ECO D96: Grünfeld Defense

ECO D96 is part of volume D — Closed & Semi-Closed Games. The Lichess chess-openings dataset files one named line under it. It is Grünfeld Defense: Russian Variation: 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3.

That position has come up in 196,548 Lichess games between players rated 1600 to 2500: White won 50.3%, 6.5% were drawn and Black won 43.3%.