Pterodactyl Defense: Sicilian, Benoni Gambit
1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. d5
The Pterodactyl Defense: Sicilian, Benoni Gambit is a chess opening classified as ECO B27, reached after 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. d5. It is a line of the Pterodactyl Defense. Black 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: +1.17 (Stockfish, depth 32; best line 5… d6 6. Nd2 a6 7. Nc4 Qc7 8. a4)
- ECO
- B27
- Moves
- 9 plies
- FEN
rnb1k1nr/pp1pppbp/6p1/q1pP4/4P3/2N2N2/PPP2PPP/R1BQKB1R b KQkq - 0 5- PGN
1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5 5. d5
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Master games
4 over-the-board games are classified under this line (White 25%, draw 25%, Black 50%). The strongest:
- FM Zaur Tekeyev (2386) – FM Vitaly Boiarintsev (2327) 1-0 · TCh-RUS HL 2019 · 2019-05-02
- CM Adithya A Chullikkad (2259) – IM Attila Jakab (2320) 1/2-1/2 · Vezerkepzo IM Easter 2023 · 2023-04-13
- Dieter Wallner (2082) – IM Danner, G. (2312) 0-1 · ch-AUT 2017 · 2017-08-12
- Adrian Gyerpal (1990) – Bela Seres (2212) 0-1 · V4 Stiavnica Open 2018 · 2018-07-08
Search all games of the Pterodactyl Defense: Sicilian, Benoni Gambit and its sub-variations
Comes from
Modern Defense: Pterodactyl Variation 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. Nc3 Qa5
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.