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1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7

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6.a4 Nb6 7.Qb3 (7.d3 dc4 8.a5 Nbd7=) 7...dc4 (7...Bd6 8.a5 Nc4 9.Bc4 dc4 10.Qc4=+) 8.Bc4 Nc4 9.Qc4 Qd5 10.Qd5 Nd5 11.Nf3 b6 (11...Nb4 12.0–0=+) 12.0–0 Bb7 (12...a6 13.Na3=+) 13.Ne5 (13.a5 ba5 14.Ra5 Nb6=) 13...f6=+ 14.Nc4 Nb4 15.Nc3 Nd3 (15...Bd5 16.Nd5 ed5 17.Na3=+) 16.Ba3 Bd5 (16...0–0–0 17.a5 ba5 18.Na5=+) 17.Nb2 Nb2 18.Bb2 (18.Nd5 0–0–0 19.Nf4 e5 (< 19...Na4 20.Bc1+–) 20.Bb2 ef4=) 18...Bc4 (18...Bb3 19.f4=+) 19.Rfe1 (19.Rfc1 Rd8–/+) 19...Rd8–/+ 20.Nb1 Bd3 21.Bc3 e5 22.Na3 c4 23.Ra2 Bd6 24.Nc2 0–0 25.Nb4 Be4 26.a5 Bc5 27.Na6 Bd6 28.ab6 ab6=+ 29.Nb4 Ra8 30.Rea1 Ra2 31.Ra2 Ra8 32.Ra8 Ba8 33.Na6 Kf7 34.f3 e4 35.f4=+ Bb7 36.Kf2 Ke6 37.Bd4 Bc8 38.Bb6 Bd7 39.Bc5 Bb5–/+ 40.Bd6 Ba6 41.Bb4 (41.Bf8 g6=+) ½–½. Zylla,Johannes – Sadohin, BS–MK Kreisliga, 1995.

6.a4 e5 7.cd5 Nd5 8.Qb3 N5f6 9.Bc4 Qe7 10.Nf3 h6 11.d3 e4 12.de4 Ne4 13.a5 Ndf6 14.a6 (14.0–0 Nd6 15.Bf6 Qf6+=) 14...ba6 15.ba6 Nd6 16.Ne5 (16.0–0 Nc4 17.Qa4 Nd7 18.Qc4 Rb8=) 16...Nc4= 17.Qc4 (17.Qa4 Nd7 18.Nc4 Rb8=) 17...Bd7 (17...Rb8 18.Nc6 Be6 19.Qc1+– (19.Ne7?! Bc4 20.Bf6 gf6=)) 18.Qb3 (18.Nd7 Nd7 19.Nc3 Rb8+=) 18...c4 (18...Rd8!?=) 19.Qb7 Rc8 (19...Qb4 20.Bc3 Qb7 21.ab7 Rb8 22.Ra7 Bc5+/–) 20.0–0 (20.Qa7 Bf5 21.Qe7 Be7+–) 20...c3 (better is 20...Bf5=+) 21.Nd7+/– Qd7 22.Nc3 Rc7 23.Qb8 Rc8 24.Qe5 Be7 25.Rfd1 Qc7 26.Qc7 Rc7 27.Nb5 Rc5 28.Na7 0–0 (28...Rc2 29.Bd4+–) 29.Bd4 (29.Ba3 Rc7 30.Nb5 Rd8 31.Rd8 Bd8 32.Nc7 Nd7+–) 29...Rc2 30.Rdc1 Rd2 (30...Rc1 31.Rc1 Rb8 32.Nc6+–) 31.Nc8 Rd1 (31...Re8+–) 32.Rd1 Rc8 1–0. Sundin,Thommy – Johansson,Mattias, Hudiksvall, 1989.

6.Qb3 a6 A) 7.Na3 ab5 (7...Bd6 8.Nf3 0–0 9.Be2 Nb6 10.0–0 ab5 11.Nb5 dc4 12.Bc4 Nc4 13.Qc4=) 8.Nb5 Be7 9.Nf3 0–0 10.Rb1 Re8 11.Bc3 Nb6 12.d3 dc4 13.dc4+=; B) 7.Nf3 Be7 (7...ab5 8.cd5 c4 9.Qb5 ed5 10.d3 Ra5 11.Bf6 Qf6 12.Qa5 Qa1 13.Nfd2=) 8.Be2 ab5 9.cd5 ed5 10.Bb5 0–0 11.d3 Re8 12.0–0 Qb6 13.Nc3=.

6.Qb3 b6 7.Nf3 (7.Be2 Bd6 (7...dc4 8.Bc4 Bb7 9.Nf3 Bd6 10.d3 Bf3 11.gf3 Ne5 12.Nd2 0–0 13.Rd1+=) 8.Nf3 dc4 9.Qc4 a6 10.Qd3 Qe7 11.Nc3 0–0 12.Ne4 Ne4 13.Qe4+=) 7...Be7 (7...Bb7 8.Be2 dc4 9.Qc4 a6 10.Qf4 Be7 11.0–0 ab5 12.Bb5 0–0 13.d3+=; 7...Bd6 8.Be2 Bb7 9.cd5 Bd5 10.Qc2 0–0 11.Nc3 Bb7 12.0–0 Qc7 13.Rfc1=) 8.d4 (8.Be2 dc4 9.Qc4 0–0 10.0–0 Bb7 11.Qf4 a6 12.ba6 Ba6 13.Ba6=) 8...0–0 (8...a6 9.Nc3 cd4 10.Nd4 Nc5 11.Qd1 dc4 12.Bc4 0–0 13.Nc6=) 9.Nbd2 (9.Bd3 Bd6 10.0–0 cd4 11.ed4 dc4 12.Bc4 Bb7 13.Be6+=) 9...Bb7 (9...Bd6 10.Bd3 cd4 11.ed4 Bb7 12.0–0 Rc8 13.Rfc1+=) 10.a4 (10.Be2 a6 11.0–0 ab5 12.Qb5 Ra5 13.Qb3=) 10...dc4 (10...Bd6 11.cd5 (11.a5+= ba5 12.Qa3 a6 13.Qa5+=) 11...Bd5 12.Bc4 Rc8 13.0–0=; 10...cd4 11.Bd4 Nc5 12.Qc3 a5 13.Be2+=) 11.Bc4= Ne4 (11...cd4 12.Bd4 Rc8 13.0–0=) 12.0–0 (12.Ne4 Be4 13.Rd1=) 12...Ndf6 (12...Nd2 13.Nd2 Bf6 14.Rfd1=) 13.Rfd1 Nd2 14.Nd2 Ne4? (better is 14...cd4 15.Bd4 Bd6+=) 15.Ne4+– Be4 16.dc5 Qc7 17.c6 Rfd8 18.Be6! Bd6 (18...fe6 19.Rd8 Double attack (19.Qc4 Decoy)) 19.h3 Bh2 (19...a6 20.Bd7 ab5 21.Qc3+–) 20.Kh1 Bg2 (20...Bd6+–) 21.Kg2 fe6 22.Qe6 Kh8 23.Rd7 Rd7 24.cd7 h6 (24...Rg8+–) 25.Qh6 1–0. katchum (2570) – alaudati (2435), net–chess.com, 2014.

6.Qb3 Nb6 A) 7.d3 Bd6 (7...a6 8.Na3 Bd6 9.Nf3 dc4 10.dc4 Nbd7 11.Rd1 Qa5 12.Bc3 Qb6 13.Bd3+=) 8.Nf3 a6 9.Be2 ab5 10.cb5 0–0 11.0–0 Nbd7 12.Nc3 Qb6 13.Rfc1+=; B) 7.Nf3 Bd6 (7...dc4 8.Bc4 Bd6 9.0–0 0–0 10.d4 Nc4 11.Qc4 cd4 12.Bd4 Qe7 13.Be5=) 8.d4 cd4 9.Bd4 dc4 10.Bc4 Nc4 11.Qc4 Bd7 12.0–0 Qe7 13.Be5=.

6.Qb3 Rb8 A) 7.Nf3 Bd6 (7...Nb6 8.d4 dc4 9.Bc4 Nc4 10.Qc4 Bd7 11.dc5 Rc8 12.Bd4 Bc5 13.Bc5=) 8.Be2 dc4 9.Qc4 0–0 10.0–0 e5 11.d3 Re8 12.Rc1 Nb6 13.Qh4=; B) 7.Be2 Bd6 (7...dc4 8.Bc4 Nb6 9.Nf3 Nc4 10.Qc4 b6 11.e4 Ra8 12.Be5 a6 13.Nc3=) 8.Nf3 dc4 9.Qc4 0–0 10.0–0 e5 11.d3 Nb6 12.Qh4 Re8 13.Nc3=.

6.Qb3 Bd6 A) 7.d3 a6 (7...0–0 8.Nf3 dc4 9.dc4 e5 10.Nc3 e4 11.Nd2 Re8 12.Rd1 Be5 13.Nd5=) 8.Nf3 ab5 9.Qb5 Ra6 10.Bc3 Rb6 11.Qa4 0–0 12.Be2 e5 13.0–0+=; B) 7.Nf3 Nb6 (7...0–0 8.Nc3 Nb6 9.d3 a5 10.Na4 Na4 11.Qa4 Re8 12.Be2 dc4 13.dc4=) 8.d4 Nfd7 9.Nbd2 0–0 10.Rd1 a6 11.cd5 ed5 12.dc5 Nc5 13.Qc3=.

6.Qb3 Be7 A) 7.Nf3 0–0 (7...Nb6 8.d4 dc4 9.Bc4 Nc4 10.Qc4 Bd7 11.0–0 Rc8 12.a4 0–0 13.Rd1=) 8.Be2 dc4 9.Qc4 a6 10.0–0 ab5 11.Qb5 b6 12.d3 Bb7 13.Nc3+=; B) 7.Be2 dc4 (7...a6 8.Nf3 ab5 9.cd5 ed5 10.Bb5 0–0 11.d3 Re8 12.0–0 Qb6 13.a4=) 8.Qc4 0–0 9.Nf3 a6 10.0–0 ab5 11.Qb5 b6 12.d3 Ba6 13.Qb3=.

6.Nc3 Nb6 7.d3 Be7 8.a4 a5 9.h3 0–0 10.Nf3 dc4 11.dc4 Nbd7 12.Bd3 b6 13.0–0 Bb7 14.Re1 Qc7 15.e4 Rad8 16.Qc2 Bd6 17.Rad1 Ne5 18.Ne5 Be5 19.Qe2 Bd4 20.Qd2 Qe5 21.Rb1 Rd7 22.Qc1? (22.Rbd1 Rfd8–/+) 22...Rfd8 (22...Bf2 23.Kf2 Rd3 24.Re3 Qf4 25.Ke2–+) 23.Nd5 (23.Qd2 Nh5 24.Bf1 f6–/+) 23...ed5–+ (23...Nd5?! 24.ed5 Qg3 25.Bh7 Kh7 26.Bd4+=) 24.ed5 Bb2 25.Rb2 Qb8 26.Bf5 Rc7 27.Rbe2 Kf8 28.Qf4 Rcc8 29.Qh4= Re8 30.Bh7 Nh7 31.Qh7+/– f6 32.Qd3 Re2+= 33.Re2 Re8 34.Re6 Kf7 35.Re8 Qe8+= 36.Qg3 Qe1 37.Kh2 Qe5 38.f4 Qd4–/+ 39.Qg4 Qe4 40.Qd7+= Qe7 41.Qf5 g6 42.Qd3 Bc8 43.g4 Qd6 44.Kg3 Kg7 45.h4 Qd7 46.Qe2 Kf7 47.Qf3 Qe7–/+ 48.Kf2 f5 49.h5? Qh4 50.Qg3–/+ Qg3 51.Kg3 fg4 52.h6 Kf6 53.Kh4 Bf5 54.d6 g5! 55.fg5 Ke6 56.g6 Bg6 57.Kg4 Kd6 58.Kf4? Ke6 59.Kg5 Bh7 60.Kf4 Kf6 61.Kg4 Ke5 62.Kg5 Kd4 63.Kf6 Kc4 64.Ke6 Kb4 65.Kd6 c4 66.Kc6 c3 67.Kb6 c2 (67...c2 68.Kc6 c1Q 69.Kd5 Qd2 70.Ke6 Qh6 71.Kf7 Ka4 72.b6 Qb6 73.Ke7 Kb4 74.Kf7 a4 75.Kg7 Qg6 76.Kf8 a3 77.Ke7 a2 78.Kd7 Qf7 79.Kd6 a1Q 80.Kc6 Qaf6#) 0–1. Peter,Falco – Noble,Daniel, Rhein Main op, 2007.

6.d3 a6 7.a4 =+.

6.d3 b6 7.Nf3= Bb7 8.Nbd2 Bd6 9.Be2 Qc7 10.h3 h6 (10...0–0 11.cd5 ed5 12.0–0=+) 11.Qc2 0–0 12.0–0 Rfe8 13.Rfe1 Rad8 14.a4 Ne5 15.Ne5 Be5 16.Be5 Qe5 17.Bf3 Qc7 18.cd5 ed5 19.d4 c4 20.Ra3 Qd7 21.Nf1 g6 (21...Ra8 22.Rc3=) 22.Ng3+= h5 23.Ne2 g5 (Black is in command) 24.Nc3 g4 25.hg4 hg4 26.Bd1 Kg7 27.g3 Rh8 28.Kf1 (28.Kg2!?=) 28...Rh2–/+ 29.Ke2 (29.Ra1 Rdh8 30.Ke2 Rf2 31.Kf2 Rh2 32.Kg1 Rc2 33.Bc2 Qd6–+) 29...Qd6 30.Ra2 Qg3 31.Rf1 Re8 32.Ke1 Re3 33.Ne2?? (33.Be2 Qh4 34.Qd2–+) 33...Qh4 (33...Rf2 34.Rf2 Ne4 35.Qe4 de4 36.Kf1 Qh3 37.Kg1–+) 34.Kd2 (34.Qc1 Re6 35.Qf4–+) 34...Rd3 (< 34...Rf2 35.Rf2 Ne4 36.Kc1 Qf2 37.a5–+) 35.Ke1 (35.Kc1 Qg5 36.Kb1–+) 35...Ne4 36.Ng1 Re3 37.Be2 Rf2 38.Kd1 (38.Qe4 Rfe2 39.Kd1 Re1 40.Kd2 Qh2 41.Qg2 Qg2 42.Rf2 Qf2 43.Ne2 Qe2) 38…Rf1 (39.Bf1 Qe1#) 0–1. Bartle,Georg – Dollmann,Guenter, Baden–ch HT1, 2004.

6.d3 Bd6 7.Nf3 =+.

6.d3 e5 7.Nf3 Bd6 8.Nbd2 Qe7 (8...Qa5 9.Be2=+) 9.cd5= Nd5 10.Nc4 (10.Be2 0–0=) 10...Bc7 (10...0–0 11.Be2=) 11.g3 (11.Be2 0–0=) 11...0–0 (11...a6 12.Qb3=+) 12.Bg2 N5b6 (12...a6 13.ba6 Ra6 14.Qb3=+) 13.Nfd2 Nf6 14.0–0 Rd8 (14...Bf5 15.Nb6 ab6 16.d4=+) 15.Nb6 ab6 16.Nc4 Bf5 17.e4 Be4 18.Be4 Ne4 19.Re1 Ng5 20.f4 (20.Be5 Ne6=+) 20...Ne6 21.Be5 Qd7 22.a4 h6 (22...Be5 23.Re5 Qd4 24.Kf1=) 23.Bc7= Qc7 24.f5 Nd4 25.f6 gf6 26.Qh5 Kh7 27.Ne3 Rg8? 28.Nf5 Nf5+= 29.Qf5 Rg6 30.Re4 Qd6 31.Rf4 Rd8=+ 32.Re1 Kg7 33.Re3= Rg5 34.Qe4 Rd7 35.h4 Rg6 36.Kf2 Qe5 37.Qe5 fe5=+ 38.Re5 Rd3 39.Rf3 (better is 39.Re7!?=). Melich,Jindrich – Baumgartner,Heinz (2335), Ceske Budejovice op, 1992.

6.d4 Nb6 7.Nd2 cd4 8.Bd4 Qc7 9.c5 (better is 9.cd5!? Nbd5 10.Ngf3=) 9...Nbd7+= 10.Rc1 e5 11.c6 Nb6?? (11...ed4 12.cd7 Qd7 13.ed4+=) 12.Bb6?? (better is 12.cb7 Qb7 13.Be5+–) 12...Qb6 13.Ngf3 Bd6 14.Be2 0–0 15.0–0 Be6 16.a4 a5 17.Nb3 Rab8 18.Ng5 Bc8 19.Bf3 e4 20.Be2 h6+= 21.Nh3 Bh3 22.gh3 Qc7 23.f4 Bb4 24.Nd4 b6 25.Bg4 Bc5 26.Kf2 Rfd8 27.Rg1 Kh8 28.Rg2 h5 29.Bh5 g6 30.Bg6 1–0. mihai740609 – barrense, internet, 2013.

6.cd5 ed5 7.Nc3 d4 8.Na4. gtate (1970) – loshpetronio (2000), net–chess.com, 2006.

6.cd5 ed5 7.Nc3 Bd6 8.Nf3 =+.

6.cd5 ed5 7.Nf3 Bd6 =+.

6.Be2 Be7 7.d3 0–0 8.Nf3 a6 9.a4 ab5 10.ab5 Ra1 11.Ba1 Nb6 12.0–0 Qc7 13.Nbd2 Rd8 14.Qc2 dc4 15.dc4 Nbd7 16.Ne4 b6 17.Nf6 Bf6 18.Bd3 h6 19.Rd1 Ba1 20.Ra1 Bb7 21.Be4 Nf6 22.Bb7 Qb7 23.h3 Ne4 24.Rd1 Rd1 25.Kh2?? (better is 25.Qd1 Qa8 26.Qb1=) 25...Rf1 (25...Rf1 26.Nd2 Qc7 27.f4 Rf4–+) 0–1. Valpa – TobiOne, playchess.de, 2002.

6.Nf3 g6 7.Be2 Bg7. Dowd – Fiedler, corr SOK–87–13.

6.f4 b6 7.Nf3 h6 (7...a6 8.ba6 Ba6 9.d3=) 8.Be2= Bd6 9.0–0 Qc7 (9...a6 10.Be5 Qc7 11.d4=) 10.Na3 (10.Nc3 0–0=) 10...0–0 11.Rc1 (11.Qe1 a6=) 11...Re8 (11...a6 12.Qc2=) 12.d4 Bb7 (12...a6 13.Ne5=) 13.Ne5 Ne4 (13...a6 14.Bd3=) 14.Bh5 (14.Bd3 Ndf6=) 14...Rf8 (14...Re7 15.Bf3=) 15.Bf3 Ndf6 16.h3 (16.dc5 bc5 17.Qd3 Rfd8=) 16...Ng3 (16...a6 17.Qd3=) 17.Rf2 (17.Re1 a6=) 17...Nge4 (17...Nfe4 18.Rfc2=) 18.Rf1 ½–½. Kern,Michael (2410) – Kelso,Robert, compuserve, 1997.

6.f4 Nb6 7.cd5 Nbd5 8.Nf3 Be7 9.a4 0–0 10.Bd3 Nb4 11.Be2 Nd3 12.Bd3 Qd3 13.Ne5 Qe4 14.0–0 Nd5 15.Rf3 b6?? (15...Rd8 16.Nc3 Qf5 17.d3=) 16.Rg3?? (better is 16.Nc6 Bh4 17.d3+–) 16...Bf6+= 17.Qg4?? (17.Nc3!? Nc3 18.Bc3+=) 17...g6 (17...Qc2 18.Nc4 e5 19.f5 Bf5 20.Qf3–+) 18.Ng6? (better is 18.Qf3 Qc2 19.Bc3+=) 18...fg6–+ (18...Bb2?? 19.Ne7 Kh8 20.Qg8 Rg8 21.Rg8; 18...Qg6? 19.Bf6 Nf6 20.Qh4+–) 19.Bf6 Rf6 0–1. jura1946 – nekica, internet, 2013.

6.a4 a5

7.ba6 ba6=+ 8.Qc2 Bb7 9.Nf3 Bd6 10.d4 (10.cd5 ed5 11.Be2 0–0=+) 10...0–0 11.Nbd2 cd4 12.Bd4 Bb4 (12...e5 13.Bc3=+) 13.Bd3 (13.Rb1!? a5 14.Bc3=) 13...dc4 14.Qc4 Qa5 15.Ke2 (15.Rb1 Bd2 16.Nd2 Rfc8–/+) 15...Rfc8 (15...Bd2 16.Nd2 Bg2 17.Rhc1–+) 16.Qb3–/+ Rab8 17.Qa2 (17.Nc4 Qh5 18.Ba7–+) 17...Bc3 (17...e5!? 18.Nc4 Rc4 19.Bc4 Bf3 20.gf3 ed4 21.Bf7 Kf8–+) 18.Bc3 (18.Nc4!? Rc4 19.Qc4 (19.Bc4? Bf3 20.gf3 Rb2 21.Qb2 Bb2 22.Bb2 Qb4–+) 19...Ba1 20.Ba1=+) 18...Rc3–/+ 19.Rhc1 Bd5 (19...Nc5 20.Nc4 Qb4 21.Rc3 Qc3 22.Qa3 Bf3 23.gf3–/+) 20.Nc4 Bc4 21.Bc4 Ne4 22.Kf1 (22.Be6 Rc1 23.Rc1 Nc3 24.Rc3 Qc3 25.Bf7 Kh8=+) 22...Ndc5 (22...Qc7 23.Rd1 Qc4 24.Qc4 Rc4 25.Rd7 Rc2–/+) 23.Nd4? (better is 23.Kg1=+) 23...Rc4?? (better is 23...Qc7 24.Rc3 Nc3–+) 24.Rc4+= Nd2 25.Ke2?? (better is 25.Kg1 Nc4 26.Nc6+= (< 26.Qc4 Rb2=+)) 25...Nc4–/+ 26.Qc4 Rb2 27.Nc2 h6 28.Kf3?? (better is 28.Ra3–/+) 28…Nb3–+ (29.Kg3 Na1 30.Na1 Qe5 31.Qf4 Qf4 32.Kf4 Rf2 33.Kg3 Ra2–+) 0–1. Neuhof,KE – Kevicky,M, corr ICCF EU/M/GT/045 (year?).

7.Nf3 b6 8.d3 Bb7 9.Nbd2 Qc7 10.Be2 Rd8 11.0–0 Bd6 12.Qb3 0–0 13.Rfd1 Rfe8 14.Nf1 Ne5 15.Ne5 Be5 16.Rac1 d4 17.e4 g5 (17...Nd7 18.g3–/+) 18.f3 (18.Rb1 Nd7=) 18...h5 19.Rb1 Kh7 20.Bc1 Rg8 21.Qc2 Rg6 22.g3 (22.Bd2 Rdg8+=) 22...Nd7 23.Bd2 f5 24.Qc1 Rdg8 25.Re1 Bd6 (25...f4 26.Kg2–/+) 26.Rb2 f4 27.Kg2 Ne5 28.Qb1 (28.Rb3!?–/+) 28...Qf7 29.Bc1 (29.Bd1!?–+) 29...g4 30.Nd2 fg3 31.f4 Nf3 (31...Qf4?! 32.hg3 Qf7 33.Nb3–+) 32.Nf3 gf3 33.Bf3 gh2 34.Kh2 (34.Kf2–+) 34…Bf4 (34...Bf4 35.Kh1 Bd2 36.Ra2 Qf3 37.Kh2 Qg2 mate) 0–1. Caroff,Frederic (2160) – Mista,Aleksander (2540), Plancoet FRA, Open, 2012.

6.a4 b6

7.Nf3 a5 8.Be2 Bb7 9.0–0 Qc7 10.d4 (10.cd5 Bd5 11.Nc3 Bb7=) 10...Bd6 11.Nbd2 Rg8 (11...cd4!? 12.ed4 0–0=) 12.Rc1 g5 13.g3 h5 14.cd5 Bd5 15.Nc4 h4 16.Nd6 Qd6 17.Ne5 Ke7 18.Bf3 Ne4 (better is 18...Bf3!? 19.Qf3 Qd5+=) 19.Be4 Be4 20.Nd7 hg3 (20...Qd7 21.dc5 Qd1 22.Rfd1 bc5 23.Ba3+/–) 21.fg3 Qd7 22.dc5 bc5?? (better is 22...Qd1 23.Bf6 Ke8 24.Rfd1 Rg6+–) 23.Rf7!! 1–0. Lorenc,Tomas (2105) – Lacha,Jan (1975), Tabor op, 2008.

7.Nf3 Bb7 8.d4 cd4 9.Bd4 Rc8 10.Qb3 Bd6 11.Be2 0–0 12.0–0 (12.Nbd2!?–/+) 12...dc4–+ 13.Qc3 (13.Bc4 Bf3 14.gf3–+) 13...Bf3 14.Bf3 e5 0–1. algernon (2265) – tkletov (2730), net–chess.com, 2013.

7.Nf3 Bb7 8.Be2 Qc7 9.0–0 Bd6 10.h3 Rg8 (10...0–0 11.cd5 Nd5 12.Nc3=) 11.d4 Ne4 12.Nbd2 h6 13.Rc1 Rc8 14.cd5 ed5 15.Ne4 de4 16.Nd2 Nf6 17.Nc4 Be7 18.dc5 Bc5 19.Be5 Qd7 20.Nd6 Bd6 21.Rc8 Bc8 22.Bd6 Bb7 23.Bc4 Qc8 (better is 23...Qf5!?+/–) 24.Qd4+– Nd7 25.Rc1 Qa8 (25...Ba8+–) 26.Bd5!! 1–0. Zahn,Richard (1965) – Biessner,Eberhard (1760), Niederrhein–ch, 2009.

7.Nf3 Bd6 8.Be2 Bb7 9.0–0 Qc7 (9...0–0 10.Na3=+) 10.d3 (10.cd5!? Bd5 11.Nc3=) 10...dc4=+ 11.dc4 Bf3 12.Bf3 Bh2 (12...0–0–0 13.g3=) 13.Kh1 Rd8 (13...0–0–0 14.g3 Bg3 15.fg3 Qg3 16.Qe1 Qh3 17.Kg1=+) 14.g3 Bg3 15.fg3 Qg3 16.Qe2 Ne5 (16...Qh4 17.Kg1=) 17.Be5 Qe5 18.Nd2 Qc3 (18...h5 19.Bc6 Ke7 20.a5=) 19.Ne4 (19.Rad1 Qe5+=) 19...Ne4 20.Be4 Rd2 (20...f5 21.Bc6 Ke7 22.Rad1+=) 21.Qd2 (21.Qh5 Qe3 22.Bc6 Kd8 23.Rf7 g6 24.Qh4 g5+–) 21...Qd2= 22.Rad1 Qd1 23.Rd1 Ke7 24.a5 Rd8 (24...f5 25.ab6 ab6 26.Bc6=) 25.Ra1 (25.Rd8 Kd8 26.ab6 ab6 27.Kg2=+) 25...f5= 26.ab6 ab6 27.Bc6 (27.Bg2 Rd3 28.Ra7 Kf6=+) 27...Rd3 28.Ra6 (28.Ra7!? Kf6 29.Ra6=). Cool,B – Vaillancourt,S, corr CAN, 1994.

6.d3 e5

7.cd5 Nd5 8.Qb3 c4 9.Qc4 Qa5 (9...Nc5 10.d4 ed4 11.Bd4=) 10.Nd2+= N5b6 11.Qb3 Nc5 (11...Na4 12.Rc1+=) 12.Qc3+/– Qc3 13.Bc3 f6 14.d4 Nca4 15.Ba5 Nd5 (15...ed4 16.ed4 Be6 17.Ngf3+/–) 16.Bc4+/– Bb4 17.Bd5 Ba5 18.de5 fe5 19.Ngf3 Nc3 (19...Ke7 20.0–0–0 (< 20.Ne5 Rd8 21.e4 Bc3–/+) 20...Nc3 21.Nc4+/–) 20.Nc4 Nd5 (20...Bc7 21.e4+/–) 21.Na5 e4 22.Nd2 Nf6 23.Rc1 0–0 24.a4 Rf7 25.Ndc4 Ne8 26.Nb3 Be6 27.0–0 Rd8 28.Nd4 Bd5 29.Rfd1 Rfd7 30.Ne5 Rd6 31.Nf5 Re6 32.Nc4 Nf6 33.a5 g6 34.Nd4 Re7 35.Nb2 Red7 36.Rd2 Kf7 37.Na4 Ng4 38.b6 a6 39.Rc7 Kg8 (39...Nf6 40.Ne2+–) 40.Ne2 Bb3?? (40...Rd6+–) 41.Rdd7 (41...Rd7 42.Rd7 Ba4 43.Rb7+–) 1–0. Benassi,Aspasio (2065) – Valdimarsson,Gardar, IECG, 1998.

7.cd5 Nd5 8.Qb3 N5f6 9.Nd2 =.

7.Nf3 Bd6 8.Nbd2 Qe7 9.cd5 Nd5 10.Nc4 Bc7 11.g3 0–0 12.Bg2 N5b6 13.Nfd2 Nf6 14.0–0 Rd8 15.Nb6 ab6 16.Nc4 Bf5 17.e4 Be4 18.Be4 Ne4 19.Re1 Ng5 20.f4 Ne6 21.Be5 Qd7 22.a4 h6 23.Bc7 Qc7 24.f5 Nd4 25.f6 gf6 26.Qh5 Kh7 27.Ne3 Rg8 28.Nf5 Nf5 29.Qf5 Rg6 30.Re4 Qd6 31.Rf4 Rd8 32.Re1 Kg7 33.Re3 Rg5 34.Qe4 Rd7 35.h4 Rg6 36.Kf2 Qe5 37.Qe5 fe5 38.Re5 Rd3 39.Rf3 0–1. Melich – Baumgartner, Ceske Budejovice 1992.

6.d4 cd4

7.ed4 dc4 8.Bc4 Bb4 9.Bc3 Bc3 10.Nc3 Nb6 11.Bd3 0–0 12.Nf3 Bd7 13.0–0 Qc7 14.Qb3 Rad8 15.a4 Nbd5 16.Nd5 Nd5 17.Ne5 Bc8 18.Rac1 Qb8 19.Be4 Nf4 20.Qe3 Ng6 (20...Nd5 21.Qd3 Nf4 22.Bh7 Kh8 23.Qe3 Rd4 24.Bc2+–) 21.Ng6 fg6 22.Rfd1 b6 23.Bc6 Bb7? (better is 23...Qd6!?+/–) 24.Qe6+– Kh8 25.d5 (better is 25.Qe5 Qe5 26.de5+–) 25...Rde8? (better is 25...Bc8 26.Qe3 Kg8+–) 26.Be8 Re8 27.Qf7 Rf8 28.Qc7 Qa8 29.Qd7 Rd8 30.Qe7 Bd5 31.Rc7 Rg8 32.Ra7 Qb8 (32...Qc8 33.Qd7 Bb3 34.Qc8 Rc8+–) 33.Rd5 Qc8 34.Re5 Qc1 35.Re1 Qc2 36.Rd7 (better is 36.Qe3!? h5+–) 36...Qa4 37.Rd8 Qb3 (37...h5 38.Rg8 Kg8 39.Qe6 Kh7 40.Qb6 h4+–) 38.Rg8 Qg8 39.Qe8 h6 40.Qg8 (40.Qg6 Qd8 41.h4 Qc8 42.Re8 Qe8 43.Qe8 Kh7 44.h5 g5 45.hg6 Kg7 46.Qf7 Kh8 47.Qf8) 40...Kg8 41.Re6 1–0. popovicigelu – 1234xhepa, internet, 2013.

7.Bd4 e5 =+.

6.Nf3 Qc7

7.Qb3 b6 8.Be2 Bb7 9.0–0 (9.cd5 Bd5 10.Qc2 Bd6 11.Nc3 Bb7 12.0–0 0–0 13.h3 Rfd8=) 9...Bd6 10.h3 dc4 11.Qc4 Bd5 (11...e5 12.d3 0–0 13.Nc3 a6=) 12.Qc2 0–0 13.d4 (13.Nc3 Bb7=) 13...Ne4 (13...Rac8+=) 14.Rc1 f5 15.Nc3 Ndf6 16.Nd5 ed5 17.dc5 bc5 18.Nd4 Bh2 19.Kf1 Nf2 20.Ne6 Qg3 21.Nf8 Qe3?? (21...Rf8 22.Bf6 (22.Qf5 N2e4 23.Rc2 Nd2 24.Rd2 Ne4 25.Qf8 Kf8–+; 22.Qc5 N2e4 23.Qf8 Kf8 24.Rc8 Ke7 25.Bf6 gf6 26.Rc7 Ke6 27.Rc6 Ke5 28.Re6 Ke6 29.b6 Qf2) 22...Ne4 23.Bf3 Rf6 24.Rd1=) 22.Qc3?? (better is 22.Qc5 Qc5 23.Rc5+–) 22...Nd3–+ 23.Bd3 Qg1?? (better is 23...Re8 24.Be4 Qg1 25.Ke2 Re4 26.Kd3 Qg2–+) 24.Ke2+= Re8 25.Kd2 Qf2? 26.Kd1+– d4? 27.Qd2 Qg3 28.Rc5 Ne4 29.Be4 Re4 30.Bd4 Qh4 31.Be3 Qh5 32.Kc2 Kf8 33.Rf1 Qe8 34.Rcf5 (34.Rcf5 Kg8 35.Qd5 Re6 36.Qe6 Qf7 37.Qf7 Kh8 38.Qe8) 1–0. Praczukowski,Stanislaw – Gradalski,Bartosz (1620), Rubinstein Polanica Zdroj Poland, 2010.

7.Be2 b6 8.0–0 (8.Na3 Bb7 (8...Be7 9.0–0 0–0 10.cd5 ed5 11.Qa4 a6 12.Rfc1 c4 13.d3 Nc5=; 8...e5 9.cd5 Bb7 10.d3 Bd5 11.e4 Bb7 12.Nc4 Bd6 13.Nh4 g6=; 8...Bd6 9.Rc1 0–0 10.d4 a6 11.0–0 Bb7 12.cd5 Bd5 13.ba6 Bf3=) 9.cd5 Bd5 10.d3 a6 11.e4 Bb7 12.Qc2 Bd6 13.Nc4 e5=; 8.cd5 ed5 (8...Nd5 9.0–0 a6 10.Qa4 Ra7 11.ba6 Ba6 12.Ba6 Nb4 13.Rc1 Na6=; 8...e5 9.Nc3 Be7 10.Rc1 0–0 11.d4 ed4 12.ed4 Qd6 13.0–0 Re8+/–) 9.0–0 Bd6 10.d4 c4 11.Ba3 0–0 12.Bd6 Qd6 13.Nc3 a6=) 8...Bb7 (8...Bd6 9.cd5 ed5 10.d4 c4 11.Ba3 a6 12.Bd6 Qd6 13.Qa4 0–0=; 8...e5 9.cd5 e4 10.Ne1 Bd6 11.f4 Nd5 12.Bg7 Rg8 13.Qc2 N7f6+=; 8...dc4 9.Bc4 Bb7 10.d3 Bd6 11.Nbd2 0–0 12.Qc2 Rfd8 13.Rfc1 Ne5=; 8...Be7 9.cd5 ed5 10.Nc3 0–0 11.Qa4 Re8 12.Rfe1 a6 13.ba6 c4=) 9.d4 (9.cd5!? ed5 (9...Nd5 10.Na3= N5f6 11.Rc1 Be7 12.d4 0–0 13.Qa4 Bd5=) 10.Na3 Bd6 11.d4 c4 12.Qc2 0–0 13.Nb1 Rfe8+=) 9...dc4+= 10.dc5 (10.Bc4 cd4 11.Qd4 Bf3 12.gf3 Bd6 13.f4 g5+=) 10...Bc5 (10...Qc5 11.Qa4 Bd5 12.Rc1 a6 13.Bc4 Bc4+=) 11.Qc2 (11.Nbd2 0–0 12.Nc4 Rfd8 13.Qb3 Bd5=) 11...Rc8 (11...Bd6 12.Nbd2 Bf3 13.Nf3 a6=) 12.Qc4 (12.Bc4? Bf3 13.gf3 Bd6–+) 12...0–0 13.Nbd2 (13.Rd1 Rfd8=) 13...Qb8 (13...Rfd8=) 14.Qh4 Rfe8 15.Nb3 Be7 16.Qa4 Bd5 17.Rfc1 Bd6 18.Nbd4 (18.Qh4 e5=) 18...Qb7 (18...Nc5 19.Qd1+=) 19.Qd1 Ne5 20.Ne5 Be5 21.Bf1 Rc1 22.Bc1 Rc8 23.a4 Qc7 24.g3 Qb7 25.Bb2 Nd7 26.a5 Bf6 27.a6 Qa8 28.Rc1 Nc5 29.Ba1 Rc7 30.f3 e5 31.e4 Be4 32.fe4 ed4 33.Bd4?? (better is 33.Rc4!?–/+) 33...Rd7 (33...Bd4 34.Qd4 Nb3 35.Rc7 Nd4 36.Bc4–+) 34.Rc4? (34.e5 Bg5 35.Rc5 bc5 36.Qg4 cd4 37.Qg5–+) 34...Qe4 (better is 34...Ne6–+) 35.Bc5= Qc4 (35...Rd1? 36.Re4 Rd8 37.Bb6 ab6 38.a7+–) 36.Qd7 (36.Bc4?? Rd1 37.Kf2 bc5–+) 36...Qc5 37.Kg2 Qe7 0–1. Kamaletdinov,Farit (1970) – Buryakov,Georgiy, Astrakhan Open, 2011.

