CLICK!

Support my work by donation. Thank you!
Click here for more info!

Flag Counter

TESTB000 Release 2021-07-05
Send your 1.b4 games to me, please. Thank you! /Marek
Marek Trokenheim's homepage
(c) Marek Trokenheim

1.b4 c5

(...)

2.a3 d6 3.Bb2 cb4 4.ab4 b5 5.e4 (5.e3 d5+–) 5...a6 (5...Bd7 6.Nc3 Qb6 7.Ra5+–) 6.d4 (6.Bb5 Nd7+–) 6...e6 (6...Bb7 7.d5+=) 7.Nf3 (7.Bb5 Bd7 8.Bd7 Nd7+–) 7...Ne7 (7...Bb7 8.d5+=) 8.Bd3 (better 8.Bb5!? Nd7 9.Bc3+–) 8...Bb7+= 9.0–0 Ng6 10.e5?? (10.d5 Nf4+–) 10...d5?? (better 10...de5!? 11.de5 Bb4–/+) 11.Bg6 (11.c3!?+–) 11...hg6= 12.Bc1 (12.c3 Nc6=) 12...Be7 (worse 12...Bb4 13.Bd2 Be7 14.Be3–/+) 13.Bf4 (13.c3 Nd7=) 13...Nc6 (13...Bb4!? 14.Bg5 Qc7–/+) 14.c3= Rc8 15.Na3 0–0 16.Nc2 Qc7 17.Ne3 f6 (17...Qd8 18.Qd3+=) 18.Ng4 (better 18.ef6!? Qf4 19.fe7 Ne7 20.Qe1+–) 18...f5 19.Ne3 g5? (better 19...Qd8!? 20.Nc2 g5+=) 20.Ng5 Bg5 21.Bg5 Ne7 (21...f4 22.Ng4+–) 22.Qh5+– Bc6? (22...Rf7 23.Nd1+–) 23.f4 (better 23.Ra6!? Ra8 24.Rfa1 Ra6 25.Ra6 f4+–) 23...Be8 24.Qf3 Qc3? (24...Ng6 25.Ra3 Qc6+–) 25.Ra6 (better 25.Be7 Rf7 26.Bc5+–) 25...Nc6= 26.Rfa1 Qd4 27.Ra8?? (27.Rd1 Qb4 28.Qg3 d4=+) 27...Nb4 (better 27...Bh5! 28.Qh5 Qe3 29.Kh1 Ra8–+) 28.Rc8 (28.Rd1!? Qd1 29.Qd1 Ra8 30.Be7=) 28...Qa1–/+ 29.Kf2 (better 29.Nf1!? Qd4 30.Kh1–/+) 29...Nd3–+ 30.Kg3 (30.Ke2 b4 31.Nd5 ed5 32.Qd5 Kh8 33.Re8 Nc1 (33...Re8 34.Qd3 Ra8 35.Qh3 Kg8 36.Qb3 Kh7 37.Qb4–+) 34.Kf1 Re8–+) 30...Qe1 31.Kh3 Nf2 32.Kh4 Ne4 (better 32...Ng4 33.Kh3 Qe3 34.Qe3 Ne3–+) 33.g3? (33.Kh3 Ng5 34.fg5 d4–+) 33...Qg1 (better 33...Nd2 34.Qd1 Qf2 35.Kh3–+) 34.Be7?? (34.Rc2–+) 34…Qh2 0–1. Buanga123 (1800) – aravind555 (1800), lichess.org, 2020.

2.a3 e6 (--> 1.b4 e6 2.a3 c5).

2.Ba3 cb4= 3.Bb4 Nc6 4.Bc3 d5 5.e3 e5 6.d4 (6.Bb5 e4=) 6...e4 7.f3 (7.Bd2 Nf6=+) 7...Bd6–/+ 8.fe4 Qh4 9.g3 Qe4 10.Nf3 Qe3 11.Be2 Bh3 12.Bd2 Qe7 13.Ng5 Bd7 14.Nc3 (14.0–0 Nf6 15.Nf3 Ne4–+) 14...Nd4–+ 15.Nd5 Qe2 16.Qe2 Ne2 17.Ke2 Bc6 18.Rhf1?? (better is 18.c4–/+) 18...Bd5–+ (19.Kd3 Rc8 20.Rfe1 Ne7–+) –+. Seanypop – Darlanio, ChessWorld.net, 2004.

2.Bb2 b6 (--> 1.b4 b6 2.Bb2 c5).

2.Bb2 e5 3.bc5 (--> 2.bc5 e5 3.Bb2).

2.Bb2 Nf6 (--> 1.b4 Nf6 2.Bb2 c5).

2.b5 a5 3.a4 (--> 1.b4 a5 2.b5 c5 3.a4).

2.b5 Qc7 3.c4 a6 4.Bb2 ab5 5.cb5 d6 6.a4 b6 7.e3 Bb7 8.Nf3 Nd7 9.Be2 f6 10.0–0 g6 (10...e5 11.d3=) 11.Nh4 (better is 11.Ng5!+/–) 11...Bg7= 12.d4 Kf8 (12...e6 13.Qc2=) 13.dc5 bc5? (13...Nc5!? 14.Bf3 d5=) 14.Bc4 (14.Qd2 f5 15.a5 Ngf6+–) 14...g5? (better is 14...f5 15.Bc3 Bc3 16.Nc3 Qa5+/–) 15.Nf5+– Nh6? (15...Nb6 16.Be6 Bc8 17.Bc8 Qc8 18.e4+–) 16.Ng7 (better is 16.Nh6 Nb6 17.Qh5+–) 16...Kg7 17.Nc3 e5? (better is 17...Qa5+–) 18.Nd5 Qd8 19.a5 (19.Bc3 Nb6 20.Nb6 Qb6+–) 19...Bd5? (19...Ra5 20.Ra5 Qa5 21.f4 gf4 22.ef4+–) 20.Bd5 (better is 20.Qd5 Ra5 21.Ra5 Qa5 22.Qd6+–) 20...Ra5 21.Ra5 Qa5 22.Bc6 Nf8? (22...Nb8 23.Qd6 Nf7 24.Qe6 Nc6 25.bc6+/– (< 25.Qc6 Rb8=)) 23.Qh5?? (better is 23.Qd6!? Ng6 24.Qc5+–) 23...Ne6 (better is 23...Ng6+/–) 24.Bd5?? (better is 24.Ra1 Qb6 25.Bc3+–) 24...Nc7 25.Bf3 Rf8 (25...Qb5 26.Bc1–/+) 26.h4 (26.Bc6 Nb5 27.Rd1 Nc3 28.Bc3 Qc3=+) 26...gh4 (better is 26...g4!? 27.Bg4 Qb5=+) 27.Qh4 Qb5 28.Qg3 Kh8 29.Bc1 Ne6 (29...Nf7!?=+) 30.Qh3= Ng5 31.Qh6 Nf3 32.gf3 Qd7?? (better is 32...Rg8 33.Kh2 Qf1 34.Qf6 Rg7 35.Qd8 Rg8 36.Qf6 Rg7 37.Qd8 Rg8 38.Qf6=) 33.Qf8 1–0. stoker – Flip4, Live Game Caissa's Web, 2004.

2.b5 f6 3.e4+= d6 (3...e6 4.Nc3+=) 4.Bc4 e6 5.Nh3 b6 (5...d5 6.ed5 Ne7 7.Nc3 (7.de6? Qd4–+) 7...ed5 8.Nd5 Nd5 9.Qh5 g6 10.Qd5 Qd5 11.Bd5+–) 6.Nf4+– Ne7? (6...Qe7 7.Qh5 Kd8 8.Qh3+–) 7.Qh5 (better 7.Ne6 Be6 8.Be6+–) 7...Kd7?? (better 7...g6 8.Qf3 e5+–) 8.Ne6+– Qe8 9.Qh3 (9.Qe8!? Ke8 10.Nc7 Kd8 11.Na8 Nd7+–) 9...Bb7 1–0. DEFFM – GuestYLSV, freechess.org, 2018.

2.b5 h6 3.Bb2 (3.e4 Nf6 4.Nc3 d5=) 3...e6 (3...d5 4.e3=) 4.c4 (4.e4 d5=) 4...Qh4 (4...d5 5.e3=) 5.e3+= b6 (5...d5 6.Nf3 Qd8 7.d4+=) 6.Qf3 (6.Nf3 Qd8+=) 6...d5+= 7.Nc3 Bb7 8.cd5 ed5? (better 8...Nf6+=) 9.Nd5+– Bd5?? (9...Qd8 10.Bc4 a5+–) 10.Qd5 Qb4 (10...Nd7 11.Qa8 Qd8 12.Qd8 Kd8 13.Nf3+–) 11.Bc3 (better 11.Be5 Nd7 12.Qa8 Ke7 13.Qa7 Ngf6+–) 11...Qa4 (11...Qg4 12.Qa8 Bd6 13.Qa7+–) 12.Qa8 Be7 (12...Bd6 13.Qd5 Bc7 14.Bc4+–) 13.Qb8 Bd8 14.Qe5 Be7 15.Qg7 Bf6 16.Bf6 Nf6 17.Qh8 Ke7 18.Nf3 Qg4 19.Qa8 (better 19.Ne5 Qe4 20.Nc6 Ke6 21.Qc8 Kd6 22.Qf8 Ke6 23.Qe7 Kf5 24.Qf7 h5+–) 19...Qa4 20.Be2 (20.Qb7 Ke6 21.Qc6 Ke7 22.Qc7 Ke6 23.Qe5 Kd7 24.Qf6 Qe4 25.Ne5 Kc8 26.Nf7 Qd5 27.Bc4 a6 28.Bd5 Kb8 29.Qb6 Kc8 30.Qd8) 20...Ne4 21.0–0 (better 21.Bd1!? Qb4+–) 21...Nd6 22.Qh8 Nf5 23.Qe5 Kf8 24.Qf5 a6 25.Ne5 ab5 (25...Qc4 26.Bc4 Ke7 27.Qf7 Kd6 28.Qd7 Ke5 29.Qe6) 26.Qf7 1–0. jaddwarrior (1785) – revs, ChessWorld.net, 2015.

2.c3 b5 3.bc5+/– Ba6 4.e4 Qc7 5.d4 Nc6 (5...Qc6 6.Bd3+/–) 6.Be2 e6 7.e5 Rd8 8.Bg5 Be7 9.Be3 g6 (9...Qa5 10.Nf3+/–) 10.Nf3 f6 11.0–0 fe5 12.de5 Ne5? (better is 12...Bb7 13.a4 ba4+/–) 13.Bd4?? (better is 13.Ne5 Bc5 14.Bd4+–) 13...Nf3= 14.Bf3 Bf6 (14...Nf6 15.Qe2=) 15.Kh1 (15.Re1 Kf8+/–) 15...d5 (15...e5 16.Be3=) 16.Bf6 (16.cd6!? Rd6 17.Qe1 Bd4 18.cd4=) 16...Nf6= 17.Nd2 (17.Re1!? Kf7 18.Qd4+=) 17...Qc5–/+ 18.Qc1 (White claimed a win on time). blanco2003 – xorb, ChessWorld.net, 2013.

2.c3 b6 3.Bb2 (3.bc5 bc5 4.e4 Bb7=) 3...e6 (3...d5 4.bc5 bc5 5.c4=) 4.h4 (4.bc5 bc5 5.Na3 Nf6=) 4...cb4 (4...Nf6 5.bc5 Bc5 6.d4=+) 5.e4 (5.cb4 Nf6 (5...Bb4?? 6.Bg7 Nc6 7.Bh8+–) 6.a3 d5=+) 5...Bb7–/+ 6.f3 (6.cb4 Be4 7.Nc3 Bb7–/+) 6...bc3 7.Bc3 (7.Nc3 Be7–/+) 7...Nf6 (7...d5 8.Bb5 Nd7 9.d3–/+) 8.Bf6 (8.h5!?–/+) 8...Qf6–+ (worse 8...gf6 9.Nc3–/+) 9.Nc3 Bd6 (9...Bc5 10.Nge2–+) 10.Rh3 (10.Nge2 Nc6–/+) 10...Bc5 (10...Nc6 11.Bb5–+) 11.Nge2 Nc6 12.Nb5 (12.f4 0–0–+) 12...0–0 13.Nec3? (13.d4 Bb4 14.Kf2–+) 13...a6 14.Nc7 (14.d4 Nd4 15.Nc7 Ra7–+) 14...Qd4 15.Na8 (15.Qe2 Rac8 16.Ne6 de6 17.Rc1–+) 15...Qf2 (15...Ra8?! 16.Qe2–/+) 0–1. 488 – jaddwarrior (1610), ChessWorld.net, 2013.

2.c3 e6 (--> 1.b4 e6 2.c3 c5).

2.bc5 b6 3.cb6 ab6 4.Bb2 d5 5.e3 Bb7 6.Nf3 Nf6 7.Bb5 Bc6 8.Nc3 e6 9.Ne5 g6?? (better is 9...Qc7 10.f4 Bb4 11.Bc6 Nc6+/–) 10.Nc6+– Nc6 11.Bc6 Nd7 (11...Ke7 12.Na4 Ra4 13.Ba4+–) 12.Nd5! Rc8 (12...ed5 13.Ba8) 13.Nf6 1–0. marekt – bulldog_1313, ChessWorld.net, 2003.

2.d4 (--> 1.b4 c5 2.d4).

2.e3 b6 3.bc5= bc5 4.Bb5 a6 5.Ba4 e5 6.Ne2 Nc6 7.Bc6 dc6 8.Bb2 Bd6 9.d4 (9.f4!?=) 9...ed4 10.ed4 Nf6 (10...Ne7 11.dc5 Bc5 12.Qd8 (worse is 12.Bg7 Qd1 13.Kd1 Rg8–/+) 12...Kd8 13.Nd2=) 11.dc5= Bc5 12.Nd2 (12.Qd8 Kd8 13.Bf6 gf6=) 12...0–0 13.Nb3 Bb4 14.c3 Be7 15.Qc2 Nd5 (15...Qd5 16.0–0+=) 16.Rd1 Qc7 17.c4 Bb4 18.Nd2 Nf4 19.Nf4 Qf4 20.0–0 Bf5 21.Qa4?? (better is 21.Qc1–/+) 21...Bd2–+ 22.Qc6 Rfd8 (better is 22...Be6 23.g3 Qg5 24.Bc1 Bc1 25.Rc1–+) 23.c5 (23.Be5 Qe4 24.Qe4 Be4 25.Bc7–+) 23...Be4 24.Qb6 Qg4 (24...Qg4 25.Qg6 hg6 26.f3 Be3 27.Kh1 Rd1 28.Rd1 Qf3 29.Rg1 Qf2 30.Bg7 Qg1#) 0–1. rhometal (1670) – pvaras (2410), net–chess.com, 2010.

2.e4 (--> 1.b4 c5 2.e4).

2.Nf3 c4 3.e4+= b5 (3...d5!? 4.ed5 Qd5+=) 4.Nc3+/– a6 5.a4 Bb7 6.ab5 a5? (better is 6...ab5 7.Ra8 Ba8 8.Nb5 Be4 9.Bc4 d5+/–) 7.ba5+– Ra5 8.Ra5 Qa5 9.Bc4 e6 10.0–0 (10.Qe2 Nf6+–) 10...Bc5 (10...Nf6 11.Qe2+–) 11.Bb2 Nf6 12.d3 0–0 13.Qa1 Qb6? 14.Na4 Qc7 15.Bf6 gf6 16.Qf6 d5 17.Qh6 f6 18.ed5 ed5 19.Bb3 Bd6 20.Qh5 Kh8 21.Bd5 Bc8 22.c4 Qg7 23.d4 Bg4 24.Qh4 Be7 25.c5 f5+/– 26.Ng5 Bg5 27.Qg3 Be2 28.Rb1 Nd7 29.b6 Nf6? 30.b7 Nd7? 31.b8Q f4 32.Qf8! Nf8 33.Qc3 h6 34.c6 Ba6 35.c7 Qd7 36.Nb6 White prepares c8 36...Qe8 37.c8Q Bc8 38.Qc8 Qe7 39.Nd7 Kg7 40.Nf8 f3 41.Rb7 (41.Rb7 Bh4 42.Qg4 Bg5 43.Re7 Kf8 44.Qe6 Be7 45.Qf7#; 41.Nh7 Kg6 42.Rb6 Qe6 43.Qe6 Kh5 44.Bf3 Kh4 45.g3#) 1–0. Sartow,Arne (2285) – Bitterling,Max (2035), RSS7E–27 remoteschach.de, 2003.

2.Nf3 e6 3.bc5+= Bc5 4.Bb2 (4.d4 Be7+=) 4...Nf6 (4...Qb6 5.Qc1 Bf2 6.Kd1+=) 5.Nc3? (better is 5.e3!?=) 5...Qb6–/+ 6.e3? (better is 6.Qb1 Bf2 7.Kd1–/+) 6...Qb2–+ 7.Rb1 Qa3 8.Rb3 Qa5 9.Rb5 (9.e4 Ng4 10.d4 Bb4–+) 9...Qc7 10.d4 Be7 11.Na4 (11.Rb3 0–0–+) 11...a6 12.Rb3 (12.Rg5 0–0–+) 12...Qa5 13.Nc3 Bb4 14.Qd3 Nd5 15.Kd2 Bc3 16.Rc3 Qc3 17.Qc3 Nc3 18.Kc3 d5 19.Bd3 Bd7 20.Rb1 b5 21.Ne5 Nc6 22.Nf3 Rc8 23.Kb3 Na5 24.Kb2 Nc4 25.Kc1 0–0 26.h4 Rc7 27.Kd1 Rfc8 28.Ne5 f6 29.Nc4 dc4 30.Be2 Bc6 31.g4 e5 32.c3 Be4 33.Kd2 Bb1 0–1. Stankov,Stanimir – Dochev,D (2425), BUL CSKA Semifinal, Sofia BUL, 2010. (=1.Nf3 c5 2.b4)

2.Nh3 cb4 3.Ng5 –/+.

2.Nh3 Nc6 3.g4 (3.b5 Na5=) 3...f6 (3...cb4 4.Bg2–/+) 4.Ng1? (4.bc5 e5=) 4...Kf7?? (4...cb4 5.a3–+) 5.e3 (5.bc5 e5 6.e4 Bc5 7.Bc4 Ke8=) 5...h5?? (5...cb4 6.Bg2–/+) 6.Bc4 (6.bc5 hg4 7.Bc4 e6 8.Qg4 Ne5=) 6...e6 (6...d5 7.b5 dc4 8.bc6 hg4 9.f3–/+) 7.h3 (better is 7.bc5 Bc5 8.d4=) 7...Qa5?? (7...Nb4 8.c3 d5 9.Be2–/+) 8.Qe2 (better is 8.ba5 Na5 9.Bb5 a6+–) 8...b5?? (8...Nb4 9.Bb3–/+) 9.Na3 (9.Be6 de6 10.ba5 a6+–) 9...Rh7?? (better is 9...cb4 10.Nb5 Bb7–/+) 10.Qd1 (better is 10.ba5 bc4 11.Qc4 hg4 12.Qg4+–) 10…Ne5?? (better is 10...cb4 11.Bd3 g6 12.Nb5 Ne5–/+) ½–½. Vallejo Pons,Francisco (2415) – De la Riva Aguado,Oscar (2495), Capablanca mem, 1998.

2.a3 e5

(--> 1.b4 e5 2.a3 c5).

3.Bb2 f6 (--> 1.b4 e5 2.Bb2 f6 3.a3 c5).

3.Bb2 f6 4.bc5 Bc5 5.e3 d5 (--> 1.b4 e5 2.Bb2 f6 3.a3 d5 4.e3 c5 5.bc5 Bc5).

3.Bb2 Nf6 (--> 1.b4 e5 2.Bb2 Nf6 3.a3 c5).

2.a3 Nf6

3.Bb2 e6 4.b5 d5 5.e3 Bd6 6.c4 0–0 7.Nf3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.b5 Bd6 6.Nf3 0–0 7.c4 Nbd7).

3.bc5 e5 4.Bb2 Bc5 5.e3 Nc6 6.Nf3 e4 7.d4 Bb6 (worse is 7...ef3 8.dc5 fg2 9.Bg2+=) 8.Nfd2 0–0 9.d5 Nd5 10.Ne4 Ne3 (better is 10...Ba5!? 11.c3 Qb6=) 11.fe3+/– d5 12.Ned2 Re8 13.Be2 Re3 14.Nf1 Re8 15.Ng3 Bg4 16.Nc3 Attacking the isolated pawn on d5 16...Qh4 With the idea Qd3 17.Kf1 (17.Qd5? Rad8 18.Qd8 Rd8 19.Bg4 Qg4–+) 17...Ne5 18.Nd5 Rad8 19.Nb6? (better is 19.Be5 Be2 20.Qe2 Rd5 21.Qh5 Qh5 22.Nh5 Rde5 23.Nf4–+) 19...Qf6 20.Ke1 Rd1 21.Rd1 Be2 (worse is 21...ab6 22.Rf1 Qe7 23.Rd2–+) 22.Ne2 Nf3! (22...ab6?! 23.Rf1 Qe7 24.Be5 Qe5 25.Rf2–+; worse is 22...Qb6 23.Be5 Re5 24.Rd3–+) 23.gf3 Qf3 24.Be5 Qh1 25.Kd2 Qc6 26.Bd4 Qh6 27.Kd3 Qh3 28.Kd2 Qh2 29.Re1 ab6 30.Kd1 Qh3 31.a4 Qd7 32.Rg1 f6 33.Rg3 Re2! 34.Ke2 Qd4 35.c3 Qa4 0–1. Coope,Derek William (1705) – Brauweiler,Max, Germany – Scotland, 2006. (=1.a3 c5 2.b4 Nf6)

2.a3 g6

3.Bb2 f6 4.e3 (4.bc5 e5+/–) 4...Bg7 (4...cb4 5.ab4 d5 6.f4+=) 5.Bc4 (5.bc5 Qa5+/–) 5...Qb6 6.Bg8 (6.Nc3!?+=) 6...Rg8=+ 7.Ne2 cb4 8.ab4 Qb4 9.Bc3 Qg4 10.0–0 d5 11.f3 Qe6 12.Nd4 Qd6 13.Nb5 Qc6?? 14.N1a3?? a6 15.Nd4 Qd6 16.Ne2 Nc6 17.f4 f5 18.Bg7 Rg7 19.c4 d4 20.ed4 Nd4=+ 21.Nd4 Qd4 22.Kh1 Be6 23.d3 Rd8 24.Rf3 Bd7 25.Nc2 Qc3 26.d4 Bc6?? 27.Rc3+– e6 28.d5 ed5 29.Re3 Re7 30.cd5 Rd5 31.Re7 Ke7 32.Qe2 Kf7 33.Nb4 Bb5 34.Qa2 Bc6 35.Nd5 Kg7 36.Ne7 Be4 37.Qg8 Kh6 38.Qf8 Kh5 39.Kg1 h6 40.Qf6 Kg4 41.Qg6 Kh4 1–0. zobec – Segato, Live Game Caissa's Web, 2004.

3.Bb2 Nf6 4.d3 Bg7 5.Nd2 cb4 6.ab4 d5 7.g3 d4 8.Bg2 0–0 9.Ngf3 a6 10.Bd4 Nc6 11.Bc3 Bd7 12.Qb1 Qc8 13.Qb3 Bh3 14.0–0 Bg2 15.Kg2 h5 16.b5 ab5 17.Qb5 e6 18.Ra8 Qa8 19.Rb1 Rb8 20.Nc4 Nd5 21.Bg7 Kg7 22.Nce5 Ne5 23.Ne5 Nc3 24.Qb2 Nb1 25.Nd7 Kh6 26.Qc1 g5 27.Nb8 b5 28.f3 Qb8 29.Qb1 Kg6 30.c4 b4 31.Qb3 f6 32.d4 Qb6 33.c5 Qb5 34.Qd3 Qd3 35.ed3 b3 36.Kf2 b2 37.Ke2 b1Q 38.Kd2 Qb2 39.Ke3 Qc1 40.Ke4 Qe1 0–1. golfx – ffrecia, kurnik, 2012. (=1.a3 c5 2.b4 g6)

2.b5 Qb6

3.a4 d5 4.c4 (4.Nf3 Bf5=) 4...dc4=+ 5.e3 Qf6 6.Nc3 e5 (6...Nd7 7.Nf3=) 7.Bc4 Nd7 8.Nd5 (8.a5 Qg6+=) 8...Qg5?? (better 8...Qd6=) 9.Nc7+– (9.Nc7 Kd8 10.Na8+–) 1–0. DEFFM – GuestBXPC, freechess.org, 2018.

3.c4 a6 4.a4 ab5 5.cb5 d6 6.Bb2 Nf6 7.Bf6 ef6 8.Nc3 Be6 9.Rc1 (9.Nh3 d5=+) 9...Be7 10.Nf3 0–0 11.e3 Qa5 (11...d5 12.Qc2=+) 12.Be2 (12.Bd3 d5=) 12...Qb4 (12...d5 13.0–0=+) 13.0–0 Bb3 Now all is on a4 14.Qe1 Ba4?? (better 14...Qa5=) 15.Rb1 (15.Nd5 Qe4 16.Nb6 Ra5+–) 15...Qa3 (15...Bb3 16.Bd1 Ra3 17.Bb3 Rb3 18.Nd5 Qb5 19.Ne7 Kh8 20.Rb3 Qb3 21.Qb1+–) 16.Ra1 (16.Na4?! Ra4 17.Ra1 Qb4=) 16...Qb4 17.Na4?? (better 17.Nd5 Qe4 18.Nb6+– (18.Ne7?! Qe7 19.Bd1 Bd1 20.Ra8 Bf3 21.gf3 f5+=)) 17...Ra4= 18.Ra4 (18.d4 Re8=) 18...Qa4 19.d4 c4 20.Qc3 (20.Qa1!? Qb5 21.Rb1=+) 20...d5=+ (worse 20...Qb5 21.Bc4 Qd7 22.Qb3+=) 21.Ra1 (21.Rb1=+) 21...Qb4 (better 21...Qb5!? 22.Qc2 Rc8–+) 22.Qb4=+ Bb4 23.Ra8 (23.Ra4 Bc3=) 23...c3 24.Bd1 g6 (24...Nd7 25.Ra7 Rb8 26.Kf1=+) 25.Bc2 (25.Ra4 Bd6 26.Ra7 b6=) 25...Nd7=+ 26.Rf8 (26.Ra4!? Bd6 27.Ra7=+) 26...Kf8–/+ 27.Ne1 Nb6 28.Nd3 Ba5 (28...Ba3 29.Kf1–/+) 29.Bb3 (29.Nc5!?=) 29...Nc4–/+ 30.Bc4 dc4 31.Nc1? (31.Ne1!?–/+) 31...Ke7 (31...c2 32.Kf1 Bd2 33.Na2–+) 32.Na2? (better 32.Kf1–+) 32...c2 33.Kf1 Bd2 34.Ke2 c1Q 35.Nc1 Bc1 36.Kd1 Bb2 (36...Bb2 37.Kc2 c3–+) 0–1. AleksandrNekhoroshik (1720) – Al_dru (1705), lichess.org, 2021.

3.c4 d6 4.a4 e5 5.Bb2 d5 (5...Be6 6.a5 Qc7 7.e3=) 6.d3 (6.cd5!? Qd6 7.e4+=) 6...dc4 7.dc4 Bd6 8.e3 (8.a5 Qd8+=) 8...Be6 (8...Nf6 9.Nf3 Bg4 10.h3 Bf3 11.Qf3=) 9.Bd3 (9.a5 Qd8+=) 9...f5 (9...Nf6 10.a5 Qc7 11.a6=) 10.Nd2 e4?? (10...Nf6 11.Ngf3+=) 11.Bc2?? (better is 11.Bg7 ed3 12.Bh8+–) 11...Nf6+= 12.Bb3 Ng4 13.Ne2 h5 14.0–0?? h4?? 15.h3+= Nf2?? 16.Rf2+– g5 17.Qf1 g4?? 18.Bh8 gh3 19.gh3 Qc7 20.Nf4 Bf4 21.Rf4 Nc6 22.bc6 Rd8 23.Bf6 Rd2 24.Rd1 Rd1 25.Qd1 Qc6 26.Qd8 Kf7 27.Qe7 Kg6 28.Bd1 Bf7 29.Bh5! Kh5 30.Qf7 Kh6 31.Qg7 Kh5 32.Qg5 (32.Rf5) 1–0. Fournier,Frederic (1930) – ripped84 (1760), Active (1/0), 2003.

3.e4 Nf6 4.e5 (4.Nc3 Qe6 5.Qe2 d5=) 4...Nd5 (4...Qe6 5.Nf3=) 5.c4 (5.Bc4 e6+=) 5...Nc7= 6.Nc3 e6?? (better 6...a6=) 7.Na4+– Qa5 8.Bb2 Qa4 (8...Nca6+–) 9.Qa4 1–0. GuestGSQL – GuestSNWC, freechess.org, 2018.

2.b5 d5

(--> 1.b4 d5 2.b5 c5).

3.Bb2 b6 4.Nf3 Bb7 5.e3 Nf6 6.c4 e6 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5).

3.Bb2 d4 4.e3 e5 (--> 1.b4 e5 2.b5 d5 3.Bb2 d4 4.e3 c5).

3.Bb2 Nd7 4.e3 e5 5.Nf3 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 c5).

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

3.Bb2 Nf6 (--> 1.b4 d5 2.Bb2 Nf6 3.b5 c5).

3.Bb2 Nf6 4.e3 b6 5.c4 e6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 b6).

3.Bb2 Nf6 4.e3 e6 5.Nf3 Be7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Be7).

3.Bb2 Nf6 4.e3 Bf5 5.c4 e6 6.Nf3 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.b5 c5 6.c4).

3.Bb2 Nf6 4.e3 Bf5 5.Nf3 e6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.b5 c5).

3.e3 e5 (--> 1.b4 e5 2.b5 d5 3.e3 c5).

3.e3 e5 4.Bb2 d4 (--> 1.b4 e5 2.b5 d5 3.Bb2 d4 4.e3 c5).

3.e3 e5 4.Bb2 Bd6 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.e3 c5).

3.e3 e5 4.Bb2 Bd6 5.Nf3 Nd7 (--> 1.b4 e5 2.b5 d5 3.Bb2 Bd6 4.Nf3 Nd7 5.e3 c5).

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

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

3.e3 Nf6 4.Bb2 Bf5 5.Nf3 e6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.b5 c5).

3.e3 Nf6 4.c4 e6 5.Nf3 Nbd7 6.Qc2 Bd6 7.Bb2 0–0 8.Be2 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.Qc2).

3.Nf3 Nf6 4.e3 Bf5 5.Bb2 e6 (--> 1.b4 d5 2.Bb2 Bf5 3.e3 Nf6 4.Nf3 e6 5.b5 c5).

2.b5 d6

3.Bb2 Bd7 4.e3 Nf6 5.c4 e6 6.a4 a6 7.Qc2 d5 8.Nf3 ab5 9.ab5 Ra1 10.Ba1 dc4 11.Bc4 g6 12.0–0 Bg7 13.Be5 0–0 14.Qb2. Whippo – Keyes, North Carolina 1976.

3.Bb2 g6?? 4.Bh8+– Bg7 (4...Nh6 5.Bb2 Bf5+–) 5.Bg7 Nf6 (5...f6 6.Bh8 Nh6 7.d4+–) 6.Bf6 ef6 7.e3 Qd7 8.g3 Qc7 9.a4 Nd7 10.Bg2 b6 (10...Ne5+–) 11.Ba8 Bb7 12.Bb7 Qb7 13.f3 Kd8 14.c3 Qd5 15.Ne2 (15.e4 Qe6+–) 15...Ne5 16.Nf4 Qc4 17.Ne2 (better 17.Na3 Nd3 18.Kf1 Nb2 19.Nc4 Nd1 20.Rd1 Ke7+–) 17...Qd5 18.0–0 (18.d4!? Nf3 19.Kf2 Ng5+–) 18...Nf3 19.Rf3! Qf3 20.Nc1 (better 20.a5+–) 20...f5 (better 20...Qd1 21.Kf2 Qc1–+) 21.Qf3+– Kd7 22.Qb7 Ke6 23.Qa7 Ke5 24.a5 (24.Qe7 Kd5 25.d3 c4 26.e4 fe4 27.de4 Kc5 28.Qc7) 24...Ke4 25.Qb6 (25.Ra4 c4 26.Rc4 Ke5 27.Qf7 ba5 28.Nd3) 25...Kf3 26.Qd6 (26.Ra4 c4 27.Rc4 g5 28.Qc6 d5 29.Qd5) 26...Kg4 (26...g5 27.Ra4 c4 28.Rc4 f4 29.Rf4 gf4 30.Qf4) 27.a6 (27.Qf4 Kh5 28.Qh4) 27...Kg5 28.a7 f6 (28...Kh6 29.a8Q f4 30.Qg8 f6 31.Qf4 g5 32.Qf6 Kh5 33.Qfg5) 29.a8Q (29.Qf4 Kh5 30.Qh4) 29...h6 (29...Kh6 30.Qh8 f4 31.Qf4 g5 32.Qhf6 Kh5 33.Q4g5) 30.Qad8 (30.Qf4 Kh5 31.Qaf3) 30...Kh5 31.Q6f6 (31.Qf4 c4 32.Qh4) 31...g5 32.Qdf8 (32.Qf5 c4 33.Qe8) 32...Kg4 (32...f4 33.h3 fe3 34.Q8h6) 33.Q6h6 (33.Qf5 Kh5 34.Q8f7) 33...Kf3 (33...c4 34.Kg2 f4 35.h3) 34.Qf5 1–0. atif_zubair – Tocante, lichess.org, 2019.

3.Nf3 h6 4.Bb2 Qa5 5.c4 Nd7 6.Bc3 Qb6 7.e3 e6 8.a4 Ngf6 9.h3 (9.a5 Qc7+=) 9...a6= 10.Qb3 a5 11.d3 Be7 12.d4 Qc7 13.Bd3 b6 14.Nbd2 Bb7 15.Qc2 d5 (15...cd4 16.Bd4 Rc8 17.0–0=+) 16.Ne5 (16.cd5 Nd5 17.0–0 0–0=) 16...Ne5 (16...cd4!? 17.ed4 Ne5 18.de5 Nd7=+) 17.de5= White is in command. 17...dc4 18.Nc4 Bg2? (better 18...Nd5=) 19.Rg1+– Bh3 (19...Bd5 20.ef6 Bf6 21.Bf6 gf6+–) 20.ef6 Bf6 (20...gf6 21.Rg3 Bf5 22.Bf5 ef5 23.Qf5+–) 21.Bf6 Qh2 (21...gf6 22.Rg3 0–0–0 23.Rh3 h5+–) 22.Rg7 Qh1 (22...Rd8 23.Be4 Rd5 24.Bd5 ed5 25.0–0–0+–) 23.Kd2 (better 23.Ke2 Qh2 24.Be4 Rd8+–) 23...Qf3 (23...Qh2 24.Kc3 Qc7+–) 24.Rg3 (better 24.Nd6 Kd7 25.Rf7 Kd6 26.Be7 Kd7 27.Rf3 Ke7 28.Rh3+–) 24...Qf2 25.Be2 (better 25.Kc1 Qf6 26.Ra3+–) 25...Bf1?? (better 25...Qf6 26.Rag1 Rd8 27.Ke1 Qh4 28.Nb6 Rg8+–) 26.Rf1+– Qg3 27.Bh8 0–0–0 (27...Rd8 28.Kc1 Qg6 29.Bf6+–) 28.Kc3 Rh8 (28...f5 29.Be5 Qg5 30.Bf3+–) 29.Rf7 e5 30.Qf5 Kb8 31.Qe5 (31.Rf8 Rf8 32.Qf8 Ka7 33.Qe7 Kb8 34.Qd8 Kb7 35.Nd6 Ka7 36.Qd7 Kb8 37.Qb7) 31...Qe5+– 32.Ne5 Re8 33.Nc6 Kc8 34.Bg4 Re6 35.Be6 1–0. lindsey000 – shirlmygirl, gameknot.com, 2017.

2.b5 e5

3.Bb2 d6 (--> 1.b4 e5 2.Bb2 d6 3.b5 c5 – without 4.bc6).

3.c4 d6 4.Bb2 Be6 5.e3 a6 6.a4 ab5 7.ab5 Ra1 8.Ba1 Qa5 (8...Nf6 9.Nf3=) 9.Nc3 (9.Bc3 Qc7=) 9...Qb4 (9...Nd7 10.Nf3=+) 10.Nd5 Bd5 11.cd5 (11.Bc3 Qa3 12.cd5 Nf6=+) 11...c4 (better is 11...Nf6!?=+) 12.Qc2+= Nf6 (12...Qb5 13.Bc4 Qb4 14.Nf3+=) 13.Bc4+/– Be7 14.Bc3?? (14.Ne2 Nbd7 15.Qb3 Qb3 16.Bb3 0–0+/–) 14...Qc5 (14...Qc4 15.d3 Qd5 16.Nf3–+) 15.Nf3?? (better is 15.Qb3 Nbd7 16.d4+/–) 15...e4 (15...Qc4!? 16.d3 Qd5 17.0–0–+) 16.Nd4?? (better is 16.Bf6 ef3 17.Bd4 fg2 18.Rg1+–) 16...Qc4–+ 17.Nf5 Qc7?? (better is 17...Nd5 18.Qb2 Rg8–+) 18.0–0 0–0 (better is 18...Nd5 19.Qe4 Nc3 20.dc3 g6–/+) 19.Qb3? (better is 19.f3!?=+) 19...Rc8 20.Bd4 Qc2?? (20...g6 21.Ne7 Qe7 22.f3–+) 21.Qa3?? (better is 21.Ne7 Kf8 22.Qc2 Rc2 23.Bf6 gf6 24.Nf5+–) 21...Nbd7?? (better is 21...Nd5 22.Bg7 Nd7–/+) 22.Ne7+– Kf8 23.Nc8 Qc8 24.Qd6 Ke8 (24...Kg8 25.f3+–) 25.b6 Kd8 26.Bf6 gf6 27.Qf4 (better is 27.f3 ef3 28.Rf3 Qc1 29.Rf1 Qb2+–) 27...Ke8 (27...Qc4 28.d6 Qe6 29.f3 ef3 30.Rf3 Nb6 31.Qd4+–) 28.Qh6 (better is 28.Qe4 Kf8+–) 28...Nb6 (28...Qc5 29.Qh7 Qd5 30.Qh8 Ke7 31.Qh4+–) 29.Qh7 (better is 29.Qf6 Nd5 30.Qh8 Kd7 31.Qh7 Qc2 32.Qf7 Ne7+–) 29...Ke7 (29...Qc4 30.Qh8 Ke7 31.d6 Kd7+–) 30.Qe4 Kd6 (30...Kd8 31.d6 Qe6 32.Qb7 Qd6 33.Qf7+–) 31.d4 (31.Qf4 Kd7 32.Qf6 Qd8 33.Qf7 Qe7 34.Qe7 Ke7+–) 31...Nc4 (31...Nd5 32.Qd3+–) 32.Qf4 (32.Qb1 b5 33.Qb4 Kd7 34.Qb5 Ke7+–) 32...Ke7 (32...Kd5 33.Qf6 Qe6 34.Qf3 Kd6 35.Qb7 Qd5 36.Qb4 Ke6+–) 33.Qe4 (better is 3.Rc1 b5 34.d6 Ke6+–) 33...Kf8?? (33...Kd6 34.Rb1 b6+–) 34.Rc1 b5 35.h3 Qb7 36.Qh4 (36.Qf5 Ke7+–) 36...Ke7 37.d6 (better is 37.e4!? Qa8+–) 37...Nd6 38.d5 (38.e4 b4+–) 38...b4 (38...Qd5 39.Rc7 Ke6 40.Qg4 Qf5+–) 39.e4 b3 40.Rb1 (better is 40.e5 Ne8 41.d6 Kd8+–) 40...Qb4 41.e5 (better is 41.Qg3+–) 41...Qh4–+ 42.ed6 Kd6 43.Rb3 Qc4 (43...Kd5 44.Rd3 Ke5 45.Re3 Kd4 46.Re7–+) 44.Re3 (44.Rb6 Ke5–+) 44...Kd5 45.Kh2 (45.g3 Kd6–+) 45...f5 46.g4 (46.Rf3 Qe4–+) 46...f4 (better is 46...fg4 47.hg4 Qg4 48.Rd3 Ke5 49.Re3 Kf4–+) 47.Re7 (47.Re1–+) 47...Qf1 48.f3 Qf3 49.Rd7 (49...Ke6 50.Kg1 Qe3 51.Kh1 Qe1 52.Kg2 Qe2 53.Kg1 Kd7 54.g5 f3 55.g6 Qg2; 49.Kg1 Qg3 50.Kf1 Qh3 51.Ke2 f3 52.Ke3 f2 53.Kf2 Qh4 54.Kg2 Qe7–+) 0–1. Scirocco – migottaichibolz3, Live Game Caissa's Web, 2004.

3.e3 d5 4.c4 d4 5.Qb3 Bd6 6.g3 Be6 (6...Nf6 7.Bg2–/+) 7.Bg2=+ Qe7 8.e4 (8.d3 Nf6=+) 8...Nf6–/+ 9.d3 h6 (9...0–0 10.Nf3=+) 10.Ne2 0–0 11.0–0 b6 (11...a6 12.b6=+) 12.f4= a6 13.f5 Bd7 14.Qd1? (better is 14.Na3=+) 14...ab5–+ 15.cb5 Bb5 16.a4 (16.Na3 Ba4 17.Qd2 b5–+) 16...Ba6 (better is 16...Qa7–+) 17.Bd2? (17.Na3–+) 17...c4 (better is 17...Bd3 18.Ra3 Ba6 19.Ra2–+) 18.dc4 Bc4 19.Qc2?? (19.Bc1 b5–+) 19...Rc8 (19...Be2 20.Re1 d3 21.Qc4–+) 20.Qb2 (20.Qd1 Bc5 21.Kh1 Bd3–+) 20...Nc6 (better is 20...Be2 21.Re1 d3 22.Nc3 Bc5 23.Kh1–+) 21.Qb6?? (21.Re1–+) 21...Be2 (21...Rab8 22.Qb8 Rb8 23.Rc1 Be2 24.Rc6–+) 22.Rf2 (22.Rc1 Rab8 23.Rc6 Rb6 24.Rc8 Kh7–+) 22...d3 23.Nc3 (23.Qb2 Bc5 24.h3 Rab8–+) 23...Rab8 (23...Bc5 24.Qb1 Bf2 25.Kh1–+) 24.Qe3 (24.Qa6 Nb4 25.Qa5 Bc7–+) 24...Nd4 (24...Bc5!? 25.Ne2 Be3 26.Be3–+) 25.g4 (25.Ne2 de2 26.Qd3 Bc5–+) 25...Bb4 (better is 25...Nc2!? 26.Qg3 Na1 27.Ne2 de2 28.Re2 Qa7 29.Be3 Qa4 30.g5 hg5 31.Qg5 Qd1 32.Bf1–+) 26.g5 Ne4 (better is 26...Ng4 27.Qg3 Bc3 28.Bc3 Rc3 29.gh6 Qf6–+) 27.Ne4 (27.Nd5 Qd6 28.Bb4 Rb4 29.Be4–+) 27...Bh5 (better is 27...Nc2 28.f6 Qd8–+ (28...Ne3?! 29.fe7 Nc2 30.Ra2–+)) 28.gh6 (28.f6 Bd2 29.Rd2 Qe6 30.fg7 Nc2 31.Qd3 A) 31...Na1 32.Nf6 Kg7 33.Qh7 Kf8 34.Qh6 Ke7 35.Nd5 (< 35.Qh5 Rc1 36.Bf1 Rd8=+) 35...Ke8 36.Qh8 Kd7 37.Nb6 Kc7 38.Nd5 Qd5 39.Qc8 (39.Rd5?? Rh8 40.Re5 Rb1 41.Kf2 Bd1–+) 39...Rc8 40.Rd5–/+; B) 31...Rb3 32.Nf6 Qf6 33.gf6 Rd3 34.Rd3 Na1=) 28...Ne2 (28...Bd2 29.Rd2 Nb3–/+) 29.Re2?? (29.Kh1 Bc5 30.Nc5 Qc5 31.Qg5+–) 29...Bd2?? (29...Be2 30.hg7 Bd2 31.Qd2 Qa7 32.Kh1 Rc6= (32...Kg7 33.f6 Kh7 34.Qg5+–)) 30.hg7 (better is 30.Rd2 Be2 31.f6+–) 30...de2 (30...Be3 31.Re3 Qa7 32.Nf6 Kg7 33.Nh5 Kh6–+) 31.Qh6?? (better is 31.Nd2 Rb2 32.Nf3 Kg7 33.Ne5–+) 31...Bh6 32.f6 Qa7 33.Kh1 e1R! 34.Re1 Bf4 35.Nc5 Rc5 36.Rd1 Rc1 37.Rc1 Bc1 (38.Be4 Qe3 39.Bh7 Kh7 40.g8Q Rg8 41.a5 Bf3) 0–1. Slavisa666 – ROCKWELL2, Live Game Caissa's Web, 2004.

3.e4 (--> 1.b4 c5 2.e4 e5 3.b5).

2.b5 e6

3.Bb2 (--> 1.b4 e6 2.Bb2 c5 3.b5).

3.Bb2 d5 4.e3 Nf6 5.c4 Be7 6.Nf3 0–0 7.a4 Nbd7 8.Be2 b6 9.0–0 Bb7 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2 0–0 8.0–0 d5 9.a4 Nbd7).

3.Bb2 Nf6 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 c5).

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

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

3.Bb2 Nf6 4.e3 d5=+ 5.Nf3 Bd6 6.c4 0–0 7.Be2 b6 8.0–0 Bb7 9.d4 Nbd7 10.Nbd2 Re8 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 Bd6 6.c4 Nbd7 7.Be2 0–0 8.0–0 b6 9.d4 Bb7 10.Nbd2 Re8).

3.c4 Be7 4.e3 Bf6 5.d4 cd4 6.ed4 Qa5 7.Bd2 Qb6 8.Be3 d5 9.c5 Qa5 10.Qd2 Qd2 11.Nd2 a6 12.Ngf3 ab5 13.Bb5 Bd7 14.Bd3 Nc6 15.0–0 Nb4 16.Bb1 Nc6 17.a4 Nge7 18.Nb3 Nf5 d4 draws heavy fire (18...e5 19.a5+=) 19.a5 0–0 20.Bf5 ef5 21.Ra2 Nb4 22.Ra3 Bb5 23.Rc1 Nc6 24.Rca1 Rfe8 25.Nc1?? Re4 26.Nd2 Re6 27.Na2 Nd4 28.Rb1 Bc4 29.Nc4–/+ dc4 30.Rb7 Nc2 31.Ra4 Ne3 32.fe3= Re3 33.Rc4 Ra3 (33...Ra3 34.c6 Ra2+/–) 0–1. horacyad2010 – biculin, kurnik, 2011.

3.e3 b6 4.c4 Bb7 5.Nf3 Nf6 6.Bb2 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4).

2.b5 f5

3.Bb2 a6 4.a4 ab5 5.ab5 d6?? (better 5...Ra1 6.Ba1 Nf6=) 6.Ra8+– Be6 (6...Nd7 7.Nc3+–) 7.e3 Bd5 (7...Nf6 8.Nf3+–) 8.Qh5 (better 8.Nc3 Bf7 9.Qa1 Nf6+–) 8...g6 9.Qh4 Na6 (9...Nf6 10.Nc3 Be6+–) 10.Rd8 Kd8 11.ba6 (11.ba6 ba6 12.Bh8+–) 1–0. DEFFM – chessamasta, freechess.org, 2019.

3.Bb2 d5 4.Nf3=.

3.Bb2 Nf6 4.e3 (4.Nf3 d5=) 4...e6 (4...d5 5.Nf3=) 5.Nf3 b6 (5...d5 6.Be2+=) 6.Be2 Bb7 7.0–0 Be7 8.c4 (8.Nc3 0–0+=) 8...0–0 9.d4 Ne4 10.Nbd2 d6 11.Qc2 Nd7 12.Rfd1 Qe8 13.dc5 (13.Qd3 a6=) 13...Ndc5 14.Ne1 (14.Ne4 fe4 15.Qc3 Qf7 16.Qg7 Qg7 17.Bg7 Kg7–+ (17...ef3?! 18.Bf8 fe2 19.Be7 ed1Q 20.Rd1–/+)) 14...Qg6 15.f3 Nd2 16.Rd2 h5 (16...a6 17.Nd3=+) 17.Rad1 (17.Nd3 Rac8=) 17...Rad8 (17...a6 18.Bd4=) 18.Nd3+= Qh6 19.f4 g5 20.Nc5+= bc5 21.g3 h4= 22.gh4 gf4=+ 23.ef4 (23...Qg6 24.Kf2 Qg2 25.Ke3 Qh3 26.Kf2 Bh4 27.Kg1 Qg2). Salvi,Ricardo Wilson – Correa Fo,Sidney, Sao Paulo op, 1995.

3.e4 d6+=.

2.b5 g6

3.Bb2 Nf6 (--> 1.b4 Nf6 2.Bb2 g6 3.b5 c5).

3.Bb2 Nf6 4.e3 Bg7 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.b5 c5).

3.Bb2 Nf6 4.e3 Bg7 5.Nf3 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.b5 0–0 5.Nf3 c5).

3.c4 Bg7 4.Nc3 Nf6 5.Bb2 0–0 6.a4 b6 (6...d6 7.Nf3=+) 7.e3= Bb7 8.Nf3 e6 9.Be2 d5 10.0–0?? (10.cd5 Nd5 11.0–0 a6=) 10...Nbd7?? (better 10...d4–+) 11.d4 Re8 (11...dc4 12.Bc4 Rc8 13.Bd3=) 12.Qc2 (12.cd5 Nd5 13.Nd5 Bd5=) 12...Rc8 13.dc5 bc5 (13...Rc5 14.Nd2=) 14.Rad1 e5? (better 14...Qa5!?=) 15.cd5+– Nb6 (15...e4 16.Ng5+–) 16.d6 (16.e4 Nh5+–) 16...Qd7 (16...Re6 17.e4 Ne8 18.Nd2 Nd6 19.Bg4+–) 17.a5 Nbd5 18.b6 (18.Nd5 Bd5 19.Ne5 Qd6 20.Nf7 Kf7 21.Bf6 Kf6+–) 18...ab6+– 19.ab6 (better 19.Bb5!? Qd6 20.Be8 Re8 21.e4+–) 19...Nb6= 20.e4 Re6 21.Qb3 (21.Ng5!? Rd6 22.Nb5+=) 21...Rd6= 22.Nb5 Rd1 (22...Qe6!? 23.Qe6 Re6=+) 23.Rd1= Qc6? (better 23...Qe6!? 24.Qe6 fe6+=) 24.Ne5 (better 24.Rd6 Qe4 25.Nc3+– (worse 25.Rb6 Qe2 26.Nc3 Bd5+–)) 24...Qe4? (better 24...Qe6 25.Qe6 fe6+–) 25.Bf3 (better 25.Qf7 Kh8 26.Bf3 Bd5 27.Be4 Bf7 28.Nf7 Kg8+–) 25...c4?? (better 25...Bd5 26.Qc3 Qb4–/+) 26.Be4 cb3 27.Bb7 Rc2 28.Bd4 (better 28.Rd8 Bf8 29.Nd3+–) 28...b2+– 29.Nd3 (29.Bb6?? Rc1 30.Nc3 b1Q–+) 29...Na4? (better 29...Nc4+–) 30.Na3+– Rd2 (30...Rc7 31.Nb2 Nc3 32.Bc3 Rc3 33.Rd8 Bf8+–) 31.Rd2 Ne4 32.Rb2 (better 32.Be4 Bd4 33.Bc6 Nc5+–) 32...Bd4 33.Re2 (33.Rb4!? Nec3+–) 33...Nec3 34.Re8 Kg7 35.g3 Nb6 36.Nf4 Nd7 (36...Nd1 37.Nh3+–) 37.Bg2 (37.Rd8 Bc5+–) 37...Nc5 38.Nc4 Bf6 (38...Kf6 39.Kf1 h5 40.Rd8+–) 39.Rc8 (39.Nd6 N5a4+–) 39...Nb3 40.Nd6 Nb1 (40...Be5+–) 41.Bd5 (41.Ne8 Kh6 42.Nf6 Kg7+–) 41...N3d2 (41...Be5 42.Ne8 Kf8 43.Nd3+–) 42.Nf7 (better 42.Ne8 Kh6 43.Nf6 Kg7 44.Ne8 Kh6+–) 42...Bd4 (42...Bb2 43.Ng5 Kf6 44.Nh7 Kg7 45.Ng5+–) 43.Nd6 (better 43.Ng5 Kf6 44.Nh7 Kg7 45.Nf8+–) 43...Ne4 (43...Kf6 44.Rc6 Kg7 45.Rc7 Kf6 46.Ne8 Kf5 47.Rf7 Ke5 48.Re7 Kf5 49.Be6 Ke4 50.Bg4 Be5 51.Nf6 Kd4 52.Ne2 Kc4 53.Re5+–) 44.Kg2 (44.Rc7 Kh6 45.Nf7 Kg7 46.Ne5 Kf6 47.Ng4 Kg5 48.Be6 Bf2 49.Kg2 Ng3 50.Nh3 Kh4 51.hg3 Bg3 52.Rh7) 44...Nbc3 (44...Nd6 45.Rd8 Be5 46.Rd7 Kf6+–) 45.Ne4 Nb5 (45...Ne4 46.Be4 Be5 47.Ne6 Kf6 48.Rc6+–) 46.Bg8 (46.g4 Bf6 47.Nh5 Kh6 48.Nhf6 g5 49.Nh5 Nd4 50.Rf8 Kg6 51.Rf6) 46...Bc3 47.Nd6! Na3 (47...Nd6 48.Rc7 Double attack (48.Rc6 Decoy)) 48.Bb3 Bb2 (48...Nc2 49.Ne6 Kf6 50.Ne4 Kf7 51.Rc7 Kg8 52.N4g5 Ne1 53.Kh3 Bf6 54.Rc8 Bd8 55.Rd8) 49.Kf3 (49.Rc7 Kh6 50.Nf7 Kg7 51.Ne5 Kf6 52.Ng4 Kf5 53.Be6 Ke4 54.Rd7 Nc4 55.f3) 49...Nb5 (49...h6 50.Ne8 Kh8 51.Rc7 Nc4 52.Ng6 Kg8 53.Bc4) 50.Rb8 (50.Nf5! gf5 51.Nh5 Kg6 52.Rc6 Nd6 53.Rd6 Bf6 54.Rf6 Kh5 55.h4 f4 56.Bf7) 50…Nd4 (50...Nd4 51.Ke4 Nb3 52.Rb3 Ba1 53.Rb1 Bc3 54.Nd5 Ba1 55.Ra1 Kh8 56.Ra7 h5 57.Nf6 g5 58.Rh7). KLINGON09 (1700) – Waugh (1680), lichess.org, 2019.

2.c3 cb4

3.cb4 Nc6 4.a3 e6 5.Bb2 a5 6.b5 Nb8 7.e3 b6 8.Nf3+= Bb7 9.Qc2 d5 10.Nc3 Nd7 11.Be2 Rc8 12.0–0 Bd6 13.h3 Ne7 14.d4 g6 15.Rfc1+= h5 16.Qd2 0–0 17.a4 Nc5?? 18.dc5+– Bc5 19.Ba3 Ba3 20.Ra3 Nf5 21.Raa1 Nd6 22.Rc2 Nc4 23.Bc4 Rc4 24.Qe1 Qf6 25.Rac1 Rfc8 26.Nd4 Rd4? 27.ed4 Qd4 28.Ne2 Qd3 29.Rc8 Bc8 30.Rc8 Kg7 31.Rc1 Qb1 32.Rb1 e5 33.Rd1 d4 34.Nd4! ed4 35.Rd4 f6 36.Qd2 (36.Qd2 Kg8 37.Rd7 h4 38.Qd5 Kf8 39.Qf7; 36.Rd7 Kh6 37.Qe3 g5 38.Qe7 f5 39.Qd6) 1–0. Fournier,Frederic (1800) – qusilu (1770), Active blind, 2011.

3.cb4 Qc7 4.a3 e6 5.Bb2 Bd6?? 6.e3?? Nf6+= 7.Nf3 h5 8.d4 Ng4 9.Be2 Nh2? 10.Nh2 Bh2+/– 11.Rh2?? Qh2–+ 12.Kd2? Qc7 13.Bf3 Nc6 14.Nc3 b6?? 15.Qe2?? Bb7–+ 16.Rc1 Rc8 17.Kc2? f6 18.Kb1 g6 19.Ka1? 0–0 20.g3 Kh7 21.Ne4–/+ a5 22.ba5? Na5?? 23.Rc7+– Rc7 24.Nc5?? bc5–/+ 25.dc5 Bf3 26.Qf3 Rc5 27.Qa8?? Ra8 0–1. Fournier,Frederic (1810) – AlIThatremains (1915), Active blind, 2011.

3.cb4 d5 (--> 1.b4 c6 2.c4 d5 3.cd5 cd5).

2.c3 e5

(--> 1.b4 e5 2.c3 c5).

3.a3 d5 (--> 1.b4 e5 2.a3 d5 3.c3 c5).

2.bc5 Na6

3.d4 Nb4 4.Bd2 Qa5?? (better 4...Nc6 5.d5 Ne5+–) 5.a3+– Nc2 6.Qc2 Qd2 (6...Qc7+–) 7.Nd2 1–0. GuestKHNH – huhuhihihiiii, freechess.org, 2017.

3.d4 Nc5? 4.dc5+– Qc7 5.Bb2 Qc5 6.Nc3 d6 7.Rb1 Qc7 8.e3 Nf6 9.Nf3 e5 10.Be2 Be6 11.0–0 Be7 12.e4 0–0 13.Re1 a6 14.a3 b5 15.Bd3 Rac8 16.Qc1 d5 17.ed5 Bd5 18.Nd5 Nd5 19.Qd2 b4 20.ab4 Nb4? 21.Be4 Nc2 22.Bc2 Qc2 23.Qc2 Rc2 24.Rec1 Rb2 25.Rb2 Ba3 26.Rbb1 Bc1 27.Rc1 Rd8? 28.h3 g6? 29.Ne1 Rd2 30.g3 Rd1?? 31.Rd1+– Kg7 32.Nc2 Kf6 33.Ne3 e4 34.Kg2 h5 35.h4 g5 36.hg5 Kg5 37.Rd5 f5 38.Rf5 (38.Rf5 Kg6 39.Ra5+–) 1–0. Fournier,Frederic (1755) – Garryk85 (1695), Active blind, 2011.

3.d4 d5 4.cd6 ed6 5.e3 Nf6 6.Nf3 Be7 7.Be2 0–0 8.0–0 d5 9.Nbd2 Bf5 10.c4 Nb4 11.Bb2 dc4 12.Bc4 a6 13.a3 Nd3 14.Bd3 Bd3 15.Re1 Rc8 16.Ne5 Bf5 (16...Bc2 17.Qf3 Qb6 18.Ndc4+=) 17.Ndf3 (better 17.e4!? Bd7 18.d5+–) 17...Ne4 18.Rc1 f6?? (18...Qd5 19.Qa4+=) 19.Nd3?? (better 19.Qb3 Kh8 20.Nf7 Rf7 21.Qf7+–) 19...Qd5 20.Rb1 Bd7 (20...Bd6 21.Qe2=) 21.Nf4 Qf7 22.Qd3 White prepares the advance d5 22...Nd6 23.d5 Nc4 Attacks the isolani on a3 24.Bd4 Bd6 (24...Rc7 25.Bb6 Rcc8 26.Nd4+=) 25.Rb7+– Na3? (better 25...Bf4!? 26.ef4 Qd5+–) 26.Ne6! Rfe8 (26...Be6 A pinning theme 27.Rf7) 27.Nc5?? (better 27.Qa6 Nc4 28.e4+–) 27...Bc5+– 28.Bc5 Rc5 29.Qa3 Rd5 30.Qa6 Qe6 31.Qe6 Be6 32.Rc1 Bg4 (32...Rc8 33.Rc8 Bc8 34.Rb1+–) 33.Nd4 h5 34.h3 White gets in control 34...Be6 (better 34...Bd7!?+–) 35.Rcc7 g5?? (35...Rg5 36.f4 (36.Ne6?! Re6 37.Kh2 Rg6+–) 36...Rg3 37.Kf2+– (37.Ne6?! Re6 38.Kf2 h4+–)) 36.Rg7 (36.Ne6 Re7 37.Re7 Rd1 38.Kh2 Rd8 39.Rg7 Kh8 40.Rh7 Kg8 41.Rbg7) 36...Kf8+– 37.Rh7 Do you see the mate threat? 37...Bg8 38.Rh5 Rc8? (better 38...Re7 39.Rb8 Re8 40.Re8 Ke8+–) 39.Rh6 Rd6 40.Nf5 Re6 (40...Rdc6 41.Rd7 R6c7 42.Rf6 Ke8 43.Rd4+–) 41.Kh2 (41.Rh8 Rc1 42.Kh2 Rc3 43.Rg7 Rce3 44.Rhg8) 41...Rd8 (41...Rec6 42.Rd7 R6c7 43.Rf6 Ke8 44.Rd4+–) 42.f3 (42.Rh8 Rd1 43.Rg7 Rh1 44.Kh1 Re3 45.Rhg8) 42...Rde8 (42...Red6 43.Nd6 Rd6 44.f4+–) 43.e4 (better 43.Rh8 R8e7 44.Ne7 Re7 45.Rg8 Kg8 46.Re7+–) 43...Rd8 (43...R8e7 44.Ne7 Re7 45.Rf6 Kg7 46.Re7 Kf6 47.Rc7+–) 44.Rg6 (44.Rh8 Rdd6 45.Rg7 Re4 46.Rhg8) 44...Rde8 (44...Bf7 45.Rg7 Be8 46.Rh7+–) 45.Ng7 (45.Nh6 Re4 46.Rg8) 45...Bf7+– 46.Ne6 Re6 47.Rh6 (better 47.Rb8!? Be8 48.h4 gh4+–) 47...Kg7 48.Rh7 (48.Rh5! Kg8 49.Rb8 Kg7+–) 48...Kh7 49.Rf7 Kg6 50.Rb7 Re5 51.Rb6 Ra5 52.Rb4 Rc5 53.Rd4 Rc4?? (53...Kf7 54.Rd8+–) 54.Rd5 (better 54.Rc4!? g4+–) 54...Rd4?? (54...Kf7 55.Kg3+–) 55.Rf5 (55.Rd4 Kf7+–) 55...Rd5?? (55...Rd2+–) 56.Rd5 f5 (56...g4+–) 57.Rf5 g4 58.hg4 Kh6 59.Kg3 (59.e5 Kg7 60.e6 Kh7 61.e7 Kg7 62.e8Q Kh6 63.Qe6 Kg7 64.Rf7 Kh8 65.Qe8) 59...Kg6 60.Kf4 Kh6 (60...Kh7 61.e5 Kg7 62.e6 Kg6 63.e7 Kg7 64.g5 Kh7 65.Rf7 Kg6 66.e8Q Kh5 67.Rh7) 61.Ke5 Kh7 (61...Kg6 62.Ke6 Kg7 63.Rg5 Kh6 64.f4 Kh7 65.Kf7 Kh6 66.Rh5) 62.Ke6 Kg7 63.Ke7 (63.Rg5 Kh6 64.f4 Kh7 65.Kf7 Kh6 66.Rh5) 63...Kg6 64.g3 (64.f4 Kg7 65.Rg5 Kh8 66.Kf7 Kh7 67.Rh5) 64...Kh6 (64...Kg7 65.Rg5 Kh6 66.Kf6 Kh7 67.Kf7 Kh6 68.Rh5) 65.Rg5! Kh7 (65...Kg5 66.e5) 66.f4 (66.Kf7 Kh6 67.Rh5) 66...Kh6 (66...Kh8 67.Kf7 Kh7 68.Rh5) 67.Kf6 (67.Kf7 Kh7 68.Rh5) 67...Kh7 68.Kf7 Kh6 69.Rf5 (69.Rh5) 69...Kh7 70.Rh5 1–0. BeepBeepImAJeep (2745) – dani29 (2740), lichess.org, 2020.

3.d4 e5 4.e3 Nf6 5.c3 (5.Ba6 Qa5 6.Nd2 ba6 7.de5 Ne4+–) 5...d6 6.cd6 Bd6 7.Nf3 (7.de5 Be5 8.Qd8 Kd8+–) 7...e4 8.Nfd2 0–0 9.Be2 Nd5? (9...Rb8 10.Ba3+=) 10.c4 (10.Ne4 Bc7+–) 10...Ne7 (10...Nf6!?+–) 11.Nc3 (11.Ne4 Bc7+–) 11...Ng6 (11...f5!? 12.c5 Bc7 13.Qb3 Kh8 14.Rb1+–) 12.Nce4 Bc7 13.0–0 f5 14.Nc3 f4 15.Nf3 Nb4 (15...fe3 16.fe3 Be6 17.Qb3+–) 16.a3 Nc6 17.Nd5 Nce7 18.Nc7 Qc7 19.Bb2 (19.e4 Be6 20.d5 Rad8+–) 19...fe3 20.fe3 Nf5 21.Qd3 Re8 22.e4 (better 22.Bc1!?+–) 22...Nf4+– 23.Qc2?? (better 23.Qd2 Re4 24.Bd3 Nd3 25.Qd3+–) 23...Ne3= 24.Qd2 Nf1 25.Rf1 Bg4 (25...Re4!? 26.Bd1 Qe7=) 26.Bd3+– Rad8 27.Ne5?? (better 27.c5+–) 27...Nd3=+ 28.Nd3 Re4 29.Nf2 Rf4 (29...Re2 30.Qb4 Bf5 31.Bc3–/+) 30.d5?? (better 30.g3 Rf2 31.Rf2 (31.Qf2?! Qc4 32.Qg2 b5=+) 31...Qc4 32.Qg5 Rd4 33.h3+–) 30...Rdf8 Black gets the initiative 31.Qc3? (31.Bd4!?–/+) 31...Qf7 (31...Be2 32.Qe5 Qe5 33.Be5 Bf1 34.Bf4 Bc4 35.Bd6–+) 32.Qg3? (better 32.Qe1–+) 32...Be2 (32...Rc4?! 33.d6 Be6 34.Be5–+) 33.Bc1 Bf1 (33...Rf5!? 34.Be3 Bf1 35.Kf1–+) 34.Bf4 Qf4 35.Qf4 Rf4 36.Kf1 Rc4 37.Ke2 Rd4 38.Ke3 (38.Nd1 Rd5 39.Ne3–+) 38...Rd5 39.Ne4 Ra5 40.Ng5 (40.Nd6 Ra3 41.Ke2 Rb3–+) 40...Ra3 (better 40...Rg5 41.g3–+) 41.Kf4 Ra2 42.Ne6 Rg2 43.h4 a5 44.Nc5 b5 45.Nd7 (45.Kf3 Rc2 46.Ne4–+) 45...a4 46.Ne5 a3 47.Nc6 a2 48.Ne7 Kf7 49.Nd5 a1Q 50.Ne3 Qd4 51.Kf3 Rg3 (51...Rh2 52.h5 Rh3 53.Ke2 Re3 54.Kf1 Qd2 55.Kg1 Re1) 52.Kg3–+ Qe3 53.Kg4 Qf2 (53...g6 54.h5 g5 55.h6 Kf6 56.Kh5 Qf3) 54.h5 (54.Kh3 b4 55.h5 b3 56.h6 gh6 57.Kg4 b2 58.Kh5 b1Q 59.Kh6 Qg6) 54...h6 (54...g6 55.h6 Kf6 56.Kh3 g5 57.Kg4 Qg2 58.Kh5 Qf3) 55.Kh3 Qg1 (55...b4 56.Kg4 b3 57.Kh3 b2 58.Kg4 b1Q 59.Kh3 Qbf5) 56.Kh4 Kf6 57.Kh3 Kf5 58.Kh4 Qg4 0–1. BeepBeepImAJeep (2715) – Alaxan (2490), lichess.org, 2020.

2.bc5 Qb6??

3.cb6 Na6 4.Nf3 Nb4 5.a3 Nc2 6.Qc2 ab6 7.e3 Ra3 8.Ba3 (8.Qc8#) 8...h5 9.Qc8# 1–0. ferminkatcho (1815) – ezust (1910), kurnik, 2012.

3.cb6 d5 4.ba7 Kd7 5.Bb2 Kc6 6.e3 Kc5 7.Bd4 Kb4 8.Qf3 Bg4 9.Qd5 Nc6 10.Qc4 Ka5 11.Qc5 b5 12.Qb5 1–0. beatmeeasy (1725) – severniyolen, lichess.org, 2016.

3.cb6 Nf6 +–.

3.d4?? g5?? (3...Qe6 4.Nf3+/–) 4.Qd3 f6?? 5.Nd2 Bg7?? 6.Qf3 Nh6?? 7.Qc6 e5 8.Ndf3 Ng4 9.Qc7 Qb1 10.d5 (Better is 10.Rb1 Na6 11.Qa5 ed4 12.Nd4+–) ½–½. Kalod,Radek (2455) – Tupy,Martin (2215), GP Mladi Open Litomysl, 1997.

2.bc5 Qc7

3.d4 b6 4.cb6 ab6.. MT – guest1928, ICC, 2004.

3.d4 d6 4.cd6+/– Qd6 5.Bb2 Qb4 6.Bc3 Qd6 7.Nf3 (7.e4 Qg6 8.Qd3 Nf6+/–) 7...Nf6 8.Qd3 g6 (8...Qd5 9.Ne5+/–) 9.e4 Qb6 10.Be2 Bg7 11.0–0 0–0 12.Nbd2 Qd8 13.e5 (13.Rab1 b6 14.Qe3 Qc7+–) 13...Nh5 (13...Nd5 14.Nc4+/–) 14.g3 (14.Qe3 Qc7+–) 14...Nc6 (14...Bf5 15.Ne4+/–) 15.Ne4 (15.d5 Nb8+–) 15...f5 (15...Qd5 16.Nfg5 Bf5 17.Bh5 gh5 18.Qf3+/–) 16.Nc5 b6 17.Qc4 Kh8 18.Ne6 Be6 19.Qe6 (19.Qc6?! Qc8 20.Qc8 Rac8+=) 19...f4? (19...Qc7 20.Bd2+–) 20.Qc6?? (20.g4 Qc8 21.d5 Qe6 22.de6 g5+–) 20...Rc8 21.Qa4 Rc3 22.Nd2 fg3 23.fg3 e6 24.Ne4+– Re3 25.Bh5?? Re4= 26.Rf8 Bf8 27.Bf3 Rd4 28.Qa7= Rd2 29.Be4?? Bc5 30.Kh1–+ Rd1 31.Rd1 Qd1 32.Kg2 Qe2 33.Kh3 Qe4 34.Qb8 Kg7 35.Qc7 Kh6 36.Qd8 Qf5 37.Kg2 Qe5 38.Qh4 Kg7 (38...Kg7 39.Qc4 Bd4–+) 0–1. Fournier,Frederic – Vinsot,Serge, Match Active, 1999.

3.d4 e5 4.e3 b6 (4...d6 5.Bb2+=) 5.cb6+– ab6 6.Nf3 Ba6? (better 6...e4!? 7.Nfd2 Nf6+–) 7.Ba6+– Na6 8.0–0 (better 8.Ne5!? Nb4 9.c3+–) 8...e4+– 9.Nfd2 d5 10.c4 Bb4 (10...Nb4 11.Ba3 dc4 12.Ne4+–) 11.Bb2 (11.Qg4 g6 12.cd5 f5+–) 11...Bd2 (11...f5 12.cd5 Nf6 13.f3+–) 12.Nd2+– (12.Qd2?! Qc4 (worse 12...dc4 13.d5 Nf6 14.Bf6 gf6 15.Nc3+–) 13.Rc1 Qb5+=) 12...dc4 (12...Nf6 13.cd5 0–0 14.f3 ef3 15.Qf3+–) 13.Rc1 b5 14.a4 Rb8 15.ab5 Rb5 16.Rc4 (16.Nc4 Qd7+–) 16...Qd7 (16...Qb7 17.Qa4 f5 18.Rc8 Qc8 19.Qb5 Qd7 20.Qa6+–) 17.Ba3 Ne7 18.Ne4 0–0 (18...Rb6+–) 19.Qa4 Rb6 (19...Nb8 20.Be7 Qe7 21.Qb5 Qe4+–) 20.Qd7 (20.Qd7 Rfb8 21.Be7+–) 1–0. BeepBeepImAJeep (2600) – michal_kroo (2100), lichess.org, 2017.

2.bc5 f5

3.Bb2 Nf6 4.e3 e6 5.d4 b6 6.cb6 ab6 7.c4 Bb7 8.Nf3 Bb4 9.Bc3 Bd6 10.Be2 Ne4 11.0–0 0–0 12.Qc2 Rf6 13.a4 (13.h3 Rg6 14.Nbd2 Qc7+–) 13...Rh6 (better 13...Nc3!? 14.Qc3 Bf3 15.Bf3 Bh2 16.Kh2 Rh6 17.Bh5 Qh4 18.Kg1 Qh5–/+) 14.g3 Ng5 15.Ng5 Qg5 Do you see the mate threat? 16.Qd1?? (better 16.f4 Qg6 17.Qb2+–) 16...Rh2!! 17.Kh2 Decoy to h2 (17.d5 Bg3! 18.Bg4–+) 17…Qh4 A classical mating theme (17...Qh4 18.Kg1 Qh1) 0–1. RichardSommer (2140) – Genialchess (2150), lichess.org, 2020.

3.d4 e5 +/–.

3.d4 Nf6 4.c3 e6 5.e3 Be7 6.Nf3 0–0 7.Bd3 Nc6 8.0–0 d5 (8...b6 9.cb6 ab6 10.a4+/–) 9.Nbd2 (9.cd6 Bd6 10.Ba3 b6+/–) 9...h6 (9...b6 10.cb6 ab6 11.a4+=) 10.Qc2 (10.c4 b6+/–) 10...Kh8 (10...b6 11.cb6 ab6 12.Qb2+/–) 11.Bb2 g5 (11...b6 12.cb6 ab6+/–) 12.Rfe1 (12.a3 g4 13.Ne1 b6+/–) 12...Qe8? (better is 12...g4!? 13.Ne5 Ne5 14.de5 Nd7+=) 13.c4+– Rg8 (13...Bd7 14.a3+–) 14.cd5 ed5 (14...Nb4 15.Qb3 Nd3 16.Qd3 ed5 17.Ne5+–) 15.Ne5 (15.Bf5 Bf5 16.Qf5 Qc8+–) 15...g4 (15...Nb4 16.Qb3 Nd3 17.Qd3+–) 16.Nc6 (16.Bf5 Bf5 17.Qf5 Rg5+–) 16...bc6 17.Nf3?? (better is 17.Bf5 Bf5 18.Qf5+–) 17…gf3–+ (17...gf3 18.g3 Qh5–+) 0–1. Fournier,Frederic (1995) – ALEXEIFEDOROV (1995), Active Blind, 2008.

3.e3 Qa5 4.Nf3 (4.Ba3 Nc6+/–) 4...Nc6 (4...Qc5 5.Be2+=) 5.c3 e5 (5...Qc5 6.d4 Qa5 7.d5+=) 6.Bc4 (6.d4 e4 7.Nfd2 Nf6+/–) 6...Bc5 (6...e4 7.Nd4+=) 7.0–0 (7.d4 Bd6+/–) 7...Nf6 (7...Be7 8.Qb3 Nf6 9.Ba3=) 8.d4+= d5 (8...ed4 9.cd4 d5 10.Bd2+=) 9.Ne5 (9.de5 Ne5 10.Bd5 Bd6 11.Bb7 Bb7 12.Qd6 Bf3 13.Qe6 Kd8 14.gf3 Nf3 15.Kg2 Qa4+–) 9...Bd6 (9...dc4 10.Nc6 bc6 11.dc5 Qc5 12.Ba3+=) 10.Nc6 bc6 11.Bd3 Qc7 (11...Ba6 12.a4+= (12.Bf5?! Bf1 13.Qf1 Rb8=)) 12.f4 (12.h3 Rb8+/–) 12...0–0+= 13.Qc2 (13.c4 Ne4+=) 13...Ng4 (13...Ne4 14.c4+=) 14.c4+/– Qe7 15.Rf3 Be6 (15...Qe6 16.c5 Be7 17.Nc3+/–) 16.c5 Bc7 17.h3 (better is 17.Nd2+/–) 17...Qh4? (better is 17...Nf6+=) 18.hg4+– fg4 19.g3 Qh3 20.Rf1 (20.Bf1!? Qh6 21.Rf2 Bf5+–) 20...Qg3 21.Qg2 Qh4 22.Nc3 (22.f5 Bd7+–) 22...h5 23.Qh2 g5 24.Ne2 Rae8 25.Ng3 Qh2+= 26.Kh2 gf4 27.Nh5 f3 28.Kg1 g3 29.Nf4 Bg4 30.Bg6?? Re7?? 31.Bh5? Bh5 32.Nh5 Rh7?? 33.Nf4+/– f2 34.Kg2 Bf4? 35.ef4+– Rg7 ½–½. Rehurek,Karl – Olej,Emil, corr tt CSSR, 1964.

2.e3 cb4=+

3.a3 ba3 4.Ba3 d6 5.Nf3 (5.Nc3 Nf6=) 5...e5 (5...Nf6 6.Nc3=) 6.Be2 (6.Nc3 Nf6=) 6...Nf6 (6...Be7 7.d4=) 7.0–0 (7.Nc3 Be7=+) 7...Be7 8.h3 (8.Nc3 0–0=) 8...0–0 (8...Nc6 9.Nc3=+) 9.c4 Nc6 10.Nc3 d5 (10...Bf5 11.d4=+) 11.cd5 (better 11.Be7!? Ne7 12.Ne5+–) 11...Nd5= 12.Nd5 (12.Be7 Nde7 13.Qb1 Rb8=) 12...Qd5 (12...Ba3 13.Ra3 Qd5 14.d4 ed4 15.Nd4 Nd4 16.ed4=+) 13.d4 (13.Be7 Ne7 14.d4 ed4 15.Nd4 Rd8=) 13...ed4 (13...Ba3 14.Ra3 ed4 15.Nd4 Nd4 16.ed4=+) 14.Nd4 (14.Be7 Ne7 15.Nd4 Rd8=) 14...Nd4 (14...Ba3 15.Nc6 Qc6 16.Ra3=) 15.Be7 Ne2 (15...Re8 16.ed4 Re7 17.Bf3=) 16.Qe2= Re8 17.Rfd1 Qe6 18.Bh4 (18.Bc5 b6 19.Bd4 Qg6=+) 18...b6 (18...Bd7 19.Rd4=+) 19.Rd4 (19.Bg3 Bb7=) 19...a6 (19...Bb7 20.Qb2=+) 20.Rd8 (20.Qf3!? Bd7 21.Qf4=) 20...Rd8–/+ 21.Bd8 Bb7 (21...Bd7 22.Bc7 Rc8 23.Bf4–/+) 22.Rd1 h6 (22...b5–/+) 23.Qb2? (23.Qg4!?=+) 23...b5 (23...Qg6 24.f4 b5 25.Ba5–+) 24.Ba5 (24.Rd4–/+) 24...Qe7 (better 24...Qg6!? 25.f4 Re8–+) 25.Rd4 (25.Qd4 Re8–/+) 25...Rc8 (25...Re8 26.Qd2–/+) 26.Rg4 (26.Qd2 Qg5 27.e4 Rc1 28.Kh2 Qe5 29.g3 Qf6=+) 26...g6 (better 26...f6–/+) 27.Qb3? (better 27.Bb4 Qe6 28.Rd4–/+) 27...Rc1–+ 28.Kh2 Qe5 29.f4? (29.Rg3–+) 29...Qe4 30.Qb2 (30.Qb4 Qe3 31.Qd2 Rh1 32.Kh1 Qh3 33.Kg1 Qg4 34.Bc3–+) 30...Rg1 (better 30...Rc2 31.Qc2 Qc2–+) 31.Kg1+– Qe3 32.Qf2 (32.Qf2 Qa3 33.Be1+–) 1–0. Colarina,Floram – Kehayov,Yulian, FICGS, 2010.

3.Bb2 d5 =+.

3.Bb2 Nf6 =+.

3.c3 e5 4.cb4 (4.Qb3 bc3 5.Nc3 Nc6–/+) 4...Bb4–/+ 5.Qg4 Bf8 6.Nc3 d6 (6...Nf6 7.Qg3 Nc6 8.Bb2–/+) 7.Bb5 Nc6 8.Qf3 Bd7 9.Bc4 Nf6 10.h3 (10.Ne4 Be7–/+) 10...Rc8 11.Bb3 (11.Rb1 Na5 12.Be2 Bc6–/+) 11...Be7 (11...Qe7 12.Nd5 Nd5 13.Bd5–+) 12.Nge2–/+ 0–0 13.Ng3 (13.e4 Be6–/+) 13...Na5 14.Nf5 Nb3 (14...Be6 15.Bc2–+) 15.ab3 Bc6 (better is 15...Bf5!? 16.Qf5 Qb6–/+) 16.Qg3=+ Nh5 (16...Ne8 17.Ra7 Bf6 18.0–0=) 17.Qg4= g6 18.Ba3 (better is 18.Ra7!? Nf6 19.Qg5=) 18...Kh8 19.Ne7 Qe7 20.Qb4 Rfd8 21.Ne4 (better is 21.0–0–/+) 21...a5!–+ 22.Qc4 (22.Qa5 Be4) 22...f5 (better is 22...b5!? 23.Qd3 b4–+) 23.Nd6–/+ Rd6 24.Qc5 (better is 24.Bd6!? Qd6 25.Ra5–+) 24...Rcd8–+ 25.Qa5 Bg2 26.Rg1 Bf3 (26...Bh3 27.Bd6 Rd6 28.Qc3–+) 27.Rc1 (27.Qc3 Nf6–+) 27...b6 28.Qc3 Nf6 29.Bb2?? (29.Bd6 Qd6 30.Rc2–+) 29...Rd2 30.Qd2 Rd2 31.Kd2 Qd6 (32.Kc3 Ne4 33.Kc2 Nf2–+) 0–1. Zylla,Johannes – Olzem, BSF–Pokal, 1991.

3.d4 d5 4.Bb5 (4.c4 bc3 5.Nc3 Nf6–/+) 4...Bd7–/+ 5.Qd3 (5.Bd3 Nf6–/+) 5...Nf6 6.Nd2 (6.Nf3 e6–/+) 6...e6 7.c4 (7.Rb1 Qa5 8.Bd7 Nbd7–+) 7...bc3!–+ 8.Bd7 (8.Qc3 Bb5 Combination) 8...Qd7 9.Qc3 Nc6 10.Ngf3 (10.Ba3 Be7–/+) 10...Rc8 11.Nb3?? (better is 11.Qb3–+) 11...Bb4 12.Qb4 Nb4 13.0–0 0–0 14.Nc5 Qc7 15.Bd2 Nc6 16.Rfc1 Qe7 17.a4 a5 18.Nb3 b6 19.Ne5 Ne5 20.de5 Ne4 21.f3 Nd2 22.Nd2 Rc1 23.Rc1 Qa3 (23...Qa3 24.Re1 Qc3–+) 0–1. gtate (1740) – ambarish (1720), net–chess.com, 2001. (=1.e3 c5 2.b4)

2.e3 e6

3.bc5= Bc5 4.d4 Bb6 (4...Be7 5.e4=) 5.Bd3 d5 6.Nf3 Nc6 7.0–0 Nf6 8.Ba3 Bd7 9.Nc3 Ne7 10.Ne5 0–0 11.Nd7 (11.Rb1 Rc8 12.Nb5 Bb5 13.Rb5 Re8+=) 11...Qd7 12.Bb5 Qc7 13.Ne2 Rfc8 14.c3 Nf5 15.Bb2 Nd6 16.Bd3 Nc4 17.Bc4 Qc4–/+ 18.f3 Rc7 19.Re1 Rac8 20.a4 Ba5 21.Qd2 Qc6 22.Qd3 Nd7 23.Qc2 Nb6 24.Ra2 Nc4 25.Bc1 Nd6 26.Rd1 Bc3–+ 27.Nc3 Qc3 28.Qc3 Rc3 29.Bd2 Rc2 30.Rc2–/+ Rc2 31.Rf1?? Nc4 32.Bc1 Ra2 (33.e4 Ra4–+) 0–1. Mennie – Ziolkowski, corr 3GMM–47, 1996.

3.bc5 Bc5 4.d4 Be7 5.Bd3 d5 6.f4 f5 (6...Nc6 7.Nf3=) 7.Nf3 Nc6 8.0–0 a6 9.Nbd2 Nf6 10.c3 0–0 11.Rb1 b5 12.Ne5 Ne5 13.fe5 Ne4 14.Ne4 fe4 15.Rf8 Qf8 16.Be2 Qf7 (16...Bh4 17.g3 Bg5 18.a4=) 17.a4= ba4 18.Qa4 Bg5?? (better is 18...Bh4 19.g3 Bd7=) 19.Qc6+– Qa7 (19...Bb7 20.Rb7 Qe8 21.Qe8 Re8 22.Ba6 Ra8+–) 20.Ba3 (20.Qe8) 20...Bd7+= 21.Qd6 Be3 22.Kh1 Bd2?? 23.Bg4 Bc3? 24.Be6 Be6+/– 25.Qe6 Kh8 26.Qd5 e3 27.Bc5 Qb8= 28.Rb8 Rb8 29.h3?? e2–+ 30.Qd6 e1Q 31.Kh2 Rg8 32.e6 Re8 33.d5 Be5 34.Qe5 Qe5 (34...Qe5 35.Kh1 Qd5–+) 0–1. poulmorphy (1705) – gigibalamuc (1725), kurnik, 2011. (=1.e3 c5 2.b4)

2.a3 cb4

3.Bb2 ba3 4.Na3 e6 5.e3 Nf6 6.Nf3 d5 7.Rg1 (7.Bf6 gf6 8.c4 a6=+) 7...Nc6–/+ 8.g4 Ne4 9.Nb5 a6 10.Ne5 (10.d3 Nc5 11.Nbd4 Qb6–/+) 10...Bd7 (10...Bb4!? 11.Nf3 e5–+) 11.Nd7–/+ Qd7 (11...ab5?! 12.Nf8 Kf8 13.Bb5=) 12.Qf3 (12.f3 Nd6–/+) 12...Rc8 13.Nd4? (better 13.Nc3–/+) 13...Nd4–+ 14.Bd4 Rc2 15.Bd3 Rc8 (15...Rd2 16.Be4 de4 17.Qe4–+) 16.g5 (16.Be4 de4 17.Qe4 a5–/+) 16...Qd6 (16...Nc5 17.Bc2–+) 17.h4 (17.Be4 de4 18.Qe4 b5–/+) 17...Qb4 (better 17...Nc5 18.Bc2 b5–+) 18.Rd1?? (18.Be4 de4 19.Qe4 Bc5–/+) 18...Qb3 (better 18...Nd2 19.Rd2 Rc1 20.Qd1 Rd1 21.Kd1 e5 22.Be5 Qh4–+) 19.Ke2 (19.Be4 de4 20.Qe4 Qd5 21.Qd5 ed5=+) 19...Nc5 20.Bb1 (better 20.Bc5!? Bc5 21.Rb1–/+) 20...Qb5–+ 21.d3 Nb3 22.Be5 Qa4 (22...Ba3 23.Qh1 0–0 24.g6 fg6 25.f4–+) 23.Kf1 (better 23.h5–+) 23...Qh4 24.Rg4 (24.Ke2 Qb4–+) 24...Qh5 25.Kg2 h6 (better 25...f5 26.Rg3 Qf3 27.Kf3 Kd7–+) 26.Rh1–/+ Qg6 (26...Qh1 27.Kh1 Rc1 28.Rg1 Nd2=+) 27.d4? (better 27.gh6 Qh7 28.Bg7–/+) 27...Rc2?? (better 27...Nd2 28.Bg6 Nf3 29.Bf7 Kf7 30.Kf3 b5–+) 28.gh6+– Nd2 29.Rg6 (29.Rg6 Nf3 30.Bg7+–) 1–0. TwelveTeen (2635) – ChrolloL (2665), Time forfeit, 2018.

3.Bb2 e6 4.e3 (4.ab4 Qb6= (4...Bb4?? 5.Bg7 d5 6.Bh8+–)) 4...Nf6=+ 5.Nf3 ba3 6.Na3 Nc6 7.Bd3 Be7 8.Rg1 (8.Nb5 d6–/+) 8...0–0–/+ 9.g4 Nd5 (9...d5 10.Nb5–/+) 10.g5 Ndb4 11.Be2 d5 12.h4 e5 (12...a5!?–/+) 13.Ne5=+ Ne5 14.Be5 Nc6 15.Bb2 d4 16.Nb5 Bc5 17.Bd3 a6 (17...f5 18.Bc4 Kh8 19.Qh5=) 18.Qh5 (18.Bh7 Kh7 19.Qh5 Kg8 20.g6 fg6 21.Qc5 Qh4 22.Rf1–+) 18...g6=+ 19.Qh6?? (better 19.Qf3=+) 19...Re8–+ 20.h5 Bf8 21.hg6 Bh6 22.gh7 Kh8 23.gh6 ab5?? (23...f5 24.Rg7 A) 24...ab5 25.Ra8 Qd5 26.Rg8 Rg8 27.hg8R Qg8 28.Bf5 Bf5 29.Rg8 (29.Bd4? Nd4 30.Rg8 Kg8 31.ed4 Bc2–+) 29...Kg8 30.d3=+ (worse 30.ed4 Bc2 31.d5 Nd8–/+); B) 24...Qb6–+) 24.Ra8=+ Qf6?? (better 24...b4=+) 25.Rg8!+– Rg8 26.hg8Q (26.hg8B?! Bf5 27.Bb5 Ne5 28.Bf7 Kh7+–) 26...Kg8 27.Rc8 (27.Rc8 Nd8 28.h7 Kg7 29.Bd4 Qd4 30.ed4+–) 1–0. TwelveTeen (2670) – SaraciNderim (2580), lichess.org, 2018.

3.ab4 Qb6

4.Ba3 Nc6 5.c3 Nf6 6.Nf3 d6 7.e3 e5 8.Bd3?? (better is 8.b5 Nd8 9.Bb4=) 8...e4–+ 9.Be4 Ne4 10.0–0 Be7 11.Qc2 Nf6 12.d4 d5 13.Qa4 Bd7 (13...a6!? 14.Nbd2–+) 14.b5 Nb8 15.Be7 Bb5 16.Qa3 Bf1 (17.Bf6 Qf6 18.Kf1 Qa6 19.Ke1 Qa3 20.Na3 Ke7–/+) 0–1. rookie2 – Darlanio, ChessWorld.net, 2004.

4.Ra4 d5 5.Nc3 (5.e3 e5=) 5...e6 Consolidates d5 (5...d4!? 6.Na2 Bd7+=) 6.e3 Nf6 7.Nf3 Bd6 8.Nb5 Be7 9.Bb2 Nc6 10.Ne5 0–0 11.Qb1 a6 12.Be2 (12.Nc6!? Qc6 13.Ra2+=) 12...Ne5–/+ 13.Be5 Bd7 14.Bd4 Qd8 15.Nc3 Ba4 16.Na4 Nd7 17.0–0 b5 Black threatens to win material: b5xa4 (17...Qc7 18.Qb2 Bf6 19.Re1–/+) 18.Nb2 (18.Nc5 Bc5 19.Bc5 Nc5 20.bc5 d4–/+) 18...Bb4 19.c4? (better is 19.Nd3!? Bd2 20.c3–+) 19...bc4 20.Nc4 Rb8 (20...dc4?! is much worse 21.Qb4 e5 22.Ba1+=) 21.Ne5 (21.Nb2–+) 21...Ne5 22.Be5 Bd6 (22...Bd6 23.Qa1 Be5 24.Qe5 Qb6–+) 0–1. Bettman,Jan – Wirschell,Taco (2335), Soest op, 2000. (=1.a3 c5 2.b4 cb4 3.ab4)

4.Nc3 Qb4!? 5.e3 Qb6 =.

4.Nc3 e6 5.b5= d5 6.e3 Nf6 7.Nf3 Bd6 8.Bb2 Nbd7 9.Be2 0–0 10.0–0 e5 11.Ba3 Ba3 12.Ra3 Re8 13.Qa1 d4 (13...Qc5 14.Ra4+=) 14.Na4+= Qc7 15.ed4 e4 16.Ne1 Nd5 17.g3 Nf8 18.c4 Nf6 19.Ng2 (19.Nc2 Bh3 20.Rb1 Re7+–) 19...Bh3 20.Re1 Ng6? (20...Bg2 21.Kg2 b6 22.d5+/–) 21.Nc5 (21.Ne3 Qb8+–) 21...b6 (21...Bg2!? 22.Kg2 b6+/–) 22.Na6+– Qe7 (22...Qd7 23.Ne3+–) 23.Ne3 Rad8 (23...Bc8 24.c5+–) 24.Rb1 (better is 24.c5+–) 24...Rd4+/– 25.Ra2 (better is 25.Qd4!? Qa3 26.Nc7+/–) 25...Rd7= 26.Nb4 Qc5 27.Nbd5 Nd5 28.Nd5 (28.cd5 Ra8+=) 28...Ne5 29.Ra7 Rd5 (29...Ra7!? 30.Qa7 Nc4=) 30.cd5+/– e3 31.d4?? (better is 31.de3 Qd5 32.f3 Nf3 33.Bf3 Qf3 34.Qb2+/–) 31...Qd5–+ 32.f3 Nf3 33.Bf3 Qf3 34.Rb2 e2 35.Re2 Qe2 36.Ra2 Qe3 37.Kh1 Qe1 (37...Qe1 38.Qe1 Re1) 0–1. Frank,Detlev – Bokelbrink,Uwe (2255), Pinneberg–ch, 2002. (=1.a3 c5 2.b4 cb4 3.ab4 Qb6)

3.ab4 Nc6

4.b5 Ne5 5.d4 Ng6 6.h4 h5 7.f4 (7.e4!?+=) 7...e6 8.d5 Nf6 9.de6 de6 10.Qd8 Kd8 11.e3 Bd7 12.Bb2 (12.Nf3!?=) 12...Bc5=+ 13.Kf2 (13.Bf6!? gf6 14.Kd2=+) 13...Ng4–/+ 14.Kf3 Ne3 15.Na3? (15.Bd3 Nf5 16.Bf5 ef5 17.Bg7 Re8 (17...Bb5 18.Bh8 Nh8 19.Ra5 Bc6 20.Kg3=+) 18.Bf6 Kc8–+) 15...f6 (better 15...Ba3 16.Bg7 Nc2–+) 16.Bd3 Ne7 17.Ne2 a6 (17...N7f5–/+) 18.Nc3 (18.Bd4!? Bd4 19.Nd4=+) 18...ab5 19.Nab5 Ra1 20.Ra1 Bc6 21.Ke2 (better 21.Be4 Nc2 22.Rd1 Ke8 23.Bc6 bc6 24.Nc7 Kf7 25.Ne4–/+) 21...Ng2 (worse 21...Bg2 22.Na4 N3d5 23.Nc5 Nf4 24.Ke3 Nd3 25.cd3+–) 22.Ra8 Nc8 23.Na4 (23.Bc1 Nh4 24.Ne4–+) 23...Nf4 24.Kd2 Bb4 (better 24...b6 25.Rc8 Kc8 26.Nc5 bc5 27.Na7 Kc7 28.Ba3 Nd3 29.Kd3–+) 25.c3 Nd3 26.cb4 (26.Nb6 Ke7 27.Nc8 Rc8 28.Rc8 Bb5 29.Rc7 Kd6 30.Rb7 Nb2 31.cb4–+) 26...Bb5 27.Nb6 (27.Bc3 Kc7 28.Nc5 Nc5 29.bc5 Rd8 30.Ke1 Rd5 31.Ba5 Kd7–+) 27...Kc7 (27...Nb2?! 28.Rc8 Ke7 29.Rh8=+) 28.Bd4 (28.Rc8 Rc8 29.Nc8 Nb2–+) 28...Nb4 29.Bf2 (29.Kc3 Nc6 30.Be3 f5–+) 29...Rd8 30.Kc3 Nd5 31.Nd5 Rd5 32.Bg3 e5 33.Ra1 (33.Ra3 g5–+) 33...Kb6 (33...Rd3 34.Kb4 Rg3 35.Kb5 Nd6 36.Kb4 Rg4 37.Kc3 Rh4 38.Kd3–+) 34.Bh2 (34.Bf2 Kc6–+) 34...Nd6 35.Rg1 (35.Bg1 Kc6–+) 35...Ne8 (better 35...Ne4 36.Kb4 Rd4 37.Ka3 Rd3 38.Kb2 Rd2 39.Kb3 Rh2 40.Kb4–+) 36.Kb4 (36.Bg3 Rd3 37.Kc2 e4–+) 36...Rd4 37.Kb3 Rh4 38.Bg3 Rh3 39.Kb4 Nc7 (better 39...e4!? 40.Bb8–+) 40.Bf2 Kc6 41.Rg7 (41.Rc1 Kd6 42.Rc7 Kc7 43.Kb5 Kd6–+) 41...Rf3 (41...Nd5 42.Ka5 Ra3) 42.Bh4 Rf4 (42...Nd5 43.Ka5 Ra3) 43.Ka5 Rh4 (43...Ra4) 44.Rg4 Rg4 (44...hg4 45.Kb4 Rh3 46.Ka5 b6 47.Kb4 Nd5) ½–½. banistyle (2060) – vvchnik161 (2010), lichess.org, 2020. (=1.a3 c5 2.b4 cb4 3.ab4 Nc6)

3.ab4 d5

4.Bb2 Qb6 5.Ra4 Bd7 6.Ra2 Qb4 7.e3 Nc6 8.Qf3 Bg4 9.Qd5?? (better is 9.Qg3–/+) 9...Be6–+ 10.Ra7 (10.Qb5 Ba2 11.Nc3 Be6–+) 10...Bd5 11.Ra8 Nd8 (12.Nc3 Qb2 13.Nd5 Qb1 14.Ke2 Qb5 15.Ke1 Qd5–+) 0–1. rookie2 (1845) – Tihomir Glowatzky (2055), ChessWorld.net, 2003.

3.ab4 d6

3.ab4 e5

4.Bb2 Bb4 5.Be5 Nf6 6.Bb8 Rb8 7.Ra7 +=.

4.Bb2 Nc6 5.b5!? Qb6 6.e3 +=.

4.Bb2 Nc6 5.c3 d5 6.e3 Nf6 7.Bb5 Qb6 8.Bc6 Qc6 9.Ne2 Bd6 10.0–0 0–0 11.d3 Re8 12.Nd2 Bf5 Black intends e4 13.d4 e4 14.Rc1 Rac8 15.c4 Bb4 16.cd5 Qd5 17.Nf4 Qa2 18.Rc8 Rc8 (18...Bc8?! 19.Qc2 Qa5 20.Ra1–/+) 19.Nc4?? (better is 19.Qb1 Qb1 20.Nb1–+) 19...Rc4 20.d5 (20.Ba1–+) 20...Qb2 21.d6 (21.h3 Bd6–+) 21...Rc6 22.d7 Bd7 0–1. alex222 – Caissa, Live Game Caissa's Web, 2004. (=1.a3 c5 2.b4 cb4 3.ab4 e5)

4.Bb2 Nc6 5.Nf3 e4 6.b5 Qb6 =+.

4.b5 d5 5.Bb2 Nd7 6.e3 Ngf6 7.Nf3 White threatens to win material: Nf3xe5 7...Bd6 8.c4 (8.d4 Bb4 9.c3 Bd6+=) 8...b6 (8...e4!? must definitely be considered 9.Bf6 Qf6–/+ (worse is 9...gf6 10.Nd4=)) 9.cd5 Bb7 Black threatens to win material: Bb7xd5 (9...Nd5 10.e4 Nf4 11.g3+=) 10.Bc4 (10.Nc3 Nd5 11.Ne4 Be7+=) 10...Qc7 (10...e4 11.Nd4 Ne5 12.Qc2=) 11.d3+= Secures e4 11...Bb4 (11...Nd5 12.e4 Nf4 13.0–0+=) 12.Nbd2+/– 0–0 (12...e4 13.Nd4 Qe5 14.Rb1 Bd2 15.Qd2 Bd5 16.Ne2+=) 13.0–0 (13.Rc1 h6+/–) 13...Bd2 (13...Bd5 14.Qb3 Qc5 15.d4 Bc4 16.Nc4 (16.dc5?! is much weaker 16...Bb3 17.Nb3 bc5=) 16...ed4 17.Nd4+/–) 14.Nd2 (better is 14.Qd2!? Nd5 15.Rfc1+–) 14...Bd5+/– 15.Rc1 (15.Bd5 Nd5 16.Ne4 Nc5+=) 15...Qb7 (15...Qd6!?+= deserves consideration) 16.e4+/– Bc4 17.Nc4 (17.dc4?! a5=; 17.Rc4?! a6+=) 17...Qb8 (17...a6 18.Be5 Ne5 19.Ne5 ab5 20.Qb3+/–) 18.Ba3 (18.f4 ef4 19.Qf3 a6+/–) 18...Nc5 19.Ne3 (19.f4 ef4 20.d4 Nce4 21.Bf8 Kf8+/–) 19...Qd6 20.Rc3 (20.Bc5 bc5 21.Nf5 Qb6+=) 20...Rac8 21.Nf5 White threatens to win material: Nf5xd6 21...Qd7 22.Qb1 Rfd8 23.Rfc1 g6 24.Ne3 Qd4 25.g4 h5 Black threatens to win material: h5xg4 26.g5 White threatens to win material: g5xf6 26...Ng4 Black threatens to win material: Ng4xe3 27.Bb2?? White lets it slip away 27...Qd7 28.Nd5+/– Kg7? 29.h3 Nf2 30.Kf2 Qh3 31.Rh1 Qg4?? an oversight. But Black was lost anyway. 32.Qd1 Qg5+/– 33.Bc1 Qg4?? further deteriorates the position 34.Qg4+– hg4 35.Bh6 Kh8 36.Bg5 Kg7 37.Bf6 (37.Bf6 Kg8 38.Rh8) 1–0. Frank,Detlev – Runge,Hans M, Pinneberg–ch op, 2001. (=1.a3 c5 2.b4 cb4 3.ab4 e5)

4.Nc3 a6 5.e4 d6 6.Nd5 Be6 7.c4 Nc6 8.Nf3 a5 9.b5 Nb4 10.Nb4 ab4 11.Bb2 Qc8 12.d4 Ra1 13.Qa1 Bc4?? 14.Qa4?? Bf1+= 15.Kf1 Qc4 16.Ke1 ed4? 17.Nd4 Qd3?? 18.Qa8+– Ke7 19.Qb7 Kf6 20.Qc6 Be7?? 21.Qd5 Qb1–+ 22.Kd2 Qh1?? 23.Qf5# 1–0. Gregor123 – Master1, mySchach.de, 2004.

4.Nc3 d5 5.Ba3 =+.

4.Ba3 d5

5.e3 a6

6.Nf3 Nc6 =+.

6.Be2 Qg5

7.g3 Nf6 8.Nf3 Qf5 9.0–0 Nc6!? 10.d4 e4 –/+.

7.g3 Nf6 8.Nf3 Qf5 9.0–0 e4 10.Nd4 Qh3 11.f3 Bd6 12.Nc3!? =.

7.g3 Nf6 8.Nf3 Qf5 9.0–0 e4 10.Nd4= Qh3 11.f3 Bd6 12.Rf2!? =.

7.g3 Nf6 8.Nf3 Qf5 9.0–0 e4 10.Nd4= Qh3 11.f3 Bd6 12.f4 Ng4 13.Bg4 Qg4?! 14.Nc3 =.

7.g3 Nf6 8.Nf3 Qf5 9.0–0 e4 10.Nd4 Qh3 11.f3 Bd6 12.f4 Ng4 13.Bg4 Qg4 14.Qg4 Bg4 15.b5 +=.

7.g3 Nf6 8.Nf3 Qf5 9.0–0 e4 10.Nd4= Qh3 11.f3 Bd6 12.f4 Ng4 13.Bg4 Bg4 14.Qe1 Nc6 15.Nc6 bc6 16.d3 Bf3 17.Rf2= a5 18.b5 Ba3 19.Ra3 cb5 20.Nd2?? b4–/+ 21.Ra1 0–0 22.de4 Be4–+ 23.Ne4 de4 24.Qd2 Rad8 25.Qc1 Qh5 26.Kg2 Rd6 27.c4 Rfd8 28.Raa2 b3 29.Rae2 a4 30.Qa3 Qa5 31.c5 Rc6 32.Rb2 Rc5 33.g4 Rc3 34.Rfe2 Qa7 35.Kf2 Rdd3 36.Rbd2 Rd2 37.Rd2 Qe3 38.Kf1 Qd2 39.Qa1 b2 (40.Qb2 Qb2 41.Ke1 Rc1#) 0–1. marsman – Caissa, Live Game Caissa's Web, 2004.

3.ab4 e6

4.Bb2 Bb4?? 5.Bg7 Bc5 6.Bh8 Bf2 (6...Nc6+–) 7.Kf2 Nh6 (7...Nf6 8.Nf3 Nc6 9.Nc3 Ng4 10.Ke1+–) 8.e3 Qh4 (8...Qg5 9.Nf3 Ng4 10.Kg1+–) 9.g3 Ng4 (9...Qg4 10.Qg4 Ng4 11.Kg2+–) 10.Kg2 Qg5 11.Na3 Qd5 12.Nf3 e5 13.h3 d6 14.Nb5 Ne3 15.de3 Qd1 16.Rd1 Na6 17.Rd6 Ke7 18.Bf6 Kf8 19.Rd8 1–0. Janek – Kostyk, internet, 2018.

4.Bb2 Bb4?? 5.Bg7 d5 6.Bh8 +–.

4.Bb2 Bb4?? 5.Bg7 Qg5 6.Bh8 f6 7.Nf3 Qg6 8.Qc1 h5 9.Qb2 Nc6 10.Nd4 Nd4 11.Qd4 Qc2 12.Nc3 Qb2 (12...Bc3 13.Qc3 Qg6 14.f4+–) 13.Rd1 Ke7 (13...Bc3 14.dc3 e5+–) 14.Nd5! (14.Nd5 ed5 15.Qb2+–) 1–0. Marquez,Benjamin (2045) – Salcedo,Pablo Esteban (1825), Bogota COL, 3rd McGregor Open, 2012. (=1.a3 c5 2.b4 cb4 3.ab4 e6 4.Bb2)

4.b5 d5 5.e3 Nf6 6.Nf3 Nbd7 7.c4 dc4 8.Bc4 b6 9.0–0 Bb7 10.d4 Qc7 11.Nbd2 Be7 12.Ba3 Ba3 13.Ra3 0–0 14.Qb3 Bf3 15.Nf3 (worse is 15.gf3 e5=) 15...Rfc8 16.Bd3 e5 (16...Nd5 17.Rfa1+/–) 17.de5 (better is 17.Ng5 Rf8 18.Bc4+–) 17...Ne5+= 18.Ne5 Qe5 19.h3 Rc7 20.Qa2 g6 21.Be2 Qe7 22.Bf3 Rac8 23.Qa1 Ne8 24.Bc6 a5 25.Rd3 Nd6 (25...Qf6 26.Qa2+=) 26.Qd4+/– Rc6 27.bc6 Rc6 28.Qa4 Qc7 29.Rfd1 b5 30.Qa1 1–0. Pirogov,Vyatchslav (2350) – Rudnev,Yuri (2065), Dimitrovgrad RUS, Summer Open, 2013. (=1.a3 c5 2.b4 cb4 3.ab4 e6)

4.Bb2 Nf6

5.Ra4 b5 6.Ra5 Nc6 7.Rb5 –/+.

5.Ra4 b6 6.g3 (better is 6.Nc3!?=) 6...Bb7–/+ 7.f3 (7.e4 Ne4 8.f3 Nf6–/+) 7...Bc6 8.Ra3 Bb4 9.Rb3 a5 10.c3? (10.e4 d5 11.ed5 Bd5 12.Bb5 Bc6 13.Bc6 Nc6 14.Bf6 Qf6–/+) 10...Bd6 (10...Bc5 11.d4 a4 12.dc5 ab3 13.cb6 Qb6 14.c4–+) 11.Bh3? (11.Ba3 a4 12.Bd6 ab3 13.Qb3 Ba4–/+) 11...b5 12.Qc2 b4 13.Qd3 Bc5 14.Ba1 a4 15.Rb2 b3 16.e3 Qb6 17.Qe2 a3 18.Qc4 ab2 19.Bb2 Ra2 20.Bc1 Bd5 21.Qd3 b2 22.Bb2 Qb2 23.Kf2 0–0 24.Ne2 Bc6 25.g4 Qb5 26.Qb5 Bb5 27.g5 Nd5 28.Rc1 Be2 29.Ke2 Be3 30.Rd1 Bg5 31.c4 Nf4 32.Kf2 Nh3 33.Kg3 Nf4 34.Nc3 Rd2! 35.Rd2 Nh5 36.Kg4 Bd2 37.Ne4 Nf6 38.Nf6 gf6 39.h4 f5 40.Kh5 Be1 41.f4 Bh4! 42.Kh4 Nc6 43.c5 Ra8 44.Kg5 Kg7 45.Kh5 f6 46.Kh4 Kg6 47.Kg3–+ Kh5 48.Kf3 e5 49.fe5 fe5 50.Ke3 Ra3 51.Kd2 Kg4 52.Kc2 Kf4 53.Kb2 Rh3 54.Kc2 Ke4 55.Kd2 Re3 56.Kd1 Kd3 57.Kc1 Re2 58.Kd1 Nb4 59.c6 dc6 60.Kc1 Rh2 61.Kb1 Kc3 62.Kc1 Rh1# 0–1. vcaliman – icodd (2180), net–chess.com, 2009.

5.b5 a5 6.e3 a4 (6...d5 7.Nf3=) 7.Na3 (7.Nc3!?+=) 7...Be7 8.Nf3 0–0 9.Be2 d5 10.0–0 Nbd7 11.c4 b6 (11...dc4 12.Nc4 Nc5 13.Bf6 Bf6 14.d4+/–) 12.d4 Bb7 13.Qc2 (13.Nb1 dc4 14.Ra4 Bd5+=) 13...dc4 (13...Bd6!?=) 14.Nc4+= (worse is 14.Bc4 Bf3 15.gf3 Nd5+=; 14.Qc4?! Qb8+=) 14...Rc8 (14...Be4!? 15.Qd1 Qc7+=) 15.Ra4 Be4 16.Qd2 Qc7 17.Rc1 Qb7 18.h3 (18.Ba3 Ba3 19.Ra3 Qd5+/–) 18...Rc7 19.Nce5 Rfc8 20.Rc7 Rc7 21.Ra1?? (21.Bd3 Bd6+/–) 21...h6?? (better is 21...Rc2 22.Qd1 Rb2–+) 22.Rc1 Rc1 23.Qc1 Ne5 24.de5 (24.Ne5 Bg2 25.f3 Bh3+=) 24...Nd7 25.Bf1 Nc5 26.Nd4 Qd5 27.Nc6 Bf8 28.Bd4 (28.Qa1 Qd7 29.Qa8 Qb7 30.Qb7 Nb7+–) 28...Nd3+= 29.Qa1 (29.Bd3!? Bd3 30.Na7+= (worse is 30.Bb6 Bb5 31.Na7 Qe5=)) 29...Qb5= 30.Na7 Qa5 (30...Qb3 31.f3 Bg6 32.Nc8=) 31.Qa5 (31.Nc8!?+=) 31...ba5= 32.f3 a4?? (better is 32...Bg6+=) 33.fe4+– a3?? (better is 33...Nc5+–) 34.Bd3 a2 (34...Kh7 35.Nc8 Bb4 36.Kf2+–) 35.Bc4 Bc5 36.Ba2 (36.Bc5 a1Q 37.Bf1 Qe5+=) 36...Bd4 (36...Be7 37.Nc8 Kf8 38.Ne7 Ke7 39.Bc5 Ke8 40.Bc4+–) 37.ed4 f6 (37...Kf8+–) 38.ef6 Kh8 39.Nc8 (39.f7 h5 40.f8Q Kh7 41.Be6 h4 42.Bf5 Kh6 43.g3 hg3 44.h4 Kh5 45.Qh8) 39...g5 40.e5 (40.d5 Kg8 41.de6 h5 42.e7 Kh7 43.e8Q Kh6 44.Qf8 Kg6 45.Qg7) 40...Kh7 41.Be6 h5 42.Bf5 Kh6 (42...Kh8 43.e6 Kg8 44.Bg6 h4 45.e7 g4 46.e8Q) 43.e6 (43.Nd6 h4 44.Nf7 Kh5 45.e6 g4 46.hg4) 43...h4 (43...g4 44.e7 Kg5 45.f7 Kf5 46.f8Q Ke4 47.e8Q Kd3 48.Qa3 Kd4 49.Qee3 Kd5 50.Qac5) 44.e7 (44.Nd6 Kh5 45.Nf7 g4 46.hg4) 44...g4 45.e8Q gh3 (45...Kg5 46.hg4 Kf4 47.Qe5 Kg5 48.Be4 Kg4 49.Bf3) 46.Qg6 1–0. Hechtlinger,John (2155) – Dinesh Kumar,Sharma, Dos Hermanas Internet qual–E, 2009. (=1.a3 e6 2.b4 c5 3.Bb2 cb4 4.ab4 Nf6)

5.b5 d5 6.e3 Be7 7.Nf3 0–0 8.c4 b6 9.Be2 Bb7 10.0–0 a5 11.Nc3 Qc7 12.Na4 Nbd7 13.Rc1 Qd8 14.d4 Rc8 15.Qd3 dc4 16.Rc4 Rc4 17.Qc4 Bd5 18.Qc2 Qb8 19.Rc1 Bd6 20.h3 Qb7 21.Ne1 Bb4 22.Bc3 Rc8 23.Qb2 Bd6 24.f3 Bc4 25.Nd3 Nd5 (25...Qd5 26.Bd2 Rc7 27.Nc3=) 26.Bd2= Be7 27.e4 N5f6 (27...Bd3 28.Bd3 Nb4 29.Bc4=) 28.Nf4 (28.Qc2 Ne4 29.fe4 Qe4+/–) 28...Be2= 29.Ne2 Ne8 30.Rc3 Nd6 31.Qc2 Rc3 32.Nac3 Qc7 33.Qd3 Nf8 34.Bf4 Ng6 35.Bh2 Qd7 The isolani on b5 becomes a target 36.e5 Nc8 37.Qc4 Na7 38.Bg3 Bb4 39.f4 (39.Na4 Qb5 40.Qb5 Nb5+=) 39...Ne7–/+ 40.Kf2 Bc3 41.Nc3 Nd5 42.Nd5 ed5 (42...Qd5?! 43.Qc7 Qd4 44.Kf1 Qd3 45.Kf2 Qd4 46.Kf1 Qd3 47.Kf2 Qd4=) 43.Qc2 Nb5 (43...Qb5 44.Qc7 h5 45.Qb8 Kh7 46.Qa7 Qb2 47.Kg1 Qd4 48.Kh2+–) 44.Ke3 (44.Qa4 Qc6–/+) 44...Qc7 (better is 44...Na3!? 45.Qd3 Nc4 46.Kf2 b5–+) 45.Qc7–/+ Nc7 46.Be1 Kf8 47.f5 Ke7 48.g4 Nb5 49.Kd3 Na3 50.Bc3 Nc4 51.Ba1 b5 52.Bc3 (52.Kc3 Kd7–+) 52...b4 53.Be1 Kd7 54.g5 White intends f6 (better is 54.Kc2–+) 54...g6 55.f6 Ke6 (55...b3 56.h4–+) 56.h4? (better is 56.Kc2–+) 56...Na3 (56...b3 57.Bc3–+) 57.Bd2 (57.Kd2 a4 58.Kc1 b3–+) 57...b3 58.Kc3 Nb5 (better is 58...Nb1 59.Kb3 Nd2 60.Ka4 Nf3–+) 59.Kb3 Nd4 60.Ka4 Nf5 61.Be1 Ke5 62.Ka5 d4 0–1. Huelle,Gunter (1835) – Grosse,Marcus (1885), Guben op, 2003.

5.c3 d5 6.Nf3 Bd6 7.e3 0–0 8.Be2 Nbd7 9.0–0 Ne5 (9...e5 10.Na3=) 10.d3 (10.Ne5 Be5 11.Na3 Bd7=) 10...Nf3=+ 11.Bf3 Bd7 12.Nd2 a5 (12...Bc6!?=) 13.ba5+= Ra5 (13...Qc7 14.Kh1 Ra5+= (14...Bh2? 15.g3+–)) 14.Qc2 (14.c4!?+=) 14...Ra1= 15.Ra1 Qc7 16.g3 (16.Nf1 e5=) 16...Rc8 (16...e5 17.Qb3=) 17.Qb3 (17.c4 Be7=) 17...Be5 (17...b5 18.c4 bc4 19.dc4 dc4 20.Nc4 Qc4 21.Qc4 Rc4 22.Bf6 gf6 23.Rd1=) 18.d4 (18.c4 Bb2 19.Qb2 b5 20.cd5 ed5=) 18...Bd6 19.Ra7 Bc6 20.Be2 Qb8 (20...Qd7 21.Ba3=) 21.Ra1 (21.Ra2 b6=) 21...b5 22.Ra5 Bc7 (22...Ne4 23.Ne4 de4 24.Ra6=) 23.Ra6 Bb7 (23...Qb7 24.Ra1=) 24.Ra2 Bc6 25.Ba3 Ne4 26.Ne4 de4 27.Rb2 Qa8 28.Bc5 Rb8 29.Ra2 Bd5? (better 29...Qb7+=) 30.Ra8+– Bb3 31.Rb8 Bb8 32.Bb5 Bc2 33.Kf1 Bd1 34.Ke1 Bf3 35.c4 Bc7 36.Bb4 f5 (36...f6 37.h3+–) 37.Be8 g5 38.Kd2 h5 (38...h6 39.h3+–) 39.d5 (39.Be7 Ba5 40.Kc2 g4+–) 39...ed5 40.cd5 f4 (40...Bd8 41.d6+–) 41.Be7 (41.ef4 gf4 42.d6 Bb6 43.gf4 Bf2+–) 41...Ba5 (41...fg3 42.hg3 h4 43.gh4 gh4 44.Bh4+–) 42.Kc2 fe3 43.fe3 h4 (43...Bb6 44.Bg5 Bc5 45.Kc3+–) 44.Bg5 hg3 45.hg3 Be1 (45...Bb4 46.Bc6+–) 46.Bf4 (46.d6 Bg3 47.d7 Bc7+–) 46...Kf8 47.Bc6 Ba5 (47...Kg7 48.d6+–) 48.Kb3 (48.d6 Bd8+–) 48...Be2 (48...Kf7 49.d6+–) 49.d6 Bd3 50.Bg5 Kf7 51.d7 Kg6 (51...Ke6 52.d8Q Bd8 53.Bd8+–) 52.d8Q Bd8 53.Bd8 Kf5 54.Kc3 Kg4 55.Bc7 Kf3 56.Bf4 Bb1 57.Kd4 Bd3 58.Bd5 (58.Bd7 Bf1+–) 58...Bb1 (58...Kg4 59.Be4 Be4 60.Ke4+–) 59.Ke5 Bd3 60.Kf5 Bb5 61.Be4 Kf2 62.Bd5 Bd3 63.Kf6 (63.e4 Ke2+–) 63...Bc2 (63...Be2 64.Be6+–) 64.Ke5 (64.g4 Bh7+–) 64...Bg6 (64...Bd1 65.e4+–) 65.e4 (65.g4 Ke2+–) 65...Ke2 66.Kd6 Kd3 (66...Kf3 67.e5 Kg4 68.e6+–) 67.e5 Kd4 68.Bc6 Bh5 69.e6 1–0. Fernandez Garcia,Emilio – Blasco Gallardo,F (1615), 4th Madrid Spain, San Viator Open, 2015.

3.ab4 Nf6

4.Bb2 g6 5.b5 Bg7 6.e3 0–0 7.c4 (7.Be2 d5=) 7...d6 (7...d5 8.Nf3=) 8.Nc3 Nbd7 9.Nf3 e5 (9...a6 10.Be2=) 10.d3 Re8 11.e4 Nc5 12.Be2 a6 13.0–0 ab5?? (better 13...Bd7=) 14.Ra8+– (14.Ra8 bc4 15.Qc2 cd3 16.Bd3+–) 1–0. alddhsfd (2065) – yoni_cronopio (2155), lichess.org, 2021.

4.b5 g6 5.e3 Bg7 6.Bb2 0–0 7.Nf3 d6 (7...d5 8.Be2=) 8.d4 (8.Be2 Qc7=) 8...Nbd7 9.Bd3 Nb6 10.c4 Qc7 11.0–0 Nc4 12.Bc4 (better 12.Qc2 Be6 13.Na3=) 12...Qc4–/+ 13.Nbd2 (better 13.Nc3!?–/+) 13...Qb5–+ 14.Bc3 Qc6 (14...Bf5 15.Ra5 Qd7 16.Qe2–+) 15.Rc1 (15.Qb3 Be6 16.Qb1 Bf5–+) 15...Qd7 (15...Bf5 16.Qe2–+) 16.e4 b6 17.e5 (17.d5 b5–+) 17...Nd5 18.Ba1 (18.Ne4 a5–+) 18...Bb7 19.ed6 ed6 20.Re1 Rfe8 21.Qc2 (21.Ne4 a5–+) 21...Rac8 (21...Nf4 22.Re8 Re8 23.Re1–+) 22.Qa2 (22.Qb1 Rc1 23.Qc1 Nf4 24.Re8 Qe8–+) 22...Rc1 23.Rc1 Ba8 (23...Nf4 24.Re1 Re1 25.Ne1 Bg2 26.f3–+) 24.Bb2 (24.Rb1–+) 24...Nf4 25.Kf1 (25.Kh1 Ng2! 26.d5 Nf4–+) 25...Nd3 (better 25...Qg4 26.Ne4 Qg2 27.Ke1 Qf3 28.Qc4 Re4 29.Kd2 Qf2 30.Kc3 Re3 31.Qd3 Rd3 32.Kc4 Qb2 33.d5 Bd5) 26.Rd1 (26.Rb1 Qe7 27.Kg1–+) 26...Nb2 (better 26...Qe7 27.Kg1 Bf3 28.Nf3 Qe2–+) 27.Qb2 Qa4 28.Ra1 Qd7 29.Qc3?? (29.Rd1 Bd5 30.Ra1–+) 29...Qe6 (29...Bd5 30.Kg1–+) 30.Qd3 Be4 (better 30...Qc8–+) 31.Ne4=+ Qe4 32.Qe4 Re4 33.Ra7 Bd4?? (better 33...Bf6=+) 34.Ra8 Kg7 35.Ra7?? (better 35.Ra4+–) 35...b5 (better 35...Bc3–+) 36.Nd4? (better 36.Rb7!? Bc5 37.Rb5–+) 36...Rd4–+ 37.Rb7 b4 38.Ke2 Re4 (38...Kf6!? 39.Ke3 Rc4 40.Kd3–+) 39.Kd3 Re6 (39...Rh4!? 40.h3 Kf6–+) 40.Rb5 d5! 41.Rb4 (41.Rd5 Rf6 Combination) 41...Rd6 (41...Ra6 42.g4–/+) 42.Rd4 1–0. alddhsfd (2000) – Scuba707 (2005), lichess.org, 2020.

2.a3 b6

3.Bb2 Bb7 (--> 1.b4 b6 2.Bb2 Bb7 3.a3 c5).

3.Bb2 cb4 4.e3 ba3=+ 5.Na3 d6 (5...Nf6 6.Nf3=+) 6.Nf3 (better 6.Qf3 d5 7.Bb5 Bd7 8.Qd5 Bb5 9.Qb5 Qd7 10.Qd7 Kd7 11.Nf3+=) 6...Bb7 7.Nb5 Nd7 (7...a6 8.Nc3=+) 8.Bc4 (better 8.Na7!? e5 9.d4+=) 8...a6=+ 9.Bf7 Kf7 10.Ng5 Kg6 11.Qg4?? (11.Ne6 Qc8 12.Bg7 Bg7 13.Qg4 Kf7 14.Ng5 Kf8 15.Ne6 Kf7 16.Ng5 Kg6 17.Ne6 Kf7=) 11...Ngf6 12.Qg3 Nh5 13.Qg4 Ndf6 14.Qe6 (14.Bf6 Nf6 15.Qg3–+) 14...Qe8 (better 14...Kg5 15.Nd4 Kg6–+ (15...Bg2? 16.Qf5 Kh6 17.Ne6+–)) 15.Nc7 Bc8?? (better 15...Qd7 16.Na8 Kg5 (worse 16...Ba8 17.Qd7 Nd7 18.Ra6=+) 17.f4 Kh6 18.Qd7 Nd7–/+) 16.Qc4= a6 draws heavy fire 16...d5 17.Qd3 Bf5 18.Qf5?? (better 18.Qe2 Qc6 19.Nf3 Qc7 20.Ne5 Kg5 21.f4 Kh6 22.Nf7 Kg6 23.Nh8 Kh6 24.Nf7 Kg6 25.Ne5 Kh6 26.g4+–) 18...Kf5–+ 19.Ne8 Kg5 20.Nc7 Ra7 (20...Rc8 21.Ne6 Kf5 22.Nd4 Kg6 23.Ra6–+) 21.Ne6 (21.Nb5 Rb7 (21...ab5?! 22.Ra7 Ne8 23.f4 Kg4 24.Ke2=) 22.Ra6 Ne4–/+) 21...Kf5 (21...Kg6 22.g4 Ng4 23.Rg1–/+) 22.Nd4 Kg6 23.g4 Ng4 24.Rg1 Nhf6 25.h3 h5 26.hg4 hg4 27.f3 (27.Nb5 Ra8–/+) 27...g3 (27...a5 28.Ne6–/+) 28.Nc6 Kf7?? (28...Ra8 29.Rg3 Kf7 30.Ne5 Ke8 31.Ke2–/+) 29.Ne5 (better 29.Na7 a5 30.Nc6+–) 29...Ke8–/+ 30.Rg3 Rc7?? (30...e6!?–/+) 31.Ke2?? (better 31.Ra6 Rc8 32.Rb6+–) 31...a5= 32.Ra3? (32.Bd4!? Rb7 33.Rgg1=) 32...Rh2 (better 32...Rc2!? 33.Bc3 Rh5–+) 33.Kd3–/+ e6 34.Rb3 Bc5 35.Bd4 Nd7 (better 35...a4 36.Rb5 Rh5–/+) 36.Bc5?? (better 36.Rg6 Rh6 37.Rg7 Ne5 38.Be5 Rg7 39.Bg7=+) 36...Nc5–+ (worse 36...Rc5 37.Nd7 Kd7 38.Rg7 Kd6 39.Rb6 Rc6 40.Rb8+–; 36...Ne5 37.Kd4 Nc6 38.Kd3 bc5 39.Rb5–+) 37.Kc3 Nb3 (better 37...Ne4!? 38.Kb2 Ng3 39.Rb6–+) 38.Kb3 Kf8 (38...Rd2 39.Rg6–+) 39.c3 (39.d3 Rhc2 40.Ka4 Rb2–+) 39...Kg8 (39...Rd2 40.f4–+) 40.d4 (40.Kc2 b5 41.Kd3 b4 42.cb4 ab4–+) 40...Rh1 (40...a4 41.Ka3 b5 42.Rg6 Rc3 43.Kb4 Re3 44.Kb5–+) 41.Rg4 (41.Rg2 Re1–+) 41...Rb1 (better 41...a4 42.Kb2 a3 43.Ka2 Rc3–+) 42.Ka4 (42.Kc2 Re1 43.Kd2 Ra1–+) 42...b5 (better 42...Rc3 43.Nc6 Rc6–+) 43.Ka5 b4 44.Kb6 (44.c4 dc4 45.Kb6 Rc8–+) 44...Rc3 45.Nd7 (45.Rf4 Rg1 46.Rh4–+) 45...b3 46.Nf6 (46.Nc5 Ra1 47.Rg2 Ra2–+) 46...Kf7 47.Nd5 (47.Nd5 ed5 48.Rf4 Kg8 49.Rh4–+). TwelveTeen (2440) – ChristianCew (2035), Time forfeit, 2016. (=1.a3 b6 2.b4 c5)

3.Bb2 Nf6 4.e3 e6 5.b5 Be7 6.Nf3 0–0 7.d4 Bb7 8.Nbd2 d6 9.a4 Nbd7 10.c4 cd4 11.Nd4 Rc8 12.Rc1 (12.a5 Nc5=+) 12...Ne5 13.Be2 (13.N2f3 Nf3 14.Nf3 d5=+) 13...Nfd7 (13...Bg2!? 14.Rg1 Ba8–/+) 14.0–0= Nc5 15.N2f3 Bf6 16.Ne5 (16.Ba3 Qc7=+) 16...de5 17.Nc2 (17.Nf3 Qc7–/+) 17...Qc7 18.Nb4 (18.Qe1 Na4 19.Ba1 Nc5–/+) 18...Rfd8 19.Qc2 Be4 20.Qc3 Na4 21.Qa3 Nb2 22.Qb2 Bb7 23.Rfd1 e4 24.Qb3 Be5 25.Rd8 Rd8 26.Rd1 (better 26.h3!?–/+) 26...Bh2–+ 27.Kf1 Rd1 28.Qd1 Bd6 29.Nc2 g6 (29...a5 30.Nd4–+) 30.Nd4 e5 31.Nb3 Kg7 32.Nd2 Be7 33.Qc2 f5 34.Qc3 Qd6 35.Nb3 Bf6 (35...Bc8 36.Nd2–+) 36.g3 (36.Qa1 Qb8–+) 36...Be7 37.Nd2 Kf6 38.Nb3 Qb4 39.Qc2 Qd6 40.Nc1?? (40.Qc3 a6 41.ba6 Ba6 42.Nd2–+) 40...Bc8 (40...a6 41.ba6 Ba6 42.Na2–+) 41.Na2 Be6 42.Nc3 Qc5 43.Qa4 Qc7 44.g4 Kf7 45.Qb3 Bc5 46.Qc2 Qe7 47.gf5 gf5 48.Bh5 Kf8 49.Be2 Qd6 50.Qa2 Qd7 (50...f4 51.Ke1 f3 52.Bf1–+) 51.Na4 (51.Ke1 Bb4 52.Qb2 Qd6–+) 51...Qe7 (51...Qb5 52.Nc5 bc5 53.Qa7 (53.cb5?? Ba2 54.Ke1 Bb1–+) 53...Bc4 54.Bc4 Qc4 55.Kg2–+) 52.Nc3? (52.Nc5!? bc5 53.Qa6–+) 52...Qf7 (52...Qh4 53.Kg1 Be3 54.Ne4 Qe4 55.fe3 Qe3 56.Kh1 Qh3 57.Kg1 Qg3 58.Kh1–+) 53.Nd5 Bd5 54.cd5 Bd6 (54...f4 55.Ke1–+) 55.Bc4 (55.Qc4 Kg7–/+) 55...Kg7 56.Qa6 Qc7 57.Be2 f4 58.Kg2 (58.Qa4 Qc1 59.Bd1–+) 58...f3 59.Bf3 ef3 60.Kf3 e4! 61.Ke4 Qc4 62.Kf3 Qd5 63.Ke2 Qf7 (63...Qc4 64.Kf3 Kg6 65.Kg2–+) 64.f3 (64.Qa1 Kg6 65.Qd4 Qa2 66.Kf1 Qe6–+) 64...Bc5 (64...Qc4!? 65.Kf2 Qc2 66.Kf1–+) 65.Kf2 (65.Qa1 Kf8–+) 65...Qe7 (65...Qe6 66.Qa1 Kf7 67.Qe1–+) 66.Kg2 (66.Qa1 Kg6 67.Qb1 Kf6–+) 66...Qg5 67.Kf2 (67.Kh3 Qe3 68.Qb7 Kf6 69.Qc6 Qe6 70.Qe6 Ke6 71.Kg4–+) 67...Qe3 68.Kg2 Qg1 (68...Qf2 69.Kh3 Qf3 70.Kh2 Qf2 71.Kh3 Qf1 72.Kh4 Be7 73.Kg4 h5 74.Kg3 Bd6 75.Kh4 Qf4 76.Kh5 Qf3 77.Kg5 Be7) 69.Kh3 Qh1 (69...Qh1 70.Kg3 Qe1 71.Kg4 Kg6–+) 0–1. TwelveTeen (2755) – Shannow (2770), Time forfeit, 2018. (=1.a3 c5 2.b4 b6)

3.Nc3 e6 4.Nf3 (4.bc5 Bc5 5.d4 Be7=) 4...Bd6 (4...cb4!? 5.ab4 Bb4=+) 5.e4 Bb7 (5...cb4 6.Nb5 Bf8 7.ab4=) 6.Bb2+= Bc6 (6...Be7 7.bc5 bc5 8.Rb1+=) 7.d3 (7.Nb5 Bf8 8.Nd6 Ke7 9.e5 cb4 10.Ng5+–) 7...Nf6? (better is 7...cb4 8.Nb5 Bf8 9.Nd6 Ke7+/–) 8.Be2?? (better is 8.b5+–) 8...cb4=+ 9.ab4 Bb4 10.0–0 Bc3 11.Bc3 0–0 12.Ng5 Ne4?? (better is 12...Qe7=+) 13.Ne4+/– d5 14.Ng3 a5 (14...d4 15.Bb4 Re8 16.Bf3+/–) 15.Nh5 (15.Bd4 Nd7+–) 15...f6 (15...d4 16.Bd2+/–) 16.Bf3 e5 17.Re1 d4 18.Bb4 Rf7 19.Bg4 (better is 19.Ng3!?+/–) 19...Qd5 20.Bf3 Qb5 (20...Qd8!?=) 21.Bc6 Nc6 22.Bd2 Re8 (22...a4 23.Ng3+/–) 23.Rb1 Nb4 (23...Qc5 24.Ng3 f5 25.Rb2+/–) 24.Bb4+– ab4 25.Ra1 g6 26.Ng3 f5 27.Qd2 f4 (better is 27...Qc5+–) 28.Ne4 f3 (28...Rd8+–) 1–0. ricar67 – BLACKBEARD, ChessWorld.net, 2004.

3.Nf3 Bb7 4.c4 (4.bc5 bc5 5.Nc3 Nc6+=) 4...e6= 5.bc5 bc5 6.Qb3 Qc8 7.d3 Nc6 8.Bf4 d6 9.e3 Nf6 10.h4 (10.d4 cd4 11.ed4 Be7=) 10...Be7 11.Nbd2 0–0 12.Be2 Rb8 13.h5 (13.Qc2 e5 14.Bg5 Qe6+=) 13...e5 14.Bg3 Nd4 15.Qd1 Ne2 16.Qe2 e4 17.Nh4 Bc6 18.de4 Ne4 19.Ne4 Be4 20.Rd1 Rd8 (20...Bf6!? 21.0–0 Rb2–/+) 21.f3= Bc6 22.0–0 Qe6 23.e4 Ba4 24.Rd5 Rb6 25.Nf5 Bf8 26.Qd2 Rd7 27.Ne3 g6 28.Qa5 Bb3+= 29.Qc3 Bg7 30.Qd2 Bh6 31.Rc1 f5 32.Qd3 Ba4 33.Rc3 fe4 34.Qe4= Qf7 35.Ng4 Bg7 36.hg6 hg6 37.Rg5 Re7 38.Qd3 Re6 39.Rc1+= Rb2 40.Bd6+= Bd4 41.Qd4! cd4 42.Nh6 Kg7 43.Nf7 Kf7 44.Be5 Rd2 45.Bf4 Ra2 46.Ra5 Ree2? 47.Ra4+– Rg2 48.Kh1 1–0. Ambrus,Endre (2280) – Olariu,Dan (1800), Deva tt, 1999. (=1.a3 c5 2.b4 b6)

3.Nf3 d5 4.e3 e6 5.c4 Bb7 (5...Nf6 6.bc5 bc5 7.Nc3 Be7 8.d4 0–0 9.dc5 dc4 10.Bc4= 0.09) 6.Bb2 (6.bc5 bc5 7.cd5 ed5= 8.Nc3 Nd7 9.d4 Ngf6 10.Rb1+= 0.34) 6...Nf6 7.bc5 (7.cd5 Bd5 (worse is 7...cb4 8.de6 fe6 9.ab4+/– Bd6 10.Nd4+/– 1.03) 8.Nc3 Bb7= 9.bc5 Bc5 10.d4= 0.09) 7...bc5 (7...Bc5 8.cd5 Bd5 9.Nc3 0–0 10.Nd5= 0.16) 8.cd5 ed5 9.Bb5 Bc6 10.Bc6 (10.Bf6= 0.16) 10...Nc6 11.Qa4 Rc8 12.Bf6 Qf6 13.Nc3 Qe6 14.d4 Be7 15.dc5 Bf6 (better is 15...0–0!?=) 16.Rc1+/– 0–0 17.0–0 Rfd8 18.Ne2 Qe7 19.Rfd1 Ne5 20.Ne5 Be5 21.Nd4 1–0. Weemaes,R (2310) – Van Lerberghe,Filip, TCh–BEL2, 2004. (=1.a3 c5 2.b4 b6)

3.Nf3 Nf6 4.Nc3 (4.e3 d5=) 4...d5 5.e3 (5.bc5 bc5 6.e3 a6=) 5...e6 6.Rb1 (6.bc5 Bc5 7.d4 Bd6=) 6...Be7 (6...cb4 7.ab4 Bd6 8.Qe2=) 7.bc5 bc5 8.Bb2 0–0 9.Ba1 (9.Ne5 Bb7=) 9...Nc6 10.Bb5 Bd7 11.0–0 Rb8 (11...a6 12.Ba4=+) 12.a4 (12.Qe2 Qc7=+) 12...Qa5 (12...Qc7 13.Re1=+) 13.Ne2 a6 14.Bc3 Qb6 15.a5 Qc7 16.Bc6 Bc6 17.Rb8 (17.Be5 Bd6 18.Bd6 Qd6=+) 17...Rb8 18.Ne5 (18.Be5 Bd6 19.Qa1 d4 20.ed4 Bf3 21.gf3 Nd5=+) 18...Ne4 (18...Ba4 19.d3=+) 19.Ba1 (19.Nc6 Qc6 (19...Nc3? 20.Ne7 Qe7 21.Nc3+–) 20.Be5 Bd6=+) 19...Be8 (19...Ba8 20.Ng3–/+) 20.d3 Nf6 (20...Nd6 21.Nf4–/+) 21.Bc3=+ Ba4 22.Qd2 d4 (22...Nd7!? 23.f4 Bd6=+) 23.ed4= cd4 (23...Bd6 24.f4=) 24.Bd4 Qc2 25.Qc2 Bc2 26.Nc6 Rb7 27.Ne7 Re7 28.Nf4 (28.Rc1 Bd3 29.Nf4 Bb5=) 28...Rd7 (28...Nd5 29.Bc5 Re8 30.Nd5 ed5 31.d4=) 29.Bf6= gf6 The isolani on d3 becomes a target 30.Rc1 Bd3 31.h4 (31.Rc8 Kg7 32.Nh5 Kh6 33.Nf6 Rd4=) 31...Bb5 (31...Bg6 32.Rc6 Ra7 33.f3=) 32.Rc8 Kg7 33.g4 (33.Nh5!? Kh6 34.Nf6 Rd1 35.Kh2=) 33...f5–/+ 34.g5 f6 (better 34...h6 35.Nh5 Kg6 36.Nf4 Kh7–/+) 35.Nh5 Kg6 36.Nf6 Rd4 (36...Rd1 37.Kh2 f4 38.Rc5=) 37.Rg8 Kf7 38.h5 Rg4 39.Ng4 Kg8 40.Ne5 h6 (40...Be8 41.h6+–) 41.g6+– (41.gh6?! Kh7=) 41...Kg7 42.f3 (42.Kg2 Be2 43.f3 Bd1+–) 42...Kf6+– 43.Nf7 (43.Kh2!?+–) 43...Be8 44.Nd6 Bc6 45.Kf2 f4 (45...e5!?+=) 46.Nf7+– Kg7 47.Ke2 Bb5 48.Kd2 e5? (48...Be8 49.Ne5 Kf6 50.Ng4 Kg7+–) 49.Ne5+– Kf6 50.Kc3 Ba4 51.Kd4 Bc2 (51...Bd1 52.Ke4 Kg5 53.Nd3 Kh5 54.g7+–) 52.Ng4 (52.Nc6 Ba4 53.Nb4 Bd1+–) 52...Kg5 53.Ke5 Kh5 54.g7 Bh7 55.Nf6 (55.Kf4?! Kg6+=) 55...Kg6 56.g8Q Bg8 57.Ng8 Kg5 (57...h5 58.Kf4 Kf7 59.Nh6 Kg6 60.Nf5+–) 58.Nh6! (58.Nh6 Kh6 59.Kf4+–) 1–0. Berchtenbreiter,Maximilian (2420) – Schnider,Gert (2375), Graz Casino Open, 2014. (=1.a3 c5 2.b4 b6)

2.a3 c4

3.Bb2 b5 4.d3 d5 5.dc4 bc4 6.c3 Nc6 7.g3 g6 8.Bg2 e6 9.Nf3 Bg7 10.Nbd2 Nf6 11.0–0 0–0 12.Re1 Rb8 13.e4 de4 14.Ne4 Qd1 15.Rad1 Ne4 16.Re4 Ba6 17.Bf1 Rfd8 18.Rd8 Rd8 19.Bc4 Bc4 20.Rc4 Ne5 21.Rc7 Nf3 22.Kg2 Nd2 23.Ra7 Nc4 24.Ba1 Rd3 25.b5 Bc3 26.Bc3 Rc3 27.a4 Rb3 28.f4 Kg7 29.h4 Kf6 30.Kh3 Rb4 31.Kg4 h5 32.Kf3 Nd6 33.Ra6 Rb3 34.Kf2 Nf5 35.b6 Rg3 36.a5 Rb3 37.Ra7 Nd6 38.Kg2 Rb5 39.Rd7 Nc8 40.b7 Na7 41.a6 Rb6 42.Rd8 Nc6 43.Rc8 Na7 44.b8Q Rb8 45.Rb8 Nc6 46.Rb6 Kf5 47.Rc6 e5 48.fe5 Ke5 49.a7 f5 50.Rg6 f4 51.Rg5 Ke4 52.Rh5 f3 53.Kf2 Kf4 54.Rg5 Ke4 55.Rg4 Ke5 56.Kf3 Kd5 57.h5 Ke5 58.h6 Kd5 59.h7 Ke5 60.h8Q Kd5 61.a8Q Ke6 62.Re4 Kd6 63.Re6 Kd7 64.Re7 Kd6 65.Qc6 Ke7 66.Qd7 Kd7 67.Ke4 Ke6 68.Qh6 Kd7 69.Kd5 Ke7 70.Qe6 Kd8 71.Qf7 Kc8 72.Kc6 Kd8 73.Qd7 1–0. golfx – undita, kurnik, 2012. (=1.a3 c5 2.b4 c4)

3.Bb2 Nc6 4.g3 d5 5.Bg2 e5 6.b5 Qb6 7.Nc3 Bc5?? (7...d4 8.Nd5 Qd8 9.bc6 bc6+–) 8.Nd5+– (8.bc6?! Bf2 9.Kf1 Bg1 10.Rg1 Nf6 11.cb7 Bb7+/–) 8...Bf2 9.Kf1 Qd8 10.bc6 (better is 10.Kf2!? Be6 11.Ne3 Qf6 12.Ke1 Nd4+–) 10...Bd4 11.Bd4 ed4 12.c7 Qd7 13.e4 de3 (13...Ne7 14.Qe2 Qa4 15.Ne7 Ke7 16.Qh5+–) 14.de3 (14.Qe2 Qf5 15.Ke1 Be6 16.Ne3 Qe5+–) 14...Ne7 15.Ne7 Qe7 16.Qd8 Qd8 17.cd8R Kd8 18.Rd1 Kc7 19.Nf3 Kb8 (19...Re8 20.Kf2+–) 20.Kf2 Re8 21.Rd6 f5 22.Rhd1 g6 23.Rd8 Re6 (23...Rd8 24.Rd8 c3 25.Rd3+–) 24.Nd4 (24.R1d7!? Rc6 25.Rh7 Rc7+–) 24...Rb6 25.Bd5 c3 26.Ne6 Rb2 (26...a6 27.Rd3 Ka7+–) 27.Bb3 b6 (27...a5 28.Rc8! Ka7 29.Rc3 a4 30.Ba4 Kb6 31.Rd6 Ka7+–) 28.R1d7 (28...Rc2 29.Bc2 f4 30.Rc7 fe3 31.Ke3 a6 32.Rdc8) 1–0. JM (2065) – Ruprich,Tony (1975), remoteschach.de, 2002.

3.e3 d5 4.d3 b5 (4...cd3!? 5.Bd3 e5=) 5.dc4+– bc4 6.Nc3 Nf6 (6...e6 7.Nf3=) 7.Nf3 (7.Bc4!? e6 8.Bb5 Bd7 9.Bd3+–) 7...Bb7 (7...e6 8.e4=) 8.e4+= e6 (worse 8...Ne4 9.Ne4 de4 10.Qd8 Kd8 11.Ne5+–; worse 8...de4 9.Qd8 Kd8 10.Ne5+–) 9.e5 Nfd7 10.Bf4 Nc6 11.Be2 (11.b5 Ne7 12.Nh4=+) 11...Qb8=+ Increases the pressure on e5 12.0–0 Nce5 13.Ne5 Ne5 14.Nb5 (14.Bg3!? a5 15.Qd4=+) 14...Nf3–/+ 15.Bf3 Qf4 16.Re1 Be7 17.g3 Qb8 18.Nd4 0–0 19.c3 Bf6 20.Qc2 a5 21.b5 Qd6 (21...e5 22.Nf5–/+) 22.a4–/+ g6 23.Ne2 e5 24.Rad1 Rad8 25.Bg2 Ba8 26.f4 (26.Qd2 Qb6–/+) 26...Qc5–+ 27.Kh1 Rfe8 (better 27...d4!? 28.Ba8 d3–+) 28.fe5=+ Be5 29.Qd2 Qa3 30.Nd4 (30.Ra1 Qd6=+) 30...Bd4–/+ (30...Qa4? 31.Ra1 Qa1 32.Ra1+–) 31.Qd4 Qa4 32.b6 Qb5 33.Rb1? (33.Rf1 Bb7–/+) 33...Qc6 (better 33...Re1!? 34.Re1 Rd6–+) 34.Re8 Re8 35.h4 (35.Bf3 a4–+) 35...a4 36.h5 gh5 37.Ra1 Bb7 38.Rf1 Qg6 39.Rf6?? (39.Qf4 Re7 40.Qf2–+) 39...Qg3 40.Rf1 Re2 41.Rg1 (41.Qg1 Kf8 42.Rf3 Qh4 43.Rh3 Rg2 44.Rh4 Rg1 45.Kg1 a3–/+) 41...Kf8 (41...a3 42.Qf6 d4 43.Qd8 Kg7 44.Qd4 f6 45.Qg4 hg4 46.Bb7 Qh4) 42.Qc5 Ke8 43.Qb5 (43.Qc7 Qh4 44.Qh2 Qh2 45.Kh2–+) 43…Kd8 (43...Kd8 44.Qc4 dc4 45.Rd1 Ke7 46.Rd7 Kd7 47.Bb7 Qe1) 0–1. TwelveTeen (2595) – penguingim1 (2645), Time forfeit, 2017. (=1.a3 c5 2.b4 c4)

3.e4+= b5 (3...d5 4.ed5 Qd5 5.Nc3 Qe6 6.Qe2+=) 4.a4 Ba6 (4...Bb7 5.Nc3 a6 6.ab5 ab5 7.Ra8 Ba8 8.Qh5+=) 5.Nc3 Qb6 6.Qh5 (6.ab5 Bb5 7.Qh5 Ba6+/–) 6...ba4 (6...Nf6!? 7.Qf3 e6+=) 7.b5+/– (< 7.Ra4 e6+=) 7...Bb7 8.Bc4 e6 9.Na4?? (9.Qe2 a6 10.Ra4 ab5 11.Bb5 Ra4 12.Na4 Qc7+/–) 9...Qa5?? (better is 9...Qd4!? 10.Nb2 Qe4 11.Ne2 Nf6–/+) 10.Nf3 (better is 10.Qe5!?+/–) 10...Nf6+= 11.Qh3 (11.Qe5 d6 12.Qb2 Ne4+=) 11...Ne4 12.0–0 d5 13.Bd3 Nd7 14.Bb2 Qc7 15.Rfe1 f5? (15...Qf4!?+=) 16.Be4 (16.Nd4 e5 17.Ne6 Qd6 18.Nf8 Qf8+–) 16...de4+/– 17.Ng5 Bd5 (17...Qc2? 18.Ne6 Nf6 19.Qf5+– (19.Nf8?! Rf8 20.Qf5 Qc8 21.Qe5 Kf7+–)) 18.d3 Qc2 19.de4 Be4? (19...fe4 20.Ne6 Qc4 21.Qh5 Ke7+–) 20.Ne6 (20.Re4 fe4 21.Qe6 Be7+–) 20...Bd6 (20...Qd3 21.Ng7 Kf7+–) 21.Ng7 Kd8 (21...Kf7 22.Nf5!! Bf5 23.Qh5 Kg8 24.Qg5 Bg6 25.Qd5 Bf7 26.Qd6+–) 22.Ne6 Ke7 (22...Ke8 23.Bh8 Qc4 24.Nc3+–) 23.Nd4 Qc7 (23...Qd2 24.Nf5 Kd8 25.Re4+–) 24.Nf5 Kf7 25.Re4 (25.Qh5 Kf8 26.Qh6 Kf7 27.Qg7 Ke8 28.Re4 Kd8 29.Nd6 Qd6 30.Qh8 Nf8 31.Qf8 Qf8 32.Rd1 Kc8 33.Rc4 Kb8 34.Be5 Qd6 35.Rd6 a6 36.Rd7) 25...Nf6 26.Qb3 Kg6 27.Qe6 Bh2 (27...Qc1 28.Rc1 Bh2 29.Kh2 Rhf8 30.Rg4 Kh5 31.Ng3 Kh6 32.Qe3) 28.Kh1 (28…h5 29.Qf6 Kh7 30.Qh6 Kg8 31.Qh8 Kf7 32.Qg7) 1–0. rookie2 – ricar67, ChessWorld.net, 2004.

3.Bb2 d5

4.d3 b5 5.dc4 bc4 6.e3 e6 7.Nd2 Ne7 8.g3 Ng6 (8...Nbc6 9.Rb1=) 9.Bg2 (9.Nc4 Nc6 10.Nd2 Rb8+/–) 9...Nc6 10.Ngf3 f6 11.0–0 Be7 12.b5 (12.e4 a5 13.b5 Rb8+=) 12...Nb8 (12...Rb8!? 13.a4 a6+=) 13.a4 0–0 14.Bc3 (14.Nc4 a6 15.Na3 ab5 16.ab5 Ra4+/–) 14...Nd7 (14...Qc7 15.e4 de4 16.Ne4=) 15.Re1 (better is 15.Nd4!? Nc5 16.Nc6+/–) 15...Nc5= 16.e4 e5? (better is 16...de4 17.Nd4 f5+=) 17.ed5+– Qd5? (17...Bf5+–) 18.Qe2 (18.Ne5 Qg2 19.Kg2 fe5+–) 18...Be6?? (better is 18...Bb7+/–) 19.Ne5+– Qe5 (19...Qd8 20.Ng6 hg6+–) 20.Be5 (20.Be5 fe5 21.Ba8 Ra8 22.Nc4+–; 20.Qe5?! fe5 21.Ba8 Ra8=) 1–0. golfx – harunl, kurnik, 2012. (=1.a3 c5 2.b4 c4)

4.e3 Nf6 5.Nf3 e5 (5...a5 6.b5=) 6.d3 (6.Be5 Nc6 7.Bc3 Ne4+–) 6...Bd6 (6...e4!? 7.de4 Ne4+= (7...de4? 8.Qd8 Kd8 9.Ng5+–)) 7.dc4+– dc4 (7...e4 8.Nfd2+–) 8.Bc4 (better 8.Be5!? Be5 9.Qd8 Kd8 10.Ne5+–) 8...Nc6 9.Nc3 Bg4 (better 9...Qe7!?+–) 10.Nb5+– Bc7? (better 10...Ke7 11.Nd6 Qd6 12.Qd6 Kd6+–) 11.Bf7?? (better 11.Qd8 Bd8 12.Ne5 Ne5 13.Nd6 Ke7 14.Be5+–) 11...Kf7= 12.Ng5 (12.Qd8!? Bd8 13.Ne5 Ne5 14.Be5=+) 12...Kg6–/+ 13.Qb1?? (better 13.Qd8 Bd8 14.Nd6 Kg5 15.Nf7 Kh5 16.Nh8–+) 13...Kg5–+ 14.h4 (14.Nc7 Qc7 15.0–0 Be2–+) 14...Kh6 15.c4 a6 16.Nc7 Qc7 17.f3 Bf5 (better 17...Be6–+) 18.Qf5+– g6 19.Qf6 Rhf8 20.Qg5 Kg7 21.h5 Ne7 (21...Rf5 22.Qg3 Rd8 23.hg6 hg6+–) 22.Be5 Kg8 23.Bc7 Nf5 24.hg6 hg6 25.Qg6 Ng7 26.Be5 Rf7 27.Rh8! (27.Rh8 Kh8 28.Qf7 Rd8 29.Qg7) 1–0. TwelveTeen (2410) – seb333 (1815), Time forfeit, 2016. (=1.a3 c5 2.b4 c4)

2.a3 Nc6

3.Bb2 d6 4.b5= a6?? (4...Na5 5.e4=) 5.e3?? (better 5.bc6 bc6 6.Nc3+–) 5...Ne5 (5...ab5 6.Bb5 e5 7.f4=) 6.ba6+= Nf6 (6...ba6!? 7.Be5 de5=) 7.Nf3 Ra6? (7...Ned7!? 8.ab7 Bb7 9.Bf6 gf6+–) 8.Ne5 (better 8.Be5 de5 9.Ba6 ba6 10.Ne5+–) 8...g6?? (better 8...de5 9.Bb5 Nd7 10.Ba6 ba6+–) 9.Bb5 Bd7 (9...Rc6 10.Nc6 bc6 11.Bc6 Bd7 12.Bf6 ef6 13.Qf3+–) 10.Nd7 Qd7 (10...Nd7 11.Bh8 Ra7 12.0–0+–) 11.Ba6 (better 11.Bd7 Kd7 12.Bf6 ef6+–) 11...Bg7 (11...ba6 12.Bf6 ef6 13.Qf3+–) 12.Bc4 0–0 13.Nc3 d5 14.Bb5 Qb5 (14...Qf5+–) 15.Nb5 d4 16.ed4 cd4 17.Nd4 Nd5 18.Ne6! Bb2 (18...fe6 19.Bg7 Combination) 19.Nf8 Ba1 20.Qa1 Kf8 21.Qh8 1–0. TwelveTeen (2470) – harakkaperkele (1685), lichess.org, 2017. (=1.a3 c5 2.b4 Nc6)

3.b5 Nd4 4.e3 Nb5? (better is 4...Ne6=) 5.Bb5+– e5 6.Bb2 a6 7.Be2 e4 8.d3 Qb6 9.Bc3 d5 10.de4 de4 11.Qd5 Qe6 12.Qe6 Be6 (12...fe6?? 13.Nd2 Nf6 14.Rd1+–) 13.Nd2 Bf5 14.Bh5 Nf6 15.Bf6 gf6 16.Ne2 Bg6 17.Bg6 fg6 18.Ne4 Rc8 (18...f5 19.Ng5+–) 19.Nf6 Kf7 20.Ne4 Rg8 (20...Be7 21.c3+–) 21.Ng5 Kg7 22.Rd1 Kh6 23.Nf7 Kg7 24.Rd7 Kf6 25.Nf4 (worse is 25.Rb7 Rg7 26.Rb6 Kf7 27.Ra6 Rb8+–) 25...Rb8 26.e4 Rg7 27.e5 Kf5 28.g3 g5 29.Nh5 Rf7 30.Rf7 Kg6 31.Rf8! Rf8 (31...Rf8 32.Nf6 Combination) ½–½. Schirmer,Michael – Friedrich,Gerd, FRG corr Germany, 1990. (=1.a3 c5 2.b4 Nc6)

3.c3 Rb8 4.Nf3 cb4 (4...e5 5.e4=) 5.cb4 f5 6.g4 (better is 6.d4 e6 7.Nc3+=) 6…h5 (6...h5 7.gf5 d5+/–). Armada,Marcio – Shell,Gregory, IECC, 2001. (=1.a3 c5 2.b4 Nc6)

3.c3 e5 4.e3 =.

3.bc5 Nf6 4.Bb2 (4.e3 Qa5=) 4...g6 (4...e5 5.c4 Bc5 6.e3+=) 5.d3 (better is 5.d4!?=) 5...e5–/+ 6.e4 (6.Nd2–/+) 6...Bg7 (better is 6...Bc5 7.Nd2 Qb6–+) 7.Nf3= 0–0 8.d4?? (better is 8.Ne5 Re8 9.Nc6 bc6 10.Be2+=) 8...Ne4–/+ 9.de5 (9.Nbd2!? Nd2 10.Qd2–+) 9...Nc5–+ 10.Nc3 Ne5 11.Ne5 Qe8?? 12.f4+– Be5 13.fe5 Qe5 14.Be2 d5 15.0–0 Qg5?? 16.Nd5 Bh3 17.Rf2 Ne4 18.Qd4 f6 19.Qe4 f5 20.Qe6 Rf7 21.Rd1 Rd8 22.Nf6 Kf8 23.Rd8 (23.Rd8 Kg7 24.Ng4 Qf6 25.Bf6 Rf6 26.Qf6) 1–0. Cruz Vera,Javier – Misle Gerig,Tobias, San Cristobal ESP, 1st Verano Open, 2012.

2.Bb2 cb4

3.a3 Nf6 4.ab4 e6 5.b5 a6 6.e3 Qc7 7.c3 b6 8.c4 Bb7 9.Nf3 Bc5 10.Be2 Be7 11.Nc3 h5 12.Qb3 d5 13.cd5 Nd5 14.Rc1 Nc3 15.Rc3 Qd8 16.Bc4 a5 17.h3 Nd7 18.d4 Nf6 19.Nd2 0–0 20.Rg1 Nd5 21.Rc1 Rc8 22.g4 h4 23.Kf1 Bb4 24.Ne4 Nf6 25.Ng5 Bd5 26.Qd3 Bc4 27.Rc4 Rc4 28.Qc4 Qd5 29.Qd5 ed5 30.f3 Rc8 31.Rg2 Rc2 32.Rc2 Nd7 33.Rc8 Bf8 34.e4 f6 35.Ne6 Kf7 36.Nf8 Nf8 37.Rf8 Kf8 38.ed5 Kf7 39.Ke2 Ke7 40.Kd3 Kd6 41.Ke4 g6 42.f4 f5 43.gf5 gf5 44.Kf5 Kd5 45.Kg5 Kc4 46.Kh4 Kd5 47.f5 Kc4 48.Kg5 Kd5 49.f6 Ke4 50.f7 Kd5 51.f8Q Kc4 52.h4 Kd3 53.h5 Kc2 54.h6 Kb3 55.h7 Ka2 56.h8Q Kb1 57.d5 Kc2 58.d6 Kb1 59.d7 Ka2 60.d8Q Kb3 61.Qff6 Ka2 62.Qc3 Kb1 63.Qa3 Kc2 64.Qd1 Kd1 65.Qhc3 Ke2 66.Qa1 Kf2 67.Qae1 Kg2 68.Qcg3 1–0. mysterychessplayer_x (2010) – Steakfisch_Lv4 (1975), Hourly Bullet Arena, 2016.

3.e3 Qa5 4.Bc4 d5 5.Bb3 e6 6.Ne2 Bc5?? (better is 6...Nf6–/+) 7.Bg7+– d4 (7...Nf6 8.Bh8 (worse is 8.Bf6 Rg8+–) 8...Nbd7 9.Ng3+–) 8.Bh8 f6 (8...de3 9.fe3 Be7 10.Nd4+–) 9.0–0 (better is 9.Nd4 Bd4 10.ed4 Qg5+–) 9...e5 (9...de3 10.de3 Qc7+–) 10.Bg8 Be7 11.ed4 Nc6 12.d5 Nd4 13.Bh7 Qb5 14.Bd3 Qd5 15.c3 Ne2 16.Qe2 Bd7 17.Bg6 Kd8 18.Be4 Qg8 19.Bb7 Rb8 20.Bf6! Bf6 21.Qd3 Rb7 22.cb4 Rb4 23.Nc3 Rd4 24.Qc2 Rg4? 25.g3 e4 26.Ne2 Ba1 27.Ra1 Qd5 28.Nf4?? Rf4?? 29.gf4+– Bc6 30.f3 ef3 31.Kf2 Qd4 32.Kg3 Qa1 33.d3?? Qe1 34.Kg4?? Qg1–+ 35.Kf5 Bd7 36.Ke4 f2 37.Qe2 f1Q 38.Qf1 0–1. Mphilliber – RisingFast, ChessWorld.net, 2013.

3.e3 e5 4.Bc4 Nc6 5.Qf3 Nf6 6.d4 ed4 7.ed4 d5 8.Bb5 a6 9.Bc6 bc6 10.Ne2 Bg4 11.Qg3 Be2 12.Ke2 Qe7 13.Kd2?? (better is 13.Qe5–+) 13...Ne4 14.Kd3 (14.Kd1 Ng3 15.hg3 Qf6 16.Re1 Be7–+) 14...Ng3 15.hg3 Qe4 (16.Kd2 Qg2 17.Re1 Kd7–+) 0–1. slavisa11 – SirCharles, Live Game Caissa's Web, 2004.

3.e3 e6 4.a3 ba3 5.Na3 Nf6 6.Nf3 Be7 7.Nb5 Nc6 8.Bf6 Bf6 (8...gf6 9.Nfd4=+) 9.Nd6 Ke7 10.Nc8 Qc8 11.c3 Rd8 12.Qb1 h6 (12...g6 13.Qd3=) 13.Be2 (13.Qh7 d5 14.Ra4 e5=) 13...d5 14.0–0 Kf8 15.Qh7 Ne5 (better is 15...e5!?=) 16.Ne5+= Be5 17.d4 Bf6 18.Rfc1 Ke7 (18...Qd7 19.c4+=) 19.c4+/– Qd7 20.cd5 Qd5 21.Bf3 Qd7 (21...Qf5 22.Qf5 ef5 23.Bb7+/–) 22.Rcb1 Rdb8 23.Ra2 (23.Ra3 g6+/–) 23...a6 (23...a5 24.Rab2 Ra7 25.Rb6+/–) 24.Rab2 (24.Ra5 Ra7+/–) 24...Ra7 25.Rb6 (25.Rc2 b5 26.Rbc1 a5+=) 25...a5 26.Bc6 Qc7 27.Ba4?? e5?? 28.de5 Be5+/– 29.f4 Bf6 30.Rd1 Qb6?? 31.Rd7 Ke6 32.Qe4 Be5 1–0. Trkn – guest3851, ICC, 2004.

3.e3 Nf6 4.a3 Qa5 5.ab4 Qb4 6.Bf6 gf6 7.Nc3 Bg7 8.Ra4 Qc5?? (better is 8...Qb6=) 9.Rc4+– (9...Qc6 10.Qh5+–) 1–0. miehnekort – boaz_mos, Yahoo, 2005.

3.e4 d5 4.ed5 Qd5 5.Nf3 Bg4 (5...Nc6 6.a3=+) 6.Be2 Nf6 7.c4 bc3 (7...Qc6 8.d4=+) 8.Nc3 Qd8 (8...Qd6 9.Qa4 Nc6 10.Nb5=) 9.h3 (9.Qb3 Nbd7=+) 9...Bf3 10.Bf3 Nc6 11.Qb3 (11.0–0 e6=+) 11...Qd7 12.Ne4 Ne4 13.Be4 0–0–0 (better is 13...Rd8!? 14.0–0 A) 14...Qd2?? 15.Rad1 (15.Qb7?! Nb8+/–) 15...Qd7 16.Rd7 Rd7 17.Rc1+–; B) 14...e6=+) 14.0–0 e6 15.Rfc1 (15.Rab1 Kb8+=) 15...Kb8?? (better is 15...Re8+=) 16.Rc6 (16...f6 17.Re6+–) 1–0. de Bouver,Guido – Pietrzak,Wojciech, Orang–Utan Invitational, 2002.

3.Nf3 Nc6 4.e4 (--> 1.b4 c5 2.e4 cb4 3.Nf3 Nc6 4.Bb2).

3.Nf3 Nf6 4.d3 e6 5.e4 d6 6.c3 bc3 7.Nc3 Be7 8.Be2 0–0 9.0–0 Qa5 10.Nd2 b5 11.a3 Bb7 12.Bf3 Nc6 13.Re1 Rab8 14.Qc2 (14.Nb3 Qb6–/+) 14...Nd4 15.Qd1 Qb6 16.Ne2 Nf3 17.Nf3 Rfd8 18.Nfd4 a6 19.Rc1 Ne8 20.f3? (better is 20.Qb3–/+) 20...e5–+ (½–½). Hasler,Ueli – Sandeman,Michael, corr or01–013, 2002.

3.a3 ba3

4.Ba3 Nc6 5.e3 e6 6.Bf8= Kf8 7.Nf3 Nge7 8.Be2 d5 9.0–0 d4 10.Nd4 Nd4 11.ed4 Qd4 12.Nc3 g6 13.Bf3 Kg7= 14.Re1 Nf5 15.Ne4 Nh4 16.c3= Qd3 17.Nc5? Nf3–/+ 18.Qf3 Qf3–+ 19.gf3 b6 20.Ne4 Bb7 21.Nd6 Bf3 22.Re3 Bg4 23.Re4 Bf5 24.Rc4 Rad8 25.Rc6 Rd7 26.c4 Rhd8 27.Nf5 gf5 28.Ra2 Rd2 29.Ra7 R8d7 30.Rcc7? Rc7–+ 31.Rc7 Rc2 32.Rc6 Kf6 33.Rb6 Rc4 34.Rb3 Rg4 35.Kf1 h5 36.Re3 h4 37.Rh3 Kg5 38.Re3 f4 39.Ke2?? Kf5 (40.Rh3 e5–+; better is 39...fe3 40.Ke3 Rg2–+) 0–1. Onkel_Luis – Pangrazzi (1630), ICC, 2003.

4.Ba3 d5 5.Nf3 =+.

4.Ba3 d6 5.e3 Nf6 6.Bb5 Nc6 7.Nf3 g6 8.Nd4 Bd7 9.0–0 Bg7 10.Bb2 0–0 11.Nc6 bc6 12.Be2 Qb6 13.Bd4 c5 14.Bc3 Bc6 15.Na3 Qb7 16.f3 Nd5 17.Rb1? Nc3–+ 18.dc3 Qd7 19.Nc4 Bc3 20.Qd3 Bg7 21.e4 Bb5 22.Qe3?? Bc4 23.Bc4 a5 24.Bb5 Qc7 25.Kh1 Rfb8 26.c4 a4 27.Ra1? Rb5 28.cb5 Ba1 29.Ra1 Qa5 30.Qd3 a3 31.Ra2?? Rb8 32.h3–+ Qb5 33.Qa3 Qb1 34.Kh2 Qe1 35.Qa7 Rb1?? 36.Qe7= Qh1 37.Kg3 Qe1 38.Rf2?? Rb2–+ 39.Qe8 Kg7 40.Kf4 Qf2 41.Qe7 Qg2 42.e5 Qh2 43.Ke4 Re2 44.Kd5–+ Re5 45.Qe5 Qe5 46.Kc4 Qf4 47.Kd5 Qf3 48.Kd6 c4 49.h4 Qg4 50.Kc5 c3 51.Kd5 Qh4 52.Kd6 c2 53.Kd7 (53.Kc6 c1Q 54.Kb5 Qc7 55.Ka6 Qhc4#). WoW – dri, Live Game Caissa's Web, 2005.

4.Ba3 Nf6 5.e3 g6 6.Nf3=+ Bg7 7.Bb2 0–0 8.Be2 d5 9.0–0 Nc6 10.d3 a6 11.Nbd2 Bg4 12.c4 dc4 13.Nc4 e6 14.Bc3 Nd5 15.Bg7=+ Kg7 16.Qb3 Qb6?? 17.Nb6+– Nb6 18.Qb6 Rab8 19.Rac1 Rfd8 20.d4 Bf5 21.Nh4 Be4 22.Nf3 Bd5?? 23.Ne5 Ne5 24.de5 Rbc8 25.Rc8 Rc8 26.Bf3 Bf3 27.gf3 h5 28.f4 h4 29.Qb7 Rc2 30.Qa6 h3 31.Qd3 Rb2 32.e4 Rb3 33.Qh3 Rh3 34.Kg2 Rh4 35.f3 Rf4+/– 36.Rf2 Rh4 37.Rd2 Rh8 38.Rd7 Ra8 39.Kg3 Ra2 40.h3 Rb2 41.h4 Rb1 42.Kg4 Rg1 43.Kh3 Rh1+= 44.Kg2 Rh4 45.Rd1 Rh8 46.Rg1 Rb8 47.Kf2 Rb2= 48.Ke3 Rb3 49.Kf4 Ra3 50.Rg2 Rb3 51.Rd2 Ra3 52.Re2 Rb3 53.Rg2 Ra3 54.Rh2 Rb3 55.Rc2 Rb1 56.Rc3 Rh1 57.Kg3 Rg1 58.Kf4 Ra1 59.Rc2 Ra3 60.Rg2 Rb3= 61.Rg3 Ra3 62.Kg5 Rb3 63.f4?? Rg3–+ 64.Kh4 Re3 (65.Kg5 Re4–+) 0–1. Onkel_Luis (1700) – ARISoz (1745), ICC, 2003.

4.Ba3 g6 5.e3 Bg7 6.d4 Nc6 7.Nf3 Nf6 8.Be2 0–0 9.0–0 d5 10.Nbd2 e5?? 11.Bf8+– Qf8 12.de5 Ng4 13.Rb1 Nge5 14.Ne5 Ne5 15.c4 dc4 16.Nc4 b6?? 17.Ne5 Be5 18.Bf3 Rb8 19.Qa4+/– Qe7 20.Rfd1 Bf5 21.Rbc1 h5 22.Rc2?? Bc2 23.Qc2 Qc5 24.Qd3 Kg7 25.Qe4 Bf6 26.Rd5 Qc3 27.Rd3?? Qa1 28.Rd1=+ Qe5 29.Qb1 Rd8 30.Rc1 Be7 31.Qa2 Bd6 32.g3 Qf6 33.Kg2 Bc5 (34.Qa6 Be3–/+) 0–1. Onkel_Luis (1625) – ARISoz (1805), ICC, 2003.

4.Na3 d5 =+.

3.e3 Nc6

4.Nf3 e6 5.Be2 Nge7 6.0–0 f6 7.c3 Qc7 8.cb4 Nb4 9.Bc3 Nbc6 10.d4 d5 11.Bd3 Bd7 12.Qc2 (12.Na3 a6=+) 12...g6 13.a4 0–0–0 (Better is 13...Rc8=+) 14.Na3 a6 15.Qd2 Bg7 (15...Re8+=) 16.Qe2 f5 17.Ba6 ba6=+ 18.Qa6 Kb8?? 19.Rab1 1–0. Slavisa2 – CharlieChess, Live Game Caissa's Web, 2004.

4.Nf3 e6 5.Be2 Nf6 6.0–0 Bc5 7.d4 Bd6 8.c4 bc3 9.Nc3 b6 (9...Bb4 10.d5 Bc3 11.Bc3 Nd5 12.Bg7=) 10.Qc2 (10.d5!? Na5 11.e4+/–) 10...Bb7 11.Nb5 Bc7 (11...Be7 12.d5 Nb4 13.Qc7 Bd5 14.a3–/+) 12.Ba3 Nd5 13.Nd6 Bd6= 14.Bd6 e5? 15.de5 Ne5?? 16.Ne5 Rc8 17.Qd2 Nf6 18.Ba3 Rc7 19.Qd6 Nd5 20.Rfc1 1–0. slavisa11 – SirCharles, Live Game Caissa's Web, 2004.

4.Nf3 Nf6 5.d4 d5 6.Nbd2 Bg4 7.Bb5 e6 8.h3 Bf3 9.Nf3 a6 10.Ba4 b5 11.Bb3 Bd6 12.Qe2 0–0 13.0–0 Qc7 14.c3 e5 (14...bc3!? 15.Bc3 Ne4–/+) 15.cb4 e4 16.Nd2 (Better is 16.Ne5 Ne5 17.de5 Be5 18.Rfd1–/+) 16...Bh2 (Better is 16...Nb4 17.Ba3 Qa5–+) 17.Kh1= Bd6 18.a3 Rfe8 19.Rac1 Rab8 20.a4? ba4 21.Ba4=+ Rb6 22.Rc6 Rc6 23.Bc6 Qc6 24.Rc1 Qb5 25.Kg1?? Qe2–+ (26.Bc3 Rc8–+) 0–1. slavisa99 – SirCharles, Live Game Caissa's Web, 2004.

4.f4 e6 5.Bc4 (5.Nf3 d6=+) 5...Nge7 (5...d5 6.Bd3–/+) 6.Bb3 f6 (6...Nf5 7.Nf3–/+) 7.Nf3 d5 8.0–0 a6 9.c3 Ng6 (9...Nf5 10.Bc2=+) 10.cb4 Bd6 (10...Bb4!? 11.Nd4 0–0=+) 11.a3= Bd7 12.d4 Bc8 13.Nc3 0–0 14.Qe2 Re8 15.Qf2 e5?? 16.f5?? Nge7 17.Nh4?? Qd7?? 18.e4 g6?? 19.fg6 Ng6 20.Ng6 hg6 21.Nd5 Qg7 22.Nf6 Kf8 23.Nh5 Ke7 24.Ng7 Rf8 25.Qh4 Kd7 26.Qg5 Be7 27.Be6 Kc7 28.Qd2 Rh8 29.d5 Be6 30.Rac1 Bd6 31.Ne6 Kb8 32.dc6 bc6 33.Qd6 Ka7 34.Rc6 Rh4 35.Qc7 1–0. Slavisa2 – CharlieChess, Live Game Caissa's Web, 2004.

4.g3 e5 5.Bg2 Bc5 (5...d5 6.Ne2–/+) 6.Ne2 Nf6 7.c3 (7.d4 ed4 8.ed4 Bb6=+) 7...d6 (7...d5 8.d4 ed4 9.cd4–/+) 8.cb4 Bb4 9.Qb3 Bf5 10.Bc6= bc6 11.Qb4 Qd7 12.Nbc3 Bh3 13.Qh4 Bg2 14.Rg1 Bf3 15.h3 0–0 16.Ne4?? Be4 17.f3? Bd3 18.f4 Rab8 19.Bc3 c5 20.g4 Qb5 21.fe5 de5 22.Be5 Rb6 23.g5? Be2?? 24.gf6+– g6 25.Qh6 Rf6 26.Bf6 1–0. slavisa3 – Charliechess1, Live Game Caissa's Web, 2004.

3.e4 d6

4.a3 ba3 5.Na3 (--> 1.b4 c5 2.e4 cb4 3.a3 ba3 4.Na3 d6 5.Bb2).

4.a3 Nc6 5.ab4 Nb4 6.Nf3 Nf6 7.Bb5 Nc6 8.Qe2 Bg4 9.0–0 g6 10.Bf6 ef6 11.Qc4 Rc8 12.Ra7 Qb6 13.Ra3 Bg7 14.Nc3 0–0 15.Nd5 Bf3?? (better is 15...Qd8+=) 16.Nb6+– (16...Bg4 17.Nc8 Rc8 18.Qa4+–; 16.Rf3?! Qd8+=; 16.gf3?! Qd8+=) 1–0. pierredziel – tomh_03, Yahoo, 2005.

2.Bb2 Nc6

3.b5 Na5 +=.

3.b5 Nd4 =.

3.Nc3 Nf6 4.a3 (4.b5 Ne5=) 4...d6 (4...cb4 5.ab4 Nb4 6.e4+=) 5.Nf3 (5.bc5 dc5 6.e4 e5=) 5...e5 (5...cb4 6.ab4 Nb4 7.e4+=) 6.d3 (6.b5 Nd4=) 6...Be7 (6...cb4 7.ab4 Nb4 8.e4–/+) 7.e4 (7.bc5 dc5 8.e4 0–0+=) 7...0–0 (7...cb4 8.ab4 Nb4 9.Be2–/+) 8.Be2 (8.bc5 dc5 9.Be2 a6+=) 8...Bg4 (8...cb4 9.ab4 Nb4 10.0–0–/+) 9.0–0 (9.b5 Nd4=) 9...Bf3 (9...cb4 10.ab4 Nb4 11.h3–/+) 10.Bf3+= Nd4 (10...cb4!? 11.ab4 Nb4+=) ½–½. Tudor,Ioan – Tudor,Alin Ciprian, Romania, 2000.

3.bc5 e5 (--> 2.bc5 e5 3.Bb2 Nc6).

3.Nf3 cb4 4.e3 =+.

3.Nf3 Nf6 4.e3 d5 5.Bb5 Bd7 6.0–0 e6 7.d3 Bd6 8.Nbd2 Nb8 9.Bd7+= Nbd7 10.e4 Qc7 11.Re1 de4= 12.de4 Ne5 13.Ne5 Be5 14.Be5 Qe5 15.Nc4 Qc7 16.e5 Nd5 17.Nd6+– Ke7 18.c4 Nb4+/– 19.Qh5 Raf8 20.Qg5+– Kd7 21.Rad1 Kc6?? 22.Nb5 f6 23.ef6 (23...Rf6 24.Nc7+–; 23.Na7 Kb6 24.ef6 gf6 (24...Ka7?? 25.fg7 Rhg8 26.gf8Q Rg5 27.Re6+–) 25.Re6 Ka7 26.Rf6 Rd8–+ (26...Na2? 27.Ra1+/–)) 1–0. Quach,Charles (2050) – Romero,Michel (1740), Paris Apsap op1, 1993.

2.b5 Qa5

3.c4 Qb4 4.Qc2 Qc4?? 5.Qc4+– d5 (5...d6 6.d4+–) 6.Qc5 Bd7 (6...Nd7 7.Qd5 e5 8.Nf3+–) 7.Qc7 b6 8.Qb7 Nc6 9.bc6 Bc6 10.Qc6 Kd8 11.Qa8 Kd7 12.Qf8 Kc6 13.Qg7 (13.Qc8 Kd6 14.d4 b5 15.Ba3 b4 16.Bb4) 13...Nf6+– 14.Qh8 (14.Qh8 Kc7 15.Ba3+–) 1–0. DEFFM – GuestZKKJ, freechess.org, 2018.

3.e3 a6 4.a4 ab5 (4...Nf6 5.Bb2=) 5.Bb5+= Nf6 (5...Nc6 6.Nf3+=) 6.Nf3 (6.Bb2 Nc6+=) 6...h6 (6...g6 7.0–0=) 7.0–0+= Qb4 (better 7...g6!?+=) 8.Ba3+– Qe4 (8...Qg4 9.Bc5 Qh5 10.Bb6+–) 9.Bc5 Na6 (9...Qf5 10.d4+–) 10.d3 Qg4 11.h3 (11.Bd4 Nc7+–) 11...Qg6 (11...Qh5 12.Bd4+–) 12.Ne5 Qf5 (12...Qg5 13.Bd4+–) 13.Bd4 Nc7 14.Nc3 Nb5?? (better 14...e6+–) 15.Nb5 (15.ab5?! Ra1 16.Qa1 d6+–) 15...Kd8 (15...d6 16.Nc7 Kd8+–) 16.Bb6 (16.Bb6 Ke8 17.Nc7 Kd8 18.Nf7) 1–0. GuestSFJC – GuestZYTV, freechess.org, 2018.

3.e3 d5 4.c4 Nf6 5.a4 (5.Bb2 Bg4 6.Qb3 Qd8=) 5...e6 6.Bb2 Be7 (6...Nbd7 7.Nf3=) 7.cd5 (7.Nf3 0–0=) 7...ed5 8.Bc3 Qc7 (8...Qd8 9.Nf3=) 9.Nf3 Bg4 (9...0–0 10.Be2=) 10.Be2 Ne4 (10...Nbd7!?=) 11.Be5 (11.Bg7 Rg8 12.Bb2 Be6+–) 11...Qd7 (11...Bd6 12.Bg7 Rg8 13.Bb2+=) 12.Bg7+– Rg8 13.Bb2 d4 (13...c4 14.d3 cd3 15.Bd3+–) 14.Ne5 (14.d3!? Nf6 15.ed4 cd4 16.Nbd2+–) 14...Be2+= 15.Qe2 (15.Ke2 Qf5 16.Nf3 Rg2–+) 15...Qe6? (better 15...Qd5 16.f4 Bh4 17.Kf1 Bf2+=) 16.ed4+– f5 (16...Nf6 17.0–0+–) 17.0–0 (17.d3 cd4 18.Bd4 Bb4 19.Kf1 Nf6+–) 17...Bd6 (17...Nd7 18.Qh5 Kd8 19.d3+–) 18.Qh5 Kd8 19.Nf7 Kc7 20.dc5 (20.Nd6 Kd6 21.d3 Ng5 22.dc5 Kc5+–) 20...Bc5 21.d4 (better 21.Qh7 Nd7 22.Be5 Kb6 23.d4+–) 21...Be7?? (21...Nf6 22.Ng5 Qd5 (22...Nh5?? 23.Ne6 Kd6 24.Nc5+–) 23.Qf7 Qf7 24.Nf7 Bb4+–) 22.Rc1 Kd7 (22...Nc6 23.bc6 Qg6 24.Qg6 Rg6 25.Ne5 bc6 26.f3+–) 23.Ne5 (23.Ne5 Kd8 24.d5 Rg2 25.Kg2 Qg8 26.Kf1+–) 1–0. GuestQMQJ – cresox, freechess.org, 2018.

3.e3 d6 4.a4. DEFFM – GuestCHCB, freechess.org, 2016.

