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TESTC470 Release 2017-04-03
Send your 1.b4 games to me, please. Thank you! /Marek
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(c) Marek Trokenheim

1.b4 d5 2.Bb2 Qd6 3.a3 e5 4.Nf3 Nd7

(...)

5.Nc3 Ngf6 6.e3 a5 7.Nb5 +/–.

5.d3 b6 6.c4 c6 (6...dc4 7.Nc3=) 7.cd5 cd5 8.Qa4 f6 9.Nc3 Bb7 (9...a6 10.e3=) 10.Rc1 f5?? (better is 10...a6=) 11.Nb5+– Qf6 (11...Qg6 12.Nc7 Ke7 13.Na8 Ba8 14.Rc7+–) 12.Nc7 Kd8 13.Ne5! Ne5 (13...Ne5 14.Qe8 Mate attack) 14.Qe8 1–0. pierre – jamesmack, internet, 2012.

5.d3 f5 6.e3 (6.c4 dc4 7.dc4 Qd1 8.Kd1 e4=) 6...Ngf6 7.Be2 Be7 8.0–0 0–0 (8...a5 9.Nbd2=) 9.Re1 (9.c4 c6=) 9...c6 (9...a5 10.c4=) 10.c4 Ng4 11.c5 Qc7 (11...Qe6 12.h3 Nh6 13.Qa4=) 12.h3 Nh6 13.d4 (13.Qa4 e4 14.Nd4 Ne5=) 13...e4+= 14.Nfd2 (14.Ne5 Ne5 15.de5 Be6+=) 14...f4 15.Rf1 (15.Nf1+=) 15...g5 (15...fe3!? 16.fe3 Nf5–/+) 16.ef4 (16.Qb3 Nf6=) 16...gf4 17.Qb3 Nf6 18.Nc3 (better is 18.Re1!?=) 18...f3–/+ 19.gf3 Bh3 20.Rfe1 (20.fe4 A) 20...Bf1 21.ed5 (worse is 21.Rf1 Qf4–/+) 21...Bc5 22.dc6 Kg7 23.cb7 Bd4 24.Rf1–+ (24.ba8Q?? Qg3 25.Kh1 Qh4 26.Kg1 Qf2 27.Kh1 Qh4); B) 20...Bc5 21.Nd5 Qg7 22.Qg3 B1) 22...Bf1? 23.Nf6 Rf6 B11) 24.Rf1 Rg6 25.Qg6 Qg6 (25...hg6?! 26.bc5 b6 27.cb6–/+) 26.Kh1 Nf7–+; B12) 24.Nf1 Rg6 25.bc5 Re8–/+; B13) 24.Bf1?? Rg6 25.Bc4 Kf8 26.bc5 Rg3 27.fg3 Qg3 28.Kf1 Qe3–+; B14) 24.dc5 Be2 25.Bf6 Qg3 26.fg3+/–; B2) 22...cd5 23.Qg7 Kg7 24.dc5 Bf1 25.Kf1 Rad8 26.ed5 Rd5+/–) 20...e3! 21.fe3 (21.Nf1 ef2 22.Kh1 fe1R 23.Re1–+) 0–1. Hasler,Ulrich – Tedeski,E, CiF, 1993.

5.d3 g6 6.Nbd2 Bg7 (6...Ngf6 7.c4 d4 (7...Bg7 8.cd5 Nd5 9.Qb3 c6 10.Nc4 Qe7 11.h4 c5 12.b5 N5f6; 7...Bh6 8.cd5 Qd5 9.e4 Qe6 10.Qc2 0–0 11.Qc7 Bf4 12.g3 Bd2) 8.g3 a5 9.c5 Qe6 10.Bg2 Bh6 11.0–0 ab4 12.ab4 Ra1; 6...Bh6 7.c4 c6 8.g4 Bg7 9.c5 Qc7 10.Bg2 Ne7 11.Qc2 Nf8 12.g5 Ne6; 6...Ne7 7.h4 (7.c4 Bg7 8.cd5 Nd5 9.Qb3 h6 10.Nc4 Qe7 11.e4 N5b6 12.Be2 0–0; 7.e4 Bg7 8.Be2 0–0 9.0–0 b6 10.ed5 Nd5 11.Re1 c5 12.Nc4 Qc7) 7...Bg7 (7...a5 8.c4 Bg7 9.h5 ab4 10.h6 Bf6 11.ab4 Ra1 12.Qa1 e4) 8.h5 a5 9.g4 h6 10.Bh3 b6 11.c4 ab4 12.ab4 Ra1) 7.c4 c6 (7...Ne7 8.h4 a5 9.h5 ab4 10.ab4 Ra1 11.Qa1 0–0 12.b5 h6; 7...Ngf6 8.cd5 Nd5 9.Qb3 c6 10.Nc4 Qe7 11.h4 c5 12.b5 N5f6) 8.g3 Ne7 (8...Ngf6 9.Bg2 0–0 10.0–0 b6 11.cd5 cd5 12.Qa4 Bb7) 9.Bg2 (9.Bh3 0–0 10.0–0 b5 11.Rc1 a5 12.cd5 cd5) 9...0–0 (9...b6 10.Qc2 0–0 11.0–0 Bb7 12.Rac1 Rfc8) 10.Qc2 (10.0–0 b6 11.Qc2 Bb7 12.Rac1 Rfc8) 10...f5 (10...b6 11.0–0 Bb7 12.Rac1 Rfc8) 11.0–0 f4 (11...Bf6 12.cd5 cd5) 12.e4 (12.Rac1 a5) 12...d4 (12...fe3=) 13.c5 Qf6 14.Nc4 g5 (14...Qe6+=) 15.Nd6 (better is 15.Bh3!?+/–) 15...g4= 16.Qc4 Kh8 17.Nh4 f3 18.Bh1 Nb8 19.Nc8 Rc8 20.h3 h5 21.hg4 hg4 22.Bc1 Nd7 23.Bd2 Nf8 24.Qc1 Ne6 25.a4 Kg8 26.a5 a6 27.Ra3 Kf7 28.Bf3 gf3–+ 29.Qd1 Rh8 30.Qf3 Qf3 31.Nf3 Rh5 32.Kg2 Rah8 33.Raa1 Ng6 34.Rac1 Bh6–+ 35.Bh6 R5h6 36.Rcd1?? Kf6 37.Rg1–+ Ng5 38.Ng5 Kg5 39.Kf3? Rf8 40.Ke2 Rh2–+ 41.Rdf1 Kg4 42.Ke1 Rf3 43.Ke2 Ne7 44.Rh1 Rh1 45.Rh1+= Rf7 46.Rh4 Kg5 47.Rh8 Ng6 48.Rd8 Nf8 49.f4 ef4 50.gf4 Kf4 51.Rd4 Rh7 52.Kd2–/+ Ke5 53.Rd6 Ne6 54.Kc3 Nf4 55.Rd8 Ne6 56.Rd6 Nc7 57.Rd8 Kf4 58.Rf8 Ke3–+ 59.Rg8 Rd7 60.Rg3–/+ Ke2 61.Rh3 Nb5–+ 62.Kc2 Nd4 63.Kc3 Nf3 64.d4 Nd4 65.Rh2 Ke3 66.e5 Nb5 67.Kc2 Rf7 68.e6 Rf2?? 69.Rf2–/+ Kf2 70.e7 Nc7 71.Kd3 Kf3 72.Kd4 Kf4 73.Kc4 Ke5 74.b5 ab5 75.Kd3 Ke6 76.e8Q Ne8 77.Kc3 Kd5 78.Kb4 Nc7 79.a6 Na6 80.Ka5 Nc5 81.Kb4 Kd4 82.Ka3 Kc3 83.Ka2 b4 84.Kb1 b3 85.Kc1 Nd3 86.Kb1 b2 (86...b2 87.Ka2 Kc2 88.Ka3 b1Q 89.Ka4 Qb4) 0–1. Wiszniowski,Eugeniusz (1770) – Pawlowski,Michal (1910), I Zimowe granie w Hetmanie_A Poland, 2010.

5.d4 f6 6.de5= fe5 7.e3 Ngf6 8.Nc3 (8.c4 dc4 9.Bc4 Qd1 10.Kd1 Bd6=) 8...c6+= 9.Be2 Be7 10.0–0 0–0 11.e4 (11.Qd2 a5+=) 11...h6 (11...d4!? 12.Nb1 Ne4+=) 12.ed5 cd5 (worse is 12...Nd5 13.Bc4 N7b6 14.Ne5+/–) 13.Nb5 Qb8 14.c4 (14.Nh4 Rf7=) 14...a6 15.Nc3 d4 16.Nb1 b6 17.Nbd2 Bb7 18.Nd4? (better is 18.Re1=) 18...ed4–+ 19.Bd4 Qf4 20.Be3 Qc7 21.Bf3 Bf3 22.Qf3 Rae8 23.Rfc1 Ne5 24.Qd1 (24.Qh3!? Nfg4–+) 24...Neg4 25.g3 Ne3 26.fe3 Bd6 27.Nf1 Ne4 28.Qe1 (28.Qd5 Kh8 29.Ra2 Re5–+) 28...Rf2 (28...Qc6 29.b5 ab5 30.cb5 Qb5 31.a4–+) 29.c5 (29.Qd1 Be5 30.Qd5 Qf7–+) 29...bc5 (29...Be5 30.Rc4 Ba1 31.Re4 Rf1 32.Kf1 Re4 33.Qa1 bc5 34.Qc3 Qf7 35.Ke2 Qh5 36.Kd2–+) 30.bc5 (30.Rc4 Rf6 31.Qb1 Ng5–+) 30...Be5 31.Rab1 Ref8 (better is 31...Qf7!? 32.Qd1–+) 32.Qb4 Qc6 33.Qb6 Qd5 34.Rd1 0–1. croach (2405) – dontcare (2400), net–chess.com, 2016.

5.e3 a6 6.c4 c6 7.cd5 cd5 8.Nc3 Ngf6 (--> 5.e3 Ngf6 6.c4 c6 7.cd5 cd5 8.Nc3 a6).

5.g3 e4 6.Nd4 c5 7.bc5 Nc5 8.Nf5?? (better is 8.Nc3 Nf6 9.e3=) 8...Bf5–+ 9.Nc3 Qd7 10.d3 Bh3 (10...Rd8 11.Bg2–+) 11.de4 (11.Bh3 Qh3 12.Nd5 Qg2–+) 11...de4 12.Qd7 Bd7 13.Bg2 Nf6 14.0–0 Be7 15.f3 ef3 16.Bf3 0–0 17.Rad1 Bh3 18.Rf2 Rfd8 19.Rd8 (19.Nd5 Nd5 20.Bd5 Ne6–+) 19...Rd8 (worse is 19...Bd8 20.Nb5–+) 20.Bg2 Bg2 21.Kg2 Nfe4 (better is 21...Ng4!? 22.Rf4 Ne3 23.Kf3 Nc2 24.h4–+) 22.Ne4 Ne4 23.Rf4 Bf6 24.Bf6 Nf6 (worse is 24...gf6 25.Re4 Rd2 26.Re8 Kg7 27.c4+=) 25.g4 h6 26.h4 Rd2 27.Kf3 Rc2 28.g5 hg5 29.hg5 Nh7 30.Ra4 Ng5 31.Ke3 (31.Kg4 Ne6 32.Ra7 Re2 33.Rb7 Re4 34.Kg3 Re3 35.Kf2 Ra3 36.Rb8 Kh7–+) 31...a6 32.Kf4 (32.Rd4 Ne6 33.Rd7 Ra2 34.Rb7 Ra3 35.Kf2 Nc5 36.Rb8 Kh7–+) 32...Ne6 33.Kf3 Rc3 34.Kg2 Nc5 35.Ra5 (35.Rd4 Ra3 36.Rc4 b6–+) 35...b6 36.Ra6 (36.Rc5 bc5 37.a4 Ra3–+) 36...Na6 37.e4 Ra3 38.e5 b5 39.Kf2 b4 40.Ke2 Rc3 41.Kd2 Rc8 42.Kd3 b3 (42...b3 43.Ke3 b2 44.Kf3 b1Q 45.Kg4 Qd3 46.Kg5 Rc4 47.e6 Qd5) 0–1. Anastasiou,Efthymios – Malafouris,Dionisios, Patron CC–ch, 2008.

5.g3 Ngf6 6.Bg2 d4 (6...Be7 7.0–0+=) 7.0–0 b6?? (better is 7...a5=) 8.Nd4! c6 (8...Qd4 9.Bd4) 9.Nf3 (9.Nc6!? Bb7 10.b5 a6+–) 9...Bb7+/– 10.d3 Qe6 11.e4 Bd6 12.Nbd2 0–0 13.Nc4 Bc7 14.Ng5 Qe7 15.f4 ef4 16.gf4 b5 17.Nd2 (17.Ne3!?+/–) 17...a5+= 18.e5 (18.c3 h6 19.Nh3 Nb6+=) 18...Nd5= 19.Nde4 (better is 19.Qf3!?=) 19...h6+= 20.Qh5 (20.Nf3!? Ne3 21.Qd2 Nf1 22.Rf1 ab4 23.ab4–/+) 20...ab4–/+ (20...hg5?? 21.Ng5 Bb6 22.Kh1 Qg5 23.Qg5+–) 21.ab4 Ra1 (21...hg5?? 22.Ng5 Bb6 23.Kh1 Qg5 24.fg5 Ra1 25.Ba1+–; 21...Qb4 22.Rab1 Ra2 23.Ba1–/+) 22.Ba1 Ra8 (22...Ne3 23.Rb1+=) 23.Nd6 (23.Nh3 Nb4 24.Ng3 Nc2+=) 23...Bd6–/+ 24.ed6 Qe3 25.Kh1 Threatening mate... how? 25...hg5 26.Be4 (better is 26.fg5 Qe8 27.Bd4–/+) 26...N5f6–+ (26...Nf4?? 27.Qh7 Kf8 28.Qh8) 27.Qg5 (27.Qf3 Qf4 28.Qf4 gf4–+) 27...Ra1! 28.Ra1 Ne4 29.de4 c5 (29...Qe4?! 30.Qg2 Qd4 31.Rg1–+) 30.h4 (30.Ra8 Ba8 31.Qd8 Nf8 32.Qa8 Qf4 33.Kg2 Qd2 34.Kf3 Qd1 35.Ke3 Qd6 36.bc5 Qc5 37.Kd2 Qd6 38.Qd5 Qh2 39.Kc3 Qc7 40.Kb2–+) 30...Be4 31.Kh2 Ne5! 32.fe5 (32.Qe5 Qf2 A classical mating theme) 32...Qf2 33.Kh3 Bf5 (33...Bf5 34.Qf5 Qf5 35.Kg2 Qc2 36.Kg1 cb4–+) 0–1. golly1 – slogger, ChessWorld.net, 2007.

5.d4 e4

6.Nfd2 e3 7.fe3 Ngf6 =+.

6.Ne5 e3!? +=.

6.Ne5 g6 7.c4= c6 8.cd5 cd5 (worse is 8...Qd5 9.Nc3 Qe6 10.Nd7 Qd7 11.Ne4+–) 9.Nc3 a6 (worse is 9...Ne5 10.de5 Qd8 11.Nd5+–) 10.Nd7 Bd7 11.e3 f5 12.Qb3 Nf6 13.g3 Be7 14.Be2 0–0 (14...h5 15.h4+=) 15.0–0 Be6 16.Rfc1 g5 Black prepares the advance f4 17.b5 (17.Na4 b6=) 17...f4 18.ef4 (18.a4 fg3 19.hg3 Qb4 20.Qb4 Bb4=) 18...gf4+= 19.Nd1 Kh8 20.Qb4 (20.a4 ab5 21.Qb5 Bd7+=) 20...Qd7 (20...Qb4 21.ab4 f3 22.Bf1 ab5 23.Ra8 Ra8 24.Rc7 Bb4 25.Rb7–/+) 21.Qb3 (21.Qa5 ab5 22.Qb5 Qb5 23.Bb5 Ne8–/+) 21...Bh3 22.b6 Bd6 23.Rc3 (better is 23.Nc3!? e3 24.Nd1–+) 23...f3–+ 24.Rf3? (24.Bf3 ef3 25.Rf3–+) 24...ef3 25.Bf3 Qb5 (25...Qf5!? 26.Bh1 Ne4 27.Bc1–+) 26.Qb5 ab5 27.Nc3 (27.Ne3 Be6 28.Kg2–+) 27...Be6 (better is 27...b4 28.Nd5 ba3–+) 28.Nb5 Rad8 (28...Ne8 29.Bh5 Bb8 30.a4–+) 29.Bc3 (29.Re1 Bg4 30.Bg2 Rf7–/+) 29...Rfe8 (29...Rf7 30.Re1 Bf5 31.Bd2–+) 30.Kg2 Bg4 31.Bg4 Ng4 32.h3 Nf6 33.Ba5 (33.Bd2 Ne4 34.Ra2 Rc8–+) 33...Re2 34.Rc1? (34.Kf1 Rc2 35.Re1–+) 34...Ne4 35.Nd6 Rf2 (35...Nd6?! 36.Kf1 Re6 37.Bb4–+) 36.Kg1 Rd6 (36...Rd6 37.Rc8 Kg7 38.Rc7 Kg6–+) 0–1. Nussberger,Paolo – Zdjelar,Dusan (2200), Harkany Tenkes Cup op, 1998.

5.Nc3 c6

6.e3 Ngf6 7.Ne2 (7.Be2 c5=) 7...Be7+= 8.Ng3 g6 (8...Qe6 9.d4 e4 10.Ng5+=) 9.c4 0–0 (9...e4 10.Nd4=) 10.h4 (10.d4 e4 11.Nd2 a5=) 10...e4 (10...dc4 11.Bc4 e4 12.Ng5+=) 11.c5 Qc7 12.Nd4 Ne5 (12...b6 13.cb6 ab6 14.h5+=) 13.Qc2 (13.Be2 Nd3 14.Bd3 ed3=) 13...Neg4 (13...Bg4+=) 14.d3 (better is 14.Be2=) 14...Ne3!–/+ 15.fe3 Theme: Deflection from g3 15...Qg3 Annihilates a defender: g3 16.Qf2 Qf2 17.Kf2 Ng4 18.Ke2 (18.Ke1 Ne3 19.de4 de4–+) 18...ed3 19.Kd2 Bf6 (19...Nf2 20.Rg1–+) 20.Bd3–/+ Nf2 21.Rhf1 (21.Rh2!?–/+) 21...Bh4–+ 22.Nf3 (22.a4 Nd3 23.Kd3 Re8–+) 22...Nd3 23.Kd3 Bf5 24.Kd2 Bg3 (24...Be7 25.Be5–+) 25.Bf6 (25.Be5 Be5 26.Ne5 f6–+) 25...Rfe8 26.Rh1 (26.Ng5 h6 27.Rf5 gf5–+ (27...hg5 28.Rh1 Bh4 29.Rg5+–)) 26...h5 27.Raf1 Re4 (27...a5 28.Ng5 Be4 29.Ne4 Re4 30.Rf3–+) 28.Ng5 Rc4 Black fights for the Initiative 29.Rf5 gf5 30.Rh5 (better is 30.Ne4 Be5 31.Rh5 Bf6 32.Nf6 Kg7 33.Rf5–+) 30...Rh4 31.Rh4 Bh4 32.Kd3 Bg5 (32...a5 33.Kd4–+) 33.Bg5 Kh7 34.g3 (34.Bf4 Rg8–+) 34...Kg6 35.Bf4 Rh8 (35...b5 36.Bc7–+) 36.a4 (36.Kd4 Rh1 37.Ke5 f6 38.Kd6 Rh7–+) 36...Rh1 37.a5 (37.Be5 f6 38.Bf4 Rd1 39.Kc2 Re1–+) 37...a6 (37...Rb1 38.Kc3–+) 38.Kc3 Rc1 39.Kb3 Rc4 40.Ka3 (40.Be5 Re4 41.Bf4 Kf6–+) 40...Kh5 (40...Re4 41.Ka4–+) 41.Kb3 (41.Ka4 Re4–+) 41...Kg4 42.Ka3 (42.Be5 Re4 43.Bd6 Re3 44.Kc2 Rg3–+) 42...Kf3 43.Kb3 (43.Bg5–+) 43...Rf4 44.ef4 Kg3 45.Kc3 Kf4 46.Kd2 (46.Kd4 Kg3–+) 46...Kg3 (46...Kg3 47.Ke2 Kg2–+) 0–1. Collins,G – Graziani,Jacques, Paris op, 1993.

6.e4 d4 7.Ne2 Ndf6 (7...c5 8.bc5 Nc5 9.Ng3=) 8.c3 d3 9.Ng3 h5 10.h4 Bg4 11.Qb3 (11.c4=) 11...Ne7 (11...Bf3 12.gf3 Ne7 13.c4+=) 12.c4 (12.Ng5 Be6 13.Ne6 fe6+/–) 12...Ng6 (12...Bf3 13.gf3 Ng6 14.c5+=) 13.c5 (13.Bd3 Bf3 14.c5 Qd7 15.gf3 Rd8=) 13...Qc7 (13...Qd7 14.Ne5 (14.Bd3?! Bf3 15.gf3 Rd8=) 14...Ne5 15.Be5+=) 14.Bd3 (14.Qd3 Be7 15.Qc3 Bf3 16.Qf3+/–) 14...0–0–0 (14...Bf3!? 15.gf3 b6+=) 15.Bc4+/– Rd7? (better is 15...Bf3 16.Qf3 Kb8+–) 16.Ng5+– Nf4 (16...Re7 17.Nf7 Rh7 18.Nf5 Bf5 19.ef5+–) 17.0–0 Rd2 (17...Ne6 18.Nf7! Rf7 19.Be6 Be6 20.Qe6 Qd7 21.Qe5+–) 18.Nf7 (18.Nf7 Rb2 19.Qb2+–; 18.Bf7?! Rd3 19.Qc2 Rd7+–) 1–0. qqq – www, internet, 2009.

6.e4 Ngf6 7.ed5 Nd5 8.Nd5 Qd5 =.

6.e3 g6

7.Be2 Be7 A) 8.Rb1 Ngf6 9.0–0 0–0 10.d3 a5 11.b5 c5 12.e4 d4 13.Na4 b6; B) 8.0–0 Ngf6 9.d3 0–0 10.Qd2 a5 11.h3 Re8 12.ba5 Bd8 13.a4 Ba5; C) 8.d3 Ngf6 (8...a5 9.0–0 Ngf6 10.b5 0–0 11.Re1 Re8 12.g3 Nc5 13.d4 ed4) 9.0–0 0–0 10.Qd2 a5 11.Rfe1 Re8 12.Reb1 b5 13.Ra2 ab4; D) 8.h3 Ngf6 9.0–0 0–0 10.Rb1 e4 11.Nd4 a5 12.ba5 Ra5 13.d3 Nc5.

7.Be2 Ngf6 A) 8.Ng5 Bg7 (8...Bh6 9.h4 0–0 10.0–0 Nb6 11.b5 Bf5 12.bc6 bc6 13.d3 Bg7; 8...Be7 9.0–0 0–0 10.d3 a5 11.Qd2 ab4 12.ab4 Ra1 13.Ra1 Qb4; 8...a5 9.0–0 h6 10.Nf3 Bg7 11.b5 0–0 12.bc6 bc6 13.Rb1 Rb8) 9.0–0 0–0 10.Rb1 h6 11.Nf3 a5 12.b5 e4 13.Nh4 Nc5; B) 8.Qb1 Be7 (8...Bg7 9.h3 0–0 10.0–0 a5 11.b5 e4 12.Nh4 Nc5 13.d3 ed3; 8...a5 9.ba5 Ra5 10.a4 Qc7 11.0–0 Bd6 12.Ba3 Ba3 13.Ra3 0–0; 8...Bh6 9.0–0 0–0 10.Na4 a5 11.d4 e4 12.Ne5 Qc7 13.Qd1 Bg7) 9.0–0 0–0 10.Qa2 a5 11.b5 e4 12.Ng5 Nc5 13.f3 Nfd7; C) 8.d3 Bg7 (8...a5 9.0–0 Bg7 10.Qd2 0–0 11.h3 Rd8 12.Ng5 Re8 13.Rfb1 b6; 8...Bh6 9.h4 a5 10.0–0 0–0 11.b5 Re8 12.h5 gh5 13.Rb1 Rb8; 8...Be7 9.0–0 0–0 10.Qd2 a5 11.Na4 e4 12.Nd4 ab4 13.ab4 Qb4) 9.0–0 0–0 10.Qd2 a5 11.Na4 ab4 12.ab4 b6 13.Qc3 Bb7; D) 8.0–0 Bg7 (8...Be7 9.h3 0–0 10.d3 a5 11.Qd2 Re8 12.Ng5 ab4 13.ab4 Ra1; 8...Bh6 9.h4 0–0 10.Ng5 Nb6 11.d3 Bg7 12.Qd2 Bf5 13.f4 Rfe8) 9.Rb1 0–0 10.h3 e4 11.Nd4 a5 12.ba5 Ra5 13.a4 Ra7.

7.Be2 Bg7 8.0–0 f5 (8...Ngf6 9.d3 0–0 10.Qd2 b6 11.h3 Bb7 12.Ng5 h6 13.Nf3 a5; 8...Ne7 9.d3 0–0 10.Qd2 b6 11.h3 Bb7 12.b5 a6 13.a4 ab5) 9.Na4 (9.h3 Ngf6 10.d4 e4 11.Nd2 0–0 12.b5 Nb6 13.a4 Qb4) 9...Ngf6 (9...Ne7 10.Ng5 h6 11.Nf3 0–0 12.Qc1 e4 13.Nd4 b5) 10.c4 (10.d4 e4 11.Ne5 Qe7 (11...0–0 12.c4 dc4 13.Nc4 Qe6) 12.Nd7 (12.c4 0–0 13.Qb3 Nb6) 12...Nd7= 13.Qd2 0–0) 10...0–0 (better is 10...dc4!? 11.Qc2 b5–/+ 12.Nc3 a5 13.e4 fe4) 11.Rc1 (11.d4 e4 (11...Ne4 12.cd5 cd5 13.Rc1 b6) 12.Ne5 Qe6+= (12...b6 13.Rc1 Bb7) 13.Rc1 dc4) 11...Kh8 (11...dc4 12.Bc4 Nd5= 13.Qb3 a6; 11...e4 12.c5 Qc7 13.Nd4 Ng4) 12.Rc2 (better is 12.d4 e4 (12...ed4 13.cd5 Nd5) 13.Ne5+= dc4) 12...dc4–/+ 13.Qa1 (13.Nc5 b5) 13...e4 (13...b5–+) 14.Ng5 (14.Ne5 b5 15.Nd7 Bd7–/+) 14...h6 (14...b5 15.f3 ef3 16.Rf3–+) 15.Nh3 b5 16.Nf4 Kh7 (16...ba4?! 17.Ng6 Kh7 18.Nf8 Qf8 19.Bc4= (worse is 19.Rc4 Ba6–/+)) 17.Nc5 Nc5 18.bc5 Qc5 19.a4 (19.d4 Qd6–+) 19...Qb6 (19...Qe7!? 20.Rb1 Rd8 21.Ba3–+) 20.Rb1 g5 21.Ba3 (21.Nh5 Nh5 22.Bh5 Bb2 23.Qb2 Bd7–+ (23...ba4?! 24.Qc1 Qc7 25.Rc4+=)) 21...Nd7 (21...Rf7 22.Bc4 Nd5 23.Bd5 cd5 24.Nd5 Ba1 25.Nb6 ab6 26.Ra1 ba4 27.Rb1–+) 22.Qa2 gf4 23.Bf8 Nf8 24.Bc4 Bd7 25.ef4 a6 26.Qa3 Qa5 27.Qc5?! Qa4 28.Bf7 Qd4 29.Qa3 a5 30.h4 b4 31.Qc1 Qf6 32.Ba2 Qh4 33.g3 Qe7 34.Rc5 Ne6 35.Rf5 Nd4 36.Rf7 Qf7! 37.Bf7 Ne2 38.Kf1 Nc1 39.Rc1 a4 40.Rc4 a3 41.Rb4 a2 42.Ba2 Ra2 43.Ke2 Bg4 44.Ke3 Bf3 45.f5 Be5 46.Rb7 Kg8 47.Rb3 c5 48.g4 c4 49.Rc3 Bc3 50.g5 Bd2 51.Kd4–+ Bg5 52.f6 Bf6 53.Ke3 Bg5 (53...Bg5 54.Kd4 Rd2 55.Kc3 Rf2 56.Kd4 Rc2 57.Kd5 e3 58.Kd4 e2 59.Kc5 Bd8 60.Kd6 e1Q 61.Kc5 Qe5 62.Kb4 Qa5#; 53...c3 54.Kf4 c2 55.Kf5 c1Q 56.Kf6 Ra6 57.Ke5 Qc5 58.Kf4 Qg5#) 0–1. Penkov,Aleksey (2075) – Pavlov,Gennady (2115), Chigorin CC, St Petersburg RUS, 2005.

7.Ng5 A) 7...Ngf6 A1) 8.d4 h6 (8...e4 9.b5 Nb6 10.bc6 bc6 11.Be2 h6 12.Nh3 Bh3 13.gh3 Rb8) 9.de5 Ne5 10.Nf3 Nf3 11.gf3 Qe7 12.Qd4 Bg7 13.0–0–0 0–0; A2) 8.Ra2 Be7 (8...Bg7 9.Bd3 0–0 10.0–0 h6 11.Nh3 a5 12.Ra1 b5 13.f4 e4) 9.Ra1 0–0 10.Be2 a5 11.0–0 ab4 12.ab4 Ra1 13.Qa1 Qb4; A3) 8.Be2 Be7 (8...a5 9.b5 Bg7 10.0–0 h6 11.Nf3 0–0 12.bc6 bc6 13.Rb1 Rb8; 8...Bg7 9.0–0 0–0 10.d3 a5 11.Qd2 h6 12.Nf3 Re8 13.Na4 ab4; 8...h6 9.Nf3 Bg7 10.0–0 0–0 11.d3 Re8 12.Qd2 b6 13.h3 a5) 9.0–0 0–0 10.f4 ef4 11.ef4 h6 12.Nf3 Qf4 13.Re1 Ng4; B) 7...Bg7 B1) 8.Be2 Ngf6 (8...Ne7 9.0–0 0–0 10.h4 Nf6 11.Na4 Nf5 12.h5 h6 13.Nh3 Nh5; 8...h6 9.Nf3 Ngf6 10.0–0 0–0 11.d3 Re8 12.h3 Nb6 13.Re1 d4; 8...a5 9.f4 h6 10.fe5 Ne5 11.Nf3 Ne7 12.0–0 Nf3 13.Bf3 Be5) 9.d4 0–0 10.0–0 h6 11.de5 Ne5 12.Nf3 Nf3 13.Bf3 Re8; B2) 8.d3 Ne7 (8...Bf6 9.h4 Ne7 10.Be2 0–0 11.Qd2 a5 12.ba5 Qc7 13.0–0 Qa5; 8...Nh6 9.Be2 Bf6 10.Nf3 0–0 11.0–0 a5 12.Qd2 Nf5 13.e4 Nd4; 8...Ngf6 9.Be2 h6 10.Nf3 0–0 11.0–0 Re8 12.Qd2 b6 13.Na4 Bb7; 8...h6 9.Nf3 Ngf6 10.Be2 0–0 11.0–0 Re8 12.Qd2 b6 13.Na4 Bb7) 9.Be2 0–0 10.0–0 Nf6 11.e4 d4 12.Na4 h6 13.Nf3 Nd7; B3) 8.Bd3 Ngf6 (8...h6 9.Nh3 Ngf6 10.0–0 0–0 11.f3 a5 12.b5 Nc5 13.Nf2 Re8; 8...f6 9.Nh3 Ne7 10.0–0 0–0 11.f3 Nb6 12.Nf2 Be6 13.b5 cb5; 8...Ne7 9.e4 d4 10.Ne2 Nb6 11.a4 h6 12.Nf3 Be6 13.0–0 0–0) 9.e4 d4 10.Ne2 h6 11.Nf3 0–0 12.0–0 Rd8 13.Qb1 a5; C) 7...Be7 C1) 8.Nf3 Ngf6 (8...a5 9.ba5 Ngf6 10.a4 Qc7 11.a6 b6 12.Be2 0–0 13.0–0 Ba6) 9.Be2 a5 10.0–0 0–0 11.h3 b5 12.ba5 Ra5 13.d4 e4; C2) 8.h4 a5 (8...h6 9.Nf3 Ngf6 10.h5 Nh5 11.Be2 Nhf6 12.Kf1 h5 13.Kg1 0–0; 8...Ngf6 9.Be2 a5 10.0–0 0–0 11.b5 h6 12.bc6 bc6 13.Nf3 Rb8; 8...Nh6 9.Bd3 0–0 10.e4 d4 11.Ne2 Nb6 12.0–0 Na4 13.Qb1 f6) 9.b5 Ngf6 10.bc6 bc6 11.Be2 h6 12.Nf3 Rb8 13.Rb1 0–0.

5.d3 Ngf6

6.Nbd2 a5 =+.

6.Nbd2 e4!

6.Nbd2 Be7 7.e3 (7.e4 a5=) 7...0–0 8.Be2 (8.c4 a5=) 8...c5 (8...Rd8 9.c4=) 9.bc5 Qc5 (9...Qc7!?=) 10.Ne5+/– (10.Be5?! Ne5 11.Ne5 d4=) 10...Ne5 (10...Qc7 11.Nef3+/–) 11.Be5 Be6 12.Nf3 (12.0–0 Rfc8 13.c3 Qc6+/–) 12...Ng4 (12...Rac8 13.c3+=) 13.Bd4 Qa5 14.Qd2 Qd2 (14...Qc7 15.h3 Nf6 16.0–0+/–) 15.Nd2 Rac8 16.h3 (16.Ra2 b6+/–) 16...Nf6 (16...Nh6 17.Kd1+/–) 17.Ba7 (17.Kd1 Rc6+/–) 17...Rc2 18.Bd1 (18.Bd4 Rfc8+/–) 18...Rc3+= 19.Be2 (19.a4!?+=) 19...Ra3= 20.Ra3 Ba3 21.0–0 (21.Bd4 Ra8 22.Bf6 gf6=) 21...Bb4 (21...Rc8 22.Nb3=) 22.Nb3 (22.Nf3 Ba5+=) 22...Ra8= 23.Bb6 (23.Bd4 Nd7=) 23...Ra6 (23...Ra2 24.Bf3=) 24.Bc7 (24.Bc5 Bc5 25.Nc5 Ra2=) 24...Rc6 (24...Ra2 25.Bf3=) 25.Be5 (25.Bd8 Nd7=) 25...Nd7 26.Bg3 b5? (better is 26...Bc3!?=) 27.Nd4+/– Rb6 28.Ne6 (better is 28.Rb1 Be7 29.Rb5+/–) 28...fe6= (28...Re6? 29.Rb1 Bd6 30.Bg4 Bg3 31.Be6 Bf2 32.Kf2 fe6 33.Rb5+–) 29.d4 (better is 29.Ra1 Nf6 30.Ra7=) 29...Kf7 (better is 29...Bc3=) 30.Rb1+/– Ba5? (30...Bc3 31.Bb5 Ke7 32.Rb3+/–) 31.Rb5?? (better is 31.Bc7+–) 31...Rb5 (31...Bb4 32.Kf1+/–) 32.Bb5 Nb6 (32...Ke7 33.Kf1+/–) 33.Bd6 (33.Kf1 g5+–) 33...Nc4+/– 34.Bc5 Bc7 (34...h6 35.e4+/–) 35.e4 (35.Bc6 Na5 36.Ba8 Nb3+/–) 35...Kf6 (35...Nd6!? 36.Bd6 Bd6 37.ed5 ed5+/–) 36.e5+– Kf5 (36...Kf7+–) 37.Bd7 (37.Ba4!?+–) 37...Bb6+/– 38.g4 Ke4 39.Be6 (39.f3 Kf4 40.Bb6 Nb6 41.Be6 Ke3+/–) 39...Bc5+= 40.dc5 Ke5 41.Bg8 h6 (better is 41...Kd4+/–) 42.c6?? (better is 42.f4 Ke4 43.c6+/–) 42...Kd6= 43.c7 Nb6 44.f4 Kc7 45.h4 (45.g5 Kd6=) 45...Kd6 46.Kf2 Nd7 (46...Kc5 47.g5=) 47.g5 hg5 48.hg5 Kc5 49.Ke3 d4 (49...Kc4 50.f5=) 50.Kd3+= Nb6 51.f5 Nd5 52.Bd5 (52.Ke4 Nc3 53.Kf4 d3=) 52...Kd5 53.f6 gf6 54.g6 Ke6 55.g7 Kf7 56.Kd4 Kg7 57.Ke4 Kg6 58.Kf4 f5 59.Kg3 Kf6 60.Kf3 Ke5 61.Ke3 f4 62.Kf3 Kf5 63.Kf2 Ke4 64.Ke2 f3 65.Ke1?? (65.Kf2 Ke5=) 65...Kf4 66.Kf2= Ke4 67.Ke1?? (better is 67.Kf1=) 67...Ke3 68.Kf1 f2–+ 69.Kg2 Ke2 0–1. Crackz (1720) – Eralos (1775), Partida evaluada, 3m + 0s, 2007.

6.e3 a5 7.b5 =+.

6.e3 Be7 7.Be2 0–0 8.c3 (8.c4 Rd8+=) 8...Re8 9.0–0 c5 10.Nbd2 b6 11.c4 d4 12.Nh4 Nf8 13.b5 g6 (13...a6 14.ba6 Ra6 15.Qb3+=) 14.a4 (14.f4 A) 14...de3? 15.fe5 Qc7 16.ef6+– (worse is 16.Rf6 Bf6 17.ef6 ed2 18.Qd2 Ne6+=); B) 14...ef4 15.ed4 cd4=) 14...Bb7 15.a5 e4 (better is 15...a6!?=) 16.a6+/– Bc8 17.de4 N6d7 18.Ndf3 (better is 18.e5 Ne5 19.Nhf3+/–) 18...Nf6?? (better is 18...Bf6 19.ed4 Re4+/–) 19.e5+– (19.ed4?! Ne4 20.Bd3 f5+–) 19...Qd8 20.ef6 Bf6 21.g3 Bh3 22.Re1 (22.ed4?! Bf1 23.Bf1 Ne6+–) 22...g5 23.Ng2 g4 24.Nfh4 (24.ed4?! Bg2 25.Ne5 Be5 26.de5 Qd1 27.Rad1 Bh3+–) 24...h5 (24...de3 25.Qd8 ef2 26.Kf2 Bd8 27.Nf5+–) 25.Nf4 Bh4 26.gh4 Qh4 (26...de3 27.fe3 Qh4 28.Qd3+–) 27.ed4 (27.Nh3?! de3 28.fe3 Qh3+–) 27...Re4 (27...Ne6 28.Ne6 (worse is 28.Nh3 gh3 29.Bf3 Rad8+–) 28...Re6 29.d5+–) 28.Nd5 cd4 29.Bd3 Re1 (29...Ree8 30.Bd4 Nd7 31.Qd2+–) 30.Qe1 Ne6 (30...Qd8 31.Qe5 Ne6+–) 31.Qe4 Ng5 (31...Qg5 32.Ne7 Kf8 33.Qa8 Ke7 34.Qa7 Kf6+–) 32.Ne7 Kf8 33.Qa8 Ke7 34.Ba3 Kf6 (34...Kd7 35.Qa7 Kc8 36.Bf5 Ne6 37.Qb7 Kd8 38.a7 Qf2 39.Kf2 g3 40.hg3 Bf5 41.a8Q) 35.Qd8 (35.Qa7?? Nf3 36.Kh1 Bg2 37.Kg2 Qh3 38.Kh1 Qh2) 35...Kg7 36.Bf8 1–0. wiking – Lunog, queenalice.com, 2010.

6.e3 c6

7.Nbd2 Qe6 8.c4 Bd6 9.Be2 0–0 10.Qc2 Rd8 11.0–0 Nf8 12.b5 (12.Rfc1 Ng6=) 12...Bd7 (12...cb5 13.cb5 Ng6 14.Rac1+=) 13.bc6 bc6 14.Bc3 Ng6 15.Rfb1 Rdb8 16.Bb4 c5 17.cd5 Qd5 18.Ba5 Qc6 19.Ng5 Nh4 20.Bf1 Nf5 21.Nc4 Rb1 22.Rb1 Ne7 23.g3 Ned5 24.e4 Nc7 (24...Ne7!?+=) 25.Nf3 Re8 26.Bc3 (26.Nd6?! Qd6 27.d4 ed4=) 26...Ne6 27.Nfe5 Be5 28.Ne5 Qc7 29.f4 Bc8 30.Qa4 Nd7 31.Nc4 Nd4 32.e5 Re6 33.Ba5 Nb6 (better is 33...Qc6 34.Qc6 Nc6+–) 34.Nb6 ab6 35.Bb6 Qb7 36.Bg2 Qe7 37.Qc4 (37.Qc4 Rb6 38.Rb6+–) 1–0. pierre – taiger, internet, 2006.

7.Nbd2 Be7 8.Be2 0–0 9.c4 b5 10.cb5 cb5 11.Nb3 Ba6 (11...Qe6 12.Rc1=+) 12.Rc1 Rac8 13.Rc8 (13.Nc5 Nc5 14.bc5 Rc5 15.Rc5 Qc5 16.Ne5 Rc8=) 13...Rc8 14.Qa1 e4 15.Nfd4 Qb6 16.0–0 Bd6 17.Nf5 Bf8 18.Rd1 Rc7 19.de4 de4 20.Nbd4 Rc8 21.Ng3 Re8 22.Rc1 Ne5 23.Nb3 Ned7 24.Na5 Qb8 (24...Rc8!?+=) 25.Nc6+/– Qb7 26.Bd4 (26.Nf5 Re6 27.Nd8 Qd5 28.Ne6 Qe6+–) 26...Rc8 27.Na7 Ra8 28.a4 (28...Ra7 29.ab5 Bb5 30.Qa7 Qa7 31.Ba7 Be2 32.Ne2 Bb4 33.Bd4+–) 1–0. Poschmann,Hans – Zaniratti, corr, 1998.

7.Nbd2 g6 8.c4 Bg7 9.c5 Qe7 10.e4 (10.Be2 0–0=) 10...0–0 11.Be2 d4 (11...b6 12.cb6 ab6 13.0–0+=) 12.0–0 (12.Qa4 Nh5=) 12...Ne8 (12...b6 13.cb6 ab6 14.Qc2=) 13.h3 f5 (13...b6 14.Qa4 Bb7 15.Rfc1=) 14.ef5 White gets the initiative 14...gf5 15.Qb3 Kh8 16.Rac1 Ndf6 17.Nc4 Nd5 (17...Be6 18.Qa4 Nd7 19.Rfe1=) 18.Rfe1+= Nf4 19.Nce5 (19.Qa4!? e4 20.Bf1+/– (20.Nd4 Qg5 21.g3 Nh3 22.Kg2 f4 23.de4 Nf2–+)) 19...Be5= 20.Bf1 (20.Bd4? Bd4 (20...Ne2?? 21.Re2 Nf6 22.Rce1+–) 21.Nd4 Qg7–+ (21...Ne2?! 22.Ne2 Qg5 23.Qc4+=)) 20...Qg7 (better is 20...Nh3!? 21.gh3 Be6=) 21.Ne5+/– Be6 (21...Nh3 22.Kh2 Nf2 23.Nf7 Qf7 A) 24.Bd4? Nf6 25.Qf7 N2g4 (worse is 25...Rf7 26.Bf2 Kg7 27.Bd4+=) 26.Kg3 Rf7–+; B) 24.Qf7 Ng4 25.Kg3 Rf7 26.Re8 Kg7 27.Bd4 Nf6 28.Rce1+/–) 22.Qc2 Nh3 23.Kh2 Nf6 (23...Nf4 24.Bd4 Nf6 25.Kg1+/–) 24.Bd4 (24.Qd2 Ng5 25.f4 Nf7 26.Nc6 bc6 27.Re6 Ng4 28.Kg1 Rfe8 29.Rc6 Kg8+–) 24...Qh6 25.Qb2 Nf2? (better is 25...Bd5 26.f3 Ng5 27.Kg1 Rad8+/–) 26.Kg1 N2g4 The mate threat is Qh2 27.Ng4 fg4 28.Bf6?? (better is 28.Re6 g3 29.Be2 (29.Bf6 Kg8 30.Bh4 Qh4 31.Qg7 Kg7 32.Re7 Kg8 33.Rh7 Kh7 34.d4 Qh2) 29...Qh2 30.Kf1 Qh1 31.Bg1+–) 28...Qf6= 29.Qf6 Rf6 30.Re4 Rg8 31.Rce1 Rgg6 (31...Bd5 32.Re7 Rg7 33.Re8 Rg8 34.g3=) 32.g3 Bd5 33.Re8 Rg8 34.Bg2 Bg2 35.Kg2 Rf3 36.R1e3 Re3 37.Re3 Rd8 38.Kf2 Rd7 39.Ke2 Kg7 40.Re6 Rf7 41.a4 Rf6 42.Re4 h5 43.a5 (43.Re7!? Rf7 44.Rf7 Kf7 45.Ke3+=) 43...Kf7= 44.Rf4?? (44.d4 Rf3 45.a6 ba6=) 44...Ke6 (better is 44...Rf4 45.gf4 h4–+) 45.Ke3= Rg6 (45...Rf4 46.Kf4 Kf6 47.a6 ba6 48.d4=) 46.Re4+= Kf7 47.Re5 h4 (better is 47...Rh6!?+=) 48.gh4+/– g3 The passed pawn on h4 will quickly become a dangerous weapon (48...Kf6 49.Kf4 g3 50.Re1+/–) 49.Rg5+– Rh6 (49...Rg5 50.hg5 Kg6 51.d4 Kg5 52.d5 cd5 53.a6 ba6 54.c6 d4 55.Kf3= (55.Kd4?? g2–+)) 50.h5 (50.Rg4 Rh5+–) 50...Rh8 (better is 50...Kf6!? 51.Rg3 Rh5+/–) 51.Kf3+– (51.Rg3?! Rh5 52.Rg4 Rh1+/–) 51...Kf6 52.Kg4 (52.Rg6 Kf7 53.a6 ba6 54.Rc6 Rh5 55.Ra6 Rd5 56.Ra7 Ke6 57.Ra6 Ke7+–) 52...g2 Do you see the mate threat? 53.Kh4 White gets deadly initiative 53...Rd8 54.Rg2 Rd4 55.Rg4 Rd3 56.Rf4 Kg7 57.Kg5 Rd5 58.Rf5 Rd7 59.h6 Kh7 60.Re5 (60.Re5 Rf7 61.a6 ba6 62.Re6+–) 1–0. Dupont,Gerhard – Wendt,Rene, corr DDR–ch M685, 1982.

7.Be2 a5 8.ba5 Ra5 9.0–0 +=.

7.Be2 g6 8.0–0= Bg7 9.c4 0–0 10.Nbd2 Re8 (10...Rd8 11.Qc2=) 11.e4 (11.d4 ed4 12.Bd4 c5 13.bc5 Nc5+=) 11...b6 (11...a5 12.c5 Qe6 13.Qc2=) 12.Re1 (12.ed5 cd5 13.d4 ed4 14.Nd4 a5=) 12...d4 13.Bf1 (13.Bc1 a6=) 13...c5 (13...a5 14.b5=) 14.b5 Nf8 15.g3 (15.Be2 Ne6=) 15...Bh6 16.Bg2 Nh5 (16...Ne6 17.a4+=) 17.Nb3 Bg4 18.Bc1 (18.h3 Be6=) 18...Bc1+= 19.Qc1 Qf6 20.Qg5 (20.Nfd2 a6+=) 20...Bf3 21.Qf6 Nf6 22.Bf3 Ne6 23.Bg2 a6 (23...g5 24.h3+=) 24.a4= a5 25.h3 (25.h4 h5=) 25...Rad8+= 26.Rf1 g5 27.Nc1 h6 28.Ne2 Kg7 29.f3 (29.f4 ef4 30.gf4 Nd7=) 29...Rg8 30.Kh2 Kf8 31.Rae1 Ke7 32.f4 (32.Rf2 Kd6=) 32...ef4 (32...gf4 33.gf4 Nd7 34.Rf2+=) 33.gf4 Nh5 34.fg5 hg5 (worse is 34...Ng5 35.Rf5 Ng7 36.Rf2+=) 35.Rf5 (35.e5 Nef4 36.Rf3 Rde8+=) 35...Nhf4+= 36.Nf4 Nf4 37.Bf1 (37.Rf1 Rd6+= (worse is 37...Nd3 38.Rf7 Ke8 39.Rb7+=)) 37...Rd6–/+ 38.Kg3 Rh6 39.Rd1 Rh4 40.Rd2 f6 41.e5 (41.Rf2!?–/+) 41...Nh5–+ 42.Kh2 Ke6 43.Rdf2 g4 (43...fe5!? 44.Bg2 Rg7–/+) 44.Rf6–/+ Nf6 45.Rf6 Ke5 46.Rb6 gh3 (better is 46...g3 47.Kg2 Rf4–+) 47.Rb7?? (better is 47.Rc6 Rf4 48.Rc5 Kf6 49.Rc6 Ke7 50.Bh3 Rf2 51.Kh1–+) 47...Rf8–+ 48.Re7 Kd6 49.Re1 Rh7 (49...Rh6 50.Rb1 Rf2 51.Kg1 h2 52.Kh1–+) 50.Rb1 Kc7 51.Kg1 Kb6 52.Re1 Rh6 53.Rb1 h2 54.Kh1 Rf2 0–1. Etmans,Maarten D (2010) – Jong,Peter J J de (2285), Dutch CC Championship KE09, 2006.

6.e3 g6

7.c4 dc4 8.Nc3 Bg7 (8...c5 9.dc4 Qb6 10.b5+=) 9.dc4+= 0–0 (9...Qc6 10.Bd3+=) 10.Qd6+/– cd6 11.0–0–0 Nb6 (11...Ne8 12.Be2+/–) 12.Rd6+– Be6 (12...e4 13.Ng5 Bf5 14.c5+/–) 13.c5 (worse is 13.Ne5 Ne8 14.Re6 fe6+/–) 13...Nc8 (13...Nbd7 14.Ng5 Bb3 15.Ba1+–) 14.Re6 fe6 15.Bc4 Ne7 (15...Kh8 16.Be6 Re8 17.Bb3+–) 16.Ng5 Nfd5 (16...Kh8 17.Ne6 Rfc8+–) 17.Ne6 Nc3 18.Bc3 Rf7 (18...b5 19.Bb3 Kh8 20.Nf8 Rf8+–) 19.Ng5 Raf8 20.Nf7 Rf7 21.Rd1 a6 (21...Bf6 22.Rd7 b5 23.Bf7 Kf7 24.Ra7+–) 22.Rd8 Bf8 23.Rd7 Kg7 24.Be5 Rf6 25.Rb7 1–0. pierre – Cool64, internet, 2015.

7.c4 Bg7 8.Nc3 c6 9.Be2 +=.

7.Nbd2 Bg7 8.c4 c6 (8...0–0 9.cd5 Nd5 10.Ne4=) 9.Qc2 (9.d4 e4 10.Ne5 0–0=) 9...0–0 10.Rc1 (10.d4 e4 11.Ne5 a5=) 10...Re8 (10...b5 11.d4 e4 12.c5=+) 11.c5 (11.d4 e4 12.Ne5 Ne5 13.de5 Re5 14.Be5 Qe5 15.cd5 Qd5+=) 11...Qc7 12.e4 (12.Be2 a5=) 12...Nh5 (12...d4 13.Be2=) 13.g3 f5 (13...d4 14.Bh3=) 14.Bg2 (14.ef5 gf5 15.Bh3 e4 16.de4 fe4 (< 16...de4 17.Qb3 Kh8 18.Ng5+=) 17.Bd7 Bd7=+) 14...Bh6 (14...fe4 15.de4 Rd8 16.0–0=) 15.0–0 (15.ed5 cd5 16.0–0 Nhf6=) 15...fe4 16.de4 d4 (16...Nhf6 17.ed5 cd5 18.c6 bc6 19.Qc6 Qc6 20.Rc6=) 17.Qb3 (17.Rfd1 Rf8=) 17...Kh8 18.Nc4 (18.Qd3 b6=) 18...Ndf6 (better is 18...Bc1 19.Bc1 Nhf6=+) 19.Nd6+= Re7 (19...Be6 20.Ne8 Re8 21.Qd3 Bc1 22.Bc1=) 20.Ne5 (20.Rcd1!? Bg4 21.h3+=) 20...Re5= 21.Nf7 Kg7 22.Nh6 Kh6 (22...Ne4? 23.Bd4 Nhf6 24.Ng8+–) 23.Bd4 Re7 (23...Re4 24.Be4 Ne4 25.Qe3 Ng5 26.h4+–) 24.e5 (24.Qe3 Kg7=) 24...Nd5 (24...Ng4 25.Qg8 Rb8 26.Bc3–/+) 25.Bd5 cd5 26.Qe3 (better is 26.Qd5!? Be6 27.Qe4+=) 26...Kg7–/+ 27.e6 (better is 27.f4!? Bh3 28.Rfe1=+) 27...Kg8–+ 28.Be5 Qc6 29.b5 (29.Qg5 Re6 30.Rcd1 Re8–+) 29...Qe6 (29...Qb5 30.Qg5 Re6 31.Qd8 Re8 32.Qd5 Be6 33.Qe4–+) 30.f4 (30.Rfe1 Qf7–+) 30...Qg4 (30...a6 31.ba6 Ra6 32.Rce1–+) 31.Kh1 Bf5–+ (32.Rfe1 Be4 33.Kg1 a6–+) 0–1. Zuccotti,Eduardo (2245) – Markeluk,Sergio (2320), Mar del Plata op, 1988.

7.Be2 a5 8.Nc3 =.

7.Be2 Bg7 8.Nbd2 (8.c4 dc4 9.dc4 Qd1 10.Bd1 e4+=) 8...0–0 (8...a5 9.c4=) 9.0–0 Re8 (9...e4 10.de4 de4 11.Nd4=) 10.Rc1 (10.c4 a5=) 10...b6 (10...a5 11.b5=) 11.c4 c6 (11...a5 12.ba5 Ra5 13.cd5 Rd5 14.Qc2=) 12.Nb3 (12.cd5 cd5 13.d4 e4+=) 12...Bb7 (12...c5 13.bc5 Nc5 14.cd5=) 13.Qc2 White prepares the advance c5 (13.c5 Qe6=) 13...Rac8 (13...dc4 14.Qc4 Nd5 15.Qh4=) 14.c5 bc5 (14...Qe6 15.a4+=) 15.Nc5 Nc5 16.Qc5 Qb8 (16...Qc5 17.Rc5 e4 18.Ne5+=) 17.d4 Nd7 18.Qc2 e4 19.Nd2 f5 20.Nb3 f4 (20...Rf8 21.Qc3+=) 21.Nc5 (21.Bg4 Rc7+/–) 21...Nf6 (21...Nc5 22.dc5 Bb2 23.Qb2+=) 22.Nb7 (22.ef4 Ba8+/–) 22...Qb7 23.ef4 Qc7 (23...Bh6 24.g3+/–) 24.g3 (24.Ba6 Rcd8+/–) 24...Qd7 (24...Qb6 25.Rfe1+/–) 25.Kg2 (25.f3 e3+/–) 25...h5 (25...Qb7 26.f3+/–) 26.Ba6 (26.f3 h4+/–) 26...Rc7 27.Qc5 (27.Bb5 Re6+/–) 27...h4 28.b5 (28.Rfe1 Qf5+/–) 28...h3 (28...Qg4!? 29.Qc3 cb5+=) 29.Kg1+/– Ng4? Black intends e3 (better is 29...Re6!?+/–) 30.bc6+– Qe6 Black prepares the advance e3 31.Be2 (better is 31.Rfe1+–) 31...e3? (better is 31...Nh6+–) 32.Bg4 ef2 33.Kf2 (33.Rf2 Qg4 34.Qd5 Kh7+–) 33...Qg4 (33...Qe3) 34.Qd5+– Kh7 35.Qf3 Qc8 36.g4 Kg8 (36...Qb8 37.Ba1 Qb6 38.Qh3 Kg8+–) 37.d5 (better is 37.Ba1+–) 37...Bb2+/– 38.Rc2?? (better is 38.d6 Bd4 39.Kg3+/–) 38...Bd4–+ (38...Bd4 39.Kg3 Re3–+) 0–1. mic (2225) – diggitus (2315), net–chess.com, 2007.

5.e3 a5

6.ba5 e4 7.Nd4 Qg6 (7...Ra5 8.Nc3=) 8.Nb5 Kd8 9.Bc3 (9.d3 ed3 10.Qd3 Ra5 11.Qg6 hg6+=) 9...Nc5= 10.Bb4 Bg4 11.Qc1 Be7 12.Qb2 c6 (12...Bf6 13.N1c3 Na4 14.Qb3 Nc3 15.Bc3+=) 13.Nd4+= Bc8 14.Qc3 Nd7 15.Be7 Ne7 16.Ra2 c5 17.Nb3 c4 18.Nd4 Nc5 19.Qb4 Na6 (19...Ne6 20.Qb6 Ke8 21.Ne6 Qe6 22.d3+=) 20.Qb6 Qb6 21.ab6 Nc5 22.Rb2 Na4 23.Rb4 Ra6 24.d3 cd3 25.cd3 Rb6 26.Rb6 Nb6 27.Nc3 Nf5 28.Ndb5 Ke7 (28...Re8 29.a4 Bd7 30.de4 de4 31.a5=) 29.Kd2 (29.de4 de4 30.Ne4 Bd7+=) 29...Bd7 30.de4 de4 31.Ne4 Ra8 32.Nec3 Bc6 (32...Bb5 33.Bb5 Ra3 34.Bd3=) 33.Kc2 Na4 34.Na4 Ra4 35.Kb3 Ra8 (35...Rg4 36.h3 Rg6 37.Rg1+=) 36.Rg1+/– Rd8 37.g4 Nh4 38.Be2 Bf3 39.Bf3 Nf3 40.Rg2 Ne1 41.Rg3 White fights for the Initiative 41...Rd2 42.Rh3 h6 43.f4 Rg2 44.Nd4 Rg4 45.Rh5 Ng2 46.Rb5 Kf8 (46...g6 47.Rb7 Kf8 48.Nc2+=) 47.Nf5+/– (worse is 47.Rb7 Ne3 48.Nc6 Kg8=) 47...g6 48.h3 (48.Nh6?! Rh4 49.Nf7 Kf7 50.Rb7 Kf6 51.Rb6 Kf5 52.Rb5 Ke4 53.Re5 Kf3=) 48...gf5 49.hg4 fg4 50.Kc4 (50.Kc4 Ne3 51.Kd3+/–) 1–0. Krasny,Henryk Jan – Deneuville,Christian, corr SOK–98–131, 1999.

6.b5 c5 (6...Ngf6 7.c4+=) 7.c4 (7.d4 cd4 8.ed4 e4=) 7...e4+= 8.Ng1 dc4 9.Bc4 (9.Qc2 Ngf6+=) 9...Ne5 (9...Nb6 10.Be2+=) 10.Be5= Qe5 11.Nc3 Nf6 12.h3 (12.Nge2 Bd6+=) 12...Bd6+= 13.Nge2 0–0 14.d4 ed3 15.Qd3 Bf5 16.Qd1 Rad8 17.Qb3 (17.Rc1 b6+=) 17...Ne4 (17...Be4 18.f4 Qe7 19.0–0+=) 18.Rc1 Bb8 (18...Rd7 19.b6+=) 19.Ne4 Be4 20.f3 Bg6 21.Qc3 (21.e4 b6+=) 21...Qe7 22.Kf2 (22.0–0 Be5 23.Qb3 Rd2+=) 22...Rfe8 (better is 22...Be5 23.Qa5 Bb2–/+) 23.h4?? (better is 23.Nf4 Bf5 24.b6–/+) 23...Rd3!–+ 24.Bd3 Theme: Interference (24.Qd3 Bd3) 24...Qe3 A double attack. 25.Kf1 (25.Ke1 Bd3 26.Qd2 Bg3 27.Kd1 Be2 28.Kc2–+) 25...Bd3 (25...Bd3 26.Qe5 Be2 27.Ke1 Be5 28.Rh3 Bb5 29.Kd1 Qe2; 25...Qd3?! 26.Qb2 Bf4 27.Re1–+) 0–1. Frosinos,Ioannis – Pandavos,Panayotis (2370), Korinthos op 1st, 1997.

6.Nc3 ab4 7.Nb5 Qb6 8.ab4 Ra1 9.Qa1 Bb4 (9...f6=) 10.Be5 (10.Ne5?! f6=) 10...Ngf6 11.Bc7 +–.

6.b5 e4

7.Nd4 Qg6

8.Nc3 Ngf6 =.

8.d3 Nc5 9.Nc3 Nf6 10.Qd2 ed3 11.cd3 Bd6 12.f4 (12.h4 0–0+=) 12...0–0 13.Be2 (13.g3 Re8+=) 13...Bg4 (13...Qg2 14.Bf3 Qg6 15.0–0–0–/+) 14.Rd1+= Be2 15.Qe2 Bf4 16.0–0 Bd6 (16...Bg5 17.Nf5 Rfe8 18.Qf3+=) 17.Nf5 Rfe8 18.Qf3 (18.b6 Ng4 19.Nd5 Bh2 (worse is 19...Nh2 20.Bg7 Re6 21.Rf4+/–) 20.Kh1 Bd6=) 18...Rad8+= 19.Ng7 (better is 19.h3 Bf8 20.Ne2+=) 19...Qh6?? (better is 19...Qg7 20.Nd5 Bh2 21.Kh2 Qh6 22.Kg1 Rd5 23.Bf6 Qe3 24.Rf2 Qf3 (24...Nd3? 25.Qg4 Rg5 26.Qg5 Qg5 27.Bg5 Nf2 28.Kf2+–; 24...Rd3?? 25.Qg4 Qg5 26.Qg5 Kf8 27.Qg7) 25.Rf3 Ne4–/+) 20.Ne8+– Bh2 21.Kf2 Re8 22.Ke2 Re7 23.Na4 Ncd7 24.Rh1 (24.Nc5 b6 25.Nd7 Nd7+–) 24...Qh4? (24...Qg5 25.Rdf1+=) 25.g4 (25.g3 Qg5 26.Kd2 Ng4+–) 25...Ng4 (better is 25...Qg5!? 26.b6 cb6 27.Nb6 Bf4=) 26.Rdg1+– h5 27.Kd2 (better is 27.Bd4!? c6 28.Rg2+–) 27...Kf8+= 28.Bd4 Nde5? (28...Qg5 29.Rf1 Be5 30.Be5 Qe5+=) 29.Qd5?? (better is 29.Qf5 Re6 30.Nc5+/–) 29...Rd7 (29...Qf2 30.Kc3 Bg1 31.Qd8 Re8 32.Bc5 Kg7 33.Qe8 Qe1 34.Kc2 Qe2 35.Kb3 Qd3 36.Nc3 a4 37.Ka4 Qc2 38.Kb4 Nd3 39.Kc4 Nge5 40.Qe5 Ne5 41.Kd5 Qg2 42.Ke5 Qh1–+) 30.Qe4?? (better is 30.Qb7 Qf2 31.Kc3 Bg1 32.Qc8 Ke7 33.Bc5 Ke6 34.Qe8 Kf6 35.Qh8 Kg6 36.Qg8 Kf6 37.Qh8 Ke6 38.Qe8 Kf6 39.Qh8=) 30...Ng6?? (better is 30...Qf2 31.Kc3 Bg1 32.Rh5 Qe1 33.Kb3 Rd4 34.Qd4 Qd1 (34...Qe3?! 35.Qd8 Kg7 36.Rg5 Kh6 37.Rg4 Ng4 38.Qh4 Kg7 39.Qg4 Kf6 40.Qh4 Kf5 41.Nc3–/+) 35.Ka2 Qd3 (35...Be3?! 36.Qd8 Kg7 37.Qh8 Kg6 38.Qh7 Kf6 39.Qh8 Ke7 40.Re5 Ne5 41.Qe5 Kd7 42.Qd5 Kc8 43.Qf7 Qd2 44.Nb2=; 35...Nd3?? 36.Qd8 Kg7 37.Qg5 Kf8 38.Rh8) 36.Qd3 Nd3–+) 31.Rh2?? (better is 31.Rf1 Ne3 32.Bc5 (32.Ke3 Qg5 33.Kf3 Re7–+; 32.Qe3?! Qd4 33.Rh2 Qa4+/–) 32...Kg7 33.Ke3 (33.Qe3?! Bf4 34.Rh4 Be3 35.Be3 Nh4+–) 33...Qg5 34.Ke2+–) 31...Qg5?? (31...Qh2 32.Rg2 Rd4 33.ed4 Qd6+=) 32.Rh5 (32.b6!? c6+–) 32...Qh5 33.Qg4 (33.Rg4 f5 34.Qe6 fg4 35.Qd7 Ne7+–) 33...Qb5 (33...Qg4 34.Rg4 Rd5 35.b6 cb6 36.Nb6+–) 34.Nc5 Rd8 (34...Rd4 35.Qd4 Ke7+–) 35.Qf5 Qc6 36.Qf2 (36.Qf2 b6 37.Ne4+–; better is 36.Rf1 Qg2 37.Ke1 Qf1 38.Kf1 Rd4 39.Ne6 Ke7 40.Nd4+–) 1–0. Jaracz,Pawel (2435) – Motylev,Alexander (2510), Swidnica op Poland, 1999.

8.d3 Ngf6 9.Ne2 Bd6 10.de4 de4 11.Nd2 Nb6 12.Ng3 (12.Bf6 gf6 (< 12...Qf6 13.Ne4 Qe7 14.Nd6 cd6 15.Qd4+/–) 13.Nf4 Bf4 14.ef4 Bf5=) 12...Bg3 13.hg3 0–0 (13...Bg4 14.f3 Be6 15.Bf6 Qg3 16.Ke2 ef3 17.Nf3 gf6–/+) 14.Bf6+= gf6 15.Qh5 Re8 (15...Qh5 16.Rh5 Bg4 17.Rc5+/–) 16.Be2 (16.Qc5!?+/–) 16...Re5 17.Qh4 Bf5 18.Qf4 Qg5 19.Rh5 Qf4 20.gf4 Rd5 21.g4?? (better is 21.c4 Rd2 22.Kd2 (22.Rf5?! Rc2+=) 22...Rd8 23.Kc2+–) 21...Rad8+= 22.Rd1 Bc8? (22...Bg6 23.Rd5 Nd5+–) 23.Rd5+– (23.Ne4 Rd1 24.Bd1 Rd1 25.Kd1 Bg4 26.Ke1 Bh5 27.Nf6 Kh8 28.Nh5 a4=+) 23...Rd5 24.Ne4 Rd1 25.Kd1 Kg7 26.Ng3 Bd7 27.Nh5 Kg6 28.Bd3 f5 29.Ng3 Nd5 30.Nf5 Nc3 31.Kc1 (31.Kd2 Nb1 32.Ke1 Bf5 33.Bf5 (33.gf5?! Kg7+=) 33...Kg7 34.a4+–) 31...Kf6? (better is 31...Bb5 32.f3 Bd3 33.Nh4 Kg7 34.cd3 b5+/–) 32.g5 Ke6 33.Nd4 (33...Kd6 34.f5+–; 33.e4!? Bc8+–) 1–0. Krzewski – Charchalis, Olsztyn, 1994.

8.d3 Ngf6 9.de4 de4 10.Nc3 Bd6 =+.

8.d3 Ngf6 9.de4 de4 10.Nd2 =.

8.d3 Ngf6 9.g3 Ne5 10.de4 de4 11.Bg2 (11.h3 Bc5–/+) 11...Bg4 12.f3 ef3 13.Nf3 Rd8 14.Bd4 Bd6 (14...Qe4 15.0–0 Bf3 16.Bf3 Nf3 17.Rf3=+) 15.0–0 Qh5 16.Qe2 (16.Nc3 0–0=+) 16...0–0 (16...Ne4 17.c4–/+) 17.Nbd2=+ Rfe8 18.c4 b6 19.Qf2 Be6 Black gets in control 20.Qe2 Bf5 21.e4 (21.Qd1 Bd3 22.Re1 Nc4 23.Bf6 gf6 24.Nc4 Bc4–/+) 21...Ned7–/+ 22.Rfe1 Bc5 23.Bc5 Nc5 The pressure on the isolated pawn grows 24.Nh4 Bg4 25.Qe3 Rd3 26.Qf4 Ne6 27.Qf2 Nd4 28.e5 (28.Ra2 Ne2 29.Kh1 Nc3–/+) 28...Re5 29.Re5 Qe5 30.Re1 (30.Ra2 Qh5–+) 30...Ne2 31.Kf1 Rd2 32.Nf3 Ng3 (33.Qg3 Qg3 34.hg3 Rd3–+) 0–1. Becker,A (1910) – Roos,Daniel (2380), Orange op, 1990.

8.f4 Be7 9.d3 (9.Qe2 Nb6+=) 9...Nc5 10.Nc3 Nf6 11.Qd2 a4 (11...0–0 12.Rd1–/+) 12.0–0–0 Bg4 (12...0–0 13.Qf2+=) 13.Re1 Bd7 14.Rg1 h5 (14...c6 15.Be2–/+) 15.g3 ed3 (15...c6 16.Kb1+=) 16.Bd3= Nfe4 17.Ne4 (17.Nd5? Qd6 18.Nc7 Qc7 19.Be4 Ne4–+) 17...Nd3 18.Qd3 (18.cd3 de4 19.de4 Qe4=) 18...Qe4+= 19.Kd2 0–0 20.Rb1 Rfd8 21.Qe4 de4 22.c4 c5 23.bc6 bc6 24.Rgc1 (24.Kc1 Ra5 25.Rg2 Ra7–/+) 24...c5–+ 25.Ne2 Bg4 26.Ke1 Rd3 27.Nc3 Re3 28.Kf2 Rf3 29.Kg2 Re3 (29...Rd3 30.Nd5 Bd6 31.Kf1–+) 30.Nd5 (30.Kf2 Rd3 31.Ne4–/+) 30...Bf3?? (better is 30...Re2 31.Kg1 Bd6–/+) 31.Kg1 (better is 31.Kf1 Re2 32.Ne7 Kh7 33.Re1 Rh2 34.Bc3 Rh1 35.Kf2 Rh2 36.Ke3=) 31...Bd8?? (better is 31...Re2 32.Ne7 Kh7=) 32.Bc3 (32.Ne3 h4+–) 32...Ba5?? (better is 32...Re2 33.Rb2 Rb2 34.Bb2 Rb8–+) 33.Ba5 (33.Ne3 Bd8+–) 33...Ra5?? (better is 33...Ra3 34.Bb6 Ra2+=) 34.Rb8 Kh7 35.f5 Ra7 36.f6 Ra3–+ 37.Re8 Ra6 38.Re7 Kg6 39.fg7 Kg7 40.Rc7 Rb3 41.Rc5 a3 42.Rb5 Rb2 43.Ne3 Be2 44.h4 Rb5 45.cb5 Bb5 46.Ra1 Bd3 0–1. Kaps,Darja (2235) – Paehtz,Elisabeth (2450), Beograd SER, 2013.

6.b5 Ngf6=+

7.c4 e4 8.Nd4 dc4 9.Bc4 Qc5 10.d3 A) 10...Nb6 A1) 11.Nd2 Nc4 (11...Qg5 12.Rg1 Nc4 13.Nc4 Bg4 14.f3 Qh4 15.Kd2 ef3 16.Nf3 Qh6=) 12.Nc4 Qg5 13.Rg1 Bg4 14.Qc2 ed3 15.Qd3 Be7 16.Bc3 a4+=; A2) 11.Qc2 Nc4 (11...Qg5 12.g3 Nc4 13.dc4 Be7 14.Nd2 Qg6 15.f3 ef3 16.Qg6 hg6+=) 12.dc4 Qg5 13.Ne2 Qg2 14.Rg1 Qh2 15.Bf6 gf6 16.Qe4 Qe5+=; A3) 11.Bb3 ed3 (11...a4 12.Bc2 Qg5 13.g3 Bg4 14.Qd2 Bc5 15.de4 Nc4 16.Qc1 Rd8=; 11...Qg5 12.g3 a4 13.Bc2 Bg4 14.Qd2 Bc5 15.de4 Nc4 16.Qc1 Rd8=) 12.Qd3 a4 13.Bc2 Nc4 14.Bc3 Ne5 15.Qd1 Nd5 16.Bb2 Bg4=; A4) 11.Ba2 ed3 (11...Qg5 12.g3 ed3 13.Qd3 Na4 14.Qb3 Qd5 15.Qd5 Nd5 16.Bd5 Nb2+=) 12.Qd3 Qg5 13.Qf1 Bd6 14.Nd2 0–0 15.N4f3 Qh6 16.Qd3 Rd8=; B) 10...Qg5 11.Kf1 (11.g3 Ne5 12.Qc2 ed3 13.Bd3 Nd3 14.Qd3 Bd6 15.Nd2 0–0 16.Rd1 Rd8+=; 11.0–0 Ne5 12.Kh1 Nc4 13.dc4 Qh6 14.Qd2 Bd6 15.f4 ef3 16.gf3 0–0+=) 11...Ne5 12.Nd2 Nc4 13.Nc4 Bg4 14.f3 ef3 15.Nf3 Qb5 16.Bf6 gf6=.

7.c4 e4 8.Nd4 dc4 9.Bc4 Qc5 10.Be2 Bd6 (10...Qg5 11.0–0 Bd6 (11...Nc5 12.f4 Qg6 13.Bc4 Bd6 14.Nc3 0–0 15.Qe1 Nd3 16.Bd3 ed3+=) 12.Nc3 Nc5 13.f4 Qg6 14.Qc2 0–0 15.Bc4 Rd8 16.Kh1 Bg4+=; 10...Ne5 A) 11.0–0 Be7 (11...Nd3 12.Bd3 ed3 13.Qb3 Bd6 14.Qd3 0–0 15.Nc3 Rd8 16.f4 Qh5+/–; 11...Bd6 12.Nb3 Qa7 13.Bd4 Qb8 14.Nc3 Bf5 15.Nc5 0–0 16.Qc2 Re8+=) 12.d3 ed3 13.Bd3 0–0 14.Be2 Rd8 15.Nd2 Bg4 16.Bg4 Neg4=; B) 11.f3 ef3 (11...Nd3 12.Bd3 ed3 13.Qb3 Bd6 14.Qd3 Qh5 15.Ne2 Qg5 16.Bf6 Qf6+=) 12.gf3 Bd6 13.f4 Nc4 14.Bc4 Qc4 15.Rg1 Rg8 16.d3 Qc5=; C) 11.Bc3 Nd3 (11...Bd6 12.Bb4 Qb6 13.Bd6 Qd6 14.Nc3 Bd7 15.Qc2 c5 16.bc6 Bc6+=) 12.Bd3 ed3 13.0–0 Bd6 14.a4 Bg4 15.Qc1 Qh5 16.f4 Qg6+=; D) 11.Nc3 Nd3 12.Bd3 ed3 13.Rc1 Be7 14.Qf3 Qg5 15.Ne4 Qg6 16.Nf6 Bf6+/–) 11.Nc3 (11.d3 ed3 (11...Qg5 12.de4 Qg2 13.Bf3 Qg6 14.Nf5 Be5 15.Nc3 h6 16.Rc1 a4+=; 11...0–0 12.de4 Ne4 13.Nd2 Nc3 14.Qc2 Ne2 15.Qc5 Nc5 16.Ke2 Na4=) 12.Qd3 0–0 13.0–0 Rd8 14.Rd1 Qe5 15.g3 Nc5 16.Qc2 Qg5=) 11...Qg5 (11...0–0 12.d3 ed3 13.Qd3 Qg5 14.0–0 Nc5 15.f4 Qh4 16.Qd2 Re8=) 12.0–0 0–0 (12...Nc5 13.f3 Qh6 14.f4 0–0 15.Qe1 a4 16.Qg3 Re8=) 13.f4 (13.Qc2 Nc5 14.f3 Qh6 15.g3 ef3 16.Rf3 Ng4=) 13...ef3 (13...Qg6 14.d3 Re8 15.Ne4 Ne4 16.Bh5 Qf6=) 14.Nf3 Qh6 15.Qa4 (15.Qc2 Ne5 16.h3 Re8=) 15...Nc5 (15...Rd8 16.Rac1 Ne5=) 16.Qh4 Qg6 (16...Qh4=) 17.Ng5 h6 18.Nh3 (18.Nf3 Nd3 19.Bd3 Qd3=) 18...Qc2 (18...Nb3 19.Rad1 Qc2 20.Rf6 Qb2 21.Rf2–/+) 19.Rf6 (19.Bc1!?=) 19...gf6–/+ (worse is 19...Qb2 20.Ra2 Qa2 21.Na2 gf6 22.d4+/–) 20.Nd1 Bh3 21.Qh3 Qg6 22.Nf2 f5 23.Rf1 Rad8 24.e4 Qe6?? 25.Qc3 f6?? 26.Bc4+– Be5 27.Be6 Ne6 28.Qb3 Bb2 29.Qb2 fe4 30.Ne4 f5 31.Nf6 (31.Nf6 Kf7 32.Nh7+–) 1–0. Tolmacheva,E (1915) – Vorobyova,A (2005), ch–Siberia Women, 2011.

7.c4 e4 8.Nd4 dc4 9.Bc4 Ne5 10.Be2 Bd7 (10...Be7 11.Nc3=) 11.a4 (11.0–0 Neg4 12.f4 c5 13.bc6 bc6+=) 11...Nd5 (11...0–0–0 12.Nc3=) 12.f4 (12.0–0 Be7=) 12...Nd3 13.Bd3 ed3 14.Na3 (14.Qf3 c5 15.Qe4 Ne7=) 14...Qb4 15.Qc1 (15.Ra2=+) 15...Ne3 (15...Nb6!? 16.Bc3 Qa4–/+) 16.Bc3= Ng2 17.Kf2 Qd6 18.Kg2 Be7 (18...Qf4 19.Qe1 Kd8 20.Qg3 Qg3 21.hg3+=) 19.Qe1 (19.Rf1 Qg6 20.Kf3 0–0=) 19...0–0 (19...Qf4!? 20.Rf1 Qg5 21.Qg3 h6=) 20.Qg3 (20.Qe4 c5 21.Nf5 Bf5 22.Qf5 g6+/–) 20...Bf6= 21.Nf3 (< 21.Qd3 c5 22.Nc4 Qd5 23.Kg3 cd4–+) 21...Bc3 22.dc3 Rfe8 (22...Be6 23.Rhg1 Rad8 24.Kf1+=) 23.Ne5 c5? (better is 23...Qd5 24.Qf3 Bh3 25.Kg3 Qf3 26.Kf3 Rad8+=) 24.bc6?? (better is 24.Qd3 Qd3 25.Nd3+–) 24...Bc6–/+ 25.Nc6 bc6 (25...Qc6 26.Qf3 Qc3 27.Rhd1–/+) 26.Qf3 (better is 26.Rhd1!? d2 27.Nc2=) 26...Re2–/+ 27.Kg3? (better is 27.Kf1–/+) 27...Qg6 28.Kh3 Ra6 (28...Rd8!? 29.Rag1 Qe6 30.Qg4 Qf6=+) 29.f5= Qg5 (30.Rag1 Qh6 31.Kg4 Rh2+/–; 29...Qh6 30.Kg4 Re3 31.Rae1 Re1 32.Re1+/–). Stabenow,Juergen – Stark, corr DDR, 1977.

7.Be2 Be7 =+.

6.Nc3 c6

7.b5 Ngf6 8.a4 c5 9.d3 (9.Be2 Be7=+) 9...b6 (9...Be7 10.Be2=+) 10.Ne2 (10.Be2 Be7=+) 10...Bb7 (10...Qe6 11.c4=+) 11.g3 (11.d4 cd4 12.ed4 e4=+) 11...Be7=+ 12.Bg2 (12.d4 e4 13.dc5 Nc5=+) 12...0–0 13.0–0 Rfe8 14.d4 (14.Nh4 Qe6=+) 14...ed4 (14...cd4 15.ed4 e4 16.Ne5–/+) 15.ed4=+ Ne4 (15...Rac8 16.dc5 Qc5 17.Nfd4=) 16.Ne5 (16.dc5 Ndc5 17.Be5 Qd7=) 16...Ne5=+ 17.de5 Qc7 (17...Qh6 18.Nf4 Rad8 19.f3=+) 18.Be4 (18.f3!? Ng5 19.f4=+) 18...de4–/+ Black gets strong play along the open d–file 19.c4 Rad8 20.Qc2 Rd7 21.Rad1 Red8 (21...Bg5 22.Rd7 Qd7 23.Rd1–/+) 22.Rd7 (22.Nf4 Qc8=+) 22...Qd7–/+ Black gets in control 23.Nc3 Qd2 (23...Qd3 24.Qd3 ed3 25.f4–/+) 24.Qd2 Rd2 25.Rd1? (better is 25.Ba1!?–/+) 25...e3–+ (25...Rb2?! 26.Rd7 Rc2 27.Re7=) 26.fe3 (26.Rd2 ed2 27.f4 Bf3–+) 26...Rg2 (26...Rb2?! 27.Rd7 Rg2 28.Kf1=) 27.Kf1 Rb2 28.e4 (28.Rd7 Bg2 29.Ke1 Kf8–+) 28...Kf8 (28...Rh2?! 29.Rd7 Bc8 30.Re7=) 29.Rd7 Bc8 30.Ra7 Bh3 31.Ke1 Bd8 32.Ra8 Ke8 33.Nd5 Rh2 34.Nb6 Rg2 35.Rb8 (35.Nd5 Rg3 36.b6 Rb3–+) 35...Rg3 36.Nd5 Ra3 37.b6 Rb3 (37...Ra1 38.Kd2 Ra2 39.Kc1=) 38.Nc7 (38.Ra8 Bg2 39.Ra5 Bb6 40.Nb6 Rb6 41.Rc5 Be4–+) 38...Kd7 39.Nb5 Rb1 40.Kd2 (40.Kf2 Bh4 41.Ke3 Bg5 42.Kf2 Be6–+) 40...Bg5 41.Kc2 Rc1 (42.Kb2 Rc4–+; 41...Rb4 42.Rf8 Rc4 43.Nc3–+) 0–1. Moller Nielsen,Peter – Kuhlmann,AEJ, corr ICCF TT–4–90 semi, 1994.

7.b5 Ngf6 8.Be2 Qc7 9.0–0 Bd6 10.d3 0–0 11.h3 Nc5 12.d4 ed4 13.Nd4 a4 14.Nf3 (14.Rb1 Bd7=+) 14...Bf5 15.Bd3 Nfe4 16.Nd4 Nd3 17.cd3 Nc3 18.Bc3 Bg6 19.bc6 bc6 20.f4 Qe7 21.Rf3 (21.Qd2 c5 (< 21...Ba3 22.f5+–) 22.Nb5 f6=) 21...f6–/+ (< 21...Ba3 22.f5 Bh5 23.g4+–) 22.f5 Bh5 23.g4 Bf7 24.Qc2 Rfc8 25.Bb2 Rab8 26.Ne2 (26.Bc3 c5 27.Ne6 Rb3–+) 26...c5 27.Qd2 d4 28.e4 Qb7 29.Bc1 c4 30.dc4 (better is 30.g5–+) 30...Be5 31.Nf4 (31.Rf2 Qe4 32.Rf4 Bf4 33.Nf4 Rc4–+) 0–1. Hjortstam,Kurt – Kaniak,Andrzej, email 4AMM–F, 1998.

5.e3 c6

6.c4 a6 7.Nc3 Ngf6 8.cd5 cd5 (--> 5.e3 Ngf6 6.c4 c6 7.cd5 cd5 8.Nc3 a6).

6.c4 dc4 7.Bc4 b5 8.Ba2 Be7 (8...e4 9.Ng5 Nh6 10.Ne4+/–) 9.Qb3 Nh6 10.Nc3 a5 11.0–0 a4 12.Qc2 f5 (12...0–0 13.d4+=) 13.e4 (13.d4 e4 14.Nd2 Ng4=+) 13...f4 (13...Nf6 14.Rae1+=) 14.d4 (14.Rac1 Nf7+/–) 14...Bf6 (14...ed4 15.Rad1 Bf6 16.Qd2+=) 15.Rad1 Qb8 (better is 15...ed4 16.Qd2 d3+=) 16.de5 Be5 17.Ne5 (17.Nb5 cb5 18.Ne5 Nf6+–) 17...Ne5 18.Na4?? (18.Ne2 Bg4+–) 18...Nhf7?? (18...Ra4 19.Be5 Qe5 20.Qc6 Ke7+–) 19.Bf7 Kf7 20.Be5 (20.Nc5!?+–) 20...Qe5+/– 21.Nb6 Ra3 22.Qc6 Be6 23.Nd7 Qg5 24.Qc7 (24.Nc5 Bg4+–) 24...Re8+/– 25.Nc5 Qe7 (25...Kf8 26.Qd6 Kf7 27.Rd3 Rd3 28.Qd3=+) 26.Ne6 (26.Qf4!? Qf6 27.Ne6 Re6 28.Rd7 Re7 29.Re7 Ke7 30.Qc7 Kf8 31.Qb8 Ke7 32.Qb5 Ra2+–) 26...Ke6+/– 27.Qc6 (27...Kf7 28.Rd7+– (28.Qb5?! Qe4 29.Rd7 Kg8+/–)) 1–0. Pimmingstorfer,Christian – Kirsch,Michael, NRW–Liga II, 1989.

6.c4 Ngf6 (--> 5.e3 Ngf6 6.c4 c6).

6.c4 g6 (--> 5.e3 g6 6.c4 c6).

6.Be2 e4 7.Nd4 Qg6 8.0–0 h5 9.f3 Ngf6 10.fe4 Ne4 11.d3 Ng5 12.c4 Bd6 13.cd5 Ne5 (13...cd5 14.Nf5 Be5 15.Qb3+/–) 14.dc6 Bh3?? (better is 14...Ng4 15.Qa4 Bh2 16.Kh1 b6+/–) 15.cb7+– Bg2 (15...Rb8 16.gh3 Nh3 17.Kh1 Rb7 18.Qa4 Rd7 19.Nf5+–) 16.Qa4 Bc6 (16...Kd8 17.Qa5 Ke8 18.Qb5 Kd8 19.ba8R Ba8+–) 17.ba8Q Ke7 18.Q4a7 Bd7 19.Qh8 Nd3 20.Nc6 Ke6 21.Nd8 (21.Qe8! Be8 22.Nd8 Kd5 23.Qd4) 21...Ke7+– 22.Bf6 gf6 23.Nc6 Ke6 24.Qe8! Be8 (24...Be8 25.Nd8 Mate attack) 25.Nd8 Ke5 26.Qd4 1–0. Wall,Bill – Meniscus, chess.com, 2009.

6.Be2 Be7 7.c4 Ngf6 8.cd5 cd5 9.0–0 0–0 10.Qc2 Re8 (10...a5 11.ba5 Re8 12.Nc3 Ra5 13.Rfb1+=) 11.Nh4 (11.Nc3 Qb8=) 11...g6 (11...Qe6 12.Nf5=) 12.Nc3 a6 13.Nf3 Bf8 14.Rac1 Bg7 15.d3 (15.d4 e4 16.Nd2 Nb6=) 15...b5 16.Nb1 Qe7 17.Qc7 e4 18.Nd4 Ne5 19.Qe7 Re7 20.Nc6 Nc6 21.Rc6 ed3 22.Bd3 (< 22.Bf6 Bf6 23.Bd3 Kg7=+) 22...Ne4 23.Bg7 Kg7 24.Rd1 Bb7 25.Rc2 Rc8 26.Rc8 Bc8 27.f3 (27.Bc2 Rc7 28.Bb3 Be6=) 27...Nf6 28.Kf2 Rc7 29.Ke1 Be6 30.Kd2 Nd7 31.Nc3 Ne5 32.Ra1 ½–½. marekt – Immortale_SdM, ChessWorld.net, 2004.

