ECO family guide
Sicilian Defense — all variations and ECO codes
391 named lines across 80 ECO codes (B20–B99). Source: the CC0-licensed lichess.org opening database.
The main line
How the main line scores at your rating
Real Lichess win rates for 1.e4 c5, playing as black — the family's other variations are not separately tracked for win rate yet, main line only.
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| Rating band | Games | White / draw / Black | Score for black |
|---|---|---|---|
| 1400-1600 | 89,819,085 | 47.3% / 3.6% / 49.0% | 50.8% |
| 1600-1800 | 124,922,537 | 47.6% / 4.0% / 48.4% | 50.4% |
| 1800-2000 | 127,185,293 | 47.9% / 4.6% / 47.5% | 49.8% |
| 2000+ | 109,729,703 | 48.0% / 5.9% / 46.1% | 49.1% |
All 391 named variations
Every named line in the Sicilian Defense family, from the CC0-licensed ECO classification — not separately tracked for win rate, but every ECO code and move sequence is real, sourced data.
- B20Sicilian Defense (main line) — 1.e4 c5
- B27Sicilian Defense (main line) — 1.e4 c5 2.Nf3
- B50Sicilian Defense (main line) — 1.e4 c5 2.Nf3 d6 3.d4
- B50Sicilian Defense (main line) — 1.e4 c5 2.Nf3 d6 3.d4 cxd4
- B20Amazon Attack — 1.e4 c5 2.Qg4
- B20Big Clamp Formation — 1.e4 c5 2.d3 Nc6 3.c3 d6 4.f4
- B20Bowdler Attack — 1.e4 c5 2.Bc4
- B20Brick Variation — 1.e4 c5 2.Nh3
- B20Czerniak Attack — 1.e4 c5 2.b3
- B20Queen Fianchetto Variation — 1.e4 c5 2.b3 b6
Euwe Attack
- B20Prins Gambit — 1.e4 c5 2.b3 d5 3.Bb2
- B20Gloria Variation — 1.e4 c5 2.c4 d6 3.Nc3 Nc6 4.g3 h5
- B20Grob Variation — 1.e4 c5 2.g4
- B20Keres Variation — 1.e4 c5 2.Ne2
- B20King David's Opening — 1.e4 c5 2.Ke2
- B20Kronberger Variation — 1.e4 c5 2.Na3
- B20Nemeth Gambit — 1.e4 c5 2.Na3 Nc6 3.d4 cxd4 4.Bc4
- B20Lasker-Dunne Attack — 1.e4 c5 2.g3
- B20Mengarini Variation — 1.e4 c5 2.a3
Myers Attack
- B20with a4 — 1.e4 c5 2.a4
- B20with h4 — 1.e4 c5 2.h4
- B20Staunton-Cochrane Variation — 1.e4 c5 2.c4
- B20Wing Gambit — 1.e4 c5 2.b4
- B20Abrahams Variation — 1.e4 c5 2.b4 cxb4 3.Bb2
- B20Carlsbad Variation — 1.e4 c5 2.b4 cxb4 3.a3 bxa3
- B20Marienbad Variation — 1.e4 c5 2.b4 cxb4 3.a3 d5 4.exd5 Qxd5 5.Bb2
- B20Marshall Variation — 1.e4 c5 2.b4 cxb4 3.a3
- B20Nanu Gambit — 1.e4 c5 2.b4 cxb4 3.a3 d5 4.exd5 Qxd5 5.Nf3 e5 6.c4 Qe6 7.Bd3
- B20Romanian Defense — 1.e4 c5 2.b4 cxb4 3.a3 d5 4.exd5 Qxd5 5.Nf3 e5 6.Bb2 Nc6 7.c4 Qe6
- B20Santasiere Variation — 1.e4 c5 2.b4 cxb4 3.c4
- B50Deferred Variation — 1.e4 c5 2.Nf3 d6 3.b4
- B21Coles Sicilian Gambit — 1.e4 c5 2.d4 cxd4 3.Qxd4 Nc6 4.Qd1 Nf6 5.Bc4
- B21Halasz Gambit — 1.e4 c5 2.d4 cxd4 3.f4
- B21McDonnell Attack — 1.e4 c5 2.f4
- B21Tal Gambit — 1.e4 c5 2.f4 d5 3.exd5 Nf6
- B21Toilet Variation — 1.e4 c5 2.f4 d5 3.Nc3
- B21Morphy Gambit — 1.e4 c5 2.d4 cxd4 3.Nf3
- B21Andreaschek Gambit — 1.e4 c5 2.d4 cxd4 3.Nf3 e5 4.c3
- B21Smith-Morra Gambit — 1.e4 c5 2.d4B21Smith-Morra Gambit — 1.e4 c5 2.d4 cxd4 3.c3
- B21Smith-Morra Gambit Accepted — 1.e4 c5 2.d4 cxd4 3.c3 dxc3
- B21Chicago Defense — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Bc4 e6 6.Nf3 d6 7.O-O a6 8.Qe2 b5 9.Bb3 Ra7B21Chicago Defense — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 d6 5.Nf3 e6 6.Bc4 Nf6 7.O-O a6
- B21Classical Formation — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 a6 7.O-O Nf6
- B21Danish Variation — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nf3
- B21Fianchetto Defense — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 g6B21Fianchetto Defense — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 g6B21Fianchetto Defense — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 g6B21Fianchetto Defense — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 d6 5.Nf3 g6
- B21Finegold Defense — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 e6 5.Nf3 d6 6.Bc4 a6 7.O-O Be7 8.Qe2 Nf6
- B21Kan Formation — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 e6 5.Nf3 a6
- B21Larsen Defense — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Qc7 7.Qe2 a6 8.O-O Bd6
- B21Morphy Defense — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bc5
- B21Morphy Defense Deferred — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 a6 7.O-O b5 8.Bb3 Bc5
