[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[Opening "Mieses opening"]

1. d3 d5 2. d4 e5 3. e4 Bg4 4. dxe5 (4. Bg5) (4. Qxg4) 4... Bb4+ 5. c3 (5. Nc3) (
5. Nd2) (5. Bd2) *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A00"]
[Opening "Kadas (Desprez) opening"]

1. h4 d5 2. Rh3 Bxh3 3. a4 (3. Nxh3) 3... e5 4. Ra3 Bxa3 5. h5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C20"]
[Opening "KP: Patzer opening"]

1. e4 e5 2. Qh5 g6 3. Qxe5+ Qe7 4. Qxh8 Qxe4+ 5. Ne2 Qxc2 6. Qxg8 Nc6 7. Na3 (
7. Qxh7) 7... Qa4 8. b3 (8. Qxh7) 8... Qb4 9. Nc2 (9. Nc4) 9... Qc5 (9... Qe4)
10. Ba3 Qxc2 11. Qxf8# *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B01"]
[Opening "Scandinavian (centre counter) defence"]

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qe6+ (3... Qa5) 4. Be2 Qg6 5. Bb5+ (5. Bf3)
5... c6 6. Ba4 (6. Bf1) 6... b5 (6... Qxg2) 7. Nxb5 (7. Bb3 Qxg2 8. Qf3)
7... Qxg2 8. Nc7+ (8. Qf3 Qxf3 9. Nxf3 cxb5 10. Bxb5+ Bd7) 8... Kd8 9. Nxa8 Qxh1
10. Kf1 Bh3+ 11. Ke1 (11. Ke2 Bg4+ 12. f3 Qg2+ 13. Kd3 Bf5+ 14. Kc3) 11... Qxg1+
12. Ke2 Bg4+ 13. f3 Bxf3+ 14. Kxf3 Qxd1+ *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C20"]
[Opening "KP: Patzer opening"]

1. e4 e5 2. Qh5 Nc6 3. Bc4 g6 4. Qf3 Nf6 5. Qb3 Nd4 6. Bxf7+ Ke7 7. Qc4 (
7. Qe6+) (7. Qb4+ Kxf7) 7... b5 8. Qc5+ Kxf7 9. Qc3 (9. Qxe5 Nxc2+ 10. Kd1 Nxa1)
9... Bb4 10. Qd3 (10. Qxb4 Nxc2+) 10... d5 11. exd5 Bf5 12. Qg3 (12. Qe3 Nxc2+)
12... Nh5 (12... Nxc2+) 13. Qxe5 (13. Qe3 Nxc2+) 13... Re8 14. Qxe8+ Qxe8+
15. Kd1 Bxc2# *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C20"]
[Opening "KP: Patzer opening"]

1. e4 e5 2. Qh5 Nf6 3. Qxe5+ Be7 4. Bc4 Nc6 5. Qf4 O-O 6. e5 (6. Nc3) 6... Nxe5 (
6... Ne8) (6... Nh5 7. Qf3 Nxe5 8. Qxh5 Nxc4) 7. Qxe5 d6 (7... d5 8. Be2 Bd6)
8. Qf4 Ng4 (8... d5 9. Be2 Bd6) 9. h4 (9. Nf3) 9... Ne5 (9... Bxh4 10. g3)
10. h5 (10. Nf3) 10... Nxc4 (10... Bg5 11. Qe4 Re8) 11. Qxc4 Be6 (11... d5)
12. Qc3 (12. Qa4) (12. Qb5) 12... Bf6 13. Qd3 (13. d4) 13... Re8 14. h6 (14. Ne2)
14... Bf5+ 15. Qe2 Rxe2+ 16. Nxe2 g6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C41"]
[Opening "Philidor's defence"]

1. e4 e5 2. Nf3 d6 3. Bc4 (3. d4) 3... Bg4 (3... Be7) 4. Nc3 (4. h3) (4. d4) (
4. c3) 4... h6 (4... Nc6) 5. Nxe5 Bxd1 (5... dxe5 6. Qxg4 Nf6 7. Qf3) 6. Bxf7+
Ke7 7. Nd5# *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C60"]
[Opening "Ruy Lopez (Spanish opening)"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C25"]
[Opening "Vienna game"]

1. e4 e5 2. Nc3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C23"]
[Opening "Bishop's opening"]

1. e4 e5 2. Bc4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C20"]
[Opening "KP: Lopez opening"]

1. e4 e5 2. c3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C22"]
[Opening "Centre game: Berger variation"]

1. e4 e5 2. d4 exd4 (2... d6 3. dxe5 dxe5 4. Qxd8+ Kxd8 5. Bc4) (2... Bd6
3. dxe5 Bxe5 4. Nf3 Bf6 5. e5 Be7 6. Bc4) (2... Nc6 3. dxe5 (3. d5) 3... Nxe5
4. Nf3 (4. Bf4) (4. f4) 4... Nxf3+ 5. Qxf3) 3. Qxd4 (3. c3 dxc3 4. Nxc3)
3... Nc6 4. Qe3 Nf6 5. Nc3 (5. e5 Nd5 (5... Ng4 6. Qe2 d6 7. exd6+ Be6 8. dxc7
Qxc7) 6. Qe4 Nb6) 5... Bb4 6. Bd2 O-O 7. O-O-O Re8 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C37"]
[Opening "KGA: Muzio gambit"]

1. e4 e5 2. f4 exf4 (2... Bc5) (2... d5) 3. Nf3 (3. Bc4) 3... g5 4. Bc4 (4. h4)
4... g4 5. O-O (5. Ne5 Qh4+ 6. Kf1 Nf6) 5... gxf3 6. Qxf3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C42"]
[Opening "Petrov: Cozio (Lasker) attack"]

1. e4 e5 2. Nf3 Nf6 3. Nxe5 (3. d4) 3... d6 4. Nf3 Nxe4 5. Qe2 Qe7 6. d3 Nf6
7. Bg5 Qxe2+ 8. Bxe2 Be7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C45"]
[Opening "Scotch: Mieses variation, main line"]