6.c4 e4

7.c5 Qc7 8.Nd4 b6 9.Nb3 (9.cb6 ab6 10.Qc2 c5=) 9...Ngf6 10.d4 ed3 11.cb6 ab6 12.Bd3 Bd6 13.f4 (13.N1d2 Ba6 14.Nf3 0–0+=) 13...Ba6 (13...0–0 14.0–0–/+) 14.Ba6 Ra6 15.0–0 c5 (15...0–0 16.Qd3 Ra7 17.b5+=) 16.bc5 (16.Nc3 cb4 17.Nd5 Nd5 18.Qd5 ba3 19.Bg7 Rg8 20.Qe4 Kd8+/–) 16...bc5+= 17.N1d2 (17.Nc3 Qb7 18.Rb1 Rb6–/+) 17...0–0 18.Qe2 (18.Qf3 Rb8+=) 18...Rfa8–/+ 19.Bf6 (19.Rfc1!?–/+) 19...Nf6–+ (worse is 19...gf6 20.Qg4 Kh8 21.Qf5+=) 20.Rfc1 (20.Nb1 c4 21.Nd4 Qe7–/+) 20...Ra3 21.Ra3 Ra3 22.Nd4 Qc8 23.Nb5 Qa6 24.Rb1 Ne4 (24...Ra1 25.Ra1 Qa1 26.Kf2–+) 25.Nd6 (25.Ne4 de4 26.Qe1 Rd3–/+) 25...Qd6 (25...Qe2?? 26.Rb8) 26.Ne4 de4 27.Qb5 Qf8 (27...Re3 28.Qe8 Qf8 29.Rb8+–) 28.Rb3 (28.Rc1 Re3 29.Qc5 Qc5 30.Rc5 g6–/+) 28...Rb3 29.Qb3 g6 (29...Qa8 30.Kf2–/+) 30.Qd5 Qe7 31.g3 (31.Kf1 h6–/+) 31...Kg7 32.Kg2 (32.h3 h5–/+) 32...f5 33.h4 Kf6 (33...Qc7 34.g4 fg4 35.Qe4–+) 34.Qc6 Kf7 35.Qd5 Kg7 36.Kf2 Qc7 37.Qe6 (37.h5 c4–+) 37...c4–+ 38.Ke2 (38.g4 Qd8 39.Kg3 Qg8 40.Qe5 Kf8 41.Qc5 Kg7 42.gf5 gf5 43.Qf5 Qe8 44.Qg5 Qg6+=) 38...c3 39.Qe5?! (39.Qa2 Qd6 40.Ke1 Qd3 41.Qa7 Kh6–+) 39...Qe5 40.fe5 Kf7 Black fights for the Initiative 41.Kd1 Ke6 42.Kc2 Ke5 43.Kc3 h6 44.Kc4 (44.Kd2–+) 44...g5 45.hg5 hg5 46.Kc3 f4 47.gf4 gf4 48.Kd2 f3 49.Ke1 Kf5 50.Kf1 Kg4 51.Kf2 Kh4 52.Kf1 f2 53.Kf2 Kh3 54.Ke1 Kg2 (54...Kg2 55.Ke2 Kg3–+) 0–1. Gross,G – Schendel,Andreas, corr BDF, 1995.

7.c5 Qc7 8.Nd4 b6 9.cb6 ab6 10.Qc2 Bb7 11.d3 ed3 12.Bd3 f6 (better is 12...Ngf6!?=) 13.Bh7 0–0–0? (better is 13...Ne7+/–) 14.Ne6+– Qd6 15.Nd8 Kd8 16.Nc3 Ne7 17.h3 (17...Ne5 18.Bd3+–) 1–0. Nemec,Zdenek – St_Jean,Benoit, b2–b4.com, 2003.

7.c5 Qc7 8.Nd4 b6 9.cb6 ab6 10.Qc2 c5 =.

7.c5 Qg6 8.Nd4 Ne5 9.Nc3 Nd3 10.Bd3 Qg2 11.Rf1 ed3 12.Qf3 Qf3 (12...Qh2!? 13.e4 Nf6 14.Qe3–/+) 13.Nf3–/+ f6 14.Rg1 Kf7 15.0–0–0 Nh6 16.Rg3 b6 17.cb6 ab6 18.Rdg1 Nf5 19.R3g2 Bb7 20.Ne1 c5 21.f3 d4 22.ed4 Nd4 (22...cd4?! 23.Ne4–/+) 23.Rf1 (23.bc5 Nf3 24.Nf3 Bf3 25.Rg3 Bc5 26.Rg7 Kf8 27.R1g3–+) 23...cb4 24.ab4 Bb4 25.Nd3 Ba6 (25...Bf3?! 26.Rf3 Bc3 27.Ne5 Ke6 28.dc3–/+) 26.Nb4 Bf1 27.Rf2 Bc4 28.d3 Be6 29.Ne4 Nb5 30.Rc2 (30.Rc2 Ra4 31.Nc6–+). Hal1958 – M71, playchess.de, 2004.

7.c5 Qg6 8.Nd4 Ne5 9.h3 Nd3–/+ 10.Bd3 Qg2 (10...ed3?! 11.Qf3+=) 11.Ke2 ed3 12.Kd3 Qf2 13.Rf1 (13.Qe2!? Qg3 14.Nc3–/+) 13...Qh4–+ 14.Qf3 Nf6 15.Nc3 Qh3 16.Qf4 Be7 17.Qe5 Qh5 18.Nf5 Bf5 19.Rf5 Qg6 20.Ne2?! (20.Ke2–+) 20...Ng4 21.Qf4 Nh6 22.Rf1 Nf5 23.Qf5 0–0 24.Qg6 fg6 (24...fg6 25.Rb1 a5–+) 0–1. Hal1958 – M71, playchess.de, 2004.

7.c5 Qg6 8.Nh4 Qg5 9.g3 Ne5 10.f4 ef3 11.Nf3 Nf3 12.Qf3 Be7 (12...Bf5 13.Qf4 Qg6 14.Nc3=) 13.Bg2 (13.h4 Qh6=) 13...Nf6 (13...Bg4 14.Qf2=) 14.0–0 h5 (14...b6 15.b5 Bg4 16.Qf4 Qf4 17.Rf4=) 15.h4 Qg6 16.Qf4 0–0 (16...Ne4 17.Kh2=) 17.Nc3 (17.Bd4 Ne4 18.Kh2 Re8=) 17...a5 18.Rac1 ab4 (18...Qd3 19.Qf2+=) 19.ab4= Be6 (19...Qd3 20.Qg5=) 20.Qc7 Rfe8 (20...Nd7 21.Ra1 Ra1 22.Ba1=) 21.Ra1 (21.Qb7 Qg3 22.Ne2 Qb8 23.Qc6 Qb4 24.Bf6 Bf6+=) 21...Rac8 22.Qf4 Qc2 23.Bc1 Bd8 24.Ra2 (24.Ra7 Bc7 25.Qg5 Bg4–/+) 24...Qh7 25.d4 (25.Ra7 Bc7 26.Qf2 Qg6+=) 25...Bc7 26.Qg5 Ne4 27.Ne4 de4 28.Ra7 f6 29.Rf6 Bd8 30.Re6 Bg5 31.Be4 Qh8 (better is 31...Be3 32.Be3 Qe4 33.Re4 Re4+=) 32.Bf5 (32.Re8 Re8 33.Rb7 Qh6 34.hg5 Qg5 35.Bc6 Rf8–+) 32...Rf8 (32...Bf6!? 33.Rb7 Red8–/+) 33.Bd3 Bf6 34.Rb7 Qh6 35.b5 (better is 35.Kg2–+) 35...Rce8?? (35...cb5 36.Rb5 Rfd8 37.Rb4–+) 36.Re8? (better is 36.Rc6 Ra8 37.Bd2–/+) 36...Re8–+ 37.Rb6 (37.Bc4 Kh8 38.Bf7 Re3 39.Be3 Qe3 40.Kf1 Bd4 41.Rb8 Kh7 42.Bg8 Kg6 43.Rf8 Bc5 44.Rf4 Qg3 45.Rf7 Qd3 46.Ke1 cb5 47.Rf4 Qe3 48.Kd1 Qf4 49.Kc2 Qe4 50.Kd1 Bb4 51.Bf7 Kf7 52.Kc1 Qg2 53.Kb1 Ba3 54.Ka1 Qb2) 37...Re3 (37...Bd4 38.Rc6 Be3 39.Kg2 Qc6 40.bc6 Bc1 41.Bf5=) 38.Bc4 (38.Kh2 Bh4 39.Bc4 Kf8 40.Rb8 Ke7 41.Rb7 Kd8 42.Rb8 Kc7–+) 38...Kh7 (38...Kf8 39.Kh2 Qh7 40.Be3 Qc2 41.Kg1 Qc4 42.Rc6 Bd4 43.Bd4 Qd4 44.Kg2 Qb2 45.Kh3 Qb5 46.Rc8 Ke7 47.Ra8–+) 39.Bd3–/+ g6 (worse is 39...Rd3 40.Bh6 Bd4 41.Kf1 gh6 42.Rc6 Rg3 43.b6=) 40.Rb7? (better is 40.Kh2–/+) 40...Kh8–+ 41.Rb8 Kg7 42.Rb7 Kf8 43.Rb8 Ke7 44.Rb7 Kd8 45.Kh2 Bh4 (45...Bh4 46.Rb8 Ke7 47.Rb7 Kf6–+) 0–1. Szabo,Almos (2300) – Gusan,Boris (2170), 1st Romanian Internet Championship Fina, 2005.

7.Nd4 dc4

8.Qc2 Qg6 9.Nc3 Ngf6 10.Nce2 Bd6 A) 11.Ng3 Ne5 12.Bc4 h5 13.Rc1 h4 14.Nge2 Nd3 15.Kf1 h3 16.g3 0–0 17.Nf4 Bf4 18.ef4; B) 11.g3 0–0 (11...Ne5 12.Nf4 Qh6 13.Bc4 g5 14.Ng2 Qh3 15.Kf1 0–0 16.Be2 Bg4 17.Bg4 Neg4 18.Kg1) 12.Nf4 Bf4 13.ef4 Nb6 14.Bg2 Nbd5 15.Kf1 a5 16.Qc4 ab4 17.ab4 Ra1 18.Ba1; C) 11.Nf4 Bf4 12.ef4–/+ Nb6 13.g3 0–0 14.h4 a5 15.Bg2 Nbd5 16.0–0 Nf4 17.h5 N4h5 18.Rae1.

8.Qc2 Qg6 9.Nc3 Ngf6 10.Nce2 Qg4 11.Nf4 A) 11...Nb6 12.Bc4 (12.Be2 Qh4 13.Bc4 Bd6 14.Bb3 0–0 15.g3 Qh6 16.d3 Re8 17.0–0 a5 18.de4) 12...Nc4 13.Qc4 Bd6 14.h3 Qh4 15.g3 Qh6 16.b5 cb5 17.Nb5 Bf4 18.gf4; B) 11...Qh4 12.Nf5 Qg4 13.Ng3 a5 14.h4 Nb6 15.Be2 Qd7 16.Bf6 gf6 17.Ne4 Qe7 18.ba5; C) 11...a5 12.Bc4 (12.b5 Ne5 13.bc6 bc6 14.Bc4 Qd7 15.Nb3 Bd6 16.Be2 0–0 17.0–0 Qe7 18.Rab1; 12.Be2 Qh4 13.b5 Ne5 14.bc6 bc6 15.Nf5 Bf5 16.Be5 Be7 17.g3 Qh6 18.Qc4; 12.ba5 Bd6 13.a6 Ne5 14.Be2 Qd7 15.ab7 Bb7 16.Bc4 Nc4 17.Qc4 0–0 18.Rb1) 12...ab4 13.ab4 Ra1 14.Ba1 Ne5 15.Be2 Qd7 16.b5 Bd6 17.bc6 bc6 18.f3; D) 11...Ne5 12.Bc4= Bd6 13.0–0 Nc4 14.Qc4 Bf4 15.ef4 0–0 16.g3 Be6 17.Ne6 Qe6 18.Qc2.

8.Qc2 Qg6 9.Nc3 Ngf6 10.Nce2 Qg4 11.Ng3 b5?? 12.a4+/– Ne5 13.ab5 Bb4 (13...Nd5 14.h3 Qh4+–) 14.Bc4+– Nc4 (14...c5 15.Nc6 Nc4 16.Qc4+–) 15.Qc4 c5 16.Nc6 Be6 (16...0–0 17.Bf6 gf6 18.h3+–) 17.Qc2 Bd5 (17...Nd5 18.0–0 0–0 19.Ne4+–) 18.Nb4 cb4 19.Qc5 Qd7? (19...Rc8 20.Qb4 Rc4 21.Qd6+–) 20.Qb4 (20.Bf6 Rc8 21.Qd4 gf6+–) 20...Rb8? (better is 20...Qe7 21.Qe7 Ke7 22.Nf5 Kd7 23.Ng7 Ne8+–) 21.Bf6 Rb5 (21...gf6 22.Nh5 Rb6+–) 22.Qd4 gf6 23.Ne4 Be4 24.Qe4 Kf8 25.Qd4 Qd4+= 26.ed4 Rb7 27.Ke2+/– Kg7 28.Rhb1 Rd7 29.Ra4 Rc8 30.Rba1 Rcc7 31.Kd3 Kg6 32.Ra5 Kg7 33.d5 Rc8 34.R1a4 Rcd8 35.Kd4 Kg6 36.Ra3+– Kg7 37.Rc3 Re8 38.Re3 Rc8 39.Ra6 Rcd8 40.Ra5 Rb8 41.Rea3 Rbd8 42.Kc4 Rc8 43.Rc5 Rb8 0–1. Chirpii,Valeria (1885) – Untila,Stela2 (2025), Cupa ULIM, Kishinev MDA, 2005.

8.Qc2 Qg6 9.Nc3 Ngf6 10.Nce2 Qg4 11.h3 Qh4 (11...Qg5 12.h4 Qg4 13.Nf4 Ne5 14.Bc4 Nc4 15.Qc4 Bd6 16.Nde2 Bf5 17.Bf6 gf6 18.b5) 12.Nc3 (12.g3 Qh6 13.Nc3 Qg6 14.Bc4 Ne5 15.Nce2 Bd6 16.Rd1 0–0 17.d3 Nd5 18.b5; 12.Ng3 g6 13.Bc4 Be7 14.0–0 Nb6 15.Be2 0–0 16.d3 ed3 17.Bd3 Nbd5 18.Nge2) 12...Ne5 13.g3 Qg5 14.Ne4 Qg6 15.Nf6 gf6 16.Rc1 Qc2 17.Rc2 a5 18.ba5.

8.Bc4!? a5 9.d3 =.

8.Bc4 Qg6 9.Ne2 (9.Bf1 Ne5=) 9...Bd6 10.Ng3 Ngf6 11.d3 (11.Qc2 Ne5=+) 11...b5–/+ 12.Ba2 (White fights for the Initiative) 12...ed3 13.Nd2 h5 (13...a5 14.Qf3 Ra6 15.Nf5–/+) 14.Qf3=+ Bb7 15.Nf5 Bc7 (better is 15...Be5!? 16.Be5 Ne5=) 16.Ne4+= d2 (16...Nd5 17.Ng7 Kd8 18.Bd5 cd5 19.Nc5 Nc5 20.bc5+=) 17.Kd2+/– (17.Nd2?! Ne5 18.Be5 Be5+=) 17...Rd8 18.Ned6 Kf8? (18...Bd6 19.Nd6 Ke7+–) 19.Kc1+– Bd6 20.Nd6 Ba8 (20...Rb8 21.Nf7 (21.Bf7?! Qg4+–) 21...Rg8 22.Rd1+–) 21.Nf7 (21.Bf7?! Qg4 22.Bb3 c5 23.Qg4 hg4+–) 21...c5 (21...Ke7 22.Rd1 Rhf8 23.Nd8 Rd8+–) 22.Nh8 (22.Nd8 Bf3 23.Ne6 Ke7–/+) 22...Qh7 (22...Qe8 23.Qg3 c4 24.Bb1+–) 23.Qg3 Qh8 (23...c4 24.Qc7 Ke7+–) 24.Qd6 (24...Ke8 25.Qe6 Kf8 26.Qf7#) 1–0. MrkT – Konstriktor, internet, 2005.

8.Nc3 Qg6=+

9.f3 ef3 10.Qf3 Ne5 –/+.

9.Qc2 Ngf6–/+

10.Bc4 Ne5 11.Be2 (11.Bf1 Bd6+=) 11...Bd6 (11...Qg2 12.Rf1–+) 12.0–0–0? (better is 12.0–0+=) 12...a5–+ 13.Na4 (better is 13.b5 c5 14.Nb3–+) 13...ab4 14.ab4 (14.Nb6 Nd3 15.Bd3 ed3–+) 14...0–0 (14...Bb4 15.Nb6 Nd3 16.Bd3 ed3 17.Qb3+=) 15.Nb6 Nd3 16.Bd3 ed3 17.Qb3 Ra6 18.Nc4 Nd5 (18...Be7 19.Ne5 Qg2 20.f3–+) 19.e4? (better is 19.Nd6 Qd6 20.Qd3 Qb4 21.e4–+) 19...Nb4–+ 20.f4 (20.Nd6 Qd6 21.Kb1 Be6 22.Ne6 A) 22...Qe6?! 23.Qc3 (23.Qb4?! Qg6=) 23...f6 24.Qb4=; B) 22...fe6–+) 20...b5 (better is 20...Bc5!? 21.f5 Qg2 22.Rde1–+) 21.Nd6 Qd6 22.Kb1 (22.f5 Qc5 23.Kb1 Re8–+) 22...c5 23.Bc3 Na2 (23...Re8 24.Rde1–+) 24.Nf5 (24.e5 Qh6 25.Nb5 Be6–+) 24...Bf5 25.Be5 (25.ef5 Rb8 26.Be5–/+) 25...Qe6 26.Qb2 (26.Qe6 Be6 (26...Re6?! 27.ef5 Ra6 28.Rde1–+; 26...fe6?! 27.ef5 ef5 28.Rhe1–+) 27.f5 f6–+) 26...Be4 27.Rhe1 Qc4 28.Re4 Qe4 (28...Qe4 29.Qb5 Rfa8–+) 0–1. Shakirianov,M – Politov,S, ch RUS tt, 1995.

10.Bc4 Qg2 11.Rf1 –/+.

10.f3 ef3 11.Qg6 hg6 12.Nf3 b5 –/+.

10.f3 ef3 11.Qg6 hg6 12.Nf3 Nb6 –/+.

10.f4 ef3 11.Qg6 hg6 12.Nf3 Nb6 13.Be2 (13.e4 c5–/+) 13...Bf5 14.Ne5 Be6 15.0–0 Rd8 16.Nf3 Bf5 17.Rae1 Bd3 18.Bd3 (18.e4 c5 (18...Be4? 19.Bd1+–) 19.b5 A) 19...Be4? 20.Bd1+– (20.Ne4?! Ne4 21.Bd1 f5=); B) 19...Be7=+) 18...cd3 19.e4 Nc4 Black fights for the Initiative 20.Bc1 (20.e5 Nd5 (20...Nb2? 21.ef6 Kd7 22.Ne5 Kc8 23.Nf7+–) 21.Ng5 Nb2 22.Nf7 Nc3 23.Nh8 Ne2 24.Kh1 Nc4–+) 20...Be7 (20...a5 21.e5 Nd5 22.Ng5 Nc3 23.dc3–+) 21.e5–/+ Nd5 22.Ne4 Nf4 23.Ng3 Bh4 24.Nh4 Rh4 25.Kh1 Rd4 26.Rf3 (26.Rf2 Ke7–+) 26...Ne6 27.Nf1 (27.b5 Rd5 28.Ne4 Re5 29.Nd6 Ke7 (29...Nd6?! 30.Re5 Nc4 31.Re1=+) 30.Nc8 Kd7 31.bc6 bc6 32.Rf7 Kc8 33.Re5 Ne5–+) 27...Rhe4 28.Ne3 Ne5 29.Rh3 Nc4 30.Rd1 Nf4 (30...Ne3 31.Re3 Re3 32.de3–+) 31.Rh8 Ke7 32.Nc4 (32.Ra8 a6–+) 32...Rc4 33.Bb2 (33.Ra8 a5 34.ba5–+) 33...Rc2 34.Bc3 (34.Ba1 Rd2! 35.Rg1 Ree2–+) 34...Nd5 (34...Rc3 35.dc3 d2 36.Kg1–+) 35.Rb8 Nc3 36.Rb7?? (36.dc3 Ke6 37.Re8 Kf5 38.Rf8–+) 36...Ke6 (better is 36...Kd6 37.dc3 d2 38.Rd2 Rd2–+) 37.dc3 d2 (38.Rf7 Kf7 39.Rf1 Rf4 40.Rf4 Kg8–/+) 0–1. Kivistoe,Mikko (2265) – Manninen,Marko (2215), Helsinki Club–ch, 1990.

8.Bc4 Ne5

9.Qc2 Qg6–/+ 10.g3 Bd6 11.0–0 (11.Bf1 Nf6–/+) 11...h5 (11...a5 12.ba5 Nc4 13.Qc4–/+) 12.Be2 h4 13.Nc3 Nf6 14.Ndb5 (14.f4 hg3 15.h4 Rh4–+) 14...Bb8 Black gets the initiative 15.Nd4 Qh7 16.g4 Neg4 17.Bg4 Ng4 18.Ne4 Nh2 19.Rfc1 Qg6 (19...Be5 20.d3–+) 20.Kh1 Ng4 21.d3 f5 22.Nc5 b6 23.Ncb3 0–1. Flazinski,Pawel – Pech,Jaroslav, corr or01–014 E–mail, 2002.

9.Be2 Nd3 10.Bd3 ed3 11.0–0 =.

9.Be2 Nf6 10.Nc3 a5 11.ba5 Ra5 12.0–0 Be7 13.Qc2 Neg4 (13...c5 14.Ndb5 Qd7 15.Ne4+–) 14.Bg4 (14.g3!?=) 14...Ng4=+ (< 14...Bg4 15.Ne4 Ne4 16.Qe4+=) 15.f4 ef3 (15...Qh6 16.h3 Nf6 17.Ne4+=) 16.Nf3 0–0 17.Ne2 (17.Ne4 Qe6=) 17...Rf5 (17...Be6 18.Ned4=+) 18.h3 Rf3 (18...Rc5 19.Qb3 Be6 20.Qb7–/+) 19.Rf3–/+ Qh2 20.Kf1 Qh1 21.Ng1 Nh2 22.Kf2 Bh4 (22...Nf3 23.Nf3 Bh4 24.Nh4+–) 23.Rg3=+ Ng4?? (better is 23...Bg3 24.Kg3 Re8=+) 24.hg4+– Qh2 25.Be5 f5 (25...Bg4 26.d3+–) 26.g5 (26.Qb3 Kh8 27.gf5 Bg3 28.Bg3 Rf5 29.Nf3 Qh6+–) 26...f4 27.Qc4?? (27.Bf4 Qg3) 27...Rf7–/+ 28.Ke2 (28.ef4 Qg3 29.Ke2 Bg4 30.Nf3 Qg2 31.Kd1 Qf3 32.Kc1 Qd1 33.Kb2 Qd2 34.Qc2 Qc2 35.Kc2–+) 28...Qg3 29.Kd3 (29.Bf4 Qf2 30.Kd3 Bf5 31.Kc3 Qg2–+) 29...Bf5 30.Kc3 Qg2 (30...Bg5!? 31.Ne2 Qg4 32.ef4–+) 31.ef4 Bf2 32.Ne2 Qf3 (32...b5 33.Qa2 Qf3 34.d3 Qd3 35.Kb4 c5 36.Ka5 Be3–+) 33.Kb2–/+ b5 34.Nd4 bc4?? (34...Qe4 35.Qc5 Rd7–+) 35.Nf3= Rb7 36.Kc3?? (36.Kc1 Kf7=) 36...Bd3 (36...Rb3 37.Kc4 Be6) 37.Nd4–+ c5 38.Nb5 Rb5 (39.Rb1 Rb1 40.Bg7 Rb3#) 0–1. Sviridov,Valentin – Freisler,Pavel (2310), Marianske Lazne op, 1989.

9.Be2 Nf6 10.d3 Nd3 11.Bd3 ed3 12.Qd3 a5 =.

9.Be2 Nf6 10.h3 Be7 11.Qc2 b6 (11...a5 12.ba5 Nd3 13.Bd3 ed3 A) worse is 14.Qd3 c5–/+ (14...Ra5?! 15.0–0+=); B) 14.Qb3+=) 12.0–0 Nd3 (12...c5 13.Nb5 Qb8 14.N5c3=) 13.Bd3 ed3 14.Qc6 (worse is 14.Qd3 c5–/+) 14...Qc6 15.Nc6 Bb7 16.Ne7 Ke7 17.Bf6 gf6 (17...Kf6!? 18.Nc3 Rhc8+=) 18.Rc1 Rac8 19.Nc3 Rhg8 20.g3 Bf3 21.Nb5 a6 22.Nd4 Bd5 23.Rc8 Rc8 24.f3 Kd6 25.Kf2 Ke5 26.g4 Be6 27.a4 Bd7 (better is 27...f5!?+/–) 28.a5+– b5 29.Ra3 Rc4 30.Rd3 Rb4 (30...f5 31.g5 Kd6+–) 31.f4 Ke4 32.Ke2 Be6 (32...Kd5 33.Nc2 Kc5 34.Rd7 Ra4+–) 33.Ne6 fe6 34.Rd6 Rb2 (34...Rc4 35.d3) 35.Rd4 1–0. Zasukhin,Vadim (2370) – Gusjkov,Yuri P (2305), Ekaterinburg UrFO–ch, 2008.

9.Be2 Qg6 10.Kf1 (10.Bf1 Bd6+=) 10...Bd6–/+ 11.f4 Nd3 12.Bd3 ed3 13.Nf3 Nf6 14.Bf6 Qf6 15.Nc3 Qg6 16.Kf2 0–0 17.Rf1 Re8 18.Kg1 Bg4 19.Qe1 a5 20.b5 Bd7 21.Qb1 Rad8 22.Nh4 Qh5 23.Nf3 (23.Qd3? Bg4 (23...Qh4?! 24.Qd6 Bh3 25.Qc5 Bg2 26.Rf2+=) 24.Nf3 Bf3 25.Rf3 Bf4–+) 23...cb5 24.Qd3 b4 25.ab4 Bb4 26.Nd4 b6 27.Rfc1 Bc8 28.Qf1 Bb7 (28...Bc5 29.Qb5–/+) 29.Qf2+= Rd6 30.Rd1 (30.f5!?–/+) 30...Rg6–+ 31.g3 Bc3 32.dc3 Black creates threats along the open d–file 32...Qd5 Threatening mate... how? 33.Kf1 Rh6 34.h4 Rg6 35.Ke1 h5 36.Kd2 Qc5 37.Rdc1 Be4 38.Ra4 Qc7 39.Ke1 (39.c4 Rd6–+) 39...Qd7–+ 40.Ra2 (40.Ra3 Qh3 41.Ne2 Bd3–+) 40...Qh3 41.Ne2 Bd3 42.Rd1 Bc4 (42...Bc4 43.Rb2 Be2 44.Re2 Rg3–+) 0–1. Etmans,Maarten D (2025) – de Jong,Peter JJ (2285), Dutch CC Championship, 2005.

9.Bf1 a5 =+.

9.Bf1 Be7 10.Nc3 Qg6 11.Qa4 Bd7 12.b5 Nf6 13.bc6 bc6 14.Qa5 (14.Qa6!?+=) 14...Nd3–/+ 15.Bd3 ed3 (15...Qg2 16.0–0–0 ed3 17.Rdg1–/+) 16.g3 0–0 (16...c5 17.Ndb5 0–0 18.Qc7–+) 17.Qa6 (17.Nf3 Rfb8 18.Rb1 Rb6–/+) 17...Rab8 18.Rb1 (better is 18.Bc1!?–/+) 18...Rb6–+ 19.Qc4 c5 20.Nf3 Qh5 21.Ng1 Rfb8 22.Qa2 Bc6 23.f3 Nd5 (23...Nd5 24.Qc4 Rb2 25.Rb2 Rb2–+) 0–1. Goncalves – Martello, email CTON, 1996.

6.d3 Ngf6

7.Nbd2 Be7 8.c4 0–0 9.Be2 a5 10.0–0 (10.c5 Qe6=) 10...Qe6 (10...b5 11.Bc3=) 11.Bc3 (11.c5 Bd8=) 11...ab4 (11...b6 12.Qc2=) 12.ab4 (worse is 12.Bb4 c5 13.Bc3 d4 14.ed4 ed4+=) 12...Ra1 13.Qa1 Bd6 14.Qb2 (14.c5 Bc7=) 14...e4 15.cd5 (15.de4 de4 16.Nd4 Qe5=) 15...cd5 16.de4 (16.Nd4 Qe5 17.g3 Qg5=) 16...de4 17.Nd4 (17.Ng5 Qf5 18.h4 b6=) 17...Qe5 18.g3 White intends b5 18...Qd5 19.Ra1 b6 20.b5 Ne5 21.Nc6 Nd3 (better is 21...Nc6!? 22.bc6 Qc6 23.Bf6 gf6 24.Qf6 Be6+=) 22.Qc2+/– Re8 (22...Bh3 23.Bf6 Qf5 24.Bd3 ed3 25.Qb2 gf6 26.e4+/–) 23.Bf6 Qf5 24.Ne4 (24.Rf1!? gf6 25.Nd4+–) 24...Nf2+= 25.Bd4 Ne4 26.Bd3 (26.Bb6?? Bg3 27.Bf3 Bf2 28.Qf2 Nf2 29.Kf2 Qb5–+) 26...Qd5 27.Be4 Re4 28.Bb6 (28.Bb6 Re8 29.Rd1+–) 1–0. Deschamp,Guy (2370) – Stefanov,Plamen (2185), IECG, 2006.

7.Nbd2 Be7 8.Be2 0–0 9.c4 a5 10.c5 Qc7 11.0–0 e4 (11...Rb8 12.d4 e4 13.Nh4=) 12.de4+= de4 (12...Ne4 13.Qc2 Nd2 14.Qd2+=) 13.Ng5+/– b6 14.Nge4 Ne4 15.Ne4 bc5 16.bc5 (16.ba5 Rd8+/–) 16...Nc5+= ½–½. Pleschke,Helmut – Schalkwijk,Peter H, IECG, 1999.

6.d4 e4

7.Nfd2 Ne7 8.c4 f5 (8...Nf5 9.Nc3=) 9.Nc3 Nf6 (9...f4 10.ef4 Qf4 11.Qe2=) 10.cd5 (10.Be2 f4+=) 10...Ned5= 11.Nc4 Qd8 (11...Qc7 12.Nd5 Nd5 13.Rc1=) 12.Nd5 Nd5 13.Ne5 Be6 14.Bc4 Bd6 15.0–0 (15.Qh5 g6 16.Qe2 Qg5=) 15...0–0 16.Qc2 Qe7 17.Rfd1 Rad8 (17...a5 18.b5=) 18.Rac1 Nb6 19.Bb3 (19.Be2 Qg5=) 19...a6 20.Be6 Qe6 21.Nc4 Qc4 (21...Nd5 22.Ne5+=) 22.Qc4 Nc4 23.Rc4 f4 24.ef4 Bf4 25.g3 (25.Bc1 Be5=) 25...Bg5 26.Re1 Rde8 (26...Rfe8 27.Rc2 Bf6 28.Rce2 Bd4 29.Bd4 Rd4 30.f3=) 27.Re2 (27.Rc2 Rf3+=) 27...Rf3 ½–½. Kern,M – Bolduan,M, Hessen clubgame, 1997.

7.Nfd2 f5 8.c4 f4 (8...Ngf6 9.Be2=) 9.cd5 (9.ef4 Qf4 10.Nc3 Ngf6=) 9...cd5 10.Qb3 Ngf6 11.Nc3 fe3 12.fe3 Nb6 (12...Be7 13.Nb5 Qb6 14.Rc1=) 13.Be2 (13.Nb5 Qd7+=) 13...Be7 14.a4 (14.Nb5 Qd7=) 14...Be6 (14...Qb4 15.Qc2 Ng4 16.Bg4 Bg4+/–) 15.b5 (15.Nb5 Qd7=) 15...0–0 (15...Rc8 16.Ba3 Qd7 17.Be7 Qe7 18.a5=) 16.a5 Nc4 (better is 16...Nc8!?=) 17.Nc4+/– (17.Bc4?! dc4 18.Qa4 Qb4 19.Qb4 Bb4+=) 17...dc4 18.Qa4 (better is 18.Bc4!? Bc4 19.Qc4 Kh8 20.Ba3+/–) 18...Rac8= 19.Ba3 Qd7 20.Be7 Qe7 21.Qa3 (21.0–0 Rf7=) 21...Qd7 22.Kd2? (better is 22.0–0!?=) 22...Bg4 (22...Nd5 23.Rab1–/+) 23.h3 Be2 24.Ke2 Nd5 (24...Nh5 25.Ke1–/+) 25.Rhf1 (25.Rab1 Rf7–/+) 25...Nc3 26.Qc3 Qb5 27.Rab1 (27.Rf8 Rf8 28.g4 Qd5–/+) 27...Qc6 (27...Qh5 28.Ke1 Rf7 29.Rf7 Qf7 30.Rc1–/+) 28.Rf8 Rf8 29.Rb4 (29.Rc1 Rc8–/+) 29...Rc8 30.Kf2 b5 31.ab6 ab6 32.Kg1 (32.Ke1 b5–+) 32...b5–+ 33.Rb1 Rb8 34.Qb4 c3 (34...Qh6 35.Qc3 Qh5 36.Kh2–+) 35.Rc1 c2 (better is 35...Rc8!?–+) 36.Qb3+= Kh8 (36...Qc4!? 37.Qc4 bc4 38.Rc2 Rb4+=) 37.Rc2= Qd6 (37...Qd7 38.Rf2=) 38.Qb5+= h6 (38...Qg3 39.Rc3+=) 39.Qe5 (39.Qf5!? Qe7 40.Rc8 Rc8 41.Qc8 Kh7 42.Qc6+/–) 39...Qe5+= 40.de5 The passed pawn on e5 quickly leads to threats 40...Rb5 41.e6 Re5 42.Rc6 g5 (42...g6 43.g4+=) 43.e7 (43.Rd6!?+=) 43...Kg7= 44.Rc7 Threatening mate: e8Q 44...Kf7 45.Rc6 (45.e8Q Ke8 46.g4 Kf8=) 45...Kg7 ½–½. BlueNoteTokyo (2095) – Lorien (2030), ICC, 2003.

7.Nfd2 Ngf6 8.c4 Be7 9.Be2 h5 10.a4 (10.Nc3!?+=) 10...Qb4+= 11.Ba3 Qa5 12.Be7 Ke7 13.Qb3 Rh6 14.Nc3 Rg6 15.Qa3 Kd8 16.g3 (16.0–0 h4=) 16...Ke8 (better is 16...h4!?–/+) 17.cd5= cd5 18.Nb5 Ng4 19.Bg4 hg4 20.Nd6 (20.h3 Kd8+/–) 20...Kd8 (20...Rd6!? 21.Qd6 Nb6 22.Qe5 Be6=) 21.Nf7+/– Ke8 22.Nd6 Kd8 23.Nf5 Nc5 24.dc5 (worse is 24.Qc5 Qc5 25.dc5 Bf5=) 24...Bf5 25.c6 Rc6?? (25...bc6 26.Qf8 Double attack; 25...Rc6 26.Qf8 Double attack) 26.Qf8+– Kc7 27.Qf5 (better is 27.Qa8!? Rc2 28.Rd1 Qa4+–) 27...Rc8 28.Qe5 Kb6 29.Qd4 (29.Rd1 g6+–) 29...Ka6 (29...Rc5 30.Ra3 Ka6 31.0–0+–) 30.0–0 (30.Qg7 Rc1 31.Rc1 Rc1 32.Ke2 Rh1 33.Qg4 Qa4 (33...Rh2?! 34.Qe6 Qb6 35.Qd5=) 34.Qe6 b6 35.Qc8 Ka5 36.Qc3 Kb5–+) 30...Rc3 31.Rfc1 (31.Rfb1 Rd3 32.Qb2 Rc7+–) 31...Rd3 (better is 31...Rc1 32.Rc1 Rc1 33.Kg2 Rd1 34.Qg7 Rd2 35.Qg4 Qa4–+) 32.Qb2?? (32.Rc8 Rd4 33.Nb3 Rc4 34.Rc4 dc4 35.Na5 Ka5+–) 32...Rcc3?? (better is 32...Rc1 33.Rc1 Rd2 34.Qg7 Rf2=) 33.Rcb1 b6 34.Nf1 Qc5 35.Qb5 (better is 35.Qe2!? Qc8 36.Ra2 g5+–) 35...Qb5 36.ab5 Kb7 37.Rb4 Rb3 (better is 37...Rc7+–) 38.Rb3?? (better is 38.Rba4 a5 39.ba6 Ka7 40.Rc1+–) 38...Rb3+=. Breitfeld,Joachim (2010) – Weller,Karl (1965), Dresden GER, 2013.

7.Ne5 b5 =.

7.Ne5 Be7 =.

7.Nfd2 Be7

8.c4= Ngf6 9.Be2 =.

8.c4 Qg6 9.Nc3 Ngf6 10.b5 0–0 =.

8.c4 Qg6 9.Nc3 Ngf6 10.cd5 cd5 11.Qb3 Nb6 (11...Qg5 12.Rc1=) 12.Bb5 (12.Rc1 0–0+=) 12...Kf8 (12...Bd7 13.Bd7 Nbd7 14.0–0=) 13.Bf1 Be6 (13...Bd7 14.Rc1=) 14.Rc1 Kg8 15.Ne2 (15.Na4 Na4 16.Qa4 Bd7=) 15...Bd6 16.g3 (16.Nf4 Bf4 17.ef4 Rc8=) 16...h6 17.Nf4 (17.Nc3 Rc8+=) 17...Bf4 18.ef4 (18.gf4 Kh7+=) 18...Kh7 19.Be2 Rac8 (19...Bg4 20.Bg4 Ng4 21.h3+=) 20.0–0 Nc4 21.Rfd1 (21.Nc4 dc4 22.Bc4 Rc4 23.Rc4 Rc8–/+ (worse is 23...Bc4 24.Qc4 Rd8 25.Qc7+=)) 21...Rhe8 (21...b5 22.f3–/+) 22.b5 (22.Nc4 dc4 23.Qa4 Nd5+=) 22...Bg4–/+ 23.Bc4 Bd1 (23...dc4 24.Nc4 Bd1 25.Rd1–/+) 24.Qd1 (24.Rd1 dc4 (worse is 24...Rc4 25.Nc4 dc4 26.Qc4=) 25.Nc4 Red8–/+) 24...dc4–/+ (24...Rc4?! 25.Nc4 dc4 26.Rc4=) 25.Nc4 Red8 (25...Nd5 26.Ne5 Qe6 27.Qh5 Rc1 28.Bc1–/+) 26.Ne3 (26.Ne5 Rc1 27.Bc1 Qf5–/+) 26...Qh5 (better is 26...Rc1!? 27.Qc1 Nd5–+) 27.Qh5+= Nh5 (27...Rc1 28.Bc1 Nh5 29.Bb2+=) 28.Rd1 (28.Rc8 Rc8 29.d5 Nf6=) 28...Nf6+= 29.d5 Nd7 (29...Ne8 30.f3 ef3 31.Kf2+=) 30.a4 (30.Bd4!?=) 30...Nc5+= ½–½. Rooijen Van,Peter (1655) – Sorcinelli,Andrea (1835), RA–2009–0–00071, 2009.

8.c4= Qg6 9.Nc3 Ngf6 10.cd5 cd5 11.Nb5 0–0 =.

8.c4= Qg6 9.Nc3 Ngf6 10.g3 0–0+= 11.Bg2 (11.f3 a5+=) 11...Nb6 12.c5 Bg4 13.Qc2 Nbd7 14.h3 Be6 15.Ne2 Qh6 (15...Bf5 16.Nf4 Qg5 17.g4+=) 16.Nf4 Nh5 (16...Bf5 17.g4 Bg6 18.b5+=) 17.Ne6= fe6 18.0–0 Bd8 (18...Nhf6 19.Rab1=) 19.a4 Bg5 (19...Bc7 20.b5=) 20.Nb3 (20.Bc3 Qg6+=) 20...Be3 21.Rae1 (21.fe3!? Qe3 22.Kh2 Qg3 23.Kh1=) 21...Bg5–/+ 22.Qe2 (22.Qc3 Bf6+=) 22...Qg6 (22...Rae8 23.Na5 Bd2 24.Bc1 Bc1 25.Rc1–/+) 23.b5 (23.Qg4 Nhf6 24.Qe6 Rf7=) 23...Rf7 (23...Rac8 24.Qg4 cb5 25.ab5+=) 24.bc6 (24.Qg4 Nhf6 25.Qe2 Bh6–/+) 24...bc6–/+ 25.Qc2 (25.Na5 Rc8–/+) 25...Raf8 26.Na5 Bf4 (26...Nb8!?–/+) 27.g4 (27.gf4 Nf4 28.f3 A) 28...Ng2 29.Qg2 Qh6 30.Bc1+– (30.fe4?! Rf1 31.Rf1 Qe3 32.Kh1 Rf1 33.Qf1 Qe4 34.Kh2 Qc2 35.Qg2 Qa4+/–; 30.Nc6?! ef3 31.Qf2 Qh3+=); B) 28...Qg3–+) 27...Nhf6+= 28.f3 (28.Nc6 a6=) 28...e5 29.Nc6 Ng4! 30.hg4 (30.fg4 Qc6) 30...Qc6 31.g5 (31.fe4 Qh6 32.Rf4 Qf4 33.c6–+) 31...Qg6 (better is 31...ed4 32.Bd4 e3–+) 32.Bh3? (32.c6 Qh5 33.Kf2–+) 32...Be3!! (32...Qg5 33.Qg2 Be3 34.Kh1 Qg2 35.Kg2 ed4 36.Bd7 Rd7 37.Rd1–+) 33.Kh1 (33.Re3 Qg5 A double attack) 33...Rf3 (33...ed4 34.c6 Nb6 35.fe4 Rf1 36.Rf1 Rf1 37.Bf1 Qg5 38.Qh2 de4 39.Bh3–+) 34.Qh2?? (better is 34.Rf3 Rf3 35.Bd7 ed4 36.Bg4 Qg5 37.Be6 Kh8 38.Qh2–/+) 34...Bf4 (better is 34...Rf1 35.Rf1 Rf1 36.Bf1 ed4 37.Bb5–+) 35.Qg2 Rg3 36.Qh2 Rg5 (36...Qc6 37.de5 Rf3 38.Qg2 Ne5 39.Be5 Be5 40.Rf3 Rf3 41.Qg4 Qc5 42.Qe6 Kh8 43.Qe8 Qf8 44.Qe5 Rh3 45.Kg1 Qc5 46.Kg2–+) 37.Rf4 ef4 38.Rg1 (38.Rc1–+) 38...f3 (38...Rg1 39.Qg1 Qh6 40.Qf1–+) 39.Rf1 (39.Rg5 Qg5 40.Be6 Kh8 41.Bd7–+) 39...f2! 40.Bc1 Rh5 0–1. Bonetti,Shane – Kleinsorgen,Horst, T15–09 ETC, 2003.

8.c4= Qg6 9.cd5 cd5 10.Nc3 Ngf6 =.

6.Be2 Ngf6

7.0–0 a5=.

7.0–0 Be7 8.d4 e4 9.Ne5 0–0 10.c4 dc4 (10...Qe6 11.Nd2=) 11.Nc4 Qc7 12.Qc2 Bd6 13.Nd6 Qd6 14.Nd2 Re8 15.Nc4 Qd5 16.Rfd1 Nb6 17.Ne5 Bf5 (17...Be6 18.Rac1=) 18.a4+= Bg6 (18...Qe6!?+=) 19.a5+/– Nbd7 20.a6 Rab8 (20...b5 21.Rdc1+–) 21.ab7+– Rb7 22.Nc6 Kh8 (22...Bh5 23.Ra5 Be2 24.Rd5 Bd1 25.Ne7 (25.Qd1?! Nd5 26.Qa4 N7f6+=) 25...Kh8 26.Qd1 Re7 27.Ra5+–) 23.Ra5 Qd6 24.d5 Rc8? (24...Bf5+–) 25.Ba6 Ng4 (25...Rcb8 26.Bb7 Rb7 27.Bf6 Nf6 28.Na7+–) 26.h3 (26.Bb7?! Qh2 27.Kf1 Qh1 28.Ke2 Qg2+–) 26...Qh2 27.Kf1 Bh5 28.Bb7 (28.hg4?! Bg4 29.Ke1 Qg1 30.Kd2 Qf2 31.Kc1 Qc2 32.Kc2 Bd1 33.Kd1 Rcc7 34.Bb7 Rb7+–) 28...Ne3?? (28...Nge5 29.g4 Qh3 30.Ke2 Bg4 31.Kd2 Bd1 32.Qd1 Nc4 33.Kc1 Re8 34.Ra7 Nb2 35.Kb2 Qh4+–) 29.fe3 Bd1 30.Bg7! Kg7 31.Qc3 (31.Bc8 Bc2 32.Bd7 Qg3–+; 31.Qd1?! Qh1 32.Ke2 Qg2 33.Ke1 Ne5+–) 31...Kh6 32.Bc8 Bf3 33.gf3 ef3 34.Ba6 (34.Ra7?? Qg2 35.Ke1 Qe2) 34...Qg2 35.Ke1 f2 36.Kd1 Qf3 (36...f1Q 37.Bf1 Qf1 38.Qe1 Qh3 39.e4+–) 37.Kc2 Qe4 (37...f1Q 38.Bf1 Qf1 39.Qd4 Qf5 40.e4+–) 38.Qd3 f1Q (38...Qf3 39.Qe2 Qg3 40.Qg4 Qg4 41.hg4+–) 39.Qe4 Qf2 40.Kb3 Nf6 41.Qf4 Qf4 42.ef4 Nd5 43.Rd5 Kg6 44.Bd3 Kf6 45.Rd7 (45...Ke6 46.Ra7+–; 45.Nd4 h5 46.Rd7 Kg7 47.Nf5 Kg8 48.Bc4 Kh7 49.Rf7 Kg6 50.Ne7 Kh6 51.Bd3 h4 52.Rh7) 1–0. market (2160) – Bendex, GameColony.com, 2002.

7.b5 c5 8.d4 cd4 9.ed4 e4 10.Nfd2 Qf4 11.0–0 (11.c4 Bd6=) 11...h5 (11...Bd6 12.g3 Qg5 13.Bc1+=) 12.c4 Bd6 13.g3 Qh6 14.Bc1 Qg6 15.f4 (15.c5 Bc7 16.Nb3 h4–/+) 15...Nf8 (15...h4 16.f5 Qh7 17.g4=) 16.cd5= h4 17.Nc4 hg3 (17...Bb8 18.Ne5 Be5 19.fe5 hg3 (19...Nd5?! 20.g4=) 20.ef6 Bh3 21.fg7 Qg7–+) 18.Nd6+= Ke7 19.Nc8 Rc8 20.Qe1 (better is 20.d6 Kd7 21.Nd2+=) 20...Rh2–/+ (worse is 20...gh2 21.Kh1 Nd5 22.f5+/–) 21.b6 Qf5 22.Qg3 (22.Bf3 Qh3 23.Be4 Kd8 24.Qe2 Re2 25.Rd1 Qh2 26.Kf1 Qf2) 22...Re2 0–1. Jacewicz,Grzegorz – Pagano,Nunzio, corr or02–021, 2003.

7.Nc3 Be7=+ 8.0–0 0–0 9.Re1 Bd8 10.d3 Bc7 11.Qd2 Re8 12.Reb1 a6 13.Ra2 b5 14.a4 Bb7 15.Nd1 h6 16.d4 e4 17.Ne5 Re5 (17...Qe6 18.Nd7 Qd7 19.Rba1=+) 18.de5= Ne5 19.g3 Neg4 (19...Nc4!? 20.Bc4 bc4=) 20.Rba1+= Re8 21.ab5 cb5 22.Bd4 h5 (22...Ne5 23.Nb2+=) 23.h3 (23.Nb2 h4+/–) 23...Ne5+= 24.Be5 (24.Kg2 h4+=) 24...Re5 25.Bf1 (better is 25.h4!?=) 25...h4–/+ 26.g4 (26.Nc3 hg3 27.fg3 Qb4–/+) 26...Rg5 (26...d4 27.Bg2 (27.Qd4?? Rd5 28.Bg2 Rd4 29.ed4 Bd5–+) 27...de3 28.Qd6 ef2 29.Kf2 Bd6 30.c3–/+) 27.Bg2–+ Qh2 (27...Ng4!? 28.hg4 Qh2 29.Kf1 Rg4 30.Be4 Re4 31.Nc3–/+) 28.Kf1–/+ Ng4! 29.hg4 h3 30.Bh3 Qh3 31.Ke1 Rg4 (31...Qh1 32.Ke2–/+) 32.Qd4 (32.Qc3!? Rg1 33.Kd2–/+) 32...Rg1–+ 33.Kd2 Qh5?? (better is 33...Qf1 34.Kc3 f6–+) 34.Qa7+– Be5 35.Qb7 Ba1 36.Ra1 Qe5 (36...Kh7 37.Qa6 d4 38.ed4+–) 37.Ra6 d4 (37...Qh5 38.Ra1 Kh7+–) 38.Qc8 Kh7 39.Qh3 (39...Kg8 40.Ra8 Qe8 41.Re8#) 1–0. kamret (2185) – Kix284 (2155), GameColony.com, 2003.

5.e3 e4

6.Nd4 Qb6 A) 7.Ra2 A1) 7...Ngf6 8.d3 (8.Be2 a5 9.ba5 Ra5 10.Bc3 Ra8 11.Rb2=; 8.Nb3 a6 9.Be2 Be7 10.0–0 0–0 11.f3=; 8.Nc3 Ne5 9.Be2 Bd7 10.0–0 Bd6 11.f4=) 8...a5 9.b5 Bc5 10.c4 dc4 11.de4=; A2) 7...c6 8.c4 (8.d3 a5 9.de4 de4 10.b5 c5 11.Nb3=; 8.Be2 a5 9.ba5 Qa5 10.Nc3 Ngf6 11.h3=; 8.Nc3 a5 9.b5 Ngf6 10.Na4 Qc7 11.d3=) 8...dc4 9.Qc2 Ngf6 10.Nc3 c5 11.Na4=; A3) 7...a5 8.ba5 (8.b5 Ngf6 9.d3 Ne5 10.Nc3 Be7 11.Be2=; 8.Nc3 Ngf6 9.b5 a4 10.d3 Ne5 11.Be2+=) 8...Ra5 9.Bc3 Ra8 10.Be2 Qg6 11.0–0=; B) 7.Nc3 Ngf6 8.Be2 a5 9.Na4 Qd6 10.b5 Ne5 11.0–0=.

6.Nd4= a5

7.ba5 A) 7...Nc5 8.Bc3 (8.a6 Na6 9.Nc3 Nf6 10.d3 Bg4 11.Be2=; 8.Nc3 Nf6 9.Be2 Ra5 10.Nb3 Nb3 11.cb3=; 8.d3 Ra5 9.de4 de4 10.Nd2 Ra8 11.Rb1=; 8.Nb5 Qd7 9.Bc3 Ne6 10.Be2 Nf6 11.0–0=) 8...Bd7 9.Bb4 Nf6 10.Nc3 Qe5 11.Rb1+=; B) 7...Ngf6 8.Bc3 (8.d3 Ra5 9.de4 de4 10.Nd2 Ne5 11.Nb5=; 8.Be2 Ra5 9.Nc3 Ne5 10.Ncb5 Qe7 11.Ne6=) 8...Ne5 9.Nb5 Qe7 10.Be2 c6 11.Nd4=; C) 7...Ra5 8.Nc3 (8.d3 Ngf6 9.Nd2 Ne5 10.de4 de4 11.Be2=; 8.Be2 Qg6 9.0–0 Nb6 10.Bh5 Qh6 11.Nb3=) 8...c6 9.Be2 Nc5 10.0–0 Qc7 11.h3=; D) 7...Ne5 8.Nb5 Qe7 9.Qh5 g5 10.N5c3 Bg4 11.Nd5=.

7.b5 A) 7...Nb6 8.Nc3 Qg6 9.d3 Bg4 10.Qd2 Nf6 11.h3=; B) 7...Ngf6 8.Be2 (8.Nc3 Ne5 9.Be2 Be7 10.f4 ef3 11.Nf3=; 8.d3 Nc5 9.Nc3 Be7 10.Be2 0–0 11.Qd2=) 8...Ne5 9.f4 ef3 10.Nf3 Nf3 11.Bf3=; C) 7...Nc5 8.d3 (8.Nc3 Nf6 9.Be2 Be7 10.0–0 0–0 11.f3=) 8...Na4 9.Bc1 Nf6 10.c4 Nc5 11.cd5=; D) 7...Qg6 8.d3 (8.Nc3 Ngf6 9.h4 Nb6 10.h5 Qg5 11.h6+=; 8.h4 Ne5 9.h5 Qg5 10.Nc3 Bg4 11.Qb1+=) 8...Ngf6 9.de4 de4 10.Nd2 Be7 11.Nc4=.

7.Nb5 Qc6 8.ba5 Ra5 9.N1c3 Ngf6 10.Nd4 Qb6 11.Rb1 =.

7.Nb5 Qc6 8.Bc3 Ngf6 9.Nd4 Qd6 10.ba5 Nc5 11.Bb5 =.

7.Nb5 Qc6 8.N1c3 Ngf6 9.d3 ed3 10.cd3 Qb6 11.ba5 +=.

7.Nb5 Qc6 8.Nd4 Qb6 9.Nc3 Ngf6 10.Na4 Qa7 11.Nb3 =.

7.Nb5 Qc6 8.Be2 Ngf6=+ 9.0–0 g6 (better is 9...ab4!? 10.Nd4 Qd6=+) 10.N1c3+= Rg8 (10...ab4 11.Nd5 Nd5 12.Bh8 ba3+/–) 11.f3 (11.Nd4!? Qd6 12.Ncb5+=) 11...ab4= 12.fe4?? (better is 12.Nd4 Qb6 13.ab4 Ra1 14.Ba1 Bb4 15.fe4 de4 16.Bc4=) 12...bc3–+ 13.ed5 Nd5 (14.Nc3 Nc3 15.Bc3 Ba3=+). Woschkat,Karl_Heinz – Shepherd,Gary, compuserve, 1995.

7.Nb5 Qc6 8.Be2 Ngf6=+ 9.ba5 Ra5 10.Nd4 =+.

7.Nb5 Qc6 8.Be2 Ngf6 9.Bc3 ab4 10.ab4 Ra1 11.Ba1 =.

7.Nc3 ab4? 8.Ndb5 Qc6 9.Nd5 +–.

7.Nc3 Nb6 8.Nb3 (8.b5 Qg6 9.d3 Nf6 10.de4 de4 11.Qd2+=; 8.ba5 Ra5 9.d3 Nf6 10.Qd2 Ra8 11.de4=; 8.Ncb5 Qd7 9.Nf5 f6 10.ba5 Na4 11.Qc1+=; 8.Bb5 c6 9.ba5 Ra5 10.Bf1 Nf6 11.Be2+=) 8...ab4 9.Nb5 Qe7 10.ab4 Nf6 11.Ra8 +/–.

7.Nc3 Ndf6 8.ba5 (8.b5 Nh6 9.f3 Be7 10.Be2 Nf5 11.Nf5=; 8.Bb5 c6 9.Ba4 Ne7 10.b5 c5 11.Nde2=) 8...Ra5 9.d3 Nh6 10.Nb3 Ra8 11.de4 +=.

7.Nc3 Ngf6 8.b5 (8.Ncb5 Qb6 9.Nb3 c6 10.ba5 Qd8 11.N5d4=; 8.ba5 Ra5 9.Be2 Nc5 10.Nb3 Nb3 11.cb3=; 8.Nf5 Qb6 9.Na4 Qe6 10.Nd4 Qe7 11.b5=; 8.Ndb5 Qc6 9.d3 ed3 10.cd3 Qb6 11.ba5+=) 8...Ne5 9.Be2 Be7 10.f4 ef3 11.Nf3=.

7.c4 dc4+= 8.Bc4 Ne5 (8...ab4 9.Qh5 Qf6 10.Nb5 Qb2 11.Qf7 Kd8 12.Nd4=) 9.Qc2 Nc4 10.Qc4 c6 (10...ab4?? 11.Nb5 Qc6 12.Nc7 Kd8 13.Qc6 bc6 14.Na8+–) 11.b5 c5 12.Ne2 f5 13.Nf4 Nf6 14.d3 ed3 15.0–0 Qe7 (15...g5 16.Nd3 Be7 17.Rd1+=) 16.Nc3 Qf7 17.Ncd5 (better is 17.Qd3!? Be7 18.Rac1+=) 17...Nd5+= 18.Nd5 Bd6 (18...Be6 19.Nc7 Qc7 20.Qe6 Qe7 21.Qf5+=) 19.Qd3 (19.Rfd1 Be6 20.Rd3 Rd8+=) 19...Be6 20.Nf4 Bf4 21.ef4 0–0 22.Rfe1 Rfe8 23.Qd6 (23.Qc3 b6=) 23...Rac8= 24.Re3 Qd7 25.Qb6 a4 26.Qa5 Bc4 27.Rg3 Re7 28.b6 Rd8 29.h3 Qd2 (29...Qc6!?=) 30.Bc3 Qd6 (30...Qf4? 31.Bf6 Qd6 32.Be7 Qe7 33.Re1+–) 31.Qa4 Bd5 (31...Qf4?? 32.Bf6 Re2 33.Bd8 Qf2 34.Kh2+–) 32.Qc2 (32.Qb5 Red7+/– (32...Qf4? 33.Qc5 Red7 34.Bg7+–)) 32...Be4 33.Qb2 Rdd7 34.Bf6 Rf7 35.Be5 Qd2 (better is 35...Qc6!?+/–) 36.Qd2+– Rd2 37.Rc1 Bc6 38.Rc5 Rd1 39.Kh2 Rb1 40.Ra5 h6 41.Ra8 Kh7 42.Bd4 Rd7 43.Rd8! Re7 (43...Rd8 44.Rg7 Double attack) 44.Re3 (44.Rc8!? Rd7 45.Rc7 g6+–) 44...Rf7 (44...Re3 45.fe3 Rc1 46.g4 fg4 47.hg4 Rh1 48.Kg3 Rg1 49.Kf2 Rg4 50.Rc8 Rg2 51.Kf1+/–) 45.Re5 (45.Rd3 Re7+–) 45...Rd1 46.Ra5 Re7 (46...Rd7 47.Rd7 Bd7 48.Be5+–) 47.Bf6! Ree1 (47...gf6 48.Rd1 Discovered attack) 48.Rd1 Rd1 49.Be5 Rd2 (49...Rb1+–) 50.Rc5 Ba4 51.Rc4 Bb5 52.Rc7 Rd7 53.Rc5 Ba4 54.Rc4 Bb5 55.Rb4 (55.Rc8 Kg6+–) 55...Ba6 56.Ra4 Bb5 57.Ra7 Bc6 58.Ra8 Re7 (58...Kg6 59.a4+–) 59.a4 (59.Rc8 Bd5+–) 59...Re8 60.Ra7 Rd8 61.a5 Rd2 62.Kg3 Rd3 (62...Ra2 63.Ra8+–) 63.f3 Ra3 64.Ra8 Ra2 (64...g5 65.Rc8 Ra5 66.Rc6 bc6 67.b7+–) 65.Rc8 Bb5 (65...Ra5 66.Rc7 Kh8+–) 66.Rc7 Kg6 (66...h5 67.Rb7 h4 68.Kh4 Rg2 69.Ra7+–) 67.Kh4 h5 68.Rb7 Kh6 69.Rg7 Bc6 (69...Ba6 70.Ra7 Ra5 71.Bg7 Kg6 72.Bd4+–) 70.Rc7 (70.a6 Ra5 71.b7 Bb7 72.ab7 Re5 73.fe5 Kg7 74.Kg5 Kg8 75.b8Q Kf7 76.Qc7 Ke6 77.Qd6 Kf7 78.Qd7 Kg8 79.Kf6 Kf8 80.Qd8) 70...Bd5 71.Rd7 Ba8 (71...Ra5 72.g4 fg4 73.fg4 hg4 74.hg4+–) 72.b7 (72.g4 hg4 73.fg4 Bb7 74.g5 Kg6 75.Rg7) 72...Bb7 73.Rb7 Rg2 (73...Ra5 74.g4 fg4 75.fg4 hg4 76.hg4 Ra2+–) 74.Rb2 Rg8 75.a6 1–0. Teichmann,Erik O M C (2310) – Smirnov,Anton (2460), 50th Begonia Open, 2016.

7.Nf5 Qg6 8.Nh4 Qe6 =.

6.Nd4= Nb6

7.Ra2 A) 7...Nf6 8.Be2 (8.Nb5 Qe7 9.d3 a5 10.Bf6 gf6 11.de4=; 8.d3 a5 9.Nb5 Qe7 10.Bf6 gf6 11.de4=) 8...a5 9.b5 Na4 10.Ba1 Be7 11.d3=; B) 7...Nh6 8.Nc3 (8.d3 Bg4 9.Qd2 Na4 10.de4 de4 11.Bb5=; 8.f3 a5 9.b5 Be7 10.Qc1 Na4 11.Ba1+=) 8...a5 9.ba5 Ra5 10.d3 f5 11.de4=; C) 7...a5 8.b5 (8.ba5 Ra5 9.Nc3 Nf6 10.Nb3 Ra8 11.Nb5=; 8.Nc3 Nf6 9.ba5 Ra5 10.Nb3 Ra8 11.Nb5=; 8.Nb5 Qe7 9.f4 c6 10.Bd4 Qh4 11.g3+=) 8...Be7 9.d3 Nf6 10.Be2 Na4 11.c4=.

7.Nb5 Qe7 8.Bd4 a6 9.N5c3 Nf6 10.d3 Bf5 11.Nd2 =.

7.Nb5 Qe7 8.Bd4 a6 9.Bc5 Qd8 10.Bf8 Kf8 11.Nd4 Nf6 (11...Nh6 12.d3=) 12.Be2+= Bd7 (12...Kg8 13.0–0=) 13.Nc3 White prepares b5 (13.0–0 Kg8+=) 13...h5 14.a4 White plans b5 (14.0–0 h4=) 14...a5 15.b5 c5 (15...h4 16.f3=) 16.Nb3 (16.bc6 bc6 17.f3 h4=) 16...Qc7 (16...Qe7 17.0–0=) 17.Nb1 (17.f3 h4=) 17...Rh6 (17...Kg8 18.d4 cd4 19.Nd4=) 18.d3 (18.0–0 Ng4 19.g3 Nf6+=) 18...Rg6+= 19.g3 Bg4 20.N1d2 (20.d4 Nbd7+=) 20...ed3 (20...Be2 21.Qe2 c4 22.dc4 dc4 23.Nd4+=) 21.cd3= Nbd7 (21...c4 22.Bg4 Rg4 23.Nd4=) 22.Rc1 Qd6 23.Nf3 Bf3 (23...Kg8 24.0–0=) 24.Bf3 h4 25.Be2 (25.gh4 Rh6=) 25...b6 26.Nd2 Re8 27.Nf3 hg3 28.hg3 Kg8 29.Nh4 Rh6 30.Kd2 (better is 30.Bf3!?=) 30...c4–/+ 31.Rb1 (31.dc4 Qb4 32.Kc2 dc4 33.Rb1 Qa4 34.Kc1 Qa3 35.Kc2–+) 31...d4–+ 32.Nf5? (32.Kc2 Qa3 33.Ra1 Qc3 34.Kb1–+) 32...de3 33.fe3 Ne4 34.Kc1 (34.Kc2 cd3 35.Qd3 Qc5 36.Qc4 Qf5 37.Rh6 Nd6 38.Qd3 gh6 39.Qf5 Nf5 40.Bd3 Ng3 41.Rg1 Re3 42.Kd2–+) 34...Qa3 35.Rb2 Rh1 0–1. Junge – Rudnick,W, corr DDR JB'5994, 1980.

7.Nc3 a5 8.Nb3 (8.b5 Qg6 9.d3 Bd6 10.Nde2 Nf6 11.de4+=; 8.ba5 Ra5 9.d3 Nf6 10.Qd2 Ra8 11.de4=; 8.Ncb5 Qd7 9.Nf5 f6 10.ba5 Na4 11.Qc1+=; 8.Bb5 c6 9.ba5 Ra5 10.Bf1 Nf6 11.Be2+=) 8...ab4 9.Nb5 Qe7 10.ab4 Nf6 11.Ra8 +/–.

7.f3 A) 7...a6 8.Nc3 ef3 9.Nf3 Qg6 10.Ne2 Bd6 11.Nf4=; B) 7...Nf6 8.Nb5 (8.Be2 a5 9.Nb5 Qe7 10.0–0 c6 11.Bf6=) 8...Qe7 9.Be2 ef3 10.Bf3 Ne4 11.Bd4+=; C) 7...Be7 8.d3 (8.Nc3 c6 9.fe4 Bh4 10.Ke2 Bf6 11.Kf3=; 8.Be2 Bh4 9.Kf1 Nf6 10.Nc3 0–0 11.Kg1+=; 8.Ra2 Bf6 9.Bb5 c6 10.Be2 Bh4 11.Kf1+=) 8...Qh6 9.Nb5 Bd8 10.Be5 Qe3 11.Qe2=; D) 7...a5 8.ba5 Ra5 9.Bc3 Ra8 10.Be2 Na4 11.fe4=.

7.f4 A) 7...a6 8.Nc3 (8.Be2 Na4 9.Bc1 Be7 10.c4 Bd7 11.c5=; 8.Nb3 Be7 9.Nc3 Qg6 10.d3 Nf6 11.de4+=) 8...Be7 9.d3 Nf6 10.Be2 0–0 11.0–0=; B) 7...Qg6 8.Nb5 (8.Nc3 a5 9.Ncb5 Kd8 10.ba5 Na4 11.Qc1+=; 8.Ra2 a6 9.Nc3 Nf6 10.Qe2 Bd6 11.Qf2+=) 8...Be7 9.d3 Bh4 10.g3 Bd8 11.Be5=; C) 7...Qd7 8.Nc3 (8.Be2 Nf6 9.0–0 Be7 10.Nc3 0–0 11.d3=; 8.Bb5 c6 9.Be2 Na4 10.Bc3 a5 11.b5+=; 8.Qh5 Nf6 9.Qe5 Be7 10.Be2 a6 11.0–0=; 8.Nb3 Na4 9.Bd4 Ne7 10.Nc3 Nc3 11.Bc3=) 8...Be7 9.d3 ed3 10.Bd3 Bh4 11.g3=; D) 7...Qd8 8.Qh5 (8.Nc3 Nf6 9.Be2 c5 10.bc5 Bc5 11.Nb3=; 8.Be2 Qh4 9.g3 Qd8 10.0–0 Nf6 11.Nb5=; 8.Bb5 Bd7 9.0–0 a5 10.Bd7 Qd7 11.Nb3=; 8.Ra2 Nf6 9.Be2 a5 10.b5 Bc5 11.Nb3+=) 8...c6 9.Be2 Na4 10.Bc3 Nc3 11.Qe5=; E) 7...c6 8.Nc3 (8.Be2 a5 9.b5 Na4 10.Bc3 c5 11.Nb3+=) 8...Nf6 9.d3 a5 10.de4 Ne4 11.Ne4=.

6.Nd4= c6

7.c4 dc4 8.Nc3!? +=.

7.c4 dc4 8.Bc4 Ne5 9.Bf1 =.

7.c4 dc4 8.Bc4 Qg6+= 9.g3 (9.Bf1 Ngf6=) 9...Ne5 10.Be2 h5 (10...Bh3 11.Nb5 Bd6 12.Nd6 Qd6 13.Bd4+=) 11.Nb5 cb5 (better is 11...Bd6!? 12.Nd6 Qd6=) 12.Be5+= a6 13.Nc3 Ne7 14.Bf4 h4 (14...Bg4 15.a4 Be2 16.Qe2 (16.Ke2?! Qg4 17.Ke1 Qd1 18.Kd1 ba4+=; 16.Ne2?! Nd5+=) 16...ba4 17.Ra4+/–) 15.a4+/– ba4 16.Ra4 (16.Qa4 Bd7 17.b5 f5+/–) 16...hg3 17.Bg3 (17.fg3 Be6 18.b5 Nd5 19.ba6 ba6 20.Bb5 Kd8 21.Nd5 Bd5+/–) 17...Bf5 (17...Nf5!? 18.Rg1 Ng3 19.Rg3 Qb6+=) 18.b5+/– a5 19.Qb1 (19.Rd4 Rd8 20.Rd8 Kd8+–) 19...Nc8+= 20.b6 (20.Qa2 Be7 21.Ra5 Ra5 22.Qa5 b6+/–) 20...Bd6 (20...Bb4 21.Nd5 0–0 22.Nb4 Nb6 23.Nd5 Nd5 24.Qb7+=) 21.Bb5 (21.Qb5 Bd7 22.Bd6 Nd6 (22...Bb5? 23.Bb5 Kd8 24.Bc7 Ke7 25.Re4 Qe4 26.Ne4+–) 23.Qe5 Kf8+=) 21...Kf8= 22.Nd5 (22.Rd4 Rh6+=) 22...Bg3 (better is 22...Ne7!? 23.Qb3 Rc8–/+) 23.fg3+= Qd6 (23...Nd6 24.0–0+=) 24.Rd4 (24.0–0 Qh6 25.Rf2 Nd6+/–) 24...Nb6 25.0–0 Qh6 26.Rf2 (26.Rf5 Qh2 27.Kf1 Qh1 28.Ke2 Rh2 29.Rf2 Qf3 30.Ke1 Qf2 31.Kd1 Rc8 32.Nc7 Rh1 33.Kc2 Rc7 34.Bc4 Rc4 35.Rc4 Nc4 36.Kc3 Qf6 37.Kc4 Rb1 38.Kd5 Qe6 39.Kd4 Rb4 40.Kc5 Qe5) 26...Nd5 27.Rd5 g6 (27...Be6 28.Qe4 Rc8 29.Re5+/–) 28.Bc4 Rc8?? (28...Kg7 29.Qb2 Kg8 30.Qb7 Rf8 31.Ra5 Qh3+–) 29.Qb5 (better is 29.Qb7 Qh7 30.Rdf5 gf5 31.Qc8 Kg7 32.Qc5+–) 29...Be6? (29...Qh3 30.Rd4 Qg4 31.Qb7+/–) 30.Rd4 (better is 30.Rc5!? Rc5 31.Qc5 Ke8 32.Be6 fe6 33.Qc8 Ke7 34.Qb7 Kd6 35.Qb6 (35.Qe4?! Rf8 36.Qd3 Kc6 37.Qc4 Kd7 38.Qb5 Ke7 39.Rf8 Qf8+–) 35...Ke7 36.Qc7 (36.Qa5?! Rd8+–) 36...Ke8 37.Qf7 (worse is 37.Qa5 Rf8 38.Qa8 Ke7 39.Qb7 Kd8 40.Qb8 Ke7 41.Qb4 Ke8 42.Qe4 Rf2 43.Qe6 Kf8 44.Kf2 Qh2 45.Kf3 Qd2 46.Qf6 Ke8+–) 37...Kd8 38.Qe6+–) 30...Qh3 31.Qa5 (31.Qb7 A) 31...Rc4 32.Rd8 Kg7 33.Qb2 Rc3 34.Qc3 Kh6 35.Rh8 Kg5 36.Qf6 Kg4 37.Rf4; B) 31...Bc4?? 32.Rc4 Kg7 33.Rf7 Kh6 34.Rc8 Qc8 35.Rh7 (35.Qe4?! Qc1 36.Rf1 Qd2+–) 35...Rh7 36.Qc8+–; C) 31...Rh7 32.Qe4 Kg8+/–) 31...Bc4 (31...Rc4?? 32.Rd8 Kg7 33.Qe5 f6 34.Qf6 Kh6 35.Rh8) 32.Qb4 (32.Rc4!? Rc4 33.Qd8 Kg7 34.Qf6 Kh7 35.Qf7 Kh6 36.Qc4+=) 32...Kg7+= 33.Rc4 Ra8? (better is 33...Rc4 34.Qc4 Qe6 35.Qe6 fe6+=) 34.Qb2+– Kg8 35.Rc7 (better is 35.Re4 Qd7 36.Rb4+–) 35...Qe6?? (better is 35...Rh7+/–) 36.Rff7 (better is 36.Rf6 Qa6 37.Ra6 ba6 38.Qb7+–) 36...Qf7 37.Rf7 Kf7 38.Qb7 Kf6 39.Qe4 Rhd8 (39...Rhc8 40.Kg2+–) 40.d4 Ra1 (40...Re8 41.Qc6 Kg7 42.h4+–) 41.Kg2 Rda8 (41...Ra2 42.Kf3 Rh2 43.Qe5 Kf7 44.Qc7 Ke8 45.e4+–) 42.Qe5 (42.d5 R8a7+–) 42...Kf7 43.d5 R1a2 (43...Rd1 44.h4+–) 44.Kf3 Re8 (44...Rh2 45.Qc7 Kg8 46.d6+–) 45.Qc7 Kf6 (45...Re7 46.Qc4 Rd2 47.h4+–) 46.g4 Rf8 47.h4 g5 (47...Rf7 48.Qc3 Ke7 49.Ke4 Ra4 50.Ke5+–) 48.h5 Rfa8 (48...Rf7 49.Qc6 Kg7 50.Ke4 Rf6 51.Qc7 Rf7 52.Qe5 Kh7 53.Qg5 Ra6+–) 49.h6 R2a7 50.Qd6 Kf7 51.Qe6 Kf8 52.Qg6 Re8 (52...Rf7 53.Kg3 Raa7 54.Qg5 Rad7+–) 53.h7 Rf7 1–0. Morriss,Pete (2030) – Hohler,Peter (2185), Katerini GRE ,World Seniors Ch, 2014.

7.c4 Ngf6 8.Nc3 dc4 9.Qc2 Ne5 (9...a5 10.Ne4 Ne4 11.Qe4 Qe5 12.Qc2 ab4 13.ab4 Ra1 14.Ba1 Bb4 15.Bc4+=) 10.Ne4+= Ne4 11.Qe4 Be7 12.f4 Nd3 13.Bd3 cd3 14.Qd3 0–0 15.Qe2 (15.0–0 Rd8+=) 15…a5= (15...a5 16.ba5 Bh4 17.g3 Bd8=). De Visser,A – Timmerman, corr (year?).

7.d3 Qg6 =.

7.Be2 Ne5 8.0–0 Be7 9.f4 ef3 10.Nf3 (worse is 10.gf3 Bh3 11.Qe1 Bf1 12.Qf1 Qg6 13.Kh1 Bf6–+; 10.Bf3?! Nf3 11.Nf3 Nf6=) 10...Bf6 11.Nc3 Nh6 12.e4 (better is 12.Na4!?=) 12...d4–/+ 13.Na4 d3 14.Bd3 (better is 14.Be5!? Be5 15.cd3 Ba1 16.Qa1+=) 14...Nf3–+ 15.gf3 (15.Qf3!? Bb2 16.Nb2 Qd4 17.Qe3 Qb2 18.Qc5–/+) 15...Bb2 16.Nb2 Qd4 17.Kg2 Qb2 18.c3 Be6 19.Rb1? (19.Qc2 Qc2 20.Bc2 a5–+) 19...Qa2 (19...Qa3 20.Ra1 Qb2 21.Rb1+=) 20.Qe2 (20.Ra1 Qb3 21.Be2 Qb2–+) 20...0–0–0 (20...Qa3?! 21.Ra1 Qb3 22.Rfb1 Bh3 23.Kh3 Qe6 24.Kg2=) 21.Rfd1? (better is 21.Ra1!? Qb3 22.a4 Rd3 23.Qd3–/+) 21...Bb3 (21...Qa3?! 22.Ra1 Ba2 23.Qe3–+) 22.Re1 (22.Rg1 Rd3! 23.Qd3 Bc2–+ (23...Qa3 24.c4+/–)) 22...Rd3! (22...Qa3?! 23.Ra1 Ba2 24.Bb1+=) 23.Qd3 Rd8 (23...Qa3 24.c4 Rd8 25.Qb3 Rd2 26.Kg3 Qb3 27.Rb3+/–) 24.Qf1 Rd2 25.Kg1 Rh2 (25...Rh2 26.Rb3 Rh5–+ (26...Qb3?! 27.Kh2 Qc3 28.Qh3 f5 29.Rg1+=)) 0–1. Zenner,L – Essegern,Kurt, DDR–ch11 sf corr, 1981. (=1.Nf3 d5 2.b4 Qd6 3.a3 e5 4.Bb2 Nd7 5.e3 e4 6.Nd4 c6)

6.Nd4= Ngf6

7.Nb5 Qb6 8.Bd4 c5 9.bc5 Nc5 (9...Bc5 10.N1c3 Qd8 11.Be2=) 10.N1c3 a6 (10...Be6!?+= 11.Be5+=) 11.Bf6+/– ab5 12.Bd4 (12.Nd5?! Qd6 13.Qh5 gf6 14.Bb5 Bd7 15.Bd7 Nd7+=) 12...Be6 (12...Qd6!?+/–) 13.Bb5+– Kd8 14.Qh5 1–0. Fritz 10 – nn, internet, 2007.

7.Nc3 A) 7...Ne5 8.Be2 (8.Ncb5 Qb6 9.Nb3 Nc4 10.Bf6 Qb5 11.Bc3=; 8.f4 ef3 9.gf3 a5 10.b5 Be7 11.f4=; 8.Rb1 a5 9.b5 Be7 10.Be2 0–0 11.0–0=) 8...a5 9.Nb3 Nc6 10.b5 Ne5 11.d3=; B) 7...a6 8.Be2 a5 9.ba5 Ra5 10.Ncb5 Qb6 11.Bc3=; C) 7...Nb6 8.Be2 (8.d3 a5 9.de4 ab4 10.ab4 Ra1 11.Ba1=) 8...a5 9.b5 Be7 10.0–0 0–0 11.f3=; D) 7...c6 8.Be2 (8.d3 Ne5 9.Be2 Be7 10.de4 de4 11.Nb3=; 8.f4 a5 9.ba5 Ra5 10.Be2 Nc5 11.g4+=; 8.Ra2 Ne5 9.Be2 a5 10.d3 Be7 11.de4+=; 8.f3 a5 9.b5 c5 10.Nde2 ef3 11.gf3=) 8...a5 9.ba5 Ra5 10.d3 Ne5 11.Qd2=; E) 7...a5 8.b5 (8.Ncb5 Qb6 9.Nb3 c6 10.ba5 Qd8 11.N5d4=; 8.ba5 Ra5 9.Be2 Ne5 10.Ncb5 Qe7 11.Ne6=) 8...Ne5 9.f4 Ng6 10.Be2 Be7 11.f5=.

7.Be2 a5 8.Nb5 (8.b5 Nb6 9.Nc3 Be7 10.0–0 0–0 11.f3=) 8...Qc6 9.0–0 ab4 10.ab4 Ra1 11.Ba1 =.

7.Be2 a6 8.0–0 (8.Nc3 Ne5 9.0–0 Be7 10.f3 ef3 11.Nf3=; 8.f3 ef3 9.Nf3 a5 10.b5 Be7 11.0–0=) 8...Nb6 9.Nc3 Be7 10.f3 0–0 11.fe4 =.

7.Be2 Qb6 8.Nc3 a5 9.ba5 Ra5 10.Nb3 Ra8 11.a4 =.

7.Be2 Nb6 8.Nb5 (8.0–0 a5 9.Nb5 Qe7 10.f3 c6 11.Bf6=; 8.Nc3 a5 9.ba5 Ra5 10.d3 Be7 11.Nb3=; 8.d3 a5 9.Nb5 Qe7 10.Bf6 gf6 11.de4=; 8.f3 a5 9.Nb5 Qe7 10.0–0 c6 11.Bf6=) 8...Qe7 9.f3 ef3 10.Bf3 Ne4 11.Bd4 +=.

7.Be2 Ne5 8.0–0 =.

7.Be2 Ne5 8.Nb5 Qe7 9.0–0 a5 10.Bd4 ab4 11.ab4 =.

7.Be2 Ne5 8.Bc3 Bd7 9.Nb5 Bb5 10.Bb5 c6 11.Be2 =.

7.Be2 Ne5 8.Nc3 a5 9.Nb3 Nc6 10.b5 Ne5 11.d3 =.

7.Be2 Ne5 8.d3 Bd7 9.Nd2 0–0–0 10.de4 Ne4 11.f4 =.

7.Be2 Be7 8.0–0 0–0= 9.c4 (better is 9.Nf5 Qe6 10.Ne7 Qe7 11.Nc3=) 9...Nb6?? (better is 9...dc4 10.Nf5 Qe6 11.Ne7 Qe7 12.Bc4 Ne5+=) 10.c5+– Qd7 11.cb6 ab6 12.Bb5 c6 13.Be2 c5 14.bc5 bc5 15.Nb3 c4 16.Nd4 b5 17.Nc3 b4 18.ab4 Ra1 19.Qa1 Bb4 20.Qa4 (20.f3 ef3 21.Bf3 Bd6+–) 20...Bc3 21.Qd7 Bd7 22.Bc3 Rb8 23.f3 Ra8 24.fe4 Ne4 25.Nf3 (25.Bf3 Kf8+–) 25...Ra3 (25...Ra2 26.Rb1 h6 27.Bd1+/–) 26.Bd4 Ra1?? (better is 26...f6+–) 27.Ra1 (27.Ra1 f6 28.Ra7+–) 1–0. Fournier,Frederic (1985) – manolillo (2050), Echecs21, 2003.

7.Be2 Be7 8.Nf5!? Qc6 9.Ng7 Kd8 10.Nf5 +/–.

5.e3 Be7

6.Nc3 Bf6 7.Be2 c6 8.0–0 Ne7 9.b5 c5 10.Rb1 b6 11.e4 Bb7 (11...d4!? 12.Na2 Qe6=+) 12.ed5+= Bd5 (12...0–0–0 13.Bc4+=) 13.Nd5 Nd5 14.Bd3 0–0 15.Be4 Rad8 16.Re1 g6 (16...c4 17.Qe2 Qc5 18.d3+=) 17.Qe2 Bg7 (17...Nf4!? 18.Qc4 Qe6 19.Qe6 Ne6+=) 18.Qd3+/– N7f6 (18...Nb8 19.Bd5 Qd5 20.Qd5 Rd5 21.Be5 Be5 22.Re5 (22.Ne5?! Rd2 23.c3 Rfd8=) 22...Re5 23.Ne5+/–) 19.Be5+– Qe6 20.Bd5 Rd5 (20...Qd5 21.Qc3 Qe6 22.d4+/–) 21.Qc3 Ne4 (better is 21...Rdd8+–) 1–0. kamret (2125) – Orla (1915), GameColony.com, 2002.

6.c4 dc4 7.Bc4 c6=.

6.d4 e4+= 7.Ne5 Bf6 (7...a5 8.b5 Ngf6=) 8.Be2 (better is 8.Nd7!? Bd7 9.c4=) 8...Ne5–/+ (worse is 8...Be5 9.de5 Ne5 10.c4 dc4 11.Qd4 Qd4 12.Bd4= (12.ed4? Nd3 13.Bd3 cd3–+)) 9.de5 Be5 10.Be5 Qe5 11.Qd4 Qd4 12.ed4 Nf6 13.0–0 Bg4 14.Nc3 Be2 15.Ne2 a5 16.b5 Nd7 (16...Kd7 17.Ng3–/+) 17.a4 (17.f3 Nf6–/+) 17...Nb6 18.Ra2 (18.Rfe1 Nc4–/+) 18...0–0 19.Nf4 Rad8 20.g3 (20.Ra3 Rfe8–/+) 20...Rfe8 21.Ng2 f5 22.c3 Rf8 23.f4 Nc4 24.Re2 Rfe8 25.Rfe1 g6 26.Kf2 Kf7 27.Nh4 (27.Ne3 Ne3 28.Ke3 Rc8–/+) 27...Kf6 28.Ng2 h6 29.Ne3 Nb6 30.Ng2? (better is 30.Ra1–+) 30...Na4 31.h3 Nb6 32.g4 a4 33.Ne3 Ra8 34.Ra2 Ra5 35.Rb1 (35.gf5 gf5 36.Rb1 Rg8–+) 35...Rd8 (35...fg4 36.Ng4 Ke6 37.Ne5–+) 36.Rb4 Rda8 (36...fg4 37.Ng4 Ke6 38.Ne5–+) 37.Ke2 Ke6 38.h4 (38.Ra3 fg4 39.hg4 Rf8 40.f5 gf5 41.Nf5 h5 42.Ng7 Kf6 43.Nh5 Kg5–+) 38...fg4 39.Ng4 Rf8 40.Ke3 Nc4 Black intends a3 (better is 40...g5!? 41.fg5 Rf3 42.Ke2 hg5 43.hg5 Rc3 44.Ne3–+) 41.Rc4 dc4 42.Nh6 (42.Ke4 Rb5 43.Ne5 Ra8–+) 42...Rfa8 (better is 42...Rh8 43.d5 Kd5 44.Nf7 Rh4 45.Rd2 Kc5 46.b6 Kb6 47.Ne5–+) 43.Ke4 Rb5 44.Re2 (44.Rg2 Kd7 45.Rg6 Re8 46.Kf3–+) 44...a3 45.Kf3 Kd7 46.Kg4 (46.Ra2 Rb2 47.Ra1 a2–+) 46...a2 47.f5 (47.Ra2 Ra2 48.Nf7–+) 47...gf5 48.Nf5 a1Q (48...Rg8 49.Kf4 a1Q 50.Ne3 Rf8 51.Nf5 Rbf5 52.Kg3 Qg1 53.Rg2 Rg8 54.Kh3 Qg2) 49.Re7 Kd8 0–1. aji – tenuki, VOGChess, 2002.

6.c4 c6

7.Qb3 Bf6 (7...Ngf6!?=) 8.cd5+= cd5 9.Nc3 e4 (9...Ne7!?+=) 10.Nb5+/– Qb8 11.Rc1 ef3 (11...Kf8!? 12.Nfd4 Be5+/–) 12.Rc8!+– Qc8 13.Nd6 Ke7 14.Nc8 Rc8 15.gf3 Bb2 16.Qb2 Ngf6 17.Bh3 Rhd8 (17...b5 18.Rg1 Rhg8 19.Bd7 Kd7 20.e4+–) 18.Ke2 Rc4 (18...b5 19.Rg1 Rg8 20.Bd7 Kd7 21.Rg7 Rg7 22.Qf6+–) 19.d3 (19.Bd7 Rd7 20.Qe5 Kf8 21.Qb8 Ne8 22.Qa7 d4 23.ed4 Rcd4+–) 19...Rc6 20.Rc1 Rdc8 21.Rc6 Rc6 22.Bd7 Kd7 23.e4 Ke6 (23...Re6 24.Qd4 b6 25.Kf1+–) 24.Qd4 b6 25.h4 (25.ed5!? Nd5 26.Qg7 Nf6+–) 25...g6 26.Kd2 de4 (26...a6 27.Qe3+–) 27.fe4 Rc7 (27...a6+–) 28.f4 Nh5 (28...Rc6 29.b5 Rd6 30.Qc4 Ke7 31.e5+–) 29.f5! Ke7 (29...gf5 30.Qd5 Deflection (30.Qd5 Decoy)) 30.Qe5 (better is 30.f6 Ke8 31.Qd6 Rb7+–) 30...Kd8 (30...Kd7 31.Qh8 Ke7 32.Qh7+–) 31.f6 1–0. Dzieniszewski,Andrzej – Liszka, Rowy Poland, 1987.

7.Qc2 Nh6 8.Nc3 a6 9.cd5 cd5 10.Be2 0–0 11.0–0 Nb6 12.d3 f5 Black plans e4 13.h3 (13.Rac1 Be6=) 13...Bd7 (13...Be6 14.Rac1=) 14.a4 (14.d4 e4 15.Ne5 Rac8=) 14...e4 (14...d4 15.ed4 ed4 16.Nd1=) 15.Nd2 Rac8 (15...Qb4? 16.Ba3 ed3 17.Qd3+– (17.Bb4?! dc2 18.Be7 Rfc8=)) 16.Rfc1 (16.a5 Na8 17.b5 ab5+=) 16...f4 (16...Qb4 17.Ba3 Qa3 18.Ra3 Ba3 19.Rb1 Na4 20.Rb3–+) 17.de4+= fe3 18.fe3 Qg3 19.Bf3 Qg5 (19...Bh3 20.Nf1 Qg5 21.Qd1+=) 20.Qd3 (20.Re1 Bb4 21.ed5 Bh3 22.Nde4–/+) 20...Bh3+= 21.Qe2 (21.Nd5?? Rf3 22.Qe2 Bg2 23.Rc8 Nc8 24.Qg2 Rg3 25.Qg3 Qg3 26.Kf1 Ng4–+) 21...Bb4 22.ed5 Bg4 (22...Bg4 23.Nce4 Bf3 24.Nf3 Rc1 25.Rc1 Qe7=). Sternik,Ryszard – Hnat,Z, corr ICCF EU/M/GT/252 (year?).

7.Nc3 a6 8.cd5 cd5 (--> 7.cd5 cd5 8.Nc3 a6).

7.Nc3 Ngf6 (--> 5.e3 Ngf6 6.c4 c6 7.Nc3 Be7).