7.Be2 e5 A) 8.Qb3 d4 (8...e4 9.Ng1 Bd6 10.cd5 Bh2 11.g3 Bg1 12.Rg1 Ne5 13.Qc3 Nfd7=; 8...Qd6 9.d4 cd4 10.ed4 e4 11.Ne5 Qb4 12.Qb4 Bb4 13.Bc3 Be7=; 8...Bd6 9.cd5 e4 10.Nh4 Ne5 11.f4 ef3 12.Nf3 0–0 13.Be5 Be5=) 9.d3 Bd6 10.0–0 0–0 11.Nbd2 Re8 12.a3 a6 13.ba6 Ra6+=; B) 8.d3 d4 (8...dc4 9.dc4 Bd6 10.Nbd2 0–0 11.Bd3 Rd8 12.0–0 a6 13.a4 b6=; 8...Bd6 9.cd5 Nd5 10.0–0 0–0 11.Nbd2 b6 12.Qb3 Bb7 13.Ne4 Be7=; 8...e4 9.Nfd2 ed3 10.Bd3 Ne5 11.Be2 Be6 12.cd5 Nd5 13.0–0 Rd8=) 9.0–0 Bd6 10.Na3 de3 11.fe3 Ng4 12.Qd2 e4 13.de4 Bh2+=; C) 8.cd5 Qd6 (8...Nd5 9.Qb3 N5b6 10.d3 Bd6 11.a4 a5 12.ba6 Ra6 13.Nc3 Ra5+=; 8...e4 9.Ng5 h6 10.Nh3 Nd5 11.f3 N7f6 12.Nf2 ef3 13.Bf3 Qb6=; 8...Be7 9.Nc3 0–0 10.e4 Rd8 11.Qc2 Qd6 12.0–0 Nh5 13.Bc4 Nb6+=) 9.Nc3 Nd5 10.Nd5 Qd5 11.Qc2 e4 12.Bc4 Qf5 13.d4 Nb6=.

6.Nf3 Bd6

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7).

7.Be2 0–0 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0).

6.f4 Bd6

7.Nf3 0–0 8.Qc2 Re8 9.Be2 Qc7 (9...a6 10.ba6 b6 11.0–0=) 10.cd5 (10.0–0 e5 11.cd5 ef4=+ (< 11...Nd5 12.fe5 Ne5 13.Ng5=)) 10...ed5=+ 11.g3 b6 12.0–0 Bb7 (12...a6 13.Nc3=+) 13.Nc3 d4 (13...a6 14.ba6 Ba6 15.Nb5=) 14.Nd1 (14.ed4 Rad8 15.dc5 Bc5 16.Kg2 Qd6=) 14...Nd5 (14...a6 15.ba6 Ba6 16.Ba6 Ra6 17.Qd3–/+) 15.Bd3 (15.Ng5 N7f6=+) 15...N7f6 16.ed4 (16.Bf5!?=+) 16...Nb4–/+ 17.Qb3 Nd3 18.Qd3 c4 19.Qf5 Bc8 20.Qc2 Bh3 21.Re1 Qb7 (21...Re1 22.Ne1 a6 23.ba6 Ra6 24.d3–/+) 22.Nf2=+ Bd7 23.Ne5 Bb5 24.Nc4 Qc7 25.Na3 (25.d3 Nd5=+) 25...Qc2 (25...Bc6!?–/+) 26.Nc2=+ Rac8 27.Rac1 (27.Ne3 Bc6=) 27...Re1=+ 28.Ne1 Rc1 29.Bc1 Bc4 30.a3 a5 31.Ned3 Bd5 32.Nd1 Kf8 33.Nc3 Bb7 34.Ne5 Ke8 35.Nb5 Bb8 36.Nc4 Bc6 37.Nbd6+= Kf8 38.Nf5 g6 39.Nfe3 Bc7 40.Ne5 Bb7 41.a4 Nd5 42.Ba3 Nb4 43.N3c4 Ke7 44.Kf2 Ke6= 45.Ke2 f6 46.Ng4 Nc2 47.Bb2 Bc6 48.Bc3 Ba4 49.d5 Kd5 50.Nb2 Bb5 51.Kd1 Nd4 52.Nf6 Kc5 53.Nh7 a4 54.d3? a3–/+ 55.Nc4 Bc4 56.dc4 Kc4 57.Ba1 b5 58.Nf8–/+ b4 59.Ng6 b3 60.Kc1 Nc2 61.Bg7 Nd4 62.Bd4 Kd4 63.Ne5 b2 64.Kb1?? Kc3 (65.Nc6 Bb6=+; 64...Be5 65.fe5 Kc3+–) 0–1. Sundin,Thommy – Johansson, Sweden, 1989.

7.Nf3 0–0 8.Be2 =+.

7.Nf3 Qa5 8.Be2= 0–0 9.0–0 Qc7 10.cd5 ed5 11.a4 b6 12.Na3 Re8 13.Rc1 c4 14.Nc2 a6 15.Ncd4 Nc5 16.Ba3 Qd7 17.ba6 Ra6 18.Nb5 Bb7 19.Nd6 Qd6 20.Ne5 Bc6 21.Bh5 Rf8 22.Nc6 Qc6 23.Bf3 Ra4 24.Bc5 bc5 25.Qe2 Qa6 26.Rc2 Ra8 27.Rb1 Rb4 28.Rbc1 Qe6 29.g4 h6 30.Qg2 Rab8 31.g5 hg5 32.fg5 Ne4 33.Be4 de4 (34.g6 fg6–/+) 0–1. Kern,Michael – Pappert,Thomas, compuserve, 1998.

7.Nf3 Qc7 8.cd5 ed5 9.Be2 0–0 10.0–0 b6 (10...Re8 11.Nc3=+) 11.Qb3 (11.a4 Re8=+) 11...Bb7 12.Nc3 d4 13.Nd1 Bd5 14.Bc4 Qb7 15.Bd5 Qd5 16.Qd5 Nd5 17.ed4 Nf4 18.dc5 Nc5 19.Ne3 Ncd3 (better is 19...Rfd8!?=) 20.Bg7+/– Rfe8 (20...Kg7 21.Nf5) 21.Nf5 (21.Bh6 Ne2 22.Kh1 Re6+/–) 21...Bc5+= 22.Bd4 Ne2 (22...Rad8 23.Be3+=) 23.Kh1 Nd4 24.N5d4 (24.N3d4 Rad8 25.Nc6 Rd7+=) 24...Re4= 25.Nb3 Nf2 26.Kg1 Nh3 27.Kh1 Nf2 ½–½. Kreuzer,Uwe – Schneider, Verbandsliga Nordbad, 1983.

6.a4 a6

7.Nf3 ab5

8.ab5 Ra1

9.Ba1 Nb6 10.Ne5 Nfd7 (10...Bd6 11.d4+=) 11.cd5 (11.Nd7 Bd7 12.d3 f6=) 11...Ne5 (11...ed5 12.Qh5 Qf6 13.Be2=) 12.Be5 f6 (12...ed5 13.Bd3=) 13.Bb2 (13.Bc3 Nd5 14.Bc4 Qd7=) 13...ed5 14.Qh5 g6 15.Qf3 (15.Qh4 Bg7=) 15...Kf7 (15...Bf5 16.Nc3=) 16.Bd3 (16.Be2 Bd6=) 16...Bd6 17.Nc3 (17.0–0 Kg7=) 17...Be6 (17...Be5 18.0–0=) 18.0–0 (18.Be2 Kg7=) 18...Be5 Black plans d4 19.Qd1 (19.Ra1 Kg7=) 19...f5 20.f4 Bf6 Black gets deadly initiative (20...Bg7=) 21.Ba3 (better is 21.Qf3!?=) 21...d4–/+ 22.Ne2 c4 23.Bb1 d3 24.Ng3 (24.Nc3 Bc3 25.dc3 Nd5–+) 24...Qd5–+ 25.Qf3 (25.Qc1 Qb5 26.e4 Bd4 27.Kh1 h5–+) 25...Ra8 26.Qd5 Bd5 27.Bc5 Nd7 28.Bb4 (28.Bd4 Bd4 29.ed4 Ra5–+) 28...Ra4 29.Bd6 (29.Bc3 Bc3 30.dc3 Ra3–+) 29...Ke6 30.Bc7 Rb4 31.b6 Nb6 (31...Nb6 32.Rd1 Na8–+) 0–1. Kmet,A – Modestov,B, Dagomys RUS, 2004.

9.Ba1 Be7

10.Be2 0–0 11.0–0 dc4 12.Bc4 Nb6 13.d3 Qc7 14.Qb3 (14.Nbd2 Rd8=) 14...Nc4 15.dc4 Rd8 16.Rd1 (16.Be5 Qb6=) 16...b6 17.Nc3 (17.Be5 Rd1 18.Qd1 Qd7 19.Qd7 Nd7= (19...Bd7? 20.Bc7+–)) ½–½. Fernandez Garcia,J – Basterra,G, Bilbao, 1974.

10.Be2 0–0 11.0–0 dc4 12.Bc4 Nb6 13.Be2 Nbd5 14.Nc3 Nc3 (14...b6 15.d4=) 15.dc3 Qc7 (15...b6 16.c4=) 16.c4+= Nd7 17.Qc2 Bf6 (17...b6 18.Bd3 f5 19.e4+=) 18.Bf6 (18.Bd3 h6+=) 18...Nf6 19.Rd1 (19.Qb2 Rd8+=) 19...Rd8 (19...e5 20.Ng5+=) 20.Rd8 Qd8 21.Qd3 Threatening mate... how? 21...Qd3 (21...Qc7 22.Ne5+=) 22.Bd3 b6 ½–½. Sternik,Ryszard – Wojtunik,P, Olsztyn Poland, 1985.

10.Be2 0–0 11.0–0 dc4 12.Bc4 Nb6 13.Be2 Nbd5 14.d4 Qa5 15.Nbd2 Bd7 The isolani on b5 becomes a target (15...cd4 16.Nb3 Qb4 17.Nbd4=) 16.Qb3 (16.dc5 Bb5 17.Bd4 Rc8=) 16…Ra8 ½–½. Kleinke,Uwe – Raessler,Arndt, Germany, 2005.

10.Be2 0–0 11.0–0 dc4 12.Bc4 Nb6 13.Be2 Nfd5 14.d4 cd4 (14...c4 15.Ne5 Bd7 16.e4=) 15.Bd4+= Bd7 (15...f6 16.Qb3+=) 16.Qb3 (16.Qc2 Bf6+=) 16...Bf6= 17.Ne5 Qe7 (17...Qc7 18.f4+=) 18.Nd2 Be5 19.Be5 Ra8 20.Nc4 (20.Rd1 f6 21.Bd4 Be8+/–) 20...Nc4 21.Bc4 Nb6 (21...Rc8 22.Rd1+= (worse is 22.Bd5 ed5 23.Bd4 Qg5=)) 22.Be2 (22.Bd3 Nd5+=) 22...Qa3 (22...Qg5 23.f4 Qe7 24.Rc1+=) 23.Qc2+/– Qa2 (23...Rc8 24.Qe4 Nd5 25.Bd4+/–) 24.Bb2 (24.Qd3!?+/–) 24...Rc8+= 25.Qd2 Qd5 Attacking the isolated pawn on b5 (25...e5 26.Ra1 Qe6 27.e4+=) 26.Rd1 Qd2 27.Rd2 f6 28.h3 (28.f4 Be8+=) 28...Rc5 (28...Be8 29.Bg4 f5 30.Be2=) 29.Bd4 (29.Kh2 Rd5 30.Rd5 ed5+=) 29...Rc1 30.Kh2 (30.Rd1 Rd1 31.Bd1 Nc4=) 30...Nc4= 31.Bc4 Rc4 32.Bf6 Bb5 (32...gf6 33.Rd7) ½–½. Apgar,R – Ryan,R, Parsippany, 2006.

10.Be2 Qa5 11.Nc3 Nb6 12.0–0 0–0 (12...dc4 13.Qc2=+) 13.d3= Rd8 14.Qc2 Bd7 15.Bb2 Qa8 16.Ra1 Qb8 17.Na4 Na4 18.Qa4 Be8 19.Qa7 Qc8 20.Bc3 Bd6 (20...dc4 21.dc4 Ne4 22.Ba5+=) 21.Nd2 Bb8 22.Qa2 Qc7 23.g3 (23.Nf3 Ng4 24.Qb2 dc4 25.dc4 f6+=) 23...e5= 24.Bf3 d4 25.ed4 ed4 26.Bb2 Nd7 (26...Bd7 27.Ne4 Ne4 28.Be4+=) 27.Be4 (27.Qa8 Ne5 28.Be4 Qe7+=) 27...Ne5 28.Qa8 b6 29.Ra3 Bd7 30.Bc1 Re8 31.Nf1 Qd6 32.Bf4 Kf8 (32...Bc8 33.Nd2=) 33.Nd2 (33.Qb7!?+/–) 33...f5 34.Bd5 Qe7 35.Be5 Be5 36.Qb7 Bf6? (36...Rb8 37.Ra8 Ra8 38.Qa8 Qe8 39.Qb7+=) 37.Ra8 (37.Qb6 Qe1 38.Kg2+–) 37...Ra8= 38.Qa8 Qd8 39.Qb7 g5 40.Bc6+/– Be6 41.Qh7 g4 42.Qh6 Kf7 43.Qh7 Kf8 44.h3 Bg7 45.Qg6+– Qe7 46.hg4 fg4 47.Ne4 Qf7 48.Qg5 Qc7 49.Bd5 Qd7 50.Be6 Qe6 51.Qd8 Qe8 52.Qb6 Kg8 53.Qc5 Qf7 54.Qc8 Bf8 (54...Qf8 55.Qg4 Qa3+–) 1–0. Hirth,U – Miezis,N, Biel, 1992.

6.a4 Bd6

7.d3 0–0 8.Nd2 b6 (8...Qa5 9.Ngf3+=) 9.cd5 (9.Ngf3 a6+=) 9...ed5 10.g3 (10.Ngf3 Re8+=) 10...Re8 (10...Be5 11.Be5 Ne5 12.d4 cd4 13.ed4+=) 11.Bg2 (11.Ngf3 Qe7+=) 11...Ne5 (11...Be5 12.Be5 Ne5 13.Ndf3+=) 12.Ndf3+= Qe7 (12...Bg4 13.h3 Bh5 14.g4=) 13.Ne2 (13.Ne5 Be5 14.d4 cd4 15.Bd4 Ne4+=) 13...Bh3 (13...Bg4 14.Ne5 Be5 15.Be5 Qe5 16.Rc1+=) 14.Bh3 Nf3 15.Kf1 Ne5 16.Qb3 (16.Bg2 a6+=) 16...c4–/+ 17.dc4 Nc4 (17...dc4 18.Qc2 Nd3 19.Bd4+=) 18.Rd1 (18.Bf6!? Qf6 19.Kg2+=) 18...Ne4–/+ 19.Kg2 (19.Bc1 Qf6 20.Nf4 Bf4 21.ef4 Rad8–/+) 19...Nb2–+ 20.Qb2 Nf2! (20...Nf2 21.Kf2 Qe3 22.Kg2 Ba3–+) 0–1. Neuhof,KE – Van Schoor,K, corr EU–ch M, 1974.

7.a4 Bb7

7.Nf3 (--> 1. b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.a4).

7.Nf3 0–0 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.a4).

6.Nf3 a6

7.Qc2 ab5 8.cb5 (8.cd5 ed5 9.Bb5 Bd6=) 8...Bd6+= 9.Be2 0–0 10.0–0 Qc7 (10...e5 11.d3+=) 11.d4 c4 12.Bc3 (12.Nc3 Re8=) 12...Re8 (12...Ne4 13.a4+=) 13.Nbd2 e5 (13...Ra3 14.Rfc1+=) 14.de5 Ne5 15.Nd4 (15.Rfd1 Bg4+=) 15...Ng6 (15...Bg4 16.Bg4 Neg4 17.h3+=) 16.a4 (better is 16.h3!?=) 16...Bh2–/+ 17.Kh1 Ne4 (17...Be5–/+) 18.g3? (18.b6 Qd6 19.Ne4 Re4 20.Nb5–/+) 18...Bg3–+ (18...Nc3 19.Qc3 Bg3 20.fg3 Qg3 21.Rf3 Qh4 22.Kg2–/+) 19.fg3 (19.Ne4 Re4 20.Kg1 Bh2 21.Kh1 Rh4–+) 19...Ng3 20.Kg2 (20.Kg1 Nf1 21.Nf1–+) 20...Nf1 (20...Re3 21.Rf2 Nf4 22.Rf4 Qf4 23.Bf3–+) 21.Rf1? (better is 21.Nf1 Nh4 22.Kf2–+) 0–1. Nyikos,Laszlo – Scholz,Werner, 14 sen. LSen EM Brandenburg op, 2006.

7.Qc2 Bd6 8.Na3 +=.

7.Nc3 Nb6 =.

7.a4 ab5

8.ab5 Ra1

9.Ba1 Nb6 10.Ne5 Nfd7 (10...Bd6 11.d4+=) 11.cd5 (11.Nd7 Bd7 12.d3 Qg5=) 11...Ne5 (11...ed5 12.Bd3=) 12.Be5 f6 (12...ed5 13.Bd3=) 13.Bb2 (13.Bc3 Nd5 14.Bc4 Be7=) 13...ed5 14.Qh5 g6 15.Qf3 (15.Qh4 Bg7=) 15...Kf7 (15...Bf5 16.Nc3=) 16.Bd3 (16.Be2 Na4 17.Ba1 Bf5=) 16...Bd6 17.Nc3 (17.0–0 Kg7=) 17...Be6 (17...Be5 18.0–0=) 18.0–0 Be5 Black prepares d4 19.Qd1 f5 20.f4 (20.Qc2 d4 21.Na4 Na4 22.Qa4 Qd6=) 20...Bf6 (20...Bg7=) 21.Ba3 (better is 21.Be2!?=) 21...d4–/+ 22.Ne2 c4 23.Bb1 d3 24.Ng3 (24.Nc3 Bc3 25.dc3 Nd5–+) 24...Qd5–+ 25.Qf3 (25.Kh1 Ra8 26.Bb4 Qb5–+) 25...Ra8 Black terminates the opponent with strong threats 26.Qd5 Bd5 27.Bc5 Nd7 28.Bb4 (28.Bd4 Bd4 29.ed4 Ra5–+) 28...Ra4 29.Bd6 (29.Bc3 Bc3 30.dc3 Ra3–+) 29...Ke6 30.Bc7 Rb4 31.b6 Nb6 (31...Nb6 32.Rd1 Na8–+) 0–1. Kmet,Artjom (2230) – Modestov,Boris (2355), RUS–ch U18 Dagomys, 2004.

9.Ba1 Qc7 10.cd5 ed5 11.Be2 Bd6 12.h3 0–0 13.0–0 b6 14.d3 Bb7 15.Nbd2 Re8 16.Re1 Ra8 17.Qc2 Ra5 18.Qb3 Qb8 19.Bc3 Ra7 20.Ra1 Ra1 21.Ba1 Qa8 22.Bc3 Qe8 23.Qb2 (23.Qc2 Bf8 24.Nb3 Qe6=) 23...h6 (better is 23...d4!? 24.Nd4 cd4 25.Bd4 Bc5–/+) 24.Bf1 Qe6 25.Qa1 Bb8 26.Qe1 Ne8 27.Qa1 f6 28.Qe1 Nd6 29.Qb1 Nf8 30.d4 c4 31.Bb4 Qe8 32.Bd6 Bd6 33.Qb2 Kh8 34.Nb1 Qa8 35.Nfd2 Qa5 36.Nc3 Bb4 37.Ndb1 f5 38.g3 Ne6 39.Na2 (39.Bg2 Nc7=) 39...Be7 40.Nbc3 Nc7 Exerts pressure on the isolated pawn 41.Bg2 g6 42.Qb1 Qa3 43.g4 Qb3 44.Qa1 Qc2 45.Qc1 Qc1 46.Nc1 Ba3 (46...fg4!? 47.hg4 Bb4+=) 47.N1a2+= fg4 48.hg4 Kg7 49.f3 (49.Na4!?+=) 49...Bc8 50.f4 Bb7 (50...Be6 51.Na4=) 51.Kf2 (51.Na4 h5+=) 51...Kf8 (51...Kf6 52.Na4 h5 53.Nb6 Nb5 54.Nd5 Kf7 55.Kg3+/–) 52.Ke2 (52.Na4!?+=) 52...Ke7= 53.Kd2 Kd6 54.e4 de4 55.Ne4? (better is 55.Ke3!?+=) 55...Be4 56.Be4 h5?? (better is 56...Nb5 57.Bg6 Nd4–+) 57.g5 0–1. Tagirov,Kajum K (1920) – Ermakov,Vladimir (2030), Kopylov Memorial op, 2008.

6.Nf3 b6

7.a4 a5 8.ba6 (8.d4 Bb7=) 8...Ba6+= (worse is 8...Ra6 9.cd5 Ra5 10.de6 fe6 11.Bc4+/–) 9.Na3 Bd6 10.Qb3 (10.Be2 0–0+=) 10...0–0 11.Be2 (11.Nb5 Bb5 12.ab5 Ra1 13.Ba1 Qc7+=) 11...Bb7 (11...e5 12.d3+=) 12.Nb5 Bb8 (12...dc4 13.Qc4 Bd5 14.Qc3=) 13.0–0 e5 14.cd5 (14.d3 Qe7=) 14...e4+= 15.Nh4 (15.Ne1 Bd5 16.Qc2 Qe7+=) 15...Bd5–/+ 16.Qc3 Ne5 (16...Ne8 17.Nf5–/+) 17.f4+= ef3 18.Bf3 (18.Nf3 Re8+=) 18...Bf3 19.Nf3 Ne4 20.Qc2 Nf3 21.Rf3 Qd2 (21...Nd2? 22.Rh3 h6 23.Rd1+–) 22.Qb3 (22.Qe4 Qb2 23.Raf1 Qe5–/+) 22...c4 23.Qa3 Nc5 24.Raf1? (better is 24.Bc3 Qd5 25.Qb4–+) 24...Ra4 25.Qc3 Threatening mate: Qxg7 25...Qc3 26.Bc3 Ne4 (26...Nd3 27.Bd4 Ra6 28.Rf5–+) 27.Rb1 (27.Rd1 f6–+) 27...Rc8 28.Rd1 f6 29.g4 (29.Rff1 Kf7–+) 29...Ra2 30.Rf4 (30.Rd4 Bh2 31.Kf1 Nc3 32.Nc3 Ra7–+) 30...Bf4 31.ef4 Nc3 (31...h5 32.Rd4 Nc3 33.Nc3–+) 32.Nc3 0–1. Semenov,Viktor – Ghukov,Viktor, Novorossijsk op, 1996.

7.a4 Bd6 8.Be2 =+.

7.Qc2 Bb7 8.d4 (8.cd5 Nd5 9.a3 N5f6=) 8...dc4 (8...cd4 9.Bd4 Bd6 10.Nbd2+=) 9.Nbd2 cd4 10.Bd4 Be7 (10...Bf3 11.Nf3 Bb4 12.Bc3=) 11.Bc4= 0–0 (11...Rc8 12.Rc1=) 12.0–0 Nc5 (12...Rc8 13.Rfd1=) 13.Rfd1+= Rc8 (13...Qc7 14.Rac1+=) 14.Qb2 (14.Rac1 Bd6+=) 14...Nce4 (14...Qd7 15.Ne5 Qc7 16.Rac1=) 15.Ne4+= Be4 16.Be5 (16.Nd2 Bd5 17.Be5 Qd7=) 16...Rc4 (16...Nd7 17.Rac1 Bf3 18.gf3=) 17.Rd8+= Rd8 18.Nd4 Nd7? (better is 18...Rc5!? 19.f4 Rdc8+=) 19.Bg7!+– e5 (19...Kg7 Decoy theme: g7 20.Nf5 A double attack) 20.Nc6 Kg7 (better is 20...Bc6 21.bc6 Rc6 22.Be5 Ne5 23.Qe5 Bf6 24.Qg3 Bg7+–) 21.Qe2?? (better is 21.Ne7 Kf6 22.Qa3+–) 21...Rc6+= 22.bc6 Bc6 23.Qa6 (23.Qg4 Kf8+=) 23...Ra8 24.Qc4 Nc5 25.Qg4 Kf6 (25...Kh8!? 26.Qh5 f6+=) 26.f4= e4 27.Rc1 Re8 (27...h6 28.Qh4 Ke6 29.Qh3 Kd6 30.Qh6 f6 31.g4+=) 28.Qg5+= Ke6 29.Qe5 Kd7 30.Qf5 Kd8 31.Qf7 (31.Qh7?! Rf8+=) 31...Bd7 (31...h6 32.Qg6 Bb7 33.Qh6+–) 32.Qd5 (32.Qh7 Nd3 33.Rc4 Nc5+–) 32...a5 (32...Kc7 33.Qe4 Bf6 34.Qh7 Re3 35.Rd1+–) 33.Qa8 Kc7 34.Qe4 h6 (34...Bd6 35.Qh7 Re3 36.f5+–) 35.Qg6 (35.Qh7 Bd6 36.Kf2 Re6+–) 35...Bd6 36.Kf2 Re6 37.Qh7 (37.Qg8 Be7+–) 37...Kd8 38.Qh8 (38.g4 Bb5 39.Qg8 Ke7+–) 38...Ke7+/– 39.Qg7 Ke8 40.Rc4 Nd3 41.Kf1 (better is 41.Kf3!?+–) 41...Re3+= ½–½. Zwerenz – Fischer,A, corr SOK–87–15, 1987.

7.Qc2 Bd6 8.Be2 =.

7.Qc2 h6 8.a4 Be7 9.Be2 0–0 10.0–0 a6 11.Nc3 Bb7 12.d3 ab5 13.Nb5 Bc6 14.Rfd1 Bb5 15.cb5 Bd6 16.Ra2 Qc7 17.g3 Be5 18.Ne5 Ne5 19.Qc3 Rfc8?? Black prepares the advance c4 (better is 19...Ng6=) 20.Qe5+– Qe5 21.Be5 c4 (21...Ra7 22.Rda1+–) 22.dc4 dc4 23.Rc1 Ne4 24.Bf3 Rc5 (24...f5+–) 25.Bd4 Rf5 (25...Rb5 26.Be4 Ra7 27.Rc4+–) 26.Be4 (26.Be4 Rd5 27.Bd5 ed5 28.Bb6+–) 1–0. Dias,Jose OG (1635) – Carapinha,Francisco, VII Open Figueira da Foz POR, 2010.

7.Nc3 a6 =.

7.Nc3 Be7 =.

7.d3 Qc7 8.Be2 Bb7 (8...dc4 9.dc4 Bd6 10.0–0=) 9.Nbd2 (9.Na3 Bd6+=) 9...Be7 10.0–0 dc4 11.Nc4 Ng4 (11...a6 12.a4=) 12.e4 Bf6 (12...0–0!?=) 13.Bf6+/– gf6 14.h3 (14.Ne3 Nge5 15.d4 cd4 16.Qd4+=) 14...h5 (better is 14...Nge5!?=) 15.d4+/– (15.hg4 hg4 16.Re1 gf3 17.Bf3 Ne5–/+) 15...0–0–0 (15...Rd8 16.Qc2+/– (16.hg4 hg4 17.g3 gf3–+)) 16.Qc2 (16.hg4 hg4 17.Rc1 gf3–+) 16...cd4 (better is 16...f5!? 17.hg4 Be4+/–) 17.Nd6+– (17.hg4 Nc5 18.gh5 d3 19.Bd3 Nd3=) 17...Kb8 18.Qc7 Kc7 19.Nb7 (19.hg4 Kd6 20.gh5 e5–/+; 19.Nf7?! Nge5 20.Rac1 Nc5 21.N3e5 fe5 22.Nh8 Rh8+/–) 19...Kb7 20.hg4 d3 (20...Nc5 21.gh5 d3 22.Bd1 Rh5 23.Nd4+=) 21.Bd3+– hg4 (21...Nc5 22.Bb1 hg4 23.Nh2+–) 22.Nh2 Ne5 23.Be2 f5 24.ef5 ef5 25.Rfd1 Rde8 26.Rac1 Rh7 27.f4 Ng6 28.Rd7 Kb8 29.Bc4 Nf4 30.Rcd1 Rhh8 31.Rf7 Re4 32.Bf1 Re5 33.Rdd7 Nd5 34.Rb7 Ka8 35.Ra7 Kb8 36.Bd3 Nf4 37.Rfb7 Kc8 38.Rb6 Rh5 39.Rf6 Kb8 40.b6 Rh8 41.Ng4 Re1 42.Bf1 Nh5 43.Rh6 Rf8 44.Nh2 1–0. Turcot,J – White,R, corr CCCA, 1995.

7.d4 a6 =.

7.cd5 ed5 8.Nc3 =.

7.cd5 Nd5 8.Na3 N7f6 9.Be2 Bb7 10.0–0 Be7 11.Ne5 0–0 12.Nac4 Nd7 (12...Qc7 13.Qb3+=) 13.a4 (13.Nc6!? Qe8 14.Bf3+/–) 13...Ne5= 14.Be5 f6 15.Bg3 e5 16.Qb3 Kh8 17.Bf3 Qd7 18.a5 Nb4 (18...Rab8!?+/–) 19.ab6+– Bf3 20.gf3 Qb5 21.ba7 (worse is 21.Ra7 Ra7 22.ba7 Qa6+=) 21...Qb7 22.f4 (22.Qa4!?+–) 22...ef4+/– 23.Bf4 Ra7 24.Nd6 Bd6 25.Bd6 Rd8 26.Bc5 Qd7?? (better is 26...Nd3 27.Qb7 Rb7+/–) 27.Qb4+– (27.Ra7?! Qg4 28.Kh1 Qf3 29.Kg1 Qg4 30.Kh1 Qf3 31.Kg1 Qg4=; 27.Ba7?! Qg4 28.Kh1 Qf3 29.Kg1 Qg4 30.Kh1 Qf3 31.Kg1 Qg4=; 27.Bb4?! Qg4 28.Kh1 Qf3 29.Kg1 Qg4 30.Kh1 Qf3 31.Kg1 Qg4=) 27...Rb7 28.Qe4 Rb5 (28...f5 29.Qf3+–) 29.d4 1–0. forsetinn (1990) – gmcfly (1880), gameknot.com, 2013.

7.Be2 a5 8.0–0 (8.d4 cd4 9.Nd4 Bb4 10.Bc3 Bc3 11.Nc3 Qc7+=) 8...Be7 (8...Bd6 9.d4=) 9.d4 0–0 10.Nbd2 Bb7 11.Ne5 (11.Rc1 Rc8=) 11...Rc8 (11...cd4 12.Bd4 Ne5 13.Be5=) 12.Rc1 (12.Nd7 Nd7 13.cd5 Bd5=) 12...Qc7 (12...cd4 13.Bd4 Ne5 14.Be5=) 13.f4 (13.Nd7 Nd7 14.Bd3 Rfd8=) 13...Ne5 (13...Rfd8 14.Bf3=) 14.de5 (14.fe5 Nd7=) 14...Nd7 (14...Ne4 15.Ne4 de4 16.Qc2=) 15.Nf3 (15.cd5 ed5 16.Bg4 f5=) 15...Rfd8 16.Qc2 g6 (16...dc4 17.Bc4 (worse is 17.Qc4 Bd5 18.Qa4 c4+=) 17...Bd5 18.e4+=) 17.Kh1 (17.cd5 ed5 18.Nd4 Re8+=) 17...Bf8 18.Ng5 (18.cd5 ed5 19.f5 Re8+=) 18...Bg7 (18...Bh6 19.cd5 Bd5 20.e4+=) 19.cd5 White is in command 19...Bd5 20.e4 Bb7 (better is 20...Ba8+=) 21.Ne6?? (better is 21.f5 Ne5 22.fe6+/–) 21...fe6–/+ 22.Bc4 Nf8 23.f5 gf5 (23...Rd7 24.f6 Bh6 25.Rcd1–+) 24.ef5 Be5?? 25.fe6+= Bd5 26.Rf7 Qd6= 27.Qf5 Bc4? 28.Qg5 Ng6 29.Qh5 Do you see the mate threat? 29...Qd1 30.Rd1 Rd1 31.Qd1 Threatening mate: Qh5 31...Bb2 32.Qd7 Do you see the mate threat? 32...Rf8?? 33.Rf8 (33.Rf8 Nf8 34.Qf7 Kh8 35.Qf8#) 1–0. Mallet,J – Goyffon,F, corr France, 1973.

7.Be2 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5 7.Be2 Nbd7) 8.0–0 Qc7 9.d3 Bd6 10.Nbd2 0–0 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d3 Bb7 10.Nbd2 Qc7).

7.Be2 Qc7 8.0–0 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5 7.Be2 Nbd7 8.0–0 Qc7).

7.Be2 Be7 8.Qc2 Qc7 ½–½. Moehring,Norbert (2165) – Bienhuels,Michael (1910), Bad Woerishofen op, 2003.

7.Be2 g6 8.0–0 (8.cd5 ed5 9.Nc3 Bb7=) 8...Bg7 9.d4 Bb7 10.Nbd2 (10.dc5 Nc5 11.cd5 Qd5+=) 10...0–0= 11.Rc1 (11.Qc2 a6=) 11...Ne4 (11...a6 12.cd5 Nd5 13.Qb3=) 12.Qb3 (12.Qc2 Nd2 13.Qd2 dc4+=) 12...Re8 (12...Nd2 13.Nd2 cd4 14.ed4 dc4 15.Nc4= (worse is 15.Qc4 Bg2 16.Kg2 Qg5 17.Kh1 Qd2–/+)) 13.Rfd1 (13.Ne4 de4 14.Nd2 Qg5=) 13...Nd2 14.Nd2 (14.Rd2 a6 15.dc5 Nc5+=) 14...dc4 (14...cd4 15.ed4 dc4 16.Nc4=) 15.Bc4 (15.Nc4 Qg5 16.f3 Red8=) 15...Qg5 (15...Rc8 16.Nf1=) 16.Bf1 (16.f3 cd4 17.Bd4 Bd4 18.ed4 Qf4=) 16...Rec8 17.Qd3 (17.Qa4 a6 18.ba6 Bc6+=) 17...Rc7 (17...a6 18.Ne4 Qe7 19.Qb1=) 18.Ne4 Qe7 (18...Qd5 19.Nc3 Qh5 20.Na4=) 19.Ng3 (19.Qb1 Rac8=) 19...Rac8 20.Qa3 Ba8 (20...Qg5 21.dc5 Bb2 22.Qb2 Nc5 23.Qa3=) 21.Rd2 (21.dc5 Nc5 22.Bg7 Kg7=) 21...Qg5 (21...Bd5 22.dc5 Bb2 23.Rb2=) 22.Rdc2 h5 (22...Rd8 23.dc5 Nc5 24.Bg7 Kg7 25.Qb2 f6 26.f4=) 23.Qd3 (23.Bd3 h4 24.Ne4 Be4 25.Be4 h3+=) 23...h4 24.Ne4 Be4 (24...Qd5 25.f3=) 25.Qe4 Nf6 26.Qf3 Nd5 27.a4 cd4 28.Rc7 Rc7 29.Rc7 Nc7 30.Bd4 Bd4 31.ed4 Nd5 32.Qb3 Qg4 33.Qc4 Qd1 34.h3 Qa1 35.Kh2 Qe1 36.Qe2 Qe2 37.Be2 Nc3 38.Bc4 Na4 39.d5 Nb2 40.Bb3 ed5 41.Bd5 Nd3 42.Kg1 Nf4 43.Bc4 Kf8 44.Bf1 Ke7 45.g3 Ne6 46.Kg2 Nd4 47.gh4 Kd6 48.Bc4 Ne6 49.h5 gh5 50.Kg3 Kc5 51.Be2 f6 52.Bh5 Kb5 53.Bf7 Ng7 54.Kf4 Kb4 55.h4 a5 56.h5 Nh5 57.Bh5 a4 58.Kf5 a3 59.Bf7 Kc3 60.Kf6 b5 61.f4 b4 62.f5 b3 63.Bb3 Kb3 64.Ke7 a2 65.f6 a1Q 66.f7 Qe5 (66...Qe5 67.Kd7 Qf6–+) 0–1. Geisensetter,Kurt – Glotz,Dietmar, corr JBDDR'2792, 1981.

