MentoChessGet the app

Sicilian Defense

What is the Sicilian Defense?

The Sicilian Defense is a chess opening that begins with 1. e4 c5. It is classified under ECO B20–B99 and has 400 named variations. Black chooses it with the move c5.

a8b7c6d5e4f3g2h1

Moves: 1. e4 c5

ECO: B20–B99

Chosen by: Black

Main variations

a8b7c6d5e4f3g2h1
Sicilian Defense B27
1. e4 c5 2. Nf3
a8b7c6d5e4f3g2h1
Alapin Variation B22
1. e4 c5 2. c3
a8b7c6d5e4f3g2h1
Amazon Attack B20
1. e4 c5 2. Qg4
a8b7c6d5e4f3g2h1
Bowdler Attack B20
1. e4 c5 2. Bc4
a8b7c6d5e4f3g2h1
Brick Variation B20
1. e4 c5 2. Nh3
a8b7c6d5e4f3g2h1
Closed B23
1. e4 c5 2. Nc3

All 400 variations

ECOVariationMoves
B20Main line1. e4 c5
B27Main line1. e4 c5 2. Nf3
B22Alapin Variation1. e4 c5 2. c3
B20Amazon Attack1. e4 c5 2. Qg4
B20Bowdler Attack1. e4 c5 2. Bc4
B20Brick Variation1. e4 c5 2. Nh3
B23Closed1. e4 c5 2. Nc3
B20Czerniak Attack1. e4 c5 2. b3
B20Grob Variation1. e4 c5 2. g4
B20Keres Variation1. e4 c5 2. Ne2
B20King David's Opening1. e4 c5 2. Ke2
B20Kronberger Variation1. e4 c5 2. Na3
B20Lasker-Dunne Attack1. e4 c5 2. g3
B21McDonnell Attack1. e4 c5 2. f4
B20Mengarini Variation1. e4 c5 2. a3
B20Myers Attack, with a41. e4 c5 2. a4
B20Myers Attack, with h41. e4 c5 2. h4
B21Smith-Morra Gambit1. e4 c5 2. d4
B20Staunton-Cochrane Variation1. e4 c5 2. c4
B20Wing Gambit1. e4 c5 2. b4
B27Brussels Gambit1. e4 c5 2. Nf3 f5
B27Bücker Variation1. e4 c5 2. Nf3 h6
B23Closed1. e4 c5 2. Nc3 e6
B23Closed, Traditional1. e4 c5 2. Nc3 Nc6
B20Czerniak Attack, Queen Fianchetto Variation1. e4 c5 2. b3 b6
B40French Variation1. e4 c5 2. Nf3 e6
B27Hyperaccelerated Dragon1. e4 c5 2. Nf3 g6
B27Jalalabad Variation1. e4 c5 2. Nf3 e5
B27Katalimov Variation1. e4 c5 2. Nf3 b6
B50Modern Variations1. e4 c5 2. Nf3 d6
B27Mongoose Variation1. e4 c5 2. Nf3 Qa5
B29Nimzowitsch Variation1. e4 c5 2. Nf3 Nf6
B28O'Kelly Variation1. e4 c5 2. Nf3 a6
B30Old Sicilian1. e4 c5 2. Nf3 Nc6
B27Polish Gambit1. e4 c5 2. Nf3 b5
B27Quinteros Variation1. e4 c5 2. Nf3 Qc7
B50Main line1. e4 c5 2. Nf3 d6 3. d4
B23Closed1. e4 c5 2. Nc3 e6 3. g3
B23Closed, Chameleon Variation1. e4 c5 2. Nc3 Nc6 3. Nge2
B24Closed, Fianchetto Variation1. e4 c5 2. Nc3 Nc6 3. g3
B23Closed, Grob Attack1. e4 c5 2. Nc3 Nc6 3. g4
B50Delayed Alapin Variation, with d61. e4 c5 2. Nf3 d6 3. c3
B40Delayed Alapin Variation, with e61. e4 c5 2. Nf3 e6 3. c3
B20Euwe Attack, Prins Gambit1. e4 c5 2. b3 d5 3. Bb2
B40French Variation, Westerinen Attack1. e4 c5 2. Nf3 e6 3. b3
B23Grand Prix Attack1. e4 c5 2. Nc3 Nc6 3. f4
B21Halasz Gambit1. e4 c5 2. d4 cxd4 3. f4
B27Hyperaccelerated Dragon1. e4 c5 2. Nf3 g6 3. d4
B50Kopec System1. e4 c5 2. Nf3 d6 3. Bd3
B40Kramnik Variation1. e4 c5 2. Nf3 e6 3. c4
B21McDonnell Attack, Toilet Variation1. e4 c5 2. f4 d5 3. Nc3
B21Morphy Gambit1. e4 c5 2. d4 cxd4 3. Nf3
B51Moscow Variation1. e4 c5 2. Nf3 d6 3. Bb5+
B29Nimzowitsch Variation, Advance Variation1. e4 c5 2. Nf3 Nf6 3. e5
B29Nimzowitsch Variation, Closed Variation1. e4 c5 2. Nf3 Nf6 3. Nc3
B30Nyezhmetdinov-Rossolimo Attack1. e4 c5 2. Nf3 Nc6 3. Bb5
B28O'Kelly Variation, Aronin System1. e4 c5 2. Nf3 a6 3. Be2
B28O'Kelly Variation, Kieseritzky System1. e4 c5 2. Nf3 a6 3. b3
B28O'Kelly Variation, Maróczy Bind1. e4 c5 2. Nf3 a6 3. c4
B28O'Kelly Variation, Normal System1. e4 c5 2. Nf3 a6 3. d4
B28O'Kelly Variation, Quiet System1. e4 c5 2. Nf3 a6 3. d3
B28O'Kelly Variation, Réti System1. e4 c5 2. Nf3 a6 3. g3
B28O'Kelly Variation, Venice System1. e4 c5 2. Nf3 a6 3. c3
B28O'Kelly Variation, Wing Gambit1. e4 c5 2. Nf3 a6 3. b4
B28O'Kelly Variation, Yerevan System1. e4 c5 2. Nf3 a6 3. Nc3
B32Open1. e4 c5 2. Nf3 Nc6 3. d4
B30Portsmouth Gambit1. e4 c5 2. Nf3 Nc6 3. b4
B21Smith-Morra Gambit1. e4 c5 2. d4 cxd4 3. c3
B40Wing Gambit Deferred1. e4 c5 2. Nf3 e6 3. b4
B20Wing Gambit, Abrahams Variation1. e4 c5 2. b4 cxb4 3. Bb2
B50Wing Gambit, Deferred Variation1. e4 c5 2. Nf3 d6 3. b4
B20Wing Gambit, Marshall Variation1. e4 c5 2. b4 cxb4 3. a3
B20Wing Gambit, Santasiere Variation1. e4 c5 2. b4 cxb4 3. c4
B50Main line1. e4 c5 2. Nf3 d6 3. d4 cxd4
B27Acton Extension1. e4 c5 2. Nf3 g6 3. c4 Bh6
B22Alapin Variation, Anti-Alapin Gambit1. e4 c5 2. c3 d5 3. exd5 Nf6
B22Alapin Variation, Barmen Defense1. e4 c5 2. c3 d5 3. exd5 Qxd5
B24Closed1. e4 c5 2. Nc3 Nc6 3. g3 g6
B30Closed, Anti-Sveshnikov Variation1. e4 c5 2. Nf3 Nc6 3. Nc3 e5
B23Closed, Korchnoi Defense1. e4 c5 2. Nc3 e6 3. g3 d5