7.c5 Qc7 8.Be2 Ngf6 9.h3 (9.d4 e4 10.Nh4 Nf8–/+) 9...0–0 10.0–0 Re8 11.d4 e4 12.Nh2 Nf8 13.Nd2 Ng6 14.Re1 Qd7 15.Ndf1 Bd8 16.Ng4 Ng4 17.Bg4 f5 18.Bh5 Bc7 (18...Qe6 19.Nd2=) 19.Nh2 (19.Bg6 hg6 20.Qe2 Kh7=) 19...Qe7 (19...Qe6 20.Be2+=) 20.Bg6= hg6 21.f4 (21.Nf1!?=) 21...Qh4 22.Qe2 g5 23.Bc1 gf4 24.ef4 Bf4 25.Nf3 Qg3 26.Bf4 Qf4 27.Ne5 Re5 (27...Qg5 28.b5–/+) 28.de5 (28.Rf1 Qg5 29.de5 f4+=) 28...Qe5+= 29.Qh5 (29.Rad1 Be6+=) 29...Be6–/+ 30.Rad1 Qg3 31.Rf1 Rf8 32.Ra1 (32.a4 f4–/+) 32...d4 (32...f4 33.Rf2–+) 33.a4 (33.Rf2!?–+) 33...d3 (better is 33...f4 34.b5 f3–+) 34.Ra3?? (34.Rad1 Bd5 35.Rf5 Rf5 36.Qf5 e3 37.Qc8 Kh7 38.Qf5 Kh6–+) 34...g6 (better is 34...Bd5 35.Raa1 e3 36.Rf3–+) 35.Qh6 Bd5 36.Qf4 Qf4 37.Rf4 g5 (37...d2!? 38.Rf1 f4 39.Rd1–+) 38.Rf1 f4 39.b5 (39.Rd1–+) 39...d2 40.Rc3 (40.Rd1 e3 41.Rd3–+) 40...e3 41.Rd3 Bc4 42.Rd6 (42.Rd2 ed2 43.Rd1–+) 42...e2 43.Rg6 Kh7 0–1. Radwan,Jan (2000) – Mikrut,Dariusz (2385), Podhale ch Poland, 2002.

7.c5 Qe6 8.Nc3 f5 9.Be2 Ngf6 10.d4 h6 11.de5 Ne5 12.Ne5 Qe5 13.0–0 0–0 14.Qb3 Qe6 15.Bf3 Kh8 (better is 15...Ne4!? 16.Rfd1 Qf7=) 16.Ne2+= Ne4? (better is 16...Bd7+=) 17.Nf4+– Qf7?? (better is 17...Qd7 18.Ng6 Kh7 19.Nf8 Bf8+–) 18.Rad1 (better is 18.Bh5 Nd2 19.Qd3 Nf1 20.Bf7 Rf7 21.Rf1+–) 18...Bf6? (better is 18...Nf6+/–) 19.Bh5+– Qc7 20.Ng6 Kg8 21.Nf8 (21.f3 Ng5 22.Nf8 Kf8+–) 21...Kf8 (21...Bb2 22.Qb2 Kf8 23.f3+–) 22.Bf3 (22.f3!? Ng5+–) 22...Ng5 23.Bf6 Nf3 24.gf3 (24.gf3 gf6 25.Kh1+–) 1–0. cristero (2460) – justforfun (2510), net–chess.com, 2015.

7.cd5 Qd5 8.Nc3 Qe6 9.d4 Ngf6 10.Be2 (10.Bd3 0–0+=) 10...h6 (10...e4 11.Nd2+=) 11.0–0 0–0 12.Qc2 Bd6 13.Bd3 ed4 14.Nd4 Qe5 15.Nf3 Qh5 16.Ne2 Ne5 17.Be5 Be5 18.Ne5 Qe5 19.Nd4 Be6 20.Ne6 Qe6 21.Bc4 Qe5 22.h3 ½–½. Schirmer,Michael – Koster,N, corr ICCF, 1992.

7.cd5 cd5

8.Qa4 Bf6 9.Nc3 (9.d4 e4 10.Ne5 Be7=) 9...Ne7 10.Rc1 0–0 11.Nb5 Qb6 12.Qb3 (12.Nc7 Rb8=) 12...e4 13.Nfd4 Be5 14.f4 ef3 15.Nf3 Bb2 16.Qb2 Nf6 (16...a6 17.Nc7 Ra7 18.Qd4+=) 17.Be2 (17.Qd4 Bd7+=) 17...Bd7 (17...Bg4 18.0–0+=) 18.Nbd4 a5 19.b5 Qd6 (19...Rac8 20.0–0+=) 20.0–0 Rfc8 (20...Rac8 21.Qb3+=) 21.a4 (21.Qb3 Rc1 22.Rc1 Rc8 23.Rc8 Bc8=) 21...Ne4 22.Rc8 (22.d3 Rc1 23.Rc1 Nc5=) 22...Rc8= 23.Rc1 Rc1 24.Qc1 Qc5 25.Qc5 Nc5 26.Bd1 Nc8 (26...Bf5 27.Nf5 Nf5 28.Bc2=) 27.Ne2 (27.Ne5 Nb6=) 27...Nb6 28.Nc3 Bf5 29.Ne1 (29.d4 Ne4 30.Ne4 Be4=) 29...Be4 (29...Ne4 30.Nb1+=) 30.Kf2 (30.d4 Ncd7=) 30...Kf8 (30...Bg6 31.Nf3=) 31.Ke2 (31.d4 Ncd7=) 31...Ke7 (31...Bf5 32.d3=) 32.d3 (32.d4 Ncd7=) 32...Bg6 (32...Bf5 33.Bc2=) 33.Kd2 (33.Bc2 Ne6=) 33...Kd6 34.Bc2 Bh5 (34...Ne6 35.Nf3=) 35.Nf3 Bf3 36.gf3 g6 (36...h6 37.d4 Nc4 38.Ke2+=) 37.d4 Ne6 38.Bb3 Attacking the isolated pawn on d5 (38.Kd3 h5=) 38...f5 (38...h5 39.Kd3=) 39.Kd3 (39.f4 h6=) 39...Ng5 40.Kc2?? (40.Bd1 Nh3=) 40...Ne6?? (better is 40...Nf3 41.h3 Ng1–+) 41.h4 (41.Ne2 h6=) 41...f4+= 42.Kd3 fe3 43.Ke3 (43.Ne2 Ng7 44.Ng3 Nc4 45.Bc4 dc4 46.Kc4 Nf5 47.Ne4 Ke7+=) 43...Ng7+= 44.Bc2 Nc4 45.Kf2 Ke6 (45...Nh5 46.Ne2=) 46.Bb1 (46.f4 Kd6=) 46...Nb6 47.Kg3 Kf6 (47...Kd6 48.Bc2=) 48.Ba2 (48.Kg4 Ke7 49.Kf4 Nh5 50.Kg5 Nf6=) 48...Nf5+= 49.Kg4 (49.Kf4!? Ke6 50.h5+=) 49...Ke6–/+ (49...Nd4?! 50.Bd5 Nd5 51.Nd5 Ke6 52.Ne3=) 50.Ne4 (50.h5!?–/+) 50...Na4–+ (50...Nd4?! 51.Nc5 Ke7 52.Nb7 Na4 53.Bd5–/+) 51.Ng5 (51.Bb3 Nb6 52.Nc5 Ke7–+) 51...Kd6 (51...Kf6 52.Nh7 Kg7 53.Bd5 Ne3 54.Kf4 Nd5 55.Ke5–+) 52.Nh7 (52.Bb1 h5 (worse is 52...Nd4 53.b6–+) 53.Kh3 Nc3–+ (53...Nd4?! 54.Bg6 Nc3 55.Bh5–+)) 52...Nc3 (52...Nd4?! 53.Bb1 Nc3 54.Bg6–+) 53.Bb3 (53.h5 Na2 54.hg6–+) 53...Nd4 54.Ba4 (54.Bd5 Nd5 55.Ng5 a4 56.Ne4 Ke7–+) 54...Na4 (54...Ke6 55.Nf8 Kf7 56.Nd7 Na4 57.f4–+) 55.Nf8 Nc5 56.Ng6 Nd7 57.h5 Nf6 58.Kg5 (58.Kh4 a4 59.Kg5 Nh5 60.Kh5 a3–+) 58...Nh5! 59.Kh5 (59.Nh8 Ng7 60.Nf7 Kc5–+) 59...Nf3 (better is 59...a4 60.f4 a3 61.b6–+) 60.Nf4 a4 61.Nd3 (61.Ne2 a3 62.Nc1 d4–+) 61...a3 62.Nb4 Kc5 63.Na2 Kb5 64.Kg4 Nd4 65.Kf4 Kc4 66.Ke3 Nc2 67.Kd2 (67.Ke2 Nb4 68.Nc1 Nd3–+) 67...Nb4 68.Nc1 a2 (68...a2 69.Na2 Na2–+; 68...b5 69.Kd1–+) 0–1. Klasmeier,Hartmut (1990) – Scharfenberg,Michael (2015), NRW Klasse, 2005.

8.Bb5 f6 =.

8.Nc3 Ngf6 9.Nb5 Qb8 10.Rc1 Bd6?? (better is 10...0–0 11.Nc7 Bd6 12.Na8 Qa8+–) 11.Rc8!+– (11...Ke7 12.Rb8 Bb8 13.d4+–) 1–0. Sternik,Ryszard – Nowicki,Andrzej, corr Poland–34ch sf/I, 1991.

8.Nc3 Ngf6? 9.d4 e4 10.Nb5 =.

8.Nc3 a6

9.Qb3 Ngf6 10.d4 e4 11.Ne5 (11.Nd2) 11...Ne5 12.de Qe5 13.Rd1 Be6 14.Nd5 Bd5 15.Qa4 Bc6 16.Qc6 bc 17.Be5 a5! 18.b5 Ba3 19.b6 Bb4 20.Ke2 Ke7 21.b7 Rae8 22.b8Q Rb8 23.Bb8 Rb8.

9.Rc1 Ngf6 10.Qa4 Rb8 (10...Qb8=) 11.Nd5 (better is 11.Ne4! de4 12.Be5+=) 11...Qd5+= (11...Nd5? 12.Be5 Qe6 13.Bb8+–) 12.Bc4 b5 13.Bd5 ba4 14.Bc6 0–0 (14...e4!? 15.Be5 0–0 16.Bb8 Nb8=) 15.Ne5= Nb6 16.Nc4 (16.Bf3 Nfd5=) 16...Nc4 17.Rc4 Be6 18.Rc1 Bb3 19.Be5 Rbc8 20.0–0 (20.Ke2 a5 21.Bf6 Bf6 22.ba5 Bb2–/+) 20...Rfd8 (20...a5 21.b5 Rfd8 22.b6 Ba3 23.b7 Bc1 24.bc8Q Rc8 25.Rc1–+) 21.d4+= Nd5 22.e4 Nb6 23.Bb7? (better is 23.d5!?+=) 23...Rc1–+ 24.Rc1 Nc4 25.Ba6 Ne5 (better is 25...Na3!? 26.Rc7 Bb4–+) 26.de5–/+ Rd1 (better is 26...Rd2!?–/+) 27.Rd1= Bd1 28.f4 Bc2 29.Bb5 (29.Bb7 Bd8 30.Kf2 Bb6 31.Ke2 Bd4=) 29...Bb3 (29...Bd8!?+=) 30.Kf2= Bb4! 31.Ba4 (31.ab4 a3) 31...Bc5 32.Kf3. Wagner,G – Nadenau,Oskar, Badenweiler op, 1988.

9.d3 Ngf6 10.Be2 0–0 11.0–0 b6 12.Qd2 Bb7 13.h3 Rfd8 14.Rac1 Ne8 (14...Rac8 15.d4 e4 16.Ng5=) 15.Bd1 (15.d4 e4 16.Ne5 Ne5 17.de5 Qe5=+) 15...f5 (15...Rac8 16.Be2=) 16.Bb3= Kh8 17.Rfd1 (17.d4 e4 18.Ne5 Ne5 19.de5 Qe5=) 17...Nf8 (17...d4!? 18.Nb1 a5=+) 18.Qe2 (18.d4 e4 19.Ne5 Kg8+=) 18...Ng6= 19.d4 e4 20.Ne5 Qe6 21.Na4 Bg5? (better is 21...Rac8!?=) 22.Qh5 (22.Nb6 Qb6 23.Nf7 Kg8 24.Ng5=) 22...Bh6 23.g4 fg4 24.hg4 (24.Qg4 Rd6 25.Qe6 Re6 26.Nf7 Kg8 27.Nh6 gh6+/–) 24...Nf6 (24...Ne5!? 25.de5 g5+=) 25.Qf5+/– Qe8 26.Ng6 Qg6 27.Qg6+– hg6 28.Nb6 Rab8 29.Rc5 Rd6 30.Na4 Ng4 31.Rc7 Rf6+= 32.Nc5 Rf2 33.Bc1 Rbf8? 34.Nb7?? R8f3 35.Rc2 Rg3 36.Kh1 Rf5 37.Rg2 Rh3–+ 38.Kg1 Ne3 39.Rg6 Kh7 (40.Be3 Kg6 41.Bh6 Rb3=+ (41...gh6?! 42.Nc5=+; 41...Rh6?! 42.Rd2=); 39...Nd1 40.Rh6 gh6 41.Bd1–+) 0–1. Sternik,Ryszard – Wydrowski,Leszek, corr ch34–Poland, 1991.

9.d4 e4 10.Nd2 Ngf6 11.Be2 b6 (11...0–0 12.Rc1=) 12.b5 (12.Rc1 0–0=) 12...a5 (12...0–0 13.Qa4=+) 13.a4 Bb7 (13...0–0!?=) 14.Ba3+= Qe6 (14...Qc7 15.Be7 Ke7 16.Rc1+/–) 15.Qb3 (15.Be7 Qe7 16.Rc1 0–0+=) 15...0–0 (15...Ba3 16.Ra3 0–0 17.0–0=) 16.Be7 Qe7 17.0–0 Rfc8 (17...Rac8 18.Rac1=) 18.Rfc1 (18.Rac1 Qe6+=) 18…Rc7 ½–½. Brinkmann,Wilhelm – Meyer,U, corr, 1995.

9.d4 Ngf6 10.Nb5+/– Qb6 (10...ab5 11.de5 Ne5 (11...Qa6 12.ef6 Nf6 13.Qd3 Bd7 14.Be2 0–0+/–) 12.Ne5 Qa6 13.Bd3 0–0 14.0–0 Ne4+/–) 11.de5 Ne5 (11...ab5 12.ef6 Nf6 13.Qd4 Qa6 14.a4 Qd6+/–) 12.Ne5 ab5 13.Qd3 (13.Qd4 Qd4 14.Bb5 Bd7+/–) 13...0–0 14.Qb5 (14.Be2 Qe6+/–) 14...Qe6 15.Be2 b6 (15...Ne4 16.Rc1+/–) 16.Nc6 Ba6 (better is 16...Bd8!?+/–) 17.Ne7+– (17.Qb6?! Bd8 18.Qc5 Be2 19.Ke2 Ne4+/–) 17...Qe7 18.Qb6 Be2 19.Ke2 (19.Bf6 Qe4 20.Ke2 Qc2 21.Ke1 gf6 22.Qf6 Ra3 23.Ra3 Qc1 24.Ke2 Qa3+–) 19...d4 (better is 19...Ne4 20.Qd4 Qg5+/–) 20.Qd4 Rfd8 21.Qf4 Ra6 22.Rhd1 Rad6 (22...Re6 23.Rd8 Qd8 24.Rd1+–) 23.Rd6 (23.Rd6 Rd6 24.Rd1 Rd1 25.Kd1 Qd7 26.Ke2 Qb5 27.Ke1+–) 1–0. Buss,Michael – Bussers,Jean_Marie, corr ICCF TT/40–13, 1992.

8.Nc3 Bf6? –+

9.Nb5 Qb6 10.Rc1 Kd8 (10...Bd8 11.Ne5) 11.Nc7.

9.Nb5 Qb8

10.Rc1 Kd8 +–.

10.Rc1 Bd8??

11.Qb3 Nb6?? 12.Rc6 bc6+/– 13.Be5 (13.Be5 cb5 14.Bb8 Rb8 15.Bb5 Bd7 16.Bd7 Kd7 17.Ne5 Ke8 18.0–0+/–) 1–0. Kleinke – Busch, corr, 1982.

11.Qb3 Nb6?? 12.Be5 Nf6 13.Bb8 Rb8 14.Nd6 Kf8 15.Nc8 Nc8 16.d4 +–.

11.Qb3 Ne7 12.Be2 +=.

11.Rc8! (11...Qc8 12.Nd6 Kf8 13.Nc8 Rc8 14.Bb5+–) 1–0. Sokolski,Alexey – Krupski, 1960.

6.c4 Ngf6

7.Nc3 c6 8.Qc2 0–0 (8...a6 9.c5 Qc7 10.Be2=) 9.cd5 Nd5 10.Bd3 Nc3 (10...g6 11.Bc4 Nc3 12.Bc3+=) 11.dc3 (11.Bh7 Kh8 12.Bc3 g6 13.Bg6 fg6=+) 11...g6 12.g4 (12.c4 Qe6+=) 12...Rd8 13.Rd1 Qc7 14.h4 Nf8 15.Rg1 Be6 (15...c5 16.h5=) 16.g5 (16.c4 a5 17.Be5 Qc8=) 16...a5 17.Ke2 (17.h5 gh5 18.c4 Ng6=+) 17...b5=+ 18.Ke1 c5 19.Be4 Rd1 20.Kd1 Rd8 21.Kc1 cb4 (21...Bd6 22.ba5 Qa5 23.c4=+) 22.ab4 (22.cb4 Qc2 23.Bc2 ab4 24.ab4 Rc8 25.Be5 Bb4=) 22...ab4 (better is 22...Bd6!?–/+) 23.cb4= Qc2 (23...Qb6 24.Ne5 Bb4 25.Nc6=) 24.Kc2 (24.Bc2 Nd7=) 24...Rc8 25.Kb1 (25…Rc4 26.Bd3 Rb4 27.Ne5 Rh4 28.Nc6=) =. Jacewicz,Grzegorz – Figiel,Rafal, corr or02–022, 2002.

7.Nc3 c6 8.cd5 Nd5 9.Ne4 =.

7.c5 Qe6 8.d4 e4 9.Ne5 (9.Ng5!? Qg4 10.Qg4 Ng4 11.Nh3=) 9...Ne5–/+ 10.de5 (10.de5 Ng4 11.Be2–/+). Waibel,Ulrich (1830) – Eyssel,Marcus (2005), remoteschach.de, 2004.

5.e3 Ne7

6.Nc3 a5 =.

6.c4 a5 7.c5 Qf6 8.Bb5 =.

6.c4 g6 7.Nc3 c6 (7...Bg7 8.d4=) 8.cd5 Nd5 9.Ne4 Qe7 10.Qb3 Bg7 11.Be2 0–0 12.0–0 Kh8 (12...f5 13.Nc5=) 13.Rac1 (13.Bc4 N7b6=) 13...a5 (13...f5 14.Nc5=) 14.b5+= a4 15.Qc2 cb5 16.Bb5 N7b6 (16...f5 17.Nc3 Nc3 18.Qc3+=) 17.Nc5 Ra5 18.Be2 Bf5 19.e4 Rc8 20.ef5 Rac5 21.Qe4 Nf6 22.Qb4 Nfd5 23.Qg4 (23.Qe4 gf5 24.Qf5 Rc1 25.Rc1 Rc1 26.Bc1 Qf6 27.Qf6 Bf6=) 23...Rc1=+ 24.Rc1 Rc1 25.Bc1 Nf4 (25...e4 26.Ng5 Qc7 27.Nf7 Kg8 28.Bb2 Qf7 29.fg6 Qg6 30.Bg7 Qg4 31.Bg4 Kg7 32.Bf5–+) 26.Bf1 Qd7 27.d4 gf5 28.Qg3 Nh5 29.Qg5 (29...e4 30.Nh4+=; < 29.Ne5 Ng3 30.Nd7 A) < 30...Bd4 31.Nb6 (31.hg3?! Nd7 32.Bd3 Kg7=) 31...Nf1 32.Nd5+/– (32.Kf1?! Bb6 33.Bb2 Kg8=; < 32.Na4 b5+=); B) 30...Nd7 31.hg3 Bd4=) 1–0. Piszcz,Kazimierz – Pilczuk, corr 1. AMM Poland, 1991.

6.d4 e4 7.Ne5 Ne5 8.de5 Qe6 9.Bb5 c6 10.Be2 Ng6 11.Qd4 Be7 12.0–0 f6 13.c4 fe5 14.Qc3 0–0 15.cd5 cd5 16.Qb3 Kh8 17.Nd2 a5 18.b5 Bc5 19.Rac1 b6 20.f4? ef3! 21.Nf3 a4 22.Qc3 d4! 23.ed4? ed4–+ 24.Nd4 Qe2 25.Rf8 Nf8 26.Qc2 Qc2 27.Rc2 Bf5 28.Rd2?? Rd8 29.Kf1 Bd4 30.Rd4 Rd4 31.Bd4 Bd3 32.Kf2 Nd7 33.Ke3 Bb5 34.Kf4 Kg8 35.g4 Kf7 36.h4 g6 37.g5 Ke6 38.Ke4 Bc6 39.Kf4 Kd5 40.Bb2 b5 41.Kg4 Ne5 42.Kg3 Nc4 43.Bc1 Ke4 44.h5 gh5 45.Kh4 Be8 46.Kg3 Kf5 47.Kh4 Ke4 48.Kg3 Kd3 49.Kf4 Kc2 0–1. bratek55 – brunowilbert (1760), kurnik, 2011.

6.Be2 g6 7.0–0 Bg7 8.c4 c6 9.Nc3 0–0 10.Qb3 b6 11.Rac1 Bb7 12.Rfd1 Rab8 13.Bf1 d4 (better is 13...e4!? 14.Nd4 Nf6=) 14.Ne4+/– Qe6 15.Nfg5 (better is 15.ed4 c5 16.d5+/–) 15...Qf5?? (15...Qg4 16.ed4 ed4 17.Re1=) 16.d3?? (better is 16.g3 c5 17.Bh3 Qh3 18.Nh3 Be4 19.Ng5+–) 16...h6 17.Nf3 c5 18.Nd6 Qe6 19.Nb7 Rb7 20.ed4 cd4 21.Re1 Qd6 22.g3 f5?? 23.Bg2 Rc7? 24.a4 Nc6?? 25.Ba3 Ne7? 26.b5?? Nc5+= 27.Re2?? Re8?? 28.Rce1+= Nc8 29.Bc5 bc5 30.a5 Rce7 31.Nh4 Kh7 32.Bd5 Bf6 33.Ng2 Kg7 34.Qb2 1–0. elsh1403 – wolfgdedengi, kurnik, 2011.

6.c4 c6

7.c5 Qc7 8.Be2 g6 9.Ng5 Bg7 10.f4 0–0 11.0–0 h6 12.Nh3 Nf5 13.Bg4 Nb8 14.fe5 Be5 15.Be5 Qe5 16.Nc3? (better is 16.Ra2!?=) 16...Ne3!–/+ 17.Qf3?? Ng4–+ 18.Rae1 Qh2# 0–1. elsh1403 – brunowilbert (1615), kurnik, 2012.

7.cd5 cd5 8.Nc3+= a6 9.Be2 (9.Rc1 Nc6+=) 9...g6 (9...Nb6 10.Na4 Nd7 11.Rc1+=) 10.0–0 (10.d4 e4 11.Nd2 Bg7+=) 10...Bg7 11.d3 (11.d4 e4 12.Nd2 Nf5+=) 11...0–0= 12.Qd2 (12.d4 e4 13.Nd2 Nf5=) 12...b6 13.d4 (13.Rfc1 f5=) 13...e4 14.Ne1 f5 (14...Nf6 15.f3=) 15.f3 Bb7 (15...Nf6 16.Rc1=) 16.Rc1 (16.b5 Nf6=) 16...b5 17.fe4 (17.Qc2 Bh6 18.Nd1 Rac8=) 17...fe4 18.a4 ba4 0–1. mr (2260) – sisterofmercy (2385), net–chess.com, 2009.

7.cd5 Nd5 8.Qc2 =.

5.e3 f5

6.Nc3 a6 =.

6.c4 Ngf6 7.Nc3 c6 8.cd5 Nd5 9.Nd5 Qd5 10.Qc2 Qe6 (10...a5 11.Bc4 Qe4 12.d3+=) 11.Bc4 (11.e4 fe4 12.Qe4 Bd6+=) 11...Qf6 (11...Qg6 12.Ne5 Qg2 13.Rf1 Ne5 14.Be5+=) 12.0–0 Bd6 13.e4 Nb6 (13...f4 14.Rfd1+/–) 14.Ba2 (14.Bb3 a5+=) 14...fe4 (14...f4!?+=) 15.Ne5!+/– Bf5?? (15...Qe5 16.Be5) 16.Nf7+– (16...Bh2 17.Kh2 Qh4 18.Kg1+–) 1–0. pcmvr (2800) – rumiek (2570), net–chess.com, 2006.

6.d4 e4 7.Nfd2 Ndf6 8.c4 c6 9.Nc3 Ne7 10.Be2 Be6 11.Qb3 a6 12.a4 White prepares the advance b5 (12.c5 Qc7+=) 12...Ng6 (12...dc4 13.Nc4 Qd7 14.0–0=) 13.Ba3 Qd7 14.cd5 cd5 15.b5 Be7 16.0–0 0–0 17.Be7 Qe7 18.Qa3 Qa3 19.Ra3 f4 20.Nb3 Nd7 21.Rc1 f3 (21...fe3 22.fe3 Ne7 23.a5=) 22.gf3+= ef3 23.Bf1 Nh4 24.e4 de4 25.Ne4 Bb3 26.Rb3 Rf4 27.Nc5 (27.ba6!? Re4 28.ab7+=) 27...Rg4= 28.Kh1 Nc5 29.Bc4 Kf8 30.dc5 Re8 (30...ab5 31.Bb5 (31.ab5?? Rc4 32.Rbb1 Rc1 33.Rc1 Ke7–+) 31...Rd4 32.c6 bc6 33.Bc6=) 31.Rbc3 (31.h3 Rg6+/–) 31...Rge4 (better is 31...ab5!? 32.ab5 Rg5+=) 32.ba6+/– Re1 (32...ba6!? 33.c6 R8e7+–) 33.Bf1+– ba6 34.c6 Rc1 35.Rc1 Rc8 (35...Nf5 36.Ba6 Nd6+–) 36.c7 (36.Ba6?! Rc7 37.Bb7 Nf5+–) 36...Nf5 (36...a5 37.Bh3 Rc7 38.Rc7+–) 37.Ba6 (37.Ba6 Re8 38.c8Q Rc8 39.Bc8+–) 1–0. Osmak,Iulija – Katanova,Marina, EYg10, Herceg Novi MNE, 2008.

6.c4 c6

7.cd5 cd5 8.Qa4 Kf7 9.Nc3 Nb6 (better is 9...Ne7!?+=) 10.Qa5+/– e4 11.Nb5 Qe7?? (better is 11...Qd8 12.Ne5 Ke7 13.Na7 Ke6+–) 12.Ne5 (12.Na7?! ef3 13.Nc8 Rc8 14.Qb6 fg2 15.Bg2 Qd7+–) 12...Ke8 13.Rc1 Nf6 14.Nc7 (14.Nc7 Qc7 15.Rc7+–) 1–0. pcmvr (2860) – thotares (2500), net–chess.com, 2011.

7.cd5 Qd5 8.Nc3 Qf7 +=.

7.Be2 dc4 8.Bc4 Ngf6 9.0–0 =.

7.Be2 Ngf6 8.d4 e4 9.Ne5 Qe6 10.cd5 cd5 11.0–0 (11.Nc3 a6=) 11...Bd6+= 12.Bb5 (12.Nd7 Bd7 (worse is 12...Kd7 13.Nc3+=) 13.Nc3 0–0+=) 12...0–0 13.Bd7 Bd7 14.Nd2 (14.Qb3 Bb5 15.Rd1 Ng4+=) 14...Ng4–/+ 15.Ng4 (better is 15.Rc1!?–/+) 15...fg4–+ 16.Re1 (better is 16.Qe2–+) 16...Rf2 17.Kf2 Rf8 18.Nf3 (18.Ke2 Bb5 19.Nc4 Bc4 20.Kd2 Rf2 21.Kc1–+) 18...gf3 (18...ef3?! 19.g3–+) 19.gf3 Qh6 (19...Qh3 20.Re2 ef3 21.Ke1 fe2 22.Qe2–+) 20.f4 (20.Rh1 ef3 21.Qg1 Qh4 22.Qg3 Qe4 23.Rac1 Qd3 24.Rhe1 Bg3 25.hg3 Qd2 26.Re2 Qe2 27.Kg1 Qg2) 20...Qh2 0–1. Kocela,J – Chmielinski,Maciej (2095), Poland–chT region, 1999.

5.e3 f6

6.c4 Ne7 7.Be2 Ng6 8.Nc3 c6 9.0–0 d4 10.ed4 ed4 11.Ne4 Qc7 12.Nd4 Be7? (better is 12...Nf4+–) 13.Ne6 Qb8 14.Ng7 (14.Ng7 Kf7 15.Nh5+–) 1–0. ramoschessbrasil – geraldbuckley (1885), net–chess.com, 2011.

6.d4 c6 7.c4+= e4 8.Nfd2 Ne7 9.cd5 (9.Nc3 f5+=) 9...cd5 (< 9...Qd5 10.Nc3 Qf7 11.Nde4+–) 10.Nc3 a6 11.Be2 (11.Rc1 b6+=) 11...g6 (11...f5 12.Rc1+=) 12.b5 Bg7 (12...f5 13.a4+=) 13.a4 Qe6 14.Ba3 f5 15.a5 (15.Qb3 Nf6+/–) 15...Kf7 (15...Nf6 16.Qb3+/–) 16.Qb3 Nf6 17.Nc4 Rd8 18.Nb6 Rb8 19.0–0 g5 (19...ab5 20.Nb5 f4 21.ef4+–) 20.Rac1 (20.Be7 Qe7 21.Ncd5 Nd5 22.Nd5 Qe6+–) 20...f4 (20...Bf8 21.Be7 Qe7 22.Ncd5 (22.Nc8?! Rdc8 23.Rb1 Qa3 24.Qa3 Ba3=) 22...Nd5 A) 23.Rc8?! Rbc8 24.Nc8 Qb4+/–; B) 23.Nc8?! Qa3 24.Bc4 Qb3 25.Bb3 Ke8+/– (25...ab5? 26.Nb6+–); C) 23.Nd5+–) 21.Be7 Ke7 (better is 21...Qe7 22.Ncd5 Nd5+–) 22.ba6 (22.Nc8?! Rdc8 23.Na4 Nd7+/–) 22...ba6 23.Nbd5! Nd5 (23...Qd5 24.Nd5) 24.Qb8 (24...Nc3 25.Qc7 Bd7 26.Qc3+–) 1–0. pcmvr (2765) – cruyce (2750), net–chess.com, 2006.

6.d4 e4 7.Nfd2 =.

6.c4 c6

7.d4 e4 8.Nfd2 a6 9.Nc3 f5 10.b5 (10.Qh5 g6 11.Qd1 Bh6+=) 10...Ngf6 ½–½. Gunawan,Ronny (2370) – Cheah,Eric (2175), 7th Penang Heritage City International, 2015.

7.Be2 Ne7 8.Qc2 (8.d4 dc4 9.Bc4 e4=) 8...g6 (8...dc4 9.Bc4 Nb6 10.Be2=) 9.d3 (9.Nc3 Bg7+=) 9...Bg7 10.Nbd2 Nf8 (10...0–0 11.c5 Qe6 12.0–0=) 11.e4 (11.0–0 Nd7+=) 11...Be6 (11...Ne6 12.0–0=) 12.d4+= White plans c5 12...Nd7 13.de5 fe5 14.Ng5 Bg8 15.c5 (15.cd5!? cd5 16.ed5 Bd5 17.Nde4+=) 15...Qf6= 16.Ngf3 Be6 17.h3 0–0 18.Nf1 (18.Rd1 Rad8=) 18...b5 (18...Rad8 19.Rd1+=) 19.Ng3 (19.a4 ba4 20.Ra4 d4=) 19...h6 (19...d4 20.Bc1+=) 20.0–0 (20.ed5 Nd5 21.Ne4 Qf5=) 20...d4+= 21.Bc1 Qf7 22.Bd2 g5 (22...Bb3 23.Qc1 Kh7 24.Ne1+=) 23.Nh2 (23.Bg5!? Rad8 24.Bh4+=) 23...Ng6 (23...Rad8 24.Bh5 Ng6 25.Nf5=) 24.Bg4 (24.Nf5 Bf5 25.ef5 Ne7= (25...Qf5? 26.Bd3 Qe6 27.Bg6+–)) 24...Bc4 (24...Bb3 25.Qc1+=) 25.Be2+= Nh4 (25...a5 26.Bc4 bc4 27.Nf5+=) 26.Rac1 Bb3 27.Qb2 (27.Bh5 Bc2 28.Bf7 Kf7 29.Rc2 Rfd8+=) 27...Be6 28.Bg4 Bc4 29.Be2 (29.Bh5 Qe7 30.Be2 Be6=) 29...Nf6 30.Qc2 Be2 (30...Bb3 31.Qb2+=) 31.Ne2 Rad8 32.Qd3 Qe6 33.Ng3 Kh8 34.Rce1 (34.a4 ba4 35.Ra1 Qb3 36.Qb3 ab3=) 34...Rg8 (34...Qc4 35.Qb1=) 35.f3 (35.Nf3 Nf3 36.Qf3 Rgf8=) 35...Qc4 36.Qb1 Bf8 (36...Rgf8 37.Rc1 Qe6 38.Ng4=) 37.Rc1 (37.Nf5 Ng6=) 37...Qe6 38.Qd3 Ng6 39.Nf5 Nf4 40.Bf4 gf4 41.Rfd1 h5 42.Kf2 (42.Rd2 a5=) 42...Ne8 43.Rg1 (43.Kg1 Ng7=) 43...Bh6 (43...Ng7 44.Ke1+=) 44.Ke1 (44.a4 a6=) 44...Bg5 45.Nf1 (45.h4 Be7+=) 45...Ng7 46.Ng7 Rg7 47.Kd1 Bh4 48.Rc2 Rdg8 49.Kc1 (49.Rd2 Qc4 50.Qc2 a5–/+) 49...a5! 50.Kb2 (50.ba5 Be1 Decoy) 50...Ra7 (50...ab4 51.ab4 Be1 52.Nd2–+) 51.Qb3 (51.ba5 Ra5 52.Nd2 Ra7–+) 51...Qg6 (51...Qd7 52.ba5 d3 53.Rc1–+) 52.Re2 Rga8 53.Nd2 (53.g4 fg3 54.Reg2 ab4 55.ab4 Ra1 56.Ng3 Rg1 57.Rg1 Bg3–+) 53...ab4 54.ab4 Ra2! 55.Qa2 Ra2 56.Ka2 d3 0–1. Krafzik,Joachim (1810) – Shapiro,Yosip (1995), 2rd Berlin Germany, Senior Championship, 2010.

5.e3 Ngf6

6.Bb5 c6 7.Be2 =+.

6.Nc3 e4 7.Nb5 Qb6 8.Bd4 Qc6 (8...c5 9.bc5 Bc5 10.Bc5 Nc5 11.Nfd4=) 9.Na7 (9.Ne5 Ne5 10.Be5+=) 9...Qe6?? (better is 9...Ra7 10.b5 Qe6 11.Ba7 ef3 12.Qf3 b6+=) 10.Nb5 (worse is 10.Nc8 ef3 11.Na7 c6+=) 10...Bd6 11.Ng5 Qf5 12.Nd6 cd6 13.Nh3 0–0 14.Be2 Ne5 15.d3 Bd7 16.Rf1 Neg4 17.de4 de4 18.Bf6 Nf6 19.f3 (better is 19.Qd6!? Ra4 20.Bc4+/–) 19...ef3 20.Rf3 Qe5 21.Nf4 Qc3 22.Kf1 Ra3 23.Ra3 Qa3 24.Qd6 Bc6 25.Rg3? (better is 25.Rh3+=) 25...Ne4–+ 26.Rg7 (26.Qd4 Qc1 27.Bd1 Ng3 28.hg3–+) 26...Kg7 27.Nh5 Kg8 28.Qe5 (28.Nf6 Nf6 29.Qg3 Kh8 30.Qe5 Qc1 31.Kf2 Qc2 32.Qf6 Kg8 33.b5–+) 28...f6 (28...Qc1 29.Bd1 Qd1) 29.Bc4 (29.Qd4 Qc1 30.Bd1–+) 29...Kh8 30.Qe7 Qc1 31.Ke2 Qc2 32.Kf3 Qf2 33.Kg4 f5 (33...Qg2 34.Kf4 Qf2 35.Kg4 f5 36.Kh3 Qf3 37.Ng3 Nf2 38.Kh4 Qg4) 34.Kh3–+ Qe3 35.g3 (35.Kh4 Qh6 36.Qe5 Nf6 37.Be2 Bg2 38.Qf4 Qf4 39.Nf4–+) 35...Ng5 0–1. Kappel,Ray – Evans,Stanley, Lechenicher SchachServer, 2011.

6.c4 a5 7.Nc3 White is in command 7...ab4 8.Nb5 Qb6 9.ab4 (worse is 9.Ne5 c6 10.Nd7 Bd7+=) 9...Ra1 10.Qa1 e5 seems the pivot of the position 10...c6 (10...Bb4 11.Ne5 0–0 12.Nd7 Bd7 13.Bd4+=) 11.Na7+/– Qd8 (11...e4 12.Nc8 Qc7 13.cd5 ef3 14.dc6 bc6 15.Qa8+=) 12.Ne5 Ne5 13.Be5 Be6 14.Bf6 Qf6 15.Qf6 gf6 16.c5 Kd7 (16...f5 17.d4+/–) 17.d4+– Be7 18.b5 Ra8 (18...Rg8 19.g3+–) 19.b6 Bf5 20.Be2 Rg8 21.g3 (21.g3 Be4 22.f3+–) 1–0. Scholbach,Tillmann (1965) – Bruckmayr,Friedrich (2190), IECG, 2000.

6.c4 c5 7.bc5 Nc5 (better is 7...Qc5!? 8.Ne5 Ne5 9.Be5 dc4 10.Bf6 gf6+=) 8.Be5+/– Qb6 (8...Qd8 9.Nc3 dc4 10.Bc4+/–) 9.Nc3+– Bf5 (9...dc4 10.Bc4 Be7 11.Nb5+–) 10.Bf6 (10.Nd5?! Nd5 11.cd5 Rd8+/–) 10...gf6 (better is 10...Qf6 11.Nd5 Qd8+–) 11.Nd5 (11.cd5?! Nd3 12.Bd3 Bd3+–) 11...Qb2 (11...Qa5+–) 12.Nd4 Nd3 (12...Be4 13.Nc7 Kd7 14.Na8+–) 13.Bd3 (13.Ke2 Bg6 14.Nc7 Kd7 15.Na8 Bc5+–) 13...Bd3 14.Nc7 Kd8 15.Na8 Bc4 16.Qc1 Qc1 17.Rc1 Ba6 18.Rc3 Bd6 19.Nf5 Bb8 20.d3 Re8 21.Kd2 b6 22.d4 Bb7 23.Rhc1 Kd7 24.Rc7! Bc7 25.Rc7 Theme: Double Attack 25...Kd8 26.Rb7 (26.Rb7 Re6 27.Ra7+–) 1–0. Ventimiglia,Charles – Brown,Parrish, IECG, 1998.

6.c4 Be7 7.Nc3 0–0 8.Nb5 Qc6 9.Be5 dc4 10.Nfd4 Qd5 11.Bf6 Nf6 12.Nc7 Qg5 13.Na8 Bg4 14.f3 Ra8 15.fg4 Ng4 16.Bc4 Nh2 17.Bf7 Kf7 18.Qb3 Kg6 19.Qe6 Bf6 20.Qe4 1–0. marus1 – SSV1, internet, 2001.

6.d3 a5 7.b5 =+.

6.d3 b6 7.Nbd2 Bb7 (7...c5 8.bc5 bc5 9.c4=) 8.Be2 c5 9.bc5 bc5 10.0–0 Qc7 11.c4 d4 12.Ng5 Be7 13.Bf3 0–0 14.Bb7 Qb7 15.Rb1 Qc6 16.Qf3 Qf3 17.Ngf3 Rab8 18.Ba1 Bd6 19.Rfe1 Rb6 20.Kf1 Rfb8 21.Ke2 Kf8 ½–½. Mathonia,Claude (2215) – Villing,Dieter (2160), Oberliga Baden, 2007.

6.d3 c6 7.Nbd2 g6 (7...Be7 8.Be2=+) 8.Be2 Bg7 9.c4 0–0 10.d4 e4 11.Ne5 Qe7 (11...Qe6 12.cd5 cd5 13.Nb3=) 12.0–0 (12.cd5 cd5 13.Qb3 Rd8=) 12...Ne5 13.de5 Nd7 14.cd5 cd5 15.f4 (15.Nb3 Ne5 16.Qd5 Be6–/+) 15...ef3=+ 16.Bf3 Ne5 17.Be5 (17.Bd5!? Nd3 18.Bg7 Qe3 19.Kh1 Kg7 20.Qf3 Qf3 21.Rf3=+) 17...Qe5–/+ 18.e4? (better is 18.Qb3 Be6 19.Rac1–/+) 18...Qd4 19.Kh1 Qa1 20.Qa1 Ba1 21.Ra1 d4 (21...a5 22.Rd1 ab4 23.ab4 de4 24.Ne4–+) 22.Nb3 Rd8 23.Rd1 d3 24.Nc1 (24.Nc5 d2 25.e5 Kf8–+) 24...d2 25.Nb3 Rd3 26.Nd2 Be6 27.Nf1 Ra3 28.e5 Rb8 (28...Rb3 29.Bb7 Rb8 30.Bc6–+) 29.Kg1 (29.Rd4 a5–+) 29...b5 30.Kf2 a5 31.ba5 (31.Nd2 ab4 32.Ne4 Rc8–+) 31...b4 32.a6 Ra6 33.Ke3 b3 0–1. Budzul,Robert – Kaniak,Andrzej, email 4AMM–09, 1997.

6.Be2 Qe6 7.d3 (7.Nc3 a6=) 7...a5 (7...Be7 8.c4+=) 8.b5= Bd6 9.Nbd2 c6 10.c4 cb5 11.cb5 0–0 12.0–0 (12.Rc1 Qe7 13.a4 Nb6+=) 12...Nb6 (12...a4 13.Qc2=) 13.a4 Qe7 14.Rc1 Bg4 15.h3 Bh5 16.g4 Bg6 Black intends e4 17.Nh4 Nfd7 18.Ng6 (18.Ndf3 Rac8+=) 18...fg6 19.d4 e4 20.Kg2 Bb8 (20...Rf7 21.Nb1+=) 21.Bc3 (21.Qb3 Rf7=) 21...Qa3 (21...Qd6 22.Rh1+=) 22.Qb3 Qd6 (worse is 22...Qa4 23.Qb2 Bd6 24.Ra1+/–) 23.Rh1 Rf2 24.Kf2 Qg3 25.Kf1 Bd6 (25...Bd6 26.Qa2 Rf8 27.Bf3 Nc4–+ (27...ef3?! 28.Ne4 Qg2 29.Qg2 fg2 30.Kg2 de4 31.Ba5–/+)) 0–1. Plock,Joerg – Benassi,Aspasio, corr b4/02/08, 2002.

6.Be5?? Ne5–+ 7.Ne5 Qe5 8.d4 Qe6 9.Nc3 a5 10.Rb1 ab4 11.ab4 Qb6 12.Qd3 Bd7 13.Be2 Bd6 (13...Bb4 14.0–0–+) 14.h3 (14.0–0 Bb4 15.Nd1 Ra5–+) 14...0–0 15.0–0 Ra3?? (better is 15...Bb4 16.Rb3 Qa5–+) 16.Nd5–/+ Rd3 (16...Nd5?! 17.Qa3 Bb4 18.Qb3=) 17.Nb6 Rc3 18.Nd7 Nd7 19.Bd3 Nb6 20.b5 Nd5 21.Ra1 Nb4 22.Be4 c6 (worse is 22...Nc2 23.Rac1+=) 23.bc6 bc6 24.Rfc1 f5 25.Bd3 f4 (25...Nd3?! 26.cd3 Rc1 27.Rc1–/+) 26.e4 c5 27.e5 Bc7 (27...Nd3?! 28.cd3 Rc1 29.Rc1=) 28.Be4 cd4 29.e6? (better is 29.Ra4 Nc6 30.e6–+) 29...Re8 30.Bf5 (30.Rd1 Bb6–+ (30...Re6?! 31.Rd4 Nc2 32.Ra8 Kf7 33.Rd7 Kf6 34.Rf8 Ke5 35.Bh7–+)) 30...g6 31.Ra4 Bd6 (31...gf5?! 32.Rb4 d3 33.Rd4 dc2 34.Rd2–+) 32.Bg4 (32.Be4 Re6 33.Re1 Re5–+ (worse is 33...Rc2 34.Bd5 Nd5 35.Re6–+)) 32...d3 33.Re1 dc2 34.Rc1 (34.Raa1 Nd3 35.Rf1 Bc5–+) 34...Nd3 35.Rd4 (35.Rc2 Rc2 36.Ra1–+) 35...Nc1 36.Rd6 Nd3 0–1. Yannick – PRIMAKOV, playchess.de, 2005.

6.Nc3 c6

7.d3 g6 8.h3 Bg7 9.Ra2 0–0 10.Be2 b6 11.g4 Bb7 12.Nh4 (12.g5 Ne8=) 12...Ne8 (12...d4 13.Ne4 Ne4 14.de4–+) 13.Nf3+= Nc7 14.h4 a5 15.Qa1 (15.ba5!? d4 16.Ne4+=) 15...ab4–/+ 16.ab4 Na6 (16...Na6 17.Qb1 d4–/+; 16...Qb4?! 17.Ba3 Ra3 18.Ra3+=) 0–1. Sablatura,Milan – Topolski,Pavel, corr ICCF VI/VII Cp, 1985.

7.Be2 Be7 8.0–0 0–0 9.d4 e4 10.Nd2 Bd8 11.f4 ef3 12.Rf3 Bc7 Threatening mate... how? 13.Nf1 b5 14.Qd3 a5 15.ba5 Re8 16.Ng3 Ra5 17.Raf1 (17.Qd2 Nb6–/+) 17...Ne4 18.Nb1 (18.Rf7 Ng3 19.hg3 Qg3–+) 18...Ndf6 (worse is 18...Ng3 19.Rg3 Ra6 20.Bg4–/+) 19.Bc3 Nc3 20.Qc3 Ne4 21.Qb4 (21.Qe1 Qh6 22.Bd3 Ng5–+) 21...Ng3 22.hg3 Bg4 23.Qd6 Bd6 24.R3f2 Be2 25.Re2 Bg3 26.Rd1 h5 27.Rd3 h4 28.Rc3 Re6 29.Rb3 g5 30.Nc3 f5 31.Na2 g4 32.Nb4 (32.Nc1 b4 33.Rb4 Ra3–+) 32...f4 33.Rc3 f3 34.gf3 gf3 35.Rf2 Bf2 36.Kf2 h3 37.Kf3 Ra7 38.Rb3 (38.Rd3 Rf6 39.Ke2 Rh6–+) 38...h2 (38...Rf6!? 39.Ke2 Raf7 40.Rb1 Rf2 41.Kd3–+) 39.Rb1 Ra3 40.Nd3 Rc3 41.Ne5 Rh6 42.Rh1 Rh3 43.Kg4 (43.Kf4 Rc2 44.Ng4 Rg2 45.Nh2 Rgh2–+) 43...Rce3 (43...Rce3 44.Kf4 Rc3–+) 0–1. Meisinger,Peter – Gohla,Ulf, DESC, 2000.

7.Be2 Be7 8.0–0 Nf8 9.d4 Ng6 (9...e4!? 10.Ne5 Ng6=) 10.de5 (10.Nb5!? Qb8 11.de5+/–) 10...Ne5+= 11.Ne5 (11.e4 Nf3 12.Bf3 de4 13.Ne4 Qf4+/–) 11...Qe5 12.Nb5 Qb8 13.Nd4 0–0 (14.c4 dc4 15.Bc4 Ng4+=; 13...Bd6 14.h3=). klim_bes – thotares (1685), internet, 2007.

6.c4 b6

7.Nc3 a6 8.cd5 Nd5 9.Ne4 Qg6 10.Ng3 Bd6 11.d4 e4 12.Nd2 (better is 12.Ne5 Be5 13.de5+=) 12...Bg3–/+ 13.hg3 Ne3! 14.fe3? (better is 14.Qb3!? Nf1 15.Nf1–/+) 14...Qg3–+ 15.Ke2 Nf6 16.Ne4 Bg4 17.Kd3 Ne4 18.Qc2 Nf2 19.Kd2 Nh1 20.Qc6 Ke7 21.Qe4 Be6 22.d5 (22.Qb7 Qf2 23.Be2 Ng3–+) 22...Rad8 23.Kc2 Rd5 24.Bc4 Nf2 (24...Nf2 25.Qf4 Rg5 26.Ba6 Qf4 27.ef4 Rg2–+) 0–1. Orsatti,Marcello (1765) – Alessandro,Sergio (1675), Udine DLF op, 2007. (=1.Nf3 d5 2.b4 Qd6 3.a3 e5 4.Bb2 Nd7 5.e3 Ngf6 6.c4 b6)

7.Nc3 c6 8.Qb3 (8.cd5!? Nd5 9.Qc2+=) 8...Ba6?? (better is 8...d4 9.ed4 ed4+=) 9.c5+/– (9.c5 bc5 10.Ba6+–) 1–0. Van Esbroeck – Sergeev, corr, 1993.

7.d4 (withdraw) 0–1. Sternik – B Stevenson, corr 6–2 Nr.296 Australia 1992.

7.cd5 Bb7 8.Qa4 e4 (8...c6 9.Nc3 Nd5 10.Nd5 Qd5 11.Qc2 Be7 12.Bc4 Qd6 13.d4) 9.Nd4 Nd5 10.Nc3 Nc3 11.Bc3 Qd5 12.Be2 Bd6 13.f3.

7.cd5 Bb7 8.Bb5 Qd5= (8...e4 9.Nd4 0–0–0 10.Nc6 Bc6 11.dc6 Ne5 12.Qa4 Re8 13.Be5; 8...0–0–0 9.Nc3 (9.0–0 Nd5 10.d3 c6 11.Bc4 Be7 12.Nc3 Kb8 13.Nd5) 9...Nd5 10.Rc1 Nc3 11.Rc3 e4 12.Nd4 Ne5 13.0–0) 9.Qe2 (9.Nc3 Qe6 10.d4 Bd6 11.de5 Be5 12.Ne5 Qe5 13.0–0) 9...Bd6 (9...a6 10.Bc4 Qd6 (10...Qc6 11.0–0 Be7 12.d4 ed4 13.Rc1) 11.Ng5= Nd5 12.Qf3 N7f6 13.Nc3; 9...e4 10.Nd4 Qg5 11.f4 ef3 12.Nf3 Qg4 13.0–0) 10.Nc3 (10.Bc4!? Qe4 11.Bf7 Ke7 (11...Kf8 12.Be6 Qc2 13.d3) 12.Qc4+/– (12.Bb3 Qg4 13.Qf1) 12...Qg4 13.Qg4) 10...Qe6= 11.e4 (11.d4 0–0 12.e4 (12.0–0 a5 13.d5) 12...a5 13.d5= (13.ba5 Ra5=); 11.0–0 0–0 12.Bc4 Bf3 13.gf3) 11...0–0 (11...a6 12.Bc4 (12.Ba4 0–0 13.0–0) 12...Qe7 (12...Qg4 13.h3) 13.h3+= (13.d4=)) 12.h3 (12.d4 a6 (12...a5 13.d5) 13.Bd7= (13.d5 Qg4 14.Bd7 Qd7=)) 12...c5 (12...a6 13.Bc4 Qe7 14.0–0+=; 12...Nh5 13.Qc4) 13.Bc4= Qe7 14.b5 h6 (14...Nh5 15.g3=) 15.d3 (15.Nh4 Rfd8+=) 15...Rfd8= 16.Nh4 Nf8 (16...Qf8 17.Nf5=) 17.Nf5+= Qd7 18.0–0 (18.Qf3!? N8h7 19.Qg3+=) 18...Ne6= 19.Nd1 (19.Qf3 Nd4 20.Nd4 ed4=) 19...Nf4 20.Qf3?? (20.Qe3 a6 21.Nc3 ab5 22.Nb5 Bb8=) 20...Bc7?? (20...Qf5 21.ef5 Bf3 22.gf3 Nh3 23.Kh1–+) 21.Nc3?? (21.Nde3+=) 21...Rf8?? (21...Qf5! 22.ef5 Bf3 23.gf3 Nd3 24.Bc1–+) 22.Rad1?? (22.Qg3 N4h5 23.Qe3 Rfd8+=) 22...Rad8?? (22...Qf5 23.ef5 Bf3 24.gf3 Nh3 25.Kh2 Nf4–+) 23.Ne2?? (better is 23.Qg3 N4h5 24.Qh4+=) 23...Ng6?? (better is 23...Qf5! 24.Nf4 Qf4 (24...ef4?! 25.ef5 Bf3 26.gf3=) 25.Qf4 ef4 26.Bf6 gf6–+) 24.Qg3 (better is 24.Nh6!? Kh7 25.Nf5+/–) 24...Bc8?? (better is 24...Kh7+=) 25.Qg6+– (25.Qg6 Ne8 26.Nh6 Kh8 27.Nf7 Rf7 28.Bf7+–) 1–0. Barreiro Pineiro,Jose (1975) – Palacios Gonzalez,Miguel, Adolfo Pedrido Mem, Vilagarcia de Arous, 2006.

7.cd5 Bb7 8.Nc3 Nd5 9.Nb5 Qf6+= 10.e4 a6 11.ed5 ab5 12.Bb5 Bd5 13.Bd7.

7.cd5 Nd5 A) 8.Qa4 c6 (8...e4 9.Nd4 Qg6 10.Nc3 Nc3 11.Bc3 Bd6 12.Bb5 Qg2 13.0–0–0) 9.Nc3 a5 10.Nd5 Qd5 11.Qc2 b5 12.e4 Qd6 13.Be2; B) 8.Qc2 B1) 8...Bb7 9.Nc3 (9.Bd3 Be7 10.Nc3 Nc3 11.Bc3 Qd5 12.Bb2 e4 13.Bc4) 9...Nc3 10.Bc3 0–0–0 11.Bd3 Be7 12.a4 Qd5 13.e4; B2) 8...Be7 9.Nc3 Nc3 10.Qc3 Bf6 11.Rc1 c5 12.Qd3 Qd3 13.Bd3; B3) 8...a5 9.Bb5 (9.Nc3 Nc3 10.dc3 Qc6 11.Qb3 Be7 12.Bc4 Qg6 13.0–0–0) 9...ab4 10.Ne5 Be7 11.Qf5 N5f6 12.Qf3 Qd5 13.Bc6; B4) 8...c5 9.bc5 (9.Bb5 cb4 10.Be5 b3 11.Qc6 Qc6 12.Bc6 b2 13.Ra2) 9...bc5 (9...Qc5 10.Nc3 Bb7 11.Bd3 Rc8 12.0–0 Bd6 13.Qa4) 10.Bc4+= (10.Nc3 Rb8 11.Bd3 Be7 12.0–0 h6 13.Nb5) 10...Rb8 11.0–0 Qg6 12.Bd3 Qb6 13.Ra2.

6.c4 dc4

7.Bc4 c6 8.Qb3 Qe7 9.0–0 =.

7.Bc4 Be7 8.0–0 (8.Qb3 0–0 9.Ng5 b5 10.Bf7 Kh8+/–) 8...e4 (8...0–0 9.Nc3 c5 10.d4 ed4 11.bc5 Nc5 12.Qd4=) 9.Nd4 (better is 9.Ng5 Ne5 10.Be5 Qe5 11.Nf7 (11.Bf7? Kd8–+) 11...Qa1 12.Nh8+/–) 9...Ne5?? (9...Nb6 10.Be2=) 10.Be2?? (better is 10.Nb5 Nc4 11.Nd6 Nd6 12.f3+–) 10...Neg4= 11.g3 0–0 12.Nc3 Re8 13.Rc1 c5 14.bc5 Qc5 15.Ne4!+– Qh5 16.Nf6 Bf6 17.h4 Bh4 18.Rc8?? Bg3= 19.Re8 Re8 20.Nf3 Re6?? 21.fg3+– Qh3 22.Rf2! Rh6 23.Nh4 Qh1 24.Kh1 Nf2 25.Kg2 Nd1 26.Bd1 Rd6 27.Bc3 g6 28.Bf3 b5 29.d4 f5 30.Kf2 Rd7 31.Bb4 Rc7 32.Bd5 Kg7 33.Bc5 Kf6 34.Nf3 a6 35.Ne5 Rg7 36.Nd3 g5 37.Nb4 a5 38.Nc6 Rd7 39.Bg2 a4 40.Ne5 Rc7 41.Bc6 h5 42.Bb5 Rc5 43.dc5 Ke5 44.Ba4 1–0. Hal1958 – Torenvalk, playchess.de, 2005.

7.Bc4 g6 8.Qb3+/– Qe7 (better is 8...e4 9.Ng5 Ne5 10.Nf7 Nf7 11.Bf7 Kd8+–) 9.0–0 (better is 9.Ng5!? Nd5 10.Bd5 Qg5 11.Bf7 Kd8 12.0–0+–) 9...Bg7+= 10.d4 ed4 (10...e4 11.Ne5 Ne5 12.de5=) 11.Bd4 (11.ed4 Ne4+/–) 11...0–0 12.Nbd2 (12.Nc3 c6+=) 12...b6 13.Bb2 (13.Bd5 Rb8+/–) 13...Bb7 14.Rfd1 Rad8 (14...a6 15.a4+=) 15.Rac1 c5 (15...a6 16.Be2 Rc8 17.Bd4+=) 16.Bc3 (16.b5 Ra8+=) 16...h6 (16...cb4 17.ab4 a6 18.Qa2+=) 17.Qc2 (17.b5 Ne4 18.Bg7 Kg7+=) 17...Kh8 (17...Ne4 18.Bg7 Kg7 19.b5+=) 18.bc5 (18.b5 Ne4 19.Bg7 Kg7+=) 18...Nc5 19.Bb4 (19.Bd4 Ne6+=) 19...a5 (19...Nfe4 20.Ne4 Be4 21.Qe2=) 20.Bc5 Qc5 21.Qb3 Qc7 (21...Ne4 22.Ne4 (worse is 22.Bf7 Nc3 23.Rc3 Bc3–/+) 22...Rd1 23.Rd1 Be4 A) 24.Bf7? Bc2 25.Rc1 Bb3 26.Rc5 Bf7–+ (26...bc5?! 27.Bb3 Rb8 28.Bc2–+); B) 24.Nd4=) 22.Be2 Bc6? (22...Qe7 23.Qb6 Nd5 24.Qc5+/–) 23.Bb5?? (23.Nd4 Rd4 24.ed4 Qb7+–) 23...Rd6?? (better is 23...Bd5 24.Rc7 Bb3+=) 24.Nd4+– Ng4 25.N2f3?? (better is 25.Bc6 Rc6 26.Nc6 (26.Rc6?! Qh2 27.Kf1 Qh1 28.Ke2 Qg2+/–) 26...Qh2 27.Kf1+–) 25...Bd4?? (25...Bd5 26.Rc7 Bb3 27.Rdc1+=) 26.ed4 (26.Rd4 Rd4 27.Qb2+– (27.ed4?! Bd5 28.Rc7 Bb3+/–)) 26...Qb7 (26...Bd5 27.Rc7 Bb3 28.Rd3+/–) 27.Bc6 Rc6 28.Rc6 Qc6 29.Qb2 (29.h3!? Nf6 30.Ne5+/–) 29...Qd6+= 30.h3 (30.Rc1 Rd8+=) 30...Nf6 31.Rc1 (31.Ne5 Nd5+=) 31...Nd5 (31...Rd8 32.Qb3 Qf4 33.Rc6+=) 32.Ne5 Kg7 33.Rc6 Attacks the backward pawn on b6 33...Qd8 (33...Qe7 34.Qb3 Rd8 35.Qg3+=) 34.Ng4 (34.Nc4 Re8 35.Nb6 Re1 36.Kh2 Qb8 37.g3 Qe8 38.Rg6 fg6 39.Nd5 Re2 40.Qb7 Qf7 41.Qf7 Kf7–/+) 34...Re8 (34...Qg5 35.Qe2=) 35.Qd2 Qg5 (35...Rh8 36.a4=) 36.Qg5+= hg5 37.Rd6 (37.Kh2 Re6 38.Ne5 Rc6 39.Nc6 Kf6=) 37...Nf4 (37...Nc3 38.Rb6 Ne2 39.Kh2 Nd4 40.Rd6+=) 38.Rd7 (38.Ne5 Ne2 39.Kh2 Nd4 40.Nf7 Nc2 41.Ng5 b5 42.Rd7 Kf6+=) 38...Re1 39.Kh2 Ra1 (39...Nd3 40.Rb7 Ra1 41.d5=) 40.Ne5+/– Ra3 (40...Kg8 41.g3 Ne6 42.Rf7 Nd4 43.Rd7+=) 41.Rf7 (better is 41.g3 Ne2 42.Rf7 Kg8 43.d5+/–) 41...Kh6?? (better is 41...Kg8 42.g3 Nd5+/–) 42.Ng4 Kh5 43.Rh7 1–0. Van Esbroeck,Dirk – Ruslin,Alexey, SN–2008–0–00130, 2009.

6.c4 c6

7.Qb3 e4 8.c5 Qc7 9.Nd4 Ne5 10.d3 ed3 11.Bd3 Nd3 12.Qd3 Be7 13.Nd2 0–0 14.N2f3 Ne4 15.Nd2 f5 16.f3? (better is 16.0–0=) 16...Bh4–+ 17.Ke2 Nd2?? (better is 17...Nf2 18.Qc2 Nh1 19.Rh1 Qe7–+) 18.Kd2+= Bd7 19.Qc3 Bf6 20.Kc2 a5 21.g3 b6 22.Qd3 (22.cb6 Qb6 23.Qc5 Qb7–/+) 22...Bc8 (22...ab4 23.ab4 bc5 24.bc5–/+) 23.f4 (23.Kd2!?–/+) 23...bc5 24.bc5 Qe7 25.Qc3 Qe4 26.Kd2?? (better is 26.Qd3 Qe8 27.Kd1–/+) 26...Qg2–+ 27.Kd3 Ba6 (27...Ba6 28.Qc4 Bc4 29.Kc3 Rab8 30.e4 Qb2) 0–1. Jambrich,Jaromir (1680) – Macka,Oto (1955), Bratislava Doprastav op, 2006. (=1.Nf3 Nf6 2.b4 d5 3.Bb2 Qd6 4.a3 Nbd7 5.e3 e5 6.c4 c6)

7.Qb3 e4!? 8.Nd4 dc4 9.Qc4 a5 =.

7.Qb3 Be7 8.Nc3 0–0 9.Be2 (9.cd5 Nd5 10.Nd5 cd5=) 9...a5 (9...e4 10.Nd4 dc4 11.Qc2=) 10.c5= Qb8 (10...Qc7 11.0–0=) 11.0–0 e4 12.Nd4 Ne5 13.f4 (13.Na4 Bg4=) 13...ef3 14.Nf3 Nf3 15.Bf3 ab4 16.ab4 (worse is 16.Qb4 Nd7–/+) 16...Ra1 17.Ba1 (17.Ra1 Ng4 18.g3 b6 19.cb6 Bd6=) 17...Be6 (17...Ng4 18.g3=) 18.Qc2 Qc7 19.Ne2 Ra8 20.Nf4 Ng4 (20...Qd7 21.Ne6 Qe6 22.Bd4=) 21.h3+= Ne5 22.Be2 (22.Bh5 Bf6+=) 22...Bc8 (22...Bd7 23.b5=) 23.e4+= Nf3 (23...Bg5 24.Qc3 Ra1 25.Qa1 de4 26.Qd4+=) 24.Bf3 Qf4 25.Bd4 (25.Bc3!? d4 26.Bd4+=) 25...Bf6 (25...Be6 26.Bc3 d4 27.Bd4=) 26.Be3 (26.Bf6 Qf6 27.ed5 Qd4 28.Kh1 cd5 29.Qc3 Qc3 30.dc3+/–) 26...Qg3 (26...Qe5!? 27.ed5 cd5+=) 27.ed5+/– Be5? (better is 27...Bd7!?+/–) 28.dc6+– bc6 29.Bc6 Qh2? (29...Bh3 30.Ba8 Bg4 31.Rf7 Kf7+–) 30.Kf2+– Bh3?? (30...Ra3 31.Qe4 h5+–) 31.Ba8 Qg3 (31...Bg2 32.Bg2 Qg3 33.Ke2 Qg2 34.Ke1 Bg3 35.Bf2+–) 32.Ke2 Bg4 (32...Bg2 33.Qf5 Bf1 34.Kf1 g6+–) 33.Bf3 (better is 33.Kd3 Bd7 34.Qc4+–) 33...Qg2–+ 34.Rf2 Bf3 0–1. Dorweiler,Roger Paul – Andor,Jorge, IRT CURITIBA IEP, 2008.

7.Qb3 Be7 8.Nc3 a6 9.c5 Qc7 10.Na4 (10.Be2 a5=) 10...0–0 11.Rc1 Re8 12.Nb6 Nb6 13.Be5 Qd8 14.cb6 Qb6 15.Bd3 Bg4 16.Qb2 Qd8 17.Ng5 (17.Nd4 Bf8 18.Nb3 Ne4=) 17...g6 (17...h6!? 18.h3 Bh5+=) 18.h3 Be6 19.Ne6 fe6 20.Qc2 Nd7 21.Ba1 Bf6 22.Bg6 hg6 23.Qg6 The passed pawn on h3 quickly leads to threats 23...Kf8 24.Qh6 Ke7 (24...Kg8 25.Qg6 Kh8 26.Qh6 Kg8 27.Qg6=) 25.Bf6+= Nf6 26.Qg7 Kd6 27.Qb7 Qc7 28.Qc7 Kc7 29.g4 Kd6 (29...Reb8 30.g5 Nh5 31.Rg1=) 30.f3 (30.g5 Nh5+=) 30...a5= 31.h4 ab4 32.ab4 Rab8 33.Rb1 Rg8 34.Kf2 (34.d4 Ra8+=) 34...Nd7 (34...e5 35.g5 Nh5 36.Rhg1+=) 35.d4 e5 36.de5 (36.g5!?+=) 36...Ne5= Black gets the initiative 37.Kg3 (37.g5 Rb4 38.Rb4 Nd3 39.Ke2 Nb4=) 37...Nd3 Attacks the isolani on b4 38.b5 (38.h5 Rge8 39.h6 Re3=) 38...c5 (38...Rb5 39.Rb5 cb5 40.h5+=) 39.Rhd1 (39.h5!?=) 39...c4+= 40.Rd3 cd3 41.Rd1 Rb5 42.Rd3 Ke5 43.Rd4 Rb3 44.Kf2 Rc8 45.Rd2 Rcc3 46.Re2 (46.f4 Kd6 47.Re2 d4–+) 46...Kf6 (46...d4 47.ed4 Kd6 48.Kg1 Rf3 49.Rg2–+) 47.Kg3 (47.h5 d4 48.ed4 Rf3 49.Ke1 Rf4–+) 47...Re3 48.Rf2 Rec3 49.Kf4 Rc4 50.Kg3 d4 51.Ra2 d3 52.h5 Rc2 53.Ra6 Ke7 54.Ra7 Kd6 55.Ra6 Kc5 56.Ra5 Kc4 57.Ra4 Kc3 58.Ra8 (58.h6 d2 59.h7–+) 58...d2 59.Rc8 Kd3 60.Rd8 Ke2 61.Re8 (61.Rd2 Rd2 62.h6 Rf3 63.Kh4 Rf4 64.Kh5 Kf3 65.Kg6 Rd6 66.Kg7 Rb4 67.h7 Rb7 68.Kg8 Rd8) 61...Re3 0–1. Ryzlak,Jerzy – Bugajski,Robert, Warszawa Poland, 1987.

7.Qb3 Be7 8.cd5 cd5 9.Be2 (9.Nc3 0–0=) 9...0–0 10.Nc3 a6 11.d3 (11.d4 e4 12.Nd2 Nb6=) 11...Re8 (11...b5 12.0–0=) 12.0–0= Nf8 (12...b6 13.Rfc1=) 13.Rfc1 h6 (13...b6 14.d4 e4 15.Ne5=) 14.Na4 White gets strong initiative 14...Ng6 15.d4 Nd7 (15...e4!? 16.Ne5 Rd8+=) 16.Ne5 Nde5 (16...Nge5 17.de5 Ne5 18.Be5 Qe5 19.Nb6+/–) 17.de5 Ne5 18.Be5 Qe5 19.Nb6 Rb8 20.Nd5 Bd6 The mate threat is Qxh2 21.f4 Qf5 (21...Qe6 22.Rc3+/–) 22.Bd3 Qh5 23.Nc7 (23.e4 Be6+/–) 23...Re7 (23...Rd8 24.Rc3+/–) 24.Qd5 Qd5 25.Nd5 Re8 26.Rc3 (26.Kf2 Bd7+/–) 26...Bd7 (26...Be6 27.Nc7 Bc7 28.Rc7+/–) 27.Rac1 Bc6 (27...Rbc8!?+/–) 28.Rc6+– bc6 29.Rc6 Bf8 (29...Red8 30.Ba6 Kf8 31.e4+–) 30.Ra6 (30.Ba6 Rbd8 31.Bc4 Rc8+–) 30...Ra8 31.a4 Ra6 32.Ba6 Rd8 (32...Re4 33.Bd3 Rb4 34.Nb4 Bb4 35.Kf2+–) 33.e4 f5 34.e5 The passed pawn on e5 will quickly become a dangerous weapon (34.ef5 Kh8) 34...g5? (better is 34...Kh7 35.Bc4 Bb4+–) 35.Bc4 Kg7 (35...Kf7 36.g4 Kg6 37.Ne3 gf4 38.gf5 Kg5 39.h4 Kh4 40.Nd5+/–) 36.b5 Rc8 37.Bb3 Rc1 38.Kf2 Rb1 39.Bc4 Ra1 40.b6 Ra4 41.b7 Bc5 42.Ke2 Ba7 43.Kd3 Kf8 (43...Ra3 44.Kd2 gf4 45.Ne7+–) 44.e6 Ra3 45.Kc2 Ra5 46.Nf6 (46.Kc3 gf4 47.Kb4 Rd5 48.Bd5 Ke7+–) 46...Ke7 (46...gf4 47.Nd7 Ke8 48.b8Q Bb8 49.Nb8+–) 47.Nd7 (47.Ng8 Ke8 48.Kc3 gf4+–) 47...Ra4 48.Kc3 gf4 (48...Ra3 49.Kb4 Ra1 50.b8N Rb1 51.Bb3+–) 49.b8Q Threatening mate: Qf8 49...Bb8 50.Nb8 Ra3 (50...Kd6 51.Nd7+–) 51.Kb4 f3 (51...Re3 52.Nc6 Kd6 53.Nd4+–) 52.Nc6 Ke8 (52...Kd6 53.Ka3 fg2+–) 53.Ka3 fg2 54.Be2 g1Q 55.Bh5 Kf8 56.e7 Kg7 57.e8Q Qc5 58.Kb3 (58.Ka4 Qc2 59.Kb5 Qb2 60.Nb4 Qf6+–) 58...Qd5 59.Kc3 Qc5 (59...Qd6 60.Ne5 Qa3 61.Kd4 Qa7 62.Kd5 Qa5 63.Ke6 Qa2 64.Kf5 Qc2 65.Ke6 Qb3 66.Kd7 Qd5 67.Kc7 Qa5 68.Kb7 Qb4 69.Kc8 Qc3 70.Nc6+–) 60.Kd3 Qb5 61.Ke3 Qc5 62.Kf3 Qc3 (62...Qd6 63.Ne5 Qa3 64.Kg2 Qb2 65.Kg3 Qa3 66.Bf3+–) 63.Kf4 Qd2 64.Qe3 (64.Qe3 Qh2 65.Qg3 Qg3 66.Kg3+–; 64.Kf5!? Qf2 65.Ke6 Qe3 66.Kd7 Qe8 67.Ke8 Kf6+–) 1–0. Pleschke,Helmut – Saunders,Steve (1980), Email ICCF EM/C/A032, 1997.

7.Qb3 g6 8.cd5= cd5 9.Bb5 e4 10.Bf6 Qf6 (10...ef3!? 11.Bh8 fg2=) 11.Nd4+= Qg5 12.0–0 Bg7 (12...a6 13.f4 ef3 14.Nf3+/–) 13.f4 (13.Nc3 a6 14.Nd5 0–0 15.Bd7 Bd7+/–) 13...ef3+= 14.Nf3 Qh5 15.Nc3 Attacks the isolani on d5 15...0–0 16.Nd5 (16.Rac1 Nf6+=) 16...Nb6= 17.Ne7 (17.Nb6 ab6 18.Bc4 Ba1 19.Ra1 Bd7+=) 17...Kh8 18.Nd4 (18.Bc4 Nc4 19.Qc4 Be6=) 18...Be6 19.Ne6 (19.Qe6 fe6) 19...fe6 20.Rf8 Rf8 (20...Bf8 21.Ba6 ba6 22.Qe6+=) 21.Rf1 Qe5 (21...Qb5 22.Rf8 Bf8 23.Qe6 Be7 24.Qe7=) 22.Rf8 (better is 22.a4!?=) 22...Bf8–/+ 23.Nc8 (better is 23.d4!? Qg5 24.Qe6 Be7 25.Be2+=) 23...Nc8–+ (23...Qb5?! 24.Qe6 Nc8 25.Qc8–/+) 24.Bd7 Nd6 25.Be6 (25.Qe6!? Qb2 26.h3–+) 25...Ne4 Do you see the mate threat? (25...Ne4 26.Bg4 Bd6–+) 0–1. Meyer,T – Guenthner,O, Saarbrucken–Untergro, 1987.

7.Qc2 Be7 8.Nc3 =.

7.Qc2 Be7 8.Be2 0–0 9.d4 e4 10.Ne5 Ne8 11.Nd2 Ne5 12.de5 Qg6 13.g4 (13.cd5 cd5 14.Bf1 Be6=+) 13...Bh4 (< 13...Bg4 14.Rg1 Be2 15.Rg6+/–) 14.0–0–0? (better is 14.cd5 cd5 15.Qc5=+) 14...Bf2–+ 15.Nf1 (15.Bd4 f6 16.ef6 Nf6–+) 15...Be6 16.h4 f6 17.Rd2 (17.Rh2 fe5 18.Be5–+) 17...Qh6 (17...a5 18.ef6 Nf6 19.Rh2–+) 18.Qb3? (18.ef6 A) 18...Nf6? 19.g5 Qg6 20.gf6+–; B) 18...Be3?! 19.Ne3 Qe3 20.fg7 Ng7 21.cd5 cd5 22.Kb1–/+; C) < 18...Rf6 C1) < 19.Bf6 Qf6 (19...Nf6? 20.g5 Qg6 21.gf6+–) 20.cd5 cd5–/+; C2) 19.g5 Qg6 20.gf6+– (20.Bf6?! gf6 21.Bd1 Be1+–); D) 18...gf6 19.Bd4 a5=+ (< 19...Bh4 20.Bd1+/–)) 18...a5 (18...Be1 19.Rd4 Bh4 20.cd5 cd5 21.Re4 Rc8 22.Kb1–+) 19.ba5 (19.ef6 A) < 19...Nf6 20.g5 Qg6 21.gf6+/–; B) 19...Bh4?! 20.cd5 cd5 21.fg7 Ng7 22.ba5=; C) 19...gf6?! 20.cd5 a4 21.Qd1 cd5 22.Rd5=+; D) 19...Rf6? 20.g5 Qg6 21.gf6+– (21.Bf6?! gf6 22.ba5 Ra5+=); E) 19...ab4 20.Qb4 E1) < 20...Bh4 21.cd5 Bd5 22.Ng3=; E2) < 20...Nf6 21.g5 Qg6 22.gf6+–; E3) 20...Be3?! 21.Ne3 Qe3 22.Qe7=; E4) 20...Rf6? 21.g5 Qg6 22.Qb7+– (22.Bf6?! gf6 23.Qb7 Rc8+/–); E5) 20...Be1–/+) 19...Rf7 (19...fe5 20.Qb7 Nd6 21.Qc6 Nc4 22.g5–+) 20.Qb6 (better is 20.ef6!? gf6 21.Kd1 Ra5 22.Bd4–/+) 20...Be1 (20...dc4?! 21.ef6 gf6 22.Bc4 Bc4 23.Rf2=+; < 20...Bh4 21.a6 Ra6 22.Qd8=+) 21.Rc2 (21.ef6 Bd2 (< 21...Nf6 22.g5 Qg6 23.gf6+=) 22.Nd2 gf6 (< 22...Nf6 23.g5 Qg6 24.gf6+=; 22...Rf6? 23.Qb7 Ra5 24.g5+–) 23.cd5 Bd5–+) 21...Ba5 22.Qc5 Bd8 23.cd5 Bd5 24.Ng3 fe5 25.Nf5 Qe6 26.Bf1 (26.Qc3 Bc7–+) 26...Nf6 (26...h5 27.Qc3–+) 27.Bh3 Nd7 28.Qc3?? (28.Qd6 Bb6 29.Kd1–+) 28...Ba5 29.g5 (29.Rf1 Bc3 30.Rc3 b6–+) 29...Rf5 30.Rf1 (30.Rhh2 Bc3 31.Rc3 Qg6 32.Bf5 Qf5–+) 30...Bc3 (better is 30...Rf1!? 31.Bf1 Bc3 32.Bc3–+) 31.Bf5 Bb2 32.Kb2 0–1. Otte,Marco – Neuteboom,Jan Hendrik, Wag.Intcomp Wageningen, 2001.

7.Qc2 g6 8.d4 (8.Nc3 dc4 9.Bc4 Bg7+=) 8...e4 9.Ne5 (9.Nfd2 a5+=) 9...Bg7= 10.Nd2 (10.Be2 0–0=) 10...0–0 11.cd5 cd5 (worse is 11...Qd5 12.Bc4 Qd6 13.0–0+=) 12.Rc1 (12.Be2 Qe6=) 12...Ne8+= 13.Nd7 (13.f4 ef3 14.Ndf3 Qe6–/+) 13...Bd7 14.Qc5 Qe6 15.Bb5 Bb5 16.Qb5 Nd6 17.Qe2 a5 (17...Rac8 18.0–0+=) 18.ba5+= Ra5 19.0–0 Rb5 (19...Raa8 20.Rc5+=) 20.Bc3 Rc8 21.Bb4 Bf8?? (better is 21...Rb6=) 22.Rc8 (22.Bd6 Rb2 23.Bf8 Kf8+–) 22...Qc8 23.Bd6 Rb2 24.Bf8 Kf8 (24...Qf8 25.Ra1+–) 25.Qd1 (25.f3 Qc3 26.Rf2 Qa3 27.fe4 de4+–) 25...Ra2 (25...Kg7 26.h3+–) 26.Qb3 (26.Qb1 Qc2 27.Nb3 b6+–) 26...Rc2 (26...Qc2 27.Qc2 Rc2 28.Nb3+–) 27.h3 (27.Rb1!? Rc1 28.Rc1 Qc1 29.Nf1 Qc6+–) 27...Kg7 28.Qb4 Ra2 (28...Qc7 29.Nb3 b6 30.Rb1+–) 29.Nb3 Rb2 (29...Qc4 30.Na5 Qb4 31.ab4 Rb2 32.Nb7 Rb4+–) 30.Rc1 (30.Qc5 Qc5 31.Nc5+– (31.dc5?! Rb3 32.Rd1 Ra3=)) 30...Qf5= 31.Rf1 g5?? (31...Qc8 32.Qc5 Qc5 33.Nc5 Kf6+–) 32.Qc3+– Ra2 (32...Rb3 33.Qb3 b6 34.Rb1+–) 33.Nc1 1–0. Wirowski,Piotr (1665) – Szydelko,Kazimierz (1960), Puchar Gor Sowich Poland – Open A, 2007.

7.Nc3 a5 8.cd5 Nd5 (8...cd5? 9.Nb5 Qb8 10.Rc1+–) 9.ba5 Ra5 10.Bc4 (10.Qc2 Nc3 11.Bc3 Ra3 12.Ra3 Qa3 13.Ne5 Ne5 14.Be5 Be6=) 10...N5b6 11.Qb3 (11.Bf1!?=) 11...Nc4–/+ 12.Qc4 Qg6 13.0–0 b6 14.Nh4 Qc2 15.Rfb1 (15.Nf3 Nc5 (worse is 15...Qb2 16.Ng5 Nc5 17.Qf7 Kd8 18.Ra2+/–) 16.Ne5 Be6–/+) 15...Nc5–/+ (worse is 15...Qd2 16.Qc6 Rc5 17.Qa4=) 16.Nf3 Be6 17.Qe2 (17.Qb4 Ra6 18.Ne5 Nb3+=) 17...Nb3 18.Ra2 e4 19.Ba1 ef3 (19...Qd3!? 20.Qd3 ed3–/+) 20.Qf3= (20.Rc2?? fe2 21.Ne2 Bf5 22.Rb3 Bc2 23.Rb6 Ra3–+) 20...Qf5 (20...Nd2? 21.Qc6 (21.Rc2? Nf3 22.gf3 Ra3–+) 21...Bd7 22.Qb6 (worse is 22.Rc2 Bc6 23.Rb6 Ra3+/–) 22...Nf3 23.gf3+–) 21.Qc6 Bd7 22.Qb6 Na1 23.Rba1 Rc5 24.a4 Rc6 25.Qd4 Bd6 26.Qg7?? (better is 26.Qe4 Qe6 27.Rb2=) 26...Be5–+ 27.e4 Qh5 (27...Qh5 28.Qh8 Bh8–+; 27...Bg7?! 28.ef5 Bf5 29.Rb2+=) 0–1. Gross,G – Sternik,Ryszard, email b4–02–08, 2002.

7.Nc3 d4 8.ed4+/– ed4 9.Qe2 Be7 10.Nd4! 0–0? 11.Nf5+– Qg3 12.Ne7 (12.Ne7 Kh8 13.hg3+–) 1–0. b4_player – opponent, gamecolony.com, 2007.

7.Nc3 e4 8.Nd4 dc4 9.Qc2 Qe5 10.Bc4 +=.

7.Nc3 e4 8.Nd4 Ne5 (8...dc4 9.Qc2 Qe5 10.Bc4+=) 9.cd5+= cd5 10.Rc1 a6? (10...Nc6 11.Ncb5 Qd7 12.Qc2+/–) 11.Qa4?? (better is 11.Ndb5 Qd8 12.Nc7 Qc7 13.Nd5+–) 11...Bd7= 12.Ncb5?? (better is 12.Qc2=) 12...Qb8–+ 13.Nc7 (13.Qc2 ab5 14.Nb5 Bc6–+) 13...Qc7! 14.Rc7 Ba4 15.Rb7 Nfd7 16.Be2 (16.Rc7–+) 16...g6 (better is 16...Kd8–+) 17.f4–/+ ef3! 18.Nf3 (18.Nf3 Bg7 Combination; 18.Bf3 Nd3 Double attack; 18.gf3 Rg8 Combination) 18...f6 19.0–0 Bd6 20.Nd4 Ke7 (20...Nc4 21.Bc3–+) 21.b5 (21.Rc1 a5–+) 21...Bb5 22.Bb5 (22.Nb5 ab5 23.Bb5 Rhb8 24.Rb8 Rb8–+) 22...ab5 23.Nc6? (23.Nb5 Rhb8 24.Nd6 Kd6 25.Rb8 Rb8 26.Bc3–+) 23...Nc6 24.Bf6 Ke6 25.Bh8 Rh8 26.Rb5 Ba3 0–1. Wall,Bill – Lewis,Walter, corr, 1988.

7.Nc3 Be7 8.Qb3 0–0 9.cd5 Nd5 10.Be2 a5 11.Nd5 cd5 12.0–0 b6 13.Bb5 e4 14.Nd4 Ne5 15.ba5 Ng4 16.f4 ef3 17.Nf3 Ra5 18.a4 Ra7 19.h3 Nh6 20.Be5 Qg6 21.Bd3 Qe6 22.Bb8 Ra8 23.Nd4 Qd7 24.Bb5 Qb7 25.Bf4 Nf5 26.Rac1 Nd4 27.ed4 Ra7 28.Qg3 Bf6 29.Bc6 Bd4 30.Kh1 Qe7 31.Bd6 Qd8 32.Bf8 Kf8 33.Qb8 Rc7 34.Bd5 Rc1 35.Rc1 Qd5 36.Qc8 Ke7 37.Rc6 Be5 38.Qb7 Qd7 39.Rb6 g6 40.a5 Bc7 41.a6 Bb6 42.Qb6 Qd2 43.Qb7 Kf6 44.Qb8 1–0. St_Jean,Benoit – Buijck,Frank, 2001.

7.Nc3 Be7 8.Qc2 a6 9.Be2 0–0 10.h4 Re8 11.c5 Qc7 12.0–0–0 b6 13.d4 e4 14.Ng5 Bf8 15.f3 bc5 16.dc5 ef3 17.Bf3 g6 18.e4 de4 19.Nce4 Ne4 20.Ne4 Qf4 21.Qd2 Re4 22.Qf4 Rf4 23.h5 Bg7 24.h6 Bb2 25.Kb2 Rf6 26.Rhe1 Re6 27.Bc6 Ra7 28.Bf3 Re1 29.Re1 Kf8 30.a4 f6 31.c6 Ne5 32.Rd1 Ke7 33.Kc3 Rc7 34.b5 ab5 35.ab5 Nf3 36.gf3 Bb7 37.Re1 Kf7 38.Kb4 Rc6 39.bc6 Bc6 40.Rc1 ½–½. Beerens – de Jong, 1995.

7.c5 Qc7 8.Nc3 Be7 9.d3 0–0 10.Be2 Re8 11.e4 (better is 11.0–0!?=) 11...d4–/+ 12.Nb1 Nf8 (12...a5 13.g4–/+) 13.Nbd2+= Ng6 14.Nc4 Be6 15.Qc1 h6 16.0–0 Rf8 17.Re1 Rae8 18.Qc2 Nd7 19.Bc1 f5 20.Ncd2 Kh7 21.Bf1 f4 22.h3 Rg8 23.Be2 Qd8 24.Nf1 Nh8 25.N1h2 g5 (25...Qc7 26.Nd2=) 26.Nd2 Nf6 Black plans g4 27.f3 (27.Bb2 Nf7=) 27...h5 Black prepares the advance g4 28.Qd1 Qd7 29.Nc4 Nf7 30.Qa4? (better is 30.Qc2!?+=) 30...g4 (30...Bc4 31.dc4 d3 32.Bb2 de2 33.Re2–+) 31.h4 (31.Ne5 Ne5 32.hg4 hg4 33.Bf4 Ng6–/+) 31...Ra8 (better is 31...Bc4!? 32.dc4 d3–+) 32.Qd1 Ne8 33.Kh1 (better is 33.Qd2!?–/+) 33...Bh4–+ 34.Rg1?! (34.fg4 Be1 35.Qe1 Bc4 36.dc4 d3–+) 34...Bf2 (34...g3 35.Nf1 Bd8 36.Ncd2–+) 35.Ng4 (35.Rf1 g3 36.Rf2 gf2 37.Qc2–+) 35...hg4 (35...hg4 36.fg4 Kg7–+; 35...Bg4?! 36.fg4 Qe7 37.g3 fg3 38.Kg2 Bg1 39.Qg1–+; worse is 35...Bg1 36.Nge5 Ne5 37.Ne5–+) 0–1. Klomp,C – Daamen,Ferry, Valkenswaard, 1988.

7.c5 Qc7 8.d3 g6 (8...b6 9.d4 e4 10.Nfd2+=) 9.Nbd2= Bg7 10.Qc2 0–0 11.Be2 Re8 Black prepares the advance e4 12.Rc1 e4 13.de4 de4 14.Ng5 Ne5 15.Nde4 (15.Nc4 h6 16.Ne4 Bf5 17.Be5 Re5 18.Nf6 Bf6+/–) 15...Ne4 16.Ne4 (worse is 16.Qe4 h6 17.Nh3 Bh3 18.gh3 Nf3 19.Qf3 Bb2=) 16...Bf5 17.0–0 Be4 (17...Rad8 18.Bd4+=) 18.Qe4+/– Nf3 19.Qf3 (worse is 19.Bf3 Re4 20.Bg7 Re3 (20...Kg7 21.Be4 Qe5 22.Bd3–/+) 21.fe3 Kg7–/+) 19...Bb2 20.Rcd1 (20.Rb1!? Be5 21.h3+/–) 20...Ba3= 21.Rd4 (21.Qg4 h5 22.Qd4 Qe5=) 21...Rad8 (21...a5 22.Rfd1 Re7 23.ba5 Bc5 24.R4d2=) 22.Rfd1 (22.Rb1 h5 23.Rd8 Rd8+–) 22...Rd4= 23.Rd4 Bb2 24.Rf4 (24.Rd3 Be5 25.Qh3 Rd8=) 24...Bg7 25.Bc4 Will f7 fall? 25...Qd7?? (better is 25...Re7=) 26.Rf7+– (26.Rf7 Qe6 27.Be6 Re6 28.Qf4+–) 1–0. Mroz,Antoni – Borowicz,D, corr Poland, 1988.