7.a4 Bb7

8.Nc3 Be7 9.d4 0–0 10.Bd3 Ne4 11.Qc2 Ndf6 12.Ne5 (better is 12.cd5!? Nc3 13.Bc3 cd4 14.Bd4=) 12...Nc3 13.Qc3 dc4 14.Nc4 Qd5 15.f3 cd4 16.Qd4 Qd4 (better is 16...Bc5!? 17.Qc3 Qg5=) 17.Bd4+= Bb4 18.Kf2 Rfd8 19.Rhd1 Nd5 20.Rac1 Rac8 21.Ne5 Bc5 22.Bc5 bc5 23.Be4 f6 24.Nd3 f5 (24...c4 25.Nf4 Nf4 26.Bb7 Rd1 27.Rd1 Rc7 28.ef4 Rb7 29.Rd8 Kf7+/–) 25.Bd5 Rd5 26.Rc5?? (26.e4 Rd6 27.Nc5 Rc5 28.Rd6 Rc1 29.Rd8 Kf7 30.Rd7 Kf6 31.Rb7 fe4 32.fe4 Rc2 33.Kf3 Rc3 34.Kg4+–) 26...Rcc5–/+ (< 26...Rdc5 27.Nc5 Bd5 28.Rc1+–) 27.Nc5 Rd1 (27...Rc5? 28.Rd8 Kf7 29.Rd7 Kf6 30.Rb7+–) 28.Nb7 Kf8 29.Ke2 Ra1 30.Nc5 Ke7 31.e4 fe4 32.Ke3 (better is 32.fe4 Ra2 33.Kf3–+) 32...ef3 33.gf3 Ra3 34.Ke4 Rc3 35.Kd4 Rf3 36.a5 Rf4 37.Ne4 h6 (better is 37...Rf5 38.Kc4 Rh5–+) 38.Kc5?? (38.b6 ab6 39.ab6–+) 38...Re4 39.Kc6 Re5 40.a6 Rd5 41.Kb7 (41.h3 Kf6–+) 41...Rb5 42.Ka7 (42.Kc6 Rb6 43.Kc5 Ra6–+) 42...Rb2 (better is 42...e5 43.Ka8–+) 43.Ka8 Ra2 0–1. Fehr,Wolfgang – Walther,Margareta, Unterfranken–ch HT–A, 1999.

8.cd5 ed5 9.Be2 Bd6 =.

8.cd5 Nd5 9.Na3 N5f6 =.

8.Be2 dc4 9.Na3 Be7 10.Nc4 0–0 11.0–0 Nd5 12.d3 Bf6 13.Nfe5 Ne5 14.Be5 Nc3 15.Qc2 Ne2 16.Qe2 Qd5 (better is 16...Be5!? 17.Ne5 Bg2 18.Kg2 Qg5 19.Ng4 f5+=) 17.e4+= Qd8 18.Bf6 Qf6 19.Ra3 e5 (19...Qd4 20.Qe3+=) 20.Qe3 (20.Qb2!?+/–) 20...Rfd8+= 21.f4 ef4 22.Rf4 Qd4 23.e5 (better is 23.Qd4!? Rd4 24.a5+/–) 23...Qe3= 24.Ne3 Re8 25.Nc4 Bd5 26.Rc3 (better is 26.a5!?=) 26...Bc4–/+ 27.Rfc4 Re5 28.d4 cd4 29.Rd4 Rae8 (29...Re7 30.Rcd3+=) 30.Rc1 (30.Rd7 h5=) 30...f6 (30...R5e7 31.Kf2–/+) 31.Rcd1 (31.Rd7!?=) 31...Kf7–/+ 32.Rd7 R8e7 33.R7d4 Re4 34.Kf1 Rd4 35.Rd4 Ke6 36.Ke2 Ke5 37.Kd3 f5 38.Ke3 g5 39.g3 h6 40.h4 (40.Rd8 Kf6 41.Kd3 Re4–/+) 40...Rc7–+ 41.Kd3? (41.Rd8 gh4 42.gh4 Rc4–+) 41...Rc5 (better is 41...Rc1!? 42.Rb4 Rg1 43.hg5 Rg3 44.Ke2 hg5 45.Rc4–+) 42.hg5 hg5 43.g4 Rd5 44.Rd5 Kd5 45.gf5 Ke5 46.f6 Kf6 47.Ke2 Ke5 48.Ke3 Kd5 (48...Kd5 49.Kf3 Kc4–+) 0–1. Turcot,Jean – Sauve,Richard (1985), Charlesbourg op2, 2004. (=1.Nf3 d5 2.b4 e6 3.Bb2 Nf6 4.b5 c5 5.e3 Nbd7 6.c4 b6 7.a4 Bb7)

8.Be2 Qc7 9.0–0 (9.cd5 ed5 10.0–0 Bd6=) 9...Ng4 (9...Bd6 10.cd5 Bd5 11.Nc3=) 10.h3 h5 (10...Ngf6 11.cd5 ed5 12.a5=) 11.g3 (11.cd5 Bd5 12.Re1 Rd8+=) 11...Bd6 (11...Ngf6 12.cd5 ed5 13.a5=) 12.hg4 (12.Bg7!? Rg8 13.Bc3+= (worse is 13.hg4 hg4 14.Nh4 Rg7–/+)) 12...hg4= 13.Nh4 Bg3 14.fg3 (14.a5–+) 14...Qg3 Theme: Double Attack 15.Ng2 d4! (15...d4 16.Bf3 gf3 17.Rf3 Bf3 18.Qf3 Qf3–+) 0–1. Klarius,Gerd – Rafnung,Skjalg, corr EU–ch M, 1987.

8.Be2 Bd6 9.0–0 Qc7 (9...0–0 10.cd5 Nd5 11.Na3=) 10.h3 (10.cd5 Nd5 11.Na3 0–0=) 10...dc4 (10...0–0 11.cd5 Nd5 12.Nc3=) 11.Bc4 (11.Na3 e5=) 11...Ne5 (11...0–0 12.d3=) 12.Ne5 Be5 13.Be5 (13.Nc3 Bh2 14.Kh1 0–0=) 13...Qe5 14.Nc3 Nd5 (14...Qg5 15.f3=) 15.Qb3 (15.Bd5 Bd5 16.Qc2 Rd8=) 15...Nc3 16.Qc3 (worse is 16.dc3 Qe4 17.f3 Qe3 18.Kh1 0–0–/+) 16...Qc3 (16...Qg5 17.f3=) 17.dc3 0–0–0 18.Rfd1 Rd1 (18...Be4 19.a5=) 19.Rd1 Rd8 ½–½. Merkl,M – Fischer,A, corr SOK–89–30, 1989.

8.Be2 Bd6 9.cd5 ed5 10.d4 0–0 11.0–0 Rc8 12.Ne5 (12.a5 c4=) 12...Re8 13.Nd7 Nd7 14.Bf3 (14.dc5 bc5 (< 14...Rc5 15.Nd2=) 15.Nd2 Qg5=+) 14...c4 (14...Qf6 15.a5=+) 15.Nc3 Nf6 (15...Qc7 16.Nd5 Bh2 17.Kh1=) 16.Ba3 Bc7 17.Qe2 Qd7 18.Bb4 Rcd8 (18...Qe6 19.Rfc1=) 19.a5 Bb8 (19...Rc8 20.a6 Ba8 21.Rac1+=) 20.g3 (20.Rfc1 Rc8=) 20...g6 (20...Rc8 21.Rfc1=) 21.Rfb1 (21.Rfc1 Rc8+=) 21...h5 (21...Rc8 22.Bg2+=) 22.Na4 Re6 23.Bg2 Ng4 24.ab6 ab6 25.Bh3 f5 26.Nc3 Nf6 27.Rb2 Rde8 28.Qf1 Kh7 29.Raa2 Ng8 30.Qd1 Nh6 31.Ne2 g5 32.Nc3 Qf7 33.Bg2+/– Rf6 34.Bf3 g4 35.Bg2 h4 36.Ne2 Ng8 37.Nf4 Rh6 38.Ra3 Kh8 39.Qb1 hg3 40.hg3 Qh7 41.Rba2 Nf6 42.Be1 Ne4 43.Qc2 Ng5 44.Qd1 Rh2 45.Ng6+= Kg7 46.Nh4 Rh4 47.gh4 Qh4 48.f4 g3?? 49.fg5+– f4 50.Ra7 Ba7 51.Ra7 Re7?? 52.Bb4?? Rf7+/– 53.Qf3 Qh7 54.Bd6 ½–½. Semenov,Viktor – Khagurov,N, Novorossijsk op, 1996.

8.Be2 Bd6 9.cd5 Nd5 10.0–0 0–0 11.Na3 =.

8.Be2 Bd6 9.cd5 Nd5 10.Nc3 0–0 =.

7.Nc3 Bb7

8.d3 Bd6 9.Be2 0–0 (9...dc4 10.dc4 Qc7 11.Qc2=) 10.Qc2 Qc7 (10...d4 11.ed4 cd4 12.Nd4 Bg2 13.Rg1+=) 11.h3 (11.cd5 ed5 12.d4 Rfc8+=) 11...Rad8 (11...d4 12.Nd1+=) 12.a4 (12.cd5 ed5 13.0–0 d4+=) 12...Ne5 13.0–0–0 (13.Ne5 Be5 14.0–0 Rfe8+=) 13...Ng6 (13...d4 14.Nb1–/+) 14.Rhg1 (14.cd5 Nd5 15.Nd5 Bd5–/+) 14...d4! 15.Nb1 (15.ed4 cd4 Combination) 15...e5 16.Nbd2 Rfe8 (16...a6 17.Rde1–/+) 17.Ng5 Qe7 (17...Be7 18.Bf3–/+) 18.Bf3 h6 (18...a6 19.Nde4 Ne4 20.Ne4 ab5 21.ab5–/+) 19.Nge4+= Ne4 20.Ne4 f5 (20...Nh4 21.Rde1–/+) 21.Nd6+= Rd6 22.Bb7 Qb7 23.Rde1 (23.g4 f4 24.g5 h5–/+) 23...e4–/+ 24.ed4 (24.Rd1 Ne5 25.de4 fe4 26.ed4 Nd3 27.Kb1 cd4–/+) 24...cd4 25.Ba3 Rdd8 26.Kb1 (26.Kd1 Nf4 27.de4 fe4–+) 26...Nf4–+ 27.de4 fe4 28.c5 (28.Bb2 d3 29.Qd2 Qf7–+) 28...Qd5 (better is 28...bc5!? 29.Bc5 a6–+) 29.c6–/+ d3 30.Qa2 Ne2 (30...Qa2 31.Ka2 d2 32.Rd1–/+) 31.Re2 de2 32.Qe2 (32.Re1 Qa2 33.Ka2 e3–+) 32...Qd3 (better is 32...e3!? 33.fe3 Qe4 34.Qc2 Qe3 35.Qa2 Kh8–+) 33.Qd3+= ed3 34.Rd1 Rd5 35.Rd2 Re4+= 36.Kb2 Ra4 37.Kb3 Ra5 38.Be7? Rab5–+ 39.Kc4 Rbc5! 40.Bc5 Rc5 41.Kd3 Rc6 42.Ke4 Rc4 43.Kf5 Rc5 44.Ke6 a5 45.f4 Rc4 46.f5–/+ Re4 47.Kd5 Re8 48.Kc6+= Re5 49.g4 b5 50.Rd8 Kh7–/+ 51.Kd6 Re3 52.Kc5 Rh3 53.Kb5 Rh4 54.g5 hg5 55.Ka5 Rf4 56.Rd4?? g4 57.Rf4+– 1–0. De Visser,Arno – Lomholt Hansen, corr ICCF, 1984.

8.cd5 ed5 9.d4 Bd6 10.dc5 bc5 11.Be2 (11.Bd3 0–0=) 11...0–0 12.0–0 a6 (12...Re8 13.Rc1=) 13.a4 (13.ba6 Bc6+=) 13...ab5 (13...Ne5 14.ba6 Ba6 15.Ba6 (worse is 15.Nd5 Be2 16.Qe2 Nf3 17.Qf3 Nd5–+) 15...Ra6 16.Nb5= (16.Nd5? Nf3 17.Qf3 Nd5–+)) 14.Nb5 Be7 15.Ne5 (15.Qc2 Ne4=) 15...Ne5 16.Be5 Qd7 17.Qc2 c4 (17...Ne4 18.f3 Nf6 19.Bd3=) 18.Rad1 (18.Nd4 Rfc8=) 18...Bc6 (18...Rfc8!?=) 19.Bc4+= Ra5 (19...Rfc8 20.Bf6 Bf6 21.Bd3+=) 20.Bf6 (20.Bd3 h6+–) 20...Bf6+/– 21.Bd5 (21.e4 d4+/–) 21...Bb5 (21...Bd5 22.e4 Qc6 23.Qd2 Be4 24.Qa5 Bg2 25.Qc7 Qc7 26.Nc7 Bf1 27.Kf1+=) 22.ab5 (22.Be4 Qc8 23.Bh7 Kh8 24.ab5 g6 25.Qc8 Rc8 26.Bg6 fg6+/–) 22...Qb5+/– 23.Be4 Qh5 (23...g6 24.Rd5 Qa6 25.Ra5 Qa5 26.Rd1+/–) 24.Rd7 Be5 25.f4 (25.g3 Bf6+/–) 25...Bf6 26.Rf3 (26.Rc1 Ra1+/–) 26...Qh4 (26...Ra1 27.Rd1 Rd1 28.Qd1+/–) 27.Rd1 Ra1?? (better is 27...h6+/–) 28.Rh3+– Rd1 29.Qd1 Rd8 30.Qe2 1–0. Wall,Bill – Farmer,Steve, Palo Alto, CA, 1989.

8.Be2 Qc7 9.0–0 Bd6 10.h3 0–0–0 (10...0–0!?=) 11.cd5+= ed5 12.d4 Rhe8 Black prepares the advance c4 13.Bd3 (13.dc5 Nc5 14.Rc1 Nfe4+=) 13...Ne4 14.Rc1 f5 15.Ne2 (15.dc5 Ndc5 16.Na4 Kb8=) 15...c4= 16.Qa4 Kb8 (16...cd3? 17.Rc7 Kc7 18.Nf4+–) 17.Be4 (17.Bc4!? dc4 18.Rc4=) 17...fe4+= (worse is 17...Re4 18.Ba3+=) 18.Nd2 Nf6 19.Ba3 Bc8 20.Bd6 Rd6 21.Nb1 Nh5 22.Na3 (better is 22.Nbc3!?+=) 22...Rg6–+ 23.Kh1 Bh3 (better is 23...Qe7!? 24.Nc2 Qg5–+) 24.gh3–/+ Qf7 25.Ng1 Qf6 26.Nc4?? (better is 26.Qd1 Qh4 27.Qe2–/+) 26...Qg5 (26...Qg5 27.Qa7 Ka7 28.Nb6 Qg2; 26...dc4?! 27.Qc4 (worse is 27.Rc4 Qg5 28.Qa7 Ka7 29.Rc7 Kb8 30.Rb7 Kb7 31.Nf3 Qg2) 27...Qg5 28.Qc7 Ka8 29.Qh2 Qb5 30.a4–/+) 0–1. Steppuhn,Thomas (2035) – Wilk,Tomasz (1665), Open B – XVII Miedzynarodowy Festiwal S Poland, 2012.

7.Nc3 Bd6

8.d4 0–0 9.cd5+= Nd5 10.dc5 Nc5 11.Nd5 ed5 12.Qd5 Be6 13.Qd4 f6 14.Rd1 Be7 15.Bc4 Qd4 16.Be6 (16.Nd4? Bc4 17.Ba3 Rfe8–+; 16.Rd4 Bc4 17.Rc4 Nd3 18.Ke2 Nb2–+) 16...Ne6 17.Nd4 (worse is 17.Rd4 Nd4 18.ed4 a6–/+) 17...Nd4 18.Rd4 (18.Bd4 a6 19.a4 ab5 20.ab5 Rfc8+/–) 18...Rfd8 (18...a6!? 19.Ke2 ab5+=) 19.Ke2 Rd4 20.Bd4 Ba3 21.Rd1 Rc8 22.Kd3 Rc1 23.Rc1 Bc1 24.Kc4 Bd2 25.Kd5 Be1 26.e4 Kf7 27.Kc6 1–0. PeterRs – Szkodnikow_i_ofiar, ChessWorld.net, 2015.

8.d4 Bb7 9.cd5 ed5 10.dc5 bc5 11.Bd3 =.

8.cd5 ed5 9.d4 Bb7 10.Bd3 c4 A) 11.Bc2 A1) 11...a6 12.Nh4 (12.ba6 Ra6 13.0–0 0–0 14.Nb5 Be7 15.a4=) 12...Bb4 13.a3 Bf8 14.ba6 Ra6 15.Nf5=; A2) 11...0–0 12.0–0 (12.Nh4 g6 13.0–0 Ne4 14.Nf3 Re8 15.Qb1=) 12...Re8 13.Bf5 a6 14.Qc2 Qe7 15.Rfc1=; B) 11.Bf5 B1) 11...a6 12.0–0 (12.ba6 Ba6 13.a4 0–0 14.Ba3 Ba3 15.Ra3=) 12...0–0 13.Qc2 Qe7 14.ba6 Bc6 15.Rae1=; B2) 11...Qe7 12.Qc2 (12.0–0 0–0 13.Qc2 a6 14.ba6 Bc6 15.Rae1=) 12...0–0 13.0–0 Rfe8 14.Rfc1 g6 15.Bh3=; B3) 11...0–0 12.0–0 (12.Qc2 a6 13.0–0 Re8 14.a4 Qe7 15.ba6=) 12...Qe7 13.Qc2 a6 14.ba6 Bc6 15.e4=.

8.cd5 ed5 9.d4 Bb7 10.Bd3 Qc7 11.0–0 0–0 (11...c4 12.Bf5 0–0 13.a4 a6 14.Ba3 Ba3 15.Ra3=) 12.Bf5 (12.a4 Rfe8 13.Bf5 cd4 14.ed4 Bb4 15.Qd3=) 12...Rfe8 13.a4 cd4 14.ed4 Bf4 15.Qd3 =.

8.cd5 ed5 9.d4 Bb7 10.Bd3 Qc7 11.a4 A) 11...Rc8 12.0–0 (12.a5 ba5 13.dc5 Nc5 14.Bf5 Rb8 15.Na4=) 12...0–0 13.Rc1 Rfe8 14.Bf5 g6 15.Bh3=; B) 11...0–0 12.0–0 (12.Bf5 Rfe8 13.Rc1 Rac8 14.0–0 c4 15.Qc2=) 12...Rfe8 13.Rc1 c4 14.Bf5 g6 15.Bh3=.

8.cd5 ed5 9.d4 Bb7 10.Bd3 Qc7 11.Rc1 c4 (11...0–0 12.0–0 c4 13.Bf5 a6 14.Qc2 Rfc8 15.a4=) 12.Bf5 (12.Bc2 0–0 13.Bf5 Rfc8 14.0–0 a6 15.a4=) 12...0–0 13.0–0 Rfe8 (13...a6 14.Qc2 Rfc8 15.a4=) 14.Qa4 (14.Qc2 a6 15.a4=) 14...g6 (14...a6 15.Qc2=) 15.Bh3 (15.Bb1=) 15...Ne4 16.Ne4 Re4 17.Ba3 Ba3 18.Qa3 a6 19.ba6 Ra6 20.Qb4 Bc6 21.Rc2 Ra4 22.Qc3 Re8 23.Rb2 Qd6 (23...Rea8 24.Ra1=) 24.Qd2+= Rb8 (24...b5 25.Rfb1+=) 25.Rfb1 f5 26.g3 Ra3 27.Qc1 Rba8 (27...b5 28.Bg2+=) 28.Ne5 (28.Qc2!?=) 28...Ra2–/+ 29.Nd7 Rb2 (29...Bd7?! 30.Rb6 Bc6 31.Bg2+=) 30.Nf6 Qf6 31.Rb2 b5 32.Bg2 Qd6 33.Qb1 Ra4 34.Bf3 Kg7 (34...b4 35.Bd1 b3 36.Kg2–+) 35.Bd1–/+ Ra3 0–1. michaelbuss (2725) – dont29232 (2305), ChessWorld.net, 2003.

8.cd5 ed5 9.d4 Bb7 10.Bd3 Qc7 11.dc5 bc5 12.Rc1 (12.0–0 0–0 13.h3 Ne5 14.Ne5 Be5 15.Rc1=) 12...0–0 13.0–0 d4 14.ed4 Bf4 15.Rc2 +=.

7.d3 Bb7

8.Nbd2 Bd6 9.Be2 =.

8.cd5 Nd5 9.Nc3 N7f6 =.

8.Nbd2 Qc7

9.Be2 a6 =.

9.g3 Bd6+= 10.Bg2 0–0 11.0–0 (11.cd5 Bd5 12.e4 Bb7=) 11...Rfd8 (11...a6 12.Qb3+=) 12.Rc1 (12.cd5 Bd5 13.Qe2 e5=) 12...a6 13.a4 Ne5 (better is 13...e5!?+=) 14.Ne5+= Be5 15.d4 Bd6 16.Qc2 (16.dc5!? Bc5 17.Bf6 gf6 18.cd5 ab5 19.d6 Rd6 20.Bb7 Qb7 21.Qg4 Kf8 22.Ne4=) 16...ab5 (16...cd4 17.cd5 Qc2 18.Rc2+=) 17.ab5 (better is 17.dc5 Bc5 18.Bf6 gf6 19.ab5=) 17...h5 (17...cd4 18.cd5 Qc2 19.Rc2 de3 20.Bf6 gf6 21.Ne4=) 18.e4 (better is 18.dc5!? Bc5 19.Bf6 gf6 20.cd5 Bd5 21.Bd5 Rd5 22.Rfd1+=) 18...de4 (18...Ne4 19.Ne4 de4 20.dc5 Bc5 21.Be4+=) 19.Ne4 (19.dc5 Bc5 20.Bf6 gf6 21.Ne4 Bd4=) 19...Ne4 (19...Be4 20.Be4 Ra2 21.Rfe1 cd4 22.Qb3–/+) 20.Be4 Be4 (20...cd4 21.Bd4 Bg3 22.fg3 Rd4 23.Bb7 Qb7 24.Rcd1–/+) 21.Qe4= cd4 (21...Ra2 22.dc5 Bc5 23.Rc2=) 22.Bd4 Bc5 (22...Ra3 23.Rfd1=) 23.Be5 (23.Bc5 Qc5 24.Ra1 Rac8+=) 23...Qe7 24.Qe2 (24.Ra1 Ra1 25.Ra1 Qg5=) 24...Qg5+= 25.Bf4 Qf5 26.Rfe1 Ra4 27.Qc2 Qc2+= 28.Rc2 Rd4 29.Rec1 Rd3 30.Rc3 Rc3 31.Rc3 Ra2 32.Be3= Be3 33.Re3 Kf8 34.Kg2 Rc2 35.Re4 Ke7+= 36.h4 f5 37.Rd4+= Rc3 38.Kf1 Rc2 39.Kg2 Rc3 40.Kf1 Rc2 41.Kg2 e5+= 42.Rd5 Rc4 43.Re5 Kf6 44.f4 Re4 45.Rd5 Ke6 46.Rd2 g6 47.Rc2= Rd4 48.Kf2 Rd5 49.Rc6 Rd6 50.Rc2 Kd5 51.Ke3 Ke6 52.Rc4 ½–½. Castro Couceiro,Silvia – Bustabad Rapa,Eusebio, Ortigueira op 1st, 2003.

9.Be2 e5

10.0–0 A) 10...Bd6 A1) 11.Nh4 e4 (11...g6 12.cd5 Nd5 13.Qb3 0–0 14.Bf3 N7f6 15.Nc4 a5 16.g3 a4; 11...d4 12.Nf5 0–0 13.Bf3 Bf3 14.Qf3 g6 15.Nd6 Qd6 16.Qc6 Qe7) 12.de4 de4 13.Nf5 Bh2 14.Kh1 g6 15.g3 gf5 16.Kh2 0–0–0; A2) 11.cd5 Nd5 (11...Bd5 12.e4 Bb7 13.a4 0–0 14.Qb3 a6 15.Bc3 ab5 16.ab5 Nh5) 12.Qb3 0–0 13.Nc4 h6 14.h3 a6 15.a4 Rfe8 16.Nfd2 Be7; B) 10...e4 11.Ne1 (11.Nh4 Bd6 12.de4 de4 13.h3 0–0 14.Nf5 Bh2 15.Kh1 Be5 16.Qc2 g6; 11.de4 de4 12.Nh4 Bd6 13.g3 Be5 14.Qc2 Bb2 15.Qb2 Qe5 16.Qe5 Ne5) 11...Bd6 (11...ed3 12.Nd3 Bd6 13.g3 0–0 14.cd5 Bd5 15.Qa4 Rfe8 16.Rac1 Bb7) 12.cd5 ed3 13.Nd3 0–0 14.e4 c4 15.Nc4 Bh2 16.Kh1 Qc4; C) 10...d4 C1) 11.Nh4 g6 (11...Bd6 12.Nf5 0–0 13.Bf3 Bf3 14.Qf3 g6 15.Nd6 Qd6 16.Qc6 Qe7) 12.Bf3 Bd6 13.Bb7 Qb7 14.ed4 ed4 15.Qe2 Kf8 16.f3 Kg7; C2) 11.Ng5 Be7 (11...h6 12.Nge4 Be7 13.Ng3 g6 14.Bf3 0–0 15.Bb7 Qb7 16.Qe2 Rfe8) 12.Bf3 0–0 13.Re1 h6 14.Bb7 Qb7 15.Qf3 Qf3 16.Ngf3 Bd6; C3) 11.Re1 Bd6 (11...g6 12.Ng5 de3 13.fe3 Bh6 14.h4 0–0 15.Bf3 a6 16.ba6 Ra6; 11...de3 12.fe3 Be7 13.Nh4 g6 14.Bf3 0–0 15.Bb7 Qb7 16.Nhf3 Qc7; 11...Be7 12.ed4 cd4 13.Bf1 Kf8 14.g3 g6 15.Bg2 Bd6 16.Ng5 Bg2) 12.Ng5 h6 13.Nge4 Ne4 14.Ne4 Be4 15.de4 0–0 16.Qd3 Nf6; C4) 11.Qb3 Be7 (11...Bd6 12.Ng5 0–0 13.h3 h6 14.Nge4 Ne4 15.Ne4 Be7 16.Ng3 f5) 12.Nh4 g6 13.Bf3 0–0 14.Bb7 Qb7 15.Nhf3 a6 16.h3 ab5.

10.Qc2 d4 A) 11.Qb3 Be7 (11...g6 12.e4 Be7 13.0–0 0–0 14.Rfe1 Ne8 15.h3 Nd6 16.h4 a6; 11...Bd6 12.0–0 0–0 13.Ng5 e4 14.g3 de3 15.Nde4 Ne4 16.Ne4 Be5) 12.e4 Nf8 13.Kf1 Ne6 14.g3 0–0 15.Kg2 a6 16.a4 a5; B) 11.h3 Be7 (11...g6 12.e4 Nh5 13.0–0 Nf4 14.Nb3 Be7 15.g3 Nh3 16.Kg2 Ng5; 11...Bd6 12.0–0 h6 13.Nh4 g6 14.e4 a6 15.ba6 Ra6 16.a4 0–0; 11...h6 12.0–0 Bd6 13.Nh4 g6 14.Bf3 0–0 15.a4 a5 16.Bb7 Qb7) 12.0–0 0–0 13.a4 Rfe8 14.a5 ba5 15.Qa4 a6 16.Qa5 Qa5.

10.Qc2 Be7 11.cd5 Nd5 12.0–0 0–0 13.Qb3 h6 14.Rac1 Bf6 15.g3 a5 16.ba6 Ra6.

10.cd5 Bd5 11.Nc4 (11.0–0 Bd6 12.e4 Bb7 13.Nc4 0–0 14.a4 a6 15.ba6 Ba6 16.Qb3 Ra7; 11.Qa4 Bd6 (11...a6 12.ba6 b5 13.Qh4 Ra6 14.a4 ba4 15.Ra4 Ra4 16.Qa4 Bd6; 11...a5 12.0–0 Bd6 13.e4 Bb7 14.Nc4 0–0 15.Bc3 h6 16.Nd6 Qd6) 12.0–0 a6 13.ba6 b5 14.Qc2 Ra6 15.a4 Ra4 16.Ra4 ba4; 11.Qc2 Bd6 (11...h6 12.Nc4 Bd6 13.Nh4 g6 14.0–0 0–0 15.f4 ef4 16.Nd6 Qd6; 11...g6 12.e4 Be6 13.d4 ed4 14.Nd4 Bh6 15.Ne6 fe6 16.Nf3 0–0) 12.Nc4 0–0 13.0–0 Rfe8 14.e4 Bb7 15.Qb3 h6 16.a4 a6; 11.h3 Bd6 12.0–0 a6 13.e4 Bb7 14.ba6 Ra6 15.a4 0–0 16.Nc4 Re8) 11...Bc4 (11...Bd6 12.Qa4 a6 13.ba6 0–0 14.Nd6 Qd6 15.0–0 b5 16.Qh4 Ra6) 12.dc4 Bd6 13.h3 (13.Nd2 0–0 14.Bf3 Rad8 15.Qc2 e4 16.Ne4 Be5) 13...Rd8 (13...e4 14.Nd2 0–0 15.Qc2 Be5 16.Rb1 a6) 14.Qc2 (14.Qd2 e4 15.Nh4 Be5 16.0–0 Bb2) 14...e4 15.Nd2 Be5 16.Be5 Qe5 17.0–0 0–0 18.Rfd1 Rfe8 19.Rac1 Nf8 20.Nb1 Ng6 21.Qc3 Qg5 22.Qa3 Nh4 23.Bf1?? (better is 23.g3 Ra8 24.Nc3=) 23...Nf3–+ 24.Kh1 Ng4! 25.Qb2 (25.hg4 Qh6 Mate attack) 25…Qe5 (25...Qe5 26.g3 Qb2 27.Rc2 Qc2 28.Re1 Qf2 29.Bg2 Qe1 30.Bf1 Qf1) 0–1. Yang,Yimang – Leal,Jorge (1775), Caldas Novas BRA, World Ch U14 (b), 2011.

10.cd5 Nd5 A) 11.Qb3 Be7 (11...Bd6 12.0–0 0–0 13.a4 Nb4 14.Nc4 Bd5 15.h3 Be7 16.Nfd2 a6) 12.g3 0–0 13.0–0 Bf6 14.Rac1 h6 15.Rfe1 Rfe8 16.a3 Rad8; B) 11.Nc4 Bd6 12.0–0 0–0 13.Qb3 h6 14.a4 a6 15.h3 Rfe8 16.Nd6 Qd6; C) 11.h3 Bd6 (11...Be7 12.Qb3 0–0 13.0–0 h6 14.a4 Bf6 15.Nc4 Nb4 16.Nfd2 Bd5; 11...a6 12.ba6 Ra6 13.Qb3 Ra7 14.0–0 Bd6 15.a4 0–0 16.Nc4 Bc6; 11...g6 12.0–0 Bg7 13.Qb3 0–0 14.Ng5 N7f6 15.Bf3 Rfe8 16.Nc4 a6; 11...a5 12.Nc4 Bd6 13.0–0 0–0 14.Qd2 Rfe8 15.g3 a4 16.e4 N5f6; 11...h6 12.0–0 Bd6 13.Nc4 0–0 14.Qb3 a5 15.a4 Rfe8 16.Nfd2 N7f6) 12.Qb3 0–0 13.0–0 a5 14.ba6 Ra6 15.d4 Raa8 16.Bc4 N5f6; D) 11.Ne4 Be7 (11...c4 12.dc4 Ne3 13.fe3 Be4 14.0–0 Bc5 15.Qb3 h6 16.Nd2 Bb7; 11...h6 12.0–0 Be7 13.Qb3 0–0 14.a4 Nb4 15.Nfd2 Nf6 16.Rac1 Ne4; 11...Rd8 12.0–0 Be7 13.Qb3 0–0 14.Rac1 h6 15.Ng3 Bf6 16.Rfd1 Rfe8) 12.0–0 0–0 13.Qb3 h6 14.h3 N5f6 15.Qc4 a6 16.a4 ab5; E) 11.0–0 Bd6 (11...Be7 12.Nc4 Bf6 13.g3 a6 14.e4 Nb4 15.ba6 Ra6 16.a3 Nc6; 11...g6 12.Qb3 Bd6 13.Ng5 0–0 14.Bf3 N7f6 15.Nc4 Rad8 16.e4 h6; 11...h6 12.Nh4 g6 13.Qb3 Be7 14.Bf3 Qd6 15.Ne4 Qc7 16.g3 0–0) 12.Qb3 0–0 13.a4 N7f6 14.Nc4 e4 15.Nfe5 Rfe8 16.Nd6 Qd6.

7.d3 Bd6

8.cd5 ed5 9.Be2 =+.

8.Be2 =.

7.d4 Bb7

8.Be2 Rc8 9.0–0 Ne4 10.Nc3 Nc3 11.Bc3 Bd6 12.Qc2 cd4 13.Bd4 dc4 14.Bc4 Bf3 15.gf3 e5 16.Bb2 Qh4 17.Qe2 Qc4 0–1. mihai740609 – 1996mati (1660), internet, 2014.

8.Be2 Be7 9.0–0 0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.d4 Nbd7).

7.d4 cd4

8.ed4 Bb4 9.Bc3 Bc3 10.Nc3 Bb7 11.cd5 Nd5 12.Nd5 Bd5 (worse is 12...ed5 13.Bd3+=) 13.Be2 Rc8 14.0–0 0–0 15.Qa4 Qc7 16.Qa3 Qb7 (16...Qc3 17.Qc3 Rc3 18.Ne5 Ne5 19.de5+=) 17.Rfc1= a6 (17...Nf6 18.Qd6+=) 18.Qb2 (better is 18.ba6!? Qa7 19.Rc8 Rc8 20.Rc1 Rc1 21.Qc1+/–) 18...Rc1 19.Rc1 Rc8 (19...ab5 20.a3+=) 20.a4 (20.ba6 Rc1 21.Qc1 Qb8+/–) 20...Nf6 (20...ab5 21.ab5 Ra8 22.Qc3=) 21.Rc8 (21.ba6!? Qa8 22.Rc8 Qc8 23.Ne5+/–) 21...Qc8= 22.Nd2 (22.ba6 Bf3 23.Bf3 Qa6 24.Qb5=) 22...Ne4 (better is 22...ab5!? 23.Qb5 Qc1 24.Nf1 Qc7=) 23.Ne4+/– Be4 ½–½. Komidzierski,Eugeniusz (2000) – Zasztowt,Helena (1800), Rowy Seniors op 7th Poland, 2003.