3.e4 a6 4.a4 (4.Nc3 e6+=) 4...Qb4 (4...Nf6 5.Nc3=) 5.Nc3+= ab5 (5...Qa5 6.Nf3+=) 6.Bb5 e6 7.Nge2 Nf6 8.Ba3 (8.a5 Ra5 (8...Ne4? 9.Ra4+–) 9.Rb1 Qb1 10.Nb1 Rb5+=) 8...Qa5 9.0–0 Qc7 (9...Nc6 10.Nc1+=) 10.f4+– e5 (10...Nc6 11.e5 Ng4 12.Rb1+–) 11.fe5 Qe5 12.Rf5 Qc7 13.e5 Ng4 14.Nf4 Ne5?? (better 14...Nh6 15.Ncd5 Qa5+–) 15.Ncd5+– Qd8 (15...Qd6 16.d4 Nbc6+–) 16.Re5 (16.Re5 Be7 17.Re7 Qe7 18.Ne7+–) 1–0. DEFFM – GuestYVWC, freechess.org, 2018.

2.b5 a6

3.ba6 Ra6 4.Bb2 (4.Nf3 d5=) 4...Nf6 5.d4 (5.Bf6 Rf6 6.Nc3 d5=) 5...cd4 6.Bd4 Nc6 7.e3 Ra8 8.Bb2 (8.Bf6 gf6 9.Nf3 Qa5 10.Qd2 Bg7=) 8...e5=+ 9.Bc4 (9.Nf3!?=+) 9...d5–/+ 10.Bb5?? (10.Be2 Qb6 11.Bc1 Bb4 12.c3 Bc5–/+) 10...Bd7 (better is 10...Qa5 11.Nc3 Ba3–+) 11.Bc6=+ Bc6 12.Be5 Be7 (12...d4 13.Nf3 Bf3 14.Qf3 Qa5 15.c3 Qe5 16.Qb7 Rb8 17.Qc6 Kd8 18.cd4 Qa5 19.Kd1 Rb2–+) 13.f3 (13.Nf3 0–0+=) 13...0–0= 14.Bd4 Bd6 15.Ne2 Qe7 16.0–0 Bc5 (16...b5!?=) 17.Bc5 Qc5 18.Qd4 (18.Nd4 Bb5 19.Re1 Bc4+=) 18...Qd4 (18...Qc2 19.Nbc3=) 19.ed4 (19.Nd4 Rfc8+/–) 19...Nd7 20.Nd2 Nb6 21.Nc3 (21.Rfb1 Nc4 22.Nc4 dc4+/–) 21...Rae8 (21...Ra3 22.Ndb1 Raa8 23.Re1+=) 22.Rfe1+/– f5 23.Kf2 f4 24.Re8 Re8 25.Re1 Rf8 26.h3 Nd7 27.Re7 Ra8 28.a4 (better is 28.Nd5 Kf8 29.Ne4 Bd5 30.Rd7+/–) 28...Ba4?? (better is 28...Kf8 29.Re1 Nb6=) 29.Na4+– Ra4 30.Rd7 Ra2 (30...Rd4 31.Ke2+–) 31.Ke2 Rc2 32.Rb7 h6 (32...Rc1 33.Rd7+–) 33.Rd7 Rc4 (33...Rc1 34.Rd5 Rg1 35.Kf2+–) 34.Rd5 (better is 34.Nc4 dc4 35.Kd2+–) 34...Kf7 (34...Rc1 35.Rd7+–) 35.Rc5 (better is 35.Nc4 Ke6 36.Rd6 Ke7 37.d5+–) 35...Rd4 36.Rc7 (36.Ne4 g6+–) 36...Kf6 37.Rc6 (37.Ne4 Kg6+–) 37...Kf7 38.Ne4 g5 (38...Rd7 39.h4+–) 39.Rc7 (better is 39.Rh6 Kg7 40.Rh5+–) 39...Kg6 40.Rc2 h5 (40...Ra4 41.Kd3+–) 41.Rd2 (41.Rc6 Kg7 42.Ng5 Ra4+–) 41...Rc4 (41...Rd2 42.Kd2 Kf5 43.Kd3+–) 42.Rd6 Kf5 (42...Kg7 43.Ng5 Rc2 44.Kd3 Rg2 45.Ne6 Kh7 46.Nf4+–) 43.Rd5 Kg6 (43...Ke6 44.Rg5 Rc2 45.Kd3 Rb2+–) 44.Rd6 (44.Rg5!? Kh6 45.Rf5 Rc2 46.Nd2 Ra2+–) 44...Kf5 45.Rf6 (45.Rh6 Rc2 46.Kd3 Ra2+–) 45...Ke5 46.Rd6 (46.Rh6 Rc2 47.Kd3 Rg2 48.Rh5 Rh2+–) 46...g4?? (better is 46...Re4 47.fe4 Kd6–+) 47.fg4 (better is 47.Rh6 gf3 48.gf3+–) 47...Re4–+ 48.Kf2 hg4 (better is 48...Kd6 49.gh5 Ke6–+) 49.Rh6 gh3 50.gh3 Re3 51.Rh7 Ke4 52.Re7 Kf5 53.Re3 fe3 54.Ke2 Kf4 55.Ke1 Kf3 56.Kf1 e2 57.Ke1 Kg3 58.h4 Kh4 59.Ke2 ½–½. slavisa3 – Charliechess1, Live Game Caissa's Web, 2004.

3.ba6 Na6 4.e3 Nb4 5.a3 Nc6 6.c4 (6.Bb5 e5=) 6...Nf6 7.Bb2 e6 8.Ne2 (8.Nf3 d5=) 8...Be7 9.Ng3 0–0 10.Bd3 d5 11.Bc2 (better 11.Qc2!?=+) 11...dc4–/+ 12.Qe2 b5 13.a4 (13.0–0–+) 13...Ba6 (better 13...Nb4 14.Qd1 ba4–+) 14.ab5=+ Bb5 15.Nc3 (15.Ra8 Qa8 16.Bf6 Bf6=+ (16...gf6?? 17.Qh5 f5 18.Nf5+–)) 15...Ba6 (15...Nb4 16.0–0 Bc6 17.Ba4–/+) 16.0–0 Nb4 17.Be4 (17.Ba4–/+) 17...Nfd5 (17...Ne4 18.Nge4 Nd3 19.Rfb1–+) 18.Nd5 (18.Qf3!?=+) 18...ed5–/+ (18...Nd5?! 19.Qg4 Bf6 20.Qh3=+) 19.Bf3 (19.Qg4 Bf6 20.Bf6 Qf6–/+) 19...Bf6 (19...c3 20.Ra6 cb2 21.Ra8 Qa8 22.Rb1–+) 20.Bf6 (20.Bc3 Re8–/+) 20...Qf6–+ (20...gf6?! 21.Nf5 Kh8 22.e4=) 21.Rfc1 Rfd8 (21...c3 22.Ra6 Ra6 23.dc3–+) 22.Kf1? (22.Nh5!? Qd6 23.e4 Nd3–+) 22...Nd3 (better 22...c3 23.Ra6 cd2 (23...Na6?! 24.dc3 Nc7 25.Kg1–+; 23...Qa6?! 24.dc3 Nd3 25.Rd1–+) 24.Rc5 Na6–+) 23.Rc4?? (better 23.Rc3–+) 23...Bc4 (better 23...Qa1 24.Qd1 Bc4 25.Kg1–+) 24.Ra8 (24.Rd1 Nb2 25.d3 Nd1–+) 24...Ra8 25.Kg1 Ra1 26.Nf1 0–1. aravind555 (1770) – Bibintheone (1655), lichess.org, 2020.

3.Nc3 ab5 4.Nb5 e6 (4...d5 5.Bb2=) 5.Bb2 Nc6 6.e3 h5. Sie – Cpu, AI Factory's Chess, 2016.

3.c4 Nf6 4.Bb2 g6 (4...ab5 5.cb5 d5 6.e3=+) 5.e3 Bg7 6.Be2 (6.d4 ab5 7.cb5 cd4 8.Bd4 0–0=) 6...0–0 7.Nf3 b6 8.0–0 ab5 9.cb5 Bb7 10.d4 d6 11.Nc3 e6 12.Qb3 (12.dc5 dc5 13.Qc2 Qe7+=) 12...Nbd7= 13.Rfd1 cd4 14.ed4 Nd5 15.Nd5 Bd5 16.Qb4 Nf6 17.a4 Qd7 18.Nd2 Rfc8 19.Rdc1 Bh6 20.Rc8 Qc8 21.Nc4 Bc4 22.Bc4 Bd2 23.Qb3 d5 24.Bd3 Qc7 25.g3 h5 26.Qd1 Bh6 27.Ra3 Bf8 28.Rc3 Qa7 29.Bc2 Qb7 30.Qf3 Kg7 31.Qf4 Rc8 32.Rf3 Rc2 33.Qf6 Kg8 34.Rb3 Qc7–/+ 35.Qf3?? Rb2!–+ 36.Rc3 Qd7 37.Rc6 Rb4 38.Qf4 Ra4 39.Rb6 Rb4 40.Qb8 e5 41.Kg2 e4 42.Qe5 Qf5 43.Qe8 Rb2 44.Kh1 Qf3 (45.Kg1 Rb1) 0–1. Labahn,Wolfgang – Koch,Markus, Paderborn GER, 1988.

3.e3 d5 4.Bb2 c4 5.a4 ab5 6.ab5 Ra1 7.Ba1 Qa5 8.Nc3 Bd7 9.Nd5 Bb5 10.Bc3 Qd8 11.Qh5 g6?? (better 11...e6 12.Nc7! Qc7 13.Qb5 Nc6 14.Bc4 Nf6+–) 12.Nc7!! Qc7 13.Qb5 Nd7 (13...Qd7 14.Qe5 Nf6 15.Qb8 Qd8 16.Qb7+–) 14.Bh8 1–0. DEFFM – GMDirham, freechess.org, 2019.

3.e3 Nf6 4.Bb2 e6 5.a4 Be7 6.c4 0–0 7.Nc3 d5 8.cd5 ed5 9.Qc2 d4 10.ed4 (10.Ne4 de3 11.fe3 Ne4 12.Qe4 Re8=) 10...cd4–/+ 11.Ne4 Ne4 12.Qe4 Bf6 13.Qd3 Re8 14.Be2 (14.Ne2 Nd7 15.Kd1 Ne5–+) 14...Qe7 (14...ab5 15.Qb5 Ra5–+) 15.Nh3?? (better 15.Ba3 Qc7 16.Rc1–/+) 15...Bf5–+ 16.Qf3 Be4 17.Qg4 (17.Qa3 Bg2 18.Qe7 Re7–+ (worse 18...Be7 19.Rg1 Bh3 20.Bd4–+)) 17...d3 18.Bf6 Qf6 19.0–0 (19.Rc1 Bf5 (19...de2?! 20.Qe4 Nc6 21.Qb1 ab5 22.Qb5–+) 20.Qf4 Qb2–+) 19...de2 (better 19...Bf5 20.Rae1 Bg4 21.Bg4 Re1 22.Re1–+) 20.Rfe1 (20.Qe2 Bc6 21.Qd1–+) 20...Bf5 21.Qf3 (21.Qc4 Qa1! 22.Ra1 e1Q 23.Re1 Re1 24.Qf1 Rf1 25.Kf1 ab5 26.a5–+) 21...Qa1! 22.Qe2 (22.Ra1 e1Q) 22...Qe1 23.Qe1 (23.Qf1 Qf1 24.Kf1 Bd3 25.Kg1 Re1) 23...Re1 0–1. GuestMZVV – GuestRDRG, freechess.org, 2017.

3.e4 Qb6 4.Nc3+= ab5 5.Bb5 Ra5 (5...Qg6 6.Bf1=) 6.a4 (6.Bc4 Qg6 7.Nf3 d6+=) 6...Nf6 (6...Qg6 7.g3=) 7.Nf3+= e6 (7...Qe6!? 8.d3 Nc6+–) 8.Ne5+– Bd6 (8...Qc7!? 9.Nc4 Ra8+–) 9.Nc4+– (9.Nc4 Qc7 10.Na5 Qa5 11.Rb1+–) 1–0. DEFFM – GuestVMJZ, freechess.org, 2018.

3.e4 d6 4.Bb2 (4.Nc3 Nf6=) 4...ab5 5.Bb5 Nc6 6.Nf3 Nf6 (6...e5 7.Nc3=) 7.e5+= Ng4 8.0–0 Nge5 (8...de5 9.Bc6 bc6 10.Ne5 Ne5 11.Be5+=) 9.Be5 de5 10.Ne5 Qc7 11.Bc6 bc6 12.Qf3 Qe5? (better 12...Be6+–) 13.Qc6+– Kd8 14.Qa8 Qa1 (14...e6 15.Qa5 Qc7 16.Qc3+–) 15.Qa5 Ke8 16.Qb5 Kd8 17.Qb6 Ke8 18.Nc3 Qf1 19.Kf1 f6 (19...e5+–) 20.Qb8 Kd8 21.Nb5 e5 22.Qc7 (22.Qc7 Ke8 23.Qc8 Ke7 24.Nc7+–) 1–0. GuestWHFK – GuestKTKJ, freechess.org, 2018.

3.e4 e5 4.c4 d5? (4...ab5 5.cb5 Nf6 6.Nc3=+) 5.ed5 (5.cd5!? Nf6 6.Nc3+–) 5...Bd6 (5...ab5 6.Bb2 Nf6 7.Nc3 bc4 8.Bc4=) 6.d3 (6.Nc3 Nf6+–) 6...Nf6 (better 6...ab5 7.cb5 Nf6=) 7.h3?? (7.Nc3 0–0 8.Nf3 Bf5+=) 7...h6?? (7...ab5 8.Nc3 bc4 9.dc4=+) 8.g3?? (better 8.Nc3!?+=) 8...0–0 (8...ab5 9.Nc3 bc4 10.dc4–/+) 9.a4 (9.Nc3 e4 10.de4 ab5 11.Nb5 Ne4–/+) 9...Re8 (9...ab5 10.Bg2 Re8 11.cb5 e4=+) 10.Ra2? (better 10.Nc3 e4 11.Nge2 ed3 12.Qd3 ab5 13.cb5=+) 10...e4–+ 11.Be3 ab5 12.cb5? (12.Nc3 ed3 13.Bd3 bc4 14.Bc4 Bg3–+) 12...Qa5 (12...Nd5 13.Re2 Bf5 14.Bg2 Ne3 15.Re3 ed3 16.Re8 Qe8 17.Kf1–+) 13.Bd2?? (13.Qd2 Nd5 14.Qa5 Ra5–+) 13...Qb6 (better 13...ed3 14.Ne2 Qd8–+ (14...Re2?! 15.Be2 de2 16.Qe2–+)) 14.f3 (14.de4 Ne4 15.Be2–+) 14...Bg3 15.Ke2 ed3 (better 15...c4 16.Qe1 ed3 17.Kd1 Be1 18.Be1 Nd5–+) 16.Kd3 Bf5 17.Kc3 Nd5 18.Kc4 (18.Kb2 Be5 19.Kc1 Nb4–+) 18...Nf6 (18...Qe6 19.Bf4 Nf4 20.Kc5 Rc8 21.Kb4 Qa2 22.Qd8 Rd8 23.Ne2 Nd3 24.Kc3 Ra4 25.Ng3 Rc4) 19.Kc3 (19.Kb3 Nc6 20.Ne2–+) 19...Be5 20.Kb3 Qe6 (20...Be6 21.Ka3 c4 22.Nc3 Qc5 23.Kb2 Qb4 24.Kc1 Bc3 25.Ne2 Bd2 26.Qd2–+) 21.Bc4 Nd5 22.f4 (22.Ne2 Bd3!! 23.Qc1 Qf5 24.Bd5 Be2–+) 22...Bf6 23.Nc3 (23.Ne2 Bd3!! 24.Na3 Ra4–+) 23...Bc3 24.Bc3 Rd8 (better 24...Ne3 25.Qe2 Nc4 26.Qc4 Qc4 27.Kc4 Be6 28.Kd3 Ba2–+) 25.Qf3 (25.Rd2 Qe4 26.Qe2 (26.Rd5 Rd5 27.Qe2 Qb1 28.Bb2 Rd1–+) 26...Qb1 27.Bb2–+) 25...g6?? (25...Be4 26.Qg3 Nc3 27.Be6 Na2 28.Qe1 Bh1 29.Bc4–+) 26.Rd2?? (better 26.Re2 Qc8 27.Bd5+–) 26...Qe3?? (26...Be4 27.f5 Qe7–+ (27...Bf3?! 28.fe6 Bh1 29.e7–/+)) 27.Qe3+– Ne3 28.Rd8 Kh7 29.Rh8 1–0. patrick317 – tara29, gameknot.com, 2017.

3.e4 Nf6 4.e5 Nd5 =.

3.Bb2 ab5

4.c4? b4 (better 4...bc4!? 5.e4 b5–+) 5.e3 Qc7 6.Nf3 e6 7.d4 f6 8.dc5 Bc5 9.Nd4 Ne7 10.Be2 (10.Qh5!? Ng6 11.Bd3=) 10...0–0=+ 11.0–0 Nbc6 12.Nb5 Qb8 13.Nd2 b6 14.Nf3 Ng6 15.Bd3 Ba6 (better 15...f5!?=+) 16.Bg6+= hg6 17.Nfd4 (better 17.Qd7!? Qc8 18.Qd3+=) 17...Ne5 18.Qc2 (18.Qe2 Rc8 19.Rfc1 Qb7=+) 18...Bb5 (18...Rc8!?–/+) 19.Nb5 Kf7 20.Rfd1 Rh8 21.f4?? (21.h3 Rd8=) 21...Ng4 (better 21...Be3 22.Kf1 Bf4–/+) 22.Rd7= Kf8 (22...Kg8 23.Nc7 Qc8 24.Qd3 Rh2 25.Na8–/+) 23.Qg6?? (23.Nc7 Be3 24.Kf1+–) 23...Be3= 24.Kf1 Qf4 25.Ke2? (better 25.Ke1!? Qf2 26.Kd1 Qf1 27.Kc2 Qf5 28.Qf5 ef5 29.Nc7=) 25...Qc4–/+ 26.Kf3 (26.Ke1 Bf2 27.Kd2 Be3 28.Ke1 Bf2 29.Kd2 Be3 30.Ke1=) 26...Nh2?? (better 26...Qc6 27.Qe4 Qe4 28.Ke4 Rh2–/+) 27.Ke3= Ng4 28.Kd2?? (better 28.Kf3 Qc6 29.Qe4 Nh2 30.Ke3 Ng4 31.Kf4 g5 32.Kf3 Qd7 33.Qa8 Kf7 34.Qa7 Qa7 35.Na7+=) 28...Qf4–+ (28...Qf4 29.Kc2 Rc8 30.Bc3 Qf5 (30...Rc3? 31.Nc3 Ne3 32.Kd3 Qc4 33.Ke3 Qc3 34.Ke2 Qe5 35.Kf3 Qc3 36.Qd3+–) 31.Qf5 ef5–+) 0–1. GuestDNWV – GuestHDMR, freechess.org, 2017.

4.e3 b4 5.c3 (5.a3 Nc6=+) 5...Nc6 6.a3 (6.Nf3 d5=+) 6...bc3 (6...ba3 7.Ra3 Ra3 8.Na3–/+) 7.Nc3 e6 (7...Nf6 8.Nf3–/+) 8.Nb5 (8.Bb5 d5–/+) 8...f6 (8...d5 9.Qf3–/+) 9.d4=+ d6 (9...d5!?=+) 10.dc5= dc5 11.Qh5 (11.Qd8 Kd8 12.Rd1 Ke7=) 11...g6=+ 12.Qh6 0–1. DEFFM – Apin, freechess.org, 2016.

3.c4 ab5=+

4.cb5 Ra3?? 5.Na3 (better 5.Ba3 d6 6.Nc3+–) 5...Nc6 (5...d5+–) 6.bc6 c4 (6...dc6 7.Qc2+–) 7.cb7 (better 7.cd7 Bd7 8.Nf3+–) 7...c3 (7...Bb7 8.Nc4 Bd5 9.Ne3+–) 8.bc8Q (better 8.b8Q e6 9.Nb5 Bc5+–) 8...Qc8 9.Qb3 cd2 10.Bd2 Qa8 11.Nb5 Qg2 12.Nc7 Kd8 13.Qb8 1–0. GuestFGDQ – GuestFTHQ, freechess.org, 2020.

4.cb5 Qa5 5.Nc3 b6 6.e3 (6.Nf3 Nf6 7.e4 Bb7=) 6...e6= 7.Be2 (7.Qg4 Nf6 8.Qg3 d5=) 7...Bb7 8.Nf3 (8.e4 Nf6 9.Bf3 d6=+) 8...d5=+ 9.0–0 Nf6 (9...Nd7 10.Qc2=+) 10.Qc2 1–0. DEFFM – liderdelnorte, freechess.org, 2019.

4.cb5 Qa5 5.Nc3 Nf6 6.e4 e5 7.Bc4 d6 (7...Be7 8.Nge2=) 8.Qb3+= Bd7 (better 8...Qc7!?+=) 9.Bf7 Ke7 10.Nf3 g5? (10...Bg4!?+–) 11.Bd5 (11.Ng5 Bh6 12.d3 Bg5 13.Bg5 h6+–) 11...Bh6 (11...g4 12.Ng5 h6 13.Bg8 Rg8 14.Qf7 Kd8 15.Qf6 Be7 16.Nf7 Ke8 17.Nd6 Bd6 18.Qd6+–) 12.Bb7 Ra7 13.Bd5 Nd5 (13...g4 14.Nh4+–) 14.Nd5 (14.ed5?! g4 15.Ng1 Kd8+–) 14...Kd8 15.a4 Be6 (15...g4 16.Bb2 Ra8 17.Bc3+–) 16.0–0 (16.Bb2 Rf7 17.h3 Qa8+–) 16...Nd7? (16...g4 17.Nh4+–) 17.Bb2 (better 17.d3 Rg8 18.Bd2+–) 17...Nb6?? (17...g4 18.Bc3 Qc7+–) 18.Bc3 Qc3 1–0. GuestWRSB – GuestBGCJ, freechess.org, 2018.

4.cb5 Qa5 5.e3 e5 6.Bb2 (better 6.Bc4 d6 7.Nc3=) 6...Bd6 (6...d6 7.Bc4=) 7.a4 (7.f4+–) 7...b6? (7...Nf6 8.Na3+=) 8.Nf3 (8.Na3 Qa7 9.Nc4 Be7 10.Be5 Nf6+–) 8...Bb7 (better 8...f6!?+=) 9.Ne5+– Be5 10.Be5 Qb4?? (better 10...Nf6+–) 11.Bg7 Nc6 (11...Nf6 12.Bh8 Qh4 13.d4+–) 12.Bh8 (better 12.bc6 Bc6 13.Nc3 Nf6 14.Bh8 Ke7+–) 12...Na5 13.Bc3 Qg4 1–0. GuestHDRX – GuestWCLM, freechess.org, 2018.

4.cb5 Qb6 5.e3 Nf6 6.a4 d5=+ 7.Bb2 e6 8.Nf3 Be7 9.Be2 0–0 10.0–0 Nbd7 11.Qc2 c4 (11...Bd6 12.d4=) 12.d3 Nc5 (better 12...cd3!? 13.Bd3 Qc5+=) 13.dc4+– dc4 14.Bc4 Nce4 (14...Rd8 15.Bd4+–) 15.Nbd2 (15.Bd3 Nc5 16.Bf6 Bf6+–) 15...Nd6 (15...Nd2 16.Qd2 Qc5 17.Qd4+–) 16.Be2 (16.Bd3 Bd7+–) 16...Bd7 17.Qb3 (17.Bd4 Qd8+–) 17...Rac8 (17...Rfc8 18.Rfd1 Qc7 19.Ne5+–) 18.Nc4 (18.a5 Qc5 19.a6 ba6 20.ba6 Qa7+–) 18...Qc5 (18...Nc4 19.Bc4 Qa5 20.Rfd1+–) 19.Nfe5 (19.Nd6 Qd6 20.Rad1+–) 19...Be8? (19...Nc4 20.Qc4 Qd6 21.Qd3+–) 20.Bd4 (20.Ba3!? Qc7 21.Nd6 Bd6+–) 20...Qc7 21.b6 (21.Nb6 Rd8+–) 21...Qb8 22.a5 Nc4 (22...Nd5 23.Bf3+–) 23.Nc4 (23.Bc4 Bd6 24.f4 Ne4+–) 23...Bc6+– 24.Be5 Qa8 25.Nd2 (25.a6 ba6 26.Nd6 Bd5 27.Nc8 Bb3 28.Ne7 Kh8 29.Bf6 gf6+–) 25...Nd5 (25...Nd7 26.Bd4+–) 26.Nf3 (26.a6 Rfd8+–) 26...Bf6 (26...Nb4 27.Nd4+–) 27.Bf6 (27.a6 ba6 28.Ba6 Rb8+–) 27...Nf6 28.Rfc1 Bd5 29.Qb4 Rc1 30.Rc1 h6 (30...Qb8 31.Rc2+–) 31.h3 (31.Ne5 Qd8+–) 31...Bc6 (31...Qb8 32.Qc3+–) 32.Nd4 (32.Ne5 Be4+–) 32...Bd5 (32...Be4 33.Nb5+–) 33.Nb5 Rd8 34.Nc7 Qc8 35.Rc5 (35.f3!? Ne8+–) 35...Ne4 36.Rc1 Rd7?? (36...Nf6 37.f3 Ne8+–) 37.Bf3 Nd2?? (37...f5+–) 38.Bd5 (38.Qd2?! Bf3 39.Qb2 Bc6+–) 38...Rd5 39.g3 (39.a6 Nf3 40.gf3 Rd8+–) 39...Nf3?? (better 39...Rd7+–) 40.Kg2+– Ne5 (40...Ng5 41.a6 e5 42.Qg4 (42.Nd5?? Qh3 43.Kg1 Nf3) 42...Qg4 43.hg4+–) 41.Qc3 (better 41.Nd5!? Qc1 42.Ne7 Kh7+–) 41…Ng6 (41...Ng6 42.Nd5 Qc3 43.Rc3 Ne5+–). KLINGON09 (1745) – ronky35 (1745), lichess.org, 2020.

4.cb5 Nf6=+.

4.cb5 d5

5.a4 Bg4 6.Ba3 (6.Bb2 Nf6=+) 6...e5–/+ 7.Nc3 Nf6 8.Qc2 e4 9.e3 Bd6 10.Be2 Bf5 11.d3 (11.d4 Nbd7=+) 11...Qa5–/+ 12.d4 Nbd7 13.Bc1?? (better 13.Rc1–/+) 13...cd4–+ 14.ed4 Opening the c–file gets Black a lot of play (14.g4 Bg6 15.g5 Qc3 16.Qc3 dc3 17.gf6 Nf6 18.a5–+) 14...Rc8 (better 14...e3 15.Qb3 Bb4–+) 15.Bb2 Bb4 16.Rc1 0–0 17.Qb3 Rc3 (better 17...Nb6 18.Kf1 Rfd8–+) 18.Bc3=+ Rc8 19.Kd2?? (19.Qb4 Qb4 20.Bb4 Rc1 21.Kd2–/+) 19...Bc3–+ 20.Rc3 (20.Kd1 Qb6 21.Rc3 Qd4 22.Ke1 Rc3 23.Qb2–+) 20...e3! 21.fe3 (21.Ke3 Deflection from c3 21...Rc3 A double attack) 21…Rc3 (21...Rc3 22.Qc3 Ne4 23.Kc1 Qc3 24.Kb1 Nd2 25.Ka2 Bb1) 0–1. petrobbo (2045) – leonwool (2255), ChessWorld.net, 2011.

5.Bb2 Nf6 6.Nf3 g6 7.e3 Bg7 8.Be2 0–0 9.0–0 Ne4 (9...Bf5 10.d3+=) 10.Bg7= Kg7 11.d3 Nd6 (11...Nf6 12.Qc2 Nbd7 13.d4=) 12.Nc3 e6 13.a4 Qa5 14.Qb3 Nd7 15.Qb2 f6 16.Rfb1 Nb6 17.Qb3 Bd7 18.d4 cd4 19.ed4 Rfc8 20.Rc1 Ndc4 (20...Ne4!? 21.Ne4 Rc1 22.Rc1 de4+=) 21.Bd3= Rc7 22.Ra2 Be8 23.Bc4 Rc4 a4 becomes the focus of attention 24.Rac2 Na4–/+ 25.Na4 Qa4 26.Qa4 Raa4 27.Rc4 Rc4 28.Rc4 dc4 29.b6 Kf7 30.Kf1 Ke7 31.Ke1 Kd6 32.Kd2 Bc6 33.Ne1 Bd5 34.Kc3 Kc6 35.f3 Kb6 36.Nc2 Ka5 37.g3 b5 38.f4 h6 39.h4 g5 40.hg5 hg5 41.Nb4 gf4 42.gf4 Be4 43.Na2 Bb1 44.Nb4 Be4 45.Na2 Ka4 46.Nb4 ½–½. Savin,Mike – Thacker,Steve M, BCF–chT4, 2004.

5.d4 =+.

5.e3 e5 6.Bb2 Bd6 7.Nc3 Be6 (7...Nf6 8.Qb3 Be6 9.Qc2–+) 8.a4 (8.Nf3!?+=) 8...Nf6–/+ 9.Qb1 (9.Qc2 0–0–/+) 9...Nbd7–+ 10.Nf3 h6 11.d3 (better is 11.Nh4–+) 11...d4 12.Nd1 Qa5 13.Nd2 Qb4 (13...0–0 14.Be2 Nb6 15.Bc1–+) 14.Qc2 Nb6 15.Ba3 Qa4 16.Qa4 Ra4 17.Nb2 Ra7 18.ed4 cd4 19.Nb1 Kd7 20.Nd1 Rha8 0–1. Pruvost,A – Rusev,K (2540), La Fere FRA, 2012.

5.e3 Nf6 6.Nf3 e6 7.Be2 Bd6 8.Bb2 Nbd7 9.0–0 0–0 10.d3 b6 11.a4 Bb7 12.Nbd2 Qc7 13.Qb3 (13.Qc2 e5 14.Nh4 e4=+) 13...e5 14.h3 Ra7 15.Rfc1 Rfa8 16.Kh1 (16.Qc2 Nf8=+) 16...Qd8–/+ 17.Kg1 Qe7 18.Ra2 e4 19.de4 Ne4 (19...de4 20.Ne1–/+) 20.Ne4=+ Qe4 (20...de4 21.Nd2=+) 21.Nd2 (21.Bd3 Qe7=) ½–½. Schwichtenberg,Juergen – Fischer,Heinrich, Hessen–ch Seniors, 2004.

3.c4 d5

4.Bb2 dc4=+ 5.a4 (5.Qa4 Nd7 6.Qc4 e5=+) 5...ab5 6.ab5 Ra1 7.Ba1 Qa5 8.Nc3 e5 9.e3 Nf6 (9...Be6 10.Be2=+) 10.Bc4=+ Bf5 1–0. onur604 (2315) – Bariss_Ertan (2170), lichess.org, 2020.

4.cd5 ab5 5.e4 Bd7 6.Nf3 b4 (6...Nf6 7.Qc2=) 7.d4+= Nf6 (7...e6 8.dc5 Bc5 9.Bb2+=) 8.dc5+– Ne4 9.Qd4 f5 (9...Nf6 10.Qb4 Qa5 11.Qa5 Ra5 12.Bf4+–) 10.Nbd2 Na6 (10...Nc3!?+–) 11.Ne4+– fe4 12.Ne5 (12.Qe4?! Nc5 13.Qe5 b3+–) 12...Rc8? (better 12...Qc7 13.Ba6 Ra6+–) 13.Be2 (13.Nd7?! Qd7 14.Ba6 ba6+–) 13...Nc5 (13...Rg8 14.Qe4 g6 15.Qf3+–) 14.Bh5 g6 15.Ng6 (15.Nd7 Nd3 16.Ke2 Qd7 17.Qh8 Rc2 18.Kf1 Qf5= (worse 18...Rf2 19.Kg1+=)) 15...Nd3 (15...Bg4 16.Nf8 (16.Nh8?! Bh5 17.0–0 e6+–) 16...Bh5 17.Qh8+–) 16.Qd3!! Bg7 (16...ed3 17.Nh8) 17.Qe4 hg6 (17...Bc3 18.Kf1 Bb5 19.Kg1 Be2 20.Ne7 Bh5 21.Nc6 Kf8 22.Bh6 Bg7 23.Nd8 Bh6 24.Qf5 Kg7 25.Ne6 Kg8 26.Qh5 Bf8+–) 18.Qg6 Kf8 19.Qf7 1–0. GuestLHGP – GuestJQKF, freechess.org, 2018.

4.cd5 Qd5 5.Nc3 Qd6 =.

4.e3 e5 5.Bb2 (5.cd5 Qd5 6.Nc3 Qd6=) 5...f6 (5...d4 6.Qe2 Be6 7.ed4 ed4 8.Na3=+) 6.Nf3 (6.cd5 Qd5 7.Nc3 Qe6=) 6...d4 (6...e4 7.Ng1 d4 8.Qa4=+) 7.ed4= cd4 8.d3 (8.Bd3!?=) 8...Bb4 (8...ab5 9.cb5 Qa5 10.Nbd2 Qb5 11.Bc1–/+) 9.Nbd2 ab5 10.cb5 Bd7 11.Be2 (11.a4 Qa5–/+) 11...Bb5 12.0–0 (12.Qb3 Nc6–/+) 12...Bd2 13.Nd2=+ Ne7 14.Bf3 Bc6 15.Qb3 Bd5 16.Bd5 Qd5 17.Nc4 0–0 18.Rac1? Nbc6 19.Qb7?? Ra2 20.Qb3 Rfa8–+ 21.Qd1 Na5?? 22.Ra1?? Ra1 23.Qa1 Rb8 24.Qa5 Qa5–+ 25.Na5 Rb2 26.h3 Nd5 27.Nc6 Nb4 28.Rd1?? Rb3 29.Nb4 Rb4 30.Kf1 Rb2 31.g3 Kf7 32.Kg2 Ke6 33.Kf3 f5 34.g4 g6 35.gf5 gf5 36.h4 Kd5 37.h5 e4 38.de4 fe4 39.Kf4 Rf2 40.Kg5 Rh2 41.Kh6 e3 42.Rg1 Ke4 43.Rg2 Rg2 (44.Kh7 e2 45.h6 e1Q 46.Kh8 Qg3 47.h7 Qe5) 0–1. toll (1615) – yoho (1645), ICC, 2003.

4.e3 e6 5.Bb2 =+.

4.e3 Nf6 5.Bb2 ab5 6.cd5 Bd7 7.Bf6 gf6 8.Be2 Rg8 9.g4 Na6 10.Nc3 b4 11.Ne4 Qc7 12.Qc1 (12.d6 Qd8=) 12...Qe5 13.Nc5?? (13.Ba6 Qe4 14.f3 Qd5 15.Bc4–/+) 13...Nc5–+ 14.Nf3 (14.d4 Qd5 15.f3 Ne6–+) 14...Qd5 15.Qc2 (15.h3 Nd3 16.Bd3 Qd3–+) 15...b3 (15...Bg4 16.Rg1 b3 17.Bb5 Nd7 18.Qh7 Qb5 19.Nd4–+) 16.Qh7 b2 (16...Ra2 17.Qb1 Bg4 18.Bb5 Kd8 19.d4–+) 17.Rb1 Rg7 18.Qc2 Ra2 (better is 18...Bg4 19.e4 Ne4 (< 19...Qe4 20.Qe4 Ne4 21.Rb2–+) 20.Qb2 Ra2 21.Qb5 Qb5 22.Bb5 Kd8–+) 19.Rb2 (19.h3 f5 20.g5 Rg5–+) 19...Ba4 (better is 19...Rb2 20.Qb2 Qf3 21.Bf3 Nd3 22.Ke2 Nb2–+) 20.Qc3 (20.Qb1 Rb2 21.Qb2 Qf3 22.Bf3 Nd3 23.Ke2 Nb2 24.Bb7 Rg4 25.d4 Bb5 26.Kf3–+) 20...Ra1 (21.Rb1 Rb1 22.Bd1 Qf3 23.Qc1 Nd3 24.Kf1 Qf2) 0–1. Steingraeber,Barbara – Jenull,Marco, remoteschach.de, 2002.

3.c4 e6

4.Bb2 Qc7 (4...ab5 5.cb5 d5 6.Nf3=+) 5.a4 Qb6 (5...Nf6 6.Bf6 gf6 7.Nc3=) 6.e3 Nf6 7.Qc2 (7.Bf6 gf6 8.a5 Qd8+=) 7...Bd6 (7...Be7 8.d4=) 8.Bd3 Qc7 9.Nf3 Be7 10.0–0 d5 11.cd5 Nd5? (better 11...ed5!? 12.Be5 Qd8=) 12.Bg7+– Rg8 13.Be5 Bd6 14.Bd6 Qd6 15.Bh7 Rh8 16.Na3 Nf6 (16...Nb4 17.Nc4 Qc7 18.b6+–) 17.Nc4 Qf8? (17...Qc7 18.b6 Qe7+–) 18.Nb6 Nbd7 19.Na8 Rh7 20.Nc7 Kd8 (20...Ke7 21.a5+–) 21.Ng5 Rh8 (21...Qh6 22.Nh7 Qh7 23.Qh7 Nh7+–) 22.Nce6! (22.Nce6 fe6 23.Ne6 Ke7 24.Nf8 Rf8 25.d4 cd4 26.ed4+–) 1–0. GuestKVNL – GuestBRZJ, freechess.org, 2017.

4.Nc3 a5 (4...d5 5.cd5 ed5 6.d4=+) 5.Bb2 (5.e4 d6+=) 5...b6 (5...d5 6.e3=) 6.e3 d6 (6...d5 7.Nf3+=) 7.Nf3 Nd7 8.Be2 Bb7 9.0–0 Qc7 10.d4 Be7 11.d5 e5 12.Bd3 Ndf6 13.Qc2 Bc8 14.Ng5 Bd7 (14...Ng4!? 15.Nge4 f5+=) 15.f4 (15.Bh7? Nh7 16.Nh7 g6–+) 15...Ng4 16.Rae1 (16.Nh7 Ne3 17.Qe2 Nf1 18.Rf1 Nh6–/+) 16...h6? (better 16...Ra7!?+–) 17.Nf7! Kf7 Decoy theme: f7 18.Bg6 Kf8 19.fe5 N4f6 (19...N8f6 20.ef6 Bf6 21.Ne4+–) 20.ef6 Bf6 (20...Nf6 21.Ne4 Qd8 22.Rf3+–) 21.Ne4 Ke7 22.Nf6 Nf6 23.Rf6! gf6 (23...Raf8 24.Rf8 Rf8 25.Bg7 Rg8+–) 24.Bf6! Kf6 Decoy to f6 25.Rf1 Ke7 (25...Bf5 26.Qf5 Ke7 27.Qf6 Kd7 28.Bf5 Ke8 29.Qh8 Ke7 30.Qg7 Ke8 31.Bd7 Qd7 32.Rf8) 26.Qc3 Raf8 (26...Bf5 27.Qg7 Kd8 28.Qh8 Kd7 29.Bf5 Ke7 30.Qg7 Ke8 31.Bd7 Qd7 32.Rf8) 27.Rf8 Rf8 28.Qg7 Rf7 29.Qf7 Kd8 30.Qf8 Be8 31.Qe8 1–0. DEFFM – GuestRRLX, freechess.org, 2020.

3.e3 ab5

4.Bb5 Qa5 5.Nc3+= e6 6.Bb2 Nf6 7.a4 (7.Rb1 Be7=) 7...Nc6 8.Nf3 Be7 9.0–0 0–0 10.Nd4?? (better 10.e4!?=) 10...Nd4 (better 10...cd4 11.Ne2 de3 12.fe3 d5–+) 11.ed4–/+ d5 (11...cd4!? 12.Ne2 e5–/+) 12.dc5= Bc5 13.d4 (13.Ne2 Qd8=) 13...Be7 (13...Bb4 14.Qf3=+) 14.Bd3 h6 (14...Bd7 15.Nb5=+) 15.Nb5= Bd7 16.c4 (16.Qf3 Bb4=) 16...Bc6 (better 16...dc4!? 17.Bc4 Rfc8=+) 17.c5+= Qb4?? Exerts pressure on the isolated pawn (better 17...Qd8+=) 18.Bc3+– Qa4 (18...Bc5 19.Bb4 Bb4+–) 19.Ra4 Ra4 20.Qa4 Ne4 21.Be4 de4 22.Qb3 Rd8 23.Qb2 Rd5 (23...Ra8 24.Re1+–) 24.Nd6! Bd6 25.cd6 Rd6 26.d5! Bd5 (26...Bd5 27.Bg7 Discovered attack; 26...Rd5 27.Bg7 Discovered attack; 26...ed5 27.Bg7 Discovered attack) 27.Bg7 h5 (27...f5 28.Ra1 b5+–) 28.Bh6 (28.Bh6 e5 29.Qe5 Rh6 30.Qd5+–) 1–0. GuestMZCR – GuestTDLL, freechess.org, 2017.

4.Bb5 Qb6 5.Nc3 =.

4.Bb5 Nc6 5.Nf3 d6 6.0–0+= Bd7 7.d4 cd4 8.ed4 Qb6 (8...Nf6!?+=) 9.c4+– Nf6 10.Nc3 e6 (10...h6 11.Re1+–) 11.d5 ed5 (11...Ne5 12.de6 fe6 13.Ng5 Bb5 14.Nb5 Nc4 15.Ne6+–) 12.cd5 (12.Re1!? Be7 13.Qe2 Ne5 14.Bd7 Nfd7 15.Nd5 Qd8+–) 12...Ne5+– 13.a4 (13.Rb1 Qc7 14.Ne5 de5 15.Bd7 Qd7+–) 13...Be7 14.Ne5 de5 15.Bg5 Bb5 16.Nb5 0–0 (16...Rd8!? 17.Be3 Bc5 18.Bc5 Qc5+–) 17.d6 Bd8 18.Rc1 Ne4 (18...h6!? 19.Bf6 Bf6+–) 19.Be3+– Qa5 20.Rc4 f5 (better 20...Nf6+–) 21.Qd5 Kh8 22.Qb7 Bf6 (22...Ra6 23.d7+–) 23.d7 Rab8 (23...Qd8+–) 24.Rc8 Qd8 (24...Rfc8 25.dc8R Rc8 26.Qc8 Qd8+–) 25.Qb8 f4 26.Rd8 (26.Rd8 Bd8 27.Bb6+–) 1–0. DEFFM – GuestKSZD, freechess.org, 2018.

4.Bb5 Qc7 5.Bb2 e6 6.Nf3 Ne7 (6...Nc6!?=) 7.0–0 Ng6 8.a4 f6 (8...Nc6 9.Na3+–) 9.h4 Bd6 10.h5 Ne5 11.d4 (11.Nc3 Nbc6+–) 11...Nf3 (11...cd4 12.Ne5 (worse 12.Qd4 Nf3 13.gf3 Be5=+) 12...fe5 13.h6+=) 12.Qf3 h6 (12...cd4 13.ed4 0–0 14.Na3+=) 13.Qg4 (13.d5!?+–) 13...0–0+= 14.dc5 (14.d5 Na6+=) 14...Bc5= 15.Bd3 Nc6? (better 15...d5=) 16.Qg6+– Ne5 (better 16...Rf7 17.Qh7 Kf8+–) 17.Qh7 Kf7 18.Bg6 Ng6 (18...Ke7 19.Nc3 Ng4 20.g3+–) 19.hg6 Ke7 (19...Ke8 20.Qg7 Be7+–) 20.Qg7 Kd8 21.Qh6 (better 21.Qh7 Qb6 22.Bc3 e5+–) 21...Qd6 (21...d5 22.g7 Rg8 23.Bf6 Ke8+–) 22.g7 Kc7 (22...e5 23.gf8Q Qf8 24.Qh4+–) 23.Nc3 b6 (23...Qe7 24.Nb5 Kc6 25.gf8R Qf8+–) 24.Nb5 (24.Nb5 Kc6 25.Nd6+–) 1–0. GuestGWNB – GuestNYVF, freechess.org, 2020.

4.Bb5 e5 5.Qf3 Nf6 6.Qf5 Bd6 (6...Nc6 7.Bc6 dc6 8.Qe5 Be6 9.Nf3=) 7.Bb2 Qe7 8.Nc3 Nc6 9.Qg5 h6 (better is 9...0–0!?=+) 10.Qg7+= Qf8?? (better is 10...Rg8 11.Qh6 Rg2+=) 11.Qf6+– Be7 12.Qf5 Rg8 13.Nd5 Kd8 14.Be5 (better is 14.Nb6 d6 15.Nc8 Rc8 16.g3+–) 14...d6 15.Qh7 de5 (15...Ne5 16.Ne7 Ke7 17.Nf3 Nf3 18.gf3+/–) 16.Ne7 (16.Nb6 Rb8 17.Qd3 Bd6 18.Bc6 bc6 19.Nc8 Rc8+–) 16...Ne7 17.Rb1?? (better is 17.Qd3 Kc7 18.Qc3+–) 17...Bf5–+ 18.Qg8 Ng8 (18...Qg8 19.Bf1 f6 20.a4–+) 19.Bd3 (19.Bc4 Qg7 20.g3 Bc2 21.Rb7–+) 19...Bd3 20.cd3 Qe7 (20...Qd6 21.Ne2 Qd3 22.Rd1–+) 21.Rb2 Qd7 (21...Qe6!? 22.Ke2 c4 23.dc4–+) 22.Nf3 f6 23.0–0 Qd3 24.Ne1 (24.Rc1 e4 25.Nh4 Qd5–+) 24...Qg6 (better is 24...Qd5!? 25.d4 ed4 26.ed4 cd4 27.Nf3–+) 25.Rb7 Ra2 26.Nf3 (26.d3 f5–+) 26...Ne7 (26...e4 27.Nh4 Qg5 28.g3–+) 27.Rc1 (27.Rb8 Nc8–+) 27...Ra5 (better is 27...Qd3 28.Rbb1–+) 28.Rb8 Nc8 29.d4 Qd3 (29...Qc2! 30.Rbb1 (30.Rc2?? Ra1 31.Rb1 Rb1 32.Rc1 Rc1 33.Ne1 Re1) 30...Qf5 31.dc5 Rc5 32.Kf1–+) 30.de5 Qe2 (30...fe5!? 31.Ne5 Qd5 32.Nf3–+) 31.ef6 Ra2 (better is 31...Qc2 32.Rcb1 Qf5–+) 32.f7?? (better is 32.Rf1 Ra6 33.f7–/+) 32...Qf2 33.Kh1 Qg2 0–1. Seanypop – BLACKBEARD, ChessWorld.net, 2004.

4.Bb5 e6 5.Bb2 Ne7 (5...Nc6 6.f4=) 6.Nf3 Ng6 (6...Nbc6 7.a4=) 7.0–0+= Nc6 8.a4 Qc7 9.Na3 d5 (9...f6 10.h4+–) 10.c4 f6 11.d4 Bd6? (better 11...Kf7+–) 12.cd5 ed5 13.dc5 Be5 (13...Bc5 14.Qd5 Qd6 15.Qe4 Kf8+–) 14.Ne5 Nge5 15.Qd5 Bf5 (15...Kf8 16.f4 Nf7 17.a5+–) 16.Be5 Rd8 (16...Qe5 17.Bc6 bc6 18.Qc6 Kf7+–) 17.Bd6 Rd6 (17...Qd7 18.Nc4 Be6 19.Qf3+–) 18.cd6 Qd7 19.a5! Be6 (19...Na5 20.Bd7 Double attack (20.Bd7 Pinning; 20.Bd7 Deflection; 20.Bd7 Decoy)) 20.Qc5 0–0 21.a6 (21.a6 Qf7 22.Qb6+–) 1–0. DEFFM – GuestRJRY, freechess.org, 2020.

4.Bb5 g6 5.Bb2+= Nf6 6.d4 (6.Bf6!? ef6 7.Nf3+=) 6...Qa5= 7.Nc3 Ne4 (7...Qb4 8.Qb1=) 8.Qd3 (8.Nge2 Nc3 9.Nc3 Bg7=) 8...cd4 (8...Qb4 9.Nge2 Qb2 10.Rb1 Nf2 11.Rb2 Nd3 12.cd3 cd4 13.Nd5=+) 9.ed4 (9.Qd4 Nf6+=) 9...Nc3 (9...Qb4 10.Nge2 Nf2 11.Kf2 Qb2+/–) 10.Bc3+= Qb6 (10...Qc7 11.Qc4 Qc4 12.Bc4+=) 11.d5+/– f6 12.Rb1 (12.Nf3 Bg7+/–) 12...Qd6 13.Nf3 Bg7 (13...Na6 14.Bc4+/–) 14.0–0 (better is 14.Bb4 Qb6 15.0–0+/–) 14...0–0? (14...Na6 15.Rfe1+/–) 15.Bc4 (15.Bb4 Qf4 16.Be7 Re8+–) 15...b6? (15...Na6!?+/–) 16.Rfe1 Na6 17.Bd4 Nb4 18.Qc3 Nd5 19.Bd5 Qd5+= 20.Rb6 d6? 21.Rb2?? Bf5?? 22.Re7+/– Rfc8 23.Qd2 Ra2 24.Ra2 Qa2= 25.c3 Qa1 26.Re1 Qa5 27.Nh4 Bd7 28.h3 Bc6 29.Qd3 Bb5 30.Qg3 Rc4? 31.Qd6+– Bf8 32.Qe6 Kg7 33.Qf6 Kh6 34.Qf8 Kh5 35.Re5 Kh4 36.Qh6 1–0. icewater – PoetPrince, Live Game Caissa's Web, 2005.

3.e4 Qa5

4.a4 ab5 5.Bb5 b6 (5...Qb6 6.Bb2+=) 6.Nf3 (6.Na3 Qa7+–) 6...Ba6 (6...Bb7 7.e5+=) 7.Na3 Bb5 (7...Qb4 8.c4+=) 8.Nb5+– Na6 9.0–0 Qb4 (better 9...Nf6!?+–) 10.d3+– c4 11.Bd2 Qc5 12.Be3 Qc6 (12...Qh5 13.Bb6 Nf6 14.Bd4+–) 13.Ne5 Qe6 14.Nc4 Rc8 (14...Rb8 15.Qb1 Qc6 16.a5 ba5 17.Ra5+–) 15.Nb6 (15.a5 Rc4 16.dc4 Qc4+–) 15...Rb8 16.Nd5 Nf6 (16...Qc6+–) 17.Ndc7 Nc7 18.Nc7 Kd8 19.Ne6 fe6 20.a5 e5 (20...g6 21.c4+–) 21.a6 (better 21.Bb6 Ke8 22.Bc7 Rb7 23.Be5 Ra7+–) 21...Ra8 (21...e6 22.Bb6! Ke8 23.Bc7+–) 22.Qb1 e6 23.Qb7 Rc8 24.Bb6 Ke7 25.Qc8 (25.Qc8 Kf7 26.f4 ef4 27.e5+–) 1–0. DEFFM – GuestBJGJ, freechess.org, 2019.

4.Nc3+=.

4.Bc4 ab5!? 5.Be2 Nf6=+.

4.Bc4 Nc6?? 5.Na3?? (5.bc6 dc6 6.Nc3 b5+–) 5...Nf6?? (better is 5...ab5 6.Nb5 Nf6=) 6.bc6+– Ne4 7.c3 Nc3? 8.dc3 Qc3+/– 9.Bd2 Qa3 10.cd7 Bd7 11.Nf3 Qb2? 12.0–0 Qf6 13.Rb1 0–0–0? 14.Qb3 b5 15.Bd5 e6? 16.a4?? c4?? 17.Bc4!+– Re8 18.ab5 Bd6 19.ba6 Kd8 20.a7 Ke7 21.Rfe1 Kf8 22.Bb5 Rd8 23.Bd7 Bc5 24.Bb4 Qe7 25.Re6 Qd7 26.Bc5 Kg8 27.Rd6 Qc7 28.Rd8 Qd8 29.Qb8 h6 30.Qd8 Kh7 31.Qd3 g6 32.Bd4 Rf8 33.Rb7 Ra8 34.Rf7 Kg8 35.Qg6 1–0. blacksteelpipe – anchan, Live Game Caissa's Web, 2005.

3.e4 ab5

4.Bb5 Ra5 5.a4. GuestGWRV – aprendis, freechess.org, 2018.

4.Bb5 Nc6 5.Nf3+= Ra5 (5...Nf6 6.e5 Ng4 7.Bb2+=) 6.a4 (6.Nc3 Nf6+=) 6...Nf6 (6...Na7 7.Be2+=) 7.e5 Ng4 8.Bb2 Nd4?? (better 8...d5+=) 9.Nd4+– Nf2 10.Kf2 cd4 11.Bd4 e6 12.Qg4 b6 (12...Qc7 13.Bc3 Ra8 14.Rf1+–) 13.Rf1 Bb7 (13...Ba6 14.Nc3 Qc7 15.Ke1+–) 14.Kg1 Qa8 (14...Bc6+–) 15.Bd7! Kd7 16.Rf7 Be7 17.Re7! Ke7 18.Qg7 Kd8 19.Bb6 Kc8 20.Qc7 1–0. DEFFM – GuestKBDC, freechess.org, 2018.

4.Bb5 Nf6 5.Nc3=.

3.e4 d5

4.Bb2 de4=+ 5.Bc4 Nf6 6.Nc3 Qd4 (6...e5!?–/+) 7.Nd5= Qc4 (7...Qd5 8.Bd5) 8.Nc7 Kd8 9.Na8 Bg4 10.f3 ef3 11.gf3 Bf5 12.Bc3 Qh4 13.Kf1 Nd5 (13...Qa4 14.Ke1–/+) 14.Ba5=+ Kc8 15.Qe2 (15.ba6 Na6 16.Nb6 Nb6 17.Bb6 Nb4=+) 15...e6 (15...Qf6 16.Rc1 Qb2 17.Re1–/+) 16.Nb6 (16.ba6 Na6 17.d3 Kd7=+) 16...Nb6–/+ 17.Bb6 Bd6 (17...Nd7!? 18.Ba5 ab5–/+) 18.ba6=+ Na6 19.d3 Qd4 (19...Qb4!? 20.Ba7 Qb2–/+) 20.Rb1= Nb4 21.Rb3 (21.Ke1 Kd7 22.a4 Qc3 23.Kd1 c4–/+) 21...Nd5 (21...Kd7 22.c3 Qd3 23.cb4+/–) 22.Ke1= Bf4 (22...Nb6 23.Rb6 c4 24.Rb1 cd3 25.cd3 Bb4 26.Rb4 Qb4 27.Kf1–+) 23.Ba5 (23.Qd1!?=) 23...Be3 24.c3 (24.c4 Nf4 (24...Bg1?! 25.cd5 Bf2 26.Kd2=) 25.Qc2 Bg1–+) 24...Qa4 (24...Qd3 25.Qb2 Bg1 26.Rg1 Qe3 27.Qe2 Qg1 28.Qf1 Qh2–+) 25.Bb6 =. Blaszczak,Jan (2000) – Lipski,Tadeusz (2200), Poland, 1992.

4.ed5!? Qd5 5.Nc3 Qe6 6.Qe2=.

4.ed5 Qd5 5.Nc3 Qe6 6.Be2 Bd7+=.

4.ed5 Qd5 5.Nc3 Qh5?? 6.Qh5+– Be6 7.Qf3 Nd7 8.ba6 Nb6 9.ab7 Bd5 10.Qd5 Rd8 (10...e6 11.Bb5 Ke7 12.Qc5 Kd8 13.Qb6 Ke7 14.Ne4 Rd8 15.Ba3 Rd6 16.Qd6) 11.Bb5 Nd7 (11...Rd7 12.b8Q Nc8 13.Qd7) 12.Qd7! Rd7 (12...Rd7 13.b8Q Mate attack) 13.b8Q 1–0. DEFFM – GuestRJFB, freechess.org, 2019.

4.ed5 Qd5 5.Nf3 Qe6!? 6.Be2 ab5=.

4.ed5 Qd5 5.Nf3 Bg4 6.Nc3+= Qe6 7.Qe2 Qf5 8.ba6 Bf3 9.gf3 Na6 10.Qb5 Qd7 11.Na4 Qc6 (11...Qb5 12.Bb5 Kd8 13.Nb6+–) 12.Qc6 bc6 13.Nb6 Ra7 14.Nc8 Ra8 15.Nb6 (15.c3 Nf6 16.Nb6 Rb8 17.Ba6 Rb6+=) 15...Ra7+– 16.c3 Nf6 17.a4 e6 18.Nc8 Ra8 19.Nb6 Ra7 20.Rg1 (20.a5 Nd5+–) 20...Nd5+= 21.a5 Nb8 22.Nd5 ed5 23.Bb2 (23.d4 g6+=) 23...g6= 24.c4 (24.Kd1 Bd6=) 24...Rg8 (24...d4 25.Kd1=+) 25.cd5 (25.Kd1 Bg7 26.Bg7 Rg7 27.cd5 cd5 28.Bb5 Ke7 29.Re1 Kd6+=) 25...cd5= 26.Bb5 Kd8 27.Ke2 Na6 (27...Kc7 28.Be5 Bd6 29.Bd6 Kd6 30.Rgb1=) 28.Rgc1 Re7 (28...Bd6!? 29.Bf6 Kc7=) 29.Kf1+= Re6 30.Rab1 Nc7 31.Ba3 c4 32.Bf8 Rf8 33.d3 Nb5 34.Rb5 cd3 35.Rd5 Ke7 36.Rc7 Kf6 37.Rd3 Ra6 38.Rd5 h5 39.f4 (39.Rcc5 Rb8+=) 39...Rb8 40.Rc4 Rb1 41.Kg2 Ra1 Exerts pressure on the isolated pawn 42.Rcc5 Ra4 43.Kg3 Kg7 (43...Ra3 44.f3+=) 44.f5 Ra3 45.f3 Ra7 46.h4 1–0. DEFFM – asadha, freechess.org, 2019.

4.ed5 Nd7 5.ba6 (5...ba6 6.d4+=). Mario Cruz (1925) – nice chess, internet, 2005.

3.e4 e6

4.ba6 ba6 5.Nc3 d5 =.

4.Bb2 Nf6 5.a4 (better 5.e5!? Nd5 6.Nf3+=) 5...Ne4=+ 6.Nf3 Qb6 (6...d5 7.Nc3–/+) 7.Bd3 (7.Nc3 Nf6=) 7...Nf6 (7...Nf2 8.Kf2 c4 9.Bd4=+) 8.0–0 (8.Na3 d5 9.0–0 Be7=) 8...d5 (8...ab5 9.ab5 Ra1 10.Ba1=+) 9.a5 (9.Na3!?=) 9...Qd8=+ 10.c4 (10.Na3 c4 11.Be2 Bb4–/+) 10...d4 (10...ab5 11.cb5 Ra5 12.Ra5 Qa5 13.Be2–+) 11.Qa4 Bd7 12.Re1 (12.Na3 Bd6=+) 12...Be7 13.Ne5 Bd6 (13...0–0 14.h3=+) 14.Qd1 (14.Na3 0–0=+) 14...Qc7=+ 15.f4 ab5 16.cb5 b6?? (better 16...0–0=+) 17.a6 (better 17.ab6 Qb7 18.Ra8 Qa8 19.Na3+–) 17...0–0+– 18.Qf3 Nd5 19.Qh3 (better 19.Na3+–) 19...h6 20.Qf3 (20.g3 Bc8=) 20...Be5 21.Re5 f5?? (better 21...c4 22.Be4 Bb5 23.Bd5 ed5 24.Qd5 c3 25.dc3 Bc6=+) 22.Rd5+– ed5 (22...Bc6 23.bc6 ed5 24.Qd5 Kh7+–) 23.Qd5 Kh8 (23...Be6 24.Qa8 Na6 25.Qa6+– (25.Ra6 Ra8 26.Ra8 Kh7–/+)) 24.Qa8 Nc6 (24...c4 25.a7 cd3+–) 25.Qf8 (25.Qf8 Kh7 26.bc6 Qc6 27.a7 Qc7 28.a8Q Be6 29.Bf5 Bf5 30.Qg8 Kg6 31.Qae8 Kf6 32.Qgf8 Qf7 33.Qef7; 25.bc6 Ra8 26.cd7 Qd7–/+) 1–0. DEFFM – GuestMCQY, freechess.org, 2018.

4.Nc3 d5 =.

4.Nf3 d5 5.ed5 ed5 6.ba6 c4 (better 6...ba6!? 7.d4 Nf6=) 7.ab7+– Bb7 8.d3 Bc5 9.dc4 dc4 (9...d4!?+–) 10.Qd8+– Kd8 11.Bc4 Ra3 1–0. DEFFM – GuestZCVW, freechess.org, 2018.

4.Nf3 d5 5.ed5 ed5 6.Bb2 d4 7.Bc4 (7.ba6 Na6 8.Bb5 Bd7 9.Bd7 Qd7=) 7...ab5 (7...Qe7 8.Qe2=) 8.Bb5 Bd7 9.Qe2 Qe7 10.0–0 Qe2 11.Be2 Be7 12.Re1 Nf6 13.c3 dc3 14.Nc3 0–0 (14...Nc6 15.Bc4=) 15.Ne5 Be6 16.Bf3 Rd8 17.Bb7 (17.Rab1 A) < 17...Ba2 18.Ra1+/– (18.Bb7?! Bb1 19.Ba8 Bf5=); B) 17...Ra7=) 17...Ra7 18.Bf3 Rd2 19.Rab1 Rd8 (19...Bf5 20.Bc1 Rd8 21.Ra1+=) 20.a3+= Nd5 21.Nb5 Ra5 22.Bc1 (22.Bd5 Bd5 23.Nc7 Ba2=) 22...Bf6= 23.Nd6 Nc3 (23...Ra8 24.Nb7 Rc8 25.Bb2+=) 24.Rb2+= Na4 (< 24...Rd6 25.Rb8 Rd8 26.Rd8 Bd8 27.Nc6+–) 25.Rb7 Be5 (25...Rd6? 26.Nc4 Rb5 27.Nd6 Rb7 28.Bb7+–) 26.Re5 Ra6 27.Nb5 Nc6 28.Re1 Nd4 29.Nd4 cd4 30.Rd1 f6 (30...Rc8 31.Bd2=) 31.Rc7+= d3 32.Kf1 Rb6 33.h3 (33.Be4!? Rbd6 34.Bd2=) 33...Nb2= 34.Bb2 Rb2 35.Be4 Bc8 36.f3 (36.Ra7 d2 37.Ra8 g6=) 36...Ba6 37.Rc6 (37.Ra7 Bc4 38.Rc7 Rc2=) 37...Bb5 (37...Bb7 38.Rc3 Be4 39.fe4=) 38.Rb6= d2 39.Kf2 g6 40.g4 (40.Rf6? Ba4 41.Rd2 Rdd2 42.Ke3 Rg2 43.Bd5 Kg7–+) 40...Kf7 41.h4 Ke7 (41...Rd4 42.g5 f5 43.Ke3=+) 42.Bc2 (42.f4 Rb3 43.Rb7 Kf8=) 42...Rc2=+ 43.Rb5 Ra2 44.Ra5 (44.Rb7 Rd7 45.Rd7 Kd7=) ½–½. Riepe,Bernhard (2080) – Glowatzky,Tihomir (2015), desc–online.de, 2003.

4.Bb2 d5

5.ed5 ed5 6.a4 Bd7 7.Nf3 ab5 8.ab5 Ra1 9.Ba1 Nf6 (9...Qe7 10.Qe2 Bf5 11.Qe7 Ke7 12.d3=) 10.c4 (10.Qe2!? Be6 11.Ng5=) 10...d4=+ 11.Bd3 Be7 12.0–0 0–0 13.Re1 Re8 14.Bb2 b6 15.Ne5 Be6 16.f4 Bd6 17.Re2 Nfd7 (17...Qc7 18.Qe1=+) 18.Nd7 Nd7 (18...Bd7 19.g3=) 19.Qf1 (better 19.f5 Ne5 20.Re5 (worse 20.fe6 Nd3 21.ef7 Kf7–/+) 20...Be5 21.fe6 Re6 22.g3+=) 19...Nf6=+ 20.Na3 Qc7 21.g3 Bg4 22.Re8 Ne8 23.Qg2 g6 (23...Nf6 24.h3 Bd7 25.Qa8 Bf8 26.Bf1=+) 24.Qa8 (24.h3 Bc8=) 24...Qb8 25.Qb8 Bb8 26.Kf2 Bc8 27.Be4 Nf6 28.Bf3 Bf5 29.Ke2 h5 30.d3 Nd7 (30...h4 31.Kd2=+) 31.Bc6 Kg7 32.Nc2 Nf6 33.Nd4 cd4 34.Bd4 Bc7 35.c5 bc5 36.Bc5 Nd7 37.Bd7 (37.d4 Ba5 38.Ke3 Kf6=) 37...Bd7 38.b6 Bb8 39.Ke3 Bc6 (39...Bc8 40.Kd4=+) 40.Be7= Bb7 ½–½. onur604 (2285) – jpjcscrubs (2140), lichess.org, 2020.

5.ed5 ed5 6.a4 Qe7 7.Qe2 =+.

5.ed5 ed5 6.a4 Nf6 7.Nf3 Be7 8.d4 (8.Be2 ab5 9.Bb5 Nbd7=+) 8...c4 9.ba6 Na6 10.c3 0–0 11.Be2 Qb6 (11...Re8 12.0–0–/+) 12.Ba3=+ Ba3 13.Ra3 Bf5 14.0–0 Nc7 (14...Rfe8 15.Ra2–/+) 15.Qc1 (15.Re1 Rfe8 16.Nfd2 Qa5–/+) 15...Bb1 (15...Rfe8 16.Ne5–/+) 16.Qb1 Qa5 17.Ra1 Ne4 18.Qb7 Rfb8 19.Qc6 Nc3 20.Bd1 Ne6 21.Qd6 Qb4 22.Qb4 Rb4 23.a5 Rb5 24.Ra3 Nd1 25.Rd1 Rba5 26.Ra5 Ra5 27.Kf1 Ra2 28.Ne5 Rb2 29.Ra1 g5 30.Ng4 c3 31.Nh6 Kg7 32.Nf5 Kf6 33.Ne3 c2 34.Nd5 Kg6 35.Nc3 Nd4 (36.Re1 Nb3–+; 35...Rb3 36.Rc1 Rc3 37.Ke2 Nd4 38.Kd2–+) 0–1. Zimmermann,Joerg (1690) – Poschmann,Hans (1800), TT–04.26 TSC, 2002.

5.ed5 ed5 6.Nf3 c4 7.a4 =.

5.ed5 ed5 6.Nf3 d4 7.Qe2 (7.ba6 Na6 8.Bb5 Bd7 9.Bd7 Qd7=) 7...Be7 8.c3 Nf6 9.Ne5 (9.cd4 0–0=) 9...0–0 (9...dc3 10.dc3 Nbd7 11.Na3=+) 10.cd4= cd4 11.Qc4 Bd6 (better is 11...ab5 12.Qd4 Qd4 13.Bd4 Nc6=) 12.Qd4 (12.Bd4 Be6 13.Qc2 Nbd7=) 12...Qe7 (better is 12...Be5!? 13.Qd8 Bb2–+ (13...Rd8 14.Be5 Re8 15.f4=)) 13.Be2 (13.f4 Nbd7=) 13...Re8=+ 14.f4 ab5 (14...Nbd7 15.ba6 ba6 16.Bf3–/+) 15.Qf2 (15.Bb5 Nc6 16.Bc6 bc6=+) 15...Nc6=+ 16.d4 Bb4 17.Kf1 Qd6 18.Nc3 (better is 18.Bd3!?=+) 18...Bc3–+ (18...Ne5 19.de5 Qc7 20.ef6+–; 18...Qd4?! 19.Qd4 Nd4 20.Nb5=+; 18...Nd4?! 19.Rd1 Bc5 20.Nb5 Nb5 21.Rd6 Bf2 22.Bb5+=) 19.Bc3 Ne4 20.Qe3 Nc3 21.Qc3 Nd4 22.Bf3 (22.Qb2 Ne2 23.Qe2 Qd4–+) 22...b4 (22...f6 23.Rd1 Rd8 24.Rd4 Qd4 25.Qb3 Rd5 26.Qd5 Qd5 27.Bd5 Kf8 28.Nf3+–) 23.Qd3 (23.Qd2 f6 24.Ng4 Ra3–+) 23…Bf5 (24.Qd1 f6–+) 0–1. Osthus,Reinhard – Poschmann,Hans, TT–04 TSC, 2002.

5.ed5 ed5 6.Nf3 Qe7 7.Be2 Bf5 =.

2.b5 b6

3.a4 Bb7 4.Bb2 d5 (4...a6 5.Nf3=) 5.Nf3 d4 (5...f6 6.a5=) 6.e3+= Nf6 (6...de3 7.fe3 e6 8.Bc4+=) 7.ed4+/– cd4 (7...e6 8.Bd3+/–) 8.Nd4 (8.Bd4 Ne4+/–) 8...e6+= 9.c4 (9.a5 ba5 10.Ra4 Bd6+=) 9...Bc5 10.Nf3 (10.Nb3 Bb4+=) 10...Nbd7 (10...Ne4 A) 11.Bg7? Rg8–+ (11...Bf2?! 12.Ke2 Rg8 13.Bb2=); B) 11.d4=) 11.d4+= 0–0?? (better is 11...Bd6+=) 12.dc5+– Nc5 13.Qd8 Rad8 14.Be2 Rd7 15.0–0 Rfd8 16.Nc3 Nb3 17.Rfd1 Na1 18.Rd7 Rd7 19.Ba1 Ng4 20.h3 Nh6 21.Ne5 Rd2 22.Bf3 Bf3+/– 23.Nf3 Rc2 24.Nd4?? Rc1–+ 25.Kh2 Ra1 26.Nc6 Ra3 27.Ne4 Ra4 28.Nd6 Nf5 29.Nc8 f6 30.N8a7 Rc4 31.Nc8 Rc5 32.N6a7?! Nd4 33.Nb6 Nb5 34.Nb5 Rb5 35.Nc4 Rb2?? 36.Ne3?? Rf2–+ 37.Kg3 Ra2 38.Ng4 Ra3 39.Ne3 Kf7 40.Kf4 e5 41.Ke4 g6 42.Nd5 Ra5 (43.Nc3 f5 44.Ke3 Ra3–+; 42...Rg3 43.Ne3–+) 0–1. toll (1620) – kingc6 (1805), ICC, 2003.

3.a4 d5 4.a5 =.

3.Bb2 e6 4.c4 Nf6 5.Nf3 d5 6.e3 Nbd7 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.c4 Nbd7 6.Nf3 b6).

3.c4 Bb7 4.Bb2 Nf6 5.e3 g6 6.Nf3 Bg7 7.Be2 0–0 8.0–0 e6 9.Re1 (9.d4 a6=) 9...d5 10.cd5 ed5 11.a4 Nbd7 12.d4 c4 13.Nc3 a6 14.Ba3 Re8 15.Bb4 Ne4 16.Qc2 Nc3 17.Qc3 Qc7 (17...Nf6 18.ba6 Ne4 19.Qc2 Ra6 20.Nd2=) 18.Ng5 h6 19.Nh3 (better 19.Nf3=) 19...Re7?? (better 19...Nc5=+) 20.Be7+– Re8 (20...Nc5 21.Bh4+–) 21.Bh4 Nc5 22.dc5 (22.ba6 Ne4 23.Qb2 (23.ab7 Nc3 24.Bf3 Qb7–/+) 23...Ba6 24.Rab1+–) 22...Bc3–+ 23.Bg3? (23.c6 ab5 24.ab5 Bc6 25.Bg3–+) 23…Qc5 0–1. AleksandrNekhoroshik (1680) – Maher_Yasine (1650), lichess.org, 2021.

3.e3 e5 4.Bb2 d6 5.Qf3 d5 6.Be5 Bb7 7.Qg3 (7.Nc3 Nd7 8.Bf4 Ndf6+–) 7...Nf6 8.Bc7 (8.Nc3 Nbd7 9.Nf3 Ne5 10.Ne5 d4+=) 8...Qc8 9.c4 (9.Nf3 Ne4 10.Qf4 Be7+=) 9...g6 (9...Nbd7 10.Nc3 d4 11.Nd5=) 10.Qe5 Qe6?? (better 10...Be7 11.Bd6 Qd8 12.Be7 Qe7 13.Qe7 Ke7+=) 11.Bb8+– 1–0. DEFFM – GuestKYYM, freechess.org, 2019.

3.e4 (--> 1.b4 c5 2.e4 b6 3.b5).

3.Bb2 a6

4.a4 ab5 5.ab5 Ra1 6.Ba1 d6 (6...d5 7.g3=) 7.e3 (7.Nf3=) 7...Bd7 (7...e5 8.Nc3 Nf6 9.e4=) 8.c4 (8.Bd3 Nf6+=) 8...e5 (8...Bf5 9.Nf3+=) 9.Nc3+– Nf6 10.Nf3 (10.Qc2 Be7+–) 10...Be7 (10...Bf5 11.Be2+=) 11.Bd3 0–0 12.0–0 Qc8 (12...Bc8 13.Bb2+=) 13.Qc2 Bg4 (13...h6 14.Bb2+–) 14.Ng5 h6 15.Nh7 Re8 (15...Nh7 16.Bh7 Kh8 17.Nd5+–) 16.Nf6 Bf6 17.Nd5 Bg5? (better 17...Nd7!?+–) 18.Nb6+– Qe6? (18...Qd8 19.Nd5 Nd7+–) 19.f3 Bf5 (19...Bh5 20.Nd5 Rf8+–) 20.Bf5 Be3 (20...Qe7 21.f4 Bf6 22.Nd5+–) 21.de3 Qf6 1–0. GuestYXNL – GuestSDJN, freechess.org, 2020.

4.a4 ab5 5.ab5 d5?? 6.Ra8+– c4 (6...Qc7+–) 7.Rb8 Bb7 (7...Nf6+–) 8.Rd8 (8.Rd8 Kd8 9.Bd4+–) 1–0. GuestHCBR – GuestMPQK, freechess.org, 2018.

4.a4 d5 5.Nf3=.

4.a4 e6 5.e3 a5 (5...ab5 6.Bb5 Bb7 7.Nf3=) 6.Be2 (6.Nf3 Nf6+=) 6...d6 (6...d5 7.f4+=) 7.Bf3 Ra7 8.Ne2 Bb7 (8...Nd7 9.d4+=) 9.Bb7 (9.Nf4 Nd7+=) 9...Rb7+= 10.0–0 Qc7 (10...Nd7 11.Nf4+=) 11.Nf4 h6 (11...Nd7 12.Nh5 Ngf6 13.f4+=) 12.Qh5 Nf6? (better 12...Qc8+–) 13.Bf6+– gf6 14.Ne6 Ke7 (14...Qd7 15.Nf4 Rg8+–) 15.Nc7 (15.Nc7 Rc7 16.Nc3+–) 1–0. DEFFM – gmoon, freechess.org, 2019.

4.a4 e6 5.e4 ab5 6.Bb5 Bb7=.

3.Bb2 Bb7

(--> 1.b4 b6 2.Bb2 Bb7 3.b5 c5).

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

4.c4 e6 5.e3 Nf6 6.Nf3 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4).

4.c4 Nf6 5.Nf3 d5 6.e3 e6 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5).

4.e3 Nf6 5.Nf3 e6 6.c4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4).

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

4.Nf3 d5 5.e3 Nd7 6.c4 e6 7.d4 Ngf6 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 d5 7.d4 Nbd7).

3.e3 Bb7

4.Bb2 e6 5.Nf3 Nf6 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5).

4.Bb2 e6 5.Nf3 Nf6 6.Be2 Be7 7.c4 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4 Be7 7.Be2).

4.Bb2 Nf6 5.Nf3 d5 6.c4 dc4 7.Bc4 Bd5 (7...e6 8.Na3+=) 8.Bd5 Qd5 9.0–0 e6 10.Nc3 Qd8 (10...Qb7 11.Ne5+–) 11.Ng5 (11.Ne5 Nbd7 12.Nc6 Qc7+–) 11...Be7 12.Ne2 (12.f4 0–0+=) 12...0–0 13.Nf4 Nd5 (13...Nbd7 14.Qa4+=) 14.Nfe6 fe6 15.Ne6 Qd6 (15...Qd7 16.Nf8 Bf8 17.d4 cd4 18.Qb3+= (18.Bd4?! Qb5 19.a4 Qd7=)) 16.Qg4+– Rf7?? (better 16...g6 17.Nf8 Bf8+–) 17.Bg7+– Qh2 (17...Rf5 18.Bb2 Rg5 19.Ng5 Qd7+–) 18.Kh2 Nf4 1–0. DEFFM – GuestZMNF, freechess.org, 2019.

4.Nf3 d5 5.c4 f6 (better 5...Nf6!?+=) 6.cd5+– Qd5 7.Nc3 Qd7 (7...Qf5 8.Be2+–) 8.Bc4 e5 9.Qb3 Nh6 10.0–0 Bd6 (10...e4 11.Ne1+–) 11.Be6 Qe7 12.Nd5 Qe6? (12...Qd8 13.d3 Nd7+–) 13.Nc7!! Bc7 14.Qe6 Kd8 15.d4 Nd7 (15...Re8 16.Qh3 Nd7 17.Rd1+–) 16.dc5 Re8 17.Qc4 Nc5 18.Rd1 (better 18.Ba3 Ke7 19.Nd4 Bd6 20.Bc5 Bc5+–) 18...Kc8 (18...Ke7 19.Ba3 Nf7 20.Bc5 bc5 21.Qc5 Bd6 22.Qc2+–) 19.Ba3 Ne6 (19...Kb8 20.Bc5 bc5 21.Rd7+–) 20.Rac1 Nf5 (20...Nf7 21.Qd3 Rd8 22.Qf5 Rd1 23.Rd1+–) 21.e4 Ne7 22.Qe6 Kb8 23.Rc7 (23.Rc7 Rc8 24.Re7 a6 25.Bd6 Ka7 26.Rb7 Kb7 27.Qd7 Rc7 28.Qc7) 1–0. DEFFM – GuestGWZC, freechess.org, 2019.

4.Nf3 e5 5.Ne5+– d5 (5...Nf6 6.d4+–) 6.Qh5 (6.Bb2 Nf6+–) 6...Nh6 (6...Qe7 7.Bb2+–) 7.Bb2 Bd6? (better 7...a6+–) 8.Nc6+– Nc6 (8...Bc6 9.Bg7 Rg8 10.Qh6 Bb7+–) 9.bc6 Bc6 10.Bg7 Qe7 (10...Rg8 11.Qh6 (11.Bh6?! Qf6 12.Nc3 Rg6+–) 11...Qd7 12.Qh7+–) 11.Bh8 0–0–0 (11...Qe6 12.Nc3+–) 12.Bg7 Ng8 13.Ba6 (13.Qh7!? d4+–) 13...Kb8 14.0–0 f6 15.Qh7 Be5 Black intends d4 (15...Qf7 16.Qh8 Kc7 17.e4+–) 16.c3 d4 (16...Qf7 17.d4 Bc7 18.dc5+–) 17.ed4 cd4 18.Bc4 dc3 (18...b5 19.Bb3+–) 19.Nc3 Rd2 (19...Kb7 20.Bg8 Rd7 21.Rad1 Qg7 22.Qg7 Rg7 23.Bd5+–) 20.Rac1 (20.Rae1!? Rd8 21.Ne4 Kb7+–) 20...Rd8 (20...Kb7 21.Qg8 Rd8 22.Qf7 Qf7 23.Bf7+–) 21.Rfd1 Rc8 (21...Re8 22.h3 Rc8 23.Bg8+–) 22.Bg8 Qc5 (22...Rc7 23.Nd5 Qg7 24.Qg7 Rg7 25.Rc6 Rg8+–) 23.Nd5 Qc1 24.Rc1 Bd5 25.Rc8 (25.Rc8 Kc8 26.Bd5 b5 27.Bf6 Bf6 28.Qb7 Kd8 29.Bc6 a6 30.Qd7) 1–0. DEFFM – GuestLCWN, freechess.org, 2018.

3.e3 d5

4.Bb2 Nd7=.

4.Qf3 Nf6 5.Nh3 (5.Bb2 Nbd7=+) 5...Bg4 (6.Qg3 e6=+; 5...e5 6.Nc3=+). solidsteel – bueno, Live Game Caissa's Web, 2005.

4.Nf3 Bg4 5.Be2 Bf3 (5...Nf6 6.Bb2=) 6.Bf3+= e5 7.d3 Nf6 8.0–0 (8.Bb2 Nbd7+=) 8...Bd6 9.Nd2 0–0 (9...a6 10.ba6 Na6 11.c4=) 10.a4 (10.c4 a6+=) 10...Nbd7 (10...Qc7 11.Bb2=) 11.c4+= e4 12.de4 Re8? (better 12...Be5!? 13.Ra2 dc4 14.Nc4 Qc7+–) 13.ed5+– Qc7 14.g3 Ne5 15.Bb2 Nf3 16.Qf3 Be5 17.Be5 Qe5 18.a5 ba5 (18...a6 19.ab6 ab5 20.Ra8 Ra8 21.cb5+–) 19.Ra5 Qc3 20.Ra2 Re7 21.b6! a6 (21...ab6 22.Ra8 Pinning (22.Ra8 Deflection)) 22.d6 Ree8 23.b7 Ra7 (23...Rab8+–) 24.Qc6 (24.Rb1 Rb7 25.Qb7 Qd3+–) 24...Rb7 (24...Qe5 25.Qc7 Rb7 26.Qb7 Qd6 27.Qa6+–) 25.Qb7 Qd3 26.Qc7 Kf8 (26...Rf8 27.Qc5 Rd8 28.e4+–) 27.Rb1 Ne4 (27...Kg8 28.Rb8 h5+–) 28.d7 Nd2 29.de8Q (29.de8B?? Qb1 30.Kg2 Qf1; 29.de8N?? Qb1 30.Kg2 Qf1) 29...Ke8 30.Rb8 (30.Rb8 Qd8 31.Qd8) 1–0. GuestTDMH – GuestPLQD, freechess.org, 2018.

3.e3 Nf6

4.Bb2 e5 5.Be5+– d6 (5...Be7 6.Nc3+–) 6.Qf3 Qd7?? (better 6...d5 7.Nc3 Be6 8.Bf6 Qf6 9.Qf6 gf6+–) 7.Qa8+– (7.Bf6?! Bb7 8.Qh5 gf6+–) 7...Bb7 (7...de5 8.Qb8 Bd6+–) 8.Qb8 Bc8 9.Bb2 (9.Bf6 gf6 10.Nc3 Bg7+–) 9...d5 (9...Be7 10.Qa8+–) 10.Qg3 Ne4 (10...Be7 11.Qg7 Rg8 12.Qh6+–) 11.Qe5 Be7 (11...Qe6 12.Nf3+–) 12.Qg7 Rf8 13.Nf3 h5 14.Ne5 (14.Nc3 Qf5+–) 14...Qe6 15.Nc6 Qc6 16.bc6 Nf6 17.Bf6 Bf6 18.Qf6 Be6 19.c7 Kd7 20.Bb5 Kc8 (20...Kd6 21.Qd8 Rd8 22.cd8Q Bd7 23.Qd7 Ke5 24.Qe7 Kf5 25.Bd3 Kg4 26.h3) 21.Qe7 Rh8 (21...Kb7 22.c8Q! Kc8 23.Ba6 Kb8 24.Qb7) 22.Ba6 1–0. DEFFM – GuestNWFK, freechess.org, 2019.

4.c4 a6 5.Qf3 Ra7 6.Nc3=.

4.c4 d5 5.cd5 Qd5 (5...Nd5 6.Bc4+=) 6.Nc3+= Qd8?? (better 6...Qf5+=) 7.Qf3+– Nbd7 (7...Na6 8.ba6 (worse 8.Qa8 Nb4 9.Qa7 Nc2 10.Kd1 Na1+–) 8...Bd7 9.Nb5+–) 8.Qa8 e6 (8...Qc7 9.Nf3+–) 9.Qa7 Be7 (9...Bd6 10.Nf3+–) 10.Nf3 0–0 11.Be2 Nd5 (11...Bd6 12.0–0+–) 12.Nd5 (12.0–0 Bd6+–) 12...ed5 13.Bb2 Bf6 (13...Bd6 14.0–0+–) 14.Bf6 Qf6 (14...Nf6 15.a4+–) 15.d4 (15.0–0 Qd6+–) 15...cd4 (15...Qg6 16.0–0 c4 17.Qc7+–) 16.Nd4 Nc5 (16...Ne5 17.0–0 Qg6 18.f4+–) 17.0–0 Ne4 (17...Bb7 18.Nc6! Bc6 19.Qb6 Bb5 20.Qf6 gf6 21.Bb5+–) 18.Nc6 (18.Rac1 Re8+–) 18...Nc3 (18...Qd6 19.Qb6 Bd7 20.Rac1+–) 19.Bf3 (19.Bd3 g6+–) 19...Nb5 20.Qb6 Nc3 (20...Na7 21.Qa7 Qc6 22.Rac1+–) 21.Qc5 Be6 (21...Na4 22.Ne7 Kh8+–) 22.Ne7 Kh8 23.Bd5 (better 23.Nd5 Qd8 24.Nc3 Qc8+–) 23...Nd5 (23...Re8 24.Be6 Ne2 25.Kh1 Qe6 26.Rfe1+–) 24.Nd5 Qd8 25.e4 Re8 (25...g6 26.a4 Bd5 27.ed5+–) 26.Rfd1 (26.Nc7 Qc8+–) 26...Qg5 (26...Qh4 27.Nc7 Rc8 28.Rac1+–) 27.f4 (27.Rac1 Qg6 28.f3 Bd5 29.Rd5 Qa6+–) 27...Qg4 (27...Qh4 28.Rac1 Rb8 29.Qc7+–) 28.f5 Bd5 29.Qd5 h6 (29...f6 30.Qc6 Rb8 31.Rab1+–) 30.Qf7 Re4 (30...Qe4 31.a4 Qc6+–) 31.Rd8 Kh7 (31...Re8 32.Re8 Kh7 33.Qg8) 32.Qg6! Qg6 33.fg6 Kg6 34.a4 Re7 35.a5 Ra7 36.a6 Kf7 37.Rb8 g6 38.Rb7 (38.Rb7 Ke6 39.Ra7 Kf5 40.Rg7 Kf6 41.Rd7 Ke5 42.Ra5 Ke6 43.a7 Kd7 44.a8Q Kc7 45.Rc5 Kd6 46.Qd5 Ke7 47.Rc7 Kf6 48.Rf7) 1–0. GuestGRVN – GuestDNRL, freechess.org, 2019.

4.Nf3 e6 5.c4 d5 6.Bb2 dc4 (6...Bd6 7.d4=) 7.Bc4 Bd6 8.a4 (8.d4 cd4 9.Qd4 Bb7=) 8...0–0 9.0–0 Nbd7 10.d4 e5?? (better 10...Bb7=) 11.de5+– (11.Ne5?! Qc7 12.Nf3 Bb7+–) 11...Ne5 12.Ne5 Be5 (12...Be6 13.Nc6 Bh2 14.Kh2 Qd1 15.Rd1 Ng4 16.Kg3 Bc4 17.a5+–) 13.Be5 Be6 14.Be6 (14.Na3 Nd7 15.Bc3 Qe7+–) 14...fe6 15.Nc3 Nd5 (15...Qd1 16.Rad1 Rfd8 17.e4+–) 16.Qg4 g6 (16...Rf7 17.Rad1 Qc8+–) 17.Qe6 (17.Qe6 Rf7 18.Nd5+–) 1–0. DEFFM – GuestKHDJ, freechess.org, 2019.

3.Nf3 Bb7

4.e3 d6 5.Bb2 (5.d4 Nf6+=) 5...Nd7 (5...e5 6.Nc3=) 6.Be2+= Ngf6 7.d4 (7.0–0 e5=) 7...g6 (7...cd4 8.ed4 e6 9.0–0=) 8.0–0 (8.dc5 bc5 9.Nbd2 Bg7=) 8...Bg7 9.Nbd2 0–0 10.c4 e5 (10...cd4 11.ed4 d5 12.Ne5=) 11.de5+= de5 (11...Ne8!?+=) 12.Ne5+– (12.Be5?! Ne5 13.Ne5 Ne4 14.Ne4 Be5=) 12...Ne5 13.Be5 Qe7 14.Bb2 (14.Bf3 Qe5 15.Bb7 Rad8+=) 14...Rfd8 15.Qc2 Rd2? (better 15...a6+–) 16.Qd2+– Ne4 17.Qc2 Rd8 (17...Bb2 18.Qb2 Nd6 19.Rfd1+–) 18.Rad1 (18.Rfd1 Nd6+–) 18...Rd1 (18...Bb2 19.Rd8 Qd8 20.Qb2+–) 19.Rd1 Bb2 20.Qb2 Qh4 (20...Bc8 21.Bf3 Bf5 22.Be4 Be4 23.Qd2+–) 21.f3 Qf2 22.Kh1 Nd6 23.Qa1 (23.Qa1 Ne8 24.Bf1 Bf3 25.gf3 Qf3 26.Bg2+–) 1–0. Anonymous – Anonymous, lichess.org, 2020.

4.e3 Nf6 5.Bb2 g6 6.Be2 Bg7 7.0–0 d5 8.c4 0–0 9.d4 cd4 10.Nd4 a6 11.a4 ab5 12.ab5 Ra1 13.Ba1 Ne4 14.Nd2 e5 (14...Nd2 15.Qd2 dc4 16.Bc4=) 15.N4f3 Nd2 16.Qd2 e4 17.Bg7 (17.Nd4 dc4 18.Bc4 Bd5+=) 17...Kg7 (17...ef3!? 18.Bf8 fe2 19.Qe2 Qf8+–) 18.Nd4+= dc4 19.Bc4 Nd7 20.Nc6 Bc6 21.bc6 Ne5 22.Bd5 Qd6 (22...f5 23.Qd4 Qc7 24.Rb1+=) 23.Qd4 Kg8 (23...Rd8 24.Rc1 f6 25.Be4+–) 24.Qe4 Re8?? (better 24...Rd8+–) 25.f4 (25.f4 Nf3 26.Qf3+– (26.gf3?! Re4 27.fe4 Qa3=; 26.Rf3? Re4 27.Be4 f5–+)) 1–0. guest170 – anon4, chessclub.com, 2018.

2.b5 c4

3.Bb2 d5 4.Nf3 Bd7 (4...Nf6 5.e3=) 5.a4 a6 6.d3 (6.e4 de4 7.Ne5 ab5 8.Nf7 Kf7 9.Qh5 g6 10.Qd5 e6 11.Qb7 Nc6 12.ab5 Ra1 13.Ba1 Na5 14.Qe4 Nf6–/+) 6...ab5=+ 7.ab5 (7.dc4 dc4 8.ab5 Ra1 9.Ba1 Qa5 10.Bc3 Qb5=) 7...Ra1 8.Ba1 Bb5 9.dc4 (9.Nc3 Qa5=+) 9...Bc4 (9...dc4?! 10.Qd8 Kd8 11.Ne5=) 10.Ne5 e6 (10...b5!?=+) 11.Nc4= dc4 12.Qd8 Kd8 13.e3 b5 14.Na3 Ba3 (14...Bb4 15.Ke2 Nf6 16.Bf6 gf6 17.Nb5+=) 15.Bg7+= Bb4 (15...Bb2 16.Bb2 f6 17.Be2+=) 16.Ke2+– Bc3 17.Bc3 f6 18.g3 (better 18.g4+–) 18...Nd7 (better 18...Nc6!?+–) 19.Bh3+– Ke7 (better 19...Kc7+–) 20.Ra1 Nh6 (20...Ne5 21.Ra6 Kf8 22.Be6+–) 21.Bb4 Kf7 22.Ra7 Rd8 23.Ba5 Ke8 (23...Re8 24.Rd7 Re7 25.Rd6+–) 24.Bd8 Kd8 25.Be6 Nc5 (25...Nf8 26.Bd5+–) 26.Rh7 Ne6 27.Rh6 Ke7 28.Rh8 (28.Rh7 Kd8+–) 28...Kd6 (28...Nc7 29.Rb8 Nd5 30.Kd2+–) 29.h4 b4 30.Rb8 b3 (30...Kc5 31.h5 Ng5 32.h6+–) 31.cb3 c3 (31...cb3 32.h5 Ng5+–) 32.Rb6 Kd5 33.Re6! Ke6 34.Kd3 1–0. DEFFM – RajaSakti, freechess.org, 2018.

3.Bb2 d6 4.Nf3 (4.e4 Qa5 5.a4 e5+=) 4...h6 (4...d5!?=) 5.e3 (5.e4 Nf6+–) 5...e5 (5...d5 6.d3 cd3 7.Bd3+=) 6.Bc4 0–1. GuestNJRN – naraindra, freechess.org, 2017.

3.e4 e5 4.Bc4+– Qb6 (4...Nf6 5.Qe2+–) 5.Bb2 (5.Qh5!? Qg6 6.Qg6 hg6+–) 5...Nf6+– 6.Be5 (better 6.Qe2 Bc5 7.Be5 Bf2 8.Qf2 Qf2 9.Kf2 Ng4 10.Kg3 Ne5 11.Bb3+–) 6...Ne4?? (6...Qc5!? 7.Bf6 Qc4+–) 7.Qf3 (7.Qe2 d6 8.Bc3 Qf2 9.Qf2 Nf2 10.Kf2 Be6 11.Be6 fe6+–) 7...Bc5? (better 7...Ng5 8.Qe2 Ne6+–) 8.Qf7 (better 8.Qe4 Bf2 9.Kf1+–) 8...Kd8 1–0. DEFFM – GuestJTLM, freechess.org, 2016.

3.e4 e6 4.Bc4+– b6 (4...Nf6 5.e5 Qc7 6.Qe2+– (worse 6.ef6 Qe5 7.Ne2 Qa1=+)) 5.Nf3 Nc6?? (better 5...Bb7 6.d3 d5 7.ed5 ed5+–) 6.bc6+– Qc7 1–0. DEFFM – GuestLXCQ, freechess.org, 2018.

3.e4 g6 4.Bb2+– f6 (better 4...Nf6!? 5.Bc4 d6+–) 5.Bc4 b6?? (5...a6+–) 6.Bd5 Nc6 7.bc6 dc6 (7...Rb8 8.Nf3+–) 8.Bc6 Kf7 (8...Bd7 9.Ba8 Qa8+–) 9.Ba8 h5 (9...e6 10.Qf3+–) 10.Bd5 e6 11.Bb3 Rh7 12.Nf3 White prepares the advance e5 12...Ne7 13.e5 f5 14.Ng5 Kg8 15.Ne6 Be6 16.Be6 Kg7 17.Bb3 (17.0–0 Nd5 18.Qf3 Nc7+–) 17...Nc6 18.e6 Kh6 19.Qf3 Nb4 20.a3 Bg7 21.Qe3 g5 22.e7 Qe8 23.Qe6 Qg6 (23...Bf6 24.Qf6 Qg6 25.Qg6 Kg6 26.e8Q Rf7 27.Qf7 Kh6 28.Qg7) 24.Qg6 (24.Qg6 Kg6 25.e8Q Kh6 26.Qe6 Bf6 27.Qf6) 1–0. DEFFM – jampani, freechess.org, 2019.

3.e4 d5

4.ed5 Qd5 5.Nc3 Qe5 6.Qe2 Qe2 7.Be2 Be6 8.Nf3 a6? (better 8...Nf6+–) 9.Ng5+– ab5 10.Ne6 fe6 11.Nb5 Nc6 (11...Kd7+–) 12.Nc7 Kf7 13.Na8 b5 (13...Nf6 14.Rb1 g6 15.Bc4+–) 14.Rb1 Nd4 (14...Nf6 15.Nc7+–) 15.Bd1 (15.c3 Ne2 16.Ke2 Nf6+–) 15...Nf6 16.Nc7 g6 (16...Nf5 17.Rb5 g6 18.Rb8+–) 17.Nb5 (17.Bb2 Nc6 18.Bf3 Nd8+–) 17...Nb5 (17...Nc6 18.Be2+–) 18.Rb5 Bh6 19.a4 (19.Rc5!? Rb8 20.Bf3 Rb1+–) 19...c3 20.Rb3 cd2 (20...Ne4 21.d3 Bc1 22.de4 Bd2 23.Ke2+–) 21.Bd2 Bd2 22.Kd2 Rd8 23.Rd3 Ne4 24.Ke3 Rd3 (24...Nd6+–) 25.cd3 Nc3 26.Bb3 Kf6 27.Rc1 Nd5 28.Bd5 ed5 29.a5 (29.a5 Kf7 30.a6 g5 31.a7 d4 32.Kd4 g4 33.a8Q h6 34.Rc7 h5 35.Qe4 Kf6 36.Qe7 Kf5 37.Qf7 Kg5 38.Rc5 Kh6 39.Rh5) 1–0. DEFFM – GuestDPPTll, freechess.org, 2019.

4.ed5 Qd5 5.Nc3 Qe5 6.Qe2 Qe2 7.Be2 (7.Nce2?! e5=; 7.Ke2?! Be6=) 7...Be6 8.Nf3 g6? (better 8...Nf6!?+–) 9.Ng5+– Bg7 10.Ne6 fe6 11.Bb2 Nf6 12.Bc4 Nd5 13.0–0 0–0?? (better 13...Kd7+–) 14.Nd5 ed5 15.Bd5 Kh8 (15...e6 16.Bb7 Bb2 17.Rab1+– (worse 17.Ba8 Ba1 18.Ra1 Na6+–)) 16.Bg7 (16.Bg7 Kg7 17.Bb7+–) 1–0. DEFFM – TheWarriorsWay, freechess.org, 2019.

2.b5 Nf6

3.Bb2 a6 4.a4 ab5 5.ab5 Ra1 6.Ba1 Qa5 (6...d5 7.Nf3=) 7.Bf6 ef6 8.c4 (8.Nc3 Bd6+=) 8...d5 9.cd5 Qb5 10.Nc3 Qb4 11.e3 Nd7 12.Qc2 Bd6 13.Nf3 0–0 14.Bd3 c4 (14...h6!?=) 15.Bh7+– Kh8 16.Bf5 g6 (16...Ne5 17.Ne5 Be5 18.0–0+–) 17.Bd7 Bd7 18.0–0 Bf5 (18...Rb8 19.Rb1 Qa3 20.Nb5 Bb5 21.Rb5+–) 19.e4+– Bg4 20.Rb1 Qc5 21.Nb5 (21.d4 cd3 22.Qd3 Ra8+–) 21...Bf4 (21...Bf3 22.Nd6 Qd6 23.gf3+–) 22.d4 Qe7 23.Ne1 Bd7 24.g3 Bh6 (24...Bb5 25.Rb5 Bd6 26.Ng2+–) 25.d6 Qe6 26.d5 Qe8 27.Nc7 Qc8 (27...Qe5 28.Qc4 Rb8 29.Rb6+–) 28.Qc4 Bh3 29.Qc3 Qd7 (29...Bg7 30.Nd3+–) 30.Qf6 Bg7 (30...Kg8 31.Rb7 Qa4 32.Qf3+–) 31.Qh4 Kg8 32.Rb7 Ra8 (32...Qc8 33.Rb6+–) 33.Na8 Qb7 34.Qh3 Qa8 35.Qh4 Qa1 (35...Be5 36.d7 Bc7 37.Qe7+–) 36.d7 Qe1 (36...Bf6 37.d8Q Bd8 38.Qd8 Kg7+–) 37.Kg2 (37.Kg2 Bf6 38.Qf6 Qe4 39.Kh3 Qd5 40.d8Q Qd8 41.Qd8 Kg7 42.Kh4 f6 43.Qe7 Kh8 44.Qf6 Kg8 45.Kg5 Kh7 46.Qe7 Kg8 47.Kg6 Kh8 48.Qd8) 1–0. DEFFM – GuestQPRL, freechess.org, 2018.

3.Bb2 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.b5 c5).

3.Bb2 Ne4 4.e3 Qb6 (4...d5 5.Nf3=) 5.a4 a5 (5...d5 6.a5 Qd6 7.Nf3=) 6.Nf3+= d5 7.Be2 Bg4 8.h3 Bh5 9.d3 Nd6 10.0–0 f6 11.Nbd2 e5 12.c4 Bf7 13.cd5 Bd5 14.e4 (14.Nc4 Qd8+=) 14...Be6 15.Nh4 g5 (15...Nd7 16.Bg4 Bf7 17.Rc1+=) 16.Bh5+= Bf7 (16...Ke7 17.Nhf3+=) 17.Qb3 (17.Bf7 Nf7 18.Nc4 Qd8+–) 17...Qc7 (17...Bh5!? 18.Qe6 Be7+=) 18.Qe6+– Qe7 19.Bf7 Nf7 20.Qc8 Nd8 21.Nf5 Qd7 22.Qd7 Nd7 23.Nc4 b6 24.Nce3 Kf7 (24...Ne6 25.Rad1+=) 25.Nd5 Ra7 (25...Ne6 26.g3+–) 26.h4 (26.Rac1 Ne6+–) 26...g4 (26...gh4 27.f4 Ke6 28.fe5 fe5 29.Rf4+–) 27.Nfe3 (27.f4 gf3 28.Rf3 Rg8+–) 27...h5 (better 27...Rg8!?+–) 28.Nc4+– Rb7 29.f4 gf3 (29...ef4 30.Rf4 Rh6 31.Raf1+–) 30.Rf3 Be7? (30...Ke6 31.Nf6! Nf6 32.Rf6 Kf6 33.Be5 Ke6 34.Bh8 Nf7+–) 31.Ne5 Ne5 32.Be5 Ke6 (32...Rh6 33.Raf1+–) 33.Bf6 Rf8 (33...Bf6 34.Rf6 (34.Nf6?! Rh6 35.Raf1 Rf7+–) 34...Ke5 35.Raf1+–) 34.Be7 (34.Ne7?! Rf6 35.Nd5 Rf3 36.gf3 Kf7+–) 34...Rf3 35.Bd8 Rd3 36.Nf4 Kd7 37.Nd3 Kd8 38.Nf4 Re7 39.Re1 Re5 40.Nd5 Re6 41.e5 Kc8 (41...Ke8 42.Nc7 Kd7 43.Ne6 Ke6 44.g4 hg4 45.h5+–) 42.Nf4 (42.Nf4 Re7 43.Nh5+–) 1–0. DEFFM – GuestXQVV, freechess.org, 2019.

3.c4 d5 4.cd5 Nd5 (4...Qd5 5.Nf3=+) 5.Bb2= f6 6.e3 e5 7.a4 (7.Qb3 Nb6=) 7...Nb4 8.Bc4 (8.Nc3 Bf5 9.e4 Be6=+) 8...Bf5–/+ 9.Na3 Nd7 (9...Bd3 10.Be6–/+) 10.Qh5 (10.Qf3!? Bd3 11.Bd5=+) 10...g6–/+ 11.Qf3 (better 11.Qd1!?–/+) 11...Nb6–+ 12.Bb3?? (better 12.Bc3 Nc4 13.Bb4–+) 12...c4! 13.Ba2 (13.Nc4 Nc2 Double attack; 13.Bc4 Nd3 Double attack (13...Na4 Deflection)) 13...Nd3 14.Ke2 (14.Kf1 Nb2 15.e4 Be6–+) 14...Nb2 15.Qb7 (15.e4 Be6–+) 15...Bd3 (better 15...Qd3 16.Ke1 Be4–+) 16.Kf3 (16.Ke1 Ba3 17.Qg7 Rf8 18.Qh7 N2a4–+) 16...Qd5 (better 16...f5 17.Qc6 Kf7–+) 17.Qd5 Nd5 18.a5 (18.e4 Nf4 19.g3–+) 18...Nb4 (better 18...Ba3 19.e4 Nc7–+) 19.Bb3 0–1. AleksandrNekhoroshik (1780) – Sametry (1805), lichess.org, 2021.

3.e3 g6 4.Bb2 Bg7 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.b5 c5).

3.Nf3 a6 4.e3 d5 5.Bb2 e6 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.b5 c5 5.Nf3 a6).

3.Nf3 d6 4.c4 a6 5.Nc3 (5.ba6 Na6 6.Nc3 g6=) 5...ab5=+ 6.cb5 d5 7.e3 (7.d4 Ne4 8.Qc2 Nc3 9.Qc3 cd4 10.Qd4 Bf5=) 7...Bf5 8.Bb2 Nbd7 (8...e6 9.h3=+) 9.h3 (9.Nh4 Bg4 10.f3 Be6=+) 9...e6 (9...e5 10.g4 Be6 11.Ng5=+) 10.d3 (10.Nh4 Bg6=) 10...Bd6=+ 11.Be2 h6 (11...e5 12.g4 Be6 13.Ng5=+) 12.0–0 0–0 13.a4 (13.Qb3 Qb6=+) 13...Re8 (13...e5 14.Nd2=+) 14.Qc2 (14.Qb3 Ne5 15.Ne5 Be5=+) 14...b6 (14...e5 15.e4 Be6 16.ed5 Nd5 17.Ne4=+) 15.Qb3 Qc7 (15...Qe7=+) 16.a5 (16.Rac1!?=+) 16...Ra5 (16...ba5 17.Rfc1–/+) 17.Ra5 ba5 18.Rc1 (18.Ra1 Ra8–/+) 18...Nb6 19.Na4 e5 20.Bc3 Na4 21.Qa4 Qb7 22.Qa2 (22.Ra1 Bd7–/+) 22...d4 (worse 22...Qb5 23.d4 Bd3 24.Bd3 Qd3 25.dc5 Bc5 26.Ne5=+) 23.Ba5 Ra8 (23...Qb5 24.Rb1 Qd7 25.e4–+) 24.Ne5 Be5 25.Bf3 Be4! 26.Be4 (26.de4 Qb5 Combination; 26.Be4 Ne4 Decoy) 26...Ne4 27.de4 de3 (27...Qb5?! 28.Qd5 Ra5 29.Qe5 de3 30.fe3=+) 28.fe3 Qe4 (28...Qe4 29.Kf1 Bc7–+; 28...Qb5?! 29.Qd5 Ra5 30.Qe5=+) 0–1. GuestMHMG – Guestxxx, freechess.org, 2018.

3.Bb2 e6

4.c4 b6 5.e3 Bb7 6.Nf3 (--> 1.b4 e6 2.Bb2 Nf6 3.b5 b6 4.e3 Bb7 5.Nf3 c5 6.c4).

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

3.Bb2 g6

(--> 1.b4 Nf6 2.Bb2 g6 3.b5 c5).

4.e3 Bg7 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.b5 c5).

4.e3 Bg7 5.Nf3 0–0 (--> 1.b4 Nf6 2.Bb2 g6 3.e3 Bg7 4.b5 0–0 5.Nf3 c5).

2.bc5 Qa5

3.Ba3 Nc6 4.c3 Nf6 5.Qb3 e6 6.Bb4 Nb4 7.cb4 Qc7 8.e3 a5 9.ba5 Qa5 10.Be2 Bc5 11.Nf3 Bb4 12.0–0 Ne4 13.d3 Nc3 14.Nc3 Bc3 15.Rac1 Bf6 16.d4 0–0 17.Nd2?? (17.Rc2!?=) 17...Qa2?? (better is 17...Qd2 18.Rc2 Qa5–+) 18.Qc3= Qa3 19.Qc7 Bd8 20.Qg3 Qb2 21.Rcd1?? (21.Rfd1 d5 22.Bd3 Be7=) 21...b6?? (better is 21...Ba5–+) 22.Bf3 Ra7 23.Nc4 Qb4 24.Ne5 Bc7 25.Rb1 Qa3 26.Ra1?? (better is 26.Qh4=) 26...Qa1–+ 27.h4 (27.Qh3 Be5 28.Qh5 Bd4 29.Ra1 Ra1 30.Bd1 g6–+) 27...Qa5 (27...Qc3 28.Qh3–+) 28.h5 Ba6 29.h6 g6 30.Rc1 Be5 (better is 30...Qa3 31.Rc2–+) 31.de5 Qa3 32.Rd1 Qe7 33.Rd6 f6 34.Rb6 fe5 (better is 34...Qc5!? 35.Rd6–+) 35.Qe5 Qf6 36.Qa5 Rc8 37.Bd1 Rc1 38.Rb8 (38.Qd2 Qa1 39.Rd6 Bc4–+) 38...Kf7 39.Qa4 (39.Rf8 Kf8 40.Qa3 Kf7 41.Qc1–+) 39...Be2 (better is 39...Bc4 40.Rb1 Rb1 41.Qc4 Rd1 42.Kh2 Ra5–+) 40.Qa7 (40.Qb4 Rd1 41.Kh2 Qe5 42.Qf4 Qf4 43.ef4–+) 40...Rd1 (< 40...Bd1 41.Qa3 Bf3 42.Qc1+–) 41.Kh2 Qh4 0–1. pinecrest1981 – PriceWiZarD12, Live Game Caissa's Web, 2004.

3.Ba3 e6 4.e3 Nf6 5.Nf3 Bc5 6.Qc1 (6.Bc5 Qc5 7.d4 Qc7=) 6...d6 7.Bc5 dc5 (7...Qc5 8.d4 Qc7 9.Bb5 Bd7 10.Bd3=) 8.Qa3 Nc6 (8...Qc7 9.Nc3=) 9.Qa5 Na5 10.Bb5 (10.Nc3 Nc6=) 10...Bd7 11.Bd7 Nd7 (11...Kd7 12.Ne5 Ke7 13.Nc3=) 12.Nc3 0–0 (12...Nc6 13.Ne4=) 13.0–0 (13.Rb1 Rfd8=) 13...f5 14.Rfb1 e5 (14...b6 15.Nb5=) 15.e4 f4 (15...Rad8 16.d3=) 16.Nd5+= b6 17.Ne7 (17.a3 Nc6+=) 17...Kf7 18.Nf5 Nc6 (18...Rfd8 19.h4 Kf6 20.d3=) 19.Ng5 Kg8 (19...Kg6 20.Ne6 Rf7 21.Nc7=) 20.Ne6 Rf7 21.Neg7 (better is 21.Nc7!? Rb8 22.Nd5=) 21...Rg7–/+ 22.Ng7 Kg7 23.f3 Kf6 24.d3 c4 25.dc4 Rc8 26.Rd1 Ke6 27.Rd2 Na5 28.Rad1 Nc5 29.Rd6 Kf7–/+ 30.Rd8 Rd8 31.Rd8 Nc4 32.Rc8 a5 33.Rc6 Kg7 34.Kf2 a4 35.g3 fg3 36.hg3 Kf7 37.Ke2=+ a3 38.f4 ef4 39.gf4= Ke7 40.e5 Kf8 41.Rc7 h5 42.Rh7 Ne6 43.Kd3 b5 44.Ke4 Nd2 45.Kf5 Nd4 46.Kg6 Nc4 47.Kf6+– Kg8 48.Rd7 Nc6 49.e6 Ne3 50.e7 Ne7 51.Ke7 Nc2 52.f5 (52...Ne3 53.f6 Nf5 54.Ke8+–) 1–0. Langheld – Bendig,Frank, corr Gambit trn, 1993.

3.Ba3 g6 4.Nc3?? Qa3–+ 5.g3 (5.e3 Nf6–+) 5...Bg7 6.Nb5 (6.Rb1 Bc3 7.Rb3 Bd2 8.Qd2 Qa2–+ (8...Qc5 9.Rc3 d6 10.Rc5 dc5 11.Bg2+–)) 6...Qc5 7.Rb1 Nf6 8.Bg2 Ng4 (8...a6!? 9.Nc3–+) 9.e3 0–0 (better 9...a6 10.Nc3 Bc3 11.Qg4 Bf6 12.Bb7 Bb7 (worse 12...Qc2 13.Qe4 Qe4 14.Be4–+) 13.Rb7 Qc2–+) 10.Qg4–/+ Qc2 11.Qd1 Qa2?? (better 11...Qd1 12.Kd1 Nc6–/+) 12.Nc7+– Na6 13.Na8 Qc4? (better 13...d5 14.Qb3 Qb3 15.Rb3 Bf5+–) 14.Bb7?? (better 14.Rc1 Qb4 15.Nc7 Nc7 16.Rc7+–) 14...Bb7 15.Rb7 Qc6 16.Ra7 (better 16.Qf3 Qc1 17.Qd1=) 16...Ra8?? (better 16...Qh1 17.Ra6 Qg1 18.Ke2 Qh2–/+) 17.Ra8+– Qa8 18.Nf3 Nc5 19.0–0 Nd3 20.Ng5 (20.Qb3 Qf3 21.Qd3 d5+–) 20...h6 (20...Qd5 21.Qc2 Bf6 22.Nf3+–) 21.Nf3 (21.Qb3 Ne5 22.f4 hg5 23.fe5 e6+–) 21...Nb2 (21...e5+–) 22.Qe2 e6 23.Ne1 (23.d4!? Na4+–) 23...Qc6 24.Nd3 Nc4 25.Rc1 Qb5 26.Nf4 d5 27.Qf1 (27.d3 Nd6+–) 27...g5 (better 27...Be5+–) 28.Nd3 (better 28.Nh5!?+–) 28...Qa5 29.Ra1?? (better 29.Qd1+–) 29...Qd2 (better 29...Ba1 30.Qe2 Qd2–+) 30.Nc5?? (better 30.Ra8 Kh7 31.Qb1+–) 30...Qb4?? (better 30...Ba1 31.Qa1 Ne3 32.Ne6 fe6 33.Qa8 Kh7 34.Qa7 Kg6 35.fe3 e5–+) 31.Nd3 (better 31.Ra8 Bf8 32.Nd7+–) 31...Qd2 32.Ra8 Kh7 33.Qb1 h5? (33...f5 34.Nc5 Ne3 35.Ne6 Bb2+–) 34.Nf4 (better 34.Ne5! f5 35.Nf3+–) 34...Kh6+– 35.Ng2 (better 35.Ra2!? Qc3 36.Nh5+–) 35...Ne5+= 36.h4 Nf3 37.Kf1 Nh2 38.Kg1 Nf3 39.Kh1?? (better 39.Kf1 Nh2 40.Kg1 Nf3=) 39...Qf2–+ 40.hg5 Kg5 41.Ra2 (41.e4 Qg3 42.Qc1 Kg6 43.Nf4 Kh7 44.Ra2 de4 45.Rd2 Qf4 46.Qd1 Qg3 47.Qf3 ef3 48.Rc2 Qe1 49.Kh2 Be5 50.Kh3 Qg3) 41...Qg3 42.Nf4 Kh4 (better 42...Qh4 43.Kg2 Kg4 44.Qb4 Qh2 45.Kf1 Qa2 46.Nd3 d4 47.Qb2 Qb2 48.Nb2 de3 49.Nd3–+) 43.Ng2 (better 43.Rg2 Qe1 44.Qe1 Ne1 45.Rg7+–) 43...Kg4–+ 44.Ra4 Kg5 45.Ra2 Qh2 (45...Qh3) 0–1. hamidrezaderakhshan – burakbarlas, lichess.org, 2020.

3.a4 Na6!? =.

3.a4 g6 4.Bb2+/– Nf6 5.c3 (5.Bd4 Nc6 6.c3 e5=+) 5...Qc5= 6.e3 Bg7 7.Nf3 (7.d4 Qc6 8.Nf3=) 7...0–0+/– 8.Na3 (better is 8.Ba3!? Qc6 9.Be7+/–) 8...d5= 9.Nb5 a6 10.Ba3 Qb6 11.Nbd4 Re8 12.Rb1 Qc7 13.h3 (13.Be2!?=) 13...e5=+ 14.Ne2 Bf5 15.Rc1 (15.d3 e4 16.de4 Ne4=+) 15...Nbd7–/+ 16.g4 (16.Ng3 Be6=+) 16...Be4 17.Ng3 Bf3 (17...Red8 18.d3 Bf3 19.Qf3=+) 18.Qf3 e4 19.Qd1 Ne5 20.Be2 Nfd7 (20...Nc4 21.Bb4–/+) 21.d4 (21.g5 Nc4 22.Bb4 a5 23.Bc4 dc4–+ (23...Qc4?! 24.d3 ed3 25.Bd6–+; 23...ab4?! 24.Bd5 Nc5 25.0–0 bc3 26.dc3=+)) 21...ed3 22.Bd3 Nd3 23.Qd3 Ne5 24.Qe2 (24.Qc2!?–+) 24...Nc4 25.Bb2 (25.Bb4 Ne3! 26.fe3 Qg3 27.Kd2 d4 28.cd4 Bd4–+) 25...Ne3! 26.Qe3?? (26.fe3 Qg3) 26...Re3 27.fe3 Qg3 28.Kd2 (28.Kd1 Qg2 29.Re1 Qb2–+) 28...Qg2 (28...Qf2 29.Kd3 Re8 30.Rhe1 Qb2 31.g5–+) 29.Kd3 Qe4 (better is 29...Qb2 30.g5–+) 30.Kd2 Rd8 (30...b5 31.Rcd1 Bh6 32.a5–+) 31.Rhe1 Bh6 (31...b6 32.a5–+) 32.c4 (32.a5–+) 32…Be3! (33.Re3 dc4 34.Ke2 Qg2 35.Ke1 Qd2 36.Kf1 Qe3–+) 0–1. Dopper,Johan – Krijger,Martin, 1991.

3.Bb2 Qb5 4.Nc3 (4.Bd4 Nc6 5.e3 Qa5+/–) 4...Qb2 (4...Qc5 5.e3+=) 5.a3+/– g6? (better is 5...Nc6!? 6.Ra2 Qa2 7.Na2 e5+/–) 6.Ra2+– (6.Ra2 Qa2 7.Na2+–) 1–0. Fournier,Frederic (1990) – NN, Active, 2004.

3.Bb2 Nc6 4.Nf3 Nf6 5.Nc3 (5.e3 Qc5 6.Bf6 ef6+=) 5...e6 (5...e5 6.e3 Bc5 7.Nb5=) 6.Rb1 (6.d4 b6 7.Nd2 bc5=) 6...Bc5 7.e3 Bb6 (7...0–0 8.Bb5=) 8.Be2 (8.Nb5 0–0+= (8...Qa2?? 9.Bc4 Qa4 10.Ra1+–)) 8...d5 9.0–0 Bd7 (9...0–0 10.Nb5=) 10.d4 (10.Nb5 0–0+= (10...Qa2?? 11.Ba3+–)) 10...Bd8 11.Bd3 (11.Nb5 Be7=) 11...a6 (11...Nb4 12.Ne5=) 12.Ne2 (12.e4 0–0+=) 12...Be7 3.Ng3 (13.Bc3 A) 13...Qa2?? 14.Ra1 (14.Rb7?! Qa4+=) 14...Qa1 15.Qa1+–; B) 13...Qc7=) 13...Qd8 (13...b5 14.a3=) 14.Qe2 (14.e4 de4 15.Ne4 b5+=) 14...0–0 15.c4 (15.Ne5 b5=) 15...Rc8 (15...Nb4 16.Ne5=) 16.cd5 Nd5 17.Rfc1 Bf6 (17...b5!?=) 18.a3 g6 19.Ne5 (19.Ne4 Bg7+/–) 19...Ne5 20.de5 Bg7 21.Rc8 Qc8 22.Rc1 Qb8 23.f4 b5 24.h3 Rc8= 25.Rc8 Bc8 26.Qc2 Bb7 27.Kh2 Qc8?? 28.Qc8= Bc8 29.Ne2 Bf8 30.Bd4 Bb7 31.Nc3?? Nc3–+ 32.Bc3 a5?? 33.Ba5 Ba3 34.Bb5 Be7 35.Bd2 Bd5 36.Be2 h5 37.g4 hg4 38.hg4 Kg7 39.Kh3 Kh7 40.Bd1 Bf8 41.Bb3?? Bb3–+ 42.Bc1 Bd5 43.Bd2 Bh6 44.Bc3 Bf8 45.Bd4?? Kg7 46.Kg3 Be7 47.f5? gf5 48.gf5 Kg8 49.fe6 fe6 50.Kf4 Kf7 0–1. Fournier,Frederic (2005) – BobEsponjaja (2065), Active Blind, 2008.

3.c3 Nc6 4.e3 (4.d4 e5 5.e3 Nf6+=) 4...e6 (4...Qc5 5.d4 Qa5 6.d5=) 5.Nf3 (5.d4!?+=) 5...Bc5= 6.d4 Bb6 (6...Be7 7.Bd2=) 7.Bd3 d5 8.Qc2 Nge7 9.Nbd2 0–0 (9...Bd7 10.Rb1 Rc8 11.0–0+=) 10.Bb2 (10.Rb1 Bd7 11.Rb3+/–) 10...Ng6 11.0–0 Nce7 (11...Bc7 12.Nb3 Qa4 13.Qe2+=) 12.h3 (12.c4 Bd7+=) 12...Bd7 13.Rfe1 (13.c4 Rfc8+=) 13...Bb5 14.Bb5 (14.c4 dc4 15.Nc4 Bc4 16.Qc4 Rac8+=) 14...Qb5= 15.a4 Qa6 16.e4 Ba5 17.ed5 Nd5 Exerts pressure on the backward pawn 18.Rab1 (18.c4 Rfc8=) 18...Rfd8 19.Ne5 Rac8 The pressure on the backward pawn c3 grows 20.Ng6 hg6 21.Nf3 Rc7 22.Qe2–/+ Rcc8 23.Qa6 ba6+= 24.Red1 Rb8 25.Ra1?? Rd7 26.Nd2?? Rdb7 27.Nb3?? Rb3–+ 28.Rab1 Rb2 29.Rb2 Rb2 30.Rc1 Bc3 31.Rc3 Nc3 32.Kh2 Rb1 33.g3 Ne2 34.Kg2 Rg1 (34...Rg1 35.Kf3 Re1–+) 0–1. Fournier,Frederic (1910) – freilich (1700), Active Blind, 2008.

3.c3 e5 4.d4 (4.e3 Bc5 5.d4 Bd6+=) 4...ed4= 5.Qd4 Qc5 (5...Nc6 6.Qe3 Be7 7.Nd2=) 6.Ba3 Qd4 7.cd4 Nc6 8.Bf8 Kf8 9.e3 b6 (9...d6 10.Nf3=) 10.a3 Bb7 11.Nc3 Nf6 12.Nf3 (12.Rc1 Rc8+=) 12...Ke7 (12...Rc8 13.Rc1=) 13.Bd3 Rhc8 14.Kd2 (14.Rc1 Na5+=) 14...Na5= 15.Rab1 Bf3 16.gf3 Nc4 17.Bc4 Rc4 18.Kd3 Rac8 19.Rhc1 Ke6 20.e4 Nh5 (20...d5 21.Rb4 R4c7 22.h4=) 21.Ne2 (21.Rb4 Nf4 22.Kd2 d5=) 21...Rc1 22.Rc1 Rc1 23.Nc1 Nf4 24.Kc4 (24.Ke3 g5=) 24...a6=+ 25.Na2 d5 26.Kc3 a5 27.a4 Nh3 28.Kd2 Nf2 (28...de4 29.fe4 Nf2 30.Nc3=+) 29.Nc3 de4 30.fe4 (30.Ke3 Nd3=+) 30...g5 (30...f5 31.ef5 Kf5 32.Ke2=+) 31.Ke2 Ng4 32.h3 Nf6 33.Kd3 (33.Kf3 h5=) 33...h5 34.Kc4 (34.Ke3 h4=) 34...h4 (34...g4 35.h4 g3 36.Kd3–/+) 35.Kb5? (better is 35.e5 Ne8 36.Ne4=+) 35...g4–+ 36.hg4 h3 37.Ne2 h2 38.Ng3 Ne4! 39.Nh1 Kd5 40.Kb6 Kd4 41.Ka5 Ke3 42.Kb6 Nf2 (43.Nf2 Kf2–+) 0–1. Sunyer,Julio – Tartakower,Savielly, Sitges, 1934.

3.Nc3 Na6 4.Bb2 (4.e4 Nc5 5.Bc4 Nf6+=) 4...Nc5 5.e3 g6 (5...Nf6!?+=) 6.Nd5+/– f6 7.Bc3 (7.Bc4 b5 8.Bc3 Qd8 9.Bb5 e6+/–) 7...Nd3+= 8.Bd3 Qd5 9.Qf3 Qe6 (9...Qf3 10.Nf3 e5 11.Be4+=) 10.Ne2 (10.Be4 Bg7+/–) 10...d6 (10...Bg7 11.Nd4 Qb6 12.0–0+/–) 11.Bb5+/– Kf7 12.Nd4 Qe5 (12...Qg4 13.Be2 Qf3 14.Bf3+=) 13.Bc4+– Ke8 14.Bd5 (14.Ne6 Be6 15.Be5 Bc4 16.Qb7 Rd8 17.Qc6 Rd7+–) 14...Rb8 15.Nc6! Qf5 (15...bc6 16.Bc6) 16.Qf5 Bf5 17.Nb8 Kd8 (17...e6 18.e4 ed5 19.ef5+–) 18.e4 Bc8 19.Ba5 (19.Rb1 Kc7 20.Nd7 Kd7 21.Bb7 e6+–) 19...Ke8 20.Rb1 (20...b6 21.Bc3+–) 1–0. Pohl,M – Kohn,Thomas, Oberschwaben–chB, 1995.

3.Nc3 Nc6 4.e3 Nf6 5.Nf3 (5.Rb1 e5+=) 5...e6 (5...e5 6.Rb1=) 6.Be2 (6.Rb1 a6+= (6...Bc5? 7.Rb5+–)) 6...Bc5= 7.0–0 0–0 8.Rb1 d5?? (8...d6 9.Rb3=) 9.Bb2?? (better is 9.Rb5 Qc7 10.Rc5+–) 9...e5= 10.d3 (10.Nb5 a6 11.d4 e4+=) 10...d4 (10...Bb4 11.Nd2+=) 11.ed4 ed4 12.Ne4 Ne4 13.de4 The pressure on the isolated pawn grows 13...Bb4 14.Bd4 Nd4 15.Nd4 Be6? 16.Ne6+– fe6 17.Bf3 Rae8 18.Qe2 Rf7 19.Rfc1 Ref8 20.c3 Be7 21.Rd1 Qc7 22.a4 a6 23.Qf1 b5 24.ab5+/– ab5 25.Be2?? Rd8?? 26.Rd8+– Bd8 27.c4 bc4 28.Bc4 Re7 29.Be2 Qb8?? 30.Rb8+– Rc7 31.Qd1 Kf7 32.Rd8 Rc1 33.Qc1 (33.Qc1 Kf6 34.Qf4 Kg6 35.Rd6 h5 36.Qf5 Kh6 37.Qh5; 33.Bh5 g6 34.Qc1 gh5 35.Qf4 Kg7 36.Rf8 e5 37.Qf6) 1–0. Fournier,Frederic (1910) – ReyDeLosPavos (1765), Active Blind, 2008.

3.Nc3 e5 4.Ne4 Bc5= 5.Nc5 Qc5 6.e3 Nf6 7.Nf3 d6 8.Be2 0–0 9.0–0 Be6 10.d4 Qc3 11.Bd2 Qc7 12.a3 e4 13.Ng5 Bf5 14.c4 h6 15.Nh3 Bh3 16.gh3 Nc6 17.Rb1 Rab8 18.f4 d5 19.cd5 Nd5 20.Qb3 Rfd8 21.Bg4 Qd6 22.Bf5 Nd4!–+ 23.ed4 Qf6 24.Ba5 b6 (24...Qf5?! 25.Bd8 Rd8 26.Qb7–/+; < 24...Qd4 25.Kh1 b6 26.Rbd1+=) 0–1. Gretencord,Ulrich – Zedtler,Uwe, DESC, 2001.

3.c4 g6 4.Bb2 e5 (better is 4...Nf6!?+=) 5.Be5+– f6 6.Bc3 Qc5 7.e3 Bg7 8.d4 Qc7 9.Na3 b6 (better is 9...a6+–) 10.Nb5 Qc6 11.Be2 d5 12.cd5 Qd5 (12...Qd7 13.Qa4 Kd8+–) 13.Nc7 (13...Kd8 14.Nd5+–) 1–0. Tihomir Glowatzky (2075) – rookie2 (1815), ChessWorld.net, 2003.

3.c6 Nc6 4.e3 d6 (4...d5 5.Nf3=+) 5.c3 (5.Nc3 Nf6=) 5...g6 (5...e5 6.Nf3=+) 6.d3 (6.Nf3 Nf6=) 6...Bg7=+ 7.Bd2 Qb6 (better 7...Nf6=+) 8.e4?? (better 8.Na3=) 8...Qb2–+ 9.Na3 Qa3 10.d4 Nf6 11.Bc1 (11.Qc2–+) 11...Qc3 12.Bd2 Qd4 13.f3 (13.Nf3 Qe4 14.Be2 Bg4–+) 13...Ne4! 14.fe4 (14.fe4 Qe5 Double attack (14...Qe5 Decoy)) 14...Qa1 15.Qa1 Ba1 16.Bb5 (16.Nf3 Be6 17.Kf2 Bg7–+) 16...Bd7 (16...Be6 17.a4–+) 17.Ne2 (17.Nf3 Rc8–+) 17...0–0 (17...Rc8 18.Kf2 Bg7 19.Rc1–+) 18.Bh6 (18.Bg5 f6 19.Bf4 f5–+) 18...Bg7 19.Bg7 (19.Bg5 Rae8–+) 19...Kg7 20.h4 (20.Kd2 f5 21.Ng3 e5–+) 20...h6 (20...f5 21.ef5 Bf5 22.Rg1–+) 21.Nf4 White intends h5 (21.Kd2 f5–+) 21...Ne5 (21...Rac8 22.Kd2–+) 22.Bd7 Nd7 23.g4 White prepares the advance h5 (23.Kd2 Rac8 24.Rb1 e5–+) 23...Rac8 24.Kd2 Ne5 (24...Rc4 25.Re1–+) 25.h5 (25.Rb1 Rc4 26.Rb7 Re4–+) 25...g5 (25...Rc4!? 26.hg6 Re4 27.Rf1–+) 26.Nd5 e6 (26...Nc4 27.Ke2 e6 28.Ne3–+) 27.Nc3 (27.Ne3 Rc6 28.Ra1 Ra6–+) 27...a6 28.Na4 (28.Rb1 b5–+) 28...b5 29.Nb6 Nc4 (29...Rc6 30.Ke2–+) 30.Kd3 (30.Nc4 Rc4 31.Ke3 d5 32.ed5 ed5–+) 30...Nb6 31.e5 d5 (31...de5 32.Re1–+) 32.a3 Rc4 33.Ra1 Rg4 34.a4 Na4 35.Rc1 Rc4 (better 35...Nb2 36.Kc3 Nc4–+) 36.Rc4 dc4 37.Kc2 (37.Ke3 Rd8 38.Kf3 c3 39.Kg3 c2 40.Kg4 c1Q 41.Kf3 Qf1 42.Ke3 Rd3 43.Ke4 Nc3) 37...b4 (37...Rd8 38.Kb1 b4 39.Ka2 Rd2 40.Kb1 b3 41.Kc1 c3 42.Kb1 Rd1) 38.Kb1 (38.Kd2 Rd8 39.Ke2 c3 40.Ke3 c2 41.Kf3 c1Q 42.Kf2 Qc2 43.Ke3 Rd3 44.Ke4 Nc3) 38...b3 39.Ka1 (39.Kc1 Rd8 40.Kb1 Rd1) 39...Rd8 40.Kb1 Rd1 0–1. karlsdad – jaddwarrior (1700), ChessWorld.net, 2013.

3.e3 e6 4.Bb2 f6 5.Bc3 Qc5 6.d4 Qc7 7.Qh5 g6 8.Qh4 Bd6 9.Bd3 f5 10.d5 Be5 11.Nf3?? (better is 11.Qc4 Qc4 12.Bc4+=) 11...Bc3–+ 12.Nc3 Qc3 13.Ke2 e5 14.d6 (14.Qc4 Qc4 15.Bc4 d6–+) 14...e4 15.Rab1 (15.Be4 fe4 16.Qe4 Kf7 17.Qd5 Kg7 18.Qd4 Qd4 19.Nd4 b6–+) 15...ed3 (15...ef3!? 16.Kf3 Qc6 17.e4 Qd6 18.ef5 gf5 19.Bf5–+) 16.cd3 b6 (better is 16...Nc6 17.Rhc1 Qg7–+) 17.Rhc1+– Qa5 (17...Qc1 18.Rc1 Nc6 19.Rc6 dc6 20.Qd4+–) 18.Rc8 Kf7 19.Qc4 (better is 19.Ng5 Kg7 20.Qd4 Kh6 21.Nf7 Kh5 22.Qh8 Qa2 23.Rb2 Qf7 24.Rg8 Kh6+–) 19...Kg7 20.Qd4 (better is 20.Ng5 Nc6 21.Ra8+–) 20...Nf6 21.Rc7?? (better is 21.Rh8 Nc6 22.Rh7 (22.Ra8 Nd4 23.ed4 Qa2 24.Nd2 Nd5–/+) 22...Kh7 23.Qf6 Qa2 24.Rb2+–) 21...Rf8 (21...Qa2 22.Rb2 Qd5 23.Rbc2–+) 22.Ne5? (22.a4 Qd5–+) 22...Kh6?? (22...Qa2 23.Rb2 Qe6 24.Rbc2–+) 23.e4? (better is 23.Rb2–/+) 23...Na6 (23...Qa2 24.Rb2 Qe6 25.ef5 Qf5 26.Kd1–+) 24.Rb7?! (24.Nd7 Nc7 (24...Qa2 25.Rb2 Qf7 26.Qe3 g5 27.Qh3 Nh5 28.Nf8 Nc7 29.dc7 Rf8 30.Qf5 Nf4 31.Kd2 Qf5 32.ef5–+) 25.Nf8 Ncd5–+ (25...Qa2?! 26.Rb2 Qf7 27.dc7 Rf8 28.Qd8–/+)) 24...Rac8 (24...fe4 25.Ra1 Nc5 26.Rc7–+) 25.Qe3?? (25.Ra7 Qa2 26.Rb2 Rc2 27.Rc2 Qc2 28.Ke1–+) 25...Kg7 26.ef5 (26.Nd7 Qa2 27.Qd2–+) 26...Rfe8 (26...Qa2 27.Kf3 Qd5 28.Ke2 Qb7 29.Kf1–+) 27.d4 (27.Qd4 Re5 28.Kf1–+) 27...Qa2 28.Kf3 Qb1 29.Ra7 (29.Kg3 Rc3! 30.Rd7 Kg8 31.Qc3 Ne4 32.Kh4 Nc3–+) 29...Qf5 30.Ke2 Rc2 31.Kd1 Ra2 32.d5 Qc2 33.Ke1 Ra1 (34.Qc1 Rc1#) 0–1. Seanypop – rookie2, ChessWorld.net, 2004.

3.Nf3 e6 4.Bb2 f6 5.e4 Bc5 6.Bc3 Qb6 7.d4 Bb4 8.Qd2 Bc3 9.Nc3 Ne7 10.Rb1 Qa5 11.Nb5 Qb6 12.Qb4 Kf7 13.Nd6 Kg8 14.Qb6 ab6 15.Bc4 Nbc6 16.Rb6 Ra2?? (16...g5 17.Nc8 Nc8 18.Rb7 Nd6 19.Be6 de6+=) 17.Ba2 (17...Kf8 18.e5+–) 1–0. Klaus Behrmann (2265) – rookie2 (1805), ChessWorld.net, 2003.

3.Nf3 Nf6 4.Nc3 =.

3.Ba3 e5

4.e3 =.

4.e4 Bc5 5.Bc5 Qc5 6.Nf3 Nf6 (7.Nc3 0–0=) =. RX7 MASTER – rookie2, ChessWorld.net, 2004.

4.Nf3 Bc5 5.Bc5 Qc5 6.e3 d6 7.Be2 Nc6 8.0–0 e4 9.d4 Qa5 10.Nfd2 Nf6 11.Nb3 Qg5 12.f4 Qg6 13.Qe1 h5 14.Qh4 Nb4 15.Bb5 Kf8 (15...Bd7 16.Bd7 Kd7 17.Na3+=) 16.Na3 a6 17.Be2 Bh3?? (better is 17...Nbd5 18.Nc4 b5 19.Nd6 Ke7 20.Nc8 Rhc8=) 18.Qh3+– Nbd5 19.Nc4 Ke7 20.f5 (better is 20.Nba5!? Nc3 21.Rf2 Rac8+–) 20...Qg5 Black intends h4 21.Qg3?? (better is 21.Rf2+–) 21...Qh6?? (better is 21...Qg3 22.hg3 b5+=) 22.Qd6+– Ke8 23.Qg3 (better is 23.Nc5 Nc3 24.Rfe1 Rd8 25.Qe5 Kf8+–) 23...h4 24.Qh3 (24.Qd6 Rd8 25.Qc5 Nc3+–) 24...Rg8? (24...b5 25.Ne5 Qe3 26.Qe3 Ne3+–) 25.Rae1 Rc8 (25...b5 26.Ncd2+–) 26.Nd6 (26.Nc5 Ke7 27.Nb7 Qg5+–) 26...Kd7 (26...Ke7 27.Nc8 Rc8 28.Rf2+–) 27.Nc8 Kc8 (27...Rc8 28.Nc5 Rc5 29.dc5 Qe3 30.Qe3 Ne3 31.Bb5 ab5 32.Re3+–) 28.Bd1 (better is 28.Bc4!? Rd8+–) 28...g5 (28...Nc3+–) 29.fg6 (29.fg6 Kd8 30.gf7+–) 1–0. mikebaldini (1665) – tsm76 (1620), gameknot.com, 2014.

3.a4 Qc5

4.Ba3 Qb6 5.Nc3 g6 6.g3 (6.Nd5!? Qd8 7.Bb2+=) 6...Bg7= 7.Bg2 Nc6 8.Nf3 e6 (better 8...Bc3!? 9.dc3 Nf6=) 9.0–0 (better 9.Rb1!? Qa5 10.Nb5+–) 9...Nge7 10.Rb1 Qc7? (better 10...Qa5!?+=) 11.Nb5+– Qd8 (11...Qa5 12.Nd6 Kf8 13.c3+– (13.Nb7?! Qa4 14.Bc5 Bb7 15.Rb7 d5+–; 13.Nc8?! Rc8 14.c4 Qc7+–)) 12.Nd6 Kf8 13.c3 (13.Ng5 Qa5 14.Ngf7 Qa4 15.Nh8 Qa3+–) 13...Bf6 14.Qc2 Kg7 15.h4 (15.e4 e5+–) 15...Rf8 (15...b6 16.Qd3+–) 16.Ng5 h6 17.Nge4 Be5 18.f4 Bd6 19.Bd6 (19.Nd6 b6+–) 19...Re8 (19...f5 20.Nf2+–) 20.c4 Nf5 21.Qc3 f6 22.g4 Nh4 (22...Nd6 23.Nd6 Rf8 24.Nb7 Bb7 25.Rb7+–) 23.g5 Ng2? (23...Kf7 24.Nf6 (24.gh6?! Nf5+–) 24...Rh8 25.Ng4+–) 24.Kg2 (better 24.Bc7 Nd4 25.gh6 Kh8 26.Bd8 Ne2 27.Kg2 Nc3 28.Bf6 (28.dc3?! Rd8 29.Nf6 Rf8+=; 28.Nc3?! Rd8 29.Ne4 Kh7+=) 28...Kg8 29.Ng5 Re7 30.Be7 Ne4 31.h7 Kg7 32.Rh1 Kh8 33.Nf7 Kg7 34.h8Q Kf7 35.Rh7) 24...Kf7?? (24...Rh8 25.gf6 (25.Qf6?! Qf6 26.gf6 Kf7+–) 25...Kg8 26.Rh1+–) 25.Nf6 (better 25.Bc7 Qe7 26.gf6+–) 25...hg5 (25...Rh8 26.Ng4 h5 27.Nh6 Rh6 28.gh6 Qg8+–) 26.fg5 b6 (26...Qe7 27.Ne8 Kg8 28.Be7 e5 29.Rf8 Kh7 30.Rh1) 27.Ne8 Ke8 (27...Qf6 28.Qf6 Ke8 29.Qf8) 28.Qh8 (28.Rf8) 1–0. banistyle (1985) – FernandoDuarte (1915), lichess.org, 2020.

4.e3 a6 5.c4 d5 6.Ba3 Qc6 7.cd5 Qd5 8.Nc3 Qa5 9.Nf3 Nc6 10.Qb3 h6 (10...Nf6!?+=) 11.Bc4+– e6 12.Bf8 Kf8 13.0–0 Nge7 14.Qa3 (14.Rfc1 Kg8+–) 14...Kg8 15.d4 Qb4 16.Qb4 Nb4 17.Rfb1 Nbd5 (17...a5 18.Nb5+–) 18.Ne4 Kh7 (18...b6 19.Nd6 f5 20.Ne5+–) 19.Bd3 (19.Nd6 f5+–) 19...f5+– 20.Nd6 Rd8 (20...b6!?+–) 21.Nb7+– Bb7 22.Rb7 a5 23.Ne5 Nb4?? (better 23...Rdb8 24.Rab1 Rb7 25.Rb7 Rc8+–) 24.Re7 Nd3 25.Nd3 1–0. GuestMLPV – GuestLFBG, freechess.org, 2017.

3.Bb2 Qc5

4.Nc3 Qb6 5.Rb1+= Nf6 6.e3 Nc6 7.Nf3 a6 8.d4 (8.e4 e6+=) 8...d5 9.Bd3 e6 10.0–0 Qd8 (10...Qa5 11.e4=) 11.Ne2 (11.e4 Be7+=) 11...b5 12.c3 Qc7 13.a4 Bd6 (13...ba4 14.Ra1=) 14.ab5+= ab5 15.Bb5 Rb8 (15...0–0 16.c4+=) 16.Qa4+/– 0–0?? (better is 16...Bb7+/–) 17.Bc6+– Ne4 (17...Rb6 18.Bb5 Bd7 19.Bd7 Qd7 20.Qd7 Nd7 21.Nd2+–) 18.Rfd1 (better is 18.Bb5+–) 18...Rb6 19.Bb5 Bb7? (better is 19...Qb7 20.c4 dc4+–) 20.Ba3 (20.Bd3 Ba6 21.Qc2 Bd3 22.Qd3 Ra8+–) 20...Ba3?? (better is 20...Ra8 21.Bc5 Ra4 22.Bb6 Qb6 23.Ba4 Qc7+=) 21.Qa3+– Ra8 22.Qc1 h6 23.Bd3 Rb1 24.Qb1 Ba6 25.Ba6 Ra6 26.Rc1 Rb6 27.Qc2 Qc4 28.Ne1 Ra6 29.Qd3 Qa4 30.f3 Nd6 31.Rb1 Ra8 32.Qc2 Qa6 33.Kf2 Nc4 34.Qc1 Na3 35.Ra1 Qd6 36.Nc2 Rc8 37.Na3 Qh2 38.Nb5 Qh4 39.Kg1 Qg5 40.Nf4 Qf5 41.Nd6 (41.Nd6 Qg5 42.Nc8+–) 1–0. Fournier,Frederic – EAGLEYE, Partie evaluee, 5m + 2s, 2009.

4.Nc3 d5 5.d4 Qb4 6.Rb1 Qa5 7.e3 e6 8.Bb5 (8.Nf3 Bb4 9.Qd2 Nc6=) 8...Bd7 9.Bd7 (9.Bd3 Bb4 10.Qd2 Nf6=) 9...Nd7=+ 10.Nge2 Ngf6 11.0–0 Bd6 12.Qd3 0–0 (12...Qc7 13.Ng3–/+) 13.e4 de4 (13...Rfc8 14.e5 Ne5 15.de5 Be5 16.Rfe1+/–) 14.Ne4 Ne4 15.Qe4 Rac8 (15...Qc7 16.f4=+) 16.Qb7= Nf6 (16...Nb6 17.Rfc1=) 17.Qb3=+ Bh2 18.Kh2 Qh5 19.Kg1 Qe2 20.c3 Rfd8 (20...Nd5 21.Rfe1 Qd3 22.Red1=+) 21.Rfc1 (21.Rfe1 Qd3=+) 21...Qd3 (21...Rb8 22.Qc2 Qc4 23.Ba3=+) 22.Rd1 (22.c4 Qf5=) ½–½. Pohl,W – Bendig,Frank, corr, 1995.

4.Nc3 d5 5.e3 e5 =.

4.e3 Qb6 5.c4?? Qb2–+ 6.Nc3 Qa3 7.Rb1 Nf6 8.Nf3 e6 9.Rb3 Qa5 10.Be2 Be7 11.0–0 0–0 12.Qc2 Nc6 13.Rfb1 b6 (13...d5!? 14.d4–+) 14.Rb5 Qa6 15.c5 Qb7 (15...bc5!? 16.a4–+) 16.cb6 ab6 Black creates threats along the open c–file 17.Na4 Nd5 (17...Qa7 18.Nb6 Rb8 19.Nc8 Rbc8 20.Qb3–+) 18.Nb6 Nb6 19.Rb6 Qc7 (19...Qa7 20.R1b2–+) 20.Nd4 Qe5 (20...Qa7 21.Nc6 dc6 22.Bd3–+) 21.Nc6 dc6 22.Rc6 Bd7 23.Rc3 Rfc8 Black launches an attack 24.Rc8 Rc8 25.Qb3 Bd6 Threatening mate: Qxh2 26.f4 Qf6 27.Bf3 (27.d4 g5 28.fg5 Qg5–+) 27...h6 (27...e5 28.fe5 Qe5 29.g3–+) 28.Qd3 (28.Qb7 Qe7–+) 28...e5 29.Rb6?? (better 29.Bb7 Bf5 30.e4–+) 29...Rc1 30.Kf2 (30.Qf1 Rf1 31.Kf1 ef4 32.Ke2–+) 30...Qh4 31.g3 Qh2 32.Bg2 ef4 (better 32...Bg4 33.Qf1 Bh3–+) 33.ef4 (33.Qd5 fe3 34.Ke3 Qg3 35.Bf3 Qg1 36.Ke2 Re1 37.Kd3 Qb6 38.Bd1–+) 33...Qg3 (33...Bc5 34.Qe3 Bg4 35.Rb8 Kh7 36.Rh8 Kh8 37.Qc5 Qg1) 34.Qg3 (better 34.Kg3 Be6 35.Qd6+–) 34...Bc5+– 35.Kf3 (better 35.Ke2!? Bb6 36.Qb3 Bg4 37.Bf3 Bf3 38.Kf3+–) 35...Bb6= 36.Ke2 (36.f5!? Bc7 37.Qg4=) 36...Bb5=+ 37.Kf3? (better 37.d3 Rc2 38.Ke1 Ra2 39.Qh3 Bf2 40.Kf1=) 37...Bc6–+ 38.Kg4 (better 38.Ke2 Rg1 39.Qh3 Rg2 40.Kd3–+) 38...Bd7?? (38...Bg2 39.Qa3 Rg1–+) 39.Kh4?? (better 39.f5 Rc4 40.Kf3=) 39...Rc4 (39...Bd8 40.Kh5 Rc5 41.f5 Rf5 42.Kg4 Rf6 43.Kh4 Rf3 44.Kh5 Rg3 45.d4 Bg4) 40.Kh5?? (40.Qf3 Rf4! 41.Qf4 g5 42.Qg5 hg5 43.Kg5–+) 40...Rf4 (better 40...Kh7 41.Bd5 g6 42.Kh4 Bd8 43.Qg5 Bg5 44.Kg3 Rf4–+) 41.Qg7 (41.Qg7 Kg7 42.d4 Bd8 43.a4 Bg4; better 41.Qf4 Bc5 42.Qc7 g6 43.Kh6 Bf8 44.Kg5+–) 1–0. RichardSommer (2060) – nikolaylichess (2320), lichess.org, 2020.

4.e3 Nc6 5.c4 Nf6 6.Nf3 d6 (6...e5 7.Nc3 e4 8.Nb5+=) 7.Be2 g6 (7...e5 8.d4 Qa5 9.Bc3+=) 8.0–0 (8.Bf6 ef6 9.0–0 Qf5+–) 8...Bg7+= 9.Nc3 0–0 10.h3 Bf5 11.Na4 Qb4 12.Qb3 Qb3 13.ab3 Nb4 14.Nd4 Bd7 15.Bf3 Rab8 16.Nc3 a6 17.Nd5 (17.Ba3 Nc6=) 17...Nfd5=+ 18.Bd5 Nd3 (18...Rfc8 19.Be4=+) 19.Bc3= b5 (better 19...Rfc8=) 20.Ra6+– b4 21.Ba1 Bc8 (21...Nc5 22.Ra7+–) 22.Ra4 (22.Ra7!? e6 23.Bf3+–) 22...Bb7+– 23.Nc6 (23.Bb7!? Rb7 24.Nc2+–) 23...Bc6= 24.Bc6 Rfc8 (24...Nc5 25.Bg7 Kg7 26.Ra2 Nb3 27.Rb1+=) 25.Bg7 Rc6 26.Bd4 Rcc8 27.Rfa1 e5 28.Ba7 Ra8 29.e4 Nb2? (better 29...f5 30.f3 Kg7+–) 30.Be3?? (better 30.Rb4 Nd3 31.Rb6+–) 30...Na4–+ 31.Ra4 (31.ba4 Rc4 32.a5–+) 31...Ra4 32.ba4 (32.f4 Ra3 33.fe5 de5–+) 32...b3 33.d4 (33.f3 b2 34.Kh2 b1Q–+) 33...b2 34.de5 b1Q 35.Kh2 Qe4 36.ed6 Qe5 37.g3 Qd6 (37...Rc4 38.a5–+) 38.Bf4 (38.c5 Qc6 39.Bg5 Qf3 40.Kg1 Rb8 41.Bc1 Rb1 42.h4 Rc1 43.Kh2 Rh1) 38...Qd3 39.Kg2 Rc4 40.a5 (40.Be3 Qe4 41.Kf1 Ra4 42.Ke2 Ra2 43.Kd1 Qh1) 40...Rf4 (40...Qe4 41.Kh2 Rc2 42.Bd2 Rd2 43.g4 Qf4 44.Kh1 Qf2 45.g5 Qe1) 41.a6 Qe4 (41...Qf3 42.Kh2 Qf2 43.Kh1 Qe1 44.Kg2 Rf2) 42.Kg1 (42.Kf1 Qh1 43.Ke2 Rd4 44.f4 Qe4 45.Kf1 Qc2 46.a7 Rd1) 42...Rf3 (42...Qe1 43.Kg2 Rf2) 43.Kg2 (43.h4 Qe1 44.Kg2 Qf2 45.Kh1 Qf1 46.Kh2 Rf2) 43...Qe2 44.h4 (44.Kh2 Rf2 45.Kg1 Qe1) 44...Qf2 (44...Rf2 45.Kh3 Rh2) 45.Kh3 (45.Kh1 Qf1 46.Kh2 Rf2) 45…Qg3 (45...Rg3?!=) 0–1. RichardSommer (2140) – fokilokium (2175), lichess.org, 2020.

4.e3 Nc6 5.Nf3 =.

4.e3 d5 5.Qc1 (5.Nf3 Nc6=) 5...b6 (5...Nc6 6.Nf3=) 6.Nf3 Bb7 (6...Nc6 7.c4=) 7.Be2 (7.Bd4 Qc8+=) 7...Nf6 8.0–0 e6 9.d4 (9.Bd4 Qc7+=) 9...Qc7 10.c4 (10.Ba3 Ba6 11.Ba6 Na6 12.Bf8 Rf8+=) 10...dc4 11.Bc4 Bd6 12.Nc3?? (12.Be2=) 12...Nc6?? (better is 12...Qc4 13.Ne4 Qd5 14.Nd6 Qd6–+) 13.Be2 0–0–0? 14.Qd2 Be7 15.Rab1 Rhe8 16.Rfc1 Bd6 17.Qe1 g6? 18.Qf1 Nd7 19.Bd3 e5? 20.de5 Be5 21.Ne5 Nde5 22.Be2 Nd4?? 23.ed4+– Rd4 24.Rd1 Rd1 25.Rd1 Rd8 26.Rd8 Qd8 27.Qd1 Qd1 28.Nd1 f5 29.Be5 Kd7 30.Bf3 Bf3 31.gf3 Ke6 32.Bb2 a5 33.Ne3 b5 34.f4 b4 35.Ng2 a4 36.Ba1 b3 37.ab3 ab3 38.Ne3 b2 39.Bb2 1–0. Fournier,Frederic – Imprescindible, Active Blind, 2008.

4.e3 e5 5.Ba3 Qa5 6.Bf8 Kf8 7.Nc3 d5 8.Rb1 a6 9.f4 (9.Qh5 Nc6=) 9...e4 (9...ef4 10.ef4 Nf6 11.Nf3=) 10.Nge2 Ne7 11.Nc1 b5 12.Nb3 Qa3 13.Qh5 Be6 14.Nd4 b4 15.Ne6 (15.Nce2 Nbc6 16.Ne6 fe6=) 15...fe6= 16.Rb3 Qc1 17.Qd1 Qd1 18.Nd1 Nbc6 19.Be2 (19.c4 Kf7=) 19...Kf7 20.0–0 (20.d3 ed3 21.Bd3 Rhc8=) 20...Rhb8 21.d3 Na5 22.Rb2 ed3 23.cd3 Ra7 24.Nf2 Rc7 25.Ng4 Kg8 26.Ne5 Nac6 27.Bg4 Ne5 28.fe5 Rc6 29.g3 a5 30.Rbf2 (30.h3 Rbc8=) 30...Rbc8 (30...Ng6 31.d4=+) 31.Bh3 ½–½. Grott – Bendig,Frank, corr SP17, 1992.

4.e3 Nf6 5.d4 Qb6 6.c4?? (better is 6.Qc1=) 6...Qb2–+ 7.Nc3 (7.Nd2–+) 7...Qc3 8.Qd2 (8.Ke2 Qc4 9.Qd3–+) 8…Qa1 (9.Qd1 Qa2–+) 0–1. Pierred – Chin mun kin, Rated game, 3m + 0s, 2005.

4.Nf3 Nc6 +=.

3.Nc3 Qc5

4.Rb1 b6 5.e4 d6 (5...Nf6 6.Rb3+=) 6.Bb5 (6.Nd5 Bd7+=) 6...Bd7+= 7.Nge2 (7.Nf3 Nf6+=) 7...a6 (7...e6!?+=) 8.d4+– Qc7 9.Bd3 (better 9.Nd5 Qd8 10.Bd3+–) 9...g6? (better 9...e6+=) 10.Nd5+– Qd8 11.Nb6 (11.Rb6?! e6 12.Bg5 f6 13.Nf6 Nf6=) 11...Ra7 12.Nd7 Nd7 13.0–0 Bg7 14.f4 Ngf6 15.e5 Nd5 16.c4 (16.c3 0–0+–) 16...N5b6 17.Qb3 (17.Be3 0–0+–) 17...Rc7 (17...Qc7 18.ed6 ed6 19.f5+–) 18.f5 de5 (18...gf5 19.ed6 ed6+–) 19.c5 Nc8 (19...e4 20.cb6 Rc1 21.Rbc1 ed3 22.fg6+–) 20.fg6 0–0 21.gf7 Kh8 22.Bh7! Nf6 (22...Kh7 23.Qh3) 23.Bc2 (23.Bc2 Rf7 24.Qf7+–) 1–0. Board_Pirate (2705) – jaddwarrior (1715), ChessWorld.net, 2013.

4.Rb1 Nf6 5.e4+=.

4.e4 Nf6 5.Rb1 +=.

4.e4 g6 5.Nge2 Bg7 6.d4 Qb4 (6...Qc6 7.Bb2+=) 7.Bd2 Qb6 8.Rb1 Qc6 (better is 8...Qd8!?+=) 9.d5+– Qc4?? (better is 9...Qc5+–) 10.Nb5 Na6 (10...a6 11.Bc3 Nf6+–) 11.Nec3 Qc5 (11...Qf1 12.Kf1 d6 13.Be3+–) 12.Na4 (12...Kf8 13.Nc5 Nc5 14.d6 Ne4 15.de7 Ne7 16.Bb4+–) 1–0. orane (1940) – tzuicu (1710), Live Game Caissa's Web, 2003.

4.Nf3 h6 5.e3 d6 6.Ne4 Qb6 7.Ba3 Bg4 8.Be2 Qa5 9.Bb2 Qb4 10.Bd4 e5 11.c3 (better is 11.Rb1 Qa5 12.Ba1+=) 11...Qa5–/+ 12.h3 (12.Qb1!? Qc7 13.Ne5 Be2 14.Nf7 Qf7 15.Ke2–/+) 12...Bf3 13.Bf3 ed4 14.ed4 d5 15.Nc5 Bc5 16.dc5 (16.Bd5 Nd7 17.dc5 Nc5–+) 16...Qc5 17.0–0 Ne7 18.Re1 Nbc6 19.Qb3 b5 (19...0–0–0 20.Rab1 Rd7 21.Re2–+) 20.Be2? (better is 20.d4 Qb6 21.Qd5–/+) 20...a6 21.Bf3 Rd8 22.Qc2 (22.a4 b4–+) 22...b4 23.Re3 d4 24.Re4 bc3 25.dc3 Qc3 26.Qc3 dc3 27.Rc1 Rd4 28.Re3 Rc4 29.Rec3 Rc3 30.Rc3 Kd7 31.Rd3 Kc7 32.Bg4 f5 33.Be2 Rd8 34.Rb3? a5 35.a4 g5 36.Ba6 Rb8 37.Re3 f4 38.Re6 h5 39.Rh6 h4 40.Rh5 Rg8 41.Be2 Nd4 42.Bd1 Kd6 43.Rh6 Rg6 44.Rh8 Re6 45.Kh2 Re1 46.Bg4 Ra1 47.Rh6 Ke5 48.Rh7 Nd5 49.Ra7 Ra4 50.Bd7 Ra2 51.f3 Ne3 52.Bg4–+ Rg2 53.Kh1 Ra2 54.Kg1 Ng4 55.fg4–+ a4 56.Ra5 Ke4 57.Rg5 Nf3 58.Kf1 Ng5 (58...Ng5 59.Ke1 f3 60.Kd1 f2 61.Kc1 f1Q) 0–1. jamtaylo66 (1680) – revs, ChessWorld.net, 2013.

3.c4 Qc5

4.e3 Qa5 5.Bb2 e5 6.Nf3 Nc6 7.Nc3 Nf6 8.Qc2 d6 9.Be2 Be7 10.0–0 0–0 11.Rac1 Bd7 12.d4 ed4 13.ed4 Bf5 14.Qd1 a6 15.d5 Ne5 16.Nd4 Bd7 17.f4 Neg4 18.Qd2 Rab8 19.h3 Nh6 20.f5 Ne8 21.g4 Qd8 22.Ne4 Nf6 23.Ng3 Ne8 24.f6 Bf6 25.Rf6 Ng4 26.hg4 Nf6 27.Ndf5 Ne8 28.Qh6! f6 29.Qh4 Bf5 30.Nf5 Kh8 31.Kg2 g6 32.Qh6 Rg8 33.Qh7!! 1–0. Kuehn – Hoehne, corr DDR/4.cup/PZ 4, 1975.

4.e3 d6 5.Nf3 e6 6.Bb2 Nf6 7.d4 Qc7 8.Nc3 Be7 9.Bd3 b6 10.Rc1 Bb7 11.Qe2 Nbd7 (11...Nc6 12.Nb5 Qd7 13.a3=) 12.0–0+= 0–0 13.Ba3 (13.e4 Rfc8+=) 13...a6 14.Nd2 g6 (14...Rac8 15.e4=) 15.f4 h5 (15...h6 16.Bb2+=) 16.e4+/– Rfe8 17.d5 (17.e5 de5 18.Be7 e4 19.Nce4 Re7+=) 17...e5 18.f5 Kg7 19.Kh1 (19.fg6 fg6 20.Rf3 Rf8+=) 19...Nc5+= 20.Bb1 (20.Rb1 Rf8+=) 20...Rh8 21.Nf3 (21.Nb3 Rhb8+=) 21...Ng4 (21...Rhf8 22.Bc2=) 22.fg6 fg6 23.Rce1 Raf8 24.Bc1 Qd8 (24...h4 25.h3 Nf6 26.Kg1=) 25.Nd1 (25.Kg1 Qc7+=) 25...Bc8 26.Nf2 Nf2 27.Rf2 Bg4 28.Qe3 Rf4 29.Qc3 Rff8 (29...Rf6 30.Ref1 Rhf8 31.Qe3=) 30.Ref1+= Bd7 (30...h4 31.Be3+=) 31.Bc2 g5 32.Qe3 Rf4 (32...g4 33.Nh4 Rf2 34.Qf2+=) 33.Bb2 Bf6? (better is 33...Kh7+/–) 34.g3+– Rg4 35.Ne5! Be5 (35...de5 36.Rf6) 36.Be5 de5 37.h3 Rf4 38.gf4 ef4 (38...gf4 39.Qc3 Qf6 40.Rg1 Kf8 41.Rfg2+–) 39.Qd4 Kh6 (39...Kf7 40.h4 Rg8 41.hg5 Qg5 42.e5+–) 40.Rf3 Rf8 41.e5 (41...Bf5 42.Bf5 Rf5 43.Re1+–) 1–0. Petersen,Jan – Rasmussen,Erik, corr DEN, 1992.

4.e3 e5 5.d4 Qb4 6.Bd2 Qb2 7.Nc3 ed4 8.ed4 Bb4 9.Rb1 Qa3 10.Qb3 Nc6 11.d5 Nd4 12.Qa3 Ba3 13.Bd3 Nf6 14.Nge2 Bc5 15.0–0 0–0 16.Nd4 Bd4 17.Nb5 Bb6 18.d6 Ng4 19.Bc3 Nf2?! 20.Rf2 Bf2 21.Kf2 b6 22.Be4 Rb8 23.Na7 Bb7 24.Bb7 Rb7 25.Nb5 Ra8 26.a3 Ra4 27.Rb4 Rb4 28.ab4 Rb8 29.Bd4 Ra8 30.Bb6 Ra2 31.Kg3 Rb2 32.Ba5 f5 33.Nc7 g5 34.Nd5 h5 35.Nf6 Kg7 36.Nd7 h4 37.Kh3! Rb3 38.g3 hg3 39.hg3 f4 40.Ne5 Rg3 41.Kh2 Kf6 42.d7! g4 43.d8Q Ke5 44.Bc7 Ke4 45.Qd5 Ke3 46.Bf4!! Kf4 47.Qd6 Kf3 48.Qg3 1–0. mtr – blowme, internet, 2001.

4.e3 e6 5.d4+= Qc7 6.Bd2 (6.Nf3 d5+=) 6...Nf6 7.Nc3 a6 (7...Be7 8.Nf3+=) 8.Nf3 d6 9.Bd3 Be7 10.Rb1 0–0 11.0–0 Nbd7 12.Qc2 (12.e4 b6+=) 12...h6 (12...b6 13.e4+=) 13.Rb2 Rd8 (13...b6 14.e4+=) 14.Rfb1 Rb8 15.e4 Nh5 (15...b6 16.Be3+=) 16.Be3 Nhf6 17.h3 Nh5 18.g4 (18.Na4 Nhf6+/–) 18...Nhf6 19.g5 (19.Na4 Re8+=) 19...hg5 20.Ng5 e5 (20...b6 21.Na4+=) 21.f4 (21.Nf3 b6+/–) 21...ed4 22.Bd4 Nc5 (22...Re8 23.Nd5 Nd5 24.cd5+=) 23.e5 Nh5?? (23...de5 24.Be5 Bd6 25.Bf6 Nd3 26.Bd8 Bc5 27.Kh1 Qc6 28.Kh2 Bf5+–) 24.Nd5+– Qd7 (24...Nd3 25.Qd3 Bg5 26.Nc7 (26.fg5?! Qd7+–) 26...Nf4 27.Qe4+–) 25.Bf5!! Qe8 (25...Qf5 26.Ne7) 26.Bd7!! (26...Bg5 27.Be8 Nf4 28.ed6+–) 1–0. Vogel – Bendig,Frank, corr, 1994.

4.e3 Nf6 5.d4+= Qc7 6.Nf3 e6 (6...Nc6 7.Nbd2+=) 7.Nc3 Bb4 8.Bd2 b6? (better is 8...Bc3 9.Bc3 b6+=) 9.Nb5+– Bd2 10.Qd2 (10.Nd2?! Qc6+/–; 10.Kd2?! Ne4 11.Ke1 Qd8+/–) 10...Qd8 11.Nd6 Ke7? (11...Kf8 12.Ne5 Qc7 13.Ndf7 d6 14.Nh8 de5 15.de5 Ne8+–) 12.Qb4 Nd5 (12...Qf8 13.Nc8 Kd8 14.Qf8 Rf8 15.Nd6+–) 13.cd5 (13...Kf6 14.Ne4 Kf5 15.Ng3 Kf6 16.Nh5 Kg6 17.Ne5 Kh5 18.Be2 Kg5 19.Nf7 Kf6 20.Nd8 Rd8 21.Qd6+–) 1–0. Keller – Bendig,Frank, corr Gambitturnier S, 1993.

4.e3 Nf6 5.Nf3 g6 6.Bb2 Bg7 7.Nc3 d6 8.d4 Qa5 9.Bd3. Arnatovich – Serdiukov, SU, 1961.

3.c4 e5

4.Bb2 Bc5 5.Bc3 Qb6 (5...Bb4 6.Bb4 Qb4 7.e3=) 6.e3 Nc6 7.Nf3 d6 8.d4 ed4 9.ed4 Bb4 10.d5 Bc3 11.Nc3 Nce7 12.Rb1 Qc7 13.Nb5 Qa5 (13...Qc5 14.Qd4 Qd4 15.Nfd4+/–) 14.Qd2 Qd2 (14...Qd8 15.c5! Nf5 16.cd6 Nd6 17.Qb4 Qe7 18.Kd1 Nb5 19.Bb5 (19.Qb5?! Kf8+=) 19...Kf8 20.Re1+–) 15.Kd2+– Nf6?? (better is 15...Kd7 16.c5! Nd5 17.Nd6 Nh6+–) 16.Nc7 Kd7 17.Na8 b6 18.Bd3 h6 (18...Ba6 19.Nb6! ab6 20.Rb6+–) 19.Rhe1 Rd8 (19...Re8 20.c5! bc5 21.Bb5 Kd8 22.Be8 Ne8 23.Rb8 Nd5 24.Re8 Ke8 25.Rc8 Kd7 26.Rg8+–) 20.Nd4 Bb7 21.Nb6! ab6 22.Rb6 Bc8 23.a4 Ne8 24.Nc6 Nc6 25.Bf5 Kc7 26.Rc6 Kb7 27.Bc8 Rc8 28.Rb1 (28.Rb1 Ka7 29.Rc8+–) 1–0. pierred (2765) – debutler (2180), net–chess.com, 2010.

4.Nf3 Bc5 5.Nc3 =.

4.Nf3 Bc5 5.Ne5? Bd4 6.Nf7 Kf7 –+.

3.e3 Qc5

4.d4 Qb6 5.Bd2 e6 6.Nf3 Nf6 7.Bd3 Bb4 (7...Nc6 8.0–0+=) 8.c3 Bd6 (8...Be7 9.c4+=) 9.0–0 (9.c4 Be7+=) 9...Nc6 (9...Qb2 10.Qb3 Qb3 11.ab3+/–) 10.c4+= Be7 11.Nc3 Qc7 12.Rb1 b6 (12...d5 13.cd5 ed5 14.Qb3+=) 13.Qc2 a5 (13...0–0 14.e4 d6 15.Rfe1+/–) 14.Ne4 (14.Nb5!? Qd8 15.e4+/–) 14...Ne4+= 15.Be4 0–0? (better is 15...f5!? 16.Bc6 dc6+=) 16.Bh7+– Kh8 17.Bd3 f5 18.Ne5! Ne5 19.de5 Bc5 20.f4 Bb7 21.Be2 Kg8 22.Bf3+/– Bf3 23.Rf3 Kf7 24.Rh3 Ke7 25.Rf3 Kd8 26.Rf2 Rh8 27.Rc1 Ke7 28.Qd1 Rh6 29.Qf3 Rah8 30.g4 Rh2?? 31.Rh2+– Rh2 32.Kh2 Qc6 33.Qc6 dc6 34.Kg3 fg4 35.Kg4 Be3 36.Be3 c5 37.Bc5! bc5 38.Rd1 (38.Rd1 Ke8 39.Rd6+–) 1–0. Fournier,Frederic – Karmandov, Active Blind, 2008.

4.d4 Qb6 5.Nf3 e6 6.Bd3 d5 7.0–0 Nf6 8.c4 Be7 (8...dc4 9.Bc4 Bd6 10.Ba3+=) 9.Ba3+/– Nc6 10.Be7 Ne7 11.Nbd2 0–0 12.Rb1 Qa6 13.Qc2 Qd6 14.e4 de4 15.Ne4 Ne4 16.Be4 Nc6 (16...Nf5 17.Rbd1+/–) 17.Bh7+– Kh8 18.c5 Qd8 19.Be4 Nd4 20.Nd4 Qd4 21.c6 bc6 22.Rb3 (better is 22.Bc6 Ba6 23.Rfd1+–) 22...Rd8 23.Rd3 (23.Bc6 Ba6 24.Ba8 Bf1 25.Kf1 Ra8 26.Rh3 Kg8=) 23...Qf6 24.Qc6 (24.Bc6?! Rb8 25.Rf3 Qg6 26.Qg6 fg6+/–) 24...Rb8 25.Rfd1 Rf8 26.Rh3 Kg8 27.Bh7 Kh8 28.Qc5 Rd8 (28...Re8 29.Qh5 Qh6 30.Qf7 Kh7 31.Rh6 Kh6 32.Qf4 g5 33.Qf6 Kh7 34.Qg5 Rb7 35.Qh5 Kg7 36.Qe8 Rc7+–) 29.Bg6 Kg8 30.Rh8!! (30...Kh8 31.Qh5 Kg8 32.Qh7 Kf8 33.Qh8 Ke7 34.Qd8) 1–0. pcmvr (2800) – iozeph (2480), net–chess.com, 2006.

4.d4 Qb6 5.Nf3 Nf6 +=.

4.d4 Qc7 5.Bd2 Nc6 6.Nf3 b6 (6...Nf6 7.c4+=) 7.Bd3 Bb7 8.0–0 0–0–0 (8...Nf6!?+=) 9.c4 a6 (9...e6 10.Nc3+/–) 10.Nc3 Kb8? (better is 10...e6+/–) 11.Rb1 Ka7 (11...e6 12.Na4+–) 12.Qc2 (12.Nd5 Qb8+–) 12...Qb8? (12...Nb8 13.Qa4 Qc6 14.c5 Qa4 15.cb6 (worse is 15.Na4 b5 16.Ba5 Re8+–) 15...Ka8 16.Na4+–) 13.Rfe1 (13.Qb2 e6 14.Qb6 Ka8+–) 13...Qa8 (13...Nf6 14.Na4+–) 14.e4 (14.Qb3 Kb8 15.d5 e6 16.Qb6 Kc8+–) 14...d6 (14...Qb8 15.Qb3 Bc8 16.Qa4+–) 15.e5 (better is 15.Qb3!? Kb8+–) 15...de5 (15...Nd4 16.Nd4 de5 17.c5 bc5 18.Ba6 Rd4 19.Nb5 Kb8 20.Bb7 Qb7 21.Nd4 e6 22.Rb7 Kb7 23.Qe4 Kc7 24.Qc6 Kd8 25.Nf5 Bd6 26.Ba5 Bc7 27.Bc7 Kc8 28.Nd6) 16.Ne5 (better is 16.Qb2 Kb8 17.Qb6+–) 16...Ne5 17.de5 f6?? (17...e6 18.Na4 Bg2 19.Be3+–) 18.ef6 (better is 18.Be3 Kb8 19.Rb6 Kc7 20.Nd5 Kb8+–) 18...ef6 19.Bh7?? Ne7?? 20.Be4 Be4 21.Ne4 f5 22.Ng3 g6?? 23.Ne2 Bh6 24.Bh6 Rh6 25.h3 Rhh8 26.Ng3 g5?? 27.Re2 g4 28.hg4 fg4 29.Rbe1 Rhe8?? 30.Re7 Re7 31.Re7 (31.Re7 Qb7 32.Rb7 Kb7 33.Qe4 Kc7 34.Qg4+–) 1–0. Fournier,Frederic (1775) – MangaDeChaleko (1810), Active blind, 2011.

4.d4 Qc7 5.Nf3 Nf6 6.c4 e6 7.a3 b6 8.Be2 Ba6 9.Nbd2 Bd6 (9...Bb7 10.Bd3+=) 10.e4+/– e5 11.de5 (11.Bb2!? ed4 12.Bd4+=) 11...Be5+= 12.Ne5 0–0?? (better is 12...Qe5 13.Rb1 Ne4=) 13.Nef3 (13.Nd3 Re8 14.e5 Bc4 15.Nc4 Qc4+–) 13...Re8 14.Qc2 d5 (14...Bb7 15.0–0 Ne4 16.Bd3 Nd2 17.Nd2+– (17.Qd2?! Bf3 18.gf3 Nc6+–)) 15.0–0 (better is 15.e5!? Ng4 16.Bb2 dc4+–) 15...de4 16.Nd4 Nc6 17.Nc6 Qc6 18.Bb2 (18…Bb7 19.Qb3+–) 1–0. Darlanio – rookie2, ChessWorld.net, 2004.

4.Nf3 Qc7 5.Nc3 e6 6.Rb1 Nc6 7.Bb2 a5 (7...Nf6 8.Nb5 Qd8 9.Be2+=) 8.d4 (8.Nb5!? Qb8 9.e4+/–) 8...Nf6 9.Bd3 g6?? (9...d5 10.Nb5 Qd8 11.0–0+=) 10.0–0?? (better is 10.Nb5!? Qb6 11.d5 Bb4 12.c3 Nd5 13.cb4+–) 10...Bg7 (10...d5 11.Nb5 Qd8 12.c4+/–) 11.Ne2 (better is 11.Nb5!? Qb8 12.e4+–) 11...0–0 12.c4 Rb8 13.Qc2 b5?? 14.cb5+– Na7 15.Qc7 Nb5 16.Qb8 Ba6 17.Qf8! Bf8 18.Bb5 Bb5 19.Rfe1 Ba6 20.Nc3 Nd5 21.Nd5 ed5 22.Rec1 Bb4 23.a3 Bd6 24.Bc3 h5 25.Ba5 f5 26.Bb4 Bb4 27.ab4 Bc4 28.Rc4! dc4 29.Ne1 Kf8 30.b5 Ke8 31.b6 Kd8 32.b7 (32.b7 c3 33.b8Q Ke7 34.Qe5 Kf7 35.Rb7 Kg8 36.Rd7 c2 37.Qe8) 1–0. Fournier,Frederic (1890) – FernandoAlonzo (1935), Active Blind, 2011.

4.Nf3 g6 5.Bb2 Nf6 6.Bd4 Qc7 7.Nc3 a6? (7...Bg7 8.Nd5 Qd6 9.Bc4+=) 8.Bf6 (better 8.Nd5! Nd5 9.Bh8+–) 8...ef6+– 9.Nd5 Qd6 10.c4 Bg7 (10...b5 11.e4+–) 11.Rb1 (11.Qb3 0–0+–) 11...0–0 (11...b5 12.a4+–) 12.Qb3 Nc6 13.Be2 (13.Nb6 Ra7 14.d4+–) 13...Ne5 (better 13...b5!?+–) 14.d4+– Nf3 (14...Nc6 15.c5 Qb8 16.Qb6+–) 15.Bf3 (15.gf3?! b5+–) 15...Rb8 16.c5 Qe6 17.0–0 (17.Qb6 Qb6 18.Rb6 Re8+–) 17...b5 (17...d6 18.c6! b5 19.Qa3+–) 18.cb6 Bb7 19.Nc7 Qb3 20.Rb3 (20.ab3?! Bf3 21.gf3 Rb6+=) 20...Bf3 (20...a5 21.Bb7 Rb7 22.Nd5+–) 21.gf3 Rfc8 (21...a5 22.b7 a4 23.Rb6+–) 22.Na6 Rb7 23.a4 (better 23.Nc5 Rc5 24.dc5 Bf8+–) 23...Ra8 (23...Bf8 24.Nc7 Rb6 25.Rb6 Rc7+–) 24.Nc5 Bf8 (24...Rbb8 25.b7 Ra7 26.Rfb1+–) 25.Nb7 1–0. Abdullaevich (1940) – Dose92 (1910), lichess.org, 2020.

3.e3 Nf6

4.Nf3 Qc5 5.Ba3 (5.d4 Qc7+=) 5...Qa5= 6.Bb2 d5 7.Bd3 (7.Be2 Nc6=) 7...Nc6 8.Ne5 (8.0–0 Bg4=) 8...g6 9.Qe2 (9.Nc6 bc6 10.0–0 Bg7=) 9...Bg7 10.Bb5 (10.0–0 0–0=) 10...Qc7=+ 11.f4 Ng4 (11...a6 12.Nc6 bc6 13.Be5=+) 12.Nd3= (12.Ng4?? Bb2 13.Nc3 Ba1 14.Nd5 Qd6–+) 12...Bb2 13.Nb2 Bf5 14.Nd3 0–0 15.h3 (15.Nc3 Rfd8 16.Bc6 Qc6=) 15...Nf6=+ 16.0–0 Ne4 17.Kh2 (17.Rc1 a6 18.Bc6 bc6=+) 17...Qd6 (17...a6 18.Bc6 Qc6 19.Rc1=+) 18.c3 a6 (18...Rfd8 19.Bc6 bc6 20.Ne5=+) 19.Ba4 (19.Bc6 bc6 20.Ne5 f6=+) 19...Rac8 (19...b5 20.Bb3=+) 20.Bc2 Bd7 (20...Rfd8 21.g4 Bd7 22.Nf2 Nf2 23.Rf2=+) 21.Nf2 Nc5 (21...Nf6 22.a4=+) 22.Nd3 (22.Qf3 b5=) 22...Nd3=+ 23.Bd3 (23.Qd3?? Bf5 24.Qe2 Bc2–+) 23...Na5 (23...e5 24.Qf2=+) 24.Kh1 Nc4 25.f5 Ne5 26.Bc2 Bb5 27.d3 Kh8 28.fg6 fg6 29.Rf8 Rf8 30.a4 Be8 31.Nd2= e6 32.Rf1+= Rf7 33.Rf7 Nf7 34.e4 Bc6= 35.a5 Qf4 36.ed5 ed5 37.Qf3 Qd2= 38.Qf7 h5 39.Qf8 Kh7 40.Qe7 Kh8 41.Qe5 Kh7 42.Qe7 Kh8 43.Qf6 ½–½. MChess – Leuschner, 30 sec/move, 1992.

4.Nf3 Nc6 5.Be2 +=.

4.Nf3 e6 5.Nd4 (5.Ba3 Bc5 6.Bc5 Qc5=) 5...Qc5 6.Ba3 Qb6 (6...Qc7 7.Bf8 Rf8 8.Nc3=) 7.Bf8 Rf8 8.Nc3 d5 9.Bb5 (9.Rb1 Qc7+=) 9...Bd7 10.Bd7 (10.Rb1 Bb5 11.Rb5 Qc7=) 10...Nbd7= 11.Rb1 Qc7 12.Qe2 Nb6 13.Qb5 Qd7 14.a4 (14.0–0 Rg8=) 14...Rh8 (14...h6 15.Qd7 Nfd7 16.e4=) 15.a5 (15.d3 Rb8+=) 15...Nc4= 16.Qd7 (16.a6 b6=) 16...Nd7 17.e4 (17.Rb7 Na5 18.Rb1 a6=) 17...Na5 (17...de4!? 18.Rb7 Na5=) 18.ed5+= Nc5 19.de6 fe6 (19...Ne6 20.Ne6 fe6 21.Ke2=) 20.Rb5 (20.Nf3 b6+=) 20...b6= 21.Rc5 (21.Nf3 Rc8=) 21...bc5 22.Ne6 Kf7 23.Nc5 Rhe8 24.Kd1 Rad8 25.N3e4 Nc4 26.d3 Rd5 27.Re1 Rc8 28.Na6 Nb2= 29.Kd2 Nc4 30.Ke2 Nd6 31.Nb4 Re5 32.f4 Re6 33.Kd1 Ne4=+ 34.de4 Rb8 35.c3 a5 36.f5 Rh6 37.Nd3=+ Rh2 38.Ne5? Ke8–+ 39.Re2 Rb1 40.Kc2 Rg1 41.Kb3 Rgg2 42.Rg2 Rg2 43.Nc4 h5 44.Nd6 Ke7 45.e5 h4 46.f6 Ke6 47.f7 Rf2 48.Ne4 Rf7 49.Ng5 Ke5 50.Nf7 Kf4 51.Nd8 h3 52.Ne6 Ke3 53.Ng7 h2 54.Kc2 h1Q 55.Nf5 Kf3 56.Kb2 Qd1 57.Nd4 Ke3 58.Nb3 Kd3 59.Na1 Qd2 60.Ka3 Qc1 61.Ka4–+ Qa1 62.Kb5 Qc3 63.Kb6 Qb4 64.Kc7 a4 65.Kd8 a3 66.Ke8 a2 67.Kd7 a1Q 68.Kc6 Qa6 69.Kd7 Qf8 70.Kc7 Qfd6 0–1. MChess – Leuschner, 3 min/move, 1992.

3.e4 e6

4.Bc4 Bc5= 5.Nf3 Ne7 6.0–0 0–0 7.d3 (7.Be2!?=) 7…d5=+ (8.ed5 ed5=+). gash – grandmaster goldberg, ChessWorld.net, 2005.

4.Nf3 Bc5 5.Bb2 Nf6 6.Bf6 gf6 =.