7.c5 Qc7 8.Be2 e4 9.Nd4 b6 10.b5 (10.cb6 ab6 11.Qc2 c5=) 10...Bc5 11.bc6 Ne5 12.Nb5 Qe7 13.f4 (13.Be5 Qe5 14.d4 ed3 15.Bd3 Bg4–+) 13...ef3–/+ 14.gf3 Nc6 15.d4 Bd6 16.Nd6 Qd6 17.Bd3 0–0 18.0–0 Bh3 19.Re1 Rfe8 20.Qe2 Re6 21.Qf2 Ne7 22.Nc3 Nf5 23.Kh1 (23.Rac1 a6–/+) 23...Rae8 24.e4 Qf4 25.Re2 Nh4 26.Rg1? (26.Nd5 Nd5 27.Qg3 Qf3 28.Qf3 Nf3–+) 26...Qf3 (26...Nf3 27.Bc1 Ng4 28.Bf4 Nf2 29.Rf2 Ng1 30.e5=) 27.Qf3 Nf3 28.e5 Ng1 29.Kg1 Nd7 30.Nd5 Rh6 31.Nf4 Bg4 32.Rc2 Rd8 33.Be4 Bd1 34.Rc1 Bb3 35.Rc3 Ba2 36.Ng2 Nf8 37.Rc7 a6 38.Ne3 (38.Ra7!? f6 39.Ne3 fe5–+) 38...Ne6 39.Rb7 Rh3 (39...Nd4 40.Bd4 Rh4 41.Bb6+–) 40.Nf5 Ng5 41.Ne7 Kf8 42.Nc6 Ra8 (42...Ne4 43.Nd8 Rh6 44.h4–+) 43.Bf5 Bd5 44.Bh3 Nh3 (44...Bc6?! 45.Bg2 Bb7 46.Bb7–+) 45.Kf1 Bc6 46.Rb6 Rc8 47.a4 (47.Ke2 Nf4 48.Kd2 Be4–+) 47...Bd5 48.Ke1 Rc2 49.Ba3 Ke8 50.Rb8 Kd7 51.Rb2 Rc1 52.Kd2 Ra1 53.Bf8 Ra4 54.Bg7 Rd4 55.Kc2 Rc4 56.Kd1 Nf4 0–1. Pierred (2280) – Selterseisenbach (2440), Rated game, 2m + 0s, 2006.

7.c5 Qc7 8.Be2 Be7 9.0–0 0–0 10.d4 e4 11.Ne5 (11.Nfd2 b6=) 11...Ne5+= 12.de5 Nd7 13.Qd4 f6 14.ef6 Bf6 (worse is 14...Rf6 15.Nc3 Nf8 16.f3=) 15.Qd2 Ne5 16.a4 (16.Nc3!?+=) 16...Bg4–/+ 17.Bg4 Ng4 18.g3 Ne5 19.Be5 Be5 20.Nc3 Qf7 21.Rad1 Qh5 (21...Qf3 22.Nb5–/+) 22.b5 (22.Nd5 Rad8 23.Nf4 Rd2 24.Nh5 Rff2 25.Rd2 Rd2 26.Rc1+=) 22...Rf6 (22...Qf3 23.Ne2–/+) 23.Qe2 (better is 23.bc6!? bc6 24.Nd5=) 23...Qh3 24.Nb1 Raf8 25.Nd2 Bc3 26.bc6 bc6 (worse is 26...Rc6 27.f3 Qh5 28.Ne4 de4 29.Qc4 Qf7 30.Qc3 ef3 31.e4+=) 27.f4 ef3! 28.Rf3 (28.Nf3 Qg4 Decoy; 28.Rf3 Qg4 Decoy) 28...Bd2 (better is 28...Qg4!? 29.Rdf1 Qa4 30.Rf6 Rf6 (30...gf6?! 31.Qd3 Qb4 32.Rb1–/+) 31.Rf6 Bf6–+) 29.Rf6+= Be3 30.Qe3 gf6 (worse is 30...Rf6 31.Qe8 Rf8 32.Qc6+/–) 31.Re1 Qd7 32.Qe6 Rf7 33.Qd7 Rd7 34.Re6 Kf7 35.Rc6 d4 36.Kf2 Kg6 37.Ke2 Kf5 38.Kd3 Ke5 39.Rd6 Rd6 40.cd6 Kd6 41.Kd4 a5? 42.g4 Ke6 43.Ke4?? Kd6 44.Kd4 Kc6?? 45.h3 Kd6 46.h4?? h5= 47.gh5 Ke6 48.h6 Kf7 49.h5 Kg8 50.Ke4 Kh7 51.Kf5 ½–½. Hal1958 – Xikim, playchess.de, 2004.

7.c5 Qe6 8.Be2 b6 9.d4 e4 10.Nfd2 Be7 11.0–0 0–0 12.Nb3 Bb7 13.h3 a5 14.cb6 ab4 15.ab4 Bb4 16.Ra8 Ra8 17.Nc3 Nb6 18.Bg4? (Better is 18.Nc5 Bc5 19.dc5–/+) 18...Ng4–+ 19.Qg4 Qg4 20.hg4 Nc4 21.Nd1 Ba6 22.Bc3 Bd6 23.f4? (23.f3–+) 23...Ne3! 24.Ne3 Bf1 25.Nf1 Ra3 (26.Nfd2 e3–+ (< 26...Bf4 27.Bb4 Ra2 28.Bc3–+); 25...Bf4?! 26.Na5 Ra6 27.Kf2–+) 0–1. hal1958 – flipper, playchess.de, 2004.

7.c5 Qe6 8.Be2 g6 (8...b6 9.d4=) 9.0–0 (9.d4 e4 10.Ne5 Bg7=) 9...Bg7+= 10.d4 White fights for the Initiative 10...Qe7? (10...e4!? 11.Ng5 Qf5+=) 11.de5+/– Ne4 (11...Ng4 12.e4 de4 13.Nd4 Nde5 14.Nc3+=) 12.Nbd2 (12.Qd4 f6 13.Nc3 fe5=) 12...0–0+= 13.Nb3 (13.Bd3 Ne5 A) worse is 14.Ne4 Nf3 15.gf3 Bb2–+; B) 14.Be4?! Nf3 (worse is 14...de4 15.Be5 Be5 16.Ne5 Qe5 17.Nc4+=) 15.Bf3 Bb2=; C) 14.Be5 Be5 15.Ne5 Qe5 16.Be4 de4 17.Qc2+/–) 13...b6 (13...Re8!?+=) 14.cb6+/– Nb6 (14...ab6 15.Rc1 Qe6 16.Nbd4+–) 15.Rc1 Rd8 (15...f6 16.ef6 (16.Rc6?! fe5 17.Nbd2 Bb7+/–) 16...Bf6 17.Bf6 Rf6 18.Nfd4+–) 16.Nbd4 (16.Rc6 Nc4 17.Qd4 Bb7 18.Bc4 Bc6+/–) 16...Bb7 (16...c5 17.Nc6 Qe8 18.Nd8+–) 17.Nc6 Bc6 18.Rc6 Nc4 19.Bc4 dc4 20.Qc2 Ng5 21.Ng5 Qg5 22.Rc4 a5 (22...Rab8 23.Rc7 a5 24.f4+–) 23.b5 (23.f4 Qh4+–) 23...Rab8 24.a4 (24.f4 Qh4 25.a4 Rb6+–) 24...Qe7 (24...Be5 25.f4 Bf4 26.Rcf4+– (worse is 26.Rff4 Qe7+–; worse is 26.ef4 Qe7+–)) 25.Qc3 Qe6 (25...Rd5 26.Rc7 Qe6 27.Qa5 Be5 28.Be5 Re5 29.Rd1+–) 26.Rc6 (26.Rc1 h6+–) 26...Qa2 27.Qa3 (27.Ra1 Qa1!? 28.Ba1 Rd1 29.Qe1 Re1) 27...Qa3 28.Ba3 Be5 29.Ra6 (29.f4 Bg7+–) 29...Bc3 (29...Rd3 30.Bc5 Rc3 31.Ba7+–) 30.g3 (30.Rc1 Rd2+–) 30...Rd3 (30...Rd2 31.Rc1 Bb4 32.Bb4 ab4 33.Rb1+–) 31.Rb1 Be5 (31...Rd2 32.Kg2+–) 32.Be7 (32.Bb2 Rb3+/–) 32...Rd7 33.Bc5 Bc3 (33...Rc7 34.Bd4 Bd4 35.ed4+–) 34.Rb3 (34.Bd4 Bb4+–) 34...Rd1 35.Kg2 (35.Kg2 Rc1 36.Bb6+–) 1–0. Gutsko,Anastasiya – Kazimova,V, EU–ch U10 Girls, 1995.

7.c5 Qe7 8.Qc2 g6 9.d4 e4 10.Nfd2 Bh6 11.Nc3 0–0 12.Be2 Ne8 13.0–0–0 (13.h4 Bg7+=) 13...a5 (13...f5 14.g3+=) 14.Qa4 (14.b5 Qg5=) 14...Nc7 15.ba5 Qf6 Black gets in control 16.Rdf1 b6 17.cb6 Nb6 18.Qb4 (18.ab6 A pinning theme 18...Ra4) 18...Nd7+= 19.Nde4? (better is 19.Na4!?+=) 19...de4–+ 20.Ne4 Qe6 21.Nc5 Nc5 22.Qc5 Ba6 23.Ba6 Na6 24.Qc2 c5 25.Rd1? (25.Qc3 cd4 26.Qd4–+) 25...cd4 26.Kb1 Rfc8 (26...de3 27.Qc3 f6 28.fe3–+) 27.Qe2 (27.Qd3 de3 28.Qd4 Qf5 29.Ka2–+) 27...de3 28.fe3 Nc5 (28...Be3?! 29.Rhe1 Re8 30.Rd3–+) 29.Rhe1 (29.Rc1 Rab8 30.Rhd1 Na4 31.Rc8 Qc8–+) 29...Na4 (29...Na4 30.Qb5 Nb2 31.Qb2 Bg7–+) 0–1. Lorenz Tristan,Manuel – Santamaria,Mas, corr ESP–Cup, 1985.

7.Be2 dc4 8.Bc4 White fights for the Initiative 8...b5 9.Bb3 a5 10.Ng5 Nd5 11.e4 f6 12.ed5 fg5 13.dc6 Qc6 14.Qh5 g6 15.Qg5 Be7 16.Qg3 ab4 17.0–0 Rf8 18.ab4 Ra1 19.Ba1 Rf5 20.Nc3 Bb4 21.Nd5 (21.Bd5 Qb6+/–) 21...Bd6 22.Re1 The pressure on the isolated pawn grows 22...Bb7 23.f4 Bc5? (23...e4 24.Re4 Kd8 25.Qh4 g5 26.fg5 Qc1 27.Re1 Qd2+/–) 24.d4+– Qd6? (better is 24...Nb6 25.dc5 Nd5 26.Be5 Kf8 27.Bd6 Kg7+–) 25.Ne3 (25.fe5!? Re5 26.dc5 Qc5 27.Kh1 Re1 28.Qe1 Kd8+–) 25...Rf4?? (better is 25...Bd4 26.fe5 Re5 (26...Ne5? 27.Kh1 Be3 28.Qe3+–) 27.Bd4 Qd4+=) 26.dc5+– Qc5 27.Be5! Re4 (27...Qe5 A deflection 28.Nc4 Discovered attack) 28.Bd6 Qd4 29.Kh1 Ne5 30.Nf5 (better is 30.Bc2 Nd3 31.Bd3 Qd3+–) 30...Nd3 (30...Re1 31.Qe1 gf5 32.Qe5 Qe5 33.Be5+–) 31.Re4 Qe4 32.Ng7 (32.Ne3!? Qd4 33.h3 Be4+–) 32...Kd7 White now must not overlook the idea Nf4 33.Be6 Kc6 34.h3 Qe1 (34...Nf2 35.Kh2 Qe1 36.Qf4 Qh1 37.Kg3+–) 35.Qe1 Ne1 36.Bg3 Nc2 37.Bg8 b4 (37...Kd7 38.Bh7 Be4 39.Nh5+–) 38.Bh7 Ne3 39.Bf4 Nd1 40.Bg6 b3 41.h4 Kc5 42.h5 Ba6 (42...Be4 43.Be4 Nf2 44.Kg1 Ne4+–) 43.Ne6 (better is 43.Be3 Ne3 44.h6 Bb7+–) 43...Kc4 (43...Kb4 44.Bg3 Nb2+–) 44.h6 b2 (44...Nf2 45.Kg1 Nd3 46.Bd3 Kd3 47.Nc5 Kc4 48.Nb3 (48.Na6?! b2=) 48...Kb3 49.h7+–) 45.h7 Nf2 46.Kh2 Nd3 47.h8Q b1Q 48.Qd4 (48.Qd4 Kb3 49.Nc5 Nc5 50.Bb1+– (50.Qc5?! Qg6 51.Qe3 Kc4+/–)) 1–0. Stapinski,Ryszard (1800) – Czwalinski,Szymon (1800), corr, 1998.

7.Be2 e4 8.c5 Qc7 9.Nd4 Ne5 10.d3 Be7 (10...ed3!? 11.Bd3 b6=+) 11.de4= Ne4 12.f3?? (better is 12.0–0=) 12...Bh4–+ 13.g3? (13.Kf1 Nf2 14.Qe1–+) 13...Bg3! 14.hg3 Nf3! 15.Bf3 (15.Nf3 Qg3; 15.Bf3 Qg3) 15...Qg3 16.Ke2 Qf2 17.Kd3 Qb2 18.Qc2 Qa1 19.Be4 de4 20.Ke4 Bg4 21.Kf4 h5 22.Rf1 (22.Qe4 Kd8–+) 22...0–0–0 23.Qb3 (23.Kg3 Be6–+) 23...Rhe8 (23...Rd4 24.ed4 Qd4 25.Kg3 Re8 26.Qf7 h4 27.Kg2 h3 28.Kg3 Qe4–+) 24.Nd2 (24.Qd3–+) 24...Rd4 25.Kg3 h4 (26.Kg2 Rd2 27.Rf2 h3 28.Kg3 Qg1 29.Kh4 Rh8 30.Kg5 Rf2 31.Qf7 Bf5#) 0–1. thotares (1670) – pantagruel (1805), internet, 2007.

7.Be2 e4 8.Nd4 dc4+= 9.Bc4 Ne5 10.Be2 a5 11.ba5 Ra5 12.Qc2 +=.

7.Be2 e4 8.Nd4 dc4+= 9.Bc4 Ne5 10.Be2 Bg4 11.0–0 Be7 (11...Be2 12.Ne2 a5 13.Ng3+=) 12.h3 (better is 12.f3 ef3 13.Nf3 Bf3 14.Bf3=) 12...h5?? (12...Be2 13.Qe2 Qd7+=) 13.b5?? (better is 13.hg4 Nfg4 14.g3+/–) 13...c5 14.Nc2 Rh6 (14...Be2 15.Qe2 Qd3 16.Qd1+=) 15.Ne1 (15.hg4 hg4 16.g3 Nf3 17.Bf3 gf3 18.Nd4 cd4 19.b6–+) 15...0–0–0 16.Be5 Qe5 17.hg4? (better is 17.Nc3 Bh3! 18.f4 ef3 19.Rf3–+) 17...hg4 (17...Qa1 18.g5 Rg6 19.gf6 Rf6 20.Qc2+/–) 18.Bg4 Kb8 19.Bh3 Qa1 20.Qb3 Qe5 21.Qf7 (21.b6 ab6 22.a4–+) 21...Bd6 22.f4 ef3! 23.Rf3 (23.Nf3 Qg3 Combination; 23.Rf3 Qh2 Combination; 23.gf3 Qh2 mate Mate attack) 23...Ne4 (23...Qh2 24.Kf2 Ne4 25.Ke2–+) 24.Qf5 (24.Qf4 Qe7 25.Qf5 Rdh8–+) 24...Qh2 25.Kf1 Ng3 (25...Ng3 26.Rg3 Qg3–+) 0–1. Jean,Ludovic (1785) – Maier,Christian (2375), Skopje MKD, 4th Karpos Open, 2014.

7.Be2 e4 8.Nd4 dc4 9.Bc4 Ne5 10.Be2 Bg4 11.f3 ef3 12.gf3 Bh5 13.Qb3 Bg6 (13...Qd7 14.f4 Ng6 15.Bh5 Nh5 16.Qd3+=) 14.Nc3 (14.f4 Neg4+=) 14...Be7= 15.Ncb5?? (better is 15.0–0=) 15...cb5–+ 16.Nb5 Qb8 17.Qc3? (17.Rc1 Nc6 18.f4–+) 17...Nc6 0–1. Bouvier,Clement (1785) – Guliyev,Namig (2515), Elancourt France, Open, 2010.

7.Be2 Qe6 8.d4 e4 (worse is 8...dc4 9.de5 (9.Ne5?! Ne5 10.de5 Ng4=) 9...Ng8 10.Qc2+/–) 9.Nfd2 Bd6 10.Nc3 a6 11.b5 h5 (11...ab5 12.cd5 cd5 13.Nb5=) 12.h3 g6 13.Qb3 Kf8 14.c5 White prepares the advance b6 14...Be7 15.b6 Kg7 16.0–0–0 (16.0–0 Qf5+/–) 16...Nf8 17.Rde1 Qf5 18.Nd1 Qg5 19.Rhg1 Bf5 20.Kb1 Re8 21.Ka1 Bd8 22.Qa4 N8d7 23.Nb3 Nb8 24.Na5 Bc8 25.Qc2 h4 26.Nc3 Nh5 (26...Rh7 27.Rb1+=) 27.Bc1 (27.Bg4 f5 28.Be2 Bf6+=) 27...f5 28.g4 hg3 29.fg3 Nf6 (29...Ng3 30.Bf1 Qh4 31.Qg2+=) 30.Bf1 Ref8 31.Qg2 Rf7 32.Be2 Kf8 33.Rh1 Rfh7 34.Reg1 Ke8 35.Qf1 Qh6 36.Kb1 g5 37.Nd1 Qg6 38.Nf2 Rf8 39.Qd1 Rfh8 40.g4 fg4 41.Ng4 Rh3 (41...Qg7 42.Rg3=) 42.Rh3+= Rh3 43.Nf6 Qf6 44.Bg4 (44.Bh5 Ke7 45.Bg4 Bg4 46.Qg4 Rh4 47.Qg5 Qg5 48.Rg5 Kf8 49.Rf5 Ke8 50.Nb7 Be7+–) 44...Bg4 45.Qg4 Rh2 46.Qg3 (46.Nb7 Qf2 47.Qe6 Be7 48.Nd6 Kf8 49.Qf5 Qf5 50.Nf5 Bf6=) 46...Qf2= 47.Qf2 Rf2 48.Nb7 Kf7?? (better is 48...Be7=) 49.Nd8+– (49.Nd8 Kf6 50.Rh1+–) 1–0. Labahn,Wolfgang (2220) – Thomaschke,Dirk (2065), Wichern op, 1999.

7.Be2 g6 8.0–0 Bg7 9.cd5 cd5 10.Nc3 a6 11.Qc2 b5 (better is 11...0–0!?=) 12.Bb5!+/– ab5 (12...0–0!? 13.Be2 Bb7+/–) 13.Nb5+– Qb8 14.Nc7 Kf8 15.Na8 e4 16.Rfc1 Bb7 17.Nc7 ef3 18.gf3 d4 19.Bd4 Bf3 20.Qc3 Qd8 21.d3 (better is 21.Nb5!?+–) 21...Nh5+/– 22.Bg7 Ng7 23.Kf1 Qh4 24.Ne6?? (24.Qd4 Qh2 25.Ke1 Qg1 26.Kd2 Qf2 27.Kc3+–) 24...Ne6 (better is 24...fe6!? 25.Qc8 Ne8 26.Qd7 Qh2+=) 25.Qh8+= Ke7 26.Kg1?? (better is 26.h3 Qh3 27.Ke1+=) 26…Qh3 (26...Qh3 27.Qd8 Nd8 28.a4 Qg2) 0–1. Yannick – Ludger, playchess.de, 2005.

7.Nc3 a6

8.Qb3 b5 9.d3 =.

8.Qb3 Be7 9.h3 (9.Be2 e4 10.c5 Qc7+=) 9...0–0= 10.Be2 (10.c5 Qe6=) 10...Re8 (10...dc4 11.Qc4 b5 12.Qh4+=) 11.Rc1 (11.0–0 h6+=) 11...Nf8 (11...a5 12.c5 Qe6 13.Na4=) 12.0–0 (12.cd5 cd5 13.Na4 N6d7+=) 12...Ng6 (12...dc4 13.Bc4 Be6 14.d4=) 13.Na4 (13.cd5 cd5 14.Na4 e4+=) 13...Bd8+= 14.d4 (14.c5!? Qe7 15.Qc2=) 14...e4= 15.Ne5 Bc7 (15...b5 16.cb5 ab5 17.Nc5=) 16.f4 (16.Rfd1!?+=) 16...ef3= (16...Ne5?? 17.de5 (17.fe5?! Qd8+–) 17...dc4 18.Qc2+–) 17.Rf3 (17.Nf3?? Qg3 18.Qc2 Re3–+; worse is 17.Bf3 dc4 18.Qc4 Qe7+= (18...Ne5?! 19.de5 Re5 20.Rfd1+=)) 17...Ne4 (better is 17...Ne5 18.de5 Re5+=) 18.Rf7+/– Bb8? (18...Be6 19.Rc7 Ne5 20.Rg7 Kg7 21.de5=) 19.Nb6 (better is 19.cd5 Nd2 20.Qd3 Ne5 21.de5 Re5 22.Rg7 Kg7 23.Qd2 Kh6 24.Be5 Qe5 25.dc6 Ba7+–) 19...Ne5?? (better is 19...Bh3 20.Bf3 A) 20...Ne5 21.de5 Re5 22.c5+/– (22.Na8 Rg5 23.Rf4 Nd2–+; 22.gh3 Rg5 23.Bg4 Rg4 24.Kf1 Rg1 25.Kg1 Qh2 26.Kf1 Ng3 27.Ke1 Qe2; 22.Be5 Qe5 23.Rf4 Nd2 24.Bd5 cd5+=); B) 20...Ng5 21.gh3 Nf7 22.cd5 Nge5 23.de5 Ne5 24.Be5 Qe5–/+) 20.Nc8 (better is 20.de5 Qh6 21.e6+– (21.Na8?! Kf7 22.cd5 Ba7 23.Rf1 Kg8+/–)) 20...Nf3!!–+ (20...Nf3 21.Bf3 Qh2 22.Kf1 Nd2 23.Ke2 Nb3 24.Rb7 Nc1 25.Bc1 Rc8 26.cd5 Rf8–+) 0–1. Feofanov,Alexander – Jushchenko,Varvara, 2008.

8.Qb3 g6 9.d4 e4 10.Ne5 Bg7 11.0–0–0 0–0 (11...Ne5?? 12.de5 dc4 13.Rd6 (13.ed6?! cb3 14.Bc4 Be6 15.Be6 fe6+=; 13.ef6 Qf6 14.Bc4 Qe7+–) 13...cb3 14.ef6+– (14.Rf6?! Bf6 15.ef6 Bf5+–)) 12.f3 (12.g4 a5 (worse is 12...Ne5 13.de5 Qe5 14.Nd5+=) 13.ba5 Ra5= (13...Ne5? 14.de5 Qe5 15.Nd5+–)) 12...ef3 (12...b5 13.cd5 cd5 14.Kb1–/+) 13.gf3+= b5 14.c5 Qc7 15.Ne2 (15.Rg1 Bb7+=) 15...Nh5 (15...a5 16.Rg1–/+) 16.f4 Ndf6 (16...a5 17.ba5 Ra5 18.Rg1–/+) 17.Bg2 Bf5 18.Nc3 Ng4 19.Rde1 (19.Rhe1 Nhf6 (worse is 19...Nh2 20.e4 de4 21.Be4 Be4 22.Re4=) 20.Rd2 a5–/+ (worse is 20...Nh2 21.Nc6 Be6 22.Ne5+/–)) 19...Be5 (19...Nf2 20.Rhf1 Be5 21.fe5 Nd3 22.Kd1 Ne1 23.Re1–+) 20.de5 (20.fe5 Nf2–/+) 20...Nf2–+ 21.Rhg1 (21.Ne2 a5–+) 21...Nd3 (21...d4 22.ed4 Nd3 23.Kd1 Ne1 24.Ke1 Nf4 25.Be4–+) 22.Kd2 Ne1 23.Ke1 (23.Re1 Qd8 24.Ne2 Qh4–+) 23...Be6 (23...Qd8!? 24.Kd2–+) 24.Ne2 Ng7 (24...Qd8 25.Kd2–+) 25.Nd4 Qd7 (25...Nf5 26.Ne6 fe6 27.e4–+) 26.Bf3 a5 (26...Nf5 27.a4–/+) 27.Qc3 (27.a4 ba4 28.Qa4 ab4 29.Qc6–+) 27...ab4–+ 28.ab4 Ra2 29.h4 h5 30.f5? (better is 30.Bd1 Kh7 31.Bb3–+) 30...Nf5 31.Nf5 Rb2 (better is 31...Bf5 32.e6 fe6 33.Bh5 Rb2 34.Qb2 Qh7–+) 32.Qb2–/+ Bf5 33.Bh5 Qe7 34.Rg5 Re8 35.Be2 (35.Kd2 Qe5 36.Qe5 Re5–/+) 35...Qe5 36.Qe5 Re5 37.Kd2 Kg7 38.h5? (38.Rg1 f6–/+) 38...Kh6 (38...Kf6!? 39.hg6 fg6 40.Rg1–+) 39.hg6 fg6 (39...Kg5?? 40.gf7 Re6 41.f8Q+–) 40.Rg1 Re4 41.Ra1 (41.Rb1!? d4 42.Rh1 Kg5 43.ed4 Rd4 44.Kc3 Re4–+) 41...Rb4 42.Ra6 Rb2 (42...Kg5 43.Rc6 Rb2 44.Ke1–+) 43.Kd1 (43.Ke1 d4! 44.ed4 Kg5–+) 43...d4! 44.Rc6?? (44.ed4 Be4 Combination) 44...de3–+ 45.Bf1 Bg4 (better is 45...Rd2!? 46.Ke1 Bg4 47.Rd6–+) 46.Kc1 e2 47.Be2 Re2 48.Rb6 Re6 49.Rb5 Rc6 (49...Bf3 50.Kd2–+) 50.Kd2 Bf3 51.Ke3 Bh1 (51...Rf6 52.Rb2 g5 53.Rb6 Rb6 54.cb6–+) 52.Rb1 (52.Rb8 Kg7 53.Rb7 Kf6–+) 52...Bg2 (better is 52...Re6 53.Kf4 Bc6 54.Rb6–+) 53.Kd4 (53.Rb2 Re6 54.Kf4 Bc6–+) 53...g5 54.Rg1 (54.Rb2 Bf3–+) 54...Bf3 55.Kc4 (55.Ke3 g4 56.Kf4 Rf6 57.Kg3 Kg5–+) 55...g4 56.Kb5 (56.Kd4–+) 56...Kg5 57.Rf1 (57.Kc4–+) 57...Be2 0–1. Lunin,Mikhail – Zhukovsky,Viacheslav, Zhukovsky A, 2010.

8.Qb3 g6 9.d4 e4 10.Ne5 Bg7 11.a4 0–0 12.b5 (12.cd5 cd5 13.Ne2 Ne8=) 12...Re8 (12...ab5 13.Nd7 Bd7 14.ab5 Ra1 15.Ba1=+) 13.Ba3 (13.bc6 bc6 (< 13...Ne5 14.cb7 Nd3 15.Bd3 Bb7 16.Be4+/–) 14.Ba3 Qc7 15.Nd7 Bd7 16.cd5 cd5=) 13...Qe6 14.cd5 cd5 15.Nd7 Bd7 16.Be2 Rec8 (16...ab5 17.ab5 Rec8 18.0–0=) 17.0–0= ab5 18.ab5 b6 19.Bb4 Bf8 (19...h6 20.Rfc1=) 20.h3 (20.Ra8 Ra8 21.Bf8 Kf8 22.Qb4 Kg8+=) 20...h5 (20...Bb4 21.Ra8 Ra8 22.Qb4+=) 21.Ra6 (21.Ra8 Ra8 22.Bf8 Kf8+=) 21...Bb4+= 22.Qb4 Ne8 23.Rfa1 Nc7 24.Ra7 Rab8 (24...Ra7 25.Ra7 Kg7 26.Kh2+=) 25.Rc1 (25.Qb3 Kg7+/–) ½–½. Makowski,Zbigniew – Bogacka,Ewa, Olsztyn Poland, 1990.

8.c5 Qc7 9.Na4 Be7 10.d4 e4 11.Ne5 0–0 12.Be2 Ne5 13.de5 (13.Nb6 Nd3 14.Bd3 Rb8 15.Nc8 Rfc8=) 13...Nd7 14.Qd4 f6 15.e6 Ne5 16.Nb6 Rb8 17.f4 (17.Nc8 Qc8 (worse is 17...Rbc8 18.f4 ef3 19.gf3+=) 18.Rd1 Qe6+=) 17...ef3–/+ 18.gf3 Be6 19.f4 Nd7 (19...Nf7 20.Bd3–/+) 20.f5+= Bf7 21.Nd7 Qd7 22.e4 (22.Qg4 Kh8+=) 22...Qc7 (22...Rfe8 23.0–0–/+) 23.ed5 Bd5 24.Rg1 (24.0–0 a5–/+) 24...Rbe8 25.Qg4 The# threat is Qxg7 25...Rf7 26.Bd3?? (better is 26.Rg3–/+) 26…Bc5–+ (26...Bc5 27.Kf1 Qh2 (worse is 27...Bg1 28.Kg1 Re3 29.Rd1–+) 28.bc5 Qb2–+) 0–1. De Visser,Arnold – Weijerstrass,Ronald, corr NBC, 1981.

8.c5 Qc7 9.Be2 g6 (9...a5 10.0–0=) 10.Na4+= Bg7 11.Nb6 Rb8 12.d3 (12.0–0 A) 12...Nb6 13.Be5 (13.cb6?! Qb6 14.Be5 Ra8+=) 13...Qd8 14.Bb8+– (14.cb6?! Ra8+/–); B) 12...0–0+=) 12...0–0 (12...Nb6? 13.Be5 (13.cb6?! Qb6 14.Be5 Ra8+=) 13...Qd8 14.Bb8+– (14.cb6?! Ra8+/–)) 13.Qc2 e4 (13...Re8 14.Nd7 Bd7 15.d4=) 14.Nd7 Bd7 15.Be5 Qd8 16.Nd2 ed3 17.Bd3 Ng4 (17...Ra8 18.0–0+=) 18.Bg7 Kg7 19.Nf3 Qf6 20.0–0 Rfe8 21.Rad1 Ra8 22.e4 Rad8 23.ed5 cd5 24.Rfe1 Re1 25.Re1 Re8 26.Rd1 Ne5 27.Ne5 Re5 28.Bf1 ½–½. Sternik,Ryszard (1765) – Trokenheim,Marek (1815), FICGS, 2008.

8.c5 Qe6 9.Ne2 g6 (9...a5 10.d4 e4 11.Nd2=) 10.Ng3 Bg7 11.Be2 0–0 12.h4 h5 13.Qc2 Qe7 14.Ng5 Re8 15.0–0 Nf8 16.f4 N6h7 17.Rae1 Bd7 18.Rf2 Rad8 19.Ref1 Ng5 20.fg5 Be6 21.Bh5 (better is 21.e4=) 21...gh5–+ 22.Nh5 Qc7 23.Ng7 Kg7 24.h5 Nh7 (better is 24...Re7=) 25.g6+– Ng5? (better is 25...f5 26.gh7 Kh8+–) 26.gf7 Bf7 (26...Ne4 27.fe8R (< 27.fe8N Re8 28.Rf6 Kh7+–) 27...Re8 28.Rf6+–) 27.Rf7 Nf7 (27...Qf7 28.Rf7) 28.Qg6 Kf8 (28...Kh8 29.Rf7 Qf7 30.Qf7 d4 31.Qf6 Kg8 32.ed4 ed4+–) 29.h6 Re7 30.h7 Ke8 1–0. Chirpii,Alexandru (2115) – Kounine,Leonid (1650), Centrocoop, 2000.

8.c5 Qe7 9.d3 g6 10.Be2 Bg7 11.Qb3 0–0 12.0–0 Re8 13.e4 (13.d4 e4 14.Nd2 Qe6=) 13...d4 14.Na4 Nh5 15.Bc1 Nf4 16.Bf4 ef4 17.Qc2 Ne5 18.Ne5 Be5 19.Nb6 Qg5?? (19...Rb8 20.Nc8 Rbc8 21.Bg4=) 20.Bf3?? (20.h4 Qh4 21.Na8 f3 22.g3 Bg3 23.fg3 Qg3 24.Kh1 Qg2) 20...Bh3? (20...Rb8 21.Nc4+=) 21.Rfe1 (better is 21.Na8 Ra8 22.Rae1+–) 21...Rad8= 22.Nc4 Bg7 23.Qa4 Be6 24.Nd6 Re7 25.Qa5 Rb8 26.Qb6 Be5 27.Rac1 h5 28.a4 White prepares the advance b5 28...Bg4 29.Kf1 (29.Bg4 Qg4 30.f3 Qd7+=) 29...Qh4 30.b5 cb5 31.ab5 ab5 32.Qa7 Rd8 33.Ke2 (33.Bg4 A) 33...Qg4?! 34.Qa5 (worse is 34.Nb5 f3 35.gf3 Qf3–/+) 34...Rb8 35.h3= (worse is 35.Nb5 f3 36.gf3 Qf3+=); B) 33...hg4 34.Qa5 Red7 35.Nb5 f3–+ (35...Qh2?! 36.Ke2–+)) 33...Qh2–/+ 34.Rg1 Kg7 35.Nb7 f5 36.Kf1 (36.Qa5 Rb8 (36...Rb7 37.Qd8 fe4 38.de4+=) 37.Nd6 b4–+) 36...Bf3 (36...fe4 37.Be4 Rb8 38.c6–/+) 37.gf3 fe4 (37...Rb8 38.c6 fe4 39.fe4–/+) 38.fe4? (38.Qb6 Qh3 39.Ke1–/+) 38...Qh3 39.Ke2 f3 40.Kd1 (40.Ke1 Rc8 41.Rb1 Qh2–+) 40...Bh2 (40...Qe6 41.Rb1 Rb8 42.Rb5–+) 41.Re1 (41.Rh1 Qg2 42.Re1 Qf2 43.Rc2–+) 41...Qe6 42.Rb1 Rb8 43.Qa1 Reb7 44.Qd4 Be5 45.Qd5 Qf6 46.c6 Ra7 47.Qb3 (47.Re3 Rd8 48.Qc5 Bd4 49.Qb5 Be3–+) 47...Rba8 48.Re3 Ra2 0–1. Nemec,Zdenek (2045) – Soule,Larry, IECG, 2003.

8.d3 Be7 9.c5 Qe6 =.

8.d3 Be7 9.Be2 0–0 10.0–0 (10.c5 Qe6=) 10...b6 11.cd5 cd5 12.b5 (12.Rc1 Qe6=) 12...a5 (12...Bb7 13.d4+=) 13.a4= Re8 (13...Qe6 14.Rc1=) 14.Qc2 (14.Ba3 Qe6+=) 14...Bb7 (14...Qe6 15.Rac1=) 15.Rfc1 (15.d4 Rac8=) 15...d4+= 16.ed4 ed4 17.Ne4 Ne4 18.de4 Rac8 19.Qd1 Increasing the pressure on the isolated pawn on d4 19...Bf6 20.Bd4 Bd4 (20...Rcd8 21.Ra2 Re4 22.Bf6 Qf6 23.Rd2=) 21.Nd4 (21.Rc8 Rc8 22.Qd4 Qd4 23.Nd4 Be4=) 21...Be4 (21...Re4 22.Rc8 Bc8 23.Rc1 Rd4 24.Rc8 Nf8 25.Qa1=) 22.Nc6 (22.Rc8!? Rc8 23.Nc6=) 22...Qd1+= 23.Rd1 Nc5 24.Bc4 Bc2 (24...h6 25.Nd4=) 25.Rd5= Kf8 (25...Na4 26.Rd2+–) 26.f3 Re3 (26...Na4? 27.Rd2+–) 27.Rc5 bc5 The passed pawn on b5 quickly leads to threats 28.Na5 Ra8 (28...Rc3 29.Rc1=) 29.Kf2 Re7 (29...Ree8!? 30.Nb3 Bb3 31.Bb3 Ra5=) 30.Nc6+= Ra4 31.Ra4 Ba4 32.Ne7 Ke7 33.b6 Bc6 34.Ke3 (34.h3 Bb7+=) 34...f6 (34...Bb7 35.h3+=) 35.Ba6 (35.Kd2 Kd6+=) 35...Kd6= 36.Kd3 (36.h4 Bd5 37.Bb5 Bc6=) 36...Bd5 37.Bb5 g5 38.Ke3 Bb7 (38...f5 39.g3=) 39.Kd2 (39.Kd2 h5 40.Ke3=; 39.h3 Bc6 40.Ba6 Bd5=). Merten,Rainer – Kreuzer,Uwe, corr SOK, 1993.

8.d3 Be7 9.Be2 0–0 10.Qb3 b6 11.Rc1 d4 12.ed4 ed4 13.Nd4 Ne5 (13...Qd4 14.Ne4 Decoy) 14.Ne4 Ne4 15.de4 Qg6 16.0–0 Qe4 17.f4 Bf6? (better is 17...Rd8 18.fe5 Rd4+/–) 18.fe5+– Be5 19.Nc6! Bh2 (19...Qc6 20.Be5 Discovered attack (20.Be5 Deflection; 20.Be5 Overloading)) 20.Kh2 Qe2 21.Rce1 Qh5 22.Kg1 Bb7 (22...Qh6 23.Qg3 f6 24.Bf6 Rf6 25.Re8 Kf7 26.Qc7 Kg6 27.Rf6 (27.Rc8 Qe3 28.Kh2 Rf1 29.Qd6 Rf6 30.Ne5 Kf5 31.Qd7 Ke5 32.Qe7 Re6 33.Qg7 Ke4 34.Qg4 Kd3 35.Qd1 Kc3 36.Qa1 Kb3 37.Qb1 Ka3 38.Qa1 Kb4 39.Qb2 Qb3 40.Qd2 Qc3 41.Qc3 Kc3 42.Ra8 a5–+) 27...Kf6 A) 28.Rc8?! Qc1 29.Kf2 Qd2 30.Kg3 Qg5 31.Kf3 Qf5 32.Ke3 Qg5 (32...Rc8?? 33.Qe7 Kg6 34.Ne5 Qe5 35.Qe5+–; 32...Qc8 33.Qe7 Kf5 34.Qf7 Kg5 35.Qg7 Kh5 36.Qh7 Kg5 37.Qg7 Kh5 38.Ne7 Qe6 39.Kf3+–) 33.Kd3 Qf5 34.Kd2 Qc8 (worse is 34...Rc8 35.Qe7 Kg6 36.Ne5 Qe5 37.Qe5+–) 35.Qe7 Kg6 36.Ne5 Kf5 37.g4 Kf4=; B) 28.Qd8 Kg6 29.Ne5 Kh5 30.Qd1 Kh4 31.Qd4 Kg5 32.Nf7 Kg6 33.Qd6 Kh5 34.Re5 Kh4 35.Qd4 Kg3 36.Nh6 gh6 37.Re3#) 23.Qg3 (better is 23.Ne7 Kh8 24.Bg7 Kg7 25.Qg3 Qg6 26.Qc3 f6 27.Ng6+–) 23...g6 (23...f6 24.Rf6 Rf6 25.Bf6 Qf7 26.Ne7 Kh8+–) 24.Ne7# 1–0. Krebbers,Wilfried (2115) – Michalicek,Roland (1970), 21st Open Goch GER, 2010.

8.d3 Be7 9.Be2 b6 10.d4 e4 11.c5 =.

8.d4 e4 9.c5 Qe7 =.

8.d4 e4 9.Nd2 Be7 10.Rc1 0–0 11.Qb3 (11.Be2 b5 12.cd5 cd5=) 11...Re8 (11...b5 12.cd5 cd5 13.Be2=) 12.b5 (12.c5 Qe6=) 12...Nf8 (12...ab5 13.cd5 Bd8 14.dc6 bc6 15.g4=) 13.c5 Qe6 14.b6 (14.bc6 bc6 15.Rb1 Bd8=) 14...Qf5 15.h3 h5 16.Be2 Qg5 17.g3 Ng6 18.Nf1 (18.Qa4 h4 19.Nf1 Be6+=) 18...Bf8 (18...h4 19.Rb1+=) 19.Nd1 (19.Rc2 Be6=) 19...Qf5 20.Qc2 h4 21.g4 Qg5 22.Nh2 Nh7 23.f4 ef3 24.Nf3 Qe7 25.Bd3 Ng5 26.Ng5 Qg5 27.Rf1 (27.Qf2!?=) 27...Nf4+= 28.Rf3 Bg4?? (better is 28...Nd3 29.Qd3 g6+=) 29.hg4+/– (29.Rf4?! Qf4 30.hg4 Qg3 31.Qf2 Qg4=) 29...Qg4 30.Rf4 (better is 30.Be2 Ne2 31.Qe2+– (31.Ke2?! Re4+=)) 30...Qf4= 31.Qf2 (31.Qg2 g6=) 31...Qg5 (31...Qf2 32.Kf2 g6 33.Nc3+=) 32.Kd2 (32.Qf3 Re6=) 32...Re6 33.Qf5 (33.Rc2 Rae8=) 33...Qg2 (33...Qf5!? 34.Bf5 Rf6+=) 34.Kc3= Threatening mate... how? 34...g6 35.Qf4 Qg3 36.Rc2 (36.Qg3 hg3 37.Rc2 Be7=) 36...Qe1 (better is 36...Qf4!? 37.ef4 Re1–/+) 37.Rd2+= Rae8 The pressure on the backward pawn e3 grows 38.Kc2 Qg3 39.Qg3 hg3 40.Rg2 Re3 (better is 40...Bh6!? 41.Bc1 Bf8+=) 41.Ne3+– Re3 42.Bc1 Rf3 (better is 42...Re8 43.Rg3 Bg7+–) 43.Ba6! Rf2 (43...ba6 44.Rg3) 44.Rf2 gf2 45.Bf1 (better is 45.Be3 f1N 46.Bf1+–) 45...Be7 46.Be3 (46.a4 Bf6 47.Be3 g5 48.Bf2 Kh7+–) 46...Bh4 47.Kd2 f5 48.Ke2 Kf7 49.Bf2 Bd8 50.Bh3 (better is 50.a4!? g5+–) 50...Kf6 51.Bg3 g5 (51...Ke6 52.a4 Kd7 53.a5+–) 52.Be5 (52.a4 g4 53.a5 Bb6 54.cb6 gh3+–) 52...Ke6 53.a4 g4 54.Bg2 Bg5 (54...Kd7+–) 55.a5 f4 56.a6 1–0. De Visser,Arno – van der Berg, 1999.

8.cd5 cd5 (--> 5.e3 Ngf6 6.c4 c6 7.cd5 cd5 8.Nc3 a6).

8.Be2 Be7 9.c5 Qc7 10.0–0 0–0 11.Na4 e4 12.Nd4 Re8 13.Qc2 Nf8 14.Nb6 Rb8 15.f3 Ng6 16.Nc8 Rbc8 17.Nf5 Bf8 (better is 17...ef3!? 18.Rf3 Ne5+/–) 18.Bf6+– gf6 19.Ng3 Bg7 20.fe4 de4 21.Ra2 f5 22.Nf5 Rcd8 23.Bc4 (worse is 23.Ng7 Kg7 24.Bc4 Re7+/–) 23...Ne5 24.Qe4 Nc4 25.Qg4 (25.Qg4 f6 26.Qc4 Qf7 27.Qg4+–) 1–0. pcmvr (2860) – rmagas, net–chess.com, 2011.

7.Nc3 dc4

8.Bc4 Nb6 9.Bb3 Be7 (9...Bg4 10.Qc2=) 10.Qc2 Be6 11.Be6 Qe6 12.d3 (12.d4 ed4 13.Nd4 Qg4=) 12...0–0 13.0–0 Rfd8 14.Rfd1 Nfd7 15.Ne2 a5 16.Ng3 (16.ba5!? Ra5 17.d4=) 16...ab4+= 17.ab4 Bb4 18.d4 ed4 19.Nd4 Qc4 20.Ngf5 (20.Qb1!?+=) 20...Qc2–/+ 21.Nc2 Bf8 22.Bd4 (22.Kf1 g6 23.Ng3 Ra1 24.Ba1 Ra8–/+) 22...g6 23.Ng3 Nc4 24.Ne4 b5 25.Bc3 f5 26.Ng5 (26.Rd7 fe4 27.Rd8 Rd8–+) 26...Bd6 27.Ne6 Ra1 (27...Re8 28.Ned4 Ra1 29.Ra1–+) 28.Ra1 Re8 29.Ned4 (29.Ra7 Re7–+) 29...b4! 30.Nb4 (30.Nb4 c5 Double attack (30...c5 Decoy; 30...c5 Passed pawn); 30.Bb4 c5 Double attack (30...c5 Decoy; 30...c5 Passed pawn)) 30...c5 31.Nb5 (31.Nd5 cd4 32.Bd4 Kf7–+) 31...cb4 32.Nd6 Nd6 33.Bb4 Ne4 34.Kf1 (34.f3 Nec5 35.Ra3 Rb8 36.Bc5 Nc5–+) 34...Ndf6 35.Ra7 (35.Be1 Kf7–+) 35...Rb8 36.Be1 Rb1 37.f3 (37.h3 Nc5 38.Ra3 Kf7–+) 37...Nc3 38.Kf2 Rb2 39.Kg3 (39.Kg1 Nd1 40.Ra8 Kg7–+) 39...Ncd5 40.Ra3 (40.Kh3 g5 41.Bg3 g4 42.fg4 fg4 43.Kh4 Ne3–+) 40...Re2 41.Bc3 f4! 42.ef4 Nh5 43.Kh4 Rg2 44.Ra8 Kf7 45.Ra7 Ke6 46.Ra6 (46.Be1 h6 47.f5 Kf5 48.Bg3 Ng3 49.Ra5–+) 46...Kf5 (46...Kf5 47.Ra2 Ra2 48.h3 Ne3 49.Bd4 Ng2) 0–1. Murray,Findlay (1750) – Sternik,Ryszard (1765), FICGS, 2008.

8.Bc4 Nb6 9.Be2 Be6 10.d4 ed4 11.Nd4 (11.Qd4 Rd8=) 11...Be7 (11...Rd8 12.0–0=) 12.0–0 (12.Qc2 0–0+=) 12...Nc4= 13.Ne6 Qe6 14.Bc1 (14.Bc4 Qc4 15.Qf3 a5=) 14...Nb6 (14...Rd8 15.Qb3 Nb6 16.Qe6 fe6 17.e4=) 15.Qc2 0–0 16.Bb2 (16.Rd1 Rfd8=) 16...Nc4 (16...Rad8 17.Rfd1=) 17.Bc1 (17.Bc4 Qc4 18.Rad1 a5=) 17...Nb6 (17...a5 18.Na4 b5 19.Bc4 Qc4 20.Qc4 bc4 21.ba5 Ra5 22.Nc3+=) 18.Bb2 (18.Rd1 Rad8=) 18...Nc4 ½–½. Scholz,Guenter – Seger,Werner, corr, 2002.

8.Bc4 Nb6 9.Be2 Be7 10.0–0 =.

8.Bc4 Nb6 9.Be2 Bf5 10.Na4 (10.0–0 Be7 11.d4 (11.Na4 Nbd7 12.Nc5 0–0–0 13.Rc1 Kb8 14.b5 cb5 15.Bb5 Rc8) 11...e4 (11...ed4 12.Nd4 Be6 13.Qc2 Nc4 14.Bc1 0–0 15.Rd1 Ng4) 12.Ne5 Nbd5 13.Qd2 0–0 14.b5 cb5 15.Nb5 Qb6) 10...Nbd7 (10...Nfd7 11.Nc5 Nc5 12.bc5 Qc5 13.Be5 f6 14.Bd4 Qd5 15.0–0 Bd6) 11.d4 (11.0–0 Be7 (11...Qc7 12.h3 Bd6 13.Nc5 h6 14.d4 e4 15.Ne5 0–0) 12.Nc5 0–0–0 13.Rc1 h5 14.h3 Kb8 15.b5 cb5; 11.Rc1 Be7 12.0–0 0–0 13.Nc5 a5 14.Nb7 Qb8 15.Nc5 ab4) 11...e4 12.Ne5 Nd5 (12...Qc7 13.Qb3 Ne5 14.de5 Nd7 15.Qc3 0–0–0) 13.Nd7 (13.g4 Bg6 14.Nc5 Nc5 15.bc5 Qe7) 13...Bd7 (worse is 13...Kd7 14.0–0+= Qg6 15.g3 Rd8; 13...Qd7 14.Bc4 0–0–0 15.0–0 h5) 14.Nc5 (14.0–0 Qg6 15.Re1 Bd6= (15...h5=)) 14...Qg6+= 15.Rg1 (15.Kf1 Bc5 16.dc5 0–0+=) 15...Bc8 (15...Bc5 16.dc5 0–0 17.Qd4–/+) 16.Rc1 (16.Bh5 Qf5=) 16...Bd6 (16...Bc5!? 17.Rc5 b6+=) 17.Bh5= Qf5 (17...Qh6 18.Ne4 0–0 19.Nd6 Qd6=) 18.h3 (18.g4!? Qf3 19.Qf3 ef3 20.g5+=) 18...Nf6 (18...Bc5 19.Rc5 0–0 20.Qg4+=) 19.Be2 (better is 19.Bg4!? Ng4 20.Qg4 Qg4 21.hg4 Bc5 22.Rc5 Bg4 23.Rg5=) 19...0–0+= 20.Qc2 Qg6 21.g4 (21.Kf1 h6+=) 21...a5 (21...b6!? 22.Nb3 Bd7–/+) 22.b5+= cb5 23.Bb5 Rb8 24.Nb3 (24.Qc4 Rd8–/+) 24...b6 (24...Be6 25.Na5 Rfc8 26.Qe2 Rc1 27.Bc1–/+) 25.Nd2+= Bb7 26.Nc4 Rbc8 27.Qb3 Bd5 (27...Bh2 28.Rg2 Bc7 29.Ne5+=) 28.Ba6= Rb8 (28...Rc6 29.Qa4 Bh2 30.Rg2=) 29.Qb5 Bc4 30.Rc4 Ne8 31.Qd7 b5 32.Rc6 (worse is 32.Bb5 Nc7 33.Rc7 Bc7–/+) 32...Qf6 33.Kf1 (33.g5 Qe7 34.Qe7 Be7+=) 33...b4 (33...Qf3 34.Rd6 Qd1 35.Kg2 Qf3 36.Kf1 Qd1 37.Kg2 Qf3 38.Kf1=) 34.a4 (34.g5 Qe7 35.Qe7 Be7 36.ab4 Rb4+=) 34...Qe7 (better is 34...Qf3!?=) 35.Qe7+/– Be7 36.Bc4 (36.Kg2 Nf6+/–) 36...Nd6+= 37.Bb3 Rfc8 38.d5 f6 (38...Nb7 39.Be5 Ra8 40.Bd4+=) 39.Ke2+/– Kf8 40.g5 fg5 41.Be5 Rd8 42.h4 h6 43.hg5 hg5 44.Rg4 (44.Rgc1 Ra8+=) 44...Kf7 45.Bd6 Rd6 46.Re4 Kf8 47.Rd6 Bd6 48.Re6 Bh2 (48...Rd8 49.Kd3+=) 49.Ra6 Bc7 50.d6 Bb6 51.e4 Ke8 52.Be6 Bd4? (52...g4!?+/–) 53.Rc6 (53.Ra5 b3 54.d7 Ke7 55.Bb3 Rb3 56.d8Q Kd8 57.Rd5 Ke7 58.Rd4 g4+/–) 53...Rd8 54.Kd3 Bf6? (54...Ba1 55.Kc4 b3 56.Kb3 Be5 57.d7 Ke7+–) 55.Kc4 (55.Kc4 b3 56.Kb3 Rb8 57.Kc4+–) 1–0. Luzuriaga,Norberto Horacio – Vergili,Ricardo, email CAPA, 1999.

8.Bc4 Nb6 9.Be2 Bf5 10.d4 e4 11.Ne5 =.

7.Nc3 Be7

8.Qb3 0–0 9.cd5 cd5 10.Nb5 Qb8 11.Rc1 Bd8 12.Qc2 Ne8 13.Be2 a6 14.Nc3 Qd6 (14...Nef6 15.0–0=) 15.Na4 (15.0–0 Nef6=) 15...Bc7 16.b5 (16.d3 b6=) 16...f6 (16...e4 17.Nd4 Qg6 18.0–0=) 17.d4 (17.ba6 ba6 18.Bd3 g6=) 17...e4 (17...ab5 18.Bb5 Ba5 19.Nc3=) 18.Nd2 f5 19.g3 (19.Qb3 Nef6=) 19...g5 Black plans f4 (19...Ba5 20.Nc3 Nef6 21.0–0=) 20.Nc5 (20.Nc3 Ndf6+=) 20...Ndf6 (20...ab5 21.Bb5 Ndf6 22.Qb3=) 21.a4 (21.ba6 ba6 22.f4 ef3 23.Nf3 Ne4=) 21...f4 (21...ab5 22.ab5 Qe7 23.Na4=) 22.gf4+= gf4 23.Rg1 (23.Qb3 fe3 24.fe3 Qd8+=) 23...Kh8= 24.Nde4 (24.ef4 ab5 25.Bb5 Qf4+=) 24...Ne4 (24...de4 25.Ne4 Ne4 26.Qe4 Ba5 27.Kd1 Nf6=) 25.Ne4+= fe3 (better is 25...Qh6!? 26.Ng5 fe3 27.fe3 Qh2=) 26.Nd6+/– ef2 27.Kd2 fg1Q (27...fg1R 28.Rg1 Bd6 29.ba6 ba6 30.Rf1 Rf1 31.Bf1+=) 28.Rg1 Bd6 29.Kc1 (29.ba6!? ba6 30.Rf1 Rf1 31.Bf1+=) 29...Bf5 30.Bd3 (30.Qb3 ab5 31.Qd5 Bh2 32.Rg2 Bf4 33.Kd1+–) 30...Rc8–/+ 31.Bf5 Rc2 32.Bc2 ab5 33.ab5 Bh2 34.Rh1 (34.Re1 Bd6+=) 34...Bf4 (34...Rf2 35.Re1 Nd6 36.Re7+=) 35.Kb1 (35.Kd1 Nf6+=) 35...h6 (35...Nf6 36.Ba3 Rf7 37.Rf1+=) 36.Rh5 (36.Bc1 Bc1 37.Kc1 Rf6+=) 36...Bg5–/+ 37.Ba3 (37.Rh2 Rf3–/+) 37...Rf1 38.Ka2 Nc7 (38...Rf2 39.Kb1–/+) 39.b6 (39.Rh2 Kg7–/+ (worse is 39...Nb5 40.Bd3 Na3 41.Bf1+/–)) 39...Nb5 (39...Rf2 40.Kb1 Na8 41.Bc5–/+) 40.Bc5–+ Rf2 41.Kb1 (41.Kb2 Kg7 42.Rh3 Bf6–/+) 41...Rd2 (41...Be3–+) 42.Rh1 (better is 42.Bb3!? Nc3 43.Ka1–+) 42...Nd4–+ 43.Ba4 (43.Bd4 Rd4 44.Rd1 Rb4 45.Ka2 Kg7–+) 43...Ne2 Threatening mate... how? 44.Rh3 d4?? (better is 44...Kg7–+) 45.Bb4+= Nc3 46.Rc3 dc3 47.Bc3 ½–½. Heinola,Kari – Alava,Mikko, Finland, 1984.

8.Qb3 0–0 9.cd5 Nd5 10.Rd1 =.

8.Qb3 0–0 9.cd5 Nd5 10.Be2 a5 11.Nd5 cd5 12.0–0 b6 13.Bb5 e4 14.Nd4 Ne5 15.ba5 Ng4 The mate threat is Qxh2 16.f4 ef3 (worse is 16...Ra5 17.Nc6+/–) 17.Nf3 Ra5 18.a4 Ra7 (18...Be6 19.Ba3 Qd8 20.Qd3+=) 19.h3+/– Nh6 20.Be5 Qg6 21.Bd3 Qe6 (21...Bf5 22.Bf5 Nf5 23.Qd5+/–) 22.Bb8 Ra8 23.Nd4 Qd7 24.Bb5 Qb7 25.Bf4 Nf5 26.Rac1 Nd4 27.ed4 Ra7 28.Qg3 Bf6 29.Bc6 (29.Bd6!? Be7 30.Be5+–) 29...Bd4+/– 30.Kh1 Qe7 31.Bd6 Qd8 32.Bf8 Kf8 (32...Qf8 33.Bd5 Ba6 34.Rf7 Rf7 35.Rc7+–) 33.Qb8 Rc7 34.Bd5!! Rc1 (34...Qd5 A deflection 35.Rc7) 35.Rc1 Qd5 36.Qc8 (worse is 36.Rc8 Ke7 37.Re8 Kf6+–) 36...Ke7 37.Rc6 (better is 37.Qc7 Kf8 38.Rc6 g5+–) 37...Be5 38.Qb7 Qd7 39.Rb6 g6 (39...Bc7 40.Ra6 Be5 41.Qb4 Bd6 42.Qh4 Ke6 43.Qe1 Kf5 44.Qf2 Ke6+–) 40.a5 Bc7 (40...Bd4 41.Rb5 Qb7 42.Rb7 Ke6+–) 41.a6 Bb6 42.Qb6 Qd2 43.Qb7 Kf6 44.Qb8 (44.Qb8 h5 45.a7+–) 1–0. Saint Jean,Benoit – Buijck,Frank, internet, 2001.

8.Qc2 0–0 9.cd5 Nd5 10.d4 Nc3 11.Bc3 ed4 12.Bd4 +=.

8.Qc2 a5 9.cd5 (9.ba5 dc4 10.Bc4 Ra5 11.d4 ed4 12.Rd1 Nb6 13.Rd4 Qc7) 9...Nd5 10.ba5 0–0 11.Bd3 g6 12.Ne4 Qc7 13.a6 b5.

8.Qc2 dc4 9.Bc4 Nb6 10.Bd3 Bg4 11.Ne4 Ne4 12.Be4 Bf6 13.Rd1 Bf3.

8.cd5 cd5 9.Nb5+/– Qb8 (9...Qb6 10.Ne5 a6 11.Bd4 Qd8 12.Nc3 Ne5 13.Be5 Bf5) 10.Rc1 Bd8?? (10...0–0 11.Nc7 e4 12.Nd4+– (12.Na8 Qa8 13.Nd4 Ne5) 12...Ne5 13.Na8 Qa8) 11.Qc2 (better is 11.Rc8 Qc8 12.Nd6 Ke7 13.Nc8 Rc8 14.Ne5 Ne5 15.Be5+–) 11...a6? (11...0–0 12.Nc7 Bc7 13.Qc7 Qc7 14.Rc7+=) 12.Nc7?? (better is 12.Qc8 ab5 13.Qb8 Rb8 14.Ne5 Ne5 15.Be5+–) 12...Bc7 13.Qc7 Qc7 14.Rc7 Kd8 15.Rc1 e4 16.Ne5 Ne5 17.Be5 Ne8 18.Be2 f6 19.Bd4 Be6 20.Bb6 Kd7 21.0–0 Rc8 22.Rc8 Kc8 23.Rc1 Kb8 24.a4 Bd7 25.a5 Rf8 26.d3 Bb5 27.Rc3 Rf7 28.Kf1 Nd6 29.de4 Be2 30.Ke2 Ne4 31.Rd3 Rd7 32.f3 Ng5 33.e4! Ne6 (33...de4 34.Rd7 Pinning (34.Rd7 Deflection)) 34.g3 Nc7 35.Bc7 Rc7 36.ed5 Rc2 37.Ke3 Kc7 38.h4 Kd6 39.Kd4 Re2 40.g4 Re1 41.h5 h6 42.Re3 Rd1 43.Rd3 Re1 44.Rd2 Re5 Exerts pressure on the isolated pawn 45.Kc4 Re3 46.Rd3 Re5 47.Rd4 Re3 48.Re4 Rf3 49.Re6 Kd7 50.Rb6 Kc8 51.Kc5 Rf4 52.Re6 Kd7 (worse is 52...Rg4 53.Kd6 Kd8 54.Re7 Rb4 55.Rg7+–) 53.Rb6 Kc8 54.Re6 Kd7 (54...Rg4 55.Kd6 Kd8 56.Re7+–) 55.Rb6 ½–½. wwgia (1735) – spargeltarzan (1680), gameknot.com, 2013.

8.Qc2 a6

9.c5 Qc7 10.Be2 e4 11.Nd4 0–0 12.0–0 Ne5 13.h3 Be6.

9.c5 Qe6 =.

9.Be2 0–0 10.c5 Qc7 =.

9.Be2 0–0 10.h4 Re8 (10...dc4 11.Ne4 Ne4 12.Qe4+=) 11.c5= Qc7 12.0–0–0? (12.0–0!?=) 12...b6 (12...a5!? 13.d4 ab4 14.ab4–+) 13.d4 (13.cb6 Qb6 14.d4 e4–/+) 13...e4 14.Ng5 (14.Ne5 bc5 15.Nd7 Bd7 16.bc5 Reb8–/+) 14...Bf8 (14...h6 15.cb6 Qb6 16.Na4–+) 15.f3 (15.cb6 Qb6 16.Kd2 a5–/+) 15...bc5 (15...h6 16.cb6 Nb6 17.Nge4 de4 18.Ne4–+) 16.dc5 ef3 (16...h6 17.Nh3–/+) 17.Bf3 g6 (17...Ne5 18.e4 Nf3 19.gf3 a5 20.ed5 ab4=) 18.e4= de4 (18...a5 19.ed5 ab4 20.d6=) 19.Nce4 (worse is 19.Be4 A) 19...Ne4 20.Nce4 (20.Nge4 Be7+/–) 20...Qf4 21.Kb1+/–; B) 19...a5–/+) 19...Ne4 20.Ne4 Qf4 21.Qd2 (better is 21.Nd2!? a5 22.Bc6+/–) 21...Re4+= 22.Qf4 Rf4 23.h5 (23.Bc6 Ra7+=) 23...Bg7 (23...Rc4 24.Kd2 Bb7 25.Kd3–/+) 24.h6 (better is 24.Bc6!? Rc4 25.Kb1+=) 24...Bb2–+ 25.Kb2 Rf6 26.Rhe1 Re6 (26...Kf8 27.Rd6–/+) 27.Bc6+= Ra7 (27...Rc6 Theme: Deflection from e8 28.Re8) 28.Bf3 (28.Kc3 Rc7 (28...Rc6?? 29.Re8 Nf8 30.Rdd8 Rc5 31.bc5 Rd7 32.Rf8) 29.Bd5 Re1 30.Re1 Kf8–/+) 28...Re1 (28...Rc7 29.Bd5 Re1 30.Re1–/+) 29.Re1 Kf8 30.a4 (30.g3 f6–/+) 30...f6 31.c6 Ne5 32.Rd1 Ke7 33.Kc3 Rc7 (33...Be6 34.Re1–/+) 34.b5 ab5 35.ab5 Nf3 (35...Bg4 36.Bg4 Ng4 37.Re1 Kd8 38.Rd1 Ke8 39.Rd6–/+) 36.gf3+= Bb7 37.Re1 Kf7 (better is 37...Kd6!?=) 38.Kb4+/– Rc6 (38...Bc8 39.Rc1=) 39.bc6 Bc6 40.Rc1 ½–½. Beerens,J – de Jong,Dick P, corr NLD cup, 1995.

9.Be2 0–0 10.Nh4 Qe6 11.cd5 cd5 12.Nf5 Bd8 13.0–0 Nb6.

9.Be2 b6 10.0–0 =.

8.cd5 Nd5

9.Qb1 0–0 10.Bd3 g6 11.0–0 Nc3 12.dc3 Qc7 13.c4 Bf6.

9.Rc1 0–0 10.b5 (10.Qc2 a5 11.b5 Nc3 12.Qc3 cb5 13.Bb5 Qg6=) 10...Nc3+= 11.Bc3 c5 (11...e4 12.Nd4 Qa3 13.bc6 bc6 14.Nc6=) 12.d3 (12.Qc2 Bf6=) 12...b6+= 13.Be2 (13.Nd2 a6+=) 13...Bb7 (13...a6 14.a4+=) 14.0–0 f5 (14...a6!? 15.d4 cd4 16.ed4 e4=) 15.d4+= cd4 16.Bb4 Qf6 17.Be7 Qe7 18.Rc7 (18.ed4 Rad8+=) 18...Bf3= 19.Bf3 Rad8 20.Bc6 (20.Qb3 Kh8 21.ed4 ed4=) 20...Qd6 21.Ra7 d3 22.e4 (22.Qb3!? Kh8 23.Bd7 Rd7 24.Rd7 Qd7 25.Rc1+=) 22...fe4–/+ 23.Qg4 (23.Be4 Nc5 24.Bc6 e4–/+) 23...Rf7 (23...Rf4!? 24.Qg3 g6–/+) 24.Qe4+= (24.Be4? Nf6 25.Bh7 Kh7 26.Qh4 Kg8 27.Rf7 Kf7 28.Qc4 Kf8–+) 24...Rf4 25.Qe3 Nc5 26.g3 (26.Rd1 Qe6+=) 26...Rc4 (26...Ra4 27.Ra4 Na4 28.Qc1–/+) 27.Rd1 (27.Qg5 Ne6 28.Qh5 d2+=) 27...Rc2 (27...Ra4!? 28.Ra4 Na4+=) 28.Qg5= Do you see the mate threat? 28...Ne6 29.Qf5 Rf8 30.Qd3 (30.Rd3 Rc1 (30...Rf5? 31.Rd6 Nf8 32.Be4+–) 31.Kg2 A) 31...Rf5 32.Rd6 Nf8 33.Bd5 Kh8 34.Be4+– (34.Rb6?! Rc2+–); B) 31...Qc6 32.bc6 Rf5–+) 30...Qc5 Threatening mate... how? 31.Qe3 (31.Rd2 Rf2 32.Qc2 Rd2 33.Qc5 Nc5+= (33...bc5? 34.b6 Nd8 35.Be4+–)) 31...Nd4= (worse is 31...Rcf2 32.Qc5 Nc5 33.Re7+/–; 31...Rff2 32.Qc5 bc5 33.b6+–) 32.Qg5?? (better is 32.Ra8=) 32...Nf3–+ 33.Bf3 Qf2 0–1. Morriss,Pete – McPhillips,K (2215), Galway Masters, 2006.

9.Qc2 a5 10.ba5 0–0 11.d4 +=.

9.Qc2 a5 10.ba5 Ra5 11.Nd5 Qd5 =.

9.Qc2 a5 10.b5 0–0 11.bc6 bc6 12.Bd3 f5 (12...Nc3!? 13.Bc3 g6+=) 13.Bf5+/– Rf5 14.Qf5 Nc5 15.Qc2 Ba6 16.Nd5 (16.Ne4 Qg6 17.Ne5 Qg2+=) 16...Nd3+= 17.Qd3 Bd3 18.Ne7 Qe7 19.Ne5 (19.Be5? Rf8–+) 19...Ba6 20.Bc3 (worse is 20.Nc6 Qb7 21.Bc3 Qc6–/+) 20...Qg5 21.g3 (21.Nc6 Qg2 22.0–0–0 Qc6–+) 21...Qh5 22.g4 Qh4 (22...Qh3 23.Kd1= (worse is 23.Ba5 Re8 24.d4 c5=; 23.Nc6?? Qf3 24.d3 Qh1 25.Ke2 Qc6–+)) 23.d3+= Re8 24.Rd1 (24.h3 Qf6 25.0–0 Bd3+=) 24...Qh3 (24...Qe7 25.0–0= (25.Nc6? Qc5 26.Kd2 Qc6–+)) 25.Ke2 Qg2 26.Rhg1 Qh2 27.Rg3 (27.Nf3 Qc7=) 27...Qh6 28.a4 (28.Rc1 Qd6 29.f4 g5+=) 28...Qe6+= 29.f4 Qb3 30.Ba5 g5 31.Rc1 (better is 31.Rf3!? Bc8 32.Bc7 Re5 33.Be5 Bg4 34.Rd2 gf4 35.Kf2 Bf3 36.Kf3 fe3 37.Ke3 Qa4 38.Rg2 Kf7 39.d4–+) 31...Qa4–/+ 32.Bd2 Qe4 33.Kf2 Bd3 (33...Bd3 34.Nd7 Qe6–+) 0–1. Pech,Jaroslav – Trokenheim,Marek, FICGS, 2009.

9.Qc2 a5 10.b5 0–0 11.d4 ed4= 12.Nd4 Ne5 13.Nd5 cd5 14.Be2 Bd7 15.Nf5 Bf5 16.Qf5 Nc4 17.Bc4 dc4 18.Qg4 Qg6 19.Qg6 (worse is 19.Qc4 Rac8 20.Qb3 Qg2–+) 19...fg6 20.Ke2 a4 21.Rhc1 Rac8 22.b6 Rf5 23.Bd4 Rb5 (23...Rh5 24.h3 Rg5 25.g3+=) 24.Ra2= Bf6 25.Rac2 Bd4 26.ed4 Rb6 27.Rc4 Rb2 28.Ke3 Rb3 29.Kd2 Rf8 30.Rc8 Ra3 31.Rf8 Kf8 32.Rc8 Ke7 33.Rc7 Kd6 34.Rb7 Ra2 35.Ke3 a3 36.Ra7 Ra1 37.Ra5 (37.Rg7?? a2 38.Kf4 Re1–+) 37...Kc6 38.Kd3 a2 39.Ke2 Kb6 40.Ra3 g5 41.h3 h5 42.g4 g6 43.d5 Kc5 44.Ra5 Kd6 45.Kf3 h4 46.Kg2 Kc7 47.Ra6 Kb7 48.Ra3 Kb8 ½–½. Wantoch_Rekowski,J (2245) – Alferov,VD, 3rd Webchess Open Tournament prel., 2008.

9.Qc2 a5+= 10.Bd3 ab4 11.Nd5 b3 12.Qb3 cd5 13.Bb5 0–0.

9.d4 Nc3 10.Bc3 e4 =.

9.d4 ed4 10.Qd4 Nc3 11.Qd6 Bd6 12.Bc3 0–0 13.Rd1 Be7 14.Bc4 Nb6 15.Bb3 (15.Bd3 a5 16.ba5 Nd5=) 15...Bg4 (15...Be6 16.Be6 fe6 17.e4+=) 16.Ke2 Rad8 17.h3 Bf5 (17...Be6 18.Be6 fe6 19.Rd8 Rd8 20.Rc1+=) 18.Ne5 (18.Bd4 Bd6+=) 18...Nd5 19.Bd5 cd5 20.g4 Be6 21.Bd4 Bd6 22.Nd3 b6 23.Be5 Bc8 24.Bd6 Rd6 25.Nf4 Rfd8 (25...Ba6 26.Kf3+=) 26.Rd4 Ba6 27.Kd2 Bb7 (27...Bc4 28.Rc1+=) 28.Rc1+/– Bc6 ½–½. Hebels,Albert – Lavoisier,Fabrice, corr ICCF–Cup8/9 V072, 1990.

9.Nd5 Qd5 10.Qc2 a5 =.

9.Ne4 Qe6 10.Bc4 (10.d4 ed4 11.Qd4 N7f6+=) 10...Qg6 11.d3 (11.Ng3 e4 12.Ne5 Ne5 13.Be5+=) 11...0–0 (11...Qg2 12.Rg1 Qh3 13.Ne5 Ne3 14.Bf7 Kd8 15.Qe2 Ng2 16.Kd2=) 12.Ng3 (12.0–0 b5 13.Bb3 f5+–) 12...Bf6 13.h3? (better is 13.Qb3=) 13...Qg5?? (better is 13...Ne3 14.fe3 Qg3 15.Kf1 e4–+) 14.h4 (better is 14.Ng5 Bg5 15.Qf3+–) 14...Ne3?? (better is 14...Qg6 15.h5 Qh6=) 15.fe3?? (better is 15.hg5 Nd1 16.Rd1+–) 15...Qg3–+ 16.Kf1 e4 (16...Nb6 17.Qe1 Qg6 18.Ne5 Qf5 19.Qf2 Nc4 20.dc4–+) 17.Rh3 Qd6 18.Nd4 Ne5 19.Rh1 b5 (19...ed3?! 20.Bd3 Nd3 21.Qd3–+; 19...Nd3?! 20.Bd3 ed3 21.Qd3–+) 20.Bb3 Nd3 21.Bc3 (21.Qc2 a5 22.Rd1 Qg3–+) 21...Bd4 (21...Qg3 22.Qd2–+) 22.Bd4 Qg3 (22...a5 23.Qd2–+) 23.Ra2 (23.Qc2 Be6 24.Be6 fe6 25.Kg1 Rf2 26.Qf2 Qf2 27.Kh2 e5–+) 23...Bg4 24.Qa1 Be6 25.Rh3 (25.Be6 fe6 26.Kg1 Rad8–+) 25...Qg6 (25...Bh3 26.gh3 Qh3 27.Kg1 Qh4 28.Rg2–+) 26.Qd1? (26.Be6 fe6 (26...Qe6?! 27.Bg7 Rfd8 28.Bf6–/+) 27.Kg1 a5–+) 26...Bb3 (better is 26...Bh3 27.gh3 Rad8 28.Qg4–+) 27.Qb3 Nc1 28.Qb2 Na2 29.Qf2 (29.Qa2 a5 30.h5 Qd6–+) 29...f6 (better is 29...Nc1–+) 30.Qa2 Qf7 31.Qb2 (31.Qf7 Kf7 32.g4 Rfd8–+) 31...a5 32.ba5 (32.Kg1 ab4 33.ab4 Qh5–+) 32...Ra5 33.Bc3 (33.Qc3 Ra6–+) 33...Ra7 34.Rg3 (34.Kg1 Rfa8–+) 34...Kh8 (34...Qh5 35.Qb3 Kh8 36.Qb4 Qd1 37.Kf2–+) 35.Rg4 (35.Kg1 Qh5–+) 35...c5 (35...Qe7 36.Qb4 c5 37.Qb5 Ra3 38.Qc4–+) 36.Rf4 (36.Qb5 Ra3 37.Qc5–+) 36...Qc4 37.Kg1 (37.Ke1 Rfa8–+) 37...Raf7 (better is 37...Rfa8!? 38.h5 Ra3 39.Bd2–+) 38.h5 (38.Qc2 Qd3 39.Qc1 Rd8–+) 38...h6 (38...Qd3 39.Qd2–+) 39.g4 (39.Qc2 Qd3 40.Qd3 ed3–+) 39...Qd5 (39...Qd3 40.Qd2–+) 40.Qc2 (40.Qb5 Rb7 41.Qa4 Rb3–+) 40...Qd3 41.Qc1 (41.Qd3 ed3 42.e4 Ra8–+) 41...Rd8 (41...f5 42.gf5 Rf5 43.Be5–+) 42.Kf2 (42.Ba5 Rd5–+) 42...b4 (42...Rc7 43.Ba5 Rdd7 44.Bc7 Rc7 45.Kg2–+) 43.ab4 cb4 44.Bb4 Rb8 (44...Rfd7 45.Kg1–+) 45.Qc5 (45.Qd2–+) 45...Qb5 (better is 45...Rfb7 46.Bc3–+) 46.Re4 (46.Qb5 Rb5 47.Re4 f5–+) 46...Qc5 (46...Qb7!? 47.Qf5–+) 47.Bc5 Rc8 48.Bd4 (48.Bd6 f5 49.Rf4 Rd7–+) 48...Kg8 (48...Rfc7 49.Kf3–+) 49.Re6 ½–½. Schinkmann,Karl – Bierbach,Utz Friedrich (2055), GER–ch Seniors, 2001.

9.Ne4 Qg6 10.Qc2 =.

9.Ne4 Qg6 10.d3 a5 =.

9.Ne4 Qg6 10.d3 Qe6 11.d4 =.

9.Ne4 Qg6 10.d3 f5 11.Nc5 (11.Nc3 Qd6=) 11...e4 12.Nd7 (12.Ne5 Ne5 13.Be5 b6=+) 12...ef3=+ (< 12...Bd7 13.Ne5 Qe6 14.de4 fe4 15.Qh5 Kf8 16.Nd7 Qd7 17.Rd1+/–) 13.Ne5 fg2 14.Ng6 gh1Q 15.Nh8 g6 16.Qb3 (16.Be5 Nb4! 17.Kd2 Nd5–/+) 16...Be6 17.Be5?? (better is 17.Qa4–/+) 17...Ne3!!–+ 18.Qe6 (18.fe3 Bb3) 18...Qf1 (18...Nf1 19.Qg8 Kd7 20.Qa8 Nh2 21.Kd2 Nf3 22.Ke2+–) 19.Kd2 Qf2 20.Kc3 Qc2 (21.Kd4 Rd8 22.Bd6 Rd6 23.Qd6 Bd6 24.Ke3 f4 25.Kf3 Qd3 26.Kf2 Qd4 27.Kg2 Qb2 28.Kf3 Qa1 29.Ke2 Qb2 30.Kd3 Qb3 31.Kd2 f3 32.Ng6 Qb2 33.Ke3 Qe2 34.Kd4 hg6 35.Kc3 Be5 36.Kb3 Qd1 37.Kc4 Qd5#) 0–1. Labahn,Wolfgang (2225) – Feher,Gyula (2380), Eger, 1993.

9.Ne4 Qg6 10.Bd3? f5–+ 11.Be2?? (better is 11.Ng3 e4 12.Bc2 ef3 13.Qf3–+) 11...fe4 12.Ne5 (12.Nh4 Qf7 (12...Bh4?! 13.Bh5 Bf2 14.Kf1–+) 13.g3 0–0–+) 12...Qg2 13.Bf1 (13.Rf1 0–0 14.Qb3 Ne5 15.Be5–+) 13...Qh1 14.Qh5 (14.Nd7 Kd7 15.Qg4 Kd8–+) 14...g6 15.Ng6 N7f6 16.Qh4 (16.Qh6 Rg8 17.Ne7 Ke7 18.Bf6 Nf6–+) 16...Rg8 17.Ne5 Rg1 18.Ke2 Bg4 19.f3 Bf3 20.Kf2 Rg2! 0–1. Macedo,A Soares De (2050) – Miranda Neto,J Amorim (2115), Final do Campeonato Potiguar Absoluto D, 2008.

9.Qb3 0–0

10.Rc1 A) 10...a5 11.ba5 (11.Nd5 cd5 12.Bc3 b6 13.Qb2 e4+=) 11...Ra5 12.d4 ed4 13.Nd4 Nc3=; B) 10...Nc3 11.Qc3 Qg6 (11...Bf6 12.d4 ed4 13.Nd4 a5=; 11...Rd8 12.Bd3 a5 13.ba5 Bf6=) 12.d3 Bd6 13.Qc4 Re8=.

10.Bc4 N5b6 11.Be2 =+.

10.Bc4 Nc3 11.Qc3!? Bf6 12.d3 =.

10.Bc4 Nc3 11.Qc3 Qg6 12.g3 (12.Ne5? Ne5 13.Qe5 Bf6–+ (13...Qg2 14.Bf1 Qg5 15.Qg5 Bg5 16.Rg1+=)) 12...Bf6 13.Nh4 Bh4 14.gh4 Qh5 15.Rg1 Re8 16.Qb3 b5 17.Be2 Qh4 18.Qc2 Bb7 19.Qf5 Rad8 20.d4 e4 21.d5 g6 22.h3 Qe7 23.dc6 Bc6 24.Bb5 Bb5 25.Qb5 Qe6 26.Rg4 a6 27.Qa5 Nb6 28.Qh5 ½–½. Wantoch_Rekowski,Jacek (1850) – Ballero,Andrea, OP–2010–0–01301, 2010.

10.Bc4 Nc3 11.Bc3 b5 12.Be2 Bf6 (12...a5 13.0–0=+) 13.0–0 (13.d4 ed4 14.Nd4 a5=) 13...Bb7 (13...e4 14.Nd4 a6 15.Nf5=) 14.Rfd1 (14.d4 a5+=) 14...e4= 15.Nd4 Rfe8 (better is 15...Be5!?=+) 16.Nf5 Qe6 17.Qe6 Re6 18.Bg4 (18.Rac1 Bc3 19.dc3 Rd8+/–) 18...Bc3 (18...Ne5!? 19.Be2 Rd8=) 19.dc3+= Ne5 20.Bh3 (20.Be2 Rf6 21.Nd6 Ba6+–) 20...Nd3 (20...g5 21.Nd6 Rd6 22.Rd6=) 21.Ng3+/– Re7 (21...Ree8 22.Ne4! Red8 23.a4+/–) 22.Ne4! Nb4 (22...Re4 23.Rd3) 23.ab4 (23.cb4?! Re4 24.Rd7 Rb8+–) 23...c5 (23...g6 24.Nc5 f5 25.g4+– (< 25.Nb7 Rb7 26.g4 Rf7+–)) 24.Nc5 Bc6 25.Bd7 (25...Bd7 26.Nd7+–; 25.Ra6 Rc7+–) 1–0. Friberger,Torbjoern – Hultin,Inge, corr SSKK 2–738, 1990.

10.Rd1 a5 11.ba5 Ra5= (11...Nc3 12.Qc3 Bf6 13.d4 ed4=; 11...Nc5 12.Qc2 Nc3 13.Bc3 e4=; 11...Bd8 12.a6 ba6 13.Qc2 Rb8=) 12.d4 ed4 13.Nd4 Nc5 =.

10.Rd1 a5 11.d4 Nc3 12.Qc3 ab4 13.ab4 e4 –/+.

10.Rd1 a5 11.d4 Nc3 12.Bc3 ab4 13.de5 Qd1 =.

10.Rd1 a5 11.d4 Nc3 12.Bc3 e4 13.Nd2 Nf6 14.ba5 Nd5 (better is 14...Be6!? 15.Bc4 Bc4 16.Nc4 Qe6+=) 15.Ne4+/– Qg6 16.Nc5 Rb8 17.Rc1 Bc5 18.dc5 Be6 19.Qb2 Nc3 20.Rc3 Rbd8 21.Rc1 (21.Qb7 Rb8 22.Qb8 Rb8–+) 21...Rd7 22.Qb1 Bf5 23.Qb4 Rfd8 24.Qh4 Rd2 25.Qf4 Qf6 26.Bc4 g5 27.Bf7 (27.Qg3 Rd1!? 28.Rd1 Qc3 29.Ke2 Qc2 30.Kf3 Qe4 31.Ke2 Bg4 32.f3 Qc4 33.Ke1 Qc3 34.Kf2 Qc2 35.Kf1 Rd1 36.Qe1–+) 27...Kf7–+ (27...Qf7?! 28.Qg5 Kf8 29.f3+=) 28.Qc7?? (better is 28.Qf3–+) 28...R2d7 29.Qd7 Rd7 (29...Rd7 30.0–0 Qb2–+) 0–1. Pierred (2200) – Cannot lose (2540), Rated game, 3m + 0s, 2005.

10.Rd1 a5 11.d4 ed4 12.Nd5 cd5 13.Nd4 ab4 +=.

10.Rd1 a6 A) 11.Qc2 f5 12.e4 fe4 13.Ne4 Qg6=; B) 11.e4 Nc3 (11...Nf4 12.d4 Qg6 13.g3 Qg4=) 12.Qc3 Re8 13.Qe3 Qg6+=; C) 11.Be2 Nc3 (11...a5 12.ba5 Nc5 13.Qc2 Nc3=) 12.dc3 Qg6 13.0–0 e4=.

10.Rd1 Rb8 11.e4 (11.Qc2 f5 12.e4 fe4 13.Ne4 Qe6=) 11...N5b6 (11...Nc3 12.Qc3 Bf6 13.Be2 Rd8=; 11...Nf4 12.d4 Qg6 13.g3 Qg4=) 12.Na4 Na4 13.Qa4 Ra8 =.

10.Rd1 Nc3 A) 11.dc3 Qg6 12.c4 e4 13.Nd2 a5+=; B) 11.Bc3 e4 (11...a5 12.d4 ab4 13.de5 Qd1=; 11...b5 12.Qb1 f5 13.Qb3 Kh8=; 11...Bf6 12.d4 Qe7 13.Qb1 e4=) 12.Ng1 Ne5 13.Be5 Qe5+=; C) 11.Qc3 Qg6 (11...Bf6 12.d4 ed4 13.Nd4 a5=) 12.d3 Re8 13.h4 Bf6=.

10.d4 Nc3 11.de5 Ne5 12.Qc3 Nf3 13.gf3 Bf6 –/+.

10.d4 Nc3 11.de5 Ne5 12.Ne5 Qe5 13.Qc3 Qc3 14.Bc3 Rd8 =.

10.d4 Nc3 11.de5 Ne5 12.Ne5 (worse is 12.Qc3 Nf3 13.gf3 Bf6–/+) 12...Qe5 13.Qc3 Qg5 14.h4 (14.Qe5 Qe5 15.Be5 a5=) 14...Qh6+= 15.Be2 Bf6 16.Qc1 Be6 (16...Bh4? 17.g3+–) 17.Bf6 Qf6 18.f3 (18.h5 Bd5+=) 18...Rfd8–/+ 19.g3 Rd7 20.Kf2 Rad8 21.Rd1 Rd1 22.Bd1 Bc4 23.Rb1 Qe6 24.Be2 (24.Kg2 b6–/+) 24...Be2 25.Ke2 Qh3 26.Qg1 Qf5 27.Qc1 Qd3 (27...a6 28.Rb2–/+) 28.Kf2 g6 29.g4 Qd2 30.Kg3 (30.Qd2 Rd2 31.Kg3 Rd3+=) 30...Qc1 (30...Qd6 31.Kg2+=) 31.Rc1+= Rd3 32.a4 Re3 33.b5 (33.Rd1 Ra3 34.a5 Ra4 35.Rd8 Kg7–/+) 33...cb5–/+ 34.ab5 Re5 35.Rc8 Kg7 36.b6 ab6 37.Rc7 Rb5 38.g5 Rb1 39.Rb7 b5 40.Kf4 b4 41.Ke3 b3 42.Kd2 b2 43.Kc2 Rf1 44.Rb2 (44.Rb3!?–/+) 44...Rf3 45.Rb4 h6 46.Rg4 f6 47.Kd2 fg5 48.hg5 hg5 49.Rg5 Kf6 50.Rg1 Kf5 51.Ke2 Rf4 (51...Rc3 52.Rb1–+) 52.Rg3 Ra4 53.Kf2 (53.Rg1 g5–+) 53...Ra2 54.Kg1 Kf4 0–1. De Visser,Arno – van der Mee, MSC, 1992.

10.h4 a5 11.b5 (11.ba5 A) 11...Nc3 12.Qc3 Bf6 13.e4 Nc5=; B) 11...Nc5 12.Qc2 Nc3 13.Qc3 Bf6=; C) 11...Ra5 12.Nd5 (12.d4 ed4 13.Nd4 Nc5=) 12...Rd5+= 13.Bc4 Nc5=; D) 11...Rd8 12.Nd5 cd5 13.Bc3 Qe6=; E) 11...Bd8 12.Ne4 Qg6 13.a6 ba6+=; 11.Nd5 cd5 12.ba5 Ra5 13.Rc1 b6+=) 11...Nc5 (11...Nc3 12.Qc3 Bf6 13.bc6 bc6+=; 11...Rd8 12.d4 Nc3 13.Qc3 Bf6+=) 12.Qc2 Nc3 13.Bc3 (13.Qc3 Bf6=) 13...e4 14.Ng5 (14.Ne5 cb5 15.Bb5 Bf5–/+) 14...Bf5 (14...Qd5 15.f3 Nd3 16.Bd3 ed3 17.Qb2–/+) 15.Be2 (15.g4 Bg4 16.Ne4 Qg6–/+) 15...cb5 (15...h6 16.g4 Nd3 17.Bd3 ed3 18.Qb2–/+) 16.Bb5 Rac8 17.Be2 (17.Qb2 Qh6 18.f4 Bd7–/+) 17...h6 18.g4 Bd7 19.Ne4? (better is 19.Nh3–/+) 19...Ne4–+ 20.Qe4 (20.g5 Nc3 21.dc3 Qc6–+) 20...Bc6 21.Qf5 (21.Qd3 Bh1 22.Qd6 Bd6–+) 21...Bh1 22.Bd3 (22.Qa5 Qh2 23.g5 Rc5–+) 22...g6 23.Qb5 (23.Qe5 Qe5 24.Be5 Bh4–+) 23...Rc5 24.Qb1 Bh4 25.Ke2 Bc6 26.f4 (26.Bd4 Rg5 27.Qb2 Rg4–+) 26...Re8 27.Be5 (27.Qf1 Rd8 28.Bd4 Bf6–+) 27...Qd7 28.Bf5 Bb5 29.Kd1 (29.Kf3 gf5 30.gf5 Qd2 31.Qg1 Kf8 32.Kg4–+) 29...gf5 30.gf5 Bd3 31.Qb3 (31.Qd3 Qd3 32.Bc3 Rc3 33.Rc1 Qf1) 31...Qc6 32.Qd3 (32.e4 Qe4 33.Qf7 Kf7 34.Rc1 Qe2) 32...Qf3 33.Qe2 Qh1 0–1. Ashley1 – pierre (2170), internet, 2008.

