–

Sicilian Defense

1.e4 c5. ECO B20–B99, 400 named variations.

8
7
6
5
4
3
2
1a
b
c
d
e
f
g
h
B20

Sicilian Defense

Analyze with Stockfish
Tactics from the Sicilian Defense 200 puzzles

All Sicilian Defense variations

ECOVariation
B20 Sicilian Defense
1.e4 c5
B27 Sicilian Defense
1.e4 c5 2.Nf3
B22 Alapin Variation
1.e4 c5 2.c3
B20 Amazon Attack
1.e4 c5 2.Qg4
B20 Bowdler Attack
1.e4 c5 2.Bc4
B20 Brick Variation
1.e4 c5 2.Nh3
B23 Closed
1.e4 c5 2.Nc3
B20 Czerniak Attack
1.e4 c5 2.b3
B20 Grob Variation
1.e4 c5 2.g4
B20 Keres Variation
1.e4 c5 2.Ne2
B20 King David's Opening
1.e4 c5 2.Ke2
B20 Kronberger Variation
1.e4 c5 2.Na3
B20 Lasker-Dunne Attack
1.e4 c5 2.g3
B21 McDonnell Attack
1.e4 c5 2.f4
B20 Mengarini Variation
1.e4 c5 2.a3
B20 Myers Attack, with a4
1.e4 c5 2.a4
B20 Myers Attack, with h4
1.e4 c5 2.h4
B21 Smith-Morra Gambit
1.e4 c5 2.d4
B20 Staunton-Cochrane Variation
1.e4 c5 2.c4
B20 Wing Gambit
1.e4 c5 2.b4
B27 Brussels Gambit
1.e4 c5 2.Nf3 f5
B27 Bücker Variation
1.e4 c5 2.Nf3 h6
B23 Closed
1.e4 c5 2.Nc3 e6
B23 Closed, Traditional
1.e4 c5 2.Nc3 Nc6
B20 Czerniak Attack, Queen Fianchetto Variation
1.e4 c5 2.b3 b6
B40 French Variation
1.e4 c5 2.Nf3 e6
B27 Hyperaccelerated Dragon
1.e4 c5 2.Nf3 g6
B27 Jalalabad Variation
1.e4 c5 2.Nf3 e5
B27 Katalimov Variation
1.e4 c5 2.Nf3 b6
B50 Modern Variations
1.e4 c5 2.Nf3 d6
B27 Mongoose Variation
1.e4 c5 2.Nf3 Qa5
B29 Nimzowitsch Variation
1.e4 c5 2.Nf3 Nf6
B28 O'Kelly Variation
1.e4 c5 2.Nf3 a6
B30 Old Sicilian
1.e4 c5 2.Nf3 Nc6
B27 Polish Gambit
1.e4 c5 2.Nf3 b5
B27 Quinteros Variation
1.e4 c5 2.Nf3 Qc7
B50 Sicilian Defense
1.e4 c5 2.Nf3 d6 3.d4
B23 Closed
1.e4 c5 2.Nc3 e6 3.g3
B23 Closed, Chameleon Variation
1.e4 c5 2.Nc3 Nc6 3.Nge2
B24 Closed, Fianchetto Variation
1.e4 c5 2.Nc3 Nc6 3.g3
B23 Closed, Grob Attack
1.e4 c5 2.Nc3 Nc6 3.g4
B50 Delayed Alapin Variation, with d6
1.e4 c5 2.Nf3 d6 3.c3
B40 Delayed Alapin Variation, with e6
1.e4 c5 2.Nf3 e6 3.c3
B20 Euwe Attack, Prins Gambit
1.e4 c5 2.b3 d5 3.Bb2
B40 French Variation, Westerinen Attack
1.e4 c5 2.Nf3 e6 3.b3
B23 Grand Prix Attack
1.e4 c5 2.Nc3 Nc6 3.f4
B21 Halasz Gambit
1.e4 c5 2.d4 cxd4 3.f4
B27 Hyperaccelerated Dragon
1.e4 c5 2.Nf3 g6 3.d4
B50 Kopec System
1.e4 c5 2.Nf3 d6 3.Bd3
B40 Kramnik Variation
1.e4 c5 2.Nf3 e6 3.c4
B21 McDonnell Attack, Toilet Variation
1.e4 c5 2.f4 d5 3.Nc3
B21 Morphy Gambit
1.e4 c5 2.d4 cxd4 3.Nf3
B51 Moscow Variation
1.e4 c5 2.Nf3 d6 3.Bb5+
B29 Nimzowitsch Variation, Advance Variation
1.e4 c5 2.Nf3 Nf6 3.e5
B29 Nimzowitsch Variation, Closed Variation
1.e4 c5 2.Nf3 Nf6 3.Nc3
B30 Nyezhmetdinov-Rossolimo Attack
1.e4 c5 2.Nf3 Nc6 3.Bb5
B28 O'Kelly Variation, Aronin System
1.e4 c5 2.Nf3 a6 3.Be2
B28 O'Kelly Variation, Kieseritzky System
1.e4 c5 2.Nf3 a6 3.b3
B28 O'Kelly Variation, Maróczy Bind
1.e4 c5 2.Nf3 a6 3.c4
B28 O'Kelly Variation, Normal System
1.e4 c5 2.Nf3 a6 3.d4
B28 O'Kelly Variation, Quiet System
1.e4 c5 2.Nf3 a6 3.d3
B28 O'Kelly Variation, Réti System
1.e4 c5 2.Nf3 a6 3.g3
B28 O'Kelly Variation, Venice System
1.e4 c5 2.Nf3 a6 3.c3
B28 O'Kelly Variation, Wing Gambit
1.e4 c5 2.Nf3 a6 3.b4
B28 O'Kelly Variation, Yerevan System
1.e4 c5 2.Nf3 a6 3.Nc3
B32 Open
1.e4 c5 2.Nf3 Nc6 3.d4
B30 Portsmouth Gambit
1.e4 c5 2.Nf3 Nc6 3.b4
B21 Smith-Morra Gambit
1.e4 c5 2.d4 cxd4 3.c3
B40 Wing Gambit Deferred
1.e4 c5 2.Nf3 e6 3.b4
B20 Wing Gambit, Abrahams Variation
1.e4 c5 2.b4 cxb4 3.Bb2
B50 Wing Gambit, Deferred Variation
1.e4 c5 2.Nf3 d6 3.b4
B20 Wing Gambit, Marshall Variation
1.e4 c5 2.b4 cxb4 3.a3
B20 Wing Gambit, Santasiere Variation
1.e4 c5 2.b4 cxb4 3.c4
B50 Sicilian Defense
1.e4 c5 2.Nf3 d6 3.d4 cxd4
B27 Acton Extension
1.e4 c5 2.Nf3 g6 3.c4 Bh6
B22 Alapin Variation, Anti-Alapin Gambit
1.e4 c5 2.c3 d5 3.exd5 Nf6
B22 Alapin Variation, Barmen Defense
1.e4 c5 2.c3 d5 3.exd5 Qxd5
B24 Closed
1.e4 c5 2.Nc3 Nc6 3.g3 g6
B30 Closed, Anti-Sveshnikov Variation
1.e4 c5 2.Nf3 Nc6 3.Nc3 e5
B23 Closed, Korchnoi Defense
1.e4 c5 2.Nc3 e6 3.g3 d5
B27 Double-Dutch Gambit
1.e4 c5 2.Nf3 f5 3.exf5 Nh6
B40 Drazic Variation
1.e4 c5 2.Nf3 e6 3.d4 a6
B32 Franco-Sicilian Variation
1.e4 c5 2.Nf3 Nc6 3.d4 e6
B27 Frederico Variation
1.e4 c5 2.Nf3 g6 3.d4 f5
B40 French Variation, Open
