D91 white d4
Grünfeld Defense: Three Knights Variation, Petrosian System
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Opening Moves
1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Bg5
Learn this Opening
Study the Grünfeld Defense: Three Knights Variation, Petrosian System with spaced repetition. Our algorithm schedules reviews at optimal intervals so you never forget the key moves.