- B21Paulsen Formation — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 a6
- B21Pin Defense — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bb4
- B21Scheveningen Formation — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 e6
- B21Siberian Variation — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Qc7
- B21Siberian Trap — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Qc7 7.Qe2 Nf6 8.O-O Ng4
- B21Sozin Formation — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Bc4 e6 6.Nf3 d6 7.O-O a6 8.Qe2 b5
- B21Taimanov Formation — 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 e6 5.Bc4 a6 6.Nf3 Ne7
Smith-Morra Gambit Declined
- B21Alapin Formation — 1.e4 c5 2.d4 cxd4 3.c3 Nf6
- B21Center Formation — 1.e4 c5 2.d4 cxd4 3.c3 e5
- B21Dubois Variation — 1.e4 c5 2.d4 cxd4 3.c3 d3 4.c4
- B21Push Variation — 1.e4 c5 2.d4 cxd4 3.c3 d3
- B21Scandinavian Formation — 1.e4 c5 2.d4 cxd4 3.c3 d5
- B21Wing Formation — 1.e4 c5 2.d4 cxd4 3.c3 Qa5
- B22Alapin Variation — 1.e4 c5 2.c3
- B22Anti-Alapin Gambit — 1.e4 c5 2.c3 d5 3.exd5 Nf6
- B22Barmen Defense — 1.e4 c5 2.c3 d5 3.exd5 Qxd5B22Barmen Defense — 1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 g6 5.Nf3B22Barmen Defense — 1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nc6 5.Nf3
- B22Central Exchange — 1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 cxd4 5.cxd4 Nc6 6.Nf3 Bg4
- B22Endgame Variation — 1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 cxd4 5.cxd4 Nc6 6.Nf3 Bg4 7.Nc3 Bxf3 8.gxf3 Qxd4 9.Qxd4 Nxd4
- B22Milner-Barry Attack — 1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nc6 5.Nf3 cxd4 6.cxd4 e5 7.Nc3 Bb4 8.Be2
- B22Modern Line — 1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 Bg4
- B22Smith-Morra Declined — 1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4
- B22Stoltz Attack — 1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.Nf3 Nc6 5.Bc4 Nb6 6.Bb3
- B22Ivanchuk Line — 1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.Nf3 Nc6 5.Bc4 Nb6 6.Bb3 c4 7.Bc2 Qc7 8.Qe2 g5
- B40Sherzer Variation — 1.e4 c5 2.Nf3 e6 3.c3 Nf6 4.e5 Nd5 5.d4 Nc6
- B22Delayed Alapin Variation — 1.e4 c5 2.Nf3 e6 3.c3 d5 4.exd5 Qxd5 5.d4 Nf6B22Delayed Alapin Variation — 1.e4 c5 2.Nf3 e6 3.c3 d5 4.exd5 exd5 5.Bb5+ Nc6 6.O-O Bd6 7.d4
- B40with e6 — 1.e4 c5 2.Nf3 e6 3.c3
- B50Basman-Palatnik Double Gambit — 1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Be2 Nc6 5.d4 cxd4 6.cxd4 Nxe4 7.d5 Qa5+ 8.Nc3 Nxc3 9.bxc3
- B50Basman-Palatnik Gambit — 1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Be2 Nc6 5.d4 cxd4 6.cxd4 Nxe4
- B50with d6 — 1.e4 c5 2.Nf3 d6 3.c3
- B22Heidenfeld Variation — 1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.Nf3 Nc6 5.Na3
- B23Closed — 1.e4 c5 2.Nc3B23Closed — 1.e4 c5 2.Nc3 e6B23Closed — 1.e4 c5 2.Nc3 e6 3.g3B24Closed — 1.e4 c5 2.Nc3 Nc6 3.g3 g6B24Closed — 1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7B25Closed — 1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6B25Closed — 1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4B26Closed — 1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Be3
- B23Carlsen Variation — 1.e4 c5 2.Nc3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Qd2
- B23Chameleon Variation — 1.e4 c5 2.Nc3 Nc6 3.Nge2
- B23Grob Attack — 1.e4 c5 2.Nc3 Nc6 3.g4
- B23Korchnoi Defense — 1.e4 c5 2.Nc3 e6 3.g3 d5
- B23Portland Attack — 1.e4 c5 2.Nc3 Nc6 3.d3 g6 4.g4
- B23Traditional — 1.e4 c5 2.Nc3 Nc6
- B24Fianchetto Variation — 1.e4 c5 2.Nc3 Nc6 3.g3
- B24Smyslov Variation — 1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 e6 6.Be3 Nd4 7.Nce2
Botvinnik Defense
- B25Edge Variation — 1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4 e5 7.Nh3 Nge7
- B25with Nge2 — 1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Nge2 e5
- B25with f4 — 1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4 e5
- B30Anti-Sveshnikov Variation — 1.e4 c5 2.Nf3 Nc6 3.Nc3 e5
- B30Kharlov-Kramnik Line — 1.e4 c5 2.Nf3 Nc6 3.Nc3 e5 4.Bc4 Be7 5.d3 d6 6.Nd2 Bg5
- B30with Nf6 — 1.e4 c5 2.Nf3 Nc6 3.Nc3 e5 4.Bc4 Be7 5.d3 Nf6
- B30with d6 — 1.e4 c5 2.Nf3 Nc6 3.Nc3 e5 4.Bc4 Be7 5.d3 d6
- B23Grand Prix Attack — 1.e4 c5 2.Nc3 Nc6 3.f4