1.e4 c5 2.Nf3 e6 3.d4 cxd4
B27 Hyperaccelerated Pterodactyl
1.e4 c5 2.Nf3 g6 3.d4 Bg7
B50 Kotov Gambit
1.e4 c5 2.Nf3 d6 3.g3 b5
B40 Marshall Counterattack
1.e4 c5 2.Nf3 e6 3.d4 d5
B21 McDonnell Attack
1.e4 c5 2.f4 Nc6 3.Nf3 e6
B21 McDonnell Attack, Tal Gambit
1.e4 c5 2.f4 d5 3.exd5 Nf6
B50 Modern Variations, Anti-Qxd4 Move Order
1.e4 c5 2.Nf3 d6 3.d4 Nf6
B52 Moscow Variation, Main Line
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7
B30 Nyezhmetdinov-Rossolimo Attack, Brooklyn Retreat Defense
1.e4 c5 2.Nf3 Nc6 3.Bb5 Nb8
B31 Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation
1.e4 c5 2.Nf3 Nc6 3.Bb5 g6
B28 O'Kelly Variation, Maróczy Bind, Paulsen Line
1.e4 c5 2.Nf3 a6 3.c4 e6
B28 O'Kelly Variation, Maróczy Bind, Robatsch Line
1.e4 c5 2.Nf3 a6 3.c4 d6
B28 O'Kelly Variation, Venice System, Barcza Line
1.e4 c5 2.Nf3 a6 3.c3 Nf6
B28 O'Kelly Variation, Venice System, Ljubojevic Line
1.e4 c5 2.Nf3 a6 3.c3 b5
B28 O'Kelly Variation, Venice System, Steiner Line
1.e4 c5 2.Nf3 a6 3.c3 d6
B32 Open
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4
B21 Smith-Morra Gambit Accepted
1.e4 c5 2.d4 cxd4 3.c3 dxc3
B21 Smith-Morra Gambit Declined, Alapin Formation
1.e4 c5 2.d4 cxd4 3.c3 Nf6
B21 Smith-Morra Gambit Declined, Center Formation
1.e4 c5 2.d4 cxd4 3.c3 e5
B21 Smith-Morra Gambit Declined, Push Variation
1.e4 c5 2.d4 cxd4 3.c3 d3
B21 Smith-Morra Gambit Declined, Scandinavian Formation
1.e4 c5 2.d4 cxd4 3.c3 d5
B21 Smith-Morra Gambit Declined, Wing Formation
1.e4 c5 2.d4 cxd4 3.c3 Qa5
B20 Wing Gambit, Carlsbad Variation
1.e4 c5 2.b4 cxb4 3.a3 bxa3
B20 Big Clamp Formation
1.e4 c5 2.d3 Nc6 3.c3 d6 4.f4
B53 Chekhover Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4
B23 Closed
1.e4 c5 2.Nc3 e6 3.Nge2 a6 4.g3
B23 Closed, Portland Attack
1.e4 c5 2.Nc3 Nc6 3.d3 g6 4.g4
B20 Kronberger Variation, Nemeth Gambit
1.e4 c5 2.Na3 Nc6 3.d4 cxd4 4.Bc4
B21 McDonnell Attack
1.e4 c5 2.f4 Nc6 3.Nf3 e6 4.d3
B50 Modern Variations, Tartakower
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.c3
B21 Morphy Gambit, Andreaschek Gambit
1.e4 c5 2.d4 cxd4 3.Nf3 e5 4.c3
B30 Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit
1.e4 c5 2.Nf3 Nc6 3.Bb5 Na5 4.b4
B28 O'Kelly Variation, Normal System, Cortlever Gambit
1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.Bc4
B28 O'Kelly Variation, Normal System, Smith-Morra Line
1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.c3
B28 O'Kelly Variation, Normal System, Zagorovsky Line
1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.Qxd4
B32 Open
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4
B21 Smith-Morra Gambit Accepted, Danish Variation
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nf3
B21 Smith-Morra Gambit Declined, Dubois Variation
1.e4 c5 2.d4 cxd4 3.c3 d3 4.c4
B40 Smith-Morra Gambit Deferred
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.c3
B32 Accelerated Dragon
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6
B22 Alapin Variation, Smith-Morra Declined
1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.d4 cxd4
B23 Closed
1.e4 c5 2.Nc3 e6 3.f4 Nc6 4.Nf3 d5
B24 Closed
1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7
B54 Dragon Variation, Accelerated Dragon
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 g6
B32 Flohr Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qc7
B40 French Variation, Normal
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6
B20 Gloria Variation
1.e4 c5 2.c4 d6 3.Nc3 Nc6 4.g3 h5
B32 Godiva Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qb6
B41 Kan Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6
B40 Kveinis Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Qb6
B32 Löwenthal Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5
B21 McDonnell Attack
1.e4 c5 2.f4 Nc6 3.Nf3 g6 4.Bb5 Bg7
B50 Modern Variations, Anti-Qxd4 Move Order Accepted
1.e4 c5 2.Nf3 d6 3.d4 Nf6 4.dxc5 Nxe4
B54 Modern Variations, Main Line
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6
B32 Nimzo-American Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 d5
B29 Nimzowitsch Variation, Exchange Variation
1.e4 c5 2.Nf3 Nf6 3.e5 Nd5 4.Nc3 Nxc3
B28 O'Kelly Variation, Normal System, Taimanov Line