3.Nf3 Qc5

4.Bb2 Nc6 5.e3 Nf6 6.d4 Qb6 7.Qc1 d6 8.Nbd2 Bf5 9.Bd3 Bd3 10.cd3 g6 11.0–0 Rc8?? (better 11...d5=) 12.Qd1?? (better 12.d5 Bg7 13.Rb1+–) 12...Bg7?? (better 12...Qb2 13.Rb1 Qa2–+) 13.Bc3 a6 (13...0–0 14.Ne4=) 14.a4 (14.d5 Nb8 15.Qa4 Nbd7+–) 14...Qc7 15.Nc4 (15.d5 Ne5 16.Rc1 Nd3 17.Bf6 Qc1 18.Bg7 Qd1 19.Rd1 Rg8+=) 15...b5 16.ab5 ab5 17.Ncd2 b4 18.Bb2 Qb6 (18...0–0!?=) 19.Nc4 Qb5 (better 19...Qb7+–) 20.Qa4 (better 20.d5 Ne5 21.Nfe5 de5 A) 22.Ne5?! Nd5 (22...Qd5? 23.Qa4 Kf8 24.Rfc1+–) 23.Nc4 Bb2 24.Nb2 0–0=; B) 22.Ra5+–) 20...Qa4=+ 21.Ra4 Nd7?? (21...0–0 22.Rc1 Nd5 23.Kf1=) 22.Rfa1 (better 22.d5!? Nce5 23.Nfe5 Be5 24.Rb4 Bb2 25.Rb2+–) 22...0–0 23.Ra6 (23.d5 Bb2 24.Nb2 Nb6 25.dc6 Na4 26.Ra4 Rc6=) 23...Ndb8 (23...d5!? 24.Nb6 Nb6 25.Rb6 Rc7=+) 24.Rb6 Nd7 25.Rb7 Ndb8? (better 25...Nf6!?=) 26.d5+– Nd8 (26...Bb2 27.Nb2 Ne5 28.Ne5 de5 29.Rb4+–) 27.Re7 Bb2 28.Nb2 Rc2 (better 28...Rc5 29.Re4 Na6+–) 29.Nc4 b3 30.Rb1 Rc3 31.h3 (better 31.Ne1!? Na6 32.Nd6 Nb4+–) 31...Rd3 32.Nfd2 (32.Nd4 Na6+–) 32...Na6 (32...Rd5!? 33.Rb3 Ndc6+–) 33.Rb3+– Nc5? (better 33...Rd5 34.Rb6 Nc5+–) 34.Rd3 Nd3 35.Kf1 (35.Nd6 f5+–) 35...Kg7 (35...Nb4 36.Nb6+–) 36.Ke2 Kf6 37.Rd7 (37.Kd3?! Ke7 38.e4 f6=) 37...Ne5 38.Rd6 Ke7 39.Ra6 (39.Ne5?! Kd6 40.f4 Kd5=) 39...Nc4 40.Nc4 f5 41.f4 Nf7 42.Ra7 Kf6 43.h4 (better 43.Nb6 Kg7 44.Nd7 Rc8+–) 43...Rc8 (43...Rd8 44.Nb6 Kg7 45.Kf3+–) 44.Kd3 (better 44.Rf7 Kf7 45.Nd6 Ke7 46.Nc8 Kd7 47.Nb6 Kd6+–) 44...Nh6 (44...Rb8+–) 45.Rh7 (45.Ne5!? Rh8+–) 45...Ng4 46.Ra7 (46.Nb6 Rd8+–) 46...Nf2 (46...Rc4 47.Ra6 Kf7 48.Kc4 Ne3 49.Kd4 Ng2+–) 47.Kd4 Re8 (47...Rc4 48.Kc4 Ne4 49.Kd4+–) 48.Ne5 Nd1 (48...Re7 49.Ra6 Kg7 50.Rg6 Kh7+–) 49.Rf7 1–0. alessandrocarvalhaes (1760) – hamzatlili (1770), lichess.org, 2019.

4.Nc3 Qc7 5.Rb1 (5.e4 Nf6+=) 5...Qd8 (5...Nf6 6.e4+=) 6.d3 (6.e4 Nc6+–) 6...Nf6 (6...Nc6 7.e4+=) 7.g3 (7.e4 d5+=) 7...g6 (7...Nc6 8.Bf4=) 8.Bg2 Bg7 9.Bb2 (9.e4 Nc6=) 9...0–0 10.0–0 (10.e4 d6=) 10...d6 (10...Nc6 11.e4=) 11.Qd2 Qe8 (11...Nc6 12.Nb5=) 12.e4 Bd7 (12...e5 13.d4 Nc6 14.de5 Ne5 15.Ne5 de5 16.Ba3+–) 13.Rfe1 White plans e5 (13.Nd5 Nd5 14.Bg7 Kg7 15.ed5 b6+=) 13...Nc6 (13...Bc6 14.d4+=) 14.e5 (14.Nd5 Rb8+–) 14...Ne5 (14...de5 15.Ne5 Ne5 16.Re5+=) 15.Ne5 de5 16.Re5 (16.Bb7 Rb8 17.Bg2+=) 16...Nh5 (16...Bc6!?+=) 17.Re2 (better 17.Ree1 Be6 18.Bb7+–) 17...h6? (better 17...Bg4 18.Ree1 Qd7+–) 18.Nd5+– (18.Bb7?! Rb8 19.Bf3 Nf6+–) 18...Nf6?? (18...Qd8 19.Ne7 Kh7 20.Bg7 Ng7 21.Rb7 Ne6+–) 19.Ne7 (better 19.Bf6 ef6 20.Re8 Rae8 21.Rb7 Be6+–) 19...Kh8 (19...Kh7 20.Bf6 Bf6 21.Ng6 fg6 22.Re8 Rae8 23.Rb7 Re7+–) 20.Bf6 Bf6 (20...Kh7 21.Bg7 Kg7 22.Ng6 Kg6 23.Re8 Rfe8 24.Bb7 Rab8+–) 21.Qh6 1–0. FeegLood (2735) – erasaaksze (1755), lichess.org, 2015.

4.d4 Qa5 5.Bd2 Qb6 (5...Qf5 6.e3+=) 6.Nc3+– Nf6 (6...e6 7.e4+–) 7.e4 a6 (7...d6 8.Rb1 Qc7 9.Bd3+–) 8.e5 Ng8 9.Bd3 h6 (9...Qd8 10.Rb1+–) 10.Rb1 (10.0–0 e6+–) 10...Qc6 (10...Qd8!?+–) 11.Be4 Qc4 (11...Qc7+–) 12.Bd5?? (better 12.Nd5 Ra7 13.Bc3+–) 12...Qc7+– 13.Bf7! Kf7 14.Nd5 Qc6 (14...Qc4 15.Nb6 Qa2 16.Na8+– (16.Nc8?! b5+–)) 15.e6! Qe6 (15...Qe6 16.Ne5 Combination; 15...de6 16.Ne5 Double attack; 15...Ke6 16.Qe2 Combination) 16.Ne5 Qe5 17.de5 Ra7 (17...Nc6 18.Qh5 g6 19.Qf3 Nf6 20.Bc3+–) 18.Qf3 Ke8 (18...Nf6 19.Nb6 Nc6 20.ef6 ef6 21.Qd5 Ke8 22.Nc8 b5 23.Na7 Na7 24.Qa8 Kf7 25.Qa7 Be7+–) 19.Qh5 Kd8 (19...g6 20.Qg6 Kd8 21.Ba5 b6 22.Bb6 Rc7 23.Bc7) 20.Ba5 b6 1–0. michaelbuss (2790) – revs, ChessWorld.net, 2011.

4.d4 Qb6 5.c4 d6 6.Nc3 Bg4 7.Rb1 Qc7 8.Qb3 b6 9.h3 Bh5?? (better is 9...Bd7+/–) 10.Qb5+– Nd7 11.Qh5 Ngf6 12.Qh4 Qc4 13.Bd2 e6 14.e4 Qc8 15.Bb5 Be7 16.Rc1 Qb7 17.e5 de5 18.de5 Nd5 19.Qg4 Rg8 (19...Nc3 20.Rc3 (20.Bc3?! 0–0+–) 20...Bc5 21.Bd3+–) 20.Nd5 Qd5 (20...ed5 21.Bc6 h5 22.Qh5 Qb8+–) 21.Bc6 (21…Qa2 22.Ba8+–) 1–0. freddy007 (1955) – ricar67 (1685), ChessWorld.net, 2003.

4.d4 Qc6 5.e3 Nf6 6.Bd3 d5 7.0–0 Bg4 8.h3 Bh5 9.Nc3?? (better is 9.Nbd2=) 9...Qc3–+ 10.Rb1 Qc7 11.Be2 Bg6 12.Bd3 Bd3 13.Qd3 e6 14.Ne5 (14.Qb5 Nbd7 15.Qb7 Rc8–+) 14...Nbd7 15.f4 (15.Nd7 Qd7 16.c4 dc4 17.Qc4 Bd6–+) 15...Rc8 16.Rb3 Bd6 17.Bd2 (17.Ba3 Be5 (17...Ne5?! 18.fe5 Ba3 19.ef6–+) 18.fe5 Ne4–+) 17...0–0 (17...Ne5?! 18.fe5 Be5 19.de5–+) 18.Rfb1 b6 (18...Ne5?! 19.de5 Ne4 20.ed6 Qc2 21.Be1–+; 18...Be5?! 19.fe5 Qc2 20.ef6 Nf6 21.Be1 Qd3 22.Rd3–+) 19.Rc3 Qb7 (19...Be5?! 20.fe5 Ne5 21.Rc7 Nd3 22.Rc8 Rc8 23.cd3–+; 19...Ne5?! 20.fe5 Qe7 21.ef6 Qf6 22.e4 Rc3 23.Bc3 de4 24.Qe4–+) 20.Rcb3 Rc7 21.R3b2 Rfc8 22.g4 (22.Nd7 Nd7 23.a4 Rc4–+) 22...h6 (22...Ne4 23.Nd7 Rd7 24.a4–+) 23.Rf1 (23.Nd7 Nd7 24.g5 hg5 25.fg5 Rc4–+) 23...Ne4 24.f5 (24.Nd7 Rd7 25.a4–+) 24...Ne5 (24...Be5!? 25.Bb4 Bg3 26.fe6 fe6 27.Rf3–+) 25.de5 Be5 26.fe6 (26.c3–+) 26...Bb2 27.Qe2 (27.ef7 Rf7 28.Rf4 g5–+) 27...Ng3 28.ef7 0–1. BLACKBEARD – rookie2, ChessWorld.net, 2004.

4.d4 Qc7 5.e4 e6 (5...Nf6 6.Bd3+=) 6.c4 Bb4 7.Bd2 Ba5 (7...Bd2 8.Qd2 d5 9.ed5+/–) 8.c5 Bd2 9.Qd2 (< 9.Kd2 d6 10.cd6 Qd6=+; 9.Nfd2?! Ne7+/–; 9.Nbd2?! Ne7+/–) 9...Nf6 10.Nc3 b6? (better is 10...0–0+–) 11.e5 Nd5 12.Nb5 Qc6 13.Nd6 Ke7 (13...Kf8 14.Qg5 Ne7+–) 14.Qg5 f6 15.Qg7 (15...Kd8 16.Qh8 Kc7 17.Qc8) 1–0. marekt – rookie2, ChessWorld.net, 2003.

4.e3 Nc6 5.c4 Qa5 6.Bb2 d6 7.Nc3 Nf6 8.h3 e5 9.Be2 Be7 10.0–0 0–0 11.Qc2 h6 12.Rfd1 Re8 13.a4 a6 14.d3 Bf5 15.Nd2 Nb4 16.Qb1 Bf8 (16...Qc7 17.Ba3 Nc6 18.Nde4+=) 17.Ba3 (17.Nde4 Be4 18.de4 Rab8+/–) 17...d5= 18.cd5 Nbd5 19.Nd5 Nd5 (19...Qd5? 20.e4 Qd7 21.ef5 Ba3 22.Ra3+–) 20.Nc4 Qc7 21.Rc1 Ba3 22.Ra3 e4 23.d4 (23.Rb3 ed3 24.Bd3 Bd3 25.Rd3 Rad8+/–) 23...Qe7 24.Rb3+= Rab8 25.Ne5+/– Rec8 26.Rc8 Rc8 27.Bc4 Be6 28.Rb7 Qg5 29.Bd5 Bd5+/– 30.Rb8 Qd8 31.Rc8 Qc8 32.Qb6 Qc1 33.Kh2 Qc8 34.a5 h5 35.Qd6 Qb7 36.Nd7 Qb5 37.Nc5 Qc4 38.Qa6 Qa2 39.Qc8 Kh7 40.Qf5 g6 41.Qe5 Qf2 42.Qd5 1–0. Novikov,Konstantin Ivan (2215) – Zhukov,Vladimir (1945), Tula Sinitsin mem, 2007.

4.g3 Nc6 5.Bg2 Nd4 6.Nd4 Qd4 7.c3 Qd6 8.d4 e5 (8...Nf6 9.Qb3+=) 9.e3 (9.Na3 Nf6+/–) 9...ed4 10.cd4 Nf6 11.0–0 Be7 12.Qb3 0–0?? (12...Qe6 13.Nc3+=) 13.Bd2 (better is 13.Ba3 Qa6 14.Be7+–) 13...Rb8 14.a3 b6?? (better is 14...Qe6 15.Qe6 fe6+=) 15.Bb4+– Qe6 16.Qe6 fe6 17.Be7 Rf7 (17...Re8 18.Bd6 Ba6 19.Rc1+–) 18.Bf6 (better is 18.Bd6 Ba6 19.Bb8 Bf1 20.Bf1+–) 18...gf6 19.Nd2 Rg7 (19...d5 20.Rfc1+–) 20.Ne4 Ba6 (20...Kf7 21.Rfc1 Ke7 22.d5+–) 21.Nf6 Kf7 (21...Kf8 22.Rfc1 Ke7 23.Nh5+–) 22.Ne4 (better is 22.Nd7 Bf1 23.Nb8 Bg2 24.Kg2+–) 22...Bf1 23.Kf1 d5 24.Nd6 Ke7 25.Nb5 Rc8 (25...Kd8+–) 26.Ke2 (better is 26.Na7 Rc7 27.Nb5+–) 26...Rc2 27.Kf3?? (better is 27.Kd3 Rf2 28.Rg1+/–) 27...Rf7 28.Kg4 Rg7 (better is 28...a6 29.Nc7 Rc7–/+) 29.Kh3+= Rf2? (better is 29...a6!? 30.Na7 Kd6=) 30.Rc1 (30.Na7 Rg6 31.Nc6 Kd6+–) 30...Kf6 31.Rc7 (better is 31.e4 Kg5 32.Rc7 (32.ed5?? Rg6 33.g4 Kf4–+) 32...Rc7 33.Nc7 de4 34.Be4+–) 31...Rg6?? (better is 31...Rc7!? 32.Nc7 Rc2+=) 32.g4 (32.Rh7 Kg5+–) 32...Rb2 (32...h5 33.Nd6 (33.Ra7? Rg4 34.Rh7 Rgg2 35.Rh5 Rh2 36.Kg3 Rhg2 37.Kh3 Rg6–+; < 33.Na7 Rg4 34.Bh1 Rg1–+) 33...hg4 34.Kh4 Rh6 35.Kg3+–) 33.a4 (33.Nd6 Rg8+–) 33...Rh6? (better is 33...h5+/–) 34.Kg3+– Rb3 (34...Rg6 35.Rh7 (35.Na7?! h5 36.Bf3 hg4 37.Bg4 Re2+–) 35...Rg7 36.Rh6 Rg6 37.Rg6 Kg6 38.Na7+–) 35.Kf3 (35.Nd6 Rg6 36.Ne8 Kg5 37.h4 Kh6 38.Kf4+–) 35...Rh2 36.Rc3?? (better is 36.Nd6 e5 37.Ne8 Ke6 38.de5+–) 36...Rb2–+ 37.g5 Kg5?? (better is 37...Kg6 38.Rc6 Rhg2 (38...Rbg2?! 39.Re6 Kh5 40.Rh6 Kg5 41.Rd6–+) 39.Re6 Kh5–+ (39...Kg5?! 40.Re5 Kh4 41.Rd5–+)) 38.Bf1?? (better is 38.Rc8 h5 39.Nc3–/+) 38...Rhf2 39.Kg3 Rf1 40.Rc7 (40.Rc8 Rg1 41.Kf3 Kh4–+) 40...Rbf2 (better is 40...Re1!? 41.Kf3 h5 42.Rg7 Kh4 43.Kf4 Rf2 44.Ke5 Re3 45.Kd6–+) 41.Rh7 (41.Rg7 Kh6 42.Re7 Rf3 43.Kg2 a6–+) 41...Rf3 42.Kg2 R3f2 (42...R1f2!? 43.Kg1 Ra2 44.Ra7 Re3 45.Rg7 Kh4 46.Rh7 Kg3 47.Rg7 Kf4 48.Rg2–+) 43.Kg3 Rf3 (43...Rf7 44.Kg2–+) 44.Kg2 R1f2 45.Kh1 (45.Kg1–+) 45...Rf1 (better is 45...Ra2 46.Rg7 Kf6 47.Rg2 Rh3 48.Kg1 Ra1 49.Kf2 Ra4 50.Rg3 Rg3 51.Kg3–+) 46.Kg2 R3f2 (better is 46...a6 47.Nc7 R1f2 48.Kg1 Ra2 49.Ne6 Kg6 50.Rg7 Kf6 51.Rf7 Kf7 52.Ng5 Kg6 53.Nf3 Kf5–+) 47.Kg3= ½–½. slavisa3 – kilmer48, Live Game Caissa's Web, 2004.

3.Nf3 Nc6

4.e3 e5 5.Bb2 f6 6.Bc4 Bc5 7.Nc3 Nge7 8.0–0 d6 9.a3 Bg4 10.h3 Bh5 11.Be6 f5 12.g4 fg4=+ 13.Ng5 Bg6 14.Qg4 Rd8 15.Bb3 h5 16.Qg2 Rd7 17.Ne6+/– Bb6 18.Nd5 Rg8 19.Bc3 (19...Qa6 20.e4+–) 1–0. Zylla,Johannes – Knorr,B, corr SOK–92–92, 1992.

4.e3 e6 5.Be2 Bc5 6.0–0 Be7 7.d4 Nf6 8.c4 a6 9.Bd2 Qc7 10.Nc3 d5 11.cd5 ed5 12.Qb3 Be6 13.Rfc1 0–0 14.Ng5 h6 15.Ne6 fe6 16.Rab1 Na5 17.Qb6 Qb6 18.Rb6 Kf7 19.Na4 Nc4 20.Bc4 dc4 21.Rb7 a5 (21...Rab8 22.Rb8 Rb8 23.Rc4+–) 22.Rc4 Rac8 (22...Rab8 23.Rcc7 Rb7 24.Rb7+–) 23.Nb6 Rc4 24.Nc4 Ne4 25.Ne5 Kg8 26.Be1 (26.Ba5 Rc8 27.Nd3 Kf8+–) 26...Bb4 27.Bb4 ab4 28.f3 Nc3 29.Rb4 Ra8 30.Rb2 Na2 31.h4 Nc3 32.e4 Ra1 33.Kh2 h5 34.Rb8 Kh7 35.Nf7 Ra2 36.Ng5 Kh6 37.Rb6 Ne2 38.Re6 g6 39.Re7 (39.Re7 Ra7 40.Ra7 Nd4 41.Rh7) 1–0. Matveenko,Yury (2135) – Pirozhkov,Yury (1760), Voronezh Region–ch Seniors, 2008.

2.bc5 a6

3.d4 b6 (3...e5 4.Bb2+–) 4.cb6 Nf6 5.e3 Qb6 6.Nf3 d5 7.Nbd2 Qc7 8.Rb1 Nc6 9.Be2 e5 (9...Bf5 10.Ba3+–) 10.de5 Ne5 11.Ne5 Qe5 12.0–0 Bd6 Do you see the mate threat? 13.Nf3 Qh5 14.c4 (14.Bb2!? Rb8 15.Qd3 Qg6+–) 14...Bg4+– 15.g3 (15.Qa4 Bd7 16.Qc2 dc4+–) 15...0–0 16.Bb2 Ne4 (16...Rab8 17.cd5 Rfe8 18.Bf6 (18.Ba6?? Bf3 19.Qf3 Qf3–+) 18...Rb1 19.Qb1 Bf3 20.Bf3 Qf3 21.Ba1+–) 17.cd5 Rad8 (better 17...Rab8 18.Nd4 Be2 19.Ne2 Rfe8+–) 18.Qd4 (18.Nd4 Nf6+–) 18...f6?? (better 18...Nf6 19.Kg2 Bh3 20.Kh1 Bf1 21.Rf1 Rb8=) 19.Qe4+– Rfe8 20.Qc4 Bf3 21.Bf3 Qf3 22.Rfe1 h5 (22...Rc8 23.Qa6 Rc2 24.Rf1 Qd5 25.Qa4+–) 23.Rbd1 Re4 24.Qe2 Qf5 (24...Qe2 25.Re2 Kf7 26.Bd4+–) 25.f3 (25.Qa6 Kh7+–) 25...Ree8 26.e4 Qg6 27.Kg2 h4 28.Qf2 h3? (better 28...Rc8 29.g4 h3 30.Kh1 Qf7+–) 29.Kh3 Kf7 30.Kg2 Rh8 31.f4 Qg4 32.Kg1 (32.e5 Bb4 33.Rf1 Qh3 34.Kh1 Qh5+–) 32...Qh3 (32...Bb4 33.Rf1+–) 33.e5 (33.Bc1!? Qh5 34.e5 Bb4+–) 33...Bc5 Threatening mate: Qxh2 34.Bd4 (34.Qc5 Qh2 35.Kf1 Qb2 36.e6 Kg8+=) 34...Rc8 (34...Bb4 35.e6 Kg8+–) 35.Bc5 Rc5 36.e6 Kg6 37.f5! Kg5 (37...Qf5 38.Qc5) 38.Qf4 (38.e7 Rcc8 39.d6 Qf5 40.Qe3 Kg6+–) 38...Kh5 39.Qf3 (better 39.Re4 Rhc8 40.Qf3 Kh6 41.Rh4 Qh4 42.gh4 Rc3 43.Qf4 Kh5+–) 39...Kg5 40.Qg2 (40.Qe3 Kf5 41.Qc5 Qh2 42.Kf1 Qh1 43.Ke2 Rh2 44.Kd3 Qf3 45.Kd4 Qg4 46.Kc3 Qg3 47.Re3 Qg2+–) 40...Qg4 (40...Qg2 41.Kg2 Rc2 42.Kf3 Kf5+–) 41.Qd2 Kh5 42.Qe2 (better 42.e7 Rc7 43.d6+–) 42...Kh6 (42...Qe2 43.Re2 Kg5+–) 43.Qg4 Kh7 44.Qg6 Kg8 45.e7 Rc8 46.e8Q (46.e8Q Re8 47.Re8) 1–0. BeepBeepImAJeep (2455) – CaparoT1 (2340), lichess.org, 2018.

3.d4 e5 4.e3 +=.

3.d4 g6 4.e4 f5 (4...Bg7!?+/–) 5.ef5+– gf5?? (better is 5...d5 6.fg6 hg6+–) 6.Qh5# 1–0. Trkn – guest1872, ICC, 2004.

3.e4 e5 4.Qh5 d6 5.cd6 Bd6 6.Nc3 +=.

3.e4 e6 4.Bb2 (4.d4 Nc6+/–) 4...Nf6 5.e5 Ne4 6.d4 Qa5 7.Nd2 Nc3 8.Bc3 Qc3 9.Ne2 Qa5 10.c3 Nc6 11.Nc4 Qc7 12.Rb1 Na5 (12...Be7 13.Nf4+–) 13.Nb6 Be7?? (13...Rb8+–) 14.Na8 Nc4 (14...Qd8+–) 15.Nc7 Kd8 16.Na8 (16…b5 17.cb6+–) 1–0. market (1840) – zeisig (1750), GameColony.com, 2002.

2.bc5 b6

3.Ba3 Nf6 4.Nc3 (4.cb6 ab6 5.e3 e5 6.Bf8 Kf8+–) 4...e6 5.d4 (5.e4 Nc6+=) 5...Be7 (5...bc5 A) 6.Bc5? Qa5 7.Qd2 d6–+ (7...Bc5?! 8.dc5 Qc5 9.Rb1=+); B) 6.dc5 Qa5 7.Bb2 Bc5 8.e3–/+) 6.e4 (better 6.Rb1+=) 6...Nc6?? (better 6...bc5 7.Bc5 Qa5=+) 7.d5+– ed5 (7...bc5 8.dc6 Qa5 9.Qf3+=) 8.ed5+– Ne5 (8...0–0 9.dc6 dc6 10.Qd8 Rd8 11.Nf3+–) 9.d6 (better 9.Qe2 0–0 10.d6 (10.Qe5?! Bc5 11.Bc5 Re8 12.Qe8 Qe8 13.Be3 Bb7+–) 10...Bd6 11.cd6+–) 9...Bf8?? (better 9...bc5 10.de7 Qe7+–) 10.Qe2 (better 10.Nb5!? bc5 11.Nc7 Qc7 12.dc7 Be7+–) 10...Nfg4 (10...Bd6 11.cd6 0–0+–) 11.h3 (11.Nd5 f6 12.Nc7 Kf7 13.Na8 bc5+–) 11...f6 12.hg4 bc5 13.f4 (13.Bc5!? Qa5 14.Qe3 Kd8+–) 13...Qa5 14.Bb2 (better 14.Rh3 Qa3 15.fe5 Kd8+–) 14...Bd6 (14...Rb8 15.0–0–0 Rb2 16.Kb2 Qb4 17.Kc1 Qf4 18.Qd2 Qg4+–) 15.Nf3 0–0 (15...Ba6 16.Qa6 Qa6 17.Ba6 Nf3 18.gf3 Bf4+–) 16.fe5 Be5 17.Ne5 (better 17.Qc4!? Kh8 18.Ne5 Re8+–) 17...Re8 18.Qc4 Kh8 (18...Re6 19.0–0–0 h6 20.Nd7 Bd7 21.Rd7+–) 19.Rh7! Kh7 Decoy theme: h7 20.Qe4 A double attack (20.Bd3 f5 21.Qf7 Re5 22.Kf2 Re2 23.Ne2 Qe1 24.Re1 d5 25.Qg7) 20...Kg8 21.Qa8 (better 21.Bc4 d5 22.Bd5 Be6 23.Be6 Re6 24.Qa8 Kh7 25.Qe4 Kg8+–) 21...Re5 (21...Kf8 22.0–0–0 fe5 23.Qf3 Ke7 24.Nd5 Kd8 25.Qf5+–) 22.Kd2 Qc7 (22...Qd8 23.Nb5 d5 24.Be5 fe5 25.Be2+–) 23.Nb5 (23.Bc4!? Re6 24.Nd5 Qa5 25.Kd3 Qd8 26.Qc8 Qc8 27.Ne7 Kf8 28.Nc8 a5+–) 23...Qa5 (23...Qb7 24.Qb7 Bb7 25.Be5 fe5 26.Re1+–) 24.Bc3 (24.Bc3 Qd8 25.Be5+–) 1–0. petrobbo (1935) – justapawn2 (1965), ChessWorld.net, 2011.

3.cb6 Bb7 4.ba7 e5?? 5.Bb2 (better 5.ab8B Rb8 6.Nf3+–) 5...Ra7 (5...Nc6 6.e3+–) 6.Be5 Bc5 (6...Nc6 7.Bc3+–) 7.Bg7 Qh4 (7...Bg2 8.Bg2 Qg5+–) 8.Nh3 (8.e3 Bg2 9.Bg2 Qg5 10.Bh8 Qg2+–) 8...Nf6 (8...Bg2 9.Bg2 Qg4 10.Bh8 Qg2+–) 9.Bh8 Ne4 The mate threat is Qxf2 10.e3 Nc6 11.Qf3 (11.d3 Nf6+–) 11...Bb4 (11...Nb4 12.Qd1+–) 12.Bd3 f5 (12...Nc5 13.Bf1+–) 13.Be4 (better 13.Qf5 Nd8+–) 13...fe4 14.Qf4 Qh6 (14...Be7 15.Qh4 Bh4+–) 15.Qh6 (15.Qh6 d6 16.Qh5 Kd7 17.Qf5 Kc7 18.Qh7 Kb8 19.Qe4+–) 1–0. aravind555 – andrey7474, lichess.org, 2018.

3.cb6 h5? 4.ba7+– Nc6. GuestSXCS – GuestQWFC, freechess.org, 2017.

3.d4 bc5+= 4.d5 Na6 5.Nc3 Bb7 (5...g6!?=) 6.e4+/– Qa5 7.Bd2 (7...Rb8 8.Nf3+/–) 1–0. BLACKBEARD – RX7 MASTER, ChessWorld.net, 2004.

3.e4 bc5 4.Nf3 Nc6 5.Be2 Nf6 6.0–0 (6.Nc3 Rb8=) 6...e6 (6...Ne4 7.d3 Nf6 8.Be3=+) 7.d4 (7.Nc3 Rb8=) 7...cd4 (7...Ne4 8.Nbd2 Nc3–+) 8.Nd4= Qb6 (8...Ne4 9.Bf3 Nd4 10.Qd4 d5 11.Be4 de4 12.Qe4 Qd5 13.Qd5 ed5=+) 9.c3 (better is 9.Nc6!? dc6 10.Qd3=) 9...Ne4=+ 10.Nd2?? (better is 10.Bf3 d5 11.Be4 de4 12.Be3=+) 10...Nc3–+ 11.Nc4 (11.Qe1 Nd4 12.Bd3 Bb7–+) 11...Qd4 12.Bb2 Qd1 13.Bd1 Nd1 14.Rad1 d5 15.Ne5 Ne5 16.Be5 f6 17.Bg3 Bc5 18.Rc1 Bb6 19.Bd6 Kd7 20.Ba3 Ba6 21.Rfe1 Rhc8 (22.Red1 Rc4–+) 0–1. gtate (1955) – yknets (2295), net–chess.com, 2005.

3.cb6 ab6

4.Bb2 Ra2?? 5.Ra2+– b5 (5...Nf6 6.Nf3+–) 6.e3 (6.Nf3 Bb7+–) 6...b4 (6...Bb7 7.Bc3+–) 7.Nf3 (7.Qg4 Qc7 8.Qb4 Nc6+–) 7...b3 (7...Bb7 8.Bb5+–) 8.cb3 g5 (8...Bb7 9.Bc4 Nc6 10.0–0+–) 9.Ng5 (better 9.Bh8 e6+–) 9...Nh6 (9...Nf6 10.Ra8 Bb7 11.Bc4+–) 10.Be2 (10.Bh8 d6+–) 10...Ng4 (10...Rg8 11.Nh7 Bb7+–) 11.Bg4 (better 11.Bh8 e6 12.Qc2 Ba6 13.Ne6 de6 14.Ba6 f5+–) 11...Bh6 12.Nf7 Bf8 13.Bh5 (13.Nd6 ed6 14.Bh5 Ke7 15.Qf3 Bb7 16.Qf6) 13...Rg8 14.Nh8 (14.Nd6!) 14...Rg6+– 15.Qc2 e5 16.Bg6 Ke7 17.Qc5 (17.Qf5 Qb6 18.Qe5 Qe6 19.Ba3 d6 20.Bd6 Kd7 21.Ra7 Bb7 22.Rb7 Kc8 23.Rc7 Kd8 24.Qe6 hg6 25.Nf7) 17...d6 18.Qa7 (18.Ra7 Qd7 19.Qc8 Qa7 20.Nc3 Qa5 21.Qe8 Kf6 22.Ne4 Kg7 23.Qf7 Kh8 24.Qf8) 18...Bb7 19.Qb7 Qd7 20.Qb8 Qc8 21.Ra7 (21.Qc8 hg6 22.Qc7 Kf6 23.Qf7 Kg5 24.h4 Kg4 25.Qg6) 21...Qc7 (21...Qb7 22.Rb7 Kf6 23.Qf8 Kg5 24.Qf5 Kh4 25.Rh7) 22.Rc7 (22.Qc7 Kf6 23.h4 hg6 24.Qf7) 22...Ke6 (22...Kf6 23.Qf8 Kg5 24.Qf5 Kh4 25.Rh7) 23.Bf7 (23.Qc8 Kf6 24.Qf5) 23...Kf6 (23...Kf5 24.Qc8 Kf6 25.Qg4 Bh6 26.Bg6 hg6 27.Qg6) 24.Qd8 Kf5 25.Qd7 (25.Qh4 d5 26.Qh5 Ke4 27.Qh7) 25...Ke4 (25...Kf6 26.Qg4 Bh6 27.Bg6 hg6 28.Qg6) 26.f3 Kd3 27.Qb5 (27.Rc3) 1–0. GuestXSBG – PLAYETXW, freechess.org, 2016.

4.Bb2 d5 5.Nf3 Nf6 6.Bf6 ef6 7.e3 Bd6 8.Nc3 Bc5 9.Bb5 Kf8 10.0–0 g6 11.Rb1 Bd7 (better is 11...Kg7+–) 12.d4 Kg7? (12...Bd6 13.Nd5 Be6+–) 13.dc5 bc5 14.Qd5 Ra5 (14...Bb5 15.Qd8 Rd8 16.Rb5+– (< 16.Nb5 Ra2 17.c4 Ra4+–)) 15.Rfd1 Bf5 (15...Ra3 16.Qc5 Qa5+–) 16.Qd8 (16...Rd8 17.Rd8+–) 1–0. Klaus Behrmann (1620) – BLACKBEARD, ChessWorld.net, 2003.

4.Bb2 Nf6 5.e3 e6 6.Bc3 (6.Bb5 Ba6 7.Nc3 Bb5 8.Nb5 Be7+/–) 6...Be7 7.Nf3 Ra7 8.g3 (8.Bb5 Bb7+/–) 8...0–0+= 9.Bg2 Bb7 10.0–0 d6 11.d4 (11.d3 Nbd7+=) 11...Nbd7 12.a3 Qa8 (12...d5 13.Ne1=) 13.Bb4+= Rc8 14.Nbd2 Bf8 (14...Ne4 15.Ne1=) 15.c4+= d5 16.Bf8 Nf8 17.cd5 (17.Ne5 Ra3 18.Ra3 Qa3+=) 17...Nd5 18.Qe2?? (18.Ne5 b5+=) 18...Ra3 (better is 18...Ba6 19.Qd1 Bf1 20.Nf1 Ra3 21.Ra3 Qa3–+) 19.Ra3= Qa3 20.Qd1 Qa8 21.Qb1 Nf6 22.Rc1 Nd5 23.Rc8+= Qc8 24.Qb6?? Nb6 25.h3 Bf3 26.Bf3 Nd5 27.Bd5 ed5 28.Kg2 0–1. Fournier,Frederic (1925) – sempre (1845), Active, 2009.

4.Nc3 e5 5.Nf3 Qf6 6.e4 Bb4 7.Nd5 Qd6 8.Bb2 (8.Nb4?! Qb4 9.c4 Nf6+/–) 8...f6 9.Ne5! (9.Nb4?! Qb4 10.Bc3 Qe4 11.Be2 Ne7=) 9...fe5 (9...Qe5 10.Be5) 10.Qh5 (10.Nb4?! Qb4 11.Qh5 Kf8 12.Qe5 Nf6=) 10...g6 (10...Kd8 11.Be5 Nf6 12.Bd6 Nh5 13.Bc7 Ke8 14.Nb4 Ra4+–) 11.Qe5 Qe5 12.Be5 Na6 13.Ba6 Ra6 14.Nb4 Ra5 (14...Ra4 15.Rb1 Nf6 16.Bf6+–) 15.Bh8 Bb7 16.f3 Ne7 1–0. Tihomir Glowatzky (1880) – BLACKBEARD, ChessWorld.net, 2003.

4.c4 e5 5.Bb2 Nc6 6.Nc3 Bb7 7.Nf3 Nf6 8.e3 Be7 9.Be2 0–0 10.0–0 h6 11.d4 e4 (11...ed4 12.Nd4 Nd4 13.Qd4+/–) 12.Nd2 d5 13.cd5 Nd5 (13...Nb4 14.Qb1+–) 14.Nde4 f5 15.Nd5 fe4 (15...Qd5 16.Nc3 Qd8 17.Rb1+–) 16.Nf4 (16.Ne7?! Ne7 17.a4 Rf7+–) 16...Rf6 (16...Qd6 17.Qb3 Kh7 18.Qb6+–) 17.Bc4 Kh8 18.d5 Rd6 (18...Na5 19.Bb5 Rf7+–) 19.Qg4 Bg5 20.dc6 Bc6 (20...Bc8 21.Qh5 Ba6 22.Qf7+–) 21.Rad1 Bf4 (21...Bd7 22.Be6 Be8+–) 22.Qg7 1–0. Darlanio – BLACKBEARD, ChessWorld.net, 2004.

4.c4 e5 5.Nc3 Bb7 6.Nd5 (6.Nf3 e4 7.Nd4 Nf6+=) 6...Bd5 (6...Nf6 7.d4+=) 7.cd5 Nf6 8.Bb2 Nd5 (8...e4 9.Qb1+/–) 9.Be5+/– d6 (9...Nc6!? 10.Bb2 Nf6+/–) 10.Bb2 (10...Nc7 11.Nf3+/–) 1–0. Martello – Olechno, corr 3GMM–37, 1996.

4.d4 Na6 (4...Nf6 5.Nf3+–) 5.e3 (5.e4 Bb7 6.f3 e6+–) 5...Nh6 (5...Bb7 6.Ba3+–) 6.Nf3 (6.e4 Ng8+–) 6...Nb4 (6...d5 7.Ne5 Nc7 8.c4+–) 7.Bd2 (better 7.c3 Nc6 8.e4+–) 7...Ba6?? (better 7...e6+–) 8.Bb4 Ng4 (8...Bf1 9.Rf1 Ng4 10.Nbd2+–) 9.Ba6 Ra6 10.h3 (better 10.c4+–) 10...h5 (10...Nf6+–) 11.hg4 hg4 (11...h4 12.Rh4 Rh4 13.Nh4+–) 12.Rh8 gf3 13.Qf3 Ra4 14.a3 (14.Qh3 Rb4 15.Rf8 Kf8 16.Qh8) 14...Rb4 15.ab4 1–0. GuestCXLM – GuestHXWH, freechess.org, 2016.

4.e3 Nc6 5.Nf3 d5 (5...e5 6.Bb2 e4 7.Nd4+–) 6.Be2 Nf6 7.0–0 e5 (7...e6 8.Bb2+–) 8.d4 (8.Bb5!? Bd7 9.Bc6 Bc6 10.Ne5+–) 8...e4+– 9.Ne5 Ne5 (better 9...Bd7!?+–) 10.de5+– Ng8 (10...Nd7 11.Qd5 Ra5 12.Qe4 Re5 13.Qd3+–) 11.c4 (better 11.Bb5 Bd7 12.Qd5+–) 11...dc4+– 12.Qd8 Kd8 13.Bc4 (13.Bc4 Ra5 14.Rd1 Ke8 15.Nc3 Re5 16.Bb5 Rb5 17.Nb5+–) 1–0. BeepBeepImAJeep (2660) – LionMind (2365), lichess.org, 2016.

4.Nf3 d5 5.e3 Bb7 6.Bb5 Bc6 7.Nc3 Nf6 8.Ne5 Bb5 9.Nb5 Nbd7 10.Bb2 Ra5? (better is 10...e6+/–) 11.Nc6+– Qc8 12.Na5 ba5 13.Bc3 e5 14.Ba5 Qc5 15.a4 Be7 16.d4 ed4 17.ed4 Qc6 18.Nc7 Kf8 19.Qe2 Bd8 20.Qa6 Qc7 (20...Qa6 21.Bb4 Qd6 22.Bd6 Be7+–) 1–0. Frank Bendig (1915) – BLACKBEARD, ChessWorld.net, 2003.

4.Nf3 Nf6 +/–.

3.cb6 Qb6

4.Nc3 Bb7 5.Rb1 Qc6 (5...Qc7 6.Nb5 Qc8 7.Nf3+–) 6.e4+– Na6 (6...Nf6 7.Qf3 e5 8.Qf5+–) 7.Bb5 (7.Nf3 Rb8+–) 7...Qc7 8.Qe2 (8.Nge2 e6+–) 8...Qc8 (8...Nc5 9.d4 Ne6 10.Qc4 Qc4 11.Bc4+–) 9.Nf3 e6 (9...Nf6 10.e5 Nh5 11.Qe3+–) 10.0–0 (10.Bd7!? Qd7 11.Ne5 Qc8 12.Qb5 Bc6 13.Nc6 Nc7+–) 10...Bc5 (10...Nc7 11.Ba4+–) 11.Na4 (11.d4 Bb4 12.Na4 Be7+–) 11...Bb6 (11...Be7 12.d4+–) 12.c4 (12.d4 Nb8+–) 12...Ne7 (12...Bc7 13.Bb2 Nf6 14.Bf6 gf6 15.d4+–) 13.Ne5 (13.Ba6 Ba6 14.Nb6 ab6+–) 13...Nc6 14.Bc6 dc6 (14...Bc6 15.Nb6 ab6 16.d3+– (16.Rb6?! Qc7 17.Rc6 dc6+–)) 15.Nb6 ab6 16.Rb6 (16.d4 c5 17.d5 0–0+–) 16...Qc7 17.Rb7 (better 17.Qe3!?+–) 17...Qb7+– 18.Ba3 (18.d4 0–0+–) 18...c5+= 19.Nd3 Qc7 20.Nb2 (better 20.Qe3!?+=) 20...0–0 (20...Qa5 21.Qe3=+) 21.Qe3 (21.Nd3 Qa5 22.Bb2 Qa2=+) 21...Nb4–/+ 22.f4 (22.Rc1 Na2 23.Rb1 Rfb8–/+) 22...Rfc8 (better 22...Nc2 23.Qc5 Qb7–+) 23.Rf3? (better 23.Rc1–/+) 23...Nc2–+ (23...Na2?! 24.d4 Nb4 25.Bb4 cb4 26.Rf1–/+) 24.Qc3 (24.Qc5 Na3 25.Qc7 Rc7–+) 24...Na3 (24...Ra3?! 25.Qc2 Rf3 26.gf3 Qf4 27.Kg2–+) 25.Rg3 (25.f5 ef5 26.ef5 Rcb8–+) 25...f6 (25...g6!? 26.f5–+) 26.Qf6 Ra6 27.Qh4 (27.Qc3 Rd8 28.Nd3 Rd4–+) 27...Qb7 28.Nd1 (28.Qf6 Nc2 29.Nd1 Kh8–+) 28...Qe4 29.Re3 (29.Rh3 Nc4 30.d3 Qd4 31.Kh1 h6–+) 29...Qd4 30.Qe1 (30.Qf2 Nc4 31.Re2 Ra2 32.Qd4 cd4–+) 30...Nc2 (30...Nc2 31.Qf2 Ra2–+) 0–1. phs2014 (1675) – mountaindog (1680), gameknot.com, 2017.

4.Nc3 Nc6 5.d3 e6 6.Bf4 (6.Bd2!?+–) 6...Nf6 7.a4 (7.Bd2!?=) 7...Bb4=+ 8.Qd2?? (better 8.Bd2=+) 8...0–0 (8...Nd5 9.Rb1 Nc3 10.Rb4 Qb4 11.e4–+) 9.Nf3 (9.e4 d5 10.Nge2 d4–+) 9...Ng4 (better 9...Nd5!? 10.Ra3–+) 10.Rb1 (10.h3 Nf6 11.Kd1 Qa5–+) 10...Qf2 (better 10...Bc3 11.Rb6 Bd2 12.Kd2 ab6 13.h3–+) 11.Kd1 Bc3 (11...Qc5 12.Rb4 Nf2 (12...Qb4?! 13.Ke1–+; 12...Nb4?! 13.d4 Qe7 14.e3–+) 13.Ke1 Nh1–+ (13...Nb4? 14.d4 Qc6 15.Ne5+–)) 12.Qc3=+ Ne3 13.Kd2 Nd5 14.Qa3?? (better 14.Qc4 Nf4 15.Qf4=+) 14...Nf4–+ 15.g3 Nd5 16.h4 (16.c4 Ne3 17.Qd6–+) 16...Qg3 17.Rh3 (17.Qc5 Qf4 18.Ke1 Ncb4–+) 17...Qf4 18.Kd1 (18.Ke1 Ba6 19.Kf2 Rab8 20.Rb8 Rb8–+) 18...Nd4 (better 18...Ne3 19.Ke1 Nc2 20.Kf2 Na3–+) 19.Nd2 (19.Qc5 Ne3 20.Ke1 Ndc2 21.Kf2 Ba6–+) 19...Ne3 (better 19...Nf5 20.Kc1 Ng3 21.Rg3 Qg3–+) 20.Kc1 (20.Re3 Qe3 21.Qc5–+) 20...Nec2 (better 20...Nf1 21.e3 Ne2 22.Kd1–+) 21.Qb2 Qf2 22.h5 Qe1 0–1. hamidrezaderakhshan – EL_TORTO, lichess.org, 2020.

4.Nc3 e6 5.Rb1 Qd8 6.e4 Nc6 7.Nf3 1–0. Pech,Jaroslav (2085) – Fournier,Frederic (1795), CO1–07 b2–b4.com, 2005.

4.c4 Bb7 5.Nc3 g6 (5...Nf6 6.Rb1 Qc7 7.Qb3+/–) 6.e4 Nc6 (6...Nf6 7.Rb1 Qc7 8.Qf3+/–) 7.Nf3 Bg7 8.Qb3 (better is 8.Rb1!? Qc7 9.Nd5+–) 8...Qb3+= 9.ab3 Bc3 (9...Nb4!? 10.Ra4 a5+/–) 10.dc3+– e6 (10...Nf6 11.Bd3+–) 11.Bd3 Nge7 12.0–0 (12.Bg5 d6+–) 12...0–0 13.c5 a5 14.Bb2 Ba6 15.c4 Rab8 16.Bc2 Nb4? 17.Ra5 Ra8?? 18.Nd4 Bb7?! 19.Rb5 Nc2 20.Rb7 Nd4 21.Bd4 Rfd8 22.Bf6 Rac8 23.Be7 Re8 24.Bd6 Red8 25.Ra7 h5 26.b4 g5 27.b5 g4 28.b6 Ra8 29.Rfa1 Ra7 30.Ra7 f5 31.ef5 ef5 32.b7 Kf7 33.b8Q Rb8 34.Bb8 Ke8 35.Bd6 h4 36.Ra8 Kf7 37.Rf8 Ke6 38.Re8 Kf7 39.Re7 Kf6 40.Rd7 1–0. gtate (1700) – esko, net–chess.com, 2002.

4.c4 Qd4 5.Nc3 Qc4 6.e3 Qc5 7.Qb3 Nc6 8.Ba3 Qa5 9.Bb5 Nf6 10.Qa4 Qa4 11.Ba4 Ba6 12.Nge2 e6 13.Bf8 Rf8 14.Bc6 dc6 15.d4 Rb8 16.0–0 Ke7 17.Rfb1 Kd6 18.Nc1 Bc4 19.Nb3 Bd3 20.Rc1 Nd7 21.Na4 f5 22.f3 Rb4 23.Nac5 Bc4?? (23...Nc5 24.Nc5 Bb5+=) 24.Rab1 (better is 24.Nd7 Kd7 25.Nc5 Ke7 26.a3+–) 24...Bb3+= 25.Nb3 Rfb8 26.Rc2 R8b5 27.Rbc1 Nb8 28.Nc5 Rb1 29.Rb1 Rb1 30.Kf2 Nd7 31.Nb3 g5 32.Kg3 Re1 33.Na5 Nb8 34.Rb2 Kc7 35.Rb7 Kc8 36.Ra7 Re3 37.Nc4 f4 38.Kh3 Rd3 39.Nd6 Kd8 40.Nf7 Ke8 41.Ng5 Rd4 42.Ne6 (42...Rd7 43.Ra8+–; 42.Nh7?! Nd7+/–) 1–0. Labahn,Wolfgang – Haenjes,Frank, Schleswig Holstein–ch qaul, 1998.

4.c4 e5 5.Nc3 Nf6 6.Rb1 Qc5 7.d3 Ng4 8.e3 d6 (better is 8...Nf6+–) 9.Qf3 Nc6 (9...d5 10.Nd5 Qc6+–) 10.Rb5 e4 (10...Nd4 11.ed4 Qd4+–) 11.Qe4 (11.Rc5?! ef3 12.Rb5 fg2 13.Bg2 Bd7+–) 11...Nce5 (11...Nge5 12.Rc5 dc5 13.f4+–) 12.Rc5 dc5 13.Qa8 Bd6 14.Qc8 (14...Ke7 15.Nd5) 1–0. miehnekort – peruano_tierno, Yahoo, 2005.

4.e3 Qb2?? 5.Bb2+– g5 6.Nf3 (6.Nf3 Nf6 7.Ng5+–) 1–0. GuestHKRL – GuestMTFP, freechess.org, 2017.

4.e3 Bb7 5.Nf3 e6 6.Be2 Nf6 7.0–0 Bd6 8.c4 0–0 9.d4 Qc7 10.c5 (10.Ba3 Ba3 11.Na3 a6+–) 10...Be7 11.Nbd2 (11.Nc3 a6+–) 11...Nc6 (11...d6 12.cd6 Bd6 13.Bb2+–) 12.Rb1 (12.e4+–) 12...e5 (12...d6 13.cd6 Bd6 14.Nc4+–) 13.Bb2 (13.de5!? Ng4 14.Bb2 Rab8+–) 13...e4 (13...ed4 14.Nd4 Nd4 15.Bd4+–) 14.Ng5 (14.Nh4 Rfd8+–) 14...d5 15.a3 (15.cd6!? Bd6 16.Nge4 Bh2 17.Kh1 Ne4 18.Ne4+–) 15...Bc8 16.f3 h6 (16...ef3 17.Bf3 Rb8 18.Qc2+–) 17.Nh3 Bh3 18.gh3 Qd7 (18...ef3 19.Bd3+–) 19.fe4 Qh3 (19...de4 20.Bg4 Ng4 21.hg4+–) 20.ed5 (20.Rf3 Qe6 21.ed5 Qd5+–) 20...Nd5? (better 20...Qe3 21.Kh1 Nd5+–) 21.Rf3+– Qh4 (21...Qd7 22.e4 Nc7 23.Kh1+–) 22.Rg3 (22.Qe1 Qe1 23.Re1 Rab8+–) 22...Bg5 23.Nf1 (23.e4 Nf6 24.d5 Rad8+–) 23...Rae8 (better 23...Rfe8 24.Bb5 Rac8+–) 24.Bc1?? (better 24.Bb5 Be3 25.Re3 Re3 26.Bc6+–) 24...Nc3–+ 25.Qc2? (25.Qd3 Nd4! 26.Bd1 Nb1 27.ed4 Bc1–+) 25...Nb1 (better 25...Nd4!? 26.ed4 Ne2 27.Kg2 Nc1 28.Rc1 Bc1 29.Qc1 Re2 30.Kg1 Qd4 31.Kh1–+) 26.Qb1 Nd4! 27.Rg4?? (27.ed4 Qe4 Double attack (27...Re2 Pinning; 27...Re2 Deflection; 27...Qe4 Decoy)) 27...Ne2 28.Kh1 Qg4 (28...Qg4 29.Qh7 Kh7 30.e4 Qe4) 0–1. GuestJKDB – GuestJCJP, freechess.org, 2016.

4.e3 d5 5.Nf3 Ba6 6.Ba6 Na6 7.0–0 e6 8.a4 Bd6 9.Qe2 Nf6 10.c4 (10.Nc3 Ne4+–) 10...Nc7 (10...dc4 11.Qc4 0–0 12.e4+=) 11.cd5 Ncd5 12.Ba3 0–0 13.Bd6 Qd6 14.Rc1 Rab8 15.Nc3 a5 (15...Nc3!? 16.dc3 Rfc8+=) 16.Nb5+– Qe7 17.Nfd4 e5? (better 17...Nb4+–) 18.Nc6+– Qe6 19.Nb8 Rb8 20.Nc7 Qd7 (20...Nc7 21.Rc7 e4 22.Rc5+–) 21.Nd5 Qd5 22.Qc4 (22.Qb5 Rd8+–) 22...Qd7 23.d4 h6 (23...ed4 24.Qd4 Qe8 25.Rc5+–) 24.de5 Ng4 25.Qd4 Qf5 26.Rab1 (better 26.Qf4 Qe6 27.Rc5+–) 26...Rb1–+ (26...Qb1?! 27.Rf1 Qf5 28.h3 Ne5 29.Qd5–+) 27.Rb1 (27.Qd8 Kh7 28.Qd2 Rc1 29.Qc1 Qf2 30.Kh1 Ne3 31.Qb1 g6 32.Qg1–+) 27…Qb1 (27...Qb1 28.Qd1 Qd1) 0–1. RichardSommer (2005) – zytram (1930), lichess.org, 2020.

4.Nf3 Bb7 5.e3 Nc6 6.d4 (6.Nc3 Rb8+/–) 6...d6 (6...Nf6 7.Nbd2+/–) 7.Be2 (7.d5 Qa5 8.c3 Nd8+/–) 7...Nf6 8.Nbd2 g6 (8...Rb8 9.Rb1 Qa5 10.a3+/–) 9.Rb1+– Bg7?? (better is 9...Qc7+–) 10.Rb6 ab6 11.a3 b5 (11...0–0 12.c4+–) 12.Bb5 0–0 13.a4 (13.e4 Rfb8+–) 13...Nb4 (13...Na7 14.Bd3+–) 14.0–0 Ba6 (14...Rfb8 15.c4+–) 15.Ba6 (15.c4!? Bb7+–) 15...Ra6 16.c3 Nd3 (16...Nc6 17.e4+–) 17.Qc2 (better is 17.Qe2 Ra4 18.Qd3 Rfa8+–) 17...Nc1 18.Rc1 Rfa8 19.c4 Ra4 20.c5 Ra2 21.Qc4 d5 22.Qb5 Ne4 23.Ne4 de4 24.Ne5 Rd2 25.c6 Raa2 26.Rf1 Rab2 27.Qa6 Rdc2 28.Qc8 Bf8 29.Qd7 Kg7 30.c7 Rc7 31.Qc7 e6 32.Nd7 Bb4 33.d5! ed5 34.Ne5 Rc2 35.Qc2 d4 36.Ng4 d3 (36...d3 37.Qb2 Bc3 38.Qc3 Kf8 39.Qf6 Ke8 40.Qe5 Kd7 41.Nf6 Kc6 42.Rc1 Kb6 43.Qb2 Ka5 44.Ra1). Fournier,Frederic – Guest4385755, Partie amicale, 1m + 0s, 2008.

2.bc5 Nc6

3.a3 e6 4.Bb2 Nf6 5.e3 (5.d4!?+=) 5...Bc5= 6.d4 Be7 7.Nf3 d5 8.Be2 0–0 9.0–0 a6 10.c4 dc4 11.Nc3 (better 11.Bc4!? b5 12.Bd3=) 11...b5–/+ 12.a4 (better 12.Qc2!?–/+) 12...b4–+ 13.Nb1 c3 14.Bc1 a5 15.Qb3 (15.Qc2 Ba6 16.Ba6 Ra6–+) 15...Ba6 16.Ba6 (16.Bb5 Bb5 17.ab5 Na7 18.Nc3 bc3–+) 16...Ra6 17.Qb4 (17.Nc3 bc3 18.Qc3–+) 17...ab4 0–1. Rombaldoni,Axel (2470) – Lettieri,Giuseppe (2370), Camp. Italiano on–Line, 2010.

3.a4 Qa5 4.e3 Qc5 (4...e5 5.Bb2=) 5.Ba3 Qa5 6.c4 Nf6 7.Nc3 a6 8.Nf3 d6 9.Be2 e5 10.0–0 Be7 11.Nd5 (better 11.Qc2!?=) 11...Nd5–/+ 12.cd5 Nd8 (better 12...Qd5!? 13.d4 Bg4–/+) 13.e4 (13.Qb3+=) 13...0–0 (13...f5 14.Qb1 0–0 15.Ne5 Qd2 16.Bf3 fe4 17.Be4+–) 14.Rb1 (14.Ne5 de5 15.Be7 Re8+–) 14...Qc7 (14...f5 15.Ne5 fe4 16.Nc4+–) 15.Qb3 Bg4 (15...f5 16.Ne5 fe4 17.d3+=) 16.Rfc1 Qd7 (16...Qb8 17.Qe3 Bf3 18.Qf3+–) 17.h3 (17.Ne5!? de5 18.Bg4 Qg4 19.Be7+–) 17...Bf3+= 18.Bf3 Bg5? (better 18...f5+=) 19.Bg4+– Qe7 (better 19...f5 20.Bf5 Qe7+–) 20.Rc2?? (20.Qb6 Bd2 21.Rd1 f5 22.Bd6 Qg5 23.Bf5 Rf6+–) 20...Rb8?? (20...b5 21.Ra2+–) 21.Rbc1 (21.Qb6 f5 22.Bd6 Qe8 23.Bf5 Qa4+–) 21...f6?? (better 21...b5 22.Rc8 Rc8 23.Rc8 Bd2 24.ab5 ab5 25.Qb5 Nb7+–) 22.Rc7+– Qe8 23.Bd6 Rf7 (23...f5 24.Bf8 Qf8 25.Bf5 Qf6+–) 24.Rf7 Qf7 (24...Kf7 25.Bb8 g6 26.Rc8+–) 25.Rc7 (25.Bb8 g6 26.Be6 Ne6 27.de6 Qe8 28.Qb7 Qe6 29.Rc8 Qc8 30.Qc8 Kf7 31.Bd6 Bh6 32.Qd7 Kg8 33.Qe8 Kg7 34.Qf8) 25...Qg6 26.Be6 (26.Bf5 Qh5 27.Re7 g6+–) 26...Kh8?? (26...Ne6 27.de6 Kh8 28.Qb7+–) 27.Rg7! Qg7 (27...Qg7 28.Bb8 Discovered attack; 27...Kg7 28.Bb8 Discovered attack) 28.Bb8 Bd2 29.d6 (29.Bf5 Ba5+–) 29...Ba5 30.Qd5 White prepares d7 (30.Qc4 b5 31.Qc8 Qb7+–) 30...b6? (30...Bb6 31.Bg4 Nc6 32.Qb3 Bf2 33.Kf2 Nb8 34.Qb6+–) 31.d7 (31.Bg4!? b5 32.ab5 ab5 33.Qb5 Qg5+–) 31...Qg5 32.Kh2?? (better 32.g3 b5 33.ab5+–) 32...Qf4= 33.Kh1 Qc1 34.Kh2 Qf4 35.Kh1 Qc1 36.Kh2 Qf4 ½–½. AleksandrNekhoroshik (1690) – MoeCran (1675), lichess.org, 2021.

3.c3 e6 4.d4 Nf6 5.e3 g6 6.Nf3 Bg7 7.Bb5 0–0 8.Bc6 (8.Nbd2 b6+–) 8...bc6 (8...dc6 9.0–0+–) 9.0–0 a5 (9...Ba6 10.Re1+–) 10.Nbd2 d6 11.cd6 Qd6 12.Nc4 Qd5? (better 12...Qc7+–) 13.Nb6+– Qd8 14.Na8 Ba6 15.Ba3 Qa8 (15...Bf1 16.Bf8 Bf8 17.Qf1 Qa8+–) 16.Bf8 Bf1 (16...Bf8 17.Re1 c5+–) 17.Bg7 Kg7 18.Qf1 Qc8 19.c4 c5 20.d5! ed5 21.cd5 Nd5 22.Qc4 Nb4 23.h4 (23.a3 Na6+–) 23...Qc6 24.h5! Qd6 (24...gh5 25.Rc1 Combination) 25.Qc3 Kg8 (25...Kf8 26.a3 Nc6 27.Rb1+–) 26.h6 f5 (26...f6+–) 27.Qg7 1–0. anonym1337 – DanielScooby, lichess.org, 2020.

3.d4 d5 4.Bf4 (4.cd6 Nf6+=) 4...Qa5 (4...Nf6!? 5.Nf3 g6=) 5.Bd2+/– Qc7 6.e3 a5 (6...b6 7.cb6 ab6+= (7...Qb6? 8.c4 dc4 9.Nc3+–)) 7.c4+– a4?? (better is 7...Nf6+–) 8.cd5 Nd4 (8...Nd8 9.Nf3 Nf6 10.Nc3+–) 9.ed4 e6 (9...Nf6 10.Nc3 g6 11.Nf3+–) 10.Bb5 (10.Nc3!? Bd7+–) 10...Ke7 (10...Bd7 11.Nc3 Nf6+–) 11.d6 (11.d6 Qd6 12.cd6 Kd8 13.Na3+–) 1–0. pumpkin (2250) – kozimo (1800), net–chess.com, 2008.

3.d4 e5 (--> 2.bc5 e5 3.d4 Nc6).

3.d4 g6 4.e4 Bg7 (4...Nf6 5.d5 Ne5 6.Bf4+/–) 5.c3 e6 (5...Nf6 6.Qf3+/–) 6.Nf3+– Nf6 7.Bd3 0–0 (7...d5 8.cd6 Qd6 9.e5+–) 8.0–0 (8.e5 Nd5+–) 8...d5 9.cd6 Bd7 (9...Ng4 10.h3 Nh6 11.e5+–) 10.Bg5 (10.e5 Nd5+–) 10...h6 11.Bf4 g5 12.Bc1 e5 (12...g4 13.Ne5 Bc8 14.Nc6 (< 14.Ng4 e5 15.Ne5 Nb8+–) 14...bc6 15.e5+–) 13.d5 (13.Ne5 Be6+–) 13...Nb8 (13...Na5 14.Ne5 Be8 15.f4+–) 14.Ne5 Re8 15.Nd7 Nbd7 (15...Qd7 16.Qf3+–) 16.Nd2 Rc8 17.Qc2 Nc5 18.Bb5 Rf8 (18...Re5 19.f4 gf4 20.d7 Ncd7 21.Rb1+–) 19.Ba3 Qd6 20.Rab1 Ng4 21.g3 b6 22.Nc4 Qf6 23.f3 Ne5 24.Ne5 Qe5 25.c4 Qd4 26.Kh1 h5 27.Bb2 Qd3 28.Qg2 g4? 29.Bg7 Kg7 30.Rbd1 (30...Qe3 31.Qb2 f6 32.Qd4 Qd4 33.Rd4+–) 1–0. Buss,Michael – Armstrong,Alan, corr 3GMM–06, 1995.

3.e3 b6 4.cb6+/– ab6 5.Bb2 d6 (5...e5 6.Nf3 e4 7.Nd4+/–) 6.Nc3 Bd7 7.Qc1 (7.d4 Nf6+/–) 7...e5 8.Nf3 Be7 9.d3 (9.Bb5 Nf6+=) 9...Nf6 10.Be2 0–0 11.0–0 Be6 (11...Ra5 12.e4+=) 12.a3 b5? (12...Ra5 13.e4+=) 13.e4 (13.Nb5 Qb8 14.c4 d5+–) 13...d5 (13...Qb6!?+=) 14.ed5+/– Nd5 15.Nd5 (15.Nb5 Ra5 16.c4 Nf4+–) 15...Bd5 (better is 15...Qd5!? 16.c4 Qc5+/–) 16.c4+– bc4 17.dc4 (17.Ne5?! Ne5 18.Be5 cd3 19.Bd3 Re8+/–) 17...Bf3 18.Bf3 (worse is 18.gf3 Bg5 19.Qb1 Bf4+=) 18...Ra6 19.Re1 Ba3?? (better is 19...Nd4 20.Qd1 Qc7+/–) 20.Ba3 Ra3 21.Ra3 Nd4 22.Qd1 Nf3 23.Rf3 Qd1 24.Rd1 f5 25.Rfd3 e4 26.R3d2 f4 27.g3 fg3 28.hg3 Rf2 29.Rf2 g6 30.Rc1 Kg7 31.c5 1–0. Fournier,Frederic (1770) – thenewone (1640), Active blind, 2011.

3.e3 e5 4.d4 ed4 5.ed4 Nf6 6.Be2 Be7? (6...d6 7.cd6 Bd6 8.Nf3+=) 7.Nf3 (7.d5 Nb4 8.d6 Bf8+–) 7...0–0 (7...d6 8.cd6 Bd6 9.0–0+–) 8.0–0 (8.d5!? Qa5 9.Bd2+–) 8...Re8+= 9.c3 d6 10.d5 Ne5? (better 10...Na5!?+=) 11.Ne5+– de5 12.d6 Bf8 13.Bb5 (13.Bg5 Bd7+–) 13...Bd7 14.c4 Bb5 15.cb5 Nd7 16.Qc2?? White prepares the advance c6 (better 16.c6 bc6 17.bc6+=) 16...Rc8=+ 17.c6 bc6 18.bc6 Bd6 19.Rd1 Nf6 (19...Nb8!?–/+) 20.Bg5 Qc7 21.Bf6 gf6 22.Rc1 (22.Qf5 Qc6 23.Nd2 Be7=+) 22...Kh8 (22...e4!? 23.Nd2 Bh2 24.Kh1 Be5–/+) 23.Qf5= Qe7 (better 23...Re6!? 24.Nd2 Bf8=) 24.Nd2 Rg8 (better 24...Qe6!? 25.Qe6 Re6+–) 25.Ne4+– Rc7? (25...Qd8 26.Rab1 Be7 27.Rd1+–) 26.Rc3 (better 26.Nf6 Rg7 27.Nd5+–) 26...Rg6 27.Rb1 1–0. GuestHJDN – GuestBDSD, freechess.org, 2017.

3.e3 e6 4.d4 Nf6 5.Nf3 d5 6.cd6 Bd6 7.Bd3 Qc7 (7...e5 8.Nbd2+=) 8.0–0 h6 (8...e5 9.Nc3 Qe7 10.Ne4 Ne4 11.Be4+–) 9.Nbd2 g5 (9...Nb4 10.Ba3+–) 10.Nc4+– g4 11.Nd6 Qd6 12.Nd2 h5 13.Nc4 Qc7 14.Ba3 Bd7?? (14...Nd5+–) 15.Nd6 Kd8 16.Nf7 Kc8 17.Nh8 Nd5 (17...Be8 18.Ng6+–) 18.c4 Nf6 19.Nf7 h4 (19...Ne8 20.Rb1+–) 20.Bd6 Qb6 (20...Qa5 21.Bf4 e5 22.Ne5+–) 21.Rb1 Qa6 22.c5 Qa5 (22...Qa3 23.Ne5 Qa2 24.Nc4+–) 23.Bf4 Nd5 (23...Ne8 24.Qg4 h3+–) 24.Bd6 (better 24.Qg4 Nd8 25.Nd6 Kc7 26.Nc4 Kc8 27.Na5 e5+–) 24...Nc3?? (24...Nf6 25.Qb3 b6+–) 25.Qg4+– Nb1 (25...b5 26.Bf4 e5 27.Qg8 Kc7 28.Qa8 ef4 29.d5+–) 26.Rb1 (better 26.Qg8 Nd8 27.Be5+–) 26...Qa2 27.Qg8 Be8 28.Qe8 Nd8 29.Qd8 1–0. BeepBeepImAJeep (2575) – szinkod (1965), lichess.org, 2017.

3.e3 g5 4.Be2 (4.d4 Bg7+–) 4...d5 (4...Qa5 5.Bb2 Nf6 6.Nf3 Qc5 7.Bf6 ef6 8.0–0+=) 5.cd6! Qd6 (5...Qd6 6.Ba3 Decoy; 5...ed6 6.Nc3 Combination) 6.Bb2 f6 (6...Nf6 7.Nc3+–) 7.Bh5 (7.Nf3 e5+–) 7...Kd8 8.c4 (8.d4 Bf5+–) 8...Be6 (better 8...e5+–) 9.Qa4 (9.Be2 Bf5+–) 9...Nh6 (better 9...Qb4!? 10.Qa3 Bc4=) 10.Nc3 (10.Bc3 Bd7+–) 10...g4 (better 10...Qb4 11.Be2 Qa4 12.Na4 Nb4+–) 11.Nb5 (better 11.d3!?+–) 11...Qc5 (11...Qb4 12.Qc2 Bc4 13.Na3=+) 12.Nd4 Nd4 (better 12...Bg8=) 13.Bd4?? (better 13.Qe8 Kc7 14.Bd4 (worse 14.ed4 Qb6 15.Qb5 Qb5 16.cb5 Bd5=) 14...Re8 15.Bc5+–) 13...Qh5–/+ 14.Bb6 (better 14.Ba7!? Kc8 15.Ne2–/+) 14...Kc8–+ 15.Bd4 (15.Ba7 Bd7 16.Qa3 Bc6–+) 15...Bd7 16.Qb3 (16.Qc2 Bc6 17.e4 e5–+) 16...Bc6 17.Ne2 (17.Kf1 Nf5 18.Re1 g3–+) 17...e5 (17...Bg2?! 18.Nf4 Qf5 19.Ng2=+) 18.Bc3 (18.c5 ed4 19.Qe6 Bd7 20.Qf6–+) 18...Qe8 (better 18...Bg2 19.Rg1 Bf3–+) 19.0–0 Bc5 (better 19...Nf5 20.d3 Qd7–+) 20.f3?? (20.d4 ed4 21.Nd4 Ba4–+) 20...Ba4 (better 20...gf3 21.gf3 Qg6 22.Ng3 Nf5–+) 21.Qb2 b5 (21...Qe7!? 22.d4 Ba3 23.Qd2–+) 22.fg4 (22.Rab1 gf3 23.Rf3 Be7–/+) 22...Ng4 (22...bc4 23.Rab1 Bc6 24.Ng3–+) 23.h3 bc4 (23...Rb8 24.Rab1 Kd7 25.hg4=) 24.hg4 (24.Rab1 Bc6 25.hg4 Be7–/+) 24...Rb8 25.Qc1 Be7 (25...Qe6 26.g5 fg5 27.Qe1–/+) 26.Rb1 (26.d4 Qb5=) 26...Bb5 (26...Bc6 27.Rb8 Kb8 28.Qb1 Ka8 29.d4 cd3 30.Qd3–/+) 27.a4 (27.d4 e4+=) 27...Ba4 (27...Bc6!?=+) 28.Rb8= Kb8 29.Qb2 (29.g5 Rf8=) 29...Bb3 (29...Kc7 30.Qa2 Bc6 31.Qc4=+) 30.d3 (30.g5 Bd6 31.gf6 Rf8+–) 30...Qc6?? (better 30...Ka8=+) 31.dc4+– Qc4 32.Rb1 Kc7 (32...Ka8 33.Qb3 Qb3 34.Rb3+–) 33.Ba5 Kd7 34.Qb3 Qe2?? (better 34...Qb3 35.Rb3 Kc6+–) 35.Qd5 Ke8 36.Qa8 (36.Qa8 Kf7 37.Qh8 Qe3 38.Kh2 Qh6 39.Kg3 Qe3 40.Kh2 Qh6 41.Kg3 Qe3 42.Kh2=; 36.Rb8 Bd8 37.Rd8 Ke7 38.Qd7) 1–0. GuestNTSW – GuestQBCZ, freechess.org, 2017.

3.Bb2 e5

(--> 2.bc5 e5 3.Bb2 Nc6).

4.e3 Bc5 5.Nf3 d6 (--> 2.bc5 e5 3.Bb2 Nc6 4.Nf3 Bc5 5.e3 d6).

3.Bb2 e6

4.d4 Nf6 5.e3 Be7 6.Nf3 (6.c4 d6 7.cd6 Bd6+/–) 6...0–0 (6...b6 7.cb6 Qb6 8.Bc1+=) 7.Bd3 (7.c4 d6 8.cd6 Bd6+/–) 7...b6+= 8.cb6 ab6 9.0–0 Nb4 10.Bc4 (10.Ba3 Nd3 11.Be7 Qe7 12.Qd3 Bb7+=) 10...d5 (10...Qc7 11.Bb3=) 11.Bb3 Ba6 12.Re1 Ne4 13.Nbd2 f5 14.c4 (better is 14.Rb1+=) 14...Nd3–/+ 15.Qc2 Ne1 16.Re1 Bf6?? (better is 16...Rc8 17.a4 Bb4–/+) 17.cd5+= ed5 18.Ne4 fe4 19.Qe4 Kh8? (better is 19...Bb7!?+=) 20.Qd5+– Qe7 21.Qc6 Rac8 22.Qb6+– Bb7 23.Nd2 Rc6 24.Qb5 Qd6?? 25.Qe2 Bd8 26.Nc4 Qc7 27.Ne5 Rd6 28.f3 h6 29.Qd3 White plans d5 29...Rff6 30.e4 White intends d5 30...Qe7 31.Ng4 Rf8 32.d5 Qg5? 33.Bc1 Qh4 34.Ne5 Qe1 35.Qf1 Qf1 36.Kf1–/+ Bf6?? 37.Nc4?? Bc3?? 38.Ke2 Ba6 39.Ba3= Bc4 40.Bc4+= Ra6?? 41.Bf8+– Ra2 42.Ba2 Ba5 43.Kd3 Kh7 44.d6 Bb6 45.d7 Bc7 46.Be7 Kg6 47.d8Q Bd8 48.Bd8 Kh7 If Black now only could play e5... 49.Kd4 Kh8 50.e5 g5 51.e6 Kg7 52.e7 Kf6 53.e8Q Kf5 54.Qe5 (54.Qe5 Kg6 55.Qe6 Kh5 56.g4 Kh4 57.Qh6; 54.Qe4) 1–0. Fournier,Frederic – Stevenson, Active (5/0), 2005.

4.e3 Bc5?? 5.d4 (better is 5.Bg7 d5 6.Bh8+–) 5...Bb6?? (5...Be7 6.d5 Bf6 7.Bf6 (7.dc6? Bb2 8.Nd2 Ba1 9.cd7 Bd7 10.Qa1 Nf6–+) 7...Qf6 8.c3 ed5 9.Qd5+=) 6.Nf3?? (better is 6.d5 Ba5 7.Nd2+–) 6...Nf6 7.Bd3 0–0 8.0–0 d5 9.c4 a6 10.c5 Bc7 11.Nbd2 Bb6?? (better is 11...b6+=) 12.cb6+– 1–0. Fournier,Frederic (1715) – piomega, Active (4/0), 2005.

4.e3 f6 5.d4 d5 (5...d6 6.cd6 Bd6 7.c4+/–) 6.Nf3 (6.c4 Nge7+/–) 6...e5 (6...b6 7.cb6 Qb6 8.Bc3+=) 7.c3 (7.c4 Be6+/–) 7...e4 (7...Be6 8.Qb3+/–) 8.Nfd2+/– f5 9.Be2 g6 (9...Nf6 10.c4+/–) 10.0–0 Nge7 11.Na3 Bg7 12.c4 dc4 (better is 12...0–0!?+/–) 13.Nac4+– Be6 (13...0–0 14.Nd6 Be6 15.Rb1 Ba2 16.Bc4 Bc4 17.N2c4+/– (17.N6c4?! Qd5+=)) 14.Nd6 Kf8 15.Bc4 (15.Nb7?! Qb8 16.d5 Bb2 17.dc6 Nc6+=) 15...Bc4 16.N2c4 Qc7 17.Qb3 Rb8 18.Rab1 (18.Rfd1 Nd5+–) 18...Nc8 (18...Nd5 19.Na3 Nf6 20.Nab5+–) 19.Nc8 (19.d5 Nd8+–) 19...Qc8 (19...Rc8 20.d5 Nd8 21.Nd6+–) 20.Nd6 Qc7 21.Bc3 Na5?? 22.Ba5 Qa5 23.Qc2 Ke7 24.Rfc1 Bf8 25.Nb7 Qc7 26.Nd6 Rb1 27.Rb1 Kf6 28.Rb7 Qc6 29.Qb3 Bd6 30.cd6?? Qd6 31.Ra7 Rc8 32.g3 Rc7 33.Rc7 Qc7 34.a4 Qc1 35.Kg2 Qc7 36.Qb5 Qa7 37.a5 Kg5 38.Qb6 Qa8 39.a6 h5 40.Qb7 Qa6 41.Qa6 Kh6 42.Qa7 Kg5 43.Qa6 Kh6+– 44.Qa7 Kg5 45.Qb8 Kh6 46.Qc7 Kg5 (46...Kg5 47.Qg7 h4 48.gh4 Kh4 49.Qh6 Kg4 50.h3). Fournier,Frederic (1810) – astronauta1 (1930), Active (1/0), 2005.

4.e3 Nf6 5.d4 d5 6.Bd3 (6.c4 b6 7.cd5 ed5+=) 6...Be7 (6...b6 7.cb6 Qb6 8.Bc1=) 7.Nf3 0–0 8.0–0 Qc7 (8...b6 9.cb6 ab6 10.a4+=) 9.Nbd2 (9.Na3 Rd8+/–) 9...a6 (9...b6!?+=) 10.c4+/– b6 11.cb6 Qb6 12.Rb1 dc4 13.Nc4 Qc7 14.Nce5 (14.Ba3 Ba3 15.Na3 Bb7+–) 14...Ne5 (14...Bb7 15.Rc1 Qd6 16.Qb3+/–) 15.Ne5 (15.de5 Nd5+–) 15...Nd5 (15...Bb7 16.Qa4+–) 16.Qe2 (16.Qf3 Bb7 17.Rfc1 Qd6+–) 16...Qd8 (16...Bb7 17.Rfc1 Qd8 18.a3+–) 17.Rfc1 Bd6 18.Be4 (18.Nc4 Bb7+–) 18...Qf6 (18...Bb7 19.f4+/–) 19.Bd5 (19.Qc2 Nb4 20.Qa4+– (20.Ba8?! Nc2 21.Rc2 Qe7+/–; 20.Bh7?! Kh8 21.Qe4 Ra7+–)) 19...ed5+/– 20.Nf3 (20.Rc6!? Rb8 21.Rbc1+/–) 20...Bg4 21.h3 Bf3 22.Qf3+/– Qf3 23.gf3 f5 24.f4 Rf6 25.Kg2 Rg6+= 26.Kf3 Rh6 27.Rh1 Re6 28.Bc3+/– Rc8 29.Rbc1 Re7 30.Bd2 Rec7+= 31.Rc7 Rc7 32.Rc1 Kf7 33.Rc7+/– Bc7 34.a4 Ke6 35.Ke2 Bb6 36.Kd1 Bc7 37.Kc2 Bd8 38.Kb3 g5 39.Bb4 gf4= 40.ef4 Bh4 41.Bd2 Bf2 42.Kc3 Bg3 43.Be3 Kd6 44.Kb4 Kc6 45.Ka5 Kb7 46.Kb4 Be1?? 47.Kc5+– Ba5. Fournier,Frederic – Fumanchero (1700), Active, 2007.

4.e3 Nf6 5.d4 d5 6.Nf3 e5 (6...b6 7.Bb5 Bd7 8.cb6 Qb6 9.a4+=) 7.Bb5 (7.Ne5!? Ne5 8.de5+–) 7...e4 8.Bc6 bc6 9.Ne5 Ba6 (9...Nd7 10.Nc6 Qf6 11.Nb4+=) 10.Nc6+– Qc7 11.Ne5 Rb8 12.Qc1 Be7 (12...Nd7 13.Nd7 Qd7 14.Nc3+=) 13.Nc3 (better 13.c4+–) 13...Nd7?? (better 13...0–0+=) 14.Kd2?? (better 14.Nd5 Qc8 15.Ne7 Ke7 16.d5 Ne5 17.Be5 Qc5 18.Bb8 (18.Bg7?! f6 19.Qd2 Rhd8+=) 18...Qc3 19.Kd1 Rb8 20.Rb1+–) 14...Ne5=+ 15.de5 Qe5?? (15...Bc5 16.a3–/+ (16.Nd5? Rd8–+)) 16.Rb1?? (16.Nb5 Qf5 17.Nc7 Kf8 18.Na6 Qf2 19.Kd1 Qg2+–) 16...Qc7 (better 16...0–0–/+) 17.Nd5+= Qc5 18.Ba3?? (18.c4 Rd8 19.Bg7 Bc4 20.Bh8 Qd5 21.Bd4 Qa5 22.Kd1 Qh5 23.f3 ef3 24.g4–/+) 18...Qa3 (better 18...Qd5 19.Ke1 Rd8–+) 19.Qa3 Ba3 20.Nc7 (better 20.Rb8 Kd7 21.Rh8+–) 20...Ke7= 21.Na6 Rb1?? (better 21...Rhd8 22.Kc3 Bb2 23.Kc4 Rdc8 24.Nc5 Rb6–/+) 22.Rb1+– Bd6 23.Rb7 Ke6 24.Ra7 Rc8 (better 24...Rd8 25.Kc3 Rc8 26.Kb3 Bh2+–) 25.Nb4?? (better 25.h3+–) 25...Bb4–+ 26.c3? (26.Kc1 Rd8 27.Ra6 Ke5–+) 26...Bd6 (26...Bc3 27.Ke2–+) 27.Ke2? (better 27.h3–+) 27...Rc3 28.Ra6 Rc2 29.Kd1 (29.Kf1–+) 29...Rf2 30.g3 (30.g4 Rh2 31.Ra4 Kd5–+) 30...Rh2 31.a4 Ke5 (31...Rh3!? 32.Ke2–+) 32.Ra5 Ke6 33.Rb5?? (33.Ra6 Rg2 34.g4–+) 33...Ra2–+ 34.a5 g6 35.Kc1 (35.g4 f5 36.gf5 gf5–+) 35...h5 36.Kb1 f6 (better 36...Ra3–+) 37.Ka2+– Bg3 (37...Kd7 38.a6 Kc6+–) 38.a6 Bd6 39.Rb6 Ke5 (39...Kd7 40.a7 Bc5 41.Rb7 Kd6 42.a8Q Be3 43.Qa6 Kd5 44.Rb5 Bc5 45.Qb6 e3 46.Qc5 Ke4 47.Qc6 Kf4 48.Qf6 Ke4 49.Rb4 Kd5 50.Rd4 Kc5 51.Qd6 Kb5 52.Rd5 Kc4 53.Qc5) 40.Rd6! Kd6 41.a7 Kc7 (41...f5 42.a8Q Ke7+–) 42.a8Q Kd6 43.Qa3 (better 43.Qe4 f5 44.Qe8 Kd5+–) 43...Ke5 44.Qa4 Kf5 45.Qa5 (45.Qd4!? g5+–) 45…Kg4 0–1. avz81 (1700) – steba (1620), lichess.org, 2018.

3.Bb2 Nf6

4.d4 d6 5.cd6 ed6 6.Nf3 Bf5 7.Nbd2 Nb4 Exerts pressure on the backward pawn 8.e4 Ne4 (8...Be4 9.Ne4 Combination; 8...Ne4 9.Bb5 Double attack) 9.Bd3 (better 9.Bb5 Ke7 10.Qe2+–) 9...Nd3=+ 10.cd3 Nf6 11.0–0 Bd3 12.Re1 Be7 13.d5 Ba6 (13...0–0 14.Qb3 Ba6 15.Nd4=+) 14.Ne4 (14.Bf6!? gf6 15.Nd4+–) 14...Ne4 (14...0–0 15.Rc1=+) 15.Re4 (15.Qa4!? Qd7 16.Qe4+=) 15...0–0=+ 16.Nd4 (16.Qd2 Rc8=+) 16...Bf6–/+ 17.Qg4 (17.Qd2 Qd7–/+) 17...Re8 (17...Bc4!?–+) 18.Rae1–/+ Re4 19.Re4 (19.Qe4 h6=+) 19...Qc7 (19...Qb6!? 20.Bc3–+) 20.Re1 Rc8?? (20...Qc4 21.Qe4 h6 22.Ba1–+) 21.h3?? (better 21.Nf5 Bb2 22.Ne7 Kf8 23.Nc8+–) 21...Bd3 (21...Rf8 22.Nb5 Qd8 23.Bf6 Qf6 24.a4=+) 22.Kh2 (better 22.Re3 h5 23.Qh5=+) 22...Bg6?? (22...Rf8 23.Qg3 Bg6 24.Qb3–/+) 23.Ba1?? (better 23.Rc1 Qc1 24.Bc1 Rc1 25.Qd7+–) 23...Be5 (23...h5 24.Qf3–/+) 24.g3 (24.f4 h5 25.Qf3 Bf6–/+) 24...Qc4 (better 24...Qc5 25.f4 f5–+) 25.Qd1? (25.Nf5 Qg4 26.hg4 Bf5 27.Be5 Bg4 (27...de5?! 28.gf5 f6 29.d6–/+) 28.Bd6 Bf3–+) 25...Bd3 (25...Qa2 26.Qe2 Qe2 27.Re2–+) 26.Nf3? (better 26.Re3!? Qa2 27.Rd3 Qf2 28.Kh1 Bg3 29.Rd2–/+) 26...Ba1–+ (26...Qd5?! 27.Be5 de5 28.Ne5–/+) 27.Qa1 Be4?? (better 27...Qd5 28.Qc1 Bc4–+) 28.Nh4?? (better 28.Nd2 Qd5 29.Ne4=) 28…Qd5–+ (28...Qd5 29.Rd1 Qc5–+) 0–1. alessandrocarvalhaes (1880) – slipsten (1900), lichess.org, 2020.

4.e3 e6 5.d4 d5 6.Bd3 (6.c4 b6 7.cd5 ed5+=) 6...Nb4 (6...b6 7.cb6 Qb6 8.Bc1=) 7.Nf3 (7.Bb5 Nc6+/–) 7...Nd3 (7...b6 8.Bb5 Bd7 9.Bd7 Qd7 10.c3+=) 8.cd3 Bd7 9.0–0 b6 10.cb6 (10.Ba3 Rc8 11.cb6 Ba3 12.Na3 Qb6+/–) 10...Qb6 (better is 10...ab6 11.Ne5 Bd6+=) 11.Nbd2?? (better is 11.Ba3+/–) 11...Qb2–+ 12.Nb3 Qa3 13.Ne5 Ba4 14.Qb1 Bb4 15.Rc1 0–0 16.Nc6 a5 17.Nb4 Qb4 18.Nc5 Rfc8 19.Qb4+= ab4 20.Na4 Rc1 21.Rc1 g6 22.Nc5= Ra2 23.Nb7?? b3–+ 24.Nc5 b2 25.Rb1 Ra1 26.g3 Rb1 27.Kg2 Rc1 0–1. Fournier,Frederic (1770) – piratin (1745), Active (1/1), 2005.

4.Nf3 e5 5.Ne5+– Ne5 6.Be5 Bc5 7.Bb2?? (better 7.e3+–) 7...Qb6–/+ 8.Qc1 Bf2 9.Kd1 0–0 (9...Ng4!? 10.Bg7 Bd4 11.Bd4 Qd4–+) 10.e3 Bh4 11.g3 Bg5 12.Be2 Ne4 13.Rf1 d5 14.d3?? (better 14.Bd4 Qc6 15.Qb2=+) 14...Be3–+ 15.Nd2 (15.Qe3 Qe3 16.de4 de4 17.Ke1–+) 15...Nd2 16.c4 (16.Rf4 Ne4 17.Qe3 Qe3 18.de4 de4–+) 16...dc4 (better 16...Nc4 17.dc4 Bc1 18.Bg7–+) 17.Qc3 f6 18.Rf5 (18.Rf4 Bf4 19.gf4 cd3 20.Kd2 Re8 21.Qc4 Kh8–+) 18...cd3 (better 18...Bf5 19.g4 Bd3 20.Bd3 cd3 21.a4–+) 19.Bd3 Bf5 20.Bf5 Rad8 21.Bd3 Ne4 22.Qc4 Kh8 (22...Rf7!? 23.Kc2 Nf2 24.Qb5 Nd3 25.Qb6 Bb6 26.Bc3–+) 23.Qe4 Qb2 (better 23...f5 24.Bg7 Kg7 25.Qe5 Kg6–+) 24.Rb1 (24.Qh7) 24...Qb1 (24...Qd2) 25.Ke2–+ Qd3! 26.Qd3 Rd3 27.h4 Bb6 (27...Ra3 28.Kf3 Bg1 29.Kf4 Rc8 30.Ke4 g6 31.Kd5 Rd3 32.Ke6 Kg7 33.Ke7 Bc5 34.Ke6 Re8) 28.g4 Rfd8 (28...Re3 29.Kf2 Rfe8 30.g5 Rc3 31.Kg2 Re2 32.Kf1 Rf2 33.Ke1 Rc1) 29.h5 (29.a3 Rd2 30.Kf3 Rf2 31.Ke4 Re8 32.Kd3 Re3 33.Kc4 Rf4 34.Kd5 Rd4) 29...Rd2 30.Kf3 R8d3 31.Ke4 (31.Kf4 Rf2 32.Ke4 Re3 33.Kd5 Rf4 34.h6 Rd4) 31...g6 (31...Re3 32.Kf5 Rf2) 32.hg6 (32.g5 Re3 33.Kf4 f5 34.hg6 Rf2) 32...hg6 (32...Re3 33.Kf5 Rf2) 33.g5 Kg7 (33...Re3 34.Kf4 f5 35.a3 Rf2) 34.gf6 Kf6 35.Kf4 (35.a4 g5 36.a5 Re3) 35...Rd4 (35...Rc3 36.a3 Rd4) 36.Kf3 (36.Kg3 Bc7 37.Kf3 Kf5 38.a3 R4d3) 36...R2d3 (36...Kf5 37.Kg3 R4d3 38.Kh4 Bf2) 37.Kf2 (37.Ke2 Kf5 38.a4 Rd2 39.Ke1 Ba5 40.Kf1 Ra4 41.Kg1 Ra1) 37...Ra3 38.Ke2 Rb4 (38...Ra2 39.Ke3 Rdd2 40.Ke4 Ra3 41.Kf4 Rd4) 39.Kd2 Rb2 40.Kc1 (40.Kd1 Raa2 41.Kc1 Be3 42.Kd1 Rb1) 40...Raa2 41.Kd1 Rh2 (41...Rb1) 42.Kc1 (42.Ke1 Rh1) 42…Ra1 (42...Rh1) 0–1. alessandrocarvalhaes (1890) – CEBOUS (1895), lichess.org, 2020.

3.d4 d6

4.d5 Ne5 5.cd6 Qd6 6.e4 Qb4 (6...Nf6!? 7.Bf4 Nd3 8.Bd3 Qf4+=) 7.Nd2+/– Nf6 8.Rb1 Qa5 9.Ngf3 Nf3 (9...Ned7 10.c3 Nc5 11.Qc2+/–) 10.Qf3 Bg4 (10...Nd7 11.a3+–) 11.Qg3 (11...Bd7 12.Rb7 Ne4 13.Qa3 Qa3 14.Ba3+–; 11.Qf4 Bc8+–) 1–0. MT – guest5674, ICC, 2004.

4.cd6 e6 5.e4 Bd6 6.e5 +/–.

3.d4 e6

4.e3 d5 5.c3 (5.Nf3 e5+/–) 5...b6 6.cb6 Qb6 7.Qc2 (7.c4!?+/–) 7...Ba6= 8.Ba6 Qa6 9.Ne2 (9.Qe2 Qe2 10.Ne2 Rb8+=) 9...Rb8 (9...Nf6 10.a4=) 10.Nd2 (10.e4 Nf6 11.ed5 Nd5+=) 10...Ba3 (10...Nf6 11.a3=) 11.Nb3 (11.Ba3 Qa3 12.Rb1 Rb1 13.Nb1 Qa6+/–) 11...Bc1 (11...Bd6 12.e4+=) 12.Qc1 Nge7 13.0–0?? (13.Nc5 Qc4+=) 13...0–0?? (better is 13...Qe2 14.Re1 Qc4–+) 14.Ng3 Rb7? 15.Qd2?? Rb5 16.Rfb1 Rfb8+= 17.Qc2 Qc8 18.Nc5 Rb1 19.Rb1 Rb1 20.Qb1 g6 21.Qb3 a5 22.Ne2 Qb8 23.Qb8 Nb8 24.Nc1 Nec6 25.a4 Ne7 26.N1b3 Nbc6 27.Nb7 Nf5? 28.N7a5+– Na7 29.Kf1 Nd6 30.Ke2 Nc4. Fournier,Frederic (1825) – astronauta1 (1780), Active (1/0), 2005.

4.e3 d6 5.cd6 Bd6 6.Nf3 f5 (6...Nf6 7.c3+=) 7.Bc4 Nf6 8.0–0 0–0 9.Nbd2 Kh8 10.Bb3 a6 11.c4 Bc7 (11...b6 12.Ba4 Qc7 13.Rb1+–) 12.Bb2 b6 13.Rc1 Qe8 (13...Bb7 14.c5 bc5 15.Be6 cd4 16.ed4+– (16.Nd4 Nd4 17.Bd4 Bh2 18.Kh1 Ng4 19.Bf5 Nf2 20.Rf2 Qh4+–)) 14.Ne5 (14.Ba3 Rg8+–) 14...Bb7 15.Ndf3 (15.f4 Ne5 16.fe5 Qg6+–) 15...Rc8 (15...Ne5 16.Ne5 Be5 17.de5+=) 16.Nc6 (16.Ba4 Ng4 17.d5 ed5 18.cd5 Nge5 19.Be5 Be5 20.Bc6 Bc6 21.Rc6 Rc6 22.dc6 Bc7+–) 16...Bc6 17.d5 Ba8 (17...Bb7+–) 18.d6 (better 18.Ng5 ed5 19.cd5+–) 18...Bd6?? (better 18...Bf3 19.Qf3 Bd6+=) 19.Qd6+– Ne4 (19...Bf3 20.gf3 Rc6 21.Qb4+–) 20.Qe5 (20.Qb6 Nc5 21.Ne5 Nb3 22.ab3 Rb8 23.Qa6 Rb3+–) 20...Nf6 (20...Qg6 21.Rcd1+–) 21.c5 (21.Nd4!? Rc5 22.Qd6 Ne4 23.Qb6 e5+–) 21...Bf3 22.gf3 Qh5 (22...Rc5 23.Rc5 bc5 24.Be6 f4+–) 23.cb6 Rce8 (23...Rcd8 24.Be6 Qf3 25.Rc7+–) 24.b7 (24.Be6 Qf3 25.Qf5 Qf5 26.Bf5 Nd5+–) 24...Qf3 25.Qg3 Qb7 (25...Qh5 26.Bf6 gf6 27.Be6 Re6 28.Rc7+–) 26.Rc7 Qc7 (26...Nh5 27.Rb7 Ng3 28.hg3+–) 27.Qc7 Nh5 28.Bd1 (28.Qc6 e5+–) 28...Nf6 29.Be2 (29.Ba4 Rc8 30.Qe7 Rb8+–) 29...Kg8 (29...Rc8 30.Qd6 Rfe8 31.Bf6 gf6 32.Ba6+–) 30.Bc4 Rf7 (30...Kh8 31.Ba6 Rg8 32.Rd1+–) 31.Qg3 (better 31.Qc6 Rfe7 32.Ba3 Ra7+–) 31...Rfe7 (31...Ne4 32.Qg2 g6+–) 32.Bf6 Rf7 33.Be5 f4 34.ef4 h6 35.Bd3 (35.Bd3 Rd8 36.Qg6 Rd3 37.Qd3 Rf6 38.Rc1 g5 39.Rc8 Kg7 40.Rc7 Kg8 41.Qh7 Kf8 42.Qh8; 35.f5 h5 36.Be6 Re6 37.fe6 Re7 38.Qg5 Ra7 39.Rd1 Rd7 40.Rd7 Kh7 41.Qg7) 1–0. BeepBeepImAJeep (2655) – galarce (2240), lichess.org, 2015.

4.e4 d5 5.cd6 Bd6 6.c3 Nge7 7.e5 Bc7 8.Bd3 Ng6 9.Nf3 0–0 10.Qc2 f6 11.Bg6 hg6 12.Ba3 Rf7 13.Qg6 fe5?? (13...Ba5 14.0–0 b5+–) 14.Ng5 Rf6 (14...Qg5 15.Qg5 ed4+–) 15.Qh7 1–0. orane (1725) – ElRey, Tour 982, 2003.

4.e4 d5 5.ed5 Qd5.

4.e4 d6 5.cd6 Bd6 +/–.

4.Nf3 Nf6 5.Bg5 Be7 6.c3 (6.Nbd2 d6 7.cd6 Qd6+/–) 6...0–0 7.Bf6 Bf6 8.e4 b6 9.e5 Be7 10.cb6 Qb6 (10...ab6 11.Bd3+=) 11.Qb3 (11.Qc2 d6+/–) 11...Qc7+= 12.Bd3 Rb8 (12...d6 13.Qc2 h6 14.ed6 Bd6 15.Nbd2+/–) 13.Qc2 h6 14.h4 (14.Nbd2 Bb7+/–) 14...Bb7 (14...d6 15.ed6 Bd6=) 15.Ng5 (better is 15.Qe2!?+=) 15...Ne5=+ (< 15...hg5 16.Bh7 Kh8 17.hg5+/–) 16.Bh7 (16.de5 hg5) 16...Kh8 17.Be4 f5 18.Bb7 Qb7 19.f3? Nc4 20.Nd2 Ne3 21.Qa4 Qc7 22.Ke2 Rb2 23.Kd3 Nd5 24.c4 Bb4 (25.Rhd1 Nf4 26.Ke3 Ng2 27.Ke2 Qh2 28.Qb4 Rb4–+; 24...hg5?! 25.hg5 Kg8 26.cd5–/+) 0–1. Grehl,Siegfried – Armstrong,Alan, corr 3GMM–06, 1996.

3.d4 Nf6

4.Bb2 Ne4 5.a3 e5 6.de5 Bc5 7.e3 Qh4 8.g3 Ng3 9.Nf3 Qe4 10.hg3 d5 11.Nc3 Qg6 12.Bd3 Qg4 13.Rh4 Qe6 14.Nb5 Ne5 15.Nc7 1–0. mare – MyronsGambit, Internet, 2001.

4.e3 e6 5.Nf3 Be7 6.Be2 0–0 7.0–0 d6 8.cd6 Bd6 9.c4 Rb8 10.Nc3 Bc7 (10...Bb4 11.Qb3+–) 11.a4 a6 12.Ba3 Ne7 13.Rc1 Re8 14.h3 Ng6 15.c5 Bd7 16.Nd2 Bc6 17.Nc4 Nd5 18.Nd5 Bd5 19.Bf3 h6 (19...Nh4 20.Bd5 ed5 21.Nd2+–) 20.Nd6 Bd6 21.cd6 Bf3 22.Qf3 (22.gf3?! b5 23.ab5 ab5=) 22...Qd7?? (better 22...Nh4 23.Qh5 Nf5+–) 23.Rc7+– Qd8 (23...Nh4 24.Qh5 g6 25.Qh4 Qd8+–) 24.Qf7 (24.Qf7 Kh7 25.Qg7) 1–0. BeepBeepImAJeep (2675) – Boltz (2210), lichess.org, 2016.

2.bc5 d5

3.d4 Nc6 4.Nf3 Nf6 5.h3 Bf5 6.a3 e6 7.Bb2 (7.e3 Ne4+=) 7...Be7 8.e3 0–0 9.Be2 (9.c4 b6 10.cd5 ed5+=) 9...h6 (9...b6 10.cb6 Qb6 11.Ra2=) 10.g4 Be4 11.Nc3 b6 12.Rg1 (12.cb6 Qb6 13.Rb1 Bf3 14.Bf3 Rab8=) 12...Rb8 (12...Bf3!? 13.Bf3 bc5=+) 13.Ne5+= Ne5 14.de5 Nd7 15.Ne4 de4 (better is 15...bc5!? 16.Nc5 Nc5=) 16.c6+/– Nc5 17.Bd4 (17.Qd8 Rbd8 18.Bd4 Rc8+/–) 17...Bh4 (17...Qc7 18.Qd2=+) 18.Rb1 (18.Bc5 bc5 19.Qd8 Bd8+= (19...Rfd8?? 20.c7+–)) 18...f6 (better is 18...Qc7=+) 19.Qd2?? (better is 19.ef6 Bf6 20.g5 hg5 21.Bc4+/–) 19...fe5–+ 20.Be5?? (better is 20.Rg2 ed4 21.ed4–+) 20...Bf2 21.Kd1 Qd2 (better is 21...Be3 22.Bd3 A) 22...Bg1 23.c7 Nd3 24.cb8Q (24.cd8R? Rbd8 25.cd3 Rd3 26.Qd3 ed3–+) 24...Nf2 25.Ke1 Qd2 26.Kd2 Rb8 27.Bb8 Nh3 28.Ba7+/–; B) 22...ed3?! 23.Qe3 Rc8 24.g5 Rc6 25.gh6 dc2 26.Ke2–+; C) < 22...Nd3 23.Qe3 Ne5 24.Ke2–+; D) 22...Bd2–+) 22.Kd2–/+ Rbd8 23.Kc3 Bg1 24.Rg1 Rf7 25.c7 Rc8 26.Bb5 Rf3 27.Kb2 (27.Rg3 a6 28.Bc4 g5–/+) 27...Re3 (27...a6!? 28.Bc4 A) 28...Re3 29.Bd4 Rh3 30.Bc5 Rc7 31.Be6 Kh8 32.Bd4= (32.Bb6? Rb7–+); B) 28...Rh3–+) 28.Rd1–/+ Rc7?? (better is 28...Rf3 29.Bd7 Rc7 30.Bc7 Rf7 31.Bb6 ab6–/+) 29.Bc7+– Rh3 30.Bd6 (30.Rd8!? Kh7 31.Ra8 a6 32.Ba6 Na4 33.Kc1 Rc3+–) 30...h5 31.gh5 Rh5 32.Bc5 (32.Bc6 Kf7+/–) 32...Rc5+= 33.Bd7 (33.a4 e3+=) 33...Kf7= 34.Re1 Re5 35.Bc6 e3 36.Bf3 Kf6 37.Kc3 Kg5 38.Kd3 Kf4 (38...Ra5 39.Ra1 Kf4 40.Bc6=) 39.Bd1 (39.Rf1 Ra5 40.Bd5 Ke5=) 39...g5 (better is 39...Rd5!? 40.Kc3 Rd2=+) 40.Rf1= Kg3 41.Rf3 Kh4 ½–½. BLACKBEARD – ricar67, ChessWorld.net, 2004.

3.d4 e5 4.e3 ed4 (4...Nc6 5.Nf3+=) 5.ed4+– (5.Qd4?! Nc6 6.Bb5 Qa5 7.Nc3 a6=) 5...Nc6 6.Nf3 Bg4 7.Be2 Nf6 8.c3 Be7 9.0–0 Kf8 (9...0–0!?+–) 10.Nbd2 h5 11.Ne1 (11.Rb1 Qc7+–) 11...Qd7 12.Nd3 Qf5 (better 12...Be2!? 13.Qe2 h4+–) 13.f3+– Qg6? (13...Qh7+–) 14.fg4 hg4 15.Nb3 Qh6 (15...Re8+–) 16.Bh6 (16.Bh6 Rh6 17.Bg4+–) 1–0. BeepBeepImAJeep (2745) – Isthemoment (2605), lichess.org, 2020.

3.d4 e6 4.Bb2 (4.Nf3 Nc6+/–) 4...b6+= 5.cb6 ab6 6.e3 Bb4 7.c3 Bd6 8.Bd3 (8.c4 Nf6+=) 8...Ba6 9.Ba6 (9.e4 Bd3 10.Qd3 Qg5+=) 9...Na6 10.Nf3 Qc7 (10...Nf6 11.Ba3+=) 11.0–0 Nf6 12.Nbd2 (better is 12.Qa4 Qd7 13.Qb3+=) 12...Rc8?? (12...0–0!?=) 13.Qe2 (13.Qa4 Qc6 14.Qa6 0–0+–) 13...0–0?? (better is 13...Nb8+=) 14.Qa6+– b5 15.Qb5 Rb8 16.Qd3 Rb2 17.Rfb1 Rfb8 18.Rb2+– Rb2 19.a4 Qa5 20.g3 h6 21.Kg2 Nd7 22.c4 dc4?? 23.Nc4+– Qb4 24.Nb2 Qb2 25.Qb1 Qe2 26.a5 Nb8 27.a6! Na6 28.Qb6 Nb4 29.Qd6 Nd3 30.Rf1 g5 31.Ne5 g4 32.Qd8 Kh7 33.Qf8 Ne5 34.de5 Qf3 35.Kg1 h5 36.Qe7 Kh6 37.Qf6 Kh7 38.Qf3 gf3 39.h4 f5 40.Rd1 Kg6 41.Rd6 Kf7 42.Kf1 Ke7 43.Ke1 Kf7 44.Kd2 Ke7 45.Kc3 Kf7 46.Kc4 Ke7 47.Kc5 Kf7 48.Kc6 Ke7 49.Kc7 Kf7 50.Kd7 Kg6 51.Re6 Kf7 52.Rf6 Kg8 53.e6 (53.e6 Kg7 54.Rf5 Kg6 55.Rg5 Kh7 56.e7 Kh6 57.e8Q Kh7 58.Qh5) 1–0. Fournier,Frederic (1825) – ReyDemente, Active (2/1), 2005.

3.cd6 e5 4.Bb2 (4.e4 Bd6 5.Bb5 Nc6+=) 4...Bd6 5.e3 (5.Na3 Bc5 6.Be5 Qb6+/–) 5...Nc6 6.Nf3 Nge7 (6...Nf6 7.Bb5 Qc7 8.0–0+=) 7.Bb5 (7.Nc3 Bg4+=) 7...0–0 (7...a6 8.Bd3+=) 8.0–0 (8.Nc3 a6 9.Be2 b5+=) 8...Bg4 (8...Qb6 9.Qe2+=) 9.Be2 (9.Nc3 Rc8+=) 9...f5 (9...Qb6 10.Ba3 Ba3 11.Na3+=) 10.h3 (10.Ng5 Qb6 11.Bc3 Be2 12.Qe2 Nd8+/–) 10...Bf3 11.Bf3 Qb6 12.Bc3 e4 13.Be2 Nd5 (13...Qc5 14.f3+=) 14.d4 (14.Bc4 Nce7+=) 14...Bb8 (14...Rac8 15.Be1 Qb2 16.Bc4+=) 15.Be1 (15.g3 Kh8+=) 15...Qc7 16.g3 f4 17.Bc4 (17.gf4 Rf4 18.f3 Rg4 19.Bg3 Qg3 20.Kh1 Qh3) 17...Nce7 18.Bb3 (18.Nd2 Kh8 19.Qh5 fg3 20.fg3 Rf1 21.Bf1 Ne3 22.Qe8 Ng8 23.Qe4 Nf1 24.Nf1 Nf6+=) 18...fe3 (18...Qd7 A) 19.gf4 Rf6 (< 19...Qh3 20.Qh5 Qh5 21.f3–+) 20.h4 a5+/–; B) 19.ef4 a5 20.c4+/–) 19.fe3 Rf1 20.Kf1 Kh8 21.Bd5 Nd5=+ 22.Qe2 a5 23.c4 Nb4 24.Nc3 Ra6 25.a3 Rf6 26.Kg1+– Nd3 27.Ne4 Ne1 28.Qe1 Rf3 29.Qe2 Qf7 30.Rf1 Rf1 31.Qf1 Qf1 32.Kf1 Kg8 33.g4 Kf7 34.Ke2 h6 35.Kd3 b6 36.c5 b5 37.Nc3 b4 38.ab4 ab4 39.Nb5 Ke6 40.Kc4 b3 41.Kb3 Kd5 42.Nc3 Kc6 43.Kc4 Bh2 44.d5 Kc7 45.e4 Bg1 46.Nb5 Kb7 47.c6 Kc8 48.d6 Bb6 49.Kd5 Kd8 50.e5 g5 51.e6 (51...Ke8 52.c7 Bc7 53.Nc7 Kf8 54.e7 Kg7 55.e8Q Kf6 56.Qg8 h5 57.Ne8; 51.c7 Kd7 52.e6 Ke8 53.c8Q Bd8 54.Qd7 Kf8 55.Qf7) 1–0. revbodio – NightClub, Live Game Caissa's Web, 2005.

3.e3 Qa5 4.Nc3+=.

3.e3 d4 4.Bb2 b6?? (better 4...de3 5.fe3 Nc6+=) 5.cb6 (better 5.Qf3 Nc6 6.Bb5+–) 5...e5 (5...e5 6.Bb5 Nd7+–). GuestSXCS – GuestQWFC, freechess.org, 2017.

3.cd6 Qd6

4.Ba3 Qf6 5.Nc3 e6 6.Bf8 Kf8 7.e3 Ne7 8.d4 g6 9.Nf3 Kg7 10.Ne4 Qf5 11.Bd3 Qa5 12.Qd2 Qh5 13.Ng3 Qh6 14.Rd1 Rd8 15.c4 Kg8 16.e4 Qg7 17.e5 Nbc6 18.Qf4 b6 19.Ne4 Nd4? (19...Bb7+–) 20.Nd4 Kh8 (20...Bb7 21.Nf6 Kh8 22.0–0+–) 21.Nd6 Rf8 22.Be4 Rb8 23.Qf6 Ng8 24.Qg7 Kg7 25.Nc6 Ra8 26.Ne7! Rb8 (26...Ne7 27.Ba8) 27.Nec8 Rbc8 28.Nc8 Rc8 29.Rd4 f5 30.Rd7 Kh6 31.Bd3 b5 32.Kd2 bc4 33.Rc1 Rb8 34.Rc4 Kg5 35.f4 Kh6 36.Rcc7 Kh5 37.Be2 (37...Kh4 38.Rh7 Nh6 39.Rh6) 1–0. Klaus Behrmann (1960) – ricar67 (1705), ChessWorld.net, 2003.

4.d4 e5 5.e3 Be7 6.Nf3 Nc6 7.Bb2 (7.d5 Nb4 8.e4 f5+–) 7...ed4 8.ed4 (8.Nd4 Nf6+–) 8...Nf6 9.Be2 0–0 10.0–0 Nd5 11.Nc3 (11.Ba3 Qf6 12.Be7 Nde7 13.c3+=) 11...Bg4 (better 11...Nf4!? 12.Bd3 A) 12...Nd4? 13.Nd4 Nd3 14.Qd3+– (14.cd3?! Qd4 15.Qf3 Re8=); B) 12...Nb4=) 12.Nd5+– Qd5 13.c4 Qd8 14.d5 Bf3 15.Bf3 (15.gf3?! Bd6 16.c5 Bf4=; 15.dc6?! Bc6 16.Bd3 Bf6 17.Bf6 Qf6=) 15...Na5 16.Rc1 b6 (16...Bg5 17.Rc2+–) 17.d6 Qd6 18.Ba8 Qd1 19.Rfd1 Ra8 20.Rd7 Re8?? (20...Bc5+–) 21.Re1 (21.Ra7?! Bg5 22.Rd1 Nc4+–) 21...Kf8 (21...f6 22.Ree7 Re7 23.Re7 Nc4+–) 22.Ree7! Re7 (22...Re7 23.Rd8) 0–1. Vazovski,Sergey (1745) – Kehayov,Yulian, FICGS, 2010.

4.Nf3 Nf6 5.e3 e5 (5...Nc6 6.Ba3 Qc7 7.Nc3+–) 6.Ba3 (better 6.Na3 Nc6 7.Bb2+–) 6...Be7?? (better 6...Qc7 7.Bf8 Kf8+–) 7.Bd6+– Bd6 8.Bb5 Nbd7 9.Nc3 a5 (9...0–0 10.Ng5+–) 10.0–0 0–0 11.d4 Nb8 (11...ed4 12.ed4 Nb6 13.Qd3+–) 12.de5 (12.de5 Bb4 13.Qd4+–) 1–0. Domingo,Jordi (1970) – Kehayov,Yulian, FICGS, 2010.

2.bc5 d6

3.Ba3 e5 4.cd6 Qb6 (4...Bd6 5.e3+=) 5.d7 Bd7 6.Bf8 Kf8 7.e4 h5 (8.Nc3 Nf6+/–) +/–. RX7 MASTER – BLACKBEARD, ChessWorld.net, 2004.

3.cd6 ed6 4.Nf3 Nf6 5.Nc3 Be7 6.g3 (6.Bb2 Be6+–) 6...0–0 7.Bg2 Nc6 8.0–0 a6 (8...d5 9.Bb2+=) 9.Rb1 (9.Bb2+=) 9...Be6 (9...d5 10.e3+=) 10.Bb2 (10.Rb7!? d5 11.e3+–) 10...Rb8 (10...b5 11.Ng5 Rc8 12.e4+=) 11.Ng5 Qd7 (11...d5 12.Re1+=) 12.Ne6 (12.d4 Bc4+–) 12...fe6+= 13.Ne4 (13.a3 d5+=) 13...Ne4 14.Be4 e5 (better 14...d5!? 15.Bg2 b5+=) 15.c4+– Bf6 16.Qc2 Nd4 (better 16...h6+–) 17.Bd4 ed4 18.Bh7 Kf7 (18...Kh8 19.Be4+–) 19.Bf5 (19.Bg6 Kg8+–) 19...Qe7 (19...Qc7 20.Qe4 Rh8 21.e3+–) 20.Qd3 (20.Be4 Ke8+–) 20...Ke8 (20...Kg8 21.Rb6+–) 21.Qf3 (21.Rb6!? Qc7 22.Rfb1 d5+–) 21...Kd8 (21...Qf7 22.Be4 Qc4 23.Bb7+–) 22.Qd5 Qe5 23.Be4 (23.Bd3 Qd5 24.cd5 b5+–) 23...Qd5 24.Bd5 Be5 (24...Re8 25.e4+–) 25.Bb7 Rf7 (25...Kc7 26.Be4+–) 26.Ba6 (better 26.Bd5!? Rb1 27.Rb1 Ra7+–) 26...Rb1 27.Rb1 Ra7 28.Bb5 (better 28.Bb7+–) 28...Kc7 (28...Ra2 29.f4 Bf6+–) 29.a4 Rb7 (29...Kb6 30.e4+–) 30.Kf1 (30.a5 Ra7 31.a6 Kb6+–) 30...d5 (30...Kb6 31.e4+–) 31.cd5 Kd6 (31...g5 32.e4+–) 32.e4 de3 (32...g5 33.Kg2+–) 33.de3 Bf6 (33...Re7 34.e4+–) 34.e4 Ke7 (34...Re7 35.f3+–) 35.f4 Bd4 (35...Bc3 36.e5+–) 36.e5 Bc5 37.d6 (37.a5 Ra7 38.a6 Kd8+–) 37...Bd6 38.ed6 Kd6 39.Rc1 (39.a5 Rc7+–) 39...Ke7 (39...Rb6 40.h3+–) 40.Rc6 Kf7 (40...Ra7 41.h3+–) 41.Kf2 Re7 (41...Ra7 42.Ke3+–) 42.Kf3 (better 42.a5 Ra7 43.a6+–) 42...Re6 (42...Ra7 43.h3+–) 43.Kg4 (better 43.Bc4 Ke8 44.Re6 Kf7+–) 43...Rc6 (43...Re7+–) 44.Bc6 Ke6 45.a5 Kd6 46.Bg2 (better 46.a6 Kc6 47.Kh5 Kb6+–) 46...Kc7 47.a6 Kb6 48.Bb7 Ka7 If Black now only could play Kh5... 49.Kg5 Kb6 50.Kg6 Kc7 51.Kg7 Kd6 White now must not overlook the idea h4 52.h4 Kc7 Plans a7 53.h5 Kb6 54.h6 Kc7 55.h7 Kb6 56.h8Q Kc5 57.Qd8 Kc4 (57...Kb5 58.a7 Kb4 59.a8Q Kc3 60.Qa3 Kc4 61.Qd5) 58.a7 Kb3 (58...Kb4 59.a8Q Kc3 60.Qa3 Kc4 61.Qd5) 59.a8Q Kb2 (59...Kb4 60.Qd4 Kb5 61.Bc6) 60.Qd4 (60.Qd2 Kb3 61.Bd5) 60...Kc1 (60...Kc2 61.Be4 Kb3 62.Qaa4) 61.Qaa1 Kc2 62.Qdd1 (62.Qab2) 1–0. FeegLood (2695) – Assaf3 (1820), lichess.org, 2016.

3.cd6 e6 4.e3 Nf6 5.c4 Bd6 6.Nf3 b6 7.d4 Bb7 8.Be2 0–0 9.0–0 Nbd7 10.Nc3 Rb8 (10...a6 11.Qb3+–) 11.a4 (11.Nb5!? Ne8 12.Na7 Bf3 13.Bf3 (13.gf3?! Bh2 14.Kh2 Qh4 15.Kg2 Qg5 16.Kh1 Qh5 17.Kg1 Qg5 18.Kh2 Qh4 19.Kg1 Qg5 20.Kh2 Qh4=) 13...Bh2 14.Kh2 Qc7 15.Kg1 Qa7 16.a4+–) 11...a6 12.Ba3 Qe7 13.Bd6 Qd6 14.Rb1 Rfc8 15.Qb3 Ne4 16.Ne4 Be4 17.Bd3 (17.Rb2 Qc6+–) 17...Nf6 (17...Bf3!? 18.gf3 Qe7+=) 18.Ne5 Bd3 19.Qd3 h6 (19...Nd7 20.Nd7 Qd7 21.a5 ba5 22.Rb8 Rb8 23.Rb1 Rb1 24.Qb1+–) 20.h3 (20.a5 ba5 21.c5 Qc7+–) 20...g5 (20...Nd7 21.Nd7 Qd7 22.Rb4+–) 21.Rfc1 (21.a5 ba5 22.c5 Qc7+–) 21...Kg7 22.a5 ba5 The passed pawn on c4 will quickly become a dangerous weapon 23.c5 Qd5 24.Rb8 Rb8 25.Qa6 Rb2? (25...Ra8 26.Qb5+–) 26.Qa5 (better 26.c6 Qd6 27.Nc4 Qb8 28.Nb2 Qb2+–) 26...Ne4 27.Rf1 Nd2 28.Qc7?? (better 28.Re1+–) 28...Qe5?? (28...Rb7 29.Qc6 Qb3+–) 29.Qe5+– (29.Qe5 f6 30.Qc7 Kg6 31.Qc8+–) 1–0. BeepBeepImAJeep (2765) – TheShark180 (2725), lichess.org, 2020.

3.cd6 Nf6 4.e3 ed6 5.Nf3 Nc6 6.Be2 Be7 7.0–0 Bg4 8.d4 Bf3 9.Bf3 0–0 10.Nd2 d5 11.c3 Bd6 12.a4 (12.c4 Qc7+–) 12...Qc7+= 13.Ba3 (13.h3!?+=) 13...Bh2= 14.Kh1 Bd6 15.Bd6 Qd6 16.c4 Rfd8 17.cd5 Nd5 18.Ne4 (18.Qb3 Ndb4=) 18...Qd7 19.g3 Nf6 (better 19...b6=) 20.Nf6+– gf6 21.Kg2 Kh8 (21...Rac8!?+–) 22.Rh1+– Rg8 (22...f5 23.Rh5+–) 23.Qb1 Threatening mate... how? 23...Rg7 (23...f5 24.Rh5 Kg7 25.Qf5 Qf5 26.Rf5+–) 24.Rh3 (24.Be4 Qc7+–) 24...Ne7? (24...f5 25.d5 Ne5 26.Qb5+–) 25.Qc2 (better 25.Qb7!? Qb7 26.Bb7 Rb8+–) 25...Ng6 (25...Rc8 26.Qd3+–) 26.Rah1 Kg8 27.Be4 Re8 28.Bf5 Qd6 (28...Qd5 29.Kg1+–) 29.Bg6 fg6 30.Rh4?? (better 30.Rh7! Qc6 31.Qc6 bc6 32.R7h6+–) 30...Qd7 (30...Qd5 31.Kf1 Rd8 32.Qe4=) 31.Rb1 (31.Qc4 Kh8+=) 31...Ree7 32.Qc4 Kf8 33.Rh2 h5 34.Rhh1 f5 35.Rhc1 Ke8 (35...Rh7 36.Qc8 Kf7 37.Rb5+=) 36.Qc8 (36.Rb5 Qd6+–) 36...Qc8 37.Rc8 Kf7 38.Rbc1 Kf6 39.R1c5 Kg5 40.Kh3 Rh7 Black plans h4 41.Rf8 h4? (better 41...b6!? 42.Rc6 Rc7=) 42.g4+– (42.g4 Rhf7 43.f4 Kf6 44.Rf7 Rf7 45.Kh4+–) 1–0. BeepBeepImAJeep (2530) – helvetian (1660), lichess.org, 2018.

3.cd6 Qd6

4.Ba3 Qd4 5.c3 Qe4 6.d3 Qe5 7.d4 Qe4 8.e3 Nf6 9.Bd3 (better is 9.Nf3+/–) 9...Bg4?? (better is 9...Qg2 10.Qf3 Qf3 11.Nf3 b6+=) 10.Be4+– Bd1 11.Kd1 (better is 11.Bb7 Ba4 12.Ba8+–) 11...Ne4+/– 12.Nh3 g5 13.f3 Nf6 14.Bc5 (14.e4 Rg8+/–) 14...h5 (14...Na6!?+=) 15.Ng5+/– Rg8 16.f4 Na6 17.h4 (17.Ba3!?+/–) 17...Nc5+= (18.dc5 Rc8+=) +=. RX7 MASTER – Seanypop, ChessWorld.net, 2004.

4.Ba3 Qd4 5.Nf3 Qa1 6.e3 Nf6 7.Bc4 g6 8.c3 Bg7 9.Ne5 0–0 10.Qb3 Nc6 11.Bf7 Kh8 12.Nc6 bc6 13.0–0 Ba6 14.Bc4 Bc4 15.Qc4 Rab8 16.Qc6 Rb1 17.h3 Rf1 18.Kh2 Rh1 19.Kg3 Nh5 20.Kh4 Qf1 21.Be7 Qf2 22.Kg4 Qg3# 0–1. Nautiluschess – nucleikon, ICS blitz, 2001.

4.Bb2 a6 5.e3 Qd8 (5...Nf6 6.Nf3+/–) 6.Nf3 Nf6 7.d4 e6 8.c4 Be7 9.Nc3 Nbd7 10.Bd3 b6 11.0–0 Bb7 12.Be2 (12.e4 Rc8+/–) 12...0–0 13.Qc2 Rc8 14.Rac1 Bc6 15.Qb3 (15.e4 Bb7+/–) 15...Bf3 (15...Qc7 16.Ba3 Ba3 17.Qa3+/–) 16.Bf3 h6? (16...Qc7 17.Ba3 Ba3 18.Qa3+–) 17.Na4 (better is 17.Bb7!? Rc7 18.Ba6 Ra7+–) 17...Rb8 18.Nc3 Re8 19.Rfe1 Nf8 20.Ne4 Ne4 21.Be4 Nd7 22.Bf3 Nf6 23.Red1 Qd7 24.Qd3 Red8 25.Ba1 a5 26.a4 Bb4 27.Rb1 Ne8 28.Bc3 Bc3+/– 29.Qc3 Nc7? 30.Qd3 Na6 31.c5 bc5?? 32.Rb8 Nb8+= 33.d5 e5 34.e4 f6 35.Qc4+/– Qd6 36.Rb1 Rc8 37.Rb5 Na6 38.Ra5 Nb4 39.Rb5 Ra8 40.a5 (40.Qc5?! Ra4 41.g3 Qc5 42.Rc5 Ra1 43.Kg2 Nd3 44.Rc8 Kh7+–) 1–0. Fournier,Frederic – Guest, Partie amicale, 1m + 0s, 2008.

4.Nc3 e5 +/–.

4.Nc3 Nf6 5.Nf3 g6 (5...e5 6.e4+–) 6.g3 (6.e4 Nc6+–) 6...Bg7+= 7.Bg2 0–0 8.0–0 Nc6 9.a4 (9.Nb5 Qb4 10.a4 Rd8+=) 9...Bg4+= 10.Ba3 (better 10.Rb1 Qd7 11.Re1+=) 10...a6?? (better 10...Qd7+=) 11.Bd6+– ed6 12.h3 (12.Rb1 Rab8+–) 12...Be6 13.Rb1 b5 (13...Ra7 14.d4 d5 15.e3+–) 14.Ng5 (14.ab5 ab5 15.Ng5 d5 16.Nb5 Rfc8+–) 14...Bd7 (14...d5 15.ab5 ab5 16.Nb5+–) 15.ab5 ab5 16.Nb5 Rab8 (16...d5 17.c3+–) 17.Nd6 Nd4 (17...h6 18.Rb8 Nb8 19.Ngf7 Rf7 20.Nf7 Kf7 21.e4+–) 18.Rb8 Rb8 19.Ngf7 (19.c3 Nb3+–) 19...Rb2 (19...Ba4 20.Qa1 Ne2 21.Kh1 Bc2 22.Qa7+–) 20.c3 Nb3 21.Nc4 Nd2 22.Nb2 Nf1 23.Bf1 (better 23.Ne5 Be8 24.Kf1 h6+–) 23...Kf7 24.e4! Be6 (24...Ne4 25.Qd3 Double attack (25.Qd7 Deflection; 25.Qd3 Decoy)) 25.Bc4 Bc4 26.Nc4 Ke6 27.Qb3 (better 27.Qd6!? Kf7+–) 27...Bf8 28.Ne3 Kd7 29.e5 Ne4 30.Qf7 Be7 31.Nd5 Nc5 32.Qe7 Kc6 33.Qd6 (33.c4 Nd7 34.Qd6 Kb7 35.Qd7 Ka6 36.Qc7 h6 37.Qb6) 33...Kb5 34.Nc7 (34.Qb6 Kc4 35.Ne3 Kd3 36.Qc5 Kd2 37.Qd4 Kc1 38.Qd1 Kb2 39.Qc2 Ka1 40.Nd1 h6 41.Qb2) 34...Kc4 35.Qd5 Kc3 36.Qc5 (36.Qc5 Kb3 37.Nb5 h6 38.Nd4 Ka4 39.Qb5 Ka3 40.Qb3) 1–0. FeegLood (2570) – Taminator (1780), lichess.org, 2015.

4.Nc3 Bg4 5.e3?? (better is 5.Rb1 b6 6.Nf3+/–) 5...Bd1–+ 6.Kd1 Qg6 (better is 6...Nf6–+) 7.Be2 Qh5 8.Bh5+– g6 9.Be2 Nc6 10.Nf3 f5 11.h3 0–0–0 12.Rb1 Bg7 13.Bb2 Bc3 14.Bc3 Nf6 15.Kc1 Rhf8 16.Bf6 ef6 17.d4 Nd4 18.Nd4 Rd4 19.ed4 Rd8 20.Bf3 Rd4 21.Rd1 Rd1 22.Kd1 (22.Kd1 b6 23.Rb4+–) 1–0. Fournier,Frederic (1880) – Invitado7374, Active blind, 2011.

4.e3 Be6 5.Nf3 Qa6?? (better is 5...Nc6+/–) 6.Ba6+– ba6 (6...Na6 7.Nc3+–) 7.0–0 (7.Ng5 Nc6 8.Ne6 fe6+–) 7...Nc6 8.d4 Rd8 (8...Nf6 9.Nbd2+–) 9.Nbd2 Nd4 (9...Bc8 10.c4+–) 10.ed4 Rd4 11.Nd4 Nf6 12.Ne6 fe6 13.Nf3 g6 14.Re1 Bg7 15.Rb1 0–0 16.Bb2 Rd8 17.Qc1 e5 18.Be5 Nh5 19.Bg7 Ng7 20.Qb2 Nf5 21.Red1 Nd4 22.Nd4 (22.Nd4 Kf7 23.Qb3 Ke8 24.Qg8 Kd7 25.Nf5 Kc6 26.Qc4) 1–0. Fournier,Frederic (1775) – Invitado7495, Active, 2011.

4.e3 Nf6 5.Nf3 +/–.

2.bc5 e5

3.Ba3 b6 4.Nf3 (4.cb6 Ba3 5.Na3 ab6+=) 4...Nc6 (4...e4 5.Ne5=) 5.c3 (better is 5.cb6!? Ba3 6.Na3 ab6 7.Nb5+=) 5...bc5= 6.e4 Nf6 7.d3 (7.Bc4 Rb8=) 7...Qa5 (7...d5 8.Qa4 Bd7 9.ed5 Nd5 10.Qe4=+) 8.Be2 Ba6 (8...Rb8 9.Bc1=+) 9.0–0 c4 (9...Rb8 10.Nfd2=) 10.Bf8+= Rf8 11.dc4 (11.d4=) 11...Ke7 (11...Ne4 12.Bd3 Nd6 13.Qe2=) 12.a4 (12.Qd3!?+=) 12...Ne4= 13.Qd3 f5 14.Rd1 Rad8 15.h3 Kf7 16.Ng5= Kg8 17.Ne4 fe4 18.Qe4 Qc5 19.Bd3 g6 20.Kh2?? Rf4 21.Qd5+/– Qd5 22.cd5 Ne7?? 23.Ba6+– Rf2 24.Na3 d6 25.Nb5 Rc2 26.Rac1 Rc1 27.Rc1 Nd5 28.Na7 Ra8 29.Bc4 Ra7 30.Bd5 Kg7 31.Ra1 Ra5 32.c4 h5 33.g4 h4 34.g5 Kf8 35.Kg2 e4 36.Kf2 Ke8 37.Ke3 Ra7 38.Be4 Rc7 39.Bg6 Kd8 40.Rd1 Rc4 41.Rd6 Ke7 42.Rd4 Rc3 43.Ke4 Rh3 44.Bf5 Rg3 45.g6 Kf6 46.Rd6 Ke7 47.Ke5 Re3 48.Kf4 Re2 49.Rd7 Kf6 50.Be4 h3 51.g7 Re4 52.Ke4 h2 53.g8Q h1Q 54.Kd4 Qd1 55.Kc5 ½–½. alanwsp (1830) – pjp (1745), net–chess.com, 2004.

3.Bb2 Qa5 4.Be5 Qc5 5.Nf3 f6 6.Bd4 Qd6 7.Nc3 Nc6 8.e3 Nd4 9.Nd4 Ne7 10.Bc4 a6 11.Qh5 Ng6? (11...g6 12.Qf3 Bg7+–) 12.Bd3 (12...f5 13.Bf5+–) 1–0. guest88 – guest2240, ICC, 2003.

3.Bb2 Qe7 4.e3 Nc6 5.Nf3 Qc5 6.Be2 Qb6 (better is 6...d6!?=) 7.Be5+/– Ne5 8.Ne5 Qb2 (better is 8...Nf6!?+/–) 9.Nc3+– f6 10.Rb1 Qa3 11.Nc4 Qe7 12.0–0 d6 13.h3 b6 14.Bf3 Bb7? (14...Rb8 15.Nb5 Qd7 16.Bg4+–) 15.Nd6! Qd6 16.Bb7 Rb8 17.Bf3 g6 18.Nb5 Qe5 (18...Qd7 19.c3+–) 19.Na7 Bd6 20.g3 Nh6 (20...Ne7+–) 21.Nc6 Qg5 (21...Qe6 22.Nb8 Bb8 23.c4+–) 22.Nb8 Nf5 (22...Bb8 23.Bc6 Kf7 24.Rb5+–) 23.Bc6 Ke7 24.Qg4 (better is 24.h4 Nh4 25.Rb5 Nf5+–) 24...Rb8 25.Qg5 fg5 26.Rb5 h5 27.a4 g4 28.hg4 hg4 29.Kg2 Kf6 30.Rfb1 Bc5 31.c3 Nd6 32.Rc5! bc5 33.Rb8 Nc4 34.d4 cd4 35.cd4 Na5 36.Bd7 Nc4 37.Bg4 1–0. Hal1958 – Oyetola, playchess.de, 2006.

3.Nc3 Bc5 4.Nf3 Nc6 5.e4 Nf6 6.Bc4 0–0 7.0–0 a6 8.Bb2 Ng4 (8...b5 9.Bd5 Qc7 10.Rb1=) 9.Qe2 d6 10.Nd5 b5 11.Bb3 Be6 12.h3 (12.a4 b4=) 12...Nf6 13.Rfe1 Rc8 14.a4 Bd5 15.ed5 Ne7 16.ab5+= ab5 17.d4 Bb4 18.de5 de5 (18...Nfd5!? 19.ed6 Qd6+=) 19.Red1+/– (19.Be5?! Be1 20.Bf6 Bb4=) 19...Ng6 20.Qb5 Rb8 21.Qc4 (better is 21.Qe2+/–) 21...Qd6? (better is 21...Bd6+/–) 22.Ra6+– Rb6 23.Rb6 Qb6 24.Ne5 Ne5 25.Be5 Nd7 (25...Bc5 26.d6 Bf2 27.Kh2+–) 26.Bc7 Qb7 27.d6 Bc5 28.Ba4 Nb6 29.Qb5 Ra8 30.Qc5 Na4 31.d7 (31...Qc8 32.dc8Q Rc8 33.Qb4 h6 34.Rd7 Re8 35.Qa4 Re1 36.Kh2 Re2 37.Qf4 Kh7 38.Qf5 g6 39.Qf7 Kh8 40.Qf8#) 1–0. jaskier (2085) – pietshaq (1635), internet, 2007.

3.c6 bc6 4.Bb2 Qc7 5.e3 Nf6 6.Nf3 d6 7.Be2 Be7 8.0–0 0–0 9.d3 h6 10.e4 Be6 11.c4 Nbd7 12.Nbd2 d5 13.cd5 cd5 14.ed5 Bd5 15.Nb3 (15.Rc1 Qb8 16.Rc2 Bd6=) 15...Rab8 16.Rc1 Qb7 (16...Qd6 17.Re1=+) 17.Ne5= Bb3 (17...Ne5!? 18.Be5 Bg2=) 18.ab3+= Qb3 19.Nd7 (19.Rc2 Bd6 20.d4 Nb6+=) 19...Nd7 20.Bd4 Nb6?? (better is 20...a5=) 21.Qb3+– (21...Rfd8 22.Be3+–) 1–0. ProdigalSon – GoodeKop, Live Game Caissa's Web, 2004.

3.d4 Qa5 4.Bd2 Qa4 5.de5 Bc5 6.Nf3 Qb5 7.e3 Qb2 8.Nc3 Nc6?? (better is 8...Qb6+–) 9.Rb1 Qa3 10.Nb5 Qa2 11.Nc7 Kd8 12.Na8 Nh6 13.Bb5 Nb4 (13...Qe6+–) 14.Bb4 Bb4 15.Rb4 Qa5 16.c3 a6 (16...Re8 17.0–0 Re7 18.Qd6+–) 17.Bd7! Bd7 18.Nb6 Qc5 19.Qd7 1–0. Tihomir Glowatzky (2020) – Seanypop (1705), ChessWorld.net, 2003.

3.d4 e4 4.Bf4 Nf6 5.e3 Nc6 6.Nc3 a6 7.Nge2 d5 8.Na4 Qa5 9.c3 Bg4 10.Nb6 Rd8 11.Qb3 Be7 12.Bc7 0–0? (12...Be2 13.Be2 Rc8 14.Nc8 Qc7+–) 13.Nd5! (13.Bd8?! Rd8 14.Rb1 Be2 15.Be2 Nb8+–) 13...Qb5 (13...Rd5 14.Ba5) 14.Qb5 ab5 15.Nf6 Bf6 16.Bd8 Rd8 17.Ng3 Re8 18.Bb5 g6 19.0–0 h5 20.d5 h4 21.dc6 hg3 22.cb7 gh2 23.Kh2 Rb8 24.c6 Kg7 25.a4 Bh4 (25...Bc3 26.Rac1 Be5 27.Kg1+–) 26.a5 Rh8 27.Kg1 Bf6 28.a6 Be5 29.f4! Bf6 (29...Bf4 30.Rf4) 30.a7 Bh4 31.a8Q Rh7 32.b8Q Bg3 33.Qg8 (33...Kf6 34.Qad8 Ke6 35.Bc4 Kf5 36.Qg5) 1–0. Tihomir Glowatzky (2020) – ricar67 (1705), ChessWorld.net, 2003.

3.e3 a5 4.c3 (4.d4 d6+/–) 4...Qc7 (4...Bc5 5.d4 ed4 6.ed4+=) 5.d4+/– ed4 (5...d6 6.cd6 Bd6 7.de5 Be5 8.Nf3+/–) 6.ed4 Be7 (6...d6 7.Bb5 Bd7 8.Qe2 Kd8 9.Bf4+/–) 7.Qe2 (7.Qg4!? g6 8.Bf4+–) 7...Nf6+/– 8.Nf3 0–0 9.g3 (9.Na3!?+/–) 9...d6 (9...Re8 10.Bf4 d6 11.cd6 Bd6 12.Be3=) 10.cd6 Bd6 11.Bg2 Bg4 (11...Re8 12.Be3=) 12.0–0+= Nc6 13.Be3 Rad8 14.Nbd2 Rfe8 15.Qd1 Ne7 16.Re1 Nf5 17.Qc1 Re7 18.a3 Rde8 19.h3 Bf3+= 20.Nf3 Ne3 21.fe3? Re3?? 22.Re3+– Re3 23.Qe3 Nd5 24.Qd2 Nf6 25.Kh2 h6 26.Re1 a4?? 27.Qc1 h5?? 28.Ne5 g6 29.Rf1 Kg7 30.Nf3 Bg3 31.Kh1 h4 32.Nd2 Nh5 33.Ne4 Bh2 34.Qe1 Ng3 35.Ng3 Bg3 36.Qe4 b5 37.Qa8 f6 38.Qb7 Qb7 39.Bb7 Kf7 40.Bc6 Ke7 41.Bb5 Kd6 42.Ba4 (42.Ba4 Ke7 43.c4+–) 1–0. Fournier,Frederic (1895) – ElKteDije (2125), Active, 2009.

3.e4 a6 4.Ba3 Nc6 5.c3 Nf6 6.Bd3 (6.Qa4 d5 7.cd6 Rb8=) 6...d6 7.cd6 Bd6 8.Bc2 0–0 9.Ne2 Be6 (9...Ba3 10.Na3 Be6 11.f4=) 10.0–0 (10.Bd6 Qd6 11.f4 Rfd8=) 10...b5 11.Bd6 Qd6 12.d4 Rad8 (better is 12...Bc4!? 13.d5 Na5+=) 13.d5+/– Ne7? (better is 13...Qc5!?+/–) 14.de6+– Qe6 15.Qc1 Ng6 16.Nd2 Nh4 17.Ng3 Qg4 18.Bd1 (18.a4 Rd6+–) 18...Qg6 (18...Qg5 19.Nf3 Qc1 20.Rc1 Nf3 21.Bf3+–) 19.Nf3 Nf3 20.Bf3 h6 (20...Rfe8 21.a4+–) 21.Nf5 Rd7 (21...Qg5 22.c4+–) 22.Qa3 Re8 (22...Rfd8 23.Qa6 Ne4 24.Qg6 fg6 25.Nh6 gh6 26.Be4+–) 23.Qa6 Rb8 24.Rfd1 Rdb7 25.Qd6 Rc8 26.Ne7 Re7 27.Qe7 Kh7 (27...Rc3 28.Be2 Ne4 29.Bd3+–) 28.Qe5 h5 (28...Rc6 29.Rd6 Rc4 30.Qb5 Rc3 31.Be2 Qe4 32.Bd3 Rd3 33.Qd3+–) 29.h4 Ng8 30.Bh5 Qh6 (30...Qf6 31.Qf6 Nf6 32.Bf7 Ne4 33.Rd5+–) 31.Bf7 (better is 31.Qf5 g6 32.Qc8 gh5 33.Qf5 Qg6 34.Qg6 Kg6+–) 31...Nf6 (31...Rf8 32.Rd6 Qh4+–) 32.Qf5 Kh8 33.Qc8 Kh7 34.Rd8 1–0. bobby fissure – angel027, ChessWorld.net, 2015. (=1.e4 c5 2.b4 e5 3.bc5 a6)

3.Nf3 Bc5 4.e3 Nf6 (better 4...e4!? 5.d4 Be7=) 5.Ne5+– Nc6 6.Nd3 Bb6 7.Nc3 d5 8.Rb1 0–0 9.Ne2 Bg4 10.Bb2 Ne4 11.f3 (better 11.h3 Bh5 12.g4+=) 11...Qh4?? (better 11...Bf3 12.gf3 Qh4 13.Ng3 Ng3–/+) 12.g3+– Bf3 (12...Ng3 13.Ng3 Be6+–) 13.gh4 Bh1 14.Ng3 Bd8 (14...Ng3 15.hg3 d4+–) 15.Nh1 Bh4 16.Ng3! Ne5 (16...Ng3 17.Qg4 Double attack (17.Qg4 Decoy); 16...Bg3 17.hg3 Combination) 17.Be5 f6 18.Bf4 (18.Qh5 fe5 19.Qh4 Nd6+–) 18...g5 19.Qg4 (better 19.Rb7 gf4 20.Nf4+–) 19...Kh8 (19...f5 20.Qh5 Nf6+–) 20.Rb7 f5 21.Qh5 Nf6 22.Qh6 Rab8 (22...Bg3 23.hg3 Nd7 24.Be5 Rf6 25.Bf6 Nf6 26.Qg7) 23.Qg7 1–0. FeegLood (2705) – king_Masinissa (2185), lichess.org, 2017.

3.Ba3 Qa5

4.Bb2 Bc5 5.Bc3 Qc7 =.

4.c3 Bc5 5.Bc5 Qc5 =.

4.e3 Bc5 5.Bc5 Qc5 6.d4 ed4 7.ed4 Qa5 8.Qd2 Qd2 9.Nd2 Nf6 10.Nc4 d5 11.Nd6 Ke7 12.Nc8 Rc8 13.Bd3 Nc6 14.c3 Na5 15.Ne2 Rc7 16.0–0 Re8 17.Bb5 Rec8 18.f3 a6 19.Bd3 Re8 20.Kf2 Kd8 21.g4 h6 22.Rfe1 Nc4 23.h4 g5 24.hg5 hg5 25.Reb1 ½–½. Rosner – Riepe, 1999.

4.e3 Nc6 5.Nf3 Nf6 =.

4.e3 Nf6 5.c3 Bc5 6.Bc5 Qc5 7.d4 Qa5 (7...ed4 8.cd4 Qb4 9.Nd2+=) 8.de5+= Qe5 9.Nf3 Qe7 (9...Qc7 10.Bb5=) 10.Nd4 (10.Bc4 d6+=) 10...0–0= 11.Nf5 Qc5 (11...Qe5 12.Nd6=) 12.Nd6+= Nc6 13.Be2 Ne8 14.Nc8 Rc8 15.Qd7 Rc7 (15...Nd6 16.0–0=) 16.Qd3 (16.Qh3 Nf6 17.0–0 Rd8+=) 16...Nf6= 17.Qc2 (17.0–0 Rd8 18.Qb5 Qb5 19.Bb5 Ne5=) 17...Rd8 18.a3 Rcd7 19.Ra2 Ne5 20.0–0 Qc6 21.a4 (21.Rd1 Rd1 22.Bd1 Ne4=) 21...Qe6 (21...Qc7 22.Qf5=) 22.Ra1 (22.a5 Nc6=) 22...Neg4 23.a5 (23.h3 Ne5=) 23...Qe5 24.g3 Qh5 25.h4 Qc5 26.Ra4 Ne5 27.a6 ba6 28.Ra6 h6 (28...Nd5 29.Rc1=) 29.Ra4 (29.Qf5 Qc7=) 29...Qc7 (29...Qc6 30.Rd1 Rd1 31.Bd1+=) 30.Rd1+= Rd1 31.Bd1 Nc4 (31...Nd5 32.Be2+=) 32.Bf3 Nd7 33.Qe4 Ndb6 34.Ra6 Ne5 35.Be2 Nbd7 36.Qa4 Rb8 37.Qc2 Nc5 38.Ra1 a5 39.Na3 Qc6 40.Nc4+/– Nc4 41.Bc4 Nd7 42.Bd3 Qc7 43.Bh7 Kh8 44.Be4 Nf6 45.Bg2 Rb5 46.Ra3 Kg8 47.Rb3 Rb3 48.Qb3 Qa7 49.Bf3 Nd7 50.Bd5 Nf6 51.Bc6 Qc5 52.Bf3 g5 53.hg5 hg5 54.Kf1 g4 55.Bg2 Kf8 56.Ke2 Ke7 57.Kd2 Nd7 58.Be4 Qd6 59.Kc1 Qa6 60.c4 Nc5 61.Qc2 Qf6 62.Kb1 Qb6 63.Ka2 Qb4 64.Bf5 Na4= 65.Qb3 Nc3 66.Kb2 Nd1 67.Kc2 Qb3 68.Kb3 Nf2 69.c5 ½–½. Baer,Werner – Poschmann,Hans, TT–04.16 TSC, 2002.

4.e3 Nf6 5.Nf3 Nc6 6.c3 Bc5 7.Bc5 Qc5 8.d4 ed4 (8...Qa5 9.de5 Ne5 10.Ne5 Qe5 11.Qd4=) 9.cd4+= Qa5 10.Qd2 Qh5 11.Be2 0–0 12.Nc3 d5 13.0–0 Bf5 14.Qb2 Rab8 15.a4 (15.Rac1=) 15...Na5 (better is 15...Rfc8!?=) 16.Qb5+/– b6 (16...Nc6 17.Nd5 Nd5 18.Qd5+/–) 17.Nd5 Nd5 18.Qd5 Rfd8 19.Qb5 Qg4 (19...Bg4 20.Rac1+–) 20.h3 Qe4 21.Ng5 Qd5 22.Qd5 Rd5 23.e4 Be4 24.Ne4 Re8 (24...Rd4 25.Nc3+–) 25.Ng3 (25.Rad1 Red8+–) 25...Rd4 26.Bb5 Red8 27.Nf5 Rd2 28.Rac1 (28.Rac1 g6 29.Ne7 Kg7 30.Rc7+–) 1–0. Buczinski,Henryk – Krieger,Thomas, internet, 2006.

4.e4 Nf6 5.Qf3 Bc5 6.Bc5 Qc5 7.Nc3 Nc6 8.Bb5 Nd4 9.Qd3 0–0 10.Ba4 Ng4 (10...d5!? 11.f3 Be6–/+) 11.Nh3+= b6 12.Bb3 Bb7 13.0–0 a5 14.a4 (14.Ng5!?=) 14...Ba6–/+ 15.Qg3 (15.Nb5!?–/+) 15...Bf1–+ 16.Qg4 Ba6 (16...Bc4 17.Bc4 Qc4 18.Qh5–+) 17.Qd7 (better is 17.Ng5!? h6 18.Bf7 Rf7 19.Nf7 Kf7 20.Qd7 Kg6 21.Re1–+) 17...Nb3 18.cb3 Rfd8 19.Qf5? (19.Qg4 Bc8 20.Qe2 Bh3 21.gh3 Rac8–+) 19...Bc8 (better is 19...Rd2!? 20.Nb5 Rad8 21.Qh5–+) 20.Qg5 Bh3 21.gh3 Rd6 22.Qe3 Qe3 23.de3 Rd3 24.Nb5 Rb3 25.Nc7 Rc8 26.Rd1 h6 27.Nd5 Rc4 28.Ne7 Kh7 29.Nf5 Rc7 30.Rd6 b5 31.Rd5 ba4 32.Ra5 Ra3 33.Re5 Ra1 34.Kg2 Ra7 35.Rc5 a3 36.Nd4 Rb1 37.Nc2 Rc1 38.Rc3 a2 0–1. Exler,Martin – Exler,Veronika, Vienna–ch, 2004.

4.e4 Nf6 5.Qf3 Nc6 6.c3 Bc5 7.Bc5 Qc5 8.Bd3 0–0 9.Ne2 d5 10.ed5 Bg4 11.Qg3 Qd5 12.h3 Be6 13.0–0 Rfd8 14.Bc2 (better is 14.Nc1!?–/+) 14...Qb5–+ 15.Re1? (better is 15.c4 Bc4 16.Na3–+) 15...Qb2 16.Na3 Qa3 17.d3 Rab8 (17...Ba2?! 18.Bb1–/+) 18.c4 Nb4 19.Bb3 (19.Rac1 e4 20.de4 Qg3 21.Ng3 Na2–+) 19...Nd3 20.Red1 Ne4 21.Qe3 Ndf2 22.Rf1 Rd3 23.Qc1 Qc5 24.Kh2 Bh3! 25.gh3 Rh3 26.Kg2 Qc8 27.Rg1 Nd3 28.Qa3 (28.Qh6 Qg4 29.Ng3 Qg3 30.Kf1 Qf2) 28...Qg4 29.Kf1 (29.Ng3 Qg3 30.Kf1 Qf2) 29…Rf3 0–1. ricar67 – Klaus Behrmann (1625), ChessWorld.net, 2003.

4.e4 Nf6 5.Nf3 Nc6 =.

4.Nf3 Nc6 5.c3 Bc5 =.

4.Nf3 Nc6 5.e3 Bc5 6.Bc5 Qc5 7.Be2 Nf6 8.0–0 0–0 9.d4 ed4 10.ed4 Qa5 11.c4 d5 12.cd5 Nd5 13.Re1 Be6 14.Nbd2 Nf4 15.Bc4 Rad8 16.Re4 Bc4 17.Nc4 Qf5 18.Qb1 Nd4 19.Nd4 Rd4 20.Rd4 Ne2 21.Kh1 Nd4 22.Qb7 Qf2 23.Qa7 Qf4 24.Qc5 Re8 25.Nd6 Rd8 26.Nc8 Ne6 27.Ne7 Kh8 28.Qc3 Qg5 29.Qb4 Nf4 30.Qb7 Qe5 31.Rf1 Qe2 32.Qf3 Qf3 33.gf3 Rd3 34.Nc6 Ra3 35.Nb4 g5 36.Rg1 h6 37.Ra1 Kg7 38.Nc2 Rf3 39.a4 Rf2 40.Ne3 Re2 41.Nf1 Re6 42.a5 Ra6 43.Ne3 Kf6 44.Kg1 Ke6 45.Nc2 Nd5 46.Nd4 Kd6 47.Nb3 f5–+ 48.Kf2 h5 49.Nd2 Nf6 50.Kf3 Nd5 51.Kf2 Ke5 52.Re1 Kf6 53.Ra1 g4 54.Nb3 f4 55.Nc5 Rc6 56.Rc1 Nb4 57.Rb1 Rc5 58.Rb4 Rc2 59.Kg1 f3 60.Ra4 Kg5 61.a6–/+ h4 62.a7=+ g3 63.hg3 hg3 (64.Ra5 Kg4 65.Ra4 Kh3 66.Rh4 Kh4 67.a8Q Rc1#) 0–1. AndyAndyO – Tihomir Glowatzky, ChessWorld.net, 2005.

3.Ba3 Na6

4.Bb2 e4 5.d4 ed3 =.

4.c3 Nc5 5.e3 d6 =.

4.c6 dc6 5.Bf8 Kf8 6.e3 Nc5 7.Nc3 Ne7 (7...Nf6 8.Nf3 e4 9.Nd4=) 8.Nf3 f6 (8...Ng6 9.d4 ed4 10.Nd4=) 9.d4+= ed4 10.Nd4 Qa5 11.Qd2 Be6 ½–½. Walker,John – Fournier,Frederic (2095), Northern Lights (thematic), 2004.

4.d4 ed4 5.Qd4 Nc5 6.Bc5 Qa5 7.c3 Qc5 8.Qc5 Bc5 (9.e3 d5=) =. RX7 MASTER – Frank Bendig, ChessWorld.net, 2004.

4.d4 ed4 5.Qd4 Nf6 =.

4.e3 Nc5 5.d4 Qa5 6.Qd2 Qd2 7.Nd2 ed4 8.ed4 Nd3 9.Bd3 Ba3 10.Ngf3 d5 11.0–0 Ne7 12.Rfe1 0–0 13.c4 b6 14.Rab1 Bd6 15.Rbc1 dc4 16.Be4 (16.Rc4?! Ba6=) 16...Rb8 17.Nc4 Bf4 18.Rcd1 White intends d5 18...Ba6 19.Nce5 Rfd8 20.d5 Rd6 21.Nc6 Nc6 ½–½. Gabor,Klaus – Fournier,Frederic (2095), Northern Lights (thematic), 2004.

4.e3 Nc5 5.d4 ed4 6.ed4 Qf6 =.

4.e3 Nc5 5.Qh5 Qc7 6.Nf3 d6 7.Bb5 Bd7 8.Bd7 Nd7 9.Ng5 g6 10.Qf3= Ngf6 11.Nc3 h6 12.Nge4 Ne4 13.Qe4 Be7 14.Nd5 Qc6 15.f3 Bd8 16.c4 Rc8= 17.0–0 f5 18.Qd3 Bh4 19.Rab1 b6 20.g3 Be7= 21.Rfc1 Nc5 22.Qc2 Bd8 23.g4 Qd7 24.d4+= Nb7 25.de5 de5 26.Rd1 Qc6 27.gf5 Rg8 28.f6 Qc4 29.Qb2 Kf7 30.Rbc1 Qa4 31.Nc3 Rc3 32.Qc3+– Re8 33.Qd3 Nc5 34.Bc5 bc5 35.Rc5 Bf6 36.Qd7 Qd7 37.Rd7 Re7 38.Re7 Ke7 39.Ra5 Kd6 40.Ra6 Ke7 41.Ra7 Ke6 42.Ra6 Kf7 43.a4 Be7 44.Kf2 Bb4 45.a5 Ke7 46.Ra7 Kd6 47.a6 Bc5 48.Rg7 Kc6 49.a7 Ba7 50.Ra7 Kd6 51.Ra6 Ke7 52.Rg6 Kf7 53.Rh6 Kg7 54.Re6 e4 55.fe4 Kf7 56.Rb6 Ke7 57.h4 Kd7 58.h5 Ke7 59.h6 Kf7 60.Rb7 Kg8 61.e5 Kh8 62.Rf7 Kg8 63.e6 Kh8 64.e7 Kg8 65.e8Q# 1–0. MChess – Leuschner, 2 min/move, 1992.

4.e3 Nc5 5.Qh5 d6 6.Bc5 Nf6 7.Qf3 dc5 (7...e4 8.Qf4 dc5 9.Bb5 Ke7 10.Qe5 Be6 11.Qc5 Qd6 12.Qd6 Kd6 13.f3=) 8.Bb5 Ke7 9.Nc3 a6 10.Bc4 Ke8 11.Rb1 The backward pawn on b7 becomes a target 11...Bd6 12.Rb7 Bb7 13.Qb7 Bc7 14.Nf3 Rb8 15.Qa6 Rb6 16.Qa4 Ke7 17.d3 Rb4 18.Qc6 (18.Qa7 Qb8 19.Qb8 Rhb8=) 18...Qd6+= 19.Qd6 Bd6 20.a3 Rb7 21.Kd2 h6 22.Ra1 Rd8 23.a4 Bc7 24.Kc1 Ba5 25.Nb5 e4 26.Ne5 Kf8 27.Kd1 Ra8 28.Ke2 ed3 29.cd3 Ra6 30.f4 g6 31.g4 Rab6 32.h4 White plans g5 32...Re7 33.g5 Nd7 34.Nf7 Rf7 35.Bf7 Kf7 36.gh6 Kg8 37.d4 cd4 38.Nd4 Kh7 39.Rg1 Bc3 40.Kd3 Bd4+/– 41.ed4 Kh6 42.a5 Rf6 43.Ke4 Re6 44.Kf3 Rd6 45.f5 gf5 46.Rg5 Rd4 47.Rf5 Rh4 48.Rd5 Ra4 ½–½. Joutsi,Jukka – Fournier,Frederic (2095), Northern Lights (thematic), 2004.

4.e4 Nc5 5.Nf3 =.

4.e4 Nc5 5.Qh5 d6 =.

3.Ba3 Nc6

4.c3 Qa5 5.Nf3 Bc5 =.

4.c3 Nf6 5.e3 b6 6.cb6 Ba3 7.Na3 ab6 8.Qb3 0–0 9.Nf3 d5 10.Bb5 Qd6 11.Bc6 Ra3 12.Qb4 Qb4 13.cb4 e4 14.Nd4 Bd7 15.b5 Rc8 16.Ke2 Be6 17.Rhc1 Rc7 18.f4 Bg4 19.Ke1 g6 20.h3 Be6 21.g4 Rca7 22.Rc2 h6 23.Ke2 Kg7 24.g5 hg5 25.fg5 Ng8 26.h4 Ne7 27.Kf2 Bg4 28.Kg3 Bc8 29.Kf4 f6 30.Be8 Bd7 31.Bd7 Rd7 32.gf6 Kf6 33.Rf1 Rda7 (33...Ra8!?+/–) 34.Kg4+– (34...Ke5 35.Nc6 Nc6 36.Rc6+–) 1–0. Woelfelschneider,Peter – Hjortstam,Kurt, email 4AMM–F, 1998.

4.c3 Nf6 5.e3 Be7 6.Bb5 0–0 7.Bc6 bc6 8.Nf3 e4 9.Nd4 a5 10.Nf5 Ba6 11.g4 Bd3 12.g5 Ne8 13.h4 g6 14.Nh6 Kg7 15.Bb2 f6 16.c4 Rb8 17.Qc1 Bc5 18.Ng4 Be7 19.Nc3 d5 20.gf6 Nf6 21.Nf6 Bf6 22.cd5 cd5 23.Na4 Qd7 24.Bf6 Rf6 25.Qc3 Qg4 26.Qd3 ed3 27.Nc3 Rbf8 28.f4 Qg2 29.Rf1 d4 30.ed4 (30.ed4 Re8 Mate attack) 30...Re8 31.Kd1 Qf1 0–1. Amun (1900) – adtsakal (1915), lichess.org, 2019.

4.Nc3 Qa5 5.Nd5 Nge7 =+.

4.e3 Qa5 5.Nf3 Bc5 =.

4.e3 Qa5 5.Nf3 Nf6 6.Be2 Bc5 7.Bc5 Qc5 8.0–0 e4 9.d4 Qf5 10.Nfd2 0–0 11.c4 d6 12.Nc3 Qg6 13.Kh1 Bf5 14.Rg1 h6 15.g4 Bd7 16.Qb1 Rfe8 (16...Ng4? 17.Bg4 Bg4 18.f3+–) 17.Nb5 Re7 18.Nd6 Ng4 19.Bg4 (< 19.N2e4 Re4 20.Rg2 Qd6 21.Qe4 Nf6=) 19...Bg4 20.c5 (20.N6e4?! Re4 21.Rg3 Re6=) 20...Qh5 21.Rg3 f5 22.Qb3 Kh8 23.Rag1 Rf8 24.Qb2 Rd8 25.a3 Be2 (25...Kh7 26.Qb3+/– (26.Nb7? Rb8–/+)) 26.R3g2 (26.d5 Ne5 27.Rg7 Bf3 28.Nf3 Qf3 29.R7g2 Kh7+=) 26...b6+/– 27.N6c4 (27.d5 Ne5 28.Rg7 Bf3 29.Nf3 Qf3 30.R7g2=+) 27...bc5? (better is 27...f4=) 28.d5+– (28...Bg4 29.dc6+–) 1–0. Coltharp,Cameron – Hjortstam,Kurt, email 4AMM–F, 1998.

4.e3 Nf6 5.Nc3 Qa5 6.Bb2 Bc5 7.Bb5 0–0 8.Nge2 d5 9.d4 ed4 10.ed4 Bd6 11.0–0 Bg4 12.f3 Bd7 13.Re1 Rfe8 14.Rb1 Qc7 15.h3 Re7 16.Ba4 a6 17.Bb3 Qa5 18.Qd2 Rae8 19.Kf1 Re3 20.Kf2 R3e7 21.Kf1 Na7 22.Rbd1 Qb4 23.g4 Nb5 24.g5 Nh5 25.Nd5 Qd2 26.Ne7 Be7 27.Rd2 Bg5 28.Rdd1 Bh3 29.Kg1 1–0. Pleschke – Hombergs, 1996.

4.e3 Nf6 5.d4 ed4 6.ed4 Be7? 7.Be2 0–0? 8.Nf3 Nd5 9.c4 Nf4 10.0–0 Ne2 11.Qe2+/– Bf6 12.Rd1 Re8 13.Qd2 Re4 14.Nc3+– Re8 15.d5 Na5 16.Qd3 d6 17.cd6 Bg4 18.Re1 Bf3 19.Qf3?? Nc4–/+ 20.Bc5 Nd2?? 21.Re8 Qe8 22.Qd3 Bc3 23.Qc3 Ne4 24.Qd4 Nc5 25.Qc5+/– Qe2 26.Rc1 Re8 27.g3 f5?? 28.d7+– Rd8 29.Qc7 Qe7 30.d6 Qd7+= 31.Qc4 Kf8 32.Rd1 g6 33.Qd4+/– Kg8 34.Qd5 Kg7 35.Qe5 Kh6?? 36.Qf4 g5 37.Qe5 Re8? 38.Qd5 b6 39.h4 gh4 (40.Qd4 Kg6 41.Qh4 Re4+=). revbodio – pdiddy, Live Game Caissa's Web, 2005.

4.e3 Nf6 5.d4 d5 6.de5 Ne5 7.Bb5 Bd7 8.Bd7 Ned7 9.Nf3 =.

4.e4 Qa5 5.Nc3?? Qa3–+ 6.Qh5 (6.Rb1 Rb8–+ (6...Bc5?! 7.Rb3 Bf2 8.Kf2 Qc5 9.Ke1–/+)) 6...Nf6 7.Qg4 (7.Qg5–+) 7...Ng4 8.h3 Nf6 (9.Bd3 Bc5–+) –+. RX7 MASTER – Darlanio, ChessWorld.net, 2004.

4.e4 Qa5 5.Bd3 Nf6 6.Nf3 Bc5 (7.Bc5 Qc5=) =. RX7 MASTER – marekt, ChessWorld.net, 2004.

4.e4 Qa5 5.Nf3 =.

4.e4 Nf6 5.Qf3 Qa5 =+.

4.Nf3 e4 5.Ng1 Qa5 =.

3.Ba3 Qc7

4.c3 Bc5 5.Bc5 Qc5 =.

4.Nc3 Bc5 5.Nd5 Qc6 =.

4.d4 ed4 5.Qd4 Na6 =.

4.e3 Bc5 5.Qg4 Bf8 =.

4.e4 Nf6 5.Nc3 Qa5 =.

3.Ba3 Nf6

4.c3 Nc6 5.e3 d5 +=.

4.d4 ed4 5.Qd4 Na6 =.

4.e3 Qa5 5.Nf3 Nc6 +=.

4.Nf3 e4 5.Nd4 Qc7 +=.

4.Nf3 e4 5.Nd4 d6 6.cd6 Bd6 7.e3 0–0 8.Be2 Qe7 9.Bd6 Qd6 10.Nc3 Nc6 11.Ncb5 Qe7 12.0–0 Nd4 13.Nd4 (worse is 13.ed4 Rd8+=) 13...Be6 14.Ne6 Qe6 15.d4 Rac8 16.c4 Rc7 17.Qa4 a6 18.Rab1 Rb8 19.c5 Rbc8 20.Bc4 Qe7 21.h3 1–0. Yannick – Mercator, playchess.de, 2004.

4.Nh3 Na6 5.Bb2 e4 =.

3.Bb2 Bc5??

4.e3 d6= 5.Nf3 Nf6 6.d4 ed4 7.Bd4 Bd4 8.Nd4 Nc6 9.Be2 0–0 10.0–0 a6 11.Nc6 bc6 12.c4 Re8 13.Nc3 Qe7 14.Qd2 Be6 15.Rfd1 Rad8 16.Rab1 d5 17.cd5 Nd5 18.Bf3 (worse 18.Ba6 Bg4 19.Nd5 Rd5–/+) 18...Nc3 19.Qc3 Ba2 20.Ra1 Rd1 21.Rd1 Bd5 22.Bd5 cd5 23.Rd5 Rd8 24.Rd8 (24.Qc4 Rd5 25.Qd5 Qe8=) 24...Qd8=+ 25.f3 Kf8 26.Kf2 Ke7 (26...Qd6 27.g3=) 27.Qe5 (27.Qg7 Qd2 28.Kg3 Qe3 29.Qh7 Qe5 30.Kh3 a5=) 27...Kd7 (27...Kf8 28.Qc5 Kg8 29.Qd4=) 28.Qd5 (28.Qg7 Qh4 29.Ke2 Qc4 30.Kd2 Qa2 31.Ke1 Qb1 32.Kf2 Qc2 33.Kg3 Qg6 34.Qg6 hg6+– (34...fg6? 35.Kf4+–)) 28...Ke7 29.Qd8 (better 29.Qg5!? Ke8 30.Qg7 Qd2 31.Kg3 Qe1 32.Kh3 Qe3 33.Qh7+=) 29...Kd8–/+ 30.e4 Ke7 (30...Kd7 31.Ke3–/+) 31.Ke3=+ Ke6 (31...Kd6 32.Kd4=+) 32.Kd4= 1–0. FeegLood (2445) – MeneerMandje (2345), lichess.org, 2017.

4.Be5+= Qb6 5.e3 f6 6.Bc3 d5 7.Qh5 g6 8.Qd5 Nc6 (8...Ne7 9.Qb3+–) 9.Bc4 Nh6? (9...Nd8 10.Qe4 Be6 11.Ne2+–) 10.Qe4 (better 10.Bf6 Rf8 11.Bg7 Rf5 12.Qe4 Be7+–) 10...Ne7 (better 10...Be7+–) 11.Bf6?? (better 11.Qh4 Nhg8 12.a4+–) 11...Qf6=+ 12.Nc3 (12.Bb5 Kf7 13.d4=+) 12...Bf5 (12...Nhf5!? 13.Bb5 Kf8=+) 13.Nd5?? (better 13.Qb7 Rc8 14.Qb3=) 13...Qa1–+ (13...Qa1 14.Ke2 Be4–+; 13...Be4?? 14.Nf6 Kd8 15.Ne4+–) 0–1. DEFFM – GuestYGLS, freechess.org, 2016.

4.Be5+= Qb6 5.e3 Nf6 6.Nf3 d5 7.c4 (7.Nc3!? Nbd7+/–) 7...Nbd7+/– 8.Bd4 0–0 9.Bc5 Nc5 10.d4 Nce4 11.Be2 Be6 12.cd5 Bd5 13.0–0 Rac8 14.Nbd2 Nd2 15.Qd2 Ne4 16.Qe1 Rc2 17.Bd3 Rb2 18.Be4 (18.Rb1 f5+/–) 18...Be4+= 19.Qd1 (19.Ne5 Rc8 20.Rc1 Rbc2 21.Rc2 Rc2+=) 19...Rc8 20.Ne5 Rcc2 21.Rc1 (better is 21.Qg4 f5 22.Qh5+/–) 21...f6?? (21...Ra2 22.Rc2 Rc2+=) 22.Rc2?? (better is 22.Nc4 Rc4 23.Rc4+–) 22...Rc2 (better is 22...Bc2!? 23.Nc4 Bd1 24.Nb6 Be2+=) 23.Nd3 Ra2+= 24.Nc5 Bd5 25.Qg4 Qc6 26.e4 Bf7 27.Rd1 a5 28.Qf4 h6 29.Qb8 Kh7 30.Qb7 Qa4?? 31.Na4+– (31.Na4 Kg6 32.e5+–) 1–0. mr5reasons1 (1660) – cheeky_knight (1740), gameknot.com, 2012.

4.Be5+= Bf2 5.Kf2 f6 6.Bg3 Ne7 7.c4 Qb6 8.e3 0–0 9.Nc3 Nf5 10.Nd5 Qc6 (10...Ng3 11.Nb6 (worse 11.Kg3 Qd6 12.Kf2 b6+–) 11...Nh1 12.Ke1 ab6 13.g3+–) 11.e4 (better 11.Bf4 Kh8 12.Nc7 g5+–) 11...Ng3 12.Ne7 (better 12.hg3!? Rf7+–) 12...Kh8 13.Nc6 (13.hg3?! Qc5 14.d4 Qe7=) 13...Nh1 14.Ke1 Nc6 15.Nf3 (better 15.g3!? f5 16.Bg2 Ng3 17.hg3 d6+–) 15...f5 (15...b6 16.g3 Ba6 17.Qa4+–) 16.e5 g6 (16...Re8 17.Be2 g5 18.Ng5 Ne5+–) 17.d4 Re8 (17...d6 18.ed6 b6 19.Be2+–) 18.d5 Ne5 19.Qd4 d6 20.Be2 b6 21.Kf1 (21.Kd2!? Ng3 22.hg3 Bd7+–) 21...Bd7 22.Re1 1–0. GuestMNZJ – GuestJBTT, freechess.org, 2017.

4.Be5+= Qf6?? 5.Bf6+– Nf6 6.e3 Nc6 (6...d5 7.d4 Bb4 8.c3+–) 7.Nf3 Ng4 (7...d5 8.d4 Bd6 9.c4+–) 8.d4 Nb4 (8...Bb6+–) 9.dc5 d6 10.a3 Bf5 11.ab4 dc5 12.bc5 (12.Bb5!? Ke7 13.Qd5 Kf6+–) 12...Rd8 13.Nd4 (better 13.Bb5 Bd7 14.Qd4 Bb5 15.Qg7 Ke7 16.Qg4 a6+–) 13...b6 14.Bb5 Kf8 15.cb6 (better 15.Ne6! Ke7 16.Nd8 Rd8 17.Ra7 Kf6 18.Qd8 Kg6+–) 15...ab6 16.0–0 (16.Ne6 Ke7 17.Nd8 Rd8 18.Ra7 Kf6 19.Qd8 Kg6 20.h4 Nf6 21.Qc7 Bd7 22.Bd3 Kh6 23.Qf4 Kh5 24.Qg5) 16...Nh2 17.Kh2 (17.Nf5 Nf3 18.gf3 f6 19.Ra7 Re8 20.Qd6 Re7 21.Qe7 Kg8 22.Qg7) 17...h5 18.Nd2 (18.Nf5 f6 19.Qd8 Kf7 20.Ra7 Kg6 21.Rg7 Kf5 22.Qd5) 18...g5 19.Nf5 Rd7 (19...Re8 20.Ne4! f6 21.Qd7 Re7 22.Qe7 Kg8 23.Nf6) 20.Bd3 (20.Ra8 Rd8 21.Rd8) 20...Rd5 (20...Rd8 21.Ne4 Rb8 22.Bb5 Rh6 23.Qd4 f6 24.Nh6 Kg7 25.Qf6 Kh7 26.Ng5) 21.Nc4 (21.Ra8 Rd8 22.Rd8) 21...Rf5 (21...Rd8 22.Be4 f6 23.Qd8 Kf7 24.Qe7 Kg8 25.Ra8) 22.Bf5 g4 (22...Rh6 23.Qd4 Rd6 24.Ra8 Rd8 25.Rd8 Ke7 26.Qd6) 23.Qd6 (23.Qd8 Kg7 24.Qg5 Kf8 25.Ra8) 23...Kg7 (23...Kg8 24.Qd8 Kg7 25.Qg5 Kf8 26.Ra8) 24.Ra7 (24.Qd4 f6 25.Ra7 Kh6 26.Qf6) 24...Rd8 (24...Rh6 25.Rf7! Kf7 26.Ne5 Kg8 27.Qh6 g3 28.fg3 b5 29.Be6) 25.Qd8 (25.Qg6 Kf8 26.Qf7) 25...Kh6 (25...g3 26.fg3 b5 27.Qd4 Kh6 28.Qf6) 26.Qf6 1–0. BeepBeepImAJeep (2655) – waldi29, lichess.org, 2016.

4.Be5+= Nf6 5.Bb2 Nc6 6.e3 0–0 7.Nf3 d5 8.c4 dc4 9.Bc4 The passed pawn on d2 will quickly become a dangerous weapon 9...Bg4 10.0–0 Re8 11.Be2 Rc8 12.Nc3 Nb4 13.d4 Bd6 14.Qb3 (14.Nb5 Bb8+=) 14...Ne4 (better 14...Be6 15.Qa4 a6+=) 15.h3?? (better 15.Ne4 Re4 16.Ba3+–) 15...Bf3 (15...Be6 16.d5 Nc3 17.de6 Ne2 18.Kh1–+) 16.Bf3=+ Nd2 17.Qa4 Nf3 18.gf3 Qg5 19.Kh1 Qh4 (19...Qf5 20.Kg2 Re6 21.Rfd1–+) 20.Kg2 Re6 Do you see the mate threat? 21.f4?? (better 21.Rfd1=+) 21...Rg6 22.Kf3 (22.Kh2 Bf4! 23.ef4 Qf4 24.Kh1 Qf3 25.Kh2 Qg2) 22...Qh3 (22...Qh5 23.Ke4 Re6) 23.Ke2–/+ Qh4 (better 23...Qh5 24.Kd2 Qf5–/+) 24.Ne4?? (better 24.Rac1=) 24...Qh5 (better 24...Rc2 25.Qc2 Nc2–+) 25.Kd2 Rc2 26.Qc2 Nc2 27.Kc2 (27.Rac1 Ne3 28.Ke3–+) 27...Qf5 28.Kd3 Qb5 29.Kc2 Bb4 30.Rfb1 (30.Rad1–+) 30...Rc6 (30...Qe2 31.Kb3 Qd3 32.Bc3 Bc3 33.Nc5 Rb6 34.Ka4 Qc4 35.Ka3 Bb4 36.Ka4 Bc5 37.Ka5 Ra6) 31.Kd1 Qf1 0–1. RichardSommer (2005) – Ian_JDS (1905), lichess.org, 2020.

4.Be5+= Nf6 5.e3 d6 +=.

4.Be5+= Qg5 5.Nf3 Qe7?? (better is 5...Qh6 6.Nc3 Nc6+/–) 6.Bg7+– f6 (6...d5 7.Nc3 Be6 8.Bh8+–) 7.Bh8 Nc6 (7...d5 8.Nc3 Be6 9.e3+–) 8.e3 (8.Nc3!? Qe6 9.e3 Nge7+–) 8...d5 9.Be2 (better is 9.d4 Bb4 10.c3 Ba5+–) 9...Nh6 10.Nc3 (better is 10.c4 dc4 11.Nc3+–) 10...Bg4 (10...Be6 11.e4 0–0–0 12.ed5 Bd5 13.Nd5 Rd5 14.c3+–) 11.0–0 (better is 11.Nd5 Qd6 12.Nf6 Kd8 13.Ng5+–) 11...0–0–0 12.h3 (better is 12.Nd4 Be2 13.Nde2 Rh8 14.Nd5 Qf7+–) 12...Bf3 (12...Be6 13.e4 de4 14.Bf6 Qf6 15.Ne4 Qe7 16.Nc5 Qc5+–) 13.Bf3 Rh8 14.Nd5 Qe5 (14...Qe6 15.d4 Bd6+–) 15.d4 (15.d4 Qe6 16.dc5+–) 1–0. cmulligan (2085) – smoothoperator (2190), net–chess.com, 2014.

4.Be5+= Qg5 5.Nf3 Qf5?? 6.Bg7+– f6 (6...Nc6 7.Bh8 d5 8.e3+–) 7.Bh8 Nc6 8.e3 d5 9.Be2 Bd7 10.Nc3 0–0–0 11.0–0 Nge7 12.Bf6! Qf6 13.d4 Bd6 14.g3 Rg8 15.Kg2 h5 16.Nh4! Qh4 17.Rh1?? Qh3 18.Kg1+= h4 19.Bf1 Qf5 20.Bg2 The isolani on d5 becomes a target 20...h3 21.Bf1 Rf8 22.Qd2 Nb4 Attacks the backward pawn on c2 23.Rc1 a6 24.Bd3?? Qf7 25.a3?? Bb5 26.Nb5+– Nd3 27.Nd6 Kb8 28.Nf7 Nf2 29.Qf2 1–0. Fournier,Frederic (1785) – grangerardo, Active, 2006.

4.Be5+= Qg5 5.Nf3 Qg6 +/–.

4.Be5+= Qg5 5.Nf3 Qh6 6.Nc3 Nc6 +/–.

4.Be5+= Qh4 5.d4 f6? 6.Nf3 Qe4 7.Bb8 Rb8 8.dc5 Qb4 9.Nbd2 Qc5 10.e3 Ne7 (time, 1–0). rekt – aniki, Internet, 2001.

4.Be5 f6

5.Bb2?? Qb6–+ 6.e3 Qb2 7.Nc3 Bb4 8.Nge2 Bc3 9.Nc3 Nc6 10.Be2 Nge7 11.0–0 0–0 12.Rb1 Qa3 13.Nb5 Qc5 14.Nc7 Rb8–+ 15.e4 Ne5?? 16.Nd5?? Nd5–+ 17.ed5 Qd5 18.Bf3 Qe6 19.d3 Nf3 20.Qf3 d5 21.Rfe1 Qc6 22.Rec1 Bd7 23.c4 dc4 24.Qc6 Bc6 25.Rc4 a6 26.f3 Rbd8 27.Kf2 Rd3 28.Ke2 Rfd8 29.Kf2 Rd2 30.Kg3 Ra2 31.Kh3 Rdd2 32.Rg4 Bd7 33.Rb7 Bg4 34.fg4 Rg2 35.Rd7 Rh2 36.Kg3 Rag2 37.Kf4 Rf2 38.Ke4 Re2 39.Kf4 Rhf2 40.Kg3 g6 41.Rd8 Kg7 42.Rd6 Kh6 43.Ra6 Rg2 44.Kf3 Kg5 45.Ra5 f5 (46.gf5 gf5–+; 45...Kh4 46.Rh5 gh5 47.gh5 Rgf2#) 0–1. Onkel_Luis – Hataznvme, ICC, 2003.

5.Bb2 Qb6 6.e3 Qb2 7.Nc3 Qb6 8.Na4 Qd6 9.Qh5 g6 10.Qc5 Qc5 11.Nc5 Ne7 12.Ne4 Kf7 13.Nd6+– Ke6 14.Nb5 Na6 15.Nf3 d5 16.Nfd4 Kd7 17.Be2 Nc6 18.Nb3 Nab4 19.0–0 Nc2 20.Rac1 Na3? (20...N2b4 21.Nc3 Ne7+/–) 1–0. guest3576 – guest3018, ICC, 2006.

5.Bb2?? Qb6–+ 6.e3 Qb2 7.Nc3 d6!? –+.

5.Bc3 Nh6 6.d4 Bb6 7.e4 Qe7 8.Bd3 Nc6 9.Ne2 d6 10.0–0 0–0 11.Nd2 f5 12.Bc4 Kh8 13.ef5 Bf5 14.h3 Qg5 15.Nf3 Qe7 16.Ng3 Qd7 17.Nf5 Nf5 18.d5 Nce7 19.Qd3 Ng6 20.Bb5 Qc7 21.Ng5 Nf4 22.Ne6 Nd3 23.Nc7 Bc7 24.Bd3 Bb6 25.Rab1 Ng3 26.Rb6 Nf1 27.Rb7 Rac8 28.Bg7 Kg8 29.Bf8 Kf8 30.Kf1 1–0. marus – SOK, internet live, 2001.

5.Bf4 +/–.

5.Bg3 d6 6.d4 Bb4 (6...Bb6 7.e4+/–) 7.c3+– Ba5 8.Qa4 (8.e4 Nc6 9.Nf3 d5+/–) 8...Kf7 (8...Bd7 9.Qb3+–) 9.Bd6 Bd7 10.Qb3 Be6 11.Qb7 Nd7 12.e4 Ne7 13.d5 Bg4 14.f3 Bh5 15.Nh3 Re8 16.Bb5 Qb6 17.Qd7 Qe3 18.Kd1 Qe4 19.Re1 Qd5 20.Nd2 Kg8 21.Bc4 Qc4 22.Nc4 Bc3 23.Re7 Ba1 24.Rg7 Kh8 25.Rh7 (25...Kg8 26.Qg7#) 1–0. marekt – firstknight, ChessWorld.net, 2004.

5.Bg3 Ne7 6.e3 0–0 7.Nf3 Nf5 8.Bd3 d6 9.Nc3 Nc6 10.Bc4 Kh8 11.Rb1 Ne5 12.Be2 Be6 13.d4 Qa5+= 14.0–0 Nf3 15.Bf3 Ng3 16.hg3 Qc3 17.dc5 dc5 18.Rb7 Rad8 19.Qb1 a5 20.Re7 Rb8 21.Qa1 Qa1 22.Ra1 Bg8 23.Ra7 Rb2 24.Ra5 Rc2 25.a4 Rc8 26.Ra7 Rb2 27.Rd1 c4 28.Bg4 Rcb8 29.Rdd7 c3 30.Rac7 Rb1 31.Kh2 Ra1 32.Rc3?? Rbb1=+ 33.Rd1 Rd1 34.Bd1 Rd1 35.Rc8 Ra1 36.Ra8 h6 37.g4 Kh7 38.Kg3 Bd5 39.Ra5? Bb3–+ 40.Rb5 Ba4 41.Rb7 Ra2 42.Rc7 Bd1 43.Rc1 Be2 44.Rc7 Bd3 45.Rd7 Bg6 46.Rd4 Ra5 47.Rb4 Rd5 48.Rc4 Rd1 49.Rc3 Rh1 50.Rc7 Rg1 51.Rc4 Bf7 52.Rb4 Bd5 53.e4 Bf7 54.f3 Bg6 55.Rb5 Rc1 56.e5 fe5 57.Re5 Rc2 58.f4 Rc3 59.Kh4 Bf7 60.g5 hg5 61.Rg5 Be6 62.f5 Bd7 63.g4 Bc6 64.Rg6 Bg2 65.Kg5 Rg3?? 66.Kf4? Rf3–+ 67.Kg5 Rg3?? 68.Kf4 Rf3?? 69.Kg5 Rf1?? 70.Rd6 Bh3 71.Kh4 Bg2 72.Rd7?? Rf3 73.Kg5 Bh3 74.Kh4?? Bf1–+ 75.Rf7 Bc4 76.Rc7 Bg8 77.g5? Rf5 78.Kg4 Rf1 79.Rc8 Be6 80.Kh4 Bc8 (81.Kg3 Kg6–+) 0–1. Levin,Anatoly (2045) – Harper,Ryan (2150), Dos Hermanas Internet Section, 2003.

5.Bg3 h5 6.Nf3 Nc6 7.d4! Bb4?! (7...Qa5 8.c3 h4; 7...h4!? 8.Bf4 Bb6–/+ 9.h3 (9.d5)) 8.c3 Ba5 9.d5–/+ Nce7 10.e4 d6 11.Bb5 Bd7 12.Qa4 (12.Nd4!?) 12...Bc7 13.0–0 a6?! (13...g5 14.h4) 14.Bd7 Qd7 15.Qd4 Nh6 (15...g5 16.Ng5!? h4 17.Bf4 fg5 18.Qh8 gf4 19.Qh5 (and Qxh4)) 16.a4!? 0–0 17.Nbd2 Rac8 (17...f5 (idea Ng5–e6)) 18.Rfb1 Ba5?! (18...Rb8; 18...g5) 19.Nc4+– Rc4 (19...Bc7 20.Rb7) 20.Qc4 Rc8 21.Qe2 Bc3 22.Ra3 Ng4 23.h3 Ne5 24.Ne5 de5 25.Rab3 Rc7 26.Qh5 Bd2? 27.Qd1 Bh6 28.d6 1–0. Solare, Juan – Evers, L, ICS (Solare), 2001.

3.Bb2 Nc6

4.Ba3 Qa5 5.e3 Nf6 =.

4.Ba3 Nf6 5.e3 Qa5 6.c3 =.

