├── B50 - 1. e4 c5 2. Nf3 d6 - Sicilian Defense: Modern Variations (42)
├── B51 - 1. e4 c5 2. Nf3 d6 3. Bb5+ - Sicilian Defense: Moscow Variation (29)
├── B52 - 1. e4 c5 2. Nf3 d6 3. Bb5+ Bd7 - Sicilian Defense: Moscow Variation, Main Line (29)
├── B53 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (6)
├── B54 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (10)
├── B55 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (0)
├── B56 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (4)
├── B57 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bc4 - Sicilian Defense: Classical Variation, Sozin Attack (3)
├── B57 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (0)
├── B58 - 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4.... - Sicilian Defense (0)
└── B59 - 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4.... - Sicilian Defense (0)