ECO A71: Benoni Defense

ECO A71 is part of volume A — Flank Openings. The Lichess chess-openings dataset files one named line under it. It is Benoni Defense: Classical Variation, Averbakh-Grivas Attack: 1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 exd5 5. cxd5 d6 6. Nc3 g6 7. e4 Bg7 8. Bg5.

That position has come up in 129,246 Lichess games between players rated 1600 to 2500: White won 43.8%, 4.3% were drawn and Black won 51.9%.