B27Double-Dutch Gambit1. e4 c5 2. Nf3 f5 3. exf5 Nh6
B40Drazic Variation1. e4 c5 2. Nf3 e6 3. d4 a6
B32Franco-Sicilian Variation1. e4 c5 2. Nf3 Nc6 3. d4 e6
B27Frederico Variation1. e4 c5 2. Nf3 g6 3. d4 f5
B40French Variation, Open1. e4 c5 2. Nf3 e6 3. d4 cxd4
B27Hyperaccelerated Pterodactyl1. e4 c5 2. Nf3 g6 3. d4 Bg7
B50Kotov Gambit1. e4 c5 2. Nf3 d6 3. g3 b5
B40Marshall Counterattack1. e4 c5 2. Nf3 e6 3. d4 d5
B21McDonnell Attack1. e4 c5 2. f4 Nc6 3. Nf3 e6
B21McDonnell Attack, Tal Gambit1. e4 c5 2. f4 d5 3. exd5 Nf6
B50Modern Variations, Anti-Qxd4 Move Order1. e4 c5 2. Nf3 d6 3. d4 Nf6
B52Moscow Variation, Main Line1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7
B30Nyezhmetdinov-Rossolimo Attack, Brooklyn Retreat Defense1. e4 c5 2. Nf3 Nc6 3. Bb5 Nb8
B31Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation1. e4 c5 2. Nf3 Nc6 3. Bb5 g6
B28O'Kelly Variation, Maróczy Bind, Paulsen Line1. e4 c5 2. Nf3 a6 3. c4 e6
B28O'Kelly Variation, Maróczy Bind, Robatsch Line1. e4 c5 2. Nf3 a6 3. c4 d6
B28O'Kelly Variation, Venice System, Barcza Line1. e4 c5 2. Nf3 a6 3. c3 Nf6
B28O'Kelly Variation, Venice System, Ljubojevic Line1. e4 c5 2. Nf3 a6 3. c3 b5
B28O'Kelly Variation, Venice System, Steiner Line1. e4 c5 2. Nf3 a6 3. c3 d6
B32Open1. e4 c5 2. Nf3 Nc6 3. d4 cxd4
B21Smith-Morra Gambit Accepted1. e4 c5 2. d4 cxd4 3. c3 dxc3
B21Smith-Morra Gambit Declined, Alapin Formation1. e4 c5 2. d4 cxd4 3. c3 Nf6
B21Smith-Morra Gambit Declined, Center Formation1. e4 c5 2. d4 cxd4 3. c3 e5
B21Smith-Morra Gambit Declined, Push Variation1. e4 c5 2. d4 cxd4 3. c3 d3
B21Smith-Morra Gambit Declined, Scandinavian Formation1. e4 c5 2. d4 cxd4 3. c3 d5
B21Smith-Morra Gambit Declined, Wing Formation1. e4 c5 2. d4 cxd4 3. c3 Qa5
B20Wing Gambit, Carlsbad Variation1. e4 c5 2. b4 cxb4 3. a3 bxa3
B20Big Clamp Formation1. e4 c5 2. d3 Nc6 3. c3 d6 4. f4
B53Chekhover Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4
B23Closed1. e4 c5 2. Nc3 e6 3. Nge2 a6 4. g3
B23Closed, Portland Attack1. e4 c5 2. Nc3 Nc6 3. d3 g6 4. g4
B20Kronberger Variation, Nemeth Gambit1. e4 c5 2. Na3 Nc6 3. d4 cxd4 4. Bc4
B21McDonnell Attack1. e4 c5 2. f4 Nc6 3. Nf3 e6 4. d3
B50Modern Variations, Tartakower1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. c3
B21Morphy Gambit, Andreaschek Gambit1. e4 c5 2. d4 cxd4 3. Nf3 e5 4. c3
B30Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. b4
B28O'Kelly Variation, Normal System, Cortlever Gambit1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Bc4
B28O'Kelly Variation, Normal System, Smith-Morra Line1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. c3
B28O'Kelly Variation, Normal System, Zagorovsky Line1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Qxd4
B32Open1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4
B21Smith-Morra Gambit Accepted, Danish Variation1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nf3
B21Smith-Morra Gambit Declined, Dubois Variation1. e4 c5 2. d4 cxd4 3. c3 d3 4. c4
B40Smith-Morra Gambit Deferred1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3
B32Accelerated Dragon1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6
B22Alapin Variation, Smith-Morra Declined1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4
B23Closed1. e4 c5 2. Nc3 e6 3. f4 Nc6 4. Nf3 d5
B24Closed1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7
B54Dragon Variation, Accelerated Dragon1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 g6
B32Flohr Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7
B40French Variation, Normal1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6
B20Gloria Variation1. e4 c5 2. c4 d6 3. Nc3 Nc6 4. g3 h5
B32Godiva Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6
B41Kan Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6
B40Kveinis Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Qb6
B32Löwenthal Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5
B21McDonnell Attack1. e4 c5 2. f4 Nc6 3. Nf3 g6 4. Bb5 Bg7
B50Modern Variations, Anti-Qxd4 Move Order Accepted1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. dxc5 Nxe4
B54Modern Variations, Main Line1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6
B32Nimzo-American Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5
B29Nimzowitsch Variation, Exchange Variation1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 Nxc3