- B23Schofman Variation — 1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bc4 e6 6.f5
- B27Acton Extension — 1.e4 c5 2.Nf3 g6 3.c4 Bh6
- B27Brussels Gambit — 1.e4 c5 2.Nf3 f5
- B27Bücker Variation — 1.e4 c5 2.Nf3 h6
- B27Double-Dutch Gambit — 1.e4 c5 2.Nf3 f5 3.exf5 Nh6
- B27Frederico Variation — 1.e4 c5 2.Nf3 g6 3.d4 f5
- B27Hyperaccelerated Dragon — 1.e4 c5 2.Nf3 g6B27Hyperaccelerated Dragon — 1.e4 c5 2.Nf3 g6 3.d4
- B27Hyperaccelerated Pterodactyl — 1.e4 c5 2.Nf3 g6 3.d4 Bg7
- B27Exchange Variation — 1.e4 c5 2.Nf3 g6 3.d4 Bg7 4.dxc5 Qa5+ 5.Nc3 Bxc3+ 6.bxc3 Qxc3+
- B27Jalalabad Variation — 1.e4 c5 2.Nf3 e5
- B27Katalimov Variation — 1.e4 c5 2.Nf3 b6
- B27Mongoose Variation — 1.e4 c5 2.Nf3 Qa5
- B27Polish Gambit — 1.e4 c5 2.Nf3 b5
- B27Quinteros Variation — 1.e4 c5 2.Nf3 Qc7
- B28O'Kelly Variation — 1.e4 c5 2.Nf3 a6
- B28Aronin System — 1.e4 c5 2.Nf3 a6 3.Be2
- B28Kieseritzky System — 1.e4 c5 2.Nf3 a6 3.b3
- B28Maróczy Bind — 1.e4 c5 2.Nf3 a6 3.c4
- B28Paulsen Line — 1.e4 c5 2.Nf3 a6 3.c4 e6
- B28Robatsch Line — 1.e4 c5 2.Nf3 a6 3.c4 d6
- B32Geller Line — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 a6 5.c4 e5
- B28Normal System — 1.e4 c5 2.Nf3 a6 3.d4
- B28Cortlever Gambit — 1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.Bc4
- B28Smith-Morra Line — 1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.c3
- B28Taimanov Line — 1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.Nxd4 e5
- B28Zagorovsky Line — 1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.Qxd4
- B28Quiet System — 1.e4 c5 2.Nf3 a6 3.d3
- B28Réti System — 1.e4 c5 2.Nf3 a6 3.g3
- B28Venice System — 1.e4 c5 2.Nf3 a6 3.c3
- B28Barcza Line — 1.e4 c5 2.Nf3 a6 3.c3 Nf6
- B28Gambit Line — 1.e4 c5 2.Nf3 a6 3.c3 d5 4.exd5 Nf6
- B28Ljubojevic Line — 1.e4 c5 2.Nf3 a6 3.c3 b5
- B28Steiner Line — 1.e4 c5 2.Nf3 a6 3.c3 d6
- B28Wing Gambit — 1.e4 c5 2.Nf3 a6 3.b4
- B28Yerevan System — 1.e4 c5 2.Nf3 a6 3.Nc3
- B29Nimzowitsch Variation — 1.e4 c5 2.Nf3 Nf6
- B29Advance Variation — 1.e4 c5 2.Nf3 Nf6 3.e5
- B29Closed Variation — 1.e4 c5 2.Nf3 Nf6 3.Nc3
- B29Exchange Variation — 1.e4 c5 2.Nf3 Nf6 3.e5 Nd5 4.Nc3 Nxc3
- B29Main Line — 1.e4 c5 2.Nf3 Nf6 3.e5 Nd5 4.Nc3 e6 5.Nxd5 exd5 6.d4 Nc6
- B30Nyezhmetdinov-Rossolimo Attack — 1.e4 c5 2.Nf3 Nc6 3.Bb5
- B30Brooklyn Retreat Defense — 1.e4 c5 2.Nf3 Nc6 3.Bb5 Nb8
- B30San Francisco Gambit — 1.e4 c5 2.Nf3 Nc6 3.Bb5 Na5 4.b4
- B31Fianchetto Variation — 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6
- B31Gufeld Gambit — 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 e5 6.d4
- B31Lutikov Gambit — 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 Nf6 6.d4
- B31Totsky Attack — 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 Nf6 6.Qa4
- B31Gurgenidze Variation — 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 e5 6.b4
- B30Old Sicilian — 1.e4 c5 2.Nf3 Nc6
- B30Portsmouth Gambit — 1.e4 c5 2.Nf3 Nc6 3.b4
- B32Accelerated Dragon — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6
- B34Exchange Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nxc6
- B34Modern Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3
- B35Modern Bc4 Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4
- B36Maróczy Bind — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4B37Maróczy Bind — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7B38Maróczy Bind — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3
- B36Gurgenidze Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6
- B39Breyer Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3 Nf6 7.Nc3 Ng4
- B37Simagin Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Nc2 d6 7.Be2 Nh6
- B32Flohr Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7
- B32Franco-Sicilian Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 e6
- B32Godiva Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qb6
- B32Kalashnikov Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d6
- B32Löwenthal Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5
- B32Nimzo-American Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 d5