10.h4 Nc3 A) 11.Qc3 Re8 (11...Bf6 12.d4 ed4 13.Nd4 a5+=; 11...Rd8 12.d4 Bf6 13.Qc2 ed4+=) 12.Ne5 Bf6 13.d4 Ne5+=; B) 11.dc3 a5 (11...Rd8 12.Rd1 Qf6 13.Bd3 a5=; 11...Qf6 12.Bd3 Rd8 13.Ng5 Nf8=; 11...e4 12.Rd1 Qg6 13.h5 Qg4+=; 11...c5 12.Rd1 Qc6 13.Bc4 Qg6=) 12.Rd1 Qg6 13.c4 ab4+=.

9.Qc2 0–0

10.Bd3 g6 11.Ne4 Qc7 12.Bc4+= N5b6 13.Bb3 h6 (13...a5 14.ba5 Ra5 15.0–0+=) 14.h4 Kg7 15.h5 f5? (better is 15...a5!? 16.Nc5 Bc5 17.bc5 Nd5 18.Bd5 cd5 19.Ne5 Ne5+–) 16.Ng3+– Qd6 17.hg6 Qg6 18.Ne5 Ne5 19.Be5 Kh7 20.Bf4 Bg5 21.Bg5 Qg5 22.0–0–0 (22.d4 Qg6+–) 22...a5 23.Rh5 Qf6 24.d4 ab4 25.ab4 Ra1 26.Kb2 (26.Kd2!? Rd1 27.Kd1 Kh8+–) 26...Rd1+/– 27.Qd1 Kg7? (better is 27...Qd6 28.Qd3 Kg6+/–) 28.Rf5!!+– Qe7 (28...Bf5 29.Nh5 Double attack) 29.Rf8 (29.Qf3 Rf5 30.Qf5 Bf5 31.Nf5 Kf6 32.Ne7 Ke7+–) 29...Qf8 30.Qd2 Qe7 (30...Kh8 31.Kc1+–) 31.Nh5 Kg6 32.Nf4 Kg7 33.Qd3 Qd6 34.Qe4 Nd7 (34...Bd7+–) 35.Qe8 Nf6 (35...Qf8 36.Ne6 Kf6 37.Nf8 Nf8 38.Qf8 Kg6 39.Bf7 Kf5 40.Qh6 Ke4 41.Kc2 Be6 42.Qe6) 36.Qf7 1–0. Dergatschova_Daus,Anna – Paehtz,Elisabeth, BL, 1997.

10.Bd3 g6 11.Ne4 Qe6 12.0–0 h6 (12...Rd8 13.Be2+=) 13.Bc4+= b5 14.Ba2 a5 15.Nc5 (15.ba5 Ra5 16.Nc3 f5+=) 15...Bc5 16.bc5 Qe8 (16...f5 17.d3 e4 18.de4 Qe4 19.Qe4 fe4 20.Nd4+–) 17.Qe4 (17.Bd5 cd5 18.Rac1 e4+/–) 17...Nc5 18.Qc2 (18.Qe5 Qe5 19.Ne5 Bb7+/–) 18...Na4 19.Be5 (19.Be5 Bf5 20.e4+=). Woelfelschneider,Peter (2305) – Sternik,Ryszard (1935), TT–19 ETC, 2006.

10.Bd3 h6 11.Nd5 cd5 12.Bh7 Kh8 13.Bf5 =.

10.Bd3 Kh8 11.Ne4 (11.Bh7 g6 12.Ne4 Qc7=) 11...Qb8 (11...Qe6 12.Bc4=) 12.Nc5+= Bf6 13.h4 (13.0–0 Nc5 14.bc5 h6+=) 13...Nc5 14.bc5 h6 15.Bf5 (15.Be4 Be6=) 15...Bf5 16.Qf5 Re8 17.Ng5 (17.e4 g6 18.Qg4=) 17...g6 (17...Kg8 18.Qh7 Kf8 19.e4–+) 18.Qc2 (18.Nf7 Kg7 19.Qd7–+) 18...Qc7 (18...Kg7 19.e4 Nf4 20.g3=) 19.Ne4 Bg7 (19...Rad8 20.h5 g5 21.0–0+=) 20.h5 (20.Nd6 Red8=) 20...g5 21.Rb1 Rad8 22.Nd6 ½–½. Nock,J – Feist,M, corr, 1995.

10.d4 Nc3 11.Bc3 ed4 +=.

10.d4 ed4 11.Nd5 Qd5 12.Bc4 Qh5 13.Nd4 Ne5 14.Be2 Qg5 15.Qe4 Re8 16.Rd1 (16.0–0–0 Ng6+=) 16...Bf6 (16...a5 17.f4 Qg6 18.Qg6 Ng6= (worse is 18...hg6 19.fe5 ab4 20.a4+/–)) 17.h4+= Qg6 18.Qg6 Ng6 19.h5 Ne5 20.h6 g6 21.Rd2 a5 22.b5 Be7 23.bc6 bc6 24.f4 Nd7 25.Bf3 Bc5 26.Kf2 (26.Bc6?! Re3 27.Kf2 Rb3=; worse is 26.Nc6 Be3 27.Ne7 Re7 28.Ba8 Bd2 29.Kd2 Nb6=) 26...Bb7 27.Rb1 Rab8 28.Nc2 Nb6 29.Be5 Rbc8 30.Bd4 Bd4 31.Rd4 c5 32.Bb7 (worse is 32.Rb6 cd4 33.Nd4 Bf3 34.gf3 Rc3–/+) 32...cd4 33.Bc8 Nc8 (33...de3 34.Ne3 Nc8 35.Nd5+–) 34.ed4+– Nd6 35.Rb6 Ne4 36.Kg1 Nc3 37.Ra6 a4 38.Nb4 f6 (38...Kf8 39.Kf2+–) 39.Rf6 Ne2 40.Kf2 Nd4 41.Ra6 Re2 42.Kf1 Re4 43.Ra8 (43.Nd5!? Kf7+–) 43...Kf7+/– 44.Ra7 Kf8 (44...Ke6 45.Ra6 (45.Ra4?! Rf4 46.Ke1 Rh4+=) 45...Kf7 46.g3+/–) 45.g3 Nf5 46.Rh7 (46.Ra4?! Ng3 47.Kg2 Nf5+=) 46...Kg8 47.Ra7 Ng3 48.Kf2 Nf5 49.Nd5 Re6 50.Kf3 Kh8 51.Ra4 Kh7 52.Ra7 Kh6 53.a4 Nd4 54.Kg4 Re1 55.a5 Rg1 56.Kh3 g5 57.Ra6 Kg7 58.fg5 Rg5 59.Nf4 Kh7 60.Rd6 (60.Ra7 Kh6+–) 60...Ra5 (60...Nf3 61.Rd3 Ng1 62.Kh2 Ra5 63.Kg1+/–) 61.Rd4 Kg7 62.Rd6 Kf7 63.Nd5 Ra4 64.Kg3 Rd4 65.Kf3 Rd3 66.Ke4 Rd1 67.Ra6 Re1 68.Kf5 Rf1 69.Nf4 Rf2 (69...Ke7 70.Ke4+/–) 70.Ra7+– Ke8 71.Ke6 Rd2 72.Rh7 Kd8 73.Nd5 Re2 74.Kd6 Re1 75.Rd7 Ke8 ½–½. Luzuriaga,Norberto Horacio – Janzen, Tiger SC, 2001.

9.Bc4 Nc3=+

10.dc3 Qg6 11.Bf1 0–0 +=.

10.Bc3 e4+= 11.Nd4 Ne5 12.Be2 Be6 (better is 12...Qg6!? 13.g3 0–0–/+) 13.Qc2 f5 14.f4 (14.Ne6 Qe6 15.0–0 Rd8=) 14...ef3 15.gf3 Bh4 16.Kd1 0–0 (16...Bf6 17.b5=) 17.Ne6+= Qe6 18.Qa2 Qa2 19.Ra2 Bf6 20.Rc2 (20.d4 Nf7+=) 20...Rad8 21.b5 cb5 22.Bb5 a6 23.Ba4 b5 24.Bb3 Kh8 25.Ke2 f4 26.Ba5 (26.e4 Nc6+=) 26...Rc8 (26...Rd3 27.Rb1 Re8 28.Rc7+=) 27.Rhc1 Rc2 28.Rc2 fe3 (28...Be7 29.Bc7 Ng6 30.a4+=) 29.de3 Be7 30.f4 Ng4 31.Be6 (31.h3 Nf6 32.Bb4 Bb4 33.ab4 g5 34.fg5 Ne4+/–) 31...Nh2 32.Rc7 (32.Rc7 Bf6 33.Ra7+/–) 1–0. Ringsborg,Allan (2265) – Willumsen,Niels Henrik (1800), corr DEN–ch Denmark, 2001.

10.Bc3 e4 11.Nd4 Ne5 12.Bf1 =+.

10.Bc3 e4+= 11.Bg7 Rg8 12.Bc3 Rg2 –+.

10.Bc3 Bf6 11.Qc2 (11.d4 ed4 12.Bd4 Nb6=) 11...Nb6= 12.Ba2 0–0 13.h4 g6 (13...Re8 14.Ng5 Bg5 15.hg5=) 14.Ng5 (14.h5 Be6+=) 14...Bf5= 15.Ne4 Be4 16.Qe4 Nd5 17.Bb2 (17.h5 Kg7+=) 17...Bg7 18.h5 f5 (18...g5 19.Qf5 h6 20.0–0=) 19.Qc2 (19.Qh4 Qf6+=) 19...e4 (19...g5 20.d3 Kh8 21.Qc5=) 20.hg6 hg6 (20...Qg6 21.Rh2=) 21.g4 (21.Rd1!?+=) 21...Bb2 22.Qb2 Qf6 23.Qf6 (23.d4 ed3 24.Qf6 Rf6+=) 23...Rf6 24.gf5 gf5 25.Ke2 (25.d4 Rd8=) 25...Kg7 26.Rag1 Rg6 27.Bd5 cd5 28.Rc1 Rf8 (28...Kf6 29.Rh7 Rb8 30.Rcc7+/–) 29.Rc5 (29.Rc7 Rf7 30.Rh7 Kh7 31.Rf7 Kh6 32.Rf5 Rd6+–) 29...d4 (29...Ra6 30.Rd5 Ra3 31.f3+/–) 30.ed4+/– Rf7 (30...Ra6 31.Rh3+/–) 31.Rh5 (31.d3 Rg4+/–) 31...Rgf6 (31...Ra6 32.Rhf5 Ra3 33.Rf7 Kf7 34.Ra5+–) 32.Ke3 (32.d3 Kg6 33.Rh4 Kg5+–) 32...Kg6 33.Rh1 Ra6 34.Ra5 (34.Rg1 Kh7+/–) 34...Rff6 (34...Ra5!? 35.ba5 Rc7=) 35.Rg1 Kf7 36.Kf4 (36.d3 Ra5 37.ba5 ed3+/–) 36...Ra5+= 37.ba5 Ra6? (better is 37...Ke6+=) 38.Rg5+– (38.Kf5?! Ra5 39.Ke4 Ra3+=) 38...Rc6 (38...Re6 39.Rf5 Kg6 40.Rg5 Kf6 41.Re5+–) 39.Rf5 Kg6 1–0. Dzieniszewski,Andrzej (2325) – Masternak,Grzegorz (2360), Poland–chT Bydgoszcz, 1990.

7.d4 e4

8.c5 Qe7 9.Nfd2 b6 =.

8.Nfd2 Qe6 9.Nc3 Bd6 10.Qb3 0–0 11.b5 Re8 12.Be2 Nf8 13.a4 Qf5 14.Ba3 Bc7 15.g4 (15.bc6!? bc6 16.cd5=) 15...Ng4+= 16.Bg4 Qg4 17.cd5 cd5 18.Qd5 The passed pawn on d4 will quickly become a dangerous weapon 18...Ba5 19.Qb3 (19.Rc1!?+=) 19...Be6 20.Qb2 Bc3 (20...Qg2 21.Rf1–/+) 21.Qc3–/+ Rac8 22.Qb2 (22.Qa5!? Rc2 23.h3–/+) 22...Qg2–+ 23.Rf1 Ng6 (23...Bh3!? 24.Bf8 Rf8–+) 24.Bd6–/+ Nh4 Black is in command 25.Bg3 Qh3 26.Bh4 Qh4 27.Rg1 (27.Rh1 Rc7 28.Rc1 Rc1 29.Qc1 Rc8–/+) 27...Qh2 28.Rg3 Qh1 29.Ke2 Qh5 30.Kf1 Bd5 31.Kg2 (31.Rg1 a5–+) 31...f5 32.Rh1 (32.Kf1 Rc7 33.b6 ab6–+) 32...Qf7 (better is 32...Qe2!? 33.Rgh3–+) 33.Rh4 Re6 34.Qb1 Rf6 (34...Rg6 35.Rg6 Qg6 36.Kf1–+) 35.Qh1–/+ g6 36.Rgh3 h5 37.Rg3 Kg7?? (37...Kf8 38.Qd1–/+) 38.Rg5?? (better is 38.Rh5! Qg8 39.Rh4=) 38...Kh6 39.Qh2 f4 (39...a6!?–/+) 40.Rf4+= Rf8 (40...Rf4 41.Qf4 Qf4 42.ef4+=) 41.Re5 (41.Rgg4 g5 42.Rf6 Qf6=) 41...Rf4–/+ 42.ef4 (better is 42.Qf4 Qf4 43.ef4 e3 44.Nf3 Bf3 45.Kf3 ef2 46.Kf2 Rf4 47.Ke3–/+) 42...e3–+ 43.Nf3 Bf3 44.Kf3 ef2 45.Kf2 Qf4 (better is 45...Qa2!? 46.Kg3 Qb3 47.Kg2 Qb2 48.Kh3 Qd4–+) 46.Qf4–/+ Rf4 47.Ke3 Rf7 48.d5 h4 49.d6 h3 50.Rd5 h2 Do you see the mate threat? 51.Rd1 Kg5 52.Rh1 Rh7 53.d7 Threatening mate: d8Q 53...Re7 54.Kf3 Rd7 55.Rh2 Rc7 56.Rh8 b6 57.Ra8 Rd7 58.Kg3 Kf5 59.Rf8 Ke5 60.Re8 Kd6 61.Rg8 (better is 61.Rc8!?–/+) 61...Kc5–+ 62.Rg6 Kb4 63.Rg4 Kb3 64.Kf3 Rc7 65.Ke3 Rc4 (65...Rc4 66.Rg5 Ra4–+) 0–1. Franke – Grottke,Hans Joachim, corr DDR, 1984.

8.Nfd2 Qe6 9.Nc3 Bd6 10.Be2 0–0 11.Qb3 Bb8 12.a4 White prepares b5 12...Nb6 13.c5 Nbd7 14.b5 Qf5 15.Qd1 Ne8 16.a5 (16.bc6 bc6 17.0–0 Bc7=) 16...Qg6 17.g3 f5 18.b6 Qh6 19.Qb3 a6 20.0–0–0 Ndf6 21.Rdf1 Qh3 22.Nd1 g6 (22...Be6 23.f3=) 23.Nb1 f4 24.Rfg1 (24.f3 ef3 25.Bf3 fg3 26.hg3 Qe6+=) 24...fe3 (24...f3 25.Bf1 Qh6 26.h3=) 25.fe3= Ng4 26.Bf1 Qh6 27.Nd2 Nf2 28.Nf2 Rf2 29.Rg2 Rf7 30.h4 Bg4 (30...Nf6 31.h5+=) 31.Ne4= Re7 32.Ng5 Bf3 33.Rhg1 (33.Nf3 Re3 Theme: Double Attack) 33...Bg2= Black launches an attack 34.Bg2 (worse is 34.Rg2 Qf8 35.Be2 Nf6–/+) 34...Nf6 35.Rf1 Kg7 (better is 35...Bg3!? 36.Rf6 Qh4 37.Bd5 Kg7 (worse is 37...cd5 38.Qd5 Kh8 39.Rf7 Rf7 40.Nf7 Kg7 41.Nd6+/–) 38.Rc6 Qg5=) 36.e4!+/– Ne4 (36...Re4 37.Rf6) 37.Be4 Re4 38.Kb1?? (better is 38.Rf7 Kg8 39.Qf3 (39.Rh7?! Qf8 40.Rf7 Qe8+=) 39...Bg3 40.Qg3 Qh4 41.Qh4 Rh4 42.Rb7 Rh1 43.Kc2+–) 38...Re7= 39.Qf3 Threatening mate: Qf8 39...Kg8 40.Qg4 Threatening mate... how? 40...Bg3 41.Qg3 Qh5 42.Qf4 Rae8 43.Rf3 h6 (better is 43...Qh6+/–) 44.Nf7?? (better is 44.Nh3+/–) 44...g5+= 45.Nh6 (45.Qg5 hg5) 45...Qh6 46.hg5 Qg6 47.Ka2 Rf7 48.Qg3? (48.Qf7 Qf7 49.Rf7 Kf7 50.Kb3 Re3 51.Ka4–+) 48...Rf3–/+ 49.Qf3 Qc2 (49...Qg5?! 50.Qf2+=) 50.Qg3 Qa4 51.Kb1 Qa5 52.Bc3 (52.Qd3 Re4–+) 52...Qb5 53.Kc1 Qe2 54.Bd2 Rf8 55.Be1?? (55.Qe3 Qe3 56.Be3 a5–+) 55...Qf3 (better is 55...Rf1 56.Qb8 Kg7 57.Qb7 Rf7 58.Qf7 Kf7–+) 56.Qd6? (56.Qf3 Rf3 57.Kd2–+) 56...Qf4 (56...Qf4 57.Bd2 Qd6 58.cd6 Kf7–+; better is 56...Qe3 57.Kd1 Qd4 58.Kc1 Qe3 59.Kd1–+) 0–1. Sviridov,Valentin (2200) – Drvota,Antonin (2370), Karvina 5th, 1982.

8.Ne5 Qe6 9.cd5 Qd5 10.Bc4 Ne5 11.Bd5 (11.de5?! Qc4 12.ef6 g6=) 11...Nd3 12.Kf1 cd5 13.Qb3 +/–.

8.Ne5 Qe6 9.cd5 Nd5 10.Nc3 f5 (10...Ne5 11.Nd5 Nd3 12.Bd3 Qd5 13.Bb1=) 11.Nd5 cd5 12.Bb5 (12.Rc1 Ne5 13.de5 a5 14.ba5 Ra5+=) 12...a6 13.Bd7 Bd7 14.Rc1 Bb5 15.Rc7 Qb6 16.Qc2 Be7 (16...Bc6!? 17.Rf7 a5=) 17.Rc8+= Rc8 18.Qc8 Bd8 19.Qf5 Qf6 20.Qh5 g6 21.Qh3 0–0 22.f4 Qe7 (22...ef3 A) worse is 23.Nf3 Qc6 24.a4 Qc2 (24...Ba4?! 25.0–0+=) 25.ab5 Qb1 26.Kd2 Qh1–/+; B) 23.gf3 Be7 24.Qg4+=) 23.Qg4+/– Qh4 24.Qh4 Bh4 25.Kd2 Rc8 26.Ra1 Bf6 27.g4 g5 28.f5 Ba4 29.Rc1 Rc1 30.Kc1 (30.Bc1 Kf8+/–) 30...Be8 (30...Bb5 31.Kd2+=) 31.Bc3 b5 (31...Bb5 32.Kd2+/–) 32.Be1 Kg7 33.h3 Be7 34.Bg3 ½–½. Rosner,Dirk – Wolf,Herbert, corr BdF, 1999.

8.Ne5 Qe6 9.cd5 Nd5 10.Nd2 f5 11.b5 Ne5 12.de5 Bd7 13.Qb3 Be7 14.Bc4 0–0 15.Rd1 Kh8 16.0–0 Qf7 17.bc6 bc6 (worse is 17...Bc6 18.e6 Qe6 19.Nb1+–) 18.Bd5 cd5 19.Rc1 Rab8 20.Qa2 Bb5 21.Rfd1 Qh5 22.Bd4 (22.Qd5? Be2 23.Nc4 Rfd8–+) 22...Bd3 23.Re1 a6 24.Rc7 Bd8 25.Rd7 Ba5 26.e6 Rg8 27.Qa1 (better is 27.Rd5 Bc7 28.h3+=) 27...Qg6–/+ 28.Rc1?? (better is 28.Bc3 Bc3 29.Qc3 Qe6 30.Rc7–/+) 28...Bd2–+ 29.Rg7 (29.Rd1 Bc2 30.Rf1–+) 29...Rg7 30.Rc7 Qg2 0–1. Melderis,Uldis (2105) – Bartnicki,Pawel (2060), Gorzow Wielkopolski op Poland, 2008.

8.Ne5 Be7 =.

8.Nfd2 Be7

9.Nc3 0–0 10.cd5 cd5 11.Rc1 =+.

9.Nc3 0–0 10.Be2 =.

9.Nc3 a6 10.Qc2 Nf8 11.f3 (11.Rc1 Ng6=) 11...ef3 12.gf3 (12.Nf3 Ng6 13.Bd3 dc4 14.Bc4 Be6=) 12...Qe6 (12...Ng6 13.e4+=) 13.Qd3 (13.e4 Ng6 14.0–0–0=) 13...Qf5 (better is 13...Ng6!? 14.Na4 b5+=) 14.0–0–0 (14.e4 de4 15.fe4 Qh5=) 14...dc4 (14...Qd7 15.e4+=) 15.Qf5+= (15.Qc4?! Ng6=) 15...Bf5 16.Nc4 Rd8 17.Na5 (17.e4 Be6+/–) 17...Bc8 (17...Rd7 18.Rg1+=) 18.e4 Ng6 19.Bc4 White prepares d5 (19.Na4 Nd7+=) 19...Nf4 (19...0–0 20.Kb1+=) 20.Kb1 0–0 21.Bc1 N6h5 22.Be3 Bd6 (22...Rfe8 23.Rhg1+=) 23.d5+/– Bc7 (23...b5!? 24.Bb6 Rde8 25.dc6 Be5 26.Nb5 ab5 27.Bb5 Bh3+–) 24.dc6+– Ba5 25.cb7 (better is 25.ba5 bc6 26.Kc2+–) 25...Bb7= 26.ba5 Rc8 27.Rd4 Ne6 28.Be6 (28.Rhd1 Nd4 29.Rd4 Rc5 30.Bf7 Kf7 31.Rd7 Ke6 32.Bc5 Be4 33.Kc1 Kd7 34.Bf8 Bf3=) 28...fe6+= 29.Kb2 Rf3 30.Re1 Nf6 31.Rb4 (31.e5 Nd5 32.Nd5 Bd5+=) 31...Ng4+= 32.Bd4 (32.Rb7? Ne3 (32...Re3?! 33.Re3 Ne3 34.Ra7+=) 33.Rg1 Nc4 34.Ka1 g6–+ (34...Rc3?! 35.Rgg7 Kf8 36.Rgf7 Ke8 37.Rbe7 Kd8 38.Rd7 Ke8 39.Rde7 Kd8 40.Rd7 Ke8 41.Rde7=)) 32...Ba8 33.Rg1 (33.Rc1 Rh3+=) 33...h5 (33...e5!? 34.Rg4 ed4+=) 34.Rg3= Rf7 35.h3 Nf2 36.Be5 Attacking the backward pawn on g7 (36.Bf2!? Rf2 37.Kb3=) 36...h4+= 37.Re3 Rd7 (37...g5 38.Rb6+=) 38.Rd4 Rd4 39.Bd4 Rc4 40.Bb6 Ne4 41.Ne2? (41.Ne4!? Be4 42.Rc3 Rc3 43.Kc3=) 41...Bd5 (better is 41...Kf7–/+) 42.Nd4?? (better is 42.Nc3+=) 42...Nf2–+ 43.Kb1 Nd1 (43...Be4!? 44.Ka2 e5 45.Nb3–+) 44.Re1 Nc3 45.Ka1 Na4 (better is 45...Kf7!? 46.Nb3 Na4–+) 46.Ne6+= Rc2 (46...Rc3 47.Ng5 Kf8 48.Bf2+=) 47.Ng5 Ra2 48.Kb1 Nc3 49.Kc1 Ne2 50.Kb1 Rd2 51.Bc5 Ba2 52.Ka1 Rc2 (52...Bc4 53.Bb4 Rd5 54.Ne4+=) 53.Bb4 g6 (53...Bb3 54.Kb1=) 54.Ne4 (54.Rd1 Kg7=) 54...Bc4 (54...Be6 55.Nd2 Nf4 56.Nf3+=) 55.Nd2 (55.Rd1 Be6 56.Rd8 Kg7 57.Bf8 Kf7=) 55...Bd3 56.Nb3? (better is 56.Nf3!?+=) 56...Bf5–+ 57.Nc5? (better is 57.Bd2 Nc3 58.Bc3 Rc3 59.Kb2 Rc2 60.Ka1–+) 57...Nd4 (57...Nc1 58.Rc1 Rc1 59.Kb2 Rb1 60.Ka2–+) 58.Re3?? (better is 58.Rd1 Rc4 59.Kb2+=) 58...Rh2–+ 59.Rc3 (59.Re8 Kf7 60.Rh8 Nc2 61.Kb2 Nb4 62.Kb3–+) 59...Nc2 60.Rc2 Rc2 61.Na6 Bh3 62.Be7 Rc4 (better is 62...Bc8!? 63.Nc7 Rc7 64.Bh4–+) 63.Nb4 Kf7 64.Bd6 Bc8 (64...Ke6 65.Bh2–+) 65.Kb2 (65.Bb8 g5–+) 65...g5 66.a6 (66.Kb3 Re4 67.Kc3 Re3 68.Kd4 Ra3 69.Nd5 Ra5 70.Nc3–+) 66...Ba6! 67.Kb3 (67.Na6 Rc6 Double attack (67...Rc6 Decoy)) 67...Rc8 68.Na6 (68.Kb2 Bb7–+) 68...Rc6 (68...Rc6 69.Be5 Ra6–+) 0–1. Teichmann,Erik O M C (2385) – Smirnov,Vladimir (2375), Australian Masters, 2010.

9.Nc3 a6 10.Be2 b5 11.cd5 cd5 12.0–0 =.

9.Nc3 a6 10.Be2 Nf8 11.Rc1 Ng6 (11...Ne6 12.cd5 cd5 13.0–0=) 12.0–0 (12.cd5 cd5 13.0–0 Bf5+=) 12...h5 (12...0–0 13.cd5 cd5 14.f3 ef3 15.Bf3=) 13.cd5+= Ng4 14.g3 cd5 15.b5 Nh2? (15...0–0=) 16.Nce4 de4 17.Nc4 (17.Kh2 h4 18.Ne4 hg3 19.Kg1 gf2 20.Rf2 Qd5–/+) 17...Qe6 18.Kh2 Qh3 (18...h4 19.g4 ab5 20.d5–+) 19.Kg1 h4 (19...ab5 20.Nb6 Rb8 21.Rc8 Rc8 22.Bb5 Kd8 23.Bd7 (23.Nc8?! Qc8 24.Qb3 Qf5+=) 23...Qd7 24.Nd7 Kd7 25.Qb3+–) 20.g4? (20.Nb6 hg3 21.Rc8 Rc8 22.Nc8 Qh2) 20...b6?? (20...ab5 21.Nb6 Bd6 22.Bb5 (22.Rc8?? Rc8 23.Bb5 Kd8–+) 22...Kd8 23.f4 Qg3 24.Kh1 Bg4 25.Qd2 Bf3 26.Rf3 Qf3 27.Qg2 Qg2 28.Kg2–+) 21.Ne5?? (better is 21.Nb6 Bb7 22.Na8+–) 21...Ne5–/+ 22.de5 0–0 (22...ab5 23.Qd5 Rb8=) 23.Rc8? (23.Rc7 Rd8 24.Qc2=+) 23...Rac8 (23...Rfc8 24.ba6 Ra7 25.Qd4–/+) 24.Re1 (24.Qa4 ab5 25.Qe4 Ra8–+) 24...Rfd8 25.Bd4 (25.Qa4 Rd2 26.Qe4 Rb2=) 25...f5?? (25...ab5 26.Bf1 Qf3=+) 26.ef6 Bd6 27.f4 (27.Qb3 Kh7 28.f4 Bf4 29.Bd3 Bh2 30.Kh1 Bg3 31.Kg1 Qh2 32.Kf1 Qf2) 27...ef3–+ 28.Qb3 Kf8 (29.Bf3 Qg3 30.Kf1 Qf3 31.Kg1 Bh2 32.Kh2 Qf2 33.Kh1 Qe1 34.Kg2 Qg3 35.Kf1 Rd4 36.ed4 Qb3 37.fg7 Kg7 38.Ke2 Rc2 39.Kf1 Qb1#) 0–1. Van Rooijen,T – Raymaekers,C, corr NLD BV/91, 1991.

9.Nc3 Nf8 10.Qc2 Ne6 11.Be2 h5 (11...0–0 12.0–0=) 12.h3 h4 13.b5 Nh5 (13...0–0 14.0–0+=) 14.a4 Bg5 (14...Qd8!?+/–) 15.Ba3 Qc7 16.Bh5 (16.bc6 bc6 17.cd5 cd5+–) 16...Rh5 17.Qd1 Qa5? (17...g6 18.cd5 cd5 19.Nd5+–) 18.Rc1 (better is 18.Nce4!? g6 19.Nd6 Kd7 20.cd5 cd5+–) 18...g6 19.cd5 cd5 20.Nd5 f5 21.0–0 Bd7 (21...Kf7 22.Qb3 Kg7+–) 22.Nc4 (22.Nc4 b6 23.Na5 ba5 24.Qb3+–) 1–0. Nikitin,Aleksander I (2010) – Gajdzica,Maciej (2100), III Mielenska Perla Baltyku op–B 3rd Poland, 2007.

9.cd5 Qd5 10.Nc3 Qe6 +=.

7.cd5 cd5

8.Qa4 d4 9.ed4+/– ed4 10.Bd4 Be7 11.Be2 (worse is 11.Ba7 Bd8 12.Qc2 b6–/+) 11...0–0 12.Nc3 (12.Ba7 Bd8 13.Bc5 Qc5 (13...Ra4? 14.Bd6 Re8 15.Nc3+–) 14.bc5 Ra4–/+) 12...b6 13.Nb5 Qf4 14.Be3 (worse is 14.Na7 Bb7–/+) 14...Qb8 15.0–0 Bb7 16.Rfe1 a5 17.ba5 Ra5 18.Qh4 (18.Qf4 Nd5 19.Qf5 Ne3 20.de3 Nf6+=) 18...Bf3= 19.gf3 Qb7 20.d4 Rfa8 21.Qg3 (21.Bd2!? Nd5 22.Qg3+/–) 21...Bb4= 22.Rec1 Ba3 23.Na3 Ra3 24.Ra3 Ra3 25.Bh6 Nh5 (25...g6 26.Bb5 Qa8 27.Qc7+/–) 26.Qg5+/– Ndf6 27.Bg7! Ra5 (27...Ng7 28.Qf6) 28.Qh6 (worse is 28.Bf6 Rg5 29.Bg5 Kg7+=) 28...Ng7 29.Qf6 Ne6 30.Bd3 Qa8 (better is 30...Qd7!?+/–) 31.Be4+– Qb8 32.d5 Nf8?? (32...Ng7+–) 33.Rc4 Ra8 (33...Ng6 34.Bg6 fg6 35.Qe6 Kg7 36.Qd7 Kg8 37.Rc8 Qc8 38.Qc8 Kg7+–) 34.d6 (34.Bh7 Nh7 35.Rg4 Ng5 36.Rg5 Kf8 37.d6 Ra1 38.Kg2 Rg1 39.Kg1 Qd6 40.Qd6 Ke8 41.Rg8) 34...Ng6 (34...Ra1 35.Kg2 Ng6 36.Bg6 fg6 37.Rc7 Qc7 38.dc7+–) 35.Bg6 (35.Ba8 Qa8 36.d7 Ne7 37.Qe7 Qa1 38.Kg2 Qg7 39.Rg4 Qg4 40.fg4 h5 41.d8Q Kh7 42.Qf7 Kh6 43.g5) 35...fg6 36.d7 Qd8 37.Rc8! Qc8 (37...Rc8 38.Qd8 Double attack (38.Qd8 Decoy)) 38.dc8Q Rc8 39.Qe6 Kg7 40.Qd7 Kf8 41.Qc8 Kg7 42.Qb7 Kh6 43.h4 g5 (43...b5 44.Qe7 b4 45.Qf8 Kh5 46.Qf4 b3 47.Qg5) 44.Qf7 gh4 45.f4 b5 46.Qf6 Kh5 47.Qg5 1–0. bambinik (2450) – PiT2BosS (2500), internet, 2003.

8.Qa4 Kd8 9.Nc3 a6 (9...e4 10.Nb5 Qe7 11.Nfd4+=) 10.Be2 (10.Rc1 Qe6+=) 10...g6 (10...e4 11.Ng5 Qe7 12.d3+=) 11.0–0 (11.Rc1 Qe6+/–) 11...Bg7 (11...e4 12.Nd4+=) 12.Rac1+/– Re8? (better is 12...e4 13.Ng5 Qf8+/–) 13.Nb5!+– Qb6 (13...ab5 14.Qa8) 14.Nc7 Qc7 15.Rc7 Kc7 16.b5 (16.Rc1 Kd8+–) 16...a5 (16...Kd8 17.ba6 Re7 18.Rc1+–) 17.Ne5!! Ne5 (17...Re5 18.Qf4) 18.Be5 Re5 19.Qf4 (19...Kd6 20.d4+–) 1–0. pcmvr (2715) – diggitus (2375), net–chess.com, 2006.

8.Qa4 Kd8 9.Nc3 Be7 (9...e4 10.Nd4=) 10.Rc1+= Nb6? (better is 10...a5+=) 11.Qa5+– (With the decisive threat Nb5) 11...Nfd7 12.Nb5 Qb8 13.Nc7 Bd6 14.Na8 Qa8 15.Nh4 (15.e4 d4+–) 15...Bc7 (15...Qb8 16.Nf5 Bf8 17.f4+–) 16.Nf5 (16...Re8 17.Ng7+–) 1–0. pcmvr (2760) – diggitus (2300), net–chess.com, 2006.

8.Qa4 Ke7 9.Nc3 Nb6 10.Qa5 Nbd7 (10...Bg4 11.Nb5 Qe6 12.Nc7+–) 11.Rc1 b6 12.Qa4 Qb8 (12...Kd8 13.d4 e4 14.Nb5+–) 13.d4 e4 14.Ne5 Ne5 15.de5 Qe5 16.Qc6 Qb8 17.Nd5 Nd5 18.Qd5 Bb7 19.Qf5 f6 20.Bb5 (20…Qd6 21.Rd1+–) 1–0. Trokenheim,Marek – Larouche, e–mail CTON, 1996.

8.Qa4 Ke7 9.Nc3 (9...Kd8 10.Rc1+/–) 1–0. pcmvr (2560) – pattpatzer, net–chess.com, 2006.

8.Qa4 Be7 9.Be5+/– Qc6 10.Qc6 bc6 11.Bc7+/– a5 12.ba5 Bd8 13.Bd8 Kd8 14.d4 Ra5 15.Nc3 Kc7.

8.Qa4 Be7 9.Be5+/– Qe6 10.Nc3 0–0 11.Bd4 Nb6 12.Qb3 Ne4 13.Bd3 f5 14.Bb6 Nc3 15.Bc7 Ne4.

8.Qa4 Be7 9.Be5+/– Qe6 10.Bc7 A) 10...h6 11.Nd4 (11.Nc3 Ne4 12.Nd4 Nc3 13.dc3 Qe4 14.Bb5 Qg2 15.Rf1 a6) 11...Qg4 12.h3 Qg6 13.Nc3 (13.h4 0–0 14.Nc3 Re8 15.h5 Nh5) 13...0–0 14.Rc1 a5 (14...Bd8 15.Bg3 Bb6) 15.Qb5 (15.Nce2 b5) 15...ab4+– (15...Re8); B) 10...Qc6 11.Qc6 bc6 12.Nc3 Nf8 13.Bd3 Ne6 14.Be5 0–0 15.0–0 a5; C) 10...0–0 11.Nd4 Qg4 12.Be2 Qg2 13.Bf3 Qg6 14.Nc3 Bd8 15.Bf4 Bb6= (15...Nb6).

8.Qa4 Be7 9.Be5+/– Qe6 10.Bd4 g6 (10...0–0 11.Nc3 Ne4 12.Rc1 Nc3 13.Bc3 Nb6 14.Qb3 Bd7 15.Bd3 Nc4; 10...b6 11.Bd3 0–0 12.Nc3 Ne4 13.Nb5 Qc6 14.0–0 a6 15.Nc3 Qa4; 10...h6 11.Bd3 0–0 12.Nc3 Ne4 13.0–0 Ndf6 14.Qc2 Nc3 15.Bc3 Bd6) 11.Nc3 0–0 12.Nb5 Nb6 13.Qb3 Ne8 14.h4 a6 15.Nc3 Nf6.

8.Qa4 Be7 9.Be5+/– Qe6 10.Bf4 0–0 (10...Ne4 11.Nd4 Qg6 12.f3 Bh4 13.g3 Bf6 14.Bb5 Ng5 15.0–0 Nh3; 10...Qf5 11.Nd4 Qg6 12.Nc3 0–0 13.Rc1 Nb6 14.Qc2 Bd7 15.Qg6 hg6; 10...Nh5 11.Bc7 0–0 12.Nd4 Qg4 13.Nc3 Nhf6 14.Be2 Qg2 15.Bf3 Qh3) 11.Nd4 Qg4 12.Nc3 Nb6 13.Qc2 Bd7 14.h3 Qg6 15.Bd3 Qh5.

8.Qa4 Be7 9.Be5+/– Qe6 10.Bg3 0–0 (10...Ne4 11.Nd4 Qb6 12.Nc3 (12.Bb5 Bf6 13.Nc3 Nc3 14.dc3 a6 15.Be2 0–0) 12...Nc3 13.dc3 0–0 14.Bd3 (14.Qb3 Nf6 15.c4 dc4) 14...Bf6 15.Qd1 (15.Qc2 g6) 15...g6; 10...Qf5 11.Nd4 Qg6 12.Qb3 a5 13.Bd3 Qg4 (13...Qg5 14.h4 Qg4 15.Be2 Qg6) 14.h3 (14.Ra2 ab4 15.ab4 Ra2) 14...Qg5 15.h4 Qg4; 10...Qc6 11.Qc6 bc6 12.Nc3 Ne4 (12...Bb7 13.Nd4 Nh5 14.Nf5 Ng3 15.hg3 Bf8) 13.Ne4 de4 14.Nd4 Bb7 15.Rb1 (15.Nf5 g6) 15...0–0+– (15...g6)) 11.Nd4 Qb6 (11...Qg4 12.Nc3+/– (12.Be2 Qg6 13.Nc3 Nb6 14.Qb3 Be6 15.0–0 Ne4) 12...Nb6 (12...Qg6 13.Be2 Nb6 14.Qb3 Be6 15.h4 Bg4) 13.Qc2 Bd7 14.Bd3 Qh5 15.0–0 Rac8) 12.Nc3+– a6 (12...Bd6 13.Qb5 Rd8 (13...Bg3 14.hg3 a6 15.Qb6 Nb6) 14.Nd5 Nd5 15.Qd5 Nf6) 13.Be2 (13.Bd3 Nb8 14.Bh4 Be6 (14...Nc6 15.Nc6 Qc6) 15.Qc2 (15.0–0 Nc6) 15...Nc6+– (15...g6); 13.Rc1 Bd6 14.Qb3 Bg3 15.hg3 Re8) 13...Ne4? (better is 13...Nb8 14.b5 Nbd7+– (14...Be6 15.0–0 a5) 15.ba6 Nc5; 13...Bd6 14.f4 Qd8 15.Qb3 Nb6) 14.Nd5 Qd8 15.Bc7 Qe8 16.Qc2 Nef6 17.Ne7 Qe7 18.Nf5 Qe6 19.Bc4 Qe4 20.Qe4 Ne4 21.f3 Nef6 22.Ne7 Kh8 23.d4 Ne8 24.Bf4 Nb6 25.Bb3 Bd7 26.e4 Ba4 27.Ba4 Na4 28.d5 Nf6 29.Rc1 Nb2 (29...a5 30.b5+–) 30.Ke2 b5 31.e5 Nd7 (31...Nh5 32.Be3 g6 33.Rc7+–) 32.Rc7 Nb6 33.d6 N2c4 (33...a5 34.ba5 Ra5 35.Bc1+–) 34.Rd1 a5 35.d7 Nd7 (35...ab4 36.ab4 h6 37.h4 Ra2 38.Kf1+–) 36.Rdd7 Na3 (36...ab4 37.ab4 h6 38.Nf5+–) 37.ba5 Rfe8 (37...Ra5 38.Nf5 Nc4 39.Rf7 Ra2 40.Ke1+–) 38.Nf5 Rf8 (38...Nc4 39.Rf7 Ra5 40.Rg7 Ra2 41.Kd3 Nb2 42.Ke4 Ra4 43.Ke3 Nc4 44.Kd3 Ra3 45.Kd4 Rd8 46.Kc5 Rd5 47.Kd5 Rd3 48.Kc5 Rd5 49.Kd5 Nb6 50.Kc6 h5 51.Kb6 b4 52.Rc8) 39.Rf7 Rf7 40.Rf7 Nc4 41.e6 1–0. wiking – abh, internet, 2010.

8.Nc3 Be7 9.Nb5+/– Qb6 10.Ne5 0–0 11.Bd4 Qd8 12.Na7 Ra7? (better is 12...Ne5 13.Nc8 Rc8 14.Be5 Ne4+–) 13.Nd7 (13.Ba7?! Ne5 14.Bd4 Nc6 15.Bf6 Bf6=) 13...Nd7 14.Ba7 b6 15.Rc1 Bb7 16.Bb5 Ne5 17.d4 Nc4 18.Qa4 Qd6 19.0–0 Ra8 20.Bc4 dc4 21.Rfe1 (21.Rc4 Qd5 22.Rc8 Rc8–+) 21...Qg6 22.g3?? (better is 22.e4 Be4 23.f3+/–) 22...Qe4–+ 23.f3 (better is 23.Kf1 Qg2 24.Ke2 Bf3 25.Kd2 Qf2 26.Kc3–+) 23...Qf3 24.e4 Be4 25.Re4 Qe4 26.Rf1 (26.Rc4?? Qe1 27.Kg2 Qe2 28.Kg1 Bg5–+) 26...Bf6 27.Rf6 gf6 28.Qd7 (28.d5 c3 29.Qc6 Qe3 30.Kg2 Ra7 31.Qc8 Kg7 32.Qg4 Qg5–+) 28...Re8 (28...Re8 29.Qe8 Qe8 30.Bb6 Qe3 31.Kg2 Qa3–+) 0–1. Engelhardt,Erhard – Grottke,Hans Joachim, corr ICCF–Cup8 V066, 1990.

8.d3 Be7= 9.Nbd2 a5 10.Be2 0–0 11.0–0 ab4 12.ab4 Ra1 13.Qa1 Qb4 14.Bc3 Qa3 (14...Qg4 15.h3 Qh5 16.Qa5=) 15.Qa3 Ba3 16.Ne5 Ne5 17.Be5 ½–½. Karaokcu,Erkin (2150) – Baglan,Esat (2145), Turkish Cup, 2015.

8.Qa4 e4

9.Nd4 a5 10.Nc3 =.

9.Nd4 a5 10.d3 =.

9.Nd4 Qb6 10.Nc3 =.

9.Nd4 Qe5 10.Qc2 Qe7 (10...Bd6 11.Nb5 Qe7 12.Na7+=) 11.Nb5+/– Rb8 12.d3 Ne5 13.de4 de4 14.Nd2 Bf5 15.Qa4 Nfd7 16.Rc1 f6 (16...a6!? 17.Nc7 Kd8+–) 17.Be5+– fe5 18.Nc4 Qf6 19.Rd1 Rd8 (19...a6!? 20.Nc7 Kd8+–) 20.Ncd6 Bd6 21.Nd6 Ke7 22.Qa7 (worse is 22.Nb7 Nb6 23.Qc2 Rd1 24.Qd1 Rc8+–; 22.Nf5?! Qf5 23.Be2 Rhf8+/–) 22...Bg4 23.Be2 (23.Ne4?! Qc6 24.f3 Ra8=) 23...Be2 24.Ke2 Rhf8 25.Rhf1 (25.Ne4?! Qc6 26.f3 Ra8 27.Rd7 Kd7 28.Rd1 Ke7 29.Qc5 Qc5 30.Nc5 b6+=) 25...b6 26.Qb7 (worse is 26.Ne4 Qc6 27.Nd6 Rf6+/–) 26...Qe6 27.Ke1 Qb3 28.Qe4 (28.Ne4?! Qa3 29.Rb1 Qd3+=) 28...Rf6 (28...Qa3 29.Qh7 Qb4 30.Rd2+/–) 29.Rd3 Qa2 30.Qh4 Qa1 (30...h6+–) 31.Ke2 Qb2 32.Rd2 Qa3 33.Rfd1 h6 34.Ne4 Qa6 35.Ke1 Qa4 36.Nf6 gf6 37.Qc4 e4 (37...h5 38.Ra2 b5 39.Rd7 Rd7 40.Qc5 (40.Ra4?! bc4 41.b5 c3+/–) 40...Kf7 41.Ra4 ba4 42.b5+–) 38.Qe4 Kf8 39.Kf1 1–0. Pierred (2145) – Alexandre Petite (2415), Rated game, 2m + 0s, 2005.

9.Nd4 Qe5 10.d3 Be7 (10...Bd6 11.de4 de4 12.Nd2+=) 11.de4 de4 12.Nd2 0–0 13.Rc1 Qg5 14.h4 (14.Qb5 Qe5+=) 14...Qg6 (14...Qg4 15.Qd1 Ne5 16.Qg4 Neg4 17.Be2+=) 15.h5 (15.Qb5 a6 16.Qg5 Nb6+=) 15...Qg5 (15...Qg4 16.Qd1 Qg5 17.Qc2+=) 16.h6 (16.Qb5 Qb5 17.Bb5 Ne5+=) 16...g6= 17.Qc2 Re8 (17...Qg4 18.g3 a5 19.Bh3+/–) 18.Nb5+/– (18.Ne4? Ne4 19.Nb5 Bd8–+) 18...Ne5 (18...Rd8 19.Nc7 Rb8 20.Ne4 Ne4 21.Qe4+–) 19.Be5 Qe5 20.Nc7 Bg4 21.Na8 Ra8 22.Bc4 Rc8 23.Qb1 a5 24.ba5+/– Ba3 25.Bf7!+– Kf7 26.Rc8 Bc8 27.Qb3 Be6 28.Qa3 Qb5 29.Qc3 Nd5 30.Qg7 Ke8 31.Qh7 Qa5 32.Qg6 Kd7 33.Qg7 Kc6 34.h7 Qa3 35.h8Q (35...Nc7 36.Qc3 Qc3 37.Qc3 Kb6 38.Ne4+–) 1–0. mtr – Regnbuen5, Caissa's Web, 2001.

9.Nd4 Be7 10.Nf5 Qc7 11.Ne7 Ke7 12.Nc3 Nb6 13.Qa5 Be6 (13...Bd7 14.Rc1 Qd6 15.d3+=) 14.Rc1 Qd7 15.Qc5 Qd6 (15...Kd8 16.d3+=) 16.Qd6 Kd6 17.Nb5 Ke7 18.Rc7 Nbd7 19.Rb7 a5 20.Bc3 Rhb8 21.Rb8 Rb8 (21...Nb8 22.ba5 Nc6 23.Nc7+–) 22.ba5+– Nc5 23.Bb4 Nfd7 (23...Rc8 24.a6 Kd7 25.a7+–) 24.a6 (24...Kd8 25.a7+–; 24.d4 ed3 25.Bd3 Kd8+–) 1–0. pcmvr (2760) – rsybren (2470), net–chess.com, 2006.

9.Nd4 Be7 10.Nf5 Qc7 11.Ng7 Kf8 12.Nh5 +/–.

9.Nd4 Ng4 10.Nf5 Qg6 11.Nd4 =+.

9.Nd4 g6 10.Nb5+= Qc6 11.N1c3 Kd8 (11...d4 12.Nd4 Qa4 13.Na4+/–) 12.Rc1+/– Qe6 13.Na7 (better is 13.Nd5 Qd5 14.Nc7+–) 13...Bh6? (better is 13...Nb6!? 14.Qa5 Ke7 15.Ne4 de4 16.Nc8 Rc8 17.Rc8 Qc8 18.Qb6 Bg7+–) 14.Ncb5 Rb8? (14...Nb6 15.Qc2 Bd7+–) 15.Nc8 (15.Rc8 Rc8 16.Nc8 Kc8 17.Qa8 Nb8+–) 15...Rc8 16.Rc8 Kc8 17.Be2 (better is 17.Qa5 Nb6 18.Bd4+–) 17...Nb6 18.Qc2 Nc4 19.Bc4 dc4 20.Qa4 (20...Kd8 21.Qa8 Qc8 22.Bf6 Kd7 23.Qa4+–) 1–0. Teichmann,Erik (2290) – Stockfleth,Ron, Hamburg HSK–Elo, 1991.

9.Nd4 g6 10.Nb5 Qc6 11.Bf6 Qf6 12.Nc7 Kd8 13.Nc3 Nb6 14.Qa5 Be6?? (14...Rb8 15.Qa7 Bb4 16.ab4 Nd7+–) 15.Na8 Bd6 16.Nb6 ab6 17.Qb6 Bc7 18.Qb7 Be5 (18...Qe5 19.Rc1 Re8 20.Bb5+–) 19.Nd5 Bd5 20.Qd5 (20...Qd6 21.Qd6 Bd6 22.d3+–) 1–0. Tihomir Glowatzky – arturo, ChessWorld.net, 2005.

9.Be5 Qe7 10.Bf6 Qf6 11.Nd4 =.

9.Nd4 a6

10.Nc3 Rb8 11.Rc1 Qe5 (11...b5 12.Qc2=) 12.f4+= ef3 13.Nf3 Qh5 14.Ne2 (14.Be2 b5 15.Qb3 Bd6+=) 14...Bd6 (14...b5 15.Qc2=) 15.Nf4 (15.Bf6 gf6 16.Ned4 b5+/–) 15...Qh6 16.Bd3 (16.Bf6 Qf6 17.Nd5 Qd8+/–) 16...0–0= 17.0–0 (17.b5=) 17...g5 (better is 17...Bf4!? 18.ef4 Qf4=) 18.Nd5+/– Nd5 19.Rc8 Rbc8 (19...Rfc8 20.Qd7) 20.Qd7 Rcd8 (20...Nc7 21.h4+=) 21.Qb7+/– g4 22.Ne5 Ne3 23.Qe4 (23.de3 Qe3 A double attack) 23...Rfe8? (23...Nf1 24.Qg4 Qg7 25.Qg7 Kg7 26.Nc6 f6 27.Nd8 Bh2 28.Kf1 Rd8=) 24.de3+/– Be5 25.Be5 Rd3 26.Qd3 Theme: Deflection from e5 26...Re5 27.Rf4 Qe6 28.Qd8 Kg7 29.Qd4 h5 30.Re4 (30.e4!?+–) 30...f6+/– 31.Re5 fe5 32.Qc5 Kf6 33.e4 Kg5 34.g3 h4 35.Qe3 Kh5 36.gh4 Kh4 37.a4 Kh5 38.Qc5 Kh4 (38...Kg5 39.b5 ab5 40.ab5+/– (40.Qb5?! Qd6=)) 39.Qf2 Kg5 40.Qd2 (40.b5 ab5 41.ab5 Qd6+/–) 40...Kg6+/– 41.Qd3 Qb6 ½–½. Teichmann,Erik – Konopka,Michael, Bratislava SVK, 1991.

10.d3+= b5 11.Nb5 Qc6 (11...ab5 12.Qa8) 12.N5c3 Qa4 13.Na4 Be7 (13...a5 14.b5+/–) 14.Nd2 0–0 (14...a5 15.b5+/–) 15.de4 de4 16.Rc1 Ne5?? (better is 16...Rb8+/–) 17.Be5+– (17...Bf5 18.Nc5+–) 1–0. pierre – PrinceOfBricks, ChessWorld.net, 2005.

10.d3 Qb8 11.Nd2 Bd6 12.de4 Ne4 (12...de4 13.Qc2+=) 13.Ne4 (13.Nf5 0–0 14.Bg7 b5+–) 13...de4 14.Qc2 (better is 14.Nf5!? 0–0 15.Bg7+/– (15.Ng7 Be5 16.Be5 Qe5–/+)) 14...Nf6= 15.g3 0–0 16.Bg2 Re8 17.0–0 Bg4 18.h3 Bd7 19.Rac1 Rc8 20.Qe2 Rc1 21.Rc1 Qe8 22.Nb3 Be5 23.Be5 Qe5 24.Nc5 Bb5 25.Qc2 (e4 draws heavy fire) 25...Rc8 26.a4 Be8 27.a5 h5 (27...Bb5!?=) 28.Qb1+= Qf5 29.Nb7 (29...Bb5 30.Rc8 Qc8 31.Nd6+– (31.Be4? Ne4 32.Nc5 Nc3–+)) 1–0. Woelfelschneider,Peter – Milde,Lars, corr, 1992.

10.d3 Qb8 11.de4 de4 12.Nd2 b5 13.Qc2 Bb7 14.Rd1 g6?? (better is 14...Qd8=) 15.Nb5!+– ab5 16.Bb5 Bg7 17.Bd7 Kd7 (17...Nd7 18.Bg7 Rg8+–) 18.Ne4 Ke6 19.Qc4 Bd5 20.Ng5 Ke7 21.Bf6 (21.Rd5!? Nd5 22.Bg7 Qb7 23.Qc5 Kd7 24.Bh8 Rc8+–) 21...Bf6 22.Qd5 (22.Rd5?! Bg5 23.Rg5 Ra3+–) 22...Bg5 23.Qg5 Ke8 24.Qf6 Rg8 25.Rd3 Qb5 26.Qd6 g5 (26...Qa6 27.Qa6 Ra6+–) 27.Rd5 (27.Rd5 Qd5 28.Qd5 Ra3 29.Ke2+–) 1–0. marus1 – SSV1, internet, 2001.

10.d3 g6 11.de4 de4 12.Nd2 (12.Nb5!? Qc6 13.Nd2+/–) 12...Bg7+= 13.Qc2 0–0 (13...Qe7 14.Rd1+=) 14.Be2 (14.Ne4!? Ne4 15.Qe4+/–) 14...Re8 15.Rc1 b5 16.0–0 Bb7 17.Qc7 (17.Qc7 Qc7 18.Rc7+=). marus1 – SSV1, internet, 2001.

9.Nd4 Qb8

10.Qb3 Bd6 11.Nc3+= 0–0 12.Nd5+/– Nd5 13.Qd5 Nf6 14.Qg5 h6 15.Qh4 a5 (15...Bd7 16.Rc1+/–) 16.b5 Re8 (16...Rd8 17.Be2+/–) 17.Be2 Bd7 18.0–0 Kh7 (18...Be7 19.Bc4+/–) 19.f4 Qd8 20.Rac1 Qe7 21.a4 Rec8 22.Nb3 (22.d3 Rc1 23.Bc1 Rc8+/–) 22...Qe6 23.Rc8 Bc8 24.Bf6 (24.Nc1 Nd7+/–) 24...Qb3+= 25.Be5 (25.Bc3 Qa4 26.Qd8 Qa3+–) 25...Qd5 (25...Bb4 26.Bd4 Bd2 27.Qg3+/–) 26.Qd8 Qd2 27.Qd6 Qe2 28.Bd4 Bf5 29.Qe5 Threatening mate... how? 29...Qg4 30.h3 f6 (30...Qg6 31.g4 Bg4 32.hg4 Qg4 33.Kf2 Qh4 34.Ke2 Qg4 35.Ke1+–) 31.Qd5 Qg6 32.g4 White gets in control (32.Qb7 Bh3 33.Rf2 Rc8 34.Bf6 Rc1 35.Kh2 A) worse is 35...Qf6 36.gh3 (36.Kh3?? Rh1 37.Kg3 Qh4) 36...Rc4 37.Qa6+=; B) 35...Bc8 36.Qg7 Qg7 37.Bg7 Kg7–/+) 32...Bg4 (32...Bc8!? 33.f5 Qe8+/–) 33.hg4+– Qg4 34.Kf2 Qh4 35.Ke2 Qg4 36.Ke1 Qg3 (36...Rc8 37.Qe4 (37.Qb7? Rc1 38.Kd2 Rf1 39.Qe4 f5–+) 37...f5 38.Qd3+– (38.Qb7?? Rc1 39.Kd2 Rf1–+)) 37.Rf2 Qg1 38.Ke2 Qb1 39.Qc4 Qg1 (39...Qb4 40.Qc2 Re8 41.Rh2+–) 40.Qc7 Qg4 (40...Rf8 41.Qe7 (41.Qa5?! Rc8 42.Bc3 Qb1=) 41...Rc8 42.Qe4 Kh8 43.Rg2+–) 41.Kd2 Rc8 42.Qb7 The passed pawn on b5 will become decisive later (42.Qa5?? Qg1 43.Bc3 Qf2 44.Kc1 Qe3 45.Kb2 Kg6–+) 42...Qe6 Do you see the mate threat? 43.Bb2 Qc4 Threatening mate: Qd3 44.Ke1 Rc5 45.Rg2 The mate threat is Qxg7 45...Rc7 46.Qb6 Qb4 47.Rd2 Rd7 Do you see the mate threat? 48.Bd4 Qb1 49.Rd1 Qb4 50.Kf2 Qa4 51.Qc5 Qa2 52.Kg3 Qe6 (52...Kg6 53.Ra1 Qe2 54.Kh3+/– (54.Ra5?! Qe1 55.Kg4 Qg1 56.Kh3 Qh1 57.Kg3 Qg1 58.Kh3 Qh1 59.Kg3 Qg1 60.Kh3=)) 53.b6 (53.Ra1 Rd5 54.Qc6 Qf5+–) 53...Rd5+/– 54.Qc2 Rh5 Threatening mate: Qh3 55.Rg1 Qh3 (55...a4 56.b7 (56.Qa4?! Qh3 57.Kf2 Qf3 58.Ke1 Rh2 59.Rg7 Kg7 60.Qd7 Kg6 61.Qe8 Kf5 62.Qd7 Kg6 63.Qe8 Kf5 64.Qd7 Kg6=) 56...Qh3 57.Kf2 Qf3 58.Ke1+=) 56.Kf2+– White threatens strongly Qc7 56...Qf3 57.Ke1 Rb5 58.Qg2 Threatening mate... how? 58...Rb1 59.Kd2 Qg2 60.Rg2 a4 (60...Rb3+–) 61.Kc2 Rb3 62.Rg1 h5 63.f5 (better is 63.Rh1 Rb5 64.f5 h4+–) 63...Kh6 (63...h4 64.Rg4 h3 65.Rh4 Kg8 66.Rh3 Rb4+–) 64.Rb1 Rb6 65.Rb6 h4 66.Kb2 h3 67.Ka3 Kg5 68.Rb7 (68.Rb7 Kh6 69.Ka4+–) 1–0. aschellen (1950) – Meman (1860), internet, 2006.

10.Nc3 a5 11.ba5 Qc7 12.Nb3 +=.

10.Nc3 a5 11.Ncb5 Be7 +=.

10.Nf5 a5 11.ba5 Qc7 12.Nc3 (12.Bc3 Qc6 13.Bb5 Qe6+=) 12...Qe5 (12...Ra5!? 13.Nb5 Ra4 14.Nc7 Kd8=) 13.Ng3+= Be7 14.Qb5 Qe6 15.d3 0–0 16.de4 de4 17.Bc4 Qg4 18.Rd1 Bd8 19.0–0 Ra5 20.Qb4 Qh4 21.Nd5 Nd5 22.Bd5 Nf6 23.Ba2 Ng4 24.h3 Ne5 25.Ne4 Bf5 26.f4 Be4 27.fe5 (27.Be5?! Bc6+/–) 27...Bg6 28.Qh4 Bh4 29.Rd7 Bg5 30.e4 (30.e6 Be3 31.Kh1 Bc5 32.Rb7 h6 33.ef7 Kh7+–) 30...Be3 (30...b5 31.e6 b4 32.Rf3+–) 31.Kh1 Bc5 32.e6 (32.Rb7?! Ba3 33.e6 Bb2 34.Rb2 Ra7+–) 32...h5 33.ef7 Kh7 34.e5 Ba3 35.Ba3 Ra3 36.Bd5 Bd3 37.Re1 Bf5 38.e6 Be6 (38...Raa8+–) 39.Re6 Ra1 40.Kh2 Rf1 41.Re8 R1f7 42.Bf7 (42.Bf7 Re8 43.Be8+–) 1–0. bambinik (2510) – Babarian Monster, internet, 2003.

10.Nf5 a6 11.Be2 b5 12.Qc2 Nb6 13.Ng3 Bd6 (13...Qd6 14.d3 Bb7 15.Nd2=) 14.Bf6+= gf6 15.0–0 (15.d3 Be5 16.Nc3 ed3 17.Bd3 Na4+=) 15...Be6 16.f4 Rg8 (16...Qc7 17.Qb2=) 17.Nh5 (17.d3 f5+=) 17...Be7= 18.Qc3 (18.Nc3 f5=) 18...Qd6 19.f5 (19.Nf6? Bf6 20.Qf6 Rg2 21.Kg2 Bh3 22.Kh3 Qf6–+) 19...Bd7 20.Qd4 Bd8 21.Nc3 Qe5 22.Nf4 Now all is on d5 22...Bc6 (22...Qf5? 23.Nfd5 (23.Ncd5?! Qe5=) 23...Qe5 24.Qe5 fe5 25.Nb6 Bb6 26.Ne4+–) 23.Rac1 Bb7 24.d3 Bc7 (worse is 24...Qf5 25.Nfd5 Qe5 26.de4+– (26.Nb6?! Qd4 27.ed4 Bb6=)) 25.de4 de4 26.Bb5 Kf8 (26...ab5 27.Nb5 Qb5 28.Rc7 Bc6+/–) 27.Be2+/– Rc8 28.Qc5 Qc5 29.bc5 Bf4 30.Rf4 (30.ef4?! Rc5 31.Rfe1 a5= (worse is 31...Rf5 32.Rb1 Nd5 33.Ne4 Nf4 34.Rb7 Rg2 35.Kf1 Rh2 36.Bg4+=)) 30...Rc5 31.Rb1 Rc3 32.Rb6 Rc1 (32...Rc7 33.Ba6 Ba6 34.Ra6 Rc1 35.Rf1+/–) 33.Kf2+– Rc7 34.Rf6 (34.Ba6?! Ba6 35.Ra6 Rc2 36.Kf1 Rgg2 37.Ra8 Kg7=) 34...a5 35.Rb6 1–0. Felkel,Siegfried (1985) – Sternik,Ryszard (1935), Tiger Temat, 2006.

10.Nc3 Bd6

11.Qb3 0–0 12.Nd5 a5 13.Nb5 (13.Nf5 Kh8 14.Nd6 Qd6 15.Nf6 Nf6 16.ba5 Ra5+/–) 13...Nd5+= 14.Qd5 Be5 15.Be5 Qe5 16.Qe5 Ne5 17.Nc7 (17.ba5 Be6+=) 17...Ra7 18.b5 b6 19.Nd5 (19.Rc1 Bf5 20.Nd5 Rb7+=) 19...Rb7 20.Be2 Rd8 (20...Be6 21.Nc3 f5 22.f3+=) 21.Nc3 f5 (21...Bf5 22.f3 ef3 23.gf3+=) 22.f3= Rbd7 (22...ef3 23.gf3 f4 24.Rd1+=) 23.fe4+= fe4 24.Ne4 Bb7 25.Ng5 (25.d4 Be4 26.de5 Bg2+=) 25...Rd2 26.Ne6 R8d6 27.Nd4 Rb2 28.Rf1 Bg2 (28...Be4 29.Rc1 h6 30.Rf2+=) 29.Rf5 Nf7 30.Bc4 Rf6 31.0–0–0 (31.Rd1 Bh3 32.Rf6 gf6=) 31...Rf2 32.Rf2 (32.Rd2 Rd2 33.Kd2 Bh3 34.Rf6 gf6+=) 32...Rf2= 33.Rd2 (33.Ne6 Be4 34.Rd4 Bf5=) 33...Rd2 34.Kd2 g5 (34...g6 35.Kc3=) 35.Ne6+= Nd6 36.Bb3 Kh8 37.a4 g4 38.Kd3 (38.Kc3 Bf3+=) 38...Bf3= 39.Ng5 Nb7 40.Bc2 Nc5 41.Kd4 h6 42.Nf7 (42.Nf3 gf3 43.Bd3 Na4–+) 42...Kg7 43.Nd6 (43.Ne5 Ne6 44.Kc3 Ng5=) 43...Kf6+= 44.Nc8 (44.e4 h5=) 44...Nd7 45.Bh7 (45.e4 h5 46.e5 Ne5 47.Nb6 h4 48.Nd5 Ke6 49.Nf4 Kd6+=) 45...h5= 46.e4 h4 47.Ke3 Ke5 ½–½. Muri,Heinrich (2345) – Nyberg,Wilfred (2430), EU–ch65 sf08 email, 2003.

11.Qb3 0–0 12.Nd5+/– Nd5 13.Qd5 Nf6 14.Qb3 Bd7 15.Rc1 a5 16.ba5 Ra5 17.Bb5 Bb5 18.Nb5 Be5 19.Rc5 Bb2 20.Qb2 h6 21.Rc4 Rc8 22.Rc8 Qc8 23.0–0 Qc4 24.Rb1 Qd3 25.Nc3 Nd5 26.Nd5 Qd5 27.Qb7 Qb7 28.Rb7 Ra3 The mate threat is Ra1 29.Kf1 Kf8 (29...Ra1 30.Ke2+=) 30.Ke2+/– Ra1 31.g4 Ra4 (31...Rg1 32.h3 g6 33.Rb4+/–) 32.Rb8 (32.h3 g5+–) 32...Ke7+/– 33.h4 g6 34.Rh8 Kf6 35.Rh6 Kg7 36.g5 Ra5 (36...Ra2 37.h5+–) 37.f3 ef3 38.Kf3 f6 39.d4 fg5 40.hg5 Rg5 41.Rh1 Ra5 42.e4 Kf6 43.e5 Kf5 44.Re1 (44.Re1 Ra6 45.d5 Ra3 46.Kf2 Ra2 47.Kf1+–) 1–0. Woelfelschneider,Peter – Ball, 2009.

11.Qb3 0–0 12.Nd5+= Nd5 13.Qd5 Nf6 14.Qg5 h6 (14...Rd8 15.d3 a5 16.de4+/– (16.ba5?! h6 17.Qh4 Qc7+/–)) 15.Qh4 Re8 (15...a5 16.ba5 Ra5 17.d3+/–) 16.Be2 a5 17.b5 Bd7 (17...Rd8 18.d3 ed3 19.Bd3+/–) 18.a4 (18.d3 Qd8+/–) 18...Qd8 19.0–0 (19.Rc1 Nd5 20.Qd8 Rad8+/–) 19...Rc8 (19...Ng4 20.Qd8 Rad8 21.f4+=) 20.Rac1 Nd5 (20...Ng4 21.Qd8 Red8 22.f4+=) 21.Qd8 Red8 22.Rc8 Rc8 23.Ra1 Nb4+= 24.f3 f5 25.g4 g6 26.gf5 gf5 27.Nb3 b6 28.fe4+= fe4 29.Rf1 Bf8 30.Rf6 Nd5 31.Rf2 Rc2 32.Be5 (32...Bg7 33.Rg2+–) 1–0. Bonetti,Shane (2110) – Hasek,Frantisek (1765), ETC TT–15, 2005.

11.Qb3 Nb6 12.Bb5 Bd7 13.Bd7 Kd7 14.Nf5 =.

11.Qb3 Nb6 12.Bb5 Ke7 13.Rc1 +=.

11.Nf5 0–0

12.Nd6 Nb6 13.Qa5+= Qd6 14.Nb5 Qd8 15.Na7 Bf5 16.Be2 Re8 17.Bd4 Re6 18.h4 Qc7 19.Bb5 Ng4 20.Be2 (20.h5 h6+=) 20...Ne5 (20...Nf6 21.h5+=) 21.Qc5 Qd8 22.Be5 Re5 23.Nb5 Qf6 24.Qd4 Bd7 25.Nc3 Na4 26.Na4 Ba4 27.0–0 Qd6 28.Rfc1 Re6 29.b5 White terminates the opponent with strong threats 29...Ree8 (29...Rh6 30.h5 Bb3 31.Rab1+/–) 30.Rab1 Ra5 31.Rb4 Rea8 32.Bc4! Rc8 (32...dc4 A pinning theme 33.Qd6) 33.Rc3 Kf8 (better is 33...Rd8 34.Bd5! A) 34...Qd5?? 35.Qd5 (35.Ra4?! Rb5 36.Rb4 Ra5+–) 35...Rf8 36.Qb7+–; B) 34...Rb5 35.Bb7 g6 36.Qd6 Rd6 37.Be4 Rb4 38.ab4 Rd2+–) 34.Bd5 (worse is 34.Qd5 Qd5 35.Bd5 Rc3 36.dc3 Bb5 37.Bb7 f5+–) 34...Rc3 35.Qc3 Bb5 (35...Qd5?? 36.Rd4 Qd4 37.Qd4+–) 36.Re4 Ra8 37.Bb7 Rd8 (37...Rb8+–) 1–0. Byrne,Tony (1885) – Meier,Franz, TT–13 ETC, 2004.

12.Nd6 Qd6 13.Nb5 Qe7 14.Na7 +=.

12.Nd6 Qd6 13.Nb5 Qe7 14.Rc1 Nb6 (14...a6 15.Nc7 Rb8 16.b5+=) 15.Qc2 Bg4 16.Qc7 Qc7 17.Rc7 Rfc8 18.Rc8 Rc8 (18...Nc8? 19.Nc7 Rb8 20.Bf6 gf6 21.Nd5+–) 19.f3 (19.Na7 Rc2 20.f3 Rb2 21.fg4 Ng4–+) 19...ef3 20.Bf6 fg2 21.Bg2 gf6 22.Nc3 Exerts pressure on the isolated pawn (22.Rg1 Kf8=) 22...Be6= 23.Rf1 Rc4 24.Rf4 Rf4 25.ef4 (25.ef4 Nc4 26.a4=). Woelfelschneider,Peter – Zmolil,Josef, TT–12 ETC, 2004.

12.Nd6 Qd6 13.Nb5 Qe7 14.Bd4 Pawn a7, live or die! 14...a6 15.Nc7 White plans b5 15...Rb8 16.b5 (16.Qb3 Qd6 17.Rc1 b5+=) 16...Nc5 17.Qb4 Qc7 18.Qc5 Qc5 19.Bc5 Re8 20.Bd4 Ng4 (20...Ra8 21.Rb1+=) 21.Rb1 (21.Rc1 Ne5+=) 21...Ra8 (21...Bd7 22.Be2+=) 22.Be2 (22.ba6 ba6 23.Be2 Ne5+=) 22...Ne5 (22...ab5 23.Rb5 Ra3 24.Rd5+=) 23.ba6 ba6 24.Be5 Re5 25.0–0 Re8 26.Rfc1 (26.d4 ed3 27.Bd3 Be6+=) 26...Be6 27.d4 (27.h3 g6+=) 27...ed3 28.Bd3 g6 29.Kf1 (29.h4 Red8+=) 29...Kg7 30.Rc5 Kf6 (30...a5 31.Rbb5+=) 31.Ra5 The isolani on a6 becomes a target (31.a4 Red8+/–) 31...Red8 32.Rb4 (32.Ba6? Rd6–+) 32...Rd6 33.Ke2 (33.g3 Rc6+=) 33...Rc6 34.h4 (34.Kf3 h5+=) 34...h5 (34...Ke5 35.Kf3+=) 35.Kd2 (35.Kf3 Rc3 36.Bf1 Rd8+=) 35...Ra7 36.f3 (36.Kd1 Rd6+=) 36...Ke7 37.Rb2 Kd6 38.Rb4 Ke7 39.g3 Kd8 (39...Kf6 40.Rb1+=) 40.Kd1 (40.g4 Ke7+/–) 40...Rac7 41.Ke2 (worse is 41.Ba6 Rc1 42.Kd2 R7c2 43.Kd3 Rf2=) 41...Rc1 (41...Ke7 42.Rb2+=) 42.Rb1 (42.Ra6!? Rg1 43.Kf2+=) 42...Rb1= 43.Bb1 Rb7 44.Bc2 Rb2 45.Kd2 (45.Kd1 Rb6=) 45...Ra2 (45...Rb6 46.Kc3=) 46.Kc1+= ½–½. Fels,Bernhard (2020) – Morin,Stephane (1940), WC–2009–F–00007, 2009.

12.Nd6 White is in command 12...Qd6 13.Nb5 Qe7 14.Bd4 The pressure on a7 grows 14...b6 15.Rc1 (15.Na7 Ne5 16.Bb6 Nfg4=) 15...a6 (15...a5 16.Be2+=) 16.Nc7+/– Rb8 17.Ba6 Ba6 18.Qa6 Qd6 19.Rc3 Rfd8 20.h3 Ne5 21.Nb5 Qe7 22.Be5 (22.Bb6 Qe6 23.Nd4 Qb6 24.Qb6 Rb6–/+) 22...Qe5 23.Nd4 Qd6 24.0–0 (24.Nc6 d4 25.ed4 Ra8 26.Qb6 Nd5+–) 24...Ra8+/– 25.Qb5 Rdc8 26.Nc6 Nd7 27.Rfc1 Re8 28.a4 Kh8 29.d4 Qe6 30.a5 ba5 31.ba5 Opening the b–file gets White a lot of play 31...g5 32.a6 g4 33.h4 Nf6 34.a7 Qd7 (34...Kg7 35.Qb7 Nd7 36.Nb4+–) 35.Rb1 g3 36.fg3 Qc7 37.Qb7 (better is 37.Qb8! Rab8 38.Rb8 Qg3+–) 37...Qg3 White now must not overlook the idea Ng4 38.Ne5 (38.Qf7?! Rf8 39.Rb8 Qe1 40.Kh2 Qh4 41.Kg1 Qe1 42.Kh2 Qh4 43.Kg1 Qe1 44.Kh2 Qh4=) 38...Rf8 39.Nf7 Kg8 40.Nh6 (40.Ng5 Rae8 41.Rc6 Qe3 42.Kh1 Qg3 43.Rf6 Qh4 44.Kg1 Rf6 45.Qd5 Kh8+–) 40...Kh8 41.Rcb3 (41.Nf5 Qg6 42.Qa8 Ra8 43.Rb8 Qg8 44.Rg8 Ng8+–) 41...Rae8 42.Nf5 Qg6 43.Nd6 (43.Nd6 Qg3 44.Ne8 Ne8 45.Qe7+–) 1–0. Riepe,Bernhard (2050) – Hoegerl,Felix (2050), Telechess CBM, 2004.

10.d3 Bd6

11.Nd2 0–0 =.

11.Nf5 0–0 12.Nd6 Qd6 13.Nb5 Qe7 14.Bd4 Increases the pressure on a7 14...a6 15.Nc7 White prepares b5 15...Rb8 16.b5 Nc5 17.Qb4 Qc7 18.Qc5 Qc5 19.Bc5 Re8 20.Bd4 Ng4 21.Rb1 Ra8 22.Be2 Ne5 23.ba6 ba6 24.Be5 Re5 25.0–0 Re8 26.Rfc1 Be6 27.d4 ed3 28.Bd3 g6 29.Kf1 Kg7 30.Rc5 Kf6 31.Ra5 Red8 32.Rb4 Rd6 33.Ke2 Rc6 34.h4 h5 35.Kd2 Ra7 36.f3 Ke7 37.Rb2 Kd6 38.Rb4 Ke7 39.g3 Kd8 40.Kd1 Rac7 41.Ke2 Rc1 42.Rb1 Rb1+= 43.Bb1 Rb7 44.Bc2 Rb2 45.Kd2 Ra2 46.Kc1 (46.Ra6?! Bf5 47.Rc6 Kd7=) ½–½. Fels,Bernhard (2020) – Morin,Stephane (1940), WC–2009–F–00007, 2009.

11.de4 de4

12.Nc3 0–0

13.Rd1 a5 14.ba5 Nc5 =.

13.Be2 a5

14.ba5 Nc5 15.Qc2 Bd7 =.

14.ba5 Rd8 =.

14.Qb3 ab4 15.ab4 Ra1 16.Ba1 Nb6 17.h3 Be5 18.Qc2 Bd4 19.ed4 Bf5 20.Qd2 Nbd5 21.0–0 Be6 22.b5 Qd6 23.Rc1 Nc3 24.Bc3 Nd5 25.Bc4 Rd8 26.Bd5 Bd5 27.Qg5 Qb6 28.Bd2 f6 29.Qg3 Qb5 30.Rc7 Bf7 31.Bh6 g6 (31...g5!?=) 32.Qa3+= Qe8 33.Qc5 Rb8 (33...g5 34.Qb6 Qe6 35.Rb7 Qb6 36.Rb6+=) 34.d5 b6 (34...Ra8 35.Qd4 (35.Rb7?! Qe5+=) 35...Qe5 36.Qe5 fe5 37.d6+=) 35.Qd6+/– Qe5 36.Qe5 fe5 37.d6 Rd8 38.Rb7 Bd5 39.Rb6 Kf7 40.Bg5 Rd7 41.Be3 Ke6 42.Bc5 g5 43.Kh2 Rd8 44.Ra6 e3 45.fe3 h5 46.g4 h4 47.Ra7 Rd7 48.Rc7 Be4 49.Ba3 Bg6 50.Kg1 Bd3 51.Rc8 Bg6 52.Bc5 Kd5 53.Bb4 Be4 54.Rg8 Rb7 55.Ba3 Ke6 (55...Bc2 56.Kf2 Ba4 57.Rg5+=) 56.Rg5 (56.Re8!? Kd5 57.Re7 Re7 58.de7+–) 56...Rb1+= 57.Kf2 Rh1 58.d7 Kd7 59.Re5 Rh2 60.Ke1 Bg2 61.g5 Bh3 62.Re7 Kc6 63.g6 Rg2 64.g7 Bd7 65.Bb2 Kd6 (65...Rb2 66.g8Q Combination) 66.Bf6 h3 67.Re5 Be6 68.Rh5 Kd7 69.Be5 Ke8 70.e4 Ke7 71.Rh7 Kf7 72.Rh8 Ke7 73.Kd1 Rg5 74.Bd4 Rg2 75.Ke1 Kd6 76.Rh5 Ke7 77.Rh7 Kd6 78.Rh4 Kd7 79.Rh6 Ke7 80.Be5 h2 (80...Kd7 81.Rh7 Ke8 82.Kd1+=) 81.Bh2 Rg7 82.Ke2 Rg5 83.Ke3 Ra5 84.Bc7 Ra3 85.Kd4 Rh3 86.Rg6 Rh1 87.Bf4 Ra1 88.Bd2 Kf7 89.Rg2 Rb1 90.Bc3 ½–½. Pierred (2280) – Palmeirasebarca0 (2380), Rated game, 2m + 0s, 2006.

14.Qb3 ab4 15.ab4 Ra1 16.Ba1 Be5 17.Bb2 (17.Ncb5 Nb6=) 17...Nb6+= 18.Qa3 Bd4 19.ed4 Bg4 20.Ne4 Ne4 21.Bg4 Nc4 22.Qa2 Qf4 23.0–0 Ncd2 (23...Nb2?! 24.Qb2 Rd8 25.Re1+=) 24.Qa1 Qg4 25.f3 Qf4 26.fe4 Qe3 (26...Qf1 27.Qf1 Nf1 28.Kf1–/+) 27.Kh1 Nf1 28.Qf1 Rc8 29.h3? (29.Qa1–+) 29...Rc2 (worse is 29...Qe4 30.Kh2–+) 30.Kh2 (30.e5 h6 (30...Rb2?! 31.Qa1 Rb1 32.Qb1=) 31.Qg1 Qg1 32.Kg1 Rb2–+) 30...h5 (30...Rb2?! 31.Qa1 Rg2 32.Kg2 Qe4 33.Kf2–/+) 31.Ba3 h4 32.Qg1 (32.e5 Rf2 33.Bc1 Qg3 (33...Rf1?! 34.Be3 Rb1 35.g4–/+) 34.Kg1 Rf1 35.Kf1 Qd3 36.Ke1 Qd4–+) 32...Qg3 33.Kh1 Qa3 0–1. Pierred (2150) – "Albert Einstein" (2405), Rated game, 3m + 0s, 2005.

14.Qb3 ab4=+ 15.ab4 Ra1 16.Ba1 Be5 17.Nf5 Nb6 18.Ne7 Kh8 19.Nc8 Rc8 20.Bb2 Qd6 (20...Kg8 21.f3=+) 21.Nb5 Qe7 22.Nd4 Nbd5 23.b5 Qc7 24.h3 (24.Qd1!?=+) ½–½. guest240 – Waltercomp (2500), ICC, 2003.

14.Qb3 Ne5 15.Rd1 (15.ba5 Rd8=) 15...Nc6 (15...ab4 16.ab4 Nc6 17.b5 Nd4 18.ed4+=) 16.Ncb5 (16.Nd5 ab4 17.Nf6 gf6=) 16...Be7 (16...Be5 17.Nc6 bc6 18.Be5 Qe5 19.Nd4=) 17.ba5 Na5 18.Qc2 Bd7 19.Qb1 (19.Qc7 Rc8 20.Qb8 Rab8=) 19...Rc8 20.Qa2 b6 (20...Rc5 21.Bc3=) 21.h3 (21.f3 Nc6=) 21...Rc5 22.0–0 Qe8 23.a4 Rac8 24.Rc1 (24.Ba3 Rg5 25.Kh1 Rd5=) 24...Nc6 25.Rc5 Bc5 (25...bc5 26.Nc6 Rc6 27.Rd1=) 26.Nc6 (26.Rd1 Qe7=) 26...Rc6 27.Bc4 (27.Qb1 Qe7=) 27...h6 (27...Qe7 28.Rd1=) 28.Rd1+= Bf5 29.Bc3 (29.Qb3 Be6 30.Be6 Qe6 31.Qe6 Re6 32.Rd8 Kh7 33.Bf6 gf6+=) 29...Qe7 30.Qc2 (30.Nd4 Rd6=) 30...Nd7 (30...Be6 31.Be6 Re6 32.Bd4=) 31.Qd2 (31.Nd4 Bd4 32.Rd4 Nc5=) 31...Rg6= 32.Kf1 Qh4 33.Qd5 (33.Nd4 Rd6 34.Nf5 Rd2 35.Rd2 Qg5 36.Rd7 Qf5 37.Rf7 Qf7 38.Bf7 Kf7+–) 33...Be6 34.Qa8 Nf8 35.Be6 Re6 36.Rd8 Qe7 ½–½. Woelfelschneider,Peter – Hartmann,Markus, corr ICCF 2–2866, 1993.

14.Qb3 Bh2 15.g3 Bg3 16.fg3 Qg3 17.Kd2 ab4 18.Qb4 +/–.

8.Bb5 e4

9.Nd4 a6 10.Qa4 Qb8 11.Be2 =.

9.Nd4 a6 10.Qa4 g6 11.Nc3 Bg7 12.Be2 0–0 13.d3 ed3 14.Bd3 Ne5 15.Be2 Bg4 16.Rd1 Nc4 17.Ba1 b5 18.Qb3 Rad8 19.Nf3 Qb6 20.Nd4 Rfe8 21.0–0 Bh6 (21...Be2 22.Nce2 Ne4 23.Qd3=) 22.h3 Bc8 (22...Be2 23.Nce2 Ne4 24.Nc2=) 23.Nc2 d4 (better is 23...Bg7=) 24.ed4?? (24.Na4 Qc7 25.Nc5 (< 25.Rd4 Nd2 26.Qc3 Qc3 27.Bc3 Nf1 28.Rd8 Rd8 29.Bf6 Rd2 30.Bf1 Rc2–/+) 25...de3 26.Bf6 Rd1 27.Rd1 ef2 28.Kf2=) 24...Nd2–/+ 25.Rd2 Bd2 26.Bf3 Bh6 27.d5 Bg7 28.Ne2 (28.Rd1 Bf5=+) 28...Ne4 (28...Qd6 29.Rd1–/+) 29.Bg7=+ Kg7 30.Be4 Re4 31.Ng3 (better is 31.Qc3 Kg8 32.Ne3=+) 31...Rf4 (31...Re5!? 32.Ne3 Bb7–/+) 32.Ne3 (32.Nh5! gh5 33.Qg3 Rg4 34.hg4 hg4 35.Ne3+=) 32...h5 33.Qc3 Qf6 (34.Qc2 Re8=). Myslowski,Karol – Kulik,Wojciech, Tur klas z norm Kand, 1980.

9.Nd4 a6 10.Qa4 g6 11.f4 Bg7 (11...ab5? 12.Qa8 Nb6 13.Qa7+–) 12.Be2 0–0 13.0–0 Nb6 14.Qb3 Bd7 (14...Bg4 15.Nc3+=) 15.Nc3 (15.a4 Rfc8+=) 15...Rac8 16.Rad1 (16.Rac1 Nh5 17.g3 Bd4 18.ed4 Ng7–/+) 16...Nc4–/+ 17.Ba1 Ng4?? (better is 17...Bg4–/+) 18.Ne4+= de4 19.Bc4 g5?? (better is 19...b5 20.Be2 Rfd8+=) 20.h3+– gf4 (20...b5 21.Be2 Nf6 22.fg5 Ne8+–) 21.Rf4 (better is 21.hg4 f3 22.Nf5 (22.gf3?! Qg3 23.Kh1 Qh3 24.Kg1 Qg3 25.Kh1 Qh3 26.Kg1 Qg3=) 22...Bf5 23.Bg7+–) 21...Be5?? (better is 21...Nf6+/–) 22.Bf7+– Kg7 (22...Kh8 23.hg4 b6 24.Re4+–) 23.hg4 (23.Rg4?! Bg4 24.Ne6 Be6 25.Qe6 Qe6 26.Be6 Ba1 27.Bc8 Rc8 28.Ra1 Rc2+/–) 23...Kh6 (23...Kh8+–) 24.Rdf1 Bf4 25.ef4 Bg4 (25...Qf4 26.Rf4 Rc1 27.Kh2 e3 28.Qe6 Be6 29.g5 Kg5 30.Ne6 Kh6 31.Bg7) 26.Qg3 (26.Nf5! Bf5 27.Qg3 Qb6 28.Kh1 Qg1 29.Kg1 Bg4 30.Qg4 Rf7 31.Qg5) 26...Qd8 27.Nf5! 1–0. Huettemann,Ralf (2065) – Zimm,Justus, ZDMI Open, 2010.

9.Nd4 a6 10.Be2 b5 =.

9.Nd4 g6 10.0–0 Bg7 11.Nc3 a6 12.Ba4 (12.Rc1 0–0 (12...ab5? 13.Ncb5 Qb8 14.Rc8 Qc8 15.Nd6 Ke7 16.Nc8 Rhc8 17.Nb5+–) 13.Be2 Ne5=) 12...0–0 13.d3 Ne5 14.de4 de4 15.Nf5 (15.Qe2 Rd8=) 15...Qd1+= 16.Ne7 Kh8 17.Nd1 (17.Bd1? Nc4 18.Rb1 Be6–+; 17.Rfd1 Nd3 18.Rab1 Ng4=) 17...Nd3 (17...Nd3 18.Bd4 Bd7–/+) 0–1. Lindqvist,Ingvar – Reimer,Rolf, corr SSKK 1–93, 1985.

