Encyclopedia

Chess Openings

Browse openings by ECO code. Study the moves, then play from the position.

B — Semi-Open Games

751 openings
B002 plies

Barnes Defense

1. e4 f6

B002 plies

Borg Defense

1. e4 g5

B004 plies

Borg Defense: Borg Gambit

1. e4 g5 2. d4 Bg7

B006 plies

Borg Defense: Troon Gambit

1. e4 g5 2. d4 h6 3. h4 g4

B004 plies

Borg Defense: Zilbermints Gambit

1. e4 g5 2. d4 e5

B002 plies

Carr Defense

1. e4 h6

B004 plies

Carr Defense: Zilbermints Gambit

1. e4 h6 2. d4 e5

B002 plies

Duras Gambit

1. e4 f5

B004 plies

Fried Fox Defense

1. e4 f6 2. d4 Kf7

B002 plies

Goldsmith Defense

1. e4 h5

B004 plies

Goldsmith Defense: Picklepuss Defense

1. e4 h5 2. d4 Nf6

B002 plies

Hippopotamus Defense

1. e4 Nh6

B006 plies

Hippopotamus Defense

1. e4 Nh6 2. d4 g6 3. c4 f6

B001 plies

King's Pawn Game

1. e4

B002 plies

Lemming Defense

1. e4 Na6

B005 plies

Lion Defense: Lion's Jaw

1. e4 d6 2. d4 Nf6 3. f3

B002 plies

Nimzowitsch Defense

1. e4 Nc6

B003 plies

Nimzowitsch Defense

1. e4 Nc6 2. d4

B006 plies

Nimzowitsch Defense: Breyer Variation

1. e4 Nc6 2. Nc3 Nf6 3. d4 e5

B004 plies

Nimzowitsch Defense: Colorado Countergambit

1. e4 Nc6 2. Nf3 f5

B005 plies

Nimzowitsch Defense: Colorado Countergambit Accepted

1. e4 Nc6 2. Nf3 f5 3. exf5

B003 plies

Nimzowitsch Defense: Declined Variation

1. e4 Nc6 2. Nf3

B006 plies

Nimzowitsch Defense: El Columpio Defense

1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4

B0011 plies

Nimzowitsch Defense: El Columpio Defense, El Columpio Gambit

1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. e6

B0011 plies

Nimzowitsch Defense: El Columpio Defense, Exchange Variation

1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. exd6

B0011 plies

Nimzowitsch Defense: El Columpio Defense, Pin Variation

1. e4 Nc6 2. Nf3 Nf6 3. e5 Ng4 4. d4 d6 5. h3 Nh6 6. Bb5

B004 plies

Nimzowitsch Defense: Franco-Nimzowitsch Variation

1. e4 Nc6 2. Nf3 e6

B004 plies

Nimzowitsch Defense: French Connection

1. e4 Nc6 2. Nc3 e6

B005 plies

Nimzowitsch Defense: Hornung Gambit

1. e4 Nc6 2. d4 d5 3. Be3

B004 plies

Nimzowitsch Defense: Kennedy Variation

1. e4 Nc6 2. d4 e5

B006 plies

Nimzowitsch Defense: Kennedy Variation, Bielefelder Gambit

1. e4 Nc6 2. d4 e5 3. dxe5 Bc5

B006 plies

Nimzowitsch Defense: Kennedy Variation, Hammer Gambit

1. e4 Nc6 2. d4 e5 3. dxe5 f6

B006 plies

Nimzowitsch Defense: Kennedy Variation, Herford Gambit

1. e4 Nc6 2. d4 e5 3. dxe5 Qh4

B007 plies

Nimzowitsch Defense: Kennedy Variation, Keres Attack

1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. Nc3

B005 plies

Nimzowitsch Defense: Kennedy Variation, Linksspringer Variation

1. e4 Nc6 2. d4 e5 3. d5

B008 plies

Nimzowitsch Defense: Kennedy Variation, Main Line

1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. f4 Ng6

B007 plies

Nimzowitsch Defense: Kennedy Variation, Paulsen Attack

1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. Nf3

B008 plies

Nimzowitsch Defense: Kennedy Variation, Riemann Defense

1. e4 Nc6 2. d4 e5 3. dxe5 Nxe5 4. f4 Nc6

B006 plies

Nimzowitsch Defense: Kennedy Variation, de Smet Gambit

1. e4 Nc6 2. d4 e5 3. dxe5 d6

B004 plies

Nimzowitsch Defense: Mikenas Variation

1. e4 Nc6 2. d4 d6

B004 plies

Nimzowitsch Defense: Neo-Mongoloid Defense

1. e4 Nc6 2. d4 f6

B004 plies

Nimzowitsch Defense: Pirc Connection

1. e4 Nc6 2. Nc3 g6

B003 plies

Nimzowitsch Defense: Pseudo-Spanish Variation

1. e4 Nc6 2. Bb5

B004 plies

Nimzowitsch Defense: Scandinavian Variation

1. e4 Nc6 2. d4 d5

B006 plies

Nimzowitsch Defense: Scandinavian Variation, Aachen Gambit

1. e4 Nc6 2. d4 d5 3. exd5 Nb4

B005 plies

Nimzowitsch Defense: Scandinavian Variation, Advance Variation

1. e4 Nc6 2. d4 d5 3. e5

B005 plies

Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation

1. e4 Nc6 2. d4 d5 3. Nc3

B006 plies

Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation

1. e4 Nc6 2. d4 d5 3. Nc3 dxe4

B006 plies

Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation, Brandics Gambit

1. e4 Nc6 2. d4 d5 3. Nc3 a6

B006 plies

Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation, Erben Gambit

1. e4 Nc6 2. d4 d5 3. Nc3 g6

B006 plies

Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation, Heinola-Deppe Gambit

1. e4 Nc6 2. d4 d5 3. Nc3 e5

B008 plies

Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation, Nimzowitsch Gambit

1. e4 Nc6 2. d4 d5 3. Nc3 dxe4 4. d5 Ne5

B009 plies

Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation, Richter Gambit

1. e4 Nc6 2. d4 d5 3. Nc3 dxe4 4. d5 Nb8 5. f3

B006 plies

Nimzowitsch Defense: Scandinavian Variation, Bogoljubow Variation, Vehre Variation

1. e4 Nc6 2. d4 d5 3. Nc3 Nf6

B006 plies

Nimzowitsch Defense: Scandinavian Variation, Exchange Variation

1. e4 Nc6 2. d4 d5 3. exd5 Qxd5

B007 plies

Nimzowitsch Defense: Scandinavian Variation, Exchange Variation, Marshall Gambit

1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 4. Nc3

B003 plies

Nimzowitsch Defense: Wheeler Gambit

1. e4 Nc6 2. b4

B004 plies

Nimzowitsch Defense: Williams Variation

1. e4 Nc6 2. Nf3 d6

B004 plies

Nimzowitsch Defense: Woodchuck Variation

1. e4 Nc6 2. d4 a6

B002 plies

Owen Defense

1. e4 b6

B004 plies

Owen Defense: Guatemala Defense

1. e4 b6 2. d4 Ba6

B006 plies

Owen Defense: Hekili-Loa Gambit

1. e4 b6 2. d4 c5 3. dxc5 Nc6

B0010 plies

Owen Defense: Matovinsky Gambit

1. e4 b6 2. d4 Bb7 3. Bd3 f5 4. exf5 Bxg2 5. Qh5+ g6

B005 plies

Owen Defense: Naselwaus Gambit

1. e4 b6 2. d4 Bb7 3. Bg5

B005 plies

Owen Defense: Smith Gambit

1. e4 b6 2. d4 Bb7 3. Nf3

B006 plies

Owen Defense: Unicorn Variation

1. e4 f6 2. d4 b6 3. c4 Bb7

B006 plies

Owen Defense: Wind Gambit

1. e4 b6 2. d4 Bb7 3. f3 e5

B002 plies

Pirc Defense

1. e4 d6

B003 plies

Pirc Defense

1. e4 d6 2. d4

B004 plies

Pirc Defense

1. e4 d6 2. d4 Nf6

B005 plies

Pirc Defense: Roscher Gambit

1. e4 d6 2. d4 Nf6 3. Nf3

B004 plies

Rat Defense: Antal Defense

1. e4 d6 2. d4 Nd7

B006 plies

Rat Defense: Fuller Gambit

1. e4 d6 2. f4 d5 3. exd5 Nf6

B003 plies

Rat Defense: Harmonist

1. e4 d6 2. f4

B003 plies

Rat Defense: Petruccioli Attack

1. e4 d6 2. h4

B003 plies

Rat Defense: Spike Attack

1. e4 d6 2. g4

B002 plies

St. George Defense

1. e4 a6

B008 plies

St. George Defense: Polish Variation

1. e4 a6 2. d4 b5 3. Nf3 Bb7 4. Bd3 e6

B0012 plies

St. George Defense: San Jorge Variation

1. e4 a6 2. d4 b5 3. Nf3 Bb7 4. Bd3 d6 5. O-O g6 6. c3 Bg7

B004 plies

St. George Defense: Zilbermints Gambit

1. e4 a6 2. d4 e5

B007 plies

Van Geet Opening: Berlin Gambit

1. e4 Nc6 2. d4 d5 3. Nc3 dxe4 4. d5

B002 plies

Ware Defense

1. e4 a5

B004 plies

Ware Defense: Snagglepuss Defense

1. e4 a5 2. d4 Nc6

B012 plies

Scandinavian Defense

1. e4 d5

B013 plies

Scandinavian Defense

1. e4 d5 2. b3

B018 plies

Scandinavian Defense: Anderssen Counterattack

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5

B0110 plies

Scandinavian Defense: Anderssen Counterattack, Collijn Variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3 Bg4