- B32Open — 1.e4 c5 2.Nf3 Nc6 3.d4B32Open — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4B32Open — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4B33Open — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6
- B33Lasker-Pelikan Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5
- B33Bird Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 Be6
- B33Exchange Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nxc6
- B33Retreat Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nf3
- B33Schlechter Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nb3
- B33Sveshnikov Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5B33Sveshnikov Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Bxf6 gxf6 10.Nd5 f5
- B33Chelyabinsk Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Nd5
- B33Novosibirsk Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Bxf6 gxf6 10.Nd5 Bg7
- B33Peresypkin's Sacrifice — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5 9.Bxf6 gxf6 10.Nd5 f5 11.Bxb5
- B70Dragon Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6B72Dragon Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3
- B35Modern Bc4 Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 d6
- B54Accelerated Dragon — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 g6
- B70Classical Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2B72Classical Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2B72Classical Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6B72Classical Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.Nb3B73Classical Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O Nc6 8.Be3
- B72Amsterdam Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 g6 7.Be3 Bg7 8.Qd2
- B72Grigoriev Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 g6 7.Be3 Bg7 8.Qd2 O-O 9.O-O-O
- B73Battery Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Be3 Nc6 9.Qd2
- B73Zollner Gambit — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Be3 Bg7 6.Be2 Nf6 7.Nc3 O-O 8.O-O d6 9.f4 Qb6 10.e5
- B74Alekhine Line — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Be2 O-O 8.O-O d6 9.Nb3 a5
- B74Bernard Defense — 1.e4 c5 2.Nf3 g6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Bg7 7.O-O O-O 8.Be3 Nc6 9.Nb3 Be6 10.f4 Na5 11.f5 Bc4 12.Bd3 Bxd3 13.cxd3 d5
- B74Maróczy Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Be3 Nc6 9.Nb3 Be6 10.f4 Na5
- B74Normal Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Be3 Nc6 9.Nb3
- B74Spielmann Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Be2 O-O 8.Nb3 d6 9.O-O Be6 10.f4 Na5 11.f5 Bc4 12.Bd3
- B74Stockholm Attack — 1.e4 c5 2.Nc3 d6 3.f4 Nc6 4.Nf3 g6 5.d4 cxd4 6.Nxd4 Bg7 7.Be3 Nf6 8.Be2 O-O 9.Nb3 Be6 10.O-O Na5 11.f5 Bc4 12.Nxa5 Bxe2 13.Qxe2 Qxa5 14.g4
- B74Tartakower Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2 Bg7 7.O-O O-O 8.Be3 Nc6 9.Nb3 Be6 10.f4 Qc8
- B70Fianchetto Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.g3
- B71Levenfish Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f4
- B71Main Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f4 Nbd7
- B76Yugoslav Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-OB76Yugoslav Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6B78Yugoslav Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-OB79Yugoslav Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.h4 Qa5 11.O-O-O Rfc8 12.Bb3
- B75Belezky Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6
- B75Early Deviations — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3
- B75Hungarian Dragon — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Nc6 7.f3 h5
- B76Modern Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 O-O 9.O-O-O
- B76Panov Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.g4
- B77Byrne Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 a5
- B77Czerniak Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 O-O 9.Bc4 Nxd4 10.Bxd4 Be6B77Czerniak Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 O-O 9.Bc4 Nxd4 10.Bxd4 Be6 11.Bb3 Qa5
- B77Main Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4B77Main Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7B77Main Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.Bb3
