ECO D90: Grünfeld Defense: Three Knights Variation

ECO D90 is part of volume D, Closed & Semi-Closed Games. The Lichess chess-openings dataset files 3 named lines under it. The shortest is Grünfeld Defense: Three Knights Variation: 1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3. 2 of the 3 are lines of the Grünfeld Defense: Three Knights Variation. The most played is Grünfeld Defense: Three Knights Variation, reached in 2,752,627 rated Lichess games.

That position has come up in 1,869,049 Lichess games between players rated 1600 to 2500: White won 48.0%, 6.3% were drawn and Black won 45.7%.