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1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6

(...)

5.a4 Bc5 6.d4 Bd6 7.Nf3 0–0 8.c4 Bb4 9.Bc3 Qe7 10.c5 Bc3 11.Nc3 Nbd7 12.Be2 Rd8 13.0–0 Nf8 14.Qb3 Bd7 15.b6 cb6 16.cb6 Rdc8 17.Rfc1 Qd6 18.a5 Ng6 19.Ne1 Rc6 20.Nd3 Rb8 21.Nc5 Be8 22.Ra2 Nd7 23.N3a4 Nh4 24.Rac2 Nc5 25.Nc5 Nf5 26.Bd3 g6 27.Qb2 Qe7 28.e4 Nd6 29.ed5 ed5 30.Re2 Qd8 31.Rce1 f5 32.f3 Bf7 33.Qb4 Qh4 34.Qa4?? Rcc8?? 35.g3+– Qf6? 36.Nd7 Qg7 37.Nb8 Rb8 38.Qb4 Nc4 39.Re5 Ne5+/– 40.de5 Be6 41.Qd6 Re8 42.Rc1 Qf7?? 43.Rc7+– Qf8 44.Qf8 Rf8 45.Rb7 Bc8 46.Rc7 Re8 47.f4 h5 48.b7 Bb7 49.Rb7 Rc8 50.Rd7 Rc5 51.Rd5! Rc1 52.Kf2 Kf7 53.Ba6 Rc2 54.Be2 Ra2 55.a6 Ra3 56.Bc4 Ke7 57.Rd3 Ra4 58.Rd7! Ke8 59.Bb5 Rb4 60.Rb7 Kd8 61.e6 (61...Rb2 62.Ke3 Rb3 63.Kd4 Rb4 64.Kc5 Kc8 65.e7 Rb5 66.Kb5 g5 67.e8Q#) 1–0. Dumontelle,Joe – Vujosevic,S, April, 1979.

5.a4 g6 6.Nf3 Bg7 7.c4 0–0 8.Qb3 Nbd7 9.Nc3 Nc5 10.Qc2 b6 11.d4 Nce4 12.Nd2 Nd2 13.Qd2 Bb7 14.cd5 Nd5 15.f3 Bh6 16.Nd5 ed5 17.Be2 Re8 18.f4 Qe7 19.Kf2 a5 20.Ba3 Qf6 21.Rhf1 Re6 22.Rae1 Rae8 23.Bd3?? Re3 24.Qe3–/+ Re3 25.Ke3 Qh4 26.g3 Qh2 27.Kf3 Qd2 28.Re8 Kg7 29.Bf8 Kf6 30.Be7 ½–½. Dumontelle,Joe – Liitoya, Feb, 1978.

5.Nc3 ab5 6.Bb5 c6 7.Ba4 Bd7 8.Nf3 b5–/+ 9.Bb3 c5 10.a4 c4–+ 11.Ba2 b4 12.Nb5 Ra4 13.Nbd4 Qa5 14.0–0?? Ra2 15.Qb1 Ra1 16.Qa1 Qa1 17.Ra1 Bd6 18.Ra5 0–0 19.Nb5 Bb5 20.Rb5 Nbd7 21.Rb7 Ra8 22.Bf6 Nf6 23.h3 Ra1 24.Ne1 Re1# 0–1. Schlaeger,Michael (1885) – Kleinsorgen,Horst (2050), remoteschach.de, 2006.

5.Nc3 Bd6 6.Nf3 0–0 7.a3 (7.Be2 e5+=) 7...e5 (7...Bd7 8.ba6 Na6 9.Nb5+=) 8.d3 (8.Be2 c5+=) 8...Bd7 (8...c5 9.ba6 Na6 10.Be2–/+) 9.ba6 (9.d4 e4 10.Ne5 c6–/+) 9...Na6 10.Ne2 (better is 10.Be2–/+) 10...Ba4 (better is 10...Qe7!?–/+) 11.Ne5 (11.Be5 Be5 12.Ne5 c5=) 11...Be5 (11...Re8!? 12.Nf3 c5=) 12.Be5+= Qe7 (12...Re8 13.d4+=) 13.Bf6 (13.d4 Ne4 14.Ng3 f6+/–) 13...Qf6 14.e4?? (better is 14.d4+=) 14...Bc2!–+ 15.Qc1? (15.Qc2 Deflection from a1 15...Qa1) 15...Bd3 (better is 15...Nc5!? 16.Qc2 Qa1 17.Kd2 Qa3 18.Ng3–+) 16.ed5 Rae8 (16...Nb4! 17.Qc3 Nc2 18.Kd2 Qc3 19.Nc3 Na1 20.Bd3 Ra3 21.Bc4 Nb3 22.Bb3 Rb3 23.Kc2–+) 17.Ra2 Qf5 18.Rd2 Qd5 19.h4 (19.Qc3 Nc5–+) 19...Nc5 (19...Qa5!? 20.Rh3 Nc5 21.Qb2 Be2 22.Be2–+) 20.Qc3 Re7 (20...Rd8 21.f3 Rfe8 22.Rh3–+) 21.Rh3 Rfe8 (better is 21...Rd8!? 22.Re3 Re3 23.fe3 Ne4 24.Qc7 Nd2–+) 22.Rg3+= The mate threat is Qxg7 22...g6 23.h5?? (better is 23.Rgd3 Nd3 24.Qd3+=) 23…Ne4?? (23...Ne4 24.Rgd3 Qh5–/+ (24...Nc3?! 25.Rd5 Nd5 26.Rd5=); better is 23...Be2 24.Rd5 Bf3 25.Be2 A) 25...Bd5?! 26.Re3 (26.Qc5?? Re2 27.Kd1 Re1 28.Kd2 R8e2 29.Kc3 Rc1 30.Kd4 Rc5 31.Kc5 Rd2–+) 26...Ne6 27.hg6 fg6 28.Bc4=; B) 25...Re2 26.Kf1 Bd5–+) 0–1. Kaczmarek,Michal – Howie,Andy, IECC, 1998.

5.c4 Bc5 6.a4 d4 7.Qc2 e5 8.e4 Bg4 9.d3 0–0 10.h3 Bh5 11.Be2=+ Bb4 12.Nd2 c6 13.Bh5 Nh5 14.Ngf3 Re8 15.0–0 Nf4 16.Nb3 Qf6 17.Bc1 Nh3!–/+ 18.Kh2 Nf4 19.Bf4 Qf4–+ 20.Kg1 Nd7 21.bc6 bc6 22.Rab1 Re6 23.Qc1? Qc1–/+ 24.Rfc1 a5 25.c5 Rg6 26.g3 h5 27.Nh4 Rf6–+ 28.Kg2 Rb8 29.Nf3 Kh7 30.Nfd2 Bd2 31.Nd2–/+ Rb4 32.Rb4+= ab4 33.Rc4 Nb8 34.Rb4 Na6 35.Rc4 ½–½. Schmidt – Medl, corr DDR–HUN, 1984.

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

5.c4 Bd6 6.d4 ab5 7.c5 Be7 8.Bb5 Bd7 9.Qb3 Nc6 10.Nd2 0–0 11.Ngf3 Na5 12.Qd3? (12.Qb4 b6 13.Bd3 Nb7+=) 12...Bb5?? (better is 12...c6 13.Ba4 Nc4 14.Nc4 dc4 (14...Ra4?! 15.Nb6 Ra6 16.0–0=) 15.Qc4 Qa5 16.Ke2 Qa4 17.Qa4 Ra4–+) 13.Qb5= Qd7 14.Qd7 Nd7 15.Bc3 b6 16.cb6 Nb6 (16...cb6 17.Ba5 Ra5 18.Ke2+=) 17.0–0 (17.a4 Ra6 18.Ke2 Rfa8=) 17...Nac4= 18.Nc4 Nc4 19.a4 Rfb8 20.Ra2 Rb3–/+ 21.Bd2 Ra3 22.Ra3 Ba3 23.Ra1 Ra4 24.Bc3 Ra8 25.g3 Rb8 26.Nd2 Nd2 27.Bd2 Bd6 28.Rc1 Kf8 29.Kg2 Ke7 30.Ra1 e5 31.Rc1 e4 32.Rc2 Kd7 33.Bc3 g6 34.Bb2 h5 35.Ba1 Ra8 36.Bc3 Ra4 37.Bd2 Rc4 38.Ra2 c5 39.dc5 Bc5 40.Kf1 Bb4 41.Bb4 Rb4 42.Ra5 Ke6 43.h4 d4 44.ed4 Rd4 45.Ke2 Rd5 46.Ra4 Kf5 47.Ke3 Rd3 48.Ke2 Rd5 49.Ke3 Re5 50.f3 ef3 51.Kf3 f6 52.Rf4 Ke6 53.Ra4 g5 54.hg5 fg5 55.Ra6 Kf5 56.Ra8 Rb5 57.Rf8 Kg6 58.Rg8 Kh7 59.Ra8 Rb3 60.Kf2 Kg6 61.Ra5 Rb4 Black intends h4 62.Ra2 Kf5 63.Kg2 Kg4 64.Rc2 Ra4 65.Rb2 h4 66.gh4 Kh4 67.Rc2 Rg4 68.Kh2 Rg3 69.Rc4 Rg4 70.Rc2 Re4–+ 71.Ra2 g4 72.Rb2 Rc4 73.Ra2 Kg5 74.Rb2 Kf4 75.Rf2= Kg5 76.Ra2 Rc3 77.Kg2 ½–½. Mazurkiewicz,Marcin (2000) – Campbell,Charles, 39th Olympiad Men, 2010.

5.Nf3= b6 6.c4 (6.Ne5 Bd6=) 6...Be7 (6...dc4 7.Bc4 ab5 8.Bb5 c6 9.Be2=) 7.cd5 ed5 8.Qc2 0–0 9.Be5 Bg4 (9...Ra7 10.Nc3=+) 10.Ng5 (10.Bc7!? Qc8 11.Bd3=) 10...Nbd7=+ 11.Bf4 (11.Qc7?? Rc8 (11...Ne5?! 12.Qe5 ab5 13.Bd3–/+) 12.Qc3 Rc3 13.Bc3 a5–+) 11...Nc5 12.d4 Nce4 13.Ne4 de4 14.ba6 (14.h3 Bb4 15.Nd2 Be6 16.Qc7 ab5 17.Qd8 Rfd8=+ (< 17...Rad8 18.Be5+=)) 14...c5 15.Be5 cd4 16.Bd4 Bb4 17.Nd2 Bc8 18.Rb1 Ba5= 19.Rb2 Ba6 20.Ba6 Ra6 21.0–0 Bd2 22.Qd2 Qd7 23.Qe2+= Rfa8 24.Bf6 gf6 25.Rd1 (25.Qh5 Qe6=). negda – Forberg, ChessWorld.net #11089, 2004.

5.Nf3 c5 6.bc6 Nc6 7.Be2 b5 8.0–0 Bd6 9.a4 b4 10.d3 Bb7 11.Nbd2 0–0 12.Nb3 e5 13.Nfd2 Nd7 (13...Qc7!?–/+) 14.e4= d4 15.Nc4 Bc7 16.Bc1 f5 (16...Bc8!?=) 17.ef5+= Rf5 18.Bf3 Na5 19.Bb7 (worse is 19.Nba5 Bf3 20.gf3 Rh5–/+) 19...Nb7 20.Qg4 Rf7 21.Bg5 Qf8 22.Qe6 (22.Bd2 Rb8+=) 22...Re8 23.Qa6 Nbc5 24.Qc6 (better is 24.Qb5=) 24...Ne6?? (better is 24...Nb3!? 25.cb3 Nc5=) 25.Bh4 (25.Bd2 Nf6+–) 25...g5? (better is 25...Ndc5+/–) 26.Bg3+– Nb8 27.Qe4 (27.Qd5 Nf4 28.Bf4 Rd8+–) 27...Nf4 (27...Nd7 28.Rae1+–) 28.a5 Na6 29.Rfe1 Re6 (29...Rd8+–) 30.Bf4 Rf4 31.Qd5 Qf7 (31...Qh6 32.g3 (32.Ne5?! Rf5 33.f4 gf4 34.Nd4 Rfe5 35.Re5 Be5 36.Ne6 Ba1+–) 32...Rf7 33.Nd4+–) 32.Ne5 Re5 33.Re5 Be5 34.Qe5 Rf2 (34...h6 35.Nd2+–) 35.Qg5 Kf8 (35...Kh8 36.Re1 Rf6 37.Qe5+–) 36.Qd8 (36.Qd8 Kg7 37.Qd4 Rf6 38.Nd2+–) 1–0. baitang (1975) – zrenjanin (2035), gameknot.com, 2015.

5.Nf3= c6 6.bc6 (6.a4 Bd6=) 6...Nc6+= 7.c4 (7.Be2 Bd6+=) 7...dc4 8.Bc4 b5 9.Bb3 Nb4 (9...Bb7 10.a4+=) 10.0–0 Bb7 11.d4 Bd6 12.Nbd2 0–0 (12...Nd3 13.Qc2 Nb2 14.Qb2+=) 13.a3 (13.Qe2 Ne4+=) 13...Nd3 14.Bc3 (14.Qc2 Nb2 15.Qb2 Ne4+=) 14...b4 (better is 14...Rc8!? 15.Nb1 Be4–/+) 15.ab4= Rc8 (15...Nb4 16.Nc4=) 16.Bc4+= Bb4 (16...Nb4 17.Bb4 Bf3 18.Qa4+= (18.Qf3?! Bb4 19.Ba6 Bd2=; worse is 18.Nf3 Rc4 19.Bd6 Qd6+=)) 17.Qb3 (17.Bb4 Nb4 18.Qa4 Nbd5 19.Ba6 Nc3+/–) 17...a5 18.Bb4 (worse is 18.Bd3 Rc3 19.Qb1 Qd5+=) 18...Nb4 19.Ra3 (19.Rfc1 Ne4+=) 19...Nfd5 (19...Ne4 20.Rfa1 Nd2 21.Nd2=) 20.Ne1 (20.Rfa1 Ra8+=) 20...Qc7 (20...Nb6 21.Bb5 (worse is 21.Ra5 Nc4 22.Nc4 Bd5–/+) 21...Qg5 22.Ra5+=) 21.Nd3 Nd3 22.Qd3 Ra8 (22...Rfd8 23.Rfa1 Nb4 24.Qc3=) 23.Rb1 (23.Rc1 Rfc8+=) 23...Nb4= 24.Qb3 (24.Qe2 e5=) 24...Rfb8 (better is 24...Rfd8=) 25.e4 (25.Qd1 Bd5=) 25...Qf4 (25...Rd8 26.Qc3 Qd6 27.Ra5 Ra5 28.Rb4 Qd4 29.Qd4 Rd4 30.Rb7 Kf8–+) 26.Qe3= Qe3 27.fe3 Bc6 (better is 27...Rc8=) 28.Nb3?? The isolani on a5 becomes a target (better is 28.Bb3=) 28...Nc2–+ 29.Ra2 Be4 (29...Ne3?! 30.Bd3 a4 31.Nc5 Rb1 32.Bb1–+) 30.Rbb2 (30.Rc1 Ne3 31.Ra5 Bg2–+) 30...Ne3 31.Re2 Nc4 (31...Nc4 32.Na5 Rb1 33.Kf2 Nd6–+) 0–1. Suess,Stefan – Koch, Odenwald–Schachkongress, 1984.

5.f4 ab5 6.Bb5 c6 7.Be2 Nbd7 8.Nf3 Be7 9.Ne5 b5?? (9...Ne5 10.Be5 0–0 11.0–0=+) 10.0–0?? (10.Nc6 Qb6 11.Ne7 Ke7+–) 10...0–0?? (10...Bb7=+) 11.g4?? (11.Nc6 Qe8 12.Bb5 Ba6+–) 11...Ne4?? (11...Ne5 12.Be5 Ne4 13.d3=+) 12.g5?? Ba6?? 13.d3 f6?? 14.gf6 Nef6+/– 15.Nc6 Qe8 16.Ne5 Ne5 17.fe5 Nd7 18.Rf8+= Nf8 19.Nd2 Qg6= 20.Kh1 Nd7 21.Bh5 Qg5 22.Qe2 Bb7 23.d4 Rf8 24.Rg1+/– Qh6 25.Qg4 Nb6= 26.e4? Nc4?? 27.Nc4+= bc4?? 28.Bc1+– g5 29.Bg5 Bg5 30.Qg5 Qg5 31.Rg5 Kh8 32.Kg1 de4 33.Rg3 Bd5 34.Re3 c3 35.h3 Ba2 36.Bg4 Rc8 37.Be6?? Be6–+ 38.Re4 Rg8 39.Kh2 Bd5 40.Re3?? Rg2–+ 0–1. var – georgizh, Live Game Caissa's Web, 2004.

5.a4 a5

6.Nf3 b6 7.c4 Bd6 8.cd5 Nd5 (8...ed5 9.Be2+=) 9.Be2 (9.Bg7 Rg8 10.Bb2 Bb7+/–) 9...Nb4 10.Nd4 (10.0–0 0–0+=) 10...c5 (10...e5 11.Nc2=+) 11.Nc2 Nd7 12.Nb4 cb4 13.Qb3?? Nc5 14.Qc4 Rg8?? 15.d4+/– Ne4?? 16.Bf3 Rb8?? 17.Be4+– Bb7 18.Bh7 Rc8? 19.Qd3 Rh8 20.Be4 Be4 21.Qe4 Rh4 22.Qf3 Rc2 23.Nd2 Rb2 24.Qc6 Ke7 25.Ne4?? Re4? 26.Qe4+– b3 27.Qb7 Kf6 28.0–0 Ra2 29.Rab1 b2 30.Qf3 Ke7 31.d5 Bb4 32.de6 fe6 33.Qb7 Kf6 34.Qb6 Ra3 35.Qd8+– Be7 36.Qd4 1–0. TIROLOCO – sleepyhead, Live Game Caissa's Web, 2004.

6.Nf3 Bd6 7.Be5 =+.

6.Nf3 Nbd7 7.Be2 Bd6 8.d4 c5 9.dc5 Nc5 10.c4 0–0 11.0–0 Be7 12.Nc3 dc4 13.Bc4 Qc7 14.Ne2 Rd8= 15.Qc2 b6 16.Be5 Qd7 17.Rfd1 Qe8 18.Rd8 Bd8 19.Ng5 h6+= 20.Nh3 Bb7 21.f3 Rc8 22.e4 Nfd7 23.Bd4 Bf6 24.Bf6 Nf6 25.Nf2 Qe7 26.Qa2 Nfd7 27.Bb3 Ne5 28.Qa3 Qg5–/+ 29.Bd1 Ncd3 30.Nd3+= Qd2? 31.Qb2?? Qe3= 32.Nf2 Qf2 33.Kf2 Nd3 34.Ke3 Nb2 35.Bb3 Nc4 36.Bc4 Rc4 37.Rc1 (37.Kd3 Rb4+=) ½–½. Golyak,Isay G (2275) – Polyak,Pavel, New York State–ch, 2001.

5.a4 Bb4

6.Nf3 0–0 7.Be2 Bd7 8.0–0 Qe8 9.c3 Bd6 10.Qb3 (10.Na3 e5+= 11.c4 e4 12.Nh4 Qe7 13.f3 Ne8 14.Qe1 dc4+=; 10.Ba3 ab5 11.Bd6 cd6 12.a5 b6 13.Na3 ba5 14.Qb1 b4–/+) 10...e5+= (10...ab5 11.ab5 Ra1 12.Ba1 e5 13.b6 Ba4 14.Qb2 cb6+=) 11.c4 dc4 (11...ab5 12.ab5 Ra1 13.Ba1 e4 14.Bf6 ef3+=) 12.Bc4 Bg4 (12...ab5 13.ab5 Ra1 14.Ba1 e4+=) 13.Be2 (13.d4!? Bf3 14.gf3 ed4= (14...ab5 15.Qb5 Qb5 16.ab5=)) 13...e4–/+ (13...ab5 14.Bb5 Qe7+=) 14.Nd4 Qe5 (14...Be2 15.Ne2 ab5 16.ab5 Ra1 17.Ba1+=) 15.g3 (15.f4!? Qh5 16.Bc4+=) 15...Be2–/+ 16.Ne2 Qh5 17.Bf6 (17.f3 ef3 18.Nf4 Bf4 19.Bf6 Bd6 20.ba6 Na6 21.Qb7 Nc5 22.Qf3 Qf3 23.Rf3 Nb3+=) 17...Qe2 (17...gf6 18.Nec3 Qf3 19.Qd5 ab5 20.Qb7 (20.Nb5?! c6 21.Qd6 cb5=) 20...Ra4 21.Na4 ba4 22.d4+/–) 18.Bb2 (18.Bd4 ab5 19.Qb5 Qb5 20.ab5 Ra1 21.Ba1 Rd8–/+) 18...Nd7 (18...ab5 19.Qb5 Qb5 20.ab5 Ra1 21.Ba1–/+) 19.Nc3 Qg4 (19...Qd3!?–/+) 20.Qd5= Nf6 (20...ab5 21.Ne4 ba4 22.d3+=) 21.Qb7+= Rab8 22.Qc6 (22.Qa6?! Rfd8+–) 22...Rb6 23.Qc4 Qh3 24.Qe2 ab5 25.Nb5 Be7 26.Bf6 Bf6 27.Rac1 c6 28.Nc3 Bc3 29.Rc3 Qd7 30.d4+/– ed3 31.Rd3 Qa7 32.Rd4 c5 33.Rc4 Rb4 34.Qc2 Ra8? 35.Rc5+– Qa4?? 36.Rc8 Qe8 37.Re8 Re8 38.Rd1 Rbb8 39.Rd7 Rf8 40.e4 Rbc8 41.Qd3 h5 42.e5 Rce8 43.f4 h4 44.gh4 Rb8 45.e6! Rfc8 46.e7 Rc1 47.Kg2 Rb2 (47...Re8 48.Rd8 Rc8 49.Rc8 Rc8 50.Qd8 Rd8 51.ed8Q Kh7 52.h5+–) 1–0. Madhukiran,G (2010) – Praveen,P (2210), Parsvnath ch–Commonwealth, 2007.

6.Nf3 0–0 7.Be2 Nbd7 8.0–0 a5 9.Ba3 Ba3 10.Na3 Nc5 (10...e5 11.d4 ed4 12.Qd4=) 11.c4+= c6 12.h3 Qc7 13.d4 Nce4 14.c5 b6 15.bc6 Qc6 (15...bc5 16.Ne5+=) 16.Bb5 Qc7 17.cb6 (17.c6 Nd6+=) 17...Qb6= 18.Rc1 Bd7 19.Ne5 Bb5 20.Nb5 Rfc8 21.Qe2 Nd6 22.Nd6 Qd6 23.Rc8 Rc8 24.Qb5 Qb4? (24...Qc7 25.Rb1=) 25.Rb1 (25.Qb4 ab4 26.Rb1 Ne4 27.Rb4 Rc1 28.Kh2 Rc8+–) 25...Qb5 (25...Qc3!?+=) 26.Rb5+/– Ra8 27.Nc6 (better is 27.Rb7!?+/–) 27...Ne4+= 28.Ra5 Ra5 29.Na5 Nc3 30.Kf1 ½–½. Hal1958 – Jule, playchess.de, 2004.

6.Nf3 0–0 7.Be2 Ne4 8.0–0 ab5 9.ab5 Ra1 10.Ba1 c5 11.d3 Nd6 12.Be5 f6 13.Bd6 Qd6 14.c4 Nd7 15.Nbd2 Nb6 16.Qc2 Bd7 17.Ra1 Rd8 18.Nb3 Be8 19.Nfd2 Bg6 20.Qb2? (better is 20.e4=) 20...Bd3!–+ 21.Bd3 dc4 22.Bc4?? (better is 22.Be4 cb3 23.Nf1–+) 22...Nc4 (22...Bd2?! A) 23.Nd2?? Nc4 (worse is 23...Qd2 24.Be6 Kf8 25.Qb1+=) 24.Qc3 Nd2–+ (24...Qd2?! 25.Qc4 Qd1 26.Qf1–/+); B) 23.Qd2 Nc4 24.Qd6 Nd6 25.Nc5+=) 23.Rd1 Nb2 (23...Nb2 24.Rb1 Bd2–+) 0–1. Hal1958 – Algemeine_Eintracht, playchess.de, 2004.

6.Nf3 c5 7.Be2 ab5 8.ab5 Ra1 9.Ba1 Nbd7 10.0–0 0–0 11.c4 Nb6 12.Qb3 Re8 13.Ne5 Nbd7 (13...dc4 14.Nc4 Nc4 15.Bc4=) 14.f4 Ne5 15.fe5 Ne4 16.Qc2 Qa5 17.Nc3 Bc3 18.dc3 Qc7 (18...b6=) 19.Bb2?? (19.cd5 ed5 20.c4 Re5+/–) 19...h6?? (19...Qe5 20.Bd3–/+) 20.Bd3 (20.cd5 ed5 21.c4 Be6+/–) 20...f5 (20...Qe5!? 21.cd5 ed5+=) 21.ef6 gf6? (better is 21...Nf6 22.Rf3 Rd8=) 22.Be4 de4 23.Qe4 f5 (better is 23...Rf8!?+–) 24.Rf5! b6?? (24...ef5 25.Qf4 Double attack (25.Qe8 Pinning; 25.Qe8 Deflection; 25.Qf4 Decoy)) 25.Rf6 Bb7 (25...Re7 26.Qg6 Rg7 27.Qe8 Kh7+–) 26.Qg4 (better is 26.Qg6 Qg7 27.Qe8 Kh7 28.Rf7+–) 26...Kh7 (26...Qg7 27.Rg6 Re7 28.Rg7 Rg7 29.Qe6 Kh7 30.Qf5 Kg8+–) 27.Qg6 Kh8 28.Rf7 1–0. Nikolic,Jovane (1690) – Da Silva,Jose Rafael Mota, Sao Paulo BRA, 3rd IRT Open, 2013.

5.ba6 ba6

6.Nf3 c5 7.c4 Nc6 8.cd5 ed5 (worse is 8...Qd5 9.Bf6 gf6 10.Nc3+=) 9.Bf6 Qf6 10.Nc3 Be7?? (better is 10...Qe6+=) 11.Nd5+– Qe6?? (better is 11...Qd6 12.Nb6 Rb8 13.Nc8 Rc8 14.Ba6 Rb8+–) 12.Nc7 (12.Nc7 Kd8 13.Ne6 Be6 14.d4 cd4 15.Nd4 Nd4 16.Qd4 Ke8 17.Qg7 Bb4 18.Ke2+–) 1–0. pierre – goddess, internet, 2011.

6.Nf3 Bd6 7.c4 0–0 8.d4 dc4 (8...Nc6 9.Nbd2=) 9.Bc4= Bb7 10.Nbd2 Nd5 (10...Bd5 11.Bd5 Nd5 12.0–0=) 11.0–0+= e5?? (better is 11...Nd7+=) 12.de5+– Bc5 (12...Be7 13.Qb3 Nb6 14.Rfd1+–) 13.Nb3 Be3 (13...Bb6 14.Qd2 Ne7 15.Qc2 Bf3 16.gf3+–) 14.fe3 (better is 14.Na5!? Ra7 15.fe3 Nb6 16.Qd8 Rd8+–) 14...Ne3 15.Qd8 (15.Qe2!? Nf1 16.Rf1 Nd7+–) 15...Rd8 16.Rfc1 (16.Rfc1 Nd7 17.Ng5 Nc4 18.Rc4+–) 1–0. Orban,Chester J – Jokipii,Galen, corr WS/O/269 ICCF, 2009.

5.c4 c5

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 a6).

(with 6.bc6) 6.bc6 Nc6 7.Nf3 Be7 8.cd5 ed5 9.h3 0–0 10.Bd3 Qb6 11.Bd4 Nd4 12.Nd4 Bc5 13.Nb3 d4 14.Qc2 Bd6 15.0–0 de3 16.de3 Be5 17.Nc3 Be6 18.Nd4 Rac8 19.Na4 (better is 19.Rab1!? Qa7 20.Qd2+=) 19...Qa5–/+ 20.Qd1 Rfd8 21.Rb1 b5 22.Nb2 Qa2 23.Qe2 (23.Qd2 Qd5–+) 23...Bd4 24.ed4 Qd5 25.Ra1 Rd6 26.Rfd1 Rcd8 27.Bb1 Qg5 28.Qe3 Qh4 29.Ba2 Ba2 (29...Rd4?! 30.Be6 Rd1 31.Nd1 fe6 32.Qe6 Kh8 33.Qa6+=) 30.Ra2 Nd5 31.Qb3 Nf4 32.Qf3 Rg6 33.Nd3 (33.g3 Nh3 34.Kg2 Nf4 35.Kg1–+) 33...Nh3 (33...Rd4 34.Nf4 Rd1 35.Qd1+–; 33...Rg2?! 34.Kf1 Nd3 35.Kg2 Qd4 36.Ra6+=) 34.Kf1 Ng5 35.Qf4 Qh1 36.Ke2 Qg2 37.Qc7 (37.Ne5 Re6 38.Ra3–+) 37...Qg4 38.Ke1 (38.Kd2 Nf3 39.Kc1–+) 38...Nf3 39.Kf1 Qh3 40.Ke2 Nd4 41.Kd2 Ne6 (41...Ne6 42.Qd8 Nd8–+) 0–1. Novikov,Konstantin Ivan (2225) – Sinitsin,Evgeniy (2325), Rassadnev mem, 2006.

5.c4 Be7

6.a4 ab5 7.ab5 Ra1 8.Ba1 0–0 =+.

6.a4 ab5 7.cb5 0–0 8.Nf3 Nbd7 9.Be2 Bd6 10.d4 Ne4 11.Nc3 Bb4 12.Qb3 c5 13.0–0 Bc3 14.Bc3 c4 15.Qa3 Nc3 16.Qc3 b6 17.Rfc1 Bb7 18.Qc2 Ra5 19.Qc3 Qc7 20.Qc2 Rfa8 21.Bd3 Nf8 22.Be2 f6 23.h3 Nd7 24.Bd3= g6 25.Be2 Kg7 26.Rd1 Kh8 27.Nh4 Qb8 28.Rdb1 e5 29.Rc1 ed4–/+ 30.ed4 Qf4 31.Nf3 Re8 32.Re1= Nf8 33.Qc3 Ne6 34.Bd1 Qd6 35.Bc2+= Qc7 36.Re3 Bc8 37.Rae1 Bd7 38.Nh2 Raa8 39.Ng4 Kg7 40.Kh1 h5 41.Nh2+= Qf4 42.Nf3 h4 43.Kg1 g5 44.Qb4 Rad8 45.Qc3 Qd6 46.Nh2 Nf4 47.Nf1 Ra8 48.Qd2 Kg8 49.Qc3 Re6 50.Re6 Be6 51.Nd2 Bf7 52.Nf3+= Bg6 53.Re3 Bc2 54.Qc2 Kg7 55.Re1 Nd3–/+ 56.Ra1 Qe6 57.Qd2 Qe4 58.a5 g4 59.hg4 Qg4 60.Kh2? h3–+ 61.Rg1 Rh8 (62.Nh4 Rh4–+; 61...Ra5? 62.gh3 Qg1 63.Kg1 Rb5 64.Qe2+–; 61...ba5?? 62.gh3 Qg1 63.Kg1+–) 0–1. Machete (2295) – Plumpudding (2560), ICC, 2003.

6.a4 ab5 7.cb5 Nbd7 8.Nc3 d4 9.ed4 Bd6 10.Bc4 Nb6 11.d3 Nbd5 12.Nd5 ed5 13.Bb3 Bb4 14.Kf1 0–0 15.Nf3 Re8 16.Ne5 Be6 17.Rc1 Nd7 18.Rg1 Bd6 19.Qc2 Qg5 20.Re1 Re7 21.Nd7 Rd7 22.h3 Re7 23.Ba1 Qg6 24.Qd2 Rae8 25.Rd1 Bf5 26.g4 Be6 27.f3 Qf6 28.Qf2 Kh8 29.Rh1 Bb4 30.Rb1 Qf4 31.Bc2 Bg4 32.hg4 Be1 33.Qg2 Re2 34.Qh3 h6 35.Bd1 Qe3 36.Rh2 Rf2 37.Kg1 Rf3 0–1. Machete99 (2100) – Angelito2 (2020), ICC, 2002.

5.Nf3= Bb4

6.a4 Bd6=.

5.a4 ab5

6.ab5 Ra1 7.Ba1 Bd6 =+.

6.Bb5 Bd7 7.Bd7 Nbd7 8.d3 Bd6 9.Nd2 c5 10.Ngf3=+ 0–0 11.Ne5?? Ne5–+ (12.0–0 Nfg4–+) 0–1. Garcia – Zimmer,Georg, corr SOK–91–75, 1991.

6.Bb5 c6

7.Bd3 Nbd7 8.Nf3 –/+.

7.Bd3 Be7 8.c4 (8.Nf3 Nbd7+=) 8...Qb6 (8...Na6 9.Nf3–/+) 9.Qc2 (9.Bd4 c5 10.Bf6 Bf6+= (worse is 10...gf6 11.cd5 ed5 12.Nc3+=)) 9...Nbd7 (9...Na6 10.a5 Qd8 11.Nc3–/+) 10.Bd4 (10.Nf3 Nc5 11.Be2 Ra4 12.Ra4 Na4+=) 10...c5 (10...Qc7 11.Bb2–/+) 11.Bb2+= d4 12.Nf3 e5 13.Ng5 (13.a5 Qc6 14.e4 0–0–/+) 13...h6 14.Ne4 (14.a5 Ra5 15.Ra5 Qa5–/+) 14...Ne4 15.Be4 Nf6 16.Bd5? (better is 16.a5 Ra5 17.Ra5 Qa5 18.Bf3–/+) 16...Nd5–+ 17.cd5 Bf5!! 18.Qc1 (18.Qf5 Qg6 Double attack (18...Qb2 Deflection; 18...Qg6 Decoy)) 18...Bd3 19.f3 Qb4 (19...0–0 20.Kf2–+) 20.ed4 (20.Kf2 0–0–+) 20...cd4 (better is 20...ed4!? 21.Kf2 0–0 22.Ba3–+) 21.Kf2 Qa5 22.Re1 (22.Ba3 Bh4 (22...Qd5 23.Be7 f6 24.Qa3+/–) 23.g3 Bf6–+) 22...Qd5 (22...0–0 23.Bd4 Rfc8 24.Qb2 Bh4 25.g3 ed4 26.gh4 Qd5 27.Ra3–+) 23.Ba3 Ba3?? (better is 23...Bf6 24.Qc7 Qd7–+) 24.Ra3+= Bb1 25.Qb1 (25.Qc7 0–0 26.Rb1 d3+=) 25...0–0–/+ 26.Qf5 f6 27.f4 Qc4 28.Rh3 d3 29.Re4 Qc2 30.Rh6= Qd2 31.Kg3 ef4 32.Kh3 f3?? 33.Qh7+– Kf7 34.Qg6 Kg8 35.Qh7 Kf7= 36.Rg6 Rg8 37.Qh5 Kf8 38.Qf3?? Rh8–+ 39.Kg3 Rh6 40.Rh6= Qh6 41.Rh4 Qg5 42.Rg4?? Qe5–+ 43.Kh3 Rd8 44.Qb7 Qe3 45.g3 Qe7 46.Qe7 Ke7 47.Re4 Kf7 48.Re1= f5 49.Rd1?? Kf6 50.Kg2 Ke5 51.Kf3?? Kd4 52.Kf4 g6 53.h4? Ra8 54.h5?? gh5 55.Kf5 Ke3 56.Ra1 Ra5 57.Kg6 d2 58.Rh1 Ra4 59.Kh5 Kf3 60.Rd1 Ke2 61.Rb1 Rc4 62.Rb2 Rd4 63.Rd2 Rd2 64.g4 Kf3 65.g5 Kf4 66.Kh6 Kf5 67.g6 Kf6 68.Kh7 Rh2 69.Kg8 0–1. Woda,Janusz – Kroczka,Damian, Wielkopolska III Liga Seniorow Poland, 2012.

7.Be2 Bd6 8.f4 Ne4 9.Nf3 0–0 10.0–0 h6 11.c4 Nd7 12.Qc2 Re8 13.Nc3 Ndf6 14.Ne4 Ne4 15.d3 Nc5 16.Bd4 Nd7 17.c5 Bc7 18.Be5 Be5 19.fe5 f6 20.d4 f5 21.Qc3 Qa5 22.Qa5 Ra5 23.Nd2 b5?? 24.ab5+– Ra1 25.Ra1 cb5 26.Bb5 Kh7 27.Ra8 Rd8 28.Rc8! Rc8 29.Bd7 Rd8 30.c6 (30...Ra8 31.c7+–) 1–0. pierre – dreamsfulfilled, internet, 2006.

7.Be2 Be7 8.Nf3= 0–0 9.0–0 Na6 10.c4 Nb4 11.d4 b6 12.Na3 c5 13.dc5= bc5 14.cd5 ed5 15.Bb5 Bf5=+ 16.Ne5 Qc7 17.g4 Bd6 18.gf5 Be5–/+ 19.Be5 Qe5 20.Qf3 Ne4 21.Rfd1 Rfb8 22.Bf1? Ra4–+ 23.Nc4? Qa1 24.Ra1 Ra1 25.h4 Nd3 26.Kh2 Rf1 (27.Nd6 Rf2 28.Qf2 Ndf2–+) 0–1. MT – Didier, itsyourturn.com, 2000.

5.a4 b6

6.c4 c5 7.cd5 ed5 8.Bf6 Qf6 9.Nc3 d4 10.ed4 cd4 (10...Qd4 11.Nf3 Qd8 12.a5 ba5 13.Qe2 Be7 14.Qe4+=) 11.Nd5 Qe6 12.Qe2 Nd7?? (12...Kd8 13.Qe6 Be6 (13...fe6? 14.Nb6 Ra7 15.Nc8 Kc8 16.Nf3+–) 14.Nb6 Ra7=) 13.Nc7+– (13.Nc7 Ke7 14.Ne6 fe6 15.Qe4+–) 1–0. b4_player – branne, casual, 2013.

6.Nf3= Bd6 7.Be2 =.

6.Nf3 Bb7

7.c4 Bd6 8.cd5 Bd5 9.Nc3 =.

7.c4 Nbd7 8.Nc3 Bd6 =.

7.c4 Nbd7 8.Be2 dc4 9.Bc4 Bd6 10.d4 =.

7.c4 Nbd7 8.Be2 Bd6 9.0–0 (9...dc4 10.Na3=; 9.cd5 Nd5 10.Nc3 0–0=). Roczniak,Jan – Boryczko, corr Poland, 1971.

7.Be2 Bd6 =.

6.Nf3 c5

7.Nc3 Be7 =.

7.c4 a5 8.Be2= Bd6 9.0–0 0–0 10.d4 Bb7 11.cd5 Nd5 12.Na3 Nd7 13.Nc4 Bc7 14.Rc1+= Rc8 15.dc5 Nc5 16.Qd4 Nf6 17.Na5+/– ba5 18.Rc5 Bb6 19.Rc8+– Bc8 20.Qh4 Bb7 21.Rd1 Qe7 22.Bd3 h6 23.Ne5 Rd8 24.Ng4 Ng4?? 25.Qe7 (25...Bd5 26.Bd4+–; 25.Qg4?! e5+/–) 1–0. b4_player – opponent, gamecolony.com, 2007.

7.c4 Bd6 8.Bf6 Qf6 9.Nc3 =.

5.a4 c5

6.c4 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 a6 6.a4).

6.c4 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 c5 8.c4).

6.d4 Bd7 7.Nc3 (7.c4 cd4 8.Bd4 ab5 9.cb5 Ne4+=) 7...cd4 (7...c4 8.Nge2–/+) 8.ed4 (8.Qd4!? Qc7 9.Nf3=) 8...Bb4–/+ 9.Nf3?? (better is 9.Qd3–/+) 9...Ne4 10.Qd3 ab5 (10...Qa5 11.ba6 Na6 12.Be2–+) 11.ab5? (11.Nd2 Nd2 12.Qd2–+) 11...Bc3 12.Bc3 Ra1 13.Ba1 Qa5 14.Nd2 Qa1 15.Ke2 Qb2 (15...Nc3!? 16.Kf3–+) 16.Ne4 Bb5 (better is 16...de4 17.Qe4 Bb5 18.Kd2 Bf1 19.Rf1 0–0–+) 17.Nd6+– Ke7 18.Nb5 Rc8 19.Kd2 Nc6 20.Be2?? (20.Qh7 Na5 21.Qh4 Kd7 22.Ke3 Rc2 23.Qg3 Qc1 24.Kf3 Qd1 25.Kf4+=) 20...Nb4–+ 21.Qb3 (21.Qg3 Rc2 22.Ke3 Re2 23.Kf3–+) 21...Rc2 22.Qc2 Qc2 (22...Qc2 23.Ke3 Qe4 24.Kd2 Qg2–+) 0–1. Barrow,Aziz – Chiessi,Giampaolo, Internet Section, 2004.

6.Nf3 c4 7.d3 ab5 8.dc4? (8.ab5 Bb4 9.c3 Ra1 10.Ba1+=) 8...bc4–/+ 9.Ba3 (better is 9.Be5!?–/+) 9...Ra4–+ 10.Bf8 (10.Be2 Qa5 11.Qd2 Qd2 12.Nfd2 Nbd7–+) 10...Ra1 11.Bg7 Rg8 12.Bh6 Ne4 13.Be2 (13.Nfd2 Nf2 14.Kf2 Qh4 15.g3 Qh6–+) 13...Qa5 (better is 13...Rg2 14.Nfd2–+) 14.Nfd2 (14.Kf1–+) 14...Nc3 (better is 14...Nd2!? 15.Qd2 Rb1 16.Bd1 Qd2 17.Kd2–+) 15.Qc1 Nb1 16.0–0 Nd2 (better is 16...Nc3 17.Qa1 Ne2 18.Kh1 Qd2–+) 17.Qb2 (17.Qa1 Nc6 18.Qa5 Na5 19.Ra1–+) 17...Rf1 (better is 17...Nf1 18.Bf1 Qe1 19.Qa1 Qa1 20.h3–+) 18.Bf1 c3 19.Qb3 (19.Qc1 Nf1 20.Qf1 e5–+) 19...Qa1 (better is 19...Nb3 20.cb3 c2 21.e4–+) 20.Qb5 Bd7 21.Qd3 Nc6 22.e4 Ne5 23.Qe2 Nec4 24.ed5 e5 (better is 24...Qf1!? 25.Qf1 Nf1 26.de6–+) 25.Bd2 (25...cd2 26.c3–+; 25.Be3–+) –+. TIROLOCO – PussBucket, Live Game Caissa's Web, 2004.

6.Nf3 Be7 7.c4 (7.Be2 0–0=) 7...0–0=+ 8.Qc2 (8.d4 b6=+) 8...ab5 (8...b6 9.cd5 Nd5 10.Bd3=+) 9.ab5= Ra1 10.Ba1 Nbd7 11.Be2 Qc7 (11...dc4 12.0–0=) 12.d4 (12.0–0 Bd6=) 12...Ne4 (12...cd4!? 13.Bd4 e5=+) 13.0–0+= b6 14.Nc3 (14.Bd3 Bb7+=) 14...Ndf6 (14...Bb7 15.cd5 ed5 16.dc5 Ndc5 17.Rc1=) 15.cd5 (15.dc5 Nc5 16.cd5 ed5+=) 15...Nc3= 16.Qc3 ed5 17.dc5 bc5 18.Rd1 Rd8 19.Rd4 Bf8 20.Bd3 Qe7 21.Ra4= c4 22.Bc2 Qc5 23.Qa5+= Qe7 24.Bc3 Ne4 25.Bb4 Qf6 26.Nd4?? Qf2 (27.Kh1 Qf1#) 0–1. Kleinke – Bluhm, Schwerin, 1978.

6.Nf3 Bd6

7.a5 =+.

7.c4 0–0 8.Nc3 Re8 9.Be2 Nbd7 10.0–0 Qc7 11.cd5 ed5 12.a5 Qd8 13.d4 c4 14.b6 Bb4 15.Qc2 Bc3 16.Qc3 Ne4 17.Qb4 Nf8 18.Ne5 f6 19.Nc4 dc4 20.Bc4 Be6 21.d5 Bf7 (21...Bd5? 22.Rfd1 Bc4 23.Rd8 Rad8 24.Qc4 Kh8 25.Ba3+–) 22.Rac1 Qd6 (22...Rc8 23.Bb3+=) 23.Ba3= Rad8 24.f3 Qb4 25.Bb4 Nd6 (worse is 25...Bd5 26.fe4 Bc4 27.Rc4+/–) 26.Bd6 Rd6 27.e4 f5 28.Bd3 Nd7 29.Rc7 Kf8 30.Rfc1 Ne5 31.Be2 Rb8 32.Kf2+= Rdd8 33.Ke3 h6 34.Kd4 Ng6 35.g3 h5 36.Rd1 h4 37.g4 Nf4 38.Bc4 fe4 39.fe4 g5 40.Ke5 Kg8? 41.Kf5+– Ng2 42.Rd2 Ne3 43.Kg5 Rd6 44.Bd3 Rg6 45.Kf4 Ng4 46.e5 Rg7 47.e6 Bh5 48.e7 Nf6 49.d6 1–0. Szabo,Almos (2305) – Dikmen,Ali (2320), Romania – Turkey, 2006.

7.c4 0–0 8.Be2 Nbd7 9.0–0 b6 10.d3 Bb7 11.Nbd2 Qe7 12.Qb1 Rfe8 13.Rd1 a5 14.Qc2 Rad8 15.Rac1 e5 16.cd5 Nd5 17.Nc4 Bc7 18.e4 Nf4 19.g3 Nh3 20.Kg2 Ng5 21.Ne3 Bb8 22.Qc4 Nf3 23.Bf3 Nf8 24.Rd2 Ne6 25.h4 g6 26.Nd5 Bd5 27.ed5 Nc7 28.Re1 Qd6 29.Rde2 f6 30.h5 Kg7 31.hg6 hg6 32.Qg4 Nd5 33.Be4 Ne7 34.f4 Qd7 35.Qd7 Rd7 36.fe5 Be5 37.Be5 fe5 38.Bf3 Rf8 39.Re5 Nf5 40.Bd5 Rfd8 41.Be4 Nd4 42.Rf1 Nc2 43.Rf4 Ne1–/+ 44.Kh3 Nd3 45.Bd3 Rd3 46.Re7 Kh6 47.Re6 R8d6 48.Rff6 Re6 49.Re6 Rd4 50.Rb6 Ra4 51.Rc6 c4 52.b6 Rb4 53.b7 Rb7 54.Rc4 Rb4 55.Rc5 a4 56.Ra5 g5 57.Ra8 Kg6 58.Rf8 Rc4 59.Ra8 Kf6 60.Ra5 g4 61.Kh4 Ke6 62.Kg5 Kd6 63.Kf6 Kc6 64.Ke6 Kb6 65.Ra8 Kc5 66.Ke5 Kb4 67.Kd5? Kb3 68.Ra7 Rc3 69.Rb7 Ka3 70.Rb1 Rg3 71.Kc4 Ka2 72.Re1 a3 73.Re2 Kb1 74.Re1 Kc2 75.Re2 Kd1 76.Ra2 Rf3 77.Kd4 g3 78.Ke4 Rc3 79.Kd4 Rb3 80.Kc4 Rb2 81.Ra3 g2 82.Kd3 g1Q (82...g1Q 83.Ra1 Rb1 84.Rb1) 0–1. Lortkipanidze,N (2210) – Azaladze,S (2440), 5th Nana Aleksandria Cup, Poti GEO, 2010.

7.Be2 Nbd7 8.Nc3 a5 9.d3 Qc7 10.Qd2 b6 11.e4 Bb7 12.Qg5 h6 13.Qh4 0–0–0 14.Nd2 Bf4 15.Rd1 Ne5 16.f3 g5 17.Qf2 d4 18.Na2 Be3 19.Qf1 Nh5 20.Rc1 f5 21.g3 fe4 22.fe4 g4 23.Qg2 Rhf8 24.Rf1 Rf1 25.Qf1 Qg7 26.c4 Rf8 27.Qh1 Bd2 28.Kd2 Qg5 29.Kc2 Qe3 30.Re1 Rf2 31.Kd1 Nd3 32.Bc1 Nc1 33.Nc1 Be4 34.Qg1 Qc3 (35.Nd3 Bd3 36.Qf2 Qc2#) 0–1. Hallila,Erkki – Auvinen,Hannu, corr Tch–SF, 1992.

7.c4 Nbd7

8.Be2 b6

9.0–0= 0–0 10.Nc3 =.

9.0–0= ab5 10.ab5 (10.cd5 A) worse is 10...Nd5 11.Bg7 (worse is 11.ab5 Ra1 12.Ba1 0–0=; worse is 11.Bb5 0–0=) 11...Rg8 12.ab5+/–; B) 10...ed5 11.Bb5 0–0=) 10...Ra1 11.Ba1 Bb7 12.Nc3 (12.d4 0–0=) 12...0–0 (12...dc4 13.Bc4 0–0 14.d3+=) 13.Qb3 (13.cd5 Nd5 14.Nd5 Bd5=) 13...d4 (13...dc4 14.Qc4 Bf3 15.Bf3+=) 14.ed4= cd4 15.Nd4 Nc5 16.Qd1 (16.Qc2 Bh2 17.Kh2 Qd4=) 16...Bh2 17.Kh2 Qd4 18.Kg1 (18.f4 Qd6=) 18...Nfe4 The backward pawn on d2 becomes a target (18...Nd3 19.Bd3 Qd3 20.Qe2+=) 19.Ne4 (19.Na4 Qd8 20.Nc5 Nc5=) 19...Qe4 Threatening mate... how? 20.f3 Qf4 21.Qc2 (21.Qc1 e5=) 21...f6 (21...e5 22.Qc3 f6 23.d4 ed4 24.Qd4=) 22.Qc3 e5 23.d4 White launches an attack 23...ed4 24.Qd4 Qc7 (24...Qg5 25.Rd1=) 25.Rd1 (25.Qf2 Ne6=) 25...Qe7 (25...Re8 26.Bf1=) 26.Bf1 Re8 27.Bc3 Qe3 28.Qe3+/– Re3 29.Bb4 Kf7 30.Kf2 Re7 31.Rd8 Rd7 32.Rd7 Nd7+= 33.Bd6 f5 34.Bc7 Kf6 35.Bd3 Ne5 36.Be2 Nd7+= 37.Ke3 h6+/– 38.Kd4 Ke6 39.Bb6 Nb6= 40.c5 Nc8 41.Bc4 Kd7 42.Ke5+= Ne7 43.Be6 Kc7 44.Bf5 Nf5 45.Kf5+/– ½–½. Urbanec,Miroslav – Nevole,Vladimir, corr ch CZE, 1968.

9.Qb3 a5 10.Nc3= Bb7 (10...dc4 11.Qc4 Bb7=) 11.0–0–0 (11.cd5 Nd5 12.Rc1 Nb4=) 11...dc4 (11...0–0 12.Kb1+=) 12.Bc4 (12.Qc4 0–0+=) 12...Qe7 13.h3 (13.d3 0–0+=) 13...0–0–0 (13...0–0 14.Qc2+=) 14.d3 Ne5 15.e4 (15.Ne5 Be5 16.Rhg1 Bh2=) 15...Kb8 (15...Nf3 16.gf3 Kb8 17.Ne2+=) 16.Ne5 Be5 17.g4 (17.Ne2 Bb2 18.Qb2 e5+=) 17...Bd4 (17...g5 18.Ne2 Nd7 19.Kb1+=) 18.Rhf1 (18.Qc2 g5+=) 18...Nd7 (18...h5 19.g5 Nd5 20.ed5 ed5 21.Nd5 Bd5 22.h4 Bc4 23.dc4–/+) 19.Kb1 (19.f4 h5+=) 19...Ne5 (19...Qh4 20.Ne2 Bf6 21.f3+=) 20.f4 Nc4 21.Qc4 Qh4 (21...Rd6 22.Ne2 Bb2 23.Kb2+=) 22.Rf3= h5 (22...Rd6 23.Ne2=) 23.g5 ½–½. Green,SL – Gardner,A, corr BCCC (year?).

9.Qb3 ab5 10.Qb5 Qc7 11.cd5 Nd5 12.Qb3 +=.

9.Nc3 0–0 10.cd5 ed5 11.0–0 Re8 12.ba6 Ba6 13.Nb5 Qe7 14.Re1 Bb8 15.d3 (15.Qc2 Ne5=) 15...Bb7 (15...Ne5 16.Bc3=) 16.Bc3 Ne5 17.Qc2 Bc6 (17...Nf3 18.Bf3 (< 18.gf3 d4 19.ed4 Nd5–/+) 18...Qe6 19.h3=) 18.Ne5 Be5 19.d4 Bb8 20.dc5 Ne4 21.Nd6 (21.cb6? Bh2 22.Kf1 Bb5 23.Bb5 Rec8–+) 21...bc5 22.Ne4 de4 23.Red1 Qc7 24.g3 Qe7 25.Bb5 Qe6 26.Qb2 f6 27.a5 Bc7 28.Bc6 Qc6 29.Qa2 Re6 30.Qc4 Kh8 31.Rd5 Bd6 32.Rb1 Qe8 33.Rb6 Bf8 34.Re6 Qe6 35.Rc5! Qg4 36.Qd5 Rb8 37.Rb5 Rc8 38.Bb2 Qe2 39.Qf5 Ra8 40.Kg2 (40...Qc4 41.Rb6+/–; 40.Qe4 Rd8 41.Rd5 Rd5 42.Qd5 Qb2+/–) 1–0. marekt – Vautrin, ChessWorld.net, 2004.

9.d3 0–0 10.ba6 Ba6 11.Na3 +=.

9.d3 0–0 10.Nc3 =.

9.d3 ab5 10.ab5+= Ra1 11.Ba1 0–0 12.0–0 (12.Nbd2 Bb7=) 12...Bb7+= 13.Nbd2 Qc7 14.h3 (14.cd5 ed5 15.Bc3 Ra8+=) 14...Ra8+= 15.Qc2 Ne5 (15...e5 16.e4 d4 17.Nb3+=) 16.Rc1= Qb8 (16...Nfd7 17.Ne5 Be5 18.d4 cd4 19.Bd4 Bd4 20.ed4+=) 17.Ne5 Be5 18.Be5 Qe5 19.cd5 (19.d4 cd4 20.Nf3 Qd6 21.Nd4 e5=) 19...Nd5 (19...Bd5 20.Nf3 Qb8 21.Qd1+=) 20.Nc4 (20.d4 cd4 21.Nf3 Qd6 22.Nd4 Ra3+=) 20…Qg5 (20...Qg5 21.Bf3 Ra7=; 20...Qf6 21.Nd6 Nb4 22.Qc3=). Kasper – Schulze, corr, 1975.

9.d3 Qc7 10.h3 (10.Na3 0–0=) 10...dc4 11.dc4 Bb7 (11...0–0 12.Nc3=) 12.Nc3 0–0 (12...a5 13.0–0=) 13.ba6 Ba6 14.Nb5 (14.0–0 Rfd8=) 14...Bb5+= 15.ab5 Rfd8 (15...Ra1 16.Qa1 e5 17.0–0=) 16.0–0 Nf8 (16...e5!?=) 17.Qc2 (17.Bf6 gf6 18.Ra8 Ra8+=) 17...Ng6 (17...N8d7 18.Ra6+=) 18.Rfd1 (18.Bf6 gf6 19.Ra6 Ra6 20.ba6 Qa7+=) 18...Ra1+= 19.Ra1 Nd7 20.Rd1 h6 (20...Nde5 21.Nd2+=) 21.Qc3 (21.Qe4 Nf6 22.Qc6 Qc6 23.bc6 Kf8+=) 21...e5 (21...Nf6 22.Bd3+/–) 22.Bd3 Ndf8 23.Be4 f6 24.Bd5 Kh8 25.Qd3 (25.Qc2 Ne7+/–) 25...Ne7 26.Be4 Kg8 27.Nh4 Kh8 28.Ra1 Kg8 29.Nf5 Nf5 30.Bd5 Kh8 31.Qf5 Be7 32.h4 g6 33.Qe4 Bd6 34.Ra6 h5 35.f4 Kg7 36.f5 Rb8 37.Qf3 gf5 38.Qf5 Qd7? 39.Qd7 Nd7 40.Ra7 (40.Ra7 Rd8 41.Be6+–) 1–0. Kilpatrick,Robert – Sadowski,ZE, corr SCCA, 1988.

