ECO B81: Sicilian Defense

ECO B81 is part of volume B — Semi-Open Games. The Lichess chess-openings dataset files one named line under it. It is Sicilian Defense: Scheveningen Variation, Keres Attack: 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4.

That position has come up in 133,305 Lichess games between players rated 1600 to 2500: White won 54.7%, 5.1% were drawn and Black won 40.3%.