B019 plies

Scandinavian Defense: Anderssen Counterattack, Goteborg System

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3

B0113 plies

Scandinavian Defense: Anderssen Counterattack, Orthodox Attack

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. dxe5 Nc6 6. Nf3 Bb4 7. Bd2

B016 plies

Scandinavian Defense: Blackburne Gambit

1. e4 d5 2. exd5 c6 3. dxc6 Nxc6

B014 plies

Scandinavian Defense: Blackburne-Kloosterboer Gambit

1. e4 d5 2. exd5 c6

B016 plies

Scandinavian Defense: Boehnke Gambit

1. e4 d5 2. exd5 e5 3. dxe6 Bxe6

B0110 plies

Scandinavian Defense: Bronstein Variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Nf3 a6

B0110 plies

Scandinavian Defense: Classical Variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5

B0113 plies

Scandinavian Defense: Grünfeld Variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 6. Ne5 c6 7. g4

B016 plies

Scandinavian Defense: Gubinsky-Melts Defense

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6

B016 plies

Scandinavian Defense: Icelandic-Palme Gambit

1. e4 d5 2. exd5 Nf6 3. c4 e6

B018 plies

Scandinavian Defense: Kiel Variation

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb4

B016 plies

Scandinavian Defense: Kloosterboer Gambit

1. e4 d5 2. exd5 c6 3. dxc6 e5

B018 plies

Scandinavian Defense: Kádas Gambit

1. e4 d5 2. exd5 Nf6 3. d4 c6 4. dxc6 e5

B0111 plies

Scandinavian Defense: Lasker Variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bg4 6. h3

B016 plies

Scandinavian Defense: Main Line

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5

B017 plies

Scandinavian Defense: Main Line, Leonhardt Gambit

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. b4

B018 plies

Scandinavian Defense: Main Line, Mieses Variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6

B016 plies

Scandinavian Defense: Marshall Variation

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5

B014 plies

Scandinavian Defense: Mieses-Kotroc Variation

1. e4 d5 2. exd5 Qxd5

B014 plies

Scandinavian Defense: Modern Variation

1. e4 d5 2. exd5 Nf6

B015 plies

Scandinavian Defense: Modern Variation

1. e4 d5 2. exd5 Nf6 3. d4

B018 plies

Scandinavian Defense: Modern Variation, Gipslis Variation

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 Bg4

B018 plies

Scandinavian Defense: Modern Variation, Wing Gambit

1. e4 d5 2. exd5 Nf6 3. d4 g6 4. c4 b5

B016 plies

Scandinavian Defense: Panov Transfer

1. e4 d5 2. exd5 Nf6 3. c4 c6

B016 plies

Scandinavian Defense: Portuguese Gambit

1. e4 d5 2. exd5 Nf6 3. d4 Bg4

B019 plies

Scandinavian Defense: Portuguese Gambit, Banker Variation

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. c4

B017 plies

Scandinavian Defense: Portuguese Gambit, Classical Variation

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Nf3

B019 plies

Scandinavian Defense: Portuguese Gambit, Correspondence Refutation

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. g4

B018 plies

Scandinavian Defense: Portuguese Gambit, Elbow Variation

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Bb5+ c6

B0111 plies

Scandinavian Defense: Portuguese Gambit, Jadoul Variation

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. Bb5+ Nbd7 6. c4

B019 plies

Scandinavian Defense: Portuguese Gambit, Lusophobe Variation

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Bb5+ Nbd7 5. Be2

B0111 plies

Scandinavian Defense: Portuguese Gambit, Melbourne Shuffle Variation

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. f3 Bf5 5. Bb5+ Nbd7 6. Nc3

B017 plies

Scandinavian Defense: Portuguese Gambit, Wuss Variation

1. e4 d5 2. exd5 Nf6 3. d4 Bg4 4. Be2

B018 plies

Scandinavian Defense: Richter Variation

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. Nf3 g6

B016 plies

Scandinavian Defense: Richter Variation

1. e4 d5 2. exd5 Nf6 3. d4 g6

B018 plies

Scandinavian Defense: Schiller-Pytel Variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 c6

B0114 plies

Scandinavian Defense: Schiller-Pytel Variation, Modern Variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 4. d4 Nf6 5. Bc4 c6 6. Nge2 Bf5 7. Bf4 Qb4

B016 plies

Scandinavian Defense: Valencian Variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8

B0110 plies

Scandinavian Defense: Valencian Variation, Ilundain Variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Nf3 c6

B0110 plies

Scandinavian Defense: Valencian Variation, Main Line

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd8 4. d4 Nf6 5. Nf3 Bg4

B013 plies

Scandinavian Defense: Zilbermints Gambit

1. e4 d5 2. b4

B016 plies

Van Geet Opening: Grünfeld Defense

1. e4 d5 2. Nc3 dxe4 3. Nxe4 e5

B022 plies

Alekhine Defense

1. e4 Nf6

B024 plies

Alekhine Defense: Brooklyn Variation

1. e4 Nf6 2. e5 Ng8

B026 plies

Alekhine Defense: Brooklyn Variation, Everglades Variation

1. e4 Nf6 2. e5 Ng8 3. d4 f5

B025 plies

Alekhine Defense: Buckley Attack

1. e4 Nf6 2. e5 Nd5 3. Na3

B0211 plies

Alekhine Defense: Hunt Variation, Lasker Simul Gambit

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3

B0213 plies

Alekhine Defense: Hunt Variation, Matsukevich Gambit

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Nc3 Nxc3 6. dxc3 d6 7. Bg5

B0215 plies

Alekhine Defense: Hunt Variation, Mikenas Gambit

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6 7. Nxd5 exd5 8. Bxd5

B029 plies

Alekhine Defense: Kmoch Variation

1. e4 Nf6 2. e5 Nd5 3. Bc4 Nb6 4. Bb3 c5 5. d3

B023 plies

Alekhine Defense: Krejcik Variation

1. e4 Nf6 2. Bc4

B025 plies

Alekhine Defense: Krejcik Variation, Krejcik Gambit

1. e4 Nf6 2. Bc4 Nxe4 3. Bxf7+

B023 plies

Alekhine Defense: Maróczy Variation

1. e4 Nf6 2. d3

B024 plies

Alekhine Defense: Mokele Mbembe

1. e4 Nf6 2. e5 Ne4

B026 plies

Alekhine Defense: Mokele Mbembe, Modern Line

1. e4 Nf6 2. e5 Ne4 3. d4 f6

B026 plies

Alekhine Defense: Mokele Mbembe, Vavra Defense

1. e4 Nf6 2. e5 Ne4 3. d4 e6

B024 plies

Alekhine Defense: Normal Variation

1. e4 Nf6 2. e5 Nd5

B024 plies

Alekhine Defense: Scandinavian Variation

1. e4 Nf6 2. Nc3 d5

B026 plies

Alekhine Defense: Scandinavian Variation, Geschev Gambit

1. e4 Nf6 2. Nc3 d5 3. exd5 c6

B027 plies

Alekhine Defense: Scandinavian Variation, Myers Gambit

1. e4 Nf6 2. Nc3 d5 3. d3 dxe4 4. Bg5

B027 plies

Alekhine Defense: Spielmann Gambit

1. e4 Nf6 2. Nc3 d5 3. e5 Nfd7 4. e6

B027 plies

Alekhine Defense: Steiner Variation

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. b3

B025 plies

Alekhine Defense: Sämisch Attack

1. e4 Nf6 2. e5 Nd5 3. Nc3

B026 plies

Alekhine Defense: The Squirrel

1. e4 Nf6 2. e5 Nd5 3. c4 Nf4

B025 plies

Alekhine Defense: Two Pawns Attack

1. e4 Nf6 2. e5 Nd5 3. c4

B027 plies

Alekhine Defense: Two Pawns Attack, Lasker Variation

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5

B0212 plies

Alekhine Defense: Two Pawns Attack, Mikenas Variation

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5 5. Bc4 e6 6. Nc3 d6

B027 plies

Alekhine Defense: Two Pawns Attack, Tate Variation

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. a4

B025 plies

Alekhine Defense: Welling Variation

1. e4 Nf6 2. e5 Nd5 3. b3

B035 plies

Alekhine Defense

1. e4 Nf6 2. e5 Nd5 3. d4

B036 plies

Alekhine Defense

1. e4 Nf6 2. e5 Nd5 3. d4 d6

B037 plies

Alekhine Defense

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4

B037 plies

Alekhine Defense: Balogh Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Bc4

B039 plies

Alekhine Defense: Exchange Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6

B0321 plies

Alekhine Defense: Exchange Variation, Karpov Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. h3 Bg7 8. Nf3 O-O 9. Be2 Nc6 10. O-O Bf5 11. Bf4

B0317 plies

Alekhine Defense: Exchange Variation, Voronezh Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6 cxd6 6. Nc3 g6 7. Be3 Bg7 8. Rc1 O-O 9. b3

B039 plies

Alekhine Defense: Four Pawns Attack

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4

B0310 plies

Alekhine Defense: Four Pawns Attack, Cambridge Gambit

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g5

B0310 plies

Alekhine Defense: Four Pawns Attack, Fianchetto Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 g6

B0317 plies

Alekhine Defense: Four Pawns Attack, Ilyin-Zhenevsky Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Nf3 Bg4 8. e6 fxe6 9. c5

B0320 plies

Alekhine Defense: Four Pawns Attack, Korchnoi Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Bf5 7. Nc3 e6 8. Nf3 Be7 9. Be2 O-O 10. O-O f6

B0313 plies

Alekhine Defense: Four Pawns Attack, Main Line

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3

B0322 plies

Alekhine Defense: Four Pawns Attack, Tartakower Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 dxe5 6. fxe5 Nc6 7. Be3 Bf5 8. Nc3 e6 9. Nf3 Qd7 10. Be2 O-O-O 11. O-O Be7