8.ed4 Bb7+= 9.Nc3 Rc8 10.Be2 dc4 11.0–0 Bd6 12.Nd2 Bd5 13.Qa4 Pawn c4, live or die! 13...Qc7 14.h3 0–0 15.Ba3 Ba3 16.Qa3 Qb7 17.Bf3 Bf3 18.Nf3 Rfd8 19.Rac1 Rc7 20.Rc2 Rdc8 21.Rfc1 Ne4 22.Nd1 Qd5 23.Qb4 Qd6 24.Qd6 Nd6 25.a4 Ne4 26.Nc3 Nc3 (26...Ndf6!? 27.Ne5 Nd6–/+) 27.Rc3+= Nf6 28.Ne5 Ne4 29.Rc4 Rc4 30.Rc4 (30.Nc4?? Nd6 31.Kf1 Rc4 32.Rc4 Nc4–+) 30...Rc4 31.Nc4 Nc3 32.Ne5 (32.Kf1!?+=) 32...Na4–/+ 33.Nc6 Nc3 34.Na7 Ne2 35.Kf1 Nd4 36.Ke1 Kf8 37.Kd2 Ke8 38.Kd3 Nf5 39.Nc8 Kd8 40.Nb6 Nd6 41.Nc4 Nb5 42.f4 Ke7 43.Nd2 Nd6 44.g4 h6 45.Nf3 g6 46.Kd4 Nb5 47.Kc5 Nc3 48.Kd4 Nd1 49.h4 White prepares g5 49...h5 50.g5 Nb2 51.Ne5 Na4 52.Nc4 Kf8 53.Na5 Nb6 54.Ke5 Nc8 55.Nc6 Kg7 56.Nd4 Ne7 57.Ke4 Nf5 58.Nf3 Kf8 59.Ke5 Ke7 60.Ke4 Nd6 61.Ke5 Nb5 62.Ke4 Nc3 63.Kd3 Nd5 64.Ke4 f5 65.Ke5 Nb4 66.Kd4 Nc6 67.Kc5 Kd7 68.Nd2 e5 69.fe5 Ne5 70.Kd5 Nd3 71.Nf3 Ke7 72.Kd4 Nf4 73.Ke5 Ng2 74.Kd5 Ne3 75.Kd4 Ng4 76.Kd5 Kd7 77.Ne1 Nh2 78.Ke5 Ke7 79.Kd5 Ng4 80.Nf3 Kd7 ½–½. Fernandez,Michael (1975) – Schuster,Martin (2205), Hastings ENG, 2014.

8.Nd4!? Bb7 9.Nc6 +=.

8.Nd4!? Bb7 9.cd5 Bb4 10.Bc3 Nd5 11.Bb4 Nb4 12.Nc3 =.

7.Be2 Bd6

8.0–0 0–0 9.Nc3 =.

8.0–0 Bb7 9.a4 Rc8 (9...0–0 10.cd5 Nd5 11.Na3=) 10.d4 (10.cd5 ed5 11.d3 0–0=) 10...0–0 11.Nbd2 (11.cd5 Bd5 12.Nc3 Bb7=) 11...Qc7 (11...cd4 12.Nd4 Qc7 13.f4=) 12.Rc1 (12.dc5 bc5 13.cd5 ed5=) 12...Qb8 (12...Rfd8 13.dc5 Nc5 14.Bf6 gf6 15.cd5 Bd5 16.h3=) 13.Qb3 (13.dc5 Rc5 14.Ba3 Rcc8 15.Bd6 Qd6 16.cd5 Bd5=) 13...e5 (better is 13...cd4!? 14.ed4 Ne4+=) 14.de5+= Ne5 15.Rfd1 (15.Be5 Be5 16.cd5 Bd5=) 15...Rcd8 (15...dc4 16.Qc3 Bf3 17.Nf3+=) 16.cd5 (16.Be5 Be5 17.cd5 Bd5=) 16...Bd5= 17.Qa3 (17.Qc3 Rfe8=) 17...Nf3+= 18.Nf3 Bf3 19.Bf3 Bh2 20.Kh1 Be5 21.Qa1 Bb2 22.Qb2 Rd1 23.Rd1 Rd8 24.Rd8 Qd8 25.Qe5 Kf8 26.Kg1 Ne8 27.Qf5 g6 28.Qe5 Kg8 29.g4 Qc8 30.Qe7 Nc7 31.g5 Qb8 32.Bc6 Qc8 33.Kf1 Qh3 34.Ke1 Qh2 35.Qd8 (35.f4 Qg1 36.Ke2 Qg4 37.Kd2 Qc8+=) ½–½. Dluhosch – Schmitt, BdF, 1985.

8.0–0 Bb7 9.cd5 ed5 10.d4 0–0 11.Nc3 (11.dc5 bc5 12.Nc3 Rc8=) 11...Re8 (11...c4 12.Qc2=) 12.Kh1 (12.dc5 bc5 13.Rc1 Qc7=) 12...Qe7 (12...c4 13.a4=+) 13.a4 (13.dc5 bc5 14.Rc1 Ne5=+) 13...c4 14.Nd2 (14.Nh4 Qe6=+) 14...Bb4 (14...Rec8 15.e4 Ne4 16.Nce4 de4 17.Nc4=) 15.Bf3 Nf8 (15...Rec8 16.Qc2=+) 16.Re1 (16.Qc2 a6=+) 16...Ne6 17.e4 Bc3 (17...Ng5 A) 18.Nd5?? Bd5 19.Ba3 Ba3–+ (19...Nfe4?! 20.Ne4 Ne4 21.Be4 Be4 22.Re4 Qe4 23.Bb4–+; 19...Be4?! 20.Be4 Nge4 21.Ne4 Ne4 22.Re4 Qe4 23.Bb4–+; 19...Nge4?! 20.Ne4 Be4 21.Be4 Ne4 22.Re4 Qe4 23.Bb4–+); B) 18.e5 Nf3 19.Qf3=+) 18.Bc3= de4 19.Ne4 Nd5 20.Bb2 Qc7 21.Qd2 Nef4 22.Nc3 Nc3=+ 23.Qc3 Bf3 24.Qf3 Nd3 25.Re8 Re8 26.Bc3 h6 27.g3 Qe7=+ 28.Ra2 Qe4 29.Kg2 f5 30.a5 Qd4 31.Bd4 Ne1 32.Kf1 Nf3 33.ab6 ab6 34.Bc3 Nh2 35.Kg2 Ng4 36.Ra7 Re2 37.Bd4 c3 38.Rg7= Kf8 39.Rc7 c2 40.Bb6 Ne5 41.Be3?? Nd3?? 42.Kf3 c1Q?? 43.Bc1+– Nc1 44.Rc1 Rb2 45.Rc5 f4 46.gf4 Kg7 47.Kg4 Rf2 48.Rc7 Kf6 49.Rc5?? Ke7?? 50.Kf5 h5 51.Kg5 Rb2? (better is 51...h4+–) 1–0. Kiss,Laszlo (2295) – Kiss,Pal (2410), Eger op, 1992.

8.Nc3 0–0 =.

8.cd5 ed5 9.0–0 0–0 10.d4 c4 11.Nc3 Bb7 12.Qc2 Re8 13.a4 Ne4 14.Ba3 Bc7 15.Rfe1 Ndf6 16.Bf1 Nc3 17.Qc3 Ne4 18.Qc2 Qf6 19.Bb4 White prepares a5 19...Bc8 20.a5 Bg4 21.Be2 Rac8 22.ab6 ab6 23.Ra6 Re6 24.Rea1 g5 25.Ra8 Ree8 26.Rc8 Rc8 27.h3 Bf5 28.Qc1 g4 29.hg4 Bg4 30.Qa3 h5 31.Be7 Qe6 32.Bh4 Bd6 33.Qa2 Nc3–+ 34.Qc2 Ne2 35.Qe2 Qe4 36.Bg3 Be7 37.Qd1 c3–/+ 38.Rc1 c2 39.Qf1 Ba3 40.Ne5 Bc1 41.Qc1 Be2 42.Nc6 Bb5 43.f3 Qe6 44.Na7 Qe3! 45.Qe3 c1Q 46.Qc1 Rc1 47.Kf2 Bd7 0–1. Magomedov,Murad – Bimiev,Ahmad, Kislovodsk RUS, Narzan Open, 2012.

6.Nf3 Nb6

7.Na3 Bd6 =.

7.Na3 Bd7 8.cd5 ed5 9.Nc2 (9.Be2 c4=) 9...Be7 10.a4 0–0 11.Ne5 Be6 (11...Bf5 12.a5 Nbd7 13.Bd3 Bd3 14.Nd3=+) 12.Bd3 (12.a5 Nbd7=+) 12...Ne4 (12...c4 13.Be2–/+) 13.f3 (13.a5 Nd7=) 13...Nd6 14.0–0 Qc7 (14...c4 15.Be2=+) 15.f4 (15.a5 Nbc4 16.Bc4 dc4–/+) 15...Ne4 (15...f6 16.Qh5 Ne4 17.f5=) 16.f5 Bc8 17.Be4 (17.a5 Nd7 18.Nd7 Bd7 19.Be4 de4=) 17...de4 18.Qg4 (better is 18.a5 Nd7 19.Nd7 Qd7 20.Qg4+=) 18...Bf6 (18...f6 19.a5 fe5 20.ab6 Qb6 21.Qe4 Qb5 22.Be5=) 19.Qe4 (19.a5!? Nd5 20.Qe4+/–) 19...Re8= 20.d4 (better is 20.a5!? Nd7 21.d4=+). Gross,Wilhelm – Merten,Rainer, xx/04, 1990.

7.Na3 Be7 8.Be2 0–0 9.0–0 Bd7 10.Qb3 Ne4 (10...a6 11.d3=) 11.d3 Nd6 12.Nc2 a5 13.Ne5 (13.a4 Bf6=) 13...Be8 14.Na3 (14.Bg4 Bf6 15.Na3 Qc7=) 14...f6 15.Nf3 dc4 (15...e5 16.Nd2=) 16.dc4 e5 17.Rad1 Qc7 18.Nd2 Bf7 (18...a4 19.Qc3=) 19.e4 (19.Bd3 Rad8=) 19...Bg6 (19...Rad8 20.Qe3=) 20.Bf3 (20.Qe3 Rad8=) 20...Nf7 (20...Rad8 21.Qe3=) 21.h4 (21.Bg4 Rad8=) 21...Nd8 (21...Nh6 22.Be2=) 22.Bg4 Bf7 23.Nc2 (23.Qh3 Na4 24.Bc1 Bd6+=) 23...Ne6= 24.Ne3 Nd4 25.Bd4 cd4 26.Nd5 Nd5 27.cd5 a4 28.Qc4 Qa5 29.f4 Bd6 30.fe5 fe5 31.Rf3 h5 32.Be6= (White gets deadly initiative) 32...Be6 33.de6 Kh8 34.Qd5 Rf3 35.Nf3 Qc7 36.Ng5 Be7 37.Nf7 Kh7 38.Ne5 Bh4 39.Nf3 Bf6 40.Qh5 Kg8 41.e5 (41...Be7 42.Qf7 (42.Nd4?! Rf8+–; 42.Rd4?! Bc5=) 42...Kh7 43.Ng5 Kh6 44.Rd3+–; 41.Nd4?! Rf8 42.Qd5 Bd4 43.Qd4 Re8+–) 1–0. Podolski,Horst (2400) – Plater,Kazimierz (2400), mT Legion Warszawa–Start Lodz, 1967.

7.a4 Bd6 8.cd5 ed5 9.a5 =.

7.Qb3 a5 8.a4 g6 (8...Bd6 9.d3=) 9.Be2 Bg7 10.0–0 0–0 11.Nc3 Ne4 12.d4 Nc3 13.Bc3 dc4 (worse is 13...Nc4 14.dc5 (14.Bc4?! dc4 15.Qc4 Qd5+=) 14...Bc3 15.Qc3+/–) 14.Bc4 Nc4 15.Qc4 cd4 16.Bd4 (worse is 16.ed4 b6+=; worse is 16.Nd4 e5 17.Nf3 Be6=) 16...Bd4 17.Nd4 Qf6 18.Nf3 b6 19.Qc6 (better is 19.Qc7!?+/–) 19...Rb8= 20.Nd4 Qe7 (20...Bb7!? 21.Qc7 Rfc8=) 21.Qf3 Bb7 22.Nc6 Bc6 23.Qc6 Qf6 24.Rac1 Qe5 25.Rc4 h5 26.Rfc1 Kg7 27.Qf3 Qf6 28.Qf6 Kf6 29.Rc6 Kg7 30.Rd1 Rfe8 31.Rdd6 Red8? (31...Rec8 32.Kf1+=) 32.g3 (better is 32.Rb6 Rbc8 33.f4 Rd6 34.Rd6+–) 32...Rd6+= 33.Rd6 Kf6 34.Rc6 Ke7 35.Kf1 Kd7 36.Ke2 f5 37.Kd3 g5 38.Kd4+– e5? 39.Ke5 Re8 40.Kf5 Rf8 41.Kg5 Rf2 42.h4 Ra2 43.Rb6 Ra4 44.Ra6 Re4 45.b6 Kc6 46.Ra5 Kb6 47.Kh5?? Re3?? 48.Rg5+– Kc6 49.Kh6 Kd6 50.Kg7 Ke6 51.h5 Re1 52.h6 Rh1 53.h7 Ra1 54.h8Q Ra7 55.Kh6 Kd6 56.Qf8 (56.Qf8 Ke6 57.Qe8 Kd6 58.Qd8 Ke6 59.Qb6 Kd7 60.Rg7 Kc8 61.Qc5 Kd8 62.Qf8; 56.Qf6 Kd7 57.Rg7 Ke8 58.Qe6 Re7 59.Qe7) 1–0. kannisogoet – krasi63, playok.com, 2012.

7.Qc2 dc4 8.Bc4 (8.Na3 Bd7=) 8...Nc4 9.Qc4 b6 10.d3 (10.Be5 Bb7+=) 10...Bb7+= 11.Nbd2 Be7 12.0–0 0–0 13.Ne5 Qd5 (13...a6 14.a4 Nd5+=) 14.Nef3 (14.e4!? Qd6 15.Qb3=) 14...Qc4 (14...Rfd8 15.d4–/+) 15.Nc4+= Rfd8 (15...Nd5 16.Rfd1+=) 16.Rfd1 Nd5 17.a3 (17.Kf1 a6 18.a4 f6=) 17...f6 18.d4 (18.a4 Nb4 19.Ne1 Rd7+=) 18...Rac8 19.Rac1 cd4 (19...Kf7 20.Rd2+=) 20.Nd4+= Kf7 21.Nd2 (21.Rd2 h5+=) 21...e5–/+ 22.Nf5 Bf8 23.Nf3 (23.Nc4 Ke6 24.Ng3 Rd7–/+) 23...g6 (23...Bc5 24.Ra1–/+) 24.Ng3 Rc1 25.Rc1 Rc8 26.Rc8 Bc8 27.Ne2 (27.a4 Bb4–/+) 27...Bd7 (27...Bf5 28.Be5 fe5 29.e4 Be4 30.Ng5 Ke8 31.Ne4 Ba3 32.g3–/+) 28.a4 Bb4 (28...Be6 29.Nd2–/+) 29.e4 Nc7 30.Nc3 (better is 30.Bc3 Bd6 31.Nc1–/+) 30...Bc3 31.Bc3+= a6 32.a5 Nb5 33.ab6= Bc6 34.Ba5 Be4 35.Nd2 Bd5 36.Nb3 Nd6 37.Bb4? Bb3 38.Bd6= Bd5 39.f4 e4 40.Kf2 Ke6 41.Bc5 Bb7+= 42.Ke3 Kd5 43.Bd4 f5 44.h3 h5 45.Bc3 Kc5 46.Bd4 Kc4 47.Bf6 a5 48.g3 a4 49.Kd2 a3 50.Ke3 a2 51.Ba1 Kb3 52.Kd2 Bc6 53.h4 Bb7 54.Bd4 Kc4 55.Ke3 Bc8 56.Ba1 ½–½. Chirpii,Alexandru (2115) – Cornea,Claudiu (1730), Centrocoop op, 2000.

7.Qc2 Bd7 8.a4 dc4 9.Bc4 Nc4 10.Qc4 a6 11.Nc3 ab5 12.Nb5 Nd5 13.Ne5 Nb6 14.Qf4 f6 15.Nd7 Kd7 16.0–0 Nd5 17.Qf3 Qb6 18.Rfb1 Qc6 19.Qh5 g6 20.Qf3 Be7 21.d4 c4? (better is 21...Nb6 22.Qd1 c4+=) 22.e4+– Nb6 23.d5 ed5 24.ed5 Qc5 (24...Qc8+–) 25.Ba3 (25.Bf6?! Bf6 26.Qf6 Rae8+–) 25...Qc8 (25...Qd5 26.Rd1 Ba3 27.Rd5 Nd5 28.Qd5 Ke7 29.Qb7 Kf8 30.Qa8 Kg7 31.Qa7 Kh6 32.Ra3+–) 26.Be7 Ke7 (26...f5 27.Qe2 Nd5+–) 27.Re1 Kf7 28.Nd6 ½–½. Madhukiran,G (2010) – Maheshika,D (1845), Parsvnath ch–Commonwealth, New Delhi IN, 2007.

7.Nc3!? Nc4 8.Bc4 dc4 9.Ne5. Gross.

7.d3 Bd6 8.Be2 0–0 9.0–0 Qc7 10.a4 Rd8 11.Bf6 gf6 12.Nc3 dc4 13.dc4 Bh2 14.Nh2 Rd1 15.Rfd1 Nd7 16.Ng4 Kg7 17.Rd2 f5 18.Nh2 Nf6 19.Nf3 b6 20.Rad1 Bb7 21.Rd6 Rg8 22.Ne5 Kh8 23.Bf3 Bf3 24.Nf3 Nd5 25.Rc6 Nc3 26.Rc7 Nd1 27.Rf7 Nc3 28.Ra7 Ne4 29.Ne5 Rb8 30.a5 ba5 31.Ra5 Kg7 32.Ra7 Kh6 33.Rc7 1–0. popovicigelu – tlacololero (1635), kurnik, 2012.

7.cd5 Nfd5 8.Na3 Bd6 9.Nc4 0–0 10.Bd3 Nb4 11.Bb1 Be7 12.Nfe5 Nd7 13.Qh5 h6 14.0–0 Ne5 15.Be5 Bf6 16.Bf6 Qf6 17.Qc5 Nd5 18.d4 Bd7 19.Ne5 Qd8 20.a4 Nf6 21.Ra3 Be8 22.Qc2 Rc8 23.Qd3 g6 24.e4 Qe7 25.Qh3 Kg7 26.Rb3 Qd8 27.Rc3 a6 28.Rc8 Qc8 29.Bd3 Qa8 30.Qe3 ab5 31.ab5 Qa4 32.Rb1 Bd7 33.Nc4 Qa7 34.h3 b6 35.d5 ed5 36.ed5 Nd5 37.Qd4 Nf6 38.Ra1 Qc7 39.Nb6 Be6 40.Na8 Qb7 41.Ra7 Qd5 42.Nc7 Qb3 43.Bc2 Qc4 44.b6 Bd5 45.Qb2 Bc6 46.Bb3 Qe4 47.f3 1–0. Lothal – Belitz, corr DDR–H–249 1988.

7.a4 Nc4=+

8.Bc4 dc4 9.Na3 b6N 10.Nc4+= Bb7 (10...Be7 11.0–0 (11.a5 Bb7 12.0–0 0–0 13.Qe2 Bd5 14.Nfe5 Qc7 15.d3 Rad8 16.e4 Bb7 17.Qf3 Ne8+=) 11...Bb7 12.a5 0–0 13.Qe2 Bd5 14.Nfe5 Qc7 15.d3 Rad8 16.e4 Bb7 17.Qf3 Ne8+=) 11.0–0 (11.a5 Be7 12.0–0 0–0 13.Qe2 Ne4 14.a6 Bd5 15.d3 Bc4 16.dc4 Qc7 17.Qd3 f5+= 0.28/7) 11...Be7 12.d3 (12.Nfe5 a6 (12...Qc7+= 13.a5 0–0 14.d3 Rad8 15.Qc2 Nd5 16.Qe2 f6 17.Qg4 Kh8=) 13.Nc6 Bc6 14.bc6 Rc8 15.Ne5 Bd6 16.f4 Be5 17.fe5 Nd5+=; 12.a5 0–0 13.Nfe5 Qe8 14.Qb3 Bd5 15.d3 a6 16.Qc2 ab5 17.Nb6 Ra6=) 12...0–0 13.e4 (13.Nfe5 a6 14.Qb3 Nd5 15.ba6 Ba6 16.Nc6 Qc7 17.Ne7 Qe7=). Soltis – Stevens, New York, 1964.

8.Bc4 dc4 9.Na3 Be7 10.Nc4 0–0 11.0–0 b6 12.a5 Bd7 13.Qb3 a6 14.Nb6 Bb5 15.Rfc1 (15.Na8 Bf1 16.Rf1 Qa8=) 15...Rb8 16.Be5 Bd6 (16...Rb7 17.d4 Ne4 18.Qc2+=) 17.d4 (17.Bd6 Qd6 18.Qc2 Be2 19.Qc5 Qc5 20.Rc5 Ne4+/–) 17...Be5= 18.de5 Ne4 19.Qc2 Bd3 20.Qa4 f5 21.Ne1 Bb5 22.Qb3 c4 23.Nc4 Qd5 24.Qd3 Qc5 25.Qd4 Qe7 (25...Rfd8 26.Qc5 Nc5 27.Nd2+=) 26.Na3 (26.Nb6!?+=) 26...Rfd8= 27.Qb2 Bf1 28.Qa2 Rd2 29.Rc2 Nc3 30.Rd2 Na2 31.Rda2 (31…Bb5 32.Rd6 Qc7 33.Nb5 Qc4=+) =+. marekt – MickeyMouse, ChessWorld.net, 2002.

8.Bc4 dc4 9.Na3 Be7 10.Nc4 0–0 11.Nfe5 Nd5 12.0–0 f6 13.Nf3 (13.Nd3 a6=) 13...e5=+ 14.Ne1 (14.d3 Be6 15.Qe2 Qd7=+) 14...Be6 15.Qe2 Nb4 (15...a6=+) 16.d3 (better is 16.e4!?=+) 16...Nd3!–+ 17.Qd3 (17.Nd3 Bc4) 17...Qd3 18.Nd3 Bc4 19.Rfd1 Rfd8 (20.Nc5 Bc5 21.Rd8 Rd8–+; 19...Rac8 20.Rd2–+) 0–1. Gussenhoven,G – de Bruin,W, corr NED saldo, 1995.

8.Bc4 dc4 9.Na3 Be7 10.Nc4 a6 11.ba6 Ra6 12.d3 =.

7.a4 Be7

8.Na3 0–0=+ 9.d3 Re8 10.Be2 Nbd7 (10...dc4 11.dc4 Qd1 12.Bd1=) 11.0–0= b6 12.Nb1 (12.a5 a6=) 12...Bb7 13.Nc3 Qc7 14.h3 (14.a5 dc4 15.dc4 Bd6=) 14...Rad8 15.Qc2 dc4 16.dc4 Bd6 17.Rad1 Ne5 18.Nd2 Ng6 19.Nce4 Ne4 20.Ne4 Be5 21.Be5 Qe5 22.Bf3 Nh4 (22...Ba8 23.Rd8 Rd8 24.Nd2=) 23.Nf6 Qf6 24.Bb7 Rd1 (24...Nf5 25.Bc6 Rf8 26.Be4+=) 25.Rd1+= Rd8 26.Rd8 Qd8 27.g3 Ng6 28.Bf3 f5 29.Qc3 ½–½. Sternik,Ryszard – Hofer,R, corr Poland–Austria, 1990.

8.d3 dc4 9.a5 Nbd7 =.

8.cd5 ed5 9.a5 Nc4 10.Bc4 dc4 11.Na3 =.

8.cd5 Nbd5 9.Bc4 0–0 10.0–0 b6 11.d3 Nb4 (11...Bb7 12.Nbd2=) 12.Ne5 (12.Qe2 Bb7=) 12...Bb7 13.Nd2 a6 (13...Bd6 14.Qe2=) 14.Qe2 ab5 (14...Nfd5 15.Qg4 f5 16.Qh5+=) 15.ab5 Ra1 16.Ra1 Ne8 (16...h6 17.f4+=) 17.Ra7 (17.Ne4 Nd6 18.Nd6 Bd6+=) 17...Qb8 (17...Nd6 18.d4+=) 18.Ra3 (18.Ra4 Qc7+=) 18...Qc7= 19.Nf7 (19.Qg4 Bf6 20.d4 Nd6+=) 19...Rf7 (19...Kf7 20.Qh5 Kg8 21.Be6 Kh8 22.Bf5 Rf5 23.Qf5+/–) 20.Be6+= Bd5 21.Bf7 Bf7 22.Nc4 Bf6 (22...Qb7 23.Qg4+=) 23.Bf6+/– Nf6 (23...Bc4!? 24.dc4 Nf6+/–) 24.Ra8 Ne8 (24...Be8 25.Qf3 Kf7 26.Rc8+/–) 25.Qf3+– Qe7 (25...Bg6 26.Qg4 Bf7 27.Qf5+–) 26.Nb6 Nd3 27.Nc8 Qd8 28.h3 Ne5 29.Qf5 Nd7 30.Nd6!! Qe7 31.Nf7 Qf7 32.Qe4 Ndf6 33.Qc6 Qe7 34.b6 Kf8 35.b7 Nd7 36.e4 1–0. pcmvr (2735) – jjones (2685), net–chess.com, 2007.

7.Qb3 Be7

8.a4 0–0 9.a5 Nc4 10.Bc4 dc4 11.Qc4 Qd5 12.Na3 Bd7 13.Rc1 b6 14.ab6 ab6 15.0–0 Qc4 16.Rc4 Ra3! 17.Ba3 Bb5 18.Rc2 Bf1 19.Kf1 Nd5 20.Ke2 (20.e4!? Nf6 21.d3–/+) 20...Ra8–+ 21.Bb2 Ra2 22.d3 Bf6 (22...Bf6 23.d4 g5–+) 0–1. algernon (2510) – kuksifae (2595), net–chess.com, 2015.

8.d3 0–0 9.Nbd2 Nbd7 10.a4 b6 11.a5 ba5 12.Bc3 Bb7 13.Qb2 Bd6 14.Nb3 The pressure on the isolated pawn grows 14...Re8 (14...Rb8 15.Ra5 Qb6 16.Be2=) 15.Na5 Qc7 16.Nb7 Qb7 17.Ra6 Bc7 18.Be2 e5 19.cd5 (19.0–0!?+=) 19...Nd5+= 20.Bd2 Bb6 (better is 20...Nb4!? 21.Bb4 Qb5+=) 21.0–0+= N5f6 22.Ng5 Qc7 23.Qa2 Nf8 24.Ba5 (24.Bf3 Rad8 25.Qc4 Ne6+/–) 24...Ba5+= 25.Qa5 Qa5 26.Ra5 Rab8 (better is 26...h6 27.Nf3 N8d7+=) 27.Ra7+– N8d7 28.Bf3 (28.Rb1 Ra8 29.Rc7 Red8+–) 28...h6 (28...Rb5 29.Bc6 Rbb8 30.Bd7+– (30.Rd7?! Nd7 31.Bd7 Red8+/–)) 29.Ne4+– Ne4 30.Be4 Nf6 31.Bc6 Red8 32.Ra3 Nd5 33.Bd5 (33.Rc1 Nb4 34.Kf1 Nd3+–) 33...Rd5+/– 34.Rb1 (34.Rb3 Rbd8 35.Rc3 Rd3 36.Rc5 e4+/–) 34...Kf8? (better is 34...e4!? 35.de4 Rb5+=) 35.Kf1+– Ke7 36.Ke2 f5 37.Ra7 Kf6 38.Rc7 e4 39.de4 fe4 40.b6 c4?? (better is 40...Re5+–) 41.b7 (41.Rc4?! Rd6 42.b7 Rd7 43.Rb6 Kf7+–) 41...Rdd8 42.Rb6 (42.Rc4?! Rd7 43.Rb6 Kf7+–) 42...Kf5 (42...Ke5 43.Rc5 Rd5+–) 43.h3 (43.h3 Ke5 44.Rc5 Rd5 45.Rc8+–) 1–0. Lahjo,Kyoesti – Saily,Frans, SM/ME–70 corr/Ks70, 1970. (=1.Nf3 d5 2.b4 Nf6 3.Bb2 e6 4.b5 c5 5.e3 Nbd7 6.c4 Nb6 7.Qb3 Be7)

8.d3= 0–0 9.Be2 a6 10.0–0 =.

8.d3= 0–0 9.Be2 a6 10.a4 ab5 (10...dc4 11.dc4 ab5 12.ab5 Ra1 13.Ba1=) 11.ab5 (< 11.Qb5 Bd7 12.Qb3 Ba4–/+) 11...Bd7 (11...Ra1 12.Ba1 Bd6 13.0–0=) 12.0–0 Ne8 (12...Ra1 13.Ba1 Bd6 14.Be5=) 13.Nbd2 Bf6 14.Ra8 Qa8 15.Ra1 Qb8 16.Qa3 Bb2 17.Qb2 Nf6 (17...Nd6 18.Qc3+=) 18.Nb3+/– Qc7 19.Qe5 Rc8 20.Qc7 (20.Ra7 h6+/–) 20...Rc7 21.Ra7 dc4 22.dc4 Ne4 23.Na5 Nd6 24.Ne5 (24.Bd3 f6+=) 24...Be8 (24...f6 25.Nf3+=) 25.Bf3 f6= 26.Nd3 Ndc4 27.Nc4 Nc4= 28.Rb7 Rb7 29.Bb7 Bb5 30.Nc5 ½–½. Brenner,Sabine – Schwarz,Eva, BL, 1995.

8.d3= 0–0 9.Be2 Bd7 10.0–0 a6 11.a4 ab5 12.ab5 Ra1 13.Ba1 Qa8 (13...Bd6 14.Be5 Qe7 15.Na3=) 14.Nc3 (14.Be5 Ng4+=) 14...Bd6 (14...Rd8 15.Rd1=) 15.Bb2 Qb8 16.h3 (16.Ra1 dc4 17.dc4 e5+=) 16...Qc7 17.Ra1 Rc8 (17...Rd8 18.cd5 ed5 19.Ra7=) 18.Na4+= Na8 (18...Ra8 19.Nb6 Ra1 20.Ba1 Qb6 21.Bf6 gf6 22.d4+=) 19.Nd2 (19.Bf6 dc4 20.dc4 gf6+/–) 19...Bh2+= 20.Kh1 Bd6 (20...Be5 21.Nf3 Bb2 22.Nb2=) 21.Bf3 (21.Bf6 gf6 22.cd5 ed5 23.Qd5 Bb5+/–) 21...Be5+= 22.Rc1 (22.Be5 Qe5 23.Qd1 Qd6+=) ½–½. Brenner,Sabine – Moritz,Cornelia, BL, 1995.

8.d3= a5 9.Nbd2 =.

7.Qc2 Bd6

8.Na3 =.

8.a4 0–0 9.d3 (9.Na3 Re8= (9...Qe7 10.a5 Nbd7 11.Be2 Rd8 12.cd5 ed5 13.0–0 b6 14.Nh4 Qe6 15.Nf5 Bb8=) 10.Be2 e5 11.a5 Nbd7 12.cd5 e4 13.Ng5 h6 14.Nc4 Bb8 15.Nh3 Nd5+=; 9.a5 Nc4 (9...Nbd7 10.Bd3 a6 11.b6 Re8 12.Nc3 Nb8 13.Ng5 h6 14.Nh7 Ng4 15.cd5 Ne5=) 10.Bc4 dc4 11.e4 Be7 12.Qc4 a6 13.b6 Bd7 14.Bf6 Bf6 15.Nc3 Bc6+=) 9...Qc7 (9...d4 10.a5 (10.ed4 cd4 11.Nbd2= Bc5 12.a5 Nbd7 13.Nd4 Ng4 14.Be2 Nf2 15.0–0 Nh3+=) 10...Nbd7 11.ed4 Bc7 12.dc5 Ba5 13.Ke2 Nh5 14.d4 Nf4 15.Kd1 a6+=; 9...a5 10.Be2 Qe7 11.0–0 e5 12.cd5 Nfd5 13.Nc3 Nc3 14.Bc3 Nd5 15.Rad1 Bf5=; 9...Nbd7 10.Be2 Re8 11.Nc3 Ne5 12.0–0 d4 13.ed4 Nf3 14.Bf3 cd4 15.Ne4 Ne4=) 10.a5 (10.Bf6 gf6 11.a5 Nd7 12.cd5 ed5= 13.Nc3 d4 14.Nd5 Qd8 15.ed4 cd4+=) 10...Nbd7= 11.Be2 Ne5 (11...e5 12.cd5 Nd5 13.0–0 Nb4 14.Qc4 Nf6 15.Qh4 Bf5=) 12.Nbd2 =. Van de Hey – Hartsough, Colorado, 1987.

8.a4 a6 A) 9.Na3 0–0 (9...Bd7 10.cd5 ed5 11.a5 Nc8 12.Ne5 Be6 13.Be2 ab5 14.Bb5 Kf8 15.f4 Ne7+=) 10.ba6 ba6 11.Rb1 Rb8 12.Bd3 h6 13.0–0 Bd7 14.a5 Na4 15.Be5 Be5+=; B) 9.d4 Nc4 (9...dc4 10.dc5 Bc5 11.a5 Nbd5 12.b6 Bb4 13.Nfd2 c3 14.Nc3 Bd7 15.Bc4 Nc3=) 10.Bc4 dc4 11.Qc4 b6 12.dc5 Bc5 13.0–0 Bb7 14.Nbd2 0–0 15.Rfc1 Qe7=.

8.d4 A) 8...Nc4 9.dc5 (9.Bc4 dc4 10.dc5 Bc5 11.Qc4 Be7 12.0–0 Bd7 13.Rd1 0–0 14.Ba3 Rc8 15.Qb3 Bc5=) 9...Bc5 (9...Nb2 10.cd6 Nc4 11.Bc4 dc4 12.Nbd2 Qd6 13.0–0 Qd3 14.Qc4 Qc4 15.Nc4 Ke7+=) 10.Bc4 dc4 11.Qc4 Be7 12.0–0 Bd7 13.Rd1 0–0 14.Ba3 a6 15.Ne5 ab5=; B) 8...dc4 B1) 9.Bc4 Bd7 (9...cd4 10.Bd4 Nc4 11.Qc4 Qe7 12.Be5 Be5 13.Ne5 Bd7 14.0–0 0–0 15.Qc7 Rfd8=) 10.dc5 Nc4 11.Qc4 Rc8 12.Bd4 Qe7 13.0–0 Bc5 14.a4 Bd6 15.Qe2 e5+=; B2) 9.dc5 Bc5 10.Bc4 Nc4 11.Qc4 Be7 12.0–0 Bd7 13.Rd1 0–0 14.Ba3 Rc8 15.Qb3 Bc5=.

8.cd5 ed5 9.Be2 =+.

7.Qc2 Be7

8.a4 Nc4 9.Bc4 dc4 10.Qc4 =.

8.cd5 ed5 9.Be2 0–0 =.

8.Be2 Nc4=+ 9.Bc4 dc4 10.Qc4 Qd5 (10...a6 11.ba6 b6 12.Qb5 Kf8 13.a7=+) 11.Qe2 (11.d3 Qc4 12.dc4 b6=) 11...0–0=+ 12.Nc3 (12.0–0 Rd8=+) 12...Qh5 (12...Qd6 13.d4=) 13.d4 b6 (13...cd4 14.Nd4 Qg6 15.f4=+) 14.dc5 (14.Ne5 Qe2 15.Ke2 Bb7 16.dc5 Bc5=) 14...Bc5 (14...bc5 15.Rd1=+) 15.0–0 (15.Na4 Bb4 16.Bc3 Bc3 17.Nc3 Bb7=+) 15...Bb7=+ 16.Ne1 (16.Rfd1 a6=+) 16...Qg6 (16...Qe2 17.Ne2 Rfd8 18.Nd4=+) 17.Qc2 (17.Na4 Be7=+) 17...Ne4 18.Ne2 (18.Ne4 Be4 19.Qa4 Rfd8–/+) 18...Rfc8–/+ 19.Nf4 Qh6 20.Qe2 Bd6 (20...a6 21.a4–/+) 21.g3 (21.Ned3 a6–/+) 21...Ng5 (21...a6 22.f3 Nc5 23.Ned3–/+) 22.Qh5?? (better is 22.h4 Ne4 23.Ned3–/+) 22…Qh5–+ (23.f3 Bf3–+) 0–1. Nemeth,Laszlo – Suto,Gabor (2310), Fuzesabony op, 2003.

8.a4 a5

9.d3 0–0

10.Nbd2 Bd6 11.Be2 =.

10.Nbd2 Nfd7 11.Nb3 dc4 12.dc4+= Bf6 13.Bc3 (13.Bd3 Bb2 14.Qb2 e5+=) 13...Qc7 (13...Bc3 14.Qc3 e5 15.Bd3= (< 15.Ne5 Qf6 16.f4 Re8=+)) 14.Bd3 g6 (14...Bc3 15.Qc3 e5 16.0–0+=) 15.Bf6 (15.0–0 Ne5+/–) 15...Nf6+= 16.Qc3 Nbd7 17.Nbd2 (17.Rd1 b6+=) 17...Rd8 18.h3 h6 19.g4 b6 20.g5 hg5 21.Ng5 (21.Rg1 Bb7+=) 21...Bb7 (21...Qe5 22.Nge4 Qc3 23.Nc3=) 22.Rg1 Qe5 23.Qe5 Ne5 24.Be2 Rd6 25.0–0–0 Rad8 26.Ndf3 Nf3 27.Bf3 (27.Rd6 Rd6 28.Bf3 Bf3 29.Nf3 Rd3=+) ½–½. Hasse,Peter – Vlach,Michael, Mecklenburg VP LL1, 1998.

