef5 (18...Nd3?? 19.fe6 Ne5 20.ed7 Rd7 21.Nc3+–) 19.Rf5 Nd3 20.Rf7 (20.Bf7 Kh8 21.Be6–+) 20...Rf7–+ 21.Bf7 Kh8 22.Be6 (better is 22.Bc3–+) 22...Qe8?? (better is 22...c4 23.Bg7 Kg7 24.Qc4 Qd6–+) 23.Bc7–/+ Be4 (23...c4 24.Qc4 Bc5 25.Kh2–/+) 24.Bd8 (24.Nc3 Qg6 25.Ne4 Qe4–/+) 24...Bd8 (better is 24...Qd8!? 25.Qc4 Bf6 26.Qe4 Ba1–/+) 25.Nd2+= Bg6 (25...Qg6 26.Ne4 Qe4+=) 26.Rf1+= Bf6 27.Qd5 Bd4 (27...Nb2!?=) 28.Kh2+/– h6 29.Nc4 Qb8 30.g3 Bf2 31.Qf3+– Bd4 32.Bf7 Ne5?? 33.Ne5 Be5 34.Bg6 Bf6 35.Be4 Qe5 36.Qf5 Qb2 37.Kh1 Qd2 38.Qh7 1–0. marvis (1715) – fontolos (1750), internet, 2013.

7.f4 b6 8.Nf3 Bd6 9.Be2 0–0 10.0–0 Bb7 11.Qc2 dc4 12.Bc4 Nd5 (12...Ra7 13.Be5=) 13.Ng5+= Threatening mate... how? 13...g6 14.Nc3 h6?? (better is 14...Nb4 15.Qb1 Be7+=) 15.Ne6!!+– Nb4 (15...fe6 Theme: Deflection from g6 16.Qg6) 16.Qb1 (better is 16.Qg6! fg6 17.Nd8 Kh7 18.Nb7+–) 16...Qh4 17.Nc5! Bc5 (17...bc5 18.Qg6 A double attack) 18.Qg6 Kh8 19.Ne4 f6 20.Bf6 Rf6 21.Qg8# 1–0. Sundin,Tommy – Larsson,D, Umea Sweden, 1988.

6.a4 Bd6

7.cd5 ed5 8.Nc3 0–0 9.Nf3 Bf5 10.Be2 Nbd7 11.0–0 Re8 12.Nh4 Be6 13.Bf3? (13.Nf3!?+=) 13...Ne5 (13...g5 14.Bd5 Nd5 15.Nd5–+) 14.Ne2 (better is 14.Be2!?–/+) 14...g5 15.d4 (better is 15.Qc2–+) 15...Nc4 (15...Nf3?! 16.Nf3 cb5 17.ab5= (worse is 17.Ng5 Bh2 18.Kh1 Ne4–/+)) 16.Qc2 Nb2 17.Qb2 gh4 18.g3 (18.bc6 bc6 19.Rac1 Rc8–+) 18...Ne4 19.Be4 de4 20.Nf4 Bf4 21.ef4 (21.gf4 Qf6 22.Kh1 c5–+) 21...Bh3 22.Rfe1 e3! 23.f3? (23.Re3 Qd5 Decoy; 23.fe3 hg3 Decoy) 23...Qd5 24.Qe2 Kh8 (24...hg3 25.hg3 cb5 26.Qb5 Qd4 27.Rad1–+) 25.Rad1 (25.bc6 bc6 26.Rac1 Re7–+) 25...Rad8 26.g4 Rg8 (26...cb5 27.ab5 f5 28.g5–+) 27.g5 (27.bc6 Qc6 28.Rd3 f6–+) 27...f6 28.Qe3 fg5 29.fg5 (29.Qe5 Rg7 30.f5 Qf3–+ (worse is 30...Bf5 31.bc6 bc6 32.Qf6–+)) 29...Qg5 (29...Rg5 30.Kh1 Bg2 31.Kg1 Bf3 32.Kf2 Bd1 33.Rd1 Qg2 34.Ke1 Rf5 35.Qe2 Rf1 36.Kd2 Rd4 37.Kc2 Qe2 38.Kc3 Rfd1 39.bc6 R1d3) 30.Qg5 Rg5 31.Kf2 Rg2 32.Ke3 Rh2 33.Kf4 (33.bc6 bc6 34.Rc1 Re8 35.Kf4 Rf8 36.Kg5 Rg2 37.Kh5 Rf5 38.Kh4 Rf3–+) 33...cb5 34.ab5 Bd7 35.b6 Bc6 36.Re5 Rf2 37.Rd3 (37.d5 Rf8 38.Ke4 Bd7–+) 37...Rf8 38.Kg5 (38.Kg4 Bf3 39.Kh4 Rg8–+) 38...R2f3 (better is 38...h3 39.Kh4 h2–+) 39.Rf3 Rf3 40.Kh4 (40.Ra5 h3 41.Ra2 Rg3 42.Kh4 Rd3–+) 40...Rf4 41.Kg5 Rd4 42.Kf6 (42.Ra5 Kg7–+) 42...Rd8 (better is 42...a4 43.Re7–+) 43.Ra5 Rg8 44.Rc5 h6 45.Rh5 Kh7 46.Re5 Rg6 47.Kf7 (47.Ke7 Bg2 48.Rb5 Rg5 49.Rg5 hg5–+) 47...Rg7 (better is 47...Ba4 48.Ke7 Rb6 49.Kd8–+) 48.Kf6 Rg6 49.Kf7 Rg5 (49...Ba4 50.Ke7 Rb6 51.Kd8–+) 50.Re3 (50.Kf6 Re5 51.Ke5 Kg6–+) 50...h5 51.Rh3 (51.Kf6 Rb5–+) 51...Kh6 52.Kf6 Rb5 53.Rg3 Rb6 54.Rg8 (54.Rg6 Kh7 55.Rg7 Kh8 56.Rg3–+) 54...Bd5 55.Ke5 Bg8 0–1. dtpwaldi – kubus3345 (1725), internet, 2012.

7.cd5 ed5 8.Nf3 Bg4 9.Be2 0–0 10.0–0 c5 11.h3 Bh5 12.d4 c4 13.Nc3 Bb4 14.Ne5 Be2 15.Qe2 Bc3 16.Bc3 Ne4 17.Bb2 f6 18.Nc4 dc4 19.Qc4 Kh8 20.f3? (better is 20.Rfd1+=) 20...Nd2–+ 21.Qc5 Nf1 22.Kf1 Nd7 23.Qd5 Nb6 24.Qd8 Rfd8 0–1. emeryt85 – grek101 (1635), internet, 2012.

7.Nf3 +=.

6.Nf3 a4

7.a3 Bd6 8.Nc3 =.

7.a3 Nbd7 8.Nc3 Nb6 9.bc6 Nc4 10.Bc4 dc4 11.Na4 bc6 12.0–0 +=.

7.a3 Nbd7 8.Nc3 Nc5 9.d4 (9.bc6 bc6 10.Ne5 Qc7+=) 9...Nb3 10.Ra2 White is in command 10...Qa5 (10...cb5 11.cd5 Nd5 12.Ne5+=) 11.Bd3 (11.bc6 bc6 12.Ne5 Bb7+=) 11...dc4 12.Bc4 Nd5 (12...cb5 13.Bb3 Ne4 14.Qc2 ab3 15.Qb3+=) 13.Qc2+= (13.Bb3?? Nc3 14.Bc3 Qc3 15.Nd2 ab3 16.Qb3 Qc1 17.Qd1 Qd1 18.Kd1 cb5–+ (18...Ba3?! 19.Nb1+=)) 13...cb5 14.Bb5 (worse is 14.Bb3 ab3 15.Qb3 Nc3 16.Bc3 b4+=) 14...Bd7 15.Bd7 Kd7 16.e4 Nc3 17.Bc3 Qc7 18.Ne5 Ke8 (18...Kd8 19.Qb2 f6+=) 19.0–0?? (better is 19.Qd3!?+=) 19...Rc8 (better is 19...f6!? 20.Rd1 fe5 21.de5 Qc4–+) 20.Qd3 Qc3 21.Qb5 Ke7?? 22.Qd7 Kf6 23.Qf7 Kg5 White now must not overlook the idea g6 24.f4 Kh6 25.Ng4# 1–0. Sass,Andreas – Kemeny,Matthias, Schleswig Holstein–ch cand, 1991.

7.a3 Nbd7 8.Nc3 Be7 9.Na4 0–0 10.Nc3 e5 11.d4 e4 12.Nd2 dc4 (12...Qc7 13.Be2+=) 13.Bc4 (worse is 13.Nc4 cb5 14.Nb5 Nd5+=) 13...Nb6 14.Be2 Nbd5 15.Nce4 Ne4 16.Ne4 Qa5 (16...cb5 17.0–0+/–) 17.Qd2+– cb5 18.0–0 Bf5 19.Qa5 Ra5 20.Ng3 Be6 21.Bf3 (21.e4 Nf4 22.d5 Bd7+–) 21...Rfa8 22.Rab1 Ba3? (better is 22...Kf8!?+/–) 23.Ba3+– Ra3 24.Rb5 Nc3 25.Rb7 g6 26.h3 Ra2 27.Ne4 Ne4 28.Be4 R8a5 29.Rb8 Kg7 30.Rfb1 Rd2 31.R8b5 (31.R1b2!? Rb2 32.Rb2 f5+–) 31...Raa2 32.f3?? (better is 32.d5 Bd7 33.Rb7+/–) 32...Rg2 33.Kf1 Bc4 34.Ke1 Rg1 0–1. barborski – vcelar1943, internet, 2013.

7.a3 Nbd7 8.bc6 bc6 9.Nc3 dc4 10.Na4 Ba6 +=.

6.Nf3 cb5

7.cb5 a4 8.a3 Nbd7 9.Nc3 Nb6 10.Be2 Be7 11.0–0 0–0 12.Nd4 (12.Rc1 Bd6=) 12...Re8 (12...e5 13.Nf3 d4 14.Ne5 dc3 15.Bc3–+) 13.Bf3 (13.d3 e5 14.Nf3 Bd6+=) 13...Bf8 (13...Nc4 14.Ra2–/+) 14.h3 e5 15.Nc2 d4 16.ed4 ed4 17.Nb1 d3 18.Ne3 Ne4 19.Nc3 Nc3 20.Bc3 Nd7 21.Rb1 Ne5 22.Be5 (22.Bb4!?=) 22...Re5–/+ 23.Nc4 Rc5 24.Ne3 Rb8 (24...Qg5 25.Be4+=) 25.Bg4 (25.Qa4!? Be6 26.Rfe1+=) 25...Bg4 (25...Qa5 26.Bc8 Rbc8 27.Qg4+=) 26.Qg4= Qg5 (26...Ra8 27.Rfe1=) 27.Qd7 (27.Qa4 Rd8+=) 27...h5 (27...Qg6=) 28.f4 (28.Qd3!? Rd8 29.Qe4 Rb5 30.Qa4=) 28...Qe7 (28...Qd8!? 29.Qd8 Rd8+=) 29.Qd3= Rd8 30.Qe2 Rc2 31.Qh5 (31.Rbd1!?+=) 31...Rcd2+= 32.Nc4 (32.Rfe1 Qe4 33.Kh1 Qf4–/+ (33...Ba3?! 34.Qg4 Qd4 35.Nf5=)) 32...Rc2 (32...R2d5 33.Qf3 Qc5 34.Ne3–+) 33.Ne5 (better is 33.Rbc1!? Rc1 34.Rc1=) 33...Rdd2–/+ 34.Qg4 Rg2 35.Qg2 Rg2 36.Kg2 Qa3 37.Rbe1 Qb2 38.Rf2 Qb5 39.Ree2 (39.Kg3 Qc5–+) 39...Qd5 40.Kg3 b5 41.Rf3 (41.Rd2 Qc5–+) 41...a3 42.Rd3 Qe6 43.Kg2 (43.Ree3 b4 44.Ng4 Qb6–+) 43...b4 (better is 43...f6 44.Rde3 a2 45.Nf3 Qe3 46.Re3–+) 44.h4 (44.Re1–+) 44...f6 45.Kf3 (45.Re1 fe5 46.Re5 Qg6 47.Rg3 Qc2 48.Kf3 b3–+) 45...fe5 46.Re5 (46.Re5 Qc6 47.Ke2–+). avinoam – rusel1972 (1610), internet, 2013.

7.cb5 Nbd7 8.d4 Qc7 (8...Bb4 9.Nbd2=) 9.Nbd2+= Bd6 10.h3 0–0 11.Rc1 Qb8 12.Bd3 Re8 13.0–0 e5 (13...Qa7 14.Ne5+=) 14.de5 Ne5 15.Ne5 Be5 16.Be5 Re5 17.Nf3 Re7 18.Nd4 Qe5 19.Qf3 Ne4 20.Rc2 Ng5 21.Qe2 Qf6 (21...Nh3!? 22.Kh1 Ng5+=) 22.Rfc1+/– Be6 23.Ne6 (23.Qd2 Ree8+/–) 23...Ne6 (23...Qe6!? 24.Qh5 Ne4+=) 24.Qh5 The mate threat is Qxh7 24...Ng5 25.Rc8 (25.h4 Ne4 26.Qd5 Nd6+–) 25...Re8+/– 26.Ra8 Ra8 27.h4 Ne4 28.f3 g6?? 29.Qd5+/– Nd6 30.Qd4 Qe7 31.Bf1 Nf5+= 32.Qc5 Re8 Will e3 fall? 33.Qe7 Re7 34.e4 Nh4 35.Kf2 White intends g3 35...g5 36.Rc8 Kg7 (36...Kg7 37.Bc4 Rd7+/–). Hollstein,Gerhard – Meinhardt,Roland, PF–op Bellheim, 1994.

7.cd5 Nd5 8.Bb5 Bd7 9.Qa4 Nb6 10.Bd7 N8d7 11.Qg4 Rc8 12.0–0 (12.Bg7? Rg8 13.0–0 Rg7–+) 12...Nc4 13.Bd4 (13.Bg7? Rg8–+) 13...Nf6 14.Bf6 Qf6 15.d4 Bb4 16.a3 Bd6 17.Nbd2 0–0 (17...Na3 18.Ne4 Qd8 19.Qg7+–) 18.Ne4 Qe7 19.Nd6 Qd6 20.Rfc1 Na3 21.Ne5 (21.Ng5 Qe7+=) 21...f6 22.Nd3 Rc1 23.Rc1 b5 24.Nc5 f5 25.Qe2 (25.Qf3!?+=) 25...Nc4–/+ 26.Qa2 f4 27.Rc4 bc4 28.Qc4 fe3 29.fe3 Qd5 30.Qa4 Qf5 31.h3 Qf2 32.Kh2 Qe3 33.Qa5 (33.Qd7 Qf4 34.Kh1–+) 33...Qf4 34.Kh1 Qd4 (34...Qd4 35.Qc7 Rf1 36.Kh2 h5 37.Ne6 Qg1 38.Kg3 Qe3 39.Kh4 Qe6 40.Qd8 Kh7 41.Qd3 Rf5 42.Qf5 Qf5–+) 0–1. Hal1958 – SSOF (1890), playchess.de, 2006.

7.cd5 Nd5 8.Bb5 Bd7 9.Be2 =.

6.Nf3 Bd6

7.d4 dc4 8.Bc4 Bd7 =.

7.cd5 ed5 8.Be2 0–0 9.0–0 Nbd7 10.d4 Ne4 11.Qc2 c5 12.dc5 Ndc5 13.Rd1 Bf5 14.Rd5 Bh2 15.Kh2 Qd5 16.Bc4 Qd7 17.Ne5 Qd6 18.f4 Rac8 19.Bd4 Qh6 20.Kg1 Ng3 21.Qb2 Qh1 22.Kf2 Nce4 23.Kf3 Qh5 0–1. ognos – fudipu, internet, 2014.

7.Be2 0–0 8.0–0 cb5 9.cb5 Nbd7 10.d4 =.

7.Be2 0–0 8.0–0 dc4 9.Bc4 cb5 10.Bb5 Bd7 11.Nc3 Nd5 (11...e5 12.Qa4=) 12.Be2 Nc3 13.Bc3 b5 (13...Bc6 14.Rc1=) 14.Nd4 (14.Rb1 b4 15.Be5 Be5 16.Ne5 Nc6 17.Nd7 Qd7=) 14...b4 15.Bb2 Qb6 (15...Nc6 16.Nb5 Bb8 17.f4=) 16.f4 (16.Bd3 Nc6=) 16...Nc6 (16...Rc8 17.Bd3=) 17.Bd3 f5 (17...Nd4 18.Bd4 Qb7 19.Rc1=) 18.Rc1+= Rac8 (18...Nd4 19.Bd4 Qd8+=) 19.Nf3 (19.Bc4!? Nd4 20.Bd4=) 19...Bf4+= 20.Rc6? (20.Bc4 Kh8+=) 20...Be3! (20...Rc6?! 21.Bd4 Bh2 22.Kh2 Qb8 23.Be5=) 21.de3 Qe3 (worse is 21...Qc6 22.Ne5 Qc7 23.Nd7 Qd7 24.Bf5+/–; 21...Bc6?! 22.Bd4 Qc7 23.Ne5=) 22.Kh1 Bc6 (worse is 22...Rc6 23.Bb5 Be8 24.Bc6 Bc6 25.Bd4+=) 23.Nd4 Bd5 24.Ba6 Rcd8 25.Qa1 Qg5 26.Nf3–/+ Qe7 27.Be5 g5 28.Rc1 Bf3 29.gf3 Qd7 30.Rg1 g4 31.Qc1 Qd2 32.Bc4 Kf7+= 33.Qb1 Qe3?? 34.Qf5 (34.Qf5 Kg8 35.Rg4 Qg5 36.Rg5#) 1–0. Mielke,Sven (2095) – Boettcher,Dietmar (1725). Ryck Open Greifswald, 2002.

7.Be2 0–0 8.0–0 dc4 9.Bc4 cb5 10.Bb5 Bd7 11.Bd7 Nbd7 12.Re1 e5 13.d4 e4 14.Nfd2 b5 15.f3 (15.Nc3 Re8+=) 15...Qc7 16.Nf1 (16.Ne4 Bh2 17.Kh1 Bg3 18.Ng3 Qg3+=) 16...a4 (16...Rfe8 17.Nc3 Bb4 18.Rc1 (worse is 18.Nb5 Qc6 19.a4 Be1 20.Qe1 ef3–/+) 18...Bc3 19.Rc3+=) 17.fe4+= Ne4 18.Nbd2 f5 19.Nf3 (19.Ne4 fe4 20.Qh5 Qb7–/+) 19...Nb6 20.N1d2 Nc4 21.Nc4 bc4 22.Qc2 c3 23.Bc1 g5 24.g3 g4 (24...Kg7 25.Rf1–/+) 25.Nh4 Bg3 26.hg3 (26.Nf5 Bh2! 27.Kh1 Ng3 28.Kh2 Nf5 29.Kh1 Qc6 30.Qg2 Ng3 31.Kg1 Qg2 32.Kg2–+) 26...Qg3 27.Ng2 Ra6 28.a3 Rh6 (28...Rh6 29.Rd1 Rh2 30.Qa2 Kh8 31.Re1 Nd2 32.Qd5 Rg2 33.Qg2 Nf3 34.Kh1 Qe1 35.Qg1 Qg1#) 0–1. Hasler,Ulrich – van Rooijen,Peter, corr or02–023, 2002.

7.Be2 dc4 8.Bc4 cb5 9.Bb5 Bd7 10.Na3 =.

7.Be2 Nbd7 8.0–0 cb5 9.cb5 b6 10.a4 Bb7 11.Ba3 Ba3 12.Na3 0–0 13.Nc2 e5 14.d4 e4 15.Nd2 Rc8 16.Rc1 Qe7 17.Ne1 Qa3 18.Ra1 Qe7 19.g3 Rc3 20.Ng2 Rfc8 21.h3 Qb4 22.Rb1 Qd6 23.Nf4 Rc2 24.Nh5 Nh5 25.Bh5 Qa3 26.Bg4 Qe7 27.Re1 g6 28.Bd7 Qd7 29.Kg2 Qe7 30.Nf1 Qa3 31.Re2 Re2 32.Qe2 Qa4 33.Qg4 Rc7 34.h4 Bc8 35.Qf4 Rc2 36.h5 f5 37.h6 Qa3 38.Nh2 Qe7 39.g4 g5 40.Qg3 Kf7 41.gf5 Bf5 42.Ng4 Bg4 43.Qg4 Kg6 44.Rh1 Kf7 45.Qf5 Qf6 46.Qh7 Ke6 47.Qg8 Kd6 48.h7 Qf2 49.Kh3 Qf3 0–1. ejdrzej (1675) – gambit2007 (1955), internet, 2013.

6.Nf3 Nbd7

7.a4 Bb4 8.Bd3 (8.cd5 ed5 9.Be2 0–0=) 8...0–0 (8...Nc5 9.Be2+=) 9.0–0 Nc5 10.Qc2 (10.Be2 dc4 11.Bc4 Bd7=) 10...Nd3+= 11.Qd3 Qe7 (11...dc4 12.Qc4 Bd7 13.Ne5+=) 12.Ng5 (12.Ba3 dc4 13.Qc4 Qd6=) 12...e5+= 13.cd5 e4 14.d6 (14.Qd4 Rd8 15.Nc3 A) 15...Nd5?! 16.Qg7 (16.Nce4? f5–+) 16...Kg7 17.Nd5 Kg6 18.Ne7 Kg5 19.Nc8 Rac8 20.bc6=; B) 15...cd5–/+) 14...Bd6–/+ 15.Qd4? (better is 15.Qc2!?–/+) 15...Rd8–+ 16.Qc4 h6 17.Nh3 Be5 18.Be5 Qe5 19.Qc3 Qc3 20.dc3 Bh3 21.gh3 cb5 22.ab5 b6 (22...Rd5 23.c4 Rg5 24.Kh1–+) 23.c4 (23.Ra4 Rd3–+) 23...Rac8 24.Rc1 Nd7 25.Nd2 Nc5 26.Rc2 Rd3 27.Kf1 Rcd8 28.Ke2? f5 29.h4? Kf7 30.Rg1 g6 31.h3 f4 32.Rg4 f3 33.Ke1 Nb3 34.Rf4 Kg7 (34...Kg7 35.Re4 Rd2 36.Rd2 Rd2–+) 0–1. McCarthy,Mike – Solare,Juan, Orang–Utan Invitational, 2001.

7.a4 Bd6 8.d4 =.

7.Nc3 Bd6 =.

7.Nc3 Be7 8.d4 cb5 9.cd5+= ed5 (9...Nd5 10.Bb5 Nc3 (10...0–0 11.0–0 N7f6 12.Ne5 Nc3 13.Bc3 Nd5 14.Rc1 Nc3 15.Rc3 Bb4 16.Rb3 Bd6+=; 10...a4 11.Nd5 ed5 12.Bc3 0–0 13.Ba4 Nb6 14.Bc2 Qc7 15.Qd3 g6 16.Bb3 Bf5+=; 10...Qb6 11.Rb1 0–0 12.0–0 N7f6 13.Ne5 Nc3 14.Bc3 Nd5 15.Bd2 Qd8 16.Bd3 Bd6+=) 11.Bc3 0–0 12.0–0 Nf6 13.Ne5 Nd5 14.Rc1 a4 15.e4 Nc3 16.Rc3 f6+=) 10.Bb5 0–0 11.0–0 Nb6 12.Ne5 Nfd7 13.Nd3 (13.Rc1 Ne5 14.de5 Be6 15.Qc2 Rc8 16.Bd3 h6=) 13...Nf6 (13...Bd6 14.Qb3 Nf6 15.Rfc1 Bf5 16.Ne5 Ne4=) 14.Ne5 (14.Qb3 Bf5= 15.Nc5 Qc7 16.Rac1 Bd6=; 14.Rc1 Bg4 15.Qc2 Bf5 16.Qe2 Bd6=) 14…Nfd7 ½–½. Schiefelbusch,Dirk (2130) – Zemella,Christian (2050), Dortmund op–A, 2005.

7.bc6 bc6 8.d4 (8.Nc3 Rb8 9.Rb1 Ba6=) 8...c5 (8...Rb8 9.Qc2=) 9.Nbd2 Be7 (9...Rb8 10.Bc3=) 10.Be2 (10.cd5 ed5 11.dc5 Bc5+=) 10...0–0= 11.0–0 cd4 (11...Rb8 12.Rb1=) 12.Nd4 (12.Bd4 Ba6=) 12...Nc5 (12...Bb7 13.Rc1=) 13.Nc6+= Qc7 14.Ne7 Qe7 15.Rc1 dc4 16.Bc4 (16.Nc4 Ba6+=) 16...Ba6 (16...Bb7 17.Qc2=) 17.Qe2 (17.Ba3 Rfc8+=) 17...Bc4 (17...Rfd8 18.Ba3 Bc4 19.Nc4+=) 18.Rc4+= Ncd7 19.Nf3 (19.Rfc1 e5+=) 19...Rfc8= 20.Rfc1 Rc4 21.Rc4 Nb6 (21...Rb8 22.Qd2=) 22.Rc6 Nbd5 23.Qc4 (23.e4 Nb4 24.Rc4 Rd8+=) 23...Qb7 24.Rc5 Rb8 (better is 24...Rd8 25.Rb5 Qc7=) 25.Nd4?? (25.Bf6 gf6 26.h3 Qb4+=) 25...h6 (better is 25...Qb2 26.Rc8 Ne8 27.Rb8 Qb8–+) 26.Nb3+= Qb4 27.Be5 (27.Qe2 Ne4 28.Rc4 Qb5 29.Rc8 Kh7+/–) 27...Ra8 28.Rc8 Rc8 29.Qc8 Kh7 30.Qc2 g6 31.Qd2 Qd2 32.Nd2= Nd7 33.Bd4 e5 34.Bb2 f6+= 35.Kf1 Kg7 36.Nc4 a4 37.Ke2 Kf7 38.g3 Ke6 39.e4 (39.e4 N5b6 40.Nb6 Nb6 41.Bc1=). Franke,Claus Peter – Suess,Stefan, corr SOK–87–12, 1988.

7.d4 Bb4 8.Bc3 =.

7.d4 cb5 8.cd5 Nd5 9.Bb5 Bb4 10.Nbd2 0–0 =.

7.d4 dc4 8.Bc4 Bb4 9.Bc3 =.

7.d4 dc4 8.Bc4 cb5 9.Bb5 Be7 10.Nbd2 0–0 11.0–0 b6 12.Qe2 Bb7 13.Rfc1 Rc8 (13...a4 14.e4+=) 14.e4 Ne8 (14...Rc7 15.Rab1+=) 15.Rc8+/– Bc8 16.Rc1 Nd6 17.Ba4 (17.Bc6 Bb7+=) 17...Bf6 (17...Bb7!?+=) 18.e5+/– (18.e5 b5 19.Bc2+– (19.ed6?! ba4 20.Rc7 Re8+=; 19.ef6?! ba4 20.fg7 Re8+/–; 19.Bb5?! Nb5 20.ef6 Nd6+–)) 1–0. Schwertel,Gottfried – Sikora, corr 3GMM–50, 1996.

7.d4 dc4 8.Bc4 Nb6 9.Bd3 Bb4 10.Nc3 (10.Bc3 Nbd5 11.Bb4 Nb4 12.bc6 0–0+=) 10...Nbd5 11.Rc1 Nc3 12.Bc3 Nd5 13.Bb4 ab4 14.bc6 bc6 15.Ne5 Qg5 (15...Ra2 16.Bb1 Rb2 17.Be4= (worse is 17.Rc6 Nc3 18.Rc3 bc3–/+)) 16.Qf3 (16.Nc6 Qg2 17.Rf1 Nc3 (17...Qh2?! 18.Ne5=) 18.Rc3 bc3–/+; worse is 16.Rc6 Qg2 17.Rf1 Bb7+= (17...Qh2 18.Qf3 f6 19.Rh1 Qh1 20.Qh1 fe5 21.Qh5 Kd7 22.Bb5+–)) 16...0–0 17.h4 Qf6 18.Qe4 (worse is 18.Rc6 Qf3 19.Nf3 Ra2+=) 18...Qf5 (better is 18...Qh6!?+=) 19.Qf5 ef5 20.Nc6 (20.Bc4 Bb7 21.Bb3 Nc3+/–) 20...Bd7 (20...Bb7 21.Bf5 Bc6 22.Rc6=) 21.Ne5+/– Be6 22.0–0 (22.Bb1 Rfb8 23.Kd2 Nc3=) 22...Nc3 (22...Ra2 23.Bc4 Ra7 24.Rb1=) 23.Rc2 (23.Nc6 Na2 24.Rc5 Ra3 25.Bf5 Bf5 26.Rf5 b3+/–) 23...Na2 (23...Rfc8 24.Rfc1=) 24.Rb1 b3 25.Rc5 Rfc8 26.Bc4 Rc5 27.dc5 Rb8 28.Be6 fe6 29.c6 Nc3? 30.c7+– Rc8 31.Rb3 Nd5 32.Rb8 Ne7 33.Nc6!! Kf7 34.Ne7 Rc7 35.Nc8 h6 36.Nd6 Ke7 37.Nb5 Rc1 38.Kh2 Rf1 39.Rb7 Kf6 40.Kg3 g5 41.hg5 hg5 42.f4 gf4 43.ef4 Rd1 44.Nc7 Rd3 45.Kh2 Re3 46.Ne8 Kg6 47.Rg7 Kh6 48.Rg5 Re4 49.g3 e5 50.Rf5 ef4+/– 51.gf4 Re8 52.Rg5 Re2 53.Kg3 Re1 54.Kf3 Rf1 55.Ke4+– Re1 56.Kf5 Re8 57.Rg1 Rf8 58.Ke5 Re8 59.Kf6?? Rf8= 60.Ke5 Ra8?? 61.f5 ½–½. Wagner,Jean Philippe (1680) – Dakhlaoui,Ridha (2110), Noisy op, 2003.

7.d4 dc4 8.bc6 bc6 9.Bc4 Ba6 10.Ba6 Ra6 =.

7.Be2 Bd6 8.0–0 cb5 9.cb5 0–0 10.d4 Ne4 11.Nc3 f5 12.Nd2 (12.Rc1!?+=) 12...Nc3+= 13.Bc3 Qc7 14.Rc1 Bh2 15.Kh1 Bd6 16.f4 Qd8 17.Nf3 Nf6 18.g3 Ne4 19.Be1 a4 20.Kg2 Bd7 21.Ne5 Be5 (21...Qe8 22.Qd3–/+) 22.de5 Qb6 (22...Qe8!? 23.Qd3 b6–/+) 23.Qd4+= Qd4 24.ed4 Rac8 25.Bb4 Rfe8 26.a3 Kh8 27.Bd3 h6 28.Kf3 g5 29.Rh1 Kg7 30.Rhd1 Kf7 31.Ba5 gf4 32.gf4 Rg8 33.Be1 h5 34.Bh4? (better is 34.Rc8 Rc8 35.Bb4+=) 34...Nc3–+ 35.Rg1 (35.Rd2 Nb5 36.Bb5 Rc1 37.Bd7 Rc3 38.Kf2 Rg4–+ (38...Ra3?! 39.Bg5–/+)) 35...Rg1 (35...Nb5?! 36.Rc8 Rc8 37.Bf6–+) 36.Rg1 Bb5 (36...Nb5?! 37.Bf6 Rc3 38.Rg7 Kf8 39.Ke3–+) 37.Ke3 Bd3 38.Kd3 Ne4 39.Ra1 Rc3 40.Ke2 Rh3 41.Bd8 (41.Be1 h4 42.Rc1 Rh2 43.Ke3 h3 44.Rc7 Kg6–+) 41...Nc3 42.Kf2 Nb5 43.Bb6 h4 (43...Na3?! 44.Bc5 Nc4 45.Ra4–+) 44.Rb1 (44.Bc5 Rb3–+) 44...Rb3 45.Rh1 h3 46.Rc1 Ra3 47.Rc8 Nc3 48.Bc5 (48.Rc7 Kg6 49.Ba5 Ra2 50.Kg1 Rg2 51.Kh1–+) 48...Ne4 49.Kg1 Ra2 50.Rf8 Kg7 0–1. Tagirov,Kajum K (1920) – Ibragimov,Maxim (2095), Ufa Dautov Memorial op, 2009.

7.Be2 Bd6 8.0–0 dc4 9.bc6 bc6 10.Bc4 (10.Na3 0–0=) 10...Rb8 11.Qc2 Qc7 (11...e5 12.Nc3=) 12.h3 (12.Rc1 0–0=) 12...0–0 13.d4 Bb7 14.Nbd2 c5 Black fights for the Initiative 15.Rac1 cd4 16.Bd4 e5 17.Bb2 Nc5 Black intends e4 18.g3 (18.Rfd1 Rfd8+=) 18...e4 (18...Nfe4 19.Rfd1+=) 19.Bf6 Bg3 20.Be5?? (20.fg3 Qg3) 20...Be5–/+ 21.Ne5 Qe5 22.Bf7 Rf7 (22...Kf7 23.Qc5) 23.Qc5 Qe6 24.Qc4? (better is 24.Qa5!? Ba6 25.Rfd1–/+) 24...Qh3 (better is 24...Qg6 25.Kh1 Ba6–+) 25.Ne4? (25.Rb1 Qg4 26.Kh2 Qh5 27.Kg2 Qg6 28.Kh1 Rc8–+) 25...Qg4 (better is 25...Qf3 26.Rb1 Rc8–+) 26.Ng3 Qc4 27.Rc4 Ba6 28.Rc5 (28.Rc2 Bf1 29.Kf1 Rfb7–+) 28...Bf1 29.Kf1 Rb2 (29...Rb2 30.Ra5 Rff2 31.Ke1 Rg2 32.Ra8 Kf7 33.Ra7 Kg6 34.Ra6 Kg5–+) 0–1. Spiegel,Michael – Stummerer,Alfred, corr SOK–88–21, 1988.

7.Be2 Bd6 8.d4 dc4 9.Bc4 Nb6 10.Be2 cb5 11.Bb5 Bd7 12.Bd7 Qd7 13.Nc3 (13.Ba3 Rc8=) 13...Nc4+= 14.Qb3 b5 (14...Rc8 15.Rc1+=) 15.a4 (15.Qb5 Rc8 16.Rc1 Bb4 17.Qd7 Nd7+=) 15...Bb4 (15...Nb2 16.Nb5 Bb4 17.Ke2 Na4 18.Qa4=) 16.0–0 (16.ab5? Nb2 17.0–0 Rc8–+) 16...Nb2 17.Ne5 ba4 18.Na4 (18.Qb2 Qd6=) 18...Qb7 (18...Qd5 19.Qb2 Rb8 20.Rfc1=) 19.Nb2 (19.Qb2 0–0=) 19...0–0 20.Nbc4 Qb5 (20...Qe4 21.Rfb1=) 21.Qa4 (21.Rfb1 Qe8+=) 21...Rfb8 (21...Qa4!? 22.Ra4 Nd5+=) 22.Qb5= Rb5 23.Rfb1 Nd5 24.Nc6 f5 25.f3 (25.Nb4 Nb4 26.Ra4 f4+/–) 25...Ra6 (25...f4 26.Nb4 Rb4 27.Rb4 Nb4 28.ef4+/–) 26.Nb4+/– Nb4 27.Ra4 g5 28.h4 gh4+= 29.Kh2 Kg7 30.Kh3+/– Kh6 31.Kh4 Ra7 32.Na5! Rba5 33.Ra5 Ra5 34.Rb4 Ra3 35.Rb6 Re3 36.d5 Kg7 37.Re6 Rd3 38.Rd6 h6+/– 39.Kh5 Rd1 40.Rg6 Kf7 41.Kh6 Rd5 42.Rg5 Rd6 43.Kh7 Rf6 44.Rg7 Ke8 45.Rg6 Rf7 46.Kh8 1–0. Wolf,M – Schmidt,H, corr JBDDR, 1980.

6.Nf3 Be7

7.a4 0–0 8.Bf6 Bf6 9.d4 +=.

7.a4 Bb4 8.Na3 (8.bc6 Nc6 9.cd5 ed5=) 8...0–0 9.Be2 (9.Nc2 Bd6=) 9...c5 (9...dc4 10.Nc4 cb5 11.ab5=) 10.0–0= b6 (10...dc4 11.Nc4 Nbd7 12.d4+=) 11.Qc2 (11.Nc2 dc4 12.Nb4 ab4 13.Bc4 Ne4+=) 11...Bb7 12.d4 Nbd7 13.cd5 (13.Bd3 dc4 14.Qc4 Bf3 15.gf3 Nd5=) 13...Bd5 14.Nc4 (14.dc5 Nc5 15.Rad1 Nfd7=) 14...Be4 (14...cd4 15.Bd4 Rc8 16.Rac1=) 15.Qd1 Qc7 (15...Rc8 16.dc5 Bc5 17.Nd6 Bd6 18.Qd6+=) 16.Rc1 Ng4 17.Nfe5 Nge5 18.de5 Rad8 (18...Rfd8 19.Nd6 Nf6 20.f3+= (worse is 20.ef6 Rd6 21.Qb3 Rd2+=)) 19.Nd6 Bg6 (19...Bd5 20.e4 Ba8 21.Bc4+/–) 20.Rc4 (20.Bd3 Bd3 21.Qd3 f6=) 20...Nb8 (20...f6 21.ef6 Nf6 22.Be5=) 21.Qa1 (21.Bd3 Bd3 22.Qd3 f6+=) 21...Rd7 22.Rd1 Rfd8 23.h4 h6 24.h5 Bh7 25.f4 Re7 26.Bd3 Bd3= 27.Rd3 Nd7 28.Qd1 Nf8 29.e4 Nh7 30.Qg4 Red7+– 31.Bc1 Rd6 32.ed6+– Rd6 33.Rd6 Qd6+/– 34.Bb2 The mate threat is Qxg7 34...f6 35.e5 Qd8? 36.Qe6+– (36.Qe6 Kf8 37.Qf5+–) 1–0. Lauermann,Answarth – Hild,Sebastian, Baunatal op 2nd, 1996.

7.a4 dc4 8.Bc4 cb5 9.Bb5 Nc6 10.0–0 0–0 11.d4 Bd7 12.Nc3 Nb4 13.Bd7 Qd7 14.Ne5 Qd8 15.h3 Rc8 16.Rc1 Bd6 17.Nf3 h6 18.Qb3 Qb6 19.Nb5 Be7 20.Ne5 Nbd5 21.Nc4 Qa6 22.Ba3 Nb4 23.Rfe1 Nfd5 24.g3 Rfd8 25.Bb2 b6 26.e4 Nf6 27.Qe3 Na2 28.Rc2 Nb4 29.Rcc1 Na2 30.Rc2 Nb4 31.Rcc1 ½–½. gutes (1610) – grzechos, internet, 2012.

7.Qc2 0–0 8.Ng5 h6 9.h4?? (better is 9.Bf6 hg5 10.Be7 Qe7 11.Nc3+=) 9...hg5–+ 10.Bf6 Bf6?? (better is 10...gf6 11.hg5 f5–+) 11.hg5+/– g6 12.gf6 Qf6 13.Nc3 Nd7 14.d4 dc4 15.Bc4 Nb6 16.Ne4 Qf5 (16...Qe7 17.bc6 Qb4 18.Nd2 Nc4 19.Qc4+/–) 17.Bd3 (better is 17.Be2!? Kg7 18.bc6 bc6 19.Qc6+–) 17...Nd5 18.bc6 Nb4 19.Qe2 Nd3 20.Qd3 bc6 21.Rc1 Ba6 22.Qc2 Kg7 23.f4 (23.Qc6?? Rac8 24.Ng3 Qd3–+) 23...Qg4?? (better is 23...Rh8 24.Rg1 Rh2+/–) 24.Rh7!!+– Kh7 25.Nf6 Kg7 26.Ng4 Rac8 27.Qc5 Bb5 28.Qe5 f6 29.Qe6 Rce8 (29...Ba6+–) 30.Qd7 Kh8 31.Kf2 Rd8 (31...Rf7 32.Qf7 Bf1 33.Nf6 Re3 34.Qf8) 32.Rh1 Kg8 33.Qh7 1–0. combijack (1820) – speediecees (1665), gameknot.com, 2010.

7.Nc3 0–0 8.Rc1 =.