B0310 plies

Alekhine Defense: Four Pawns Attack, Trifunovic Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4 Bf5

B039 plies

Alekhine Defense: Hunt Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. c5

B0311 plies

Alekhine Defense: Modern Variation, Alekhine Gambit

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. Nf3 Bg4 6. Be2

B036 plies

Alekhine Defense: O'Sullivan Gambit

1. e4 Nf6 2. e5 Nd5 3. d4 b5

B047 plies

Alekhine Defense: Modern Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3

B048 plies

Alekhine Defense: Modern Variation, Alburt Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6

B0413 plies

Alekhine Defense: Modern Variation, Keres Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 g6 5. Bc4 Nb6 6. Bb3 Bg7 7. a4

B048 plies

Alekhine Defense: Modern Variation, Larsen Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 dxe5

B048 plies

Alekhine Defense: Modern Variation, Larsen-Haakert Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nc6

B048 plies

Alekhine Defense: Modern Variation, Schmid Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Nb6

B059 plies

Alekhine Defense: Modern Variation, Alekhine Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4

B0510 plies

Alekhine Defense: Modern Variation, Flohr Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. Be2 c6

B058 plies

Alekhine Defense: Modern Variation, Main Line

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4

B059 plies

Alekhine Defense: Modern Variation, Panov Variation

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. h3

B0511 plies

Alekhine Defense: Modern Variation, Vitolins Attack

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3 Bg4 5. c4 Nb6 6. d5

B062 plies

Modern Defense

1. e4 g6

B064 plies

Modern Defense

1. e4 g6 2. d4 Bg7

B069 plies

Modern Defense: Anti-Modern

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Bc4 d6 5. Qe2

B065 plies

Modern Defense: Bishop Attack

1. e4 g6 2. d4 Bg7 3. Bc4

B066 plies

Modern Defense: Bishop Attack, Bücker Gambit

1. e4 g6 2. d4 Bg7 3. Bc4 b5

B068 plies

Modern Defense: Bishop Attack, Monkey's Bum

1. e4 g6 2. Bc4 Bg7 3. Qf3 e6 4. d4 Bxd4

B0610 plies

Modern Defense: Dunworthy Variation

1. e4 g6 2. d4 Bg7 3. c4 d5 4. exd5 c6 5. dxc6 Bxd4

B064 plies

Modern Defense: Fianchetto Gambit

1. e4 g6 2. d4 f5

B0610 plies

Modern Defense: Gurgenidze Defense

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. f4 d5 5. e5 h5

B066 plies

Modern Defense: Lizard Defense, Mittenberger Gambit

1. e4 g6 2. d4 Bg7 3. Nc3 d5

B0610 plies

Modern Defense: Masur Gambit

1. e4 g6 2. d4 Nh6 3. Nc3 f5 4. Bxh6 Bxh6 5. exf5 O-O

B066 plies

Modern Defense: Modern Pterodactyl

1. e4 g6 2. d4 Bg7 3. Nc3 c5

B066 plies

Modern Defense: Mongredien Defense, with Nc3

1. e4 g6 2. d4 Bg7 3. Nc3 b6

B066 plies

Modern Defense: Mongredien Defense, with Nf3

1. e4 g6 2. d4 Bg7 3. Nf3 b6

B064 plies

Modern Defense: Norwegian Defense

1. e4 g6 2. d4 Nf6

B068 plies

Modern Defense: Norwegian Defense, Norwegian Gambit

1. e4 g6 2. d4 Nf6 3. e5 Nh5 4. Be2 d6

B067 plies

Modern Defense: Pseudo-Austrian Attack

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4

B0610 plies

Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Declined

1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nf3 d6 5. Be2 Qa5+

B066 plies

Modern Defense: Standard Defense

1. e4 g6 2. d4 Bg7 3. Nc3 d6

B065 plies

Modern Defense: Standard Line

1. e4 g6 2. d4 Bg7 3. Nc3

B065 plies

Modern Defense: Three Pawns Attack

1. e4 g6 2. d4 Bg7 3. f4

B067 plies

Modern Defense: Two Knights Variation

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3

B068 plies

Modern Defense: Two Knights Variation, Suttles Variation

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. Nf3 d6

B0612 plies

Modern Defense: Two Knights Variation, Suttles Variation, Tal Gambit

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 c6 5. Bg5 Qb6 6. Qd2 Qxb2

B065 plies

Modern Defense: Westermann Gambit

1. e4 g6 2. d4 Bg7 3. Bd2

B065 plies

Modern Defense: Wind Gambit

1. e4 g6 2. d4 Bg7 3. Bd3

B068 plies

Pterodactyl Defense: Austrian, Austriadactylus Western

1. e4 g6 2. d4 Bg7 3. f4 c5 4. Nf3 Qa5+

B068 plies

Pterodactyl Defense: Austrian, Grand Prix Pterodactyl

1. e4 g6 2. Nc3 Bg7 3. f4 c5 4. Nf3 Qa5

B068 plies

Pterodactyl Defense: Austrian, Pteranodon

1. e4 g6 2. d4 Bg7 3. f4 c5 4. c3 Qa5

B0610 plies

Pterodactyl Defense: Central, Anhanguera

1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. Be3 Qa5

B0610 plies

Pterodactyl Defense: Central, Benoni Quetzalcoatlus

1. e4 g6 2. d4 Bg7 3. c4 c5 4. d5 d6 5. Nc3 Qa5

B0610 plies

Pterodactyl Defense: Central, Quetzalcoatlus Gambit

1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. dxc5 Qa5

B067 plies

Pterodactyl Defense: Eastern, Anhanguera

1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Be3

B067 plies

Pterodactyl Defense: Eastern, Benoni

1. d4 g6 2. e4 Bg7 3. Nc3 c5 4. d5

B0610 plies

Pterodactyl Defense: Eastern, Benoni Pteranodon

1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. d5 Bxc3+ 5. bxc3 Qa5

B068 plies

Pterodactyl Defense: Eastern, Benoni Pterodactyl

1. d4 g6 2. Nc3 Bg7 3. e4 c5 4. d5 Qa5

B0610 plies

Pterodactyl Defense: Eastern, Pteranodon

1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Bxc3+ 5. bxc3 Qa5

B068 plies

Pterodactyl Defense: Eastern, Pterodactyl

1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Qa5

B067 plies

Pterodactyl Defense: Eastern, Rhamphorhynchus

1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5

B068 plies

Pterodactyl Defense: Fianchetto, King Pterodactyl

1. e4 g6 2. d4 Bg7 3. g3 c5 4. Nf3 Qa5+

B068 plies

Pterodactyl Defense: Fianchetto, Rhamphorhynchus

1. e4 g6 2. d4 Bg7 3. g3 c5 4. dxc5 Qa5+

B0610 plies

Pterodactyl Defense: Sicilian, Quetzalcoatlus

1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 Qa5 5. Be2 d6

B069 plies

Pterodactyl Defense: Sicilian, Siroccopteryx

1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 Qa5 5. Bc4

B068 plies

Pterodactyl Defense: Western, Anhanguera

1. e4 g6 2. d4 Bg7 3. Nf3 c5 4. Be3 Qa5+

B0610 plies

Pterodactyl Defense: Western, Siroccopteryx

1. e4 g6 2. Nf3 Bg7 3. d4 c5 4. Bc4 cxd4 5. Nxd4 Qa5+

B066 plies

Rat Defense: Accelerated Gurgenidze

1. e4 g6 2. d4 d6 3. Nc3 c6

B076 plies

Czech Defense

1. e4 d6 2. d4 Nf6 3. Nc3 c6

B074 plies

King's Pawn Game: Maróczy Defense

1. e4 d6 2. d4 e5

B077 plies

Lion Defense: Anti-Philidor

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4

B078 plies

Lion Defense: Anti-Philidor, Lion's Cave

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5

B0714 plies

Lion Defense: Anti-Philidor, Lion's Cave, Lion Claw Gambit

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. f4 e5 5. Nf3 exd4 6. Qxd4 c6 7. Bc4 d5