10.Nbd2 Nfd7 11.Nb3 Bf6 12.Be2 =.

10.Nbd2 Nfd7 11.Be2 Bf6 =.

10.Nbd2 Re8 11.Be2 Bd6 12.0–0 e5 13.e4 (13.cd5 Nbd5 14.Ne4 Nb4=) 13...d4 14.Ne1 (14.Rae1 Qc7=) 14...Ng4 15.h3 Nh6 16.Bc1 f5 (16...Qf6 17.Nef3=+) 17.ef5= Nf5 (17...Rf8 18.Ne4 Nf5 19.Nf3=) 18.Ne4 Be7 (18...Rf8 19.Nf3=) 19.Bg4 Nh4 20.Qe2 Nd7 (20...Rf8 21.Nc2+=) 21.Be6 Kh8 22.Qh5 (better is 22.g3 Ng6 23.Bf7+=) 22...Ng6? (22...Nf6 A) 23.Qe5? Be6 24.Nc5 Bd5 25.Qd4 Bg2 26.Qd8 Rad8–+ (26...Bd8? 27.Ng2 Nf3 28.Kh1+–; 26...Red8?! 27.Ng2 Nf3 28.Kh1 Bc5 29.Nf4–+); B) 23.Nf6 Bf6 24.Bd5+=) 23.Bf5 Nf6?? 24.Nf6+– Bf5 25.Qh7# (25.Qf5?! Bf6 26.Nf3 Qc7+=) 1–0. Fredek (2090) – Arioh, Freundschaftspartie, 5m + 0s, 2005.

10.Be2 dc4 11.dc4 Bd6 +=.

7.d3 dc4

8.Na3 cd3+= 9.Bd3 Be7 10.0–0 0–0 11.Qe2 Nbd5 12.Rad1 Bd7 13.Ne5 Qc7 14.g4 (14.Nd7 Nd7 15.Nc4 Rad8+=) 14...Bd6 15.f4 h6 (15...Rad8 16.Nec4+=) 16.Rf3 (16.Nec4 Ne8=) 16...a6 17.g5 hg5 18.Nd7 Qd7 19.fg5 Ng4 20.Bh7? (better is 20.Rh3 f5 21.gf6 Ngf6 22.ba6 ba6 23.Qc2+=) 20...Kh7–+ 21.Rh3 Nh6! 22.Nc4 (22.gh6 gh6 Decoy) 22...ab5 23.Qc2 Kg8?? (23...f5 24.gf6 g6 25.Nd6 Qd6–/+ (25...Nf6? 26.Bf6 Rf6 27.Ne4+–; 25...Ra2?? 26.Ne4 Kg8 27.Rh6+–)) 24.gh6+– f5 (better is 24...Rfc8 25.Nd6 Qd6+–) 25.hg7 Rfd8 26.Qe2?? (better is 26.Nd6 Qd6 27.e4+–) 26...Qc7?? (26...bc4 27.Rh8 Kf7 28.Qh5 Ke7 29.Qh4 Kf7 30.Rd5 c3 31.Bc3 e5 32.Be5 Be5 33.Rd7 Rd7 34.Qh5 Ke6 35.Re8 Re8 36.Qe8 Kd6 37.Qg6 Kc7+–) 27.Rh8 (better is 27.Nd6 Qd6 28.Rh8 Kf7 29.Qh5 Ke7 30.Qh7+–) 27...Kf7 28.Qh5 (worse is 28.Nd6 Ke7 29.Nf5 ef5 30.Rd5 Rd5+–) 28...Ke7 29.Qg5 (29.Qh7 Bh2 30.Kh1 Rg8 31.Rg8 Rg8 32.Qg8 bc4 33.Qf8 Kd7+–) 29...Kd7 30.Nd6 (30.Nd6 Qd6 31.Rd8 Rd8 32.Qd8 Kd8 33.g8Q Kc7 34.Qe8+–) 1–0. Geisensetter,Franz – Majstr,Jiri, ICCF World Cup8–9 prel–051, 1990. (=1.Nf3 d5 2.b4 e6 3.b5 Nd7 4.Bb2 Ngf6 5.e3 c5 6.c4 Nb6)

8.dc4 Qd1 9.Kd1 Be7 =.

7.cd5 ed5

8.a4 c4 9.a5 Nbd7 10.d3 Bb4 11.Bc3 Bc3 12.Nc3 cd3 13.Bd3 Nc5 14.Nd4 Nfe4 15.Qc2 (15.Be4 de4 16.0–0 Qh4+=) 15...f5 (15...Nd3!? 16.Qd3 Nc3 17.Qc3 Qg5+=) 16.0–0+/– 0–0 17.Ne4 fe4 (17...Nd3 18.Nd2 (18.Qd3?! fe4 19.Qd2 Bg4+=) 18...Ne5 19.Rfe1+/–) 18.Qc5 ed3 19.Rfd1 b6 (better is 19...Bf5!?+/–) 20.ab6+– ab6 21.Qf8! Qf8 (21...Qf8 22.Ra8; 21...Kf8 22.Ra8) 22.Ra8 Qc5? (22...h6 23.Nc6 Kh7 24.Kf1+– (< 24.Rd3 Qc5 25.Rd1 Bb7+/–)) 23.Nc6 Qc2 (23...h5 24.Rc8 Kh7+–) 24.Rc8 (24...Kf7 25.Nd8 Ke8 26.Nb7 Qc8 27.Nd6 Kd7 28.Nc8 Kc8 29.Rd3+–) 1–0. woschkat (2155) – paulze (2100), net–chess.com, 2001.

8.Be2 Bd6 =+.

8.Be2 Be7 9.0–0 0–0 10.a4 a6 11.a5 Nbd7 12.b6 Ne4 13.Nc3 Bf6 14.Qc2 Ne5 (better is 14...Nc3!? 15.Bc3 Re8+=) 15.Ne4+/– Nf3 16.Bf3 Bb2 17.Qb2 de4 18.Be4 Qd6 19.Rac1 Be6? (better is 19...Re8 20.Qc2 f5+–) 20.Bb7 Rab8 21.Ba6 Rfd8 22.Be2 Qd2 23.Qd2 Rd2 24.Bf3 Ra2 25.Rc5 g6 26.h4 Kg7 27.Bd5 Bd5 28.Rd5 Kf6 29.g3 Ke6 30.Rfd1 Rb7 31.Rd6 (better is 31.Kg2+–) 31...Ke7 32.R6d5 Ke6 33.Rb5 f5 34.Rc1 Kd6 35.Kg2 Ke6 36.Rc7 (better is 36.Kf3 Ra3+–) 36...Rc7 37.bc7 Kd7 38.Rc5 Kc8 39.h5! Rb2 (39...gh5 40.Rf5 Deflection) 40.hg6 hg6 41.Kf3 1–0. ludice (1735) – pohodka, kurnik, 2011.

7.cd5 Nbd5

8.a3 b6 9.Bc4 Bd6 =.

8.a3 b6 9.g3 Bb7=+ 10.Bg2 Be7 11.0–0 0–0 12.Nc3 Qe8 13.Qb3 Nc3 14.Bc3 Bd5 15.Qb2 Nh5 (15...a6 16.a4=+) 16.Ne5 f5 17.Rac1 Nf6 18.Nc6 Bd6 19.a4 Qd7 20.a5 Ne4 21.Be5 Qc7 (21...a6!? 22.Bd6 A) < 22...Nd6 23.Bd5 (< 23.ab6 Bg2 24.Kg2 c4=+) 23...ed5 24.ab6+=; B) 22...Qd6=+) 22.Bd6 Qd6 23.d3 Nf6 24.a6 (24.Qe5 Qe5 25.Ne5 ba5 26.Bd5 Nd5 27.Rc5 a6+=) 24...Rf7 (24...Bg2!? 25.Kg2 Qd3=+) 25.Rfd1 Re8 (25...Rc8 26.Ne5 Rfc7 27.Nc4+=) 26.Ne5 (26.e4!? Bc6 27.e5+/– (< 27.bc6 Qc6 28.ef5 Qa4=)) 26...Rc7+= 27.e4 Ba8 28.Nc6 e5 29.ef5 Nd5 30.Re1 (30.Qa2 Bc6 31.bc6 Rd8+/–) 30...Bc6= ½–½. Margraf,A – Springer,U, corr SOK–89–50, 1989.

8.Na3 Bd6 9.Nc4 0–0 10.Bd3 Nb4 11.Bb1 Be7 12.Nfe5 Nd7 13.Qh5 h6 14.0–0 Ne5 15.Be5 Bf6?? 16.Bf6+– Qf6 17.Qc5 Nd5 18.d4 Bd7 19.Ne5 Qd8 20.a4+– Nf6 21.Ra3 Be8 22.Qc2 Rc8 23.Qd3 g6 24.e4 Qe7 25.Qh3 Kg7 26.Rb3 Qd8 27.Rc3 a6 28.Rc8 Qc8 29.Bd3 Qa8 30.Qe3 ab5 31.ab5 Qa4 32.Rb1 Bd7 33.Nc4 Qa7 34.h3 b6 35.d5 ed5 36.ed5 Nd5 37.Qd4 Nf6 38.Ra1 Qc7 39.Nb6 Be6 40.Na8 Qb7 41.Ra7 Qd5 42.Nc7 Qb3 43.Bc2 Qc4 44.b6 Bd5 45.Qb2 Bc6? 46.Bb3 Qe4 47.f3 (47...Qe3 48.Kh1+–) 1–0. Lothal,G – Belitz,V, corr DDR, 1988.

8.Bc4 Be7 9.a4 0–0 10.0–0 Nb6 11.Be2 Nbd7 12.Na3 (12.a5 b6+=) 12...b6= 13.Nc4 Bb7 14.Nfe5 Ne5 15.Ne5 Nd7 16.Bf3 Bf3 17.Qf3 Ne5 18.Be5 Bd6 19.Bc3 f6 (19...Qh4 20.g3 Qc4 21.e4=) 20.Qg4 e5 (20...Qd7 21.a5=) 21.Qe6 Rf7 22.f4 (22.a5 Rb8+=) 22...Qd7 23.Qd5 Re8 24.fe5 Be5 25.Qd7 Rd7 26.Be5 fe5 27.Rf2 Red8 28.Rd1 (28.Ra2 Rf7+=) 28...Rd3 29.h3 (29.Rf5 Re3! 30.de3 Rd1 31.Kf2 Rd2 32.Kg3 Ra2 33.Re5 Ra4–/+) 29...Ra3 (29...Re3 30.Kf1–/+) 30.Rf5 Re3! 31.Kf2 (31.de3 Rd1 Pinning (31...Rd1 Deflection)) 31...Ra3 32.Re5 Ra4 33.Re7 a6 34.ba6 Ra6 35.Rb7 Ra2 36.Rb6 Rad2 37.Rd2 Rd2 38.Kf3 c4 39.Rc6 Rc2 40.g4 h6 41.Ke3 Rc3 42.Kd4 (42.Ke4 h5–/+) 42...Rh3 43.Rc4 Rh4 (43...Kh7 44.Ke5–+) 44.Ke5? (better is 44.Ke3!?–/+) 44...Kh7–+ 45.Rf4 h5 (better is 45...Kg6–+) 46.g5?? (better is 46.gh5 Rh5 47.Ke4–/+) 46...Rf4–+ 47.Kf4 Kg6 (47...Kg6 48.Kf3 Kg5–+) 0–1. chybol3 – karasimowicz, playok.com, 2013.

8.Be2 Bd6 9.0–0 =.

8.Be2 Bd7 9.0–0 Bd6 10.a4 (10.Nc3 Rc8=) 10...0–0 11.d3 (11.d4 Rc8=) 11...Ng4 12.Qd2 (12.Qb3 Qc7 13.Kh1 a6=) 12...Qc7 13.h3 Ngf6 (13...Nh2 14.Rc1=) 14.Na3 e5 15.Nc4 Rfe8 16.Rac1 a6 (16...b6 17.Ng5=) 17.ba6 (17.e4 Nb6 18.Nd6 Qd6+=) 17...ba6 18.Nd6 Qd6 19.Be5 (19.Qa5 Rac8=) 19...Re5= 20.Ne5 Qe5 21.Rc5 Qd6 22.Qa5 Nb6 23.Rb1 Na4 (23...Rb8 24.Rcc1+=) 24.Rc4+/– Rb8 (24...Qa3 25.Bf1+/–) 25.Rb8 Qb8 26.Ra4 Ba4 27.Qa4 Qb1 (27...Qb5 28.Qc2 a5 29.Qc8 Qe8 30.Qc7+–) 28.Bf1 Qb6 29.d4 a5 30.e4 Qb2?? (better is 30...g5+–) 31.e5 (31.Qa5?! Qb8 32.Bd3 h6+–) 31...Nd5 (31...Qb4 32.Qb4 ab4 33.ef6 gf6+–) 32.Qe8 1–0. Roldan,Antonio Jose – Pleschke,Helmut, corr ICCF, 1998.

8.Be2 Bd7 9.0–0 Be7 10.d4 =.

8.Be2 Bd7 9.Qb3 =.

8.Be2 Be7 9.0–0 0–0 10.Nc3 Nc3 11.Bc3 Nd5 12.Bb2 Bf6 (12...a6 13.d4=) 13.Ne5 (13.Bf6 Qf6 14.Qc2 b6+=) 13...b6 (13...a6 14.d4=) 14.f4 (14.Nc6 Qc7 15.Bf6 Nf6=) 14...Bb7 15.Bf3 (15.e4 Nc7 16.Qc2 a6=) 15...Rb8 (15...a6 16.a4=+) 16.Qe2 Ra8 17.a4 a6 18.d4 (18.Be4 Ra7=) 18...ab5 (18...cd4 19.Bd5 d3 20.Qd3 Qd5 21.Qd5 Bd5 22.Rfc1=) 19.ab5= (< 19.Qb5 Ba6 20.Qb3 Bf1 21.Rf1 Be5 22.fe5 c4 23.Qc4 Ne3–+) 19...Qe7 (19...Ra1 20.Ra1 cd4 21.Bd5 Qd5 22.Bd4=) 20.Ng4 Kh8 (20...Bh4!?=) 21.Nf6 Qe8?? (21...Nf6 22.Bb7 Qb7 23.dc5 Ra1 24.Ra1 bc5 25.Bf6 gf6 26.Qc4+/–) 22.Nd7 e5?? 23.Qf2 Rb8?? 24.Nb6 Ba6 25.Na8 Qd8 26.Rfb1 Qd7 27.Ra3 Qc6 28.de5 Bc8 29.Nc7 Nf6 30.ef6 Bh3 31.Ne8! ½–½. Jensen,Henrik – Lindholt,Malik, Politiken Cup Copenhagen, 1996.

8.Be2 Be7 9.0–0 0–0 10.d4 (10.Nc3 Qc7=) 10...b6 (10...Bd7 11.Ne5=) 11.Nbd2 (11.Nc3 Nc3 12.Bc3 Bb7=) 11...Bb7 (11...a6 12.a4=) 12.dc5+= Bc5 13.Nb3 (13.Qa4 Bb4 14.Rad1 Qe7=) 13...Be7 (13...Bb4 14.Rc1+=) 14.Rc1 (14.Ne5 Bd6=) 14...Rc8 (14...a6 15.a4=) 15.Qd4 (15.Nbd4 Rc1 16.Qc1 Qa8+=) 15...Qd6 (15...Nb4 16.Ne5=) 16.Qa4+= Qb8 17.Be5 (17.Nbd4 Ne4 18.Nc6 Bc6 19.bc6+= (19.Qe4? Nc3 20.Qc2 Bf3 21.Bf3 Na2–+)) 17...Bd6= 18.Bd6 (18.Qd4 Be5 19.Ne5 Rfd8=) 18...Qd6 19.Rfd1 Qe7 20.Qd4 (20.Qa7?? Ra8 21.Qa8 Ra8–+ (worse is 21...Ba8 22.Nfd4–+)) 20...Rfd8 21.Qe5 Ng4 (21...h6 22.h3=) 22.Qb2 Ngf6 (22...h6 23.h3 Ngf6 24.Ne5+=) 23.Ne5+= Ne4 (23...Rc1 24.Rc1 (worse is 24.Qc1 Ne4+=) 24...Qd6 25.Qd4+=) 24.Nc6 Bc6 25.bc6 Nb4 (25...e5!?+=) 26.Rd8 Qd8? (26...Rd8 27.Nd4 Nd5 28.Bf3+/–) 27.Nd4 Nd5 28.Ba6 Rc7 29.Bb5 Nc5+= 30.Nb3 Ne4 31.Nd4 Qf6 32.Qc2 Qg5?? 33.Qe4+– Re7 34.c7! Rc7 35.Rc7 Nc7 36.Qb7 Qd8 37.Bf1 (37.Bf1 g6 38.Qa7+–) 1–0. Carstensen,Jan Christian (1655) – Prosch,Sebastian (1865), Schleswig Holstein–ch U18, 2001.

7.Ne5 Bd6

8.Na3 0–0 9.Bd3 +=.

8.Na3 Be7 9.Qb3 Ne4 10.d3 dc4 11.Nac4 Nc4 12.Nc4 (12.Qc4?? Qa5 13.Bc3 Nc3–+) 12...Nf6 13.Be2 0–0 14.Qc3 Qd5 15.Bf3 Qg5 16.h4 Qg6 (16...Qh6!?=) 17.Ne5+/– Qf5? (better is 17...Qh6 18.Ba3 Nd5 19.Bd5 ed5 20.Bc5 Qf6+/–) 18.e4+– Qf4 (18...Nd5 19.Qc1 Qf6 20.ed5 ed5 21.Bd5+–) 19.Bc1 Nd5 20.ed5 (better is 20.Qb2 Qe5 21.Qe5+–) 20...Qf6 (20...Qa4 21.de6 fe6 22.Qc4 Qa5 23.Bd2+–) 21.Bb2 (better is 21.Bg5 ed5 22.Bf6+–) 21...ed5 22.Bd5 Bf5 (22...a6 23.g4 Bd6 24.Nc4 Qc3 25.Bc3+–) 23.Be4 (23.Bb7!? Rab8 24.Bc6 Rbd8+–) 23...Be4 24.de4 a5 (24...Rfe8 25.Nc4+–) 25.Nd7 Qh6 (25...Qc3 26.Bc3 Rfe8 27.0–0–0+–) 26.Nf8 c4 27.Nd7 Bb4+/– 28.Qb4 ab4= 29.Rd1 c3 30.Bc1 Qe6 31.Nc5 Qa2 32.Nb7 c2 33.Rd2 b3+= 34.0–0 Qa1 35.Nd6?? b2–+ 36.Rc2 b1Q 37.Rc7 Qf6 38.Ba3 Qb3 39.Rfc1 Qd8 40.Nf7 Qh4 41.Ne5 Qa3 42.Rc8 Rc8 43.Rc8 Qf8! 44.Rf8 Kf8 45.Nd7 Ke7 46.Nb6 Qe4 47.g3 g5 48.Nc8 Kd8 49.Na7 Qb7 50.Nc6 Kc7 51.Nd4 h6 52.Nf5 h5 53.Nd4 Qd5 54.Nc6 Qb5 55.Ne7 Qb1 56.Kh2 Kd7 57.Nd5 Qf1 58.Nf6 Ke6 59.Ne4 g4 60.Ng5 Kf5 61.Nf3 Qf2 62.Kh1 0–1. Henkel,Scott – Culver,Daniel, Kalamazoo op12, 1999.

8.a4 a5 9.d3 0–0 10.Be2 Be5 11.Be5 dc4 12.dc4 Qd1 13.Kd1 Ne4 14.Ke1 Nd7 15.Bc7 b6 16.f3 Nef6 17.Kf2 Bb7 18.Rd1 Rac8 19.Bd6 Rfd8 (19...Rfe8 20.Ra2+=) 20.Nc3 (20.Be7!?+–) 20...Re8+/– 21.Bg3 Nf8 22.Rd6 N8d7 23.Rad1 Re7 24.Bh4 h6 (24...Rc7+–) 25.Bf6 Nf6 26.Rb6 Rcc7 27.Rbd6 Rcd7 28.Rd7 Rd7 29.Rd7 Nd7 30.g4 f5 31.gf5 ef5 32.Kg3 g5 (Better is 32...Kf7+–) 33.Bd3 Ne5 34.Bf5 Bf3 35.Be6 Kg7 36.e4 Kf6 37.Bd5 1–0. Grund,Karl – Dzuris, corr, 1972.

8.a4 Be5 9.Be5 Nc4 10.Bc4 dc4 11.Qe2=.

8.d3 0–0 =+.

8.d4 0–0 9.Nd2 Bd7 (9...cd4 10.Bd4 Qc7 11.Nef3 Nc4 12.Bc4 dc4 13.Bf6 gf6 14.Qa4=) 10.Nd7 (10.Rc1 Rc8=) 10...Nfd7 (10...Nbd7 11.dc5 Nc5 12.Qf3=+) 11.Bd3 (11.cd5 Nd5 12.e4 N5b6=) 11...Rc8 (11...dc4 12.Nc4 Nc4 13.Bc4=+) 12.Rc1 (12.cd5 Nd5 13.Nc4 Bc7=) 12...dc4 13.Nc4 Nc4 14.Bc4 Nb6 15.Bb3 (15.Bd3 Qg5 16.Be4 cd4 17.Qd4 Rc1 18.Bc1–/+) 15...c4–/+ 16.Bc2 Bb4 17.Kf1 Qd7 18.a4 a6 (18...c3 19.Ba1=+) 19.ba6=+ ba6 20.Ra1 (20.Kg1 Nd5=+) 20...a5 (20...f5 21.Kg1–/+) 21.Qh5 g6 22.Qh6 f5 23.h4 Qe7 24.Ke2 Nd5 25.Rag1 c3 26.Bc1=+ Bd6 27.g4 Qg7 28.Qg7=+ Kg7 29.g5 e5 30.Bb3 Nb4 31.de5 Be5 32.h5 c2 33.f4 Rc3 34.Be6 Bd4?? 35.ed4 Re8=+ 36.d5 Nd5 37.Bb2 Re6 38.Kd2 Ree3 39.h6 Kf7+= 40.Bc3 Rc3 41.Rc1 Rc4=+ 42.Rc2 Rd4 43.Ke2 Nf4 44.Ke3 Re4 45.Kf3 Ne6–/+ 46.Rg2 Ra4 47.Re1 Rb4 48.Ra1 a4 49.Ra3 Rf4 50.Ke3 Re4 51.Kf3 Ke7 52.Rg1 Kd6 53.Rd3 Ke5 54.Rd7 Nd4 55.Kf2 a3 ½–½. Guenther – Grey, LP–91–044A, 1995.

8.d4 cd4 9.Bd4 Be5 10.Be5 Nc4 11.Bc4 dc4 12.Nc3 =+.

8.f4 0–0 9.Qc2 =+.

8.f4 dc4

9.a4 Nbd5 10.Bc4= 0–0 11.g4 (11.0–0!?=) 11...Be5 12.fe5 Ne4 (12...Nd7 13.Qe2=+) 13.h4 (13.0–0 Qh4=) 13...Nb6 (13...Ne3 14.de3 Qd1 15.Kd1 Nf2 16.Ke2 Nh1 17.Nc3 Ng3 18.Kf3+=) 14.Qc2= f5 15.ef6 (15.d3 Ng3 (< 15...Nc4 16.Qc4 Qa5 17.Nc3+=) 16.Rg1 Nc4 17.dc4 fg4–+ (17...Qh4 18.Qf2+/–)) 15...Nf6 16.g5 Nfd5 (16...Qd6 17.Rf1 Qg3 18.Kd1 Qh4 (18...Nc4?! 19.Qc4 Ng4 20.Rf8 Kf8 21.Qc5 Kf7 22.Kc2+=) 19.Be6 Be6 20.gf6 Nd5–+) 17.Bd3+= Qc7 (17...Qd6 18.Bh7 Kh8 19.Be4+/–) 18.Bh7+/– Kh8 19.Qe4 Nc4= 20.Qc4 Qg3 21.Kd1 Qf3 22.Kc2 Qh1 23.Qc5 Rf7 24.Nc3 Qh2 25.g6 Qc7 26.Qd4 Rf8= 27.Ba3 Rf6 28.h5 Nc3 29.dc3 e5=+ 30.Qc5 Rf2 31.Kb3= Be6 32.c4 Qc5 33.Bc5 Rc8 34.Rd1 b6 35.Bd6?? Rc4–+ 36.Rd3 Rcc2 (37.Kb4 Rb2 38.Ka3 Ra2 39.Kb4 Rfb2 40.Kc3 Rb3; 36...Rc1 37.Rd5 Bd5 38.Kb4 Rb1 39.Kc3 Rb3) 0–1. Schoppmeyer,Herbert – Rosemann,HJ, corr BdF, 1968.

9.a4 Nbd5 10.Bc4= Rb8 =.

9.a4 Ne4 10.a5 Nd5 11.Bc4? Be5 12.Be5 Qh4 13.g3 Ng3 14.hg3 Qh1 15.Bf1 Nb4 –+.

9.a4 Ne4 10.a5 Nd5 11.Nc4?! Bf4 12.Qf3 Ng5 =.

9.a4 Ne4 10.a5 Nd5 11.Qf3 =.

9.Nc4 Be7 =.

6.Nf3 dc4

7.Na3 a6 8.ba6 b5 (better is 8...b6!?=) 9.Nb5+/– Ba6 10.Bc4 Nb6 11.Be2 Nfd5 12.0–0 Qd7 13.Nc3 c4 14.a4 Nb4 15.a5 N6d5 16.Ne5 Qc7 17.Qa4 Kd8 18.Nd5 ed5 19.Bd4 Rb8 20.f4 Bb5 21.Qd1 (better is 21.Bb6!? Qb6 22.Nf7 Kd7 23.Bg4 Ke8 24.ab6 Ba4 25.Nh8 Bc6+–) 21...Ke8 22.Qc1 f6 23.Ng4 h5 24.Nf2 Bd6 25.Re1 Kf7 26.Bf3 g5 (26...Ba6 27.Bb6 Qd7 28.Qc3+–) 27.fg5 (better is 27.Qc3!? gf4 28.ef4 Rh6+–) 27...Bh2 28.Kh1 Bg3 29.g6 (29.Rf1 Bf2 30.Rf2 Qg3+–) 29...Kg6 (better is 29...Ke8!? 30.Bb6 Qe5+=) 30.Qb1+/– Nd3 31.Nd3 cd3 32.Rf1 Bc4 33.Qc1 Qe7 34.Bf6+– Kf6 35.Bd5 Kg6?? 36.Qc4+– Rb4 37.Qd3 Kh6 38.Qa6 Bd6 39.Rf3 Rh4?? 40.Kg1+– Qe5 41.Raf1 Qh2 42.Kf2 Rg4 43.Rf6 Rg6 44.Rg6 Kg6 45.Ke2 Rb8 46.Qd3 (46.Qd3 Kg7 47.Rf7 Kh6 48.Qf5 Qg2 49.Bg2 h4 50.Rh7#) 1–0. Thesing,Michael (1975) – Engelkamp,Stephan (1830), Verbandsliga Muensterland, 2005.

7.Na3 b6 8.Nc4 Bb7 9.Bd3 Be7 10.0–0 Bf3 (10...a6!? 11.ba6 Ba6=) 11.Qf3+= (worse is 11.gf3 a6 12.a4 Nd5+=) 11...0–0 12.e4 Qc7 13.e5 Nd5 14.Qe4 g6 15.Ne3 Ne3 16.fe3 Rfe8 17.Rf3 Rac8 (17...Rf8!? 18.Raf1+/–) 18.Qf4+– Rf8 (18...Kh8 19.Be4+–) 19.Qh6 Ne5?? (19...f5 20.ef6! Rf6 21.Bf6 Nf6 22.Bg6 hg6 23.Qg6 Kf8+–) 20.Rh3 Bh4 21.Qh4 f5 (21...Rfd8 22.Qh7 Kf8 23.Rf1 Nd3 24.Qg6 Nb2 25.Rh8 Ke7 26.Rf7 Kd6 27.Qg3 Kd5 28.e4 Kc4 29.Qb3 Kd4 30.Qc3 Ke4 31.Qf3 Kd4 32.Rh4 Qf4 33.Qf4 Kd3 34.Qe4 Kd2 35.Rf2 Kc3 36.Rc2 mate) 22.Be5 Qd7 23.Bc4 Rce8 24.Rf1 Re7 25.Qh6 Rff7 (25...Qb7 26.e4 a5 27.ef5 Rff7 28.fg6 Rf1 29.Bf1 c4 30.gh7 Rh7 31.Rg3 Qg7 32.Rg7 Kf8 33.Qf6 Ke8 34.Qe7 mate) 26.Qg6 Rg7 27.Rh7 black timed out... (27.Rh7 Rg6 28.Rh8 Kf7 29.Rf5 Rf6 30.Rf6 Kg7 31.Rf4 Kg6 32.Rg4 Kf5 33.Rh5 Kg4 34.Be2 mate) 1–0. pcmvr (2865) – vkroll (2315), net–chess.com, 2012.

7.Bc4= Qc7 8.0–0 (8.d3 Bd6=) 8...Bd6 9.Qb3 (9.Qc2 e5=) 9...0–0 10.h3 (10.d3 Ng4 11.h3 Nge5 12.Ne5 Ne5=) 10...b6 (10...e5 11.Ng5 Nb6 12.f4 Nc4 13.Qc4=+) 11.d4 (11.d3 a6=) 11...Bb7 (11...a6 12.Rd1=) 12.Nbd2 h6 (12...Rac8 13.Rac1=) 13.Be2 (13.Rac1 a6=) 13...Ne4 (13...Rfc8 14.Nc4=) 14.Ne4 (14.Rfd1 Rac8=) 14...Be4 15.Rfc1 (15.Qc3 Nf6=) 15...Rac8 16.a4 (16.Qa4 Bb7=) 16...Nf6 (16...Rfd8 17.a5=) 17.dc5+= Bc5 18.Bd4 (18.Bf6 gf6 19.Nd2 Bd5+=) 18...Bd5 (18...Qe7 19.Qb2=) 19.Qd1 Qb7 (19...Rfd8 20.Qe1=) 20.Bc5 (20.Bf6 gf6 21.Nh4 Rfd8=) 20...Rc5 (20...bc5 21.Qe1=) 21.Rc5 bc5 22.Rc1 Rc8 23.Bf1 Qc7 24.Bc4 Bf3 25.Qf3+= Nd7 26.Qe4 Nf6 27.Qc2 Qa5 28.Be2 Nd5= 29.Bf3 Nb6 30.Bc6 c4= 31.Qc3 Qa4 32.Qd4 Qa3=+ 33.Ra1 Qe7 34.Ra6 Rc7 35.f4 Qf6 36.Qd6= Qe7 37.Qd4=+ Qf6 38.Qd6= Qe7 39.Qe5 Nd5–/+ 40.Bd5 ed5 41.Qe7 Re7 42.Kf2 Rb7–+ 43.Ra5 c3 44.Ke2 c2 45.Kd2= Rc7 46.Kc1 Kf8 47.Ra6 Ke7 48.b6 ab6–+ 49.Rb6 Rc3 50.Rb2 Re3 51.Rc2 Kd6 52.Ra2 Rg3 53.Kd1 Ke6 54.Ke1 h5 55.Kf2–/+ h4 56.Re2 Kd6 57.Ke1 Kc5 58.Re5 f6 59.Rh5 Rg2 60.Rh4 d4 61.Rh8 Kc4 62.Kf1 Rh2 63.Rh7? d3 64.Rg7 Rh1 65.Kf2 d2 66.Rc7 Kb5 0–1. Danek,Vaclav (1835) – Ceplecha,Tomas (1910), Klatovy op–B, 1997.

7.Bc4 Be7 8.0–0 0–0 9.a4 b6 10.d3 Bb7 11.Nbd2 Qc7 12.Qb3 Nd5 13.Ne4 h6 14.Rfc1 Rac8 15.Ng3 Bf6 16.Nh5 Bb2 17.Qb2 N5f6 18.Nf6 Nf6 19.Ne5 Nd7 20.Nd7 Qd7 21.a5 Ra8 22.e4 Rfd8 23.Ra3 Qd4 24.Qd4 Rd4 25.f3 Rdd8 26.Rca1 Kf8 27.R1a2 Ke8 28.Kf2 Ke7 29.Ke3 Kd7 30.Kf4 Ke7 31.h4 Kf6 32.Ke3 Ke7 33.g3 Kf6 34.Kf4 g6 35.Ke3 Ke7 36.Kf4 Kf6 37.Ra4 Rdc8?? (37...Ke7 38.g4+=) 38.Ke3?? (better is 38.a6 g5 39.Kg4 h5 40.Kh3 Be4 41.de4+–) 38...Rd8+= 39.Rd2 Rd4 40.Rd1 Rad8 41.Rda1 R8d7 ½–½. Maksic,Dragan (2195) – Grahovac,Goran (1955), Kragujevac SER, 2nd Gligoric Cup, 2014.

7.Bc4 b6

8.0–0 Bd6 A) 9.Nc3 Bb7 (9...0–0 10.d4 Bb7 11.d5 ed5 12.Nd5 h6 13.Qb3 Nd5 14.Bd5 Bd5; 9...h6 10.d4 0–0 11.e4 cd4 12.Qd4 Qc7 13.Na4 Rd8 14.g3 Ne5; 9...Qc7 10.d4 cd4 11.Qd4 Ne5 12.Be2 Bb7 13.Qh4 Nf3 14.Bf3 Bf3; 9...Qe7 10.Rc1 0–0 11.Qe2 Bb7 12.h3 h6 13.Rfd1 Rac8 14.Rc2 Ne5) 10.d4 0–0 11.d5 ed5 12.Nd5 h6 13.Nf4 Qc7 14.Nd5 Qd8; B) 9.d4 0–0 (9...Bb7 10.Nc3 0–0 11.d5 ed5 12.Nd5 h6 13.Qd3 Bd5 14.Bd5 Nd5; 9...Qc7 10.h3 Bb7 11.Nbd2 0–0 12.Qc2 Rac8 13.Rac1 cd4 14.Bd4 Ba3; 9...h6 10.d5 e5 11.Nc3 0–0 12.Qd3 Qe7 13.e4 Nh5 14.Ne2 Nf4) 10.Nc3 Bb7 11.d5 ed5 12.Nd5 h6 13.Qd3 Bd5 14.Bd5 Nd5; C) 9.h3 Qc7 (9...Bb7 10.Na3 0–0 11.Be2 a6 12.Qc2 h6 13.ba6 Ba6 14.Ba6 Ra6; 9...0–0 10.Na3 Bb7 11.Be2 Qc7 12.Nc4 a6 13.ba6 Ba6 14.Qc2 Bc4; 9...Qe7 10.Na3 0–0 11.Be2 Bb7 12.Qc2 Bc7 13.Nc4 a6 14.ba6 Ra6) 10.Na3 Bb7 11.Be2 0–0 12.Nc4 a6 13.ba6 Ba6 14.Qc2 Bc4; D) 9.g3 0–0 (9...Bb7 10.Na3 0–0 11.Be2 Qc7 12.Qc2 Ne5 13.Ne5 Be5 14.Be5 Qe5; 9...Qc7 10.Na3 Bb7 11.Be2 0–0 12.Nc4 a6 13.ba6 Ba6 14.Qc2 Bc4) 10.Be2 Bb7 11.Na3 Qc7 12.Qc2 Ne5 13.Be5 Be5 14.Ne5 Qe5; E) 9.Na3 Bb7 (9...0–0 10.Bd3 Bb7 11.Nc4 Qc7 12.h3 a6 13.ba6 Ba6 14.Qb3 b5; 9...Qc7 10.Qc2 0–0 11.Be2 Bb7 12.g3 Ne5 13.Ne5 Be5 14.Be5 Qe5) 10.Be2 0–0 11.Nc4 Qc7 12.Qa4 Be7 13.Qc2 g6 14.Qc3 a6.

