Colle System: Pterodactyl Variation
ECO A408 half-movesWhite to move
Moves
1. d4 g6 2. Nf3 Bg7 3. e3 c5 4. Bd3 Qa5+
The Colle System: Pterodactyl Variation (A40) reaches this position after 8 half-moves, with White to move. Want to know why each move is played, the plans for both sides, and the traps to avoid? Step through it on an interactive board while the Chess Guru explains every idea in plain English.