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 (4... Nxd4 5. Qxd4) 5. Nxc6 (5. Nc3
Bb4) 5... bxc6 6. e5 (6. Bd3 d5 7. exd5 cxd5) 6... Qe7 7. Qe2 Nd5 8. c4 Ba6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C50"]
[Opening "Giuoco Piano"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C59"]
[Opening "Two knights defence"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 (4. d3) (4. Nc3) 4... d5 (4... Bc5
5. Bxf7+ (5. Nxf7 Bxf2+ 6. Kxf2 Nxe4+ 7. Kg1 Qh4 8. g3 Nxg3) 5... Ke7 6. Bd5 Rf8
7. Nf3 d6 8. d3 Bg4) 5. exd5 Na5 (5... b5 6. Bxb5 Qxd5 7. Nc3 Qxg2 8. Qf3 Qxf3
9. Nxf3 Bd7 10. O-O Bd6 11. Bxc6 Bxc6 12. Nxe5 Bxe5 13. Re1) 6. Bb5+ c6 7. dxc6
bxc6 8. Be2 h6 9. Nf3 e4 10. Ne5 Qd4 11. f4 Bc5 12. Rf1 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C57"]
[Opening "Two knights defence: Fegatello attack, Polerio defence"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. Nxf7 Kxf7 7. Qf3+ Ke6
8. Nc3 Ne7 9. d4 c6 (9... exd4 10. Nxd5 Nxd5 11. Qe4+) *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C52"]
[Opening "Evans gambit: compromised defence, Paulsen variation"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 (4. O-O Nf6) (4. c3) (4. d4) 4... Bxb4
5. c3 Ba5 6. d4 exd4 (6... d6 7. Qb3 Qd7) 7. O-O dxc3 8. Qb3 Qf6 9. e5 (9. Bg5)
9... Qg6 (9... Nxe5 10. Re1) 10. Nxc3 Nge7 11. Ba3 O-O 12. Rad1 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C54"]
[Opening "Giuoco Piano"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Bd2 (7. Nc3
Nxe4 8. O-O Bxc3 9. d5 Bf6 10. Re1 Ne7 11. Rxe4 d6) 7... Bxd2+ 8. Nbxd2 d5
9. exd5 Nxd5 10. Qb3 Nce7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C55"]
[Opening "Two knights: Max Lange attack, Marshall variation"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d4 exd4 (4... Bxd4 5. Bg5 Nf6 (5... f6
6. Nxd4 Nxd4 7. Be3 Ne6 8. O-O) 6. Nxd4 Nxd4 7. f4 d6 8. f5) 5. O-O Nf6 (5... d6
6. c3 dxc3 7. Nxc3) 6. e5 d5 (6... Ng4 7. Bxf7+ Kxf7 8. Ng5+ Kg8 9. Qxg4 Nxe5
10. Qe4 d6 11. Qd5+ Kf8 12. f4) 7. exf6 dxc4 8. Re1+ Be6 9. Ng5 Qd5 (9... Qxf6
10. Nxe6 fxe6 11. Qh5+ g6 12. Qxc5) (9... O-O 10. fxg7 Kxg7 (10... Re8 11. Qh5
Bf5 12. Qxf7#) 11. Rxe6 h6 (11... fxe6 12. Nxe6+) 12. Rxh6 Kxh6 13. Nxf7+)
10. Nc3 Qf5 (10... dxc3 11. Qxd5) 11. Nce4 O-O-O (11... gxf6 12. g4 Qe5 13. f4
d3+ 14. Kf1 Qd4 15. Be3) 12. g4 Qe5 13. fxg7 Rhg8 14. Nxe6 fxe6 15. Bh6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C62"]
[Opening "Ruy Lopez: old Steinitz defence"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6 4. d4 exd4 5. Nxd4 Bd7 6. O-O Nf6 7. Nc3 Be7
8. Re1 O-O *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C60"]
[Opening "Ruy Lopez: Cozio defence"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7 4. O-O d6 5. d4 Bd7 6. Re1 Ng6 7. Nc3 Be7
8. Nd5 O-O *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C67"]
[Opening "Ruy Lopez: Berlin defence, open variation"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. O-O (4. d3 Bc5) 4... Nxe4 5. d4 Nd6 (
5... exd4 6. Re1 d5 7. Nxd4) 6. Bxc6 bxc6 (6... dxc6 7. dxe5 Nf5 8. Qxd8+ Kxd8)
7. dxe5 Nb7 8. Re1 Be7 9. Nc3 O-O 10. Qe2 Nc5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C61"]
[Opening "Ruy Lopez: Bird's defence"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4 4. Nxd4 exd4 5. O-O c6 6. Ba4 Nf6 7. d3 d5
8. Bg5 dxe4 (8... Be7 9. Bxf6 Bxf6 10. exd5 Qxd5 11. Re1+ Be6 12. Bb3) 9. dxe4
Be7 10. e5 Nd5 11. Bxe7 Nxe7 12. Bb3 O-O 13. Nd2 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C64"]
[Opening "Ruy Lopez: classical defence (4.c3)"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5 4. c3 Nf6 5. d4 exd4 6. e5 Ne4 (6... d5 7. exf6)
7. O-O (7. cxd4 Bb4+ 8. Bd2 Nxd2 9. Nbxd2 O-O 10. a3 Bxd2+ 11. Qxd2 d6) 7... d5 (
7... dxc3 8. Qd5 c2 9. Qxe4 cxb1=Q 10. Rxb1) 8. Nxd4 (8. cxd4 Bb6 9. Nc3)
8... O-O 9. Bxc6 (9. Nxc6 bxc6 10. Bxc6 Ba6) 9... bxc6 10. f3 (10. Nxc6 Qh4)
10... Ng5 11. Be3 Ne6 12. f4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C63"]
[Opening "Ruy Lopez: Schliemann defence, Berger variation (4...fxe4)"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5 4. Nc3 (4. d3 fxe4 5. dxe4 Nf6 6. O-O d6 7. Qd3
Be7 8. Qc4) 4... fxe4 5. Nxe4 d5 6. Nxe5 dxe4 7. Nxc6 Qd5 8. c4 Qd6 9. Qh5+ g6
10. Qe5+ Qxe5 11. Nxe5+ c6 12. Ba4 (12. Nxc6 a6 13. Ba4 Bd7) 12... Bg7 13. d4
exd3 14. Bf4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C68"]
[Opening "Ruy Lopez: exchange variation, Alapin gambit"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6 dxc6 5. O-O (5. Nxe5 Qd4 6. Nf3 Qxe4+
7. Qe2 Qxe2+ 8. Kxe2 Bg4) 5... Bg4 (5... f6 6. d4 Bg4 7. dxe5 Qxd1 8. Rxd1 fxe5
9. Rd3 Bd6) 6. h3 h5 (6... Bxf3 7. Qxf3 Qd7) (6... Bh5 7. g4 Bg6 8. Nxe5 Bxe4
9. Re1) 7. d3 (7. hxg4 hxg4 8. Nxe5 Qh4 9. f4 g3) (7. c3 Qd3 8. hxg4 hxg4
9. Nxe5 Bd6 10. Nxc6 Bh2+ 11. Kh1 Bd6+) 7... Qf6 8. Be3 (8. Nbd2 Ne7 9. hxg4
hxg4 10. Nh2 Qh4) 8... Bxf3 9. Qxf3 Qxf3 10. gxf3 Bd6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C80"]
[Opening "Ruy Lopez: open, Bernstein variation, Karpov gambit"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 (4... b5 5. Bb3) 5. O-O (5. Nc3 Bc5
6. d3 d6) (5. d3 Bc5 6. c3 b5 7. Bc2 d5) (5. Qe2 b5 6. Bb3 Be7 7. a4 Rb8 8. axb5
axb5) 5... Nxe4 6. d4 b5 7. Bb3 d5 (7... exd4 8. Re1 d5 9. Nc3 Be6 (9... dxc3
10. Bxd5 Bb7 11. Bxe4 Be7 12. Qe2) 10. Nxe4 dxe4 11. Rxe4 Be7 12. Bxe6 fxe6
13. Nxd4) 8. dxe5 Be6 9. Nbd2 (9. Qe2) (9. c3) 9... Nc5 10. c3 d4 (10... Nxb3
11. Nxb3 Be7 12. Nfd4 Nxd4 13. cxd4) 11. Ng5 Qxg5 12. Qf3 Kd7 13. Bd5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C85"]
[Opening "Ruy Lopez: exchange variation doubly deferred"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Bxc6 (6. Re1) (6. d3 d6)
6... dxc6 7. Re1 Nd7 (7... Bd6 8. d4 exd4 9. e5) (7... Qd6 8. d4) (7... Bg4
8. h3 h5 9. hxg4 hxg4 10. Nxe5) 8. d4 exd4 9. Nxd4 Nc5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez: closed, anti-Marshall (8.a4)"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 (6. d3 d6) (6. Nc3
b5 7. Bb3 O-O 8. d4 exd4 9. Nxd4 Nxd4 10. Qxd4 c5 11. Qe3 c4) 6... b5 7. Bb3 O-O
8. a4 (8. d4) (8. c3) 8... Bb7 9. d3 d6 10. Nc3 b4 11. Ne2 (11. Nd5 Nxd5
12. Bxd5 Na5) 11... Na5 12. Ba2 c5 13. Ng3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C88"]
[Opening "Ruy Lopez: closed (7...O-O)"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 (6. d3 d6) (6. Nc3
b5 7. Bb3 O-O 8. d4) 6... b5 7. Bb3 O-O 8. d4 Nxd4 9. Nxd4 (9. Nxe5 Nxb3
10. axb3 Bb7) 9... exd4 10. e5 (10. Qxd4 c5 11. Qd1 c4) 10... Ne8 11. c3 dxc3
12. Nxc3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C89"]
[Opening "Ruy Lopez: Marshall, main line"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 (6. d3 d6) (6. Nc3
b5 7. Bb3 O-O 8. d4) 6... b5 7. Bb3 O-O 8. c3 d5 9. exd5 Nxd5 10. Nxe5 Nxe5
11. Rxe5 c6 (11... Nf6) 12. d4 Bd6 13. Re1 Qh4 14. g3 Qh3 15. Be3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C97"]
[Opening "Ruy Lopez: closed, Chigorin defence"]