7.Nc3 Nbd7 8.d4 Bb4 (8...0–0 9.c5=) 9.Qc2 (9.a3 Be7+=) 9...Ne4 (9...0–0 10.a3 Be7 11.c5+=) 10.Bd3 Ndf6 (10...Ng5 11.Nd2 dc4 12.Bc4+/–) 11.Ne5 (11.bc6 bc6 12.a3 Bc3 13.Bc3 Ba6+=) 11...Bd7 (11...cb5 12.cd5 (worse is 12.Be4 Ne4 13.cd5 ed5+=) 12...Qd5 13.0–0 Bc3 14.Bc3=) 12.0–0 (12.bc6 Bc6 13.c5 0–0+=) 12...Bc3= 13.Bc3 (13.bc6 Bc6 14.Bc3 dc4 15.Bc4 0–0+=) 13...cb5 14.c5 (worse is 14.cb5 Rc8 15.Nc4 Rc4 (15...dc4?! 16.Be4 Ne4 17.Qe4+=; 15...Bb5?! 16.Ba5 Qd7 17.f3–/+) 16.Bc4 dc4–+; 14.Nd7?! Qd7 15.cd5 Qd5=) 14...Nc3 15.Qc3 b4 16.Qb3 Bc6 Black plans a4 (16...Ne4 17.Qc2+=) 17.a3 ba3 18.Ra3 0–0 (18...a4 19.Qb4+=) 19.Rfa1+/– Qc7 (19...Ne4 20.Qa2+/–) 20.Qc3 (20.Qb6!? Qb6 21.cb6+/–) 20...a4+= 21.Nc6 bc6 Opening the a–file gets White a lot of play. 22.Ra4 Ra4 23.Ra4 Rb8 (23...Ng4 24.f4+=) 24.Qa5 (24.Qa1 Ng4 25.g3 e5+=) 24...Qa5 (24...Qc8 25.Ra3+=) 25.Ra5 g6 (25...e5 26.Ra6 ed4 27.ed4+=) 26.Ra6+/– Rb3 (26...Rb2!?+/–) 27.Bf1 Ne4 28.Rc6 (28.Rb6!? Rc3 29.g4=) 28...Rb1= With the idea Nd2 29.Rb6 Rc1 Threatens Nd2 30.Rb2 Kg7? (better is 30...Rd1=) 31.f3+– Nc5 (31...Nc3 32.g4+–) 32.dc5 Rc5 33.Kf2 Rc7 34.f4 Ra7 (34...f6 35.Bd3+–) 35.Kf3 (35.g4 f6+–) 35...Rc7 (35...Ra3 36.Bb5+–) 36.g4 (36.Bd3 f5+–) 36...h6 37.h4 Ra7 38.f5 (38.Bb5 Ra1+–) 38...Rc7 (38...gf5 39.gf5 Ra3 40.Rb4+–) 39.Kf4 (better is 39.fe6 fe6 40.g5 e5+–) 39...Ra7 (39...gf5 40.gf5 Kf6 41.e4 de4 42.fe6 fe6 43.Ke4+–) 40.Rd2 (40.fe6!? Re7+–) 40...Ra3 (40...gf5 41.gf5 Kf6 42.Kg4+–) 41.Rd3 (41.fe6 fe6 42.e4 de4 43.Rd7 Kf8 44.Ke4 Ra4 45.Rd4 Ra5+–) 41...Ra1 42.Bg2 (42.Be2 gf5 43.gf5 Kf6 44.fe6 fe6+–) 42...Ra4 (42...gf5 43.gf5 Kf6 44.fe6 fe6 45.e4 e5 46.Kg4+–) 43.Rd4 (43.e4 gf5 44.gf5 Kf6 45.fe6 fe6+–) 43...Ra3 (43...Ra2 44.fe6 fe6 45.Bf3+–) 44.fe6 fe6 45.Bd5 (better is 45.Rb4+–) 45...e5?? (better is 45...ed5 46.Rd5 Ra7+–) 46.Ke5 Re3 47.Kf4 (better is 47.Be4!? Re1+–) 47...Re7 (47...Rh3 48.Rc4 Rh4 49.Rc7 Kf8 50.Kg3+–) 48.Re4 (48.Be4 Rf7 49.Ke3 Rf1+–) 48...Ra7 (48...Rd7 49.Re5+–) 49.Re6 Ra4 (49...Ra5 50.Rd6+–) 50.Be4 Kf7 51.Rg6 (better is 51.Rd6 g5 52.Ke5 Ra5 53.Bd5 Ke7 54.Rh6 gh4+–) 51...Re4 52.Ke4 Kg6 53.Ke5 Kg7 (53...Kf7 54.Kf5 Kg7+–) 54.Kf5 Kf7 55.h5 Kg7 56.Ke6 (56.Ke6 Kg8 57.Kf6+–) 1–0. Slagle,Jim – Mantia,A, Columbus, 1981.

7.d4 0–0 8.Nc3 dc4 (8...cb5 9.cb5 Bd7 10.Bd3=) 9.Bc4 cb5 (9...Bd7 10.0–0=) 10.Bb5 (10.Nb5 Bd7=) 10...Bd7 11.Bd3 Bb4 (11...Bc6 12.0–0=) 12.0–0+= Bc6 (12...Nc6 13.a3 Be7 14.Qb3+=) 13.Qe2 (13.Ne5 Qd6+=) 13...Bc3 (13...a4 14.a3 Bd6 15.Rfc1+=) 14.Bc3 Nd5 (14...Be4 15.Rab1+=) 15.Bb2 (15.Bd2 Qd6+/–) 15...Nd7 (15...Nb4 16.Bb1+=) 16.a3 (16.Ba3 Re8+=) 16...Rb8 17.Rfc1 f5 18.Nd2 (18.Rab1+=) 18...f4 (18...Qg5!? 19.f4 Qg6+=) 19.e4+/– White fights for the Initiative 19...Ne7 (19...Nc7 20.Rc2+/–) 20.Qg4+– Nf6 (20...Rf6+–) 21.Qe6 Kh8 22.d5 Bd7 (22...Ng6 23.Bd4+–) 23.Qd6 (23.Qe5 a4+–) 23...b5 (23...Ne8 24.Qh6+–) 24.Be5 Rb6 (24...Rb7 25.Rab1+–) 25.Qc5 (25.Qc7 Qc7 26.Rc7 Rd8+–) 25...Ne8 (25...Rb7 26.Bc7 Qe8 27.Ba5+–) 26.Bc7 (better is 26.a4 ba4 27.Bc3 Rb4+–) 26...Nc7 (26...Qc7 27.Qc7 Nc7 28.Rc7 Rd8+–) 27.Qb6 (27.Qc7?! Ng6+–) 27...Na8 (27...Ncd5 28.Qd8 Rd8 29.ed5+–) 28.Qd8 Rd8 29.Rab1 Rb8 (29...b4 30.ab4 a4 31.Nc4+–) 30.Nc4! a4 (30...bc4 Exploits the pin 31.Rb8 Theme: Double Attack) 31.Nd6 (31.Ne5 Be8+–) 31...g5 (31...b4 32.Rb4 Rb4 33.ab4+–) 32.Nf7 (32.Bb5!? Bb5 33.Nb5 Kg7+–) 32...Kg7 33.Ng5 Ng6 34.Nf3 (34.Rc5 b4 35.Rb4 Rb4 36.ab4 Nb6+–) 34...Kf6 35.Nd4 Ne5 (35...b4 36.Nc6 Bc6 37.Rc6 Kf7 38.Rb4 Rb4 39.ab4+–) 36.Bb5 Bg4 (36...Bb5 37.Nb5 h6 38.Nc3+–) 37.Nc6 (37.Ba4 Rb1 38.Rb1 Nc4+–) 37...Rg8 38.Ne5 (38.Rb4!? Nb6+–) 38...Ke5 39.Rc3 f3 40.Ba4 fg2 (40...Bh3 41.g3 Bg4 42.Rb4+–) 41.Rg3 Rg6 42.f4! Kf4 43.Rb8 (43.Rg2 Nb6 44.Bb5 Bf3 45.Rg6 hg6+–) 43...Nb6 44.Rf8 Ke5 45.Be8 Rg7 46.h3 h5 (46...Ke4 47.Rg4 Rg4 48.hg4 Kd5 49.Kg2+–) 47.Bh5! Ke4 (47...Bh5 A pinning theme 48.Rg7) 48.Rg4 (48.Rg4 Rg4 49.hg4 Nd5 50.g5+–) 1–0. De Visser,Arno – van der Zee, Noordkop, 1985.

7.d4 dc4 8.Bc4 0–0 9.Nbd2 cb5 10.Bb5 Nc6 11.0–0 Bd7 12.Qa4 Nb4 13.Bd7 Qd7 14.Qd7 Nd7 15.Ba3 Rfe8 16.Bb4 Bb4 17.Ne4 Nf6 (17...Rac8!?=) 18.Nf6+= gf6 19.a3 Bd6 20.Rfb1 Reb8 21.Rb5 a4 22.Nd2 Rc8 23.g3 Rc7 24.Kf1 Be7 25.Ke2 Rac8 (better is 25...Kg7!?+=) 26.Ra5+/– Rc2 27.Ra4 b5 28.Ra7 Bf8 29.Kd1 b4 30.ab4 Bb4 31.Ne4 (better is 31.R7a2 Ra2 32.Ra2+–) 31...f5= 32.Ng5 (32.Nc5 Rd2 33.Ke1 e5=) 32...Rf2?? (better is 32...Rd2 33.Ke1 Rcc2–/+) 33.R1a4?? (better is 33.R1a2 Ra2 34.Ra2+=) 33…Rd2 0–1. barborski – kubus3345 (1800), internet, 2013.

7.cd5 ed5 8.Bd3 0–0 =.

7.cd5 ed5 8.Be2 =.

7.Be2 0–0 8.0–0 cb5!? 9.cb5 Nbd7 =.

7.Be2 0–0 8.0–0 c5 9.d4 b6 10.Nbd2 Bb7 11.Rc1 (11.cd5 Nd5 12.dc5 Bc5=) 11...Nbd7= 12.Re1 Rc8 13.Bd3 Ne4 (13...cd4 14.Bd4 Nc5 15.Bc2=) 14.Bb1 (14.Qe2 cd4 15.Bd4 Nd2 16.Nd2 e5+=) 14...Ndf6 15.a3 (15.Ne4 Ne4 16.Nd2 Nd2 17.Qd2 dc4=) 15...h6 (15...Nd2 16.Qd2 dc4 17.Rc4+=) 16.h3 (16.Ne4 Ne4 17.Be4 de4=) 16...Rc7 (16...Nd2 17.Qd2 dc4 18.Rc4+=) 17.Qe2 Qa8 (17...Nd2 18.Nd2 dc4 19.Nc4 cd4 20.ed4= (20.Nb6? Rc1 21.Rc1 Qb6–+; 20.Bd4?! Qd5 21.Qf1 Qb5=)) 18.Ne4 Ne4 19.Be4 de4 20.Nd2 Bf6 (20...Rd8 21.dc5 Bc5 22.Red1=) 21.Nf1 (21.Rc2 Rcc8+=) 21...Rd8 22.Red1 (better is 22.dc5!? Rc5 23.Bf6 gf6 24.Qg4 Kh7 25.Qh4+=) 22...Rcd7+= 23.Qh5 cd4 24.ed4 Bd4 25.Bd4 Rd4 26.Rd4 Rd4 27.c5 Rd5–/+ 28.Qe2 Rc5 29.Rc5 bc5 30.Qc4 Qc8 31.Ne3 Qc7 32.Qc3 Bd5 33.Kf1 c4 34.Ke2 f6 35.Kd2 Kf7 36.Qd4 Qb7 37.Qc5 g5 38.b6 Bc6 39.Nc4= Qd7 40.Qd6 Qd6?? 41.Nd6+– Ke7 42.b7 Bb7 43.Nb7 h5 44.Na5 f5 45.Ke3 Kd6 46.h4 gh4 47.Kf4 h3 48.gh3 h4 49.Nb3 Kd5 50.a4 Kc4 51.a5 Kb5 52.Ke5 Ka6 53.Ke6 f4 54.Nc5 (54.Nc5 Ka5 55.Ne4+–) 1–0. Cerny,Thorsten – Meinhardt,Alfred, 47. LEM Kandidaten Germany, 1992.

7.Be2 0–0 8.0–0 Nbd7 9.d4 Ne4 10.Nbd2 f5 11.a4 Bf6 12.Re1 g5 13.Ne4 fe4 14.Nd2 Qe7 (14...Bg7!?+=) 15.Ba3 Qg7 (15...c5!?+–) 16.Bf8 Nf8 17.Bg4 (17.bc6 bc6 18.Rb1 Qf7+–) 17...Bd7 18.f3 Qg6? (better is 18...c5 19.cd5 ed5 20.Bd7 Nd7+–) 19.fe4 de4 (19...dc4 20.e5 c3 21.ef6 cd2 22.Qd2 Qf6 23.Rf1+–) 20.Rf1 e5 21.Bh5 Qg7 (21...Qh6 22.Ne4 Bg7 23.d5+–) 22.Ne4 Bd8 23.Nd6 (better is 23.Nc5!? Bf6 24.Qf3 Be7 25.Nd7 Nd7 26.bc6 Nf6+–) 23...ed4 24.ed4 (better is 24.Bf7 Kh8 25.Qd4+–) 24...Bb6 (24...Bf6 25.Ra3 Bd4 26.Kh1+–) 25.Bf7 (better is 25.c5 Be6 26.Bf7 Kh8 27.cb6 Rd8+–) 25...Kh8 26.c5 Bc7 27.Bc4 (27.Nb7!? Rb8 28.bc6 Bc6+–) 27...Bd6 28.cd6 Ne6 (28...Qh6+–) 29.Qg4 (better is 29.d5!? Nf4 30.dc6 bc6+–) 29...Nd4?? (better is 29...Nf4 30.Qg3 Qd4 31.Kh1 Qc4 32.Qg5 Ng6+=) 30.Qd1 Nf5 31.Rf3 (31.Qd3!? Qe5+–) 31...g4 (31...cb5 32.Bb5 Nd4 33.Re3 Nb5 34.ab5 Bb5 35.Re7+–) 32.Rd3 Re8 33.bc6 bc6 34.Bb3 Ne3 (34...Ne3 35.Qc1 g3 36.hg3 Nf5+–). barborski – aplws, internet, 2013.

5.c4 a6

6.a4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 c6 6.c4).

6.a4 ab5 7.ab5 Ra1 8.Ba1 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 c6 8.c4).

6.ba6 b6 7.cd5 ed5 8.Nf3 =+.

6.Nc3 ab5 7.cb5 Ba3 (7...Bd6 8.Nf3+=) 8.Qb3 (8.Ba3 Ra3 9.Nf3 0–0=) 8...Bb2 9.Qb2 0–0 (9...e5 10.Nf3 e4 11.Ne5+=) 10.d4 Qa5 (10...Nbd7 11.Nf3+=) 11.Bd3= Nbd7 (11...cb5 12.Bb5 Bd7 13.Nge2=) 12.Nge2 (12.bc6 bc6 13.Nge2 Ba6+=) 12...c5+= 13.0–0 Qa3 (13...c4 14.Bc2=) 14.Qd2= b6 (14...c4 15.Bc2=) 15.Rfb1 (15.Nf4 cd4 16.ed4 Bb7=) 15...c4 (15...e5 16.Bf5=) 16.Bc2 Bb7 17.Qc1 (17.Rc1 Rfc8=) 17...Qc1 18.Rc1 Ra5 (18...Rfc8 19.a4=) 19.Rcb1 (19.a4 Rfa8=) 19...Rfa8+= 20.Rb4 Ne8 (20...Ra3 21.Rc1+=) 21.Ra4 (21.a4 Nef6=) 21...Nd6 (21...Ra4 22.Na4 Nc7 23.Nac3+=) 22.Ra5= Ra5 (worse is 22...ba5 23.Rb1+=) 23.a4 g6 (23...f5 24.Rc1=) 24.Rb1 (24.Rc1 f6=) 24...Kf8 25.Na2 (25.Rc1 Ke7=) 25...f6 26.Nb4 Nb8 27.Nc3 Ke8 28.f3 f5 29.h3 Ra7 30.Kf2 Ba8 31.g4 Rf7 32.Nc6 Bc6= 33.bc6 Nc6 34.Rb6 Rc7 35.a5+= Ke7 36.a6= Nc8 37.Rb1 Ra7 38.Ba4 Ra6 39.Bc6 Rc6 40.Rb7 Kf6 41.gf5 gf5 42.Rh7 Nd6 43.h4 Nf7 44.h5 Rb6 45.e4 fe4 46.fe4 Rb3 47.e5 Ke7 48.Ne2 c3 49.Rg7 c2= 50.Rg1 Rh3 51.Nf4 Ng5+= 52.Rc1?? Rf3–+ 53.Ke2 Rf4 54.Rc2 Rd4 55.Rc7 Kf8 56.h6 Rh4 (56...Rh4 57.Rc8 Kf7–+) 0–1. Zylla,Johannes – Buchholz, BS–Stadtm., 1993.

6.bc6 bc6 7.Nf3 Be7 8.Nc3 Nbd7 9.Nd4 Bb7 10.cd5 ed5 11.Nf5 0–0 12.Bd3 Ne5 13.Be2 Ng6 14.Qa4 Re8 15.h4 Qd7 16.Ne7 Re7 17.h5 Nf8 18.h6 g6 19.Qd4 Re6 20.Na4 Qe7 21.Nc5 Rd6 22.Nb7 (22.Qf4!? Bc8 23.Be5 Ne8 24.Bd6 Nd6+–) 22...Qb7+/– 23.Ba3 Re6 24.Bg4 (24.Bg4 c5 25.Bc5+/–) 1–0. Novikov,Konstantin Ivan – Kosilov,Roman, Ch Chess Club (open), 2002.

6.Qf3 ab5 7.Bf6 gf6 8.cb5 e5 +=.

6.bc6 Nc6

7.cd5 ed5 8.Nf3 Bf5 (8...Bd6 9.Be2=+) 9.Nd4= Nd4 10.Bd4 Be7 11.Nc3 (11.Be2 0–0=) 11...0–0 (11...b5 12.Be2=) 12.Be2 Qd7 (12...b5 13.Qb3=) 13.0–0 Ne4 (13...b5 14.Qb3=) 14.Na4 Qd6 15.d3 Nf6 (15...Ng5 16.Bc5 Qc7 17.Be7 Qe7 18.Nb6=) 16.Nb6+= Rab8 (16...Rad8 17.Bf3+=) 17.Qb3 Bd8 (17...Rbd8 18.Rfc1+=) 18.Rfc1 (18...Bb6 19.Qb6 Qb6 20.Bb6+=). Luzuriaga,Norberto Horacio – Paglino,Mario, corr CADAP, 2002.

7.Nf3 Bb4 8.Be2 dc4 9.Bc4 b5 10.Bb3 0–0 11.0–0 Bb7 12.Qe2 Qe7 13.Bc3 Rad8 (13...Bd6 14.Rc1=+) 14.d4 (14.Bb4 Nb4 15.d4 Bf3 16.Qf3 e5=) 14...Ne4 (14...Bc3 15.Nc3 b4 16.Na4=+) 15.Bb4= Nb4 16.Nbd2?? (better is 16.a4=) 16...Nc3–+ 17.Qe1 Nd3 (18.Rc1 Ne1 19.Rfe1 Rc8–+) 0–1. Hasler,Ulrich – Hajdu, corr, 1991.

7.Nf3 Bd6 8.Bf6 (8.cd5 ed5 9.Be2 0–0+= 10.0–0 Be6 11.d3 Rc8 12.Nbd2 b5 13.a4 b4 14.Rc1 a5+=) 8...Qf6 (worse is 8...gf6 9.cd5 ed5 10.Qb3+= d4 11.Bc4 Na5 12.Bf7 Ke7 13.Qd5 de3 14.Nc3 Rf8=) 9.Nc3 Bb4 (9...dc4 10.Ne4 Qd8 11.Nd6 Qd6 12.Bc4+= b5 13.Be2 0–0 14.d4 Bb7=) 10.Rc1 dc4 11.Bc4 (11.Ne4 Qe7 12.Bc4 b5+= 13.Be2 Bd7 14.0–0 e5=) 11...0–0 (11...Ba3 12.Rb1= b5 13.Bd3 Bb7 14.Be4 Rc8+=) 12.0–0 (12.Qc2 Bd7= 13.Bd3 Qh6 14.Qb2 Rab8=) 12...Ne5 (12...Ba3 13.Rb1+= b5 14.Bd3 Bb7+=) 13.Ne5= Qe5 14.d4 Qa5 15.Ne4 Bd7 16.Bd3 Ba3 (16...Qa2 17.Nf6 gf6 18.Qg4 Kh8=) 17.Nc5 (better is 17.Rb1!?=) 17...Bc1+= 18.Nd7 Rfc8 19.Qg4 (19.Qb3 b5 20.Qb1 Ra7 21.Bh7 Kh8+=) 19...g6 (19...b5 20.Nf6 Kh8 21.Nh7=) 20.Qh4 (20.Qf3 Ra7–/+ (20...Qa2?! 21.Be4=)) 20...Ba3 (20...Rc7 21.Nf6 Kg7 22.Ng4+=) 21.g4 (21.Nf6 Kg7 22.Nh7 Qh5 23.Qh5 gh5–/+) 21...Qd8 22.Nf6 Kg7 23.g5 h5 24.gh6 (24.Qe4 Qa5 25.f4 Bc1–/+) 24...Kh8 25.Qf4 Bd6 (25...e5 26.Qe5 Bd6 27.Qg5–/+) 26.Qf3 Rc7 27.Ne4 f5 28.Nd6 Qd6 29.Rb1 Re8 30.a4 e5–+ 31.Qg3 Rd8 32.a5 e4 33.Qd6 Rd6 34.Be2 0–1. Bulcourf,Carlos (2145) – Gibson,T (2235), 8th Abierto Invierno, Villa Ballester A, 2008.

5.c4 cb5

6.cd5 Qd5 7.Nc3 Qg5 8.Nf3 Qh6 9.Nb5 Na6 10.Qa4 Bd7 11.Ne5 Nc5?? (11...Bc5 12.Nd7 Nd7 13.d4+=) 12.Qd4 (better is 12.Nc7 Kd8 A) 13.Na8?! A1) 13...Ba4?? 14.Nf7 Kd7 15.Nh6+– (15.Nh8?! Qh5+=); A2) 13...Na4 14.Nf7 Ke8 15.Nh6 Nb2 16.Nc7 Ke7+–; B) 13.Qa5+–) 12...Nd5+/– 13.e4 a6 14.Nd7 Kd7? (better is 14...Nd7 15.ed5 ab5 16.Bb5 ed5 17.Bd7 Kd7 18.Qd5 Ke8 19.Qb7 Qe6 20.Kf1 Qa6 21.Qa6 Ra6+–) 15.ed5+– ab5 16.Bb5 Kc7 17.Rc1 b6 18.Qc4 Bd6? (18...Qg5 19.de6 Qg2+–) 19.d4 ed5 20.Qc2 (better is 20.Qd5 Qe6 21.Qe6 fe6 22.dc5 bc5 23.a4+–) 20...Ra2 21.dc5 bc5 22.Qb1 Rha8 23.h3 (23.Rc2 Qe6 24.Be2 Qe4+–) 23...Qe6 24.Kd1 f6? 25.Re1+– Qf7 26.Bd4 c4? 27.Bc4! dc4 28.Qb6 Kc8 29.Qc6 Bc7 30.Re8 Qe8 31.Qe8 Kb7 32.Rb1 Ka6 33.Qb5 (33.Qa8) 1–0. Taus,Martin (2170) – Bester,Kazimierz, 40. LSS No Engine Cup Preliminary, 2011.

6.cb5 g6 7.d4 Bg7 8.Nf3 Nbd7 9.Bd3 0–0 10.0–0 Ne8? 11.Ba3+– Nef6 12.Bf8 Qf8 13.Nbd2 Nb6 14.a4 Nbd7 15.Qb3 b6 16.Rac1 Ne8 17.Rc3 Bb7 18.Qa3 Qa3 19.Ra3 e5 20.de5 Ne5 21.Ne5 Be5 22.f4 Bd6 23.Rc3 Bc5 24.Nf3?? Be3=+ 25.Kh1 d4 26.Rc4 Bd5 27.Rc2 Bb3 28.Rb2 Bd5 29.Ne5 Rc8 30.Rc2 Rc2 31.Bc2 f5 32.Nd3 Bc4 33.h3 Nd6 34.Rf3 Bd5 35.Rf1=+ Ne4 36.Kh2 Nd2 37.Rd1 Bc4 38.Kg3 Kg7 39.Ne5 Be2 40.Rd2 Bd2 41.Nd3 Bd3 42.Bd3–/+ Kf6 43.Kf3 g5 44.fg5 Bg5 45.g3 h5 46.g4 hg4 47.hg4=+ fg4 48.Kg4 Be3 49.Kf3 Ke5 50.Ke2 Kd5 51.Kd1 Kc5 52.Bc2 Kc4 53.Ke2 Kc3 54.Bb1 Kb2 55.Bd3 Kb3 56.Kd1 Ka4 57.Kc2 Kb4 58.Kb2 Bd2 59.Kc2 Bc3 60.Kb1 Bd2 61.Kc2 Be3 62.Kb2 Bd2 63.Kc2 Bc3 64.Be2 Kc5–/+ 65.Kb3 Kd6 66.Bc4 Kc7 67.Ka4 Kd6 68.Bd3 Ke5–+ 69.Kb3 Kf4 70.Kc2 Ke3 71.Bc4 Ba5 72.Bf1 Kf2 73.Bc4 Ke1 74.Bd3 Kf2 75.Bc4 Ke3 76.Bf1 ½–½. Melzig,Ernst – Bielefeld,Guenter, Bad Sooden Allendorf Senior op, 2004.

6.cd5 Qd5 7.Nc3 Qd8 8.Bb5 Nfd7 9.Ne4 a6 10.Ba4 b5 11.Bb3 (11.Bc2 Nb6=) 11...Bb7+= 12.Qg4 f6?? (better is 12...Nc6 13.Qh5 Nb4 14.Be6 Qe7–/+) 13.Qe6+– (13.Be6?! Qe7+–) 13...Qe7 14.Nd6 (14.Nd6 Kd8 15.Nb7 Ke8 16.Nd6 Kd8 17.Nf7 Ke8 18.Nh8 Qe6 19.Be6+–) 1–0. forsetinn (1680) – anti_monarch, gameknot.com, 2013.

6.cb5 a6

7.a4 ab5 8.ab5 Ra1 9.Ba1 Qa5 10.Bf6 gf6 11.Nc3 Bg7 12.Nf3 f5 13.Qb3 Bc3 14.Qc3 Qc3 15.dc3 0–0 16.Bd3 e5 (16...Kg7!?+/–) 17.Ne5+– Nd7 18.Nd7 Bd7 19.0–0 (19.Ke2!?+–) 19...f4 20.ef4 f5? (better is 20...Rc8+/–) 21.c4+– dc4 22.Bc4 Kg7 23.Re1 Kh6 (better is 23...Kf6+–) 24.Re7 Bc8 25.f3 b6 (25...Rd8 26.Be6+–) 26.Be6 Be6 27.Re6 Kg7 28.Rb6 h5 29.Rc6 Rd8 30.b6 Rd1 31.Kf2 Rd2 32.Ke3 (better is 32.Kg3 h4 33.Kh3 Rb2+–) 32...Rg2 33.b7 Rb2 34.Rc7 Kf6 35.Kd3 Rb3 (35...Ke6+–) 36.Kc4 Rf3 (36...Rb1+–) 37.b8Q Rf4 38.Kd5 Kg5 (38...Rd4 39.Kd4 f4 40.Qf8 Kg5 41.Rg7 Kh4 42.Qf4 Kh3 43.Qg3) 39.Qg8 Kh4 40.Qg3 1–0. olawoj – aderp, internet, 2012.

7.a4 ab5 8.ab5 Ra1 9.Ba1 Bb4 10.Nf3 0–0 11.Be2 Qa5 12.Bc3 Bd7 Attacking the isolated pawn on b5 13.Bb4 Qb4 14.Nc3 Ne4 15.Ne4 de4 (worse is 15...Qe4 16.d4+=) 16.Nd4 e5 17.Nc2 Qb3 18.Na1 Qb2 19.Nb3 Be6 20.Nc5 Bd5 21.0–0 Rc8 22.Na4 Qb4 23.Nc3 Bb3?? (better is 23...Rd8=) 24.Qb1+– Qa3 25.Qe4 Re8 26.Qb7 Qb2 (26...Qd6 27.d3+–) 27.Ne4 (27.Rb1 Qa3+–) 27...Qa2 28.Nd6 Rf8 29.Nc8 Qd2 30.Bf3 (30.Bg4 Rd8 31.Qc7 Bd1 32.Bd1 Qd1 33.Qb8 Qd7+–) 30...Qd7 31.Qb8 Rc8 32.Qe5 Bc4 33.Bc6 Qd3 34.Ra1 f6 35.Qd4 (35.Qh5 Rb8+–) 35...Qb3? (better is 35...Bb5!? 36.Bd5 Kh8+–) 36.Qd1 Qb2 37.Bd5 Bd5 38.Qd5 Kh8 39.Rd1 h6 40.g3 Rb8 41.Qe4 (better is 41.Qf5+–) 41...Qb5+/– 42.h4 Qb7?? (42...Re8 43.Qg4+/–) 43.Qf5 (better is 43.Rd8! Rd8 44.Qb7+–) 43...Qc8 44.Qg6 Qb7 45.Qf5 Qc8 46.Qd3 Qb7 47.Ra1 Qf3 48.Qd6 Rb2 49.Qd8 Kh7 50.Qd3 Kh8 51.Qf1 Kh7 52.Qd3 Kh8 53.Rf1 Qb7 54.Qg6 Qf3 55.Qd3 Qb7 56.Rd1 Qb8 57.Qf5 Rb5 58.Qg6 Rb2 59.Rd7 Rb7?? (better is 59...Qf8+/–) 60.Qg7 1–0. mete61 – szachofan1, internet, 2013.

7.ba6 Na6 8.Bb5 Nd7 9.Nc3 Nac5 10.Rc1 Bd6 11.d4 Na6 12.Nf3 0–0 13.0–0 Nb4 14.Qb3 Nb6 15.Ne5 f6 16.a3 fe5 (< 16...Be5 17.de5 (17.ab4?! Bd6=) 17...Na6 18.ef6 Rf6 19.Ne2+/–) 17.de5 Be5 18.ab4 Qf6 (better is 18...Bd7!?=) 19.f4+/– Bd6 20.Nd5! Qd8 (20...ed5 21.Bf6) 21.Qc3 Rf7 22.Be8 Nd5 23.Bf7 Kf7 24.Qg7 Ke8 25.Qh8 Kd7 26.Qh7 Qe7 27.Qe4 Nb4 28.Be5 Nd5 29.Bd6 Qd6 30.h3 Qb6 31.Rfd1 Ra3? (better is 31...Kd8 32.f5! Qd6+–) 32.Rd5 ed5 33.Qh7 (< 33.Qd5 Ke7 34.Qg5 Kf7 35.Qh5 Kg7 36.Qe5 Qf6 37.Rc7 Kg6 38.Qe8 Kh6+–) 33…Ke8 (33...Kd6 34.Qh6 Be6 35.Qf8 Kd7 36.Qa3 Bf5+–) 1–0. Bonetti,Shane – nimzoman, ICC, 2002.

6.cb5 Bb4

7.Nf3 0–0 8.Be2 Bd7 9.a4 a6 10.Qb3 Ba5 11.0–0 Ne4 12.Nc3 Nc3 13.dc3 Qb6 14.c4 dc4 15.Bc4 h6 16.Bc3 (16.Rfd1!?+/–) 16...Bc3+= 17.Qc3 ab5 18.ab5 Ra1 19.Ra1 Bb5? (19...Rc8 20.Qb3+=) 20.Rb1?? (20.Qb3 Rd8 21.Bb5 Na6+–) 20...Qc5?? (better is 20...Rc8 21.Qb4 Rc4 22.Qc4 Bc4 23.Rb6 Bd5+=) 21.Rb5+– Qc6 22.Rb1 Nd7 (22...Rc8 23.Ne5 Qe4 24.Rd1+–) 23.Rc1 (23.Nd4 Qd6+–) 23...Nc5 24.Be2 Rc8 25.Ne5 Qc7 26.Rd1 Ne4 (26...Na4 27.Qc7 Rc7 28.Rd8 Kh7 29.h4+–) 27.Qc7 Rc7 28.Bd3 (better is 28.Rd8!? Kh7+–) 28...Nc5 29.Bb1 b5?? (29...Kf8+–) 30.Rd8 1–0. Valpa – Epenz, playchess.de, 2005.

7.Nf3 0–0 8.Be2 Bd7 9.a4 a6 10.Qb3 Be7 11.0–0 ab5 12.ab5 Ra1 13.Ba1 Qa5 14.Nc3 Qb4 15.Qc2 Be8 16.Rb1 Qd6 17.Bb2 Nbd7 18.Ra1 Nb6 19.Ba3 Qd7 20.Bb2 Qd6 21.Bf1 Nfd7? (better is 21...Qc7+=) 22.Ba3+– (22.Ba3 Qa3 23.Ra3 Ba3 24.Qa2+–) 1–0. kannisogoet – basjie, internet, 2013.

7.Nf3 0–0 8.Be2 Nbd7 9.0–0 a6 10.Qa4 Be7 11.Nc3 Nc5 12.Qd4 ab5 13.Nb5 b6 14.Qf4 Ba6 15.a4 Qe8 (15...Nfe4!?=) 16.Nc7+/– Qb8 17.Ba6 (worse is 17.Na8 Be2 18.Qb8 Rb8+=) 17...Na6 18.Na8 Qa8 (18...Qf4!? 19.ef4 Ra8+–) 19.a5 ba5 20.Ra5 Qc6 21.Rfa1 Nb4 22.Bf6 gf6 23.Ra7 Rc8 24.h3 (24.Re7? Qc1 25.Ne1 Qa1–+) 24...Nd3?? (24...Qd6 25.Ra8 Qd8 26.Rc8 Qc8 27.Qg3 Kf8+–) 25.Qg4 Kf8 26.Qh4 Ke8 (26...Kg7 27.Re7 Qd6 28.Rea7+–) 27.Qh7 Nc1 (27...Rc7+–) 28.Qg8 1–0. pcmvr – Scylla, playchess.de, 2004.

7.Nf3 0–0 8.Be2 Ne4 9.0–0 (9.0–0 Nd7 10.Qc2=). Feldborg,Brian (2215) – Debbeler,Adrian (2005), remoteschach.de, 2004.

7.f4 0–0 8.Nf3 Ne4 9.Be2 Qa5 10.0–0 Bd7 11.a4 a6 12.d3 Nc5 13.Nd4 Qd8 14.Ba3 Ba3 15.Na3 ab5 16.Nab5 Bb5 17.ab5 Nbd7 18.Ra8 Qa8 19.Qe1 Qa4 20.h4 e5 21.fe5 Ne5 22.Qc3 Ned7 23.Nf5 Ne6 24.d4 Nf6 25.Bf3 Qb5 26.Ne7 Kh8 27.h5 h6 28.Qc2 Qd7 29.Nf5 Rc8 30.Qd3 b5 31.Be2 b4 32.Nh6 gh6 33.Rf6 Kg7 34.Qf5 Rh8 35.Bb5 Qb5 36.Rf7 Kg8 37.Qg6 Ng7 38.Qg7 1–0. elsh1403 (1635) – rexr, internet, 2014.

6.cb5 b6

7.Nf3 Bb7 8.Be2 Nbd7 9.0–0 Bd6 10.a4 0–0 11.d4 Ne4 12.Nbd2 Ndf6 13.Rc1 Rc8 14.Qb3 Qe7 15.h3 h6 16.Ne5?? (better is 16.Qd3=) 16…Nd2–+ (16...Nd2 17.Qd1 Nf1 18.Qf1 Rc1 19.Qc1 Rc8–+) 0–1. emeryt85 – blamaz, internet, 2013.

7.Nf3 Bb7 8.Be2 Nbd7 9.0–0 Bd6 10.a4 Bb8 11.Ba3 Qc7 12.Nc3?? (better is 12.d4+=) 12...d4!–+ 13.ed4 (13.ed4 Bf3 Combination; 13.Nd4 Qh2 mate Mate attack) 13...Bf3 14.g3 Bb7 15.Rc1 Qd8 16.d3 (better is 16.Bf3!? Bf3 17.Qf3–/+) 16...Nd5 17.Ne4 N7f6 0–1. cogit – rafal1975, internet, 2013.

7.Nf3 Bd6 8.Be2 0–0 9.0–0 a5 10.a4 Nbd7 11.d4 Bb7 12.Qb3 Rc8 13.Nbd2 Qe7 14.Ba3 Ne4 15.Bd6 Qd6 16.Rfc1 f5 17.Bd3 h6 18.h3 g5 19.Be4 fe4 20.Ne1 Qe7 21.Rc8 Bc8 22.Qa3 Qf7 23.f3 h5 24.Qd6 ef3 25.Ndf3 g4 26.hg4 hg4 27.Qg3 Qg7 28.Nh2 e5 29.Ng4 ed4 30.Kh2 de3 31.Ne3 Qg3 32.Kg3 Bb7 33.Rc1 Nc5 34.Nf3 Na4 35.Rc7 Nc5 36.Ne5 d4 37.N3c4 d3 38.Nd3+/– Bd5 39.Nc5 bc5? 40.Rc5 Bc4+/– 41.Rc4 Rb8 42.Rc5 a4 43.Rc4 a3 44.Ra4 Rb5 45.Ra3 Kg7 46.Ra4 Kg6 47.Kg4 Rb6 48.g3 Rc6 49.Kh4 Rb6 50.g4 Rc6 51.Ra8 Rc1 52.Ra6 Kg7 53.Kh5 Rh1 54.Kg5 Rb1 55.Ra7 Kg8 56.Kh6 Rb6 57.Kh5 Rb1 58.g5 Rb6 59.g6 Rb8 60.Kh6+– Rc8 61.Ra6 Re8 62.g7 1–0. carocan (1715) – pionas54 (1695), kurnik, 2011.

7.Nf3 Bd6 8.Be2 0–0 9.0–0 a6 10.Nc3 Bb7 11.Rc1 Nbd7 12.ba6 Ba6 13.Ba6 Ra6 14.Nb5 Nc5 15.Bf6+= gf6 16.d4 Ne4 17.Nd2 Nd2 18.Qd2 Re8 19.Rc6 Bb8 20.g3 e5 21.Rfc1 e4 22.Qe2+– Ra5 23.Rc8! Qc8 24.Rc8 Rc8 25.Qg4 Kf8 26.Qc8 (26.Qc8 Kg7 27.a4 Bg3 28.Qg4 Kf8 29.Qg3 Ra4 30.Nc7 Ra1 31.Kg2+–) 1–0. pcmvr (2875) – jasperchess (2135), net–chess.com, 2009.

6.cb5 Bd6

7.a4 0–0 8.Nc3 Nbd7 9.Nf3 e5 10.Be2 e4 11.Nd4 Ne5 12.0–0 Nc4 13.Bc4 dc4 14.Rc1 Ng4 (14...Bg4!? 15.Qc2 Qe7+=) 15.h3= (worse is 15.Ne4 Bh2 16.Kh1 Be5–+) 15...Nf6 16.Nce2 Qe7 17.Rc4 Qe5 18.f4 ef3 19.Nf3?? (better is 19.Rf3 Qh2 20.Kf1 Qh1 21.Ng1=) 19...Qb2–+ 20.Rh4 Be6 21.Nf4 Bf4 22.Rf4 Rfd8 23.d4? (23.Qb1 Qa3 24.Qb4–+) 23...Nd5 24.Rh4 (24.Rf2 Qa3 25.Rh4–+) 24...Ne3 25.Qd2 Qd2 26.Nd2 Nf1 27.Nf1 Rac8 28.Ng3 (28.Ne3 Bb3–+) 28...g5 (better is 28...Rc4!? 29.Ne2–+) 29.Re4 Rc4 30.Nh5 Rcd4 31.Re5 h6 32.Nf6 (32.Re4 Re4 33.Nf6 Kg7 34.Ne4 Rd4–+) 32...Kg7 33.Ng4 Bg4 34.hg4 Ra4 35.Rc5 (35.Re7 b6–+) 35...b6 36.Rc7 Rd5 0–1. elektrooon – radegast1 (1755), internet, 2013.

7.a4 0–0 8.f4 b6 9.Nf3 Bb7 10.Be2 Nbd7 11.0–0 Rc8 12.Ne5 Qc7 13.d4 Ne4 14.Nd2 Ndf6 15.Rc1 Qe7 16.Ndf3 Ba3 17.Qb3 Bb2 18.Qb2 Qd6 19.Rc8 Rc8 20.Rc1 Rc1 21.Qc1 h6 22.Nc6 a6 23.Nfe5 a5 24.Bf3 Kh7? 25.Kf1 Kg8 26.Ke2 g6 27.g4 Kg7 28.h4 g5 29.hg5 hg5 30.Be4 Ne4 31.fg5 Ng5 32.Qf1 f6 33.Qf4 Ne4 34.Nd3 Qf4 35.Nf4 Bc8 36.Ne7 Bd7 37.Nc6 Nc3 38.Kd3 Na4 39.Nb8? Bb5–+ 40.Kd2 Bc4 41.Ne6 Kg6 42.Nd7 Kh6?? 43.Nf6= Kg6 44.Nd7 Kf7 45.Ne5?? Ke6–+ 46.Nc4 dc4 47.Kc2 b5 0–1. elsh1403 (1610) – equalizer (1690), kurnik, 2011.

7.Nf3 Bd7 8.a4 0–0 9.Nc3 Qc7 10.Rc1 Rc8 (better is 10...Qa5=) 11.Nd5!+– Qa5 (11...ed5 12.Rc7 Discovered attack; 11...Nd5 12.Rc7 Discovered attack) 12.Nf6 gf6 13.Rc8 Bc8 14.Bf6 Bb4?? (14...Nd7 15.Bc3 Qd8 16.Qc2+–) 15.Bd3 (better is 15.Ne5 Bd2 16.Qd2 Qd2 17.Kd2+–) 15...Nd7 16.Ba1 Nc5 17.Be2 (17.Bc2 f5+–) 17...Ne4? (better is 17...Qa4!? 18.Qb1 Qb3+/–) 18.0–0 b6?? (18...Nd2 19.Nd2 Bd2 20.Qc2+–) 19.d3 (19.Ne5 Bd6 20.Bd3 Be5 21.Be5 f6 22.Qg4 Ng5 23.Bf6 Qb5 24.ab5 e5 25.Qg5 Kf7 26.Qg7 Ke6 27.Qe7 Kd5 28.Qe5) 19...Nd6?! (19...Nc3 20.Bc3 Bc3+–) 20.Ne5 Bb7 21.Bf3 Rb8 (21...Bf3 22.Qf3 Rc8+–) 22.Bb7 Rb7 23.Nc6 Qa4 (23...Ne8+–) 24.Qa4 1–0. typ48 – rafaroque, internet, 2013.