8.0–0 Be7 9.a4 (9.d4 a6+=) 9...0–0 (9...Bb7 10.Qe2=) 10.d3 Bb7 11.Nbd2 Qc7 (11...a6 12.Qc2=) 12.e4 (12.Qc2 a6=) 12...Bd6 (12...a6 13.Qc2=) 13.h3 (13.a5 Rad8=) 13...Rfe8 (13...a5 14.Qb3=) 14.Qb3 (14.Qe2 Bf4=) 14...Rad8 (14...a6 15.ba6 Ba6 16.Rfb1=) 15.Rfe1 (15.a5 Bf4=) 15...Ne5= 16.Ne5 (16.a5 Re7+=) 16...Be5 17.Be5 Qe5 18.Nf3 (18.a5 Qh5=) 18...Qc7 (18...Qh5 19.Qc3=) 19.Qc3 (19.a5 e5=) 19…h6 (19...e5 20.a5=) ½–½. Brzoza,Miroslaw – Burzynski,K, corr Poland, 1981.

8.a4 Bb7 9.0–0 Ng4 10.h3 h5 (10...Ngf6 11.d3=) 11.d4 (11.d3 Nge5 12.Be5 Bf3 13.Qf3 Ne5+=) 11...Qc7 (better is 11...cd4 12.Bd3 de3 13.hg4 hg4 14.fe3 gf3 15.Rf3 Bf3 16.Qf3 Rc8–+) 12.dc5?? (better is 12.d5 Nde5 13.Ne5 Ne5 14.Ba2+=) 12...Bf3–+ 13.Qf3 (13.hg4 hg4 14.Qd6 Bd6 15.gf3–+) 13…Qh2 0–1. fagus54 – jjsmetoch, kurnik, 2013.

8.d4 a6 =.

8.0–0 Bb7

9.Na3 Be7= (9...Bd6 10.Be2 0–0 11.Nc4 Qc7 12.Qa4 Be7 13.Nfe5 a6 14.h3 Rfc8; 9...Qc7 10.Bd3 Ng4 11.g3 Nde5 12.Be2 0–0–0 13.Ne5 Ne5 14.Qc2 Nf3; 9...h6 10.Bd3 Be7 11.Nc4 0–0 12.Qc2 Qc7 13.Nfe5 Ne5 14.Be5 Qd7; 9...Qb8 10.Bd3 Ng4 11.g3 Nge5 12.Ne5 Ne5 13.Be2 Qd6 14.Be5 Qd5) 10.Qc2 0–0 11.Bd3 Qc7 12.Nc4 g6 13.Qc3 a6 14.a4 ab5.

9.Bb3 Be7 (9...a6 10.Nc3 Bd6 11.a4 a5 12.g3 0–0 13.Qe2 Qc7 14.d3 Ne5; 9...h6 10.d4 Bd6 11.Nbd2 0–0 12.Nc4 Be7 13.Nfe5 Rc8 14.Rc1 cd4; 9...Qc7 10.Na3 Be7 11.Nc4 0–0 12.h3 a6 13.ba6 Ba6 14.a4 Nd5; 9...Bd6 10.Na3 0–0 11.Nc4 Qc7 12.h3 a6 13.ba6 Ba6 14.a4 Bc4; 9...h5 10.Qe2 Qc7 11.Na3 Be7 12.Nc4 0–0 13.Nfe5 Ne5 14.Ne5 a6) 10.Na3 0–0 11.Nc4 a6 12.a4 Qc7 13.ba6 Ra6 14.h3 Nd5.

9.Nc3 Qc7 (9...Bf3 10.gf3 Ne5 11.Be2 Nd3 12.Qc2 c4 13.f4 Bb4 14.Bf3 Rc8; 9...h6 10.d4 Bd6 11.d5 ed5 12.Nd5 0–0 13.Nf4 Qb8 14.Ng6 Bf3) 10.Qe2 (10.Be2 Bd6= 11.h3 0–0 12.Qa4 Rfc8 13.Rac1 c4 14.Nd1 Qd8; 10.h4 Ng4 11.Re1 Ndf6 12.Qe2 Bd6 13.Rad1 0–0 14.e4 h6) 10...Bd6 (10...Rd8 11.Rad1 Bd6 12.h3 0–0 13.Bb3 h6 14.d4 cd4) 11.Rfe1 (11.h3 0–0= 12.Rad1 Rfd8 13.Bb3 a6 14.d4 h6; 11.Rad1 0–0 12.h3 Rfd8 13.Bb3 Rac8 14.Bc2 c4) 11...0–0 (11...Bf3 12.Qf3 Bh2 13.Kh1+= 0–0 14.g3 Ne5) 12.e4 (12.h3 h6= (12...Bf3 13.gf3 Ne5 14.Ne4 Ne4) 13.Rac1 Bf3 14.gf3 Ne5) 12...Ne5'=/+ 13.Ne5 (13.h3 Nfd7+= (13...h6 14.d3 Nf3) 14.d3 Nf3; 13.g3 h6 14.Rad1 Rfd8) 13...Be5–/+ 14.g3 (14.h3 Ne4 Deflection: c3 15.Bd3 f5 16.Ne4 Bb2–/+ (worse is 16...fe4 17.Be5 Qe5 18.Be4 Be4 19.Qe4 Qe4 20.Re4+=)) 14...Ne4! 15.Ne4 Bb2 16.Rab1 Bd4 17.d3 h6 18.Nd2 Rfe8 19.Qh5 (19.Rb3 Qd7–/+) 19...Rad8 (19...a6 20.ba6 Ba6 21.Qe2–+) 20.a4 Ba8 21.Kf1 (21.Ne4 Qb7 22.Kf1 Kh7 23.Ng5 Kh8–+) 21...Bc3 22.Ke2 (22.Rbd1 Qb7 23.f3 Bd2 24.Rd2 Qf3 25.Qf3 Bf3–+) 22...Qb7 23.Kd1 (23.f3 Rd4–+) 23...Qg2 24.Rf1 (24.Ke2–+) 24...Bd2 25.Kd2 Bd5 26.Kc3 (26.Bd5 is not much help 26...Rd5 (26...Qd5?! 27.Qd5 Rd5 28.Rfd1–+; 26...ed5?! 27.Rbe1–+) 27.Qe2 c4–+) 26...Bc4 27.dc4 Rd4 28.Rbd1 Red8 29.Qe2 Rd1 30.Rd1 Rd1 31.Qd1 Qf2 32.Qd8 Kh7 33.Qd3 g6 34.Qd7 e5 35.Qa7 Qd4 36.Kb3 Qd3 37.Kb2 Qd2 38.Kb3 Qb4 39.Ka2 Qc4 40.Ka3 e4 41.a5 e3 42.ab6 e2 43.Qe7 Qc3 44.Ka4 Qb4# 0–1. Tenjinbayashi,H – Kong Hock Heng, Asia–chT fin, 1986.

9.Nc3 Be7 10.d3 A) 10...a6 11.a4 (11.ba6 Ba6 12.Qe2 Bb7 13.Rfd1 0–0 14.d4 Qb8 15.e4 cd4 16.Rd4 Ne5=) 11...ab5 12.Nb5 0–0 13.Qe2 Ra5 14.Bc3 Ra8 15.e4 Re8 16.Rfb1 Ra6+=; B) 10...0–0 11.a4 (11.Qe2 a6 12.ba6 Bf3 13.Qf3 Ne5 14.Qg3 Nc4 15.dc4 Qd3 16.Qc7 Bd6=) 11...Bd6 12.Ne4 Be4 13.de4 Qc7 14.Qc2 Ne5 15.Be5 Be5 16.Rac1 Rfd8=.

9.Nc3 Be7 10.d4 cd4 (10...a6 11.ba6 (11.Qe2 Bf3 12.Qf3 cd4 13.ed4 Rc8 14.Bd3 ab5 15.Nb5 Nd5 16.Rfc1 0–0=) 11...Ba6 12.Ba6 Ra6 13.Qe2 Ra5 14.Rfd1 0–0 15.d5 ed5 16.Nd5 Nd5+=; 10...0–0 11.Qe2 (11.d5 ed5 12.Nd5 a6 13.ba6 Ba6 14.Ba6 Ra6 15.Qd3 Nb8 16.Ne7 Qe7+=) 11...Bf3 12.Qf3 cd4 13.ed4 Bd6 14.Bd3 Qb8 15.g3 Rd8 16.Rfc1 Bb4+=) 11.Qd4 (11.Nd4 0–0 12.Be6 fe6 13.Ne6 Qe8 14.Nf8 Qf8 15.f3 Nc5 16.Qe2 Qf7=) 11...Nc5 (11...Bf3 12.gf3 Rc8 13.Rfc1 Bc5 14.Qf4 g5 15.Qg3 Be3 16.fe3 Rc4+=) 12.Qd8 (12.Rfd1 Bf3 13.Qd8 Rd8 14.gf3 Bd6 15.f4 Rd7 16.Ne2 0–0=) 12...Rd8 13.Rfd1 0–0 (13...Bd6 14.Be2 Rd7 15.Nd2 e5 16.Nc4 Bc7=) 14.Ne5 Rd1 15.Rd1 Rd8 (15...Rc8 16.f3= Ncd7=) 16.Rd8 Bd8 17.Nc6 Bc6 (17...Bc7 18.Na7 Ng4 19.Be2 Bh2 20.Kf1+/–) 18.bc6+/– a6 (18...Ne8!?+/–) 19.Ba3+– Nfe4 20.Ne4 Ne4 21.Ba6 Bc7 22.Bb4 Nf6 23.Kf1 Nd5 24.Bd2 h6 25.Ke2 g5 26.g3 Kg7 27.e4 Ne7 28.Bb5 Nc8 29.Kd3 Nd6 30.a4 Kf6 31.f4 Nb7 (31...gf4 32.gf4 Ke7+–) 32.cb7 gf4 (32...Bb8 33.Be3+–) 33.gf4 (better is 33.Bf4!? e5 34.Bh6 Ke6+–) 33...Ke7 34.e5 f6 (34...Bb8 35.Bb4 Kd8+–) 35.Bb4 Kf7 36.Bd6 Bd6 37.ed6 h5 (37...f5 38.b8Q Kg7 39.Qc7 Kg8 40.d7 Kf7 41.d8Q Kg6 42.Be8) 38.b8Q Kg6 (38...Kg7 39.Qb7 Kg6 40.Be8 Kf5 41.Ke3 h4 42.h3 e5 43.Qd7) 39.d7 1–0. poesimannen (1965) – anymove (1785), gameknot.com, 2013.

9.Nc3 Be7 10.e4 A) 10...a6 11.ba6 (11.Re1 ab5 12.Bb5 0–0 13.Qc2 e5 14.Rab1 Re8 15.Bc4 Rf8 16.Nb5 Qb8=) 11...Ba6 12.Ba6 Ra6 13.Qe2 Ra7 14.d4 0–0 15.Rfd1 Qa8 16.d5 ed5+=; B) 10...Ne4 11.Ne4 (11.Qe2 Nd6 12.Bd3 Bf3 13.Qf3 Ne5 14.Qe2 Nd3 15.Qd3 0–0 16.Qe2 Bf6–/+) 11...Be4 12.Bg7 Rg8 13.Bc3 Qc7 14.d3 Bb7 15.Re1 Qf4 16.Re3 Bf6+=.

9.Nc3 Be7 10.Re1 A) 10...a6 11.e4 (11.d4 ab5 12.Bb5 0–0 13.e4 cd4 14.Nd4 Qc7 15.Qf3 Rfd8 16.Rac1 Nc5=) 11...ab5 12.Bb5 0–0 13.a4 e5 14.Qc2 Bd6 15.Qd3 Bb8 16.Nh4 Ra5+=; B) 10...Bf3 11.Qf3 (11.gf3 Ne5 12.d3 0–0 13.Qe2 a6 14.Rad1 Nc4 15.dc4 Qc7 16.ba6 Ra6+=) 11...Ne5 12.Qe2 Nc4 13.Qc4 0–0 14.Red1 a6 15.d4 ab5 16.Qb5 Qc7=.

9.Nc3 Be7 10.Be2 A) 10...a6 11.d4 (11.ba6 Ba6 12.Ba6 Ra6 13.Qe2 Ra5 14.d4 0–0 15.Rfd1 Qa8 16.dc5 Nc5=) 11...ab5 12.Bb5 0–0 13.Qe2 Bf3 14.Qf3 cd4 15.ed4 Ba3 16.Rfb1 Qc7=; B) 10...0–0 11.d4 (11.Rc1 a6 12.d4 ab5 13.Bb5 Bd6 14.Re1 Qc7 15.Bc4 Bf3 16.Qf3 cd4+=) 11...a6 12.a4 ab5 13.ab5 Ra1 14.Qa1 Qc7 15.Qa4 Ra8 16.Qc4 Bd6=.

9.d4 Qc7 10.Nbd2 Bd6 11.Qa4 0–0 12.Rac1 e5 13.g3 h6 14.Rfd1 ed4.

9.d4 Rc8 10.Nc3 cd4 11.Qd4 Qc7 12.Be2 Bc5 13.Qh4 0–0 14.Rac1 Bf3.

9.d4 cd4 10.ed4 Bd6 11.Nbd2 0–0 12.Bd3 Rc8 13.Re1 Qc7 14.Ne4 Ne4 15.Be4 Be4 16.Re4 Nf6 17.Re2 Rfd8 18.Rc1 Qb8 19.Qb3 Nd5 20.Rc8 Rc8 21.Ne5 Nf4 22.Rc2 Qb7?? (22...Rc2 23.Qc2 Nd5 24.Qe2=) 23.Rc8?? (better is 23.Qf3 Qb8 24.Rc8 (24.Qf4 Rc2 25.Qf7 Kh8–+) 24...Qc8 25.Qf4+–) 23...Qc8= 24.Nc6 Qc7 25.g3 Nh3 26.Kg2 Ng5 27.Qe3 h6 28.h4 Nh7 29.Qa3?? (better is 29.Ba3+=) 29...Ba3–+ 30.Ba3 a6! 31.ba6 (31.Ne7 Kh8 32.ba6–+) 31...Qc6 32.Kh2 Qa4 (32...Qa4 33.Be7 Qa2–+) 0–1. typ48 – aabccdee, playok.com, 2012.

9.d4 cd4 10.ed4 Be7 11.Nbd2 0–0 12.a4 Rc8 13.Be2 Qc7 14.Rc1 Qb8 15.Ne5 Ne5 16.de5 Nd5 17.Bf3 Qa8 18.Rc8 Rc8 19.Qb1 Nc3 20.Bc3 Rc3 21.Bb7 Qb7 22.Rc1 Qc7 23.Rc3 Qc3 24.Nf1 (better is 24.Nf3=) 24...Qe5–/+ 25.Qc2 Bc5 26.Qd3 h6 27.Qd7 Qe2 28.Qe8 Kh7 29.Qf7 e5 30.h3 e4 31.Ng3 Qe1 32.Kh2 Bf2 33.Qf5 Exerts pressure on the isolated pawn 33...Kh8 34.Qf8 Kh7 35.Qf5 g6 36.Qf7 Kh8 37.Qf8 Kh7 38.Qe7 Kg8 39.Qe8 Kh7 40.Qe7 Kg8 41.Qe8 Kg7 42.Qe7 Kg8 ½–½. typ48 – aabccdee, playok.com, 2012.

9.d4 cd4 10.Bd4 Bd6 11.Nbd2 0–0 12.Rc1 Rc8 13.Qc2 e5 14.Bc3 e4.

9.d4 cd4 10.Nd4 Bc5 11.Nc6 (11.Qe2+=) 11...Bc6 (11...Qc7!?=) 12.bc6+= Nf8 13.Qd8 Kd8 14.Be5 Ke7 15.Nc3 Ng6 16.Bg3 (better is 16.Bf6!? Kf6 17.Ba6+/–) 16...Nh5= 17.Rad1 Ng3 18.Rd7 Ke8 19.fg3? (better is 19.Nb5 Rc8 20.hg3=) 19...Ne5–+ 20.Rb7 Be3 (20...Nc4!? 21.Nb5 Ne3 (21...Be3?! 22.Kh1=) 22.Nc7 Ke7 23.Na8 Kd6 24.Rff7 Ra8–+) 21.Kh1–/+ Nc4 22.Rff7 (22.Nb5 Rc8 23.Rff7+=) 22...Bc5–+ 23.Ne4 (better is 23.Rg7 Rf8 24.h4 Rf1 25.Kh2–/+) 23...Rf8 24.Rf8 Kf8?? (better is 24...Bf8 25.Ng5 Rc8–+) 25.c7+– Rd8?? (better is 25...Rc8 26.Rb8 Ke8 27.Rc8 Kd7+–) 26.cd8Q mate (26.cd8R?!= mate) 1–0. emeryt85 (1670) – fors, kurnik, 2012.

9.d4 Bd6 10.Nc3 0–0 11.d5 ed5 12.Nd5 Nd5 13.Bd5 Bd5 14.Qd5 Nf6.

9.Be2 a6 10.ba6 Ba6 11.Nc3 Be2 12.Qe2 Be7 13.d4 0–0 14.Rfd1 Qc7.

9.Be2 Qc7 10.Na3 Bd6 11.Nc4 0–0 12.Qa4 Be7 13.Qc2 g6 14.h3 a6.

9.Be2 Bd6 10.Na3 Qc7 11.Nc4 0–0 12.g3 a6 13.ba6 Ba6 14.Qc2 Bc4.

9.Be2 Be7 10.Qa4 Qc7 11.Nc3 h6 12.h3 0–0 13.Rfd1 Ne5 14.Ne5 Qe5.

9.Be2 Be7 10.d3 0–0 11.Nbd2 Qc7 12.Ne4 (12.Qc2 a6 13.a4 ab5 14.ab5 Bd6=) 12...Be4 13.de4 Rad8 (13...Ne4 14.Bd3 Nef6 15.Qd2=) 14.Qa4 Qb7 15.e5 Nd5 16.Bc4 Qb8 17.Rad1 Ne5?? (better is 17...Qb7+/–) 18.Be5 Bd6 19.Bd6 Qd6 (19...Rd6 20.Qc2+–) 20.Bd5 ed5 21.Qa7 Ra8 22.Qb7 Ra2 (22...Rfd8 23.Rd2 Rab8 24.Qc6 Qc6 25.bc6+–) 23.Rd5 Qf6 (23...Qb8 24.Rd7 Ra5 25.Qc6+–) 24.Rd7 (24.Ne5 Re8+–) 24...Raa8 25.Qc6 Qc6 26.bc6 Rac8 27.c7 f6 28.Rb1 (better is 28.Rfd1 g5+–) 28...Rf7 29.Rd8 Rf8 30.Rf8 Kf8 31.Rb6 Rc7 32.Kf1 Ke7 33.Ke2 Kf7 34.Nd2 Kg6 35.Nc4 h5 36.e4 Kg5 37.Ke3 g6 (37...h4 38.f4 Kh5 39.e5 fe5 40.Ne5+–) 38.h3 (better is 38.f4!? Kh6 39.Rf6 Kg7+–) 38...h4 (38...Rf7 39.Rc6+–) 39.f4 (39.f4 Kh6 40.Rf6+–) 1–0. typ48 – aabccdee, playok.com, 2012.

7.Bc4 Nb6

8.Qc2 Nc4 9.Qc4 b6 10.0–0 Bb7 11.Ne1 Bd5 (11...a6 12.d3=+) 12.Qa4 Bd6 13.f4 (13.d3=) 13...Ng4 (13...0–0 14.Nc3 Bb7 15.d3=+) 14.Nf3 (14.e4!? Bb7 15.h3+=) 14...Bf3 15.Rf3 Qh4 16.h3 h5 (better is 16...Nf6=) 17.Qe4+– (17.hg4 hg4 18.Qe4 Rc8 19.Bg7 Qh2 20.Kf2 gf3 21.Qf3 Rg8–/+) 17...Rd8 18.Bg7 (18.hg4 hg4 19.Bg7 Qh2 20.Kf2 gf3 21.Qf3 Rg8–+) 18...Rg8 19.Qh7 (19.hg4?! hg4 20.Qc6 Rd7=) 19...Ke7 20.Nc3 (20.hg4 Qg4 21.f5 ef5–/+) 20...Nf6 21.Bf6 Qf6 22.Qh5 Rg6 23.Rf2 Rh8 24.Qf3 Qh4 25.Kf1 f5 26.Qb7 Kf6 27.Qa7 Rhg8 28.Rd1 Qh8 29.Qb6 Rd8 30.a4 Ke7 31.a5 c4 32.a6 Bb4 33.Rc1 Rg3 34.Qc7 Rd7 35.Qc4 Bd6 36.b6 (36...Qa8 37.Nb5+–) 1–0. Grehl,Siegfried – Wobick,R, corr SOK–89–46, 1989.

8.Be2 c4 9.Nc3 Bb4 10.a4 a5 11.0–0 0–0 12.Ba3 (12.d3 cd3 13.Bd3 Bd7+=) 12...Qc7 13.Qc2 e5 14.Rfc1 (14.Bb4 ab4 15.a5+=) 14...g6 (14...Ba3!? 15.Ra3 Qe7=) 15.d4 (15.Bb4!? ab4 16.a5+/–) 15...ed4 16.Nd4 (16.ed4?! Qd6 17.Bb4 ab4+=) 16...h5 (16...Qd6 17.Bb4 ab4 18.a5+/–) 17.Nd1 Rd8 (17...Ng4 18.g3 Ba3 19.Ra3+/–) 18.Bc4 (18.Bb4 ab4 19.a5 Nbd5+–) 18...Ng4? (18...Nc4 19.Qc4 Qc4 20.Rc4 Ba3 21.Ra3+/–) 19.g3 (19.Qg6 Kf8 20.Bb4 ab4 21.Bf7 Qh2 22.Kf1 Ne5 23.Qh5 Qh5 24.Bh5 Ra4 25.Ra4 Na4+–) 19...Rd4? (better is 19...Qc4!? 20.Qc4 Nc4 21.Rc4 Ne5+/–) 20.ed4+– Bf5 21.Bf7?? (better is 21.Qe2 Ba3 22.Ra3+–) 21...Qf7= (21...Kf7?? 22.Qc7 Nd7 23.Bb4 ab4 24.Qb7+–) 22.Qc7 Ba3 (22...Qc7 23.Rc7 Nd5 24.Rcc1= (24.Rb7? Ba3 25.b6 Bf8–+)) 23.Ra3 Qc7 24.Rc7 Rb8 25.Ne3 Ne3 26.fe3 (worse is 26.Re3 Nd5 (worse is 26...Na4 27.Ree7+=) 27.b6 Ne3 28.fe3 Be4–/+) 26...Nc4?? (26...Nd5 27.Rc5 Be4 28.Kf2+=) 27.Rc3 Nd6 28.d5 Re8= 29.Kf2 Ne4–/+ 30.Kg1 Nc3 31.Rc3 Rc8 32.Rc8 Bc8 33.e4 Kf7 34.Kf2 Kf6–+ 35.Ke3 Ke5 36.Kd3 b6 37.Kc4 Bd7 38.Kd3 g5 39.Ke3 Bc8 40.Kd3 Bd7 41.Ke3 Be8 42.Kd3? Bg6 43.Ke3 Be4 44.d6 Bf5 45.d7 Bd7 0–1. kannisogoet – ziher, kurnik, 2012.

8.Be2 Bd6 9.0–0 0–0 10.h3 Bd7 11.a4 a6 12.Nc3 c4 13.a5 Nbd5 14.b6 Nc3 15.Bc3 Ne4 (15...Rc8 16.Rc1=) 16.Be5 Be5 17.Ne5 (17.Bc4?? Ba1 18.Qa1 Bb5–+) 17...Rc8 (17...Bb5 18.Qc2 (worse is 18.Nc4 Bc4 19.Bc4 Nd2–/+) 18...Qd2 19.Qe4 Qe2 20.Qb7=) 18.Rc1 Bb5 Attacks the backward pawn on d2 19.Bf3?? (19.Bc4 Qd2 20.Bb5 Rc1 21.Qc1 ab5 22.Qd2 Nd2 23.Rd1+–) 19...Nd2–/+ 20.Bb7 Nf1 (20...Rc5 21.Nf3 Nf1 22.Qf1–/+) 21.Qd8 (21.Bc8 Qd1 22.Rd1 Rc8 23.Kf1 f6+=) 21...Rfd8 (better is 21...Rcd8 22.Kf1 c3 23.Ke1 f6–/+) 22.Bc8+/– Rc8 23.Rf1 f6 24.Nf3 e5 25.Rc1 Kf7 26.g4 Ke6 27.Kf1 Kd5 28.Ke1 Kc6 29.Kd2 Kb7 30.Kc3 Rd8 31.Ne1 g6 32.Rc2 f5 33.Rd2 Rd2 34.Kd2 fg4 35.hg4 h6 36.f3 Bc6 37.e4 h5 38.gh5 gh5 39.Ke3?? Bd7 40.f4 ef4= 41.Kf4 h4 42.Nf3 h3 43.e5 c3–/+ 44.Ne1?? h2–+ 45.Kg5 h1Q 46.Nd3 Qg1 47.Kf6 Qf1 48.Ke7 Qd3 49.e6 Be6! 50.Ke6 c2 51.Ke7 c1Q 52.Kf6 Qe1 (52...Qe1 53.Kg5 Qe7 54.Kh5 Qf5 55.Kh6 Qef6 mate; 52...Qf4 53.Ke7 Qfd6 54.Ke8 Q3g6 mate) 0–1. elektrooon – beautifulstar, kurnik, 2012.

8.Be2 Bd7 9.0–0 =.

8.Be2 Be7 9.0–0 0–0 10.a4 Nbd5 11.Na3 (11.d4 b6=) 11...b6 (11...a6 12.d4=) 12.Ne5 Bb7 13.d3 (13.a5 ba5 14.Nac4 a6 15.Ra5 ab5 16.Rb5 Qc7=) 13...Qd6 (13...a6 14.Bf3=) 14.Nac4+= Qc7 15.a5 Nd7 (15...ba5 16.Qb3+=) 16.a6 Bc8 17.Nc6 Bg5 (17...Bf6 18.Qc2+=) 18.Qd2 (18.Bf3 Re8+/–) 18...Re8 (18...Bf6 19.Bf3+/–) 19.f4 (19.Rfc1 Bf6+/–) 19...Bf6 20.Bf6 (20.Bf3 Bb2 21.Qb2 Nb8 22.Nb8 Rb8+=) 20...N7f6 21.e4 Ne7 22.N4e5 (better is 22.Ne7!? Qe7 23.e5+/–) 22...Nc6= 23.bc6 Rd8 24.Bf3 (24.Qe3 Ne8=) 24...h6 (24...Ne8 25.Nc4=) 25.Qe3 Rb8 26.Rfc1 (26.Rfd1 Nh7=) 26...Ne8 (26...Nh7 27.Rcb1=) 27.Bh5 g6 (27...Nd6 28.d4=) 28.Qg3+= Qe7 29.Bd1 (29.Bg4 Nc7=) 29...Nc7= 30.f5 (30.Bb3 Qd6= (worse is 30...Na6 31.f5+/–)) 30...ef5 (30...Qd6 31.Bb3=) 31.Bb3+= Be6 32.Be6 Ne6 33.ef5 Nd4 34.Ng6 fg6 35.Qg6 Kh8? 36.Qh6+– Kg8 37.Re1 Qc7? 38.Re4 Threatening mate: Rg4 38...Nf5 39.Rg4 (39.Rg4 Qg7 40.Qe6 Kh8 41.Rg7 Ng7 42.Qh6 Kg8 43.c7+–) 1–0. Bendig,Frank – Rochlitz,Heike, corr ICCF, 1988.

8.Be2 Be7 9.0–0 0–0 10.Nc3 Nbd5 11.d4 b6 12.Ne5 Qc7 13.Rc1 Bb7 14.Bf3 Rfd8 15.h3 Bd6 16.Nc4 cd4 17.Nd5 Bh2 (17...Bd5 18.Bd4 Bc4 19.Ba8 A) 19...Ra8 20.Bf6 Bh2 21.Kh1 Bf1 22.Rc7 (22.Qf1?! Qb8+=) 22...Bc7 23.Qg4+– (23.Qf1?! gf6 24.Qc4 Be5+–); B) 19...Ba3+/–) 18.Kh1+/– Bd5 19.Bd4 Bc4 20.Ba8 Ra8 21.Bf6 Bf1 22.Rc7 (22.Qf1?! Qd6 23.Rc6 Qb8+=) 22...Bc7 23.Qg4 (23.Qf1?! gf6 24.Qc4 Bd6+–) 23...g6 24.Qe4 Rf8 25.Qh4 (better is 25.Qb1 Bd8 26.Bd8 Bg2 27.Kg2 Rd8+–) 25...h5 26.g4 (26.Bb2 Bb5 27.Qb4 Rd8+–) 26...Be2 27.Kg2 e5 (better is 27...Kh7+–) 28.gh5 Bh5 29.Qg5 Kh7 30.Be5 f6 (30...Bd8 31.Bf6 Bf6 32.Qf6+–) 31.Bf6 1–0. Krebbers,Wilfried (1935) – Versteeg,Cees (1925), Goch op, 2004.

8.Be2 Be7 9.0–0 0–0 10.d4 Bd7 =.

8.Be2 Be7 9.0–0 Bd7 10.d4 =.

7.Bc4 Bd6

8.a4 0–0 9.0–0 e5 10.d3 Qe7 11.Nbd2 Bc7 12.Qc2 Nb6 13.Rfc1 Bg4 14.Bb3 Rac8 15.Ba3 (15.Qc5?? Bd6 16.Qc8 Rc8–+) 15...Bd6 16.Qa2 h6 17.a5 Nbd7 18.Nh4 e4? (better is 18...Kh8+=) 19.Ng6+– Qe8 20.Nf8 Kf8 21.d4 Kg8 22.Nc4 Bb8 23.b6 Qe6?? (better is 23...ab6 24.Nb6 Nb6 25.ab6 cd4 26.ed4 Bf4 27.Rc8 Bc8+–) 24.Ne5! Qf5 (24...Be5 25.Be6) 25.Bf7 Kh8 (25...Kh7 26.Bg6 Qg6 27.Ng6 Kg6 28.h3+–) 26.Bg6 (26...Qe6 27.Qe6 Be6 28.Nd7 Bd7 29.Bc5 ab6 30.Bb6+–; better is 26.Ng6 Kh7 27.Ne7 Qg5 28.Nc8 Bf3+–) 1–0. Torok,Laszlo – Rajcsanyi,Zita (2160), HUN–chT2, 2003.

8.d4 0–0 9.0–0 Qc7 10.Nbd2 cd4 11.ed4 Nb6 12.Rc1 Nc4 13.Nc4 (worse is 13.Rc4 Qb6 14.Qb3 a6 15.ba6 Qb3 16.ab3 Ra6+=) 13...Bf4 14.Rc2 Rd8 15.Bc1 Bc1 16.Qc1 Bd7 17.a4 Be8 18.Qd2 Qe7 19.Rfc1 a6 20.Nb6 Rab8 21.Qg5 (better is 21.Nc8!? Qa3 22.Qf4+=) 21...ab5= 22.ab5 Qb4 Attacking the isolated pawn on d4 23.Rc7 Qb5 24.Qb5 Bb5 25.h3 h6 26.Re7 (26.Ne5!?+=) 26...Rd6–/+ 27.Nc8 Rc6 28.Rc6 Bc6 (28...bc6?! 29.Nd6+=) 29.Nb6 Kf8 30.Rc7 Ne8?? (better is 30...Bf3 31.gf3 g6–/+) 31.Rc6!+– bc6 32.Nd7 Ke7 33.Nb8 Kd6 34.Na6 (34.Ne5 c5 35.Nf7 Ke7+–) 34...Kd5 (34...f5+–) 35.Nb4 Kd6 36.Ne5 c5 (36...f6 37.Nec6 Nc7 38.Kf1+–) 37.Nc4 (37.Nc4 Kd7 38.dc5+–; 37.Nf7?! Ke7 38.dc5 Kf7+–) 1–0. Lorenc,To1 (2100) – Nester,I (2265), 40th Vsetin Open, 2015.

6.Nf3 Be7

7.a4 a6 8.Nc3 0–0 9.Be2 b6 10.0–0 a5 11.Qc2 Bb7 12.cd5 ed5 13.d4 Bd6 14.Bd3 g6 (14...c4 15.Bf5=) 15.Rfe1 c4 16.Bf1 Re8 17.g3 Bb4 18.Bg2 Ne4 19.Re2 Rc8 20.Bh3 f5 21.Rd1 Rc7 22.Ne1 Qg5 23.Bg2 Qh6 24.f4 (24.Rc1!?+=) 24...Ndf6–/+ 25.Nf3 Ng4 26.Ne4 fe4 27.Nh4 Be7 28.Bh3 (28.Bh1!?–/+) 28...Bc8–+ (28...Bh4?! 29.Bg4 Bf6 30.Rf2–/+) 29.Rde1 Ne3! 30.Re3 Bh3 31.Ng2 Bb4 32.Rc1 Bf5 33.Bc3 Qf8 34.Rb1 Rec8 35.Qb2 Ba3 36.Qd2 Bd6 37.Qe2 h5 38.Nh4 Bg4 39.Qg2 Qf6 40.Rf1 Rf7 41.Qd2 g5 42.Ng2 h4 43.Ree1 hg3 44.hg3 Bf3 (44...gf4 45.Nf4 Qg5 46.Qh2–+) 45.fg5 (45.Rf3 ef3 46.Rf1 fg2 47.Qg2–+) 45...Qe6 46.Qf2 (46.Re3 Bg3 47.Rff3 Rf3 48.Rf3 ef3 49.Qc2 f2 50.Qf2 Bf2 51.Kf2 Rf8 52.Kg1–+) 46...Qg4 (46...Qh3 47.Re3 Bg3 48.Qg3 Qg3 49.Rf2–+) 47.Ne3 (47.g6 Qg6 48.Nh4 Qg4 49.Re4 de4–+ (49...Be4? 50.Qf7 Kh8 51.Qf6 Kg8 52.Qd6+–)) 47...Qg5 48.g4 (48.Ng2 Bg3 49.Bd2 Bf2 50.Rf2 Qh5–+) 48...Rh7 (48...Qh6 49.Qg3 Bg3 50.Rf3 Qh2 51.Kf1 Rf3) 49.Bd2 Rh1 0–1. Chirpii,Alexandru – Gerbakher,Mikhail, Geller Memorial op–B 4th, 2008.

7.Qc2 b6 8.Bd3 Qc7 9.Nc3 Bb7 10.cd5 ed5 11.Ne2 0–0 12.g4 (better is 12.0–0!?=) 12...d4–/+ 13.Ned4 Bd6 14.Nc6 Bc6 15.bc6 Qc6 (15...Ng4?? 16.Bh7 Kh8 17.cd7+–) 16.Ke2 Rfe8 17.g5 (17.Bf5–/+) 17...Ne4 (better is 17...Nh5 18.Rhg1 Nf4 19.Kf1 Nd3 20.Qd3 Rad8–/+) 18.Rag1 b5 (18...Bc7!?+=) 19.Rg4 f5 20.gf6 Ndf6 21.Rhg1 Ng4? (21...Bf8 22.Rh4 Rad8 23.Be4 Ne4+–) 22.Rg4+– Qd7 (22...c4 23.Be4 Re4 24.Rg7 Kf8+–) 23.Rg7 (23.Rg7 Qg7 24.Bg7 Kg7 25.Be4+–; 23.Re4?! h6+–) 1–0. Leon Manas,Jose Francisco (1720) – Godoy Suarez,Daniel, Gran Canaria ESP, 3rd Mendoz Mem, 2011.

7.Qc2 h6 8.Be2 a6 (8...dc4 9.Bc4 0–0 10.0–0=) 9.ba6 ba6 10.Nc3 Bb7 (10...Rb8 11.0–0=) 11.0–0 Qc7 (11...Rb8=) 12.d4 (12.cd5 ed5 13.Rfb1 Rb8=) 12...dc4 (12...cd4 13.Nd4 dc4 14.Rab1=+) 13.dc5 (13.Rfd1 Bd6=+) 13...Bc5 14.Rac1 (14.Nd2 Nb6=+) 14...Bd6 (14...Rb8 15.Rfd1=+) 15.Na4 (15.h3 Rb8=+) 15...Bf3 16.Bf3 Rc8 (16...Bh2 17.Kh1 Rc8 18.g3 Bg3 19.fg3 Qg3 20.Bf6 gf6 21.Bb7=+) 17.h3 (17.g3 0–0=+) 17...0–0 (17...Ne5 18.Be2=) 18.Be2= Qa7 (18...Qa5 19.Bc4 Ne5 20.Bc3=+) 19.Bd4 (better is 19.Rfd1 Rc6 20.Bf3+=) 19...Bc5 (better is 19...Qb8!?=) 20.Nc5+/– Nc5 21.Qc4 Nfd7 22.Qc3 f6 23.Bc4 Rfe8 24.Rfd1 Kh8 25.Qa3 e5 26.Bb2 Nb6 27.Bb5+/– Nbd7 28.Be2 Red8 29.Bg4 Qb7 30.Rd2 Rc7? 31.Rdc2 Rcc8+/– 32.Bf5 e4? 33.Qc3?? Qd5= 34.g4 Rb8 35.Qa5 Qa8 36.Bd4 Nd3 37.Rd1 N7e5 38.Be5 Ne5 39.Rdc1 Nf3 40.Kf1 Nh4 41.Rc7 Rb5=+ 42.Qa3 Nf5 43.gf5 Rf5 44.Qe7 Rg8 45.R1c6 Qd8 46.Qd8 Rd8 47.Ra6 Rd2–+ 48.Ra8 Kh7 49.Raa7 Rff2 50.Ke1 Rfe2 51.Kf1 Rg2 52.Ke1 Rb2 53.Kf1 Ra2 54.Rab7?? Raf2 55.Ke1 Rf3 (56.Re7 f5–+) 0–1. nogumo – Look, mySchach.de, 2005.