1.e4 c5 2.Nf3 a6 3.d4 cxd4 4.Nxd4 e5
B28 O'Kelly Variation, Venice System, Gambit Line
1.e4 c5 2.Nf3 a6 3.c3 d5 4.exd5 Nf6
B33 Open
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6
B40 Paulsen-Basman Defense
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Bc5
B21 Smith-Morra Gambit Accepted, Fianchetto Defense
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 g6
B44 Taimanov Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6
B34 Accelerated Dragon, Exchange Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nxc6
B36 Accelerated Dragon, Maróczy Bind
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4
B34 Accelerated Dragon, Modern Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3
B22 Alapin Variation, Barmen Defense
1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 g6 5.Nf3
B22 Alapin Variation, Barmen Defense
1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nc6 5.Nf3
B23 Closed
1.e4 c5 2.Nc3 e6 3.f4 Nc6 4.Nf3 d5 5.Bb5
B23 Closed, Carlsen Variation
1.e4 c5 2.Nc3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Qd2
B21 Coles Sicilian Gambit
1.e4 c5 2.d4 cxd4 3.Qxd4 Nc6 4.Qd1 Nf6 5.Bc4
B22 Heidenfeld Variation
1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.Nf3 Nc6 5.Na3
B43 Kan Variation, Knight Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3
B41 Kan Variation, Maróczy Bind, Réti Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4
B42 Kan Variation, Modern Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3
B54 Modern Variations, Ginsberg Gambit
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Bc4
B52 Moscow Variation, Sokolsky Variation
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.c4
B54 Prins Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3
B45 Taimanov Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3
B44 Taimanov Variation, Szén Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5
B20 Wing Gambit, Marienbad Variation
1.e4 c5 2.b4 cxb4 3.a3 d5 4.exd5 Qxd5 5.Bb2
B37 Accelerated Dragon, Maróczy Bind
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7
B22 Alapin Variation, Barmen Defense, Modern Line
1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 Bg4
B40 Alapin Variation, Sherzer Variation
1.e4 c5 2.Nf3 e6 3.c3 Nf6 4.e5 Nd5 5.d4 Nc6
B53 Chekhover Variation, Zaitsev Defense
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 Nc6 5.Bb5 Qd7
B56 Classical Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6
B25 Closed
1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6
B30 Closed, Anti-Sveshnikov Variation, with d6
1.e4 c5 2.Nf3 Nc6 3.Nc3 e5 4.Bc4 Be7 5.d3 d6
B30 Closed, Anti-Sveshnikov Variation, with Nf6
1.e4 c5 2.Nf3 Nc6 3.Nc3 e5 4.Bc4 Be7 5.d3 Nf6
B22 Delayed Alapin Variation
1.e4 c5 2.Nf3 e6 3.c3 d5 4.exd5 Qxd5 5.d4 Nf6
B70 Dragon Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6
B45 Four Knights Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6
B40 Gaw-Paw Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Qb6
B32 Kalashnikov Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 e5 5.Nb5 d6
B41 Kan Variation, Maróczy Bind, Hedgehog Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4 g6
B42 Kan Variation, Polugaevsky Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Bc5
B42 Kan Variation, Swiss Cheese Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 g6
B43 Kan Variation, Wing Attack
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 b5
B56 Kupreichik Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bd7
B33 Lasker-Pelikan Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5
B21 McDonnell Attack
1.e4 c5 2.f4 Nc6 3.Nf3 g6 4.Bb5 Bg7 5.c3 Nf6
B90 Najdorf Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6
B32 O'Kelly Variation, Maróczy Bind, Geller Line
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 a6 5.c4 e5
B40 Pin Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4
B80 Scheveningen Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6
B21 Smith-Morra Gambit Accepted, Fianchetto Defense
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 g6
B21 Smith-Morra Gambit Accepted, Fianchetto Defense
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 d6 5.Nf3 g6
B21 Smith-Morra Gambit Accepted, Kan Formation