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3
d6 9. h3 (9. d4 Bg4 10. Be3 (10. d5 Na5 11. Bc2 c6 12. h3 Bc8 13. dxc6 Qc7)
10... Na5 (10... Nxe4 11. Bd5) 11. Bc2 (11. dxe5 Bxf3) 11... Nc4) 9... Na5 (
9... h6) (9... Bb7) (9... Be6) (9... a5) (9... Re8) (9... Nd7) 10. Bc2 c5 11. d4
Qc7 12. Nbd2 Bd7 (12... Bb7 13. d5) (12... Be6 13. d5) 13. Nf1 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D01"]
[Opening "Richter-Veresov attack, Richter variation"]

1. d4 d5 2. Nc3 (2. Bf4) (2. Bg5) (2. c4) 2... Nf6 3. Bg5 (3. e4) 3... Bf5 (
3... Nbd7) 4. f3 Nbd7 (4... e6 5. e4) 5. e4 dxe4 6. Bc4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D01"]
[Opening "Richter-Veresov attack"]

1. d4 d5 2. Nc3 (2. Bf4) (2. Bg5) (2. c4) 2... Nf6 3. Bg5 (3. e4) 3... Nbd7
4. f3 c5 5. dxc5 (5. e3 e6) (5. e4 cxd4 6. Qxd4 e5) 5... e6 6. e4 Bxc5 7. exd5
Qb6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D00/01"]
[Opening "Blackmar-Diemer: Teichmann defence"]

1. d4 d5 2. Nc3 Nf6 3. e4 dxe4 4. f3 exf3 5. Nxf3 Bg4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D00"]
[Opening "Queen's pawn: Mason variation"]

1. d4 d5 2. Bf4 Bf5 3. e3 e6 4. c4 Bxb1 5. Qa4+ (5. Rxb1 Bb4+) 5... Nc6 6. Rxb1
Bb4+ 7. Kd1 Bd6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D00"]
[Opening "Levitsky attack (Queen's bishop attack)"]

1. d4 d5 2. Bg5 Nf6 (2... f6 3. Bh4 Nh6) 3. Bxf6 exf6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D26"]
[Opening "QGA: classical variation (6.O-O)"]

1. d4 d5 2. c4 dxc4 (2... c6) (2... e6) (2... Bf5) (2... Nc6) 3. e3 (3. Qa4+) (
3. e4 e5 4. Nf3 (4. dxe5 Qxd1+ 5. Kxd1 Nc6) 4... exd4 5. Nxd4 Nf6) 3... Nf6
4. Bxc4 e6 5. Nf3 c5 6. O-O *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D18"]
[Opening "QGD Slav: Dutch variation"]

1. d4 d5 2. c4 c6 3. Nc3 (3. cxd5 cxd5 4. Nc3 Nf6 5. Nf3 Nc6 6. Bf4) (3. e3 Nf6
4. Nc3 e6 5. Nf3 Nbd7) 3... Nf6 (3... dxc4 4. e4 b5 5. a4 b4 6. Na2 e5) 4. Nf3
dxc4 5. a4 (5. e4 b5 6. e5 Nd5 7. a4) 5... Bf5 6. e3 e6 7. Bxc4 Bb4 8. O-O O-O *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D44"]
[Opening "QGD: semi-Slav, anti-Meran, Lilienthal variation"]

1. d4 d5 2. c4 c6 3. Nc3 Nf6 4. Nf3 e6 5. Bg5 (5. e3) 5... dxc4 6. e4 b5 7. e5
h6 8. Bh4 g5 9. Nxg5 hxg5 10. Bxg5 Nbd7 11. g3 Bb7 12. Bg2 Qb6 13. exf6 O-O-O
14. O-O *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1. d4 d5 2. c4 e6 (2... Bf5) (2... Nc6) *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D06"]
[Opening "Queen's gambit"]

1. d4 d5 2. c4 Bf5 3. cxd5 (3. Nc3 e6 4. Qb3 Nc6 5. e3 Bb4) 3... Bxb1 (
3... Qxd5 4. Nc3 Qa5 5. e4) 4. Qa4+ (4. Rxb1 Qxd5) 4... c6 (4... Qd7 5. Qxd7+
Nxd7 6. Rxb1 Ngf6 7. Bd2 Nb6 8. f3 Nbxd5 9. e4) 5. Rxb1 (5. dxc6 Nxc6 6. Rxb1 e5
7. Bd2 exd4 8. g3) 5... Qxd5 6. Nf3 Nd7 7. Bd2 (7. Bf4 Qe4) 7... Ngf6 8. e3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D07"]
[Opening "QGD: Chigorin defence"]

1. d4 d5 2. c4 Nc6 3. Nf3 Bg4 4. cxd5 Bxf3 (4... Qxd5 5. Nc3) 5. gxf3 (5. dxc6
Bxc6) 5... Qxd5 6. e3 (6. Nc3 Qxd4) 6... e5 7. Nc3 Bb4 8. Bd2 Bxc3 9. bxc3 Nge7
*

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E05"]
[Opening "Catalan: open, classical line"]

1. d4 d5 2. c4 e6 3. g3 (3. Nc3) (3. Nf3) 3... dxc4 (3... c6) 4. Bg2 (4. Qa4+
Bd7 5. Qxc4 Bc6 6. Nf3 Bxf3 7. exf3 Nc6 8. Be3 Qd5) 4... Nf6 (4... c5 5. Qa4+
Bd7 6. Qxc4 Bc6) 5. Nf3 (5. Qa4+ Nbd7 6. Qxc4 c5) 5... Be7 (5... c5) (5... Nc6) (
5... a6) 6. O-O O-O 7. Qa4 a6 8. Qxc4 b5 9. Qc2 Bb7 10. Bd2 (10. Bf4) (10. Bg5)
*

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1. d4 d5 2. c4 e6 3. g3 (3. Nc3) (3. Nf3) 3... c6 4. Qc2 (4. b3 dxc4 5. bxc4
Bb4+ 6. Bd2 (6. Nd2 Qxd4)) 4... Nf6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D30"]
[Opening "Queen's gambit declined"]

1. d4 d5 2. c4 e6 3. g3 (3. Nc3) (3. Nf3) 3... c6 4. Qc2 f5 5. Nf3 Nf6 6. Bg2
Bd6 7. Bf4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E06/04"]
[Opening "Catalan: closed"]

1. d4 d5 2. c4 e6 3. g3 c6 4. Qc2 Nf6 5. Bg2 Be7 6. Nf3 O-O 7. O-O b6 8. Rd1
Bb7 9. Nc3 Nbd7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D35"]
[Opening "QGD: exchange variation"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 (3... c6) (3... f5) 4. cxd5 exd5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D32"]
[Opening "QGD: Tarrasch, von Hennig-Schara gambit"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 (4. e3 Nf6 5. Nf3 Nc6) 4... cxd4 (4... exd5)
5. Qxd4 Nc6 6. Qd1 exd5 7. Qxd5 Bd7 (7... Be6 8. Qxd8+ Rxd8) 8. e3 Nf6 9. Qb3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D32"]
[Opening "QGD: Tarrasch defence, Marshall gambit"]

