Sicilian Defense
Main Open Variations:
1.e4 c5 2.Nf6 d6/Nc6/e6 3.d4 cxd4 4.Nf6 Nc3
Dragon (2...d6, 5...g6) Najdorf (2...d6, 5...a6)
6.Be3 Be7 Yugoslav 6.Bg5 e6 Old Main Line
6.Be2 Be7 Classical 6.Be3 e5 English
6.f4 Nc6 Levenfish 6.Be2 e5
6.g3 Nc6
Scheveningen (2...d6, 5...e6) Classical (2...d6, 5...Nc6)
6.g4 h6 Keres 6.Bg5 e6 Richter-Rauzer
6.Be3 a6 English 6.Bc4 e6 Sozin 7.Be3 a6 8.Qe2 Velimirovic
6.Be2 a6 6.Be2 e5 Boleslavsky
6.Bc4 a6 Fischer
Sveshnikov Kalashnikov Accelerated Dragon
2...Nc6, 5...e5 2...Nc6, 4...e5 2...Nc6, 4...g6
Kan Taimanov Four Knights
2...e6, 4...a6 2...e6, 4...Nc6 2...e6, 5...Nc6
1.Dragon Variation
(2...d6) 5...g6
1-1. Yugoslav Attack
6.Be3 Bg7 7.f3 0-0 8.Qd2 Nc6 9.Bc4 Bd7 10.0-0-0
->
1-2. Classical Variation
6.Be2 Bg7 7.0-0 Nc6 8.Be3 0-0 9.Nb3 Be6
->
1-3. Levenfish Attack
6.f4 Nc6 7.Nxc6 bxc6 8.e5 Nd7 9.exd6 exd6
->
1-4. 6.g3
6.g3 Nc6 7.Nde2 Bg7 8.Bg2 0-0 9.0-0
->
2.Najdorf Variation
(2...d6) 5...a6
2-1. Old Main Line
6.Bg5 e6 7.f4 Be7 8.Qf3 Qc7 9.0-0-0 Nbd7 10.g4 b5 11.Bxf6 Nxf6 12.g5 Nd7
->
2-2. English Attack
6.Be3 e5 7.Nb3 Be6 8.f3 Nbd7 9.g4 b5
->
2-3. 6.Be2
6.Be2 e5 7.Nb3 Be7 8.0-0 0-0 9.Be3 Be6 10.Qd2 Nbd7 11.a4 Rc8 12.a5 Qc7 13.Rfd1
->
3.Scheveningen Variation
(2...d6) 5...e6
3-1. Keres Attack
6.g4 h6 7.h4 Nc6 8.Rg1 h5 9.gxh5 Nxh5 10.Bg5 Nf6
->
3-2. English Attack
6.Be3 a6 7.Qd2 b5 8.f3 Nbd7 9.g4 h6 10.0-0-0 Bb7
->
3-3. 6.Be2
6.Be2 a6 7.0-0 Be7 8.f4 0-0 9.Be3 Nc6 10.a4 Qc7 11.Kh1
->
3-4. Fischer Attack
6.Bc4 a6 7.Bb3 b5 8.0-0 Be7 9.Qf3 Qc7 10.Qg3 0-0
->
4.Sveshnikov Variation
(2...Nc6) 5...e5 6.Ndb5 d6 7.Bg5 a6 8.Na3 b5
->
4-1. 9.Bxf6
9.Bxf6 gxf6 10.Nd5 f5 11.c3 Bg7 12.exf5 Bxf5 13.Nc2 0-0 14.Nce3 Be6 15.Bd3 f5
->
4-2. 9.Nd5
9.Nd5 Be7 10.Bxf6 Bxf6 11.c3 0-0 12.Nc2 Bg5 13.a4 bxa4 14.Rxa4 a5
->
5.Classical Variation
(2...d6) 5...Nc6
5-1. Richter-Rauzer Attack
6.Bg5 e6 7.Qd2 a6 8.0-0-0 h6 9.Be3 Be7 10.f4 Nxd4 11.Bxd4 b5
->
5-2. Sozin Line, Velimirovic Attack
6.Bc4 e6 7.Be3 a6 8.Qe2 Be7 9.0-0-0 0-0 10.Bb3 Qc7
->
->
5-3. Boleslavsky Variation
6.Be2 e5 7.Nf3 h6 8.0-0 Be7 9.Re1 0-0 10.h3 Be6 11.Bf1
->
6.Other Open Sicilians
6-1. Taimanov Variation
(2...e6) 4...Nc6 5.Nc3 Qc7 6.Be2 a6 7.Be3 Nf6 8.0-0 Bb4 9.Na4 Be7 10.c4 Nxe4 11.c5 0-0 12.Rc1
->
6-2. Accelerated Dragon
(2...Nc6) 4...g6 5.c4 Bg7 6.Be3 Nf6 7.Nc3 0-0 8.Be2 d6 9.0-0 Bd7 10.Qd2 Nxd4
11.Bxd4 Bc6 12.f3 a5 13.b3 Nd7 14.Be3
->
6-3. Sicilian Four Knights
(2...e6) 5...Nc6 6.Ndb5 Bb4 7.a3 Bxc3 8.Nxc3 d5 9.exd5 exd5 10.Bd3 0-0 11.0-0
->
6-4. Kan Variation
(2...e6) 4...a6 5.Bd3 Nf6 6.0-0 Qc7 7.Qe2 d6 8.c4
->
6-5. Kalashnikov Variation
(2...Nc6) 4...e5 5.Nb5 d6 6.c4 Be7 7.N1c3 a6 8.Na3 Be6 9.Be2 Bg5 10.Nc2 Bxc1 11.Rxc1 Nf6 12.0-0 0-0
->
7.Bb5 Systems
7-1. Rossolimo Variation
2...Nc6 3.Bb5 g6 4.0-0 Bg7 5.Re1 Nf6 6.c3 0-0 7.d4 d5 8.e5 Ne4
->
7-2. Moscow Variation
2...d6 3.Bb5+ Bd7 4.Bxd7 Qxd7 5.c4 Nc6 6.0-0 Nf6 7.Nc3 g6 8.d4 cxd4 9.Nxd4 Bg7 10.Nde2
->
8.c3 Sicilian
8-1. 2...d5
2.c3 d5 3.exd5 Qxd5 4.d4 Nf6 5.Nf3 e6 6.Be3 cxd4 7.cxd4 Nc6 8.Nc3 Qd6 9.a3 Be7 10.Bd3 0-0 11.0-0
->
8-2. 2...Nf6
2.c3 Nf6 3.e5 Nd5 4.d4 cxd4 5.Nf3 Nc6 6.Bc4 Nb6 7.Bb3 d5 8.exd6 Qxd6 9.0-0 Be6
->
9.Other Systems
9-1. Closed Sicilian
2.Nc3 Nc6 3.g3 g7 4.Bg2 Bg7 5.d3 d6 6.Be3 Rb8 7.Qd2 b5 8.Nge2 Nd4 9.0-0 b4 10.Nd1
->
9-2. Grand Prix Attack
2.Nc3 Nc6 3.f4 g7 4.Nf3 Bg7 5.Bb5 Nd4
->
9-3. Morra Gambit
2.d4 cxd4 3.c3 dxc3 4.Nxc3 Nc6 5.Nf3 d6 6.Bc4 e6 7.0-0 Nf6 8.Qe2 Be7 9.Rd1 e5 10.h3 0-0
->