B28O'Kelly Variation, Normal System, Taimanov Line1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 e5
B28O'Kelly Variation, Venice System, Gambit Line1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Nf6
B33Open1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6
B40Paulsen-Basman Defense1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Bc5
B21Smith-Morra Gambit Accepted, Fianchetto Defense1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 g6
B44Taimanov Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6
B34Accelerated Dragon, Exchange Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6
B36Accelerated Dragon, Maróczy Bind1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4
B34Accelerated Dragon, Modern Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3
B22Alapin Variation, Barmen Defense1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 g6 5. Nf3
B22Alapin Variation, Barmen Defense1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3
B23Closed1. e4 c5 2. Nc3 e6 3. f4 Nc6 4. Nf3 d5 5. Bb5
B23Closed, Carlsen Variation1. e4 c5 2. Nc3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Qd2
B21Coles Sicilian Gambit1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qd1 Nf6 5. Bc4
B22Heidenfeld Variation1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Na3
B43Kan Variation, Knight Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3
B41Kan Variation, Maróczy Bind, Réti Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4
B42Kan Variation, Modern Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3
B54Modern Variations, Ginsberg Gambit1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bc4
B52Moscow Variation, Sokolsky Variation1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4
B54Prins Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3
B45Taimanov Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3
B44Taimanov Variation, Szén Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5
B20Wing Gambit, Marienbad Variation1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Bb2
B37Accelerated Dragon, Maróczy Bind1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7
B22Alapin Variation, Barmen Defense, Modern Line1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4
B40Alapin Variation, Sherzer Variation1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. e5 Nd5 5. d4 Nc6
B53Chekhover Variation, Zaitsev Defense1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Qd7
B56Classical Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6
B25Closed1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6
B30Closed, Anti-Sveshnikov Variation, with d61. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 d6
B30Closed, Anti-Sveshnikov Variation, with Nf61. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 Nf6
B22Delayed Alapin Variation1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6
B70Dragon Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6
B45Four Knights Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6
B40Gaw-Paw Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Qb6
B32Kalashnikov Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6
B41Kan Variation, Maróczy Bind, Hedgehog Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 g6
B42Kan Variation, Polugaevsky Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5
B42Kan Variation, Swiss Cheese Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 g6
B43Kan Variation, Wing Attack1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5
B56Kupreichik Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bd7
B33Lasker-Pelikan Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5
B21McDonnell Attack1. e4 c5 2. f4 Nc6 3. Nf3 g6 4. Bb5 Bg7 5. c3 Nf6
B90Najdorf Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6
B32O'Kelly Variation, Maróczy Bind, Geller Line1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 a6 5. c4 e5
B40Pin Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4
B80Scheveningen Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6
B21Smith-Morra Gambit Accepted, Fianchetto Defense1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 g6
B21Smith-Morra Gambit Accepted, Fianchetto Defense1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 d6 5. Nf3 g6
B21Smith-Morra Gambit Accepted, Kan Formation1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 a6
B46Taimanov Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6
