ECO B64: Sicilian Defense: Richter-Rauzer Variation

ECO B64 is part of volume B, Semi-Open Games. The Lichess chess-openings dataset files 2 named lines under it. The shortest is Sicilian Defense: Richter-Rauzer Variation, Classical Variation: 1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. Bg5 e6 7. Qd2 Be7 8. O-O-O O-O 9. f4. All of them are lines of the Sicilian Defense: Richter-Rauzer Variation.

That position has come up in 26,666 Lichess games between players rated 1600 to 2500: White won 50.6%, 6.6% were drawn and Black won 42.8%.