B077 plies

Lion Defense: Bayonet Attack

1. e4 d6 2. d4 Nf6 3. Nc3 Nbd7 4. g4

B077 plies

Modern Defense: Geller's System

1. e4 g6 2. d4 Bg7 3. Nf3 d6 4. c3

B076 plies

Pirc Defense

1. e4 d6 2. d4 Nf6 3. Nc3 g6

B079 plies

Pirc Defense: 150 Attack

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. Qd2

B0710 plies

Pirc Defense: 150 Attack, Inner Doll Defense

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. Qd2 Bg4

B079 plies

Pirc Defense: 150 Attack, Sveshnikov-Jansa Attack

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be3 c6 5. h3

B079 plies

Pirc Defense: Bayonet Attack

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. h4

B077 plies

Pirc Defense: Byrne Variation

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5

B079 plies

Pirc Defense: Chinese Variation

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Be2 Bg7 5. g4

B077 plies

Pirc Defense: Kholmov System

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bc4

B077 plies

Pirc Defense: Sveshnikov System

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. g3

B087 plies

Pirc Defense: Classical Variation

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3

B088 plies

Pirc Defense: Classical Variation

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7

B089 plies

Pirc Defense: Classical Variation, Quiet System

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2

B0812 plies

Pirc Defense: Classical Variation, Quiet System, Chigorin Line

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O Nc6

B0812 plies

Pirc Defense: Classical Variation, Quiet System, Czech Defense

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O c6

B0812 plies

Pirc Defense: Classical Variation, Quiet System, Parma Defense

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. Be2 O-O 6. O-O Bg4

B089 plies

Pirc Defense: Classical Variation, Schlechter Variation

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7 5. h3

B097 plies

Pirc Defense: Austrian Attack

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4

B0910 plies

Pirc Defense: Austrian Attack

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O

B0910 plies

Pirc Defense: Austrian Attack, Dragon Formation

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 c5

B0911 plies

Pirc Defense: Austrian Attack, Kurajica Variation

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Be3

B099 plies

Pirc Defense: Austrian Attack, Ljubojevic Variation

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Bc4

B0911 plies

Pirc Defense: Austrian Attack, Unzicker Attack

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5

B0913 plies

Pirc Defense: Austrian Attack, Unzicker Attack, Bronstein Variation

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. e5 Nfd7 7. h4

B0911 plies

Pirc Defense: Austrian Attack, Weiss Variation

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4 Bg7 5. Nf3 O-O 6. Bd3

B102 plies

Caro-Kann Defense

1. e4 c6

B103 plies

Caro-Kann Defense

1. e4 c6 2. Nc3

B104 plies

Caro-Kann Defense

1. e4 c6 2. Nc3 d5

B103 plies

Caro-Kann Defense: Accelerated Panov Attack

1. e4 c6 2. c4

B104 plies

Caro-Kann Defense: Accelerated Panov Attack

1. e4 c6 2. c4 d5

B108 plies

Caro-Kann Defense: Accelerated Panov Attack, Modern Variation

1. e4 c6 2. c4 d5 3. exd5 cxd5 4. cxd5 Nf6

B104 plies

Caro-Kann Defense: Accelerated Panov Attack, Open Variation

1. e4 c6 2. c4 e5

B106 plies

Caro-Kann Defense: Accelerated Panov Attack, Pseudo-Scandinavian

1. e4 c6 2. c4 d5 3. exd5 Qxd5

B107 plies

Caro-Kann Defense: Accelerated Panov Attack, Van Weersel Attack

1. e4 c6 2. c4 d5 3. cxd5 cxd5 4. Qb3

B107 plies

Caro-Kann Defense: Apocalypse Attack

1. e4 c6 2. Nf3 d5 3. exd5 cxd5 4. Ne5

B103 plies

Caro-Kann Defense: Breyer Variation

1. e4 c6 2. d3

B1015 plies

Caro-Kann Defense: Breyer Variation, Stein Attack

1. e4 c6 2. d3 d5 3. Nd2 g6 4. Ngf3 Bg7 5. g3 e5 6. Bg2 Ne7 7. O-O O-O 8. b4

B105 plies

Caro-Kann Defense: Endgame Offer

1. e4 c6 2. Nf3 d5 3. d3

B109 plies

Caro-Kann Defense: Endgame Variation

1. e4 c6 2. Nf3 d5 3. d3 dxe4 4. dxe4 Qxd1+ 5. Kxd1

B103 plies

Caro-Kann Defense: Euwe Attack

1. e4 c6 2. b3

B105 plies

Caro-Kann Defense: Goldman Variation

1. e4 c6 2. Nc3 d5 3. Qf3

B107 plies

Caro-Kann Defense: Hector Gambit

1. e4 c6 2. Nc3 d5 3. Nf3 dxe4 4. Ng5

B103 plies

Caro-Kann Defense: Hillbilly Attack

1. e4 c6 2. Bc4

B107 plies

Caro-Kann Defense: Hillbilly Attack, Schaeffer Gambit

1. e4 c6 2. Bc4 d5 3. Bb3 dxe4 4. Qh5

B103 plies

Caro-Kann Defense: Labahn Attack

1. e4 c6 2. b4

B105 plies

Caro-Kann Defense: Labahn Attack, Double Gambit

1. e4 c6 2. b4 d5 3. b5

B105 plies

Caro-Kann Defense: Labahn Attack, Polish Variation

1. e4 c6 2. b4 e5 3. Bb2

B107 plies

Caro-Kann Defense: Scorpion-Horus Gambit

1. e4 c6 2. Nc3 d5 3. d3 dxe4 4. Bg5

B103 plies

Caro-Kann Defense: Spike Variation

1. e4 c6 2. g4

B107 plies

Caro-Kann Defense: Spike Variation, Scorpion-Grob Gambit

1. e4 c6 2. g4 d5 3. Nc3 dxe4 4. d3

B105 plies

Caro-Kann Defense: St. Patrick's Attack

1. e4 c6 2. Nc3 d5 3. h3

B105 plies

Caro-Kann Defense: Toikkanen Gambit

1. e4 c6 2. c4 d5 3. e5

B105 plies

Caro-Kann Defense: Two Knights Attack

1. e4 c6 2. Nc3 d5 3. Nf3

B116 plies

Caro-Kann Defense: Two Knights Attack, Mindeno Variation

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4

B118 plies

Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Exchange Line

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bxf3

B118 plies

Caro-Kann Defense: Two Knights Attack, Mindeno Variation, Retreat Line

1. e4 c6 2. Nc3 d5 3. Nf3 Bg4 4. h3 Bh5

B123 plies

Caro-Kann Defense

1. e4 c6 2. d4

B124 plies

Caro-Kann Defense

1. e4 c6 2. d4 d5

B125 plies

Caro-Kann Defense: Advance Variation

1. e4 c6 2. d4 d5 3. e5

B127 plies

Caro-Kann Defense: Advance Variation, Bayonet Attack

1. e4 c6 2. d4 d5 3. e5 Bf5 4. g4

B126 plies

Caro-Kann Defense: Advance Variation, Botvinnik-Carls Defense

1. e4 c6 2. d4 d5 3. e5 c5

B127 plies

Caro-Kann Defense: Advance Variation, Bronstein Variation

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Ne2

B127 plies

Caro-Kann Defense: Advance Variation, Prins Attack

1. e4 c6 2. d4 d5 3. e5 Bf5 4. b4

B127 plies

Caro-Kann Defense: Advance Variation, Short Variation

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nf3

B127 plies

Caro-Kann Defense: Advance Variation, Tal Variation

1. e4 c6 2. d4 d5 3. e5 Bf5 4. h4

B127 plies

Caro-Kann Defense: Advance Variation, Van der Wiel Attack

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3

B1213 plies

Caro-Kann Defense: Advance Variation, Van der Wiel Attack

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 e6 5. g4 Bg6 6. Nge2 c5 7. h4