4.Ba3 Nf6 5.e3 Ne4 6.Bc4 d5 (6...Nc5 7.Qf3 Ne6 8.Bf8 Rf8 9.Nc3=) 7.cd6+= Qf6 (7...Bd6 8.Qh5 0–0 9.Nf3+=) 8.Qf3+/– Qf3 9.Nf3 Bd6? (9...Bg4 10.d7 Bd7 11.Bf8 Kf8 12.d3+/–) 10.Bd6 (better is 10.Bd5 Ba3 11.Na3+– (11.Be4 Bb2 12.0–0 Ba1–/+)) 10...Nd6+/– 11.Bb3 (11.Bd5 Nb4 12.Bb3 e4+/–) 11...Bf5 (11...Bg4 12.Ng5+=) 12.0–0 (12.d3 Rc8+=) 12...e4 13.Nd4 Nd4 14.ed4 0–0–0 15.Nc3 Bg6 (15...Rhe8 16.Rfe1+=) 16.Rfe1 Nf5 17.d5 Nd6 18.a4 a6 (18...Rhe8 19.a5+=) 19.a5+/– f5 20.Na4 Bf7 21.c4 Kb8 22.Rab1 Rc8 23.c5 Nb5 24.Nb6 Rcd8 25.f3 Rhe8 26.fe4 fe4 27.Re3 Nd4 28.Ba4 Re5 29.c6 Red5 30.Nd5 Bd5 31.Rb7 Kc8 32.Rg7 Nf5 33.Rh7 Ne3 34.de3 Bc4 35.Bc2 Rf8 36.g3 Re8 37.Bd1 Re5 38.Bg4 Be6 39.Re7 (39...Bg4 40.Re5+–) 1–0. Woschkat,Karl_Heinz – McKinney,Ian Llewell, IECG Cat–A, 1995.

4.Ba3 Nf6 5.e3 g6 6.Nc3 Bg7 7.Nf3 0–0 8.Rb1 (8...e4 9.Nd4+/–) 1–0. guest1525 – guest1705, ICC, 2005.

4.c3 Bc5 5.d4 Qb6 6.dc5 Qb2 7.Nf3 Qa1 8.Qc2 d6 9.e4 Be6 10.c4 Nd4 (11.Nd4 Qd4 12.cd6 Qd6–+) 0–1. Ackermann,Robert (1950) – Schmidt,Georg (2235), Fuert Pyramiden Franken Cup, 1998.

4.Nc3 Bc5 5.Ne4 Be7 =+.

4.Nc3 Bc5 5.Nf3 d5 6.e3 Nge7 7.Bb5 a6 8.Bc6 Nc6 9.0–0 Bg4 10.h3 Bh5 11.Qe1 0–0 12.Qe2? (better is 12.Nh2!?–/+) 12...e4–+ 13.d4? (better is 13.g4 ef3 14.Qf3–+) 13...ef3 14.gf3 Qg5 15.Kh1 Qf6 16.Nd5 (16.Kg2–+) 16…Bf3 (17.Qf3 Qf3 18.Kg1 Bd6–+) 0–1. BLACKBEARD – Klaus Behrmann (1625), ChessWorld.net, 2003.

4.d4 Nd4 5.Bd4 ed4 6.Qd4 Nf6 7.e3 Qc7 8.Nf3 Bc5 9.Qe5 Qe5 10.Ne5 0–0 11.Bc4 d5 12.Bb3 d4 13.e4? (13.Nd3!? Bb6 14.ed4 Bd4 15.c3–/+) 13...Bb4 14.Ke2 Ne4 15.a3 Bd6 16.Nf3 Bg4 17.h3 Rfe8 18.hg4 (18.Kf1 Bf3 19.gf3–+) 18...Ng3 19.Kd3 Nh1 20.Nd4 (20.Bd5–+) 20...Nf2 21.Kc3 Be5 22.Nd2 Rac8 (23.Bc4 b5–+) 0–1. Neumann,Frank – Juergensen,Ralph, MV–Rheinland Pfalz, 1998.

4.e3 Qa5 5.Nc3 Qc5 6.Be2 Nf6 7.d3 (7.Nb5 Qb6 8.Rb1 a6=) 7...Be7 (7...d5 8.d4 Qa5 9.a3 ed4 10.ed4–/+) 8.Nf3= d6 9.0–0 0–0 10.e4 h6 11.Na4 Qa5 12.c4 a6 (12...Bg4 13.Nc3=) 13.Bc3 Qc7 14.Nb2 (14.Rb1 b5 15.cb5 ab5 16.Rb5 Be6=) 14...Be6 15.Rc1 Rac8 16.Qb3 b5 17.Qc2 b4 18.Bd2 a5 19.Qb3 Qb8 20.Qa4 Qc7 21.a3 Bd7 22.Qb3 Rb8 23.ab4= Nb4 24.Bb4 Rb4–/+ 25.Qc2 Qb8 26.Rb1? Rc8 27.Rfc1 Nh5 28.g3 f5 29.ef5 Bf5+= 30.Nd2 Nf6 31.Na4 Bh7 32.Nc3 Bf5 33.Nb5 Rb1 34.Rb1+= Qa8 Black prepares e4 35.Bf3 e4?? 36.Ne4 d5?? 37.Nf6+– Bf6 38.Bd5 Qd5!!–+ 39.cd5 Rc2 40.Nd6 Bd3 41.Rb8 Kh7 42.h4 Rc1 43.Kg2 Be5 44.Rb6 Bd6 45.Rd6 Be4 46.Kh3 h5 47.Kh2 Rh1 0–1. Fournier,Frederic (1685) – TRX2000 (1610), Active, 2006.

4.e3 b6 5.cb6+= Qb6 6.Ba3 Be7 7.c4 (7.Be7 Nge7 8.Nc3 d5+=) 7...Qa5 (7...Rb8 8.Be7 Nge7 9.Nc3+=) 8.Be7 Nge7 9.Nc3 0–0 (9...Rb8 10.Rb1+=) 10.Qa4 (10.Rb1 Ba6+=) 10...f5 (10...Qa4!? 11.Na4 d6+=) 11.Qa5+/– Na5 12.Nf3 e4 13.Nd4 Bb7 (13...Ba6 14.Ncb5+/–) 14.Nb3 (14.Rb1 Rab8+/–) 14...Nb3 15.ab3 Nc6 (15...Rfb8 16.b4+/–) 16.Be2 (16.Nd5 Kf7+–) 16...a6 (16...a5 17.Nb5+/–) 17.0–0 (17.Nd5 Ne5+/–) 17...Rab8 (17...Nb4 18.Rfd1+/–) 18.c5 (18.d3 Ba8 19.Ra3 Nb4 20.de4 fe4+/–) 18...Nb4 19.Bc4 White gets the initiative 19...Kh8 20.Rfd1 Bc6 21.d4 ed3 22.Na2 Nc2 23.Rac1 Na3 24.Ba6 Rb3 25.Bd3 g6 26.Nc3 Re8 27.Ne2 Rb4 28.Nd4+– Ba4 29.Re1 Nb5 30.Bb5 Bb5 31.Rb1 Rb1 32.Rb1 Ba4 33.Ra1 Bc6 34.Kf1 Re5 35.Rc1 Kg7 36.g3 Kf6 37.h4 Bd5 38.Nb5 Bf3 39.Nd6 Ke7 40.Ke1 Ke6 41.Nb5 Bc6 42.Nd4 Kd5 43.Ke2 Re4 44.h5 Re8 45.Kf3 Re4 46.Nc6 (46.Nc6 Kc6 47.Rd1 gh5 48.Rd6 Kc5 49.Rd7+–) 1–0. Milde,Lars (2205) – Michalek,Martin (1700), TT–08.31 ETC, 2004.

4.e3 f5 5.d4 e4 6.Bc4 d5 7.Bb3 Nf6 8.Ne2 Ng4 9.0–0 Qh4 (better is 9...Qc7!? 10.Ng3 Be6+/–) 10.h3+– f4? (better is 10...Nf6 11.Nf4 Na5+–) 11.Nf4 b6 (11...Nf6+–) 12.Bd5 Bb7 13.Be4 (better is 13.Qg4 Qg4 14.hg4 bc5 15.Be4 cd4 16.ed4 Rb8+–) 13...g6 (13...Nf6 14.Qf3 Rc8+–) 14.d5 (better is 14.Qg4 Qg4 15.hg4 Nd8+–) 14...Nb4 (14...Nce5 15.hg4 Ng4+–) 15.Bh8 0–0–0 16.g3 g5 17.gh4 gf4 18.Qg4 Kb8 19.Be5 Ka8 20.Bf4 (20...Bc5 21.Nc3+–; better is 20.c6 fe3 21.fe3 Bc5 22.cb7 Kb7 23.Rf7 Ka6 24.Qe2 b5+–) 1–0. valpa – dc, HCL–C2016 playchess.de, 2003.

4.e3 Nf6 5.d4 ed4 6.ed4 b6 7.d5 Qe7 8.Be2 Nb4 9.Nf3 Qc5 Now all is on d5 (9...Nbd5 10.0–0 Qc5 11.Re1=) 10.c4+= Be7 11.a3 (11.Bd4 Qc7+=) 11...Na6 12.0–0 0–0 13.Bd3 (13.Bd4 Qc7+=) 13...Bb7 (13...Re8 14.Re1 Bb7 15.Nbd2+=) 14.Nc3 Qc8 15.Nh4 g6 (15...Re8 16.Nf5 Nc5 17.Nb5+– (17.Ne7?! Re7 18.Na4 Nd3 19.Bf6 Re4 20.Qd3 Qc4 21.Qc4 Rc4+–)) 16.Re1+– Qd8 (better 16...Re8+–) 17.Nf5 (better 17.Nb5 Nd5 18.Ng6 fg6 19.Be4+–) 17...gf5=+ 18.Bf5 Nc5 (18...Re8 19.Ne4 Ne4 20.Re4+–) 19.Re3 (better 19.d6!? Re8 20.de7 Re7 21.Qd6 Re1 22.Re1+–) 19...Bd6 (19...Re8 20.Rg3 Kh8+–) 20.Ne4 Bh2? (20...Nce4 21.Re4 Bh2 22.Kh2 Re8+–) 21.Kh2+– Nce4 22.Re4 (22.Re4 Re8 23.Rh4+–) 1–0. michaelbuss (2790) – nitousche (1830), ChessWorld.net, 2011.

4.Nf3 Qa5 5.Ne5 Bc5? (better is 5...Ne5 6.Be5 Qc5+/–) 6.Nc4+– Qb5 (6...Qa4 7.Bg7 Qc4 8.Bh8 d5+–) 7.e3 (< 7.Bg7 Qc4 8.Bh8 d5+–) 7...Kf8 8.Nc3 Qa6 9.Qh5 Be7 10.Nd6!! (10...Qf1 11.Rf1 Bd6 12.Nd5+–) 1–0. marekt – ricar67, ChessWorld.net, 2003.

4.Nf3 d6 5.cd6 Bd6 6.e4 Nf6 7.d3 (better is 7.Nc3!?+=) 7...Qb6+= 8.Bc1 Bc5 9.d4 (better is 9.Qd2!? Ng4 10.Nc3 Bf2 11.Kd1–/+) 9...Nd4–+ (9...ed4?! 10.Bd3+=) 10.Bd3 Bg4 11.0–0 (11.Nc3 Rd8 12.Bd2 Nf3 13.gf3 Bf2 14.Ke2 Bc8–/+) 11...Nf3 12.Kh1?? (12.gf3 Bh3 13.Nc3–+) 12...Nh2! 13.f3 (13.Kh2 Bd1) 13…Nf1 (13...Nf1 14.Qf1 Bd7–+) 0–1. Gonzalez Lopez,V – Moran Fernandez,F, Asturias–ch Oviedo, 2003.

4.Nf3 f6 5.e3 Bc5 6.d4 ed4 7.ed4 Bb4 (7...Qb6!? 8.Bc3 Bb4+=) 8.c3+– Ba5 (8...Bd6 9.Bd3+–) 9.d5 Ne5 10.Ne5 (10.d6!? Kf8 11.Ne5 fe5 12.Nd2+–) 10...fe5+= 11.Qh5 (11.Qh5 Kf8 12.Ba3 d6 13.Qe5=). Domingo,Jordi (1970) – Tanda,Giovanni (2025), FICGS, 2010.

4.Nf3 Qf6 5.Nc3 Bc5 6.Ne4 Qe7 7.Nc5 Qc5 8.e3 Nf6 9.Rb1 d5 10.Ne5 Ne5 11.Be5 0–0 12.Bf6 gf6 13.Bd3 Kh8 14.Qh5 Rg8 15.Qh7# 1–0. Machete99 – guest1407, ICC, 2002.

4.f4? Bc5 5.Nf3 (5.fe5 Qb6 6.Qc1 Bf2 (6...Bg1?! 7.e3+=) 7.Kd1 Bg1–+; worse is 5.Be5 Ne5 6.d4 Qa5 7.c3 Nc4 8.dc5 Ne3–/+) 5...Qe7 (5...d6!?=) 6.fe5+= Nh6 (6...f6 7.ef6 Nf6 8.e3+=) 7.d4+/– Bb4 (7...Bb6 8.e4+/–) 8.c3 Ba5 9.e4 d6 (9...f6 10.Qa4 Ng4 11.h3+/–) 10.Bb5 (10.d5 Ne5 11.Qa4 Nd7 12.Qa5 Qe4 13.Be2 Nc5+–) 10...0–0 (10...Bd7 11.Bc1 de5 12.d5+/–) 11.0–0 (11.Qa4 Bc7 12.Bc6 bc6 13.Qc6 Rb8+–) 11...Bg4 (11...Bb6 12.Kh1+–) 12.Qd3 (12.Bc1 de5 13.Bc6 bc6+–) 12...de5 (12...Rfc8+–) 13.Ba3 Qc7 14.Bf8 Rf8 15.Bc6 (15.Nbd2 Rd8 16.Bc6 bc6+–) 15...bc6? (15...Bf3 16.Bd5 (worse is 16.gf3 Qc6 17.Kh1 f5+/–) 16...Bh5 17.h3+–) 16.Nbd2 (better is 16.Ne5!? Bb6 17.Kh1 c5+–) 16...Bb6 17.Kh1 c5 (better is 17...Rd8+–) 18.Ne5 cd4 19.cd4 Rd8 20.Ndf3 Qd6 (20...Bf3 21.Nf3 (21.Qf3?! Bd4 22.Nd3 Ba1 23.Ra1 Qc2+=; worse is 21.gf3 Bd4 22.Nf7 Qf7–/+) 21...Ng4 22.g3+–) 21.Nc4 (21.Nc4 Qe6 22.d5+–) 1–0. Fournier,Frederic (2215) – Robeson,Christian, Train France (FRA), 2001.

4.f4? ef4–/+ 5.Bg7?? (better is 5.Qc1–/+) 5…Bg7–+ (5...Bg7 6.d4 Qh4 7.g3 fg3–+) 0–1. Grehl – Knorr, corr SOK–92–92, 1992.

4.d4 ed4

5.ed4 Be7 6.Bd3 d5 += 7.Nf3 Nc6 8.0–0 Bg4 9.c3 Nf6 10.h3 Bh5 11.Qb3 Qc7 12.Ne5 0–0 13.f4 Bg6 14.f5 Ne5 15.de5 Bc5 16.Kh2 Nh5 17.Qd5 Rad8 18.Qe4 Rfe8 19.fg6 hg6 20.Rf7 Qf7 21.Bc4 Re6 22.Be6 Qe6 23.Nd2 Qb6 24.Nf3 Rd1 25.Be3 Be3 26.Qc4 Kh7 27.Rd1 Bf4 28.Qf4 Nf4 29.Ng5 Kh6 30.Nf7 Kh5 31.Rd4 g5 0–1. Katalymov – Kupreichik, Minsk 1971.

5.ed4 Qf6 6.Nf3 d5 7.c3 Bb6 8.Bd3 Bg4 9.Nbd2 Ne7 10.0–0 0–0 11.Re1 Nbc6 12.h3 Bh5 13.Qc2 Bg6 14.Ba3 Rfe8 15.Be7 Ne7 16.Ne5 Rac8 17.Bg6 hg6 18.Ndf3 Nf5 ½–½. Bures – Olej, corr 1963–64.

5.ed4 Qf6 6.Nf3 d5 7.Bg5 Qe6 8.Be2 Bd6 9.0–0 Ne7 10.Bb5 Nbc6 11.Re1 Qg4 12.c4 Be6 13.Nc3 0–0 14.cd5 Nd5 15.Ne4 Bb4 16.Re2 Nc3 17.Nc3 Bc3 18.h3 Qh5 19.Bc6 Ba1 20.Bb7 Rab8 21.Be7 Rfe8 22.Re5 Bf5 23.Bc6 Qg6 24.Nh4 Qc6 25.Nf5 Bc3 26.Qg4 Qg6 27.Bg5 h5 28.Qf4 Re5 29.de5 Rb1 30.Kh2 Qe6 0–1. Stepan – Olej, corr tt CSSR 101a 1963–64.

5.Bd4 d6 6.cd6 Qd6 (6...Nf6 7.e3=) 7.c3 Nf6 8.Bf6 (8.Nf3 Be7+=) 8...Qf6= 9.e4 Bc5 Threatening mate: Qxf2 10.f3 (better 10.Qf3!? Qg5 11.Nd2=) 10...0–0–/+ 11.Qc2 Qf4 (better 11...Rd8 12.Bc4 Qf4–/+) 12.g3?? (better 12.Qd2 Qc7 13.Ne2–/+) 12...Qe3–+ 13.Be2 (13.Kd1 Rd8 14.Nd2–+) 13...Qf2 14.Kd1 Rd8 (14...Qg2 15.Kc1 Qh1 16.Bf1–+) 15.Nd2 (15.Kc1 Qg2 16.Bf1 Qh1–+) 15...Be3 16.Bd3 Qg2 (16...Qg2 17.Rb1 Ne5–+) 0–1. marnzell (2040) – MARYMARY, ChessWorld.net, 2010.

5.Bd4 Nd4

6.Qd4 Be7 7.Qg7?? (7.Nd2 Qa5 8.c3= (8.Qg7?? Bf6 9.Qg4 d5–+)) 7...Bf6–+ 8.Qg3 Ba1 9.Nc3 Qa5 10.Kd2 (10.Qe5 Kd8 11.Kd2 f6–+) 10...Qc5 11.e4 (11.Qg7 Qd6 12.Kc1 Qf4 13.e3 Qf2 14.Qe5 Kf8–+) 11...Bc3 (better is 11...Qd4 12.Ke2 Bc3 13.Qe3–+) 12.Qc3 Qf2 13.Ne2 Nf6 14.Qe5 Kd8 15.Kd3 (15.Qf5 Qf5 16.ef5 Ne4 17.Kc1 d5–+) 15...Re8 16.Qa5 (16.Qg5 Re4 17.Kc3–+) 16...b6 17.Qb4 Ne4 18.Nd4 Ba6 19.Nb5 Bb5 20.c4 Nc5 21.Kc3 (21.Qc5 bc5 22.cb5 Re3 23.Kc4 Qf4 24.Kc5 Rc8 25.Kd5 Qe5) 21...Re3 22.Kd4 Qf4 0–1. pittol – agalstyan, gameknot.com, 2014.

6.Qd4 Qg5 7.e4 (7.e3 Bc5 8.Qd1 Qf6=) 7...Qc5 (7...Bc5!? 8.Qc3 Qf6 9.Qf6 Nf6=+) 8.Qc5 Bc5 9.Bc4 (9.Nc3 Nf6 10.Rb1 b6=) 9...d6 10.Nf3 Nf6 (11.Nbd2 a6=). Provaznik,Zdenek – Skaug,Thorbjoern, corr ICCF TT4–90, 1990.

6.Qd4 Qa5

7.c3 Qc5 8.Nf3 Nf6 9.e3 d5 10.Nbd2 Be6 11.Nb3 Qc7 12.Bb5 Bd7 13.Bd7 Qd7 14.Ne5 Qe6 (14...Qc7 15.Rd1=) 15.Qa4 Nd7 16.Qd7 Qd7 17.Nd7 Kd7 18.Rd1 Ba3 (18...Ke6!?+=) 19.Rd5+/– Ke7 20.0–0 Rhd8 21.Rfd1 b6 22.Rd8 Rd8 23.Rd8 Kd8 24.Nd4 a5 25.Kf1 Kd7 26.Ke2 g6 27.Kd3 Bc5 28.f4 Kd6 29.g4 f6 30.a4 h6 31.h4 h5 32.gh5 gh5 33.Nf5 Kc6 34.Ng3 b5 35.ab5 Kb5 36.Ne4 Be7 37.f5 a4 38.Nd2 a3 39.Nb3 a2= 40.Kc2 Ba3 41.e4 Kb6 42.Na1 Kc6 43.Kb3 Bc5 44.Ka2 Kd6 45.Nb3 Be3 46.Na5 Bf2 47.Nc4 Kc5 48.Kb3 Bh4 49.Ne3 Bg5 50.Nd1 h4 51.Nf2 Kd6 52.Kc4 Be3 53.Ng4 h3 54.Kb5 Bg1 55.c4 h2 56.c5 Kc7 (56...Kc7 57.Nh2 Bh2–+) 0–1. Loulou – Zirni, playchess.de, 2003.

7.c3 Nf6!

7.Nc3? Bc5 8.Qg7?! Bb4.

7.Nd2 Qc5 8.Qe4 Be7 9.Ngf3 Nf6 10.Qd4 d5 11.Qc5 Bc5 12.h3 Ne4 13.Ne4 de4 14.Nd2 e3 15.fe3 Be3 16.Nf3 (better is 16.Nc4!? Bc5 17.0–0–0–/+) 16...Bf5 17.c4 0–0–0 18.g4 Be4 19.Bg2 Rhe8 20.Kf1 Rd6 21.Nh4 Rc6 (21...Rf6 22.Bf3–+) 22.Be4 Re4 23.Nf5 Rcc4?? (better is 23...Bc5–+) 24.Nd6= Kb8 25.Ne4 Re4 26.Kg2 Bd4 27.Kf3 Re3 28.Kf4 Re2 29.Rhe1 Rf2 30.Kg3 Rf6 (< 30...Ba1 31.Kf2 Bf6 32.Re8 Kc7 33.Rf8+/–) 31.Re8 Kc7 32.Rc1 Kd7 33.Rb8?? (better is 33.Re4 Rd6 34.Rce1=) 33...Be5–+ 34.Kg2 Bb8 35.Rb1 Rb6 36.Rd1 (36.Rb6 ab6 37.Kf3 b5–+) 36...Bd6 (37.Rd2 Rc6–+) 0–1. revbodio1 – Laksman4, Live Game Caissa's Web, 2004.

4.e3 Bc5

5.Bb5 d6 6.Ne2 Nf6 7.0–0 0–0 8.f4 Ng4 9.h3 Be3 10.Kh1?? (better is 10.de3 Ne3 11.Qc1 Nf1 12.Kf1=+) 10...Nf2–+ 11.Rf2 Bf2 12.fe5 de5 13.Bc6 bc6 14.Be5 Bh3! 15.Nf4 (15.gh3 Qd5) 15...Bf5 (better is 15...Bc8 16.Nd3 Qh4 17.Bh2 Bg3–+) 16.d3 (16.Qf3 Qh4 17.Nh3 Bh3 18.gh3–+) 16...Qh4 17.Nh3 Bh3 (18.gh3 Rae8–+) 0–1. Guest6639 – Wall,Bill, Microsoft Gaming Zone, 2004.

5.Bb5 Nge7 6.Bc6 Nc6 7.a4 0–0 8.Ne2 d5 9.d4 ed4 10.Nd4 Nd4 11.Bd4 b6 12.0–0 Qg5 13.h3? Bh3 14.Qf3 Be6 15.Bc5 bc5 16.Nc3 a6 17.Qg3 Qf5 0–1. Suess – Humpfer, 1984.

5.Bb5 f6 6.f4 ef4 7.Qh5 g6 8.Qc5 fe3 9.Qe3 Qe7 10.Qe7 Ke7 11.Nf3 d5 12.0–0 Nh6 13.Bc6 bc6 14.Nd4 Bd7 15.Nb3 Rhf8 16.Nc5 Bf5 17.d3 Rab8 18.Ba3 Kf7 19.Na6 Ng4 20.Bf8 Rf8 21.Nd2 Ne3 22.Rfc1 Re8 23.Nf3 1–0. hal1958 – Zirni, playchess.de, 2002.

5.c3 Qb6 6.Qc2 d5 7.d4 Bd6 8.c4 dc4 9.Bc4 ed4 10.ed4 Nge7 11.d5 Qb4 12.Nd2 Ne5 13.Bc3 Qc5 14.Ne4 Qc7 15.Nd6 Qd6 16.Qb3 Nc4 17.Qc4 Qd5 18.Qd5 Nd5 19.Bg7 Rg8 20.Be5 Rg2 21.Bg3 Bd7 22.Kf1 Bc6 23.Rc1 Ne3 24.Ke2 Rg3 25.Rc6 Rg5 ½–½. Nemeskal – Olej, corr 1963–64.

5.c3 Nf6 6.d3 (6.d4 ed4 7.cd4 Bb4 8.Bc3 Qa5=) 6...0–0 (6...d5 7.d4 ed4 8.cd4 Bb4 9.Bc3+=) 7.d4+= ed4 8.cd4 Qa5 (8...Bb4 9.Bc3+=) 9.Bc3 (9.Nd2 Be7=) 9...Bb4+= 10.Bb4 Nb4 11.Nd2 d6 (11...Na2? 12.Qb3+–) 12.h3? (better is 12.a3 Nbd5 13.Bd3+=) 12...Bf5–+ (12...Na2 13.Bc4 Qg5 14.Ngf3 Qg2 15.Rh2+/–) 13.f3?? (better is 13.Rc1–+) 13...Nc2 14.Ke2 (14.Kf2 Na1 15.e4 Be6–+) 14...Qc3 15.Rc1 (15.Nc4 Qc4 16.Kf2–+) 15…Qe3 0–1. Karpoff,Kari (1930) – Milone,Marco (1945), Finland – Italy, 2008.

5.Nc3 Nf6=+ 6.Nge2 (6.Nf3 d5=+) 6...d5 7.g3 (7.d4 ed4 8.Nd4 Bd4 9.ed4 0–0=+) 7...Bg4 8.Bg2 d4 (8...0–0 9.0–0=+) 9.Ne4 (9.Na4 Be7 10.ed4 ed4–/+) 9...Ne4–/+ 10.Be4 0–0 (10...f5 11.Bg2=+) 11.0–0 (11.h3 Bh5=+) 11...Bh3 (11...f5 12.Bg2–/+) 12.Bg2 (12.ed4!? Bf1 13.dc5=+) 12...Bg2–/+ 13.Kg2 f5 (13...d3 14.Nc3–/+) 14.ed4=+ Nd4 15.Nd4 Bd4 16.Bd4 Qd4 17.Rb1 (17.Re1 Rac8–/+) 17...Qd5 (17...b6 18.f3–/+) 18.Qf3=+ Qa2 19.Rb7 Qc2 20.Qd5 Kh8 21.Qd7 (21.Rfb1 e4=+) 21...Rg8 22.Rc7 Qe4 (22...Rad8 23.Qd8 (< 23.Rc2 Rd7 24.Rc5 Re8–/+) 23...Qe4 24.f3 Qe2 25.Rf2 Qf2 26.Kf2 Rd8 27.Ra7=) 23.Kg1 (23.f3!? Qb4 24.Qf5 Qd2 25.Rf2=+) 23...a5 24.Rfc1 (24.f3 Qd4 25.Qd4 ed4–/+) 24...f4 (24...Rad8 25.Qe6–/+) 25.Qg4 (25.d3 Qe2–/+) 25...Qg6 (25...a4 26.Qh5–/+) 26.Qf3 (26.Qg6 hg6 27.gf4 ef4=+) 26...h6 (26...fg3 27.fg3 a4 28.Qe3–/+) 27.R7c5 (27.R1c6 Qb1 28.Rc1–/+) 27...Rge8 (27...fg3!? 28.fg3 e4–/+) 28.Re5=+ fg3 (28...Re5 29.Qa8) 29.Re8 Re8 30.hg3 Qe4 (30...Qd6 31.Qc3 a4 32.Ra1=+) 31.Qe4 ½–½. Schmidbauer,Josef (1635) – Schmid,Dominik, RLSO_Freyung–F'feldbr, 2003.

5.c4 d6 6.a3 Nf6 7.Qc2 0–0 8.Nf3 Bg4 9.Ng5 h6 10.h4 Re8 11.Ne4 Ne4 12.Qe4 Bh5 13.g4?? (better is 13.Nc3–/+) 13...Bg6–+ 14.Qg2 Qb6 15.Bc3 Na5 (better is 15...Nd4 16.ed4 ed4 17.Be2 Bb1–+ (17...dc3?! 18.Nc3 Qb2 19.Rd1–+)) 16.Ba5+= Qa5 17.Nc3 (17.h5 Bd4 18.hg6 (18.ed4? ed4 19.Be2 Be4–+) 18...Ba1 19.gf7 Kf7 20.Qb7 Kg8 21.Bd3=) 17...a6 (better is 17...Bb4!? 18.Nb1 Bb1 19.Rb1 Bd2 20.Kd1 e4–+) 18.Qb7 Rab8 (18...Ba3? 19.Qb3+–) 19.Qg2 (19.Qd5 Rb3 20.h5 Bh7+=) 19...Rb3 20.Nd5 Rb2 21.Nc3 Bb4! (worse is 21...Ba3 22.h5 Bh7 23.g5+=) 22.ab4?? (better is 22.Rc1 Qa3 23.Qd5–+) 22...Qa1–+ 23.Nd1 Bc2 (23...Rb4?! 24.g5 Rb1 25.Be2–+) 24.Be2 Bd1 (better is 24...Rb1 25.0–0 Bd1 (25...Rd1?! 26.Bd1 Bd1 27.Qc6–+) 26.Bd1 Rd1–+) 25.Bd1 Rb1 26.0–0?? Rd1 27.Rd1 Qd1 28.Kh2 Qd2 29.g5 hg5 30.hg5 Qb4 31.Qc6 Rb8 32.Kg3 a5 33.Kg4 Qc4! 34.Qc4 Rb4 35.Qb4 ab4 36.Kf5 b3 37.f4 ef4 38.ef4 b2 39.g6 b1Q 40.Kg4 Qg6 41.Kf3 d5 42.Ke3 Qe4 43.Kd2 d4 44.f5 Qe3 45.Kd1 Qf2 46.f6 d3 47.fg7 Qe2 48.Kc1 Qc2 0–1. combijack (1770) – ulla, gameknot.com, 2010.

5.Nf3 (--> 4.Nf3 Bc5 5.e3).

5.Qg4 Qf6 6.f4 d6 7.Qg3 Nh6 8.Bb5 Nf5 9.Qf2 Qe6 10.fe5 0–0 (10...de5 11.Nf3 f6 12.0–0=) 11.Bc6 bc6 12.ed6 Bd6 13.Nf3 Ba6 (13...Rb8 14.Bc3=) 14.Ng5 Qg6 15.Ne4 Bc7 (15...Rab8 16.Bc3+=) 16.d3 Ba5 (16...Rab8 17.Bc3=) 17.Nbd2 Rfe8 (17...Bb6!? 18.Nf1 Rfe8+=) 18.0–0+/– Bd2 19.Nd2?? (better is 19.Qd2 Rab8 20.Rab1+/–) 19...Ne3–/+ 20.Rfe1 (20.Rfc1 Nc2! 21.Rc2 Bd3–/+) 20...Nc2–+ 21.Re8 Re8 22.Rc1 Bd3 23.Qa7 h5 24.Qd7?? (better is 24.Nf3 Re2 25.g3–+) 24...f6 (better is 24...Re2 25.g3 Rd2–+) 25.Qc6–/+ Re2 26.Bc3 (better is 26.Rc2 Re1 27.Kf2–/+) 26...Rd2?? (26...Ne3 27.g3 Qf5 28.Qa8 Kh7–+) 27.Bd2+– Be4 28.Qc8 Kh7 29.g3 (29.Qh3 Nd4 30.Rf1 Bd3+–) 29...h4? (better is 29...Nd4 30.Kf2 Nf3+=) 30.Qh3+– Qh5 31.Qh4 Qh4 32.gh4 Kg6 33.Rf1 Nd4 34.Kf2 f5 35.Bf4 Nf3 36.a4 Nh4 37.a5 Nf3 (37...Kf6 38.a6 g5 39.Re1+–) 38.a6 Kf6 39.a7 g5 40.Bc7 f4 41.h3 Nd4 (41...Kf5 42.Rd1+–) 42.Ra1 (better is 42.Be5! Ke5 43.Re1 Kf5 44.Re4 Ke4 45.a8Q Ke5 46.Qa5 Ke4 47.Qg5 Nf5+–) 42...Ba8 43.Bd8 Kf5 (43...Kg6 44.Ra6 Kh5 45.Rb6+–) 44.Ra5 Ke4 45.Bg5 Nc6 (45...Ne6 46.Bf6 Nc7 47.Re5 Kd3 48.h4+–) 46.Ra4 (46.Ra4 Ke5 47.Rf4 Na7 48.Ra4+–) 1–0. mikebaldini (1660) – cheeky_knight (1650), gameknot.com, 2014.

5.c4 Nf6

6.Nc3 0–0 7.Nf3 =+.

6.Nc3 d5 7.cd5 Nd5 8.a3 (8.Rc1 0–0=+) 8...0–0 9.Bc4 (9.Nd5 Qd5 10.Qh5 Be6–/+) 9...Nb6 10.Ba2 Bf5 11.Na4 (11.e4 Bd7–/+) 11...Na4 12.Qa4 Qg5 13.Bd5 Bd7 14.Qc2 Qe7 15.Ne2 Rac8 16.Nc3 (16.Be4 h6=+) 16...Be6 17.Be6 Qe6 18.0–0 Na5 (18...Rfd8 19.d3=+) 19.Qa4 (19.f4 f6=+) 19...Nb3 (19...Nc4!? 20.Qb3 Rfd8–/+) 20.Rad1=+ Rfd8 21.Ne4 Be7 (21...a6 22.Ng5 Qd5 23.e4–/+) 22.Bc3 Nc5 23.Nc5= Bc5 24.Rb1 Bb6 25.Qb3 Qb3=+ 26.Rb3 Rc4 27.Rb4 Rb4=+ 28.Bb4 Rc8 29.Bc3 f6 30.Rb1 Kf7 31.Kf1 Ke6 32.Ke2 Kd5 33.a4 Kc6 34.Rc1 Kd7 35.Rb1 Rc7 36.a5 Bc5 37.g4 Kc8 38.g5 Be7 39.gf6 gf6 40.Rg1 Bf8?? (better is 40...b5=) ½–½. Carzolio,L (2040) – Fossati,R (2200), Genova open Ducale, 2003.

6.Nc3 d5 7.cd5 Nd5 8.Bc4 Nd¬b4 9.Ne4 Qh4 10.d3 Bg4 11.Nf3 Qe7 12.a3 Bf3 13.gf3 Na6 14.Ba6 ba6 15.Rc1 Rc8 16.Rc5 0–0 17.Qc2 Qe6 18.Qc4 Qh6 19.Qa6 f5 20.Nd2 f4 21.e4 Rfd8 22.Qc4 Kh8 23.Be5 Ne7 24.Rg1 Rc5 25.Qc5 Ng6 26.Qc7 Rg8 27.Nc4 Qh2 28.Rf1 Qh5 29.Bf4 Qb5 30.Ke2 Qa4 31.Rc1 Qb5 32.Be3 Qh5 33.d4 Rf8 34.Nd2 Qb5 35.Qc4 Qd7 36.d5 Ne5 37.Qc7 Qb5 38.Nc4 Nf3 39.d6 Qa4 40.d7 Ng1 41.Kf1 1–0. Suess – Nehlert, 1986.

6.d4 ed4 7.ed4 Qe7 8.Ne2 Bb4 9.Bc3 0–0 =+.

6.Nf3 d6 7.Be2 (7.d4 Bb4 8.Nbd2 Bg4=) 7...0–0 (7...e4 8.Nd4+=) 8.0–0 Re8 (8...e4 9.Ne1+=) 9.d4 ed4 10.ed4 Qb6 11.Qb3?? (better is 11.Bc3 Bb4 12.a3 Bc3 13.Nc3=) 11...Qb3–+ 12.ab3 Re2 13.dc5 Rb2 14.Nbd2 (14.cd6 Ne4 15.Re1–+). Wartig,Wolfgang – Olej,Emil, corr 3GMM–42, 1995.

6.Nf3 Qe7 7.d3 d5 8.cd5 Nd5 9.Be2 0–0 10.0–0 Rd8 11.Nbd2 Bg4 12.Ne5 Ne5 13.Bg4 Nd3 14.Rb1?? (better is 14.Bd4=+) 14...Ne3!–+ (14...Nb2?! 15.Rb2 Bd6 16.Nf3=) 15.fe3 (15.Qe2 Nf1 16.Qe7 Be7 17.Nf1–+) 15...Qe3 (15...Be3?! 16.Kh1 Nf2 17.Rf2 Bf2 18.Bc3=+) 16.Kh1 Qg1!? (17.Rg1 Nf2#) 0–1. Baranov,Andrey (2115) – Poliakov,Yury (2175), RUS–ch sf Krasnodar, 1999.

5.d4 Qb6

6.Ba3?? Ba3–+ 7.d5 (7.Na3 Qa5 8.Qd2 Qa3 9.de5 Ne5–+) 7...Bb2 8.Nd2 Ba1 (8...Nce7 9.Rb1 Nd5 10.Qg4–+) 9.Qa1 Nce7 10.Qe5 Qf6 (10...f6 11.Qh5 g6 12.Qf3–+) 11.Ngf3 (11.Qf6 Nf6 (< 11...gf6 12.d6–+) 12.e4 d6–+) 11...d6 12.Qf6 Nf6 (12...gf6?! 13.Bc4–+) 13.e4 0–0 (13...Bd7 14.Bd3–+) 14.h3 Ng6 15.Bd3 Nf4 16.Bf1 (16.g3 Nh3 17.Nc4 Rd8–+) 16...Re8 17.e5 (17.Bb5 Re7 18.0–0 Ne4–+) 17...N4d5 18.Nc4 (18.Bb5 Bd7 19.Ne4 Bb5 20.Nd6 Bc6–+) 18…de5 (19.a3 e4–+) 0–1. Fiedler – Merten,Rainer, corr SOK–90–60, 1990.

6.dc5 Qb2 7.Nd2 Qb4 (7...Nb4 8.Bd3) 8.Bc4 Nf6 9.Ngf3 Qc5 10.0–0 d5 11.Bb3 0–0 12.Re1 e4 13.Nd4 Bg4 14.f3 Nd4 15.ed4 Qd4 16.Kf1 ef3 17.Nf3 Qb6 18.Qd4 Bf3 19.Qb6 Bg2 20.Kg2 ab6 21.Re7 Rab8 22.Rae1 Rfe8 23.Re8 Re8 24.Re8 Ne8 25.Bd5 Nd6 26.a4 Kf8 27.c4 Ke7 28.c5 bc5 29.a5 Nb5 30.Bb7 Kd6 31.Be4 c4 32.Bh7 g6 33.Kf2 Ke5 0–1. Stabenow – Vechet, Poland 1976.

5.f4 ef4

6.Bg7 Qh4 7.g3 fg3 8.Bg2 Qg5? (better is 8...gh2!? 9.Kf1 hg1Q 10.Kg1 Qg3 11.Bh8 h6+/–) 9.Bh8+/– gh2 10.Kf1 (10.Qf3 Ne5 11.Be5 Qe5+/–) 10...hg1R (10...hg1B 11.Rg1 Qf5 12.Ke1+/–) 11.Kg1 d6 12.Nc3 Bg4+= 13.Qf1 Bf5 14.Rb1 Rb8 15.Qc4 Bc2 16.Rf1 Bg6 17.Rh7! Bh7 Deflection from f7 18.Qf7 Theme: Double Attack. 18...Kd8 19.Qh7 Threatening mate... how? 19...Nce7 20.Rf8 Kc7 21.Nd5 Qd5 22.Rb8 Be3 23.Kh1 Qd2 Do you see the mate threat?. 24.Rb7 Kd8 25.Rb8 Kc7 26.Rg8 Qe1 27.Kh2 Bf4 28.Kh3 Qe3 29.Kh4 Kb6 30.Bd4 Qd4 31.Qe7 Be5 32.Kh5 Qc5 33.Qb7 Ka5 34.Rc8 Qb6 35.Qd5 Qb5 36.Rc6 Qd5 37.Bd5 Kb5 38.Kg6 Bd4 39.Kf5 Bc5 40.Ke6 a5 41.Rd6 Bb4 42.Bb3 Kc5 43.Rd5 Kb6 44.Ba4 Bc3 45.Rb5 Ka6 46.Kd5 Bf6 47.Kc6 (47.Kc6 Ka7 48.Rb7 Ka8 49.Kc7 Bd8 50.Kc8 Bf6 51.Bc6 Be5 52.Rd7#) 1–0. Koziol,Pawel – Pietrzak,Wojciech, corr, 2000.

6.Bg7 Qh4 7.g3 fg3 8.Bg2 gh2 9.Kf1 hg1Q 10.Kg1 Qg5 11.Bh8 h6?! (11...d6) 12.Nc3 d5? 13.Nd5 Bd6 14.Qf3 Be6 15.Nf6 Nf6 16.Qf6 Kd7 17.Qh6? (17.Qg5; 17.Rh6) 17...Qh6 18.Rh6 Rh8! 19.Rh8 Be5 20.Rh1 Ba1 21.c3 Bb2 22.a4 Bc1? (22...Bb3 23.Kf2 Ba4 24.Rb1) 23.Kf2 Ba3 (no further notation, Black losed finally at time) 1–0. Pietrzak,Wojciech – Szelag,S, Mielec 2000 (Pietrzak).

4.e4 Bc5

5.Nc3 Nf6 6.Rb1 0–0 7.Bd3 Nb4 8.Bc4 d5 9.ed5 Qb6. Schmit.

5.Bc4 Qb6 6.Qf3 Qb2 7.Qf7 Kd8 8.Ne2 Nge7 9.Qg7 Re8 10.0–0 Qa1 11.Nbc3 Qf1 12.Kf1 a6? 13.Bf7 b6 14.Nd5 Bb7 15.Nf6 1–0. Olej – Bures, corr 1963–64.

5.Bc4 Qh4 6.Qf3 (better is 6.Qe2!? Nf6 7.Nf3 Qe4 8.Qe4 Ne4 9.0–0–/+) 6...Nf6–+ 7.Nc3? (better is 7.Nh3 0–0 8.Bd3–+) 7...Nd4 8.Qd3 (8.Qg3 Qg3 9.hg3 Nc2 10.Ke2 Na1 11.Ba1 0–0–+) 8...Nc2! 9.Qc2 (9.Kd1 Na1 10.f3 d6–+) 9…Qf2 (9...Qf2 10.Kd1 Qg2–+) 0–1. Neumann,Frank (1650) – NN, RSS7E easy–66, 2007.

5.Qe2 Nf6 6.Nf3 d6 7.Nc3 Bg4 8.Nd1 Qb6 9.h3 Bh5 10.g4 Bg6 11.d3 Rc8 12.Bg2 Nd4 13.Bd4 Bd4 14.Nd4 Qd4 15.c3 Rc3! 16.0–0 Rd3 17.Nb2 Rd2 18.Qb5 Nd7 0–1. Stvan – Olej, corr 1963–64.

5.Qf3 Qb6 6.Bc4?? (better is 6.Bc3=+) 6...Qb2–+ 7.Qf7 Kd8 8.Ne2 (8.Nf3 Qa1 9.0–0 Nf6–+) 8...Qa1 9.0–0 Nge7 (9...Nf6 10.Qg7 Rf8 11.Nbc3 Bf2 12.Kf2 Ng4 13.Kg3 Qf1 14.Qg4 Qe1 15.Kh3–+) 10.Nbc3 Qb2 11.Qg7 (11.Na4 Qb4 12.Nc5 Qc5 13.Qg7 Ng6 14.Qf6 Nce7–+) 11...Ng6 12.Bf7 Nce7 13.h4 h5 (13...Nh4 14.Qh8) 14.Bg6 Ng6 (14...Rg8 15.Qf6 Qc2 16.Bf7–+) 15.Qg6 Qb6 (better is 15...Be7!? 16.Qg3–+) 16.Qg5 Be7 17.Qe5 Qf6 18.Qf6 Bf6 19.g3 Rg8 20.Kh2 b6 (20...d6 21.Nd5 Bb2 22.Nef4–/+) 21.Nd5 Be5 (21...Ba6 22.d3 Be5 23.f4–/+) 22.f4 Ba6 23.d3 Bh8 24.e5 Rc8–+ 25.Nb4 Bb7 26.c4 a5 27.Nc2 b5 28.Ne3 Ba6 29.Rc1 Re8 30.Nf5 Be5 31.fe5–/+ Re5 32.Ned4 bc4 33.Nd6 Rd5 34.Nc8 Rd4 35.Nb6 cd3 36.Kg2 d2 37.Rd1 Be2 (38.Rb1 d1Q 39.Rd1 Rd1–+) 0–1. Uvarov,Igor – Lanzev,Dmitry, Tula–ch Region, 2002.

5.Nf3 Qb6!! 6.Be5? (6.Na3 Bf2 7.Ke2 Qb2 8.Nc4 Qb4 9.Kf2 Nf6 10.d3 Qc5 11.Ke1 b5 =+; 6.Qc1 Bf2 7.Kd1 d6 8.Ba3 Nf6 9.Nc3 Qd8 10.Bb5 0–0 11.Rf1 Bb6 =+) 6...Bf2 0–1. Heyn – Schmit, corr ICCF EU–3–7–1113 1994.

5.Nf3 d6 6.Bc4? Qb6–+ 7.Ba3 Bf2 8.Ke2 Nd4 (better is 8...Bc5–+) 9.Nd4?? (better is 9.Kf2 Nc2 10.Ke2 Na1 11.Nc3+=) 9...Qd4 (better is 9...Bd4 10.Qf1 d5 (10...Ba1?! 11.Qf7 Kd8 12.Qg7+=) 11.Bd5 Qa6 (11...Ba1 12.Qf7 Kd8 13.Qg7–+) 12.Ke1 Qf1 (12...Ba1 13.Qf7 Kd8 14.Qf8 Kc7 15.Qc5 Kd8 16.Rf1 Qf1 17.Kf1+–) 13.Rf1 Ba1 14.Bf7 Kd7–+) 10.Nc3?? (10.Bb5 Ke7 11.c3 Bg4 12.Kf1 Qe4 13.Be2 Be2 14.Qe2 Qe2 15.Ke2–+) 10...Bg4 (10...Qc4?! 11.Kf2 Nf6 12.Qe2 Qd4 13.Ke1–/+) 11.Kf1 Bd1 12.Rd1 (12.Bb5 Kd8 13.Rd1 Nf6–+) 12...Bh4 (12...Qc4!? 13.Kf2 Nf6 14.Rhe1–+) 13.Bd3 0–1. Nylson – Albus,Ludwig, playchess.de, 2002.

5.Nf3 d6 6.Bc4 Nf6 7.d3? (7.Qe2 0–0=+) 7...0–0 (better 7...Qb6!? 8.Bc1 Bf2 9.Kf1 Be3 10.Be3 Qe3–+) 8.0–0=+ a6 9.a4 Qb6 10.Bc3 Ng4 11.Be1 Be6 12.Be6 fe6 13.h3 Nf6 14.Nbd2 d5 15.ed5 ed5 (worse 15...Nd5 16.Ne4+=) 16.Nb3 Bd6 17.Rb1 Qc7 18.c4 dc4 19.dc4 Qe7 (19...e4 20.c5 Bf4 21.Nfd2=+) 20.Bd2 (20.Bc3 Bb4 21.Bb4 Nb4=) 20...Rad8 21.Be3 Bb8 (21...e4 22.Nfd4–/+) 22.Qc1 e4 23.Nfd4 Qe5 (23...Nb4!?=+) 24.f4= ef3 25.Nf3 Qg3 26.Bf2 Qf4 (26...Qc7 27.a5 A) worse 27...Na5 28.Na5 Nd7 29.Bh4 (29.Nb7? Rf3 30.Nd6 Rf2 31.Kf2 Ba7 32.Kg3 Nf6–+) 29...Qc5 30.Kh1 Qa5 31.Bd8 Qd8 32.Rb7+–; B) 27...Nd7=) 27.Qf4+– Bf4 28.Nbd4 Nd4 29.Nd4 (29.Bd4?! Ne4 30.Rbe1 Nd2=) 29...Rde8 30.Nf3 (30.g3!? Bd2 31.Rb7=) 30...Rf7= 31.Bd4 Nh5 32.Rfe1 Rfe7 33.Re7 Re7 34.Re1 Re1 35.Ne1 Ng3 36.Kf2 g5 37.Nd3 Ne4 38.Kf3 (38.Ke2!?+=) 38...Nd2= 39.Kg4 Nc4 40.Nf4 gf4 41.Kf4 Kf7 42.g4 Kg6 43.h4 h5 44.g5 Nd2 (44...b5 45.ab5 ab5 46.Bc5+=) 45.Bf2 (45.a5!?+–) 45...b5+= 46.ab5 ab5 47.Ke3 (47.Be1 Nb3+=) 47...Nc4= 48.Kd4 Nd6 49.Be1 Kf5 50.Kc5 Ne4 ½–½. Menouar,Elhadi (1660) – Harichane,Bassem, 11th Memorial International Kheireddinn, 2012.

5.Nf3 f5 6.Qe2 (6.ef5 Qb6 Combination) 6...Nf6 (6...Qb6 7.Bc3 d6+=) 7.d3 (7.ef5 Qe7 8.d4 (worse is 8.Ne5 Nd4 9.Ng6 hg6 10.Bd4 Bd4–+) 8...Nd4 9.Nd4 ed4 10.Qe7 Ke7 11.Nd2=) 7...d6 (7...fe4 8.Ne5 Nd4 9.Qd2–/+) 8.h3 Be6 (8...Qb6 9.Bc3–/+) 9.Nbd2 (9.ef5 Bd5 10.Nbd2=) 9...d5 (better is 9...0–0!?–/+) 10.ef5+= (worse is 10.Be5 fe4 11.Bb2 0–0–/+) 10...Bf5 11.Ne5 (11.d4 Bb4 12.c3 Ba5 13.Ne5 0–0=) 11...0–0= 12.Nc6 bc6 13.0–0–0 (13.Kd1 Re8 14.Qf3 Rb8=) 13...Rb8 14.Nb3 Re8?? (better is 14...Bd6+=) 15.Qf3+– Be4 (15...Ne4 16.de4 (16.Qf5?! Nf2 17.d4 Nh1 18.dc5 Qh4+=) 16...Qg5 17.Nd2 Be4 18.Qg3 Qg3 19.fg3+–) 16.de4 Ne4 17.Nc5 Nc5 18.Qc3?? Qe7?? 19.Ba3?? Qg5? 20.Qd2+/– Qd2 21.Rd2+– Ne4 22.Re2 Nc3 23.Re8 Re8 24.Bd3 Rb8 25.Kd2 Na2? 26.Ra1 Nb4 27.Bb4 Rb4 28.Ra7 c5 29.Ra8 Kf7 30.Bh7 Rd4 31.Ke3 Rd1 32.Ra5 d4 33.Ke2 Rg1 34.g3 c4 35.Rd5 Rh1 36.h4 d3 37.cd3 c3 38.Rc5 Rc1 39.d4 g6 40.Rc7 Ke6 41.Rc6 Kd5 42.Rc8 Kd4 43.Bg6 Ra1 44.h5 Ra2 45.Kf1 Rd2 46.Rd8 Kc4 47.Rd2 cd2 48.Ke2 Kc3 49.h6 1–0. Hal1958 – Adamant, playchess.de, 2003.

4.Nf3 Bc5

5.d4 Qb6 6.dc5 Qb2 7.Nbd2 Nf6 8.c3 e4 9.Nc4 Qc3 10.Nfd2 0–0 11.Qc1 Qb4 12.Nd6 e3 13.fe3 Ne8 14.Rb1 Qa5 15.Rb5 Qa2 16.N6c4 Qa6 17.Qb2 Nc7 18.Rb3 Na5 19.Na5 Qa5 20.Qa3 Qa3 21.Ra3 Re8 22.Nc4 Re6 23.e4 Na6 24.Ra5 Re4 25.e3 Re6 26.Nb2 Nc7 27.Bd3 Re3 28.Kd2 Re6 29.Rha1 Rc6 30.h3 a6 31.Rc1 d5 32.Na4 Rb8 33.Rb1 Rf6 34.Kc3 Bd7 35.Nb6 Bc6 36.Rb2 Ne6 37.Kb4 Rd8 38.Rd2 h6 39.Rda2 Nf4 40.R5a3 d4 41.g3 0–1. marekt – Tihomir_Glowatzky, ChessWorld.net, 2003.

5.e3 a6 6.Ne5+/– Be3?? (better is 6...Nf6+/–) 7.de3+– Ne5 8.Be5 Qa5 9.Bc3 Qa4 (9...Qg5+–) 10.Bg7 f6 (10...Qc6 11.Bh8 d6 12.Nd2+–) 11.Bh8 Qb4 12.Nd2 Qa5 13.Bd3 Qg5 14.g3 (better is 14.h4 Qh6 15.Qg4 Qf8+–) 14...d5 15.Nf3 Qg4 (15...Qh5 16.Nd4 Bg4 17.Qb1+–) 16.Be2 (better is 16.Bh7!? Bf5 17.h3 Qb4 18.Nd2 Bh7 19.Qh5 Kf8 20.Qh7 Qe7+–) 16...Qb4 17.Qd2 Qb2 (17...Qd2 18.Kd2 Nh6 19.Nd4+–) 18.0–0 Be6 19.Qd3 (better is 19.Rfb1 Qa3+–) 19...0–0–0 20.Rfb1 Qa1 21.Ra1 b5 22.Qc3 (22.a4 d4 23.Nd4 Rd7 24.ab5 Ne7+–) 22...Kb8 23.Bf6 Nf6 24.Qf6 Re8 25.Nd4 Bd7 26.Qd6 Kc8 27.Qa6 Kc7 28.Nb5 Kd8 29.Qa8 (29.Qb6 Ke7 30.Qd6 Kf7 31.Qd7 Re7 32.Nd6 Kf6 33.Qf5 Kg7 34.Qg5 Kf8 35.Qf6 Kg8 36.Nf5 h6 37.Ne7 Kh7 38.Bd3#) 29...Ke7 30.Qd5 Rd8 31.Qd6 (31.Qd6 Kf7 32.Bc4 Kg7 33.Qe7 Kg6 34.Bf7 Kg7 35.Be8 Kg8 36.Qf7 Kh8 37.Qf8#; 31.Qg5 Kf7 32.Nd6 Kf8 33.Qf6 Kg8 34.Bc4 Be6 35.Be6#) 1–0. Valpa – Texmexfire, playchess.de, 2002.

5.e3 Qc7 6.c4 (6.Ne5 Ne5 7.f4 Bd6=) 6...Nf6 7.Na3 a6 8.Be2 0–0 9.0–0 d6 (9...e4 10.Nh4+=) 10.Nc2 Be6? (10...Bb6 11.d4=) 11.Rc1 (11.d4 b6+–) 11...Rfe8 (11...Qa5 12.d4 Qa2 13.Rb1 ed4 14.ed4+=) 12.Re1 (better is 12.d4+/–) 12...Qa5 13.a3 Rac8 (13...Bf5!?=) 14.d4+/– ed4 15.ed4 Nd4? (better is 15...Bb6+=) 16.Ncd4 Qb6 17.Qb3 (17.Rb1!? d5 18.Qb3 dc4 19.Bc4 Bc4 20.Re8 Re8 21.Qc4 Ba3+–) 17…Ne4 1–0. Fournier,Frederic – Robeson,Christian, Train France (FRA), 1999.

5.e3 d5 6.Ne5+– White gets in control 6...Ne5 (6...Nf6 7.Bb5 Qb6 8.Nc3+=) 7.Be5 Nf6 8.Bf6 Qf6 9.d4 Bf5 (9...0–0 10.Bd3 Rd8 11.0–0+–) 10.Bd3 Bd3 11.Qd3 0–0 12.0–0 Bb6 13.Nc3 Rac8? (better 13...Qc6+–) 14.Nd5+– Qc6?? (14...Qd6 15.c4 Bc7+–) 15.Ne7 Kh8 16.Nc6 bc6 17.c4 c5 18.d5 Rfe8 19.a4 a5 (19...Ba5 20.Qf5 Kg8 21.Rab1+–) 20.Rab1 Bd8 21.Rb5 Bf6 22.Rfb1 h6 23.Ra5 Rb8 24.Rab5 (better 24.Rb8 Rb8 25.Rc5 g6+–) 24...Ra8 25.a5 Bd8 26.g3 (26.d6!? Rf8+–) 26...Ba5 27.Rc5 Bb6 28.Rcb5 (better 28.Rb6 Kg8+–) 28...Bc7 29.d6 Rad8 30.c5 (30.dc7 Rd3 31.Rb8 Kh7 32.Re8 Rd7 33.c8Q Kg6 34.Qd7 f6 35.Qg4 Kf7 36.Rb7 Ke8 37.Qc8) 30...Bb8 31.Qd5 (better 31.Rb8 Rb8 32.Rb8 Rb8+–) 31...g6 32.Rb8! Rb8 33.Rb8 Rb8 34.d7 Rd8 35.c6 (35.Qf7 Rb8 36.c6 h5 37.c7 Rb1 38.Kg2 Rg1 39.Kg1 g5 40.d8Q) 35...Kg7 (35...Kh7 36.Qf7 Kh8 37.c7 Rg8 38.c8R Rc8 39.dc8Q) 36.c7 Rd7 (36...Rh8 37.Qe5 Kh7 38.d8Q Rd8 39.cd8Q g5 40.Qdf6 g4 41.Qf7) 37.Qd7 (37.Qd7 g5 38.c8Q h5 39.Qe7 Kh7 40.Qf7 Kh6 41.Qce6) 1–0. BeepBeepImAJeep (2415) – ElvisChessley (1750), lichess.org, 2018.

5.e3 e4?? 6.Nd4 Nd4 7.Bd4 Bd4=+ 8.ed4 Nf6 9.Nc3 0–0 10.Bc4 (10.Rb1 d5=+) 10...d5–/+ 11.Bb3 e3 (better 11...Qb6–/+) 12.de3+= Ne4 (12...Bf5 13.0–0+=) 13.Ne4 Qa5?? (better 13...de4 14.Qh5 a5+–) 14.Nd2 Bg4 (14...Bf5+–) 15.Qg4 Qd2 (15...Rad8+–) 16.Kd2 Rac8 17.Qc8! Rc8 18.Kd1 (18.Bd5 b6+–) 18...Rc3 (18...Rd8 19.c4 dc4 20.Bc4+–) 19.Ke2 Re3 (19...Re3 20.fe3 Kf8+–). FeegLood (2100) – Arka50 (2130), lichess.org, 2015.

5.e3 e4?? 6.Bg7+– ef3 7.Qf3 Qe7 8.Bh8 Nh6 (8...Bd4 9.Qg3 Bh8 10.Qg8 Qf8 11.Qf8 Kf8 12.d4+–) 9.Nc3 d6 (9...Nb4 10.Rc1+–) 10.Nd5 Qd8 (10...Qf8 11.Bc3 Kd7 12.Qh3 f5 13.Nf6 Kc7 14.Nh7+–) 11.Bf6 Qa5 12.Bc3 Bb4 13.Nb4 Nb4 14.Qe4 Kd8 15.Bb4 (15...Qe5 16.Qh4 Kc7 17.Bc3+–) 1–0. Frank Bendig – rookie2, ChessWorld.net, 2004.

5.e3 Nge7 6.d4 (6.Ne5!? 0–0 7.Qg4 Ne5 8.Be5+=) 6...ed4= 7.ed4 Bb4 8.Nbd2 (8.c3 Bd6+=) 8...0–0 (Better is 8...d5=) 9.d5?? (Better is 9.c3 Ba5 10.Bd3=) 9...Nd5–+ 10.Bc4 (10.Be2 Re8 11.Kf1 Nc3 12.Bc3 Bc3–+) 10...Re8 11.Kf1 Nb6 12.Bb3 Bd2 13.Qd2–/+ d6 14.Qc3 Ne5–/+ 15.Qb4?? Be6 16.Qa4?? Nf3 17.gf3 Bd7 18.Qe4?? Re4 19.fe4 Bh3 0–1. Slavisa666 – CharlieChess, Live Game Caissa's Web, 2004.

5.e3 Nf6 6.Ne5 Qe7 7.Ng4 Ne4 8.Bg7 Rg8 (9.Bb2 d5+/–). pcmvr (2450) – yknets (2400), net–chess.com, 2006.

5.Be5 Ne5–/+ 6.Ne5 Bd4 7.Nd3?? Ba1–+ 8.c3 Qa5 (8...Qe7 9.Qc1 d5 10.Nb4–+) 9.Qb3 d6 10.a4 Bd7 11.Qa2 Qa4 12.Na3 Bc3! 13.dc3 Nf6 14.Nb2 Qc6 15.c4 Qa6 16.f3 Qa5 17.Kf2 0–0 18.Nd3 a6 19.Qb2 b5 20.e3 Rfb8 21.c5 (21.cb5 ab5 22.Nc2 b4–+) 21...dc5 22.Nc5 Bf5 23.Nb3 Qb4 24.Be2 (24.Nc2 Bc2 25.Qc2 Nd5–+) 24...Rc8 25.e4 (25.Bd1 Be6 26.Nb1 Rd8–+) 25...Be6 26.Rb1 Rc3 27.Bd1 Rd8 28.Bc2 (28.Kf1–+) 28…Rb3! (28...Rb3 29.Bb3 Rd2 30.Qd2 Qd2 31.Kg1 Bb3 32.Nb5 ab5–+) 0–1. Shorokhov,Mikhail – Oganyan,Arsen (2230), Anapa op, 2008.

5.Be5 Ne5 6.Ne5 Bd4 7.Nf7 Kf7 8.c3 Nf6?? (8...Bb6 9.e4–/+ Nf6 10.Bc4 Kg6 11.e5 Re8 12.Qc2 Kh6 13.d4 d5+=; 8...Be5 9.d4 Bc7 10.e4 g6 11.Bd3 Kg7 12.0–0 Ne7 13.Re1 Rf8–/+) 9.Na3?? (9.cd4 d5+–) 9...d5?? (9...Bc5 10.Nc4–+) 10.e3?? (10.cd4 Rf8 11.e3+/–) 10...Nd7?? 11.Be2?? Rf8?? 12.0–0?? Kg8?? 13.f4?? Nf6?? 14.Nc2?? Bf5?? 15.Ne1 0–1. Radwan,Jan (1745) – Lipski,Tadeusz (2005), Sielpia Wielka k. Konskich Poland, 2010.

5.Ne5?? Qb6 6.Nd3 Bf2 7.Nf2 Qb2 8.Nc3 Nb4 9.Nd3?? Nc2 10.Kf2 Qb6 0–1. Szostek – Pytel, Chelm 1962.

5.Ne5?? Qb6 6.Nd3 Bf2 7.Nf2 Qb2 8.Nc3 Qb6 9.Nd5 Qd8 10.e4 Nf6 11.Nf6 Qf6 12.Be2 0–0 13.0–0 Qd4 14.c3 Qb6 15.d4 d5 (15...d6!?+=) 16.ed5+– Ne7 17.Bf3 Rd8 18.Kh1 (18.Qe2 Nf5+– (18...Nd5?? 19.Bd5 h6 20.Ng4+–)) 18...Bf5 (better 18...Nd5!? 19.Qd3 Qc7=) 19.c4+– Rac8 20.c5 Qh6 21.d6 Ng6 (21...Nc6 22.Bc6 bc6 23.Qa4+–) 22.Ng4 (22.Bb7!? Rb8 23.Be4 Nh4+–) 22...Bg4 23.Bg4 Qh4?? (23...Rb8+–) 24.Bc8 Rc8 25.Qf3 Rd8 (25...Rf8 26.Rae1 Qd4+–) 26.Qf7 Kh8 27.Rae1 h5 28.Qg6 Qe4 29.Re4 (29.Re4 Kg8 30.Rf7 Rd6 31.Qg7; 29.Qh5 Qh7 30.Re8 Re8 31.Qe8 Qg8 32.Qh5 Qh7 33.Rf8) 1–0. FeegLood (2830) – lovlas (2745), lichess.org, 2016.

5.Ne5?? Ne5?? 6.Be5+/– Nf6 7.e3 d6 8.Bb5 Kf8 9.Bf4 (9.Bf6 Qf6 10.d4 d5+/–) 9...Nd5 10.Bg3 h5 11.Qf3 Nb4 12.Na3 (better is 12.Ba4!? h4 13.Bb3+=) 12...h4=+ 13.Bf4 g5 (14.0–0 a6=+) =+. rookie2 – Frank Bendig, ChessWorld.net, 2004.

5.e3 Qb6

6.Qc1 f6 7.Nc3 Qd8 8.Bc4 Nge7 9.0–0 d5 10.Bb3 Be6 11.Ne2 Bd6 12.c4 Nb4 (12...dc4 13.Bc4 Bc4 14.Qc4=) 13.d4 (better is 13.cd5!? Ned5 14.Qb1=+) 13...Nd3–/+ 14.Qc2 e4 15.Ne1 (15.Nd2!?=+) 15...dc4–/+ 16.Ba4 Bd7 17.Bd7 Qd7 18.a3 (18.Nc3 Qg4–/+) 18...Qb5 19.Rb1 Qh5 20.f4 0–0 (20...Rc8 21.Nc3 Qg6 22.Qa4 Kf7 23.Nd3 ed3 24.Bc1=+) 21.Ba1? (21.Qc4 Qd5 22.Qd5 Nd5–/+) 21...b6 (21...b5 22.Nc3 Rfb8 23.Ne4 Ne1 24.Rfe1 Ba3 25.Qc3–/+) 22.a4? (22.Qc4 Qd5 23.Qa6 Ne1=+) 22...f5?? (22...Rac8 23.Ng3 Qd5 24.Nd3 ed3 25.Qd2–+) 23.Qa2? Rac8–+ 24.Nd3 ed3 25.Ng3 Qf7 26.Rfc1 Nd5 27.Nf1 Qe6 28.Rd1 Rfe8 29.Qb2 c3 (30.Qc1 c2 31.Rd3 cb1R 32.Qb1 a6–+) 0–1. Spiegel,M – Tuchtenhagen,Harald, corr SOK–88–22, 1988.

6.Qc1 f6? 7.Nc3! Nge7 8.Bc4 Qb4 9.Bb3 Qg4 10.0–0 e4 11.Ne1 h5 12.f3 ef3 13.Nf3 d6 14.Nb5 Kd7 15.d4 Bb4 16.a3 Ba5 17.d5 Ne5 18.Ne5 de5 19.c4 h4? 20.h3! Qg5 21.Ba4 Kd8 22.Nd6 Rf8 23.Rf3 Bc7 24.Ne4! Qg6 25.Nc5 f5 26.Qd2 Bd6?! 27.Ne6 Be6 28.de6 Qe6 29.c5 Kc7 30.cd6 Qd6 31.Rc1 Nc6 32.Qa5 Kd7 33.Qb5! 1–0. Schuehler – Steiger, corr DDR 1976–77.

6.Be5 Ne5

7.Ne5 Qb2 8.Nc3+– Bb4?? 9.Rb1 (better 9.Nc4 Bc3 10.Nb2 Bb2+–) 9...Qa3 (9...Qc3 10.dc3 Bc3 11.Ke2 Be5+–) 10.Nc4 Qa6 11.Rb4 Qf6 (11...Qc6 12.Qg4 Kf8 13.Qd4+–) 12.Ne4 Qe7 13.Ncd6 Kf8 14.Rd4 Nf6 (14...Nh6 15.Qf3+–) 15.Qf3 (15.Nf6!? Qf6 16.Bc4 b5 17.Nb5 Rb8+–) 15...Ne4 16.Ne4 a5 (16...d5 17.Nc3 Be6 18.Nd5 Bd5 19.Rd5+–) 17.Bd3 (17.Nd6 Qf6 18.Qd5 g5+–) 17...a4 (17...d5 18.Rd5 Be6 19.Re5+–) 18.0–0 (better 18.Nd6 Qf6 19.Qd5 g5+–) 18...Ra5 (18...d5 19.Nc3 Bd7 20.Nd5+–) 19.Ra1 (better 19.Nd6 Rc5+–) 19...Rg5 (19...d5 20.Nc3+–) 20.h3 (better 20.Rc4 g6 21.Ng5 Kg7+–) 20...Rg6 21.Ra4 d5 (21...Qe5 22.Rb1+–) 22.Ng3 (better 22.Ra8 Rc6 23.Nc3+–) 22...Qh4 (22...Rd6+–) 23.Bg6 (better 23.Rh4 Rc6 24.Qd5 Ke7 25.Qe5 Kf8+–) 23...hg6 24.Rh4 Rh4 25.Rb1 (better 25.Qd5 Ke8 26.Ne4 Re4 27.Qe4 Be6 28.Rb1 Kf8 29.Rb7 g5 30.d4 g4 31.Qe5 Kg8 32.Rb8 Bc8 33.Rc8 Kh7 34.Qh5) 25...Bh3 26.gh3 Rh3 27.Kg2 (27.Rb7 f6 28.Qd5 Rg3 29.fg3 Ke8 30.Qg8) 27...Rh2 28.Kh2 f5 (28...b5 29.Rb5 Ke7 30.Rb7 Kd6 31.Qf7 d4 32.Ne4 Ke5 33.Re7) 29.Qd5 (29.Rb7 Kg8 30.Qd5 Kh7 31.Qd4 g5 32.Qg7) 29...g5 (29...Ke7 30.Rb7 Kf6 31.Ne4 fe4 32.Rf7) 30.Qf5 (30.Rb7 g4 31.Qd8) 30...Kg8 (30...Ke7 31.Rb7 Kd6 32.Ne4 Kc6 33.Qd7) 31.Rb7 g4 32.Qf7 (32.Rb8) 32...Kh8 (32...Kh7 33.Qg7) 33.Rb8 (33.Qg7) 33...Kh7 34.Qh5 1–0. Akrapovik – matadores, lichess.org, 2019.

7.Ne5 Qb2 8.Nc3+– d6?? 9.Nc4 Qa1 10.Qa1 Nf6 11.Be2 (11.d4 d5+–) 11...0–0 (11...d5 12.Nd5! Nd5 13.Qg7+–) 12.0–0 d5 13.d4 Bb4 14.Ne5 Be6 15.Qb2 Bc3 16.Qc3 Ne4 17.Qb2 Nd6 18.Bd3 b5 19.Rb1 a6 20.Qa3 Nc4 21.Nc4 bc4 22.Be2 Rfb8 23.Rb2 g5 24.h3 (24...Kg7 25.Kh2+–) 1–0. Emberger,Rene – Spirk,Stefan (2080), Graz op, 2002.

7.Ne5 Qb2 8.Nc3+– Bd6 9.Nc4 Qb4 +–.

7.Ne5 Qb2 8.Nc3 Be7 +–.

7.Ne5 d6 8.Nc4 Qc7 9.d4 Bb4 10.c3 b5 11.Ncd2 (worse is 11.cb4 bc4 12.Nc3 Rb8+/–) 11...Ba5 12.Bb5 Bd7 (12...Kd8 13.0–0+–) 13.Qa4 0–0–0? (13...Nf6 14.Nc4 Bb6 15.Bd7 Nd7 16.Qb4+–) 14.Nc4 (14.Ba6!? Kb8 15.Qb3 Ka8 16.Qf7 Bc6 17.Qc7 Bc7+–) 14...Bb5 15.Qb5 (15.Qa5? Qc4 (15...Bc4?! 16.Qa4–/+) 16.Kd1 Qe2 17.Kc1 Bd3–+) 15...Bb6 16.0–0 d5 17.Nb6 Qb6 18.Qa4 Nf6 19.Nd2 Rd6 20.Rab1 Qa6 21.Qc2 Rhd8 (21...Re8 22.Nf3+–) 22.Rb3 Kd7 23.c4 Ke7 24.c5 R6d7 25.Rfb1 Qc6 26.Nf3 Qc8 27.Ne5 Rc7 28.c6 Qa6 29.Rb7 Rdc8 30.Qc5 (better is 30.Qb3 Ke6 31.Rb5+–) 30...Ke8 (30...Ke6 31.Rc7 Rc7+–) 31.Rc7 Rc7 32.Rb8 Rc8 33.Qd6 (33.Qd6 Rb8 34.Qb8 Ke7 35.c7+–) 1–0. Fournier,Frederic (2205) – Mandras,Cyprian (1945), Chess.com, 2013.

7.Ne5 Nh6 8.Nc3 Qc7 9.f4 0–0 10.Bc4 d6 11.Nd5 Qa5 12.Ne7 Kh8 13.Nf7 Rf7 14.Bf7 Nf7 15.Nc8 Rc8 16.0–0 Nh6 17.c3 Bb6 18.Qf3 Rc7 19.Qe4 Qf5 20.Qe8 Ng8 21.a4 a6 22.Rab1 Rc8 23.Qc8 Qc8 24.Rb6 h6 25.Rfb1 Qf5 26.R1b4 Qd3 27.Rd4 Qe2 28.Rb1 Nf6 29.Rf1 d5 30.Rf2 Qd1 31.Rf1 Qc2 32.h3 Qa2 33.Re1 Kh7 34.Kh1 h5 35.Rg1 Ne4 36.c4 Ng3 37.Kh2 Ne2 38.Rd5 Ng1 39.Kg1 Qc4 40.Rd4 Qe2 41.Kh2 Qe1 42.a5 Qb1 43.Rd5 g6 44.Kg3 Qe4 0–1. Krylov – Machala, 1967.

7.Ne5 Bd4

8.Nf7 Ba1 9.Nh8 d5 +–.

8.ed4 Qd4

9.Qe2?? Qa1=+ 10.Ng6 Kd8 11.Nh8 Qb1 12.Qd1 Qa2 13.Be2 Qe6–/+ 14.0–0? Qe8–+ 15.Bc4 Nh6 16.Nf7 Nf7 17.Re1 Ne5 18.d4 Nf3 19.gf3 Qh5 20.Qe2= Kc7 ½–½. Tuchtenhagen,Harald – Bendig,Frank, corr SO, 1990.

9.Nf7 Qa1?? 10.Nh8+– Qa2 11.Nc3 Qe6 12.Qe2 Nf6 13.Qe6 de6 14.g4 Bd7 15.g5 Ng4 16.Be2 Ne5 17.f4 Bc6 18.0–0 Nd7 19.f5 e5 20.Bc4 0–0–0 21.Nf7 Rf8 22.Be6 (22...Kc7 23.Re1+–) 1–0. Weegenaar – Bendig,Frank, corr, 1992.

9.Nf7 Kf7 10.c3 Qe4 11.Qe2 d5 +/–.

9.Qh5 Qa1 10.Qf7 Kd8 11.Qg7 Qb1 12.Ke2 Qb5 13.Kf3 (13.c4 Qa6 14.Qh8 Qe6+–) 13...Qd5 14.Kg3 Kc7 (14...d6 15.Nf7 Kc7 16.Bc4+/–) 15.Qh8+/– b6? (better is 15...Qd6+/–) 16.Bc4+– Qd2 (16...Qd6 17.Bg8 Bb7+–) 17.Qg8 (17.Bg8?! Qc3 18.f3 Bb7+–) 17...Bb7 18.Qg7 (18.Qh7 Qc3 19.Nd3 Qc4 20.Qd7 Kd7 21.Ne5 Kc7 22.Nc4 Rg8 23.Kf4 Rg2+=) 18...Qc2 (18...Rd8+–) 19.Qd7 (19.Qd7 Kb8 20.Qd6 Kc8 21.Be6#) 1–0. b4_player – opponent, gamecolony.com, 2007.

9.Qh5 Qa1 10.Qf7 Kd8 11.Qg7 Qb1 12.Ke2 Qc2 13.Nf7 Kc7 14.Qe5 Kb6 15.Qd4 Qc5 16.Qb2 Kc7 17.Nh8 +/–.

5.e3 d6

6.Bb5 Nge7 7.0–0 0–0 (7...Qb6 8.a4 Bg4 9.d4 Bf3 10.gf3+= (< 10.Qf3 ed4 11.ed4 Bd4=+)) 8.d4 Qb6 (8...ed4 9.ed4 Bb6=) 9.dc5 (better is 9.c4!? a6 10.dc5 dc5 11.Qa4+=) 9...Qb5=+ 10.cd6 Qb2 11.de7 Ne7 (11...Re8 12.Nbd2=+) 12.Nbd2 Qc3 13.Ne4 Qc6 14.Ng3 (14.Qd6 Qe4 15.Qe7 Bg4=+) 14...f6 (14...Ng6 15.Ng5=+) 15.Qd3 Be6 (15...Bg4 16.e4=+) 16.Rfd1 Rac8 c2 (16...Nd5 17.Nf5 Rfe8 18.a3–+) 17.Qa3 Nf5 18.Nf5 Bf5 19.Ne1 (19.Qa7? Ra8 (< 19...Bc2 20.Rdc1–+) 20.Nd4 Ra7 21.Nc6 bc6–+) 19...a6 (19...Bc2? 20.Rdc1+– (20.Nc2?! Qc2 21.Qa7 Rfd8 22.Rd8 Rd8=)) 20.Rab1 Rfd8 (< 20...Bc2 21.Rdc1 Bb1 22.Qb3 Rf7 23.Rc6 Rc6 24.Qb1+/–) 21.Qe7 (21.Rd8 Rd8 22.Qe7 Rb8=+) 21...Rd1 22.Rd1 Qc7 (22...b5 23.Rd8 Rd8 24.Qd8 Kf7 25.Qd2=+) 23.Qb4 h6 24.h3 b5=+ 25.a4 ba4 26.Qa4 Qb6 27.Ra1= Rc6 28.Nd3 Kh7 29.Kh2 Qc7 30.Nb4 Rc4 31.c3 Bc8 32.Qe8 Qd6=+ 33.Qf7 Be6 34.Qb7 e4 35.Kg1 Qe5 36.Ra3 a5 37.Nc6= Qd6 38.Na5+= Bd5?? 39.Qb2 Rc8 40.Nb3?? Rb8 (41.Qc1 Bb3–+; 40...Rc3 41.Qc3 Qa3 42.Qc8 Qb3 43.Qf5 Kh8 44.Qc8 Bg8 45.h4–+) 0–1. Dziel,Jaromir – Blaszczak,Jan, corr 2. AMM, Poland, 1994.

6.Nc3 Nf6 7.d4 Bb4 8.a3 Ba5 9.d5 (9.Bc4!? d5 10.Bb5–+) 9...Ne7 10.Bb5 Bd7 11.0–0 Bc3 12.Bd7 Qd7 (worse is 12...Kd7 13.Bc3 Ke8 14.Bb2+=) 13.Bc3 Ned5 14.Bb2 Qc6 15.Rc1 b5 16.Qe2 Nb6 17.Nd2 0–0 18.c4 bc4 19.Nc4 Qb5 20.Rfe1 Nc4 21.Rc4 d5 (21...Rab8 22.Rb1–/+) 22.Rb4 Qe2 23.Re2 e4 (23...Rfe8 24.Rb7–/+) 24.h3 Nd7 25.Bd4 h6 26.Rd2 Rfc8 27.Rb5 Rc1 28.Kh2 Nb6 29.Bb6 ab6 30.Rb6 Ra3 31.Rd5 Rc7 32.Rb8 Kh7 33.Re8 Ra2 (33...Rd3 34.Rb5 Rd2+=) 34.Kg3+= (worse is 34.Re4 Rf2 35.Rg4 Re2+=) 34...Rc6 (34...Ra4 35.Rd4 Rd4 36.ed4 Rc3 37.Kf4+=) 35.Re4+/– Rg6 ½–½. Tagirov,Kajum K (1920) – Shaikhutdinova,Asija (1930), Ufa Dautov Memorial op, 2009.

6.Nc3 Nf6 7.h3 0–0 (7...h6 8.Nb1=) 8.Be2 (8.Na4 Qa5 9.Nc5 Qc5+=) 8...e4 9.Nh2 d5 10.Na4 (10.Nf1 Be7=) 10...Bd6 11.c4 (11.Nf1 Be6+=) 11...Be5 (11...Bh2 12.cd5 Nb4 13.a3 Nd3 14.Bd3 ed3 15.Rh2 Nd5 16.Qb3=) 12.cd5 Nd5 (12...Bb2 13.Nb2 Nd5 14.Qb1=) 13.Be5 Ne5 14.0–0 (14.Qb1 Qh4=) 14...Ng6 (14...Qg5 15.Kh1=) 15.f4 (15.Rc1 Qg5 16.Bg4 f5=) 15...Qa5 16.Rc1 b6 17.Bc4 (17.Nb2 Rd8 18.Qc2 Bf5+= (18...Qa2? 19.Ra1 Nb4 20.Qe4 Qb2 21.Qa8+–)) 17...Nf6 18.Nc3 Ba6 19.Ba6 Qa6 20.Ng4 Ng4 21.Qg4 f5 22.Qg5 Qd3 23.Rf2 Rac8 24.h4 b5 25.h5 b4 26.Ne2 Rc1 27.Nc1 Qb1 28.Rf1+= Nh8 29.Qe7 Nf7 30.Qa7+/– Nh6 31.Qa6 Rd8 32.Qc4 Kh8= 33.Qb3 Qb3 34.Nb3 Ra8 35.Ra1 Kg8 36.Kf2 Ng4 37.Kg3 Nf6 38.Kh4 Kf7 39.Nd4 Ra5 40.Nb3 Ra7 41.Nd4 Ra5 42.Nc6 Ra4= 43.Rd1 h6 44.Nd4 Ra5 45.Ra1 Kf8 46.Nb3 ½–½. Thielemann,Joachim (2045) – Skrondal,Inge Sandstad, Kiel op, 2002.

6.Bc4 Be6 7.Be6 fe6 8.0–0 Nf6 9.d3 0–0= 10.Nbd2 Qe7 11.d4 ed4 12.Nd4 (12.ed4 Bb4=) 12...e5 Black intends e4 13.Nf5 (13.Nc6 bc6 14.Nb3 Bb6+=) 13...Qe6–/+ 14.Ng3 Ng4 (14...d5 15.e4–/+) 15.Nf3 (better is 15.Nde4+=) 15...Rf7?? (15...Be3 16.fe3 Ne3 17.Ng5 Rf1 18.Qf1 Nf1 19.Ne6 Ng3 20.hg3=) 16.h3?? (16.Ng5 Qc4 17.Nf7 Kf7 18.Nf5+–) 16...e4?? 17.Nd4?? Nf2?? 18.Rf2 Rf2?? 19.Ne6 (19.Ne6 Be3 20.Kh2+–; 19.Kf2?! Rf8 20.Kg1 Qg6+/–) 1–0. Fournier,Frederic (1825) – alyechin (1825), rated blitz game (3/0), 2002.

6.Bc4 Be6 7.Be6 fe6 8.0–0 Nf6 9.d4 ed4 (9...Qb6 10.Bc3 Bb4 11.Bb4 Qb4 12.Ng5=) 10.ed4 (worse 10.Nd4 e5 11.Qe2 Qb6=+ (worse 11...Nd4 12.ed4 Bb6 13.de5 de5 14.Qe5 Kf7 15.Qg3+–)) 10...Bb6 11.Ng5 (11.Re1!? Qe7 12.Nc3+=) 11...Qe7= 12.Re1 e5 13.de5 Nd5?? (better 13...de5 14.Qe2 Rc8=) 14.Qd5 Qg5 (14...de5 15.Be5 Rd8+–) 15.ed6 Kd7 16.Qg5 (16.Qg5 Raf8 17.Qg7 Kc8 18.d7 Kb8 19.Be5 Ka8 20.Bd6+–) 1–0. DEFFM – GuestTFXS, freechess.org, 2018.

6.d4 Qa5 7.Qd2+/– Bb6 8.Bc3 Qd5 9.de5 Qd2 10.Nbd2 (10.Nfd2?! de5 (10...Ne5? 11.f4+–) 11.Na3 Nf6=) 10...d5 11.Bd3 Nge7 12.Rb1 0–0 13.0–0 Ng6 14.Rb5 Rd8 15.Rd1 Bc7 16.Bg6 hg6 17.Nb3 Ne7 (17...b6 18.Rbd5 (18.Rdd5?! Ba6 19.Nbd4 Bb5 20.Rb5 a6+=) 18...Rd5 19.Rd5+–) 18.h3 (18.Bb4 Nc6 19.Bd6 Bd6 20.ed6 Rd6+–) 18...b6 19.Nbd4 Bd7 20.Rb3 Rac8 21.Ra3 Bb8 22.Kf1 Rc4 23.Ke1 Nc6 24.Nc6 Bc6 25.Rd4 a5 26.Rb3 Bc7 27.Kd2 Re8 28.Rd3 Ba4 29.Rb1 (29.Rb2 Bc6+/–) 29...b5 30.a3 (30.Rd5?! b4 31.Bb2 Rc2 32.Ke1 Bc6=) 30...Rb8 31.Rd4 Rc5 32.Rb2 (32...Rc8 33.Rd3+/–) 1–0. marekt – Darlanio, ChessWorld.net, 2004.

6.Be2 Qb6 7.Qc1 Nf6=+ 8.Nc3 Bb4 (8...Qc7 9.0–0=+) 9.Rb1 (9.a3 Bc3 10.Bc3 Be6=) 9...0–0 10.0–0 Bf5 (10...Qc7 11.Nb5 Qe7 12.a3=) 11.a3 Ba5 (11...Bc5 12.Nh4 Be6 13.f4=+) 12.d3 (12.Bd3 Bd3 13.cd3 Qc7=) 12...Rac8 (12...Qc7 13.Nb5 Qd7 14.e4=) 13.Nd2 (13.e4 Nd4=) 13...Qd8 (13...Qc7 14.f4=+) 14.Nc4 Bc3 (14...d5 15.Na5 Qa5 16.Ba1=+) 15.Bc3= Qc7 16.Qb2 Nd5 17.Bd2 b6 18.e4 b5 19.Qb5 (19.ef5?! Nd4 20.Ba5 Qc6=+) 19...Nd4 (19...Nf4 20.Bf3 Nd4 21.Qa5 Qa5 22.Ba5=) 20.Qd5+= Ne2 21.Kh1 Be6 22.Qd6 ½–½. Poschmann,Hans – Hjortstam,Kurt, corr or01–001 E–mail, 2001.

6.Be2 Qb6 7.Qc1 Nf6 8.d3 0–0 9.0–0 Bd7 10.Nc3 Qa5 11.Nd2 Bb4 12.Nb3 Qd8 13.a3 Bc3 14.Bc3 d5 Black prepares e4 15.Bf3 Re8 Black plans e4 16.Qb2 b6 17.Rac1 Rc8 18.Bd2 e4 19.Be2 Ne5 20.Bc3 Qc7 21.Be5 Re5 22.c4 ed3 23.Bd3 Qd6 24.cd5 Rc1 25.Rc1 Rd5 26.Be2 h6 27.Bf3 Rb5 28.Be2 Ng4 29.g3 Rh5 30.Rd1 Rd5 31.Rd5 Qd5 32.Qd4 Qh5 (worse 32...Qb3 33.Qd7 Qb1 34.Bf1+–) 33.h4 Qf5 34.Bg4 Qg4 35.Qg4 Bg4 36.Kf1 Kf8 37.Ke1 Ke7 38.Kd2 Kd6 39.Nd4 Kc5 40.Kc3 a5 41.Nb3 Kd5 42.Nd4 Ke4 43.Kc4 Bd7 44.Kc3 g5 45.hg5 hg5 46.Kc4 g4 47.Kc3 b5 48.Kc2 Be6 49.Kc3 (49.Nb5? Kf3–+) 49...Ba2 50.Kb2 (50.Kd2 Bc4=+) 50...Bc4 51.Kc3 Be6 52.Kd2 (52.Nb5? Kf3–+) 52...b4 53.ab4 ab4 54.Kc2 Bc4 55.Kd2 f6 56.Kc2 Bg8 57.Kd2 Kd5 58.Kc2 Kc4 59.f3 (59.Ne2!?–/+) 59...gf3–+ 60.Nf3 b3 61.Kb2 Kd3 62.Nh2?? (better 62.Nd4 Ke3 63.Nf5 (63.Nb3?? Bb3 64.Kb3 Kf3–+) 63...Ke4 64.Nd6 Ke5 65.Nb5–+) 62...Be6 63.Nf3 Ke3 64.Nh4 Kf2 65.g4 Kg3 66.Nf5 (66.Ng6 Kg4 67.Nf8–+) 66...Bf5 67.gf5 Kf4 68.Kb3 (68.Ka3 Kg4 69.Kb4 b2 70.Kc4 b1Q 71.Kc3 Qf5 72.Kb4 Qh7 73.Kb3 Qg7 74.Kc4 Qf8 75.Kc3 Qc5 76.Kb3 f5 77.Kb2 f4 78.Ka1 Qc3 79.Kb1 f3 80.Ka2 f2 81.Kb1 f1Q 82.Ka2 Qfa1) 68...Kf5 69.Kc3 (69.Ka3 Kg4 70.Kb3 f5 71.Kc4 f4 72.Kc3 f3 73.Kb2 f2 74.Kc2 Kf5 75.Kd3 f1Q 76.Kc3 Qf3 77.Kc2 Ke4 78.Kd2 Qd3 79.Kc1 Qc3 80.Kb1 Qb4 81.Kc2 Ke3 82.Kc1 Kd3 83.Kd1 Qd2) 69...Kg4 70.Kd3 (70.Kd2 Kg3 71.Kc3 f5 72.Kb3 f4 73.Kb4 f3 74.Kc5 Kg2 75.Kc6 Kh3 76.Kc7 f2 77.Kd6 f1Q 78.Kc7 Qd3 79.Kc6 Qe4 80.Kb5 Qe5 81.Kc4 Qc7 82.Kd4 Qg7 83.Ke4 Kg3 84.Ke3 Qg6 85.Kd4 Kh2 86.Ke5 Qg5 87.Ke6 Qg3 88.Ke7 Qf4 89.Kd7 Qd2 90.Kc7 Qc1 91.Kd6 Kg2 92.Kd7 Qd2 93.Ke8 Qe2 94.Kd8 Qf3 95.Kc7 Qb3 96.Kc8 Qf7 97.Kd8 Kf3 98.Kc8 Ke4 99.Kd8 Kd5 100.Kc8 Kc6 101.Kd8 Qd7) 70...Kf3 71.Kd2 (71.Kc3 f5 72.Kd4 f4 73.Ke5 Kg4 74.Kd5 f3 75.Ke5 Kg3 76.Ke6 Kf4 77.Kf7 Ke3 78.Ke6 f2 79.Kd5 f1Q 80.Kc6 Kf2 81.Kd6 Kg2 82.Ke7 Qe2 83.Kd7 Qd3 84.Kc7 Qd4 85.Kc6 Kg1 86.Kc7 Qf6 87.Kb8 Qf4 88.Kb7 Qf3 89.Kb6 Qf2 90.Kc6 Qc2 91.Kd5 Qd3 92.Kc6 Qe4 93.Kd7 Kg2 94.Kd6 Kf3 95.Kc7 Qf4 96.Kd7 Qc4 97.Kd8 Qe2 98.Kd7 Ke4 99.Kc6 Qg2 100.Kc5 Qd2 101.Kc6 Ke5 102.Kc5 Qa5 103.Kc4 Ke4 104.Kb3 Kd3 105.Kb2 Qb5 106.Ka3 Kc3 107.Ka2 Qb2) 71...f5 72.Ke1 (72.Kc2 f4 73.Kd3 Kg2 74.Ke4 f3 75.Kd5 f2 76.Kd6 f1Q 77.Kd5 Qb5 78.Kd6 Kf1 79.Ke7 Qb8 80.Ke6 Qh2 81.Kd5 Qf4 82.Ke6 Qc4 83.Kd6 Qe4 84.Kc5 Qc2 85.Kd4 Qf5 86.Kc4 Qe6 87.Kd4 Qg4 88.Kc5 Kf2 89.Kd6 Ke3 90.Kc6 Qd4 91.Kc7 Qe4 92.Kb6 Qe6 93.Kc5 Kd3 94.Kb5 Qd6 95.Ka4 Kc4 96.Ka5 Qf6 97.Ka4 Qa6) 72…Kg2 (72...Kg2 73.Ke2 f4 74.Kd2 f3 75.Kc3 f2 76.Kd4 f1Q 77.Kd5 Qf7 78.Kc5 Qf2 79.Kb5 Qf3 80.Ka4 Qh5 81.Kb4 Qh1 82.Kc4 Qh4 83.Kb5 Qf4 84.Kc5 Qf6 85.Kd5 Qg5 86.Kc6 Kh3 87.Kc7 Qg6 88.Kd7 Qf7 89.Kc6 Qf3 90.Kb5 Qd5 91.Kb4 Kg4 92.Kc3 Kf5 93.Kb4 Ke4 94.Kc3 Qd3 95.Kb2 Qb5 96.Kc2 Kd4 97.Kd2 Qb2 98.Kd1 Kd3 99.Ke1 Qe2) 0–1. Svensek,M (2010) – Unuk,Laura (2245), 28th TCh–SLO (8), 2018.

6.Be2 Qb6 7.Bc3 Nf6 8.d4 Bb4 9.0–0 Be6 10.a3 Bc3 11.Nc3 Qa5 12.Nb5 Rd8 13.c4 Bg4 14.Nd2 Be2 15.Qe2 a6 16.a4 Ne7 17.Na3 Qa4 18.Nb5 Qc2 19.Nc7 Kd7 20.de5 de5 21.Nd5 Ned5 22.cd5 Nd5 23.Rfc1 Qf5 24.Nc4 e4 25.Qb2 Ke8 26.Qg7 (26.Qb7!? Qd7 27.Qa6+=) 26...Qf6= 27.Qf6 Nf6 28.Na5 b5 29.Rc6 Nd5 30.Ra6 Nc7 31.Ra7 Kd7 32.Rc1 (32...Rc8 33.Rb7+/–) 1–0. Darlanio – Klaus Behrmann, ChessWorld.net, 2004.

6.Be2 Nge7 7.0–0 0–0 8.d4 (8.Nc3 Qa5 (8...Bb4 9.a3 Bc3 10.Bc3 Qc7 11.d4 Be6 12.Bb2 f6 13.Rb1=; 8...Be6 9.Ne4 Bb6 10.Ba3 Bc7 11.Neg5 Bg4 12.h3 Bd7 13.Qb1=; 8...Bb6 9.Rb1 d5 10.Na4 Bc7 11.Nc3 Bf5 12.Ba1 Rb8 13.Bb2+=) 9.a3 d5 10.Ne5 Ne5 11.d4 Bd6 12.Nb5 Nc4 13.Bc4+=) 8...ed4 (8...Qb6 9.Bc3 Bb4 10.d5 Nd8 11.Qd2 Bc5 12.Ba5 Qb2 13.Nc3=) 9.ed4 Bb4 (9...Bb6 10.c4 d5 11.c5 Bc7 12.Re1 Re8 13.Nbd2=) 10.a3 Ba5 11.c4 (11.d5 Ne5 12.c4 Nf3 13.Bf3=) 11...d5 12.Nbd2 Bc7 (12...Re8 13.Rc1=) 13.Rc1 (13.Re1+=) 13...Be6 14.cd5 Bd5 15.Bd3 Bf4 16.Rb1 Qd7 17.Bc4 (17.Re1!?=) 17...Rad8 18.Bd5 Qd5 19.Nb3 Rd6 (19...Nf5 20.g3 Bd6 21.Re1+=) 20.Bc1 Bc1 21.Rc1 b6 22.Rc3 Rfd8 23.Rd3 (23.Qd3 Nf5+=) 23...Ng6 24.Re1 Nf4 25.Rd2 Na5 (25...h6+=) 26.Rb2? (better is 26.Na5 Qa5 27.a4=) 26...Nc4–/+ 27.Ra2 Rg6 28.g3 Nh3 29.Kf1?? (better is 29.Kg2 Ng5 30.h4–/+) 29...Rf6–+ 30.Qe2 (30.Rae2 g5 31.Re4–+) 30...h6 (30...Rf3?? 31.Qe8 Re8 32.Re8; 30...Qf3?? 31.Qe8 Re8 32.Re8) 31.Qe7 (31.Nbd2 Nd2 32.Rd2 Rf3 33.Qe5 Qe5 34.Re5 Ra3 35.d5–+) 31...Rf3 32.Qb4 (32.Nc1 Rc3 33.Qe4 Rc1 34.Qd5 Re1 35.Ke1 Rd5 36.Ke2–+) 32...Rb3! (32...Rb3 33.Qb3 Qh1 34.Ke2 Re8 35.Kd3 Re1 36.Kc4 Qc6 37.Kd3 Qf3 38.Kc4 b5 39.Qb5 Rc1 40.Kb4 Rb1 41.Kc4 Rb5 42.Kb5 Qd5 43.Ka6 Qa2–+) 0–1. pzn2pawn (1850) – recile (1800), redhotpawn.com, 2016.

6.Be2 Nge7 7.0–0 Qb6 A) 8.Qc1 Bg4 (8...0–0 9.Nc3 Qa5 10.Ne4 Bf5 11.Nc5 Qc5 12.c4 e4 13.Qc3=; 8...Be6 9.Nc3 0–0 10.Na4 Qc7 11.Nc5 dc5 12.Ng5 Bf5 13.f4=; 8...Bf5 9.Rd1 Bb4 10.a3 Ba5 11.c4 0–0 12.d4 Ng6 13.Nc3=) 9.d4 ed4 10.Nd4 Be2 11.Ne2 0–0 12.Rd1 Nf5 13.Rd5=; B) 8.Ba3 Qa5 (8...Bf5 9.Bc5 dc5 10.Nc3 0–0 11.Rb1 Qc7 12.e4 Be6 13.Ng5=; 8...Bg4 9.Bc5 dc5 10.Nc3 0–0 11.Rb1 Qc7 12.Ng5 Bf5 13.f4=; 8...0–0 9.Bc5 dc5 10.Nc3 Bf5 11.Rb1 Qc7 12.e4 Be6 13.Ng5=) 9.Bc5 dc5 10.Nc3 0–0 11.Rb1 a6 12.a4 b6 13.Ng5=; C) 8.Bc3 Nd5 (8...Nf5 9.a3 h6 10.g4 e4 11.gf5 ef3 12.Bf3 Qd8 13.d4+=; 8...Bg4 9.a4 Nd5 10.d4 ed4 11.Nd4 Nc3 12.Nc3 Be6 13.Rb1+=) 9.d4 Nc3 10.Nc3 ed4 11.Nd5 Qa5 12.ed4 Bd4 13.Nd4=.

6.Be2 Nge7 7.0–0 Nf5 A) 8.e4 Nh4 (8...Qb6 9.Ba3 Nfd4 10.Nd4 Nd4 11.Bc4 0–0 12.c3 Ne6 13.d3=) 9.Nc3 Nf3 10.Bf3 0–0 11.Rb1 Qa5 12.Bg4 b5 13.Bc8+=; B) 8.Bc3 e4 (8...Qf6 9.Bb2 0–0 10.Nc3 Qg6 11.Na4 Bb4 12.a3 Ba5 13.Bd3+=; 8...Qb6 9.a3 h6 10.g4 e4 11.gf5 ef3 12.Bf3 Qd8 13.d4+=) 9.Ne1 d5 10.Bb2 d4 11.ed4 Ncd4 12.c3 Ne2 13.Qe2+=; C) 8.Nc3 0–0 9.a3 Re8 10.Bc4 e4 11.Ne1 Be6 12.Be6 Re6 13.Ne4=.

6.Be2 f5 7.d4 (7.a3 Bb6=) 7...Bb4 8.c3 Ba5 9.de5 (9.0–0 Nf6=) 9...de5 10.Qd8 (10.0–0 Nf6=) 10...Bd8 11.0–0 (11.c4 Bf6=) 11...Nf6 (11...Bf6 12.Rd1=) 12.Bb5 (12.c4 e4 13.Nd4 Be7=) 12...Bd7 (12...e4!? 13.Ne5 Bd7=) 13.Bc6+= Bc6 (13...bc6 14.Ne5 Rb8 15.Ba3+=) 14.Ne5 Be4 (14...Bc7 15.Nc6 bc6 16.Nd2+/–) 15.Nd2 (15.f3 Bc6+/–) 15...Bc7+= 16.Ne4 (16.c4 Rc8+=) 16...Ne4 (16...fe4 17.c4+=) 17.c4+/– 0–0 18.Rad1 Rad8 (18...Rfd8 19.Nf3+/–) 19.Nf3 g5 (19...a6 20.Bd4+/–) 20.Nd4 (20.Rd5 Rd5 21.cd5 Rd8+/–) 20...Rde8 (20...Rf7 21.Ne6 Re8 22.Nc7 Rc7 23.f3+/–) 21.Nb5 Bb8 22.Rd7 Rf7 23.Rfd1 a6 24.Nc3 Nc3 25.Bc3 f4 26.ef4 Bf4 27.g3 Bb8 28.Rf7 Kf7+/– 29.Rd7 Re7 30.Re7 Ke7 31.Kg2 Kd6 32.Bd4 b5 33.cb5+– ab5 34.Be3 g4? 35.Bf4 (35...Kd5 36.Bb8+–) 1–0. shoulders – WoodPusher83, ChessWorld.net, 2007.

6.Bb5 Nf6

7.0–0 0–0 8.d4 ed4 9.ed4 Bb6 10.Qd3 d5 11.c4 dc4 12.Bc4 Bg4 13.Nbd2 Nd5 14.Rfe1 Be6 15.Bb3 Ba5 16.Bc2 g6 17.Bb3 Re8 18.Re4 Re7 19.Qe2 Bc3 20.Nf1 Na5 21.Bd5 ½–½. Grott,Peter – Weingarz,Wilfried, DESC, 2003.

7.0–0 0–0 8.d4 ed4 9.ed4 Bb6 10.d5 Nb4 11.c4 Bf5 12.Ne1 Ne4 13.Nc3 Nc5 14.Na4 Na4 15.Ba4 Rc8 16.Qb3 Qh4 17.Rc1 Na6 18.Qc3 Qg4 19.Bd1 Qg6 20.Bh5 ½–½. Malmstroem,Jan – Hjortstam,Kurt, email 4AMM–F, 1998.

7.0–0 Bg4 8.Be2 0–0 9.c4 Qb6 10.Ba3 Ba3 11.Na3 Bf3 12.Bf3 e4 13.Be2 Qc5 14.Nb5 Rad8 15.Nc3 d5 16.cd5 Nb4 17.Bc4 b5 18.Nb5 Nbd5 19.Nd4 Nb6 20.Nc6 1–0. Geisensetter – Braskin, corr DDR 1987.

6.Bb5 Bg4

7.0–0 e4 8.Bg7?? (8.h3 Bf3 9.gf3 Qg5 10.Kh2+=) 8...Bf3–+ 9.gf3 Qg5 10.Kh1 Qg7 11.Nc3 a6 12.Bc6 bc6 13.Ne4 Ba3 14.c4 Kd7 (14...Ne7 15.Qb3 f5 16.Rg1=+) 15.d4 (15.Qb3 Qb2 16.Rab1 Qb3 17.Rb3 f5=) 15...Rb8= 16.Qa4 Bb2 17.Rab1 (17.Qa6 Ne7 (17...Ba1?? 18.Qa7 Ke6 19.Qb8+–) 18.Qa7 Ke6+/–) 17...Nf6 18.Rg1 Qh6 19.Nd2? (better is 19.d5!? Ke7 A) < 20.dc6 Be5 21.Ng3 Bg3 22.fg3 Rb1 (22...Qe3?? 23.Rbe1 Qe6 24.Qa6+–) 23.Rb1 Qe3=+; B) 20.Qc6=) 19...Bd4–/+ 20.Qa6 Bb2 (20...Rbc8 21.Qa5 Bc5 22.Nb3–/+) 21.Nb3=+ Bc3 22.Nc5 dc5 23.Qa7? (23.Rgd1 Bd4 24.Rb7 Kd6 25.ed4 cd4 26.Qa3 c5 27.Rd4 Ke6 28.Rd5 Nd5 29.Qa6 Kf5 30.Qh6 Rb7 31.Qh5 Kf6 32.Qd5 Rb1 33.Kg2 Rg8 34.Kh3+–) 23...Ke6 24.Rb8 Be5 25.f4 Bb8 26.Qc5 Re8 27.Rd1 Ne4?? 28.f5?? Kf6–+ 29.Qd4 Be5 (30.Qd6 Bd6 31.f4 Qh3 32.Rd6 Nd6 33.Kg1 Qe3 34.Kg2 Rg8 35.Kf1 Rg1) 0–1. Wolfram – Ziolkowski, corr 3GMM–47, 1996.

7.0–0 Qf6 =.

7.Nc3 Nf6 8.h3 Bh5 9.0–0 (9.Na4 Bb4=) 9...e4 10.g4 Bg6 11.Nh4 (11.d4 Bb4 12.d5 Qc7+=) 11...a6=+ 12.Bc6 (12.Bc4 d5 13.Be2 d4 14.Ng6 A) < 14...dc3 A1) 15.Bc3? hg6 (< 15...fg6 16.f3–+) 16.Rb1 b5–+; A2) 15.Nh8 cb2 16.Rb1+/–; B) 14...hg6 15.ed4 Bd4–/+) 12...bc6–/+ 13.f4 (13.Ng6 hg6 (< 13...fg6 14.g5+=) 14.g5 Nh7 (14...Rh3?! 15.gf6 Qf6 16.Qg4=) 15.Ne4 Ng5 16.Bg7 Rh3 17.Nf6 Ke7+/–) 13...Rb8 14.Rb1 0–0 (14...d5!?–/+) 15.f5 (15.Ng6 fg6 16.g5 Nd5 17.Ne4 Bb6+=) 15...Nd5= 16.Ng2 Rb2 17.Rb2 Nc3 18.dc3 Re8?? (18...Ba3 19.Rb3 Bc5+–) 19.fg6+– fg6 20.Qe1 (20.Rb7 Rf8+–) 20...Qc7 (20...Rf8 21.Rf8 Qf8 22.Qf1+–) 21.c4 Ba3 22.Rb3 Bc5 23.Qb1 Qa7 24.Rb7 Be3 25.Kh1 Qc5 26.Rb8 Qe5 27.Qb7 Bf2 28.Rf2 Qa1 29.Kh2 Qe5 30.Rf4 (30...Qf4 31.Nf4 Rb8 32.Qb8 Kf7 33.Qc7 Ke8 34.Qc6 Ke7 35.Qb7 Ke8 36.Nd5 Kd8 37.Qc7 Ke8 38.Qe7) 1–0. Hakulinen – Ziolkowski, corr 3GMM–47, 1996.

7.d3 Nge7 (7...Qa5 8.Nc3=+) 8.0–0= 0–0 9.Nbd2 a6 10.Ba4 b5 11.Bb3 Na5 12.h3 Nb3 13.ab3 Bd7 (13...Bh5 14.Ne4 f6 15.Rc1=) 14.Ne4+= Bb6 (14...f6 15.d4 Bb4 16.c3+=) 15.Nd6+– Bh3 16.Be5 Bg4 (16...f6 17.gh3 fe5+–) 17.Ne4 (17.c4!?+–) 17...Ng6+= 18.Bg3 (18.Bd4 Bd4 19.ed4 Re8+=) 18...f6 (18...f5!? 19.Ned2 Ba5=) 19.d4 h5 20.Qd3 Bf3 21.gf3 h4 (21...f5 22.Nd2+=) 22.Bh2 (22.Bd6 f5 23.Bf8 fe4 24.Qe4 Nf8+–) 22...f5+= 23.Nd2 h3 24.Kh1 Bc7? (better 24...Nh4!?+=) 25.Rg1+– Nh4 (25...Ne7+–) 26.c4 (26.Bc7 Qc7 27.Rg3 Rf6+–) 26...Ng2? (26...f4 27.Rg4 Rb8 28.Ra6 fe3 29.Qe3 Bh2 30.Qe6 Rf7 31.Kh2 bc4 32.bc4+–) 27.cb5 (better 27.Bc7 Qc7 28.cb5+–) 27...Bh2+– 28.Kh2 Qh4 29.Raf1 (29.ba6 Qf2 30.Rgf1 Qe3 31.Qe3 Ne3+–) 29...f4 (29...ab5 30.f4 Qh5 31.d5+–) 30.Qg6 (better 30.b6!? fe3 31.fe3+–) 30...fe3+= 31.fe3 Rf6? (better 31...ab5 32.Qe6 Kh8 33.Qh3 Qh3 34.Kh3 Ne3+=) 32.Qe4+– Qe4 33.fe4 (33.Ne4?! Rb6 34.Rc1 ab5+–) 33...Rf1 34.Rf1 (better 34.Nf1!? ab5 35.Kh3+–) 34...ab5 35.Kh3 Ne3 36.Rf3 Nc2 (36...Ra2!? 37.Re3 Rd2+–) 37.d5+– Ra2 38.Rc3 Nd4 (38...Ne1 39.Nf1+–) 39.Rd3 Nb3 1–0. UncleBulgaria (2440) – webweaver (1905), ChessWorld.net, 2014.

7.h3 Be6 8.0–0 =.

6.c4 Nf6

7.a3 Bg4 8.h3 Bh5 9.g4 Bg6 10.Nc3 e4! Hecht – B Schwarz.

7.Be2 0–0 8.0–0 a6 9.d4 ed4 10.ed4 Ba7 11.d5 Nb8 12.Bd3 Bg4 13.Nbd2 Nbd7 14.h3 Nc5 15.Bh7 Nh7 16.hg4 Nd3 17.Bd4 Bd4 18.Nd4 Rc8 19.Qe2 Ne5 20.Nf5 Re8 21.Ne3 Nf6 22.g5 Nfd7 23.f4 Ng4 24.Qg4 Re3 25.Rab1 Nc5 26.f5 Qe8 27.g6 Ne4 28.Ne4 Qe4 29.Qh5 Qd4 30.Qh7 Kf8 31.Qh8 Ke7 32.f6 Kd7 33.Rb7 Rc7 34.Rc7 Kc7 35.Kh1 Re4 36.g3 Qc4 37.Rb1 Re8 38.Qe8 1–0. Kreuzer – Fischbad, 1983.

7.Be2 0–0 8.0–0 e4 9.Nd4 Bd4 10.Bd4 Nd4 11.ed4 Qb6 12.d5 Qd4 13.Nc3 Bd7 14.Rc1 Rac8 15.d3 e3 16.fe3 Qe3 17.Kh1 Rfe8 18.Rf3 Qh6 19.Rg3 b5 20.Rb1 a6 21.Qf1 Re7 22.Bf3 bc4 23.dc4 Rce8 24.Rd1 Kh8 25.Be2 Re2 26.Ne2 Bg4 27.Rf3 Bf3 28.Qf3 Re3 29.Qf1 Qh5 30.Nf4 Qe5 31.c5 dc5 32.d6 g5 33.Nh5 Nd7 (33...Nh5?? 34.d7 Nf4 35.d8Q Kg7 36.Qd6+–) 34.h3 (Better is 34.Ng3!?=) 34...f5–/+ 35.Qf2 f4 36.h4 h6 37.Qd2?? (37.hg5 hg5 38.Kg1 Kh7–+) 37...c4 (37...gh4 38.Qd5 Re1 39.Kh2 Rd1 40.Qd1 f3 41.Kg1 Qh5 42.Qf3 Qf3 43.gf3–+) 38.Qd5?? (Better is 38.Rf1–+) 38...Re1 39.Re1 (39.Kh2 Qd5 40.Rd5–+) 39...Qd5 40.Re8 Qg8 (41.Re7 Qg6 42.Rd7 Qh5–+) 0–1. Kratzer,Nikolaus – Stocker,Rupert (2245), Landesliga Sued, 2000.

7.Be2 0–0 8.0–0 e4 9.Ne1 d5 10.d4 ed3 (10...Be7 11.Nd2=+) 11.Nd3= Bb6 (11...Be7 12.cd5 Qd5 13.Nc3=) 12.cd5 (12.c5 Bc7=) 12...Nd5= 13.Nd2 Bf5 (better 13...Be6=) 14.e4+– 1–0. GuestKKMV – GuestHWWZ, freechess.org, 2017.

7.Be2 Qe7 8.0–0 h5 9.d4 Bb6 10.Nc3 e4 11.Nd2 Rh6 12.Nd5 Nd5 13.cd5 Nd8 14.Nc4 Bc7 15.f3 ef3 16.Rf3 Bg4 17.Rg3 f5 18.e4 f4 19.Rb3 Bd7 20.Qf1 g5 21.Re1 b5 22.e5 bc4 23.ed6 Qd6 24.Bc4 Kf7 25.Ba3 Qf6 26.d6 Be6 27.Be6 Ne6 28.dc7 Qd4 29.Kh1 Rc8 30.Bb2 Qa4 31.Qd3 Rc7 32.Qf5 Ke7 33.Qg5 1–0. Levermann – Vogler, 1986.

6.Bc4 Nf6

7.0–0 0–0 8.d3 (8.d4 ed4 9.ed4 d5=) 8...Be6 (8...Bg4 9.Nbd2+=) 9.Be6 fe6 10.Nbd2 Nd5 11.e4 (11.Rb1 Rc8=) 11...Nf4+= 12.g3? (better is 12.Nb3+=) 12...Nh3–+ 13.Kg2 Ng5 (better is 13...Nf2!? 14.Rf2 Bf2 15.Kf2 Qb6 16.Kg2 Qb2–+) 14.Ng5+= Qg5 15.Nf3 Qf6–/+ 16.Rb1 b6 17.Nh4 Rf7 18.f4 Qh6 19.Bc1 ef4 20.Bf4 Qf6 21.Bd2 Qd4 22.Qe2 Raf8–/+ 23.Rf7 Rf7 24.Rf1 Rf1 25.Qf1 Ne5 26.Nf3 Nf3 27.Qf3 Qb2 28.Be3?? Qc2–+ 29.Kh3 Qd3 30.Qf4 Qe3 0–1. Fournier,Frederic (2040) – maurib (1895), Ajedrez21 ajedrez21.com, 2005.

7.0–0 e4 8.Ne1 +=.

7.d4 Qb6. Schmit.

7.d4 ed4 8.ed4 Bb4 9.c3 d5 10.Bb5 Bd6 11.Qe2 Qe7 12.Qe7 Be7 13.Ne5 Bd7 14.Nd7 Nd7 15.0–0 0–0 16.Re1 Bd6 17.Nd2 Rac8 18.Rab1 a6 19.Bd3 Na5 20.Ba1 b5 21.Bb5 ab5 22.Rb5 Nc4 23.Rd5 Nd2 24.Rd6 Nf6 25.Rc1 Rc4 26.f3 Ra4 27.Rc2 Nc4 28.Rc6 Nd5 29.Rc5 Nde3 30.Re2 f5 31.Rb5 f4 32.Rb3 Rfa8 33.h3 Ra2 34.Rb8 Rb8 35.Ra2 Rb1 36.Kf2 Nd1 37.Ke2 Nde3 38.Kf2 Rf1 39.Ke2 Rg1 40.Kd3 Nd6 41.g4 Ndc4 42.Ke4 g5 43.h4 h6 44.hg5 hg5 45.Ra8 Kf7 46.Ra7 Ke6 47.Ra6 Ke7 48.Ra7 Kd6 49.Ra6 Kc7 50.Ra2 Kd6 51.Ra6 Kc7 52.Ra2 Rd1 53.Ra7 Kb6 54.Ra2 Nd2 55.Ke5 Nf3 56.Ke6 Ng4 57.Kf5 Ne3 58.Ke6 g4 59.Rb2 Ka5 60.Ra2 Kb5 61.Rb2 Kc4 62.Rb4 Kd3 63.d5 Ng5 64.Kf6 Nd5 65.Kg5 Nb4 66.Kg4 Nd5 0–1. Machete99 – guest1084, ICC, 2002.

7.d4 ed4 8.ed4 Bb4 9.Nbd2 d5 10.Bd3 0–0 11.0–0 Bg4 12.c3 Bd6 13.Re1 Qc7 14.h3 Bd7 15.Nf1 Rfe8=+ 16.Qc2 Na5 17.Ne5 Be6 18.Bc1 Rac8 19.Bd2 Nc6 20.Nc6 Qc6 21.Rab1 Qc7 22.Qb3 b6 23.Qc2 h6 24.Rbc1 Re7 25.Re2 Rce8 26.Rce1 Bd7 27.Re7= Re7 28.Re7 Be7 29.Ne3 Bd6 30.Nf5 Bh2 31.Kh1 Bf4 32.Bf4 Qf4 33.Ne3 Qd6 34.Be2 Qa3 35.Bf3 Be6 36.Kg1 b5 37.Qd2 a6 38.Kf1 Qd6 39.Ke2 Qc6 40.a3 Nh7 41.h4 f5 42.g3 Nf6–/+ 43.Qb2 Kf7 44.Qb4 Qd7 45.Qc5 g5 46.hg5= hg5 47.Nc2 f4 48.gf4 gf4 49.Ne1 Bf5 ½–½. brain boardonly – Tihomir Glowatzky, ChessWorld.net, 2005.

7.d4 ed4 8.Nd4 Bd4 9.ed4 d5 +=.

6.d4 Bb4

7.c3 Ba5

8.Bb5 Qb6 9.Qb3 (9.Na3 Kf8 10.0–0 a6 11.Bc6 Qc6 12.de5 Bc7 13.ed6 Qd6+–) 9...ed4 (9...a6 10.Bd3=) 10.Nd4+= Bd7 11.Nd2 Nf6 (11...Nd4 12.Bd7 Kd7 13.cd4 Bd2 14.Kd2 Qb3 15.ab3+=) 12.Nc4+– Qc7 13.Rd1 (13.Bc6!? bc6 14.Qa3+–) 13...d5= 14.Na5 Na5 15.Bd7 (15.Qb4!? Nc6 16.Bc6 bc6 17.Ba3+=) 15...Qd7=+ 16.Qb5 (16.Qb4 Nc4=+) 16...Nc4 17.Qd7 Kd7 18.Bc1 Rac8 19.0–0 Nb6 (19...Rhe8 20.Rfe1–/+) 20.Ne2 Rhd8 21.Bb2 (21.f3 Ke7=+) 21...Na4 (21...Nc4 22.Bc1–/+) 22.Ba1 Ke8 23.f3 Kf8 (23...Nb6 24.Nd4=+) 24.Rd4 Nb6 25.Rb1 (25.g4 h6=+) 25…Rd7 ½–½. Djurisic,Dusan (1960) – Markovic,Aleksandar (1835), XXIII Belgrade Trophy, 2010.

8.Bb5 ed4 9.Nd4 (9.ed4 a6 10.Be2 Nf6=) 9...Nge7 10.0–0 0–0 11.Qh5 (11.Nd2 Nd4 12.cd4 Qb6–/+) 11...Ne5= 12.f4 (12.Qd1 Bd7=) 12...Ng4=+ 13.e4 a6 14.Ba4 d5 15.e5 (15.Nd2 de4 16.Ne4–/+) 15...Ne3 (better 15...g6!? 16.Qh4 Qb6–+) 16.Rf2=+ Nc4 (16...Bg4 17.Qh4 Bb6 18.Na3=+) 17.Qe2 (17.Bc1 Qc7=) 17...Nf5 (17...Qb6 18.g3–/+) 18.Bb3 (18.Na3 Nb2 19.Qb2 Be6=+) 18...b5 (18...Qc7!?=+) 19.Nc6= Qc7 20.Na5 Qa5 21.a4 Be6 (21...Nb2 22.Qb2 Ne3 23.Rf3=) 22.ab5 Qb5 23.Bc4 dc4 24.g4 (24.Na3 Qb3=) 24...Ne7 (24...Nh4 25.Ba3 Qa5 A) 26.Bf8?? Qa1 27.Rf1 Rf8–+ (27...Kf8?! 28.Qf2 Bg4 29.Qh4–+); B) 26.Bb2=+) 25.f5 (25.Ba3 Rfe8+=) 25...Bd5= 26.f6 (26.Ba3!? Rfe8 27.Nd2=) 26...Ng6=+ 27.Ba3 (better 27.Na3!? Qc5 28.Bc1 gf6 29.Be3–/+ (29.ef6?? Rfe8 30.Qd1 Rad8–+)) 27...Rfe8–+ 28.Bd6 Rad8 29.Na3 Qc6 30.Qd2 (30.Qd1 Ne5 31.Be5 Re5–+) 30...Ne5 31.Be5 Re5 32.fg7? (32.Nc2 gf6 33.Nd4 Qb6–/+) 32...Rde8 (better 32...Qe6 33.Rg2 Re8–+) 33.Nc2 (33.Rd1 h5–+) 33...Qg6 34.Ne3? (better 34.h3 Qd3 35.Qd3 cd3 36.Nd4 Re1 37.Rf1–+) 34...Re3 35.Qd5 Re1 36.Rf1 Ra1 37.Ra1 Qg4 38.Kh1 Qh3 (better 38...Qe2–+) 39.Rf1?? (better 39.Qc6 Rd8 40.Qb7–+ (40.Qc4 Rd2 41.Qf7 Kf7 42.g8Q Kg8 43.Rg1 Kf7 44.Rg7 Kg7 45.Kg1 Qg2)) 39...a5 (39...Qf1) 40.Qc6 (40.Qf7) 40...Rd8 (40...Qf1) 41.Re1?? (better 41.Qc4 Qd7 42.Rf4–/+) 41...Qc3–+ 42.Re8 (42.Qe4–+) 42...Re8 43.Qe8 Kg7 44.Qb5 (44.Qe4–+) 44...Qf3 45.Kg1 Qe3 46.Kg2 (46.Kf1 c3 47.Qd5 Qf4 48.Ke1 Qd2 49.Qd2 cd2 50.Kd2–+) 46...c3 47.Qc4 h5 (47...Qd2 48.Kh3 c2 49.Qg4 Kf6 50.Qh4 Qg5 51.Qd4 Qe5 52.Qd8 Kg6 53.Qg8 Qg7 54.Qd8 Qh6 55.Kg2 Qg5 56.Qg5 Kg5 57.Kg3 a4 58.Kf2 a3 59.Ke3 c1Q 60.Ke4 a2 61.h4 Kh4 62.Ke5 a1Q 63.Kd5 Qa5 64.Ke4 Qcd2 65.Kf3 Qf5) 48.Qb5 Kg6 49.Qa6 f6 (49...Kh7 50.Qa5 Qe4 51.Kf2 Qf4 52.Kg2 c2–+) 50.Qc8 (50.Qc4–+) 50...Qe2 (50...Qe2 51.Kg3 Qg4 52.Qg4 hg4 53.Kg4 c2 54.h4 f5 55.Kf4 c1Q 56.Ke5 Qc5 57.Kf4 Qd4 58.Kf3 Kh5 59.Kg3 f4 60.Kf3 Qe3 61.Kg2 Qe2 62.Kh3 Qg4 63.Kh2 f3 64.Kh1 Qg2) 0–1. Krebbers,Wilfried (2110) – Arvola,Benjamin (2200), 20st Goch op, 2009.

8.Bb5 e4 9.d5 a6 10.Ba4 b5 11.dc6 ba4 (11...ef3!? 12.Bb3 fg2=) 12.Nfd2 Nf6 (12...Ne7 13.Ba3 0–0 14.Ne4 Nc6 15.0–0+=) 13.Qa4+– 0–0 14.Ne4 (better 14.c4!?+–) 14...Ne4= 15.Qe4 d5 (15...Re8 16.c7 Re4 17.cd8R Bd8 18.Nd2=) 16.Qf3 (16.Qd3 Qf6 17.Nd2 Qc6=) 16...Qg5 (16...Be6 17.Ba3 Re8 18.0–0=) 17.Ba3 (17.Nd2 d4 18.h4 Qb5–/+) 17...Re8= 18.0–0 (18.h4 Qe5 19.0–0 Bf5=) 18...Bc7 19.h3 Re4 (19...Qe5!? 20.Qf4 Qf4 21.ef4 Bf4=+) 20.Rd1+= Be6 21.Nd2 Rh4 22.Kf1 Re8? (22...d4 23.cd4 (23.ed4? Bd5 24.Kg1 Bf3 25.Nf3 Qh6 26.Nh4 Qh4–+) 23...Bg4 24.Qg4 (24.hg4?? Rh1 25.Ke2 Qb5 26.Nc4 Qc4 27.Rd3 Ra1–+) 24...Rg4 25.hg4 Qb5 26.Kg1+=) 23.Bc5 (better 23.Nb3+–) 23...Bf5= 24.Bd4?? (better 24.Qe2 Qg6 25.Nf3=) 24...Bd3–+ 25.Kg1 Re6 (25...Be4 26.c4 Bf3 27.Nf3 Qh6 28.Nh4 Qh4 29.cd5 Bd6–+) 26.g3? (better 26.Rdb1 Bb1 27.Rb1 Rc6 28.Rb7=) 26...Rh3–+ 27.Qg2?? (27.Rab1 Reh6 28.Rb7 Rh1 29.Qh1 Rh1 30.Kh1 Qh5 31.Kg2 Qd1 32.Rc7–+) 27...Qh5 28.g4 (28.Qf3 Qf3 (28...Rc6?! 29.Qh5 Rh5 30.Kg2–/+) 29.Nf3 Be4–+) 28...Qh6 (28...Bh2 29.Kh1 Qh4 30.Bg7 Bg3 31.Kg1 Bf2 32.Qf2 Rh1 33.Kg2 Qh3) 29.f3 (29.f4 Qh4 30.Nf3 Rf3 31.Rd3–+) 29…Rh2 (29...Rh2 30.f4 Rg2 31.Kg2 Qh4 32.Nf3 Be4 33.c4 Qg4 34.Kf2 Qf3 35.Ke1 Ba5 36.Bc3 Bc3 37.Rd2 Bd3 38.cd5 Re3; 29...Bh2 30.Kf2 Qh4 31.Qg3 Qg3) 0–1. Akgul,Emre Ramazan (1615) – Ertas,Deniz (1795), TCh–TUR 2nd League, 2017.

8.Bb5 e4 9.d5 a6 10.dc6 (10.Ba4 b5 11.dc6 ba4=) 10...ab5 11.Nd4 (11.Qd5 Qe7 12.Qb5 b6+=) 11...Qg5 12.cb7 Bb7 13.Qb3 Ba6 (13...Qg2 14.Rf1 Bc8 15.Ba3=+) 14.0–0 Nf6 15.a4 0–0 (15...b4 16.Rd1 bc3 17.Bc3+=) 16.ab5 Bc8 17.Ne2 Be6 18.c4 Nd7 (18...d5 19.c5 d4 20.Qa4 de3 21.Bf6 gf6 22.Qe4 ef2 23.Kh1=) 19.Nf4+– Rfc8 20.Rc1 Nc5 (20...Bg4 21.Qc2 Nc5 22.Nc3 Bc3 23.Bc3+–) 21.Qc2 (21.Qd1 Rd8+–) 21...Bf5 22.Rd1 (22.Qd1 Nd3 23.Nd3 ed3+–) 22...Nd3+= 23.Nd2 (23.Bc3!? Bb6 24.Ra8 Ra8 25.Nd5+=) 23...Nf4= 24.ef4 e3 25.Ne4 (25.fg5 Bc2 26.fe3 Bd1 27.Rd1 d5 28.cd5 Rc2–/+) 25...Qf4=+ 26.Ra5 Ra5 27.Qc3 f6 28.Nf6? (better 28.fe3!? Qe4 29.Qa5 Rc4 30.Ra1–+) 28...gf6–+ 29.fe3 Qg4 30.Rd6 Be4 (30...Rb5 31.Qf6 Rb2 32.Qb2 Qc4 33.h3–/+) 31.Rd2 Ra2 (better 31...Rb5! 32.Qf6 Rb2 33.Qb2 Rc4–+) 32.Qf6= Rb2 33.Qb2 (33.Rb2 Bd3 34.h3 Qc4+=) 33...Rc4 34.b6 (34.Qb3 Qe6 35.Qd1 Bg6 36.Rd8 Be8=) 34...Bb7 (34...Qg5 35.Qa3=+) 35.Rf2 (35.Rd8 Kf7 36.h3 Qe6+–) 35...Qd1= 36.Rf1 Qc2 37.Rf2 Qd1 (37...Qc1 38.Qc1 Rc1 39.Rf1=+) 38.Rf1= Qg4 39.Qf2 Qg7 40.Qf4?? (better 40.Rd1 Rc8 41.Qg3 Qg3 42.hg3=) 40...Rf4 (40...Qg2) 41.Rf4 (41.g3 Qb2 42.e4 Qd4 43.Kg2 Qe4 44.Rf3 Qf3 45.Kh3 Qf1) 41...Qa1 (41...Qa1 42.Rf1 Qa3–+; 41...Qg2) 0–1. Krebbers,Wilfried (2110) – Cicak,Slavko (2575), 20st Goch op, 2009.

8.Bb5 e4 9.d5 Qb6 10.Nd4 (worse 10.dc6 Qb5 11.cb7 Qb7–/+) 10...a6 11.Bc6 bc6 12.Nb3+=.

8.Nbd2 ed4 9.cd4 Bf5 10.d5 Nb4 (better is 10...Ne5+/–) 11.Bg7+– Nc2 12.Ke2 Qb6 (better is 12...Qd7 13.Rb1 Bb4+–) 13.Nd4 Bg4 14.f3 Bd2 (14...Na1 15.fg4 Qb4+–) 15.Qc2 Be3 16.Ke3 Rc8 17.Qb1 (17.Bh8 Rc2 18.fg4 Kf8+–) 17...Qd8 (17...Ne7 18.Bh8 f6 19.Qb6 ab6 20.fg4+–) 18.Qe4 Be6 19.Bb5 Ke7 20.Nf5 1–0. Trkn – Elkana_1 (1700), ICC, 2004.

8.Bd3 Nf6= 9.Nbd2 0–0 10.Qb3 Re8 11.Ng5 (11.d5 e4 12.dc6 bc6 13.Ng5 ed3 14.Qf7 Kh8 15.Qc4+=) 11...d5=+ 12.de5 Ne5 13.Bb5 Nfd7 14.h4 (14.Ngf3 a6 15.Ne5 Re5=+) 14...a6–/+ 15.Bd7 (15.Be2 h6 16.Ngf3 Nc5–/+) 15...Bd7 (15...Nd7?! 16.Qd5 Ne5 17.Qd8 Rd8 18.Ke2=; 15...Qd7?! 16.0–0–/+) 16.0–0 Bb5 17.Rfb1 (17.Rfd1 b6–/+) 17...h6 (17...b6 18.Ba3–/+) 18.Ngf3 Bd3 19.Re1 (19.Ne5 Bb1 20.Nf7 Kf7 21.Rb1 b5–/+) 19...Nc4 20.Rad1 Nb2 (20...b5 21.Ba3–+) 21.Qb2 Rc8 22.Qb7 Bc3 23.a4 Bc2 24.Rc1–/+ Rc7 25.Qa6 Bb2 26.Qb6 Bc1 27.Rc1 Re6 28.Qa5 Qc8 29.Nd4 Ra6 30.Qd5 Ba4 31.Rc4 Bd7 32.Rc7 Ra1 33.Kh2 Qc7 34.f4 Ra5 35.Qb3 Bg4 36.Nc4 Ra1 37.Ne5 Qe7 38.Kg3 Bh5 39.Nf5 Qf6 40.Qb8= Kh7 41.Nd7 Qf5 42.Nf8 Kg8 43.Ng6 Kh7 44.Nf8 Kh8 45.Ne6 Kh7 46.Nf8 ½–½. Registration (2365) – Dorky (2490), ICC, 2003.

8.d5 Nce7 =.

8.Nbd2 Nf6

9.Bd3 0–0

10.0–0 Re8

11.Qc2 Bg4 12.Ng5 h6 13.Nge4 Ne4 14.Be4 d5 15.Bh7 Kh8 16.f3 Bd7 17.Bd3 ed4 18.ed4 Qg5 19.f4 Qe7 20.Nf3 Qe3 21.Kh1 Qe6 22.Rae1 Qd6. Psion, 4 Min/Zug 1989.

11.Qc2 h6

12.Rad1 A) 12...Qe7 13.Ne4 (13.de5 de5 14.Qa4 Bg4 15.Bb5 Qc7 16.h3 Bh5 17.Ne4 Ne4+=; 13.Be2 e4 14.Ne1 d5 15.Qb3 Qc7 16.h3 Be6 17.Ba3 Rac8+=; 13.d5 Nd5 14.Nc4 Nf6 15.Nd6 e4 16.Ne8 Qe8 17.Be2 ef3–/+) 13...Ne4 14.Be4 ed4 15.Bc6 bc6 16.Nd4 Qc7 17.c4 Rb8=; B) 12...Be6 13.de5 (13.Qa4 Bg4 14.de5 de5 15.Bb5 Qc7 16.h3 Bh5 17.Ne4 Ne4+=; 13.Bb5 ed4 14.Nd4 Nd4 15.cd4 Re7 16.Qb1 Rc8 17.Bd3 Nd5=; 13.a3 ed4 14.cd4 Rc8 15.Qb1 Qe7 16.e4 d5 17.e5 Nh5+=) 13...de5 14.Bb5 Qc7 15.c4 Bd7 16.Ne4 Ne4 17.Qe4 Rad8=; C) 12...Bg4 13.de5 (13.a3 Bf3 14.gf3 ed4 15.cd4 Rc8 16.Qb3 Bd2 17.Rd2 Qa5=) 13...Ne5 14.Bf5 Bf5 15.Qf5 Qc8 16.Qc8 Rac8 17.c4 Bd2=.

12.Rfd1 A) 12...Qe7 13.Qa4 (13.Ne4 Ne4 14.Be4 ed4 15.Bc6 bc6 16.Nd4 Qc7 17.Rab1 Bg4=; 13.de5 de5 14.Qa4 Bg4 15.Bb5 Qc7 16.h3 Bh5 17.Rab1 e4+=; 13.Be2 e4 14.Ne1 d5 15.c4 Bc7 16.Qb3 Na5 17.Qc3 Qd6+=) 13...Bd7 14.de5 Ne5 15.Bb5 Nd3 16.Bd7 Nb2 17.Qa3 Nd7=; B) 12...ed4 13.ed4 (13.Nd4 Nd4 14.cd4 Bg4 15.f3 Rc8 16.Qb1 Be6 17.e4 d5=; 13.cd4 Nb4 14.Qb3 Nd3 15.Qd3 Be6 16.Rdc1 Qd7 17.e4 d5=) 13...Be6 14.a3 d5 15.Rab1 Rc8 16.Re1 Qc7 17.Re3 Ng4=; C) 12...Bg4 13.de5 Ne5 14.h3 Bh5 15.Bb5 Re7 16.Be2 Qc7 17.c4 Rae8=.

12.e4 ed4 13.cd4 Nb4 14.Qb3 Nd3 15.Qd3 Ne4 16.Ne4 Bf5 17.Nfd2 Bd2 –/+.

12.e4 d5 13.Ne5 (13.ed5 Nd5 14.Rfe1 ed4 15.Re8 Qe8 16.Re1 Be6 17.Nd4 Nd4+=; 13.de5 de4 14.Ne4 Ne4 15.Be4 Ne5 16.Ne5 Re5 17.Rae1 Re6=) 13...Ne5 14.de5 de4 15.Ne4 Ne4 16.Be4 Re5 17.Rae1 Re6 =.

12.e4 Bg4 13.d5 (13.h3 Bf3 14.Nf3 Rc8 15.Qb1 ed4 16.cd4 Nb4 17.d5 Nd3+=) 13...Ne7 14.Bb5 Bd7 (14...Rf8 15.h3 Bh5 16.Rab1 Qc7 17.Rfc1 Rfc8=) 15.Bd7 (15.Qa4 Bb5 16.Qb5 Rc8 17.Rab1 Bb6=) 15...Qd7 16.Nc4 (16.Rfb1 Bb6 17.a4 Qc7=) 16...Qc7 17.Nfd2 Bb6 18.Nb6 Qb6 19.Qb3 Qc7 20.a4 b6 21.Ba3 Rac8 22.Rfc1 Ng6 23.g3 Red8 24.f3 Kh8 25.Bb4 a5 26.Ba3 Kg8 27.Rab1 Nd7 28.Qb5 Ngf8 (28...Ne7 29.Kh1+=) 29.Qd3 Nf6 30.Qe3 Attacking the backward pawn on b6 30...N8d7 31.f4 (31.Rb5 Rb8+=) 31...ef4= 32.gf4 Re8 33.c4 Rb8 34.Re1 Nc5 e4 seems the pivot of the position 35.Bc5 bc5 (worse is 35...dc5 36.e5+/–) 36.Rb5 Rb6 (36...Rb5 37.ab5 (worse is 37.cb5 Nd5 38.Qg3 Nb6–+) 37...a4 38.e5+=) 37.Qc3 White intends e5 37...Ra6 38.e5 Attacks the isolani on a5 38...de5 39.fe5 Ng4 40.Nf3 Rg6 41.Kf1 h5 42.Qa5 (better is 42.Re2+/–) 42...Qd7+= 43.e6?? (43.Qc3 Qf5 44.Rb2 (44.Rc5?? Nh2 45.Kf2 Qh3–+) 44...Ne5 45.Re3–/+ (45.Re5 Re5 46.Rb8 Kh7–+)) 43...fe6–+ 44.Rb3 (44.Rc5 Nh2 45.Kf2 Qf7–+) 44...Rf8 45.h3 (45.Re2 Qd6 46.Ke1 ed5 47.Rd3–+) 45...Nh2 46.Kf2 ed5 47.Ree3 (47.Qc5 Nf3 48.Qf8 Kf8 49.Rf3 Kg8 50.cd5 Qd5 51.Ree3–+) 47...Qh3 48.Qc5 (48.Re8 Qf1 49.Ke3 Re8 50.Ne5 Re5 51.Kd2 Rg2 52.Kc3 Qc4) 48...Qf1 0–1. pzn2pawn (1860) – Divot Farmer (1785), redhotpawn.com, 2016.

12.de5 A) 12...de5 13.Ba3 (13.e4 Qc7 14.Rfd1 Bb6 15.Nc4 Bg4 16.Qe2 Bc5 17.Ne3 Be6+=; 13.Rad1 Qe7 14.Qa4 Bg4 15.Bb5 Qc7 16.h3 Bh5 17.Ne4 Ne4+=; 13.Rfd1 Qe7 14.Qa4 Bg4 15.Bb5 Qc7 16.h3 Bh5 17.e4 Bb6+=) 13...Be6 14.Rfd1 Qc7 15.Ne4 Ne4 16.Be4 Rad8 17.c4 Bg4=; B) 12...Ne5 13.c4 (13.Rac1 Bg4 14.c4 Rc8 15.Bd4 Bf3 16.Nf3 Nf3 17.gf3 Bb6=; 13.Rfd1 Qc7 14.h3 Be6 15.c4 Nfd7 16.Bh7 Kh8 17.Bf5 Bd2=; 13.Rfc1 Nd3 14.Qd3 d5 15.c4 dc4 16.Qd8 Bd8 17.Nc4 Ne4=) 13...Bg4 14.Rab1 Qe7 15.Bf5 Bd2 16.Nd2 b6 17.Bd4 Bf5=.

6.d4 Qb6

7.Ba3?? Ba3–+ 8.Na3 Qa5 9.Nd2 Qa3 10.Bc4 (10.d5 Nb4 11.Ne4 Ke7–+ (11...Na2?! 12.c3–+)) 10...Nf6 11.Nb3 (11.0–0 0–0–+) 11...Qb4 (11...ed4 12.0–0 Qb4 13.Bd3 de3 14.Re1–+) 12.Nd2 ed4 13.Rb1 Qc3 (13...Qa5 14.ed4 Nd4 15.0–0–+) 14.Rb3 Qa5 15.0–0 0–0 16.Rb5 Qc7 17.e4 (17.Re1 Re8–+) 17...Re8 18.Re1 Ne5 (18...Bg4 19.Qb1 b6 20.Bd5–+) 19.Be2 (19.Bd5 a6 20.Rb2 Nd5 21.ed5 Qc5–+) 19...Bd7 20.Rb2 Rac8 21.a3 d5 22.ed5 Nd5 23.Ne4 Bf5 24.Qd4 Be4 25.Qe4 Nc3 26.Qb7 Qd6 27.Bf1 Rb8 28.Qb8 Rb8 29.Rb8 Qb8 30.h3 f6 31.Bd3 Nd3 32.cd3 Qd6 33.g3 Qa3 34.Kg2 a5 35.Re8 Kf7 36.Rc8 Qb2 (37.Rc7 Kg6–+) 0–1. Munkwitz,Wolfgang (1615) – Glowatzky,Tihomir (1700), TT–15.12 ETC, 2005.

7.Bc3 Bb4

8.Qd2 e4 9.Ng5 d5 10.a3 (better is 10.Bb4 Qb4 11.c4 dc4 12.Ne4+=) 10...Bd6–/+ 11.Qe2 Nf6 12.Nd2 Qc7 13.Qb5 0–0 14.Be2 Bd7 15.Qb2 Rab8 16.h4 h6 17.Qa2 (17.Nh3 Rfc8–/+) 17...Ne7–+ 18.Bb2 (18.Bb4 hg5 19.hg5 Ne8–+) 18...hg5 19.hg5 Nh7 20.c4 Ng5 (20...dc4 21.Ne4 b5 22.Bc3–+) 21.Rh5 (better is 21.c5 Bh2 22.Rc1–/+) 21...f6 22.c5 Bg3! 23.Nf1?? (23.fg3 Qg3 Double attack (23...Nf5 Decoy)) 23...Qa5–+ 24.Nd2 Bf2! 25.Kf2 Qd2 26.Rd1 Qc2 27.Rc1 Qa4 28.Bd1 Qc6 29.Bb3 g6 30.Rh4 Kg7 31.a4 Rh8 32.Rch1 Rh4 33.Rh4 Rh8 34.Rh8 Kh8 35.Qb1 Qc7 36.Qh1 Kg7 37.Bc3 Nf5 (37...Nf5 38.Qg1 Qg3 39.Ke2 Nh3–+) 0–1. Pisarsky,Georgy (2080) – Meleshin,Valery (2070), Novosibirsk–ch Seniors, 2008.

8.d5 Nce7 9.Qd2 Bc3 10.Nc3 Nf6 11.Rb1 Qd8 12.Bb5 Bd7 13.Bd7 Qd7 14.0–0 0–0 15.Rb3 Rfc8 16.Rfb1 b6 17.Qd3 Rc5 18.e4 Rac8 19.Ne1 Ng6 20.Ne2 Qa4 21.Nc3 Qd7 22.g3 Qh3 23.f3 1–0. Romischke – Hombergs, 1995.

8.Be2 Nf6 9.0–0 0–0 10.Bb4 Qb4 11.a4 Be6 12.c3 Qb2 13.Ra3 =+.

8.Be2 Nf6 9.0–0 0–0 10.Bb4 Qb4 11.a4 Bg4 12.c3= Qa5 13.Na3 (13.c4!?=) 13...e4–/+ 14.Nd2 Be2 15.Qe2 d5 (15...Qc3!? 16.Rfc1 Qa5–/+) 16.c4= Rac8 (16...Rfd8 17.Rfb1 b6 18.Rb5 Qa4 19.cd5=+) 17.cd5 (17.Rfc1 Rfd8=+) 17...Qd5=+ 18.Qb5 Qd7 19.Rac1 Rfe8 (19...Rfd8 20.Rfd1=) 20.Qb1 (20.Rfd1=) 20...Ng4 (better is 20...b6!?=) 21.Ne4+/– Qe7 22.Nb5? (better is 22.h3 Ne3 23.fe3 Qa3 24.Rc3=) 22...Qe4–+ 23.Qe4 (23...Re4 24.Nd6=). Luzuriaga,Norberto Horacio – Hjortstam,Kurt, corr or01–001 E–mail, 2001.

8.Be2 Nf6 9.0–0 0–0 10.Bb4 Qb4 11.a4 Bg4 12.c3 Qa5 13.h3 Bh5 14.Nfd2 Be2 15.Qe2 Rad8 16.Nb3 Qc7 17.N1d2 Rfe8 18.d5 Nd5 (19.c4 Nf6–/+) 0–1. Darlanio (1960) – freddy007 (2270), ChessWorld.net, 2003.

8.Be2 Nf6 9.0–0 0–0 10.Bb4 Qb4 11.Qd2 e4 12.Ng5 h6 –/+.

8.de5 de5 9.Nbd2?? (better is 9.a3 Bc3 10.Nc3=+) 9...Bc3–+ 10.Rb1 Qc7 11.Bc4 Bg4 12.h3 Bf3 13.Qf3 Rd8 14.Rd1 Rd2 15.Rd2 Nf6 16.0–0 (16.Ke2 Bd2 17.Kd2 Qa5 18.Ke2–+) 16...Bd2 (17.Bd5 Nd5 18.Qd5 Bb4–+) 0–1. rookie2 (1765) – freddy007 (2260), ChessWorld.net, 2003.

8.a3 Bc3

9.Nc3 Nge7 10.d5 Nb8 11.Rb1 Qd8 12.Bb5 Nd7 13.Ne4 Qc7 14.Nfd2 a6 15.Bd7 Bd7 16.Rb7 1–0. Zschalich – Kinskuni, Nahp.

9.Nc3 Bg4 10.d5 Bf3 11.gf3 Nce7 12.Qb1 Qc7 13.Nb5 Qc5 14.Qb4 Rd8 15.Qc5 dc5 16.Rd1 a6 (16...Nd5? 17.Rd5 Rd5 18.Nc7 Kd7 19.Nd5+–) 17.Nc3 Nf6 18.Ne4 Ned5 19.Nc5 Rb8 20.Rb1 Rc8 21.Rb7 0–0 22.Nd7 Nd7 23.Rd7 Nf6 24.Rd2 Rc6 25.Rg1 h6 26.Bd3 Rc3 27.Ba6 Ra8 28.Bb5 Rca3 29.Ke2 Rc3 30.Rb1 Rb8 31.Rb4 Kf8 32.Rc4 Rc4 33.Bc4 Ke7 34.Rd1 Rb4 35.Bb3 Rb7 36.Ra1 Nd7 37.Ra5 Rc7 38.f4 (38...ef4 39.Rf5 fe3 40.Rf7 Kd6 41.fe3+/–) 1–0. Schirmer,Michael – Hjortstam,Kurt, email 4AMM–F, 1998.

9.Nc3 Bg4 10.Be2 Nf6 11.Rb1 Qa5 12.Qd2 ed4 (12...Qa3 13.Nb5 (13.Rb7?! 0–0=) 13...Qa2 14.Nd6 Kf8 15.Rb7 ed4 16.Rf7 Kg8 17.Bc4 (17.Nd4?! Nd4 18.ed4 Qe6+=) 17...Qc4 18.Nc4 Kf7 19.Nfe5 Ne5 20.Ne5 Ke6 21.Ng4 Ng4 22.Qe2+–) 13.Nd4 Nd4 14.ed4 Be2 15.Ne2 Qa3 16.0–0 0–0 17.Ng3 d5 18.Nf5 Rfb8 19.Rfe1 Qf8 20.Ne7 Kh8 21.Qg5 b5 22.Nd5 Nd5 23.Qd5 a6 24.c3 Rc8 25.Re3 Re8 26.Ra1 Rac8 27.Qb7 Re3 28.fe3 Rc3 29.Qa6 b4 30.Qb7 Rc8 31.e4 Rb8 32.Qc7 b3 33.Rb1 Qb4 34.Kh1 Ra8 35.h3 Qd4 36.Qf7 ½–½. marekt – Klaus Behrmann, ChessWorld.net, 2003.

9.Nc3 Nf6

10.Nb5 0–0 11.Nd6 ed4 12.Nd4 Rd8 13.Nc4 Qc7 14.c3 Be6 15.Nd2 Bd5 16.Rb1 Qa5 17.Nc6 Bc6 18.Qc1 Rac8 19.Rb4 Re8 20.Nb3 Qe5 21.Rd4 Bd5 22.Qb2 b6 23.Nc1 Qc7 24.c4 Re4 25.Re4 (< 25.Rd5 Nd5 26.cd5 Qc1 27.Qc1 Rc1 28.Kd2 Rc5–/+) 25...Be4 26.f3 Bf5 27.Nb3 ½–½. marekt – freddy007, ChessWorld.net, 2003.

10.Nb5 0–0 11.Nd6 Bg4 12.Rb1 (12.Nc4 Qc7 13.d5 b5=) 12...Bf3= 13.gf3 Qa5 14.Qd2 Qa3 The passed pawn on a7 quickly leads to threats 15.Nc4 Qe7 16.d5 The passed pawn on d5 will quickly become a dangerous weapon 16...Rfd8 17.d6 Qd7 18.h4 Rab8 19.Bh3 Qe8 20.Rd1 b5 21.Nb2 e4 22.f4 a5 23.Rg1 Qf8 24.c4 a4 25.cb5 Rb5 26.Nc4 Nb4 27.Bf1 Rdb8 28.Rg5 Rd5 29.Rd5 Nfd5 30.d7 Rd8 31.Ne5 Nb6 32.Bh3 a3+= 33.Qc3 a2 34.Bf5 Nd3 35.Nd3= ed3 36.Ra1 g6+= 37.Bd3 Nd5 38.Qd2 Nb4 39.Bc4 Qe7 40.Qc3 Rd7 41.h5 Qe4 42.Qb4= Qh1 43.Bf1 Rb7 44.Qc4. Van Rooijen,Peter – Tremayne,David L, WCCF, 2003.

10.Nb5 Qa5 11.Qd2 Qd2 12.Kd2 =.

10.Nb5 Qa5 11.Qd2 Qd2 12.Nd2 0–0 13.c3 Rd8 14.Bc4 Bf5 15.Nf3 Bg4 16.a4 e4 17.Nd2 d5 18.Ba2 b6 19.Rc1 a6 20.Na3 b5 21.Bb3 Na5 22.ab5 Nb3 23.Nb3 Rdb8 24.h3 Bd7 25.0–0 Bb5 26.Nb5 Rb5 27.Nc5 Kf8 28.c4 Rb4 29.cd5 Ke7 30.Rb1 a5 31.Rb4 ab4 32.Rb1 Rb8 33.f3 Nd5 34.fe4 Ne3 35.Na6 Rb6 36.Nb4 Kd6 37.Rb2 Nc4 ½–½. Kedzierski – Hjortstam, corr 3GMM½–08 1997–99.

10.Bd3 0–0 11.0–0 ed4 (11...Qa5 12.de5 de5 13.Ne4=) 12.Nd4 (12.ed4 Bg4 (12...Nd4? 13.Nd4 Be6 14.Bf5+–) 13.Rb1 Qa5=) 12...Nd4 13.ed4 Qc6 (13...Re8 14.Qd2=) 14.Qd2 Be6 15.Rfe1 Rac8 16.Re3 Bc4 17.Bc4 (17.Ne4 Ng4 18.Re2 d5=) 17...Qc4 18.Rb1 Qc6 (18...b6 19.Nb5=) 19.Rg3 (19.d5 Qc7=) 19...Ne4 20.Ne4 Qe4 21.Rc1 (21.Rb2 Rfe8 22.Re3 Qd5=) 21...Rfe8 (21...b5 22.Re3 Qf5 23.Re7=) 22.Re3 ½–½. Gretencord,Ulrich – Schirmer,Michael, 2004.

10.Bd3 Qa5 11.Qd2 0–0 12.Ne4 Qd8 13.Nf6 Qf6 14.0–0 Re8 15.d5 e4 16.Be4 Re4 17.dc6 bc6 18.Nd4 d5 19.Qb4 Qg6 20.Rab1 c5 21.Qc5 Bh3 22.g3 Bf1 23.Qd5 Ree8 24.Kf1 Qa6 25.Kg2 Qa3 26.Rb7 Qf8 27.Nc6 Re6 28.Ne7 (28.Ra7? Rc6 29.Rf7 Qd6–+) 28...Kh8 29.Rd7 Re8 (29...Rf6 30.c4=) 30.Nc6 Kg8 31.c4 a5 (31...a6 32.c5=) 32.Ra7 Rd6 (32...a4 33.Ra4 Rc8 34.Nd4+=) 33.Qc5+= Rde6 34.Qd5 (34.Ra5!? Rd6 35.Ra7+=) 34...Rd6= 35.Qc5 Rde6 ½–½. Jacon,Marcel (1740) – Sternik,Ryszard (1860), FICGS, 2010.

10.Bd3 ed4 11.Nd4 Nd4 12.ed4 =.

10.Bd3 Bg4 11.0–0 (11.de5 Qc5 12.0–0 de5=+) 11...0–0 (11...ed4 12.Rb1 Qc5 13.Ne4 Ne4 14.Be4 de3 15.Rb7=+) 12.Ne4 (12.d5 Ne7=) 12...Qd8 (12...Ne4 13.Be4 ed4 14.Rb1=) 13.h3 (13.Rb1 Ne4 14.Be4 d5 15.Bh7 Kh7–+) 13...Bf5 14.Nf6 Qf6 15.Bf5 Qf5 16.c4 Rac8 (16...e4 17.Qc2=) 17.Qa4 (17.Rb1 e4 18.Nd2 Rc7=) 17...b6 (17...e4 18.Nd2=) 18.Rfd1 (18.Rfb1 Rfe8=) 18...Na5 (18...e4 19.Qb5 Qb5 20.cb5 ef3 21.bc6 Rc6 22.Rdc1=) 19.Rac1 (19.c5 e4 20.Nd2 dc5 21.dc5 Qc5 22.Ne4 Qc4=) 19...e4 20.Nd2 Qe6 (20...Rfd8 21.Qb5 Qg6 22.c5=) 21.c5+= dc5 22.dc5 f5 23.cb6 (23.Qb5 f4+=) 23...ab6= 24.Qb4 Rfd8 25.Nf1 (25.Rc8 Rc8 26.Qb5 Rc2=) 25...Rd1=+ 26.Rd1 Nc4 27.a4 (27.Nd2 Rd8 28.a4 Qd5–+) 27...g6 (27...Qg6 28.Nd2 Qh5 29.Qb3+/–) 28.Ng3 (28.Nd2 Rd8 29.Kf1 Nd2 30.Ke2 Qa2 31.Rd2 Rd2 32.Qd2 Qa4 33.Qd8 Kf7 34.Qc7 Ke8 35.Qb6 Qc4 36.Kd2 g5=) 28…Kf7 (28...h6 29.Qb5=) ½–½. Bonetti,Shane (2110) – Glowatzky,Tihomir (1700), TT–15 ETC, 2005.

10.d5 Qa5 11.Qd2 Ne7 =.

10.d5 Ne7 11.Qd2 0–0 12.Be2 Qc5 13.e4 Bd7 14.Bd3 Rac8 15.Ne2 Ned5 16.ed5 e4 17.Nfd4 ed3 18.cd3 Qd5 19.0–0 Rfe8 20.Rac1 Ng4 21.Rc8 Rc8 22.Re1 Qe5 23.f4 Qd5 24.h3 Nf6 25.Rb1 b6 26.Qb4 Rc5 27.Re1 Qh5 28.Nb3 Bh3 29.gh3 Qh3 30.Rc1 Ng4 31.Qd4 g6 32.Nc5 dc5 0–1. Woschkat,Karl_Heinz – Nittschalk,Karl, THT 1.74 (year?).

10.de5 Qa5 11.ef6 Qc3 12.Nd2 Bg4 +/–.

8.Bb4 Qb4

9.Nbd2 a6 10.Bd3 ed4 11.Rb1 Qc5 12.Ne4 Qa5 13.c3 Ke7 (13...d5 14.Nd6 Kf8 15.0–0 (< 15.Nc8 Qc3 16.Qd2 Rc8=+) 15...de3 16.fe3+=) 14.Nd4 d5 15.Qh5 Nd4 16.ed4 f6 (better is 16...f5!? 17.Qg5 Kf8+=) 17.Nc5+– Qc3 18.Kd1 Qd4?? (18...Nh6 19.Re1 Kd6 20.Rb6 Kc7 21.Qd5 Qe1 22.Ke1 Kb6 23.Na6 Re8 24.Kd2 ba6 25.Qa8 Kc7 26.Qa7 Kd6 27.Qg7 Ng8 28.Qg3 Ke7+–) 19.Re1 Kd6 20.Qf7 Qc5 21.Rc1 Bg4 22.f3 Qa5 23.fg4 Qa4 (23...Qe1 24.Ke1 Ne7 25.Qg7 Raf8+–) 24.Rc2 Qg4 25.Ree2 Rc8 26.Rc8 Qc8 27.Qg7 (27...Qd8 28.Qh8+–) 1–0. Bendig,Frank – Myrberg,Johnny, TKM/Final, 2003.

9.Nbd2 ed4 10.Rb1 Qa5 11.Nd4 Nd4 12.ed4 Nf6 (< 12...Qa2 13.Nc4 Qa6 14.Rb6+/–) 13.Bb5 Kd8 14.0–0 d5 15.Re1 a6 16.Bd3 Re8 17.Re5 Qa2 18.Qc1 Qa4 19.c4 Qc6 20.Qa3 Re5 21.de5 Nd7 22.cd5 Qd5 23.Nc4 b5 (< 23...Ne5 24.Nb6 Qd3 25.Qf8 Kc7 26.Rc1 (26.Na8?! Kb8 27.Rc1 Nc4+/–) 26...Nc6 27.Na8 Kb8 28.Nb6+–) 24.Nd6 (24...b4 25.Qb4 Qd3 26.Nf7 Ke8 27.Nd6 Kf8 28.Qf4 Nf6 29.Re1+–) 1–0. Frank Bendig (2060) – Klaus Behrmann (2300), ChessWorld.net, 2003.

9.Nbd2 Nf6 10.Rb1 Qa5 11.Rb5 Qa2 12.Nc4 Ne4 13.Rb3 Qa4 14.Ng5 d5 15.Ne4 dc4 16.Nd6 Ke7 17.Nc4 ed4 18.ed4 Re8 19.Be2 Be6 (19...Kf8 20.Re3=) 20.d5 (better is 20.Rb7!? Kf8 21.c3 Qd1 22.Kd1+=) 20...Rad8= 21.Ne3 Qa5 22.Qd2 Qd2 23.Kd2 Bd5 24.Rb7 Kf6 25.Bd3 Be4 26.Ra1 Ne5 27.Rb3 Rd7 28.f4 Nd3 29.cd3 Red8 30.Raa3 h5 31.Ke2 Bh7 ½–½. Frank Bendig (2325) – Tihomir Glowatzky (2150), ChessWorld.net, 2003.

9.Nbd2 Nf6 10.Rb1 Qa5 11.Rb5 Qa2 12.Nc4 Ne4 13.Rb3 Qa4 14.Ng5 d5 15.Ne4 dc4 16.Nd6 Ke7 17.Nc4 ed4 18.ed4 Re8 19.Re3 Be6 20.c3 Qd1 21.Kd1 Rad8 22.Kc2 b5 23.Nd2 Rc8 24.Nb3 Nb4 25.Kb2 Nd5 26.Rg3 b4 27.c4 Nb6 28.c5 (< 28.Rg7 Bc4 29.Bc4 Nc4 30.Ka1 Rh8=+) 28...Na4 29.Kc2 Nc3 30.Ba6 Rc6 31.Ra1 Kf8 32.Rc3 bc3 33.Kc3 Rc7 34.Nd2 Rb8 35.Bc4 Rd8 36.Ne4 h6 37.f4 Rcd7 38.Be6 fe6 39.Nd6 h5 40.Ra6 h4 41.g3 hg3 42.hg3 g5 43.fg5 Rg7 44.Kd3 Rdd7 45.Kc4 Rg5 46.Nb5 Ke7 47.c6 (47.Na7?! Rg3 48.Nc6 Kf6+=) 47...Rb5 48.Kb5 Rd5 49.Kc4 Kd6 50.c7 Kc7 51.Re6 Rg5 52.Re3 Kd6 53.Ra3 a5 54.Ra2 Kc6 55.g4 Kd7 56.Ra3 Kc6 ½–½. Frank Bendig (2295) – freddy007 (2270), ChessWorld.net, 2003.

9.Nbd2 Nf6 10.Rb1 Qa5 11.Rb5 Qa2 12.de5 de5 13.Ne5 0–0 14.Bc4 Qa4 15.Nd3 a6 16.Rc5 Bd7 17.0–0 b6 18.Rg5 Rad8 19.Qb1 h6 20.Rg3 Qa5 21.Qb2? Nh5–/+ 22.Ne4 Ng3 23.Ng3 Qg5 24.Ba6=+ Rb8 25.f4 Qe7 26.e4 Rfd8 27.Bc4 Be6 28.Bb5 Nd4 29.f5 Bb3 30.f6 Qc7 31.cb3 Nb5 32.Nf4 Qc5 33.Kh1 Nc3 34.Qc2 g5 35.Nd3 Qd4 36.Ne1 Rbc8 37.Nf5 Qf6 38.e5 Qe6 39.Nf3 Nd1 40.Qb1= Nc3 41.Qc2 Nb5 42.Qe4 Nd6! 43.Nd6 Rd6 44.Nd4 Qd5 45.Qg4 Rd7 46.Nf5 Rc6 47.h4 Qe5 48.hg5 hg5 49.Qg5 Kf8 50.Qh4 Qf6 51.Qa4 Rd5 52.Qa8 Rd8 53.Qa4 Rc5 54.Qb4 Qg5 55.Kg1 Rd2 56.Qe4 Ra2 57.Nd4? Re5–+ 58.Qf3 Qe3 59.Kh2 Qf3 60.Rf3 Rb2 61.Rf4 Rd5 62.Kh3 Rd4! 63.Rd4 Rb3 64.Kg4 b5 65.Rd7 Rb2 66.g3 b4 67.Rb7 b3 68.Kf3 Kg7 69.g4 Rb1 70.Rb6 b2 71.Kg2 f6 72.Rb5 Kf7 73.Rb6 Ke7 74.Kh2 Kf7 75.Kg2 Ke8 76.Rb7 Kd8 77.Rb6 Kc7 78.Rb3 Kc6 79.Rb8 Kd5 80.Rb4 Kc5 81.Rb8 Kd4 82.Rb3 Ke4 83.Rb4 Kd3 84.Rb6 Kc2 85.Rc6 Kd3 86.Rb6 Kc2 87.Rc6 Kd3?? 88.Rb6= Kc2 ½–½. ChelseaMick – Tihomir Glowatzky, ChessWorld.net, 2005.

9.Nbd2 Nf6 10.Rb1 Qc3 11.Rb3 Qa5 12.Rb5 Qc7 13.Bd3 Qe7 (13...0–0 14.0–0=) 14.de5 de5 15.Ne4 0–0 16.Nf6 Qf6 17.0–0 b6 18.c4 (18.Rd5 Be6 19.Rd6 Rac8=) 18...Ba6 0–1. Voveris,Saulius (1800) – Domingo,Jordi (1970), FICGS, 2010.

6.d4 ed4

7.ed4 Bb6 8.d5+= Ne5 9.Bb5 (worse 9.Be5 de5 10.Bb5 Kf8=) 9...Bd7 10.Bd7 Qd7 11.Ne5 de5 12.Be5 f6 13.Bb2 Ne7 14.c4 0–0 15.0–0 Ng6 16.Bd4 Qc7 17.Bb6 Qb6 18.Qb3 Qb3 (18...Qd6 19.Nc3+–) 19.ab3+– Ne5 20.Nc3 Rfd8 21.Nb5. wg_ffm – Mensch, Chess Game, 2017.

7.Nd4 Bb4 8.Nd2 f6 +=.

7.Nd4 Bd4 8.ed4 =.

7.Nd4 Nd4 8.Bd4 Bd4 9.Qd4 Nf6 10.Bd3 0–0 11.0–0 Qe7 12.Nd2 Re8 13.Rfb1 Ng4 14.Nf3 Ne5 15.Ne5 de5 16.Qe4 g6 17.Rb5 Rb8 18.Rab1 b6 19.Qb4 Qf6 20.Be4 Be6 21.a4 Rbc8 22.Bd3 e4 23.Be4 Rc4 24.Qb2? (better is 24.Qd6 Rd8 25.Qe5 Qe5 26.Re5+=) 24…Qb2–+ (24...Qb2 25.R1b2 Re4–+) 0–1. Glasunov,Johann – Gross,Ka (2115), Sparkassen Open, Nettetal GER, 2010.

7.Nd4 Nf6 8.Bd3 (8.Be2 0–0=+) 8...0–0 (8...Qb6 9.Nb3 Ne5 A) worse 10.Nc5 Qb2 (10...Qc5?! 11.Bd4 Qc6 12.0–0+=) 11.Nb3 0–0=+; B) 10.0–0=) 9.Nc6= bc6 10.0–0 (10.Nd2 Bg4 11.Qc1 Rb8=) 10...Bg4 (10...Rb8 11.Bd4=+) 11.Qc1= Re8 (11...Rb8 12.Nd2=) 12.c4 (12.Nd2 Rb8=) 12...Rb8 (12...Nd7 13.Qc2 Qh4 14.h3=) 13.Nd2 Bb6 (13...Bh5 14.Rb1=) 14.Qc2 h6 (14...Bd7 15.Bf6 Qf6 16.Bh7 Kh8 17.Bd3+=) 15.Ne4 (15.h3 Bd7+=) 15...Ne4= 16.Be4 d5 17.Bd3 (17.cd5 cd5 18.Bh7 Kh8=) 17...Qg5 (17...d4 18.ed4 Bd4 19.Bd4 Qd4 20.Rab1=) 18.Rfe1 (18.g3 dc4 19.Bc4 Bf5=) 18...Bf3 (18...dc4 19.Bc4 Bf5=) 19.Bf1 (19.g3!?=) 19...Ba5 (19...Be4 20.Qe2–/+) 20.Bc3 Be4 21.Qd2 Bc7 (21...Bc3 22.Qc3 h5 23.cd5 cd5 24.Kh1=+) 22.f4 (22.cd5 Rbd8=+) 22...Qg6 23.Bd4 (23.cd5 cd5 24.Rad1 Bb6=+) 23...Bb6 (23...Red8 24.Rac1–/+) 24.c5 (24.cd5 cd5 25.Rac1 Bd4 26.Qd4 a5=+) 24...Bd8–/+ 25.g3 (25.Rac1 Re6–/+) 25...Bf6 (25...Bc7 26.Bg2–/+) 26.Bg2 Bf5 27.Bf6 (27.Qc3 Bd8–/+) 27...Qf6 (worse 27...gf6 28.Rac1=+) 28.Qd4 Rb2 (28...Qe6 29.Rad1–/+) 29.Qf6 (29.Bf3 Kf8–/+) 29...gf6 30.h3 (30.Bf3 Kg7–/+) 30...Kg7 31.g4 (31.Bf3 Kg6–/+) 31...Bd3 (31...Be4 32.Be4 Re4 33.a3–+) 32.Bf3 (32.a4 Rc2–/+) 32...f5 33.Rad1 (33.a4–/+) 33...fg4 (33...Be4 34.Be4 Re4 35.Ra1–+) 34.hg4 (34.Bd5 Bb5 35.Bg2 gh3 36.Bh3 Be2=+) 34...Be4–/+ 35.Be4 Re4 (worse 35...de4 36.Rd6=+) 36.Rd4 Re6 (36...Rd4 37.ed4 Ra2–/+) 37.e4? (37.Ra4 Rg6 38.f5 Rg5–/+) 37...de4 (37...Ra2!? 38.e5 a5 39.f5–+) 38.Ree4 (better 38.Rd6!?=+) 38...Re4–+ (38...Ra2?! 39.Re6 fe6 40.Rd6=) 39.Re4 Ra2 40.Re7 Rc2 (better 40...Ra4!? 41.Rc7 Rf4 42.Rc6 a5–+) 41.Ra7= Rc5 42.Kf2 Rc3 (42...Kg6 43.Rd7=) 43.Rc7 Kg6 44.Kg2 (44.Rd7!?=) 44...f5–/+ 45.gf5 Kf5 46.Rf7?? (46.Rh7 Kf4 47.Rh6 Ke3–/+) 46...Kg6?? (better 46...Kg4–+) 47.Rc7? (better 47.Re7!?=+) 47...h5–+ 48.Rc8 c5 49.Rc6?? (better 49.Rh8–/+) 49...Kf5–+ 50.Rh6 Kg4 51.f5 h4 (better 51...Rg3 52.Kh2 Rf3–+) 52.f6 h3 (52...Rg3 53.Kh2 Rf3 54.Rg6 Kf5 55.Rg8–+) 53.Kg1? (better 53.Kf2 Rf3 54.Ke2=+) 53...Rf3–+ 54.Kh2 c4 55.Rg6 0–1. Winkler,Finn Lukas (1820) – Veng,Johnny (2275), Copenhagen Denmark, Ballerup Open, 2017.

7.ed4 Bb4

8.c3 Ba5 9.d5 Qb6 10.Qb3 Nce7 11.Bb5 Bd7 12.Bd7 Kd7 13.0–0 Nf6 14.c4 Nh5 15.Ng5 h6 16.Nf3 Rhg8 17.Bd4 Qc7 18.Nc3 Bc3 19.Bc3 g5 20.Rfe1 b6 21.Qb5 Kc8 22.Nd4 Nf4 23.Qa6 Kd7 24.Nb5 Qb8 25.Qa4 Kc8 26.Re7 1–0. Geisensetter – Schmidt, corr DDR.

8.c3 Ba5 9.Qe2 Nge7 10.d5 =.

8.Nbd2 Nf6 9.a3 Ba5 10.d5 Ne5 11.Ne5 de5 12.Bb5 Bd7 13.Bd7 Qd7 14.0–0 Qd5 15.Nb3 Bc7 16.Re1 0–0–0 17.Qe2 Rhe8 18.a4 e4 19.Rad1 Qh5 20.Rd8 Rd8 21.g3 Ng4 22.h4 e3 23.f3 Ne5 24.Kg2 Qg6 25.Be5 Be5 26.Qc4 Kb8 27.f4 Rc8 28.Nc5 Qc6 29.Qe4 Bc3 0–1. Morozevich,A – Tendulkar, ICC, 1999.

7.ed4 Qf6

8.Bb5 Bb6 9.0–0 a6 10.Re1 Be6 +/–.

8.Bb5 Bb6 9.0–0+= Nge7 10.Nc3 d5 11.Re1 0–0 12.Qd2 Bg4 13.Ne5 Bf5 14.Ne2 Rac8 15.Ng3 Be6 16.Rab1 Ng6 17.Nc6 bc6 18.Ba6 Rb8 19.c3 c5 20.Ba3 cd4 21.cd4 Rfd8 22.Bc5 Nf4 23.Bb6 Rb6 24.Rb6 ab6 25.Ne2 Ne2 26.Be2 Bf5 27.Bb5 h6 28.Rc1 Bd7 29.Bd7 Rd7 30.Rc8 Kh7 31.Re8 g6 32.Re5 Qd6 33.Qb2 (33.Qe1 Ra7=) ½–½. Van Rooijen,Peter (1700) – Poschmann,Hans (1800), TT–04 TSC, 2002.

8.Bb5 Bb6 9.Nbd2 d5= 10.0–0 Nge7 11.c3 0–0 12.Qb3 Rd8 13.Rfe1 Ng6 14.Re3 Be6 15.Ba3 Rac8 16.Rae1 Nf4 17.Bf1 Qg6 18.g3 Qg4 19.Qd1 h6 20.Kh1 Nh3 21.R1e2 Qh5 22.Qe1 Bc7 23.Ng1 Ng1 24.Kg1 Bg4 25.f3 Bd7 26.Bg2 Qg6 27.Qa1 b6 28.f4 Bg4 29.Re1 Qc2 30.Qb2 Qg6 31.Qb1 Bf5 ½–½. Schulz,Hans_Juergen – Glowatzky,Tihomir, TT–15.02 ETC, 2005.

8.Bb5 Bb6 9.Nbd2 d5 10.c4 Nge7 11.cd5 Nd5 12.Qe2 Be6 13.Ne4 Qe7 14.0–0 0–0 15.Rfe1 Rfc8 16.Neg5 Bf5 17.Bc4 Qd7 18.Rac1 h6 19.Ne4 Qe6 20.a3 Rc7 21.Nc5 Qe2 22.Re2 Nf4 23.Ree1 Bc5 24.dc5 Rd8 25.h3 Nd3 26.Bd3 Rd3 27.Ne5 Rb3 28.Nc6 Rc6 29.Re2 f6 30.f3 Kf7 31.Kf2 Rd3 32.g4 Be6 33.h4 Rd5 34.h5 Rdc5 35.Rc5 Rc5 36.Bd4 Ra5 37.Re3 b6 38.Rc3 Ra4 39.Ke3 Rc4 40.Rd3 Rc2 41.Ba1 f5 42.gf5 Bf5 43.Rc3 b5 44.Rc2 Bc2 45.Bd4 a6 46.Kf4 g5 47.hg6 Kg6 48.Bb6 Bf5 49.Bf2 Bc8 50.Bb6 ½–½. marekt – Frank_Bendig, ChessWorld.net, 2003.

8.Bb5 Bg4 9.Bc3 Bf3 10.gf3 +–.

8.Bb5 Bg4 9.Bc3 Bf3 10.Qf3 Bd4 11.Bc6 bc6 12.Qc6 Ke7 13.0–0 +–.

8.Bb5 Bg4 9.dc5 Qb2 10.Bc6 bc6 =+.

8.Bc3 Bb6 9.d5 Ne5 10.Bb5 Kf8 11.Qe2 Nf3 12.gf3 Qd8 13.Rg1 Nf6 14.Bf6 gf6 15.Nd2 Bf5 16.Bd3 Qd7 17.0–0–0 Re8 18.Bf5 Qf5 19.Qb5 Rc8 20.Ne4 Bf2 21.Rgf1 Be3 22.Kb1 Rc6 23.Qe2 Rb6 24.Ka1 Bf4 25.c3 Rg8 26.Rfe1 Be5 27.Rc1 Rg6 28.Rf1 Bf4 29.Rcd1 Qc8 30.Qd3 f5 31.Ng3 Be5 32.Rc1 f4 33.Ne4=+ Rg2 (34.Rf2 Rf2 35.Nf2 Rb4=+). Woelfelschneider,Peter – Weingarz,Wilfried, T4–12.12 TSC, 2002.

8.dc5 Qb2 9.Nbd2 dc5 =+.

6.Be2 Nf6

7.0–0 Qb6 8.Ba3 =+.

7.0–0 Qb6 8.Bc3 =.

7.0–0 Bb6 8.d4= ed4 9.ed4 0–0 10.d5 Nb4 11.c4 Re8= 12.a3 Na6 13.Nc3 Nc5 14.Nd4 Bd7 15.Re1 Ba5 16.Rc1 Nfe4 17.Rf1 Qf6 18.Ne4 Re4 19.Bd3 Nd3 20.Qd3 Qg6 21.Ne2 Rc8 22.Bd4 b6 23.Rc2 Ree8 24.Ng3?? (better is 24.Qb3=+). Lebel,Patrick (2170) – Sepp,Olav (2435), 34th Olympiad Istanbul, 2000.

7.0–0 Bb6 8.d4 e4 9.Nfd2 0–0 (9...d5 10.c4 Bc7 11.cd5 Qd5 12.Nc3=) 10.c4 Re8 (10...Bf5 11.Nc3=) 11.Nc3 Bf5 12.Ba3 (12.Rb1 Qe7=) 12...a6 (12...Qe7 13.Nb5 Rad8 14.Nd6 Rd6 15.Bd6 Qd6 16.c5 Bc5 17.Nc4+/–) 13.Rb1 Nd4 (better is 13...Ba5 14.Nd5 b6=) 14.Na4?? (better is 14.ed4 Bd4 15.Rb3+/–) 14...Ne2–/+ 15.Qe2 Bg4 16.Qe1 Ba5 17.Rb7 d5 18.c5 d4 19.ed4 Qd4 The passed pawn on c5 will quickly become a dangerous weapon 20.Nb3= Qd3?? 21.Qa5+– e3 22.f3?? e2–+ Threatening mate: exf1Q 23.Re1?? Qe3 24.Kh1 Qf2 25.h3 Bf3! 26.gf3 Qf3 27.Kh2 Plans Nd4 27...Qf2 28.Kh1 Black now must not overlook the idea Nd4 28...Re3 (28...Re3 29.Rb8 Rb8 30.Qd8 Rd8 31.Re2 Rh3#) 0–1. Mikhaylov,Dimitry – Vasiliev,Alexandr (1920), Kishinev MDA Open Binefacere, 2007.

7.0–0 e4 8.Ne1 d5 9.d4 Bd6 10.Nd2 Qc7 11.h3 Be6 12.c4 0–0 13.cd5 (13.c5 Be7=+) 13...Bd5 14.Bc4 Rfe8 15.Bd5 Nd5 16.Nc2 Rac8 17.Rc1 Qd7 18.Qh5 f5 19.Nc4 Bc7 20.Rfd1 b5 21.Nd2 g6 22.Qe2 a6 23.a4 ba4 24.Qa6 Na5 25.Qe2 Rb8 26.Rb1 Rec8 27.Rdc1 Nb3 28.Nb3 Rb3 (29.Na1 Rb6–+) 0–1. Darlanio – Tihomir Glowatzky, ChessWorld.net, 2004.

7.0–0 e4 8.Ne1= Be6 9.f3 =.

7.0–0 e4 8.Ne1= Qe7 9.d4 (9.f3 d5=) 9...Bb6 10.c4 d5 (10...0–0 11.Nd2=) 11.a4 (11.Ba3 Qe6=) 11...Bc7 (11...dc4 12.Nd2=) 12.Ba3 Bd6 (12...Qd8 13.Nc3=) 13.Bd6 Qd6 14.c5 Qc7 (14...Qe6 15.Nc3=) 15.Nc3+= a6 (15...0–0 16.Nb5 Qd7 17.Rb1+=) 16.f3 (16.Qb3 Be6+=) 16...Qe7 (16...Bf5 17.Qb3 Rd8 18.Nc2+=) 17.fe4 de4 18.Bc4 (18.Rf4 0–0+/–) 18...0–0 (18...Bg4 19.Qb1 Rd8 20.Qb6+=) 19.Qc2 (19.Qb1 Rd8+/–) 19...Nb4 (19...Be6 20.Be6 Qe6 21.Rb1+=) 20.Qd2 (20.Qb3 a5+/–) 20...Rd8+= 21.Qb2 Nfd5 22.Nd5 Nd5+= 23.Qf2 Nf6 24.Nc2+= Be6 25.Be6 fe6 26.Qg3 Re8 27.Rf2 e5+= 28.Raf1 Kh8 29.Re2 Rad8 30.Qe1 Qc7 31.Qg3 Qe7+= 32.Qe1 Qc7= ½–½. Stiffler,Jean Marc (1760) – Bussachini,Michel (2060), FRA–chT3, 2001.

7.c4 h6 8.Qc2 Bg4 9.Nc3 a6 10.0–0 0–0 11.Rad1 Nb4 (11...Re8 12.d4 ed4 13.ed4 Bf3 14.dc5 Be2 15.Ne2=) 12.Qb1+= Re8 13.d4 ed4 14.ed4 Ba7 (14...Bb6 15.Rfe1+=) 15.Bc1 (15.Ba3!? a5 16.h3+/–) 15...Qa5= 16.Qb2 Nc6 17.Be3 (< 17.Qb7 Qc3 18.Qc6 Rac8 19.Qa6 Re2 20.Qa7 Bf3 21.gf3 Qc4=+) 17...b6 (17...Qc7 18.h3 Bh5 19.c5=) 18.h3 Bh5 19.g4 (19.Rfe1 Rac8+=) 19...Bg6= 20.a3 Ne4 21.Nd5 Rac8 22.Nh4 Ne7 (22...Bh7 23.Rfe1=) 23.Ne7+= Re7 24.Rc1 (24.Ng6 fg6 25.Bd3 Qa4+=) 24...Ng3 (24...Bh7 25.Bd3=) 25.Ng6 fg6 (25...Ne2 26.Qe2 fg6 27.Qd3+=) 26.Rfe1+= ½–½. Sternik,Ryszard – Braskin,Ivo, corr ICCF GT–242, 1985.

7.d3 0–0 8.Nbd2 Bf5 9.0–0 Rc8 10.e4 Bd7 11.Nb3 Bb6 12.c4 Re8 13.Rb1 Qc7 14.Kh1 Nd8 15.Bc1 Ne6 16.Ng5 Nf8 17.f4 h6 18.Nh3 Bh3 19.gh3 Qc6 20.f5 N8d7 21.Bf3 Nc5 22.Qe2 Nb3 23.ab3 Bd4 24.Bb2 Bb2 25.Rb2 Kh8 26.Rg1 Rg8 27.Rg3 Qc5 28.Rb1 b5 29.Rbg1 bc4 30.bc4 a5 31.Qd2 Qb4 32.Qc1 Kh7 33.Qa1 Rb8 34.Bd1 ½–½. Poschmann – Hjortstam, email 4AMM–F 1997–98.

7.d4 Bb4 8.c3 Ba5 =.

7.d4 Qb6 8.Bc3 Bb4 9.0–0 =.

7.d4 Qb6 8.Bc3 ed4 9.ed4 Bb4 10.0–0 0–0 11.a3 Bc3 12.Nc3 Qa5 13.Nb5 Rd8 14.Nd2 a6 15.Nb3 Qb6 16.Nc3 d5 17.Re1 Bf5 18.g4 Be6 19.Bf3 Rac8 20.Na4 Qc7 21.Nac5 Re8 22.g5 Nd7 23.Ne6 fe6 (< 23...Re6 24.Bd5 Re1 25.Qe1+/–) 24.Bg4 Nf8 25.Qf3 Rcd8 26.Qg3 e5 27.Re3 Ne6 (28.Be6 Re6=) =. Darlanio – Frank Bendig, ChessWorld.net, 2004.