- B77Sosonko Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6 8.Qd2 O-O 9.Bc4 Nd7
- B78Chinese Dragon — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-O Rb8
- B78Old Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-O Rc8
- B78Topalov Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-O Rc8 11.Bb3 Nxd4 12.Bxd4
- B79Soltis Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O 8.Qd2 Nc6 9.Bc4 Bd7 10.O-O-O Qa5 11.h4 Rfc8 12.Bb3 h5
- B40Drazic Variation — 1.e4 c5 2.Nf3 e6 3.d4 a6
- B40French Variation — 1.e4 c5 2.Nf3 e6
- B40Normal — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6
- B40Open — 1.e4 c5 2.Nf3 e6 3.d4 cxd4
- B40Westerinen Attack — 1.e4 c5 2.Nf3 e6 3.b3
- B40Gaw-Paw Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Qb6
- B41Kan Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6
- B43Wing Attack — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 b5
- B40Fianchetto Variation — 1.e4 c5 2.Nf3 e6 3.Nc3 a6 4.g3 b5 5.d4 cxd4 6.Nxd4
- B43Christiansen's Dream — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 b5 6.Bd3 Qb6 7.Be3 Bc5 8.Qg4
- B43Spraggett Attack — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 b5 6.Bd3 Qb6 7.Nf3
Maróczy Bind
- B41Bronstein Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4 Nf6 6.Nc3 Bb4 7.Bd3 Nc6B41Bronstein Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4 Nf6 6.Nc3 Bb4 7.Bd3 Nc6 8.Bc2
- B41Hedgehog Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4 g6
- B41Réti Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4
- B42Gipslis Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O d6 7.c4 g6
- B42Modern Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3
- B42Polugaevsky Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Bc5
- B42Swiss Cheese Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 g6
- B43Knight Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3
- B40Kramnik Variation — 1.e4 c5 2.Nf3 e6 3.c4
- B40Kveinis Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Qb6
- B40Marshall Counterattack — 1.e4 c5 2.Nf3 e6 3.d4 d5
- B40Paulsen-Basman Defense — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Bc5
- B40Pin Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4
- B40Jaffe Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4 6.Bd3 e5
- B40Koch Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4 6.e5
- B40Smith-Morra Gambit Deferred — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.c3
- B40Wing Gambit Deferred — 1.e4 c5 2.Nf3 e6 3.b4
- B44Taimanov Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6B45Taimanov Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3B46Taimanov Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6
- B44Gary Gambit — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Na3 d5
- B44Modern Line — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 d6 6.c4 Nf6 7.N1c3 a6 8.Na3 Be7 9.Be2 O-O 10.O-O b6
- B44Szén Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5
- B47Bastrikov Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7B49Bastrikov Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2
- B47Ponomariov Gambit — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Ndb5 Qb8 7.Be3 a6 8.Bb6
- B48English Attack — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3
- B45Four Knights Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6
- B45American Attack — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Ndb5 Bb4 7.Nd6+
- B45Cobra Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Ndb5 Bc5
- B45Exchange Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Nxc6
- B45Sveshnikov Transfer — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Ndb5 d6
- B50Kopec System — 1.e4 c5 2.Nf3 d6 3.Bd3
- B50Kotov Gambit — 1.e4 c5 2.Nf3 d6 3.g3 b5
- B50Modern Variations — 1.e4 c5 2.Nf3 d6
- B50Anti-Qxd4 Move Order — 1.e4 c5 2.Nf3 d6 3.d4 Nf6
- B50Anti-Qxd4 Move Order Accepted — 1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.dxc5 Nxe4
- B50Tartakower — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.c3
- B54Ginsberg Gambit — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Bc4
- B54Main Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6
- B51Moscow Variation — 1.e4 c5 2.Nf3 d6 3.Bb5+