9.d4 0–0 10.0–0 +=.

9.d4 Qc7 10.Nbd2 (10.dc5 Bc5 11.cd5 Nd5=) 10...Bb7 (10...0–0 11.dc5 Qc5 12.cd5 Nd5 13.0–0+=) 11.Rc1 (11.dc5 bc5 12.0–0 ab5 13.cd5 ba4 14.de6 fe6 15.Ra4 0–0=) 11...ab5 12.ab5 (12.dc5 bc5 13.ab5 0–0+=) 12...0–0+= 13.h3 (13.dc5 bc5 14.cd5 ed5=) 13...Ra2 14.Qb3 (14.dc5 bc5 (14...Qc5? 15.cd5 Rb2 16.Rc5 Bc5 17.de6 fe6 18.Qa1+–) 15.Rc2 Rfa8+=) 14...Rfa8–/+ 15.0–0 cd4 16.Bd4 (16.ed4 Bf4–/+) 16...Nc5 (16...e5 17.cd5 Qb8 18.Bc3+=) 17.Qb1 e5 18.Bb2 Qe7 Black intends e4 (18...R8a7 19.Rfd1+=) 19.cd5 Bd5 (19...Nd5 20.Bc4 R2a7 21.Qf5=) 20.Bc4= Rb2 (better is 20...R2a5!?=) 21.Qb2+/– e4 22.Nh2 (22.Nd4 Qe5 23.g3 Nd3 24.Bd3 Ba3 25.Qa3 Ra3 26.Rc8 Ne8 27.Be4 Kf8 28.Bd5 Qd5+–) 22...Rd8 (22...Bc4 23.Rc4 Rd8 24.Ng4 Ng4 25.hg4+=) 23.Nb3 (23.Rcd1!?+=) 23...Nd3= 24.Bd3 Ba3 25.Qc3 Bc1 (worse is 25...ed3 26.Rcd1 (worse is 26.Qd3 Bc1 27.Rc1 Bg2–/+) 26...Be4 27.Nd4+/–) 26.Rc1 Bb3 27.Be4+/– Ne4 28.Qb3 Nc5 29.Qc4 Rd2 30.Nf3 Rb2 31.Ra1 h6 32.Qd5 Kh7 33.Qf5 g6 34.Qc8 h5 35.Ra8 Qf6?? 36.Ng5!! Kh6 37.Nf7!! Kh7 38.Qg8# 1–0. Sokolski – Usov, Odessa, 1960.

6.Nf3 Nbd7

7.ba6 ba6 8.Nc3 e5 =+.

7.c4 Nb6 8.Qc2 Bd7 9.Ne5 dc4 10.Bc4 Nc4=+ 11.Qc4 Be7 12.0–0 0–0 13.Nc3 Qc7 14.Ne2 ½–½. Labahn,Wolfgang – Schlicht,K, Jugend–BEMS, 1989.

7.c4 Bd6 8.cd5 ed5 9.ba6 ba6 10.Nc3 =+.

7.Be2 Bd6 8.0–0 0–0 9.c4 Qc7 10.d3 dc4 11.dc4 ab5 (11...e5 12.h3+=) 12.ab5 (12.Nc3!? Qb8 13.Nb5+=) 12...Ra1+= 13.Ba1 b6 14.Nbd2 Bb7 15.Qc2 Ra8 16.Rd1 h6 17.Qb2 (17.Bc3 Ng4 18.h3 Nge5+=) 17...Re8 (17...e5 18.Nh4+=) 18.g4 (18.e4 Bf4=) 18...Ba8 (18...e5 19.Nh4+=) 19.h4 White plans g5 19...Qb7 (19...e5 20.g5 e4 21.Ne1=) 20.g5= hg5 21.Kg2?? (better is 21.hg5 Nh5 22.Qc2+=) 21...g4–+ 22.Rg1 (22.Qc2 Qc7–+) 22...Be5 23.Qb1 Qc7 24.Kf1 gf3 25.Bd3 Ba1 26.Qa1 Qd6 27.Qa3 Ne5 0–1. Funtikov,Mikhail – Mamedov,A (2090), IV Geller Memorial, Odessa UKR, 2008.

5.a4 c6

6.ba6 Na6 7.Nf3 Nc5 8.Ba3 (8.Bd4!?=+) 8...Ra4 9.Bc5 (better is 9.Bb2–/+) 9...Ra1–+ 10.Bf8 Rf8 (10...Kf8 11.c3–+) 11.Nd4 (11.Bd3 Rg8–+) 11...Qb6 (11...Rg8!? 12.Nb3 Ra8 13.d4–+) 12.Nb3 Ra8 13.Nc3 c5 14.Bb5 Bd7 15.Bd7 Nd7 16.0–0 Ke7 (16...Rg8 17.f4–+) 17.Qh5 h6 18.Qg4 g6 19.Qh4 Nf6 20.Qh6 (20.f3!?–/+) 20...Qc7 21.Qg5 c4 22.Nd4 Qa5 (better is 22...Rh8 23.f4 Rh5–/+) 23.e4 Qa1? (23...de4 24.Ndb5 Rfd8+/–) 24.e5+– Kd7 25.Qf6 Rh8 (25...Qb2+–) 26.Qf7 Kc8 27.Qe6 Kc7 28.Nd5 Kb8 29.Qd6 (29…Ka7 30.Ra1#) 1–0. MasterofDisaster – binda, Live Game Caissa's Web, 2004.

6.Nc3 ab5 7.ab5 Bd6?? (better is 7...Ra1 8.Ba1 e5=) 8.Ra8+– 1–0. gtate (1815) – rhand (2050), net–chess.com, 2002.

6.Nc3 Bd7 7.bc6 (7.f4 Bc5=) 7...Nc6=+ 8.Nf3 Be7 9.Be2 0–0 10.0–0 Rc8 11.Qc1 h6 (11...e5 12.Ba3=+) 12.Ba3 Re8 13.Rb1 Rb8 14.Be7 Qe7 15.Qb2 (15.d4 Qd6=) 15...e5 16.d3 (16.Qb6 Rec8=+) 16...Qd6 17.e4 (17.Qb6!?=+) 17...d4–/+ 18.Nd1 Be6 (18...b5 19.ab5 Rb5 20.Qc1–/+) 19.c3 dc3 20.Nc3 Nd4 (20...Rec8 21.Rfc1–/+) 21.Qb6 (21.Nd4 Qd4 22.Nd1 Red8=+) 21...Qb6 22.Rb6 Rec8 (better is 22...Red8–/+) 23.Rc1?? (better is 23.Nd4 ed4 24.Nb1=+) 23...Rc3!–+ 24.Re1 Ne2 25.Re2 Rd3 26.Re1 Nd7 27.Rb4 Rb3 28.Rb1 Rb1 29.Rb1 f6 (30.Rc1 b6–+) 0–1. Acevedo,Daiana – Hidalgo,Silvana, Buenos Aires Najdorf op U14, 2001.

6.Nc3 e5 7.Nf3 Bd6 8.Be2 =+.

6.Nc3 Be7 7.Nf3 0–0 8.Bd3 c5 9.Nb1 (9.0–0 b6=) 9...c4=+ 10.Be2 ab5 11.ab5 Ra1 12.Ba1 Bb4 (12...Nbd7 13.Bd4=+) 13.Nc3 Nbd7 14.0–0 Qe7 (14...Qa5 15.Nd4=+) 15.d3= Nb6 16.Qb1 (16.Na2 Bc5=) 16...Bd7 17.Ne5 Rc8 18.Na2 Bd6 19.Nd7 Nfd7 20.f4 f6 21.Rf3 e5 22.f5 Kh8 23.Rh3 Kg8 (23...cd3 24.cd3 Kg8 25.Qd1=+) 24.Qe1 (24.Rf3 e4 25.de4 de4=+) 24...Nf8 (better is 24...cd3 25.cd3 Rc2=+) 25.Nc3? (25.dc4 Nc4 26.Nc3 Nb6=) 25...Bb4 (25...cd3 26.cd3 Bb4=+) 26.Qf1?? (26.dc4 Qc5 (26...dc4?! 27.Qb1=) 27.Qf1 Bc3 28.Bc3 Nc4–/+) 26...Qd7 27.Nd1 Qb5–/+ 28.Nf2 c3 29.Ng4 Qd7 30.Qf2? Kh8 31.d4 e4 32.Rh5 Ra8 33.Bc3?? Bc3–+ 34.Qh4 Ra1 35.Kf2 Be1 (36.Kg1 Bh4 37.Bf1 Qb5 38.Rh7 Kh7 39.Nf6 Bf6 40.c4 Qc4 41.h3 Rf1 42.Kh2 Qc7 43.g3 Qc2#) 0–1. Harders,Walter – Suhr,Wolfram, Schleswig Holstein–chE, 1989.

6.c4 cb5 7.ab5 Qb6 8.d4 (8.Bf6 gf6 9.cd5 Bb4+/–) 8...Bb4 (8...dc4!? 9.Bc4 Nc6+=) 9.Bc3+/– Ng8?? (better is 9...Be7+/–) 10.Bb4+– 1–0. Fritz11 – jumbo, casual, 2013.

6.c4 Qb6 7.Nc3 (7.Bf6 gf6 8.ba6 Na6 9.cd5 ed5=) 7...Bd7 (7...dc4 8.Bc4 Bd6 9.Nf3=) 8.a5 Qd8 9.b6 Bd6 (9...Bb4 10.Qb3 Qe7 11.Ba3=) 10.Nf3 (10.d4 dc4 11.Bc4 Nd5+=) 10...Qe7 (10...0–0 11.d4+=) 11.Be2 (11.d4 dc4 12.Bc4 0–0+=) 11...0–0 12.d4 dc4 13.0–0 (13.Bc4 c5=) 13...Bc8 (13...c5!?=) 14.Bc4+= Nbd7 (14...c5 15.dc5 Bc5 16.Ne5+=) 15.Qc2 e5 (15...Rd8 16.Bd3+=) 16.Ne4 (16.Rfe1 Rb8+/–) 16...Ne4+= 17.Qe4 Nf6 18.Qh4 e4 19.Ne5 Be6 20.Rfd1 Rad8 21.h3 Rfe8 22.Be2 Bd5 23.Qg5 h6 24.Qh4 Nd7 25.Qe7 Be7 26.Nc4 Nf6 27.Ba3+= Ba3 28.Ra3 g6 29.Nb2 Kg7 30.Na4 Nd7 31.Rc3 Re7 32.f3 f5= 33.Kf2 Nf8 34.Nc5+/– Ne6 35.Nb7 Rb7 36.Ba6 Rbb8 37.Be2 f4 38.fe4 Be4 39.Bc4 c5?? 40.Be6+– fe3 41.Re3 Bc2 42.dc5 Bd1? 43.c6 Rf8 44.Ke1 Ba4 45.c7 Rbe8 46.b7 (46...Bc6 47.c8Q Rc8 48.bc8Q Rc8 49.Bc8+–) 1–0. Michalke,Markus – Ertl,Hans Adolf, VK Gr1, 1999.

6.c4 Ne4 7.Nf3 (7.Nc3 Nc3 8.Bc3 dc4 9.Bc4 Qg5+=) 7...Bd7 (7...ab5 8.ab5 Ra1 9.Ba1 cb5 10.cb5=) 8.Nc3 Nc3 9.Bc3 f6 (9...ab5 10.ab5 Ra1 11.Qa1=) 10.Qb3 (10.bc6 Nc6 11.cd5 ed5+=) 10...ab5 11.ab5 Ra1 12.Ba1 Bd6 13.d4 Qc7 (13...cb5 14.c5 Be7 15.Bd3=) 14.Be2 (14.c5 Be7 15.b6 Qd8+/–) 14...0–0 (14...dc4!? 15.Qc4 cb5 16.Qc7 Bc7=) 15.0–0 (15.c5 Be7 16.b6 Qd8+/–) 15...b6 (15...dc4 16.Bc4 Re8 17.bc6 Nc6 18.Rc1+=) 16.Rb1+/– c5 (16...Be8 17.bc6 Bg6 18.Rb2+/–) 17.dc5 Qc5 18.Bd4 Qc7 19.cd5 e5 20.Bb2 Be8 21.Ba3 Bf7+/– 22.e4 Nd7 23.Nd2 Ra8 24.Bd6+– Qd6 25.Nc4 Qc7 26.Qe3 Rd8 27.f3 f5 28.Rc1 f4 29.Qd2 Qc5 30.Kh1 Rc8 31.Ra1 g5 32.h3 Kg7 33.Qb2 Kf6 34.Kh2 h5 35.Bd3 g4 36.fg4 hg4 37.h4 Nf8?? 38.Qe5+– (38...Kg6 39.Qh8 Qc4 40.h5 Kg5 41.Bc4 g3 42.Kg1 Rc4 43.Qf8 Bd5 44.Qf5 Kh4 45.ed5+–) 1–0. katchum (2190) – wlittle (2315), net–chess.com, 2003.

6.d4 Be7 7.Nd2 0–0 8.Ngf3 Qc7 9.c4 c5 10.Rc1 b6 (11.dc5 bc5 12.cd5 ed5 13.Bf6 Bf6+=) +=. San Martin Perez,S – Garcia McIvor,I, Pasao, 1998.

6.Be2 b6 7.Nf3 Bd6 8.0–0 0–0 9.Ne5 Bb7 10.f4 Qc7 =.

6.Be2 Bd6 7.Nf3 0–0 8.0–0 Nbd7 9.d4 ab5 10.ab5= Ra1 =.

6.Nf3 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.Nf3).

6.Nf3 b6 7.Ne5 Bb7 8.Be2 Bb4 9.0–0 0–0 10.Nc3 Bd6 =.

6.Nf3 Bc5 7.Be2 0–0 8.0–0 Nbd7 9.d4 Bd6 10.c4 dc4 11.bc6 bc6 12.Nbd2 Nb6 13.Qc2 Nfd5 14.a5 Nd7 (14...Nb4 15.Qc1 N6d5 16.Nc4+=) 15.Nc4+/– Be7 16.Nce5 Nb4 17.Qc3 Nd5 (17...Rb8 18.Rfb1+/–) 18.Qc4 Ne5 19.Ne5 Bd7 (19...Bd6 20.Ba3 Bb7 21.Rfc1+/– (21.Nc6?! Bh2 22.Kh2 Qh4 23.Kg1 Rfc8=)) 20.Rfc1 f6 (better is 20...Rb8 21.Rab1 Rb5+/–) 21.Nd7+– Qd7 22.Qc6 Qd8 23.Qe6 Kh8 24.Bf3 Nc7 25.Qb6 Nb5 26.Ba8 Qa8 27.Rc6 h6 28.Qa6 Qb8 29.Rb6 Nc7 30.Rb8 Na6 31.Rb7 Bd8 32.Rc1 1–0. pierred – csibi, ChessWorld.net, 2005.

6.Nf3 Nbd7 7.Be2 Bd6 8.0–0 0–0 9.c4 Qc7 10.g3 (10.cd5 ed5 11.Qc2 Re8=) 10...Ne5 (10...dc4 11.bc6 Qc6 12.Na3+=) 11.d3 (better is 11.Be5!? Be5 12.b6+=) 11...Nf3+= 12.Bf3 Bd7 (12...ab5 13.ab5 Ra1 14.Ba1+=) 13.Nc3 (13.Bf6 gf6 14.bc6 bc6+= (worse is 14...Qc6 15.cd5 ed5 16.Qb3+/–)) 13...Be7 14.Re1 h6 15.Bg2 Bb4 16.Qb3 Be7 17.b6 Qd8 18.a5 Qc8 19.f4 Re8 20.Ne2 Qb8 21.e4 de4 22.de4 Nh7 (22...Bc5!? 23.Kh1 Ng4+=) 23.Rad1+/– Qc8 24.Qc3 e5 (24...Bc5 25.Kh1 Nf6 26.Rf1+/–) 25.fe5 (25.Qe5 Nf6 26.Qc7 Be6+/–) 25...f6? (better is 25...Bg4!?+/–) 26.c5+– fe5 27.Rf1 (better is 27.Qe5!? Nf6 28.Rd2+–) 27...Bf6 28.Kh1 Bh3 29.Ng1 Bg2 30.Kg2 Ng5 31.h4 Ne6 32.Nf3 Rd8 33.Ne5 Rd1 34.Rd1 Qb8?? 35.Qb3 Qe8 36.Rd6 Rd8 37.Qe6 Qe6 38.Re6 Rd2 39.Kf3 Rb2 40.Re8 Kh7 41.Nd7 Rb3 42.Kf4 Kg6 43.Nf6 Kf6 44.g4?? Kg6 45.Ke5 Rf3 46.Re6 Kh7 47.Kd6 1–0. Starr,Albert Martin – Braden,Brian, San Francisco Summer TNM, 2005.

6.Nf3 g6 7.d3 (7.Be2 Bg7=) 7...Bg7 8.Nbd2 (8.Nc3 0–0=) 8...0–0 (8...Bd7 9.ba6 Na6 10.Be5=) 9.Rc1 (9.e4 ab5 10.ab5 Ra1 11.Qa1 cb5=) 9...Bd7 (9...ab5 10.ab5 cb5 11.Ra1 Ra1 12.Qa1=+) 10.c4= cb5 11.cb5 (11.ab5 ab5 12.cd5 ed5=) 11...Bc8 (11...ab5!? 12.ab5 Bb5=+) 12.Nb3 (12.ba6 Ra6 13.d4 Ra8=) 12...Qe7 (12...ab5 13.ab5 Bd7 14.d4=) 13.Nfd2 (13.Bf6 Bf6 14.d4 Nd7=) 13...b6 (13...ab5 14.ab5 Bd7 15.Bf6 Bf6 16.d4=) 14.Rc3 (14.Qf3 ab5 15.ab5 e5=) 14...Nbd7 (14...Bd7 15.Nd4 ab5 16.Nb5 Bb5 17.ab5=+) 15.Nd4= Nc5 (15...ab5 16.Nc6 Qd6 17.ab5=) 16.Ba3 (16.Nc6 Qd7=) 16...Nfd7 (16...e5 17.Nc6 Qd6 18.Be2=) 17.Nc6 Qd6 (17...Qf6 18.d4 ab5 19.ab5 Re8+=) 18.d4+/– Re8? (better is 18...Bb7!? 19.Nb4 ab5 20.Bb5 Rfd8+/–) 19.dc5+– Nc5 20.Rc1 e5?? 21.Ne4! Qe6 22.Nc5 bc5 23.Rc5 d4 24.Bc4 Qf5 25.Rd5 Be6 26.Ne7 Re7 27.Be7 Bd5 28.Bd5 e4 29.Ba8 (29...ab5 30.Bb4+–) 1–0. Meybohm,Dirk – Lesse, corr (year?).

6.c4 ab5

7.ab5 Ra1 8.Ba1 dc4 9.Bc4 Bd6 =.

7.cb5 Bb4 8.Be2 0–0 9.Nf3 Nbd7 (9...c5 10.0–0=) 10.bc6 bc6 11.0–0 Qc7 12.Qc2 Ba6 13.Ba6 Ra6 14.Rc1 Rfa8 15.Nc3 Bc3 16.Bc3 Ne4 17.Bb2 Ndf6 (17...Ra5 18.Qc6 Qc6 19.Rc6 Ra4 20.Ra4 Ra4 21.Rc8 Nf8 22.Ne5+=) 18.Be5+= Qd7 19.d3 Nd6 20.Nd4 c5 (20...Ng4 21.Nc6 f6 22.Bd6 Qd6 23.g3+/–) 21.Qc5+/– Rc8 (21...Nb7 22.Qc7 Qc7 23.Rc7+– (23.Bc7?! Ra4 24.Ra4 Ra4+=)) 22.Qb4 Rc1 23.Rc1 Nc8?? (better is 23...Nde8 24.a5 Ng4+–) 24.Qb8 Rb6 (24...h6 25.Bf6 Kh7 26.Rc8 Qa4+–) 25.Rc8 Ne8 26.Re8 (26...Qe8 27.Qe8#) 1–0. Fritz 10 – nn, internet, 2007.

7.cb5 cb5 8.Bb5 Bd7 9.Nc3 Nc6 10.Nge2 Bd6 11.0–0 Ne5 (11...0–0 12.d4+=) 12.d4 Bb5?? (better is 12...Nc4 13.Bc4 dc4=) 13.de5+– Be2 (13...Be5 14.ab5 0–0 15.Ra8 Qa8 16.Qd3+–) 14.Ne2 Be7 15.ef6 Bf6 16.Bf6 Qf6 17.Qd4 (17.Qb3!? 0–0+–) 17...Qd4 18.Nd4 Kd7 19.Rfb1 Rhb8 20.g4 g6 21.Kg2 f5 (21...f6 22.a5+–) 22.gf5 gf5 23.h3 (23.Rb6 Ra6 24.Rab1 e5 25.Nf5 Rb6 26.Rb6 Rf8+–) 23...Ke7 (23...Ra6 24.Rb4+–) 24.Rb6 Ra6 25.Ra6 ba6 (25...Rg8 26.Kf3 ba6+–) 26.Nc6 (26.Nc6 Kd6 27.Nb8+–) 1–0. Petukhov,Nikolay (1800) – Zuev,Ilja, Moscow Open E, 2011.

7.cb5 c5 8.Be2 Bd6 9.f4 0–0 10.Nf3 Nbd7 11.0–0 Qc7 12.Bc3 (12.Qc2 Re8=+) 12...e5 (12...Ne4 13.Qc2=+) 13.b6= Qb6?? (better is 13...Qb8 14.fe5 Ne5 15.Be5 Be5 16.Ne5 Qe5=+) 14.fe5+– d4 15.a5 Qa7 16.ed4 cd4 17.Bd4 Bc5 18.Bc5 Qc5 19.d4 Qa7 20.ef6 Nf6 21.Nc3 Be6 22.Ng5 Bd5 23.Rf6 gf6 24.Nh7! Kh7 25.Qd3 Kg7 26.Qg3 Kh8 27.Qh4 Kg7 28.Nd5 Rh8 29.Qf6 Kf8 30.Qh8# 1–0. b4_player – opponent, gamecolony.com, 2007.

7.cb5 Bd6 8.Nf3 0–0 9.Be2 =. pierred (2760) – aisaba (2000), net–chess.com, 2008.

7.cb5 Bd6 8.Nf3 c5 9.Be5 =+.

7.cb5 Bd7 8.Nc3 Bb4 9.Nf3= c5 (9...0–0 10.Be2=) 10.Be2 (10.Qc2 Qe7=) 10...Qc7 (10...0–0 11.Qc2=) 11.0–0 (11.Na2 Ba5=) 11...c4 (11...e5 12.Na2 e4 13.Nh4=) 12.Qc1 (12.d3 Qa5 13.Rc1 cd3 14.Qd3 0–0+=) 12...Bd6 13.h3 (13.d3!? cd3 14.Bd3=) 13...e5=+ 14.d3 (better is 14.Qc2=+) 14...e4?? (14...cd3 15.Bd3 e4 16.Nd5 A) < 16...Nd5 17.Be4 Be6 18.Qc7 Bc7 19.Rfd1+/– (19.Bg7?! Rg8 20.Bb2 f5=); B) 16...Qc1 17.Rfc1 ed3=) 15.de4+/– de4 16.Nd2 Be6 (16...Bf5!?+/–) 17.Nce4+– Ne4 18.Ne4 Be7 (18...Bh2 19.Kh1 Be5 20.b6+–) 19.Bg7 Rg8 20.Qc3 Nd7 21.Rfd1 Bb4?? 22.Rd7 Bc3 23.Rc7 Bg7 24.Rd1 Be5 25.Rb7 Ra4? 26.Nc5 Ra8?? 27.Ne6 fe6 28.Bh5 Kf8 29.f4 Bf6 30.Rf7 (30...Ke8 31.Rh7 Rg6 32.Bg6 Kf8 33.Rf7 Kg8 34.Rf6+–) 1–0. mtr – flatnose, internet, 2001.

7.cb5 Bd7 8.Nc3 Bd6 9.bc6 Nc6 10.Nb5 =+.

7.cb5 Bd7 8.Nf3 Bd6 =.

7.cb5 Be7 8.Nf3 0–0 9.Be5 =+.

7.cb5 Be7 8.Nf3 cb5 9.ab5 Ra1 10.Ba1 Nbd7 11.Be2 0–0 12.0–0 Nc5 (12...Bd6 13.Bd4=) 13.d4 (13.Bf6 Bf6 14.d4 Ne4=) 13...Nce4 14.Nc3 Bd7 15.Qb3 Qa5 16.Ne4 Ne4 17.Rc1 Bb4 18.Rb1 (18.Qd3 Rc8 19.Rc8 Bc8–/+) 18...Bc3 (18...Ra8 19.Qd3=+) 19.Bb2 Rc8 20.Ra1 (20.Ne5 Be8=) 20...Qb4 21.Qb4 Bb4 22.Bd3 f5 (22...Nd6 23.Ra4 Bc3 24.Bc3 Rc3 25.Ra8 Nc8 26.Bf1+=) 23.Rb1 (23.Ne5 Rc7 24.b6+–) 23...Nd6 24.b6 (24.Ba1 Ra8 25.b6 Nc4=) 24...Ba5 (24...Nc4 25.Ba1 Bd6 26.Ne5=+) 25.Ba3 Rc6?? (25...Nc4 26.Bc5 Rc6 27.Rb5 Rc5 28.Rc5 Bb6 29.Rc4 dc4 30.Bc4+=) 26.Bc5?? (26.Ne5 Nc8 27.Rb5 Bb6 28.Nd7 Rc3+–) 26...Kf7?? (26...Nc4!?=) 27.Kf1?? (better is 27.Ne5 Ke7 28.Nc6 Bc6 29.Ra1+–) 27...Rc8?? (better is 27...Kf6+=) 28.Bd6+– Rc3 (28...Bc3 29.Ne5 Ke8 30.Rc1+–) 29.Ke2 (29...Kg8 30.Ne5+–) 1–0. Bittner – Peschke, VM, 1988.

7.cd5 ed5 8.ab5 Ra1 9.Ba1 Bd6 10.Nf3 0–0 11.bc6 Nc6 12.Be2 Qe7 13.Qb3 Ne4 (13...Rd8 14.0–0=) 14.Qd5= Nb4 15.Qb3 Nc5 (15...Be6 16.Qb2 f6 17.d3=+) 16.Qc4 Be6 17.Qc3 f6 18.0–0 Nb3 19.Bc4 Na1 20.Be6 Qe6 21.Qa1 Rc8 22.Nc3 Qc4 23.Rc1 (23.Qa7 Nd5+/–) 23...Nd3+= 24.Rd1 (24.Rb1 Qf7+=) 24...Ne5 (24...Qe6 25.Qb1 Nb4 26.Nd4+/–) 25.Ne5 Be5 26.d4 (26.Qb1 Qg4+/–) 26...Bd6 (26...Qc3 27.Qa2 Qc4 28.Qc4 Rc4 29.de5 fe5 30.f3=) 27.Qa2 (27.Ne4!? Qd5 28.Nd6 Qd6 29.Qb1+–) 27...Qa2+= 28.Na2 Rc2 29.Nc1 b5 30.Kf1 (30.Nb3 Kf7+=) 30...h5 (30...Kf7 31.h3=) 31.Nd3 Rc3 (31...Kf7 32.Rb1 Bh2 33.Rb5+/–) 32.e4+/– b4 33.e5 fe5 34.de5 Be7 35.Nf4 b3 36.Ne2 (36.Nd5 Rc2 37.Ne7 Kf7 38.Nf5+–) 36...Rc2+= 37.Nd4 Rb2 38.Rd3 Rb1 39.Ke2 b2 40.Rb3 Bc5 41.Nb5 ½–½. Wessel,Volkmar – Wink,Arne, Schleswig Holstein–chB, 1989.

6.c4 dc4=+

7.Bc4 ab5 8.ab5 Ra1 9.Ba1 c5 10.Nf3 b6 11.0–0 Be7 12.Nc3 Bb7 13.Ne5 0–0= 14.f4 Nbd7 15.Qb3?? Ne5–+ 16.fe5 Nd5?? 17.Ne2 Nb4 18.d4 Bd5 19.Bc3 Bc4=+ 20.Qc4 Nd5 21.Bd2 Bg5 22.Nf4 cd4 23.ed4= Nf4 24.Bf4 Bf4 25.Rf4 Qd7 26.h4 Rc8 27.Qa4 h6 28.Kh2 Qd5 29.h5 Rc4 30.Qd1 Qc5?? 31.dc5+– (31...Rf4 32.Qd8 Kh7 33.cb6+–) 1–0. Fredek (2065) – kkkramnik, Freundschaftspartie, 5m + 0s, 2006.

7.Bc4 ab5 8.ab5 Ra1 9.Ba1 Bd7 10.Qb3 Be7 11.bc6 ½–½. Spiegel,Matthias – Wittoch,Hans_Joachim (1880), 2. Landesliga Ost, 2001.

7.Bc4 ab5 8.ab5 Ra1 9.Ba1 Be7 10.Nf3 0–0 11.Nc3 Nbd7 12.0–0 Nc5 13.d4+/– Nce4 14.bc6 bc6 15.Qc2 Nc3 16.Bc3 c5 17.dc5 Bc5 18.Bb2 Be7 19.Bd3 Bb7 20.Bf6 Bf6 21.Bh7 Kh8 22.Be4 Qe7 23.Rc1 Rc8?? (better is 23...Rd8+=) 24.Qc8+– Bc8 25.Rc8 Qd8 26.Rd8 Bd8 27.Nd4 Kg8 28.Kf1 Kf8 29.Ke2 Bf6 30.Kd3 Ke7 31.Kc4 Kd6 32.Nb5 Kd7 33.g3 g6 34.Nd4 Kd6 35.h4 e5 (35...Ke5 36.Bc6 Kd6 37.Bf3+–) 36.Nb5 Ke6 37.Bd5 Ke7 38.Kc5 g5 (38...Bh8 39.e4 Kf8 40.Nd6+–) 39.h5 Bg7 40.Nd6 f6 (40...Bf8 41.Nf7 Kf6 42.Kc4+–) 41.h6! Bh8 (41...Bh6 42.Nf5 Double attack (42.Nf5 Decoy)) 42.Nf7 1–0. pierred – anony, internet, 2014.

7.Bc4 cb5 8.ab5 Bd6 9.Qf3 =.

7.Bc4 Qc7 8.Qb3 Nbd7 9.d3 Bd6 =.

7.Bc4 Qc7 8.Qb3 Nbd7 9.d4 cb5 10.ab5 a5 11.Nc3 Bb4 12.Nge2 Nb6 13.Bd3 Nbd5 14.0–0+= Nc3 15.Bc3+/– Nd5 16.Bb4 Nb4 17.Rfc1 Qd6 18.Ra5! Ra5 19.Rc8 Ke7 20.Rh8 Nd3 21.g3 Ra1= 22.Kg2 Ne1 23.Kh3 e5–+ 24.g4?? Qh6 25.Kg3 g5 (26.Qb4 Kd7 27.Qe1 Re1–+) 0–1. Zschalich,Arndt – Schwibbe,Rudolf, corr DDR–ch, 1984.

7.Bc4 Qc7 8.Qb3 Be7 9.Nf3 =.

7.Bc4 Qc7 8.d3 Bd7 =.

7.Bc4 Bd6 8.Nf3 =.

7.Bc4 Be7 8.Nc3 a5 9.Nf3 0–0 10.0–0 Bd7 11.d3+= cb5 12.ab5 b6 13.Ne4 Ne4 14.de4 Qe8 15.Qd4 Bf6 16.e5 Bd8 17.Ba3 Bb5? 18.Bb5+– Qb5 19.Bf8 (19...Nc6 20.Qd6+–) 1–0. Dopper,Johan – Troc,Ryszard, corr 3GMM–07, 1994.

7.Bc4 Be7 8.Nc3 ab5 9.ab5 Ra1 10.Qa1 =.

7.Bc4 Be7 8.bc6 Nc6 9.Nf3 0–0 =+.

6.c4 Bd6

7.d4 =+.

7.Nf3 =+.

6.c4 Bd7

7.Na3 Be7 8.Nf3 0–0 9.Be2 Re8 10.0–0= ab5 11.cb5 Bd6 12.d4 Ne4 13.Qc2 Ng5 14.Nd2 f6 15.f4 Nf7 16.e4 e5 17.fe5+= fe5 18.ed5 ed4 19.Bh5 Bh2+– 20.Kh1 Ne5? 21.Be8 d3? 22.Qc5 Qe8 23.Kh2 cb5 24.ab5 (24...Ra4 25.Kg1+–) 1–0. Labahn,Wolfgang (1700) – Roth,Wolfgang (1900), Bad Lippspr.–Paderborn, 1990.

7.Qb3 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Be7 12.Nf3 Bb5 13.Qb5 Qd7 14.Qd7 Nbd7 15.Ke2 0–0 16.Nc3 Ra8 17.Rb1 b6 (17...e5 18.d4 ed4 19.ed4=) 18.Bb2 Ne8 (18...e5 19.Nb5 e4 20.Nfd4+=) 19.Ra1 (19.Nb5 f6+=) 19...Ra1= 20.Ba1 Nc7 21.Nd4 Bf6 (21...f5 22.Ncb5 Nb5 23.Nb5=) 22.Ne4+= Be7 (22...Be5 23.f4 f5 24.fe5 fe4 25.Nc6+=) 23.Nc3 Bf6 24.Ne4 (24.Nc6 Ne5 25.Na7 Nd7+=) 24...Be7 25.g4 (25.Nc6 Ba3+=) 25...Kf8 26.f4 h6 27.Bb2 Nc5 28.Nc5 Bc5 29.Nb3 Bb4 30.h4 f6 31.e4 Kf7 32.Bd4 b5 33.Bb6 Na8 34.Bd4 Nc7 35.d3 g6 36.h5 gh5 37.gh5 Ne8 38.Be3 Ng7 39.Nd4 Nh5 40.Nb5 Ng7 41.Kf3 h5 42.Bf2 Ne8 43.Bb6 Be7 44.f5 ef5 45.ef5 Bb4 46.Bf2 Ke7 47.Bg3 Kd7 48.Ke4 Bd6 49.Bh4 Bh2 50.Kd5 Ng7 51.Bf6 Nf5 52.Nd4 Nd4 53.Bd4 ½–½. Svitek,Volker (2130) – Hierling,Stefan (1890), Frankfurt–ch, 2007.

7.Qc2 dc4–/+ 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb3 Qa5 12.Bc3 Bb4 13.Ne2 0–0 14.0–0 Rc8 15.Qb2 Bc3 16.Nec3 Na6 17.d4 b4 18.Na2 Ba4 19.Nd2 b5 20.Rc1 Rc1 21.Nc1 Qc7=+ 22.f3? Qc3–+ 23.Qc3 bc3 24.Nb1 Bb3 25.Nb3 b4 26.e4 Nd7 27.Kf2 Ndc5?? 28.Nc5?? c2–+ (29.Nd2 Nc5 30.dc5 c1Q–+) 0–1. Trkn – LOSER, itsyourturn.com, 2000.

7.Nc3 Bb4 8.Qb3 Qa5 9.Nf3 0–0 10.Na2 Be7=+ 11.b6 Ne4 12.Bc3 Nc3 13.Nc3 Be8 14.Ne5 f6–/+ 15.Nd3 Nd7 16.Rb1 Bf7 17.Be2 Bg6 18.cd5 cd5 19.e4 Rfe8 20.ed5 Bd3 21.Bd3= Nc5 22.Qc2 Nd3 23.Qd3 Rad8 24.0–0 Bb4 25.Qc4 Bc3=+ 26.dc3 Rc8 27.Qb4 Qd5 28.Rbd1 Qc6 29.Rd6 Qc3 30.Qc3 Rc3 31.Rd7 Rb8 32.g3 Kf8 33.Rfd1= Rc4 34.a5 Rc5 35.Rc7+= Rd5 36.Rd5 ed5 37.Rd7 h6 38.Rd5 Ke7 39.Rc5 Rd8 40.Kf1 Kd6 41.Rc1 Re8 42.f4 g5 43.Kf2 h5 44.Rc2 gf4= 45.gf4 Re4 46.Kg3 Ra4 47.Rc7 Ra5 48.Rb7 Rb5 49.Rf7 Ke6 50.Rb7 Kf5 51.Rh7? Rb3–/+ 52.Kg2 Rb6–+ 53.Rh5 Kg4 54.Ra5 Kf4 55.Ra4 Ke3 56.Kg3 f5 57.Ra3 Ke4 58.Ra4 Ke5 59.Ra5 Kf6 60.Kf4 Kg6 61.Ra4 Rf6 62.Ra5 Rb6 63.Ra4 Re6 64.Ra5 Rc6 65.Ra4 Rb6 66.h3 Re6 67.h4 Rb6–/+ 68.h5 Kf6 69.h6 a5 70.Ra5 Rb4 71.Kg3 Kg5 72.h7 Rb3 73.Kg2 Rb8 ½–½. Buczinski,Henryk – Kubiczek,Henryk, Katowice, 1966.

7.Nc3 Bb4 8.Qb3 Bd6 9.cd5 ed5 10.bc6 Bc6 11.d4 =.

7.Nc3 Qc7 8.Nf3 Be7 9.Rc1 0–0 (9...ab5 10.ab5 0–0 11.Qb3 Rc8 12.bc6 bc6 13.cd5 cd5 14.Be2 Nc6+=; 9...dc4 10.Bc4 cb5 11.Be2 Qd6 12.ab5 0–0 13.Ra1 Qb6 14.0–0 Rc8=) 10.Qb3 (10.bc6 Nc6 11.Nd5 Nd5 12.cd5 ed5 13.Bd3 Qb6 14.Qc2 f5=) 10...ab5 11.ab5 dc4 (11...Qd8 12.Ne5 cb5 13.Nd7 Nbd7 14.Qb5 Ra6=) 12.Bc4 b6 (12...cb5 13.Nb5 Qd8 14.0–0 Nc6=) 13.bc6 (13.0–0 Rc8 14.d3 Ra5=) 13...Nc6 14.Nb5 Qb8 (14...Qd8=) 15.Bd3 Rc8 (better is 15...e5=) 16.Bc3?? (16.Bf6 Bf6 17.Bh7 Kh7 18.Qd3 Kg8 19.Qd7+=) 16...Na5 (better is 16...Nb4! 17.Bc4 Bb5 18.Bb5 Na2–/+) 17.Qb1 Bb5 18.Qb5 Rc5 19.Qb1 Rd5?? (better is 19...h6=) 20.Bf6+– Bf6 21.Bh7 Kh8 22.Be4 Qd6 23.0–0 Rd8 24.Bd5 ed5 25.d4 Nc4 26.Qa2 Re8 27.Nd2 b5 28.Nc4 bc4 29.Rc3 Qe6 30.Rb1 g6? 31.h3 Kg7 32.Ra3 Rh8 33.Ra6 Qf5 34.Rb7 Qd3 35.Qb1 Qd2 36.Ra2 Qc3 37.Qc2 Qe1 38.Kh2 Bh4 39.Rb1 Qf2 40.Qf2 Bf2 41.Rf2 Re8 42.Re2 f5 43.Rb5 f4 44.Rd5 1–0. Pierantoni,Mauro (1865) – Bogatto,M, 6th ch–EU Arvier ITA, 2010.

7.Nc3 Bd6 8.d4 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Qa1 =.

7.Nc3 Bd6 8.Nf3 =+.

7.Nc3 Be7 8.Nf3= 0–0 9.Qb3 ab5 10.ab5 Ra1 11.Ba1 Qa5 12.Bb2= dc4 13.Bc4 cb5 14.Nb5 Nc6 15.0–0 Qb6 (Black gets strong initiative) 16.Nc3 Qb3=+ 17.Bb3 Na5 18.Ba4 Ba4 19.Na4 b5 20.Bc3 ba4–/+ 21.Ba5 Ra8 22.Bc3 Nd5 23.Bd4 f6 24.e4–/+ Nf4 25.g3 Nd3 26.Ra1–/+ e5 27.Be3 a3 28.Ne1 Ne1 29.Re1 Kf7 30.Kf1 Ke6 31.Ke2 Kd6 32.Kd3 Kc6 33.Kc3 Kb5 34.Kb3 Ra4 35.d3 Rb4–+ 36.Ka2 Rb2 37.Ka1 Ka4 38.d4 Kb3 39.Rb1?? Rb1 40.Kb1 a2 (41.Kc1 a1Q 42.Kd2 Qf1 43.Bf4 ed4 44.Bd6 Bd6 45.e5 Bb4#) 0–1. Baumann,Eckhard – Dunkhorst,Olaf, Ni Land–ch Germany, 2003.

7.Nc3 Be7 8.Nf3= 0–0 9.Ne5 Bd6 10.d4 ab5 11.ab5 Ra1 12.Ba1 dc4 13.Bc4 cb5 14.Nd7 Qd7 15.Bb5 Qc7 =.

7.Nc3 Be7 8.Nf3 0–0 9.Ne5 Be8 10.d4 Bb4 11.Qb3 Qa5 12.Bd3 (12.Nd3 Be7 13.c5=) 12...Nbd7?? (12...ab5 13.0–0 bc4 14.Bc4 c5–/+ (worse is 14...dc4 15.Nc4 Qc7 16.Qb4+=)) 13.bc6 Ne5 14.de5 dc4 15.Qc4 (15.Bc4 Ne4 16.cb7 Rb8 17.Ba6 Nc3–+) 15...Nd5 (15...Rc8 16.0–0 Rc6 17.Qh4 Bc3 18.ef6+/–) 16.cb7+/– Rb8 17.Rc1 Rb7 18.0–0 (18.Qa6?! Qa6 19.Ba6 Nc3 20.Bb7 Na4 21.Kd1 Nb2 22.Kc2 Na4=) 18...Rc7? (18...Bc3!? 19.Bc3 Qa4 20.Qa6 Qa6 21.Ba6 Rb3+/–) 19.Qe4 (19.Qh4 f5 20.Nd5 Rc1 21.Nb4 Rf1 22.Bf1 Qa4+–) 19...f5 (19...g6 20.Nd5 ed5+–) 20.ef6! Nf6 21.Qe6 Bf7 22.Qa6 Rfc8 23.Qa5 Ba5 24.Nb5 Rc1 25.Rc1 Rc1 26.Bc1 Bb3 27.Bb2 Ba4 28.Bc4 Kf8 29.Ba3 Ke8 30.f3 Kd7 31.Kf2 g6 32.g4 Bb6 33.Nd4 Bd4 34.ed4 Bc6 35.Bf8 Nd5 36.Bg7 Ke7 37.Be5 h6 38.f4 h5 39.h3 hg4 40.hg4 Nb4 41.Kg3 Be4 42.Kh4 Nd5 43.Kg5 Ne3 44.Be2 Ke6 45.Kh4 Ng2 46.Kg3 Ne3 47.Kf2 Nd5 48.Bf1 Ne7 49.Kg3 Kd5 50.Ba6 Ke6 51.Kh4 Kf7 52.Kg5 Nd5 53.Bc4 Ke6 54.f5! gf5 55.gf5 Kf7 56.Bd6 Bf3 57.Bc7 Bh1 58.Bd5 Bd5 59.Kf4 Ke7 60.Ke5 Bf7 61.d5 Be8 62.Ba5 Kf7 63.f6 Ba4 64.Bc3 Ke8 65.Ke6 ½–½. Biberger,Hans (2015) – Schaffranietz,Horst (1960), Munich–ch VM2, 2006.

7.Nc3 Be7 8.Nf3 0–0 9.Ne5 Be8 10.f4 dc4 11.Bc4 Nd5 12.Rb1 f6 13.Nf3 Bg6 14.f5 Bf5–/+ 15.Nd4 Bb1 16.Ne6 Qd6 17.Nf8 Bf8 18.bc6 bc6 19.Nb1 Nd7 20.Qc2 (20...N7b6 21.Bd3+=). Andersson,Lars H – Franke,Hel, corr ICCF EU–H–1014, 1990.

7.Nf3 ab5 8.ab5 Ra1 9.Ba1 cb5 10.cb5 Qa5 11.Nc3 Bb4 12.Be2 0–0 13.0–0 Rc8 14.Qb3 (better is 14.Bb2+=) 14...Rc5? (better is 14...Be8=) 15.Bb2 (better is 15.Rb1 Bc3 16.Bc3+– (16.dc3?! Ne4+=)) 15...Bb5?? (better is 15...Bc3 16.Bc3 Qd8+–) 16.Nb5 (16.Bb5?! Bc3 17.Bd3 Bb2 (17...Bd2? 18.Ra1 Qb4 19.Nd2 Qb3 20.Nb3+–) 18.Qb7 Nbd7 19.Qb2 Rc8=) 16...Rb5 (16...Nc6 17.d4 Rb5 18.Ra1 Qa1 19.Ba1+–) 17.Bb5 (17.Ra1!? Rb6 18.Ra5 Ba5+–) 17...Qb5 18.Ba3 Nc6 19.Rb1 Qc4 (19...Qe2 20.Bb4 h6 21.d4+–) 20.Qc4 dc4 21.Bb4 Nd5 (21...b6 22.Bd6 Nd7 23.Rc1+–) 22.Bc5 Na5 (22...b5 23.Rb5 h6 24.Bd6+–) 23.Rb5 (23.Ra1!? b6 24.e4 h5 25.ed5 ed5 26.Bb6 Nc6+–) 23...b6 (23...Nc6 24.Rb7 h6 25.e4+–) 24.Bb6 Nb6 (24...Nb3 25.Ne5 f6 26.Nc4 Nb6 27.Rb6+–) 25.Rb6 h6 (25...Kf8 26.Ne5+–) 26.Ne5 Nb3 (26...f6 27.Rb5+–) 27.Nc4 (27.Nc4 Nc5 28.Nd6+–) 1–0. Mikhaylov,Dimitri (1860) – Gangan,Lilian, Memorial Gh. Ghimpu, 2012.

7.Nf3 ab5 8.ab5 Ra1 9.Ba1 cb5 10.cb5 Bb4 11.Be2 Qa5 12.Bf6 gf6 13.Nd4 e5 14.Nb3 Qb6 15.Qc2 Bb5?? (Better is 15...Kd8=) 16.Bb5 Qb5 17.Qc8 Ke7 18.Qh8 Nd7? (18...Bd6 19.Nc3 Qb3 20.0–0+–) 19.Qh7 e4?? 20.Nd4 Qd3 21.Nf5 Ke6 22.Nd4 (Better is 22.Ng7 Kd6 23.Qh5 Qb1 24.Qd1 Qd1 25.Kd1+–) ½–½. hal1958 – BigAl, HCL–A1529 playchess.de, 2003.

7.Nf3 ab5 8.cb5 Bd6 =.

7.Nf3 dc4 8.ba6 Na6 9.Bc4 Bd6 10.0–0 0–0 11.Ne5 Qc7 12.f4 Nc5 13.d4+= Nce4 14.Bd3 c5 15.a5 cd4 16.Bd4 Nc5 17.Be2 Bc6 18.Nc6+/– bc6 19.Nd2 Nd5 20.Nc4 Nd7 21.Nd6 Qd6 22.Rf3 c5 23.Bb2 Qc7 24.a6 Rfb8+/– 25.Ra2 Nb4 26.Ra4 Na6 27.Bc3 Nb4 28.Bg7!+– Kg7? 29.Qa1 f6 30.Ra8 Nb6 31.Ra7 Rb7 32.Rg3 Kf7 33.Rb7 Qb7 34.Bh5 Ke7 35.Rg7 1–0. mrkt – Superman, internet, 2006.

6.c4 Nbd7

7.Nc3 dc4 8.Bc4 (8.Nf3 Qa5=) 8...Ne5 9.d3 (9.Be2!? Nd3 10.Bd3 Qd3 11.bc6 bc6 12.Qe2 Qe2 13.Nce2=) 9...ab5–/+ 10.ab5 Ra1 11.Ba1 Bb4 12.Nge2 Nc4 13.dc4 Qd1 14.Kd1 Ng4 15.Ne4 0–0 16.h3 f5 17.hg4 fe4 18.Nf4 (18.bc6 Rf2 19.cb7 Bb7–/+) 18...e5 (18...cb5 19.cb5 Bd6 20.Kc2–+) 19.Be5–/+ Bg4 (19...g5 20.Nh3 Bg4 21.Kc2 Bh3 22.Rh3 Rf2 23.Kb3 Bc5–/+) 20.Kc1 (20.Kc2!?+=) 20...g5 (20...cb5 21.cb5 Rf5 22.Bd4–+) 21.Nh5 (better is 21.Nh3 Bh3 22.gh3 cb5 23.cb5 Rf2 24.Rg1 Bd2 25.Kd1 Be3 26.Rg4–/+) 21...Bh5 (better is 21...Be7 22.bc6 bc6–+) 22.Rh5+= Be7 23.bc6 bc6 24.Rh6 c5 (24...Rf2 25.Rc6 Bb4 26.g4+=) 25.Bg3 Bf6 26.Kc2 Kg7 27.Rh1 Ra8 28.Rb1 (28.Kb3!?=) 28...Ra2–/+ 29.Kb3 Rd2 30.Ka4 Be7 (30...h5 31.Kb5+=) 31.Rb7 Kf6 (31...Kf7 32.Kb3+=) 32.Rb6= Kf7 33.Rh6 Kg7 34.Re6 Kf7 35.Re4 (35.Rh6 Kg7 36.Re6 Kf7 37.Rh6=) 35...Rb2 (35...h5!?–/+) 36.Ka3 (36.Be5 Ra2 37.Kb5 Rf2=) 36...Re2+= 37.Re5 h5 38.Rf5 Kg6 39.Rf3 (39.Rd5!?+=) 39...h4–/+ 40.Be5 (40.Bc7!?–/+) 40...g4–+ 41.Rf4 Bg5 42.Rg4? (better is 42.Rf8 Be3! 43.fe3 Re3 44.Ka4 Re5 45.Kb5–+) 42...Kf5 43.f3 Re3 44.Ka4 Re5 (44...Ke5? 45.Rg5 Kd6 46.Rg6 Kd7 47.Kb5+–) 45.Kb5 Be7 46.Kc6 Re3 47.Kd7 (47.Rg7 Re6 48.Kb7 Bg5–+) 47...Bg5 (47...Re6 48.g3 hg3 49.Rg3–+) 48.Kd6 (48.Kc6 Re2–+) 48...h3! 49.Kc5 (49.gh3 Rd3 Double attack (49...Rf3 Deflection)) 49...h2 50.Kd4 Re1 (50...Re1 51.Re4 h1Q 52.g4 Kf6 53.Re1 Qe1–+) 0–1. Lunin,Mikhail – Andreev,Gennadiy, Zhukovsky A, 2010.

7.Nf3= ab5 8.ab5 Ra1 9.Ba1 =.

7.Nf3= dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 cb5 11.Bb5 Qa5 12.Nc3 Bb4 13.0–0 0–0 14.Be2 Rd8 15.Qc2 Nc5 16.d4 Na6 17.Bb2 Bd7 18.Ra1 Qb6 19.Ne5 Rc8 20.Nd7 Nd7+= 21.Qd3 Nc7 22.h3 Bc3 23.Bc3 Nd5 24.Be1 Qb2 25.Rb1+/– Qc2 26.Rb7 Qd3 27.Bd3+– N5f6 28.f3 h6 29.Kf2 g5 30.Bb4 Rb8 31.Rb8 Nb8 32.Bb5 Nbd7 33.e4 Nb6 34.Be7 Kg7 35.g4 Ng8? 36.Bc5 Nc8 37.d5 ed5 38.ed5 Kf6 39.d6 Nd6 40.Bd6 Ke6 41.Bc5 f5 42.gf5 Kf5 43.Bc4 Nf6 44.Be7 Nd7 45.Bb5 Ne5 46.Bd7 Kf4?? 47.Bd6+– h5 48.Be8 g4 49.hg4 hg4 50.Be5 Ke5 51.fg4 Kf4 52.Bh5 Kg5 53.Kg3 Kh6 54.Kf4 Kg7 55.Be8 Kh6 56.g5 Kg7 57.Kf5 Kg8 58.g6 Kf8+– 59.Kg5 Ke8 60.Kh6 Kf8 61.Kh7 Ke7 +–. ARDA – Lanz, fics, 2001.

7.Nf3= dc4 8.Bc4 Nb6 9.Be2 =.

7.Nf3= dc4 8.bc6 bc6 9.Bc4 Rb8 =.

7.Nf3= Qc7 8.Nc3 dc4 9.bc6 Qc6 10.Qe2 =.

7.Nf3= Qc7 8.Nc3 Be7 9.Rc1 (9.cd5 ed5 10.Be2 ab5 11.ab5 Ra1 12.Qa1 c5=) 9...ab5 (9...0–0 10.cd5 ed5 11.Be2=) 10.cd5 (10.ab5 0–0=) 10...ed5 11.Nb5 (11.ab5 0–0=) 11...Qd8=+ 12.Nc3 0–0 13.Be2 (13.Bd3 Nb6=+) 13...Re8 (13...Qa5 14.0–0=+) 14.Qc2 Bd6 (14...Qa5 15.0–0=+) 15.g3 (15.0–0 Qa5=+) 15...Nf8 (15...Nc5 16.0–0–/+) 16.0–0=+ Ng6 (16...Ne6 17.Rb1=+) 17.Kg2 (17.d3 Qe7=+) 17...Bd7 (17...Qd7 18.Kg1=+) 18.Bd3 (18.Nd4 Bc5=+) 18...Qc8 (18...Bg4 19.Ng5=+) 19.Rfe1 Bh3 20.Kg1 Qg4 21.Be2 Qc8 22.d3 h5 23.Ng5 Bg4 24.Bf1 h4=+ 25.f4 Nh5 26.Qf2 f6 27.Nf3 Be6 28.gh4 Qb8 29.Nd4+= Bd7 30.Qf3 Nhf4= 31.ef4 Bf4 32.Re8 Be8 33.Rc2+= Qe5 34.Nb3 Be3 35.Kh1 Nh4 36.Qg3 Qg3=+ 37.hg3 Nf5 38.Kg2 d4 39.Ne4= Ra4 40.Nbc5 Ra2 41.g4 Nh6 42.Kf3 b6 43.Nb7 Bd7 44.Bh3 Nf7 45.Kg3 Ne5 46.Bd4 Rc2 47.Be3 c5 48.Nf2 Kf8 49.Nd6–/+ Ke7 50.Nde4 Re2–+ 51.Bc5? bc5 52.Nc5 Re3 53.Kh2 Nf3 54.Kh1 Bc6 55.Nce4 Re1 56.Kg2 Ng5 57.Kh2 Nh3 58.Kh3 Re3 59.Kh2 Rf3 60.Kg2 Rd3! 61.Kh2 Rf3 62.Kg1 Re3 63.Nc5 Kd6 64.Ncd3 g5 65.Kh2 Bb7 66.Nb2 Re2 67.Nbd1 Ke5 68.Kg3 (68.Kg1 Kf4 69.Nc3 Rd2–+) 0–1. Lebel Arias,J – Bruinenberg,Carla, Thessaloniki, 1984.

7.Nf3= Qc7 8.cd5 ed5 9.Be2 Bd6 =.