9.Nd4 g6 10.f3 Bg7 11.fe4 de4 12.Nc3 a6 13.Be2 0–0 14.Qc2 Re8 15.0–0–0 (better is 15.0–0!?=) 15...b6 16.Qb3 Bb7 17.Kb1 Bd5 (better is 17...Rac8!?–/+) 18.Nd5+= Nd5 (18...Qd5? 19.Bc4 Qg5 20.Bf7 Kh8 21.Be8 Re8 22.g3+–) 19.Bc4 N7f6 20.Qa2 (20.d3 Rad8–/+) 20...b5–/+ 21.Bb3 Red8 22.Rc1 Ng4?? (better is 22...Rac8–/+) 23.Rc5+= Ngf6 (23...Nc7 24.Bf7 Kh8+–) 24.Rhc1?? (24.Nc6 Bf8+–) 24...Qh2?? (better is 24...Rd7=) 25.Bd5 Nd5 26.Rd5 Qg2? (26...Rf8+–) 27.Rd8 (27.Ne6 Rdc8 28.Ng7 Rc1 29.Kc1 Rc8 30.Rc5 Qf1 31.Kc2 Qd3 32.Kd1 Qf1 33.Kc2 Qd3 34.Kd1 Qf1 35.Kc2=) 27...Rd8 28.Bc3?? (28.Ne6!? Qd2 29.Ng7 Qe3+–) 28...h5 (28...Rd7 29.Ba1 h6 30.Qc2+–) 29.Qa1 (better is 29.Ne6!? fe6 30.Qe6 Kh7 31.Bg7+–) 29...Bf8 (29...Bd4 30.ed4 Qf3 31.Kb2+=) 30.Ka2 h4 (30...Rc8!?+/–) 31.Rg1+– Qf2 32.Qe1?? (32.Rg4 Bg7 33.Qh1 Rd4 34.ed4 Bd4 35.Qh4 Qh4 36.Rh4 Bc3 37.dc3 f5+–) 32...Qf6?? (better is 32...Qe1 33.Re1 Rd5=) 33.Nb5! Qe6 (33...ab5 34.Qf1 Double attack (34.Bf6 Discovered attack; 34.Qf1 Decoy)) 34.Kb2 ab5 (34...Bg7 35.Nd4 (35.Qh4?! Rd2 36.Kc1 Rd3 37.Bg7 Kg7=) 35...Bd4 36.Bd4+–) 35.Qh4 (35.Qh4 Rd2 36.Bd2 Bg7 37.Kc1+–) 1–0. Fournier,Frederic (2090) – Mallet,Gregoire, Ch Club, 2011.

9.Ne5 Be7 10.0–0 A) 10...a6 11.Nd7 (11.Bd7 Nd7 12.Nd7 Bd7 13.Bd4 Qg6 14.f3 Bb5) 11...Bd7 12.Bd7 Qd7 13.Bd4 0–0 14.Nc3 Rac8; B) 10...Qe6 11.Nd7 (11.Bd4 0–0 12.f4 Ne5 13.Be5 Ng4 14.Bd4 Nh6) 11...Bd7 12.Bd7 Qd7 13.Nc3 0–0 14.Qa4 Qa4; C) 10...0–0 11.f4 (11.d4 Qe6 12.Bd7 Bd7 13.Nc3 a5 14.ba5 Ra5) 11...Qe6 12.Bd4 Ne5 13.Be5 Ng4 14.Bd4 Nh6.

9.Ne5 Be7 10.d4 A) 10...0–0 11.0–0 (11.Nd2 Qb6 12.Qa4 Ne5 13.de5 Ng4 14.Be2 Qe6) 11...Qe6 12.Nd2 a6 13.Be2 Ne5 14.de5 Ng4; B) 10...Qe6 11.Nd2 (11.0–0 0–0 12.Bd7 Bd7 13.Nc3 a5 14.ba5 Ra5) 11...0–0 12.0–0 Ne5 13.de5 Ng4 14.Rc1 a6; C) 10...a6 11.Be2 (11.Ba4 0–0 12.0–0 Qe6 13.Nd2 Ne5 14.de5 Ng4) 11...Qe6 12.Nd2 0–0 13.0–0 Ne5 14.de5 Ng4.

9.Ne5 Be7 10.Nd7 Bd7 11.Bd7 (11.Nc3 0–0 12.Bd7 Qd7 13.Qa4 Qf5 14.0–0 Qe5) 11...Qd7 12.0–0 (12.Bd4 0–0 13.Nc3 Rfc8 14.0–0 Rc6) 12...0–0 13.d4 (13.Bd4 Rfc8+= 14.Nc3 Rc6) 13...Rfc8 (13...Rac8 14.Nc3 Rc6) 14.Nd2 (14.Nc3 Rc6–/+) 14...Bd6 (14...a5–/+) 15.g3 (15.Qb3 Qb5–/+) 15...Rc6 (15...Qh3 16.f3–+) 16.Rc1 Rac8 17.Rc6 Rc6 18.Qb3 Qc8 19.Nb1?? (better is 19.Rd1–/+) 19...Qh3–+ 20.f4 (20.Qd1 Ng4 21.Qg4 Qg4 22.Nc3–+) 20…Ng4 (20...Ng4 21.Rf2 Nf2–+) 0–1. Lentner,Gerwald (1825) – Schnider,Gert (2310), Lienz AUT, 2013.

9.Ne5 Be7 10.f4 A) 10...0–0 11.0–0 (11.Bd4 Qe6 12.0–0 Ne5 13.Be5 Ng4 14.Bd4 Nh6) 11...a5 12.ba5 Ra5 13.a4 Qe6 14.f5 Qb6; B) 10...a5 11.ba5 (11.Bc3 0–0 12.ba5 Nc5 13.0–0 Bf5 14.a4 Bd8) 11...0–0 12.0–0 Ra5 13.a4 Qe6 14.f5 Qb6; C) 10...a6 11.Be2 (11.Nd7 Bd7 12.Bd7 Qd7 13.Bd4 0–0 14.0–0 Rac8) 11...0–0 12.0–0 Qe6 13.Bd4 Ne5 14.Be5 Nd7.

8.Nc3 a6

9.Qa4 e4 10.Nd4 =.

9.Qa4 Be7 10.Be2 (10.Rc1 Qb8+=) 10...0–0= 11.0–0 e4 12.Nd4 Ne5 13.f4 Nc4 14.Bc4 dc4 15.b5 (15.Qc2!?=) 15...Qc5 +=. Ziethen,H – Barczynski,Miroslaw, corr ICCF–Cup8 V190, 1990.

9.Qb3 b5 10.Bb5? (better is 10.d4 e4 11.Ne5=) 10...ab5–+ 11.Nb5 Qb6 (11...Qb8 12.Nc3 Qb7 13.0–0–+) 12.Nc3 (12.a4 e4 13.Bf6 ef3–/+ (13...Qf6?! 14.Nfd4 Qb6 15.Rc1+=)) 12...Bb7 13.Na4 (13.d4 e4 14.Ne5 Qe6–+) 13...Qb5 14.Nc3 Qb6?? (14...Qd3 15.Qd1–+) 15.d4?? (15.Na4 Qa6 16.Nc3–+) 15...Bd6 (15...e4 16.Ne5–+) 16.0–0 (16.Na4 Qb5 17.de5 Ne5 (17...Qa4?! 18.Qa4 Ra4 19.ed6+=; 17...Ra4?! 18.ed6 Nc5 19.Nd4 Nb3 20.Nb5 Na1 21.Ba1–/+) 18.Be5 Be5 19.Ne5 Ra4–/+) 16...0–0 (16...e4!? 17.Ng5–+) 17.de5 (17.Na4 Qb5 18.de5 Ne5 19.Be5 Be5 20.Ne5 Ra4–/+) 17...Ne5 18.Nd4 (18.Ne5 Be5 19.Na4 Qd6–/+) 18...Rfe8 (18...Nc4 19.Ncb5–+) 19.Nf5 (19.Ncb5 Bb8–+) 19...Bf8 (19...Nc4 20.Nd6 Qd6 21.Nb5–+) 20.Rfd1 (20.Qc2 Nc4–+) 20...Rad8 (20...Nc4 21.Qc2–+) 21.Ne2 (21.Na4 Qc6 22.Be5 d4+=) 21...g6 (21...Ba6 22.Nf4–/+) 22.Nfd4 (22.Be5 Re5 (22...gf5?! 23.Bd4 Qd6 24.Qd3=) 23.Nfd4 Ne4–/+) 22...Bc8 (22...Nc4 23.Rab1–/+) 23.b5 (23.Nf4 Bg7–/+) 23...Bd7 (23...Bg7 24.Nf4–/+) 24.a4 Re7?? (better is 24...Nc4–/+) 25.a5 (25.Ba3 Ree8 26.a5 Qb7 27.Bf8 Rf8+=) 25...Qb8 26.b6 (26.Ba3 Neg4 27.Nf4 Re5 28.Bf8 Rf8+/–) 26...Ne8 (26...Neg4!? 27.Ng3 Ne4=) 27.Ba3+= Nc4 (27...Nd6+=) 28.Bc5 (better is 28.Be7!? Be7 29.Qc3+/–) 28...Ned6 (28...Re3! 29.fe3 Bc5=) 29.a6+= Nb6? (better is 29...Bg7+=) 30.Bb6 (30.Qb6 Qb6 31.Bb6 Ra8+–) 30...Rc8 31.a7 (better is 31.Bc5! Qc7 32.Rdc1 Re5+–) 31...Qa8 32.Rdc1 (32.Bc7 Rc7 33.Qb8 Rc8 34.Qd6 Bg4+/–) 32...Nc4+/– 33.Nf4 Ree8 (33...Be6 34.Nfe6 fe6 35.Qb5=) 34.Nd5 Qd5 35.Ra5?? (35.e4 Qe4 36.a8Q Ra8 37.Qc4 Ra1 38.Ra1+=) 35...Qb7 (better is 35...Na5 36.Rc8 Rc8–+) 36.Rc4+– Rc4 (36...Qa8 37.Bc7+–) 37.Qc4 Qb6 (37...Rc8 38.Qf1+–) 38.a8Q Qb1 39.Qf1 Qf1 (39...Ra8 40.Ra8 (worse is 40.Qb1 Ra5 41.Kf1 Bd6+–) 40...Qe4 41.Rd8+–) 40.Kf1 Ra8 41.Ra8 Kg7 42.Ra7 (42.h3 Bb4+–) 42...Bc8 (42...Bg4 43.h3 Bc8 44.Ke2+–) 43.Rc7 Ba6 44.Ke1 (44.Kg1 Bb4+–) 44...Bb4 45.Kd1 Bf1 46.g3 (46.Rb7 Bc3 47.g4 h5+–) 46...Bg2 (46...Kf6 47.Rc6 Ke5 48.Rc7=) 47.Ne6 (47.f3 h6+–) 47...Kf6 48.Nf4 (48.Rc4 Bf3 49.Kc2 Bd6+–) 48...Bf3 49.Kc2 Bd6 (49...g5 50.Kb3 Bd6 51.Rd7+–) 50.Rd7 Bb4 (50...Be4 51.Kd2 Bb4 52.Ke2 Bc6+–) 51.Nd5?? (better is 51.Kd3!?+–) 51...Ke6+/– 52.Nb4 (52.Nf6 Kf6 53.Rd4+–) 52...Kd7 53.Kd3 f5 54.Kd4 g5 (54...Ke6 55.Nd3+/–) 55.Nd3 (55.Ke5 Bg4+/–) 55...Ke6+/– 56.Ne5 Bh1 (56...Bb7 57.f3+/–) 57.f3 h5 58.f4 (58.h4 g4 59.fg4 hg4+/–) 58...gf4 (58...g4 59.Nd3+=) 59.ef4 Kf6 60.h4 (60.Kc5 Ke6+/–) 60...Bg2 (60...Ke6 61.Kc5+/–) 61.Nd7 (61.Kc4 Be4+/–) 61...Kg6 (61...Ke6 62.Nc5 Kd6 63.Nd3+/–) 62.Ke5 Be4 63.Nf8 (63.Ke6 Kh6+/–) 63...Kf7 64.Nh7 Kg6 65.Nf8 (65.Nf6 Bf3 66.Ng8+–) ½–½. marus – rock, internet, 2001.

9.Qb3 Be7 =.

9.Qb3 g6 10.d4 e4 11.Ne5 Bg7 (worse is 11...Ne5 12.de5 Qe5 13.Nd5 Qd5 14.Qd5 Nd5 15.Bh8+/–) 12.Be2 0–0 13.Nd7 (13.f3 Bh6=) 13...Bd7 14.0–0 Be6 15.a4 White intends b5 15...Qb8 (15...Bg4 16.b5 Be2 17.Ne2 ab5 18.ab5=) 16.b5 ab5 17.ab5 Ra1 18.Ra1. Kreuzer,Uwe – Morgenroth,H, corr, 1982.

9.b5 Be7=+ 10.Qc2 0–0 11.a4 h6 (11...ab5 12.Bb5 e4 13.Nd4=) 12.Ba3 Qe6 13.Be7 Qe7 14.d4 ed4 (14...b6 15.Qb3 Qd6 16.ba6=) 15.Nd4 Ne5 16.Be2 Bg4 17.Bg4 Neg4 18.0–0 (18.ba6 Ra6 19.Rc1 Ne4 20.Nd5 Qe5=+) 18...Rfc8 19.Rac1 ab5 20.Ndb5 (20.ab5!? Qc7 21.g3=) 20...Qe5=+ 21.g3 h5 (21...Ne4 22.Qb2=+) 22.Qe2 (22.h3 Nh6=) 22...Ne4 23.Ne4 Rc1 (< 23...Qe4 24.Nd6 Rc1 25.Ne4 (25.Rc1?! Qb4 26.Nf5 Ra4=) 25...Rf1 26.Qf1 de4 27.Qb5+/–) 24.Rc1 de4 25.Qc2 h4 26.Qe2 Qg5 27.Rc4 hg3=+ 28.hg3 Qh5 29.f3 ef3 30.Qf3 Qh2 31.Kf1 f5 32.Nd6 Qd2=+ 33.Rg4 Qd3 34.Kg2 Qc2 35.Kh3 fg4–/+ 36.Qg4 Rf8 37.e4 Qa4=+ 38.Nf5 Qa1–+ (39.Qe2 Qh1 40.Kg4 g6–+) 0–1. De Visser,Arno – Drent, corr Tch–NLD, 1992.

9.Rc1 b6 10.Qa4 Bb7 11.d4 e4 12.Ne5 (12.Nd2 Be7=) 12...b5 13.Qc2 Rc8 (13...Ne5? 14.de5 Qe5 15.Nb5+–) 14.Qd2 Be7 (< 14...Ne5 15.de5 Qe5 16.Nb5+=) 15.Be2 0–0 (15...Ne5 16.de5 Qe5 17.Nb5 Rc1 18.Qc1+/–) 16.Nd7 (16.0–0 Nb6=+ (< 16...Ne5 17.de5 Qe5 18.Nb5+=)) 16...Nd7=+ 17.0–0 Nb6 18.f3 ef3 19.Bf3 (19.Rf3 Nc4 20.Bc4 bc4=+) 19...Nc4 20.Qf2 Bg5 21.Nd1 Qe6 22.Rc3 f5 23.Kh1 Bf6 (23...Rfe8 24.Bc1=+) 24.Kg1 Rfe8 25.Bc1 Bg5 (25...Rc6 26.Nb2=+) 26.Bh5 g6 27.Bf3 Nd6 28.Rc5 Ne4 29.Be4 Qe4 30.Qg3 Bh4 31.Qh3 Be7 32.Rc8 Rc8 33.Bb2 Rc2 34.Re1 (34.Qg3 Bd6 35.Qh3 Bc8–/+) 34...Rd2 35.Bc1 Rd4 36.Nf2 Qe6 37.Bb2 Rd2 38.Bc3 (38.Rb1 Qc6 39.Qg3 Rb2 40.Rb2 Qc1 41.Nd1 Qd1 42.Kf2 Qc1 43.Qb8 Kg7–+) 38...Rc2 39.Bd4 Bc8 (39...Ra2 40.Qh6 Bf8 41.Qf4–+) 40.Nd3 (40.Rd1 Bd6–/+) 40...Qe4 41.Nf2 Qh4 42.Qf3 Be6 43.g3 Qh6 44.Re2 Rc1 45.Kg2 g5 46.Rd2 Bd6 47.Qe2 Bf7 (47...Rc6 48.Qf3–/+) 48.Rc2=+ (48.Rc2 Rc2 49.Qc2=+). market (2225) – pro_fessional (1650), GameColony.com, 2003.

9.Rc1 b6 10.d4 (10.Qa4 Bb7=) 10...e4 11.Nd2 Be7 12.f3 Bb7 13.b5 (13.fe4 Ne4 14.Nce4 de4=) 13...a5 (13...ef3 14.Qf3 (worse is 14.Nf3 Qe6+=) 14...0–0 15.Bd3=) 14.fe4 de4 The passed pawn on d4 will quickly become a dangerous weapon (14...Ne4 15.Nce4 de4 16.Qg4=) 15.Bc4+= 0–0 16.0–0 Bd8 17.Qe1 Bc7 (17...Rc8 18.Rf5+=) 18.Qh4 e4 seems the pivot of the position 18...Rac8 19.Bb3 Rfe8 20.Nc4 (20.Rcd1 Qe7+=) 20...Qe7 (20...Qf8 21.a4 Bd6 22.Qg5+=) 21.Qg5 (21.a4 Bd6+=) 21...h6 (21...Red8 22.a4=) 22.Qf5 Qe6 23.Qe6 Re6 24.d5 Ree8 25.d6 Bd8 26.Rcd1 (26.Na4 Re6+/–). Scholbach,Tillmann (1915) – Eman,Juan (2020), IECG, 2000.

9.Rc1 g6 10.Qa4+= Qb8? (10...Kd8!?+=) 11.Nd5!+/– Nd5? (better is 11...b5 12.Nf6 Nf6+–) 12.Be5+– N5b6 13.Bb8 Na4 14.Rc8 Ke7 15.Bd6! Kd6 16.Ra8 Nab6 17.Re8 (17.Ra7 Bg7 18.Rb7 Ra8+–) 17...Bg7 18.Rh8 Bh8 19.d4 (19...h6 20.e4+–) 1–0. Myrberg,Johnny (1700) – Andersson,Arne (1850), Kristianstad Sweden, 1990.

9.d3 Be7 10.Be2 0–0 11.0–0 b6 12.b5 a5 13.a4 h6 (13...Qe6 14.Rc1=) 14.Ba3+= Qe6 15.Be7 Qe7 16.d4 e4 17.Nd2 Bb7 18.Qb3 Rfc8 19.Rfc1 Rc7 20.Rc2 Rac8 21.Rac1 Ne8 (21...Qd6 22.Qb2+=) 22.Na2 Rc2 23.Rc2 Rc2 24.Qc2 Ndf6 25.Nc3 ½–½. Fournier,Frederic (2250) – FrenchDefense (2240), Chess.com (Team), 2013.

9.d3 Be7 10.Be2 0–0 11.0–0 b6 12.Rc1 Bb7 13.h3 h6 14.Qd2 Rfc8 15.Rc2 Qe6 16.Rfc1 b5 17.Nd1 Rc2 18.Rc2 Bd6 19.Qc1 Re8 20.Nc3 d4 21.ed4 ed4 22.Ne4 (22.Nd4? Qe5 23.g3 Qd4–+) 22...Ne4 23.de4 Qe4 24.Bd4 Ne5 25.Be5 Be5 26.Bf1 Bf4 27.Qb2 Rd8 28.Re2 Qd5 29.Qc2 Rc8 30.Qb2 Qd6 31.Qd4 Bh2! 32.Kh1 (32.Nh2 Qd4 Deflection) 32...Kf8 33.Qd6 Bd6 34.Nd2 Rc3 (34...Rc3 35.Re3 Rc2–/+) 0–1. Fournier,Frederic – CNYH (2570), Partie evaluee, 3m + 0s, 2008.

9.Be2 d4 10.ed4 ed4 –/+.

9.Be2 g6 10.0–0 (better is 10.d4!? e4 11.Ne5+=) 10...d4–/+ Black fights for the Initiative 11.ed4 ed4 12.Nd4 (12.Na2 d3 13.Re1 de2 14.Qe2 Be7 15.Nc3–/+) 12...Qd4–/+ 13.d3 (better is 13.Re1!?–/+) 13...Bg7–+ 14.Bf3 (14.Qc2 0–0–+) 14...0–0 15.Qd2 (15.Rb1 Qf4–+) 15...Ne5 16.Nd5 (16.Qe2–+) 16...Nf3 (16...Nd5?! 17.Bd4 Nf3 18.gf3 Bd4 19.Rac1–/+) 17.gf3 Qd5 (17...Nd5?! 18.Bd4 Bd4 19.Rac1–/+) 18.Qf4 Nh5 (19.Qe4 Qg5 (19...Bb2?! 20.Qd5 Nf4 21.Qe4 Nh3 22.Kg2–+) 20.Kh1 Bb2–+) 0–1. Iglesias,Ivan – Sanmartin,Borja, Delicias, 2002.

9.Qa4 Rb8

10.Qb3 Nb6 11.Rc1 Be6 12.Na4 =.

10.Qb3 Qd6 11.Rc1 g6 (11...b6!?+=) 12.Qa4+/– Rb8 13.Ne4! de4 (13...de4 14.Be5 Combination; 13...Ne4 14.Be5 Combination) 14.Be5 ef3 15.Bd6 fg2 16.Bb8?? (better is 16.Bg2 Bd6 17.d4+/–) 16...gh1Q–/+ 17.Rc8 Ke7 18.Bg3 (18.b5!? Qe4 19.Qe4 Ne4 20.ba6 ba6 21.Bc7–/+) 18...Bg7–+ 19.Rc7 Rd8 20.b5 Qe4 (20...Nd5 21.Rc2 Ne5 22.Ke2–+) 21.Bc4? (better is 21.Qe4!? Ne4 22.Rb7 ab5 23.Bb5 Ng3 24.hg3+=) 21...Nd5 22.Rb7 Qb1?? (better is 22...Qh1 23.Bf1 Rc8–+) 23.Ke2 (23.Qd1 Qf5 24.ba6 Rc8=) 23...N5b6 24.ba6 Na4 (24...Qf5 25.Qb4 Ke8+/–) 25.Rb1+= Nab6 26.Bb5 Be5 27.Be5 Ne5 28.d4 Ned7 29.Kd2 (29.e4 Ra8+/–) 29...Ra8 (29...f5 30.Bd3+=) 30.e4 (30.Bd3 Rb8+/–) 30...Ra7 (30...Nb8 31.a4=) 31.f4 Na8 (31...h6 32.a4+/–) 32.Bd7 Rd7 33.Rb7 Nc7 34.a7 Rd4?? (better is 34...Na8 35.Rd7 Kd7+=) 35.Ke3+– Rd7 (35...Ra4 36.Rc7 Ke6+–) 36.Rc7! (36.Rc7 Rc7 37.a8Q+–) 1–0. Hotak,Marian (2015) – Vesely,Tomas (2140), Tatranske Zruby SVK, Tatry Open, 2012.

10.Rc1 b5 11.Qb3 Qb7 =.

10.Rc1 Bd6 11.Qb3 Nb6 12.d4 (12.a4 Be6 13.d4 Nbd7=) 12...e4= 13.Ne5 0–0 (13...Be5? 14.de5 Ng4 15.Nd5+–) 14.f4 (14.a4 Be6 15.a5 Be5 16.de5 d4+=) 14...Bg4 (14...ef3 15.gf3 Be6 16.f4+=) 15.a4 Be6 16.Be2 Qd8 (16...Rc8 17.Rf1 Rc7 18.a5+=) 17.0–0 g6 (17...a5 18.Ba3=) 18.Ba3 Qe7 (18...Nbd7!?+=) 19.a5+/– Nbd7 20.g4 Be5 (20...Rac8 21.f5 Bf5 22.gf5 Ne5 23.de5 Qe5 24.Rf2+/–) 21.de5 (21.fe5?! Ng4 22.Bg4 Qg5=) 21...Ng4 (21...d4 22.ef6 Nf6 23.b5+/–) 22.Bg4+– Bg4 23.b5 (23.Nd5?! Qe6+=) 23...Qe6 24.Bf8 Bf3 25.Rf3 (better is 25.Rf2 Qg4 26.Kf1+–) 25...ef3= Threatening mate: Qg4 26.Kh1 (26.Rc2 d4 27.Qe6 fe6+/–) 26...Qh3 The mate threat is Qg2 27.Qb2 Nf8 28.Rg1 (28.Nd5 ab5 29.f5 Ra5 30.Ne7 Kg7 31.e6 f6+–) 28...d4 29.Nd5 de3 30.Ne3 ab5 31.Qb5 Rc8 (31...f2 32.Rg3 Qd7 33.Qd7 Nd7 34.Rf3 Ra5 35.Rf2–/+) 32.Qb2 (32.Qb7 f2 33.Rf1 Qe3–+) 32...Rc5 33.Rg3 (33.Qa3 Nd7 34.Ng4 Rc2=) 33...Qc8 34.Rf3 (34.Kg1 Ra5 35.Rf3 b5–/+) 34...Qc6 35.Kg2 Ra5 36.Ng4 Rc5 37.Kg3 Ne6 38.Qd2 h5 (38...Rc1 39.Nf6 Kh8 40.Qf2–/+) 39.Nf6 Kg7 40.Qd6 h4 41.Kg4 Rc4 (41...Rc2 42.Qb8 Nf8 43.Ne8 Kh6 44.Nd6 f5 45.ef6 Qd7 46.f5–/+) 42.Qc6 bc6 43.Ne8 Kf8 44.Nd6 Rd4 45.Kh4 Rf4 (worse is 45...Nf4 46.Kg5 Nd3 47.Rf7 Kg8 48.Rc7 Ne5 49.Nc8=) 46.Rf4 Nf4 47.Kg5 Nd5 48.e6 f6 49.Kg6 Ke7 50.Nf5 Ke6 51.Nd4 Kd6 52.Kf5 c5 ½–½. Romischke,W – Paukstadt, 1995.

10.Be2 Bd6 11.h3 (11.Rc1 0–0=) 11...0–0 (11...b5 12.Qb3 Qb7 13.Rc1=) 12.Qb3 Nb6 13.d3 (13.Rc1 e4 14.Nd4 Be5=) 13...Be6 14.Qd1 (14.d4 e4 15.Ng5 Bd7–/+) +=. Sternik,Ryszard – Kalinowski,Roman, corr T PAT–25, 1994.

10.Rc1 b5 11.Qc2 =.

10.Rc1 Be7 11.Nd5 (better is 11.Ne4! de4 12.Be5 ef3 13.Bd6 Bd6 14.gf3+/–) 11...Qd5+= (11...Nd5 12.Be5 Qe6 13.Bb8+–) 12.Bc4 b5 13.Bd5 ba4 14.Bc6 0–0 (14...e4!? 15.Be5 0–0 16.Bb8 Nb8=) 15.Ne5= Nb6 16.Bd4 Bd6 17.Nd3 Be6 18.Nc5 Exerts pressure on the isolated pawn 18...Bc8 (18...Rfc8 19.Na6 Ra8 20.b5+= (20.Bb6?? Ra6 21.Ke2 Rb6–+)) 19.0–0 (19.Bf6 gf6 20.d4 Rd8+/–) 19...Ne8 20.Ne4 f5 (20...Bf5 21.Bc5 Be4 22.Be4+=) 21.Bb6+/– Rb6 22.Ng5 (22.Bd5!? Kh8 23.Rc8 fe4 24.Be4+/–) 22...Bb7= 23.Ba4 Bd5 24.Rc8 Nc7 25.Rf8 Bf8 26.d3 h6 27.Nh3 Nb5 28.Nf4 Bf7 29.Ra1 Rb8 (29...Nc3 30.Bd7 g5 31.Nh3+=) 30.h4 (30.d4 Rc8=) 30...Rc8 31.Ne2 Nc3 32.Nc3 Rc3 33.d4 Bd6 34.Bd7 g6 35.g3 Kg7 36.h5 Bd5 37.Kf1 Rc7 38.Be8 g5 39.Ke2 Kf6 40.Kd2 Bf3 41.Rc1 Rc1 42.Kc1 f4 (better is 42...a5!?–/+) 43.gf4= gf4 44.Kd2 =. Turczynowicz,Jerzy – Nyhlen,Ove, corr SVE–Poland, 1989.

9.Rc1 Be7

10.Qa4 Qb8 11.Qb3 (11.Nd5 Nd5 12.Be5 Bd6 13.Bg7 Rg8=) 11...Qd6= 12.Be2 0–0 13.0–0 b5 14.d4 e4 15.Ne5 Ne5 16.de5 Qe5 17.Nb5 Qg5 18.Nc7 (18.h4 Qg6 19.Nc7 Bh3+=) 18...Bh3+= 19.g3 Bf1 20.Bf1 Rad8 21.Ba6 Rd6 22.Be2 Rc8 23.Kg2 Qf5 24.Nb5 Rdd8 25.Nd4 Qd7 26.Bb5 Qb7 (26...Qd6 27.Nc6+=) 27.Bc6 (27.Nc6!?+/–) 27…Qa6 +=. Buczinski,Henryk (1700) – Sternik,Ryszard (1935), Tiger Temat, 2006.

10.Na4 0–0 11.d4 e4 12.Ne5 b6= (12...a5 13.ba5 Bd8 14.Bb5 Ba5 15.Kf1 Re8 16.Nc5 Re7 17.h3) 13.Be2 Bb7 14.0–0 Rac8 15.Qb3 g6 16.h3 Qe6 17.Bc3.

10.Na4 0–0 11.Be2 a5 (11...b5 12.Nc5= e4 13.Nd4 Ne5 14.0–0 Neg4 15.g3 Ne5 16.a4 Bh3 17.Re1; 11...e4 12.Nd4 (12.Nh4 Ne5 13.Be5 Qe5 14.Nb6 Rb8 15.0–0 Qe6 16.Nc8 Rbc8 17.f4) 12...Ne5 13.0–0 Bg4 14.f3 ef3 15.Nf3 Bf3 16.gf3 Rfc8 17.Rc8) 12.ba5 (12.b5 Ng4= (12...e4 13.Nd4 Ne5 14.0–0 Bg4 15.Bg4 Neg4 16.g3 Rac8 17.Nf5) 13.h3 Nh6 14.0–0 Nf5 15.Qb3 e4 16.Nd4 Nd4 17.ed4) 12...Qe6 (worse is 12...Ra5 13.Bc3 Ra4 (13...b6 14.Ba5 ba5 15.0–0 Qa3 16.Rc3 Qa2 17.Qc1) 14.Qa4 Qa3 (14...Ne4 15.0–0 Ndc5 16.Qb4 Nc3 17.Rc3) 15.Qa3 Ba3 16.Rb1+/– (16.Rc2 e4 17.Nh4) 16...Re8 17.Bb5) 13.d4 (13.0–0 Ra5 14.Qb3 Ne4 15.d4 Bd6 16.Nb6 Nb6 17.Qb6) 13...e4 14.Ng5 (14.Nd2 Ra5 15.0–0 b6 16.Bc3 Ra8 17.Bb4) 14...Qd6 (14...Qf5 15.Nh3= g5 16.0–0 Ra5 17.Qb3) 15.0–0 Bd8 (worse is 15...Ra5 16.Bc3 Ra4 17.Qa4 Qa3 18.Qc2+=; 15...h6 16.Nh3 b6 17.Nc3) 16.Qb3 (16.a6 ba6 17.Qc2 Ne8+=; 16.Nc3 h6 17.Nb5) 16...Ba5 (16...Bc7 17.g3+= (17.f4=)) 17.Nc3 Nb8 (17...Bc7 18.f4 ef3 19.Nf3=) 18.a4 Qd7 19.Ba3 Re8 (19...Rd8 20.f3 ef3 21.Rf3 Bc3 22.Bb5+=) 20.Nb5+= h6 21.Nh3 Nc6 22.Nf4 Rd8 23.Rc2 Bb6 (23...Qf5 24.f3+=) 24.Rfc1 g5 25.Nh5 Nh5 26.Bh5 Bc7 (26...Na5 27.Qb4 Nc4 28.Be2+/–) 27.f3 (27.Nc7 Qc7 28.Bc5+/–) 27...Na5+– 28.Qb1 (better is 28.Qa2!? Nc4 29.Bg4+=) 28...Nc4+/– 29.fe4 Ra4 (29...Na3 30.Na3 Bd6 31.Qb3 de4 32.Rf1 Ba3 33.Bf7 (worse is 33.Qa3 f5+/–) 33...Kh7 34.Qa3+–) 30.ed5 (30.Bc5 A) worse is 30...Ne3 31.Nc7 Qc7 32.Bb6 Qc2 33.Rc2 Nc2 34.Qc2+– (34.Bd8?! Ra1 35.Qa1 Na1=); B) 30...b6 31.Nc7 Qc7+/–) 30...Na3 31.Na3 (31.Na3 Bd6 32.Nc4+–) 1–0. Holaus,Verena (2100) – Raijmaekers,Kees (2180), RSXE – Ostern, 2006.

10.Na4 0–0 11.h3 A) 11...g6 12.Be2 (12.d4 e4 13.Ne5 a5 14.ba5 Bd8 15.Bb5 Ba5 16.Kf1 Kg7 17.Kg1; 12.Qc2 e4 13.Nd4 b5 14.Nc5 Ra7 15.Ncb3 Bb7 16.Na5 Rc8 17.Qd1) 12...a5 13.ba5 e4 14.Nd4 Ra5 15.Bc3 Ra8 16.Bb4 Qe5 17.Qb3; B) 11...e4 12.Nd4 Ne5 13.Be2 Bd7 14.Nc5 Bc8 15.b5 Qb6 16.Na4 Qa5 17.ba6; C) 11...b5 12.Nc5 e4 13.Nd4 Ne5 14.Be2 Nc4 15.Qc2 Qc7 16.0–0 Bc5 17.bc5; D) 11...Ne4 12.Be2 (12.d3 Ng5 13.Be2 a5 14.Ng5 ab4 15.Nf3 b5 16.ab4 ba4 17.Ba3) 12...b5 13.Nc3 Bb7 14.d4 Nc3 15.Bc3 e4 16.Nd2 Bd8 17.Nb3.

10.Na4 b5 11.Nc5= A) 11...e4 12.Nd4 Ne5 13.Be2 0–0 14.0–0 Neg4 15.g3 Ne5 16.Qb3 Bh3 17.Rfd1; B) 11...h6 12.Be2 (12.d4 ed4 13.Bd4 Nc5 14.Bc5 Qd8 15.Qd4 Bc5 16.Rc5 0–0 17.Bd3; 12.h3 0–0 13.Be2 e4 14.Nd4 Ne5 15.d3 ed3 16.Bd3 Nc4 17.Bc3; 12.Nd7 Nd7 13.d4 e4 14.Ne5 0–0 15.Be2 Ne5 16.de5 Qg6 17.Kf1) 12...0–0 13.0–0 e4 14.Nd4 Ne5 15.h3 Nc4 16.Bc3 Bd8 17.Qc2; C) 11...g6 12.d4 (12.Be2 0–0 13.0–0 e4 14.Nd4 Ne5 15.h3 Bd7 16.Qb3 Rac8 17.d3; 12.Nd7 Nd7 13.d4 e4 14.Ne5 0–0 15.Be2 Bb7 16.0–0 Nb6 17.Qc2; 12.h3 0–0 13.Be2 e4 14.Nd4 Bd8 15.Qc2 Bb6 16.a4 ba4 17.Na4) 12...ed4 13.Qd4 0–0 14.Bd3 Nb6 15.0–0 Nc4 16.h3 Nb2 17.Qb2; D) 11...Rb8 12.d4 (12.Be2 0–0 13.0–0 e4 14.Nd4 Ne5 15.f3 Re8 16.Qc2 ef3 17.Nf3) 12...ed4 13.Bd4 0–0 14.Bd3 Nc5 15.Bc5 Qd8 16.Bd4 Bg4 17.h3; E) 11...0–0 12.Be2 e4 13.Nd4 Ne5 14.0–0 Neg4 15.g3 Ne5 16.Qb3 Bh3 17.Rfd1.

10.Na4 e4 11.Nd4 Ne5 (11...0–0 12.Nf5 Qe6 13.Ne7 Qe7 14.Be2 b5 15.Nc5 Ne5 16.0–0 Bf5 17.f3) 12.Be2 (12.f4 ef3 13.gf3 b5 14.f4 Nc4 15.Bc4 dc4 16.Qf3 Nd5 17.Nc3) 12...0–0 13.h3 Bd7 14.Nc5 Bc8 15.0–0 b6 16.Na4 Bd7 17.Qb3.

7.cd5 Nd5

8.Qc2 a5 9.b5 c5 =.

8.Qc2 a5 9.b5 f6 (9...Qg6 10.Qg6 hg6 11.Ne5+=) 10.d4 (10.Nc3 Nc5+/–) 10...ed4+= 11.Nd4 c5 (11...Ne5 12.bc6 bc6 13.Nd2+=) 12.Nf3+/– N7b6 13.Bd3 Bd7 14.0–0 Qe6 (14...c4 15.Bh7 0–0–0 16.Rd1+/–) 15.Rd1 Qg8 (15...a4 16.Be4+/–) 16.Nbd2+– Be6 17.Rac1 Be7 18.Nh4 Bg4 (18...g6 19.Nhf3+–) 19.Re1 g6 (19...Rd8 20.g3 Qe6 21.f3+–) 20.Nc4 (20.g3!? Nc7+–) 20...Nc4+/– 21.Bc4 (worse is 21.Qc4 Be6 22.Qc2 Rd8+=) 21...Be6 22.f4 Bf7 (22...Rd8!?+/–) 23.Qe4+– Rd8 24.Red1 Be6 (24...Kf8 25.a4+–) 25.g3 f5 26.Qf3 Nf6 27.Rd8 Bd8 28.Qb7 Bc4 29.Qc6 Nd7 30.Rd1 (30.Bh8 Bd5 31.Qa6 Qh8–/+) 30...Qe6 31.Qe6 (31.Bh8?! Qe3 32.Kh1 Bd3+=) 31...Be6 32.Bh8 Bc4 33.Rb1 Bd3 34.Rb3 Bc2 35.Rb2 Be4 36.Kf2 c4 37.Nf3 Nc5 38.Ne1 (38.Rd2 Be7 39.Rd1 Nd3 40.Ke2 Ba3+–) 38...c3 39.Re2 (39.Bc3 Na4 40.Bd4 Nb2 41.Bb2 Bd5+=) 39...Bb1 40.Kg1 (40.Nc2!? Ne4 41.Ke1 a4+–) 40...Ne4 41.Bd4 (41.a4 Be7+–) 41...Be7+/– 42.Nc2 a4 43.Rg2 Kd7 44.h3 h5 45.Be5 (45.b6 Kc6+/–) 45...Bc5 46.Kh2 (46.Bg7 Kc7+=) 46...Bb6+= 47.Re2 ½–½. van Daatselaar,J B (2200) – van Melis,A L M (2380), KE04 NBC Email, 2001.

8.Qc2 a5 9.d4 ed4 10.Bd4 ab4 11.e4 Qe7 –/+.

8.Qc2 a5 9.d4 ed4 10.Qe4 Be7 11.Qd4 =+.

8.Qc2 Qe7 9.Nc3 Nc3 10.Bc3 e4 11.Nd4 Nb6 12.d3 Nd5 13.Bb2 ed3 14.Bd3 +/–.

8.Qc2 Qe7 9.Nc3 Nc3 10.Bc3 e4 11.Nd4 Nf6 12.Bc4 a5 13.0–0 Nd5 +=.

8.Qc2 Qe7 9.Nc3 Nc3 10.Bc3 e4 11.Nd4 Nf6 (11...Nb6 12.d3 Nd5 13.Bb2 ed3 14.Bd3+/–) 12.d3 (12.Bc4 a5 13.0–0 Nd5+=) 12...Bd7= 13.Rd1 a5 (13...Rc8 14.de4 Ne4 15.Bd3 Nc3 16.Qc3=) 14.ba5+= Qa3 15.Rb1 (15.Ra1 Qe7+=) 15...Nd5= (15...Ra5 16.Rb7 (worse is 16.de4 Rc5 17.Rb3 Qa4+=; 16.Ba5?! Qa5 17.Qd2 Qd2 18.Kd2 c5+=) 16...Rc5 17.Rb8 Ke7 18.Rb3 ed3 19.Bd3+– (19.Ra3 dc2 20.Nc2 Nd5+=)) 16.Rb3 Qa4 (16...Qc5 17.Bd2 (worse is 17.de4 Nc3 18.Rc3 Qa5+=) 17...ed3 18.Qc5 Bc5 19.Rb7 (19.Rd3?! b6=; 19.Bd3?! b6=) 19...Bd4 20.ed4+/–) 17.Bd2 (17.de4 Nc3 18.Qc3 Qa5 19.Qa5 Ra5 20.Rb7 Ra2+=) 17...c5 (17...Ra5 18.de4 Nb4 19.Qb1=) 18.de4 Ne3 19.fe3 cd4 20.ed4 Qd4 21.Qd3 Qd3 22.Bd3 Bc6 23.Bb5 Bd6 24.Ke2 (24.Bc3 Bc7 25.Bc6 bc6+=) 24...Ke7 25.Bc6 bc6 26.Rb7 Ke6 27.Rf1 Rhf8 (27...Be7 28.Bc3+=) 28.Bc3+/– Be5 29.Bb4 Do you see the mate threat? 29...Bd6 30.Bd6 Kd6 31.Rbf7 Rf7 32.Rf7 g6 33.Rh7 Ra5 34.Rg7 (34.Rh6 Rg5 35.Kf3 Ke5+–) 34...Ke5 (34...g5!?+/–) 35.Rg6+– Ke4 36.Rc6 (36.Rc6 Ra2 37.Kf1+–) 1–0. Conde,Jose A – Schulz,Hans_Juergen, TT–07 TSC, 2003.

8.Qc2 Qe7 9.Nc3 Nc3 10.Bc3 e4 11.Nd4 Nf6 12.d3 Bd7 13.de4 (13.Nb3 Nd5+=) 13...Ne4= 14.Bb2 Rc8 (14...c5 15.bc5 Nc5 16.Rd1+=) 15.Bd3 c5 16.Nb5 (16.Be4!? cd4 17.Qd3 de3 18.Qe3+/–) 16...cb4= 17.Nc7 Kd8 18.Be4 Rc7 19.Qb1 f5 20.Bf3 (20.Bf5 Qg5 21.g4 Bf5 22.gf5 ba3 23.Ba3 a6+=) 20...ba3 (20...f4 21.0–0 fe3 22.ab4 ef2 23.Rf2 Qb4 24.Qf1–/+) 21.Ba3= (21.Ra3 Qb4 22.Kf1 Bb5 23.Kg1 Rc2–/+) 21...Qa3 (21...Qf6!? 22.0–0 Ba3 23.Ra3 b6=) 22.Ra3+/– Ba3 23.0–0 b6 (23...Bc5 24.Qb2+/–) 24.Rd1 Rf8 25.Qa1 (25.Qb5 Bc5+/–) 25...Bc5 26.Qg7 Kc8 27.Be2 Bb5 28.Qb2 Bc6 (28...Be2 29.Qe2 a5 30.Kf1+/–) 29.Ba6 Bb7 30.Qe2 Kb8 (30...Ba6 31.Qa6 Kb8 32.Kf1+/–) 31.Bb7 Kb7 (31...Rb7 32.Qf3+/–) 32.Qf3 Kb8 33.Qf4 (33.Kf1 a5+/–) 33...Kb7 34.Rd5 Rcf7 35.Kf1 a5 36.Ke2 (36.Qa4 f4 37.Rc5 bc5 38.Qb5 Kc7 39.Qc5 Kd7 40.Qa5 fe3 41.Qa7 Kc6 42.Qa4 Kc7 43.Qc4 Kd7 44.Qd3 Kc6 45.Qe3 Rf2 46.Qf2 Rf2 47.Kf2 Kd5+–) 36...Kc6 37.Rd2 (37.Rd1 Kb5+/–) 37...Rc7 (37...Kb5 38.Rc2+/–) 38.g3 Kb7 (38...Rff7 39.Qf3 Kb5 40.Rd5+/–) 39.Rd5 Rcf7 40.Qa4 Rc7 (40...Kc7 41.Qb5+–) 41.Rf5 (41.h4 Ka6+–) 41...Rf5 42.Qe4 Ka6 43.Qf5 Re7 (43...b5 44.Qe6 Bb6 45.f4 Rc2 46.Kd3 Rh2 47.f5+–) 44.Qd5 (44.e4 Kb5+–) 44...Kb5 (44...a4 45.e4+–) 45.e4 Kb4 (45...a4 46.f4 a3 47.e5+–) 46.Kd3 a4 47.f4 White plans e5 47...Rc7 (47...a3 48.e5+–) 48.e5 b5 (48...a3 49.e6+–) 49.e6 Be7 50.Qe5 Rc8 (50...Rc5 51.Qd4 Kb3 52.Qd7 Rc3 53.Ke4 Rc4 54.Kf3+–) 51.Qb2 Ka5 52.Qg7 Rc7 53.f5 Kb4 (53...Kb6 54.f6 Bb4+–) 54.f6 Rc3 55.Kd2 Bc5 (55...Bf6 56.Qf6 Rc8+–) 56.e7 Be3 57.Ke2 (57.Ke2 Bd4 58.e8Q+–) 1–0. bambinik (2480) – ronja (2250), internet, 2003.

8.Qc2 Be7 9.Nc3 a5 10.ba5 Ra5 11.Nd5 Rd5 Black has new hanging pawns: b7+c6 12.Bc4 White threatens to win material: Bc4xd5 12...Rc5 13.d4 ed4 14.Bd4 Rh5 15.0–0 0–0 16.h3 (16.Rfd1 Qc7+=) 16...Qh6 (16...b5 17.Be2+=) 17.Be2 (17.Rfd1 Nf6 18.Bf1 Bf5=) 17...Bd6 18.Nh2 Ra5 Black threatens to win material: Ra5xa3 19.Ng4 White threatens to win material: Ng4xh6 19...Qg6 Black threatens to win material: Qg6xc2 20.Qc3 White threatens to win material: Qc3xa5 20...Ra8 21.Bd3 f5 22.Rfd1 Kh8 23.Bc2 Bc7 24.a4 (24.Ne5 Ne5 25.Be5 Be5 26.Qe5 Be6=) 24...Nb6 (24...Ra5!?= should be considered) 25.Ne5 +/– 25...Be5 26.Be5 Nd5 27.Qc5 Qf7 28.a5 Re8 29.Bd4 Qe7 30.Qe7 Re7 31.Bc5 Rf7 32.Bd3 h6 33.Rdc1 g6 34.Bd4 Kh7 35.Be2 Nc7 36.Rcb1 Rd7 37.h4 Ne6 Black threatens to win material: Ne6xd4 38.Bc3 Nc7 39.Bc4 Nd5 40.Bd4 Nc7 41.Rd1 Nd5 42.Bb2 Kg8 (42...b5 43.ab6 Ra1 44.Ra1 Nb6 45.Bf1+/–) 43.f3 Kf8 44.Bd4 Ke8 45.Kf2 Nc7 46.Rdb1 Nd5 47.g3 Nc7 48.Rb6 Nd5 (48...Rd6 49.Ke2+/–) 49.Rb3 (49.Bd5 Rd5 50.a6 Ra6 51.Raa6 ba6 52.Rc6 Kd7 53.Rg6 Rd6 54.Rg7 Kc6+–) 49...Nc7 50.Rbb1 Nd5 (50...Ke7 51.Ra2+/–) 51.e4 fe4 52.fe4 Nc7 53.Ke3 Rh7 54.Be5 Ne6 (54...Nb5!? 55.Bb5 cb5 56.Rb5+–) 55.Rf1 +– 55...Ke7 ?? but even a better move would not have saved the game (better is 55...Rf7 56.Rf7 Kf7 57.Rf1 Ke7 58.Bf6 Ke8+–) 56.Rad1 Ke8 57.Rf6+– 1–0. henryk88 (2245) – snoopy (2245), gameknot.com, 2009.

8.Qc2 Be7 9.d4 ed4 10.Bd4 0–0 11.Bd3 g6 (11...Qh6 12.Nc3+=) 12.Nbd2 Qc7 (12...a5 13.ba5 Nc5 14.Be2+=) 13.0–0 c5 14.bc5 Nc5 15.Rac1 (15.Rfc1 b6+/–) 15...Ne6+= 16.Qb3 (16.Qb2 Qd6 17.Nc4 Qa6+=) 16...Nd4 17.Nd4 Qa5 (17...Qd6 18.Nc4 Qd7 19.Rfd1+=) 18.Nc4 Qc7 19.Be4 (19.Rc2 Be6+=) 19...Nb6 (19...Be6 20.Rc2+=) 20.Nb5+/– Qb8 21.Na5 (21.Nb6 ab6 22.Bd5 Bd7+/–) 21...Qe5 22.Bb7 Bb7 23.Nb7 Rfc8 (23...Rab8 24.Na5 Nc8 25.a4+/–) 24.Rc8 Nc8 25.Rb1 (25.Rc1 Rb8 26.Nd4 Bd6+/–) 25...a6 (25...Rb8 26.Qc2+=) 26.Nd4+/– Qc7 27.Qa4 Nd6 (27...Nb6 28.Qa5 Qb7 29.Rb6+/– (29.Qb6?! Qb6 30.Rb6 Ba3=)) 28.Nd6 (28.Na5 Nb5 29.Nac6 Nd4 30.Ne7 Qe7 31.ed4 Rd8+/–) 28...Qd6 29.g3 (29.Ra1 Rc8+/–) 29...Qa3+= 30.Qc6 Rf8 31.Rb3 Qa1 32.Kg2 Qa2 33.h4 (33.Rb6 a5+=) 33...a5 34.Rb5 Bb4 35.Re5 (35.h5 Rd8+=) 35...Qb2 (35...Qb1 36.h5+=) 36.h5+= Rb8 (36...Qc3 37.h6 Rc8 38.Re8 Re8 39.Qe8 Bf8 40.Qa8=) 37.Qd7 (37.Qf6 Bf8 38.Ra5 Bg7+/–) 37...a4 (better is 37...Qa2=) 38.Qa4+/– Bf8 (38...Kf8 39.Rb5 Rb5 40.Qb5+/–) 39.Nc6 (39.Re8 Qb6+/–) 39...Rc8 40.Ne7 Be7 41.Re7 Qf6 42.Ra7 (42.Re8 Re8 43.Qe8 Kg7+/–) 42...gh5 43.Ra5 Qc6 (43...Qg6 44.Qh4 Qc6 45.Kh2+/–) 44.Qc6 Rc6 45.Rh5 Rc4 (45...Kg7 46.g4+/–) 46.f4 Kg7 47.g4 h6 (47...f6 48.Kf3+–) 48.Ra5 (48.Kf3 Rc3+–) 48...Rb4 49.Kf3 Rb1 (49...Rb3 50.Rd5+–) 50.Rc5 Rb6 (50...Kg6 51.Rd5+/–) 51.f5 Ra6 (51...Rb1 52.e4+–) 52.Kf4 Ra4 53.e4 Kf6 54.Rd5 Rc4 55.Rd6 Kg7 56.Ke3 (56.Rb6 Ra4+–) 56...Rc3 (56...Rc1 57.e5+–) 57.Rd3 Rc1 58.e5 Re1 59.Kf4 Kf8 (59...Rf1 60.Rf3 Rb1 61.Re3+–) 60.Rd4 Rf1 61.Ke4 Re1 62.Kd5 Ke7 63.Rb4 (63.Ra4 Rd1 64.Ke4 Re1 65.Kf4 Rf1 66.Kg3 Re1+–) 63...Rd1 64.Ke4 Re1 65.Kf4 Rf1 66.Kg3 Re1 67.Rb5 Rg1 (67...Kf8 68.f6 Kg8 69.Rb8 Kh7 70.Kf4 Rf1 71.Ke4 Re1 72.Kd5 Rd1 73.Kc5 Rc1 74.Kd6+–) 68.Kf4 Rf1 69.Ke4 Re1 70.Kf3 ½–½. Buczinski,Henryk (2200) – Slezak,Robert (2155), BI–2010–F–00003, 2011.

8.Qc2 Be7 9.d4 ed4 10.Bd4 0–0 11.Bd3 Qh6 12.0–0 Bf6 13.Nc3 Bd4 14.ed4 Nf4 15.b5 cb5 16.Rfe1 Nf6 17.Ne5 a6 18.Be4 Rb8 19.Rad1 Re8 20.f3 Be6 21.d5 Bc8 22.Nd3 Nd3 23.Qd3 Bd7 24.d6 Ne4 25.Ne4 b6 26.Rc1 Kf8 27.Qd5 f5 28.Nd2 Rbd8 29.Nf1 Re1 30.Re1 Qf6 31.Kh1 Rc8 32.f4 h6 33.Rd1 Qe6 34.Qd4 Qb3 35.Rd3 Qc4 36.Qe3 Re8 37.Qd2 Re4 38.Ng3 Rf4 39.Qe3 Rf2?? 40.Kg1?? Ra2 41.Ne2 Qc2 42.Kf2 b4 43.ab4 Qe2 44.Qe2 Re2 45.Ke2 Bb5 (46.d7 Bd3 47.Kd3 Ke7–+) 0–1. Baensch,Hans (1880) – Lisakowski,Christof (1960), RSS7E adv–13, 2005.

8.Qc2 Be7 9.d4 ed4 10.Bd4 a5 (10...Bf6 11.Nc3+=) 11.ba5 (11.Bg7 Rg8 12.Bb2 Qg6 13.Qg6 Rg6 14.ba5 Ra5+=) 11...0–0+= 12.Nbd2 Qh6 (12...Ra5? 13.Nc4 Qc7 14.e4+–) 13.Nc4 Re8 14.Be2 Nc5 15.0–0 Qh5 (15...Ne6 16.Be5+/–) 16.Rfd1 Bg4 17.Rac1 (17.Nb6 Nb6 18.ab6 Ne6+=) 17...f6 (17...Ne6 18.Rb1 Nd4 19.Nd4 (19.ed4?! Ra7=) 19...Be2 20.Ne2+/–) 18.Qb2 Rab8 (18...Ra7 19.Rd2+/–) 19.h3 Be6 20.Ncd2 Nc7 (20...b6 21.Qc2 Nb7 22.Bb6 (22.Qc6?! Ba3 23.Ra1 Na5+/–) 22...Nb6 23.ab6 Ba3 24.Nd4+–) 21.Bc5 Bc5 22.g4 Qh3 23.Rc5 Qg4 24.Kf1 Bd5 25.Bc4 Qh3 (25...Ne6 26.Rd5 (26.Bd5?! Qh3 27.Ke1 cd5+=) 26...cd5 27.Bd5+/–) 26.Ke1 Kh8 27.Bf1 (27.Bd5 Nd5 28.Qd4 Ne3 29.fe3 Qh1 30.Ng1 Qg1 31.Nf1 Re6+/–) 27...Qh5 28.Nd4 Qh4 (28...Re3 29.fe3 Qh4 30.Ke2 Qh5 31.Kd3 Qd1 32.e4+–) 29.Qc3 (29.Be2 Re3 30.Nc4 Rh3+=) 29...Qh1 (29...Re3!? 30.Qe3 Re8 31.Qe8 Ne8+/–) 30.Qc2+– Rbd8 31.Rb1 Na6 32.Rc3 Bg2 33.N4b3 Bd5 34.Qf5 Bg2 (34...Re5 35.Qf4+–) 35.Ke2 Rd5 36.Bg2 Qg2 (36...Rf5?? 37.Rh1 Rfe5 38.Nc4+–) 37.Qf4 Qg6 (37...Qh3 38.Nc4+–) 38.Kf1 (38.Rh1 c5+–) 38...Rf5 39.Qh2 Rh5 40.Qg2 Rg5 41.Qh1 Rh5 (41...Nc7 42.Nc1 Rd8 43.Rb7 Rd2 44.Rc7–/+) 42.Qf3 Rf5 43.Qd1 Rh5 44.Ke1 Nc7 45.Qf3 Nd5 46.Rc4 (better is 46.Rcc1 Rf5 47.Qh1+=) 46...Rg5?? (46...Rf5 47.Qh1 Ne3+=) 47.e4 (47.Nc1 Rg1 48.Ke2 Ne3 49.fe3 Rg3+=) 47...Rf5 (47...f5 48.Nc5 fe4 A) worse is 49.Re4 Nf6 50.Rb7 Rc5 51.Re8 Qe8 52.Kf1 Rd5+= (52...Ra5?! 53.Qg3 Nh5 54.Qb8=); B) 49.Nce4 Rg1 50.Ke2 Rb1 51.Nb1=) 48.Qd3+– Qg1 49.Qf1 Qg4 50.Rcc1 Rf3 51.Nf3 Re4 (51...Qe4 52.Kd2 Qf4 53.Kc2 Qf3 54.Rb2+–) 52.Kd2+– Qf3 53.Rb2 Re5 (53...Nf4!? 54.Re1 Re1 55.Qe1 Qd5 56.Kc2 Qf5 57.Kd1 Qh5 58.f3 Qf3 59.Kc2 Qd3 60.Kc1 h6+/–) 54.a6+– ba6 White gets strong play along the open b–file 55.Nd4 Do you see the mate threat? 55...Qf4 56.Kc2 Re3 (56...Re8 57.Qd3 c5+–) 57.Nc6 Qf5 (57...h6 58.Rb8 Kh7 59.Kb2+–) 58.Kd2 Threatening mate: Rb8 58...Re8 59.Rb3 Nf4 60.Qa6 (60.Qc4 Nd5 61.Rf1 Qg5 62.Kd1 Qh5 63.Kc1 Qg5 64.Kb2 Qd2 65.Ka1 h6+–) 60...Qg5 (60...Qd5 61.Kc2+–) 61.Re3 (61.Qb5 Nd5 62.Kc2 Qh5+–) 61...Rg8 (61...Ng2 62.Rc5 Qf4+–) 62.Qb6 Ng2 63.Nd8 Qh5 (63...Qd5 64.Rd3 Qg5 65.Kc2+–) 64.Rc5 Qg6 65.Qc7 h6 66.Nf7 Kh7 67.Rh3 Qb1 (67...Nf4 68.Qf4 Qf7 69.Rh6 gh6 70.Rc7 Qc7 71.Qc7 Rg7 72.Qg7 Kg7 73.a4+–) 68.Nh6 Qb2 69.Kd1 Qd4 70.Kc2 Ne1 71.Kb1 Qe4 72.Ka1 Qd4 73.Rcc3 (73.Rcc3 Qd1 74.Ka2 Qd5 75.Kb1 Qe4 76.Ka1+–) 1–0. bambinik (2465) – PAKlady (2605), 2003.

8.Qc2 Qg6 9.Qg6 hg6 (worse is 9...fg6 10.Ne5 Ne5 (10...N5b6 11.Be2 Ne5 12.Be5 Be6 13.Bd4 Nd5 14.Nc3 Nc3) 11.Be5+/– Be6 12.Nc3 Kf7 13.Ne4 h6 14.f3 Be7) 10.Ne5 (10.Nc3 N5f6 (10...f6 11.d4 Nc3 12.Bc3 ed4 13.Nd4 Nb6 14.0–0–0 Kf7) 11.Rb1 b5 12.d4 ed4 13.Nd4 Bb7 14.Be2 a6) 10...Ne5 (10...a5 11.b5 Ne5 12.Be5 Bf5 13.Nc3 f6 14.Bd4 Nc3) 11.Be5 f6 (11...Bf5 12.Nc3 f6 13.Bd4 Bd6 14.e4 Rh4) 12.Bg3 Kf7 (12...Be6 13.Be2 Kf7 14.e4 Nb6) 13.e4 Nb6 14.Nc3 Be6 15.d4 Rd8 16.Rd1 Bd6 17.Be2 (17.h3 Bg3 18.fg3 Rd6=) 17...Bg3= 18.fg3 Bb3 19.Rd2 Bc4 20.Bf3 Bb3 21.Ne2 a5 22.ba5 Nc4 23.Rd3 Na5 24.d5 f5 25.0–0 Kf6 26.Rf2 (26.Re3 Rhe8 27.dc6 bc6+=) 26...cd5 27.ed5 Rhe8 28.h4 Bc4 29.Rd1 Re3 30.Nf4 White prepares the advance h5 30...b5 31.g4 Ra3 32.Re1 Rd6? (better is 32...Nb3+=) 33.g5+– Kf7 34.h5 Nb3 (34...Kg8+–) 35.hg6 Kf8 36.Ne6 Re6 37.Re6 (37.de6?! Ke7 38.Bg4 Nd4 (38...fg4?? 39.Rf7 Kd6 40.Rd7 Kc5 41.e7+–) 39.Bf5 Ra5+–) 37...Nd4 38.Re5 Ra8 (38...Ra6 39.Bh5 Ra2 40.Ra2 Ba2 41.Kf2+–) 39.Rd2 Nf3 (39...Ra1 40.Kh2 Nb3 41.Rf2+–) 40.gf3 Re8 (40...b4 41.d6 Bb5 42.Rb5 Ra1 43.Kh2 Re1 44.d7 Re8 45.de8Q Ke8 46.Re5 Kf8 47.Rd8) 41.Rf5 Ke7 42.Rf7 Kd6 43.Rg7 1–0. Marre (2185) – Teaser3001 (2170), Rated game, 5m + 0s, 2010.

8.Nc3 a5 9.Nd5 Qd5 10.Qc2 ab4 11.Bc4 Qc5 12.ab4 Ra1 13.Ba1 Qe7 14.b5 c5 15.d4 cd4 16.0–0 Nb6 17.ed4 e4 18.Ne5 f6 19.Nf7 Nc4 20.Nh8 (20.Qc4? Be6 21.d5 Bf7–+ (21...Kf7?! 22.de6 Qe6 23.Qc7 Qe7 24.Qc8=; 21...Qf7? 22.de6 Qe7 23.Qc8 Qd8 24.Qb7+–)) 20...Be6 21.Qd1 Qd7 22.Qa4 Bd6 23.Rc1 Qc7 24.Qd1 (better is 24.b6 Qc6 25.Qc6 bc6 26.b7+/–) 24...Bh2= 25.Kh1 Qf4 26.Qh5 g6 27.Qh7 Qc1 (27...Qf2?? 28.Qh2 Qd2 29.Rf1+–) 28.Kh2 Qf4 ½–½. Caissa – flipper, playchess.de, 2004.

8.Nc3 Be7 (--> 7.Nc3 Be7 8.cd5 Nd5).

8.Bc4 a5 9.b5 =.

8.Bc4 e4 9.Nd4 =+.

8.Bc4 f6 9.d4 e4 10.Nfd2 f5 11.Qb3 (11.Nc3 N7b6=) 11...N7f6 12.Nc3 Be7 13.b5 Be6 14.f3 (14.bc6 Qc6 15.Bb5 Nf4 16.Bc6 bc6+–) 14...Bd7 (14...ef3 15.gf3 0–0 16.bc6 bc6 17.Rb1=+) 15.fe4 fe4 (15...Ne3 16.Bf7 Kd8 17.e5 Qd4 18.Ncb1 Ng2 19.Kf1 Qf4 20.Kg2+=) 16.Nd5 (better is 16.Nde4 Ne4 17.Ne4+/–) 16...Nd5 (better is 16...cd5 17.Be2 0–0=+) 17.Ne4+/– (17...Qe6 18.bc6 Bc6 19.Qd3+=). Andersson,Lars H – Karlgren,Lars Ake, corr SSKK 2–99, 1988.

8.d4 e4 9.Nfd2 N7f6 10.Nc3 Bf5 11.Qb3 Be7 12.Bc4 0–0 13.b5 (13.g4 Nc3 14.gf5 Ncd5+=) 13...Nc3 (13...Rfd8 14.a4+=) 14.Bc3= (worse is 14.Qc3 cb5 15.Bb5 a6–/+) 14...cb5 (14...b6 15.bc6 Qc6 16.Rc1=) 15.Qb5+= Qd7 16.0–0 (16.Qd7!? Bd7 17.Bb4 Bb4 18.ab4=) 16...Qb5= 17.Bb5 Rac8 (17...a6 18.Be2+=) 18.Rfc1 (18.Bb4 Bb4 19.ab4 a6=) 18...Be6 (18...a6 19.Be2+=) 19.Bb4= Bb4 20.ab4 a6 21.Bc4 Bc4 22.Nc4 Nd5 23.Nd6 Rc1 24.Rc1 f5 (24...b5 25.Ne4 Nb4 26.Kf1=) 25.Nb7 (25.b5!?+=) 25...Nb4= 26.Ra1 Rf6 27.Nc5 The isolani on a6 becomes a target 27...Kf7 28.Kf1 Ke7 29.Rb1 Rb6 30.g4 g6 (30...fg4!? 31.Ne4 a5=) 31.Na6 Nd5 (31...Ra6 32.Rb4 h6 33.gf5 gf5 34.Rb5+/–) 32.Rb6 Nb6 33.Ke2 Nd5 34.Nc5 Kd6 35.h3 (35.g5 Nc3 36.Kd2 Nd5+/–) 35...h6 36.Kd2 (36.f3 Nc3 37.Ke1 ef3 38.gf5 gf5+/–) 36...h5 37.Na4 (37.g5 h4+/–) 37...h4 (better is 37...fg4 38.hg4 Nf6+=) 38.Nc3?? (38.g5 Nc7 39.Nc5 Nb5+/–) 38...Nf6?? (38...Nc3 39.gf5 Nb1 40.Kd1 gf5 41.Kc2 Na3 42.Kc3 Nb5 43.Kd2–+) 39.Kc2?? (39.gf5 gf5 40.Ke2 Nh7+/–) 39...Nh7?? (better is 39...fg4 40.hg4 h3–+) 40.Ne2?? (40.gf5 gf5 41.Ne2 Ng5+/–) 40...Ng5 (40...fg4 41.hg4 Nf6 42.Ng1 Ng4 43.Nh3–/+) 41.Nf4 (41.gf5 gf5 42.Nf4 Nf3+/–) 41...Nf3 (better is 41...fg4 42.hg4 h3+=) 42.Kc3?? (42.gf5 gf5 43.Ng6 Kd7+/–) 42...Ng1?? (better is 42...fg4 43.hg4 Ng1–+) 43.Kb4?? (43.g5 Nf3+/–) 43...Nf3 (better is 43...fg4 44.hg4 h3 45.Nh3 Nh3–+) 44.Kb5?? (44.gf5 gf5 45.Kc4 Nd2 46.Kb5 Nf3+/–) 44...Ne1?? (44...fg4 45.hg4 Ng1 46.f3 ef3 47.Nd3–+) 45.Kb4?? (45.g5 Nf3+/–) 45...Nc2?? (45...fg4 46.Ng6 gh3 47.Nh4 Ke6 48.d5 Kf6–+) 46.Kc4+= Ne1 (46...fg4 47.hg4 Ne1 48.Ng6=) 47.Ng6 (better is 47.g5!?+/–) 47...Nf3?? (47...fg4 48.hg4 Ng2 49.Nh4 Nh4+–) 48.Kb4 (better is 48.gf5 Nd2 49.Kb5+–) ½–½. Kuhlmann – van der Vaart, corr, 1986.

8.e4 Nf4 9.d4 Ng6 (9...Qg6 10.Nbd2=) 10.Nbd2 (10.de5 Nde5 11.Ne5 Ne5 12.Qd6 Bd6=) 10...ed4 11.Nc4 (11.Bd4 Nf4+=) 11...Qc7 (11...Qe6 12.Qd4 c5 13.bc5 Bc5 14.Qg7+=) 12.Nd4+= Nde5 13.Ne5 Ne5 14.Be2 a5 (14...Be7 15.0–0+=) 15.Qd2 (15.b5 c5 16.Nc2 f6+=) 15...ab4= 16.ab4 Ra1 17.Ba1 Qb6 (17...Ng6 18.b5=) 18.Nc2 f6 (18...Qc7 19.0–0+=) 19.Be5 (19.0–0 Qc7+=) 19...fe5 20.Bc4 Qd8 21.Qd8 (21.Qe2 Qg5 22.0–0 Bd6+=) 21...Kd8= 22.Ke2 Bd6 23.f3 (23.Ra1 Ke7=) ½–½. Kuhlmann – van der Vaart, corr, 1986.

8.Qc2 g6

9.d4+= ed4 10.Nd4 N5f6 (10...N7f6 11.Nc3 Bg7 12.Nd5 Qd5 13.Be2+=) 11.Nc3 Bg7 12.Be2 0–0 13.Rd1 Qe7 14.0–0 Rd8 15.Rfe1 Nf8 16.Bc4 Be6 17.Ne6 Ne6 18.Ne2 Rd1 (18...Ng4 19.Bg7 Kg7 20.Qc3 Qf6 21.Qf6 Kf6 22.Be6 fe6 23.Rd4=) 19.Qd1 (19.Rd1 a5 20.ba5 Ra5+=) 19...Rd8 20.Qb1 (20.Qc2 Ng4 21.Be6 fe6 22.Bg7 Kg7= (worse is 22...Qg7 23.Qc4 Nf6 24.Qe6 Qf7 25.Qe5+/–)) 20...Ng4 21.Be6 Qe6 22.Bg7 Kg7 23.Nd4 Qe5 24.Nf3 Qc3 25.a4 Ne5 26.Ne5 (26.Nd4 Re8=) 26...Qe5 27.b5 (27.Qc2 Qd6 28.Qc3 Kg8=) 27...c5 (27...cb5 28.ab5 Rd2 29.Qa1=) 28.Qc2 b6 29.Rc1 Qd5 30.h3 Qd2 31.Qc4 Qd3 32.Qa2 Rd5 33.a5 Qd2 34.Rc2 Qd1 35.Kh2 Rd7 36.a6 Qd6 37.g3 Qe5 38.Rc4 Rd1 39.Rf4 Qd5 40.Qb2 Kg8 41.e4 Qd4 (41...Qe6 42.Qe2 Rd4 43.Qf3=) 42.Qb3 Qd7 43.Kg2 Rd4 44.Qf3 c4 (44...Qb5 45.Rf7 Qe8 46.Ra7 Qe4 47.Qe4 Re4 48.Rb7+–) 45.Rf6 Qb5 (better is 45...Rd3 46.Qf4 Qe8+= (46...Qb5 47.Rf7 Rd7 48.Rf8 Kg7 49.Qf6 Kh6 50.Rg8+–)) 46.Rf7+– Rd7 (46...Qe8 47.Ra7 Qe4 48.Qe4 Re4 49.Ra8 Kf7+–) 47.Rf8+= Kg7 48.Qf6 Kh6 49.h4 (49.h4 c3 50.Rg8+– (50.Qc3 Rd1 51.Qf3 Qf1 52.Kh2 Qg1 53.Kh3 Qh1 54.Qh1 Rh1 55.Kg4 Ra1+–)) 1–0. Badkarma – Bibersmoelf, playchess.de, 2002.

9.d4+= Bg7

10.Nbd2 ed4= 11.Nd4 (11.Qe4 Qe7=) 11...0–0 12.Be2 Re8 (12...Qe7 13.0–0=) 13.0–0 Qe7 14.N2f3 (14.Nc4 Ne5=) 14...Ne5 (14...a5 15.h3+=) 15.Rfe1 (15.Rac1 Bd7=) 15...a5+= 16.ba5 Ra5 17.Nb3 Ra8 18.Ne5 Be5 19.Be5 Qe5 20.Bf3 Qd6 (20...Bf5 21.Qc4+=) 21.Red1 (21.Qc5 Qc5 22.Nc5 Nc3=) 21...Ra3+= 22.Ra3 (22.Qb2 Ra1 23.Qa1 Qe5+=) 22...Qa3 23.Bd5 cd5 24.Rd5?? (better is 24.Nd4+=) 24...Be6–+ 25.Rb5? (25.Qd1 Bd5 26.Qd5–+) 25...Rc8 26.Nc5 (26.Qd2 Bb3 27.h4 Rc1 28.Kh2 Rd1–+) 26...Qa1 (26...Qa1 27.Qb1 Qb1 28.Rb1 Rc5–+) 0–1. Carzolio,Luigi (1810) – Masullo,Andrea (1835), Festival, 2000.

10.e4 Ne7 11.de5 Ne5 12.Nbd2 0–0?? (better is 12...Be6+=) 13.Be5+– Be5 14.Nc4 (14.Ne5?! Qe5 15.Rd1 Bg4=) 14...Qf6 15.Nce5 (15.Nfe5?! b5 16.Rd1 Be6+–) 15...Bg4 (15...g5 16.Qc3+–) 16.Rd1 (16.Ng4?! Qa1 17.Qd1 Qc3 18.Nd2 Qa3+=) 16...Rad8 (16...Bf3 17.Nf3 Rfd8+–) 17.Ng4 (17...Rd1 18.Kd1 Rd8 19.Ke2+–) 1–0. MrkT – AntoniusBlock, internet, 2005.

10.e4 Nf4 11.Nbd2 ed4 12.Nc4 =.

10.de5 Be5? 11.Ne5 Ne5 12.Qe4 +–.

10.de5 Ne5? 11.Ne5 Bf5 12.Nc4 +–.

10.de5 Qe7 11.b5 cb5 12.Bb5 0–0 +=.

10.de5 Qe7 11.Nc3 Ne5 12.Nd5 cd5 13.Ne5 Be5 14.Bb5 Kf8 15.Be5 Qe5 +=.

8.Nc3 Nc3

9.dc3 Qd1 10.Rd1 Be7 11.c4 (11.e4!?+=) 11...f6+= 12.c5 Nf8 (12...a5 13.Bc3=) 13.Be2 (13.Kd2 a5+=) 13...Be6= 14.0–0 Ng6 15.Nd2 Kf7 (15...0–0–0 16.g3=) 16.Bc4 (16.f4 ef4 17.ef4 Nh4+=) 16...b6 (16...Rhd8 17.Be6 Ke6 18.Nc4=) 17.cb6 (17.f4 Bc4 18.Nc4 ef4 19.ef4 bc5+/–) 17...ab6= 18.f4 Bc4 19.Nc4 ef4 20.ef4 b5 21.Na5 c5 22.Nc6 Rhc8 23.Ne7 Ne7 24.Rd7 Rd8 (24...Kf8 25.bc5 Rc5 26.Re1=) 25.Rb7+= Rd2 (25...cb4 26.Re1 Re8 27.ab4+=) 26.Bc1 (26.Re1 Rb2 27.Ree7 Kg6+/–) 26...Re2 (26...Rc2 27.bc5 Rc5 28.Be3+=) 27.bc5+/– Ra5 28.c6 (28.Rd1 Ra4+/–) 28...b4+= 29.Rb4 Rc5 (29...Nc6 30.Rc4 Ne7 31.Rd1+=) 30.Rb2+/– Re4 31.Bd2 Nc6 (31...Rc6 32.Rb7+/–) 32.Re1 (32.Rb7 Kg6+/–) 32...Re1 33.Be1 Rc4 34.Bd2 Ra4 35.Rb7 Kg6 36.g4 (36.Rb3 Nd4 37.Rb4 Rb4 38.Bb4 Ne2 39.Kf1 Nf4+=) 36...h6 (36...f5 37.Rb6 Rc4 38.h3+=) 37.f5+/– Kh7 38.Bb4 Nb4 39.ab4 (39.Rb4?! Ra3 40.Kg2 h5=) 39...Ra2 40.h3 (40.b5 Ra4 41.h3 Rb4+/–) 40...Rb2 41.b5 h5? (better is 41...Rb3+=) 42.g5!+– fg5 43.f6 Kg8 44.Rg7 Kf8 45.Rg5 (45.Rb7 Rb1 46.Kf2 Rb4+–) 45...h4= 46.Rf5 Kf7 47.Kf1 Rh2 48.Rf2 Rh3 49.Rb2 Re3?? (better is 49...Rf3 50.Kg2 Rg3 51.Kh2 Kf6=) 50.b6+– h3 (50...Re8 51.b7+–) 51.b7 h2 52.Rh2 (52.Kg2 Rh3 53.Kh1 Rh8+–) 52...Rb3 (52...Re8 53.Rb2+–) 53.Rh8 1–0. Saradjen,Janko – Kariz,Peter, Sk. Loka SLO/chTz1, 1998.

9.dc3 e4 10.Qd6 Bd6 11.0–0–0 (11.Rd1 Be7 12.Nd4 Ne5 13.f3 f5 14.Be2 a5 15.Rf1=; 11.Nd2 Nf6 12.c4 Bf5 13.f3 ef3 14.gf3 Be7 15.e4+=) 11...Be7 12.Nd2 f5 (12...Nf6 13.c4 Bf5 14.f3 ef3 15.gf3+=) 13.Nc4 (13.c4 Nf6 14.c5 b6 15.cb6=) 13...0–0 (13...Nf6 14.Be2 0–0 15.Nd6=) 14.Be2 (14.Nd6 Ne5 15.c4=) 14...Nb6 (14...Rf6 15.Rd2=) 15.Nb6 ab6 16.Bc4 Kh8 17.Rd4 b5 18.Ba2 b6 19.Rhd1 h6 20.g3 Kh7 21.h4 h5 (21...c5 22.R4d2=) 22.R4d2 Ra7 23.Kc2 g6 24.Bb3 Re8 25.c4 bc4 26.Bc4 b5 27.Bb3 f4 28.ef4 Bf5 29.Kc1 Rc8 30.Bc2 (30.Rc2 c5 31.Rd5 c4=) 30...c5 31.bc5 Rac7 (31...Bc5 32.Kb1=) 32.Kb1 Rc5 33.Rc1 Rc4 34.Re2 b4 35.ab4 Bb4 36.Ka2 Bf8 37.Kb1 Rb4 38.Bd1 Rcb8 39.Rc7 Kh6 40.Kc1 Rb2! 41.Rb2 Ba3 42.Rcc2 e3 (42...e3 43.fe3 Bc2 44.Bc2 Rb2–+) 0–1. Buczinski,Henryk – Ritsema,Ronald, corr, 2004.

9.dc3 Qg6 =.

9.Bc3 e4 10.Nd4 =.

9.Bc3 Be7 10.Qc2+= 0–0 11.d4 ed4 12.Bd4 Bf6 (12...a5 13.Bd3+=) 13.Rd1 Bd4 (13...Qe7 14.Bd3 h6 15.0–0+=) 14.Rd4 Qf6 (14...Qe7 15.Bd3 Nf6 16.0–0+=) 15.Bd3+/– h6 16.0–0 Ne5 17.Ne5 Qe5 18.Rd1 (18.Qc5 Qc5 19.bc5 Re8+=) 18...Be6 19.Bh7 Kh8 20.Be4 Qf6 (20...f5 21.Bf3+=) 21.Qc5 Rfd8 (21...Rfe8 22.R1d2+/–) 22.Qa7 Bd5 (22...Ra7?? 23.Rd8 Qd8 24.Rd8) 23.Qb6 (23.Rd5?? cd5 (23...Ra7?? 24.Rd8 Qd8 25.Rd8) 24.Qb7 de4–+) 23...Ra3 24.Bd5 (24.Bf3 Qe7+/–) 24...Rd5 25.Rd5 (25.Qb7?! Rd4 26.ed4 Qd4 27.Qc8 Kh7 28.Qf5 Kg8=) 25...cd5 26.Qf6 gf6 27.g4 (27.h4 Rb3 28.Rd4 f5+/–) 27...Rb3 (27...Ra4 28.Rd4+/–) 28.Rd4 Kg7 29.Kg2 (worse is 29.Rd5 Rb4 30.h3 Rb1 31.Kg2 b5+=) 29...Kg6 (29...f5 30.gf5 Kf6 31.Kf3+/–) 30.Kg3 Rb2 (30...f5 31.gf5 Kg5 32.Kf3+/–) 31.h4 (31.h3+/–) 31...h5 (31...f5 32.h5 Kg7 33.gf5+/–) 32.gh5 (32.Rd5 hg4 33.Rb5 f5+–) 32...Kh6 33.Rf4 (33.f4 Rb3 34.Kg4 b6+–) 33...Kh5 34.Rf6 Rb4 35.Rf7 Rg4 36.Kf3 Rh4 37.Rf5 Kg6 38.Rd5 Rh8 (38...Rb4 39.e4+/–) 39.Rb5 Rb8 (39...Rf8 40.Ke2+–) 40.Ke4 (40.e4 Kf6+–) 40...Kf6 (40...Re8 41.Kd4 Rd8 42.Ke5+–) 41.f4 Ke6 (41...b6 42.Kf3+–) 42.f5 Kd6 43.Kd4 (43.f6 Kc6 44.Rb3 b5+–) 43...Kc6 44.Rc5 Kd6 (44...Kd7+–) 45.e4 b5 (45...Ke7 46.e5 Rf8 47.Ke4+–) 46.e5 Kd7 47.e6 Ke8 (47...Ke7 48.Rc7 Kd6 49.Rd7 Kc6+–) 48.f6 b4 (48...Kf8 49.Rh5 Kg8+–) 49.Rh5 1–0. Lalic,Susan K (2320) – Giaidzi,Aspasia (2060), Athens schev (Women), 1992.

8.Bc4 Be7

9.Qb3 0–0 10.e4 (10.Nc3 N5b6+=) 10...Nf4 11.g3 Nh3 (11...Ng6 12.d4+=) 12.d4 ed4 13.Bd4 Bf6 14.Qe3 Re8 15.Nc3 a5 16.b5 Bd4 17.Nd4 Nb6 (17...Ne5 18.Be2+=) 18.Ba2= Bg4 19.f3 Rad8 (better is 19...Bd7!?=) 20.Nde2+/– (20.fg4?! Qd4 21.Qd4 Rd4+=) 20...Nd5 21.Bd5 cd5 22.fg4 d4 23.Nd4 Qd4 24.Qd4 Rd4 25.Ke2 Ng5 Increasing the pressure on the isolated pawn on e4 (25...Rc8 26.Ke3 Rdc4 27.Nb1=) 26.Ke3 Rc4 27.Kd3 Rec8 28.Nd5 Re4 29.Rhe1 Rce8 30.Re4 Ne4 31.Kd4 (31.Rf1 Kf8=) 31...Nd2 (31...Nf2 32.g5=) 32.Rd1+= Re2 (32...Nf3 33.Kc5+=) 33.h3 (33.Nf4 Nf3 34.Kc5+/–) 33...Ne4 (33...h6 34.Kc5+=) 34.Nf4 (34.Kd3 Ng3 35.Rg1 Ra2 36.Rg3 Ra3 37.Nc3 h5+–) 34...Rd2 35.Rd2 Nd2 36.Ne2 (36.Nd3 a4+=) 36...b6 (36...Kf8!?+/–) 37.Nc3 (37.Nc3 Nf1 38.Kd5+–) 1–0. Diener,Rudolf – Kurbasov,Sergey Alexandrovic, corr ICCF WT–M–GT–21, 1975.

9.Qb3 e4 10.Nd4 Ne5 11.0–0 =+.

9.Qc2 0–0 =.

9.Qc2 N5b6 =.

9.Nc3 0–0 10.Qb3 N5b6 11.Ne4 (11.d3 Nc4 12.dc4 Qe6+=) 11...Qg6–/+ 12.Ng3 Nc4 (12...e4 13.Ne5 Ne5 14.Be5+=) 13.Qc4 Nb6 (13...a5 14.0–0 (14.Be5? ab4 15.d4 b5–+) 14...Nb6 15.Qc3+=) 14.Qb3 (14.Qa2 e4 15.Ne5 Qg5=) 14...Be6+= 15.Qd1 f6 16.Qb1 a5 (16...Qf7 17.0–0+=) 17.ba5 Nc4 (17...Ra5 18.Bc1 Ra6 19.Qg6 hg6 20.d4–/+) 18.Qg6 (18.Bc3 A) worse is 18...Ba3 19.d3+/– (19.Qb7?! Na5 20.Ba5 Ra5=); B) 18...Na5 19.Ba5 Ra5 20.Qb7 Ba3 21.Qc6 Bd5=) 18...hg6+= 19.Bc3 Na5 (worse is 19...Ba3 20.d3 Nd6 21.d4+/–; 19...Na3?! 20.Ke2+=) 20.0–0 (better is 20.d4!?+=) 20...Nb3–+ 21.Ra2 (21.Rab1 Ra3 22.d4 ed4 23.ed4 Kf7–+) 21...Ba3 22.Ra3 Ra3 23.Bb4 Ra4 24.Bf8 Kf8 25.Ne2 (25.d3 b5–+) 25...Ra2 26.Nc3 Rc2 27.Ne4 (27.Rd1 Bg4–+) 27...Bd5 28.d3 Be4 29.de4 b5 (29...Nc5 30.Nh4–+) 30.h3 (30.Rd1 c5–+) 30...b4 (30...Nc5 31.Nh4–+) 31.Nh4? (31.Rb1 Rc3–+) 31...Kf7 (31...Nd2 32.Ra1 b3 33.Ra8 Kf7 34.Ra7 Ke6 35.f3–+) 32.f4 (32.Rb1 Rc1 33.Rc1 Nc1 34.Nf3–+) 32...ef4 33.ef4 Nc5 34.Rb1 (34.f5 b3 35.fg6 Kf8 36.Rd1–+) 34...b3 35.Nf3 b2 36.Kh2 Ne4 37.Nd4 Nc3 (37...Rd2 38.Nf3 Rf2 39.Kg1–+) 38.Nc2 Nb1 39.Nb4 (39.Kg3–+) 39...Nc3 40.Nc6 0–1. Buck,Klaus_Michael (1815) – Knors,Rudi (2120), Open Internazionale, 2010.

9.Nc3 0–0 10.Qc2 a5 11.ba5 Ra5 =.

9.Nc3 0–0 10.Ne4 Qg6 Black launches an attack 11.0–0?? (better is 11.d3=) 11...Qe4–+ 12.d3 Qg6 13.Ne5 Ne5 14.Be5 Bf6 15.Bf6 Nf6 (worse is 15...gf6 16.Qf3–+) 16.d4 Bh3 Threatening mate... how? 17.Qf3 Bg4 18.Qg3 Bf5 (18...Ne4 19.Qf4–+) 19.Qg6 Bg6 20.f3 Rfd8 21.Rfd1 Nd5 22.Kf2 Kf8 23.e4 Nb6 24.Bb3 White plans d5 24...f6 25.d5 (25.Rac1 a5–+) 25...cd5 26.Bd5 Nd5 27.Rd5 (27.ed5 Rd7–+) 27...Rd5 28.ed5 Ke7 29.Ke3 (29.Re1 Kd6–+) 29...Kd6 30.Kd4 Rc8 31.Ra2 Bf7 32.f4 (32.Rd2 Bd5 33.Ke3 b5–+) 32...Bd5 33.Rd2 Rc4 34.Ke3 Re4 35.Kf3 (35.Kd3 Rf4 36.h3 Rf1–+) 35...Rd4 (35...Rd4 36.Ke3 Rd2 37.Kd2 Bg2–+; better is 35...Rb4! 36.Kg4 Rb3 37.a4–+) 0–1. Trkn – saemisch, itsyourturn.com, 2000.

9.Nc3 Nc3 10.dc3 Qg6 11.0–0 +=.

7.Be2 Be7

8.0–0 0–0 9.Nc3 (9.c5 Qe6=) 9...b6 (9...dc4 10.Bc4 Nb6 11.Be2=+) 10.d4 e4 11.c5 (11.Ne5 a5= (11...Ne5 12.de5 Qe5 13.Nd5+=)) 11...Qc7 (11...Qe6 12.Nd2=) 12.Nd2 b5 (12...Rb8 13.Qc2=) 13.Rb1 (13.a4!? ba4 14.Qa4+=) 13...a5= 14.ba5 Ra5 15.a4 ba4 16.Na4 Ba6 17.Bc3? (better is 17.Nc3=) 17...Ra4!–+ 18.Qa4 Be2 19.Rfe1 (19.Ba5 Qa7 20.Rfe1 Bb5–+) 19...Bb5 (19...Ng4 20.g3 (20.Re2?? Qh2 21.Kf1 Qh1) 20...Bd3 21.Ba5–+) 20.Qb3 (20.Qa5 Qb7–+) 20...Ng4 21.g3 Bg5 (21...Ngf6 22.Rb2–+) 22.Ra1 Qd8 (better is 22...Rb8–+) 23.Ba5? (23.h3 Ngf6 24.Reb1–+) 23...Qf6 24.Bc7 (24.Rf1–+) 0–1. alexy1 (2160) – musashi (2230), ICC, 2003.

8.0–0 0–0 9.Nc3 dc4 10.Bc4 Nb6 11.Be2 e4 12.Nd4 Bd8 13.f4 ef3 14.Rf3 Bc7 15.g3 Ng4 16.Nf5 Bf5 17.Rf5 Ne5 18.Nb5 cb5 19.Re5 (worse is 19.Be5 Qe6 20.Bc7 Qf5 21.Bb6 ab6+=) 19...Rad8 20.d3 (better is 20.Bd4 Nd5 21.Rg5+=) 20...Qf6 21.Rc5 Qb2 22.Rc7 Nd5 23.Rc2 Qe5 24.Qc1 Ne3 25.Rc5 Nd5 26.Ra2 (better is 26.Bf3–+) 26...b6 27.Rc6 Qd4 28.Kh1 (28.Kf1 Ne3 29.Ke1 Qd5 30.Qe3 Qa2–+) 28...Nb4! 29.ab4 Qd5 30.Bf3 Qa2 31.Be4 (31.Rc3 a5–+) 31...Qf2 (31...f5!? 32.Rc2 Qa4 33.Bb7–+) 32.Rc2 Qd4 33.Qe1 f5 34.Bb7 Qd3 35.Qe6 Kh8 36.Re2 (36.Qe2 Qd6 37.Rb2 f4–+) 36...Qd7 (better is 36...f4!? 37.gf4 Qb1 38.Kg2 Qb4 39.Qe4–+) 37.Qd7 Rd7 38.Bc6 Rd4 39.Ra2 Rb4 40.Ra7 Rb2 41.Bd7 g6 0–1. Sieber,Martin (2015) – Mikrut,Dariusz (2415), Orlova op, 2006.