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 e6 5.Nf3 a6
B46 Taimanov Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 a6
B47 Taimanov Variation, Bastrikov Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7
B38 Accelerated Dragon, Maróczy Bind
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3
B22 Alapin Variation, Stoltz Attack
1.e4 c5 2.c3 Nf6 3.e5 Nd5 4.Nf3 Nc6 5.Bc4 Nb6 6.Bb3
B58 Classical Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2
B56 Classical Variation, Fianchetto Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.g3
B57 Classical Variation, Sozin Attack
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bc4
B25 Closed
1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4
B26 Closed
1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Be3
B72 Dragon Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3
B70 Dragon Variation, Classical Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be2
B70 Dragon Variation, Fianchetto Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.g3
B71 Dragon Variation, Levenfish Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f4
B45 Four Knights Variation, Exchange Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Nxc6
B23 Grand Prix Attack, Schofman Variation
1.e4 c5 2.Nc3 Nc6 3.f4 g6 4.Nf3 Bg7 5.Bc4 e6 6.f5
B40 Kan Variation, Wing Attack, Fianchetto Variation
1.e4 c5 2.Nf3 e6 3.Nc3 a6 4.g3 b5 5.d4 cxd4 6.Nxd4
B33 Lasker-Pelikan Variation, Exchange Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nxc6
B33 Lasker-Pelikan Variation, Retreat Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nf3
B33 Lasker-Pelikan Variation, Schlechter Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Nb3
B51 Moscow Variation, Dorfman Gambit
1.e4 c5 2.Nf3 d6 3.Bb5+ Nc6 4.O-O Bd7 5.Qe2 g6 6.e5
B94 Najdorf Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5
B90 Najdorf Variation, Adams Attack
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3
B93 Najdorf Variation, Amsterdam Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.f4
B90 Najdorf Variation, Dekker Gambit
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g4
B90 Najdorf Variation, English Attack
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3
B90 Najdorf Variation, Lipnitsky Attack
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4
B92 Najdorf Variation, Opocensky Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2
B90 Najdorf Variation, Petronić Attack
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Rg1
B90 Najdorf Variation, Yates Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bd3
B91 Najdorf Variation, Zagreb Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.g3
B31 Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Gufeld Gambit
1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 e5 6.d4
B31 Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Lutikov Gambit
1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 Nf6 6.d4
B31 Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation, Totsky Attack
1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.c3 Nf6 6.Qa4
B31 Nyezhmetdinov-Rossolimo Attack, Gurgenidze Variation
1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 e5 6.b4
B40 Pin Variation, Koch Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4 6.e5
B55 Prins Variation, Venice Attack
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.f3 e5 6.Bb5+
B60 Richter-Rauzer Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5
B83 Scheveningen Variation, Classical Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2
B80 Scheveningen Variation, Fianchetto Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g3
B81 Scheveningen Variation, Keres Attack
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.g4
B82 Scheveningen Variation, Matanovic Attack
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4
B80 Scheveningen Variation, Vitolins Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bb5+
B86 Sozin Attack
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4
B56 Spielmann Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Nde2
B48 Taimanov Variation, Bastrikov Variation, English Attack
