Pterodactyl Defense: Sicilian, Quetzalcoatlus
1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 Qa5 5. Be2 d6
The Pterodactyl Defense: Sicilian, Quetzalcoatlus is a chess opening classified as ECO B06, reached after 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 Qa5 5. Be2 d6. 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: +0.59 (Stockfish, depth 28; best line 6. d5 Bg4 7. Qd3 Nd7 8. Bd2 Rc8)
- ECO
- B06
- Moves
- 10 plies
- FEN
rnb1k1nr/pp2ppbp/3p2p1/q1p5/3PP3/2N2N2/PPP1BPPP/R1BQK2R w KQkq - 0 6- PGN
1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. Nf3 Qa5 5. Be2 d6
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Master games
1 over-the-board game is classified under this line (White 100%, draw 0%, Black 0%). The strongest:
- FM Alexander Andres Hernandez Jimenez (2026) – FM Charles H Storey (2149) 1-0 · Titled Tue 21st May Late · 2024-05-21
Search all games of the Pterodactyl Defense: Sicilian, Quetzalcoatlus and its sub-variations
Comes from
Modern Defense: Modern Pterodactyl 1. e4 g6 2. d4 Bg7 3. Nc3 c5
More Pterodactyl Defense lines (all)
- Pterodactyl Defense: Central, Benoni Beefeater Pterodactyl A40
- Pterodactyl Defense: Central, Benoni Pterodactyl A40
- Pterodactyl Defense: Fianchetto, Queen Benoni Pterodactyl A40
- Pterodactyl Defense: Fianchetto, Queen Pteranodon A40
- Pterodactyl Defense: Fianchetto, Queen Pterodactyl A40
- Pterodactyl Defense: Queen Pterodactyl, Quiet Line A40
- Pterodactyl Defense A42
- Pterodactyl Defense: Central, Bogolubovia A42
- Pterodactyl Defense: Austrian, Austriadactylus Western B06
- Pterodactyl Defense: Austrian, Grand Prix Pterodactyl B06
- Pterodactyl Defense: Austrian, Pteranodon B06
- Pterodactyl Defense: Central, Anhanguera B06
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.