- B51Dorfman Gambit — 1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Qe2 g6 6.e5
- B51Moscow Gambit — 1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.c3 Nf6 6.Re1 a6 7.Bxc6 Bxc6 8.d4 Bxe4 9.Bg5
- B52Haag Gambit — 1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.c3 Nf6 7.d4
- B52Main Line — 1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7
- B52Sokolsky Variation — 1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4
- B53Chekhover Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4
- B53Zaitsev Defense — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Qd7
- B54Prins Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3
- B55Venice Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 e5 6.Bb5+
- B56Classical Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6B58Classical Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2
- B56Fianchetto Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.g3
- B57Anti-Sozin Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6
- B57Sozin Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4
- B58Dragon Transfer — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 Nxd4 7.Qxd4 g6
- B56Kupreichik Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bd7
- B56Spielmann Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Nde2
- B56Venice Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Bb5+
- B57Magnus Smith Trap — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 g6 7.Nxc6 bxc6 8.e5
- B58Boleslavsky Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5B59Boleslavsky Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nb3
- B58Louma Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nxc6
- B60Richter-Rauzer Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5B62Richter-Rauzer Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6B62Richter-Rauzer Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd3
- B60Dragon Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 g6
- B60Modern Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Bd7B61Modern Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Bd7 7.Qd2
- B62Exchange Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Nxc6
- B62Podebrady Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Nb3
- B62Vitolins Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Bb5
- B63Classical Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7B64Classical Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O O-O 9.f4 e5B64Classical Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O O-O 9.f4B65Classical Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O O-O 9.f4 Nxd4 10.Qxd4
- B63Kantscher Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O Nxd4 9.Qxd4 a6 10.f4 b5
- B63Ivanov Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Qb6
- B63Traditional Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2
- B65Rauzer Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7 8.O-O-O O-O 9.f4 Nxd4
- B67Neo-Modern Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7B68Neo-Modern Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 Be7
- B66Early Deviations — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6
- B69Nyezhmetdinov Attack — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Qd2 a6 8.O-O-O Bd7 9.f4 Be7 10.Nf3 b5 11.Bxf6
- B80Scheveningen Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6
English Attack
- B80with Qd2 — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.Qd2
- B90with f3 — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.f3
- B80Fianchetto Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g3
- B80Vitolins Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bb5+
- B81Keres Attack — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4
- B82Matanovic Attack — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4
- B82Tal Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Be3 Be7 8.Qf3
- B83Classical Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2B84Classical Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6B84Classical Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.O-O Qc7