7.Nf3 Bd6 8.Be2 0–0 9.0–0 e5 10.d4 e4 11.Ne5 Qc7 12.Nd7 Bd7 (< 12...Qd7 13.c5 Bb8 14.b6=) 13.Nc3 dc4 14.bc6 Bc6 15.Bc4 Bh2 16.Kh1 Bd6 17.Qe2 Qa5 18.d5 Bd7 (18...Bd5 19.Nd5 Nd5 20.Qh5+/–) 19.f3 Rae8 20.fe4 Ne4 21.Ne4 Re4 22.Qh5? (better is 22.Bd4–+) 22...Qd8 (22...Rc4?! 23.Bg7 Be7 24.Bd4–+) 23.g3 (23.Bf6 gf6 24.Bd3–+) 23...Bg4 0–1. Montane,Antoni (2230) – Borges Mateos,Juan (2440), Sitges op, 2003.

7.Nf3 Be7 8.bc6 bc6 9.Be2 =+.

7.Nf3 Be7 8.Be2 0–0 9.0–0 Qb6 10.a5 Qc7 11.b6 Qb8 12.d4 Bd6 13.c5 Be7 14.Nbd2 Ne4 15.Ne4 de4 16.Nd2 Nf6 (16...f5!?+/–) 17.Qc2+– Rd8 18.Ne4 Ne4 19.Qe4 Bc5?? (19...Rd5+–) 20.dc5 Rd2 (20...Rd5+–) 21.Be5 f5 22.Qf4 Qe5 23.Qe5 1–0. Osmak,Yulia – Ralko,Evgenia, UKR–ch U10 Girls, 2007.

7.Nf3 Nb6

8.Qc2 cb5 9.ab5 (9.cb5 Bd7 10.a5 Rc8 11.Bc3 Nc4 12.Bc4 Rc4 13.Ne5 Rc5 14.ba6+=) 9...dc4 10.Bc4 Nc4 11.Qc4 Be7 12.Nc3 0–0 13.0–0 Bd6 14.e4 =.

8.Qc2 dc4 9.Bc4 (9.bc6 bc6 10.Ne5 (10.a5 Nbd5 11.Bc4 Nb4 12.Qa4 Bd7 13.0–0 Bd6 14.Qd1=) 10...Bb7 (10...Nfd5= 11.a5 Nb4 12.Qc3 Nd7 13.Nd7 Bd7 14.Bc4=) 11.a5 Nbd5 12.Bc4 Nb4 13.Qb3 Bd6 14.0–0=; 9.a5 Nbd5 10.bc6 Nb4 11.Qa4 Nc6 12.Bd4 Bd6 13.Bc4 Bd7 14.Bb6+=; 9.ba6 Ra6 10.Ne5 Be7 11.Nc4 Nbd5 12.Ne5 Ra5 13.Bc4 Nb4 14.Qb3+=) 9...Nc4+= 10.Qc4 c5 (10...ab5 11.ab5 Ra1 12.Ba1+= Bd7 13.Nc3 Qa5 14.0–0+=) 11.0–0= b6 12.d4 (12.Nc3 Bb7 13.e4 Be7 14.Rad1=) 12...Bd6 (12...ab5 13.Qb5 Bd7 14.Qb3=) 13.dc5 (13.Nbd2 Bb7 14.dc5=) 13...Bc5 14.Nbd2 0–0 (14...ab5 15.ab5 Bb7 16.Ra8 Ba8 17.Qf4+=) 15.Ne4 (15.Bf6 Qf6 16.Ne4 Qf5+=) 15...Ne4= 16.Qe4 Ra7 17.Qg4 (17.Rfd1 Qe7+=) 17...f6 18.g3 (18.Qc4!?=) 18...Qe8 19.Qc4 Bb7 20.Nd4 Bd5 21.Qe2 e5 22.Nc2 (22.Nf5!?–/+) 22...Qe6 23.Na3 Qf5 24.f3 Rfa8 25.Kg2 (25.ba6 Ra6 26.Nb5 e4–/+) 25...Qe6 (25...e4 26.f4–+) 26.Rfc1 Bb3 27.Nc4? (better is 27.a5–/+) 27...ab5–+ 28.ab5?! (28.Nd2 ba4 29.Nb3 Qb3 30.Rc3–+) 28...Bc4 29.Rc4 Ra1 30.Ba1 Ra1 31.Qd3 Ra2 32.Kh1 Qd6 (32...Rd2! 33.Qd2 Qc4 34.Kg2–+) 33.Qd6 Bd6 34.f4 ef4 35.ef4 Rb2 36.Rc8 Kf7 37.Rc6 Bc5 38.Rc7 Kg6 39.f5 Kh6 40.Rd7 Rb5 41.Kg2 Rb2 42.Kh3 b5 43.g4 Rb3 (43...Bg1!? 44.Kg3 Bh2 45.Kf3–+) 44.Kg2 b4 45.h4 Be3 46.Re7 Bc1 47.Rb7 Rb1 48.Kf3 b3 49.Ke4 (49.Ke2 g6 50.fg6 hg6–+) 49...b2 (better is 49...Ba3 50.g5 fg5 51.hg5 Kg5 52.Rg7 Kf6 53.Rh7 Re1 54.Kd5–+) 50.Kd3 Ra1 51.Kc2 b1Q! 52.Rb1 Rb1 53.Kb1 Bf4 54.Kc2 Bg3 55.g5 0–1. Kamaletdinov,Farit (1970) – Muhambetov,Ramil, Astrakhan Open, 2011.

8.Qc2 Nc4 9.ba6 (9.Bc4 dc4 10.bc6 Qd3 11.Qd3 cd3 12.Ne5 bc6 13.Nd3 Rb8 14.Be5=) 9...Ra6 10.Bc4 dc4 11.Qc4 Ra5 12.0–0 Bd6 13.Bc3 Rc5 14.Qe2 =.

8.Qc2 c5 9.Na3 (9.ba6 ba6 10.cd5 Nbd5 11.Be2 Nb4 12.Qc3 Bb7 13.0–0 Rb8 14.Na3=; 9.d3 ab5 10.ab5 Ra1 11.Ba1 Bd6 12.e4 Be7 13.cd5 ed5 14.Bf6=; 9.cd5 ed5 10.Be2 ab5 11.Bb5 Bd7 12.Bf6 Qf6 13.Bd7 Nd7 14.Nc3=) 9...Be7 10.d4 cd4 11.c5 Nbd7 12.ed4 Ne4 13.Bd3 Qa5 14.Nd2 =.

8.cd5 cd5 9.Nc3 (9.Na3 Bd6 10.Be2 0–0 11.0–0 a5 12.Rc1 Qe7 13.Qb3 e5 14.d4=; 9.Qb3 Bd6 10.Be2 Nbd7 11.0–0 ab5 12.Bb5 0–0 13.d4 Nb6 14.Ba3=; 9.a5 Nc4 10.Bc4 dc4 11.ba6 Ra6 12.Qa4 Bd7 13.Qc4 Ra5 14.Ra5=) 9...Bd6 10.a5 Nbd7 11.Be2 0–0 12.b6 e5 13.0–0 Qe8 14.d4 +=.

8.cd5 ed5 9.a5 (9.bc6 bc6 10.Be2 Bd6 11.Qc2 c5 12.0–0 Rb8 13.Be5 0–0 14.d4=; 9.ba6 ba6 10.Be2 Bd6 11.a5 Nbd7 12.0–0 Rb8 13.Ra2 c5 14.Nc3=; 9.Be2 ab5 10.ab5 Ra1 11.Ba1 Bd6 12.bc6 bc6 13.0–0 0–0 14.Qc2=) 9...Nbd7 10.b6 Bd6 11.Be2 0–0 12.0–0 Re8 13.Ba3 Ne5 14.Ne5 =.

8.cd5 Nbd5 9.Nc3 (9.ba6 ba6 10.Ne5 Bb7 11.Bc4 Bd6 12.0–0 c5 13.f4 0–0 14.Nc3=; 9.Ne5 ab5 10.ab5 Ra1 11.Ba1 c5 12.Be2 Bd6 13.d4 cd4 14.Bd4=; 9.bc6 bc6 10.Ne5 Bb7 11.Nc3 Rb8 12.Nd5 cd5 13.a5 Bd6 14.Qa4=) 9...Bd6 10.Nd5 ed5 11.Bd3 c5 12.0–0 c4 13.Be2 Bb4 14.Qc2 =.

6.c4 Be7

7.Nf3 0–0 8.Nc3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Be7 5.Nf3 c6 6.a4 0–0 7.c4 a6 8.Nc3 Nbd7).

7.Nf3 Nbd7 8.Be2 dc4 9.bc6 bc6 10.a5 Rb8 11.Bc3 Nd5 12.Bg7 Rg8 13.Be5 Ne5 14.Ne5 Bf6?? (better is 14...Qc7 15.Nc4 Rg2–/+) 15.Nc6+/– Qc7 16.Nb8 Qb8 (better is 16...Ba1!? 17.Qa4 Ke7 18.Qa1 Nb4+–) 17.Ra4+– Rg2 18.Rc4 (worse is 18.Bc4 Rh2 19.Rh2 Qh2+/–) 18...Bh4?? (better is 18...Bd7+–) 19.Rh4 1–0. Huelle,Gunter – Kautz,Stefan (2020), Leipzig VfB op, 2003.

7.Nf3 Nbd7 8.Be2 Qc7 9.cd5 cd5 10.Nc3 e5 11.Qb3 Qd6 12.Ba3 Qe6 Black plans e4 13.Be7 Ke7 14.d4 e4 15.Ng5 Qd6 16.0–0 h6 17.Nh3 g5 18.ba6 ba6 19.f4 g4 20.Nf2 h5 21.Rab1 Rb8 22.Qc2 Bb7 23.Rfc1 Rhc8 (better is 23...Rhg8!?+=) 24.Rb7!+/– Rb7 25.Nd5 Nd5 (25...Qd5 26.Bc4 Double attack (26.Qc8 Discovered attack; 26.Bc4 Decoy); 25...Nd5 26.Qc8 Discovered attack) 26.Qc8 Rc7 (better is 26...Rb8!? 27.Qc2 f5+=) 27.Rc7+– Nc7 28.Qb7 Nd5? (28...f5!?+/–) 29.Bc4 (better is 29.f5 Nc3 30.Ba6+– (30.Qa6?! Qa3+/–)) 29...Ne3?? (29...N5f6 30.Qb3 Qc6+–) 30.Qe4 Kf8 31.Qe3 Nb6 32.Ba6 Nd5 33.Qe5 Qe5 (33...Qa6 34.Qd5 Qa4 35.g3+–) 34.fe5 f6 35.Bb7 Nb6 (35...Nc3 36.a5 fe5 37.de5+–) 36.a5 Nd7 37.e6 Nb8 38.a6 Na6 39.Ba6 Ke7 (39...f5+–) 40.Bc4 Kd6 41.Ne4 1–0. Janek – Zack, internet, 2016.

6.Nf3 Bd6

7.c4 Qa5 8.Be2 Qb4?? (8...dc4 9.Bc4 Qb4= (worse is 9...ab5 10.ab5 Qa1 11.Ba1 Ra1 12.0–0+/–; worse is 9...cb5 10.ab5 Qd8 11.Be5=)) 9.Ba3+– Qa5 10.Bd6 Nbd7 11.0–0 Nb6 12.Bc7 Kd7 13.Bb6 Qb6 14.a5 Qc5 15.d4 Qd6 16.c5 Qe7 17.Ne5 Ke8 18.bc6 b5 (18...bc6 19.Nc6 Qc7+–) 19.cb6 Ne4 (19...Qb4 20.Qa4 Qa4 21.Ra4+–) 20.b7 (20.Qa4 Kf8 21.b7 Bb7 22.Nd7 Qd7 23.cd7 Ke7+–) 20...Rb8 (20...Bb7 21.cb7 Qb7 22.Qa4 Kf8 23.Rc1+–) 21.bc8Q Rc8 22.Ba6 Rc7 23.Bb5 Kf8 24.Nd7 Ke8 (24...Kg8 25.a6 Ra7 26.Bd3+–) 25.f3 (better is 25.a6 Qb4 26.a7 Ke7+–) 25...Nd6 26.Qd3 f6 27.Nc3 Nb5 28.Qb5 Kf7 29.a6 Qd6 30.a7 Rc6 (30...Ra8 31.Nb6 Raa7 32.Nc8 Rc8 33.Ra7 Kg6 34.Qb7+–) 31.Nc5 Ra8 32.Qb7 Qc7 33.Qa8 1–0. Hal1958 – Jethro, playchess.de, 2002.

7.c4 ab5 8.ab5 Ra1 9.Ba1 0–0 10.Be2 dc4 11.Bc4 cb5 12.Bb5 Qa5 13.Qa4 b6 14.Qa5 ba5 15.Be5 Be5=+ 16.Ne5 Bb7 17.0–0 Ne4 18.Nc4 Bc6 19.Bc6 Nc6 20.f3 Nc5 21.d4 ½–½. marekt – vlogvine, ChessHere.com, 2005.

7.Be2 0–0 8.0–0 Nbd7 9.Ba3 c5 10.d4=+ b6 =.

7.Be2 e5 8.Ne5–/+ Be5 9.Be5 Nbd7 10.Bb2 g6 (10...0–0!?–/+) 11.0–0+– 0–0 12.Nc3 ab5 13.ab5 Ra1 14.Qa1 Nb6 15.Nd1 Nh5? (15...Nfd7+–) 16.bc6 bc6 17.g4 Nf6?? (17...Bg4 18.Bg4 Qg5+–) 18.Bf6 Qd6 19.Qe5 Qe6 20.d4 Re8 21.g5 Qd7 22.Qf4 Re4 (22...Qf5 23.Qh4 Qh3 24.Qg3 Qg3 25.hg3+–) 23.Qf3 (23...Qa7 24.Nc3+–; 23.Qb8 Nc4+–) 1–0. market (1785) – abelola, GameColony.com, 2002.

6.Nf3 Bd7

7.Na3 Be7 8.Be2 0–0 9.0–0 Qc7 10.c4 dc4 11.Be5 Qd8 12.b6 Ba3 13.Ra3 Qb6 14.a5 Qb4 15.Ra4 Qe7 16.Qb1 Bc8 17.Rc4 Nbd7 18.Bc3 Nd5 19.Rh4 f5 20.Ba1 N5f6 21.Bc4 Ne4 22.Re4 fe4=+ 23.Qe4 Nf6 24.Qh4 Nd5 25.Qg3 b5=+ 26.ab6 Nb6 27.Bd3 Nd5 28.Ne5 Bb7?? 29.Bh7!+– Kh7 30.Qh3 Kg8 31.Ng6 Qf6 32.Bf6 Rf6 33.Qh8 Kf7 34.Ne5 Ke7 35.Qg7 (35...Ke8 36.e4+–) 1–0. Fink,Norbert – Strathoff,Dirk, Ruhrgebiet VK2, 1999.

7.Nc3 Bd6 8.Be2 =+.

7.Nc3 g6 8.Be2 Bd6 =.

7.Nc3 g6 8.g3 Bg7 9.Ba3 Ne4=+ 10.Nd4 Nc3–/+ 11.dc3 cb5 12.ab5 Qc7 13.Qd2 e5–/+ 14.Nb3 ab5 15.Be2 Bf8 16.Bf8=+ Ra1 17.Na1 Kf8 18.Nb3 Kg7 19.0–0 Rc8 20.Qd5=+ Bh3 21.Rd1= Qc3 22.Qb5 Qc2 23.Qe5 Kg8 24.Nd4 Qb2 25.Qb5 Qb5= 26.Nb5 Nd7 27.f3 Be6 28.Nd6 Rc2= 29.Kf2 Nc5 30.e4 Kf8 31.Ke3 Ke7 32.h3 Bh3=+ 33.g4 h5 34.Nc8 Ke8 35.Nd6= Ke7 36.Nc8 Ke8 37.Bb5 Kf8–/+ 38.Rd8 Kg7 39.Ne7 hg4–+ 40.Rg8 Kh7 41.Rf8 ½–½. Suutarla,Ari – Sabanes Taure,Victor, IBCA–ol blind 4th prel–A, 1972.

7.Be2 Bd6 =.

7.Ne5 ab5 8.Nd7 Qd7 9.ab5!? Ra1 10.Ba1 =.

7.Ne5 ab5 8.Nd7 Qd7 9.Bf6 gf6–/+ 10.c3 ba4 11.Ra4 Ra4 12.Qa4 Bd6 13.Be2 f5 14.0–0 0–0 15.Qh4=+ f6 16.d4 Qg7 17.f4 Nd7 18.Rf3 Kf7 19.Nd2 Rg8 20.Rg3= Qh8 21.Rh3 Rg7 22.Qe1 Qg8 23.Bf1 e5 24.fe5 fe5 25.e4 f4 26.Nc4 Bc7 27.Ne5 Be5 28.de5 Ne5 29.ed5+= f3 30.g3 Qb8? 31.Rh5+– Kf6 32.Qe3 Rg4 33.Bh3 (33...Rg6 34.Rf5 Kg7 35.Re5 cd5 36.Rd5+–) 1–0. Plock,Joerg – Fritsch,W, corr, 1990.

7.Ne5 ab5 8.Nd7 Nbd7 9.ab5 Ra1 10.Ba1 Bd6 =.

6.f4 ab5

7.ab5 Ra1

8.Ba1 Bd6 9.Nf3 0–0 10.Bd3 Nbd7 11.0–0 Qc7 12.Qe1 h6 13.Qg3 Qa5 14.Bc3 Qd8 15.Be2 Be7 16.Bb2+= Nc5 17.Nc3 Nce4 18.Ne4 de4 19.Nd4 Qb6 20.Rb1 Bd7 21.bc6 bc6 22.Nb3 Ra8 23.d3 Ra2 24.Bf1 ed3 25.Bd3 Qb4 26.Be5 Be8 27.Rd1 c5 28.Nd2 c4 29.Nc4+/– Bb5 30.Bf6 Bf6= 31.Ne5 Be5 32.fe5 Bd3 33.cd3 Rd2 34.Qe1 Rd1= 35.Qd1 Qc3 36.h4 Qe5 37.Qf3 Qb2 38.d4 Kf8 39.Kh2 Ke7 40.Qg3 Qe2 ½–½. pcmvr (2780) – petrus (2635), net–chess.com, 2006.

8.Ba1 Bd7 9.Nc3 cb5 10.Bb5 Bb5=+ 11.Nb5 Ne4 12.Nf3 Nc6 13.0–0 Be7 14.Bg7+/– Rg8 15.Ba1 f6 16.Nfd4 f5? 17.Ne6+– Qb6 18.Qh5 Kd7 19.Qf5 Qb5 20.Nd4 Kd8 21.Nb5 Nd2 22.Qd5 Kc8 23.Qe6 Kd8 24.Qg8 Kd7 25.Qd5 Ke8 26.Nc7 Kf8 27.Qf5 Kg8 28.Qg4 (28...Bg5 29.Qg5 Kf7 30.Qg7) 1–0. pcmvr (1700) – tacitus (1965), net–chess.com, 2006.

8.Ba1 Bd7 9.Nc3 Bc5 10.Nf3 =+.

8.Ba1 Bd7 9.bc6 Nc6 10.Nf3 Be7 11.Be2 0–0 12.0–0 Qb6 13.Ne5 Ra8 14.Bc3 Ra2 15.Bd3 h6 16.g4 Be8 17.g5 hg5 18.fg5 Ne5 19.Be5 Ne4 20.Nc3 Nc3=+ 21.Bc3 Bg5 22.Qh5 Bh6 23.Rf6 Kf8 24.Rh6 gh6 25.Qh6 Ke7 26.Bf6 Kd7 27.Qf8 Ra8 28.h4 Kc6 29.h5 Qa5 30.h6+/– Qd2 31.Bd4 Qe1 32.Kg2 Qd2 33.Kf3 Qd1 34.Kf4 e5 35.Be5 Qg4 36.Kg4 Bd7 37.Kg5 Re8 38.Qd6# 1–0. Wolf,Wolfgang (2285) – Mathes,Werner (2060), 35.DFM/V6 BdF Herren, 2003.

8.Ba1 Bd7 9.Nf3 cb5 10.Ne5 b4 =.

5.a4 Bd6

6.c4 ab5 7.cb5 e5 8.d4 –/+.

6.c4 c6 7.d4 Bb4 (7...dc4 8.bc6 Nc6 9.Bc4=+) 8.Bc3= Bc3 (8...Be7 9.Nf3=) 9.Nc3 Qa5 10.Qb3 (10.Qd2 dc4 11.bc6 b5=+) 10...0–0 (10...dc4 11.Bc4 ab5 12.Bd3–/+) 11.Bd3 (11.Rc1 b6=) 11...Bd7 (11...dc4 12.Qc4 ab5 13.Qb3=+) 12.Nge2 (12.Ra2 dc4 13.Bc4 Ne4=) 12...ab5 (12...dc4 13.Qc4 cb5 14.Qa2 ba4 15.0–0–/+) 13.cb5= cb5 14.ab5?? (better is 14.Bb5 Rc8 15.0–0=). Wartig,Wolfgang – Andre, corr SOK–90–61, 1990.

6.c4 e5 7.cd5 Nd5 8.Nf3 Qe7 (8...e4 9.Nd4=+) 9.Nc3 Nc3 10.Bc3 0–0 11.Be2 e4 12.Nd4 Qg5 13.0–0? (better is 13.g3=+) 13...Bh3–+ 14.g3 Bf1 15.Bf1 Nd7 16.Bh3 Rfd8 17.f4 Qd5 18.Nf5 g6 19.Nh6 Kf8 20.Qg4 ab5 21.f5 Ne5 22.Be5 Be5 23.fg6 Ba1 24.gf7 Bg7 25.Qf4 ba4 26.Bf5 a3 27.Be4 Qd2 28.Ng8 a2 29.Qc7 a1Q (30.Bb1 Qb1 31.Qc1 Qbc1) 0–1. katchum (1780) – rmorton (2220), net–chess.com, 2001.

6.d3 ab5 7.ab5 Ra1 8.Ba1 c6 9.bc6 Nc6 10.Nd2 0–0 11.g3 Qa5 (11...e5!?–/+) 12.Bf6= gf6 13.Bg2 Nb4 14.Qb1 Bd7 15.Ne2 Rc8 Attacks the backward pawn on c2 16.c3 Na2 17.Qb7 Rc7 18.Qb8 Kg7 19.0–0 Nc3 20.Nc3 Qc3 (20...Rc3? 21.Qd6 Bb5 22.Qf4+–) 21.Qb6 Rc6 (21...Qd2?! 22.Qd6 Rb7 23.e4=) 22.Qa7 Bc8 (22...Qd2?! 23.Qd7 Ra6 24.Bf3=) 23.Qa4 Rb6 24.Rd1 (better is 24.Qg4!? Kf8 25.Rd1+=) 24...Rb4 25.Qa2 Qd3 26.Rc1 Rb8 27.Bf1 Qa3 28.Qa3 Ba3 29.Rc7 e5 30.h3 Be6 31.Bg2 Rb2 32.Nf1 d4 33.ed4 ed4 34.Be4 Bh3 35.Bd5 Bf5 36.Rf7 Kg6 37.Rc7 Bd6 38.Rc4 Be5 39.Ra4 Bd3 40.Nh2 Bb5 41.Ra7 (41.Ra5 Bc7 42.Ra7 Bb6–+) 41...d3 42.Nf3 d2 43.Be4 f5 44.Ne5 Kf6 45.Nd7 Bd7 46.Rd7 fe4 47.Kf1 Ke6 48.Rd8 Ke5 49.Ke2 d1Q! 50.Kd1 Rf2 51.Ke1 Rg2 52.Rd7 h5 53.Rh7 Kd4 54.Kf1 Rg3 ½–½. Wlasow,Andrey (2220) – Geiger,Walter (2050), IECG, 2006.

6.d4 0–0 7.c4 (7.Nd2 Nbd7=+) 7...c5 (7...ab5 8.cb5 Ne4 9.Nc3–/+) 8.Nf3 ab5 (8...cd4 9.Bd4 ab5 10.ab5 Ra1 11.Ba1=+) 9.ab5 Ra1 10.Ba1 Nbd7 11.dc5 Nc5 12.Be2 b6 13.0–0 Bb7 14.Nbd2 Nfe4 15.cd5 Bd5 16.Ne4 Be4 (16...Ne4 17.Qd4 f6 18.Bc4=+) 17.Qd4= f6 18.Nd2 Bd5 19.e4 Bb7 20.Qe3 Rf7 21.Nc4 Be4 22.Bd4 Bd5 23.Rc1 Bc4 24.Bc4 Re7 25.Rd1 Be5 26.f4 Bd4 27.Rd4 Qc7 28.f5 Kf7 29.Qh3 h6 30.Qe3 Re8 31.fe6 Ne6 32.Ba2 f5 33.Rc4 Qa7 34.Qf2 Qa3 35.Rc6 Qd3 36.Qe1 Qd4 37.Kh1 Qe4 38.Qc1 Qd4 39.Qe1 Qe4 40.Qc1 Qd4 41.Qe1 ½–½. Baumann,Walter (2050) – Lagergren,Henry (1960), corr WS/H/171 ICCF, 2009.

6.Nf3 ab5 7.ab5 Ra1 8.Ba1 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 a6 5.a4 ab5 6.ab5 Ra1 7.Ba1 Nbd7 8.Nf3 Bd6).

6.Nf3 c5 7.c4 0–0 8.Be2 Nbd7 9.d4 Qc7 10.Nbd2 b6 11.0–0 Bb7 12.Qb3 Ne4 13.h3 Ndf6 14.Ne4 Ne4 15.Bd3 dc4 16.Qc4 ab5 17.ab5 Bd5 18.Qc2 f5 19.Rfc1 Ra1 20.Ra1 c4 21.Be4 Be4 22.Qc3 Bd5 23.Ba3 Ra8 24.Bd6 Ra1 25.Qa1 Qd6 26.Ne5 Qc7 27.Qc3 Qa7 28.Qb4 h6 29.Kh2 Qc7 30.Qc3 Kh7 31.f3 Qa7 32.Qc2 Qb7 33.Kh1 Qa8 34.Kg1?? Qa1–+ 35.Kf2 c3 36.Nd3 Bc4 37.Ne1 Bb5 38.g4 g6 39.gf5 gf5 40.d5 Qb2 41.Kg3 Qc2 42.Nc2 ed5 43.Kf4 Bd3 44.Nb4 Bb1 45.Ke5 c2 46.Nd3 Ba2 47.Kf5 b5 48.Ke5 Bc4 49.Nc1 Kg6 50.f4 b4 51.Kd4 b3 52.Kc3 Kf5 0–1. Lorenc,Tomas – Plotek,Evzen (2075), CZE–chT2V, 1998.

6.Nf3 Nbd7 7.Nc3 Qe7 8.Be2 e5 9.0–0 0–0 10.d4 e4 11.Nd2 a5 12.Qc1 Nb6 13.Ba3 Be6 14.Re1 Bb4 15.Qb2 h6 16.Bf1 Nfd7 17.Qb3 f5 18.Bb4 Qb4 19.Ne2 Qe7 20.Qa3 Qf6 21.Qc3 Rfc8 22.Ra2 Bf7 23.Qa1 Qd6 24.h3 Qf6 25.Qc3 g5 26.Nc1 f4 27.Ncb3 c6 28.Qa1 Bg6 29.bc6 Rc6 30.Bb5 Rc7 31.Qd1 Qf7 32.Qe2 Bh5 33.Qf1 f3 34.Rc1 fg2 35.Qg2 Rc3 36.Nb1 Rcc8 37.N3d2 Rc7 38.Qg3 Rac8 39.Bf1 Kh7 40.c4 Nc4 41.Nc4 dc4 42.Nc3 Nf6 43.Rac2 Rd7 44.Nb5 c3 45.Bg2 Qe7 46.Nc3 Bg6 47.Nd5 Rc2 48.Nf6 Qf6 49.Rc2 Kg7 50.Rc5 b6 51.Rc7 Rf7 52.d5 Qa1 53.Kh2 Qf6 54.Rf7 Kf7 55.Qc7 Kf8 56.d6 Qe5 57.Kg1 Bf5 58.Bf1 g4 59.Qd8 Kg7 60.hg4 Bg4 61.Qc7 Kf8 62.Qb8 Kg7? 63.Qb6+/– Bf3 64.Qd4 Qd4 65.ed4 Kf7 66.Bc4 Ke8 67.Bb5 Kd8 68.Kh2 h5 69.Kg3 Bd1 70.Bc6 Kc8 71.Kh4 Kd8 72.Kg5 Kc8 73.Be8 Kd8 74.Bb5 Kc8 75.Bc6 ½–½. Degterev,Pavel (2275) – Bernal Varela,Nelson (2180), RM–2008–0–00024, 2009.

6.f4 b6 7.g3 (7.Nf3!?=) 7...0–0=+ 8.Bg2 c6 9.bc6 Nc6 10.Nf3 Bb7 11.0–0 Re8 12.Re1 Qe7 13.Nd4 Rec8 14.Nc6 Rc6 15.Nc3 Rc4 16.Ne2 Rac8 17.c3 Qd7 18.Nd4 Ne4 19.Be4 (19.Qc2!?=+) 19...de4–/+ 20.a5 b5 21.Nc2 (21.Ba3 e5 22.fe5 Be5–/+) 21...Bc7 22.Qe2 (22.Nd4 Qd8–+) 22...Qd8 23.Red1 Ba5 24.Nd4 Bb6 25.Nb3 a5 26.Nd4 Qd5 27.Nb3 a4 28.Nd4 Bd4 29.cd4 Ra8 30.Ba3 b4 31.Rdb1 Ba6 32.Qe1 ba3 33.Ra3 Qd6 34.Rba1 Bb7 35.Qd1 Qc6 36.Kf2 Rc2 37.Ke1 Ra5 38.Kf2 Ba6 39.Ke1 Bd3 40.Kf2 Ra8 41.Ke1 Qc4 42.Kf2 Kh8 43.Ke1 Qb5 44.Kf2 Qb2 45.Ke1 Qb4 46.R1a2 Ra2 47.Ra2 a3 48.Qc1 Bc4 49.Ra1 a2 50.Kd1 Qb3 51.Qc2 Be2! (52.Ke2 Qc2 53.Ke1 Qb2 54.Kf2 Qd2 55.Kg1 Rb8 56.Rf1 Rb1 57.d5 Rf1 58.Kf1 a1Q) 0–1. Hasler,Ulrich (1990) – Von Oppenkowski,Roman, corr W–Cup12 Gr058, 2000.

6.f4 Qe7 7.Nf3 =.

6.c4 0–0

7.Qb3 Nbd7 8.cd5 ed5 9.Nf3 Re8 10.Nc3 Nc5 11.Qc2 ab5 12.ab5 Ra1 13.Ba1 Qd7 14.Be2 Qf5 15.Qf5 Bf5 16.0–0 h6 17.Nd4 Bh7 18.Bf3 Bd3 19.Rc1 Bc4 20.Nf5 Bf8 21.d4 Nb3 22.Rb1? Ra8–+ 23.Bb2 Bd3 24.Nh6 gh6 25.Rd1 Bc4 26.e4 de4 27.Ne4 Ne4 28.Be4 Ra2 29.Bc3 Bg7 30.Bb7 Nd4! 31.Bd4 Bd4 32.Bc6 Bf2 33.Kh1 Kg7 34.h3 Bg3 35.Rc1 f5 36.Bf3 Bb5 37.Rb1 c6 38.Kg1 Bd3 39.Rd1 Be4 40.Be4 fe4 41.Rc1 (41.Rc1 e3 42.h4 e2 43.Re1 Rd2 44.Kh1 Rd1 45.Rg1 Rg1 46.Kg1 e1Q) 0–1. ludice (1745) – johnmayall5 (1830), internet, 2011.

7.Nc3 Nbd7 8.Nf3 ab5 9.Nb5 Be7 10.d4 Ne4 11.Bd3 Bb4 12.Kf1 c6 13.Ba3 Be7 14.Be7 Qe7 15.Na3 h6 16.g3 e5 17.cd5 ed4 18.dc6 Ndf6 19.Nc4 de3 20.Ne3 Re8 21.Qe2 Bh3–+ 22.Kg1 bc6 23.Be4 Ne4 24.Nd2 0–1. marre – sergej1967, internet, 2010.

7.Nf3 Nbd7 8.cd5 Nd5 9.Nc3 N7f6 10.Nd5 Nd5 11.Be2 ab5 12.ab5 Ra1 13.Qa1 f6 14.0–0 e5? (14...Qe7 15.Re1=) 15.e4 (better is 15.Bc4 Be6 16.Qa2+/–) 15...Nf4= 16.Bc4 Kh8 17.d4 Qd7 18.de5 fe5 (18...Qg4!? 19.Ne1 fe5=) 19.Be5 Ng2 (19...Qg4 20.Bf4 Rf4 21.Nd2+=) 20.Bg7!+/– Qg7 21.Qg7 Kg7 22.Kg2 Rf4 23.Bd5 Rg4 24.Kh1 Kf6 25.Rg1 h5 26.Rg4 hg4+= 27.Nd2 b6 28.Nc4 Bd7+= 29.Nd6 cd6 30.Bc4?? Ke5=+ 31.Bd3 Kd4–/+ 32.Bb1 Bb5 33.Kg2 Bd3 34.Bd3 Kd3 35.f3 gf3 36.Kf3 b5 37.h4 b4 38.h5 b3 39.h6 b2 40.h7 b1Q 41.h8Q Qf1 42.Kg3 Qe1 43.Kh2 Qe2 44.Kg1 Qe3 45.Kf1 Qf3 46.Kg1 Qg3 47.Kf1 Qf4 48.Kg1 Qe4 49.Qb2?? Qd4 50.Qd4 Kd4 51.Kf2 Kd3 52.Ke1 d5 53.Kd1 d4 0–1. bluepiramid2 (1815) – 2606cs (1855), internet, 2011.

7.Nf3 Nbd7 8.Be2 Nb6 9.0–0 Nc4 10.Bc4 dc4 11.Qc2 ab5 12.ab5 Ra1 13.Ba1 Nd5 14.Qc4 Nb6 15.Qc3 f6 16.Na3 Ba3 17.Qa3 Nc4 18.Qb4 Qd5 19.Rc1 Nb6 20.Rc7+/– Qa2 21.Rc1 e5 22.h3 Be6 23.d3 Rc8 24.Rc8 Bc8 25.Qb2 Qa4? 26.Nd2 Qd1 27.Kh2 Qh5 28.Qb3 Kh8 29.Ne4 f5? 30.Nd6+– Bd7 31.Nf7 Kg8 32.Ne5 Kf8 33.Bd4 f4 34.Bc5 Ke8 35.Qg8 1–0. hal1958 – froilo, HCL–A1256 playchess.de, 2003.

6.c4 dc4

7.Bc4 0–0 8.Nf3 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.d4 Nb6 12.Be2 Bd7 13.0–0 Qe7 14.Bc3 Ra8 15.Qb3 Nfd5 16.Bd2 Ra4 17.Rc1 f5 18.Ne5 Be5 19.de5 Kf7 20.Nc3 Nc3 21.Qc3 Nd5 22.Qb3 Qa3 23.Qa3 Ra3= 24.Kf1 Rb3 25.f3 Bb5 26.Bb5 Rb5 27.e4 fe4 28.fe4 Nb4 29.Rc7 Kg6 30.Bb4 Rb4 31.Kf2 Re4–/+ 32.Rb7 Re5 33.g4 Kf6 34.h4 h6 35.Kf3 Ra5 36.Kf4 Ra4 37.Kf3 Ra3 38.Kf4? g5 39.hg5 hg5 40.Ke4 Rg3 41.Rb8 Rg4 42.Kf3 Rf4 43.Kg3 Kf5 44.Rf8 Ke4 45.Rg8 Rf5 46.Kg4 Rf1 47.Ra8 Rg1 48.Kh3 e5 49.Kh2 Rg4 50.Kh3 Rf4 51.Ra4 Kf5 52.Ra8 g4 53.Kh4 Rd4 54.Rf8 Ke6 55.Re8 Kd5 56.Rd8 Kc4 57.Rc8 Kd3 58.Re8 e4 59.Kg4 Ke3 60.Kg3 Ke2 61.Rh8 Rd3 62.Kf4 e3 63.Rh2 Kd1 64.Ke4 e2 65.Rh1 Kd2 66.Rh2 Re3 67.Kd4 Re8 68.Rg2 Kd1 (68...Kd1 69.Rg1 e1Q 70.Re1 Ke1 71.Kd5 Kd2 72.Kd4 Ke2 73.Kd5 Kd3 74.Kd6 Kd4 75.Kd7 Re3 76.Kd6 Kc4 77.Kc7 Rd3 78.Kc6 Rd5 79.Kb6 Rc5 80.Ka7 Kb5 81.Kb7 Rc1 82.Ka7 Kc6 83.Kb8 Kb6 84.Ka8 Rc8#) 0–1. popovicigelu – marcelfm, internet, 2011.

7.Bc4 ab5 8.ab5 Ra1 9.Ba1 b6 10.Qb3 Bb7 11.Nf3 0–0 12.d3 Bf3 13.gf3 Nbd7 14.d4? (better is 14.Nd2!?=) 14...Qa8–/+ 15.Bb2 Qa5 (better is 15...Qf3 16.Rf1 Qg2–/+) 16.Kf1 Bb4 17.Rg1 Ra8 18.d5 ed5 19.Bd5 Qb5 20.Bc4 Nc5?? (better is 20...Qa5=+) 21.Bb5 Nb3 22.Bf6 Kf8? 23.Bg7 Ke7 24.Bb2 Ra2 25.Be5 f6? 26.Bc7 Bc5 27.Bc4 Rb2 28.Rg7 Kf8 29.Rf7 Ke8 30.Bb3 Rb1 31.Kg2 Rb3 32.Rh7 Rd3 33.Bf4 b5 34.Rb7 b4 35.h4 b3 36.h5 Bf8? 37.h6 Rd7? 38.h7 Bg7 39.Rb8 Kf7 40.Rb3 Kg6 41.e4 Kh7 42.Be3 Kg6 43.f4 Bf8 44.Kf3 Kf7 45.f5 Bd6 46.Bf4 Bc5 47.Rb5 Ba7 48.e5 fe5 49.Be5 Rd3 (49...Rd3 50.Ke4 Rd7+–) 1–0. blackiwhite (1785) – sobikjr (1780), internet, 2011.

6.d4 ab5

7.ab5 Ra1 8.Ba1 c6 (8...Ne4 9.Bd3 Qh4 10.Qe2 Qf6 11.Qf3 Qh4 12.g3 Qg5=) 9.Nf3 (9.c4 Ne4 10.Bc3 Nc3 11.Nc3 Qa5 12.Qb3 dc4+=) 9...Qa5 (9...0–0 10.Nbd2 Bd7 11.bc6 Nc6 12.c4 dc4+=) 10.Bc3 Qc7 (10...Qb6 11.Bd3 cb5 12.Bd2 b4+=) 11.bc6 (11.Bd3 cb5 12.Bb5 Bd7+=) 11...bc6 (11...Nc6 12.Bd3 0–0+=) 12.Nbd2 (12.Bd3 Ba6+=) 12...Nbd7 (12...0–0+=) 13.Bd3 0–0 14.Nb3 Bb7 15.0–0 Ra8 16.h3 Be7 17.Qb1 Ne4 18.Ba5 Qc8 19.c4 Ba6 20.Qc2 c5 21.Rc1 Bc4 22.Bc4 dc4 23.Qc4 Qb7 24.dc5 Ndc5 25.Nc5 Nc5 26.Bc3 Ra4 27.Qf1 Ne4 28.Rb1 Qa8 29.Be5 ½–½. aspasio (2795) – mrred (2720), net–chess.com, 2013.

7.ab5 Bb4 8.Nd2 (8.c3 Ra1 9.Ba1 Bd6 10.c4 dc4 11.Bc4 0–0 12.Nf3 Nbd7=) 8...Ra1 9.Qa1 Bd2 10.Kd2 Nbd7 11.Nf3 Nb6 12.Ke1 0–0 =.

7.Bb5 A) 7...c6 8.Bd3 (8.Be2 0–0 9.Nf3 b6 10.Ba3 Ba6 11.Bd6 Qd6 12.0–0 Nbd7+=) 8...Na6 9.Nf3 Nb4 10.Be2 Qa5 11.0–0 0–0 12.Nbd2 Qc7=; B) 7...Bd7 8.Nf3 (8.Ne2 Bb5 9.ab5 Ra1 10.Ba1 Qd7 11.Qd3 c6 12.Nbc3 0–0+=) 8...Bb5 9.ab5 Ra1 10.Ba1 c6 11.bc6 Nc6 12.Nbd2 0–0+=.

6.Nf3 0–0

7.c4 b6 8.cd5 ed5 9.Be2 ab5 10.ab5 Ra1 11.Ba1 c5 12.bc6 Nc6 13.Nc3 Bf5 14.Nb5 Be7 15.0–0 Qd7 16.d3 Ra8 17.Qb3 Na5 18.Qb1 Nc6 19.Nbd4 Nd4 20.Nd4 Bd8 (20...Bc5 21.Nf5 Qf5 22.Bf3+=) 21.Nf5+/– Qf5 22.Bf3 Qe6 23.Qb3 Ra5 24.Bc3 Rc5 25.Bd4 Ra5 26.Rc1 Ne8 27.h3 Bc7 28.Bg4 Qd6 29.g3 h6 30.Bf3 Qe6 31.Kg2 Bd8 32.Bg4 f5 33.Bf3 Kh7 34.Ra1 Nc7 35.Ra5 ba5 36.Qa2 (36…Bf6 37.Qa5 Bd4 38.Qc7+– (38.ed4?! Qd7+/–)) 1–0. marekt – Berta3, ChessWorld.net, 2004.

7.c4 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.0–0 Qe7 12.d4 Rd8 13.Nc3 h6 14.Re1 e5 15.Nd5 (15.e4!?=) 15...Nd5=+ 16.Bd5 e4 17.Nd2 Bh2 18.Kh2 Qd6 19.Kg1 Qd5 20.Qc2 Nc5 0–1. St Jean,Benoit – Manis,Jose, corr IECG Email, 2002.

7.c4 c6 8.Nc3 Qc7 9.d4 dc4=+ 10.Nd2 Nd5 11.Bc4 Bb4 12.Qb3 ab5 13.Bd5 (13.ab5? Ra1 14.Ba1 Qa5–+) 13...Bc3 14.Qc3 ed5 15.ab5 Ra1 16.Ba1 Bf5 17.0–0 Rc8 18.Rc1 Nd7 (18...Qd8 19.bc6 Rc6 20.Qa3=) 19.e4 Be6 20.bc6 bc6 21.Bb2 h6 22.Ba3 de4 23.Ne4 Ra8 24.Bd6 Qb6 25.f3 (25.Qc6?? Qc6 26.Nc5 Qd6 27.Ne6 fe6–+) 25...Bd5 26.Ng3 Nf8 27.Nf5 ½–½. Tellier,Bernard (2035) – Van Reybrouck,Hubert (1850), corr WS/H/194 ICCF, 2009.

7.c4 c6 8.Nc3 Qc7 9.d4 dc4 10.Nd2 Nd5 11.Bc4 Bd7 12.Qb3 ab5 (12...Bh2? 13.Bd5 ed5 14.b6+–) 13.ab5 Ra1 14.Ba1 cb5 (worse is 14...Bh2 15.Bd5 ed5 16.b6+/–) 15.Nb5 Bb5 16.Qb5 (16.Bb5? Bb4 17.Bc4 Qa5–+) 16...Nc6 17.Ke2 Na7 (worse is 17...Bh2 18.g3 Bg3 19.fg3 Qg3 20.Bd5 ed5 21.Qd5+/–) 18.Qb3 Nb4 (worse is 18...Bh2 19.g3 Bg3 20.fg3 Qg3 21.Bd5 ed5 22.Qd5+–) ½–½. Rooijen Van,Peter (1675) – Babos,Istvan, CP–2011–P–00022, 2011.

7.c4 c6 8.Nc3 Bd7 9.Be2 dc4 10.Bc4 ab5 11.ab5 Ra1 12.Qa1 e5 13.d3 Re8 (13...Bg4 14.Nd2=) 14.0–0 Qc7 (14...Be6 15.Be6 Re6 16.Rd1=) 15.bc6+= Nc6 (15...bc6 16.Ng5 Re7 17.Nge4+/–) 16.Nb5 Qb8 17.Ng5 Nd8 18.Qd1 (18.Rc1 Bb5 19.Bb5 Re7+=) 18...h6 (18...Bb5 19.Bb5 Re7 20.Qa4+=) 19.Ne4 (19.Nf7 Nf7 20.Qb3 Rf8 21.Nd6 Qd6+/–) 19...Be7 (19...Ne4 20.de4 Bb5 21.Bb5+=) 20.f4+/– Ng4 (20...Nc6 21.Qb3 Rf8 22.Nf6 Bf6 23.Bd5+/–) 21.Qf3 (21.Qc1 ef4 22.Rf4 Kh7+/–) 21...ef4+= 22.ef4 Kh8 (22...Nc6 23.h3 Na7 24.Nbc3+=) 23.h3+/– Nf6? (better is 23...f5 24.hg4 fe4+/–) 24.Be5+– Qc8 25.Nbd6 Bd6 (25...Qc6 26.Ne8 Ne8 27.Qh5+–) 26.Nd6 Qa8 (26...Qc5 27.d4 Qb4 28.Ne8 Ne8+–) 27.Bf6 gf6 28.Qh5 Qa7 (28...Kh7 29.Nf7 Nf7 30.Qf7 Kh8 31.Qf6 Kh7 32.f5+–) 29.Kh2 Rf8 (29...Kg7 30.Bf7 Kf8 31.Qh6 Ke7 32.Ne8 Nf7 33.Re1 Kd8 34.Qf6 Kc8 35.Qf7 Qd4 36.Rc1 Kb8+–) 30.Qh6 Kg8 31.Rf3 (31...Qc5 32.Ne4 Qg5 33.fg5 fg5 34.Nf6#) 1–0. pierre (2045) – kostovist, internet, 2006.

7.c4 c6 8.Nc3 e5 9.d4 e4 10.Nd2 Ng4 11.cd5 Ne3 12.fe3 Qh4 13.Ke2 Bg4 14.Nf3 cd5 15.Kd2 ef3 16.gf3 Qf2 17.Qe2 Qf3 18.Bg2 Qf5 19.Qf1 Qf1 20.Raf1 ab5 21.ab5 Be6 22.Bd5 Bd5 23.Nd5 Ra2 24.Rb1 Re8 25.Kd3 f5 26.h4 Nd7 27.Rhg1 Kf7 28.Rg5 g6 29.h5 Be7 30.Ne7 Re7 31.Bc3 Nf6 32.Bb4 Rc7 33.hg6 hg6 34.Rh1 Rcc2 35.Rh6?? Ne4–+ 36.Rh7 Kg8 0–1. Connors,Donald J (2120) – Miller,Daniel I (2320), Virginia op Fredericksburg, 2001.

7.c4 Re8 8.d4 Bb4 9.Nbd2 (9.Bc3 Be7=) 9...e5 (9...ab5 10.ab5 Ra1 11.Qa1=) 10.Ne5 (10.de5 Ne4 11.cd5 Qd5=+) 10...Ne4=+ 11.Bc1 (11.Nef3 Bg4 12.Bc1 ab5 13.cb5 Bc3=+) 11...Bc3 (11...ab5 12.cb5 Nd7 13.Nef3=) 12.Ra2 (12.Rb1 ab5 13.Rb5 c6=+) 12...f6 (12...ab5 13.cb5 Nd7 14.Nef3=) 13.Nef3 c5 14.dc5 d4 15.c6 bc6=+ 16.Qb3 Nf2! 17.c5 Be6 18.Bc4 Nh1 19.Be6 Kh8 20.Kf1 de3 21.Ne4 Re6 22.Nc3 Re7 23.Kg1 Nf2 24.bc6 Nc6 25.Be3 Nh3! 26.gh3 Re3 27.Rf2 Rb8 28.Qc2 Nb4 29.Qb2 Qd3 (30.Na2 Nc6–+) 0–1. Bonetti,Shane – HUMILIATION, ICC, 2002.

7.c4 Re8 8.d4 ab5 9.c5 Bf8 10.ab5 Ra1 11.Ba1 c6 12.Qb3 Nbd7 13.Bd3 e5 14.Ne5 Ne5 15.de5 Nd7 16.Qc2 g6 17.Nd2 (17.Bd4 Ne5 18.0–0 Nd3 19.Qd3 Bf5=) 17...Nc5 18.Be2 Qg5 19.0–0 Bh3 20.Bf3 Bf5 21.e4 de4 22.Ne4 Qh4 23.Re1 cb5 24.Qb1 Ra8 25.Bd4 Ne4 26.Be4 Ra4 27.g3 (27.Bf5!? Qd4 28.Bc2+=) 27...Be4 28.Re4 (28.gh4?? Bb1 29.Rb1 Rd4 30.Rb5 Rb4–+) 28...Qd8 29.Bc3 Qd5 30.Re2 b4 31.Bb4?? (better is 31.Rd2 Qe6 32.Bd4+=) 31…Rb4–+ (31...Rb4 32.Qf1 Bc5–+) 0–1. Nenciulescu,Silviu Catalin (2055) – Ermolaev,Andrey (1850), IECG, 2004.

7.c4 Re8 8.d4 b6 9.Nc3 =+.

7.c4 Re8 8.d4 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 Nbd7 12.0–0 b6 13.Bd3 Bb7 14.Qc2 (14.Nbd2 e5 15.Bc4 e4=) 14...e5 (14...Bf3 15.gf3 Kh8 16.Nc3=) 15.Ne5 Ne5 16.de5 Be5 17.Be5 Qd5?? (better is 17...Re5 18.Rd1 Qe7=) 18.f4+– (18...Ng4 19.Nc3+– (19.Bc7 Rc8 20.Rf3 Qd7 21.Bh7 Kf8+/–)) 1–0. Sebald,Ralph – Gilbers,Alexander, Dortmund op–B, 1999.

7.Bd3 Nbd7 8.0–0 e5 9.Be2 c5 =+.

7.Bd3 Nbd7 8.ba6 ba6–/+ 9.Ra2 e5 10.Bf5 e4 11.Nd4 c5 12.Ne2 Ne5 13.Bc8 Qc8 (13...Rc8 14.0–0–/+) 14.0–0 (14.d4 cd4 15.Bd4 Rb8–/+) 14...Rb8 15.Be5 Be5 16.h3 Qe6 (16...Re8 17.d4 ed3 18.cd3–/+) 17.d4 ed3 18.cd3 d4 19.Rc2 de3 20.fe3? (better is 20.Rc5 ef2 21.Rf2–/+) 20...Nd5–+ 21.Rc5 Ne3 22.Qe1 (22.Qc1 Nf1 23.Qf1–+) 22...Nf1 23.Re5 Qe5 24.Qf1 Rb1! (25.Qb1 Qe2–+) 0–1. marekt – eralos, gameknot.com, 2001.

7.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 Bd6 5.Nf3 0–0 6.Be2 a6 7.a4).

7.c4 ab5

8.cb5 Nbd7 9.Be2 c5 10.0–0 c4 (10...e5 11.d3+= (11.Nh4 Nb6 12.a5 Nc4 13.Bc4 dc4 14.Qc2 Ra5 15.Ra5 Qa5–/+) 11...Qc7 12.h3 Rd8 13.Qc2 b6 14.Nbd2 Bb7 15.Rfd1 Ra7+=; 10...Re8 11.d4 (11.d3 e5 12.Qb3 b6 13.Rc1 Qe7 14.Nbd2 Rd8 15.Qc2 Bb7+=) 11...c4 12.Qc2 Qa5 13.Bc3 Qc7 14.a5 Ne4 15.Rc1 Nc3=) 11.d3= (11.Bc3 e5 12.a5 Re8 13.Na3 Nc5 14.b6 Nb3 15.Ra2 e4–/+) 11...cd3 12.Bd3 (12.Qd3 e5 13.Qc2 Re8 14.Rd1 Qa5 15.Bc3 Qc7+=) 12...Nc5 (12...e5 13.Bc2 Qc7 14.h3 Rd8 15.Nbd2 Nc5+=) 13.Bc2 Nfe4 (13...Bd7 14.Bd4 Qe7 15.Ne5 Rfc8=) 14.Qd4 Qf6 (14...f6 15.Nc3 Nc3=) 15.Nbd2 (15.Qf6 Nf6=) 15...Qd4 16.ed4 Nd2 17.Nd2 ½–½. phildo (1840) – db_so (1860), gameknot.com, 2013.

8.cb5 Nbd7 9.Be2 c5 10.bc6 bc6 11.Qc2 (11.0–0 e5 12.d4 e4 13.Ne5 Qc7 14.Nd7 Nd7 15.h3 Ba6+=) 11...c5 12.Na3 e5 13.Nb5 Bb8 14.d3 d4 15.0–0 Nd5 =.

8.cb5 Nbd7 9.Be2 c5 10.d3 A) 10...b6 11.0–0 (11.Qc2 Re8 12.0–0 e5 13.Rc1 Qe7 14.Nbd2 e4 15.de4 Ne4=) 11...e5 12.Qc2 Re8 13.Rc1 Qe7 14.Nbd2 Rd8 15.Nb3 e4=; B) 10...e5 11.Qc2 (11.0–0 Qc7 12.h3 Rd8 13.Qc2 b6 14.Nbd2 Bb7 15.Nh4 Re8+=) 11...Kh8 12.0–0 Re8 13.Rc1 Kg8 14.Nbd2 Qb6 15.Bc3 Nb8=.

8.cb5 Nbd7 9.Be2 c5 10.d4 A) 10...c4 11.0–0 (11.Nc3 Qc7 12.Ba3 Ba3 13.Ra3 Qd6 14.Ra1 Qb4 15.Qd2 Nb6=) 11...Ne4 12.Nc3 Nc3 13.Bc3 Nf6 14.Qc2 Ne4 15.a5 Bd7=; B) 10...Ne4 11.0–0 (11.dc5 Qa5 12.Nbd2 Ndc5 13.0–0 Nd2 14.Nd2 Na4 15.Nf3 Bd7+=) 11...c4 12.Qc2 Ndf6 13.Ba3 Ba3 14.Na3 Qa5 15.Bd1 Nc3+=.

8.cb5 Nbd7 9.Be2 Nc5 10.Nc3 (10.0–0 Ncd7=) 10...e5 11.0–0 Nce4 (better is 11...e4!? 12.Nd4 Re8=+) 12.Ne4+= Bg4?? (better is 12...de4 13.Ne5 Re8+/–) 13.Nd6+– Bf3 14.Nb7 Be2 15.Qe2 Qb8 16.Nc5 Qb6 17.Rfc1 Rfe8 18.d4 e4 19.Na6 Rec8 20.Ba3 c6 21.Bc5 Qa5 22.Qb2 Qd8 23.Qb4 Qd7 24.h3 Qe6 25.Bb6 Ne8 26.Nc5 Qf5 27.a5 Nd6 28.Na4 Nb5 29.Rc5 Qd7 30.Rac1 Nd6 31.Nb2 Rab8 32.a6 Nb5 33.Qa5 Ra8 34.Rb5! cb5 35.Rc8 Qc8 36.a7 Qc1 37.Kh2 Qb2 38.Bc7 h6+/– 39.Qa6 Qb4? 40.Qb7+– Qf8 41.Bb8 Ra7 42.Ba7 Qd6 43.g3 Qf6 44.Kg2 Qf3 45.Kg1 Qd1 46.Kh2 Qc2 47.Qb8 Kh7 48.Qf4 f6 49.Kg2 b4? 50.Qf5 Kh8 51.Qd5 b3+/– 52.Qc5?? Qc5–+ (53.dc5 b2–+) 0–1. gtate – sbwiik, net–chess.com, 2001.

7.c4 Nbd7

8.Nc3 ab5 9.ab5 Ra1 10.Qa1 Nb6 (10...dc4 11.Bc4 e5 12.d3=+) 11.cd5 ed5 12.d3 (12.Be2 Qe7=+) 12...c5 (12...Re8 13.Be2=+) 13.bc6 bc6 14.Be2 (14...Bg4 15.Na2=+) =+. Mehlhorn,U – Blatnik,J, M–356–D, 2001.