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. e4 (5. dxc5 d4 6. Na4 b5 7. cxb6
axb6) (5. Nf3 Nc6 6. e3 (6. g3 Nf6 7. Bg2 Be7 8. O-O O-O 9. Bg5) 6... Nf6 7. Bb5
cxd4 8. Nxd4 Bd7) 5... dxe4 6. d5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D53"]
[Opening "QGD: Orthodox, incl. Lasker/Tartakower/Pillsbury (plus exchange)"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 (4. cxd5) (4. Nf3 Nbd7 5. Bf4 (5. Bg5)
5... Bb4) (4. Bf4 Bb4) 4... Be7 (4... Nbd7) *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D55"]
[Opening "QGD: 6.Nf3"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 (6. Qd2) (6. Qc2) (
6. Rc1) 6... Ne4 (6... h6) (6... b6) 7. Bxe7 Qxe7 8. Rc1 (8. Nxe4 dxe4 9. Nd2 f5) (
8. cxd5 Nxc3 9. bxc3 exd5 10. c4) 8... Nxc3 9. Rxc3 c6 10. Bd3 dxc4 11. Bxc4 b6
*

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D51"]
[Opening "QGD"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 (5. cxd5 exd5 6. Nxd5 Nxd5
7. Bxd8 Bb4+ 8. Qd2 Bxd2+ 9. Kxd2 Kxd8) (5. e4 dxe4 6. Nxe4 h6 7. Bxf6 Nxf6)
5... h6 6. Bh4 (6. Bxf6 Nxf6) (6. Bf4 Bb4) 6... Be7 (6... Bb4) 7. cxd5 (7. Nf3)
*

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D51"]
[Opening "QGD"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 h6 6. Bh4 Be7 7. cxd5 (7. Nf3)
7... exd5 8. Bd3 c6 9. Nf3 (9. Nge2) 9... O-O 10. O-O Ne4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D51"]
[Opening "QGD"]

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 h6 6. Bh4 Be7 7. Nf3 O-O (
7... dxc4 8. Bxc4) 8. Rc1 a6 9. cxd5 (9. a3 dxc4 10. Bxc4 b5 11. Ba2 c5)
9... exd5 10. Bd3 c6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B03"]
[Opening "Alekhine's defence: exchange variation"]

1. e4 Nf6 (1... f5) (1... d5) 2. e5 (2. Nc3 d5 (2... e5)) 2... Nd5 (2... Ne4
3. d3 Nc5 4. d4) 3. d4 (3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6) 3... d6 4. c4 (
4. Nf3) (4. Bc4) 4... Nb6 5. exd6 (5. f4) 5... cxd6 (5... exd6) 6. Nc3 g6 7. Be3
Bg7 8. c5 dxc5 9. dxc5 N6d7 10. Bc4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B01"]
[Opening "Scandinavian defence, Lasker variation"]

1. e4 d5 2. exd5 Qxd5 (2... Nf6 3. d4 (3. Bb5+) (3. c4) 3... Nxd5 4. c4 Nb6
5. Nc3) 3. Nc3 Qa5 (3... Qd6) (3... Qd8) 4. d4 Nf6 5. Nf3 Bg4 6. h3 Bxf3 7. Qxf3
c6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C01/12"]
[Opening "French: exchange (4.Bd3 Bd6)"]

1. e4 e6 2. d4 d5 3. exd5 (3. Nc3) (3. Nd2) (3. e5) 3... exd5 4. Bd3 Bd6 5. Nf3
Nf6 6. O-O O-O 7. Bg5 Bg4 8. Nbd2 Nbd7 9. c3 c6 10. Qc2 Qc7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C10"]
[Opening "French: Rubinstein variation"]

1. e4 e6 2. d4 d5 3. Nc3 dxe4 (3... Bb4) (3... Nf6) (3... Be7) 4. Nxe4 Nd7
5. Nf3 Ngf6 6. Nxf6+ Nxf6 7. Bd3 Be7 8. Qe2 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C19"]
[Opening "French: Winawer, advance, positional main line"]

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 (4. exd5 exd5) 4... c5 5. a3 Bxc3+ 6. bxc3
Ne7 7. Nf3 (7. a4) (7. h4) (7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4 10. Ne2 Nbc6
11. f4 Bd7 12. Qd3) 7... Nbc6 8. a4 Qa5 9. Bd2 Bd7 10. Bd3 c4 11. Be2 O-O-O
12. O-O *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C11"]
[Opening "French defence"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C14"]
[Opening "French: classical, Steinitz variation"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. Bxe7 (6. h4) 6... Qxe7
7. f4 a6 8. Nf3 c5 9. dxc5 Nxc5 10. Bd3 Nc6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C11"]
[Opening "French: Steinitz, Boleslavsky variation"]

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5 Nfd7 5. f4 c5 6. Nf3 Nc6 7. Be3 cxd4 8. Nxd4
Bc5 9. Qd2 Nxd4 10. Bxd4 Bxd4 11. Qxd4 Qb6 12. Qxb6 Nxb6 13. Nb5 Ke7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C10"]
[Opening "French: Paulsen variation"]

1. e4 e6 2. d4 d5 3. Nc3 Be7 4. Bd3 (4. Nf3 Nf6 5. e5 Nfd7) (4. e5 b6 5. Qg4 g6
6. h4 h5 7. Qf4 Ba6) 4... dxe4 5. Nxe4 Nd7 6. Nf3 Ngf6 7. Nxf6+ Bxf6 8. Qe2 c5
9. d5 Nb6 10. Bb5+ Kf8 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C09/17"]
[Opening "French: Tarrasch, open variation, main line"]

1. e4 e6 2. d4 d5 3. Nd2 c5 (3... Nf6 4. e5 Nfd7 5. f4 c5 6. c3 Nc6 7. Ndf3
cxd4 8. cxd4 Nb6) 4. exd5 (4. c3 cxd4 5. cxd4 dxe4 6. Nxe4 Bb4+ 7. Nc3 Nf6)
4... exd5 5. Ngf3 Nc6 6. Bb5 Bd6 7. O-O Ne7 8. dxc5 Bxc5 9. Nb3 Bd6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C03"]
[Opening "French: Tarrasch"]

1. e4 e6 2. d4 d5 3. Nd2 Be7 (3... dxe4) 4. Bd3 (4. Ngf3 Nf6 5. e5 Nfd7 6. Bd3
c5 7. c3 cxd4 8. cxd4 b6 9. Qe2 a5) 4... dxe4 5. Nxe4 Nd7 6. Nf3 Ngf6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "C02"]
[Opening "French: advance variation"]

1. e4 e6 2. d4 d5 3. e5 c5 (3... b6) 4. c3 Nc6 5. Be2 (5. Bd3) (5. a3)
5... cxd4 6. cxd4 Nge7 7. Na3 Nf5 8. Nc2 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B19"]
[Opening "Caro-Kann: classical, Spassky variation, intermediate main line : *pwo 11/01 add"]

1. e4 c6 2. d4 d5 3. Nc3 (3. exd5) (3. e5) 3... dxe4 4. Nxe4 Bf5 (4... Nd7
5. Ng5 Ngf6 6. Bd3 e6 7. N1f3 Bd6 8. Qe2 h6 9. Ne4 Nxe4 10. Qxe4 Nf6 11. Qe2 b6
12. Bd2 Bb7 13. O-O-O) 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3
10. Qxd3 e6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B13"]
[Opening "Caro-Kann: exchange, Rubinstein variation"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4 Bg4 7. Qb3 (7. Nf3)
7... Qd7 8. Nd2 e6 9. Ngf3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B14/11"]
[Opening "Caro-Kann: Panov-Botvinnik attack (6...Be7)"]

