ECO A40

Pterodactyl Defense: Queen Pterodactyl, Quiet Line

Pterodactyl Defense: Queen Pterodactyl, Quiet Line is a chess opening classified under ECO A40. Its defining line here is 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. e3.

1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. e3

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The diagram shows the position after 1. d4 g6 2. c4 Bg7 3. Nc3 c5 4. e3. Play through it move by move in the interactive explorer.

Opening name, ECO code, and main line come from the Lichess open chess openings dataset.