8.Nc3 ab5 9.Nb5 Bb4 10.cd5 Nd5 11.Be2 c6 12.Nc3 Qc7 13.Nd5 ed5 14.Qc2 Qd6 15.0–0 Re8 16.Rab1 b6 17.Rfc1 c5 18.Bb5 Re6 19.d4 Rg6 (19...c4 20.Ng5 Rh6 21.h3=) 20.e4 Qf4 (20...Bb7 21.dc5 Bc5 22.Bd7 Qd7 23.Ne5 Qa4 24.Ng6 Qc2 25.Rc2 hg6 26.ed5 Bd5 27.Rbc1+=) 21.ed5 Qg4 22.Ne1 (22.Bf1 Rd6 23.dc5 bc5+/–) 22...Nf6 (22...Be1 23.f3 Qf3 24.Re1 Qd5 25.Bc4+/–) 23.Be2 (23.dc5 Be1 24.f3 Qf3 25.Bf6 Bf5–/+) 23...Qh4 (23...Qf4 24.dc5 bc5 25.Rd1+/–) 24.dc5 Bc5 25.Bd3 Rg4 26.Bf6 Qf6 27.Bh7 (27.a5!? Ra5 28.Bh7 Kf8 29.Be4+/–) 27...Kh8+= 28.Bd3 Rga4 29.Qe2 (29.Qb2 Qb2 30.Rb2 Ra2 31.Ra2 Ra2+/–) 29...Bg4= 30.Nf3 Rf4 31.Re1 g5 32.Qb2 (32.Be4 Bf3 33.Bf3 g4–/+) 32...Bf3=+ 33.gf3 Bd4 34.Qc2 Rh4 35.Re4 Be5 36.Qc6 Bh2 37.Kg2 Qc6 38.Rh4 gh4 39.dc6 Bc7 40.Rb4 Kg7 41.Rh4 Kf6 42.f4 Ra4 43.Kf3 Ra3 44.Ke2 Ke6 45.f5 Kd5 46.Be4 Ke5 47.f3 Bd6 48.Rh1 Ra2 49.Kd3 Ra3 50.Kc2 Ra2 51.Kb1 Rd2 52.Rh8 Rd1 53.Kb2 Bc7 54.Rc8+– Kd6 55.f6 Rd2 56.Kb3 Rd1 57.Re8 Ra1 58.Re7 Ra7 59.Rf7 Ke6 60.Bg6 b5 61.f4 b4 62.Kc4 Kd6 63.Rd7 Ke6 64.f7 (64...Ra8 65.f5 Kf6 66.Rc7+–) 1–0. pierre – Jagermeister, internet, 2006.

8.Nc3 ab5 9.Nb5 Be7 10.d4 +=.

8.Nc3 Nb6 9.d3 h6 10.Be2 ab5 11.ab5 Ra1 12.Qa1 dc4 13.dc4 Qe7 (13...e5 14.0–0 Qe7 15.Na4) 14.0–0 e5 15.Na4 Na4 16.Qa4 e4 17.Nd4 Qe5 18.g3 Bg4 19.Qc2 Qh5 20.Ra1 Be2 21.Qe2 Ng4 22.h4 Qg6 23.Ra4 Ne5 24.Ba3 Ba3 25.Ra3 Qd6 26.Ra2 Qb4 27.Qc2 Nd3 28.Qb3 Qe1 29.Kg2 Re8 30.Qa3 Qd1 31.Qa5 b6 32.Qa3 Ne1=+ 33.Kh3 Nf3 34.Ra1 Qd2 35.Qa2 Qd3 36.Qb2 Ne5 37.Qc1= g6 38.c5 bc5 39.Qc5 Qd2 40.Rf1 Nd3 41.Qc6 Rd8 42.Qc7 Rd4 43.ed4 ½–½. marre (2170) – Oldsoft (2200), Rated game, 5m + 0s, 2010.

8.Nc3 Nb6 9.cd5 ed5 10.ba6 ba6 11.a5 Nbd7 12.Be2 Rb8 13.Ra2 c5 14.0–0 Bc7 15.Qc2 Ba5 (15...Re8 16.Rb1=+) 16.Rfa1= Bc3 (16...Bc7 17.Ba6 Ba6 18.Ra6+=) 17.Bc3+= Ne4 18.Ba6 Nc3 (18...Ba6 19.Ra6 c4 20.Ra7=) 19.Qc3 Qb6 20.Bd3 Bb7 (20...Nf6 21.Bc2=) 21.Ra5 (21.Qc2 g6+=) 21...Bc8 (21...Ra8 22.Ra8 Ra8 23.Rb1=) 22.Rb5 (22.Qc2 h6+=) 22...Qd6+= 23.Rb8 Qb8 24.Qc2 h6 25.Bh7 Kh8 26.Bf5 Nf6 27.d4 Bf5 28.Qf5 c4 29.Ne5 Qb2 30.Rb1 Qa2 31.h3 Qa7 32.Ng4 Ng4 33.hg4 Qa2 34.Rb5+= Qa8 35.Rd5+/– g6 36.Qe5 Kg8 37.Ra5 Qb7 38.Rb5 Qd7 39.g5 hg5 40.Qg5 Rc8 41.Rd5 Qb7+= 42.Rd8 Rd8 43.Qd8 Kg7 44.Qa5 Qb1 45.Kh2+= Qf5 46.Qd2 Qd3 47.Qa5 c3 48.Qe5 Kh7 49.Qc7+= c2 50.Qf7+/– Kh8 ½–½. Hirtreiter,Michael – Langrock, corr BdF Germany, 1987.

8.Nc3 Nb6 9.cd5 Nbd5 10.ba6 ba6 11.Nd5 ed5 12.Be2 c5 13.Qc2 Re8 14.0–0 Ne4 15.Rac1 Rb8 16.d3 Ng5 17.Ba3 Bf5 18.Rfe1 Rc8 19.Qa2 d4 20.ed4 Nf3 21.Bf3 cd4 22.Bd5 Re1 23.Re1 Ba3 24.Bf7 Kf8 25.g4 Qf6 26.Qa3 Kf7 27.gf5 Qf5 ½–½. Boehnke,Hartmut – Wolter,Harald, DESC, 2004.

8.Nc3 c6 9.d4 Bb4 10.bc6 bc6 11.Be2 (11.Bd3 Qa5 12.Qc2 dc4 13.Bc4 c5+=) 11...dc4 (11...Qa5 12.Qb3+=) 12.Nd2 (12.Bc4 Bb7=) 12...c5 13.Nc4 cd4 (13...Nd5 14.Qd3+=) 14.Qd4= Bb7 (14...Nc5 15.Qd8 Rd8 16.0–0=) 15.0–0 White plans a5 15...Qc7 16.a5 (16.Rfd1 Rfd8=) 16...Rad8 (16...Rab8 17.Qh4=) 17.Na4 (17.Qh4 Be7=) 17...Qc6 (17...Ba5 18.Na5 Qa5 19.Qa7=) 18.f3 (18.Bf3 Qb5 19.Bb7 Qb7=) 18...Nc5 19.Nd6 Nd3 (worse is 19...Qd6 20.Qb4 Na4 21.Ra4+= (21.Qb7?! Qd2 22.Bf6 Nc5+=)) 20.Qd3 Bd6 (worse is 20...Rd6 21.Qb3 Bd2 22.Ba3+/–; worse is 20...Qd6 21.Qd6 Bd6 22.Bf6 gf6 23.Rab1+/–) 21.Rfd1?? (better is 21.Rfc1 Qd5 22.Qd5 Nd5 23.Kf2=) 21...Bh2!–+ (21...Bh2 22.Kh2 Rd3 23.Rd3 Qc2–+) 0–1. forsetinn (2470) – objorn (2425), gameknot.com, 2015.

8.d4 =+.

8.Be2 ab5 9.ab5 Ra1 10.Ba1 dc4 11.Bc4 Nb6 12.d3 (12.Be2 Re8=+) 12...Nc4 (12...Qe7 13.0–0–/+) 13.dc4 Nd7 (13...Qe7 14.0–0–/+) 14.0–0 (14.Nbd2 e5=+) 14...e5 15.Nc3 Nc5 16.e4 c6 17.Qe2 f6 18.Bb2 Be6 19.Rd1 Qc7 20.Nh4 (20.g3 Ra8–/+) 20...Rd8 21.Nf5 Bf8 22.Ne3 Rd4 23.bc6 bc6 24.g3 Qf7 25.h4 Rd1 26.Qd1 Bc4 27.Qd8 Be6 28.Ba3 Qd7 29.Qa8 Qd4 30.Ned1 Bd7 31.Bc5 Qc5 32.Qa2 Kh8 33.Kg2 Qa3–+ 34.Qf7 Qd6–/+ 35.Ne3 Be6 36.Qb7 Kg8 37.h5 Qd7–+ 38.Qb6 Bf7 39.g4 Be6 40.Kf3 Kf7 41.Na4 Be7 42.Qa6–/+ g6 43.hg6 hg6 44.Nb6 Qc7 45.Nbc4 Kg7 46.Qa8 Bc5 47.Qa1 Bd4–+ 48.Qa3 Qd8 49.Kg3 f5! 50.ef5 gf5 51.Nf5 Bf5 52.gf5 Qg5 53.Kh2 Qf5 54.Qg3–/+ Kf6 55.Kg2 c5 56.Qh4 Qg5 57.Qg5= Kg5 58.Kf3 Kf5 59.Ke2 Ke4 60.f3 Kf4 61.Nb6 e4 62.fe4= Ke4 63.Kd2 ½–½. pierre – JML59, internet, 2009.

8.Be2 ab5 9.ab5 Ra1 10.Ba1 dc4 11.Bc4 Qe7 (11...e5 12.Qc2=+) 12.Nc3 (12.d4 Nb6 13.Bd3 Nbd5=) 12...Nb6 13.Bd3 e5 14.Qb1 h6 15.0–0 Bg4 16.Qc2 (16.Be4 Ne4 17.Qe4 Bc8=+) 16...Ra8 17.Bb2 (17.Be4 Ne4 18.Qe4 Bc8=+) 17...Qe6 (17...Bf3 18.gf3 Nfd7 19.Ne4=+) 18.Nh4 Qd7 19.Ra1 Ra1 20.Ba1 Be6 21.Nf3= Qe8 22.Qb1 Qa8 23.Ne4 Ne4 24.Be4 f6 25.Bh7 Kh8 26.Bc3 Na4 27.Be4 Nc3 28.dc3 Qa3 29.Qe1 Qb2 30.Bb7 Qb5=+ 31.Ba8 c6 32.Qf1 Qa4 33.Bb7 Bd5 34.Qb1 g6 35.Bc8 Qa3 36.Nd2 Kg7 37.c4 Bf7 38.Bd7 Qa5 39.Ne4 Qc7 40.Qd3 Be7 41.g4 Bc4!–+ 42.Qc4 0–1. wiking – ArmandoAzevedo, queenalice.com, 2009.

6.f4 0–0

7.Nf3= ab5 8.ab5 Ra1 9.Ba1 Nbd7 10.Be2 Re8 11.0–0 e5 12.fe5 Ne5 13.Ne5 Be5 14.Be5 Re5 15.Rf4 Ne4 16.Bd3 Nc5 (16...Qg5 17.Qf3 Qe7 18.Be4 de4 19.Qe2=) 17.Qf1 (17.Bh7!? Kh7 18.d4 Re3 19.Qh5 (< 19.dc5 Qe7 20.Qd4 Re1 21.Rf1 Bf5=+) 19...Kg8 20.Qf7 (20.dc5? Re1 21.Rf1 Qe7–+) 20...Kh7 21.Kf2+=) 17...Nd3 18.cd3 Qe8 19.d4 Rg5 20.Nc3 Bh3 21.Rf2 Qd7 22.Kh1 Bf5 23.Qa1 Be6 24.Qa8 Qc8 25.Qc8 Bc8 26.Rf1 Kf8 27.Rc1 Ke8 28.Ra1 Kd8 29.Ra8 Kd7 30.Na4 b6 31.Nc3 Bb7 32.Rb8 Bc8 33.Na2 c5 34.Rb6 (34.bc6!? Kc7 35.Ra8+/–) 34...cd4= 35.Kg1 de3 36.de3 Kc7 37.Rc6= Kb8 38.Nc3 Bb7 39.Rc5+= Rg6 40.Nd5 Rg5 41.e4 Re5 42.Kf2 Re4 43.Ne3 Ra4 44.h3 Ka7 45.Nc4 Ra2 46.Ke3 Rg2 47.Rc7 Rg3 48.Kf4 Rf3 49.Kg4? h5 50.Kg5 Rc3 51.b6 Kb8 52.Nd6 Rc7 53.bc7 Kc7 54.Nf7 Bf3 55.h4 Bd1 56.Kg6 Kd7 57.Kg7 Ke7 58.Ng5 Kd6 59.Kf6 Kd5 60.Kf5 Bg4 61.Kf4 Kd6 62.Ke4 Ke7 63.Ke5 Kf8 64.Kf6 Kg8 65.Kg6 Kh8 ½–½. Lippmann,Ulrich (1875) – Bodenstein,Joachim (1910), 40sen.LEM N'sachsen, 2006.

7.Nf3 c5 8.Be2 =.

7.Nf3 Nbd7 8.Be2= ab5 9.ab5 Ra1 10.Ba1 c5 11.0–0 b6 12.Ne5 Bb7 13.Qe1 Qc7 14.Nd7 Nd7 15.Bf3 (15.Qg3 e5=) 15...Ra8=+ 16.Nc3 Nf6 17.Qg3 Be7 18.d3 (18.Qf2 c4=+) 18...Ra5=+ 19.Bb2 Ne8 (19...h6 20.Qe1=) 20.Ra1 (20.Rb1 Bf6=) 20...Bf6 (20...d4!? 21.Ne2 Bf3 (21...de3 22.Ra5 Bf3 23.Ra6 Be2 24.Ra8=+) 22.Qf3 Rb5=+) 21.Ra5= ba5 22.Na4 Bb2 23.Nb2 Qd7 24.c4 dc4 25.dc4 Qd2 26.Bb7 Qc1 27.Kf2 Qb2 28.Kf3 a4?? (better is 28...Qc1–/+) 29.Qg5+/– a3?? (better is 29...Qd2 30.Qe7 Nf6 31.Qc5 h6+/–) 30.Qd8?? (30.Qe7 g6 31.f5–+ (31.Qc5?? a2 32.Qc8 a1Q 33.Qe8 Kg7–+)) 30...g6–+ 31.Qe8 Kg7 32.Bc8 a2 33.Be6 a1Q 34.Qf7 Kh6 35.Qf8 Qg7 36.Qc5 Qf1 37.Kg3 Qf6 38.Bc8 Qe1 39.Kf3 Qd1 40.Ke4 Qfd8 41.Qg5 Qg5 42.fg5 Kg5 43.Bb7 Kf6 44.Bd5 h6 45.h3 Ke7 46.Ke5 Qd2 47.Kf4 Qf2 48.Ke4 Qg2 49.Kd4 Qh3 50.b6 Qh4 51.Kc5 Qf2 52.b7 Qe3 53.Kc6 Qe5 54.Kb6 Qd6 55.Ka7 Qc5 56.Ka6 Qb4 57.Ka7 Qa5 58.Kb8 h5 (59.Bf3 h4–+) 0–1. Solare,Juan – Hemzo,Miguel Angelo, Orang–Utan Invitational, 2001.

7.Nf3 Nbd7 8.Be2= Nb6 9.ba6 ba6 10.a5 =.

6.f4 ab5

7.ab5 Ra1 8.Ba1 0–0 9.Nf3 Bd7 10.Be2 Bb4 11.c4 dc4=+ 12.Bc4 Ne8 13.Qc2= Be7 14.Bd3 f5 15.0–0 Nd6 16.Qb3 c5 17.Na3 Qb6 18.Ne5+= Bc8 19.Rb1 Qd8 20.Nac4 Qc7 21.b6 Qd8 22.Nd6 Qd6 23.Be2 Qd2 24.Bc4 Kh8 25.Be6 Nc6?? 26.Nf7 Rf7 27.Bf7 Bh4 28.Bg8 Qd7 29.Rd1 Qe7 30.Bd5 Nb4 31.Bf3 Qf8 32.Qc4 h6 33.Qb5 Qe7 34.g3 Bf6 35.Bf6 gf6 36.Kf2 Kg7 37.Qa4 Na6 38.Bb7 Qb7 39.Qe8 Nb4 40.Rd8 Nd3 41.Kg1 (41...Be6 42.Qe6+–; < 41.Rd3 Qa6 42.Qe7 Kg6+–) 1–0. Van der Brink,J – Meischner,R, corr, 1991.

7.ab5= Ra1 8.Ba1 Nbd7 9.Nf3 c5 10.bc6 bc6 11.Be2 0–0 12.0–0 Qa5 13.Be5 Be5 14.Ne5 c5 15.Nc6 Qb6 16.Ne7 Kh8 17.Nc8 Rc8 18.c4 d4 19.Na3 Ra8 20.Nb5 Ra2 21.Bf3 e5 22.Bg4 e4 23.Bd7 Nd7 24.Qb1 Rd2 25.Qe4 Nf6 26.Qa8 Ng8 27.e4 Qg6 28.e5 Qd3 29.h3 Rd1 30.Rd1 Qd1 31.Kh2 Qf1 32.Qe4 g5 33.fg5 Ne7 34.Nd6+/– d3 35.e6 fe6 36.Qe5 Kg8 37.Qe6 Kf8 38.Qe3 Kg8 39.Ne4 Qe2 40.Qf4 Ng6 41.Qb8 Kf7 42.Qc7 Ne7 43.Qf4 Kg8 44.Qe5 Ng6 45.Qd5 (45...Kg7 46.Ng3+– (46.Nc5 Qe5 47.Qe5 Ne5 48.Nd3 Nd3=+)) 1–0. Muri,Heinrich (2345) – Calhau,Eduardo JG (2425), EU–ch65 sf08 email, 2003.

6.f4 Nbd7

7.Nf3 0–0 8.Be2= ab5 9.ab5 Ra1 10.Ba1 c5 11.0–0 Qc7 12.c4 b6 13.cd5 ed5=+ 14.Nh4 Bb7 15.Nf5 Ra8 16.Bb2 Bf8 17.Bf3 g6 18.Ng3 c4 19.Qc2 Qc5 20.Nc3 Bg7 21.Rb1 Qd6 22.Na4 Ne8 23.Ne2 f5 24.Bg7 Ng7 25.Rd1 Ne6 26.d3 cd3 27.Rd3 Nec5 28.Nc5 bc5 29.Nc3 Nb6 30.Rd1 Qe7 31.Qe2 Kf8 32.Qf2 Ra3 33.Rc1 h6 34.h3 Kg8 35.Qd2 Kh7 36.Kh2 Rb3 37.Bd5 Nd5 38.Nd5 Qd6 39.Rd1 Qd5 40.Qd5 Bd5 41.Rd5 Rb5 42.g4 fg4 43.hg4 Kg7 44.Kg3 Rb3 45.Kf3 c4 46.Rc5 c3 47.Ke4+/– Kf6 48.Kd4 Rb1 49.Rc3 Rg1 50.Rc6 Kf7 51.Ke5 Rg4+= 52.Rc7 ½–½. Benassi,Aspasio – Martucci,Massimo, corr ITA/3/26, 2002.

7.Nf3 0–0 8.Be2= c5 9.0–0 =.

7.Nf3 Qe7

8.d4 0–0 9.Bd3 ab5 10.ab5 Ra1 11.Ba1 c5 12.bc6 bc6 13.0–0 c5 14.c3 (14.dc5 Bc5 15.Bd4 Bb7=) 14...Bb7 15.Nbd2 c4 16.Bc2 h6 17.Ne5 Ra8 18.Qb1 Rb8 19.Qe1 Nb6 20.Qe2 Ra8 21.Rb1 Qc7 22.Qe1 Ne4 23.Bb2 f6 24.Ng4 Ra2 25.Qc1 Nd2 26.Qd2 Bc6 27.Qc1 Qa7 28.Ra1 Ra1 29.Qa1 Qa1 30.Ba1 Kf7 31.g3 Ba4 32.Ba4 Na4 33.Kf1 h5 34.Nf2 e5 35.Ke2 Ke6 36.Nd1 (36.fe5 fe5 37.e4 g5+=) 36...Kf5 37.Nf2 Bc7 38.Nd1 g5 39.de5 fe5 40.e4 Ke4 41.fg5 Nc5 42.Bb2 Ne6 43.Bc1 Bb6 44.Bd2 Kf5 45.h4 Nc7 46.Nb2 Nb5 47.Na4 Ba7 48.Nb2 Nd6 49.Be1 Bb6 ½–½. Muri,Heinrich (2375) – Krabbe,Wolf_Dieter (2320), WC35/pr05 ICCF, 2011.

8.Be2 e5 9.fe5 Be5 =.

8.Be2= e5 9.fe5 Ne5 10.0–0 0–0 11.Nc3 c6 12.Nd4 Re8 13.Qe1 c5 14.Nf5 Bf5 15.Rf5 d4 16.Nd1 Qe6 17.Qf1 Ne4 18.d3 (18.ed4 cd4 19.d3 Nd2–/+) 18...Nd2–/+ 19.Qf2 ab5 (19...Ng6 20.e4 Ne7 21.Rh5 ab5 22.Bc1 Ra4 23.Ra4 Ne4 24.Ra8 Ra8 25.de4 Qe4 26.Bf3–/+ (26.Bb5? Ra1 27.Bd3 Rc1 28.Be4 Rd1 29.Qf1 Rf1 30.Kf1 g6–+)) 20.ed4 cd4 21.ab5 Ra1 22.Ba1 g6 23.Rf6 Ng4 24.Re6 Bh2 25.Kh1 Nf2 26.Kh2 Re6 27.Nf2 Re2 28.Bd4 f5 29.c4 g5 30.Bb6 Kf7 31.Nh3 Kg6 32.Ng1 Nf1 33.Kh1 Ra2 34.c5 Rb2 35.Nf3 f4 36.g4 Ne3 37.Ne5 Kf6 38.d4 Rb5 39.Bd8 Ke6 40.Bg5 Rb1 41.Kh2 Rf1 42.Bd8 Kd5 43.Bb6 h6 44.Bc7 Ke4 (44...Ke4 45.c6 bc6–+) 0–1. Kaltschmidt – Woelfelschneider,Peter, 2010.

8.Ne5 ab5 9.Bb5 0–0 10.0–0 Ne4 11.Nd7 Bd7=+ 12.Nc3 Bb5 13.Nb5 (13.ab5 Ra1 14.Ba1 Nf6=) 13...Bc5 14.Rf3 c6 15.Nd4 Bb4 (15...Ra6 16.d3 Nf6 17.Nb3=+) 16.c3 Bd6 17.Rh3 (17.d3 Nc5=+) 17...g6 (17...Rfe8 18.d3 Nf6 19.Qb3=+) 18.Nb3= e5 (18...Nc5 19.Nc5 Bc5 20.Qb3=+) 19.d3 Nf6 20.fe5 Qe5 21.a5 h5 22.Qd2 Qe7 23.c4 dc4 24.Bf6 Qf6 25.dc4 Rfd8 26.Rf1 Qe6 27.Qc2 Rd7 28.Rhf3 Re8 29.Rd1 Bc7 30.Rd7 Qd7 31.c5 Qd5 32.Qb1 Re7 33.Qc2 h4 34.h3 Re4 35.Nd2 Rb4 36.Rf2 Ba5 37.Rf1 Bd8 38.Kh1 Be7 39.e4 Qd4 (39...Qc5?! 40.Qa2 Kg7 41.Qf7 Kh6 42.Qe8=+) 0–1. Taulien,Hans_Juergen (2350) – Rohs,Rudolf W (2470), RSL4, 2006.

8.Ne5 ab5 9.Bb5 0–0 10.0–0 Ne4 11.Qg4 f6 12.Bd7 Bd7 13.Nd7 Qd7 14.d3 f5 15.Qh4 Nc5=+ 16.a5 Na4 17.Be5 Ra5 18.Nd2 Be5 19.fe5 c5 20.Nb3 Raa8 21.Ra3 Ra6 22.Rfa1 Rfa8 23.R3a2 b5 24.Nd2 c4 25.Nf3 Nc5 26.Ra6 Ra6 27.Rb1 Qc7 28.Qd4 cd3 29.cd3 Ra4 30.Qb2 b4 31.Ne1 Qa5 32.Qc1 Ra3 33.Qd1 Ra2 34.Qc1 Qb5 35.Qd1 Ra3 (36.d4 Ne4–+) 0–1. Taulien,Hans_Juergen – Karkuth,Siegfried, remoteschach.de, 2002.

5.a4 Bd7

6.Na3 c5 7.Nf3 Bd6 8.c4 Qe7 9.Be2 0–0 10.0–0 a5 (10...e5 11.d4 cd4 12.ed4=) 11.Qb3 dc4 (11...Rd8!?+=) 12.Nc4+/– (worse is 12.Bc4 Bc8+=; 12.Qc4?! e5=) 12...Nd5 13.Nd6 Qd6 14.Be5 Qe7 15.Rac1 f6 16.Bg3 Be8 17.d4 Nd7 18.Rfd1 Bf7 19.e4 Nb4 20.Qb2 Nb6? (better is 20...Rac8+/–) 21.dc5+– (21.Rc5 Na4 22.Qc1 Nc5 23.Qc5 Qc5 24.dc5 e5–+) 21...Nc8 22.Bd6 Nd6 23.cd6 (worse is 23.Rd6 e5+–) 23...Qd8 24.e5 Nd5 25.Rc4 Qd7 26.Bd3 Rfd8 27.Qb1 g6 28.Rcc1 fe5+/– 29.Ne5 Qd6 30.Nf7 Kf7+= 31.g3 Rac8 32.Qa1 Rc1 33.Rc1 Nb4 34.Bf1 Kg8 35.Bg2 Nd5 36.Qa2 Qe5 37.Bd5 ed5 38.Kf1 Kf7 39.Re1 Qd6 40.Qb3 Rd7 41.Qe3 Re7 42.Qf3+= Ke8 43.Rc1 Qe5 44.b6 Qe4 45.Rc8 Kd7 46.Rc7 Kd6 47.Qf6+/– Re6?? 48.Qf8+– Ke5 49.f4 Kd4 50.Qg7 Ke3+/– 51.Qc3 Qd3 52.Kg2?? Qc3–/+ 53.Rc3 Kd4 54.Rc7 Rb6 55.Rh7 Kc4 56.Rd7 d4 57.Kf3 d3 58.Ke3 Re6–/+ 59.Kd2 Re2 60.Kd1 Rh2 0–1. Peter,Falco – Winand,Edgar (1815), Karl Mala mem op, 2006.

6.c4 Be7 7.Nc3 =+.

6.Nf3 b6 7.c4 c6 8.Nc3 Bb4 9.Qb3 Bc3 10.Bc3 ab5 11.ab5 Ra1 12.Ba1 cb5 (12...dc4 13.Bc4 0–0 14.0–0+=) 13.cb5 0–0 14.Be2 Ne4 15.0–0 g5 (15...f6 16.Rc1+=) 16.Qb2 f6 17.d3 Nd6 18.Ng5 h6 19.Nf3 Bb5 20.Nd4 Bd7 21.Bg4 Re8 22.f4 Re7 23.Rf3 e5 24.Bd7 Nd7? (better is 24...ed4 25.Bh3 Nc6+/–) 25.Nc6+– Qe8 26.Ne7 Qe7 27.fe5 Ne5 28.Rg3 Kf7 29.Qb6 Nf5 (29...Qb7 30.Qb7 Nb7 31.Be5 fe5 32.Rf3 Kg6 33.g4+–) 30.Be5 Qe5 31.Rf3 Kg6 32.d4 Qe4 33.Qb8 Kf7 34.Qf4 (34.Qc7 Ne7+–) 34...Ke6? (34...Qf4 35.Rf4 Ne3+–) 35.Qe4 de4 36.Rf4 1–0. Hal1958 – Joao cxv, playchess.de, 2002.

6.f4 c5 7.c4 Be7 8.Nf3 0–0 9.Nc3 Qc7 10.Ne5 Bd6 11.Qc2 dc4 (11...d4 12.Ne2+=) 12.Nc4 Be7 13.Be2 ab5 14.ab5 Ra1 15.Ba1 Nd5 16.Nd5 (16.0–0 b6+=) 16...ed5= 17.Be5 Qd8 18.Nd6 (18.Nb2 f6 19.Bc3 Qb6=) 18...Qb6 Exerts pressure on the isolated pawn (18...f6!? 19.Qc5 Be6 (19...fe5?! 20.Qd5 Kh8 21.Nf7 Rf7 22.Qf7+=) 20.Nb7 Bc5 21.Nd8 Rd8–/+) 19.Nf5= Bf6 20.0–0 c4 (worse is 20...Bb5 21.Qb1 c4 22.Nd4 Be5 23.fe5+–) 21.Nd4 Be5 22.fe5 Qc7 (worse is 22...Bb5 23.Rb1 Nc6 24.Nb5 (24.Rb5?! Nd4 25.Rb6 Nc2=) 24...Ne5 25.Qf5+–) 23.e6 Be8?? (23...Be6 24.Bd3 g6 25.Bg6 hg6 26.Ne6 fe6 27.Qg6 Qg7 28.Qe6 Kh7 29.Qd5 Rf1 30.Kf1 Qc7+=) 24.Bg4?? (24.Bf3 b6+–) 24...g6? (better is 24...Qd6+=) 25.Bf3 Qe5 26.Bd5! fe6? (26...Qd5 27.ef7 Deflection (27.e7 Passed pawn)) 27.Rf8 Kf8 28.Ne6 Ke7 29.Qc4 Qa1 (29...Bf7 30.Nf4 Bd5 31.Nd5 (31.Qd5?! Qd5 32.Nd5 Kd6+–) 31...Kd8 32.d4+–) 30.Kf2 Qf6 31.Ke2 Qe5 32.Qh4 Kd6 (32...g5 33.Qh7 Kd6 34.Bc4+–) 33.Qd8 Nd7 34.e4 (34.Nc7 Qh2 35.Ne8 Kd5 36.Qd7 Kc4 37.d3 Kb4+–) 34...Qh5 (34...Bf7 35.d4 Qh5 36.Kf2 Be6 37.Bb7+–) 35.Kd3 (better is 35.Ke1 Bf7 36.Nf8 Bd5 37.Nd7 Qh6 38.Nf6 Kc5 39.Qd5 Kb4+–) 35...Bf7 36.Qc7 Ke7 37.Nf4 (37.Nc5 Be8 38.Nd7 Bd7 39.Qb7 Qd1+–) 37...Qg5 (37...Qe5 38.Qe5 Ne5 39.Kd4 Bd5 40.Ke5 Bc4 41.Nd5 Kd8+–) 38.Bf7 Qb5 39.Bc4 Qb1 40.Ke3 Qe1 41.Be2 (41.Kf3 Qd1 42.Be2 Qb3 43.Kg4 Qa4 44.Qb7 Qc6 45.Qc6 Ne5 46.Kg5 Nc6+–) 41...g5 (41...Qg1 42.Kf3 g5 43.Nd3+–) 42.Nd5 Ke6 43.Qg3 (43.d3 h5+–) 43...Qc1 (43...Qg3 44.hg3 Ne5+–) 44.Bg4 (44.Bg4 Kf7 45.Qf3 Kg7 46.Bd7 Qe1 47.Kd3+–) 1–0. Grabmeier,Johannes (1930) – Riedl,Max (1885), Deggendorf op, 2006.

6.f4 c6 7.ba6 Na6 8.Nf3 Be7 9.Be2 0–0 10.0–0 c5 11.Ne5 c4 12.d4 Nc7 13.c3 b5 14.Nd7 Qd7 15.ab5 Nb5 16.Nd2 Rfb8 17.Qc2 Qb7 18.Ra8 Ra8 19.Ra1 Ra1 20.Ba1 Qa7 21.Bb2 Qa2 22.Qb1 Qb1 23.Nb1 Ne4 24.Bf3 f5 25.Be4 fe4 26.Kf2 Kf7 27.g4 g6 28.Kg3 Ke8 29.h4 Kd7 30.h5 Kc6 31.hg6 hg6 32.Kf2 Kb6 33.Ke2 Ka5 34.Kd2 Ka4 35.Kc2 Bh4 36.Nd2 Bf2 37.Nf1 Be1 38.g5 Bf2 39.Bc1 Nd6 40.Nh2 Nf5 41.Ng4 Bg1 42.Bd2 Ka3 43.Bc1 Ka2 44.Bd2 Ka3 45.Bc1 ½–½. Sundin,Thommy (1890) – Nygren,Per Arne (1925), Soederhamn S, 1988.

6.c4 ab5

7.ab5 Ra1

8.Ba1 Be7 9.Nf3 0–0 10.Nc3 (10.Qc2 c6 (10...dc4 11.Bc4 c6 12.Bf6 Bf6 13.d4 cb5 14.Bd3 Qa5 15.Nbd2 Qa1=; 10...Re8 11.c5 c6 12.b6 Ne4 13.d4 Na6 14.Ba6 ba6 15.0–0 Qb8+/–) 11.Ng5 g6 12.Qb2 h6 13.Nf3 dc4 14.Bc4 cb5 15.Bb5 Bb5=; 10.Bf6 Bf6 11.d4 c6 12.cd5 cd5 13.Qd2 Qe8 14.Nc3 Bd8 15.Qa2 Qe7=; 10.Qb3 c6 (10...dc4 11.Bc4 c6 12.Bd4 cb5 13.Bb5 Bc6 14.Bc6 bc6 15.d3 c5=; 10...Bc8 11.Bf6 Bf6 12.d4 dc4 13.Bc4 Nd7 14.0–0 e5 15.Rd1 ed4=; 10...Bd6 11.Bf6 Qf6 12.cd5 ed5 13.Qd5 Qb2 14.Nc3 Bc8 15.Bd3 Nd7+=; 10...Be8 11.Bf6 Bf6 12.d4 c5 13.cd5 cd4 14.ed4 Qa5 15.Nbd2 ed5+=) 11.Be5 cb5 12.cd5 Nd5 13.Bb5 Nc6 14.Nc3 Ne5 15.Ne5 Bb5+=; 10.Be5 c6 (10...dc4 11.Bc4 c6 12.Nc3 cb5 13.Nb5 Nc6 14.Bg3 Qb6 15.Qe2 Rc8=; 10...Ng4 11.Bg3 c6 12.bc6 Bc6 13.cd5 Qd5 14.Nc3 Qd7 15.h3 Nf6=; 10...Ne4 11.Qc2 c6 12.Bd3 f5 13.cd5 ed5 14.0–0 cb5 15.Nc3 Bc6+=; 10...Be8 11.d4 Nbd7 12.Bg3 Bb4 13.Nbd2 Ne4 14.Qb3 Bd2 15.Nd2 Nd2=) 11.Nc3 Ne4 12.bc6 Bc6 13.Qc2 Nc3 14.Qc3 Qb6 15.Bg7 Qb1=) 10...c6 11.Be2 (11.Ne5 cb5 12.cd5 Nd5 13.Nd5 ed5 14.Bd3 b4 15.Qh5 f5=) 11...dc4 12.Bc4 cb5 (12...Qa5 13.Qb1= Rc8 14.0–0 cb5 15.Bb5 Bb5=) 13.Nb5 Bc6 (13...Qa5 14.Qb1= Rc8 15.Bc3 Qa4=; 13...Ne4 14.0–0 Bc6 15.Qc2 Nd6=) 14.0–0 Bf3 (14...Nbd7 15.Nbd4= Bd5=; 14...Bd5 15.d3 Nc6=) 15.Qf3+= Nc6 (15...Qd2+=) 16.d4 Na5 17.Bd3 Nc6 18.Rc1 1–0. Piriyev,Maksat – Olmezoglu,Sahin, chessmoon.com, 2011.

8.Ba1 c6

9.Qb3 dc4 10.Bc4 cb5 11.Bb5 Qc7 12.Nc3 Bb5 13.Qb5 Qc6 14.Nf3 Bd6 15.0–0 0–0 16.e4 Qc7? (Better is 16...Nfd7+=) 17.e5+– (17...Be5 18.Ne5+–) 1–0. orane (2175) – dahmer (1615), Live Game Caissa's Web, 2004.

9.Nc3 Qa5 10.bc6 Nc6 11.Nf3 e5 =.

9.Nc3 Qa5 10.Nf3 dc4 11.bc6 Bc6 12.Bc4 =+.

9.Nc3 Qa5 10.Nf3 Bd6 11.Be2 (11.bc6 bc6 12.Be2 e5=) 11...0–0 (11...dc4 12.e4 Bc5 13.Bc4 cb5 14.Bb3=+) 12.0–0 (12.bc6 Bc6 13.Nb5 Be7=) 12...Rc8 (12...dc4 13.bc6 Bc6 14.Bc4–/+) 13.Qb3= Be8 14.Bb2 Nbd7 15.d4 dc4= 16.Bc4 Nd5 17.Ra1 Qb4+= 18.Ne4 Qb3= 19.Bb3 Be7 20.Ra7 Rb8 21.Bd5 cd5 22.Nc3 Nb6 23.Nd2 Bb4 24.Ndb1 Nc4 25.Ba1 Bd6 26.Ra4 f5 27.h3 g5 28.Kf1 Kf7 29.Ke2 h5 30.Nd2 Nb6 31.Ra7=+ Bb4 32.Ndb1 Ke7 33.Kd3 Kd7 34.Ra2 Kc7 35.f3 Rc8 36.Rb2 Ba5 37.g3 Nc4–/+ 38.Re2 Kd6 39.h4 gh4 40.gh4 ½–½. Berlacki,Piotr – Laux,Bernhard, Wch Seniors Bad Liebenzell, 1996.

9.Nc3 Bc5 =.

9.Nc3 Be7 10.Nf3 =.

9.Nf3 dc4 10.bc6 Bc6 11.Bc4 =.

9.Nf3 Bd6 10.bc6 Bc6 11.cd5 Bd5 12.Bb5 Bc6 13.Bc6 Nc6 =.

9.Nf3 Bd6 10.Be2 0–0 11.0–0 dc4 12.Bc4 cb5–/+ 13.Be2 b4 14.Qb3 Bc6 15.Be5? Bf3–+ 16.Bf6 Qf6 17.Bf3–/+ Qe5 18.g3=+ Nc6 19.d4 Qa5 20.Rc1 Qa6 21.Qc4 Qc4=+ 22.Rc4 Na5 23.Rc1 Rb8 24.Nd2 b5 25.Be2 Bf8 26.Ra1 Nc4=+ 27.Nc4 bc4 28.Bc4 b3 29.Rb1 b2 30.Kf1 Rc8 31.Bd3 Rc1 32.Ke2 Ba3 33.h4 h6 34.e4 Kf8 35.d5 Ke7 36.de6 Ke6 37.f4 f6 38.g4 g5–+ 39.hg5 hg5 40.fg5 fg5 41.e5 Ke5 42.Bf5 Kd4 43.Kd2 Bb4 44.Ke2 Kc3 45.Kf3 Bd6 46.Ke2 Bf4 47.Kf3 Kb3 48.Be6 Ka3 49.Bf5 Ka2 50.Rb2 Kb2 (51.Ke4 Kc3–+) 0–1. Koerner – Hofelichtt, 1974.

9.Nf3 Bd6 10.Be2 dc4 11.bc6 Bc6 12.Bc4 =+.

6.c4 dc4

7.Nc3 Nd5 8.Bc4= Nc3 9.Bc3 ab5 (9...Qg5 10.Qf3 c6 11.ba6 Na6 12.Nh3=) 10.ab5+= Ra1 11.Qa1 f6 12.Nf3 Be7 (12...Bd6 13.Qa8 Qc8 14.e4+=) 13.Nd4 (13.Qa2 Qc8+/–) 13...Qc8 (13...e5 14.Ne6 Be6 15.Be6+=) 14.Qa2 e5 (14...Kf7 15.0–0+/–) 15.Ne6 Be6 16.Be6 Qd8 17.0–0 Rf8 (17...Bd6 18.Qa8+/–) 18.Qa8+– b6 19.Ra1 Bd6 20.Qd5 Ke7 21.Bf5 Ke8? (better is 21...Re8+–) 22.Ra8 (22.Bh7?! Qd7+–) 22...Rf7 23.Bh7 (better is 23.Be6 Re7 24.Bc8 Qc8 25.Rb8 Qb8 26.Qg8 Kd7 27.Qb8+–) 23...e4 (23...Ke7+–) 24.Qe6 Kf8 25.Bg6 Re7 26.Qh3 Re5 27.Qh8 Ke7 28.Qg7 1–0. Rios Garcia,Gabino (1720) – Sanchis,Fernand, 2nd IRT SUB–2200 BURJASSOT, 2014.

7.Nc3 Bd6 8.Bc4 c6 9.Nf3 =.

7.Bc4 Bb4 8.Nf3 =.

7.Bc4 c6 8.Nc3 Bb4 9.Qb3 (9.bc6 Bc6 10.Nf3 Nbd7=) 9...c5 10.Nf3 ab5 11.ab5 Ra1 12.Ba1 0–0 13.0–0 Qe7 14.Na2 Ba5 15.d4 Rc8 16.dc5 Qc5 17.Rc1 Qe7 18.Bb2 (18.Be5 Ng4+=) 18...Ne4 (18...Bc7 19.Be5+=) 19.Bf1 (19.Qd3 Nd6+=) 19...b6 (19...Rc1 20.Nc1 Nc5 21.Qc2+=) 20.Rc8 Bc8 21.Nc3 (21.Qc2 Nc5=) 21...Nc5 (21...Bb7 22.Ne4 Be4 23.Qc4 Bf3 24.Qc8 Qf8 25.Qf8 Kf8 26.gf3=) 22.Qc4 Bb7 23.Na4 Nbd7 24.Nc5 Nc5 25.Qd4 f6 26.Bc4 Kf7 27.Nd2 Qc7 28.Nf3 Ne4 29.h4 h6 30.Bd3 Bc3 31.Bc3+= Nc3 32.Nd2 Bd5= 33.e4 e5+= 34.Qb4 Be6? 35.Bc4+– Bc4 36.Qc3 Qd6 37.Nc4 Qc5 38.Qb3 Ke7 39.Ne3 Qd4 40.Qc4 Qd7 41.Nf5 Kf8 42.Qd5 Qa7 43.h5 Qa1 44.Kh2 Qd1 45.Qd1 (45...g6 46.Qd8 Kf7 47.Qe7 Kg8 48.Qg7#) 1–0. Burda,Roman (2135) – Melich,Jindrich (2150), CZE–chT2b, 2001.

7.Bc4 c6 8.Nc3 Bd6 9.d3 =+.

7.Bc4 c6 8.bc6 Bc6 9.Nf3 Nbd7 =.

7.Bc4 Bd6 8.f4 =+.

7.Bc4 ab5

8.ab5 Ra1

9.Ba1 Bd6 10.Nf3 0–0 11.0–0 c6 12.Nc3 cb5 (12...Qe7 13.Qc2=) 13.Nb5 Be7 14.d3 Qb6 (14...Nc6 15.Qe2+=) 15.Qb1 (15.Bd4 Qd8+=) 15...Nc6 16.Ne5 (16.Bf6 Bf6 17.d4 Be7+=) 16...Ne5= 17.Be5 Bb5 18.Qb5 Qb5 19.Bb5 Rc8 (19...Ra8 20.Rb1+=) 20.Rb1+= h6 (20...Ng4 21.Bg3 h5 22.h4+=) 21.h3 Rc5 (21...Ra8!?+=) 22.d4+/– Rc2 (22...Rc3 23.Bf1+/–) 23.Bd3 Rd2 24.Rb7 Rd3 25.Re7 Ne4 26.f3 Nc3 27.Re8 Kh7 28.e4 f6 29.Bd6 Rd4 30.Re6 Rd1 31.Kh2 Ne2 32.Bf8 Rd7 33.Rd6 Rf7 34.Rd8 Nf4 35.Bd6 Ne6 36.Re8 Nd4 37.Be7 Nc6 38.Bc5 Ne5 39.Bd4 Nd7 40.Kg3+– Kg6 41.f4 Rf8 42.Re7 Rf7?? 43.f5 (43...Kh7 44.Rf7+–) 1–0. orane – barnacle10, Caissa.com, 2006.

9.Ba1 Bd6 10.Nf3 c6 11.Nc3 =.

9.Ba1 c6

10.Qa4 Bc5 11.Nf3 0–0 12.0–0 Nd5 (12...Be7 13.Bf6 gf6 14.Nc3+=) 13.Qb3 b6 (13...Bd6 14.Nc3+=) 14.Be5+/– cb5 (14...Be8 15.e4 cb5 16.Bb5 Bb5 17.Qb5+/–) 15.Bd5 ed5 16.d4 Be7 17.Nc3 (< 17.Qd5 Bc6 18.Qb3 b4=). pereira – mardal, internet, 2006.

10.Qa4 Bc5 11.Nf3 cb5 12.Bb5 Qb6 13.Nc3 +=.

10.Qa4 Nd5 11.Qb3 cb5 12.Bd5 ed5 13.Qd5 Nc6 +=.

10.Qa4 Nd5 11.bc6 Bc6 12.Bb5 Nb4 13.Bc6 (13.Nf3 Qd3 14.Nc3 Nc2 15.Kd1 Bb5 16.Qc2 Ba6=) 13...N8c6 (< 13...N4c6 14.Nf3=) 14.Nf3 Nd3 (14...Qd3 15.Nc3=+) 15.Ke2 Nc5 (15...Ndb4 16.Rc1=) 16.Qb5= Qa5 (16...Qd5 17.Nc3 Qd7 18.d4+=) 17.Nc3 (17.Qa5 Na5 18.Nc3 Kd7+=) 17...f6 (17...Qb5 18.Nb5 Kd7 19.Rb1+=) 18.Bb2 (18.Rb1!?+=) 18...Qb5= 19.Nb5 Nb3 20.Nfd4 Nbd4= 21.Bd4 Kd7 22.Rb1 Be7 23.Bb6 Ra8 24.Nc3 Ra6 25.Ne4 ½–½. Krueger,Bernhard – Wuttke,Bodo (1770), Baunatal op 5th, 1999.

10.Qa4 Nd5 11.bc6 Bc6 12.Bb5 Nb6 13.Bc6 Nc6 14.Qb5 =.

10.Qa4 Nd5 11.Bd5 ed5 12.Nf3 f6 =.

10.Qa4 Be7 11.Nf3 0–0 12.Bf6 (12.0–0 cb5 13.Bb5 Bb5 14.Qb5 Qd7=) 12...Bf6 13.d4 cb5 (13...Qb6 14.Nc3=) 14.Bb5 Bb5 (14...Qb6 15.Nc3=) 15.Qb5 Qd7 (15...Qc7 16.0–0=) 16.Qd7 Nd7 17.Ke2 Rc8 (17...b5 18.Rc1 Rb8 19.Kd3=) 18.Kd3 (18.Nbd2 b5+=) 18...e5 (18...b5!?=) 19.Nc3+= ed4 20.ed4 Rd8 21.Nd5 Ne5? (better is 21...b5 22.Rc1 Kf8+/–) 22.de5+– (22.Ne5?! Be5 23.f4 Bb8+=) 22...Rd5 (22...Be5 23.Ne5 Rd5 24.Ke4+–) 23.Ke4 (23...Rb5 24.ef6 gf6 25.Nd4+–) 1–0. b4_player – opponent, gamecolony.com, 2008.

10.Qb3 cb5 11.Bb5 Bb5 12.Qb5 Qd7 13.Nc3 Be7 14.Nf3 Nc6 15.0–0 0–0 16.Rb1 Ra8 17.h3 h6 18.Ne2 Ra5 19.Qb3 Ra3 20.Qb5 Ra5 21.Qc4 Rc5 22.Qb3 Na5 23.Qd1 Qd3 24.Ne1 Qd7 25.Bd4 Rb5 26.Bc3 Nc4 Attacks the backward pawn on d2 27.d3 Nb6 28.Ra1 Nfd5 29.Ba5 Bf6 30.d4 Nc4 31.Bc3 Qc6 32.Qc2 g6 33.Rc1 Na5 34.Qa4 Qb6 35.Ba5 Qa5 (35...Ra5 36.Qe8 Kh7 37.Qf7 Bg7 38.Rc8+–) 36.Qc4 Rb4 (36...Rb6 37.Qc8 Kg7 38.Nf3=) 37.Qc2 (37.Qc8 Kg7=) 37...b5= 38.Qc8 Kg7 39.Nd3 Rb3 40.Nc5 Rb2 41.Qd7 Be7 (41...Re2 42.Ne6 Kh8 43.Rc8 Qd8 44.Rd8 Bd8 45.Qe8 Kh7 46.Qf7 Kh8 47.Qg7) 42.Nf4 Nf4 43.ef4?? (43.Qe7 Qd2 44.Rf1 Ne2 45.Kh2 Nd4 46.Nd7+–) 43...Qd2–+ 44.Ne6 Kf6 45.Rf1 fe6 46.Qe8 Qf4 47.Qh8 Kf5 (better is 47...Kg5 48.g3 Qf6–+) 48.g3 Qg5?? (better is 48...Bf6 49.Qf6 Kf6 50.gf4 b4–+) 49.Qe5 1–0. Mallmann,Bernd (1970) – Engels,Gerd (1990), SVR–ch MAT–II, 2007.

10.Nc3 Qa5 11.Qb1 Bb4 12.Nf3 cb5 13.Bd3 Bc6 14.Ng5 (14.Na2 Bd6+=) 14...Nbd7 (14...Bg2!? 15.Bb5 Bc6 16.Bc6 Nc6–/+) 15.0–0+= Bc3 16.dc3 b4 17.Ne4 b3 18.Nf6 Nf6 19.Qb3 Qg5 20.e4 (20.g3!?+=) 20...Ne4–/+ 21.Be4 Be4 22.f3 Qc5 23.Rf2 Bd5 24.Qa4 Ke7 25.Bb2 b5 26.Qh4 f6 27.Qg3 (27.Qh5!?–/+) 27…g6 0–1. Dudkin,Maxim – Galynin,Dmitri (2075), Moscow op–B, 2008.

10.Nc3 cb5 11.Nb5= Nc6 12.Nf3 Nb4 (12...Bc5 13.0–0=) 13.0–0 Qb6 (13...Be7 14.Bf6 Bf6 15.Nd6 Ke7 16.Ne4+/– (16.Nb7 Qc7–/+)) 14.Qe2 (14.Bd4 Qd8+/–) 14...Nc2 (14...Be7 15.Bd4 Qd8 16.Rb1+/–) 15.Be5 Be7 (15...Na3!? 16.Na3 Ba3+/–) 16.d4+– Nb4 17.Bc7 Qc6 18.Ne5 Qe4 19.Bd6 Nbd5? (19...Nc6+–) 20.g3 (better is 20.Be7!? Bb5 21.Bb5 Ke7+–) 20...Bb5? (better is 20...Bc6 21.Ra1 0–0 22.Nc6 bc6+/–) 21.Bb5+– Kd8 (21...Kf8 22.Bd3 Bd6 23.Be4 Ne4+–) 22.Nf7 (22...Kc8 23.Qc4 Nc7 24.Qc7#) 1–0. De Visser,Arno – van Lier, 1986.

10.Nc3 cb5 11.Nb5= Be7 12.Nf3 =.

6.c4 c6

7.ba6 Na6 8.Qb3 Nc5 =+.

7.Qb3 ab5 8.ab5 Ra1 9.Ba1 dc4 10.Bc4= cb5 11.Bb5 Nc6 12.Nf3= Bd6 13.0–0 0–0 14.d4 Na7 15.Bd3 Bc6 16.Nbd2 h6 17.e4 Bc7 18.Rb1 Qe7? 19.d5!+– Nd5 20.ed5 Bd5 21.Bc4 Bc6 22.Qc3 e5 23.Ne5 Be5 24.Qe5 Qe5 25.Be5 b5 26.Bf1 Rd8 27.Nf3 (27...Be4 28.Rb4+–; 27.Bf4 Rd5+–) 1–0. De Visser,Arno – Vlaming, 1983.

7.Qb3 ab5 8.ab5 Ra1 9.Ba1 dc4 10.Bc4 Be7 11.Nf3 0–0 12.Nc3 Qa5 13.0–0 Qb4 14.Rb1 Qb3 15.Rb3 Rc8 16.Ne5 cb5 17.Nd7 bc4 18.Nf6 Bf6 19.Rb7 Na6 20.Kf1 Nc5 21.Ra7 h6 22.Ke2 Nb3 23.Bb2 Rd8 24.d4 cd3 25.Kd1 Rc8 26.Rb7 Nc5 27.Rb5 Bc3 28.Bc3 Ne4 29.Be1 Ra8 30.Rb1 Ra2 31.f3 d2 32.fe4 de1Q 33.Ke1 Rg2 34.Rb8 Kh7 35.Rb7 Kg6 36.h4 Rh2 37.h5 Rh5 38.Kf2 Rg5 39.Kf3 h5 40.Rb2 h4 41.Rh2 Kh5 42.Rh1 Rb5 43.Rc1 g5 44.Rc8 Rb1 45.e5 g4 46.Kf4 Rf1 47.Ke4 g3 48.Rg8 Rf2 49.Kd3 g2 50.e4 h3 51.Ke3 Rf1 52.Rh8 Kg4 53.Rg8 Kh4 54.Rh8 Kg3 55.Rg8 Kh2 56.Ke2 0–1. Kukel,Imre (2010) – Horvath,Adam (2435), SVK–chT3B, 2000.

7.Qb3 ab5 8.ab5 Ra1 9.Ba1 Bd6 10.Nf3 =+.

7.Qb3 Bd6 8.cd5 cd5 9.Nf3 =+.

7.Nc3 Bb4 8.Qb3 a5 9.Nf3 Qc7 (9...0–0 10.bc6 Bc6 11.Rb1=) 10.Bd3 e5 (Better is 10...dc4!? 11.Bc4 0–0=) 11.cd5+/– Bc3 (11...cd5 12.Nd5 Nd5 13.Qd5 f6+–) 12.Bc3 cd5 (12...cb5 13.Bb5 e4 14.Bf6 ef3 15.Bg7 Rg8=) 13.Be5+– Qd8 14.0–0 Be6 15.Ng5 Nbd7 16.Bd4 h6 17.Ne6 fe6 18.Bg6 Kf8 19.Rac1 Rc8 20.Qa3 Kg8 21.Qd6 Nf8 22.Qg3 N8d7 23.Rc8 Qc8 24.Bb2 Qc4?? 25.Bf6 Nf6 26.Qb8 (26…Qc8 27.Qc8 Ne8 28.Qe8#) 1–0. Richter,Rainer (2220) – Valenta,Vit, Timisoara op, 1995.

7.Nc3 ab5 8.ab5 Ra1 9.Ba1 =.

7.Nc3 Be7 8.Nf3 0–0 9.Be2 dc4 10.Bc4 Qc7 11.Be2 Nd5 (11...e5 12.Qb1=) 12.Rc1 ab5 13.ab5 Qd8 14.Nd5 ed5 15.Qb3 Qb6 16.0–0 Be6 17.Nd4 c5 18.Ne6 fe6 19.Qc3 Bf6 20.Qc2 (20.d4 Nd7+=) 20...Nd7 (20...Ra2 21.d4 cd4 22.ed4 Bd4 23.Bd4 Rc2 24.Bb6 Re2 25.Rc7=) 21.Bg4 Ra2 22.Rb1 (22.d4!?+=) 22...Ne5 Black intends c4 (22...c4 23.Rfd1–/+) 23.Be2 c4 24.Qc1 Nd7 25.d3? (better is 25.Bf6 Nf6 26.Rb2–/+) 25...c3–+ 26.d4 cb2 27.Rb2 Rb2 (27...Rb2 28.Qb2 Qd6–+) 0–1. Dziedzic,Ferdynand – Krawcewicz,Lucyna (1960), Ogolnopolski Integracyjny Turniej Szachowy Poland, 2008.