7.Nc3 0–0 8.Qb3 (8.d4 cd4 9.Qd4 Qa5=) 8...d4 (8...Nb6!?=+) 9.ed4= cd4 10.Nd4 Nc5 (10...Bc5 11.Nf3=) 11.Qc2 Qd4 (better is 11...Qd6!?=) 12.Nd5!+/– Qe4 (12...Qd5 13.cd5) 13.Qe4+– Nfe4 14.Ne7 Kh8 15.Nc8 (15.d3!? Nf6+–) 15...Rfc8 (15...Rac8 16.d3 Nd6 17.Be5+/–) 16.d3 Nf6 (16...Nd6 17.Be2+/–) 17.Be2 Rd8 18.Rd1 Rd7 19.h4 (19.Ba1 a6 20.d4 Nce4+–) 19...Na4 (19...a6 20.Bf6 gf6 21.d4+/–) 20.Ba1 a6 (20...Kg8 21.h5+–) 21.Rb1 (21.ba6 Ra6 22.d4 Ra5+–) 21...Nc5 22.Rh3 ab5 23.Rb5 Ra2? (better is 23...b6+–) 24.Bf6 (24.Rc5 Ra1 25.Bd1 h6=) 24...Nd3 (24...gf6 25.Rc5 f5+–) 25.Rd3 (25.Bd3?! gf6 26.Bb1 Ra4+–) 25...Rd3 26.Bd3 gf6 27.Rb7 1–0. Diener,Rudolf – Neubert, corr, DDR (year?).

7.d3 0–0 8.Nbd2 (8.Be2 a6=) 8...Qc7 (8...Bd6 9.Be2=) 9.g3 (9.Be2 a6=) 9...b6 (9...a6 10.a4+=) 10.Bg2 Bb7 11.0–0 Rfd8 12.Qc2 h6 (12...a6 13.a4+=) 13.Rac1 (13.Rfb1 a6=) 13...Rac8 (13...a6 14.cd5 Bd5 15.e4=) 14.Rfd1 Ne8 (14...a6 15.ba6 Ba6 16.cd5 Nd5 17.Ne4=) 15.cd5 Bd5 16.e4 Ba8 (16...Bb7 17.a4=) 17.Nc4 Nd6 (17...Bf6 18.Bf6 Nef6 19.Qb2=) 18.Nd6+= Bd6 (18...Qd6 19.d4+=) 19.Qc3 (19.d4 cd4 20.Qc7 Rc7 21.Nd4 Rc1 22.Rc1 Ne5=) 19...Bf8 (19...e5 20.Nd2=) 20.Nd2 Nf6 (20...Bb7 21.d4=) 21.Nc4 (21.Qb3 Be7+=) 21...Rd7 (21...a6 22.a4=) 22.Qe1 (22.Qc2 Rdd8+=) 22...Be7 (22...Bb7 23.a4+=) 23.Ne5 (23.d4 Bb7+=) 23...Rdd8 24.Nc4 (24.d4 Qb8+=) 24...Ne8 (24...Rd7 25.d4+=) 25.Be5 (25.d4 Bg5 26.f4 Bf6=) 25...Qd7= Attacking the backward pawn on d3 26.a4 Bf6 (26...f6 27.Bc3+=) 27.Qc3 (27.d4 cd4 28.Rd4 Qe7 29.Rd8 Rd8 30.Bf6 Nf6+=) ½–½. Gross,Wilhelm – Merten,Rainer, xxviii/12, 1996.

7.d3 Qc7 8.Nbd2 (8.Be2 0–0=) 8...b6 9.Be2 Bb7 10.0–0 0–0 (10...a6 11.a4=) 11.Rc1 (11.Qc2=) 11...e5 (11...a6!? 12.a4 ab5 13.ab5 Ra5+=) 12.cd5= Nd5 (12...Bd5 13.e4 Bb7 14.Nc4+=) 13.Nc4 (13.Qb3 h6+=) 13...Bf6= 14.d4 (14.Qb3 a6 15.a4 Nb4=) 14...e4 (better is 14...ed4!? 15.ed4 Nf4+=) 15.Nfe5= Rfe8? (better is 15...Ne5 16.de5 Be7=) 16.Nd7+– Qd7 17.dc5 bc5 18.Bf6 gf6 19.Na5 Rac8 20.Bg4 f5 21.Bf5! Qf5 22.Nb7 Re6 (better is 22...Qe5+–) 23.Qe2 (23.Rc5 Rc5 24.Nc5 Rb6+–) 23...Qg5? (better is 23...Nb4+=) 24.Nc5+– Rg6 25.g3 Re8 (25...Qe7 26.Na4 Re8 27.Rfd1+–) 26.Nb3 (26.Rfd1 Qf5+–) 26...Rh6 (26...h5 27.Rfd1 h4 28.Nd4+–) 27.Nd4 Rh3 (27...Rd8 28.Rc5 Rd7 29.Rd1+–) 28.Rc5 Re5 (28...Rh6+–) 29.Nc6 Qh6 (29...Rf5 30.Rd1 Ne3 31.Rf5 Nf5+–) 30.Ne5 Nf6 31.Ng4 1–0. Teichmann,Erik (2325) – Khaled,Omar (1900), Melbourne Cup Weekender, 2010.

7.Bd3 0–0 8.cd5 (8.0–0 Nb6=) 8...ed5 9.0–0 b6 (9...Bd6 10.Nc3+=) 10.Nc3 Bb7 11.Rc1 (11.Qe2 Bd6=) 11...Bd6 12.g3 (12.Qc2 g6+=) 12...d4 (12...Re8 13.Be2+=) 13.ed4 cd4 14.Nd4 Nc5 (14...Ne5 15.Qe2 Re8 16.Be4 Ne4 17.Ne4–+) 15.Bf5 (15.Bc4 Qd7 16.Re1 Rfe8+=) 15...g6= 16.Bh3 (16.Bc2 Bg3 17.Nc6 Bc6 18.bc6 Be5=) 16...Nd3 17.Qc2 Nc1 18.Rc1 (18.Nc6 Bc6 19.bc6 Na2 20.Na2=) 18...Rc8 (better is 18...Bg3 19.Nc6 Bc6 20.bc6 Be5+=) 19.Bc8+= Qc8 20.f3 (20.d3 Qg4 21.Nc6 Re8+=) 20...Qh3 (better is 20...Qc5 21.Nd1 Re8 22.Qc5 Bc5+=) 21.Ne4?? (better is 21.d3!?+=) 21...Ne4 (better is 21...Be4!? 22.fe4 Bg3–+) 22.fe4+= Rc8 (22...Bc5!? 23.d3 Qd7+=) 23.Nc6= Bc5?? (better is 23...Bg3 24.hg3 Qg3 25.Kh1 Qh3 26.Kg1 Qg3 27.Kh1 Qh3 28.Kg1 Qg3=) 24.d4+– Bb4 25.Qe2 a5 26.Nb4 ab4 27.d5 Re8?? 28.Qf3 f5 29.Rc7 Re4 30.Qd1 f4 31.Rg7 Kf8 32.Rb7 f3 33.Qf3 Qf5 34.Qf5 gf5 35.Kf2 (35.Kf2 Re7 36.Re7 Ke7 37.Be5+–) 1–0. mtrc – shiean, internet, 2002.

7.Be2 a5 8.a4 0–0 (8...Nb6 9.Na3=) 9.Qc2 (9.0–0 dc4 10.Na3 c3 11.Bc3 b6=) 9...h6 (9...b6 10.0–0=) 10.d3 (10.0–0 Nb6=) 10...b6 (10...Bd6 11.0–0=) 11.Nbd2 (11.Nc3 Bd6=) 11...Bb7 (11...Bd6=) 12.0–0–0 (12.0–0!?=) 12...Qc7+= 13.Nh4 (13.Kb1 Rad8+=) 13...dc4 (13...Rad8 14.h3+=) 14.dc4 Ne4 (14...Rad8!?+=) 15.Ne4 (15.Ng6 fg6 16.Ne4 Nf6+=) 15...Be4?? (better is 15...Bh4 16.Nd6 Rad8= (16...Bf2? 17.Qc3 Nf6 18.Rhf1+–)) 16.Qe4+– (16.Qe4 Nf6 17.Bf6 Bf6 18.Nf3+–) 1–0. Kleinke,Uwe – Laufer,Norbert, corr DDR–ch I749, 1980.

7.Be2 a6 8.a4 dc4 9.Bc4 Nb6 10.Be2 ab5 11.ab5 Ra1 12.Ba1 Bd7 13.0–0 0–0 14.d4 cd4 15.Nd4 Nbd5 16.Qb3 Ne4 17.Bb2 Bf6 18.Rd1 Qb6 19.Bf3 Nc5 The isolani on b5 becomes a target 20.Qa2 Bb5 21.Bd5 ed5 (better is 21...Ba4 22.Bf3 Bd1 23.Bd1 Nd3=) 22.Qd5?? (better is 22.Nb5 Qb5 23.Bf6 gf6 24.Qd5+/–) 22...Bc6 23.Qa2 (23.Nc6?? bc6 (23...Bb2?! 24.Ne7 Kh8 25.Nf5+=) 24.Qh5 Bb2–+ (24...Qb2?! 25.Qc5 Rd8 26.Rf1+=)) 23...h6 24.Nd2 Nd3 (24...Rd8 25.Nc6 Qc6 26.Bf6 Qf6 27.Qc2=) 25.Bc3 (25.Nc4!? Nb4 26.Qb3+/–) 25...Qc5= 26.Qa1 Bd4 27.Bd4 Qg5 28.e4 f6 29.Qc3 Nf4= 30.Qg3?? Ne2–+ (30...Ne2 31.Kh1 Ng3 32.fg3 Rd8–+) 0–1. carocan (1860) – nartur (1995), kurnik, 2011.

7.Be2 b6 8.0–0 Bb7 9.cd5 Bd5 10.d3 0–0 11.Nc3 Bb7 12.e4 (12.Qc2 a6=) 12...Re8 13.a4 Qc7 14.Re1 Rad8 15.h3 Bd6 16.Nb1 Ne5 17.Nbd2 Nf3 18.Nf3 Be4?? (better is 18...e5=) 19.Bf6 gf6 20.de4 Bh2 21.Nh2 Rd1 22.Rad1 f5 23.ef5 ef5 24.Nf3 Qf4 25.Nd2 (25.Kf1!?+–) 25...Qa4 26.Ra1?? (26.Bf1 Re6+/–) 26...Qb4?? (better is 26...Qc2–+) 27.Nf3 Qc3 (better is 27...Re2!? 28.Re2 Qb5+=) 28.Ra7+– Qb4 29.Rb7 c4 (29...Re6 30.Kf1+–) 30.Rb6 c3 31.Rc6 Qb2 32.Rc7?? (32.Nd4 Qd2 33.Rd1 Re2 34.Rc8 Kg7 35.Rd2 cd2 36.Nf5 Kf6 37.Rd8 Re1 38.Kh2–/+) 32...Re2=+ 33.Re2 Qe2 34.Ng5?? (better is 34.Rc3 Qb5 35.Rc1–/+) 34...Qe1–+ 35.Kh2 Qe5 (36.f4 Qc7–+) 0–1. var – January, Live Game Caissa's Web, 2004.

7.Be2 Qc7 8.0–0 0–0 9.a4 a5 10.d3 b6 11.Nbd2 Bb7 12.Rc1 Rac8 13.Ba3 dc4 14.Nc4 Nd5 15.d4 Rfd8 16.dc5 Nc5 17.Nce5 Ne3 18.Qe1 Nf1 19.Qf1 Bd6 20.Nd3 Bf3 21.Bf3 Bh2 22.Kh1 Bd6 23.Nc5 bc5 24.Bc6 Qe7 25.Qc4 Qf6 26.Kg1 Qf4 27.Qf4 Bf4 28.Re1 c4 29.g3 Bd2 30.Rd1 c3 31.Kg2 c2 32.Rf1 Rd4 33.Bc1 Bc3 34.Be3 Rd1 35.Bc1 Rcd8 36.b6 Rf1 0–1. hal1958 – pbjarne, playchess.de, 2002.

7.a4 0–0

8.Qb3 a6 9.Be2 (9.Na3 d4 10.Bd3 e5=) 9...ab5+= 10.ab5 Ra1 11.Ba1 dc4 12.Qc4 Nb6 (12...b6 13.0–0+=) 13.Qc2 Nbd5 (13...Nfd5 14.0–0=) 14.0–0= Bd7 15.Ne5 +=. Katalymov,Boris Nikolayevich – Giterman, Alma Ata, 1958.

8.Qb3 d4 9.Bd3 +=.

8.Be2 a5 9.0–0= Nb6 10.Na3 Re8 (10...dc4 11.Nc4 Nfd5 12.d4+=) 11.Qc2 (11.d3 Bd6=) 11...h6 (11...Bd6 12.d4=) 12.d4 cd4 13.c5 d3 (13...Nbd7 14.Bd4 Ne4 15.c6 bc6 16.bc6+= (< 16.Qc6 Bb7 17.Qb7 Ndc5–/+)) 14.Bd3 Nbd7 15.c6 Nc5 16.Ne5 Qd6 17.Rfd1 b6 (17...Nd3 18.Qd3 bc6 19.Nc6+=) 18.Nac4 Qc7 19.Nb6?? (better is 19.Nd2+/–) 19...Qb6=+ 20.Bd4 (White gets the initiative) 20...Qc7 21.Bc5 Qe5 (21...Bc5 22.Qc5 Qe5 23.b6=+) 22.b6 Rb8 (better is 22...Bc5!? 23.Qc5 Ng4–/+) 23.Be7+= Rb6 (23...Re7 24.Qc5 Re8 25.Qa5–/+) 24.Bf6 (24.Qc5 Qc7 25.Bf6 Rc6+=) 24...Qf6+/– 25.Bb5 Rf8 (25...Re7 26.Qd2+/–) 26.Qd2 (26.Qc5 Qd8+/–) 26...Qd8 27.Qa5 Qc7 28.Rd4 (28.Rdc1 e5+/–) 28...Rc6 29.Qc7 Rc7 ½–½. Ulaneo,Ruben – Carvalho,Guillermo, URU–ch Uruguay, 1990.

8.Be2 a5 9.0–0= dc4 10.Qc2 =.

8.Be2 a6 =.

8.Be2 dc4 9.0–0 =+.

8.Be2 Qc7 9.Nc3 b6 10.cd5 ed5 11.d4 Bb7 12.0–0 Rfd8 13.Rc1 Rac8 14.g3 Qd6 15.Bd3 g6 16.Re1 Ne4 17.Bf1 cd4 18.Ne4 (18.Qd4!? Nc3 19.Bc3+=) 18...de4+= 19.Nd4 Ne5 20.Rc8 Rc8 21.Qb1 Qb4 22.Qa1 Nd3 23.Bd3 ed3 24.Rd1 d2 25.f3 Bd5 26.Nc6 (better is 26.Kf2!?+=) 26...Bc6–+ 27.Bc3 Qc5 28.Bd4 Qc2 29.bc6 Rc6 30.Kf2 Bc5 (30...Bb4 31.Ke2–+) 31.Ke2–/+ Bb4 32.Bb2 Qc4 33.Kf2 Re6 (33...Qd3!? 34.Be5–+) 34.Bh8–/+ f6 (34...Kf8!?–/+) 35.Bf6 Bc5 36.Bd4 Qd3?? (better is 36...Qc2 37.Bc5 bc5+= (worse is 37...Qc5 38.Qd4+=)) 37.Qa2+/– Kf7 38.Qd2 Qd2 39.Rd2 Bf8 40.Rc2 Re7 41.Rc6 Rb7 42.Ke2 Bb4 43.Be5 Ke7 44.Rc7 Rc7 45.Bc7 Kd7 46.Bb8 a6 47.Kd3 Kc6 48.Kc4 Bd2 49.e4 Be3 50.g4 Bf2 (50...g5!?+/–) 51.f4+– Be3 52.f5 b5 53.ab5 ab5 54.Kd3 Bg1 55.h3 Bf2 56.f6 Kd7 57.e5 Bc5 (57...g5 58.Bd6 Ke6 59.Bb4+–) 58.Kc3 (better is 58.Bd6!? Bd6 59.ed6 Kd6+–) 58...Ke6 59.g5 ½–½. Leib,Britta (2010) – Lehr,Thomas, Schleswig Holstein–ch VM, 2008.

7.a4 a5

8.Be2 0–0 9.0–0 Qc7 10.d4 dc4 11.Nbd2 (11.Bc4!? cd4 12.Qd4+=) 11...cd4=+ 12.Nd4 (12.Nc4 de3 13.fe3 Rd8=+) 12...c3 (12...e5 13.Nf5 Bb4 14.Nc4+=) 13.Rc1=+ Bb4 14.Nb1 Nd5 15.Qb3?? (better is 15.e4 Qf4 16.Nc3 Nc3 17.Bc3 Bc3 18.Rc3 Qe4 19.Bd3=+) 15...Nc5–+ (16.Qa2 cb2 17.Qb2 e5–+) 0–1. Merino Rey – Rossi Vergara, corr Spain, 1988.

8.Be2 0–0 9.Qc2 dc4 10.Na3 Nd5 11.Nc4 Nb4 12.Qb3 b6 13.0–0 Bb7 14.Rfd1 Qc7 (14...Rc8 15.d3=) 15.Rac1+= Rfd8 16.d4 Bd5 (16...Rac8 17.Qc3=) 17.Nfd2 (17.Qc3 Na2 18.Qc2 Nc1 19.Rc1 Qb7–/+) 17...cd4 18.ed4 (18.Bd4 e5 19.Bc3 Nc5=) 18...Qb7 19.Qg3 Rac8 20.Bf3 Nf6 21.Bd5 Nfd5 22.Ne4 Qb8 23.Qb8 (23.Ne5 Bd6=) 23...Rb8=+ 24.Ne5 ½–½. Dieng,Markus – Munding,Gunter, Oberschwaben–ch, 1992.

8.Be2 Qc7 9.0–0 0–0 10.d4 b6 11.Nbd2 Bb7 12.Rc1 Rac8 13.Nb3 Qb8 14.Ba3 (14.dc5 Nc5 15.Nc5 Bc5= (worse is 15...Rc5 16.Bd4+/–)) 14...Rfd8 15.cd5 Bd5 16.Nfd2 (16.Bc4 Bf3 17.Qf3 Bd6 18.dc5 Bc5 19.Nc5 Nc5=) 16...Qa8 (better is 16...Bd6!?–/+) 17.Bf3 Bf3 18.Qf3 Qf3 19.Nf3 Bf8 20.dc5 Nc5 (better is 20...Ne4!?=) 21.Bc5+/– Bc5 22.Nc5 bc5 (22...Rc5!? 23.Rc5 bc5+/–) 23.Ne5+– Rd5 (23...Kf8 24.Nc6 Rd3 25.Rc5+–) 24.Nc6 Kf8 25.Rc4 (25.Na5!? Ne4+–) 25...Nd7+/– 26.Ra1 (26.Rh4!? h6 27.Na5+/–) 26...Ne5+= 27.Ne5 Re5 28.Kf1 f5 29.Rd1 Ke7 30.Ke2 g6 31.Rd2 Rd5 32.e4 Rd2 33.Kd2 Kd6 34.ef5 ef5 35.Rh4 Rc7 36.Kc3 (36.Rh3!? Rf7 37.Kc3+/–) 36...Re7+= 37.Rf4 Re1 38.h4 Rb1 39.g3 Rb4 40.Rb4 cb4 41.Kc4 Ke5 ½–½. Sieber,Martin – Fialka,Adam, Orlov Open, 2015.

8.Be2 Qc7 9.0–0 0–0 10.h3 Rd8 11.Na3 Bd6 12.d4 Qb6 (12...cd4 13.Qd4 e5 14.Qh4=) 13.Qb3 (13.cd5 Nd5 14.Rc1 Qc7+=) 13...Bb8 14.Rac1 Qd6 15.cd5 Ne4 16.Nc4+/– Qd5 17.Rfd1 Qh5 18.Qc2 ½–½. Huelle,Gunter – Kaiser,Michael (1775), Leipzig VfB op, 2004.

7.a4 b6

8.Qb3 Bb7 9.Be2 Qc7 10.0–0 0–0 11.d4 dc4 12.Qc4 Bd5 13.Qd3 c4 14.Qc2 Rac8 15.Nc3 Rfd8 16.Ba3 Bd6?? (better is 16...Ba3 17.Ra3 Bf3 18.Bf3 Qd6=) 17.Bd6+– Qd6 18.Rad1 (18.e4!?+–) 18...Qc7 19.Nd2 (19.Nd5?! ed5 20.Nd2 Re8=) 19...Ba8 20.Nce4 (better is 20.e4!?+/–) 20...c3 21.Nf6 Nf6 22.Nf3 Nd5 23.Rb1 Qe7 24.Bd3 Nb4 25.Rb4 Qb4 26.Rb1 Qd6 27.Bh7 Kh8 28.Ng5 (28.Ne5 Rc7 29.Be4 Be4 30.Qe4 c2=) 28...Rc7 (better is 28...Qe7!? 29.f4 g6 30.Bg6 fg6 31.Qg6 Rd7 32.Qh6 Kg8 33.Qg6 Qg7 34.Qe6 Kf8–/+) 29.Be4= f6 30.Ba8 fg5 31.Bc6 e5 32.Rd1 Qb4 33.d5 (33.de5 Rd1 34.Qd1 Rc6 35.Qd8 Kh7 36.Qd3 Kh6–+) 33...Qb2 34.Rc1 Qc2 35.Rc2 Rd6? (better is 35...Rc6 36.bc6 Rd5=) 36.e4+– (36.Rc3?! Rd5 37.h3 g6=) 36...Rf7 37.Rc3 1–0. typ48 – dariusz456, kurnik, 2012.

8.Nc3 Bb7 9.Be2 0–0 10.0–0 Qc7 11.Rc1 Rac8 12.d4 dc4 13.Bc4 Bf3 14.Qf3 cd4 15.Ne4 Qd8 16.Bd4 Ne4 17.Qe4 Bf6 18.Rfd1 Qe7 19.Bd3 g6 20.Rc8 Rc8 21.Qb7 Re8 22.Qa7 Bd4 23.ed4 Qd6 24.Be4 Nf6 25.Qb7 Rd8 26.Bc6 h5 27.Qb6 h4 28.h3 g5 29.Rd3 Nd5 30.Qc5 Qf4 31.Bd5 Rd5 32.Qc3 Qd6 33.Qc8 Kg7 34.Qc3 f5 35.g3 hg3 36.Rg3 f4 37.Rg4 Kf6 38.h4 gh4 39.Qh3 Rh5 40.Rh4 Rg5 41.Kf1 Qd4 42.Rh6 Kg7 43.Re6 Qc4 44.Re2 Qc1 45.Re1 Qc4 46.Re2 Qc1 47.Re1 Qc4 48.Re2 ½–½. Zylla – Hense, 1993.

8.d3 0–0 9.Be2 Qc7 10.0–0 Bb7 (10...dc4 11.a5 cd3 12.Qd3+=) 11.cd5 (11.Nbd2 a5=) 11...Nd5 12.Nbd2 Bf6 13.Bf6 N5f6 14.Rc1 (14.Qc2 Rfe8=) 14...Rac8 (14...a6 15.ba6 Ra6 16.d4=) 15.d4 (15.h3 h6=) 15...Qb8 16.dc5 (16.Qb3 cd4 17.Nd4 Nc5=) 16...Nc5+= 17.Nd4 (17.Rc2 Qd6+=) 17...Rc7 (17...Rfd8!?–/+) 18.Nc4 Qa8 19.Nc6 (better is 19.f3!?= is an interesting idea) 19...Bc6–/+ 20.bc6 White has a new passed pawn: c6 20...Rd8 21.Qc2 Qc6 The isolani on a4 becomes a target 22.Rfd1 Rcd7 (22...Rd1 23.Qd1 Nb7 24.Bf3–/+) 23.Rd7 Qd7 (23...Ncd7 24.Nb2 Qc2 25.Rc2+=) 24.Rd1 (better is 24.a5!? should be examined more closely 24...Qc6 25.Bf3=) 24...Qc7–/+ 25.Rd8 Qd8 26.Ne5 Nfe4 27.Bd3 Nd3 28.Nd3 Nc5 Black threatens to win material: Nc5xd3 29.Nb2 (29.Nc5 bc5 Passed pawn) 29...h6 (29...Qd5 30.h4–/+) 30.h3 Qd5 31.f3 Qb3 32.Qb3 Nb3 33.Kf1 Kf8 34.Ke2 Nc5 35.Kd2 Ke7 36.Kc3 Kd7 37.Kb4 Kc6 38.e4 f6 39.Kc4? Na6 40.f4 Nc5 41.e5?? Ne4 42.Nd3–/+ a5 43.Nf2?? f5 44.g4?? g6 45.h4?? b5 46.Kb3?? Nc5 47.Kb2 Na4 48.Kc2 fg4 (48...fg4 49.Ng4 h5–+) 0–1. Niephaus,Friedel – Kurbel,Horst Peter (1885), Pyramiden Franken Cup 4th, 2001.

7.a4 Qc7

8.a5 0–0 9.Qb3 (9.cd5 ed5 10.Be2 Qd8 11.0–0 Re8 12.d3 a6 13.b6 Bd6 14.Qc2 Qe7=; 9.Nc3 a6 10.b6 Qd6 11.d4 Rd8 12.cd5 Nd5 13.dc5 Nc5 14.Nd5 ed5+=) 9...Rb8 (9...Qd6 10.Be2 e5 11.d4 ed4 12.ed4 cd4 13.Bd4 Nc5 14.Qc2 dc4=) 10.Be2 b6 (10...Qd6 11.0–0 e5 12.d4 ed4 13.ed4 b6 14.Rd1 Rd8+=) 11.a6 Re8 (11...Qd6 12.0–0 e5 13.d4 ed4 14.ed4 Re8=) 12.d4 (12.0–0 dc4 13.Bc4 Bd6 14.d3 Ng4+=) 12...Bd6 (12...cd4 13.Nd4 Nc5 14.Qd1 Bd7=) 13.h3 (13.0–0 cd4 14.ed4 e5=) 13...h6 (13...cd4 14.ed4 Nh5=) 14.Nbd2 (14.0–0 cd4=) 14...Re7 (14...cd4=) 15.Rc1 Kf8 16.0–0 Re8 17.Rfd1 Kg8 18.Bd3 Kf8 19.e4 de4 20.Ne4 Ne4 21.Be4 cd4 22.Nd4 Nc5 23.Qf3 Ne4 24.Qe4 Bd7 (24...f6 25.Nc6 Ra8 26.Qf3+–) 25.Qh7 (better is 25.Nc2 Bh2 26.Kh1+–) 25...Be5?? (better is 25...f6+/–) 26.Ba3+– Bd6 27.Qh8 (better is 27.Nf5! ef5 28.Rd6+–) 27...Ke7 28.Bd6 Qd6 29.Qg7 Qf4 30.Nf3 Rg8 31.Qe5?? (31.Qc3 Rbd8+–) 31...Qe5?? (better is 31...Qf3! 32.Qd6 Kf6–/+) 32.Ne5+– Be8 33.Rd4 f6 34.Nc6 Bc6 35.bc6 Rbd8 36.Rcd1 Rd4 37.Rd4 Rd8 38.c7 Rc8 39.Rh4 Rc7 40.Rh6 Rc4 41.Rh7 Kd6 42.Ra7 Ra4 43.Ra8 Kd7?? (better is 43...b5+/–) 44.a7+– Kc7 45.Re8 Ra7 (45...Ra1 46.Kh2 Ra7 47.Re7 Kb8 48.Ra7 Ka7+–) 46.Re6 (better is 46.Re7 Kb8 47.Ra7 Ka7 48.h4+–) 46...Ra1+/– 47.Kh2 f5 48.h4 Ra4 49.g3 Rd4 50.h5 b5 51.h6 (51.Re5!? b4+–) 51...Rd7 52.Re5 Kc6 53.Rf5 b4 54.Rh5 Rh7 (54...b3 55.Kg2 b2 56.Rh1+–) 55.Kg2 b3 56.Kf3 b2 57.Rh1 Kc5 58.g4?? (better is 58.Rb1+–) 58...Rh6–/+ 59.Rb1 Rb6 60.Ke4 Kc4 61.g5 Kc3 62.f4 Kc2 63.Rb2 Kb2 64.f5 Rb4 65.Ke5 Rb5 66.Ke6 Rb6 67.Kf7 White prepares f6 67...Rb7 68.Kg6 Kc3 69.f6 Kd4 70.f7 Rb6 71.Kg7 Rb7 72.Kg8 Rf7 (72...Rb6 73.f8Q Ke4 74.Qe8 Kd4+–) 73.Kf7 1–0. katchum (2570) – superiorendgame (2265), net–chess.com, 2014.

8.a5 Bd6 9.Be2 (9.Bd3 e5 10.Be2 e4 11.Nh4 Be5 12.Qc2 d4 13.ed4 cd4 14.d3 Nc5–/+) 9...0–0 10.0–0 dc4 11.Bc4 Ng4 12.h3 Nde5 13.Ne5 Ne5 14.Be2 Ng6 =.

8.Qc2 A) 8...Bd6 9.Be2 (9.Bd3 e5 10.cd5 Nd5 11.Ba3 N7f6 12.0–0 Bg4 13.Ng5 e4 14.Ne4 Bh2+=) 9...0–0 10.a5 Ne5 11.Ra4 Nfd7 12.cd5 ed5 13.Ne5 Ne5 14.d4 Nd7+=; B) 8...0–0 9.Bd3 (9.cd5 ed5 10.Be2 b6 11.0–0 Re8 12.Nc3 Bd6 13.Rfc1 Bb7 14.d4 cd4=) 9...Bd6 10.a5 dc4 11.Bc4 Rd8 12.0–0 Ng4 13.h3 Nge5 14.Ne5 Be5=.

8.Nc3 A) 8...Qd6 9.d4 (9.cd5 ed5 10.d4 0–0 11.dc5 Nc5 12.Be2 Bg4 13.0–0 Rac8 14.Nd4 Be2=) 9...0–0 10.cd5 ed5 11.dc5 Nc5 12.Be2 Bg4 13.0–0 Rac8 14.Nd4 Be2=; B) 8...0–0 9.a5 (9.Be2 dc4 10.0–0 Bd6 11.Bc4 Ng4 12.h3 Nde5 13.Ne5 Ne5 14.Be2 Ng6=) 9...Qd6 10.d4 Re8 11.cd5 ed5 12.dc5 Nc5 13.Be2 Bg4 14.h3 Bh5=.

8.cd5 A) 8...e5 9.Bc4 (9.Nc3 0–0 10.e4 Qa5 11.Be2 Nh5 12.Rc1 Nf4 13.0–0 Qb6 14.Bc4 Qg6+=) 9...Qd6 10.d3 0–0 11.Nbd2 Nd5 12.Ne4 Qe6 13.a5 Kh8 14.Qb3 Qg6+–; B) 8...ed5 9.Be2 (9.Bd3 c4 10.Bc2 0–0 11.0–0 Bd6 12.d3 Ne5 13.Be5 Be5 14.Ne5 Qe5=) 9...0–0 10.0–0 Bd6 11.a5 Re8 12.Qc2 Re6 13.d3 b6 14.ab6 Nb6=.

8.Be2 A) 8...0–0 9.cd5 (9.0–0 e5 10.cd5 e4 11.Ne1 Bd6 12.f4 Nd5 13.Qb3 N5f6 14.Nc3 Re8=) 9...Nd5 10.0–0 e5 11.d3 Rd8 12.a5 Bf6 13.Nbd2 e4 14.Bf6 ef3=; B) 8...e5 9.cd5 (9.Qc2 e4 10.Nh4 dc4 11.Nf5 Ne5 12.Ng7 Kf8 13.Nh5 Nh5 14.Bh5 Nd3+=) 9...Nd5 10.Qb3 Nb4 11.Nc3 c4 12.Qc4 Nc2 13.Kf1 Qc4 14.Bc4 Na1+=.

7.Qc2 0–0

8.Nc3 Re8 9.Ng5 (9.Be2 Nb6=) 9...Nf8 (9...Nb6 10.cd5 ed5 11.Bd3=+) 10.Be2 d4 11.Nce4 Ne4 12.Ne4 e5 13.0–0 Be6 14.f4 ef4 15.Rf4 Ng6 16.Rf2 f5 17.Ng3 Rf8 (better is 17...Bh4!?=) 18.Nf5+/– Bf5 19.Rf5 Bf6 20.Rc5 (20.Bd3 Be5+/–) 20...de3 (20...d3 21.Bd3 Bb2 22.Bg6 Ba1 23.Bh7 Kh8 24.Rh5+/–) 21.de3 (better is 21.d4!?+/–) 21...Qe7= 22.Bd4?? (22.Rd5 Qe3 23.Kh1=) 22...Rad8 (better is 22...Bd4 23.ed4 Qe3 24.Kh1 Qd4–+) 23.Rd5+/– Rde8? (23...Bd4 24.ed4 Nf4 25.Re5+=) 24.e4?? (better is 24.Bc5!? Qc7 25.Bf8 Ba1 26.Bd6+–) 24...Bd4 (24...Qe4!? 25.Qe4 Re4 26.Bf6 Re2+=) 25.Rd4+/– Qc5 26.Rad1 Rd8 27.Qd2 b6 (27...Nf4!? 28.Bg4 h5+/–) 28.Kh1+– Rd4 29.Qd4 Qd4 30.Rd4 Nf4 (30...Rf2 31.Rd8 Kf7 32.Rd2+–) 31.Bf3 h6 (31...Ng6 32.Kg1+–) 32.Rd2 (32.e5 Ne6 33.Rd6 Nc5+–) 32...Nh5 (32...Ng6 33.Rd7 Ne5 34.Ra7 Nc4 35.a4+–) 33.Kg1 Nf6 (33...Nf4+–) 34.e5 Nh7 35.Rf2 (35…g6 36.Bd5 Kg7 37.h4+–; better is 35.Rd7 Rf5 36.Bd5 Kf8+–) 1–0. Otte,Marco – Gruenenschild,H, Gent, 2000.

8.Be2 (--> 7.Be2 0–0 8.Qc2).

7.Nc3 Nb6

8.d3 0–0 9.Be2 a6 10.0–0 d4 11.ed4 cd4 12.Ne4 ab5 13.cb5 =.

8.d3 0–0 9.Be2 a6 10.0–0 Qd6 11.a4 Nbd7 12.d4 dc4 (12...Rd8 13.cd5 Nd5 14.a5=) 13.Bc4 b6 (13...Nb6 14.Bd3+=) 14.Qc2 (14.Qe2+=) 14...a5 (14...Bb7!? 15.ba6 Bf3 16.gf3 cd4=) 15.Ne4+/– Qc7 (15...Ne4 16.Qe4 Rb8 17.dc5 bc5 18.Rfd1+/–) 16.dc5 Nc5 (16...bc5 17.Nfg5 Ne4 18.Qe4 Bg5 19.Bd3–+ (19.Qa8? Bb7 20.Qf8 Kf8–+)) 17.Nc5 (17.Be5 Qd8 18.Rad1 Nfd7+/–) 17...Qc5 18.Bd4 Qc7 (18...Qh5 19.Bb6 Bb7 20.Be2+/–) 19.Bd3 (19.Rac1 h6+/–) 19...Qc2 20.Bc2 Nd7 21.Be4 Ra7 22.Rac1 (22.Bc6 Nc5+=) 22...Bc5 (22...f6 23.Rc2+=) 23.Bc6 Bd4 24.Bd7 (24.ed4 Rd8+/–) 24...Rd7 (24...Bc5 25.Bc6+=) 25.Nd4 Bb7 (25...e5 26.Nf3 f6 27.Rc6+=) 26.Nc6 f6 27.Rfd1 Bc6 (27...Rc7 28.Rd4+=) 28.bc6 Rd1 29.Rd1 Rc8 30.Rd6 Rc7 31.Re6 (31.f4 Kf7 32.e4 e5+=) ½–½. Maartensson,P – Gaard,Karl Gustav, corr SSKK 3–76, 1978.