B128 plies

Caro-Kann Defense: Advance Variation, Van der Wiel Attack, Dreyev Defense

1. e4 c6 2. d4 d5 3. e5 Bf5 4. Nc3 Qb6

B129 plies

Caro-Kann Defense: Advance, Short Variation

1. e4 c6 2. d4 d5 3. e5 Bf5 4. c3 e6 5. Be2

B124 plies

Caro-Kann Defense: De Bruycker Defense

1. e4 c6 2. d4 Na6

B126 plies

Caro-Kann Defense: De Bruycker Defense

1. e4 c6 2. d4 Na6 3. Nc3 Nc7

B126 plies

Caro-Kann Defense: Edinburgh Variation

1. e4 c6 2. d4 d5 3. Nd2 Qb6

B125 plies

Caro-Kann Defense: Maróczy Variation

1. e4 c6 2. d4 d5 3. f3

B1211 plies

Caro-Kann Defense: Maróczy Variation, Maróczy Gambit

1. e4 c6 2. d4 d5 3. f3 dxe4 4. fxe4 e5 5. Nf3 exd4 6. Bc4

B124 plies

Caro-Kann Defense: Masi Variation

1. e4 c6 2. d4 Nf6

B124 plies

Caro-Kann Defense: Massachusetts Defense

1. e4 c6 2. d4 f5

B129 plies

Caro-Kann Defense: Mieses Attack, Landau Gambit

1. e4 c6 2. d4 d5 3. Bd3 Nf6 4. e5 Nfd7 5. e6

B125 plies

Caro-Kann Defense: Mieses Gambit

1. e4 c6 2. d4 d5 3. Be3

B125 plies

Caro-Kann Defense: Modern Variation

1. e4 c6 2. d4 d5 3. Nd2

B127 plies

Caro-Kann Defense: Ulysses Gambit

1. e4 c6 2. d4 d5 3. Nf3 dxe4 4. Ng5

B135 plies

Caro-Kann Defense: Exchange Variation

1. e4 c6 2. d4 d5 3. exd5

B138 plies

Caro-Kann Defense: Exchange Variation

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Nf3 Nc6

B137 plies

Caro-Kann Defense: Exchange Variation, Bulla Attack

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. g4

B1311 plies

Caro-Kann Defense: Exchange Variation, Rubinstein Variation

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Nf6 6. Bf4

B137 plies

Caro-Kann Defense: Panov Attack

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4

B139 plies

Caro-Kann Defense: Panov Attack

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3

B139 plies

Caro-Kann Defense: Panov Attack, Gunderam Attack

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. c5

B1310 plies

Caro-Kann Defense: Panov Attack, Modern Defense

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6

B1312 plies

Caro-Kann Defense: Panov Attack, Modern Defense, Carlsbad Line

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 e6

B1312 plies

Caro-Kann Defense: Panov Attack, Modern Defense, Czerniak Line

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 Qa5

B1312 plies

Caro-Kann Defense: Panov Attack, Modern Defense, Mieses Line

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Nf3 Bg4

B1312 plies

Caro-Kann Defense: Panov Attack, Modern Defense, Reifir-Spielmann Line

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 Qb6

B1314 plies

Caro-Kann Defense: Panov-Botvinnik, Herzog Defense

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 Nc6 6. Bg5 dxc4 7. d5 Na5

B1410 plies

Caro-Kann Defense: Panov Attack

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6

B1410 plies

Caro-Kann Defense: Panov Attack, Fianchetto Defense

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6

B1412 plies

Caro-Kann Defense: Panov Attack, Fianchetto Defense, Fianchetto Gambit

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 g6 6. cxd5 Bg7

B1412 plies

Caro-Kann Defense: Panov Attack, Main Line

1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4 Nf6 5. Nc3 e6 6. Nf3 Bb4

B155 plies

Caro-Kann Defense

1. e4 c6 2. d4 d5 3. Nc3

B156 plies

Caro-Kann Defense

1. e4 c6 2. d4 d5 3. Nc3 dxe4

B159 plies

Caro-Kann Defense: Alekhine Gambit

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Bd3

B1511 plies

Caro-Kann Defense: Alien Gambit

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Ng5 h6 6. Nxf7

B156 plies

Caro-Kann Defense: Campomanes Attack

1. e4 c6 2. d4 d5 3. Nc3 Nf6

B1511 plies

Caro-Kann Defense: Forgacs Variation

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. Bc4

B156 plies

Caro-Kann Defense: Gurgenidze Counterattack

1. e4 c6 2. d4 d5 3. Nc3 b5

B156 plies

Caro-Kann Defense: Gurgenidze System

1. e4 c6 2. d4 d5 3. Nc3 g6

B157 plies

Caro-Kann Defense: Main Line

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4

B157 plies

Caro-Kann Defense: Rasa-Studier Gambit

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. f3

B1510 plies

Caro-Kann Defense: Tartakower Variation

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6

B1516 plies

Caro-Kann Defense: Tartakower Variation, Perlis Line

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ exf6 6. c3 Bd6 7. Bd3 O-O 8. Qc2 h6

B157 plies

Caro-Kann Defense: von Hennig Gambit

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Bc4

B1610 plies

Caro-Kann Defense: Bronstein-Larsen Variation

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6

B168 plies

Caro-Kann Defense: Finnish Variation

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 h6

B178 plies

Caro-Kann Defense: Karpov Variation

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7

B1719 plies

Caro-Kann Defense: Karpov Variation, Modern Main Line

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Ng5 Ngf6 6. Bd3 e6 7. N1f3 Bd6 8. Qe2 h6 9. Ne4 Nxe4 10. Qxe4

B179 plies

Caro-Kann Defense: Karpov Variation, Modern Variation

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Ng5

B1710 plies

Caro-Kann Defense: Karpov Variation, Modern Variation, Ivanchuk Defense

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Ng5 Ndf6

B1711 plies

Caro-Kann Defense: Karpov Variation, Modern Variation, Kasparov Attack

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nd7 5. Nf3 Ngf6 6. Ng3

B1714 plies

Caro-Kann Defense: Karpov Variation, Smyslov Variation

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6

B1715 plies

Caro-Kann Defense: Karpov Variation, Smyslov Variation, Main Line

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Ng5 e6 7. Qe2 Nb6 8. Bb3

B1712 plies

Caro-Kann Defense: Karpov Variation, Tiviakov-Fischer Attack

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Nd7 5. Bc4 Ngf6 6. Nxf6+ Nxf6

B188 plies

Caro-Kann Defense: Classical Variation

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5

B1811 plies

Caro-Kann Defense: Classical Variation, Flohr Variation

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. Nh3

B1811 plies

Caro-Kann Defense: Classical Variation, Main Line

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4

B1811 plies

Caro-Kann Defense: Classical Variation, Maróczy Attack

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. f4

B1813 plies

Caro-Kann Defense: Martian Gambit

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng5 Bg6 6. N1f3 h6 7. Ne6

B1914 plies

Caro-Kann Defense: Classical Variation

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7

B1924 plies

Caro-Kann Defense: Classical Variation, Lobron System

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 e6 11. Bd2 Ngf6 12. O-O-O Be7

B1924 plies

Caro-Kann Defense: Classical Variation, Seirawan Variation

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5 Bh7 9. Bd3 Bxd3 10. Qxd3 Ngf6 11. Bd2 e6 12. O-O-O Bd6

