Pterodactyl Defense: Central, Quetzalcoatlus Gambit

1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. dxc5 Qa5

Pterodactyl Defense: Central, Quetzalcoatlus Gambit after 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. dxc5 Qa5 87654321abcdefgh

The Pterodactyl Defense: Central, Quetzalcoatlus Gambit is a chess opening classified as ECO B06, reached after 1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. dxc5 Qa5. It is a line of the Pterodactyl Defense. White is to move.

This exact move order didn't appear in our sample of 12.6 million Lichess games: it's a rare line.

Engine evaluation: +1.54 (Stockfish, depth 23; best line 6. cxd6 Bxc3+ 7. bxc3 Nc6 8. Ne2 Be6)

ECO
B06
Moves
10 plies
FEN
rnb1k1nr/pp2ppbp/3p2p1/q1P5/2P1P3/2N5/PP3PPP/R1BQKBNR w KQkq - 1 6
PGN
1. e4 g6 2. d4 Bg7 3. c4 c5 4. Nc3 d6 5. dxc5 Qa5

Analyse with Stockfish · Board image (SVG) · Open on Lichess

Comes from

Modern Defense (2. d4 Bg7) 1. e4 g6 2. d4 Bg7

More Pterodactyl Defense lines (all)

Opening names and moves from the Lichess openings dataset; statistics from the Lichess open database, 2026-09 (CC0), sample of 12.6 million games, bots excluded; evaluations from Lichess cloud analysis (all CC0). Master games from The Week in Chess #920–#1664 by Mark Crowther, used with permission.