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Be7 7. cxd5 Nxd5
8. Bd3 O-O 9. O-O *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann: advance variation"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4 (4. Nc3) (4. h4) (4. Nf3) (4. Bd3) 4... Be4
5. f3 Bg6 6. h4 (6. e6 Qd6) 6... h5 7. Nh3 e6 8. Nf4 hxg4 9. Nxg6 fxg6 10. fxg4
Rxh4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann: advance variation"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 c5 (6... Qh4) 7. h4 h6 (
7... h5 8. Nf4) 8. Be3 Nc6 9. f4 Qb6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann: advance variation"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4 h5 (4... e6 5. g4 Be4 6. f3 Bg6 7. h5) (
4... h6 5. g4 Bd7 (5... Bh7 6. e6 fxe6 7. Bd3) 6. h5) 5. c4 e6 6. Nc3 Ne7 7. Nf3
Nd7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B12"]
[Opening "Caro-Kann: advance variation"]

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3 e6 5. Be2 c5 6. O-O Ne7 (6... Nc6 7. c3 cxd4
8. cxd4 Nge7 9. Be3) 7. dxc5 (7. c3) (7. c4) (7. Nbd2) 7... Nec6 8. a3 Bxc5
9. b4 Be7 10. c4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B20"]
[Opening "Sicilian defence"]

1. e4 c5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B21/05"]
[Opening "Sicilian: Smith-Morra gambit"]

1. e4 c5 2. d4 cxd4 3. c3 (3. Qxd4 Nc6) (3. Nf3) 3... d5 4. exd5 Qxd5 5. cxd4
Nf6 6. Nc3 Qd8 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B21/05"]
[Opening "Sicilian: Smith-Morra gambit (...e6)"]

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 Nc6 6. Bc4 a6 7. O-O Qc7 (
7... Nf6 8. Bg5) 8. Qe2 Nf6 9. Bg5 Ng4 10. Rad1 d6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B22"]
[Opening "Sicilian: Alapin (...d5 exd5...Qxd5)"]

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 (4... Nf6 5. Nf3 Bg4 6. Be2 e6)
5. cxd4 Nf6 6. Nc3 Qd8 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B80"]
[Opening "Sicilian: Scheveningen variation"]

1. e4 c5 2. Nf3 d6 3. d4 (3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4) 3... cxd4 4. Nxd4
Nf6 5. Nc3 e6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B86/01"]
[Opening "Sicilian: Sozin attack"]

1. e4 c5 2. Nf3 d6 3. d4 (3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4) 3... cxd4 4. Nxd4
Nf6 5. Nc3 e6 6. Bc4 (6. Be2) (6. g4) (6. f4) 6... Be7 7. Bb3 O-O 8. Be3 Na6 (
8... Nbd7 9. Bxe6 fxe6 10. Nxe6 Qa5 11. Nxf8 Bxf8) 9. Qe2 Nc5 10. f3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B83"]
[Opening "Sicilian: Scheveningen (6.Be2)"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. Be2 Be7 7. O-O Nc6
8. Kh1 O-O 9. f4 a6 10. Be3 Qc7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81"]
[Opening "Sicilian: Scheveningen, Keres attack"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 Nc6 7. g5 Nd7 8. Be3
a6 9. h4 Qc7 10. f4 b5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B81/32"]
[Opening "Sicilian: Scheveningen, Keres attack"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. g4 h6 7. g5 hxg5 8. Bxg5
Nc6 9. f4 Be7 10. Qd2 a6 11. O-O-O Qc7 12. h4 Bd7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B82"]
[Opening "Sicilian: Scheveningen, Tal variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e6 6. f4 Nc6 7. Be3 Be7 8. Qf3
*

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B70"]
[Opening "Sicilian: dragon variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B71"]
[Opening "Sicilian: dragon, Levenfish variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nc6 7. Nf3 Bg7 8. Bd3
O-O 9. O-O b6 (9... d5 10. e5) 10. Qe1 Nb4 11. Qh4 Nxd3 12. cxd3 Ba6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B74"]
[Opening "Sicilian: dragon, classical (9.Nb3)"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. Be3 Nc6
8. Nb3 O-O 9. O-O Be6 10. f4 Na5 11. f5 Bc4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B78"]
[Opening "Sicilian: dragon, Yugoslav attack (10.O-O-O)"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 (6... Ng4
7. Bb5+ Bd7 8. Qxg4) 7. f3 O-O 8. Qd2 Nc6 9. Bc4 Bd7 10. O-O-O Rc8 11. Bb3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B96"]
[Opening "Sicilian: Najdorf (7.f4)"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 (6. Bc4) (6. Be2) (
6. g3) (6. h3) (6. Be3) (6. a4) (6. f4 e6 7. Qf3) 6... e6 7. f4 Nbd7 (7... Qc7) (
7... Qb6) (7... b5) (7... Be7) 8. Bc4 b5 9. Bxe6 fxe6 10. Nxe6 Qa5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B96"]
[Opening "Sicilian: Najdorf (7.f4)"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qc7 8. Bxf6
gxf6 9. Qh5 (9. f5 Nc6 10. Bc4 Nxd4 11. Qxd4 Be7 12. O-O-O Bd7) 9... Qc5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B97"]
[Opening "Sicilian: Najdorf, Poisoned pawn variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 (
8. Nb3 Qe3+ 9. Qe2 Qxe2+ 10. Bxe2 Nbd7) 8... Qxb2 9. Rb1 Qa3 10. Bxf6 gxf6
11. f5 Nc6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B96"]
[Opening "Sicilian: Najdorf, Polugayevsky, Simagin variation"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5 8. e5
dxe5 9. fxe5 Qc7 10. Qe2 (10. exf6 Qe5+ 11. Qe2 Qxg5) 10... Nfd7 11. O-O-O Nc6 (
11... Qxe5 12. Qxe5 Nxe5 13. Ndxb5 axb5 14. Nxb5) *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B99"]
[Opening "Sicilian: Najdorf (7...Be7) main line"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3
Qc7 (8... h6 9. Bh4) 9. O-O-O Nbd7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B59"]
[Opening "Sicilian: Boleslavsky variation (7.Nb3)"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 (6. Bc4) 6... e5 (
6... e6) (6... g6) 7. Nb3 Be6 8. Bg5 Be7 9. O-O O-O *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B63"]
[Opening "Sicilian: Richter-Rauzer, Rauzer attack"]

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 (6... g6 7. Bxf6
exf6) 7. Qd2 Be7 8. O-O-O O-O *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B43"]
[Opening "Sicilian: Kan (5.Nc3)"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 (4... Nc6) (4... Nf6) 5. Nc3 (5. c4) (
5. Bd3) 5... Qc7 6. Bd3 Nc6 7. Be3 Nf6 8. O-O Ne5 9. h3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B41"]
[Opening "Sicilian: Kan variation"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 8. Bc2
*

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B42"]
[Opening "Sicilian: Kan, Gipslis variation"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O d6 7. c4 g6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B44"]
[Opening "Sicilian: Szen (anti-Taimanov) variation"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 (5. Nc3 d6) 5... d6 6. c4 Nf6
7. N1c3 a6 8. Na3 Be7 9. Be2 O-O 10. O-O *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B40"]
[Opening "Sicilian: Pin, Koch variation"]

