Chess opening
Colle System: Pterodactyl VariationA40
The Colle System: Pterodactyl Variation is a chess opening classified under ECO code A40. It is reached after the moves:
1. d4 g6 2. Nf3 Bg7 3. e3 c5 4. Bd3 Qa5+
Play it vs Stockfish Open in analysis board
Comes from
Related lines in the Colle System
Train this opening
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