1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Qa5
Chess openings · Pterodactyl Defense · B06
Pterodactyl Defense: Eastern, Rhamphorhynchus
2,421 rated games in September 2026 began with 1. e4 g6 2. d4 Bg7 3. Nc3 c5 4. dxc5 Qa5. White wins 50%, draws 4%, Black wins 46%.
Results by rating
| Lichess rating | Games | White winsDrawBlack wins |
|---|---|---|
| Under 1200 | 52 | 50%46% |
| 1200–1599 | 215 | 47%52% |
| 1600–1999 | 566 | 50%48% |
| 2000 and up | 1,588 | 50%45% |
| All ratings | 2,421 | 50%46% |
By time control
| Time control | Games | |
|---|---|---|
| Bullet | 1,526 | 49%47% |
| Blitz | 781 | 51%46% |
| Rapid | 112 | 61%38% |
| Classical | 2 | – |