B47Taimanov Variation, Bastrikov Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7
B38Accelerated Dragon, Maróczy Bind1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3
B22Alapin Variation, Stoltz Attack1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Bc4 Nb6 6. Bb3
B58Classical Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2
B56Classical Variation, Fianchetto Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3
B57Classical Variation, Sozin Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4
B25Closed1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4
B26Closed1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3
B72Dragon Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3
B70Dragon Variation, Classical Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2
B70Dragon Variation, Fianchetto Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. g3
B71Dragon Variation, Levenfish Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4
B45Four Knights Variation, Exchange Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Nxc6
B23Grand Prix Attack, Schofman Variation1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bc4 e6 6. f5
B40Kan Variation, Wing Attack, Fianchetto Variation1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. g3 b5 5. d4 cxd4 6. Nxd4
B33Lasker-Pelikan Variation, Exchange Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nxc6
B33Lasker-Pelikan Variation, Retreat Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf3
B33Lasker-Pelikan Variation, Schlechter Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3
B51Moscow Variation, Dorfman Gambit1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Qe2 g6 6. e5
B94Najdorf Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5
B90Najdorf Variation, Adams Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3
B93Najdorf Variation, Amsterdam Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4
B90Najdorf Variation, Dekker Gambit1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g4
B90Najdorf Variation, English Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3
B90Najdorf Variation, Lipnitsky Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4
B92Najdorf Variation, Opocensky Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2
B90Najdorf Variation, Petronić Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Rg1
B90Najdorf Variation, Yates Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bd3
B91Najdorf Variation, Zagreb Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3
B31Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Gufeld Gambit1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 e5 6. d4
B31Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Lutikov Gambit1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. d4
B31Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Totsky Attack1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. c3 Nf6 6. Qa4
B31Nyezhmetdinov-Rossolimo Attack, Gurgenidze Variation1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. b4
B40Pin Variation, Koch Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5
B55Prins Variation, Venice Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Bb5+
B60Richter-Rauzer Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5
B83Scheveningen Variation, Classical Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2
B80Scheveningen Variation, Fianchetto Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3
B81Scheveningen Variation, Keres Attack1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4
B82Scheveningen Variation, Matanovic Attack1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4
B80Scheveningen Variation, Vitolins Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bb5+
B86Sozin Attack1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4
B56Spielmann Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Nde2
B48Taimanov Variation, Bastrikov Variation, English Attack1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3
B56Venice Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Bb5+
B22Alapin Variation, Barmen Defense, Central Exchange1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4
B58Boleslavsky Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5
B57Classical Variation, Anti-Sozin Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Qb6
B30Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 d6 6. Nd2 Bg5
