Pterodactyl Defense: Austrian, Austriadactylus Western
1. e4 g6 2. d4 Bg7 3. f4 c5 4. Nf3 Qa5+
The Pterodactyl Defense: Austrian, Austriadactylus Western is a chess opening classified as ECO B06, reached after 1. e4 g6 2. d4 Bg7 3. f4 c5 4. Nf3 Qa5+. It is a line of the Pterodactyl Defense. White is to move.
In 12.6 million rated Lichess games (blitz and slower), this position was reached 1 times by this move order. White won 100%, 0% were drawn and Black won 0%. The most popular continuation is 5. c3 (100% of games).
Engine evaluation: +0.71 (Stockfish, depth 29; best line 5. Bd2 Qb6 6. dxc5 Qxc5 7. Nc3 d6)
- ECO
- B06
- Moves
- 8 plies
- FEN
rnb1k1nr/pp1pppbp/6p1/q1p5/3PPP2/5N2/PPP3PP/RNBQKB1R w KQkq - 2 5- PGN
1. e4 g6 2. d4 Bg7 3. f4 c5 4. Nf3 Qa5+
Analyse with Stockfish · Board image (SVG) · Open on Lichess
Results by rating
| Average rating | Games | White / draw / Black |
|---|---|---|
| 1500-1999 | 1 | |
| All | 1 |
Most played moves
| Move | Games | White / draw / Black |
|---|---|---|
| 5. c3 | 1 (100%) |
Highest-rated Lichess games
- boban51 (1696) – Mohammed_6767 (1751) 1-0 · 2026-09-05 · 300 + 3s
Comes from
Modern Defense: Three Pawns Attack 1. e4 g6 2. d4 Bg7 3. f4
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, Grand Prix Pterodactyl B06
- Pterodactyl Defense: Austrian, Pteranodon B06
- Pterodactyl Defense: Central, Anhanguera B06
- Pterodactyl Defense: Central, Benoni Quetzalcoatlus 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.