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3
B56 Venice Attack
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 6.Bb5+
B22 Alapin Variation, Barmen Defense, Central Exchange
1.e4 c5 2.c3 d5 3.exd5 Qxd5 4.d4 cxd4 5.cxd4 Nc6 6.Nf3 Bg4
B58 Boleslavsky Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5
B57 Classical Variation, Anti-Sozin Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 Qb6
B30 Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik Line
1.e4 c5 2.Nf3 Nc6 3.Nc3 e5 4.Bc4 Be7 5.d3 d6 6.Nd2 Bg5
B25 Closed, Botvinnik Defense, with f4
1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4 e5
B25 Closed, Botvinnik Defense, with Nge2
1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.Nge2 e5
B50 Delayed Alapin Variation, Basman-Palatnik Gambit
1.e4 c5 2.Nf3 d6 3.c3 Nf6 4.Be2 Nc6 5.d4 cxd4 6.cxd4 Nxe4
B71 Dragon Variation, Levenfish Variation, Main Line
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f4 Nbd7
B45 Four Knights Variation, Cobra Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Ndb5 Bc5
B45 Four Knights Variation, Sveshnikov Transfer
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Ndb5 d6
B27 Hyperaccelerated Pterodactyl, Exchange Variation
1.e4 c5 2.Nf3 g6 3.d4 Bg7 4.dxc5 Qa5+ 5.Nc3 Bxc3+ 6.bxc3 Qxc3+
B95 Najdorf Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6
B90 Najdorf Variation, English Attack, Anti-English
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 Ng4
B29 Nimzowitsch Variation, Main Line
1.e4 c5 2.Nf3 Nf6 3.e5 Nd5 4.Nc3 e6 5.Nxd5 exd5 6.d4 Nc6
B40 Pin Variation, Jaffe Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Bb4 6.Bd3 e5
B62 Richter-Rauzer Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6
B60 Richter-Rauzer Variation, Dragon Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 g6
B60 Richter-Rauzer Variation, Modern Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 Bd7
B84 Scheveningen Variation, Classical Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6
B83 Scheveningen Variation, Modern Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 d6 6.Be2 Nf6
B21 Smith-Morra Gambit Accepted, Fianchetto Defense
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 g6
B21 Smith-Morra Gambit Accepted, Morphy Defense
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bc5
B21 Smith-Morra Gambit Accepted, Paulsen Formation
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 a6
B21 Smith-Morra Gambit Accepted, Pin Defense
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Bb4
B21 Smith-Morra Gambit Accepted, Scheveningen Formation
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 e6
B21 Smith-Morra Gambit Accepted, Siberian Variation
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 e6 6.Bc4 Qc7
B21 Smith-Morra Gambit Accepted, Taimanov Formation
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 e6 5.Bc4 a6 6.Nf3 Ne7
B88 Sozin Attack, Leonhardt Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6
B35 Accelerated Dragon, Modern Bc4 Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4
B59 Boleslavsky Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nb3
B58 Boleslavsky Variation, Louma Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 e5 7.Nxc6
B24 Closed, Smyslov Variation
1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 e6 6.Be3 Nd4 7.Nce2
B22 Delayed Alapin Variation
1.e4 c5 2.Nf3 e6 3.c3 d5 4.exd5 exd5 5.Bb5+ Nc6 6.O-O Bd6 7.d4
B72 Dragon Variation, Classical Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2
B75 Dragon Variation, Yugoslav Attack, Early Deviations
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3
B45 Four Knights Variation, American Attack
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Nf6 6.Ndb5 Bb4 7.Nd6+
B43 Kan Variation, Knight Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 b5 6.g3 Bb7 7.Bg2
B43 Kan Variation, Wing Attack, Spraggett Attack
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Nc3 b5 6.Bd3 Qb6 7.Nf3
B52 Moscow Variation, Haag Gambit
1.e4 c5 2.Nf3 d6 3.Bb5+ Bd7 4.Bxd7+ Qxd7 5.O-O Nc6 6.c3 Nf6 7.d4
B96 Najdorf Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4
B62 Richter-Rauzer Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd3