B25Closed, Botvinnik Defense, with f41. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5
B25Closed, Botvinnik Defense, with Nge21. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 e5
B50Delayed Alapin Variation, Basman-Palatnik Gambit1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nc6 5. d4 cxd4 6. cxd4 Nxe4
B71Dragon Variation, Levenfish Variation, Main Line1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nbd7
B45Four Knights Variation, Cobra Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 Bc5
B45Four Knights Variation, Sveshnikov Transfer1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 d6
B27Hyperaccelerated Pterodactyl, Exchange Variation1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 Bxc3+ 6. bxc3 Qxc3+
B95Najdorf Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6
B90Najdorf Variation, English Attack, Anti-English1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4
B29Nimzowitsch Variation, Main Line1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 e6 5. Nxd5 exd5 6. d4 Nc6
B40Pin Variation, Jaffe Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd3 e5
B62Richter-Rauzer Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6
B60Richter-Rauzer Variation, Dragon Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 g6
B60Richter-Rauzer Variation, Modern Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7
B84Scheveningen Variation, Classical Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6
B83Scheveningen Variation, Modern Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Be2 Nf6
B21Smith-Morra Gambit Accepted, Fianchetto Defense1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 g6
B21Smith-Morra Gambit Accepted, Morphy Defense1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Bc5
B21Smith-Morra Gambit Accepted, Paulsen Formation1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 a6
B21Smith-Morra Gambit Accepted, Pin Defense1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Bb4
B21Smith-Morra Gambit Accepted, Scheveningen Formation1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6
B21Smith-Morra Gambit Accepted, Siberian Variation1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Qc7
B21Smith-Morra Gambit Accepted, Taimanov Formation1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Bc4 a6 6. Nf3 Ne7
B88Sozin Attack, Leonhardt Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6
B35Accelerated Dragon, Modern Bc4 Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4
B59Boleslavsky Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3
B58Boleslavsky Variation, Louma Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nxc6
B24Closed, Smyslov Variation1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 Nd4 7. Nce2
B22Delayed Alapin Variation1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 exd5 5. Bb5+ Nc6 6. O-O Bd6 7. d4
B72Dragon Variation, Classical Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2
B75Dragon Variation, Yugoslav Attack, Early Deviations1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3
B45Four Knights Variation, American Attack1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 Bb4 7. Nd6+
B43Kan Variation, Knight Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. g3 Bb7 7. Bg2
B43Kan Variation, Wing Attack, Spraggett Attack1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Nf3
B52Moscow Variation, Haag Gambit1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. O-O Nc6 6. c3 Nf6 7. d4
B96Najdorf Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4
B62Richter-Rauzer Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd3
B62Richter-Rauzer Variation, Exchange Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Nxc6
B61Richter-Rauzer Variation, Modern Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Bd7 7. Qd2
B62Richter-Rauzer Variation, Podebrady Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 e6 7. Nb3
B63Richter-Rauzer Variation, Traditional Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2
B62Richter-Rauzer Variation, Vitolins Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Bb5
B90Scheveningen Variation, Delayed Keres Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. g4
B90Scheveningen Variation, English Attack, with f31. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. f3
B80Scheveningen Variation, English Attack, with Qd21. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e6 7. Qd2