7.d4 Qb6 8.Bc3 ed4 9.ed4 Bb4 10.0–0 0–0 11.d5 Bc3 12.Nc3 Ne7 13.Qd2 (13.Bc4 Qc7 14.Qd4 a6=) 13...Bd7 (13...Qc5 14.Rfd1=) 14.Rab1 Qc7 15.Rfe1 Rac8 16.Bd3 Ng6 (16...Rfe8 17.Nb5 Qc5 18.c4=) 17.Nb5 Qc5 (17...Bb5 18.Rb5 (18.Bb5 Qc2 19.Bd3 Qd2 20.Nd2 Nf4–+) 18...Rfe8 19.Re8 Re8 20.Bg6 fg6 21.Rb4=) 18.Nbd4 (18.c4 Bg4 19.Bg6 fg6+=) 18...Qd5 (18...b6 19.c4+=) 19.c4 Qh5 20.Rb7 Ne5 21.Ne5 de5 22.Ne2 (22.Nf3 Rfe8 23.Ra7 Bg4+–) 22...Bc6 23.Ng3 Qg4 24.Ra7 Rcd8 25.Qe3 g6 26.Rc7 Ba4 27.Ne4 Ne4 28.Be4 Rd1 29.h3 Qf4 30.Rd1 Bd1 31.Qf4 ef4 32.c5 Rd8 33.c6 Kf8 34.Rb7 Ke8 35.g4 fg3 36.fg3 Be2 37.Kf2 Ba6 38.Ra7 Rd2 39.Ke3 Ra2 40.Bd5 Re2 41.Kf3 Re5 42.Bf7 Kf8 43.Bb3 Bb5 44.Rf7 Ke8 45.c7 Rc5 46.Be6 h5 47.Rh7 Rc3 48.Kf4 Ba6 49.Kg5 Rg3 50.Kf6 Rf3 51.Kg6 h4 52.c8Q Bc8 53.Bc8 (53...Kd8 54.Bg4+–) 1–0. Robak,A – Blaszczak,J, corr ch Poland, 1996.

7.d4 ed4 8.Nd4 0–0 9.0–0 d5 10.Bf3 Re8 11.Nc6 bc6 12.c4 Rb8 13.Bd4 Bd6 (13...Bd4 14.Qd4 Ba6 15.Rc1 dc4 16.Qa7=) 14.c5 (14.Nd2 Ne4=) 14...Bf8 (14...Be5 15.Be5 Re5 16.Nc3+=) 15.Qa4= Qc7 16.Bf6 gf6 17.Rc1 Rb5 Attacks the isolani on c5 (17...Rb2!?+=) 18.Bd5= Rc5 (worse is 18...Bc5 19.Nc3 Ra5 20.Qc6 Qc6 21.Bc6+/–) 19.Rc5 Bc5 20.Qc6 (worse is 20.Bc6 Re6 21.Bd5 Qe5 22.Be6 Qa1 23.Qe8 Kg7 24.Qf7 Kh6–/+) 20...Qe5 21.a4?? (better is 21.Nc3! Be3 22.Qc4=) 21...Be3–+ 22.Ra3 (22.Ra2 Bf4 23.Bc4–+) 22...Bd4 23.h3 (23.Rg3 Kh8 24.Be4 Qe4 25.Qe4 Re4 26.Re3 Be3 27.fe3 Re3 28.Kf2–+) 23...Qe1 24.Kh2 Bf2 0–1. purplegadge (1795) – littlefinin (1965), gameknot.com, 2011.

7.0–0 0–0

8.d3 Qb6 9.Bc3 =+.

8.d3 Re8 9.Nbd2 Bb6 10.Rc1 Bf5 11.c4 Nb4 12.Qb3 Na6 13.Rfd1 Bg4 14.h3 Nc5= 15.Qc2 Bh5 16.g4 Bg6 17.Nh4 Nd5 (18.Ng6 Nb4+–; 17...Rf8 18.Ng6 fg6 19.Bf3+=). Haertig,Manfred – Weingarz,Wilfried, PCM–2003 TSC, 2003.

8.d4 Qb6 9.Bc3 ed4 10.ed4 Bb4 =.

8.d4 ed4 9.ed4 Qb6 10.Bc3 Bb4 11.d5 Bc3 12.Nc3 Ne5 13.Rb1 Nf3 14.Bf3 Qc5 15.Qd3 b5 (better is 15...b6!?=) 16.Nb5+/– (16.Rb5?! Ba6=) 1–0. Fournier,Frederic (1990) – NN, Active, 2004.

8.d4 ed4 9.ed4 Bb6 10.d5 Ne5 11.Ne5 de5 12.Be5 Qd5 13.Bb2 Qg5 14.Bf3 Bf5 15.c4 Rad8 16.Qa4 Ng4 17.h3 Nf6 18.c5 Bc7 19.h4 Qf4 20.Qf4 Bf4 ½–½. Gross – Merten, 1986–04–26.

5.e3 Qe7

6.Bb5 Bd6 7.0–0 Nf6 8.d3 0–0 9.Nbd2 a6 10.Bc6 bc6 11.Nc4 Bc7 12.Nce5 Rb8 13.Qc1 Re8 14.d4 Ne4 15.c4 f6 16.Nd3 ½–½. Woelfelschneider,Peter – Milde,Lars, CLB–005.007, 2002.

6.Bb5 Bd6 7.Nc3 Nf6 8.e4 0–0 9.0–0 Bc5 10.Re1 Nd4 11.Bc4 d6 12.Nd5 Nd5 13.Bd5 Nf3 14.Qf3 Be6 15.Rab1 Rac8 16.c4 b6 17.Bc3 (17.d4 ed4 18.Qd3 Qf6=) 17...Qh4 18.d3 Bd5 19.ed5 (worse is 19.cd5 Qf2 20.Qf2 Bf2 21.Kf2 Rc3–/+) 19...f5 20.Rb2 Rf6 21.Qg3 (21.h3 g5 22.Qd1 g4=) 21...Qh5+= 22.Qf3 (22.d4 ed4 23.Bd2 Rff8+=) 22...Qf3–/+ 23.gf3 f4 (23...g5 24.Ree2–/+) 24.Re4+= Kf7 25.Rbe2 Ba3 26.Ba1 Rf5 27.h3 g5 28.Kg2 Bc5 29.Bc3 Kg6 (29...Kf6 30.Rd2+=) 30.a4 (30.d4 ed4 31.Bd4 Bd4 32.Rd4 Re5 33.Re5 de5–/+) 30...Rf7–/+ 31.d4 ed4 32.Bd4 Bd4 33.Rd4 Kf5 34.Re6 Rfc7 35.Rd1 Rc4 36.Rd6 Ra4 37.Rh6 Rd8 38.h4 Rd7 39.d6 Ra5 40.Kh3 gh4 41.Kh4 Ke5 42.Kg4 Rc5 43.Rh5 Kf6 44.Rh6 Kg7 45.Rdh1 Kg8 46.Kf4 Rd5 47.Rg1 Kh8 48.Rf6 (48.Rgg6 a5+=) 48...Rd8 49.Rf7 R5d6 50.Rh1 Rd4 (50...h6!? 51.Ra7 Re8+=) 51.Ke3= Rd3 52.Kf4 R3d4 53.Ke3 Rd3 54.Kf4 R3d4 ½–½. pcmvr (2810) – acidtest, net–chess.com, 2010.

6.Nc3 Nf6 7.Bb5 0–0 8.0–0 a6 (8...d5 9.d4 ed4 10.Nd4 Nd4 11.ed4=+) 9.Bc6 (9.Bc4 d6=) 9...dc6=+ 10.h3 (10.d4 ed4 11.Nd4 Rd8=+) 10...b5 11.d4 Ba3 (11...ed4 12.Nd4 Qd6 13.Qf3=+) 12.Ba3= Qa3 13.Qd3 ed4 14.Nd4 Rd8 (14...c5 15.Nc6 Bb7 16.Ne7 Kh8=+) 15.Nce2 (15.Ne4 Qe7 16.Nc6 Qe4 17.Qd8 (17.Nd8?! Qd3 18.cd3 Bf5+–) 17...Qe8 18.Qe8 Ne8 19.a4 ba4 20.Rfd1+–) 15...Qd3= 16.cd3 c5 17.Nb3 c4 18.dc4 bc4 19.Nbd4 a5 (19...Bb7!?–/+) 20.Rfc1 Ba6 21.Nc3 Nd5 (21...Bb7!?=+) 22.Nc6+= Nc3 23.Rc3 Rd3 24.Rac1 (24.Rd3 cd3 25.Na5 d2+/–) 24...a4= 25.Kf1 Kf8 26.Ke1 Rd6 (26...Rc8 27.Ne5 Rc3 28.Rc3=+) 27.Nd4 (better is 27.Ne5!?+/–) 27...Rb6 28.g3 h5 29.h4 g6 30.Kd2 Rf6 (30...Rab8 31.a3=) 31.f4 (31.f3 Rd8 32.Ra3 Rf3 33.Ra4 Rf6=) 31...Rd6 32.Rb1 Rd5 33.Rb4 Ra5 34.Nc6 (34.Ra3!?+/–) 34...Rc5 35.Ne5 Rd8 36.Kc2 f6 (better is 36...Rcd5 37.Nc4 Bc4 38.Rbc4 Rd2 39.Kb1 Rb8 40.Ka1 f5+=) 37.Nf3?? (37.Ng6 Kf7 38.Ra4–/+) 37...Ra5 (37...Bb5!?=) 38.Nd4 Rd6 39.Ra3 Rd4? (better is 39...Ke7+/–) 40.ed4+– Bb5 41.Re3 (41...Kf7 42.a3+–) 1–0. Gnirk,Hajo – Rover, corr SOK–88–19, 1988.

6.Nc3 Nf6 7.Bc4 d6 8.Ng5 0–0 9.Qf3 h6 10.Nge4 Ne4 11.Ne4 Be6 12.Be6 Qe6 13.Nc5 dc5 14.Bc3 Rad8 15.0–0 Rd7 16.a4 Rfd8 17.a5 Ne7 18.d3 Nd5 19.Bd2 (19.Bb2 c4=) 19...c4 20.dc4 Nf6 (20...e4 21.Qg3 Nf4 22.ef4 Rd2 23.Qe3=) 21.Bc3= Rc8 22.Qe2 (22.Ra4 Rdc7=) 22...Rdc7 (22...Ne4 23.Be1–/+) 23.Ra4 Nd7 (23...Ne4 24.Ba1=+) 24.Rd1= Nc5 25.Rb4 Na6 26.Rb5 f6 27.Be1 Qf7 28.Rdb1 Rd8 29.h3 (29.e4 Nc5+=) 29...Rdd7= 30.Kh2 Rc4? (better 30...Nc5!?=) 31.Rb7!+– Rb7 32.Rb7 Qb7 33.Qc4 Kh8 34.Bc3 Nc7 35.Bb4 a6 36.Bf8 Nb5 37.Qe6 Qc7 (better 37...Nc3!?+–) 38.c4 Na3?? (38...e4 39.g3 Na7+–) 39.Ba3 1–0. FeegLood (2590) – feartheerny (2345), lichess.org, 2016.

6.Nc3 Nf6 7.Be2 0–0 8.0–0 d5 9.Na4 (9.d4 ed4 10.ed4 Bd6=) 9...Bd6=+ 10.c4 (10.Nc3 a6=+) 10...Bg4 (10...dc4 11.Bc4 e4 12.Nd4 Bh2 13.Kh1 Nd4 14.Bd4–+) 11.cd5 Nd5 12.d4 Rad8 (12...e4 13.Nd2 Be2 14.Qe2–/+) 13.h3 (13.Ne5 A) 13...Ne5 14.de5 Bb8 15.Bg4 Ne3 16.Qe2 Nf1 17.Rf1+– (17.Qf1?! Be5 18.h3 Bb2 19.Nb2 Rfe8=); B) 13...Be2 14.Qe2 Ne5 15.de5 Be5 16.Be5 Qe5=) 13...Bh5 (13...Bf3!? 14.Bf3 e4–/+) 14.Ne5= Be2 15.Qe2 (15.Nc6 Qd7 16.Qe2 Qc6+=) 15...Ne5 16.de5 Be5 17.Rad1 b5 (better 17...Rfe8!?=+) 18.e4?? (18.Qb5 Bb2 19.Qb2+= (worse 19.Nb2 Nc3 20.Qc4 Nd1 21.Rd1 Qa3–/+; 19.Rd5?! Rd5 20.Qd5 Rd8+–)) 18…ba4–+ (18...ba4 19.Be5 Qe5–+) 0–1. FeegLood – MeneerMandje (2810), lichess.org, 2020.

6.Bc4 Nf6 7.Nc3 e4 8.Ng5 (8.Nd4 Bd4 9.ed4 Qb4=+) 8...0–0 9.Nh3 d6 (9...Ne5 10.Nd5 Nd5 11.Bd5+=) 10.Nf4= Bg4 (10...Bf5 11.0–0=) 11.Qc1 (11.Ncd5!? Nd5 A) 12.Nd5 Qh4 13.Bf6 gf6 (13...Bd1?! 14.Bh4 Bc2 15.Rc1=+) 14.Qg4 Qg4 15.Nf6 Kg7 16.Ng4 f5–/+; B) 12.Qg4+=) 11...Rac8= 12.Ncd5 (12.0–0 Be6 13.Be2 Bf5=) 12...Nd5=+ 13.Nd5 Qg5 14.Bc3 (14.Nf4 Rfe8=+) 14...b5 (14...Be6!? 15.h4 Qf5–/+) 15.Bb3 b4 16.Bb2 a6 17.Nf4 Bd4 18.Bd4 Nd4 19.Qb2 Nb3 20.ab3 ½–½. Cottarelli,Franco – Skaug,Thorbjoern, corr ICCF TT–4–90, 1990.

6.Bd3 Nf6 7.Nc3 (better is 7.Bb5!?=) 7...e4–/+ 8.Nb5 (8.Be4 Ne4 9.Nd5–+) 8...d5–+ (8...ef3 9.Nc7 Kd8 10.Na8 fg2 11.Rg1+/–) 9.Bf6 gf6 10.Nc3 ed3 11.Nd5 dc2 (11...Qd6 12.e4–+) 12.Qc2 Nb4 13.Nb4 Bb4 14.Rb1 a5 15.0–0 Bg4 16.Nd4 Rc8 17.Qd3 Kf8 (17...0–0 18.Rfc1–+) 18.Rfc1 Rc1 19.Rc1 Kg7 20.Qf5 (20.Nf5 Bf5 21.Qf5 Qe6–+) 20...Bf5 (20...Qd7 21.Qd7 Bd7 22.d3–+) 21.Nf5–/+ Kf8 22.Ne7 Ke7 23.Rc7 Ke6 24.d4 Rb8 25.d5 (25.h3!?–+) 25...Kd5 26.Rf7 Rc8 27.g3 Rc1 28.Kg2 b5 (28...Ra1 29.Rb7 Ra2 30.Rh7–+) 29.Rf6 Rc2 30.Rf5 Kc6 31.Rf6 Bd6 32.e4 Kc5 (32...Ra2?! 33.e5=+) 33.Rf5 (better is 33.a3–+) 33...Kb4 34.a3 Ka4 (34...Ka3?! 35.Rb5 a4 36.Rh5–+) 35.Kh3 Ba3 (36.e5 b4–+) 0–1. Fehr,Wolfgang – Skaug,Thorbjoern, corr ICCF TT–4–90, 1990.

6.d4 Bb4 7.c3 Bd6 8.Be2 Nf6 9.0–0 h5 10.de5 Ne5 11.Nbd2 Nfg4 12.h3 Bc7 13.c4 b6 14.Ne5 Ne5 15.Nf3 Ng4 16.Qd5 Rb8 17.Rad1 (better is 17.Bg7 Bb7 18.Qd3+–) 17...Bb7+/– 18.Qg5 f6? (better is 18...Bf3!? 19.Qe7 Ke7 20.gf3 Nf6+=) 19.Qg6+– Kd8 20.Nd4 (20.Ba3 d6 21.Qd3 Ne5 22.Ne5 Qe5+/–) 20...Ne5 21.Qc2 Qd6 22.f4 Nc6 23.Bf3 Nd4 24.Rd4 (24.ed4?! Qf4 25.Bb7 Qh2 26.Kf2 Rb7=) 24...Qe7 25.Qd3 Bf3 26.Rf3 Re8 27.Ba3 Qf7 28.e4 Qe6 29.Qd2 Rb7 30.Rd7 (30.c5 Qc6+/–) 30...Kc8 (better is 30...Qd7!? 31.Rd3 Bb8 32.Rd7 Rd7+=) 31.Rd4+/– (< 31.Rg7 Bf4 32.Rf4 Rg7=+) 31...Qc6 32.Qd3 b5 33.cb5 Rb5 (33...Qb5 34.Qc3+–) 34.Kh1 Qb6 35.Bd6 (better is 35.Rf1 Kb8 36.Bd6+–) 35...Rb1+= 36.Kh2 Bd6 37.Rd6 Qg1 38.Kg3 Qe1 39.Kh2 Qe4?? (better is 39...Qh1!? 40.Kg3 Qe1 41.Rf2 Rb2 42.Rc6 Kb8+=) 40.Qe4 (better is 40.Rd8! Rd8 41.Qe4+–) 40...Re4+= 41.h4 (41.Rc3!? Kb7 42.Rd7 Kb6 43.Rg7 Rf4 44.Rcc7+=) 41...Rbb4 42.Rc3 Rbc4 ½–½. Stocker,Rupert (2110) – Ploehn,Heiko (2165), Bayern Landesliga Sued, 1999.

6.Be2 Nf6 7.d4 ed4 8.ed4 Bb4 9.c3 Ba5 10.d5 Ne5 11.0–0 0–0 12.d6 Qe6 13.Ne5 Qe5 14.Na3 Re8 (14...Bc3? 15.Nc4 Bb2 16.Ne5 Be5 17.Rb1+–) 15.Bd3 b5 (15...Bc3? 16.Bc3 Qc3 17.Nb5+–) 16.Re1 Qc5 17.Re8 Ne8 18.Nb5 (18.Bb5?! Nd6 19.c4 Nb5 20.cb5 Bb6=) 18...Bb7 19.Qg4 Bb6 20.Qg3 a6 21.Ba3 Qd5 22.Nd4 Bd4 23.cd4 Qd4 24.Rd1 Be4 25.Bc2 Qc4 26.Bb3 Qe2 27.Qc3 Nf6 28.Re1 Qh5 29.f3 Bc6 30.Bb2 Qg6 (31.Qd2 Qf5+/–) +/–. Darlanio – marekt, ChessWorld.net, 2004.

6.Be2 Nf6 7.d4 ed4 8.ed4 Bb6 9.0–0 0–0 10.Re1 d6 11.Nbd2 Na5 (11...Be6 12.c4 d5 13.Bd3+=) 12.Nc4 (12.Bd3 Qc7+=) 12...Nc4= 13.Bc4 Qc7 14.Bd3 Bg4 15.d5 Ba5 16.Bf6 Be1 17.Qe1 gf6 18.Qe4 f5 19.Qf4 Qc3 20.Rb1 (20.Rf1 Qf6=) 20...Qf6 (20...Rae8 21.g3+=) 21.h3 Bf3 22.Qf3 Kh8 (22...Rab8 23.Bf5 (worse is 23.Qf5 Qf5 24.Bf5 Rfe8+=) 23...Kh8 24.Rb4=) 23.Rb4 (23.Rb7 Rfb8 24.Rc7 Rc8+=) 23...Rg8= 24.Rf4 (worse is 24.Rb7 Rg2 25.Qg2 Rg8 26.Qg8 Kg8 27.Ra7 f4 28.Ra8 Kg7–/+) 24...Rg7 25.Rf5 Qe7 26.Rf6 Rag8 27.g3 a6 28.h4 Qe1 (28...Rf8 29.Kg2+=) 29.Kg2+/– Qd2 (29...Qe5!?+/–) 30.Kh3+– Qb4 31.c4 (31.h5 Qg4 32.Qg4 Rg4+–) 31...Qc3 (31...b5!? 32.cb5 ab5 33.Rf7 Qb2+/–) 32.h5 Qe5 33.h6 Rg5 34.Rf7 (34.Kg2 Rh5 35.Rd6 Rh2 36.Kh2 Qd6 37.Qf7 Qh6 38.Kg1 Qg7+–) 34...Rh5+/– 35.Kg2 Rh6 36.Rb7 Qa1 37.Rb1 (37.Bb1 Qe5+/–) 37...Qg7 (37...Qa2?? 38.Qf4 Qb1 39.Bb1+–) 38.Rb6 (better is 38.Qe3!?+/–) 38...Rf6= 39.Qe3 Rgf8 40.Rb2?? (better is 40.Ra6 Rf2 41.Qf2 Rf2 42.Kf2 Qd4 43.Ke2 Qg4 44.Kf2 Qd4 45.Ke2 Qg4 46.Kf2 Qd4=) 40...Rf3–+ 41.Qe2 0–1. Menouar,Elhadi – Hamira,Abdelatif (1915), 3rd President ALG Open, 2015.

6.Bb5 f6

7.0–0 a6 8.Bc4 +=.

7.0–0 a6 8.Bc6 bc6 9.d4 Rb8 10.Bc3 Bb4 11.a3 Bc3 12.Nc3 Nh6 13.d5 Nf7 14.e4 0–0 15.Qd3 Qc5 16.Nd2 Bb7 17.Nb3 Qd6 18.dc6 dc6 19.Rfd1 Rfd8 20.Qc4 Qe7 21.Nc5 Bc8 (21...a5 22.Rd8 Rd8 23.Nb3+/–) 22.Rd8 (22.Na6?! Ba6 23.Qa6 Qc5+=) 22...Qd8 23.Na6 Ra8 24.Nb4 Bb7 25.Rd1 (25.Nc6 Bc6 26.Qc6 Rc8–+) 25...Qe8 26.a4 Kh8 27.Qc5 Ng5 28.Qb6 Rb8 29.a5 Ba8 30.Qc7 Ne6 31.Qd7 Qd7 32.Rd7 Rb4 33.Re7 Kg8 34.Re6 Kf7 35.Rd6 Rc4 36.Rd7 Kg6 37.Ra7 Rc3 38.Ra8 Rc2 39.g3 Rc1 40.Kg2 Ra1 41.Kf3 c5 42.a6 c4 43.Ke3 Ra3 44.Kd2 c3 45.Kd3 Kg5 46.h3 f5 47.a7 fe4 48.Ke4 c2 49.Rc8 Ra7 50.Ke5 Re7 51.Kd4 Re2 52.f3 Rg2+= 53.h4 Kh6 54.g4= Rh2 55.Ke3 Kg6 56.Kf4 Re2–/+ 57.Kg3 ½–½. Williams,Barry M – Hoskyn,Gordon A, NZCCA HT corr New Zealand, 2000.

7.0–0 d5 8.d4 ed4 9.ed4 Bd6 10.Re1 Be6 11.c4! Bb4 12.Bc3 0–0–0 13.cd5 Rd5 14.Bc6 (14...Bc3 15.Re6 Qe6 16.Bd5 (16.Nc3?! Qc6 17.Nd5 Qd5+/–) 16...Qd5 17.Nc3+–) 1–0. Thau,Oliver – Heiden,Markus, DESC, 2001.

7.0–0 e4 8.Nd4 Bd4 9.Bd4 Nd4 10.ed4 Qb4 11.Nc3 Qd4 12.Ne4 Ne7 13.Re1 0–0 14.c3 Qe5 15.Qb3 (15...d5 16.Nc5+=). Sokolski,Aleksey P – Popov, corr, 1956.

7.0–0 e4 8.Nd4 Qf7 9.Nc3 Qg6? 10.Ne4!+– Nd4 11.ed4 Be7 12.Re1 Kd8 13.Qf3 f5 14.Nc5 Rb8 15.Qd5 Qd6 16.Qf5 Nh6 17.Qe5 Ng4 18.Qd6 Bd6 19.f3 Nf6 20.Ne4 Ne4 21.Re4 Re8 22.Rae1 Re4 23.Re4 a6 24.Bd3 h6 25.d5 Bf8 26.Rf4 (26...Bc5 27.Kf1+–) 1–0. Ramos Mora – Estebanell Torras, corr, 1988.

6.Bb5 Nf6

7.Bc6 bc6 8.Ne5 Ba6 9.Qf3 0–0 (9...Rb8 10.Nd3 Bd3 11.Bf6 Qf6 12.Qf6 gf6 13.cd3+/–) 10.Nd3+/– Nd5 11.Nc5 Qc5 12.Qg4 f6 13.Qa4 (13.Qd7 Qc2 14.Qe6 Kh8–+) 13...Nc7 14.d3 Rab8 15.Bd4 Qe7 16.0–0 c5 17.Bc3 Qe6 18.Nd2 Nd5 19.Ba5 Nb4 20.Bc7 Rb7 21.Bg3 Rc8 22.Rfb1 (22.Ne4 Rb6+/–) 22...Bb5+= 23.Qb3 d5 (23...Qb3 A) < 24.cb3 d5=+ (< 24...Nd3 25.Ne4+=; < 24...Bd3 25.Rc1=); B) 24.Rb3 Ba4 25.Rb2 Bc2 26.a3 Bd3 27.ab4 cb4 28.Bd6+/–) 24.a3 Nc6 25.c4 Ba6 26.Qa4 (26...Rb1 27.Rb1+–) 1–0. Frank Bendig – Darlanio, ChessWorld.net, 2004.

7.Bc6 dc6

8.Be5 Ne4 9.Bg7 Rg8 10.Bd4 Rg2 11.Bc5 Qc5 =+.

8.Be5 Ne4 9.h3 0–0 10.d3 Ng5 11.Bf4 Qf6 12.d4 Nf3 13.Qf3 (< 13.gf3 Re8 14.Be5 Qg5=) 13...Re8 14.0–0 Be7 15.Nd2 Bb4 16.Rfd1 Qg6 17.a3 Bc3 18.Rab1 b5 19.Be5 Be6 20.e4 Ba5 21.Nf1 f6 22.Bf4 f5 23.ef5 Bf5 24.Ne3 Be4 25.Qg3 Qg3 26.Bg3 Rad8 27.Be5 Bb6 28.Rb2 c5 29.c3 a6 30.f4 Re7 31.Kh2 Ba7 32.a4 ba4 33.Ra2 Bc6 34.d5 Bd7 35.Rb2 Bb8 36.d6 Re6 37.Rb6 g5 38.g3 Kf7 39.c4 a5 40.Ng4 Rg6 41.f5! Bf5 1–0. Frank_Bendig – marekt, ChessWorld.net, 2003.

8.Be5 Bf5 9.d4+= Rd8 (9...Bb4 10.c3 Bb1 11.0–0 (< 11.Qb1 Bc3 12.Ke2 Nh5–+; 11.Rb1?! Bc3 12.Kf1 b5=; 11.cb4?! Qb4 12.Qd2 Qd2 13.Nd2 Bd3+/–) 11...Ba2 12.Bf6 Qf6 13.Ra2+/–) 10.Qe2 (10.Nbd2 Bb4+=) 10...Bb6 (10...Bb4!? 11.c3 Bb1=) 11.0–0+= 0–0 12.c4 Ng4 13.Qb2 Ne5 14.Ne5 Bc7? 15.Qb7= f6 16.Qc6 fe5=+ 17.de5?? Bd3 18.Rc1 Rd6 19.Qc5 Qh4?? 20.g3+– Rh6?? (21.Qd5 Kh8 22.gh4 Rg6 23.Kh1 Rd8+–; 20...Qh5 21.Qc7 Rh6–+) 0–1. Dziedzic – Baerschneider, corr 3GMM–09, 1995.

8.Be5 Bg4 9.d4 +=.

8.Ne5 Bd6 9.Nc4 0–0 +=.

6.c4 Nf6=

7.Nc3 d6 8.Nd5 Nd5 9.cd5 Nd8 10.Rc1 f6 11.Be2 0–0 12.0–0 Bd7 13.d4 Bb6 14.de5 fe5 15.e4 Qf6 16.Qe1 Qg6 17.Kh1 (Better is 17.Qb4!?=) 17...Qe4–/+ 18.Rc4 (Better is 18.Qd2!?–/+) 18...Qd5–+ 19.Rh4 Rc8 20.Ng5 Bf5 21.f4 (21.Qb4 h6 22.Ne4–+) 21...Qa2 22.Rh7 (22.Ba1 Be3 23.Bf3 Rc1 (23...ef4?! 24.Qd1 Rc5 25.Qd6–+; < 23...Bf4 24.Rf4 ef4 25.Qd1–+) 24.Qc1 Bc1 25.Rc1 Ne6–+) 22...Bh7 23.Qh4 (23.Nh7 Kh7 24.Bd3 Kg8–+) 23...Bb1 (23...Bg6 24.fe5 Rf1 25.Bf1 Qb2 26.Bc4 Nf7 27.Qe1 Rc4 28.Nf3–+) 24.f5 Bf5 25.Bg4 (25.Bf3 Be3 26.Bd1–+) 25...Bg6 (26.Qh8 Kh8 27.Rf8 Qg8 28.Rg8 Kg8 29.Bc8 a5–+; Better is 25...Qc4 26.Qe1 Qg4–+) 0–1. Brinkmann,Wilhelm – Engel,G, Oberliga Nord N, 2001.

7.d4 ed4 8.Nd4 Nd4 9.Bd4 d6 =.

7.Be2 0–0 8.0–0 e4 9.Ne1 d5 10.cd5 Nd5 11.Nc3 Nc3 12.Bc3 Bb4 13.Qc2 Bc3 14.Qc3 Qe5 (14...Rd8!?+=) 15.Qe5= Ne5 16.d4 ed3 17.Nd3 Nd3 18.Bd3 Be6 19.Be4 Rab8 20.Rfc1 b6 21.Rc7 a5 22.a4 Rfc8 23.Rc8 Rc8 24.Kf1 Kf8 25.Ke2 Ke7 26.f4 g6 27.Kd2 Rc4 28.Bc2 Kd6 29.e4 f6 30.Bd3 Rb4 31.Kc3 Kc5 32.h3 f5 33.ef5 Bf5 34.Bf5 gf5 35.g3 Rc4 36.Kd3 Kd5 37.Ra3 h5 38.Ke3 Kc5 39.Ra2 Rc3–/+ 40.Kf2 Kb4 41.Rb2+= Rb3?? 42.Rb3+– Kb3 43.g4! hg4 44.h4 Ka4 45.h5 b5 46.h6 b4 47.h7 b3 48.h8Q Ka3 49.Qf8 Ka2 50.Qa8 1–0. Jacobi,Karl Heinz (1915) – Benne,Horst (1985), Sachsen/Anhalt–ch Seniors, 2005.

7.Be2 0–0 8.Nc3 e4 9.Ng5 h6 10.Nh3 d5 11.Nf4 d4 12.Ncd5 Nd5 13.Nd5 Qd6 14.Bg4 f5 15.Bh3 Be6 16.d3 Bd5 17.cd5 Bb4 18.Kf1 Na5 19.de4 de3 20.Qd4 Qa6 21.Kg1 ef2 22.Kf2 fe4 23.Kg1 Qb6 24.Be6 Kh8 25.Qb6 ab6 26.g3 Bc5 27.Kg2 Rf2 28.Kh3 Rb2 0–1. Pennell,Gary – Wall,Bill, Taylorsville, NC, 1975.

7.Be2 d6 8.Nc3 0–0 9.0–0 h6 10.d4+= Bb6 11.Nd5+/– Qd8 12.de5 de5 13.Ne5 Ne5 14.Be5 Nd5 15.cd5 Re8 16.Bg3 Bf5 17.Bf3 Rc8 18.Rc1 Qd7 19.Qb3 Be4 20.Be4 Re4 21.Rc8 Qc8 22.Rd1 Rc4 23.h3 Rc1 24.d6 Rd1 25.Qd1 Qd7 26.e4 f6 27.Qb3 Kh7 28.Kf1 Bc5? 29.Qd5 b6 30.Qf5 Qf5 31.ef5 b5 32.d7 Bb6 33.Bd6 Bd8 34.Ke2 Kg8 35.Kd3 Kf7 36.Ke4 g6 37.g4 h5 38.f3 h4 39.Kd5 a5 40.Kc6 gf5 41.gf5 b4 42.f4 (42...a4 43.Bb4+–) 1–0. Nokarookoff – WoodPusher83, ChessWorld.net, 2007.

7.Be2 e4 8.Ng5 =+.

5.e3 f6

6.c3 d5=+ 7.d4 Bd6 (7...Qb6 8.Bc1 ed4 9.ed4=) 8.Bb5 (8.de5 Be5 9.Ne5 fe5=) 8...Bg4 (8...Qa5 9.Qd3 e4 10.Bc6 bc6 11.Qe2 ef3 12.Qf3–+) 9.de5= Be5 10.Nbd2 Qb6 11.Qa4 Nge7 (11...Rd8 12.Ne5 (12.Qg4?! Qb5 13.Rb1 Rd7=) 12...fe5 13.Qg4 Qb5 14.Qg7 Qb2 15.Rd1+–) 12.Ne5 (12.Qg4 Qb5 13.Qg7 Rg8 14.Qh7 Qb2 15.Qh5 Kd8–+) 12...fe5= 13.c4 0–0? (better is 13...d4 14.ed4 ed4+/–) 14.c5!+– Qa5 (14...Qc5 15.Bc6) 15.Bc6 Qc5? (15...Nc6 16.Qg4 Rae8 17.Qd7 Qc5 A) 18.Qb7 Rb8 19.Ba3 Qc3–/+ (19...Rb7? 20.Bc5 Rfb8 21.Bd6+–); B) 18.Rc1+–) 16.Bd5! Qd5 17.Qg4 Rf2 18.Kf2 Qd2 19.Kg3 Qe3? 20.Qf3+– Qg5 ½–½. Lothal,G – Petzold,G, corr DDR, 1989.

6.Nc3 d5= 7.Na4 Bd6=+ 8.c4 dc4 9.Bc4 Nh6 10.h3 (10.Nc3 Bg4=) 10...Qe7 (10...e4 11.Nd4 Ne5 12.Rc1=+) 11.Nc3 Be6 12.Nd5 Qf7 (12...Qd7 13.Qb3 Bf7 14.Qd3=) 13.e4 (13.Qb3 Kd8 14.Nb6 Bc4 15.Nc4 Bb4+=) 13...0–0 14.Bc3 (14.Qb3 Kh8=) 14...Ne7 (14...Qg6!? 15.Ne7 Be7 16.Be6 Kh8=) 15.Ne7+= Qe7 16.Be6 Qe6 17.Qb3 Qf7 18.0–0 Kh8 (18...Rac8 19.Rab1=) 19.d4 ed4 20.Bd4 Qb3 (20...Rfe8 21.Rfe1=) 21.ab3+= a6 22.e5 (22.Rfd1 Nf7+=) 22...fe5= 23.Ne5 Nf5 24.Bb2 Rae8 (24...Rac8 25.Rac1=) 25.f4 (25.Rfe1 Re7=) 25...Ng3 (25...Bc5 26.Kh2 Bd4 27.Bd4 Nd4 28.b4=) 26.Rfe1 Bc5 (26...Rc8 27.Nd3=) 27.Kh2+= Bf2 28.Nf7 (28.Ba3!? Nh5 29.Re4+=) 28...Kg8= 29.Re8 Re8 30.Nd6 Re7 31.Be5 Ne2 (better is 31...Kf8=) 32.Ra4 (better is 32.Nf5!? Rd7 33.Ra2 Bg1 34.Kh1+=) 32...Bg3=+ 33.Kh1 Nf4! 34.Rc4 h5 35.Rc8 Kh7–/+ 36.Re8 Rd7 37.Rf8? Ng6 38.Bg3 Nf8 39.h4 Ne6 40.b4 Nd4 41.Nc4 Nc6 0–1. Schuehler,Ernst – Stabenow,Juergen, corr SOK–87–09, 1987.

6.Nc3 d5= 7.d4 ed4 8.ed4 Be7 =.

6.Nc3 d5= 7.Nh4 Nge7 8.Na4 (8.Qh5 g6 9.Qf3 0–0=+) 8...Bd6–/+ 9.Rb1 0–0 10.Bd3? (better 10.Nc3–/+) 10...e4–+ 11.Be2 Ng6?? (better 11...g5–+) 12.Ng6= hg6 13.c4 dc4 14.Bc4 Kh8 15.h4 Bf5 16.h5 g5 17.h6 g6 (17...g4 18.Bc3 Qd7 19.d3+–) 18.Nc3 Ne5 19.Be2 Nd3 (19...Kh7!?+=) 20.Bd3+– ed3 21.Qa4 (21.Qf3 Qe7 22.e4 Rae8+–) 21...a6 22.Nd5 b5 23.Qb3 Be5 (23...Kh7 24.f3+=) 24.Be5+– fe5 25.Nb4 Rc8 (25...a5 26.Nd5 Rb8+=) 26.Na6 (26.f3 g4 27.e4 gf3 28.gf3 (28.ef5 fg2 29.Qg8 Rg8 30.Rf1 Qh4 31.Kd1 gf1Q) 28...Be4 29.Qe6–+) 26...Qb6?? (better 26...Qf6 27.Qb2 Rc2–+) 27.Nb4+– (27.Qb5?? Qb5 28.Ra1 Qa6–+) 27...Qb7 28.f3 (28.Rh2 Qc7+–) 28...g4+– 29.Qb2 Rce8 30.Rf1 (30.0–0 g3 31.f4 Qh7+–) 30...gf3 31.Rf3 (31.gf3 Qe7 32.Rf2 Qg5=) 31...Kh7 (31...Qe4 32.Kf2 Bh3 33.Nd3 Rf3 34.gf3 Qd3 35.Rh1–/+) 32.Rc1 Be4 (32...Qe4 33.Rc7 Kh6–+) 33.Rf8+– Rf8 34.Qe5 Qf7?? (34...Rf7 35.Qg3 Qe7=) 35.Rc7+– Qc7 (35...Bf5 36.Rf7 Rf7 37.e4+–) 36.Qc7 Kh6 37.Qh2 Kg7 38.Qe5 Rf6 39.Qe4 g5 40.Nd3 1–0. FeegLood (2555) – Metamorfos (2315), lichess.org, 2015.

6.Nc3 Nge7 7.Ne4 Bb4 (7...d6 8.d4 ed4 9.ed4=) 8.a3 (8.c3 d5 9.Nf6 gf6 10.cb4 Nb4+=) 8...d5 9.Nf6 (< 9.ab4 de4 10.b5 ef3 11.bc6 fg2 12.Bg2 Nc6=+) 9...gf6 10.ab4 Nb4 11.Ba3 Nbc6 12.Be2 (12.Nh4 Be6+=) 12...Ng6 (12...Rg8 13.Rg1=) 13.0–0 Rg8 14.Kh1 Bg4 15.d4 (15.h3 Bf3 16.Bf3 f5=) 15...e4 (15...Qd7 16.h3 Bh3 17.gh3 Qh3 18.Nh2–+) 16.Nd2+= Be6 (16...Be2 17.Qe2 f5 18.Qh5+=) 17.c4 Nh4 18.g3 Bh3 19.Bh5 Ng6+= 20.Re1 Qd7 21.cd5 Qd5 22.Bg6 hg6+= 23.Qb1 0–0–0 24.Qe4 Qf7? 25.Rac1 Kb8?? 26.Rc6+– bc6 27.Rb1 Kc7 28.Qf4 (28...Kd7 29.Rb7 Ke8 30.Rf7 Kf7 31.Ne4+–) 1–0. Rodriguez,Alberto2 (2350) – Tovorovsky,A, ARG–chT Buenos Aires, 1997.

6.Bc4 d5=+ 7.Bb3 Nge7 8.0–0 0–0 (8...Bg4 9.h3 Bh5 10.d4 Bf3 11.Qf3 ed4 12.e4=) 9.d4= ed4 10.ed4 (10.Bd4 Nd4 11.Nd4 Bd6=) 10...Bd6 11.c4 dc4 (11...Bg4 12.Re1=) 12.Bc4 Kh8 13.d5 (13.Re1 Bg4=) 13...Ne5 (13...Na5 14.Nfd2=+) 14.Be2 (14.Ne5 fe5 15.Nc3 a6=) 14...Nf3 15.Bf3 Bf5 16.Nc3 a6 (16...Qc7 17.h3=) 17.Re1 Ng6 (17...Qc7 18.h3=) 18.g3 (18.Ne4!?+=) 18...Ne5=+ 19.Bg2 (19.Be4 Bg4 20.Qb3 f5=+) 19...Nc4 (19...Nd3 20.Re2 Be5 21.Na4=+) 20.Qb3=+ Nb2 21.Qb2 Be5 22.Rac1= b5 23.Qb3 Bd6 24.Ne4 Be4 25.Be4 Re8 26.Qf3 Rc8? 27.Rc6 Be5? 28.Rec1 Rc6+/– 29.Rc6 g6 30.Ra6 f5 31.Bc2 Bg7 32.Kg2 h6? 33.Rg6+– f4 34.d6 fg3 35.hg3 Rf8 36.Qe4 Qb6 37.Rh6! Kg8 38.Bb3 (38...Rf7 39.Qe8 Bf8 40.Qf7; 38.Rh8 Bh8 39.Qh7) 1–0. Shaidullina,Sandugach (2320) – Oganian,Roman (2215), RUS Cup Qualifier, 2004.

6.Bc4 d5=+ 7.Bb3 Bg4 8.h3 Bh5 9.Nc3 e4 10.g4 Bf7 (< 10...ef3 11.gh5 d4 12.Ne4+=) 11.Nh4 Nge7 12.Qe2 a6 (12...0–0 13.f3=+) 13.f3 ef3 14.Qf3 Ne5 15.Qg2 Nc4 16.Bc4 dc4 17.g5 f5 18.e4 (18.Qb7? Rb8 19.Qa6 Rb2 20.Nf5 0–0 (20...Nf5?! 21.Qc6 Kf8 22.Qc5 Ne7 23.0–0=+) 21.Ne7 Qe7–+) 18...fe4 19.Ne4 Bd4 20.Rb1 Qb6 21.c3 Be5 22.Nf3 Bc7 23.Qe2 0–0 (23...Bd5 24.Rf1–/+) 24.Rg1 (24.Nd4 Bd5–+) 24...Ng6 25.a3 (better is 25.Qe3–+) 25...Bd5 26.Nd4 (26.Kf1 Nh4 27.Nf6 gf6 28.gf6 Kh8 29.Qe7 Qf6 30.Qf6 Rf6 31.Re1 Nf3 32.Re3 Ng1 33.Ke1–+) 26...Nf4 27.Nf6 gf6 28.gf6 (28.Qf1 Nd3 29.Kd1 Nb2 30.Kc1 fg5 31.Rg5 Kh8–+) 28...Kh8 29.Qf1 Rf6 30.Kd1 Nd3 31.Qe2 Bf3! (32.Qf3 Rf3 33.Nf3 Nb2 34.Kc1 Nd3 35.Kc2 Qc6–+) 0–1. Bakkers,Max – Kreuzer,Uwe, corr SOK–91–76, 1991.

6.Bc4 d5=+ 7.Bb3 Bg4 8.h3 Bh5 9.g4 =+.

6.d4 Bb4 7.c3 Ba5 8.d5 Nce7–/+ 9.Be2 Qb6 10.Ba3 d6 11.Nfd2 Nd5 12.Ne4 Bc3 13.Nbc3 Nc3 14.Nd6 Kd8 15.Qd3 Bd7 16.Nf7 Ke8 17.Nh8 Rc8 18.Qh7 Ne2 19.Qg8# 1–0. marus – SOK, internet, 2001.

6.d4 ed4 7.ed4 Bd6 +=.

6.d4 Qb6

7.Na3?? Ba3 8.Ba3 Qa5 9.Nd2 Qa3 10.Qh5 (10.de5 fe5 11.Qg4 g6–+) 10...g6 11.Qh4 (11.Qd1 ed4 12.e4 Qc3–+) 11...Qc3 12.Rb1 Qc2 (12...ed4 13.Qe4 Nge7 14.Rb3 Qa1 15.Rb1 Qa2 16.ed4–+) 13.Bc4 g5 (13...ed4!? 14.ed4 Nce7 15.Qe4–+) 14.Qh5 Qg6 15.Qf3 ed4 16.Qd5 Nge7 17.Qb5 Qf5 18.Qb3 Na5 19.Bf7 Kf8 20.e4 Nb3 21.ef5 Nd2 22.Kd2 Kf7 23.g4 b6 24.Rhc1 Ba6 25.Rb4 d3 26.Rd4 Rac8 27.Rd7 Rc1 28.Kc1 Rc8 29.Kd1 Rc2 30.Ra7 Ra2 31.f3 Ke8 32.h3 Nd5 (33.Ra8 Kd7 34.Ra7 Kc6 35.Rf7 Nc3 36.Ke1 d2 37.Kf2 d1Q 38.Ke3 Qd3) 0–1. Dopper,Johan – Van der Veken,Richar, 1992.

7.Na3?? Qb2 8.Nb5 Bb4 9.Ke2 –+.

7.Na3?? Qb2 8.Nb5 Nb4 9.Nc7 Kd8 10.c4 Kc7. Dopper.

7.Bc3 Bb4 8.d5 +=.

7.Bc3 Bb4 8.de5 fe5 9.Bb4 Qb4 10.Nbd2. Dopper.

7.Bc3 Bb4 8.de5 fe5 9.Bc4 Qa5 10.Bb4+= Qb4 11.Nbd2 Nf6 12.Rb1 Qa5 13.0–0 (13.Rb5 Qc7=) 13...d5= 14.Bb5 e4 15.Nd4 Qc7 (15...Bd7 16.f3=) 16.c4 0–0 17.cd5 Nd4 18.ed4 Ng4 19.g3 Bf5 20.Rb3 Kh8 (20...Nf6 21.f3 ef3 22.Bc4+=) 21.f3 e3? (better is 21...ef3!? 22.Rbf3 Qb6=) 22.fg4+– Bc2 23.d6 Qc8? (better is 23...Bb3 24.dc7 Bd1 25.Rd1 ed2+–) 24.Rf8 Qf8 25.Qc2 Qf2 26.Kh1 ed2 27.Rb1 Qd4 28.Bd3 (28.Qd3 Qd3 29.Bd3 Rd8+–) 28...Qd6 (28...Qd5 29.Kg1 Qd6 30.Qd2 (30.Rb7 Qd4 31.Kg2 Qd5 32.Kh3 Qb7 33.Qd2 Rd8–/+) 30...Qd4 31.Kg2 Qd5 32.Kh3+–) 29.Qd2 (29.Rd1 Rf8+–) 29...Rd8 (29...Qd5 30.Kg1+–) 30.Rb3 (30.Re1 Qd5 31.Kg1 h6+–) 30...Qc6 31.Qg2 Qc1 32.Bf1 1–0. Gall,Zdenek – Blaszczak,Jan, corr 3GMM½–10, 1999. Marek’s remark: in some unserious collections Mr. Gall’s name is changed to “Gallagher” (sic!), which is absolutely wrong.

7.Bc3 Bb4 8.de5 fe5 9.Bc4 Nf6 10.a3 Bc3 11.Nc3 +=.

7.Bc3 ed4 8.ed4 Bb4 +=.

7.dc5 Qb2= 8.Nbd2 Qc3 9.Bc4 Na5 10.Bg8 Rg8 11.0–0 Qc5 12.Ne4 Qc7 (12...Qc6!? 13.Nd6 Ke7 14.Nf5 Kd8=+) 13.Qd5 Rf8 14.c4 Nc6 15.Nd6 Kd8 16.Rfd1 b6 17.Nb5 Qb8?? (better is 17...Qb7+/–) 18.Qc6+– (18...a6 19.Nc7 Qc7 20.Qa8+–) 1–0. De Visser,Arno – Wolfertz, corr SOK–87–07, 1989.

6.Be2 d5

7.0–0 Qb6 8.Ba3 =.

7.0–0 d4

8.ed4 ed4 9.Bb5 Nge7 10.c3 Qb6 11.Qa4 d3. Dopper.

8.ed4 Bd4 9.Bd4 Bd4 10.c3 Bb6 +=.

8.ed4 Bd4 9.Nd4 Nd4 10.Bd4 Qd4 11.c3 +=.

8.ed4 Nd4 9.Nd4 Bd4 10.c3 Bb6 11.d4 ed4 12.cd4 Be6 13.Bb5 Kf7+= 14.Re1 Ne7 15.Qe2 Qc8 16.Na3 Rd8 17.Rac1 Nc6 18.Qh5 Kf8 19.Qh7 Bd5 20.Nc2 Kf7?? 21.Qh5 Kg8 22.Bd3 Bc7 23.Bh7 Kf8 24.Ba3 Bd6 25.Qd5 Ne7 26.Re7 Bh2 27.Kh2 (27...Rd5 28.Rb7 Qc5 29.Bc5 Rc5 30.dc5+–) 1–0. Sviridov,Valentin – Pantaleyev,Dimitar, Havirov, 1968.

8.ed4 Nd4 9.Nd4 Bd4 10.c3 Bb6 11.d4 Be6 12.Bb5 Kf7 13.Bd3 +=.

8.ed4 Nd4 9.Nd4 Bd4 10.c3 Bb6 11.d4 Ne7 12.Qb3 Bf5 (12...Bd7 13.Rd1+=) 13.Na3 ed4 14.cd4 Rc8 15.Bc4 Kf8 (15...a6 16.Rac1+/–) 16.Rae1 Qc7 (16...Ba5 17.Re2 (17.Qb7 Be1 18.Re1 Rb8 19.Re7 Rb7 20.Rb7 Qa5–/+) 17...Qc7 18.Rd1+/–) 17.Bc3 a5 (17...Re8 18.Bb4 a5 19.Nb5+–) 18.Re3+– (18.Re3 Qd6 19.Nb5+–) 1–0. Dopper,Johan – Palmkoeck,William, corr TKM/A004, 2000.

5.Ne5?? Bf2

6.Kf2 Ne5?? 7.Be5+– (7...Qg5 8.Bb2+–) 1–0. rookie2 – Klaus Behrmann, ChessWorld.net, 2004.

6.Kf2 Qf6 7.Ke1 Ne5 8.d4 Ng6 9.d5 Qb2 10.Nd2 Qd4 11.g3 Qd5 12.Rg1 Ne5 13.Bg2 Qd4 14.Rb1 Qg1 0–1. Nautiluschess – Bemused, ICS blitz, 2001.

6.Kf2 Qf6 7.Nf3 Qb2 =.

6.Kf2 Qf6 7.Kg3 Ne5 =.

6.Kf2 Qb6

7.d4 Qb2 8.Nd2?? (8.Nc6 Qa1 9.Ne5–+) 8...Qd4 (8...Qd4 9.e3 Qe5–+) 0–1. GuestJTHK – GuestFWBS, freechess.org, 2017.

7.Ke1 Qb2 8.Nc3 Ne5 9.a3 Qb6 10.e3 Qf6 (10...Nf6 11.Be2–+) 11.Ne4 (11.d4 Nc6–+) 11...Qd8 (11...Qh4!? 12.Nf2–+) 12.Nd6 Kf8 (12...Ke7!? 13.d4 Qa5 14.Kf2–+) 13.d4 Ng6 14.Bc4 (14.Qf3 Qe7 15.Qg3 Nf6–+) 14...Qc7 15.Nf7 Qc4 16.Nh8 Nh8 17.Qd3 Qd3 (17...Qe6 18.d5 Qh6 19.Kf2–+) 18.cd3 Nf6 19.Rf1 d5 20.e4 Nf7 21.e5 Ne8 22.h3 Be6 23.Kd2 Ke7 24.Ke3 Nd8 25.Rf2 Nc6 26.Raf1 Nc7 27.Rd1 (27.Rb1 Rb8 28.Rfb2 Bc8–+) 27...Rd8 (27...Bc8 28.Rb1–+) 28.Rdf1 Na6 (28...Nb5 29.Rb1 Nbd4 30.Rb7 Rd7 31.Rd7 Bd7 32.Rb2–+) 29.Kd2 (29.Rb1 Rb8–+) 29...Nab8 (better 29...Nd4!? 30.Ke3 Nb3 31.d4–+) 30.Ke3 Nd7 31.Kd2 (31.g4 Rf8–+) 31...Nf8 (better 31...Nd4!? 32.Ke3 Nb3 33.d4–+) 32.Ke3 Ng6 33.g4 Nh4 34.Rf4 (34.Rb2 Rd7–+) 34...g5 (better 34...Ng2 35.Kd2 Nf4 36.Rf4 g5–+) 35.R4f2 Ng6 36.Rf6 Nf4 37.h4 (37.Rb1 Bc8 38.Rh6 Rh8–+) 37...h6 (37...Ng2!? 38.Kd2 Nh4 39.Rh6–+) 38.hg5? (38.Rf2–+) 38...hg5 39.Rh6 Rf8 (39...Bg4?! 40.Rg1 Nd4 41.Rh7 Ke6 42.Rg4 Nf5 43.Kd2–+) 40.Rh7 Rf7 41.Rh6 (41.Rf7 Kf7 42.Rb1–+) 41...Ng2 42.Ke2 (42.Kd2 Rf1 43.Rh7 Bf7–+) 42...Nd4 43.Kd2 Rf1 44.Rh7 Kf8 (better 44...Rf7 45.Rf7 Kf7–+) 45.Rh2 Rf2 (45...Nf3 46.Kc2 Ne3 47.Kb2 Nh2 48.Kc3 Nhg4 49.a4 d4 50.Kd4 Rc1 51.a5 Nf5 52.Ke4 Re1 53.Kf3 Nh4 54.Kg3 Re3) 46.Kc3 Nb5 47.Kb4 Nc7 (47...Rb2 48.Kc5 Na3 49.Rh8 Kf7 50.Rh7 Kg6 51.Rh2–+) 48.Rh8 Ke7 49.Rb8 Bf7 (49...Na6 50.Kc3 Nb8 51.d4 Rf3 52.Kb2 Ne3 53.Kc1 Nc4 54.Kd1 Bg4 55.Kc2 Bf5 56.Kd1 Bd3 57.Ke1 Rf1) 50.Kc5 Na6 51.Kd4 Nb8 52.e6 (52.Kc3 Ne3 53.e6 Nd1 54.Kb4 Na6 55.Ka5 Ra2 56.a4 Nc3 57.ef7 Ra4) 52...Nc6 (52...Rc2 53.Kd5 Bg6 54.a4 Nc6 55.d4 Nf4) 53.Kc5 (53.Kc3 d4 54.Kb3 Ke6 55.Ka4 a6 56.Kb3 Ke5 57.Ka4 b5) 53...Be6 54.d4 (54.a4 Rb2 55.a5 Nf4 56.d4 Nd3) 54...Rc2 (54...Rb2 55.a4 Ne1 56.a5 Nd3) 55.Kb5 a6 (55...Rb2 56.Kc5 Nf4 57.a4 Nd3) 56.Ka4 Rb2 (56...b6 57.Kb3 Nd4 58.Kb4 Rc4) ½–½. FeegLood (2845) – Arka50 (2735), lichess.org, 2015.

7.e3 Qb2 8.Nc3 Ne5 9.Rb1 Qa3 10.Rb3 (Better is 10.Nb5 Qa5 11.d4–+) 10...Qe7 11.Nd5 Qd6 12.e4 Nf6 13.Nc3 (13.Nf6 Qf6 14.Kg1–+) 13...Qd4 14.Ke1 0–0 15.Nb5 Qe4 16.Re3 Qf5 17.g4 (17.Nd6 Qf4 18.g3–+) 17...Neg4 18.Qe2 Qc2 19.Nc3 (19.h3 Ne3 20.de3–+) 19...Ne3 20.Qe3 Re8 0–1. rookie2 – marekt, ChessWorld.net, 2003.

7.e3 Qb2 8.Nc6 Qa1 9.Nd4 Nf6 10.Bc4 0–0 11.c3 d5 12.Bb3 Ne4 13.Ke1 Be6 14.Rf1 Qb2 15.Qc2 Qc2 16.Bc2 Rac8 17.Na3 a6 18.Rf4 Nf6 19.Nf5 Rc5 20.Bb3 Bf5 21.Rf5 Rfc8 22.Nc2 a5 23.Ke2 b5 24.Nd4 a4 25.Bd1 Rb8 26.Rf4 b4 27.Ba4 bc3 28.Bb3 c2 29.Bc2 Rb2 30.Kd3 Ne4 31.a4 g6 32.h3 h5 33.g4 hg4 0–1. Van Esbroeck – Hjortstam, email 4AMM–03 1997.

7.e3 Qb2 8.Nc6 bc6?! 9.Nc3 =.

7.e3 Qb2 8.Nc6 dc6?! 9.Nc3 =.

4.Nf3 Qc7

5.Nc3 Bc5 6.Nd5 Qd8? 7.Ne5+– (7.Be5?! Ne5 8.Ne5 Qa5+=) 7...Ne5 (7...Nf6 8.Nc6 dc6 9.Nf6 gf6 10.e3+–) 8.Be5+– Nf6?? (better 8...Kf8+–) 9.Nc7 Ke7 10.Na8 Ng4 11.Bg3 h5 (11...d6 12.Rb1 Bd7 13.d4 (worse 13.Rb7 Qa8 14.Rb2 Nf6+–) 13...Qa5 14.Qd2 Qd2 15.Kd2 Bd4 16.e3+–) 12.e3 h4 (12...d6 13.Qf3+–) 13.Qg4 (better 13.Bc7!? Qg8 14.Qg4 d6 15.Qe4 Be6 16.Qb7 Bd7 17.Bd6 Bd6+–) 13...hg3 14.Qg5 Ke8 (14...f6 15.Qg7 Kd6 16.Qg3 Ke7 17.Nc7+–) 15.Qc5 Qe7 (15...d6 16.Qb5 Bd7 17.Qb7 Rh2 18.Rh2 gh2 19.g3+–) 16.Qe7 (better 16.Qc8 Qd8 17.Nc7 Ke7 18.Nd5 Kd6 19.Qb7 gf2 20.Kf2 Qc8+–) 16...Ke7 17.fg3 b6 18.Nc7 Bb7 19.Nb5 Bc6 (19...a6 20.Nd4 Kd6 21.a3+–) 20.Nd4 (20.Na7!? Bb7+–) 20...Bd5 21.Kf2 Be6 22.Bd3 Bd5 (22...Rc8 23.a3+–) 23.Nf5 Ke6 (23...Kf8 24.e4 Be6 25.a4+–) 24.e4 Kf6 25.ed5 Rc8 26.Rae1 Rc7 27.Rhf1 g6 28.Kg1 gf5 29.Rf5 Kg7 30.Re7 Kf8 (30...Kg6 31.Rff7 Kh6 32.Rf6 Kg5 33.Rg6 Kh5 34.Re5) 31.Rff7 Kg8 32.Bh7 Kh8 33.Rf8 1–0. FeegLood (2695) – Zonthoria (2060), lichess.org, 2015.

5.d4 ed4 6.Nd4 Nf6 7.Ba3 Qa5 8.c3+= Bc5? 9.e3?? Ba3–+ 10.Na3 Qa3 (11.Nb5 Qc5–+; 10...Qc3 11.Ke2 Qa3 12.Nb5 Qb2 13.Ke1–+) 0–1. jordan2delta – dusterstar, internet, 2006.

5.e3 Bc5

6.Na3 Ba3 7.Ba3 Nf6 8.Be2 =.

6.Nc3 Nf6 7.Nb5 Qb8 8.d4 ed4 9.Nbd4 0–0 10.Nc6 bc6 11.Bf6 gf6 12.Bd3 Bb4 13.Nd2 Qe5?? (better is 13...Bd2 14.Kd2 Qe5+/–) 14.Qg4+– Kh8 15.Qb4 c5 16.Qh4 f5 17.0–0 d5 18.Qh6 Be6 19.Qh5 Rg8 20.Rfd1 Rg6 21.Nf3 Qf6 22.Qh4 Qg7 23.g3 Rg4 24.Qe7 Rg8 (24...c4 25.Be2+–) 25.Qc5 h5 (25...f4 26.Qa7 fg3 27.hg3 Rg3 28.fg3 Qg3 29.Kf1 Qf3 30.Ke1+–) 26.Kh1 (26.Qa7 f4 27.Qd4 fe3 28.Qe3 Ra4+–) 26...h4 (26...f4 27.h3 Rg3 28.fg3 Qg3 29.Qd4 Rg7 30.Ng5 Qg5 31.Rg1+–) 27.h3 hg3 28.hg4 fg4 29.Nh4 gf2 30.Kg2 g3 (30...Qf6 31.Rh1 Kg7+–) 31.Rh1 (31...Re8 32.Nf5 Kg8 33.Ng7+–) 1–0. b4_player (2220) – lisarik (1950), GameColony.com, 2003.

6.Nc3 Nf6 7.Bc4 0–0 8.0–0 d6 9.Ng5 h6 10.Nge4 Ne4 11.Ne4 Bb6 12.f4 Ne7 13.Bb3 ef4 14.Rf4 d5 15.Nf2 Be6 16.Qf3 Bc5 17.Rh4 f5 18.Nd3 Bd6 19.Rf1 Qc6 20.Nf4 Bf7 21.Qh3 Kh7 22.Bg7?? Kg7–/+ 23.Rh6 Rh8 24.Rh4 Rh4 25.Qh4 Rg8 26.Nh5? Bh5–/+ 27.Qh5 Kf8?? 28.e4?? Bc5 29.Kh1 Qg6 30.Qe2 Qg4 31.Qg4= Rg4 32.ed5 Kg7 33.h3 Re4 34.c3 Kg6 35.d3 Re3 36.d4 Bd6 37.c4 b6 38.Rc1 Rd3 39.c5 Bf4 40.Re1 Be3?? 41.d6+– Nc6 42.d5 Nd8? 43.c6 Rc3 44.c7 Nf7 1–0. De Kruif,K (2010) – Knight,Tim, Guernsey Open, 2010.

6.c4 Nf6 7.Na3 (7.Nc3 d6=) 7...a6 8.Be2 0–0 9.0–0 d6 (9...e4 10.Nh4+=) 10.Nc2 Bf5 11.Rc1 Rac8 12.d4 ed4 (12...Bb6 13.a3=) 13.Ncd4 Nd4 14.Nd4 Bg6 15.Bd3 Bh5 16.Qc2 Rfe8 17.Nf5 Bg6 18.Nh6 Kf8 19.Bg6 (19.Bf6 gf6 20.Rb1 b6+/–) 19...hg6 (better is 19...fg6 20.Qd1 Qc6=) 20.Qc3?? (better is 20.Bf6!? gf6 21.Rb1+=) 20...Qd7 (better is 20...Re6!? 21.Nf7 Qf7–+) 21.h3+= Re5 22.Ng4 Ng4 23.hg4 Qg4 24.Rfe1 f6 25.Qd3 Rh5 26.Bd4 Bd4 27.ed4 Qh4 28.f3 Qg3 29.Qe4+= ½–½. Fournier,Frederic – Robeson,Christian, Train France (FRA), 1999.

6.Bc4 Nf6 7.Na3 (7.d4!? ed4 8.Nd4=) 7...d5+= 8.Bb5 Bd6 (8...Bg4 9.h3 Bf3 10.Qf3+=) 9.c4 0–0 10.0–0 (10.cd5 Nd5 11.Bc4 Nb6+=) 10...Qe7 (10...e4 11.cd5 Nd5 12.Ng5–/+) 11.Nc2 (11.cd5 Nd5 12.Nc4 e4 13.Nd6 Qd6=) 11...a6 (11...dc4 12.Bc4 e4 13.Nfd4 Bh2 14.Kh1–/+) 12.Bc6+= bc6 13.cd5 (13.d4 e4 14.Ne5 Be6+=) 13...cd5 14.Rb1 (14.d4 e4 15.Ne5 Bd7+=) 14...Bg4–/+ 15.h3 Bh5 16.d3 Rfc8 17.g4 Bg6 Black plans e4 18.Nce1 (18.Nh4 Rc6–/+) 18...h5 (18...Nd7 19.a4–+) 19.g5 (better is 19.Nh4!?+=) 19...Nd7 20.h4 (20.Ng2 Qe6 21.Ngh4 Qh3 22.Ng6 Qg4 23.Kh1 fg6–+) 20...Qe6 21.Kg2? (21.Ng2 Rab8–+) 21...e4 (21...Qg4 22.Kh1 e4 23.Nh2 Qh4 24.f4–+) 22.de4? (better is 22.Nd4 Qe7 23.a4–+) 22...Be4 23.Qd4 Be5 (23...Be5 24.Qe4 de4 25.Ne5 Ne5 26.Be5 Qe5–+) 0–1. Fournier,Frederic – Robeson,Christian, Active, 1999.

6.Na3 d5

7.Nb5 Qe7 8.Ne5 Ne5 9.Be5 Qe5 +=.

7.c4 d4 8.Nb5+= Qe7 (8...Qd8 9.Ne5 Ne5 10.ed4 Nc4 11.Bc4+/–) 9.ed4+/– e4 (better is 9...Nd4 10.Nfd4 ed4 11.Qe2 Kd8+/–) 10.Ne5 (better is 10.Ng1 Bb4 11.c5+/–) 10...Nd4= 11.Nf7 Qf7?? (better is 11...Nf3! 12.gf3 Kf7 (12...Qf7? 13.Bd4 Qe7 14.Bc5 Qc5 15.fe4+–) 13.fe4 Qe4 14.Qe2 Qh4+/–) 12.Bd4+– (12.Nd4?! Nh6=) 12...Qe7?? (better is 12...Qf5+–) 13.Qh5 (13.Qh5 Kd8 14.Qd5 Qd7 15.Qd7 Bd7 16.Bg7+–) 1–0. Fournier,Frederic – Robeson,Christian, Train France (FRA), 1999.

7.c4 d4 8.ed4 (8.Nb5!? Qd8 9.Ne5 Ne5 10.ed4 Nc4 11.Bc4+/–) 8...ed4= 9.Nb5 Qe7 (better is 9...Qb6!? 10.Qb3 Nf6+=) 10.Qe2+/– Bb6 (10...Kd8 11.Nbd4 Nd4 12.Nd4+/–) 11.Nfd4 (11.c5!? Bd8 12.Nd6 Kf8 13.Nd4+–) 11...Nd4+/– 12.Bd4 Bd4 13.Nd4 Bg4 14.f3 Bh5 (14...Bd7!?+/–) 15.Nf5+– Qe2 16.Be2 Kf8 17.Kf2 (17.Nd6 b6+–) 17...Bg6 (17...Rd8 18.d3+/–) 18.Ne3 (18.Nd6 b6 19.d4 Ne7+–) 18...Ne7 (18...Rd8!?+/–) 19.d4+– f5 (19...Rd8 20.Rad1+–) 20.Rhd1 (20.f4!? Rd8 21.Rhd1 b6+–) 20...f4 21.Ng4 Nc6 22.Ne5 Ne5+/– 23.de5 Ke7 24.Rd6 Rac8 25.g3 fg3 26.hg3+– Rc5 27.Rad1 Bf5 28.g4 Be6 29.f4 Rf8 1–0. Fournier,Frederic – Robeson,Christian, Train France (FRA), 1999.

7.c4 Nf6 8.cd5 Nd5 9.Bb5 =.

7.c4 Nf6 8.cd5 Nd5 9.Rc1 =.

4.Nf3 e4

5.Ne5 Nf6 6.e3 Bc5 7.c4 (7.Ng4!?=) 7...Ne5=+ 8.Be5 0–0 9.Be2 (9.Nc3!? Re8 10.Bf6 Qf6 11.Nd5=) 9...Re8=+ 10.Bb2 d5 11.cd5 (11.d4 ed3 12.Qd3 Qb6=+) 11...Nd5–/+ 12.Nc3 Nc3 13.Bc3 Qg5 14.g3 b6 (14...Be6 15.d4 Bd6 16.Qa4–/+) 15.0–0 (15.d4 Bd6=+) 15...Rd8 (15...Bh3 16.f4 Qg6 17.Rf2–/+) 16.Qa4 Bb7 17.Bc4 (17.f4 Qf5–/+) 17...a6 18.Qb3 Rd7 19.Rfd1 (19.a4 Rc8–/+) 19...Rad8 (19...b5 20.d4 bc4 21.Qa4–+) 20.a4–/+ h6 (20...Bd5 21.Bd5 Rd5 22.Qc4=+) 21.Rab1 Bd5 22.Bb4 Qf6 23.Bc5 bc5 24.Bd5 Rd5 25.Qc2 Qf3 26.Rb3 Rd3 27.Rd3 ed3 28.Qb1 Qe2 29.Rc1 Qd2–/+ 30.Rc5 Rd7 31.Qb8 Kh7–/+ 32.Qe8 Qd1 33.Kg2 Qg4 34.Rc4 Qe6 35.Qe6 fe6 36.Rc1 Kg6 37.f4 Kh5 38.Kf3 g6 39.h3 g5 40.g4 Kh4 41.Rd1 gf4 42.ef4 Rd4 43.f5 ef5–/+ 44.gf5 Kg5 45.Ke3 Rh4 46.Kd3 Kf5 47.Rb1 Rh3 48.Kc4 Rh4–+ 49.Kb3 Re4 50.Rc1 h5–+ 51.Rc8 h4 52.Rh8 Kg5 53.Ka3 Re6 54.Kb4 Rh6 55.Rg8 Kh5 56.Ka5 h3 57.Rg1 h2 58.Rh1 Kg4 59.Rh2 Rh2 60.Ka6 Rb2 61.a5 Kf5 62.Ka7 Ke5 63.a6 Kd6 64.Ka8 Kc6 65.a7 Rd2 66.Kb8 Rd8 0–1. Kreuzer,Martin (2285) – Fritz3, 45min chk, 1995.

5.Ng1 Bc5?? 6.Bg7+– Bd4 7.Bd4 (7.Bh8!? Bh8 8.c3+–) 7...Nd4+/– 8.Nc3 d5 9.e3 Nf5 (9...Nc6 10.Nge2+/–) 10.g3 (10.Bb5 Bd7+/–) 10...Be6 (10...Nf6 11.f3+=) 11.Bg2 Nf6 12.Nge2 (12.f3 d4 13.ed4 e3+/–) 12...0–0 (12...Rg8 13.0–0+=) 13.0–0 Kh8 (13...Re8 14.Rb1+/–) 14.d3 (14.f3 Nd6+/–) 14...ed3 (14...Qb6 15.Qd2 Rad8 16.Rab1+/– (< 16.de4 de4 17.Qe1 Qc6=)) 15.cd3 (15.Qd3 Rc8+/–) 15...Qc7 (15...d4 16.ed4 Nd4 17.Rb1+/–) 16.d4 (16.Qa4 Rfc8+–) 16...Rg8 17.Rc1 Qb6 (17...Qd7 18.Nf4 Rac8 19.Qa4+–) 18.Nf4 Rae8 (better is 18...Ne7+–) 19.Nfd5 Nd5 20.Nd5 Bd5 21.Bd5 Rg7 22.Qb3 Qf6 23.Rc7 Rf8 24.Qb7 h5 25.Rc6 Qg5 26.Bg2 h4 27.Rc5 hg3 28.fg3 f6?? 29.Rcf5 Qe3= 30.Kh1 Rb7 31.Bb7 Qd4 32.Rh5 Kg7 33.Rhf5 Rb8 34.Bg2 Rb2–/+ 35.R5f4 Qd2 36.Rg1 Qd6?? 37.Re4? Ra2–+ 38.Rge1 a5 39.Re7 Kh6 40.R7e6 Qd4 41.R6e4 Qf2 42.Rg1 a4 43.Rh4 Kg5 44.Rf4 a3 45.Rf2+– Rf2 46.Ra1 a2 47.Kg1 f5?? 48.Bd5 f4 (49.Kf2 Kf5+–; 48...Rd2 49.Ba2 f4 50.h4 Kg4 51.gf4 Kg3+–). SOULESSNURSE – schmltngacident, Live Game Caissa's Web, 2005.

5.Ng1 f5 6.e3 Nf6 7.d4 ed3 8.Bd3 Bc5 9.Nf3 d5 10.0–0 0–0 11.Nbd2 Ne4 12.Nb3 Bd6 13.c4 Be6 (13...dc4 14.Bc4 Kh8 15.Nbd4+=) 14.Nfd4 Nd4 15.Nd4 Qd7 16.Ne6 Qe6 17.cd5 Qd5? (better is 17...Qh6 18.h3 Rac8+/–) 18.Be4 fe4 (18...Bh2 19.Kh2 Qe4 20.Qb3 Rf7+–) 19.Qd5 (19…Rf7 20.Qd6+–) 1–0. b4_player (2005) – Tittititti, GameColony.com, 2002.

5.Ng1 Nf6 6.d4=.

5.Nd4 Bc5??

6.Nb3 Qb6 7.e3 Bf8 8.c4 d6 9.d3 ed3 10.Bd3 Ne5 11.0–0 Bg4 12.Be2 (12.Qc2 Nf6+=) 12...Be2 13.Qe2 Nf6 14.f4 Ned7 15.Bd4 Qc6 16.Nc3 Be7 (16...Rc8 17.Rac1+/–) 17.e4 (17.Nd5 Nd5 18.cd5 Qd5 19.Bg7 Rg8+/–) 17...0–0+= 18.e5 (18.Nd5 Rfe8+=) 18...de5 19.fe5 (< 19.Be5 Rfe8 20.Rad1 Rac8=+) 19...Ne8 20.Nd5 Bd8 (20...Ba3 21.Rad1 Rc8 22.Ba7 Qc4 23.Qc4 Rc4 24.Ne7 Be7 25.Rd7+/–) 21.Na5 Qa6 22.Nb7! Qb7 23.e6 Bf6 (23...Nef6 24.e7 Be7 25.Rab1+= (< 25.Qe7 Nd5 26.cd5 Qd5=; 25.Ne7?! Kh8+/–)) 24.Nf6 Nef6 25.ed7 Nd7 26.Rae1 f6 27.Qe6 Rf7 (27...Kh8 28.Qd5 Qd5 29.cd5+/–) 28.c5 Nf8 29.Qc4 Rc8 30.Bf2 (30.Re3 Kh8+=) 30...Qc7 31.Kh1 Ng6 (31...Qd7 32.Bg3+/–) 32.Bg3 Ne5? (better is 32...Qd7+/–) 33.Be5+– fe5? (33...Qc5 34.Qc5 Rc5+–) 34.Rf2 Kf8 35.Rf7 (35...Qf7 36.Rf1 Qf1 37.Qf1 Ke7 38.Qc4+–) 1–0. Ruhle,Ernst_Olav – Feilmayr,Erwin, corr ICCF TT–6–02, 2007.

6.Nb3 Bf8 7.Nc3 =.

6.Nb3 Bf8 7.e3 Nf6 8.Be2 Be7 9.0–0 0–0 10.c4 d5 11.d4 Qc7 12.Nc3 dc4 13.Nd2 Na5 14.Nde4 Ne4 15.Ne4 b5 16.d5 Rd8 17.Qd4 f6 18.d6 Bd6? 19.Qd5+– Kf8 20.Nd6 Bb7 21.Nb5 Qe7 22.Qf5 Rd5 23.Qd5! (23.Qd5 Bd5 24.Ba3 Qa3 25.Na3+–; 23.Qh7?! Rb5 24.Bc3 Qe4 25.Qe4 Be4+–) 1–0. Osmak,Iulija (1875) – Tkachova,A (1855), ch–UKR g18, Kyiv UKR, 2010.

6.Nc6 bc6?? 7.Bg7+– Qg5 (7...Bd4 8.Bd4 Nf6 9.c4+–) 8.Bh8 Qf5 (8...d5 9.Nc3+–) 9.e3 f6 (9...Nf6 10.d4 Be7 11.Nd2+–) 10.c3 (10.d4 Be7+–) 10...d5 11.d4 Bd6 (11...ed3 12.Bd3 Qg5 13.0–0+–) 12.Nd2 (better is 12.c4!? Nh6 13.Be2 Qg5+–) 12...h5 13.Be2 (13.c4!? Qh7 14.Qa4 Bd7 15.cd5 cd5+–) 13...Qh7 14.Bh5 Ke7 15.Bg4 Ba6 16.Qa4 Bb5 17.Qb3 Rb8 18.Ne4 Qe4 19.Qd1 Qh7 20.a4 Bd3 21.Rc1 Rb2 22.Qf3 Qh8+= 23.Bf5 Bc4 24.h4 Nh6 25.Qh5?? Re2–+ 26.Kd1 Rf2 27.g4?? Rg2 28.Rb1?? Be2 29.Ke1 Bg3 30.Kd2 Bg4 31.Kc1 Bh5 32.Rb7 Kf8 33.Bd7 Qh7 (34.Rb2 Bf2–+) 0–1. Zylla – Bonath, BSF–VM Winterturnier, 1996.

6.Nc6 dc6 7.Bg7+/– Qb6 8.e3 Be3 9.fe3 Be6 10.Bh8 0–0–0 +–.

6.Nc6 dc6 7.Bg7+/– Bd4 8.Bh8+– Bh8 9.Nc3 (9.c3 Be6+–) 9...Bc3 (9...Be5 10.Ne4 Ba1 11.Qa1+–) 10.dc3 Qd1 (10...Be6 11.a3+–) 11.Rd1 Bd7 (11...Be6 12.a3+–) 12.e3 0–0–0 (12...Be6 13.a3+–) 13.Bc4 f5 14.Bg8 (14.a3 b5 15.Bf7 Nf6+–) 14...Rg8 15.0–0 (15.Rg1 Be6+–) 15...Be6 16.a3 f4 17.ef4 Bg4? 18.Rd4+– Bh3 19.g3 Bf1+/– 20.Kf1 Re8 21.Ke2 c5 22.Rc4 b6 23.Ke3 Kc7 24.Re4 Re4 25.Ke4 Kc6 26.Ke5 Kb5 27.f5 Kc4 28.f6 Kc3 29.f7 Kc2 30.f8Q c4 31.Kd4 c3 32.Qb4 Kd1 33.Qc3 Ke2 34.Qd3 (34...Kf2 35.Qh7 Kg2 36.g4 Kf3 37.Qa7 Kg4 38.Qb6 Kh3 39.Qh6 Kg2 40.a4 Kf2 41.Qf4 Ke2 42.a5 Kd1 43.Kd3 Ke1 44.a6 Kd1 45.Qd2) 1–0. Zdziarski,Zbigniew – Milne,Scott, O–1596 IECC, 2003.

6.Nf5 Qb6 7.e3?? (better 7.Qc1 Bf2 8.Kd1=+) 7...Qb2–+ 8.Nc3 Nb4 9.Rb1 Qc2 (9...Nc2?! 10.Ke2 Ne3 A) worse 11.Rb2 Nd1 12.Kd1 Nf6–+ (12...Bf2?! 13.Ne4 d5 14.Ned6 Kf8 15.Nc8 Rc8 16.Rb7=); B) 11.fe3=+) 10.Qg4 Ne7 (better 10...Na2 11.Qe4 Qe4 12.Ne4–+) 11.Nd4? (11.Ng7 Kd8 12.Qe4–+) 11...Bd4 12.ed4 Na2 13.Qe4 Qe4 14.Ne4 Nc6 15.Nd6 Ke7 16.Nc8 (16.Nf7 Kf7 17.Bc4 Kf6 18.Ba2 Re8 19.Kd1 Nd4–+) 16...Rhc8 17.Bc4 (17.Rb7 Nd4 18.f4 a5–+) 17...Nab4 18.0–0 (18.Kd1 d5 19.Bb5 a5 20.Bc6 Rc6 21.Re1 Kd6–+) 18...d5 19.Bb5 a5 20.Rfe1 Kd6 21.Bc6 Rc6 22.h3 (22.Rb3 Nc2 23.Rc1 a4–+) 22...Nc2 (22...b5 23.Re3–+) 23.Rec1 (23.Re5 Ra7 24.Rb5 Nb4–+) 23...Nd4 24.Re1 (24.Rc6 Kc6 25.f3 b5–+) 24...b5 25.Re3 (25.Rb2 b4 26.Reb1 Rb6–+) 25...a4 26.Rd3 Rc4 27.g3 (27.Ra3 b4 28.d3 ba3 29.dc4 Nc2–+) 27...a3 28.Ra1 b4 29.Kg2 a2 30.g4 b3 31.Rc3 Rc3 32.dc3 b2 33.Ra2 Ra2 34.cd4 (34.Kg1 b1Q 35.Kg2 Qe1 36.cd4 Qf2 37.Kh1 Qe1) 34...b1Q (34...b1Q 35.g5 Qe4 36.Kg3 Ra3 37.Kh2 Qf3 38.h4 Qf2 39.Kh1 Ra1) 0–1. Meraiya,Harshil (1635) – Migliorini,Roberto (1895), FICGS, 2010.

6.Nc6 Qb6

7.Qc1 bc6?! 8.e3 Bf8 9.d3 =.

7.Qc1 Bf2 8.Kd1 f6 (8...Qc6?? 9.Bg7 Bd4 10.Bd4+–; 8...bc6?! 9.Bg7 Bd4 10.Bh8 Bh8 11.c3=) 9.e3 dc6 (9...Qc6?! 10.g3 Nh6 11.Ke2=) 10.Be2 Bh4 11.g3 Bg5 12.Nc3 Qd8 (12...f5 13.Bh5 Kf8 14.Ba3 Ne7 15.Rf1–/+) 13.Ke1 (13.Ne4 Be3 14.Re1 Bd4=+) 13...Qe7 14.Nd1 (14.Kf2 Bh3–+) 14...f5 (14...Qf7 15.Nc3 Qg6 16.h4–/+) 15.Nf2 Bf6 16.Bf6 Nf6 17.Rf1 Be6 18.Nh3 h6 19.Nf4 Bf7 20.Qd1 0–0–0 21.c3 Qd6 22.d4 ed3 23.Nd3 Rhe8 24.Qd2 g6 25.Rd1 Qe7 26.Rf3 Ng4 27.h3 Ne3 28.Rc1 Bd5 29.Rf2 Bc4 30.a4 Bd3 31.Bd3 Nc4 32.Qe2 Rd3 (33.Qe7 Re7 34.Re2 Re2 35.Ke2 Rg3–+; Better is 32...Qa3 33.Rb1 Qc3 34.Kf1 Re2 35.Be2 Nd2 36.Kg2 Nb1 37.g4–+) 0–1. Hasler,Ulrich – Feilmayr,Erwin, corr ICCF TT/2/06, 2004.

7.Bd4 bc6 8.Bc5 Qc5 9.Nc3 d5 10.e3 Nf6 11.Be2 0–0 12.0–0 Be6 13.Rb1 Rab8 14.f3 d4 15.Ne4 Ne4 16.fe4 Ba2 17.Rb8 Rb8 18.Qa1 Be6 19.Qd4 Qc2 20.Qa7 Rc8 21.Qd4 c5 22.Qd3 Qd3 23.Bd3 Rd8 24.Ra1 g6 25.Ra3 c4 26.Bf1 Rd2 27.Rc3 Rd7 28.Kf2 Kg7 29.Kf3 Kf6 30.g3 h5 31.h4 Rd2! 32.g4 Bg4 33.Kg3 Be2 34.Be2 Re2 35.Kf4 Rh2 36.Kg3 Rh1 37.Rc4 Rg1 0–1. Wartig – Feilmayr, corr SOK–96–114 1996.

7.Bd4 Bd4 8.Nd4 Qd4 9.Nc3 Nf6 10.e3 Qe5 11.Bc4 0–0 12.0–0 d5 13.Bb3 Ng4 14.g3 Nf6 15.Qe2 Bg4 16.Qb5 Bf3 17.Nd5 Nd5 18.Qd5 Qd5 (Better is 18...Qf6!?=+) 19.Bd5+= Rab8 20.d4 Rfe8 21.Bb3 b5 22.Rab1 a5 23.a3 ½–½. Swiatek,Agata – Gorecka,Joanna, Poland–ch U12 Girls, 1998.

7.e3 Qb2 –+.

5.Nd4 Qf6

6.e3 Bc5 7.c3 a6 8.Nc6 bc6 9.g3 (9.Qc2!?=) 9...Ne7 10.Bg2 (10.Ba3 Ba3 11.Na3 d5+=) 10...d5 (10...Rb8 11.Ba3 Rb1 12.Rb1 Ba3 13.Qa4–/+) 11.0–0 (11.Ba3 Ba3 12.Na3 Qd6+=) 11...Ng6 (11...Rb8!? 12.Qc1 Bg4–/+) 12.Qc2 Bd6 13.c4 Be5 (13...Ne5 14.Be5 Be5 15.Nc3 Bc3 16.dc3=) 14.Be5 (14.Nc3 Bb7=) 14...Ne5 (worse is 14...Qe5 15.cd5 Rb8 16.Qe4 Qe4 17.Be4+–) 15.cd5 cd5 16.Nc3 Be6 (16...Qc6 17.d4 ed3 18.Qb2=) 17.Qa4 Nd7 (17...Kf8!?=) 18.Qc6+/– Rd8 (better is 18...Qd8!? 19.f3 0–0 20.fe4 Rc8+/–) 19.Nd5+– (19.Qa6?! Ne5+=) 19...Bd5 20.Qd5 0–0 21.Qe4 Nc5 22.Qc2 Nd3 23.Qc6 (23.Be4!? Qd6 24.Rab1+–) 23...Qc6+/– 24.Bc6 Nb4 25.Bb7 Rd2 26.a3 Nd3 (better is 26...Rd7!?+/–) 27.Ba6+– Ne5 28.Rfd1 Rfd8 29.Rd2 Rd2 30.Bb7 Kf8 31.a4 Nd3 32.f4 Nf2?? 33.a5 Nh3 34.Kh1 Nf2 35.Kg2 h5 36.a6 Ng4 37.Kf3 f5 38.e4 Rf2# 0–1. Hal1958 – Victorabiodun03 (1605), playchess.de, 2006.

6.e3 Bc5 7.c3 Bd4 8.cd4= d5 9.d3 ed3 10.Bd3 (10.Nc3 Nge7=) 10...Bf5 11.0–0 Nge7 (11...Bd3 12.Qd3 Qe6 13.Nc3=) 12.Nc3 0–0 13.Ba3 Rfe8 14.Rb1 (14.Rc1 Bd3 15.Qd3 b6+=) 14...b6 15.Nb5 (15.Bf5 Qf5 16.Nb5 Red8=) 15...Red8 (15...Rec8 16.Bf5 Nf5 17.Qf3=) 16.Rc1 (16.Be7 Ne7 17.Bf5 Qf5=) 16...Bd3= 17.Qd3 Rac8 18.Rc2 a6 19.Nc3 b5 20.Bc5 Nf5 (20...Qe6 21.Rb1=) 21.Ne2 (21.Rfc1 Qg6=) 21...Nd6 22.Bd6 (22.a4 Nc4=) 22...Qd6 23.Qf5 (23.Rc5 Na5=) 23...Ne7 24.Qd3 Nc6 (24...Rc2 25.Qc2 Rc8 26.Qd3=) 25.Rc5 Na5 26.Rfc1 (26.Rc8 Rc8 27.Nf4 Nc4=) 26...Nc4 27.Rc8 Rc8 28.Nf4 Qd7 29.h3 (29.Qe2 Qf5=) 29...g6 (29...Rc7 30.Qe2 Qf5 31.Nd3=) 30.Qc3 (30.Qd1 Rc6=) 30...Kg7 (30...Qf5 31.Nd3=) 31.Nd3 a5 32.Nc5 Qf5 33.Qb3 Nd6 ½–½. Chirpii,Alexandru (2145) – Prociuc,Evgenii (2020), Kishnev ULIM Cup, 2001.

6.e3 Bc5 7.c3 d5 8.Nb5 Bb6 (8...Qe5 9.f4 ef3 10.Qf3+=) 9.Qc2 Qg6 10.Ba3 (10.c4 dc4 11.Nd6 Kf8=) 10...Nge7 (10...Kd8 11.d3=) 11.Nd6 Kf8 (11...Kd7 12.d3 Bc7 13.Nc8 Kc8 14.de4 de4 15.Nd2=) 12.d4 1–0. Trigance,Emile – Tanda,Giovanni (2025), FICGS, 2010.

6.e3 Bc5 7.c3 d5 8.d3 =+.

6.e3 Bc5 7.Nc3 Nd4 8.Nb5 Nh6 9.Nc7 Kf8 10.Na8 Ng4 11.Qg4 Nc2 12.Ke2 Qb2 –/+.

6.e3 Bc5 7.Nc3 Nd4 8.ed4 Bd4 9.Qe2 Qe5 –/+.

6.e3 Ne5? 7.Be2 (better 7.Nc3 Qg6 8.Ndb5+–) 7...Qf2?? (better 7...Bc5 8.Nc3 Qg6+–) 8.Kf2+– Nd3 (8...a6 9.Nb5 Ng4 10.Bg4 ab5 11.Nc3+–) 9.cd3 Nf6 10.Kf1 (10.Nb5 Kd8+–) 10...Nd5 11.Ke1 (11.de4 Nc7+–) 11...Be7 12.g3 (12.Nf5!? ed3 13.Bd3 Nb4 14.Ng7 Kd8+–) 12...Bc5 13.Nc3 (13.de4 Ne7 14.Nb3 Bb6 15.Bg7 Rg8+–) 13...Nb4 14.Kf1 (better 14.Ne4 d6+–) 14...ed3 15.Bg4 f5 16.Bh5 (16.Nf5!? 0–0 17.Qb3 d5 18.Nd5 Be6 19.Nde7 Kf7+–) 16...Kd8 17.Ncb5 b6 18.Nc6! dc6 (18...Nc6 19.Bg7 Combination; 18...dc6 19.Bg7 Combination) 19.Bf6! (19.Bf6 gf6 20.Bf3+–) 1–0. FeegLood (2105) – Arka50 (2125), lichess.org, 2015.

5.Nd4 Nf6

6.Nb3 d6 7.e3 dc5 8.c4 (8.Bb5 Bd7=) 8...Be7 9.Be2 0–0 10.0–0 Be6 11.d4? (better 11.f3!?=+) 11...ed3–+ 12.Bd3 Nb4 13.Be2 Qd1 14.Bd1 (14.Rd1 Nc2–+) 14...Bc4 15.Bf3? (15.Re1–+) 15...Bf1 (15...Bf1 16.Kf1 Nc2–+) 0–1. Trigance,Emile – Voveris,Saulius (1800), FICGS, 2010.

6.Nb3 d6 7.Bf6 Qf6 8.Nc3 =.

6.e3 Bc5 7.Nb3 Bb6 8.Be2 d5 9.Ba3 (9.0–0 Qd6=) 9...Bc7 10.Nc3 Bd6 (10...Be5 11.Rb1=+) 11.Bd6= Qd6 12.Nb5 Qe7 13.0–0 a6 14.N5d4 0–0 15.f3 Nd4 16.Nd4 Be6 17.Qc1 Rac8 18.a4 Rc7 19.a5 Rfc8 20.Qa3 (< 20.Ne6 Rc2 (20...Qe6?! 21.c3=; 20...fe6?! 21.c3=) 21.Qb1 ef3 22.Bf3 fe6–/+) 20...g6 (20...Qa3!? 21.Ra3 Rc5=) 21.Qb3 (< 21.Ne6 Qa3 22.Ra3 fe6=) 21...Kg7 22.Qb2 0–1. pcmvr (2225) – rhand (2260), net–chess.com, 2006.

6.e3 Bc5 7.Nf5 0–0 8.c4 d5 9.Ng3 d4 10.ed4 Nd4 11.Be2 Qb6 12.Bc3 Ne2 13.Qe2 Bg4 14.Qf1 Rfe8 15.Ne2 e3 16.de3 Be3 17.f3 Bf5 18.Nd2 Bd2 0–1. Streit – Voelker, corr DDR.

6.Nf5 g6?? (better 6...d5 7.Nd6 Bd6 8.cd6 Qd6=+) 7.Nd6+– Bd6 8.cd6 0–0 9.Nc3 Re8 10.Rb1 (10.Nb5 Rf8+–) 10...Re6+– 11.e3 (11.Ba3 Qa5 12.Qc1 Ne8+–) 11...Rd6 12.Bc4 Ne5 13.Bb3 b5?? (better 13...Qa5+=) 14.Nb5+– Rb6 15.Be5 Rb5 16.Bf7! Kf7 17.Rb5 Ba6 18.Ra5 (better 18.Rb2+–) 18...Qa5–+ 19.Bc3 (19.Bf6 Rb8 20.a3 Kf6 21.Qa1 Kf7–+) 19...Qb5 (19...Qa2!? 20.Be5–+) 20.f3 Nd5 21.Bd4 Ke7 (better 21...Nb4 22.Kf2 Rc8 23.fe4 Nc2 24.Ba7 Kg8–+) 22.fe4= Rf8 23.d3 Qa5 24.Qd2 Qa2?? (better 24...Qd2 25.Kd2 Rf2 26.Kc1 Nb6=+) 25.ed5+– Qb1 (25...Qd5 26.Qb4 d6 27.e4+–) 26.Qd1 Qb4 (better 26...Qd1 27.Kd1 Bb7+–) 27.Qd2 Qb1 28.Qd1 Qb4 29.Ke2 Qd6 (29...Bc8 30.c4+–) 30.Rf1 (better 30.c4!? Bc8+–) 30...Qd5 31.Rf8 Kf8 32.Qf1 Ke7? (32...Ke8 33.c4 Qc6 34.Ba7+–) 33.Ba7 (better 33.Qf6 Ke8 34.Qh8 Ke7 35.Qh7 Qf7 36.Qh4 Ke8 37.Bc5+–) 33...Qh5 (better 33...Bd3!? 34.cd3 Qa2 35.Ke1 Qa5 36.Kf2 Qa7+–) 34.Qf3+– Qh2 35.Bc5 Ke6 (35...d6 36.Bd4+–) 36.Qe4 (36.c4 Bb7 37.Qg4 Kf6 38.Bd4 Ke7 39.Qg5 Ke8+–) 36...Qe5 37.Qe5 Ke5 38.Bd4 Kf5 39.c4 h5 40.Kf3 g5 41.e4 Kg6 42.Be5 Bb7 43.Bd6 h4 44.Ke3 (44.Kg4 Bc6+–) 44...Kh5 45.Kd4 g4 46.Kc5 (46.Ke3 Kg5+–) 46...h3 (46...Bc6 47.Bf4+=) 47.gh3 gh3 48.Kd4 Kh4 49.Ke3 Kg4 50.Bh2 Ba6 51.Kf2 Bc4?? (better 51...Bb7+–) 52.Ke3 (better 52.dc4 Kg5 53.Kg3+–) 52...Be6 53.Kf2 d5 54.e5 d4 55.Bg1 (55.Ke2 Bf5–/+) 55...Bd5 56.Bh2 Kf5 57.Ke2 Ke6 58.Kf2 Bg2 59.Kg3? (59.Bf4 Bc6=+) 59...Kd5 (59...Ke5!? 60.Kf2 Kf6 61.Bf4–+) 60.Kf4 (60.Kf2=+) 60...Ke6 61.Kg5 (61.Kg3!?=) 61...Bf1 62.Kf4? (better 62.Kg4=+) 62...Bd3–+ 63.Kg3 Bf5 (63...Ke5?! 64.Kh3 Ke4 65.Kg3–/+) 64.Kf4 d3 65.Ke3 d2 66.Kd2 Kd5 67.Ke3 Ke6 68.Kf4 (better 68.Kd2=) 68...Kd5?? (better 68...Bd3=+) 69.Kg3 (better 69.Kf5 Kc5 70.e6+–) 69...Ke6 (better 69...Ke5!? 70.Kf3 Kd4 71.Bg1 Kc4–/+) 70.Kf2 (70.Kf4 Bd3=+) 70...Kd5 71.Kg1 (71.Ke3!?=) 71...Ke6 72.Kf2. FeegLood (2650) – Lance5500 (2495), Time forfeit, 2015.

6.Nb3 a5

7.a4 d5 8.cd6 Bd6 9.Na3 0–0 10.Nc4 Bc7 11.e3 Qd5 (11...Rb8 12.Be2+=) 12.d3 (12.Bf6 gf6 13.Rb1 Rd8+–) 12...ed3 (12...Bg4 13.Qd2 Qg5 14.Rb1+=) 13.Qd3 (13.cd3 Ng4+–) 13...Qd3 (13...Qg5!?+=) 14.Bd3+– Nb4 (14...Nd5 15.Rd1+–) 15.Nd4 (15.Bf6 gf6 16.0–0–0 Be6+–) 15...Bd7 16.Ke2 (16.Nb5 Bd8+–) 16...Rfe8 17.Bf5 Bf5 18.Nf5 Re6 19.Nd4 Ree8 (19...Re4!?+–) 20.Nb5+– Nfd5 21.c3 Na6 22.Rhd1 Nf4 23.Kf3 Ne6 24.Ba3 f6 (24...Rec8 25.Rab1+–) 25.Nc7 ½–½. FeegLood (2445) – RobertFontaine (2450), lichess.org, 2015.

7.a4 d5 8.e3+= Be7 9.Na3 (9.Bb5 0–0+/–) 9...0–0 10.Be2 (10.Bb5 Bg4 11.f3 ef3 12.gf3 Bf5+=) 10...Be6 (10...Nd7 11.Bd4=) 11.0–0 Rc8 (11...Nd7 12.Bd4=) 12.d4 (12.Nb5 Nb4+/–) 12...ed3 (12...b6 13.Rb1+=) 13.cd3+/– Nb4 14.Qd2 (14.Bf6 Bf6 15.d4 Re8+/–) 14...Nd7 (14...Bc5 15.Nc5 Rc5 16.Rfc1+=) 15.d4+/– b6 16.Rac1 bc5 17.dc5 Nc5 18.Nc5 Bc5 19.Nb5 (19.Bg7 Be3 20.fe3 Rc1 21.Qc1 Kg7 22.Qc3 f6+/–) 19...Qg5 20.f4 (20.Bd4 Bd4 21.Nd4 Bh3=) 20...Qe7 21.Rf3 Rfe8 22.Nd4 Na2 (22...Bg4 23.Rf2 Be2 24.Re2=+) 23.Rcf1 (23.Rb1 Bg4 24.Rg3 Be2 25.Qe2 Qe4=+) 23...Bb4=+ 24.Qd3 Bc3 (24...Nc3 25.Bd1–/+) 25.Bc3 Nc3 26.f5 Ne2 (26...Bd7 27.f6 Ne2 28.Qe2=) 27.Qe2 Bd7 28.f6 Qe5 29.Nf5? (29.Qd3 Ba4 30.fg7 Rc5+= (30...Qg7? 31.Rg3+–)) 29...Bf5 (better is 29...Qf6!? 30.Qd3 Qe5–/+) 30.Rf5= Qe3 31.Qe3 Re3 32.Rg5 (32.Rd5 Re2+=) 32...g6 (better is 32...Rc4!?=) 33.Rd5+/– Ra8 34.Rb1 (34.Rfd1 Re4+/–) ½–½. Sternik,Ryszard – Dougherty,T, corr Poland–USA, 1990.

7.a4 d5 8.e3 Be7 9.h3 Bd7 (9...0–0 10.Bb5+=) 10.d4+= 0–0 11.Nc3 Be6 (11...b6 12.Bb5+=) 12.Rb1 (12.Be2 Nd7+–) 12...Kh8 (12...b6!?+–) 13.Be2 Ng8 (13...h6 14.0–0+–) 14.Nb5 (14.0–0 Nf6+–) 14...f5 (14...Nf6 15.0–0+–) 15.0–0 Qd7 (15...Nf6 16.Qd2+–) 16.c4! Rf6 (16...dc4 17.Nd2 Decoy) 17.cd5 Bd5 18.Nd2 Nh6 (18...Rg6 19.Nc4 Bc4 20.Bc4+–) 19.Nc3 Nb4 (19...Bf7 20.Nc4 Nb4 21.Ne5+–) 20.Nd5 Nd5 21.Qb3 Nb4 (21...Ra7 22.Bb5 Qd8 23.Nc4+–) 22.Nc4 Bd8 23.f3 Bc7 (23...Qd5 24.Bc3+–) 24.fe4 fe4 25.Rf6 gf6 26.d5! Nd5 (26...Nd5 27.Nb6 Double attack (27.Qb7 Pinning; 27.Qb7 Deflection; 27.Nb6 Decoy); 26...Qd5 27.Nb6 Double attack (27.Bf6 Discovered attack; 27.Nb6 Decoy)) 27.Rd1 Rg8 (27...Qf7 28.Nd6 Bd6 29.cd6 Nb4+–) 28.Bf6! (28.Bf6 Rg7 29.Bg7 Kg7 30.Nb6+–) 1–0. Domingo,Jordi (1970) – Trigance,Emile, FICGS, 2010.

7.a4 d6!? =.

7.a4 Be7 8.Na3 0–0 (8...d6 9.cd6 Bd6 10.Nb5+=) 9.Nb5 d5? (better 9...b6 10.cb6 Qb6+–) 10.cd6!+– Bd6 11.Nd6 Qd6 12.Ba3 Nb4 (12...Qc7 13.Bf8 Kf8 14.Rb1+–) 13.c3 Be6 14.Na5 Ra5 15.Bb4 (15.cb4?! Rf5 16.e3 Rd8+–) 15...Qa6 16.e3 Rd8 (16...Qb6+–) 17.Ba6 Ra6 18.Qe2 (18.Be7!? Rda8 19.Bf6 gf6+–) 18...Rc6 19.Be7 Bc4 20.Bd8 (20.Qd1 Ra8+–) 20...Be2 21.Ke2 Nd5 (21...Ne8 22.Rhb1 Rd6 23.Bh4+–) 22.Rhb1 Rd6 23.Bh4 Rd7 24.Bg3 (24.Ra3 f6+–) 24...f5 25.Rb5 g6 (25...g5 26.c4 Ne7 27.Rab1+–) 26.Be5 (26.Rab1 b6+–) 26...Ne7 27.c4 (27.Rab1 Nc6+–) 27...Nc6 28.Rab1 Ne5 (28...Rf7 29.Bf4+–) 29.Re5 Kf7 30.Reb5 Ke7 (30...b6 31.Rb6 Ke7 32.a5+–) 31.Rb7 h5 (31...Rb7 32.Rb7 Kd8+–) 32.Rd7 Kd7 33.Rb6 (better 33.a5 h4+–) 33...g5 34.a5 Kc7 35.c5 f4 36.a6 g4 37.a7 f3 38.Kf1 fg2 39.Kg2 h4 (39...g3 40.a8Q gf2 41.Qa7 Kc8 42.Rb8) 40.a8Q g3 (40...h3 41.Kg3 Kd7 42.Qa7 Kc8 43.Rb8) 41.Qa7 (41.Qa7 Kc8 42.Rb8) 1–0. FeegLood (2660) – Lutikov (2025), Time forfeit, 2015.

7.a4 Be7 8.d4 b6 9.cb6 Ba6 10.e3 Bf1 11.Kf1 Rb8 12.Na3 Qb6 13.Nb5 d5 14.c4 dc4 15.Nd2 0–0 16.Nc4 Qd8 17.Ba3 Ba3 18.Ra3 Nb4 19.g3 Rc8 20.Nd2 Nd3 21.Rc3 += 1–0. Feilmayr – Wolfertz, corr SOK–87–07.

7.Bf6 Qf6 8.Nc3 Qf5 +=.

5.Ne5 Bc5

6.Nc6 Qb6 7.Qc1 Bf2 8.Kd1 f6 9.e3 dc6 10.g3 'N?' 10...Bg4 '–/+' (10...Qa5 11.Ke2 Qf5 12.Bg2 Be6 13.d3 ed3 14.cd3 Nh6 15.Be4 Be3 16.Qe3; 10...Qc5 11.Ke2 Be3 (11...Qf5 12.Bg2 Be6 13.d3 ed3 14.cd3 Nh6 15.Be4 Be3 16.Qe3) 12.de3 Bg4 13.Kf2 0–0–0 14.Nd2 Nh6 15.Bg2 Qf5 16.Kg1) 11.Be2 Bh3 (11...Nh6 12.Rf1 Be3 13.de3 0–0–0 14.Ke1 Be2 15.Ke2 Qc5 16.Ke1) 12.Bf1 (12.c4!?–/+ 0–0–0 13.Kc2 Ne7 14.Rf1 Bf1 15.Qf1 Be3 16.Bg4; 12.Na3 0–0–0 13.Nc4 Qc7 14.Bc3 Bg2 15.Rf1 Bf1 16.Bf1; 12.Nc3 0–0–0 13.Ne4 Qe3 14.Nf2 Qf2 15.d4 Re8 16.Qd2; 12.Bd4 c5 13.Bc3 Nh6 14.Na3 Bg2 15.Rb1 Qe6 16.Qb2) 12...Qc5 (12...Qa5 13.Be2 Bg2 14.Re1 Nh6 15.Bd4 Be1 16.Ke1) 13.Ke2 '??' (better is 13.c4 Bg4 14.Be2–+ Be2 15.Ke2 Qf5 16.Kd1) 13...Qf5 14.d3N Qf3 15.Kd2 Be3 16.Kc3 Bc1 17.Bc1 Qh1–+ 0–1. Prokop,Frantisek – Skalicka,Carlos, Kautsky Memorial, 1926.

6.Nc6 Qb6 7.Bd4 dc6 8.Bc5 Qc5 9.e3 =+.

6.Nc6 Qb6 7.Nd4 Bd4 (7...Qb2 8.Nb3 Qe5 9.e3=) 8.Bd4 Qd4 9.Nc3 Nf6 10.e3 Qc5 (10...Qe5 11.d4 Qe7 12.Rb1=) 11.Rb1 0–0 12.Rb5 (12.Be2 d5=) 12...Qc6+= 13.Qb1 d5 14.Qb4 (14.Rb4 b6+=) 14...b6 15.Qa4 (15.Qb3 Rd8+=) 15...a6 16.Rb4 b5 17.Qa5 Bd7 18.Be2 Ne8 (18...Bg4 19.Bg4 Ng4 20.Rd4+=) 19.Rd4 Be6 20.f3 (20.a4 Nd6+=) 20...f5 (20...Nd6 21.fe4 Ne4 22.Ne4 de4 23.c3+=) 21.0–0= Nd6 22.a4 Rfb8 23.Rb1 h6 24.ab5 ab5 25.Qb4 Nc4 26.fe4 fe4 27.Rb3 Ra1+= 28.Kf2?? Rf8–+ 29.Bf3 ef3 30.gf3 Qc7 (30...Qc7 31.f4 Qf7–+) 0–1. Opocensky,K – Rejfir,J, ch.Prague IV, 1927.

6.Nc6 dc6 7.Bg7 Nf6 8.Bh8 +–.

6.e3 Nf6 7.Ng4 Be7 8.Nf6 Bf6 9.Bf6 Qf6 10.Nc3 Qe5 11.Bc4 f5 12.0–0 Ne7 13.d4 Qa5 14.Qe1 a6 (14...d6!?+=) 15.Ne4+/– Qc7 16.Nd2 d5 17.Bd3 Be6 18.Qe2 0–0 19.c4 dc4 20.Bc4 Bc4 21.Qc4 Qc4 22.Nc4 b5 23.Ne5 Rfc8 24.Rfc1 Nd5 25.Nc6 Rc7 26.Rc5 Nb6 27.Rac1 g6 28.Ne5 Rc5 29.Rc5 Na4 30.Rc6 b4 31.d5 Nc3 32.d6 Kf8 33.d7 Rd8 34.Ra6 Nd5 35.Rd6 Ne7 36.Rb6 Nd5 37.Rb7 Nf6 38.Rb4 1–0. Sternik,Ryszard – Feilmayr,Erwin, corr SOK–96–114, 1997.

6.e3 Nf6 7.Ng4 Nh5 8.d4 Bb4 (8...Qb6 9.Bc3 (worse is 9.dc5 Qb2 10.Nd2 Nb4–/+) 9...Bb4 10.d5+=) 9.c3+= Ba5 10.d5 Nb8 11.d6 Qg5 12.Nd2 Qf5 13.Be2 Nc6 (13...Na6 14.0–0+/–) 14.0–0 (14.Qa4 Qe6 15.Qe4 f5 16.Qe6 de6+=) 14...0–0 (14...Qe6 15.Nb3+/–) 15.f3 ef3 16.Rf3 (16.Bf3 Qg6 17.Nb3 Bd8+/–) 16...Qg4 17.Rf7! Qg5 18.Rf8 Kf8 19.Bh5 Qe3 20.Kh1 g6 21.Qf1 Kg8? 22.Re1+– (22.Re1 Qe6 23.Re6 de6 24.Bf3+–) 1–0. Fournier,Frederic (2245) – Terrazzee (1920), queenalice.com (QA–ANNIV–04), 2008.

4.g3 Bc5

5.e3 d5 6.Be2 Nf6 7.Nc3 0–0 8.Bf3 Be6 9.Nge2 Rc8 10.0–0 e4 11.Bg2 Ne5 12.Ne4! Ned7 13.Nc5 Rc5 14.Nf4 Ne4 15.d3 Nef6 16.Bf6 gf6 17.Qh5 f5 18.Qh6 1–0. Olej – Stvan, corr 1963–64.

5.e3 d5 6.Bg2 Nf6 7.Ne2 0–0 8.0–0 Bg4 9.f3 Bf5 10.d4 ed4 11.Nd4 Nd4 12.Bd4 Bd4 13.ed4 Qc7 14.Rf2 Rac8 15.Na3 Qc3 16.Nb5 Qe3 17.Nd6 Qe6 18.Nc8 Rc8 19.f4 Ne4 20.Be4 Be4 21.Rc1 Qa6 22.c3 Qa3 23.Qd2 g6 24.Qb2 Qb2 25.Rb2 b6 26.Rb4 Bd3 27.Kf2 Bc4 28.a3 Kg7 29.Re1 Kf6 30.Re3 h5 31.Rb1 Rc6 32.Rbe1 Re6 33.Re6 fe6 34.h3 ½–½. Olej – Rehurek, corr 1963–64.

5.e3 Nf6 6.Bg2 d5 7.Ne2 0–0 8.0–0 Qb6 9.Qc1 Bf5 10.Nbc3 Rfd8 11.Rb1 Qa5 12.a3 Rab8 13.f4 e4 14.Nd1 d4 15.ed4 Nd4 16.Nd4 Bd4 17.Bd4 Rd4 18.Nc3 a6 19.Re1 Qc5 20.Kh1 Rbd8 21.Re2 b5 22.Qe1 Qa3 23.Ra1 Qd6 24.Rd1 Bg4 0–1. Olej – Stepan, corr 1963–64.

5.Bg2 Qb6 6.Qc1 Bf2 7.Kf1 Nf6 8.e3 (8.Nc3 Bd4–+) 8...Ng4 9.Nh3?? (9.Bf3 Ne3! 10.de3 Be3 11.Nd2 Bd2 12.Qd2 Qb2 13.Rd1–+) 9...Be3! 10.Nc3 (10.de3 Ne3 Double attack) 10...Bd2! 11.Qd2 Ne3 (11...Qb2?! 12.Rb1 Qc2 13.Qc2 Ne3 14.Kf2 Nc2 15.Nb5–+) 12.Ke2 Nd4 (12...Qb2?! 13.Ke3 Qb6 14.Ke2+=; 12...Ng2 13.Nd5 Qb2 14.Kf2–+) 13.Kf2 Ndc2 (13...Qb2 14.Qe3 Qc2 15.Kf1=) 14.Na4 Ng4 15.Ke2 (15.Kf3 Qc6 16.Kg4 h5 17.Kh4 Qa4 18.Nf4 f6–+ (18...ef4 19.Rae1 Kd8 20.Re4 g5 21.Kg5 Qb5 22.Be5 f6 23.Kf6 Qc6 24.Bd6 Rh6 25.Kf7 Rd6 26.Qa5 b6 27.Re8 Kc7 28.Bc6 ba5 29.Ba8+–)) 15...Qb5 16.Kf3 (16.Qd3 Qa4 17.Rac1 Nce3–+) 16...Qa4 17.Rhc1 (17.Rae1 Ne1 18.Re1–+) 17...e4 18.Ke2 Qb5 19.Kd1 Nge3 (19...Nge3 20.Qe3 Ne3 21.Ke1 Ng2 22.Kf2 Qb2 23.Kg1 Ne3–+) 0–1. Colarina,Floram – Domingo,Jordi (1970), FICGS, 2010.

3.Bb2 Qc7

4.d4 ed4 5.Qd4 Nc6 6.Qe3 Nge7 7.Nc3 Kd8 8.0–0–0 d5 9.cd6 1–0. Machete99 – doddson, ICC, 2002.

4.e3 Bc5= 5.Nf3 (5.Nc3 Nc6=) 5...d6 6.c4 (6.d4 Bb4 7.Nbd2 Nd7=) 6...f5 (6...Bg4 7.d4 ed4 8.ed4 Bb4 9.Bc3 Bc3 10.Nc3 Qe7 11.Kd2=) 7.Nc3 Nf6 8.Be2 Be6 (8...e4 9.Nd4=) 9.0–0 h6 (better is 9...Bb4!? 10.Nb5 Qd7+=) 10.d4+/– Bb6 (better is 10...ed4 11.ed4 Bb6+/–) 11.de5 de5 (11...Ne4 12.Nd5 Qd7+–) 12.Rc1?? (better is 12.Nb5 Qd8 13.Nd6 Kf8 14.Ne5+–) 12...Nbd7 (12...0–0 13.Nd5 Qd8 14.Nb6 ab6 15.Be5 Qd1 16.Rfd1 Ra2 17.Nd4+/–) 13.Nd5 (13.Nb5 Qc6 14.Nd6 Kf8+–) 13...Qd8 (13...Qb8 14.Nb6 ab6 15.Qb3+=) 14.Nb6 Nb6 (14...Qb6 15.Be5 Ne5 16.Ne5+/–) 15.Qd8 (15.Be5 Nbd7+–) 15...Rd8+/– 16.Be5 (16.Ne5 Rd2 17.c5 Rb2 18.cb6 Re2= (18...Ra2? 19.Bb5 Kf8 20.Ra1+–; 18...Ba2?? 19.ba7 0–0 20.Ng6+–)) 16...0–0 (16...Nbd7+/–) 17.Rfd1 (better is 17.Nd4!? Kf7 18.c5+–) 17...Rd1+= 18.Rd1 (18.Bd1 Bc4 19.a4 Bd5+=) 18...Bc4= 19.Bc4 Nc4 20.Bf6 Rf6 21.Nd4 Rd6 22.Rc1+/– Nb6 23.Nf5 Rf6 24.Nd4 Rd6 25.g3 Kh7 26.Kg2 Rd5 27.Rc7 Rd7 28.Rd7 Nd7 29.Nb5 a6 30.Nc3 Nc5 31.a4 Ne4?? 32.Ne4+– 1–0. Fournier,Frederic (1795) – richrevolutions (1775), Active (2/1) ajedrez21.com, 2005.

4.f4 ef4+= 5.Nf3 Nf6 (5...f6 6.d4+=) 6.d4 (better is 6.Bf6!? gf6 7.d4+=) 6...d6–/+ 7.cd6 Bd6 8.c3 (8.c4 0–0+=) 8...Bf5 9.Nbd2 0–0 10.Qb3 Nc6 0–1. Fournier,Frederic (2215) – Robeson,Christian, Train France (FRA), 2001.

3.Bb2 d6

4.Na3 Be6 5.Nb5 Qb6?? (better is 5...Nc6 6.Nf3 dc5 7.Ne5 Nge7+=) 6.cb6+– Na6 7.ba7 Nb4 8.Nc7 Kd7 9.Na8 Nd5 10.e4 Nge7 11.ed5 Nd5 12.c4 Be7 13.Qa4 Kc8 14.cd5 Bd5 (14...Kd8 15.Qa5 b6 16.Qb6 Ke8 17.Nc7 Kf8 18.a8Q Bc8 19.Qc8 Bd8 20.Qd8) 15.Nb6 Kc7 16.Nd5 Kd8 17.a8Q 1–0. marekt – Seanypop, ChessWorld.net, 2003.

4.cd6 Qd6 5.Ba3 Qf6 6.Bf8 Kf8 7.Nc3 Ne7 8.Nf3 Nd7 9.e4 Qf4 10.d4 ed4 11.Nd4 Nf6 12.Nf5 Bf5 13.ef5 Re8 14.Ne2 Qf5 15.f3 Ned5 16.Rb1 b6 17.Qd3 Qe5 18.Kf2 Qe3 19.Qe3 Ne3 20.Nd4 Nfd5 21.Bb5 Rc8 22.c4 Nc4 23.Rhc1 Nd6 24.Nf5 Rc1 25.Rc1 Nf5 26.Rc8 Ke7 27.Rh8 Nd6 28.Ba4 h6 29.Bb3 Nc7 30.Ke3 b5 31.Kd4 a5 32.g3 a4 33.Bc2 Ne6 34.Kc3 Kd7 35.Be4 Ne4 36.fe4 Ng5 37.e5 Nf3 38.Kb4 Nh2 39.Rh7 Ke6 40.Rg7 Nf1 41.Kb5 a3 42.Kb4 Ne3 43.Ka3 Nf5 44.Rg8 Ke5 45.Kb4 Kd6 46.a4 Kc6 47.Rf8 Ng3 48.Rf7 h5 49.a5 Ne4 50.a6 Nd6 51.Rf6 h4 52.Rd6 Kd6 53.a7 1–0. Rosner,Dirk – Reuschel_Schwitalla,Klaus, DESC, 2000.

4.cd6 Qd6 5.e4 Ne7 6.Nf3 Bg4 7.Be2 f6 8.0–0 Nbc6 9.Nc3 a6 10.Re1 h6 11.Qb1 Ng6 12.Nd5 f5 13.d3 Be7 14.Ne7 Nce7 15.a4 Nc6 16.ef5 Nge7? (better is 16...Bf5 17.d4 Nf4 18.Ne5 Ne5+–) 17.Ba3 Qc7 18.Be7 Ne7 19.Ne5! Bf5 (19...Qe5 20.Bg4) 20.Bf3 0–0 21.Qb7 Qd8 (21...Ra7 22.Qc7 Rc7+–) 22.Qa8 Qa8 23.Ba8 Ra8 24.Nc6 (better is 24.Rab1+–) 24...Nc6 (25.Rab1 Rc8+/–) +/–. Heat – saul, Live Game Caissa's Web, 2004.

4.cd6+= Bd6 5.e4 Qb6 6.Bc1 +=.

4.cd6+= Bd6 5.e4 Qf6 6.Nc3 Qf4 (6...Nc6 7.Bb5+/–) 7.Nb5 (better is 7.Nge2 Qf6 8.Nb5+/–) 7...Bc5?? (better is 7...Qe4 8.Qe2 Qe2 9.Be2 Ke7+/–) 8.Qf3+– Bg4 (8...Qf3 9.Nc7 Kd8 10.Nf3 Kc7 11.Be5 Bd6 12.Bg7 Nf6 13.Bh8 Ne4+–) 9.Qf4 ef4 10.Bg7 Kd7 (10...Nf6 11.Bh8 Ne4 12.f3+–) 11.Bh8 Nc6 12.Be2 (better is 12.d4 Bb6 13.f3 Nge7+–) 12...Nf6 (12...Be2 13.Ne2 Re8+–) 13.Bf6 Be6 (13...Rg8 14.d4 Bb6 15.f3+–) 14.d4 Bb4 15.c3 Ba5 16.d5 Rf8 17.de6 (better is 17.dc6!? bc6 18.Rd1 Kc8 19.Nd6 Kb8+–) 17...fe6 18.0–0–0 +–. Darlanio – Seanypop, ChessWorld.net, 2004.

4.cd6+= Bd6 5.Nf3 Nc6 6.e3 b6 (better is 6...Nf6!?=) 7.Bb5 Bd7 8.Bc6 Bc6 9.0–0 (9.Be5 Be5 10.Ne5 Qg5 11.Nc6 Qg2+=) 9...Bf3 (9...Qf6!?=) 10.Qf3+/– Nf6 (10...Rc8+/–) 11.d4 (11.Qc6 Kf8+/–) 11...ed4 (better is 11...e4!? 12.Qe2 0–0+=) 12.Bd4 Be7 (12...0–0 13.Nc3+/–) 13.Qc6 Nd7 (13...Kf8 14.Qf3+–) 14.Bg7 Rg8 15.Bd4 Kf8 (better is 15...Rg6 16.Qe4 Kf8+–) 16.Qh6 Ke8 17.Qh7 Rg6 18.Nc3 Nf8 (18...Rc8 19.Rad1+–) 19.Qh5 Qd6 20.Qe5 Qc6? 21.g3 Re6 22.Qd5 Qc7 23.Nb5 Qc8 24.c4 Nd7 25.Rfc1 Nc5 26.Bc5 Bc5 27.Nc7! Ke7 28.Ne6 fe6 29.Qg5 Kd6 30.Rd1 Kc6 31.a4 Qa6 32.Qf4 Qc4 33.Qc4 (33...Rc8 34.Qe6 Kb7 35.Rd7 Rc7 36.Qd5 Ka6 37.Rc7 Ka5 38.Qd2 Ka6 39.Qd3 Ka5 40.Qb5) 1–0. revbodio – bueno, Live Game Caissa's Web, 2005.

4.cd6V Bd6 5.Nf3 Nc6 6.e3 Qc7 (better 6...Nf6!?+=) 7.Nc3+– Bg4 (7...Nf6 8.Bd3+–) 8.Be2 (8.h3 Bf3 9.Qf3 Nf6+–) 8...h6 (8...Nf6 9.h3 Bh5 10.Nb5+–) 9.h3 Bf3 10.Bf3 Nf6 11.Nb5 (better 11.0–0+–) 11...Qb6?? (better 11...Qd7+–) 12.Nd6+– Kf8 13.Nc4 (better 13.Rb1 Qa6+–) 13...Qc5 (13...Qb5 14.Be2 Qd5 15.0–0+–) 14.Ba3 Nb4 15.Bb4 (15.Be2 b5 16.c3 a5+–) 15...Qb4 16.Ne5 Ne4 (16...Rd8 17.Nd3 Qe7 18.Rb1+–) 17.Be4 (better 17.Rb1 Qe7 18.Be4 Qe5+–) 17...Qe4 18.Nf3 g5 (18...g6 19.d3 Qe7 20.0–0+–) 19.d3 (19.d3 Qb4 20.Kf1+–) 1–0. UncleBulgaria (2435) – chessishard (2000), ChessWorld.net, 2015.

3.Bb2 f6

4.Ba3 Qc7 5.d4 ed4 =.

4.d4 b6 5.de5+/– Bb7 (5...Bc5 6.e3 Bb7 7.Nf3+/–) 6.cb6+– Qb6 7.Bd4 Qe6 8.Nf3 Bf3 9.ef3 (< 9.gf3 fe5 10.Bb2 Nc6+=) 9...Bb4 (9...fe5 10.Be3+/–) 10.c3+– Ba5 (10...fe5 11.Be3 Be7 12.Qb3+–) 11.Qa4 (11.Qb3 Nc6 12.Qe6 de6 13.ef6 gf6+–) 11...Nc6 12.Bc4 Qe7 13.0–0 Nd4 14.cd4 Qb4 15.Qb4 Bb4 16.a3 Ba5 17.e6 de6 18.Be6 Ne7 19.Rc1 Bb6 20.d5 h5? 21.Nd2 g5? 22.Ne4 f5 23.Ng5 h4 24.d6 Ng6 25.Bf7 Kd7 26.Bg6 f4 27.Bf5 Kd6 28.Nf7 Kd5 29.Nh8 Rh8 30.Rc8 Rh5 31.Rd1 Ke5 32.Bg4 Rh7 33.Re8 Kf6 34.Re6 Kg7 35.Rd7 Kf8 1–0. Darlanio – ricar67, ChessWorld.net, 2004.

4.d4 ed4 5.Qd4 Nc6 6.Qe4 Kf7 7.e3 Bc5 8.Qd5 (Unregistered player Black disconnected and forfeits 1–0). Machete99 – guest716, ICC, 2002.

4.d4 ed4!? 5.Bd4 Bc5 6.Bc5 Qa5 7.Qd2 Qc5 +=.

4.d4 ed4 5.Bd4 Qc7 +=.

4.e4 Bc5 5.Qh5 g6 =.

4.e4 g6 5.d4 Nc6 6.d5 Bc5 7.dc6 (Better is 7.Nd2 Na5 8.Rb1+=) 7...bc6?? (Better is 7...Qb6 8.Nh3 Qb2 9.cb7 Qb7=+) 8.Qd2 Qb6 9.Bc3 g5 10.Bc4 Nh6 11.Nf3 Ng4 12.0–0?? Bf2? 13.Rf2+– Nf2 14.Qf2 Qf2 15.Kf2 Rb8 16.Nbd2 h6 17.Ne5 d5 18.Nc6 Rb6 19.ed5 Rh7 20.Re1 Kf7 21.Re7 Kg6 22.Rh7 Bf5 23.Ra7 g4 24.Ne7 (24...Kf7 25.Nf5 Ke8 26.d6 Kd8 27.Be6 g3 28.Kg3 Rb8 29.Rg7 Rb3 30.Rg8) 1–0. KHW – Sincerely Sam, ChessWorld.net, 2003.

4.Nf3 Bc5 5.d4 ed4 +=.

4.e3 Bc5

5.d4 Bb4 6.c3 +=.

5.d4 Qb6 +=.

5.Be5 fe5–+ 6.Qh5 Kf8 7.Qe5 d6 8.Qb2 Qf6 9.d4 Bb6 10.Nf3 Nc6 11.Be2 Nge7 12.0–0 h6 13.Nbd2 Kg8 14.c4 Kh7=+ 15.Rac1 Rf8 16.Bd3 Kh8 17.c5 Bc7 18.cd6 Bd6 19.Nc4 Bc7 20.Qc2 Rb8 21.a3 Bf5 22.e4 Bg4 23.Be2? Bf3–+ 24.Bf3 Nd4 25.Qd3 Nf3 26.Qf3 Qf3 27.gf3 Rf3 28.Rcd1? Nc6 29.Rd7 Bb6 30.Nd6? Rbf8 31.Rb7 Rf2 (32.Rf2 Bf2 (< 32...Rf2 33.Rb6 Rc2 34.Rb7+=) 33.Kg2 Bd4–+; 31...Ra3 32.Nc4 Na5 33.Na3 Nb7 34.Nc4–+) 0–1. Onkel_Luis (1705) – ARISoz (1740), ICC, 2003.

5.Nf3 Ne7 6.c4 (6.d4 ed4 7.ed4 Bb4 8.c3 Ba5+=) 6...0–0 7.Be2 (7.d4 ed4 8.Bd4 d6=) 7...Nbc6 (7...e4 8.Nd4=) 8.0–0 (8.d4 Bb4 9.Bc3 d6=) 8...Na5 (8...Qb6!? 9.Qb3 e4=) 9.Nc3 (9.d4 ed4 10.ed4 Bb6+=) 9...a6 (9...d5 10.cd5 Nd5 11.d4 ed4 12.Nd4+=) 10.Nd5 (10.d4 ed4 11.ed4 Bb4+/–) 10...Nd5 11.cd5 b5 (11...Be7 12.Qc2+=) 12.d4 ed4 13.ed4 (13.Rc1!? Bd6 14.Qd4+/–) 13...Bd6 14.Rc1 (14.Qc2!?=) 14...Bb7+= 15.Bd3 Bd5 16.Qc2 g6 (16...f5 17.Ne5 g6–/+ (worse is 17...Ba2 18.Bf5 Qh4 19.Ba3=)) 17.Bg6= Bf3 (17...hg6? 18.Qg6 Kh8 19.Qh5 Kg7 20.Qd5+–) 18.Bh7 Kh8 19.gf3 Qe7 20.Kh1?? (20.Bg6 Nc4 21.Bc3+=) 20...Qh7–+ 21.Qh7 Kh7 22.Rg1 Rg8 23.d5 Rg1 24.Rg1 Rg8 25.Bf6 Rg1 26.Kg1 Nc4 27.f4 Kg6 28.Be5 Be5 29.fe5 Ne5 30.Kg2 Nc4 31.h4 Nd2 32.h5 Kh5 33.Kg3 Kg5 34.f4 Kf5 35.Kh4 Ne4 36.Kh5 Nf6 37.Kh6 Nd5 38.Kg7 Nf4 39.Kf7 Nd3 40.Ke7 d5 41.Kd7 Ke4 42.Kd6 Kd4 43.Kc6 Nc1 44.Kb6 Na2 45.Ka6 Kc4 46.Kb6 d4 47.Kc6 d3 48.Kb6 d2 49.Ka5 d1Q 50.Ka6 Qa4 51.Kb6 b4 52.Kb7 b3 53.Kc7 b2 54.Kd6 b1Q 55.Ke6 Qbb5 56.Kf6 Qaa6 (56...Qaa6 57.Ke7 Qbb7 58.Ke8 Qaa8) 0–1. Fournier,Frederic (1795) – fernandokill (1855), Active (1/0), 2005.

3.Bb2 Qf6

4.d4 Nc6 5.de5 Ne5 6.Bd4 d6 7.e3 dc5?? (Better is 7...Qe6+/–) 8.Bb5+– Bd7 9.Bd7 Kd7 (9...Kd8 10.Be5 Qe5 11.Bc6 Qd6 12.Bb7 Qd1 13.Kd1 Rb8+–) 10.Be5 Ke6 11.Bf6 gf6 (11...Nf6 12.Nf3 Ke7 13.Qd3+–) 12.Qf3 Rd8 13.Qe4 Kd6 14.Na3 Re8 15.Nb5 Kd7 16.Rd1 Kc8 (16...Bd6 17.Rd6 Kc8 18.Qe8) 17.Qe8 1–0. Frank Bendig (1955) – Seanypop (1705), ChessWorld.net, 2003.

4.d4 ed4 5.Qd4 Qf5? 6.e4+/– Qf4 7.Nh3+– Qd6?? 8.cd6 Nc6 9.Qd1 Ne5 10.Be5 f6 11.Bc4 fe5 12.Bg8 Rg8 13.Qh5 g6 14.Qe5 Kd8 15.Qf6 Ke8 16.Nf4 Bg7 17.Qe7 1–0. pierre (1910) – Roseeis, internet, 2006.

3.Bb2 Nf6

4.d4 ed4= 5.Bd4 Nc6 6.Bb2 (6.e3 Bc5 7.Bc5 Qa5 8.Nd2 Qc5=) 6...Bc5+= 7.e3 0–0 8.Nf3 d5 9.Be2 Bg4 10.0–0 Re8 11.Nbd2 Qd6 (11...Rc8 12.Nb3 Bb6 13.a3=) 12.c4 (12.Nb3 Ne4=) 12...dc4 (12...Rad8 13.Rb1 b6 14.Nb3 dc4 15.Qd6 Bd6 16.Bc4 Bf3 17.Bf6=) 13.Nc4 (13.Bc4 Rac8=) 13...Qc7 (13...Qe7!?=) 14.Bf6+= gf6 15.Ncd2 (15.Qa4 Be6+=) 15...Rad8 16.Qc2 b6 (16...Nb4 17.Qc4 Be6 18.Qh4+=) 17.Rfd1 Ne5 18.h3 (18.Ne4 Kg7+=) 18...Bh5 (18...Be6 19.Ne4 Qe7 20.Nc5 Qc5 21.Qa4+/–) 19.Rac1 (19.Qf5 Bg6 20.Qf6 Re6+=) 19...Bg6 20.Qb2 (20.Qa4 Re6+=) 20...Nf3 21.Nf3 Rd1 22.Rd1 f5 23.Nd4 f4= 24.e4 f3 25.Bf3+= Qe5 26.Nc6?? Qb2–+ 0–1. Fournier,Frederic (1755) – lobitoferoz (1795), Active, 2006.

4.Be5+= Bc5 5.Nc3 Bf2= 6.Kf2 Ng4 7.Ke1 Ne5 8.d4 Nc4 9.e4 Qh4?? 10.g3+– Ne3 11.gh4 Nd1 12.Nd1 Nc6 13.d5 Nd4 14.Ne3 0–0 15.c3 (15…Re8 16.Bd3+–) 1–0. markmooney – Dazzer, ChessWorld.net, 2005.

4.Be5 Bc5 5.e3 Nc6 +=.

3.c3 Na6

4.Ba3 Bc5 5.e3 Ba3 =.

4.d4 ed4 5.cd4 Nc5 +=.

4.e3 Nc5 5.d4 ed4 =.

4.e4 Nc5 5.Nf3 Qe7 =.

4.Nf3 e4 5.Ne5 Nc5 =.

3.c3 Bc5

4.Qa4 Nc6 5.Nf3 Nf6 =.

4.d4 ed4 5.cd4 d5 =.

4.d4 ed4 5.cd4 Be7 6.Nf3 Nf6 7.e3 0–0 8.Bd3 Nc6 9.a3 d5 10.–0 Be6 11.Nbd2 Rc8 12.Bb2 Na5 13.Ne5 Nc4 14.Ra2 b5 15.Qe2 a6 16.Nb1 Qb6 17.h3 Nd7 18.f4 (18.Nd7 Bd7 19.Rc1 Qe6+=) 18...f5 19.Nc3 Nde5 (19...Nb2?! 20.Nd7 Bd7 21.Nd5=) 20.fe5 Qa5 21.Bc4 Rc4 (21...dc4?! 22.d5 Bd7 23.Rd1=) 22.Qd3 Rfc8 23.Ne2 g5 (23...Bg5 24.Nf4 Bf4 25.ef4+=) 24.Raa1 (better is 24.Ng3!?=) 24...Rc2–/+ 25.Bc1 Kh8 26.Ng3 (26.h4!?+=) 26...Qc3–/+ 27.Qc3 R8c3 28.Re1 Kg7 29.Ne2 Rd3 30.Kf1 Kf7 31.Ng1 (31.h4 gh4 32.Nf4 Rdc3–+) 31...h5 (31...b4 32.g3–+) 32.Re2? (better is 32.Ne2–+) 32...Rd1 33.Kf2 Rcc1 (33...Rcc1 34.Rc1 Rc1–+) 0–1. Fredriksen,Jan Gunnar (1820) – Skrondal,Inge Sandstad (1985), Aslo ASKO CC–ch Group–A, 2006.

4.e3 d5 5.d4 ed4 =.

4.e3 Nf6 5.Nf3 (5.d4 ed4 6.cd4 Be7=) 5...Be7 (5...e4 6.d4 Be7 7.Nfd2+=) 6.Be2 (better is 6.Ne5!? 0–0 7.Be2+=) 6...d6 7.0–0 Bd7 8.d4 h6 (8...e4 9.Nfd2=) 9.Nbd2 (9.de5 de5 10.Ne5 0–0+/–) 9...0–0 (9...e4 10.Ne1=) 10.Rb1 (10.de5 de5 11.Ne5 Be6+=) 10...Nc6 (10...e4 11.Ne1=) 11.Bb2 (11.Rb7 e4 12.Ne1 d5+=) 11...ed4 (11...e4 12.Ne1+=) 12.cd4 a6 13.Bd3 (13.Bc3 b5=) 13...b5 (13...Nb4 14.Be2=) 14.a3 d5 15.Qe2 Re8 16.Rfc1 Rb8 Black prepares b4 (16...Na5 17.a4 ba4 18.Bc3=) 17.Qf1 (17.Nb3+=) 17...a5 Black prepares the advance b4 (17...Na5 18.a4+=) 18.Qd1 (better is 18.Bb5!? Rb6 19.Rc3+/–) 18...b4 19.ab4 ab4 20.Nb3 Na5 21.Na5 Ra8?? 22.Nb3 Bf5 23.Bf5 Ra3 24.Ba3 ba3 25.Ra1 Qa8 26.Bc2 a2 27.Nbd2 Ba3 28.Bb3 Bc1 29.Qc1 Rc8 30.Qd1 Rb8 31.Ra2 Qb7 32.Ra1 Ra8 33.Ra8 Qa8 34.g3 Qe8 35.Kg2 g5 36.h3 Kg7 37.Qc2 g4 38.hg4 Ng4 39.Ne5 Ne5 40.de5 Qe5 41.Nf3 d4 42.Ne5 de3 43.fe3 f6 44.Nf3 f5 45.Qc4 Kg6 46.Qg8 Kh5 47.Qg5! (47.Qg5 hg5 48.Bc2+–) 1–0. Fournier,Frederic (1960) – moreirarox (1795), Active Blind, 2008.

4.e4 Nc6 5.Bc4 Nf6 =+.

4.Nf3 e4 5.d4 Be7 =+.

3.c3 Nc6

4.Ba3 Qa5 5.e3 b6 =.

4.Qa4 Bc5 5.Nf3 Nf6 =.

4.d4 ed4 5.cd4 Qf6 +=.

4.e3 Bc5 5.d4 Bd6 =.

4.Nf3 e4 5.Ng1 Bc5 =+.

3.c3 Qf6

4.Ba3 Na6 5.d4 ed4 +=.

4.d3 Bc5 5.Nf3 Nc6 =.

4.d4 ed4 5.cd4 Bc5 +=.

4.e3 Bc5 5.d4 ed4 +=.

4.e4 Bc5 5.Nf3 Nc6 =.

3.c3 Nf6

4.Ba3 Nc6 5.e3 d5 +=.

4.d4 ed4 5.cd4 d6 =.

4.e3 Bc5 5.d4 ed4 =.

4.e4 Qa5 5.d4 ed4 =+.

4.Nf3 e4 5.Ne5 Bc5 =+.

3.c4 Bc5

4.Bb2 d6 5.e3 Nf6 6.a3 Be6 7.Nf3 0–0 8.Be2 Nc6 9.0–0 Rc8 10.d4 ed4 11.ed4 Nd4 12.Nd4 Bd4 13.Bd4 Qa5 14.Bc3 Qg5 15.Bd2 Qg6 16.Bf3 b6 17.Nc3 Bd7 18.Re1 Bc6 19.Bc6 Rc6 20.Nd5 Nd5 21.cd5 Rc5 22.Rc1 Rc1 23.Bc1 h6 24.Be3 Rc8 25.Qf3 Rc2 26.h3 Qg2 1–0. aqqqpppa (1725) – lchuza_otro, lichess.org, 2017.

4.Nc3 Nf6 5.e3 Nc6 6.d3 d5 7.cd5 Nd5 8.Bd2 Ndb4 9.Qb1 Bf5 The pressure on d3 grows 10.Ne4 Be4 11.de4 Nd4 (better is 11...Qd6=) 12.ed4+/– Qd4 13.Bb5 Ke7 14.Nh3 (14.Bb4!? Qf2 15.Kd1 Rhd8 16.Bd3 Bb4 17.Qb4 Kf6 18.Qd2+/–) 14...Rad8 15.Bg5 f6 16.0–0 fg5 17.Ng5 Rhf8 18.Qb3 Qd6 19.Rad1 (better is 19.Rac1 Rc8 20.Rcd1+=) 19...Bf2?? (better is 19...Qg6 20.Rd8 Rd8+=) 20.Kh1+– Bd4 (20...Nc6 21.Rd6 Rd6+–) 21.Qf7!! (21.Qf7 Rf7 22.Rf7) 1–0. Tiller,B (2370) – Lovik,L (2295), Arctic Chess Challenge, Tromso NOR, 2009.

4.e3 d6 5.Nc3 Nc6 6.g3 Be6 7.Rb1 Rb8 8.Qa4 Nge7 9.Bg2 0–0 10.Nge2 Bd7 11.Qd1 Qc8 12.0–0 Bh3 13.d4 Bg2 14.Kg2 Bb6 15.Na4 Ba5 16.Ba3 Rd8 17.d5 Nf5 18.e4 Nh6 19.dc6 Qc6 20.Nb2 Qe4 21.f3 Qc6 22.Qd5 Qd5 23.cd5 b5 24.Nd3 Nf5 25.Bc1 Ne7 26.f4 e4 27.Nb4 Rdc8 28.Rd1 Rc4 29.Rd4 Rbc8 30.Rc4 Rc4 31.Ba3 h5 32.Nc6 Nc6 33.Rb5 Rc2 34.dc6 Re2 35.Kf1 Re1 36.Kf2 e3 37.Kf3 Bb6 38.Rb6 ab6 39.c7 Rf1 40.Ke4 e2 41.c8Q Kh7 42.Bb4 Rb1 43.Bd2 e1Q 44.Be1 Re1 45.Kf3 Ra1 46.Qc2 Kg8 47.Ke4 Kf8 48.Kd5 Re1 49.Kc6 Ke7 50.Kb6 g6 51.a4 Ra1 52.a5 h4 53.gh4 Rg1 54.a6 Rg4 55.Qe2 1–0. Lehr,Thomas – Zimmermann,Manfred, 50. LEM Vormeister–Kandi. A, 1995.

4.e3 Nf6 5.Bb2 Nc6 6.a3 0–0 7.Qc2 Re8 8.Nc3 d6 9.Nf3 e4 10.Ng5 Bf5 11.f3 (better is 11.Rb1!?–/+) 11...Nd4!–+ 12.Qb1 (12.ed4 ef3 Double attack) 12...ef3 13.e4? (better is 13.Bd3 Bd3 14.Qd3 fg2 15.Rg1–+) 13...h6 14.Nf3 (14.gf3 hg5 15.Bg2–+) 14...Ne4 15.Ne2 (15.Ne4 Be4 16.Kd1 Bb1 17.Rb1 Nf3 18.gf3 Qa5–+) 15...Ne2 (better is 15...Nf3 16.gf3 Qh4 17.Kd1 Nf2 18.Kc1 Qc4 19.Bc3 Bb1 20.Kb1 Qb3 21.Bb2 Nh1–+) 16.Be2 Ng3!! 17.Qd1 (17.hg3 Bb1 Discovered attack) 17...Ne2 18.Kf1 (18.Be5 Re5 19.d4 Nd4 20.Ne5 Nc2 21.Qc2 Bc2 22.Kd2–+) 18…Bd3 (18...Bd3 19.Bd4 Nd4 20.Kf2 Ne2 21.Nd4 Qf6 22.Ke1 Nd4 23.Qe2 Nf3 24.gf3 Qa1#) 0–1. Palacios Sanchez,Gabriel – Fortes Gil,Josep Maria, Barcelona Rubi op–A 5th, 2004.

4.e4 Nc6 5.Nf3 d6 6.Bb2? (6.Nc3 Nf6 7.Be2 Bb4=+) 6...Nge7 (6...Qb6 7.Qb3 Bf2 8.Kd1–+) 7.d4 (7.Nc3 0–0=+) 7...ed4 8.Nd4?? (8.Nbd2–/+) 8...0–0 (better is 8...Qb6 9.Qb3 Nd4 10.Qb6 Bb6–+) 9.Nc6 (9.Nb3 Qb6 10.Qd2 f5=) 9...Nc6–/+ 10.Nc3 (10.Qd2 f5 11.Nc3 Qe7–/+) 10...f5 (10...Bf2 11.Kf2 Qb6 12.Kg3 Qb2 13.Qc1–+) 11.ef5 Bf5–+ 12.Be2? Nd4?? 13.Nd5?? Nc2–+ 14.Kf1 Na1 15.Qa1 Qd7 16.Qc1 Bg6 17.Qg5 Rf2 18.Ke1 Re8 19.Qd2 Ree2 (20.Qe2 Re2 21.Ke2 Qg4 22.Kd2 Qg2 23.Kd1 Qc2 24.Ke1 Bd3 25.Ne7 Kf7 26.Rf1 Bf1 27.Kf1 Qf2) 0–1. onigiri (1790) – wstanevans (2095), net–chess.com, 2006.

3.d4 Nc6

4.c3 ed4= 5.cd4 Bc5 6.Nf3 d5 7.e3 =.

4.c3 ed4 5.cd4 Qf6 +=.

4.c3 ed4= 5.cd4 Nf6 6.e3 Be7 (6...d6 7.d5 Ne7 8.Bb2 Ned5 9.Bb5 Bd7 10.Bd7 Qd7 11.cd6 Bd6 12.Nf3+=) 7.Nf3 0–0 (7...d6 8.d5 Nb8 9.Nc3 dc5 10.e4+/–) 8.Bd3 (better is 8.d5!? Qa5 9.Bd2+–) 8...d6+= 9.cd6 Bd6 10.0–0 Nb4 11.Be2 (11.Ba3 Be6+/–) 11...Ng4 (11...Bf5 12.Nc3+=) 12.h3 (12.e4 Qc7 13.a3 Nc6+/–) 12...Nf6 13.Bd2 Nbd5 14.Nc3 Nc3 15.Bc3 Ne4 16.Bb2 Be6 17.a3 h6 18.Rc1 a6 19.Bd3 Bf5 20.Qc2 Qe7 21.a4 Rad8 22.Rfd1 Rc8 23.Qb1 Rc1 24.Rc1 Rb8 25.Qc2 Rc8 26.Qb1 Nd2?? 27.Nd2 Rc1 28.Bc1 Bd3 29.Qd3 Bb4 30.Nf3 Qc7 31.Bb2 Qa5 32.Qb3 Qb6 33.Ne5 Kh7 34.Nc4 Qg6 35.Qb4 Qb1 36.Kh2 Qc2 37.Qc3 Qf2 38.d5 f5 39.Qg7 1–0. Fournier,Frederic (1750) – ibarrangelu (1730), Active, 2009.

4.d5 Nb8 5.Bb2 f6 +=.

4.d5 Nb8 5.d6 +=.

4.d5 Nd4 5.d6 (5.e3 Nf5 6.e4 Nh4+=) 5...Qa5+= 6.Bd2 (better is 6.c3!?+=) 6...Qc5=+ 7.c3 (7.Nc3 Nf6=+) 7...Nf5 8.e4 Nd6 9.Nf3 (9.Be3 Qc6 10.Qh5 Qe4–/+) 9...Ne4 10.Ne5?? (better is 10.Be3 Qa5 11.Qc2–/+) 10...Qe5 (10...Qf2) 11.Be2 (11.Qe2 d6–+) 11...Bc5 12.0–0 Ngf6 13.Be3 Nf2 14.Bf2 Bf2 15.Rf2 0–0 16.Bf3 d6 17.Qe2 Qc5 18.Nd2 Bd7 19.Nb3 Qb6 20.Kh1 Rfe8 21.Qd2 Be6 22.Re2 Bb3 23.Re8 Re8 24.ab3 Qb3 25.Re1? Re1 26.Qe1 g6 27.h4 a5 28.h5 a4 29.h6 Kf8 30.Qe3 Qe6 31.Qa7 Qe8 32.Qa4 Qa4 33.c4 Qa1 34.Kh2 Qe5 (35.g3 Ne4 36.Be4 Qe4–+) 0–1. uno (1775) – EverClear (2085), ICC, 2003.

4.d5 Nce7 5.d6 Nc6 6.Bd2 f5 7.e4 f4 (better is 7...fe4!? 8.Nc3 Nf6+/–) 8.Nc3+– Nf6 9.Nf3 b6 10.Bc4 h6?! (10...Na5 11.Qe2 (11.Ne5?! Nc4 12.Nc4 Ba6+–) 11...bc5 12.Nb5+–) 11.Nd5 Nd5 12.ed5 Nb8 13.Ne5 Ba6 (13...Qf6 14.Qh5 g6+–) 14.Qh5 (14...g6 15.Qg6) 1–0. Frank Bendig (1955) – ricar67 (1705), ChessWorld.net, 2003.

4.e3 d6 5.cd6 Qd6 (5...Bd6 6.d5 Nce7 7.e4+=) 6.Nf3 ed4 7.ed4 Nf6 8.Bb5?? (better 8.Be2+=) 8...Ke7?? (better 8...Qb4 9.Nc3 Qc3 10.Bd2 Qb2–+) 9.0–0 (9.Ba3 Nb4 10.c3 Nfd5+–) 9...Bd7?? (9...Kd8 10.Ng5 Be6 11.c4+–) 10.Bc6 (better 10.Ba3 Nb4 11.c3+–) 10...Bc6?? (better 10...Qc6 11.Re1 Be6+–) 11.Ba3 (11.Ba3 Ke8 12.Bd6 Bd6 13.c4+–) 1–0. BeepBeepImAJeep (2560) – boredmaks (1940), lichess.org, 2017.

4.e3 d6 5.cd6 Qd6 (5...ed4 6.ed4 Bd6 7.Nf3+=) 6.Nf3 ed4 7.ed4 Bg4 8.c3 Nf6 9.Be2 Be7 10.0–0 0–0 11.h3 White gets in control 11...Bh5 12.Nbd2 Bg6 13.Nc4 Qd7 (13...Qc7!?+=) 14.Nfe5 Ne5 15.Ne5 Qc7 16.Bb2 (16.Ng6 hg6 17.Qb3 Bd6+–) 16...Rac8 (16...Be4 17.c4+–) 17.Qb3 (17.Ng6 fg6 18.Qb3 Kh8 19.c4+–) 17...a6 (17...Be4 18.Rfe1+–) 18.a4 (18.Ng6 hg6 19.c4 Ne4+–) 18...Bd6 (18...Bf5 19.Rfe1+–) 19.f4 (19.Ng6!? hg6 20.Bd3+–) 19...Ne4+– Increases the pressure on the backward pawn 20.f5 (20.Rfe1 Bf5+–) 20...Nd2?? (20...Be5 21.fg6 Bh2 22.Kh1 hg6 23.c4 Ng3 24.Kh2 Ne2 25.g3 Qc4 26.Qb6–/+) 21.Qd1 (better 21.Qd5 Nf1 22.Rf1 Be5 23.Qe5+–) 21...Nf1=+ 22.Qf1? (better 22.fg6 Be5 23.gh7 Kh7 24.Kf1=+) 22...Be5–+ 23.de5 Qc5?? (better 23...Qb6 24.Kh2 Qb2 25.fg6 hg6–+ (25...Rc3?! 26.gh7 Kh7 27.Rb1–/+)) 24.Kh1+= Qe5 25.fg6 fg6 26.Bf3 b5 27.ab5 ab5 28.Qe1 Qe1 29.Re1 Kh8 30.Ba3 Rfe8 31.Re8 Re8 32.Bb4 Re5 33.Kg1 h5 34.Kf2 Kh7 35.Bd6 Rf5 36.Ke3 Rf6 37.Be5 Re6 (37...Rb6 38.Bd5 Ra6 39.Kd4+–) 38.Kf4 (38.Kd4 Kh6+–) 38...g5 (38...Ra6 39.g4+–) 39.Kf5 Re8 (39...Ra6+–) 40.Bh5 Rc8 41.Kg5 Rc5 42.Kf5 b4 43.cb4 Rb5 44.Bg6 Kh6 (44...Kg8+–) 45.g4 Rb4 46.g5 1–0. BeepBeepImAJeep (2610) – FcNankatsu (2140), lichess.org, 2016.

4.e3 Nf6 5.Bb2 d5 +=.

4.de5 Qa5 5.Qd2 Qc5 6.Bb2 d6 (better is 6...Ne5!? 7.Nf3 Nf3 8.ef3 Qc6=) 7.ed6+/– Nf6 8.Ba3 Qe5 9.c3 Bd7 (better is 9...Ne4!? 10.f4 Qe6= (< 10...Nd2 11.fe5 Nf1 12.Kf1+=)) 10.Nf3+– Ne4?? (better is 10...Qe6 11.Bc5 Ne4+/–) 11.Ne5 Nd2 12.Nd7 (12.Kd2?! Ne5 13.e4 Rc8+–; 12.Nd2?! Ne5 13.f4 Ng6+–) 12...Nb1 13.Rb1 Kd7 14.Rb7 Ke6 15.e4 Bd6 (15...Ke5 16.Rb5 Kf6+–) 16.Bc4 Ke5 17.Rb5 Kf4 (17...Kf6 18.Rf5 Ke7 19.Rf7 Ke8 20.Bd6+–) 18.Bd6 (18.Bc1 Kg4 19.Be2 Kh4 20.Bg5) 18...Ke4+– 19.f3 Ke3 20.Ba3 Rhe8 (20...Rhd8 21.Bc1 Rd2 22.Bd2) 21.Bc1 1–0. freddy007 (2005) – BLACKBEARD (2275), ChessWorld.net, 2003.

4.de5 Ne5 5.Bb2 Nc6 +=.

4.Nf3 ed4 5.Ba3 Nf6 =.

4.e3 ed4

5.ed4 d5 6.cd6 Bd6+= 7.Nf3 Be6 8.Bd3 Nge7 9.0–0 0–0 10.c4 Nb8 (10...Nb4 11.c5 Bc5 A) worse 12.dc5 Qd3 13.Nd4 Rfd8 14.Qd3 Nd3 15.Ne6 A1) 15...Nc1 16.Nd8 (16.Rc1?! fe6 17.Nc3 Nc6=) 16...Ne2 17.Kh1 Rd8 18.Na3+–; A2) 15...fe6–/+; B) 12.Bh7 Kh7 B1) worse 13.dc5 Qd1 14.Rd1 Nc2–/+ (worse 14...Ba2 15.Rd7+–); B2) 13.a3=) 11.d5 (11.Re1 h6+–) 11...Bd7 (11...Bf5 12.Re1+–) 12.Bb2 (12.Qc2 Ng6 13.c5 Be7+–) 12...Ng6 (12...Na6 13.Qc2 f5 14.Re1+–) 13.Nc3 (13.Bg6 fg6 14.Qd4 Rf7+–) 13...Nh4 14.Ne4 Bg4 15.Be2 Nf3 (15...Bf3!? 16.Bf3 Re8+–) 16.Bf3 Bf3 17.Qf3 (17.gf3?! Bf4+=) 17...Bc7 (17...Re8 18.Rfe1 Be5 19.Qh5+–) 18.Qg4 (18.d6!? Bd6 19.Qg4 Bh2 20.Kh2 Qc7 21.Qg3 Qg3 22.Kg3 Rd8+–) 18...f6 19.d6 Bd6? (better 19...Ba5+–) 20.Rad1 (better 20.Qe6!? Kh8 21.Nd6 Qc7+–) 20...Bh2 21.Kh2 Qc7 22.Kg1 Nc6 (22...f5 23.Qg3 Qg3 24.Ng3 g6+–) 23.Nf6 (better 23.Rd7 Qd7 24.Qd7 Rab8+–) 23...Kh8 (23...Rf6 24.Bf6 h5+–) 24.Rd7 Qb6 (24...Qd7 25.Nd7 Rf7+–) 25.Qg7 1–0. BeepBeepImAJeep (2675) – mariuscristian221 (1735), lichess.org, 2017.

5.ed4 d5 6.cd6 Bd6+= 7.Nf3 Nf6 8.Bd3 0–0 9.c3 (9.0–0!?+=) 9...Re8= 10.Be3 Ng4 11.Qd2 (11.0–0 Ne3 12.fe3 Re3=) 11...Ne3 (11...Bf4! 12.Kf1 Ne3 (worse 12...Re3 13.fe3 Ne3 14.Kg1+=; 12...Be3?! 13.fe3 Ne3 14.Kf2=+) 13.fe3 Be3–/+) 12.fe3=+ Bf4 13.Be2 (13.Qc2!? Re3 14.Kf2=+) 13...Be3 Opening the e–file gets Black a lot of play 14.Qd3 Bg4 15.Nbd2 Rc8 16.Ne4 (16.Rd1–/+) 16...Bf5 (better 16...Bd4!? 17.Nd4 Be2 18.Ke2 Qd5–+) 17.Qe3=+ Re4 18.Qd2 Qe7 19.Kf2 Re8 20.Rhe1 Bg4 21.Bb5? (better 21.Rad1!?=+) 21...Bf3–/+ 22.gf3 Qh4 23.Kf1 Qh3 24.Kg1 Re1 (better 24...Qf3 25.Re4 Re4–/+) 25.Re1= Threatening mate: Rxe8 25...Rc8 (25...Rf8 26.Qf4+=) 26.Bc6 (better 26.d5!? Nb8 27.d6 Qf3 28.Qd4+–) 26...bc6= 27.Qg2 Qf5 (27...Qh6 28.Qg4 Rf8 29.f4=) 28.Qg4+= Qg4 29.fg4 Kf8 30.Rb1 Rc7 31.Kf2 Ke7 32.Ke3 Kd6 33.Kd3 c5 34.Rb8 cd4 35.Kd4 The passed pawn on c3 quickly leads to threats 35...Re7 36.Ra8 Ke6 37.c4 Kf6 38.c5 Kg5 39.c6 Kg4 40.Kd5 f5 41.Kd6 Re1 42.c7 Rd1 43.Ke5 Rc1 (43...Re1 44.Kd4 Rd1 45.Ke3 f4 46.Ke2+–) 44.c8Q Rc8 45.Rc8 f4 (45...g5 46.h3! Kh3 47.Kf5+–) 46.Rg8 (46.Rc7!? g6+–) 46...g5 47.Kf6 (better 47.Ra8 Kh3 48.Ra7+–) 47...h5 (47...h6 48.Rh8 Kh5+–) 48.Rg5 Kf3 49.Rh5 Ke3 (49...Kg4 50.Rf5 a6+–) 50.Rf5 f3 51.h4 f2 52.h5 Ke2 53.h6 f1Q 54.Rf1 Kf1 55.h7 Ke2 56.h8Q Kd3 57.Qb8 Kc2 58.Qa7 (58.Qa7 Kb2 59.a4 Kb3 60.Qd4 Kc2 61.a5 Kb3 62.a6 Kc2 63.a7 Kc1 64.Qd3 Kb2 65.a8Q Kc1 66.Qaa3) 1–0. BeepBeepImAJeep (2610) – Fide15 (2235), lichess.org, 2017.

5.ed4 d6 6.cd6 Qd6 The passed pawn on d4 will quickly become a dangerous weapon 7.Nf3 Nf6 8.Be2 Be7 9.0–0 0–0 10.c4 Bg4 11.Nc3 Rfd8 12.d5 Ne5 13.Ne5 (better 13.Nb5 Qb8 14.Qb3+–) 13...Be2?? (better 13...Qe5 14.Bb2 Bd6+=) 14.Qe2+– (14.Ne2?! Qe5 15.Bf4 Qe4+=) 14...Bf8 15.Bf4 (15.Bf4 Rac8 16.Rab1+–) 1–0. BeepBeepImAJeep (2550) – phaseone (2110), lichess.org, 2015.

5.ed4 d6 6.cd6 Bd6 7.Nf3 Nge7 8.Bd3 Ng6 9.0–0 0–0 10.c3 Be6 (10...Re8 11.Ng5 h6 12.Bg6 hg5 13.Bd3+–) 11.Nbd2 (11.Ng5 Qd7+–) 11...a6 (11...Nf4 12.Ne4+=) 12.Ne4+– Bf4 (12...Be7 13.Re1+–) 13.Ng3 (13.Nc5!? Bc1 14.Rc1 Ba2 15.Nb7+–) 13...Bc1 14.Qc1 Rc8 15.Qe3 Re8 16.Qd2 Bg4 17.Be4 f5 (better 17...b5!?+–) 18.Bf5+– Bf3 19.Bc8 Bg2 20.Kg2 Qc8 21.Qg5 (21.Rae1 Rf8 22.Re4 Na5+–) 21...Rf8 (21...Nd8+–) 22.f4 Rf6 (22...Qd7 23.f5 Qd5 24.Kg1+–) 23.f5 Nge7 (23...h6 24.Qg4 Nge7 25.c4+–) 24.Nh5 Qf8 (24...Rf7 25.f6 h6+–) 25.Nf6 Qf6 26.Qf6 gf6 27.Rae1 Kf7 28.c4 (better 28.Re4+–) 28...Nd5 (28...Nd4 29.Re4 Ndf5+–) 29.cd5 Nd4 30.Re6! Nf5 (30...Ne6 31.fe6) 31.Rf5 h6 (31...Kf8 32.d6 Kf7 33.Rff6 Kg7 34.d7 b5 35.d8Q h5 36.Qe7 Kg8 37.Rf8) 32.Rff6 (32.Ref6 Ke7 33.d6 Kd8 34.Rc5 h5 35.Rc7 Ke8 36.Re7 Kd8 37.Rf8) 32...Kg7 33.h4 (33.d6 h5 34.d7 h4 35.Rg6 Kf7 36.d8Q h3 37.Kh3 b5 38.Qf6) 33...h5 34.Kf3 (34.d6 a5 35.d7 b5 36.Rg6 Kf7 37.d8Q b4 38.Qf6) 34...b5 (34...Kg8 35.d6 Kg7 36.d7 b6 37.Rg6 Kf7 38.d8Q b5 39.Qf6) 35.Kf4 (35.d6 a5 36.d7 a4 37.Rg6 Kf7 38.d8Q b4 39.Qf6) 35...b4 36.Ke5 (36.Kg5 a5 37.Re7 Kg8 38.Kg6 b3 39.Re8) 36...b3 37.ab3 (37.Re7 Kg8 38.Ra6 Kf8 39.d6 ba2 40.Ra8) 37...a5 (37...Kg8 38.d6 a5 39.d7 Kh8 40.d8Q Kg7 41.Re7) 38.Re7 Kg8 39.Ra6 (39.Ra6 Kf8 40.d6 a4 41.Ra8) 1–0. BeepBeepImAJeep (2640) – castlebit (1775), lichess.org, 2017.

5.ed4 d6 6.cd6 Bd6 7.Nf3 Nf6 8.Bd3 0–0 9.0–0 Bg4 10.c3 Qc7 11.h3 Bh5 12.Be3 (12.Bg5 Nd5+–) 12...Rfe8 13.Nbd2 Nd5 14.Ne4 Bg6 (14...Rad8 15.Nd6 Qd6 16.Bd2+=) 15.Nd6 Qd6 16.Bg6 Ne3? (16...Qg6 17.Re1+=) 17.fe3?? (better 17.Bf7!? Kf7 18.fe3+–) 17...hg6 (17...Qg6!? 18.Qb3 b6+–) 18.Qd3+– Qd5 19.Rfe1 Re4 (19...f5 20.c4 Qf7 21.Rad1+–) 20.Nd2 Re7 21.e4 Qd7 22.Rab1 Rae8 23.Qb5 White prepares the advance e5 23...b6 24.e5 f6 25.Nf3 fe5 26.de5 Qc7? (26...Rd8 27.Qb3 Qe6 28.Rbd1+–) 27.Qc4 (better 27.Qd5 Kh8 28.Re4+–) 27...Kh8?? (27...Rf7 28.Ng5 Ne5 29.Qd5+–) 28.e6 (28.Qh4 Kg8 29.Ng5 Rf7+–) 28...Qd6 (28...Kg8 29.Qh4 g5 30.Ng5+–) 29.Rbd1 (better 29.Qh4 Kg8 30.Ng5 Qc5 31.Kh1 Qg5 32.Qg5+–) 29...Qc5 30.Qc5 bc5 31.Ng5 Nd8 (31...Na5 32.Rd5 Kg8 33.Rc5+–) 32.Rd5 (better 32.Rd8 Rd8 33.Nf7 Kg8 34.Nd8 Kf8+–) 32...Ne6 33.Rde5 Ng5 34.Re7 Rf8 (34...Re7 35.Re7 Kg8 36.Kf2+–) 35.Re8 (35.Ra7!? Rf4+–) 35...Re8 36.Re8 Kh7 37.Re5 (37.Re5 Nf7 38.Rc5+–) 1–0. BeepBeepImAJeep (2640) – IMAndrasToth (2435), lichess.org, 2016.

5.ed4 Qf6 6.Nf3 (6.c3 d6 7.Qe2 Be7+–) 6...Bc5+= Now all is on d4 7.c3 Bb6 8.Be2 (8.Qe2 Qe7+=) 8...d5= 9.0–0 Bf5 10.Nbd2 (10.Re1 Nge7+=) 10...Nge7= 11.a4 0–0 12.Nb3 Bc7 13.Bg5 Qg6 14.Bh4 (14.Rc1 Rfe8=+) 14...Be4 (14...Bc2 15.Qd2 Bb3–+) 15.Bg3? (better 15.Be7 Ne7 16.Nbd2=+) 15...Bg3–+ 16.hg3 b6 (better 16...Bc2 17.Nh4 Bd1 18.Ng6 Be2 (18...Ng6?! 19.Rad1 Rfe8 20.Rfe1=; 18...Bb3?! 19.Nf8 Kf8 20.Rfe1–+) 19.Ne7 Ne7–+) 17.Nbd2 Nf5 18.Re1 Rfe8 19.Bb5 Rac8 20.Bc6 (20.Ne5 Ne5 21.Be8+=) 20...Rc6?? (better 20...Qc6 21.Rc1 Bf3 22.Qf3 Nd6=+) 21.Ne5 Qd6 22.Nc6 Qc6 23.c4 (better 23.Qb3 Nd6 24.Ne4 de4 25.c4+–) 23...h5? (23...dc4!? 24.Ne4 Re4+=) 24.Ne4 (24.Qh5!? g6 25.Qg4 Nd6 26.cd5 Bd5+–) 24...de4 25.Qh5 (25.Rc1 Qf6+–) 25...g6 (25...Nd4!? 26.Rac1 Nb3+–) 26.Qd1 e3 (26...Qc4!? 27.a5 Qd5+–) 27.fe3+– White is in command 27...Ng3 (27...Qc4 28.Qf3+–) 28.Qf3 Qc7 (28...Ne4 29.Rec1+–) 29.Rac1 (29.e4 Nh5 30.Qb3 Rd8+–) 29...Nf5 30.c5 bc5 31.Rc5 (31.dc5 Re5 32.c6 Kg7+–) 31...Qe7 32.Re5 Qd8 (32...Qd7 33.Re8 Qe8 34.Qd1+–) 33.Re8 (33.Qf4 Qd7+–) 33...Qe8 34.Kf2 Qa4 35.Re2 Qb3 (35...Nd6 36.Qd5 Nc4 37.e4+–) 36.Qa8 Kg7 37.Qa7 Qd3 38.Qc5 Nh4 (38...Qe4+–) 39.Qe5 Kh7 (39...Kh6 40.e4+–) 40.Qf4 (better 40.g4!? g5 41.Qg5 Ng6+–) 40...Nf5 41.g4 Ng7 (41...Nh6 42.g5 Nf5 43.Rb2+–) 42.Kf3 (better 42.Qf7!? g5+–) 42...Qd1 43.Kf2 (better 43.Qf7 Qf1 44.Rf2 Qh3 45.Ke4 Qg4 46.Kd5 Qg5 47.Kc4 Qh6+–) 43...Ne6?? (43...Qd3 44.Qf7 g5+–) 44.Qf7+– Ng7 45.Kf3 (better 45.Qd7!? Qh1+–) 45...Qf1 46.Rf2 Qh1 (46...Qh3 47.Ke4 Qg4 48.Kd5+–) 47.Kg3 (47.Ke2 Qh4 48.Qd7 g5+–) 47...Qg1 (47...Qe1 48.Qe7 Qg1 49.Kf3 Qd1 50.Kf4+–) 48.Rg2 (48.Kh3 Kh6 49.Qf4 g5+–) 48...Qe1 (48...Qe3 49.Qf3 Qe1 50.Qf2 Qc3 51.Kh4 Qc6+–) 49.Qf2 Qd1 (49...Qb1+–) 50.Rh2 Kg8 51.Qa2 (51.Qa2 Kf8 52.Rf2 Nf5 53.gf5 Qg1 54.Kf4 g5 55.Ke5 Qg3 56.Ke4 Qg4 57.Kd5+–) 1–0. BeepBeepImAJeep (2600) – Mikefreeman (2195), lichess.org, 2016.

5.ed4 Qf6 6.Nf3 (6.c3 d6 7.Qe2 Be7 8.cd6 Qd6+–) 6...Nge7 (6...Bc5!? 7.Bg5 Qe6 8.Be2 Be7+=) 7.Be2 Nd5 (7...Nf5 8.c3+–) 8.c3 (8.Bg5 Qg6 9.0–0 Be7+–) 8...Be7 (8...d6 9.c4 Ndb4 10.cd6 Bd6 11.0–0+–) 9.0–0 0–0 10.Bg5 Qg6 11.Be7 Nce7 12.Ne5 Qe6 13.c4 Nf4 14.Nc3 (14.Bg4 Qh6+–) 14...Neg6 (14...Nc6!? 15.Bg4 f5+–) 15.Ng6 fg6 16.Bf3 Rb8 (16...Qc4 17.Qb3 Qf7 18.Nb5+–) 17.g3 (17.Nd5 Qf7+–) 17...Nh3 (better 17...Qc4 18.Qb3 Qb3 19.ab3 Ne6+–) 18.Kg2 Kh8 19.Bg4 (better 19.Bd5!? Qf5+–) 19...Qc4+– 20.Rc1 (better 20.Qb3 Nf4 21.gf4 Qd4 22.Rad1 Qc5 23.Rfe1+–) 20...d5?? (better 20...Ng5+–) 21.Bh3+– Bh3 22.Kh3 Rbe8 23.Kg2 b6 24.Ne4 (24.Qa4!? Qd3+–) 24...Qa2 25.Nc3 Qb2 (25...Qc4 26.Na4 Qa6 27.cb6 ab6 28.Rc6+–) 26.c6 Rc8 27.Rc2 (better 27.Nd5 Qa3 28.Ne3 Qd6+–) 27...Qb3 28.Ne2 Qa4 29.c7 (29.Rc3 Qa5+–) 29...Qd7 30.Qc1 Rf7 (30...Qf5 31.f3+–) 31.Nf4 g5 32.Nd3 h6 (32...Qf5 33.Ne5 Re7+–) 33.Ne5 Qf5 34.Nf7 Qf7 35.Rc6 Qf5 (35...a6 36.Qc3 b5 37.Rc1+–) 36.Re1 Qe4 (36...Qf7+–) 37.Re4 de4 38.d5 Rf8 (38...a6 39.Qc3 Kh7 40.Qe5 h5 41.Qf5 Kg8 42.Qc8 Kh7 43.Qf5 g6 44.Qg6 Kh8 45.c8Q) 39.d6 (39.c8Q Kg8 40.Rh6 gh6 41.Qe6 Rf7 42.Qg6 Kf8 43.Qc8 Ke7 44.Qge6) 39...Rf2 (39...Rc8 40.d7 Rf8 41.c8Q Rd8 42.Qd8 Kh7 43.Qc4 g4 44.Qcg8) 40.Kf2 e3 (40...Kh7 41.Qe3 h5 42.Qe4 g6 43.d7 Kg7 44.Qg6 Kf8 45.d8Q) 41.Ke3 Kh7 42.c8Q g4 (42...h5 43.Qc2 g6 44.Rc7 Kh6 45.Qf8) 43.Qc2 g6 44.Rc7 1–0. BeepBeepImAJeep (2625) – Berthe (2380), lichess.org, 2015.

5.ed4 Nf6 6.Nf3 d6 7.cd6 Bd6 8.Bd3 0–0 9.0–0 Bg4 10.c3 Re8 11.Bg5 h6 12.Bh4 Bh5 (12...Bf4 13.h3 Be6 14.Be4+=) 13.Bg3 (13.Nbd2 Rc8+–) 13...Be7 (13...Bg3!? 14.hg3 Nd5=) 14.Nbd2+– Ng4 (14...Nd5 15.Re1+–) 15.Nc4 (15.Qb1 Na5+–) 15...Nf6+– 16.Be2 (16.Rb1 b6+–) 16...Nd5 Black gets strong initiative 17.Rc1 Bf6 (17...Bg5 18.Rc2+=) 18.Nfe5 (18.Nd6 Re7+–) 18...Be2+= 19.Qe2 Ne5 20.Ne5 Rc8 21.Qb5?? (better 21.Qf3+–) 21...Nc3–/+ 22.Qb7? (better 22.Rc3 Rc3 23.Qb7–/+) 22...Ne2–+ 23.Kh1 Rc1 Do you see the mate threat? 24.Qf7 Kh7?? (better 24...Kh8 25.Rc1 Nc1–+) 25.Qg6= Kg8 Threatening mate: Rxf1 26.Rc1?? (26.Qf7 Kh8 27.Rc1 Nc1 28.h4–+) 26...Nc1–+ 27.Qf7 Kh8 28.Qg6 (28.h4–+) 28...Be5 29.Be5 (29.Qf7 Bd4 30.h3 Rf8–+) 29…Re5! (29...Re5 30.h3 Qd4–+) 0–1. BeepBeepImAJeep (2485) – Amaoko (2320), lichess.org, 2018.

5.ed4 Nf6 6.Nf3 d6 7.cd6 (7.Qe2 Be6 8.c4 d5 9.cd5 Nd5+–) 7...Bd6+= 8.Bd3 0–0 9.0–0 h6 10.c3 Bg4 11.h3 Bh5 (11...Be6 12.c4+=) 12.Be3 (12.g4 Bg6 13.Bg6 fg6+–) 12...Rc8 13.Nbd2 a6 14.Rb1 b5 15.a4 ba4 (15...Nd5 16.Ne4 (16.ab5?! Nc3 17.Qb3 Na5=) 16...ba4 17.c4+–) 16.Qa4 Nb8 (16...Nd5 17.Rfc1 Re8+–) 17.Ba6 (better 17.c4!?+–) 17...Rc3 (17...Na6 18.Qa6 Rc3 19.Ne5+–) 18.Be2 Ra3 19.Qc2 (19.Qb5 Nd5 20.Rb3 Rb3 21.Qb3 Ne3 22.fe3 Qe7+–) 19...Re8?? (better 19...Bg6!? 20.Qb2 Bb1 21.Rb1 Nd5=+) 20.Nc4 (20.Bc4 Kf8 21.Ne5 Na6+–) 20...Ra6 (20...Bg6!? 21.Qd2 Bb1 22.Na3 Be4+–) 21.Nce5+– Ra3 (better 21...Bf3!? 22.Bf3 Nfd7+–) 22.Bc4 Bf3 (22...Be5 23.Ne5 (23.de5?! Bf3 24.ef6 Be4+–) 23...Nbd7 24.g4 Ne5 25.de5 Ng4 26.hg4+–) 23.Nf3 (better 23.Nf7!? Bh2 24.Kh2 Qc7 25.Nd6 Kf8+–) 23...Nbd7 (23...Ra7 24.Ne5+–) 24.Rb3 (24.Qg6 Kh8 25.Bf7 Re7+–) 24...Ra8 (24...Rb3 25.Bb3 Qe7 26.Nh4+–) 25.Rfb1 (25.Bh6!? Ne4 26.Re3 gh6 27.Re4 Qf6+–) 25...Rc8 26.Rc3 (26.Rb7!?+–) 26...Ne4+– 27.Rcb3 (27.Rd3+–) 27...Ndf6 (27...Nef6 28.Rb7 Re7+–) 28.Qd3 Bc7 29.Bb5 Re7 30.Rc1 Nd6 (30...Nd5 31.Ba6 Rb8 32.Rb8 Qb8 33.Ne5+–) 31.Ba6 (31.Ne5 Nb5 32.Nc6 Bh2 33.Kh1 Rc6 34.Rc6 Nd4 35.Bd4 Bf4=) 31...Rb8 32.Rbc3 (better 32.Ne5 Rb3 33.Qb3+–) 32...Bb6? (better 32...Nd5 33.Ne5 Nc3 34.Rc3 Rb6+–) 33.Ne5+– Nb7 (33...Nd5 34.Nc6 Qc7 35.Ne7 Qe7+–) 34.Nc6 Qd6 35.Ne7 (better 35.Nb8 Nd8 36.Rc8 Re8+–) 35...Qe7 36.Bf4 Ra8 37.Rc8 (37.Bc7!? Nc5 38.Rc5 Bc5 39.Rc5 Qe1 40.Qf1 Qb4+–) 37...Rc8 38.Rc8 (38.Rc8 Nd8 39.Qg3 Qe1 40.Kh2+–) 1–0. BeepBeepImAJeep (2730) – Tijdverspilling (2455), lichess.org, 2016.

3.d4 Qc7

4.Bb2 ed4 5.Bd4 Nc6 +=.

4.c3 Nf6 5.e4 ed4 +=.

4.Nc3 Qa5 5.Qd2 ed4 +=.

4.e3 d6 5.cd6 Bd6 +=.

4.Be3 d6 5.Nf3 Nd7 +=.

3.d4 ed4

4.Ba3 Bc5 5.Bc5 Qa5 6.c3 dc3?? (better 6...Qc5 7.Qd4 Qg5+=) 7.Qd6+– c2 8.Nd2 (8.Nd2 Kd8 9.Rc1 Qa2 10.Qf8 Kc7 11.Bd6 Kc6 12.Ngf3+–) 1–0. Ritter – Tuchtenhagen, corr SOK–88–22, 1988.

4.Ba3 Nc6=+ 5.Nf3 Qa5 6.Qd2 Qa4 (6...Qd2 7.Nbd2 b6 8.Ne4=) 7.c3 dc3 8.Qc3 Be7 9.Nbd2 (9.Bb2 Nf6 10.Nbd2 d6=+) 9...Bf6= 10.Qe3 Nge7 11.Rb1 0–0 12.Qb3 (12.Bb2 Bb2 13.Rb2 Re8=) 12...Qb3 13.ab3 Nd5 (13...Bc3 14.Bb2 Bb4 15.Rc1=) 14.e3 (14.Ne4 Bd8+=) 14...Re8 (14...Nc3 15.Ra1=) 15.Rc1 (15.Bb2 Nc3 16.Bc3 Bc3=) 15...a5 (15...Nf4 16.Rd1=) 16.Bb5 Nc3 17.Bc4 Na2 (17...a4 18.ba4 Ra4 19.Bb2+/–) 18.Rb1 (18.Rd1 Nc3 19.Ra1 a4+=) 18...Nc3 19.Rc1 Na2 20.Rb1 d6 21.Bb2 dc5= 22.Bf6 gf6 23.Ra1 Nab4 24.0–0 b6 25.Bb5 Re6 26.Rad1 Bb7=+ 27.Nh4 Ne5 28.Nf5 Na2 29.Nh6 Kg7–/+ 30.Nf5 Kf8 31.Bc4 Nc3 32.Be6 fe6 33.Nd6 Nd1 34.Rd1 Bc6 35.N2c4 b5 36.Nb6 Rd8 37.Nbc8 Nf7 38.Na7 Be8 39.Nac8–/+ Nd6 (40.Nd6 Ke7–+) 0–1. Zylla,Johannes – Scheiba,M, corr, 1995.

4.Ba3 Nc6!? 5.Nf3 Be7 +=.

4.Bb2 Qa5 5.c3 =+.

4.Bb2 Bc5 5.Bd4= Nf6 (5...Bd4 6.Qd4 Nf6 7.Qd6=) 6.Bc5 Qa5 7.Nd2 Qc5 8.e3 0–0 9.Bc4 (9.Ngf3 d5=) 9...d5=+ 10.Bb3 (10.Bd3 d4 11.ed4 Re8 12.Ne2 Qd4=) 10...Nc6 11.Ngf3 d4 (12.ed4 Nd4 13.Nd4 Qd4=+). Vokal,M – Koehler,J (2145), OCC–2002–03, 2002.

4.Qd4 Na6 5.Nf3 Nc5 6.e4 Ne6 7.Qd3 Nf6 8.e5 Nh5 9.Be3 Nhf4 10.Bf4 Nf4 11.Qe4 Ng6 12.Bc4 Qa5 13.Nbd2 Bb4 14.Rd1 0–0 15.0–0 d6 16.c3 Bc5 17.Ng5 Qc7 18.Ndf3 Bd7 19.Nf7 Bc6 20.ed6 Be4 21.dc7 Bf3 22.Ne5 Kh8 23.Nf3 Bb6 24.Ng5 Ne5 25.Bd5 Bc7 26.Ne6 Rf7 27.Bb7 Re8 28.Bd5 Bb6 29.c4 Rfe7 30.c5 1–0. Haertig,Manfred – Wlokka,Clemens, CM02KT3#04 (year?).

4.Qd4!? d6 5.cd6 +=.

4.Nf3 Qa5 5.Qd2 Qd2 =.

4.Qd4 Qa5

5.Nc3 Qc5 6.Qc5 Bc5 7.Nd5 +=.

5.Bd2 Qc5 6.Qc5 Bc5 7.Bc3 f6 8.e4 Nc6 9.Nd2 Nge7 10.Nb3 Bb4 11.Bb4 Nb4 12.Nd4 d5 13.Rb1 (13.Bb5 Kf7 14.c3 Nbc6 15.ed5 Nd4 16.cd4 Nd5=) 13...Nbc6 (13...Na2 14.Nb5 Kd7 15.Rb2+=) 14.Nc6= bc6 15.ed5 Nd5 16.Bd3 0–0 17.Ne2 Bg4 18.0–0 Be2 19.Be2 Nc3 20.Bc4 Nd5 21.Rb7 Rfd8 22.Re1+= Kf8 23.Bd5 Rd5 24.h3 Re8 25.Re8 Ke8 26.Rg7 Ra5 27.Rh7 Ra2 28.Rc7 a5 29.Rc6+– a4 30.Rf6 Rc2 31.Ra6 Ra2 32.g4 a3 33.g5 Ra1 34.Kg2 a2 35.h4 Kf7 36.h5 Rb1 37.Ra2 Rb5 38.f4 Rb3 1–0. Fournier,Frederic (1755) – ImpactedQTip (1690), rated blitz game (2/12), 2002.

5.Nd2 Na6 6.Qe3+= Be7 7.Bb2 Kf8 8.Ngf3 Nf6 9.Nd4 Bc5 10.Qf4 Bb4 11.N4b3+= Qc7 12.Qc7 Nc7 13.a3 Be7 14.e3 b6 15.Bd3 Bb7 16.0–0 Re8 17.Rfd1 Ng4 18.a4 Bh4 19.g3 Bf6 20.Bf6 Nf6 21.Nd4 h5 22.a5 h4 23.ab6+/– hg3 24.fg3 ab6 25.Ra7 Rb8 26.Rb1 Na8 27.Nc4 Bd5 28.Nd6 g6 29.Rf1 Ke7 30.Nf7! Rhe8 31.Ne5 Kd6 32.Ng6 Ng4 33.Nf5 Kc5 34.Rd7 (34...b5 35.Nge7+–) 1–0. Benassi,Aspasio (2180) – Kolbeinsson,Andres, EM/M/156 ICCF Email, 2001.

5.Nd2 Bc5 6.Qg7 Bd4 7.Qd4 f6 8.e4 Nc6 9.Qd6 Nb4 10.Rb1 Nc2 11.Kd1 Qa4 12.Rb3 Nd4 (12...Qd4 13.Qg3 Ne7 14.Bb2+–) 13.Ba3 Ne6 14.Bb5 Qa5 (14...Qd4 15.Qe6 Kd8+–) 15.Qe6 Kd8 16.Qd6 (16...b6 17.Qf8 Kc7 18.Bd6 Kb7 19.Qd8 Qb5 20.Qc7 Ka6 21.Rb5 f5 22.Rb3 fe4 23.Ra3 Kb5 24.Qc4) 1–0. freddy007 (2255) – rookie2 (1755), ChessWorld.net, 2003.

5.Nd2 Qc5

6.Bb2 Qd4 7.Bd4 =.

6.Qc5 Bc5 7.Bb2 f6 8.Rd1 d5 9.e3 =.

