Sicilian Defense Old Sicilian Variation 3.Bc4 e6 30 Sicilian Defense Open 25 Sicilian Defense Open Accelerated Dragon Exchange Variation 5...bxc6 21 Sicilian Defense Open 3...cxd4 4.Nxd4 20 Sicilian Defense French Variation 20 Sicilian Defense Open Lowenthal Variation 5.Nxc6 bxc6 18 Sicilian Defense Open 3...cxd4 4.Nxd4 d6 12 Sicilian Defense French Variation 3.d4 10 Sicilian Defense Old Sicilian Variation 3.Bc4 9 Sicilian Defense 2.Nf3 d6 3.Bc4 Nf6 4.Nc3 9 Sicilian Defense Taimanov Variation 5.Nxc6 bxc6 7 Sicilian Defense Smith Morra Gambit 2...cxd4 3.Qxd4 Nc6 7 Sicilian Defense Nyezhmetdinov Rossolimo Attack 3...a6 4.Bxc6 bxc6 7 Sicilian Defense Canal Attack 3...Nc6 4.Bxc6 bxc6 7 Sicilian Defense Bowdler Attack 2...Nc6 7 Sicilian Defense Bowdler Attack 7 Sicilian Defense 2.Nf3 d6 3.Bc4 Nc6 7 Sicilian Defense 2.Nf3 7 Sicilian Defense Open Variation 4...e5 6 Sicilian Defense Old Sicilian Variation 3.Bc4 e6 4.Nc3 6 Sicilian Defense Nyezhmetdinov Rossolimo Attack 3...e6 4.Nc3 6 Sicilian Defense Nyezhmetdinov Rossolimo Attack 3...Nd4 4.Nxd4 cxd4 6 Sicilian Defense Marshall Counterattack 4.exd5 exd5 6 Sicilian Defense Keres Variation 2...e6 3.d4 6 Sicilian Defense Open Pelikan and Sveshnikov Exchange Variation 6...bxc6 5 Sicilian Defense Open 3...cxd4 4.Nxd4 d6 5.Nc3 5 Sicilian Defense Old Sicilian Variation 3.d3 d6 5 Sicilian Defense Old Sicilian Open Accelerated Dragon Variation 5.Bc4 Bg7 5 Sicilian Defense Nyezhmetdinov Rossolimo Attack 3...e6 4.Bxc6 bxc6 5.d3 5 Sicilian Defense Nyezhmetdinov Rossolimo Attack 3...Qc7 5 Sicilian Defense Keres Variation 5 Sicilian Defense Katalimov Variation 3.d4 5 Sicilian Defense Taimanov Variation 5.Nc3 4 Sicilian Defense Open...4.Nxd4 Nf6 5.Nxc6 bxc6 4 Sicilian Defense Open Classical Variation 6.Nxc6 bxc6 4 Sicilian Defense Open Accelerated Dragon Modern Variation 5...Bg7 4 Sicilian Defense Old Sicilian Variation 3.Bc4 e6 4.Nc3 a6 4 Sicilian Defense Keres Variation 2...Nc6 3.d4 4 Sicilian Defense Hyperaccelerated Dragon Variation 3.Bc4 Bg7 4 Sicilian Defense French Variation 3.d3 Nc6 4 Sicilian Defense Canal Attack...4.d4 cxd4 5.Nxd4 Bd7 4 Sicilian Defense 2.Nf3 d6 3.d4 4 Sicilian Defense 2.Nf3 d6 3.Bc4 4 Closed Sicilian Defense Traditional Line 3.Nf3 e5 4 Alapin Sicilian Defense Barmen Defense...5.Nf3 Bg4 6.Be2 cxd4 7.cxd4 4 Alapin Sicilian Defense Barmen Defense 4.d4 cxd4 5.cxd4 Nc6 4 Alapin Sicilian Defense Barmen Central Exchange Line 7.Nc3 4 Sicilian Defense Taimanov Variation 3 Sicilian Defense Smith Morra Gambit 2...cxd4 3.Qxd4 Nc6 4.Qd1 3 Sicilian Defense Open Variation 3