All ECO Codes
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B31
Sicilian Defence
Nimzovich-Rossolimo Attack (with ...g6, Without ...d6)
1.e4 c5 2.Nf3 Nc6 3.Bb5 g6
B31
Sicilian Defence
Nimzovich-Rossolimo Attack, Gurgenidze Variation
1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.O-O Bg7 5.Re1 e5 6.b4