ECO A27: English Opening

ECO A27 is part of volume A — Flank Openings. The Lichess chess-openings dataset files one named line under it. It is English Opening: King's English Variation, Three Knights System: 1. c4 e5 2. Nc3 Nc6 3. Nf3.

That position has come up in 1,289,498 Lichess games between players rated 1600 to 2500: White won 52.0%, 5.3% were drawn and Black won 42.6%.