B1915 plies

Caro-Kann Defense: Classical Variation, Spassky Variation

1. e4 c6 2. d4 d5 3. Nd2 dxe4 4. Nxe4 Bf5 5. Ng3 Bg6 6. h4 h6 7. Nf3 Nd7 8. h5

B202 plies

Sicilian Defense

1. e4 c5

B203 plies

Sicilian Defense: Amazon Attack

1. e4 c5 2. Qg4

B207 plies

Sicilian Defense: Big Clamp Formation

1. e4 c5 2. d3 Nc6 3. c3 d6 4. f4

B203 plies

Sicilian Defense: Bowdler Attack

1. e4 c5 2. Bc4

B203 plies

Sicilian Defense: Brick Variation

1. e4 c5 2. Nh3

B205 plies

Sicilian Defense: Euwe Attack, Prins Gambit

1. e4 c5 2. b3 d5 3. Bb2

B208 plies

Sicilian Defense: Gloria Variation

1. e4 c5 2. c4 d6 3. Nc3 Nc6 4. g3 h5

B203 plies

Sicilian Defense: Grob Variation

1. e4 c5 2. g4

B203 plies

Sicilian Defense: Keres Variation

1. e4 c5 2. Ne2

B203 plies

Sicilian Defense: King David's Opening

1. e4 c5 2. Ke2

B203 plies

Sicilian Defense: Kronberger Variation

1. e4 c5 2. Na3

B207 plies

Sicilian Defense: Kronberger Variation, Nemeth Gambit

1. e4 c5 2. Na3 Nc6 3. d4 cxd4 4. Bc4

B203 plies

Sicilian Defense: Lasker-Dunne Attack

1. e4 c5 2. g3

B203 plies

Sicilian Defense: Mengarini Variation

1. e4 c5 2. a3

B203 plies

Sicilian Defense: Myers Attack, with a4

1. e4 c5 2. a4

B203 plies

Sicilian Defense: Myers Attack, with h4

1. e4 c5 2. h4

B203 plies

Sicilian Defense: Snyder Variation

1. e4 c5 2. b3

B204 plies

Sicilian Defense: Snyder Variation, Queen Fianchetto Variation

1. e4 c5 2. b3 b6

B203 plies

Sicilian Defense: Staunton-Cochrane Variation

1. e4 c5 2. c4

B203 plies

Sicilian Defense: Wing Gambit

1. e4 c5 2. b4

B205 plies

Sicilian Defense: Wing Gambit, Abrahams Variation

1. e4 c5 2. b4 cxb4 3. Bb2

B206 plies

Sicilian Defense: Wing Gambit, Carlsbad Variation

1. e4 c5 2. b4 cxb4 3. a3 bxa3

B209 plies

Sicilian Defense: Wing Gambit, Marienbad Variation

1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Bb2

B205 plies

Sicilian Defense: Wing Gambit, Marshall Variation

1. e4 c5 2. b4 cxb4 3. a3

B2013 plies

Sicilian Defense: Wing Gambit, Nanu Gambit

1. e4 c5 2. b4 cxb4 3. a3 d5 4. exd5 Qxd5 5. Nf3 e5 6. c4 Qe6 7. Bd3

B2014 plies

Sicilian Defense: 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

B205 plies

Sicilian Defense: Wing Gambit, Santasiere Variation

1. e4 c5 2. b4 cxb4 3. c4

B216 plies

Bird Opening: Dutch Variation, Batavo Gambit

1. e4 c5 2. f4 d5 3. Nf3 dxe4

B219 plies

Sicilian Defense: Coles Sicilian Gambit

1. e4 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qd1 Nf6 5. Bc4

B215 plies

Sicilian Defense: Halasz Gambit

1. e4 c5 2. d4 cxd4 3. f4

B213 plies

Sicilian Defense: McDonnell Attack

1. e4 c5 2. f4

B216 plies

Sicilian Defense: McDonnell Attack, Tal Gambit

1. e4 c5 2. f4 d5 3. exd5 Nf6

B215 plies

Sicilian Defense: McDonnell Attack, Toilet Variation

1. e4 c5 2. f4 d5 3. Nc3

B215 plies

Sicilian Defense: Morphy Gambit

1. e4 c5 2. d4 cxd4 3. Nf3

B217 plies

Sicilian Defense: Morphy Gambit, Andreaschek Gambit

1. e4 c5 2. d4 cxd4 3. Nf3 e5 4. c3

B213 plies

Sicilian Defense: Smith-Morra Gambit

1. e4 c5 2. d4

B215 plies

Sicilian Defense: Smith-Morra Gambit

1. e4 c5 2. d4 cxd4 3. c3

B216 plies

Sicilian Defense: Smith-Morra Gambit Accepted

1. e4 c5 2. d4 cxd4 3. c3 dxc3

B2118 plies

Sicilian Defense: 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

B2114 plies

Sicilian Defense: 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

B2114 plies

Sicilian Defense: 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

B217 plies

Sicilian Defense: Smith-Morra Gambit Accepted, Danish Variation

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nf3

B2110 plies

Sicilian Defense: Smith-Morra Gambit Accepted, Fianchetto Defense

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 g6

B2116 plies

Sicilian Defense: 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

B2110 plies

Sicilian Defense: Smith-Morra Gambit Accepted, Kan Formation

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Nf3 a6

B2116 plies

Sicilian Defense: 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

B2112 plies

Sicilian Defense: Smith-Morra Gambit Accepted, Morphy Defense

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Bc5

B2116 plies

Sicilian Defense: 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

B2112 plies

Sicilian Defense: Smith-Morra Gambit Accepted, Paulsen Formation

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 a6

B2112 plies

Sicilian Defense: Smith-Morra Gambit Accepted, Pin Defense

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Bb4

B2112 plies

Sicilian Defense: Smith-Morra Gambit Accepted, Scheveningen Formation

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 d6 6. Bc4 e6

B2112 plies

Sicilian Defense: Smith-Morra Gambit Accepted, Siberian Variation

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 Nc6 5. Nf3 e6 6. Bc4 Qc7

B2116 plies

Sicilian Defense: 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

B2116 plies

Sicilian Defense: 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

B2112 plies

Sicilian Defense: Smith-Morra Gambit Accepted, Taimanov Formation

1. e4 c5 2. d4 cxd4 3. c3 dxc3 4. Nxc3 e6 5. Bc4 a6 6. Nf3 Ne7

B216 plies

Sicilian Defense: Smith-Morra Gambit Declined, Alapin Formation

1. e4 c5 2. d4 cxd4 3. c3 Nf6

B216 plies

Sicilian Defense: Smith-Morra Gambit Declined, Center Formation

1. e4 c5 2. d4 cxd4 3. c3 e5

B217 plies

Sicilian Defense: Smith-Morra Gambit Declined, Dubois Variation

1. e4 c5 2. d4 cxd4 3. c3 d3 4. c4

B216 plies

Sicilian Defense: Smith-Morra Gambit Declined, Push Variation

1. e4 c5 2. d4 cxd4 3. c3 d3

B216 plies

Sicilian Defense: Smith-Morra Gambit Declined, Scandinavian Formation

1. e4 c5 2. d4 cxd4 3. c3 d5

B216 plies

Sicilian Defense: Smith-Morra Gambit Declined, Wing Formation

1. e4 c5 2. d4 cxd4 3. c3 Qa5

B223 plies

Sicilian Defense: Alapin Variation

1. e4 c5 2. c3

B226 plies

Sicilian Defense: Alapin Variation, Anti-Alapin Gambit

1. e4 c5 2. c3 d5 3. exd5 Nf6

B226 plies

Sicilian Defense: Alapin Variation, Barmen Defense

1. e4 c5 2. c3 d5 3. exd5 Qxd5

B2212 plies

Sicilian Defense: Alapin Variation, Barmen Defense, Central Exchange

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 cxd4 5. cxd4 Nc6 6. Nf3 Bg4