7.Nf3 h6 8.d4 0–0 9.Nc3 Bd7 10.a4 a6 11.Bd3 ab5 12.ab5 Ra1 13.Qa1 Qb6 14.0–0 Bb4 15.Rb1 Bc3 16.Bc3 Ne4 17.Be4 de4 18.Ne5 Qd6?? (18...Rc8 19.Ba5 Qd6 20.Rc1 Rc1 21.Qc1=) 19.d5 (19.Nd7?! Qd7 (19...Nd7? 20.Bb4 Qb6 21.Bf8 Nf8 22.Qa3+–) 20.Qb2 Qd5=) 19...ed5? (19...Qd5 20.Nd7 Combination; 19...ed5 20.Bb4 Combination) 20.Ng4?? (better is 20.Bb4!? Qc7 21.Bf8 Kf8 22.Rc1+–) 20...f6?? (better is 20...Bg4 21.Bb4 Qd8 22.Bf8 Qf8–+) 21.Bb4+/– Qe6 22.h3?? (better is 22.Bf8 Kf8 23.h3+/–) 22...Rc8–/+ 23.Nh2 (better is 23.Qa5–/+) 23...Rc2?? (better is 23...Bb5 24.Bc3 Qa6–+) 24.Qa4 Qf5?? (better is 24...Rc8 25.Qa1 Bb5–+) 25.Rf1 (better is 25.Qc2 Bb5 26.Qc7+–) 25...Rc4–/+ 26.Qa8 Rb4 27.Qb8 Kh7 28.f3 (28.Qb7 Rb2 29.f4–/+) 28...Rb5 29.fe4 Qe4 30.Kh1 (30.Qf4 Rb2 31.Rf2 Rb1 32.Rf1 Rf1 33.Nf1 Qf4 34.ef4 b5–+) 30...Qe3 31.Qd6 Bc6 32.Qe7 Qe7 0–1. captainevans – walmit, internet, 2013.

7.f4 0–0 8.Nf3 Ne4 9.Be2 Nd7 10.0–0 Ndf6 11.d3 Nc5 12.h3 Qb6 13.a4 a6 14.Nc3 Bd7 15.Ne5 ab5–/+ 16.Nd7 Nfd7 17.ab5 Nf6 18.d4 Nce4 19.Na4 Qc7 20.Rc1 Qa5 21.Ra1 Qb4 22.Qc2 Rfc8 23.Qb1? Nd2 24.Qd1 Nf1 25.Bf1 Ra4! 26.Ra4 Qb2 27.Ra7 Ne4 28.Rb7 Qf2 29.Kh2 Qg3 30.Kg1 Qe3 31.Kh2 Bf4 32.g3 Qg3 33.Kh1 Qh2 0–1. elsh1403 – sovapavel (1730), kurnik, 2011.

7.Nf3 0–0

8.Nc3 Nbd7 9.Qc2 Nc5 10.Bd3 Bd7 11.0–0 Rc8 12.Ba3 Qe7 (12...Nd3?! 13.Bd6 Bb5 14.Bf8 Qf8 15.Qb1=) 13.Bc5 Bc5 14.Ne5 d4 15.Nd7 Qd7 16.Ne4 Ne4 17.Be4 f5 18.Bf3 de3 19.de3 Be3 20.Qe2 (20.fe3 Rc2 Discovered attack) 20...Bd4 21.Rad1 e5 (better is 21...Rc7–/+) 22.g3?? (better is 22.Qe5! Rfd8 23.Qe2=) 22...Rfd8 23.Rc1 e4 24.Bg2 Rc1 25.Rc1 Bb6 26.Bf1 Qd4 27.Qc2 e3 28.fe3?? (better is 28.Qf5 Qd2 29.Rc2 ef2 30.Kg2–/+) 28...Qe3–+ 29.Kh1 Qg1 0–1. dangervid (1800) – grazic66 (1740), gameknot.com, 2013.

8.Be2 a6 9.0–0= ab5 10.Bb5 Bd7 11.Nc3 Nc6 12.a4 e5 13.Ne2 e4 14.Nfd4 Bh2?? 15.Kh1?? Ng4 16.g3–/+ Qg5 17.Kg2 Qh6 18.Rh1=+ Rae8 19.Nf4= g5 20.Nd5+/– Ne3 21.fe3 Qh3 (21...Qh3 22.Kf2 Qg3 23.Kf1 Bh3 24.Ke2 Qg2 25.Ke1 Bg3#) 0–1. Forman,Stepan (1935) – Prokop,Jan (1790), CSS–ch U16 Svetla, 1995.

8.Be2 a6 9.Nc3 Nbd7 10.0–0 Nb6 11.a4 Bd7 12.Qb3 a5 13.d4 Rc8 14.Ba3 Ba3 15.Qa3 Re8 16.Ne5 Qe7 17.Qe7 Re7 18.Rfc1 Be8 19.Nd1 Rec7 20.Rc7 Rc7 21.Bd3 Ne4 22.f3 Nc3 23.Nb2 f6 24.Ng4 h5 25.Nf2 Nca4 26.Na4 Na4 27.h4 Nb2 28.Ra5 Kf7 29.b6 Rc6 30.e4 Nd3 31.Nd3 de4 32.fe4 Rb6 33.Rc5 Rc6 34.d5 ed5 35.ed5 Rc5 36.Nc5 b6 37.Ne6 g6 38.Kf2 Ke7 39.g3 Bf7 40.Nf4 g5 41.hg5 fg5 42.Nh3 Kf6 43.d6 Be6 44.Ng1 Bg4 45.d7 Ke7 46.d8Q Kd8 47.Ke3 Kd7 48.Ke4 Kd6 49.Kd4 b5 50.Ke4 Kc5 0–1. Gerold,Guenter – Joedicke, corr, 1997.

8.Be2 b6 9.0–0 Bb7 10.a4 Nbd7 11.d3 e5 12.Nbd2 e4 13.de4 de4 14.Nd4 Rc8 15.Qb3 Bb8 16.Rac1 Nc5 17.Qb4 Qd6 18.g3 Nd5 19.Qa3 f5 20.N2b3 Nd3 21.Qd6 Bd6 22.Bd3 ed3 23.Ne6 (23.Rfd1+=) 23...Rfe8?? (better is 23...Rf7+=) 24.Ng7+/– Rf8 25.Nh5?? (25.Rc8!? Bc8 26.Rd1+/–) 25...Nb4 (25...Kf7 26.Rc8 Rc8 27.Ng7=) 26.Rc8 Rc8 27.Nd4 Be5 28.f4?? (better is 28.Ba3 Bd4 29.ed4–/+) 28...Bd4–+ 29.Bd4 Be4?? (29...d2 30.Bb2 Nd3–+) 30.Nf6= Kf7 31.Nd7? (better is 31.Ne4 fe4 32.Rd1–/+) 31...Rc2 32.Ne5 Ke6 33.Rf2 Rc1 34.Rf1 d2 35.a5 d1Q 36.Rd1–+ Rd1 37.Kf2 Rh1 38.ab6 Rh2 39.Ke1 ab6 40.Bb6 Nd3 41.Kd1 Ne5 42.fe5 Ke5 43.Bc7 Kd5 44.b6 Rb2 45.Kc1 Rb5 46.Kd2 h5 47.Kc3 Kc5 48.Kd2 Rb2 49.Kc3 Rc2 50.Kb3 Re2 51.Kc3 Re3 52.Kd2 Rd3 53.Ke2 Kc6 54.Kf2 Rf3 55.Ke2 Kb7 56.Kd2 Ra3 57.Ke2 Kc6 58.Kf2 Kb5 59.Ke2 Kc4 60.Kf2 Kd3 61.Kg1 Ra2 62.Bf4 Rb2 63.Kf1–+. avinoam – pionas54 (1655), internet, 2013.

8.Be2 Nbd7 9.0–0 e5 10.Nc3 Re8 11.d3 Qe7 12.Rc1= a6 13.a4 e4 14.de4 de4 15.Nd4 Qe5 16.g3 Nc5 17.ba6 ba6 18.Qc2 Bg4 19.Bg4 Ng4 20.h3 Nf6 21.Ncb5?? Nd3?? 22.Nf5 Qf5 23.Nd6 Qh3 24.Bf6 (24.Bf6 Nc1 25.Ne8 Re8 26.Rc1 gf6 27.a5–/+; 24.Ne8 Re8 25.Rcd1 Ng4–+). Fournier,Frederic – Haertig,Manfred, TT–06 TSC, 2003.

8.Be2 Nbd7 9.0–0 e5 10.d3 b6 11.Nbd2 Bb7 12.Rc1 a6=+ 13.a4 ab5 14.ab5 Qe7 15.Qb3 Nc5 16.Qc2 Na4 17.Ba1 Rfc8 18.Qb1 Nc5 19.d4= ed4 20.Bd4 Nfe4 21.Rfd1 Ne6 22.Bb2 N6c5 23.Ba1 Re8 24.Bd4 Ra4 25.Qb2 Ne6 26.Nf1 Ba3 27.Qc2= Rb4 28.Ra1 Nd4 29.Nd4 Rb2 30.Qd3 Bc5 31.Nd2 Qh4 32.Ne4? de4–+ 33.Qc4 Bd4 34.Rd4? Rc8 35.Rad1 h6 36.g3 Qf6 37.Rd6 Qd6?? 38.Rd6+/– Rc4 39.Bc4 ½–½. Scholz,Guenter – Kosmol,Horst, corr Germany, 2001.

8.Be2 Nbd7 9.Nc3 Re8 10.0–0 Nf8 11.Rc1 Bd7= 12.Qb3 Ng6 13.Ba3 Bc7 14.d4+/– Rc8 15.Bd3 Bb8 16.h3 h6 17.Rfe1 Nf8 18.Ne5+– N6h7 19.Na4 f6 20.Nd7 Qd7 21.Nc5 Qd6 22.f4 Qb6 23.Rc2 f5 24.Rec1 Bd6 25.Na4 Rc2 26.Nb6 Rc1 27.Bc1 ab6 28.Ba3 Ba3 29.Qa3 1–0. pan kao – werka, rancho, 2009.

8.Be2 Re8 9.0–0 e5 10.a4 (10.Nc3 Bg4=) 10...Bf5 11.d3 Nbd7 12.Nbd2 (12.a5 Rc8=+) 12...h6 (12...Qb6 13.d4 e4 14.Nh4=+) 13.h3 (13.Rc1 a6=) 13...Rc8=+ 14.e4 (14.a5 Qc7=+) 14...de4–/+ 15.de4 Be6 (15...Be4!? 16.Ne4 Ne4–/+) 16.Re1 (16.Rc1 Qe7=) 16...Qe7 (16...Bb4 17.Rb1 Qa5 18.Bd3=+) 17.Nh2 (17.a5 Red8=) 17...Bb4=+ 18.Bd3 (18.Nhf3 Nc5 19.Be5 Nfe4 20.Ne4 Ne4–/+) 18...Nb6 (18...Qd6 19.Re3–/+) 19.Qe2 (19.Nhf3 Bc3 20.Bc3 Rc3=+) 19...Nfd7 (19...Qd6 20.Red1=+) 20.Rec1 (20.Nhf3 Nc5 21.Bc2 Nbd7=) 20...Nc5 (20...Rc1 21.Bc1 Bc3 22.Ba3–/+) 21.a5 (better is 21.Nhf3!?=+) 21...Nd3–+ 22.Qd3 Rcd8 (23.Qg3 Bd2 24.Be5 f5 25.ab6 Bc1 26.Rc1 ab6 27.ef5 Bf5–/+; 22...Red8!? 23.Qg3 Bd2 (< 23...Rd2 24.ab6 Rc1 25.Bc1 Rd1 26.Nf1+=) 24.Be5 Rc1 25.Rc1 Qf8–+) 0–1. algernon (2395) – gtan (2350), net–chess.com, 2007.

7.Nf3 Nbd7

8.Nc3 0–0 9.Be2 e5 10.d4 e4 11.Nd2 Re8 12.Qb3 Nb6 13.a4 Be6 14.Ba3 Ba3 15.Ra3 Rc8 16.0–0 Nbd7 17.f4 ef3 18.Bf3 Nb6 19.a5 Nc4 20.Nc4 Rc4 21.Be2 Rc8 22.Bf3 Qd7 23.Na4 Ne4 24.Be4 de4 25.Qb2 Bc4 26.Rb1 Qf5 27.b6? a6?? 28.Nc5+= Qd5 29.Rc1 Bb5 30.Rac3 Bc6 31.Qf2 Rcd8 32.R3c2 Rd6 33.Qf4 Rdd8 34.Qc7 Rc8 35.Qf4 Rcd8 36.Rf2 Rd6 37.Qf5 Qf5 38.Rf5 g6 39.Rf4 f5 40.g4 fg4 41.Rg4 Rf6 42.Rf1 Rf1 43.Kf1 Re7 44.Ke2 Kg7 45.h4 h6 46.Kd2 Bd5 47.Kc3 Kf6 48.Rf4 Kg7 49.Kb4 Bc6 50.Kc4+– g5 51.hg5 hg5 52.Rg4 Kg6 53.d5 Bb5 54.Kd4 Kh5 55.Rg1 Bd3 56.d6 Re8 57.Nb7 Bb5 58.Nc5 Rd8 59.Kd5 g4 60.Ne4 1–0. Koester,Roman (2120) – Manutcher,Arvin, Frankfurt–ch, 2004.

8.Nc3 0–0 9.Be2 e5 10.d4 e4 11.Nd2 Re8 12.Qb3 Nb6 13.a4 Be6 14.a5 Nbd7 15.a6 b6 16.Ba3 Bc7 17.Rc1 Nf8 18.Na2 Ng6 19.Nb4 Qd7 20.Qc3 Bd6= 21.Nc6 Ba3 22.Qa3 Bg4 23.h3 Be2 24.Ke2 h5 25.Nb1 Nh4 26.Rhg1 g5 27.Nc3 Ng6 28.Qb3 g4 29.hg4+/– Qg4 30.Ke1 Qf5 31.Rc2 Kg7 32.Na4 Re6 33.Nb4 h4 34.Rc7 Qg5 35.Kf1 Ne7 36.Nc3+= Qf5 37.Ne2 Ng6+= 38.Nc3 Ng4 39.Nd1+/– Rd8 40.Ra7 Rf6 41.Qc2 Nh2 42.Ke1 Qg4 43.Qc7 Nf3! 44.gf3 Qg1 45.Kd2 Rdd6 46.Nc6? Rc6! 47.bc6 h3 48.Rb7 h2 49.Qh2 Qh2 50.c7?? Rc6 51.a7 Nh4 52.fe4 de4 (52...de4 53.c8Q Nf3 54.Ke2 Rc8 55.Rc7 Qg1 56.Rf7 Kf7 57.a8Q Qe1#) 0–1. Koester,Roman (2120) – Boehmer,Christian (2015), Oberliga Ost–B, 2004.

8.d4 a6 9.Nc3 0–0 10.Be2 e5 11.de5 Ne5 12.Nd5 Nd5 13.Ne5 Bb4 14.Kf1 ab5 15.Qd4 Ba3? 16.Rd1?? Ra4= 17.Qd2 Bb2 18.Qb2 Be6 19.Kg1 Qa5 (19...Qa5 20.Ra1 Qc3 21.Qc3 Nc3–/+) 0–1. De Visser,Arno – de Lange, Bergenstrand, 1982.

8.Be2 0–0 9.0–0 e5 10.d3 Re8 11.Nbd2 Nb6 12.a4 Bf5 13.a5 Nbd7 14.e4 de4 15.de4 Be4 16.Ne4 Ne4 17.Qd5 Ndc5 18.Bc4 Qc7 19.b6 Qd7 20.ba7 Nf6 21.Qd2 Ra7 22.Rfd1 Nce4= 23.Qd3 Qc7 24.Bb5 Qc5 25.Qe2+/– Re7?? 26.Rac1+– Qb4 27.Rc8 Ne8 28.Be8 Rc7 29.Rc7 Bc7 30.Rd7 Nf6 31.Bf7 Kf8 32.Rc7 Ra5 33.h3 Ra2 34.Ba2 e4 35.Bf6 gf6 36.Qd2 Qd2 37.Nd2 e3 38.fe3 f5 39.Nf3 f4 40.Nd4 f3 41.Nf5 f2 42.Kf2 Ke8 43.Be6 h6 44.Rc8# 1–0. Nebe,Lutz (1620) – Petersen,Kay, Koblenz–ch (3), 1996.

8.Be2 0–0 9.0–0 e5 10.d4 e4 11.Nfd2 Re8 12.Nc3 Nf8 13.a4 Ng6 14.Re1 Be6 15.Nf1 Rc8 16.a5 Bb4 17.Qb3 Ba5 18.Ra3 Nh4 19.Rea1 b6 20.Na2 Bh3 21.g3 Nf3 22.Bf3 ef3 23.Bc3 Ne4 24.Ba5 ba5 25.Qd1 Bf1 26.Qf1? Rc2–+ 27.Nc1 Rf2 28.Qf2 Nf2 29.Kf2 Qd7 30.Nd3 Qb5 31.Kf3 Qd7 32.g4 Qe6 33.Nf4 Qe4 34.Kg3 h6 35.Rc3 Rb8 36.h4 Rb1 37.Ra5?? Rf1 38.Ng2 Qf3 39.Kh2 Rf2 (39...Rf2 40.Rc8 Kh7 41.Rh8 Kh8 42.Ra7 Qg2) 0–1. Lorenc,To1 (2140) – Drozdowski,K (2290), Karlovy Vary Open, 2011.

8.Be2 e5 9.a4 0–0=+ 10.d4 e4 11.Nfd2= Re8 12.Ba3 Ba3=+ 13.Ra3 a6 14.0–0 ab5 15.ab5 Ra3 16.Na3 Qa5 17.Qc1. Katalimov,Boris – Lilienthal,Andrei, Kislovodsk, 1967.

6.cb5 Bd7

7.a4 Qa5 8.Nf3 Bb4 9.Nc3 0–0 10.Be2 Ne4 11.Qb3 (11.Ne4 de4 12.Ng5 e5 13.Be5 Re8+/–) 11...Bc3 12.Bc3 Nc3 13.Qc3 Rc8?? (better is 13...Qc3 14.dc3 Rc8+=) 14.Qa5+– 1–0. popovicigelu – loser22 (1610), internet, 2012.

7.a4 a6 8.Nf3 ab5 9.ab5 Ra1 10.Ba1 Qa5 11.Bf6 gf6 12.Nc3 Bb4 13.Nd4 (13.Qc2!?=) 13...Bc3–/+ 14.dc3 Qc3 15.Qd2 Qd2 16.Kd2 0–0 17.Be2 Rc8 18.Rc1 Rc1 19.Kc1 e5 20.Nb3 b6 21.f3 Bc8 22.e4 d4 23.Bc4 Nd7 24.Bd5 Nf8 25.Nd2 Be6 26.Bc6 Nd7 27.Kc2 (27.f4 Nc5 28.f5 Bb3+=) 27...Kf8 28.Kd3 (28.f4!? Nb8 29.Nf3–/+) 28...Nc5 29.Ke2 Ke7 30.g3 Kd6 31.Kf2 (31.f4!?–+) 31...Nd3 32.Kg2 Nb4 33.Bb7 Kc5 34.Ba6 Na6 (34...Na2!? 35.f4–+) 35.ba6 Bd7 (35...Kc6 36.f4–+) 36.f4 (better is 36.a7!? Bc6 37.Kh3–/+) 36...b5–+ 37.fe5 fe5 38.Nf3 (better is 38.a7 Bc6 39.Kh3–+) 38...f6 39.Nh4 (39.g4 h6 40.a7–+) 39...b4 40.Nf3 b3 (better is 40...Bc6 41.Kh3 Be4–+) 41.Nd2 b2 42.Nb1 (42.a7 Bc6 43.Kf2–+) 42...Kb6 43.Kf2 (43.Kf3 f5 44.g4 f4–+) 43...Ka6 (better is 43...Bc6 44.a7–+) 44.Ke2 Ba4 45.Kd3 Kb5 46.h4 Kb4 47.g4 Kb3 48.Nd2 Ka2 49.g5 (49.Ke2 Bc6 50.Kd3 b1Q 51.Nb1 Kb1–+) 49...fg5 50.hg5 b1Q 51.Nb1 Kb1 52.Kc4 Kc2 53.Kd5 d3 54.Ke5 d2 55.Kf6 d1Q 56.e5 Qf3 57.Ke7 Qf5 58.e6 Qg5 59.Kd6 Qf6 60.Kd5 Kd3 61.Kd6 Kd4 62.Kc7 Kc5 63.Kb7 Qe7 64.Ka6 Qc7 65.e7 Qb6 0–1. avinoam – rksh, internet, 2012.

7.a4 Qb6 8.Nc3 a6 9.Rb1 ab5 10.Nb5 (worse is 10.ab5 Bd6+=) 10...Bb5 11.Bb5 Nc6 12.Bf6 gf6 13.Qf3 (13.Nf3 Qc7+=) 13...Bg7 14.Ne2 0–0 15.0–0 Qc7 16.Nf4 Ne5 17.Qg3 Kh8? (better is 17...Rfc8!?+=) 18.Nh5 (better is 18.d4!?+–) 18...Rg8 19.Ng7 (better is 19.d4!? Bh6 20.Qh3+/–) 19...Rg7 20.Qf4 Qe7 21.d4 (21.h3 Rg5+=) 21...Ng6?? (21...Rg4!? 22.de5 Rf4 23.ef4 Kg7–/+) 22.Qf3 (22.Qh6 f5 23.g3 f4+=) 22...Rag8 (better is 22...Nh4 23.Qh3 Ng2+=) 23.g3 Nh4 24.Qf4?? (better is 24.Qh5 Nf5 25.Rfc1+=) 24...Rg4–/+ 25.Qh6 Nf3 26.Kg2?? (26.Kh1 R4g6 27.Qh3 Nd2–/+) 26...Nd2 (better is 26...Rh4! 27.Qh4 Nh4 28.Kh1 Nf3–+) 27.Bd3 Nf1?? (better is 27...f5 28.Kh1 Ra8–/+) 28.Qh7 1–0. elektrooon – 7strateg, internet, 2013.

7.a4 Bd6 8.Nc3 0–0 9.f4 a6 10.Nf3 ab5 11.Bb5 Nc6 12.0–0 Qb6 13.Qe2 Bf4 14.Ba3 Rfe8 15.Bc6 Bc6 16.Rfb1 Qa7 17.Nd4 Be5–/+ 18.Ncb5 Bb5–+ 19.Qb5 Bd4 20.ed4 Qd4 21.Kh1 Ne4 22.h3 Nf2 23.Kh2 Qf4 24.Kg1 Qg3 25.Kf1 Ne4 26.Qe2 Qh2 27.Qg4 Nd2 28.Ke2 Nb1 29.Rb1 Qe5 30.Kd1 f5 31.Qg5 Qd4 32.Ke2 Qe4 33.Kf1 Qb1 (33...Qb1 34.Qc1 Qd3 35.Kg1 Rac8–+) 0–1. baovn21 – chytryharry, kurnik, 2011.

7.a4 Be7 8.Nf3 0–0 9.Be2 a6 10.0–0 ab5 11.ab5 Ra1 12.Ba1 Qa5 13.Nc3 Ne4 14.Ne4 de4 15.Nd4 Bf6 16.Nb3 Qd8 17.d4 ed3 18.Qd3 Ba1 19.Ra1 Qf6 20.Nd4 (20.Ra8 Qe7+/–) 20...Rd8 (better is 20...e5!? 21.Nb3 b6=) 21.Qe4+/– Be8 22.Rc1 Rd5? (22...b6!?+/–) 23.Rc8 Rd8 24.Rc7 (24.Qb7 Nd7+–) 24...Nd7 (better is 24...b6+/–) 25.Rb7?? (better is 25.Qb7 e5 26.Nc6+–) 25...Nc5–+ 26.Qf3 Nb7 (better is 26...Qf3 27.Bf3 Nb7 28.Bb7 e5–+) 27.Qb7+= Qe5 28.h3 Rb8 29.Qa6 h6 The pressure on the isolated pawn grows 30.b6 (better is 30.Bd3!?+=) 30...Qc5–/+ 31.b7 e5 (31...Qc1 32.Bf1 Qc7 33.Bd3 Qb7 34.Qb7 Rb7 35.f4–+) 32.Qa8? (better is 32.Nb3!? Qc6 33.Na5 Qc1 34.Bf1+=) 32...Qc7–+ 33.Nf5 Qb7 34.Qb7 Rb7 35.Nd6 Rb8 36.g3 Bd7 37.Bc4 Be6 38.Be6 fe6 39.Ne4 Rb4 40.Nc5 Kf7 41.Nd7 e4 42.Ne5 Kf6 43.Nd7 Ke7 44.Ne5 Kd6 45.Nf7 (45.Nf7 Kd5 46.g4–+). avinoam – rodolfodao, internet, 2013.

7.Nf3 a6 8.Qa4 Bd6 9.Be2 Qb6 10.Bf6 gf6 11.Nc3 Rg8 12.0–0 h6.

7.Nf3 a6 8.ba6 ba6 9.Be2 Bd6 10.Be5 Be5 11.Ne5 Nc6 12.Nd7 Qd7.

7.Nf3 a6 8.ba6 Na6 9.Be2 Nc5 10.Bd4 Bd6 11.Nc3 0–0 12.Qb1 Bc6.

7.Nf3 b6 8.a4 a6 9.Nc3 Bc5 10.d4 Bb4 11.Qb3 a5 12.Bd3 0–0 13.0–0 h6 14.Ne5 Bc8 15.Rac1 Nbd7 16.f4 (better is 16.Nc6!? Qe8 17.Nb4 ab4 18.Qb4+–) 16...Ne5+= 17.fe5 Nd7 18.Ne2 f6 (18...Qg5 19.Kh1+=) 19.e4 fe5 (19...Bd2 20.ed5 Bc1 21.Rc1 Ne5 22.de5 fe5+–) 20.ed5+– ed5?? (better is 20...Rf1 21.Rf1 Nf6 22.de6 Qe7+–) 21.Qd5 Kh8 22.Qa8 (22.Rf8 Bf8 23.Qe4 g6 24.Qa8 Nc5 25.dc5 Bc5 26.Rc5 bc5+–) 22...Rf1 (22...Nf6 23.de5 Qd3 24.ef6+–) 23.Rf1 (23.Kf1 Qf8 24.Kg1 Nc5 25.dc5 Bc5 26.Kh1 Qg8 27.Be5 Bg4+–) 23...Nf6 (23...ed4 24.Nf4 Ne5 25.Bf5+–) 24.Bf5 Nd7 (24...ed4 25.Nd4 Bc5 26.Kh1+–) 25.de5 Bc5 26.Bd4 Bd4 27.Nd4 Qc7 (27...Ne5 28.Nc6 Qg8 29.Qc8 Qc8 30.Bc8+–) 28.Nc6 1–0. captainevans – swiebodce2013, internet, 2014.

7.Nf3 Qb6 8.a4 Be7 9.Be2 a6 10.Bd4 Qa5 11.0–0 0–0 12.Nc3 Rc8.

7.Nf3 Qb6 8.Nc3 Be7 9.Bd3 h6 10.Na4 Qd8 11.Rc1 0–0 12.Be5 Be8 13.Bc7+= Qd7? 14.Ne5+– Qb5 15.Bb5 Bb5 16.Qb3 Nc6 17.Qb5 Ne5 18.Be5 b6 19.Rc7 Bd8 20.Rb7 Ng4 21.Bd6 Re8 22.Qe8 Kh7 23.Rf7 Nf6 24.Qe6 Rc8 25.Qf5 Kg8 26.Rf8# 1–0. pierre – Spasski65, internet, 2008.

7.Nf3 Qb6 8.Bd4 Bc5 9.Bf6 gf6 10.Nc3 Bd6 11.Rc1 Rg8 12.Qb3 h6.

7.Nf3 Qb6 8.Bf6 gf6 9.Nc3 Rg8 10.Rc1 Ba3 11.Rc2 h6 12.Nd4 Bd6.

7.Nf3 Be7 8.Be2 0–0 9.a4 b6 10.0–0 a6. algernon (2320) – rogeliovargas (2340), net–chess.com, 2004.

7.Nf3 Bd6

8.Bd4 0–0 9.Nc3 a6 10.Qa4 Ne4 11.Rc1 Nc3 12.Bc3 Qe8.

8.Bd4 a6 9.Nc3 0–0 10.Qa4 Qe7 11.Ne5 Rc8 12.Rb1 Be8.

8.Bd4 Bc8 9.Ne5 Nbd7 10.f4 0–0 11.Be2 Ne4 12.0–0 f6.

8.Bd4 Qe7 9.Ne5 0–0 10.Nc3 Rc8 11.Qf3 a6 12.Na4 Bc7.

8.Be2 0–0 9.0–0 Qe7 10.Be5 Rc8 11.d4 a6 12.ba6 Na6.

8.Be2 a6 9.ba6 ba6 10.Be5 Be5 11.Ne5 Bb5 12.Nc3 Be2.

8.Be5 Be5 9.Ne5= Ne4 10.Qg4 0–0 11.Nc3 f5 12.Qd1 Qf6.

6.cb5 Nbd7

7.Nf3 Bd6 8.a4 b6 9.Be2= Bb7 10.0–0 0–0 11.Na3 Rc8=+ 12.Nc2 Ne4 13.Ncd4 Ndc5 14.Nb3 Qe7 15.a5 Rc7 16.d3 Nb3 17.Qb3 Nf6 18.Ne5 Rfc8 19.ab6 ab6 20.f4 Nd7 21.Nd7 Qd7 22.Rfc1 h6 23.Rc7 Rc7 24.Kf2 Qc8 25.Bd4= Bc5 26.Be5 Rd7 27.Qb2 d4 28.ed4 Be7 (28...Be7 29.Rc1 Qf8=). Gross,Wilhelm – Merten,Rainer, OU, 1989.

7.Nf3 Bd6 8.d4 0–0 9.Nc3 e5 10.de5 Ne5 11.Be2 Nc4 12.Bc4 dc4 13.Qd4 Be6 14.0–0 Bc7 15.Rfd1 Qd4 16.Nd4 Ng4 17.h3 Ne5 18.Na4 Nd3 19.Ba3 Rfd8 20.Nb2 Nb2 21.Bb2 a6 22.a4 ab5 23.ab5 Bd7 24.Ra8 Ra8 25.Ra1 Ra1 26.Ba1 Kf8 27.Bc3 Ke7 28.Bb4 Bd6–/+ 29.Bc3 Bc5 30.Kf1 Bd4 31.Bd4 Bb5 32.Ke1 Bc6 33.g3 b5 34.Bg7 b4 35.Kd1 Be4 36.Kc1 c3 37.h4?? f6 (37...f6 38.Kd1 b3–+) 0–1. Plock,Joerg – Bendig,Frank, corr or02–020, 2002.

7.Nf3 Be7 8.Be2 0–0 9.0–0 Qb6 10.a4 Nc5 11.d4 Nce4 12.Ba3 Qc7 13.Be7 Qe7 14.Ne5 Nd7 15.Nd3 Nb6 16.Ne5 Qb4 17.Nd3 Qe7 18.Nd2 Nc3 19.Qe1 Ne2 20.Qe2 Bd7 21.Nc5 Rac8 22.a5 Na8 23.Ndb3 b6 24.ab6 ab6 25.Nd7 Qd7 26.Rfc1 Nc7 27.Ra7 Qb5 28.Qa2 Qb4 29.g3 Nb5 30.Qa4 Rc1 31.Nc1 Qe1 32.Kg2 Na7 33.Nd3 Qa5 34.Qd7 Qb5 35.Ne5 Qd7 36.Nd7 Rc8 37.Nb6 Rc2 38.Kf3 h6 39.Nd7 Nb5 40.g4 Nc3 41.Kg3 Ne4 0–1. mete61 – karokan6, internet, 2013.

7.Nf3 g6 8.Be2 Bg7 9.0–0 0–0 10.a4 Ne4 11.Bg7 Kg7 12.d3 Nd6 13.Nbd2 b6 14.Qb1 Rb8 15.Qb2 Kg8 16.h3 Qf6 17.d4 Bb7 18.Qb3 Rfc8 19.Rfc1 Rc1 20.Rc1 Rc8 21.Rc8 Bc8 22.Qc2 Qd8 23.Qc6 Ne8 24.Nb3 Qc7 25.Qc1 Qc1 26.Nc1 Bb7 27.Nd3 f6 28.g4 Kf7 29.Nd2 Nb8 30.f4 Nd6 31.Nb4 f5 32.g5 Ke7 33.Kf2 Kf7 34.Bd3 Ke7 35.h4 Nd7 36.Ke2 Nb8 37.Kd1 Kd7 38.Kc2 Ke7 39.Kb3 Kd7 40.Be2 Kc7 41.h5 Nd7 42.hg6 hg6 43.Bd3 Nb8 44.Nf3 Nd7 45.Ne5 Nf8 46.Nbc6 Bc6 47.Nc6 Kb7 48.Ne5 Kc7 49.Kb4 Ne8 50.a5 Nd6 51.ab6 ab6 52.Nc6 Nb7 53.Bc2 Nd6 54.Bd3 Nf7 55.Ne5 Nd6 56.Nc6 ½–½. bauska18 – auras12, internet, 2014.

6.cb5 Be7

7.a4 0–0 8.Nf3 a6 9.Be2 ab5 10.ab5 Ra1 11.Ba1 Qb6 12.0–0 Bd7 Exerts pressure on the isolated pawn 13.Nc3 Bb4 14.d4 Bc3 15.Bc3 Bb5 (better is 15...Rc8 16.Qb3 Nc6+=) 16.Bb5?? (16.Qb3 Ne4 17.Ba1+=) 16...Qb5–/+ 17.Qd2 (17.Qb1!? Qa6 18.Qb2–/+) 17...Ne4–+ 18.Qb2 Qc6 (18...Qb2 19.Bb2 Rc8 20.Ra1–+) 19.Bb4 Re8 20.Ne5 Qa6 21.Ra1 Qb6 22.f3 Nf6 23.h4 Nbd7 24.Nd7 Nd7 25.Qa3 h6 26.Bc5 Nc5 27.dc5 Qc7 28.Rc1 Qe7 29.g3 Rc8 30.Kg2? (30.Qb4 Rc6–+) 30...f6 (30...b6 31.Qa6 Rc5 32.Qa1–+) 31.g4? (31.Qa4 Rc6–/+) 31...e5 (better is 31...b6!? 32.Qa6 Rc5 33.Rc5 bc5 34.h5–+) 32.h5 f5 Black prepares the advance e4 (32...e4 33.Qb4–+) 33.Qb4? (better is 33.Qd3!?+=) 33...fg4 34.fg4? (34.Qg4!? Rc6 35.Ra1–/+) 34...e4 35.Qb3 Kh8 (better is 35...Qg5!? 36.Kh3 Kh7–+) 36.Qd5–/+ Ra8 (better is 36...Rd8 37.Qa2 Qg5–/+) 37.Rd1? (better is 37.Rf1=) 37...Ra2?? (better is 37...Qh4 38.Qe6 Ra2 39.Qa2 Qg4 40.Kh2 Qh5 (40...Qd1?! 41.Qf7–/+) 41.Kg2 Qf3 42.Kh2 Qd1 43.Qa8 Kh7 44.Qb7 Qe2 45.Kh1 Qf3 46.Kh2 Qe3–+) 38.Kg3 (better is 38.Qa2 Qf8 39.Qf2+–) 38...Qc7 39.Qd6 Qf7 40.Qd8?? (better is 40.Qb8 Kh7 41.Qf4+/–) 40...Kh7–+ 41.Rd2 Qf3 42.Kh4 Qh1 43.Kg3 Qe1 44.Kf4 Rd2 45.Qe8 (45.Qc8 Qf1 46.Ke5–+) 45...Qf2 46.Ke4 Qg2 47.Kf4 Qh2 (better is 47...Rd4! 48.ed4 Qf2 49.Ke5 Qe3 50.Kd6 Qe8–+) 48.Ke4 Qc7 (48...Qh1 49.Kf4 Qf1 50.Ke5 Qd3 51.Qg6 Qg6 52.hg6 Kg6–+) 49.Qg6= Kg8 50.Qe8 Kh7 51.Qg6 Kh8 52.Qe8 Kh7 ½–½. elektrooon – rysio6319, internet, 2013.

7.a4 0–0 8.f4 a6 9.Nc3 Bd7 10.Nf3 Bb4 11.Bd3 ab5 12.ab5 Ra1 13.Qa1 Qc7 14.0–0 Rc8 15.Ne5 Be8 16.h3 Nbd7 17.g4 Ne5 18.fe5 Nd7 19.Qb1 g6 20.Rf2 Ne5 21.Na2?? (better is 21.Nd5 ed5 22.Be5 Qe5 23.Qb4 Qg3 24.Rg2 Qh3 25.Qe7+=) 21...Nd3–+ 22.Qd3 Bf8 (better is 22...Qg3!? 23.Rg2 Qe1 24.Qf1 Qf1 25.Kf1 Bb5 26.Kf2 Bd2 27.Kf3–+) 23.Qd4 e5?? (better is 23...Qg3 24.Kh1 Qh3 25.Kg1 Qg3 26.Kh1 e5 27.Qe5 Qe5 28.Be5 Bb5–+) 24.Qd5= Bg7 25.Nc3 b6 26.Ne4 Rd8 27.Qb3 Qe7 28.g5 Kh8 29.Nf6 Bf6 30.gf6 Qd7 (30...Qc5 31.d4 Qb5 32.Qa3+=) 31.Be5 (31.Qb4 Qd6 32.Qd6 Rd6 33.Be5 Rd3+/–) 31...Qb5 (better is 31...Qh3!? 32.Rh2 Qc8+=) 32.Qb5+/– Bb5 33.Bc7 Ra8 34.Bb6 Ra1 35.Kh2 Bd3 36.Bd4 h5?? (better is 36...Rb1+/–) 37.Ba1+– 1–0. jura1946 – miril, internet, 2012.

7.a4 b6 8.Nf3 a5 9.Be2 0–0 10.0–0 Bb7 11.Nd4 g6 12.d3 e5 13.Nf3 e4 14.Nd4 ed3 15.Qd3 Ne4 16.Bf3 f5? (16...Nd7 17.Nc6 Bc6 18.bc6+=) 17.Nd2 (17.Ne6!? Nc5 18.Nd8 Nd3 19.Nb7 Nb2 20.Bd5 Kh8 21.Rc1+–) 17...Qd7 18.N2b3 Bf6 19.Rad1 Qe7 (19...Nc5 20.Nc5 bc5 21.Ba3 cd4 22.Bf8 Kf8 23.ed4=) 20.Be4 (20.Rc1!?+/–) 20...fe4= 21.Qe2 Nd7 22.Qg4 (22.Nc6!? Qd6 23.Bf6 Nf6 24.Nbd4+=) 22...Ne5= 23.Qe6 Qe6 24.Ne6 Rf7 25.Nbd4 (25.Bd4!? Nc4 26.Nf4=) 25...Nd3+= 26.Ba3 Re8 27.f3 Bd4 28.Nd4 Nb4 (28...Rc8!?=) 29.Bb4+= ab4 30.fe4 Re4 31.Rf7 Kf7 32.Re1 h5 33.Kf2 Bc8 34.Kf3 (34.Rc1!? Bf5 35.Rc7 Re7 36.Rc6+=) 34...Bg4 35.Kg3 Bd7 36.h3 g5 37.Kf2 Kf6 38.Rc1 Ke7 39.Rc7 (39.Rb1!?+=) 39...Kd6= 40.Rb7?? (better is 40.Rc2=) 40...g4?? (40...Rd4 41.ed4 b3 42.Rb6 Kc7–+) 41.Rb6+– Kc5 42.Rb7 Be6? (better is 42...g3 43.Ke2 Re7+/–) 43.Rc7 Kd6 44.Rc6 Kd7 45.Ne6 (worse is 45.Re6 Re6 46.Ne6 Ke6+–) 45...Re6 46.Re6 Ke6?? (46...b3 47.Re5 Kd6 48.Rh5 b2=) 47.hg4 (better is 47.Ke2 gh3 48.gh3+–) 47...hg4 (better is 47...b3 48.gh5 b2–+) 48.Ke2+– Kd6 (48...Kd7 49.Kd2 g3 50.Kc1+–) 49.a5 (better is 49.Kd3 Ke6+–) 49...Kc5 50.b6 Kc6 51.Kd3 Kb5 (51...Kd6 52.Kc2 Kd7 53.Kb3+–) 52.Kc2 Ka5 53.b7 Kb5 54.b8Q Kc4 55.Kb2 1–0. avinoam – pionas54 (1635), internet, 2012.

