ECO B30
9 named openings and variations are classified as B30. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.
- Sicilian Defense: Closed, Anti-Sveshnikov VariationB301. e4 c5 2. Nf3 Nc6 3. Nc3 e5
- Sicilian Defense: Closed, Anti-Sveshnikov Variation, Kharlov-Kramnik LineB301. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 d6 6. Nd2 Bg5
- Sicilian Defense: Closed, Anti-Sveshnikov Variation, with Nf6B301. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 Nf6
- Sicilian Defense: Closed, Anti-Sveshnikov Variation, with d6B301. e4 c5 2. Nf3 Nc6 3. Nc3 e5 4. Bc4 Be7 5. d3 d6
- Sicilian Defense: Nyezhmetdinov-Rossolimo AttackB301. e4 c5 2. Nf3 Nc6 3. Bb5
- Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, Brooklyn Retreat DefenseB301. e4 c5 2. Nf3 Nc6 3. Bb5 Nb8
- Sicilian Defense: Nyezhmetdinov-Rossolimo Attack, San Francisco GambitB301. e4 c5 2. Nf3 Nc6 3. Bb5 Na5 4. b4
- Sicilian Defense: Old SicilianB301. e4 c5 2. Nf3 Nc6
- Sicilian Defense: Portsmouth GambitB301. e4 c5 2. Nf3 Nc6 3. b4