8.d3 0–0 9.Be2 a6 10.a4 ab5 (10...d4 11.ed4 cd4 12.Ne4 ab5 13.ab5 (worse is 13.Bd4 ba4 14.0–0 Ne4 15.de4 a3+=) 13...Ra1 14.Ba1 Bb4 15.Ned2+=) 11.ab5 Ra1 12.Qa1 d4 (12...Qd6!?=) 13.ed4+= cd4 14.Na2 Qd6 (14...Bc5 15.Bd4 Bd4 16.Qd4 Qd4 17.Nd4+/–) 15.Bd4 Bd7? (15...Nbd7 16.0–0+/–) 16.Qb2?? (16.c5 Qf4 17.cb6 Bb5 18.Qc1 Qc1 19.Nc1 Bb4 20.Nd2+–) 16...Ra8 (16...Na4!? 17.Qc2 Ra8+/–) 17.c5+– Qd5? (better is 17...Na4 18.cd6 Nb2+–) 18.Nc3 (18.cb6 Ra2 19.Qb1 Bb5+=) 18...Na4 (18...Qf5 19.cb6 Ba3 20.Qd2+–) 19.Nd5 Nb2 20.Ne7 (20.Bb2?! Nd5 21.d4 Ra2=) 20...Kf8 21.Bb2 Bb5 (21...Ke7 22.b6+–) 22.Nf5 (22.Nd4!? Bd7 23.c6 Ke7 24.cd7 Ra2+–) 22...ef5 23.Bf6 gf6 24.0–0 (24.0–0 Ra3 25.Rd1+–; 24.Kf1 Ra2+–) 1–0. Palmi,Herbert – Bergmann,Ralf, Nord Bayern–ch, 2001.

8.d3 0–0 9.Be2 Re8 10.0–0 =.

7.d4 0–0

8.Nc3 Qa5 9.Qa4 A) 9...Qb6 10.cd5 (10.Rd1) 10...ed5 11.dc5 Nc5 12.Qd4 Be6 13.Be2 Rac8=; B) 9...Qc7 10.cd5 Nb6 11.Qd1 ed5 12.dc5 Qc5 13.Qd4 Be6 =.

8.Nc3 b6 9.dc5 (9.cd5 ed5 (9...Nd5) 10.dc5 Nc5 11.Be2 Re8 12.Nd4 a6 13.Rc1 ab5=) 9...Nc5 10.cd5 ed5 Opening the c–file gets Black a lot of play 11.Nd4 (11.Be2 a6 12.0–0 ab5 13.Nb5 Bg4=) 11...Bb7 (11...Bg4 12.Nc6 Bd1 13.Nd8 Bg4=) 12.Be2 (12.Rc1 Ne6 13.Be2 Nd4=) 12...Rc8 (12...Bd6 13.0–0 Rc8=) 13.0–0 Bd6 14.Bf3 Nce4 15.Qd3 (15.Rc1!?+=) 15...Nc3 16.Bc3 Bh2 17.Kh1 (17.Kh2 Qc7) 17...Bb8 18.g3 Ne4 19.Be1 (19.Bb2 Qg5–/+) 19...Qe7 20.Kg2 Qd7 21.Rh1 f5 22.Bb4 Rfe8 23.Rh5 (23.Rac1 Be5+=) 23...Rc4 24.a3 (24.Rb1 g6 25.Rhh1 Be5–/+) 24...g6 (24...Be5 25.Rb1 Bd4 26.ed4–+) 25.Rh4 h5 26.Bh5? (better is 26.Rd1+=) 26...Qc7?? (26...gh5!? 27.Rh5 f4 28.Rah1–+) 27.Nf5?? gf5?? 28.Be8= Nf2 29.Bf7 Kg7?? 30.Rh7! Kf6 31.Rh6 Kg5 32.Rg6 (32.Rg6 Kh5 33.Qf5#; 32.Kf2?! Qg3 33.Ke2 Qg2 34.Kd1 Qf3 35.Qe2 Qe2 36.Ke2 Kh6=) 1–0. Bailey,G – Brady,L, 09.03 R04 USA East Lansing, MI, 1995. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 e6 4.b5 c5 5.e3 Nbd7 6.c4 Be7 7.d4 0–0)

8.Nc3 cd4 9.Qd4 Qa5 10.cd5 (10.Rd1 Bb4 11.Rd2 Nb6 12.c5 Nbd7 13.c6 bc6+=) 10...Nd5 11.e4 Nb4 12.0–0–0 Bf6 13.e5 Be7 =.

8.Nbd2 Qa5 A) 9.Be2 A1) 9...a6 10.ba6 (10.a4 dc4 11.0–0 c3 12.Nc4 cb2 13.Na5 ba1R 14.Qa1) 10...b6 11.Qc2 cd4 12.Nd4 Ba6 13.Nc6 Qc5 14.Ne7; A2) 9...dc4 10.0–0 (10.Bc4 a6 11.a4 cd4 12.ed4 Nb6 13.0–0 Nc4 14.Nc4; 10.Qc2 a6 11.ba6 Ra6 12.0–0 Nd5 13.Qc4 Rc6 14.Nb3) 10...c3 11.Nc4 Qb5 12.Bc3 Ne4 13.a4 Qc6 14.Qc2; A3) 9...Nb6 10.0–0 Na4 11.Qc2 Nb2 12.Qb2 cd4 13.ed4 Ne4 14.Bd3; B) 9.Qc2 B1) 9...Rd8 10.Bc3 (10.Be2 cd4 11.Bd4 e5 12.Bc3 Qc7 13.0–0 e4 14.Nd4) 10...Qc7 11.Bd3 a6 12.ba6 b6 13.a7 Ra7 14.0–0; B2) 9...a6 10.ba6 dc4 11.a4 Nb6 12.dc5 Bc5 13.Bf6 gf6 14.Bc4; B3) 9...cd4 10.Bd4 Nb6 11.c5 Na4 12.c6 Ne4 13.Bd3 Nac5 14.Be4.

8.Nbd2 a6 9.a4 A) 9...Bd6 10.Bd3 (10.dc5 Nc5 11.Be2 b6 12.0–0 Bb7 13.cd5 Nd5 14.Nc4; 10.cd5 ed5 11.Be2 c4 12.ba6 b6 13.0–0 Ba6 14.Bc3; 10.Be2 cd4 11.ed4 dc4 12.Bc4 Nb6 13.0–0 ab5 14.ab5; 10.ba6 ba6 11.cd5 ed5 12.Be2 c4 13.0–0 Rb8 14.Qc2) 10...cd4 11.ed4 dc4 12.Bc4 ab5 13.Bb5 Nb6 14.0–0; B) 9...b6 10.cd5 (10.Bd3 cd4 11.ed4 dc4 12.Bc4 ab5 13.Bb5 Bb7 14.Rc1; 10.Qc2 Qc7 11.cd5 ed5 12.Be2 ab5 13.Bb5 Bb7 14.0–0; 10.Ne5 cd4 11.Nc6 Qe8 12.Bd4 Bb7 13.a5 dc4 14.Bc4; 10.Be2 ab5 11.ab5 Ra1 12.Qa1 Bb7 13.dc5 Bc5 14.cd5) 10...ed5 11.Be2 c4 12.0–0 ab5 13.ab5 Ra1 14.Qa1; C) 9...Nb6 10.Qc2 (10.ba6 ba6 11.cd5 Nbd5 12.Ne5 Qc7 13.Bd3 Rb8 14.Rb1; 10.cd5 Nbd5 11.ba6 ba6 12.Bd3 Rb8 13.Rb1 Nb4 14.Be2; 10.dc5 Bc5 11.Qc2 dc4 12.Bc4 Nc4 13.Qc4 b6 14.0–0; 10.Ne5 cd4 11.Bd4 Nbd7 12.Nef3 Bd6 13.cd5 Nd5 14.Bc4; 10.h4 Qc7 11.dc5 Nc4 12.Nc4 dc4 13.Bc4 Rd8 14.Qc2) 10...dc4 11.ba6 cd4 12.Bd4 Ra6 13.Nc4 Bd7 14.Nb6; D) 9...Qc7 10.cd5 (10.Bd3 cd4 11.ed4 dc4 12.Nc4 Bb4 13.Kf1 Nd5 14.ba6; 10.Be2 cd4 11.Nd4 Nc5 12.0–0 Bd7 13.Qc2 h6 14.Rfc1) 10...Nd5 11.e4 Nb4 12.Rc1 Rd8 13.ba6 ba6 14.Be2.

8.Nbd2 a6 9.ba6 A) 9...ba6 10.cd5 (10.Be2 Rb8 11.Rb1 Bb7 12.0–0 cd4 13.Bd4 Qc7 14.Qc2; 10.Bd3 cd4 11.ed4 Rb8 12.Rb1 dc4 13.Bc4 Qa5 14.0–0; 10.Rb1 Qc7 11.cd5 ed5 12.Be2 Rb8 13.0–0 c4 14.Bc3) 10...ed5 11.Be2 Rb8 12.Qc2 c4 13.0–0 Bd6 14.Rab1; B) 9...Qa5 10.Qc2 (10.Be2 b6 11.Qc2 cd4 12.Nd4 Ba6 13.Nc6 Qc5 14.Ne7; 10.Rc1 ba6 11.Bc3 Qc7 12.cd5 Nd5 13.Bd3 Bb7 14.0–0; 10.cd5 ed5 11.dc5 Nc5 12.Be2 Ra6 13.0–0 Ra8 14.Nb3) 10...dc4 11.a4 Nb6 12.dc5 Bc5 13.Bf6 gf6 14.Bc4; C) 9...cd4 10.Bd4 (10.Nd4 Ra6 11.cd5 Rb6 12.Bc3 Nd5 13.Ba5 e5 14.Nc2) 10...ba6 11.Be2 Nc5 12.Rc1 Rb8 13.0–0 Bb7 14.Qc2; D) 9...Qc7 10.cd5 (10.Rc1 ba6 11.cd5 Rb8 12.Nb3 Nd5 13.Be2 a5 14.Ba3) 10...ed5 11.dc5 ba6 12.Rc1 Nc5 13.Bf6 gf6 14.Nb3; E) 9...b6 10.cd5 (10.Bd3 cd4 11.ed4 dc4 12.Nc4 Bb4 13.Kf1 Ba6 14.a3; 10.Rc1 Ba6 11.a4 cd4 12.Nd4 Nc5 13.Nc6 Qd6 14.Ne7; 10.Qb3 Ba6 11.Be2 dc4 12.Nc4 b5 13.Ncd2 c4 14.Qc2) 10...ed5 11.Ne5 Ba6 12.Ba6 Ra6 13.Nc6 Qe8 14.Ne7.

8.Nbd2 Qb6 9.Qb3 A) 9...Qa5 10.Bc3 (10.Qc2 cd4 11.Bd4 Nb6 12.c5 Na4 13.Bd3 Ne4 14.c6) 10...Qd8 11.Be2 cd4 12.ed4 dc4 13.Nc4 Ne4 14.0–0; B) 9...a5 10.Be2 a4 11.Qc2 a3 12.Bc3 cd4 13.Bd4 Qc7 14.0–0; C) 9...a6 10.ba6 (10.cd5 ed5 11.ba6 c4 12.Qb6 Nb6 13.a4 Ra6 14.a5) 10...Qc7 11.Bd3 cd4 12.ed4 ba6 13.c5 Rb8 14.Qc2; D) 9...h6 10.Rc1 (10.Bd3 a6 11.ba6 Qc7 12.0–0 ba6 13.cd5 ed5 14.Qa3; 10.Be2 cd4 11.ed4 a6 12.c5 Qc7 13.b6 Qc6 14.0–0) 10...Re8 11.Bd3 a6 12.ba6 Ra6 13.cd5 Nd5 14.Ba6; E) 9...Rb8 10.Bd3 cd4 11.ed4 a6 12.a4 Qa5 13.0–0 Bb4 14.Qc2; F) 9...Ne4 10.Bd3 cd4 11.ed4 Ndf6 12.0–0 Qa5 13.Qc2 Nd2 14.Nd2; G) 9...cd4 10.Bd4 (10.ed4 a5 11.ba6 ba6 12.Qb6 Nb6 13.c5 Na4 14.Ba3) 10...Qa5 11.cd5 Nd5 12.Bd3 Nc5 13.Bc5 Bc5 14.0–0.

8.Nbd2 Qb6 9.Qc2 cd4 (9...Bd6 10.Bd3 cd4 11.Bd4 Qc7 12.cd5 Qc2 13.Bc2 ed5 14.0–0) 10.ed4 (10.Bd4 Qc7 11.Qb2 Nc5 12.Be2 a6 13.cd5 ab5 14.de6) 10...a6 11.c5 Qa5 12.ba6 Ra6 13.Bd3 h6 14.0–0.

8.Nbd2 Qb6 9.Bd3 Qc7 (9...cd4 10.ed4 (10.Bd4 Qd6 11.cd5 e5 12.Bc3 Nd5 13.Ne4 Qa3 14.Qc1) 10...dc4 11.Nc4 Qb5 12.0–0 g6 13.a4 Qh5 14.Ba3) 10.0–0 Rb8 (10...b6 11.Qc2= (11.Qe2 Bb7 12.h3 cd4 13.ed4 Qf4 14.Rac1) 11...g6 12.dc5 Nc5 13.cd5 Nd5 14.Ne4) 11.Qc2 (11.Rc1 b6 12.Qc2 Bb7 13.dc5 bc5 14.h3) 11...b6 (11...cd4 12.ed4 b6 13.Rac1 Bb7 14.Qa4) 12.cd5 ed5 13.Ne5 (13.dc5 bc5 14.e4) 13...Bd6 (13...c4 14.Rac1) 14.Ndf3 (14.Nc6 c4 15.Nb8 Nb8=) 14...cd4 (14...c4!? 15.Rfc1 a6=) 15.Qc7+= (15.Bd4?? Ne5 16.Ne5 Be5 17.Qc7 Bc7–+; 15.ed4?! Qc2 16.Bc2 Rb7+=) 15...Bc7 16.Bd4 Be5 17.Ne5 Ne5 18.Be5 Rb7 19.Bf6 gf6 20.Rac1 Be6 21.a4 Rd7 22.Rfd1 Rfd8 23.f4 f5 24.g4 fg4? (better is 24...d4 25.Bf5 Bf5 26.gf5 de3 27.Rd7 Rd7=) 25.f5+– d4 (better is 25...Kg7+–) 26.fe6 fe6 27.Bc4 Kf7 28.e4 (28.ed4 Rd4 29.Bb3 R4d7+–) 28...Kf6 (28...d3 29.Kf2 Ke7+–) 29.Bd3 (better is 29.e5!? Kf5 30.Rf1 Ke5 31.Rfe1 Kf6 32.Re6 Kg7 33.Bd3+–) 29...Ke5 30.Rf1 h5 31.Kg2 h4 32.Rc2 Rg7 33.Rcf2 (33.a5 g3+=) 33...g3 34.Rf7 gh2?? (better is 34...h3 35.Kg1 gh2 36.Kh2 Rg2 37.Kh1 Rd2=) 35.Rg7+– 1–0. Nebe,Lutz (1620) – Baumann,Bettina, Koblenz–ch, 1996.

8.Nbd2 Qb6 9.Be2 A) 9...dc4 10.Bc4 (10.Nc4 Qb5 11.0–0 Nd5 12.Qc2 g6 13.Rfd1 Rd8 14.h4; 10.0–0 Qb5 11.Nc4 Nd5 12.Qc2 f6 13.Rfd1 Qc6 14.a4) 10...a6 11.a4 ab5 12.Bb5 Qc7 13.0–0 b6 14.dc5; B) 9...a6 10.a4 Qc7 11.0–0 b6 12.cd5 Nd5 13.Nc4 Bb7 14.Qc2.

8.Nbd2 cd4 9.Bd4 A) 9...Nc5 10.Be2 (10.Rc1 Nfe4 11.Be2 a6 12.ba6 Ra6 13.cd5 Ra2 14.Bc4; 10.cd5 Qd5 11.Bc4 Qf5 12.0–0 Bd6 13.Nb3 Nb3 14.ab3; 10.Qc2 Bd7 11.Be2 a6 12.Bc5 Bc5 13.ba6 ba6 14.cd5) 10...Bd7 11.0–0 a6 12.Rc1 Rc8 13.a4 dc4 14.Bc4; B) 9...Qc7 10.cd5 (10.Rc1 Ba3 11.Rc2 Qd6 12.cd5 Nd5 13.Ne4 Qb4 14.Nc3) 10...Nd5 11.Bc4 N7b6 12.Be2 f6 13.Rc1 Qd8 14.Qb3; C) 9...Bd6 10.cd5 (10.Be2 e5 11.Bb2 e4 12.Nd4 Nc5 13.0–0 Qc7 14.h3) 10...e5 11.Bb2 Nd5 12.Bc4 N7b6 13.0–0 Be6 14.Bb3.

8.cd5 Nd5 9.Nc3 Nc3 10.Bc3 b6 11.Bd3 Bb7 12.0–0 Rc8 13.Qe2 cd4 14.Bd4 Bf6 15.Rfd1 (15.Rad1 Bf3 16.Qf3 Bd4 17.ed4 Nf6=) 15...Qe7 16.e4 Bd4 17.Nd4 Rfd8 18.Qe3 Qf6 19.Be2 g6 20.Rd2 e5 21.Nb3 Nc5 22.Rd8 Qd8 23.Nc5 Rc5 24.Rd1 Qc7 25.Bf1 Kg7 26.Bd3 Bc8 27.Qd2 Bg4 28.Re1 Rc3 29.Ra1 Qc5 30.Bf1 Rc2 31.Qe1 Be6 32.Bd3 Ra2 33.Ra2 Ba2 34.Qa1 Be6 35.h3 Bd7 36.Qb2 g5 37.Kh2 Kg6 38.Qe2 Be6 39.Qf3 h5 40.Be2 g4 41.hg4 hg4 42.Qg3 Kg5 43.Bg4 Bg4 44.f3 Qb5 45.Qg4 Kf6 46.Qf5 Ke7 47.f4 a5 48.fe5 Qc6 49.Qg5 Kd7 50.Qh5 Qc4 51.Qg4?? Qe6 52.Qd1 Kc6 53.Qc1?? Kb7 54.Qa1 Qb3 55.Qd4 a4 56.Qd7 Ka6 57.Qc8 Ka5 58.Qa8 Kb5 59.Qe8 Kc5 60.Qd7 a3 61.Qd6 Kb5 62.Qd7 Ka6 63.Qc8 Ka5 64.Qa8 Kb5 65.Qe8 Kc5 66.Qe7 Kd4 67.Qd6 Kc3 68.Qf6–/+ Qe6 69.Qf3 Kb4 70.Qf2 Qe5 71.Kh3 Qe6 72.Kh2 a2 73.Qd4 Kb5 74.Qb2 Kc6 75.Qc3 Kd7 76.Qb2 Qc4 77.Qf6 b5 78.Qf5 0–1. marekt – smartrocks, ChessWorld.net, 2003.

8.Be2 a6 9.a4 dc4 10.Bc4 Nb6 11.Qb3 Bd7 (11...Nc4 12.Qc4 cd4 13.Qd4 ab5 14.ab5 Ra1 15.Ba1 Qa5 16.Nbd2–/+) 12.Nbd2 Qc7 (12...Nc4 13.Nc4 cd4 14.Bd4 ab5 15.ab5 Ra1 16.Ba1 Ne4=) 13.Rc1 (13.dc5 Nc4 (13...Qc5? 14.Ba3 Nc4 15.Bc5 Nd2 16.Nd2 Bc5 17.0–0+–; worse is 13...Bc5 14.Bf6 gf6 15.ba6+=) 14.Qc4 ab5 (worse is 14...Bc5 15.Nb3 Bd6 16.Qc7 Bc7 17.Bf6 gf6 18.Nc5+=) 15.ab5 Ra1 (15...Bc5?! 16.Bf6 gf6 17.0–0+=) 16.Ba1 Qc5 17.Qc5 Bc5 18.Bf6 gf6+=) 13...Rac8 (13...Na4 14.ba6 ba6–/+ (worse is 14...Ra6 15.Ba6 ba6 16.Ba3=)) 14.0–0 (14.ba6 A) worse is 14...Nc4 15.Rc4 (worse is 15.Nc4 ba6 16.dc5 Qc5=) 15...ba6 16.dc5+=; B) 14...Ba4 15.Qa2 Nc4 16.Qc4 b5–/+) 14…Nfd5 0–1. typ48 – tadziczek, kurnik, 2012.

7.cd5 ed5

8.a4 b6 9.Be2 Bb7 10.0–0 0–0 11.Ne5 Ne5 12.Be5 d4 13.ed4 cd4 14.Bf3 Bf3 15.Qf3 Bc5 16.d3 Qd5 17.Qg3 (17.Bf6!? Qf3 18.gf3 gf6 19.Nd2=) 17...Nh5+= 18.Qg5 Rfe8 (18...Rae8 19.Qh5 Re5 20.Qd1+=) 19.Qh5 (19.f4!? g6 20.Qh4+=) 19...Re5+= 20.Qd1 Rae8 21.Nd2 Re2 (21...R5e6 22.Rc1+=) 22.Ne4= R2e4 (better is 22...Rb2!?=) 23.de4+/– Re4 24.Qd3 f5 25.f3 (better is 25.Rfc1!?+/–) 25...Re3= 26.Qd2 d3 27.Rac1?? (better is 27.Kh1=) 27...Re2–+ (27...Re2 28.Kh1 Rd2–+) 0–1. Valpa – Korto, playchess.de, 2005.

8.Be2 0–0 9.0–0 Bd6 10.h3 b6 11.Nc3 Ne5 (better is 11...a6!?+=) 12.Nd5+= Nd5 13.Ne5 Be5 14.Be5 Re8 15.Bb2 Be6 16.Bf3 Rc8 17.d4 cd4 (better is 17...c4!?+=) 18.Qd4+– Qg5 19.h4 Qh6? (better is 19...Qf6+–) 20.Bd5 1–0. emeryt85 – pavles, kurnik, 2011.

8.Be2 0–0 9.0–0 Re8 10.d3 Bd6 11.Nbd2 b6 12.Re1 Bb7 13.Bf1 Qc7 14.Qc2 Ng4 15.g3 Nge5 16.Ne5 Ne5 17.d4 cd4 (17...Ng6!?=) 18.Qc7+= Bc7 19.Bd4 Bd6 20.Be2 Rac8 21.f4 (21.Rec1 f6=) 21...Bb4 (21...Nc4 22.Nf1+=) 22.Be5 (22.fe5 Bd2 23.Red1 Bb4=) 22...Bd2+= 23.Bg4 Rc4 24.Re2 Bb4 25.Bd4 Bc8 26.Bf3 Bf5 27.a3 Bc3 28.Bc3 (28.Bd5? Rd4 29.Bc6 Re7–+) ½–½. Teumer,Joerg – Dobierzin,Olaf, DDR–Cup11 V61, 1987.

8.Nc3 0–0

9.d4 b6 10.dc5 bc5 11.Nd5 Bb7 12.Ne7 Qe7 13.Be2 Rfd8 14.Qb3 Nb6 15.a4 c4 16.Bc4 Nc4 17.Qc4 Bd5? (better is 17...Be4!? 18.0–0 Bd3+/–) 18.Qh4+– Bf3 19.Bf6 Qf6 20.Qf6 gf6 21.gf3 Kf8 22.Ke2 Rd5 23.Rad1 Rc5 24.Rd4 Rc2 25.Rd2 Rac8 26.Rhd1 R8c4 27.a5 Rd2 28.Rd2 (28.Kd2?! Rb4 29.b6 ab6 30.ab6 Rb6+/–) 28...Ra4 29.Rd8 (29.a6 Ke7+–) 29...Kg7? (29...Ke7 30.Rd5 Ra5 31.e4+–) 30.Ra8 (better is 30.a6+–) 30...Ra5 31.b6 ab6= 32.Ra5 ba5 33.Kd3? Kg6 34.Kc4 Kh5 35.Kb5 Kh4 36.Ka5 Kh3 37.Kb5 Kh2 38.Kc6 Kg2 39.Kd6 Kf2 40.f4 Ke3 41.f5 Ke4 42.Ke7 Kf5 43.Kf7 h5 (43...h5 44.Ke8 h4 45.Ke7 Ke5 46.Kd7 f5 47.Kc6 f4 48.Kb5 f3 49.Kc4 f2 50.Kd3 f1Q 51.Kc3 h3 52.Kd2 h2 53.Kc2 Qc4 54.Kd2 h1Q 55.Ke3 Qe1 56.Kf3 Qce4 mate) 0–1. typ48 – vasileneagu, kurnik, 2012.

9.Be2 Qa5 A) 10.Qc2 Re8 (10...Bd6 11.0–0 Re8 12.Rfc1 Ne5 13.Ne5 Re5 14.f4 Re8 15.Na4 Nd7 16.Bc3=) 11.0–0 Bd6 12.Rfc1 Ne5 13.Ne5 Re5 14.f4 Re8 15.Na4 Nd7 16.Bc3=; B) 10.0–0 Re8 (10...Bd6 11.Qc2 Re8 12.Rfc1 Ne5 13.Ne5 Re5 14.f4 Re8 15.Na4 Nd7 16.Bc3=) 11.Qc2 Bd6 12.Rfc1 Ne5 13.Ne5 Re5 14.f4 Re8 15.Na4 Nd7 16.Bc3=.

9.Be2 a6 A) 10.0–0 Re8 (10...ab5 11.Bb5 Qb6 12.a4 Re8 13.Qc2 Ra5 14.Ne2 Qd6 15.Bc3 Ra7 16.Ng3+=) 11.Rb1 Bd6 12.Qc2 Qc7 13.Rfc1 d4 14.ed4 cd4 15.Nd4 Bh2 16.Kf1=; B) 10.Rb1 ab5 (10...b6 11.0–0 Re8 12.a4 Nf8 13.Qc2 Ne6 14.ba6 Ba6 15.Nb5 Nc7 16.Nc7=) 11.Bb5 c4 12.d3 Nc5 13.dc4 Bf5 14.0–0 dc4 15.Bc4 Bb1 16.Qb1=.

9.Be2 Nb6 10.Qc2 Re8 (10...Be6 11.d4 c4 12.0–0 Rc8 13.a4 a5 14.ba6 ba6 15.Rfb1 Re8 16.a5=) 11.0–0 Bd6 12.Rfc1 Bg4 13.h3 Bh5 14.Rab1 Rc8 15.Na4 Nbd7 16.d3 +=.

9.Be2 Nb6 10.d4 Nc4 (10...c4 11.0–0 Bf5 12.a4 a5 13.ba6 Ra6 14.Ne5 Bb4 15.Na2 Bd6 16.Nc3+=) 11.Bc4 dc4 12.0–0 (12.d5 Bg4 13.h3 Bh5 14.e4 Qa5 15.Qe2 a6 16.a4=) 12...Bf5 (12...Bg4 13.d5 Bd6 14.Qe2 Nd7 15.Ne4 Be5 16.Rfd1=) 13.Ne5 (13.Qa4 Bd3 14.Rfd1 cd4 15.Nd4 Bc5 16.Nf3=) 13...cd4 14.ed4 Qc7 (14...Be6 15.Qf3 Qd4 16.Qb7+=) 15.Re1 (15.Qf3 Be6 16.Rfe1=) 15...Rfd8 (15...Be6 16.Qf3=) 16.a4 (16.Qf3=) 16...Nd5 (16...Be6 17.Qe2 Bb4 18.Qe3+=) 17.Qe2 (17.Nd5 Rd5 18.Nc4 Bg5+/–) 17...Rac8 (better is 17...Bb4!? 18.Rac1 Nb6+=) 18.Nd5+/– Rd5 19.Nc4 Bf6?? (better is 19...Be6 20.Ne3 Rdd8+/–) 20.Qe8!! 1–0. rayfranke (2470) – marcosaa (2555), net–chess.com, 2014.

9.Be2 Bd6 A) 10.Qc2 Qe7 (10...Re8 11.0–0 Ne5 12.Ne5 Re5 13.f4 Re8 14.Bf3 Be7 15.a4 a6 16.ba6=) 11.0–0 Re8 12.Nh4 Nb6 13.Nf5 Bf5 14.Qf5 d4 15.Nd1 Na4 16.Rc1+=; B) 10.0–0 Qe7 (10...Re8 11.a4 Qa5 12.Qc2 Ne5 13.d4 cd4 14.Nd4 Be6 15.Rac1 Rac8 16.Qb3=) 11.d3 Re8 12.a4 Qe6 13.a5 a6 14.b6 Ne5 15.d4 Nf3 16.Bf3=.

9.Be2 Re8 A) 10.0–0 Bd6 (10...Nb6 11.Qc2 Bd6 12.Rfc1 Bg4 13.h3 Bh5 14.d3 Rc8 15.Qd2 Bf3 16.Bf3=) 11.a4 Qa5 12.Qc2 a6 13.ba6 ba6 14.d4 c4 15.Rfc1 Rb8 16.Ba3=; B) 10.Qc2 Bd6 (10...Qb6 11.0–0 Bd6 12.Rac1 Qc7 13.d3 Qb6 14.Qb3 a6 15.Nd5 Qb5 16.Nf6+=) 11.0–0 Ne5 12.Ne5 Re5 13.f4 Re8 14.Bf3 Be7 15.a4 a6 16.Rab1=.

7.Be2 0–0

(--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 Nbd7).

8.0–0 b6 9.a4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7).

8.0–0 b6 9.d4 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.d4 Nbd7).

8.0–0 Qc7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7 6.c4 0–0 7.Be2 Nbd7 8.0–0 Qc7).

8.d3 b6 9.Nbd2 Bb7 10.0–0 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 Be7 6.Be2 0–0 7.0–0 d5 8.d3 c5 9.Nbd2 Nbd7 10.c4).

7.Be2 Nb6

8.Na3 0–0 =.

8.d3 dc4 9.dc4 Qd1 10.Kd1 0–0 11.Ne5 (11.Nc3 Ne8+=) 11...Rd8 12.Nd2 (12.Kc2!?+=) 12...Ne4–/+ 13.Nef3? (better is 13.Nd3 Nd2 14.Kd2 Nc4 15.Kc2–/+) 13...Nf2–+ 14.Kc2 Nh1 15.Rh1 Na4 (15...a6 16.ba6 Ra6 17.a3–+) 16.Ba1 f6 17.Rf1 e5 18.h3 (18.Kb3 Nb6–+) 18...Bf5 19.Kb3 Nb6 20.a4 (20.e4 Be6–+) 20...Bg6 (better is 20...Bd3 21.Bd3 Rd3 22.Bc3 Re3–+) 21.Nh4 (21.Bc3–+) 21...Rd2 22.Bf3 (22.Ng6 hg6 23.Re1 e4–+) 22...Rb8 (22...Bc2 23.Kc3 Rad8 24.Bd5 R8d5 25.cd5–+) 23.Bc3 (23.Ng6 hg6 24.a5 Nd7–+) 23...Rd3 (better is 23...Bc2 24.Ka2 Rd3 25.Nf5–+) 24.a5 Nd7 (24...Na4! 25.Ng6 Rc3 26.Ka4 hg6 27.Bd5 Kh7 28.e4–+) 25.Bd5 Bf7 26.Be4 (26.Nf5 Bd8 27.Be4 Rc3 28.Kc3 Ba5 29.Kb3 a6–+) 26...Re3 27.Bf5 Rd8 28.Nf3 Nf8 29.g4 Ne6 30.Bb1 Nd4 31.Nd4 ed4 32.Kb2 dc3 33.Kc2 Rd2 34.Kc1 Bc4 35.Rg1 Ree2 36.Bf5 Bd6 37.g5 fg5 38.b6 ab6 39.ab6 Bf4 40.Kb1 Rb2 41.Ka1 Ra2 42.Kb1 c2 43.Bc2 Rec2 44.Rd1 Rcb2 0–1. brozal – blade73, playok.com, 2012.

8.cd5 ed5 9.0–0 0–0 10.a4 Bf5 11.d3 Rc8 12.Nh4 Be6 13.f4 (better is 13.a5!? Nbd7 14.Nf3=) 13...d4–/+ 14.e4 White prepares f5 14...Ne4! 15.de4 Bh4 16.g3 (16.f5 Bc4 17.a5 Qg5–/+) 16...Be7 17.Nd2 c4 18.f5 c3 19.fe6 cb2 (19...cd2 20.ef7 Rf7 21.Rf7 Kf7 22.Qb3 Kg6 23.Qe6 Bf6 24.e5+–) 20.ef7 Rf7 21.Rb1 (21.Qb3 ba1Q 22.Qf7 (22.Ra1?? Rc3 23.Qe6 d3–+) 22...Kh8 23.Ra1–+) 21...Rf1 (better is 21...d3!? 22.Bg4 Qd4 23.Kh1 Rf1 24.Qf1 Rf8–+) 22.Bf1–/+ Ba3?? (better is 22...d3 23.a5 Rc2–/+) 23.Qb3+– Nd5 24.Qa3 (24.ed5?! Rc3 25.Qa2 Kh8+–; 24.Qd5?! Qd5 25.ed5 Rc1+/–) 24...Ne3 25.Qb2 Rc2 26.Qb3 Kh8 27.Nf3?? (27.Qb4 h6+–) 27...Qf8?? (27...Qf6 28.Qc2 Nc2 29.Kf2–/+) 28.Qc2?? (better is 28.Qe6 g6 29.Qe5 Kg8 30.Qf4+–) 28...Nc2–+ 29.Nh4 (29.Ne5!?–+) 29...Ne3 30.Bd3 g6 31.Rc1 Qa3 32.Rc8 Kg7 33.Bc4 Nc4 34.Rc4 Qa1 35.Kg2 Qa2 (35...Qa2 36.Kg1 Qc4–+) 0–1. avinoam – isakas (1720), playok.com, 2013.

7.Be2 dc4

8.Bc4 b6 9.0–0 0–0 10.d4 Bb7 11.Nbd2 Rc8 12.Rc1 cd4 13.ed4 Rc7 14.Qe2 Nd5 15.Bb3 Rc1 16.Rc1 Qb8 17.Nc4 Qa8 18.Nce5 Ne5 19.de5 Bc5 (19...Nf4 20.Qe3 Bf3 21.Qf4 Bg2 22.Rc7=) 20.Rc4 Ne7 21.Ng5 (21.Bc2 Bd5 22.Bh7 Kh7 23.Ng5 Kg6+–) 21...h6 (21...Bg2!? 22.Bc2 Ng6+=) 22.Ne4+= Bd5 23.Nf6?? (23.Ra4 Bb3 24.ab3 Rd8=) 23...Kh8?? (23...gf6 24.Rg4 Ng6 25.ef6 Bb3 26.Qd3–+) 24.Qd3?? (better is 24.Nd5 Qd5 25.Rc1+/–) 24...gf6–+ 25.Rh4 Nf5 26.Qh3 Kh7 27.Bc1?? Nh4–+ 28.Qh4 Rh8?? 29.Bh6?? Qg8?? 30.Bf8 Kg6 31.Qf6 Kh5 32.Bd1 (32.Bd1 Qg4 33.Qh8 Kg6 34.Bc2 Qe4 35.Qh6 Kf5 36.Qh5 Kf4 37.Bh6) 1–0. Fournier,Frederic – Dazin,Claude (2055), FRA Ch (Team) N4 Senlis–Amiens, 1999.

8.Bc4 b6 9.0–0 Bb7 10.d4 0–0 11.Nbd2 Ne4 12.Qb3 Ndf6 13.Rfd1 Qc7 14.Ne4 Ne4 15.Bd3 Rac8 16.Rac1 Qb8 17.Ne5 Bd5 18.Bc4 cd4 19.Bd5 Qe5 20.Be4 Qe4 21.Bd4 h6 22.f3 Qh4 23.Be5 Rfd8 24.Rd8 Rd8 25.Bg3 Qg5 26.Qc3 (better is 26.Bf4 Qf6 27.Bg3=) 26...Bc5 0–1. emeryt85 – frings82, internet, 2013.

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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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