7.d4 Qa5 8.Bc3 Bb4 9.Qc2 Ne4 10.Ne2 0–0 11.f3 (11.Bb4 Qb4 12.Nbc3 Bd7=) 11...Nd6 (11...Nc3 12.Nec3 Bd7 13.a3–/+) 12.Ng3 Nc4 (better is 12...Nb5!? 13.Bb4 Qb4 14.Qd2 Qa4+=) 13.Bc4+= dc4 14.0–0 Nd7 15.e4 Bc3 16.Nc3 Qc7 17.f4 a6 18.a4 ab5 19.Nb5 Qb6 (better is 19...Qc6!?+=) 20.Qc4+– Nf6 21.Rab1 Ng4 (21...Qa6 22.Qc3+–) 22.Qd3 (22.Nc7 Ra4 23.Qa4 (23.Rb6 Rc4 24.Nb5 Rb4+=) 23...Qc7 24.Ne2+–) 22...Rd8+/– 23.Rb4 Qa5 24.Rfb1 e5 25.d5 (better is 25.fe5!? Ne5 26.Qf1+–) 25...ef4+= 26.Nh5 (26.Nf1!?+=) 26...Qb6+= 27.Nd4 Qh6 28.h3 (28.Qh3!?+=) 28...Ne5–/+ (worse is 28...Qh5 29.hg4 Bg4 30.Rb7 Ra4 31.Nc6=) 29.Qe2 (better is 29.Qd1!?–/+) 29...f3!–+ 30.Nf3 (30.Nf3 Qh5 Decoy (30...Qh5 Interception); 30.gf3 Qg5 Double attack (30...Bh3 Deflection; 30...Qh5 Decoy; 30...Qh5 Interception)) 30...Qh5 31.R1b3 Nf3 32.Qf3 Qg5 33.Re3 Qf6 (33...Qe7 34.Rc4–+) 34.e5?? (better is 34.Qf6 gf6 35.g4–/+) 34...Qf3–+ 35.gf3 Bh3 (35...Rd5!? 36.Kg2–+) 36.d6 Be6 37.Rb7 Ra4 38.Rc3 Ra1 39.Kf2 h6 40.Rcc7 Ra2 41.Ke3 Rda8 42.Re7? (42.Rc3–+) 42...R8a3 43.Ke4 Ra4 44.Kd3 R2a3 45.Kc2 (45.Ke2 Rh4 46.Kf2 Rh2 47.Kg1 Rc2–+) 45...Rc4 (better is 45...Rf3 46.Re8 Kh7 47.Rb2–+) 46.Kb2 Rf3 (46...Rd3 47.Rec7 Rd2 48.Ka1 Rh4 49.Rc8 Bc8–+) 47.d7?? (47.Rb8 Kh7 48.Re6 fe6–+) 47...Bd7! 48.Rbd7 (48.Rbd7 Rf2 Decoy (48...g5 Passed pawn); 48.Red7 Rf2 Decoy) 48...Rg4 49.e6 Rg2 50.Kc1 Rf1 51.Rd1 Rd1 52.Kd1 fe6 53.Re6 Rg1 54.Kd2 Rg2 55.Kd3?? (55.Kd1 h5 56.Ke1–+) 55...Rg3 56.Kd4 Rg4 57.Kd5 Rg5 58.Kd6 Ra5 59.Ke7 Ra7 60.Kd8 Ra8 (60...Kf7!? 61.Rc6–+) 61.Kc7 Ra7 62.Kb8?? (62.Kd8 Kf7 63.Rc6–+) 62...Re7?? (better is 62...Rf7–+) 63.Re7+– Kf8 64.Re2 (64.Rd7!? Kg8+–) 64...Kf7 65.Rf2 Kg6 66.Rg2 (66.Rg2 Kf6 67.Rh2+–) 1–0. captainevans – fleck, internet, 2013.

7.d4 b6 8.Nd2 0–0 9.Ngf3 Bb7 10.a4 Nbd7 11.Bd3 Ne8 12.0–0 f5 13.Ne1 Rf6 14.f3 Rh6 15.e4 fe4 16.fe4 Ndf6 (better is 16...Bg5!? 17.Nc2 Rc8 18.ed5 Rc2 19.Qc2 Be3 20.Rf2 Bf2 21.Kf2 A) worse is 21...Rh2 22.Nf3 (22.de6 Rg2 23.Ke1 Qh4 24.Kd1 Rg1 25.Bf1 Bf3 26.Nf3 Rf1 27.Ke2 Qf2 28.Kd3 Qf3 29.Kc4 Ndf6–+) 22...Rh6 23.Bc1+/–; B) 21...Qh4 22.Kf1 Bd5+=) 17.e5+/– Nd7 18.Nef3 Bg5 (18...a6 19.Rc1+/–) 19.Qb3 (19.Ng5!? Qg5 20.Qf3+–) 19...Be3+/– 20.Kh1 Nf8 (20...Bf4!?+/–) 21.Bh7!+– Nh7 (21...Nh7 22.Qe3 Discovered attack; 21...Kh7 22.Qd3 Double attack (22.Qe3 Discovered attack); 21...Rh7 22.Qe3 Discovered attack) 22.Qe3 Qe7 23.Rf2 Rc8 24.Ba3 Qd7 25.Ng5 Ng5 26.Qg5 Rc3? (26...a6 27.Rf8 Kh7 28.Raf1+–) 27.Rf8 Kh7 28.Raf1 (better is 28.Nf3 Rf3 29.Rf3+–) 28...Ra3+/– 29.h3 Rg6? (better is 29...Rd3+/–) 30.Qh4?? (better is 30.Qh5 Rh6 31.Qe8 Qe8 32.Re8 Ra4 33.Nf3+–) 30...Rh6+/– 31.Qg3?? (31.Qg4 Qd8 32.R1f7+–) 31...Rg3–+ 32.Nf3 Qe7 33.Nh2 Qg5 34.R8f2 Nc7 35.Kg1 Rhh3 36.Nf3 Rf3! 37.Rf3 Rf3 38.Rf3 Ne8 (better is 38...Qd2!? 39.Rf7 Qd4 40.Kf1 Qc4 41.Ke1–+) 39.Rh3 Kg8 40.Kh2 Qf4 41.Rg3 Qd4 42.Rf3 Qe5 43.Rg3 Nf6 44.Kh3 (44.Kh1 Qg3 45.Kg1 Ng4 46.a5 Qe1) 44...Ne4 (44...Qh5) 45.Rg4 (45.Kh2 Nf2 46.a5 Ng4 47.Kh3 Qh5) 45...Qf5 (45...Nf2 46.Kh4 Qh2 47.Kg5 Qh6) 46.Kh4 g6 (46...Qh7) 47.g3 (47.Kh3 Nf6 48.Kh2 Ng4 49.Kh3 Ne3 50.Kh2 Qf2 51.Kh3 Qg2 52.Kh4 Qg4) 47...e5 (47...Qh5) 48.Rg6 1–0. captainevans – pionas54 (1650), internet, 2013.

7.Nf3 a6 8.Qb3 0–0 9.Nc3 ab5 10.Bb5 Bd7 11.Bd3 Na6=+ 12.Ba6 ba6 13.0–0 Rb8 14.Qc2 Qc7 15.Rfc1 Rfc8 16.Rab1 e5 17.Qd1 Qa5 18.Ne5 Bf5 19.d3 Bd6 20.Ne2 Rb2! 21.Rc8 Bc8 22.Rb2 Be5 23.Qc1 Bf5 ½–½. Pietrzak,Wojciech – Reichardt,Markus (1955), IECG, 2000.

7.Nf3 Nbd7 8.Be2 0–0 9.0–0 b6 10.Ne5 Ne5 11.Be5 Nd7 12.f4 Bb7 13.Rf3 d4 14.Rh3 Ne5–/+ 15.fe5 de3 16.Qc2 g6 17.de3 Rc8 18.Qb2 Bc5 19.Rg3 Qe7 20.Nc3 Rfd8 21.Rf1 Bb4 22.Nb1 Qc5 23.h4 Be4 24.h5 Ba5 25.hg6 hg6 26.Bg4 Qd5 27.Qf2 Rd7 28.Qf6 Rc2 29.Bf3 Bf3 30.Rg6?? fg6–+ 31.Rf3 Rc1 32.Kh2 Rh7 33.Kg3 Be1 34.Kg4 Qe4 (34...Qe4 35.Qf4 Rh4 36.Kg5 Rf4 37.Rf4 Qe5 38.Kg6 Qg7 39.Kh5 Rc5 40.Rf5 Rf5#; 34...Rc4 35.Qf4 Qd8 36.Rh3 Rh4 37.Rh4 Qh4 38.Kf3 Qf2 39.Kg4 Qg2#) 0–1. Rohrbacher,Walter – Hafner,Otto, Baden–ch Sen, 1988.

7.f4 0–0 8.Nf3 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Bd7 12.Be2 Qb6 13.Nc3 Ne4 14.Ne4 de4 15.Nd4 Bc5 16.0–0 Bd4 17.Bd4 Qa5 18.Qb1 Be8 19.Qe4 b6 20.Bd3 Qd2 21.Qh7 1–0. elsh1403 – amigoos, internet, 2014.

7.f4 0–0 8.Nf3 Bd7 9.a4 b6 10.Be2 a6 11.Nc3 ab5 12.ab5 Ra1 13.Qa1 Qc7 14.0–0 Be8 15.Rc1 Qb7 16.Bd3 Nbd7 17.Ne2 Nc5 18.Bb1 Nb3 19.Qa2? Nc1–+ 20.Bc1 Bb5 21.Ned4 Bd7 22.Ne5 Bc5 23.Nd7 Qd7 24.Nf3 d4 25.Ne5 Qd5 26.Qc2 g6 27.Ba2 Qd6 28.Nc4 Qc7 29.Bb2 de3 30.Bf6 e2 (30...e2 31.d4 e1Q) 0–1. elsh1403 – peterklein, kurnik, 2011.

7.Nf3 0–0

8.Qb3 Nbd7 9.d4 Ne4 10.Nfd2 f5 11.f3 Nd2 12.Nd2 f4 13.e4 Bh4 14.Kd1 Nb6 15.e5 Bd7 16.a4 Nc8 17.Bd3 Ne7 18.Ke2 (better is 18.g3!? Bg5 19.h4+=) 18...Nf5+= 19.Bf5 Rf5 20.Rac1 (20.Rhc1 Qb6+=) 20...Rf7 21.Rhg1 Qe8 22.Nb1 Bd8 23.Bc3 a6 24.Na3 Be7 25.Bb4 ab5 26.Be7 ba4 (26...Re7?! 27.ab5 b6 28.Rc3+=) 27.Qb7 Re7 28.Rc7 Rb8 29.Qa7 Bb5 30.Kd2 Rc7 31.Qc7 Rc8 32.Qb7 Bc6 33.Qa6 Ra8 34.Qd3 Qe7 35.Rc1 Be8 36.g3 Rb8 37.Rc3 Qg5 (37...Bg6!? 38.Qa6 Qb4 39.Nb5–+) 38.g4 Bg6 39.Qe2 (39.Qa6 Qe7 40.Kd1 Be8–/+) 39...Qe7 40.Nc2 (40.Kd1 Rb3 41.Rb3 ab3–+) 40...Bc2 41.Kc2 Qb4 42.Qd3 (42.Kd3 Qb5 43.Kd2 Qa5–+) 42...Qb2 (42...a3 43.Kd1 a2 44.Rc1–+) 43.Kd1 Qh2 44.Rc1 (44.Rc7–+) 44...Qg1 45.Kd2 Rb2 46.Rc2 Qf2 (46...a3 47.Rb2 ab2 48.Qb5 Qc1 49.Ke2 Qc2 50.Ke1 b1Q 51.Qb1 Qb1 52.Kd2–+) 47.Kc1 Qc2 (47...Qe3 48.Qd2 Rc2 49.Kc2 Qf3–+) 48.Qc2 Rc2 49.Kc2 g5 50.Kb2 h5! (50...h5 51.gh5 g4 52.fg4 f3–+) 0–1. Huelle,Gunter – Bross,Thomas (2010), Leipzig VfB op, 2005.

8.Be2 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Bc3 Qb6 13.0–0 Bd7 14.Bf6 Bf6 15.d4 Qa5 16.Qd3 (16...Rc8 17.Nbd2=; 16.Qd2 Qb6+=). Kleinke,Uwe – Zappe,Helmut, corr DDR–ch I726, 1988.

8.Be2 Nbd7 9.0–0 a6 10.Nc3 Nc5 11.ba6 ba6 12.d4 Rb8 13.Rb1 Ncd7 14.Qc2 Qc7 15.Rfc1 Nb6 16.Nd5 Qc2 17.Ne7 Kh8 18.Rc2 Nbd5 19.Rc8 Rfc8 20.Nc8 Rc8 21.Ba6 Rc2 22.Bd3 Rc8 23.a4 Rb8 24.a5 Nd7 25.a6 N7b6 26.Ng5 Kg8 27.Bh7 Kh8 28.Be4 g6 29.Nf7 Kg7 30.Ne5 g5 31.a7 Ra8 32.Ra1 Nc4 1–0. guest838 – guest211, ICC, 2002.

8.Be2 Bd7 9.0–0 a6 10.a4 ab5 11.ab5 Ra1 12.Ba1 Be8 13.Nc3 Nbd7 14.d4 Nb6 15.Qb3 Nfd7 16.Bb2 f5 17.Ba3 Nf6 18.Ra1 Ne4 19.Be7 Qe7 20.Ne4 fe4 21.Ne5 Qf6 22.Rf1 h5 23.Qb4 Qd8 24.Rc1 Qf6 25.Rf1 g5 26.f3 ef3 27.Rf3 Qg7 28.Rf8 Qf8+/– 29.Qf8 Kf8 ½–½. Ruhle,Ernst Albrecht – Hendry,Ian L, Wch Seniors Bad Wildbad, 1993.

8.Be2 Nbd7 9.0–0 Ne4 10.Nc3 Ndf6 11.Ne4 Ne4 12.d3 Nd6 13.a4 Bd7 14.Ne5 Be8 15.Qd2 f6 16.Nf3 Rc8 17.Rfc1 Bf7 18.Nd4 e5= 19.Nb3 Qd7 20.Nc5 Qf5 21.Ba3 Rfe8 22.Qd1 h5 23.Nb3 b6= 24.Rc8 Rc8 25.Rc1 ½–½. Reuter,A (1645) – Thieme Garmann,Alexander (1860), RL–op Polch, 1993.

6.cd5 Nd5

7.Bb5 Bd7 8.Qb3 a6 9.Bc4 Bc6=+ 10.Nc3?? Nd7?? 11.Nd5 Bd5 12.Bd5 ed5 13.Qd5+/– f6 14.Nf3 Be7 15.0–0 Rb8 16.Rac1 Qb6 17.Qb3 Qb3+/– 18.ab3 0–0 19.d4+– Nb6 20.Rfd1 Rbc8 21.d5 Rcd8? 22.e4+– Bd6 23.Nd4 Rc8 24.Nf5 Rc1 25.Bc1 Nd7?? 26.Nd6 h5 27.Nb7 Rb8 28.Nd6 Rb3 29.Be3 a5 30.Ra1 Ne5 31.h3 Nd3 32.Ra5 h4 33.Rb5 Ra3 34.Nf5 Ra4 35.Bd4 Rc4 36.d6 Rc1 37.Kh2 Ne5 38.Be5 fe5 39.d7 Rd1 40.Rb8 Kf7 41.d8Q Rd8 42.Rd8 g6 43.Nh6 Kf6 44.Rd6 Kg7 45.Ng4 g5 46.Ne5 Kh7 47.Ng6 Kh6 48.e5 Kh5 49.Nf8 g4 50.e6 g3 51.fg3 hg3 52.Kg3 Kh6 53.e7 Kg7 54.e8Q Kg8 55.Rg6 Kh8 56.Ne6 Kh7 57.Qg8# 1–0. gtate (1845) – drsmoke (1605), net–chess.com, 2003.

7.Bb5 Bd7 8.Qb3 Bb5 9.Qb5 Qd7 10.Qd7 Nd7 11.Nc3 =.

7.Bb5 Bd7 8.Be2 Nc6 9.Nf3 Qb6 10.Qb3 Na5 11.Qb6 Nb6 12.0–0 =.

7.Bb5 Bd7 8.Be2 Nc6 9.Nf3 Qb6 10.Qb3 Qb3 11.ab3 Ncb4 12.0–0 Nc2 13.Ra2 f6 14.Nc3 Ncb4 15.Raa1 e5 16.Rfc1 a6 17.d4 Nc3 18.Bc3 e4 19.Nd2 f5 20.f3 Bc6 21.fe4 Be4 (better is 21...fe4!? 22.Bh5 Kd8+=) 22.Ne4+– fe4 23.Bg4 Nd5 24.Bd2 Bb4 25.Bb4 Nb4 26.Ra4 Nd5 27.Be6 Nf6 28.Rc7 b5 29.Ra2 Kd8 (29...Rf8+–) 30.Rg7 Re8 31.Bf7 Re7 32.Rf2 Ne8 33.Rh7 Rc8 (33...a5 34.g4 a4 35.ba4 ba4 36.g5+–) 34.g4 Rc3 (34...Rc1 35.Kg2 Nd6 36.g5 Nf7 37.Rff7 Rf7 38.Rf7+–) 35.g5 Re3 (35...Rb3 36.g6 (36.Bb3?! Rh7 37.Bd5 Nd6+–) 36...Re3 37.Be8 Re1 38.Kg2 Ke8 39.Re7 Ke7 40.Rf7 Ke6 41.Rf8 Re2 42.Kf1+–) 36.g6 Re1 37.Rf1 Rf1 38.Kf1 Nf6 39.Rh8 Kd7 (39...Kc7 40.h4+–) 40.h4 e3 41.Ke2 Re4 42.g7 Rg4 43.Rh6 Ke7 44.Rf6 Rg7 45.Ra6 (45...Rg4 46.Ra7 Kd6 47.h5 Rd4 48.Ra5+–) 1–0. marekt – Calabinhas, ChessWorld.net, 2003.

7.Bb5 Bd7 8.Be2 Nc6 9.Nf3 Qb6 10.Qb3 Bd6 11.Na3 0–0 12.0–0 Rfc8 13.Nc4 Qb3 14.ab3 Be7 (14...Bb4 15.Rfc1=) 15.d4 (15.Rfc1 f6+=) 15...a5 (15...b5!? 16.Ncd2 Ncb4=) 16.Rfc1+= f6 (16...b6 17.e4 Nf4 18.Bf1+/–) 17.e4+/– Nf4 18.Bf1 Ra6 19.g3 Ng6 20.d5 ed5 21.ed5 Nb4 22.Ne3 (22.d6 A) 22...Bd6? 23.Rd1 Bg4 24.Nd6+– (24.Rd6?! Bf3 25.Nb6 Rb6 26.Rb6 Rc2+–); B) 22...Bd8+/–) 22...Rc1 23.Rc1 b5 (23...Rd6 24.Rc7 Nd5 25.Nd5 (25.Rb7?! Ne3 26.fe3 Rd1=) 25...Rd5 26.Bc4+–) 24.Rc7 (24.Nd4 Ra8 25.Nc6 Kf8+–) 24...Be8 (24...Rd6!? 25.Bd4 Nd5 26.Rd7 Rd7 27.Bb5 Ne3 28.Bd7 Nc2+/–) 25.Rc8 (25.Nd4 Bf8+–) 25...Kf7 26.Re8! (26.Re8 Ke8 27.Bb5 Kf7 28.Ba6 Na6 29.Kg2+/–) 1–0. Teichmann,Erik (2325) – Mccook,Jake (1700), Melbourne Cup Weekender, 2010.

7.Bb5 Bd7 8.Be2 Nf6 9.Nf3 Bb4 (9...Bc6 10.d3=) 10.Qb3 Nc6 11.0–0 0–0 12.d3 b6 (12...a5 13.Na3=) 13.Rc1 Be7 14.Nbd2 Na5 (14...Nd5 15.Rab1+=) 15.Qc3 Rc8 16.Qe5 Bc6 17.Qg3 Bd6? (better is 17...Nh5 18.Qh3 Nf6+/–) 18.Bf6+– Bg3 19.Bd8 Bf2 20.Kf2 Rfd8 21.d4 Nb7 (21...f6 22.Rab1+–) 22.Ba6 Rd7 (22...Bf3 23.Kf3 Rc1 24.Rc1 Nd6+–) 23.Ne5 (23…Rdc7 24.Rc6 Rc6 25.Nc6 Rc6 26.Bb7+–) 1–0. Trkn – guest5421, ICC, 2004.

5.c4 dc4

6.a4 Qc7 7.Nc3 (7.Bc4 Bd6=) 7...Bd7 (7...a6 8.ba6 Na6 9.Bc4=) 8.Bc4 cb5 9.Bb5 a6 (9...Bd6 10.Rc1 Bh2 11.Be2=) 10.Be2 Nc6 11.Nf3 Be7 12.0–0 0–0 13.d4 Na7 14.Ne5 b5 15.Nd7 Qd7= 16.ab5 ab5 17.Qd3 Rab8 18.Rac1 Rfc8= 19.Ne4 Ne4 20.Qe4 b4 21.Bd3+= g6 22.Rc8 Rc8 23.h4 Nc6= 24.h5 Qd5 25.hg6 hg6 26.Rc1 Qe4 27.Be4 Na7 28.Rc8 Nc8 29.Kf1 Nb6 30.Bc2 Nc4=+ 31.Bc1 Na5 32.Ba4 Kf8 33.Ke2 Bd6 34.Kd3 Ke7 35.e4 f6 36.f4 e5 37.g3 ed4= 38.Kd4 Ke6 39.g4 Nb7 40.f5 gf5 41.ef5 Kf7 42.Kc4 Nc5= ½–½. Holz auf der Heide,Gerhard – Huettmann,Jens, Leipzig VfB op 4th, 1997.

6.a4 Be7 7.Bc4= cb5 8.ab5 Nbd7 9.Nf3 Qc7 10.Be2 e5 11.Nc3 Nc5 12.0–0 0–0 13.d4 ed4 14.Nd4 Rd8 15.Bf3 Bf5 16.Be2 Qe5 17.Na4 Bd6 18.Nf3 Qe7=+ 19.Bd4 Ne6 20.Qb3 Nd4 21.Nd4 Be4 22.Nc3 Bg6 23.g3 Bc5 24.Rfd1= Rd7 25.Bf3 Rad8 26.Nce2 Be4 27.Kg2 Nd5 28.Qb2 Bf3 29.Kf3 Rd6 30.Kg2? Qe4–+ 31.Kg1 Ne3 (32.fe3 Qe3 33.Kg2 Bd4 (33...Rd4?! 34.Nd4 Bd4 35.Kh1=+) 34.Nd4 Rd4 35.Rd4 Rd4–+ (< 35...Qd4 36.Qd4 Rd4 37.Ra7 Rd2 38.Kf3=)) 0–1. Neuhof,KE – Bea Figueras,P, corr ICCF EU/M/GT/039 (year?).

6.Bc4 Bd6 7.Nf3 0–0 8.a4 Nbd7 9.0–0 Nb6 10.Bb3 cb5 11.ab5 Bd7 12.Qe2 Qe8 (12...Nbd5 13.Nc3=) 13.Nc3+= e5 14.Qd3 Qe7 (14...Bb4 15.Qc2+=) 15.Ng5+/– Bg4 16.Nce4 Ne4 17.Ne4 Bc7? (better is 17...Bb4!? 18.Ng3 Nd7+/–) 18.f4+– Rfd8 (18...Qd7 19.Qd7 Bd7 20.Rfc1+– (20.Be5?! Be5 21.fe5 Bb5+/–)) 19.Qc2 Nd5 20.Ng5 e4 21.Be5 Be5 22.Qe4 Nf6 (22...Ba1?? 23.Qh7 Kf8 24.Qh8) 23.Qe5 Kf8 24.Ra2 (24.Bf7 h6 25.Be6 hg5 26.Bg4 Ng4 27.fg5 Ke8+–) 24...Rdc8 25.Nf7 (25.Bf7?! h6 26.Be6 hg5 27.Bc8 Bc8+–) 25...Rc5 26.Ra7! Ra7 27.Qb8 Bc8 28.Qa7 Rb5 29.Bc4 Rc5 30.Ne5 b5 31.Qe7 Ke7 32.Bd3 Bb7 33.Rb1 Ne4 34.Be4 Be4 35.Rb4 Bb7 36.Kf2 Rc2 37.Rb5 Ba8 38.Ke2 Bg2 39.Rb4 Kd6 40.Rd4 Ke6 41.e4 Ra2 (41...Rc1 42.Kf2 Bh1 43.Nf3+–) 42.Rc4 Ra6 (42...Ra1 43.Ke3+–) 43.Kf2 Bh1 44.h4 Rb6 (44...Ra7 45.d3 Ra2 46.Ke3+–) 45.Ke3 Rb1 46.d3 Ke7 (46...Re1 47.Kd4 Rf1 48.f5 Kd6 49.Rc6 Ke7 50.Rc7 Kf8 51.Rc8 Ke7 52.Rh8+–) 47.Rc7 Kf8 48.Kd4 Rg1 (48...Ra1 49.f5 Ra8 50.Nd7 Kg8 51.Nc5+–) 49.Kd5 Ra1 50.f5 Ra5 (50...Bg2+–) 51.Ke6 Ra6 (51...Ra8 52.Nd7 Kg8 53.f6 Ra6 54.Kf5 Ra5 55.e5 gf6 56.Nf6 Kf8 57.Rh7+–) 52.Nc6 Ra8 53.Nd4 1–0. Johansson,Mats (2140) – Pintonello,Gilberto, IECG, 2004.

6.Bc4 g6 7.Nf3 Bg7 8.d4 (8.Nc3 0–0+/–) 8...0–0 9.0–0 cb5 10.Bb5 Bd7 11.Be2 Qb6 12.Qb3 Qb3 13.ab3 Rc8 14.Nc3 Nc6 15.Rfc1 a6 16.Nd2 Re8 17.Nc4 Bf8 18.Nb6 Rad8 19.Bf3 Ne7 (19...e5 20.Ncd5 Nd5 21.Nd5+/–) 20.Bb7 Rb8 21.Nd7 Nd7 22.Ba6 Rb3 23.Ba3 (23.Rab1 Reb8 24.Ba1 Nf6+/–) 23...Nd5 (23...Ra8 24.Bd6+/–) 24.Bf8 Nc3 25.Bd6 Ne4 26.Bg3 (26.Bc7!?+–) 26...Ng3+/– 27.hg3 (27.fg3?! Re3 28.Kf2 Rb3=) 27...Rb2 28.Rab1 Reb8 29.Rb2 ½–½. Krebbers,Wilfried (2155) – Ahlberg,Mario (2030), Goch op, 2006.

6.bc6 Nc6 7.Bc4 Bd7 8.Nf3 Be7 9.0–0 0–0 10.Nc3 a6 11.d4 b5 12.Bd3 Nb4 13.Be2 Rc8 14.Ne5 Nfd5 15.Nd7 Qd7 16.Qb3 Nc3 17.Bc3 Nd5 18.Bb2 Rc7 19.a4 (19.Rfc1=) 19...Rfc8 (better is 19...ba4 20.Qd3 Rb8–/+) 20.ab5+/– ab5 21.Bb5 Qd8 22.Bd3?? (better is 22.Rfb1+/–) 22...Rb8–/+ 23.Qa2 Rcb7?? (better is 23...Nb4 24.Bh7 Kh7–+) 24.Bc1+= Nb4 25.Qe2 Nd3 26.Qd3 Rb3 27.Qe4 Qb6 28.Bd2 h6 29.Rfc1 Qb7 30.Qg4 Rb2 31.Qd1 Qb3 32.Qe1 Qd3 33.Ba5 Bb4 34.Bb4 R8b4 35.Ra8 Kh7 36.Ra7 Rb1 37.Rac7 (37.Rf7?? Rc1 38.Qc1 Rb1–+) 37...Rc1 38.Rc1 (38.Qc1?? Rb1 39.g3 Rc1 40.Rc1 f6–+) 38...Rb2 39.g3 Qf5 40.e4 Qg4 41.d5 (41.Qc3 Re2 42.e5 Qf5+=) 41...Re2 42.Qc3 Qe4 (42...Re4 43.f3 Qg6 44.fe4 Qe4 45.d6+–) 43.d6 (43.de6 Qf5 44.Qc5 Qe6=) 43...Qd5–/+ 44.Qc7 Rd2 (better is 44...f6!?–/+) 45.Qf7= Qd6 46.Re1 Rd1 47.Rd1 Qd1 48.Kg2 Qd5 49.Qf3 Qe5 50.h4 h5 51.Qd3 Kh6 52.Qe3 Qe3 53.fe3 g5 54.Kf3 Kg6 55.Ke4 Kf6 56.Kd4?? (better is 56.hg5 Kg5 57.Kf3=) 56...gh4–+ 57.gh4 Kf5 58.e4 Kf4 59.e5 Kf5 60.Kd3 Ke5 61.Ke3 Kf5 62.Kf3 e5 63.Ke3 Kg4 64.Ke4 Kh4 65.Ke5 Kg3 0–1. Mikhaylov,Dimitri (1815) – Demura,Anna (1650), St Petersburg RUS, Chigorin Mem, 2013.

6.a4 cb5

7.ab5 Nbd7 8.Bc4 =.

7.ab5 Ne4 8.Bc4 Nf2 9.Kf2 Qh4 10.Kf1 Qc4 11.Qe2 Qe2 12.Ke2 –/+.

6.Bc4 a6

7.bc6 Nc6 8.Qf3 =+.

7.bc6 Nc6 8.Nf3 =+.

6.Bc4 cb5

7.Bd5?? Qd5 0–1. Kroll,Ove – Hansen,Jens Haagen, Ch–DEN corr, 1980.

7.Bb5 Bd7

8.a4 a6 9.Be2 Bb4 10.Nf3 0–0 (10...Nc6 11.0–0=) 11.0–0 Nc6 12.d4 Nd5 (12...Rc8 13.Nbd2=) 13.Nbd2 (13.g3 f5=) 13...Nb6 (13...f6 14.Ne4=) 14.Bd3 (14.Ne4 Nd5+=) 14...Ne7 (14...Qe7!?=) 15.Qb3 +/–. Dopper,Johan – Verroen,H, 1–388, 1988.

8.a4 a6 9.Be2 Nc6 10.Nf3 Be7 11.0–0 Qb6 12.Ba3 Ba3 13.Na3 0–0 14.Nc4 Qa7 15.Rb1 Nd5 16.d4 Rab8 17.Qc2 b5 18.ab5 ab5 19.Nce5 Ne5 20.Ne5 Rfc8 21.Qe4 Be8 22.Bd3 g6 23.Qf3 b4 24.Bc4 Ne7 25.d5 ed5 26.Bd5 Nd5 27.Qd5 b3 28.Rb3 Qa2 29.Rb8 Qd5 30.Rc8 Qe5 31.Rfc1 Kg7 32.R1c7 Bd7 33.h3 Bc8 34.Rc8 h5 35.g3 h4 36.gh4 Qe6 37.Rc4 Qc4 0–1. elsh1403 (1655) – hefalumppp (1610), internet, 2014.

8.a4 Bb5 9.ab5 a6 10.Qa4 Qd7 (better is 10...Nbd7!?+=) 11.Nf3 (11.Bf6 gf6 12.Ne2 Qd6+/–) 11...Bd6 (11...Be7 12.0–0 0–0 13.Rc1+=) 12.Nc3 (12.0–0!?+/–) 12...0–0+= 13.e4 e5 14.d4 (14.0–0 Qe7+=) 14...ed4= 15.Nd4 Qg4 16.f3?? (better is 16.0–0 Ne4 17.Nf5 Qf5 18.Ne4+=) 16...Qg2–/+ 17.0–0–0 Nbd7 18.Qb3 Bh2 (18...ab5 19.Nf5 Bh2 20.Nb5–+) 19.Kb1–/+ ab5 20.Nd5 Nd5 21.Qd5 Be5?? (21...Ne5 22.Nf5 Nf3 23.Bg7–/+) 22.Rdg1?? (better is 22.Qd7!? g6 23.Qh3 (23.Qb7 Bd4 24.Rd4 Qh1 25.Kc2 Qg2 26.Rd2 Rfc8 27.Bc3 Qf3 28.Qf7 Kf7 29.Rd7 Ke6 30.Rd3 Ra2 31.Kb3 Qd3 32.Ka2 Qc3 33.e5 Ra8 34.Kb1 Ra1; 23.Qb5 Bd4 24.Rhe1 Bb2 25.Qb2 Qf3–+) 23...Qh3 24.Rh3+=) 22...Qd2+= 23.Qd7?? (23.Rd1 Qa5 24.Nf5–+ (24.Qd7 Qa2 25.Kc2 Rfc8 26.Kd3 Rd8 27.Qb5 Bd4–+)) 23...Qd3–+ 24.Nc2 Qd7 25.Be5 f6 (25...f6 26.Bd4 Rfc8–+) 0–1. josquin – amoffit9, gameknot.com, 2015.

8.a4 Bb5 9.ab5 a6 10.ba6 Ra6 11.Nc3 (11.Bf6 Qf6 12.Ra6 ba6 13.Qa4 Kd8+=) 11...Be7 12.Ra6 Na6 13.Qa4 Qd7 14.Qb3 (14.Qd7 Nd7 15.Nf3 Bb4=) 14...0–0 (14...Nc5 15.Qb6–+) 15.Nf3 (better is 15.d4!?+=) 15...Nc5–/+ 16.Qc4? (better is 16.Qc2 Nd3 17.Ke2–/+) 16...Nd3–+ 17.Kf1 (17.Ke2 Nb2 18.Qb5 Qb5 19.Nb5 Ra8–+) 17...Nb2 18.Qb3 (18.Qb5 Qb5 19.Nb5 Nd3–+) 18...Qd3 19.Ne2 (19.Ke1 Nc4 20.Qb1 Qd7–+) 19...Qb1 (better is 19...Qb3 20.Nc3 Qc4 21.Kg1 Ra8–+) 20.Ne1 Qa1 (better is 20...Ne4 21.Qc2 Qc2 22.Nc2–+) 21.g3 Qa3 (21...Rb8!? 22.Nd4–+) 22.Qb7 Nd5 23.Kg2 Bf6 24.Nf3 Nd3 25.Ned4 Ne5 (25...Bd4 26.Nd4 Qa2 27.Nf3–+) 26.Ne5 Be5 27.Nc6 Bf6 28.d4 Ne7 (28...Qa2!? 29.Re1–+) 29.Ne7 Qe7 30.Qf3 (30.Qe7 Be7 31.Rb1 f5–+) 30...Rb8 31.h4 Qb7 (better is 31...e5 32.de5 Qe5–+) 32.e4? (better is 32.Qb7 Rb7 33.Ra1–+) 32...g6 (32...Bd4 33.Rc1–+) 33.h5?? (better is 33.Qf6 Qe4 34.Kh2=) 33...Bg7 (better is 33...Bd4!? 34.Rd1 Qb2 35.Rd3–+) 34.hg6 hg6 35.Qf4?! (35.Rd1–+) 35...Bd4 36.Qh4 Bg7 37.Qh7 Kf8 38.f3 (38.Qh4–+) 38...Qb2 39.Kh3 Qd2 (39...Ke7 40.Rh2 Qa1 41.Kh4–+) 40.Kg4 (40.Rh2 Qe1 41.Qh4–+) 40...f5 41.ef5 ef5 42.Kh4 (42.Kh3 Kf7 43.Ra1–+) 42...Qh6 (42...Rb1! 43.Rg1 Rg1 44.Qg7 Kg7 45.f4 Rh1 46.Kg5 Rh5) 43.Qh6–+ Bh6 44.g4 Rb4 45.Re1 Rb7 (better is 45...Kf7 46.Ra1–+) 46.g5 (46.gf5 gf5 47.Re5 Rf7–+) 46...Bg7 (better is 46...Rb4!? 47.Kh3 Bg5 48.Kg2–+) 47.f4 Kf7 48.Rd1 Bf8 49.Rd8 Bc5 50.Rh8 Re7 (50...Rb4 51.Kg3–+) 51.Rh7 Ke6 (51...Ke6 52.Rh6 Bf2 53.Kh3 Kf7–+) 0–1. elektrooon – slabeusz, internet, 2013.

8.a4 Be7 9.Be2 (9.Nf3 a6 10.Be2 Nc6=) 9...0–0 (9...Nc6 10.Nc3+=) 10.Nf3 Nc6 (10...Qb6 11.Ba3 Nc6 12.0–0=) 11.0–0 Qb6 (11...Rc8 12.Na3=) 12.Ba3 (12.Na3 Rfc8=) 12...Rfc8 (12...Rac8 13.Nc3=) 13.d4 (13.Nc3 Ba3 14.Ra3 e5=) 13...Nb4 (13...Rc7 14.Nbd2 Ba3 15.Ra3=) 14.Ne5 Bc6 (14...Qd8 15.Qb3 Nc2 16.Ra2 Na3 17.Na3=) 15.Nd2+= Bd5 16.Rb1 a5 17.Bc4 (17.Ndc4 Qd8 18.Rc1 Na2 19.Be7 Qe7=) 17...Qd8 18.Rc1 (18.Qb3 Bd6 19.Rfd1 Rab8=) 18...Bd6 (18...Nd7 19.Bd5 Rc1 20.Qc1 ed5 21.Qb1=) 19.Qb3 (19.Qe2 Bc6 20.Nc6 Rc6+=) 19...Qb6 (19...Be5 20.de5 Ng4 21.Bd5 Qd5 22.Qd5 ed5 23.Nf3=) 20.Bd5 (20.Rfd1 Rd8+=) 20...ed5= 21.Ndf3 (21.g3 Re8=) 21...Re8+= 22.Nd3 Reb8 (22...Ne4 23.Rfd1+=) 23.Ra1 (23.Nfe5 Re8+=) 23...Rc8 (23...Re8 24.Rab1+/–) 24.Rfb1 (24.Nfe5 Qc7 25.Rfc1 Qe7=) 24...Ne4= 25.Rc1 Nf6 (25...h6 26.Nde5=) 26.Rab1 (26.Nfe5 g6+=) 26...Rc1 (26...Ne4!?=) 27.Rc1+= h6 (27...Re8 28.Nfe5+=) 28.h3 (28.Nfe5 Re8+=) 28...Kh7 (28...Ne4!?+=) 29.Rb1+/– Rc8 30.Nfe5 Kg8 (30...Rc7 31.f3+/–) 31.Nb4 ab4 32.Bb4 Bb4 33.Nd3 Ne4 34.Qb4+– Qb4 35.Rb4 Rc4 36.Rb7 Ra4+/– 37.Rb8 Kh7 38.Nf4 Ra1 39.Kh2 Nf2 40.Nd5 Ne4 41.Re8 Nd6 42.Re7 Kg6 43.g4 Ra5 44.Re5 Ra3 45.Kg3+– Nc4 46.Re7+/– Nd6 47.Rd7+– Ne4 48.Kf4 Nf2 49.h4 Ra5 50.Ne7 Kf6 51.Ng8 Kg6 52.Ne7 Kf6 53.Nf5 Ra6 54.Rd6 Rd6 55.Nd6 g6?? 56.Ne4 White plans g5 56...Ne4 57.Ke4 Ke7 58.Kf4 Kd6 59.e4 Ke7 60.g5 (60.g5 hg5 61.Kg5+–) 1–0. Dopper,Johan – Loomans,John, corr, 1988.

8.Ba4 b5 9.Bb3 a5 10.Nc3 (10.Nf3 Bc6+=) 10...a4–/+ 11.Bc2 Qb6 (11...a3 12.Bc1–/+) 12.Nf3 b4 (better is 12...a3!? 13.Bc1 b4+=) 13.Na4+/– Qa5 14.Rc1 (14.Bf6 gf6 15.Nb2 Bc6+=) 14...Be7 (14...Bc6 15.Bd4=) 15.Ne5 Ba4 (15...0–0 16.Nc4 Qg5 17.0–0=) 16.Ba4+/– Qa4 17.Rc8 Bd8 18.Qa4 Ra4 19.Rb8 Ra2 20.Bd4 (better is 20.Rb4 Bc7 21.Nc4+/–) 20...Nd5?? (20...0–0+=) 21.0–0?? (better is 21.Rd8 Kd8 22.Nf7 Ke7 23.Nh8+–) 21...0–0+= 22.Nc6 The isolani on b4 becomes a target 22...Ba5 (better is 22...Bf6!? 23.Rf8 Kf8 24.Bc5 Ke8–/+) 23.Rf8+= Kf8 24.Bc5 Ke8+= 25.d4? b3–+ 26.Rb1?? b2 27.g3 Ra1 28.Kg2 Rb1 29.e4 Ra1 30.ed5 b1Q 31.de6 fe6 32.Ne5–+ Qe4 33.Nf3 g5 0–1. captainevans – pietronelli, internet, 2013.

8.Qb3 Bb5 9.Qb5 Qd7 =.

8.Nc3 a6 9.Be2 Be7 10.a4 Nc6 11.Nf3 0–0 12.0–0 h6 13.d4 Rc8 14.Qb3 Qc7 15.Bd3 Nb4 16.Bb1 a5 17.Ne4 Ne4 18.Be4 Bc6 19.Bc6 bc6 20.Ba3 Qb7 21.Rab1 Rb8 22.Qc4 Qa6?? (better is 22...Rfc8=) 23.Qa6+– Na6 24.Be7 Rfe8 25.Rb8 (25.Bd6 Rbd8 26.Rb6 Nb8+–) 25...Rb8 26.Bd6 (26.Ne5 Rb7 27.Bd6 Rb2+–) 26...Rb3 (26...Rb2 27.Ra1+–) 27.g3 (27.Rc1 Rb2+–) 27...f6 (27...c5 28.Rc1 cd4 29.Nd4+–) 28.Rc1 Nb4 29.Bb4 Rb4 30.Rc6 Ra4 31.Ra6 Ra1 32.Kg2 Kf7 33.Nd2 a4 34.Nc4 Ra2 35.h4 g5 36.hg5 hg5 37.Kf3 Kg6 38.Re6 a3 39.Ra6 Kf5 40.Ra3 g4 41.Kg2 Ra3 42.Na3 Ke4 43.Nc2 Kd3 44.Nb4 Kc4 45.Nc6 Kd5 46.Ne7 Ke6 47.Nc6 Kd5 48.Nb4 Kc4 49.Nc2 Kc3?? 50.Ne1 Kd2 51.Kf1 f5 52.Ng2 Kd3 53.Nf4 Ke4 54.Ke2 ½–½. elektrooon – xadrezmen, internet, 2013.