B89Sozin Attack, Main Line1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3
B49Taimanov Variation, Bastrikov Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2
B20Wing Gambit, Nanu Gambit1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. c4 Qe6 7. Bd3
B39Accelerated Dragon, Maróczy Bind, Breyer Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3 Nf6 7. Nc3 Ng4
B36Accelerated Dragon, Maróczy Bind, Gurgenidze Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Nf6 6. Nc3 Nxd4 7. Qxd4 d6
B37Accelerated Dragon, Simagin Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Nc2 d6 7. Be2 Nh6
B58Classical Variation, Dragon Transfer1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 Nxd4 7. Qxd4 g6
B25Closed, Botvinnik Defense, Edge Variation1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5 7. Nh3 Nge7
B72Dragon Variation, Classical Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6
B35Dragon Variation, Modern Bc4 Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3 Bg7 6. Be3 Nf6 7. Bc4 d6
B76Dragon Variation, Yugoslav Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O
B75Dragon Variation, Yugoslav Attack, Belezky Line1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 Nc6
B75Dragon Variation, Yugoslav Attack, Hungarian Dragon1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Nc6 7. f3 h5
B42Kan Variation, Gipslis Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Nf6 6. O-O d6 7. c4 g6
B41Kan Variation, Maróczy Bind, Bronstein Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6
B21McDonnell Attack1. e4 c5 2. f4 Nc6 3. Nf3 g6 4. Bb5 Bg7 5. Bxc6 bxc6 6. O-O d6 7. d3 Nf6
B98Najdorf Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7
B96Najdorf Variation, Neo-Classical Defense1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Nc6
B97Najdorf Variation, Poisoned Pawn Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6
B96Najdorf Variation, Polugaevsky Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5
B84Najdorf Variation, Scheveningen Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Nbd7
B63Richter-Rauzer Variation, Classical Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7
B63Richter-Rauzer Variation, Ivanov Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Qb6
B66Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 a6
B84Scheveningen Variation, Classical Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6 7. O-O Qc7
B21Smith-Morra Gambit Accepted, Chicago Defense1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 d6 5. Nf3 e6 6. Bc4 Nf6 7. O-O a6
B21Smith-Morra Gambit Accepted, Classical Formation1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 a6 7. O-O Nf6
B87Sozin Attack, Flank Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4 e6 7. Bb3 b5
B20Wing Gambit, Romanian Defense1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. Bb2 Nc6 7. c4 Qe6
B22Alapin Variation, Barmen Defense, Milner-Barry Attack1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nc6 5. Nf3 cxd4 6. cxd4 e5 7. Nc3 Bb4 8. Be2
B72Dragon Variation, Classical Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2 Nc6 8. Nb3
B73Dragon Variation, Classical Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O Nc6 8. Be3
B72Dragon Variation, Classical Variation, Amsterdam Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 g6 7. Be3 Bg7 8. Qd2
B41Kan Variation, Maróczy Bind, Bronstein Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 Nf6 6. Nc3 Bb4 7. Bd3 Nc6 8. Bc2
B43Kan Variation, Wing Attack, Christiansen's Dream1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5 6. Bd3 Qb6 7. Be3 Bc5 8. Qg4
B57Magnus Smith Trap1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 g6 7. Nxc6 bxc6 8. e5
B90Najdorf Variation, English Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. f3
B90Najdorf Variation, English Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. f3
B90Najdorf Variation, English Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be6 8. h3
B90Najdorf Variation, English Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 e5 7. Nb3 Be7 8. h3
B92Najdorf Variation, Opocensky Variation1. e4 c5 2. Nf3 Nf6 3. Nc3 d6 4. d4 cxd4 5. Nxd4 a6 6. Be2 e5 7. Nb3 Be6 8. Be3
B82Scheveningen Variation, Tal Variation1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4 Nc6 7. Be3 Be7 8. Qf3
