[Event "Queen's Pawn Game: Colle System"]
[Site "https://chessily.com/openings/"]
[Result "*"]

1. d4 d5 (1... Nf6 2. Nf3 e6 3. e3 b6 (3... c5 4. Bd3 d5 5. c3) 4. Bd3 Bb7 5. O-O c5 6. b3 Be7 7. Bb2 O-O 8. Nbd2 d5) 2. Nf3 Nf6 3. e3 e6 (3... Bf5) (3... g6 4. Bd3 Bg7) 4. b3 (4. Bd3) c5 5. Bb2 Nc6 6. Bd3 (6. Nbd2) *