8.Nc3 Bb4 9.Qa4 Bc3 10.Bc3 0–0 11.Nf3 a6 12.Bd7 Nbd7 13.0–0 b5 14.Qa3 Nd5 15.Bd4 N7b6 16.d3 Na4 17.Rac1 Qa5 (17...f6 18.Qb3=) 18.Ne5 Rfc8? (better is 18...b4!? 19.Qb3 Nac3=) 19.Nc6+– Qd2 (better is 19...Qc7 20.e4 Ndc3 21.Ne7 Kh8 22.Nc8 Rc8+–) 20.Rfd1?? (better is 20.Qb3 Rc6 21.Rc6+–) 20...Qe2+= 21.Re1 Qg4 (21...Qd2 22.Qd6 Re8 23.Red1=) 22.h3 Qg5 23.f4 (23.Qd6!?+=) 23...Qg3= 24.Qb3?? (24.Re2 Re8=) 24...Kh8 (better is 24...Rc6 25.Qd1 Nac3–+) 25.Ne5 Rc1 26.Rc1 Ne3 27.Nf7 Kg8 28.Nh6 Kf8 29.Qb4 Ke8 30.Be3?? (better is 30.Qd2 Nd5 31.Qc2+=) 30…Qe3–+ (30...Qe3 31.Kh2 Qc1–+ (31...gh6 32.Rc7 Nc5 33.Rc5+/–)) 0–1. druhynejhorsi (1790) – pir2ooo (1850), internet, 2013.

8.Nc3 Bb4 9.Qe2 Nc6 10.Nf3 a6 11.Ba4 b5 12.Bb3 0–0 13.0–0 Rc8 14.d4 (14.Rfc1 Bd6=) 14...Na5 (Better is 14...Nd4 15.Nd4 Bc3 (< 15...Rc3 16.Bc3 Bc3 17.Rac1+=) 16.Bc3 Rc3–/+) 15.Ne5?? (Better is 15.Rfc1=) 15...Bc3–+ (15...Rc3?! 16.Bc3 Bc3 17.Rac1–/+) 16.Nd7 (16.Bc3 Rc3 17.Rac1 Qc7 18.Rc3 Qc3–+) 16...Qd7 17.Bc3 Rc3 18.Rfc1 Rc1 19.Rc1 Nb3 20.ab3 Rc8 21.Qd1 Rc1 22.Qc1 g6 23.b4 Qd6 24.Qc5 Qc5 25.dc5 Kf8 26.c6 Nd5 27.e4 Nc7 28.f4 Ke7 29.g4 Kd6 30.f5 ef5 31.ef5 gf5 32.gf5 Kc6 33.Kf2 Nd5 34.Kf3 Nb4 35.Ke4 a5 36.Ke5 a4 37.Kf6 a3 38.Kf7 a2 39.f6 a1Q 0–1. stoker – Taiko, Live Game Caissa's Web, 2004.

8.Nc3 Bb5 9.Nb5 Nc6 10.Nf3 Be7 11.0–0 0–0 12.d4 a6 13.Nc3 b5 14.a3 Rc8 15.Qd3 Na5 16.Ne4 Ne4 17.Qe4 Nc4 18.Bc3 Bf6 (18...Na3!? 19.Rfc1 b4–/+) 19.Bb4 Re8 20.a4 a5 21.Bc3 (better is 21.Bc5!? e5 22.Qc2 (22.ab5? ed4 23.Qf5 g6–+) 22...ed4 23.ed4=) 21...b4–+ 22.Bd2 Nd2 (22...e5!? 23.d5 Nd6–+ (worse is 23...Nd2 24.Nd2 Rc5 25.Qf3–/+)) 23.Nd2–/+ e5 24.d5 Rc5 25.Nb3 Rd5 26.Rac1 g6 27.Rc6 Bg7 28.h3 f5 29.Qc4 Kh8 30.Rc5 (30.Rc8 Qc8 31.Qd5 Qa8+=) 30...Rd1 (30...Rc5!? 31.Qc5 e4–/+) 31.Rd1 Qd1 32.Kh2 e4 33.Ra5 Be5 34.g3 Qf3 35.Kg1 Bg3 (better is 35...Rd8 36.Rd5 Rd5 37.Qd5 Bg3 38.Qd4 Kg8 39.fg3 Qg3 40.Kf1 Qh3 41.Ke1 Kf7+=) 36.fg3?? (better is 36.Qd4!? Kg8 37.fg3 Qg3 38.Kf1 Qh3 39.Ke2 Qg4 40.Kd2=) 36...Qe3 (36...Rd8!? 37.Rd5 Qg3 38.Kf1 Qf3 39.Ke1 Qe3 40.Kd1 Rd5 41.Qd5 Qh3 42.Qd4 Kg8 43.Qb4 Qf1 44.Kd2 g5+=) 37.Kg2–/+ g5?? (37...Qf3 38.Kh2 Qf2 39.Kh1 Qg3 40.Qd4 Kg8 41.Qc4 Kg7 42.Qb4 Qh3 43.Kg1 Qg3 44.Kh1 e3 45.Qc3 Kh6–+) 38.Qd4 (better is 38.Rf5!? Qc3 39.Qf7 Qb2 40.Kh1+–) 38...Qd4 39.Nd4 f4 40.gf4 gf4 41.Kf2 (41.Rb5!?+–) 41...Rd8+/– 42.Nb3 Rd4?? (better is 42...Rd3 43.Ra8 Kg7+=) 43.Nd4+– 1–0. tyop (1705) – oiler85 (1710), internet, 2013.

8.Nc3 Bb5 9.Nb5 Nbd7 10.Nf3 a6 11.Nbd4 Be7 12.0–0= 0–0 13.a4 Nc5 14.Qe2 Nd5 15.Rfc1 Qa5 16.Ba3 Na4 17.Nb3 Qb5 18.Qb5 ab5 19.Be7 Ne7 20.Rc7 Nd5=+ 21.Rb7? Rab8?? 22.Rb8 Rb8 23.Kf1 Kf8 24.Nfd4 e5 25.Nc6 Re8 26.Ke2 Re6 27.Rc1 Nab6 28.Rc5 b4 29.g3 f5 30.f3 e4 31.Nbd4+/– Rh6 32.h4 Rf6 33.Rb5 ef3 34.Kf3 g6 35.Nb4 Nb4 36.Rb4 Nd5 37.Rb8+– Kg7 38.Rb7 Kg8 39.Rd7 Nb6 40.Rd8 Kf7 41.Nb5 Nc4 42.d3 Ne5 43.Kf4+– Ng4 44.Rd7 Kg8 45.Nd4 Nf2 46.Nf3 h6 47.Ne5 Re6 48.d4 Ng4? 49.h5 gh5 50.Kf5 Rf6 51.Ke4 Nf2 52.Kd5 Nh1 53.Nc6 Ng3 54.Ne7 Kf8 55.Ke5 Ra6 56.Nf5 Ra5 57.d5+– Nf5 58.Kf5 (58...Ra6 59.Rb7+–) 1–0. Kreuzer,Uwe – Schmitt,Richard, tt, 1987.

8.Nc3 Bb5 9.Nb5 Be7 10.Rc1 Nc6 11.Nf3 =.

8.Bd7 Qd7 9.Bf6 gf6 10.Nf3 Nc6 11.Nc3 Bd6 12.0–0 0–0 13.a4 Kh8 14.Nb5 Bb8 15.d4 Rg8 16.Nh4 a6 17.Na3 Qd5 18.Qf3 Qg5 19.g3?? (better is 19.Qh3+=) 19...Qh4–+ 20.Nc4 Bc7 21.Kh1 Qg5 22.h4 Qd5 23.Qd5 ed5 24.Nd2 Ba5 25.Nf3 Rgc8 26.Rab1 Rab8 27.h5 Kg7 28.Kg2 Ne7 29.Nh4 Rc4 30.g4 (30.Ra1 Kh6–+) 30...b6 (30...Ra4 31.Kf3–+) 31.f4 (31.Rfc1 Ra4 32.Rc7 Kf8–+) 31...Ra4 32.g5 h6 33.gf6 (33.gh6 Kh6 34.Rh1 Rc8–+) 33...Kf6 34.Kf3 Rg8 35.Rfc1 b5 36.e4 (36.Ra1 Ra1 37.Ra1–+) 36...Ra3 37.Ke2 de4 38.d5 (38.Ra1 Rgg3–+) 38...Rgg3 (better is 38...Ra2 39.Kf1 Rg4 40.Rc6 Nc6 41.Rb3 Rh4 42.Rg3 Rf4 43.Rf3 Rf3 44.Kg1 Bb6 45.Kh1 Rf1) 39.d6 (39.Ra1–+) 39...Ra2 40.Kf1 (40.Rb2 Rb2 41.Kf1 e3 42.Ng2 Rgg2 43.Rc2 Rbc2 44.de7 Rcf2) 40...e3 41.de7 Rf2 0–1. elektrooon – szmark (1645), internet, 2013.

8.Be2 Nc6 9.Nf3 Bd6 10.0–0 0–0 11.Nc3 a6 12.d4 b5 13.Bd3 b4 14.Ne4 Ne4 15.Be4 Rc8 16.Qe2 a5 17.Rfc1 Qe7 18.Rc2 Nb8 19.Rac1+= Rc2 20.Rc2 Rc8 21.Rc8+/– Bc8 22.Qc2 g6?? 23.Bd3 Bb7+= 24.e4 Qd8 25.Bc1 Be7 26.Be3 Nc6 27.h3 Bf8 28.Qc4 Nb8 29.Qc2 Bg7 30.Qc5+= Bf8 31.Qc1 Bg7 32.g3 f5 33.Qc2 Kh8 34.Ng5 Qd7 35.Nf3 Kg8 36.Ne5 Be5 37.de5 fe4 38.Be4 Be4 39.Qe4 Nc6 40.Bc5 Kg7 41.Bd6 Nd8 42.Qa8+/– Nf7?? 43.Qf8# 1–0. Liepert,Luise – Adamek,Y, BL2 SW, 1994.

8.Be2 Bd6 9.Nf3 0–0 10.0–0 (10.Na3 Bc6=) 10...Nc6 11.Na3 Rc8 12.Rc1 Nb4 (12...e5 13.Nc4 Qe7 14.Nd6 Qd6 15.Qb3+=) 13.Rc8+= Qc8 (13...Bc8 14.Nb5+=) 14.Bf6 gf6 15.Qb1 (15.Qa1 Bc6+=) 15...Qb8 16.Rc1 (16.Nc4 Be7+=) 16...b5 17.Nb5 (17.d4 a6=) 17...Bb5= 18.Bb5 Qb5 19.a3 Rb8 20.ab4 Qb4 The passed pawn on a7 will become decisive later 21.Qc2 Qb2 (21...Qb3 22.Qe4=) 22.Qd1 Qb3 23.d4 (23.Qe2 a5=) 23...Qd1 24.Rd1 a5 25.Nd2 a4 26.Kf1 (26.Ne4 a3 27.Nf6 Kg7–/+) 26...Bb4 (26...f5 27.Nc4 Bc7 28.g3=) 27.Nc4 Bc3 28.Ke2 Rb4 29.Kd3 Rb3 30.Kc2 Bb4 Black plans a3 31.Rd3 Rd3 32.Kd3 f5 33.f4 f6 34.Nb6+/– a3 35.Kc2 Be1 36.Kb3 Kf8 37.Ka3 Ke7 38.Kb3 Kd6 39.Kc2 Kc6 40.Na4 Ba5 41.Nb2 Kd5+/– 42.Kd3 h5 43.Nd1 Kd6 44.Nc3 Ke7 45.Ne2 Kf7 46.d5 ed5+/– 47.Nd4 Bb4 48.Nf5 White fights for the Initiative 48...Bc5 49.Ng3 Kg6 50.Ne2 Kf5 51.Nd4 Kg4 52.Nb5 h4 53.Nc7 h3 54.gh3 Kf3 55.Nd5 f5 56.h4 Kg4 57.Kc4 Ba7 58.Kb5 Kh4 59.Kc6 Kh3 60.Kd6 Kg4 61.Ke6 Bc5 62.h3! Kh3 Deflection from f5 63.Kf5 Kh4 64.Kg6 Kg4 65.e4 Kf3 66.Kf5 (66.Kf5 Ke2 67.e5+–) 1–0. Poschmann,Hans – Rosner,Dirk, corr TKM–A010, 2000.

8.Be2 Be7 9.Nf3 0–0 10.0–0 Nc6 11.d4 Rc8 12.Nc3 Qa5 13.Qb3 Qf5 14.Rac1 (14.Qb7? Rb8 15.Qa6 Rb2–+) 14...Na5 15.Qd1 Nc6 16.Bd3 Qh5 17.Ne2 Qa5 18.Bb1 Rfd8 19.e4 Be8 20.Nd2 Qh5 21.Rc3 Na5 (21...Bb4!? 22.Rh3 Qb5=) 22.Rh3 Qb5 23.Ba1 Qa4 (23...h6 24.Rc3 Bc6 25.Bd3=) 24.Nb3 (better is 24.e5!? Qd1 25.Rd1+/–) 24...Nb3+= 25.Rb3 Bc6 26.Ng3 g6 27.e5 (27.Qf3!?=) 27...Nd7+= 28.f4 Nc5 29.Re3 Qb4 30.Qg4 Rd4 31.Bd4 Qd4 32.Qe2 Bb5 33.Rd1 Qf4 34.Qf2 Qf2 35.Kf2 Nd7 36.Kf3 Bc6 37.Ke2 Bb5 38.Ke1?? Bb4–+ 39.Kf2 (39.Kf2 Bc5 40.Rd7 Bd7 41.Ne4–+). Koester,Roman (2120) – Klingelhoefer,Stefan (2260), Hessenliga, 2007.

8.Be2 Be7 9.Nf3= Nc6 10.0–0 0–0 11.d3 Nd5 12.Nc3 Qa5 13.Qb3 Nb6 14.Rfd1 Qb4 15.Qc2 Rac8 16.Rab1 Qa5 17.Qb3 Bb4 18.Rdc1 e5 19.a3 Be7 20.d4 ed4 21.ed4 Be6 22.d5 Bd5 23.Nd5 Qd5 24.Qe3 Qe6 25.Qe6=+ fe6 26.Bb5 Na5 27.Re1= Nac4 28.Bc4 Nc4 29.Re6 Bc5 30.Re2 Na3 31.Ba3=+ Ba3 32.Rb7 Rc1 33.Ne1 a5 34.g3 Bb4 35.Kf1 h6 36.f3 Rf3–/+ 37.Kg2 Rf7 38.Rf7 Kf7–+ 39.Nd3 Rc3 40.Nb4 ab4 41.Re4 b3 42.Rb4 Rc2 43.Kf3 b2 44.h4 Kf6 45.Rb5 Ke6 46.Kg4 Kd6 47.Rb8 Kc6 48.Kf4 Kc7 49.Rb3 Rf2 50.Ke3 Rh2 51.Kf4 Rg2?? 52.h5 Kd6–+ 53.Rb8 Kd5 54.Kf3 Rh2 55.g4 Kc4 56.Kf4 Kc3 57.Kf5 Rg2 58.Rc8 Kb3 59.Rb8 Kc2 60.Rc8 Kd1 61.Rd8 Kc1 62.Rc8 Rc2 63.Ra8 (63.Rb8–+) 0–1. Hochgraefe,Markus – Rostalski,Walter, OLNN, 1993.

8.Bf6 Qf6 9.Bd7 Nd7 10.Nc3 Bb4 11.Nf3 (11.Nge2 0–0+=) 11...Rd8 (better is 11...Bc3!? 12.dc3 Qc3 13.Ke2 b6–/+) 12.Ne4 Qg6 13.Ng3 0–0 14.0–0 Nf6 15.Ne5 Qg5 16.f4 Qh4 17.f5 (17.d4 Nd5 18.Qd3 Rc8=) 17...Rd2 (better is 17...Bd2 18.Qb3 Qh6–/+) 18.Qf3?? (18.Qb3 Rd5 19.Rf4 Qh6 20.Nf7 Rf7 21.fe6 Rc7 22.Qb4 Rdc5+/–) 18...ef5 (better is 18...Bc3 19.Qf4 Qf4 20.ef4 Bd4 21.Kh1 Ba1 22.Ra1 Nd5–+) 19.Nf5 Qg5 (better is 19...Qh5+=) 20.h4+/– Qh5 21.Qh5 (better is 21.g4!? Ng4 22.Ng4+/– (worse is 22.Qg4 Qg4 23.Ng4 h5+=)) 21...Nh5= 22.a3 (22.Rab1 Bc5 23.Rb7+=) 22...Bd6?? (22...Bc5 23.Nc4 Rd5 24.a4–/+) 23.Nf3?? (23.Nc4 Ng3 24.Nd2 (24.Nfd6?! Nf1 25.Kf1 Rc2+/–; 24.Ncd6?! Nf1 25.Rf1 f6+/–) 24...Nf1 25.Kf1+– (25.Nd6?! Nd2 26.Rd1 Nb3+=; 25.Rf1?! Ba3 26.Nc4 Bc5+–; 25.Nf1?! Bc5+–)) 23...Rd3 24.Rfd1 Rd1 25.Rd1 Bg3?? 26.Rd7+= Rc8?? 27.Ne7+– Kf8 28.Nc8 g6 29.Rb7 Kg7 30.Ra7 Nf6 31.Nb6 Ne4 32.a4 Nc5 33.a5 Bb8 34.Ra8 Bc7 35.Nd5 Bd6 36.a6 Na6 37.Ra6 Bg3 38.Nd4 Be1 39.h5! gh5 40.Nf5 Kf8 41.Ra8 1–0. horacyad2010 – alexsup, internet, 2013.

8.Nc3 Qb6

9.a4 a6 10.a5 Qc5 11.Ba3 Qg5 12.Nf3 Qg2 13.Rg1 Qh3 14.Rg3 Qh6=+ 15.Bf8 Kf8 16.Bd7 Nfd7 17.Qb3 Ra7 18.Qb4 Ke8 19.Ne4 e5?? 20.Nd6+– (20...Qd6 21.Qd6+–) 1–0. Kreuzer,Uwe – Holtmann, Mannheim GER, 1991.

9.a4 Nc6. Kreuzer.

9.a4 Bd6 10.Bd7 Nbd7 11.Rb1 =+.

9.Qb3 a6 10.Be2 Qb3 11.ab3 Bc6 12.Nf3 Nbd7 13.0–0 Bb4 14.Nd4 Bd5 15.Nd5 (White gets the initiative) 15...Nd5 16.Nb5 0–0 17.Nc3 b5 18.Nd5+= ed5 19.Bf3 Nb6 20.Bd4 Rfb8 21.Rfc1 Bd2 22.Rc6 Nd7 23.Bd5 Rc8 24.Rd6 Nc5 25.Bc5 Rc5 26.Ba8 Rc8 27.Rd2 Ra8 28.Ra6! (28...Rc8 29.Kf1 Rc1 30.Ke2+–) 1–0. Kreuzer,Uwe – Reiter, Mannheim GER, 1991.

9.Bd7 Nbd7 10.Rb1 Bb4 =.

8.Bd7 Nbd7

9.Nc3 Bd6 10.Rc1 =+.

9.Nc3 Bd6 10.Nf3 =+.

9.Nc3 Be7 10.Nf3= 0–0 11.0–0 Rc8 12.d4 Qa5 13.Qb3 b5 14.Qb5+= Qb5 15.Nb5 Rb8 16.Ba3+/– Ba3 17.Na3 Rb2 18.Nc4 Rb4 19.Nce5 Nb6 20.Nc6+– Ra4 21.Ne7 Kh8 22.Rfc1 g6 23.Ne5 Kg7 24.Rc7 Nfd5 25.Nd5 Nd5 26.Rb7 Nb4 27.a3 Nc2 28.Ra2 Ra3 29.Ra3 Na3 30.Ra7 Nb5 31.Rd7 Kg8 32.g3 Nc3 33.f3 Nd1 34.e4 f5 35.d5 ed5 36.ed5 f4 37.d6 Nc3 38.Nc6 fg3 39.Ne7?? Kf7= 40.Nf5?? Ke6–+ 41.Re7 Kf5 42.d7 gh2 43.Kh2 Rd8 44.Rh7 Nd5 45.Kg3 Nf6 46.Rh4 Nh5 47.Kf2 Rd7 48.Ra4 Nf4 49.Ra2 Nd3 50.Ke3 Ne5 51.Ra5 Rd3 52.Ke2 Rc3 53.Rb5 Kf4 54.Rb4 Rc4 55.Rb8 Nf3 56.Rf8 Ke4 57.Re8 Ne5 58.Kf2 g5 59.Kg2 g4 60.Kg3 Rc3 61.Kg2 Kf4 62.Rf8 Kg5 63.Rg8 Ng6 64.Kh2 Kh5 65.Rg7 g3 66.Kg1 Nf4 (67.Rh7 Kg6 68.Rg7 Kg7 69.Kf1 Rc1#) 0–1. Sippenauer,Florian – Kirschbaum,Gunnar (2220), Regensburg–ch, 1995.

9.Nf3 Qb6 10.Bf6 Nf6 11.0–0 Be7 12.Nc3 0–0 13.a4 Rac8 14.Rb1 Qc6 15.Nd4 Qd7 16.Ncb5 a6 17.Nc3 Rfd8 18.h3 Bc5 19.Nf3 a5 20.Qb3 Bb4 21.Nb5 (21.Na2 Bd6=) 21...Nd5 (21...Qd5 22.d4+=) 22.d4 Nb6 23.Ne5 Qe7 24.Na7 (24.Rfc1!?=) 24...Rc3+= 25.Qd1 Na4?? (better is 25...Ra3+=) 26.Qf3?? (better is 26.Qa4 f6 27.Nf3+–) 26...Nb6 (26...Rd4 27.Nac6 A) 27...Rc6? 28.Nc6 (28.ed4 Rc7+=) 28...bc6 29.ed4+–; B) 27...bc6 28.Nc6 Qb7 29.Nd4 Qf3 30.Nf3 Kf8=) 27.Nb5–/+ Rcc8 28.Ng4? (28.Rfc1 Nd5–/+) 28...Nd5 (better is 28...Nc4–+) 29.Rfc1–/+ Qd7 30.Rc8 Rc8 31.Qe2 Nc3 32.Nc3 Rc3 33.Ne5 Qc7 34.Qb5 h6 (34...g6 35.Nd3 Bf8 36.Ra1–/+) 35.Qe8+= Kh7 36.Nf7 Qe7?? (better is 36...Qc8!? 37.Qd8 b5=) 37.Qe7 (better is 37.Qh8!? Kg6 38.Ne5 Kf6 39.Qh7+–) 37...Be7+/– 38.Rb7 Bb4? 39.g3 Rc1 40.Kg2 Rc2 41.Kf3 Be1+/– 42.Ne5 Rf2 43.Ke4 Rc2 44.g4 Bb4 45.Rb6 Rc3 46.Re6 Rc1 47.Nf3 a4 48.Ra6 a3 49.Ne5 Rc2 50.Nd3 a2?? 51.Nb4 Rb2 52.Na2 Rb1 53.Nc3 Rb2 54.Nd5 1–0. elektrooon – blade73, internet, 2013.

9.Nf3 Bd6 10.0–0 Qb6 11.Bd4 Bc5 12.Bc5 Qc5 13.Nc3 0–0 14.Rc1 Rac8 15.Ne2 Qd5 16.a4 Rc6 17.Rc6 Qc6 18.Ned4 Qd6 19.Qc2 Nb6 20.a5 Rc8 (20...Nbd5!?=) 21.Qb1 Nbd7 22.Qb7 Rb8 (better is 22...Rc7!? 23.Qa8 Qf8 24.Qf8 Kf8+/–) 23.Qa7+– Ne4 24.Ne2 Rd8 (24...Ndc5!? 25.Nfd4 Nd2+/–) 25.Qd4 Ndf6 (25...Qa6 26.Qe4 Nf6 27.Qb4 Qe2 28.Qb7+–) 26.Qd6 Rd6 27.Rb1 g6 28.d4 (28.Ned4 Ra6 29.Rb8 Kg7+–) 28...Ra6 29.Ra1 Nd5 (29...Ng4 30.Ng3 Ngf2 31.Ng5 Ng5 32.Kf2+–) 30.Nc1 Nb6 31.Ne5 (31.ab6?? Ra1 32.Kf1 Rc1 33.Ke2 Rb1–+) 31...f6 32.Nc6 (32.Ned3 Nc4 33.Nb3 Kf7+–) 32...Nd5 (32...Nc4 33.Nd8 Ra5 34.Ra5 Na5+–) 33.Nb3?? (33.Nb8 Ra8 34.Nd7 Kf7+–) 33...Kf7?? (better is 33...Rc6 34.a6 Rc8+=) 34.Nb8+– Ra8 35.Nc6 Nb6?? (better is 35...Ra6=) 36.a6 (better is 36.ab6 Ra1 37.Na1+–) 36...Ke8 37.Nc5 Nc5 38.dc5 Nd7 39.Ra5 Nb8 40.Nb8 Rb8 41.g3 Kd7 42.a7 Ra8 43.Ra6 f5 44.Rd6 Ke7+/– 45.Ra6 Kd7 46.Kf1 e5 47.Ke2 e4 48.Kd2 Kc7 49.c6 h6 50.Kc3 g5 51.Kd4 Rd8 52.Ke5 f4 53.a8Q (53.a8Q Ra8 54.Ra8 fe3 55.fe3 Kc6 56.Ra6 Kd7 57.Rh6+–) 1–0. Valpa – Mercator, playchess.de, 2002.

9.Bf6 Qf6 10.d4 Bb4 11.Nd2 0–0 12.Ngf3 e5 13.0–0 ed4 14.Nd4 Rad8 15.Ne4 Qe5 16.Ng3 Nf6 17.Qb3 Bc5 18.Qb7 Bd4 19.ed4 Qd4 20.h3 Qb6 21.Qb6 ab6 22.Rfb1 Rd6 23.Rb5 h6 24.Rab1 Ra8 25.R1b2 Rc6 26.Rb6 Rb6 27.Rb6 Ra2 28.Nf5 Kh7 29.Nd6 Kg6 30.Rb7 Ra6 31.Nf7 Ne4 32.Ne5 Kh7 33.f3 Ra1 34.Kh2 Ng5 35.h4 Ne6 36.Rb6 Nf4 37.Kg3 Ne2 38.Kg4 Ra2 39.Rb4 Nc3 40.g3 Nd5 41.Re4 Nf6 42.Kf4 Ne4 43.fe4 g6 44.Nd7 Kg7 45.e5 Kf7 46.Nc5 Rc2 47.Ne4 Ke6 48.g4 Rc4 49.g5 h5 50.Kf3 Ke5 51.Nf6 Rc3 52.Kg2 Rc2 0–1. bluepiramid2 (1615) – peterklein, internet, 2014.

9.Nf3 Bc5

10.Qb3 0–0 11.0–0 Nb6 12.d3 Qe7 13.Rc1 Rfc8 14.Nbd2 Bd6 =.

10.Qb3 0–0 11.d4 Be7 12.0–0 Rc8 13.Ba3 Nb6 14.Nbd2 Bd6 =.

10.Qb3 0–0 11.Bf6 Nf6 12.0–0 b6 13.d4 Bd6 14.Rc1 Qe7 =.

10.Qb3 b6 11.0–0 0–0 12.d4 Bd6 13.Ba3 Qe7 14.Bd6 Qd6 =.

10.Qb3 b6 11.Nc3 Be7 12.Rc1 0–0 13.d4 Rc8 14.0–0 a6 =.

10.Qb3 b6 11.d4 Bd6 12.Ba3 Rc8 13.0–0 Qe7 14.Bd6 Qd6 =.

10.Qb3 Qb6 11.0–0 Qb3 12.ab3 Ke7 13.Rc1 Rhc8 14.d4 Bb4 =.

10.Qb3 Qb6 11.Qb6 Bb6 12.Na3 Rc8 13.Rb1 Ke7 14.Ke2 Rhd8 =.

10.Qb3 Qb6 11.Bf6 Qb3 12.ab3 Nf6 13.d4 Bd6 14.Ke2 Ke7 =.

10.Qb3 Bb6 11.0–0 Nc5 12.Qb5 Qd7 13.Qd7 Ncd7 14.Rc1 0–0 =.

10.Qb3 Bb6 11.Nc3 0–0 12.d4 Ba5 13.Rc1 Qb6 14.0–0 Rfc8 =.

10.Qb3 Bb6 11.d4 Ba5 12.Nc3 Qb6 13.0–0 0–0 14.Rfc1 Rfc8 =.

10.Qb3 Rc8 11.0–0 Qb6 12.Bf6 Nf6 13.d4 Qb3 14.ab3 Bb6 =.

10.Qb3 Rc8 11.Nc3 Bd6 12.Ba3 Ba3 13.Qa3 a6 14.Rc1 Qe7 =.

10.Qb3 Rc8 11.d4 Be7 12.Nc3 0–0 13.0–0 Qa5 14.Rfc1 Nb6 =.

10.Qb3 Be7 11.Bf6 Bf6 12.d4 Nb6 13.0–0 0–0 14.Nc3 Rc8 +=.

10.Nc3 0–0 11.0–0 Rc8 12.Rc1 a6 13.d4 Ba7 14.e4 Qe7? 15.Qb3+/– b5 16.Ba3 Qe8 17.e5 Nd5 18.Nd5 ed5 19.Qd5 Nb6 20.Qb7 Rb8 21.Qa7 (21...Nc4 22.Bf8 Kf8 23.Qa6+–) 1–0. pierre – schack08, internet, 2008.

10.Nc3 0–0 11.Rc1 Bd6 12.Nb5 Bb4 13.a3 Be7 14.0–0 Qa5 =.

10.Nc3 0–0 11.d3 Rc8 12.Rc1 Bd6 13.0–0 Qa5 14.Qb3 Ne5 =.

10.Nc3 0–0 11.d4 Bd6 12.Qb3 Nb6 13.e4 Bc7 14.0–0 Rc8 =.

10.0–0 0–0

11.Qb3 Nb6 12.d3 Qe7 13.Nbd2 Rac8 14.Rac1 Nfd5 =.

11.Nc3 a6 12.d4 Be7 13.Qb3 b5 14.Ba3 Rb8 =.

11.d3 Bd6 12.Nbd2 Qe7 13.Rc1 Rfd8 14.e4 e5 =.

11.d4 Be7 12.Qb3 Rc8 13.Nc3 Qa5 14.Rfc1 Rfd8 =.

11.Bf6 Nf6 12.Qb3 b6 13.d4 Bd6 14.Rc1 Qe7 =.

10.0–0 Nb6

11.Qb3 0–0 12.d3 Rc8 13.Rc1 Qe7 14.Nbd2 Rfd8 =.

11.Nc3 0–0 12.d3 Rc8 13.Rc1 Nfd5 14.Qe2 Qe7 =.

11.d3 0–0 12.Qb3 Qe7 13.Nbd2 Rac8 14.Rac1 Nfd5 =.

11.Qe2 Rc8 12.Rc1 0–0 13.d3 Qe7 14.Nc3 Rfd8 =.

11.Bf6 Qf6 12.Nc3 Be7 13.a4 0–0 14.Qb3 Rfc8 =.

10.0–0 Rc8

11.Qa4 b5 12.Qa6 Rb8 13.Bf6 Nf6 14.d4 Qb6 =.

11.Qb3 Qb6 12.Bf6 Nf6 13.d4 Qb3 14.ab3 Bb6 =.

11.Nc3 a6 12.Rc1 b5 13.Qb3 0–0 14.d4 Bd6 =.

11.d3 0–0 12.Nbd2 Qe7 13.Rc1 Rfd8 14.Qb3 Nd5 =.

11.d4 Be7 12.Ba3 0–0 13.Qb3 Nb6 14.Nbd2 Bd6 =.

10.0–0 Bd6

11.Na3 0–0 12.Rc1 Qe7 13.Nb5 Rfd8 14.Bf6 Nf6 =.

11.Nc3 a6 12.d3 0–0 13.Qe2 b5 14.Ne4 Ne4 =.

11.d3 0–0 12.Nbd2 Qe7 13.Rc1 Rfd8 14.e4 Bf4 =.

11.Qe2 0–0 12.e4 Bf4 13.Rc1 Rc8 14.Rc8 Qc8 =.

11.Bf6 Nf6 12.Qb3 Qd7 13.Nc3 Rc8 14.e4 Ng4 =.

10.Qb3 Rb8

11.0–0 b5 12.Rc1 0–0 13.Bd4 Qe7 14.Bc5 Nc5 =.

11.Nc3 b5 12.Rc1 0–0 13.0–0 a6 14.d4 Bd6 =.

11.d3 Qe7 12.0–0 0–0 13.Rc1 Rfc8 14.Na3 Nd5 =.

11.d4 Bd6 12.0–0 b5 13.Rc1 0–0 14.Nbd2 Qa5 =.

11.Bf6 Nf6 12.Qb5 Nd7 13.0–0 a6 14.Qa4 Bd6 =.

10.Nc3 a6

11.0–0 Rc8 12.Rc1 b5 13.Qb3 0–0 14.a4 b4 =.

11.Qb3 b5 12.d4 Bd6 13.0–0 b4 14.Na4 0–0 =.

11.Rc1 Rc8 12.0–0 b5 13.Qb3 0–0 14.a4 b4 =.

11.d3 0–0 12.0–0 Rc8 13.Rc1 b5 14.Qe2 Qa5 =.

11.d4 Bd6 12.Qb3 Qa5 13.0–0 b5 14.Ng5 Be7 =.

10.Nc3 Rc8

11.0–0 Bb4 12.a3 Be7 13.Qa4 0–0 14.d4 Nb6 =.

11.Qa4 Qe7 12.Rc1 0–0 13.0–0 Rfd8 14.Qh4 Bb4 =.

11.Rb1 a6 12.0–0 0–0 13.d4 Bd6 14.e4 Bb4 =+.

11.Qb3 Bd6 12.Ba3 Ba3 13.Qa3 a6 14.Rc1 Qe7 =.

11.Rc1 Qa5 12.Qa4 Qb6 13.Rc2 0–0 14.0–0 Rc6 =.

10.Nc3 Be7

11.0–0 0–0 12.Rc1 Rc8 13.d4 a6 14.Qb3 b5 =.

11.Rb1 0–0 12.0–0 a6 13.d3 Rc8 14.Qd2 Nc5 =.

11.Rc1 Rc8 12.0–0 0–0 13.d4 Qb6 14.Qe2 Qa5 =.

11.d3 0–0 12.0–0 Nc5 13.Ba3 Qa5 14.Na4 Rfc8 =.

11.d4 Rc8 12.0–0 b5 13.d5 a6 14.e4 Nc5 =.

9.Nf3 Be7

10.0–0 0–0

11.Nc3 e5 12.d3 =.

11.Bf6 Nf6 12.Qb3 Qd7 =.

11.Nc3 a6

12.Rc1 Rc8 =.

12.d3 Nc5 13.Nd4 e5 =.

12.d4 Qa5 13.Qd3 Rfc8 14.Rfc1 =.

12.d4 Qa5 13.Qd3 Rfd8 14.Ne4 Qd5 (14...Rac8 15.Nf6 Nf6 16.a4+= (16.Rfc1 Rc1 17.Bc1 Rc8 18.e4 Rc3) 16...Nd5 17.Rfc1 g6 18.e4 Nb4; 14...Ne4 15.Qe4 Rac8 16.a4 Rc7 17.Qd3 Rdc8 18.Ba3 Ba3; 14...Qb5 15.Qb5 ab5 16.Ng3 Rdc8 17.Rfc1 Nd5 18.Rc8 Rc8) 15.Nf6 (15.Nc3 Qa5 16.Ne4 Rac8 17.a4 Ne4 18.Qe4 Rc6) 15...Nf6 16.Nd2 (16.Ba3 Ba3 17.Qa3 Ne4 18.Rac1 Rac8) 16...Rac8 17.e4 (17.a4 Bb4+= (17...Qa5 18.Nc4 Qb4) 18.Rfc1 h6) 17...Qa5 (17...Qb5 18.Qb5 ab5 19.Rfc1–/+) 18.Nb3+= (18.a3 g6) 18...Qa4 (18...Qb5+=) 19.e5 (19.Rfc1!?=) 19...Nd5–/+ 20.Qe4 Qb5 21.Rfc1 a5 22.Rc8 (better is 22.Rab1!?–/+) 22...Rc8–+ 23.Rb1 a4 24.Nd2 Qa5 (24...Qb4 25.Nf1 a3 26.Ba1–+) 25.Nf1 (25.Nf3!?–/+) 25...a3–+ 26.Ba1 b5 27.Ne3? b4 28.Nd5? Qd5 29.Qe2 Qc4 30.Qe1 Qa2 31.Rd1 Qd5 32.Qe2 g6 33.Qa6 Rc6 34.Qa7 Bf8 35.h4 Rc2 36.Qa4 Qc6 37.Qb3 Qc4 38.Qe3 Qd5 39.h5 b3 40.hg6 hg6 41.Bc3 b2 42.Bd2 a2 43.Qe1 Rd2! 44.Rd2 b1Q 45.Rd1 Qdb3 46.Rc1 Qc1! 47.Qc1 Qb1 48.Qf1 a1Q 49.Qb1 Qb1 50.Kh2 Qf1 51.Kg3 g5 52.Kh2 Qf2 53.Kh1 Bb4 54.g3 Qg3 55.d5 Qh3 56.Kg1 Bc5# 0–1. Rohrbacher,Walter – Degenhardt,Norbert, GER–chT Seniors, 1994.

12.d4 b5 13.Qb3 =.

12.d4 Rc8 13.Qb3 b5 14.Ba3 Ba3 15.Qa3 Rc6 16.Rfc1 Qc8 17.Ne2 Rc1 18.Rc1 Qb7 19.Qc3 (19...Nd5 20.Qc6 Qc6 21.Rc6+=). marekt – composite, ChessWorld.net, 2008.

12.Qe2 b5 =.

12.Qe2 Nc5 13.d4 Nce4 14.Ne4 Ne4 15.Rfc1 Rc8 16.Rc8 Qc8 17.Rc1 Qd7 18.Qd3 Nf6 19.Ba3 Ba3 20.Qa3 Rc8 21.Ne5 Rc1 22.Qc1 Qb5 23.Qc8 Ne8 24.h3 Kf8 25.Qc5 Qc5+= 26.Nd7 Ke7= 27.Nc5 Nd6 28.Kf1 Kd8 29.Ke2 Kc7 30.Kd3 a5 31.Na4 Kc6= 32.f3 b6 33.g4 Kb5 34.Nc3+= Kb4 35.Ne4 Ne4 36.fe4 a4 37.d5 ed5?? 38.ed5+/– Kc5 39.e4 b5 40.a3 g6 41.g5 b4?! 42.ab4 Kb4 43.d6 a3 44.Kc2 (44...Kc4 45.d7+–) 1–0. Skaug,Thorbjorn – Gupta,Sudhir, Klubbmesterskap, 2003.

8.Be2 Bc6

9.Nf3 Qb6 10.Bf6 gf6 11.0–0 Bg7 12.Nc3 0–0 13.d4 Nd7 14.Qd2 Qc7 15.Rfc1 Qd6 16.e4 Nb6 17.Bb5 Rad8 18.Rab1 Rfe8 19.a4 a6 20.Ba6! Na4 21.Na4 Ba4 22.Bb7 Rb8 23.Qa5 Bd7 24.Qh5 Qf4 25.g3 Qg5?? 26.Ng5 (26...fg5 27.Rc7+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

9.Nf3 Bd6 10.0–0 0–0 11.Nc3 Nbd7 12.d4 Ne4 13.Ne4 Be4 14.Nd2 Bc6 15.Bf3 Rc8 16.Ne4 Bb8 17.Rc1 Nb6 18.Nc5 Nd5 19.a4 b6 20.Na6 Bb7 21.Nb8 Rb8 22.Qb3 Qd7 23.Rc2 Rfc8 24.Rfc1 Rc2 25.Rc2 h6 26.Ba3 Rc8 27.h3 Rc2 28.Qc2 f5 29.Bc1 Nb4 30.Qb3 Bf3 31.gf3 Nd5 32.Ba3 Kf7 33.f4 g5 34.fg5 hg5 35.a5 f4 36.ab6 ab6 37.e4 Nf6 38.Qb4 Ne4 39.Qf8 Kg6 40.Qg8 Qg7 41.Qe6 Nf6 42.d5 Qd7 43.Kg2 Qe6 44.de6 Ne8 45.Kf3 Kf6 46.e7 Kf5 47.Bb4 b5 48.Bc5 Nf6 49.Bb4 Ne8 50.Bc5 Nf6 51.Bb4 Ne8 ½–½. pbr9650 – bauska18, internet, 2014.

9.Nf3 Bd6 10.Na3 =.

9.Nf3 Nbd7 10.0–0= b6 (10...Bd6 11.Ba3 Nb6 12.Bd6 Qd6 13.Nc3=) 11.d4 (11.Nc3 Be7=) 11...Bd6 (11...Be7 12.Nc3=) 12.Nbd2 (12.Ne5 Bb7=) 12...Rc8 (12...0–0 13.Rc1 Bd5 14.Nc4=) 13.Nc4 Be7 14.a4 Bd5 15.Nfe5 0–0=+ 16.f3 Ne5 17.Ne5 Bb7 18.e4 Bb4 19.Qb3 Qe7 20.Rac1 Rfd8 21.Rfd1 Rc1 22.Rc1+= Bd2? 23.Ba3+– Qe8 24.Bb5 Nd7 25.Nd7 Rd7 26.Rc7!! Bc8 27.Ra7!! Qd8 28.Bd7 Bd7 29.Bd6 h6 30.Bc7 Qh4 31.Bg3 Qd8 32.Bc7 Qh4 33.g3 Qg5 34.Bb6 Bc6 35.Bc7 Be3 36.Kg2 Bd4 37.Bf4 Qh5 38.Rc7 Be4 39.g4! Qg4 40.Bg3 h5 41.Qb8 Kh7 42.Rf7 e5 43.Rf8 Bf3? 44.Rf3 h4 45.Qb1 g6 46.Qb7 Kh6 47.h3 Qg5 48.Qa8 Qd2 49.Bf2 e4 50.Qe4 (50…Bf2 51.Rf2 Qg5 52.Kh1 Qc1 53.Kh2 Qc7 54.Qf4 Qf4 55.Rf4+–) 1–0. Kamuf,Herbert – Wagner,Artur, Verbandsliga Nord Baden, 1997.