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 (5. e5 Qa5+) (5. Bd3 Nc6
6. Nxc6 dxc6) 5... Bb4 6. e5 Ne4 (6... Qa5 7. exf6 Bxc3+ 8. bxc3 Qxc3+ 9. Qd2
Qxa1 10. c3 Qb1 11. Bd3 Qb6 12. fxg7 Rg8 13. Qh6) 7. Qg4 Nxc3 8. a3 Bf8 9. bxc3
Qc7 10. Qg3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian: Labourdonnais-Loewenthal variation"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 (5. Nxc6 bxc6) (5. Nf5 d5)
5... a6 (5... Nf6) (5... d6) 6. Nd6+ Bxd6 7. Qxd6 Qf6 8. Qd1 (8. Qxf6 Nxf6
9. Nc3 d5 10. exd5 Nb4) 8... Qg6 9. Nc3 Nf6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B33"]
[Opening "Sicilian: Sveshnikov variation"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 Nf6 6. N1c3 d6 7. Bg5 a6
8. Bxf6 gxf6 9. Na3 b5 10. Nd5 f5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B32"]
[Opening "Sicilian: Labourdonnais-Loewenthal (Kalishnikov) variation"]

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6 6. c4 (6. Bc4 Be6 7. Bb3 a6
8. N5c3 Nd4) 6... f5 7. exf5 Bxf5 8. Bd3 Be6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A40"]
[Opening "Polish defence"]

1. d4 b5 2. e4 Bb7 3. Bd3 e6 4. Nf3 a6 5. O-O Nf6 6. Re1 c5 7. c3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A82"]
[Opening "Dutch: Staunton gambit"]

1. d4 f5 2. e4 (2. Bg5) (2. c4) 2... fxe4 3. f3 d5 (3... exf3 4. Nxf3 Nf6
5. Bd3) 4. fxe4 dxe4 5. Nc3 Nf6 6. Bg5 Bf5 7. Nge2 e6 8. Ng3 Be7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A80"]
[Opening "Dutch: 2.Bg5 variation"]

1. d4 f5 2. Bg5 h6 (2... Nf6 3. Bxf6 exf6 4. e3) 3. Bh4 g5 4. e3 Nf6 5. Bg3 Bg7
6. Nd2 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A85/11"]
[Opening "Dutch (c4/Nc3...e6)"]

1. d4 f5 2. c4 Nf6 3. Nc3 e6 4. Nf3 Be7 5. e3 O-O 6. Bd3 d5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A52"]
[Opening "Budapest: Rubinstein variation"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 (4. f4 Bc5) (4. e4 Nxe5 5. f4 Nec6 6. Be3)
4... Nc6 5. Nf3 Bb4+ 6. Nbd2 Qe7 7. a3 Ngxe5 8. Nxe5 (8. axb4 Nd3#) 8... Nxe5
9. e3 Bxd2+ 10. Qxd2 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A52"]
[Opening "Budapest: Rubinstein variation"]

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. Bf4 Nc6 5. Nf3 Bb4+ 6. Nc3 Bxc3+ 7. bxc3 Qe7
8. Qd5 f6 (8... Qa3 9. Rc1 Qxa2 10. h3 Nh6 11. e4) 9. exf6 Nxf6 10. Qd3 d6
11. g3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A58"]
[Opening "Benko gambit accepted"]

1. d4 Nf6 2. c4 c5 3. d5 (3. dxc5 e6) (3. e3 cxd4 4. exd4 e5) (3. Nf3 cxd4
4. Nxd4 a6 5. Nc3 e5) 3... b5 4. cxb5 a6 5. bxa6 Bxa6 6. Nc3 g6 7. g3 d6 8. Bg2
Bg7 9. Nf3 O-O 10. O-O Nbd7 11. Re1 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A57"]
[Opening "Benko gambit (Volga gambit)"]

1. d4 Nf6 2. c4 c5 3. d5 b5 4. Nf3 b4 (4... bxc4 5. Nc3 d6 6. e4 g6 7. Bxc4) (
4... g6 5. cxb5 a6 6. Nc3 axb5 7. e4 b4 8. Nb5) 5. a3 Na6 6. axb4 Nxb4 7. Nc3 d6
8. e4 g6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A67"]
[Opening "Benoni: Taimanov variation"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+ (
8. e5 dxe5 9. fxe5 Nfd7 10. e6 fxe6 11. dxe6 Qh4+ 12. g3 Bxc3+ 13. bxc3 Qe4+)
8... Nfd7 (8... Nbd7 9. e5 dxe5 10. fxe5 Nh5 11. e6 Qh4+ 12. g3 Nxg3 13. hxg3
Qxh1) 9. a4 Qh4+ 10. g3 Qe7 11. Nf3 O-O 12. O-O *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A61"]
[Opening "Benoni: Nimzovich (knight's tour) variation"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Nd2 Nbd7 (
7... Bg7 8. Nc4 O-O 9. Bf4 Ne8) 8. e4 (8. Nc4 Nb6) 8... Bg7 9. Be2 O-O 10. O-O
a6 11. a4 Re8 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A70"]
[Opening "Benoni: classical (with e4 and Nf3)"]

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. Nf3 Bg7 8. h3
O-O 9. Bd3 b5 10. Bxb5 Nxe4 11. Nxe4 Qa5+ 12. Nfd2 Qxb5 13. Nxd6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A56"]
[Opening "Czech Benoni ...Be7"]

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 Be7 6. h3 O-O 7. Nf3 Ne8 8. g4 Nd7
9. Bd3 g6 10. Bh6 Ng7 11. Rg1 Nf6 12. Qe2 Kh8 13. O-O-O Ng8 14. Bd2 f5 15. gxf5
gxf5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E31/08"]
[Opening "Nimzo-Indian: Leningrad, main line"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5 (4. a3) (4. Qb3) (4. Qc2) (4. e3) 4... c5
5. d5 h6 6. Bh4 Bxc3+ 7. bxc3 d6 8. e3 (8. e4 g5 9. Bg3 Nxe4) 8... e5 9. f3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E29"]
[Opening "Nimzo-Indian: Saemisch, Capablanca variation"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. a3 Bxc3+ 5. bxc3 c5 6. e3 (6. f3 d5 7. cxd5
Nxd5 (7... exd5 8. e3 O-O 9. Bd3 b6 10. Ne2 Ba6) 8. dxc5 f5) 6... Nc6 7. Bd3 O-O
8. Ne2 b6 9. e4 Ne8 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E23"]
[Opening "Nimzo-Indian: Spielmann (4...c5 5.dxc5 Nc6)"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3 c5 5. dxc5 (5. a3 Bxc3+ 6. Qxc3 cxd4
7. Qxd4 d5 8. Nf3 Nc6) 5... Nc6 6. Nf3 Ne4 7. Bd2 Nxc3 (7... Nxd2) *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E39"]
[Opening "Nimzo-Indian: classical, Pirc variation"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 c5 5. dxc5 O-O (5... Na6 6. a3 Bxc3+
7. Qxc3 Nxc5 8. b4 Nce4 9. Qd4 d5 10. c5 b6) 6. a3 Bxc5 7. Nf3 Nc6 8. Bg5 Nd4
9. Nxd4 Bxd4 10. e3 Qa5 11. exd4 Qxg5 12. Qd2 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E37"]
[Opening "Nimzo-Indian: classical, San Remo variation"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 d5 5. a3 Bxc3+ 6. Qxc3 Ne4 7. Qc2 Nc6
8. e3 e5 9. cxd5 Qxd5 10. Bc4 Qa5+ 11. b4 Nxb4 12. Qxe4 Nc2+ 13. Ke2 Qe1+
14. Kf3 Nxa1 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E32"]
[Opening "Nimzo-Indian: classical variation"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 O-O 5. a3 (5. e4 d5 6. cxd5 exd5 7. e5 Ne4
8. Bd3 c5) 5... Bxc3+ 6. Qxc3 b6 7. Bg5 Bb7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E45"]
[Opening "Nimzo-Indian: 4.e3, Bronstein (Byrne) variation"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6 (4... c5) (4... d5) (4... O-O) 5. Ne2
Ba6 6. a3 Bxc3+ 7. Nxc3 d5 8. b3 Nc6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E42"]
[Opening "Nimzo-Indian: 4.e3 c5 5.Ne2 (Rubinstein)"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Ne2 (5. Bd3) 5... d5 6. a3 Bxc3+
7. Nxc3 cxd4 8. exd4 dxc4 9. Bxc4 O-O 10. O-O Nc6 11. Be3 b6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E41"]
[Opening "Nimzo-Indian: 4.e3 c5"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 c5 5. Bd3 Nc6 6. Ne2 (6. Nf3 Bxc3+ 7. bxc3
d6 8. O-O e5 9. Nd2 O-O (9... cxd4 10. cxd4 exd4 11. exd4 Nxd4 12. Bb2 Ne6
13. Ne4) 10. d5 Ne7 11. Qc2) 6... cxd4 7. exd4 d5 8. a3 dxc4 9. Bxc4 Be7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E40"]
[Opening "Nimzo-Indian: 4.e3"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ (5... Be7 6. Nf3 O-O 7. b4)
6. bxc3 c5 7. Bd3 O-O 8. Ne2 b6 9. cxd5 exd5 10. Ng3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E46"]
[Opening "Nimzo-Indian: Reshevsky variation"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Ne2 (5. Bd3) 5... d5 6. a3 Be7 (
6... Bd6 7. c5 Be7 8. b4) 7. Nf4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E53"]
[Opening "Nimzo-Indian: 4.e3, main line (with...c5)"]