B2218 plies

Sicilian Defense: 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

B2215 plies

Sicilian Defense: 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

B2210 plies

Sicilian Defense: Alapin Variation, Barmen Defense, Modern Line

1. e4 c5 2. c3 d5 3. exd5 Qxd5 4. d4 Nf6 5. Nf3 Bg4

B228 plies

Sicilian Defense: Alapin Variation, Smith-Morra Declined

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4

B2211 plies

Sicilian Defense: Alapin Variation, Stoltz Attack

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Bc4 Nb6 6. Bb3

B2216 plies

Sicilian Defense: 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

B2210 plies

Sicilian Defense: Delayed Alapin Variation

1. e4 c5 2. Nf3 e6 3. c3 d5 4. exd5 Qxd5 5. d4 Nf6

B229 plies

Sicilian Defense: Heidenfeld Variation

1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. Nf3 Nc6 5. Na3

B233 plies

Sicilian Defense: Closed

1. e4 c5 2. Nc3

B234 plies

Sicilian Defense: Closed

1. e4 c5 2. Nc3 e6

B235 plies

Sicilian Defense: Closed

1. e4 c5 2. Nc3 e6 3. g3

B239 plies

Sicilian Defense: Closed, Carlsen Variation

1. e4 c5 2. Nc3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Qd2

B235 plies

Sicilian Defense: Closed, Chameleon Variation

1. e4 c5 2. Nc3 Nc6 3. Nge2

B235 plies

Sicilian Defense: Closed, Grob Attack

1. e4 c5 2. Nc3 Nc6 3. g4

B236 plies

Sicilian Defense: Closed, Korchnoi Defense

1. e4 c5 2. Nc3 e6 3. g3 d5

B234 plies

Sicilian Defense: Closed, Traditional

1. e4 c5 2. Nc3 Nc6

B235 plies

Sicilian Defense: Grand Prix Attack

1. e4 c5 2. Nc3 Nc6 3. f4

B2311 plies

Sicilian Defense: Grand Prix Attack, Schofman Variation

1. e4 c5 2. Nc3 Nc6 3. f4 g6 4. Nf3 Bg7 5. Bc4 e6 6. f5

B246 plies

Sicilian Defense: Closed

1. e4 c5 2. Nc3 Nc6 3. g3 g6

B248 plies

Sicilian Defense: Closed

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7

B245 plies

Sicilian Defense: Closed, Fianchetto Variation

1. e4 c5 2. Nc3 Nc6 3. g3

B2413 plies

Sicilian Defense: Closed, Smyslov Variation

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 e6 6. Be3 Nd4 7. Nce2

B2510 plies

Sicilian Defense: Closed

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6

B2511 plies

Sicilian Defense: Closed

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4

B2514 plies

Sicilian Defense: 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

B2512 plies

Sicilian Defense: Closed, Botvinnik Defense, with Nge2

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Nge2 e5

B2512 plies

Sicilian Defense: Closed, Botvinnik Defense, with f4

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. f4 e5

B2611 plies

Sicilian Defense: Closed

1. e4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7 5. d3 d6 6. Be3

B278 plies

Modern Defense: Pterodactyl Variation

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5

B279 plies

Pterodactyl Defense: Sicilian, Anhanguera

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. Be3

B279 plies

Pterodactyl Defense: Sicilian, Benoni Gambit

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. d5

B2711 plies

Pterodactyl Defense: Sicilian, Pteranodon

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 Bxc3+ 6. bxc3

B279 plies

Pterodactyl Defense: Sicilian, Rhamphorhynchus

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3

B279 plies

Pterodactyl Defense: Sicilian, Unpin

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. Bd2

B278 plies

Pterodactyl Defense: Western, Pterodactyl

1. e4 c5 2. Nf3 g6 3. c3 Bg7 4. d4 Qa5

B278 plies

Pterodactyl Defense: Western, Rhamphorhynchus

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+

B273 plies

Sicilian Defense

1. e4 c5 2. Nf3

B276 plies

Sicilian Defense: Acton Extension

1. e4 c5 2. Nf3 g6 3. c4 Bh6

B274 plies

Sicilian Defense: Brussels Gambit

1. e4 c5 2. Nf3 f5

B274 plies

Sicilian Defense: Bücker Variation

1. e4 c5 2. Nf3 h6

B276 plies

Sicilian Defense: Double-Dutch Gambit

1. e4 c5 2. Nf3 f5 3. exf5 Nh6

B276 plies

Sicilian Defense: Frederico Variation

1. e4 c5 2. Nf3 g6 3. d4 f5

B274 plies

Sicilian Defense: Hyperaccelerated Dragon

1. e4 c5 2. Nf3 g6

B275 plies

Sicilian Defense: Hyperaccelerated Fianchetto

1. e4 c5 2. Nf3 g6 3. d4

B276 plies

Sicilian Defense: Hyperaccelerated Pterodactyl

1. e4 c5 2. Nf3 g6 3. d4 Bg7

B2712 plies

Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation

1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3 Bxc3+ 6. bxc3 Qxc3+

B274 plies

Sicilian Defense: Jalalabad Variation

1. e4 c5 2. Nf3 e5

B274 plies

Sicilian Defense: Katalimov Variation

1. e4 c5 2. Nf3 b6

B274 plies

Sicilian Defense: Mongoose Variation

1. e4 c5 2. Nf3 Qa5

B274 plies

Sicilian Defense: Polish Gambit

1. e4 c5 2. Nf3 b5

B274 plies

Sicilian Defense: Quinteros Variation

1. e4 c5 2. Nf3 Qc7

B284 plies

Sicilian Defense: O'Kelly Variation

1. e4 c5 2. Nf3 a6

B285 plies

Sicilian Defense: O'Kelly Variation, Aronin System

1. e4 c5 2. Nf3 a6 3. Be2

B285 plies

Sicilian Defense: O'Kelly Variation, Kieseritzky System

1. e4 c5 2. Nf3 a6 3. b3

B285 plies

Sicilian Defense: O'Kelly Variation, Maróczy Bind

1. e4 c5 2. Nf3 a6 3. c4

B286 plies

Sicilian Defense: O'Kelly Variation, Maróczy Bind, Paulsen Line

1. e4 c5 2. Nf3 a6 3. c4 e6

B286 plies

Sicilian Defense: O'Kelly Variation, Maróczy Bind, Robatsch Line

1. e4 c5 2. Nf3 a6 3. c4 d6

B285 plies

Sicilian Defense: O'Kelly Variation, Normal System

1. e4 c5 2. Nf3 a6 3. d4

B287 plies

Sicilian Defense: O'Kelly Variation, Normal System, Cortlever Gambit

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Bc4

B287 plies

Sicilian Defense: O'Kelly Variation, Normal System, Smith-Morra Line

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. c3

B288 plies

Sicilian Defense: O'Kelly Variation, Normal System, Taimanov Line

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Nxd4 e5

B287 plies

Sicilian Defense: O'Kelly Variation, Normal System, Zagorovsky Line

1. e4 c5 2. Nf3 a6 3. d4 cxd4 4. Qxd4

B285 plies

Sicilian Defense: O'Kelly Variation, Quiet System

1. e4 c5 2. Nf3 a6 3. d3

B285 plies

Sicilian Defense: O'Kelly Variation, Réti System

1. e4 c5 2. Nf3 a6 3. g3

B285 plies

Sicilian Defense: O'Kelly Variation, Venice System

1. e4 c5 2. Nf3 a6 3. c3

B286 plies

Sicilian Defense: O'Kelly Variation, Venice System, Barcza Line

1. e4 c5 2. Nf3 a6 3. c3 Nf6

B288 plies

Sicilian Defense: O'Kelly Variation, Venice System, Gambit Line

1. e4 c5 2. Nf3 a6 3. c3 d5 4. exd5 Nf6

B286 plies

Sicilian Defense: O'Kelly Variation, Venice System, Ljubojevic Line

1. e4 c5 2. Nf3 a6 3. c3 b5

B286 plies

Sicilian Defense: O'Kelly Variation, Venice System, Steiner Line

1. e4 c5 2. Nf3 a6 3. c3 d6

B285 plies

Sicilian Defense: O'Kelly Variation, Wing Gambit

1. e4 c5 2. Nf3 a6 3. b4

B285 plies

Sicilian Defense: O'Kelly Variation, Yerevan System

1. e4 c5 2. Nf3 a6 3. Nc3

B294 plies

Sicilian Defense: Nimzowitsch Variation

1. e4 c5 2. Nf3 Nf6

B295 plies

Sicilian Defense: Nimzowitsch Variation, Advance Variation

1. e4 c5 2. Nf3 Nf6 3. e5

B295 plies

Sicilian Defense: Nimzowitsch Variation, Closed Variation

1. e4 c5 2. Nf3 Nf6 3. Nc3

B298 plies

Sicilian Defense: Nimzowitsch Variation, Exchange Variation

1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 Nxc3

B2912 plies

Sicilian Defense: Nimzowitsch Variation, Main Line

1. e4 c5 2. Nf3 Nf6 3. e5 Nd5 4. Nc3 e6 5. Nxd5 exd5 6. d4 Nc6

B3012 plies

Sicilian Defense: 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

B3010 plies

Sicilian Defense: Closed, Anti-Sveshnikov Variation, with Nf6

1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 Nf6

B3010 plies

Sicilian Defense: Closed, Anti-Sveshnikov Variation, with d6

1. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 d6

B305 plies

Sicilian Defense: Nyezhmetdinov-Rossolimo Attack

1. e4 c5 2. Nf3 Nc6 3. Bb5

B306 plies

Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Brooklyn Retreat Defense

1. e4 c5 2. Nf3 Nc6 3. Bb5 Nb8

B307 plies

Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco Gambit

1. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. b4

B304 plies

Sicilian Defense: Old Sicilian

1. e4 c5 2. Nf3 Nc6

B305 plies

Sicilian Defense: Portsmouth Gambit

1. e4 c5 2. Nf3 Nc6 3. b4

B316 plies

Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Fianchetto Variation

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6

B3111 plies

Sicilian Defense: 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

B3111 plies

Sicilian Defense: 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

B3111 plies

Sicilian Defense: 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

B3111 plies

Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Gurgenidze Variation

1. e4 c5 2. Nf3 Nc6 3. Bb5 g6 4. O-O Bg7 5. Re1 e5 6. b4

B328 plies

Sicilian Defense: Accelerated Dragon

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6

B328 plies

Sicilian Defense: Flohr Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qc7

B326 plies

Sicilian Defense: Franco-Sicilian Variation

1. e4 c5 2. Nf3 Nc6 3. d4 e6

B328 plies

Sicilian Defense: Godiva Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Qb6

B3210 plies

Sicilian Defense: Kalashnikov Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Nb5 d6

B328 plies

Sicilian Defense: Löwenthal Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5

B328 plies

Sicilian Defense: Nimzo-American Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 d5

B3210 plies

Sicilian Defense: O'Kelly Variation, Maróczy Bind, Geller Line

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 a6 5. c4 e5

B325 plies

Sicilian Defense: Open

1. e4 c5 2. Nf3 Nc6 3. d4

B326 plies

Sicilian Defense: Open

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4

B327 plies

Sicilian Defense: Open

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4

B3310 plies

Sicilian Defense: Lasker-Pelikan Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5

B3316 plies

Sicilian Defense: 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

B3311 plies

Sicilian Defense: Lasker-Pelikan Variation, Exchange Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nxc6

B3311 plies

Sicilian Defense: Lasker-Pelikan Variation, Retreat Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nf3

B3311 plies

Sicilian Defense: Lasker-Pelikan Variation, Schlechter Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Nb3

B3316 plies

Sicilian Defense: 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

B3320 plies

Sicilian Defense: 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

B3317 plies

Sicilian Defense: 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

B3320 plies

Sicilian Defense: 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

B3321 plies

Sicilian Defense: 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

B338 plies

Sicilian Defense: Open

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6

B349 plies

Sicilian Defense: Accelerated Dragon, Exchange Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nxc6

B349 plies

Sicilian Defense: Accelerated Dragon, Modern Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. Nc3

B3513 plies

Sicilian Defense: 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

B3514 plies

Sicilian Defense: 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

B369 plies

Sicilian Defense: Accelerated Dragon, Maróczy Bind

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4

B3614 plies

Sicilian Defense: 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

B3710 plies

Sicilian Defense: Accelerated Dragon, Maróczy Bind

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7

B3714 plies

Sicilian Defense: 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

B3811 plies

Sicilian Defense: Accelerated Dragon, Maróczy Bind

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4 Bg7 6. Be3

B3914 plies

Sicilian Defense: 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

B4010 plies

Sicilian Defense: Alapin Variation, Sherzer Variation

1. e4 c5 2. Nf3 e6 3. c3 Nf6 4. e5 Nd5 5. d4 Nc6

B405 plies

Sicilian Defense: Delayed Alapin Variation, with e6

1. e4 c5 2. Nf3 e6 3. c3

B406 plies

Sicilian Defense: Drazic Variation

1. e4 c5 2. Nf3 e6 3. d4 a6

B404 plies

Sicilian Defense: French Variation

1. e4 c5 2. Nf3 e6

B408 plies

Sicilian Defense: French Variation, Normal

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6

B406 plies

Sicilian Defense: French Variation, Open

1. e4 c5 2. Nf3 e6 3. d4 cxd4

B405 plies

Sicilian Defense: French Variation, Westerinen Attack

1. e4 c5 2. Nf3 e6 3. b3

B4010 plies

Sicilian Defense: Gaw-Paw Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Qb6

B4011 plies

Sicilian Defense: Kan Variation, Wing Attack, Fianchetto Variation

1. e4 c5 2. Nf3 e6 3. Nc3 a6 4. g3 b5 5. d4 cxd4 6. Nxd4

B405 plies

Sicilian Defense: Kramnik Variation

1. e4 c5 2. Nf3 e6 3. c4

B408 plies

Sicilian Defense: Kveinis Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Qb6

B406 plies

Sicilian Defense: Marshall Counterattack

1. e4 c5 2. Nf3 e6 3. d4 d5

B408 plies

Sicilian Defense: Paulsen-Basman Defense

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Bc5

B4010 plies

Sicilian Defense: Pin Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4

B4012 plies

Sicilian Defense: Pin Variation, Jaffe Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. Bd3 e5

B4011 plies

Sicilian Defense: Pin Variation, Koch Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bb4 6. e5

B407 plies

Sicilian Defense: Smith-Morra Gambit Deferred

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. c3

B405 plies

Sicilian Defense: Wing Gambit Deferred

1. e4 c5 2. Nf3 e6 3. b4

B418 plies

Sicilian Defense: Kan Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6

B4114 plies

Sicilian Defense: 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

B4115 plies

Sicilian Defense: 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

B4110 plies

Sicilian Defense: Kan Variation, Maróczy Bind, Hedgehog Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4 g6

B419 plies

Sicilian Defense: Kan Variation, Maróczy Bind, Réti Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. c4

B4214 plies

Sicilian Defense: 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

B429 plies

Sicilian Defense: Kan Variation, Modern Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3

B4210 plies

Sicilian Defense: Kan Variation, Polugaevsky Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 Bc5

B4210 plies

Sicilian Defense: Kan Variation, Swiss Cheese Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Bd3 g6

B439 plies

Sicilian Defense: Kan Variation, Knight Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3

B4310 plies

Sicilian Defense: Kan Variation, Wing Attack

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5. Nc3 b5

B4315 plies

Sicilian Defense: 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

B4313 plies

Sicilian Defense: 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

B448 plies

Sicilian Defense: Taimanov Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6

B4416 plies

Sicilian Defense: 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

B4420 plies

Sicilian Defense: 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

B449 plies

Sicilian Defense: Taimanov Variation, Szén Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nb5

B4510 plies

Sicilian Defense: Four Knights Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6

B4513 plies

Sicilian Defense: 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+

B4512 plies

Sicilian Defense: Four Knights Variation, Cobra Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 Bc5

B4511 plies

Sicilian Defense: Four Knights Variation, Exchange Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Nxc6

B4512 plies

Sicilian Defense: Four Knights Variation, Sveshnikov Transfer

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Nf6 6. Ndb5 d6

B459 plies

Sicilian Defense: Taimanov Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3

B4610 plies

Sicilian Defense: Taimanov Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 a6

B4710 plies

Sicilian Defense: Taimanov Variation, Bastrikov Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7

B4715 plies

Sicilian Defense: 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

B4811 plies

Sicilian Defense: Taimanov Variation, Bastrikov Variation, English Attack

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3

B4913 plies

Sicilian Defense: Taimanov Variation, Bastrikov Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 Qc7 6. Be3 a6 7. Be2