6.Nf3 ab5

7.ab5 Ra1 8.Ba1 c6 9.c4 Be7 10.Be2 0–0 11.0–0 dc4 12.bc6 Bc6 13.Bc4 b5 14.Be2 b4 15.d4 (15.d3 Nbd7=) 15...Qa5 16.Nbd2 Ba4 17.Qb1 Nbd7 18.e4 Rb8 19.Rc1 Qa8 20.Bd3 h6 21.Nc4 Bc6 22.Re1 Bf8 23.Nce5 Ne5 24.Ne5 Ba4 25.Bb2 Qa5 26.Bc4 Nd7 27.d5 ed5 (27...Qc7 28.Nd7 Bd7 29.Qa2 ed5 30.Bd5=) 28.Bd5+= Ne5 29.Be5 Re8 30.Qb2 Bd7 31.h3 Qb5 32.Re3 Be6 33.Rg3?? g6 34.Be6 Re6 35.f4 Kh7 36.Qb1 Qc5 37.Kh1 Re5 38.fe5= Qe5 39.Rf3 Qe6 40.Qf1 Kg8 41.Qd3 Be7 42.Qb3 Qb3= 43.Rb3 Kg7 44.Kg1 Kf6 45.Kf2 Ke5 46.Ke3 h5 47.Rd3 Bc5= 48.Kf3 Bd4 49.g3 f6 50.g4 h4 51.Rb3 Bc3 52.Rb1 Kd4 53.Rd1 Kc4 54.Ke3 b3–/+ 55.Rb1 b2 56.Rd1 g5 57.Ke2? Be5?? 58.Kd2 Bf4?? 59.Kc2= Bc1 60.Rd6 Kc5+= 61.Rf6 Kd4 62.Re6 Bf4 63.Kb2 Be5 64.Kc2 Ke4 65.Kd2 Kd5 66.Rg6 Ke4 67.Ke2 Kf4 68.Kf2 Bd4 69.Kg2 Be3 70.Rf6 Ke4 71.Rf5 Bf4 72.Kf2 Be3 73.Ke2 Bf4 74.Ra5 Be5 75.Ra4 Bd4 76.Rb4 Ke5 77.Kf3 Bc3 78.Rb5 Kf6 79.Ke4 Bd2 80.Rb6 Kg7 81.Kf5 Bb4 82.Rb4 (82.Rb4 Kf7 83.Rd4 Ke7 84.Rd5 Kf8 85.Kf6 Kg8 86.Rd7 Kh8 87.Kg6 Kg8 88.Rd8) 1–0. Morriss,P (2005) – Puroila,S (1885), Dublin IRL, Easter Masters, 2012.

7.ab5 Ra1 8.Ba1 Be7 9.Be2 0–0 10.0–0 c6 11.bc6 bc6 12.d4 c5 13.c4 cd4 14.Bd4 Bc6 15.Nbd2 Nbd7 ½–½. Rosner,Dirk – Ribitzki, corr, 1989.

6.Nf3 c6

7.ba6 Na6 8.Be2 Be7 9.0–0 0–0 10.d4 b6 11.Nbd2 c5 12.c4 Nb4 Attacks the isolani on a4 13.dc5 bc5 14.Ne5 Qa5 15.Nd7 Nd7 16.cd5 ed5 17.Bb5 Nb6 (better is 17...Bf6!? 18.Rb1 Bb2 19.Rb2 Ne5=) 18.Bc3 Rfd8 19.Nb3 Qa7 20.Qg4 g6 21.Nc5 Nc2 22.Ra2 Ne3?? (better is 22...f5 23.Qf4 Bd6+–) 23.Qd4 (23.fe3?! Bc5 24.Qf3 f5+=) 23...f6 24.Qe3 Nc4 (24...Bc5 25.Qc5 Nc8 26.Qb4+–) 25.Qe6 (25.Qe6 Kf8 26.Nd7 Rd7 27.Bd7+–) 1–0. CountFromHolland – DinoMerlin, playchess.de, 2004.

7.c4 dc4 8.bc6 Nc6 9.Bc4 Qb6 10.Qc1 Na5 11.Bf6 gf6 12.Ba2 Rc8 13.Nc3 Nc4 14.Rb1 Qc7 15.Rb3 Na5 16.Rb1 Ba4 17.0–0 (17.Na4 Qc1) 17...Bc6 18.Qd1 Bd6 19.e4 b5 20.d4 Bb7 21.d5 Qc3 22.de6 Ke7 23.ef7 Qc2 24.Bd5 (24.Nd4 Qd1 25.Rfd1–+) 24...Qd1 25.Rbd1 Bd5 26.Rd5 Nc4 27.Nd4 Kf7 28.Nf5 Rhd8 29.Rfd1 Ke6 30.Nd4 Kd7 31.Nf5 Kc7 32.Nd4 Re8 33.f3 Ne3 (33...Be5 34.Kf2–+) 34.Rc1 (34.Rd6 Nd1 35.Ra6 Nc3 36.Rf6 Re7–+) 34...Kd7 35.Rc8 Rc8 (35...Kc8?! 36.Rd6 Rd8 37.Rd8 Kd8 38.Kf2=+) 36.Rh5 Bc5 37.Rh7 Kd6 38.Nb3 Bb6 39.g3 (39.Rf7 Ke6 40.Rb7 Nc4 41.Kf1–+) 39...Rc3 40.Nd2 (40.Rb7 Nc4 41.Rb6 Nb6–+) 40...Nc4 41.Kg2 Nd2 42.Rh6 (42.Rb7 Bd4 43.Rb8 Rf3–+) 42...Rf3 43.Rh5 (43.h4 Rf2 44.Kh3 Ne4–+) 43...Rf2 44.Kh3 Ne4 45.Rh8 b4 46.Rb8 Kc6 47.Re8 f5 48.Re7 Kd6 (48...b3 49.Re6 Kc5 50.Re5 Kd6 51.Re4 fe4 52.Kg4 Rh2 53.Kf4–+) 49.Rb7 Be3 50.g4 Ng5 51.Kg3 f4 52.Kh4 f3 53.Rb4 Rh2 54.Kg3 Rh3# 0–1. Mauron,Regis – Veron,Cyprien (2160), Montigny op, 1999.

7.Ne5 ab5 8.ab5 Ra1 9.Ba1 cb5 10.Nd7 Qd7 11.Be5 Bd6 12.Bb5 Nc6 (12...Qb5 13.Bd6 Nbd7 14.d3=) 13.Bf6+= gf6 14.0–0 h5 15.c4 dc4 16.Qa4 Ke7 17.Qc4 Qc7 18.Qh4 Ne5 19.Nc3 Ng6 20.Qh3 Qc5 21.Rc1 Ne5 22.Qh4 Ng4 23.h3 Nh2? (better is 23...Nh6+/–) 24.f4 Qa3 (24...Ng4 25.hg4 Bf4 26.Qf6 Kf6 27.Ne4 Ke7 28.Rc5+– (28.Nc5?! Bg3+–)) 25.Rb1 Nf3 26.gf3 Bb4 27.Ne4 Rg8 (27...Rh6 28.f5! Bd2 29.Nd2 Qe3 30.Qf2 Qg5 31.Kh1 Qf5 32.Bf1+–) 28.Kh1 Rg6 29.Qh5 Qa5 30.Rc1 Rg8 31.Nf6! Rg6 (31...Kf6 32.Qh4 Decoy) 32.Ne4 1–0. pastorted (2715) – iozeph (2675), net–chess.com, 2016.

6.Nf3 Bd6

7.Be2 0–0 8.0–0 ab5 9.ab5 Ra1 10.Ba1 c6 11.bc6 bc6 12.Be5 Be5 13.Ne5 c5 14.Nd7 Nbd7 15.c4 d4 16.ed4 cd4 17.d3 Nc5 18.Nd2 Re8 19.Nf3 Nfd7 (better is 19...Qd6!?+=) 20.Nd4= Qf6 (20...Ne5 21.Nb5 Ned3 22.Bd3 Nd3 23.Qf3=) 21.Nb5+/– e5 22.Nc7 Rb8 23.Nd5 Qd6 24.Qc2 (24.d4 ed4 25.Qd4 Re8+/–) 24...Nb3 25.Bg4 Nd4 26.Qa2 Nc5 27.Rd1 f5 28.Be2 h6 29.Kf1 Kh7 30.Nc3 Rb3 31.Nb5 Qd7 The backward pawn on d3 becomes a target (31...Nb5!? 32.cb5 Qd4+= (32...Rb5? 33.d4+–)) 32.Nd4+= Qd4 The pressure on the backward pawn d3 grows 33.Qc2 (33.Qa8!?+=) 33...Rb2+= 34.Qc1 f4 35.h3?? (better is 35.Qa1+=) 35…Nb3–+ (35...Nb3 36.Qb2 Qb2–+) 0–1. Hal1958 – Andy1, playchess.de, 2005.

7.g3 0–0 8.Be2 Qe8 9.0–0 ab5 10.ab5 Ra1 11.Ba1 Bb5 12.Nc3 Be2 13.Ne2 Nbd7 14.Bc3 b6 15.d3 Qa8 16.Qa1 Qb7 17.Qb2 Ra8 18.Ra1 Ra1 19.Qa1 c5 20.d4 c4 21.Qb1 Qa6 22.Kg2 Ne8 23.Kg1 b5 24.Kg2 Nc7 25.Bb4 f6 26.Nc3 Bb4 27.Qb4 Kf7 28.Nd2 Qc6 29.Kg1 Nb8 30.Kg2 Nba6 31.Qb1 b4 32.Nd1 Nb5 33.Kg1 g6 34.Kg2 Qb6 35.Kg1 Qa5 36.Qc1 Qa3 37.Qb1 Nac7 38.Qb2?? Qb2 39.Nb2 c3 40.Kg2 cb2 41.Nb1 Na3 0–1. valpa – garethh, HCL–B2294 playchess.de, 2003.

5.a4 Nbd7

6.c4 b6 7.Nf3 Bb7 8.cd5 ed5 9.ba6 Ba6 10.Ba6 Ra6 11.Qe2 Qa8 12.Nc3 Ra5 13.0–0 Be7 14.Nb5+= Qb7 15.Rfc1 c5 16.Bc3 Ra8 17.d3 0–0 18.h3 Ra6 19.Ra2 Rfa8 20.Rca1 Ne8 21.Qb2 Bf6 22.Bf6 Ndf6 23.Qe5 Qc6 24.Nh4 Qe6 25.Nf3 Qe5 26.Ne5 Kf8 27.Kf1 Ke7 28.Ke2 Nd7 29.Nf3 Nb8 30.Kd2 Nc6 31.Kc3 f6 32.d4 Kd7 33.dc5 bc5 34.Nd2 Nb4 35.Ra3 Nd6 36.Nd6 Kd6 37.Nb3 Nc6 38.g4 Ne5 39.Nd2 Nd7 40.a5 Ne5 41.e4 d4 42.Kc2 g5 43.Ra4 Kc6 44.Nb3 Rd8 45.Nd2 Rb8 46.R4a3 c4 47.h4 h6 48.hg5 hg5 49.Rh1 Kc5 50.Rh7 c3 51.Rb3 Rba8 52.Nb1 Ra5 53.Nc3 dc3 54.Rc7 Kd6 55.Rcc3 Ra2 56.Kd1 Ra1 57.Kc2 R8a2 58.Rb2 Rb2 59.Kb2 Rf1 60.Rc2 Rf2! (61.Rf2 Nd3 62.Kc3 Nf2–+) 0–1. Esquivel,Heriberto – De la Vega,Hector, Mar del Plata, 1967.

6.d4 c5 7.Nf3 Ne4 8.c3 c4 9.g3 (better is 9.ba6!? ba6 10.Qc2+=) 9...ab5–/+ 10.ab5 Ra1 11.Ba1 Qa5 12.Bb2 Qb5 13.Qc2 Bd6 14.Bg2 0–0 15.Nfd2 Nd2 16.Nd2 e5 17.0–0 ed4 18.ed4 Re8 19.Rb1 Qc6 20.Nf3 Nf6 21.Bc1 h6 22.h3 Bd7 23.Nh4 Qc8 24.g4 h5 25.f3 hg4 26.Bg5?? (better is 26.fg4 Qc7 27.Nf3–+) 26...Nh7 (better is 26...gh3 27.Bf6 gf6 28.f4 hg2 29.Qg2 Kf8 30.Qd5–+) 27.Nf5 Bf5 (27...Bf5 28.Qd1 Bb1–+; 27...Ng5?! 28.Nd6 Nh3 29.Kh1+=) 0–1. Wadtland,Flemming (1820) – Savio,Niclas, Politiken Cup, Copenhagen DEN, 2010.

6.Nf3 Bb4 7.c4 ab5 8.ab5 Ra1 9.Ba1 0–0 10.Be2 dc4 11.Bc4 Nb6 12.Qb3 Bd6 13.0–0 Nc4 14.Qc4 Bd7 15.Be5 Qe7 16.Nc3 Ra8 17.d4 Ng4 18.Bd6 cd6 19.Qb4 Nf6 20.Ne5 Rc8 21.Ra1 (withdraw, 1–0). Luzuriaga,Norberto Horacio – Troester,Holger, E2000/4, 2000.

6.Nf3 Nb6 7.ba6 Bd7 8.ab7 Ra7? 9.a5+– Na4 10.Bf6 Qf6 11.b8Q (11...Qd8 12.Qa7+–) 1–0. Kleinke,Uwe – Baer,H, corr DDR ch I730, 1979.

6.Nf3 c6 7.c4 Bd6 8.Be2 0–0 9.0–0 h6 (9...ab5 10.ab5 Ra1 11.Ba1 cb5 12.cb5=) 10.d4= Re8 (10...ab5!? 11.c5 Be7 12.ab5 Ra1 13.Ba1 e5+=) 11.c5+= Bc7 12.b6 Bb8 13.Nc3 e5 14.a5 e4 15.Ne1 Nf8 16.f3 (16.Nc2 Bf5=) 16...Bf5 (16...ef3!? 17.Nf3 Ng4+=) 17.fe4 Be4 18.Bd3 (18.Ne4 Ne4 19.Bd3 Qe7=) 18...Qe7 19.Be4 Ne4 20.Qf3?? (better is 20.Ne4 Qe4 21.Ra3=) 20...Nd2–+ 21.Qf2 Nf1 22.Kf1 Qe3 23.Qe3 Re3 24.Kf2 Re6 25.g3 g5 26.Ng2 f5 27.Bc1 Ng6 28.Kf3 h5?? (better is 28...Kg7–+) 29.Bg5+= h4 (29...Kf7 30.Rf1+=) 30.Ne2 hg3 31.hg3 Re2 32.Ke2 Bg3 33.Kf3 f4 34.Bf4?? (better is 34.Ne3 Rf8 35.Kg4 fe3 36.Kg3+=) 34...Bf4–+ 35.Nf4 Rf8 0–1. Hal1958 – The_Simple, playchess.de, 2004.

6.Nf3 Be7 7.c4 0–0 8.Nc3 Nb6 9.Qb3 dc4 10.Bc4 c6 11.bc6= bc6 12.0–0 Bb7 13.d4 Nc4= 14.Qc4 c5 15.dc5 Qc7 16.Rac1 Bd6 17.Qh4 Bc5= 18.Ne2 Qe7 19.Bf6 gf6 20.Nf4 Kh8 21.Nh5+/– Rg8 22.e4 f5?? 23.Nf6?? Rg6?? 24.Qh7# 1–0. Fredek (2090) – Guest433397, Freundschaftspartie, 5m + 0s, 2005.

6.f4 Bd6 7.Nf3 =+.

6.f4 Be7 7.Nf3= 0–0 8.Be2 Ne4 9.0–0 c5 10.c4 ab5 11.ab5 Ra1 12.Ba1 Nd6 13.Na3 Nb6 14.d3 f6 15.Nd2 Nf5 16.Nc2 Qc7 17.Qe1 Bd7 18.e4 Nh6 19.Nb3 d4 20.Bb2 Bd6 21.Bc1 Na4 22.Bh5 Nf7 23.Bd2+= Bc8 24.Qg3 Nc3 25.Ne3 Kh8 26.Qh4 b6 27.Nd1 Na2 28.Nb2 Nc3 29.Bc3 dc3 30.Nd1 g5 31.fg5 Ng5 32.Nc3 ½–½. Woelfelschneider,Peter – Baer,Werner, TT–12 ETC, 2004.

6.ba6 ba6

7.Nc3 e5 =+.

7.c4 Rb8 8.Qc2 =+.

7.c4 dc4 8.Na3 Ba3 9.Ra3 Bb7 +=.

7.c4 dc4 8.Na3 e5 =+.

7.c4 dc4 8.Bc4 Bb7 9.Nf3 Be7 10.0–0 0–0 11.Nd4 Qc8 12.Nc3 Bg2 13.Kg2 Qb7 14.Kg1 Qb2 15.Bb3 c5 16.Ra2 Qa2 17.Ba2 cd4 18.ed4 Bb4 19.Qf3 Rac8 20.Rb1 a5 21.Qd3 Rfd8 22.Bc4 Ne5 23.de5 Rd3 24.Bd3 Nd7 25.f4 g6 26.Ne4 Nb6 27.Bb5 Rc2 28.Rb4 ab4 29.a5 Nd5 30.Nd6 b3 0–1. Pennell,Gary – Wall,Bill, Taylorsville 1975.

7.c4 dc4 8.Bc4 Bb7 9.Nf3 Be7 10.0–0 0–0 11.Nd4 Qc8 12.Nc3 Bg2 13.Kg2 Qb7 14.Kg1 Qb2 15.Bb3 c5 16.Nc6+/– Bd6? (better is 16...c4 17.Ne7 Kh8+/–) 17.Ra2+– (17.Ra2 Qa2 18.Ba2+–) 1–0. Wall,Bill – Pennell,Gary, Taylorsville, NC, 1975.

7.c4 dc4 8.Bc4 Rb8 9.Qc2 =+.

6.c4 ab5

7.ab5 Ra1 8.Ba1 Bc5 9.Nf3 0–0 10.Qc2 c6 11.bc6 bc6 12.Be2 Bd6 13.0–0 Ba6 14.Bf6 Nf6 15.d4= Bb4 16.Ne5 Qc8 17.c5 Be2 18.Qe2 Nd7 19.Qb2 Ba5 ½–½. nogumo – Schili, mySchach.de, 2005.

7.ab5 Ra1 8.Ba1 Bd6 9.d4 =+.

7.cb5 e5 8.d4 Ne4 9.Nf3 Bb4 10.Nbd2 (10.Ke2 Nb6 11.Qb3 Ba5–/+) 10...ed4 11.Bd4 0–0 (11...Ndf6!? 12.Ke2 Bg4–/+) 12.Bd3 Ndc5 13.Bc5 Nc5 14.Be2 (14.Qc2 Nd3 15.Qd3 c5+=) 14...Bg4 (14...Bc3 15.Ra3 Ne4 16.0–0–/+) 15.0–0 Re8 16.Qc2 b6 (16...d4 17.Bc4 de3 18.Bf7 Kf7 19.fe3–/+) 17.h3 Bh5 18.Nd4 (18.Bd3 Nd3 19.Qd3 Bg6+=) 18...Bg6 (18...Be2 19.Ne2 Bd2 20.Qd2–/+) 19.Qd1 (19.Qb2 Bd2 20.Qd2 Ra4 21.Ra4 Na4+=) 19...Bd2 (19...Bc3 20.Nc6 Qh4+=) 20.Qd2+= Ra4 21.Nc6 Qa8 (better is 21...Qd6 22.Ra4 Na4+=) 22.Qd5?? (better is 22.Ra4 Qa4 23.Qd5=) 22...Ra1–+ 23.Ra1 Qa1 24.Bf1 (24.Qd1 Ra8 25.Ne7 Kf8 26.Ng6 hg6 27.Kh2 Qd1 28.Bd1–+) 24...Bd3 25.Ne7 Kf8 0–1. Baer,Cy (1895) – Eschweiler,Martin (1945), RSS7E easy–54, 2007.

7.cd5 Nd5 8.ab5 Ra1 9.Ba1 =+.

6.Nf3 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 Nbd7 8.Nf3).

6.Nf3 Nc5

7.Be2 ab5 8.ab5 Ra1 9.Ba1 Be7 10.0–0 0–0 11.Nc3 Bd6 12.Nb1 =.

7.Be2 ab5 8.ab5 Ra1 9.Ba1 Be7 10.0–0 0–0 11.Nc3 Nfe4 12.Qb1 Bf6+= 13.d4 Nc3 14.Bc3 Ne4 15.Bb4 ½–½. Rashkovsky,Nukhim N (2520) – Tseshkovsky,Vitaly (2520), Alma–Ata, 1989.

7.Be2 ab5 8.ab5 Ra1 9.Ba1 Be7 10.0–0 0–0 11.c4 dc4 12.Bc4 Nce4 13.Qc2 Nd6 14.Bd3 Bd7 15.Bf6 Bf6 16.Bh7 Kh8 17.Bd3 Bb5 18.Bb5 Nb5 19.Qc5 c6 20.d4 (20.Nc3 Nc3 21.dc3 Qe7 22.Qe7 Be7=) 20...Be7 21.Qc1 Qc7 (21...Bb4 22.Qb2 Qe7 23.Nbd2=) 22.Ne5 Bd6 23.f4 Ra8 24.Nd2 Kg8 25.Ndc4 Be5 26.fe5 c5 27.Qb2 Qc6 28.Qf2 (28.dc5 Qc5 29.Rf4 Qc6=) 28...Rf8= 29.Nd2 Nc3 (29...cd4 30.ed4 Qc3 31.Nf3=) 30.Nb1 (30.Nf3 cd4 31.Nd4 Qc5=) 30...Nb1 31.Rb1 c4 32.Qf3 Qf3 33.gf3 Rb8 34.Rb5 Kh7 35.Kf2+= Kg6 36.Ke1 Rh8 37.Rb7 Rh3 38.Rc7 Rf3 39.Ke2 Rh3 40.Rc4 ½–½. marekt – Berta3, ChessWorld.net, 2004.

7.Be2 ab5 8.ab5 Ra1 9.Ba1 Be7 10.0–0 0–0 11.Bd4 Bd6 =.

6.Nf3 Bd6

7.Ba3 Ba3 8.Ra3 e5 =+.

7.Nc3 0–0 8.Be2 c6 9.0–0 e5 10.h3 Bb8 11.d4 Re8 Black intends e4 12.bc6 bc6 13.Rb1 e4 14.Nh2 Qc7 15.g3 a5 16.h4 Qd6 17.Qc1 Qe6 18.Ba3 Bc7 19.Qd2 h5 20.Rb3 Qf5 21.Rfb1 g5 22.hg5 Qg5 23.Kh1 h4 24.g4 Qg7 (24...h3 25.Qe1–/+) 25.Qc1 (25.g5!? h3 26.f4 ef3 27.Bf3=) 25...Nh7 26.Qg1 (26.f4!? ef3 27.Nf3–/+) 26...Ng5–+ 27.R1b2 Kh7 28.Rb1 (28.f4!? ef3 29.Nf3–+) 28...Nf6–+ 29.Rf1 h3 (29...Kg8!? 30.Rfb1–+) 30.f4–/+ ef3 31.Nf3 Nf3 (better is 31...Nge4 32.Ne5 Re5 (32...Be5?! 33.de5 Ng4 34.Ne4 de4 35.Qg3+=) 33.de5 Be5 34.Ne4 Ne4–/+ (worse is 34...de4 35.g5 Nd5 36.Qf2+/–)) 32.Bf3? (better is 32.Rf3 Kg8 33.Rh3 Bg4 34.Bg4 Ng4 35.Nd1–/+) 32...Ng4 33.Bg4 Bg4 34.Rb7 Rg8 35.Qf2 (35.Rc7?? Bf3 36.Kh2 Qf6–+) 35...Bf3! 36.Qf3 Qg2 37.Qg2 hg2 38.Kg1 Bh2 39.Kf2 gf1Q 40.Kf1 Rg7 41.Kf2 Re8 42.Ne2 Re6 43.Bf8 Rf6 44.Nf4 Rg8 45.Be7 Rh6 46.Bc5 Kg7 47.Nd3 Kf6 48.Kf1 Rg1 49.Kf2 Ra1 50.Ke2 Ra4 51.Bf8 Rg6 52.Ne1 Rg1 53.Ra7 Bg3 54.Nf3 Rg2 (54...Rg2 55.Kd3 Ra1–+) 0–1. pvanr (2250) – acalado58 (2120), gameknot.com, 2015.

7.c4 0–0 8.Nc3 ab5 9.ab5 Ra1 10.Ba1 c5 11.d3 Ne5 12.Be2 d4 13.ed4 (13.Ne5 Be5 14.Nb1 Bc7=+) 13...Nf3 14.Bf3 cd4 15.Na2 (15.Ne4 Ne4 16.Be4 Qa5 17.Kf1 e5=+) 15...e5 16.0–0 Qa5 17.Qc2 Qc7 18.h3 (18.Rb1 Bf5=+) 18...Bd7 (18...Bf5 19.Rb1–/+) 19.Rb1=+ Ra8 20.Nc1 h6 (20...Bf5 21.Qe2=+) 21.Qd1 (21.Qe2 Be6=+) 21...Bf5 (21...Be6 22.Qe1=+) 22.Nb3 Bg6 (22...Ra2 23.Nc1 Ra3 24.Bb2=+) 23.Qc2 (23.Bb2 Bb4=) 23...Ra7 24.c5 b6=+ 25.c6 Bf5 26.Bb2 Be6 27.Bc1 Nd5 28.Bd2 Qe7 29.Nc1 Nc7 30.Qd1 Ra3 31.Qe2 Qd8 32.Qd1 Qa8 33.Ne2 Rd3–/+ 34.Be4 Ra3 35.Ng3 Ra2 36.Kh2 Qa4–+ 37.Qc1 Ba3 38.Qe1 Qc4 39.f4 ef4 40.Bf4 Nd5 41.Be5 Nc3–+ 42.c7 Nb1 43.Bb1–/+ Rb2 44.Nf5 Rb1–+ 45.Nh6 Kf8 46.Qe4 Bd7 47.Qa8 Ke7 48.Ng8 Ke6 49.Bg3 d3 50.Qa3 Rb4 51.Qa7 Rb5 52.c8Q? Qc8 53.Qa2 Rd5 54.Ne7 Qc5 55.Nd5 Qd5 56.Qd2 Bc6 57.Be1 b5 58.Qf2 Qe4 59.Qa2 Bd5 (60.Qf2 b4–+) 0–1. Kann,Cedric (1850) – Lindsalu,Indrek (2055), Telechess CBM, 2003.

7.c4 ab5 8.cd5 ed5 9.Bb5 =+.

7.c4 dc4 8.Bc4 Qe7 9.0–0 0–0 10.Nc3 c6 11.d4 Nb6 12.Bd3 cb5 13.ab5 ab5 14.Ra8 Na8 15.Nb5 Re8 (15...Bb4 16.Ne5+=) 16.Nd6 Qd6 17.Ne5 Nb6 18.Qb3 Nfd5 19.Ba3 Qc7 20.Rc1 Qd8 21.Bc5 Bd7? (21...f6!? 22.Nf3 Nd7+–) 22.e4 (better is 22.Qb1 f5 23.Bb6 (23.Nd7?! Nd7 24.Qb7 f4+–) 23...Nb6 24.Nd7 Nd7 25.Qb7+–) 22...f6?? (better is 22...Qg5 23.Rb1 Ba4+–) 23.ed5 Nd5 24.Nd7 (24.Nd7 Qd7 25.Bb5+–) 1–0. forsetinn (1630) – balihi, gameknot.com, 2013.

7.c4 c5 8.Nc3 0–0 =+.

7.c4 c5 8.d3 0–0 9.Nbd2 b6 (9...Re8 10.Be2=+) 10.Be2 Bb7 11.0–0 Qc7 (11...Qe7 12.ba6 Ra6 13.d4=) 12.h3 (12.cd5 Bd5 13.ba6 Ng4=) 12...Rfe8 (12...ab5 13.ab5 Ra1 14.Ba1=+) 13.Rc1 (13.cd5 ed5 14.Qc2 h6=) 13...ab5 14.ab5 Ra2 (14...e5 15.Ra1=+) 15.Qb3= Rea8 16.Nb1 (16.Rcd1 e5=+) 16...Qd8 (16...dc4 17.dc4 Ne4 18.Nc3 Nc3 19.Qc3=+) 17.Rfd1 (17.Nc3 R2a5=+) 17...R2a4 (17...R2a5 18.Nc3=+) 18.Nc3= R4a5 19.d4 (19.Ra1 Ra1 20.Ra1 Ra1 21.Ba1 Ne5=) 19...Bb8 (19...dc4 20.Bc4 Bf3 21.gf3 cd4 22.Rd4=+) 20.cd5= ed5 21.dc5 bc5 22.Nd5 (22.Qc2 Bd6=) 22...Nd5 23.Rd5 Bd5 24.Qd5 Qe7 (24...Ra2 25.Rc2 Qe7 26.Rd2+=) 25.Rd1 Nf8 26.Bc4 R8a7 27.Ne5 Be5 28.Be5 Ra4 (28...Qe8 29.Bc3 Rd7 30.Ba5 Rd5 31.Rd5+/–) 29.Bd6 Qe6 (29...Qf6!? 30.Bf8 Ra1 (30...Kf8 31.Qc5 Qd6 32.Rd6 Ra1 33.Rd1 Re7 34.Ra1 g6 35.Qd4 Re5 36.Qe5 f6 37.Qc7 h6 38.Ra8) 31.Bg7 Kg7+/–) 30.b6+– Rd7 31.b7 Rb4 32.Qc5 Rd6 33.Rd6 Rb1 34.Kh2 Qe7 35.Bd5 g6 36.f4 Kg7 37.Qd4 Kh6 38.Rb6 (38...Nd7 39.Rb1+–) 1–0. Sokolski,Alexey – Byvschev,Vassily Mikhailovich, Lvov, 1951.

7.c4 c6 8.Nc3 Nb6 9.Qb3 dc4 10.Bc4 Nc4 11.Qc4 Bd7 12.0–0 0–0 13.ba6 Ra6 14.Ba3 Qc7 15.Bd6 Qd6 16.d4 Rfa8 17.Rab1 Bc8 18.e4 Qd7 19.h3 h6 20.Rfd1 Qe8 21.Ne5 Ra5 22.Nd3 Bd7 (better is 22...Qe7!?+=) 23.Rb7+– c5 (better is 23...Bc8 24.Rc7 Ba6+–) 24.Nc5 Bc6 25.Rb2 (25.Rc7 Rc8 26.Rc8 Qc8+–) 25...Qc8 (25...Nd7 26.Nb7 R5a6 27.Rdb1 Ba4 28.Ra2+–) 26.Qd3 (better is 26.Rc1!? Qe8+–) 26...Nd7 27.Nd7 Bd7 28.Nb5 (28.d5!?+–) 28...Ra4+/– 29.Nd6 Qc6 30.e5 Qd5 31.Rdb1 Rd4?? (better is 31...f5 32.Rd1 Ra1+/–) 32.Rb8+– Bc8 33.Qg3 (better is 33.Qc2 Rb8 34.Rb8 Rd1 35.Kh2 Qe5 36.g3+–) 33...Rd1+/– 34.Kh2 Rb1 35.Ne8 (better is 35.Rb1 Ba6 36.Rc1+=) 35...Kf8+= 36.Qg7 Ke8 37.Qg8?? (better is 37.Qh8 Ke7 38.Qf6 Kd7 39.Rb1+=) 37...Ke7–+ 38.Rb1 Qe5 39.Kg1 Qe4 40.Rd1 Bb7 41.Qg3 e5 42.Rc1 (42.f3 Qe3 43.Kh1 Qg5–+) 42...Rc8 43.Rd1 Bd5 44.Qa3 0–1. Tolmacheva,Eva (1930) – Usov,Alexander (1730), 3rd Irkutsk Ermolaev Memorial, 2009.

7.d4 0–0 8.Ba3 e5 =+.

7.d4 0–0 8.c4 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 Nb6 12.Be2 Bd7 13.0–0 Qe7 14.Nc3 Ra8 15.e4 Nh5 16.e5 Bb4 17.g3 f5 (17...Nd5 18.Nd5 ed5 19.Qb3=) 18.Nd2 g6 19.Qb3 c6 20.Nc4 Nc4 21.Bc4 Ra3 22.Qc2 Bc3 23.Bc3 cb5 24.Rb1 Qe8 (24...Rc3 25.Qc3 bc4 26.Rb7 Kf7+=) 25.Bb4+= Ra8 26.Bd3 Bc6 27.Bd6 Ng7 28.Qc5 Increasing the pressure on the isolated pawn on b5 28...f4 29.Bb5 Nf5 30.Bc6 Qc6 31.Qc6 (31.gf4 Qe4 32.Qb6 Nh4–+) 31...bc6 32.Bc5 Ra4 Attacking the backward pawn on d4 33.Rb8 Kg7 34.Rb6 Nd4 35.Bd4 Rd4 36.Rc6 f3 37.h4 h5 38.Re6 Rd1 39.Kh2 Rd2 40.g4 ½–½. Bendig,Frank – Morau,Jose Roberto, CiF, 2004. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 Nbd7 4.e3 e6 5.b5 a6 6.a4 Bd6)

7.d4 0–0 8.c4 dc4 9.Bc4 Nb6 10.Bd3 ab5 11.ab5 Bb4 12.Nc3 Nfd5 13.Qb3 Ra1 14.Ba1 Be7 15.0–0+= Nb4 16.Be2 c6 17.bc6 Nc6 18.Rd1 Nb4 19.e4 Qd6 20.Bb2 Na6 21.Ra1 Qb4 22.Qc2 Nc4 23.Bc1 Na5 24.Ba3 Qb3 25.Qb3 Nb3 26.Ra2 Ba3 27.Ra3 Nc1 28.Bc4 Nb4 29.Na4 b5 30.Bb5+– Bb7 31.Nc5 Ra8 32.Ra8 Ba8 33.Bc4 Nca2 34.Ne1 Kf8 35.f3 Nc3 36.Kf2 Bc6 37.Ke3 Bb5 38.Bb3 Ke7 39.Nc2 Nc6 40.Na3+– Bf1 41.g3 Na5 42.Bc2 Nb5 43.Nb5 Bb5 44.e5 Nc4 45.Kf4 h6 46.h4 Nb6 47.Ke3 Nd5 48.Kd2 h5 49.Be4 Nb6 50.Ke3 Nc4 51.Kf4 Nd2 52.g4 hg4 53.fg4 Be2 54.h5 Ne4 55.Ne4 Kf8 56.Kg3 Bd1 57.Nd6 Be2 58.Kh4 Bd1 59.g5 Bc2 60.Kg3 Bd1 61.h6 Bc2 62.Kg4 Bg6 63.Kf4 Bd3 64.Ke3 Bg6 65.Nc8 Bh7 66.Kf4 Bg6 67.hg7 Kg7 68.Nd6 Bd3 69.Ne8 Kg6 70.Kg4 Be2 71.Kf4 Bd3 72.Nf6 Kg7 73.Ke3 Bc2 ½–½. Van Rooijen,Peter – Maisonneuve,Paul, IECC, 2000.

7.d4 c5 8.dc5 Nc5 9.Be2 =+.

7.Be2 0–0 =+.

5.a4 Be7

6.c4 dc4 7.Bc4 Bd7 8.Nf3 ab5 9.ab5 Ra1 10.Ba1 0–0 11.0–0 c6 12.bc6 Bc6 13.d4 b5 14.Bb3 (14.Bd3 b4=) 14...Nbd7 15.Nbd2 Qc7 16.Bc3?? (16.Qe2 Bb4=+) 16...Rb8 (better is 16...Bf3 17.Nf3 Qc3–+) 17.Ne5 (17.Bb2 Bb4=+) 17...Ne5 (17...Bg2!? 18.Nd7 Bf1 19.Nb8 Bh3–/+) 18.de5=+ Nd5 (18...Nd7 19.Qa1=+) 19.Qa1 (19.Bd4 Nb4=+) 19...Ra8 20.Qb2 Nc3 21.Qc3 Ra3 (better is 21...Rc8–/+) 22.Ne4? (better is 22.Rc1 Ra6 23.Bc2=+) 22...b4–+ 23.Nd2?? (23.Qc4 Rb3! 24.Rc1–+) 23...bc3 (24.Nf3 Bf3–+) 0–1. tanto – pkennedy, net–chess.com, 2001.

6.Nf3= Bd6 7.c4 (7.Be2 0–0=) 7...c6 (7...ab5 8.ab5 Ra1 9.Ba1=) 8.Nc3 (8.d4 b6=) 8...Bd7 (8...0–0 9.d4=) 9.Qb3 (9.bc6 Nc6 10.d4 Bb4=) 9...Qa5 (9...ab5 10.ab5 Ra1 11.Ba1=) 10.Be2 (10.bc6 Nc6 (10...bc6?? 11.Qb7+–) 11.cd5 ed5=) 10...0–0 (10...dc4 11.Bc4 b6 12.e4+=) 11.0–0 e5 (11...Rc8 12.Rfc1=) 12.d3 (better is 12.cd5!? e4 13.Ng5+/–) 12...Be6 (12...dc4 13.dc4 e4 14.Ng5=) 13.d4 (13.Ng5 Nbd7=) 13...e4 (13...dc4 14.Bc4 Bc4 15.Qc4 ed4 16.Nd4=) 14.Nd2 (14.Ng5 dc4 15.Bc4 Bc4 16.Qc4 Qc7 17.Nge4 Ne4 18.Ne4 Bh2 19.Kh1 Qe7 20.Kh2 Qe4=) 14...Nbd7 (14...dc4 15.Bc4 Re8 16.bc6+=) 15.c5 Bc5 (15...Bb8 16.f3=) 16.dc5+= d4 17.Nc4 (17.ed4 Bb3) 17...dc3 (17...Bc4 18.Bc4 Nc5 19.Qa3 dc3 20.Bc3+=) 18.Bc3 Nc5 19.Qc2 (19.Qa3 Qa4 20.Qc5 Qb5 21.Qb5 cb5+/–) 19...Qc7 (19...Qd8 20.bc6 bc6 21.Bf6 Qf6 22.Nb6+=) 20.Bf6 (20.Nd2 Bg4 21.f3 ef3 22.gf3 Bh3 23.Bf6 Ne6+=) 20...gf6= 21.b6 Qe7 22.Rfd1 Bd5 (22...Rfd8 23.a5=) 23.Rac1 (23.a5 Rfd8=) 23...Rfd8 24.a5 Rd7 25.Nd2 Ne6 (better is 25...Nd3!? 26.Bd3 ed3=) 26.Ne4+/– Be4 (26...Rad8 27.Ng3 Qb4 28.Rb1+/–) 27.Qe4 Rd1 28.Rd1+– Qc5 29.Qa4 Re8 30.Qa1 Qe5+/– 31.Qa2 Nf4 32.Bc4+– Nd5 33.Bd5 cd5 34.Qd5 Qd5 35.Rd5 Re5 36.Re5 fe5 37.Kf1 Kf8 38.Ke2 Ke7 39.Kd3 Kd6 40.Kc4 f5 41.f3 h5 42.g3 Kc6 43.h3 Kd6 44.e4 f4 45.g4 hg4 46.hg4 Ke6 47.Kc5 Kd7 48.Kd5 (48...Ke8 49.Ke6+–) 1–0. De Visser,Arno – Leunig, 1982.

6.f4 0–0 7.Nf3 Ne4 8.Na3 (8.Nc3 c5=+) 8...ab5 9.ab5 Bh4 (9...Nd7!?–/+) 10.g3= Bf6 11.Qc1 Nd7 (11...c5 12.Bg2=+) 12.Bg2 Qe7 13.d4 (13.0–0 Rd8=+) 13...c5 14.0–0 Nb6 (14...Rd8!?–/+) 15.Ne5= Na4 16.c4 Nb2 17.Qb2 Re8 (17...b6 18.Nc6 Qd7 19.cd5 ed5 20.Be4 de4 21.Nc4 Ra1 22.Ra1 cd4 23.Nb6+=) 18.Nc2 Ra1 19.Ra1 b6 20.Be4 de4 21.Qa3 Bb7 22.Qa7 Qc7 23.dc5 bc5 24.Ra6 (24.Qa5 Qd6 25.Qa7=+) 24...Qe7 (better is 24...Qc8!? 25.Rd6 h6=) 25.Rb6+/– Qd8 (better is 25...Bc8!? 26.Qe7 Be7+= (26...Re7? 27.Rb8 Re8 28.b6 Be5 29.fe5+–)) 26.Ne1+– (26.Rb7 Qd1 27.Kg2 Qc2 28.Kh3 Qc1–/+) 26...Be5 27.fe5 (27.Qb7? Bc3 28.Qc6 Be1–+; 27.Rb7 Qd1 28.Qa5 Bb2=) 27...Qd2 28.Kf1 (28.Rb7 Qe1 29.Kg2 Qe2 30.Kh3 Qf1 31.Kh4 Qg2 (31...Qc4 32.Rf7 Qf1 33.Rg7 Kf8 34.Rh7 Qh3 35.Kh3 Re7 36.Qe7 Kg8 37.Qf7) 32.Rf7 Qh2 33.Kg4 h5 34.Kf4 Qf2 35.Ke4 Qf7 36.Qf7 Kf7–+) 28...Bc8 29.Rd6 Qb4 30.Qe7! Qc4 (30...Re7 31.Rd8) 31.Kf2 Qb5 (31...Re7?? 32.Rd8 Re8 33.Re8) 32.Rd8 (32...Bd7 33.Qd7 Qd7 34.Rd7+/–) 1–0. Michalek,Martin – Schulz,Hans_Juergen, TT–08 ETC, 2003.

6.f4 Ne4 7.Nf3 Bf6 8.c3 0–0 9.Be2 c6 10.Qb3 ab5 (10...Bh4 11.g3 Be7 12.0–0+=) 11.ab5 Ra1 12.Ba1 Qb6 13.0–0 (13.Bb2 Na6+=) 13...Bd7 (better is 13...c5+=) 14.Na3? (better is 14.Qc2+=) 14...Nd2!–+ 15.Nd2 Qe3 Theme: Double Attack 16.Rf2 Qd2 17.Nc2 Be7 (17...Bh4 18.g3 Be7 19.Kg2–+) 18.Bb2 (18.Qb1 cb5 19.Bb5 Bc5–+) 18...Bc5 19.Nd4 Qe1 20.Bf1 cb5 21.Qc2 Rc8 22.Qd3 b4 (22...Nc6 23.g3–+) 23.Re2 Qh4 24.cb4 Bb4 25.g3 Qd8 (25...Qg4 26.Re5 f6 27.Re2–+) 26.f5 Qb6 27.Bh3 Bc5 28.Kg2 e5! 29.Ne6 Bb5 30.Qd2 Be2 31.Qg5 fe6 32.f6 Bf1! 33.Kh1 Rc7 34.fg7 Rf7 (34...Rf7 35.Be6 Qe6 36.Qd8 Kg7 37.Qg5 Kf8 38.Qd8 Qe8 39.Qa5 Bb5 40.Qa4 Rf1 41.Kg2 Rg1 42.Kf3 Qh5 43.Qg4 Rf1 44.Kg2 Rf2 45.Kh1 Qh2#) 0–1. Schiffler – Pallwitz, corr, 1951.

6.c4 0–0

7.Nc3 c5 8.d4 (8.Nf3!?=) 8...ab5 (8...cd4 9.ed4 Nbd7 10.Nf3–/+) 9.ab5 Ra1 10.Qa1 cd4 11.ed4 dc4 (11...b6 12.Nf3–/+) 12.Nf3+= Bb4 13.Bc4 Qc7 14.Nd2 Qf4 (14...Ne4 15.Nce4 Qc4+=) 15.Ke2 (15.Nf3!?=) 15...Qg4 (15...Qd4?? 16.Nce4 Qb6 17.Bf6+–) 16.Nf3 Nbd7 (16...Nh5 17.Kf1 Nf4 18.Rg1+=) 17.Bd3 (better is 17.h3!? Qf4 18.Rd1+=) 17...e5–/+ (17...Qg2?! 18.h3 Nd5 19.Rh2 Nf4 20.Ke3 Bc3 21.Rg2 Ng2 22.Ke2 Nf4 23.Ke3 Ng2 24.Ke2 Nf4 25.Ke3 Ng2=) 18.h3 (18.de5? Ne5 19.h3 Qh5–+) 18...Qe6 19.de5 (19.d5 Qd6 (19...Nd5?! 20.Bh7 Kh8 21.Nd5 Qd5 22.Rd1=) 20.Bc2 e4–+) 19...Ne5–+ 20.Ne5 Qe5 21.Ne4 Qh5 22.g4 Ng4?? (better is 22...Bg4 23.hg4 Qg4 24.f3 Qg2 25.Ke3 Ne4 26.Ke4 Qg6 27.Ke3 Qg5 28.Kf2 Qd2 29.Kg3 Bd6 30.Be5 Qd3 31.Bd6 Qd6 32.Kg2 Qd2 33.Kg3 Qg5 34.Kh3 Qb5–+) 23.hg4 Bg4 24.Ke3 Qd5?? (24...Bc5 25.Nc5 Qc5 26.Bd4 Qe7 27.Kd2+–) 25.Rh7!! f6 (25...Kh7 26.Nc3 Double attack (26.Nc3 Decoy)) 26.Qh1 Bc5 27.Kd2 Bb4 28.Kc2 Rc8 29.Nc3 Bf3?? 30.Rh8 Kf7 31.Rc8 Bc3 32.Bc4 (32.Bc4 Bh1 33.Bd5 Bd5 34.Rc7 Ke6 35.Kc3+–) 1–0. Lunin,Mikhail (2130) – Poplevin,Alexander (2100), Ramenskoe, 2010.

7.cd5 Nd5 8.Bc4 (8.e4 Nb4=+) 8...c6 (8...ab5 9.ab5 Ra1 10.Ba1=+) 9.Nf3 Bf6 (9...Nb6 10.Be2=+) 10.d4 ab5 11.ab5 Ra1 12.Ba1 Qa5 13.Nbd2 cb5 14.Bd5 (14.Bd3 Nc6=+) 14...ed5=+ 15.0–0 Nc6 16.Qb3 Be6 17.Rb1 b4 18.Bb2 Qd8 19.Ra1 Qd6 20.Ne1 Bd8 21.Nd3 Bc7 22.Nf3 Bf5 23.Nf4 (23.Nc5 b6 24.Na6 Bd8=+) 23...Rd8 24.Ne5 h6 (24...f6 25.Nf3–/+) 25.Qd1 (25.Ra4 b5 26.Ra1 Na5–/+ (26...Ne5?! 27.de5 Qc6 28.Rc1=)) 25...Qf6 (25...f6 26.Nf3–/+) 26.Nh5 Qe6 27.Nf4 Qe7 28.Qh5 Qf6 29.Rc1 Bh7 (29...Be5 30.de5 Qg5 31.Qg5 hg5 32.Ne2–/+) 30.Rc5=+ Be5 31.de5 Qe7 32.Rd5= Rd5 33.Nd5 Qc5 34.e6+/– Qc2?? 35.ef7 Kf8=+ 36.Bg7 Kg7 37.Qg4 Qg6 38.Qd1 Qb1 39.Qb1 Bb1 40.f4 Kf7 41.Kf2 Be4 42.Nb6 b3 43.Nc4 Ke6 44.g4 Nb4 45.f5 Kf6 46.Nd2 Bc2 47.Ke2 b2 (48.Kf3 Nd3–+) 0–1. Niephaus,Friedel – Kierzek,Mira, Kassel (Women), 1990.

7.Ne2 dc4 8.ba6 Ra6 9.Nf4 –/+.

7.Ne2 c6 8.Nbc3 b6 9.Nf4 (9.cd5 cd5 10.ba6 Na6=+) 9...Bb7 (9...e5 10.Nh5–/+) 10.Qc1 (10.cd5 Nd5 11.Ncd5 ed5=) 10...Ne4 (10...dc4 11.Bc4 e5 12.ba6 Ba6 13.Ba6 Na6 14.Nh3–/+) 11.Nd1 (better is 11.bc6 Bc6 12.cd5 ed5 13.d3=+) 11...Nc3?? (better is 11...dc4 12.Bc4 Nd6–/+) 12.ba6+– (12.dc3?! dc4 13.Bc4 cb5 14.ab5 e5 15.ba6 Na6+–) 12...Nb5?? (12...Ba6 13.Qc3 Bf6+–) 13.Nd5! Nd4 (13...ed5 14.ab7) 14.Nf6! +–. Melich,J – Rajnak,D, Praha ch–CZE, 1992.

7.Ne2 c6 8.Nbc3 dc4 9.ba6 Na6 10.Ng3 –/+.

7.Ne2 c6 8.Nf4 dc4 9.Bc4 ab5 10.ab5 Ra1 11.Ba1 Bd7 =+.

7.Qf3 ab5 8.ab5 Ra1 9.Ba1 Nbd7 =+.

7.Nf3 ab5 8.ab5 Ra1 9.Ba1 Qd6 10.d4 b6 11.cd5 ed5 12.Bd3 c5 13.dc5 bc5 14.0–0 Bb7 15.Qa4 (15.Qc2 Nbd7=) 15...Nbd7 (15...d4 16.Rd1=) 16.Nbd2= Qe6 17.Rd1 Ra8 18.Qc2 Qg4 19.h3 Qa4 20.Qb1 Qa2 Black prepares the advance c4 21.Qc1 c4 22.Bc2 Qa5 23.Nd4 Bb4 24.Nf1 Re8 25.Ng3 g6 26.Qb1 Rc8 Black plans c3 27.Nge2 Kf8 28.h4 c3 29.Nf4 Ne5 30.Qb3 Ned7 31.h5 Rc4 32.Qb1 Ne5 33.Bb3 Rc5 Exerts pressure on the isolated pawn 34.Rc1 Ne4 (34...gh5? 35.Nfe6 fe6 36.Ne6 Ke7 37.Nc5 Bc5 38.Bc3 Qb5 39.Be5+–) 35.Rc2 Nd2 36.Rd2 cd2 37.Nde6 fe6 38.Ne6 Ke7 39.Nc5 Bc5 40.Be5 Qb5 41.Bc3 Qc6 ½–½. Wantoch_Rekowski,Jacek (2305) – Grochowski,Mariusz (2230), Roman Kaminski Memorial Poland, 2006.

7.Nf3 c6 8.Nc3 b6 9.Be2 Bb7 10.0–0 Ne4 11.cd5 Nc3 12.Bc3 Qd5 13.Ne5 Ra7 14.Bf3 Qd6 15.bc6 Nc6 16.Nc4 Qc7 17.Qb3 Na5 18.Qb6 Qc4 19.Qa5 Bf3 20.gf3 Rd7 21.Qh5 Rd5 22.Qh3 Rc8 23.Kh1 Rcc5 24.Qg4 Qg4 25.fg4 h5 26.Rg1 g6 27.h3 Rc4 28.f3 Bb4 29.Bb4 Rb4 30.Ra2 Ra5 31.Rga1 hg4 32.hg4 Rc5 33.Kg2 Kg7 34.Kf2 Kf6 35.Ke2 Rb3 36.Ra3 Rb2 37.R1a2 Rb1 38.Ra1 Rb2 39.R3a2 Rb3 40.Ra3 Rb2 41.a5 Rcc2 42.Rd3 Ra2 43.Rb1 Rc7 44.Rb6 Ra5 45.Rdd6 Ra7 46.f4 Ra4 47.g5 Ke7 48.d4 a5 49.Kf3 Rb4 50.Ke4 Rb6 51.Rb6 a4 52.Rb2 a3 53.Ra2 Kd6 54.Kd3 Kd5 55.Kc3 Ke4 56.Kd2 Ra8 57.Ke2 Ra4 58.Kd2 Kd5 59.Kc3 Kc6 60.Kb3 Kb5 61.Kc3 Rc4 62.Kb3 Rb4 63.Kc3 Ka4 64.e4 Rb3 65.Kc4 Re3 66.Rh2 Re1 67.Rh8 Rc1 68.Kd3 a2 69.Ra8 Kb3 70.Rb8 Ka3 71.Ra8 Kb2 72.Rb8 Ka1 73.d5 ed5 74.ed5 Rb1 75.Rh8 Kb2 76.Rh2 Kb3 77.Ra2 Ka2 78.Kd4 Kb3 79.Kc5 Kc3 80.d6 Rd1 0–1. Melich – Rajnak, Praha 1992.

7.Nf3 c6 8.Nc3 Bd7 9.Ne5 Be8 10.Qb3 Nbd7 11.d4 Qc7 12.f4 Ne5 13.fe5 Ng4 14.b6 Qd8 15.Kd2 c5 16.cd5 cd4 17.ed4 ed5 18.Nd5 Bg5 19.Ke1 Bc6 20.Bc4 Rb8 21.Ba3 Re8 22.Rf1 Ne5 23.de5 Re5 24.Kf2 Bd5 25.Bd5 Be3 26.Qe3 Re3 27.Bf7 Kf7 28.Ke3 Kg8 29.Rf8 Qf8 30.Bf8 Kf8 31.a5 Rc8 32.Kd4 Ke7 33.Re1 Kd6 34.Re5 Rc4 35.Kc4 Ke5 36.Kc5 h5 37.h4 g6 38.g3 Ke6 39.Kd4 Kd6 40.Ke4 Kc5 41.Ke5 Kb5 42.Kd6 Ka5 43.Kc7 Kb5 44.Kb7 a5 45.Kc7 a4 46.b7 a3 47.b8Q Ka4 48.Qb1 1–0. Roell – Fitz, 1990.

7.Nf3 dc4

8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.0–0 cb5 12.Bb5 Qa5 13.Nc3 b6 14.d3 (14.Qe2 Bb7 15.Rb1 Rd8 16.e4 Nc6 17.Bb2 e5 18.Ra1 Qb4 19.Ra2=; 14.Bb2 Qb4 15.Qc2 Bb7 16.Nd4 Bc5 17.Na2 Qa5 18.Bc4 Bd4 19.Bd4=; 14.Qb3 Bb7 15.Ne5 Rc8 16.Nc4 Qa7 17.Na4 Nfd7 18.d3 Bd5 19.Bd4+=) 14...Bb7 15.Ne5 Rc8 16.Nc4 Qb4 17.Qa4 Rc7 18.Qb4 Bb4 19.Rb1 +/–.

8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.0–0 cb5 12.Bb5 Qa5 13.Nc3 Bd7 14.Qa4 (14.Qb3 Rd8 15.Rb1 Na6 16.Be2 Bc6 17.Nd4 Nc5 18.Nc6 Nb3 19.Na5=; 14.Qb1 Rd8 15.Bd7 Rd7 16.Rc1 Nc6 17.Nb5 Nd5 18.Nbd4 Rc7 19.Nc6=; 14.Qe2 Rc8 15.Bd7 Nbd7 16.Bb2 Qb4 17.Rb1 e5 18.e4 Qc4 19.Qc4=; 14.Be2 b5 15.Qb3 b4 16.Na2 Ba4 17.Qb2 Nc6 18.Nc1 Qd5 19.d3+=) 14...Qa4 15.Ba4 (15.Na4?? Bb5 16.Bf6 Bf6–+ (worse is 16...gf6 17.Ra1–+; 16...Ba4?! 17.Be7 Rc8 18.Rb1=)) 15...Ba4 16.Na4 b5 (16...Nd5 17.Rb1 Nc6 18.Nb6 Nb6 19.Rb6=) 17.Nc3 (17.Bf6 gf6 (17...ba4? 18.Be7 Rc8 19.Ra1+–) 18.Nb2 Rc8= 19.Rb1=) 17...b4+= 18.Nb5 (18.Ne2 Nbd7 19.Ned4–/+) 18...Rc8 (18...Nbd7 19.d3–/+) 19.Rb1 Ne4 20.Nbd4 Nc5 21.Rb4 Nb3 22.Rb8 Rb8 23.g3?? (better is 23.Nc6 Rb7 24.Ne7 Re7 25.Bc3–/+) 23...Na1–+ 24.Nc6 Rb1 25.Kg2 Bf6 26.d4 Nc2 27.e4 (27.g4 Ne1 28.Ne1 Re1–+) 27...Ne1 (27...Rb6!? 28.Nce5–+) 28.Ne1 Re1 29.e5 Rc1 30.Na5 Bd8 31.Nb3 Rc3 32.Nd2 Rd3 33.Nf3 Bb6 34.h4 Bd4 35.Nd4 Rd4 36.f4 (36.h5 f6 37.Kf3 fe5–+) 36...Rd3 (36...h5 37.Kf2–+) 37.Kh3 h5 38.Kg2 Kh7 0–1. Kamaletdinov,Farit (1970) – Shevchenko,Ivan (2095), Astrakhan Championship Men, 2011.

