Home › Openings › Queen's Pawn Game › Queen's Pawn Game: Colle System Queen's Pawn Game: Colle System, Grünfeld Formation ECO D04 · 1. d4 d5 2. Nf3 Nf6 3. e3 g6 4. Bd3 Bg7 Related variationsQueen's Pawn Game: Colle System, Anti-ColleQueen's Pawn Game: Colle System, Traditional Colle Practice this opening · Play against the computer