9.Nf3 Be7 10.0–0= Nbd7 (10...0–0 11.Nd4=) 11.Nd4 Bd5 (11...Qb6 A) 12.Nc6? Qb2 (worse is 12...Qc6 13.d4+=) 13.Nd4 Qa1–+; B) 12.Ba3=) 12.Nc3+= 0–0 13.d3 (13.Nd5 Nd5 14.Rc1 Qa5=) 13...b6 (13...Rc8 14.Rc1=) 14.Nd5+= Nd5 15.Nc6 Qe8 16.Ne7 (16.Rc1 Bd6+=) 16...Qe7 17.Bf3 Rac8 18.Bd5 (18.Rc1 Rc1 19.Qc1 Qg5+=) 18...ed5 19.Qg4 Nf6 (19...f5 20.Qd4+=) 20.Qg5 (20.Qa4 Qd7 21.Qh4 Rc6+=) 20...Rfd8 (20...Rc2 21.Rab1=) 21.Rac1 (21.Rfc1 Kf8+=) 21...Rc1 (21...a6 22.a3+=) 22.Rc1+/– (22.Bc1?! Qb4=) 22...Kf8 (22...b5 23.h3+/–) 23.Bf6 (23.Qh4 Kg8+/–) 23...gf6 (23...Qf6 24.Qf6 gf6 25.d4+/–) 24.Qf4 (24.Qh5 Kg8+/–) 24...Qd6 (24...Qa3 25.Qc7 Re8 26.Qc2+/–) 25.Qa4 (25.Qf5 Qa3 26.Rd1 Ke7+/–) 25...Qd7 26.Qh4 Rc8 27.Rd1 Qf5 28.h3 Rc2+= 29.e4 de4 30.de4 Qg6 31.Rd8 Kg7 32.Rd3 Rc5 33.f4 Qe4= 34.Rg3 Rg5 35.Rg5 fg5 36.Qg5 Kf8 37.Qd8 Kg7 38.Qd2 Qc4 39.Qb2 f6 40.Qf2 Qc1 41.Kh2 Qc5 42.Qg3 Kf7 43.Qd3 Kg8 44.Qd8 Qf8 45.Qc7 Qf7 46.Qb8 Kg7 47.a4 Qd7 48.f5 Qe7 49.Qg3 Kf8 50.Qb8 Kg7 51.Qg3 Kf8 52.Qf4 Kg7 53.Qg4 Kf8 54.h4 Qe5 55.Kh3 Qe1 56.Qf3 Qe7 57.Qa8 Kg7= 58.g3 Qd7 59.Qe4 Kf8 60.h5 Qe8 61.Qg4 Qe1 62.Qf3+= Qe8 63.h6 Qe7 64.Qa8 Kf7?? 65.Qh8+– Qf8 66.Qh7 Ke8 67.Qg6 Ke7 68.h7 (68.h7 a6 69.Qg8 Qh6 70.Kg4+–) 1–0. Bulcourf,Carlos (2295) – Etchelecu,Omar, Olivos op, 1993.

6.Bc4 Bd7

7.a4 a5 8.Nf3+/– Bb4 9.Nc3 Bc3 10.Bc3 Ne4 11.Be5 cb5 12.ab5 (12.Bg7? Rg8 13.ab5 Rg7–+) 12...f6 13.Qc2 fe5 14.Qe4 Qb6? (14...Bc8+–) 15.Ng5 Bb5 (15...Nc6 16.bc6 Qc6+–) 16.Rb1 (16.Rb1 Bc6 17.Rb6 Be4 18.Ne4+–) 1–0. pierred (2840) – rstilt (2340), net–chess.com, 2015.

7.a4 a6!? 8.Nc3 Qb6 +=.

7.a4 Bd6 8.Nf3 =.

7.a4 Be7 8.Nf3 0–0 9.0–0 a6 10.Nc3 ab5 11.ab5 Ra1 12.Ba1 cb5 13.Nb5 Bb5 14.Bb5 Nc6 15.d4 (15.Qb1 Qb6+=) 15...Ne4 16.Qd3 Qd5 17.Bc4 Qf5 18.Nd2 Nb4?? (better is 18...Nd2 19.Qd2 Rc8+=) 19.Qe4+– Qe4 20.Ne4 Ra8 21.h3 Nc2 (21...Rc8 22.Bb3+–) 22.Bc3 Bb4 (22...Rc8 23.Bb3 Na3 24.Ra1+–) 23.Bb4 Nb4 24.Rb1 Nc6 25.Rb7 Na5 26.Rc7 Nc4 27.Rc4 h6 28.Nd6 (28.Rc7 Ra6+–) 28...g5 (28...Ra7 29.Rc8 Kh7 30.Rc6+–) 29.Rc7 Rf8 30.Kf1 Kg7 31.Ke2 Kg6 32.g4 f5 (32...Kg7 33.Nc4+–) 33.Re7 (better is 33.Nc4 h5 34.Ne5 Kh6 35.gh5+–) 33...Rf6 (33...Kf6 34.Ra7 Rg8+–) 34.Ne8 fg4 (34...Rf7 35.Re6 Kh7 36.Nd6+–) 35.hg4 (35.Rg7 Kh5 36.Nf6 Kh4 37.Rh7 Kh3 38.Kf1 h5 39.Rh5) 35...Rf8 (35...Rf7 36.Re6 Kh7+–) 36.Rg7 1–0. brother (1605) – dzendzk, internet, 2012.

7.a4 Be7 8.Nf3 0–0 9.Nc3 a6 10.Qb3 ab5 11.ab5 Ra1 12.Ba1 cb5 13.Bb5 Bb5 14.Qb5 Qd7 15.Qb2 Nc6 16.d4 Nd5 17.0–0= Nc3 18.Qc3 Nb4 19.d5+= f6 20.de6 Qe6 21.Nd4 Qc8 22.Qb3 Kh8 23.Bc3 Na6 24.Rb1 Nc5 25.Qb5 Ne4 26.Be1 Nd6 27.Qb3 Re8 28.Bb4 Ne4 29.f3 Nc5 30.Bc5 Bc5 31.Qb7+/– Qd8 32.Nf5 Be3 33.Kh1 Bh6 34.h3 Qd2+= 35.Qe7 Qd8 36.Qf7 Re5? 37.Nh6+– gh6 38.Rb7?? Re1 (39.Kh2 Qd6 40.f4 Qf4 41.g3 Qf2#) 0–1. Freiberger,Jonas – Maetzing,Hans_Dieter, Werther Schloss op–B 6th, 2000.

7.a4 Be7 8.Nf3 a6 9.ba6 Na6 10.0–0 =.

7.Qb3 a6!? 8.b6 c5 =.

7.Qb3 Qb6 8.a4+/– a6 9.a5 (9.bc6 Qc6 10.Nf3 Qc8+/–) 9...Qc7 (9...Qd8 10.b6+=) 10.b6+/– Qd8 11.Nf3 Bd6 (11...c5 12.0–0+/–) 12.0–0 (12.Qd3 Bb4+/–) 12...Qe7 (12...c5!?+/–) 13.d4 Nd5? (better is 13...c5 14.Re1 Nh5+–) 14.e4+– Nf4 15.e5 (15.Bc1!? Ng6 16.e5 Bb4+–) 15...Bb4 16.Nc3 c5 (16...0–0 17.Ne4+–) 17.Ne4 (better is 17.dc5 Nc6 18.Rfd1+–) 17...Nc6? (better is 17...0–0 18.Bc1 Bc6 19.Nc5 Bc5 20.Bf4 Bf3 21.dc5 Bh5+–) 18.d5 (better is 18.Bc1 Nd5 19.Nd6 Kf8 20.dc5 Bc5 21.Nb7+–) 18...Na5 (better is 18...ed5 19.Nd6 Kf8 20.Bd5 Nd5 21.Qd5 Be6+=) 19.Qc2?? (better is 19.Ra5 ed5 20.Nd6 Kf8 21.Raa1 (21.Nb7 dc4 22.Qc4 Bb5 23.Qf4 Qb7 24.Rb5 ab5+–; 21.Bd5?! Ba5 22.Bb7 Rb8+/–) 21...dc4 22.Qc4+/–) 19...Nc4 (better is 19...ed5 20.Nd6 Kf8 21.Bd5 Nd5 22.Ra5 Ba5 23.Qc5 Bb6 24.Qd5 Bc6+=) 20.Qc4? (20.d6 Qd8 21.Qc4 Nd5+=) 20...Nd5 (20...ed5 21.Nd6 Qd6 22.Qb4 (22.ed6?? dc4 23.Be5 Nd3–+) 22...cb4 23.ed6–+) 21.Rfd1 (better is 21.Nd6 Kf8 22.Nb7 Nb6 23.Qe4–/+) 21...Bb5?? (better is 21...Nb6 22.Qc1 h6–+) 22.Qb5!+– Qd7?? (22...ab5 23.Nd6 Double attack (23.Ra8 Decoy)) 23.Nd6 Ke7 24.Qd7 Kd7 25.Nb7 Kc6 26.Nd6 f6 27.b7 Ra7 28.Rdc1 fe5 29.Be5 a5 30.Nd4 Kd7 31.N4b5 Ra6 32.Nf7 Rf8 33.b8Q Rb8 34.Bb8 Rb6 35.Ne5 Kc8 36.Nd6 Kb8 37.Nd7 Kc7 38.Nb6 Kb6 39.Nc4 Kb5 40.Nd6 Kc6?? 41.Ne4+– Kb5 42.Nc5! Bc5 43.Rc5! Kc5 44.Ra5 Kd6 45.Kf1 g5 46.Ra7 h5 47.Rh7 h4? 48.Rg7 Ne7 49.Rg5 Nf5 50.Rf5! ef5 51.g3 hg3 52.hg3 Ke5 53.Ke2 Ke4 54.f3 Kd4? 55.g4 f4?? 56.g5?? Ke5= 57.Kd3 Kf5 58.g6 Kg6 59.Ke4 Kg5 60.Ke5 Kg6 61.Kf4 Kf6 62.Kg4 Kg6 63.f4 Kf6 64.f5 Kg7 65.Kg5 Kf7 66.f6 Kf8 67.Kg4 Kf7 68.Kg5 Kf8 ½–½. lousse – konik205 (1795), internet, 2013.

6.Bc4 Be7

7.a4 0–0 8.Qf3 =.

7.a4 0–0 8.Nf3 a6 9.Nc3 Bd7 10.0–0 ab5 11.ab5 Ra1 12.Qa1 cb5 13.Nb5 Bc6 14.Nbd4 Bd5 15.Rc1 Qb6 16.Bd5 Nd5 17.Rb1 Rc8 18.Bc3 Qa6 19.Qb2 Nc3 20.dc3 Rc7 21.Nb5 Rd7 22.Ne5 Rd8 23.Nc7?? Qd6–+ 24.f4 Qc7 25.Qb7 Qb7 26.Rb7 Bf6 27.Nf7–/+ Rd7 28.Rd7 (28...Nd7 29.Ng5 Bg5 30.fg5–+). gtate (1920) – ouldahmed (2000), net–chess.com, 2004.

7.a4 a6 8.Nf3 0–0 9.Nc3 Nbd7 (9...ab5 10.ab5 Ra1 11.Qa1 cb5 12.Nb5=) 10.0–0 Nb6 11.Be2 ab5 12.ab5 Ra1 13.Qa1 Bd7 14.Qb1 Nbd5 (14...Nfd5 15.Ne5=) 15.Nd5 (15.Rc1 Nc3 16.Bc3 Ba3+=) 15...Nd5 16.bc6 Bc6 17.Rc1 Bd6 (17...Qd7 18.Ne5 Qd6 19.Nc6 bc6 20.Qe4+=) 18.Qa1 (18.Be5 f6 19.Bd6 Qd6+=) 18...f6= 19.Nd4 Bd7 20.Qa2 Qe7 (20...Qb8 21.Bc4 Bh2 22.Kh1+=) 21.Qb3 (21.Bf3 Qf7+=) 21...Ra8 (21...Rb8 22.Nf5 ef5 23.Qd5 Qe6 24.Bc4 Qd5 25.Bd5 Kf8 26.d3=) 22.Bc4 (22.Qb7? Rb8 23.Nf5 Rb7 24.Ne7 Ne7–+) 22...Kh8 (22...Qf7 23.Bd5 ed5 24.Qb6+=) 23.Bd5 (worse is 23.Qb7 Rb8 24.Bd5 ed5 25.Qd5 Rb2–/+) 23...ed5 24.Qd5 (worse is 24.Qb7 Rb8 25.Qd5 Rb2–/+) 24...Qe5 25.Qe5 Be5 26.f4 Bd6 27.Kf2 b5 28.Kf3 Kg8 29.d3 Ra2 30.Rb1 b4 31.g4 Kf7 32.h4 Ra5 33.e4 h5 34.g5 fg5 35.fg5 Bg4 36.Kf2 Ra2 37.Ke3 Bc5 38.Rc1 Bd6= 39.g6 Kg6 40.Rc6 Rb2 41.Rd6 Kh7 42.Kf4 Rh2 43.Kg5 Rg2+= 44.Rb6 Bc8 45.Kf4+= Rg4 46.Ke5 Rh4 47.Nf3 Rg4 48.Rb4 g5 49.Rc4 Rg3+= 50.Rc7 Kg6 51.Rc8 Rf3 52.d4 Rf7 53.d5 g4 54.d6 g3 55.Rg8 Rg7 56.Rg7 ½–½. Baumann,Heinz – Bartels,Klaus, remoteschach.de, 2003.

7.Nf3 0–0 8.0–0 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Bd7 (11...Nbd7 12.bc6 bc6 13.Qc2 Qa5 14.Nc3 Ba6 15.Ba6) 12.Nc3 Qa5 13.Qb3 Nd5 (13...Rc8 14.Bd3 cb5 15.Nb5) 14.bc6 (14.Ne5 Nb4 15.Bb2) 14...bc6 (14...Bc6 15.Bb2) 15.Bb2 Qc7 16.Rc1 Nb4 17.Ne4 c5 18.Qc3 f6 19.Qb3 (19.d4!?+/–) 19...Qc6 20.Ng3 N8a6 21.d4 Rb8 22.Nf5 Bf8 23.dc5 (23.Ba3 Nc7+=) 23...Nd5= (23...Bc5? 24.N3d4 Qe4 25.Ne6 (25.Be6?! Be6 26.Ne6 Nd3 27.Ne7 Kh8 28.Nc5 Rb3 29.Ne4 Nc1+=) 25...Be6 26.Be6 Kf8 27.Bd4+–; 23...Nc5?! 24.Qd1=) 24.Bd5 (better is 24.Qa3!? Nc5 25.N5d4=) 24...ed5 25.Qa2 Nc5 (better is 25...Bf5!? 26.Nd4 Qb7–+) 26.N5d4 Qb7 27.Bc3 Ne4 28.Be1 Be8 29.Nd2 Bf7 30.Rb1 Qc7 31.Rb8 Qb8 32.Qb3 Qa7 33.f3 Nc5 34.Qd1 Bg6 35.N2b3 Nd3 36.Bg3 Ne5 37.Qa1 Qe7 38.Qa5 Bf7 39.Nf5 Qb7 40.Nfd4 g6 41.Qb5 Qc7 42.Qe2 Bb4 43.h3 Qc3 44.Bf2 Nc6 45.Qc2 Nd4 46.Nd4 Qa1 47.Kh2 Bd6 48.f4 Qf1 49.Qe2 Qb1 50.Qc2 Qb4 51.Qc8= Kg7 52.Qd7 Kg8 53.Ne6 Qb8 54.Nd8 Qc7 55.Qc7 Bc7 56.Nf7 Kf7 57.Kg1 Ke6 58.Kf1 Kf5 59.Ke2 Ke4 60.Bh4 Bb6 61.Bf2 f5 62.g3 h5 63.h4 ½–½. Khrustalev,Alexander (1930) – Nasonov,Vadim (2260), Open, Dubna RUS, 2007.

7.Nf3 0–0 8.a4 a6 9.0–0 =.

7.Nf3 0–0 8.a4 Nd5 9.d4 Bf6 10.0–0 cb5 11.ab5 Nd7 12.Nc3 N7b6 13.Bd3 Bd7 14.Qc2 g6 15.Ba3 Re8 16.Ne4+/– Be7 17.Nd6 Bd6 18.Bd6 Bb5? 19.Bb5+– Qd6 20.Be8 Re8 21.Ra7 Rc8 22.Qb2 Nc4 23.Rb7 Nb2–+ 24.Rb2 Qa3 25.Rbb1 Rc2 26.Ra1 Qd3 27.Ne1–/+ Qe2 28.Nc2 Qc2 29.Rfc1 Qf5 30.h3 Kg7 31.Rc5 Qd3 32.Rac1 Nb4 33.Ra1 Nc2 34.Rc1–/+ Nb4 35.Ra1–+ Qd2 36.Rca5 Nd3 37.R5a2 Qb4 38.Ra3 Qb5 39.Ra5 Qe8 40.R5a3–/+ Nb2 41.R3a2 Nc4 42.Rc1 Nd6 43.Rb2 Ne4 44.Rc7–/+ Qd8 45.Rbb7 Nd6 46.Ra7 Qf6 47.Rd7–/+ e5?? 48.Ra6+– ed4 49.Rad6 Qf5 50.Rd4 Qb1 51.Kh2 (51...Qf5 52.f4+–; 51.Rd1 Qc2+–) 1–0. b4_player – anastasia_2003, gamecolony.com, 2006.

7.Nf3 0–0 8.a4 Nbd7 9.d4 Nb6 10.Qb3 cb5 11.ab5 Nc4=+ 12.Qc4 Bd7 13.0–0 Rc8 14.Qb3= Qb6 15.Nc3 Nd5 16.Nd5 ed5 17.Rfc1 Be6 18.Rc8 Rc8= 19.Rc1 a6 20.Rc8= Bc8 21.h3 Be6 22.Ne5 Qb5–/+ 23.Qb5 ab5 24.Nd3 g6 25.Bc3=+ b6 26.Bb4 Bb4 27.Nb4= Kf8 28.Kf1 Ke8 29.Ke2= Kd7 30.Kd3 Kc7 31.e4 de4 32.Ke4 f5 33.Ke5 Bc4 34.f4 Kd7 35.d5 h6 36.g4 fg4 37.hg4 Be2 38.g5+= h5 39.Nc2 h4–/+ (40.Nd4 Bd3=+) 0–1. wood – alarmimherz1, Live Game Caissa's Web, 2005.

7.Nf3 0–0 8.a4 Ne4 9.0–0 cb5 10.ab5 Nd6 11.Be2 Bd7 Exerts pressure on the isolated pawn 12.Nc3 Bf6 (12...a6 13.d4=) 13.d4+= Qb6 Increasing the pressure on the isolated pawn on b5 14.Qb3 a6 15.Na4 Qd8 16.Nc3 (16.ba6 Na6 17.Nb6 Ra7+/–) 16...a5 (16...Qb6!?=) 17.Ba3 Be7 18.Rac1 Be8 (18...Qb6 19.Bc5 Qd8 20.Qa4+/–) 19.d5 (19.Qa4+/–) 19...ed5 (better is 19...a4!? 20.Qc2 Bd7+=) 20.Nd5+/– Nd7?? (better is 20...Nf5 21.Ne7 Ne7+–) 21.Ne7+– Qe7 22.Rfd1 a4 23.Qb1 (23.Qb1 Qe6 24.Bd6+– (worse is 24.Rd6 Qg4 25.Rd4 Qh5+–); 23.Bd6 Qd6 (23...ab3?? 24.Be7 b2 25.Rb1+–) 24.Qa4 Ra4 25.Rd6 Nf6+–) 1–0. Brinkmann,Wilhelm – Paltrinieri,Mario, corr ICCF TT–4–90, 1990.

7.h3 0–0 8.Nf3 cb5 9.Bb5 Bd7 10.Qb3 Bb5 11.Qb5 Qd7 12.a4 a6 13.Qb6 Qc6 14.a5 Qb6–/+ 15.ab6 Nbd7 16.Bd4 Bc5 17.Nc3 Bd4–/+ 18.Nd4 Nb6 19.0–0 Nbd5 20.Nd5 Nd5 21.Nb3 b5 22.Na5 Rfb8–+ 23.Rfc1 Rc8 24.Nc6 Kf8–+ 25.Ra5? Rc7 26.e4? Nb4!! 0–1. gtate (1900) – rhand (2200), net–chess.com, 2004.

5.c4 Bc5

5.c4 Bc5

6.a4 0–0 A) 7.Nf3 a6 (7...b6 8.d4 Bb4 9.Bc3 Bd6 10.Ne5 cb5 11.ab5 Bb7 12.Nd2=) 8.d4 Bb4 9.Bc3 Be7 10.ba6 Na6 11.c5 Nd7 12.Be2=; B) 7.d4 Be7 (7...Bb4 8.Bc3 Be7 9.Nf3 dc4 10.Bc4 cb5 11.ab5 Nd5 12.0–0=) 8.Nf3 cb5 9.ab5 a6 10.Ba3 Qa5 11.Nfd2 Re8 12.Be2=.

6.a4 a6 A) 7.Nf3 ab5 (7...0–0 8.d4 Bb4 9.Bc3 Be7 10.ba6 Na6 11.c5 Nd7 12.Be2=) 8.ab5 Ra1 9.Ba1 0–0 10.Qc2 b6 11.Ng5 d4 12.Bd3=; B) 7.d4 Bb4 (7...Be7 8.Nc3 ab5 9.ab5 Ra1 10.Qa1 cb5 11.Nb5 0–0 12.Nf3=) 8.Bc3 Be7 9.ba6 Na6 10.Nf3 0–0 11.c5 Nd7 12.Be2=.

6.a4 Bb4 A) 7.cd5 ed5 (7...cd5 8.Nf3 0–0 9.Be2 Bd6 10.0–0 a6 11.Nc3 e5 12.d4=) 8.Bd3 0–0 9.Nf3 Bg4 10.0–0 Re8 11.h3 Bh5 12.Qb3=; B) 7.Nf3 a6 (7...0–0 8.Be2 dc4 9.Bc4 Bd6 10.0–0 a6 11.d3 ab5 12.ab5=) 8.cd5 ed5 9.Be2 0–0 10.0–0 ab5 11.ab5 Ra1 12.Ba1=.

6.a4 dc4 7.Bc4 cb5 8.ab5 b6 (better is 8...0–0!?= 9.d4 Bd6 10.Nf3 Nbd7 11.Nc3 Nb6 12.Bd3 Nbd5 13.0–0 Nc3 14.Bc3 Nd5; 8...Nbd7 9.d4 (9.Nf3 Nb6 10.Bb3 Nbd5 11.Nc3 0–0 12.0–0 Bd7 13.Nd5 ed5 14.Bf6 Qf6) 9...Bb4 (9...Nb6 10.Bd3 Bb4 11.Nc3 Nbd5 12.Nge2 0–0 13.0–0 Qd6 14.Na2 Ba3) 10.Nd2 Nb6 11.Bd3 Qd5 12.Ne2 Qg2 13.Rg1 Qh2 14.Rg7 Kf8) 9.Qf3+/– Nd5 10.Bg7 (10.Qg3 Be7 11.Nf3 Bf6 12.Bd5 ed5 13.Bf6 Qf6 14.Nc3 0–0) 10...Rg8 11.Bb2 (11.Nc3 Bb7 12.Bh6 Rg6 13.Bf4 Nf4 14.Qb7 Ng2) 11...Bb7 12.Ne2 Qg5 (12...Nd7 13.Bd5 Bd5 14.e4 Bb7) 13.Ng3 (13.e4 Nb4 14.0–0 Nc2) 13...Nd7 (13...Qg4 14.Qg4 Rg4) 14.Nc3 (better is 14.0–0!?+/– Bb4) 14...Ne5= 15.Qe4 Nc4 16.Qc4 Nc3 17.Bc3 Bd5 (17...Bg2 18.Ne4 Be4 19.Qe4+=) 18.Qa4 (18.Qe2 Qh4 (18...Bg2? 19.f4 Qg3 20.hg3 Bh1 21.g4+–) 19.e4 Rg3 20.fg3 Qe4 21.Qe4 Be4+=) 18...Be7 (better is 18...Bg2!? 19.Ne4 Be4 20.Qe4 Qg2 21.Qg2 Rg2=) 19.e4+/– Bb7 20.d4?? (better is 20.d3+/–) 20...Be4!–/+ 21.Ne4 (21.0–0!? Bd3 22.Rfc1–/+) 21...Qg2–+ 22.Ng3 (22.0–0–0 Qe4 23.Qc2 Ba3 24.Kd2 Qf3–+) 22...Rg3! 23.hg3 (23.fg3 Qf3 (23...Qh1); 23.hg3 Qf3 (23...Qh1)) 23...Qh1 24.Kd2 Qf3 25.Kc2?! (25.Qc4 Qf2 26.Kd1 Qf3 27.Kc2 Qe4 28.Qd3 Qg4–+) 25...Qf2 (25...Rc8 26.Qb3–+) 26.Kb3 Qg3 27.Qc4 Qd6 28.Rg1 Kd7 29.Qa4 Qd5 30.Kb2 Qf5 31.Rc1 h5 32.Qa6 Qd5 33.Qa4 h4 34.Ka1 h3 35.Qc2 Qb5 36.Be1 Bd6 37.Qe4 Qd5 38.Qc2 h2 39.Qh7 h1Q 40.Qf7 Be7 41.Qe7 Ke7 42.Bb4 Kf6 43.Rh1 Qh1 44.Kb2 Rc8 45.d5 Qc1 46.Kb3 Qc2 47.Ka3 b5 48.Bc5 Rc5 49.de6 Ke6 50.Kb4 Qc3# 0–1. Torres Herrero,Fernando – Garcia Manteca,Eduardo, Valladolid CC Regalado, 1990.

6.a4 Bd6 A) 7.d4 dc4 (7...0–0 8.c5 Be7 9.Bd3 b6 10.cb6 ab6 11.Nf3 Bb4 12.Bc3=) 8.Bc4 cb5 9.Bb5 Bd7 10.Nf3 Bb5 11.ab5 0–0 12.0–0=; B) 7.Nf3 0–0 (7...a6 8.d4 b6 9.Qc2 0–0 10.c5 Be7 11.cb6 Bb4 12.Bc3=) 8.Be5 Be5 9.Ne5 Nbd7 10.Nd7 Bd7 11.d4 dc4 12.Bc4=.

6.a4 Qe7 7.Nf3 (7.d4 Bb4 (7...Bb6 8.Nd2 Ba5 9.Ngf3 Bd7 10.Ba3 Qd8 11.Bd3 cb5 12.cb5+=) 8.Bc3 Ne4 9.Qb3 Nc3 10.Nc3 cb5 11.ab5 a5 12.ba6=) 7...Nbd7 (7...a6 8.bc6 Nc6 9.d4 Bb4 10.Bc3 Bc3 11.Nc3 Qb4 12.Qc2+=; 7...0–0 8.d4 Bb4 9.Bc3 Bc3 10.Nc3 Rd8 11.Rc1 a6 12.c5=) 8.Be2 (8.d4 Bb4 9.Bc3 e5 10.Bb4 Qb4 11.Nbd2 e4 12.bc6=) 8...e5 (8...cb5 9.cd5 ed5 10.ab5 0–0 11.0–0 Nb6 12.Be5=) 9.0–0 (9.cd5 cd5 10.d4 Bb4 11.Nfd2 0–0 12.0–0=) 9...0–0 (9...dc4 10.bc6 bc6 11.Bc4 e4 12.Nd4=) 10.d4 (10.Ne5 Ne5 11.Be5 Qe5 12.d4=) 10...ed4 11.Nd4 (11.bc6 bc6 12.Nd4=) 11...Ne5 (11...dc4 12.bc6=) 12.cd5 cd5 (12...Nd5 13.Qc2=) 13.Qc2 Neg4 14.Nf5 (14.Nf3 Ne4 15.Nc3 Ngf2 16.Rf2 Nf2 17.Nd5 Qd6+/–) 14...Bf5 15.Qf5 Ne3 16.fe3 Qe3 17.Kh1 Qe2 (better is 17...Ne4!? 18.Nc3 Nc3 19.Bc3 Qc3=) 18.Bf6+= gf6 19.Nc3 Qe6 20.Nd5 Qf5 21.Rf5 Bd4 22.Nf6 Bf6 23.Rf6 Rad8 24.b6 Kg7 25.Raf1 Rd4 26.a5 Ra4 27.R6f5 (worse is 27.ba7 Ra5 28.Rd6 Ra7+=) 27...ab6 28.ab6 f6 29.Rb1 Rfa8 30.h3 Ra1 31.Rff1 R1a2 (31...Rb1!? 32.Rb1 Kg6=) 32.Rfd1+= Rf8 33.Rbc1 Rb8 34.Rd7 (34.Rd7 Kg6 35.Rcc7+/–) 1–0. poesimannen (1920) – taivaanlahja (1635), gameknot.com, 2013.

6.Nf3 0–0 7.Bd3 a6 8.a4 (8.cd5 Qd5 9.Qc2 Rd8 10.Bf6 Qd3 11.Qc5 gf6=) 8...Bd7 (8...dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 cb5 12.Bb5=) 9.cd5= cd5 10.0–0 (10.Qc2 Bd6=) 10...ab5 (10...Bd6 11.Qc2=) 11.ab5 Ra1 12.Ba1 Qb6 (12...Ne4 13.Qc2=) 13.Bf6+= gf6 14.Nc3 Bb4 (14...Be7 15.Qa4 f5 16.Ra1+=) 15.Nd4 (15.Bh7 Kg7 16.Bd3 Rh8+/–) 15...Bc3 (15...f5!?+=) 16.Qh5 f5 17.dc3 Qa5 (17...Qc5 18.Rc1+/–) 18.g4 (18.Qg5 Kh8 19.Qf6 Kg8+/–) 18...Qc3 19.Qg5 Kh8 20.Qf6 Kg8 21.Rd1 Qb4 (21...Re8 22.gf5 Qc5 23.fe6 Qe7 24.ed7 A) 24...Qf6 25.de8Q (25.de8B?! Qe5+–; 25.de8N?! Qe5+/–) 25...Kg7 26.Nf5 Qf5 27.Bf5 Nd7 28.Qd7 Kf6 29.Qd8 Kf5 30.Rd5 Ke4 31.Qg5 Kf3 32.Qh5 Ke4 33.Qf5; B) 24...Nd7+–) 22.gf5 Qa4 23.Bc2 Qb4 (23...Qc2 24.Nc2 Rc8+–) 24.Kh1 Qd6 (24...Rc8 25.Rg1 Kf8 26.Ne6 Be6 27.fe6 Ke8 28.Qf7 Kd8 29.Rg8 Qf8 30.Rf8) 25.Rg1 (25...Qg3 26.Rg3#) 1–0. marekt – smeta, sachy.sk, 2008.

6.Nf3 cb5 7.cd5 ed5 8.Qc2 Bd6 (better is 8...b6!? 9.Bb5 Bd7=) 9.Bf6+/– Qf6?? (better is 9...gf6 10.Bb5 Kf8+/–) 10.Qc8+– Ke7 11.Qb7 Nd7 12.Nc3 Rhb8 13.Qb8! Qc3 (13...Bb8 14.Nd5 A double attack) 14.Qd6! Kd6 15.dc3 Rb8 (15...a6 16.a4 ba4 17.Ra4+–) 16.Rd1 (16.Nd4 a6+–) 16...Nf6 17.Bd3 Ke7 (17...a6 18.Kd2+–) 18.Nd4 Kf8 (18...Rc8 19.Nb5 a6 20.Nd4+–) 19.Nb5 g6 (19...a6 20.Nc7 a5 21.Be2+–) 20.c4 dc4 (20...a6 21.Nc3 dc4 22.Bc4+–) 21.Bc4 a6 (21...a5 22.Nd6+–) 22.Nd6 Rb2 23.0–0 (23.Bb3 Ng4+–) 23...Ng4 24.Bf7 (24.Rb1 Rd2 25.Nf7 Rc2+–) 24...Kg7 25.Bb3 a5 26.Nc4 Re2 27.Ra1 h5 28.Bd1 Ra2 29.Ra2 (29.Ra2 Nf6 30.Ra5+–) 1–0. Johansson,Ragnar – Kroon,William, corr SSKK, 1988.

5.c4 Bd6

6.Ba3 A) 6...e5 7.Bd6 (7.cd5 Nd5 8.Bc4 Nb6 9.Be2 Ba3 10.Na3 0–0 11.d4 Nd5–/+) 7...Qd6 8.d4 dc4 9.Bc4 Be6 10.Be6 Qe6 11.Nc3 ed4+=; B) 6...0–0 7.Bd6 (7.bc6 Nc6 8.Bd6 Qd6 9.d4 e5 10.cd5 Nd5 11.Nf3 ed4–/+) 7...Qd6 8.Nc3 e5 9.cd5 Nd5 10.Nf3 Bg4 11.Ne4 Qb4+=.

6.a4 a6 7.Nf3 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c5 11.0–0 Nbd7 12.d4 0–0 13.Nbd2 (13.dc5 Bc5 14.Qc2 b6=) 13...Nb6 (13...cd4 14.Bd4 e5 15.Bc3=) 14.Bd3+= White is in command 14...cd4 (14...Nbd5 15.Qe2+=) 15.Bd4 Nbd5 (15...Nbd7 16.Nc4 Bc5 17.Qa1+=) 16.Nc4+/– h6 (16...Be7!?+/–) 17.Nd6+– Qd6 18.e4 Nf4 19.e5 Qa3 20.ef6 Qd3 21.Qd3 Nd3 22.fg7 Re8 (22...Rd8 23.b6+/–) 23.Ne5 (23.Rd1 e5 24.Rd3 ed4 25.Rd4 Kg7 26.h3+/–) 23...Nf4 (better is 23...Rd8!? 24.Bc3 Nf4+/–) 24.Ng4+– Ne2 25.Kh1 Nd4 26.Nf6 Kg7 27.Ne8 Kf8 28.Nd6 Bd7 29.Nb7 Nb5 30.Rd1 Bc6 31.Nc5 Bd5 32.Rd3 Kg7 33.Nd7 Be4 34.Rg3 Kh8 35.Nf6 Bg6 36.h4 Kg7 37.Nd7 h5 38.Ne5 Nd4 39.Ng6 fg6 40.Re3 Nf5 41.Re4 Kf6 42.g3 e5 43.Ra4 (43.Ra4 Nd4 44.Kg2+–) 1–0. Wolf – Hentze, corr DDR–cp FD'84/??/212, 1984.

6.Nc3 A) 6...dc4 7.Bc4 (7.Rc1 a6 8.bc6 Nc6 9.Bc4 0–0 10.a4 Bd7 11.Nf3 Rc8+=) 7...0–0 8.Nf3 a6 9.a4 b6 10.0–0 Qc7 11.Qe2 Bb7=; B) 6...0–0 7.Nf3 (7.d4 dc4 8.Bc4 Bd7 9.Nge2 cb5 10.Bb5 Bb5 11.Nb5 Qa5+=) 7...dc4 8.Bc4 a6 9.a4 b6 10.0–0 Qc7 11.Qe2 Rd8=.

6.d4 A) 6...Ne4 7.Qb3 (7.Nc3 Qa5 8.Qb3 e5 9.f3 Nf6 10.c5 Be7 11.Bd3 ed4=) 7...Qa5 8.Nc3 e5 9.f3 Nf6 10.c5 Be7 11.Bd3 ed4=; B) 6...dc4 7.Bc4 (7.bc6 b5 8.a4 Qa5 9.Nc3 Bb4 10.Qc2 Nc6 11.ab5 Qb5–/+) 7...Bd7 8.Nc3 0–0 9.Nge2 cb5 10.Bb5 Bb5 11.Nb5 Qa5+=.

6.cd5 ed5 7.Nf3 0–0 +=.

6.Qf3 e5 7.Nc3 Bg4 8.Qg3 h5 9.f3 e4 (9...h4 10.Qf2 Be6 11.cd5 cd5 12.Nge2+=) 10.Qf2 ef3 11.gf3 Be6 12.cd5 cd5 13.d4 (13.Nge2 Nbd7=) 13...0–0 14.Bg2 Nbd7 15.Nge2 Nb6 16.0–0 Nc4 17.Ng3?? (better is 17.Bc1+=) 17...h4–+ (17...Nb2?! 18.Qb2 h4 19.Nge2+=) 18.Nh1 h3 19.Bh3 Bh3 20.Rfe1 Nb2 (20...Qa5!? 21.e4–+) 21.Qb2 Qa5 22.Nf2 Bb4 23.Rec1 Rac8 24.Nh3 (24.Nb1 Rc1 25.Qc1 Rc8–+) 24...Bc3 (worse is 24...Rc3 25.Qf2–+) 25.Rc3 Rc3 26.Re1 Rb3! (26...Rb3 27.Qf2 Ra3–+) 0–1. Baer,Cy (1895) – Tiedemann,Joern (2125), RSS5E easy–33, 2007.

6.Nf3 a6 7.a4 ab5 8.ab5 Ra1 9.Ba1 Nbd7 (9...0–0 10.Qc2+=) 10.Be2 Qc7 11.0–0 0–0 12.h3 Nb6 (12...dc4 13.Bc4 b6 14.bc6 Qc6 15.Qe2=) 13.bc6 bc6 (13...dc4 14.Bf6 gf6 15.cb7 Bb7 16.Nc3=) 14.cd5 (14.Bf6 gf6 15.Qc2 dc4 16.Bc4 Bb7=) 14...cd5 (14...Nbd5 15.Nc3=) 15.Nc3 (15.Bf6 gf6 16.Nd4 Bd7=) 15...Bd7+= 16.d3 Ra8 17.Qd2 Bb4 (17...e5 18.d4 e4 19.Ne5+=) 18.Qb2 (18.Nb5 Qc5 (worse is 18...Bb5 19.Qb4 Bd7 20.Be5+/–) 19.Bc3 Bc3 20.Nc3 Rc8=) 18...Ba3 19.Qb3 Bd6 20.Rb1 Qa7 (20...e5!?+=) 21.Nb5= Bb5 22.Qb5 (22.Bf6 Nd7 23.Bg7 Kg7 24.Qc3 Nf6 25.Rb5 Qa6+/–) 22...Nbd7 23.Bd4 Qa2 (better is 23...Qc7!? 24.Qb2 e5+=) 24.Ra1+/– Qa1 25.Ba1 Ra1 26.Bf1 Ra8?? (26...Kf8 27.Qb2 Ra7 28.d4+/–) 27.Nd4 (better is 27.Qc6 Ra1 28.Qd6+–) 27...Rb8 (27...Ra2 28.Qb1 Ra4 29.Qc2+/–) 28.Qc6 Bc5 29.Nf3 h6 30.d4 Bf8 31.g4 g5 32.Kg2 Rb6 33.Qc8 Rb8 34.Qc2 Bd6 35.Ba6 Rb6 36.Bd3 Kg7 37.Nd2 Ne8 38.Qa4 Ndf6 39.Bb5 (39.Kf3 h5+/–) 39...Nc7 40.Bf1 Nce8 41.Nb3 Rb8 (41...Ne4 42.Nc5 (42.Qe8?! Rb3 43.Qc6 Rb2=) 42...N8f6 43.Ne6 Kg6 44.Nc5+–) 42.Nc5+– Rc8 43.Qa6 Rc7 44.Qb6 Bc5 45.dc5 Nd7 46.Qb5 Nef6 (46...e5 47.c6 Ndf6 48.Qc5+–) 47.c6 Ne5 (47...Nf8 48.Qb6 Ne8 49.Qb8+–) 48.Qb2 (better is 48.Qb8 Ne8 49.Qe8 Nc6 50.Bb5+–) 48...Ng6 (48...Nc6?? 49.Qb6 Rd7 50.Qc6+–) 49.Bb5 Ne7 (better is 49...e5+–) 50.Qe5 Rc8 51.Qd6 Kf8 (51...Re8 52.c7 Nc8 53.Qd8+–) 52.c7 Ne8 53.Be8 (53.Qd8 Rc7 54.Qe8 (54.Be8?! Rc8 55.Qd7 Re8+=) 54...Kg7 55.Qb8+–) 53...Ke8 54.f3 Ra8 55.Kg3 Rc8 56.h4 Ra8 (56...gh4 57.Kh4 d4 58.e4+–) 57.f4 (57.Qb6 Rc8 58.Qb5 Kf8+–) 57...gf4 58.Kf4 (better is 58.Qf4 f5 59.Qh6+–) 58...Ra4?? (58...Ng6 59.Kf3 Rc8+–) 59.Ke5 Re4 (59...Ra8 60.Kf6 Ng8 61.Kg7 Ne7+–) 60.Kf6 Ng8 61.Kg7 Rg4 62.Kh8 Ne7 (62...f5 63.c8Q Kf7 64.Qce6) 63.Qd8 1–0. zabazaba – focara (1665), gameknot.com, 2013.

6.Nf3 dc4 7.Bc4 (7.bc6 Nc6 8.Bc4 0–0 9.d4 a6 10.0–0 b5 11.Be2 Bb7+=) 7...a6 8.a4 0–0 9.0–0 cb5 10.ab5 Nbd7 11.d4 Nb6 =. algernon (2275) – davidloza (2410), net–chess.com, 2013.