8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.0–0 cb5 12.Bb5 Qa5 13.Nc3 Bd7 14.Qb3 Qa3 15.Qa3 Ba3 16.Rb1 Nc6 17.d4 Ra8 =.

8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.0–0 cb5 12.Bb5 Qa5 13.Nc3 Rd8 14.Qb1 (14.d4 Bd7 15.Bd3 Nc6 16.Qb3 Nb4 17.Be2 Qf5 18.Rc1 Bc6 19.Ne5=; 14.d3 Bd7 15.Qb1 Nc6 16.Ne2 Nd5 17.Bc4 Nb6 18.Bc3 Qc5 19.Bb3=; 14.Ne5 Nbd7 15.Nc4 Qc7 16.Qf3 b6 17.d4 Bb7 18.Qh3 Bc6 19.Nd2+=) 14...Nc6 15.d4 Qb4 16.Qc2 Qd6 17.Rc1 Nb4 18.Qb3 Bd7 19.Bc4 =.

8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.0–0 cb5 12.Bb5 Qa5 13.Bf6 gf6 14.Be2 (14.Nc3 Rd8 15.Qc2 Bb4 16.Rb1 Na6 17.Qb3 Bc3 18.dc3 e5 19.Bc4+=; 14.Qb3 Qb4 15.Qb4 Bb4 16.Rc1 Rd8 17.d4 Kg7 18.Kf1 Bd7 19.Bd7+=; 14.Qe2 e5 15.d4 Bg4 16.Nbd2 Rd8 17.Rd1 Nc6 18.Rb1 Qc7 19.h3+=) 14...Rd8 15.d4 Qc7 16.Qb3 e5 17.Bc4 Bf8 18.Nc3 Nc6 19.Nd5 +=.

8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.0–0 cb5 12.Bb5 Qa5 13.Bf6 Bf6 14.Qa4 Qa4 15.Ba4 e5 16.d4 ed4 17.Nd4 Rd8 18.Rc1 Na6 19.Nd2 =.

8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.0–0 cb5 12.Bb5 Qa5 13.Bf6 Bf6 14.Qb3 e5 15.d4 ed4 16.Nd4 Qb6 17.Nc3 Nc6 18.Nde2 Be6 19.Nd5 =.

8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.0–0 cb5 12.Bb5 Qa5 13.Bf6 Bf6 14.Bd3 Nd7 15.Qc2 Qh5 16.Be4 e5 17.Rc1 b6 18.Qc7 Nc5 19.Nc3 =.

8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.0–0 cb5 12.Bb5 Qa5 13.Bf6 Bf6 14.Qe2 e5 15.Nc3 Rd8 16.Rb1 Qc7 17.Bc4 Nc6 18.Nd5 Qd6 19.d3 =.

8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.0–0 cb5 12.Bb5 Qd5 13.Nc3 Qd6 14.e4 Qf4 15.e5 Nfd7 16.Ne2 Qg4 17.Qc2 b6 =.

8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.0–0 cb5 12.Bb5 Bd7 13.Be2 Bc6 14.Bf6 Bf6 15.d4 Qd6 16.Qd3 Na6 17.Nc3 Be7 =.

7.Nf3 Nbd7

8.ba6 ba6 9.Nc3 Rb8 =+.

8.ba6 Ra6 9.cd5 Rb6 10.Bd4 +=.

8.ba6 Ra6 9.cd5 Rd6 10.de6 Re6 11.Qc2 +=.

8.Qc2 ab5 9.ab5 Ra1 10.Ba1 =.

8.Qc2 c5 9.bc6 bc6 10.Be2 Rb8 =.

8.Qc2 c5 9.Be2 ab5 10.ab5= Ra1 11.Ba1 Qc7 (11...Bd6 12.0–0=) 12.0–0 b6 (12...Bd6 13.d3=) 13.cd5 (13.d3 Bb7=) 13...ed5 14.Nd4 (14.d3 Re8=) 14...Bd6=+ 15.Nf5 (15.Nf3!?=+) 15...Bh2–/+ 16.Kh1 Bd6 17.g4 (17.d4!?–/+) 17...Bb7–+ 18.f3 Ra8 19.Bb2 Ne8 20.Kg2 Ne5 21.Rh1 Ng6 22.Nc3 Qd7 23.Nd1 d4 24.Nf2 Rc8 25.Ne4 Be5–+ 26.Bc4 h6 27.Kf2 de3 28.de3 Bb2 29.Qb2 Be4 30.fe4 Rd8 31.Bd5 Kf8 32.Kf3 Qc7 33.Qc3 Qe5 34.Qe5 Ne5 35.Kf4 Nd3 36.Kf3 Nd6 37.Nd6 Rd6 38.Ra1 0–1. Buczinski,Henryk – Wrobel,Jozef, Katowice, 1966.

8.Qc2 c5 9.Be2 dc4 10.Bc4 ab5 11.Bb5 =.

8.cd5 Nd5 9.Be2 ab5 10.ab5 Ra1 11.Ba1 c5 12.0–0 b6 13.d4 Bb7 14.Nbd2 cd4 15.Bd4 Bf6 16.Nc4 Bd4 17.Nd4 (worse is 17.ed4 Nc3 18.Qd2 Nb5+=) 17...Nc3 18.Qd2 Ne2 19.Qe2 Qc7 20.f4 Bd5 21.Rc1 (21.Nd2 Qc3=) 21...Rc8+= 22.Qd2 Qd8 23.Qd3 f6 24.Rc2 Nc5 25.Qf1 Ra8 26.h3 Be4 27.Nc6 Qc7 28.Rd2 h6 29.Kh2 Ra4 30.Qe2 Bc6 31.bc6 Qc6 32.Rd8 Kh7 33.Rd6 Qc7 34.Qc2 Exerts pressure on the isolated pawn 34...f5 35.Re6 Qf7 36.Nb6 Qe6 37.Na4 Na4 38.Qa4 Qe3 39.Qc4 h5 40.h4 Qe1 41.g3 Qe4 42.Qa2 Qe3 43.Qd5 Qe2 ½–½. Hoebel,Hartmut (2140) – Schlotthauber,Werner (2100), GER–ch36 V7 email, 2004.

8.Be2 dc4 9.0–0 =+.

8.Be2 Nc5 9.0–0 ab5 10.ab5 (10.cb5 Ra5=) 10...Ra1 11.Ba1 b6 (11...dc4 12.Bc4 Ncd7 13.Qc2=) 12.Qc2 (12.Bf6 Bf6 13.d4 Ne4+=) 12...Bb7 (12...dc4 13.Bc4 Bb7 14.Bf6 Bf6 15.d4 Bf3 16.gf3+=) 13.d4 (13.Bf6!? Bf6 14.d4+=) 13...Nce4= 14.Nbd2 Qd6 (14...dc4 15.Nc4 Nd6 16.Nce5+=) 15.Rc1 (15.Ne4 Ne4 16.Bd3 Ra8+=) 15...h5 (15...Ra8 16.Ne4 Ne4 17.Bd3=) 16.Ne4 de4 17.Ne5 Ng4 (17...Ra8!?+=) 18.Ng4 hg4 19.Bg4 (19.c5 Qd5+/–) 19...f5 (19...Ra8!?+/–) 20.c5+– bc5 (20...Qd5 21.Be2 f4 22.ef4 Rf4 23.cb6 cb6 24.Qc7+–) 21.dc5 Qd3 22.Be2 Qc2 23.Rc2 c6 24.Bd4 Ra8 25.Bc4 Kf7 26.g3 Ra5 27.Rb2 g5 28.bc6+– Ba6?? 29.Ba6 Ra6 30.c7 Rc6 31.Rb7 Ke8 32.Rb6 Rc7 33.Re6 Kf7 34.Re5 Kg6 35.h3 Rb7 36.g4 f4 37.Re4 fe3 38.Re3 Bd8 39.Re8 Rd7 40.Be3 Kf7 41.Re4 Rd5 42.Rd4 Rd4 43.Bd4 Ke6 44.Kg2 Kd5 45.Be3 Be7 46.Kf3 Ke5 47.c6 Kd6 48.Ke4 (48...Kc6 49.Kf5+–; better is 48.Bc5! Kc6 49.Be7 Kd7+–) 1–0. Eick – Graefendorf, corr DDR, 1984.

8.Be2 Nc5 9.0–0 dc4 10.Bc4 Bd7 11.Qc2 =.

6.Nf3 0–0

7.Nc3 c5 8.Be2 ab5 (8...Bd6 9.d4=) 9.ab5 Ra1 10.Qa1 Nbd7 11.Na4 b6 12.0–0 Qc7 13.Ne5 Re8 14.c4 Bf8 (14...Bb7 15.Nd7 Nd7 16.cd5=) 15.d4 Ne5 16.de5 Nd7 17.cd5 ed5 Can e5 get defended? 18.f4 Bb7 19.Nc3 c4 (19...Rd8 20.Bf3 d4 21.Qa7 dc3 22.Bc3+=) 20.Bf3+= Qc5 21.Bc1 f6 (21...Ra8!? 22.Qb1 Rd8+=) 22.Qa7+/– Qc8 23.Nd5 fe5 24.Nb6 Nb6 25.Qb7 (25.Qb6?! Bf3 26.Rf3 Bc5=) 25...Qb7 26.Bb7 ef4 27.Rf4 Bc5 28.Kf2 Rd8 (28...Re7 29.Be4+/–) 29.Rf5+– Bb4 30.e4 h6 (30...Bd2 31.Ba3+–) 31.Ke2 c3 32.Bd5 Kh7 33.Kd3 Kg6 (33...Nc8 34.Be3+–) 34.Be3 Nd5 35.Rd5 Rc8 36.Kc2 Rb8 37.b6 Rb7 38.Kb3 Be7 (38...c2 39.Kc2 Kf7 40.Kb3+–) 39.Kc3 Bf6 40.Kc4 Kf7 41.Kb5 Ke6 (41...Re7 42.Bf4 Re4 43.b7+–) 42.Kc6 Rb8 43.Bf4 Rc8 (43...Rb6 44.Kb6 g5 45.Rd6 Kf7 46.e5+–) 44.Bc7 1–0. pvanr (1730) – justnow (1770), gameknot.com, 2009.

7.c4 b6 8.Be2 Bb7 9.0–0 Nbd7 10.Qc2 c6 11.cd5 cd5 12.d4 a5 13.Bd3 Rc8 14.Qe2 Bd6 15.Ne5 Bb4 16.f4 Ne4 17.Na3 Nc3 18.Bc3 Rc3 19.Nc2 Bd6 20.Rf3 Nf6 21.Rh3 g6 22.Ne1 Kg7 23.g4 Ne4 24.Be4 de4 25.g5 Bd5 26.Ng4? Bf4!–+ 27.Rh7 Kh7 28.Nf6 Kg7 29.ef4 Qc7 30.Qf1 Rh8 31.Ng2 Qc4 32.Qc4 Rc4 33.Nd7 Rd4 34.Nb6 Bb3 35.Ne3 Rh3 36.Nf1 Rf3 37.Rb1 Rd1 38.Rd1 Bd1 39.Nd2 Rf4 40.Nbc4 Ba4 41.b6 Bc6 (42.Nb3 Rg4 43.Kf1 a4–+) 0–1. Dzieniszewski,Andrzej – Wilczewski, Poznan, 1984.

7.c4 b6 8.Be2 dc4 9.Bc4 c6 10.0–0 =.

7.c4 c6 8.Nc3 Nbd7 9.d4 dc4 10.Bc4 Nb6 11.Bd3 Nbd5 12.0–0 Bd7 13.Qe2 Nc3 14.Bc3 Nd5 15.Bb2 ab5 16.ab5 Qb6 17.Ne5 Qc7 18.Ra8 Ra8 19.Qh5 g6 20.Qf3 Be8 21.e4 Nb4 22.Bb1 cb5 23.Rc1 Qd8 24.h3 Bd6 25.Ng4 f5 26.ef5 ef5 27.Qb3 Kf8 28.Nh6 Qd7 29.Qg8 Ke7 30.d5 Kd8? (30...Nd5!) 31.Bf6 1–0. Gross – Merten, xiv (87–02–14), 1987 (Gross).

7.c4 c6 8.Nc3 Nbd7 9.Be2 e5 10.d4 e4 11.Ne5 Qc7 12.cd5 cd5 ½–½. Dzieniszewski – Sobura, Warszawa 1984.

7.c4 Nbd7 8.ba6 ba6 9.Nc3 =+.

7.c4 Nbd7 8.cd5 Nd5 9.ba6 ba6 10.Nc3 =+.

7.d4 ab5 8.ab5 Ra1 9.Ba1 c6 10.bc6 bc6 11.c4 +=.

7.d4 ab5 8.ab5= Ra1 9.Ba1 c6 10.Nbd2 Qa5 11.bc6 bc6 12.Bd3= Ba6 13.0–0 Bd3 14.cd3 ½–½. Majzik,Levente (2315) – Deak,Sandor (2335), HUN tt2, 2001.

7.d4 ab5 8.ab5 Ra1 9.Ba1 Ne4 10.Bd3= f5 11.0–0 Bd6 12.Nbd2 c6 13.bc6 Nc6 14.c4 Nd2 (14...b6 15.cd5 ed5 16.Qb3 Nd2 17.Nd2=) 15.Qd2+= Kh8 16.Bc2 (16.c5 Bc7+/–) 16...Qe7 (16...dc4 17.Rb1+=) 17.Qe2 (17.c5 Bc7+=) 17...dc4 18.Qc4 e5 19.de5 Ne5 20.Ne5 Be5 ½–½. Krivoshapko,Alexander – Karabut,Vladimir, 2011.

7.d4 c5 8.dc5 Ne4 =.

7.d4 c5 8.bc6 Nc6=+ 9.Nbd2 b6= 10.Be2 Bb7 11.0–0 Rc8 12.c4 Bb4 13.Ba3= Ba3 14.Ra3 Na5 15.cd5 Nd5 16.Qa1 Qe7 17.Rb1 Rc6 18.e4 Nf4 19.Bf1 Rfc8 20.g3 Ng6 21.Ra2 Qd8 22.Rab2 Nf8 23.Bh3 Rd6 24.Qa3 Ng6 25.d5 Nf8 26.Qe3= Rc5 27.e5 Rdd5 28.Rb6 Qc8 29.Ne4 Nc4–/+ 30.Nf6?? gf6=+ 31.Qh6 Ne5 32.Ne5= Re5 33.Rb7 Re1 34.Re1 Qb7 35.Qf6 Qb4 36.Rd1 Qa4 37.Rd8 Qb4 38.Qh6 Re5 39.Bf1 Qe7 40.Rb8 a5 41.Bd3 f5 42.Bc4 Kf7 43.Be2 Kg8 44.Bc4 Kf7 45.Bb5 Rc5 46.Be8 Kg8 47.Ba4 Kf7 48.Be8 Kg8 49.Bh5 Re5 50.Bf3 Qg7 51.Qd2 Qf6 52.Qc3 f4 53.Be4 h6 54.Rb5 Nd7 55.Qa5 Rb5 56.Qb5 fg3 57.hg3 Qd4 58.Qd3 (58.Qb7 Kf8=) ½–½. Muri,Heinrich – Harestad,T, 6. EU/MSM/section, 2002.

7.d4 Ne4 8.Nbd2 =+.

7.d4 Ne4 8.Bd3 =.

7.Be2 c5 8.bc6 (8.0–0 ab5 9.ab5 Ra1 10.Ba1 Nbd7+=) 8...bc6 9.0–0 c5 10.c4 Nc6 11.d4 Rb8 12.Qc1 Na5 (12...Qb6!? 13.Bc3 Bd7+=) 13.Nbd2= dc4 14.Bc4 (14.dc5 Bc5 15.Rd1 Nd5=) 14...Nc4 15.Nc4 Bb7 16.dc5 Bf3 17.gf3 Qd5 18.e4 Qc5 19.Ba3 Qa7 (19...Qc7 20.Ne3 Qa7 21.Be7 Qe7 22.Qa3 Qa3 23.Ra3+=) 20.Be7 (20.Ne5 Rb3=) 20...Qe7+= 21.Qa3 Qa3 22.Ra3 Rfc8 23.Nd6 Rc6 24.Rd1 g6 25.e5 Nd5 26.Ne4 Kg7 27.Kg2 Rb4 28.Nd6 Kf8 29.Ne4 Ke7 30.Kg3 Rcc4 (30...a5–/+) 31.Nd6 (31.a5 h5+=) 31...Rc5 (31...Rh4 32.Ne4 Rh5 33.Rc1 Re5 34.Raa1–+) 32.a5 (32.Ne4 Ra5+=) 32...Nc3 (better is 32...f5–/+) 33.Rd3?? (better is 33.Re1–/+) 33...Ne2–+ 34.Kg2 (34.Kh3 Nf4 35.Kg4 Nd3 36.Kg3 Ne5 37.Ne4–+) 34...Nf4 35.Kg3 Nd3 (35...Rc1 36.Ne4 g5 37.Rd7 Kd7 38.Nf6 Ke7 39.Nd5 ed5 40.Ra1 Ra1 41.Kg4 Rg1 42.Kf5 Nd3 43.f4 Rf4) 36.Rd3–+ Re5 (36...Re5 37.Ne4 f5–+) 0–1. Melderis,Uldis (1975) – Manea,Alexandru (2385), Golden Sands BUL, 3rd Grand Europe Open, 2014.

7.Be2 Bd6 8.0–0 =.

7.Be2 Nbd7 8.0–0 Ne4 9.d3 Nd6 (9...Bf6 10.Nd4 Nec5 11.Nc3 e5 12.Nf3 c6 13.h3 Qc7 14.Qd2 h6) 10.c4 (10.Nc3 Bf6 11.Nd4 Bd4 12.ed4 Qh4 13.Qc1 Qd4 14.Ne4 Qb6) 10...Bf6 (10...ab5 11.ab5 Ra1 12.Ba1 dc4 13.dc4 f6 14.Nc3 Qe8) 11.Bf6 (11.Nc3 dc4 12.dc4 b6 13.Qc2 Bb7 14.Rfd1 Nc5) 11...Qf6 12.Nbd2 dc4 (12...h6 13.d4 ab5 14.ab5 Ra1) 13.dc4 (13.Nc4 Nc4 14.dc4 Nc5) 13...Nc5 (13...Rd8 14.Qb1 a5) 14.Nb3 Nde4 (14...Nb3=) 15.Nc5 Nc5 16.Qd4 Qe7 17.Qb2 f6 18.Rfd1 e5 19.Ne1 Be6 20.b6 a5 21.bc7 Qc7 22.Nd3 b6 23.Nc5 bc5 24.Bf3 Rab8 25.Qc2 Rfd8 26.Bd5 Bd5 27.cd5 Rb4 28.f3 c4 29.Ra3 Qc5 30.Qe4?? (better is 30.Rad3!=) 30...c3–+ 31.Qd3?? (better is 31.Qc2 Qe3 32.Kf1–+) 31...c2 32.Rc1 Rb1 (32...Rd5?! 33.Qc2 Qc2 34.Rc2+=) 33.Ra1 Rd5 (33...Rd5 34.Qd5 Qd5 35.Rab1 cb1R 36.Rb1 e4 37.Rb8 Kf7 38.fe4 Qd2–+) 0–1. Dziel,Jaromir – Grzegorowski,Artur (1985), Wielkopolska IV Liga Seniorow Poland, 2010.

7.Be2 Ne4 8.0–0 ab5 9.ab5 Ra1 10.Ba1 Nd6 11.Na3 Qe8 12.Qb1 f6 13.d4 Nd7 14.c4 dc4 15.Nc4 Nc4 16.Bc4 Nb6 17.Bd3 Qh5 18.e4 f5 19.ef5 Bd6 20.Qb3 Kh8 21.Re1 ef5 22.Bc3 Re8 23.Qa2 Re1= 24.Be1 Qe8 25.Ba5 Be6 26.Qe2 Qc8 27.Bb6 cb6+= 28.Qe3 Kg8 29.h4 Kf8 30.h5 Bf7 31.Nh4 f4+= 32.Qe4 (32...Qc1 33.Kh2 f3 34.g3+=). Woelfelschneider,Peter – Baer,Werner, TT–17 ETC, 2005.

7.Be2 Ne4 8.0–0 Bf6 9.Ne5 =.

7.Ne5 ab5 8.Bb5 c6 =.

7.c4 ab5

8.ab5 Ra1

9.Ba1 dc4 10.Bc4 Nbd7 11.d4 b6 (11...Nb6 12.Bd3=) 12.0–0 Bb7 13.Nbd2 Qa8 (13...Ne4 14.Bb2+=) 14.Bb2+= Ne4 (14...Bb4 15.Be2+=) 15.Ne4 (15.Qe2 Qa5+=) 15...Be4= 16.Qe2 Nf6 (16...Qb7 17.Ra1=) 17.Ra1 (17.Ne5 Bd5+/–) 17...Qb7+= 18.Ne1 (18.Ne5 Ra8 19.f3 Ra1 20.Ba1 Qa7+=) 18...Ra8= 19.Ra8 Qa8 20.f3 Bd5 (20...Bb7 21.Qc2=) 21.e4+= Bb7 22.Qd3 (22.Qc2 Ne8+=) 22...h6 (22...Ne8 23.Qc3+=) 23.Qb3+= Kh7 (23...Qa5 24.Bc3 Qa3 25.Qa3 Ba3 26.Nc2+=) 24.Nd3 Nd7 (24...Kg8 25.Ne5+=) 25.Qc3 (25.g3 Qa5+=) 25...Bf8 (25...Qa4 26.g3+=) 26.h3 Qa4+= 27.Nf4 Qd1? 28.Kh2+– Bd6? 29.e5 Be7 30.Be2 Qa4 31.Qc7 Bg5 32.Nd3 Nf8 33.f4 Bh4 34.Qf7 Qc2 35.Bf1?? Ng6 36.Qb7+– Nf4 37.Nf4 Qf2 38.Qe4 g6 39.Qg6 Kh8 40.Qg4 Qf1 41.Qh4 Qb5 42.Qh6 Kg8 43.Qg6 Kf8 44.Ne6 Ke7 45.Qf6 Kd7 46.Qd8 Ke6 47.d5 Kf5 48.Qf6 Ke4 49.Qf3# 1–0. Levin,Anatoly – Edlund,Robin (2225), Internet Section, 2004.

9.Ba1 c5 10.Be2 Nbd7 11.0–0 Qc7 12.d3 b6 13.Nbd2 Bb7 14.Bb2 Ne8 15.Qb3 Nd6 16.Ra1 Rd8 17.Ne5 f6 18.cd5 fe5 19.de6 c4 20.Nc4 Nc5 21.Qc3 Nc4 22.Qc4 Bd5 23.Qc3 Bd6 24.f4 Ne6?? 25.fe5 Qc3 26.Bc3 Be7 27.Ra7 Bg5 28.Kf2 Rc8 29.Bb4 Rc2 30.g3 Nc7–/+ 31.e4? Nb5–+ 32.ed5 Na7 33.e6 Nb5 34.Kf1 Rb2 35.e7 Kf7 (36.Be1 Bf6–+) 0–1. Adam,Stefan – Soldner,Hartmut, corr DDR, 1988.

9.Ba1 c6 10.Qb3 Nbd7 11.Bd4 =+.

9.Ba1 c6 10.Qb3 Ne4 11.Nc3 (11.Be5 Nd7=+) 11...Bf6 (11...Nd7 12.d4=+) 12.d4= Qa5 13.Bb2 dc4 14.Bc4+= cb5 15.Bb5 Nd6 16.Be2 Nc6 17.0–0 Qc7 18.Ra1 Bd7 19.Qd1 Rb8 20.Rc1 b5 21.d5 Bc3 22.Rc3 ed5 23.Qd5 Nc4 24.Rb3 Nb2 25.Rb2 Be6 26.Qc5 Qa7 27.Rb5+= Qa1 28.Bf1 Rc8 29.Nd2 Na7 30.Rb1 Qa2 31.Qd4 Nc6 32.Qb2 Qd5 33.Bc4 Qd6 34.Be6 fe6 35.Qc2 Ne7 36.Qb2 Rd8 37.Nf1 Nf5 38.Qb6+/– Qd5?? 39.Qb3 Qd6+/– 40.g3 Nh6 41.h3 Nf7 42.Qb6 Qd5 43.Qb7 Qd3 (43...Qf5 44.Kg2+=) ½–½. Holz auf der Heide,Gerhard – Hillmann,Ralf, Leipzig VfB op 4th, 1997.

9.Ba1 c6 10.Be5 Nbd7 =.

9.Ba1 Bd6 10.Be5 =+.

9.Ba1 Nbd7 10.Qc2 c5 11.bc6 bc6 12.Be2 =.

9.Ba1 Nbd7 10.Qc2 Bd6 11.d4 dc4 12.Bc4 Nb6 13.Be2 Nfd5 14.Nbd2 Bd7 15.0–0 Qe8 16.Qb3 f5 17.Ne5 Bb4 18.Nd7 Qd7 19.Nf3 Ra8 20.Ne5 Qe8 21.Qc2 Bd6 22.Rc1 Nb4 23.Qb1 N4d5 24.g3 Nd7 25.Bb2 N7f6 26.Qd3 Ne4 27.f3 Ng5 28.h4 Nf7 29.e4 fe4 30.fe4 Nb6 31.Bh5 Be5= 32.de5 Na4 33.Bd4+= Qd7 34.Qc4 Nb6 35.Bf7 Qf7 36.Bb6 cb6+/– 37.Qc8 Rc8 38.Rc8 Qf8 39.Rf8 Kf8 40.Kf2 (40.g4 Kf7+/–) ½–½. Sternik,Ryszard – Felkel,Siegfried, TT–19 ETC, 2005.

9.Ba1 Nbd7 10.d4 =.

6.Nf3 ab5

7.ab5 Ra1 8.Ba1 Nbd7 9.c4 dc4 10.Bc4 Nb6 11.Be2 Bd7 12.Nc3 0–0 13.0–0 Qa8 14.Qc2 Rd8 15.Bb2 Be8 16.Ra1 Qc8 17.e4 c5 18.bc6 Bc6 19.Rc1 Qd7 20.d4 Rc8 21.Qd3 Bb4 22.Ne5 Qd8 23.Nc6 Rc6 24.Na2 Rc1 25.Bc1 Be7 26.Nc3 Qa8 27.Qb1 Qa5 28.Bd2 Bb4 29.Qc1 h6 30.f3 Na4 31.Nb1 Bd2 32.Nd2 Qb6 33.Qc8 Kh7 34.Qc4 Qa5 35.Qc2 g6 36.Kf1 Nc3 37.Nb3 Qb4 38.Bd3 Nd7 39.h4 h5 40.g4 hg4 41.fg4 Nb5 42.Bb5 Qb5 43.Kf2 Nf6 44.Nd2 Ng4 45.Kf3 Nf6 46.e5 Qd5 47.Ke3 Ng4 48.Kf4 Qd4 49.Ne4 Ne5 50.Qc7 Nd3 51.Kf3 Ne1 52.Kf4 e5 53.Kg5 Qe3 54.Kf6 Qf4 55.Ke7 Qe4 56.Kf7 Qf5 57.Ke8 Kh8 58.Qc1 Qe6 0–1. Behnicke – Abhau, 1995.

7.Bb5 Bd7 8.0–0 0–0 9.Nc3 Nc6 10.Qe2 Nb4=+ 11.Bd7 Qd7 12.Ne5 Qd8 13.d3 c6 14.Rfb1 Qc7 15.f4. pcmvr (2760) – grotesmurf (2275), net–chess.com, 2006.

6.Nf3 c5

7.c4 0–0 8.Bd3 =+.

7.c4 Nbd7 8.Be2 0–0 9.0–0 b6 10.d4 Bb7 11.Nbd2 dc4 12.Nc4 ab5 13.ab5 Qc7 14.Qc2 Rfc8 15.dc5 Bc5 16.Nce5 h6 17.Nd7 Nd7 18.Rfd1 Bd5 19.h3 Qb7 20.Ra8 ½–½. Orlik,Adam – Gaida,Henryk, Czerniak mem11 corr9193, 1991.

7.bc6 Nc6 8.Be2 Bd7 9.0–0 Qb6 10.Ba3 Ba3 11.Ra3 Rc8 12.c3 0–0 13.Rb3 Qc7 14.d4 Na5 15.Rb2 Ne4 16.Rc2?? (better is 16.Ne5+=) 16...Ba4–+ 17.Bd3 Bc2 18.Qc2 Rfe8 (better is 18...f5!? 19.Rc1–+) 19.Be4 de4 20.Qe4 h6 21.Rc1 Nc4 22.Nfd2 b5 23.Qd3 e5 24.Nc4 Qc4 25.Qc4 Rc4 26.g3? (26.Nd2 Rc7 27.Kf1–+) 26...b4 27.Kg2 ed4 28.ed4 Rec8 29.Kf3 bc3 30.Ke4 c2 31.Nd2 Rb4 (better is 31...f5!? 32.Kd5 Rb4 33.Ke5–+) 32.Kd3 a5 33.Rc2 Rc2 34.Kc2 Rd4 35.Nb3 Rd5 36.Kc3 Re5 37.Kd3 (37.Nd4 a4–+) 37...a4 38.Nc1 a3 39.Kc3 Re1 40.Na2 Re2 (40...Re2 41.Kb3 Rf2 42.Ka3 Rh2–+) 0–1. Valpa – Schnitzly, playchess.de, 2005.

7.Be2 0–0 =.

7.Be2 c4 8.0–0 ab5 9.ab5 Ra1 10.Ba1 Nbd7 11.d3 cd3 12.cd3 Qb6 13.Qc2 Qc5 14.Rc1 Qc2 15.Rc2 0–0 16.Nbd2 Bd6 17.h3 Nb6 18.Be5 Be5+= 19.Ne5 Bd7 20.Rc7 Bc8 21.d4 Nfd7 22.Nd7+/– Nd7 23.Kh2 Re8 24.Kg3 Kf8 25.e4 Ke7 26.e5 Kd8 27.Rc2 b6 28.Bd3 Bb7 29.Bh7 g6 30.Nf3 Rh8 31.Ng5 Ke7 32.Rc7 Bc8 33.h4 f6 34.ef6 Kf6 35.Kh3 Kg7 36.g4 Kf6 37.f4 Re8 38.h5 gh5 39.gh5 (39...e5 40.Bg6+–) 1–0. Eralos (2130) – Dios666 (1870), Buho21.com, 2006.

7.Be2 c4 8.d3 Bb4 9.Bc3 cd3 10.cd3 Bd6 =.

5.ba6 Na6

6.a3 Nc5 7.Nf3 Bd6 8.Be2 b6 9.c4 0–0 10.Nc3 Bb7 11.Nb5 Be7 12.a4 (12.Bf6 Bf6 13.d4 c6=+) 12...dc4–/+ 13.Bc4 Bd5 14.Bf1 Bb3 (15.Qb1 Ba4–/+ (15...Na4?! 16.Be5 Nc5 17.Ra8 Qa8 18.Nfd4–/+)) 0–1. Waibel,Ulrich (1650) – Brueske,Thomas (2195), remoteschach.de, 2005.

6.Nf3 Nc5 7.Be2 (7.Ne5 Bd6+=) 7...Bd6 8.0–0 0–0 9.d3 (9.Be5 b6+=) 9...Re8= 10.Be5 Be5 11.Ne5 Nfd7 12.f4 Ne5 13.fe5 Qg5 14.Rf3 Bd7 (worse is 14...Qe5 15.d4 Qd6 16.dc5 Qc5 17.Nd2+=) 15.Rg3 Qf5 (15...Qe7 16.Nc3=) 16.Nd2 (16.d4 Ne4 17.Rf3 Qg5=) 16...Na4 (worse is 16...Qe5 17.d4 Qd6 18.dc5 Qc5 19.c4+/–) 17.Nf3 Nc3 18.Qe1 Ne2 (18...Na2?? 19.Rg5 Ra4 20.Rf5 ef5 21.Bd1+–) 19.Qe2 h6 20.Qd2 c5 21.Rf1 (21.c3 Ra4=) 21...Qh7 (21...Ra2 22.Ng5 hg5 23.Rf5 ef5 24.Qc3+=) 22.Qc3 Rec8 Black plans c4 (22...c4 23.dc4 Rec8 24.Qb4+=) 23.a3 c4 24.d4 Rc6 (24...Ra4 25.Nd2=) 25.Nd2 Rca6 Exerts pressure on the isolated pawn (25...b5 26.e4 Rca6 27.Qf3+=) 26.Nb1 (26.e4 b5=) 26...Ba4 27.Rc1 Ra5 28.Qd2 (28.Nd2 Bc6 29.Nb1 Qe4+=) 28…Rb5 (28...Rb5 29.e4 Rb2+= (worse is 29...Qe4 30.Nc3 Qh4 31.Nb5 Bb5 32.Rb1+/–); 28...R5a7 29.Qf2+=). Zmolil,Josef (1700) – Milde,Lars (1890), TT–12.53 ETC, 2004.

6.Nf3 Be7 7.Nc3 0–0 8.Bd3 Nc5 9.0–0 Nd3 10.cd3 c5 11.d4 c4 12.a4 Bd7 13.Ne5 Bd6 14.Nd7 (14.Ba3 Ba3 15.Ra3 Qe7=) 14...Qd7 15.Nb5 Ne4?? (15...Rfc8 16.d3–/+) 16.Nd6?? (better is 16.f3 Nf6 17.Nd6 Qd6 18.Ba3+/–) 16...Nd6=+ (< 16...Qd6 17.Ba3 Qd7 18.Bf8 Kf8 19.Qc2+/–) 17.Ba3 (17.a5 Ra6=+) 17...Rfd8 (17...Ra4!? 18.Qa4 Qa4 19.Bd6 Qc2 20.Bf8 Kf8–/+) 18.Bd6=+ Qd6 19.d3 c3 20.Qb3 Qc6 21.Rfc1 Rdc8 22.Qc2 Rc7 23.Ra3 Rac8 24.Kf1 (24.Ra2 Qd6=) 24...b5 (better is 24...Qd6 25.Rb3 Qh2–/+) 25.ab5= Qb5 26.Rb3 Qc6 27.f3 h6 28.e4? (better is 28.Rcb1!?=) 28...de4–/+ 29.de4 Qc4 30.Ke1 Qd4 31.Kf1 Qd2 (31...Qc4 32.Kg1–/+) 32.Qd1? (better is 32.Qd2 cd2 33.Rd1=+) 32...Qd1–+ 33.Rd1 c2 34.Rc1 Kf8 35.Ke2 Ke7 (35...e5 36.Rb2 Rc6 37.Rb5–/+) 36.Rd3 (36.Kd2!? f5 37.ef5=+) 36...g5 37.Ke3 f5 38.ef5 ef5 39.Kf2 Rc3?? (better is 39...Ke6–+) 40.Rc3=+ Rc3 41.Ke2 Ke6 42.Kd2 Rc4 43.Rc2 Rc2 44.Kc2 Ke5 45.Kd3 Kf4 46.Kd4 g4 47.fg4 Kg4 48.Ke5 f4 49.Ke4 h5 50.g3?? (better is 50.Ke5=) 50...fg3–+ 51.hg3 Kg3 52.Ke3 h4 53.Ke2 Kg2 0–1. Pieleck,Rudi – Staats,Carsten, RSX9E – A00 – Sokolsky–1, 2002.

6.f4 c5 7.Nf3 Qb6 8.Qc1 (8.Bf6 gf6 9.Nc3 c4 10.Rb1 Qc7 11.Nd4 Bb4 12.Ndb5 Qa5 13.Be2 Bd7+=; 8.Be5 Be7 (8...Ng4 9.Bc3 f6 10.a4 Bd7 11.a5 Qa7 12.Bd3 c4 13.Be2 Bc5=; 8...Nd7 9.Bc3 f6 10.Be2 Bd6 11.0–0 0–0 12.a4 e5 13.fe5 fe5+=; 8...Bd7 9.Bf6 gf6 10.Nc3 c4 11.e4 d4 12.Ne2 Bc5 13.Rb1 Qa7+=) 9.Nc3 0–0 10.Rb1 Nb4 11.Rb3 c4 12.Rb2 Nd7 13.Bd4 Qa6+=) 8...Bd6 (8...Be7 9.Nc3 0–0 10.Be2 Nc7 11.0–0 d4 12.Nd1 Rd8 13.Ne5 Bd7+=; 8...c4 9.Be2 Be7 10.0–0 0–0 11.Bd4 Qa5 12.Ne5 Bc5 13.d3 b5=; 8...Nb4 9.a3 Nc6 10.Bf6 gf6 11.c4 d4 12.Be2 f5 13.ed4 cd4+=) 9.Be2 (9.Bf6 gf6 10.Nc3 c4 11.Rb1 Qa5 12.Rb5 Qd8 13.Be2 Rg8=) 9...0–0 (9...Be7 10.0–0 0–0 11.Ne5 Rd8 12.Nc3 d4 13.Nc4 Qc6=) 10.0–0 (10.Bf6 gf6 11.Nc3 c4 12.Rb1 Qa5 13.Rb5 Qc7=) 10...Re8 (10...c4 11.Bd4 Bc5 12.Bf6 gf6 13.Nc3 Bb4=) 11.c4 (11.Bf6 gf6 12.Nc3 c4 13.Rb1 Qa5=) 11...Nb4 (11...d4 12.ed4 Bf4 13.Ne5 Bh6=) 12.a3 (12.Bf6 gf6 13.Nc3 d4+=) 12...Nc6 13.Bf6 gf6 14.cd5 ed5 15.Nc3 d4 16.Rb1 Qa5 17.Nd5 Kg7 18.Nb6 Rb8 19.Rb5 Qa7 20.Bd3 de3 21.de3 (21.Nc8 Rbc8 22.de3 Bf4 23.ef4 c4 24.Kh1 cd3=) 21...c4 22.Bc4 (22.Nc8?! Rec8 23.Nh4 Ne7 24.Nf5 Nf5 25.Bf5 Rc5 26.Rc5 Qc5+=) 22...Qa3 23.Qa3 Ba3 24.Kf2 Be6 25.Rfb1 Bc8 26.Rd1 Be7 27.Nd4 Bg4 28.Be2 Nd4 29.Rd4 Be2 30.Ke2 Bd8 31.Nd7 Ra8 32.Rb7 Ra2 33.Kf3 Kh8 34.Rb8 Rg8 35.Nc5 Be7 36.Rg8 Kg8 37.Ne4 f5 38.Ng3 Ra5 39.Rd7 Bh4 40.Nh5 Kf8 41.Rb7 Be1 42.Rb1 Bd2 43.Rb3 Be1 44.Ke2 Bh4? 45.Rb8 Ke7 46.g3 Ra2 47.Kf3 Rh2 48.gh4 Rh4 49.Ng3 Ke6 50.Rb6 Kd5 51.Nf5 Rh1 52.Rh6 Ra1 53.Rh7 f6 54.e4 Ke6 55.Re7 1–0. Siembab,Bartosz – Khamidov,Komil, Rubinstein Polanica Zdroj Poland, 2010.

6.f4 Bc5 7.Nf3 0–0 8.Be2 Ne4 (8...Nb4 9.Nc3=+) 9.0–0 Nb4 10.d4 (better is 10.a3 Nc6 11.Ne5=+) 10...Bd7?? (better is 10...Qf6–/+) 11.dc5+– f6 12.Ba3 Ra3? 13.Na3 Qe7 14.Bb5 c6 15.Qd4 Nc2 16.Nc2 cb5 17.Nb4 Rc8 18.Rfc1 Rc5 19.Nd2 Rc1 20.Rc1 Nd2 21.Qd2 Qd6 22.e4 d4 23.Nd3 Bc6 24.e5 Qc7 25.Qf2 Qd8 26.ef6 gf6 27.Rd1 Qd6 28.Ne1 Qa3 29.Rd4 Qc3 30.Rd3 Qb4 31.Qh4 Qc5 32.Kh1 Qf5 33.Rg3 Kf7 34.Qh6 e5 35.Qg7 (35...Ke6 36.Qg8 Kd6 37.Rd3 Ke7 38.Qd8 Kf7 39.Qc7 Kf8 40.Rd8 Be8 41.Qb8+–) 1–0. Conde,Jose A – Hohlstein,Walter, TT–07, 2003.

6.f4 Bd6 7.Nc3 e5 8.fe5 Be5 9.Nf3 Bg4 10.Be2 Bf3 11.Bf3 c6 12.0–0 0–0 13.d4 (13.Rb1!?+=) 13...Bd6–/+ 14.Re1 Re8 15.g3 Bb4 16.Qd3 Nc7 17.Re2 Bc3 18.Bc3 Ra3 19.Qd2 Qa8 20.Bb4 Ra2 21.Ra2 Qa2 22.Kg2 Ne4 23.Qd3 Qb1 24.Qb3 Qb3 25.cb3 Ra8 26.h4 f6 27.Bg4 Kf7 28.Bh5 g6 29.Bf3 h5 30.g4 hg4 (30...hg4 31.Bg4 Rh8–+) 0–1. marekt – Barnaby_Rudge, ChessWorld.net, 2012.

6.Nf3 Bd6

7.Nc3 0–0 8.Bd3 c5 9.Nb5 Bb8 10.c4 Nb4 11.Qb3 Nd3 12.Qd3 Bd7 13.0–0 Bb5 14.cb5 c4 15.Qc3 Qd6 16.a4 b6 (16...Rc8 17.g3+=) 17.g4?? (17.Ba3 Qd8 18.Bf8 Qf8+/–) 17...Ra7 (better is 17...Qd7!?+=) 18.g5+/– Nh5 19.h4?? (better is 19.Ba3!? Qd7 20.Bf8+/–) 19...f6 (better is 19...Qd7 20.Qd4 f6+=) 20.Kh1?? (better is 20.Ba3 Qd7 21.Bf8+=) 20...fg5–+ 21.Ne5? (better is 21.Ba3 Qd8 22.Bf8 Qf8 23.Nd4–+ (23.Ng5?? h6 24.Qd4 hg5–+)) 21...gh4 22.f4 Ng3 23.Kg2 Nf1 24.Rf1 Rf5 (24...Ra4 25.Kh3–+) 25.Rg1 (25.Ba3 Qc7 26.Nc6–+) 25...g5 (better is 25...Qf8 26.Nc6 Rg5 27.Kh1 Rg1 28.Kg1 Rf7–+) 26.Ng4 (better is 26.Nc6 e5 27.Na7 Ba7 28.Qc2–/+) 26...gf4?? (26...Qf8 27.Qd4 Ra4 28.Qh8 Kf7 29.Qh7 Ke8=) 27.Qh8 Kf7 28.Nh6 Ke7 29.Nf5 ef5 30.Kf1 fe3 (30...c3 31.Bc3 Qg6 32.Qb8 Ra4 33.Qc7 Ke8 34.Rg6 hg6+–) 31.Qh7 1–0. mbarker (2410) – cristero (2460), net–chess.com, 2015.

7.d4 0–0 8.c4 b6 9.Nbd2 (9.Nc3 Bb7+=) 9...c6 (9...Bb7 10.Rc1+=) 10.Be2= Bb7 (10...Qc7 11.0–0=) 11.0–0 Re8 (11...Qc7 12.Qb3=) 12.Rb1 (12.Qb3 Qc7=) 12...h6 (12...Qc7 13.Qb3=) 13.Qb3 Re7 (13...Ra7 14.Ba3 Bc7 15.Rfc1=) 14.Ba3 (14.Bc3 Bc7+=) 14...Ba3= 15.Qa3 dc4 (15...c5 16.Qb2 cd4 17.Nd4=) 16.Rb6 (16.Nc4 Nc5 17.Qc1 Ncd7+=) 16...Nb8= 17.Qb2 c3 18.Qb3 (18.Qc3 A deflection 18...Qb6) 18...Ra7+= (worse is 18...cd2 19.Rb7 Rb7 20.Qb7+=) 19.Nc4 Nd5 20.h3 (20.a3 Rc7+=) 20...Qc7 (20...Rc7 21.Ra1–/+) 21.Rc1 (21.Ra1!?–/+) 21...Nd7–+ (21...Nb6?! 22.Nb6 Ba6 23.Nc4+=) 22.Rb7 Rb7 23.Qa3 (23.Qd1 c5–/+) 23...c5 24.e4 Ra7 25.Qb3 Nf4 (25...Qf4 26.Rc2 Nb4 27.Rc3 Na2 28.Re3–+) 26.Bf1 Nf6 (26...cd4 27.Nd4 Nc5 28.Qc3 Ra2 29.Ne3 Nh3 30.gh3=) 27.g3 (27.e5 N6d5–/+) 27...Ne4–+ 28.Qc2 f5 (28...Nf6 29.gf4 Qf4 30.Nce5 Ra2 31.Qa2 Qc1 32.Qa8 Re8 33.Qa7–+) 29.gf4–/+ Qf4 30.Bg2?? (30.dc5 Qf3 31.Nd6–+) 30...Ra2!!–+ 31.Qd1 (31.Qa2 Theme: Deflection from c1 31...Qc1) 31...Nf2 32.Qf1 Qg3 33.Nce5 Nh3 (33...Nh3 34.Kh1 Nf4–+) 0–1. Bosak,Alexandr Mikhailovich – Pawlak,W, corr Poland, 1998.

7.Be2 +=.

5.c4 ab5

6.cb5 Bd6 7.Nf3 0–0 8.Be2 Nbd7 9.0–0 c5 10.Nc3 e5 11.d3 d4 12.ed4 ed4 13.Ne4 Ne4 14.de4 Re8 15.Bd3 b6 16.Re1 Bb7 17.Qc2 h6 18.a4 Qc7 19.Rac1 Nf6 Increases the pressure on e4 (19...Rec8 20.Bc4+=) 20.h3 (20.Bd4 cd4 21.Qc7 Bc7 22.Rc7 Be4 23.Be4 Re4 24.Re4 Ne4=) 20...Re7 21.Re2 Nh5 22.Qd1 Nf4 23.Re1 Nd3 24.Qd3 Ra4 25.Nd4 Be5 26.Nf5 Re8?? (better is 26...Bb2 27.Ne7 Qe7–+) 27.Be5= Qe5 (27...Re5? 28.Qg3 g6 29.Nh6 Kf8 30.Nf7+–) 28.f3 Ra2 29.Nd6?? (29.Red1 Bc8 30.Nd6 Bh3–/+) 29...Rd8 (better is 29...Qg3 30.Re2 Re2 31.Qe2 Qd6–+) 30.Qc4 Rg2 31.Kg2 Rd6 32.Rg1?? (better is 32.Red1=) 32...Rd2–+ 33.Kf1 Qh2 34.Rg7 Kg7 35.Qc3 Kh7 36.Qe3 Qh1 37.Qg1 Qf3 (37...Qf3 38.Ke1 Qe2) 0–1. Van Esbroeck,Dirk – Hickl,Norbert, SN–2010–0–00297, 2010.

6.cd5 ed5 7.Bb5 c6 8.Be2 =+.

6.cd5 Nd5 7.Bb5 c6 (7...Bd7 8.Bc4=+) 8.Be2 b5 (8...Bd6 9.Nf3=+) 9.Nf3 (9.a4 ba4 10.Ra4 Ra4 11.Qa4 Bd6=) 9...Nf6 (9...Bd6 10.a4=) 10.0–0 (10.a4 ba4 11.Ra4 Ra4 12.Qa4 Bd6+=) 10...Be7 (10...Bd6 11.a4=) 11.Ng5 (11.a4 ba4 12.Ra4 Ra4 13.Qa4 0–0+=) 11...0–0 (11...Ra5 12.Nf3=) 12.f4 (12.Qc2!? Re8 13.Bh5=) 12...Nd5=+ 13.Ne4 f5 14.Nec3 Nc3 15.Nc3 b4 16.Nb1 c5 (16...Ba6 17.d3=) 17.Qb3 Nc6 18.Bc4 (18.a3=) 18...Bd7 (better is 18...Qd6!? 19.Qc2 Ba6=+) 19.Be6+= Be6?? (better is 19...Kh8+=) 20.Qe6+– Kh8 21.Qc6 Bd6 22.Qb5 Rb8 23.Qc4 Qh4 24.d3 Qg4 25.Nd2 Qe2 26.Qc2 Qe3 27.Kh1 Bf4 28.Nf3 Rbd8? 29.Bc1 Qd3 30.Qd3 Rd3 31.Bf4 Rfd8 32.Rac1 R8d5 33.h3 Kg8 34.Ne5 Kf8 35.Nc6 Ke8 36.Rfe1 Kd7 37.Ne5 Ke6 38.Nd3 Kf6 39.Nc5 Rc5 40.Rc5 g5 41.Be5 Ke6 42.Bg7 Kd6 43.Rce5 Kc6 (44.Rf5 g4+–). wach – WyleECoyote, Caissa.com, 2004.

6.cb5 c5

7.a4 Bd6–/+ 8.Nf3 Nbd7 (8...0–0 9.d3–/+) 9.g3 (9.Be2!?=+) 9...0–0–/+ 10.Bg2 (10.Be2 e5–/+) 10...e5 11.0–0 (11.d3 Qa5 12.Bc3 Qb6–/+) 11...Re8 (11...e4 12.Ng5–+) 12.d4 (12.d3 Qa5–/+) 12...cd4 (12...e4 13.Nfd2 c4 14.f3 ef3 15.Qf3–/+) 13.ed4 (13.Ba3 Ba3 14.Ra3 de3 15.fe3 Qa5–/+) 13...e4 14.Nfd2 Nf8 (14...Qa5 15.Re1–/+) 15.Na3 (15.Re1 Ne6–/+) 15...h5 (15...Qa5 16.Re1–/+) 16.Nc2 (16.Rc1 Qa5–/+) 16...N8h7 (16...Bg4 17.f3 Bd7 18.fe4 de4 19.Qe2=) 17.Ne3 Ng5 (17...Bg4 18.Ng4 hg4 19.Qe2=+) 18.Qb3 (18.Rc1 Qa5=+) 18...Bb8 (18...Nh3 19.Kh1 Be6 20.Ba3=+) 19.Rfc1 (19.Rac1 h4=+) 19...Bh3 (19...Nh3 20.Kf1=+) 20.Bh1 (20.Ba3 Bg2 21.Kg2 Qa5=) 20...Be6 21.Ba3 Ng4 22.Bg2 Qf6 23.Ng4 hg4 24.Bc5 Nf3 25.Nf3 gf3 26.Bf1 g5 27.b6 Kg7 28.Qd1 Rh8 29.h3?? (better is 29.Qd2=). Montoliu Daroca,Inma – Becerra Rivero,Julio (2510), Open Balaguer Open, 1997.

7.bc6!? Nc6 8.Bb5 =+.

7.bc6 Nc6 8.Nf3 Bd6 =+.

7.Nf3 Bd6 8.Be2 =+.

7.Nf3 Nbd7 8.a4 Bd6 9.d3 0–0 10.Nbd2 e5 11.Qc2 Qe7 12.e4 b6 13.Be2 Bb7 14.0–0 Rfd8 15.Rfe1 Nf8 16.Bf1 Ng6 17.g3 Rac8 18.Bg2 c4 19.ed5 c3 20.Bc3 Nd5 21.Nc4 Nc3 22.Qc3 Bb4 23.Qb3 Be1 24.Re1 Bd5 25.Nfd2 Bg2 26.Kg2 h6 27.Nf3 Qb7 28.a5 ba5 29.Na5 Qd5 30.Qb4 Rb8 31.Nc6 Qc6 0–1. Tendulkar – Morozevich,A (?), ICC blitz, 1999.

7.Nf3 Be7 8.Bd3 c4 9.Bc2 =+.

7.Nf3 Be7 8.Bd3 Nbd7 9.0–0 Qc7 (9...0–0 10.Qc2=+) 10.h3 (10.Qc2 e5 11.e4 de4 12.Be4 Ne4 13.Qe4 f6=+) 10...e5 11.Bc2 (11.Be2 e4 12.Ne1 c4=+) 11...e4 (11...0–0 12.d3=+) 12.Nh2 (12.Ne1 0–0=+) 12...Ne5 (12...Bd6 13.f4–/+) 13.f4 (13.d3!?=+) 13...Nc4–/+ 14.Bc1 (14.Bc3 Qd7–/+) 14...Nd6 (14...Bd7 15.d3 ed3 16.Bd3–/+) 15.Qe2 (15.Na3 Qb6–/+) 15...d4–+ (Black gets in control) 16.d3 (better is 16.ed4 cd4 17.d3–+) 16...c4 (16...Nb5?! 17.de4 c4 18.ed4 Nd4 19.Qd1–/+) 17.de4 d3 (17...Nb5?! 18.ed4 Nd4 19.Qd1–/+) 18.Bd3 cd3 19.Qd3 Nde4 20.Bb2 (20.Ba3 Ba3 21.Na3 0–0–+) 20...Be6 21.a4 Rd8 22.Bd4 Rc8 23.Nd2 Ng3 24.Rfc1? Qc1 25.Rc1 Rc1 26.Kf2 Nh1 27.Kf3 0–0 28.Nhf1? Rd8 29.Qe2 Rc2 30.Bf6 gf6 31.g4 Bb4 32.Qd1 Bd5 33.e4 Be4! 34.Ke4 Nf2 (35.Kf3 Nd1–+) 0–1. Oldernes,Lars Arne (1810) – Esbensen,Andreas d.y. (1935), Klubbmesterskap VSK, 2005.

7.Nf3 Be7 8.Be2 0–0 9.0–0 Nbd7 10.Nc3 (10.Qc2 Bd6=+) 10...c4 (10...e5 11.d4 ed4 12.ed4=+) 11.d3= cd3 12.Bd3 Ba3 (12...Nc5 13.Bc2=) 13.Ba3 Ra3 14.Nb1 Ra8 15.Qc2 b6 (15...e5 16.Be2=) 16.Rc1 Nc5 17.Nbd2 Bb7 18.Ne5 (18.Nb3 Nb3 19.Qb3 Qd6=) 18...Qd6 (Black gets strong initiative) 19.f4 (19.Ndf3 Rfc8=) 19...Rfc8=+ 20.Nb3 Nb3 21.Qb3 d4 22.Rc8 Rc8 (22...Bc8?! 23.Rd1=) 23.Rd1 (23.Bc4 de3 24.Qe3 Ng4 25.Ng4 Rc4–/+) 23...Qc5 24.Qc4 (24.Qb2 de3 25.Qe2 Nd5 26.Bh7 Kh8 27.Nf7 Kh7 28.Ng5 Kg8 29.Ne6 Qe7–+) 24...de3 25.Qc5 Rc5 26.g3 Rc3 27.Nc4 Bf3 28.Be2 h6 29.Bf3 Rc4 30.Be2 Ra4 31.Ra1 (31.Rd8 Kh7 32.Rf8 Ra7–/+) 31...Nd5 32.Bd3 (32.Kf1 g5 33.fg5 hg5–+) 32...Rd4 33.Bc2 Nb4 (34.Bd1 Rd2–+) 0–1. Andersson,Lars H – Lindstroem,Bo, corr SSKK, 1991.

7.f4 Bd7 8.a4 Qa5 9.Nf3 Bd6 10.Be2 0–0 11.0–0 c4 12.Ne5 Be8 13.Qe1 Nbd7 14.Bc3 Qc7 15.Qg3 Ne5 16.fe5 Ne4 17.Qf4 Nc3 18.Nc3 Be5 19.Qf2 Bh2 20.Kh1 Be5 21.Bg4 Bc3 22.dc3 Qe5 23.Rfc1 f5 24.Be2 f4 25.ef4 Rf4 26.Bf3 Bh5 27.Qb6 Bf3 28.gf3 Qh5 29.Kg2 Qf3 30.Kg1 Rg4 31.Kh2 Qg3 0–1. elsh1403 (1660) – vischi, internet, 2014.

