1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3
Chess openings · Pterodactyl Defense · B27
Pterodactyl Defense: Sicilian, Rhamphorhynchus
1,755 rated games in September 2026 began with 1. e4 c5 2. Nf3 g6 3. d4 Bg7 4. dxc5 Qa5+ 5. Nc3. White wins 48%, draws 4%, Black wins 49%.
Results by rating
| Lichess rating | Games | White winsDrawBlack wins |
|---|---|---|
| Under 1200 | 61 | 31%66% |
| 1200–1599 | 406 | 40%57% |
| 1600–1999 | 737 | 51%45% |
| 2000 and up | 551 | 50%46% |
| All ratings | 1,755 | 48%49% |
By time control
| Time control | Games | |
|---|---|---|
| Bullet | 834 | 49%48% |
| Blitz | 751 | 47%49% |
| Rapid | 167 | 42%52% |
| Classical | 3 | – |