1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 c6
Chess openings · Blackmar-Diemer Gambit Declined · D00
Blackmar-Diemer Gambit Declined: O'Kelly Defense
12,643 rated games in September 2026 began with 1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3 c6. White wins 53%, draws 3%, Black wins 44%.
Results by rating
| Lichess rating | Games | White winsDrawBlack wins |
|---|---|---|
| Under 1200 | 588 | 54%42% |
| 1200–1599 | 1,821 | 56%42% |
| 1600–1999 | 4,853 | 53%43% |
| 2000 and up | 5,381 | 52%45% |
| All ratings | 12,643 | 53%44% |
By time control
| Time control | Games | |
|---|---|---|
| Bullet | 6,947 | 53%44% |
| Blitz | 4,619 | 53%43% |
| Rapid | 1,050 | 53%43% |
| Classical | 27 | – |