6.cb5 c6

7.a4 Bd6 8.Nf3 =+.

7.a4 Be7 8.Nf3 0–0 9.d4 Bb4 10.Bc3 Qa5 11.Qd2 Bc3 12.Qc3 Bd7 13.Qa5 Ra5 14.bc6 Bc6 15.Nc3 Nbd7 (15...Ne4!? 16.Nb5 Nd7–/+) 16.Bd3 Rfa8 17.0–0 Ba4 18.Na4 Ra4 19.Ra4 Ra4 20.Bb5 Ra7 21.Rb1 Kf8 22.Kf1 Ke7 23.h3 Ne4 24.Bd7 Kd7 25.Ne5 Ke7 26.Ke1 f6 27.Ng4 h5 28.Nh2 Kd7 29.f3 Nd6 30.g4 hg4 31.fg4 Nc4 32.Ke2?? (32.Nf1–+) 32...Ra2 33.Kf3 Nd2 (33...Nd2 34.Kg2 Nb1 35.Kg1 Nc3–+) 0–1. popovicigelu (1610) – januszpalikot, internet, 2012.

7.a4 Be7 8.f4 0–0 9.Nf3 Bd7 10.Nc3 Qe8 11.Bd3 cb5 12.ab5 Ra1 13.Qa1 Bb5?? (better is 13...Qd8=) 14.Bb5+– Qd8 15.0–0 Qb6 16.Ne5 Bb4 17.Bd3 Nc6 18.Nc6 bc6 19.Rb1 Qc7 20.Qa4 c5 21.Nb5 Qb6 22.Bf6 gf6 23.Nc3 Qc7 24.Nb5 Qd7?? (24...Qb6 25.Qd1 f5+–) 25.Qa1 Bd2 26.Qf6 Be3 27.Kh1 c4?? (27...Rd8 28.Re1 d4 29.Qg5 Kf8 30.Qc5 Qe7 31.Qe5+–) 28.Bc2 (28.Qg5! Kh8 29.Qh6 Qb5 30.Qf8) 28...Qd8?? (better is 28...Rb8 29.Qg5 Kf8+/–) 29.Qd8 Rd8+= 30.Nc3? (better is 30.g3!?+=) 30...Bf4–+ 31.g3 Bh6 32.Ne2 (32.Rb7!?–/+) 32...d4–+ 33.Nf4 (33.Bd1 Bd2–+) 33...d3 34.Bd1 c3 35.Rb7 (35.Rc1 c2 36.Bc2–+) 35...c2 36.Bc2 dc2 37.Kg2 (37.Rc7 Rd1 38.Kg2–+) 37...Bf4 38.gf4 c1Q 0–1. jura1946 – mtm12, internet, 2012.

7.Nf3 Bd6 =+.

7.a4 cb5

8.ab5 Ra1

9.Ba1 Qa5 10.Nc3 Bd7 11.Nf3 Bb4 12.Qb1 0–0 13.Be2 Ne4 14.0–0 Bc3 15.dc3 Nc3 16.Bc3 Qc3 17.Rc1 Qa3 18.h4 h6 19.Ne5 Qd6 20.f4 f6 21.Ng6 Rf7 22.h5 d4 23.Qd3 e5 24.Bd1 Be6 25.Bb3 Bb3 26.Qb3 d3 27.Kf2 Nd7 28.Rc8 Kh7 29.Rd8 d2 30.Ke2 ef4 31.Nf4 Qe7 32.Qc2 f5 33.Rb8 Ne5 34.Nd5 Qg5 35.Qd2 Qg2 36.Kd1 Qf1 37.Qe1 Qb5 38.Nf6 gf6 39.Qg3 Qd3 40.Ke1 1–0. elsh1403 – firaga, internet, 2013.

9.Ba1 b6 10.Nf3 Nbd7 11.Be2 Bd6 12.0–0 0–0 13.d4 Ne4 14.Nbd2 f5 15.Ne4 fe4 16.Ne5 Ne5 17.de5 Bc5 18.Qb3 Bd7 19.Bb2 Qc7 20.Kh1 Ra8 21.h3 Qd8 22.f3 ef3 23.Bf3 Qe8 24.Be2 Ra5 25.e4 Bb5 26.Bb5 Rb5 27.Qa2 Ra5 28.Qb3 de4 29.h4 e3 30.Qd3 Ra8 31.Qe4 Rd8 32.Qf4 Qe7 33.Bc1 Rf8 34.Be3 Rf4 35.Bf4 0–1. elsh1403 (1655) – redbolek (1645), internet, 2014.

9.Ba1 Qb6 10.Nc3 Bb4 11.Nf3 Bc3 12.Bc3 Bd7 Exerts pressure on the isolated pawn 13.Bf6 gf6 14.Qb3 0–0 15.Qb2 Kg7 16.Be2 Nc6 17.0–0 Na5 18.Rb1 Rc8 19.h3 Nc4 20.Bc4 Rc4 21.d3 Rc5 Increasing the pressure on the isolated pawn on b5 22.Nd4 (better is 22.Qb4!?=) 22...e5–/+ 23.Nf3?? (better is 23.Nb3 Rb5 24.Qc2–/+) 23…Rb5–+ (23...Rb5 24.Qb5 Bb5–+ (24...Qb5?! 25.Rb5 Bb5 26.d4–/+); 23...Bb5? 24.d4 Rc7 25.de5+–; 23...Qb5?! 24.Qa1 Qd3 25.Rb7+=) 0–1. popovicigelu – biged, internet, 2012.

9.Ba1 Bd7 10.Qb3 Be7 11.Nf3 0–0 12.Be2 Qb6 Exerts pressure on the isolated pawn 13.Bd4 Bc5 14.Bc5 Qc5 15.0–0 Rc8 16.d4 Qb6 17.Nbd2 Be8 18.Ne5 Nbd7 19.f4 Qa5 20.Qb2 Nb6 21.Rc1 (21.Rb1!?+=) 21...Rc1 (better is 21...Na4!? 22.Ra1 Nb2 23.Ra5 Rc2–/+) 22.Qc1+= Bb5 23.Bb5 Qb5 24.Qb1?? (better is 24.Qc7!? Nbd7 25.Qd8 Nf8 26.Qe7=) 24...Qa6 25.Kf2 g6 26.Qb4 Qa4?? (better is 26...Nbd7–/+) 27.Qe7 Qe8 28.Qf6 Nd7 29.Nd7 Qd7 30.g4 b5 31.Nb3 Qc8 32.Nc5 b4 33.Qe7 Qb8 34.Nb3 Qb5 35.Qc5 Qa4 36.Qc2 Qa3 37.Kf3 Kg7 38.h4 h6 39.g5 hg5 40.hg5 Qa4 41.Nc5?? Qb5 42.Qh2 b3? 43.Qb2 Qf1= 44.Kg3 Qe1 45.Kg2+/– Qe3 46.Nb3 Qf4 47.Qf2 Qg5+= 48.Kf1 Qg4 49.Nd2 Qd1 50.Qe1?? Qc2?? 51.Qe5 Kh7 52.Nf3 Qd1 53.Kf2 Qd2?? 54.Kg3 Qd1 55.Ng5 (55.Ng5 Kg8 56.Qe3=) 1–0. popovicigelu – amazy, internet, 2012.

9.Ba1 Bd7 10.Nf3 Be7 11.Be2 Qa5 Attacking the isolated pawn on b5 12.Bc3 Qb6 13.0–0 0–0 (13...Bb5? 14.Qb3+–) 14.Ne5 Bc8 (14...Bb5? 15.Qb3+–) 15.Qb3 Nbd7 16.Bd4 Bc5 17.Nd7 Nd7 18.Bb2 e5 (better is 18...d4!?=) 19.Qd5+/– Bd6 20.Rc1 Nf6 21.Qb3 Be6 22.Bc4 Bc4 23.Qc4 h6 24.Nc3 Rd8 25.Nd5 (better is 25.f4!? ef4 26.Na4+/–) 25...Nd5= 26.Qd5 Be7 (26...Bb8!? 27.Qc4 Rd2=) 27.Qb3 Rd2 28.Be5 Bf6 29.Bc7 Qa7 30.b6 Qa5 31.g3 (31.Qc4 Qf5 32.Bg3 Bd8+/–) 31...Qf5 32.Rf1 h5 33.Qc4 h4 34.Qf4 Qd5 (better is 34...Qf4!? 35.Bf4 h3+=) 35.e4 Qd4 36.e5 (36.Qg4 Qd7 37.Qd7 Rd7+–) 36...Qf4+= 37.gf4 Be7 38.Kg2 Bc5 39.Kf3 Rb2 40.Kg4 Bf2 41.Kf5 (41.Rd1!? Bb6 42.Bb6 Rb6 43.Rd8 Kh7 44.Kh4+=) 41...Bb6= 42.Bd6 (42.Bb6 Rb6 43.Kg4 Rb2+=) 42...Rh2+= 43.Rb1 Be3 44.Rb7 (44.Ke4!? Bf2 45.Rb7+=) 44...Rf2–/+ 45.e6 fe6 46.Kg6?? (better is 46.Ke4 Bc1 47.Rb8 Kh7 48.Rb5–+) 46...Rg2–+ 47.Kh5 (47.Kh5 h3 48.f5 ef5 49.Kh4–+). lllllll21 – contele2100 (1630), internet, 2012.

7.a4 Bd7

8.Qb3 cb5 9.ab5 Ra1 10.Ba1 Ne4 11.Nc3 Nc5 12.Qb1 Qa5 13.Nf3 Be7 (13...Bd6 14.Be2=) 14.Be2 (14.Nd5 ed5 15.Bg7 Rf8+=) 14...0–0= 15.0–0 b6 (15...Rc8 16.Rc1=) 16.d4+= Na4 17.Na4 Qa4 18.Ne5 Rc8 19.Bd3 g6 20.Nd7 Nd7 21.e4 (21.Rc1 Rc1 22.Qc1 Bd6+=) 21...de4= 22.Be4 Bf6 23.Qd3 Rd8 (23...Rc4 24.Re1=+) 24.Bc6 (24.Rd1!?=) 24...Nc5=+ 25.Qg3 (25.dc5 Rd3) 25...Nb3 (< 25...Bd4 26.Qc7 Rf8 27.Bd4 Qd4 28.Qb6+=) 26.Bc3 Nd4 27.Qe3 Qc2 28.Bd4 Rd4 29.g3 Kg7 30.Kg2 Rd2 31.Be4 Qb2 32.Bc6 Bd4–/+ 33.Qf3 f5 34.h4 Re2 35.Qf4 e5 36.Qg5? Rf2–+ 37.Rf2 Qf2 38.Kh3 Bc5 39.h5 Qf1 40.Bg2 Qc4 41.Kh2?! Qe2 42.g4 fg4 –+. Imhof,A – Mayr,B, Lienz op, 1988.

8.Qb3 cb5 9.Bb5 Bc6 10.Nf3= Bb5 (10...Bd6 11.0–0=) 11.Qb5 Qd7 12.Nc3 (12.Bf6 gf6 13.Nc3 Qb5 14.Nb5 Kd7=) 12...Nc6 13.0–0 Be7 (13...Bd6 14.Rfc1=) 14.Rfb1 (14.Rfc1 Ra5 15.Qb6 0–0=) 14...0–0 15.Ne2 (15.Ba3 Ra7=) 15...Ra5 16.Qb3 Rfa8 (16...Ne4 17.Ba3 Ba3 18.Ra3=+) 17.Bc3 R5a7 18.d3 Ne8 19.Nfd4 Nd4 20.Bd4 Ra4 21.Ra4 Ra4 22.Qb7 Qb7 23.Rb7 Rb4 24.Rb4 Bb4 25.Bb6 (25.e4 Nc7=) 25...Nf6 26.Bd8 (26.f4 Kf8=) 26...Nd7 27.Nc1 (27.e4 Ne5 28.ed5 Nd3 29.de6 fe6=) 27...Ne5 28.d4 Nc4=+ 29.Nb3 Kf8 30.Kf1 Nd2 31.Nd2= Bd2 32.Ke2 Bb4 33.Kd3 Ke8 34.Bb6 Be1 35.f3 h5 36.Bc5 f5 37.Bd6 g6 38.e4 fe4 39.fe4 de4 40.Ke4+= Kf7 41.Be5 Ba5 42.g3 Bd2 43.Kd3 Ba5 44.Bf4 Bb4 45.Ke4 Ba5 46.h3 Bd8 47.h4 Ba5 48.Be5 Bd8 49.Kf4 Be7 50.Bc7 Bb4 51.Kg5 (51.g4 Bd2 52.Kg3 Be1 53.Kh3 Ke7=) ½–½. Zylla,Johannes – Heuer, BS–MK Kreisliga, 1993.

8.Qb3 cb5 9.Bb5 Ne4 10.Nf3 =+.

8.Qb3 c5 9.d3 =+.

8.Qb3 Bd6 9.bc6 Nc6 10.Qb7 –+.

8.Nf3 Bd6 =.

6.cb5 Bd7

7.a4 c6 8.Nc3 Bb4 9.Nf3 Bc3 (9...0–0 10.Be2=) 10.Bc3 cb5 (10...0–0 11.Bd3=) 11.ab5+= Ra1 12.Qa1 0–0 13.Ne5 Qb6 The isolani on b5 becomes a target 14.Nd7 Nbd7 15.Be2 Re8 16.0–0 e5 Black prepares the advance d4 17.Rb1 (17.d4 e4+=) 17...Qe6 18.Qa7 b6 19.Bb4 d4 20.Bd3 (20.Rc1!?=) 20...e4+= 21.Bc2 Qc4 22.Qa4 de3 23.de3 Nd5 24.Bd6? (better is 24.Be1 Qa4 25.Ba4+=) 24...Nc5?? (better is 24...Qa4 25.Ba4 Nc3–+) 25.Qc4+– (25.Qc4 Nf6 26.Bc5+–) 1–0. elektrooon – jack1961, internet, 2013.

7.a4 c6 8.f4 cb5 9.ab5 Ra1 10.Ba1 Qa5 11.Nc3 Bb4 12.Qb1 0–0 13.Nf3 Ne4 14.Nd4 Bc3 15.dc3 Nc3 16.Bc3 Qc3 17.Kf2 Rc8 18.Bd3 g6 19.Rd1 Be8 20.Rd2 Qa5 21.Rc2 Rc2 22.Qc2 Nd7 23.Qc8 Kf8 24.Qb7 Qd2 25.Be2 Nc5 26.Qc8 Nd3 27.Kf3 Ne1 28.Kf2 Nd3 29.Kf3 Ne1 30.Kf2 e5 31.fe5 Nd3 32.Kf3 Ne5 33.Kf4 g5 34.Ke5 Qe3 35.Kd5 Kg7 36.Qf5 Qe7 37.Bd3 Bd7 38.Qh7 Kf6 39.Qh6 1–0. elsh1403 – madzialenna07 (1670), internet, 2014.

7.Nc3 Be7 8.a4 0–0 9.Nf3 c6 10.Be2 cb5 11.ab5 Ra1 12.Qa1 Qb6 13.0–0 Bd6 14.Na4 Qd8 15.Bf6 Qf6 16.Qf6 gf6 17.Nb6 Bc5 18.Nd7 Nd7 19.d4 Bd6 20.Rc1 Ra8 21.g3 Kf8 22.Bd3 h6 23.Kg2 Ke7 24.e4 Ra3 25.Bb1 Nb6 26.ed5 Nd5 27.Rc8 (better is 27.Be4!?=) 27...Rb3–/+ 28.Bc2 Rc3 (better is 28...Rb5!? 29.Be4 f5 30.Bd5 Rd5–/+ (30...ed5?! 31.Rh8+=)) 29.Rc3= Nc3 30.Bd3 b6 31.g4 Bf4 32.h4 Kd6 33.Bc4 Nd5 34.Ne1 Bd2 35.Nd3 (35.Nc2!?=) 35...Bc3+= 36.Bd5? (better is 36.Kf3!? Bd4 37.Ke4+=) 36...Kd5–+ 37.f4 Kd4 38.Nc1 Bd2?? (better is 38...Bb2 39.Ne2 Ke3–+) 39.Nb3+– Kd3 40.Nd2 Kd2 41.h5 Ke3?? (better is 41...e5 42.fe5 Ke3+–) 42.g5! (42.g5 fg5 43.fg5 hg5 44.h6+–) 1–0. druhynejhorsi (1710) – beki25 (1735), internet, 2012.

6.cb5 Nbd7

7.a4 Nc5 8.Nf3 Bd6 9.Be2 0–0 10.0–0 b6 11.d3 Bb7 12.Nbd2 Re8 13.Nd4 e5 14.Nf5 Bf8 15.Nf3 g6 16.Ng3 Bg7 (16...e4!? 17.Ne5 Bd6+=) 17.Be5+/– Re5 (better is 17...Nfe4!? 18.Bg7 Ng3 19.hg3 Kg7+/–) 18.Ne5+– Nfd7 (18...d4 19.Bf3 Nd5 20.ed4+–) 19.d4 (19.Nd7!? Qd7 20.d4 Ne4+–) 19...Ne5 20.de5 (better is 20.dc5!? bc5 21.a5+–) 20...Be5+/– 21.Rb1 (21.Ra2!?+/–) 21...f5 22.f4 Bg7 23.Bf3 Ra4 24.Ne2 Ra3 25.Qc1 Rd3 26.Nd4 (26.Rd1 Rd1 27.Qd1 Qd6+=) 26...Qe7 Attacks the backward pawn on e3 27.Re1 (27.Nc6 Bc6 28.bc6 Qe6=) 27...h5 (27...Re3 28.Nc6 Bc6 29.Qe3 Qe3 30.Re3 Bd4=) 28.Nc6 Bc6 29.bc6 Ne4 (29...Qe6 30.Rd1 Rd1 31.Qd1 Qe3 32.Kh1+=) 30.Be4 de4 (better is 30...Qe4 31.Rb6 Rc3 (31...cb6?? 32.c7+–) 32.Rb8 Kh7=) 31.Rb4?? (better is 31.Rb6! Bc3 32.Rb8 Kf7 33.Rd1+/–) 31...Qb4–+ 32.Qc2 (32.Re2 Qb3 33.Kf2 Bc3–+) 32...Qc3 (32...Qe1) 33.Rc1 b5 (33...Qc2!? 34.Rc2 Re3 35.Kf2–+) 34.Qa2 Kh7 (better is 34...Qb3 35.Qb3 Rb3–+) 35.Rc3+= Rc3 36.Qf7 (36.Qa5!? Rc6 37.Qb5 Rc1 38.Kf2–/+) 36...b4 37.Qc7?? (37.g4 hg4 38.Qe7 Rc1 39.Kf2 Rc2 40.Kg1=) 37...b3 38.Qb6 Rd3 39.c7= b2 40.c8Q Rd1 41.Kf2 (41.Kf2 b1Q 42.Qb1 Rb1 43.Qc4+=). avinoam – chesspurr, internet, 2013.

7.d4 Bb4 8.Bc3 Bd6 9.Nf3 0–0 (9...c5 10.bc6 bc6 11.Ne5=+) 10.a4 (10.Bd3 c5=) 10...c5 11.bc6 bc6 12.a5 Ba6 13.Nbd2 Bf1 14.Rf1 (14.Nf1 c5=+) 14...Qc7 (14...c5 15.Qe2=+) 15.Ke2 (15.Qe2 c5 (< 15...Bh2 16.g3+=) 16.dc5 Nc5–/+) 15...Rfb8 (15...c5 16.Qc2–/+) 16.Qa4 (16.Qc2 c5=+ (< 16...Bh2 17.g3+=)) 16...c5 (< 16...Bh2 17.g3 Ng4 18.a6=) 17.h3 (17.Rfc1 c4=+ (17...Bh2?! 18.g3=)) 17...c4 (17...Qc8 18.Rfb1–/+) 18.Rfb1 Rb1 19.Rb1 Nb8 (19...Rc8 20.Kf1=+) 20.e4 Bf4 (< 20...Ne4 21.Ne4 de4 22.Qe8 Bf8 23.Ne5+/–) 21.e5 Nfd7 22.g3 (22.Qb5 Ra7=+) 22...Bh6 (22...Bd2 23.Kd2 Nc6 24.Kd1=+) 23.Nh2 (23.Qb5 Qd8=+) 23...Bd2–/+ 24.Kd2 h6 25.f4 Ra6 (25...Nc6 26.Ra1=+) ½–½. Nebe,Lutz – Ligeti,George, internet, 1999.

7.d4 Nb6 8.Nc3 Bd7 9.a4 Bb4 10.Nge2 0–0 11.g3 (11.Ng3 Qe7+=) 11...Qe7 12.Bg2 Ra7 13.0–0 Rfa8 14.f3 c6 15.e4 de4 (15...Nc4!? 16.Qc1 c5–/+) 16.fe4+= cb5 17.ab5 Ra1 18.Ba1 Bc3 (18...e5 19.Qb1 ed4 20.Nd4 Bc5–/+) 19.Nc3= Qb4 20.e5 Nfd5 21.Ne4 Bb5 (21...Qb5?! 22.Nd6 Qb4 23.Rf7= (23.Nb7 Ne3 24.Qb1 Qd2=; 23.Nf7? Ne3 24.Qb1 Qb1 25.Rb1 Kf7–+)) 22.Qg4?? (22.Re1–/+) 22...Rf8 (better is 22...Bf1 23.Nf6 Kh8 24.Nd5 Nd5 25.Bf1 Ra1–+) 23.Nf6? (better is 23.Rd1!?–/+) 23...Kh8–+ 24.Nd5 Nd5 (24...ed5?! 25.Rd1+=) 25.Be4?? (25.Rc1 Ne3 26.Qf3–+) 25...Ne3 (better is 25...Bf1 26.Qd1 Bc4 27.Qc1–+) 26.Qh5?? (better is 26.Qh4 Nf5 27.Bf5 ef5 28.Rc1–/+) 26...g6–+ 27.Qh6 Nf1 (27...Bf1?! 28.Bc3 Qe7 29.Qe3–+) 28.Qf8 (28.Bc3 Qa3 29.Bb2 Qe3 30.Qe3 Ne3 31.Bb7–+) 28...Qf8 29.Bb7 0–1. captainevans – ddeety, internet, 2013.

7.d4 Ne4 8.Nc3 =+.

7.Nf3 Ne4 8.Qc2 Ndf6 9.d3 (9.Be2 Bd6=) 9...Bb4=+ 10.Nbd2 Nd2 11.Nd2 Bd7 12.a4 c6 13.Bf6 (13.Be2!?=+) 13...Qf6–/+ 14.Rb1 Bd2 15.Qd2 Ra4 16.Be2 0–0 17.0–0 Rfa8 18.Rb2 (18.bc6 bc6 19.Rb7 Qd8–/+) 18...Ra1 (18...c5 19.b6–+) 19.d4 Qg5 20.Qc3 Qe7 (20...cb5 21.Rc2 Rf1 22.Bf1–/+) 21.Rb3 R1a4 ½–½. Otte,Marco – Bijlmakers,Steef, Wag.Intcomp Wageningen, 2001.

7.Nf3 Bd6

8.Nc3 0–0 9.d4 e5 (9...Qe7 10.Be2 Bb4 11.0–0 Bd6 12.Re1 Ra7 13.Bd3 Rd8 14.Qc2 Ra5=; 9...Re8 10.Bd3 e5 11.de5 Ne5 12.Ne5 Be5 13.0–0 Qd6 14.h3 Qe6+=) 10.de5 Ne5 11.Be2 Nf3 12.Bf3 Be5 13.Na4 Qe8 14.Be5 Qe5 +=.

8.Nc3 0–0 9.Be2 e5 (9...Re8 10.d4 e5 11.de5 Ne5 12.0–0 Nf3 13.Bf3 c6 14.Qd3 Ng4+=; 9...Nc5 10.0–0 Bd7 11.Qc2 Ra5 12.Ng5 h6 13.d4 Na4 14.Na4 hg5+=) 10.d4 (10.0–0 e4 11.Nd4 Nc5 12.d3 Qe7 13.de4 de4 14.Qd2 Rd8+=) 10...e4 11.Nd2 Qe7 (11...Nb6 12.a4 Bb4 13.Qb3 Ba5 14.0–0 Bg4+=) 12.0–0 b6 (12...Nb6 13.a4 Bb4 14.Qb3 Bg4+=) 13.h3 (13.Qc2 Bb7 14.a4 Rfc8+=) 13...Bb7 14.a4 (14.Qb3 Rfc8+=) 14...c6 (14...Rfe8+=) 15.Qb3 cb5 (15...c5!?+=) 16.Nb5= (worse is 16.Qb5 Bb4 17.Rfc1 Ba6 18.Qa6 Ra6 19.Ba6 Ra8–/+) 16...Ba6 17.Ba3 Ba3 18.Qa3 Qa3 19.Ra3 Rac8 20.Ra2 Bb5 21.Bb5 Rc7 22.g3 Rfc8 23.Rd1 Ne8 (23...Kf8 24.Rb2=) 24.Bd7 Rd7 25.Nb1 (25.Rb1!? Rd6 26.Rab2=) 25...Rdc7 26.Na3 Nd6 27.Kg2 f5 (27...Ra7 28.Rb2+=) 28.Rdd2 (28.Rb1 Rb7=) 28...Nc4+= 29.Nb5 Nd2 30.Nc7 Rc7 31.Rd2 Kf7 32.Rb2 Rc6 33.Rb5 Ke6 34.g4 fg4 35.hg4 g5 36.Kg3 h6 37.f3 ef3 38.Kf3 Rd6 39.a5 (39.e4!?+/–) 39...ba5= 40.Ra5 Kf6 41.Ra7 Kg6 42.Re7 Kf6 43.Re5 Kg6 44.e4 de4 45.Ke4 h5 46.gh5 Kh5 47.d5 Kh4 (47...Rd8!?=) 48.Re8+/– Kg3 (better is 48...g4+/–) 49.Ke5+– Ra6 50.d6 Ra7 51.Ke6 g4 52.d7 Rd7 53.Kd7 Kf3 54.Rf8 ½–½. phildo (1860) – levigun (1670), gameknot.com, 2013.

8.Nc3 e5 9.d3 Nb6 (9...0–0 10.Be2 Qe7 11.Rc1 Rd8 12.Qc2 Qe6 13.0–0 c5 14.bc6 bc6+=; 9...c5 10.bc6 bc6 11.Be2 Qb6 12.Qc2 d4 13.ed4 ed4 14.Ne4 Ne4+=) 10.Be2 0–0 11.0–0 Re8 12.a4 Ra5 13.Nd2 Bb4 14.Qc2 Qd6 +=.

8.Nc3 e5 9.Be2 e4 (9...0–0 10.0–0 Qe7 11.Qc2 Re8 12.Nh4 Nb6 13.Nf5 Bf5 14.Qf5 Qe6+=; 9...Qe7 10.0–0 0–0 11.Qc2 Re8 12.Nh4 Nb6 13.Nf5 Bf5 14.Qf5 Qe6+=) 10.Nd4 Nc5 11.0–0 0–0 12.d3 Qe7 13.de4 de4 14.Qd2 Rd8 +=.

8.d4 c5 9.Be2 (9.dc5 Nc5 10.Be2 Na4=+) 9...cd4 (9...c4 10.0–0=+) 10.ed4 (10.Qd4 e5 11.Qd2 e4=+) 10...0–0 11.0–0 Re8 12.Re1 Qc7 13.Nc3 Ne4 (13...Nb6 14.Ne5=) 14.Rc1=+ Nc3 15.Bc3 Ra2 16.Qb3 Ra8 17.Bb4 Qb6 18.Bd3 Bf4 19.Rc2 g6 (19...Nf6 20.Bc5 Qd8 21.b6=+) 20.Qb2 Qd8 21.Bd2 Bd2 22.Nd2 Qa5 23.Rec1 Nb6 24.Bf1 (24.Qb1 Qa4 25.Nf3 e5 26.de5 Bg4=+) 24...Qa3 (24...Bd7 25.Nf3=+) 25.Qa3 Ra3 26.Rc7 (26.f4 Kg7=+) 26...Ra2 27.Nb3 h6 28.f4 Rf8 (28...Ra3 29.R1c3=+) 29.g3 g5 30.R1c3 (30.Bd3 gf4 31.gf4 Ra3=+) 30...Ra3 (30...gf4 31.gf4 Kg7 32.Nc5=+) 31.Be2 (31.fg5 hg5 32.h4 gh4 33.gh4 Ra2=+) 31...Kg7 (31...gf4 32.gf4 Kg7 33.Rg3 Kf6 34.Kf2=+) 32.Kf2 (32.fg5 hg5 33.h4 Na4=+) 32...gf4 33.gf4 Kf6 34.Rh3 Rh8 35.Rg3 Ra2 36.Nc1 Ra4 37.Bh5 (37.Nb3 Na8 38.Rc2 Rb4–/+) 37...Rh7 38.Ne2 Rc4 ½–½. Bonetti,Shane – Baer,Werner, TT–12 ETC, 2004.

8.Be2 0–0 9.0–0 c5 10.bc6 bc6 11.d4 c5 (11...Ba6 12.Nc3=+) 12.dc5= Nc5 13.a4 (13.Nc3 Ba6=+) 13...Bd7 14.Nc3 Qb8 (14...Qb6 15.Qc2=+) 15.Nb5= Bb5 16.ab5 Nfd7 (16...Ra1 17.Qa1 Nb3 18.Qa2+=) 17.Qd4+= f6 18.Ra8 Qa8 19.Ra1 Qb7 20.Qh4 Rc8 21.Nd4 (21.Qg4 Ne5 22.Ne5 Be5 23.Be5 fe5+=) 21...Ne5 22.Qh3 f5 23.Nf3 Nf7 (23...Nc4 24.Bd4=) 24.Qh4 h6 (24...Ne4 25.Rb1=) ½–½. Rohrbacher,W – Nadenau,O, Hockenheim Baden ChS, 1994.

6.cb5 Be7

7.d4 0–0 8.Nf3 Nbd7 9.Be2 c6 10.a4 cb5 11.Bb5 Qb6 12.0–0 Rd8 13.Nc3 Nb8 14.Qe2 Bd7 15.Bd7 Nbd7 16.Nb5 Ne4 17.Rfc1 Rdc8 18.Rc8 Rc8 19.Rc1 Rc1 20.Bc1 Bb4 21.Bd2 Qa5 22.Bb4 Qb4 23.Qc2 g6 24.h3 Kg7 25.Kh2 Nd6 26.Nd6 Qd6 27.g3 Qa6 28.Ne1 Nb6 Attacks the isolani on a4 29.Qc7 Na4 30.Nc2?? (30.Qe5 Kf8=) 30...Qe2?? (30...Qc4 31.Qc4 dc4 32.Kg2–+) 31.Kg2 (better is 31.Qe5 f6 32.Qc7 Kh6 33.Qf4 Kg7 34.Qc7 Kh6 35.Qf4 Kg7 36.Qc7=) 31...Nc3?? (better is 31...Qc4 32.Qc4 dc4–+) 32.Qc3+– h5 33.Nb4 g5 34.Qd3 Qe1 35.Nc2 Qc1 36.Na3 Qb2 37.Nb5 f5 38.Nd6 Kf6 39.Ne8 Ke7 40.Ng7 Kf6 41.Nh5 Kg6 42.g4 b5 (42...Qb4+–) 43.Ng3 (43.gf5 ef5 44.Ng3 Kg7 45.Qf5 Qa3 46.Nh5 Kh6+–) 43...b4 (43...Kf6+–) 44.gf5 Kf6 45.fe6 Ke6 46.Qf5 (46.Qa6 Kf7 47.Nf5 Qd4 48.Nd4 g4 49.Qa7 Kg6 50.hg4 Kf6 51.Nf5 b3 52.Qe7 Kg6 53.Qg7) 46...Kd6 47.Qg5 (better is 47.Qc8 Qb1+–) 47...b3 48.Qf6 Kc7 49.Qe5 Kb6 50.Qd6 Ka7 51.Qc7 Ka8 52.Nf5 Qc2 53.Nd6 Qc7–+ (53...Qc7 54.Nb5 Qa5–+) 0–1. popovicigelu – hvalrossen, internet, 2012.

7.Nf3 0–0 8.Be2 c5 9.0–0 Nbd7 10.Nc3 Qc7 11.Qc2 Bd6 12.h3 Ne5 13.a4 Ng6 14.Ba3 b6 (14...e5 15.d4 cd4 16.Bd6 Qd6 17.ed4=+) 15.Rfc1 Bb7 16.Qb3 (16.d4 Rfc8=) 16...e5=+ 17.d4 ed4 18.ed4 Nf4 19.Bf1 Ne6 (19...Rfe8 20.dc5 bc5 21.Qc2–/+) 20.Ne2 (20.dc5 bc5 21.Bd3 c4 22.Nd5 Bd5 23.Bd6 Qd6 (23...cd3?! 24.Qa3 Qd7 25.Bf8 Bf3 26.Bg7 Kg7 27.gf3=+) 24.Bc4 Rfc8–/+) 20...Ne4 21.Qd1 (21.dc5 N6c5 22.Bc5 Nc5=+) 21...N6g5 22.dc5 bc5 (22...Nf3!? 23.gf3 Nc5–/+) 23.Ng5?? (better is 23.Ned4=+) 23...Bh2 (24.Kh1 Nf2#; 23...Ng5?! 24.Nd4=) 0–1. Kirdin – Starcheus, corr URS, 1992.

5.c4 dc4

6.ba6 Na6 7.Bc4 Bd7 8.Nf3 Be7 9.Ne5 0–0 10.0–0 Bc8 11.f4 Nd7 12.Qh5 Ne5 13.Be5 Bf6 14.Rf3 Be5 15.fe5 h6 16.Rg3 Kh7 17.d4 c5 18.Bd3 Kh8 19.Qg4 Qg5 20.Qf3 Qe7 21.Qe4 g6 22.Rh3 Kg7 23.Nd2 Nb4 24.Rf1 (24.Bc4 Nd5+=) 24...Nd3 (24...Ra2!? 25.Nf3 Ra3+=) 25.Qd3+= b6 26.Ne4?? (better is 26.Qb1+=) 26...Ba6–+ (26...Ra2?! 27.Qb1 Ra3 28.Nd6+=) 27.Qd1 Bf1 28.Qf1 Ra2 29.Nf6 Rfa8 30.Qf4 Rh8 31.Qh4 Ra7 32.Rg3 Kf8 33.Rf3 c4 34.e4 White prepares d5 34...b5 35.Qf4 b4 36.d5 Qc5 Black prepares the advance c3 37.Re3?? (37.Kh1 Ra1 38.Rf1 Rf1 39.Qf1–+) 37...c3 38.Kf1 Qc4 39.Kf2 c2 (better is 39...Ra2!? 40.Kg3 c2 41.Nd7 Ke8 42.Nb6–+) 40.Re1 Qd4 41.Kf1 ed5 42.Nd5 b3 43.e6 Qc4 44.Kg1 Qc8?? 45.Qf6? Rh7?? 46.e7+/– Kg8?? 47.Qb2 Qc5? 48.Kf1 Re7 49.Ne7?? Qe7–/+ 50.Qb3 Qc7 51.Rc1?? Qf4–+ 52.Ke2 Qc1 53.Qb8 Kg7 54.Qe5 Kf8 55.Qb8 Ke7 56.Qe5 Kd7 57.Qd5 Ke8 58.Qe5 Kd8 59.Qd6 Ke8 60.Qe5 Kf8 61.Qb8 Kg7 62.Qe5 ½–½. Anastasiou,Dimitrios – Deligiannis,Paraskevas, Patron CC–ch, 2008.

6.Bc4 Bb4 7.a4 0–0 8.Nc3 b6 9.Nf3 Bb7 10.0–0 Nbd7 11.Qb3 a5 12.d4 Qe7 13.Ng5 h6 14.Nh3 Bc3 15.Bc3 Ne4 16.Bb2 Nd2 17.Qc2 Nf1 18.Ba3 Ne3 19.fe3 Qf6 20.Bf8 Nf8 21.Rf1 Qg6 22.Bd3 Qh5 23.Nf4 Qg5 24.Nh3 Qe3 25.Kh1 Qd4 26.Rf4 Qe3 27.Qc7 Qh3 28.Qb7 Qd3 29.Qf7 Kh8 30.h3 Ng6 31.Rf3 Qb1 32.Kh2 Rf8 33.Qe6 Rf3 34.gf3 Qc2 35.Kg3 1–0. elsh1403 – mandepa (1655), internet, 2014.

6.Bc4 c5 7.a4 ab5 8.ab5 Ra1 9.Ba1 b6 10.f4 Bb7 11.Nf3 Be7 12.0–0 0–0 13.Ne5 Nbd7 14.Qe1 Nd5 15.Qg3 Bf6 16.d4 cd4 17.ed4 Be5 18.fe5 f5 19.Nd2 Qe7 20.h4 Rc8 21.h5 h6 22.Bb2 Qg5 23.Qf2 Ne3 24.Be6 Kh8 25.Nf3 Bf3 26.Qf3 Nf1 27.Bd7 Nd2 28.Qf5 Qf5 29.Bf5 Rd8 30.e6 Re8 31.d5 Nc4 32.Bd4 Kg8 33.g4 Kf8 34.Kf2 Ke7 35.Bg7 Kd6 36.Bg6 Rg8 37.Bh6 Ne5 38.Bf4 Rf8 39.Kg3 Kd5 40.e7 Ng6 41.ef8Q Nf8 42.g5 Ne6 43.Kg4 Ke4 44.Bd6 Nd4 45.Bc7 Nb5 46.Bb6 Nd6 47.g6 Ke5 48.Kg5 1–0. elsh1403 (1670) – 218kodl, internet, 2014.

6.Bc4 c6 ½–½. Malaniuk,V – Beshukov,S, 1998.

6.Bc4 Be7 7.Nf3 0–0 8.0–0 ab5 9.Bb5 c6 10.Be2 Nbd7 11.d4 Qb6 12.Qb3 Qd8 13.Nbd2 c5 14.Rfd1 Nd5 15.dc5 Nc5 16.Qc4 Qb6 17.Bd4 Qa6 18.Nb3 Qc4 19.Bc4 Nb3 20.Bb3 Rd8 21.Ne5 f6 22.Nf3 Bd7? (22...g5 23.e4 Nf4 24.Be3+=) 23.Rac1 (better is 23.e4 Nf4 24.Bb6+/–) 23...Bc6= 24.e4 Nf4 25.Bc4 Kf7 (25...Be4 26.Be3 Nd5–/+) 26.g3? (better is 26.Be3!? Rd1 27.Rd1+=) 26...Nh3 27.Kg2 Ng5 (better is 27...Be4 28.Be3 g5 29.Rd8 Rd8 30.Kh3 Bf3–/+) 28.Ng5= fg5 29.f3 g4 30.Be2?? (better is 30.Be3=) 30...gf3 (better is 30...Ra2!? 31.Kf1 gf3 32.Bf3–+) 31.Bf3 Ra2 32.Kh3 Ra3 33.Rf1?? (33.Bg2 g5 34.Rf1 Kg6–+) 33...Kg8 34.Bg4? Rd4–+ 35.Be6 Kh8 36.Rf7 Re4 37.Re7 Re5?? 38.Rc6!+– Rh5 39.Kg4 Ra4 40.Kh5 Ra5 41.Kg4 h5+– 42.Kh3 Kh7 43.Rcc7 b5 44.Rg7 Kh6 45.Bf5 1–0. kubak – ukres05, internet, 2012.

6.Bc4 ab5

7.Bb5 Nbd7 8.Nf3 Be7 9.0–0 0–0 10.Nc3 Nd5 11.d4 Nc3 12.Bc3 Nf6 13.Qb1 Nd5 14.Bd2 Nf6 15.Rc1 h6 16.Ne5 c6 17.Be2 Bd6 18.Bb4 Re8 19.Bd6 Qd6 20.a4 Nd7 21.f4 Ne5 22.fe5 Qc7 23.Qe4 Ra5 24.Bd3 g6 25.Qh4 Kg7 26.Qf6 Kg8 27.Qf4 Kg7 28.Qf6 Kg8+– 29.Bg6! Qe7 30.Qe7 Re7 31.Be4 Rc7 32.Rc4 Bd7 33.Rac1 Kg7 34.Kf2 f6 35.ef6 Kf6 36.Rb4 Ke7 37.Rc5 Ra8 38.Rh5 Rh8 39.g4 Rf8 40.Kg3 Rf6 41.h4 b5 42.Rc5 ba4 43.Ra4 Rb7 44.g5 hg5 45.hg5 Rf8 46.Rac4 Rg8 47.Kf4 Rf8 48.Ke5 Rg8 49.g6 Rb3 50.Rc3 Rc3 51.Rc3 Be8 52.Ra3 Bg6 53.Ra7 Kf8 54.Ra8 Be8 55.Bc6 1–0. Schulze,Harald (2155) – Gerstorfer,Werner (2030), RLNO_Cham–SWNbg1_R9_BY00/01, 2001.

7.Bb5 c6

8.Ba4 b5 9.Bb3 Bb7 10.Nf3 Be7 11.0–0 0–0 12.Nc3 Nbd7 13.h3 Nc5 14.d4 Nb3 15.ab3 c5 16.Nb5 Qb6 17.Ra8 Ra8 18.Nc3 cd4 19.Nd4 Bd5 20.Nd5 Nd5 21.Qg4 Bf6 22.Rc1 Kh8 23.Rc6 Qb4 24.Qe2 Bd4 25.Bd4 Qb3 26.Qg4 Qb1 27.Kh2 Qg6 28.Qe2 Re8 29.Qc4 h6 30.f3 Ne7 31.Rc7 Nf5 32.Be5 Ne3 33.Qe2 Nf5 34.Qe4 f6 35.Bf4 e5 36.Bc1 Nh4 37.Qe2 Nf5 38.Ba3 Qg3 39.Kg1 Rb8 40.Rc1 Nd4 41.Qc4 Nf3 42.Kh1 Qh2 0–1. elsh1403 – samor25, internet, 2014.

8.Bc4 b5 9.Bb3 Be7 10.Nf3 0–0 11.0–0 c5 12.d3 Ba6 13.Bc2 Nc6 14.Nc3 Nb4 15.a3? (better is 15.Bb1+=) 15...Nc2–+ 16.Qc2 b4 17.Ne2 Qd3 18.Qd3 Bd3 19.Rfe1 Be2 20.Re2 c4 (20...Rfd8!? 21.Rd2–+) 21.ab4–/+ Bb4 22.Bf6 gf6 23.Rea2 Ra2 24.Ra2 Rd8 25.g3 Kg7 26.Kf1 Rd1 27.Ke2 Rb1 (27...Rc1!?–/+) 28.Nd2+= Bd2 29.Kd2 f5 30.Rc2 Rb4 31.Kc3 Ra4 32.Kd4 Attacks the isolani on c4 32...Kf6 33.Rc4 (better is 33.Kc5!?=) 33...Ra2–/+ 34.f3 Rh2 35.Rc7 (35.e4!?–+) 35...Rg2 36.Rc1 Rg3 37.f4 h5 38.Rh1 Kg6 39.Rh4 Rg4 40.Rh3 h4 41.Kd3 Kh5 42.Ke2 Rg3 43.Rh2 Kg4 44.Kf2 (44.Rh1 Rg2 45.Kd3 h3–+) 44...h3 45.Rh1 Rg2 46.Kf1 Kg3 Black plans h2 47.Ke1 h2 48.Kf1 Ra2 (48...Ra2 49.Rh2 Rh2–+) 0–1. dtpwaldi – ricina (1740), internet, 2013.

8.Bc4 b5 9.Bb3 (9.Be2 Bd6=+) 9...Be7 (9...Bd6 10.d4=+) 10.Nf3 0–0 11.0–0 c5 12.d4 (12.d3!?=+) 12...c4–/+ 13.Bc2 b4 14.Ne5 Qc7 15.f3 (15.Qf3 Bb7 16.e4 Rc8–/+) 15...Bd6 16.Rf2 (16.Qe1!?–/+) 16...c3–+ 17.Bc1 Be5 18.de5 Qe5 19.a3 Nc6 20.Ba4 (20.Bb3 Rd8 21.Qe1 Bb7–+) 20...Rd8 (20...c2 21.Qc2 Ra4 22.Qa4 Qa1 23.Qc6 Qb1 24.Qc2–+) 21.Qc2 Bd7 22.ab4 Nb4 23.Qc3 Qc3 24.Nc3 Nd3 25.Rfa2 Nc1 26.Rc1= Rac8 27.Bd7 Nd7 ½–½. Zwanenbeek,I – Boots,A, Alkmaar – ACCOM Open, 1984.

8.Bc4 Bd6 9.Nf3 =+.

8.Bc4 Nbd7 9.Ne2 Be7 10.0–0 0–0 11.Nbc3 Nb6 12.Bb3 Re8 13.Nd4 Nfd7 14.Bc2 Bf6 15.Nb3 Nc4 16.Bc1 Nf8 17.Rb1 g6 18.Ne4 Bg7 19.Qe2 Nd6 20.Nec5 Ra2 21.Qd3 b6 22.Ne4 Ne4 23.Qe4 Bb7 24.Qc4 b5 25.Qd3 Qc7 26.Ra1 Ba1 27.Na1 Ra1 28.Bb2 Rf1 29.Kf1 e5 30.Bb3 Nd7 31.Qc3 Kg7 32.f4 f6 33.fe5 Qe5 34.d4 Qe3 35.Qc2 Qe1 0–1. mirgro7 – mrgeorge, internet, 2014.

8.Bc4 Be7 9.Ne2 0–0 10.0–0 b5 11.Bb3 Bb7 12.f4 Qc7 (12...c5 13.d3+=) 13.Be5 Qb6 14.Nbc3 c5 15.f5 Qc6 (15...c4 16.Bc2 b4 17.Bf6 Bf6 18.Rb1–/+) 16.Rf2 Ng4?? (better is 16...Nbd7 17.Bf6 Nf6–/+ (worse is 17...gf6 18.Nf4+=)) 17.Rf3?? (better is 17.Nd4 Nf2 18.Nc6 Nc6 19.Kf2 Ne5 20.Nb5 ef5 21.Qb1+=) 17...Ne5–+ 18.Rg3 (18.Rf2 Nd3 19.Rf3 b4–+) 18...Bh4 19.fe6 Bg3 20.ef7 (20.Bd5 Bh2! 21.Kh2 Qd6–+) 20...Kh8 (better is 20...Rf7 21.Bd5 Bf2 22.Kh1–+) 21.Qf1 (21.Bd5 Bh2! 22.Kh2 Qh6 23.Kg1 Bd5 24.Nd5 Ng4–+) 21...Bh4 22.Bd5 Qc7 (better is 22...Qd7!? 23.Bb7 Qb7 24.Qf4–+) 23.e4 (23.Nf4 Bd5 24.Nfd5 Qd6–+) 23…Ng4 (23...Ng4 24.g3 Bf6 25.Nb5 Qe7 26.Bb7 Qb7–+) 0–1. jura1946 – butorraktarr, internet, 2013.

8.Be2 b5 9.f4 Be7 10.Nf3 0–0 11.0–0 Nd5 12.Ne5 Qc7 13.Qe1 Nd7 14.Qg3 Bf6 15.d4 N7b6 16.Nd2 Ba6 17.h4 b4 18.Bd3 Bd3 19.Nd3 Na4 20.h5 h6 21.Ne5 Nb2 22.Ne4 Na4 23.Nf6 Nf6 24.Rfc1 Nc3 25.Rc2 Nd7 26.a3 Ne5 27.fe5 Nd5 28.a4 b3 29.Rf2 Rfb8 30.Rb2 Qe7 31.e4 Nc7 32.Rb3 Rb3 33.Qb3 c5 34.Qb7 cd4 35.Rc1 Ra4 36.Rc7 Qg5 37.Rf7 Ra1 38.Rf1 Rf1 39.Kf1 Qf4 40.Kg1 Qe5 41.Qc8 Kh7 42.Qc2 Qh5 43.e5 Kg8 44.Qe4 Qf7 45.Qd4 Kh8 46.Qd6 Kh7 47.Kh2 Kh8 48.g3 Kh7 49.Kg2 Qh5 50.Kf2 Qf3 0–1. elsh1403 (1730) – greg5, internet, 2014.

8.Be2 Qd5 9.Nf3 Ra2 10.Nc3 Ra1 11.Qa1 Qd8 12.0–0 Be7 13.d4 0–0 14.Ne5 (14.Qa7 Nbd7=) 14...Nbd7 15.Rd1 Qc7 16.Bf3 Bd6 17.Ne2 (17.Ba3 Ne5 18.de5 Be5 19.Bf8 Kf8 20.Qa3 Kg8=) 17...Ne8 (17...Nd5+=) 18.Qa2 (better is 18.g3=) 18...Ne5–/+ 19.de5 Be5 20.Be5 Qe5 21.Qa8 (21.Qa7 Nc7–/+) 21...Nf6 22.Nd4 (22.Qa7 Qc7–+) 22...Nd5 (22...Qc7 23.Qa7 e5 24.Nb3–+) 23.Qa7 f5 24.Nb3 (24.Qc5 Rd8–/+) 24...f4 (24...Qb2 25.Nc5–+) 25.e4 (25.ef4 Qf4 26.Qc5 Qa4–+) 25...Nf6 (better is 25...Nc3!? 26.Qd4 Qd4 27.Rd4 e5–+) 26.Nc5–/+ g5 27.Nd3 (27.h3 Qc7–/+) 27...Qb5 (27...Qc3 28.h3–/+) 28.h3+= Nd7 (28...Re8!?+=) 29.Qd4= c5 (29...Qa5 30.Qd6 Nf6 31.Nc5+=) 30.Qd6 Re8?? (better is 30...c4 31.Bg4 Nf6 32.Be6 Be6 33.Qe6 Kh8=) 31.Bh5+– Rf8 32.Qe6 Kh8 33.Qe7 c4?! 34.Nc1 Kg8 35.Rd5 (35.Rd5 Qd5 36.ed5+–) 1–0. Nikolic,Jovane (1745) – Paz,Alexandre Da Silva (1945), Sao Paulo Open Grupo B – Sub2050, 2014.

8.Be2 Bd6!? +=.

8.Be2 Nbd7 9.Nf3 Qc7 10.0–0 Be7 11.Nc3 0–0 12.Rc1 Nb6 13.Nb5 Qd8 14.Nc3 Nbd5 15.Qb3 Nc3 16.Rc3 Nd5 17.Rc4 Bf6 18.d4 Qd7 19.e4 Nf4 20.Bd1 b5 21.Rb4 Be7 22.Ne5 Qc7 23.Nc6 Qc6 24.Rb5 Ba6 25.Rc5 Bc5 26.dc5 Bf1 27.Qc3 f6 28.Kf1 Qe4 29.f3 Qd3 0–1. elsh1403 – zaiko48, internet, 2014.

8.Be2 Be7 9.a4 0–0 10.Nf3 Nbd7 11.Nc3 Nc5 12.0–0 b6 13.d4 Nce4 (better is 13...Ncd7!?=) 14.Ne4+/– Ne4 15.Bd3 (15.Qc2 Nf6+/–) 15...Nf6+= 16.Ne5 Bb7 17.Be2 c5 18.Bf3 Bf3 19.Nf3 c4 (19...Ne4!?=) 20.Ne5+= Qc7 21.Rc1 Rfc8 22.Bc3 (better is 22.Rc4 Qb7 23.Qb3+/–) 22...Bd6 23.f4 (23.Ra1 Nd5 24.Qc2 Be5 25.de5 Nc3 26.Qc3 Ra5–/+) 23...Nd5–/+ 24.g4?? (better is 24.Bd2 c3 25.e4–/+) 24...Ne3–+ 25.Qf3 Nd5 (better is 25...Nf1 26.Rf1 f6 27.g5 fe5 28.fe5–+) 26.g5 Be5 27.fe5 Rf8 (27...Ra4 28.Ra1 Ra1 29.Ba1–+) 28.h4 (better is 28.Ra1–+) 28...Ra4 29.h5 Ra3 30.h6 b5 (30...Qd8 31.hg7 Qg5 32.Kh1 Qh6 33.Kg1 Qg7 34.Kf2 Ra2 35.Ke1–+) 31.hg7 Kg7 32.Qh3 b4 (32...Nc3?! 33.Rc3 Rc3 34.Qc3–+) 33.Qh6 Kg8 34.Bd2 Qe7 Black plans c3 35.Rf2? Rg3–+ 36.Rg2 Rg2 37.Kg2 c3 38.Be1? Nf4 39.Kf3 Nd3 40.Rd1 Qb7 41.Ke3 Nb2 42.Rc1 Qg2 43.Bc3 bc3 44.Rh1 Qc2 45.g6 Qg6 46.Qg6 fg6 47.Rc1 Na4 48.Ke4 Rd8 49.Ke3 Kf7 50.Ke4 Kg7 51.Ke3 h5 0–1. elektrooon – samson57, internet, 2013.

8.Be2 Be7 9.Nf3 0–0 10.0–0 Na6 11.Nc3 Nb4 12.a3 Nbd5 13.d4 Nc3 14.Bc3 Ra3 (14...Ba3? 15.Qb3+–) 15.Ra3 Ba3 16.Qb3 Qe7 17.Ra1 Bd6 18.Ra8 Nd5 19.h3 h6 20.Bc4 b5 21.Bd5 (21.Bd3!?+=) 21...ed5–/+ (21...cd5?! 22.Qb5 Bd7 23.Rf8 Kf8 24.Qb6=) 22.Nd2 Qb7 23.Ra2 Bf5 (23...b4!? 24.Bb2 Bf5–+) 24.Bb4+= Qe7 25.Bd6 Qd6 26.Qc3 (26.Nf3 Be4+=) 26...Rb8 27.Nb3 b4 28.Qc1 Bd3 (28...Qg6!? 29.Kh2 Be4–/+) 29.Rb2 Bc4 30.Nc5 b3 31.Qc3 Qg6 32.Nb3? (32.Nd7 Ra8 33.Qb4–/+) 32...Qd3–+ 33.Rc2? (better is 33.Qd3 Bd3 34.Nc1 Rb2 35.Nd3 Rb1 36.Kh2–+) 33...Qc3 34.Rc3 Rb3 (34...Bb3?! 35.Rc6 Kh7 36.Kh2–+) 35.Rc2 Rb1 36.Kh2 Ra1 37.g4 Ra2 38.Ra2 Ba2 39.Kg3 Kf8 40.Kf4 Ke7 41.Ke5 (41.h4 Bc4–+) 41...f6 (41...g5 42.e4 f6 43.Kf5 Kf7 44.f3 Bc4 45.h4 Ba6 46.hg5 hg5 47.ed5 Bd3) 42.Kf5 Bb1 43.Kf4 g5 44.Kf3 Kd6 45.Kg3 c5 46.dc5 Kc5 47.h4 d4 48.ed4 Kd4 49.hg5 hg5 50.f4 Ke3 51.fg5 fg5 52.Kg2 Kf4 53.Kh3 Be4 54.Kh2 Kg4 55.Kg1 Kh3 56.Kf2 g4 57.Ke3 g3 58.Kf4 g2 59.Ke3 g1Q 60.Kf4 Qf2 61.Ke5 Qf5 62.Kd4 Qd5 63.Ke3 Bb1 64.Kf4 Qe4 65.Kg5 Qf5 66.Kh6 Qg6 0–1. tyop (1810) – nimic (1730), internet, 2013.

8.Be2 Be7 9.Nf3 0–0 10.0–0 b5 11.a4 b4 12.d4 Nd5 13.Ne5 Qb6 14.Nc4 Qc7 15.a5 Ba6 16.e4 Nf4 17.Nbd2 Ne2 18.Qe2 c5 19.Qg4 cd4 20.Bd4 g6 21.Be5 Qc5 22.Qf4 Nd7 23.Rfc1 Rac8 24.Nd6 Qc1 25.Rc1 Rc1 26.Nf1 Rf1 0–1. surmavlod – gicupirvu2007, internet, 2013.