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 c5 6. Nf3 d5 7. O-O dxc4 8. Bxc4
b6 9. Qe2 Bb7 10. Rd1 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E14/01"]
[Opening "Queen's Indian: Bogo-Indian"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ (3... d5) (3... c5 4. d5) 4. Nbd2 (4. Bd2)
4... b6 5. a3 Bxd2+ (5... Be7 6. e4 Bb7 7. Bd3) 6. Qxd2 (6. Nxd2 Bb7) (6. Bxd2
Bb7) 6... Bb7 7. e3 O-O (7... Bxf3 8. gxf3) 8. Be2 d6 9. O-O Nbd7 10. b4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E11"]
[Opening "Bogo-Indian defence: Nimzovich variation"]

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 (4... a5) (4... c5) 5. g3 (5. Nc3
Bxc3 6. Bxc3 Ne4 7. Qc2 Nxc3 8. Qxc3 d6 9. e4 Nd7) 5... Nc6 6. Bg2 Bxd2+
7. Nbxd2 (7. Qxd2 Ne4 8. Qc2 Qb4+) 7... d6 8. O-O e5 9. d5 Nb8 10. e4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E13/11"]
[Opening "Queen's Indian: main line (7.e3)"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. Nc3 (4. a3) (4. g3) 4... Bb4 5. Bg5 Bb7 6. e3
h6 7. Bh4 g5 8. Bg3 Ne4 9. Qc2 Bxc3+ 10. bxc3 Nxg3 11. hxg3 d6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E12"]
[Opening "Queen's Indian accelerated: Petrosian system"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3 Bb7 5. Nc3 d5 6. cxd5 Nxd5 (6... exd5)
7. Qc2 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E19"]
[Opening "Queen's Indian: old main line (9.Qxc3)"]

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3 Bb7 (4... Ba6 5. b3 c6 6. Bg2 d5) 5. Bg2 Be7
6. O-O O-O 7. Nc3 Ne4 8. Qc2 Nxc3 9. Qxc3 f5 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D89"]
[Opening "Gruenfeld: Spassky variation, main line (13.Bd3)"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 (4. Nf3) (4. Bf4) 4... Nxd5 5. e4 Nxc3
6. bxc3 Bg7 7. Bc4 c5 8. Ne2 O-O 9. O-O Nc6 10. Be3 Bg4 11. f3 Na5 12. Bd3 (
12. Bxf7+ Rxf7 13. fxg4 Rxf1+ 14. Kxf1) 12... cxd4 13. cxd4 Be6 14. Rc1 Bxa2
15. Qa4 Bb3 16. Qb4 b6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D85"]
[Opening "Gruenfeld: modern exchange variation"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4 Nxc3 6. bxc3 Bg7 7. Nf3 c5
8. Rb1 O-O (8... b6 9. Bb5+) 9. Be2 cxd4 10. cxd4 Qa5+ 11. Bd2 (11. Qd2 Qxd2+
12. Bxd2 b6) 11... Qxa2 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D97"]
[Opening "Gruenfeld: Russian, Alekhine (Hungarian) variation"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 (5. Bg5) (5. cxd5) 5... dxc4 (
5... c6 6. cxd5 cxd5) 6. Qxc4 O-O 7. e4 a6 (7... Na6) (7... b6) (7... c6) (
7... Nc6) (7... Bg4) *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D91"]
[Opening "Gruenfeld: 5.Bg5"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5 Ne4 (5... dxc4 6. e4) (5... c6
6. cxd5 cxd5 7. e3) 6. cxd5 Nxg5 (6... Nxc3 7. bxc3 Qxd5 8. e3) 7. Nxg5 e6
8. Nf3 (8. Qd2 exd5 9. Qe3+ Kf8 10. Qf4 Bf6) 8... exd5 9. b4 O-O 10. e3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "D82"]
[Opening "Gruenfeld: 4.Bf4"]

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Bf4 Bg7 5. e3 c6 (5... c5 6. dxc5 Qa5 7. Rc1
dxc4 8. Bxc4 O-O 9. Nf3 Qxc5) (5... O-O 6. cxd5 (6. Rc1) 6... Nxd5 7. Nxd5 Qxd5
8. Bxc7 Na6 9. Bg3 (9. Bxa6 Qxg2 10. Qf3 Qxf3 11. Nxf3 bxa6) 9... Bf5) 6. Nf3
O-O 7. Bd3 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A05"]
[Opening "Reti: King's Indian attack"]

1. Nf3 Nf6 2. g3 g6 3. Bg2 Bg7 4. O-O O-O *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A07/05"]
[Opening "Reti: King's Indian attack (...Bf5)"]

1. Nf3 d5 2. g3 Nf6 3. Bg2 Bf5 4. O-O e6 5. d3 h6 6. Nbd2 Be7 7. b3 O-O 8. Bb2
Nbd7 9. Re1 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A07"]
[Opening "Reti: King's Indian attack"]

1. Nf3 Nf6 2. g3 d5 3. Bg2 Bg4 4. O-O Bxf3 5. exf3 (5. Bxf3 e5) 5... e6 (
5... e5 6. Re1 Nc6 7. d4) 6. f4 Be7 7. d3 O-O 8. Nd2 c5 (8... c6) 9. Nf3 Nc6
10. Re1 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A08"]
[Opening "Reti: KIA (plus Queen's pawn, Catalan, QGD, English)"]

1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. O-O e5 5. d3 Nf6 6. e4 dxe4 (6... d4) (
6... Be7) 7. dxe4 Qxd1 (7... Nxe4 8. Qxd8+ Nxd8 (8... Kxd8 9. Nxe5 Nxe5 10. Bxe4)
9. Nxe5) 8. Rxd1 Bg4 (8... Nxe4 9. Nxe5 Nxe5 10. Bxe4) 9. c3 Nxe4 10. Re1 f5 (
10... Nf6 11. Nxe5) (10... Bxf3 11. Bxf3 Nf6 12. Bxc6+ bxc6 13. Rxe5+) 11. Nh4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A08"]
[Opening "Reti: KIA (plus Queen's pawn, Catalan, QGD, English)"]

1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. O-O e5 5. d3 Nf6 6. e4 d4 7. a4 Be7 8. Na3 O-O
9. Nc4 Nd7 10. Ne1 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A08"]
[Opening "Reti: KIA (plus Queen's pawn, Catalan, QGD, English)"]