8.0–0 dc4 9.Bc4 b5 10.Ba2 =+.

8.d4 e4 9.c5 Qc7 =.

8.d4 e4 9.Ne5 0–0 10.0–0 Ne8 11.cd5 cd5 (worse is 11...Qd5 12.Nc3 Qe6 13.Bc4+/–) 12.f3 ef3 13.Bf3 Nb6 14.a4 Bg5 (14...Qb4?? 15.Ba3 Qa4 16.Qa4 Na4 17.Be7+–) 15.Qe2 Qh6 (15...Qb4 16.Ba3 Qb3 17.Bf8 Qe3 18.Qf2 Kf8 19.a5 Qf2 20.Kf2+=) 16.Bc1 Be6 17.a5 Nc8 18.Nc3 Ne7 19.e4 Nf6 20.Nd3 de4 21.Ne4 Ne4 22.Be4 Nd5 23.Qf3 Rad8 24.b5 b6 (24...Nc3!? 25.Bg5 Qg5=) 25.Ne5 Nf6 26.Nc6 Rd7 27.Bf5 Bc1 28.Rac1 Bf5 29.Qf5 Qe3 30.Kh1 Rd5 31.Qb1 Rh5 32.Rf3 Qh6 33.h3 Rb5 34.Qb5 Qc1 35.Rf1 Qe3 36.ab6 ab6 37.Qb6 Ne4 38.Ne7 Kh8 39.Rf7 Qe1 40.Kh2 Qg3 41.Kg1 Qe1 42.Kh2 ½–½. Saradjen,Janko (2195) – Roskar,Robert (2295), SLO–chT, 2002.

8.cd5 cd5 9.0–0 0–0 10.Nc3 a6 11.d4 e4 12.Nd2 Bd8 13.Rc1 Bc7 14.g3 Nb6 15.Re1 (15.f3 Bh3 16.Rf2 ef3 17.Bf3+= (17.Nf3? Ng4–+)) 15...g6 (15...Bf5 16.f3=) 16.Na4 (better is 16.Qc2!?+=) 16...Na4= 17.Qa4 Bd7 18.Qb3 h5 (18...Rac8 19.f3=) 19.h4 (19.Rc3 Rfc8=) 19...Ng4 20.Bf1?? (better is 20.Kg2=) 20...Nf2!–+ 21.Ne4 (21.Kf2 Ba4) 21...Ne4 (21...de4?! 22.Kf2 Qg3 23.Ke2 Bg4 24.Kd2 Qh2 25.Re2 Be2 26.Be2–+) 22.Bg2 (22.Re2–+) 22...Qg3 23.Qd5 (23.Re2 Qh2 24.Kf1 Bb5–+) 23...Qh2 (23...Qf2 24.Kh1 Ng3 25.Kh2 Ne2 26.Rc7 Qh4 27.Bh3 Qh3) 24.Kf1–+ Bb5 25.Rc4 (25.Qb5 Nd2 26.Ke2 Qg2 27.Kd1 ab5 28.Re2–+) 25...Bc4 26.Qc4 Nd2 (27.Ke2 Qg2 28.Kd3 Nc4–+) 0–1. money – "Dlugy", ICC, 1995.

8.h3 0–0 9.0–0 (9.cd5 Nd5 10.Qc2=) 9...Bd8 (better is 9...dc4!? 10.Nc3 a5–/+) 10.d3+= Bc7 11.c5 (11.Nc3!?+=) 11...Qe7= 12.Nbd2 Re8 13.Nh4 Nf8 14.Nhf3 Ng6 15.e4 (15.Qc2 h6+=) 15...Nf4–/+ 16.Nh2 (16.Re1 h6–/+) 16...Ne2 (better is 16...b6!?–+) 17.Qe2–/+ d4 18.Nhf3 h6 19.Nh4 Nh7 20.Nf5 Qf6 21.g4 (21.Ng3 Be6+=) 21...Bf5 (21...Ng5 22.Kh2–/+) 22.ef5+= Ng5 23.Kg2 g6 (23...e4 24.Rh1 e3 25.fe3+=) 24.fg6 (24.h4 Nh7 25.Ne4=) 24...fg6 25.Ne4 Ne4 26.Qe4 g5 27.Rae1 Rf8 28.Bc1 Rf7 29.Bd2 Kf8 30.b5 cb5 31.Qb7 Re8 32.Qe4 (32.Qb5 Qf3 33.Kg1 e4 34.Re4 Re4 35.de4 Qh3–+) 32...Kg7 33.f3 Qa6 34.Bb4 (34.f4!? gf4 35.Bf4+=) 34...Qa4= 35.Rc1 (35.h4 gh4 36.Rf2 Re6+=) 35...a5+= 36.Be1 (36.Bd2!? Qa3 37.h4 gh4 38.Rf2–/+) 36...Qa3–/+ 37.Bf2 b4 38.Kg1 (38.Ra1 Qc3 39.Rac1 Qd2–+) 38...Qb3 (38...b3 39.c6–+) 39.Rb1 (39.Rc4 Re6–/+) 39...Qe6 40.Rfe1 (40.Bg3–+) 40...Rf4 41.Qb7 Re7 42.Qa8?? (better is 42.Bg3 Rf6 43.Qe4–+) 42...Ref7 43.Kg2 Qf6 (43...Qf6 44.Bg1 Rf3–+) 0–1. onny555 (1755) – adam64 (1745), gameknot.com, 2009.

8.h3 dc4 9.Bc4 a5 10.Nc3 –/+.

6.c4 e4

7.Nd4 c5 8.Nb5 Qc6 9.cd5 Nd5.

7.Nd4 c6 8.cd5 Nd5 9.d3 ed3 10.Bd3 Ne5 11.0–0 Qh6 12.Nb5 Bg4 (12...Nd3 13.Qd3 a6 14.e4+=) 13.Be2 Be2 (worse is 13...cb5 14.Bb5 (14.Bg4?! Bd6 15.h3 Nb6+=) 14...Nc6 15.Qg4+–) 14.Qe2 a6 15.Nd4 0–0–0 (15...Qg6 16.Nc3+=) 16.Nc3 Nb6 17.Rad1 Qg6 18.e4 Bd6 (18...Nbc4 19.Bc1 Qg4 20.f3+/–) 19.Nf5+/– Rhe8 20.Rd6 (20.Rd4 Bc7 21.Rd8 Bd8+=) 20...Rd6+= 21.Nd6 Qd6 22.Rd1 Qe7 23.f4 (23.Bc1 f5+=) 23...Nec4 24.Bc1 Kb8 25.Rd4 Nd6 e4 becomes the focus of attention 26.Qd1 Nb5 27.Nb5 ab5 28.g3 Kc7 (28...g6 29.Qc2+=) 29.Qh5 h6 30.Qg4 g6 (30...f6 31.f5+=) 31.f5 h5 (31...g5 32.Qh5+=) 32.Bf4 Kc8 33.Qh3 Nd7 34.Be3 (34.fg6 fg6 35.Kg2 Qg7=) 34...Ne5 35.fg6 Ng4 36.gf7 (36.Bf4 fg6 37.Qg2 g5=) 36...Qf7= 37.Bf4 Qa2 38.Rd2 Qb1 39.Qf1 Qe4 40.Rd3 h4 (40...Qe2 41.Qe2 Re2 42.h3=) 41.h3+= hg3 (41...Nf6 42.Bg5 Nd7 43.g4= (43.Bh4 Ne5 44.Rb3 Qd4 45.Kh2 Qd5 46.Qf5 Kc7–+)) 42.hg4 Rh8 Threatening mate: Qh1 43.Bh6 g2 (43...Rh6?? 44.Qf8 Qe8 45.Qe8 Kc7 46.Qd8) 44.Qf3 (44.Qg2 A deflection 44...Qd3) 44...Qf3 45.Rf3 Rh6 46.Kg2 Rd6 47.Kg3 Kd7 48.g5 Ke7 (48...b6 49.Kf4+=) 49.Kh4 b6 50.Kh5 c5 51.g6 The game is finished by a kings attack 51...Rd2 52.Rf7 Ke6 53.Rb7 Kf5 The mate threat is Rh2 54.Kh6 Rd6 55.Rf7 Ke6 (55...Ke5 56.Kg5 Rd3 57.Rf5 Ke6 58.Rf6 Ke7 59.Rb6+–) 56.Rf3 (56.bc5 bc5 57.Rc7 Rd3 58.Rc5 Kf6 59.Rc6 Ke7+–) 56...Rd2 (better is 56...Rd1!?+/–) 57.g7+– Rh2 58.Kg6 Do you see the mate threat? 58...Rg2 59.Kh7 Rh2 60.Kg8 (60.Kg8 Ke7 61.Rf5+–) 1–0. Rosner,Dirk – Lauer, email, 1999.

7.c5 Qe7

8.Nd4 c6 9.Be2 g6 (9...Ne5 10.0–0=) 10.0–0+= Bg7 11.d3 0–0 12.Nd2 (12.de4 de4 13.Qc2 Nd5+=) 12...Ne5 (12...ed3 13.Bd3 Ne5 14.Be2=) 13.de4+= de4 (13...Ne4 14.Ne4 de4 15.Qc2+=) 14.Qc2+/– Rd8 (14...Neg4!?+/–) 15.Ne4 Bf5? (better is 15...Bg4 16.Nf6 Bf6+/–) 16.Nf5+– gf5 17.Nd6 Qd7 (17...b5+–) 18.Be5 Ne8 (18...Ne4 19.Bg7 Kg7 20.Rad1 Nd6 21.Rd6+–) 19.Bg7 Kg7 20.Nf5 Kf8 (20...Kh8 21.Bc4 b5 22.cb6 ab6 23.Nh6+–) 21.Rad1 (21.Bc4 b5 22.Rfd1 Qc8+–) 21...Qe6 22.Bg4 (22.Nd4 Qh6+–) 22...Nf6 (22...Kg8 23.Rd3+–) 23.Qc3 Rd5 (23...Rab8 24.Bh3 h6 25.Ng7+–) 24.Rd5 cd5 25.Bh3 (25.Nd6 Qe7+–) 25...Re8 26.Nd6 Qe7 (26...Qe5 27.Qe5 Re5 28.Nb7+–) 27.Ne8 Ke8 28.c6 (better is 28.Bc8 b6 29.cb6 ab6 30.Qc6 Kf8 31.Qb6+–) 28...Kd8 (28...bc6 29.Qc6 Kf8+–) 29.cb7 Ne4 30.Qc8 1–0. hal1958 – stratum, playchess.de, 2003.

8.Nd4 Ne5

9.Nc3 Bg4 10.f3 Bd7 11.fe4 de4 12.Qc2 Neg4 (better is 12...Nc6=) 13.Ncb5+/– Nd5 14.Bc4 Ngf6 15.0–0 a6 (15...Kd8 16.Qb3+–) 16.Rf6!+– gf6 (16...Nf6 17.Nc7 Double attack; 16...Qf6 17.Qe4 Deflection (17.Bd5 Remove defender); 16...gf6 17.Bd5 Remove defender) 17.Bd5 ab5 18.Bb7 (18.Be4?! c6+/–; 18.Qe4?! c6 19.Qe7 Ke7+/–) 18...Rb8 19.Nc6 Bc6 20.Bc6 Kd8 21.a4 ba4 22.Qa4 (22.Ra4 Rg8 23.b5 Qc5 24.Rd4 Kc8 25.Bd7 Kd8 26.Bf5 Qd4 27.Bd4 Rb5 28.Bf6 Be7 29.Qe4 Bf6 30.Qd3 Ke7 31.Qb5 Rd8 32.Qc5 Ke8+–) 22...Qe6 23.Qa8!! Ke7 (23...Ra8 24.Bf6 Double attack) 24.Qb8 Qc6 25.b5 Qd7 (25...Bg7 26.Qh8 Qb5+–) 26.Ra4 Ke6 27.Qb7 Bd6 28.cd6 Qd6 29.Ra6 Qa6 30.Qa6 (30.Qa6 Ke7 31.Qf6 Kd7 32.Qc6 Kc8 33.b6 Kb8 34.Qc7 Ka8 35.Qa7) 1–0. Fournier,Frederic (2245) – CompuSaurio(C) (2055), Active, 2007.

9.Nc3 g6 =.

9.d3 ed3 10.Bd3 g6 11.Be2 Bg7 12.0–0 0–0 13.Qc2 Bd7 14.Nd2 a6 15.a4 Nc6 16.Nc6 Bc6 17.Bd3 Ng4 18.Bg7 Kg7 19.Nf3 Qf6 20.Be2 Bd7 21.Qd2 Be6 22.Nd4 Ne5 23.b5 ab5 24.ab5 h5 (24...Qe7 25.Qc3 f6 26.h3=) 25.Qc3 White prepares c6 25...Bg4 (25...Rh8 26.f4 Ng4 27.Bf3+= (worse is 27.Ne6 fe6 28.Qf6 Nf6=)) 26.f3 (26.f4 Ra1 27.Ra1 Nd7+/–) 26...Be6+= 27.c6 bc6 28.bc6 Kh7 29.Nb5 (29.Ne6? Nf3! (29...Qe6?! 30.Bb5=; 29...fe6?! 30.Qd4=) 30.Bf3 Qc3 31.Nf8 Rf8 32.Bd5 Qe3 33.Kh1 f5–+) 29...Qg7 30.Rfc1 (30.Nc7? Nf3 31.Bf3 Qc3 32.Na8 Qe3 33.Kh1 Rc8–+) 30...f6 31.Qc5 f5 (31...Rfe8 32.Ra7 Ra7 33.Qa7+=) 32.Rab1 Rfb8 33.f4 Nc4 34.e4 (better is 34.Bc4!? dc4 35.Nd4 Rb1 36.Rb1+=) 34...fe4+= 35.Bc4 dc4 36.Qe5 (36.Re1!?+=) 36...Bf5–/+ 37.Nc7 (37.Rc4?? Qe5 38.fe5 e3–+) 37...Rb1 38.Rb1 Rc8 39.Rb7 Qe5 40.fe5 Kh6 41.Nd5 Rc6 42.h4 Be6 43.Nf6 g5 44.Ne4 gh4 45.Nc3 (45.Rb2!?–/+) 45...Rc5–+ 46.Rb5? (better is 46.Kf2–+) 46...Rb5 47.Nb5 Kg5 48.Nd4 Bd5 49.Kh2 (49.e6 Kf6 50.e7 Ke7–+) 49...c3 50.e6 Kf6 51.e7 (51.Kh3 Be6 52.Kh4–+) 51...Ke7 52.Kh3 (52.g3 hg3 53.Kg3 Be4–+) 52...Kf6 53.Kh4 (53.Kh2 Ke5 54.Nc2 Be4–+) 53...Bg2 54.Kh5 (54.Nc2 Be4 55.Nb4–+) 54...Be4 55.Kg4 Ke5 56.Ne2 c2 57.Kg3 Bd3 58.Nc1 Kd4 59.Kf2 Kc3 60.Ke1 Bc4 0–1. Daatselaar,Jan Bart van (2200) – Sivic,Klemen (2225), WC15/WS63 ICCF, 2006.

9.f4 Nd3 10.Bd3 ed3 11.0–0 Bg4 (11...c6!?+=) 12.Qb3+/– c6 13.Qd3 Ne4 14.Qc2 h5 (14...0–0–0 15.d3 Nf6 16.Re1+/–) 15.d3 Nf6 16.Re1 Qc7 17.h3 Bd7 18.Nf3 Be7 19.Be5 Qc8 20.Nc3 h4 (20...0–0 21.e4+–) 21.e4 de4 22.de4 (22.Bf6 gf6 23.Ne4 Kd8+–) 22...Rh6 (22...b6 23.Bd6+–) 23.Rad1 Bh3 24.gh3 Qh3 25.Rd3 Nh5 26.f5 Rd8 27.Rd8 Bd8 (27...Kd8 28.Qg2 Qg2 29.Kg2+–) 28.Qg2 Qg2 29.Kg2 f6 (29...Bf6+–) 30.Bb8 a5 (30...b6 31.cb6 ab6 32.Nh4+–) 31.Nh4 ab4 32.ab4 b6 33.cb6 Bb6 34.Ng6 Bd4 35.Ne2 Bb6 (35...Be3 36.Rd1+–) 36.Rd1 1–0. ChelseaMick – arturo, ChessWorld.net, 2005.

9.f4 ef3 10.gf3 Ne4 11.Ke2 Qh4 =+.

9.f4 ef3 10.Nf3 Nf3 11.Qf3 Ne4 12.Nc3 c6 13.Ne4 de4 14.Qf4 Qe6 15.Be2 Be7 16.0–0 Qg6 17.h4 h5 18.Rac1 Be6 19.Kh2 Rd8 20.Bd4 0–0 21.Qg3 Bg4 22.Bc4 b5 23.Bb3 Rd7 24.Rf2 Kh7 25.Rcf1 f5 26.a4 ba4 27.Ba4 Rb7 28.Bc2 Re8 29.Bd1 Bd8 (worse is 29...Rb4 30.Bg4 fg4 31.Rf7+=) 30.Bg4 fg4 31.Rf5 Bc7 32.Be5 Re5 33.Re5 Rb4 (33...Be5 34.Qe5 g3 35.Qg3 Rb4 36.Qe5+=) 34.Rff5 Be5 35.Re5 Qf7 36.Rg5 a5 37.Qe5 g6 38.Qd6 a4 39.Re5 (39.Qc6? a3 40.Rd5 Rb7–+) 39...Rb7 40.Re4 a3 41.Rf4 Qg7 42.Qe6 Ra7 43.Qa2 Qg8 44.Qg8 Kg8 45.Rf1 a2 46.Ra1 Kf7 47.Kg3 Ke6 48.Kf4 Kd5 49.Kg5 Kc5 50.Kg6 g3 51.Kh5 Kb4 52.Kg4 Ka3 53.Kg3 Kb2 54.Re1 a1Q 55.Ra1 Ra1 56.d4 Kc3 57.Kf4 Rh1 58.Kg5 Kd3 59.g4 Ke3 60.h5 Kd4 61.h6 (61.Kf6–+) 61...c5 62.Kg6 c4 (62...c4 63.h7 c3–+) 0–1. Karpenko – Shchebenyuk (2275), RUS–Cup2 email, 2002.

9.f4 ef3 10.Nf3 Nf3 11.Qf3 Ne4 12.Be2 Qh4 (12...h5 13.Qf4+=) 13.g3+= Qe7 (13...Qd8 14.Nc3 Nc3 15.Bc3+=) 14.d3 Ng5 15.Qd5 Qe3 16.Qe5 (16.Nd2 c6 17.Qe5 Qe5 18.Be5 Be6+=) 16...Qe5 17.Be5 a5 18.Kd2 (18.Kd1 Ne6+=) 18...f6 (18...ab4 19.ab4 Ra1 20.Ba1+=) 19.Bc7 ab4 20.d4 Ne6 21.Bb5 Kf7 22.Bc4 Kg6 23.Be6 Be6 24.Re1 Bd5 25.Kd3 h5 26.h3 (26.Bf4 Kf5+=) 26...h4= 27.g4 Kf7 1–0. guest2009 – guest1555, ICC, 2003.

7.Nd4 dc4

8.Bc4 Nb6 9.Bb5 c6 10.Be2 =+.

8.Bc4 Ne5

9.Nb5 Qe7 10.Be5 Qe5 11.N1c3 (11.d4 ed3 12.Qd3 a6=) 11...a6 12.Nd4 c5 13.f4 Qc7 14.bc5 Bc5 (worse is 14...Qc5 15.Qa4 Ke7 16.0–0+/–) 15.Nde2 (15.Nd5 Qd8 16.Nf6 Qf6= (worse is 16...gf6 17.Qh5 Qe7 18.Bf7 Qf7 19.Qc5+/–)) 15...b5 (15...Qc6 16.Qc2–/+) 16.Nd5+= Nd5 17.Bd5 Bb7 18.Bb7 (18.Qb3 Rd8 19.Bb7 Qb7=) 18...Qb7+= 19.Ng3 0–0 20.Qc2 Qe7 Exerts pressure on the isolated pawn 21.Ne4 Ba3 22.Ng5 (22.0–0 Rfc8 23.Qb1 Qb4+=) 22...g6 23.0–0 Bb4 (23...b4 24.e4+=) 24.Nf3 Rfc8 25.Qb2 Qe4 26.Rfc1 Rd8 27.Nd4 (27.Rc2 a5=) 27...Bf8+= 28.Qb1 Qb1 (28...Qb1 29.Rab1 b4+=). Kleinke,Uwe – Mooren,Leonardus CJM, corr ICCF EU–ch GT151, 1978.

9.Qc2 c6 10.Bf1 White is in command 10...g6 (10...a5 11.b5+=) 11.Nc3+= Bf5 12.Ncb5 Qe7 13.Nf5 gf5 14.Qc5 cb5 (14...Qc5 15.bc5) 15.Qe5 Qe5 16.Be5 Ke7 17.Bb5 (17.d4 Rg8+/–) 17...Ke6 (17...Rg8 18.Rg1+/–) 18.d4+– Rc8 19.0–0 (19.Rd1 Bd6 20.Bf6 Kf6+/–) 19...Rg8 20.Rac1 Be7 21.Ba4 (21.Bc4 Nd5+–) 21...Nd5+/– 22.Bb3 b6 (22...b5 23.f3+–) 23.Bg3 (23.f3 Bg5 24.Rc8 Be3 25.Kh1 Rc8+–) 23...Bd6 (23...a5+/–) 24.a4 (better is 24.Bd5!? Kd5 25.Bd6 Kd6 26.Rfd1+/–) 24...Bb4+= 25.Rb1 a5 (25...Bc3 26.f3 Bd2 27.Bd5 Kd5 28.Rb5 Kc4 29.Kf2+=) 26.Rfc1+/– Bd6 27.Bd5 Kd5 28.Rb5 Ke6 Threatening mate: Rxc1 29.Rcb1 Rc6?? (better is 29...Bg3 30.hg3 Rb8+/–) 30.d5+– (30.d5 Ke7 31.dc6 Bg3 32.fg3+–) 1–0. Dopper,Johan – Miller,Frank, corr NED–USA, 1991.

6.c4 Be7

7.Nc3 0–0? 8.Nb5+/– Qc6 9.Be5 (9.Ne5 Ne5 10.Be5 Bd8 11.Bf6 Qf6) 9...dc4 (9...Ne5 10.Ne5 Qe6 11.d4+/– (worse is 11.Nc7 Qe5 12.Na8 Bg4+=) 11...Bd6) 10.Nfd4 (10.Nc7?! Ne5 11.Na8 Nf3 12.Qf3 Qf3 13.gf3 Bd7+=) 10...Qd5 (10...Qe4 11.Bc7 (11.Nc7?! Qe5 12.Na8 Qb8+=) 11...a5 12.Bd6+/– (worse is 12.Bc4 Qg2 13.Rf1 Ne8+=)) 11.Bf6+– Nf6? (better is 11...Bf6 12.Nc7 Qe4+–) 12.Nc7 Qg5 (12...Qd6 13.Na8 Bg4 14.f3+–) 13.Na8 Bg4 14.f3 Ra8 (14...Bd7 15.f4 Qg6 16.Nc7+–) 15.fg4 Ng4 (15...c3 16.Qf3 (worse is 16.dc3 Qe3 17.Ne2 Ng4+–) 16...cd2 17.Kd2+–) 16.Bc4 Nh2 (16...Ne5 17.Bf1+–) 17.Bf7! Kf7 18.Qb3 (18.Rh2?! Qg3 19.Ke2 Qh2 20.Qb3 Kg6 21.Qd3 Kf7 22.Rf1 Kg8+–) 18...Kg6 (18...Ke8 19.Qg8 Bf8 20.Qf8 Kf8 21.Ne6 Ke7 22.Ng5+–) 19.Qe6 Bf6 (19...Qf6 20.Qe4 Kf7 21.Rh2+–) 20.Qe4 (20.Qe4 Kf7 21.Qb7 Kg6 22.Qa8 Qg3 23.Kd1 Qg4 24.Kc2 Bd4 25.ed4+–) 1–0. marus1 – SSV1, internet, 2001.

7.Nc3 a6 8.d4 (8.cd5 Nd5 9.Nd5 Qd5 10.Qc2+=) 8...c6 (better is 8...e4!? 9.Nd2 c6=) 9.Nd5!+/– cd5 (9...Qd5 10.cd5) 10.de5+– Qc6 (10...Qb8 11.ef6 Bf6 12.Bf6 Nf6 13.c5+–) 11.ef6 Bf6 12.Nd4 Qc7 (12...Qd6 13.c5 Qc7 14.Qb3+–) 13.cd5 Be5 (13...Qe5+–) 14.Rc1 Qb8 (14...Qd8 15.f4 Bf6 16.Bd3+–) 15.f4 Bf6 16.Bd3 (16.Bd3 a5 17.0–0+–) 1–0. pcmvr (2740) – diggitus (2370), net–chess.com, 2007.

7.Nc3 dc4 8.Bc4 Nb6 (8...0–0 9.Nb5 Qb6 10.Ne5+/–) 9.Nb5+= Qd8 10.Be5 Nc4 11.Nc7 The passed pawn on d2 quickly leads to threats 11...Kf8 12.Na8 Bg4 13.Bd4 Qa8 14.h3 Bh5 15.d3 Nd6 (15...Bf3 16.gf3 Nd6 17.Qa4+=) 16.Rc1 Nb5 17.Bc5 (17.Bb2 Qd8+/–) 17...Qd8 18.Be7 Ke7 19.g4 (19.a4 Nc7+/–) 19...Bg6+= 20.a4 Nc7 21.Ne5 (21.e4 Re8+=) 21...Ncd5 (21...Qd6 22.Rc5+=) 22.g5 (22.Qf3 Qd6 23.Ng6 hg6+=) 22...Ne8 (22...Nd7 23.Ng6 hg6 24.Qf3+=) 23.b5 (23.Qg4 Qd6 24.Ng6 hg6+=) 23...Qd6 (23...Qa5 24.Kf1+=) 24.Ng6 hg6 (24...Qg6 25.Rg1+=) 25.Qg4 Nec7 26.Qd4 Ne6 (26...a6 27.Qg7 Rh4 28.ba6 Qa6 29.Qe5 Kd7 30.0–0+/–) 27.Qa7+/– Qd7 28.Rc4 Rd8 (28...Rc8+/–) 29.Kf1 (29.f4 Ke8+/–) 29...Kf8 (29...Nb6 30.Rc3 (worse is 30.Qb6 Qd3 31.Kg2 Qc4 32.Qb7 Rd7–/+) 30...Nd5 31.Rc1=) 30.Kg2 (30.Rh4 Kg8 31.Rg1 Nc3=) 30...Kg8 (30...Ng5 31.Qc5 Kg8 32.Qd4=) 31.Rhc1 (31.f4!?+/–) 31...Ng5+= Threatening mate: Qxh3 32.Rg4 Ne6 33.Kg1 (33.Rg3 Nf6=) 33...Nf6= 34.Rg3 (34.Rg2 Qd5=) 34...Qd5 (34...Qd3 35.Qb7 Ne4 36.Rg2+=) 35.Kh2 (35.e4 Qd7=) 35...Nh5+= 36.Rg2 Qf3 (36...Ng5 37.Rg5 Qg5 38.Qb7=) 37.Kg1 (better is 37.Rc3!?=) 37...Rd3–/+ (worse is 37...Qh3 38.Qb7 Qf5 39.Qe4+/–) 38.Qb8 Kh7 39.Qc8 (39.Rc8 g5 40.Rh8 Kg6–/+) 39...Nhf4 The mate threat is Qxg2 40.ef4 Nf4 41.Qg4? (better is 41.Rg4 Nh3 42.Kh2 Qf2 43.Rg2–+) 41...Ne2 (41...Qg2 42.Qg2 Ng2 43.Kg2+/–) 42.Kf1 Nc1 Do you see the mate threat? 43.Qf3 Rf3 44.Rg4 (44.Rg3 Rb3–+) 44...Rh3 (44...Nd3 45.Ke2 Rh3 46.Rc4–+) 45.Rc4 Nb3 46.Rc7 Na5 47.Rf7 Rh4 (47...Rh4 48.Rf3 Ra4 49.Rh3 Kg8–+) 0–1. marekt – Apocalypse, internet, 2005.

7.Nc3 c6 8.Qb3 0–0 (8...e4 9.c5 Qc7 10.Nd4=) 9.cd5 cd5 (9...Nd5 10.Rd1=) 10.Nb5 Qb8 11.Rc1 Bd8 12.Qc2 Ne8 13.Be2 a6 14.Nc3 Qd6 (14...Nef6 15.0–0=) 15.Na4 (15.0–0 Nef6=) 15...Bc7 (15...e4 16.Nd4=) 16.b5 (16.d3 b6=) 16...f6 (16...e4 17.Nd4 Qg6 18.0–0=) 17.d4 (17.ba6 ba6 18.e4 Ba5=) 17...e4 (17...ab5 18.Bb5 Ba5 19.Nc3=) 18.Nd2 f5 19.g3 (19.Qb3 Rf7=) 19...g5 Black prepares f4 (19...Ba5 20.Nc3=) 20.Nc5 (20.Nc3 Ndf6+=) 20...Ndf6 (20...ab5 21.Bb5 Ndf6 22.h4+=) 21.a4 (21.ba6 ba6 22.h3 f4 23.gf4 gf4 24.Rg1 Kh8=) 21...f4 (21...ab5 22.ab5 b6 23.Na6=) 22.gf4+= gf4 23.Rg1 (23.Qb3!? fe3 24.fe3+=) 23...Kh8= 24.Nde4 (24.ef4 Qf4 25.Rg2=) 24...Ne4 (24...de4 25.Ne4 Ne4 26.Qe4 Ba5 27.Kd1 Nf6=) 25.Ne4+= fe3 (better is 25...Qh6!? 26.Ng5 fe3 27.fe3 Qh2=) 26.Nd6+/– ef2 27.Kd2 fg1Q 28.Rg1 Bd6 29.Kc1 (29.ba6!? ba6 30.Rf1+/–) 29...Bf5+= 30.Bd3 (better is 30.Qb3!? ab5 31.Bb5 (31.Qd5 Rc8 32.Kd1 Bc2 33.Kd2 Bb4 34.Ke3 Nf6 35.Qb5 Rce8 36.Kf2 Nd5 37.Bf3 Be4+=) 31...Bh2 32.Rg2 Bf4 33.Kd1=) 30...Rc8–/+ 31.Bf5 Rc2 32.Bc2 ab5 33.ab5 Bh2 34.Rh1 (34.Re1 Bd6+=) 34...Bf4 (34...Rf2 35.Re1 Nd6 36.Re7+=) 35.Kb1 (35.Kd1 Nf6+=) 35...h6 (35...Nf6 36.Ba3 Rf7 37.Rf1+=) 36.Rh5 (36.Re1 Nd6 37.Ba3 Re8 38.Re8 Ne8+=) 36...Bg5–/+ 37.Ba3 (37.Bd3 Ng7 38.Rh1 Rf2–/+) 37...Rf1 38.Ka2 Nc7 (38...Rf2 39.Kb1–/+) 39.b6 (39.Rh2 Kg7–/+ (worse is 39...Nb5 40.Bd3 Na3 41.Bf1+/–)) 39...Nb5 (39...Rf2 40.Kb1 Nb5 41.Rh3–/+) 40.Bc5 Rf2 41.Kb1 (41.Kb2 Kg8–/+) 41...Rd2 (41...Be3 42.Rh3 Bd4 43.Rh6 Kg7 44.Bd4 Nd4 45.Rh7 Kg8 46.Bd3–/+) 42.Rh1 (42.Bb3!? Nc3 43.Ka1–+) 42...Nd4–+ 43.Ba4 (43.Bd4 Rd4 44.Rd1 Rb4 45.Ka2 Bf6–+) 43...Ne2 44.Rh3 d4?? (better is 44...Kg7–+) 45.Bb4–/+ Nc3 46.Rc3 (46.Bc3 dc3 Passed pawn) 46...dc3 47.Bc3 ½–½. Heinola,K – Alava,M, TKK–TTKK FIN, 1984.

7.Nc3 c6 8.cd5 cd5 9.Nb5 Qb6 10.Ne5 +/–.

7.Nc3 c6 8.cd5 Nd5 (--> 6.c4 c6 7.Nc3 Be7 8.cd5 Nd5).

7.cd5 0–0 8.d4 ed4 9.Qd4 Qd5 10.Qd5 Nd5 =.

7.Be2 dc4 8.Bc4 0–0 9.d4 (9.Nc3 c5=) 9...e4 10.Ng5 (10.Ne5!? Nb6 11.Nc3=+) 10...Nb6–/+ 11.Bf7 (11.Bb3 h6 12.Nf7 Rf7 13.Bf7 Kf7–/+) 11...Rf7 12.Nf7 Kf7 13.0–0? (better is 13.Qc2!?–/+) 13...Ng4–+ 14.g3 (14.f4–+) 14...Qh6 15.h4 Bh4! 16.Kg2 (16.gh4 Qh4) 16...Bg3! 17.Rh1 (17.Kg3 Qh2) 17...Qg5 (17...Qg6!? 18.Qe2 Nf2 19.Qh5 Nh1 20.Qg6 Kg6 21.Nd2–+) 18.Qe2 Ne3! 19.fe3 (19.Qe3 Bf4) 19...Bg4 20.Rf1 Kg8 21.Qc2 Bf3 22.Kg1 (22.Rf3 ef3 23.Kf3 Rf8 24.Ke2 Rf2 25.Kd1 Qh5 26.Kc1 Rf1 27.Kd2 Be1 28.Kd3 Qg6 29.Ke2 Qc2 30.Nd2 Qd2 31.Kf1 Qf2) 22…Bd6 (23.Qg2 Qg2) 0–1. jiikoo – Apocalypse, internet, 2005.

6.c4 g6

7.Qa4 c6 8.c5 Qe7 9.d4 ed4 (9...e4 10.Nfd2=) 10.Bd4+= Bg7 11.Be2 (11.Bd3 0–0+=) 11...0–0 12.0–0 Bh6 13.h3 Ne4 14.Nbd2 f5 15.Qc2 Ndf6 16.Nb3 (16.Rfd1 f4 17.ef4 Bf4+=) 16...f4= 17.ef4 Bf4 18.Bd3 Bf5 19.Rfe1 Rae8 20.g3 (20.Re2 Bh6+=) 20...Bb8 21.g4 Ng4 (21...Bd7 22.g5 Nh5 23.Nbd2–/+) 22.hg4 Bg4 23.Re4 (23.Be4 de4 24.Qc4 Be6 25.Re4 Rf3 26.Re6 Qe6 27.Qe6 Re6–+) 23...de4 24.Bc4 Be6 25.Ne1 (25.Nfd2 Bc4 26.Qc4 Rf7–/+) 25...Qf7 (25...Qh4 26.Be6 Re6 27.Qc4–+) 26.Be6 Qe6 27.Ng2?? (better is 27.Nd2–/+) 27...Qh3–+ 28.Qc4 Rf7 29.Be3 Qh2 30.Kf1 Qh1 31.Ke2 Qg2 32.Nd4 Bf4 33.Qb3 (33.Bf4 Qg4 34.Ke1 Qf4 35.Ra2–+) 33...Be3 34.Qe3 Rf3! 35.Qh6 (35.Qf3 ef3 Discovered attack) 35...Rf2 36.Ke3 Black now must not overlook the idea Qh4 36...Qg3 37.Nf3 Qf3 38.Kd4 Qd3 0–1. Szewczak,Andrzej – Kulik,Wojciech, Liga B Warszawa, 1997.

7.Nc3 c6 8.Rc1 Bg7 9.cd5 Nd5 10.Na4 (better is 10.Nd5!? cd5 11.Qc2+=) 10...0–0+= 11.Be2 (11.Qc2 Re8+=) 11...e4 (11...a5 12.ba5 e4 13.Bg7 Kg7 14.Nd4 Ra5 15.0–0–/+) 12.Bg7 ef3 (12...Kg7 13.Nd4 a5 14.Nc3+=) 13.Bf8+= fg2 14.Bd6 gh1Q 15.Bf1 N7f6 16.d3? (better is 16.f3!? Bf5 17.Qe2+=) 16...Bg4–/+ 17.Qc2 (17.Qd2 Qg1 18.Nc3 Re8 19.Nd5 Nd5–+ (19...cd5?! 20.Qb2 Nh5 21.Bg3+=)) 17...Re8–+ 18.Bg3? (better is 18.Nc3–+) 18...Nh5 19.Nc3 (19.Nc5 Bh3 20.Ke2 Ng3 21.hg3 Ne3 22.fe3 Qh2 23.Kd1 Bg4 24.Be2 Qg1 25.Kd2 Qe3 26.Kc3 Be2 27.Re1–+) 19...Bh3 (better is 19...Ng3 20.hg3 Ne3 21.fe3 Re3 22.Kd2 Qh6–+) 20.Kd2–/+ Bf1 21.Nd5 cd5 22.Qd1 Ng3 23.hg3 d4! 24.Qf1 (24.ed4 Re2 Deflection) 24...de3 25.fe3 Qh2 26.Qe2 Qg3 27.d4 (27.Qe1 Qg2 28.Qe2 Qd5–+) 27...h5 28.Rf1 (28.Qe1!? Qg4 29.Rc7–/+) 28...Rc8 29.Rf4 (29.Re1 Qd6–+) 29...Qg1 (better is 29...Qh3!? 30.Qf1 Qh2 31.Qf2 Qh1–+) 30.Rf1 Qg3 31.Rf4 Qh3 32.d5 (32.Qf1 Qh2 33.Qf2–+) 32...Qh1 33.Qd3 (33.Qd1 Qd5 34.Rd4 Qa2 35.Ke1–+) 33...Qc1 34.Ke2 Rc2 35.Kf3 (35.Qc2 Qc2 36.Ke1–+) 35...Qh1 0–1. Frosinos,Ioannis (1875) – Kostianis,Georgios, Aegean Open, 2010.

7.Nc3 c6 8.cd5 Nd5 9.Nd5 cd5 10.Ne5 Ne5 11.Bb5 Bd7 +=.

7.Nc3 c6 8.cd5 Nd5 9.Ne4 Qe7 10.d4 f5 11.de5?? (better is 11.Nc3 e4 12.Nd5 cd5 13.Nd2=) 11...fe4–+ (12.Nd2 Ne5 13.Ne4 Bg7–+) 0–1. Ziethen,H – Alekseev,Anatoly Vasilievich, corr ICCF–Cup8/9 V189, 1990.

6.d3 Be7

7.Nbd2 0–0 8.Be2 a5 9.c4 =.

7.Nbd2 0–0 8.Be2 b6 9.c4 c6 10.cd5 cd5 (worse is 10...Nd5 11.Nc4 Qe6 12.Nfe5 Ne5 13.Ne5+= (worse is 13.Be5 b5–/+)) 11.0–0 Ba6 12.Rc1 Rac8 13.Rc8 Rc8 14.Qb3 Ne8 (14...Bb7 15.d4 e4 16.Ne5=) 15.Rc1 (better is 15.Ne5!? Ne5 16.Be5 Qe5 17.d4+/–) 15...Rc1= 16.Bc1 Nc7 17.Bb2 h6 18.h3 Bf6 19.Bf1 Bb7 20.d4 White prepares the advance b5 20...e4 21.Ne1 Ba6 (21...b5!?+=) 22.Ba6= Na6 23.Qa4 Ndb8 24.b5 Nc7 25.Qa7 Nb5 26.Qa4 Qc6 27.Qc2 Be7 28.a4 Nc7 29.Qc6 Nc6 30.Nb3 f5 31.Nc2 Kf7 32.Bc3 Ke6 33.a5 ba5 34.Na5 Na5 35.Ba5 Nb5 36.Kf1 Na3 37.Na3 Ba3 38.Bc7 g5 39.f3 Bc1 40.Ke2 Ba3 41.fe4 fe4 42.g4 Bd6 43.Bd6 Kd6 44.Kd2 Kc6 45.Kc3 Kb5 46.Kb3 Ka5 47.Ka3 Kb5 48.Kb3 Ka5 49.Ka3 Kb5 50.Kb3 ½–½. Fournier,Frederic (1770) – Gjedde (1770), Partie evaluee, 2007.

7.Nbd2 0–0 8.Be2 Re8 9.c4 c6 (9...a5 10.0–0=) 10.c5 (10.d4 e4 11.Ne5 Qe6=) 10...Qc7 11.0–0 (11.Qa4 a5=) 11...Bf8 (11...b6 12.d4 ed4 13.cb6 ab6 14.Nd4=) 12.Nh4 (12.Qa4 b6 13.cb6 Nb6=) 12...g6 (12...b6 13.cb6 ab6 14.Qc2+=) 13.f4 (13.Qc2 b6=) 13...Bg7 (13...ef4 14.ef4 b6+=) 14.Ndf3 (better is 14.fe5 Ne5 15.h3=) 14...ef4–/+ 15.ef4 Qf4 16.d4?? (better is 16.Bc1 Qc7 17.d4–/+) 16...Qe3–+ 17.Kh1 Qe2 18.Re1 (18.Rb1–+) 18...Qb2 0–1. alaamattar (2225) – diggitus (2425), net–chess.com, 2008.

7.Nbd2 a5 8.c4 +=.

6.d3 g6

7.Nc3 a6 A) 8.h3 Bg7 (8...Nb6 9.Na2 Nbd7 10.Nc3 Bg7 11.Be2 0–0 12.0–0 b6 13.Nd2 Bb7; 8...b6 9.g4 h6 10.Bg2 Bg7 11.Nd2 Bb7 12.0–0 0–0 13.h4 Qe6; 8...Be7 9.Be2 0–0 10.0–0 Nb6 11.Qd2 Bf5 12.e4 de4 13.Ne4 Ne4) 9.Be2 0–0 10.0–0 Nb6 11.Qd2 Bf5 12.a4 Rfd8 13.a5 Nbd7; B) 8.g3 Bg7 (8...Nb6 9.Be2 Bg7 10.0–0 0–0 11.Qd2 Bf5 12.Nh4 Bh3 13.Rfd1 Rfe8; 8...Bh6 9.Bg2 0–0 10.0–0 Re8 11.Re1 Nb6 12.Nd2 Bg4 13.Bf3 Qd7; 8...Be7 9.Bg2 0–0 10.0–0 Nb6 11.Rb1 Bg4 12.h3 Bf5 13.e4 de4) 9.Bg2 0–0 10.0–0 Nb6 11.Qd2 Bd7 12.Rfe1 Rfe8 13.Rab1 c6; C) 8.Be2 Bg7 (8...Bh6 9.0–0 0–0 10.h4 Bg7 11.Qd2 Re8 12.Ng5 Nb6 13.Rfd1 Bd7; 8...Be7 9.h3 0–0 10.0–0 Nb6 11.Re1 Re8 12.Rb1 Be6 13.Qd2 Kg7; 8...b6 9.0–0 Bg7 10.Nd2 0–0 11.Bf3 c6 12.Nb3 Bb7 13.Qd2 c5; 8...c6 9.0–0 Be7 10.Qd2 0–0 11.Na4 Re8 12.c4 dc4 13.dc4 Qd2; 8...b5 9.0–0 Bh6 10.h4 0–0 11.Ng5 Bb7 12.Bf3 Bg7 13.h5 gh5) 9.0–0 0–0 10.Qd2 b6 11.d4 Re8 12.de5 Ne5 13.h3 Bb7.

7.Nc3 c6 A) 8.g3 Bg7 (8...Nb6 9.Be2 Bg7 10.Na2 Nbd7 11.c4 0–0 12.Nc3 dc4 13.dc4 Qe7; 8...a5 9.Bg2 Be7 10.0–0 0–0 11.Qd2 Re8 12.b5 Nc5 13.Rab1 Bd7; 8...Be7 9.Bg2 a5 10.0–0 0–0 11.Qd2 Re8 12.Rfb1 b6 13.b5 c5; 8...Bh6 9.Bg2 0–0 10.0–0 Re8 11.Qe2 Nb6 12.b5 c5 13.Nd2 Bg4; 8...b6 9.Bg2 Bg7 10.0–0 0–0 11.Qd2 Bb7 12.Na4 Rfe8 13.Rfe1 e4; 8...b5 9.Bg2 Bg7 10.0–0 Bb7 11.Qd2 0–0 12.Rfe1 Rfe8 13.Ng5 a6) 9.Bg2 0–0 10.0–0 Nb6 11.Qd2 Re8 12.a4 Qb4 13.a5 d4; B) 8.h4 Be7 (8...Bg7 9.Be2 a5 10.0–0 0–0 11.Qd2 Re8 12.Na4 ab4 13.ab4 b6) 9.Be2 a5 10.b5 0–0 11.0–0 Ng4 12.a4 Qc7 13.Ba3 Bb4; C) 8.h3 Be7 (8...a5 9.Be2 ab4 10.ab4 Ra1 11.Qa1 Qb4 12.0–0 Be7 13.Na2 Qa4; 8...Bg7 9.Be2 b6 10.0–0 0–0 11.Ng5 h6 12.Nf3 Bb7 13.Qd2 a5; 8...b6 9.g4 Be7 10.g5 Nh5 11.Bg2 0–0 12.0–0 Bb7 13.b5 f6) 9.Be2 a5 10.0–0 ab4 11.ab4 Ra1 12.Qa1 Qb4 13.Na2 Qa4; D) 8.Rb1 Bg7 (8...b6 9.g3 Be7 10.Bg2 0–0 11.0–0 Bb7 12.Qe2 b5 13.a4 a5; 8...a5 9.b5 Bg7 10.Be2 0–0 11.0–0 Re8 12.a4 c5 13.Nd2 Nb6; 8...b5 9.Be2 a5 10.ba5 Be7 11.Qd2 0–0 12.h4 Bd8 13.a6 Ra6; 8...Qc7 9.Be2 Bd6 10.0–0 0–0 11.Qd2 a5 12.b5 Nc5 13.h3 Rb8; 8...Bh6 9.Be2 0–0 10.0–0 b6 11.h4 Bg7 12.Qd2 Bb7 13.Ng5 h6; 8...Be7 9.Be2 b5 10.0–0 0–0 11.Qd2 a5 12.Ra1 Bb7 13.ba5 Bd8) 9.Be2 0–0 10.0–0 Re8 11.g3 Nb6 12.Qd2 d4 13.Ne4 Ne4; E) 8.Be2 Bg7 (8...Bh6 9.0–0 0–0 10.h3 Re8 11.g4 Bg7 12.g5 d4 13.Na4 Nd5; 8...b6 9.0–0 Bg7 10.b5 c5 11.Nd2 0–0 12.Bf3 Bb7 13.a4 Qe6) 9.0–0 0–0 10.Qd2 b6 11.b5 c5 12.a4 Bb7 13.a5 d4.

7.Nc3 Be7 A) 8.Qd2 a5 (8...0–0 9.Be2 Nb6 10.0–0 Be6 11.Nb5 Qc6 12.Nc3 Qd6 13.Nb5 Qd7) 9.ba5 Ra5 10.Be2 Qb6 11.0–0 0–0 12.Rab1 c6 13.Na2 Rb5; B) 8.Be2 a5 9.0–0 ab4 10.ab4 Ra1 11.Qa1 Qb4 12.Na2 Qd6 13.Ne5 0–0.

7.Nc3 Bg7 A) 8.Be2 0–0 (8...c6 9.0–0 0–0 10.Qd2 b6 11.Na4 Bb7 12.h3 Rfe8 13.Qc3 Rac8; 8...a6 9.0–0 0–0 10.Ng5 Nb6 11.Qd2 h6 12.Nf3 Bf5 13.h3 Rfe8) 9.0–0 c6 10.Qd2 b6 11.Ng5 h6 12.Nf3 Bb7 13.Na4 Rfe8; B) 8.Nb5 Qb6 9.c4 a6 10.Nc3 dc4 11.dc4 0–0 12.c5 Qe6 13.Be2 b6.

7.Nc3 Bh6 8.Nb5 Qb6 (8...Qc6 9.Ne5 Qb5 10.Nd7 Bd7 11.Qf3 Bg7 12.Bf6 0–0 13.Bg7 Kg7) 9.Ne5 Qb5 10.Nd7 Bd7 11.Qf3 Bg7 12.Bf6 0–0 13.Bg7 Kg7.

7.c4 dc4 A) 8.Nc3 c5 9.Nb5 Qb8 10.bc5 cd3 11.Bd3 a6 12.Nd6 Bd6 13.cd6 Qd6; B) 8.dc4 Qd1 (8...e4 9.Qd6 Bd6 10.c5 Bc5 11.bc5 ef3 12.Bd4 fg2 13.Bg2 0–0) 9.Kd1 a5 10.Ne5 Ne5 11.Be5 Ng4 12.Bh8 Nf2 13.Ke1 Nh1; C) 8.Nbd2 cd3 9.Nc4 Qe7 10.Nfe5 Bg7 11.Nf3 0–0 12.Bd3 Rd8 13.0–0 Nb6.

7.c4 e4 A) 8.c5 Qe7 9.Nd4 Bg7 10.de4 de4 11.Nc3 0–0 12.Be2 Ne5 13.Qc2 Nc6; B) 8.Nd4 Ne5 (8...ed3 9.c5 Qe7 10.Nc3 Bg7 11.Bd3 0–0 12.0–0 Ne5 13.Be2 c6) 9.Nb5 Qe7 10.de4 a6 11.Qd4 Nfg4 12.cd5 ab5 13.h3 Bg7; C) 8.de4 de4 9.Qd6 Bd6 10.c5 Bc5 11.bc5 ef3 12.Bd4 0–0 13.gf3 c6.

7.Be2 a5 A) 8.0–0 ab4 9.ab4 Ra1 10.Ba1 Bg7 11.Bc3 0–0 12.Nbd2 Re8 13.Qa1 b5; B) 8.Nc3 Be7 (8...ab4 9.Nb5 Qb6 10.Ne5 ba3 11.Nd7 Bd7 12.Bf6 Rg8 13.Nc7 Qc7 14.0–0; 8...c6 9.0–0 Bg7 10.Qd2 0–0 11.h3 Re8 12.Na4 ab4 13.ab4 b6) 9.0–0 ab4 10.ab4 Ra1 11.Qa1 Qb4 12.Na2 Qd6 13.Ne5 0–0; C) 8.Nbd2 Be7 (8...Bh6 9.c4 0–0 10.0–0 e4 11.c5 Qe7 12.de4 de4 13.Nd4 Nd5; 8...Bg7 9.0–0 0–0 10.c4 e4 11.c5 Qe7 12.de4 de4 13.Nd4 Nd5) 9.0–0 0–0 10.c4 ab4 11.ab4 Ra1 12.Qa1 Qb4 13.Rb1 e4.

7.Be2 c6 A) 8.0–0 Bg7 (8...a5 9.Nbd2 Bg7 10.c4 0–0 11.c5 Qc7 12.Qb3 Re8 13.h3 b5; 8...Be7 9.c4 0–0 10.Nc3 a5 11.c5 Qc7 12.Qc2 b5 13.d4 e4; 8...b6 9.c4 Bg7 10.Nc3 0–0 11.cd5 Nd5 12.d4 Rd8 13.Rc1 Nc3; 8...Qc7 9.c4 a5 10.cd5 ab4 11.dc6 bc6 12.Nbd2 ba3 13.Nc4 Be7; 8...a6 9.c4 Bg7 10.c5 Qe7 11.Qc2 0–0 12.Nbd2 Re8 13.h3 a5; 8...Rb8 9.c4 Bg7 10.Nc3 0–0 11.Qa4 Ra8 12.c5 Qe7 13.Rab1 e4) 9.c4 0–0 10.Nc3 b6 11.cd5 Nd5 12.d4 Rd8 13.Rc1 Nc3; B) 8.Nbd2 b6 (8...Bh6 9.c4 0–0 10.cd5 cd5 11.0–0 e4 12.de4 de4 13.Ne1 Qe6; 8...Be7 9.0–0 b5 10.Nb3 0–0 11.Qd2 e4 12.Nfd4 Ne5 13.h3 a6; 8...b5 9.0–0 Bh6 10.Bc3 0–0 11.a4 Re8 12.ab5 cb5 13.Nb3 Bb7; 8...Bg7 9.0–0 0–0 10.c4 b6 11.cd5 cd5 12.d4 ed4 13.Bd4 Bb7; 8...Qe7 9.c4 Bg7 10.0–0 0–0 11.Qc2 Re8 12.cd5 Nd5 13.g3 N5b6; 8...a5 9.c4 Bg7 10.c5 Qe6 11.0–0 0–0 12.Qc2 Qe7 13.h3 Rd8; 8...Qe6 9.0–0 Bd6 10.c4 0–0 11.cd5 cd5 12.Ng5 Qe7 13.Rc1 Nb6) 9.c4 Bh6 10.cd5 cd5 11.0–0 0–0 12.Qa4 Bb7 13.d4 e4; C) 8.c4 Bg7 (8...dc4 9.dc4 Qd1 10.Kd1 Rg8 11.Nbd2 a5 12.Kc2 ab4 13.ab4 Ra1; 8...e4 9.de4 de4 10.Ng5 Ne5 11.c5 Qd1 12.Kd1 Neg4 13.Ke1 Bg7; 8...Be7 9.0–0 0–0 10.Nc3 b6 11.cd5 Nd5 12.Ne4 Qe6 13.d4 f6; 8...a5 9.Nbd2 Be7 10.0–0 0–0 11.c5 Qe6 12.Ng5 Qf5 13.h4 ab4) 9.0–0 0–0 10.Nc3 b6 11.cd5 Nd5 12.d4 Rd8 13.Rc1 Nc3.

7.Be2 Be7 A) 8.Nbd2 0–0 (8...b5 9.Nb3 0–0 10.0–0 Rb8 11.Qd2 e4 12.Nfd4 c5 13.Nc5 Nc5; 8...c6 9.0–0 0–0 10.c4 b5 11.cd5 cd5 12.Rc1 Ba6 13.d4 e4; 8...a5 9.0–0 0–0 10.c4 Qe6 11.Qb3 b6 12.Qc3 dc4 13.Qc4 Nd5; 8...Qe6 9.0–0 0–0 10.c4 a5 11.Qb3 dc4 12.dc4 Rd8 13.h3 h6; 8...a6 9.0–0 0–0 10.c4 a5 11.Qc2 Qe6 12.d4 e4 13.Ne5 c6; 8...b6 9.c4 0–0 10.cd5 Qd5 11.e4 Qe6 12.0–0 Ba6 13.d4 Be2; 8...Kf8 9.0–0 Kg7 10.c4 c6 11.Qc2 b6 12.Qc3 a5 13.ba5 Ra5; 8...Rb8 9.c4 0–0 10.cd5 Nd5 11.Ne4 Qe6 12.d4 Qg4 13.Qb1 ed4; 8...h6 9.0–0 0–0 10.c4 Qe6 11.Qc2 a5 12.d4 e4 13.Ne5 c6) 9.0–0 b5 10.Nb3 Rb8 11.Qd2 e4 12.Nfd4 c5 13.Nc5 Nc5; B) 8.Nc3 a5 9.0–0 ab4 10.ab4 Ra1 11.Qa1 Qb4 12.Na2 Qb6 13.Ne5 0–0; C) 8.0–0 0–0 (8...b6 9.c4 0–0 10.Nc3 dc4 11.dc4 Bb7 12.Qc2 Qc6 13.Rfd1 a5; 8...a5 9.Nbd2 0–0 10.c4 Qe6 11.Ng5 Qb6 12.d4 h6 13.c5 Qa7) 9.Nbd2 b6 10.c4 c6 11.cd5 cd5 12.d4 e4 13.Ne5 Bb7.

7.Be2 Bg7 8.Nbd2 (8.Nc3 0–0 (8...c6 9.0–0 0–0 10.h3 b6 11.Qd2 Bb7 12.Ng5 a5 13.b5 c5; 8...a6 9.0–0 0–0 10.Qd2 b6 11.Ng5 h6 12.Nf3 Bb7 13.d4 e4; 8...Qb6 9.Qd2 0–0 10.0–0 Re8 11.d4 ed4 12.Nd4 Ne5 13.Na4 Qd6) 9.0–0 c6 10.Qd2 b6 11.d4 Re8 12.h4 Ng4 13.Ng5 Ndf6; 8.0–0 0–0 9.Nc3 a6 10.Re1 b6 11.Nd2 c5 12.Bf3 Bb7 13.bc5 bc5; 8.c4 dc4 (8...0–0 9.Nc3 dc4 10.dc4 Qe7 11.0–0 Nb6 12.Qc2 Be6 13.Ne4 Ne4) 9.Nc3 cd3 10.Qd3 Qe7 11.Qc4 Nb6 12.Qb5 Nbd7 13.Qc4 Nb6) 8...0–0 (8...a5 9.0–0 0–0 10.c4 e4 11.de4 de4 12.c5 Qe7 13.Nd4 Nd5) 9.0–0 (9.c4 e4 10.de4 de4 11.c5 Qe7 12.Nd4 Nd5 13.0–0 Rd8) 9...c6 (9...b6 10.c4 e4 11.de4 de4 12.Nd4 a6 13.Qc2 Bb7) 10.c4 e4 (10...b6 11.cd5 cd5 12.Rc1 Bb7 13.d4 e4) 11.de4 (11.c5 Qe7 12.de4 Ne4 13.Bg7 Kg7) 11...de4 12.Nd4 (12.c5 Qe7 13.Nd4 Nd5) 12...Re8 (12...c5 13.Nb5 Qb6+= (13...Qc6 14.Nb3=); 12...Ne5 13.Qc2 Bg4) 13.c5+= Qc7 (13...Qd5+=) 14.Qc2 a6 15.Rfd1 Ne5 (15...a5!?+/–) 16.Ne4+– Ne4 17.Qe4 Bd7 18.Qh4 h6 19.f4 g5 20.Qh5 Ng6 21.Bc4 Nh8 22.fg5 Re3?? (22...Qe5 23.Rf1 Qe3 24.Kh1 Re7+–) 23.gh6 Re5 (23...Qe5 24.h7 (worse is 24.hg7 Qh5 25.Nc6 Bc6 26.gh8Q Qh8 27.Bh8 Kh8+–) 24...Kf8 25.Ne6 Be6 26.Be5 Re5 27.Qh4 Bc4 28.Qc4+–) 24.Qh4 (24.hg7?! Rh5 25.gh8Q Rh8=) 1–0. usingprogram – amadeuzz, internet, 2011.

6.d4 ed4

7.Bd4= a5 8.b5 =.

7.Bd4 b6 8.b5 (8.Bd3 c5 9.Bc3 Be7=) 8...Bb7 (8...a6 9.a4=) 9.Be2 (9.Bd3 a6+=) 9...Be7 (9...a6 10.Nc3=) 10.0–0 0–0 11.Nbd2 (11.Nc3 a6=) 11...c5 (11...a6 12.a4=) 12.bc6 Bc6 (12...Qc6 13.a4=) 13.c4 (13.a4 Ne4=) 13...Ne4 (13...Rfd8 14.Qc2=) 14.cd5 (14.Qc2 Ndc5=) 14...Bd5 15.Bg7 (15.Ne4!? Be4 16.Bd3=) 15...Kg7+= 16.Ne4 Be4 17.Qd6 Bd6 18.Rfd1 Be5 19.Ra2 Bc6 20.Rad2 Bf6 21.Rd7 Bd7 22.Rd7 Rfc8 (22...Rfd8 23.Rd8 Rd8 24.a4–/+) 23.g3 (23.g4 Rc2 24.Kf1 h6+=) 23...Rc2 (23...a6 24.a4+=) 24.Kf1 Ra2 (24...a5 25.Nd4 Bd4 26.Rd4+=) 25.Rf7= Kf7 26.Bc4 Kg7 (26...Ke7 27.Ba2 Rc8 28.a4=) 27.Ba2+= Rc8 28.Bb3 (28.a4 a6=) 28...Rc3 (28...b5 29.Ke2=) 29.Nd2 b5 30.Ke2 a5 31.a4 ba4 32.Ba4 Ra3 33.Bb3 a4 34.Be6 (better is 34.Bd5!?=) 34...Ra1–/+ 35.Kd3 a3 36.f4 (36.Nf3 Rf1 37.Ke2 Rb1–+) 36...a2 37.e4 Bc3 (37...Bb2 38.e5–/+) 38.Ba2 Bd2 39.Bc4 (39.Bd5 Ba5–/+) 39...Ba5 40.Ke3 (40.e5 Rh1–+) 40...Rh1–+ 41.h4 (41.e5 Rh2 42.Ke4 Rg2–+) 41...Be1 42.g4 Rh4 43.Be2 (43.Ke2 Bg3 44.Kf3 Bh2–+) 43...Rh3 (43...Bg3 44.f5–+) 44.Kd4 Bc3 (44...Bg3 45.f5–+) 45.Kd5 (45.Kc4 Bd2 46.f5 Kf6–+) 45...Rh2 46.Bb5 Rf2 47.f5 (47.Kc4 Bb2 (47...Rf4?! 48.Kc3 Re4 49.Bd7–+) 48.f5 Rg2–+) 47...Kf6 48.Be8 Rf4 (48...Rg2 49.Kc4 Be5 50.Bh5–+) 49.Bh5 h6 50.Be8 (50.Kc4 Be5–+) 50...Rg4 0–1. Bendig,Frank – Euler, corr, 1990.

7.Bd4= c5 8.bc5+= Nc5 9.Bb5 Bd7 10.Nc3 Bb5 (10...Nce4 11.Bd3+=) 11.Nb5 Qd7 12.Bf6 (12.Rb1!? a6 13.Bf6 ab5 14.Bb2+=) 12...Qb5= 13.Bc3 Ne6 14.Qd3 Qc6 (14...Qc4 15.Qc4 dc4 16.Ke2=) 15.Ne5+= Nc5 16.Nc6 Nd3 17.cd3 bc6 18.f4 Rb8 19.Bd4 Rb3 The isolani on a3 becomes a target (19...Kd7 20.Ke2=) 20.Kd2 Bd6 (20...Ra3 21.Ra3 Ba3 22.Rb1+= (22.Bg7? Rg8–+)) 21.Rhb1+= (worse is 21.Bg7 Rg8 22.Kc2 Rb6–/+) 21...Rb1 22.Rb1 (22.Rb1 0–0 23.Rb7 Ba3 24.Ra7 Bb4 25.Bc3 Bc3 26.Kc3+=). Suess,Stefan – Foth, corr, 1988.

7.Nd4 a5 8.b5 =.

7.Nd4 c5 8.bc5+= Qc5 9.Nd2 Qa5 10.Be2 Bd6 (10...Ne4 11.N4b3 Qb6 12.0–0+=) 11.0–0 (11.Nf5 Bf8+=) 11...0–0 12.Nf5 Be5 13.Nb3 (13.Bd4 Re8+=) 13...Qc7= 14.Nbd4 (14.Ne7!? Kh8 A) worse is 15.Nc8 Bb2 (15...Rac8?! 16.Be5 Ne5 17.Nd4=; 15...Rfc8?! 16.Be5 Ne5 17.Nd4=; 15...Qc8?! 16.Be5 Ne5 17.Nd4=; 15...Bh2 16.Kh1 Rac8 17.Nd4–/+) 16.Ra2 Be5–/+ (16...Rac8?! 17.Rb2 Nb6 18.Nd4=); B) 15.Be5 Qe5 16.Nc8 Rac8 17.Nd4=) 14...Bh2+= 15.Kh1 Be5 16.f4 Bd4 17.Nd4 (17.Bd4 Re8+=) 17...Nc5 (17...Ne4!? 18.Kg1 Ndf6–/+) 18.Nb5+= Qb6 19.Bf6 Qf6 20.Nc7 Rb8 21.Nd5 Qh4 22.Kg1 Ne4 (22...Be6 23.Qd4 Bd5 24.Qc5+=) 23.Bf3 (23.f5!? Ng3 24.Rf4=) 23...Ng3+= 24.Re1 Be6 25.c4 Rfd8 26.Qd4 b6 (26...b5 27.cb5 Rb5 28.e4–/+) 27.Rad1 Qh1 28.Kf2 Qh4 29.Kg1 Qh1 (29...Rd7 30.e4+=) 30.Kf2= Qh4 (30...Qh2 31.Ne7 Kf8 32.Nd5+=) ½–½. Lindner,Jan Joost – Tocco,Paolo, Arco, 2000.

6.d4 e4

7.Nfd2 a5 8.ba5 Ra5 9.c4 =.

7.Nfd2 a5 8.b5 Nb6 9.c4 Bg4 10.c5 Bd1 11.cd6 =.

7.Nfd2 a5 8.b5 c6 9.a4 (9.c4 Qc7=) 9...Qe6 10.c4 Bb4 11.Be2 (11.Ba3 0–0=) 11...Qf5 (11...dc4 12.bc6 Qc6 13.Qc2=+) 12.0–0 0–0 13.c5 Bd2 (13...cb5!? 14.ab5 Qg6+=) 14.Nd2+= Qg6 15.Re1 (15.f3 ef3 16.Rf3 Re8+=) 15...Re8 16.bc6 (16.Rb1!?+=) 16...bc6= 17.Bc3 Nf8 (17...Ba6 18.Rb1=) 18.Nb3 Exerts pressure on the isolated pawn (18.Rb1 Ba6=) 18...Bh3+= 19.Bf1 (19.g3 Bg4+=) 19...Bg4+/– 20.Qd2 Increasing the pressure on the isolated pawn on a5 20...Bf3 (20...Reb8 21.Reb1+/–) 21.Ba5 Ne6 (21...Reb8 22.Reb1+/–) 22.Kh1 (better is 22.Reb1+/–) 22...Ng5? (22...Reb8 23.Reb1 (23.gf3?! Rb3 24.Be2 ef3=) 23...Bg4 24.Bb6+/–) 23.Bc7 (23.gf3 Nf3 24.Be2 Nd2 25.Bd2 Ng4 26.Bg4 Qg4–+) 23...Qh5? 24.Bg3 Ng4? 25.Qc2 Re6? 26.Nd2 Rh6 27.h4 Nh3 28.gf3 Nhf2 29.Kg2 f5 30.fg4 Qg4 31.Kf2 Rg6 32.Ra3 Qg3 33.Ke2 Qg4 34.Kf2?? Rf8?? 35.Rb1+– f4 36.Ke1 f3 37.Kd1 Qg3 38.Kc1 Qe1 39.Kb2 Qf2 40.a5 Qe3 (41.Re3 Re6+–; 40...Rg1 41.Ka1 Qh4+–). toll (1995) – Clifton (2120), ICC, 2003.

7.Nfd2 a5 8.c4 ab4+= 9.c5 Qe6 10.ab4 Ra1 11.Ba1 Be7 12.b5 b6 13.c6 Nf8 14.Be2 Qf5 15.0–0 Qg5 16.f4 ef3 17.Nf3 (17.Rf3!? Bd6 18.Bb2+=) 17...Qe3–/+ 18.Kh1 Ng4 (18...Ng6 19.Nc3–/+) 19.Qd2 (19.Nc3 Be6+=) 19...Ne6 20.Ne5? (better is 20.g3–/+) 20…Nf2–+ (20...Nf2 21.Rf2 Qf2–+) 0–1. Mothes,R – Benussi,A, corr SOK–96–118, 1997.

7.Nfd2 Nb6 8.Be2 Be7 9.0–0 0–0 10.c4? (10.h3 Be6 unclear) 10...Nc4 11.Nc4 dc4 12.Bc4 Ng4 13.g3 (13.f4 ef3 14.g3 Ne3–+) 13...Qh6 14.h4 Bh4! 15.Qd2 (15.gh4 Qh4) 15...Bg5 16.Re1 Qh2 17.Kf1 Qh1 18.Ke2 Qf3 19.Kf1 Ne3 20.Re3 (20.Qe3 Bh3! 21.Kg1 Qg2) 20...Bh3 21.Ke1 Qh1 22.Bf1 (22.Ke2 Qf1) 22...Qf1 0–1. COMP – Bonetti,Shane, 2000.

7.Nfd2 Be7 8.c4 c6 9.Nc3 0–0 10.b5 Rd8 11.a4 Nf8 12.a5 Bd7 13.Be2 Ng6 14.Ba3 Qe6 15.Be7 Ne7 16.Na4 Qf5 17.Nc5 Bc8 (17...Qg6!? 18.g3 b6 19.Nd7 Nd7=) 18.bc6+= bc6 19.Nf1 Qg5 20.Ng3 Nd7 21.Nd7 Bd7 22.Qd2 Rab8 23.0–0 g6 24.a6 h5 25.Qa5 Nf5 26.Nf5 Bf5 27.Rfb1 Bh3 28.Bf1 h4 (28...Rb1 29.Rb1 h4 30.Kh1+/–) 29.Kh1 (29.Rb8 Rb8 30.Qc7 Rb2+/–) 29...Be6 30.Rb7 Qf6 31.Kg1 dc4 32.Qc5 h3 33.Qa7 (33.Ra7 Rb2 34.f4 ef3–+) 33...Ra8 34.Qb6 hg2 35.Be2 (35.Bg2 Qg5 36.Qc7 Bd5+/–) 35...Bd5 36.a7 Qd6 37.Rb1 Kg7 38.Rb8 Rdb8?? (38...c3 39.Rd8 Rd8 40.Kg2 Rh8=) 39.Qb8+– (39.Qb8 Rb8 40.ab8Q Qb8 41.Rb8+–; 39.ab8N Ra2 40.Re1 c3=) 1–0. Nguyen Tran Quang,Minh – Le Thanh Minh, VIE–ch U20 Dong Thap, 1999.

7.Nfd2 Be7 8.c4= c6 9.Nc3 0–0 10.Rc1 (10.Be2 a5=) 10...a6 (10...a5 11.c5 Qc7 12.b5=) 11.c5 Qc7 (11...Qe6 12.Be2=) 12.Be2 Ne8 (12...b6 13.cb6 Nb6 14.0–0=) 13.0–0 f5 14.Qb3 Kh8 (14...Rf6 15.f3 Rh6 16.g3=) 15.f4 (15.f3 Bg5 16.f4 Be7=) 15...Ndf6 16.a4 (16.Na4 Nd7=) 16...Ng4 17.Bg4 (17.Nd1 Nef6=) 17...fg4 18.b5 Nf6 19.Rfd1 (19.Rb1 ab5 20.ab5 Bf5=) 19...Bf5=+ 20.Nf1 Qd7 (20...ab5 21.ab5 Kg8 22.Ng3=) 21.Ng3 Bg6 22.Rf1= h5 23.Nh1 h4=+ 24.g3 Nh5 25.gh4 Bh4 26.Kg2 Kg8 27.Ng3 Ng3 28.hg3 Bf6 29.Rh1 Bf5 30.Rcf1 Kf7 31.Qb4 Rh8 32.Rh8 Rh8 33.ba6 ba6=+ 34.Qb6 Qc8 35.Ne2 Bd8 36.Qa7= Kf8 ½–½. Kern,M – Bolduan,M, Hessen clubgame, 1997.

7.Nfd2 Be7 8.c4 c6 9.cd5 cd5 (worse is 9...Qd5 10.Nc3 Qe6 11.Qc2+/–) 10.Nc3 a6 11.Be2 0–0 12.0–0 b5 13.f3 White gets deadly initiative 13...Nb6 (13...Bb7!?=) 14.fe4+= de4 15.Nce4 Ne4 16.Ne4 Qh6 17.Bc1 Nd5 (17...a5 18.Bb5 ab4 19.a4+/–) 18.Qd3 f5 19.Ng3 Bg5 (19...Qe6!?+/–) 20.Bf3+– (20.Bf3 Be6 21.Nf5 Rf5 22.Qf5 Bf5 23.Bd5 Kh8 24.Ba8 (24.Rf5 Be3 25.Kh1 Rd8+=) 24...Be3 25.Kh1+–; worse is 20.Nf5 Bf5 21.Rf5 Rf5 22.Qf5 Rd8+/–) 1–0. Vettenburg,L – Tytgat,x, corr Belgium (year?).

7.Ne5 Nb6 8.c4 dc4 9.Nc4 (9.Nd2 Be6=) 9...Nc4 10.Bc4 Be7 (10...Be6 11.Nd2=) 11.0–0 (11.Nd2 Be6=) 11...Ng4=+ 12.g3 Qh6 13.h4 Bh4 (14.Qc2 Be7–+) 0–1. Hasler,Ulrich – Marti, corr, 1989.

7.Ne5 c6 8.Be2 (8.c4 Be7=) 8...Be7 9.c4 0–0 10.0–0 a6 11.f3 ef3 12.Nf3 (better is 12.Rf3!? Qe6 13.Nc3=) 12...Ng4–/+ 13.Bc1 Re8 (13...Bg5! 14.c5 Qh6–/+) 14.cd5 cd5 15.Bd3 Qc7 16.h3 Ngf6 17.Bd2 (17.Ra2 a5 18.b5 Qg3=) 17...Ne4+= 18.Qc1 Qg3 (18...Qc1 19.Rc1 Bd6 20.Be1+=) 19.Be1 Qd6 20.Nc3 Ndf6 21.Ne5 Be6 22.Ne4 (22.Qb1 Nc3 23.Bc3 Qb6=) 22...de4+= 23.Bc4 (23.Bc2 Rac8 24.Qb1 Bd5+=) 23...Rec8 (23...Nd5 24.Bb3–/+) 24.Be6+= Qe6 (worse is 24...fe6 25.Qb1+=) 25.Qd1 (25.Qb1 Bd6 26.Bh4 Be5 27.de5 Qe5 28.Bf6 gf6+=) 25...Bd6–/+ 26.Ng4 (26.Bg3 Rc3–/+) 26...Nd5 27.Bd2 f5 28.Nf2 f4 (28...b5 29.Rc1–/+) 29.Re1+= fe3 (worse is 29...Ne3 30.Be3 fe3 31.Re3+=) 30.Be3 Qf5 (30...Bg3 31.Rc1–/+) 31.Qb3 (31.Qb1 Re8+= (worse is 31...Ne3 32.Re3 Rf8 33.Ne4+/–)) 31...Bg3 (31...Rc3 32.Qa2+=) 32.Rf1? (better is 32.Rac1+=) ½–½. Hasler,Ulrich – Weibel, corr, 1988.

7.Ne5 Qe6 8.Be2 (8.c4 Bd6 9.Nc3 c6= (< 9...Be5 10.de5 Qe5 11.cd5+=)) 8...Bd6=+ 9.c4 (9.Nd7 Bd7 10.Nd2 b5=+) 9...Ne5–/+ (9...Be5?! 10.de5 Ne5 11.cd5 Nd5 12.Qd4 Nd3 13.Bd3 ed3 14.0–0=) 10.c5 (10.de5 Be5 11.Be5 Qe5–/+) 10...Ng6 (10...Nc4!? 11.Bc4 dc4 12.cd6 cd6–/+) 11.cd6=+ Qd6 12.Nc3 0–0 13.h4 (13.Rc1 Bd7=+) 13...Ne7–/+ 14.g4 (14.h5 h6–/+) 14...Ne8 (14...Be6 15.h5–/+) 15.Kd2 (15.Rc1 f5–/+) 15...f5 16.Qg1 (16.gf5!? Rf5 17.Ke1–/+) 16...fg4–+ 17.Bg4? (better is 17.h5–+) 17...Bg4 18.Qg4 Rf2 19.Ne2 (19.Kc1 Nf6 20.Qg5 Nf5–+) 19...Qf6 (better is 19...Qa6 20.b5 Qb5–+) 20.Rag1 (20.Ke1–+) 20...Qf3 21.Qe6 (21.Qf3 ef3 22.Re1 Nd6–+) 21...Kh8 22.Re1 Nf5 23.Kc1 Re2 24.Re2 Qh1 25.Kd2 Ned6 (25...Qf1!? 26.Qd5 Ng3 27.Re1 Qf2 28.Kd1 Qb2 29.Qb7 Qb1 30.Kd2 Qd3 31.Kc1 Qa3 32.Kd1 Qa4 33.Kc1–+) 26.Qd5 Qf1 27.Qb3 Nh4 (better is 27...Rf8!? 28.Qc3 Ne3 29.Re1 Rf2 30.Kc1–+) 28.d5 (28.Qd1 Nc4 29.Kc2–+) 28…Nf3 (29.Kc2 Qe2 30.Kc1 Nc4–+) 0–1. De Smet,G – Kocur,Johan, Huy op, 1993.

7.Ng5 Nb6 8.c4 Nc4 9.Bc4 dc4 10.Nc3 +=.

7.Ng5 h6 8.Nh3+= Nb6 9.Be2 (9.Nf4 Bg4 10.f3 Bf5–/+) 9...Na4 (9...Bh3 10.gh3 Qd7 11.h4–/+) 10.Bc1 (10.Bb5 Bd7 11.Ba4 Ba4–/+) 10...Bh3 11.gh3 c6 (better is 11...Nb6–/+) 12.Rg1?? (better is 12.c4 b5 13.cb5=) 12...Qh2–+ 13.Kd2 (13.Rg3 Bd6 14.Rg7 Kf8–+ (14...Qh3?! 15.c4 Qh1 16.Bf1–/+)) 13...Qh3 (13...Qf2 14.Qe1 Qh2 15.Qg3 Qg3 16.Rg3–+) 14.Nc3 (14.c4 Nb6 15.c5 Nbd7–+) 14...Nb6 (14...Nc3 15.Kc3 Qf5 16.Qe1–+) 15.Bg4 (15.b5 Qh2 16.Qf1 cb5 17.Bb5 Kd8–+) 15...Ng4 16.Qg4 (16.Rg4 Nc4 17.Ke1 Qh1 18.Ke2 Qf3 19.Kf1 Qd1 20.Nd1 h5–+) 16...Qg4 17.Rg4 Nc4 18.Kd1 (18.Ke2 h5 19.Rg1 h4–+) 18...f5 (18...h5 19.Rg1–+) 19.Rg2 Kf7 (19...g5 20.Nb1–+) 20.Bd2 (20.Nb1 h5–+) 20...g5 (20...h5 21.Ne2–+) 21.a4 (21.Na4 a5 22.ba5 Nd2 23.Kd2 Ra5–+) 21...a6 (21...Nd2 22.Kd2 Bb4 23.a5–+) 22.Ke2 (22.Rb1 Kf6–+) 22...Bb4 (22...Nd2 23.Kd2 Bb4 24.Rh2–+) 23.Rh1 (23.Ne4 fe4 (worse is 23...de4 24.Bb4 a5 25.Bc3–+) 24.Bb4 a5–+) 23...Nd2 (23...Bd6 24.Bc1–+) 24.Kd2 Bc3 (24...b5!? 25.Rb1 a5 26.ab5–+) 25.Kc3 Kg6 26.Rb1 b5 27.ab5 (27.a5 h5–+) 27...ab5 (27...cb5 28.Kd2–+) 28.Kd2 (28.Rbg1 Ra2–+) 28...Ra2 (28...h5 29.Rh2–+) 29.Rgg1 Rha8 (29...h5 30.Ra1 Ra4 31.Rh1–+) 30.Kc3 R8a3 (30...h5 31.Rb2–+) 31.Kd2 (31.Rb3 Ra4 32.Rb2 R2a3 33.Rb3 b4 34.Kb2 Ra2 35.Kc1 Ra1 36.Rb1 h5–+) 31...h5 Black prepares the advance g4 32.Rh1 (32.Rg2 h4–+) 32...g4 (32...f4 33.ef4 gf4 34.Rhg1 Kf5 35.Rh1–+) 33.Rbc1 (33.Rh2 Ra4–+) 33...Rd3 (33...Kg5 34.Rh2 h4 35.Rb1–+) 34.Ke1 Rc3 35.Kd2 b4 36.Rhg1 (36.Rh2 Rc4 37.Kd1 Kg5–+) 36...h4 (36...Rc4 37.Ke1–+) 37.Kd1 (37.Rh1 h3–+) 37...Kg5 38.Rh1 (38.Rg2 h3 39.Rh2 b3–+) 38...b3 39.Rg1 (39.Rh2 Rcc2 40.Rc2 Rc2–+) 39...bc2 (better is 39...Rcc2 40.Rc2 bc2 41.Kd2 c1Q 42.Kc1 Ra1 43.Kd2 Rg1–+) 40.Rc2 (40.Ke2–+) 40...Rcc2 (40...Rac2 41.f4 Kh5 42.Re1 h3 43.Rg1 Rc1 44.Ke2 R3c2) 41.f3 Rcb2 (41...Rh2 42.Rg4 fg4 43.f4 Kf5 44.Ke1 Rh1) 42.Kc1 Ra1 (42...ef3 43.Re1 g3 44.Rh1 f2 45.Rf1 g2 46.Rd1 f1Q 47.Rf1 gf1Q) 43.Kb2 Rg1 44.Kb3 h3 45.Kb4 h2 46.Kc5 h1Q 47.Kc6 (47.Kd6 Kf6 48.fg4 Qh2 49.Kd7 Qh7 50.Kc6 Rc1 51.Kb6 fg4 52.Ka6 Rc6 53.Ka5 Qb7 54.Ka4 Ra6) 47...Qf3 (47...Qh6 48.Kd7 Ra1 49.f4 Kh4 50.Kc7 Ra7 51.Kb8 Qb6 52.Kc8 Qc7) 48.Kd5–+ Qd1 49.Ke5 (49.Kd6 g3 50.Kd7 Qa4 51.Ke7 Rc1 52.Kd8 Qa7 53.d5 Qb7 54.d6 Rc8) 49...Rh1 (49...Qc2 50.d5 Rh1 51.d6 Qc5 52.Ke6 Rh7 53.d7 Re7) 50.d5 (50.Kd5 Qb3 51.Kc5 Rc1 52.Kd6 Kf6 53.d5 Qb4 54.Kd7 Qe7) 50...Qa4 (50...Rh6 51.d6 Qd6) 51.d6 (51.Ke6 Rh6 52.Kf7 Qa7 53.Kg8 Rd6 54.Kf8 Rd8) 51...Rh6 (51...Rd1 52.d7 Qa1 53.Ke6 Qf6) 52.d7 Qa1 (52...Qb5 53.Kd4 Qb4 54.Kd5 Rd6 55.Ke5 Qc5) 53.Kd5 Qf6 0–1. TriAngel – BIGBANG, ICC, 1999.

7.Nfd2 c6

8.c4 b6 9.Nc3 Be7 10.Qc2 Ba6? (better is 10...a5 11.cd5 ab4 12.ab4 Ra1 13.Ba1 Nd5+=) 11.c5+– Bd3 12.Bd3 (12.Qd3! Qc7 13.Qc2 a5+–) 12...ed3 13.cd6 dc2 14.de7 Ke7 15.Rc1 Rhe8 (15...a5 16.ba5 Ra5 17.Rc2+–) 16.f3 (16.Rc2 a6+–) 16...Kf8 17.Kf2 Re7 (17...a5 18.ba5 Ra5 19.Rc2+–) 18.Rhe1 (18.Rc2 a5+–) 18...Rae8 19.g3 (19.Rc2 c5 20.Nb5 c4+–) 19...h6 (19...c5 20.dc5 bc5 21.Nb5+–) 20.Rc2 Kg8 (20...c5 21.Nb5 c4 22.Nd6+–) 21.e4 Nf8 22.e5 N6d7 (22...N6h7 23.b5 Ne6 24.Ke3+– (worse is 24.bc6 Nd4 25.Rcc1 Nc6 26.Nd5 Rd7 27.Rc6 Rd5+–)) 23.f4 (23.b5 Re6+–) 23...Ng6 (23...Ne6 24.Ke3 Nf6 25.h3+–) 24.Ne2 (24.b5!? cb5 25.Nd5 Kf8+–) 24...Nb8 25.Nf3 Kh7 26.h4 Rc7 (26...Nf8 27.g4+–) 27.f5 Ne7 28.Nf4 (28.g4 h5+–) 28...Rg8 (28...Nf5 29.Nd5! Rd7 30.Ne3 Ne3 31.Ke3+–) 29.Nh5 White intends f6 (29.f6 gf6 30.ef6 Nf5 31.Nd5 Rd7+–) 29...Nc8 (29...Nf5 30.Nf4 Ne7+–) 30.f6 g6 (30...g5 31.hg5 hg5 32.Bc1+–) 31.Nf4 Rd8 (31...Rd7+–) 32.Ng5 (better is 32.e6 Na6 33.h5+–) 32...hg5 33.hg5 Re8 (33...Rcd7+–) 34.Rh1 Kg8 35.Kf3 1–0. Roczniak,Jan – Woronowicz,Zbigniew, corr Poland, 1990.

8.c4= Be7 9.Nc3 0–0 10.Qb3 (10.Be2 a5=) 10...Qe6 (10...a5 11.b5=) 11.Rc1 Qf5 (11...a5 12.b5=) 12.cd5 cd5 13.h3 (13.Be2 a5=) 13...Nb6 (13...a5 14.ba5 Ra5 15.Nb5=) 14.a4 (14.Nb5 Ne8=) 14...Bd7 (14...Be6 15.a5 Nbd7 16.Nb5+=) 15.Be2 White prepares the advance b5 (15.Ba3=) 15...h5 (15...Qg5 16.g4 Rad8 17.h4+/–) 16.b5 (16.a5 Nc8+=) 16...Qg5= 17.g3 Be6 (17...Nc8 18.h4 Qf5 19.0–0=) 18.a5 (18.Ba3 Ba3 19.Qa3 Rfc8=) 18...Nbd7 (18...Nc8 19.Ba3=) 19.Ba3 Ba3 20.Qa3 Rfc8 21.Nb3 White plans a6 (21.Rc2 h4 22.Nf1 b6=) 21...b6 (21...h4 22.Qd6=) 22.a6 (22.Qd6 Rab8=) 22...h4 (22...Rc7 23.Nd1 Rac8 24.Rc7 Rc7 25.Qe7=) 23.g4 (23.Qd6 Ne8 24.gh4 Qe3+= (worse is 24...Nd6 25.hg5 Rc7 26.Kd2+/–)) 23...Rc7+= 24.Na2 Rc1 (24...Rac8 25.Rc7 Rc7 26.Qe7+=) 25.Qc1 Ne8 26.Nb4 Qe7 (26...Nf8 27.Nc6=) 27.Qa3 (27.Nc6 Qd6=) 27...f5 (27...Rc8 28.Qa4=) 28.gf5 (28.Nd2 Ndf6=) 28...Bf5 29.Qa4 Ndf6 30.Nc6 Qe6 (30...Qd7 31.Qb4=) 31.Qb4 Qd6 (31...Nd6 32.Nd2=) 32.Ne7 (32.Qd6 Nd6 33.Rg1 Bh3+=) 32...Kf8 33.Qd6 Nd6 34.Nf5 Nf5 35.Kd2 Rc8 36.Nc1 (36.Bg4 g6=) 36...Nd6 37.Na2 Nc4 38.Bc4 Rc4 39.Rb1 (39.Rf1 Ke7=) 39...Ng8 (39...Rc7 40.Nb4+=) 40.Rg1 Nf6 41.Rb1 (41.Rg5 Ra4 42.Nc3 Rb4+/–) 41...Ng8 42.Nc3 Nf6 (42...Ne7+=) 43.f4 (better is 43.Rf1!?+=) 43...ef3+= 44.Kd3 Rc3 (44...f2!? 45.Rf1 Ke7+=) 45.Kc3= Ne4 46.Kd3 f2 47.Rf1 Kf7 48.Ke2 Ng3 49.Kf2 Nf1 50.Kf1 Kf6 51.Kg2 Kf5 52.Kf2 (better is 52.Kf3 g6 53.Kf2–/+) 52...Ke4–+ 53.Ke2 g6 54.Kf2 Kd3 55.Kf3 Kc4 56.Kf4 (56.e4 Kd4 57.ed5 Kd5 58.Kg4–/+) 56...Kb5 57.Ke5 (57.e4 de4 58.d5 g5 59.Ke4 Ka6–+) 57...Kc6 (57...g5 58.e4 de4 59.Ke4 g4 60.hg4 h3–+) 58.Ke6 b5 59.e4 de4 60.d5 Kc7 61.Ke7 e3 62.d6 Kc6 63.d7 e2 64.d8Q Threatening mate: Qd6 64...e1Q 65.Kf7 Qg3 66.Qa8 (66.Qf6 Qd6 67.Qh4 Kb6–+) 66...Kb6 67.Qb7 Ka5 68.Qa7 Qd6 (68...Qh3 69.Qb7 Qf5 70.Kg7 Qe5 71.Kh7 Qh5 72.Kg7 Qe5 73.Kh7 Qh5 74.Kg7 Qe5=) 69.Qa8 Qa6 70.Qd8 Qb6 71.Qa8 Qa6?? (better is 71...Kb4 72.Qe4 Kc3 73.Qe1 Kc2 74.Qe2 Kb3 75.Qd1 Kb2 76.Qd2 Ka3 77.Qc1 Ka4 78.Qa1 Kb4 79.Qe1 Kc4 80.Qc1 Kd5 81.Qg5 Kc6 82.Qh4 Kd5–/+) 72.Qd8= Qb6 73.Qa8 Kb4 74.Qe4 Ka3 75.Qd3 Ka4 76.Qc2 Kb4 (better is 76...Ka5 77.Qa2 Kb4 78.Qd2 Kc4 79.Qc2 Kd5 80.Qg2 Kd6 81.Qg6 Kc7–+) 77.Qe4= ½–½. Felecan,Florin – Halkias,Stelios, EU–ch U14 Szombathely, 1993.