6.Qc5 Bc5 7.Bb2 f6 8.Rd1 Nh6 9.e3 (9.Ne4 Bb4 10.c3 Be7+=) 9...Nc6 10.Ne4 Bb4 11.c3 Be7 12.Ne2 0–0 13.Nf4 f5 14.Nd6 Ne5 15.c4 (15.Nc8?! Rfc8 16.Bb5 g5+/–) 15...Bd6 16.Rd6 Nhf7 17.Rd2 d6 18.Be2 Re8 19.Nd5 Rb8 20.Nc7 Re7 21.Nb5 f4 22.e4 (22.Nd6 Ng6+/–) 22...b6 (22...Nc6 23.Bd3+=) 23.f3 Ba6 24.Kf2 (24.Nd6 Nd6 25.Be5 Re5 26.Rd6 Kf7+/–) 24...Rc8+= 25.Rc1 Kf8 26.Ba3 Bb5 27.cb5 Rc1 28.Bc1 Rc7 29.Bb2 h6 30.g3 fg3 31.hg3 (31...Ke7 32.Ke3+/–) 1–0. Tihomir Glowatzky – Darlanio, ChessWorld.net, 2004.

6.Qc5 Bc5 7.Bb2 f6 8.Ne4 Bb4 9.c3 Be7 10.0–0–0 b6 11.e3 Nh6 12.Nd6 Bd6 13.Rd6 Bb7 14.Nf3 Ng4+= 15.Rd2 0–0 16.h3 Nh6 17.Bc4 Kh8 18.Rhd1 Rc8 19.Bb3 a5 20.Rd6 Bc6 21.Bd5 Bd5 22.R6d5 Nf7 23.Rb5 Ra6 24.Kc2 Rc5 25.a4 Rc4 26.Kb3 Rc7 27.Nd2 Nd6 28.Rd5 Nc8 29.Ba3 Raa7 30.Ne4 Rc6 31.c4 Rb7 32.Nc3 Re6 33.e4 Re8 34.f3 Rd8 35.Nb5+– Na6 36.f4 Nb8 37.e5 fe5 38.fe5 Re8 39.e6 Re6+/– 40.Rf1 h6? 41.Rf8+– Kh7 42.Rc8 Re3 43.Nc3 Nc6 44.Bd6 (44...Re6 45.Rf8+–) 1–0. Luzuriaga,Norberto Horacio (1700) – Rushton,Darren, TT–01 TSC, 2001.

6.Qe4 Be7 7.Bb2 =.

6.Qe4 Be7 7.Ngf3 =.

4.Qd4 Nc6

5.Qc3 Qe7 6.Bb2+= Nf6 7.e3 (7.Nd2 Qc5 8.Qc5 Bc5 9.Bf6 gf6+=) 7...Ne4= Attacking the isolated pawn on c5 8.Qb3 (8.Qc4 Nc5 9.Nc3 Ne5+=) 8...Nc5 9.Qc3 Ne4 10.Qb3 (10.Qd3 d5+=) 10...d5 (10...Qh4!? 11.Nh3 d5–/+) 11.Nf3+= (11.Qd5?? Qb4 12.Nd2 Nd2–+ (12...Qb2?! 13.Qe4 Be7 14.Rb1 Qa2 15.Bc4=)) 11...Be6 12.Nc3? (12.Bd4 Rc8+=) 12...Nc5?? (better is 12...d4 13.Nd5 Qd7–+) 13.Qb5+= a6 14.Qe2 g6?? 15.Qd1?? Bg7 16.Bd3 0–0 17.0–0 b5 18.Ne2?? Bb2–+ 19.Rb1 Bg7 20.c4 dc4 21.Bc2 Rad8 22.Qc1 Rd7 23.Ng3 Ne5 24.Ne5 Be5 25.Rd1 Bg3 26.Rd7 Qd7 27.hg3 Rd8 28.Qd1 Qd1 29.Rd1 Rd1 30.Bd1 Bf5 31.Bc2 Bc2 0–1. Fournier,Frederic (1865) – SanLetal5 (1995), Active blind, 2011.

5.Qc3 Nf6 6.f3 (6.Nd2 d5=) 6...Nd5 7.Qc4 Qa5 8.Bd2 Qc5 9.Qe4 Qe7?? (better is 9...Be7!? 10.e3 0–0–/+) 10.Qe7?? (better is 10.Qd5 Qh4 11.g3+–) 10...Be7=+ (< 10...Ke7 11.e4 Ndb4 12.Na3+=) 11.e4 Nb6 12.c3 (12.Nc3 Bc5=) 12...0–0 (12...d5 13.Be3=+) 13.Bd3 (13.Be3!?=+) 13...d5–/+ 14.ed5 (14.Bf4 Bh4 15.g3 Bf6–/+) 14...Nd5 15.Ne2 Be6 16.0–0 (16.Be4 f5 17.Bd5 Bd5–/+) 16...Rad8 17.Be4 Nf6 (17...f5 18.Bc2–/+) 18.Ng3 (18.Bc6!? Bc5 19.Nd4 bc6 20.Be3–/+) 18...Ne4 19.Ne4 Bf5 (19...f5 20.Nf2–+) 20.Be3 Rd3 21.Bf2 Rfd8 22.h3 Be4 (22...b6 23.Re1–+) 23.fe4–/+ Ne5 (23...Bf6 24.a4–/+) 24.a4 (24.Ba7 Bg5=) 24...b6 (24...Nc6 25.a5–/+) 25.Na3 (25.a5!? Bc5 26.ab6 Bb6 27.Bb6 ab6 28.Ra6=+) 25...Ba3–/+ (25...Rc3?! 26.Nb5 Rc2 27.Na7=+) 26.Ra3 Nc4 27.Ra2 (27.Raa1 Nd2 28.Rfe1 Nb3–/+) 27...Nd2 (27...Rc3 28.a5–+) 28.Rd1? (better is 28.Re1 Rc3 29.a5–/+) 28...Nf3!!–+ (< 28...Ne4 29.Rd3 Rd3 30.a5 Nc3 31.Ra1–/+) 29.gf3 Rd1 30.Kg2 R1d2 31.Ra3 R8d3 (31...f5 32.ef5 R8d5 33.f4–+) 32.a5 (32.Kg3 f5 33.ef5 Rd5–/+) 32...b5 (better is 32...h5 33.ab6 ab6–+) 33.a6? (better is 33.Kg3!?–+) 33...Rc2 (better is 33...b4 34.Ra4 bc3 35.Kg3–+) 34.Rb3? (34.Kg3 Rcc3 35.Ra5 Rf3 36.Kg2–+) 34...Rcc3 (34...Rdd2 35.Rb5 Rf2 36.Kg3 Rg2 37.Kh4 g6–+) 35.Rb5–/+ h6 36.Rb7 (36.Rb8 Kh7 37.Rb7 Rc2–/+) 36...Rf3 (36...Rd2 37.Kg3 Rc6 38.Ba7 Ra6 39.Bc5–/+) 37.Ra7 Ra3 (37...Rf4 38.Bd4 Rc2 39.Kg3 Re4 40.Ra8 Kh7 41.Rd8–/+) 38.Rb7 (better is 38.Bc5+=) 38...Rfb3 (38...Rh3? 39.a7+–) 39.Rb3 Rb3 40.a7 Ra3 41.e5 Kf8?? (better is 41...Ra2=+) 42.Bc5+– (42...Ke8 43.Ba3+–) 1–0. MasterofDisaster – Korchnov, Live Game Caissa's Web, 2004.

5.Qd1 Bc5 6.e3 Nge7 7.Nf3 0–0 8.Bd3 Ng6 9.0–0 d5 10.Nbd2 Bg4 11.Bb2 d4 (11...Nge5 12.h3 Bh5 13.Be2 Nf3 14.Nf3=) 12.e4 (12.Nb3!? b6 13.Be4+=) 12...Nce5 13.Be2 (13.h3 Be6=) 13...Nf3 (13...Nf4 14.h3 Bh5 15.Rb1–/+) 14.Nf3 Increasing the pressure on the isolated pawn on d4 (14.Bf3 Bf3 15.Nf3 Re8 16.Bd4 Bd4 17.Qd4 Qd4 18.Nd4 Re4=) 14...Rc8 15.h3 Be6 (15...Bf3!? 16.Bf3 Ne5=+) 16.Nd4 Qe7 17.Ne6 fe6 18.Bd3 (18.Rb1 Rcd8 19.Qe1 Rf4=) 18...Rcd8 (18...Rf2 19.Kh2=+) 19.Qg4 (better 19.Qd2=) 19...Ne5?? (better 19...Rf4!? 20.Qh5 Rdf8=) 20.Qg3 (better 20.Be5 Bf2 21.Kh1+–) 20...Nd3+– 21.cd3 e5? (21...Bd6 22.e5 Bc5 23.Rad1+=) 22.Kh2 (better 22.Be5!? Bd4 23.Bd4 Rd4 24.Rac1+–) 22...Bd6 23.f3 Qf6 24.Rad1 (24.Rad1 Rc8 25.Rc1+–) 1–0. BeepBeepImAJeep (2610) – Matkarbur (1685), lichess.org, 2018.

5.Qd1 Nf6 6.Bd2 (6.Ba3 Ne4 7.Nd2 Qa5+=) 6...Qe7 (6...Bc5 7.e3+=) 7.Nc3 (7.e3=) 7...g6 (7...Qc5!? 8.e4 d5 9.ed5 Nd5 10.Nd5 Qd5+=) 8.Rb1 (8.Nb5 Qd8 9.Nd6 Bd6 10.cd6 Ne4+=) 8...Bg7 9.e3 0–0 10.Nf3 Re8 11.Bd3 a6 (11...Qc5 12.Nb5 Rb8 13.0–0=) 12.0–0 Bf8 (12...Qc5 13.Na4 Qh5 14.Nb6+=) 13.Re1 (13.Na4 Rb8+/–) 13...Qc5 14.Ne4?? (better is 14.Na4 Qa3 15.Nb6+/–) 14...Ne4–+ (14...Re4?! 15.Be4 Ne4 16.Rb3–+) 15.Be4 Re4 16.Bb4 Nb4 17.a3 Nc2 18.Re2 Ne3! 19.Re3 Qe3! 20.fe3 Re3 21.Kh1? Re8 22.a4 Bg7 23.Nd4 Rb8 24.Nf3 b5 25.ab5 ab5 26.Qb3? Bb7 27.h3? Red8?? 28.Qb5–/+ Bf3 29.Qb8 Rc8?? 30.Qc8+– Bf8 31.gf3 (31.gf3 h6 32.Rb8 Kg7 33.Qf8 Kf6 34.Rb6 Ke5 35.Qd6 Kf5 36.Rb5) 1–0. Fournier,Frederic (1985) – defaster (2080), Active Blind, 2007.

5.Qe3 Qe7 6.Na3 Nf6 7.Nb5 Nd5 8.Nd6 Kd8 9.Qf3 Ne5?? 10.Qd5 (10...f6 11.f4+–) 1–0. b4_player (2145) – joepheldoorn (1740), GameColony.com, 2004.

5.Qe3 Qe7 6.Na3 Nf6 7.Nb5 Nd5? 8.Nd6+– Kd8 9.Qf3 Nf6 10.Nh3 h6 11.Bb2 b6 12.e4 (better is 12.Qb3 Na5 13.Qf7+–) 12...Nd5?? (better is 12...bc5 13.Rd1 Nd4 14.Bd4 Qd6+/–) 13.Nf7+– Qf7 (13...Ke8 14.Nh8 Nf6+–) 14.Qf7 (14.Qf7 Nc7 15.Bf6 Ne7 16.cb6 ab6 17.Bg7 Bg7 18.Qg7+–; 14.ed5?! Qf3 15.gf3 Nb4+/–) 1–0. Degterev,Pavel (1770) – Kaupat,Thomas (1670), IECG, 2006.

5.Qe3 Qe7 6.Nc3 Nb4 7.Qd2 (7.Kd1 Kd8+=) 7...Nf6= 8.a3 Nc6 9.Nf3 Qc5 10.e3 (10.e4 Bd6 11.Bb2 0–0+=) 10...d5= 11.Bd3 Bg4 12.0–0 (12.Nd4 Nd4 13.ed4 Qe7 14.Ne2 Qc7=) 12...Bf3=+ 13.gf3 Bd6 14.Rb1 1–0. DEFFM – GuestCHBG, freechess.org, 2017.

5.Qe3 Qe7 6.Nc3 Nf6 7.Nb5 Kd8 8.Nd6 Qe3 9.Be3 Nb4 10.Kd1 Bd6 11.cd6 Ne4 12.f3 Nd5 13.Bd4 Nec3 14.Ke1 f6 15.e4 Re8 16.Kf2 Nb5 17.Bb5 Nb4 18.c3 Nc6 19.Be3 Ne5 20.Ne2 b6 21.Rab1 Bb7 22.Rb4 Re6 23.Rd1 Rc8 24.Nf4 Re8 25.Ra4 Rc3 26.Ra7 Rc2 27.Kg3 Kc8 28.Nd5 Kb8 29.Bb6 Bd5 30.Rd5 Nc6 31.Rd7 Ne5 32.Rg7 Rec8 33.Ba7 Ka8 34.Bc6 R2c6 1–0. wesolyPolak – Budapester, GameColony.com, 2002.

5.Qe3 Qe7 6.Qe7 Be7 7.Bb2 =.

5.Qe3 Nge7 6.g3 +=.

5.Qe4 Qe7 6.Qe7 (6.Nc3 Nf6 7.Qe7 Be7+=) 6...Be7= 7.Bb2 Nf6 8.e3 Nb4 (8...Bc5 9.Bf6 gf6 10.Nc3+=) 9.Bd3 0–0 (9...Bc5 10.Bf6 gf6 11.Nf3+=) 10.Nd2 Nfd5 (10...b6 11.cb6 ab6 12.a3 Nd3 13.cd3+/–) 11.Nb3 (11.Ne4 b6 12.Bd4 f5+=) 11...a5 (11...d6 12.cd6 Bd6 13.a3 Nd3 14.cd3+/–) 12.a4 (12.Bd4 d6+/–) 12...d6+= 13.cd6 Bd6 14.Be4 (14.Nf3 Re8+=) 14...Re8 15.Nd2 (15.Bd5 Nd5 16.0–0–0 Be6+/–) 15...Re4 (15...f5 16.Bd5 Nd5 17.Ngf3+=) 16.Ne4 Nc2 17.Ke2 Na1= 18.Nd6 Nb3 19.Nf3 Bd7 20.Rd1 Nb6 21.Nb7 Na4 22.Rd7+= Nb2 23.Nd6 a4 24.Nb5 Nc4 25.Nc7 Rf8 26.Nd4 Nc1 27.Kd1 Nd3 28.Ke2 h6 29.Nc6 Nde5 30.Ne5 Ne5 31.Rd2 Rb8 32.Ra2 Rb3 33.Kd2 Ng4 34.Ra4 Nf2 35.Ke2 Rb2 36.Kf3 Nd3 37.Ra1 Ne5 38.Ke4 f6 39.Ra8 Kh7 40.Nd5 Rg2 41.Ra7 Rg4 42.Kf5 Rg5 43.Ke4 Nc6 44.Rd7=+ Kg8 45.h3 Kf8 46.Nf4 Re5 47.Kd3 Re8 48.Rc7 Ne5 49.Ke2 g5 50.Nd3 Nd3 51.Kd3 Re7 52.Rc8 Kg7 53.e4 h5 54.Rc5 Kg6 55.Ke3 Ra7 56.Rc3 Ra2 57.Kd4 h4 (58.Rf3 Rg2–/+; 57...g4 58.hg4 hg4 59.Ke3–/+) 0–1. Schulz,Hans_Juergen – Poschmann,Hans, TT–04.20 TSC, 2002.

5.Qe4 Be7 6.Bb2 Qa5 7.Bc3 Nf6 8.Qe7 (< 8.Ba5 Ne4 9.Bc3 Bc5=+) 8...Ke7 9.Ba5 Na5 10.Nc3 a6 (10...Rd8 11.e4+/–) 11.e3 (11.e4 Re8+/–) 11...Re8 (11...Rd8 12.Rd1+/–) 12.Bd3 Rb8 (12...d6 13.cd6 Kd6 14.Nf3+/–) 13.Nf3 b6 14.Rb1 b5 15.Nd4 (15.a4 b4+/–) 15...Bb7+= 16.0–0 Kf8 17.a4 ba4 18.Na4 Nd5 (18...Ne4!? 19.Rfd1 h6+/–) 19.Nb6+– (19.Bh7?! g6 20.Nb6 Nf6=) 19...Nb6 (19...Nf6 20.Ra1 Nc6 21.Ba6 Ba6 22.Ra6 Nd4 23.ed4+–) 20.Rb6 Rec8 (better is 20...Bd5+–) 21.Rfb1 (21.Ba6?! Ba6 22.Ra6 Rc5+/–; 21.Bh7?! g6=) 21...Rc5 22.Ba6 (22.Ra6?! g6+–) 22...Rc7 (22...Ba6 23.Rb8 Ke7+–) 23.Nf5 (better is 23.R1b5+–) 23...Rc2 (23...Ra8 24.Bd3+– (24.Rb7 Nb7 25.Bd3 Nc5=+)) 24.h3 (24...Rc6 25.Nd6 (25.Bb7?! Rb6 26.Rb6 Rb7+=) 25...Ba6 26.Rb8 Ke7 27.Nf5 Kf6 28.Nd4+–; 24.Rb7 Nb7 25.Kf1 g6–/+; 24.Bb7?! Rb7 25.Rb7 Nb7+=) 1–0. Moller,HJ – Werner,S, corr, 1992.

5.Qe4 Be7 6.Bb2 Nf6 7.Bf6 gf6 8.Nc3 d5 (8...Qa5 9.Kd2+=) 9.Nd5 Qa5 10.c3 Be6 11.Rd1 Rd8 12.Nb4 (12.e3 Bd5 13.Rd5 Qc3 14.Ke2 Qb2 15.Kf3 Ne5 16.Kf4 Qf2 17.Nf3 0–0–/+) 12...Rd1 13.Kd1 Nb4 (13...Qc5?! 14.Nc6 bc6 15.e3=) 14.cb4 Qa2 15.e3?? (better 15.Nf3–/+) 15...Bb3–+ 16.Ke1 Qa1 17.Kd2 Qb2 18.Kd3 Bc2 (18...Bc2 19.Kc4 Qb3 20.Kd4 Qb4 21.Bc4 Qc5 22.Kc3 Be4 23.Nf3 Qb4 24.Kd4 f5 25.Rb1 Qc5 26.Kc3 Qa5 27.Rb4 Bb4 28.Kd4 Bc3) 0–1. may – idontcastle, net–chess.com, 2018.

5.Qe4 Nge7 6.Bd2 (6.Nf3 Qa5 7.Bd2 Qc5=) 6...d5= 7.Qa4 (7.cd6 Qd6 8.Nc3 Bf5=) 7...Bd7 (better 7...Nf5 8.Nc3 Bc5–/+) 8.g3? (8.Nf3 Nf5 9.Qb3 Bc5=+) 8...Ne5 (8...Nf5 9.Qa3 Nfd4 10.Qc3–+) 9.Qa5? (9.Qb3 N7c6 10.Nf3 Bc5 11.Ne5 Ne5=) 9...b6 (9...Qa5!? 10.Ba5 N7c6–+) 10.Qc3–/+ N7c6 11.cb6 (11.Nf3 Bc5 12.Ne5 d4–/+) 11...Qb6 12.Bg2 (12.Qb3 Nd4 13.Qb6 ab6–+) 12...Bb4 (12...Rb8 13.Qb3 (13.Bd5?? Qb1 14.Rb1 Rb1 15.Bc1 Bb4–+) 13...Qc7 14.Qe3–+) 13.Qb3–/+ Bd2 (better 13...0–0!? 14.c3 Rfe8–/+) 14.Nd2= Qb3 (14...Nd4 15.Qb6 ab6 16.Bd5 Nc2 17.Kd1=) 15.Nb3 (15.ab3 Nb4 16.Kd1 Rc8 17.Ra7 Ng4+=) 15...Ne7 (15...Nb4 16.Nd4 Rc8 17.Rb1 Nc2 18.Nc2 Rc2 19.f4+=) 16.Nf3+– Nf3 (16...Nc4 17.0–0+–) 17.Bf3 Rc8 (17...Be6 18.Nd4+–) 18.Kd2 0–0 19.Nd4 Rc7 (19...Rc5 20.e3+–) 20.a4 (20.Rab1 Nf5 21.c3 Be6+–) 20...Rfc8 (20...g5 21.Rhb1+–) 21.Ra2 (21.Rhc1 Rd8+–) 21...g6 (21...Rb8 22.e3+–) 22.Nb5 (22.Rb1 Kg7+–) 22...Bb5 (22...Rc5 23.Rb1 (23.Na7? Ra8–+) 23...a6 24.Nd6+–) 23.ab5 Rb8 (23...Nf5 24.Bg4+–) 24.Rb1 (24.Rha1 Rb5 25.Ra7 Ra7 26.Ra7 Kf8+–) 24...Rd7 (24...Kg7 25.Kd3+–) 25.Ke1 (25.Ra6 Kg7+–) 25...Nc8 (25...Kg7 26.e3+–) 26.c3 (26.Rd1 Rb5 27.c4 Rb4 28.cd5 Nb6+–) 26...f5 (26...Rc7 27.Kd2+–) 27.e3 (27.Rd1 Rb5 28.c4 Rb4+–) 27...Nb6 28.Rba1 (28.Ke2 Rbb7+–) 28...Rbb7 29.Ke2 Nc4 30.Rb1 (30.Ra7 Ra7 31.Ra7 Ra7 32.Bd5 Kf8 33.Bc4 Rc7+–) 30...Kf7 31.h3 (31.Ra6 Kg7+–) 31...Ne5 (31...Ke6 32.Ra6 Rb6 33.Rba1+=) 32.h4 (32.Bg2 Ke6+–) 32...Nf3 33.Kf3 Rdc7 34.Ra3 (34.Rb3 Rb6+–) 34...Rc5 (34...Ke6 35.Ra6 Ke7 36.Rb3+–) 35.Rab3 (35.Kf4 h6+–) 35...Rc4 (35...Ke6 36.Ke2+–) 36.Rd1 Ke6 37.Rd4 (37.Ra1 Ke5+–) 37...Rd4 (37...a6!?=) 38.ed4 (38.cd4 a6 39.b6 h6+–) 38...h6 (38...a6 39.b6+–) 39.Kf4 (39.Ra3 Rb5 40.Ra7 Rb3 41.Ra6 Kf7+–) 39...Kf6+= 40.Ra3 g5 (40...Rb5 41.Ra7 g5 42.Kf3+=) 41.Kf3 gh4 (41...Rb5!? 42.Ra7 Rb3+=) 42.gh4+– Kg6 43.Ra6 (better 43.Kf4+–) 43...Rb6? (better 43...Kh5+–) 44.Ra7+– Rb5 45.Kf4 (45.Ra6 Kh5 46.Kf4 Rb2+–) 45...Rb2 (45...Rb3 46.Ra6 Kh5 47.Rc6+–) 46.f3 Rf2? (better 46...Rh2 47.Ra6 Kg7 48.Kf5 Rh4 49.Ra7 Kf8+–) 47.Rd7 Rc2 (47...Rh2 48.Rd6 Kg7 49.Kg3+–) 48.Rd5 Rc3 (48...Rh2 49.Rd6 Kg7 50.Kg3+–) 49.Rd6 (49.Rf5 h5+–) 49...Kg7? (49...Kh5 50.Rf6+–) 50.d5 (50.h5 Rb3+–) 50...Rd3?? (50...Rc4 51.Kf5 Rh4 52.Rd7 Kf8+–) 51.Kf5 (better 51.h5+–) 51...Rf3+– 52.Kg4 Rd3 (52...Rf1 53.Re6+–) 53.Kh5 (53.h5 Rd1 54.Rg6 Kh7+–) 53...Rd4 54.Rd7 (better 54.Rg6 Kf7 55.Rg4 Rd5 56.Kh6+–) 54...Kf6= 55.d6 (55.Rd8 Kf7=) 55...Ke6 (55...Ke5 56.Rd8 Rb4 57.Rh8 Kd6 58.Re8=) 56.Rd8 (56.Rh7 Kd6 57.Rh6 Ke7=) 56...Rf4 57.Rh8 Kd6 58.Rh6 Ke7 59.Rg6 (59.Kg5 Rf8=) 59...Kf7 60.Rg4 (60.Rg5 Rb4=) 60...Rg4 61.Kg4 ½–½. Colarina,Floram – Trigance,Emile, FICGS, 2010.

5.Qe3 Be7

6.Bb2 f6 7.Nf3 d6 8.cd6 Qd6 9.Qd3 Be6 10.Qd6 Bd6 11.e4 Nge7 12.Nbd2 0–0–0 13.Bc4 Bc4 14.Nc4 Bb4 15.c3 Bc5 16.0–0 Rd7 17.a4 Rhd8 18.Rfb1 Ng6 19.Ba3 Ba3 20.Na3 Re7 21.Re1 Nf4 22.Re3 Nd3 23.Nb5 Nde5 24.Nbd4 Nf3 25.Nf3 g5 26.Rc1 Kb8 27.Rb1 g4 28.Ne1 Ne5 29.Nc2 Nc4 30.Nb4 Rd6 31.Nd5 Rd5 32.ed5 Ne3 33.fe3 Re3 34.Rb4 h5 35.c4 Kc7 36.Kf2 Rc3 =. COMP, 4 Min/Zug 1989.

6.Bb2 Nf6 7.Nf3 0–0 8.Qd2 Bc5=+ 9.e3 Bb4 10.c3 Ba5 11.Bd3 Re8 12.0–0 Ne5 (12...d5!?=+) 13.Ne5= Re5 14.Qc2 Rg5 15.c4 Bb6 (15...d5 16.Rd1=) 16.f4 (better 16.Bf6!? Qf6 17.Bh7 Kh8 18.Be4+–) 16...Rh5 17.Qe2 Rh6 18.Nd2 d5 19.cd5 (19.Bf6 Rf6 20.cd5 Qd5=) 19...Nd5 Attacking the backward pawn on e3 (19...Bg4 20.Bf6 Be2 21.Bd8 Be3 22.Kh1 Bf1 23.Nf1=+) 20.Nc4= Bc5 21.Rad1 b5 22.Be4 Bb7 (22...bc4? 23.Rd5 Bd6 24.Rg5+–) 23.Na5 Be3 24.Qe3 Ne3 Exploits the pin 25.Rd8 Rd8 26.Nb7 Nf1 (better 26...Rd2!? 27.Rc1 f5 28.Rc8 Kf7+=) 27.Nd8+– Nd2 (27...Nh2!? 28.Be5 Ng4+–) 28.Bd5+– Rd6 29.Bf7 Kf8? (better 29...Kh8 30.Ne6 Nf3 31.Kf2 Rd2 32.Kf3 Rb2+–) 30.Ba3 Nc4 (30...Ne4 31.Bd5 Ke8 32.Bd6 (32.Be4?! Rd1 33.Kf2 Rd2 34.Kf3 Ra2+–) 32...Nd6 33.Ne6+–) 31.Bd6 (better 31.Bc4 bc4 32.Nb7+–) 31...Nd6 32.Bb3 Ke7 (32...Ke8 33.Ne6 g6 34.g4+–) 33.Ne6 (33.Nc6!? Kd7 34.Na7 Kc7+–) 33...g6 34.Nd4 Nc4 (34...a6+–) 35.Nc6 (35.Nc6 Kd6 36.Na7+–; better 35.Nb5!? Na5 36.Na7 Kf6+–) 1–0. BeepBeepImAJeep (2540) – Lutikov (1795), lichess.org, 2015.

6.Bb2+/– Nh6

7.Nd2 0–0 8.Ne4 Qa5 9.Qc3 Qc3 10.Bc3 b6 11.Nh3 bc5= 12.Nf4 f5 13.Ng3 Nb4 14.Bb4 cb4 15.e3 Rb8 16.Bc4 Kh8 17.Rd1 g5 18.Nd5 Bd6 19.Ne2 Be5 20.Bb3 a5 21.c3 bc3 22.Nec3 Re8 23.Rd2 Ba6 24.Ne2 ½–½. Woelfelschneider,Peter – Poschmann,Hans, TT–04 TSC, 2002.

7.Nd2 0–0 8.Ne4 Nf5 9.Qc3 Re8 10.e3 d5 11.cd6 Bf8 12.Bd3 Nd6 13.Nd6 Qd6 14.Ne2 Nb4 15.0–0 Nd3 16.cd3 Bg4 17.Nf4 Rac8 18.Qb3 Qd7 19.h3 Bf5 20.Ba3 Ba3 21.Qa3 (21...b5 22.Rfc1+=) +=. freddy007 – Klaus Behrmann, ChessWorld.net, 2004.

7.Nd2 0–0 8.Ne4 Nf5 9.Qc3 Re8 10.e3 d6 11.cd6 (11...Bf8 12.Bd3+=) +=. Tihomir Glowatzky (2005) – Klaus Behrmann, ChessWorld.net, 2003.

7.Nd2 0–0 8.Ne4 Nf5 9.Qf3 =.

7.Bg7? Nf5 8.Qc3 Ng7 9.Nd2 –+.

7.Bg7? Nf5 8.Bh8 Ne3 9.fe3 Bc5 –+.

4.Qd4 d5

5.cd6 Qd6 6.Qe4 Qe7 7.Qe7 Ne7 +=.

5.e4 Nf6= 6.ed5 Qd5 7.Qd5 Nd5 8.Bb2 Bc5 9.Bg7 Rg8 10.Bb2 Nc6 11.Nc3 Nc3 12.Bc3 Bf5 13.0–0–0 (13.Rc1 0–0–0=) 13...Bf2=+ 14.Nf3 Rd8 15.Rd8 Kd8 16.g3 Be4 17.Be2 Re8 18.Rf1 Bc5 19.Bc4 f5 20.Nh4 Ne7 21.Be6 Ng6 22.Bf5 Nh4 23.gh4 (23.Bf6 Kc7 24.Bh4 Bf5 25.Rf5 Be3 26.Kd1 h6+/–) 23...Bf5 24.Rf5 b6 25.Rh5 Be3 26.Bd2 Bd2 27.Kd2 Re7 28.c4 Kd7 29.Rh6 Kc8 30.Kd3 Rc7 (30...Rd7 31.Ke4=) 31.a4 (31.Rd6 Rd7 32.Rd5 h6+=) 31...Kb7 (31...Rd7 32.Ke4=) 32.h5 Ka6 33.c5 Rc5 (33...Ka5 34.cb6 Rd7 35.Ke4 ab6 36.Re6+=) ½–½. Tihomir Glowatzky – freddy007, ChessWorld.net, 2004.

5.e4 Nf6 6.e5 Nc6 7.Qa4 Bc5 8.Bg5? (8.Bb5 Bd7 9.ef6 Qf6 10.Nf3 Qa1 11.0–0–+) 8...Qc7–+ 9.f4? (Better is 9.Nf3 Bf2! 10.Kf2 Ne4 11.Ke1 Ng5 12.Nbd2–+) 9...Ne4 10.Bh4 (10.Ne2 Ng5 11.Nbc3–+) 10...Qb6 11.Bb5 Bg1 12.Bc6 (12.h3 Bd4 13.Bc6 bc6–+ (13...Qc6?! 14.Qd4 Qc2 15.Nd2–/+)) 12...bc6 (12...Qc6?! 13.Qc6 bc6 14.Rg1=+) 13.Qa3 (13.e6–+) 13...Bf2 14.Bf2 Qf2 15.Kd1 Qd4 (16.Kc1 Rb8–+) 0–1. ricar67 (1710) – Tihomir Glowatzky (1920), ChessWorld.net, 2003.

5.cd6 Nc6

6.Qb2 Nf6

7.Nf3 Bd6 8.Bg5 Qa5 9.Bd2 Bb4 10.Bb4+= Nb4 11.c3 Nbd5 12.Nd4 (12.e3 0–0+=) 12...0–0 13.e3 Rd8 14.Bc4 Bg4 (14...Ne4 15.Qb5 Qb5 16.Nb5+=) 15.0–0 (15.Qb7!? Rab8 16.Nc6+/–) 15...Rac8+= 16.Bd3 Qc7 17.h3 Be6 18.a4 (18.c4 Nb6 19.Nd2 Nc4 20.Bc4 Bc4+–) 18...Nc3= 19.Qc3 Qc3 20.Nc3 Rc3 21.Rfd1 Rcc8 22.a5 Bd5 23.a6 b6 ½–½. freddy007 – Tihomir Glowatzky, ChessWorld.net, 2004.

7.Nf3 Bd6 8.Bg5 Qa5 9.Bd2 Qc5 10.Bc3 Ne4 11.e3 Nc3 12.Qc3 Qc3 13.Nc3 =.

7.Nf3 Bd6 8.Bg5 Qa5 9.Bd2 Qc5+= 10.e3 Bg4 11.Bc3 Bf3 12.gf3 Be5 13.Be5 Ne5 14.Bb5 Ke7 15.Nd2 Rhd8 16.f4 Nc6 17.Bd3 Kf8 18.Rb1 Rd7 19.Rg1 Re8 20.Kf1 h6 21.Rg3 a6 22.a4 Rc7 23.Kg1 Qd5 24.Nb3 Rd8 25.Qc3 Qd6 26.Nd2 Ne7 27.Nc4 Qc5 28.Qa5 Qa5 29.Na5 Rb8 30.Rb4 Ned5 (31.Rd4 Nc3+=). Hasek,Frantisek (1765) – Glowatzky,Tihomir (1700), TT–15 ETC, 2005.

7.Nf3 Bd6 8.Bg5 Qa5 9.Nbd2 Ba3 10.Qb3 Ne4 =.

7.Bg5 Qa5 8.Bd2 Qd8 9.Bc3 Ne4 10.e3 (10.Bg7? fails to 10...Qa5 11.Bc3 Bg7–+) 10...Nc3 11.Qc3 (11.Nc3 Bd6 12.Rd1 Qf6+=) 11...Bd6 12.Qb2 (12.Qg7?? the pawn must be left alone, otherwise White will be punished 12...Be5 13.Qh6 Ba1–+) 12...0–0 13.Nf3 Bf5 14.Nbd2 (14.Qb7 Qf6 15.c3 Bb4–+) 14...Qc7 15.Bd3 Bd3 16.cd3 White creates threats along the open c–file 16...Nb4 White cannot castle queen side 17.Ke2 Rfd8 18.Rhc1 Qa5 19.Qb3 Be7 20.Nc4 Qf5 d3 draws heavy fire 21.d4 Rac8 22.a3 b5 (22...Nd5!?–/+) 23.Nce5 Nc2 24.Qb1 Bf6? 25.Ra2 Be5 26.Ne5 Nd4 27.ed4 Qf4 28.Rc8 Rc8 29.Rd2 Qh2 30.Qf5 Rf8 31.Rc2 g6 32.Qh3 Qg1 33.Rc8 Qb1 34.Rf8 Kf8 35.Qe3 Qa2 36.Kf3 f6 37.Nd7 Kf7 38.Nc5 a5 39.Qb3 Qb3 40.Nb3 a4 41.Nc5 f5 42.Na6 g5 43.Ke3 h5 44.f4 g4 45.g3 Kf8 46.Kd3 Kf7 47.d5 Ke7 48.Nc5 Kd6 49.Kd4 h4? 50.gh4 g3? 51.Nb7 Kc7= 52.Ke3 Kb7 53.h5 b4 54.h6 b3 55.h7 b2 56.h8Q b1Q 57.Qg7 Ka6 =. lucya (2145) – Christiane (2120), GameColony.com, 2002.

7.Bg5 Bd6 8.Nc3 Be5=+ 9.Nf3 Qb6 10.Qa3 Nb4 11.Rc1 Bc3 (12.Qc3 Qf2 13.Kf2 Ne4 14.Kg1 Nc3=+) =+. Klaus Behrmann – Tihomir Glowatzky, ChessWorld.net, 2004.

7.Bg5 Bd6 8.Nf3 Qa5 9.Bd2 Qc5 10.e3 Bg4 11.Be2 (11.Qb7 Rb8 12.Qa6 Bf3 13.gf3 0–0+=) 11...Rc8 12.Bc3 Nb4 13.0–0 Nbd5 14.Bf6 Nf6 15.Qb7 0–0 (15...Rb8 16.Qa6+/–) 16.c3+/– Rb8 17.Qa6 Ne4 18.Qa4 Rfe8 19.Qc2 (19.h3!? Bh5 20.Qd7+/–) 19...Qh5+= 20.h4 Rbd8 21.Rd1 Nf2 (21...Re7 22.Rd4 Nc5 23.Qd2+/–) 22.Rd6 (Better is 22.Kf2!? Bc5 23.Qa4 Be3 24.Kg3+–) 22...Rd6= 23.Kf2 Bf3 24.Bf3 Qh4 (25.Ke2 Qe7=) =. Tihomir Glowatzky – marekt, ChessWorld.net, 2004.

7.Bg5 Bd6 8.Bf6!? Qf6 9.Qf6 gf6 10.c3 +=.

4.Qd4 Nf6

5.Nd2 Nc6 6.Qc3 d5 7.cd6 Bd6 8.e3?? Be5–+ (9.Qb3 Ba1–+) 0–1. Woischke,Norbert – Myrberg,Johnny, TKM/Final/03, 2003.

5.Nd2 Nc6 6.Qc3 d5 7.cd6 Bd6 8.Ngf3 0–0 9.e3 Bb4 10.Qb3 Ne4 11.Bb5 Be6 12.Qd3 Qf6 13.Qe4 Bf5 14.Qf4 Bd6 15.Qg5 Qa1 16.0–0 Bc2 17.Bc6 Bd3?? (17...bc6 18.Ba3 Qf1 19.Nf1 Ba3=) 18.Re1+/– Rfc8 19.Ba3 Qa2 20.Bd6 Rc6 21.Qe7 Qd5 22.Be5 Re6 23.Qc7 f6 24.Bb2 a5 25.Qc3 Rc6 26.Qa3 Bg6 27.e4 Qd7 28.e5 Re6 29.Nb3 Ree8 30.Nc5 (30.ef6 Re1 31.Ne1 Re8–/+; < 30.Na5 Qd5 31.Bc3 b6=+) 30...Qd5 31.Na4 Ra6 32.ef6 (Better is 32.Nc3!? Qc4 33.ef6 Re1 34.Ne1+/–) 32...Re1= 33.Ne1 Re6 34.Qa1 b5 35.Nc3 Qb3 36.Nf3 gf6 (< 36...Rf6 37.Nd4 Qc4 38.Ncb5+/–) 37.Nd2 Qc2 38.Nf1 Rd6 39.Ne3 (39.Nb5?? Rd1 40.Nd4 Qd3 41.Qd1 Qd1–+) 39...Qb3 40.Qc1 a4 41.Ne2 Qe6 (41...b4!? 42.Qc8 Kg7 43.Qc7 Bf7=) 42.Nd4 Qd7 43.Qc5 Kf7 44.h3 (44.Nb5?? Rd1 45.Nf1 Rf1 46.Kf1 Qd1) 44...a3 45.Qa3 Rd4 46.Bd4 Qd4 47.Qb3 Ke7 48.Qb5 (48...Qa1 49.Qf1 Qf1 50.Kf1 Bd3 51.Ke1+/–) 1–0. Myrberg,Johnny – Hjortstam,Kurt, email 4AMM–F, 1998.

5.Qe3 Qe7 6.Qe7 Be7 =.

5.e4 Nc6 6.Qe3 Ng4 7.Qf3 Bc5 8.Bc4? (Better is 8.Nh3 Nge5 9.Qg3=+) 8...Bf2 9.Kf1 (Better is 9.Kd1 0–0 10.Nh3–+) 9...Nce5 10.Qf4 (10.Bf7 Kf8 11.Qf4 Nf7 12.Qg4–+) 10...Bg1 (10...Nc4?! 11.Qg4 Qf6 12.e5 Qe5 13.Kf2 Qa1 14.Qc4 Qb1 15.Nf3–+) 11.Kg1 Nc4 12.Qg4 (12.Nc3 Qb6 13.Kf1 Qd4–+) 12...Qb6 13.Kf1 Qf6 14.Qf4 (14.Qf3 Qa1 15.Qb3–+) 14...Qa1 15.Kf2 Qb1 16.Rf1 Qc2 17.Kg1 0–0 18.Rf2 Qd1 19.Rf1 Qd4 20.Rf2 d6 21.Qg3 f5 22.ef5 Rf5 23.Bh6 Qd1 24.Rf1 Qf1# 0–1. Seanypop (1705) – Frank Bendig (2005), ChessWorld.net, 2003.

5.Nf3 Qa5 6.Qd2 Qd2 7.Nbd2 (< 7.Kd2 Bc5 8.e3 Ng4=+; 7.Nfd2?! Bc5 8.Bb2 d5=) 7...Bc5 8.h3 Nc6 9.Bb2 d5 10.e3 Be7 11.Bd3 0–0 12.Nd4 Nd7 13.Ke2 Nc5 14.N2f3 Re8 15.Rhd1 Bd7 16.a4 Rac8 17.a5 Bf6 18.Rdb1 Ne5 19.Ra2 Nc4 20.Ke1 Nb2 21.Rab2 Be6 22.Kf1 Re7 23.Be2 h5 24.Nd2 h4 25.Ke1 Rcc7 ½–½. freddy007 – marekt, ChessWorld.net, 2003.

5.Nf3 Nc6 6.Qe3 Be7 7.Nbd2 0–0 8.Ba3 Qa5 9.Bb2 Bc5 10.Qb3 Ne4 11.e3 d5 12.c3 Qd8 13.Ba3 Ba3 14.Qa3 Qf6 15.Rc1 Bf5 16.Be2 a6 17.c4 dc4 18.Nc4 b5 19.Nd6 b4 20.Ne4 Be4 (20...ba3?? 21.Nf6 gf6 22.Rc6+–) 21.Qb3 Rac8 22.0–0 (22.Ba6? Nd4 23.Bc8 Nb3 24.ab3 Qb2–+) 22...Rfd8 23.Rfd1 a5 24.Nd2 Bd5 25.Qa4 h6 26.Nb3 Be4 27.Nd2 (27.Na5 Qg5 28.f3 Qe3 29.Kf1 Nd4 30.Rc8 Qe2 31.Kg1 Nf3 32.gf3 Qe3 33.Kf1 Qf3 (33...Rc8?! 34.fe4 Qf3 35.Kg1=) 34.Ke1 Qe3 (34...Rc8 35.Nc4 Qh1 36.Kd2 Qg2 37.Ke1–+) 35.Kf1 Bd3 (35...Rc8 36.Nc6 Qf4 37.Kg1 Qg4 38.Kf1 Qh3 39.Ke1 Bc6 40.Qb3 Re8 41.Kd2 Qh2 42.Kc1–+) 36.Rd3 Qd3 37.Kg1 Qd4 (< 37...Rc8 38.Nc6 Qe3 39.Kg2 Qe4 40.Kg3 Rc6 41.Qa8 Kh7 42.Qa7–+) 38.Kf1 Qf4 (< 38...Rc8 39.Ke2 Qe4 40.Kd2–+) 39.Ke2 Qh2 40.Kf1 Qf4 41.Kg2 Qe4 42.Kg1 Rc8–+) 27...Bd3 28.Bd3 Rd3 29.Ne4 Qd8 30.h3 Rd5 31.Qb3 Rd1 32.Rd1 Qc7 33.Rd5 Ne7 34.Rd1 Rd8 35.Rd8 Qd8 36.f3 Qd7 37.Qc4 Nd5 38.Kf2 Qe6 39.Qd4 Nc3 40.Nc3+= bc3 41.Qd8 Kh7 42.Qd3 g6 43.Qc2 a4 44.h4 h5 45.Qa4+= Qb6 46.Qf4 Qb2=+ 47.Kg3 Kg8 48.Qe5+= Qd2 49.Qb8 ½–½. freddy007 (2265) – Frank Bendig (2300), ChessWorld.net, 2003.

5.Nf3 Nc6 6.Qe3 Be7 7.Nbd2 0–0 8.Bb2 d6 9.cd6 Qd6 10.Qd3 Qc7 11.a3 Rd8 12.Qb3 (12.Nd4 Nd4 13.Bd4 Be6=) 12...Be6=+ 13.c4 Bf5 (13...Na5!? 14.Qb5 Nc4=+) 14.Qc3 Rd7 (14...Bc5 15.e4 Be6 16.Rd1=) 15.e3 (15.e4 Be6=) 15...Rad8=+ 16.Rd1 Ne8 17.Be2 Bd3 18.Bd3 Rd3 19.Qc2 Ba3 20.Bd4 Nb4 21.Qb1 Nd6 22.0–0 (Better is 22.Ne5!? Rd2 23.Rd2 Nc4 24.Nc4 Qc4 25.f3+= (25.Ba7 Qc3 26.Bd4 Qc4+–)) 22...Nc4=+ 23.Nc4 Qc4 24.Ne5 Rd1 25.Nc4 (25.Rd1!? Qe6 26.Qa1=+) 25...Rb1–/+ 26.Rb1 (26...Nc2 A) < 27.Rb7 A1) 27...Rd4? 28.ed4 Bb4 29.Rb8 (29.Ra7?! Nd4 30.Ra8 Bf8+–) 29...Bf8 30.d5+–; A2) 27...Nd4 28.ed4 Rd4–/+; B) 27.Na3 Na3 28.Rb7+=) –/+. freddy007 – Darlanio, ChessWorld.net, 2004.

5.Bg5 Nc6 6.Qe3 Qe7 7.Qe7 Be7 8.Nc3 Nb4 9.Rd1 Nc2 10.Kd2 Nb4 11.Bf6 Bf6 12.Ne4 Be7 13.Ke3 b6 14.Nd6 Bd6 15.cd6 Na2 16.Kd2 Bb7 17.e3 0–0 18.Ne2 Rfc8 19.Rb1 Rc6 20.Rb2 Rd6 21.Nd4 Bd5 22.Bd3 a5 23.Nf5 Re6 24.e4 Be4 25.Be4 Re4 26.Ra2 Rae8 1–0. Rosner,Dirk (1700) – Rushton,Darren, TSC, 2002.

5.Bg5 Be7

6.Nd2 0–0 7.Rb1 Nc6 8.Qc4 d5 9.cd6 Qd6 10.Ngf3 Rd8 11.e3 Be6 12.Qa4 Nd5 13.Be7 Qe7 14.Qh4 Qh4 15.Nh4 Rd7 16.a3 Nc3 17.Rc1 Rad8 18.Nhf3 Bf5 19.h4 b5 20.h5 a6 21.Rh4 h6 22.Rf4 Bh7 23.Bc4 Rc8 24.Bb3 Rcd8 25.a4 b4 26.Bc4 a5 27.g4 Rc7 28.Bb3 Rcd7 29.Kf1 Kh8 30.Rc4 Rd6 31.e4 f6 32.Re1 Nd4 33.Nd4 Rd4 34.Rd4 Rd4 35.e5 fe5 36.Nf3 Re4 37.Ne5 Re1 38.Ke1 Be4 39.f4 Bb7 40.Kf2 Bh1 41.f5 Kh7 42.Ke3 Nd5 43.Kd4 Nf6 44.Kc5 Bg2 45.Kb5 Bh3 46.Bf7 Ng4 47.Bg6 Kg8 48.Ng4 Bg4 49.Ka5 Bd1 50.f6 gf6 51.Kb4 Kf8 52.a5 1–0. Poschmann,Hans (1700) – Rushton,Darren, TSC, 2001.

6.Nd2 Na6 7.Rb1 Qc7 8.Ngf3 Nc5 9.e4 0–0 10.e5 Ne6 11.Qc4 Qc4 12.Nc4 Ng5 13.Ng5 Nd5 14.Ne4 Bb4 15.Kd1 d6 (15...f5 16.ef6 Nc3 17.Nc3 Bc3 18.Nd6 Rf6 19.Ne4+/–) 16.a3 (16.Ncd6 Nc3 17.Nc3 Bc3+/–) 16...Nc3 (16...Ba3!? 17.Na3 de5+/–) 17.Nc3+– Bc3 18.Nd6 Be5 19.Nc8 Rfc8 20.Rb7 Rab8 (20...Rc7 21.Rb4+=) 21.Rb8 (21.Ra7 Bd4 22.Rd7 Bf2 23.Ba6+/–) 21...Rb8+= 22.Kd2 Rb1 23.g3 Bd6 24.a4 Ra1 25.Bg2 Ra4 26.Rb1 Rb4 ½–½. Taulien,Hans_Juergen – Weingarz,Wilfried, remoteschach.de, 2002.

6.Nd2 Nc6 7.Qc3 d5 8.cd6 Qd6 9.Ngf3 h6 10.Bh4 0–0 11.e3 Be6 12.a3 (12.Bg3 Qb4 13.Qb4 Nb4=) 12...Qc7 (12...Rfd8 13.Bd3+=) 13.Qb2 Qb6 (13...Rfd8!?+=) 14.Qb6+/– ab6 15.Bd3 g5 16.Bg3 Ba3 17.0–0 Bc5 18.Nb3 Nh5 19.Nfd4 Ng3 20.hg3 (worse is 20.Ne6 Nf1 (worse is 20...fe6 21.hg3 g4 22.c3+=) 21.Nf8 Ra1 22.Na1 Ne3–/+) 20...Bb3 21.Nb3 Bb4 22.Rab1 Kg7 23.Rfd1 Rfd8 24.Kf1 Kf6 25.Ke2 Rd6 26.Nd2 Bd2 27.Rd2 Rad8 28.Rdd1 Kg7 29.Rb5 Re6 30.Rb2 Ne7 31.Rdb1 Rdd6 32.g4 Nd5 33.Kd2 Nf6 34.f3 Nd5 35.e4 Nf4 36.g3 Ng6 37.Ke3 Ne5 38.Rb5 Rc6 39.Rd5 Rc7 40.Rb4 Rcc6 41.Rb3 Rc8 42.c3 Nd3 43.Kd3 Ra8 44.Rdb5 Ra6 45.c4 Rd6 46.Ke3 Rc6 47.Kd4 Rd6 48.Ke5 Rc6 ½–½. Borrmann,Fritz – Rades,Andreas, DESC, 2006.

6.Nd2 Nc6 7.Qc3 h6 8.Bh4 d6 9.cd6 Qd6 10.Ngf3 Bf5 11.Rb1 Nb4 (11...Qd7!?+=) 12.e4!+/– Ne4 (12...Be4 13.Ne4 Combination; 12...Ne4 13.Qe5 Double attack (13.Qg7 Pinning; 13.Qg7 Deflection; 13.Qe5 Decoy)) 13.Bb5 Nc6 14.Bc6 bc6 15.Nd4?? (better is 15.Ne4 Be4 16.Qg7+/–) 15…Nc3–+ (15...Nc3 16.Nf5 Qe5 17.Ne3 Nb1 18.Nb1 Qa5 19.Ke2 Bh4–+; 15...Bh4?! 16.Nf5 Bf2 17.Kf1 Nd2 18.Kf2 Ne4 19.Kg1 Nc3 20.Nd6 Kd7 21.Rb3–+) 0–1. Karpenko – Goretov, RUS–Cup3 email, 2003.

6.e3 Nc6 7.Qc3 0–0 8.Nd2 h6 9.Bh4 Nd5 10.Be7 Qe7 11.Qc4 Qf6 12.Rc1 Nc7 13.Ne4 Qg6 14.Nd6 b6 15.Qd3 bc5 16.Qg6+/– fg6 17.Bc4 Kh7 18.Nf3 Ba6 19.Ba6 Na6 20.Ke2 Rab8 21.Nd2 Ne5 22.a3 Nf7 23.N2c4 Nd6 24.Nd6 Rb2 25.Rhd1 Ra2 26.Nc4 Nb8 27.f3 Rf7 28.Rd3 Na6 29.Kd2 Nc7 30.Nd6 Re7 31.Rb1 Re5 32.e4 Rh5 33.h3 Ne6 34.Nf7 c4 35.Rd7 c3 36.Ke3 Rb2 37.Rbd1 Rc2 38.Re7 Rg2 39.Re6 c2 40.Rc1 Ra5 41.Ne5 Ra3+/– 42.Nd3 g5 43.Rc6 Rh2 44.e5 Ra5 45.R1c2 Rh3 46.e6 Rf5 47.Kd4 (47...Rff3 48.Ne5+–) 1–0. Tihomir Glowatzky – AndyAndyO, ChessWorld.net, 2005.

6.e3 Nc6 7.Qc3 h6 8.Bh4 b6 9.Nd2 Bc5 10.Ngf3 Bb7 11.Bc4 g5 12.Bg3 0–0 13.Qd3 d5 14.Bb5 Qc8 15.0–0 Ne4 16.Rfd1 Ng3 17.hg3 (17.fg3? Nb4 18.Qb3 Nc2–+) 17...g4 18.Bc6 (18.Qd5? gf3 19.Qh5 fg2 20.Qh6 Qe6 21.Qg5 Qg6 22.Qg6 fg6 23.Bc4 Kg7–+) 18...Qc6 19.Nd4 Qg6 20.N2b3 Qd3 21.cd3 Ba3 22.Nb5 Bb2 23.Rab1 Be5 24.d4 Bb8 25.Nc3 Kg7 26.Nc5 Bc8 (< 26...bc5 27.Rb7 cd4 28.Rd4+/–) 27.Nd3 Be6 28.Nb4 Rd8 29.Rdc1 Bd6 30.Nc6 (< 30.Ncd5 a5 31.Nc6 Bd5 32.Nd8 Rd8 33.Rb6 Ba2=+) 30...Rd7 31.Nb5 Bf5 32.Rb3 Bf8 33.Ne5 Re7 34.Rbc3 a6 (34...f6!? 35.Nd6 Be6+=) 35.Nc7+/– Rd8 36.Nc6 Rc7 37.Nd8 Rd7 38.Rc8 Bd6 39.Ra8 a5 40.Rcc8 Re7 41.Nc6 Re6 42.Na7 Bd3 43.Rg8 Kf6 44.Rg4 Be2 45.Rgg8 Bc4 46.Nc8 Bb4 47.a4 b5 48.ab5 Bb5 49.Rb8 Bc6 50.Rd8 Kf5 51.Rb6 h5 52.Na7 Bd7 (52...Be7 53.Rh8 (53.Rc6?! Bd8 54.Rc8 Rd6+/–; 53.Nc6 Bd8 54.Rb5 Rc6 55.Rd5 Ke4 56.Rd8 Rc1 57.Kh2 Rc2+–) 53...Ba4 54.Nc8+–) 53.Rb4! 1–0. Tihomir Glowatzky (2165) – Frank Bendig (2335), ChessWorld.net, 2003.

4.e3 de3=+

5.fe3 Bc5–/+ 6.Bb2 Nf6 7.Qf3 –/+.

5.fe3 Bc5–/+ 6.e4?? Qf6–+ 7.Qf3 Qa1 8.Bc4 (8.Qb3 Nf6–+) 8...Nh6 (8...Qb1 9.Qf7 Kd8 10.Ne2–+) 9.Bh6 (9.Qb3 Rf8 10.Bh6 gh6–+) 9...gh6 (Better is 9...Qb1!? 10.Kd2 Qb4 11.Kd3–+) 10.Qd1 Bf2 (Better is 10...Rg8 11.g3 d6–+) 11.Kf2 Qa2?? (Better is 11...Qf6 12.Nf3 Nc6–+) 12.Ba2+– Nc6 13.Qd5 (Better is 13.Qh5 Rf8 14.Nc3 Ne7+–) 13...Ne7 (13...Rf8 14.Nc3 f5 15.Nb5 fe4 16.Ke3+–) 14.Qf7 Kd8 15.Nf3 d6 (15...Re8 16.Qh7 Kc7+–) 16.Rd1 Re8 17.Rd6 +–. Seanypop – RX7 MASTER, ChessWorld.net, 2004.

5.fe3 Bc5 6.Qf3 Nf6 7.Bc4 (Better is 7.Bb2!?–/+) 7...d5–+ 8.Bb3 Bg4 9.Qf4 Bd6 10.Ba4 Nc6 11.Qg5 (11.Bc6 bc6 12.Qa4–+) 11...Qa5 12.Nc3 (12.Bd2 Qa4 13.Nc3–+) 12...Qc3 13.Kf2 Ne4 14.Kf1 Qc4 15.Ne2 (15.Ke1 Bb4 16.c3 Bc3 17.Bd2 Bd2) 15...Qe2 16.Kg1 Qf2 0–1. Seanypop (1675) – freddy007 (1990), ChessWorld.net, 2003.

5.Be3!? Bc5 6.Bc5 Qa5 7.Qd2 Qc5 8.Qc3 Qc3 9.Nc3 =+.

3.d4 d5

4.Bb2 ed4 5.Bd4 Nf6 =.

4.cd6 ed4 5.Nf3 Bd6 +=.

4.e3 Nc6 5.Nf3 Bg4 +=.

4.Be3 Nc6 5.c3 Nf6 =.

4.de5 Bc5 5.Nf3 Nc6 +=.

3.d4 d6

3.d4 d6 4.Bb2 dc5 5.de5 Qd1 +=.

4.c3 dc5 5.de5 Qd1 =.

4.d5 dc5 5.e4 Nf6 =.

4.cd6 ed4 5.Nf3 Bd6 +=.

4.cd6 Qd6 5.c3 Nc6 6.Ba3 Qf6 7.Bf8 Kf8 8.e3 Be6 9.d5 Rd8 10.e4 Bd7? (Better is 10...Nce7+/–) 11.dc6+– Bc6 12.Qc2 Ne7 13.Nf3 Qd6 14.Nbd2 Nf5 (14...Qc7+–) 15.ef5 g6 (15...Qc7 16.Bd3+–) 16.h4 (16.fg6 hg6 17.Nc4 Qe7+–) 16...f6 (16...Bf3 17.Nf3 Qc7 18.Rc1+–) 17.fg6 hg6 18.Qg6 Rg8 19.Qh6 Rg7 (19...Ke7 20.Qh7 Ke6 21.Bc4 Bd5 22.Qb7 Rg2 23.Qa7 Bc4 24.Nc4+–) 20.Bc4 b5 (20...Bd5 21.Bd5 Qd5 22.Qf6 Kg8+–) 21.Qh8 Ke7 22.Qg7 Ke8 23.Qf7 1–0. freddy007 (1955) – Seanypop (1685), ChessWorld.net, 2003.

4.de5 de5 5.Qd8 Kd8 6.Bb2 +=.

3.e3 Qa5

4.Ba3 Nc6 5.Nf3 Nf6 =.

4.Bb2 Nc6 5.Nf3 e4 +=.

4.c3 Bc5 5.d4 ed4 =.

4.Nf3 Nc6 5.c3 e4 +=.

4.f4 ef4 5.ef4 Qc5 =.

3.e3 Bc5

4.Bb2 Nc6 (--> 3.Bb2 Nc6 4.e3 Bc5).

4.Bb2 Nc6 5.Nf3 (--> 3.Bb2 Nc6 4.Nf3 Bc5 5.e3).

4.Bb2 d6 5.d4 ed4 6.ed4 Bb6 7.Nf3 Ne7 8.Nbd2 0–0 9.Bb5 Bd7 10.c4 Bb5 11.cb5 Nf5 (11...a6 12.ba6 Ra6 13.0–0=) 12.0–0+= d5 13.Qb3 a6 14.a4 ab5 15.ab5 Ra1 16.Ra1 Re8 17.h3 h6 18.Ra8 Bc7 19.Ba3 b6 20.Ra7 Bf4 21.Bb4 Bd6 (21...Re6 22.Ra8=) 22.Bd6 Qd6 23.Qc2 Qf4 (23...Qe6 24.Qc7 Rc8 25.Qb7+–) 24.Nb3 g6 (better 24...f6+=) 25.Ne5 (better 25.Rb7!?+=) 25...Nd4= 26.Nd4 Qe5 (26...Qd4 27.Nf7 Qg7 28.Qd2 Qf7 29.Rf7 Kf7 30.Qd5 Ke7 31.Qe4 Kf7 32.Qb7 Kf6 33.Qb6 Kf7 34.Qc7 Kf6 35.b6+–) 27.Qc7 (27.Nf3 Qe6=) 27...Qe1=+ 28.Kh2 Qf2 29.Nf3 Rf8 30.Qf4 h5 31.Rb7 h4 32.Qd6 Exerts pressure on the isolated pawn 32...Re8 33.Ng5 d4 (33...Qg3!? 34.Qg3 hg3 35.Kg3 f6+–) 34.Nf7+– Qg3 35.Qg3 hg3 36.Kg3 d3 37.Nh6 Kh8 38.Ng4 Rf8 39.Rb6 Rd8 40.Kf2 (40.Rg6 Kh7 41.Rf6 d2+–) 40...d2+– 41.Rb8?? (41.Ne3 Kg7 42.Ke2+–) 41...d1Q–+ (41...Rb8?! 42.Ke2–/+) 42.Rd8 Qd8 43.Ne3 Qd2 44.Kf3 Qb4 0–1. Jacon,Marcel (1740) – Meraiya,Harshil (1635), FICGS, 2010.

4.Bb2 d6 5.d4 ed4 6.ed4 Bb6 7.Nf3 Nf6 8.Bb5 Bd7 9.Qe2 Qe7 10.Bd7 Kd7 11.Qe7 Ke7 12.Nbd2 Nc6 13.0–0 Nb4 0–1. Stacey,Alan (1875) – Jacon,Marcel (1740), FICGS, 2010.

4.c4 Nc6=+ 5.Nc3 Nf6 6.Qc2 0–0 (6...d6 7.d3=+) 7.Nf3 Re8 8.d3 (8.Rb1 Nb4 9.Qa4 e4=+) 8...d5 9.a3 (9.Nd5 Nd5 10.cd5 Qd5=+) 9...Bb6 (9...dc4 10.dc4 Nd4 11.Qd1–/+) 10.Bb2 (10.cd5 Nd5 11.Nd5 Qd5–/+) 10...d4–/+ 11.ed4 (11.Nd1 e4 12.de4 Ba5 (12...Re4?! 13.Bd3 Ba5 14.Kf1=) 13.Ke2 Re4–+) 11...ed4 12.Ne4 Ne4 13.de4 f5 14.Nd2 fe4 15.Ne4? (15.c5 Ba5 16.Bc4 Be6–+) 15...Bf5?? (better is 15...Qh4 16.Bd3 Ne5 17.Nf6 gf6–+) 16.f3–/+ Ba5 17.Kd1 Ne5 18.Bd3 Be4 19.Be4= d3 20.Qb3 Qg5 21.Bd5? Kh8–+ 22.Bc3 Qg2 23.f4 Qe2 24.Kc1 Bc3 25.Qc3 Nc4 26.Bc4 d2! 27.Qd2 Qc4 28.Kb2 Re2 29.Rhd1 Rd2 30.Rd2 Rc8 31.Rad1 h6 32.Rf2 a5 33.Rdf1 Qc3 34.Ka2 Rd8 (35.Rg1 Rd2 36.Rd2 Qd2 37.Kb1 Qd3 38.Ka2 Qc4 39.Kb1 Qb3 40.Ka1 Qa3 41.Kb1 Qd3 42.Ka2 Qd2 43.Kb1 a4–+) 0–1. Frech,Josef – Poffers,Rieke, Schwarzach op–C, 2001.

4.c4 Nc6=+ 5.Nc3 Nf6 6.Nge2 0–0 (6...d5 7.d4 Bb4 8.a3=+) 7.Nd5 (7.d4 Bb4=) 7...d6 (7...Re8 8.Nec3=+) 8.Nec3 (8.d4 Bb6=) 8...Be6 (8...Nd5 9.cd5 Na5 10.Bb2=+) 9.Be2 (9.Rb1 Rb8=) 9...Bd5 (9...Nb4 10.Qb3 Nbd5 11.cd5=+) 10.cd5= Ne7 11.Qb3 (11.Rb1 Rb8=) 11...Qa5 (11...Rc8 12.0–0=) 12.Rb1 Rab8 13.a4 a6 14.0–0 Rfc8 15.Bc4 Nd7 16.d3 f5 (16...Nb6 17.Ne4 Nc4 18.dc4+= (< 18.Qc4 Be3 19.Qb3 Bc1 20.Rfc1 b5–/+)) 17.Bd2+= Qd8 (17...Qc7 18.Ne2+=) 18.Qd1 (18.Ne2 Qb6+=) 18...Bb6 (18...Nb6 19.Ba2+=) 19.Ne2 (19.Qe2 Ba5=) 19...Kh8 (19...Nf6 20.Qb3 Ba5 21.Ba5 Qa5 22.Qb6 Qb6 23.Rb6+=) 20.Ba2 (20.Rb2 Ba5=) 20...Nf6= 21.Ng3 g6 22.Bb3 Ba5 23.e4 f4 24.Ne2 Bb6 25.Kh1 g5 26.f3 Ng6 27.d4 ed4 28.Bc1 d3 29.Qd3 Ne5 30.Qd1 Nfd7 31.g3 fg3+= 32.Ng3 Qf6 33.Nf5+/– Rf8 34.Ba2 Qg6 35.Rb2 h6 36.Rg2 Qh5 37.f4 Qd1 38.Rd1 Nf7 39.Bb2 Kh7 40.Bb1 Rbe8 41.h4+– Rg8? 42.hg5 hg5 43.Rh2 Kg6 44.Rdd2 Nf6 45.Ne7!! Kg7 46.Ng8 Rg8 47.Rdg2 Be3 48.e5 de5 49.fe5 (49...Ne5 50.Be5+–; 49.Be5?! Rc8 50.Bb2 Kf8 51.fg5 Nd5+–) 1–0. Sitnikov,A (2440) – Aveskulov,V (2455), Femida Kharkov, 2005.

4.c4 Nc6=+ 5.Nc3 Nf6 6.Nf3 0–0 =+.

4.c4 Nc6=+ 5.Ne2 d5 6.cd5 Qd5 =+.

4.d4 Bb4 5.c3 Bd6 6.Ba3 Ba3 7.Na3 d5 (7...ed4 8.Qd4 Nf6 9.Qd6+=) 8.de5+/– Qe7 (better is 8...Ne7!?+/–) 9.Nb5+– Qe5 10.Nf3 Qe7 11.Qd5 Nf6 (11...Nc6 12.Nd6 Kf8 13.Ng5+–) 12.Qe5 Qe5 (12...Na6 13.Nd6 Kf8 14.Rb1+–) 13.Ne5 Na6 (13...Nbd7 14.Nc7 Kd8 15.Na8 Ne5 16.Rb1+–) 14.Nd6 Ke7 15.Ba6 (15.Ndf7 Rf8 16.Ba6 ba6+–) 15...ba6 (15...Kd6 16.Nf7 Ke7+–) 16.Ndf7 (16.Nef7?! Rf8+/–) 16...Re8 17.Rd1 (17.c4 Ne4 18.h4 h6+–) 17...Be6? (better is 17...Ne4 18.c4 Be6+–) 18.Nd6 Red8 19.Nc6 Kf8 20.Nd8 Rd8 21.e4 Ba2 22.Rd4 Ke7 23.Nf5 Ke8 24.Ng7 Ke7 25.Nf5 Ke8 26.0–0 Rd4 27.cd4 Kd7 28.Ra1 Bc4 29.f3 Nh5 30.Kf2 Nf4 31.d5 Nd3 32.Ke3 Nb4 33.Kd4 Nc2 34.Kc4 Na1 35.Kc3 a5 36.e5 a4 37.e6 Ke8 38.d6 Nb3 39.Ng7 Kd8 40.e7 (40...Kd7 41.e8Q Kd6 42.Qd8 Kc5 43.Ne6 Kb5 44.Qd6 h6 45.Nc7 Ka5 46.Qb4#) 1–0. Sopermi (2085) – betelgeuze (1840), ajedrez21.com, 2001.

4.d4 Bd6 5.Bb2 Nc6 6.de5 Be5 7.Be5 Ne5 8.Nf3 =.

4.d4 Be7 5.c3 (5.de5 Qa5 6.Bd2 Qe5+–) 5...d5 (5...d6 6.Bb5 Bd7 7.Bd7 Nd7 8.Qf3=) 6.Nf3 (6.de5 Nc6+=) 6...Nc6 (6...e4 7.Ne5=) 7.Bb5 (7.Ne5!? Ne5 8.de5+–) 7...e4= 8.Ne5 Bd7 9.Nd7 Qd7 (worse 9...Kd7 10.Qg4 Ke8 11.Qg7+–) 10.0–0 a6 11.Be2 Na5 12.Nd2 Rc8 13.Bb2 Nf6 14.Rc1 b5 15.Nb3 (15.Rb1 0–0=+) 15...Nc4–/+ 16.Ba1 0–0 17.Nd2 Bd6 18.Nc4 bc4 (worse 18...Rc4 19.Bc4 bc4 20.f3=) 19.Rb1 Rb8 20.Qc2 Rb5 21.a4 Rbb8 22.Bb2 (22.Rfd1 Bc7–/+) 22...Rb7 23.a5 Rfb8 24.Ba1 Rb3 25.h3 Qa4 26.Rbc1 (26.Rb2 Ba3 27.Ra2 Qa5–/+) 26...Qa5 27.Qd2 Qb5 28.Bd1 a5 (28...Ra3!? 29.Bc2–+) 29.Bb3–/+ cb3 (29...Qb3?! 30.Rc2=+) 30.Bb2 a4 31.Ra1 Nd7 32.Ba3 (better 32.c4 dc4 33.Rfc1–+) 32...Ba3 33.Ra3 Nb6 34.c4 (34.Raa1 b2 35.Qe1–+) 34...Nc4 (34...Qc4?! 35.Rc1–+) 35.Qc1 (35.Rb3 ab3 36.Qe2 b2–+) 35...Na3 (better 35...b2 36.Qb2 Nb2 37.Raa1–+) 36.Qa3 b2 (36...Qf1 37.Kf1 b2 38.Kg1 b1Q 39.Kh2–+) 37.Rb1 Qb3 38.Qb3 (38.Rb2 Qa3 39.Rb8 Qf8 40.Rb5–+) 38...Rb3 (38...ab3?! 39.Rb2 h5 40.Kf1–/+) 39.Kh2 a3 40.Rb2 ab2 41.Kg3 b1Q 42.Kf4 Qc2 43.f3 (43.Kg5 Qf2 44.g3 h6 45.Kg4 Qf3 46.Kh4 g5) 43...Qc6 (43...ef3 44.Kg4 fg2 45.Kg3 g1Q 46.Kh4 Qe4 47.Kh5 Qgg6) 44.Kg3 (44.fe4 Qf6 45.Kg3 Re3 46.Kh2 Qf4 47.g3 Qg3 48.Kh1 Re1) 44...Qd6 (44...Qg6 45.Kf2 Rb2 46.Ke1 Qg2 47.fe4 Qe2) 45.f4 (45.Kg4 Rb2 46.g3 Qg6 47.Kf4 Qf6 48.Kg4 g6 49.fe4 h5) 45...Rb2 46.h4 (46.Kh2 Qg6 47.f5 Qg2) 46...Qg6 47.Kh3 Qg2 0–1. BeepBeepImAJeep (2555) – IMAndrasToth (2425), lichess.org, 2016.

4.Ne2 d5 5.d4 Bd6 =.

4.Nf3 Nc6 5.d4 ed4 6.ed4 Bb6 7.d5 Qf6 8.c3 Ne5 9.Qe2 d6 10.Nbd2 (10.Bg5 Qf5+=) 10...Ne7= 11.Ne5 Qe5 12.Qe5 de5 13.c4 Bf5 14.Nb3 Rc8 15.Bb2 f6 16.Rc1 White plans c5 (16.Ba3 a5+=) 16...a5= 17.a4 (17.c5 a4 18.Bb5 Bd7 19.cb6 Bb5–/+) 17...Bd7 18.Ba3 White intends c5 18...Ba4 19.Rb1 Rb8 20.c5 (20.Nd2!? Bd4 21.Bd6=) 20...Bd8 21.Bc4 (21.d6 Nd5–/+) 21...h5 (21...b5 22.cb6 Bb6 23.Nc5=+) 22.0–0 (22.Nd2 b5 23.cb6 Rb6=+) 22...h4 23.Nd2 Nc8 (23...b5 24.cb6 Rb6 25.Rb6 Bb6 26.Rb1=) 24.f4 (24.Ba6 Nb6 25.cb6 ba6=) 24...ef4 25.Rbe1 Kd7 26.Rf4 (26.Ne4 h3=) 26...b5=+ 27.Be2 (27.Rg4 g5 (27...bc4 28.Rg7 Ne7 29.Nc4+–) 28.Bd3 b4=) 27...b4 28.Bb2 Kc7 29.Rg4 Rh7 30.Ra1 Bd7 (30...Bb5 31.Bf3 Be7 32.d6 Nd6 33.cd6 Bd6 34.Ra5+–) 31.Rd4+= Ra8 (31...Bb5 32.d6 Kc6 33.Bf3 Kd7 34.Nb3+–) 32.Bf3 (32.Rb4 ab4 33.Ra8 Be7+–) 32...Kb8+= 33.c6 Nd6 (33...Bf5 34.d6 Ra7 35.Nc4+–) 34.Nc4 (34.cd7!? g5 35.Nc4 Rd7 36.Kf1+–) 34...Nb5+= 35.Re4 Bc6 (35...Bf5 36.Re8 Ra6 37.Rd8 Kc7+–) 36.dc6+– (36.dc6 Rh8 37.c7 Bc7 38.Na5 Ra5 39.Rb4 Ra1 40.Ba1+–) 1–0. Cirulis,Ilmars (1890) – Duttagupta,Aniruddha (1885), FICGS, 2015.

4.Nf3 Nc6 5.d4 ed4 6.ed4 Be7 7.d5 Bf6 8.c3 Ne5 9.Nbd2 (9.d6 Nf3 10.Qf3 Qb6+=) 9...d6 (9...Qe7 10.Ne4 Nf3 11.Qf3 Bc3 12.Qc3 Qe4 13.Qe3=) 10.Bb5 Bd7 11.Bd7 Qd7 12.Ne4 0–0–0 (12...Qg4 13.Nf6 Nf6 14.Ne5 Qe4 15.Qe2 de5 16.Qe4 Ne4 17.c4=) 13.Nd4+= Ne7 14.Rb1 Nd5 15.Nb5 (15.Qb3!? Nb6 16.Nf6 gf6 17.Nb5+=) 15...Qe6= 16.Na7 Kb8 17.0–0 (17.Nb5!? Nc4 18.Qe2 Qe4 19.Qe4+=) 17...Ka7= 18.Qa4 Kb8 19.Be3 Kc8 20.Rfd1 Nc7 21.Qa7 (21.Qb4!? b5 22.Nd6 Rd6 23.Rd6 (worse is 23.Qd6 Qd6 24.Rd6 Nc4–/+) 23...Qa2 24.Qe4=) 21...b5= 22.Rb5 Nb5 23.Qa6 The pressure on the isolated pawn grows 23...Kc7 24.Bb6 Kb8 25.Rb1 Qd5 26.Bd8 Rd8 27.Rb5 (27.Rb5 Qb5 28.Qb5 Kc7 29.f4+–) 1–0. Buczinski,Henryk (2200) – Cotura Vidal,Lluis (1875), DJ–CT18/pr37, 2011.

4.Nf3 e4 5.d4 Bb4 6.Bd2 Bd2 (6...Be7 7.Ne5 Nf6 8.Bc3=) 7.Nfd2 d5 (7...Nf6 8.c4=) 8.c4+= Nf6 9.Nc3 0–0 (9...Be6 10.Rb1 b6 11.cd5 Bd5 12.Qa4 Bc6 13.Bb5+/–) 10.cd5+/– Bf5 (10...Nd5 11.Nde4 Be6 12.Bd3+/–) 11.Qb3 b6 12.Be2 Nbd7 13.0–0 Rc8 (13...a6 14.f3 ef3 15.Rf3+/–) 14.Nb5 Ra8 15.Rac1 a6 (15...Ne8!?+/–) 16.Nc7+– Ra7 (16...Rc8 17.Na6 Nb8 18.Rc8 Qc8 19.Nb8 Qb8 20.Rb1+–) 17.Na6 Qa8 (17...Re8 18.Nb4 Qa8 19.Nc4+–) 18.Nb4 (18.Nc7 Qd8 19.Nb5 Ra8+–) 18...Ra3 19.Qb2 Ra5 20.Bc4 b5 21.Bb3 Re8 (21...Bg4 22.Rc2+–) 22.d6 Bg6 23.Rc2 Nb6 (23...Bh5 24.Rfc1 Kh8 25.Rc7+–) 24.Rfc1 Nfd5 (24...Ra3+–) 25.Bd5 (better is 25.Nd5!? Nd5 26.d7 Rd8+–) 25...Nd5 26.d7 Rd8 27.Rc8 (27...Nb4 28.Qb4+–) 1–0. jaskier (2200) – pietshaq (1675), internet, 2007.

4.Nf3 e4 5.d4 Bb4 6.Nfd2 Nf6 7.c4 d5 (7...Nc6 8.Qb3 Qe7 9.Nc3=) 8.Qa4 (8.Qb3 Nc6 9.Ba3 Ba3 10.Qa3 Bf5+=) 8...Nc6 9.Ba3 Qd6 (9...Qa5 10.Qa5 Ba5 11.cd5 Nd5 12.Bc4+=) 10.Be2 dc4 11.Nc3 0–0 12.Bb4 Qb4 13.Qb4 Nb4 14.0–0 Be6 15.Rfc1 (15.Rab1 Nfd5 16.Nd5 Nd5 17.Bc4 b6+=) 15...Nd3= 16.Rcb1 Rab8 (16...b6 17.a4=) 17.Nde4 Ne4 18.Ne4 f5 (18...b6 19.Bd3 cd3 20.Rd1+=) 19.Nc3 (19.Bd3 fe4 20.Be4 b5+=) 19...Rfc8 (19...Rfd8 20.Rd1+=) 20.a4 b6 (20...Rd8 21.Rd1+=) 21.h3 (21.Rd1 Bd7+=) 21...Kf8 (21...a6 22.Ra2+=) 22.Rd1 Bd7 23.Bd3 cd3 24.Rd3 Rc4 25.f3 Rbc8 26.Ra3 g5 27.e4 h5 28.d5 Re8 (28...Ke7 29.Kh1+=) 29.Kf2+– h4 30.Re3 (30.Ke2 fe4 31.fe4 Ke7+–) 30...Rec8 31.ef5 (31.Ke2 f4 32.Rd3 Ke7+=) 31...Bf5+= 32.a5 ba5 33.Re5 Bh3 34.Ne4 Rc2 35.Ke3 Rg2 36.Ra5 Rc1 37.Kd4 (37.Rg5 Rg5 38.Ng5 Bd7+=) 37...a6 (37...Re1 38.Kc5 Rc2 39.Kd6+=) 38.Ra6+= Rd1 39.Kc3 (39.Kc5!? Rc2 40.Kd6+=) 39...Rc1= 40.Kd4 Rd1 41.Kc5 Rc2 42.Kd6 Rc8 43.Rg5 (43.Ng5!? Rd8 44.Kc5 Rc8 45.Rc6+=) 43...Rd8= 44.Kc5 Rc8 (44...Rc1!? 45.Kd4 Rd1 46.Ke3 R1d5 47.Rf6 Ke8 48.Rg8 Kd7 49.Rg7 Kc8=) 45.Rc6+– Bd7 46.Rc8 Bc8 47.Rh5 h3 ½–½. Panza (2735) – Creatchy (2800), ChessWorld.net, 2019.

4.Nf3 e4 5.d4 ed3 6.Bb2 (6.Bd3 Qf6 7.c3 Nc6=) 6...Nf6 (6...dc2 7.Qc2 Bf8 8.Bc4=) 7.Bd3+= d5 8.0–0 0–0 9.Nbd2 Nc6 10.c4 (10.Ng5 g6+=) 10...dc4 11.Bc4 Bf5 12.Nh4 (12.Rc1 Qe7=) 12...Be6 13.Be6 fe6 14.Rc1 (14.Bf6 Qf6 15.Ne4 Qe7 16.Nc5 Qc5=) 14...Qd5 (14...Be7 15.Nhf3=) 15.Nhf3 Be7 (15...Bb4 16.Bf6 Rf6 17.Qb3=) 16.Qa4 Nb4 17.Rc7 (17.Bf6 Rf6 18.e4 Qa2 19.Qa2 Na2=) 17...b5 18.Qa3 (18.Qb3 Bd6 19.Qd5 ed5=) 18...Bd6+= 19.e4 (worse 19.Ra7 Nc6 20.Ra8 Ba3 21.Ra3 b4=+) 19...Qa2 20.Rb7 Qa3 21.Ba3 e5 22.Rb5 Rfb8 23.Ra5 (23.Bb4 Bb4 24.Re5 a5=) 23...Bc7 24.Rc5 Bd6 25.Rc4 (25.Bb4 Rb4 26.Rc6 Rb6=) 25...a5 26.Rd1 Rc8 (26...Ra6 27.Ra1=) 27.Kf1 Rc4 (27...h6 28.Ke2=) 28.Nc4 Bc5 (28...Bc7 29.Ng5 Re8 30.f3=) 29.Nfe5 Ne4 30.f4 (30.f3 Nc3 31.Rd7 a4=) 30...Na6 (30...a4 31.g4=) 31.Bb2 (31.Bc5 Nac5 32.Na5 g5=) 31...a4 32.Nd7 (32.Rd7 Nf6 33.Rb7 Rb8 34.Rb8 Nb8=) 32...Ra7 33.Nc5 (33.Nce5 h5=) 33...Nac5 34.Ba3 Ra8 (34...Rf7 35.g3=+) 35.Rd4 Rb8 36.Rd5?? (better 36.Ne5=) 36...Rb1–+ (36...Rb1 37.Ke2 Nc3 38.Kd2 Nd5 39.Bc5 Rh1–+) 0–1. Cirulis,Ilmars (1790) – Nichols,Scott (2315), FICGS, 2016.

4.Nf3 e4 5.d4 Be7 6.Nfd2 Nf6 7.c4 0–0 8.Nc3 Bb4 9.Qb3 Bc3 10.Qc3 d5 11.Ba3 Re8 12.Rb1 b6 13.Rc1 Ba6 14.Be2 Nbd7 15.Bd6 dc4 16.Nc4 Nd5 17.Qa3 Bc4 18.Bc4 N7f6 19.Ba6 Qd7 20.0–0 Rad8 21.Be5 Ng4 22.Bg3 Ngf6 23.Qb3 Re7 24.Rc2 Qf5 25.Rfc1 h6 26.h3 Qg6 27.Bc7 White gets strong initiative 27...Nc7 28.Rc7 Rdd7 29.Rd7 Rd7 30.Bb5 Rd5 31.Rc7 Rg5 32.Bf1 Nd5 33.Ra7 Rf5 34.Bc4 Rg5 Do you see the mate threat? 35.g4 Qc6 36.Bb5 Qc8 37.Bd7 Qb8 38.Qa4 Nc7 39.d5! Kh7 40.d6 Nd5 41.Qe4 g6 42.Qe8 Threatening mate... how? (42.Qe8 Qa7 43.Qf7 Kh8 44.Qf8 Kh7 45.Be6+–) 1–0. Woelfelschneider,Peter – Schlaeger, 2010.

4.Nf3 f6 5.d4+/– ed4 6.ed4 Bb6 7.Bd3 d5 8.0–0 Ne7 9.c4 Bf5 (9...0–0!?+/–) 10.Bf5 Nf5 11.Re1 Kf7 12.g4 Ne7 13.cd5 Re8 (13...Nd5!? 14.Qb3 Qd7+–) 14.Qb3+– Qd5?? (better is 14...Nd5 15.Nc3 Re1 16.Ne1 Nc6 17.Qd5 Qd5 18.Nd5 Bd4+–) 15.Re7! (15.Re7 Re7 16.Qd5 Kf8 17.Nc3+–) 1–0. silencer123 (2200) – purplegadge (1780), gameknot.com, 2014.

4.Qg4 Nf6 5.Qg7 Rg8 6.Qh6 d5 7.h3 Bf5 8.Nf3 Nc6 9.Ne5 Bc2 10.Qf4 d4 11.Ba3 de3 12.Bc5 Bb1 13.Qe3 Nd5 14.Qe2 1–0. Zbroja – Blaszczak, corr 3GMM½–10 1997–99.

4.Qg4 Bf8 5.Qa4 Nc6 =.

4.d4 ed4

5.ed4 Bd6 6.Nc3 Nf6 7.Nb5 Be7 8.d5 a6 9.Nc3 Bb4 10.Nge2 0–0 11.a3 Ba5 12.Qd3 Re8 13.Bd2 d6 14.Rb1 Nbd7 15.f3 Ne5 16.Qd4 b5 17.a4 Bf5 18.Kd1 ba4 19.Ng3 Bc3 20.Bc3 Bg6 21.h4 h5 22.Be2 Qc7 23.Ne4 Be4 24.fe4 Ne4 25.Qe4 Qc3 26.Bd3 Nd3 27.Qd3 Qc5 28.Rb7 Re5 29.c4 a3 30.Rb1 Rae8 31.Qc3 Re4 32.Rb4 Qf2 33.Qd2 Re2 34.Qc3 a2 35.Ra4 Qb6 36.Rb4 Qb4 37.Qe3 R8e3 38.Re1 a1Q# 0–1. Sjeng 12.11 – Delfi 2.4, computer chess game, 2002.

5.ed4 Qe7 6.Be2+= Bb6 7.Nf3 Nf6 8.0–0 0–0 9.Re1 Nc6 10.c4 d6 11.Nc3 h6 12.Rb1 Bg4 13.h3 Bh5 14.Na4 Ba5 15.Bd2 Rfe8 16.Nc3 Bc3 17.Bc3 Ne4 18.Qc1 b6 19.Bd3 Bf3 20.gf3 Qg5 21.Qg5 Ng5 22.Kg2 Ne6 (22...Ne7 23.d5+=) 23.Be4+/– Rac8 24.d5 Nf4 25.Kg3 Ne7 26.Kf4 Rc4 27.Bb2 f5 28.Kg3 fe4 29.fe4 Ra4 30.a3 Ng6 31.f3 Ne5 32.Re3 Nc4 33.Rc3 (33...b5 34.Bc1+=) +=. Klaus Behrmann – Darlanio, ChessWorld.net, 2004.

5.ed4 Qe7 6.Be2 Bb6 7.Nf3 Nf6 8.0–0 Ne4 9.Bc4 Nc6 10.Re1 Kf8 11.Nbd2 f5 12.Ne4 fe4 13.Bd5 Qd6 14.c4 Qg6 15.Re4 d6 (15...Bc7+–) 16.Nh4 Qf6 17.Qh5 Bd4 (17...Bg4 18.Rg4 g6 19.Qh6 Ke8+–) 18.Re8 1–0. Klaus Behrmann (1960) – Seanypop (1705), ChessWorld.net, 2003.

5.ed4 Qe7 6.Ne2 Bb6 7.c4 +=.

5.ed4 Qf6 6.Nf3+= d5 7.c3 (7.Bg5 Qe6 8.Be2 Bb4 9.c3 Bd6+=) 7...Bb6 (7...Bd6 8.Bb5 Nc6 9.0–0=) 8.Bd3 (8.Bb5 Nc6+=) 8...Bg4 (8...Nc6 9.0–0=) 9.Nbd2 (9.Qa4 Bd7 10.Qb3 Ne7+=) 9...Ne7 (9...Qe7 10.Be2=) 10.0–0 0–0 11.Re1 Nbc6 12.h3 Bh5 13.Qc2 Bg6 14.Ba3 Rfe8 15.Be7 Ne7 16.Ne5 Rac8 17.Bg6 (17.Ng6 fg6 18.Qb2 Rc7=) 17...hg6 (17...Ng6 18.Ng6 Qg6 19.Qa4=) 18.Ndf3 (18.Qa4 Qd6+=) 18…Nf5 (18...Ba5 19.Re3 Nf5 20.Ng4=) ½–½. Bures,Jilji – Olej,Emil, corr CSR–chT, 1964.

5.ed4 Qf6 6.Nf3+= d5 7.Bg5 Qe6 8.Be2 Bd6 9.0–0 Ne7 10.Bb5 Nbc6 11.Re1 Qg4 12.c4 Be6 13.Nc3 0–0 (better is 13...Kf8+/–) 14.cd5?? (better is 14.Bc6 Nc6 15.cd5+– (15.Nd5?! Qh5+=)) 14...Nd5= 15.Ne4 Bb4 16.Re2 (16.Bd2 Nf4 17.Ng3 Bd2=) 16...Nc3=+ 17.Nc3 Bc3 18.h3 (18.Bc6 A) < 18...bc6 19.Rc1 Bb4 20.Qa4+= (< 20.Rc6 Bd5 21.h3 Qh5=+); B) 18...Ba1 19.Bb7 Rab8=+) 18...Qh5 19.Bc6 Ba1 20.Bb7 Rab8 21.Be7 Rfe8=+ 22.Re5 Bf5 23.Bc6 Qg6 24.Nh4?? Qc6=+ 25.Nf5 Bc3 26.Qg4 Qg6=+ 27.Bg5? h5 28.Qf4 Re5 29.de5 Rb1 30.Kh2 Qe6 (31.Nd4 Qa2–+) 0–1. Stepan,Pavel – Olej,Emil, corr CSR–chT, 1964.

5.ed4 Bb4

6.c3 Ba5 7.Bd3 Ne7 8.Ne2 0–0 9.0–0 Ng6 10.Nd2 d5 11.Nc4?? (better 11.Re1=) 11...dc4–+ 12.Bc4 Be6 13.Bd3 Ne7 (13...Bc7 14.f4 Qd6 15.Be4–+) 14.Ba3 Re8 15.c4 (15.Qb1 h6–+) 15...Bg4 16.f3 Bh5 (16...Bc8 17.Qc2 Nf5 18.Bf5 Bf5 19.Qf5 Re2 20.d5–+) 17.d5 (17.Qb1 Bc3 18.Bh7 Kh8 19.Nc3 Qd4 20.Kh1 Qc3 21.Qb5–/+) 17...Bg6 18.Rc1 Bd3 19.Qd3 Ng6 20.f4 White prepares the advance d6 (20.Rfd1 Na6–+) 20...Qh4 (20...Na6 21.Rf2–+) 21.c5 b6 (better 21...Nd7–+) 22.c6=+ Rc8 23.Qe4 a6 (23...b5!?=+) 24.d6= Nc6 25.Rc6 Re8 26.Qf3 Qd8 27.Rc7 (27.Rd1!? b5 28.d7+–) 27...b5=+ 28.Qd5?? (better 28.Rb7=+) 28...Bc7–+ 29.Nd4 Ba5 (29...Bb6!? 30.Bc5 Bc5 31.Qc5–+) 30.Bc5 (30.Nc6 Bb6 31.Kh1–+) 30...Rc8 (30...Qd7 31.f5 Ne5 32.f6–+) 31.Nc6?? (31.d7!?–/+) 31...Qd7 (better 31...Ne7! 32.Nd8 Nd5–+) 32.Na5 Nh4 (better 32...Re2 33.f5 Re5–+) 33.Nc6?? (33.f5 Re2 34.g3 Rg2 35.Kh1 Rc2–+) 33...Nf5 (better 33...Rc6 34.a4 Rec8–+) 34.Ne5–/+ Qd8?? (better 34...Rc5 35.Qc5 Qd6 36.Qd6 Nd6–/+) 35.Qf7+– Kh8 36.d7 (36.d7 Nh6 37.de8R Qe8 38.Qe8 Re8 39.Rd1+–) 1–0. BeepBeepImAJeep (2595) – coolcolm (1730), lichess.org, 2017.

6.c3 Bd6 7.Bd3 Nf6 8.Ne2 (8.Nf3 0–0+=) 8...0–0= 9.0–0 Bc7 10.Bf4 d5 11.Bc7 Qc7 12.Nd2 Nc6 13.Nf3 Bg4 14.Ng3 Rfe8 15.h3 Bd7 16.Rb1 b6 17.Nh4 (17.Qd2 Rac8=) 17...Na5 18.Rc1 (18.Qf3 Nc4 19.Bc4 Qc4–/+) 18...Nc4 19.Nh5 (better 19.Nhf5 Bf5 20.Nf5=+) 19...Nh5 (better 19...Ne4–/+) 20.Qh5+= Qd6? (better 20...h6+=) 21.Qh7+– Kf8 22.Nf5 (better 22.Qh8 Ke7 23.Qg7+–) 22...Bf5+– 23.Qf5 g6 24.Qg5 Kg7 25.Bc4 dc4 26.Rce1 Qf6 (26...a6 27.Re5+–) 27.Qf6 (27.Qd5 Rec8+–) 27...Kf6+– 28.f3 b5 29.Kf2 a5 30.a3 b4 31.ab4 ab4 32.Re8 Re8 33.cb4 Ke6?? (better 33...Rb8 34.Rb1 Ke6+–) 34.Re1+– Kd7 35.Re8 Ke8 36.Ke3 Kd7 37.Kd2 Kd6 38.Kc3 Kd5 (38...f5 39.Kc4 f4 40.Kd3+–) 39.b5 (39.b5 g5 40.f4 gf4 41.h4+–) 1–0. BeepBeepImAJeep (2620) – magdanoz (2305), lichess.org, 2016.

6.c3 Be7

7.Bd3 d5 8.Ne2 Nf6 9.0–0 0–0 10.Bf4 Nc6 11.Nd2 Bg4 12.f3 Bh5 (12...Bc8 13.Qb3=) 13.Ng3 (13.Re1 Bg6 14.Bg6 fg6=) 13...Bg6= 14.Nf5 Ba3 15.Rb1 (15.Qb3 Nh5 16.Be3 Qd7=) 15...b6 (15...Nh5 16.Be3 Re8 17.Re1 Re3 18.Re3=+) 16.Qc2 Re8 17.Ng3 (17.Bg5 h6 18.Bh4 Bf5 19.Bf5 Be7=) 17...Bf8 18.Bg6 hg6 19.Rfe1 Rc8 20.Qd3 Qd7 21.h3 Nh5 22.Nh5 gh5 23.Bg3 g6 24.Nb3 Bd6 25.Bf2 Bb8 26.Kf1 Qd6 27.Rbc1 Qh2 28.c4? (28.Re8 Re8 29.Qb5 Qh1 30.Bg1 Re6–+) 28...dc4?? (28...Qh1!? 29.Bg1 Bf4 30.Re8 Re8 31.cd5 Nd4 32.Nd4 Bc1–+) 29.Qc4 (29.Re8 Re8 30.Qc4 Qh1 31.Bg1 Ne7=+) 29...Qh1=+ 30.Bg1 Bh2?? (better 30...Re1 31.Re1 Ne7–+) 31.Re8+= Re8 Threatening mate... how? 32.Kf2 Bg1?? (better 32...Ne7 33.Bh2 Qh2+=) 33.Rg1+– Qh2 34.Nd2 (better 34.Qc6 Re7 35.Qf6+–) 34...Qd6 (34...Qf4!? 35.Qc3 Nd4–/+) 35.Ne4 (better 35.d5 Ne5 36.Qb5 Qc5 37.Qc5 bc5 38.Ne4=) 35...Qd4?? (better 35...Re4 36.fe4 Qf4 37.Ke2 Qe4 38.Kf2 Qf4 (worse 38...Qd4 39.Qd4 Nd4 40.Rd1+–) 39.Ke2 Nd4 40.Kd1 Qf6=+) 36.Qd4+– Nd4 Black is in command 37.Rd1?? (better 37.Nf6 Kf8 38.Ne8 Ke8 39.g3+–) 37...Rd8–/+ 38.Rd2 Ne6 (38...h4 39.Nc3 Ne6 40.Rd8 Nd8 41.Nd5–/+) 39.Nf6 (39.Rd8 Nd8 40.g4 Kg7=+) 39...Kg7–/+ 40.Rd8 Nd8 41.Nd5 Nc6 42.Nc3 (42.g4 hg4 43.hg4 f5–/+) 42...Nb4 43.Ke3 Nc2 44.Kd3? (better 44.Kd2 Nd4 45.Ke3 Nf5 46.Ke4–/+) 44...Nb4?? (better 44...Ne1 45.Kd4 Ng2–+) 45.Kc4 Nc6 46.Kb5 Nb8 47.Nd5 (better 47.Ne4=) 47...a5?? (better 47...Kf8!?=+) 48.Kc4 (better 48.a4!?+–) 48...Nd7 49.Kb5 (49.a4 Ne5 50.Kb5 Nd3+–) 49...Ne5 (49...Nb8 50.a4+–) 50.Nb6 (50.Kb6 a4+–) 50...Nd3+= 51.Nc4 Ne1 52.Na5 (52.Ka5?! Ng2 53.Kb6 g5+–) 52...Ng2 53.Nb3 Nf4 (53...Kf6!?+–) 54.a4+– Nd3?? (better 54...Nd5 55.a5 Kf6+–) 55.a5 Ne5 (55...Nf4 56.a6 g5 57.a7+–) 56.a6 Nd7 (56...Nf3 57.a7+–) 57.a7 Nc5 (57...Nf8+–) 58.Kb6 (58.Nc5 f5 59.a8Q g5 60.Qd8 Kf7 61.Qd7 Kf6 62.Qe6 Kg7 63.Qe7 Kg6 64.Ne6 f4 65.Qg7 Kf5 66.Nd4) 58…Nb3 (58...Nb3 59.a8Q Nd2+–). BeepBeepImAJeep (2625) – Takeda (2450), lichess.org, 2016.

7.Bd3 d5 8.Ne2 Nf6 9.0–0 0–0 10.Bf4 Nc6 11.Nd2 Bg4 12.h3 Bh5 13.Bg3 (13.Re1 Re8=) 13...Rc8 14.Qb1 Na5 15.Nf4 Bg6 16.Ng6 hg6 17.Rc1 Ba3 18.Rc2 Qe7 (18...Re8!?=) 19.Qb5+– b6 20.Rf1 Rfd8 21.Qb1 Bd6 22.Nf3 (better 22.Re1!? Qc7 23.Bd6 Qd6 24.Ba6+=) 22...Bg3=+ 23.fg3 (23.Re1!? Bf2 24.Kf2=+) 23...Qe3–/+ 24.Rcf2 Rc3 25.Be2?? (better 25.Bc2 Ne4 26.Be4 de4 27.Ne5–+) 25...Ne4–+ 26.Qe1 Ng3 27.Ba6 Nf1 28.Qf1 (28.Bf1 Qe1 29.Ne1–+) 28...Rc2 (28...Rc1 29.Qc1 Qc1 30.Kh2–+) 29.Ne5 (29.Be2 Nc4 30.Bd1–+) 29...Rf2 (better 29...Rc1 30.Qc1 Qc1 31.Kh2 Nc4–+) 30.Qf2 Qf2 31.Kf2 f6 (31...Nc4 32.Nc6 Rd7 33.Nb4–+) 32.Ng6 Kf7 33.Nf4 White gets in control 33...Nc6 34.Bb7 Nb4 35.a3 Rd7?? (better 35...Nc2–+) 36.Bc8= Rd6 (36...Rc7!? 37.Be6 Ke7 38.ab4 Kd6=) 37.ab4+= Rc6 (better 37...g5!? 38.Nd3 a5+=) 38.Bb7+– Rc2 39.Ke3 Ke7 (39...g5 40.Kd3 Rc1 41.Nd5 Rd1 42.Kc3 Rc1 43.Kd2+–) 40.Bd5 (40.b5 Kd6 41.Nd5 f5+–) 40...Kd6 41.Be4 Rc4 (41...Rc3 42.Ke2+–) 42.Nd3 (42.b5!? Rc3 43.Bd3 Rc1+–) 42...a5 43.ba5 ba5 44.Nc5 a4 45.Bd3 (45.Kd3!? Rc5 46.dc5 Kc5+–) 45...Rb4+– 46.Na6?? (better 46.Bc2 a3 47.Bb3+–) 46...Rb6 (46...Rb2!?–/+) 47.Nc5=+ a3 48.Ne4 Ke7 49.Nc3 Rc6 (49...Rb3 50.Kd2 Rb2 51.Bc2=+) 50.Nd5 (better 50.Na2!?+=) 50...Kd6=+ 51.Nb4 Rb6 52.Na2 Rb2 53.Nc3 a2 54.Na2 Ra2 55.Ke4? (55.Be4 g5–/+) 55...Ra3 (better 55...Rg2!? 56.Kf3 Rg1–+) 56.g4 (better 56.Be2–/+) 56...Rd3?? (better 56...Ra1–/+) 57.Kd3+– Kd5 58.h4 g6 (58...Kd6 59.Ke4 Ke6 60.h5+–) 59.h5 gh5 60.gh5 f5 (60...Ke6 61.Ke4+–) 61.h6 Ke6 62.Ke3 (better 62.h7 Kd7+–) 62...Kf7 63.Kf4 Kg6 64.d5 Kh6 65.Kf5 (65.d6 Kg7 66.d7 Kf6 67.d8Q Kf7 68.Kf5 Kg7 69.Qd7 Kf8 70.Kf6 Kg8 71.Qg7) 65...Kg7+– 66.Ke6 Kf8 67.Kd7 Kf7 68.d6 (68.d6 Kf8 69.Kc7+–) 1–0. BeepBeepImAJeep (2550) – sstrb (2360), lichess.org, 2019.

7.Bd3 Nf6 8.Ne2 0–0 9.0–0 d5 10.a4 Bg4 11.f3 Bh5 (11...Bc8 12.Re1=) 12.Nf4 Bg6 13.Ng6 hg6 14.Bf4 Nc6 15.Nd2 Na5 16.Qc2 (16.Re1 Rc8 17.Rc1 Bd6 18.Bd6 Qd6=) 16...Rc8= 17.Rfc1 Nh5 Black gets strong initiative 18.Be3 Bg5 19.Nf1 Be3 20.Ne3 Qg5 21.Qf2?? (better 21.Re1=) 21...Rfe8 22.Bf1? (better 22.Re1 Nf4 23.Qc2–+) 22...Qe3 23.Qe3 Re3 24.Rab1 (24.Ra3 Nf4–+) 24...Rec3 (24...Nf6!? 25.Kf2 Rec3 26.Rc3 Rc3 27.Be2–+) 25.Rc3 Rc3 26.Rb5 b6 (26...Nc6!? 27.Rb7 Rc2 28.Bd3–+) 27.Rd5 Nf6 28.Rd8 Kh7 29.Ra8 (29.Rf8 Rc7–+) 29...Nc6 30.Bb5 Nd4 (30...Rc1 31.Kf2 Rc2 32.Ke3 Nd5 33.Ke4–+) 31.Ra7 Nb5 32.ab5 Rb3 33.Rf7 Rb5 34.Rb7 (34.Re7 Rb2–+) 34...Rb1 35.Kf2 b5 (35...Rb2 36.Kg1–+) 36.g4 (36.Ke3 g5–+) 36...Nd5 Black plans b4 37.h4 b4 38.Rb5 (38.Ke2–+) 38...Nc3 39.Rb6 (39.Rb7 b3–+) 39...Rb2 (better 39...b3–+) 40.Kg3 Ne2 41.Kf2 Nd4 Black prepares the advance b3 42.Kg3 (42.Ke3 Nc2 43.Ke4 b3–+) 42...b3 (42...Rb3 43.g5–+) 43.h5 (43.Rb4 Ne2 44.Kh3 Nc1–+) 43...gh5 44.g5 (44.gh5 Ra2 45.Kg4 b2–+) 44...g6 (44...Rc2 45.Kf4 Rc3 46.Rb8–+) 45.Rb4 Nf5 46.Kf4 Ng7 47.Rb7 (47.Ke3 Ne6 48.Rb7 Kg8–+) 47...Re2 (better 47...h4 48.Kg4 Rb1 49.Kh3–+) 48.Rb3 Re8 (better 48...Ne6!? 49.Kg3–+) 49.Rb7 Rf8 50.Kg3 Rf5 (50...Kg8 51.Rb6 Nf5 52.Kh3–+) 51.f4 Rf8 52.Kf3 Rf5 (52...Kh8 53.Rb4–+) 53.Ke4?? (53.Kg3 Rc5 54.Kf3–+) 53...Kg8 (53...Ra5 54.Kf3–+) 54.Rb8? (54.Rb6 Kf7 55.Rb7 Kf8–+) 54...Kf7 (better 54...Rf8 55.Rb6 Re8 56.Kf3 Ne6–+) 55.Rb7 Kf8 56.Ra7? (56.Rb6 Rf7 57.Rg6 Re7 58.Kd5 h4–+) 56...Ne8 (better 56...Ne6!? 57.Ra8 Ke7 58.Ra7 Kd8 59.Ra8 Kc7 60.Ra7 Kb6 61.Ra2–+) 57.Ra6 Kf7 58.Ra7 Kf8 (58...Ke6 59.Ra8 Nd6 60.Ke3–+) 59.Ra6 Ng7 (better 59...Kg7–+) 60.Rg6?? (60.Ra7 Ne6 61.Ra3–+) 60...Kf7?? (60...Rf7 61.Rc6–+) 61.Rh6 (better 61.Rg7 Kf8 62.Kf5 Kg7 63.Ke4+–) 61...Ra5–+ 62.f5 Ra4 (62...h4 63.f6 Ne6 64.g6 Kf6 65.g7 Kg7 66.Re6–/+) 63.Kd3? (63.Ke5 Kg8 64.f6 Ra5 65.Kf4 Ne6 66.Kg3 Rg5 67.Kh4 Rf5 68.Rh5 Rf6–/+) 63...Nf5?? (better 63...Rg4 64.Rf6 Ke8–+) 64.Rh5–/+ Kg6 65.Rh2 Kg5 66.Rg2 Kf6 67.Rf2 Ra3 68.Kc4 Rc3?? (68...Ke5 69.Kb4 Ra1 70.Re2 Kd4 71.Rd2 Ke4 72.Rd8–/+) 69.Kb4?? (69.Kc3 Ke5+=) 69...Ke5?? (better 69...Rc1–/+) 70.Kc3+= Ke4 71.Re2 (71.Re2 Kd5 72.Re8+=) 1–0. BeepBeepImAJeep (2725) – Hydrozoa (2490), lichess.org, 2020.

7.Bd3 Nf6 8.Ne2 Nc6 9.0–0 d5 10.a4 Be6 11.Ba3 Rc8 12.Be7 Qe7 13.Nd2 Na5 14.Re1 Nc4 (14...0–0 15.Rb1=) 15.Nc4 (15.Bc4!? dc4 16.Nf4+–) 15...dc4+= 16.Bc2 0–0 17.Nf4 Qd7 18.Ne6 fe6 19.Qe2 Rfe8 (19...Nd5 20.Qg4+=) 20.Rac1 Nd5 21.Be4 (21.Qh5 g6 22.Qe5 Qc7+=) 21...Nf6 (21...Qa4 22.Qd2=) 22.Bb1 (22.a5 Ne4 23.Qe4 Rc6+=) 22...Re7 (22...Qa4!? 23.Be4 Ne4 24.Qe4 Qc6=+) 23.a5 b6 24.Qe5 (24.ab6 ab6 25.Bf5 Rc6+–) 24...Qd5 (24...ba5 25.Qa5 Qd5 26.Qa3+=) 25.ab6+– ab6 26.Qe3 (26.Qg3 Qh5+–) 26...b5 27.f3 Rd8 28.Be4 Qd6 29.Rb1 Rb8 30.Rb4 Rd7 (30...Ra7 31.Reb1 Ra5 32.Qg5=) 31.Reb1+– e5?? (better 31...Nd5 32.Bd5 Qd5+=) 32.Rb5 (better 32.de5 Nd5 33.ed6 Ne3 34.Kf2 Ng2 35.Kg2 Rd6 36.Rb5+–) 32...Rb5=+ 33.Rb5 ed4 (33...Ne4? 34.Qe4 (worse 34.fe4 ed4 35.cd4 Qd4 36.Qd4 Rd4=+) 34...Ra7 35.de5 Ra1 36.Kf2 Qd2 37.Kg3 Qg5 38.Qg4 Qg4 39.Kg4+–) 34.cd4 Qd4 35.Qd4 Rd4 36.Bf5 c3 37.Rc5 Rd1 38.Kf2 Rd2 39.Kg3 c2?? (better 39...g6 40.Bh3 Rd3=+) 40.Bc2 Kf7 41.Bb3 Kg6 42.Bc2 (42.Rc2 Rd4+–) 42...Kh6 (42...Kf7 43.f4+–) 43.Bf5 (better 43.Rc6!?+–) 43...Nh5= 44.Kh3 Nf4 45.Kg4 Ng2 46.Rc6 g6 47.Be4 Ne3 48.Kf4 Ng2 49.Ke5 Ne3 50.f4 (50.Rc3!? Re2 51.h3=) 50...Ng4=+ (worse 50...Rh2 51.Kd4 Ng4 52.f5=+) 51.Ke6 Nh2 52.f5 Ng4 (better 52...gf5 53.Bf5 Nf3 54.Kf7 Kg5=+) 53.f6?? (53.fg6 hg6 54.Ke7 Kg5=) 53...Nf6?? (better 53...Re2 54.Rc4 Rf2–+) 54.Kf6= Rf2 55.Ke5 Re2 56.Rc7 Kh5 57.Rh7 Kg4 58.Rg7 g5 59.Kd4 Rf2 (59...Kf4 60.Rf7 Kg3 61.Bf5=) 60.Ke3+= Rf4 61.Rg8 Kg3 (better 61...Rf1!?+=) 62.Rg5+– Rg4 63.Rf5 Rh4 64.Rf3 Kg2 65.Rf2 Kg1?? (better 65...Kg3 66.Rg2 Kh3+–) 66.Rg2 Kh1 (66...Kf1 67.Rg3 Re4 68.Ke4 Ke2 69.Rg2 Kd1 70.Ke3 Kc1 71.Kd3 Kb1 72.Kc3 Ka1 73.Kb3 Kb1 74.Rg1) 67.Rg8 (67.Re2 Re4 68.Ke4 Kg1 69.Kf3 Kf1 70.Re5 Kg1 71.Rh5 Kf1 72.Rh1) 67...Kh2+– 68.Bf3 Do you see the mate threat? 68...Rh3?? (68...Rh6 69.Ke4+–) 69.Kf2 (69.Rg2 Kh1 70.Ra2 Kg1 71.Ra1 Kh2 72.Kf2 Rf3 73.Kf3 Kh3 74.Rh1) 69...Rg3+– 70.Rh8 (70.Rh8 Rh3 71.Rf8+–; 70.Rg3?!=) 1–0. BeepBeepImAJeep (2565) – hollinger (2255), lichess.org, 2017.

7.Nf3 d5 8.Bd3 Nc6 9.0–0 Bg4 10.Re1 Nf6 11.h3 Bh5 12.Ba3 0–0 13.Be7 Ne7 14.Nbd2 Re8 15.Qc2 Bg6 16.Ne5 Bd3 17.Qd3 Nc6 18.f4 Qd6 19.a4 Re7 20.a5 Rae8 21.a6 b6 (worse 21...Ne5 A) 22.Re5?! A1) 22...Re5?? 23.fe5 (23.de5?! Qc5 24.Qd4 Nd7 25.ab7 Qb5+–) 23...Qe6 24.ef6+–; A2) 22...b6=; B) 22.de5?! Qc5 23.Kf1 Nh5=; C) 22.fe5 Qb8 23.Nf1+–) 22.Ndf3 Ne4 23.Nc6 (23.c4!? Nf6 24.Rac1=) 23...Qc6–/+ 24.Ne5 Qc7 (24...Qc3!? 25.Rac1 Qb2–/+) 25.Rac1 (25.c4 Nf6 26.Rac1 dc4 27.Rc4 Qd8=) 25...f6 (better 25...Qc8=+) 26.Nf3 (better 26.c4 Nc5 27.Qa3 fe5 28.fe5=) 26...Qf4–+ 27.Rcd1 Nd6 28.Re7 Re7 29.Kf2 (29.Qc2 Nc4–+) 29...Ne4 30.Kg1 Nd6?? (30...Qc7 31.Re1–+) 31.Kf2 h5 32.Re1 (32.h4 f5–+) 32...Ne4 (better 32...Re1 33.Ke1 Ne4–+) 33.Kg1–/+ g5 34.Qe3 (better 34.Re2!?–/+) 34...Qe3–+ 35.Re3 Rc7 36.g4 (36.Kf1 h4–+) 36...Rc3 37.Rc3 Nc3 38.gh5 b5 39.Nd2 Ne2 40.Kf2 Nd4 41.Ke3 Nf5 (41...Nc6 42.Kd3–+) 42.Kd3 Kg7 43.Nb3 (43.Kc3 Kh6–+) 43...Kh6 44.Kc3 Kh5 45.Kb4 Kh4 46.Kb5 Kh3 47.Kc6 g4 48.Kb7 (48.Kd5 Ne7 49.Kd4–+) 48...g3 49.Ka7 (49.Nc1 d4 50.Ka7–+) 49...g2 50.Kb7 g1Q Black intends d4 51.a7 Qa7 (better 51...Qg7 52.Kb6 Qf8–+) 52.Ka7 d4 (52...Ne3 53.Kb6–+) 53.Nd2 (53.Kb6 Kg4 54.Kc5 Kf4–+) 53...Nd6 (better 53...d3!? 54.Kb6 Ng3 55.Kc5–+) 54.Kb6 Nc4 (better 54...d3 55.Kc5 Nf7–+) 55.Kc5?? (better 55.Nc4 d3 56.Kc5=) 55...Nd2–+ 56.Kd4 Nf3 57.Ke3 ½–½. BeepBeepImAJeep (2730) – Mescalero81 (2385), lichess.org, 2020.

7.Nf3 Nf6 8.Bd3 0–0 9.0–0 d5 10.Re1 Re8 11.Bf4 (11.Nbd2 Bg4=) 11...Nc6 12.Nbd2 a6 (12...Bg4 13.Qb3=) 13.Rb1 (13.Ne5 Ne5 14.Be5 Bg4+=) 13...Ng4 (13...b5 14.a4+=) 14.a4 Ra7 (14...b6 15.Qb3+/–) 15.Qc2 h6 (15...Nf6 16.c4+=) 16.Bh7 (16.c4 dc4 17.Qc4 Nf6+=) 16...Kh8 17.Bf5 Nf6 18.Bc8 (18.Ne5 Bf5 19.Qf5 Ne5 20.Be5 Qd7 21.Qd7 Nd7+–) 18...Qc8= 19.Be5 Qd7 (19...Nd7 20.Qd3+=) 20.Bf6 (20.c4 dc4 21.Bf6 Bf6 22.Re8 Qe8 23.Qc4 Qd7=) 20...Bf6 21.Re8 Qe8 22.Nf1 Qd7 23.Ne3 Ne7 24.a5+= Ra8 25.h3 h5 26.Qb3 Rb8 27.c4 dc4+= 28.Qc4 Nc6 29.Qc5 Nd4 30.Nd4 Bd4 31.Qh5 Kg8 32.Rd1 Rd8 33.Qh4 Qd6 34.Kf1 g6 35.Rd3 Kg7 36.Qg5 Qf6= 37.Qf6 ½–½. Melia,Ken – Schulz,Hans_Juergen, TT–05 TSC, 2003.

7.Qg4 =.

5.ed4 Bb6

6.c3 Ne7 7.Bd3 0–0 8.Ne2 Nbc6 9.0–0 d5 10.Nd2 Bg4 11.f3 (11.Re1 Rc8=) 11...Bh5 (11...Bf5 12.Nb3=+) 12.Ng3 (12.Ba3 Re8=) 12...Bg6=+ 13.Bg6 fg6 (13...Ng6 14.Rb1=+) 14.Nb3 Nf5 15.Nf5 Rf5 16.Be3 Qf6 (16...Bc7 17.Qe2=+) 17.Bf2 (17.g4 Re5 18.de5 Be3 19.Kg2 Qe5+–) 17...Re8 18.a4 Na5 (18...Bc7 19.Re1 Rc8 20.Qe2=) 19.Na5= Ba5 20.Rc1 (20.Qb3 Qf7=) 20...a6 (20...Bc7 21.Qb3 Rh5 22.g3=) 21.Qd3 b5 (better 21...Qc6=+) 22.ab5+– ab5 23.Qb5 Bc7?? (better 23...Qd8+–) 24.Qe8+– Qf8 25.Qf8 Kf8 26.c4 Bf4 27.Rcd1 (better 27.Rc2!? dc4 28.Rb1 Ke7+–) 27...dc4 28.d5 c3 29.d6 (better 29.Bc5!? Ke8+–) 29...c2 30.d7 (better 30.Rde1 Rd5 31.Be3 Bd6 32.Re2+–) 30...c1Q (30...cd1R 31.Rd1 Bc7 32.d8Q Bd8 33.Rd8 Ke7+–) 31.d8Q Kf7 32.Rc1 (32.Rd7 Ke6 33.Qe7) 32...Bc1 (32...g5 33.g4 g6 34.Qd7 Kg8 35.gf5 Bd6 36.Rc8 Bf8 37.Qe7 gf5 38.Qf8) 33.Rc1 Re5 (33...Rd5 34.Qd5 Kf6 35.Re1 g5 36.Qe6) 34.Rc7 Ke6 35.Qd7 Kf6 36.Bh4 g5 (36...Rg5 37.Qd6 Kf5 38.Rc5) 37.Qf7 1–0. BeepBeepImAJeep (2625) – Horschtde (1840), lichess.org, 2017.

6.c3 Ne7 7.Nf3 0–0 8.Bd3 Re8 (8...d5 9.0–0=) 9.0–0+= Ng6 10.Nbd2 (10.Bg6 hg6 11.Bg5 f6=) 10...Bc7 (10...d5 11.Bg6 fg6 12.c4=) 11.Nc4 (11.Bg6 hg6 12.d5 Ba5+=) 11...d5= 12.Ne3 Nc6 (12...Nf4 13.Re1=) 13.Re1 (13.Bg6 fg6 14.Qb3 Be6+=) 13...Nf4= 14.Bc2 Qf6?? (14...Be6 15.Rb1 Rb8 16.g3=) 15.Bd2 (better 15.Nd5 Re1 16.Qe1+–) 15...Bh3?? (better 15...Ne7=) 16.gh3+– Nh3 17.Kf1 Nf4 18.Ng4 Qh6?? (18...Qd6+–) 19.Nh6 gh6 20.Ne5! Ne5 Theme: Interference (20...Re5 21.de5) 21.de5 (21.Bf4 Ng6 22.Re8 Re8 23.Bc7 Rc8+–) 21...Be5 (21...Ng6 22.Bh6 Be5 23.Qd5+–) 22.Re5! Re5 Decoy to e5 23.Bf4 Rf5 24.Bf5 Re8 (24...Kg7 25.Qd4 f6 26.Bh6 Kh6 27.Qh4 Kg7 28.Qh7 Kf8 29.Bg6 d4 30.Qf7) 25.Qg4 Kh8 26.Bh6 Rg8 27.Qd4 f6 28.Qf6 Rg7 29.Qg7 1–0. BeepBeepImAJeep (2605) – stadt (1830), lichess.org, 2016.

6.Nf3 d5 7.Bb5 Nc6 (7...Bd7 8.Bd7 Nd7 9.0–0=) 8.0–0+= Nge7 9.Re1 0–0 10.c3 Bg4 (10...Bf5 11.Bg5 Re8 12.Nbd2=) 11.Nbd2 (11.Bd3 Qd7=) 11...Re8 12.Bd3 (12.Qb3 Rc8=) 12...Qd7 (12...Bf5 13.Nb3=) 13.Ba3 (13.Rb1 Rac8=) 13...Bf5 (13...Ng6 14.Qb3=) 14.Bf5 Nf5 15.Qb3 Re1 (15...Rac8 16.Rab1=) 16.Re1 Bc7 17.g3 (17.Bc5 b6 18.Ba3 Rc8=) 17...Rb8 18.Qb5 h6 (18...a6 19.Qd3=) 19.Qb3 (19.c4 Rd8 (< 19...Nfd4 20.Nd4 dc4 21.Bc5+–) 20.cd5 Qd5 21.Qb7 Bb6=) 19...b5 20.Bc5 a6 21.h3 (21.Qa3 Ra8=) 21...a5 22.a3 Nfe7 23.Nh4 Bd6 24.Bd6 Qd6 25.Nhf3 b4 26.ab4 ab4 27.c4 dc4 28.Qc4 Rd8 29.Nb3 Nf5 30.Kg2 Qd7 31.Qb5 Qd5 32.Qd5 Rd5 33.Rc1 Nfe7 34.Rc4 f6 35.Nfd2 Kf7 36.Kf3 f5 37.Ke2 g5 (37...Rd6 38.f3=) ½–½. Luzuriaga,Norberto Horacio – Figiel,Rafal, corr or01–004 E–mail, 2001.

6.c3 d5

7.Bb5 Nc6 8.Ne2 Nf6 9.0–0 0–0 10.Bg5 a6 (10...Bc7 11.Qd2=+) 11.Bd3= Bg4 (11...Bc7 12.Bh4=) 12.Nd2 h6 13.Bh4 g5 14.Bg3 Ne7 (14...Nh5 15.Qb3=) 15.f3 Bf5 16.Qc2 Bd3 17.Qd3 Ng6 18.Bf2 (18.f4!?+–) 18...Re8 19.Rfe1 Rc8 20.Rac1 Qd7 21.Ng3 Nf4 22.Qf5 (better 22.Qb1 Ba5 23.Re8 Re8 24.Nb3=) 22...Qf5–/+ 23.Nf5 Kh7 (23...Ne2!? 24.Re2 Re2–/+) 24.Re8 Re8 25.Re1 (25.Rb1!? Ba5 26.Rb7=+) 25...Re1 26.Be1 Kg6 (better 26...Ne2 27.Kf2 Nc3–/+) 27.Ne3?? (better 27.Ne7 Kg7 28.Nf5 Kh7 29.Kf1=) 27...Ne2–+ 28.Kf1 Nc3 29.Nc2 Nb5 (better 29...Na2!? 30.Nb3 Kf5–+) 30.Nb3–/+ Nd7 31.a4 Nc7 32.a5 Ba5?? (better 32...Ba7–/+) 33.Ba5 (33.Na5!? b5 34.Bg3+–) 33...Nb5 (33...b6 34.Bb4=) 34.Bb4 (34.Bd8 Kf5+–) 34...b6+= 35.Bd2 a5 36.Na5 (36.Ke2 Nb8+=) 36...ba5= 37.Ba5 Nd4?? (better 37...f5=) 38.Nd4+– Nc5 39.Bc3 Nb3?? (39...f5+–) 40.Nb3 d4 (40...h5 41.Nd4+–) 41.Bd4 f5 42.Be3 f4 43.Bf4 (better 43.Bd4 Kh5+–) 43...gf4 44.Nd2 Kf5 45.Ne4 Ke5 46.h3 Kd4 (46...Kf5 47.Kf2+–) 47.Ke2 (47.Ke2 Ke5 48.Nc5+–; 47.Nf6!? Kc4+–) 1–0. BeepBeepImAJeep (2560) – lemfan (1900), lichess.org, 2018.

7.Bd3 Nc6 8.Ne2 Nf6 9.0–0 0–0 10.a4 Re8 11.Be3 Bc7 12.h3 Qd6 The mate threat is Qh2 13.Bf4 Qd7 14.Bc7 Qc7 15.Na3 Be6 16.Nb5 Qd7 17.Nf4 a6 18.Na3 Bf5 19.Nc2 Bd3 20.Qd3 Re4 21.Ne2 Rae8 22.Ng3 Rf4 (22...R4e6 23.Rfe1=+) 23.Ne3 Ne4 24.Rae1 Ng3 25.fg3 Rf1 (25...Rfe4 26.Rf4=+) 26.Rf1= Ne7 27.Ng4 (27.Nf5 Qe6=) 27...Ng6 (27...Qa4 28.Qf3 f5=+) 28.Qf3 Re7 29.h4 f6 (better 29...Re4 30.Nf2 Re6=+) 30.h5+– Nf8 31.h6 g6?? (better 31...f5+–) 32.Nf6 (32.Nf6 Kf7 33.Nd7 Ke8 34.Nf6 Kd8 35.Qd5 Nd7 36.Nd7 Kc7 37.Nc5 Kb8 38.Qd8 Ka7 39.Qe7 Kb6 40.Qb7 Ka5 41.Qa6) 1–0. BeepBeepImAJeep (2685) – DugguVan, lichess.org, 2016.

7.Bd3 Nc6 8.Ne2 Nf6 9.0–0 0–0 10.Bg5 Be6 11.Nd2 h6 12.Bh4 Bc7 13.Nf3 Qd6 (13...Rb8 14.Re1=) 14.Bg3 (better 14.Bf6!? gf6 15.Qd2+–) 14...Qd7= 15.Qc2 Nh5 16.Bc7 Qc7 17.Bh7 Kh8 18.Bf5 Nf4 19.Nf4 Qf4 20.Be6 fe6 21.Rae1 Rae8 22.Re3 g5 (22...Rf6 23.Rfe1+=) 23.Rfe1 Attacks the backward pawn on e6 23...Nd8 (23...Qf6!?+=) 24.h3 Rf6 25.Ne5 Ref8? (25...Qf5 26.Qa4 Qf2 27.Kh1+–) 26.f3 (26.Rf3 Qh4 27.Rf6 Rf6 28.Ng6 Rg6 29.Qg6 g4+–) 26...h5?? (better 26...Rg8+–) 27.Ng6+– Rg6 28.Qg6 Qf7 (28...Rf6 29.Qe8 Rf8 30.Qh5 Kg7 31.Re5+–) 29.Qf7 (better 29.Qh6 Kg8 30.Re5+–) 29...Rf7 30.Re5 Rg7 31.h4 gh4 32.Rh5 Kg8 33.Rh4 Kf7 34.Rf4 Ke7 35.Rf5 Kd6 36.Rf8 Kd7 37.Rd8 (37.Kf2!? Rh7+–) 37...Kd8 38.Re6 Kd7 39.Re3 b5 40.g4 a6 41.Kf2 Kd6 (41...Rh7 42.Kg2+–) 42.Kg3 a5 43.f4 Rc7 44.f5 Re7 (44...b4 45.cb4 ab4+–) 45.Re7 Ke7 46.Kf4 Kf6 47.g5 Kf7 48.Ke5 Ke7 49.Kd5 (49.Kd5 b4 50.cb4 ab4 51.Kc5+–) 1–0. BeepBeepImAJeep (2590) – Lutikov (1825), lichess.org, 2017.

7.Bd3 Ne7 8.Ne2 Nbc6 9.0–0 f6 (9...0–0 10.Nf4=) 10.a4 Bc7 11.Nd2 g5 (11...Bf5!? 12.Bf5 Nf5=) 12.Re1+– Qd6 13.Nf1 Bg4 14.Ba3 Qd7 15.f3 Bh5?? (better 15...Bf5+=) 16.Neg3+– Bg6 17.Bb5 (better 17.Be7 Bd3 18.Ba3 Kf7 19.Qd3 Rac8+–) 17...0–0–0?? (better 17...Bd6+=) 18.Re7!+– Qe7 (18...Ne7 A pinning theme 19.Bd7) 19.Be7 Ne7 20.Qd2 (20.Qe2 Ng8+–) 20...h5 (20...Nc6 21.Bc6 bc6 22.Qe2+–) 21.Bd3 h4 22.Ne2 Bh5 (22...Bd3 23.Qd3 Rhe8 24.Rb1+–) 23.Ne3 g4 (23...h3 24.g4 Bg6 25.Bg6 Ng6 26.Qd3+–) 24.fg4 Bf7 (24...Be8 25.Rf1+–) 25.Nf5 (25.Rf1!? Be8+–) 25...Nf5 26.Bf5 Kb8 27.a5 Rde8 28.a6 b6 29.Nf4 h3 30.g3 (30.g3 Bd6 31.Bg6 Bg6 32.Ng6+–) 1–0. BeepBeepImAJeep (2560) – Gupta_Approach (2350), lichess.org, 2018.

7.Bd3 Nf6 8.Ne2 0–0 9.0–0 Re8 10.Bg5 h6 11.Bh4 Nc6 12.Bg3 (12.Re1 Bc7 13.h3 Be6=) 12...Bg4 13.f3 Be6 14.Nc1? (14.Nd2 Nh5=+) 14...Na5 (better 14...Nd4!? 15.cd4 Bd4 16.Kh1 Ba1–+) 15.Nd2 Rc8 16.Ne2 Bc7 17.Re1 Bg3 18.hg3 Qc7 19.Rc1 a6 20.Nf4 b5 (20...Bd7 21.Re8 Re8 22.c4–/+) 21.Re5 Nd7 22.Nd5 (better 22.Re3!?=+) 22...Qd6–/+ 23.Re6 (23.Ne4 Qa3 24.Re6 Re6–/+ (worse 24...fe6 25.Nb4=+)) 23...Qe6 24.Nf4 Qd6 (24...Qa2?! 25.Ra1 Qb2 26.Ra5 Qc3 27.Ra6=+) 25.Ne4 Qb6 (25...Qa3 26.Rb1–+) 26.Qd2 (26.a4 Nc4 27.Rb1 Qc6–/+) 26...Nf6 27.Qb2 Nc4 28.Bc4 Rc4 29.Nd2 Rcc8 30.Nd3 (30.c4 Qc7–/+) 30...Nd5–+ 31.Ne5?? (better 31.Ne4–+) 31...Re5 32.Ne4 (32.c4 Re2 33.Kf1 Rce8 34.cd5 Qg6–+) 32...Re6 (better 32...Re4!? 33.fe4 Nc3 34.Re1 Qd4 35.Kh2–+) 33.Nc5 Rec6 34.c4 (34.Qf2 Qa5 35.Qb2 Rc5 36.dc5 Rc5–+) 34...Rc5 35.dc5 Qc5 36.Kh2 bc4 37.Qe5 c3 38.a4 (38.Qe4 Qa3 39.Rc2 Nb4–+) 38...c2 (38...Nb4 39.Qe2–+) 39.Qf5 (39.Rc2 Qc2 40.Qd5 Qa4–+) 39...Nb4 40.Qe4 Qc4 41.Qf5 (41.Qb7 Rc5 42.Qb8 Kh7–+) 41...Nd3 42.Rf1 c1Q (better 42...Rc5 43.Qg4 Qg4 44.fg4–+) 43.Rc1 Nc1 44.Qe4 (44.Qe5 Qa4 45.Qf5 Qc2–+) 44...Qe4 45.fe4 Rc4 46.g4 Ra4 47.Kg3 Re4 48.Kf3 Re6 49.g5 Rf6 (better 49...a5–+) 50.gf6 g6 51.Ke3 Kf8 52.Kd2 Ke8 53.Kc3 (53.Kc1 a5 54.Kc2 g5–+) 53...Kd7 54.Kb4 Ke6 55.Ka5 Kf6 56.Kb6 (56.Ka6 Ne2–+) 56...Kg5 57.Ka6 Kg4 58.Kb5 Kg3 59.Kc5 Kg2 60.Kd6 g5 61.Ke7 g4 62.Kf7 g3 (better 62...h5 63.Kg6 h4 64.Kg5–+) 63.Kg6 Kf2 64.Kh5 g2 65.Kh4 (65.Kg6 g1Q 66.Kf6 h5 67.Ke5 Qg3 68.Ke6 h4 69.Kf5 h3 70.Ke6 h2 71.Ke7 Qc7 72.Ke6 h1Q 73.Kf5 Qh5 74.Ke4 Qhe5) 65...g1Q 66.Kh5 Qg5 0–1. BeepBeepImAJeep (2515) – auditor2016 (2335), lichess.org, 2017.

7.Bd3 Nf6 8.Ne2 0–0 9.0–0 Bg4 10.Bg5 Nc6 11.f3 Bh5 12.Nd2 Qd6 13.Bh4 Rfe8 14.Bg3 Qd7 15.Nf4 Bg6 16.Ng6 hg6 17.Nb3 a6 18.a3 Re6 19.a4 Rae8 20.a5 Ba7 21.Kh1 Re3 (21...Nh5 22.Bf2=) 22.Bf2 R3e7 23.Rc1 (23.Re1 Re1 24.Be1 Bb8=) 23...Nh5 (23...Bb8 24.c4=+) 24.c4 dc4 25.Bc4 The passed pawn on d4 will quickly become a dangerous weapon 25...Kh7 (25...Bb8!?=) 26.d5+– Bf2 27.dc6 Qd1 (27...Qc6 28.Bf7!? Qb5 29.Rf2 Rf7 30.g3=) 28.Rcd1+– (worse 28.Rfd1 Ng3 29.hg3 Rh8–/+) 28...Ba7 29.cb7 Rb7 30.Nd2?? (30.Rd6 Reb8 31.g4 Nf4=) 30...Rbe7 (better 30...Ng3! 31.hg3 Rh8 32.Rf2 Bf2 33.Nf1 Kg8 34.Nh2–+) 31.Ba6?? (better 31.g4 Nf4 32.Ba6+–) 31...Nf4?? (better 31...Ng3! 32.hg3 Rh8–+) 32.Ne4+– f5 33.Ng5?? (better 33.Nd6 Rb8 34.g3+–) 33...Kh6+= 34.h4 Re2?? (better 34...Nh5=) 35.Be2 (35.Be2 Ne2 36.Rfe1+–) 1–0. BeepBeepImAJeep (2630) – marcin110987 (2015), lichess.org, 2017.

6.c3 Nf6

7.Bd3 0–0 8.Ne2 Re8 9.0–0 Nc6 10.Bg5 h6 11.Bh4 d5 12.Nd2 Bc7 13.Nf3 (13.Re1 Bh2 14.Kh2 Ng4 15.Kg1 Qh4–/+) 13...Qd6 14.Bg3 Qd7 15.Re1 Bg3 16.Ng3 Qd6 17.Re8 Ne8 18.Qc2 Nf6 19.Re1 Bg4 20.Ne5 Re8 21.Re3 (better 21.Bb5!?=) 21...Ne5–/+ 22.de5 Re5 23.Qd2 Re3 24.Qe3 Qe6 (24...Qa3 25.Qe5 Nd7 26.Qc7–/+) 25.Qa7=+ Qe1 26.Bf1 Qc3 27.Qb7 d4 28.Qb6 d3?? (better 28...Qa1=) 29.Qd8+– Kh7 30.Qd3 Qd3 31.Bd3 g6 32.f3 (32.a4 Kg8+–) 32...Bd7 33.Bc2 Nd5 34.a4 Ne3 (34...f5!?+–) 35.Bb3 f5 (35...Bc6 36.Kf2 Nd5 37.Bd5 Bd5 38.a5+–) 36.a5 (36.Kf2 f4 37.Ne2 Nf5+–) 36...Bb5 37.Kf2 f4 38.Ne2 Nf5 (38...g5 39.g3 Nc4 40.Nd4+–) 39.Nc3 (39.Nf4!? Kg7+–) 39...Ba6 40.Ne4 Nd4 41.Ba4 (41.Nc5 Nb3 42.Nb3 g5+–) 41...Nb5 (41...Ne6 42.Bd1+–) 42.Nc5 (42.Nf6 Kh8 43.Bb5 Bb5+–) 42...Nc3 (42...Nc7 43.Na6 Na6 44.Bb5+–) 43.Na6 Na4 44.Nc7 Nc5 45.a6 Na6 46.Na6 Kg7 47.Nb4 Kf6 48.Nd3 g5 49.h3 (49.g3 fg3 50.Kg3 Kf5+–) 49...h5 50.Ke2 (50.g4!? fg3 51.Kg3 Kf5+–) 50...Kf5 51.Nf2 g4 (51...Ke5+–) 52.hg4 hg4 53.Ng4 Kg5 54.Kd3 Kf5 55.Kd4 Kg5 56.Ke4 Kh4 57.Kf4 Kh5 58.Kf5 Kh4 59.Ne5 Kg3 60.f4 Kg2 61.Kg5 Kg3 62.f5 Kf2 63.f6 Ke1 (63...Ke3 64.f7 Ke2 65.f8Q Ke1 66.Qb4 Kd1 67.Qb2 Ke1 68.Nc4 Kf1 69.Qd2 Kg1 70.Ne3 Kh1 71.Qg2) 64.f7 Kd2 65.f8Q Kd1 (65...Kc2 66.Qc5 Kd2 67.Qc4 Kd1 68.Qd3 Ke1 69.Qe3 Kd1 70.Nf3 Kc2 71.Nd4 Kd1 72.Qd3 Ke1 73.Qe2) 66.Qf3 Kc1 (66...Kc2 67.Qd3 Kb2 68.Nc4 Kc1 69.Qc3 Kd1 70.Qd2) 67.Qg2 (67.Qg2 Kd1 68.Qf2 Kc1 69.Nc4 Kd1 70.Qd2; 67.Qe2 Kb1 68.Nd3 Ka1 69.Qb2) 1–0. BeepBeepImAJeep (2600) – BobbyCarrot (2065), lichess.org, 2016.

7.Bd3 (7.Qe2!? Kf8 8.Nf3+=) 7...0–0= 8.Ne2 Re8 9.0–0 d5 10.Bg5 Nc6 11.Nd2 h6 12.Bh4 Qd6 13.Bg3 Qd8 14.Nf3 (14.Qb3!?=) 14...Bg4 15.Nf4 Ne7 (15...Ne4!? 16.Rc1 Rc8=+) 16.h3= Bf3 (16...Bf5 17.Bb5 Rf8 18.Re1=) 17.Qf3 Ne4 (17...Rc8!?=) 18.Nd5+– Ng3 (18...Nd2 19.Nf6 gf6 20.Qg4 Ng6 21.Bg6 Nf1 22.Bd3 Kf8 23.Bf4+– (worse 23.Bf1 Bc7+–)) 19.Ne7 (19.Nb6 Nf1 20.Na8 Nd2+–) 19...Qe7 (19...Re7!? 20.Qg3 Ba5+=) 20.fg3+– Rac8 21.Rac1 (21.Rf2!?+–) 21...Qe3+= 22.Qe3 (better 22.Kh1!? Qf3 23.gf3+= (worse 23.Rf3 Bd4 24.Rb1 Bb6=+)) 22...Re3=+ 23.Rfd1 Ba5 The backward pawn on c3 becomes a target (better 23...Bd4 24.cd4 Rc1 25.Rc1 Rd3 26.Rc8 Kh7=+) 24.Kf2 Re6 25.c4 Rf6 26.Kg1 Bb6 (26...Bc7 27.Be4+–) 27.c5+– Ba5 28.Bc4 (28.Be4 Rb8+–) 28...Rd8 29.Bb3 Rg6 30.Kh2 Bc7 31.Rc3 b6 32.c6 Rdd6 33.Rf3 (better 33.d5+–) 33...Rc6? (33...Rdf6 34.Rf6 Bg3 35.Kh1 Rf6+–) 34.Rdf1 (better 34.Bf7 Kh7 35.Bg6 Rg6 36.Ra3+–) 34...Kh7 (better 34...Rcf6!?+=) 35.Bf7+– Rgf6 36.Bd5 (36.Bd5 Rcd6 37.Be4 Kg8 38.Rd1+–) 1–0. BeepBeepImAJeep (2650) – jjj333333 (1930), lichess.org, 2017.

7.Bd3 (7.Qe2 Kf8+=) 7...0–0= 8.Ne2 Re8 9.0–0 d5 10.Bg5 h6 11.Bh4 Be6 (11...Bc7 12.Nd2=) 12.Nd2 Nbd7 13.Nf3 (13.Nf4 Qc7 14.Qf3 Rac8=) 13...Bc7 14.Bg3 (14.Rb1 b6=) 14...Bg3 (14...Bg4 15.Re1=+) 15.hg3 a6 16.Nf4 Nf8 17.Re1 Qd6 18.Qc2 b5 19.a4 ba4 20.Qa4 a5 The passed pawn on a5 will quickly become a dangerous weapon 21.Qb5 Bd7 22.Qb3 Re1 23.Ne1 a4 24.Qb2 a3 (24...Rb8 25.Qd2=+) 25.Qb3= Ne6 (25...g5 26.Ne2=) 26.Nc2 (better 26.Ne6!? fe6 27.Nc2+=) 26...Nf4=+ 27.gf4 Qf4 28.Ra3?? (28.Ne3 Qd6=+) 28...Ra3 (better 28...Rb8 29.Qa2 Qc1 30.Kh2 Ng4 31.Kg3 g5–+) 29.Qa3= (worse 29.Na3 Qc1 30.Bf1 Bf5–/+) 29...g6 (29...Qd2 30.Qa8 Be8 31.Nb4=) 30.Ne3 h5? (30...Be6 31.g3 Qf3 32.Qa6=) 31.Qe7 (31.Nd5 Nd5 32.Qa8 Bc8 33.Qc8 Kg7 34.Qc4 Qc1 35.Bf1 Nc3 36.d5+–) 31...Be6 32.Qd8 (32.g3 Qg5+=) 32...Kg7= 33.Bf1?? (33.g3 Qg5=) 33...h4 (better 33...Ne4 34.Nd1 Qd2–+) 34.Qa5 (better 34.Qb6!?=) 34...Ne4–/+ 35.Nd1 (35.Qa2!? Nc3 36.Qd2–/+) 35...Qd2 36.Qa1? (better 36.f3 Ng3 37.Nf2–+) 36...Qe1 37.Qb2 h3 (better 37...Qd1 38.Qe2 Qe2 39.Be2 Nc3–+) 38.Ne3? (better 38.Qe2!? Qe2 39.Be2 hg2 40.Kg2=) 38...Nf2! 39.Qe2 (39.Qf2 h2) 39...Qe2 40.Be2 h2 (better 40...Ne4 41.c4 dc4–/+) 41.Kh2= Ne4 42.c4 dc4 43.d5 (worse 43.Nc4 Nc3 44.Bd3 Nb5–/+) 43...Bd7 44.Bc4 Nd6 45.Bd3 f5 (45...Kf6 46.Kg3=) 46.Nc4 (better 46.Kg3=) 46...Kf6?? (46...Nc4 47.Bc4 Kf6–/+) 47.Nd6+– Ke5 48.Nb7 (48.Nc4 Kd5 49.Nb6 Kd6 50.Nd7 Kd7+–) 48...Kd5 49.Na5 (49.Nd8 Kd4 50.Bc2 Ke3+–) 49...Kd4 (49...g5 50.Nc4 Kd4 51.Nb6+–) 50.Bf1 (50.Bb1 g5+–) 50...Ke3 (50...f4 51.Kg1+–) 51.Nb3 (better 51.Nc4!? Kd4 52.Nd2+–) 51...f4+– 52.Ba6 (52.Nc5 Bc6+=) 52...g5 53.Bb5?? (better 53.Nc5 Bg4 54.Bf1=) 53...g4 (better 53...Bb5 54.Nc5 g4–+) 54.Bd7+– (54.Bd7 g3 55.Kh3+–) 1–0. BeepBeepImAJeep (2715) – JuanCGlez (2560), lichess.org, 2020.

7.Bd3 (7.Qe2 Kf8+=) 7...0–0= 8.Ne2 Re8 9.0–0 d6 10.a4 Bg4 11.f3 Nc6?? (better 11...Be6=) 12.fg4+– Ng4 13.h3 Ne3 (13...Nge5 14.Bc2+–) 14.Be3 (14.Bh7!? Kh7 15.Qd3 Kg8 16.Be3 Rc8+–) 14...Re3 15.Nf4 Qg5 16.Kh1 (16.Qd2 Rae8+–) 16...Rae8 (16...d5 17.Qb3 Rd8+–) 17.Qh5?? (better 17.Na3 d5 18.Nc2+–) 17...Qh5–/+ 18.Nh5 Rd3 19.Nf4 Rde3 20.Nd2? (20.Nd5 Re2=+) 20...Na5?? (better 20...Rc3 21.d5 Nb4–+) 21.Nd5=+ Re2 22.Nf3 h6 23.Nb6 ab6 24.Rab1 Nc4 25.Rb4 d5 26.Rb5 Rd8 27.Ra1 Rc2 28.Rb3 Re8 29.Ne5 Ne5 30.de5 Re5 31.Rb6 Ree2 32.Rg1 Rc3 33.Rb7 Ra3 34.Rd7 Rd2 35.Ra7 d4 36.a5 Rda2 37.Rd7 d3 38.a6 Rb3 39.a7 Kh7 (39...Rba3 40.Rd8 Kh7 41.Rd1–/+) 40.Rd1 (40.Rf1 f6 41.Rf6 Rb1 42.Kh2 Ra7 43.Ra7 d2=) 40...Rbb2 Black prepares d2 (40...Kg6 41.g4–/+) 41.Rg1 (41.R1d3 Rb1 42.Kh2 Rba1 43.Rf7 Ra7 44.Ra7 Ra7=) 41...d2 (41...Kg6!?–/+) 42.Rf7= Rc2 43.Rd7 Kg6 44.Rd1 Kf6 45.R7d2 Rd2 46.Rd2 Ra7 47.Rf2 Kg6 48.Kh2 Kh7 49.Rf3 Ra6 50.Rg3 Ra7 51.h4 Ra6 52.Kh3 Ra7 53.Rg4 Ra6 54.h5 Ra7 55.Rg6 Ra8 56.Rg4 Ra7 57.Rh4 Ra8 (57...g6 58.hg6 Kg6 59.Rg4 Kh7 60.Rb4=) 58.g3 Rb8 59.g4 Rc8 60.g5 (60.Kg3=) 60...Rd8?? (better 60...hg5 61.Rd4 Kh6–+) 61.Rg4 White intends g6 (61.g6 Kg8 62.Ra4 Kf8+–) 61...Re8 (61...g6 62.hg6 Kg6 63.gh6 Kh6 64.Kg3=) 62.Kh4 (62.g6 Kg8+=) 62...Kh8 (62...g6!?=) 63.g6+= Rf8 64.Rf4?? (64.Rd4 Kg8+–) 64...Rg8 (better 64...Rf4 65.Kh3 Rf5–+) 65.Kg4 Rf8?? (better 65...Re8+–) 66.Rf8 1–0. BeepBeepImAJeep (2775) – Crestbook_com (2310), lichess.org, 2019.

7.Bd3 d6 8.Ne2 0–0 9.0–0 Re8 10.Bg5 Nbd7 11.Nd2 h6 12.Bh4 g5 (12...d5 13.Re1+=) 13.Bg3 Nf8 14.Nc4 Bc7 15.Ne3 Nh5 16.Qc2 Ne6 17.Nd5 Bd7 18.f4 Bc6 19.Nc7 Qc7 20.fg5 hg5 21.Bh7 (21.Rf5 Nhg7 22.Rf2 Nh5+=) 21...Kg7 22.Bf5 Nf8 (22...Ng3 23.Ng3 Nf4 24.Bg4+=) 23.Bg4 (23.Rae1 Ng6 24.c4 Ng3 25.Ng3 Re1 26.Re1 Re8 27.Nh5 Kf8+–) 23...Nf6+= 24.Rf6 (24.Qf5 N8h7 25.Bf3 Bd7=+) 24...Kf6 (24...Be4 25.Bd6 Bc2 26.Bc7 Kf6 27.Ng3+=) 25.Rf1 (25.Qf5 Kg7 26.Qg5 Ng6 27.Nf4+–) 25...Kg7=+ 26.Qf5 (better 26.Qd2 f6 27.Bh5=+) 26...Ng6?? (better 26...Nh7–/+) 27.Qf7?? (better 27.Qf6 Kh6 28.Bd6+–) 27…Qf7–+ (27...Qf7 28.Rf7 Kf7 29.Bd6 Bd5–+) 0–1. BeepBeepImAJeep (2750) – Guary1 (2720), lichess.org, 2020.

5.ed4 Be7

6.c3 Nf6 7.Bd3 0–0 8.Ne2 d5 9.0–0 Nc6 10.Bg5 Bd6 11.Nd2 (11.Nf4!? Qc7 12.g3 Bf4 13.Bf4=) 11...Bh2!–/+ 12.Kh1 (12.Kh2 Decoy to h2 12...Ng4 Discovered attack) 12...Bc7 13.Nf3 Qd6 14.Bf4 Qd8 (14...Qd7 15.Qd2–/+) 15.Bc7 (better 15.Bg5=) 15...Qc7–+ 16.Rc1 Bg4 17.Ng3 (17.Nh2 Be2 18.Qe2 Rfe8–/+) 17...Qf4 (17...Rae8 18.Nf5–+) 18.Kg1 (18.Qd2 Qd6–/+) 18...Rae8 19.Qd2 Qd2 20.Nd2 b6 21.Rfe1 Na5 22.f3 Bd7 23.Kf2 Re1 24.Re1 Re8 25.Rh1 h6 26.Ne2 Rc8 27.Nf1 Ne8 (27...Nc4!?–/+) 28.Ne3=+ Be6 29.f4 Nc7 (29...Nf6 30.Kf3=+) 30.g4 (30.f5 Bd7 31.Nf4 Kf8+=) 30...Bd7 (30...Nc4 31.Bc4 dc4 32.f5=+) 31.g5 hg5 32.fg5 g6 (32...Be6 33.Nf4=) 33.Kf3 (33.Nf4 Bc6=) 33...Nc4 (33...Kg7 34.Re1=+) 34.Ng4 (34.Bc4!? dc4 35.d5=) 34...Bg4–/+ 35.Kg4 Ne6 36.Rf1?? (better 36.Rh3–/+) 36...Ne3–+ 37.Kf3 Nf1 38.Ng3 (38.Ba6 Rc7 39.Kg4 Ne3 40.Kh4 Nd1–+) 38...Nd2 (better 38...Ng3 39.c4 dc4 40.Bb1–+) 39.Ke3 Ne4 (39...Nc4 40.Bc4 Rc4 41.Ne2–+) 40.Ne2 (40.Be4 Rc3 41.Bd3 Ra3–+) 40...N4g5 (40...Nc3 41.Nf4 Ng5 42.Bf1–+) 41.Kd2 f5 42.Kc2 f4 43.Bg6 (43.Ba6 Rc7 44.Bd3 f3–+) 43...f3 44.Ng3 f2 (44...Nd4 45.Kd2 Nb5 46.Bd3 Nc3 47.Nf5–+) 45.Nf1 (45.Kb3 Nf4 46.Bf5 Re8–+) 45...Ne4 (better 45...Nd4 46.Kd2 Nb5 47.Bd3 Nc3 48.Ke3–+) 46.c4 (46.c4 Rc4 47.Kd1–+; 46.Be4 de4 47.Kd2–+). BeepBeepImAJeep (2765) – Nimrod64 (2350), lichess.org, 2016.

6.c3 Nf6 7.Bd3 d5 8.Ne2 0–0 9.0–0 Nc6 10.Bf4 Bg4 11.f3 Bh5 12.Nd2 Bg6 13.Qc2 Rc8 14.Bg6 hg6 15.Qd3 b6 16.Bg3 Na5 17.Rfe1 Nh5 18.Bf2 (18.Be5 Nc6=) 18...Bg5 19.Ng3 (19.Be3 Re8 20.Bg5 Qg5=+) 19...Nf4=+ 20.Qf1? (20.Qc2!?=+) 20...Rc3 (20...Ng2 21.Kg2 Bd2 22.Red1–+) 21.Nb3 Nc4 22.Kh1 Nd3 23.Ne2? (23.Re2 Re8–+) 23...Ne1 (better 23...Rc2–+) 24.Nc3 Nc2 25.Rd1? (better 25.Rb1–+) 25...Nb2?? (25...N2e3 26.Be3 Ne3 27.Qf2 Nd1 28.Nd1–+) 26.Re1?? (26.Rb1 Nc4 27.Rd1–+) 26...Ne1–+ 27.Be1 Nc4 (27...Re8 28.Bg3 Bh4 29.Bh4 Qh4 30.g3–+) 28.Bg3 Re8 29.h3 a5 30.a4 (30.Kh2 Qd7–+) 30...Bh4 31.Bh2 (31.Bh4 Qh4 32.Ne2 Re3–+) 31...Ne3 (better 31...Re1 32.Qe1 Be1–+) 32.Qd3 (32.Qb5 Ng2! 33.Qd5 Qc8–+) 32...Qe7 (better 32...Ng2 33.Be5 Ne1 34.Qf1–+) 33.Qd2 (33.Be5 Qg5 34.Qe2 Rc8–+) 33...Nf5 (33...Nf1 34.Nd5 Qd8 35.Qf4–+) 34.Be5 (34.g4 Qe1 35.Qe1 Re1 36.Bg1 Ng3 37.Kg2 Ne2 38.Ne2 Re2 39.Kf1 Re1 40.Kg2 Rb1 41.Na5 ba5–+) 34...f6 (34...Ng3 35.Kg1 Qb4 36.Ne4 Qb3 37.Bg3 Re4 38.Kh2–+) 35.Bf4 (35.g4 Qa3 36.Qc2 Ne3 37.Qg6 Re7–+ (37...fe5?! 38.Qe8 Kh7 39.Qh5 Kg8 40.Qe5=; 37...Re5?! 38.de5 fe5 39.Qe6 Kf8 40.Qc8 Kf7 41.Qb7 Qe7 42.Qb6–/+)) 35...Qe1 (better 35...Ng3!? 36.Bg3 Bg3 37.Ne4 de4 38.Qe3 ef3 39.Qe7 Re7 40.gf3–+) 36.Qe1 Re1 (36...Be1?! 37.Nd5 Bf2 38.Kh2–+) 37.Kh2 Rb1 (better 37...g5 38.Bc7 Re3 39.Nd5 Rb3 40.Nb6 Nd4–+) 38.Nb1+– Nd4 (38...Bf2 39.Nc3 g5+–) 39.Nd4 g5 (39...Bf2 40.Nb5 d4 41.N1a3+–) 40.Bc7 Be1 41.Nf5 (41.Bb6 Bb4+–) 41...Kh7 (41...Kf7 42.Bb6 g6 43.Nd6 Ke6 44.Nb7+–) 42.Ne7 (better 42.Bb6 g4+–) 42...g6 (42...d4 43.Bb6 d3 44.Nc6+–) 43.Nd5 f5 44.Nf6 (44.Bb6!? Kg7+–) 44...Kh6 45.Nd7 f4 (45...Kh5 46.g4 Kh6 47.Nb6+–) 46.Bb6 Bg3 (46...Kg7 47.Ne5+–) 47.Kh1 Kh5 (47...Be1 48.Na3+–) 48.Ba5 Kh4 49.Bd2 g4 50.fg4 g5 51.Be1 (51.Ne5 Bf2 52.Nf3 Kg3 53.Nc3 Bd4 54.Ne4) 51...f3 (51...Be1 52.Kh2 Bg3 53.Kg1+–) 52.Bg3 (52.Nd2 fg2 53.Kg2 Be1 54.Nf3) 52...Kg3+– 53.gf3 Kf3 54.Nf6 (better 54.a5 Ke4 55.a6 Kd5+–) 54...Kg3 55.Nh5 (55.Nc3 Kf3+–) 55...Kh4 56.Nf4! Kg3 (56...gf4 57.a5) 57.Kg1 (better 57.Nd5 Kh3 58.Nf6 Kg3+–) 57...Kh4 58.Kg2 (better 58.Nd3 Kg3 59.a5+–) 58...gf4 59.Kf3 (59.Kf3 Kg5 60.a5+–) 1–0. BeepBeepImAJeep (2565) – ZB_IC (2100), lichess.org, 2017.

6.c3 Nf6 7.Bd3 d5 8.Ne2 0–0 9.0–0 h6 10.Nd2 Bg4 11.f3 Be6 12.Nf4 Nc6 (12...Bc8 13.Re1=) 13.Bb2 (13.Ne6!? fe6 14.Qe2+=) 13...Bd7 14.a4 Bd6 15.Ne2 a6 (15...Re8 16.Ba3 Ba3 17.Ra3=+) 16.Ng3 (16.Ba3 Ba3 17.Ra3 Qe7=+) 16...Qc7–/+ 17.Qe1 Rae8 18.Qf2 Bf4 19.Rfe1 Kh8 (19...Na5 20.Ngf1–/+) 20.Ndf1 Bd6 21.c4? (21.Ne3 Re7=+) 21...dc4 (better 21...Nb4!? 22.Bb1 Re1 (worse 22...Qc4 23.Rc1 Nd3 24.Rc4 Nf2 25.Rc1+=) 23.Qe1 Re8–+) 22.Bc4=+ Bf4 (22...Nd4 23.Bd4 (23.Qd4?? Bc5 24.Re8 Bd4 25.Bd4 Ne8–+) 23...Qc4 24.Rec1=+) 23.Ba3 Rg8 (better 23...Re1 24.Re1 Bd6=) 24.d5?? (better 24.Bf7 Re1 25.Re1+– (worse 25.Qe1 Nd4 26.Qf2 Nc2–/+)) 24...Ne5 25.Be2 Nd5 26.Bc1 Bc1 27.Rac1 Qd6 28.Rcd1 Qc6 29.Rc1 (better 29.Qd4 Nf6 30.f4–/+) 29...Qd6?? (better 29...Qa4!? 30.Ne4 Nf4–+) 30.Red1 (30.Rcd1!?=) 30...Qe6 31.Bc4 Nc4 32.Rc4 Bc6 33.Re4 Qg6 34.Red4 Rd8 (34...Nc3 35.Ra1–/+) 35.Qd2 Rde8 (better 35...Rd7–/+) 36.Rd5+= Bd5 37.Qd5 Qb6 38.Qd4 Qg6 (38...Qd4 39.Rd4 Rd8 40.Rb4+=) 39.Qd3 (39.Ne4 Re7+–) 39...Rd8 (39...Qb6!? 40.Kh1 Rd8+=) 40.Qg6+– fg6 41.Rb1 Rd7 42.Ne4 Rgd8 (42...b5 43.ab5 Rb8 44.Nc3+–) 43.Ne3 (43.Nc5 Rd1 44.Rd1 Rd1 45.Nb7 Rc1+–) 43...Rd3 44.Kf2 Rc8 (44...Ra3!?+–) 45.Rb7+– Ra3 46.Nd5 (46.Rb4 Rc1+–) 46...Rc2 (46...Ra4 47.Kg3+–) 47.Kg3 Ra4 (better 47...Raa2 48.Ne3 Rc1+–) 48.Nf4 (48.Ndf6 Rac4 49.Rb8 Rc8+–) 48...Rc8? (better 48...g5 49.Nd5 Raa2+=) 49.Ng6+– Kh7 50.Nf4 Threatening mate... how? 50...Ra5?? (50...Rc6 51.Kh3+–) 51.Ne6 (51.Nf6! Kh8 52.Ng6) 51...Rg8 (51...Kh8+–) 52.Nf6 Kh8 53.Ng8 Kg8 54.Nf4 (better 54.Rg7!? Kh8+–) 54...Rf5 (54...Rg5 55.Kf2+–) 55.Ra7 Rf6 56.Ra8 Kh7 (56...Kf7+–) 57.Ra7 (57.h4 g5 58.Ra7 Kg8 59.hg5 hg5+–) 57...Kg8 58.Nd3 Kh7 59.Kf2 h5 60.Ke3 (60.Nc5 Rc6 61.Na6 Rc2 62.Kg3 Ra2+–) 60...Rg6 (60...Re6 61.Kd4+–) 61.Nf4 Rf6 (61...Rh6 62.Re7+–) 62.Nh5 Re6 63.Kf2 Rh6 64.Ng3 (64.Ng7 Kg8+–) 64...Rg6 (64...Rh2 65.Ra6 g6 66.Ne4+–) 65.Ne4 (better 65.Nf5+–) 65...Rf6 (65...Rc6 66.Ke3+–) 66.h4 (66.Nf6 Kh6 67.Ne8 Kg5 68.h4 Kf4 69.Re7 Kf5 70.g4 Kg6 71.Rg7 Kh6 72.g5 Kh5 73.Kg3 a5 74.Nf6) 66...Re6 (66...Rc6+–) 67.Ng5 Kg6 68.Ne6 Kf6 69.Nf4 (69.Ng7!? Ke5 70.h5 Kd5+–) 69...Ke5 70.Ne2 (70.Ra6 Kd4 71.g4 Kc4+–) 70...Kf5 71.Ra6 g6 72.Ra4 (72.Nc3 Ke5 73.Ke3 g5 74.hg5 Kf5 75.g4 Kg5 76.Ne4 Kh4 77.Rh6) 72...g5 73.Rg4 (better 73.Ra5 Kf6 74.hg5 Ke6+–) 73...Kf6 74.Rg5 Kf7 75.Rg4 Kf8 76.Kg3 Kf7 77.Rf4 Ke6 78.Kg4 (78.Kg4 Ke5 79.h5 Kd6 80.h6 Kc5 81.h7 Kc6 82.Rf5 Kd6 83.h8Q Kd7 84.Rf6 Ke7 85.Qg7 Ke8 86.Rf8) 1–0. BeepBeepImAJeep (2710) – svjaaat (2390), lichess.org, 2020.

6.Bd3 Nc6 7.Nf3 d5 8.0–0 Bg4 9.Be3 Nf6 10.h3 Bh5 11.c3 0–0 12.Nbd2 Qc7 13.Qc2 (13.Re1 Rae8=) 13...Rfd8 (13...Rfc8 14.Bf5 Bg6 15.Bg6 fg6 16.Qb2=) 14.Rfe1 Bg6 15.Bg6 hg6 (15...fg6 16.c4+=) 16.Rab1 Rac8 17.Qb2 (17.Bg5 Bd6+=) 17...b6 (17...Na5 18.Bg5+=) 18.Rbc1 Bd6 19.c4 Re8 20.c5 (20.a3 Qd7+=) 20...bc5 21.dc5 Bf8 (21...Bf4 22.Bf4 Qf4 23.Re8 Re8 24.Nb3=) 22.a3 Rb8 23.Qc3 Rb5 24.Nd4 Nd4 25.Bd4 (< 25.Qd4 Rc5 26.Nf3 Rc1 27.Rc1 Qa5=+) 25...Re1 26.Re1 Qc6 27.Qc2 (27.Rc1 a6+=) 27...Bd6 (< 27...Bc5 28.Rc1 Nd7 29.Nb3 Rb3 30.Qb3+/–) 28.Nb3 Ne4 29.Be3 Rb8 (29...Be5 30.f3 Nd6 31.Qd3=) 30.Rc1 (30.f3 Ng3+=) 30...Be5 31.Nd4 Qc5 32.Qc5 Nc5 33.Nc6 Nd3 34.Rd1 ½–½. Erlandsson,Harry – Hjortstam,Kurt, email 3GMM½–08, 1998.

6.Bd3 d5 7.Ne2 Nf6 8.0–0 Nc6 9.c3 0–0 10.Nd2 Bg4 (10...Re8 11.Re1=+) 11.f3 (11.h3 Bh5=) 11...Be6 12.f4 Qc7 13.Nf3 Ne4 14.Be4 (14.Ng5!?=) 14...de4–/+ 15.Ng5 Bd5 16.f5 h6 17.Nh3 Bc4 (17...Rfe8 18.Nef4 Bc4 19.Re1–/+) 18.Rf4 (18.f6 Bf6 19.Bh6 Rfe8–/+) 18...Bd6 19.Rg4 (19.Re4 Rae8 20.Re8 Bh2 21.Kh1 Re8–/+) 19...Bh2–+ 20.Kh1 h5 (20...Ne7 21.f6 Nf5 22.Nhf4 Bf4 23.Bf4–/+) 21.Rg5 (21.Re4 Rfe8 22.Re8 Re8–/+) 21...Rfe8 (21...Bd6 22.Bf4–/+) 22.f6 g6 23.Nef4 Bf4 24.Nf4 Qd6 25.Ng6 fg6 26.Qh5 Qf6 (26...Kf7 27.Qg6 Ke6 28.Qf5 Kf7 29.Rg7 Kf8 30.Qh7 Qh2 31.Kh2 Ne7 32.Bh6 e3 33.Re7) 27.Rg6 Qg6 (27...Kf7 28.Rh6 Ke6 29.Qg4 (29.Rf6?! Kf6 30.Bg5 Ke6 31.Qg4 Kd6+–) 29...Kf7 30.Rh7 (30.Rf6?! Kf6 31.Rb1 Rab8+–) 30...Kf8 31.Bh6 Qh6 32.Rh6+–) 28.Qg6 Kf8 (28...Kh8 29.Bg5 Re6 30.Bf6 Rf6 31.Qf6 Kg8 32.d5+–) 29.Ba3 (29...Re7 30.d5+–) 1–0. Labahn,Wolfgang – Merten,Rainer, corr KGP–Z–03, 1990.

6.Bd3 d5 7.Nf3 Nc6 8.0–0 Bg4 9.c3 Nf6 10.h3 Bh5 11.Qb3 (11.Bg5 0–0=) 11...Qc7 (11...Bf3 12.Qb7 Rc8 13.gf3=) 12.Ne5 0–0 13.f4 Bg6 (13...Na5 14.Qc2 Ne4 15.Be4 de4 16.Qe4+=) 14.f5+= Ne5 15.de5 Bc5 16.Kh2 Nh5 17.Qd5 (17.fg6?? Qe5 18.Bf4 Nf4 19.gh7 Kh8–+) 17...Rad8 18.Qe4 Rfe8 19.fg6 hg6 (19...Re5 20.Bf4 Nf4 21.gf7 Kf8 22.Qh7 Rh5 23.Qg8 Ke7 24.f8Q Rf8 25.Qg7 Kd8 26.Qc7 Kc7=) 20.Rf7 (20.Bc2 Re5 21.Bf4 Nf4 22.Qf4 Bd6+/–) 20...Qf7 (20...Kf7 21.Qg6 Kf8 22.Qf5 Qf7 23.Qf7 Kf7 24.Bc4 Kf8=+) 21.Bc4+/– Re6 22.Be6 (22.Qf3!? b5 A) 23.Be6 Qe6 24.Bf4 Rf8–/+ (24...Nf4?! 25.Qf4 Rd1 26.Qe4 Bg1 27.Kg3–+); B) 23.Bb3 Qf3 24.Be6 Qf7 25.Bf7 Kf7 26.Nd2+/–) 22...Qe6+= 23.Nd2 (23.Qb7?? Qe5 24.Bf4 Qf4 25.g3 Qg3 26.Kh1 Qh3) 23...Qb6? (23...Rd5 24.Nf3 Bd6 25.Qe3 Be5 26.Ne5 Qe5 27.Qe5 Re5 28.c4=) 24.Nf3 (24.Qc4!? Kh8 25.Ne4 Bg1 26.Kh1+–) 24...Rd1+/– 25.Be3?? (better is 25.Qc4 Kh7 26.h4+/–) 25...Be3–+ (25...Ra1?! 26.Qd5 Kh7 27.Bc5= (< 27.Qc5 Qc5 28.Bc5 Ra2–/+)) 26.Qc4 (26.Rd1 Bf4 27.Qf4 Nf4–+) 26...Kh7 (26...Kf8!? 27.Rd1 Bf4 28.Qf4 Nf4 29.Rd4–+) 27.Rd1 Bf4 28.Qf4 Nf4 29.Ng5 Kh6 (better is 29...Kg8!? 30.c4–+) 30.Nf7 Kh5 31.Rd4?? (31.Rd8 g5 32.g4 Kg6 33.Rd6 Kf7 34.Rb6 ab6 35.Kg3–+) 31…g5 (32.Rd2 Qe3–+) 0–1. Katalymov,Boris N – Kupreichik,Viktor D, Minsk, 1971.

6.Bd3 d5 7.Nf3 Nf6 8.0–0 0–0 9.Re1 Nc6 10.Ne5 Re8 11.Nc6 bc6 12.Bf4 Bg4 13.Qd2 c5 14.dc5 Bc5 15.Nc3 Bb4 16.Re8 Qe8 17.Rb1 Ba5 18.Be3 Ne4 19.Be4 de4 20.Bd4 Qd7 21.Qe3 f5 22.h3 Bh5 23.Be5 Bb6 24.Qg3 Bg6 25.Rd1 Qc6 26.Rd6 Qb7 27.a4 Bc5 28.Rd5 Rc8 29.Qg5 Bf8 30.Rd8 Be8 31.Rc8 Qc8 32.Bd4 Bf7 33.Qe3 a6 34.Qf4 Qd7 35.Qe5 Qd6 36.Qd6 Bd6 37.g4 g6 38.Kg2 Be8 39.g5 Bc6 (40.Kf1 Kf7=+) =+. Klaus Behrmann (2275) – Frank Bendig (2150), ChessWorld.net, 2003.

6.Bd3 d5 7.Nf3 Nf6 8.0–0 0–0 9.Ne5 Nc6 10.Re1 Re8 11.Nc6 bc6 12.Bf4 c5 13.dc5 Bc5 14.Nc3 Re1 15.Qe1 Bb7 16.Na4 Bf8 17.Rb1 Bc6 18.Nc3 Bc5 19.Nb5 Ng4 20.Bg3 a6 21.Nc3 h5 22.Nd1 h4 23.Bf4 Qf6 24.Qd2 d4 25.Bg5 Qe6 (26.Bh4 Qa2=+) =+. Klaus Behrmann – freddy007, ChessWorld.net, 2004.

6.Bd3 Nf6 7.Nd2 Nc6 8.Ngf3 Nb4 9.Be2 Nbd5 10.Bb2 0–0 11.0–0 Nf4 12.Re1 d5 13.Bf1 Be6 14.Ne5 Rc8 15.Rb1 Qc7 16.Qf3 Ng6 17.Ng6 hg6 18.Ba3 Ba3 19.Qa3 Qc2 20.Nf3 Rc3 (20...Bg4 21.Ne5+=) 21.Qb4 (21.Qa7!? Ne4 22.Be2+=) 21...Rc7= 22.Qa3 Ne4 (22...Rfc8 23.Rb2 (23.Qa7? Ne4–+) 23...Rc3 24.Qb4+= (worse 24.Rc2 Ra3 25.Rb2 Ne4–/+)) 23.Rb2 Rcc8?? (better 23...Qc3 24.Rb3 Qc2=) 24.Rc2+– Rc2 25.Qa7 Rf2 26.Be2 Bc8 (26...Rc8 27.Qb7 Rc2 28.Qb8 Rc8 29.Qb2+–) 27.Qa3 Bg4 28.Qe7 Ra8 (28...Rb8 29.h3 Be6 30.Bd3 Ra2 31.Be4 de4 32.Ng5+–) 29.a4 Be6 30.a5 Rb8 31.Ng5 Rf6 32.Ne4 de4 33.Rb1 Rf8 34.Rb7 Rc8 35.Rc7 Rb8 36.h3 Kh7 (36...Rb2 37.d5! Bf5 38.Bc4+–) 37.a6 Rb1 38.Kh2 Rb8 39.a7 Ra8 40.Rb7 1–0. Migliorini,Roberto (1895) – Jacon,Marcel (1740), FICGS, 2010.

6.Bd3 Nf6 7.Ne2 d5 8.0–0 0–0 9.c3 Nc6 10.Bf4 Bd6 11.Nd2 Qc7 12.Bg3 Bd7 13.a4 Rfe8 14.c4 (14.Bd6 Qd6 15.Re1 Ng4=) 14...Bg3=+ 15.hg3 (15.fg3 dc4 16.Bc4 Re7=+) 15...dc4 (15...Nb4 16.Qb3 Nd3 17.Qd3 dc4 18.Nc4–/+) 16.Nc4 Rad8 17.Rc1 (17.Ne3 Be6–/+) 17...a6 (17...Bg4 18.f3 Nd4 19.Nd4–+) 18.Nf4 (18.Re1 Nb4 19.Bb1 b5=+) 18...Bg4 (18...Nd4!? 19.Bh7 Kh7 20.Qd4 Ba4–/+) 19.f3=+ Bc8 20.Ne5 Qb6 (worse 20...Rd4 21.Nc6 Rd3 22.Qd3 bc6 23.Rfe1+=) 21.Nc6 bc6 22.Ne2 Nd5 23.Qd2 Qb3 24.a5 Re3 (24...Qb4 25.Rfd1=+) 25.Bc4 Qa3 26.Kf2 (26.Bd5 A) worse 26...Rd5 27.Nc3 (27.Rc6?! Re8+=) 27...Rc3 28.Qc3 Qc3 29.Rc3+–; B) 26...cd5 27.Rc5 Ree8=) 26...Ree8 27.Rfe1 Ne3 28.Rc3? (28.Bd3 Qd6=) 28...Nc4 (better 28...Qa5!? 29.Qc1 Nc4 30.Rc4 Bd7–/+) 29.Rc4=+ Qd6 30.Qf4 Be6 (30...Qe6!? 31.Qc1 Bd7=+) 31.Qd6= Rd6 32.Rb4 (32.Nf4 Kf8 33.Rb4 Bc8+=) 32...Red8 Attacking the isolated pawn on d4 (32...Rd5 33.Ra4=+) 33.Rb6 (33.Rc1 Rd5+=) 33...Bc4= 34.Nf4 Bb5 35.d5 (better 35.Re4=) 35...cd5–/+ 36.Rb7 g5 37.Nh5 h6 (37...d4 38.Rd1–+) 38.Ree7–/+ Be8 39.Rb6 Rb6 (39...Kf8!? 40.Ra7 Bb5–/+) 40.ab6=+ Rb8?? (40...Kf8!? 41.Rc7 Bd7=+) 41.b7 (better 41.Re8 Re8 42.Nf6 Kf8 43.Ne8 Ke8 44.b7+–) 41...Kf8? (better 41...Bc6 42.Rc7 Bb7 43.Nf6 Kg7+=) 42.Rc7+– f5 43.Nf6 Bf7 (43...d4+–) 44.Rc8 (better 44.Nd7 Kg7 45.Nb8 h5+–) 44...Ke7 45.Rb8 Kf6 46.Rc8 Ke5 47.b8Q (47.Rc6 Bg8 48.b8Q Kd4 49.Qb6 Kd3 50.Qe3) 47...Kd4 (47...Kf6 48.Qd6 Be6 49.Rf8 Kg7 50.Qe7 Kg6 51.Qe6 Kh5 52.Qe8) 48.Qb4 (48.Qb2 Kd3 49.Qc3) 48...Ke5 49.Rc7 (49.Qe7 Be6 50.Qg7 Kd6 51.Qc7) 49...Kf6 (49...Be6 50.f4 Kf6 51.Qe7 Kg6 52.Qe6 Kh5 53.Qe8 Kg4 54.Qe2) 50.Qe7 Kg6 (50...Kg7 51.Qf7 Kh8 52.Qe8) 51.Qf7 1–0. BeepBeepImAJeep – MRHZ (2220), lichess.org, 2017.

6.Bd3 Nf6 7.Nf3 0–0 8.0–0 d5 9.Re1 Nc6 10.Nbd2 Re8 11.Bb2 Nb4 12.Bb5 Bd7 13.Bd7 Qd7 14.a3 Nc6 15.c4 Bd6 16.Ne5 Qf5 17.Rb1 Rad8 18.Qf3 Qe6 19.Bc3 Be5 20.de5 d4 21.Bb4 Ng4 22.Qg3 b6 23.f4 Nb4 24.ab4 Ne3 25.Rbc1 Rc8 26.Ne4 Red8 27.c5 bc5 28.bc5 Rb8 29.c6 Rb2 30.c7 Rc8 31.Nd6 Rg2 32.Qg2 Ng2 33.f5 Qd7 34.Nc8 Qc8 35.Kg2 Kf8 36.Red1 1–0. Milde,Lars (1725) – Rushton,Darren (1700), TSC, 2001.

6.Bd3 Nf6 7.Nf3 d5 8.0–0 0–0 9.Re1 Nc6 10.Nbd2 Re8 11.Rb1 Qc7 12.c3 Bg4 13.h3 Bh5 14.Qa4 Bd6 15.Bb2 Rad8 16.c4 Nb4 17.Re8 Re8 18.Bh7 Kh7 19.c5 Bg6 20.cd6 Qd6 21.Re1 Re1 22.Ne1 Nc6 23.Ndf3 Qc7 24.Qa3 Qa5 25.Qb3 Ne4 26.a3 Nd6 27.a4 Be4 28.Bc3 Qd8 29.Ne5 Qg5 (30.Nc6 bc6=) =. Klaus_Behrmann – marekt, ChessWorld.net, 2003.

6.Nf3 d5 7.Bb5 Bd7 8.Bd7 Nd7 =.

6.Nf3 d5 7.Nc3 Nf6 8.Bd3 Nc6 9.Rb1 Bb4 10.Bd2 Bg4 11.0–0 0–0 12.Ne2 Bd2 13.Qd2 Bf3 14.gf3 Qc7 15.Qg5 Rae8 16.Kh1 Kh8 17.Rg1 Rg8 18.Rg3 Qd7 19.Qh4 Qe7 20.Rh3 g6 21.a4 b6 22.Nf4 Rg7 (22...Nd4?? 23.Nd5 Nf3 24.Qf6 Qf6 25.Nf6+–) 23.Ne2 Nh5 24.Qe7 Re7 25.Rh4 Rg8 26.c4 dc4 27.Bc4 Rd8 28.Rc1 Nf6 29.Bb5 Nb4 30.Ng3 Kg7 31.Rg1 Rc7 32.Nf5 Kf8 33.Ne3 h5 34.Rg5 a6 35.Bc4 Nc2 36.Ba6 Nd4 37.Rg3 Rc5 38.Bf1 g5 39.Rhh3 Ra8 40.Rg1 Ra4 41.Rhg3 h4 42.Rg5 Nf3 43.Rc5 bc5 (43...Ng1? 44.Rc6 Nh3 45.Rf6+–) 44.Bb5 Rb4 (44...Ng1?! 45.Ba4 Ne2 46.Kg2–/+) 45.Be2 Ng1 46.Kg1 Ne4 47.Bd3 Nd2 48.Kg2 c4 49.Bc2 c3 50.Bd3 Kg7 51.h3 Kh6 52.Bf5 Rb2 53.Bd3 Kg5 54.Nc2 Nb3 55.Ne1 Nd4 56.Bh7 f5 57.Nd3 c2 58.Bg8 Rb1 59.f4 Kf6 60.Bc4 Rd1 61.Nc1 Rc1 62.Bd3 Rg1! 63.Kf2 c1Q 64.Be2 Nc2 65.Kf3 Qe3 0–1. Hiarcs 6 – Fritz 5, 1999.

6.Nf3 d5 7.c4 Nf6 8.Nc3 0–0 9.Bd3 (9.Qb3 dc4 10.Bc4 Nc6=+) 9...Bg4 (9...dc4 10.Bc4 Bg4 11.0–0=+) 10.0–0 Nc6 11.Be3 Re8 (11...Nb4 12.Nd5 Nfd5 13.cd5 Bf3 14.gf3 Nd3 15.Qd3 Qd5 16.Qe4–/+) 12.h3 Bh5 (12...dc4 13.Bc4 Bh5 14.g4=) 13.g4 (13.c5 Qa5 14.Rc1 Rad8=) 13...dc4 (13...Bg6 14.Bg6 hg6 15.g5=) 14.Bc4 Bg6 15.d5 (15.Nh4 Na5 16.Bb5 Rf8=) 15...Nb4 16.Rc1 Rc8 17.Bb5 Rf8 18.Ne5 Nbd5 (18...Ne4 19.Ng6 Nc3 20.Rc3 Rc3 21.Nf8 Bf8 A) < 22.Ba7 Rh3 (22...Na2?! 23.Be3=+; < 22...Qd5 23.Qd5 Nd5 24.Rd1+=; 22...Nd5?! 23.Be3=) 23.Kg2 Ra3–+; B) 22.Qd4=+) 19.Nd5= Qd5 20.Qd5 Nd5 21.Ng6 hg6 (< 21...fg6 22.Bc4 (22.Ba7?! Nc3 23.a4 Ba3=) 22...Rc4 23.Rc4+/–) 22.Ba7 Ra8 (22...Nc3 23.a4=) 23.Bc4 Ra7 24.Bd5 Rd8 25.Rfe1 (25.Rc7 Rd5 26.Re7 Ra2 27.Rb7 Rdd2=) 25...b5 26.Rcd1 Kf8 27.Re2 ½–½. Sawamura,Tetsushi – Boettcher,Fred, IECG, 2001.

6.Nf3 d5 7.Bd3 Nf6 8.0–0 0–0 9.c3 (9.h3) 9...Nc6 10.Qc2 h6 11.Re1 Be6 12.Bf4 Bd6 13.Be5 Be7 14.h4 Ne5 15.Ne5 Ng4 16.Ng4 Bg4 17.g3 Bf3 18.Nd2 Bg4 19.Rab1 Bh4? (19...Qd7 20.Re3) 20.gh4 Qh4 21.Re5 Rae8 22.Rbe1 Re5 23.Re5 Be6 24.Nf1 g5 25.Bf5 Kg7 26.Ng3 Qf4?? (26...Kf6 27.Qe2) 27.Nh5 1–0. Wall,Bill – Guest520483, playchess.com, 2012.

6.Nf3 Nf6 7.Bd3 0–0 8.0–0 d5 9.h3 Nc6 10.Re1 Re8 11.a3 h6 12.Nc3 Be6 13.Bf4 Rc8 14.Ne2 Na5 15.Qb1 Ne4 16.Ng3 g5 17.Bd2 (17.Ne4? de4 18.Be4 gf4–+) 17...Nd2 18.Nd2 Qc7 19.Nh5 Qb6 (19...g4 20.Bb5 Nc6 21.c4=) 20.Qd1 (better is 20.Qb6 ab6 21.Ng3+=) 20...Qd4–/+ 21.Nf3 Qh8 22.Rb1 Bf6 (22...Ba3 23.Nd4 Bc5 24.Nf5–/+) 23.g4 (23.Nf6!? Qf6 24.Nd4+=) 23...b6 24.Ba6 Rcd8 25.Qd3 Rd6 26.c4 Red8 27.cd5 Rd5 ½–½. Vasiukov,E (2465) – Hecht,HJ (2380), TCh–Eur Seniors, Dresden GER, 2010.

6.Nf3 Nf6 7.Be2 0–0 8.0–0 d5 9.Nbd2 Nc6 10.c4 (10.Re1 Ne4 11.Bb2 Bb4=+) 10...b6 (10...Re8 11.Re1=) 11.Bb2 (11.Re1 Re8=) 11...Be6 12.Ne5 Rc8 13.Bf3 (13.Qa4 Ne5 14.de5 Nd7=) 13...Na5 14.cd5 Bd5 15.Re1 Bf3 (15...Re8 16.Bd5 Qd5 17.Qa4=) 16.Ndf3 Qd5 (16...Bb4 17.Re2=) 17.Qa4 Rfd8 (17...Bd6 18.Rac1=) ½–½. Krasny,Henryk Jan – Benhassine, corr 3GMM–31, 1997.