B62 Richter-Rauzer Variation, Exchange Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Nxc6
B61 Richter-Rauzer Variation, Modern Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 Bd7 7.Qd2
B62 Richter-Rauzer Variation, Podebrady Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bg5 e6 7.Nb3
B63 Richter-Rauzer Variation, Traditional Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2
B62 Richter-Rauzer Variation, Vitolins Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Bb5
B90 Scheveningen Variation, Delayed Keres Attack
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.g4
B90 Scheveningen Variation, English Attack, with f3
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.f3
B80 Scheveningen Variation, English Attack, with Qd2
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e6 7.Qd2
B89 Sozin Attack, Main Line
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Be3
B49 Taimanov Variation, Bastrikov Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Be3 a6 7.Be2
B20 Wing Gambit, Nanu Gambit
1.e4 c5 2.b4 cxb4 3.a3 d5 4.exd5 Qxd5 5.Nf3 e5 6.c4 Qe6 7.Bd3
B39 Accelerated Dragon, Maróczy Bind, Breyer Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Be3 Nf6 7.Nc3 Ng4
B36 Accelerated Dragon, Maróczy Bind, Gurgenidze Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Nf6 6.Nc3 Nxd4 7.Qxd4 d6
B37 Accelerated Dragon, Simagin Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 Bg7 6.Nc2 d6 7.Be2 Nh6
B58 Classical Variation, Dragon Transfer
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 Nxd4 7.Qxd4 g6
B25 Closed, Botvinnik Defense, Edge Variation
1.e4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 d6 6.f4 e5 7.Nh3 Nge7
B72 Dragon Variation, Classical Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6
B35 Dragon Variation, Modern Bc4 Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7 6.Be3 Nf6 7.Bc4 d6
B76 Dragon Variation, Yugoslav Attack
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 O-O
B75 Dragon Variation, Yugoslav Attack, Belezky Line
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.f3 Nc6
B75 Dragon Variation, Yugoslav Attack, Hungarian Dragon
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Nc6 7.f3 h5
B42 Kan Variation, Gipslis Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.Bd3 Nf6 6.O-O d6 7.c4 g6
B41 Kan Variation, Maróczy Bind, Bronstein Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4 Nf6 6.Nc3 Bb4 7.Bd3 Nc6
B21 McDonnell Attack
1.e4 c5 2.f4 Nc6 3.Nf3 g6 4.Bb5 Bg7 5.Bxc6 bxc6 6.O-O d6 7.d3 Nf6
B98 Najdorf Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Be7
B96 Najdorf Variation, Neo-Classical Defense
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Nc6
B97 Najdorf Variation, Poisoned Pawn Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 Qb6
B96 Najdorf Variation, Polugaevsky Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 b5
B84 Najdorf Variation, Scheveningen Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.O-O Nbd7
B63 Richter-Rauzer Variation, Classical Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Be7
B63 Richter-Rauzer Variation, Ivanov Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 Qb6
B66 Richter-Rauzer Variation, Neo-Modern Variation, Early Deviations
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 a6
B84 Scheveningen Variation, Classical Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 e6 7.O-O Qc7
B21 Smith-Morra Gambit Accepted, Chicago Defense
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 d6 5.Nf3 e6 6.Bc4 Nf6 7.O-O a6
B21 Smith-Morra Gambit Accepted, Classical Formation
1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 a6 7.O-O Nf6
B87 Sozin Attack, Flank Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bc4 e6 7.Bb3 b5
B20 Wing Gambit, Romanian Defense
1.e4 c5 2.b4 cxb4 3.a3 d5 4.exd5 Qxd5 5.Nf3 e5 6.Bb2 Nc6 7.c4 Qe6
B22 Alapin Variation, Barmen Defense, Milner-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
B72 Dragon Variation, Classical Variation
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.Be3 Bg7 7.Be2 Nc6 8.Nb3
B73 Dragon Variation, Classical 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
B72 Dragon Variation, Classical Variation, Amsterdam Variation