6.Nf3 Qc7 7.d4 (7.Bf6 gf6 8.cd5 cd5+=) 7...Nbd7 8.a4 dc4 9.Bc4 0–0 10.0–0 e5 11.h3 (11.Ne5 Ne5 12.de5 Be5 13.Be5 Qe5=) 11...h6 (11...e4!? 12.Nfd2 cb5 13.ab5 Nb6=) 12.Nc3 Re8 13.Qb3 Nb6 14.Rac1 (14.de5!? Be5 15.Ne5 Re5 16.Ne2+=) 14...Nc4+= 15.Qc4 e4 16.Nd2 Be6 17.Qe2 Bb4 (17...Bd5!?=) 18.Nce4+= Ne4 19.Ne4 Bh3 20.Qf3 (20.gh3 Kh7) 20...Bf8?? (better is 20...Bd7+=) 21.gh3+– (21.Qh3?! Re4 22.Rc2 Qa5+=) 21...Re6 (21...Qb6 22.Qg4 cb5 23.ab5+–) 22.d5 Rg6 23.Kh1 Qa5 24.dc6 bc6 25.bc6 Rc8 26.Rg1 Rg1 27.Rg1 Qa4 28.Nf6 Kh8 29.Qf4 Qc6?? 30.e4+– g6 31.Nd5 Kg8 32.Qe5 f6 33.Rg6 (33.Rg6 Kh8 34.Rf6 Qc1 35.Kh2 Qh1 36.Kh1 Rc1 37.Bc1 Kg8 38.Qe6 Kh7 39.Rf8 a5 40.Qh6#) 1–0. Seifert,J – Fleck,Dankwart, corr DDR–H–261, 1987.

6.Nf3 Nbd7 7.d4 cb5 8.cb5 Ne4 9.Nbd2 Bb4 10.a3 Ba5 11.Rc1 (11.Be2) 11...Ndf6 12.Be2? (12.Bd3) 12...Nd2 13.Nd2 Ne4 0–1. Merkl – Welti, corr SOK–90–62.

6.a4 0–0

7.Nf3 a6 8.Qb3 ab5 9.ab5 Ra1 10.Ba1 Bd7 11.Be2 dc4 12.Bc4 cb5 13.Bb5 Nc6 14.0–0 Qe7 (14...Qb6!? 15.Bf6 Na5=) 15.Bf6+= Qf6 16.d4 Qe7 17.Qa4 h6 18.Nbd2 Rd8 19.Ne4 Bc7 20.h3 Nb8 21.Rb1 Bb5 22.Qb5 b6 23.Rc1 Rd5 24.Qc4 Bd6?? (better is 24...Rd7+/–) 25.Qc8+– (25.Nd6?! Rd6 26.Qb4 Qf8+–) 25...Kh7 26.Nd6 Qd6 27.e4 Rb5 28.e5 Qa3 29.Rc7 Na6 (29...Nc6 30.Rc6 Rb1 31.Kh2 Rf1+–) 30.Rf7 Rb1 31.Kh2 Qd3 (31...Rc1 32.Qa8 Rc3 33.Qe4 Kg8+–) 32.Rf8 Nb4 (32...Qf3 33.gf3 Nc7 34.Qc7 Rh1 35.Kh1 Kg6 36.Qf7 Kg5 37.Qg7 Kh4 38.Qh6) 33.Rh8 Kg6 34.Qe6 1–0. pierred (2845) – danielro (2300), net–chess.com, 2015.

7.Nf3 dc4 8.Bc4 cb5 9.ab5 =.

7.Nf3 Nbd7 8.Qc2 e5 9.d4 e4 10.Nfd2 (10.bc6 bc6 11.Ne5 Qc7 12.Nd7 Qd7=) 10...Ne8 (10...Ng4 11.Be2 Qh4 12.g3=) 11.c5 Bc7 12.Bc3 (12.Be2 Qh4=) 12...f5 13.g3 Ndf6 (13...Qg5 14.h4 Qd8 15.a5+=) 14.a5 (14.Be2 Be6=) 14...cb5 15.Bb5 Bd7 (15...Ng4 16.Qb3=) 16.Qb3 (16.Be2 Qe7=) 16...Rb8 (16...Bb5 17.Qb5 Rb8 18.0–0+=) 17.Bd7 (17.Be2 Be6=) 17...Qd7+= (worse is 17...Nd7 18.Qd5 Rf7 19.0–0+/–) 18.Bb4 (18.0–0 Qe6+=) 18...Rf7 (18...Ng4 19.0–0+=) 19.Nc3= b6 (19...Bd8 20.0–0=) 20.cb6 ab6 21.a6 Bd6 (21...Ra8 22.f3=) 22.0–0 (22.Nd5 Nd5 23.Qd5 Bb4+/–) 22...Ra8 23.Rfb1 (23.Bd6 Qd6 24.Rfb1 Rc8+=) 23...Nc7? (better is 23...Bb8!?=) 24.Bd6+/– Qd6 25.Qb6 Qb6 (25...Qd7!?+/–) 26.Rb6+– Rff8 27.Nb3 Rfb8 28.Rb8 Rb8 29.Nc5 Nfe8 30.N3a4 Nd6 31.a7 Rd8 32.Nb6 Na8 33.Nd5 (33.Nd5 Kf7 34.Rb1+–; 33.Ne6!? Nb6 34.Nd8 Na8+–) 1–0. Iosif,Daniela – Geiger,Michael, Giessen op, 1993.

7.Nf3 Nbd7 8.d4 c5 +=.

7.Nf3 Nbd7 8.Be2 e5 9.0–0 e4–/+ 10.Nd4 c5 11.Nb3 Ne5 (11...dc4!? 12.Bc4 Ne5–/+) 12.cd5+= Nd5 13.Nc3 (13.Nc5 Nf6= (13...Bc5?! 14.Be5 Re8 15.Bg3+=)) 13...Nf6 14.Qc2 Re8 15.Ba3 (15.Ne4? Ne4 16.Qe4 Ng4 17.Qg4 Bg4 18.Bg4 Re4–+) 15...b6 16.Ne4 Ne4 17.Qe4 Ng4 (better is 17...Be6!? 18.Qc2 Ng6+=) 18.Qa8+/– Bh2 19.Kh1 Qh4 20.Bg4 Bg3?? (better is 20...Bb8 21.Bh3 Bh3+/–) 21.Bh3 Bd7 (21...Be5 22.d4 Rd8 23.Qf3+–) 22.Qa7 Bh3 23.fg3 (23.gh3?? Qh3 24.Kg1 Qh2) 23...Qg3 (23...Qh5 24.Nc1 Qd5+–) 24.Qf7 1–0. Fritz11 – jumbo, casual, 2013.

6.a4 Nbd7

7.Nf3 0–0 8.Qc2 e5 9.Be2 e4 10.Nd4 Ne5 (10...dc4 11.bc6 Ne5 12.cb7 Bb7 13.Bc4–/+) 11.bc6 bc6 12.c5 Bc7 13.0–0 Rb8 14.g3 (14.f4 Nd3 15.Bc3 Nc5 16.Nc6 Qd6 17.Nb8 Nd3 18.Bd3 ed3+–) 14...Bh3–/+ 15.Re1 Qd7 16.f3 ef3 17.Nf3 Bf5 18.Qc3 Rfe8 19.Ne5 (better is 19.Nd4!?–/+) 19...Be5–+ 20.d4 Ne4 21.Qb3?? (better is 21.Qc1 Qb7 22.Bc3–/+) 21…Rb3 (21...Rb3 22.de5 Rb2–+) 0–1. Loewe – De Visser,Arnold, corr SOK–89–42, 1989.

7.Nf3 0–0 8.Be2 dc4 (8...cb5 9.cb5 e5 10.0–0+=) 9.Bc4 (9.Na3 cb5 10.ab5 c3 11.Bc3 e5=) 9...cb5 (9...Nb6 10.Be2=) 10.ab5 Qc7 (10...Nb6 11.d3+=) 11.Be2 (11.d3 e5=) 11...e5+= 12.d3 Nb6 13.Nbd2 (13.0–0 Qe7=) 13...Bd7 (13...Rd8 14.0–0+=) 14.Rc1 Qb8 15.d4 ed4 (15...e4!? 16.Ne5 Be6+=) 16.Bd4+= (worse is 16.ed4 Qe8 17.Qb3 Nbd5+=) 16...Nbd5 17.0–0 Re8 (17...Qe8 18.Qb3+=) 18.Qb3 (18.Bc4 Bg4 19.h3 Be6+/–) 18...a5 (18...Be6 19.Nc4+=) 19.Nc4 (19.Qa4 Bg4 20.h3 Be6+=) 19...b6 (19...a4 20.Qa2=) 20.Nd6 (20.Qa4 Rc8+=) 20...Qd6 21.Nd2 (21.Qa4 Qb4 22.Qb4 ab4+=) 21...Ra7 (21...a4 22.Qa2=) 22.Nc4 (22.Qa4 Rc7+=) 22...Qb8 (22...Qe6 23.Qa4+=) 23.Qb2 Re6 24.Bf3 (24.Ne5 Qa8+/–) 24...Nb4 Black gets in control 25.Be5 Qf8 26.Qd2 Bb5= 27.Bd6 Qc8 28.Bb4 Bc4+= 29.Bg4 ab4–/+ 30.Be6 fe6 31.Qb4 Rc7 32.Rfd1 Nd5 33.Qd6 Rc6 34.Qe5 b5 35.Ra1 Be2 36.Re1 Bd3 37.Red1 Bc2 38.Rd2 Ba4–+ 39.h3 Rc1 40.Kh2 Ra1 41.Qa1 Qc3 42.Qa2 Qc7 43.Kg1 Qc4 44.Qa3 h6 45.Rd4 Qc6 46.Qd3 Bc2 47.Qa3 b4 48.Rb4 Nb4 49.Qb4 Qe4 50.Qc3 Bd3 51.Qc5 Qc4 52.Qb6 Kh7 53.Qa7 Qc1 (53...Kg6 54.Qe7–+) ½–½. Rau,Johann – Hesselbarth,Karlheinz, corr DDR–ch, 1977.

6.a4 e5

7.c5 Bc5 8.Be5 +=.

7.cd5 Nd5 8.e4 +=.

6.Nf3 0–0

7.a4 Nbd7 8.Be2 e5 9.0–0 e4 10.Nd4 c5 11.Nb3 dc4 12.Bc4 Ne5 13.Be2 Nfg4 14.g3 Qg5 15.Nc3 Qh6 16.h4 f5 17.Nd5 Be6 18.Nf4 Bc4 19.Rc1 Be2 20.Qe2 Nf3 21.Kg2 g5 22.Nh3 gh4 23.Nc5 Rf7 24.Rh1 Rc8 25.Ne4 Rc1 26.Nd6 Rh1 27.Nf7 Rh2 28.Kf3 Qh5 29.Kf4 Qf7 30.Qd3 h6 31.Qd8 Kh7 32.Qh4 Nf2 33.Ng5 Kg6 34.Qh2 Qd5 35.e4 fe4 0–1. Fernandez – Pommerel, corr 3GMM½–01 1997–99.

7.Qc2 cb5 8.c5 Qc7 9.Bf6 gf6 10.d4 Be7 11.Bb5 b6 +=.

7.Qc2 dc4 8.Bc4 cb5 9.Bb5 Na6 10.Nc3 Nb4 11.Qb1 a6 12.Be2 h6 13.a3 Nc6 14.Qc2 Bd7 15.0–0 b5 16.Ne4 Ne4 17.Qe4 Qe7 18.Nd4 Nd4 19.Qd4 e5 20.Qb6 a5 21.Qb7 Rfb8 ½–½. Chirpii,A – Konotop,Sergei, 1998.

7.Nc3 dc4 8.Bc4 a6 9.a4 b6 10.0–0 Bb7 11.Qe2 Qc7 =.

7.Be2 dc4 8.bc6 Nc6 9.Bc4 e5 10.0–0 e4 11.Nd4 Nd4 12.Bd4 Bh2 13.Kh1 Ng4 14.g3 Qd6 15.Qe2 Qh6 –+ 16.Kg2 Ne3! 17.fe3 Qh3 18.Kh1 Bg3 19.Kg1 Bg4 20.Qg2 Qh4 21.Qh1 Bh3 22.Nc3 Qg4 23.Be2 Bf2 0–1. Dietert – Guhl, 1973.

5.c4 Nbd7

6.a4 Qa5 7.Bc3 Bb4 8.Qb3 Bc3 9.Qc3 Qc3 10.Nc3 cb5 11.cd5 b4 12.de6 bc3 13.ed7 Bd7 14.dc3 Ne4 15.c4 Nc5 16.a5 0–0 17.Nf3 f6 18.Be2 Nb3 19.Ra3 Nc5 20.0–0 Ne4 21.Rd1 Rad8 22.Nd4 a6 23.Bf3 Nc5 24.Bd5 Kh8 25.Rb1 Rb8 26.Kf1 Bg4 27.h3 Bh5 28.g4 Bf7 29.Bf7 Rf7 30.Ke2 g6 31.Ra2 Rc8 32.Rc1 Re7 33.Rb2 Rd8 34.Rd1 Rd6 35.Nb3 Rd1 36.Kd1 Nd3 37.Rc2 Rd7 38.Ke2 Nb4 39.Rd2 Rd2 40.Kd2 Kg7 41.Nc5 b6 42.ab6 a5 43.b7 Nc6 44.Nd7 a4 45.Kc3 a3 46.b8Q Nb8 47.Nb8 Kf7 48.Kb3 Ke6 49.f4 g5 50.Ka3 f5 51.Nc6 h5 52.Nd4 Kf6 53.Nf5 hg4 54.hg4 1–0. Ruhle,Ernst Albrecht (1685) – Klee,Charlotte (2560), Seefeld, 1993.

6.Nc3 Nb6 7.cd5 cd5 8.Nf3 Nc4 (8...Bd6!?=) 9.Bc4+= dc4 10.Qa4 Qc7 (10...Bd6 11.Qc4 e5 12.Ne4 Ne4 13.Qe4+/–) 11.b6+/– Qc6 12.Nb5 (better is 12.Qc6 bc6 13.ba7+=) 12...Nd5?? (better is 12...Kd8+=) 13.Ne5+– Nb6 14.Nc7 Kd8 15.Nc6 Kc7 (15...bc6 16.Qc6 Bd7 17.Qb7+– (17.Na8?! Bc6 18.Nb6 ab6+/–)) 16.Be5 Bd6 (16...Kd7 17.Nb8 Kd8 18.Qa5+–) 17.Bd6 (better is 17.Qa3! Be5 18.Ne5+–) 17...Kd6 18.Qd1 (18.Qb4 Kc6 19.Qe7 Bd7+–) 18...bc6 19.0–0 Ba6 (19...e5 20.d4 cd3 21.Qd3 Ke7 22.Qa3 Kf6 23.f4+–) 20.Re1 (20.Qg4 Ke7+–) 20...Ke7 21.e4 (21.Qg4 Kf8+–) 21...Rhd8 22.Re3 (22.Qh5 h6+–) 22...g6 (22...Kf8 23.Qh5 Kg8 24.a4+–) 23.Qc2 (23.Qc1 Bb5+–) 23...Rd6 (23...Rd3 24.Re2+–) 24.Qc3 c5 25.Rf3 Nd7 26.Rc1 f6 27.Qa5 Rd8 28.h3 Ne5 29.Ra3 Rc8 30.d3?? Nd3 31.Rd1 Rcc6 ½–½. Dopper,Johan – Bloom, 1994.

6.Nf3 Bb4 7.Be2 0–0 8.0–0 h6 9.Ne5 Ne5 10.Be5 Bd7 11.Bc3 Bc3 12.Nc3 Qc7 13.bc6 Bc6 14.cd5 Nd5 15.Nd5 Bd5 16.Bf3 Bf3 17.Qf3 Rab8 18.Rfc1 Qd7 19.d4 Qa4 20.g3 b6 21.Qe2 Rbc8 22.Qb2 Rc1 23.Rc1 Qd7 24.Qe2 Rc8 25.Qd2 Rc1 26.Qc1 a5 27.Qc3 Kf8 28.Kf1 g6 29.f3 Qd5 30.a4? Qf3–+ 31.Kg1 Qd1 32.Kg2 Qa4 33.Qc8 Kg7 34.Kf3 Qd1 0–1. valpa – JuliusCaesar, HCL–C2295 playchess.de, 2003.

6.Nf3 cb5 7.cb5 b6 8.Be2 Bb7 9.0–0 Bd6 10.d4 0–0 11.Nc3 Rc8 (11...Qe7 12.Qa4=) 12.Rc1+= Qe7 13.Qa4 Bb8 (13...Ra8 14.Bd3+=) 14.Ba3 (14.Rc2 Ne4+/–) 14...Bd6+= 15.Bd6 Qd6 16.Qa7 (16.Bd3!?+/–) 16...Rc7= 17.Qa4 Ra8 (17...Rfc8!? 18.Qb3 Ne4 19.Ne4 de4 20.Rc7 Qc7=) 18.Qb3+= Ra3 (18...Qa3 19.Bd3+/–) 19.Qb2+/– Rc8 (19...Ra8 20.Rc2+/–) 20.Ne5! Rca8 (20...Ne5 21.de5 Double attack) 21.Nd7 (21.Nc6 Rc8+/–) 21...Nd7 22.Rc2 g6 23.Rb1 Nf6 24.Qb4?? (better is 24.Bf3+/–) 24...Qb4–+ 25.Rb4 Ne4?? 26.Ne4+= de4 27.Rbc4 Ra2= 28.g3 Rc2 29.Rc2 Rc8 30.Rc4 Kf8 31.Kg2 Ke7 32.Kh3 Rc4+= 33.Bc4 Kd6 34.Kg4 f6–/+ 35.h4? e5 36.Kh3?? ed4–+ 37.ed4 Bd5 38.Be2 Be6 39.g4 Kd5 40.Kg3 Kd4 41.Kf4 Bc4 42.Bc4 Kc4 43.Ke4 Kb5 44.f4 Kc4 45.h5 b5 46.hg6 hg6 47.g5 fg5 48.fg5 (48.f5 gf5 49.Ke5 b4 50.Ke6 b3 51.Kf6 f4 52.Kg5 f3 53.Kf6 b2 54.Ke5 b1Q 55.Kf4 f2 56.Ke5 Qg6 57.Kf4 Kd4 58.Kf3 f1Q#) 0–1. Weigel,Hans Juergen (2010) – Fleischer,Martin (1900), GER–chT Seniors, 2005.

6.Nf3 dc4 7.bc6 (7.Bc4 Nb6 A) 8.Bf1 Bd7 (8...Bd6 9.Nc3 0–0 10.bc6 bc6 11.Rb1 Rb8 12.Bd3 Nbd7; 8...Nbd5 9.Nc3 Bd6 10.Nd5 cd5 11.Bd3 0–0 12.Rc1 Qe7) 9.Nc3 Bd6 10.bc6 Bc6 11.Nd4 0–0 12.Nc6 bc6; B) 8.Be2 cb5 9.Bb5 Bd7 10.Nc3 Bd6 11.0–0 0–0 12.Rc1 Rc8) 7...bc6 8.Na3 (8.Bc4 Rb8 (8...Bd6 9.Nc3 0–0 10.0–0 Rb8 11.Rb1 Qa5 12.Qe2 Rd8; 8...Nb6 9.Be2 Bd6 10.Nc3 Rb8 11.Rb1 0–0 12.0–0 Nbd5) 9.Qc2+= Qa5 10.0–0 Ba6 11.Bc3 Bb4 12.Ba6 Qa6; 8.Qc2 Nb6 (8...Nd5 9.Bc4 Nb4 10.Qc1 Nb6 11.Be2 Nd3 12.Bd3 Qd3) 9.Bc4 Nc4 10.Qc4 Rb8 11.Qc6 Bd7 12.Qc2 Qc8) 8...Nb6 (better is 8...Ba3!? 9.Ba3 Qa5= 10.Bb2 Ba6 11.Qc2 Qd5 12.Be2 Rb8; 8...c3 9.dc3 Be7 10.Nc4 0–0 11.Qc2 Qc7 12.Be2 Nc5) 9.Nc4+/– Nc4 10.Bc4 Be7 (10...Rb8 11.Qc2 Bd6 12.Rb1 0–0) 11.Bf6 (11.Qc2!?+/– 0–0 12.0–0 Rb8; 11.0–0 0–0 12.Qc2 Rb8) 11...Bf6+= 12.Be2 (12.Rb1 0–0) ½–½. Quabach,Juergen – Lenzen,Josef, Cologne CC Christmas op, 1994.

6.Nf3 Bd6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.c4 Nbd7 6.Nf3 c6).

6.a4 a5

7.Nf3 Bd6 8.Be2 e5 9.d4 e4 10.Nfd2 0–0 11.c5 Bb8 12.Nc3 Ne8 13.0–0 f5 14.f4 ef3 15.Nf3 Qe7 16.Qd3 g6 17.Rae1 Nef6 18.Bd1 Ng4 The backward pawn on e3 becomes a target 19.h3 Ngf6 20.Ne2 Ne4 21.Bb3 g5 22.Nh2 Ndf6 23.b6 (23.Bc2 Be6=) 23...Ng3 (23...g4!? 24.Nf4 Ng3+=) 24.Ng3= Bg3 25.Re2 Ne4 26.Rf3 Bh2 (26...Re8!?=) 27.Kh2+= Be6 28.Bc2 Rf6 29.Qd1 g4 30.Rf4 Raf8 31.Be4 (31.Qe1!?+=) 31...fe4= 32.Ref2 Rf4 33.Rf4 Rf4 34.ef4 Qh4 35.Qf1 e3 36.g3 e2 37.Qg2 (37.gh4?? ef1Q 38.hg4 Bg4 39.f5 Qf2 40.Kh1 Bf3) 37...Qh3 38.Qh3 e1Q 39.Qh6 Qf2 (39...Qd2 40.Kg1 Qd1 41.Kg2 Qc2 42.Kg1 Qb1 43.Bc1 Qc1 44.Kg2 Qc2 45.Kg1 Qb1 46.Kh2–+) 40.Kh1 Qf3 41.Kh2 Qe2 42.Kg1 Qd1 43.Kh2 Qc2 44.Kg1 Qb1 (44...Qb1 45.Kg2 Bf5 (worse is 45...Qb2 46.Kf1 Qb1 47.Kg2–+) 46.Qg5 Kf7 47.Qh5 Bg6 48.Qg4 Be4 (48...Qb2 49.Kh3 Qd4 50.Qc8 Qc5 51.Qb7 Kf8 52.Qc8 Kg7 53.Qc7 Kh6 54.b7=) 49.Kf2 Qb2 50.Ke3 Qc3 51.Ke2 Bd3 52.Kd1 Qd4 53.Qd7 Kf6 54.Qd6 Kf5 55.Qe5 Qe5 56.fe5 Ke5–+) 0–1. Remetean,Vasile (2115) – Bogdan,Dan (2450), Zuzmara op Aggtelek, 2004.

7.Nf3 Be7 8.Be2 0–0 9.d3 Re8 10.Nbd2 Nf8 (10...dc4 11.dc4 Qc7 12.0–0=) 11.Ne5 (11.0–0 Ng6+=) 11...Qc7 (11...dc4 12.dc4 N8d7 13.0–0=) 12.f4 Bd6 13.Rc1 N8d7 14.Nd7 Bd7 (14...Nd7 15.0–0+=) 15.g4 (15.c5 Be7 16.b6 Qc8+/–) 15...Rf8 (15...dc4 16.dc4 Bb4 17.Qc2+=) 16.g5 Ne8 17.c5 Bf4 (17...Be7 18.b6 Qd8 19.Nf3+=) 18.ef4 (18.b6!? Bg3 19.Kf1+–) 18...Qf4+/– 19.Nf3 cb5 20.ab5 Bb5 21.Qb3 Bc6 22.Qc3 Qb4 (22...a4 23.Ra1+=) 23.Qb4+/– ab4 24.Ra1 (24.Rb1 Ra4+/–) 24...Nc7 25.0–0 (25.Rg1 Ra1 26.Ba1 Rc8+/–) 25...Ra1 26.Ra1 Ra8 (26...f6 27.d4+=) 27.Ra8 Na8 28.Nd4 Nc7 (28...Ba4+/–) 29.Nc6 (better is 29.Nc2!?+/–) 29...bc6+= 30.d4 (30.Be5 Nb5 31.Bd1 Nc3 32.Bc3 bc3+=) 30...f6 (30...e5 31.Bg4 ed4 32.Bd4=) 31.h4 (31.Bd1 Nb5+=) 31...fg5 32.hg5 h6 (32...e5!?=) 33.gh6+= gh6 34.Kg2 (34.Bc1 e5 35.de5 Ne6 36.Bh6 Nc5+=) 34...Kg7 (34...e5 35.Bd1 ed4 36.Ba4+= (worse is 36.Bd4 Ne6 37.Bf2 Kf7=)) 35.Kg3 (35.Bd1 Nb5 36.Ba4 Nc3 37.Bc6 Kf8+–) 35...Kf6 (35...e5!?=) 36.Bc1+/– Nb5? (better is 36...b3 37.Kf4 e5 38.de5 Kg6+/–) 37.Bb5+– cb5 38.Bh6 Ke7 39.Bc1 Kd7 40.Kf4 Ke7 41.Ke5 b3 (41...Kd7 42.Bb2 b3+–) 42.c6 Kd8 (42...Ke8 43.Ke6 Kd8 44.Kd5 Ke7+–) 43.Ke6 Kc7 44.Kd5 b4 45.Kc5 b2 46.Bb2 b3 (46...Kb8 47.d5 Ka7 48.d6 Ka6 49.d7 Ka7 50.Kb5 Kb8 51.d8Q Ka7 52.Bd4) 47.d5 Kd8 (47...Kb8 48.d6 Kc8 49.d7 Kc7 50.Be5 Kd8 51.Bf6 Kc7 52.d8Q) 48.Kd6 Kc8 (48...Ke8 49.c7 Kf7 50.c8Q Kg6 51.Qg4 Kh6 52.Qg7 Kh5 53.Bf6 b2 54.Qg5) 49.c7 1–0. Cerami,Giuseppe (1780) – Ferrante,Filippo, 5th Nicolo La Rosa op, 2007.

5.c4 Be7

6.a4 a6 7.Nc3 d4 (7...0–0 8.Nf3=+) 8.ed4= Qd4 9.Nf3 Qd8 10.Qb3 0–0 11.d4 (11.Be2 cb5 12.ab5 Nbd7=) 11...ab5 12.cb5 cb5 13.Bb5 Nc6 14.Bc6= bc6 15.0–0 Nd5 16.Ne5 Qc7 17.Rfc1+= Rb8 18.Nb5+/– Qb6 19.Rc6 Qa5 20.Rc2 Nb4 21.Rc4 f6? 22.Rc8!+/– Qb6?? 23.Rb8+– Rb8 24.Nd7 Qa6 25.Nb8 Qb6 26.Nd7 Qc6 27.Nc5 Nd5 28.Rc1 Nf4 29.Qf3 Qf3 30.gf3 Ne2 31.Kf1 Nc1 32.Bc1 e5 33.Be3 Bd8 34.de5 f5 35.Nb7 (35…f4 36.Bf4+–) 1–0. Zylla,Johannes – Seibt, BS–MK Kreisliga, 1995.

6.a4 b6 7.Nf3= c5 8.Be2 Nbd7 9.0–0 Qc7 10.d4 Bb7 11.Nbd2 0–0= 12.Qc2 a5 13.Ne5 Ne5 14.de5= Nd7 15.f4 f6 16.Bg4 f5= 17.Bf3 Rfd8 18.cd5+/– ed5 19.Qf5 Nf8 20.e6 Bd6 21.Bh5 g6+– 22.Qf6 d4 23.ed4 Qe7? 24.d5 Qf6+/– 25.Bf6 gh5 26.Ne4+– Bd5 27.Nd6?? Rd6=+ 28.f5 Ne6 29.fe6 Re6 30.Rad1 Rf8 31.Rd5 Ref6 32.Rf6 Rf6 33.Rh5 Kg7 34.Rh4 Kg6 35.g3 h6 36.Re4 Kf5=+ 37.Rf4 Ke5 38.Rg4 Kd5 39.Rg8 c4 40.g4? c3 (41.Rc8 Kd4–+) 0–1. Makowski – Czech, Rzeszow Poland, 1987.

6.Qc2 a6 7.a4 +=.

6.Qc2 Nbd7 7.Nf3= 0–0 8.bc6 (8.Nc3 cb5 9.Nb5 Nc5=) 8...bc6+= 9.cd5 cd5 10.Bb5 (10.Nc3 Bb7+=) 10...Bb7 (10...Qb6 11.Nc3+=) 11.0–0 Bd6 (11...Rc8 12.Nc3+=) 12.Rc1 Rc8 (12...Qa5 13.Nc3+=) 13.Nc3 Nb6 14.Rab1 Nc4 (14...a6 15.Be2+=) 15.Bc4 Rc4 (15...dc4 16.Nb5 Bc5 17.Na7=) 16.Ba1 (16.d3 Rc8=) 16...Qc7 (16...Qd7 17.d3 Rc7 18.Qd2+=) 17.Rb3 (17.d3 Rc6=) 17...Rc8 (17...d4 18.Nd4 Bh2 19.Kf1–/+) 18.Qb2 (18.d3 Rb4+=) 18...Ba6–/+ 19.Rb1 (19.d3 Rc6 20.Qd2 Ng4–/+) 19...Qd8 (19...Rc5 20.Re1–/+) 20.h3 (20.g3 R4c7–/+) 20...Qe7 (20...R4c7 21.Nd4–/+) 21.Nd4 Qd7 (21...R4c7 22.Ndb5 Bb5 23.Rb5+=) 22.Ncb5 (22.d3 R4c5 23.Qd2 e5+=) 22...Bb5–/+ 23.Rb5 Qc7 (23...e5 24.d3 R4c7 25.Nf3–/+) 24.g4+= Rc1 (24...Be5 25.Rb7 Qa5 26.d3 Bd4 27.ed4+=) 25.Kg2= Rb1 26.Qb1 Rb8 27.Rb8+= Qb8 28.Qb8 Bb8 29.Nc6 Nd7 30.Kf3 f6 31.e4 Kf7 32.ed5+/– ed5 33.Bd4 Ke6 34.Nb8+– Nb8 35.Ba7 Nc6 36.Bb6 Ne5 37.Ke2 Nc4 38.Bc5 Ne5 39.a4 Nc6 40.f4 f5 41.Bb6 fg4 42.hg4 g6 43.a5 Nb4 44.Kf3 Nc6?? 45.Kg3 Nb8 46.Kh4 Kf6 47.Bd4 Ke6 48.Be5 Na6 49.Kg5 h5 50.gh5 gh5 51.Kh5 Kf5 52.Kh6 d4 53.d3 Nb4 54.Kg7 Nd3 55.a6 Ne5 56.a7 Kf4 57.a8Q d3 58.Qd5 Kf5 59.Kh6 Kf4 60.Kh5 Kf5 61.Kh4 Kf4 62.Kh3 Kf5 63.Kg3 Kf6 64.Kf4 Ng6 65.Ke4 Kg7 66.Qd3 Kf6 67.Qd8 Ne7 68.Qd3 Kf7?? 69.Ke5 Ng6 70.Kf5 Ne7 71.Kg5 Ng8 72.Qd5 Kf8 73.Qe6 Ne7 74.Qd6 Ke8 75.Kf6 Ng8 76.Ke6 (76.Ke6 Nf6 77.Qe7#) 1–0. Moehring,Norbert (2165) – Sakowski,Christian (1720), Bad Woerishofen op, 2003.

6.Nc3 0–0 7.Nf3 Nbd7 8.Be2 Qc7 9.Rc1 c5 10.cd5 ed5 11.0–0 Bd6 12.h3 Re8 13.Re1 b6 14.d4 c4 15.Qc2 Nf8 16.a4 Ng6 17.Ra1 Ne7 18.Ba3 Bf5 19.Qb2 Ne4 20.Bd6 Qd6 21.Ne4 Be4 22.Rec1 Rac8 23.a5 Nf5 24.ab6 ab6 25.Ra7 Re6 26.Ng5+/– Rf6 27.Ne4 de4 28.Bg4 h5 29.Bf5 Rf5= 30.Ra4 Qe6 31.Qa2 Rb5 32.Rac4 Rc4 33.Qc4 Qc4 34.Rc4 Rb1 35.Kh2 f5 36.Rc8 Kf7 37.Rc7 Kf6 38.Rc6 Kf7 39.Kg3 g5 40.h4 g4 41.Rc2 Rb3 42.Kf4 Rb5 43.f3 ef3+= 44.gf3 Ke6 45.Rc6+/– Kd5 46.Rh6+– gf3 47.Kf3 Kc4 48.Rh5 Rd5 49.Rh8 b5 50.Ke2 b4 51.Rb8 Kc3 52.Rc8+– Kb2 53.Kd3 b3+/– 54.Kc4 Ra5 55.d5 Ka2= 56.d6 b2 57.d7 b1Q 58.d8Q Qb3 59.Kd4 Qd1 60.Kc4= Qc2 61.Kb4 Qa4 62.Kc3 Qb3 63.Kd4 Ra4 64.Ke5 Ra5 65.Qa5+– (65...Qa3 66.Rc2 Kb1 67.Qa3 Kc2 68.h5+–) 1–0. Skaug,Thorbjorn – Blomkvist,Edvin, Hostturnering, 2002.

6.cd5 cd5 7.Nf3 a6 8.a4 0–0 9.Be2 Bd7 10.0–0 ab5 11.ab5 Ra1 12.Ba1 Bb4 13.Bc3 Ba5 14.Ne5 Bc3 15.Nd7 Nbd7 16.Nc3 Ne5 17.h3 (17.d4!? Ng6 18.Bd3+=) 17...d4+= 18.Na4 d3 19.Bf3 Nf3 (19...Qd7!? 20.Nc3 Rc8+= (worse is 20...Nf3 21.Qf3 Ra8 22.Rc1=)) 20.Qf3= Qa5 21.Nc3 Nd5 (21...Qb6!?=) 22.Nd5+= ed5 23.Qd5 Qd2 24.Qb7 Qc2 25.Qc6 Rc8 26.Qc2 Rc2 27.Rd1 d2 28.Kh2 h6 29.b6 Rb2 30.g4 Kf8 31.b7! Rb7 32.Rd2 Ke7 33.Rd3 Ke6 34.f4 f5 35.Kg3 g6 36.Ra3 Kf7 37.Ra6 Kg7 38.Re6 fg4 (38...Rb3 39.gf5 gf5 40.Kh4+–) 39.Kg4 (39.hg4 Rb5+–) 39...Rf7 40.e4 White prepares f5 40...Kh7 41.h4 Kg7 42.f5 gf5 43.ef5 Kh7?? (43...Rf8 44.Rg6 Kh7 45.h5+–) 44.h5 (better is 44.f6 Rf8 45.Kh5+–) 44...Kg7 (44...Ra7 45.f6 Kg8 46.Kf5+–) 45.Rg6 Kh7 46.f6 Rf8? (better is 46...Ra7+–) 47.Kf5 (47.Kf5 Rf7 48.Rg4+–) 1–0. Hal1958 – Golfsuper, playchess.de, 2004.

6.Be2 0–0 7.f4 Nbd7 8.Nf3 Qb6 9.a4= a6 10.a5 Qd8 11.b6 Nc5 12.0–0 Nce4 13.d3 Nd6 14.c5 Nf5 15.Qc1 Ng4 16.e4 Nh4?? 17.Nh4+– Nh2 18.Kh2 Bh4 19.Qe3 f5 20.e5 Rf7 21.Nd2 Qf8 22.d4 Bd7 23.Rf3 g6 24.Rh3 Be7 25.Rh1 Rg7 26.Nf3 Kf7 27.Kg1 Qg8 28.Ng5 Bg5 29.fg5 Ke7 30.Qf4 Qf7 31.Rh6 Rh8 32.Bc1 Kd8 33.R1h3 Kc8 34.Qf1 Be8 35.Ra3 Qd7 36.Ba6 ba6 37.Qa6 Qb7 38.Qb7 Kb7 39.a6 Ka8 40.a7 Rf8 41.Kf2 Rff7 42.Bf4 Rb7 43.Ke3 Rgf7 44.Kd3 Rfe7 45.Kc3 Rg7 46.Kb4 Rge7 47.Bd2 Rf7 48.Rah3 Rg7 49.Ka5 Rbe7 50.Ka6 Rd7 51.R6h4 Rb7 52.Rf3 Rge7 53.Rhf4 Rg7 54.Rf1 Rge7 55.g4 Rf7 56.Rh1 Rg7 57.Rh6 Rge7 58.gf5 gf5 59.Rfh4 Bg6 60.Rg6! Re8 61.Rgh6 f4 62.Rh7 (62...Rf8 63.Rh8 Ra7 64.ba7 Rh8 65.Rh8#) 1–0. Junghaenel,Dieter – Assmann,Hans, GER–ch Seniors, 2001.

6.Be2 Bd7 7.a4 Qb6 8.cd5 ed5 9.a5 Qd8 10.Nc3 0–0 11.Nf3 cb5 12.Bb5 Bb5 13.Nb5 Nc6 14.a6 ba6 15.Ra6 Nb4 16.Ra3 a6 17.Nbd4 Qb8 18.Nf5 Bc5? (Better is 18...Qc7!? 19.0–0 Qd7 20.Ne7 Qe7=) 19.Bf6–/+ gf6 20.0–0 Qb5?? (Better is 20...Rc8–/+) 21.N3d4 Nd3 (21...Qf1 22.Kf1 Kh8+–) 22.Qg4 (22...Kh8 23.Qg7) 1–0. Bonetti,Shane – rofred (2000), ICC, 2002.

6.Nf3 cb5 7.cd5= Qd5 (7...b4 8.Bb5 Bd7 9.Bd7 Nbd7 10.de6 fe6 11.Bf6 Nf6 12.Qa4 Nd7 13.Nd4=) 8.Nc3 Qd8 9.Bb5 Bd7 10.0–0 0–0 11.Bd3 (11.Bc4 Nc6=) 11...h6 (11...Bc6 12.Nd4=) 12.Qc2 Bc6 13.Nd4 a6 14.Rac1 Nbd7 15.Nc6+= bc6 16.Ne4 Ne4 17.Be4+/– Nf6 18.Bc6 Rc8 19.Bf6 Bf6 20.d4 Qd6 21.Qa4 a5 22.Be4 Qb4 23.Qb4 ab4 24.g3 Be7 25.Rc6 Rc6+= 26.Bc6 Rc8 27.Rc1 Rc7 28.f4 g5 29.e4 Kg7 30.Kg2 f6 31.f5 ef5 32.ef5 Bd6 33.Kf3 Re7 34.Bd5 Rc7 35.Rc6 Rc6 36.Bc6 h5 37.Kg2 Kf7 38.Bb5 Ke7 39.Be2 g4 40.h3 gh3 41.Kh3+/– Bc7 42.Bh5 Kd6 43.Bf7 Bb6 44.d5 Be3 45.Kg4 Bg5 46.Kh5 Be3+/– 47.g4 Bg5 48.Kg6+– Ke7 49.Bg8 Bh4 50.Be6 Bg5 ½–½. Waibel,Ulrich – MacNab,Callum, compuserve, 1996.

6.Nf3 Qb6 7.a4 a5 (7...Nbd7 8.Nc3=) 8.Nc3+= 0–0 9.Be2 Nbd7 10.0–0 Re8 11.d4 dc4 12.Bc4 Nf8 13.e4 (13.Ba3 Ba3 14.Ra3 Bd7+/–) 13...Ng6 14.e5 (14.g3 c5+=) 14...Nd5+= 15.Nd5 (15.Qd2 Bb4+=) 15...cd5 (15...ed5 16.Bd3 Nf4 17.Ba3=) 16.Bd3+= Nf4 17.Ba3 Nd3 18.Qd3 Qd8 19.Rfc1 f5 20.Be7 Qe7 21.Rc5 (21.Qc3 b6+/–) 21...Qd8 (21...Bd7!?+=) 22.Rac1+/– Bd7 23.Qb3 Rc8? (23...b6 24.Rc7 Qe7 25.h4+=) 24.b6 (24.Rc8!? Bc8 25.Qa3 g5+–) 24...Rc5 (24...Rc6 25.Rc6 Bc6 26.Rc5+/–) 25.Rc5+/– (25.dc5?! Bc6+=) 25...Qa8 (25...Qe7 26.g3 Qf8 27.Ra5+–) 26.h3 (26.Rc7 Rc8 27.g3 Rc7 28.bc7 h6+–) 26...Rc8 (26...Bc6!?+/–) 27.Rc7+– Bc6 (27...Rc7 28.bc7 Qa6 29.Qc3+–) 28.Ng5 (better is 28.Qa3 Re8 29.Ng5+–) 28...Re8?? (better is 28...Rc7 29.bc7 Qc8+–) 29.Qg3 Rc8 30.Ne6 (30.Qh4 h6 31.Rg7 Kg7 32.Ne6 Kg8 33.Qe7 Rc7 34.bc7 Qf8 35.Qf8 Kh7 36.Qg7) 30...Rc7+– 31.bc7 g6 32.Qg5 Qe8 (32...Qf8 33.Nf8 b5 34.Ne6 Bb7 35.Qe7 ba4 36.Qf8) 33.Qf6 Qd7 (33...Qe6 34.Qe6 Kg7 35.c8Q Kh6 36.Qe7 Kh5 37.f4 h6 38.g4 fg4 39.hg4) 34.Qf8 1–0. Martinez De Navascues,F (1670) – Cuellar Gutierrez,R, 8th Open Ciudad Los Angeles – Memorial, 2014.

6.Nf3 Nbd7 7.cd5= cd5 8.a4 b6 (8...Bd6 9.Be2=) 9.Be2 Bb7 (9...0–0 10.0–0=) 10.Ba3 Rc8 11.0–0 0–0 (11...e5 12.Be7 Qe7 13.a5=) 12.d4 Re8 13.Nbd2 (13.Be7 Re7 14.a5 ba5+=) 13...Ba3 (13...Rc3 14.Be7 Qe7 15.a5=) 14.Ra3 Qe7 15.Qa1 Rc7 16.Rc3 Rc3 17.Qc3 Rc8 18.Qb2 Qd6 19.h3 (19.Rc1 Rc1 20.Qc1 Ne4+=) 19...Ne4 20.Rc1 Rc7 21.Bd3 h6 ½–½. Mohring,Norbert – Gross,Steffi, SEM–ch VT2 Merzig, 1996.