1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. O-O e5 5. d3 Nf6 6. e4 Be7 7. exd5 Nxd5 (
7... Qxd5) 8. Re1 f6 (8... Bf6 9. Nxe5 Nxe5 10. f4) (8... Qd6 9. Nbd2) 9. c3 O-O
10. d4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A08/05"]
[Opening "Neo-Sicilian: King's Indian attack, French variation"]

1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. O-O e6 5. d3 Nf6 6. Nbd2 Be7 7. e4 O-O 8. Re1
b5 9. e5 Nd7 10. h4 b4 11. Nf1 a5 12. N1h2 a4 13. Bf4 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "A04"]
[Opening "Reti (plus English symmetrical, KIA, KID, QGD, closed Sicilian) openings"]

1. Nf3 c5 2. g3 b6 3. Bg2 (3. e4 Bb7 4. d3) 3... Bb7 4. O-O g6 5. d3 Bg7 6. e4
d6 7. Nbd2 Nd7 8. Re1 Ngf6 9. c3 O-O *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E76"]
[Opening "King's Indian: four pawns attack"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4 (5. f3) (5. Be2) (5. Nf3) 5... c5
6. d5 (6. dxc5 Qa5 7. Bd3 (7. cxd6) 7... Qxc5 8. Nf3 O-O 9. Qe2 Bg4 10. Be3 Qa5
11. O-O Nc6) 6... O-O 7. Nf3 (7. e5 Ne8 8. Nf3 Bg4) 7... b5 8. cxb5 (8. Be2 b4
9. Nb5 Nxe4) (8. e5 dxe5 9. fxe5 Ng4 10. Bf4 b4 11. Ne4 Nd7) 8... a6 9. a4 Nbd7
10. Be2 axb5 11. Bxb5 Ba6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E80"]
[Opening "King's Indian: Saemisch variation"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 e5 6. d5 (6. dxe5 dxe5 7. Qxd8+
Kxd8 8. Bg5 c6 9. O-O-O+ Kc7) (6. Nge2 exd4 7. Nxd4 O-O 8. Be2 c6) 6... Na6
7. Be3 Nh5 8. Qd2 Qh4+ (8... f5) 9. Bf2 Qf4 10. Be3 Qh4+ 11. g3 Nxg3 12. Qf2 (
12. Bf2 Nxf1 13. Bxh4 Nxd2 14. Kxd2) 12... Nxf1 13. Qxh4 Nxe3 14. Ke2 Nxc4
15. b3 Nb6 16. Rc1 Bd7 17. Nh3 O-O 18. Nf2 f6 19. a4 Rae8 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E73"]
[Opening "King's Indian: Averbakh system"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5 c6 (6... e5 7. dxe5
dxe5 8. Qxd8 Rxd8 9. Nd5) 7. Qd2 e5 8. d5 cxd5 9. cxd5 (9. Nxd5 Nc6 10. O-O-O
Be6) 9... Nbd7 10. f3 a5 11. Nh3 Nc5 12. Nf2 a4 13. O-O Bd7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "E94"]
[Opening "King's Indian: orthodox variation"]

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2 e5 7. O-O exd4 8. Nxd4
Re8 9. f3 c6 10. Kh1 (10. Be3 d5 11. cxd5 Nxd5 12. Nxd5 cxd5) (10. Nc2)
10... Nbd7 (10... d5 11. cxd5 cxd5 12. Bg5 dxe4 13. Ndb5) 11. Bg5 (11. Nb3) (
11. Nc2) (11. Rb1) (11. Bf4) 11... h6 (11... Qb6) (11... Qa5) 12. Bh4 Ne5
13. Qc2 (13. Qd2 Nxe4) 13... g5 14. Bf2 c5 15. Nb3 Be6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B09"]
[Opening "Pirc: Austrian attack (6.e5)"]

1. e4 d6 (1... Nf6 2. e5) 2. d4 Nf6 3. Nc3 (3. f3 g6 4. c4 Bg7 5. Nc3) 3... g6
4. f4 (4. f3) (4. Be3) (4. Bg5) (4. Be2) (4. Nf3) 4... Bg7 5. Nf3 O-O 6. e5 (
6. Bd3) (6. Be3) *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B09"]
[Opening "Pirc: Austrian attack (6.e5)"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5 Ne8 7. Be3 (7. Bc4) (
7. Bd3) (7. h4) 7... c5 8. dxc5 Nc6 9. Be2 Bg4 10. cxd6 exd6 11. exd6 Nxd6
12. Bc5 Bxc3+ 13. bxc3 Ne4 14. Bxf8 Qb6 15. Rf1 Nxc3 16. Qd2 Nxe2 17. Qxe2 Rxf8
*

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B09"]
[Opening "Pirc: Austrian attack (6.Bd3)"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3 Na6 7. O-O (7. e5 Ne8
8. Be3 b6) 7... c5 8. d5 Rb8 9. Kh1 (9. Qe2 Nb4) 9... Nc7 10. a4 a6 11. a5 b5
12. axb6 Rxb6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B09"]
[Opening "Pirc: Austrian attack (6.Be3)"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3 b6 7. e5 Ng4 8. Bg1 c5
9. h3 Nh6 10. d5 (10. dxc5 bxc5 11. Qd5 Qb6) 10... Nd7 11. Qe2 (11. e6 fxe6
12. dxe6 Nf6 13. Bc4 Nh5) 11... b5 12. O-O-O (12. Nxb5 Qa5+ 13. Qd2 (13. c3 Ba6) (
13. Nc3 Rb8) 13... Qxd2+ 14. Kxd2 dxe5) (12. Qxb5 Rb8) 12... b4 13. Ne4 Nb6
14. g4 Bb7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc defence"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 (4. f3) 4... c6 (4... Ng4 5. Bg5 h6 6. Bh4
g5 7. Bg3) 5. Qd2 b5 6. f3 Nbd7 7. O-O-O (7. Nh3) (7. h4) (7. Bh6) (7. g4)
7... Nb6 8. g4 b4 9. Nb1 a5 10. h4 h5 11. g5 Nh7 12. Bd3 Bg7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc: Byrne variation"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5 h6 (4... Bg7 5. f4) 5. Be3 c6 6. f3 b5
7. Qd2 Nbd7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B07"]
[Opening "Pirc: bayonet (Mariotti) attack"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. h4 c5 6. dxc5 (6. d5 a6 7. h5 (7. a4
e6) 7... b5) 6... Qa5 7. Qd3 Qxc5 (7... Nxe4 8. Qb5+) 8. Be3 Qa5 9. h5 Nc6
10. h6 (10. hxg6 hxg6 11. Rxh8+ Bxh8) 10... Bf8 11. O-O-O Bd7 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc: classical system (5.Be2)"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. a4 Nbd7 8. Be3
e5 9. dxe5 dxe5 10. Qd6 Re8 11. Bc4 Qe7 12. Rad1 Qxd6 13. Rxd6 Bf8 14. Rdd1 Kg7
*

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc: classical system (5.Be2)"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. h3 Nbd7 (
7... b5 8. e5 dxe5 9. Nxe5) 8. e5 (8. Bf4 Qa5 9. Qd2 e5 10. dxe5 dxe5 11. Bh6
Re8) 8... Ne8 (8... Nd5 9. Nxd5 cxd5 10. exd6 exd6) 9. Re1 dxe5 10. dxe5 Nc7
11. Bf1 Ne6 *

[Event "?"]
[Site "?"]
[Date "????.??.??"]
[Round "?"]
[White "?"]
[Black "?"]
[Result "*"]
[ECO "B08"]
[Opening "Pirc: classical system (5.Be2)"]

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6 7. Re1 Nbd7 8. Bf4
Qc7 9. e5 Nh5 10. exd6 exd6 11. Bg5 Re8 *