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Be2 g6 7.Be3 Bg7 8.Qd2
B41 Kan Variation, Maróczy Bind, Bronstein Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 5.c4 Nf6 6.Nc3 Bb4 7.Bd3 Nc6 8.Bc2
B43 Kan Variation, Wing Attack, Christiansen'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
B57 Magnus 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
B90 Najdorf Variation, English Attack
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.f3
B90 Najdorf Variation, English Attack
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be7 8.f3
B90 Najdorf Variation, English Attack
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be6 8.h3
B90 Najdorf Variation, English Attack
1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be3 e5 7.Nb3 Be7 8.h3
B92 Najdorf Variation, Opocensky Variation
1.e4 c5 2.Nf3 Nf6 3.Nc3 d6 4.d4 cxd4 5.Nxd4 a6 6.Be2 e5 7.Nb3 Be6 8.Be3
B82 Scheveningen Variation, Tal Variation
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.f4 Nc6 7.Be3 Be7 8.Qf3
B47 Taimanov Variation, Bastrikov Variation, Ponomariov Gambit
1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nc3 Qc7 6.Ndb5 Qb8 7.Be3 a6 8.Bb6
B89 Velimirovic Attack
1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Be3 Be7 8.Qe2
B22 Alapin Variation, Stoltz Attack, Ivanchuk 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
B76 Dragon Variation, Yugoslav 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
B33 Lasker-Pelikan Variation, Bird 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
B33 Lasker-Pelikan Variation, Sveshnikov 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
B92 Najdorf Variation, Opocensky Variation, Modern 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
B92 Najdorf Variation, Opocensky Variation, Traditional 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
B98 Najdorf Variation, Traditional 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
B67 Richter-Rauzer Variation, Neo-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
B85 Scheveningen Variation, Classical Variation, Paulsen 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 Nc6
B21 Smith-Morra Gambit Accepted, Finegold 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
B21 Smith-Morra Gambit Accepted, Larsen 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
B21 Smith-Morra Gambit Accepted, Morphy 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
B21 Smith-Morra Gambit Accepted, Siberian Variation, Siberian 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
B21 Smith-Morra Gambit Accepted, Sozin 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
B44 Taimanov Variation, Gary 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
B50 Delayed Alapin Variation, Basman-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
B73 Dragon Variation, Classical Variation, Battery 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
B72 Dragon Variation, Classical Variation, Grigoriev 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
B74 Dragon Variation, Classical Variation, Normal 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
B77 Dragon Variation, Yugoslav Attack, Main 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
B76 Dragon Variation, Yugoslav Attack, Modern 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
B76 Dragon Variation, Yugoslav Attack, Panov 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
B33 Lasker-Pelikan Variation, Sveshnikov Variation, Chelyabinsk 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
B51 Moscow Variation, Moscow 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
B64 Richter-Rauzer Variation, Classical 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
B85 Scheveningen Variation, Classical Variation, Paulsen 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.f4
B90 Scheveningen Variation, Delayed Keres Attack, Perenyi 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
B83 Scheveningen Variation, Modern 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
B88 Sozin Attack, Fischer 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
B22 Alapin Variation, Barmen Defense, Endgame 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