B505 plies

Sicilian Defense

1. e4 c5 2. Nf3 d6 3. d4

B506 plies

Sicilian Defense

1. e4 c5 2. Nf3 d6 3. d4 cxd4

B5017 plies

Sicilian Defense: 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

B5012 plies

Sicilian Defense: Delayed Alapin Variation, Basman-Palatnik Gambit

1. e4 c5 2. Nf3 d6 3. c3 Nf6 4. Be2 Nc6 5. d4 cxd4 6. cxd4 Nxe4

B505 plies

Sicilian Defense: Delayed Alapin Variation, with d6

1. e4 c5 2. Nf3 d6 3. c3

B505 plies

Sicilian Defense: Kopec System

1. e4 c5 2. Nf3 d6 3. Bd3

B506 plies

Sicilian Defense: Kotov Gambit

1. e4 c5 2. Nf3 d6 3. g3 b5

B504 plies

Sicilian Defense: Modern Variations

1. e4 c5 2. Nf3 d6

B506 plies

Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order

1. e4 c5 2. Nf3 d6 3. d4 Nf6

B508 plies

Sicilian Defense: Modern Variations, Anti-Qxd4 Move Order Accepted

1. e4 c5 2. Nf3 d6 3. d4 Nf6 4. dxc5 Nxe4

B507 plies

Sicilian Defense: Modern Variations, Tartakower

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. c3

B505 plies

Sicilian Defense: Wing Gambit, Deferred Variation

1. e4 c5 2. Nf3 d6 3. b4

B515 plies

Sicilian Defense: Moscow Variation

1. e4 c5 2. Nf3 d6 3. Bb5+

B5111 plies

Sicilian Defense: Moscow Variation, Dorfman Gambit

1. e4 c5 2. Nf3 d6 3. Bb5+ Nc6 4. O-O Bd7 5. Qe2 g6 6. e5

B5117 plies

Sicilian Defense: 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

B5213 plies

Sicilian Defense: 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

B526 plies

Sicilian Defense: Moscow Variation, Main Line

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7

B529 plies

Sicilian Defense: Moscow Variation, Sokolsky Variation

1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 4. Bxd7+ Qxd7 5. c4

B537 plies

Sicilian Defense: Chekhover Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4

B5310 plies

Sicilian Defense: Chekhover Variation, Zaitsev Defense

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Qxd4 Nc6 5. Bb5 Qd7

B548 plies

Sicilian Defense: Dragon Variation, Accelerated Dragon

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 g6

B549 plies

Sicilian Defense: Modern Variations, Ginsberg Gambit

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Bc4

B548 plies

Sicilian Defense: Modern Variations, Main Line

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6

B549 plies

Sicilian Defense: Prins Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3

B5511 plies

Sicilian Defense: Prins Variation, Venice Attack

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. f3 e5 6. Bb5+

B5610 plies

Sicilian Defense: Classical Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6

B5611 plies

Sicilian Defense: Classical Variation, Fianchetto Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. g3

B5610 plies

Sicilian Defense: Kupreichik Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Bd7

B5611 plies

Sicilian Defense: Spielmann Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Nde2

B5611 plies

Sicilian Defense: Venice Attack

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5 6. Bb5+

B5611 plies

Sicilian Defense: Yates Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bd3

B5712 plies

Sicilian Defense: Classical Variation, Anti-Sozin Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 Qb6

B5711 plies

Sicilian Defense: Classical Variation, Sozin Attack

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4

B5715 plies

Sicilian Defense: 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

B5812 plies

Sicilian Defense: Boleslavsky Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2 e5

B5813 plies

Sicilian Defense: Boleslavsky Variation, Louma Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nxc6

B5811 plies

Sicilian Defense: Classical Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Be2

B5814 plies

Sicilian Defense: 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

B5913 plies

Sicilian Defense: Boleslavsky Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5 7. Nb3

B6011 plies

Sicilian Defense: Richter-Rauzer Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5

B6012 plies

Sicilian Defense: Richter-Rauzer Variation, Dragon Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 g6

B6012 plies

Sicilian Defense: Richter-Rauzer Variation, Modern Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 Bd7

B6113 plies

Sicilian Defense: 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

B6212 plies

Sicilian Defense: Richter-Rauzer Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6

B6213 plies

Sicilian Defense: Richter-Rauzer Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd3

B6213 plies

Sicilian Defense: 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

B6213 plies

Sicilian Defense: 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

B6213 plies

Sicilian Defense: 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

B6314 plies

Sicilian Defense: 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

B6320 plies

Sicilian Defense: 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

B6314 plies

Sicilian Defense: 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

B6313 plies

Sicilian Defense: 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

B6418 plies

Sicilian Defense: 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

B6417 plies

Sicilian Defense: 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

B6519 plies

Sicilian Defense: 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

B6518 plies

Sicilian Defense: 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

B6614 plies

Sicilian Defense: 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

B6716 plies

Sicilian Defense: 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

B6818 plies

Sicilian Defense: 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

B6921 plies

Sicilian Defense: 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

B7010 plies

Sicilian Defense: Dragon Variation

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

B7011 plies

Sicilian Defense: Dragon Variation, Classical Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2

B7011 plies

Sicilian Defense: Dragon Variation, Fianchetto Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. g3

B7111 plies

Sicilian Defense: Dragon Variation, Levenfish Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4

B7112 plies

Sicilian Defense: Dragon Variation, Levenfish Variation, Main Line

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4 Nbd7

B7211 plies

Sicilian Defense: Dragon Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3

B7213 plies

Sicilian Defense: Dragon Variation, Classical Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. Be2

B7214 plies

Sicilian Defense: 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

B7215 plies

Sicilian Defense: 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

B7215 plies

Sicilian Defense: 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

B7217 plies

Sicilian Defense: 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

B7315 plies

Sicilian Defense: 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

B7317 plies

Sicilian Defense: 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

B7319 plies

Sicilian Defense: 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

B7418 plies

Sicilian Defense: 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

B7426 plies

Sicilian Defense: 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

B7420 plies

Sicilian Defense: 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

B7417 plies

Sicilian Defense: 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

B7423 plies

Sicilian Defense: 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

B7427 plies

Sicilian Defense: 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

B7420 plies

Sicilian Defense: 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

B7514 plies

Sicilian Defense: 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

B7513 plies

Sicilian Defense: 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

B7514 plies

Sicilian Defense: 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

B7614 plies

Sicilian Defense: 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

B7616 plies

Sicilian Defense: 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

B7617 plies

Sicilian Defense: 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

B7617 plies

Sicilian Defense: 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

B7718 plies

Sicilian Defense: 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

B7718 plies

Sicilian Defense: 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

B7720 plies

Sicilian Defense: 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

B7717 plies

Sicilian Defense: 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

B7718 plies

Sicilian Defense: 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

B7819 plies

Sicilian Defense: 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

B7820 plies

Sicilian Defense: 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

B7820 plies

Sicilian Defense: 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

B7923 plies

Sicilian Defense: 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

B7924 plies

Sicilian Defense: 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

B8010 plies

Sicilian Defense: Scheveningen Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6

B8013 plies

Sicilian Defense: 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

B8011 plies

Sicilian Defense: Scheveningen Variation, Fianchetto Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g3

B8011 plies

Sicilian Defense: Scheveningen Variation, Vitolins Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bb5+

B8111 plies

Sicilian Defense: Scheveningen Variation, Keres Attack

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4

B8211 plies

Sicilian Defense: Scheveningen Variation, Matanovic Attack

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. f4

B8215 plies

Sicilian Defense: 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

B8311 plies

Sicilian Defense: Scheveningen Variation, Classical Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2

B8312 plies

Sicilian Defense: Scheveningen Variation, Modern Variation

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6 5. Nc3 d6 6. Be2 Nf6

B8317 plies

Sicilian Defense: 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

B8319 plies

Sicilian Defense: 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

B8414 plies

Sicilian Defense: 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

B8412 plies

Sicilian Defense: Scheveningen Variation, Classical Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2 e6

B8414 plies

Sicilian Defense: 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

B8520 plies

Sicilian Defense: 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

B8516 plies

Sicilian Defense: 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

B8517 plies

Sicilian Defense: 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

B8519 plies

Sicilian Defense: 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

B8611 plies

Sicilian Defense: Sozin Attack

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4

B8714 plies

Sicilian Defense: 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

B8817 plies

Sicilian Defense: 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

B8812 plies

Sicilian Defense: Sozin Attack, Leonhardt Variation

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6

B8913 plies

Sicilian Defense: Sozin Attack, Main Line

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3

B8920 plies

Sicilian Defense: 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

B8915 plies

Sicilian Defense: 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

B9010 plies

Sicilian Defense: Najdorf Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6

B9011 plies

Sicilian Defense: Najdorf Variation, Adams Attack

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3

B9011 plies

Sicilian Defense: Najdorf Variation, Dekker Gambit

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g4

B9011 plies

Sicilian Defense: Najdorf Variation, English Attack

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3

B9012 plies

Sicilian Defense: Najdorf Variation, English Attack, Anti-English

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be3 Ng4

B9011 plies

Sicilian Defense: Najdorf Variation, Freak Attack

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Rg1

B9011 plies

Sicilian Defense: Najdorf Variation, Lipnitsky Attack

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bc4

B9013 plies

Sicilian Defense: 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

B9017 plies

Sicilian Defense: 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

B9013 plies

Sicilian Defense: 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

B9111 plies

Sicilian Defense: Najdorf Variation, Zagreb Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. g3

B9211 plies

Sicilian Defense: Najdorf Variation, Opocensky Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Be2

B9215 plies

Sicilian Defense: 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

B9216 plies

Sicilian Defense: 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

B9216 plies

Sicilian Defense: 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

B9311 plies

Sicilian Defense: Najdorf Variation, Amsterdam Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f4

B9411 plies

Sicilian Defense: Najdorf Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5

B9423 plies

Sicilian Defense: 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

B9512 plies

Sicilian Defense: Najdorf Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6

B9613 plies

Sicilian Defense: Najdorf Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4

B9614 plies

Sicilian Defense: 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

B9614 plies

Sicilian Defense: 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

B9619 plies

Sicilian Defense: 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

B9718 plies

Sicilian Defense: 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

B9714 plies

Sicilian Defense: 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

B9814 plies

Sicilian Defense: Najdorf Variation

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Be7

B9818 plies

Sicilian Defense: 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

B9818 plies

Sicilian Defense: 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

B9816 plies

Sicilian Defense: 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

B9918 plies

Sicilian Defense: 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