6.a4 0–0

7.Nc3 c5 8.Nf3= d4 (8...Nbd7 9.Qc2 (9.Bd3 Nb6 10.cd5 ed5 11.0–0 Nc4 12.Bc4 dc4 13.Ne5) 9...Bd6 10.Bd3 Nb6 11.cd5 ed5 12.0–0 Re8 13.Ra2; 8...Qd6 9.cd5 (9.Bd3 Nbd7 10.Qc2 g6 11.0–0 Ng4 12.cd5 ed5 13.h3) 9...ed5 10.d4 Nbd7 11.Be2 b6 12.0–0 Bb7 13.Qc2; 8...Bd6 9.Qb3 (9.Bd3 Nbd7 10.0–0 Nb6 11.Qe2 Nc4 12.Bc4 dc4 13.Qc4) 9...d4 10.ed4 cd4 11.Nd4 e5 12.Nf3 e4 13.Nd4) 9.Ne2 (9.ed4 cd4 10.Ne2 Qc7 11.Ned4 e5 12.Nb3 Nbd7 13.Be2) 9...d3? (better is 9...de3!? 10.fe3 (10.de3 Nbd7 11.Qc2 Qc7 12.Nf4 Bd6 13.Bd3) 10...Nbd7= 11.Qc2 Bd6 12.g3 b6 13.Bg2) 10.Ng3+/– Nbd7 11.Bd3 Nb6 (11...b6!?+/–) 12.Qc2+– g6 (12...Nbd7 13.a5+–) 13.h4 Bd6 (13...Ng4 14.a5 Nd7 15.h5+–) 14.h5 Bg3 (14...Qe7 15.Ne4 Ne4 16.hg6+–) 15.hg6 fg6 (15...hg6 16.fg3 Qe7+–) 16.Bg6 Bf2 17.Kf2 Ng4 (17...Nbd7+–) 18.Kg1 Qe7 (18...Rf3 19.Rh7 Rf6 20.Bf7 Kf8 21.Rh8 Ke7 22.Bf6 Nf6 23.Rd8 Kd8+–) 19.Bh7 Qh7 20.Qh7# 1–0. Stanley – Leo, private, 2011.

7.Nf3 =+.

6.a4 dc4

7.Bc4 cb5 8.ab5 Qb6 9.Nf3 0–0 10.0–0 Bd7 Exerts pressure on the isolated pawn 11.Qb3 a6 12.Nc3 Rd8 13.Na4 Qc7 14.Be5 Bd6 15.Bd4 (15.b6 Qc8 16.Bf6 (worse is 16.Bd6 Ba4 17.Qb4 a5 18.Qa4 Rd6=) 16...gf6 17.Rfc1+=) 15...ab5+= 16.Bb5 Rc8 (16...Bb5 17.Qb5 Qc6 18.Qc6 Nc6 19.Bf6 gf6 20.Nb6 Ra1 21.Ra1=) 17.Nb6 Ra1 18.Ra1 Re8 (18...Qc2 19.Qc2 Rc2 20.Nd7 Nbd7 21.Bc3+–) 19.Nc4 Bb5 20.Qb5 Rc8 (20...Nbd7 21.Nd6 Qd6 22.Bf6 Nf6 23.Qb7+/–) 21.Nd6+– Qd6 22.Qb7 Qc6 23.Qc6 Rc6 24.Bf6 gf6 25.Kf1 Kg7 26.Ke2 e5 27.e4 Rd6 28.Ra4 Nc6 29.Ke3 Kg6 30.g4 h5 31.gh5 Kh5 32.d4 ed4 33.Nd4 Ne5 34.Ra5 Kg6 35.Rd5 Ra6 36.Kf4 Ra2 37.Kg3 Ra3 38.f3 Nd3 39.Ne2 Ne1 40.Rf5+– Nd3 41.Nf4 Nf4 42.Rf4 Ra5 43.Rg4 Kh6 44.h4 Kh7 45.h5! Kh6 46.Rf4 Rg5 47.Rg4 Kh5 48.Rg5 fg5 49.e5 Kg6 50.Kg4 f5 51.Kg3 Kf7 52.f4 gf4 53.Kf4 Ke6 54.Ke3 Ke5 55.Kf3 f4 56.Ke2 Ke4 57.Kf2 f3 58.Ke1?? Ke3–+ (58...Ke3 59.Kd1 f2 60.Kc2 Kd4 61.Kb2 f1Q 62.Kb3 Qb1 63.Ka4 Kc4 64.Ka5 Qb5) 0–1. Fournier,Frederic – Jauneau,David, Train France (FRA), 1999.

7.Bc4 c5 8.Nf3 0–0 9.0–0 Nbd7 (9...a6 10.d4=) 10.d4 (10.a5 Bd6+=) 10...Nb6 (10...cd4 11.Qd4 Qc7 12.Rc1+=) 11.Be2 (11.Bd3 Nbd5+=) 11...Qc7 (11...Nbd5 12.dc5 Bc5 13.Nc3+=) 12.Qc2 Nbd5 13.Ba3 Re8 (13...a6 14.Rc1+= (14.Bc5 b6–+)) 14.dc5 (14.Rc1 Nd7+/–) 14...Nd7 (14...Bd7 15.Rc1+/–) 15.Rc1 (15.c6 bc6 16.Qc6 Qb8+/–) 15...Bf6 16.Nd4 (16.Ra2 Ne5+/–) 16...Be5 17.g3 (17.h3 N7f6+/–) 17...g6 (17...N7f6 18.Bf3+/–) 18.Nd2 (18.Bb2 Bf6+–) 18...Bg7 (18...Rd8 19.c6 Bd4 20.ed4+– (20.cd7? Qc2 21.Rc2 Ba1 22.dc8N Rac8–+)) 19.Ne4 (19.c6 bc6 20.Qc6 Qb8+–) 19...N7f6 20.Nd6 Rd8 21.e4 Ne7 (21...Ne8 22.Qd3 Ne7 23.Ra2+–) 22.Bb2 (22.e5 Nfd5 23.Qe4 f5 24.ef6 Nf6 25.Ne6 Qd7+–) 22...e5 (22...Nd7+–) 23.Nf3 Ne8 24.Be5 (24.Nc8 Nc8 25.a5 f6+–) 24...Be5 25.Ne5 Nd6 26.cd6 Qd6 27.Rd1 Qe5 28.Rd8 Kg7 29.Rc1 b6 30.Qc3 Qc3 31.Rc3 Bb7 32.Rd7 Be4 33.Re7 Bf5 34.Rcc7 Be6 35.Re6 a6 36.Ree7 (36.Ree7 Rf8 37.ba6+–) 1–0. Buczinski,Henryk – Seweryn,Zbigniew, Siemianowice Slaskie Poland, 1964.

6.cd5 ed5

7.Nf3 0–0 8.Be2 cb5 9.Bb5 Qb6 10.Qb3 Nc6 11.Be2 Qb3 12.ab3 Nb4 13.0–0 Ne4 14.Ba3 Re8 15.Nd4 Nc6 16.Nc6 Ba3 17.Ra3 bc6 18.Rc1 Bb7 19.Ba6 Ba6 20.Ra6 (20…d4 21.ed4+/–) 1–0. marekt – average_at_chess, ChessWorld.net, 2003.

7.Nf3 Bg4 8.Nc3 Bb4 9.Be2 0–0 10.a3 Bd6 11.0–0 Bc7 12.a4 Re8 13.h3 Bh5 14.g4 Ng4 (Better is 14...Bg6=+) 15.hg4+/– Bg4 16.Nh2 (16.bc6 Re6 17.Ng5 Qg5 18.Bg4 Qh4=+) 16...Be2 (Better is 16...Bh2!? 17.Kh2 Qh4 18.Kg1 Bh3=) 17.Ne2+/– (17.Qe2? Bh2 18.Kh1 Qh4–+) 17...Qd6 18.Ng3 Re4 (18...Nd7!?+/–) 19.f4 Re6 20.Be5 Re5 21.fe5 Qe5 22.Qf3?? (22.Rf3 Nd7+–) 22...Nd7?? (Better is 22...Qg3 23.Qg3 Bg3=+) 23.Qf7 Kh8 24.Rf3?? Rf8?? 25.Qd7 Rf3 26.Qc8 Bd8 27.Qd8 Rf8 28.Qf8# 1–0. bashful – goldenbear, Live Game Caissa's Web, 2004.

6.Nf3 0–0

7.a4 b6 8.Be2 c5 9.d4 Bb7 10.0–0 Nbd7 11.h3 Rc8 12.Nbd2 h6 13.a5 ba5 14.Qa4 dc4 15.Nc4 cd4 16.Nd4 Nc5 17.Qa5+= Nfe4? 18.Qa7 Ra8 19.Qb6 Qb6 20.Nb6 Nd2 21.Rfd1 Ncb3?? 22.Ra8 Ba8 23.Nc6 Bc5 24.Nd7 Rc8 25.Nc5 Nc5 26.Rd2 Bc6 27.bc6 Rc6 28.Rc2 Rb6 29.Bd4 Rb1 30.Kh2 Ne4 31.Bd3 (31.Bd3 Nd6 32.Ra2+–) 1–0. nizinna (1615) – kunde0003 (1670), kurnik, 2011.

7.Nc3 =+.

7.Be5 =+.

5.Nf3 cb5

6.Bb5 Nc6

7.0–0 Bd6 8.c4 dc4 9.Bc4 0–0 10.Nc3 a6 11.h3 Qc7 12.d3 b5 13.Bb3 Ne5 14.Nd4 Bb7 15.Nce2 Rac8 16.Ng3 Qb8 17.Rc1 Qa8 18.e4 Rc1 19.Qc1?? (better is 19.Bc1 Rd8 20.Be3+=) 19...Nd3–+ 20.Qc2 Nc5 (20...Nb2 21.Qb2 Be4 22.Ne4 Qe4 23.Nf3–+) 21.Ne6? (21.e5 Bg2 22.ed6 Bh3 23.f4 Nb3 24.Nb3 Bf1 25.Nf1–+) 21...Ne6 22.e5 Rc8 (22...Bg2 23.ef6 Bf1 24.Kf1 Bg3 25.fg3 Qh1 26.Kf2–+) 23.Qd1? Be5! 24.Be5 Bg2 25.Bf6 Bh3 26.Bd5–/+ Qa7 27.Re1 gf6 28.Qh5 Nf4 29.Qh4 Nd5 30.Qh3 Rc4?? 31.Re8 Kg7 32.Nh5 Kg6 33.Rg8 Kh6 34.Nf6 1–0. fjanusz52 – thichvoban62, internet, 2013.

7.0–0 Bd6 8.c4 dc4 9.Bc4 0–0 10.d4 h6 11.Nbd2 a6 12.e4 Be7 13.Re1 Na5 14.Bd3 Nc6 15.Bc2 Re8 16.h3 Nb4 17.Nb3 Nc2 18.Qc2 Bd7 19.Qd2 Bc6 20.Qd3 Bb4 21.Re2? (better is 21.Nbd2=) 21...Bb5–+ 22.Qd1 Be2 23.Qe2 Rc8 24.Nh2 Bc3 25.Rb1 Bb2 26.Rb2 b5 27.Rd2 Qc7 28.Nc5 Qc6 29.Nf1 1–0. fjanusz52 – wachmistrz1, internet, 2013.

7.a4 a6 8.Be2 b6 9.0–0 Bb7 10.d3 Be7 11.Nbd2 b5 12.ab5 ab5 13.Ra8 Ba8 14.c4 bc4 15.dc4 dc4 16.Nc4 0–0 17.Qd8 Rd8 18.Nfe5 Ne5 19.Be5 (worse is 19.Ne5 Rd2 20.Bf3 Bf3–/+ (20...Rb2?! 21.Ba8 g5 22.Rd1=)) 19...Nd5 20.Bf3 Bc6 21.Bd5 (21.Rd1 Ba4 22.Ra1 Bb5=) 21...Bd5+= (worse is 21...ed5 22.Nb6+=) 22.Nb6 Bc6 23.Rc1 Be4 (23...Ba3 24.Rb1+=) 24.f3= Bg6 25.Rc7 Bb4 26.h3 f6 27.Bd4 e5 28.Bc5 Rd1 29.Kh2 Ba5 30.Rc8 Kf7 31.Rf8 (31.Nc4 Be1+=) 31...Ke6 32.Nc4 Be1 33.Rg8?? (better is 33.Rc8=) 33...Rc1–+ 34.Rg7 Rc4 35.Re7 Kf5 36.g4 (36.Bd6 Kg5 37.Rc7 Rc7 38.Bc7 Bd2–+) 36...Kg5 37.Bd6 Rc2 38.Kg1 (38.Kh1 Kh4 39.Rc7–+) 38...Bf2 39.Kf1 Be3 40.h4 (40.Rg7 Kf4 41.Rg6 hg6–+) 40...Kh4 (40...Kf4 41.Rc7 Bd3 42.Ke1 Rf2 43.Rc4 Kg3 44.Be5 fe5 45.f4 Rf1) 41.Re6 Kg5 (41...Bd3 42.Ke1 Rc1) 42.f4 Bf4 (42...Kg4 43.Ke1 Kf3 44.Ba3 Rg2 45.fe5 Rg1) 43.Be5 Be5 44.Re5 (44.Ke1–+) 44...fe5 45.Ke1 Kg4 46.Kd1 h5 47.Ke1 Kg3 (47...h4 48.Kf1 h3 49.Ke1 h2 50.Kf1 h1Q) 48.Kf1 (48.Kd1 h4 49.Ke1 h3 50.Kf1 h2 51.Ke1 h1Q) 48...h4 49.Ke1 h3 50.Kd1 (50.Kf1 h2 51.Ke1 h1Q) 50...h2 51.Ke1 h1Q 0–1. blaugrana18 – weteral, internet, 2013.

7.d4?? Qa5 8.Nc3 Ba3 –+.

7.d4?? a6?? 8.Be2 b5 9.Nbd2 Bb4 10.a3 Bd2 11.Nd2 Na5 12.Nb3 Nc4 13.Bc1 h6 14.Nc5 0–0 15.0–0 Bd7 16.f3 Ne4?? (better is 16...Bc6=) 17.fe4+– f5 18.e5 Bc6 (18...Qc8+–) 19.Ne6 Ra7 (19...Qe7 20.Nf8 Rf8+–) 20.Nd8 Rb7 21.Nc6 Re8 22.Bc4 Rd8 23.Bb3 Rc7 24.Nb4 (better is 24.Nd8 Kh7+–) 24...Rc4 25.Bc4 Rc8 26.Bd5 Kh8 27.e6 Rc3 28.e7 g6 29.e8N Kh7 30.Na6 Rc6 31.Bc6 b4 32.Nb4 f4 33.a4 g5 34.a5 g4 35.a6 f3 36.a7 fg2 37.Kg2 g3 38.h3 h5 39.e4 h4 40.e5 1–0. captainevans – tomborell, internet, 2013.

7.Ne5 Qc7 =.

6.Bb5 Bd7

7.c4 dc4 8.Bc4 Bc6 9.d4 Nbd7 10.Nc3 Nb6 11.Bd3 Be7 (11...Rc8 12.0–0=) 12.Rc1 (12.Ne5 0–0 (< 12...Bg2 13.Rg1+/–) 13.Nc6 bc6+=) 12...0–0 13.h4 (13.0–0 Nbd5=) 13...Nbd5 14.a3 Qa5 15.Kf1 Nc3 16.Rc3 Rac8 17.Ne5 Bg2! 18.Kg2 Rc3 19.Bc3 Qc3 20.Qb1 Ba3 21.Qb7 a5 22.Kh3 Bd6–+ 23.Qb1 Be5 24.Rc1–/+ Qb4 25.Qb4 ab4 26.de5 Nd7 27.f4 Rb8 28.Kg4 b3 29.Rc7 Nf8 30.h5 b2 31.Bb1 h6 32.e4 Rb4 33.Rc8 Rd4 34.Rc2=+ Rb4 35.Rc8–+ g6 36.hg6 fg6 37.Rd8 Kf7 38.Rd1 Rb3 39.Rf1 Nd7 40.Kh4 Kg7 41.Ba2 Ra3 42.Bb1 Ra1 0–1. Kuhlmann,AEJ – Soler Montoliu,J, corr ICCF EU–GT–H–56, 1975.

7.Bd7 Qd7 8.0–0 Bd6 9.d3 Be7 10.Nbd2 0–0 11.Ne5 Qb5 12.Rb1 Qa6 13.c4 Qa2 14.Bd4 Qa6 15.Qb3 b6 16.cd5 Nd5 17.f4 (17.e4 Nf4 18.Be3 Ng6=) 17...Rc8 (17...f6 18.Nec4+=) 18.Rbc1 (18.f5 Nc6 19.fe6 fe6 20.Nc6 Rc6 21.Nc4=) 18...Bc5?? (better is 18...f6 19.Rc8 Qc8–/+) 19.Bc5+/– Rc5 20.Rc5 (20.f5!? Qc8 21.fe6 fe6 22.Ndc4+=) 20...bc5= 21.Ndc4 Nc6 (21...f6 22.e4 Nb4 23.Nf3+=) 22.Nc6 (22.Nd7!?+=) 22...Qc6+= 23.e4 (23.Ra1 Qc7+=) 23...Ne7 (23...Nb4 24.Qc3–/+) 24.Ne5 Qb6 25.Rb1 Qd8 26.Kf2 Rb8?? (better is 26...a5 27.g3 a4+=) 27.Qb8+– Nc8 28.Rb7 Qd4 29.Kf3 Qd8 (29...h5 30.Rc7 Qd3 31.Nd3 f6 32.Qc8 Kh7 33.Qd7 Kg6 34.Qg7) 30.Rc7 f6 (30...Qd3 31.Nd3 h6 32.Rc8 Kh7 33.Ne5 g6 34.Qa7 h5 35.Qf7 Kh6 36.Qg6) 31.Rc8 1–0. danielro (2300) – nerob (2055), net–chess.com, 2015.

7.Bd7 Nbd7 8.0–0 Be7 9.a3 0–0 10.Nc3 a6 11.Rb1 Rc8 12.d4 b5 13.Qd3 Qa5 14.Rfd1 Ba3 15.Ra1 b4 16.Nb1 Qa4 17.Na3 ba3 18.Ba3 Rfe8 19.Be7 Qc2 20.Qc2 Rc2 21.Bf6 Nf6 22.Ra6 Ne4 23.Rf1 h6 24.Ne5 Rb8 25.h3 Rbb2 26.Ra8 Kh7 27.Nf7 Rf2 28.Rf2 Rf2 29.Rh8 Kg6 30.Nd8 Rf6 31.Re8 Kf5 32.g4 Kg6 33.Re6 Nc3 34.Rf6 Kf6 35.Kg2 Nd1 36.Kf3 Nb2 37.h4 Nc4 38.Nb7 Ke6 39.h5 Kd7 40.Nc5 Kc6 41.Ne6 1–0. Machete99 – guest194, ICC, 2002.

7.Bd7 Nbd7 8.0–0 Be7 9.Bf6 Bf6 10.d4 Rc8 11.Nbd2 0–0 12.Rb1 Qc7 13.Qe2 Rfe8 14.Rfc1 e5 15.de5 Ne5 16.Qb5 Nf3 17.Nf3 b6 18.Qd5 Rcd8 19.Qb3 Re6 20.Rd1 Red6 21.Rd3 Rd3 22.cd3 g6 23.Rd1 a6 24.d4 Be7 25.Qd3 b5 26.d5 Qc4 27.Qc4 bc4 28.e4 Ba3 29.Rd4 c3 30.Rc4 Bb2 31.Nd4 Kf8 32.f3 Ke7 1–0. Machete99 – guest315, ICC, 2002.

7.Bd7 Nbd7 8.d4 Qb6–/+ 9.Bc1 Ne4 10.0–0 Rc8 11.Bd2?? (11.Ne1 Bd6–/+) 11...Nd2 (better is 11...Qb2 12.Bc3 Nc3 (12...Rc3?! 13.Nc3 Nc3 14.Qd3–+) 13.Nc3 Qc3–+) 12.Nbd2+= Qc6 13.Rc1 Ba3 14.Rb1 b6 15.Rb3 Qa4 16.Nb1 Bb4 17.Qd3 a5 18.Nc3 (18.a3 Bd6=) 18...Bc3 (better is 18...Qc6!? 19.Nb5 Qc2–/+) 19.Rc3= Rc3 20.Qc3 Qc4 21.Qc4 dc4 22.Rb1 0–0 23.Ne5 Ne5 24.de5 Rd8 25.f4 Rb8 26.Kf2 f6 27.Kf3 f5 (27...fe5!? 28.Rb5 ef4 29.ef4 Kf7=) 28.e4 g6 (28...b5 29.ef5 ef5 30.h3+=) 29.Ke3 (29.ef5 gf5 30.a4 Kf7+/–) 29...Kf7 (29...b5 30.ef5 gf5 31.a3+=) 30.Kd4 (30.ef5 gf5 31.a4 Kg6+/–) 30...b5 31.ef5 gf5 32.Kc5 b4 33.Kc4 Rc8 34.Kb3 Rc3 35.Ka4 Ra3+= 36.Kb5 Ra2 37.Rc1 Kg6 38.c4 b3 39.c5 b2?? 40.Rb1+– a4 41.c6 a3?? 42.c7 Ra1 43.Rb2 ab2 44.c8Q b1Q 45.Kc6 Qc2 46.Kd7 Qc8 47.Kc8–+ Ra2 48.Kd7 Kf7 49.Kd6 Rg2 50.Kc5 Rh2 51.Kd4 0–1. joaquimbage – tajbrejk, internet, 2012.

7.Bd7 Nbd7 8.Ne5 Ne5 9.Be5 Bd6 10.Bd6 Qd6 11.0–0 0–0–0 12.c3 h5 13.d4 Ng4 14.g3 f5 15.Nd2 h4 16.Nf3? (better is 16.Qb3–/+) 16...hg3–+ 17.fg3 Nh2! 18.Rf2 (18.Nh2 Qg3 Mate attack) 18...Qg3 19.Rg2 Nf3 0–1. Valpa – Mercator, playchess.de, 2004.

7.Be2 a6 8.c4 dc4 9.Bc4 b5 10.Be2 Bc6 11.0–0 Be7 12.d4 0–0 13.Nbd2 Bd5 14.h3 Nc6 15.a3 Na5 16.Bc3 Nc4 17.Nc4 bc4 18.Bb4 a5 19.Be7 Qe7 20.a4 Rab8 21.Qc2 The isolani on c4 becomes a target 21...Rb7 22.Bc4?? (better is 22.Nd2=) 22...Rfb8?? (better is 22...Rc7–+) 23.Bd5+/– Nd5 24.Ne5 Rb2 25.Qc1 R8b3 (25...Qb7 26.e4 Ne7 27.Nd3+/–) 26.Qc5 Qc5 27.dc5 Rc3 28.Rfc1 (28.Rfb1 Rb1 29.Rb1 Nb4+/–) 28...Rbc2 (28...Ra2!+=) 29.Rc2+/– Rc2 30.c6 (better is 30.Rb1 Nb4 31.Nd3+/–) 30...f6= 31.Nf3 Rc6 32.Nd4 Rc5 (32...Rb6!?=) 33.Ne6 Rc4 34.Nd4 h5 35.Kh2 Kf7 36.Kg3 g5 37.h4 g4 38.Nf5 Kg6 39.Nd6 Rb4 40.Nc8 Nc3 Attacks the isolani on a4 (40...Rc4 41.Nd6 Rb4 42.Nb5+=) 41.Na7 (41.Ne7!? Kf7 42.Nc6+=) 41...Ra4 (worse is 41...Na4 42.Nc6 Nc3 43.Ra5+=) 42.Ra4 Na4 43.Nc6 Nc3 44.Na5 f5 (better is 44...Ne4!? 45.Kf4 Nf2=) 45.f3+/– gf3 46.Kf3 Nd1 47.Nc4 Nc3 48.Ne5 Kf6 49.Nd7 Kg6 50.Nf8 Kf6 51.Nh7 Kg6 52.Ng5 Nd5 53.e4 fe4 54.Ke4 Nf6 55.Kf4 Ng4 56.g3 Nf2 57.Ne6 Nd3 58.Ke3 Ne5 59.Nf4 Kf5 60.Nh5 Kg4 61.Nf6 Kg3 62.h5 Kh4 63.h6 Ng6 0–1. joaquimbage – amba22, internet, 2012.

7.Be2 Qc7 8.Bf6 gf6 9.0–0 Nc6 10.c4 Ne5 (10...dc4!? 11.Bc4 Ne5 12.Ne5 fe5=) 11.cd5+= ed5 12.Nc3 Qd6 13.Qb3 Bc6 14.Bb5 (14.d4 Nc4+/–) 14...Bb5 (better is 14...Nf3 15.gf3 Rd8=) 15.Qb5+/– Qc6 16.d4 (better is 16.Nd4!? Qb5 17.Ndb5+–) 16...Nf3+= 17.gf3 Qb5 18.Nb5 Kd7 19.Rac1 Bd6 20.Nd6 Kd6 21.Kh1 Rac8 22.e4 Rc1 23.Rc1 h5? (better is 23...Re8!? 24.Re1 Rc8=) 24.Rc5+/– de4 25.fe4 Re8 26.f3 Rh8 27.h4 b6 28.Rd5 Kc6 29.Rf5 Rh6 30.Kh2 a5 31.e5?? (better is 31.a4+–) 31...fe5+= 32.de5 Rh7 33.Kg2 a4 34.Kf2 b5 35.Ke3 b4 36.Kd4 b3 37.ab3 ab3 38.Kc3 Kd5 39.Kb3 Ke6 40.Rg5 Rh6 41.f4 Rg6?? (41...f6 42.ef6 Rf6 43.Rh5 Rf4 44.Kc2+=) 42.Rh5 (better is 42.f5 Kd5 43.fg6 fg6 44.Kb4+–) 42...Rg4 43.Rh6 Kf5? (better is 43...Ke7 44.Kc4 Rf4 45.Kd5 Rf1+/–) 44.Rf6 Ke4 45.h5 Rf4 (45...Rg7+–) 46.Rf4 Kf4 47.h6 Kg5 (47...Ke5 48.h7+–) 48.h7 Kg6 49.h8Q f6 1–0. fjanusz52 – gregor199, internet, 2013.

5.Nf3 Bd6

6.a4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c6 4.a4 d5 5.e3 Bd6 6.Nf3).

6.c4 Nbd7 7.a4 0–0 8.Qc2 a6 9.Nc3 Ne5 10.Ne5 Be5 11.d4 Bc7 12.Be2 Bd7 13.0–0 dc4 14.Bc4 a5 15.Rfd1 Be8 16.e4 Rc8 17.Ba3 Bh2 18.Kh2 Qc7 19.e5 cb5 20.Nb5 Bb5 21.ab5 Rfd8 22.Rac1 1–0. Arno de Visser – Klopmeijer, Noordkop 1987.

6.bc6 Nc6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.bc6 Nc6 6.Nf3 Bd6).

6.d4 0–0 7.a4 a6 8.Ba3 (8.Bd3 ab5 9.ab5 Ra1 10.Ba1 cb5=+) 8...Ba3 9.Na3 ab5 (9...Qa5 10.Qd2 Qa4 11.bc6 Nc6 12.Bd3–/+) 10.ab5 Nbd7 (10...Ne4 11.Bd3=+) 11.Bd3 (11.c4 Ne4 12.Nc2 Ra1 13.Qa1 dc4 14.bc6 Nb6=) 11...c5 (11...Qe7 12.Qc1=) 12.c4 b6 (12...Qe7 13.Nc2 Ra1 14.Qa1 (< 14.Na1 cd4 15.ed4 e5–/+) 14...cd4 15.ed4= (< 15.Nfd4 Ne5 16.Qc3 Qc7–/+; 15.Qd4? e5 16.Ne5 Ne5 17.cd5 Rd8–+)) 13.0–0 cd4 (13...Qe7 14.Nc2 Ra1 15.Na1 dc4 16.Bc4 Bb7=) 14.cd5 (better is 14.Nd4!? Bb7 15.cd5 Bd5 16.Qe2=) 14...de3–/+ 15.de6 ef2 16.Rf2 fe6 17.Nc4 Bb7 18.Nd6 (18.Nfe5 Ne5 19.Ne5 Bg2 20.Bh7 Nh7 21.Rg2 Ra5–+) 18...Bd5 (better is 18...Bf3 19.gf3 Ra1 20.Qa1 Nc5–+) 19.Nd4?? (19.Ra8 Qa8 20.Nd2 Qa3–+) 19...Nc5 20.Nb7?? Bb7 21.Bc4 Bd5 22.Nc6 Bc6 23.bc6 Ra1 24.Qa1 Nfe4 25.Qa2 Rf2 26.Be6 Kf8 27.Qf2 Nf2 (28.Bd7 Nfd3 29.h4 Nd7 30.c7 Qc7 31.h5 Qg3 32.h6 Qf2 33.Kh2 Nf4 34.hg7 Kg7 35.Kh1 Qg2) 0–1. gtate (1900) – rhand (2200), net–chess.com, 2004.

6.Be5 0–0 7.Nc3=+.

6.Be5 Be7 7.Nc3 (7.Be2 cb5 8.Bb5 Nbd7=) 7...Nbd7 (7...0–0 8.Bd3=+) 8.bc6 bc6 9.Rb1 (9.Bf4 Bb4=) 9...Ne5 10.Ne5 Qd6 (10...Bd7!?=) 11.Nc6+= 0–0 (11...Bf8 12.Bb5+=) 12.Ne7+/– Qe7 13.Qf3 (13.Be2 Bd7+/–) 13...Bd7 (13...Bb7 14.Bd3+=) 14.Ba6 Rab8 15.0–0 Bc6 (15...Qd6 16.Be2+=) 16.Qg3 e5 17.d4 (17.Rb3 Nd7+/–) 17...Rb1 (17...Qa3 18.Rb8 Rb8 19.de5+= (< 19.Qe5 Re8 20.Qf5 Qa6–+)) 18.Nb1 (< 18.Rb1 Qa3 19.de5 Nd7=+) 18...ed4 19.ed4 Ne4 (19...Re8 20.Bd3+=) 20.Qf4 (20.Qe3 Qb4+=) 20...g5 (20...Re8 21.Bd3+=) 21.Qf5 (21.Qe3 Re8+/–) 21...Nd6 (21...Qf6 22.Qf6 Nf6 23.Nd2+/–) 22.Qf3 (22.Qh3 Nb5+/–) 22...f5 (22...Nb5 23.c3+/–) 23.Na3 (23.Nc3 Ne4 24.Ne4 fe4+/–) 23...Ne4 24.Qd3 f4 (24...Qb4 25.c4+/–) 25.c4 (25.Nc4 Qe6 26.Ne5 g4+/–) 25...g4 26.f3 (26.cd5!? Bd5 27.Re1+/–) 26...gf3 27.Rf3 (< 27.Qf3 Nd2 28.Qc3 Nf1 29.Kf1 Qe3–/+) 27...Ng5 28.Rf1 (28.Rf2 f3 29.cd5 Bd5+=) 28...f3 (28...Qg7 29.Kh1 Ne6 30.Nc2 dc4 31.Qe2=) 29.gf3+/– Nh3 30.Kh1 Qh4 (30...Nf4 31.Qc3 Qe2 32.Rg1 Kh8 33.cd5 Nd5 34.Be2 Nc3=) 31.Qe2 (31.cd5 Bd5 32.Bc4 Bc4 33.Qc4 Kh8+–) 31...Re8 (31...Nf4 32.Rg1 Kh8 33.Qe5 Qf6 34.Qf6 Rf6 35.c5+–) 32.Qg2 Kh8 33.Qg3 Qh5 34.c5 (better is 34.Bb5 Bb5 35.cb5+/–) 34...Ng5?? (34...Rg8 35.Qe5 Qe5 36.de5 d4=) 35.Nb5+– Rf8 (35...Qg6 36.Rg1 h6 37.Nd6+– (< 37.Na7 Bd7 38.Bb7 Qf7+–)) 36.Qd6 (better is 36.Qe5 Kg8 37.f4+–) 36...Rf3 37.Qe5 (37.Na7?! Rf1 38.Bf1 Qf3 39.Kg1 Qe3 40.Kg2 Qf3 41.Kg1 Qe3 42.Kh1 Qf3 43.Kg1=) 37...Kg8 38.Rg1 (38.Na7?! Rf1 39.Bf1 Qf3 40.Kg1 Ne4 41.Qe6 Kg7+–) 38...h6 39.Na7 Rh3 (39...Rf2 40.Qg3 Ra2 41.Nc6 Ra6 42.Qb8 Kh7+–) 40.Bf1 (better is 40.Be2 Qe8 41.Nc6 Qe5 42.Ne5 Kf8 43.Rf1 Ke7 44.Ng6 Kd8 45.Rf8 Kc7+–) 40...Rh4 (40...Bd7 41.Qd5 Kh8 42.Bh3 Qh3+–) 41.Nc6 Re4 42.Qd5 Kh8 43.Qf5 (43.Ne5 Qe8 44.Rg5 hg5 45.Qe4 Kg8 46.Bd3 Qh5 47.Qd5 Kg7 48.Qd7 Kf6 49.Qd6 Kg7 50.Qe7 Kg8 51.Bc4 Kh8 52.Qf8 Kh7 53.Bd3 Qg6 54.Bg6) 43...Re8 (43...Qf3 44.Qf3 Nf3+–) 44.Qf6 (better is 44.Ne5 Rg8+–) 44...Kh7 45.Rg5! Qg5 (45...hg5 46.Ne7) 46.Bd3 (46…Kg8 47.Bc4 Kh7 48.Qf7 Qg7 49.Qe8+–) 1–0. market (2235) – Cerati (1865), GameColony.com, 2002.

6.h3 0–0! 7.Be2 Nbd7 8.0–0! a6 9.ba6 ba6 10.d3 e5 11.Nbd2 Re8 12.e4 Nc5 13.Ba3 de4 14.Bc5 Bc5 15.de4 Qc7 16.Bd3 Be6 17.Ng5 Rad8 18.Ne6 Re6 19.Qf3 Bd4 20.Rab1 c5 21.Nc4 Rb8 22.a4 Rb4 23.a5 Re8 24.Nb6 Rb8 25.Rfc1 R8b6 26.ab6 Qb6 27.Rb4 cb4 28.Rf1 a5 29.Qd1 a4 30.Qb1 a3 31.Qa2 h6 32.Kh1 Bf2 33.Bc4 Ne4 34.Bf7 Kh8 35.c3 Ng3 36.Kh2 Nf1 37.Kh1 Ng3 38.Kh2 bc3 39.Qd5 Qe3 40.Bg6 Bg1 0–1. wojtekkk – moorish, internet, 2014.

6.Be2 0–0

7.0–0 Nbd7 8.c4 Re8 9.Nc3 e5 10.a4 e4 11.Nd4 Ne5 12.bc6 bc6 (12...Nc4!? 13.cb7 Bb7=+) 13.cd5= cd5 14.Ndb5 Bb8 15.Qb3 a6 16.Na3 (better is 16.Nd4=+) 16...Be6 17.Qc2 Qd6 18.g3 Bh3 19.Rfe1 Nf3 20.Bf3 ef3 21.Qd3 Ne4 (21...Qe6!?–+) 22.Ne4 (better is 22.Qd5!? Nc3 23.Qd6 (23.Qa8 Ne2 24.Re2 fe2–+) 23...Ne2 24.Re2 Bd6 25.Ree1=) 22...de4–/+ 23.Qd6 Bd6 24.Nc4 Bb4 25.Bc3 a5 (better is 25...Be7–/+) 26.Bb4+= ab4 27.Nd6 (better is 27.Reb1!?=) 27...Re6–/+ 28.Nb5 h6 (better is 28...Rb6 29.Reb1 Bd7–/+) 29.Reb1+= Rb6 30.Rb4 Bd7 31.Rab1 Rab8 32.h4 (32.Re4?! Bf5 33.Reb4 Bb1 34.Rb1 Ra8=+) 32...f5 33.Kf1 g6 34.Ke1 Kf7 (34...Ra8 35.d3+/–) 35.Kd1 (better is 35.Nd6 Rd6 36.Rb8 Ba4 37.R1b6 Rb6 38.Rb6+/–) 35...Ke6?? (35...Ra8 36.Nc3 Rba6 37.Ra1+=) 36.Kc2 (better is 36.Nd4 Ke7 37.Rb6 Ba4 38.Ke1 Rb6 39.Rb6 Kf7+–) 36...Kd5?? (36...Bb5 37.Rb5 Rc6 38.Kd1+=) 37.Kb3 (better is 37.Rd4 Ke5 38.Rd7 Rc8 39.Kb3+–) 37...Bb5= 38.ab5 Rb5 39.Rb5 Rb5 40.Kc2 Rb1 (better is 40...Rc5!? 41.Kd1 Rc6–/+) 41.Kb1= Kc4 42.Kc2 g5 43.hg5?? (better is 43.h5 g4 44.Kc1=) 43...hg5–+ 44.Kd1 Kd3 45.Ke1 Kc2 46.g4 fg4 47.d3 Kd3 48.Kf1 Kd2 49.Kg1 Ke2 50.Kh2 Ke1 51.Kg3–+ Ke2 (51...Kf1 52.Kg4 Kf2 53.Kg5 Ke3 54.Kf5–+) 52.Kg4?? Kf2–+ 53.Kg5 Ke3 54.Kf5 f2 55.Ke5 f1Q 56.Kd5 Qf6 57.Kc5 Qe6 58.Kb5 Qd6 59.Kc4 Kd2 60.Kb3 e3 61.Kc4 e2 62.Kb3 e1Q 63.Kc4 Qc1 64.Kb3 Qb6 65.Ka2 Qcb2# 0–1. revbodio1 – MVLousProfits, Live Game Caissa's Web, 2004.

7.0–0 Re8 8.c4 dc4 9.Bc4 cb5 10.Bb5 Bd7 11.Na3? (better is 11.Qb3+=) 11...Ba3–+ 12.Ba3? (better is 12.Bd7 Bb2 13.Be8 Ba1 14.Bf7 Kf7 15.Qa1–+) 12...Bb5 13.Qb1 (13.Re1 Bd3–+) 13...a6 (better is 13...Bf1 14.Qb7 Qb6 15.Qa8 Bd3–+) 14.Ng5 (14.Rc1–+) 14...Bf1 15.e4 (15.Qb7 Nbd7 16.Rf1 Qa5 17.Nh7 Qa3 18.Nf6 Nf6–+) 15...Bd3 16.Qb7 Nbd7 17.Qb3 Be4 18.Ne4 Ne4 19.Re1 Ndf6 20.d3 Rb8 21.Qd1 Qd4 22.Re3 Nc3 23.Qd2 Ng4 24.Bb2 0–1. Schmidt,Valeska – Ickler,Uwe, Dortmund6, 2003.

7.a4 cb5 8.ab5 a5 9.0–0 =.

7.a4 Nbd7 8.0–0 e5 =.

7.a4 Nbd7 8.Ba3 c5 9.0–0 =+.

7.a4 Nbd7 8.Ba3 Qe7 9.0–0 (9.Bd6 Qd6 10.d4 e5=) 9...a6 (9...c5 10.a5=+) 10.bc6 bc6 11.d4 (11.Bd6 Qd6 12.d4 c5=) 11...c5=+ 12.c3 (12.c4 Rb8=+) 12...Rb8 (12...e5 13.c4 dc4 14.dc5 Nc5 15.Nfd2=+) 13.Qc2 (13.c4 dc4 14.Bc4 e5=+) 13...c4 (13...e5 14.Nbd2–/+) 14.Bd6 Qd6 15.Nbd2 Bb7 (15...e5 16.Rfb1=) 16.Rfb1 Bc6 17.Bd1 (17.Ng5 a5=) 17...Rb1 (17...Rfe8 18.Be2=) 18.Nb1 (18.Rb1 Rb8=) 18...Qb8 (18...Rb8 19.Nbd2=+) 19.Nfd2 (19.Nbd2 Qd6=) ½–½. Bothe,Erhard – Erdmann,Wolfgang, GER–ch Seniors, 2001.

7.Be5 cb5 8.Bd6 Qd6 9.Bb5 e5 =+.

6.Be2 cb5

7.Bb5 Nc6 8.Ne5 =.

7.Bb5 Bd7 8.Bd7 Nbd7 9.0–0 0–0 10.d3 b5 11.c4 bc4 12.dc4 Rb8 13.Bd4 (13.Bf6!? Nf6 14.Nbd2–/+) 13...Qc7–+ (13...dc4?! 14.Nbd2+=) 14.Nbd2 e5 (14...dc4?! 15.Rc1 e5 16.Rc4+=) 15.Bc3 e4 (15...dc4?! 16.Ba5 Qa5 17.Nc4–/+) 16.Nh4 Bh2 17.Kh1 Be5 18.Be5 Ne5 19.cd5 Neg4 20.g3 Rb2 21.Kg1? (21.Rc1 Nf2! 22.Rf2 Qg3 23.Qg1 Qh4 24.Rh2–+) 21...Ne3! 22.fe3 (22.d6 Qd6 23.Ne4 Qd1 24.Rfd1 Nd1 25.Nf6 gf6 26.Rd1 Ra2 27.Nf5–+) 22...Qg3 23.Ng2 Ng4 24.Rf4 (24.Qg4 Qg4 25.Rf2–+) 24...Qh2 25.Kf1 Qh1 0–1. danielro (2300) – pcmvr, net–chess.com, 2015.

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