Drag a piece to play a move, or pick one from the list. Arrow keys step through the line.
1.d4 g6 2.Nf3 Bg7 3.g3 c5 4.Bg2 Qa5+ · ECO A40
Pterodactyl Defense: Fianchetto, Queen Pterodactyl is a chess opening that arises after 1.d4 g6 2.Nf3 Bg7 3.g3 c5 4.Bg2 Qa5+. It is classified A40 in the ECO system, and the position after these moves has white to move.
This line is a variation within the Pterodactyl Defense family. The strategic ideas above describe the family as a whole; this particular line reaches them by the move order 1.d4 g6 2.Nf3 Bg7 3.g3 c5 4.Bg2 Qa5+.