8.c4 Be7 9.Nc3 a6 10.Qb3 0–0 11.b5 ab5 12.cb5 c5 13.Na4 (13.dc5 Nc5 14.Qc2 Be6–/+) 13...c4–/+ 14.Qc2 Ng4 15.h3 Qh6 (15...Nf2!? 16.Kf2 Bh4 17.Kg1–+) 16.Be2 Ndf6 (16...Ngf6 17.0–0–/+) 17.Nf1 (17.Nb6 Ra5+=) 17...Bd6 18.Bc3 Qh4 19.g3 Qh6 20.Bb4 (better is 20.Nb6 Ra3 21.Ra3 Ba3 22.Nc8 Rc8 23.Qd1 Nf2 24.Kf2=) 20...Bb4–/+ 21.ab4 Ne8 22.Ra2 f5 (22...Ngf6 23.Nc5 Ra2 24.Qa2–/+) 23.Nc5 (23.Nc3 Ra2 24.Qa2 Be6=) 23...Ra2–/+ 24.Qa2 b6 25.Na6 (25.Na4 Nc7 26.Nb6 Qb6 27.hg4 fg4 28.Qa5 Qb5 29.Nh2–/+) 25...Nd6 (better is 25...Rf7!?–+) 26.Nc7+= Bb7 27.Qa7 c3 28.Qb6?? (better is 28.Bd1 Nf6 29.Qb6=) 28...Rc8 (better is 28...c2 29.Kd2 Nf2–+) 29.hg4+/– Qh1 (better is 29...c2!? 30.Rh6 c1Q 31.Bd1 Qc3 32.Nd2 Nc4 33.Qb7 Qd2 34.Kf1 Qd1 35.Kg2 Ne3 36.fe3 Qe2 37.Kh3 Qf1 38.Kh2 Qf2 39.Kh1 Qe1 40.Kg2 Qe2 41.Kh1 Qf3 42.Kh2 Qf2 43.Kh1 Qe1 44.Kg2 Qe2=) 30.Qd6+– c2 31.Kd2 c1Q 32.Kc1 Qh6 33.Qh6 Rc7 (33...gh6?? 34.b6 fg4 35.Bg4+–) 34.Kb2 (better is 34.Qc6! Bc6 35.bc6 Rc6 36.Kd2 fg4 37.Bg4+–) 34...gh6 35.gf5 Kf7 (35...Rf7 36.Bg4+–) 36.g4 Kf6 (better is 36...h5 37.g5 h4+–) 37.Ng3 Kg5 38.Nh5 Bc8 39.Ng3 (39.Nf4!? Rf7+–) 39...Kh4?? (39...Bb7 40.Kb3 Rc1+–) 40.Kb3+– Kh3 41.Bf1?? (41.b6 Rf7 42.Kc3 Kg2+–) 41...Kh2?? (41...Kg4 42.b6 Rf7 43.Be2 Kh3 44.Bb5=) 42.Ka4?? (better is 42.b6 Rf7 43.Bb5+–) 42...Kg1 (42...Ra7 43.Kb3 Rc7+–) 43.b6+/– Rc1?? (43...Re7!? 44.Bh3 Kh2 45.Ne4 Re4+=) 44.f6 (better is 44.Ne2 Kf1 45.Nc1 Kf2 46.f6 Ke3 47.f7 Kd4 48.f8Q+–) 44...Bd7? (44...Rc6 45.Nh5 Rb6 46.f7 Bd7 47.Ka5=) 45.Kb3 (better is 45.Bb5 Bb5 46.Kb5+–) 45...Rc8+/– 46.b7 (46.Ba6 Rb8 47.f3 ef3 48.b7+=) 46...Rb8+= 47.Ba6 (47.Bc4 dc4 48.Kc4 Kf2 49.Ne4 Ke3+/–) 47...Kf2= 48.Nf5 (better is 48.Nh5 Ke3 49.Kc3+=) 48...Bf5–/+ 49.gf5 h5 (49...Ke3 50.f7 Kd2 51.Ka4+/–) 50.f7 h4 (50...Ke3?? 51.Bb5 Kf2 52.Be8+–) 51.Bb5 h3 (51...Ke3?? 52.Be8 Kd2 53.f8Q+–) 52.Be8 h2 53.f8Q h1Q 54.Qc5 (54.Qe7 Qd1 55.Ka3 Qd3 56.Kb2 Qe2 57.Kb1 Qd1 58.Kb2 Qd2 59.Kb1 Qe3 60.Qh4 Qg3 61.Qe7 Qb3 62.Ka1 Qc3 63.Ka2 Qc4 64.Ka3 Qd3 65.Ka4 Qa6 66.Kb3 Rb7 67.Qh4 Ke3 68.Qg3 Kd2 69.Qc3 Ke2 70.Bh5 Kf2 71.Qd2 Kf1 72.Qf4 Kg2 73.Qg5 Kh3 74.Qg4 Kh2 75.Qf4 Kg1 76.Qe3 Kh1 77.Qc1 Kg2 78.Qg5 Kf2 79.Qd2 Kg3 80.Qg5 Kf2 81.Qd2=) 54...Qb1 (54...Ke3 55.Qc3 Ke2 56.Bb5 Kf2 57.Qc2 Kg3 58.Qc7 Kf3 59.Kc2–/+) 55.Ka4 Rb7 (55...Re8 56.Qc8 Qa2 57.Kb5 Qc4 58.Qc4 dc4 59.Kc4–+) 56.Bc6 (56.Ka5–+) 56...Qa2 0–1. BlueNoteTokyo (2135) – Nehedan (2250), ICC, 2003.

8.c4 Be7 9.Be2 =.

7.Nfd2 g6

8.c4= a5 9.Qa4 =.

8.c4 c6

9.Nc3 Bg7

10.Qb3 0–0= 11.Rc1 Re8 (11...a5 12.cd5 cd5 13.ba5 Ra5 14.Bb5=) 12.cd5 Nd5 (better is 12...cd5!? 13.Bb5 a6=) 13.Nce4 Qe7 14.Be2 f5 15.Nc3 N7f6 16.0–0 (16.Nd5 Nd5 17.b5 Qe6+/–) 16...Be6 17.Qc2 Rad8 18.Rfe1 Kh8 19.Nd5 Bd5 20.Qc5 (20.Bc4+/–) 20...Qc7 (better is 20...Qc5!? 21.bc5 b5+/–) 21.g3 (better is 21.Qa7!? Ng4 22.Bg4+–) 21…Nd7?? (better is 21...a6+/–) 1–0. Bott,Hans Joachim – Geib,Thorsten, Hockenheim Baden–ch HT1, 1994.

10.cd5 cd5 11.Nb5 Qb6 12.Rc1 0–0 13.Be2 Ne8 14.0–0 Ndf6 15.f4 (15.Nc3 Nd6+=) 15...Bd7 (15...Bg4 16.Bg4 Ng4 17.Qg4 Qb5 18.Qg3=) 16.Nc3 (16.Rc5 Rc8+=) 16...Nd6 (16...Rc8 17.g4 Nc7 18.g5=) 17.Qb3 Be6 18.h3 (18.Na4 Qd8=) 18...Nf5 19.Nd1 (19.Na4!? Qd6 20.Kh2=) 19...Rfc8 (19...Ng3 20.Rf2–/+) 20.Nf2 (20.Rc8 Rc8 21.Kh2 Qc6–/+) 20...a5 (20...Ng3 21.Rc8 Rc8 22.Re1–/+) 21.Rc8 Rc8 22.Rc1 Rc1 23.Bc1 Qc6 24.Qb2 ab4 25.ab4 Ne3 26.Nde4 de4 (26...Ne4 27.Be3) 27.Be3–+ Nd5 28.Qd2 Qb6 (29.Nd1 Ne3 30.Ne3 Bd4–+) 0–1. Weber,Krzysztof – Wojnar,M, corr Poland, 1993.

10.cd5 cd5 11.Be2 0–0 =.

10.Be2 0–0 +=.

7.Ne5 Be7

8.c4 0–0 9.Nc3 a5 =+.

8.c4 0–0 9.Nd2 a5 10.c5 Qe6 11.Bb5 =+.

8.c4 0–0 9.Nd2 c6 10.Rc1 (10.cd5 cd5 (worse is 10...Qd5 11.Bc4 Qd6 12.Qb3+/–) 11.Be2 a5=) 10...Qe6 11.cd5 cd5 (worse is 11...Qd5 12.Bc4 Qd6 13.Qb3+/–) 12.Nd7 (12.Be2 Bd6=) 12...Bd7+= 13.Be2 Rfc8 14.0–0 Rc1 15.Bc1 (15.Qc1 Bd6+=) 15...Rc8 (15...Bd6 16.Bb2+=) 16.f3 Bd6 17.fe4 Ne4 18.Ne4 de4 19.Qd2 (19.Bh5 f5 20.Be2 b5+=) 19...Qh6–/+ 20.g3 Qg5 21.Kg2 h5 22.Bd1 h4 (22...Be6 23.Bc2–/+) 23.Qf2 (23.Bb3!? Rf8 24.Qf2+=) 23...Be6–/+ 24.Bb2 Rc7 25.Re1 f5 (25...b5 26.Rf1–/+) 26.Rf1 (26.Rh1 Rf7 27.Qe1 f4 28.ef4 h3 29.Kf1 Bf4 30.Qf2 Be3 31.Qf7 Bf7 32.Ba1 Bc4 33.Be2 Qf6 34.Ke1 Qf2 35.Kd1 Qe2) 26...Rf7 (26...Bc4 27.Rh1–/+) 27.Qe1 Bd5 (27...hg3 28.hg3 Rf6 29.Rh1–/+) 28.Bc1 hg3 29.hg3 Rf6 30.Rh1 f4 31.ef4 e3 32.Bf3 (32.Kg1 Rh6 33.Rh6 Qh6 34.Qe3 Qh1 35.Kf2 Qd1–+) 32...Bf4 (32...Bf4 33.Bd5 Qd5 34.Kg1 Qf3–+) 0–1. DaveMC – mrkt, ChessWorld.net, 2006.

8.c4 0–0 9.Nd2 c6 10.cd5= cd5 11.Rc1 a5 12.b5 Re8 (12...Rd8 13.Be2=) 13.Be2 Qb6 (13...Qe6 14.0–0=) 14.0–0 a4 (14...Bd6 15.Nd7 Bd7 16.Qa4=) 15.f4 Bd6 (15...Qd6 16.f5=) 16.Kh1 (16.Qc2 Rd8=) 16...h6 (16...Re7 17.Qc2=) 17.Qe1 Re7 (17...Qa5 18.Kg1=) 18.Rc3 (18.Qg3 Rb8+=) 18...Bc7 (18...Qa5 19.Kg1=) 19.h3 (19.Qg3 Bd6+=) 19...Bd6 20.Kg1 (20.Qg3 Rb8+=) 20...Re8 (20...Qa5 21.Rc2=) 21.Kh1 (21.Qg3 Rb8+=) 21...Ra7 (21...Re7 22.Qg3+=) 22.Rc1 (22.Qg3 Rd8+=) 22...Be7 (22...Qa5 23.Kg1=) 23.Kg1 (23.Qg3 Qd6+=) 23...Ra8 (23...Qe6 24.Qg3=) 24.Rc2 Bd6 25.Kh1 (25.Qg3 Rb8+=) 25...Re7 26.Qh4 Qd8 (26...Re8 27.Rfc1+=) 27.Rfc1 Re8 (27...Nb6 28.Kg1+=) 28.Kg1 Qe7 29.Nd7 (29.Rc3 Qe6+=) 29...Bd7= 30.Rc3 Ra5 (30...Rac8 31.b6=) 31.b6 Qd8 32.Rc7 Bc7 33.Rc7 (33.bc7 Qc8+=) 33...Re6 (33...Bb5 34.Bc3 Be2 35.Ba5=) 34.Bg4 (34.Bc3 Ra8 35.Rb7 Rb6 36.Rb6 Qb6–+) 34...g5 (34...Re7 35.Be2 Be6 36.Bc3–/+) 35.fg5 Rb6 (35...Ng4?! 36.Qg4 Rd6 37.Qg3 Rb6 38.gh6 Rg6 39.Qf4+=) 36.Qh6?? (36.Bc3 Raa6 37.Qg3 Ng4 38.hg4–+) 36...Rb2 (36...Qc7 37.gf6 Rf6 38.Qf6 Bg4 39.Qg5 Kf8 40.Qg4 Qc2–/+) 37.gf6= The mate threat is Qg7 37...Qf8?? (37...Rb1 38.Nb1 Qf8 39.Qf8 Kf8 40.Bd7 Ra8+–) 38.Qf8+/– Kf8 39.Bd7 Ra8 40.Nf1 Rb3 41.Bc8 b6 (41...Rb8 42.Kf2+–) 42.Bb7 Re8?? (42...Rd8+–) 43.Bd5 Ra3 44.Rf7 Kg8 45.Rg7 Kh8 46.f7 Rf8 47.Rg8 Kh7 48.Rf8 Ra1 49.Rh8! Kg6 (49...Kh8 Decoy theme: h8 50.f8Q A classical mating theme) 50.f8Q Rf1 51.Kf1 b5 52.Qf7 Kg5 53.Rh5 1–0. SuperForte5 – KnightStalker, 1993.

8.Be2 0–0 =+.

6.Be2 a5

7.b5 Be7+= 8.d3 0–0 9.Nbd2 Ne8 (9...b6!?+=) 10.c4+= c6 (10...b6 11.0–0+=) 11.cd5 (11.a4 Qe6+=) 11...cd5= (worse is 11...cb5 12.e4+/–) 12.a4 (12.0–0 Qe6+=) 12...Qg6 (12...b6 13.0–0=) 13.Ne5+= Ne5 14.Be5 Qg2 15.Bf3 Qg5 16.d4 Bd6 (16...Nf6!?+=) 17.Bd5+/– Be5 18.Nf3 (18.de5?! Qe5 19.Nf3 Qe7+=) 18...Qd8 (18...Qe7 19.Ne5 Nf6 20.Bg2+/–) 19.de5 Nc7 (19...Qe7 20.0–0+/–) 20.Be4+– Qe7 21.Qd6 Re8 (21...Qd6 22.ed6 Ne8 23.d7 Bd7 24.Bb7+–) 22.Qe7 Re7 23.Rc1 (23.Rd1 Ne6+–) 23...Ne6 (23...Rb8 24.Ke2+–) 24.Nd2 (24.Rg1 Rb8+–) 24...Ng5 (24...Rb8 25.Ke2+–) 25.f4 Ne4 26.Ne4 Be6 27.Rg1 b6 (27...Kf8 28.Nd6+–) 28.Rc3 (28.Kf2 Rd8+–) 28...g6 (28...Kf8 29.Nd6+–) 29.Kf2 Rd8 (29...Kg7 30.Nd6 Kf8 31.e4+–) 30.Rgc1 (30.Rc6 Rb7+–) 30...h5 (30...Kg7 31.Nd6+–) 31.h4 Kf8 32.Nd6 f6? (32...Red7+–) 33.ef6 Red7 34.Ne4 Bf5 (34...Bg4 35.Rc6+–) 35.Kf3 (35.Ng5 Rd2 36.Kg3 Bd7+–) 35...Bg4 (35...Kf7 36.Rc7 Bg4 37.Kf2+–) 36.Kg3 Bd1 (36...Rd1+–) 37.Ng5 Ba4 (37...Ke8 38.Rc8 Bb3 39.R1c6+–) 38.Ne6 Kf7 (38...Ke8 39.Nd8 Rd8 40.Rc7+–) 39.Nd8 Rd8 (39...Kf6 40.Rc6 Ke7+–) 40.Rc7 Kf6 41.R1c6 Kf5 (41...Rd6 42.Rd6 Kf5 43.Re7 Bb5 44.e4) 42.Re7 1–0. Saradjen,Janko – Jeric,Simon (2315), Ljubljana, 1992.

7.c3 e4 8.Nd4 Ne5 9.h3 Be7 10.0–0 1–0. alignment – Ogopogoman, ChessWorld.net, 2011.

7.Nc3 ab4 8.Nb5 Qb6 9.ab4 +/–.

7.Nc3 c6 =.

6.Be2 c6

7.0–0 Be7 8.c4 0–0 9.Nc3 Ng4 10.c5 Qc7 11.d4? (better is 11.Ne1!? Ngf6 12.d4=) 11...e4–/+ 12.Nd2?? (better is 12.Ne5 Nge5 13.de5 Ne5 14.Qd2–/+) 12…Qh2 0–1. Neumann,Frank – Schalkwijk,Peter, OP–2011–0–01611, 2011.

7.d3 a5 8.ba5 Be7 (8...Ra5 9.0–0+=) 9.Nbd2 (9.Bc3 Qe6=) 9...Ra5+= 10.0–0 0–0 11.c4 Qb8 (11...b5 12.cd5 Qd5 13.a4=) 12.Qc2= Re8 (12...b6 13.Rfc1=) 13.Rfc1 (13.Qc3 Ra6=) 13...Bf8 (13...b5 14.cd5 cd5 15.d4=) 14.cd5 (14.d4 e4 15.Ne5 Bd6 16.cd5 cd5=) 14...cd5 15.Qc7 e5 draws heavy fire 15...Qc7 16.Rc7 Bd6 17.Rc2 Nb6 18.h3 (18.d4 Bf5 19.Bc3 Ra3 20.Ra3 Ba3=) 18...Bd7 (18...Bf5 19.Rb1 Nfd7 20.e4=) 19.d4 (19.Bc3 Ra7=) 19...e4 20.Ne5 Ba4 21.Bc3 Ra7 22.Rb2 Nc8 (22...Nbd7 23.Rab1=) 23.Bb5 (23.Bb4 Be5 24.de5 Re5=) 23...Re7 (23...Bb5 24.Rb5 Ra3 25.Ra3 Ba3 26.Rb7=) 24.Ba4 (24.Bf1 Nd7=) 24...Ra4 25.Bb4 Ne8 (25...Rc7 26.Bd6 Nd6 27.Rb6+=) 26.Rc1 Ra8 (26...Rc7 27.Rc7 Bc7 28.f3+=) 27.Ng4 (27.Rbc2 Nb6=) 27...f6 (27...b5 28.Ne5=) 28.Nh2 (28.Rbc2 Nb6=) 28...Rc7 29.Rc7 Nc7 30.Nhf1 (30.f3 Bb4 31.ab4 Nd6=) 30...Kf7 (30...Bb4 31.ab4 Nd6 32.f3+=) 31.Nb1 (31.f3 Bb4 32.ab4 ef3 33.gf3 Nd6+=) 31...Ke6 (31...b5 32.Rc2 Ke6 33.f3+=) 32.Nfd2 Kd7 (32...b5 33.Bc5+=) 33.Nb3 (33.f3 f5=) 33...Bb4+= 34.ab4 b6 35.Kf1 (35.Nc3 Ra3+=) 35...Nb5 36.g4 (36.Ke2 Ra4–/+) 36...Ra4 (36...Ne7 37.Kg2–/+) 37.Nc1 Ra1 (37...Ncd6 38.Na2–/+) 38.Nb3+= Ra7 39.f3 Ncd6 (39...ef3 40.N3d2–/+) 40.N3d2 (40.Kf2 ef3 41.N3d2 Ra4–/+) 40...ef3 (40...Nc4 41.Rb3 ef3 42.Nf3–/+) 41.Kf2 Ne4 (41...Ra4 42.Kf3 Nc4 43.Nc4 dc4 44.Ke2–/+) 42.Kf3+= Nbd6 (42...Ned6 43.Kf4+=) 43.Ne4 Ne4 44.Ke2 (44.Nd2 Nd2 45.Rd2 Kc6+=) 44...g5 (44...Ra1!? 45.Kd3 Ke7–/+) 45.Nd2= Nd6 46.Kf3 (46.Rb1 Ra2 47.Kd3 Ra3 48.Rb3 Rb3 49.Nb3 Ne4=) 46...Kc6 47.Rc2 (47.Nb1 Kb5+=) 47...Kb5 48.Nb1 Ra1 (48...Kb4 49.Rb2 Kc4 50.Nd2 Kd3 51.Rb6–/+) 49.Nd2 (49.Nc3 Kc4 (49...Kb4? 50.Nd5 Kb5 51.Nc7 Kb4 52.Rc6+–) 50.Ne4 Kb3 51.Nd6 Kc2–+) 49...Rh1 (better is 49...h6–/+) 50.e4? (better is 50.Kg2 Rd1 51.Kf3–/+) 50...Rh3–+ 51.Kg2 (51.Ke2 Ne4 52.Ne4 de4–+) 51...Rh4 52.e5 (52.Kf3 de4 53.Ne4 Ne4 54.Ke4 Rg4 55.Kd5 h5–+) 52...Rg4 53.Kf3 (53.Kh1 fe5 54.de5 Nf5–+) 53...Rf4 54.Ke3 (54.Kg2 Nf5 55.Ra2–+) 54...Nf5 55.Kd3 fe5 (55...fe5 56.de5 Rh4–+) 0–1. Saradjen,Janko (2180) – Kozul,Zdenko (2595), Ljubljana op 4th, 1993.

7.d4 e4=+ 8.Nfd2 b5 9.0–0 a5 =+.

7.d4 e4 8.Nfd2 b5 9.Nb3 Qc7 10.Nc5 Bd6 (10...a5 11.0–0+=) 11.h3 (11.a4 ba4 12.c4 a5+=) 11...0–0 (11...a5 12.0–0+=) 12.Nc3 (12.a4 ba4 13.Ra4 Rb8=) 12...a5–/+ 13.Na2 1–0. Algy – Egor, playchess.de, 2002.

7.d4 e4=+ 8.Nfd2 b5 9.Nb3 Qc7 10.N1d2 Bd6 11.h3 0–0 12.0–0 Rb8 (12...a6 13.Nc5=+) 13.Re1 Rd8 14.Nc5 (14.Rf1 Bh2 15.Kh1 Rb6=) 14...Nc5 (14...a5 15.Rf1=+) 15.dc5 Be5 16.Be5 Qe5 17.Nb3 Qg5 18.Kf1 Nd7 19.a4 ba4 20.Ra4 Qe5 (20...Ne5 21.Nd4=) 21.Kg1 Qg5 22.Kf1 ½–½. Sternik,Ryszard – Pech,Jaroslav, corr or01–012 E–mail, 2001.

7.d4 e4=+ 8.Nfd2 Qc7 9.0–0 =+.

6.Be2 Be7

7.0–0 0–0 8.c4 dc4 9.Bc4 a5 (9...e4 10.Nd4 Nb6 11.Be2= a5 12.b5 Rd8 13.Qc2=) 10.b5 (10.d3 ab4 (10...c6 11.b5 cb5 12.Bb5 b6 13.Nbd2+=) 11.ab4 Ra1 12.Ba1 c6= 13.b5=; 10.ba5 e4 11.Nd4 Ne5 12.Be2 Neg4 13.f4+=; 10.Qc2 ab4 11.d3 Nd5 12.Rd1 ba3 13.Na3+=) 10...e4 11.Nd4 Ne5 12.Nf5?? (better is 12.Be2+= c5 13.bc6+=) 12...Bf5–+ 13.Nc3 (13.Be2–+) 13...Nc4 (13...Nc4 14.Qc2 Rfd8–+) 0–1. Arkantos (1690) – pierre (2170), internet, 2008.

7.0–0 0–0 8.c4 c6 9.Qc2 (9.c5 Qe6=) 9...e4 (9...dc4!? 10.Qc4 e4+=) 10.c5= Qc7 11.Nd4 Ne5 12.f4 ef3 13.Bf3 Nfg4 14.Bg4 Ng4 15.Nf3 f6 16.Nc3 Be6 17.Ne2 Bf7 18.Ng3 Rfe8 19.Bd4 a6 (19...Bg6 20.Qc3=) 20.Rae1 Bg6 21.d3 Rad8 22.Qd1 (22.Nh4 Bf7+=) 22...Ne5= 23.Be5 fe5 24.d4 ed4 25.ed4 (worse is 25.Nd4 Bh4+=) 25...Bf6 26.Re8 Re8 27.Re1 Re7 (27...Qf4 28.Re8 Be8 29.Qa1=) 28.Re7 Qe7 (worse is 28...Be7 29.Ne5+=) 29.Qe2 Qe2 30.Ne2 Kf7 31.Kf2 Bh5 32.Neg1 Ke6 33.Ke3 Kf5 34.h3 Bf3 35.Nf3 (35.gf3 Bg5 36.Kd3 Kf4–+) 35...h5 36.g3 Bg5 37.Ng5 Kg5 38.Kf3 Kf5 39.g4 Kg5 40.Kg3 h4 41.Kf3 Kf6 42.Kf4 g5 ½–½. Alexandr,Petr (1665) – Kozelsky,Marek (1930), Ostrava CZE, Ostravsky Konik, 2014.

7.Nc3 a6 =.

7.c4 dc4 8.Bc4 0–0 9.0–0 Re8?? (better is 9...e4 10.Nd4 Nb6=) 10.Qb3+/– Rf8 11.Ng5 Nb6? (better is 11...Nd5 12.Nf7 Kf7 13.Bd5 Kg6 14.Be4 Kh6+/–) 12.Nf7+– (12.Bf7 Kh8 13.Be6 e4 14.Nf7 Rf7 15.Bf7 Ng4+=) 12...Rf7 13.Bf7 Kh8 14.Qc3 e4 15.Bb3 Bf5 16.Rc1 c6 17.Bc2 Bf8 18.g3 (18.f3 Nbd5 19.Qd4 Qe6+–) 18...Rd8 19.Qd4 Qc7 20.Qe5 Qe5 21.Be5 Nc4 (21...Bg6 22.f3!+–) 22.Bd4 b5 (22...Bd6 23.Be4! Ne4 24.Rc4+–) 23.Bb3 Be6 24.Ba7 Ng4 (24...Be7 25.Bd4+–) 25.Nc3 1–0. Machete99 (2190) – builder (1820), ICC, 2002.

7.c4 dc4 8.Bc4 0–0 9.Nc3 c5 10.bc5 Qc5 11.Bb3 e4 12.d4 Qh5 13.Nd2 Qg6 14.0–0 Nb6 15.f3 Qh6 16.Nde4 (16.Qe2 ef3 17.Nf3 Be6 18.Be6 fe6=) 16...Qe3 17.Kh1 Qh6 (17...Rd8 18.Re1 Qf4 19.Bc1 Ne4 20.Bf4 Nf2 21.Kg1 Nd1 22.Red1+=) 18.Qc1 (18.Re1 Bf5=) 18...Qg6 19.Nf6 (19.Re1 Ne4 20.fe4 Bg4=) 19...Bf6 20.Ne4 Rd8 (20...Bd8 21.Rd1+=) 21.Nf6+= Qf6 22.Re1 Bf5 23.Qe3 (23.Qc7 Be6 24.Be6 fe6 25.Qb7 Na4+=) 23...Bd7 (23...Rac8 24.Qe7+=) 24.Qe5 Qe5 (24...Qh6 25.Qe7 Rf8 26.Qe3+=) 25.Re5 (worse is 25.de5 Be6 26.Be6 fe6=) 25...Bc6 26.Re7 (26.Rc1 Bd5 27.Bd5 Nd5=) 26...Nd5 27.Bd5 Bd5 28.Rae1 Rac8 29.a4 (29.Kg1 f6=) 29...g5 30.h3 (30.R1e2 a5=) 30...Rc2 31.R1e2 Re2 32.Re2 Kg7 33.Kh2 Kg6 34.h4 (34.Kg3 f5=) 34...h6 (34...gh4 35.Kh3+=) 35.Re7 (35.Kg3 f5=) 35...Rd6 (35...Rc8 36.Re2+=) 36.a5 (36.hg5 hg5 (worse is 36...Kg5 37.Ba3 Rf6 38.a5+=) 37.Kg3 f5=) 36...Re6 37.Rd7 (37.Re6 fe6 38.Kg3 Kh5=) 37...Bf3+= 38.gf3 Re2 39.Kg3 (39.Kh3 Rb2 40.d5 gh4 41.Kh4 Rb5–/+) 39...gh4–/+ 40.Kh4 Rb2 41.d5 Rb5 42.d6 a6 (42...Kf6 43.Re7–/+) 43.Rd8 (43.Kg4 Kf6–/+) 43...Rd5 (43...Ra5 44.Rg8 Kf5 45.d7+–) 44.Rb8 Rd4 (44...Ra5 45.d7 Ra4 46.Kg3+–) 45.Kg3 Rd6 46.Rb7 Kh5 47.Rf7 (47.Rb6 Re6–/+) 47...Rd5 48.Rf6 (48.Kf4 Ra5 49.Rd7 Rb5–/+) 48...Ra5 49.f4 (49.Rd6 Kg5–/+) 49...Ra3–+ 50.Kf2 a5 51.Ra6 (51.Ke2 a4–+) 51...Kg4 52.Rh6 Kf4 53.Ke2 Ke4 (53...a4 54.Rh4 Ke5 55.Kd2+=) 54.Kd2–/+ Kd4 55.Rh4 Kc5 56.Rh5 Kc6 (56...Kc4 57.Rh4 Kb5 58.Rh5 Kc6 59.Rh6 Kc7 60.Kc2–/+) 57.Rh6 Kd5 58.Rh5 Kc4 59.Rh4 Kb5 60.Rh5 Kb6 61.Rh6 Kc7 62.Rh7 Kd6 63.Rh6 Ke5 (63...Kd7!?–/+) 64.Rh5+= Kf4 65.Kc2 a4 66.Kb2 Rb3 67.Ka2 Kg4 (67...Ke4 68.Rh4 Kd5 69.Ra4=) 68.Ra5 Rb4 (68...Kf3 69.Ra4 Rb8 70.Ka3=) 69.Ra8 (69.Ka3 Rb1=) 69...Kf5 70.Ka3 The isolani on a4 becomes a target 70...Rb1 (70...Re4 71.Ra4 Re1 72.Kb3=) 71.Rf8 ½–½. Pierred (2145) – Syl17 (2390), Rated game, 2m + 0s, 2005.

7.c4 c6 8.cd5 cd5 9.d4 e4 10.Nfd2 0–0 11.0–0 Ne8 12.Nc3 f5? (12...a5 13.b5=) 13.Nb5 (Better is 13.Nd5!? Ndf6 14.Nf4–/+) 13...Qb8 14.Rc1 a6 15.Nc3 Ndf6 16.Nb3 f4 17.ef4 Qf4 18.g3 Qd6 19.Re1 g6 20.f3 ef3 21.Bf3 Ng7 (Better is 21...Nc7!?+=) 22.Re5–/+ Be6 23.Nc5 Bf7 24.Nb7 Qc7?? (24...Qd7 25.Nc5 Qd8+–) 25.Nd5 Qb7 (25...Nd5 26.Rc7 Nc7 27.Re7+–) 26.Ne7 (26...Qe7 27.Re7+–) 1–0. Bonetti,Shane – Extrasolid (2100), ICC, 2002.

7.c4 d4 8.ed4+= ed4 9.Nd4 0–0 10.0–0 Ne4 (10...Qf4 11.Nf3+=) 11.Nb5 Qb6 12.d4 c6 13.c5 Qd8 14.N5c3 Nc3 15.Nc3 Bf6 16.Qc2 a5 (16...Bd4 17.Rad1 Be5 18.f4+/–) 17.d5 ab4 18.ab4 cd5?? (18...Ra1!? 19.Ra1 Be5+/–) 19.Nd5 (better is 19.Ra8 Ne5+–) 19...Bb2?? (better is 19...Ra1 20.Nf6 Nf6 21.Ra1 Qe7+–) 20.Ra8 (20.Qb2?! Ra1 21.Ra1 Nc5 22.Nf6 Qf6 23.Qf6 gf6 24.bc5 Be6+/–) 20...Be5 (20...Bf6 21.Bg4+– (< 21.Nf6 Nf6 22.Qd3 Qc7+–)) 21.Rd1 (21.Rc8!? Bh2 22.Kh1 Qh4 23.Rf8 Nf8+–) 21...Qg5 22.g3 h5 (22...Bf6 23.f4 Qg6 24.Qg6 hg6 25.Bb5 Nc5 26.bc5+–) 23.Qe4 (better is 23.h4 Qf6 24.Nf6 Nf6+–) 23...Qh6 (23...Bf6 24.f4 Qg6 25.Qg6 fg6 26.Bc4+–) 24.f4 (better is 24.Ne7 Kh8 25.Rd7+–) 24...Bf6 25.Qf3 (25.Bb5 Nc5 26.bc5 h4+–) 25...g6 (25...h4 26.g4 Qg6 27.Bd3+–) 26.f5 (26.Bb5 Qh8 27.Qe3 Nb6 28.Nb6 Kg7+–) 26...Bg7 (26...Qg7+–) 27.f6 (27.Ne7 Kh7 28.Nc8 Ne5 29.Qb7 Qe3 30.Kf1 h4+–) 27...Bh8 (27...Bf6 28.Nf6 Nf6 29.Qf6 Qe3 30.Qf2+–) 28.Ne7 Kh7 29.Rc8 Rc8 30.Nc8 Nf6 31.Ne7 (better is 31.Nd6 Ng4 32.Qf7 Bg7+–) 31...Ng4 (31...h4+–) 32.Qf7 Qg7 33.Qg7 Bg7 (33...Kg7 34.Rd7 Kf7 35.Rb7+–) 34.Bg4 (34…hg4 35.Rd7+–) 1–0. revbodio1 – more, Live Game Caissa's Web, 2004.

7.d3 0–0=+ 8.c3 (8.0–0 Rd8=+) 8...c5 (8...Re8 9.0–0=+) 9.b5 (9.d4 b6=+) 9...e4 (9...a6 10.d4–/+) 10.Nfd2 (10.de4 de4 11.Qd6 Bd6=+) 10...b6 (10...Ne5 11.de4 de4 12.0–0–/+) 11.c4 (11.de4 de4 12.Qc2 Qe6=+) 11...Ne5 (11...ed3 12.Bd3 Ne5 13.Be2=+) 12.d4 (12.de4 de4 13.0–0 Rd8=+) 12...Nd3 13.Bd3 ed3 14.0–0 Ng4 15.g3 Bf6 (better is 15...Rd8!?–/+) 16.Nc3 (16.Qf3 Be6 17.h3 Nh6 18.dc5 Qc5 19.Bf6 dc4+/–) 16...cd4 (16...dc4 17.Nc4 Qd7 18.Qd3 cd4 19.ed4 Bd4 20.Rad1=) 17.Nd5 de3 18.Nf6 (18.Ne4 e2 19.Nd6 ed1Q 20.Nf6 Nf6 21.Rfd1 Ne8 22.Ne8 Re8 23.Rd3 Be6+=) 18...gf6 (18...Nf6 19.fe3 Bg4 20.Qa4=) 19.Ne4 ef2 (19...Qe7 20.Qf3 f5 21.Nf6 Nf6 22.Qa8 e2–+) 20.Rf2+/– Nf2 21.Kf2 Bb7?? 22.Qg4 Kh8 23.Bf6 Qf6+– 24.Nf6 h6 25.Qf5 Kg7 26.Nh5 Kg8 27.Qf6 Rac8 28.Qg7# 1–0. NN – KnightStalker 80286 12Mhz, 1993.

7.d3 a5 8.b5 0–0 9.Nbd2 c6 10.0–0 (10.c4!?=) 10...cb5–/+ 11.c4 bc4 12.dc4 e4 13.Nd4 Nc5 14.Nb5 Qd7 15.cd5 Nd5 16.Bd4 f5 (16...Nf6 17.Nc3=+) 17.Bc5= Bc5 18.Bc4 Kh8 19.Nb3 Ne3 20.fe3 Be3 21.Kh1 Qd1 22.Rad1 Bb6 (22...g6 23.Rde1 Bh6 24.Nd6+=) 23.Rd6 Bd8 24.N3d4 Be7 25.Rd5 Ra6 26.Nf5 Bf5 27.Re5 Ba3 28.Na3 Raf6 29.Ra5 (29...b6 30.Ra7–/+) 1–0. Deneuville,Christian – Pech,Jaroslav, corr or01–012, 2002.

7.d4 e4 8.Nfd2 0–0 9.c4 c6 10.c5 Qc7 11.0–0 Kh8 12.a4 Rg8 13.Nc3 Nf8 14.b5 Ng6 15.f3 ef3 16.Nf3 Ng4 17.Qd2 f5 18.h3 Nf6 19.Ne5 (better is 19.Rab1!?+=) 19...Ne5=+ 20.de5 Qe5 21.Nd1 Qc7 22.Qd4 cb5 23.Bb5 Qc5 24.Qc5 Bc5 25.Bf6 gf6 26.Rc1 Bb6 27.Kh1 Be6 28.Rf3 Rac8 29.Nc3 f4 30.ef4 d4 31.Ne2 Rc1 32.Nc1 Bd5 33.Rf2 (33.Be2–+) 33...d3! 34.Rb2 (34.Bd3 Bf2) 34...Bd4 (34...Rg2 35.Rg2 d2 36.Be2 dc1Q 37.Kh2 Qf4 38.Kh1 Qg3 39.Bf3 Qh3 40.Rh2 Bf3) 35.Rd2 (35.Nd3 Bb2 36.Nb2 Rg2–+) 35...Be3 (better is 35...Rg2!? 36.Bc4 Rd2 37.Bd5 Rd1 38.Kh2 Rc1 39.Bb7 Rc2 40.Kh1–+) 36.Rd1 (36.Bc4 Bc4 37.Rd3 Bd3 38.Nd3–+) 36...Bg2 (37.Kh2 Bf3 38.Nd3 Rg2 39.Kh1 Re2) 0–1. ian371 – Ashen_Shugar, HCL–T093 playchess.de, 2003.

7.h3 0–0 8.Nc3 c6 9.b5 (9.0–0 a5+=) 9...c5–/+ 10.a4 (10.0–0 d4 11.ed4 cd4–/+) 10...e4 11.Ng1 (11.Nh4 Ne5–/+) 11...d4 12.Nb1 Ne5 13.a5 d3 14.cd3 Nd3 15.Bd3 Qd3 16.a6 (better is 16.Nc3!?–/+) 16...ba6–+ 17.ba6 Ba6 (17...Nd5 18.Ne2–+) 18.Ne2 Bb7 (18...Rfd8 19.Be5–+) 19.Nf4 Qd7 20.Nc3 (20.Qc2 a5–+) 20...Rfd8 (20...Rfb8 21.Qc2–+) 21.Rb1 Rab8 22.Ba3 Bd6 23.Nh5 Nh5 24.Qh5 Bf8 25.Qd1 Qd3 26.Na4?? (26.Ra1–+) 26...Qa3 27.Ra1 (27.Nc3 Qa6–+) 27...Qd3 28.Nb2 Qb5 29.Qc2 (29.Na4 a6–+) 29...Ba6 30.Ra6 (30.Qd1 c4 31.Na4 Bb4–+) 30...Qa6 31.Nc4 (31.Nd1 Qa1 32.Qe4–+) 31...Qa1 32.Ke2 Qh1 33.Ne5 Rb1 34.Qc4 Qf1 0–1. sam2000 (1815) – Eralos (2200), ajedrez21.com, 2003.

6.Be2 g6

7.0–0 Bg7 8.c4 c6 9.Nc3 a6 (9...dc4 10.Bc4 0–0 11.Be2=) 10.Rc1 (10.c5 Qc7+=) 10...0–0 (10...dc4 11.Bc4 0–0 12.Ng5=) 11.Qb3 (11.d4 e4 12.Nd2 b5=) 11...dc4 (11...e4 12.c5 Qe7 13.Nd4=) 12.Qc4 Re8 13.Ng5 Re7 (13...Qe7 14.Qh4 Nb6 15.Rfd1=) 14.Nce4 (14.Qh4!? h6 15.Nge4+=) 14...Qc7= 15.Nc5 Nb6 (15...Nc5 16.bc5 h6 17.Nf3=) 16.Qb3 (16.Qc2 h6 17.Nf3 Nbd7+=) 16...h6= 17.Nge4 Ne4 18.Ne4 Be6 (18...Bf5 19.d3=) 19.Qc2 Rd8 20.Nc5 Bc8 21.f4 (21.Rfd1 Nd7=) 21...Nd5 (21...Bf5 22.e4 ef4 23.Bg7 Kg7 24.d3+=) 22.fe5 (22.Bc4 b6 23.Nd3 Bf5 24.fe5 Be5 25.Be5 Re5=) 22...Be5= 23.Be5 Qe5 24.Rf2 Nf6 (24...Bf5 25.Qa2=) 25.Rf4 (25.Rcf1 Ng4 26.Bg4 Bg4=) 25...Bf5 26.Bd3 Bd3 (26...Nh5 27.Rf5 gf5 28.Bf5=) 27.Nd3 Qd6 28.Rd4 (28.Nc5 h5=) 28...Qc7 29.Rd8 Qd8 30.Nc5 Qd5 31.Rf1 Qe5 (31...Ne4 32.Nb3=) 32.Rf4 Nd5 33.Rf1 Kg7 (33...Nf6 34.Qd3=) 34.Nb3 (34.Nd3 Qe4=) 34...Nf6 35.Qc5 Ne4 36.Qe5 Re5 37.d3 Nd6 38.e4 f5 39.Nc5 fe4 40.de4 a5 (40...b6 41.Na6 Re4 42.Rc1=) 41.Rd1 ab4 42.ab4 (worse is 42.Rd6 ba3 (42...Rc5?! 43.ab4 Rb5 44.Rd4=) 43.Rd7 Kf6 44.Rd6 Ke7 45.Rd7 Ke8 46.Rb7 Rc5–+) 42...b6 43.Nd7 (43.Rd6 bc5 44.bc5 Rc5=) 43...Re6 44.Nb6 Ne4 45.Nc4 Nc3 46.Rd7 Kf6 47.Rd3 (47.Na5 Ke5=) 47...Nd5 48.Na5 (48.b5 cb5 49.Rd5 bc4+=) 48...Nb4–/+ 49.Rc3 The isolani on c6 becomes a target 49...Ke7 50.Rc4 (50.g3 Kd7–/+) 50...c5 51.Nb7 (51.Rc5 Re1 Combination) 51...Re1 52.Kf2 Nd3 53.Kg3? (better is 53.Kf3!? Ne5 54.Kf2–+) 53...Re3–+ 54.Kh4 Re5 (54...Ke6 55.Rg4 Ne5 56.Rg3 (56.Nc5?? Kd5 57.Rb4 Kc5–+) 56...Re4 57.Kh3–+) 55.Rc3 (better is 55.Rg4 Nf4! 56.Kg3–+) 55...g5?? (better is 55...Re4 56.g4 c4–+) 56.Kh5= Nf4 (56...Rd5 57.Kh6 Kf6 58.g4=) 57.Kh6 Ne6 58.Kh5 Kf6 59.Kg4 Re4 ½–½. Winterfeldt,Steffen (1760) – Strnad,Alfred (1910), Mittelfrankenliga–B2b, 2007.

7.c4 c6 8.Qc2 (8.cd5 Nd5 9.Nc3 Bg7+=) 8...Bg7= 9.h3 (9.0–0 dc4 10.Bc4 0–0+=) 9...0–0 10.a4 (10.cd5!? Nd5 11.0–0=) 10...Re8+= 11.b5 (11.c5 Qc7–/+) 11...c5 Black prepares the advance d4 (11...d4!? 12.ed4 ed4 13.Bd4 Nc5–+) 12.d3+= d4 13.e4 (13.Nbd2 Bh6+=) 13...Bh6 (13...Nh5 14.Nbd2–/+) 14.Bc1 (14.Nbd2 Nh5–/+) 14...Qf8 (14...Bc1 15.Qc1 a6 16.Nbd2–/+) 15.Bh6+= Qh6 16.Qd2 (16.Nbd2 Nh5+=) 16...Qd2 (16...Qf8 17.Nh4+=) 17.Nbd2 Nh5 (17...a5 18.g3+=) 18.0–0 (18.a5 a6=) 18...Nf4+= 19.Rfe1 Nf6 (19...a5 20.Kh2+=) 20.Bf1 (20.Nb3 b6=) 20...N6h5 (20...Bd7 21.Kh2=) 21.a5 (21.Nb3 b6+=) 21...Bd7= 22.Nb3 Rac8 23.Kh2 f6 24.g3 Ne6 25.h4 Kf7 (25...a6 26.b6=) 26.Bh3 h6 27.Kg2?? (27.Bg4 Re7=) 27...Rg8?? (better is 27...Nhf4 28.gf4 Nf4 29.Kg3 Bh3–+) 28.Be6 (28.Rh1 Rge8=) 28...Be6 29.Rf1 (29.a6 b6=) 29...Ke7 (29...g5 30.hg5 hg5 31.Rh1=) 30.Rae1 (30.Nc1 Kd6=) 30...Kd6+= ½–½. Stecyk,Jozef (2015) – Pawelec,Bartosz, 2rd Poland–chT div North, 1999.

7.c4 c6 8.cd5 cd5 9.Qa4 e4 10.Nd4 Bg7 11.Nc3 White is in command 11...0–0 12.Ncb5 Qb8 13.Rc1 Ne8 14.Qb3 Nb6 15.a4 Be6 16.a5 Nd7 17.Ne6 fe6 18.Bg4 Kf7 19.Bg7 Kg7 (better is 19...Ng7!? 20.Rc7 Qd8+/–) 20.Be6 Ndf6 21.Rc8 Qe5? (better is 21...Qc8 22.Bc8 Rc8+–) 22.Ra8 Qe6 23.h3 (23.Ra7 Rf7+–) 23...Qf7?! (23...a6 24.Nd4 Qe7 25.0–0+–) 24.0–0 (24.Ra7 Nh5 25.Qb2 Kg8+–) 24...g5 (24...a6 25.Nd4+–) 25.Qc3 Kh6 (25...a6 26.Nd4+–) 26.Qe5 (26.Ra7 Qd7 27.Nd4 Kg7+–) 26...Qh5 Black prepares g4 (26...Nd7 27.Qg3 a6+–) 27.Nd6 g4 28.Qh5 (28.Qh5 Kh5 29.Nb7 gh3 30.gh3+–) 1–0. Sundin,Tommy – Sundell,Bo, Karlstad op SWE, 1988.

7.d4 e4 8.Ne5 Qe7 9.c4 c6 10.c5 Bg7 11.Ng4 Ng4 12.Bg4 b6 13.cb6 ab6 14.Nc3 Qg5 15.h4 Qe7 16.g3 (16.b5 Nf6 17.Be2 cb5=) 16...f5 17.Be2 h5 18.Qb3 Bb7 19.0–0 g5 20.Qd1? (better is 20.b5 Ra5 21.bc6 Bc6 22.Bb5 Bb5 23.Nb5 gh4 24.Qd5=) 20...gh4–+ 21.Bh5 Kf8 22.g4 Qg5 23.Kh1 (23.f4!? Qh6 24.Na4–/+) 23...Nf6–+ 24.Rg1 Nh5 25.gh5 Qh5 26.Qh5 Rh5 27.Ne2 Ba6 28.Nf4 Rh7 (28...Rh6!?–+) 29.Ne6–/+ Kf7 (better is 29...Kg8!?–/+) 30.Ng5= Kg6 (30...Kg8 31.Nh7 Kh7 32.Rg5+=) 31.Nh7 (31.Ne4!? Kh6 32.Ng5+/–) 31...Kh7+= 32.Rg5 Kh6? (32...Be2 33.Rc1 Kh6 34.Rf5+=) 33.Rf5?? (better is 33.Rag1 Ra7 34.Rg6 Kh7 35.Rc6+–) 33...Be2 34.Rg1 Bf3 35.Kh2 Bf8?? (better is 35...Rf8 36.Rf8 Bf8+/–) 36.Rf6+– Kh5 37.Rc6 Ra7 (37...Bg4 38.Rb6 Rd8 39.Rb5+–) 38.Rcg6 Rc7 (38...Be7 39.Rg8 Bf6+–) 39.R1g5 1–0. Pozanco Romasanta,Marc – Kalinovsky,Martin, ESP–ch U10, 2007.

5.e3 g6

6.c4 dc4 7.Bc4 Bg7 8.0–0 Nb6 9.Be2 Ne7 10.d3 0–0 11.Nbd2 h6 12.h3 f5 13.Nc4 The pressure on e5 grows 13...Nc4 14.dc4 Qe6 15.Qc2 b6 16.c5 Bb7 17.Rfd1 Bd5 18.Rac1 Rfd8 19.Bc4 (19.Qc3!?=) 19...Bc4+= 20.Rd8 Rd8 21.Qc4 Qc4 22.Rc4 b5 23.Rc1 (23.Rc2 Rd1 24.Kh2 Nc6+=) 23...Nc6 24.Kf1 e4 25.Bg7 Kg7 (worse is 25...ef3 26.Bh6 fg2 27.Kg2+/–) 26.Ng1 (26.Ne1 Kf6+=) 26...Rd3 27.Ra1 a5 28.Ke2? (better is 28.Ne2!?–/+) 28...ab4–+ 29.ab4 Nb4 30.Rb1 Nd5 31.Rb5?? (better is 31.Ke1–+) 31...Nc3 0–1. Hal1958 – Snide, playchess.de, 2005.

6.c4 c6

7.Qb3 Bg7 8.Nc3 Ne7 9.cd5 Nd5 10.Nd5 Qd5?? 11.Bc4+– Qd6 12.Bf7 Kd8 13.Ng5 h6 (13...Nf6+–) 14.Ne6 Ke7 15.Ng7 Nf6 (15...Qf6 16.Bc4 Qg7+–) 16.0–0 Be6 (16...Nd5 17.f4! ef4 18.Rf4 Qf4 19.ef4 Kf7+–) 17.Be6 Rhf8 (17...Nh5 18.f4! Ng7 19.Bc4+–) 18.f4 ef4 19.ef4 Nd5 20.Rae1 Rae8 21.Bd5 (21.Bd5 Kd8 22.Be6+–) 1–0. pierred – anony, internet, 2015.

7.Nc3 a6 (7...Ngf6 8.cd5 Nd5 9.h4+=) 8.Qb3 (8.cd5 cd5 9.Qa4 Bg7+/–) 8...Ne7 (8...Ngf6 9.Be2+=) 9.d4 (9.h4 Bg7+/–) 9...e4 (9...Bg7 10.cd5 cd5 11.de5 Ne5 12.Ne5 Be5 13.Rd1+=) 10.Nd2 (10.Ne5!? Qe6 11.cd5 cd5 12.Ne4 de4 13.d5 Qe5 14.Be5 Ne5 15.Rc1+=) 10...Bg7= 11.Be2 0–0 12.h4 (better is 12.h3=) 12...f5 (12...Nf6 13.c5 Qc7 14.h5+=) 13.0–0–0 (13.h5!?+/–) 13...Nf6= 14.f3 (14.h5!?=) 14...Be6+= 15.c5 Qd7 (15...Qg3 16.h5 gh5 17.fe4 fe4 18.Nce4 Ne4 19.Ne4 Qg2 20.Bd3=) 16.Na4 Rae8 (16...Qc7 17.Nb6 Ra7 18.f4+=) 17.Nb6 Qc7 18.f4 Nh5 (18...h5 19.Kb1+=) 19.Rh3= Kh8 20.Rg1 (20.Kb1 Nc8 21.Na4 Bf6=) 20...Ng8 (20...Nc8 21.Na4=) 21.Qd1 (21.Nf1 Ngf6=) 21...Ngf6 22.Nf1 Ng4 23.Qe1 Nf4 (better is 23...Kg8!?+=) 24.ef4+= Qf4 25.Kb1 h5 (25...Qf2 26.Nh2+=) 26.Bg4 (26.Rb3!?+/–) 26...fg4+= (worse is 26...Qg4 27.Ne3 Qf4 28.g3+–) 27.Rb3 (27.Re3 Qf2 28.Ng3 Bh6+=) 27...Qf2= 28.Ne3 g3 (28...Qe1 29.Re1 Rf2 30.a4=) 29.Nd1 (29.Qc1 Bh6+=) 29...e3 (better is 29...Qe1!? 30.Re1 Rf4=) 30.Re3+/– (30.Nf2 gf2 31.Re3 fe1Q 32.Rge1 Bf5 33.Ka2 Re3 34.Re3 Be4–/+) 30...Bh6? (30...Bf5 31.Ka2 Re3 32.Qe3+/– (32.Nf2?? Re1 33.Re1 gf2–+; 32.Ne3? Re8 33.Qf2 gf2–+)) 31.Re5 (31.Nf2 gf2 32.Re6 Re6+– (32...fe1B?? 33.Rge1 Re6 34.Re6+–)) 31...Bf5 32.Ka1 (32.Ka2 Qe1 33.Rge1 Re5 34.de5 Be6+–) 32...Qc2 (32...Qe1!? 33.Rge1 Re5 34.de5 Be6+–) 33.Ne3 Re5 34.de5 (34.Nc2 Re1 35.Ne1 Be4=) 34...Qb3 35.Nf5 Rf5 36.e6?? (better is 36.Rf1 Bd2 37.e6 (37.Qd2? Rf1 38.Bc1 Kg8–+) 37...Kh7 38.Qe2 (38.Qd2?! Rf1 39.Bc1 Qa3 40.Kb1 Qb3 41.Ka1 Qa3 42.Kb1 Qb3 43.Ka1 Qa3=) 38...Rf1 39.Qf1+/–) 36...Bg7+= 37.Qb1?? (better is 37.Na4! Rf2 38.Bg7 Kg7 39.Qc3 Qc3 40.Nc3+/–) 37...Qa3 38.Qa2 Bb2 39.Kb1 Qd3 40.Kb2 Rf2 41.Ka1 Qd4 0–1. Demidov,Leonid (2165) – Grachev,Jurij (2380), Open, Novosibirsk RUS, 2001. (=1.Nf3 d5 2.b4 Qd6 3.a3 e5 4.Bb2 Nd7 5.e3 g6 6.c4 c6)

7.Nc3 Ne7 8.cd5 White launches an attack 8...cd5 9.Nb5 Qb8 10.Rc1 Nc6 11.Qb3 a6 (11...a5 12.ba5 Be7 13.d4+/–) 12.Nc3 d4 13.Ng5 Threatening mate... how? 13...Nd8 14.Nd5 Bd6 15.ed4 h6 (better is 15...ed4 16.Nf3 0–0+/–) 16.Ne4 Nc6 17.de5 (better is 17.Nd6 Qd6 18.de5+–) 17...Be5 18.d4 Bg7 19.Bd3 (19.Qe3 0–0+–) 19...0–0 (19...f5 20.Nd2+/–) 20.0–0+– Kh7 21.Bb1 (21.Qc4 f5 22.Ng3 Qd6+–) 21...f5 (21...Nd4 22.Qe3 Nf3 23.Qf3 Bb2 24.Rce1+=) 22.Ng3 (22.Nc5 Nd4 23.Bd4 Bd4+–) 22...Qd6 (22...Nd4 23.Bd4 Bd4+–) 23.Rfd1+/– Nf6 24.Nb6 Rb8 25.d5 Ne5? (better is 25...Ne7 26.Nc4 Qd7+–) 26.Nc8 Rbc8 27.Rc8 (27.Nf5 Qb8 28.Rc8 Rc8 29.Ng7 Kg7+–) 27...Rc8 28.Nf5! Qb8 (28...gf5 29.Bf5 A double attack) 29.Ng7 Kg7 30.d6 Ned7 (30...Re8 31.Qg3 Nf3 32.Qf3 Qd6 33.Qf6 (33.Rd6?? Re1) 33...Qf6 34.Bf6 Kf6 35.Rd6 Ke5 36.Bg6+–) 31.Qd3 (31.Qd3 Rc2 32.Bc2+–) 1–0. Labahn,Wolfgang – Tugemann, Paderborn GER, 1992.

7.Nc3 Ne7 8.cd5 Nd5 9.Bc4 N5b6 Black threatens to win material: Nb6xc4 (9...Bg7 10.0–0=) 10.Ne4 White threatens to win material: Ne4xd6 10...Qe7 11.Bb3 Bg7 12.0–0 0–0 13.Qc2 h6 Prevents intrusion on g5 (13...Nd5 14.d3+=) 14.Rad1 (14.h4!?+/–) 14...Kh7 +/= 15.d4 f5 16.Nc5 e4 Black threatens to win material: e4xf3 17.Nd2 (17.Ne5 Nc5 18.bc5 Nd5=) 17...Nf6 18.Nc4 Nc4 19.Qc4 Nd5 (19...a5 20.b5=) 20.Qe2 (better is 20.b5!?+= should not be overlooked) 20...b6 =/+ 21.Bd5 cd5 Black has the pair of bishops. 22.Na4 f4 23.ef4 Rf4 24.Bc1 (24.Nc3 Bb7+=) 24...Rf7 (24...Rh4 25.Qe3–/+) 25.Nc3 Be6 26.Be3 The bishop blocks e4 26...Qh4 27.Rc1 Rc8 28.Qd2 Rfc7 29.Ne2 Qd8 30.Rc7 Rc7 31.Rc1 g5 32.Rc7 Qc7 33.Qc3 White threatens to win material: Qc3xc7 33...Qb7 34.h3 Covers g4 34...Qa6 Black threatens to win material: Qa6xe2 (34...Bf8 35.Qc2+=) 35.Qc6 = White threatens to win material: Qc6xe6 35...Bg8 Black king safety dropped (35...Qc8 36.b5=) 36.Nc3 +/= White threatens to win material: Nc3xd5 36...Qa3 (36...Qc4!? 37.Qc4 dc4 38.Ne4 Kg6+=) 37.Nd5 +/– 37...Bd5 ½–½. Buczinski,Henryk (2200) – Janik,R (2000), DMSl.–Klasa A Poland, 1995.

7.Nc3 Ne7 8.cd5 Nd5 9.d4 Nc3 10.Bc3 ed4 11.Bd4–+. Wolfgang Labahn.

7.Nc3 Ne7 8.cd5 Nd5 9.Nd5 cd5 10.Ne5 Ne5 11.f4 Bg7 (11...f6 12.fe5 fe5 13.Bb5 Ke7 14.d4+=) 12.fe5 Be5 13.Be5 Qe5 14.Bb5 Ke7 15.0–0 a6 16.Ba4 b5 17.Bb3 Be6 18.Qf3 The backward pawn on f7 becomes a target. Attacks the isolani on d5 18...f5 (18...Rhc8 19.Rae1+=) 19.d4+/– Qd6 20.Rac1 Rac8 21.Rc5 Rc5 22.dc5 Qe5 23.Qf2 Kd7 24.Qd2 Re8 25.a4 Bg8 Attacking the isolated pawn on e3. Black gets the initiative 26.ab5 ab5 27.Re1 Ra8 28.Qd4 (28.Bc2!?+/–) 28...Qd4+= 29.ed4 Ra3 30.Re3 Ra1 31.Kf2 Rb1 32.Rd3 g5 33.h4 (33.g3 Rb2 34.Kg1 h5=) 33...Rb2 34.Kg3 h6 ½–½. Guercia Sammarco,Elio – Clews,William A, IECG, 2000.

7.d4 e4 8.Nfd2 Ne7 (8...Ngf6 9.Be2=) 9.Nc3 (9.Be2 Bg7=) 9...a6 (9...Bg7 10.Be2=) 10.Qb3 (10.Be2 Bg7+=) 10...Bh6 (10...Bg7 11.Be2=) 11.a4 (11.Be2 0–0+=) 11...Nf6 (11...0–0 12.Be2=) 12.cd5 (12.c5 Qe6+=) 12...cd5 13.Ba3 Be6 14.b5 Qd8 (14...Qd7 15.Be7 Ke7 16.Rc1+=) 15.Qb4 (15.ba6!? ba6 16.Ba6+/–) 15...a5 (15...Nf5 16.ba6 ba6 17.Qb7+=) 16.Qd6 (16.Qe7 Qe7 17.Be7 Ke7+=) 16...b6 (16...Qd6 17.Bd6 Nf5 18.Be5+=) 17.Rc1 (17.Qe7 Qe7 18.Be7 Ke7=) 17...Rc8 (17...Nf5 18.Qe5+=) 18.Be2 Qd6 19.Bd6 Rg8 20.0–0 (better is 20.h3+=) 20...Nf5–/+ 21.Be5 Ne3! 22.fe3 (22.Nce4 de4 23.Rc8 Bc8 24.fe3 Be3 25.Kh1=) 22...Be3–+ 23.Kh1 Bd2 24.Rc2 (24.Bf6 Rc3 25.Rc3 Bc3–/+) 24...Rc3 (24...Ng4 25.Rd2 Rc3 26.Kg1–+) 25.Rc3 (25.Rd2 Ng4 26.Kg1 e3–+) 25...Bc3 26.Rc1? (26.Rf6 Ke7–+) 26...Bb4 (better is 26...Bd2 27.Rc6 Ke7 28.Bd6 Kd7–+) 27.Bf6 Kd7 (28.g4 g5–+) 0–1. Melich,Jindrich – Pektor,A, CSR–ch Praha, 1992.

7.d4 e4 8.Nfd2 f5 9.cd5 cd5 10.g3 Ngf6 11.Nc3 a6 12.Qb3 Nb6 13.Be2 Be6 14.0–0 Be7 15.Qc2 Rc8 16.Nb3 Nc4 17.Nc5 Rc7 18.Rac1 0–0 (better is 18...b5!?=) 19.Ne6+/– Qe6 20.Nd5! Nd5 (20...Qd5 21.Bc4 Remove defender; 20...Nd5 21.Bc4 Remove defender) 21.Bc4 Rc4? (better is 21...Rd7!?+/–) 22.Qc4+– g5 Black intends f4 23.Kh1 Kh8 24.Qe2 f4 25.ef4 gf4 26.Rce1 f3? (26...fg3 27.Qe4 Qe4 28.Re4 Rf2 29.Rf2 gf2+–) 27.Qe4 Qh3 28.Rg1 Rf5 (28...Qd7+–) 29.Qe6 Bf6 (29...Bd6+–) 30.g4 Rh5 (30...Rg5 31.Qf7 Rg8+–) 31.Qc8 1–0. Janek – Kevin, internet free game, 2016.

7.Be2 Bg7 8.0–0 dc4 9.Bc4 Ngf6 10.d4 ed4 11.Qd4 +=.

7.Be2 Bg7 8.0–0 Ngf6 9.c5 (9.d4 e4 10.Ne5 dc4 11.Nc4 Qe6+=) 9...Qe7 (9...Qc7 10.d4+=) 10.Re1 (10.d4 e4 11.Nfd2 0–0=) 10...0–0 11.Nc3 Re8 (11...e4 12.Nd4=) 12.Qc2 (12.d4 e4 13.Nd2 b6=) 12...h6 (12...e4 13.Nd4=) 13.Rad1 (13.d4 e4 14.Nd2 b6=) 13...Qe6 (13...b5 14.d4 e4 15.Nd2=) 14.d3 (14.d4 e4 15.Nd2 b6=) 14...b6 (14...b5 15.cb6 ab6 16.Rc1=) 15.d4 (15.cb6 ab6 16.Rc1 Qd6=) 15...e4 Black gets the initiative 16.Nd2 Bb7 (16...bc5 17.bc5 a5=) 17.b5 (better is 17.Rc1!?=) 17...bc5–/+ 18.Nb3 (18.dc5 Nc5 19.Ncb1 Ncd7–/+) 18...c4 19.Na5 Rab8 20.f3? (better is 20.bc6 Bc6 21.Rb1–/+) 20...cb5–+ 21.Nb5 (21.fe4 Ne4 22.Ne4 Qe4 23.Qe4 de4 24.Nb7 Rb7 25.Rd2–+) 21...Qb6 22.Nb7 (22.Nc4 dc4 (22...Qb5?! 23.Nd6 Qc6 24.Qc6 Bc6 25.Ne8 Rb2 26.Ng7–+) 23.a4 ef3 24.gf3 Re3 25.Bc4 Nd5–+) 22...Rb7 (22...Qb5?! 23.Nd6 Qb2 24.Qb2 Rb2 25.Ne8 Ne8 26.fe4 de4 27.Bc4–+; 22...Qb7?! 23.Nd6 Qb2 24.Qb2 Rb2 25.Ne8 Ne8 26.fe4 de4 27.Bc4–+) 23.a4 a6 24.Bc3 (24.fe4 Ne4 25.Nc3 Qb2 26.Qb2 Rb2 27.Nd5 Nc3 28.Bc4 Nd1 29.Rd1 Nf6 30.Nf6 Bf6 31.Ba6 Bg5–+) 24...ab5 25.Rb1 Qa6 26.Rb5 Rb5 27.ab5 Qb5 28.Rb1 Qc6 29.Kf2 (29.f4 Ra8–+) 29...Rb8 (29...ef3 30.Bf3 Qe6 31.Bd2–+) 30.h3 (30.Rb8 Nb8 31.f4 Qe6–+) 30...Rb1 31.Qb1 Bf8 (31...ef3 32.Bf3 Bf8 33.Bd2–+) 32.g4 (32.f4 Nb6–+) 32...Qd6 (32...ef3 33.Bf3 Qd6 34.Qh1–+) 33.Kg2 (33.f4 Ne8–+) 33...h5 (better is 33...ef3!? 34.Bf3 Qe6 35.Bd2–+) 34.g5 Ne8 (34...Nh7 35.h4 f5 36.Qb7–+) 35.fe4 Nb6 (better is 35...Qe7!? 36.h4 Nd6 37.e5–+) 36.Ba5 Nd7?? (better is 36...Na8 37.Qb7 Nac7 38.h4–+) 37.Qf1?? (37.Bc3 Qe7 38.h4–+) 37...Qa3–+ 38.Bd2 c3 (38...Qa2 39.Qd1–+) 39.Bc1 Qe7 40.h4 (40.e5 Qg5 41.Kh1 Nc7–+) 40...Qe4 41.Kg1 (41.Kh3 Nd6 42.Bf3 Qe6 43.Kg2 Ne4–+) 41...Qh4 42.Qg2 Be7 (42...Nc7!? 43.Kf1–+) 43.Bb5 Qe1 (43...Bg5 44.Bd7 Nf6 45.Bh3 Qe1 46.Qf1 Be3 47.Kh1 Qc1 48.Qc1 Bc1 49.Bf1–+) 44.Qf1 Qg3 45.Qg2 Qd6 46.Qh2 (46.Qh3 f5 47.gf6 Ndf6–+) 46...Qe6 47.Qf4 (47.Qc2 Nd6 48.Bf1 Qg4 49.Bg2 Ne4–+) 47...Bd6 (better is 47...Nd6!? 48.Bd3–+) 48.Qf3 Ng7 49.Bd7 (49.e4 de4 50.Qc3 Qg4 51.Kh1 Nf5–+) 49...Qd7 50.e4 de4 51.Qe4 (51.Qc3 Qg4 52.Kf2 h4–+) 51...Qg4 52.Qg4 hg4 53.Kg2 (53.Kf2 Nf5 54.Ke1 Nd4–+) 53...Ne6 54.Be3 (54.d5 Nf4 55.Kf2 Nd3 56.Ke2 Nc1 57.Kd1–+) 54...c2 (54...c2 55.Kf2 Bf4 56.Bf4 Nf4–+) 0–1. Popkirov,Stojan – Berrang,Gerrit, GER–ch U11 Pinneberg, 1996.

7.cd5 cd5

8.Ne5 Ne5 9.f4 (9.Bb5 Kd8 10.f4 Bg7 11.Be5 Be5 12.fe5 Qe5 13.Ra2=) 9...f6 10.fe5 fe5 11.Bb5 Ke7 (11...Bd7 12.Bd7 Kd7 13.Nc3+=) 12.0–0 Nf6 (12...Bg7 13.Be2+=) 13.Qe1 (13.Be2+=) 13...Bg7 14.Qh4 Be6 15.Nc3 Raf8 16.Be2 a6 17.Na4 h6 18.Qg3 Ne4 19.Qg6 Bf6 20.Nc5 Bf7 (20...Nc5 21.bc5) 21.Qf5 Be6 (21...Nc5!? 22.bc5 Qe6+/–) 22.Ne4+– (22.Ne6?! Qe6 23.Rad1 Qf5 24.Rf5 Bg7 25.Rf8 Rf8+/–; 22.Qe6?! Qe6 23.Ne6 Ke6+/–) 22...de4 23.Qe4 Bd5 24.Qc2 Rc8 25.Bc3 Rhg8 26.e4 Be6 27.Rac1 Bh3 28.Bf3 b5 29.Kh1 Be6 30.Be2 Bc4 31.Bc4 Rc4 32.d3 Rc6?? (32...Rc7+–) 33.Be5! (33.Be5 Be5 34.Qc6+–) 1–0. Buss,Michael – Hart,Bert, USCF89RT5, 1989.

8.Nc3 a6

9.Rc1 Ne7 10.Be2+=.

9.Rc1 Ngf6 (9...Bg7 10.Qa4 Rb8 11.d4+=) 10.Qc2 (10.Qa4!? Rb8 11.Ne4 de4 12.Be5 ef3 13.Bd6 fg2 14.Bg2 Bd6 15.0–0+/–) 10...Bg7+= 11.Na4 0–0 12.Be2 Re8 Black prepares e4 13.0–0 e4 14.Ne1 Ne5 15.Qc7 Qc7 16.Rc7 Nfd7 17.Bd4 Bf8 18.Nc3 Nf6 19.f4 Ned7 20.Be5 Re6 21.Nc2 Rc6 22.Nd4 (better is 22.Rc6 bc6 23.Bd4=) 22...Ne5–/+ 23.Rc8 Nf3! (23...Rac8?! 24.fe5 Rc3 25.dc3+=) 24.Nf3 (24.Nf3 Rac8 Zwischenzug; 24.Bf3 Rac8 Zwischenzug; 24.gf3 Rac8 Zwischenzug) 24...Rcc8 25.Nd4 Rd8 26.Rb1 Rac8 27.Bd1 Rc7 28.Bb3 Be7 29.Kf2 h5 30.h3 Kg7 31.Ke2 Bf8 (31...h4 32.Rg1–+) 32.Ba2 Be7 33.Rb2?? (33.Bb3 h4 34.Rb2–+) 33...h4 34.Rb1 Rcd7 35.Rc1 Rc7 36.Rb1 Rdd7 37.Bb3 Bf8 38.Ba4 Rd8 39.Bb3 Be7?? (39...Kh6 40.f5 g5 41.Rb2–+) 40.Ba2 Rcd7 41.Rc1 Rc8 42.Rc2 Bd8 43.Na4 Rc2 44.Nc2 Kf8 45.Kd1 Ke7 46.Nd4 Kd6 47.Bb3 Re7 48.Ba2 Bc7 49.Nb3 Nd7 50.Nc3 Re8 (better is 50...Bb6!? 51.a4–+) 51.Nc5–/+ Nc5 52.bc5 Kc5 53.Nd5 Bd8 54.Nc3 Re7 55.Nd5 Rd7 56.Nc3 f5 57.Ne2 Bf6 58.Kc2 b5 59.Nc1 Rd6 60.Bf7 Bg7 61.d3 Kb6 62.d4 Bf8 63.Kb3 a5 64.Ne2 Rf6 Black plans b4 65.Bg8 b4 66.Bc4 ba3 67.Nc3 Rc6 68.Bd5 Rc7 69.Na2 (69.Bc4 a4! 70.Na4 Ka5–+) 69...Bb4! 70.Bc4 (70.Nb4 ab4 Passed pawn) 70...Bd2 71.Be6 Be3 72.d5 (72.Nc3 Kc6 73.Bd5 Kd7 74.Ne4 fe4 75.Be4 Bf4 76.Ka3–+) 72...Bf4 73.Ka3 (73.d6 Bd6 74.Nc3 a4 75.Na4 Ka5 76.Nc3 Rb7 77.Kc2 Rb2 78.Kd1–+) 73...e3 74.Kb3 g5 (74...e2 75.d6 Bd6 76.Bc4 a4 77.Kc3 e1Q 78.Kb2 Qd2 79.Kb1 a3 80.g3 Qb2) 75.Nc3 Be5 (75...Rc3 76.Ka2 e2 77.Bc8 e1Q 78.Bf5 Qc1 79.g3 Ra3) 76.Ne2 a4! 77.Ka4 Rc2 78.Ng1 e2 79.Nf3 (79.Ne2 Re2 80.Bf5 Kc5–+) 79...Bg3 (79...Rc4 80.Ka3 Rc3 81.Kb2 Rf3 82.Kc2 e1Q 83.gf3 Qe2 84.Kc1 Bb2 85.Kb1 Ba3 86.Bf5 Qb2) 80.d6 (80.Kb3 Rc1 81.d6 Rf1–+) 80...Bd6 81.Kb3 Rc1 82.Bf7 (82.Bc4 e1Q 83.Ne1 Re1 84.Bd3–+) 82...g4 83.Be6 e1Q (83...gf3 84.Ka2 e1Q 85.Bf5 Qa5 86.Kb3 Qa3) 84.Ne1–+ Re1 85.Bf5 Re2 86.Kc3 (86.Bg4 Rg2 87.Bf5–+) 86...Rg2 87.Kd3 (87.hg4 h3 88.Be4 Be5 89.Kd3 Rg4–+) 87...Rg3 88.Ke2 Bf4 (better is 88...gh3 89.Be4 h2 90.Bd5–+) 89.Kf2 (89.Bg4 Kc5–+) 89...Kc5 (better is 89...Be3 90.Ke2 gh3 91.Be4–+) 90.Bc8 (90.Bg4 Kd4 91.Bf5–+) 90...Kd4 91.Bf5 Kc3 (91...gh3 92.Ke2 h2 93.Bc2 Re3 94.Kf2 h1Q 95.Be4 Bg3) 92.Bc8 Kd2 0–1. Bernhard,Alfred (1835) – Althoff,Christoph (1855), Ruhrgebiet VK3, 2007.

9.Rc1 Bg7 10.Qa4 Rb8 11.d4 b5 (better is 11...e4!? 12.Nd2 Ngf6+=) 12.de5+/– Qe6 (12...Be5 13.Qd1 Bc3 14.Bc3+/–) 13.Qb3+– Ne7 14.Nd4 Qe5 15.Ndb5! 0–0 (15...Rb5 16.Na4 Discovered attack) 16.Nd4 (16.Nd1 Qg5 17.Bg7 Kg7 18.Qc3 Nf6+–) 16...Nb6 17.Nd1 Qe4 18.Nf3 Bb2 19.Nb2 d4 (19...Qg4 20.Qc3+–) 20.Nd4 Ned5 (20...Rd8 21.Qd3 Qa8 22.Qe2+–) 21.Qd3 White gets in control 21...Qg4 22.Qd1 (22.Nc6 Ra8+–) 22...Qg5 (22...Qh4 23.g3 Qg5 24.Nc6+–) 23.h4 Qh6 (23...Qf6 24.h5+–) 24.Nc6 Rb7 25.Qd2 Re8 26.Be2 Nf4?? (26...Rc7+–) 27.ef4 Bg4 28.f3 Rd7 29.Nd3 (29.fg4 Rd2 30.Kd2 Qf4 31.Kd1 Re2 32.Ke2 Qe4 33.Kd1 Qd5 34.Kc2 Qc6 35.Kb1 Qg2=) 29...Bf5 30.Nde5 (30.Nde5 Rd2 31.Kd2 Qf4 32.Kd1–+; better is 30.Kf2+–) 1–0. Mehlhorn,Wolfgang – Zipfel,Franz, corr DDR–chJ10, 1981.

9.Rc1 Bg7 10.Be2 Ne7 11.0–0 0–0 12.Ne1 (12.d4 e4 13.Nd2 Nf6=) 12...f5 13.Qb3 White prepares the advance b5 13...Kh8 14.f3 (14.d4 f4=) 14...Nf6 15.Nd3 (15.f4 e4=) 15...b6 (15...d4 16.ed4 ed4 17.Na4=) 16.b5 (16.Na4 d4 17.Ne5 Qe5 18.Bd4+=) 16...Be6 (16...d4!? 17.ed4 ed4=) 17.Qb4 (17.ba6 d4 (17...Ra6? 18.Nb5 d4 19.Qd1+–) 18.Nb5 Bb3 19.Nd6 e4 20.fe4 Ne4 21.Ne4 fe4 22.Rf8 Rf8+/–) 17...Qb4+= 18.Nb4 a5 (18...d4 19.ed4 ed4+/–) 19.Nd3 (better is 19.Nc6!? Nc6 20.bc6+/–) 19...d4 20.Na4 Rab8? (20...de3!? 21.de3 Nd7=) 21.ed4 (21.Ne5!? de3 22.de3+–) 21...e4+/– 22.Nf2 Bh6? (22...Bb3 23.Nc3 ef3 24.Bf3+=) 23.Rc7?? (better is 23.fe4 Bb3 24.Rc7+–) 23...Ned5= 24.Rc6 Bd7 25.Rd6 (25.fe4 Bc6 26.bc6 fe4= (worse is 26...Ne4 27.Ne4 fe4 28.Nc3 Nc3 29.Bc3+=)) 25...Bf4 (25...Bd2 26.fe4 fe4 27.Bc4=) 26.Rd7 Nd7 27.fe4 fe4 28.Ne4 The passed pawn on d4 will become decisive later 28...Bh6 (28...Rbe8 29.Bf3+=) 29.Rd1 (29.Rf8 Rf8 30.Bc4 Nc7+/–) 29...Bg7 (29...Rbe8 30.Bf3+=) 30.Bf3 (30.Bc4 N7f6 31.Nf6 Nf6+=) 30...Nf4 31.Nd6 (31.d3=) 31...Nf6 (better is 31...Nh3! 32.Kf1 Ng5+=) 32.Nc4+/– N4d5 33.Ne3 (better is 33.Ne5+/–) 33...Ne3? (better is 33...Nf4!?+=) 34.de3+– Rfe8 35.Re1 (35.Kf2 Re6+–) 35...Ne4+/– 36.Bc1 Bf6 37.Kf1 Kg8 (37...h6+/–) 38.Ke2 (38.Rd1 Kf8+/–) 38...Nd6 (38...Bd4 39.ed4 Nc3 40.Kd2 Na4 41.Re8 Re8+/–) 39.Kd3 (better is 39.Kd1+/–) 39...Re7? (better is 39...Nb5!? 40.Bc6 Nd4 41.Be8 Re8 42.Nb6 Nb3+/–) 40.Nc3 Nf5 (better is 40...Rd8+–) 41.g3?? (41.Nd5 Re6+–) 41...Rc8?? (41...Nd4 42.Bd5 Kg7 43.Bd2=) 42.Bc6?? (42.Nd5 Re6 43.e4 Nd4+–) 42...Rd8?? (better is 42...Nd4 43.Bd5 Kg7=) 43.d5 (43.Nd5 Re6 44.Rf1 Kg7+–) 43...Rc7? (43...Nd6+/–) 44.Bb2?? (better is 44.e4 Nd4 45.Bf4+–) 44...Ne7+= 45.Kc4 (better is 45.e4 Nc6 46.bc6 Rc6 47.e5+=) 45...Bg7?? (better is 45...Bc3 46.Bc3 Rd5+=) 46.e4+– g5 47.e5 Ng6 48.Na4 Re7 49.e6 (49.Nb6?! Ne5 50.Be5 Re5 51.Re5 Be5+–) 49...Bb2 50.Nb2 Nf8 (50...Kg7 51.Na4 Kf6 52.Rf1 Kg7 53.Nb6+–) 51.Na4 Rb8 52.Nc3 (better is 52.d6!? Re6 53.Bd5 Kf7 54.Rf1 Kg7 55.Rf8 Kf8 56.Be6 Kg7+–) 52...Kg7 53.Ne4 Kh6 (53...Kg6 54.g4+–) 54.Rf1 Ne6 (54...Rd8 55.Nd6! Rd6 56.Rf8+–) 55.Nd6 (better is 55.Rf6!? Kg7 56.Re6 Re6 57.de6 Kf8+–) 55...Kg6? (55...Ng7 56.Rf6 Kh5+–) 56.Re1 (56.Nf5 Ree8 57.Be8 Re8 58.de6 Re6+–) 56...Rd8 (56...Kf6 57.Ne4 (worse is 57.de6 Re6 58.Rf1 Kg7 59.Rf7 Kg6+–; 57.Re6?! Re6 58.de6 Ke6+–) 57...Kg6 58.Nf2+– (58.de6?! Re6 59.Bd5 Rc8 60.Kb3 Re5+–)) 57.Nb7 (57.Re6 Re6 58.de6 Rd6+–) 57...Rb8? (57...Kf6+–) 58.Re6 Re6 59.de6 Kf6 60.Kd5 Ke7 61.Nd6 (61.Ke5 g4+–) 61...Kf6 (61...Rd8 62.Bd7 Rd7 63.ed7 Kd7 64.g4+–) 62.Nf7 (62.Bd7 a4+–) 62...h5 (62...Ke7 63.Bd7+–) 63.Kd6 g4 (63...h4 64.Ne5 Rh8 65.Nd7 Kg6 66.e7+–) 64.Kd7 a4 (64...Rf8 65.Bd5 Rg8 66.a4+–) 65.Nd6 (65.Bd5 Rf8 66.e7 Rg8+–) 65...Rh8 66.Nc8 (better is 66.e7!? Rg8+–) 66...Rc8 67.Kc8 (67.Kc8 Ke6 68.Kc7+–) 1–0. Vandenburg,V – Puls,Mike, Detroit East op, 1983.

9.Rc1 Bg7 10.e4 Ngf6= 11.d4 (11.Nd5 Nd5 12.ed5 0–0=) 11...de4 12.Ne5 Ne5 13.de5 Qe5 14.Nb5 (14.Na4 Qe6=) 14...Qb2 15.Nd6 Kf8 16.Nc4 Qa2 17.Ra1 Qa1 18.Qa1 Ng4 (18...Be6 19.Qb1=) 19.Qc1 Bd4 20.Nd6 Kg7 21.h3 (21.Qc7 Rf8 22.Ne4 Re8=) 21...Bf2 22.Ke2 Bg3 23.Ne4 Re8 24.Kf3 Re4 25.Kg3 (25.Ke4 Nf2 26.Kf3 Nh1=) 25...Ne5 26.Qc7 (26.Qc3 Kg8=) 26...b5 27.Bd3 Nd3 28.Qc6 Re3 29.Kh2 Rb8 (29...Ra7 30.Qc8 f6 31.Rd1+/–) 30.Qc3+= Kg8 31.Qc7 Ra8 32.Qd8 Kg7 33.Qd5 Rb8 34.Qd4 Re5 35.Qd3 Re8 (35...Bf5 36.Qd4 Rbe8 37.Re1+/–) 36.Qd4 Kg8 37.Qa7 Be6 (37...Bb7 38.Rd1 Bc6 39.Qa6+/–) 38.Qa6 Bc4 39.Rc1 (39.Rd1 Ra8 40.Qc6 Rec8+/–) 39...Ra8 40.Qc6 Rac8 41.Qb7 Rb8 (41...Red8 42.Rd1 Re8 43.Rd7+/–) 42.Qf3 Rbd8 (42...Rbc8 43.g4+/–) 43.Rd1 h5 44.Rd8 Rd8 45.Qf4 Ra8 46.Qe3 Ra6 (46...h4 47.Qe4 Ra3 48.Qh4+/–) 47.g4 (47.Kg3 f6+/–) 47...Re6 (47...hg4 48.hg4 f6 49.Qe8 Kg7 50.Qe7 Kh6 51.a4 Ra4 52.Qf6+/–) 48.Qc3 hg4 49.hg4 Re4 (49...Bd5 50.Qc8 Kg7 51.Qc5+/–) 50.g5 Re2 (50...Kh7 51.Kg3+–) 51.Kg3+– Re4 52.Qd2 Re2 53.Qd8 Kh7 54.Qd4 Ra2 55.Qc3 Kg8 56.Kf3 Rh2 57.Ke4 ½–½. Mehlhorn,Uwe – Kubaszek,H, H–2077–D, 2000.

9.d4 e4 10.Ne5 Ne7 11.Qa4 (11.Qb3!? f5 12.Rc1=) 11...Bg7 12.Rc1 Rb8 13.Bb5 Qe6 (worse is 13...ab5 14.Nb5 Qf6 15.Nc7 Kf8 16.Qd7 Bd7 17.Nd7 Kg8 18.Nf6 Bf6 19.Rc5+–) 14.Nd5 Be5 15.Be2 (better is 15.Ne7 ab5 16.Qb5 Qe7 17.de5–/+) 15...Nd5 16.de5 b5 17.Qc2 Bb7 18.Qe4 Nc3! 19.Qd4 (19.Rc3 Be4) 19...Ne2 (19...Bg2 20.Bg4 Ne5 21.Qc3+– (21.Bc3?! 0–0 22.Qe5 Qe5 23.Be5 Bh1+/–; worse is 21.Rc3 Bh1 22.Rc5 0–0 23.Re5 Qf6–/+)) 20.Ke2 Bg2 21.Rhd1 Nb6 (better is 21...h5–+) 22.Qd6–/+ Ra8 23.Rc7 Bh3 (better is 23...Bd5–+) 24.Qc5?? (better is 24.Bd4 Nc4 25.Qe6 Be6 26.Bc5–/+) 24...Na4 25.Re7 Qe7 (25...Qe7 26.Qc6 Kf8 27.Qa8 Kg7–+) 0–1. Lanca,Ivan (2280) – Koci,Tomas (2270), Moravia–ch8 corr9800, 1998.

6.c4 Ne7

7.Nc3 c6 8.cd5 Nd5 9.Ne4 Qe7 10.Bc4 Bg7 11.0–0 0–0 12.d3 N7b6 13.Bb3 Bf5 14.Qc2 Bg4 15.Nfd2 Rac8 (15...a5 16.ba5 Ra5 17.Nc4 Nc4 18.dc4=) 16.h3+= Be6 17.Nf3 f6 18.Nc5 Bf7 19.e4 Nf4 20.d4 ed4 21.Bd4 Ne6 22.Ne6 White gets strong initiative 22...Be6 23.Rfd1 Rfd8 (23...Bb3 24.Qb3 Qf7 25.Qc2+=) 24.Bc5 Qf7 25.Be6 Qe6 26.Nd4 Qf7 27.a4 Bf8 (27...f5 28.ef5 Nd5 29.fg6 hg6 30.Ba7 Nb4 31.Qe4=) 28.a5+/– Bc5 29.bc5 Nc4 (29...Nd7 30.a6 ba6 31.Ra6+=) 30.a6 b5 31.cb6 ab6 32.Nc6 Rd1? (better is 32...Re8 33.a7 Na5+/–) 33.Qd1+– Qc7?? (33...Kg7 34.Qd5 Ra8+–) 34.Qd5 (34...Kg7 35.Qc4 Qc6 36.Qc6 Rc6 37.a7+–) 1–0. lucya (2105) – CFD (1905), GameColony.com, 2002.

7.Nc3 d4? 8.ed4+– Bg7 9.Nb5 (9.de5 Qb6 10.Na4 Qc6+–) 9...Qb6 10.de5 (10.Ne5?! Ne5 11.de5 a6+/–) 10...a6 11.c5 (11.Qa4!? Rb8 12.Nc3 f6+–) 11...Qc6 12.Nbd4 Qd5 13.Qb3 (13.e6 Ne5 14.ef7 Qf7 15.Ne5 Be5+–) 13...Ne5+/– 14.Ne5 (14.Qd5 Nd5 15.Ne5 Be5+/–) 14...Qe5 15.Qe3 (15.Be2 0–0+/–) 15...Bg4 (15...Nf5 16.Nf5 Qe3 17.Ne3 (17.de3? Bb2 18.Nd6 cd6–+) 17...Bb2 18.Rb1+/–) 16.f3 Bd7 17.Qe5 (17.Rb1 Rg8+/–) 17...Be5 18.0–0–0 0–0–0 19.Bc4 (19.Re1 Nc6 20.Nc6 Bb2 21.Kb2 Bc6+/–) 19...Ba4 (19...Bh3 20.gh3 Bd4 21.Bf7+/–) 20.Nc2 Bb2 21.Kb2 Nd5 22.Bd5 (22.g3 Rhe8+/–) 22...Rd5 23.d4 (23.Kc3 Rhd8 24.d3 Bb5+=) 23...Rhd8+= 24.Rd2 (24.Rhe1 Bc2 25.Kc2 Rd4 26.Rd4 Rd4+=) 24...Bc2= 25.Kc2 Rd4 26.Rhd1 ½–½. De Visser,Arnold W – Paavilainen,Tuomas (2025), corr, 1985.

6.c4 Ngf6

7.Nc3 c6 8.cd5 Nd5 9.d4 Nc3 10.Bc3 +=.

7.Nc3 c6 8.cd5 Nd5 9.Nd5 cd5 10.d4 =.

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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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