ECO A93: Dutch Defense

ECO A93 is part of volume A — Flank Openings. The Lichess chess-openings dataset files one named line under it. It is Dutch Defense: Stonewall Variation, Botvinnik Variation: 1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5 7. b3.

That position has come up in 11,947 Lichess games between players rated 1600 to 2500: White won 51.6%, 8.6% were drawn and Black won 39.8%.