B47Taimanov Variation, Bastrikov Variation, Ponomariov Gambit1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Ndb5 Qb8 7. Be3 a6 8. Bb6
B89Velimirovic Attack1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 Be7 8. Qe2
B22Alapin Variation, Stoltz Attack, Ivanchuk Line1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Bc4 Nb6 6. Bb3 c4 7. Bc2 Qc7 8. Qe2 g5
B76Dragon Variation, Yugoslav Attack1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3 O-O 8. Qd2 Nc6
B33Lasker-Pelikan Variation, Bird Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 Be6
B33Lasker-Pelikan Variation, Sveshnikov Variation1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Ndb5 d6 7. Bg5 a6 8. Na3 b5
B92Najdorf Variation, Opocensky Variation, Modern Line1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e5 7. Nb3 Be7 8. O-O Be6
B92Najdorf Variation, Opocensky Variation, Traditional Line1. 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
B98Najdorf Variation, Traditional Line1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7 8. Qf3 Qc7
B67Richter-Rauzer Variation, Neo-Modern Variation1. 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
B85Scheveningen Variation, Classical Variation, Paulsen Variation1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4 e6 7. Be2 Qc7 8. O-O Nc6
B21Smith-Morra Gambit Accepted, Finegold Defense1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 d6 6. Bc4 a6 7. O-O Be7 8. Qe2 Nf6
B21Smith-Morra Gambit Accepted, Larsen Defense1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Qc7 7. Qe2 a6 8. O-O Bd6
B21Smith-Morra Gambit Accepted, Morphy Defense Deferred1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 a6 7. O-O b5 8. Bb3 Bc5
B21Smith-Morra Gambit Accepted, Siberian Variation, Siberian Trap1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Qc7 7. Qe2 Nf6 8. O-O Ng4
B21Smith-Morra Gambit Accepted, Sozin Formation1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Bc4 e6 6. Nf3 d6 7. O-O a6 8. Qe2 b5
B44Taimanov Variation, Gary Gambit1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5 d6 6. c4 Nf6 7. N1c3 a6 8. Na3 d5
B50Delayed Alapin Variation, Basman-Palatnik Double Gambit1. 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
B73Dragon Variation, Classical Variation, Battery Variation1. 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
B72Dragon Variation, Classical Variation, Grigoriev Variation1. 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
B74Dragon Variation, Classical Variation, Normal Line1. 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
B77Dragon Variation, Yugoslav Attack, Main Line1. 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
B76Dragon Variation, Yugoslav Attack, Modern Line1. 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
B76Dragon Variation, Yugoslav Attack, Panov Variation1. 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
B33Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk Variation1. 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
B51Moscow Variation, Moscow Gambit1. 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
B64Richter-Rauzer Variation, Classical Variation1. 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
B85Scheveningen Variation, Classical Variation, Paulsen Variation1. 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. f4
B90Scheveningen Variation, Delayed Keres Attack, Perenyi Gambit1. 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
B83Scheveningen Variation, Modern Variation1. 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
B88Sozin Attack, Fischer Variation1. 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
B22Alapin Variation, Barmen Defense, Endgame Variation1. 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
B74Dragon Variation, Classical Variation, Alekhine Line1. 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
B77Dragon Variation, Yugoslav Attack, Byrne Variation1. 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
B77Dragon Variation, Yugoslav Attack, Main Line1. 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
B77Dragon Variation, Yugoslav Attack, Sosonko Variation1. 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
B98Najdorf Variation, Browne Variation1. 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
B98Najdorf Variation, Goteborg Variation1. 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
B99Najdorf Variation, Main Line1. 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
