Colle System: Pterodactyl Variation (A40)
1. d4 g6 2. Nf3 Bg7 3. e3 c5 4. Bd3 Qa5+
Drag the pieces to play moves from this position.
Colle System: Pterodactyl Variation (ECO A40) is a chess opening starting with 1. d4 g6 2. Nf3 Bg7 3. e3 c5 4. Bd3 Qa5+. See its main lines, common continuations, and win/draw/loss statistics from real games.
Common Continuations
No known continuations.