B74 Dragon Variation, Classical Variation, Alekhine 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
B77 Dragon Variation, Yugoslav Attack, Byrne 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
B77 Dragon Variation, Yugoslav Attack, Main 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
B77 Dragon Variation, Yugoslav Attack, Sosonko 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
B98 Najdorf Variation, Browne 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
B98 Najdorf Variation, Goteborg 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
B99 Najdorf Variation, 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 9.O-O-O Nbd7
B97 Najdorf Variation, Poisoned 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
B64 Richter-Rauzer Variation, Classical 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 e5
B68 Richter-Rauzer Variation, Neo-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
B65 Richter-Rauzer Variation, Rauzer 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
B21 Smith-Morra Gambit Accepted, Chicago 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 Ra7
B73 Dragon Variation, Classical Variation, Zollner 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
B78 Dragon Variation, Yugoslav 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-O
B77 Dragon Variation, Yugoslav Attack, Main 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
B96 Najdorf Variation, Polugaevsky Variation, Simagin 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
B65 Richter-Rauzer Variation, Classical 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
B85 Scheveningen Variation, Classical Variation, Paulsen 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
B83 Scheveningen Variation, Modern 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
B74 Dragon Variation, Classical Variation, Maróczy 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
B74 Dragon Variation, Classical Variation, Tartakower 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
B78 Dragon Variation, Yugoslav Attack, Chinese 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
B77 Dragon Variation, Yugoslav Attack, Czerniak 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
B78 Dragon Variation, Yugoslav Attack, Old 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
B33 Lasker-Pelikan Variation, Sveshnikov 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
B33 Lasker-Pelikan Variation, Sveshnikov Variation, Novosibirsk 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
B63 Richter-Rauzer Variation, Classical Variation, Kantscher 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
B85 Scheveningen Variation, Classical 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
B89 Sozin Attack, Main Line, Sherbakov 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
B44 Taimanov Variation, Modern 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
B33 Lasker-Pelikan Variation, Sveshnikov Variation, Peresypkin'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
B69 Richter-Rauzer Variation, Neo-Modern Variation, Nyezhmetdinov 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
B77 Dragon Variation, Yugoslav Attack, Czerniak 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
B74 Dragon Variation, Classical Variation, Spielmann 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
B79 Dragon Variation, Yugoslav 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
B78 Dragon Variation, Yugoslav Attack, Topalov 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
B94 Najdorf Variation, Ivkov 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
B79 Dragon Variation, Yugoslav Attack, Soltis 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
B74 Dragon Variation, Classical Variation, Bernard 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
B74 Dragon Variation, Classical Variation, Stockholm 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

Related openings

Ruy Lopez French Defense Italian Game King's Gambit Accepted Caro-Kann Defense Alekhine Defense King's Gambit Declined Scotch Game Petrov's Defense Four Knights Game