ECO volume B: Semi-open games (other than the French)

ECO B63

4 named openings and variations are classified as B63. ECO (Encyclopaedia of Chess Openings) codes group openings from A00 to E99 by their opening moves.

Sicilian Defense: Richter-Rauzer Variation, Classical VariationB631. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7
Sicilian Defense: Richter-Rauzer Variation, Classical Variation, Kantscher LineB631. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O Nxd4 9. Qxd4 a6 10. f4 b5
Sicilian Defense: Richter-Rauzer Variation, Ivanov VariationB631. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Qb6
Sicilian Defense: Richter-Rauzer Variation, Traditional VariationB631. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2