6.g3 Nf6 (6...d5 7.Ne2=+) 7.Bg2 d5 8.Ne2 Nc6 9.0–0 0–0 10.c3 (10.Nbc3 Bg4=) 10...Bf5 (10...h5 11.Bg5=) 11.Nd2 (11.Bg5 Bg4=+) 11...Rc8 (11...Bd6 12.Re1–/+) 12.Re1 (12.Nf4!?–/+) 12...Nb4! 13.Nf1 (13.cb4 Bc2 Combination) 13...Nc2 (13...Nd3 14.Ne3 Ne1 15.Qe1–+) 14.Ne3 (14.Bh3 Be4 (14...Na1? 15.Bf5 Rc6 16.Bf4+–; 14...Bh3?! 15.Qc2 Re8 16.Bg5–/+) 15.Nd2 Bg6 16.Bc8 Qc8–+) 14...Ne1 15.Qe1 Be4 16.f3 Bg6 (16...Bd3–+) 17.g4 (better 17.Nf4–+) 17...Re8 18.Bd2 (18.Qd2 h6 19.h4 Qd6–+) 18...Ba3 (18...Bd6 19.Qf2–+) 19.Qf2 Bd6 20.h4 (20.g5 Nh5 21.Nd5 Bh2 22.Kh2 Qd5–+) 20...Bd3 (20...Qa5 21.h5 Bd3 22.Nc1–+) 21.Nc1 (21.Re1 Qd7–+) 21...Ba6 (21...Bb5 22.Nf5 Ba3 23.Bf1 Bf1 24.Qf1–+) 22.Nf5 Bb8 23.h5 Rc6 (23...g6 24.Nh6 Kf8 25.Qh4–+) 24.Qh4 h6 (24...g6 25.Nh6 Kf8 26.Bg5–+) 25.g5 Nh7 26.g6 (26.f4 Rb6–+) 26...Ng5 (worse 26...fg6 27.Qd8 Rd8 28.Ne7 Kf7 29.Nc6 bc6 30.hg6 Kg6 31.Nb3–+) 27.f4 (27.gf7 Kf7 28.Qg4–+) 27...Ne6 (better 27...fg6!? 28.hg6 Rf8 29.Nh6 gh6 30.fg5 Rg6–+) 28.gf7–/+ Kf7 29.Qg4 Bc4 30.Nb3 Qf6 (better 30...Kf8 31.Qg6 Qd7–/+) 31.Ne3? (better 31.Na5!? Be2 32.Qe2 Qf5 33.Nc6 bc6 34.Qf3=+) 31...Qf4–+ 32.Qg6? (better 32.Qf4 Nf4 33.Na5–+) 32...Kf8 33.Nf5 (33.Ng4 Qg3 34.Qf5 Ke7–+) 33...Qh2 34.Kf2 Bd3 (34...Re7 35.Rh1 Ng5 36.Rh2 Rg6 37.hg6 Re2 38.Kg1 Bh2 39.Kh2 Nf3 40.Kh3 Nd2 41.Nc5–+) 35.Rh1 Qc7 36.Bd5 (36.Re1 Re7! 37.Ne7 Bg6 38.Ng6 Kg8 39.Re3–+) 36...Nf4 (better 36...Nd4 37.Bc6 Re2 38.Kg1 Bf5 39.Nd4 Bg6 40.Ne2 Qc6 41.hg6–+) 37.Qh7 Bf5 (better 37...Re2 38.Kf3 Nd5 39.Qh8 Kf7 40.Qg7 Ke6 41.Nc5 Rc5 42.dc5 Qg7 43.Ng7 Kf7 44.c4 Bc4 45.Bh6 Ra2 46.Nf5 Be2 47.Ke4 Nc3 48.Kd4–+) 38.Qg8 Ke7 39.Re1 (39.Qg7 Kd8 40.Qc7 Bc7 41.Bc6 bc6 42.Bf4 Bf4–+) 39...Re6 40.Qg7 Kd8 41.Qc7 Bc7 42.Be6 Nd3 (42...Nd3 43.Kf1 Be6–+ (43...Re6?! 44.Re6 Be6 45.Bh6–+); 42...Ne6?! 43.d5 Nf4 44.Re8 Ke8 45.Kf3 Nd5 46.Bh6 Nc3 47.Nd4–+; worse 42...Re6 43.Re6 Be6 44.Kf3 Nh5 45.Nc5 Ba2 46.Nb7 Ke7 47.Nc5 Bd5 48.Kg4 Nf6 49.Kf5–+) 0–1. Bach,Matthias (2305) – Fries_Nielsen,Jens Ove (2355), Hamburg Germany, HSK IM, 2016.

3.e3 Nc6

4.Ba3 Qa5 5.c3 b6 =.

4.c3 Bc5 5.d4 Bb6 =.

4.d3 Nf6 5.Nf3 Bc5 6.Be2 0–0 7.0–0 d5 8.d4 ed4 9.ed4 Bb6 10.c3 Re8 11.Bd3 Bg4 12.Bg5 h6 13.Bh4 Bc7 (13...g5 14.Bg3=+) 14.Nbd2= Rc8 15.Rc1 (15.h3 Bd7=) 15...Na5 (15...Bf4 16.Rb1 g5 17.Bg3–/+) 16.Bg3 (better 16.h3!? Bd7 17.Qc2=) 16...Bg3–/+ 17.fg3 Re3 (17...Ne4 18.Nb1–/+) 18.Qc2=+ Kh8 (better 18...Bf3 19.Rf3 Qe7=+) 19.Bf5?? (better 19.Ne5 Be6 20.Rf4+=) 19...Rcc3 (19...Rec3 20.Qb2 Rc1 21.Ne5–+) 20.Qc3?? (better 20.Qb1–/+) 20...Rc3–+ 21.Rc3 Bf5 22.Ne5 Be6 23.Ndf3 Qb6 24.Rc5 (24.Re1 Ne4 25.Rcc1 Qb2–+) 24...Nc6 (better 24...Nc4!? 25.Nc4 dc4 26.a4–+) 25.Nc6 bc6 26.Rfc1 Bd7 27.Ne5 (27.R5c3 Kh7–+) 27...Qb4 28.Nc6 (28.Rd1 Be8–+) 28...Bc6 29.Rc6 Qd4 30.Kh1 Ng4 (30...Ne4!? 31.h3–+) 31.h3 Nf2 (31...Ne3!? 32.Rg1–+) 32.Kh2 Ne4 33.Rc8 Kh7 34.R8c7 (34.R1c2 Qe5 35.Re2 Qg3 36.Kg1 Ng5–+) 34...Qf2 35.g4 (35.R1c2 Qg3 36.Kg1 Ng5–+) 35...Qf4 36.Kh1 (36.Kg1 Ng3 37.R7c2 Ne2 38.Re2 Qc1 39.Kh2 d4–+) 36...f5 (36...Ng3 37.Kg1 Ne2 38.Kh1 Nc1 39.Rc1 Qc1 40.Kh2–+) 37.gf5 (37.Kg1 fg4 38.hg4–+) 37...Ng3 38.Kh2 Ne2 39.Kh1 Nc1 40.Rc2 Nd3 (40...d4 41.g4 d3 42.Rc4 Qf3 43.Kh2 Ne2 44.h4 Qf2 45.Kh3 Qg3) 41.Rc3 Qf1 (41...Nf2 42.Kg1 Qd4 43.Kh2 Qc3 44.f6 Qe5 45.Kg1 Qe1 46.Kh2 h5 47.g4 Ne4 48.gh5 Qg3 49.Kh1 Nf2) 42.Kh2 Ne5 (better 42...Qf5 43.Rc2 Qe5 44.Kh1 Nf2 45.Kg1 Qe1 46.Kh2 d4–+) 43.Re3 d4 (43...Qf4 44.Rg3 d4 45.a3 h5 46.a4 h4 47.Kg1 hg3 48.f6 Qc1) 44.Rg3 Qf4 45.f6 gf6 46.h4 (46.Kh1 Qg3 47.a3 d3 48.a4 d2 49.Kg1 d1Q) 46...Qh4 47.Rh3 (47.Kg1 Qg3 48.Kf1 d3 49.a3 Ng4 50.a4 Qf2) 47...Ng4 48.Kg1 Qe1 0–1. BeepBeepImAJeep (2690) – DaniyarMedybayev (2420), lichess.org, 2020.

4.d4 d5 5.cd6 Bd6 6.Nf3 (6.d5 Nce7+=) 6...ed4 7.ed4 Nf6 8.Bd3 0–0 9.0–0 h6 10.c3 Bg4 11.Nbd2 Re8 12.h3 Bh5 (12...Be6 13.Nc4+=) 13.Re1 (13.g4 Bg6 14.Bg6 fg6 15.Qb3 Kh7 16.Qb7 Re6+–) 13...Rc8 (13...Re1 14.Qe1 Qd7 15.Qd1+=) 14.Nc4 (14.Re8 Qe8 15.g4 Bg6 16.Bg6 fg6 17.Qb3 Kh7 18.Qb7 Nd5+–) 14...Bb8 (14...Re1 15.Qe1 Bf3 16.gf3=) 15.Be3 (15.Re8 Qe8 16.g4 Bg6+–) 15...Nd5+= 16.Bd2 (16.Rc1!?+=) 16...Re1= 17.Qe1 (better 17.Be1 Nf4 18.Bf1=) 17...Qf6?? (better 17...Bf3 18.gf3 Qc7=+) 18.Nce5 Ne5 19.de5 (19.Ne5 Be5 20.de5 Qe6+=) 19...Qc6 (19...Qe6 20.g4 Bg6 21.Bg6 Qg6 22.Qb1+=) 20.c4 (20.Nd4 Qc5 21.Nb3 Qc6+–) 20...Ne7 21.Qe4 Qe4 22.Be4 Rc4 23.Bb7 Bf3 24.Bf3 Be5 25.Re1 Bf6 26.Be3 Ra4 (26...a6 27.g4+=) 27.Re2 (27.Bc5 Ng6 28.a3 a6+=) 27...Nf5= 28.Bc6 Ra6 (28...Rc4 29.Bd5 Ne3 30.Re3 Rc1 31.Kh2=) 29.Bb7 Ra3 30.Bc5 Rc3 (30...Ra5!? 31.Rc2 Nd4 32.Bd4 Bd4=) 31.Ba7+= Rc7 32.Re8 Kh7 33.Be4 Ra7 34.Bf5 g6 35.Be4 (35.Bb1!?+=) 35...Ra2= 36.Rf8 Ra1 37.Kh2 Kg7 38.Re8 Re1 39.Bc6 Be5 40.g3 Re2 41.Kg2 Re1 42.Bf3 Bc3 43.Rc8 Bd2 44.Rc4 Be3?? (better 44...f5=) 45.fe3+– Re3 46.Rc2 Re7 47.Rf2 (47.Rf2 f5 48.Rd2+–) 1–0. BeepBeepImAJeep (2785) – paulovskj (2495), lichess.org, 2016.

4.d4 d5 5.de5 Bc5 6.Nf3 (6.Bb2 Qb6 7.Bc3 d4 8.ed4 Nd4+=) 6...Bg4 7.Be2 Nge7 8.Nbd2 0–0 9.0–0 Ng6 10.Nb3 Bb4 11.Bb2 Re8 12.a3 Bf8 13.h3 Be6 14.Bd3 Qd7 (14...Qc7 15.Bg6 fg6 16.Ng5+/–) 15.Nbd4 (better is 15.Ng5+/–) 15...Bh3? (better is 15...Nce5 16.Bb5 Nf3 17.Qf3 Ne5+=) 16.gh3+– Qh3 17.Bf5 Qh5 18.Bd7 Re5? (better is 18...Nd4 19.Bd4 Re7+/–) 19.Nc6 bc6 (19...Rg5 20.Ng5 Qg5 21.Qg4 Qg4 22.Bg4 bc6+–) 20.Ne5 Qe5 (20...Qg5 21.Ng4 h5+–) 21.Be5 Ne5 22.Bf5 g6 23.Bd3 f5 (24.Kg2 a5+–) +–. market (2150) – Albaern (1650), GameColony.com, 2002.

4.d4 d5 5.Nf3 e4 (5...Bg4 6.Be2 e4 7.Nfd2 Be2 8.Qe2+=) 6.Nfd2+– b6 7.cb6 f6? (better 7...ab6!? 8.c4 Bb4+–) 8.c4 Be6 9.Nc3 Bb4 (better 9...dc4 10.b7 Rb8 11.Qh5 Bf7+–) 10.cd5?? (10.Nd5 Bd5 11.cd5 Qd5+–) 10...Bd5?? (better 10...Bc3 11.dc6 Qb6= (11...Ba1? 12.c7 Qc8 13.Qa4 Bd7 14.Bb5+–)) 11.Nd5+– Qd5 12.a3 (12.Qa4 Nge7+–) 12...Ba5 (better 12...ab6 13.Rb1 Ba5+–) 13.b7 Rb8 14.Qc2 (14.Rb1 Qd7 15.Qh5 g6+–) 14...Nge7 15.Bc4 Qg5 16.0–0 Rb7 (16...Bd2 17.Bd2 Rb7 18.Qe4 Qf5 19.Qf5 Nf5+–) 17.Ne4 Qg6 18.Nd6 Kd7 19.Qg6 hg6 20.Nb7 Bc7 (20...Bb6 21.Bd2+–) 21.Nc5 Kc8 22.a4 (22.h3 Bd6 23.Be6 Kc7 24.Na6 Kb7 25.Rb1 Ka8+–) 22...Nf5?? (better 22...Bh2 23.Kh1 Bd6 24.Kg1 Bh2 25.Kh1 Bd6 26.Kg1 Bh2=) 23.Be6 Kd8 24.Bf5 (better 24.h3 Ke7+–) 24...Bh2 25.Kh1 gf5 26.g3 (better 26.Rd1 g5+–) 26...g5 (26...Bg3 27.Kg2 Bd6+–) 27.Kg2 f4 28.ef4 Nd4 (28...g4 29.Rh1+–) 29.Bb2 Nc2 30.Bf6 Kc8 31.Bh8 (31.Bh8 Na1 32.fg5+–) 1–0. BeepBeepImAJeep (2665) – magdanoz (2360), lichess.org, 2017.

4.d4 Nf6 5.Bb2 d5 +=.

4.d4 Nf6 5.Nf3 ed4 (5...e4 6.Nfd2 d6 7.cd6 Bd6 8.c4+=) 6.ed4+– Be7 (6...d6 7.Qe2 Be6 8.c4 Qa5 9.Bd2+=) 7.Bd3 (better 7.d5!? Qa5 8.c3+–) 7...0–0+= 8.0–0 d5 9.cd6 Bd6 10.c3 a6 11.Bg5 h6 12.Bh4 g5 13.Bg3 Kg7 14.Nbd2 Re8 15.Nc4 Bg3 16.fg3 Bg4 17.Qc2 (17.a4 Qc7+–) 17...Nd5? (better 17...Bf3!? 18.gf3 b5=) 18.Nfe5+– Ne5 19.Ne5 Threatening mate: Rxf7 19...Ne3?? (better 19...Be6 20.Bf5 Nf6+–) 20.Rf7 Kg8 (20...Kh8 21.Rh7 Kg8 22.Bc4 Nc4 23.Qg6 Kf8 24.Rf7) 21.Bh7 Kh8 22.Ng6 1–0. BeepBeepImAJeep (2515) – Bad4life (2340), lichess.org, 2015.

4.Ne2 Bc5 5.d4 ed4 =.

4.Nf3 e4 5.Ng1 Bc5 =.

4.d4 ed4

5.ed4+– b6 6.Nf3 (6.cb6 Qb6 7.Nf3 d5+–) 6...bc5+= 7.dc5 (7.d5 Qf6 8.c3 Ne5+=) 7...Bc5= 8.Bd3 Nf6 9.0–0 0–0 10.c4 h6 11.Nc3 d6 12.Nd5 Bg4 13.Bb2 Nd5 14.cd5 Nd4 15.Bd4 Bd4 16.Bh7 Kh7 17.Qd4 Bf3 18.Qd3 Kg8 19.Qf3 Rc8 20.Rab1 Qa5 21.Rb2 Qc3 22.Qc3 Rc3 23.g3 Rfc8 24.Re1 Rc1 25.Rc1 Rc1 26.Kg2 Rd1 (26...Rc5 27.Rd2=) 27.Rb5 Rd2 28.Ra5 Kh7 29.h4 Kg6 30.Kf1 Kf6 31.Ke1 Rd4 32.Ke2 Ke5 Exerts pressure on the isolated pawn (32...g5 33.hg5 hg5 34.Ra7 Rd5 35.a4=) 33.Ke3 (33.Ra7!? Kf6 34.a4+=) 33...Rd5 34.f4 Ke6 35.Ra7 f5 (35...Rc5!?=) 36.a4 (36.Rg7 Ra5+–) 36...g5 (36...Kf6!?+=) 37.hg5+– hg5 38.fg5 f4?? (better 38...Re5 39.Kf3 Rc5+–) 39.gf4 Kf5 40.Rf7 Ke6 (40...Kg6 41.Rd7+–) 41.Rf6 (better 41.g6 Rd1 42.f5 Ke5 43.a5+–) 41...Ke7 42.Rh6 (42.f5 Ra5+–) 42...Ra5 43.Rh7 Ke6 44.Rh6?? (44.g6 Ra4 45.Rf7 Ra3 46.Ke2 Ra2 47.Kf3 Ra3 48.Kg4 Ra1 49.f5 Ke5+–) 44...Ke7 45.Kf3 Ra4 46.f5 d5 47.Rh7 Kd6 48.g6 Ke5 49.g7 Rf4 (49...Ra3 50.Kg4 Ra2+–) 50.Ke3 (50.Kg3 Rc4 51.g8Q Rc3 52.Kf2 Rc2 53.Kf3 Rc3 54.Ke2 Rc2 55.Kd3 Rb2 56.Qg7 Kf4 57.Rh4 Kf5 58.Rh5 Ke6 59.Rh6 Kf5 60.Rf6 Ke5 61.Qe7) 50...Rf5?? (better 50...Rg4=) 51.g8Q+– Rf6 52.Rh5 (52.Rh5 Kd6 53.Qd5 Ke7 54.Rh7 Rf7 55.Rf7 Ke8 56.Qd7) 1–0. BeepBeepImAJeep (2565) – Suckouttt (2310), lichess.org, 2018.

5.ed4+– d5 6.cd6 (6.Nf3 Be7+–) 6...Bd6+= 7.Nf3 Nf6 8.Bd3 Bg4 9.0–0 (9.Be3 0–0+=) 9...Nd4= 10.Re1 (10.Nd4 A pinning theme 10...Bd1) 10...Ne6 (10...Kf8 11.Nbd2 Bb4 12.Bb2 Nf3 13.gf3=+) 11.Bb2 0–0 12.h3 Bh5 13.Nbd2 Nd5 (13...Nf4 14.Rb1=) 14.Ne4 (better 14.Be4 Bb4 15.c3 Bc3 16.Bc3 Nc3 17.Bh7 Kh8 18.Qb3=) 14...Qc7?? (better 14...Bb4 15.Rf1 Rc8=+) 15.Nd6+– Qd6 16.c4 Bf3 17.gf3 (17.Qf3 Ne7+–) 17...Nef4 18.cd5 (better 18.Bf5 g6 A) 19.cd5?! gf5 20.Kh1 f6= (20...Nh3 21.Rg1 Ng1 22.Qg1 Qg6 23.Qh2+–); B) 19.Be5+–) 18...Qh6?? (18...Nh3 19.Kg2 Nf4 20.Kg1 Qd5 21.Bh7 Kh7 22.Qd5 Nd5–/+) 19.Bf1+– Rad8 20.Bc1 Qg5 (20...Qg6 21.Kh1 Nd5 22.Ba3+–) 21.Kh2 Rd5 (21...Rd6 22.Bf4 Qf4 23.Kh1+–) 22.Qa4 Rf5 (22...Qf6 23.Ba3 (23.Qf4?! Qa1 24.Qe4 Qa2+=) 23...Qh4 24.Re2+– (24.Qa7 Nh3 25.Qa5 Ng5 26.Kg1 Nf3 27.Kg2 Qg4 28.Kh1 Qg1; 24.Bf8?? Qf2 25.Kh1 Rg5 26.Qf4 Rg1)) 23.Re4 (better 23.Re8 h6 24.Rf8 Kf8 25.Rb1+–) 23...b5 (23...Qf6 24.Rb1 Nd3 25.Bd3 Qd6 26.Rf4 Qd3 27.Rb7 Rf4 28.Qf4 Qa6+–) 24.Qd4 (24.Bf4?! Rf4 25.Qb5 Rf5+–) 24...Rd5 25.Bf4 (25.Rf4?? Rd4 26.Rf7 Qe5 (worse 26...Kf7 27.Bg5 a6 28.Be3+–) 27.f4 Rf4 28.Bf4 Qa1 29.Rf8 Kf8 30.Bb5 Qa2–+) 25...Rd4 26.Bg5 (26.Rd4?! Qf6 27.Rad1 a6+–) 26...Re4 (26...Rd5 27.Be3 a5 28.Re7+–) 27.fe4 h6 (27...Re8 28.Be3 b4 29.Rd1+–) 28.Be3 Kh7 (28...b4 29.Ba7 Ra8 30.Bd4+–) 29.Bg2 (29.Bb5 Rb8 30.a4 Rb7+–) 29...Re8 (29...a6 30.Rd1+–) 30.Rb1 (better 30.Ba7 Ra8 31.Be3 Ra5+–) 30...Re7 (30...a6 31.Rd1+–) 31.Rb5 Re8 (31...a6 32.Ra5+–) 32.Ra5 Rf8 (32...Re7 33.Ra7 Ra7 34.Ba7+–) 33.Ra7 Re8 (33...Kg8 34.a4 Re8 35.a5+–) 34.Rf7 Rf8 35.Rf8 Kg6 36.Rf5 (36.e5 Kh7 37.e6 h5 38.e7 g5 39.Be4 Kh6 40.e8N h4 41.Rh8) 36...h5 37.Bf3 Kh7 38.Bh5 g6 39.Rf7 Kg8 40.Bg6 Kh8 41.e5 (41.Bh6 Kg8 42.Rf8) 41...Kg8 42.e6 (42.Bh6 Kh8 43.Rf8) 42...Kh8 43.e7 Kg8 44.e8Q 1–0. BeepBeepImAJeep (2595) – Inferno3000 (2295), lichess.org, 2017.

5.ed4+– d5 6.cd6 (6.Nf3 Be7+–) 6...Bd6+= 7.Nf3 Nf6 8.Be2 0–0 9.0–0 h6 (9...Bg4 10.Nbd2+=) 10.c3 Re8 11.Nbd2 (11.Re1 Bg4+=) 11...Bg4 (11...Nd5 12.Nb1=) 12.Nc4 Bc7 (12...Ne4 13.Bb2+=) 13.h3 Bh5 14.Be3 Rc8 15.Rb1 b6 16.Nce5 (better 16.Re1!?+=) 16...Ne5=+ 17.de5 Qd1 18.Bd1 Be5 19.Ne5 Re5 20.Bd4 Ra5 21.Bb3 Nd5 The isolani on c3 becomes a target 22.Rbc1 Be2 23.Rfe1 Bc4 24.Re5 (24.Rc2=) 24...Nf4 (better 24...f6!? 25.Ree1 Ra3–/+) 25.Ra5+= Ne2 26.Kh2 Nc1 27.Ra7 Nb3 (27...Bb3 28.ab3 Nb3 29.Bb6 Rc3 30.Be3+=) 28.ab3+– Bb3 29.Rb7 Bc4 30.Rb6 Be6 (30...Kh7 31.f4+–) 31.Rb7 Rc4 32.g4 Kh7 33.Kg3 g5 34.Rb8 Rc8 35.Rb6 Kg8 36.f4 Rc4?? (better 36...Kh7+–) 37.f5 Bd7 38.Rh6 Kf8 (38...Rd4 39.cd4 Kg7+–) 39.Bf6 (39.Bf6 Rc3 40.Kf2 Rc2 41.Ke3 Rc3 42.Kd4 Rc4 43.Kc4 Be6 44.Kc5 Ke8 45.Kd6 Bf5 46.Rh8) 1–0. BeepBeepImAJeep (2545) – Inferno3000 (2240), lichess.org, 2017.

5.ed4+– d5 6.Nf3 Bg4 7.Be2 Nf6 8.0–0 Be7 9.c3 Bh5 (9...0–0 10.Re1+=) 10.Nbd2 0–0 11.Re1 Bg6 (11...Re8 12.Bd3+–) 12.Nf1 (12.Nh4 Be4+–) 12...Re8 13.Be3 Bf8 14.Ng3 Ne4 15.Ne4 de4 16.Nd2 f5 (16...Rb8 17.Qa4+–) 17.Bc4 (17.Qb3!? Bf7 18.Qb7 Rc8+–) 17...Kh8 18.Rb1 Qc7 19.g3 f4? (better 19...Rad8!?+–) 20.Bf4+– Qc8 (20...Qd7 21.Rb5+–) 21.Bd5 (better 21.Re3+–) 21...Qh3? (21...e3 22.fe3 Bb1 23.Qb1 Qd7+–) 22.Be4 (better 22.Rb7!? Rac8+–) 22...Be4 23.Ne4 b6 (23...Qd7 24.Qh5+–) 24.Ng5 Qf5 25.cb6 ab6 26.Qh5 (26.Re8 Re8 27.Rb6 Ne7+–) 26...Kg8 (26...Re1 27.Re1 Ne7 28.g4+–) 27.Qh3 (better 27.Re8 Re8 28.Rb5+–) 27...Qh3 28.Nh3 Re1 29.Re1 Ra2 30.Rb1 (30.d5 Na5+–) 30...Ra6 (30...Rc2 31.d5 Na5 32.Rb6+–) 31.Ng5 Na5 32.Ne6 White gets the initiative 32...Nc4 33.Nf8 Kf8 34.Rb4 Na3 35.Rb3 (35.d5 Ke7+–) 35...Kf7 36.Bc7 Ke6 (36...b5 37.d5+–) 37.Rb6 Rb6 38.Bb6 Kd5 39.Bc5 g6 (39...Nc4+–) 40.Ba3 Kc4 41.Bc5 Kc3 (41...Kd5 42.f4+–) 42.Kg2 (better 42.d5 Kc4 43.d6 Kc5 44.d7+–) 42...Kc4 43.h4 Kd5 44.f4 h5 (44...Kc6+–) 45.Kf3 Kc4 46.g4 Kd5 47.gh5 gh5 48.Ke3 (48.f5 Kc4 49.f6 Kb3 50.f7 Kc4 51.f8Q Kc3 52.Bb4 Kc2 53.Qc8 Kb3 54.Qc3 Ka4 55.Ba5 Kb5 56.Qc5 Ka4 57.Qb4) 48...Ke6+– 49.Ke4 Kf6 50.f5 Kf7 51.Kf4 (51.Ke5 Kg8 52.Kf6 Kh7 53.d5 Kg8 54.d6 Kh7 55.d7 Kh6 56.d8Q Kh7 57.Qe7 Kg8 58.Qg7) 51...Kf6+– 52.Ke4 (better 52.d5 Kf7 53.d6+–) 52...Kf7 53.Ke5 Kg7 (53...Kg8 54.Kf6 Kh7 55.d5 Kg8 56.d6 Kh7 57.d7 Kh6 58.d8Q Kh7 59.Qe7 Kg8 60.Qg7) 54.f6 (54.Ke6 Kg8 55.f6 Kh8 56.f7 Kg7 57.f8Q Kh7 58.d5 Kg6 59.Qf7 Kh6 60.Be3) 54...Kh6 (54...Kg8 55.Ke6 Kh8 56.f7 Kg7 57.f8Q Kh7 58.d5 Kg6 59.Qf7 Kh6 60.Be3) 55.Kf5 (55.f7 Kg7 56.f8Q Kh7 57.d5 Kg6 58.Qg8 Kh6 59.Be3) 55...Kh7 56.Kg5 Kg8 (56...Kh8 57.f7 Kg7 58.f8Q Kh7 59.Qh6 Kg8 60.d5 Kf7 61.Qg6) 57.Kg6 Kh8 58.d5 Kg8 59.f7 Kh8 60.f8Q 1–0. BeepBeepImAJeep (2740) – Inferno3000 (2415), lichess.org, 2017.

5.ed4+– d6 6.cd6 Qd6 7.Nf3 Nf6 8.c3 Be7 9.Bd3 0–0 10.0–0 Bg4 11.Nbd2 Rac8 12.h3 White launches an attack 12...Bh5 13.Qe2 (13.Qb3 Qc7+–) 13...Rfe8 14.Nc4 Qb8 15.Be3 b5 16.Ncd2 a6 (16...Nd5 A) 17.Bb5? Nc3 18.Qd3 Nb5–+ (18...Qb5?! 19.Qc3 Na5 20.Rfb1–/+); B) 17.c4 bc4 18.Bc4+=) 17.a4 b4 (17...Nd5 18.c4 bc4 19.Bc4+– (19.Nc4?! Ncb4 20.Nce5 f6=)) 18.Rab1 (18.Ba6!? Rc7 19.cb4+–) 18...a5 19.Bb5 (19.Bf5 Rcd8+–) 19...Bf8 (19...Nd5 20.Rfc1 Nc3 21.Rc3 bc3 22.Bc6 c2 23.Rb8 c1Q 24.Qf1 Qc6–/+) 20.c4 (better 20.Rfc1+=) 20...Rcd8?? (better 20...Nd4 21.Qd1 Nf3 22.Nf3 Red8–/+) 21.d5 (better 21.Bc6 Nd7 22.c5+–) 21...Ne5? (better 21...Nd4! 22.Qd1 Nb5 23.ab5 Ne4 24.Ne4 Re4+=) 22.Be8+– Re8 23.Bf4 (23.Rfe1 Nf3 24.Nf3 Qc8+–) 23...Nf3 24.Qf3! Bf3 25.Bb8 Be2? (better 25...Bd5 26.Bc7 Be4 27.Ne4 Ne4+–) 26.Rfe1 Bc5 (26...Rb8 27.Re2 Rc8 28.g3+–) 27.Bg3 (27.Bc7 Bd3 28.Rbc1 Ne4 29.Ne4 Be4+–) 27...Bd3 (27...Bd4 28.Nb3 Bc3 29.Na5 Be1 30.Re1+–) 28.Re8 Ne8 29.Rc1 Bd6 (29...Nf6 30.Bc7+–) 30.Bd6 Nd6 31.c5 Ne8 (31...Nb7 32.c6 Nd6 33.Nb3+–) 32.d6 Bf5 33.c6 (better 33.Nb3 Kf8 34.Na5+–) 33...Nd6 34.Rc5 Nc8 (34...Kf8+–) 35.Rf5 Kf8 36.Ra5 Ke7 37.Rb5 (better 37.Rd5!? g5+–) 37...Kd6 38.Rb4 Kc6 39.Rb5 (better 39.a5 h5+–) 39...Kd7 (39...Nb6 40.Rh5 h6 41.a5+–) 40.Nb3 (better 40.Rb7 Ke8+–) 40...Nd6 41.Nc5 (better 41.Rb4 Ne8+–) 41...Kc6 42.Ra5 Nb5 (42...Nc4 43.Ra7 Kc5 44.Rf7 g6+–) 43.ab5 (better 43.Rb5 Kc7 44.Rb2 Kc6+–) 43...Kc5 44.Ra7 Kb6 (44...f6 45.Rg7 h6 46.Rh7 Kb5 47.Rh6+–) 45.Rf7 Kb5 46.Rg7 (46.Rg7 h6 47.Rh7+–) 1–0. BeepBeepImAJeep (2590) – Fide15 (2285), lichess.org, 2017.

5.ed4+– d6 6.cd6 Bd6 7.Nf3 Nf6 8.Bd3 0–0 9.0–0 Qc7 10.c3 b6 (10...Re8 11.Na3+=) 11.Nbd2 (11.Bg5 Ng4 12.h3 Nh2+–) 11...Bg4 12.h3 Bh5 13.Bb2 Bg6 (13...Rfe8!?+=) 14.Bg6+– hg6 15.Nc4 Rfe8 16.Nd6 Qd6 17.a4 (17.c4 Rac8+–) 17...Rac8 18.Re1 Qd5 19.Qd3 Na5 20.Ba3 (20.Re8 Ne8 21.Qa6 Rc7+–) 20...Nc4 21.Bc1 (21.Be7!?+–) 21...Re1= 22.Ne1 Ne4 (better 22...Qa5=) 23.Be3 (23.f3 Nf6+=) 23...Ned6 (23...Ne3!? 24.fe3 Rc3=+) 24.Nf3 (24.Bf4 Ne4+=) 24...a6 (24...Qe4 25.Qe4 Ne4 26.Bf4=) 25.Re1 Nb2 (25...Qa5!?+=) 26.Qc2 Ndc4 27.Bc1 Qf5 28.Qf5 gf5 29.Bb2 Nb2 30.Ra1 (30.a5 ba5 31.Ra1 Rc3 32.Ra5 Rc1 33.Kh2 Nd3+–) 30...Nc4 (better 30...Rc3 31.Ra2 Nc4=) 31.Rb1+– Re8 32.Kf1 a5 33.Rb5 g6 34.Ne5 White gets strong initiative 34...Nd2 (34...Ne5!? 35.de5 Re6+–) 35.Ke2+– Ne4 36.Kd3 (36.Rb6 Nc3 37.Kd3 Rc8+–) 36...Rc8? (better 36...Nf2!? 37.Kc2 Re6+–) 37.c4+– (37.Rb6?! Rc3 38.Ke2 Rc2 39.Ke3 Rf2+=) 37...Nf2 38.Ke3 Ne4 39.Rb6 Nc3 40.Kd3 Na4 41.Ra6 (41.Rb5 f4+–) 41...Nb2 (41...Rd8 42.Ra5 Nb2 43.Kc2+–) 42.Kc3 Na4? (42...Nd1 43.Kd2 Nf2 44.Ra5 Ne4 45.Ke3+–) 43.Kd2 (better 43.Kb3!? Rd8+–) 43...Nb2 (43...Rd8 44.Nc6 Re8+–) 44.Ra5?? (better 44.c5 Rd8 45.Kc2+– (45.Ra5?! Rd4 46.Kc2 Rd5+–)) 44...Nc4 45.Nc4 Rc4 46.Kd3 Rb4 47.Ra8 Kg7 48.Ra2 Rb3 49.Kc4 Rg3 50.Rf2 Kf6 51.d5 (51.Kc5!?+–) 51...Ke5= 52.Re2 Kd6 53.Rf2 (53.Kd4!?=) 53...Ra3–/+ 54.Rf5?? (54.Rf5 gf5 55.Kd4–+; better 54.Rb2–/+). BeepBeepImAJeep (2500) – Takeda (2250), lichess.org, 2016.

5.ed4+– d6 6.cd6 Bd6 7.Nf3 Nf6 8.Be2 0–0 9.0–0 Bg4 10.c3 Re8 11.Re1 Rc8 12.Be3 Ne4 (12...Nd5 13.Bd2=) 13.Nfd2 Qh4?? (13...Be2 14.Qe2 Nf6 15.Qb5+=) 14.Nf1?? (better 14.Bg4 Qh2 15.Kf1 Nc3 16.Nc3 Nd4 17.f4 Rc3 18.Bd4 Qf4 19.Bf2 Re1 20.Ke1+–) 14...Be2= 15.Re2 f5? (15...Na5 16.f3 Nf6 17.Qc2=) 16.g3 (better 16.f3!? Nf6 17.Qb3 Kh8 18.Bf2+–) 16...Qh5= 17.Nfd2 f4 (17...Na5 18.Re1 Qf7 19.Ne4 fe4 20.Qg4+=) 18.Ne4?? (better 18.Bf4 Nd2 19.Re8 (worse 19.Rd2 Qd1 20.Rd1 Bf4+=) 19...Qe8 20.Qd2 Bf4 21.Qf4 (21.gf4?! Qg6 22.Kf1 Re8=) 21...Qe1 22.Kg2+–) 18...Re4=+ 19.Nd2 Re6 20.gf4 Rg6 (20...Bf4 21.Bf4 Qe2 22.d5 Rg6 23.Bg3 Qd1 24.Rd1=+) 21.Kh1 Rf8 The isolani on f4 becomes a target (21...Rh6 22.Nf1=) 22.Nf1?? (better 22.Re1 Rg4 23.Qb3 Rf7 24.f3+=) 22…Qf3 0–1. BeepBeepImAJeep (2765) – MeneerMandje (2715), lichess.org, 2020.

5.ed4+– Qf6 6.Nf3 (6.c3 d6 7.Qe2 Be7 8.cd6 Qd6+–) 6...Nge7 (6...Bc5 7.Bg5 Qe6 8.Be2 Be7+=) 7.Bd3?? (7.Nc3 d5+–) 7...Nf5?? Pawn d4, live or die! (better 7...Nd4 8.Nd4 Qd4=) 8.c3 d6 9.cd6 Bd6 (9...Qe6 10.Be2 Qd6 11.0–0+–) 10.0–0+– 0–0 11.Bg5 Qg6 12.Nbd2 (better 12.g4+–) 12...h6+– 13.Bh4 Qh5 14.Bg3 Ng3 15.fg3 Bg4 (15...Re8 16.Ne4 Bc7 17.Rb1+–) 16.Qc2 (16.Rb1 Bc8+–) 16...Rae8 17.Rae1 Ne7 (17...Re1 18.Re1 Rc8 19.Qb2+–) 18.Ne4 Bb8 19.h3 White fights for the Initiative 19...Bf3 20.Rf3 (20.gf3?! f5 21.Nc5 Bg3+=) 20...Kh8 (20...Qd5 21.Qb3 Qb3 22.ab3+–) 21.Ref1 Nd5? (21...Qd5 22.Qb3 f6 23.Nc5+–) 22.g4 (better 22.Rf5!? Qg6 23.Rd5 f5+–) 22...Qg6 (22...Qh4 23.Qb3 (23.Rf7?! Rf7 24.Rf7 Qe1 25.Bf1 Bf4+=) 23...Qd8 24.Rf7+–) 23.Nf6! Qg5? (23...gf6 24.Bg6) 24.Ne8 Re8 25.Rf5 (25.Rf7 Qe3 26.Kh1 Rg8+–) 25...Qe7? (25...Qe3 26.Qf2 Bg3 27.Qe3 Ne3 28.Rf7 Nf1 29.Bf1 Be1+–) 26.Rd5 Qe3 27.Qf2 Qd3 28.Qf7 Rc8 29.Rd7 (worse 29.Qb7 Qe3 30.Kh1 Rg8+–) 29...Qe3 30.Qf2 (30.Kh1 Rg8 31.Qf3 Qf3 32.gf3 b5+–) 30...Qc3 31.Rb7 (better 31.g5!? Bg3 32.Qe2 Qc6+–) 31...Bg3 32.Qf7 (32.Qf5!? Qd4 33.Kh1 Ra8+–) 32...Qd4 33.Kh1 Qc3 (33...Bd6 34.Qe6 Rd8 35.g5 hg5 36.Qe2+–) 34.Re7 (34.g5 hg5 35.Ra7 Be5 36.Qh5 Kg8 37.Qg5 Qc4+–) 34...Be5 (34...Bd6 35.Re8 (worse 35.Ra7 Rf8 36.Qf8 Bf8+–) 35...Re8 36.Qe8 Kh7 37.Qe4 Kh8 38.Qa8 Kh7 39.Qa7+–) 35.Re8 (better 35.g5!? hg5 36.Rd1 Bf6 37.Ra7 Qe3+–) 35...Re8 36.Qe8 Kh7 37.Qf7 Bf6? (37...Qg3 38.Qf5 Kh8 39.Qc8 Kh7 40.Qc2 Kg8 41.Qb3 Qb3 42.ab3+–) 38.Qe6 (better 38.Qa7!? Be5+–) 38...Qd4 (38...a5 39.Qe4 Kg8 40.a4+–) 39.Qf5 Kg8 40.Qf3 Kf7 41.g5 (41.Rd1 Qc5+–) 41...hg5 42.Qh5 Kg8?? (42...Kf8+–) 43.Qf3 (better 43.Re1 Qd6 44.Re8 Qf8 45.Qe2 Qe8 46.Qe8 Kh7 47.Qd7+–) 43...Qe5?? (43...Kf7 44.Rd1 Qa4 45.Qd5 Kg6+–) 44.a4 (better 44.Qa8!? Kh7 45.Qa7 Kh6+–) 44...Qd4 45.Rd1 (better 45.a5!?+–) 45...Qa4+– 46.Qd5 Kh7 47.Qd3 Kh6 48.Re1 Qf4 49.Qe4 (49.Re4 Qc1 50.Kh2 a5+–) 49...Qe4 (49...a5!?+=) 50.Re4+– a5 51.Ra4 Bc3 52.Ra3 Bb4 53.Ra2 (53.Rg3 Kg6+–) 53...Kg6 (53...g4 54.hg4 Kg5 55.Kg1+=) 54.g4+– Kf6 55.Kg2 (55.Re2 Bc5+–) 55...Ke5+= 56.Kf3 Kd4 57.Ke2 Kc3 58.Kd1 Kb3 (58...Kb3 59.Rc2 a4=). BeepBeepImAJeep (2620) – ikzetmat (2070), lichess.org, 2018.

3.e3 d6

4.Bb2 Nc6 5.cd6 Bd6 +=.

4.Bb5 Nc6 5.cd6 Nf6 +=.

4.Nc3 dc5 5.Nf3 Bd6 =.

4.d4 ed4 5.Qd4 Nc6 =.

4.cd6 Nf6 5.Bb5 Nc6 +=.

3.e3 Nf6

4.Ba3 Qa5 5.Nf3 Nc6 +=.

4.Bb2 d6 5.Na3 Nbd7 +=.

4.c3 Bc5 5.d4 ed4 =.

4.d4 ed4 5.ed4 b6 6.Nf3 (6.cb6!? ab6 7.Nf3+–) 6...bc5+= 7.Bd3 cd4 (7...Qe7 8.Be2+=) 8.Nd4 (8.0–0 Nc6+=) 8...Nc6 9.Nb3 (9.Qf3 Bb7+=) 9...Bb4 10.c3 Qe7 (10...Be7 11.0–0=) 11.Be3+= Bd6 12.0–0 0–0 13.N1d2 (13.Nd4 Nd4 14.Bd4 Re8+=) 13...Bb7?? (better 13...Bh2 14.Kh2 Qd6 15.Kg1 Qd3–/+) 14.Nc4+– Bc7 (14...Be5!?+–) 15.Bc5+– d6? (better 15...Qd8!? 16.Bf8 Qf8+–) 16.Nd6!! Bd6 (16...Qd6 17.Bd6 A double attack) 17.Bd6 Qe6 (17...Qd8 18.Nc5 Na5 19.Bf8 Qf8 20.Nb7 Nb7+–) 18.Nc5 Qc8 19.Rb1 (19.Bf8 Kf8 20.Rb1 Ne5 21.Nb7 Qc3+–) 19...Rd8 20.Nb7 Rd7 (20...Re8 21.Bf4 Re7 22.Nd6+–) 21.Bf5 Rd6 22.Nd6 Qc7 (22...Qf8 23.Ne4 Ne4 24.Be4+–) 23.Rb7 Qa5 24.Rf7 Rd8 (24...Ne5 25.Rf6! gf6 26.Qb3 Kf8 27.Bh7+–) 25.Be6 Kh8 26.Rf6! gf6 27.Nf7 Kg7 28.Qg4 Kf8 29.Nd8 Nd8 30.Qg8 Ke7 31.Bb3 (31.Rd1 Qb5 32.Qd8 Ke6 33.Rd6 Kf5 34.Qf6 Kg4 35.h3 Kh5 36.g4) 31...Qc3 32.Qg7 Kd6 33.Rd1 Kc5 (33...Kc6 34.Qd7 Kb6 35.Qd8 Kb5 36.Qb8 Ka6 37.Rd6 Ka5 38.Rd5 Qc5 39.Rc5 Ka6 40.Qb5) 34.Qc7 Kb4 (34...Kb5 35.Rd5 Ka6 36.Bc4 Qc4 37.Ra5) 35.Qc3 (35.Qd6 Ka5 36.Rd5 Qc5 37.Qc5 Ka6 38.Qb5) 35...Kc3+– 36.Rd8 a5 37.Ra8 a4 38.Ra4 Kb2 39.Rf4 f5 40.Rf5 (40.a4 Kb3 41.a5 h5 42.a6 Kc2 43.a7 Kb2 44.a8Q Kc2 45.Qa2 Kd3 46.Qb2 h4 47.Rd4) 40...h5 41.Rh5 Ka3 42.Rc5 Kb2 43.Rc4 Ka3 (43...Kb1 44.f4 Kb2 45.f5 Ka1 46.f6 Kb2 47.g3 Kb1 48.f7 Ka1 49.f8Q Kb2 50.Rc2 Kb1 51.Qf1) 44.f4+– Kb2 45.f5 Ka3 (45...Ka1 46.f6 Kb2 47.f7 Ka3 48.f8Q Kb2 49.Rc2 Kb1 50.Qf1) 46.f6 Kb2 47.f7 Ka3 48.f8Q Kb2 49.Qb4 (49.Rc2 Kb1 50.Qf1) 49...Ka1 50.Qd2 Kb1 51.Rc1 1–0. BeepBeepImAJeep (2610) – magdanoz (2295), lichess.org, 2017.

4.d4 d6 5.de5 de5 +=.

4.Be2 Bc5 5.d4 Bd6 =.

3.e4 b6

4.cb6+/– ab6 5.Nf3 Nc6 6.d3 (6.Bb2 Nf6+/–) 6...Nf6 7.Be2 Bb4 (7...d5 8.ed5 Nd5 9.0–0+=) 8.Bd2 (8.c3 Bc5+/–) 8...Ba5 (8...d5 9.Bb4 Nb4 10.Qd2+= (worse is 10.Ne5 Qc7 11.c3 Qe5+=)) 9.0–0 d5 10.ed5 Qd5 11.c4 Qd8 12.Ba5 Ra5 13.Nc3 0–0 14.a4 Nh5 (14...Bg4 15.Rb1+=) 15.Qc2 (15.Ne5!? Ne5 16.d4+=) 15...Nf4= 16.Ne4 (16.Rfb1!?=) 16...Bg4–/+ 17.Neg5?? (better is 17.Rfb1–/+) 17...Ne2–+ 18.Qe2 Qg5!! 19.Qe4 (19.Ng5 Be2 Pinning (19...Be2 Deflection)) 19...Bf3 20.Qf3 Nd4 21.Qe4 Nb3 22.Rad1 Nd2 23.Rd2 (23.f4 Ne4 24.fg5–+) 23...Qd2 24.h3 Re8 (24...Rd8 25.Rb1 Ra4 26.Qe5 Qd3 27.Rb6 Rc4 28.Kh2–+) 25.Qc6 (25.f4 f6–+) 25...Rea8 26.Qb6 Qd3 27.Qc6 (27.Rb1 h6 (27...Qc4?! 28.Qa5 Qe4 29.Rd1=) 28.Rb5 Ra4 29.Re5 Qc4–+) 27...Ra4 28.c5 (28.Re1 Qc3 29.Re4 Qc2–+) 28...R4a6 29.Qc7 Qe4 30.Rd1 Ra1 31.Ra1 (31.Qd7 Qd4 32.Qd4 ed4 33.Kf1 Rd1 34.Ke2–+) 31...Ra1 32.Kh2 Qf4 33.g3 Qf2 0–1. carlopm (1910) – pvaras (2410), net–chess.com, 2010.

4.cb6+/– Qb6 5.Nf3 (5.Nc3 Bc5 6.Qf3 Nf6+/–) 5...Nc6 (5...Nf6 A) 6.Ne5 Qd4 7.Nf7 Bc5 (7...Qa1?! 8.Nh8 Qb1 9.Bc4=; 7...Kf7?! 8.Nc3–/+; 7...Qe4?! 8.Be2 Kf7 9.Nc3–/+) 8.Nd6 Kf8+=; B) 6.Qe2+/–) 6.Nc3 Nd4 (6...Nf6!? 7.Rb1 Qc7+/–) 7.Ne5+– Nf6 8.Nc4 (8.Bc4 Ne6 9.0–0 Qd4 10.Be6 de6+–) 8...Qc5 (8...Qc6 9.e5 Qe6 10.Bb2+–) 9.d3 (9.e5 d5 10.Ba3 Qc6 11.Bf8 Kf8+–) 9...d6 (9...d5 10.ed5 Nd5 11.Nd5 Qd5 12.c3+–) 10.Bd2 (10.Bb2 Bd7+–) 10...Be7 11.Na4 Qc7 12.h3 (12.Rb1 d5 13.c3 Bg4+–) 12...0–0 13.c3 Nb5 14.Be2 d5 15.ed5 Nd5 16.Bf3 (16.0–0 Rb8+–) 16...Bb7 (better is 16...Be6+/–) 17.d4?? (better is 17.Rb1 a6 18.0–0+–) 17...Nf4?? (better is 17...Qc4 18.Qb3 Qb3 19.ab3 Rfe8+=) 18.Bf4+– Bf3 19.Qf3?? Qc4+/– 20.Nb2 Qc3 21.Qc3 Nc3 22.Nd1 Bb4 23.Kf1 Rad8 24.Be3 Ne4 25.a3 Nd2?? 26.Ke2+– Ne4 27.ab4 Rc8 28.Ra2 Rc7 29.Rg1 Rfc8 30.Kf3 f5 31.g4 Nc3 32.Nc3 Rc3 33.Ra7 Rf8 34.Kf4 g6 35.Kg5 Rf7 36.Rf7 Kf7 37.gf5 gf5 38.Kf5 1–0. gstevenson (2235) – burrango (1970), net–chess.com, 2009. (=1.e4 c5 2.b4 b6 3.bc5 e5)

3.e4 Bc5

4.Ba3 Ba3!? 5.Na3 Nf6 +=.

4.Ba3 b6 5.Nf3 (5.Bc5 bc5 6.Nc3 d6+=) 5...Nc6 (5...Ba3 6.Na3 Nf6=) 6.c3 (6.Bc5 bc5 7.Nc3 Rb8+=) 6...Ba3 (6...Nf6!? 7.Bc5 bc5+=) 7.Na3= a6 (7...Nf6 8.Bb5=) 8.d4+= ed4 9.cd4 (9.Nc4 Qe7 10.Nd4 Nf6+/– (10...Qe4? 11.Be2 Qg2 12.Bf3+/–)) 9...d5 (9...Qe7 10.Nc4 d5 11.Nce5 Qb4 12.Qd2 Qd2 13.Kd2 Ne5 14.de5 de4 15.Ng5=) 10.e5+= b5 11.Be2?? (11.Nc2+=) 11...Qe7?? (better is 11...Qa5 12.Qd2 Qa3–+) 12.Nc2+/– Bf5 13.0–0 Rc8 14.Rc1 Qd7 15.Ne3 Bg6 16.Nh4 Nge7 17.f4 Nf5?? 18.Nef5 Bf5 19.Nf5 (19.Nf5 Qf5 20.Bg4+–) 1–0. wstanevans (2165) – eweram (2065), net–chess.com, 2007. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

4.Ba3 d6 5.Bc5 dc5 6.Nf3 Bg4 7.Bb5 Nc6 8.Bc6 bc6 9.d3 Ne7 10.0–0 Ng6 11.Nbd2 Qf6 (11...0–0 12.Rb1=) 12.Rb1 (12.Qe1 0–0+=) 12...0–0= 13.Rb7 Nh4 14.Qe2 Rfb8 15.Rfb1 Rb7 16.Rb7 a5 (16...Qe6 17.h3 Bf3 18.Nf3 Nf3 19.Qf3 Qa2 20.c4=) 17.Qe3 Nf3 18.Nf3 Qd6 19.h3 Bf3 (19...Bc8 20.Rb1+=) 20.Qf3 f6? (20...Rf8 21.Kh2+–) 21.Qf5 (21.Qg4 Qf8+–) 21...Rd8? (better 21...Kh8!?+–) 22.Qg4+– g6 (22...Qf8+–) 23.Ra7 (better 23.Qh4 h5 24.Qg3 f5 25.ef5 Qf6 26.fg6 Qf4 27.Qf4 ef4+–) 23...Rb8?? (better 23...Re8+–) 24.Qh4+– h5 25.g4 Rd8?? (25...Rb1 26.Kg2 Qb8 27.Ra5 Qd8 28.Rc5 Qd6+–) 26.gh5 g5 (26...Qb8 27.Qf6 Qa7 28.Qd8 Kg7 29.hg6 Kg6 30.Qg8 Kf6 31.Qh8 Kg6 32.Qe5 Qf7+–) 27.Qg4 Kh8 28.Qf5 (28.Qf5 Qc7 29.Rc7 Kg8 30.Qh7 Kf8 31.Qf7) 1–0. Valbuena Castro,Gregorio (1915) – Rodrigo Moli,Josep, Barcelona Escacs CC tt, 2007. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

4.Bb2?? Qb6–+ 5.Be5 Bf2 6.Ke2 f6 7.Bb8 Bg1–/+ (7...Rb8?! 8.Nf3+=) 8.Bg3 Ne7 9.Nc3 0–0 (9...Bd4 10.Kd3 Bc3 11.dc3–/+) 10.Ke1 (10.Qb1!?=) 10...Bd4+= 11.Rb1 (better is 11.Bc4 Kh8 12.Qf3=) 11...Qa5 (better is 11...Qe6!?–/+) 12.Rb5 (12.Nb5 Be5 13.Bc4 Kh8+=) 12...Qd8= 13.Bc4 Kh8 14.Rh5 Bc3?? (better is 14...g6 15.Rh4 Bc3 16.dc3 Re8=) 15.Rh7!! (15.Rh7 Kh7 16.Qh5#; 15.dc3?! d5 16.ed5 Nf5=) 1–0. Garcia Alvarez,JB – Rodriguez Garcia,IC, Asturias–ch Primera A, 2000. (=1.e4 c5 2.b4 e5 3.bc5)

4.Bb2?? Qb6–+ 5.Be5 Bf2 6.Ke2 f6 7.Bc3? Bg1–+ 8.d4 d5! 9.Rg1?? (9.ed5 Bg4 Double attack (9...Qb5 Decoy)) 9…Bg4–+ (9...Bg4 10.Ke1 Bd1 11.Kd1 Ne7–+) 0–1. gtan (2245) – pallen (2220), net–chess.com, 2007. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

4.Bb2?? Qb6–+ 5.Nf3 Bf2 (5...Qb2?! 6.Nc3 Qb6 7.Rb1–+) 6.Ke2 Qb2 –+.

4.Bb2?? Nc6 5.Nf3 d6 6.d4 Qa5 (6...Qb6!? A) 7.dc5 Qb2 8.Nbd2 dc5 9.Rb1 Qa2 10.Nc4 Qa4 11.Nd6; B) 7.Nbd2 Qb2 8.dc5 (8.Rb1 Qc3 9.dc5 dc5 10.Rb3 Qa5 11.Bb5) 8...dc5 9.Rb1 Qa2 10.Nc4 Qa4 11.Nd6; C) 7.Qc1 ed4–/+ (7...Nd4 8.Nd4 Nf6 9.Bb5 Kf8 10.Nd2 Bd4 11.Bd4) 8.Bd3 Be6 9.Nbd2 Rc8 10.0–0 Ne5 11.Qb1) 7.Bc3= Bb4 8.Qd2 (8.Bb4 Qb4 9.c3 Qb2 10.Nbd2 Qc3 11.Rc1) 8...Nf6 9.Bb4 (9.Bd3 ed4 10.Bb4 Nb4= 11.0–0) 9...Nb4 10.a3?? (better is 10.c3 Nc6 11.Bd3=) 10...Nc2–+ 11.Kd1 Qd2 12.Nbd2 Na1 13.de5 (13.Kc1 d5 14.Kb2 Ne4 15.Ne4 de4 16.Ne5 f6–+) 13...de5 14.Ne5 Be6 15.Bb5 Ke7 16.Bc4 Rhd8 17.f3 Bc4 18.Nec4 Nb3 19.e5 Nd5 20.Nd6 Nc5 21.g3 Ke6 22.f4 f6 23.Re1 fe5 24.fe5 Nd3 25.Rg1 Ke5 26.Nf7 Kd4 27.Nd8 Rc8 28.Ne6 Ke3 29.Nf1 Kf2 30.Rh1 Kg2 31.Ke2 Nc1 32.Kd1 Kh1 33.Ng7 Kg2 34.Ke1 Rc2 35.Kd1 Rc4 36.Nd2 Ne3 37.Ke1 Rc2 38.Nh5 Ra2 39.Nf4 Kg1 40.Nf3 Kh1 41.a4 Ng2 42.Kd1 Nf4 43.gf4 Nd3 44.f5 Ra4 45.Ke2 Nf4 46.Ke3 Nd5 47.Kd3 Rf4 48.Nd4 Kh2 0–1. Markova,Katerina – Havrdova,Lenka, CZE–ch U20 Girls, 1994. (=1.e4 c5 2.b4 e5 3.bc5)

4.c3 Nf6 5.d4= ed4 6.cd4 Bb4 7.Bd2 Qb6 8.a3 Qd4 9.ab4 (better is 9.Bb4 Qa1 10.Qc2+–) 9...Qa1+= 10.Qc2 0–0?? (better is 10...Nc6 11.Bc3 Nb4+=) 11.Bc3+– Qa2 (11...Qc3 12.Nc3 a5 13.ba5 Ra5+–) 12.Qa2 Ne4 13.Bd3 Nc3 14.Nc3 Re8 (14...Nc6 15.Nd5 d6 16.Nc7+–) 15.Nge2 Nc6 16.Nd5 Re5 (16...Rd8 17.Qc4 a6 18.Qh4+–) 17.b5 Nd4 (17...a5 18.bc6 bc6 19.Nb6+–) 18.Nc7 1–0. pvaras (2410) – debutler (2180), net–chess.com, 2010.

4.Nc3 Bd4 5.Ba3 Bc3 6.dc3 Qa5?? (better is 6...Nf6 7.Qd6 Nc6=) 7.Qd6+– Kd8 (7...Qc3 8.Ke2 Qc2 9.Kf3 Qc3 10.Bd3 Qa3 11.Qa3 Nc6+–) 8.Qf8 Kc7 9.Bd6 Kb6 10.Qc8 a6 (10...Qc3 11.Qc3 Na6 12.Rb1 Nb4 13.Qc5) 11.Rb1 Ka7 (11...Qb5 12.Qc7 Ka7 13.Bc5 Qc5 14.Rb7) 12.Rb7 (12.Qb7) 1–0. Bazza3 – karlsdad, ChessWorld.net, 2012. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

4.Nc3 Nf6 5.Bc4 Nc6 6.Nf3 0–0 7.0–0 d6 8.Rb1 Qe7 9.d3 h6 10.Na4 Bg4 11.Nc5 dc5 12.Bb2 Nd4 13.Bd4 ed4 14.h3 Bh5 15.e5 Nh7 16.g4 Bg6 17.h4 h5 18.g5 Bf5 19.Re1 Rad8 20.Nh2 g6 21.Qf3 b6 22.Nf1 Be6 23.Bb3 Rfe8 24.Ng3 Bb3 25.ab3 Qc7 26.Qe4 Qd7 27.Qg2 Qd5 (27...Qg4 28.Re4 Qe6 29.Ne2=) 28.Qd5 Rd5 29.f4 a5 30.Ne4 Re6 31.Nd6 Nf8 32.Kf2 Nd7 33.Nb5 Rc6 34.Kf3 Nb8 35.Nd6 Na6 36.Ke4 Nb4 37.Re2 Kf8 38.Ra1 Rc7 (38...Rdd6!? 39.ed6 Rd6+=) 39.Ra4+/– Rc6 40.Nf7! Rd7 (40...Kf7 41.Rb4 Combination) 41.Nd6 Re7 42.Kf3 Nd5 43.Rh2 Rd6 44.ed6 Re3 45.Kf2 Nf4 46.Ra1 Re6 47.Re1 Rd6 48.Re5 Nd5 49.Ke1 Ne3 50.Rf2 Nf5 51.Rfe2 Ne3 52.c3! Kf7 (52...dc3 53.R2e3 Deflection) 53.cd4 cd4 54.Rf2 Nf5 55.Kd2 Rc6 56.Rf4 Re6 57.Ree4 Ke7 58.Kc1 Kd7 59.Kc2 Kd6 60.Re6 Ke6 61.Re4 Kd5 62.Kb1 Kd6 63.Ka2 Kd5 64.Ka3 b5 65.Kb2 ½–½. Comp Genius 3 – Mede,Istvan (2140), Debrecen Kinizsi Cup 4th rapid, 1997. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

4.Bc4 b6 5.Qf3 (5.Nf3 Nc6=) 5...Nf6 6.Nh3 (6.Nc3 Ba6 7.Ba6 Na6=) 6...0–0 7.0–0 d6 8.d3 (8.Nc3 Bg4 9.Qg3 Bd4+=) 8...Bb7 (8...Nc6!? 9.Be3 Bg4–/+) 9.Bg5= Nbd7 (9...h6 10.Bf6 Qf6 11.Qf6 gf6 12.Nd2=) 10.Qg3 (10.Nd2 h6 11.Be3 Be3 12.fe3 Nc5=) 10...Bc6 11.Bh6 (11.Nd2 b5 12.Bb3 Bd4=) 11...Nh5 12.Qg4?? (better is 12.Qf3=) 12...Ndf6–+ 13.Qh4 (13.Qg5 Kh8–+) 13...gh6 14.Nd2 d5 (14...b5 15.Bb3–+) 15.Bb3 (15.ed5 Bd5 16.Bd5 Qd5–+ (worse is 16...Nd5 17.Qh5 Bd4 18.Rae1+=)) 15...Be7 (better is 15...Ng7!? 16.Qh6 de4 17.Ne4 Be4 18.de4 Ne4 19.Rae1–+) 16.ed5 Bd5 17.Bd5 Qd5 18.c4 Qd3 19.Rfd1 Qg6 20.Qe4 Ne4 21.Ne4 Qe4 22.Rd2 Qc4 23.Rad1 Rfd8 24.Rd8 Rd8 25.Re1 Qa2 26.f3 Rd2 27.g4 Bc5 28.Kf1 Qd5 29.Re4 Rh2 30.Ng1 Qd1 31.Re1 Ng3 0–1. zeca (1795) – tundeski (2550), net–chess.com, 2009. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

4.Bc4 Qf6 5.Nf3 h6 6.0–0 (6.Nc3 Nc6 (6...Ne7 7.Bb2 Qb6 8.Ne5 Qb2 9.Bf7 Kf8) 7.Nd5 Qd6 8.c3 Nge7 9.d4 ed4) 6...Ne7 (6...Nc6 7.Nc3 Nge7 8.Bb2 d6 9.Nd5 Nd5) 7.c3 (7.Bb2 Nbc6 8.Nc3 d6 9.Nd5 Nd5) 7...d6 (7...Nbc6 8.Bb2= 0–0 9.d4 Bb6) 8.d4 ed4 9.cd4 Nbc6 10.dc5 (better is 10.Bb2 Bb6 11.Qd2+=) 10...dc5?? (10...Qa1 11.Bd2 Qf6= (11...dc5?? 12.Bc3 Qc3 13.Nc3+–)) 11.e5!+– Ne5 (11...Qg6 12.Re1 Bg4+–) 12.Ne5 Qe5 13.Re1 (13.Re1 Qc7 14.Bf4+–) 1–0. Spindelberger,Paul (1975) – Woerndle,Josef, Wattens op, 1998. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

4.Bc4 Qh4 5.Qe2+= Nf6 6.d3 (6.Nc3 Nc6 7.Nf3 Qg4+=) 6...Nc6= 7.Nf3 Qg4 (7...Qh5 8.Nc3=) 8.0–0 Nd4 (8...d6 9.Be3=) 9.Nd4+= ed4? (better 9...Bd4 10.Qg4 Ng4+=) 10.Qg4 ½–½. Back_Rank_Amateur (2390) – raymac (1845), ChessWorld.net, 2019.

4.f3 Nf6–/+ 5.c3 (5.Ba3 Ba3 6.Na3 0–0–/+) 5...0–0 (better is 5...Qa5!?–+) 6.d4–/+ ed4 7.cd4 Bb6 8.Nc3 d6 (8...Nc6 9.Be3 d5–/+) 9.Bd3? (9.Nge2!?+=) 9...Bd4 (better is 9...Nc6–/+) 10.Bb2?? (better is 10.Nge2!? Bb6 11.Ba3–/+) 10...Qb6 (better is 10...Bg1 11.Rg1 Qb6–+) 11.Nge2?? (11.Na4 Qb4 12.Kf1 Bb2 13.Rb1–+) 11…Qb2 (11...Qb2 12.Qc1 Qc1 13.Rc1 Be3–+) 0–1. zurbateur (1655) – marmite (2125), net–chess.com, 2008. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

4.Nf3 Qb6 5.Qe2 Nc6 6.Nc3 Bd4 7.Nd5 Qa5 (7...Qd8 8.Rb1 Bc5 9.Ne5+–) 8.c3 Bb6 9.Qb5 (9.Nb6 Not 9...ab6 (worse is 9...Qb6 10.Ba3+=) 10.a4 Nf6=) 9...Nge7 (9...Qb5 10.Bb5 Nf6 11.Nf6 gf6 12.h3=) 10.Nb6 (10.Qa5 Ba5 11.Rb1 Nd5 12.ed5 Ne7+=) 10...ab6+= 11.Bb2 (11.Qb3 Qa4 12.Qa4 Ra4=) 11...0–0 12.Be2 d5 13.ed5 Nd5 14.0–0 Bg4 15.Qc4 Nf4 16.h3 Be6 17.Qe4 f5 18.Qe3 Ng2?? (better is 18...Nd5 19.Qg5 Rf6–/+) 19.Kg2+/– f4 (19...Kh8 20.d3 Rad8+–) 20.Qe4 Bd5 (better is 20...Kh8!? 21.Bc4 Bf5+–) 21.Bc4+– Bc4 22.Qc4 Kh8 23.Ng5 e4?? (23...Rf6 24.Nf7 Kg8 25.Ne5 Kh8 26.Nf7 Kg8 27.Nd6 Kh8+–) 24.Nf7 Rf7 25.Qf7 Qg5 26.Kh2 Ne5 27.Qb7 Re8 28.Rg1 Qh6 29.Kg2 Nf3 30.c4 Nd2 31.Qd7 Rg8 32.Kh1 (32.Kh1 Qg6 33.Rg6 hg6 34.Qd2 e3 35.Qd7 ef2 36.Qe7 f1Q 37.Rf1 g5 38.Qg5 Kh7 39.Qh5) 1–0. Lana Rodriguez,David (2085) – Pellicer Coloma,Pedro (2115), Aragon op, 2002. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

4.Nf3 Qb6 5.Qe2 Nc6 6.Nc3 d6 7.Na4 Qc7 (7...Qb4 8.Nc5 Qc5 9.Qe3=) 8.Nc5+= dc5 9.Qb5 Nf6 10.Qc5 (10.Bd3 Bg4 11.Qc5 Bf3 12.gf3 b6+=) 10...Ne4= 11.Qe3 Nd6 12.Ba3 (12.Ne5? Nf5 13.Qe4 Qe5 (13...Ne5?! 14.f4=) 14.Qe5 Ne5–+) 12...0–0 13.Bd3 (13.Ne5?? Ne5 14.Qc5 Qc5 15.Bc5 Re8–+) 13...Re8 14.0–0 f6 15.Rfe1 Be6 16.Nh4 Nf7 (16...Rad8 17.Bd6 Qd6 18.a3+=) 17.Qg3 (17.h3 Rad8=) 17...g5 (17...Qa5 18.Rab1 Rab8 19.Qe3=) 18.Bf5 (18.Nf3 Rad8=) 18...Nd4 (better is 18...Rad8 19.Bc5 Bf5 (19...Rd2?! 20.Be3 Rd5 21.c4–/+) 20.Nf5 Rd2–/+) 19.Be6? (better is 19.Bd3=) 19...Re6–/+ (19...Ne6?! 20.Nf5+=) 20.Rac1 (20.Bb2 Nc2 21.Rec1 Rc6–+) 20...Qc4 21.d3?? (21.Qg4 Nh6 (worse is 21...Qa2 22.Bc5 Rd8 23.Nf5 Nf5 24.Qf5–/+) 22.Qh5 Kg7–+) 21...Qa2 (better is 21...Qc3 22.Bb4 Qb4–+) 22.Bc5–/+ Qd5 (22...Rae8!? 23.Qg4 b6 24.Bd4 Nh6–/+) 23.Bd4+= Qd4 (23...ed4 24.Re6 Qe6 25.Nf3+=) 24.Re4 (24.Nf5!? Qf4 25.Qh3+=) 24...Qb2–/+ 25.Rce1 (25.Ree1 e4 26.Nf5 ed3 27.Qd3 Rae8–/+) 25...Nd6 (25...Qc2 26.Nf5 Rd8 27.R4e3–/+) 26.Qg4 (26.R4e2!?–/+) 26...Rae8–+ 27.Rb4 (27.R4e3 h5 28.Qh5 gh4 29.Qh4–+) 27...Qc3 28.Reb1 (28.Rbb1 h5 29.Qh5 gh4 30.Qg4 Kf7 31.Qh4 Rg8–+ (31...Qc2?! 32.Qh7 Kf8 33.Qh8 Kf7 34.Qh7 Kf8 35.Qh8 Kf7 36.Qh7=)) 28...e4 29.h3 ed3 (29...Qc2 30.d4 e3 31.fe3 Re3 32.Nf3–+) 30.cd3 Re1 (better is 30...b5–+) 31.Re1? (31.Kh2 Rb1 (31...Qd3?! 32.Re1 Re1 33.Rd4–/+) 32.Rb1 Qd3–+) 31...Qe1 (better is 31...Re1 32.Kh2 h5 33.Qd4–+) 32.Kh2 Qe6 (32...a5!? 33.Ra4 Qf2 34.Nf3–+) 33.Qe6 Re6 34.Nf3 Kf7 35.Ra4 a6 36.Nd4 (36.h4 h6–+) 36...Re5–+ 37.Kg3? (better is 37.Nb3–+) 37...Rd5 38.Ne2 Rd3 39.f3 h5 40.Kf2 Ke6 (40...h4 41.f4–+) 41.f4 (41.h4 Rd2–+) 41...Kd5 42.fg5 Ne4 43.Kg1 (43.Ke1 fg5 44.h4 Re3–+) 43...fg5 44.h4 (44.Kh2 Rd2 45.Ra5 Ke6–+) 44...Rd1 (better is 44...Rd2!? 45.Ra5 b5 46.hg5 Re2 47.g6–+) 45.Kh2 Rd2 46.Ra5 (46.Ng3 Ng3 47.Kg3 Rd4 48.Ra5 Ke6 49.hg5 Rd5–+) 46...b5 47.Nc1 (47.Ng3 Ng3 48.Kg3 gh4 49.Kh2–+) 47...g4 (47...g4 48.Ra3 g3 49.Kh3 Rd1 50.Rd3 Rd3 51.Nd3 Nf2 52.Kg3 Nd3–+) 0–1. Janzekovic,Klemen (1860) – Kelemen,Miljenko (2055), Ptuj SLO, Open, 2014.

4.Nf3 Qb6 5.Qe2 Nf6 6.h3 (better is 6.Ne5!? d6 7.Nc4+/–) 6...Nc6 7.Nc3 Nd4 8.Nd4 Bd4 (worse is 8...ed4 9.Na4 Qc6 10.Nc5 Qc5 11.e5+=) 9.Rb1 Qc5 10.Nb5 Qc2 11.Qd3 Qc5?? (11...Qc6 12.Nd4 ed4 13.e5=) 12.Nd4?? (better is 12.Ba3 Bf2 13.Kd1+–) 12...Qd4 13.Qd4 ed4 14.f3 0–0 15.Bb2+= d5 16.e5 Nd7 17.Bd4 a6 18.f4+/– Re8 19.Be2 Nf8 20.0–0 b5 21.f5 g6 22.g4 Nd7 23.Rbe1 Ne5 24.Bd1 f6 25.fg6 hg6 26.Rf6 Nf3 27.Bf3 Re1 28.Kf2 Re4 29.Be4 de4 30.Rg6 Kf7 31.Rb6 Be6+/– 32.Ke3 Ba2 33.g5 Bb1 34.h4 Bd3? 35.h5 a5 36.g6 Kg8 37.h6 (37.h6 Bc4 38.h7 Kf8 39.Rb7 a4 40.h8Q Bg8 41.Rf7 Ke8 42.Qg8) 1–0. pvaras (2410) – hockhin (2395), net–chess.com, 2010.

4.Nf3 Qb6 5.Ne5? Bf2 6.Ke2 Bd4 7.Nf7 d5–+ (7...Kf7?! 8.c3 d5 9.Qb3 Bg4 10.Kd3–+).

4.Nf3 Bc5 5.Nc3 Nf6 6.Bc4 0–0 7.0–0 d6 8.Bb2 Bg4 9.h3 Bh5 10.Rb1 Rc8 11.Be2 Bb4 12.Nh2 Bg6 13.Bf3 Nd4 14.a3 (14.Ng4!?+=) 14...Nf3–/+ 15.gf3 Ba5 16.Ng4 Nh5 17.Kh2 Qh4 18.Rg1 f5 19.ef5 Rf5 20.Ne3 Bc3 (worse is 20...Qf2 21.Rg2 Qf3 22.Nf5 Qf5 23.Nd5–+) 21.Bc3 Rc3! (21...Qf2?! 22.Rg2 Qf3 23.Nf5 Qf5 24.Rb7 Qf4 25.Kg1–/+) 22.Rb4 (22.dc3 Qf2 Double attack) 0–1. De Andrades,Jose JL – Barnabe,Wagner, BRA TCS corr CXEB, 2000. (=1.e4 c5 2.b4 Nc6 3.bc5 e5)

4.Nf3 Bc5 5.Ne5? Ne5 6.d4+= Bd4 (better is 6...Qf6 7.Be3 Nc6+=) 7.Qd4+/– d6 8.f4 (better is 8.Ba3+/–) 8...Qa5?? (better is 8...Qh4 9.Qf2 Qf2 10.Kf2 Ng4 11.Kf3 N4f6+=) 9.Bd2+– Qc5 10.Qc5 dc5 11.fe5 Ne7 12.Bb5 Bd7 13.Bd7 Kd7 14.Nc3 Nc6 15.Rd1 Ke6 16.Nb5 Rac8 17.Nd6 Rc7 18.Bf4 Nb4 19.Nb5 Re7 20.Rd6 1–0. Plotkin,Alex – Schaefer,Daniela, GER–ch U10 Willingen, 2005. (=1.e4 c5 2.b4 Nc6 3.bc5 e5)

4.Nf3 Nc6 5.Ne5? Bf2?? 6.Kf2= Ne5 7.d4 Ng6 (7...Nc6 8.Nc3 Qf6 9.Ke3=) 8.c4 N8e7 (8...Qh4!? 9.g3 Qe4=) 9.Bd3+= 0–0 10.Rf1 Nc6 11.d5?? (better is 11.Be3+/–) 11...Qf6–+ 12.Kg1 Qa1 13.Nd2 (13.dc6 Qd4 14.Kh1 dc6 15.Qc2–+) 13...Qd4 14.Kh1 0–1. nickbarletta – Danno12, ChessWorld.net, 2005. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

4.Nf3 Bc5 5.Ne5? Qf6 6.Nd3 Bf2 7.Nf2 Qa1 –/+.

4.Nf3 d5 5.Ne5 Qf6 (5...de4!? 6.Bb5 Nd7=) 6.d4+= Bb4? (better is 6...de4!? 7.c3 Bd6 8.Bb5 Kf8+/–) 7.c3+– Bc3?? (better is 7...Bd6 8.Bb5 Kf8 9.ed5 a6+–) 8.Nc3 Nc6 (8...Ne7 9.Bb5 Bd7 10.Qb3+–) 9.Nc6 (better is 9.Nd5 Qd8 10.Bb5+–) 9...Qc6 (9...bc6 10.ed5 Ne7 11.dc6 Nc6 12.Qe2 Kd8 13.Qb5 Re8 14.Be2+–) 10.Nd5 Nf6 11.Rb1 Nd5 12.Bb5 Qb5 13.Rb5 Nc3 14.Re5 Kd8 15.Qb3 f6 16.Rc5 Re8 17.Rc3 Re4 18.Kd1 Bg4 19.f3 Rd4 20.Rd3 Rd3 21.Qd3 Bd7 22.Qh7 Rc8 23.Qg7 Ba4 24.Kd2 Rc2 25.Kd3 b5 26.Qf6 Kc7 27.Bf4 Kc8 28.Qe6 Kb7+– 29.Rc1 Rc1 30.Bc1 b4 31.Qe7 Ka6 32.Qb4 Bb5+– 33.Kc3 Kb6 34.Be3 Kc6 35.Qc5 Kb7 36.Qb5 Kc7 37.Bf4 Kc8 38.Qe5 Kb7 39.Kc4 Kb6 40.Qc5 Kb7 41.Kb5 a6 42.Ka5 Ka8 43.Qc6 Ka7 44.Qc7 Ka8 45.Qb8# 1–0. BLACKBEARD – Seanypop, ChessWorld.net, 2004.

4.Nf3 Qf6 5.Bb2 Ne7?? 6.Be2 (6.Be5!? Qc6 7.Nc3+/–) 6...d5 (better is 6...Bf2!? 7.Kf2 Qb6 8.d4 Qb2=) 7.Be5+= Qc6 (7...Qg6 8.d4 de4 9.dc5 ef3 10.Bf3+= (worse is 10.gf3 Nbc6 11.Bd6 Bf5+=)) 8.Nc3 Nd7 9.0–0 de4+= 10.Ne1 Nf5 11.Bf4 Bd6 12.Bd6 Nd6+= 13.Bg4 Ne5 14.Bc8 Rc8 15.f4 Nec4 16.Kh1 0–0 17.Ne2 Nf5 18.c3 e3 19.d3 Rcd8 20.Qc1 Nd2–+ 21.Rg1 Qh6 22.Qa3–/+ a6 23.Qc5 Qh5–+ 24.Nf3?? Ng3!! 25.Ng3 Qc5 26.Nd2 ed2 27.Rad1 Rd3 28.Ne2 Re8 (28...Re8 29.Nd4 Qc3–+) 0–1. gstevenson (2235) – tundeski (2550), net–chess.com, 2009.

4.f4 Nc6 5.Nf3 Nf6 6.fe5 Ne4 7.d4 Nd4 8.Nd4 Qh4 9.g3 Ng3 10.hg3 Qe4 (better 10...Qg3!? 11.Kd2 Bd4–/+) 11.Qe2+= Qh1 12.Bb2 (12.Nf5 0–0 13.Qg4 g6 14.Nh6 Kh8+=) 12...b6 (12...Qg1 13.Nf5 0–0 14.Qg2 Qg2 15.Bg2=) 13.Nd2= Bb7 14.0–0–0 Qh6 (14...Bd4!? 15.Bd4 Bd5=) 15.Nf5+– Qg6 16.Nd6 Bd6 17.ed6 Kf8 (17...Qe6 18.Bg7 Rg8 19.Qe5+–) 18.Qe7 Kg8 19.Bd3 (19.Qd7?! Bd5 20.Qe7 Be6+–) 19...Qe6 20.Re1 Qe7 21.de7 (21.Re7?! Bc6+–) 21...Re8 22.Nc4 (22.Nc4 d5 23.Nd6+–) 1–0. marekt – arvek, ChessWorld.net, 2017. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

4.g3 d5 5.ed5 Qd5 6.Bb5 (6.Qf3 Nf6 7.Qd5 Nd5+=) 6...Bd7 7.Bd7 Nd7 (7...Kd7?! 8.Nf3 Qe4 9.Kf1=; 7...Qd7?! 8.Nc3+=) 8.f3?? (better is 8.Qf3 Bf2! 9.Kf1 Qc4 10.Ne2–/+) 8...Qd4–+ 9.Qe2 (9.Nh3 Qa1 10.Nc3 Ngf6–+) 9...Qa1 10.Nh3 (10.Nh3 Qb1 11.Qd1–+). pikelet – TheWelshKnight, ChessWorld.net, 2014.

4.h3 Nf6 5.Bb5? (5.Nc3 0–0+=) 5...0–0 (better is 5...Qb6 6.Nc3 Bf2 7.Kf1 Bh4–+) 6.c4?? (better is 6.Nc3–/+) 6...Ne4–+ 7.d3 (7.Ba3 Bf2 8.Kf1–+) 7...Nf2 8.Qf3 Nh1 9.Be3 (9.Ne2 a6 10.Ba4 Nc6–+) 9...Be3 10.Qe3 a6 11.Ba4 Qa5 (11...Qa5 12.Kf1 Qa4–+) 0–1. Backdoor – Danno12, ChessWorld.net, 2005. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

4.c3 Nc6

5.Bc4 Nf6 6.d3 b5 7.Bb3 = (7.Bb5 Qb6 8.d4 Qb5 9.dc5 Ba6–+).

5.Bc4 Nf6 6.d3 Qb6 7.Qf3 d6 8.Nd2 (better is 8.Bb3=) 8...Nd4?? (better is 8...Bg4 9.Qg3 h5=) 9.cd4+– Bd4 10.Rb1 Qc7 11.Bb5 (11.Ne2 Bb6+–) 11...Bd7 12.Bd7 Qd7 13.Ne2 Bb6 (13...Bc5 14.Qh3 Qh3 15.gh3+–) 14.0–0 (14.Nc4 Bc5 15.Be3 Be3 16.Ne3 0–0+–) 14...0–0 15.Nc4 Bc5 16.Bg5 (16.Nc3 Rab8 17.Bg5 Ng4+–) 16...Ne8 (16...Ng4 17.Qh3+–) 17.Ng3 (17.Be3 Be3 18.Qe3 b5+–) 17...f6 (17...b5 18.Nb2+–) 18.Bd2 (18.Be3 b5 19.Bc5 dc5+–) 18...g6 (18...b6 19.Be3+–) 19.Ne3 (better is 19.h4+–) 19...Nc7 (19...Be3 20.Be3 b5+–) 20.Rb7 Qc6 21.Rb3 (21.Rb2 Be3 22.Qe3 Ne6+–) 21...Ne6 (21...Qa4 22.Rfb1 Qa2 23.R3b2+–) 22.Qg4 Nd4 23.Ngf5 Kh8 24.Nd4 Bd4 25.Rc1 (25.Rc1 Qe8 26.Nc4+–) 1–0. Andersen,Harry (1735) – Rangoy,Tormod (1655), Sarpsborg CC–ch, 2002. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

5.Bc4 Nf6 6.d3 d5 7.ed5 Nd5 8.Nf3 0–0 9.0–0 Bg4 10.h3 Bh5 11.a4 Qd7 (11...Qd6 12.Re1+=) 12.Bb5 (12.Ne5 Qf5 (12...Ne5? 13.Qh5 f6 14.Bd5 Qd5 15.d4+–) 13.Ng4 Na5 14.Bd5 Qd5=) 12...a6 13.Bc6 Qc6 14.g4 Bg6 15.Ne5 Qc7 16.Qe1? (better is 16.d4 Bb1 17.dc5 Qe5 18.Rb1 Nc3 19.Bb2 Ne2 20.Kg2 Qe4 21.f3+=) 16...Bd3!–+ 17.Nd3 Qg3 18.Kh1 Qh3 (18...Qd3?! 19.Kg2–+) 19.Kg1 Qg4 20.Kh2 Qh5 21.Kg2 Qg6 22.Kh1 Qd3 23.c4 (23.f3 Rfe8 24.Qd1 Qf5–+) 23...Qh3 24.Kg1 Qg4 25.Kh1 Rae8 26.Qd2 Qh3 27.Kg1 Bd6 28.f4 Bc5 29.Rf2 (29.Qd4 Bd4 30.Be3 Re3 31.cd5 Re1) 29...Nf4! 30.Ra3 (30.Qf4 Re1#) 30...Qg2 0–1. edwinredo (1695) – vortx (1930), gameknot.com, 2010. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

5.Bc4 Nf6 6.Qe2 Qa5 =.

5.Nf3 Qb6 6.Qe2 Nf6 7.d3 Ng4–/+ 8.Be3 Ne3 (8...Be3 9.fe3 Ne3 10.Na3–+) 9.fe3–+ Be3 10.Nbd2 0–0?? (better 10...Qb2 11.Rd1 Bc5–/+) 11.Nc4+– Qc5 (better 11...Qc7 12.Ne3 Ne7+–) 12.a4?? (better 12.Qe3 Qe7 13.Rb1+–) 12...Bf4 (12...Bh6 13.Rb1–/+) 13.g3 Bh6 14.Bh3 (14.Rb1 Qe7–/+) 14...d6 (better 14...d5!? 15.ed5 Bh3 (15...Qd5?! 16.Bg2–/+) 16.dc6 Qc6–+) 15.Bc8=+ Rac8 16.Rb1 Nd8 17.Rb7?? (better 17.Nh4 g6 18.Rb5=+) 17...Nb7–+ 18.g4 (18.Nh4 g6 19.Qg4 d5–+) 18...Bf4 19.h4 White intends g5 (19.Nfd2 Na5 20.Na5 Qa5–+) 19...Na5 20.Na5 (20.Nfd2 Bd2 21.Nd2 Qc3–+) 20...Qa5 21.Kf2 (21.0–0 Rc3 22.Ra1 Qc5 23.Kh1 Rc2–+) 21...Rc3 22.g5 (22.Ra1–+) 22...Qc5 23.Kf1 Rc1 (23...Rc2!? 24.Qe1–+) 24.Kg2 Rc2 (24...Rc2 25.Re1 Qc3–+) 0–1. Cirovic,Zeljko – Di Giandomenico,Alfonso (1610), FICGS, 2013. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.c3 Nc6)

5.Nf3 Nf6 6.d4 ed4 7.cd4 Bb4 8.Bd2 Ne4 9.Bb4 Nb4 10.Bd3 d5 11.Qa4 Nc6 12.0–0 0–0 13.Nbd2 Nd2 14.Nd2 Qg5 15.Nf3 Qf4 16.Bb5 Bg4 17.Bc6 Bf3 18.gf3 (18.Bd7!? Qg5 19.Bh3–/+) 18...bc6–+ 19.Qc6 Qf3 20.a4 (20.Qa4 Qg4 21.Kh1 Rfe8–+) 20...Rac8 21.Qd6 Qg4 22.Qg3 Qd4 23.Rad1 Qc4 24.Kh1 Rc6 25.Rc1 (25.Rfe1 Re6 26.Rg1 g6–+) 25...Qe4 (25...Qa4 26.Rce1–+) 26.f3 (26.Qg2 Rc1 27.Rc1 Qa4 28.Qd5 Qf4–+) 26...Qe6 (26...Qa4!? 27.Ra1 Qc4 28.Rg1–+) 27.Rc6 Qc6 28.Rg1 g6 29.h4?! (29.Qf4 Qc4 30.Qd2 Re8–+) 29...d4 30.h5 Qd5 (30...Qa4 31.Qd6 Qb3 32.Qf6–+) 31.hg6 (31.Qg4 Rd8–+) 31...fg6 32.Kg2 d3 (32...Qa2!? 33.Qf2 Qa4 34.Rb1–+) 33.Rd1 Qb3 34.Rd2 Qa4 35.Qd6 Qc4 36.Rd3 Re8 37.Qd5 Qd5 38.Rd5 Kf7 39.Ra5 Re7 40.Kg3 h6 41.Kg4 Rb7 42.f4 Kg7 43.Ra6 Rf7 44.Ra5 h5 45.Kg3 Kf6 46.Ra6 Kf5 47.Ra5 Ke4 48.Ra4 Kd5 (48...Kd3 49.Ra6–+) 49.Ra5 (49.Kh4–+) 49...Kc4 50.Ra6 Rg7 51.Kh4 Kb5 52.Ra1 a5 53.Kg5 Rg8 54.Kf6 (better is 54.Rb1 Kc5 55.Ra1–+) 54...Rf8 55.Kg6 Rf4 56.Kh5 a4 57.Kg5 Rb4 58.Kf5 Rb2 59.Ke4 Kb4 60.Kd3 (60.Rd1–+) 60...a3 61.Rc1 a2 62.Rc4 (62.Ra1–+) 62...Kb5 (62...Kb5 63.Rc2 Rc2 64.Kc2 a1Q–+) 0–1. the_elite_knight (1740) – vortx (1930), gameknot.com, 2010. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

4.Bc4 Nf6

5.Bb2? Qb6!? 6.Be5 Ne4?! 7.Qf3 (worse is 7.Bg7 Bf2 8.Kf1 Rg8=) 7...Nf2 8.Bg7+= (8.Qf7 Kd8 9.Qg7 Re8–+).

5.Bb2? Qb6!? 6.Be5 Bf2 7.Kf1 A) 7...Ne4 8.Qf3 (8.Bg7?! Bd4 9.Qe1 Bg7 10.Qe4 Kd8=) 8...f5 9.Qf5+/– (worse is 9.Bg7 Bd4 10.Qf5 Bg7 11.Qe4 Kd8+=); B) 7...Bd4 8.Bd4 Qd4–+.

5.Bb2? d5 6.ed5+= Bd6 (6...Bf2!? 7.Kf2 Qb6 8.Ke1 Qb2+=) 7.Nf3+= e4 8.Nd4 Qb6 (8...0–0 9.Qe2=) 9.Nb3 (9.Nb5 Bc5 10.0–0=) 9...Ng4 (9...Nbd7!?+=) 10.Qe2 (10.Bd4 Qc7 11.Bb5 Kd8 12.Bg7 Rg8+/–) 10...0–0 11.Nc3 Re8 12.0–0–0?? (better is 12.Ne4!? f5 13.f3+=) 12...Nf2+= 13.Na4 Qb4 14.Qf2 Qc4 (14...Qa4 15.Qd4 Be5–/+) 15.Rhf1? Qd5–/+ 16.Nc3 Qh5–+ 17.h3 f6 18.Ne2 Rf8 19.Rde1 Be6 20.Ned4? Bf7?? 21.Re4 Be5 22.Ba3 Rc8 23.Nf5= Nc6? 24.Rh4+– Qg6 25.Rg4 Qh5 26.Ng7 Bg6 27.Nh5 f5 28.Rg6! hg6 29.Ng3 Bg7 30.Ne2 a5 31.Nf4 b5 32.Ne6 Bh8 33.g4 b4 34.Bb2 a4 35.Nbd4 Na5 36.gf5 b3 37.fg6 ba2 38.Qf7 1–0. hypermode (2270) – tundeski (2550), net–chess.com, 2009. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Bc4 Nf6)

5.Nc3 0–0 6.Nf3 Nc6 7.0–0 a6 8.d3 b5 9.Bb3 h6 10.Be3 d6 11.h3 Bb7 12.Qe1 Rc8 13.Ne2 Qb6 14.Ng3 Nd4 15.Bd4 Bd4 (15...ed4 16.a4=) 16.Nd4 Qd4? (better is 16...ed4!? 17.a4 Qc5=) 17.Nf5+/– Qb6 18.Ne7 Kh8 19.Nc8 Bc8 20.Qe3 (20.a4 ba4 21.Ra4 Qc6+–) 20...Qd8 (20...Qe3 21.fe3 Bd7 22.a4+–) 21.f4 Nh5 22.f5 Nf4 23.Kh2 Qf6 24.g3 Nh5 25.a4 b4 26.a5 Bb7 27.Ra4 d5 28.Rb4 Bc6 29.Rb6 d4 30.Qf3 g6 31.fg6 Qg6 32.Qg4 (32.Qg4 Rg8 33.Bf7 Qg4 34.hg4 Rg4 35.Rc6 Ng3 36.Rg1+–) 1–0. Teichmann,E (2325) – Bennett,H (2000), Doeberl Cup, Canberra AUS, 2010.

5.Nc3 0–0 6.Nf3 d6 7.0–0 Nc6 8.d3 Bg4 9.Ne2 (9.Rb1!?=) 9...d5 10.ed5 Nd5 11.Bd5 Qd5 12.Nc3 Qd7 13.Ne4 Be7 14.h3 Bf3 15.Qf3 Nd4 16.Qd1 f5 17.c3 Nc6 18.Ng5 h6 19.Nf3 Qd5 20.Qb3 Qb3 21.ab3 Rad8 22.Rd1 e4 23.Ne1 ed3 24.Nd3 Rd7 25.Nb2 Rfd8 26.Be3 Bf6 27.Rd7 Rd7 28.Rd1 (worse is 28.Ba7 Bc3 29.Rd1 Nd4–/+ (29...Na7?! 30.Rd7 Bb2 31.Rb7=)) 28...Rd1 29.Nd1 a6 30.Bb6 Kf7 31.Kf1 Ke6 32.Ke2 g5 33.Kd2 h5 34.Nb2 Ne7 35.Bd8 g4 36.Nd3 Kd7 37.Be7 Be7 (worse is 37...Ke7 38.Nc5+/–) 38.hg4 fg4 39.f3 gf3 40.Ne5 Ke6 41.Nf3 Kf5 42.c4 Ke4 43.Ke2 Bd8 44.Ne1 Kd4 45.Nd3 Bg5 46.g3 Bh6 47.Nb2 (47.Nf2 Kc3–/+) 47...Kc3–+ 48.Na4 Kb3 49.Nc5 Kc4 50.Nb7 Bf8 51.Na5 Kb5 52.Nb3 Bg7 53.Kf3 Kb4 54.Nc1 Kc4 55.Ke4 a5 56.Kf5 a4 57.Kg6 (57.g4 hg4 58.Kg4–+) 57...Bb2 58.Ne2 a3 59.Kh5 a2 (59...a2 60.Nf4 a1Q–+) 0–1. Herbold,Manfred (2155) – Meertens,Martin (2150), Meran Cup Gold, 2009. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Bc4 Nf6)

5.Nc3 Qc7 6.Qe2 0–0 =.

5.Nc3 d6 6.d3 Bd4 (6...Bg4 7.f3 Be6 8.Be6 fe6 9.Rb1=) 7.Nge2 Nc6 8.Nd4 Nd4 9.Bg5 Be6 10.Nd5 Bd5 11.Bd5 Qa5 12.Bd2 Qc7 Attacks the backward pawn on c2 13.c3 Nc6 14.Bb3 0–0 15.0–0 Na5 16.Qf3 Nb3 17.ab3 b6 18.Ra6 Nd7 19.Rfa1 Rfc8 20.c4 Nc5 21.R6a3 Qd7 (21...Ne6 22.Qg4+=) 22.b4+/– Ne6 23.Qf5 (23.Be3 Qb7+/–) 23...h6 (23...Qb7!?+=) 24.Be3 Kf8? (better is 24...b5+/–) 25.Bb6!+–. Smagar,F – Benito Alba,E, corr ICCF EU/M/GT/173 (year?).

5.Nc3 d6 6.Nf3 0–0 7.h3 Nc6 8.0–0 Be6 9.Be6 fe6 10.d3 Nd4 11.Nd4 (11.Na4!? Rc8 12.Nc5 Rc5 13.c4=) 11...Bd4–/+ 12.Bd2 (12.Qe1 Rc8 13.Bd2 Qc7 14.Nb5 Qc2 15.Nd4 ed4 16.Bb4) 12...Rc8 13.Qe1 Nh5 (better is 13...Qc7 14.Nb5 Qc2 15.Nd4 ed4–/+ 16.Bb4) 14.Rb1? (better is 14.Kh2–/+ Qh4 15.g3 Qf6 16.f3) 14...Ng3–+ 15.Ne2 (15.Rb7 Qh4 16.Nb5 Nf1 17.Nd4 Nd2 (17...ed4?! 18.Kf1 Rc2 19.a3–+) 18.Ne6 Rf7 19.Rf7 Kf7 20.Qd2 Ke6–+) 15...Nf1 16.Nd4 ed4 (16...Nd2!? 17.Ne6 Qe8 18.Nf8 Nb1 19.Qb1 Kf8 20.Qb7 Rc2 21.Qa7–+) 17.Qf1 Rc2 18.Qd1 Qc7 19.f4 (19.Rb4 Ra2 20.Rd4 Rc2–+) 19...b6 (19...Ra2!? 20.Rc1 Qb6 21.Qg4–+) 20.Bb4 Rc6 (20...Rc8 21.Qg4 Qd7 22.f5 ef5 23.ef5 Ra2 24.Qe4–+) 21.e5 Rf4 22.Bd6 Qc8 (22...Rd6?! 23.ed6 Qd6 24.Qa4–+) 23.Kh2 (23.Qd2 Rf5 24.Rb2 Rc1 25.Kh2 Qc3–+) 23...Rc2 24.Qh5 (24.Qg1–+) 24...Rg2 25.Kh1 g6 (25...Qc6 26.Qh7 Kh7 27.a3 Rgf2 28.Kg1 Qg2) 26.Qh6 Qc6 (26...Qc6 27.Qf4 Re2 28.Qe4 Re4 29.de4 Qe4 30.Kh2 Qb1–+; 26...Rh2 27.Kh2 Qc2 28.Kg1 Qb1 29.Kh2 Qc2 30.Kg1 Qd1 31.Kg2 Qe2 32.Kg1 Rf1) 0–1. Bigelow,Horace Ransom – Kupchik,Abraham, Bradley Beach, 1929. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Bc4 Nf6)

5.d3 0–0 6.Nf3 d5 7.ed5 Nd5 8.0–0 (8.Ne5? Bd4 9.c3 Nc3–+) 8...Bg4 9.h3 Bh5 (9...Bd4 10.c3 Bc3 11.Bd5 Ba1 12.Bb7 Bf3 13.Qf3=) 10.Bb2 (10.g4 Bg6 11.Ne5 Qc7=) 10...Nc6 11.Nbd2 Nf4 12.Ne4 Bd4 13.c3 Bb6 14.Bc1 Kh8 15.Bf4 ef4 16.d4 Rc8 17.Be2 Re8 18.Bd3 Bd4 (18...Ba5!? 19.Rc1 Re7=) 19.cd4= Nd4 20.Neg5 Qd5 (20...Rc5 21.Qa4 (21.Nh7 Nf3 22.gf3 Rd5–+) 21...Nf3 22.Nf3 Bf3 23.gf3=) 21.Be4 (21.Nh7?? Bf3 (21...Nf3?! 22.gf3 Bf3 23.Qd2–+) 22.gf3 Nf3 23.Kh1 Red8–+) 21...Re4 22.Ne4 Qe4 23.Qd4 Bf3 24.Rac1 (24.Qd7 Qc6 25.Qf7 Bd5 26.Qf4 Qg6+–) 24...Rg8+= (24...Qd4?? 25.Rc8 Qd8 26.Rd8) 25.Rc4?? (better is 25.Qe4 Be4 26.Rc7+=) 25...Qg6–+ 26.g3 fg3 27.Qe3 gf2 28.Kf2 Qg2 29.Ke1 Bd5 30.Rd4 Rc8 31.Rd1 Kg8 32.a3 h6 33.Rf2 Qe4 34.Qe4 Be4 35.Rf4 Re8 36.Kf2 Bc6 37.Rdd4 f6 38.h4 Kf7 39.Rg4 g6 40.Rg1 Re5 41.Rb1 h5 42.Rb3 g5 43.Kg3 Re2 44.hg5 fg5 45.a4 Kg6 46.Rd6 Kf5 47.Rb4 Rg2 48.Kh3 g4 49.Kh4 Rh2 50.Kg3 Rh3 51.Kf2 Rf3 52.Ke2 Ra3 53.Rc4 Bf3 54.Kf2 g3! 55.Ke1 Ra1 (55...Ra1 56.Kd2 g2 57.Rc5 Kf4 58.Rf6 Ke4 59.Rc4 Kd5–+) 0–1. Husarik,Branko (2045) – Silar,Lubomir (2120), CZE–chT2c, 2004. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Bc4 Nf6)

5.d3 b5 6.Bb3 0–0 7.Nf3 d6 8.h3 Be6 9.0–0 a5 10.Ng5 Bb3 11.ab3 (11.cb3?? Bd4 12.Na3 Ba1 13.Nb5 Qb6–+) 11...d5 12.ed5 Nd5 13.Ne4 Bb6 14.Bb2 f6 15.Nbd2 Nc6 16.c4 Nf4 17.cb5 Nb4 18.Ba3 (18.Nc4 Nbd3 19.Ba3 Rf7+=) 18...Qd3 19.Qf3 Qb5 20.Nc4 Bd4 21.Rad1 Rfd8 22.Rd4 Rd4 (22...Nh3 23.Qh3 ed4 (worse is 23...Rd4 24.Ned6 Rd6 25.Nd6+–) 24.Qe6 Kf8+=) 23.Nf6+= gf6 24.Qa8 Kg7 25.Qa5 (worse is 25.Na5 Qf1 26.Kh2 Ne2 27.Qf8 Kf8 28.Bb4 Rb4 29.Nc6 Qg1) 25...Qc6 26.Ne3 Qe4 27.Qc7 Kg6 28.Qc8 Kf7 29.Bb4 Rb4 30.Qd7 Kf8 31.Ra1 Rb3?? (31...Qb7 32.Qd8 Kg7 33.Ra8+–) 32.Qd8 (32.Qc8 Kg7 33.Ra7 Qb7 34.Rb7 Rb7 35.Qb7 Kg6 36.Qc8 Ne2 37.Kh2 Kf7 38.Qd7 Kg6 39.Qe8 Kh6 40.Nf5 Kg5 41.Qg8 Kf5 42.Qg4) 32...Kf7 33.Qd7 Kf8 34.Qd8 Kf7 35.Qc7 Kf8?? 36.Qd8 Kf7+/– 37.Ra7 Rb7 38.Qa8 Ra7?? 39.Qa7 Kf8 40.Qb8 Kf7 41.Qc7 Kf8 42.Qc2 Qg6 43.Kh2 Qc2 44.Nc2 Kg7 45.g3 Ne2 46.Kg2= Kg6 47.f3 f5 48.Kf2 Nc3 49.Ne3 f4 50.Ng2 fg3 51.Kg3 Nd5 ½–½. Mengus,Michel (1720) – Scharff,Georges (1630), Vitrolles Majeur op, 2004. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Bc4 Nf6)

5.d3 b5 6.Bb3+= d5 7.ed5 Nd5 8.Qh5 0–0 9.Nf3 Nf6 10.Qg5.

5.d3 d5 6.ed5 Nd5 7.Qf3 Be6 8.Ne2 0–0 9.0–0 Nc6 10.Nd2.

5.d3 d5 6.ed5 Nd5 7.Nf3 f6 8.0–0= Nc6 (8...Bg4 9.Bd5 (9.c3 Nc6 10.Re1) 9...Qd5 10.Nc3=) 9.Bd5 Qd5 10.Nc3 Qf7 11.Ne4 (11.Be3 Bb4 12.Ne4 f5+=) 11...b6 (11...Be7 12.Re1=) 12.c3 (better is 12.Nc5 bc5 13.Nd2=) 12...f5?? (better is 12...Be7=) 13.Nc5+/– bc5 14.Re1 Qh5 (better is 14...0–0!? 15.Ne5 Ne5 16.Re5 c4+/–) 15.Qa4 Kd7?? (15...Bd7 16.Ne5 Ne5 17.Re5 Kf8+–) 16.Ne5 Ke7 17.Qc6 Rb8 18.Qc7 (18.Qc7 Kf8 19.Qd6 Ke8 20.Nd7 Qe2 21.Re2 Kf7 22.Qe6) 1–0. De Leeuw,A – De Groot,R, Soest op, 1995. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Bc4 Nf6)

5.Qe2 0–0 6.Nf3 d5 7.Bd5 Nd5 8.ed5 e4 9.Ng1 Qf6 10.Nc3=+ Bg4 11.Qf1 Re8 12.Nge2 Na6=+ 13.a3 Be2 14.Ke2 Re5 15.Rb1= Rf5 16.Nd1 Nc7 17.Bb2 Qg6 18.Ne3 Be3 19.de3 Rd5 20.Bd4 Ne6 21.c3–/+ Rc8 22.Kd2 Ra5 23.Rb7 Nd4 24.ed4? Qh6 25.Kc2 Ra3 26.Rb2 Rac3 27.Kb1 Qg6 28.Qe2 h6 29.Rd1 Qg5 30.Qa6 Rc1 31.Rc1 Rc1 32.Ka2 Qd5 33.Rb3 Rc3 34.Qa4 Rb3 35.Qb3 Qd4 36.Qb8 Kh7 37.Qf4 Qd5 38.Ka3 g6 39.Qf6 Qf5 40.Qd4 Qa5 41.Kb3 Qb6 42.Qb6 ab6 43.Kb4 f5 44.g3 g5 45.Kb5 Kg6 46.Kb6 f4 47.Kc5 e3 48.fe3 fe3 49.Kd4 e2 50.Kd3 e1Q (51.Kd4 Qd2 52.Ke4 Qh2–+) 0–1. Poenisch,Eckehard (2240) – Krug,Norbert (2255), Oberliga Ost–A, 2001.

5.Qe2 Nc6 6.Nf3 0–0 7.Nc3 Nd4 8.Nd4 ed4 9.Na4 Ne4 10.0–0 (10.Bd3 Nf6 11.0–0–/+) 10...d5–/+ 11.Bd3 (11.Nc5 Nc5 12.Bb3 Re8+=) 11...Re8 12.Qh5 (better is 12.Nc5 Nc5 13.Qf3–/+) 12...Nf6 (better is 12...Bd6–+) 13.Bh7= Nh7 14.Nc5 Qd6 15.Nd3 Re6 16.f4 Nf6 17.Qf3 Ne4 18.Ne5 Rh6 19.d3 Nc3 20.Bd2 f6 21.Ng4 Rg6?? (better is 21...Bg4 22.Qg4 f5=) 22.f5+– Rg5 23.Bg5 fg5 24.f6 Bg4 (24...Qf4 25.Nh6! Kh7 26.fg7 Be6+–) 25.f7 (25.Qg4?! gf6 26.Rae1 Rf8+–) 25...Kf8 26.Qg4 1–0. Surtmann,Leopold – Luger,Andreas, Leonding op 9th, 2006.

5.Qe2 Nc6 6.Nf3 h6 7.Ba3 Ba3 8.Na3 a6 9.0–0 Qe7 10.Qe3 0–0 11.Nh4 d6?? (better is 11...Qd8+=) 12.Ng6+/– Qe8 13.Bb3 Nd4 14.Nf8 Qf8 15.f4 (15.c3 Nb3 16.ab3 Be6+–) 15...Qe7 16.Nc4 Be6 (better is 16...Bg4!? 17.Rae1 b5+–) 17.fe5+– de5 18.Ne5 Bb3 19.Qd4 Bc2 20.d3 Rd8 21.Qc3 Ba4 22.Rac1 Ne8?? (22...Re8 23.Rf5 Bb5+–) 23.Rf7 Qg5 24.Rf3 Kh7 (24...Nd6 25.Rg3 Qe7 26.Ng6+–) 25.Nf7 (25.Nf7 Qe7 26.Nd8 Qd8 27.d4+–) 1–0. vreinoso – subedi (1710), gameknot.com, 2014. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Bc4 Nf6)

5.Qf3 0–0 6.Bb2 (6.Nc3 Nc6–/+) 6...Nc6 7.Nc3 Nd4 (7...Qb6 8.Rb1 d6 9.Nge2–/+) 8.Qd3 Qb6 (8...b5!? 9.Bb3 Bb7–/+) 9.Rb1+= Qc7 (9...d6 10.Na4 Qc6 11.Nc5 dc5 12.Nf3 Qe4 13.Qe4 Ne4 14.Ne5 Nc2 15.Ke2+=) 10.Nf3 (10.Nge2 Ne2 11.Qe2 d6=) 10...Nf3 11.Qf3 (11.gf3!? d6 12.Nd5 Nd5 13.Bd5=) 11...Bf2–/+ 12.Qf2 Qc4 13.d3 Qe6 (13...Qc6!?–/+) 14.0–0= a6 (better is 14...d6!?=) 15.Ba3+= d6 16.Rb6 (16.Qb6!? Ne8 17.Rf3+=) 16...Rd8= 17.h3 (17.Bc1 Rf8=) 17...Ne8 (17...Qe7 18.d4=) 18.Nd5+= f5? (better is 18...f6+=) 19.Qf5 (19.Qh4!? Bd7 20.Rf5 h6+–) 19...Qf5 20.ef5 (20.Ne7 Kf7 21.Nf5 Ke6+–) 20...Kf7+/– 21.g4 h6 (21...a5 22.c4+/–) 22.h4 (22.c4 Rb8+/–) 22...Ra7 (22...a5 23.Rfb1+/–) 23.g5+– hg5 24.hg5 g6 25.f6 Be6 26.Ne7 Ba2 27.Rf2 Be6 28.Rh2 Nf6 29.gf6 Kf6 30.Bd6 Raa8?? 31.Rf2+– Bf5 32.Nf5 (32.Nf5 gf5 33.Bf8 Kf7 34.Rf5 Ke8 35.Bc5+–) 1–0. pallen (2220) – kc (2260), net–chess.com, 2007. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Bc4 Nf6)

5.Qf3 Nc6 6.Bb2 Qb6 7.Bc3 0–0 8.Ne2 d6 9.d3 Bg4 10.Qg3 Be2 11.Ke2 Nd4 12.Kd1 Bb4 13.Bb3 Nb3 14.ab3?? (Better is 14.cb3 Rfc8 15.Bb4 Qb4 16.Nd2–/+) 14...Bc3–+ 15.Nc3 Qd4 16.Kd2 Rfc8 17.Nb5 (17.Rhc1 Qc3 18.Kd1–+) 17...Ne4 18.Kd1 Qa1 19.Ke2 Ng3 20.hg3 Rc2 21.Ke3 Qh1 22.Nd6 (22.Nd4 Qe1 23.Kf3 Qf2 24.Kg4 Qd4 25.Kh3 Rc1 26.Kh2 Qg4 27.b4 Qh5) 22...Qe1 23.Kf3 Qe2 0–1. Seanypop (1710) – Tihomir Glowatzky (1920), ChessWorld.net, 2003.

5.Qf3 Nc6 6.Ne2 –/+.

5.Nf3 0–0 6.0–0 (6.Nc3 Nc6=) 6...Nc6 (better is 6...Ne4 7.Nc3 Nc3 8.dc3 d6+=) 7.Bb2? (7.Nc3 d6=) 7...d6 (better is 7...Ne4 8.Bb3 Re8–+) 8.Nc3= Bg4 9.Nd5? (better is 9.h3 Bh5 10.Rb1+=) 9...Ne4–+ 10.Re1?? (better is 10.Be2–+) 10...Bf2 (better is 10...Nf2 11.Qe2 Nd3 12.Kh1 Nb2–+) 11.Kh1 Be1 12.Qe1 Bf3 (12...Nf6 13.Qe2–+) 13.gf3 Nf6 14.Ne3 Rc8 15.Bd5 Nd5 16.Nd5 Ne7 17.Ne3 Qd7 18.Qh4 Nf5 19.Qf2 Ne3 20.de3 Rc4 21.Rc1 Rfc8 22.c3 Ra4 23.a3 Rc6 24.Rc2 Rcc4 25.e4 f5 26.ef5 Qf5 27.h4 Rh4 28.Kg1 Qh5 (28...Qh5 29.Qg2 Raf4–+) 0–1. clavecinist (2090) – marmite (2125), net–chess.com, 2008.

5.Nf3 Ne4 6.0–0 d5 7.Bb5 Bd7 8.Bd7 Nd7 (worse is 8...Kd7 9.Ne5 Ke8 10.d4+=) 9.d4 ed4 10.Qd3 0–0 11.Nd4 (better is 11.Nbd2–+) 11...Ne5 12.Qd1 Qh4 13.Nf3 (13.c3–+) 13...Bf2 14.Kh1 (14.Rf2 Qf2 15.Kh1–+) 14...Ng3 0–1. interloper – EytonWiener, ChessWorld.net, 2015.

4.Nf3 Nc6

5.Ba3 Ba3 6.Na3 Nf6 7.Nb5 (Better is 7.Bb5!?=+) 7...Ne4–/+ 8.Ne5?? (Better is 8.c3 d5 9.d3–+) 8...Ne5–+ 9.f3 (9.d4 Nc6 10.Bd3–+) 9...Qh4 10.g3 Ng3! 11.Nd6 Kf8 12.hg3 Qg3 13.Ke2 Qf3 14.Ke1 Qh1 15.Qe2 Qh4 16.Kd1 Qd4 17.Rb1 Qd6 18.Rb5 Ng6 19.Qf2 Qa3 20.Bc4 d5 21.Bd5 Bg4 22.Bf3 Bf3 23.Qf3 Qf3 24.Kc1 Qf1 25.Kb2 Qb5 26.Kc1 Re8 27.Kd1 Qf1# 0–1. Seanypop – marekt, ChessWorld.net, 2003.

5.Bb2? Qb6 6.Qe2?? (better 6.Na3 Bf2 7.Ke2–/+) 6...Qb2–+ 7.Nc3 (7.Qd1 Qa1 8.Bc4 Nf6–+) 7...Qa1 8.Nd1 (8.Qd1 Qd1 9.Kd1 Bf2–+) 8...Nf6 (8...Qa2 9.c3–+) 9.g3 (9.Qc4 Bf2! 10.Kf2 Qd1–+) 9...Ng4 10.Ne5 (10.Qc4 d6 11.Qc3–+) 10...Bf2 (10...Bf2 11.Qf2 Nf2 12.Kf2 Qd1–+) 0–1. Kehayov,Yulian – Tanda,Giovanni (2025), FICGS, 2010.

5.Bb2? d6 6.Bb5 Nge7 (6...Qb6 7.Qe2 Bf2 8.Qf2 Qb5 9.Ba3–/+) 7.d4 (7.0–0 0–0=+) 7...ed4 (7...Qa5 8.Nc3 Ba3 9.Qc1=+) 8.0–0 (8.Bd4 Qa5 9.Nc3 0–0–/+) 8...0–0 (better 8...Qb6 9.Na3 0–0–/+) 9.Nd4? (9.Bc6 Nc6 10.Nd4 Qh4 11.Nc6 bc6=+) 9...Nd4?? (9...Qb6 10.Nc6 bc6 (10...Nc6?! 11.Nc3=) 11.Bg7 Kg7–+ (11...Qb5?! 12.Bf6 Ba6 13.Be7=)) 10.Bd4= a6 11.Ba4 Be6 12.c3 Qb6 (12...b5 13.Bb3 Nc6 14.Qd3=) 13.Re1 (13.Bb3 Rae8=) 13...Rad8 (13...Qb2 14.Nd2 Bd4 15.cd4 Qd4 16.Bb3=+) 14.Qd3 (14.Qd2 d5 15.e5 Nf5 16.Bc5 Qc5=+) 14...Ng6 (14...Qa5 15.Bc2=+) 15.Nd2= d5 (15...Ne5 16.Qe3=) 16.Nb3 (16.Reb1!? Qc7 17.Bc5 Qc5 18.Rb7=+) 16...Bd4= 17.Qd4 (17.Nd4!? de4 18.Qe4=+ (18.Re4? Bf5–+)) 17...Qc7=+ 18.e5? (better 18.Nc5=+) 18...b5–+ 19.Bb5 (19.Nc5 ba4 20.Na6 Qa5–+) 19...ab5 20.Nc5 (20.a4 ba4 21.Ra4 Ra8 22.Ra8 Ra8–+) 20...Rc8 21.Ne6 fe6 22.Rac1 (22.Rab1 Qc3 23.Qd1 Rc5–+) 22...Rf4 (22...Rf5 23.Rb1–+) 23.Qe3 (23.Qd3 b4–+) 23...Re4 24.Qg3 (24.Qd2 Re1 25.Qe1 Qe5–+) 24...Qc3! (worse 24...Ne5 25.Qh3 Qb6 26.Qg3 Re1 27.Re1–+) 25.f3 (25.Rc3 Re1; 25.Qc3 Rc3 Combination) 25...Re1 (25...Qe3 26.Re3 Rc1 27.Kf2 Rc2 28.Kf1 Re3 29.Qg4 Re5 30.g3–+) 26.Re1 Qb2 (26...Nf4 27.h3 Qd2 28.Kh2–+) 27.Qg4 (27.Qg5 Rc2 28.Kh1 Qc3–+) 27...Kf7 28.a4 (28.Qg5–+) 28...ba4 29.Qa4 (29.Qg5 a3 30.h4–+) 29...Rc7 (better 29...Rc2 30.Qa7 Kg8–+) 30.h3 Qd2 31.Qa1 (31.Rd1 Qe3 32.Kh2 Qe5 33.Kh1–+) 31...Rc2 (31...Nf4 32.Re2 Qe2 33.Qf1 Rc1 34.Kh2 Rf1 35.Kg3 Qg2 36.Kf4 Rf3) 32.Qa7 Ne7 (32...Ne7 33.Qe7 Ke7 34.Re2 Qe2 35.Kh2 Qg2) 0–1. Goldmund,Heike – Joubert,Hennie, FICGS, 2016. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6)

5.Bb2? d6 6.Nc3 Nf6 7.Bb5 a6 8.Bc6 bc6 +=.

5.Bb2? d6 6.Bc4? Qb6–+ 7.Qc1 Bf2 8.Kf1 Bc5 9.c3 (9.Nc3 Nf6–+) 9...h6 (9...Nf6 10.Qc2–+) 10.Na3 (10.d4!? ed4 11.cd4 Nd4 12.Bf7 Kf7 13.Bd4 Bd4 14.Qc4 Be6 15.Qd4 Ba2 16.Kf2 Qd4 17.Nd4–/+) 10...Nf6 11.d3 0–0 12.Nc2 (12.Rb1 Be6–+) 12...Be6 13.Bb3 (13.Be6 fe6 14.Ke1 d5 15.ed5 ed5–+) 13...Bb3 14.ab3 Qb3 15.Nd2 Qb6 16.Nc4 (16.Qb1 d5–+) 16...Qc7 (16...Qb5 17.Qb1 Ne4 18.N2a3 Ba3 19.Na3 Nd2 20.Ke2–+) 17.Ke2 (17.N4e3 a5–+) 17...d5 18.ed5 Nd5 19.g3 Qd7 20.N2e3 Rad8 21.Qc2 (21.Qb1 Qh3 22.Qf1 Qh5 23.g4 Qg6 24.Nd5 Qg4 (24...Rd5?! 25.Qf5–+) 25.Ke1 Rd5–+) 21...Ne3 (better is 21...b5!? 22.Nd5 Qd5 23.Ne3 Be3 24.Ke3 Qc5 25.Kd2 Qf2 26.Kc1 Qe3 27.Qd2 Qd3 28.Qd3 Rd3 29.Ra6–+) 22.Ne3 f5 23.Rhf1 (23.Rhe1 f4 24.Nf1 fg3–+) 23...f4 24.gf4 (24.Ng2–+) 24...ef4 25.Nc4 (25.d4 fe3 26.Rf8 Rf8 27.Qb3 Kh8 28.Rg1 Rf2 29.Ke3–+) 25...Qg4 26.Kd2 Qg2 (26...Qg2 27.Kc1 Qf1 28.Qd1 Qd3 29.Qd3 Rd3–+) 0–1. viermaaldomi (1775) – soulpower74 (1810), internet, 2007. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6)

5.Bb2? d6 6.Bc4 Nf6 7.Nc3 0–0 (7...Qb6 8.Rb1 Bf2 9.Kf1–/+) 8.h3? (better is 8.0–0!?+=) 8...Qb6–+ 9.Na4 Qb4 (9...Bf2!? 10.Kf1 Qa5 11.Kf2 Qa4 12.Qe2–+) 10.Bb3–/+ Qe4 11.Qe2 Bb4 12.Qe4 Ne4 13.c3 Ba5 14.0–0 Nf6 15.Ba3 Bc7 16.Rfe1 h6 17.d3 Bf5 18.Bc2 Nd5 19.Nh4 Bh7 20.Rab1 Rab8 21.c4 (21.Rb5 Nf4–+) 21...Nf4 (21...Nd4 22.Bb3 Nf4 23.Re3 Bd3 24.Rd1–+) 22.Nb2 (better is 22.Nf3–+) 22...Nd4 23.Bd1 Nd3 (23...Bd3?! 24.Nd3 Nd3 25.Re3–+) 24.Nd3 Bd3 25.c5 (25.Rc1–+) 25...Bb1 26.cd6 Bb6 27.d7 Rfd8 28.Bb3 (28.Bg4 f5 29.Bd6 Ra8 30.Be5 Rd7 31.Bd4 Rd4 32.Nf5 Bf5 33.Bf5 Rd2–+) 28...Nb3 29.ab3 Bd3 (29...Ba2 30.Bd6 Ra8 31.Be5 Bb3 32.Nf5 Rd7 33.Ng7–+) 30.Bd6 Ra8 31.Be5 Rd7 32.b4 (32.Nf3 a5 33.Bc3 Bc2–+) 32...Rc8 33.Nf3 Rc2 34.Bg3 Be2 35.Nh2 Rd1 (35...Rd1 36.Rd1 Bd1–+) 0–1. DanielMena – Danno12, ChessWorld.net, 2005. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6)

5.Bb2? d6 6.d4 ed4 7.Bd4 Nd4 8.Nd4 Nf6 9.f3 0–0 10.Be2 (10.Nb3 Qc7–/+) 10...Qb6 11.c3 Qb2 12.Nb3 Be6 13.Qc1 Qc1 14.Nc1 Rad8 15.Nb3 b6 16.Nd4 Bd4 17.cd4 Rc8 18.Nd2 Rc2 19.d5 Bd7 20.Bd3 Rc3 21.Ke2 Rfc8 22.Nb3 Kf8 23.Rhc1 Ke7 24.Rc3 Rc3 25.Rc1 Rc1 26.Nc1 Ne8 27.Nb3 Nc7 28.Nd4 f6 29.Nc6 (29.g4!?+/–) 29...Bc6= 30.dc6 d5 31.ed5 Nd5 32.Bh7 Kd6 33.Kd3 Nb4 34.Kc4 Nc6 35.Kb5 Nb8 36.a4 Kc7 37.a5 (better is 37.h4!?=) 37...a6–/+ 38.Kb4 (38.Kc4!? ba5 39.h4+=) 38...Nc6–+ 39.Ka4 Na5 40.g4 Nc4 41.Kb4 Ne5 42.Be4 g5 43.h3 Nc6 44.Kc4 Kd6 45.f4 (45.Kb3 b5–+) 45...gf4 46.h4 Ne5 47.Kd4 Ng4 0–1. Moran Canseco – De Andres Trelles, Valladolid CC semirap op, 1997. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.bc5 Bc5)

5.Bb5 Bf2 6.Kf2 Qb6 7.d4 Qb5 8.a4 Qb6 9.Be3 (better is 9.Nc3!? Nf6 10.Nd5 Ne4 11.Kf1–/+) 9...Nf6–+ 10.Ne5 Ne5 11.de5 Ne4 12.Ke2 Qg6 13.Ra3? (13.Kf1 0–0–+) 13...0–0 (13...Qg2!? 14.Kd3 Qg6 15.Ke2–+) 14.Kf1 Qf5 15.Kg1 Qe5 16.Bd4 Qe6 17.Re3 d5 18.Nd2 f5 19.Ne4 fe4 20.Rg3 Rf7 21.Qa1 Qf5 22.h4 Qf4 23.Rg7 Rg7 24.Bg7 e3 (24...Bd7 25.Qd4–+) 25.Qf6 (better is 25.Qd4!? Qd4 26.Bd4–/+) 25...Qf6–+ 26.Bf6 Bg4 27.Kf1 0–1. Miras,Eduardo – Ahmed,Abdo, Asturias Preferente op, 1996. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6)

5.Bb5 Bf2 6.Kf2 Qb6 7.d4 Qb5 8.d5 (8.Na3 Qa6 9.de5 f6=) 8...Nce7 (8...Nb4 9.Ne5 Nf6 10.c4 Qc5 11.Be3–/+) 9.Ne5 d6 (9...Qb6 10.Ke2+=) 10.Nf3 (10.Qd3 Qd3 11.Nd3 f5=) 10...Nf6 (10...f5 11.Nc3 Qa5=) 11.Nbd2 (11.Qd4 Qc5 12.Nbd2 Qc7=) 11...Ng4 (11...Qc5 12.Ke2–/+) 12.Kg3+= Qc5 (better is 12...f5 13.c4 Qb6+=) 13.Rf1? (better is 13.Qe2=) 13...Ne3–+ 14.Nb3 (14.Qe2 Nf1 15.Qf1 f5–+ (15...Qc2?! 16.Qc4 Qc4 17.Nc4+=)) 14...Nf1 15.Qf1 Qc7 (15...Qc2 16.Qb5 Bd7 17.Qb7–+) 16.Nfd4 (16.Nbd2 f5 (16...Qc2?! 17.Qc4 Qc4 18.Nc4+=) 17.Qc4 Qd7–+) 16...0–0 17.h3 (17.c4 f5–+) 17...f5 18.Qd3 fe4 19.Qe4 Nf5 20.Kh2 Nd4 21.Nd4 (21.Qd4 Qc2 22.Bb2 Qg6–+) 21...Bd7 (21...Bh3 22.Qd3 Bd7 23.Bb2–+) 22.Bf4 (22.Qd3 Rae8–+) 22...Rae8 23.Ne6 Be6 24.de6 Qe7 25.Re1 g6 26.Qd4? Rd8?? 27.Bh6 Qf6?? 28.Qd5+/– Qe7?? 29.Bf8 Rf8+= 30.Rd1 Rf6 31.Qd6 Re6 32.Qd8 Qf8 33.Qd4 (33.Qc7 Re7 34.Qc4 Rf7=) ½–½. federicos – CarlosLacerda (1640), internet, 2007. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6)

5.Bb5 Nf6 6.Qe2 0–0 7.Nc3 (7.0–0 d6=+) 7...d6–/+ 8.h3 Nh5 9.Bb2 Nb4 10.0–0 (Better is 10.Rc1!?–/+) 10…Ng3 (11.Qd1 Nf1 12.Bf1 Qb6–+) 0–1. bulldog_1313 – marekt, ChessWorld.net, 2003.

5.c3 Nf6 6.Bd3 0–0 7.0–0 d5 8.Qc2 d4 9.Ba3 Ba3 10.Na3 Bg4 11.Nc4 Bf3 12.gf3 Nh5 13.Rab1 Nf4 14.Kh1 Qh4 15.Rb7 Nh3 16.Nd6 Nf2 17.Kg2 Nh3 18.Nf5 Nf4 19.Kh1 Qf6 20.Bb5 Ne7 21.Ne7 Kh8 22.Nf5 g6 23.Ng3 h5 24.cd4 h4 25.de5 Qe5 26.Qc7 Qc7 27.Rc7 hg3 28.hg3 Ne6 29.Re7 Kg7 30.Bc6 Rh8 31.Kg2 Rab8 32.Rb7 Rbc8 33.Bd5 Nc5 34.Ra7 Rhf8 35.Rc1 Nd3 36.Rc8 Rc8 37.Rf7 Kh6 38.Kh3 Rc2 39.f4 g5 40.Rf6 Kg7 41.fg5 Rd2 42.Rf7 Kg6 43.Kg4 Ne5 44.Kf4 Nf7 45.Bf7 1–0. hhzk878 – mackieone, kurnik, 2012. (=1.e4 c5 2.b4 e5 3.bc5)

5.Nc3 a6 6.Bc4 Nf6 7.d3 0–0 8.0–0 d6 9.Bg5 Ne7 10.h3 Be6 11.Bb3 Rc8 12.Ne2 Qd7 (12...Nc6 13.c3 d5 14.ed5 Bd5 15.Bd5 Qd5 16.Bf6 gf6 17.d4 ed4 18.cd4+=) 13.Ng3 Ng6 14.Nh4 (14.Bf6 gf6 15.Qd2 Qe7+=) 14...Ne8 15.Nhf5 Kh8 16.Qh5 Nf4 17.Qg4 Ng6 18.h4 f6 19.Bd2 Bb3 20.ab3 Ne7 21.h5 Rg8?? (better is 21...d5=) 22.Nh6+– (22.Nh6 Nf5 23.Qf5+– (23.Ngf5?! gh6 24.Qf3 Ng7+/–; 23.ef5?! gh6 24.Qf3 d5+=)) 1–0. Boulier,Rene (2040) – Schone,Claude, Cap d'Agde Cavalier op, 2002. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6)

5.Nc3 Nf6 6.Bc4 0–0 =.

5.Bc4 d6 6.c3 Nf6 7.d3 0–0 8.Be3 Be3 9.fe3 Be6 10.Be6 fe6 11.0–0 Qe7 12.Nbd2 Nd7 13.d4 Rf7 14.Qb3 Nb6 15.Nc4 Nc4 16.Qc4 Raf8 17.Rf2 Qc7 18.Qe6 h6 19.Nh4 Nd8 20.Qb3 Kh7 21.Rf7 Qf7 22.Qf7 Rf7 23.Nf5 Rc7 24.Rc1 ed4 25.ed4 Ne6 26.d5 Nf4 27.Kf1 Nd3 28.Rc2 Nb4 29.Rb2 Nd3 30.Rc2 Nb4 31.Rb2 Na6 32.Rc2 Rd7 33.c4 Nc5 34.Ke2 Ne4 35.Ke3 Nf6 36.Kd4 Kg6 37.Ne3 Re7 38.g4 Re4 39.Kd3 Rf4 40.h4 Ng4 41.c5 Rf3 42.Re2 0–1. loriku1 (1815) – jijiji123456 (1985), kurnik, 2012. (=1.e4 c5 2.b4 e5 3.bc5)

5.Bc4 h6 6.0–0 Nf6 7.Qe2 0–0 8.Nc3 a6 9.a4 Nd4 10.Nd4 Bd4 11.Ba3 Bc3 12.dc3 Re8 13.Rfd1 d5 (13...b6 14.Bd6+=) 14.ed5 e4 (14...Bg4!? 15.f3 Bh5+=) 15.h3+/– e3 16.fe3 Ne4 17.Qf3 Ng5 18.Qg3 Re4 (18...Ne4!? 19.Qe1 Bd7+/–) 19.Bd3 Qd5 20.Be4 Qe4 21.Rd8 Kh7 22.Rad1 (22.Bd6 Qc2 23.Be5 Ne6+–) 22...b5 (22...Qa4 23.Be7 Ne6 24.R8d2+/–) 23.R1d4 Qc2 24.Bf8 Ne6 25.Rg4 (25.Re8!? Qg6 26.Qg6 Kg6 27.Rg4 Ng5 28.h4+–) 25...Qc3+= 26.Rdd4 (better is 26.Re8!?+=) 26...g6–/+ (26...Nd4?? 27.Rg7 Kh8 28.Rg8 Kh7 29.Qg7) 27.Rh4 Nf8 28.Qf4 Kg7?? (28...Qc1 29.Kf2 Qc2 30.Kg1 Kg8 31.Qh6 Qc1 32.Kf2 f5 33.Qh8 Kf7 34.Rh7 Nh7 35.Qh7 Kf6 36.Qh8 Kf7 37.Qh7 Kf6 38.Qh8 Kf7 39.Qh7=) 29.Qh6+– Kf6 30.Qh8 Ke7 31.Rde4 Be6 32.Qc3 Rc8 (32...Rd8+–) 33.Re6! (33.Re6 Ne6 34.Qc8+–) 1–0. Dos Santos,Braulio (2040) – Siqueira,Allan de Sousa, Rio de Janeiro Andrade op, 2008. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6 5.Bc4 h6)

5.Bc4 h6 6.a3 g5 7.c3 Qe7 8.h3 (8.0–0 g4 9.Ne1 Nf6=) 8...Nf6 9.h4?? (better is 9.d3=) 9...g4 (better is 9...Ne4 10.d4 ed4–+) 10.Nh2–/+ Ne4 11.Ng4 d6 (11...d5!? 12.Bd5 Bg4 13.Qg4 Nf2–/+ (worse is 13...Bf2 14.Kd1 Ng3 15.Bc6 bc6 16.Rh3+/–)) 12.Qf3 f5 13.Nh2?? (better is 13.Ne3+=) 13...Bf2–+ 14.Kf1 h5 15.g3?? Bg3 16.Bd3? Bh2 17.Rh2 d5 18.Be4 de4 19.Qe3 Na5 20.d3 f4 21.Qe4 Nb3?? 22.Qg6?? Kd8–+ 23.Raa2 Nc1 24.Rab2 Bg4 25.Rhc2 Ne2! 26.Qe4 Ng3 27.Ke1 Ne4 28.de4 Qh4 29.Kd2 Ke7 30.Rb7–+ Bd7 31.Kc1 Rhb8 32.Rc7 Qe1# 0–1. Eries – xorb, ChessWorld.net, 2013. (=1.e4 c5 2.b4 Nc6 3.bc5 e5 4.Bc4 Bc5 5.Nf3 h6)

5.Be2 Nf6 6.0–0 Ne4 7.d3 Nf6 8.Nbd2 (8.c3 Be7–/+) 8...0–0 9.Bb2 Re8 10.c4 (10.d4 Nd4 11.Nd4 ed4–/+) 10...d5 11.cd5 Qd5 12.a3 Bg4 13.Qc2 Nd4 (13...Rac8 14.Ne4 Be7 15.Rfc1–+) 14.Bd4 (14.Nd4 Bd4 15.Ne4 Rac8 16.Nf6 gf6–/+) 14...Bd4 (better is 14...ed4 15.Rfe1 Rac8–+) 15.Nc4? (better is 15.Nd4 Qd4 16.Bg4 Qg4 17.Ne4–/+) 15...Ba1 16.Ra1 Bf3 (16...Rac8 17.Qb1–+) 17.Bf3 Qd7 (17...Qd4 18.Rc1–+) 18.Ne3 (18.Qb2 e4 19.de4 Ne4–+) 18...Rac8 19.Qb3 b6 20.Nd5 (20.Re1 Qd4–+) 20...Nd5 21.Bd5 (21.Qd5 Qd5 22.Bd5 Rc2–+) 21...Red8 (21...Rc5 22.Be4–+) 22.Be4 Qd4 23.Rf1 g6 24.Bb7 (24.Qb5 Rc5 25.Qb3 Kg7–+) 24...Rc3 25.Qa2 Qd3 26.a4 (26.Qa1 Rc7 27.Bf3 Qc3–+) 26...Ra3 (better is 26...Rc1! 27.h3 Qf1 28.Kh2 h5–+) 27.Qb2 f6 28.Bc6 Rc3 29.Bb5 Rc2 30.Qb1 Qd2 31.Qb3 Kg7 32.h3 Qc3 33.Qe6 Qc7 34.Re1 Rdd2 35.Be8 Rf2 36.Qg4 Qb7 37.Re4 Rg2 (37...Rg2 38.Qg2 Rg2 39.Kg2 Qe4 40.Kf1 a6–+) 0–1. carlopm (1910) – rpatru (2180), net–chess.com, 2010. (=1.b4 c5 2.bc5 e5 3.e4 Bc5 4.Nf3 Nc6)

5.Be2 Nf6 6.d3 Qb6 7.0–0= 0–0 8.Nbd2 d5 9.ed5 Nd5 10.c4 (better is 10.Ne4+=) 10...Bg4?? (better is 10...Nc3 11.Qe1 Nd4–/+ (11...Ne2?! 12.Qe2 Bf5 13.Rb1+=)) 11.cd5+– Nd4 12.Rb1 Ne2 13.Qe2 Bf3 14.Qf3 (14.Rb6 Be2 15.Rb7 Bf1 16.Kf1 Rab8–/+; 14.gf3?! Qg6 15.Kh1 Bd4+–) 14...Qd6 (14...Qa6 15.Re1+–) 15.Ne4 Qd5 (15...Qe7 16.Nc5 Qc5 17.Rb7+–) 16.Qg3 (better is 16.Nf6 gf6 17.Qd5+–) 16...Bb6 (16...Kh8 17.Nc5 Qc5 18.Rb7 Qd5+–) 17.Bh6 g6 18.Nf6 Kh8 19.Nd5 (19.Nd5 f6 20.Nf6+–) 1–0. carlopm (1910) – debutler (2180), net–chess.com, 2010.

5.Be2 Nf6 6.d3 d5 7.Nbd2 +=.

5.Be2 Nf6 6.d3 d6 7.0–0 h6 8.c3 Qb6 9.Nbd2 Ng4 (better is 9...Be6!?=) 10.d4+/– ed4 11.Nc4 Qc7 12.cd4 (12.Nd4?! d5 13.Bg4 dc4 14.Bc8 Rc8=) 12...d5 13.ed5 Nd4 14.d6 Nf3 15.Bf3 Bf2 16.Rf2 Qc4 17.Re2 (17.Rc2 Qe6 18.Rc8 Qc8 19.Qe2 Kf8 20.Qe7 Kg8+–) 17...Kd8 18.Rc2 Qb4 19.Rb1! Qa5?? (19...Qb1 20.Bg5 Double attack) 20.Bg4 (better is 20.d7 Bd7 21.Bg4+–) 20...Bg4= 21.Qd2 (21.Qf1 Rc8 22.Rb5 Qa4 23.Rc8 Bc8+/–) 21...Qd2+= 22.Rd2 b6 23.Ba3 Kd7 24.Re1 Be6 25.Bb2 f6 26.Re3 Rac8 27.a3 Rc6 28.Red3 Rg8 29.Rd4 Re8 30.Kf2 Bf5 31.a4 Re4–+ 32.Re4 Be4 33.Ba3 a5 34.Ke3 Rc3 35.Ke4–/+ Ra3 36.Kd5 Rc3 37.Ke4 Rc5 38.Rd5 Rc6 39.Kf5 Rd6 40.Rd6?? Kd6 41.Kg6 b5! 0–1. Lorenzen,Sven – Mueller,Alfred, Schleswig Holstein–ch cand, 1994. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6)

5.Ne5 Bf2 6.Kf2 Ne5 7.d4 Ng6 8.c4 N8e7 9.Bd3 0–0 10.Rf1 Nc6 11.d5 Qf6 12.Kg1 Qa1 13.Nd2 Qd4 14.Kh1 White resigned 0–1. nickbarletta – Danno12, ChessWorld.net, 2005. (=1.e4 c5 2.b4 e5 3.bc5)

5.Bc4 Nf6

6.0–0 0–0 7.c3 d5 8.ed5 Nd5 9.Ba3 (9.d4 ed4 10.cd4 Bb6+=) 9...Ba3+= 10.Na3 Bg4 11.Nc2 (11.h3 Bh5 12.Re1 Nf4–/+) 11...Nf4–/+ 12.Re1 Ng6 (12...Bf3!? 13.Qf3 Qd2+=) 13.Be2= Nf4 14.Ne3 (14.Bc4!?=) 14...Ne2 15.Kf1?? (better is 15.Qe2 Bf3 16.Qf3 Qd2 17.Nc4+=) 15...Bf3–+ 16.gf3 Nf4 17.Nf5 (17.Rb1 Qh4 18.Kg1 Nh3 19.Kg2 Rfd8–+) 17...Qg5 (better is 17...Qd3 18.Kg1 Qf5 19.Kh1–+) 18.Ng3 (18.Ne3 Rfd8 19.Ng4 Rd6–+) 18...Qh6 19.Re4 Qh3 20.Ke1 Qh2 21.Nf1 Qg2 22.Rf4 ef4 23.d4 Rfe8 24.Kd2 Qf2 (24...Qf2 25.Kc1 Nd4–+) 0–1. workchess (2190) – rpatru (2180), net–chess.com, 2010.

6.0–0 0–0 7.c3 Ne4 8.Bd5 Nf6 9.Bc6 dc6 10.Ne5 +=.

6.0–0 Ne4–/+ 7.d3 Nf2 8.Rf2 Qb6?? (8...d5!? 9.Bb3 Bf2 10.Kf2 0–0–/+) 9.Qe2?? (better is 9.d4 ed4 10.Ba3 Ba3 11.Na3+/–) 9...0–0 10.c3 Bf2 11.Qf2 Qc7 12.Ba3 d6 13.Nbd2 Be6 14.Ng5 Qe7 (14...Na5!?=) 15.Nge4+= Rad8 16.Nd6 Rd6 17.Ne4 Rfd8 18.Nd6 Rd6 19.Bd6 Qd6 20.Be6 Qe6 21.Rf1 f6 22.Qf5 Qe8 23.d4 ed4 24.cd4 Qe3 25.Qf2 (25.Qf2 Qd3 26.Qf4+=) 1–0. wizofoz (2600) – hockhin (2505), net–chess.com, 2013. (=1.e4 c5 2.b4 Nc6 3.bc5 e5 4.Bc4 Bc5 5.Nf3 Nf6)

6.c3 0–0 7.0–0 d6 8.d4= ed4 9.cd4 Bb6 10.d5 Ne7 (10...Na5 11.Qc2 Nc4 12.Qc4 Ne4 13.Qe4 Qf6+=) 11.Bg5 (11.Nbd2 Ng6+=) 11...Bg4?? (better is 11...Ne4 12.Bh4 Bg4–/+) 12.Bf6+/– gf6 13.h3 Bh5 14.g4 Bg6 15.Re1 Rc8 16.Nbd2 Qd7 17.Rb1 Bc5 (17...Rc5 18.Qb3+=) 18.Qb3+/– b6 19.Qb2 Kg7 20.Bb5 Qc7 21.Nc4 (21.g5 Ng8+/–) 21...Rfd8 (21...Qb7 22.g5 Kg8 23.Qf6+/–) 22.Ba6 Rb8 23.a4 Bf2?? (better is 23...h6+/–) 24.Qf2+– (24.Kf2?! b5 25.Bb5 a6+–) 1–0. pvaras (2410) – workchess (2190), net–chess.com, 2010.

6.c3? 0–0 7.d3=+ d5 8.ed5 Nd5 9.0–0 Bg4 10.h3 Bh5 11.g4 (11.Qe2 Nb6 12.Bb3 Re8=+) 11...Bg6–/+ 12.Qe2 (12.Re1 Qd6–/+) 12...Re8 13.Re1 e4 14.Bd2 (14.d4 ef3 15.Qe8 Qe8 16.Re8 Re8 17.dc5 Re1 18.Kh2 Rc1 19.Bd5 h6–+) 14...ef3 (14...e3 15.Be3 Ne3 16.fe3 Re3 17.Qe3 Be3 18.Kg2–+) 15.Qe8 Qe8 16.Re8 Re8 17.Bd5 Bd3 18.Bf3 Na5 19.Be3 Be3 (19...b6 20.Bg2–+) 20.fe3–/+ Nc4 21.Kf2 Re6 22.Nd2=+ Nd2 23.Rd1= Nf3 24.Rd3 Kf8 25.Kf3 Ke7 26.c4 Rh6 27.Ra3 a6 28.Rb3 b6 29.h4 Rf6 30.Kg3 Rc6 31.Ra3 a5 32.Rb3 Ke6 33.Rb5 Kd7 34.Rd5 Ke6 35.Rb5 ½–½. Tjoernsted – Armstrong,Alan, corr 3GMM–06, 1996.

6.c3? Ne4!? 7.d4 d5 8.Ne5 Ne5 9.Bb5 Bd7 10.Bd7 Qd7–/+ (10...Kd7?! 11.dc5 Kc8 12.Be3=+).

6.Nc3 0–0 7.0–0 d6 8.a4 Bg4 9.h3 Bh5 10.g4 Ng4 11.hg4 Bg4 12.Be2 f5 13.Nh2 (13.Rb1!?=) 13...Bh3=+ 14.d3? (better 14.Bc4 Kh8 15.Qh5 Bf1 16.Bf1–/+) 14...Qh4–+ 15.Bf3 Bf1 16.Qf1 Nd4 17.Qg2 (17.Be3 Rac8 18.ef5 Nf5 19.Bc5 Rc5 20.Nd5 Rc2 21.Rb1–+) 17...f4?? (better 17...Nc2 18.Ra2 Ne1–+) 18.Nd5–/+ Rae8 19.Bb2? (better 19.Rb1!? Nc2 20.Rb7–/+) 19...Re6–+ 20.Bd4 Bd4 21.Rb1? (better 21.c3 Bb6 22.a5–+) 21...Rg6 22.Bg4 (22.Ng4 h5 23.c3–+) 22...f3! 23.Qf1 (23.Bf3 Bf2 Double attack (23...Rg2 Pinning; 23...Rg2 Deflection); 23.Nf3 Qg4 Double attack (23...Rg4 Deflection; 23...Qg4 Decoy)) 23...Rg4 (23...Rh6 24.Bh3 Qg3 25.Kh1 Bf2 26.Ne7 Kh8 27.Ng6 hg6 28.Qf2 Qf2 29.Rf1 Qc2 30.Kg1 Rh3 31.Rf2 Rg3 32.Kh1 Qf2 33.Nf3 Qg2) 24.Ng4 Qg4 25.Kh2 Qh4 26.Qh3 Qf2 27.Kh1 g6 (better 27...Qc2 28.Ne7 Kf7 29.Qf1 Qg2 30.Qg2 fg2 31.Kg2 Ke7 32.Rb7 Kf6 33.a5–+) 28.Rb7 (28.c3 Bc5 29.Ne7 Kg7 30.Nf5 Kh8 31.Ne7–+) 28…Qg1 0–1. Riha,Vojtech (2135) – Havlik,Ja1 (2390), ch–CZE Blitz (13), 2018. (=1.e4 c5 2.b4 e5 3.Nf3 Nc6 4.bc5 Bc5 5.Bc4 Nf6)

6.Nc3 d6 7.h3 0–0 8.0–0 Bd4 9.Qe2 (9.Nd4 Nd4 (9...ed4 10.Nd5 Ne4 11.Re1 Nc5 12.a3 d3 13.cd3 Be6) 10.Rb1 Qc7 (10...Qa5 11.Re1 Qc7 12.d3 Be6 13.Bg5 Bc4) 11.d3 Be6 12.Bg5 Bc4 13.dc4 Qc4) 9...Nh5 (9...Bc3 10.dc3 Be6 11.Rd1 Bc4 12.Qc4 Rc8 13.Qe2 Qc7; 9...Be6 A) 10.Bb3 Bc3 (10...Re8 11.Bb2 d5 12.ed5 Nd5 13.Nd4 Nf4) 11.dc3 Qa5 12.Bg5 Qc3 13.Rab1 Rab8; B) 10.Rb1 Bc3 11.dc3 Bc4 12.Qc4 Rc8 13.Re1 h6; C) 10.Be6 fe6 11.Bb2 Rc8 12.Rab1 Nh5 13.Qd1 Nf4) 10.Nd4 (10.Qd1 Bc3 11.dc3 Qe7= 12.Bd5 Nf6 13.Bg5 h6) 10...Nf4–/+ 11.Qe3 Nd4 12.Bd3 (12.Rb1 Nc2 (12...Be6 13.Be6 fe6) 13.Qg3 Qc7–/+) 12...f5 (12...Qg5 13.Qg3 Qg3 14.fg3 Nd3 15.cd3 Be6–/+) 13.ef5 (better is 13.Rb1!?–/+ fe4) 13...Nd3–+ (13...Nf5?! 14.Qe4–/+) 14.cd3? (better is 14.Qd3 Bf5 15.Qc4 Rf7 16.Qd5–+) 14...Nc2 (14...Bf5?! 15.Rb1–/+; 14...Rf5?! 15.Rb1–/+; 14...Nf5?! 15.Qe4–/+) 15.Qe4 Na1 16.g4 (16.Qd5 Kh8 17.Ne4 Nc2 (17...Rf5?! 18.Nd6 Qd7 19.Bb2–+) 18.Nd6 Bf5–+) 16...Nc2 17.f4 (17.Qd5 Rf7 18.Ne4 Nb4–+) 17...Qb6 (17...Qh4 18.Kh2 ef4 19.Qf4–+) 18.Rf2 (18.Kh2 Qa5–+) 18...Qd4 (better is 18...ef4 19.Qa4 Nd4 20.Qc4 Kh8 21.Nd5–+) 19.fe5 (19.Nb5 Qe4 20.de4 Rd8–+) 19…de5 0–1. Kovacs,Lajos D (2220) – Kadar,Gabor (2295), HUN–chT, 1992. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6 5.Bc4 Nf6)

6.d3 0–0 7.0–0= a6 8.Bb2 (8.Nc3 d6=) 8...d6 9.Nbd2 Bg4 (9...b5 10.Bb3=) 10.h3= Bh5 11.a3 (11.a4 h6=) 11...Qd7 (11...b5 12.Bb3+=) 12.Nb3 (12.a4=) 12...Nd4 (12...Rfe8 13.Nc5 dc5 14.a4=) 13.Bd4 (13.Nc5 dc5 14.Ne5 Qd6+=) 13...ed4 (13...Bd4 14.Nbd4 ed4 15.a4+=) 14.Kh2 (better is 14.e5 de5 15.Nc5+/–) 14...b5 15.e5? (better is 15.Nc5 dc5 16.Ba2+=) 15...de5–+ 16.Nc5 Qc7 17.Bf7? (better is 17.Ne6 fe6 18.Be6 Kh8 19.Kh1–+) 17...Rf7–+ (17...Kf7?! 18.Ng5 Kg8 19.Nce6=; 17...Bf7?! 18.Ne4–/+; 17...Qf7?! A) 18.Ne5?? Qd5 (18...Bd1?! 19.Nf7 Rfc8 20.Rad1 Rc5 21.Nd6+=) 19.Qe1 Qc5–+; B) 18.Qe2–/+) 18.Ne6 Qd6 19.Neg5 Re7 (better is 19...e4 20.Kh1 ef3 21.Nf7 fg2 (worse is 21...Kf7 22.g3–+; 21...Bf7?! 22.Qf3 Rc8 23.Rfc1–+) 22.Kg2 Bf7–+) 20.Ne4 (20.Kg1 h6 21.g4 Bg6–/+) 20...Qc7 (20...Ne4 21.de4 Rc8 22.a4–+) 21.Kg1 (21.Nf6 gf6 22.g4 Bg6–/+) 21...Rf8 (better is 21...Ne4 22.de4 Rc8–+) 22.c3?? (better is 22.Ng3+=) 22...Ne4–+ 23.de4 Qc3 24.Qd2 (24.Qb1 Bf3 25.Rc1–+) 24...Qc8 (better is 24...Bf3 25.Qc3 dc3 26.gf3 Rd7–+) 25.Rac1 Qb7 26.Ng5? h6–+ 27.Qa2 Kh8 28.Nf3 Qe4 29.Rfe1 Qf5 30.Nd4–/+ Qf6 31.Nc6 Re6 32.Nb4 Bf7 33.Qb2 Rd6 34.Rc7?? Re6?? 35.Nd5 Qd8 36.Rc5 Qd6 37.Qb4 Rg6 38.Ne3 Rg8 39.Nf5 Qd3? 40.Rce5?? Qh3+= 41.Ng3 Qc8 42.Re7 Bc4 43.Qb1 Qg4 44.R1e4+= Qc8?? 45.Rc4!+– Qc4 46.Qg6 Qc1 47.Kh2 Qa3 48.Nf5 Qa1 49.Nh6! Rf8 50.Ng4 Qd4 51.Qh5 Kg8 52.Re8 Qd6 53.g3 b4 54.Rf8 Qf8 55.Qd5 Kh8 56.f4 Qe8 57.Ne5 Qh5 58.Kg1 Qe8? 59.Nf7 Kh7 60.Qh5 Kg8 61.Nh6! Kf8 62.Qf5 Ke7 63.Qc5 Kd8 64.Nf5 Qe1= 65.Kg2 Qe2 66.Kh3 Qh5 67.Kg2 ½–½. kc (2260) – pallen (2220), net–chess.com, 2007. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6 5.Bc4= Nf6)

6.d3 0–0 7.0–0= d6 8.Nc3 =.

6.d3 0–0 7.0–0 d6 8.h3 h6 9.Nc3 a6 10.a4 Be6 11.Nd5 Ne7?? (better is 11...Bd5 12.Bd5 Nd5 13.ed5 Nb4=) 12.Nf6+– gf6 13.Bh6 Re8 14.Be6 fe6 15.Nh4 (15.Nh4 Kh7 16.Be3+–) 1–0. Drewitz,Friedel (1795) – Kraemer,Marianne, Bad Woerishofen Seniors op, 1996. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6 5.Bc4 Nf6)

6.d3 a6 7.0–0 0–0 8.Bg5 b5 9.Bb3 h6 10.Be3 Qb6 11.Bc5 Qc5 12.Nbd2 Bb7 13.a4 Rad8 14.Re1 Rfe8 15.Qc1 Ng4 16.Re2 Rc8 17.h3 Nf6 18.Re1 (18.ab5 ab5 (worse 18...Qb5 19.Qa3+–) 19.Qb2 Nh5=) 18...Nh5 (18...b4 19.Qb2=+) 19.Nf1 (19.ab5 ab5 (worse 19...Qb5 20.Rb1 Qc5 21.Bf7 Kf7 22.Rb7+–) 20.Nf1 b4=) 19...Nf4 (19...b4 20.Ne3=+) 20.Ne3 (20.ab5 ab5 (20...Qb5 21.Rb1 Nb4 22.Qd2+–) 21.Qe3 d6=) 20...Ne6 (20...Na5 21.Qd2 Nb3 22.cb3=+) 21.Qd2 (21.ab5 ab5 (21...Qb5? 22.Rb1 Nb4 23.Qa3+–) 22.Bd5 Nf4=) 21...Ned4 22.ab5 (better 22.Nd4!? Nd4 23.ab5 ab5 24.Ra2=) 22...Nf3–/+ 23.gf3 ab5 (23...Nd4 24.Kg2 ab5 25.Reb1–/+) 24.Kh2 (24.Nf5!?=+) 24...Nd4–/+ 25.Qd1 Kh7 26.Rg1 Qe7 (26...Rf8 27.Kg2–/+) 27.c4 (27.Bd5 d6 28.Ra7+=) 27...bc4 28.Bc4 Qf6 29.Rg3 h5 (29...Rc7 30.Bd5–/+) 30.Kg2 Bc6 31.Ra6 d6 32.Ra7 Re7 (32...Rf8 33.Nd5 Bd5 34.Bd5–/+) 33.Ra6 (better 33.Re7!? Qe7 34.f4=) 33...Qh6 34.Nc2 (34.Kg1!?–/+) 34...Nc2–+ 35.Qc2 h4 36.Rg4 Bd7 37.Qa2 Bg4 38.fg4 Qf6 39.Qa3 Rd8 40.Qa5 (40.Qb4 Red7–/+) 40...Rb7 41.Ra7 Rdb8 42.Rb7 Rb7 43.Qc3 Qe7 44.Qd2 f6 45.Qe2 Qc7 (better 45...Rb1!?–+) 46.g5 g6 47.gf6 Rb8?? (better 47...Qd8 48.Qf3 Rb4=+) 48.Qg4+– Kh8 49.Qg6 (49.Qh4?! Qh7 50.Qg5 Qh5 51.Qh5 gh5+=) 49...Qh7 50.Qh7 (better 50.Qg5!?+–) 50...Kh7+– 51.f7 Kg6 52.Kf3 Kg5 53.Bd5 Rd8 54.Ke3 Rc8 55.Kf3 ½–½. Grall,Alba – Francois,Gwladys, ChampionshipFrance Jeunes, 2016. (=1.e4 c5 2.Nf3 Nc6 3.b4 e5 4.bc5 Bc5 5.Bc4 Nf6)

6.d3 b5!? 7.Bb3 a5 +=.

6.d3 d5 7.ed5 Nd5 8.0–0 0–0 9.Bg5 Qd6 10.Nbd2 Nc3 11.Qe1 Nd4 12.Nd4 Bd4 (12...Qd4?? 13.Nf3 Qg4 14.Qc3+–) 13.Nf3 b5 14.Bb3 Bb7 15.Nd4 ed4 (15...Qd4?! 16.Be3 Qg4 17.f3=) 16.Be7 Qg6 17.f3 Rfe8 18.Qh4 a5 19.a3? (better is 19.a4 Bd5 20.Bd5 Nd5 21.Bc5–/+) 19...a4–+ 20.Ba2 Na2 21.Ra2 Qe6 22.Rb2 Qe3 23.Kh1 Re7 24.Rb5 Rae8 25.h3 Bc6 26.Rbb1 Qe5 27.f4 (27.Rb4–+) 27...Qc5 28.f5 (28.Rf2 Qa3 29.f5 Re1 30.Rf1 R1e2–+) 28...Qc2 29.Qg4 (29.Qg3 Re3 30.Rbc1 Qc1 31.Rc1 Rg3 32.Rc6 Rd3–+) 29...Re2 (29...Qd3?! 30.f6 g6 31.fe7–/+) 30.Rg1 (30.Rbc1 Bg2 31.Qg2 Rg2 32.Rc2 Rc2 33.Ra1–+) 30...Rg2! 31.Rg2 (31.Qg2 Bg2) 31...Bg2 (32.Qg2 Qb1 33.Kh2 Qd3–+; 31...Qg2?! 32.Qg2 Bg2 33.Kg2=+) 0–1. ricar67 – marekt, ChessWorld.net, 2003.

6.d3 d5 7.ed5 Nd5 8.0–0 0–0 9.h3 Re8 (9...Bf5 10.Re1+=) 10.Bd5 Qd5 11.Nc3 Qd8 12.Bb2 Bd6 13.Re1 Bf5 14.Ne4 Bc7 15.Rb1 Qc8 16.Ng3 Be6 17.Ne5 Ba2 18.Nc6 bc6 19.Ra1 Be6 (better is 19...Re1!? 20.Qe1 Be6+=) 20.Nh5+/– Bh3? (better is 20...f6!? 21.Bf6 Bh3+/–) 21.Re8+– (21.gh3?! Qh3 22.Ng3 Bg3 23.fg3 Qg3 24.Kf1 Re1 25.Qe1 Qe1 26.Ke1 a6=) 21...Qe8 22.gh3 Qd7? (22...f6 23.Qf3 Qf7 24.Qc6+–) 23.Qg4 (better is 23.Qf3 Qd6 24.Bg7 Qg6 25.Kf1 Bd8+–) 23...Qg4 24.hg4 f6 25.Kg2 Rb8?? (25...a5+–) 26.Ra7 Rb2 27.Rc7 1–0. RedRaven – Buddy Revell, ChessWorld.net, 2004. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6 5.Bc4 Nf6)

6.d3 d5 7.ed5 Nd5 8.0–0 Bg4 9.h3 Bh5 10.Bd5 Qd5 11.Nc3 Bf3 12.gf3 Qe6 13.Nb5 Qh3 14.Nc7? (14.Be3 Nd4 15.Bd4 Bd4 16.Nd4 ed4 17.Qe2 Qe6 18.Rfe1–/+) 14...Kd7 15.Na8 Nd4 (15...Ra8?! 16.Be3 Re8 17.d4 ed4 18.Bf4–+) 16.Re1 (16.Be3 Nf3 17.Qf3 Qf3 18.Bc5 Ra8 19.Rfd1–+) 16...Nf3 (16...Ra8?! 17.Re3 Nf5 18.Qf1 Qf1 19.Kf1 Ne3 20.fe3–+) 17.Qf3 Qf3 18.Rf1 (18.Be3 Bb4 19.Nb6 ab6 20.Rec1–+) 18...Qg3 19.Kh1 Qh3 (better is 19...Bf2 20.Rf2 Qf2 21.Rb1 Ra8 22.Ba3 Qc2 23.Rb7 Ke6 24.Kg1–+) 20.Kg1 Re8 21.Be3 (21.Nb6 ab6 22.Bd2 Re6 23.Bg5 Rg6 24.Rfb1 Rg5) 21...Re6 22.Bc5 (22.Bg5 Rg6 23.Nb6 Bb6 24.Rfe1 Rg5) 22...Rg6 0–1. BLACKBEARD (2315) – freddy007 (2115), ChessWorld.net, 2003.

6.d3 d6 7.0–0 Bg4 8.c3 0–0 9.Nbd2 a6 10.a4 Na5 11.Ba2 Qd7 12.Nb3 Nb3 (12...Qa4? 13.Na5 Qd1 14.Rd1+–) 13.Bb3 d5 (better 13...Qd8=) 14.Ne5+– Bd1 15.Nd7 Bb3 16.Nc5 Bc2 17.Ra2 b6 18.Rc2 bc5 19.f3 c4 20.e5 cd3 21.Rd2 Nd7 22.Rd3 Ne5 23.Rd5 Nc4 24.Rc5 (24.Rfd1 Rfe8+–) 24...Rac8 25.Rc8 Rc8 26.Rd1 h6 27.Rd4 Rc5 28.Kf2 Nb6 (28...Kh7 29.Rh4+–) 29.Be3 Nd5 30.c4 (30.Bd2 Nc3 31.Bc3 Rc3+–) 30...Ne3+= 31.Ke3 Kf8 32.Kd3 Ra5 33.Rd5 (33.Rd7 Ra4 34.c5 Ra3 35.Kc4 Ra2+–) 33...Ra4+= 34.Kd4 (34.c5 Ra3 35.Kd4 Ra4 36.Ke5 Ke7+–) 34...Ke7 (34...Ra2 35.g4=) 35.Kc5 Ra5 36.Kc6 Rd5 (36...Ra2 37.g4=) 37.cd5+= Kd8 38.d6 (38.Kc5 Kc7=) 38...a5 (38...g5 39.Kb6=+) 39.Kb5 Kd7 40.Ka5 Kd6 41.Kb4 Ke5 42.Kc3 g5 (42...f5 43.g3=+) 43.Kd3 f5 44.g3 h5 45.h3 ½–½. Huchon,Jean – Warlet,Jean Philippe, Belgian championship, Open, 1992. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6 5.Bc4 Nf6)

6.d3 h6 7.0–0= 0–0 8.Bb2 (8.Nc3 a6=) 8...d5 9.ed5 Na5 (better is 9...Nd5!? 10.Nc3 Nf4=) 10.Ne5 (10.Be5 Re8 11.Bf6 Qf6+/–) 10...Nd5 11.Bd5 (11.Bd5 Qd5 12.Nd2+/–) 1–0. kc (2260) – attasantotjia (2295), net–chess.com, 2007. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 Nc6 5.Bc4 Nf6)

6.d3 h6 7.0–0= a6 8.Nc3 =.

6.d3 h6 7.0–0 d6 8.c3 0–0 9.h3 Qe7 10.Qe2 Be6 11.Be6 Qe6 12.Nbd2 d5 13.Nh4 Ne7 14.Nb3 Bb6 15.Ba3 de4 16.de4 Rfd8 17.Rfd1 Rac8 18.Rd8 Rd8 19.c4 Nc6 20.c5 Bc7 21.Qb5 Ne4 22.Qb7 Qf6 (22...Qd7 23.Bb2+=) 23.Nf3 Bb8 24.Bb2 Ng5 25.Nfd2 (25.Ng5 hg5 26.Bc3 Nd4+=) 25...Nd4 26.Re1 Qf4 27.c6 Ndf3?? (27...Nb3 28.Nb3 e4–+) 28.Nf3+– (28.gf3?! Nh3 29.Kf1 Qh4+=) 28...Nf3 29.gf3 e4 30.c7 (30.fe4 Qh2 31.Kf1 Qh3 32.Kg1 Bh2 33.Kh1 Bg3 34.Kg1 Qh2 35.Kf1 Qf2) 30...Bc7 31.Qe4 (worse is 31.fe4 Qh2 32.Kf1 Qh3 33.Kg1 Bh2 34.Kh1 Bg3 35.Kg1 Qh2 36.Kf1 Qf2) 31...Qh2 32.Kf1 Qh3 33.Ke2 Qd7 34.Kf1 Qh3 ½–½. Perez,Ricardo B (2080) – Lorenzo,Antonio (1805), Queens–ch Jamaica, 2006. (=1.e4 c5 2.b4 e5 3.bc5 Nc6 4.Nf3 Bc5 5.Bc4 Nf6)

4.Nf3 d6

5.Ba3 Nd7 =.

5.Bb5 Bd7 6.Bd7 Nd7 (worse is 6...Kd7 7.c3+/–) 7.0–0 (7.c3 d5 8.ed5 e4=) 7...Qb6 (7...Ngf6 8.d3=) 8.Nc3 (8.c3 Qc7=) 8...Ngf6 9.Qe2 (9.Rb1 Qc6=) 9...0–0 10.Na4 Qc6 11.Nc5 Nc5 12.d3 Rad8 (12...Ne6 13.c4=) 13.Bg5+= Ncd7 14.Rab1 Rc8 (14...h6 15.Bf6 Nf6 16.c4+=) 15.Rfc1 (15.c4 b6+=) 15...Rfe8 16.Rb4 (16.c4 Re6=) 16...b5 (16...d5 17.ed5 Nd5 18.Rc4=) 17.h3 (17.c4 bc4 18.Rcc4 Qa8=) 17...a5= 18.Rb2 (18.Rb3 d5 19.ed5 Nd5=) 18...d5 (18...b4 19.a3 ba3 20.Ra2=) 19.Bf6 (19.ed5!? Qd5 20.c4 bc4 21.dc4=) 19...Nf6+= (worse is 19...gf6 20.ed5 Qd5 21.c4 bc4 22.dc4+=) 20.ed5 Qd5 (better is 20...Nd5 21.Qe4 b4–/+) 21.d4 (21.c4 bc4 22.dc4 Qc5=) 21...b4 (better is 21...e4 22.Ne1 b4–+) 22.de5+= Nh5 (22...Ne4 23.Re1 Nc3 24.Qd3=) 23.g3 (23.Rd1!? Qc5 24.Qd2+=) 23...Qe6 (23...f6 24.c4 bc3 25.Rb3+=) 24.Kg2 Qg6 25.Qe3 (better is 25.Qd2!?=) 25...Rc3+= 26.Qd2? (better is 26.Qg5 Qg5 27.Ng5 Re5 28.Nf3+=) 26...Rc4?? (better is 26...Rf3 27.a3 Nf4 28.Kf3 Qc6 29.Kf4 Qh6 30.Kf3 Qd2–+) 27.Kh2 Rc3 28.Rb3+/– Qc6 29.Rc3 bc3 30.Qe3 a4 31.g4 Nf6+= 32.Rd1 Nd5 33.Qd4 Ne7 34.Qd7 Qa8 35.Rd3+– Qc6? 36.Qc6 Nc6 37.Rc3 Nb4 38.a3 Nd5 39.Rc4 f6 40.Ra4 fe5 41.Ra5 e4 42.Rd5 ef3 43.Kg3 Re2 44.Rc5 h6 45.Kf3 Re6 46.h4 g6 47.a4 Rf6 48.Kg3 1–0. rthurc (2250) – tundeski (2550), net–chess.com, 2009. (=1.e4 c5 2.b4 e5 3.bc5 Bc5 4.Nf3 d6)

5.c3= Qb6 6.d4+= ed4 7.cd4 Bb4 8.Nbd2 (8.Bd2 Nc6 9.d5 Nd4+=) 8...Ne7 (8...Nc6 9.Rb1 Nd4 10.Nd4 Bd2 11.Bd2 Qd4 12.Bb5 Kf8 13.Rb4+=) 9.Rb1+/– Bd2 (9...d5 10.Ba3 a5 11.Bb4 ab4 12.Qb3+=) 10.Bd2 Qd8 11.Qa4 Bd7 12.Qa3 b6 (12...d5!? 13.Rb7 Qc8 14.Ra7 Ra7 15.Qa7 Nbc6+/–) 13.Qd6+– 0–0 (13...f5 14.Qe5 Rg8 15.Bc4+–) 14.d5 (14.Ne5 Nec6 15.Qd5 Ne5 16.Qa8 Bc6 17.Qa7 Be4+–) 14...Ng6 (14...Re8 15.Bd3+–) 15.h4 (15.Bd3 Nh4+–) 15...Bg4 (15...Qe8 16.e5 Bf5 17.Bb5+/–) 16.Qd8 Rd8 17.Nd4 Nd7 18.f3 Bf3 (18...Nf6+–) 19.gf3 (worse is 19.Nf3 Re8+–) 19...Nc5 20.Nc6 Re8 21.Kf2 Ne5 22.Ne5 Re5 23.Bf4 Ree8 (23...Rh5 24.Kg3+–) 24.Bb5 Red8 25.Bc7 Rdc8 26.Bc6 Rc7 27.Ba8 1–0. marre – oppo, internet, 2010. (=1.e4 c5 2.b4 e5 3.bc5)

5.c3= Qe7 6.Bb5 Nc6 7.0–0 =.

5.c3 Nf6 6.d4 ed4 7.cd4 Bb4 (7...Bb6 8.Bb5 Bd7 9.Qd3 Bb5 10.Qb5 Qd7 11.Qd3=) 8.Bd2 Bd2 (8...Qa5 9.Qb3 Bd2 10.Nbd2+=) 9.Nbd2+= (worse is 9.Nfd2 0–0+=) 9...Bg4 (9...0–0 10.Bd3+=) 10.Bd3 (10.Bb5 Bd7 11.Rb1 0–0+/–) 10...0–0+= 11.0–0 Nbd7 (11...Nc6 12.h3 Bf3 13.Nf3+=) 12.h3+/– Bf3 13.Qf3 (13.gf3? Nh5 14.Re1 Re8–+) 13...a6 (13...Rc8 14.Rac1+/–) 14.Qg3 (14.Nc4 Qe7+/–) 14...b5 (14...Rc8!?+/–) 15.Qd6+– Re8 (15...Qb6 16.Qb4+–) 16.Rac1 (16.e5 Nf8 17.Qa3 Nh5+–) 16...Re6? (better is 16...Nf8!? 17.Qa3 Qd4+/–) 17.Qc7 (17.Qg3 Rc8+–) 17...g6 (17...Nb6 18.d5 Rd6 19.Nb3+–) 18.f4 (18.Qc3 Re8+–) 18...Qc7 (18...Nb6 19.d5 Rd6 20.Nb3+–) 19.Rc7 Rd8 20.d5 Rb6 (20...Rd6 21.Rc2+–) 21.Rfc1 (21.g4 Rd6 22.Nf3 Ne8+–) 21...Kg7? (21...Nh5 22.g3! Ng3 23.Rc8 Rc8 24.Rc8 Kg7 25.Rc7+/–) 22.R1c6 (better is 22.Kf2!?+–) 22...Rc6 23.Rc6 (23.dc6?! Nc5 24.Ra7 Nd3= (24...Rd3?? 25.c7 Rd2 26.c8Q Nce4 27.Ra8+–)) 23...Nb8 24.Rc2 h6? 25.Kf2+– Nbd7 26.Nb3 g5 27.Nd4 gf4 28.Nc6 Rc8? 29.Kf3+– Rc7 30.Kf4 h5 31.Ne7 Rc2 32.Bc2 Kf8 33.Nf5 a5 34.Bd3 b4 35.Bb5 Ke8?? 36.Ne3 Ke7 37.e5 Ng8 38.Nc4 f6 39.e6 Nc5 40.Na5 Kd6 41.Nc4 Ke7 42.Ne3 b3 43.Nf5 Kd8 44.ab3 Nb3 45.d6 Nc5 (45...Nc5 46.e7 Ne7 47.de7 Kc7 48.e8Q Nb7 49.Qc6 Kb8 50.Ba6 Nd8 51.Qb6 Ka8 52.Qd8 Ka7 53.Qf6 Kb8 54.Qe7 h4 55.Qb7) 0–1. desertsnake (2090) – manson (1990), net–chess.com, 2008. (=1.e4 c5 2.b4 e5 3.bc5 Bc5)

5.Nc3 Qf6 6.Nd5+/– Qd8 7.d3 (7.d4 ed4 8.Nd4 Ne7+=) 7...Be6 (7...Ne7 8.Ne7 Qe7 9.Be2=) 8.d4 ed4 9.a4 (9.Nd4!? Bd5 10.ed5=) 9...Nf6 10.Bc4 (10.Bb5!? Kf8 11.Nf6 Qf6 12.Rb1+=) 10...Ne4–/+ 11.Nd4? (better is 11.0–0!? Nc3 12.Nc3 dc3 13.Re1–/+) 11...0–0 (11...Nc6 12.Nb5 Qh4 13.Qe2 Bf2 14.Kf1–+) 12.Ne6 (better is 12.Be3 Qa5 13.Kf1–+) 12...Bf2 (worse is 12...fe6 13.Qg4 Qa5 14.Ke2 Rf2 15.Kd3–+) 13.Kf1 fe6 14.Nf4 Kh8 (better is 14...d5 15.Ne6 Bc5 16.Nf8 Qf8 17.Qf3 dc4 18.Qf8 Kf8–+) 15.Ne6–/+ Bc5 (better is 15...Qf6 16.Nf8 Qa1 (16...Qf8?! 17.Qf3 Nc6 18.Bf4=) 17.Nh7 Be3–/+ (17...Qa4 18.Bd3 Na6 19.Ng5 Ng5 20.Bg5+–)) 16.Ke1?? (16.Nf8 Qf8 17.Qf3 Nc6–/+) 16...Bf2 (better is 16...Qh4 17.Ke2 Qg4 18.Kd3 Nf2 19.Kc3 Nd1 20.Rd1 Qd1–+) 17.Kf1–/+ Qb6?? 18.Nf8+– Bh4 19.Qf3 Na6 20.Be3 Qb2 21.Rd1 Qc2 22.Bd3 Qa4 23.Be4 Bf6 24.Ng6! hg6 25.Qh3 Kg8 26.Bd5 Kf8 27.Re1 Rd8?? 28.Qh8 Ke7 29.Bb6 Be5 30.Qd8 1–0. burrango (1970) – tundeski (2550), net–chess.com, 2009.

5.Nc3 Nf6!? =.

4.Nf3 Nf6=+

5.Nc3 0–0 =.

5.Nc3 Ng4 6.d4 ed4 7.Nd4 Qf6 8.Qg4 Bd4 (9.Nd5 Bf2 10.Kd2 Qa1 11.Nc7 Kd8 12.Na8 Be3 13.Ke3 Qc1 14.Kf3 d5 15.Qg7 de4 16.Kf2 Qf4 (16...Qc2 17.Kg3 Re8 18.Qf6 Re7 19.Qh8 Kd7 20.Bb5 Ke6 21.Qd4+=) 17.Ke1 Re8–+; 8...Qd4?! 9.Qg3=) 0–1. BLACKBEARD – Darlanio, ChessWorld.net, 2004.

5.Bc4? Ne4–/+ 6.0–0 d5 7.Bb5 Kf8 8.Ne5? (Better is 8.d4 ed4 9.Nd4=+) 8...Bd4–+ 9.d3? (Better is 9.Ba3 Kg8 10.Nf7 Kf7 11.c3–+) 9...Ba1 (9...Be5?! 10.d4 Bf6 11.c3–+) 10.de4 Be5 11.Ba3 Kg8 12.Qf3 (12.Qd5 Qf6 13.Rd1–+) 12...Qh4 13.h3 de4 14.Qf7 (14.Qe3 Qf4 15.Qf4 Bf4 16.Re1–+) 14...Kf7 15.Bc4 Kg6 (16.Bd5 Bh3–+) 0–1. BLACKBEARD – Frank Bendig, ChessWorld.net, 2003.

5.Bc4? Ne4–/+ 6.0–0 Bf2 7.Rf2 Nf2 8.Kf2 e4 9.Ne1?? (9.Nd4 Qf6 10.Ke3–+) 9...Qf6–+ 10.Kg1 Qa1 11.Nc3 0–0 12.Qe2 (12.Bd5–+) 12...Qc1 13.Ne4 Nc6 14.Nd6 Nd4 15.Qf2 Nc2 16.Nf7 Qe1 17.Qe1 Ne1 18.Nh6 Kh8 19.Nf7 Rf7 (20.Bf7 d6–+) 0–1. BLACKBEARD – Tihomir Glowatzky, ChessWorld.net, 2003.

5.d3 Qb6 6.d4 (worse is 6.Ne5 Bf2 7.Ke2 d5–+) 6...ed4 7.Bd3 0–0 8.0–0 d6 9.h3 Nc6 10.Nbd2 Ne5 11.Rb1 Qc7 12.Bb2 Be6 13.a3 Nd3 14.cd3 Qa5 (14...d5 15.Bd4 de4 16.Bc5 Qc5 17.de4=) 15.Nd4+= Bd4 (15...Ba3? 16.Ne6 fe6 17.Nc4+–) 16.Bd4 Qa3 17.Bf6 gf6 18.Qf3 Qc3 19.Rfd1 b6 20.Rb5 (20.Rbc1 Qe5+=) 20...Kh8= 21.Nf1 f5 22.ef5 (22.Ne3 Bb3 23.Rb1 Ba2=) 22...Bd7 23.Rbb1 Bc6 24.Qh5 Rg8 25.Ne3? (25.g3 Qf6+=) 25...Qg7?? (better is 25...Bg2 26.Ng2 Qc6–+) 26.g3 Rae8 27.Ng4 f6 28.Re1 Re1 29.Re1 Bf3 30.Qh4 Bg4 31.hg4 Qf8 32.Re6+/– Rg5 33.f4 Rg7 34.Rf6 Qg8? 35.g5 Rc7 36.Re6 Qa8?? 37.Qh5 Rc1 38.Kf2 Rc2 39.Ke3 (39.Ke3 Qg8 40.Re8+–) 1–0. Teuber,Guenter (1820) – Simmon,Norbert (1675), Seniors Derby 5th, 2006.

5.d4 ed4 6.Bc4 Ne4 7.Ne5 Qe7 8.Qh5 0–0 9.0–0 Nf6 10.Bf7 Rf7 11.Qf7 Qf7 12.Nf7 Kf7 13.Nd2 d6 14.Re1 Nc6 15.Nb3 Nb4 16.Nc5 dc5 17.Re5 Nc2 18.Rb1 b6 19.Bf4 Nb4 20.Rbe1 (20.Rb4 cb4 21.Rb5 a5 22.Rb6 Nd5–+) 20...Nd3 21.Re7 Kg6 22.R1e6 (22.Bg3 Ne1 23.Re1–+) 22...Be6 23.Re6 Nf4 24.Re5 d3 25.g3 d2 26.h4 d1Q 27.Kh2 (27.Re1 Qe1 28.Kh2 Ng4) 27...Ng4 0–1. Seanypop – Klaus Behrmann (1625), ChessWorld.net, 2003.

5.Ne5 Bd4 6.Nf7 Kf7 –/+.

5.Ne5 Ne4?! 6.Qf3 Nf6 7.Bb2 =.

3.e4 Nc6

4.Ba3 Qa5 5.Nf3 Nf6 6.Bc4 Bc5 7.Bc5 Qc5 8.Qe2 0–0 9.0–0 Nh5 10.d3 Nf4 11.Qd2 b5 12.Bb3 Nd4 13.Qd1 (13.Qe3 Nf3 14.Qf3 Qd4+=) 13...d6 14.Nd4 ed4 (14...Qd4 15.c3 Qd3 16.Qd3 Nd3+=) 15.Nd2 (15.g3 Qg5=) 15...Qg5 (better is 15...Bh3!? 16.Bd5 Bg2–/+) 16.g3+= Nh3 (16...Qg6 17.Kh1 Bh3 18.Rg1=) 17.Kg2 Nf4 18.Kh1 Nh5 (18...Bh3 19.Rg1 Ng6 20.Bd5=) 19.f4 Ng3 (better is 19...Qh6 20.Qe1 Bh3+=) 20.hg3+/– Qg3 21.Qf3 Qh4 22.Kg2 Qg4 (22...Bg4 23.Qg3 Qg3 24.Kg3+–) 23.Qg4 (23.Qg3 Qg3 24.Kg3 Bb7+–) 23...Bg4 24.Kg3 h5 25.Nf3 g6 (better is 25...Bf3 26.Kf3 Kh7+–) 26.Nd4 Kg7 (26...a6+–) 27.Nb5 Rad8 (27...Rfd8 28.e5 d5 29.Nc7+–) 28.Nc3 (better is 28.Na7!? Rb8+–) 28...Bd7 29.Nd5 Rh8 30.Kh4 Rde8 31.Rae1 f6 32.Re3 Rhf8 33.Rg1 Kh6 34.Rf3 Bg4 35.Rf2 g5 36.Kg3 gf4 37.Rf4 Kg5 38.Rh1 f5 39.Nc7 h4?? 40.Kh2 a5?? 41.Ne6 Kh5?? 42.Nf8+– Rf8 43.ef5 (43.ef5 Rf5 44.Rg4 Kg4 45.Be6+–) 1–0. Grekh,Andrey – Shvets,Sergey, UKR–ch U12 Simferopol, 2000. (=1.e4 c5 2.b4 Nc6 3.bc5 e5)

4.Ba3 d5 5.Nc3 (5.ed5 Qd5 6.Nc3 Qd8+=) 5...d4 (5...de4 6.Ne4 Qa5 7.Qc1=) 6.Nd5+= Be6 (6...Nf6 7.Qf3+=) 7.Bc4 (7.Qf3 Nge7 8.Bc4 Na5 9.Bb5 Nac6+=) 7...Nf6 (7...Qa5 8.Bc1 Rc8 9.Nf3=) 8.Qf3+= Qa5? (better is 8...Nd7+=) 9.Nf6+– Kd8? (9...gf6 10.Be6 fe6 11.Qf6 Rg8 12.Qe6 Ne7+–) 10.Be6 fe6 11.Nh3 (11.Nh5 b6+–) 11...Bc5 (11...d3 12.Bb2 Qb5 13.Bc3 Bc5 14.a4+–) 12.Bc5 Qc5 13.Ng5 Qe7 14.Nfh7 Kc7 15.Qb3 (15.Qh5 Nb4 16.Kd1 d3+–) 15...Rac8 (15...Rh7 16.Nh7 Rh8 17.Rb1+–) 16.Ne6 Kb8 17.Nhg5 Nb4 (17...Rh6 18.h4+–) 18.c4 (18.Rc1 Rh6 19.f4 ef4+–) 18...d3 (18...dc3 19.dc3 Nd3 20.Kf1+–) 19.0–0 (19.Rb1 Nc2 20.Kd1 Rh6+–) 19...Rc6 (19...Rh6 20.Rab1 Na6 21.f4 ef4 22.Rf4+– (22.Nf4?! Nc5 23.Qb2 Qg5+–)) 20.Rab1 Rb6 (20...Na6 21.Qb5 Ka8 22.Qe5+–) 21.c5 Rb5 (21...Re6 22.Qe6 Qe6 23.Ne6+–) 22.a4 Ra5 23.Qb4 Ra6 24.Qb5 Rc8 (24...Kc8 25.c6 Rc6+–) 25.Qa6 Rc6 26.Qc6 (26.Qc6 b6 27.cb6 a6 28.Nc7 Kc8 29.b7 Kb8 30.Na6 Ka7 31.b8Q) 1–0. mberlin (2190) – tundeski (2550), net–chess.com, 2009. (=1.e4 c5 2.b4 e5 3.bc5 Nc6)

4.Ba3 Nf6 5.Nc3 Qa5 6.Bb2 Bc5 7.Bc4 (7.Rb1 d6+=) 7...d6 (7...Qb4 8.Bb3 Ne4–/+) 8.h3? (8.Bb3 0–0+=) 8...0–0 (8...Qb4 9.Bb3 Ne4 10.Qf3–+) 9.Nf3 (better is 9.Qe2!?+=) 9...Qb4 10.Bb3 Nd4 (better is 10...Ne4!? 11.0–0 Nc3 12.Bc3 Qf4–+) 11.0–0 Nb3 (11...Ne4 12.Ne4 Nb3 13.Nf6 gf6 14.ab3+=) 12.ab3 Ne4 13.Nd5 Nf2 14.Rf2 Bf2 15.Kf2 Qc5 16.Ne3 f6 17.d4 Qc6 18.c4 b5 (18...Re8 19.Ba3+=) 19.de5 (19.cb5 Qb7+=) 19...de5+= 20.Qd5 Qd5 (20...Qd5 21.Nd5 bc4 22.bc4 Bb7+=). Ubicu_vas – Walter_Vieira, playchess.de, 2003. (=1.e4 c5 2.b4 Nc6 3.bc5 e5)

4.Ba3 Nf6 5.Bd3 =.

