A40

Pterodactyl Defense: Fianchetto, Queen Pterodactyl

1. d4 g6 2. Nf3 Bg7 3. g3 c5 4. Bg2 Qa5+

The Pterodactyl Defense: Fianchetto, Queen Pterodactyl is a chess opening classified under ECO code A40. It is reached after the moves 1. d4 g6 2. Nf3 Bg7 3. g3 c5 4. Bg2 Qa5+.

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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