- B85Paulsen Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4 e6 7.Be2 Qc7 8.O-O Nc6B85Paulsen Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be2 a6 7.O-O Nf6 8.Be3 d6 9.f4B85Paulsen Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be2 a6 7.O-O Nf6 8.Kh1 Be7 9.f4 d6 10.a4
- B83Modern Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be2 Nf6B83Modern Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.f4 Nc6 9.Be3B83Modern Variation — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 Be7 7.O-O O-O 8.f4 Nc6 9.Be3 Bd7 10.Nb3
- B85Classical Main Line — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be2 a6 7.O-O Nf6 8.Be3 Be7 9.f4 d6 10.Qe1 O-O
- B90Delayed Keres Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.g4
- B90Perenyi Gambit — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.g4 e5 8.Nf5 g6 9.g5
- B90Najdorf Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6B94Najdorf Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5B95Najdorf Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6B96Najdorf Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4B98Najdorf Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7
- B84Scheveningen Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.O-O Nbd7
- B90Adams Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3
- B90Dekker Gambit — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g4
- B90English Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3B90English Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.f3B90English Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be7 8.f3B90English Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.h3B90English Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be7 8.h3
- B90Anti-English — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 Ng4
- B90Lipnitsky Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4
- B90Petronić Attack — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Rg1
- B90Yates Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bd3
- B91Zagreb Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3
- B92Opocensky Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2B92Opocensky Variation — 1.e4 c5 2.Nf3 Nf6 3.Nc3 d6 4.d4 cxd4 5.Nxd4 a6 6.Be2 e5 7.Nb3 Be6 8.Be3
- B92Modern Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O Be6
- B92Traditional Line — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e5 7.Nb3 Be7 8.O-O O-O
- B93Amsterdam Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4
- B94Ivkov Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 Nbd7 7.Bc4 Qa5 8.Qd2 e6 9.O-O-O b5 10.Bb3 Bb7 11.Rhe1 Nc5 12.e5
- B96Neo-Classical Defense — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Nc6
- B96Polugaevsky Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 b5
- B96Simagin Line — 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
- B97Poisoned Pawn Accepted — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6 8.Qd2 Qxb2 9.Rb1 Qa3
- B97Poisoned Pawn Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6
- B98Browne Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 h6 9.Bh4 Qc7
- B98Goteborg Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7 8.Qf3 h6 9.Bh4 g5
- B98Traditional 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
- B99Main 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 9.O-O-O Nbd7
- B86Sozin Attack — 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4
- B87Flank Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 b5
- B88Fischer Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Bb3 Be7 8.Be3 O-O 9.f4
- B88Leonhardt Variation — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6
- B89Main Line — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Be3
- B89Sherbakov Variation — 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4 e6 7.Be3 Be7 8.Bb3 O-O 9.O-O Na5 10.f4 b6
- B89Velimirovic Attack — 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Be3 Be7 8.Qe2
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ECO Volume B: Semi-Open Games (other than the French Defense) → · All ECO families → · Search and play every line in the interactive explorer →
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