B27
Pterodactyl Defense: Sicilian, Rhamphorhynchus
1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3
The Pterodactyl Defense: Sicilian, Rhamphorhynchus is a chess opening classified under ECO code B27. It is reached after the moves 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3.
It belongs to the Pterodactyl Defense family — one of many ways the line can branch. Understanding the parent system’s plans is the fastest way to play this variation well.
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