Pterodactyl Defense: Central, Benoni Pterodactyl

The Pterodactyl Defense: Central, Benoni Pterodactyl is a chess opening classified under ECO code A40 in the Flank Openings family, characterized by moves like 1.c4, 1.Nf3, or 1.f4, aiming to control the center indirectly. It is reached after 4 moves: 1. d4 g6 2. c4 Bg7 3. e4 c5 4. d5 Qa5+. The resulting position leaves white to move.