4.Bb2 Bc5 5.Ne2? Qb6–+ 6.d4?? (better is 6.Qc1 Bf2 7.Kd1–+) 6...Qb2 7.dc5 Qa1 8.Nec3 Nf6 9.Bc4 0–0 10.–0 Qb2 11.Bb3 a5 12.a4 Nd4 13.f4 Nb3 14.cb3 d6! 15.fe5 de5 16.Rf2 Qa1 17.h3? Ne4!–+ 18.Ne4 Qd4 19.Qc2 Bf5 20.Nf6 gf6 21.Qf5 e4 22.Kh1 Rac8 23.Rf4 Rc5 24.Qg4 Rg5 25.Qe2 Rc8 26.Nd2 Rc2 27.Qe4 Qd2 28.Rf6 Qd1 29.Kh2 Rcg2 (29...Rcg2 30.Qg2 Rg2 31.Kg2 Qb3–+) 0–1. Medina,Edilfonso – Diaz,Douglas, HON–ch Teg, 1999. (=1.e4 c5 2.b4 Nc6 3.bc5 e5)

4.Bb2 Nf6 5.Nc3 Bc5 6.h3? (6.Rb1 Qb6 7.Nh3 d6+=) 6...Nd4?? (better is 6...Qb6 7.Na4 Bf2 8.Ke2 Qa5 9.Kf2 Ne4 (worse is 9...Qa4 10.d3–+) 10.Ke1 Qa4–+) 7.Nf3+= d6 8.Bc4 h6 9.0–0 g5 (9...0–0 10.Rb1=) 10.Nd5+= Nd5 (10...Ne4? 11.Nd4 Bd4 12.Bd4+–) 11.Bd5 1–0. cr50 – Work in Progress, ChessWorld.net, 2013. (=1.e4 c5 2.b4 Nc6 3.bc5 e5)

4.Nc3 Bc5 5.Bc4 Nf6 6.Nf3 d6 7.0–0 0–0 8.a4 (8.Rb1 a6=) 8...Bb4 9.Na2 Ba5 10.Re1 (10.d3 Bg4=) 10...Ne4+= 11.Ne5? (11.Re4 d5 Double attack (11...d5 Decoy)) 11...de5–+ (11...Ne5?! 12.Re4 Nc4 13.Rc4–/+) 12.Re4 Bf5 13.Re1 (13.Qf3 Nd4 (worse is 13...Be4 14.Qe4 Qd4 15.Qd4 Nd4 16.Rb1–+) 14.Qd3 Qc7–+) 13...Qd4 14.Ba3 Qc4 15.Bf8 Rf8 16.c3 Rd8 17.Re3 (17.Qe2 Qf4 18.Qe3 Qe3 (18...Rd2?? 19.Qf4 Ra2 20.Ra2+–) 19.de3 Bc2–+) 17...Bb6 18.Qe2 (18.Rg3 Bg6–+) 18…Bd3 (18...Bd3 19.Rd3 Qd3 (19...Rd3?! 20.Nc1 e4 21.Nd3 Qd3 22.Qd3 ed3 23.Rb1–+) 20.Qd3 Rd3–+) 0–1. Donders,Bart – de Leeuw,Dirk, IECC, 1998. (=1.e4 c5 2.b4 Nc6 3.bc5 e5)

4.Nc3 Bc5 5.Nf3 f5 (5...Nf6 6.Bc4=) 6.Rb1 Nf6 7.Bb5?? (7.ef5 0–0=) 7...d6?? (7...fe4 8.Bc6 dc6–/+ (8...ef3?! 9.Bf3 d5 10.Qe2+=)) 8.Qe2 0–0 9.0–0 (9.Bc6 bc6 10.Ne5 Qe8=) 9...Nd4 10.Nd4 ed4 (10...Bd4 11.Bc4 Kh8 12.ef5+=) 11.Qc4 (better is 11.Nd5!?=) 11...Kh8–/+ 12.e5 Ng4 13.Na4 Ne5 (better is 13...a6!? 14.Nc5 ab5 15.Qd4 dc5 16.Qc5 b6–/+) 14.Qd5+= Qe7 15.Nc5= dc5 16.f4 Ng6 17.Ba3 Qe4 18.Qc5 a6? 19.Bd3+– Qe8 20.Qd4 Qd8 21.Qd8 Rd8 22.g3 b5+/– 23.Rfe1 Bb7 24.Rbd1 Bf3 25.Be2 Be4 26.d3+– Bb7 27.Bf1 Rac8 28.c4 Bf3 29.Rc1 bc4 30.Rc4 Bd5 31.Rc8 Rc8 32.Re2 h6? 33.Bh3+– Rd8 34.Bf5 Bf7 35.Rd2 Rd5 36.Be4 Ra5 37.Bb4 Ra2 38.Ra2 Ba2 39.Bg6 Kg8 40.Kf2 1–0. Gross,Markus – Mont Reynaud,Jordy, San Mateo op, 1992. (=1.e4 c5 2.b4 Nc6 3.bc5 e5)

4.Bc4 Nf6 5.d3 Bc5 6.h3 (6.Nc3 Na5 7.Bd5 Bd4=) 6...0–0 7.Bg5 Be7 8.Nf3 h6 9.Bf6 Bf6 (9...gf6 10.Nh4 d6 11.Ng6+–) 10.Nc3 Nd4 (10...Qa5 11.Qd2+=) 11.Nd5 Qa5 12.Nd2 1–0. groovenetwork – mojosolo, ChessWorld.net, 2008. (=1.e4 c5 2.b4 Nc6 3.bc5 e5)

4.Nf3 Bc5 5.Bc4 Nf6 =.

4.Nf3 Nf6 5.d4 (5.Bc4 Bc5 6.Nc3 0–0=) 5...ed4 6.Nd4 (6.e5 Ne4=+) 6...Bc5 (6...Ne4 7.Qe2 Nd4 8.Qe4 Qe7 9.Bd3 Qe4 10.Be4 Bc5 11.Nc3–/+) 7.Be3 (7.Nc6 bc6 (7...dc6?! 8.Qd8 Kd8 9.Bg5=+) 8.Nc3 0–0=+) 7...Qb6 (7...Ne4 8.Qg4 Qa5 9.Kd1 Bd4 10.Qe4 Be5 11.Bd2–+) 8.Nc6 (8.Nf5 Be3 9.Ne3 Ne4–/+) 8...dc6 (better 8...Be3!? 9.fe3 Qe3 (9...Qc6?! 10.e5 Nd5 11.Qd4=+; 9...bc6?! 10.Qd4–/+; 9...dc6?! 10.Qd4–/+) 10.Be2 dc6–+) 9.Bc5=+ Qc5 10.Bd3 Ng4 11.Qe2 (11.Qd2 Nh2 12.Qc3 Qc3 13.Nc3 Ng4=+) 11...Ne5 (11...Qe5 12.c3 Nh2 13.Qb2–/+) 12.0–0 (12.Nd2 0–0=+) 12...0–0 13.Nd2 Be6 (13...Bg4 14.Qe1=+) 14.Nf3 (14.Nb3 Qa3=+) 14...Bg4–/+ (worse 14...Nd3 15.cd3 (worse 15.Qd3 Rfd8 16.Qe3 Qe3 17.fe3 Rd6–/+) 15...Qe7 16.Rfe1=) 15.Ne5?? (better 15.Qe3 Qe3 16.fe3–/+) 15...Be2–+ 16.Be2 (16.Nd7 Qd4 17.Be2 Qd7–+) 16...Qe5 17.Bf3 (17.Bd3 Rad8–+) 17...Rad8 0–1. Kehayov,Yulian – Trigance,Emile, FICGS, 2010.

3.e4 Nf6

4.Nc3 Bc5 5.Bc4 0–0 6.Nf3 Nc6 7.0–0 a6 8.d3 d6 9.Bg5 h6 10.Bh4 g5 11.Bg3 Bg4 12.h3 Bh5 13.Bh2? (13.Nb1 Nd4–/+) 13...Bf3 (better is 13...Bd4 14.Qe1 Bf3 15.gf3 b5–+) 14.Qf3+= Nd4 (14...Bd4 15.Nd5 Nd5 16.ed5=) 15.Qd1= b5 16.Bd5 (16.Bb3 Nb3 17.cb3 b4=) 16...Rb8 (16...Rc8 17.Bb7 Rc7 18.Ba6–/+) 17.Ne2 (17.Bb3!?=) 17...Nd5–/+ 18.ed5 Ne2 19.Qe2 Bd4 20.Rac1 b4 21.h4 (21.a3 Bb2 (21...ba3?! 22.c3 Bc5 23.d4 ed4 24.cd4 Bd4 25.Qd3+=) 22.d4 ba3 (22...Ba3?! 23.Rcd1+=) 23.de5 a2–+) 21...Kg7 22.Kh1 Qa5 (22...gh4?! 23.f4 Qe7 24.fe5 de5 25.Rf5=) 23.Qf3 (23.hg5 hg5 (23...Qd5?! 24.gh6 Kh6 25.f4+=) 24.Qg4 Kg6–/+) 23...f5 (23...f6 24.Rce1–+) 24.Qh5 Qd5 25.hg5 Qe6 26.f4 hg5 27.fe5? (27.Qg5 Qg6 28.Qg6 Kg6 29.a3 ba3 30.c3–+) 27...Be3–+ (27...Be5 28.Qg5 Kh7 29.Rce1+=) 28.Qe2 f4 (better is 28...Bc1 29.Rc1 f4–+) 29.ed6?? (29.Rce1 Rh8 30.Rf3 Rh2 31.Kh2 Rh8 32.Rh3–+) 29...Rh8 (29...Qa2?! 30.Ra1 Qd5 31.Ra6+=) 30.Rf2 (30.Rf3 Rh2! 31.Kh2 Rh8 32.Rh3–+) 30...Rh2! 31.Kh2 Rh8 32.Kg1 Qh6 (32...Qh6 33.Qh5 Qh5 34.Kf1 Qg4 35.g3 Rh1 36.Kg2 Rc1 37.Rf3 Rg1 38.Kh2 Qh5#; 32...Bf2?! 33.Qf2 Qd6 34.Re1+=) 0–1. Teichmann,E (2370) – Grigg,S (2010), Doeberl Cup Premier, 2011.

4.Nc3 Bc5 5.Bc4 0–0 6.Nf3 Nc6 7.0–0 d6 8.h3 Be6 9.Be6 fe6 10.d3 Nd4 11.Na4 Nf3 12.Qf3 Bd4 13.c3 Nd5 14.Qg4 Nc3 15.Qe6 Kh8 16.Nc3 Bc3 17.Rb1 b6 18.Be3 Rc8 19.Rfc1 Re8 (19...Rc7 20.Rc2 Qc8 21.Qc8 Rfc8 22.Rbc1+/–) 20.Qg4 d5 21.Rb5 d4 22.Rd5 Qf6 23.Bd2 Rf8 24.f4 ef4 25.Rf5 Qe7 26.Rf8 Rf8 27.Bf4 Qf7 28.Be5 Qf2 29.Kh2 Rf7 30.Rc2!? Qf1 31.Bg3 h6= 32.Qh5 Kg8 33.Qd5+= Kh8 34.e5 Rf8= 35.e6 Qd3 36.e7 Re8 37.Rc3! Qc3 38.Qf7 Qc8?? 39.Be5 Rg8 40.Qh5 Qc1?? 41.Bg7 (41.Bg7 Kg7 42.e8Q Re8 43.Qe8 Qc7 44.Kh1–+) 1–0. Duerwald,Martin – Mantler,Thorben, Verbandsklasse, 2005.

4.Nc3 Bc5 5.Bc4 Qc7 6.Qe2 0–0 =.

4.Nc3 Bc5 5.Nf3 0–0 (5...Ng4 6.d4 ed4 7.Nb5–/+) 6.Bc4= d5 (6...d6 7.Rb1=) 7.ed5 (better is 7.Bd5 Nd5 8.Nd5+= (worse is 8.ed5 e4+=)) 7...Bf2?? (better is 7...e4 8.Ng5 Bf5=) 8.Kf2+– Qb6 9.Ke1 Ng4 (9...e4 10.Ng1+–) 10.Rf1 (10.Qe2 Nd7+–) 10...Nd7 (10...e4 11.Ng5+–) 11.Qe2 Nc5 12.Ne5 Nh2 13.Rh1 Bf5 14.Rh2 Qf6 15.d4 Rac8 16.Ba3 b6 17.g4 Bc2 18.Qc2 Qe5 19.de5 (19.de5 h6 20.Qf5+–) 1–0. Unwine,Eugene – Yeargin,Tommy, IECC, 2005. (=1.e4 c5 2.b4 Nf6 3.bc5 e5)

4.d3 Bc5+= 5.h3 (5.Nc3 Nc6+=) 5...d5–/+ 6.Nc3 (6.ed5!? 0–0 7.Nf3–/+) 6...de4–+ 7.Be3 Bb4 8.Bd2 Bc3 9.Bc3 0–0 10.Ne2 Nc6 11.Ng3 ed3 12.Bd3 Nd5 13.Qd2 (13.Qh5 h6 14.Bd2 Qc7–/+) 13...Be6–+ 14.0–0 Qe7 15.Rfe1 f6 16.Bb2 Rad8 17.a4 Rf7 18.Ba3 Qc7 19.Ne2 Rfd7 20.Rad1 h6 21.c3 e4! 22.Bc4 (22.Be4 Nc3) 22...Ne5 (22...f5–/+) 23.Bb3? (better is 23.Bb5+=) 23...Bf7–+ 24.Bd5 Rd5 (24...Bd5 25.Qe3–+) 25.Nd4 Nf3 (better is 25...f5–+) 26.gf3+= Rg5 27.Qg5? (27.Kh1 Qc8 28.Kh2–+) 27...hg5–+ 28.fe4 Qc3 29.Re3 (29.Nb5 Rd1 30.Nc3 Re1 31.Kg2 Bg6–+) 29...Qc4 (29...Rd4?! 30.Rc3 Rd1 31.Kg2–/+) 30.Bb2 a5 (30...Qa4 31.Ra1 Qb4 32.Bc3–+) 31.e5 fe5 32.Re5 Qa4 33.Ree1 (33.Ra1 Qc4–+ (33...Rd4?! 34.Ra4 Ra4 35.Rg5+=)) 33...Qb4 34.Ba1 a4 35.Rb1 Qa5 (35...Rd4?! 36.Rb4 Rb4 37.Kh2–+) 0–1. pvaras (2410) – pcmvr (2810), net–chess.com, 2010.

4.d4 Qa5 5.Qd2 Qd2 6.Nd2 ed4 =.

4.d4 ed4 5.Qd4 Nc6 6.Qd3 (6.Qc4 Qa5 7.Bd2 Qc5=) 6...Bc5=+ 7.Be3 (7.Nc3 0–0 8.f3 d5–/+) 7...Qa5 8.c3 0–0 9.Bc5 Qc5 10.Nf3 (10.Nd2!?–/+) 10...Re8–+ 11.Nbd2 (11.Nfd2 d5 12.Be2 Bf5–+) 11...d5 12.Be2?? (better 12.Qe3 Qe3 13.fe3 de4 14.Nd4–+) 12...de4 (12...Ne4?! 13.0–0 Nc3 14.Rac1 Ne2 15.Qe2 Re2 16.Rc5–+) 13.Qe3 (13.Qe3 Qe3 14.fe3 ef3 15.Nf3 Re3 16.Kd2–+) 1–0. Kehayov,Yulian – Voveris,Saulius (1800), FICGS, 2010.

3.Nf3 Nc6

4.Bb2 (--> 3.Bb2 Nc6 4.Nf3).

4.Bb2 f6 5.e3 Bc5 (--> 3.Bb2 Nc6 4.Nf3 Bc5 5.e3 f6).

3.f4 ef4+=

4.Nf3 Bc5 5.Bb2 Nf6–/+ 6.d4 Bb4 7.c3 Ba5 8.Qa4 (8.Qc1 Nd5–/+) 8...0–0–+ 9.Nbd2 d5 10.Nb3 Bc7 11.0–0–0 (11.Nbd2 Nc6–+) 11...Bd7 12.Qa3 Bc6 13.Ba1 (13.Nc5 Ng4 14.Re1 Bd6–+) 13...Bd6 14.Qb2 Nbd7 15.Qc2 (15.g3 Ng4–+) 15...Rc8 16.Ng5 Ba4 (16...Nb6 17.g3–+) 17.h4 (17.g3 Re8–+) 17...h6 18.Nf3 Ne4 19.g4 Nf2 (19...Bb4 20.Kb1–+) 20.Bg2 Nd1 21.Rd1 Nf6 22.g5 Ne4 23.Ne5 Be5 24.Be4 de4 25.de5 Qe7 26.Qe4 b5 27.gh6–/+ b4 28.hg7+= Kg7?? 29.Rg1+– Kh8 30.Qf5?? f6+= 31.Rg6 Rf7?? 32.h5 Re8?? 33.Rf6 Rf6 34.ef6?? Qe3–+ 35.Kc2 Qe2 36.Kb1 Qd1 37.Kb2 Re2 38.Nd2 Rd2 39.Qc2 Qc2# 0–1. dtpwaldi – rykszarz (1710), kurnik, 2012.

4.Nf3 Bc5 5.d4 Bd6 6.e4 fe3 7.Qd3 +=.

4.Nf3 Nf6 5.d4 d6 6.cd6 (6.Bf4 dc5 7.e3 Nc6+=) 6...Bd6 7.c4 Nc6 8.c5 Bc7 9.Na3 (9.Qa4!?–/+) 9...Ba5–+ 10.Bd2 Ne4 11.Nc4 Nd2 12.Ncd2 0–0 (12...Bc3 13.Rc1 Bd4 14.g3–+) 13.Kf2 (13.Qa4!?–/+) 13...Bc3–+ 14.Rc1 (14.Nc4 Ba1 (14...Nd4?! 15.Rc1 Nf3 16.Qd8 Rd8 17.Rc3–+) 15.Qa1 b6–+) 14...Bd4 15.Nd4 Qd4 (15...Nd4?! 16.Nf3 Nc6 17.Qd8 Rd8 18.e3 fe3 19.Ke3 Re8 20.Kf4–/+) 16.Ke1 Rd8 17.Rc4 (17.Qc2–+) 17...Qe3 18.Qc1 (18.Re4 Qc5 19.Rc4 Qg5–+) 18...Ne5 19.Qc2 (19.Rc3 Nd3 20.Rd3 Rd3 21.Qc2–+) 19...Bf5!! 20.Re4 (20.Qf5 Qd2 Double attack (20...Rd2 Deflection)) 20...Be4 21.Qe4 Nd3 22.Qd3 Rd3 23.Nc4 Rc3 24.Ne3 fe3 25.Kd1 Rd8 26.Ke1 Rc1 0–1. Pal,Laszlo – Fournier,Frederic (2095), Northern Lights (thematic), 2004.

2.bc5 e6

3.d4 a5 4.e3 Nc6 5.Nf3 Nf6 6.Bd3 d6 7.cd6 Bd6 8.0–0 0–0 9.c4 (9.Ba3 Ba3 10.Na3 Nb4+–) 9...Be7 (9...e5 10.Nc3+–) 10.Nc3 a4 (10...b6 11.a3+–) 11.a3 Na5 (11...Re8 12.Rb1+–) 12.Rb1 (12.Qa4 Re8+–) 12...Nb3 13.Na4 (13.Bb2+–) 13...Ra4? (better 13...Nc1 14.Rc1 Bd7+–) 14.Qb3+– Qa5 (14...Ra7 15.c5+–) 15.Bd2 (better 15.Bc2 Bd7 16.Ne5 Rc8+–) 15...Qa7 16.Bb4 Bb4 17.ab4 Ra3 18.Qc2 Ra2 19.Rb2 Bd7 (19...Rb2 20.Qb2 b6+–) 20.Ra2 (20.Ra2 Qb6 21.b5+–) 1–0. BeepBeepImAJeep (2655) – Wellblech01 (1905), lichess.org, 2016.

3.d4 Qa5 4.c3 g6 (4...Nf6 5.Bg5+–) 5.e3 Bg7 6.Nf3 Nf6 7.Bd3 Nd5 (7...b6 8.cb6 ab6 9.Bd2+–) 8.0–0 Nc3?? (8...Nc6 9.Bd2 e5 10.c4+–) 9.Bd2 (better 9.Qe1 b6 10.Bd2 0–0 11.Nc3 Ba6+–) 9...b5?? (better 9...Nd1 10.Ba5 Nb2+–) 10.Bc3 (better 10.Nc3 b4 11.Nb5+–) 10...Bd4 (10...b4 11.Bb2 Ba6+–) 11.Ba5 Ba1 12.Nc3 (12.Nc3 b4 13.Nb5+–) 1–0. alessandrocarvalhaes (1865) – Yarpskendaya (1835), lichess.org, 2019.

3.d4 Ne7 4.e4 Nbc6 5.Nf3 Ng6 6.Bc4 Be7 7.0–0 0–0 8.Nc3 a6 9.Be3 Qa5 10.Qd3 Nb4 11.Qd2 Rd8 12.a3 Nc6 13.e5 Qc7 14.Ne4 Qa5 15.c3 Qa4 16.Bd3 Qa5 17.Nfg5 Bg5 18.Bg5 Nd4 19.cd4 1–0. Wall,Bill – Pilfer, Internet (2001.03.24), 2001.

3.d4 Qf6 4.Nf3 Bc5 (4...Bc5 5.Bg5 Qf5 6.dc5 Qc5+–). GuestPJSX – GuestTTKB, freechess.org, 2017.

3.e3 Bc5= 4.Bb2 Nf6 5.d4 (5.Nf3 d5=) 5...Be7 6.Nf3 Nc6 7.Bd3 0–0 8.0–0 d5 9.Nbd2 b6 10.c4 Nb4 11.Be2 dc4 12.Nc4 Ba6 13.Nce5 Be2 14.Qe2 Rc8 15.a3 Rc2 16.Qb5 (16.Qd1 Rb2 17.ab4 A) 17...Bb4? 18.Nc4 (18.Ra7?! Bd6+=) 18...Bc3 19.Ra3+–; B) 17...Qd5+=) 16...Rb2 (16...a6 17.Qa4 b5–/+ (worse is 17...Rb2 18.ab4 Rb4 19.Qc2+=)) 17.ab4= Rb4 18.Qa6 Qc7 (18...Qd5 19.Qa7 Bd6 20.Rfc1=) 19.Qa7 (19.Rfc1 Qd6+=) 19...Qa7 20.Ra7 Bd6 21.Nc6 Rb2= 22.Rb7 Nd5 23.h3 b5 24.Nfe5 Be5 25.Ne5+= b4 26.e4 Nc3= 27.Nd3 Rb3 28.Rb4?? Ne2–+ 29.Kh2 Rd3 0–1. Fournier,Frederic – watford, ICC, 2005.

3.Bb2

3.Bb2 (--> 1.b4 e6 2.Bb2 c5 3.bc5).

3.Bb2 Nf6 4.a3 (--> 1.b4 e6 2.Bb2 Nf6 3.a3 c5 4.bc5).

3.Bb2 Nf6 4.a3 Bc5 5.e3 0–0 6.Nf3 d5 (--> 1.b4 d5 2.Bb2 Nf6 3.e3 e6 4.a3 c5 5.bc5 Bc5 TESTD250 6.Nf3 0–0).

3.d4 b6

4.cb6 ab6 5.e3 Ba6 6.Nf3 Bf1 7.Kf1 Nf6 8.g3 d5 9.Kg2 h5 10.h4 Ne4 11.Nbd2 Bd6 (better 11...Nc3!? 12.Qf1 Nd7+= (worse 12...Ra2 13.Ra2 Na2 14.Qb5 Nd7 15.Bb2+–)) 12.Ne4+– de4 13.Nd2 (13.Ng5 f5+–) 13...f5 14.c4 Nd7 15.Bb2 Nf6 16.d5 (16.Qb3 Bc7+–) 16...e5 17.Nb3 (17.Rf1 0–0+=) 17...0–0 18.a4 f4 19.a5 (19.ef4 ef4 20.Nd4 f3 21.Kg1 e3 22.fe3 Ng4 23.Nf3 Ne3=) 19...f3 (19...fe3 20.fe3 Ng4 21.Bc1–/+) 20.Kf1 (20.Kg1 ba5 21.c5 a4 22.cd6 ab3 23.Be5 Ng4–+) 20...ba5=+ 21.c5 Bb8 (21...a4 22.cd6 ab3 23.Be5 Ng4–+) 22.d6= Ba7? (better 22...Qe8!? 23.Kg1 a4=) 23.Ra5 (23.Be5 Ng4 24.Qd5 Rf7+–) 23...Re8 (23...Qe8 24.Qc2 Qe6 25.Nd2+–) 24.Qc2 (24.c6!? Qb6 25.d7 Red8+–) 24...Qd7+– 25.Qc4 Kh7 26.Kg1 Qg4 (26...Rab8 27.Bc3 Ra8 28.Qa4 Qa4 29.Ra4=) 27.Ra1 (better 27.Nd2+–) 27...Bb8?? (better 27...Qd7+–) 28.Ra8+– Rc8 (28...Qd7 29.Na5+–) 29.Nd2 Nd7 30.Qe4 Qe4 31.Ne4 Nc5 (31...Kg6 32.Ba3 Kf5 33.Ng5+–) 32.Nc5 Rc5 33.Rb8 (33.Rb8 Rd5 34.Be5 Re5 35.d7+–) 1–0. BeepBeepImAJeep (2400) – Jagodinac (2135), lichess.org, 2015.

4.cb6 ab6 5.e3 Nf6 6.Nf3 Ne4 7.Bd3 d5 8.0–0 e5? (better is 8...Ba6+/–) 9.Ne5+– f6?? (9...Bd6+–) 10.Qh5 g6 11.Ng6! hg6 12.Qh8 Bf5 (12...f5 13.Bb5 Kf7 14.Ba3+–) 13.f3 (13.Ba3 Nd7 14.Qg8 Ng5+–) 13...Nd6 14.Qg8 Nd7 (14...Bd3 15.cd3 Nc6 16.Qd5+–) 15.Nc3 Nf7 16.Nd5 Nh6 (16...Bd3 17.cd3 g5 18.f4+–) 17.Bf5 gf5 (17...Ng8?? 18.Bg6) 18.Qe6 Be7 19.a4 Kf8 20.Ne7 Qe7 21.Ba3 Nc5 22.Qe7 Ke7 23.dc5 bc5 24.Bc5 Ke6 25.a5 Kd5 26.Bd4 Ng8 27.Rfb1 Ne7 28.Rb5 Kc6 29.c4 Nc8 30.Rf5 Nd6 31.Rf6 (31.Rf6 Kd7 32.c5+–) 1–0. Pcmvr – Oyetola, playchess.de, 2005.

4.cb6 ab6 5.e4 +/–.

4.cb6 ab6 5.Nf3 Nf6 6.e3 Bb7 7.Bd3 Be7 8.0–0 0–0 9.Nbd2 d6 10.c4 Nbd7 11.a3 Ra7 (11...d5 12.cd5 Nd5 13.Qb3+–) 12.Bb2 (12.e4 Qc7+–) 12...Qa8 13.Qc2 (13.Qb1 h6+–) 13...Rc8 14.Rfc1 h6 (14...b5 15.Qd1 bc4 16.Nc4+=) 15.h3 (15.Qb3 d5+–) 15...Bf8 (15...d5 16.Qb3+=) 16.Qb1 Ra4 (16...d5 17.cd5 Rc1 18.Bc1 Bd5 19.e4+=) 17.Ne1 (17.e4 Be7+–) 17...d5 18.cd5 Bd5 (18...Rc1 19.Qc1 Bd5 20.f3+–) 19.e4 (19.Rc8!? Qc8 20.e4+–) 19...Rc1+= 20.Bc1 Bb7 (20...Bc6 21.Nef3+=) 21.Nef3 White prepares the advance e5 (21.e5 Nd5 22.Nef3+=) 21...Qb8 (21...Bb4 22.Bb2 (worse 22.ab4 Ra1 23.Qb2 Ra2=+) 22...Be7 23.d5 ed5 24.e5+–) 22.Bb2 (22.e5 Bf3 23.Nf3 Nd5+–) 22...Qa8 (22...Bc6 23.Bc2 Ra7 24.Qf1+–) 23.e5 (23.d5 ed5 24.e5+–) 23...Nd5 (23...Nh5+–) 24.Bh7 (better 24.Bb5!? Ra5 25.Bd7+–) 24...Kh8+= 25.Bc2 Be7? (better 25...Ra7+=) 26.Ba4+– Qa4 27.Qd1 Qa8 28.Rc1 Kg8 29.Nc4 (29.Qb3 Bc6+–) 29...Nf8 (29...Nf4 30.Kh2+–) 30.Nd6 (30.a4 Ng6+–) 30...Bd6 31.ed6 Qd8 32.Qb3 (32.Ne5 Qd6 33.Qa4 Nf4+–) 32...Qd6 33.Ne5 Ng6 (33...Nd7 34.Qb5 N7f6 35.a4+–) 34.Ng6 fg6 35.Qc4 (35.Qf3 b5+–) 35...Kh7 36.Qd3 (better 36.Qb5+–) 36...Nf4+= 37.Qg3?? (better 37.Qb5 Bg2 38.Qe5+=) 37…Ne2–+ (37...Ne2 38.Kh2 Ng3 39.fg3 Qd5–+) 0–1. TwelveTeen (2660) – Sigma_Tauri (2745), lichess.org, 2018.

4.cb6 Qb6

5.c4 Bb4=+ 6.Bd2 Ba6 7.e3 Nf6 8.Nf3 0–0 9.Qa4 Bd2 10.Nbd2 (10.Nfd2?! Qb2 11.Nb3 Ne4+=) 10...Qc6 11.Qa3 d6 12.Rb1 Nbd7 (12...Rd8 13.Bd3+–) 13.d5!+– Qc8 (13...ed5 14.cd5 Combination) 14.de6 fe6 (14...Nc5 15.ef7 Rf7 16.Bd3+–) 15.Qd6 e5 (15...Nc5+–) 16.Qe6 Kh8 17.Ng5 (17.Ne5?! Ne5 18.Qe5 Ng4+–) 17...h6 (17...h6 18.Nf7 Rf7 19.Qf7 Qc7+–) 0–1. Voveris,Saulius (1800) – Colarina,Floram, FICGS, 2010.

5.e3 Nc6 6.Nf3 Nf6 7.c3 Rb8 8.Bd3 d5 9.0–0 Ba6 10.Qe2 Bd3 11.Qd3 Be7 12.Ba3 Ba3 13.Na3 Qa5 14.Nb1 0–0 15.Nbd2 Rb2 16.a3 Rfb8 17.c4 Qa6 18.Qc3 dc4 19.Qc4 Qb7 20.Qd3 Qd7 21.Rfb1 Rb1 22.Rb1 Rd8 23.Nc4 Qd5 24.Nfe5 h6 25.Nc6 Qc6 26.Ne5 Qd5 27.Qb3 Qe4 28.Qb7 Qc2 29.h3 Rf8 30.Qb2 Qe4 31.Rc1 Nd5 32.Qb7 f5 33.Qb1 Qb1 34.Rb1 f4 35.Ng6 Rd8 36.Rb3 Kh7 37.Ne5 Rc8 38.Rd3 Rc1 39.Kh2 Re1 40.ef4 Nf4 41.Re3 Rf1 42.Rf3 Ne2 43.Nc6 a6 44.Rd3 Nf4 45.Rd2 Rc1 46.Nd8 Rc8 47.Nb7 Rc3 48.a4 Rc4 49.a5 Kg6 50.g3 Nd5 51.Re2 Nc7 52.Nc5 Kf7 53.Rb2 Nd5 54.Na6 Ra4 55.Nc5 Ra5 56.h4 Kf6 57.Kg2 Ra7 58.Rb7 Rb7 59.Nb7 e5 60.de5 Ke5 61.Nd8 Kf5 62.f3 h5 63.Kh3 Ne3 64.Nc6 g6 65.Nd4 Ke5 66.Ne2 Nd5 67.Kg2 ½–½. Wolf – Hattendorf, 1982.

5.e3 Nc6 6.Nf3 g6 7.Bd3 Bg7 8.0–0 Nf6 9.Nbd2 Qc7 10.c4 Ng4 11.h3 h5 12.Ba3 (better 12.Rb1+–) 12...e5? (better 12...Nf6+–) 13.d5 (13.hg4 hg4 14.Ne4 gf3 15.Nd6 Qd6 16.Bd6 fg2 17.Kg2 ed4 18.ed4 Bd4 19.Re1 Kd8+–) 13...Ne7 14.d6 (14.hg4 hg4 15.Ne1 e4+–) 14...Qa5 15.de7 (better 15.Bb2!? Nc6+–) 15...Qa3 16.Ne4 (16.Be4 Rb8 17.hg4 hg4+–) 16...Nf6 (16...f5 17.c5 A) 17...fe4? 18.Be4 Qc5 19.Ba8+– (19.hg4?! Rb8+–); B) 17...Ne3 18.Nd6 Ke7 19.fe3 Qc5 20.Nc8 Rhc8+–) 17.Nfd2?? (17.c5 Bb7 18.Nf6 Bf6 19.Bb5+–) 17...Qe7?? (better 17...Qd3 18.Nf6 Bf6=) 18.c5 0–0 19.Nf6 (19.Rb1 a5+–) 19...Bf6 (19...Qf6 20.Qb3+–) 20.Ne4 Bg7 (20...Bb7!?+–) 21.Rb1+– d6 22.Nd6 Be6 23.Bc4 (better 23.Rb7 Qh4 24.Qd2+–) 23...Bc4+= 24.Nc4 Qc5 25.Nd2 (25.Qb3 Rfd8=) 25...Qe7 (25...Rfd8 26.Rb7=) 26.Nb3 Rfb8 27.Qd5 Rd8 28.Qc5 Rab8?? (better 28...Qc5 29.Nc5 Rac8=+) 29.Qe7+– Re8 30.Qa7 Red8 (30...Ra8 31.Qb7+–) 31.Qa5 (31.Rfd1!? Rf8+–) 31...Ra8 32.Qc5 (32.Rbd1 Rdb8 33.Qd5 Ra2+–) 32...Rac8 (32...Ra2 33.Rfd1 Raa8 34.Rd8 Rd8 35.Qc7+–) 33.Qb4 Rb8 34.Qe4 Rbc8 35.Na5 (35.Rfd1 Kh7+–) 35...Re8 36.Nb7 (better 36.Rb7 Bf6+–) 36...Rb8 37.Nd6 Red8 38.Rb8 Rb8 39.Qc4 Rd8 40.Qf7 Kh8 41.Ne4 (41.Rc1 Bh6 42.Rc7 Rd7 43.Rd7 Be3 44.Qe8) 41...Rf8 42.Qg6 Rg8 (42...Kg8 43.Rd1 Ra8 44.Rd7 Ra2 45.Qg7) 43.Ng5 Bh6 (43...e4 44.Qh7) 44.Qh7 (44.Qh6) 1–0. BeepBeepImAJeep (2575) – Marcelopulus (1850), lichess.org, 2018.

5.e3 Nf6 6.Bd3 Be7 (6...d5 7.Nf3+/–) 7.Nf3 0–0 8.0–0 Nc6 9.Nbd2 Nb4 10.Qe2 (10.Ba3 Nfd5+/–) 10...Qc7 11.c4 (11.Ba3 Nfd5 12.Bb4 Bb4+/–) 11...a5 (11...Nd3 12.Qd3 Rb8+/–) 12.a3 (12.Bb1 Rb8+/–) 12...Nd3+= 13.Qd3 Ba6 14.Bb2 Rfc8 15.Rfc1 Rab8 (15...d5 16.Qb1 dc4 17.Nc4+=) 16.Rab1 (16.Rc2 d5 17.Rac1 Ne8=) 16...Rb7 (16...d5!?=) 17.Qc3 Rcb8 18.Rc2 d5 19.c5 (19.Ne5 Nd7 20.Nd7 Qd7+/–) 19...h6 (19...Ne4!? 20.Ne4 Rb3=) 20.Ne5+/– Nd7?? (better is 20...Bb5+/–) 21.Nd7+– Qd7 22.Qa5 Qc6? 23.Qc3 Bf6 24.g3 Be2 25.f4 Bg4 26.Kf2 Bf5= 27.e4 de4 28.Ke3 Rd8 29.Nb3? Rdb8?? 30.Ba1?? Qa4–/+ 31.Rcb2 e5?? 32.fe5 Bg5 33.Ke2 Be6 34.h4+/– Be7 35.Ke3?? f5?? 36.Nd2 Rb2+/– 37.Rb2 Rb2 38.Bb2 Qd1 39.Nc4?? Qg1 40.Ke2 Qg2 41.Ke3?? Qg3 42.Ke2 Qg2 43.Ke3 Qh3 44.Ke2? Qh2 45.Ke3?? Bh4 46.Nd6 Bg5 (46...Qf2) 0–1. Fournier,Frederic – ogoyes, Partie amicale, 2m + 2s, 2008.

5.e4 Bb7 6.f3 +/–.

5.e4 Nf6 6.f3 (6.e5 Ne4 7.c3 h6+–) 6...Nc6 7.Be3 (7.c3!?+/–) 7...Qb2= 8.Nd2 Nd4 Attacking the backward pawn on c2 9.Bd3 (9.Rc1 Qc3 10.Bd3 Rb8=) 9...Bc5 10.Kf2 (10.Bf2=) 10...0–0 (better is 10...Qc3!? 11.Ne2 Ne2 12.Qe2 d5=) 11.Nc4+/– Qb5 12.Rb1 Qa4? (better is 12...Qc6 13.e5 Nd5 14.Bh7 Kh7 15.Bd4 Ba6=) 13.c3+– Qd1 14.Rd1 d5 15.Ne5 (15.Bd4?! Bd4 16.cd4 dc4 17.Bc4 Bd7+/–) 1–0. Olej,Emil – Nemeskal,B, corr tt CSSR, 1964.

5.Nf3 Ba6 6.e3 (6.e4 Bf1 7.Kf1 Nf6+/–) 6...Bf1+= 7.Kf1 Nf6 8.Ba3 Qa6 9.Qe2 Ba3 10.Qa6 Na6 11.Na3 0–0 (11...Rb8 12.Ke2+/–) 12.Ke2 Ne4 13.c4 (13.Nd2 Nc3 14.Kd3 Rfc8+=) 13...Rab8 14.Kd3?? (14.Rhc1!?+/–) 14...d5?? (14...Nf2 15.Kc3 Nh1 16.Rh1–+) 15.Rab1?? (better is 15.Rhc1=) 15...Nf2–+ 16.Ke2? Nh1 17.Rh1 dc4 18.Nc4 Rfc8 19.Nce5? Rb2 20.Kd3 Rg2 21.Re1 Nb4 (21...Nb4 22.Ke4 f5 23.Kf4 Nd5) 0–1. Fournier,Frederic – Betulov (1965), Active, 2008.

5.Nf3 Bb7 +/–.

3.d4 Nc6

4.Bb2 Nf6 5.Nf3 d5 6.e3 a6 7.Bd3 g6 (7...Rb8!?+=) 8.0–0 Bg7 (8...Rb8 9.c4+/–) 9.Nbd2 0–0 10.c4 Nb4 (10...Rb8 11.Rb1+–) 11.Be2 Bd7 12.a3 Nc6 13.cd5 ed5 14.Rb1 Rb8 15.Qc2 Re8 16.Rfe1 (16.Bd3 Qc7+–) 16...Bf5 17.Bd3 Ne4 18.Kh1?? (better is 18.Bc3+/–) 18...Nf2–+ 19.Kg1 Nd3 (19...Nd3 20.Qa4 Ne1 21.Re1 Re6–+) 0–1. Fournier,Frederic (1815) – tranquilin, Active, 2011.

4.c3 Nf6 5.Nf3 d5 6.e3 b6 7.cb6 Qb6 8.Bd3 (8.c4 dc4 9.Bc4 Bb4 10.Bd2 Ba6 11.Ba6 Qa6+/–) 8...Bd6 (8...Ba6 9.0–0+=) 9.0–0 e5 10.de5 Ne5 11.Ne5 Be5 12.g3 (12.e4 de4 13.Be4 Rb8+=) 12...0–0 13.Bb2?? (13.a4 Rb8=) 13...Re8 (13...Qb2!? 14.Nd2 Bc3 15.Nb3–+) 14.Nd2?? (14.Qb3=) 14...Bd6 (better is 14...Qb2 15.Nb3 Bh3–+ (worse is 15...Bc3 16.Qc1–+)) 15.Qc2+= Bg4 16.f3?? Be6 17.Kg2 Re7 18.e4 de4 19.Ne4+/– Ne4 20.Be4 Qa6?? 21.Ba8+– Ba2 22.Ra2! Qa2 23.Ra1 Qb2 24.Qb2 Be5 25.Be4 h6 26.Qc2 1–0. Fournier,Frederic (1725) – alalal (1670), Active blind, 2011.

4.c4 Qf6 5.Nf3 Bc5 The pressure on d4 grows 6.Bb2 Nge7 (6...d5 7.cd5 ed5 8.Qb3 (worse is 8.dc5 Qb2 9.Nbd2 Nb4–/+) 8...Bb4 9.Bc3+=) 7.a3 (7.Bc3 Bb4+=) 7...Bb6 8.e3 0–0 9.Bd3 d5 10.0–0 Nf5 11.Nc3 dc4 12.Bc4 Bd7 13.Na4 Na5 (13...Bc7 14.d5 Ne5 15.Be5 Be5 16.Ne5 Qe5 17.Nc5=) 14.Nb6+/– ab6 15.Bd3 Rfd8 16.Rc1 Bc6 17.Bc3 Nh4 18.Nh4 (18.Ne1 Qg5 19.f4 Qh6+/–) 18...Qh4 19.g3 Qh3 20.e4 (20.f3 b5+=) 20...b5= 21.Re1 Nc4 22.Bf1 Qh6 23.Bc4 (23.Bb4 Na3 24.Be7 Rd7 25.Ba3 Ra3 26.Bb5 Qf6 27.Bc6 Ra2+=) 23...bc4+= 24.Bd2 (24.Bb2 b5+=) 24...Qg6–/+ 25.Rc4 Be4 26.Bb4 Rac8 27.Qe2 Bd5 28.Rcc1 Qf5 29.Be7 Re8 30.Bc5 h5 31.Bd6 Rc1 32.Rc1 Bc6 33.Bf4 Qd5 34.f3 Qd4 35.Be3 Qf6 36.Rf1 e5 37.Bc5 h4 38.Qe3 Qg6 Black prepares the advance e4 39.Kf2 Re6 40.Qd2 e4 41.Qd8 Re8 42.Qh4 Qf5 (42...Qf5 43.Be7 ef3–+; 42...ef3?! 43.Kg1–+) 0–1. pvaras (2410) – pierred (2765), net–chess.com, 2010.

4.e3 Nf6 5.Nf3 b6 6.cb6 Qb6 White gets strong play along the open b–file 7.Bd3 d5 8.0–0 Bd6 9.Nbd2 Bd7 (9...Qa5 10.c4+–) 10.Rb1 Qa6?? (10...Qa5 11.a3+–) 11.c4 (better 11.Ba6 Nb4 12.Ba3 Bh2 13.Kh2 Na6 14.Bd6 Ng4 15.Kg1+–) 11...Qa2 12.c5 Bc7 13.Bb2 (13.e4 de4 14.Ne4 Nd5+–) 13...Rb8+= 14.Bc3 Rb1 15.Qb1 (15.Bb1 Qa3 16.Qc2 a5+=) 15...Qb1= 16.Rb1 0–0 (16...Ke7!?+=) 17.Rb7+– Bb8 18.Ne5 Ne5 (better 18...Bc8!? 19.Rf7 Rf7 20.Nc6 Bc7+–) 19.de5+– Bc8?? (better 19...Ne4 20.Ne4 Bc6+–) 20.Rb8 (20.Rb8 Nd7 21.Ra8+–; 20.ef6 Bb7 21.fg7 Rc8=+) 1–0. BeepBeepImAJeep (2545) – Sam2491 (2120), lichess.org, 2017.

4.e4 b6 5.cb6 Qb6 +/–.

4.Nf3 Nf6 5.e3 b6 6.cb6 ab6 7.Be2 Bb4 8.c3 Bd6 (8...Be7 9.0–0+/–) 9.c4 0–0 10.Nc3 Ba6 11.0–0 Na5 12.Nb5 Be7 13.Bb2 Ne4 14.Rc1 Bb7 15.d5 Bf6 16.Bd4 Rc8 17.Nd2 ed5 18.Ne4 de4 19.Nd6 Rc6 20.c5 Bd4 21.Qd4 bc5 22.Rc5 Rc5 23.Qc5 Bc6 24.Rd1 g6 25.g3 f5 26.h4 h5 27.a4 Kh7 28.Bb5 Qf6 29.Qb4 Ra8 30.Bc6 Nc6+= 31.Qb7 Rd8 32.Nc4 Qf7 33.Nb6+/– Ne5 34.Qc7 Re8 35.a5 Kh6 36.Rd5 Qf6 37.Kg2+– Nd3 38.Qd7 Rg8 39.Rd4 Ne1 40.Kf1 Nd3 41.Qc7 Qg7 42.Qg7+– Rg7 43.Nd7 Rg8 44.a6 Ra8 45.Ra4 Ra7 46.Nb8 Ne5 47.Ke2 Ra8 48.a7 1–0. pcmvr (2810) – pierred (2765), net–chess.com, 2010.

4.Nf3 Nf6 5.e3 b6 6.cb6 ab6 7.Be2 Bb4 8.Bd2 Bb7 9.c4 Ne4 (9...Be7 10.Nc3+/–) 10.Bb4 Nb4 11.Qb3 Nc6 12.Nbd2 Na5 13.Qb4 d6 14.Ne4 Be4 15.Nd2 Bc6 16.0–0 0–0 17.Rab1 Rb8 18.Rfc1 h6 19.h3 f5 20.d5! ed5 21.Bf3 d4 22.ed4 Qc7 23.d5 Bd7 24.Be2 Qc5 25.Bh5 Qb4 26.Rb4 Rb7 27.Re1 Rfb8 28.Bg6 Rc7 29.Kh2 Kf8 30.a4 Kg8 31.Kg3 Rcb7 32.h4 Rf8 33.h5 Bc8 34.Be8 Kh8 35.Kf3 Kh7 36.Bc6 Nc6 37.dc6 Rc7 38.Rb6 Rc6 39.a5 Bd7 40.Kf4 Ra8 41.Re7 (41.Re7 Ra5 42.Rb7+–) 1–0. acidtest – pierred (2765), net–chess.com, 2010.

4.Nf3 Nf6 5.Bg5 Qa5 6.Qd2 Qd2 7.Nbd2 Nb4 +/–.

3.d4 d5

4.cd6 Bd6 5.e3 Nf6 6.Nf3 0–0 7.Bd3 Nbd7 8.0–0 Nb6 (8...e5!? 9.Nbd2 Qe7+–) 9.c4+– Nbd7 10.Nbd2 Be7 11.Bb2 b6 12.Ne4 (12.e4 Bb7+–) 12...Ne4 13.Be4 Rb8 14.Rc1 Nf6 15.Bb1 Bb7 16.Ne5 Qc7 17.h3 Bd6 18.f4 Be5? (better 18...Rfd8!?+–) 19.fe5+– (19.de5?! Ne4+=) 19...Qc6? (19...Ne4 20.d5 f5 21.ef6 Nf6 22.Bf6 gf6 23.Qg4 Kh8 24.Qe6+– (24.de6 Rg8 25.Qe2 Bg2 26.Qg2 Rg2 27.Kg2 Rg8 28.Kf3 Rg3 29.Kf2 Rh3–+)) 20.Rf2?? (better 20.d5 Nd5 21.cd5 Qd5 22.Qc2+–) 20...Ne4+– 21.Re2 (21.Qd3 Rbc8+–) 21...Ng3 (21...Rfd8+=) 22.Rf2 (22.Rd2 Ne4 23.d5 ed5+–) 22...Ne4 23.Rf3 Ng5 24.Rg3 h6? (24...Ne4 25.Qh5 g6 26.Rg4+–) 25.Qg4 (25.Qh5 Rfd8+–) 25...f6? (better 25...g6+–) 26.ef6 Rf6 (26...Rf7+–) 27.h4 e5 (27...Rf5 28.d5! Qd6 29.Bf5 ef5+–) 28.hg5 Bc8 (28...Rf7 29.d5 Qd6 30.Qe6 Qe6 31.de6+–) 29.Qe4 (better 29.Qh4 hg5 30.Qh7 Kf7 31.Rg5+–) 29...Qe6 (29...Qe4 30.Be4 hg5+–) 30.gf6 Bb7 (30...Qf6 31.Qh7 Kf7 32.Rg7 Qg7 33.Rf1 Bf5 34.Rf5 Ke6 35.Qg7 Rf8 36.d5 Kd6 37.Ba3) 31.Rg7 Kh8 (31...Kf8 32.Qh7 Bd5 33.Rg8 Qg8 34.Qe7) 32.Qh7 1–0. BeepBeepImAJeep (2525) – alekhine12 (1865), lichess.org, 2018.

4.Nf3 a6 (4...Nc6 5.e3+/–) 5.Bb2 (5.Nbd2 Nc6+/–) 5...Nc6 6.c4 Na5 (6...b6!?+/–) 7.cd5 Nc4?? (better is 7...ed5 8.Nbd2 b5+/–) 8.Qa4+– b5 (8...Qd7 9.Qc4 ed5 10.Qb3+–) 9.cb6 (9.cb6 Bd7 10.Qc4 Qb6 11.de6 Qb2 12.ed7 Kd8 13.Ne5+–) 1–0. Fournier,Frederic – guest6353, Active (3/0), 2006.

3.d4 d6

4.cd6 Bd6 5.e3 f6 6.Nf3 Ne7 7.Bd3 0–0 8.0–0 Nbc6 9.c4 e5 10.d5 (better 10.Qb3 Kh8 11.c5+–) 10...Bc7?? (better 10...Nb4+–) 11.dc6+– Nc6 12.Be4 (12.Be4 Be6 13.Ba3+–) 1–0. BeepBeepImAJeep (2665) – JohnReeze (1825), lichess.org, 2017.

4.cd6 Bd6 5.e3 Nf6 6.Nf3 e5? 7.de5+– (worse 7.Ne5 Be5 8.de5 Qd1 9.Kd1 Ng4+–) 7...Bb4 8.Nbd2 (8.Bd2!? Ne4 9.c3 Nd2 10.Qd2 Qd2 11.Kd2 Be7+–) 8...Ne4+– 9.c3 (9.Bb5 Bd7 10.c4 Bb5 11.cb5 Qd3+–) 9...Nc3 (9...Bc3!? 10.Rb1 0–0+=) 10.Qb3 Nc6 11.Bc4 0–0 12.0–0 Qe7? (better 12...b5!? 13.a3 Ba5 14.Bb5 Rb8+=) 13.a3+– Ba5 14.Bb2 Ne5? (better 14...b5 15.Bc3 bc4 16.Qc4 Bc3 17.Qc3 Bb7+–) 15.Bc3 Nc4 16.Qc4 Be6 17.Qd4 Threatening mate... how? (17.Ba5?! Bc4 18.Nc4 Qe6+=) 17...Bc3 18.Qc3 Rac8 19.Qd4 Rfd8 (19...a6 20.Rfd1+–) 20.Qa7 Bd5 21.Rac1 (21.Rfc1 Rc1 22.Rc1 Qd6+–) 21...Bc6 (21...Ra8 22.Qb6+–) 22.Qb6 (22.Nd4 Bd5+–) 22...Qf6 (22...Qa3 23.Rfd1+–) 23.Rfd1 Qg6 24.Qb1 (24.Nb3 Rd1 25.Rd1 h6+–) 24...Qh5 (24...Qb1 25.Rb1 Rd3 26.Nb3 Rd1 27.Rd1 Bf3 28.gf3+–) 25.h3 h6 26.Nd4 Bd7 (26...Rd5 27.N2f3 Ra8 28.Rd3+–) 27.Rc8 (27.Qb7!? Rc1 28.Rc1 Qg5+–) 27...Bc8 28.Rc1 Be6 (28...Qa5 29.Qb4 Qb4 30.ab4+–) 29.Ne6 (better 29.Qb7 Bd5 30.Qe7+–) 29...Rd2 (29...fe6 30.Nf3 Qd5 31.Qg6+–) 30.Nf4 (30.Rc8 Rd8 31.Rd8) 30...Qe5 (30...Qa5 31.Rc8 Rd8 32.Qb7 g6+–) 31.Rc8 (31.Rc8 Rd8 32.Rd8 Qe8 33.Re8) 1–0. BeepBeepImAJeep (2570) – Photophobia (2420), lichess.org, 2016.

4.cd6 Bd6 5.Nf3 b6 6.e3 Bb7 7.Be2 Ne7 8.0–0 0–0 9.Bb2 Nd7 10.c4 Rc8 11.Nbd2 Bb4 12.a3 Bd2 13.Qd2 (13.Nd2 Ng6+/–) 13...Nf5 14.Rfc1 Nf6 15.Ne5 Ne4 16.Qe1 Qg5 17.g3 Nh4?? (17...f6 18.Nd3+/–) 18.Nf3 (better is 18.f4 Qh6 19.gh4+–) 18...Nf3+/– 19.Bf3 Rc7 20.Bg2 Rfc8 21.f3 Nd6 22.c5 bc5 23.dc5 Rc5 24.Rc5 Rc5 25.Bd4 Rc2 26.Rc1 Rc1 27.Qc1 Qa5 28.Qc3 Qc3 29.Bc3 Nc4 30.Bb4 a5 31.Be7 Ne3–/+ 32.Kf2 Nc2 33.f4 Bg2 34.Kg2 f6 35.a4 Ne3 36.Kf3 Nc4 37.Bd8 Kf8 38.Ke4 Ke8 39.Kd4 e5 40.fe5 fe5 41.Kc4 Kd8 42.Kd5 e4 43.Ke4+= Kd7? 44.Kd5+– h6 45.g4 g6 46.h4 Threatening Ke7 46...h5 47.gh5 gh5 48.Kc5 Kc7?? 49.Kb5+– (49.Kb5 Kd6 50.Ka5=) 1–0. Fournier,Frederic (1785) – Revor (1650), Active (5+0), 2012.

3.d4 e5

4.e3 d6 5.cd6 ed4 6.Nf3 (6.Qd4!? Nc6 7.Bb5 Qd6 8.Qd6 Bd6 9.Nf3+–) 6...de3+= 7.Be3 Bd6 8.Bb5 Nc6 9.0–0 Nf6 10.c4 0–0 11.c5 Bc7 12.Nc3 Be6 (12...Ne5 13.Be2=) 13.Bc6 bc6 14.Nd4 Bd5 (14...Ng4 15.h3 (15.Nc6?? Bh2 16.Kh1 Qh4–+; 15.Ne6? Bh2 16.Kh1 Qh4–+) 15...Ne3 16.fe3=+) 15.Nd5 Qd5 16.Nf3 Rfe8 17.Bg5 Ne4 18.Qd5 cd5 19.Be3 Rab8 (19...a6 20.Rfd1 Rad8 21.Rac1=) 20.Rab1 f6 21.a3 a6 22.h3 Kf7 23.Rfd1 Nc3 24.Rb8 Rb8 (worse 24...Bb8 25.Rd3 Nb5 26.Rd5 Na3 27.Nd4+=) 25.Rd3?? (25.Ra1 Rb2=) 25...Nb5 (25...Rb1 26.Bc1 Rc1 27.Rd1 Rd1 28.Ne1 Re1) 26.g3 (26.Rd5 Ke6 27.Rh5 h6+=) 26...Rd8 (26...Ke6 27.a4 Na7 28.Nd4 Kd7 29.Nf5=) 27.a4 Na7 28.Nd4 Be5 29.Rb3 Bd4 30.Rb7 Ke6 (30...Kg6!? 31.Ra7 Be3 32.fe3 Rc8=) 31.Ra7+– (31.Bd4?! Nc6 32.Rb6 Kd7=) 31...Be3 32.fe3 Rc8 33.Rg7 Rc5 34.Rh7 Ra5 35.Kf2 (better 35.Rh4!?+–) 35...Ra4= 36.h4 Ra1 37.h5 a5 38.Ra7 Rh1 39.Ra6 Ke5 40.Ra5 Rh5 41.Kf3 Rf5 42.Ke2 Rg5 43.Kf2 Rf5 (43...Rg8 44.Ra7=+) 44.Ke2= Rg5 45.Kf3 Rf5 46.Kg2 (46.Ke2 Ke6=) 46...Rg5 (46...Ke4 47.Ra3–/+) 47.Ra4 (47.Kf3 f5=) 47...Rf5 (better 47...Rg8=+) 48.Rf4 (48.Ra5 Ke4 49.Ra3 Rh5–/+) 48...Rg5 (better 48...Rf4!? 49.gf4 Ke4–+) 49.Kf3 (49.Ra4 Rg8=+) 49...Rf5 (49...f5 50.Rb4=+) 50.g4= Rf4 51.ef4 Ke6 52.Ke3 Kd6 53.Kd4 Ke6?? (better 53...Kc6=) 54.Kc5+– f5?? (better 54...d4 55.Kd4 Kd6+–) 55.g5 d4 56.Kd4 Kf7 57.Kd5 Kg7 58.Ke5 Kg6 59.Ke6 Kg7 60.Kf5 Kh7 61.g6 (61.Kf6 Kg8 62.g6 Kf8 63.g7 Ke8 64.Ke6 Kd8 65.Kd6 Kc8 66.g8Q Kb7 67.Qb3 Kc8 68.f5 Kd8 69.Qg8) 61...Kh8 62.Kg5 (62.Kf6 Kg8 63.g7 Kh7 64.Kf7 Kh6 65.g8Q Kh5 66.Qg5) 62...Kg8 63.Kf6 (63.Kf6 Kf8 64.g7 Ke8 65.Ke6 Kd8 66.Kd6 Kc8 67.g8Q Kb7 68.Qb3 Kc8 69.f5 Kd8 70.Qg8) 1–0. BeepBeepImAJeep (2685) – Rekcul (2400), lichess.org, 2015.

4.e3 Nf6 5.Nf3 (5.de5 Ne4+–) 5...ed4 (5...e4 6.Nfd2 d6 7.cd6 Bd6 8.c4+=) 6.ed4+– (worse 6.Nd4 Bc5 7.Be2 0–0=) 6...d5 7.cd6 Bd6 8.Bd3 0–0 9.0–0 Nc6 10.c3 Bg4 11.Bg5 h6 12.Bh4 g5 13.Bg3 Bg3 14.fg3 (14.hg3 Re8 15.Nbd2+=) 14...Kg7 (better 14...Nd4!? 15.cd4 Bf3 16.Qf3 Qd4 17.Kh1 Qa1=) 15.Nbd2+– Nd5 16.Qb3 White gets the initiative 16...Ne3 (16...Na5 17.Qb2+–) 17.Rfe1+– (17.Qb7?! Nf1 18.Rf1 Qb6+–) 17...Re8 18.Ne4 f5? (18...Na5 19.Qb2 Nf5 20.Qf2+–) 19.Re3 (better 19.Qb7!? Ne7 20.Re3 Rb8 21.Qa7 Ra8 22.Qa8 Qa8+–) 19...fe4 20.Re4 Re4 21.Be4 Qd7 (21...Qc7 22.Bc6 bc6 23.Ne5+–) 22.Re1 (better 22.Bc6 Qc6 23.Ne5 Be6+–) 22...Re8 23.Kf2 Bf3 24.gf3 (24.Kf3?! Na5 25.Qc2 Qf7 26.Ke2 b6+–) 24...Ne7? (24...Re7+–) 25.Qb7 (25.Bb7?! Rb8 26.Rb1 Nd5+–) 25...Qd6 (25...Qb7 26.Bb7 Kf7 27.c4+–) 26.Bd3 (26.Bc6! Qc6 27.Re7 Re7 28.Qc6 Rf7+–) 26...Kh8 (26...Kf8+–) 27.Qe4 Kg8 28.Qh7 Kf8 29.Bc4 Qf6 (29...Qg6 30.Re7! Qh7 31.Rh7+–) 30.Re6 (30.Re7 Qf3 31.Kf3 g4 32.Kf4 Re7 33.Qg8) 30...Qf7 (30...Qg7 31.Re7! Qh7 32.Rh7+–) 31.Re7! Re7 Theme: Blockade (31...Qe7 32.Qh8 A beautiful mate combination) 32.Qh8 A classical mating theme (32.Qh8 Qg8 33.Qg8) 1–0. BeepBeepImAJeep (2645) – tequieromucho (2015), lichess.org, 2017.

4.e3 Nf6 5.Nf3 (better 5.de5!? Ne4 6.Qd5 Nc5 7.Bc4+–) 5...e4+= 6.Nfd2 Nc6 (6...d6 7.Nc3 d5 8.Bb5 Bd7 9.0–0+=) 7.Bb5 (7.Nc3!?+–) 7...d6+= 8.cd6 Bd6 The passed pawn on d4 will quickly become a dangerous weapon 9.h3 (9.c4 a6 10.Bc6 bc6+–) 9...Qe7 10.c4 0–0 11.Bc6 bc6 12.c5 Bc7 13.Nc3 Nd5 (13...Ba5 14.Bb2+=) 14.Nd5 (better 14.Nde4!? Rb8 15.Nd5 cd5 16.Nc3+–) 14...cd5+= 15.0–0 (15.Qh5 Qe6+=) 15...f5 (15...Qg5 16.f4 Qg6 17.Kh2=) 16.f4 ef3 17.Qf3 f4 (17...Qe6!?+=) 18.Nb3 Bf5 (18...Ba6 19.Qd5 Kh8 A) 20.ef4 Bf1 21.Kf1 Rae8–/+ (21...Bf4?! 22.Bf4 Rf4 23.Kg1=); B) 20.Rf3+=) 19.ef4 (19.Qd5 Kh8 20.Qf3 Be4+–) 19...Be4+– 20.Qg3 Rf6 21.Be3?? (better 21.Rf2+–) 21...Rg6–+ 22.Qg6 (22.Qf2 Rg2 23.Qg2 Bg2 24.Kg2 Qe3–+) 22...hg6 (better 22...Bg6 23.Rfe1–+) 23.Nd2? (23.Rae1 Re8–+) 23...Re8 (better 23...Bg2 24.Kg2 Qe3 25.Nb3 Qe4 26.Rf3–+) 24.Rae1 Bd3 25.Rf2 Qf6 26.Nf3 (26.g3 Ba5 27.Kg2 Qa6–+) 26...Be4 (better 26...Ba5 27.Bd2 Re1 28.Ne1 Bd2 29.Rd2 Qd4 30.Kh1 Qe3 31.Rd3 Qe1 32.Kh2 Qe4–+) 27.Ne5 Be5 (better 27...Qh4–+) 28.fe5=+ Qe6 29.Ref1 Rb8 30.Kh2 Kh7 (30...Qa6 31.Rd1–/+) 31.Rf4 (31.g4 Qa6 32.Re1 Rb1 33.Rb1 Bb1–+) 31...Rb2–/+ Threatening mate... how? 32.Rg4 (better 32.R4f2 Rf2 33.Rf2–/+) 32...Rg2?? (better 32...Kg8–+) 33.Rg2+– Bg2 34.Kg2 g5 35.Bg5?? (better 35.Kg3+–) 35...Qg6= 36.h4 Qe4 37.Kf2 (37.Kg3 Qd4 38.Re1 Qc5 39.e6 Qd6 40.Kf3 Qf8 41.Ke2+–) 37...Qd4–/+ 38.Kf3 Qe5 (38...Qc5!? 39.Re1 Qf8 40.Kg2 Qb4–/+) 39.Rc1= Qe4 40.Kf2 (40.Kg3 Qb4 41.c6 Qa3 42.Kg4 Qa2=) 40...Qf5=+ 41.Kg3 Qe5 42.Kf3 d4 (42...Kg6!?=) 43.c6+= Qd5 44.Kg3 Qd6 (44...Qa2?? 45.c7 Qb3 46.Kf2 Qb2 47.Kg1+–) 45.Bf4 Qg6 46.Kf3 Qh5 47.Kg3 d3?? (better 47...Qg6 48.Kf3 Qd3 49.Kf2 Qf5=) 48.c7+– d2? (48...Qg6 49.Bg5 Qd6 50.Kg2 Qd5 51.Kg1+–) 49.Bd2 (better 49.c8Q Qg6 50.Kf2 dc1R 51.Qc1+– (51.Bc1?! Qf7 52.Ke3 Qa2+–)) 49...Qe5?? (49...Qg6 50.Bg5 Qd3 51.Kf4 Qd4 52.Kf3 Qd5 53.Kf2 Qf5 54.Ke3 Qe6 55.Kd3 Qd7 56.Ke2 Qg4 57.Kf1 Qh3 58.Ke1 Qe6 59.Kd1 Qg4 60.Kc2 Qc4 61.Kb2 Qb4 62.Ka1 Qd4 63.Kb1 Qb6 64.Ka1 Qd4 65.Kb1 Qb6 66.Ka1 Qd4=) 50.Bf4 Qe2 51.c8Q Qd3 52.Kg4 Qe2 53.Kh3 Qd3 54.Bg3 Qf5 (54...Qd5+–) 55.Qf5 g6 56.Rc7 Kh6 57.Qg5 1–0. BeepBeepImAJeep (2620) – PG2019 (2345), lichess.org, 2019.

3.d4 Nf6

4.Ba3 d6 5.cd6 Bd6 6.Bd6 Qd6 7.Nf3 0–0 8.e3 b6 9.Bd3 Bb7 10.Nbd2 Nbd7 11.0–0 Rfc8 12.Nc4 Qc6 13.Rb1 Rc7 14.Qe2 Rac8 15.Rfd1 Qd5 16.Rb4 a5 (16...Ba6 17.Nfd2+/–) 17.Rb6 (17.Nb6?! Qd6 18.Nd7 ab4 19.Nf6 gf6=) 17...Nb6 18.Nb6 Qa2 19.Nc8 Rc8 20.e4 a4 21.e5 Ne8 22.Qe3 a3 23.c4 Bf3 24.gf3 Rb8 25.Qe4 g6 26.d5 ed5 27.cd5 Rd8 28.Bc4 Qb2 29.d6 a2? (better is 29...Ng7+–) 30.Qd5 Nd6 31.Ba2 (31...Rd7 32.ed6+–) 1–0. b4_player (2170) – sailingpete1 (1950), GameColony.com, 2003.

4.e3 b6 5.cb6 ab6 6.Nf3 Bb7 7.Bd3 Be7 8.0–0 0–0 9.Nbd2 d5 10.c4 Nbd7 11.cd5 ed5 12.a4 Rc8 (12...Ba6 13.Ba6 Ra6 14.Ba3+–) 13.Bb5 Ne4 14.Ne4 (14.Qb3 Ndf6+–) 14...de4+= 15.Nd2 Nf6 16.Ba3 Ba3 17.Ra3 Qd6 18.Ra2 h5 (18...Bd5 19.Rb2+=) 19.h3 Rcd8 20.Rc2 Nd5? (20...Bd5 21.Nc4 Qe6 22.Qb1+–) 21.Nc4 (21.Qh5 Nf6 22.Qe5 Bd5+–) 21...Qb8? (21...Qg6 22.Qb1+–) 22.Ne5 (22.Qh5 Qc7+–) 22...Nb4 (22...Nf6 23.Qb1+–) 23.Rc4 (23.Rb2 Qd6+–) 23...Nd5 (23...Qd6 24.Qh5 Bd5 25.Rc3+–) 24.Qh5 Qd6 25.Bc6?? (better 25.Rfc1+–) 25...Ba6+– 26.Bb5 (better 26.Rfc1 Bc4 27.Rc4+–) 26...Bb7+– 27.Rfc1 Qf6 (27...Nf6 28.Qf5+–) 28.Nc6 (better 28.Nd7 Rd7 29.Bd7+–) 28...Rc8 (28...Rd6+–) 29.Qd5 Qg6 (29...Rce8+–) 30.Ne7 (30.Ne7 Kh7 31.Qb7 Rc4 32.Bc4+–) 1–0. BeepBeepImAJeep (2505) – ChessKnightOfEngland (2350), lichess.org, 2016.

4.e3 b6 5.cb6 Qb6 6.Nf3 Be7 7.Bd3 0–0 8.0–0 Bb7 9.Nbd2 d6 10.Rb1 Qc7 11.Ba3 Nbd7 12.Nc4 (12.e4 Rab8+–) 12...Rfc8 13.Bd6 (13.Nfd2 Rab8+–) 13...Bd6 (better 13...Bf3!? 14.Qf3 Bd6+=) 14.Rb7!+– Bh2 (14...Qb7 Theme: Deflection from d6 15.Nd6 A double attack) 15.Nh2 Qb7 16.Nd6 Qb2 17.Nc8 Rc8 18.a4 Nb6 19.a5 Nc4 20.Qa1 Qb4 21.a6 h5? (better 21...Rb8+–) 22.Rb1+– Qd6 23.Nf3 (23.Rb7 Na3+–) 23...Ng4 (better 23...Nb6+–) 24.Qa4?? (24.Rb7 h4+–) 24...Nb6? (better 24...Nd2! 25.Nd2 Qh2 26.Kf1 Qh4+=) 25.Qb4 Qc7 (25...Qb4 26.Rb4 Rc3 27.Nd2+–) 26.Qb5 g6 27.Qg5 (27.c4 Rb8+–) 27...Kg7 (27...Qc6 28.e4+–) 28.Rc1 (28.c4!? Qd7+–) 28...Qc3 29.Qb5 Rc7 (29...Nc4 30.Qb3 Nb2 31.Qc3 Rc3 32.Be2+–) 30.Rb1+– Nd5 31.Qb2 Qc6 32.c4 (better 32.Qb8+–) 32...Nb6?? (32...Qa6 33.Qb3 Ndf6 34.e4+–) 33.Be2 (better 33.d5 Nf6 34.dc6 Rc6 35.Qd4+–) 33...Nc4+– 34.d5 Nb2 35.dc6 Rc6? (better 35...Na4 36.Rc1 e5+–) 36.Rb2+– Rc7 (36...Rc1 37.Bf1 Kf6 38.Rb7+–) 37.Rb1 (37.Rb7 Rc1 38.Bf1 Rc2+–) 37...Nf6 (37...Rc2 38.Nd4 Ra2 39.Kf1+–) 38.Nd4 (38.Ne5 Rc5 39.f4 Rc7+–) 38...Nd5 (38...e5 39.Nb5 Re7+–) 39.Bf3 Nb6 (39...Rc5 40.Rb7 Kf6 41.Nb3+–) 40.Nb5 Rd7 41.Na7! e5 (41...Ra7 42.Rb6) 42.Rb6 (42.Nc6!? Nc8 43.Rb8 Nd6+–) 42...Ra7 43.Bb7 (43.Be2 Ra8+–) 43...Rb7 (43...g5+–) 44.ab7 (44.ab7 f6 45.b8Q h4 46.Qd6 Kh7 47.Qf8 g5 48.Qf7 Kh6 49.Rf6) 1–0. BeepBeepImAJeep (2640) – blepdur (2295), lichess.org, 2016.

4.e3 Nc6 5.Bd3 d6 6.cd6 Bd6 7.Bd2 Bc7 (7...e5 8.de5 Ne5 9.Nf3=) 8.Ne2 (8.f4 0–0+–) 8...e5+= 9.de5 Ne5 10.Bb5 Bd7 11.Bd7 Ned7 (11...Qd7 12.Bc3=) 12.0–0 Nc5 (12...0–0 13.Bc3+=) 13.Nbc3 (13.Bb4 Qe7 14.Nd2 0–0+=) 13...Qd6 14.Ng3 (14.f4 0–0+=) 14...0–0 (14...0–0–0 15.Be1=) 15.Nce2 (15.Nb5 Qc6 16.Nd4 Qd5+=) 15...Nfe4 (15...Nce4 16.Bc3=) 16.Bb4+= Ng3 (16...Qh6 17.Bc5 Nc5 18.Qd5+=) 17.Ng3+– Qe5 18.Qd4 Ne6 19.Qe5 Be5 20.Bf8 Ba1 21.Ra1 Rf8 22.Nf5 Rc8?? (22...Rd8 23.Kf1+=) 23.Rc1 (better 23.Ne7 Kf8 24.Nc8+–) 23...Kf8 24.c4 (24.Nd6 Rc6 25.Nb7 Rb6+=) 24...Nc5 (24...Rd8 25.Kf1+=) 25.Nd4 (25.Rd1 b6+–) 25...Nd3 (25...b6 26.Rc2+=) 26.Rc3 Nb2 Attacking the isolated pawn on c4 (26...Nc5 27.f3+–) 27.c5 (27.Rb3 Nc4 28.Rb7+–) 27...b6? (27...Na4 28.Ra3 Rc5 29.h3+=) 28.Rb3?? (better 28.c6+–) 28...bc5 29.Nb5 Rd8 30.h3 Nd3 (30...Rd1!? 31.Kh2 Rd2=) 31.Na7+= c4 32.Rc3 (32.Rb7 Ne5 33.f4 Rd1 34.Kh2 Nd3+–) 32...Nb2 (32...Ra8!? 33.Nc6 Ra2 34.Rc4 Ra1 (34...Nf2? 35.Rf4+–; 34...Rf2?? 35.Rd4 g6 36.Rd3+–) 35.Kh2 Nf2=) 33.Nc6 (33.Rc2 Ra8+–) 33...Rc8 (33...Rd2 34.a3+=) 34.Nd4+– g6 35.g4 Ke7 36.Kg2 Kd6 37.Kf3 (37.g5 Kd5+–) 37...Kd5 38.a3 Na4 39.Rc2 c3 40.Nb5 (better 40.g5+=) 40...Kc4?? (better 40...Rc5 41.Nd4 Rc8=) 41.Nd6?? (better 41.Rc3! Nc3 42.Nd6 Kc5 43.Nc8+–) 41...Kb3–+ 42.Nc8?? (better 42.Rc1 Rc6 43.Nb5–+) 42...Kc2 43.Ke4 (43.Nd6 Kd1 44.g5 c2 45.Nf7 c1Q–+) 43...Kd2 44.Kd4 (44.Nd6 c2 45.Ke5 c1Q 46.Nf7 Ke1–+) 44...c2 45.Kc4 (45.Nd6 c1Q 46.Ne4 Ke2–+) 45...c1Q 46.Kb4 Nc3 47.Nd6 Na2 (47...Kd3 48.Nc4 Nd5 49.Kb5 Qc4 50.Ka5 Qc5 51.Ka4 Nc3 52.Kb3 Qb6) 48.Ka4 (48.Kb5 Ke2 49.Nc4 Nc3 50.Kc5 Ne4 51.Kd5 Qc2–+) 48…Qc6 (48...Qc6 49.Ka5 Qd6 50.Kb5 Nc3 51.Ka5 Qc6 52.a4 Nd5 53.g5 Qb6) 0–1. Abdullaevich (1870) – astro_bball (1735), lichess.org, 2020.

4.e3 d6 5.cd6 Bd6 6.Nf3 0–0 7.Be2 h5 8.0–0+– Ng4 (8...Nc6 9.Ba3+–) 9.h3 (9.e4 f6+–) 9...Nh6 (9...Nf6 10.Ba3+–) 10.Ba3 (10.e4 f6+–) 10...Ba3 11.Na3 h4 12.Nc4 Nc6 (12...b6 13.Rb1+–) 13.Nce5 Ne5 14.Ne5 b6 (14...Qg5 15.c4+–) 15.Bf3 Rb8 (15...Ba6 16.c4 Rb8 17.Nc6+–) 16.Nc6 Qd6 17.Nb8 Qb8 18.c4 Rd8 19.Qb3 Qd6 (19...Bb7 20.Bb7 Qb7 21.c5+–) 20.a4 Ba6 (20...e5 21.Rfd1 ed4 22.Rd4+–) 21.Rfc1 White prepares the advance c5 (21.a5 b5 22.c5 Qc7+–) 21...Nf5 (21...Rb8 22.Rab1+–) 22.c5 (22.a5!? Bc8+–) 22...bc5 23.Rc5 Kf8 (23...Rb8 24.Qc3 Qd8+–) 24.Rc6 Rb8 (24...Qe7 25.Ra6 Nd6 26.Qc2+–) 25.Rd6 Rb3 26.Ra6 1–0. Abdullaevich (1880) – CosmicNewt (1920), lichess.org, 2020.

4.e3 Be7 5.Nf3 0–0 6.Be2 Nc6 7.0–0 d5 8.cd6 Bd6 9.c4 b6 10.Nc3 Bb7 11.Bb2 Rc8 12.a4 Na5 13.Nb5 Be7? (13...Bf3 14.gf3 Bb8 15.Rc1+=) 14.Rc1 (better 14.Na7!? Rc7 15.Nb5 Bf3 16.gf3+–) 14...a6+= 15.Nc3 (better 15.Na3!?+=) 15...Nc4=+ 16.Bc4 Rc4 17.Ne5 Rc8 18.Qb3 Nd5 19.Nd5 Bd5 (worse 19...Qd5 20.Qd5 Bd5 21.Nd7+–; worse 19...ed5 20.Rc8 Qc8 21.Qb6+–) 20.Qd3 Bb7 (20...f6 21.Rc8 Qc8 22.e4=) 21.f3 Qd5 22.e4 (22.Nc4 Rc6 23.e4=) 22...Qa5 (22...Qa2 23.Bc3 Qa4 24.Ra1–/+) 23.Rc4 (better 23.Nc4!? Qg5 24.Nb6 Rc1 25.Bc1+–) 23...Rc4= 24.Qc4 Qd2 (24...Rc8 25.Qb3 Qd2 26.Rf2=+ (26.Qb6?? Rc2 27.Qd8 Bd8 28.Rf2 Qf2 29.Kh1 Qg2)) 25.Qc3 (25.Bc1!? Qb4 26.Qb4 Bb4 27.Be3+=) 25...Qc3=+ 26.Bc3 Rc8 27.Ba1 f6 28.Nd7 Rc2 (better 28...b5!?=+) 29.Nb6+= e5 (better 29...f5 30.ef5 ef5+=) 30.Nd7 (better 30.Rb1!?+=) 30...ed4=+ 31.Bd4 Rd2 32.Nc5 Rd4 33.Nb7 Rd2?? (better 33...Rb4 34.Na5 Ra4=+) 34.Rc1 Rb2 35.Rc7 Bb4 36.h4 Bd2 (36...Ra2!?+=) 37.Rc8 (37.Nd6 Be3 38.Kf1 g6+–) 37...Kf7 38.Nd6 Kg6 39.Nc4 (39.Nc4 Rb1 40.Kh2+–) 1–0. BeepBeepImAJeep (2500) – Akilios (1655), lichess.org, 2018.

3.d4 g6

4.Bb2 Bg7 5.e3 Ne7 6.Bd3 0–0 7.Nf3 d5 8.cd6! Qd6 9.c4 Nbc6 10.–0 Re8 11.c5 Qd8 12.Nbd2 f5 (12...e5 13.Ne4 ed4 14.Nd6 de3 15.Bg7 Kg7 16.Ne8 Qe8 17.fe3+–) 13.Qc2 (13.Nc4 b6+–) 13...Nd5 (13...Nb4 14.Qb3 Nd3 15.Qd3+/–) 14.a3+– a6 (14...Qc7 15.Nc4+–) 15.Rab1 Bd7 16.Rfe1 Rb8 17.Nc4 b5 18.cb6! Nb6 (18...Rf8 19.Qe2+–) 19.Nb6 (19.Nd6!? Rf8 20.Ba6 Na5+–) 19...Rb6 20.Bc3 Rb1 21.Rb1 Ne7 (21...Bf8 22.Qc1+–) 22.Ba6 Qa8 23.Bd3 Nd5 (23...Bc6 24.Ng5 Bd5 25.Bb5+–) 24.Bb2 Rc8 25.Qd1 (25.Qd2 Bc6+–) 25...Ba4 (25...Nc3 26.Bc3 Rc3 27.Ne5 Be5 28.de5 Qa3 29.Bf1+–) 26.Qe2 (26.Qd2 Bb3+–) 26...Nc3 27.Bc3 Rc3 28.Qb2?? (28.Ra1 Qd5+–) 28...Rb3?? (better is 28...Rd3 29.Qb4 Bc2–/+) 29.Qc2 Ra3 30.Qd1?? (better is 30.Qc4 Qe8 31.Ng5+–) 30...Bd1–+ 31.Rd1 Ra1 (31...Ra1 32.Rf1 f4 33.ef4 Qa4–+) 0–1. Fournier,Frederic (2090) – NN, jeu.europe–echecs.com (3+0), 2013.

4.e3 Bg7 5.Nf3 Nf6 6.Bd3 0–0 7.0–0 Nc6 8.a3 a5 (8...b6 9.cb6 ab6 10.e4+–) 9.c4+– a4 (9...d6 10.cd6 Qd6+–) 10.Nc3 d6 11.Bd2?? (better 11.cd6 Qd6 12.Na4+–) 11...dc5= 12.Be2 (12.Ne2!?=) 12...cd4=+ 13.ed4 Nd4 14.Nd4 Qd4 15.Qc2 Bd7 16.Rad1 Qe5 17.Rfe1 Qc7 18.Bg5 Ne8 (better 18...Bc6!?–/+) 19.Be7+= Nd6?? Attacks the isolani on c4 (better 19...Bc6 20.Bb4 Be5 21.Bf8 Bh2 22.Kf1 Kf8=) 20.Bd6+– (20.Rd6?! Rfe8 21.Rd7 Qd7+–) 20...Qc6 (20...Qa5 21.Bb4 Qc7 22.Bf8 Bf8 23.Qd3+–) 21.Bf8 Bf8 22.Nb5 Ra5 (22...Qc8 23.Qd3 Bb5 24.cb5+–) 23.Rc1 (better 23.Qd2 Ra8 24.Qd7+–) 23...b6 24.Bf3 (better 24.Red1!? e5+–) 24...Qc5 25.Be2 Bc8?? (25...Qc6 26.Red1 e5+–) 26.Red1 Bb7 27.Rd8 (better 27.Qd2+–) 27...Qc6 (27...Qg5 28.Rf8! Kf8+–) 28.Bf3 Qf3 (28...Qc5 29.Bb7 Qe5 30.Qd2+–) 29.gf3 Bf3 30.Qd3 (better 30.Qc3 Ra8 31.Rcd1 Bd1 32.Ra8 e5+–) 30...Bc6 31.Qd6 Bb7 32.Qf8 1–0. e4_e5_f4 (1705) – SlurmsMcKenzie2 (1620), lichess.org, 2020.

3.Nf3 Bc5

4.Ne5?? Nf6?? (better 4...Bd4 5.Nf7 Kf7 6.Nc3–+) 5.c4?? (5.d4 Be7=+) 5...Nc6 (better 5...Bd4 6.Nc3 Be5–+) 6.Nd3–/+ d6 7.f4? (7.Nc5!? dc5 8.Nc3=+) 7...0–0 (better 7...Ne4!? 8.g3 Bd4–+) 8.Nc3–/+ a6 (8...Bd4 9.Bb2–/+) 9.a4 (9.Nc5 dc5 10.Ba3 b6=+) 9...Bd7 (better 9...e5 10.e3 Be6–/+) 10.Nb2? (better 10.e3!?=+) 10...Rb8 (better 10...e5 11.Nd3 ef4 12.Nf4 Bd4–+) 11.d3?? (11.Nd3 e5 12.e3–/+) 11...e5 (11...Qb6 12.e3 Be3 13.Be2–+) 12.h4 (12.fe5 de5 13.e3 Ng4–+) 12...Bg4 (12...Qb6 13.fe5 de5 14.e3 Be3 15.Be3 Qe3 16.Qe2–+) 13.g3 (13.fe5 de5 14.a5 e4–+) 13...Nh5 (better 13...ef4 14.gf4 Re8–+) 14.e4 (14.Ne4–+) 14...Bd1 15.Kd1 Ng3 16.Bg2 Nh1 17.Bh1 ef4 18.Bf4 Nd4 (18...Qh4 19.Kc2 Qf4 20.Rc1 Qh2 21.Kb1–+) 19.Be3 f5 (better 19...Qh4 20.Bf3 Nf3 21.Bc5 dc5–+) 20.Ke1 Nf3! 21.Kf1 (21.Bf3 Be3 Discovered attack) 21...fe4 22.de4 Be3 23.Ke2 Bd4 (23...Qh4 24.Kd3 Qf2 25.Ne2 Ne5 26.Kc3 Qe2 27.Kb3 Rf2 28.Rb1 Qc2 29.Ka3 Bc5 30.Ka2 Qa4) 24.Bf3 Qh4 25.Kd3 Rf3 26.Ke2 (26.Kc2 Rc3 27.Kd1 Qh1 28.Ke2 Qe4 29.Kd2 Re8 30.Nd3 Qd3) 26...Bc3 27.Kf3 Rf8 28.Ke3 Qg3 29.Ke2 Rf2 (29...Qf3) 30.Kd1 Qg1 0–1. megan12 – Darkseid (1695), ChessWorld.net, 2012.

4.g3 (4.d4 Be7+=) 4...Nc6 5.Bg2 (5.d4 Be7=) 5...d5 6.0–0 Nf6 7.c3 0–0 8.d4 Be7 9.Nbd2 Bd7 10.a3 (10.c4 Rc8=) 10...Qb6 (10...Na5 11.Qc2+=) 11.Qc2 Rfc8 12.Rb1 Nd4 13.Nd4 Qd4 14.cd4 (14.Qh7 Kh7 15.cd4 b6+=) 14...Rc2–/+ 15.Rb7 Bd8 (better is 15...Ba3 16.Ba3 Rd2–/+) 16.e3? (16.Rb2 Rac8 17.Rc2 Rc2 18.Rd1–/+) 16...Bb6–+ 17.Nb3 (17.e4 Bc6 18.Rb6 ab6 19.e5–+) 17...Bc6 18.Na1 Ra2 19.Rb6 ab6 20.Nb3 Rc8 21.Nd2 Bb5 22.Re1 Rac2 23.Nb3 R8c3 24.Nd2 Rc1 25.Rc1 Rc1 26.Bf1 Ne4 27.Ne4 de4 28.Kg2 Bf1 (28...Bf1 29.Kg1 Bh3#) 0–1. carlopm (1910) – pierred (2765), net–chess.com, 2010.

2.bc5 Nf6

3.Ba3 e6 4.d4 Nc6 5.e3 Be7 6.Nf3 0–0 7.c4 b6 (better is 7...Qc7!?+=) 8.d5+– ed5 9.cd5 Na5? (better is 9...Nd5 10.Qd5 Bf6+/–) 10.d6+– bc5 11.Bc5 (11.de7?! Qe7 12.Nc3 Bb7+–) 11...Bd6 12.Bd6 Re8 13.Nbd2 Nc6 14.Bc4 Qa5 (14...Na5 15.0–0+–) 15.Qb3 Kh8 (15...Nd8 16.Qb5 Qb5 17.Bb5+–) 16.Bf7 Rd8 17.0–0 Ba6 18.Rfc1 Rab8 (18...Be2 19.Rab1+–) 19.Bb8 Rb8 20.Nc4 Bc4 21.Qc4 h6 22.Rab1 Rf8 23.Nh4 Qg5 (23...Ne7+–) 24.Ng6 Kh7 25.Nf8 1–0. first – migottaichibolz7, Live Game Caissa's Web, 2004.

3.Bb2 Qa5 4.g3 Qc5 5.Bg2 Ng4 (5...d5 6.Bf6 ef6 7.e3=) 6.Nh3 Qb6 7.Qc1 Nc6 8.d3 (8.Nc3 e6=) 8...Qb4 9.Nd2 Nd4?? (better 9...e5=) 10.c3+– Qb6 (10...Ne2 11.cb4 Nc1 12.Rc1+–) 11.cd4 e6 12.0–0 d5 13.Rb1 Be7 14.Ba3 Qd8 (14...Qd4 15.Be7 Ke7 16.Qa3 Kd8 17.Rfc1+–) 15.Be7 Qe7 16.e4 0–0 (16...de4 17.Nc4+–) 17.ed5 ed5 18.Nf4 Bf5 (18...Nf6 19.Nd5 (19.Bd5?! g5+–) 19...Nd5 20.Bd5+–) 19.Bd5 (19.Nd5 Qd8 20.Rb7 Bd3+–) 19...Rad8 (19...g5 20.Nh3 (worse 20.Bb7 gf4 21.Ba8 Ra8+–) 20...Bd3 21.Re1+–) 20.Rb7 Qa3 (20...Rd7 21.Rd7 Qd7+–) 21.Qa3 1–0. JUANKARODA (1805) – shpic (1765), lichess.org, 2020.

3.Bb2 Na6 4.d4 d6 5.cd6 Qd6 6.e3 g6 (6...Qb6 7.Bc3+–) 7.a4 Bg7 8.Nf3 0–0 9.Ba3 White gets strong initiative 9...Qd8 10.Ba6 ba6 11.0–0 Bg4 12.h3 Bf5 13.c4 Qd7 14.Ne5 Qc8 15.Be7 Re8 16.Bf6 Bf6 17.Nd2 (17.Ng4 Bg4 18.Qg4 Qc4+–) 17...Re5 (17...Be5 18.de5 Re5 19.Qf3+–) 18.de5 Be5 19.Rc1 Rb8 20.Nf3 (better 20.Qe2 Rb2+–) 20...Bc7? (better 20...Bb2 21.Qd6 Rb6+–) 21.Qd5 Bh3 (21...Be6 22.Qe4 Rb4+–) 22.gh3 Qh3 23.Ne5 Rf8 (23...Be5 24.Qe5 Rd8 25.Qg5+–) 24.f4 (better 24.Qd7 Qd7 25.Nd7 Rd8+–) 24...Qg3 (24...Be5 25.fe5 (25.Qe5?! Qg3 26.Kh1 Qh3 27.Kg1 Qg3 28.Kh1 Qh3 29.Kg1=) 25...Qg3 26.Qg2 Qe3 27.Kh1 Qe5 28.Qd5+–) 25.Qg2 Qe3 26.Kh1 f6 (26...Be5 27.Rce1 Qc3 28.fe5 Qc4 29.Re4+–) 27.Nd7 (better 27.Ng6!? Qe8 28.Nf8 Kf8+–) 27...Rd8 (27...Rf7 28.Rce1 Qa3 29.Rd1+–) 28.Rfe1 (better 28.Nf6 Kf7 29.Nd5+–) 28...Qf4 29.Rcd1?? (better 29.Qh3+–) 29...Qh4? (better 29...Rd7 30.Re8 Kf7 31.Rd7 Ke8 32.Rh7 Qc1 33.Qg1 Qc2+=) 30.Kg1+– (30.Kg1 f5 31.Qd5 Kh8 32.Re2+–) 1–0. RichardSommer (1975) – Mr_gamma (1935), lichess.org, 2020.

3.Bb2 Qc7 4.e3 (4.d4 e6+=) 4...Qc5 5.Nf3 Qb6 6.Qc1 (6.Bd4 Qd8+=) 6...d6 7.Be2 (7.Bf6 gf6 8.Nc3 Rg8+=) 7...Nc6 8.0–0 e6 (8...e5 9.c4=) 9.d4 Be7 10.c4 Qc7 (10...0–0 11.Nc3+=) 11.Nbd2 b6 12.Qc3 Bb7 13.Rac1 0–0 14.Bd3 (14.e4 Rfc8+=) 14...Qd7 (14...Rac8 15.Rfd1=) 15.Ne4 (15.d5 Nd8+=) 15...Ne4= 16.Be4 d5 17.cd5 ed5 18.Bd3 Rac8 19.Qc2 (better is 19.Qd2=) 19...Na5?? (19...Nd4!? 20.Bh7 Kh8 21.Nd4 Rc2 22.Bc2 Ba6+=) 20.Qb1 (20.Bh7 Kh8 21.Qf5 Qf5 22.Bf5 Rc1 23.Rc1 Nc4+/–) 20...Rc1 21.Rc1 Bf6? 22.Bh7+– Kh8 23.Bf5 Qd6 24.Qd3 g6? 25.Bg4 Nc4+/– 26.Ba1 b5 27.Ne1 a5 28.Bf3 a4 29.Nc2 Rc8 30.Qf1 b4+= 31.g3 b3= 32.ab3 ab3 33.Ne1 b2?? 34.Bb2!+– Nb2 35.Qh3 Kg7 36.Rc8 Bc8 37.Qc8 Qe6 38.Qe6 fe6 39.Nc2 Nc4 40.Nb4 Nd2 41.Bg2 g5 42.h3 Kg6 43.Na6 Kf5 44.g4 Kg6 45.Nc7 Kf7 46.Bf1 Nb3 47.Ba6 Na5? 48.Bc8 e5 49.de5 Be5 50.Nd5 Nc6 51.Nc3 Bc3+= 52.Bf5 Ne5 53.Bc2 Bd2 54.Bd1 Be3? 55.Be2 1–0. Fournier,Frederic – ildemonio, ICC, 2005.

3.Bb2 d6 4.cd6 ed6 5.Nf3 Be7 6.e3 0–0 7.Bd3 g6 (7...Nc6 8.Nc3+–) 8.h4 (8.Nc3 Be6+–) 8...Nc6 9.h5 (9.Nc3 Re8+–) 9...Bg4 (9...Nh5!? 10.Nc3 Be6+=) 10.hg6+– fg6 11.Bc4 d5 12.Bb3 Ne5?? (better 12...Na5+–) 13.Be5+– Qd7 (13...Rc8 14.Nc3+–) 14.Nc3 Qe6 (14...Rad8+–) 15.Bf6 Bf6 (15...Bf3 16.gf3 Qf6 17.Nd5+–) 16.Bd5 Qd5 17.Nd5 Kg7 18.Rh7! (18.Rh7 Kh7 19.Nf6 Rf6 20.Ng5 Kg8 21.Qg4+–) 1–0. FeegLood (2345) – BulletWillian (2230), Time forfeit, 2016.

3.d4 Nc6 4.Bb2 Nd5 5.e4 Nf6 6.e5 Nd5 7.Bc4 e6 8.Nc3 Nf4 9.g3 Ng6 10.h4 h5 11.Nb5 a6 12.Nd6 Bd6 13.cd6 b5 14.Be2 Bb7 15.Rh3 f6 (Better is 15...Na5+/–) 16.Bh5+– Qa5 17.c3 Kf7 18.ef6 Kf6 (18...gf6 19.Bf3 Rag8+–) 19.Qf3 Nf4 1–0. MT – guest1363, ICC, 2004.

3.d4+= d5 4.cd6 e6 5.g3 Bd6 6.Nf3 Nc6 7.Bg2 Qc7 8.0–0 h6 (8...e5 9.Na3 Ba3 10.Ba3+/–) 9.c4 Bd7 (9...e5 10.c5 Bf8 11.d5+/–) 10.Na3 a6 (10...Qc8!? 11.Nb5 Bb8 12.Rb1+–) 11.c5 Be7 12.Bf4 Qd8 13.Nc4 Nd5 14.Nd6 Bd6 15.Bd6 (15.cd6?! Nf4 16.gf4 Bc8+/–) 15...Nce7 16.e4 Nc3 (16...Nf6 17.Re1+–) 17.Qb3 Ne2 18.Kh1 Bb5 19.Rfe1 0–0 (19...Nc8 20.e5 g5+–) 20.a4 (20.a4 Nd4 21.Nd4+–) 1–0. forsetinn (1810) – anonimo260 (1645), gameknot.com, 2013.

3.d4 d6 4.cd6 Qd6 5.Nf3 +/–.

3.d4 e5 4.de5 Ne4 5.Qd5 Nc5 6.Nc3 Nc6 7.e4 Qa5 8.Bb2 Nb4 9.Qd2 Na4 10.Na4 Nc2? (better is 10...Qa4 11.Bd3 Nd3 12.cd3 d6+/–) 11.Kd1+– Qd2 12.Kd2 Na1 13.Ba1 d5 14.ed5 b5 (14...Bd7 15.Nc3 Bb4+–) 15.Bb5 Bd7 16.Bd7 Kd7 17.Nf3 Bb4 18.Ke3 Rac8 19.Rb1 a5 (19...Rb8 20.Bd4 a5 21.Nb6 Kd8 22.Ng5+–) 20.Nb6 Kc7 21.Nc8 Rc8 22.Ng5 Kd7 23.Nf7 Rc2 (23...Ke7 24.e6 Rc5 25.Rd1 Rd5 26.Rd5 Ke6 27.Rg5 Kf7 28.Rg7 Kf8 29.Rh7+–) 24.e6 Ke7 25.a3! Ba3 (25...Bc3 26.Rb7 Kf6+–) 26.Rb7 Ke8 27.d6 Bc5 28.Kd3 (28...Rd2 29.Kd2 Bb4 30.Kd3 Bd6 31.Nd6 Kf8 32.e7 Kg8 33.e8Q) 1–0. kamret (2195) – xcecp07 (1990), GameColony.com, 2003.

3.e3 g6 4.d4 Bg7 5.Nf3 0–0 6.Be2 d6 7.cd6 ed6 8.0–0 Bf5 9.Nbd2 Nc6 10.c4 Nb4 (better 10...Re8+–) 11.Nh4?? (better 11.Qb3 Qb6 12.a3+–) 11...d5?? (better 11...Bc2 12.Qe1 Nd3 13.Bd3 Bd3=+) 12.Nf5+– gf5 13.Ba3 Nc6? (13...a5+–) 14.Bf8 Qf8 15.cd5 Nd5 16.Bf3 Ndb4 (16...Rd8 17.Qb3 Ne3 18.Qe3 Nd4 19.Rad1+– (19.Bb7?! Nc2 20.Qa7 Ba1+–)) 17.a3 Nd3 (17...Na6 18.Qa4 Rc8 19.Rab1+–) 18.Nc4 (better 18.Qb3 Nf2 19.Rf2 Nd4 20.ed4 Bd4+–) 18...Nb2 (18...Nc5 19.Rb1 Ne4 20.Rb7+–) 19.Nb2 Bd4 (19...f4 20.Bd5+–) 20.ed4 Nd4 (20...Rd8 21.Bc6 bc6 22.Qa4+–) 21.Qd4 Rd8 22.Qf4 (better 22.Qa7 Ra8 23.Qb7+–) 22...Qc5 23.Nc4 (23.Qg5 Kh8 24.Qd8 Kg7 25.Qg5 Kh8 26.Rfd1 Qe5 27.Rd8 Qe8 28.Re8) 23...b5 24.Qg5 Kf8 25.Qd8 Kg7 26.Nd6 Qe5 27.Qg5 Kf8 28.Nf5 Qf5 29.Qf5 b4 (29...h6 30.Bd5 Ke7 31.Rfe1 Kd6 32.Rac1 b4 33.Rc6) 30.Qf6 b3 (30...h5 31.Rfe1 Kg8 32.Re8 Kh7 33.Be4) 31.Rad1 b2 32.Rd8 1–0. BeepBeepImAJeep (2670) – Victor1989, lichess.org, 2017.

3.Bb2 b6

4.cb6 Qb6 5.Bc1 Nc6 6.e3 e6 7.Nc3 Qc7 8.Rb1 a6 9.Bb2 Bb7 10.Nf3 Rc8 11.Be2 h5 (11...e5 12.Bd3+–) 12.h3 Be7 13.Na4 d5 14.Ba1 Ba8 (better 14...Nb4!? 15.c3 Nc6+– (15...Na2? 16.Qb3+–)) 15.Ba6+– Rd8 16.Bb5 Kf8 17.0–0 Rh6 18.Nd4 Ne5 19.f4 Neg4?? (better 19...Nc4+–) 20.Be2 Rg6 (20...Ne3 21.de3 Ne4 22.Bd3+– (22.Bh5?! Qa5+–)) 21.Nb5 (21.hg4 Ng4 22.Nc3 Bc6+–) 21...Qc6 (21...Qa5 22.hg4 Qa4 23.g5+–) 22.Bd4 (22.hg4 d4 23.Bf3 Qa6 24.Ba8 Ra8 25.gh5 Rh6+–) 22...Ne4? (22...Nh6 23.Nbc3+– (worse 23.Bh5 Nh5 24.Qh5 Qc2+–)) 23.Nb6 (23.hg4 hg4 24.Nbc3 Bf6+–) 23...Bb7 (23...Ngf6 24.f5 ef5 25.Bh5 Nd2 26.Bg6 Nf1 27.Na8 Ra8 28.Bf5+– (28.Kf1?! fg6 29.Rb2 Ne4+–)) 24.Rf3 (24.hg4 hg4 25.Na7 Qc7+–) 24...f6? (24...Nh6 25.Na7 Qc7 26.a4+–) 25.a4 (25.Na7 Qc7 26.hg4 hg4+–) 25...Kg8 (25...Nh6+–) 26.Na7 Qc7 27.Nb5 (27.hg4 hg4 28.Rf1 e5+–) 27...Qc6 28.c4 (better 28.hg4!? hg4 29.Rf1 Ng3+–) 28...dc4 29.Bc4 (29.hg4 hg4 30.Rf1 Nc3–+) 29...Rd4 (29...Ngf2 30.Qc2 Nh3 31.Rh3 Rg2 32.Kg2 Nd2 33.e4 Qe4 34.Qe4 Be4 (34...Ne4?? 35.Be6 Kf8 36.Kh2+–) 35.Kf2 Nc4+–) 30.Nd4 (30.hg4? Rd2 31.Qb3 A) 31...Qb6?! 32.Nd4 Qb3 33.Nb3–/+ (33.Rb3?? Bd5 34.Bd5 ed5–+); B) 31...hg4 32.Be6 Kh7–+) 30...Qd6 31.Be6 Kh7 (31...Kh8 32.hg4 hg4 33.Bg4+–) 32.Nc4 Qc7 33.Qe1 (33.hg4!? hg4 34.Bg4 Bc8 35.Rh3 Rh6 36.Rh6 gh6+–) 33...Nd2 (33...Nh6 34.f5 Rg5+–) 34.Nd2 Bf3 35.N2f3 Bc5 (35...Nh6 36.Nh4+–) 36.hg4 1–0. FeegLood (2655) – ferrari9182 (2420), lichess.org, 2015.

4.cb6 Qb6 5.Bc3 e6 6.e3 (6.Bf6 gf6 7.e3 Nc6+–) 6...Nc6 (6...Be7 7.Nf3+–) 7.Nf3 (7.Bf6 gf6 8.Nc3 Bb7+–) 7...Bb7 (7...Be7 8.a4+=) 8.a4 Rc8 9.Na3 (9.a5 Qd8+–) 9...a6 (9...Ne4 10.Rb1 Nc3 11.Rb6 Nd1 12.Rb7 Ne3 13.fe3 Ba3 14.Bb5+–) 10.Nc4 Qc7 11.Rb1 d6 12.Be2 d5 13.Nce5 (better 13.Nb6 Rd8 14.Rb3+=) 13...Ba8?? (better 13...Ne4 14.Bd4 Nd4 15.Nd4 Nc5+=) 14.Nc6 (14.Ba6!? Rd8+–) 14...Qc6 15.Ne5 (better 15.Nd4 Qa4 16.Ra1+–) 15...Qc7? (15...Qa4 16.Ra1 Qe4 17.Ba6 Rc3 18.Bb5 Ke7 19.Ra7 Rc7 20.Rc7 Kd6+–) 16.Ba6 Rb8 (16...Ne4 17.Bc8 Nc3 18.Bd7 (18.dc3?! Qc3 19.Kf1 Qe5+–) 18...Ke7 19.Qh5+– (19.dc3?! Qc3 20.Qd2 Qe5+–)) 17.Rb8 Qb8 18.Bb5 Ke7 19.Bb4 Kd8 20.Nf7 Kc7 (20...Kc8 21.Nh8 Bb4+–) 21.Ba5 Kc8 22.Nh8 Qa7 23.Bc3 g6 (23...Qc7 24.Bf6 gf6+–) 24.Bf6 1–0. FeegLood (2525) – ferrari9182 (2440), lichess.org, 2015.

3.Bb2 d5

4.cd6 ed6 5.Nf3 Nc6 6.Nc3 Bf5 7.e3 d5 (7...Be7 8.Bb5+–) 8.Nb5 Bc5 (8...Be7 9.Nbd4 Nd4 10.Nd4+– (10.ed4?! 0–0=)) 9.Nbd4 (9.Bf6 gf6 10.Bd3 Be4+–) 9...Nd4 10.Bd4 (worse 10.ed4 Bd6+=) 10...Bb6 (10...Bd4 11.Nd4 (11.ed4?! 0–0=) 11...Bd7 12.Rb1+–) 11.Bb5 Bd7 12.Bf6 Qf6 13.Bd7 Kd7 14.0–0 Kd6 (14...Rac8 15.a4+–) 15.d4 (15.a4 Ke7+–) 15...Rae8 (15...Rhc8 16.Qd3+–) 16.Rb1 Rc8 17.Qd3 Qg6 (17...Ke7+–) 18.Qa3 Ke6 19.Rb5 (19.c4 Rc4 (19...dc4?? 20.d5 Kd7 21.Ne5 Kd8 22.Ng6 hg6 23.Qd6 Ke8 24.Qe5 Kf8 25.d6+–) 20.Ne5 Qe4 21.Nc4 dc4+–) 19...Rhd8 (19...Qc2 20.Ng5 Kf6 21.Qd6 Kg5 22.h4 Kh4 23.Qh2 Kg5 24.Rd5 Qf5 25.Qf4 Kf6 26.Qf5 Ke7 27.Rd7 Ke8 28.Qf7) 20.Qb3?? (better 20.c4 Rc4 21.Ne5+–) 20...Qe4?? Exerts pressure on the backward pawn (better 20...Qc2 21.Qa3 Kf6+=) 21.Ne1 (better 21.Ng5 Ke7 22.Ne4 de4 23.Qb4 Kf6 24.f3+–) 21...Kf5 (21...Kf6 22.Nd3 Rd7 23.Ne5+–) 22.f3 (22.c4 Bc7+–) 22...Qe6 (22...Qe7 23.c4 Rd7+–) 23.Qd3 (better 23.c4!?+–) 23...Kf6+– 24.Kf2 (24.a4 Rc4 25.a5 Qc6+–) 24...Ke7 (24...g6 25.Qb3+–) 25.Ke2 (25.a4 a6 26.Rb1 Kf6+–) 25...a6 (25...Rc7 26.a4 a6 27.Rb2+–) 26.Rb3 Ba7 (26...Qh6 27.f4+–) 27.c3 (27.Rb7!? Rd7 28.Rb3+–) 27...b5+– 28.Nc2 (28.Qh7 Bb8 29.Qh4 Kd7+–) 28...Rc7 (28...Qh6 29.h3+=) 29.Re1 (29.Qh7 g6+–) 29...Rdc8 (29...Qh6 30.h3+=) 30.Kd2 (30.Qh7 g6 31.Kd2+–) 30...Kd6? (30...h6 31.Qh7 Qf6 32.Nb4+–) 31.e4 (31.Ra3!? Rc6+–) 31...de4 (31...Qh6 32.Kd1 Qg6 33.Nb4 de4 34.fe4 Qg2 35.Ra3+–) 32.fe4 (better 32.Qe4 Qe4 33.fe4+–) 32...f6? (32...Qh6 33.Ne3 Kd7 34.h3+–) 33.Ne3 (33.Qg3 Kd7 34.Qg7 Kd6 35.Qg3 Kd7+–) 33...f5? (better 33...Kd7+–) 34.Nf5+– Qf5 (34...Kd7 35.Qh3 g6+–) 35.Qg3 (35.ef5!? Rd7 36.Re6 Kc7 37.Ra6 Kd8+–) 35...Kc6 36.Kd3 (36.Kd3 Qf7 37.Qg4=+) 1–0. FeegLood (2485) – al_sa_co (2250), Time forfeit, 2016.

4.cd6 e5 5.Nf3 (5.Be5 Nc6 6.Bf6 Qf6 7.Nc3+–) 5...Qd6? (better 5...e4!? 6.Nd4 Bd6+=) 6.Ne5 Bg4 (6...Nbd7!? 7.Nd3 Qc6+–) 7.Ng4 Ng4 8.e3 Ke7?? (8...Qe6+–) 9.Qg4 (better 9.Ba3 Qa3 10.Na3 Ne5+–) 9...a6 (9...Qd7 10.Qg3+–) 10.Nc3 (better 10.Ba3 Qa3 11.Na3+–) 10...Qe6 (10...Nd7 11.Bc4+–) 11.Qb4 Kd7 (11...Ke8 12.Qb7 Qc6 13.Qc6 Nc6 14.Rb1+–) 12.Qd4 (better 12.Qb7 Kd8 13.Qa8+–) 12...Qd6 (12...Kc8 13.Bc4 Qg6 14.Qd5+–) 13.Qg4 (better 13.Nd5 Ke8 14.Nb6 Qd4 15.Bd4 Ra7+–) 13...Kc6 (13...Qe6 14.Qa4 Qc6 15.Bb5 ab5 16.Qa8 Qg2 17.0–0–0+–) 14.Qc4 (better 14.Qe4 Kc7 15.Nb5 ab5+–) 14...Qc5 15.Qe4 (better 15.Qf7 Nd7+–) 15...Kd6 (15...Kc7 16.Nd5 Kd8 17.Be5+–) 16.Na4 (16.Qb7 Ke6 17.Ne4 Nd7 18.Nc5 Bc5+–) 16...Qd5 (16...Qc6 17.Qe5 Kd7 18.Qa5+–) 17.Qf4 (better 17.Qd5 Kd5 18.Nb6 Kc6 19.Na8 Nd7+–) 17...Kc6 18.Bc4 (better 18.Nc3 Qa5 19.Be2+–) 18...Qd6 (18...Qg2 19.Rf1 Bd6 20.Qf7 Rf8 21.Qg7 Qg7 22.Bg7 Re8+–) 19.Qe4 Kd7 20.Be5 (20.Qb7!? Kd8 21.Bd4 Nd7 22.Qa8 Qb8 23.Qa6 f6+–) 20...Qe7 (20...Qc6 21.Qd4 Ke8 22.Bb8 Be7+–) 21.Nb6 Ke8 22.Na8 Nd7 23.Qb7 (better 23.f4!? Ne5 24.Qe5 Qe5 25.fe5 Ba3+–) 23...Qe5 24.Nc7 (better 24.Rb1 Kd8+–) 24...Ke7 (24...Kd8 25.Qa8 Kc7 26.Rb1+–) 25.Qc6 (better 25.Nd5 Kd8 26.Rb1 Qb8 27.Qb8 Nb8 28.Rb8 Kd7 29.Ba6 g5+–) 25...Qd6 (25...Qa1 26.Ke2 Qe5 27.Nd5 Kd8 28.Ba6 Qh5 29.f3 Qd5 30.Qd5+–) 26.Qe4 Kf6 (26...Ne5 27.Rb1 f5 28.Qh4 Kd7+–) 27.Nd5 (27.Nd5 Kg5 28.Qf3+–) 1–0. FeegLood (2560) – KothGamesOnly (2120), Time forfeit, 2015.

3.Bb2 g6

4.d4 Bg7 5.e3 0–0 6.c4 d6 7.cd6 Qd6 8.Nf3 Bg4 9.Qc2 (9.c5 Qc7+/–) 9...Nc6 10.Nc3 Bf3 11.gf3 a6 (11...Rfd8 12.Ne4 Qc7 13.Rd1+/–) 12.Bd3 (12.c5 Qc7 13.Qb3 Rac8+/–) 12...e5 13.d5 Nb4 14.Qb1 Rac8 (better is 14...Nd3!? 15.Qd3 Rac8+=) 15.Be2+/– b5 (better is 15...a5+/–) 16.cb5?? (better is 16.a3 Nbd5 17.cd5 Nd5 18.Nd5 Qd5 19.0–0+–) 16...Nbd5 (16...Nfd5 17.a3 Nc3 18.Bc3 Rc3 19.Qb4 Qb4 20.ab4 ab5 21.0–0=) 17.Nd5+= Nd5 18.0–0 Nc3 19.Bc3 Rc3 20.Qb2 Rfc8 21.Rac1 Rc1 22.Rc1 Rc1 23.Qc1+/– ab5 24.Qc8 Bf8 25.Bb5 Kg7 26.Qc6 Qd1 27.Kg2+/– h5 28.a4 Qa1? 29.Qc2 Bb4 30.Qe2 Qc3+/– 31.e4 Qd2 32.Qd2 Bd2 33.Kg3 Ba5 34.h4 f5 35.ef5 gf5+= 36.Kg2 f4= 37.Kg1 Kf6 38.Kf1 Kf5 0–1. Fournier,Frederic – Guest821189, Partie amicale, 1m + 0s, 2008.

4.Bf6 ef6 5.d4 b6 6.cb6+– Qb6 7.e3 Bb4 8.Nd2 Qa5 9.Ngf3 Nc6 10.Be2 Ba6 (10...Bc3 11.Rb1+–) 11.0–0 Be2 12.Qe2 Bc3 13.Rab1 0–0 (13...Bd2!? 14.Nd2 Qa2+–) 14.Ne4 d5 (14...f5 15.Nc3 Qc3 16.Rb3+–) 15.Rb5 de4 16.Ra5 ef3 (16...Na5 17.Nd2 f5 18.Nb1+–) 17.Qc4 fg2 18.Rb1 (18.Kg2 Ba5 19.Qc6 f5+–) 18...Ba5 (18...Nd4 19.Rd5 (19.Kg2?! Ba5 20.ed4 Rac8+–) 19...Rac8 20.Rc5 Nf3 21.Kg2+–) 19.Qc6 Rab8 (19...f5 20.Kg2 f4 21.Qa6+–) 20.Rb8 Rb8 21.Kg2 (21.Qa6 Bc3+–) 21...Rb2 22.c4 (better 22.a3!? Kg7+–) 22...Be1 23.Qf6 Ra2 24.c5 Kf8?? (24...Bf2 25.Qd8 Kg7+–) 25.c6 Rf2 26.Qf2 Bf2 27.c7 (27.Kf2 Ke7 28.Ke2 f5+–) 27...Ke7 (27...Be3 28.c8Q Kg7 29.Qc5+–) 28.c8Q (28.Kf2 Kd7–+) 28...Be3 (28...Bh4 29.e4 a5 30.e5+–) 29.Qc7 Kf6 (29...Ke8 30.Qe5 Kd7 31.Qe3 h5+–) 30.Qe5 1–0. FeegLood (2860) – Tantalus (2050), lichess.org, 2015.

4.Bf6 ef6 5.d4 Bg7 6.e3 0–0 7.Nf3 b6 8.cb6 ab6 9.Be2 d5 10.Nbd2 f5 11.0–0 f4 12.ef4 f5 (12...Qc7!?+–) 13.c4 Be6 14.Ng5 Bf7 15.Nf7 Kf7 (15...Rf7 16.Bf3 Rd7 17.Bd5 Rd5 18.cd5 Bd4 19.Rb1 Qd5 20.Nb3+–) 16.cd5 (16.Bf3 Ra5 17.Bd5 Rd5 18.cd5 Bd4+–) 16...Nd7 (16...Bd4!? 17.Rb1 Kg8+–) 17.d6 (17.Nc4 Bh6+–) 17...Kg8 (17...Bd4 18.Qb3 Kg7 19.Rad1+–) 18.Qb3 Kh8 19.Bf3 Rb8 (19...Ra7 20.Rad1+–) 20.Nc4 Qf6 (20...Bd4 21.Rad1 Qf6 22.Qb5+–) 21.Ne5 Qd6 22.Nf7 Rf7 23.Qf7 Nf6 (23...Bd4 24.Rad1 Rd8 25.Rfe1+–) 24.Rad1 Ne4 25.Be4 fe4 26.Rfe1 (26.f5 gf5 27.Qf5 Re8+–) 26...Rf8 27.Qb3 Qf4 (27...Rf4 28.g3 Rf3 29.Qc2+–) 28.Qg3 (28.Qc2 Qd6 29.Re4 Qd5+–) 28...Qf5 29.Re2 e3 (29...Re8 30.Qb3+–) 30.Qe3 (worse 30.Re3 Qc2 31.Ree1 Qa2+–) 30...Bh6 (30...b5+–) 31.Qh6 Qf7 32.Rde1 Qg7 33.Qg7 Kg7 34.Re7 Kh6 35.Re8 (35.R1e5!? Rf4 36.h3 Rf6+–) 35...Rf5 36.g4 Ra5 (36...Rf4 37.R1e4 Rf7 38.R8e7+–) 37.h3 Ra2 38.R1e7 Kg5 39.Kg2 (39.Rh7 Ra5 40.Re5 Re5 41.de5+–) 39...Kf4 (39...Kf6 40.Rh7 Ra5 41.h4 Rh5 42.gh5 gh5 43.d5 Kg6 44.Rb7 Kf5 45.f3 b5 46.Re6 b4 47.Rf7) 40.Re4 (40.Rf7 Kg5 41.Re5 Kh6 42.g5 Kh5 43.Rh7) 40...Kg5+– 41.R8e6 (41.R8e5 Kh4 42.g5 Kh5 43.Kg3 Ra3 44.f3 Rf3 45.Kf3 h6 46.Kg3 hg5 47.Rh4) 41...Kh6 (41...Ra7+–) 42.h4 (42.Re7 Ra5 43.h4 Rf5 44.Kg3 Ra5 45.g5 Rg5 46.hg5 Kg5 47.f4 Kf6 48.R4e6 Kf5 49.Rb6 h6 50.Re5) 42...Kg7 43.g5 (43.Re7 Kg8 44.Re8 Kg7 45.R4e7 Kh6 46.Rh8 Rf2 47.Kf2 g5 48.h5 b5 49.Rhh7) 43...Rf2 44.Kf2 Kg8 (44...h6 45.Re7 Kh8 46.Re8 Kg7 47.R4e7) 45.Re7 (45.Re8 Kf7 46.R4e7) 45...Kf8 (45...b5 46.Re8 Kf7 47.R4e7) 46.Re8 Kf7 47.R4e7 1–0. FeegLood (2775) – makeareason (2275), lichess.org, 2016.

4.Bf6 ef6 5.d4 Bg7 6.e3 0–0 7.Nf3 d6 8.cd6 Qd6 9.c3 Qd8 (9...Be6 10.Nbd2+–) 10.Nbd2 Nc6 11.Rc1 Ne7 12.Be2 f5 13.0–0 b6 14.Re1 Bb7 15.g3 (15.Qb3 Qc7+–) 15...Rc8 16.Nh4 Bf3?? (better 16...f4+–) 17.Bf3 Nd5 18.Ng2 (18.c4 Nf6+–) 18...Nf6 (18...Rc3 19.Bd5 Rc1 20.Bf7 (worse 20.Qc1 Qd5 21.Qc3 Rd8+–) 20...Rf7 21.Qc1+–) 19.Nf4 g5 20.Nh5 g4 21.Nf6 Bf6 22.Bg2 Bg7 23.e4 (23.Qa4 Rc7+–) 23...h5 (23...fe4 24.Re4 f5 25.Re6+–) 24.ef5 h4 (24...Re8 25.Re8 Qe8 26.Ne4+–) 25.Qg4 h3 (25...Kh8 26.Ne4 Rc6 27.Qh4 Qh4 28.gh4+–) 26.Bh3 (better 26.Ne4 f6 27.Qh3 Re8+–) 26...Qf6 (26...Rc6 27.Bg2 Rh6 28.Ne4+–) 27.Ne4 Qh6 28.f6 Kh8 29.fg7 Qg7 30.Qg7 (30.Qh4 Qh7 31.Qh7 Kh7 32.Bc8 Rc8+–) 30...Kg7 31.Bc8 Rc8 32.Nd6 Rd8 33.Nf5 Kf6 34.Re5 Rg8 35.Rce1 Rb8 36.f4 b5 37.g4 b4 38.g5 (38.R1e3 Rg8 39.g5 Rg5 40.fg5 Kg6 41.Nh4 Kg7 42.Re8 bc3 43.Nf5 Kg6 44.Ne7 Kg5 45.Rg3 Kf4 46.Nd5 Kf5 47.Re5) 38...Kg6 39.cb4 Rb4 40.Ne7 Kh5 41.R5e4 (41.g6 f5 42.Rf5 Kh4 43.g7 Rb1 44.Ng6 Kh3 45.Rh5 Kg4 46.Rg5 Kf3 47.Rg3) 41...Kg4 42.f5 (better 42.Ng8 Kf5+–) 42...Kg5 43.R1e3 Kf6 44.Nd5 Kf5 (44...Kg7 45.f6 Kh6 46.Nb4 Kg6 47.Rg3 Kh5 48.Re8 a6 49.Rh8) 45.Nb4 (45.Rf4 Kg6 46.Rg3 Kh5 47.Nf6 Kh6 48.Rh4) 45...Kg6 46.Nd5 (46.Rg3 Kh5 47.Re8 f5 48.Rh8) 46...f5 (46...f6 47.Rg3 Kf7 48.Re7 Kf8 49.Rc3 f5 50.Rc8) 47.Re6 (47.Rg3 Kf7 48.Re7 Kf8 49.Rc3 f4 50.Rc8) 47...Kg5 (47...Kh7 48.Rc6 Kg8 49.Re7 f4 50.Rc8) 48.Rg3 Kh4 (48...Kh5 49.Nf4 Kh4 50.Rh6) 49.Nf4 (49.Rh6) 49...a5 (49...a6 50.Rh6) 50.Rh6 1–0. FeegLood (2750) – Horobetz (2510), lichess.org, 2016.

3.d4 e6

4.c4 (4.Nf3 d6 5.cd6 Bd6+/–) 4...b6 (4...e5 5.e3+=) 5.cb6+/– Qb6 (5...ab6 6.Nf3+/–) 6.e3 Nc6 7.c5 (7.Nf3 Bb7+/–) 7...Qc7 8.Nf3 (8.Na3 Ba6+/–) 8...Bb7 (8...d6 9.cd6 Bd6 10.Nbd2+=) 9.Be2 (9.Na3 Qa5 10.Qd2 Qd8+/–) 9...Be7 (9...d6 10.cd6 Bd6 11.Bd2+=) 10.0–0 0–0 (10...d6 11.cd6 Bd6 12.Na3+/–) 11.Nc3 a6 (11...Rfc8+/–) 12.a3 (better is 12.e4!?+/–) 12...d6+= 13.cd6 Bd6 14.Bd2 Qe7 (14...Rfc8 15.Qa4+=) 15.Qa4+/– e5 (15...Na7 16.Rfb1+/– (16.Ba6? Nc8–+)) 16.d5 Na7 17.e4 Nd7 (17...Nb5 18.Bb5 ab5 19.Qb3+/– (worse is 19.Qb5 Ba6 20.Qb1 Rfb8+=)) 18.Ne1 (better is 18.Bg5!? f6 19.Be3+–) 18...Nb5+/– The pressure on the isolated pawn grows 19.Nb5 ab5 20.Qc2 Rfc8 (20...b4 21.Qb1 f5 22.Nc2+/–) 21.Qb1+/– Ba3 (21...f5 22.Bb5 fe4 23.Bg5+=) 22.Bb5 Rcb8 23.Qd3 Bd6 24.Nc2 Nc5 25.Qc4 Qc7 26.Ra8 Ba8 27.Ra1+– Qb6 28.Rb1 Qd8+/– 29.Be3 Rc8 30.Bc5 Rc5+/– 31.Qe2 h6 32.Ne3 Qb6 33.Bd3+– Qd8 34.Qb2 Qc7 35.g3 Rc3 36.Bf1 White threatens Ra1 36...Qc8 37.Nf5 Bc5?? 38.Qb8 Bf8 39.Qe5 Rc1 40.Rb8 (40.Rb8 Bb7 41.Kg2+–) 1–0. Schuchardt,Wolfgang (1690) – Manke,Karsten (1835), Germany, 2005.

4.e3 Nc6 5.Nf3 a6 6.Be2 Qc7 (6...d6 7.cd6 Bd6 8.c4+–) 7.0–0 Ng4 (7...d6 8.cd6 Bd6 9.c4+–) 8.h3 h5 (8...Nf6 9.c4+–) 9.Nbd2 (9.hg4?! hg4 10.g3 gf3 11.Bf3 d6 12.cd6 Bd6=) 9...b6? (better 9...d6 10.cd6 Bd6+–) 10.cb6 (10.hg4?! hg4 11.cb6 Qd8+–) 10...Qb6 11.Nc4 (better 11.hg4 hg4 12.Ne5+–) 11...Qc7 12.Bb2 (worse 12.hg4 hg4 13.Nfe5 d5+–) 12...Bb7? (12...Nf6 13.Nce5+–) 13.Nce5 (better 13.hg4 hg4 14.Nfe5+–) 13...Nce5+– 14.de5 (14.hg4?? Nf3 (14...Ng4?! 15.Ne5–/+) 15.Bf3 hg4–+) 14...f6? (better 14...Rb8 15.Qd4 Nh6+–) 15.hg4+– hg4 16.Nh2?? (16.Ne1 Rb8 17.Qd4 f5+–) 16...fe5? (better 16...Qc6 17.f3 g3+–) 17.Ng4+– e4 (17...d6 18.Rb1+–) 18.Be5 (better 18.Ne5!? 0–0–0 19.Bh5 Qa5+–) 18...d6 19.Bg3 Qf7 (19...Be7 20.Rb1+–) 20.f4 (20.Rb1 e5+–) 20...Be7 (20...Qf5 21.Rb1 Bc8 22.Rb6+–) 21.Kf2 Kd7 (21...Rc8 22.Rb1 Bf8 23.Ke1+–) 22.Rh1 (better 22.Ne5 Ke8 23.Nf7 Kf7 24.Rb1+–) 22...Rh1 23.Qh1 d5 (23...Qf5+–) 24.Ne5 (24.Ne5 Kc8 25.Nf7+–) 1–0. BeepBeepImAJeep (2630) – Jaume_Barcelona (1890), lichess.org, 2015.

3.d4 g6

4.Nc3 Bg7 5.e4 0–0 6.e5 Ne8 7.Nf3 d6 8.cd6 ed6 9.Bf4 Nc6 10.ed6 Nd6 11.Be2 Qa5 12.Qd2 Nf5 13.Be3 Rd8 14.Nb5 Qd2 15.Kd2 a6 16.Bg5 Rd7 17.c3 ab5 18.Bb5 Bh6 19.Bh6 Nh6 20.Rhe1 Rd8 21.Bc4 Bg4 22.Ne5 Ne5 23.Re5 b6 24.Rb1 Ra5 25.Ra5 ba5 26.f3 Be6 27.Be6 fe6 28.Rb5 Ra8 29.Rb7 Nf7 30.Re7 Ra6 31.c4 Kg7 32.c5 Kf6 33.Rc7 h5 34.Kd3 Nd8 35.Kc4 Ra8 36.c6 a4 37.h4 a3 38.g3 Rb8 39.g4 hg4 40.fg4 Rb2 41.g5 Kf5 42.Rc8 Nc6 43.Rc6 Ra2 44.Ra6 Rh2 45.Ra3 Rh4 46.Ra5 Kf4 47.Re5 Rg4 48.Re6 Rg5 49.d5 Rg1 50.d6 g5 51.d7 Rd1 52.Re7 g4 53.Kc3 g3 54.Rf7 Ke3 55.Re7 Kf2 56.Rf7 Kg1 57.Kc2 Rd6 58.Kc3 g2 59.Kc4 Kh2 60.Rh7 Kg3 61.Rg7 Kf3 62.Kc5 Rd7 63.Rd7 g1Q 64.Kd5 Qg5 65.Kc4 Qg8 66.Kb5 Ke4 67.Re7 Kd5 68.Rd7 Ke6 69.Rd3 Qb8 70.Kc4 Qc7 71.Kd4 Qc2 72.Re3 Kd6 73.Rd3 Qa4 74.Ke3 Ke5 75.Kd2 Qb4 76.Ke2 Qb2 77.Rd2 Qc3 78.Rd3 Qc2 79.Rd2 Qc4 80.Rd3 Ke4 0–1. marus – tjk, internet, 2001.

4.Nf3 Bg7 5.e3 Nc6 (5...0–0 6.Bd3+/–) 6.Be2 (6.Bd3 0–0+/–) 6...d5 (6...Ne4 7.c3+=) 7.0–0 Bg4 (7...Ne4 8.Ba3+/–) 8.Nbd2 (8.c4 Ne4+/–) 8...0–0 9.c4 Ne4 10.cd5 (10.Ne4 de4 11.Nd2 Be2 12.Qe2 e5+–) 10...Nc3 11.Qe1 Ne2 (11...Nb4 12.Ne4 Nca2 13.d6+–) 12.Qe2 Qd5 13.Rb1 (13.h3 Bd7+/–) 13...Rab8 (13...e5 14.Qc4 (14.Rb7?! Nd4 15.ed4 Qb7=) 14...Bf3 15.gf3 Qc4 16.Nc4 ed4 17.Rb7+=) 14.Qc4 Bf3+= 15.gf3 Qg5 16.Kh1 Qh5 17.Rg1 e5 18.d5+/– Na5 19.Qb4 b6+/– 20.cb6 Rb6+= 21.Qg4 Qg4 22.fg4 Rb1 23.Nb1 Nc4 24.Nd2 Nd2 25.Bd2 e4 26.Rd1 f5 27.g5 Rd8 28.Bb4 Be5 29.Kg2 f4 30.ef4+– Bf4 31.h4 e3 32.fe3+– Be3 33.Kf3 Bb6 34.d6 Kf7 35.Kf4 Ke6 36.Re1 Kd5 37.Re7 Rf8+/– 38.Kg4 Bc5?? 39.Bc5+– Kc5 40.d7 Rd8 41.Rh7 Kd6 42.h5 gh5 43.Kh5 Ke6 44.g6 Kf6 45.Rf7 Ke6 46.Kg5 a5 47.a4 Rh8 48.Rg7 Rd8 49.Rh7 Rd7 50.Rd7 Kd7 51.g7 1–0. Fredek (2065) – Guest412616, Freundschaftspartie, 5m + 0s, 2006.

3.e3 e6

4.d4 d6 5.cd6 Bd6 6.Bb5 (6.c3 Bd7+=) 6...Bd7 7.a4 0–0 (7...e5 8.Ne2+=) 8.Ba3 (8.Nf3 Ne4+=) 8...Ba3 9.Ra3 (9.Na3 a6 10.Bd7 Nbd7+=) 9...Qa5 (9...Bb5 10.ab5 Qd5 11.Qf3 Qb5 12.Rb3=) 10.Qd2+= Qc7 11.Nf3 Bc6 12.Bc6 Nc6 13.c4 (13.0–0 Rfd8+=) 13...Na5= 14.Ne5 (14.Qc2 Nc4 15.Rc3 Qa5=) 14...Rac8 (14...Nc4!? 15.Qc2 Qa5 16.Qc3 Qc3 17.Rc3 Ne5 18.de5 Nd5=) 15.c5+= b6 (15...Rfd8 16.Qc2+=) 16.cb6+– ab6 (16...Qb6 17.0–0+=) 17.0–0 (17.Rc3 Qb7 18.Rc8 Rc8+–) 17...Qb7 (17...Nd5 18.Qd3+–) 18.Nc3 (18.Qe2 Ne4+–) 18...Qc7 (18...Nd7 19.Nd7 Qd7 20.Qd3+–) 19.Nb5 Qb8 (19...Qc2 20.Qd3+–) 20.f3 (20.Rc3 Rc3 21.Qc3 Rc8+–) 20...Nc4 21.Nc4 Rc4 22.Rc1 Rc1 23.Qc1 Nd5 24.e4 Nf4 25.Qd2 f5 (25...Rd8 26.Rc3+–) 26.e5 (26.g3 Nh3 27.Kg2 fe4 28.Kh3 ef3+–) 26...Nd5+– 27.Nd6 Qa7 28.a5 (28.Ra2+–) 28...Nc7 (28...Qa6!?+–) 29.Ra2 (29.Qb4 ba5 30.Ra5 Qb8+–) 29...Qa6 (29...ba5 30.Ra5 (worse 30.Qa5 Qd4 31.Kf1 Nd5–/+) 30...Qb6 31.Rc5+–) 30.ab6+– Qb6 31.Kf2 (31.Rb2 Qa6+–) 31...f4 (31...Rb8 32.Ra1+–) 32.Rb2 (better 32.Qb2 Qc6 33.Ra7+–) 32...Qa7?? (better 32...Qa6+–) 33.Rb7+– Qa1 34.Rc7 g6 (34...Qa8+–) 35.Ne4 Qh1 (35...Rf7 36.Rf7 Kf7 37.Qf4 Kg8+–) 36.Nf6 Rf6 37.ef6 Qb1 38.Rg7 (38.Qf4 Qa2 39.Kg3 Qa7 40.f7 Kf8 41.Qh6) 38...Kh8+– 39.Qf4 Qb4 (39...Qa2 40.Kg3 Qa8 41.Qh6 Qb8 42.Kh3 Qg8 43.Rg8 Kg8 44.Qg7) 40.Qe5 (40.Re7 Qb2 41.Kg3 Qb5 42.d5 Kg8 43.f7 Kf8 44.Qh6 Ke7 45.f8Q Kd7 46.Qh7) 40...Qb1 (40...Qb2 41.Kg3 Qb4 42.f7 Qe1 43.Kh3 Qg3 44.Kg3 h6 45.f8Q) 41.f7 (41.Rg8 Kg8 42.Qe6 Kf8 43.Qe7 Kg8 44.Qe8) 41...Qc2 42.Kg3 Qg2 (42...Qf2 43.Kf2 h6 44.f8Q) 43.Kg2 h6 44.Rg6 (44.f8Q) 44...Kh7 45.Qg7 (45.f8N) 1–0. Sie – Cpu, AI Factory's Chess, 2016.

4.d4 Be7 5.Nf3 0–0 6.Be2 b6 7.cb6 ab6 8.0–0 Nc6 9.Nbd2 d5 10.c4 Bb7 11.cd5 Nd5 12.Bb2 Bf6 13.Nc4 Re8 (13...b5 14.Nce5 b4 15.Nc6 Bc6 16.Bd3+–) 14.Nfe5 (14.Qb1 Ba6+–) 14...Ne5 15.de5 Be7 16.Bf3 Rc8 (16...b5 17.Nd6 Bd6 18.ed6 Qd6 19.e4+=) 17.Rc1 (better 17.Qb3+–) 17...Qc7? (better 17...b5!? 18.Nd6 Rc1 19.Qc1 Bd6 20.ed6 Qd6+=) 18.Qb3 (18.e4 Nf4 19.Nd6 Bd6 20.Rc7 Bc7+–) 18...Qb8 19.Rfd1 Bc5 (19...Red8 20.Bd4+–) 20.a4 (20.e4!? Nf4 21.Nd6 Bd6 22.ed6 Rc1 23.Bc1 e5 24.Qb6 Qa8+–) 20...Ne7 21.Nd6 (21.e4 Rc7+–) 21...Bd6 (21...Bf3 22.gf3 Bd6 23.Rc8 (23.Rd6?! Rc1 24.Bc1 Nc8=) 23...Rc8 24.ed6+–) 22.ed6 (better 22.Rc8 Rc8 23.Bb7 (23.Rd6?! Bf3 24.gf3 Qa8+–; 23.ed6?! Bf3 24.gf3 Ng6+–) 23...Qb7 24.ed6+– (24.Rd6?! Nc6+–)) 22...Nf5?? (better 22...Rc1 23.Bc1 Bf3 24.gf3 Ng6+–) 23.d7+– Rcd8 (23...Rc1 24.de8R (24.de8B?! Rd1 25.Qd1 Bf3 26.Bf7 Kf7 27.Qf3 Kg8+–; 24.de8N?! Rd1 25.Bd1 Qe8+–) 24...Qe8 25.Rc1 Bf3 26.gf3+–) 24.de8Q Re8 25.Bb7 Qb7 26.Qc3 f6 (26...h5 27.Qb4+–) 27.Qc6 Qf7 28.Rd7 Qg6 29.Rc7 h5 30.Rc8 Kh7 (30...Rc8 31.Qe6 Kh7 32.Rc8 Nh6 33.Qb6 h4+–) 31.Qe8 Qe8 32.Re8 Kg6 33.Rc7 (33.Rc7 e5 34.Rb8+–; 33.Re6 h4+–) 1–0. BeepBeepImAJeep (2465) – riskerblunder (1770), lichess.org, 2018.

4.d4 Be7 5.Nf3 d6 6.cd6 Bd6 7.Bd3 Be7 (7...0–0 8.e4 e5 9.de5 (worse 9.Ne5 Bb4 10.Bd2 Qd4 11.Bb4 Qa1 12.Bf8 Qe5=) 9...Be5 10.Ne5+–) 8.0–0 0–0 9.c4 Nc6 10.Nc3 Nb4 11.Bb1 Nc6 12.Bb2 Nb8 13.Ne5 Nbd7 14.Ne2 Ne5 15.de5 Nd7 16.Nf4 Nc5 (16...Qc7 17.Qc2 g6 18.Qe4+–) 17.Qh5 Do you see the mate threat? 17...g6 18.Qf3 Rb8 19.Bd4 b6 20.Rd1 Bb7 21.Qe2 Qc7 22.Bc2 Ne4 (22...Nd7 23.Nd3+=) 23.Be4 Be4 24.f3 Bb7 25.e4 (better 25.Rac1+=) 25...f6?? (better 25...Rfd8!?=) 26.ef6 (better 26.Ne6 Qc6 27.Nf8 Rf8 28.ef6 Bf6 29.Bf6 Qf6 30.c5+–) 26...Bf6 (26...Rf6 27.Nd3 Rff8 28.Be5+–) 27.Bf6 (better 27.Ne6!? Bd4 28.Nd4+– (worse 28.Rd4 Qe5–/+)) 27...Rf6+– 28.Nh3 (28.Nd3 Qc4 29.Qb2 Rff8+–) 28...Qc6 (28...Ba6!?+=) 29.Rac1 Rc8 30.Nf2 Rf7 31.Qe3 Rd7 (31...e5 32.Ng4 Re7 33.Qg5+–) 32.Nd3 (better 32.Ng4!? Rf8 33.Qg5+–) 32...Rcd8 33.Qe2 (33.Nb2 Rd1 34.Nd1 Qa4+–) 33...Qd6 34.Nf2 Qe7 (34...Qc5!?+=) 35.Rd7+– Rd7 36.Qc2 Qc5 37.Kf1 Rd4 38.Nd3 (better 38.Ng4+=) 38...Ba6?? The pressure on the isolated pawn grows (better 38...Qd6 39.e5 Qd8=) 39.Nc5+– bc5 (39...Rc4 40.Na6 Rc2 41.Rc2+–) 40.Qb3 (better 40.Qa4 Bc4 41.Rc4 Rc4 42.Qc4 Kf7+–) 40...Kf7 41.Qa4 Kf6 42.Qa6 Rd6 43.Qd6 Kg5 (43...g5 44.e5 Kf7 45.Rb1 g4 46.Rb7 Kg6 47.Qe6 Kg5 48.Qf6 Kh5 49.Rh7) 44.Qg3 (44.h4 Kf6 45.e5 Kf5 46.Qd8 Ke5 47.Re1 Kf5 48.Qf8) 44...Kh6 (44...Kf6 45.Qf4 Ke7 46.Rb1 e5 47.Rb7 Ke6 48.Qf7 Kd6 49.Qd5) 45.Qh4 Kg7 46.Rd1 h6 (46...h5 47.Rd7 Kh6 48.Qf4 g5 49.Qf6) 47.Rd7 Kf8 48.Qd8 1–0. BeepBeepImAJeep (2670) – benmakhlouf01 (2000), lichess.org, 2016.

2.bc5 g6

3.d4+/– e5 4.c3 ed4 5.Qd4 f6 6.Bf4 Bg7 7.Na3 Nc6 8.Qd2 (8…g5 9.Bd6+–) 1–0. Frank Bendig – RX7 MASTER, ChessWorld.net, 2004.

3.Bb2 f6

4.d4 b6 5.cb6 Qb6 +/–.

4.d4 e5 5.c3 Qe7 (5...b6 6.cb6 Qb6 7.Ba3+/–) 6.e3 Nc6 7.Bc4 Nh6 8.Nf3. Darlanio – RX7 MASTER, ChessWorld.net, 2004.

4.e3 Qa5 5.Nf3 +/–.

4.e3 Nh6 5.Nf3 Bg7 (5...Qa5 6.Nc3+/–) 6.Bc4 (6...Qa5 7.Nc3+/–; 6.Nc3 Nf7+/–) 1–0. rookie2 – RX7 MASTER, ChessWorld.net, 2004.

4.e4 Qa5 +/–.

4.e4 e5 5.d4 ed4 6.Bd4 Nc6 +/–.

4.e4 f5?? 5.Bh8+– fe4 6.Nc3 +–.

4.e4 f5?? 5.Bh8+– Nf6 6.ef5 Nc6 7.Nc3 +–.

4.e4 f5?? 5.Bh8+– Nf6 6.ef5 Nc6 7.fg6 hg6 8.Nc3+– 1–0. marekt – RX7 MASTER, ChessWorld.net, 2004.

3.Bb2 Nf6

4.d4 Bg7 5.e3 0–0 6.Nf3 Nc6 7.Bd3 d6 8.cd6 Qd6 9.Nbd2 (9.0–0 Rd8+/–) 9...Bg4 (9...Nb4 10.Nc4 Qd5 11.Nce5+=) 10.0–0+/– Nb4 (10...Rac8 11.c4+/–) 11.Be2 (11.Ba3 Rfc8 12.Nc4 Rc4 13.Bc4 e6+–) 11...Rac8 12.c4 Bf5 13.c5 Qc6 (13...Qc7 14.Qa4 Nbd5 15.Rfc1+/– (15.Qa7? Ra8 16.Qa8 Ra8–+)) 14.a3 (14.Qb3 Na6+–) 14...Nbd5 (14...Nd3 15.Qb3 Nb2 16.Qb2+/–) 15.Ne5 Qc7 16.Ndf3 Ng4 17.Ng4 Bg4 18.h3 Bf5 19.Bd3 Be6 20.Rb1 a6 21.Qc2 Nf6 22.Rfc1 Qd7 23.Ne5 Qe8 24.e4 Nd7 25.Nd7 Qd7? 26.d5 Bh3 27.Bg7 Kg7 28.gh3 Qh3 29.Bf1 Qg4 30.Bg2 f5 31.f3 Qg5 32.Qc3 Kg8 33.e5 White prepares d6 33...h5 34.d6 e6 35.Rb7 h4 36.Kf1 Qg3 37.c6 h3 38.Bh1 h2?? 39.Bg2 Qe5 40.Qe5 (40.Qe5 Rc7 41.dc7 Rc8 42.Rd1 Kh7 43.Rd7 Kh6 44.Qf6 h1Q 45.Bh1 Rc7 46.Qh4) 1–0. Fournier,Frederic (1650) – lugan1, Active, 2009.

4.e4 Nc6 5.d4 Qa5 6.Bc3 Qa4 7.f3 Bg7 8.a3 d6 9.cd6 ed6 10.d5 Ne5 11.Bd4 Qa5 12.Qd2 Qc7 13.Bb5 Bd7 14.Nc3 Nd5 15.Nd5 Qd8 16.Bd7 Qd7 17.f4 Nf3 18.Nf3 Bd4 19.Qd4 0–0 20.Nf6 1–0. guest1149 – guest33, ICC, 2003.

4.Nf3 Bg7 5.d4 0–0 6.Nbd2 b6 7.cb6 Qb6 8.Rb1 Qa5 9.a3 Ba6 10.c3 d6 11.g3 Qc7 12.Bg2 Bb7 13.0–0 Ne4 14.Re1 Nd2 15.Qd2 a5 16.e3 Be4 17.Rbc1 Nd7 18.Qe2 Qb7 19.c4 Nf6 20.d5 Rfb8 21.Bd4 h5 22.Bf1 Qb3? (22...e5 23.Ba1+–) 23.Ra1?? (better 23.Nd2 Qa3 24.Bf6+–) 23...Qb7 24.Ng5 Qd7? (24...Bf5 25.Rad1+–) 25.f3 (25.Bf6 Bf6 26.Ne4 Ba1 27.Ra1 Qb7+–) 25...Bd5? (better 25...Bf5!?+–) 26.cd5 Nd5 27.Bg7 Kg7 28.e4 Nf6 29.Bh3 Qd8 30.Qa2 a4?? (30...Qb6 31.Kh1 Qb3+–) 31.Qf7 Kh6 32.f4 (better 32.Ne6 Qh8 33.Qe7 Ra6+–) 32...Qf8 33.Qa2 Rb3 34.Rab1 Rab8 35.Rb3 Rb3 36.Rb1 (better 36.Be6!? Rd3+–) 36...Qb8 37.Rb3 ab3 (37...Qb3 38.Qa1+–) 38.Qb2 Qb6 39.Kg2 Qe3 (39...Qc6 40.Qb3 Ne4 41.Bd7+–) 40.e5 (better 40.Be6 h4+–) 40...de5 41.Nf3 (41.Nf7 Kg7 42.Ne5 Qe4 43.Kf2 Qc2 44.Qc2 bc2+–) 41...Ng4? (better 41...ef4 42.gf4 Qd3+–) 42.Bg4+– hg4 (42...Qe4 43.Kg1 (43.fe5?? hg4 44.Qd2 Kg7–+; 43.Qe5 Qe5 44.fe5 b2+–; 43.Qb3?! hg4 44.Kf2 gf3 45.Qf3 Qd4 46.Qe3 Qb2 47.Kf1 Qb5 48.Kg2 Qb7 49.Kh3 ef4 50.gf4 Kg7+–) 43...Qe3 44.Kh1+–) 43.Ne5 Qe4 44.Kg1 (44.Kf2 Qc2 45.Qc2 bc2+–) 44...Qe3?? (better 44...Qe1 45.Kg2 Qe4 46.Kf2 Qc2 47.Qc2 bc2+–) 45.Kf1+– Qd4 (45...Kh7+–) 46.Ng4 (46.Qd4 Kh7 47.Qd3 Kh8 48.Qg6 b2 49.Nf7) 46...Kh5 47.Qd4 b2 (47...g5 48.Qd5 Kg6 49.Ne5 Kh6 50.Qf7 gf4 51.Qg6) 48.Qb2 (48.Qe5 Kg4 49.Qe6 Kf3 50.Qe2) 48...Kg4 (48...g5 49.Ne5 gf4 50.Qc2 fg3 51.Qf5 Kh4 52.Qg4) 49.Kg2 e6 (49...g5 50.Qe5 gf4 51.h3) 50.a4 (50.h3 Kf5 51.Qe5) 50...g5 51.fg5 (51.Qf6 gf4 52.Qg6) 51...Kg5 52.h3 (52.Qg7 Kf5 53.Kf3 e5 54.Qf7 Kg5 55.h4 Kh6 56.g4 e4 57.Kf4 e3 58.g5) 52...e5 53.Qe5 (53.Qe5 Kg6 54.a5 Kh7 55.a6 Kg6 56.a7 Kh7 57.Qf5 Kg7 58.a8Q Kh6 59.Qaf8) 1–0. alessandrocarvalhaes (1825) – Baneban (1870), lichess.org, 2019.

4.Bf6 ef6+= 5.d4 Bg7 (5...d6 6.cd6 Bd6 7.Nd2+–) 6.e3 0–0 7.Nf3 d6 8.cd6 Qd6 9.Nbd2 Qd8 (9...Rd8 10.c4+–) 10.Be2 (10.c4 Re8+–) 10...Nc6 (10...Re8 11.0–0+–) 11.0–0 Bf5 (11...Re8 12.Qe1+–) 12.c4+– Rc8 13.Rc1 (13.d5 Na5+–) 13...b6 14.c5 bc5 15.Rc5 Ne7 16.Rc8 Qc8 (16...Nc8 17.e4 Be6 18.Qa4+–) 17.Qb3 (17.Qa4 Qb7+–) 17...Be6 18.Qa3 a6?? (better 18...Qd7+–) 19.Qe7 Ba2 20.Qa3 (20.Ra1 Re8 21.Ba6 Bd5+–) 20...Be6 (20...Bd5 21.Qa6 f5 22.Rb1+–) 21.Qa6 Qc2 (21...f5 22.Rb1+–) 22.Qd3 (22.Bc4 Re8+–) 22...Qa4 (22...Rc8 23.Ne4+–) 23.d5 (23.Ne4 Ra8+–) 23...Rd8 24.e4 (worse 24.de6 Rd3 25.Bd3 fe6+–) 24...Bg4 (24...Qe8 25.Qe3 Bg4 26.Bc4+–) 25.h3 Bd7 (25...Bc8 26.Nc4+–) 26.Qc4 (26.Qa6 Qb4+–) 26...Qa7 27.Nd4 (27.Qb4!? Bc8+–) 27...f5 28.Nc6 Bc6 29.dc6 fe4 (29...Qc7 30.Nf3 Rd6 31.ef5 Rc6 32.Qe4+–) 30.Ne4 Re8 (30...Qc7 31.Rb1 Rd4 32.Qc2+–) 31.Bg4 (better 31.Nd6 Rf8 32.c7+–) 31...Qe7 (31...Qc7+–) 32.c7 1–0. FeegLood (2760) – Redline1A (1960), lichess.org, 2017.

2.Nf3 cb4

3.a3 b3 4.e4= bc2 5.Qc2 Nc6 6.d4 e6 7.d5 ed5 8.ed5 Na5 (8...Qa5 9.Qd2 Qd2 10.Bd2+=) 9.Be2 (9.Bd3 Nf6+=) 9...Nf6+= 10.Nc3 (10.0–0 Be7 11.Nc3 0–0=) 10...a6 (10...Bc5 11.0–0 h6 12.Bf4=) 11.0–0 Be7 12.Bd2 (12.Bf4!? d6 13.Rfb1+=) 12...0–0= 13.Rfe1 d6 14.Nd4 Re8 15.Bd3 g6 16.h3 (16.f3 Bd7 17.Rac1 b5–/+) 16...Bd7=+ 17.Re3 (17.Qb2 Rc8–/+) 17...Rc8 18.Qa2 b5 19.Rae1 Nc4 20.Bc4 Rc4 21.Nc6 (21.Nf3 Bf8 22.Re8 Ne8–/+) 21...Bc6 22.dc6 d5 23.Rd3 (23.Re5 Qd6–/+) 23...Rc6 (23...Bd6 24.Kf1–+) 24.Nd5 Nd5 25.Rd5 Rd6 26.Rd6 Bd6 (worse 26...Qd6 27.Bb4 Qc7 28.Qe2 Bb4 29.Qe8 Bf8 30.g3+=) 27.Re8 Qe8 28.Qd5 Ba3 29.Bc3 Qe6?? (better 29...Be7 30.Qe5 f6 31.Qe6 Qf7 32.Qc8 Kg7–+) 30.Qd4 (better 30.Qd8 Bf8 31.Bb4+–) 30...f6!–+ 31.g4 (31.Qf6 Qf6 Combination) 31...Kf7 (31...Bd6 32.Qd2–+) 32.g5 (32.Qa7 Be7 33.Bb4 Qe4 34.Be7 Qe7 35.Qa6 b4–+) 32...Be7 33.h4? (33.Qh4 Kg7–+) 33...fg5 (33...Qc4!? 34.Qc4 bc4 35.f4–+) 34.hg5 (34.Qg7 Ke8 35.hg5 Qg4 36.Kf1 Qg5 37.Qh7 Qc1 38.Be1 Qc4 39.Kg1 Qd3–+) 34...Bg5 (34...Qf5 35.Qg7 Ke6 36.Qh7 Qg4 37.Kf1 Qc4 38.Kg2 Qc6 39.f3 Qc3 40.Qg6 Kd7 41.Qf5 Kd6 42.f4 Qd2 43.Kg3 Qe3 44.Kh2–+) 35.Qg7 Ke8 36.Qh8 (36.Qh7 Be7 37.Qh8 Kd7 38.Qd4 Kc6–+) 36...Kd7 37.Qh7 Be7 38.Kg2 (38.Qg7 Qg4 39.Kf1 b4–+) 38...b4! 39.Bd2 (39.Bb4 Qg4 Double attack (39...Qg4 Decoy)) 39...b3 (better 39...Qd5!? 40.Kf1 Qd2 41.Qh3 Kd8 42.Qh8 Kc7 43.Qg7 Qd3 44.Kg1–+) 40.Kf3 (40.Bc1–+) 40...b2 (40...b2 41.Bb4 Qb3 42.Ke2 Qb4 43.Qh3 Ke8 44.Qh8 Bf8 45.Qe5 Qe7 46.f4 b1Q 47.Ke3 Qe1 48.Kd3 Q7e5 49.fe5 Qe5 50.Kd2 Qd4 51.Ke2 Qe4 52.Kf2 Bc5 53.Kg3 Qe2 54.Kf4 Bd6 55.Kg5 Kf7 56.Kh4 Qh5) 0–1. Coronel,Miguel Angel (1610) – Petrich,Pedro (1885), IRT Championship Entrerriano Promociona, 2016. (=1.Nf3 c5 2.b4 cb4)

3.a3 Nf6 4.ab4 d6 5.Nd4 h5 6.h4 Rh6 7.Nb3 Qd7 8.e4 0–1. Buecker,Stefan (2345) – Drazic,Sinisa (2310), Dortmunder Schachtage–C, 1990. (=1.Nf3 c5 2.b4)

3.c3 e6 4.d4 Nf6 5.Bb2 (5.Bf4 Nd5 6.Bd2 bc3 7.Nc3 Nc3 8.Bc3 d5–/+) 5...d5–/+ 6.e3 Bd6 7.Bb5 Bd7 8.Bd3 Qc7 (8...Nc6 9.0–0–/+) 9.0–0 Nc6 10.Nbd2 bc3 11.Bc3 0–0 12.e4 de4 13.Ne4 Ne4 14.Be4 f5 15.Bd3 Nb4 (15...Rac8 16.Rc1–/+) 16.Bb4 Bb4 17.Rc1 (17.Qb3 Qc3=+) 17...Qd6–/+ 18.Ng5 Ba3 (18...Qd4 19.Bf5 Bc5 20.Qd4 (20.Be6?! Be6 21.Ne6 Qd1 22.Rcd1 Rf5+/–; 20.Ne6?! Qd1 21.Rcd1 Be6 22.Be6 Kh8=) 20...Bd4 21.Be6 Be6 22.Ne6+/–) 19.Rb1 b6 (19...Qd4?! 20.Bf5 Qd1 A) 21.Rbd1? Rf5 (21...ef5?! 22.Rd7 Rfe8 23.Rb7=+) 22.Rd7 Rg5–+; B) 21.Bh7 Kh8 22.Rfd1+=) 20.Qh5 h6 21.Nf3 Bc6 22.Bc4 Rac8 23.Bb3 (23.Ne5 Bd5 24.Qe2 Rc7–/+) 23...Be4 24.Rbd1 Bc2 (24...Bb2 25.Nd2 Bd5 26.Bd5 Qd5 27.Nb3–/+) 25.Bc2 Rc2 26.Ne5 Ra2 27.Qf3 Rc8 28.Qh5 Qe7 29.d5 Bc5–+ 30.Kh1 ed5 31.Qf5 Rf8 32.Qh5 Qe6 33.Nf3 Rf5 34.Qh4 a5 35.Nd4 Bd4 36.Qd4 Qf6 37.Qf6 Rf6 38.Rd5 Raf2 39.Rf2 Rf2 40.Kg1 Rb2 41.Rf5 b5 (42.Kf1 a4–+) 0–1. Gerloff – Bendig,Frank, corr, 1988.

3.d4 d5 4.Bb2 Nf6 5.Nbd2 Bg4 6.e3 (6.Ne5 Bh5–/+) 6...e6 7.Bb5 Nbd7 8.0–0 a5 (8...Qc7 9.h3 Bf5 10.Bd3–/+) 9.h3 Bf5 10.Re1 (10.Nh4 Bg6+=) 10...Bd6–/+ 11.Ne5 0–0 12.Bd7 (12.Qe2 Nb6–/+) 12...Nd7 13.Ndf3 (13.e4 de4 14.Ne4 Be4 15.Re4 Nf6–/+) 13...Qc7 14.Rc1 Ne5 (14...Be5 15.de5 Qc4 16.c3 Qa2 17.Re2 bc3 18.Rc3–+) 15.de5 Be7 16.Nd4 (16.Qd4 b5–+ (16...Bc2?! 17.Re2+=)) 16...Qe5 17.Rb1 (17.Qh5 Rfe8–+) 17...Bd6 (17...Rac8 18.Qh5 Bd6 19.Nf5 Qf5 20.Qf5 ef5 21.Re2–+) 18.f4 (18.Nf5 Qf5 19.e4 Qg5–+) 18...Qf6 (better is 18...Qe4–+) 19.Nb5–/+ e5 20.Nd6 (better is 20.Qd5!? Bb8 21.Be5 Be5 22.Qe5 Qe5 23.fe5–/+) 20...Qd6–+ 21.Be5 Qg6 22.Rc1 (22.Qd5 Rad8 23.Qf3 Bc2–+) 22...Bh3 (22...Rfd8 23.Kh2–+) 23.Qf3 (23.Qd5 Be6 24.Qb7 Ba2–+) 23...Bg4 (23...Be6 24.Rf1 Qf5 25.c3–+) 24.Qd5 Bh3 (better is 24...Rad8!? 25.Qb7 Rd2–+) 25.Qb7 Rad8 26.Re2 (26.Qf3 Bg4 27.Qf2 Rd7–/+) 26...Qg4 (26...Bg4 27.Rf2 Rd7+=) 27.Rf2 (27.Qb5 Rfe8+=) 27...Qg3 (27...Rfe8 28.Bd4+=) 28.Qf3 Qf3 29.Rf3 (29.gf3 Be6+=) 29...Bg4 (29...Be6 30.Bd4+=) 30.Rg3 h5 31.f5 (31.Bc7 Rd5+=) 31...f6 (31...Rd2 32.Bc7 Ra8 33.f6–+) 32.Bd4 (32.Bc7 Ra8 (32...Bf5?! 33.Bd8 Rd8 34.c4+=) 33.c4 Rfc8–+) 32...Rd5 33.Bb6 (33.c4 bc3 34.Rc3 Bf5–/+) 33...Bf5–+ 34.c4 Rc8 (34...bc3 35.Rc3 Rb8 36.Bd4–+) 35.cd5 (35.c5 a4–+) 35...Rc1–+ 36.Kh2 Rc2 37.Ba5 Ra2 38.Bb4 Bg4?? (38...h4 39.Rf3 Be4–/+) 39.e4 (39.d6 Bd7=) 39...Re2 40.d6 (40.Ra3 Re4 41.Ra8 Kh7+=) 40...Re4+= 41.Ba3 Kf7 42.Rd3 Bd7 43.Kg3 Ke6 44.Kf3 Re5 45.Bb2 (45.Rc3 g5–/+) 45...Rd5 (45...Bc6 46.Kf2 Rf5 47.Ke1–+) 46.Rd5–/+ Kd5 47.Ba3 Ke5 48.Kg3 g5 49.Bb2 Ke6 (worse is 49...Kd6 50.Bf6 g4 51.Kf4+=) 50.Ba3 Ke5 (50...f5 51.Kf2–+) 51.Bb2 Kd6 (51...Kf5 52.Kh2–/+) 52.Bf6+= g4 ½–½. overtoom – bestseafood, gameknot.com, 2014. (=1.Nf3 c5 2.b4 cb4)

3.a3 ba3

4.Ba3 d5 5.e3 Nc6 6.Nc3 Nf6 7.Qb1 g6 8.Bb5 Bd7 9.Ba4 Rb8 10.Bc5 Bg7 11.Ba7 Na7 12.Bd7 Nd7 (12...Kd7 13.Ra7 Ke8 14.Rb7 Rb7 15.Qb7+/–; 12...Qd7?! 13.Ra7 0–0 14.Qb3=) 13.Ra7 Bc3 14.dc3 Qc7 15.Qb4 0–0 16.0–0 (worse is 16.Qe7 Qc3 17.Kf1 Nb6–/+) 16...Nc5 17.Rfa1 Rfc8 (17...Ne4 18.c4 dc4 19.R7a5+=) 18.Qd4 (18.c4 Rd8+=) 18...Ne4 19.R1a3 (better is 19.Qd5!? Nc3 20.Qg5=) 19...Nc3–/+ 20.Qd3 e6 21.h4 Ne4 22.Ne1 Qe7 23.Nf3 Qc5 24.c3? (better is 24.Ra2!?–/+) 24...Nc3–+ 25.h5? (better is 25.Ra1–+) 25...Nb5 (25...gh5?! 26.Ng5 Ne4 27.Ne4 de4 28.Qe4 Qc1 29.Kh2–/+) 26.hg6 hg6 27.R7a5 Qc1 28.Kh2 Na3 29.Ra3 Qc4 30.Qb1 Qc2 31.Qb4 (31.Qc2 Rc2 32.Kg3 b5–+) 31...Qf2 32.Qd4 (32.Ng5 Rc2 33.Qg4 Kg7–+) 32...Rc2 (better is 32...Rc4 33.Qd2 Rh4 34.Nh4 Qd2 35.Nf3–+) 33.Qg4 Kg7 34.Ng5 Rh8 35.Nh3 Rc4 (35...Rh3!? 36.Qh3 Rc8 37.Rb3–+) 36.Qg5 f6 (36...f6 37.Qg3 Qg3 38.Kg3 Rhc8–+) 0–1. Mestrovic,M (2040) – Solic,K (2245), Split CRO, Open, 2011. (=1.Nf3 c5 2.b4)

4.Ba3 Nf6 5.Nc3 d5 6.e3 a6 7.h3 g6 8.d4 Bg7 9.Bd3 0–0 10.0–0 b5 11.Ne2 Nc6 12.c3 Na5 (12...Qc7 13.Bc5 Nd7 14.Bb4–/+) 13.Ne5 (13.Be7 Qe7 14.Ra5 Bb7=) 13...Qc7 (13...Re8 14.Ng3–/+) 14.Qc2 (better 14.Be7!? Re8 15.Bf6 Bf6 16.Nf4=+) 14...Nc4 15.Bc5? (15.Bc4 dc4 16.e4–/+) 15...Nd7?? (better 15...Ne5 16.de5 Qc5 17.ef6 Bf6–+) 16.Nd7 (16.Be7 Re8 17.Nd7 Bd7=+) 16...Qd7–/+ 17.e4 de4 18.Be4 Rb8 (18...Bb7 19.Ng3–/+) 19.Nf4 Re8 20.Nd5 e5 (20...Bb7 21.Ne7 Kh8 22.Bb7 Rb7 23.Ra6 Re7 24.Be7 Qe7 25.Rfa1=+) 21.Rad1 (21.Nb4 ed4 22.Bc6 Qc7 23.cd4 Bd7 24.Ra6 Bc6 25.Nc6 Rb7=) 21...ed4 (21...f5 22.de5 Qf7 23.Nf6 Bf6 24.Bd5–/+) 22.Bd4 Nd6 23.Bf3 Bd4 24.Rd4 Re6 25.Nf4 Re5? (25...Rf6=) 26.Nd3?? (better 26.Qd2 Rb6 27.Rd1+–) 26...Re7 27.Rd1 Qc7 28.Nb4 Nf5 (28...Re6=) 29.R4d3 (better 29.Rd8!? Kg7 30.Nc6+=) 29...Bb7=+ 30.Bb7 Qb7 (worse 30...Rb7 31.Nd5 (31.Na6?! Qc4=) 31...Qc4 32.g4+–) 31.Nd5 Re6 32.Nf4 Rc6 33.Ne2 b4 (33...Re8 34.Nf4–/+) 34.Qb2 (34.Qb3 Qe7 35.Nf4=+) 34...a5 (better 34...bc3 35.Qb7 Rb7 36.Nc3 Rb3–/+) 35.cb4= Qc7? (35...Re8 36.Rd8 Rc8 37.Rc8 Rc8 38.b5=) 36.b5 (better 36.Rd7!? Qc8 37.Qa2+–) 36...Rc2= 37.Rd7?? (better 37.Rd8! Rd8 38.Rd8 Qd8 39.Qc2=) 37...Rb2–+ 38.Rc7 Re2 39.Rb1 Kg7 40.b6 Re7 41.g4 (41.Re7 Ne7 42.b7–+) 41...Rb6! 42.Rb6 Rc7 43.gf5 Ra7 44.fg6 hg6 45.Rb3 a4 46.Ra3 Kf6 47.Kf1 Ke5 48.Ke2 Kd4 49.Kd2 Kc4 50.Kc2 Kb4 51.Kb2 Re7 52.Rf3 Re2 53.Kc1 f5 54.Kb1 a3 55.Ka1 (55.h4 Rb2 56.Ka1 Rc2–+) 55...Rc2 56.Kb1 (56.Rg3–+) 56...Rc3 57.Rg3 Rg3 58.fg3 Kb3 59.h4 Kc3 (59...a2 60.Kc1 a1Q 61.Kd2 Qc3 62.Ke2 Qg3 63.h5 f4 64.hg6 Qe3 65.Kf1 f3 66.g7 Qe2 67.Kg1 Qg2) 60.Ka2–+ Kd3 61.Ka3 Ke3 62.Kb2 Kf3 0–1. shakattack (2065) – bobby fissure (2175), ChessWorld.net, 2020. (=1.Nf3 c5 2.b4 cb4)

4.Ba3 Nf6 5.e3 d5 +=.

4.Ba3 Nf6 5.g3 g6 6.Bg2 Bg7 7.0–0 0–0 (7...d5 8.c4–/+) 8.d4 (8.c4 d6–/+) 8...d5 9.Nbd2 (9.Ne5 Nc6–/+) 9...b5 (9...Qc7 10.Ne5–/+) 10.Ne5 Bb7 (10...a5 11.c3–/+) 11.c4 (11.Nb3 a5–/+) 11...bc4 (11...Nc6 12.Bc5–/+) 12.Ndc4+= Ne4 (12...dc4 Exploits the pin 13.Bb7) 13.Qb1 Bc6 (13...dc4 14.Qb7 Nc3 15.Be7 (15.Qa8?! Qd4 16.Be7 Qe5 17.Bf8 Bf8+–) 15...Ne2 16.Kh1 Qd4 17.Bf8 (worse is 17.Qa8 Qe5 18.Bf8 Bf8+–) 17...Be5 18.Rad1+–) 14.e3 (14.Be4 de4 15.Bc5 Bd5+=) 14...Be5–/+ (worse is 14...dc4 15.Nc6 Nc6 16.Qe4+/–) 15.de5 (15.Ne5 Nd2 16.Qc2 Nf1 17.Rf1 Bb5+=) 15...Nc3 (15...Ng3!? 16.hg3 dc4 17.Bc6 Nc6–/+) 16.Qd3–/+ dc4 17.Qc3 Bg2 18.Kg2 Qd5 19.Kg1 Nc6 20.Rfd1 Qe5 21.Qc4 Rfc8 22.Qa6 Qe6 23.Bb2 Rab8 24.Rd2 Rb6 25.Qe2 Rcb8 26.Ra6? f6 27.Rb6–/+ Rb6 28.Kg2 Kf7 29.h4 h5 30.Ba3 Ne5 31.f3 Nc4 32.Rd3 Rb1 33.Bc5?? Rb2–+ (33...Rb2 34.Qb2 Nb2–+) 0–1. Deutsch (2210) – Bachmayer (2080), Feldbach, 1997. (=1.Nf3 c5 2.b4)

4.Ba3 Nf6 5.g3 g6 6.Bg2 Bg7 7.c4 Qb6 8.0–0 d6 9.Nc3 Nc6 10.Qa4 0–0 11.c5 dc5 12.Rab1 Nb4 13.d4 (13.Bb4 cb4) 13...a5 (13...Qc6!?–/+) 14.dc5+= Qc6 15.Bb4 Qa4 16.Na4 ab4 17.Nb6 Ra5 18.Rb4 Rc5 19.Nc8 Rfc8 20.Rb7 R5c7 21.Rc7 Rc7 ½–½. roy1nc6 (1875) – reddragon1917 (1615), gameknot.com, 2012. (=1.Nf3 c5 2.b4 cb4+= 3.a3 ba3)

4.Na3 Nf6 5.g3 g6 6.Bb2 Bg7 7.Bg2 0–0 8.0–0 d5 9.d4 Nc6 10.Ne5 Bf5 11.c4 Qb6 12.Bc3 Ne4 13.Be4 de4 (13...Be4 14.Nd7 Qd8 15.Nf8 Kf8 16.f3+–) 14.c5 Qd8 15.Nc6 bc6 16.Nc4 Bh3 17.Re1 Be6 18.Ra4 h5 19.Qa1 h4 20.Ne5 Qd5 21.Ra7 Rab8 22.Qa4 hg3 23.hg3 Rb3?? (better is 23...Be5 24.de5 Qc5+=) 24.Nc6+/– Qg5 25.Ne7 (better is 25.Qa1!?+/–) 25...Kh7= 26.Qa5 e3 27.c6?? (27.Kg2 ef2 28.Rh1 Bh6 29.Rh6 Qh6 30.Kf2 Qh2 31.Ke3 Bc4–+) 27...Rb5?? (better is 27...Qg4 28.Nd5 Bd5 29.Qd5 Rc3–+) 28.Qc7+= Rb3 29.Qa5?? (29.Ba1 Re8 30.Qf4=) 29...Qg4–+ 30.Rc1 Qe2 31.Be1 Bd4 (31...Bd4 32.Qh5 gh5 33.Rc3 ef2 34.Bf2 Qf2 35.Kh1 Qg1) 0–1. Dani,Peter (2185) – Herman,Tamas (2250), HUN–chT2 Barcza, 2006. (=1.Nf3 c5 2.b4 cb4 3.a3 ba3)

4.c4 Nf6 5.Nc3 d5 6.cd5 Nd5 7.Nd5 Qd5 8.Ba3 Nc6 9.Qb1 e5 (9...f5 10.e3–/+) 10.e4=+ Qe6 11.Bf8 Kf8 (11...Rf8 12.Bb5=+) 12.Bb5 Qe7 (12...Qd6 13.Bc6 bc6 14.Ra5=+) 13.Bc6= bc6 14.d4 (14.Qc2!?=) 14...ed4=+ 15.Nd4 c5 16.Ne2 Bb7 17.Nc3 (17.f3 h5=+) 17...h5 18.0–0 Rh6 (18...h4 19.h3=+) 19.Qc2 Rb6 (19...h4 20.Rfd1=+) 20.Rfd1 (20.Nd5 Bd5 21.ed5 a5=) 20...g6 (20...h4 21.Nd5 Bd5 22.ed5=) 21.f3 Kg8 22.Ra5 Bc6 (22...c4 23.Qa4=) 23.Qf2 The isolani on c5 becomes a target 23...Rd8 24.Rd8 Qd8 25.Rc5 Rb1 26.Nb1 Qd1 27.Qf1 Qd4 28.Qf2 Qd1 29.Qf1 ½–½. Hillarp Persson,T (2530) – Teplyi,I (2410), 56th TCh–DEN Ex (8), 2018. (=1.Nf3 c5 2.b4 cb4 3.a3 ba3)

3.a3 e6

4.Bb2 Nf6 5.g3 Nc6 6.Bg2 d5 7.0–0 Be7 8.d3 0–0 9.Qc1 Qc7 10.ab4 Nb4 11.c4 Nc6 12.Na3 dc4 13.Nc4 Bd7 14.Nce5 Rfc8 15.Qf4 Bd6 16.Rfc1 Be8 17.Qg5 h6 18.Qd2 Qe7 (worse is 18...Ne5 19.Rc7 Nf3 20.Bf3 (20.ef3?! Rc7 21.Bf6 gf6+/–) 20...Rc7 21.Bf6 gf6 22.Qh6+–; 18...Be5?! 19.Ne5 Nd5 20.Bd4=) 19.Nc4 Bb4 20.Qd1 Nd5 21.e4 Nf6 22.Qe2 b5 23.Ne3 Rc7 24.Nc2 Bc5 25.d4 Bb6 26.Na3 Na5 (26...Nd4!? 27.Nd4 Rc1 28.Rc1 Bd4 29.Bd4 Qa3+=) 27.Nb5 Rc1 28.Rc1 Qb4 29.Nc7 Bc7 30.Rc7 Bb5 31.Qc2 Ba4 32.Qc3 Rb8? (better is 32...Qc3 33.Bc3 Nc6+=) 33.Rc8+– Kh7 34.Rb8 Qb8 35.Qa5 Qb2 36.Qa4 Ne4 37.Qd1 Qf2 38.Kh1 Qe3 39.Qb1 f5 ½–½. Lenart,Endre (2115) – Percze,Janos (2225), HUN–chT2 Asztalos, 2006. (=1.Nf3 c5 2.b4 cb4 3.a3 e6)

4.ab4 Bb4 5.c3 Be7 6.e4 Nc6 7.d4 d5 8.Nbd2 +=.

4.ab4 Bb4 5.c3 Be7 6.e4 d6 7.d4 Nf6 8.Bd3 0–0 9.0–0 Qc7 (9...Nc6 10.h3+=) 10.e5 (10.Bf4 Bd7 11.e5 Nd5 12.ed6 Bd6 13.Bd6 Qd6=) 10...Nd5 (10...de5 11.Ne5 Nc6 12.Na3+=) 11.Qc2 (11.Na3 Nc3 12.Qc2 de5 13.Ne5 Nd7=) 11...h6 (11...de5 12.Ne5 g6 13.Bd2+=) 12.Re1 (12.ed6 Bd6 13.Bd2 Qe7=) 12...Nd7 (12...de5 13.Ne5 Nc6 14.Ba3+=) 13.Bd2 (better is 13.ed6!? Bd6 14.Ba3=) 13...de5–/+ 14.de5 Nc5 15.Nd4 (15.Be2 Qb6–/+) 15...Bd7 16.f4 (16.Na3 a6–/+) 16...Qb6 (16...a5 17.Bc4–+) 17.Na3 Ba4 18.Qb1 Qb1 19.Bb1 (19.Nb1?? Nd3 20.Ra4 Ne1 21.Be1 Nf4–+) 19...Nb3 (19...Rfd8!? 20.Nc4–+) 20.Nb3–/+ Bb3 21.Nb5 (21.Be4 Bc5 22.Kh1 a5–/+) 21...a6 22.Nd4 Bc4 23.Kh1 Rac8 (23...Bc5 24.f5 ef5 25.Bf5–/+) 24.Be4 Rfd8 25.Reb1 (25.f5 ef5 26.Bf5 Rc5–/+) 25...b5 (better is 25...Bc5–/+) 26.Bd5? (26.f5!?–/+) 26...Rd5 (26...Bd5 27.Rc1–+) 27.Nf3? (27.Ra6!? b4 28.Rb6–+) 27...Be2 28.Be1 Ra8 29.Nd4 Bc4 30.Nc6 Bc5 31.Nb4 Rd7 32.Ra6 Ra6 33.Na6 Be3 34.Bg3 Rd3 35.h3? Rc3 36.Nb4 Bc5 37.Kh2 Bb4 38.Rb4–/+ Rc2 39.Kg1 Bd5 40.Bf2 Bc4 41.Rb1 Bd3 42.Rb3+= Bc4 43.Rb1 Re2 44.g3 Rd2 45.Be3 Ra2 46.Bc5 Bd5–/+ 47.Rb5 Rg2–+ 48.Kf1 Rg3 49.Rb8 Kh7 50.Ke2 Rh3 51.Be3 Rg3 52.Rb1 h5 53.Rg1 Rh3 54.Bf2 h4 0–1. Lemke,Berfin (1725) – Kluge,Leyla (1790), Magdeburg GER, Ch U16 (g), 2014. (=1.Nf3 c5 2.b4 cb4+= 3.a3 e6)

4.ab4 Bb4 5.c3 Be7 6.e4 d6 7.d4 Nf6 8.Bd3 Nbd7 9.Nbd2 b6 10.0–0 0–0 11.Re1 e5 12.Ba3 Re8 13.Qb3 h6 14.Nh4 Nf8 15.Nf5 Ng6 16.g3 Qc7 17.Nc4 Rd8 18.Nce3 Bb7 19.d5 Bf8 20.c4 Bc8 21.Bb4 Ne7 22.Ra2 Nf5 23.Nf5 g6 24.Ne3 Ng4 25.Bd2 Rb8 0–1. Startsev,Vladimir (2245) – Okun,Evgeny (2005), Voronezh op–B, 2007. (=1.Nf3 c5 2.b4 cb4 3.a3 e6)

4.ab4 Bb4 5.c3 Be7 6.e4 Nf6 7.e5 Nd5 8.d4 (8.Ba3 a6+=) 8...d6 (8...b6 9.Nfd2+=) 9.Bd3 (9.Ba3 de5 10.Be7 Ne7 (10...Ke7?! 11.de5 Nc6 12.Qc2+=) 11.Ne5 0–0+=) 9...Nd7 (9...a5 10.ed6 Qd6 11.Ba3+=) 10.ed6 Bd6 11.0–0 (11.c4 Ne7+=) 11...Qc7 (11...a5 12.Bg5 Ne7 13.Be7 Qe7 14.g3+=) 12.Qb3 (12.c4 N5f6+=) 12...b6 13.c4 Nf4 (13...Nb4 14.Nc3 Bb7 15.Be4 Be4 16.Ne4=) 14.Be4 White threatens to win material: Be4xa8 14...Bb7 Black threatens to win material: Bb7xe4 15.Re1 Be4 16.Re4 0–0 17.g3 (17.Bf4 Bf4 18.g3 Bd6–/+) 17...Ng6 18.Bb2 (18.Nc3 Qb7–/+) 18...Rfc8 19.Nbd2 (19.Nfd2 a5–/+) 19...e5 (19...a5 20.Ba3–/+) 20.Qc3 (20.Rd1 ed4 21.Bd4 a5–/+) 20...f6 21.h4 ed4–/+ 22.Nd4 Nc5 23.h5 Ne5 24.Nb5 Qc6 25.Rd4 Bb8 26.Rd5 Ne6 27.Qe3?? another step towards the grave 27...Nc4–+ 28.Nc4 Qd5 29.Nb6 Bf4 30.Nd5+– Be3 31.Ne7 Kf8 32.Nc8 Bc5 33.Nca7 Ng5 34.Ba3 Nf3 35.Kg2 Ba3 36.Ra3 Ne1 37.Kf1 Nc2 38.Ra4 1–0. Gueting,Jens – Remmler,Hans Peter (2200), Baden VLN, 2002. (=1.Nf3 c5 2.b4)

4.g3 Nf6 5.Bg2 Nc6 6.0–0 Be7 7.ab4 Nb4 8.Ba3 0–0 9.d3 d5 10.Nbd2 Nc6 11.c4 Ba3 12.Ra3 Qe7 13.Qa1 Rd8 14.Rb1 e5 15.cd5 Nd5 16.Nc4 f6 17.Ne1 Be6 18.Nc2 Rac8 19.Qb2 b6 20.Rba1 Rd7 21.N4e3 Ne3 22.fe3 Na5 23.Rc3 Rc3 24.Qc3 Rc7 25.Qb4 Kf8 26.Qe7 Ke7 27.Nb4 Kd6 28.Rd1 Nb3 29.d4 ed4 30.ed4 Rc1 31.Rc1 Nc1 32.Kf2 a5 33.Nc2 Bd5 34.e4–/+ Be6 35.Na3 Bd7 36.Bf1 Na2 37.Ke3 Nc3 38.Bd3 g6 39.Bc4 b5–+ 40.Bg8 h6 41.Bh7 Be8 42.Bg8 Bc6 43.d5 Be8 44.Kd4 Ne2 45.Ke3 Nc1 46.Be6 Nb3 0–1. McKay,Roderick M (2330) – Silva,Fernando (2290), Nice ol (Men) fin–B, 1974. (=1.Nf3 c5 2.b4)

3.Bb2 d5

4.d3 e6 5.Nbd2 Nf6 6.e4 Be7 7.Be2 0–0 8.0–0 Nc6 9.Nb3 (9.e5 Ng4–/+) 9...b6 (better 9...de4!? 10.de4 Ne4–+) 10.e5–/+ Nd7 11.a3 (11.d4 a5–/+) 11...f6 (better 11...ba3!? 12.Ba3 Ba3 13.Ra3 Nde5 14.Ne5 Ne5–+) 12.ef6–/+ Bf6 13.Bf6 Qf6 14.ab4 Nb4 15.Qd2 Nc6 16.d4 a6 17.Bd3 (17.Bb5 Bb7 18.Bc6 Bc6–/+) 17...e5–/+ 18.de5 Nde5 19.Ne5 Ne5 20.Be2 Bb7 21.Qe3 Rac8 (better 21...Nc4!? 22.Qd3 Rae8–/+) 22.Qb6?? (better 22.Ba6 Ba6 23.Ra6 Rc2 24.Rb6=+) 22…Qb6–+ (22...Qb6 23.Bd1 d4–+) 0–1. gbsrao – jjrizzo, net–chess.com, 2020. (=1.Nf3 c5 2.b4 cb4)

4.g3 Nc6–/+ 5.Bg2 e6 6.d3 Nf6 7.Nbd2 Bd6 8.e4 e5 9.ed5 Nd5 10.Nc4 0–0 11.0–0 Re8 12.h4 Bg4–+ 13.Qd2 f6 14.Nh2 Be6 15.Ne3 Nde7 16.g4 Qc7 17.Be4 Nd4 18.Rfc1 Qd7 19.Qd1 f5 20.gf5 Ndf5 21.Qh5 Rf8 22.Kh1 Bf7 23.Bf5? Nf5–+ 24.Qf5 Bd5!! 25.Qe4 Be4 26.de4 Rf2 27.Neg4 Rd2 28.Rg1 Qe6 29.Raf1 Rf8 30.Bc1 Rf1 31.Nf1 Rc2 32.Nfe3 Bc5 33.Rd1 Rc1! 34.Rc1 0–1. Holubowicz,Kazimierz – Pivovarov,Juraj, 26th Keres Mem, Vancouver BC CAN, 2001. (=1.Nf3 c5 2.b4)

Play 1.b4 at Chessworld.net!

The home of Email Chess on the web!

Chessworld.net on behalf of Marek have set up a continuous stream of 1.b4 tournaments.

These tournaments should always be available to join. As soon as four players are paired, another one will automatically be set up.

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

Click on the logo below, visit Chessworld.net, register and play 1.b4 against the whole world!

The home of Email Chess on the web!

The home of Email Chess on the web!