B97Najdorf Variation, Poisoned Pawn Accepted1. 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
B64Richter-Rauzer Variation, Classical Variation1. 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 e5
B68Richter-Rauzer Variation, Neo-Modern Variation1. 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
B65Richter-Rauzer Variation, Rauzer Attack1. 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
B21Smith-Morra Gambit Accepted, Chicago Defense1. 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 Ra7
B73Dragon Variation, Classical Variation, Zollner Gambit1. 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
B78Dragon Variation, Yugoslav Attack1. 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
B77Dragon Variation, Yugoslav Attack, Main Line1. 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
B96Najdorf Variation, Polugaevsky Variation, Simagin Line1. 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
B65Richter-Rauzer Variation, Classical Variation1. 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
B85Scheveningen Variation, Classical Variation, Paulsen Variation1. 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
B83Scheveningen Variation, Modern Variation1. 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
B74Dragon Variation, Classical Variation, Maróczy Line1. 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
B74Dragon Variation, Classical Variation, Tartakower Line1. 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
B78Dragon Variation, Yugoslav Attack, Chinese Dragon1. 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
B77Dragon Variation, Yugoslav Attack, Czerniak Variation1. 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
B78Dragon Variation, Yugoslav Attack, Old Line1. 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
B33Lasker-Pelikan Variation, Sveshnikov Variation1. 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
B33Lasker-Pelikan Variation, Sveshnikov Variation, Novosibirsk Variation1. 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
B63Richter-Rauzer Variation, Classical Variation, Kantscher Line1. 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
B85Scheveningen Variation, Classical Main Line1. 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
B89Sozin Attack, Main Line, Sherbakov Variation1. 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
B44Taimanov Variation, Modern Line1. 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
B33Lasker-Pelikan Variation, Sveshnikov Variation, Peresypkin's Sacrifice1. 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
B69Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov Attack1. 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
B77Dragon Variation, Yugoslav Attack, Czerniak Variation1. 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
B74Dragon Variation, Classical Variation, Spielmann Variation1. 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
B79Dragon Variation, Yugoslav Attack1. 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
B78Dragon Variation, Yugoslav Attack, Topalov Variation1. 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
B94Najdorf Variation, Ivkov Variation1. 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
B79Dragon Variation, Yugoslav Attack, Soltis Variation1. 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
B74Dragon Variation, Classical Variation, Bernard Defense1. 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
B74Dragon Variation, Classical Variation, Stockholm Attack1. 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

How to learn an opening

Learn the ideas before the moves: where the pieces go, which pawn breaks matter and what the typical middlegame plans are. Then play it, and after each game look up the point where you or your opponent left the known moves. MentoChess shows that point automatically for every game you import.

Opening lessons: Three golden opening rules · Scholar’s mate and how to stop it · Italian Game: plans, not just moves · Answering 1.d4: the Queen’s Gambit Declined · Meeting the Sicilian with 2.c3 · From moves to structures

Other openings starting 1. e4

Ruy LopezFrench DefenseItalian GameKing's Gambit AcceptedCaro-Kann DefenseAlekhine DefenseKing's Gambit DeclinedScotch GamePetrov's DefenseFour Knights GameScandinavian DefensePhilidor Defense