8.Be2 Be7 9.Nf3 Qb6 10.Bd4 c5 11.Be5 Nc6 12.Bc3 0–0 13.0–0 Ne4 14.Qc2 Nc3 15.Nc3 (15.Qc3?? Bf6 16.d4 cd4–+) 15...Bf6 16.Rab1 Nb4 17.Qb3 Bd7?? (better is 17...Qa5!?+=) 18.Ne4?? (better is 18.a3+–) 18...Be7 19.a3 Bc6 (better is 19...Qc6!? 20.Ne5 Qe4 21.Nd7 Rfd8+/–) 20.Nc3+– c4 (better is 20...Rfd8+–) 21.Bc4 Qc5 (21...Bf3 22.gf3 Qc6 23.ab4 Qf3+–) 22.ab4 Qh5 23.Ne1 Bd6 24.g3 Qh3 25.Ng2 (better is 25.b5 Bd7 26.Nc2+–) 25…Qg2# (worse is 25...Bg2 26.Rfc1+=) 0–1. surmavlod – basior22, internet, 2013.

8.Be2 g6 9.Nf3= Bg7 10.d4 0–0 11.0–0 Nbd7 12.Nc3 c5 13.Qb3 cd4 14.ed4 Qb6 15.Ba3 Rd8 16.Be7 Re8 17.Bb4 Bf8 18.a3 e5 (18...Nd5 19.Nd5 ed5 20.Bd3=) 19.d5 (19.Bc4 Bb4 20.ab4 Ra1 21.Bf7 Kg7 22.Ra1+/– (22.Be8 Rf1 23.Kf1 Ne8–/+)) 19...e4= 20.Ng5 (20.Nd2!?=) 20...h6 21.Nh3 Nc5 22.Qc4 Bh3 23.gh3 Ncd7 24.Bf8 Kf8 (worse is 24...Rf8 25.Ne4 Rfc8 26.Nf6 Nf6 27.Rfb1=) 25.Ne4?? (better is 25.Rfb1 Rec8 26.Rb6 Rc4 27.Rb3+=) 25...Re4–+ 26.Qd3 Qd4 27.Qb5 (27.Qc2 Qd5 28.Bf3 Qg5 29.Kh1 Rea4–+) 27...Ne5 (27...Qd5!? 28.Qd5 Nd5 29.Bf3–+) 28.Qb7 (28.Rfd1 Qc3 29.Qb7 Rd8–+) 28...Re8 (better is 28...Qd5 29.Qd5 Nd5–+) 29.Bb5?? (29.Rfd1 Qc3 30.Bf1 Nf3 31.Kg2–+) 29...Nf3 30.Kh1 (30.Kg2 R4e7 31.Qe7 Re7 32.Rfc1–+) 30…Qe5 (30...Qe5 31.Qf7 Kf7 32.Be8 Ke8 33.Kg2 Qh2 34.Kf3 Qh3) 0–1. blackiwhite (1715) – maksimus13 (1760), internet, 2013. (=1.c4 Nf6 2.b4 e6 3.b5 d5 4.e3 a6 5.Bb2 dc4 6.Bc4 ab5 7.Bb5 c6)

7.Bb5 Bd7

8.a4 Bb5 9.ab5 Ra1 10.Ba1 Qd5 11.Qa4? (11.b6 cb6 (11...Qg2?? 12.bc7 Qh1 13.cb8Q Ke7 14.Qc7 Nd7 15.Qg4+–) 12.Bf6 gf6 13.Qa4 b5–/+) 11...Nfd7 (11...Qg2 12.b6 Nc6 13.bc7 Kd7 14.c8Q Kc8 15.Qa8 Kc7 16.Be5 Ne5 17.Qa5 Kd6 18.Qb4 Kd7 19.Qb5 Nc6 20.Qb7 Kd6–+) 12.Nf3=+ Nb6 (13.Qa7 N8d7=; better is 12...Qd3!? 13.Nc3 Bd6=+). Rettenbacher,W – Stabenow,Juergen, corr SOK–87–06, 1988.

8.a4 Bb5 9.ab5 Ra1 10.Ba1 Qd5 11.Nc3 Qg2 12.Qf3 Qf3 13.Nf3 Nbd7 14.d4 Ba3 15.Ke2 Ke7 16.Rg1 Ra8 17.Rg7 Bc1 18.e4? (better is 18.Ng5 Ra1 19.Rf7 Ke8 20.b6–/+) 18...Ra1–+ 19.e5 Nh5 20.Rh7 (20.Rg4 Nf4 21.Kd1 h5–+) 20...Nf4 21.Kd1 Bb2 22.Kc2 Bc3 23.Kc3 (23.Ng5 Nd5 24.Rf7 Ke8–+) 23…Ra3 (23...Ra3 24.Kc2 Rf3–+) 0–1. jura1946 – bellagnocca2, internet, 2012.

8.a4 Bb5 9.ab5 Ra1 10.Ba1 Qd5 11.Nf3 Qb5 12.Nc3 Qa6 13.d3 Bb4 14.0–0 Bc3 15.Bc3 Nbd7 16.Bf6 Nf6 17.Qb3 0–0 18.d4 c6 19.h3 b5 20.Ne5 Nd5 21.Qb1 f6 22.Nd7 Re8 23.Nc5 Qa3 24.h4 (24.Qe4 e5–/+) 24...e5 25.Qe4 Kf7 (25...Qc3 26.Qf5 ed4 27.Qd7–/+) 26.h5 (26.Qh7!? ed4 27.ed4=) 26...g6 (26...ed4 27.Qd4 Qc3 28.Nb7 Qd4 29.ed4–/+) 27.h6 (27.Qg4 f5 28.Qh4 Kg7–/+) 27...Nb4 (27...f5!? 28.Qh4 ed4 29.Qd4 Qc3–/+) 28.Nb7 Re6?? (28...Kg8 29.de5 Re5 30.Qg4=) 29.Nc5?? (better is 29.Nd8 Ke7 30.Ne6 Ke6 31.de5+–) 29...Re7+= 30.de5 Re5 31.Qg4 f5?? 32.Qg5?? Rc5–+ 33.Qd8 Nd5 34.Qd7 Ne7 35.Rd1 Rd5 36.Rd5 cd5 37.Qb5 Qd6 38.g3 Qf6 39.Qb8 Qg5 40.Qh8 Qh6 41.Kg2 Qg7 (41...Qg7 42.Qd8 g5–+) 0–1. elektrooon – dziadek58j, internet, 2013.

8.a4 Bb5 9.ab5 Ra1 10.Ba1 Bd6 =+.

8.a4 Bc6 9.Nf3 Be7 10.0–0 0–0 11.Ne5 Bb5 12.ab5 Ra1 13.Ba1 Nbd7 14.f4 Ne5 15.fe5 Ne4 16.d3 Nc5 17.d4 Ne4 18.Nd2 Nd2 19.Qd2 Qd7 20.Qe2 Ra8 21.Bc3 Qd5 22.Rb1 Ra2 23.Rb2 Ra1 24.Kf2 Qe4 25.Qf3 Qd3 26.e4 Rf1 27.Kg3 Rf3 28.gf3 Qc3 0–1. elsh1403 (1675) – satturnus (1730), internet, 2014.

8.Qb3 Bb5 (8...Ne4!? 9.Nf3 Nc5 10.Bd7 Qd7–/+ (10...Nbd7?! 11.Qc2=)) 9.Qb5= Nbd7 10.Nf3 (10.Qb7?? Rb8 11.Qc6 Rb2–+) 10...c6 11.Qc4 (11.Qb7? Rb8 12.Qc6 Rb2–+) 11...Qb6 12.Bf6 Nf6 13.0–0 Qa6 14.Rc1 Bd6 15.a4 Qc4 16.Rc4 Kd7 17.Nc3 b5 18.Rd4 Ke7 19.Ng5 (19.Rb1!? Rhb8 20.ab5 cb5 21.g4+= (21.Nb5?? Rb5 22.Rc1 Rc8–+)) 19...Be5 20.Rb4 Bc3 21.dc3 Nd5 22.Rb3 Ra7 23.e4 Nb6 (23...Ra4?! 24.Ra4 ba4 25.Rb7 Kf6 26.ed5 (26.Nf7 Ra8 27.g4 a3 28.g5 Kg6 29.Ne5 Kg5–+) 26...Kg5 27.de6 fe6 28.Rg7 Kf6 29.Ra7=) 24.a5 Nc4 25.a6 (25.f4!?–/+) 25...Rha8–+ 26.f4 Ra6 27.Ra6 Ra6 28.Nh7 f6 29.e5 Ra8 30.ef6 gf6 31.h4? (31.Rb1 Kf7 32.Rd1–+) 31...Rh8 32.Ng5 fg5 33.hg5 Ra8 34.Kf2 Rf8 35.g3 (35.Kg3 Rd8–+) 35...e5 36.Rb1 ef4 37.Re1 Kd6 38.g4 (38.Re4 fg3 39.Kg3–+) 38...Ne5 39.Rd1 Kc5 40.Rg1 (40.Rh1 Kc4 41.g6 Rg8–+) 40...Rg8 41.g6 Rg6 42.g5 Kc4 43.Rb1 (43.Ke2 c5–+) 43...Kc3 44.Rc1 (44.Ke2 Rg5 45.Ra1 Kd4 46.Rd1 Ke4–+) 44...Kd2 45.Ra1 b4 46.Ra5 Rg5 47.Ra4 c5 (47...b3 48.Ra6 b2 49.Rb6 Nd3 50.Kf3 Rb5 51.Rc6 b1Q 52.Rc2 Qc2 53.Kg2 Qc6 54.Kh3 Rg5 55.Kh4 Qh6) 48.Ra5 b3 49.Ra3 c4 50.Ra1 (50.Ra4 b2 51.Rb4 Nd3 52.Kf3 Nb4 53.Kf4 Ra5 54.Kg4 b1Q 55.Kg3 Qg6 56.Kf3 Rf5 57.Ke4 Qg4) 50...b2 51.Rb1 (51.Rh1 Nd3 52.Kf3 Rg3 53.Ke4 Nf2 54.Ke5 Nh1 55.Kf6 b1Q 56.Ke5 Qb6 57.Kf4 Qc5 58.Ke4 Nf2 59.Kf4 Qg5) 51...c3 52.Rh1 (52.Rg1 Rg1 53.Kg1 b1Q 54.Kg2 Ke3 55.Kh2 Kf3 56.Kh3 Qh7) 52...Nd3 (52...Rg3 53.Rb1 Nd3 54.Kf1 c2 55.Rb2 Nb2 56.Kf2 Nd3 57.Kf1 c1Q) 53.Kf3 Rg3 54.Ke4 Nf2 55.Kf4 (55.Kd4 Nh1 56.Ke4 b1Q 57.Kd5 Re3 58.Kd4 c2 59.Kc5 Rd3 60.Kc4 c1Q) 55...Nh1 0–1. Jernselius,K (1765) – Poulsen,I (2115), Politiken Cup, 2015.

8.Nc3 Bb4 9.a4 0–0 10.Nge2 Nc6 11.0–0 Qe7 12.Bc6 Bc6 13.Qb3 e5 14.d4 Bd6 15.d5 Bd7 16.e4 Nh5 17.Nb5 Kh8 18.Ng3 Nf4 19.Bc1 f5 20.ef5 Bf5 21.Bf4 ef4 22.Nf5 Rf5 23.Rae1 Qg5 24.Nd6 cd6 25.Qb7 Raf8 26.a5 f3 27.Re7 Qg2 0–1. elektrooon – harveywh, internet, 2013.

8.Nc3 Bb5 9.Nb5 Ra5 10.Bf6 Qf6 11.Rb1 =+ (< 11.Nc7 Kd8–/+).

8.Nc3 Bb5 9.Nb5 c6 10.Nd4 Be7 11.f4 0–0 12.Ngf3 c5 13.Ne2 Nc6 14.0–0 b5 15.h3 Ne4 16.Qc2 f5 17.d3 (17.Qb3 Qd5 18.d3= (18.Qb5?? Rfb8 19.a4 Rb5 20.ab5 Na7–+)) 17...Nb4–/+ 18.Qb3 Qd3 (18...Nd3!? 19.Qe6 Kh8–/+) 19.Qe6= Rf7 20.Ne5 Qe3 21.Kh1? (better is 21.Kh2!? Raf8 22.Nf7 Rf7 23.Nc3=) 21...Raf8–/+ (21...Qe2?? 22.Qf7 Kh8 23.Ng6 hg6 24.Qg7) 22.Nf7? (22.Nc3 Ng3 23.Kh2 Nf1 24.Rf1 Bh4–+) 22...Rf7 (better is 22...Nf2 23.Rf2 Qe6–+) 23.Qc8–/+ Rf8 (better is 23...Bf8 24.Nc3 A) 24...Nc3?! 25.Rf3 Qe4 26.Bc3= (worse is 26.Rc3 Nd3–/+); B) 24...Ng3 25.Kh2 Nf1 26.Rf1 Nd3–+) 24.Qe6= Rf7 25.Qc8 Rf8 (better is 25...Bf8 26.Nc3 A) 26...Nc3?! 27.Rf3 Qe4 28.Bc3= (worse is 28.Rc3 Nd3–/+); B) 26...Ng3 27.Kh2 Nf1 28.Rf1 Qd2–+) 26.Qe6= Rf7 ½–½. jura1946 – vlada57 (1745), internet, 2012.

8.Nc3 Bb5 9.Nb5 c6 10.Bf6= gf6 11.Nf3?? (better is 11.Nc3=) 11...cb5–+ 12.Nd4 (12.Qe2 b4–+) 12...Qd5 13.0–0 e5 (13...Nc6 14.Nf3–+) 14.Nf5 e4 15.Nd4 Bg7?? 16.Qg4= 0–0?? 17.Nf5+– (17...Qf5 18.Qf5+–) 1–0. gtate (1930) – flgs (2040), net–chess.com, 2004.

8.Bd7 Nbd7 9.Nf3 c5 10.0–0 Be7 11.Qc2 0–0 12.Nc3 Ra5 13.a4 Nb6 14.Qb3 c4 15.Qc2 Qd3 16.Qd3 cd3 17.Ne5 Re5 18.Rfb1 Nc4 19.Bc1 b6 20.Nb5 Bc5 21.Bb2 Nb2 22.Rb2 Ne4 0–1. McRiley – StalinHorse, ICC, 1999.

8.Be2 Bc6 9.Nf3 Be7 10.0–0 Nbd7 11.d4 0–0 12.Nc3 Bb4 13.Qb3 Bd6 14.a4 Nd5 15.Nb5 Bb5 16.ab5 Ra1 17.Ra1 N7b6 18.h3 Qe7 19.Ne5 Be5 20.de5 Qb4 21.Qb4 Nb4 22.Ba3 (22.Ra7 Rb8+/–) 22...N6d5? (better is 22...Ra8!? 23.Rd1 N4d5=) 23.e4 Nc3? (better is 23...Nc2!? 24.Rc1 Na3 25.ed5 ed5 26.Rc7 b6+/–) 24.Bb4+– Ne2 25.Kf1 Nd4 26.Bf8 Kf8 27.Ra8 Ke7 28.Ra7 Kd7 29.Rb7 Nb3 (29...Kc8 30.Ra7 Nb5 31.Ra8 Kd7+–) 30.b6 Kc6 31.Rc7 Kb6 32.Rf7 Nd2 33.Ke2 Ne4 34.Rg7 Kc5 35.Rh7 Kd5 36.Rh5 (36.Ke3 Nf2 37.Kf2 Ke5 38.Rh5 Kd6+–) 36...Nc3 37.Kf3 Nb5 (37...Kd4 38.h4+–) 38.Kg3 (38.Kf4 Kc6+–) 38...Nd4 39.f4 Ne2 40.Kg4 Nd4 41.Rh8 (41.Rh8 Ke4 42.Re8+–) 1–0. surmavlod – snapper, internet, 2013.

8.Be2 Nc6 9.f4 Be7 10.Nf3 0–0 11.0–0 Nb4 12.Ne5? (12.Nc3 Nbd5=) 12...Ra2 (better is 12...Ba4 13.Qc1 Nc2–+) 13.Ra2= Na2 14.Qb3 Nb4 15.Bc3 Nbd5 16.Bd4 (16.Qb7!? Qa8 17.Qa8 Ra8 18.g4=) 16...b6 17.Nc3 c5 18.Nd5 Nd5 (18...cd4?! 19.Ne7 (worse is 19.Nd7 Nd7 20.Ne7 Qe7–/+) 19...Qe7 20.Qb6 de3 21.de3+=) 19.Ba1 Be8 20.e4 Nf6 21.d3 Nd7?? (better is 21...b5–/+) 22.Nc6+– Bf6?? (22...c4 23.Qc4 Bc5 24.Qc5 Nc5 25.Nd8 Ba4 26.Ne6 fe6+/–) 23.Nd8 (23.Nd8 Bd8 24.d4+–) 1–0. jura1946 – zaqazy, internet, 2013.

5.c4 Bd7

6.a4 dc4 7.Bc4 ab5 8.ab5 Ra1 9.Ba1 Bb4 10.Qb3 c5 11.Bc3 Bc3 12.Nc3 0–0 13.Nf3 b6 14.Ne5 Bc8 15.d3 Bb7 16.0–0 Nfd7 17.Nd7 Nd7 18.Rd1 Qg5 19.e4 Ne5 20.d4 cd4 21.Na4 Be4 22.g3 Qg4 23.Nb6 Nf3 24.Kf1 Nh2 25.Kg1 Qh3 26.Bf1 Nf1 27.f3 Qg3 28.Kf1 Bf3 29.Rd2 Bg2 30.Rg2 Qb3 31.Nd7 Qb5 32.Kg1 Qd7 0–1. popovicigelu – chmelik (1755), internet, 2013.

6.ba6 ba6 7.cd5 Nd5 8.Nf3 Nf6 9.Be2 Be7 10.0–0 0–0 11.d4 Ne8 12.Nbd2 Nc6 13.a3 Rb8 14.Rb1 Qc8 15.Bc3 Ba3 16.Nc4 Bb4 17.Bb4 Rb4 18.Nce5 Rb1 19.Qb1 Ne5 20.Ne5 f6 21.Nd7 Qd7 22.Ba6 Nd6 23.Be2 Qc6 24.Bf3 Qb6 25.Qa2 White prepares the advance d5 25...Kf7 (25...Nf7 26.Rc1+/–) 26.h3 Qb5 27.Rc1 Rc8 28.d5 (better is 28.Bc6 Qb6 29.Bd7+–) 28...e5+/– 29.Bg4 f5 30.Bf3 e4 31.Be2 Qb7 32.Rc6 g6 33.Qa1 Rb8 34.Qe5 Qb2?? (better is 34...Rf8+/–) 35.Rc7+– Kg8 36.Qg7 (better is 36.Qd6 Qb6 37.Qe7 Qc7 38.Qc7+–) 36...Qg7–+ 37.Rc6 (37.Rg7 Kg7 38.f4–+) 37...Qd7 (37...Rb1 38.Bf1 Qa1 39.Kh2 Rf1 40.Rc2 Qe5 41.g3 Qa1 42.g4 Rh1 43.Kg3 Qg1 44.Kf4 Qh2 45.Kg5 Nf7 46.Kf6 Qd6) 38.g3 Rc8 0–1. rom49szachy – dorusah, internet, 2012.

6.Nc3 ab5 7.cb5 (7.Nb5 Bb5 8.cb5 Bd6=+) 7...Bd6 (7...e5 8.d4 e4 9.Nge2=+) 8.Nf3 e5 9.d4 (9.Be2 0–0=+) 9...e4 10.Ne5 Be6 11.Be2 (11.a4 Nbd7 12.Nd7 Qd7=+) 11...Nbd7 12.Nd7 Kd7 (12...Nd7!? 13.0–0 Qh4=+) 13.0–0= c5 (13...Qe7!?=) 14.dc5+= Bc5 15.Na4 (15.Rc1 Ke8+=) 15...Bd6 16.Qd4 Ke7 17.Nb6 (17.Rfc1 Qb8 18.h3 Nd7+=) 17...Rb8 (17...Ra5 18.Rfc1+=) 18.Rac1 (18.Rfc1 Ke8+=) 18...Ke8 19.f4 ef3 20.Bf3 Bc7 21.Na4 Ra8 22.g3 (22.b6 Bd6+=) 22...Qe7 23.Bg2 Bd6= 24.Nb6 Ra2 25.Nd5+/– Nd5 26.Bd5 Ra5 27.Qg7 Rf8 28.Bf6 Qd7 29.Rfd1 Be7?? 30.Be7 Ke7 31.Be6 Qe6 32.Qg5 f6 33.Qg7 Qf7 34.Qg4 f5 35.Qd4 Ra6 36.ba6 Qd5 37.Qd5 Kf6 38.Qd6 Kg5 39.h4 Kh5 40.Qf8 Kg4 41.ab7 Kg3 42.Qf5 Kh4 43.Rc4 Kg3 44.b8B# (44.b8Q#) 1–0. Machete (2310) – OliPow (2435), ICC, 2003.

6.a4 ab5

7.ab5 Ra1 8.Ba1 Bb4 9.Qb3 c5 10.Nf3 dc4 11.Bc4 0–0 12.0–0 Qe7 13.d4 b6 14.Nbd2 Bc8 15.Bb2 Nbd7 16.Rd1 Bb7 17.Ne5 Ne5 18.de5 Nd7 19.f4 g5 20.g3 h5 21.Kf2 Kh8 22.Nf3 Bf3 23.Kf3 g4 24.Kf2 h4 25.e4 h3 26.f5 Qg5? (26...Kh7 27.Qe3 Rd8 28.Qf4+–) 27.Qe3 (better is 27.Rd7 Bd2+–) 27...Qg7 (27...Qe3 28.Ke3 Nb8+–) 28.Rd7 1–0. carocan (1690) – robokiller, internet, 2012.

7.cb5 Bb4 8.Qb3 Ba5 9.f4 0–0 10.Nf3 c6 11.Bd3 c5 12.Be2 Qb6 13.0–0 c4 14.Qc2 Bb4 15.Bd4 Bc5 16.Nc3 Bd4 17.Nd4 Qd6 18.Bf3 e5 19.fe5 Qe5 20.Nce2 Bg4 21.Nf4 Nbd7 (21...Bf3 22.Rf3 Ra5=) 22.h3 (22.Nd5!? Nd5 23.Bg4+/–) 22...Be6 23.Nfe6 (23.a5!?=) 23...fe6+= 24.Be2 Ne4 25.Nf3 Qg3 26.d3 cd3 27.Bd3 Ndf6 28.Rae1 (28.a5 Rac8 29.Qd1 Ng5=) 28...Rac8 29.Qb1 Rc3 30.Nd4?? (better is 30.b6–/+) 30...Qe5?? (30...Nd2 31.Rf3 Qe5 (31...Nb1?! 32.Rg3 Rd3 33.Ne6=) 32.Bh7 Nh7 33.Rf8 Nf8–+) 31.a5 1–0. jura1946 – fregene65, internet, 2012.

5.Nf3= ab5

6.Bb5 c6

7.Be2 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 a6 4.e3 ab5 5.Bb5 c6 6.Be2 d5 7.Nf3).

7.Bd3 Na6

8.Be2 Bd6 =.

8.c4 Nc5=+

9.Qe2!? =+.

9.Bc2 dc4–/+

10.Ne5 Nd3 11.Bd3 cd3 12.Qb3 Qc7 13.Qd3=+ Bd6 14.f4 0–0=+ 15.0–0 Rd8 =+.

10.Ne5 Nd3 11.Bd3 cd3 12.Qb3 Qc7 13.Qd3=+ Bd6 14.f4 0–0=+ 15.Nf3 Rd8 16.Bf6 gf6 17.Qc2 b6 18.Nc3 Ba6 19.d4 Bb4 =.

10.Ne5 Nd3 11.Bd3 cd3 12.Qb3 Qc7 13.Qd3=+ Bd6 14.f4 0–0=+ 15.Nf3 Rd8 16.Bf6 gf6 17.Qc2 b6 18.Nc3 Ba6 19.Ne4 Be7 20.g4?? (Better is 20.Nd4=) 20...Bd3–+ 21.Nf6 (21.Qb2 Be4 22.Rf1 Rd3–+) 21...Bf6 22.Qc1 Ba1 23.Qa1 Be4 24.0–0 Bf3 25.Rf3 Rd2 26.Qf6 Raa2 27.Qg5 Kf8 28.Qh6 Ke8 29.Qh7 Qd6 30.Qg8 Qf8 31.Qf8 Kf8 32.h4 Rg2 33.Kh1 Rg4 34.Rh3 Rag2 (35.Rf3 b5–+) 0–1. Haugen,Brett – Elliot,Keith, compuserve, 1995.

10.Ne5 Nd3 11.Bd3 cd3 12.Qb3 Qc7 13.Qd3=+ Bd6 14.f4 0–0=+ 15.Nf3 Qe7 16.Bf6 Qf6 17.Ng5 –/+.

10.Ne5 Nd3 11.Bd3 cd3 12.Qb3 Qc7 13.Qd3=+ Bd6 14.Nc4 Bb4 =.

10.Ne5 Nd3 11.Bd3 cd3 12.Qb3 Qc7 13.Qd3=+ Nd7 14.Qe4 =+.

10.Ne5 Nd3 11.Bd3 cd3 12.Qb3 Qd5 13.f3 –/+.

10.Ne5 Qd5 11.0–0 Bd6 12.Ng4 –/+.

6.Bb5 Bd7

7.a4 Bb5 8.ab5 Ra1 9.Ba1 c6 10.0–0 Be7 11.bc6 bc6 (11...Nc6 12.Bf6 (12.Qe2 0–0 13.Nc3 Qd7 14.Rb1 Ra8 15.Nb5 Ne4) 12...Bf6 13.d4= (13.Nc3 Qa5 14.Qa1 Kd7 15.Qa5 Na5) 13...0–0 14.Nc3 Qa5 15.Qa1 Rc8) 12.Ne5 (12.Bf6 Bf6 13.d4 (13.Nc3 Nd7 14.Qb1 Qc7 15.Qb4 c5) 13...c5= (13...Nd7 14.c4 0–0 15.cd5 cd5) 14.Qd3 0–0 15.dc5 Nd7) 12...0–0 (12...Qc7 13.Nd3 Nbd7 14.Bf6 Bf6 15.Nc3 0–0) 13.d3 (13.c4 Qc7= (13...Qd6 14.f4 Nbd7 15.Qa4 Rc8) 14.cd5 cd5 15.Bd4 Nbd7) 13...Nfd7 (13...Qd6 14.c4+= (14.Nd2 Nbd7 15.f4 Ra8) 14...Nbd7 15.f4 Ra8; 13...Qc7 14.Nd2 Nbd7 15.Nd7 Nd7) 14.f4 (14.Qg4 Bf6 (14...Ne5 15.Be5 Bf6) 15.f4 (15.Qg3 h5) 15...Ne5= (15...c5=)) 14...Ne5 15.fe5 (15.Be5 Nd7) 15...Nd7 16.Nd2 f5 (16...Qc7 17.Nf3+=) 17.ef6= Bf6 (17...Nf6 18.c4=) 18.Qg4 Qe7 19.Bf6 (19.Nf3 e5=) 19...Rf6 (19...Nf6 20.Qg3=) 20.Nf3 h6 (20...e5 21.Ra1=) 21.Rb1 Qd6 22.Rb7 Rf7 23.Qh5 (23.Ra7 Qb8 24.Ra1 Rf6=) 23...Ne5 24.Rf7 Nf7 25.Qg6 c5 (25...Ne5 26.Ne5 Qe5 27.Kf2=) 26.d4 cd4 27.ed4 Qe7 28.Qd3 Qf6 29.c4 dc4 30.Qc4 Kh7 31.Qc2 Qg6 32.Qc5 Qe4 33.Kf2 Ng5?? 34.Qg5+– Qf3 35.Kf3 hg5 36.Ke4 Kg6 37.Ke5 Kf7 38.g3 Ke7 39.h3 Kf7 40.Kd6 Kf6 41.g4 g6 42.Kc6 Ke7 43.Kc7 Kf6 44.Kd6 Kf7 45.Kd7 Kf6 46.Ke8 e5 47.d5 e4 48.d6 e3 49.d7 1–0. Marre – gregxy, zagraj.pl, 2003.

7.a4 c6 8.Be2 Be7 9.0–0 0–0 10.Nc3 Na6 11.Ne5 Bb4 12.d4 Nc7 (12...Qa5!? 13.Qe1 Rfd8=) 13.Qd3+= Ra7 14.Ba3 (14.h4!?+=) 14...Ba3= 15.Ra3 b5 (better is 15...Nfe8!?=) 16.Rb1+/– Qa8 17.h3 ba4 18.Rba1 Qd8 19.Ra4 Ra4 20.Na4 Qa8 (20...Ne4!? 21.Bf3 Ng5+/–) 21.Qd1+– Be8 22.Nc5 Qb8 23.c4 (23.Qd3 Qb2 24.Ra5 Qc1 25.Qd1 Qd1 26.Bd1 Ne4+/–) 23...dc4? (better is 23...Ne4!? 24.Ne4 de4+/–) 24.Bc4+– Ncd5 25.Qd2 Ne7 26.Bd3 Qc7 27.Qc2 g6 28.Rb1 Kg7 (28...Nf5 29.Qc1+–) 29.Rb7 Qd8 30.Qb2 Kg8 31.e4 Nc8 32.Qb4 Nd6 33.Rb8 Qe7 34.Nb7 Nc8 35.Qe7 Ne7 36.Nd6 Kg7 (36...g5 37.Bc4+–) 37.Ng4 Neg8 38.Nf6 Nf6 (38...Nf6 39.e5 Nd5 40.Ne8 Kh8+–). Hanison,Bernard – Hansen,Bjarne G, corr 3GMM–17, 1995.

7.a4 Bd6 8.0–0 =+.

7.a4 Be7 8.0–0 Bb5 9.ab5 Ra1 10.Ba1 Nbd7 11.c4 (11.Bf6 Nf6 12.Qe2 0–0=) 11...dc4 12.Qc2 0–0 13.Qc4 Nb6 14.Qc2 Nfd5 (14...Qd7 15.Bf6 Bf6 16.d4=) 15.Rc1 (15.Bd4 Qd7=) 15...Qd7 16.Nc3 Nc3 (16...Nb4 17.Qe4=) 17.Qc3 f6 18.Qb3 (18.Qc7?? Rc8 19.Qc8 Nc8–+) 18...Kh8 (18...Ra8 19.Bd4=) 19.Bd4 (19.e4 Ra8=) 19...Nd5= 20.Bc5 Bc5 21.Rc5 Ra8 22.g3 b6 23.Rc6 e5 24.Kg2 Rd8 (24...e4 25.Nd4 Re8 26.f3=) 25.Qc4+= Qf5 (25...Re8 26.d3+=) 26.d3 (26.h3!? e4 27.Nd4+=) 26...Qd7 27.h3 Rc8 28.e4 Ne7 29.Qf7 Rd8 30.Rc3+= Nc8 31.Rc7 Qf7 32.Rf7 Nd6 33.Re7 Nb5 34.Rb7+= Kg8 35.Rb6 Nc7 36.Rc6 Nb5 37.Rc5 Na3 38.Ne1+– Nb1 39.Rc2 Rb8 40.Kf1 Rb7 41.Ke2 Na3+/– 42.Ra2 Nb5 43.Ke3 Nd4 44.f4 Kf7 45.Nf3 Nf3 46.Kf3 h5 47.Ra5 Rb3 48.Ke3+– h4 49.fe5 hg3 50.ef6 gf6 51.Ra2 Ke6 52.Rg2 Rb1 53.Rg3 Rh1 54.Kf4 Rf1 55.Rf3 Rg1 56.d4 Rd1 57.d5 Kf7 58.Ke3 Ke7 59.Ke2 Rd4 60.Rd3 Ra4 61.Kf3 Ra1 62.h4 Rh1 63.d6 Kd7 64.Kg4 Rg1 65.Kf5 Rh1 66.Kf6 Rh4 67.e5 Rf4 68.Kg6 Rf8 69.Kg7 Re8 70.Re3 Ke6 71.Rd3 Kd7 72.Rd5 Ke6 73.d7 Rd8 74.Rd2 Ke7 75.Rd6 Ra8 76.d8Q! (76.d8Q Rd8 77.Rd8 Kd8 78.Kf7+–) 1–0. Taksrud,Vidar – Lie,Espen, Norway, 2001.

7.Bd7 Nbd7 8.0–0 Bd6 9.d4 0–0 10.Nbd2 Nb6 11.Ne5 Na4 12.Bc1 Nc3 13.Qf3 Na2 14.c4 Nc1 15.Rfc1 Ra1 16.Ra1 c5 17.h3 b5 18.Nc6 Qb6 19.dc5 Qc5 20.cb5 Qb5 21.Nd4 Qd3 22.Rd1 Rc8 23.N2b3 Qg6 24.Qe2 Ne4 25.Nb5 Be5 26.N3d4 h6 27.Ra1 Kh7 28.Rd1 Bf6 29.Qf3 Bh4 30.g3 Bf6 31.Ra1 e5 32.Ne2 Rc2 33.Re1 Ng5 34.Qd5 Nh3 35.Kg2 Ng5 36.Nec3 e4 37.Qc4 Qf5 38.Qe2 Qh3 39.Kg1 Re2 40.Rd1 Nf3 0–1. COMP – COMP, 1994.

7.Be2 c5 8.0–0 Nc6 9.d3 Bd6 10.Nc3 0–0 11.Nb5 Bb8 12.a4 e5 13.c4 e4 (Better is 13...dc4!? 14.dc4 Qe7=+) 14.Bf6+= Qf6 15.de4 de4 16.Qd7 ef3 17.Bf3 Ne5 (17...Be5!? 18.Rad1 Ra4+/–) 18.Qb7 Nc4? (Better is 18...Ra5+/–) 19.Qa8+– Bh2 20.Kh2 Ra8 21.Ba8 h5 22.Kg1 Qg5 23.Rfd1 h4 24.Rd5 Qg6 25.Rc5 Nd2 26.Bd5 h3 27.Rc7 Kh7 28.Nc3 hg2 29.Rd1 Nf1 30.Bg2 Ne3 31.fe3 Qb6 32.Be4 Kh6 33.Rc6 1–0. marre (2105) – IgorGL (1935), GameColony.com, 2003.

7.Be2 c5 8.Nc3 Nc6 9.a4 Bd6 (9...c4 10.0–0 (10.Nb5 Bc5 11.0–0 0–0 12.d3 cd3 13.cd3 Qb6 14.Bf6 gf6 15.d4; 10.Qb1 Bb4 11.0–0 Qe7 12.d3 cd3 13.cd3 0–0 14.Rc1 Rfc8 15.d4) 10...Bc5 11.Nb5 0–0 12.d3 cd3 13.cd3 Qb6 14.Bf6 gf6 15.d4; 9...Qb6 10.Rb1 c4 11.Nb5 Qd8 12.0–0 Ra4 13.d3 cd3 14.cd3 Ra6 15.Qc2; 9...Be7 10.0–0 (10.Nb5 h6 11.0–0 0–0 12.d3 Qa5 13.Qd2 Qd2 14.Nd2 e5 15.Nc7; 10.d3 0–0 11.0–0 e5 12.Nb5 d4 13.Qd2 Nd5 14.c4 Ndb4 15.g3; 10.Qb1 0–0 11.0–0 Qa5 12.Nb5 c4 13.d3 cd3 14.cd3 Rfc8 15.Rc1; 10.h3 0–0 11.0–0 Ne4 12.Qc1 f5 13.d3 Nc3 14.Bc3 Qb6 15.Qb1; 10.g3 0–0 11.0–0 Qb6 12.Nb5 c4 13.d3 cd3 14.cd3 Rfc8 15.Bc3) 10...0–0 11.Nb5 Qb6 12.Ne5 c4 13.d3 Ne5 14.Be5 Bb5 15.ab5; 9...h6 10.h3 (10.0–0 Be7 11.Nb5 0–0 12.h3 Qb6 13.c4 Rfd8 14.Qb1 Ne4 15.d3; 10.Nb5 Be7 11.0–0 0–0 12.h3 Nb4 13.Ne5 Ne4 14.d3 Nd6 15.c4; 10.d3 Be7 11.0–0 0–0 12.Nb5 Qb6 13.Qd2 Ra6 14.c3 Rd8 15.Rfd1; 10.Qb1 Be7 11.0–0 0–0 12.Nb5 c4 13.d3 cd3 14.cd3 Qa5 15.Rc1; 10.g3 c4 11.0–0 Bc5 12.d3 cd3 13.cd3 0–0 14.Nb5 Qe7 15.Rc1) 10...Be7 11.0–0 0–0 12.Nb5 Qb6 13.c4 Rfd8 14.Qb1 Ne4 15.d3) 10.0–0 (10.Nb5 Be7 11.0–0 0–0 12.d3 Qa5 13.h3 h6 14.c4 dc4 15.dc4; 10.h3 0–0 11.Nb5 Be7 12.0–0 h6 13.d3 Qb8 14.Qd2 e5 15.Nh2) 10...0–0 11.d4 (11.Nb5 Be7 12.d3 Qa5 13.h3 Rfd8 14.Bc3 Nb4 15.Ne5) 11...c4 (11...cd4 12.ed4 Qb6 13.Ba3 Nb4 14.Ne5 Bc6 15.Nb5) 12.Ba3 (12.Nb5 Be7 13.Ne5 Ne5 14.de5 Ne4 15.Bd4) 12...Qc7?? (better is 12...Ba3 13.Ra3 Qe7+= 14.Ra1 Ra6 15.Ne5) 13.Nb5+– (13.Nb5 Bh2 14.Nh2+–) 1–0. Woschkat,Karl_Heinz – Burnett_Hall,Oliver, IECG, 1998.

5.Nf3= Bd6

6.a4 0–0 7.Bd3 Re8 8.c4 (8.Ne5 Be5 9.Be5 Nbd7=+) 8...e5 9.c5 Bc5 10.Be5 Bg4 11.Qc2 (11.Bb2 ab5 12.ab5 Ra1 13.Ba1 d4–/+) 11...Bf3 12.Qc5 (12.gf3!? Be3! 13.de3 Re5 14.Nc3–+) 12...Nbd7–+ (Worse is12...Re5 13.gf3 Nbd7 14.Qb4–/+) 13.Bf6 Qf6 (Worse is13...gf6 14.Qc3 Be4 15.ba6 ba6 16.0–0+=) 14.Qc3 d4 15.Qc2 de3 16.Bh7 Kh8 17.de3 Bg2 18.Rg1 Qa1 19.Rg2 ab5 20.Rg3 Qa4 21.Qc7 Rac8 22.Qd7 Red8 23.Rh3 Qb4 24.Ke2 Rd7 25.Bf5 0–1. COMP – COMP, 2002.

6.Nc3 e5 7.ba6 ba6 8.Be2 c5 9.d4 cd4 10.ed4 e4 11.Ne5 Nbd7 12.Ng4 (12.f4 ef3 13.Nf3 Qa5=+) 12...Ng4–/+ 13.Bg4 Nf6 14.Bc8 Rc8 15.Ne2 0–0 16.Qd2 (16.Bc1 Qc7–/+) 16...Qc7 (16...Re8 17.h4–+) 17.c3 Rb8 18.h3 e3–+ 19.fe3 Ne4 20.Qc1 Bg3 21.Kf1 Rb6 22.Ba3 Qc4 23.Qc2 Nc3!! 24.Be7 Rfb8 25.Qc3 Rb1 26.Qe1 Be1 27.Bb4 R8b4 28.Rb1 Rb1 29.g3 Qd3 30.Rg1 Qe4 31.Nc1 Qf3 32.Ke1 Qe3 33.Kf1 Rb2 34.Nb3 Qe2 0–1. COMP – COMP, 2002.

6.c4 0–0 7.cd5 Nd5 8.Qa4 f6 9.Bd3 c6 10.Qe4 f5 11.Qd4 Qc7 12.ba6 Na6 13.a3 Nc5 14.Bc2 e5 15.Qc4 b5 16.Qe2 e4 17.Nd4 Na4 18.Ba4 Ra4 19.g3 Nb6 20.Nc3 Ra6 21.a4 b4 22.Ne4 fe4 23.a5 Qa7 24.Nc6 Qb7 25.Nd4 Nd5 26.0–0 Bh3 27.Rfc1 Nc7 28.Qc4 Qd5 29.Qd5 Nd5 30.Nb5 Be7 31.Nc7 Nc7 32.Rc7 Bf6 33.Bf6 Raf6 34.f4 ef3 0–1. Bonetti,Shane – khadem (2220), ICC, 2002.

6.d4 0–0 7.Nbd2 Ne4 (7...ab5 8.Bb5 b6 9.0–0=+) 8.Ne4= de4 9.Nd2 f5 10.c4 b6 11.Be2 Qg5 12.0–0 Rf6 13.g3 Rg6 14.a4 Nd7 15.Qc2 a5 (15...e5 16.a5=) 16.Nb3+= Qh4 17.Rfd1 Be7 18.c5 Qh3 19.Bf1 Qg4 20.Be2 (20.h3 Qh5+=) 20...Qh3 21.Bf1 Qh5 22.Be2 Qh3 23.Bf1 Qh5 24.Be2 (24.Qe2 Qh6+=) ½–½. Plock,Joerg – Hohlstein,Walter, RSM2003 remoteschach.de, 2003.

6.d4 ab5 7.Bb5 Bd7 8.Nc3 Bb5 9.Nb5 Nc6 10.0–0 0–0 11.Re1 Ne4 12.c3 (12.Ne5!?–/+) 12...Na5 13.Ne5 (13.Nd6!? Qd6 14.Ne5 f6–/+) 13...Be5–+ 14.de5 Nc4 15.Qc2 c6 16.Nd4 Ne5 17.f3 Nd6 18.f4 (18.a4 c5 19.Nb5 Nb5 20.ab5 Qb6–+) 18...Nec4 19.Qb3 Ra6 20.Rf1 (20.Qc2–+) 20...Rb6 21.Qa4 (21.Bc1 Rb3 22.ab3 Na5–+) 21...Rb2 22.Rab1 Rb1 23.Rb1 Qa8 24.Qa8 Ra8 0–1. Tiedemann,Joern (2125) – Boxberg,Marc (2045), RS–Pyramide remoteschach.de, 2006.

6.Be2 ab5 7.Bb5 Bd7 (7...Nbd7 8.Bd7 Bd7 9.Be5+=) 8.Nc3 (8.Be2 0–0+=) 8...c6 9.Be2 e5 10.0–0 e4 (10...Qc7 11.h3+=) 11.Nd4 b5 12.a3 (12.a4 b4 13.Nb1 0–0+=) 12...0–0 13.d3 (13.a4 b4 14.Nb1 Qc7+=) 13...Qc7 14.h3 Na6 15.de4 (15.Qb1 Nc5–/+) 15...de4+= 16.Bg4 (better is 16.a4!? b4 17.Nb1+=) 16...Ng4–+ 17.hg4 Nc5 18.Nf5 (18.f3 ef3 19.Qf3 Bh2 20.Kh1 Be5–+) 18...Bf5 (18...Be5 19.f4 ef3 20.Qf3–+) 19.gf5 Bh2 20.Kh1 Be5 21.Qg4 (21.Qh5 Qa5 22.Na4 Bb2 (22...Qa4?! 23.Be5 Nd7 24.f6 Ne5 25.Qe5=; 22...Na4?! 23.Be5 f6 24.Bd6–/+) 23.Nb2 Qc3–+) 21...Qa5 22.Nd1 Bb2 23.Nb2 Qc3 24.Rab1 (24.Ra2 Rfd8–+) 24...Ra3 (24...Qa3?! 25.f6 g6 26.c4–/+; 24...Qc2 25.Rfc1 Qf2 26.Rc5 Qe3 27.Rc6 Ra3 28.Nd1+=) 25.g3 (25.Nd1 Qc2 26.f6 Ne6–+) 25...Ra2 (25...Qc2?! 26.Rbc1 Qb2 27.Rc5–+) 26.Kg2 (26.Nd1 Qc2 27.Rb4–+) 26...Rb2 27.Rb2 Qb2 28.Rh1 Qc2 29.Qh4 h6 30.f6 Qe2 31.fg7 Qf3 32.Kf1 Ra8 33.Ke1 Nd3 34.Kd2 White threatens to counter with g4 34...Qf2 35.Kc3 Qb2# 0–1. Wurm,Tamas – Geiger,Walter (2065), TE.2004.P.01707, 2004.

6.ba6 b6

7.Bb5 c6 8.Be2 Ba6 9.d3 Nbd7 10.Nbd2 0–0 11.0–0 Qc7 12.c4 dc4 13.dc4 Ng4 14.h3 Nh2 15.Nh2 Bh2 16.Kh1 Bd6 17.Qc2 Nc5 18.Ne4 Ne4 19.Qe4 e5 20.Rfd1 f5 21.Qd3 Rad8 22.Qb3 c5 23.Bc3 Bb7 24.Rab1 Rb8 25.Rb2 Bc6 26.Rbd2 Rbd8 27.Qb2 Rd7 28.Rb1 Qb7 29.f3 Qa8 30.Kg1 Rfd8 31.Rdd1 e4 32.f4 Bf8 33.Rd7 Rd7 34.Kh2 Rb7 35.Be5 Ra7 36.Qb6 Ra2 37.Qc7 Ra7 38.Rb8 Rc7 39.Ra8 Ba8 40.Bc7 g6 41.g4 Kf7 42.Be5 Ke6 43.Kg3 Bc6 44.Bd1 Be7 45.h4 Bf6 46.Bf6 Kf6 47.g5 Kg7 48.Kf2 Bd7 49.Be2 h5 50.gh6 Kh6 51.Ke1 Kg7 52.Kd2 Kf8 53.Kc3 Ba4 54.Kb2 Kf7 55.Kc1 Ke6 56.Kd2 Ke7 57.Kc1 Bd7 58.Kc2 Kd6 59.Kb3 Bc8 60.Kc3 Be6 61.Kd2 Kd7 62.Kc3 Kc7 63.Kc2 Kd8 64.Kd2 Bf7 65.Kd1 Kd7 66.Kc2 Kc6 67.Kd2 Be6 68.Kc3 Bd7 69.Kc2 Be8 70.Kb3 Kd7 71.Kc3 Ke7 72.Kc2 Bc6 73.Kc3 Kf7 74.Kd2 Kf6 75.Kd1 Be8 76.Kd2 Kf7 77.Ke1 Ke7 78.Kf1 Bc6 79.Ke1 Bd7 80.Kd2 Be6 81.Kc3 Kf6 82.Bd1 Bd7 83.Bb3 Ke6 84.Bd1 Ke7 85.Be2 Kf7 86.Kb3 Ke6 87.Kc2 Be8 88.Kb2 Bf7 ½–½. bambinik – df_2x1Ghz_1.5GB, internet, 2001.

7.Be2 Ba6 8.0–0 0–0 9.h3 Qe7 10.Nd4 e5 (11.Nf5 Qe6 12.Nd6 Be2 13.Qe2 Qd6=+). Goesmann,Stefan (1910) – Hoch,Hubertus (2165), RSX9E – A00 – Sokolsky–2, 2004.

6.Nc3 0–0

7.a4 e5 8.Be2 e4 9.Nd4 c5 10.bc6 Nc6 11.Nc6 bc6 12.0–0 Qe7 13.d4 ed3 14.Qd3 a5 15.Rfd1 Qe5 16.g3 Bf5 17.Qd2 Rfb8 18.Rab1 Rb2 19.Rb2 Bb4 20.Rb4 ab4 21.Na2 c5 (worse is 21...Ra4 22.Nb4 Qd6 23.Rb1+=) 22.Bf3 Ra4 23.Nc1 h6 24.Nd3 Bd3 25.Qd3 c4 26.Qd4 Qd4 27.ed4 Ra2 28.Rc1 Ra3 29.Bd1 Ne4 30.Kf1 Nc3 31.Bf3 Kf8 32.Ke1 Ke7 33.Kd2 Kd6 34.Re1 Ra2 35.g4 Nb5 36.Re5 Rc2!! 37.Kc2 (37.Kd1 b3 38.Rd5 Kc6 39.Rf5 Kb6 40.Rf7 Rf2 41.Rb7 Ka6 42.Rb5 Kb5 43.Bd5–+) 37…Nd4 (37...Nd4 38.Kc1 Ke5–+) 0–1. Sanders,Timothy – Malichev,Ivan (1980), IECG, 2009.

7.Be2 e5 8.0–0 e4 9.Nd4 c5 10.bc6 Nc6 11.Nc6 bc6 12.Rb1 Qc7 13.h3 Rb8 14.f3 Nh5 15.Re1 Bh2 16.Kh1 Qg3 (Better is 16...Be5–/+) 17.Bf1? (17.fe4 Bh3 18.Rg1–+) 17...Bh3!–+ 18.Ne2 (18.gh3 Rb2) 18...Bg2!! 19.Bg2 Qh4 20.fe4 de4 21.Bg7 Kg7 0–1. kamret (2135) – peacewhite (2160), GameColony.com, 2003.

5.Nf3= Bd7

6.a4 Bd6

7.c4 0–0 8.Nc3 c6 9.Qb3 dc4 10.Bc4 cb5 11.ab5 Qc7 12.b6 Qd8 13.0–0 Bc6 14.Be2 Nd5 15.Nd5 Bd5 (worse is 15...ed5 16.Nd4 Re8 17.Nf5+=) 16.Qc3 Qb6?? (better is 16...f6+=) 17.Qg7# 1–0. Baer,Cy (1895) – Markoja,Johann (2070), RSS3D–62 remoteschach.de, 2007.

7.c4 0–0+= 8.d4 dc4 9.Nc3 Nd5 (9...Re8 10.Bc4 c6 11.0–0=) 10.Bc4 Bb4 (10...ab5 11.ab5 Ra1 12.Qa1=) 11.Bd5 (11.Qb3 Bc3 12.Bc3 Nc3 13.Qc3 ab5 14.ab5 Ra1 15.Qa1 c6=) 11...ed5 12.Qb3 Bc3 13.Bc3 ab5 14.ab5 Ra1 15.Ba1 c6 (15...Bg4 16.Ne5 Bf5 17.0–0=) ½–½. Woschkat,Karl_Heinz – Roth,Ralf, H–Klasse BdF, 1997.

7.c4 dc4 8.Bc4 ab5 9.ab5 Ra1 10.Ba1 c6 11.Bf6 Qf6 12.b6 Qd8 13.Qb3 Bc5 (13...Bc8 14.Nc3=) 14.Qc3 (14.d4!? Bb6 15.0–0=) 14...Qb6 15.0–0 0–0 16.d4 Be7 17.Nbd2 Qd8 18.Ne5 (18.Ra1 Bc8=) 18...Bc8+= 19.Rb1 Nd7 20.Nd3 (20.Nd7 Qd7 21.Bd3 b5+=) 20...b5–/+ 21.Bb3 Qc7 22.Ne4 Bb7 23.Nec5 Nc5 24.Nc5 Ra8 25.Nb7 Qb7 26.Rc1 Ra6 27.f4 (27.Bc2 Ra3 28.Qb2 Ra8+=) 27...Qd7 28.Ra1 (28.Bc2 Ra3 29.Qe1 Qa7–/+) 28...Ra1–+ 29.Qa1 c5 30.dc5? (better is 30.Qc3–+) 30...Qd2 31.Qa8 (31.Kh1 Qe3 32.Bc2 Bc5–+) 31...Bf8 32.Ba2 Qe1# 0–1. Baer,Cy (1895) – Markoja,Johann (2070), RSS4D easy–37, 2007.

7.Be2 0–0 =.

6.ba6 Na6

7.c4 Nb4 8.Nc3= dc4 (8...Be7 9.a3 Nc6 10.cd5 ed5 11.Bb5=) 9.Bc4 Bd6 10.0–0 0–0 11.d4 Nbd5 12.Qe2 (12.Ne5 Nc3 13.Bc3 Nd5=) 12...Nc3 13.Bc3 Bc6 14.Rfb1 Qe7 15.Bb5 (15.Ne5 Be4 16.Rb3 Nd5=) 15...Ne4 (15...Bd5 16.Bd3 Ne4 17.Bb2+=) 16.Be1= Bd5 (16...Bb5 17.Qb5 Ra7 18.Bb4=) 17.Bc4 (17.Ne5 Nf6=) 17...Ra7+= 18.Nd2? (better is 18.Ne5+=) 18...Nc3–+ 19.Qd3 Nb1 20.Qb1 Qh4 21.g3 (21.h3 Rfa8–+) 21...Qh5 22.e4 Bc4 23.Nc4 Be7 24.Qc2 (24.Ne3 Qf3–+) 24...Rfa8 (24...Rd8 25.Bc3–+) 25.Kg2 (25.f4 b5 26.Na5 Ba3–+ (26...Ra5?! 27.Ba5 c5 28.Bb6+=)) 25...Bf6 (25...Ra4 26.Ne3 c5 27.Nc4–+) 26.Bc3 (26.e5 Be7–+) 26...Ra4 27.Ne3 Qg6 (worse is 27...Bd4 28.Bd4 Rd4 29.Qc7–+) 28.f4 (28.f3 Bd4 29.Bd4 Rd4–+) 28...Bd4 29.Bd4 Rd4 0–1. VELEROFONTIS – bernalius, playchess.de, 2001.

7.c4 Be7 8.Be5 +=.

7.Ne5 Ba4 8.Nc3 Nc5 (8...Bc6 9.Nc6 bc6 10.Be2=) 9.Na4+= Ra4 (Better is 9...Na4!? 10.Bb5 c6 11.Nc6 bc6 12.Bf6 Qd7 13.Ba4 Ra4+=) 10.Bb5+– c6 11.Ba4 Na4 12.Bd4 Ne4 13.Rb1 c5 14.Rb7 cd4 15.Qe2 (15.ed4 Qa8 16.Qb1 Qa6 17.Rb8 Ke7 18.Re8 Kf6+–; 15.Nf7?! Qa8 16.Nh8 Qb7 17.ed4 Qb2+=; 15.Rf7?! de3 16.fe3 Qh4 17.g3 Qg5=) 15...Nd6 (15...Bd6 16.Nf7 de3 17.Nd8 (17.Nh8 ed2 18.Qd2 Nd2–+) 17...ed2 18.Qd2 Nd2 19.Nf7+– (19.Kd2?! Kd8 20.Rg7 Rf8=; 19.Ne6?! Ne4+–)) 16.Qa6 Nc5 (16...Nb6 17.Nc6 Nb7 18.Nd8 Nd8 19.Qb6 de3 20.Qb5 Ke7 21.de3 h5+–) 17.Qc6 Nd7 (17...Qd7 18.Rd7 Nd3 19.cd3 Be7 20.Rd8 Kd8 21.Qd7) 18.Rd7 (18.Qd7?! Qd7 19.Rd7 f6+=) 18...Qc8 19.Rc7 Kd8 20.Nf7 (20…Nf7 21.Rc8 Ke7 22.Re8 Kf6 23.Qe6 Kg5 24.h4 Kh5 25.g4#) 1–0. marekt (2445) – NJUSA (1685), ChessWorld.net, 2003.

7.Ne5 c5 8.Nd7 Nd7 9.Nc3 c4 10.d3 cd3 11.cd3 Be7 12.Rc1 0–0 13.Be2 Nb4 14.a3 Nc6 15.Ra1 Qc7 16.0–0 Bd6 17.g3 f5 18.Nb5 Qb8 19.Qd2 Be7 20.Rfc1 Nf6 21.Rc2 Ne5 (Better is 21...Qd8=) 22.Nc7–/+ Neg4 23.Na8 Qa8 24.Rac1 Ba3?? (24...Bd6+–) 25.Ra1 Bb2 (25...Qe8 26.Ra3 Qh5+–) 26.Ra8 Ra8 27.Rb2 Ra1 28.Kg2 (28...Ra7 29.Qc2+–) 1–0. Bonetti,Shane – tompawa, ICC, 2002.

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

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