7.0K games from Lichess · Updated January 2026
At all ratings, the King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense has a 55.4% expected score for Black (we're 90% confident it's between 54.4% and 56.4%), based on 7.0K Lichess games.
Deep-dive datasets for this opening
Declines with rating: 59% → 42%
Best in Classical (57%), worst in Bullet (51%)
Click any cell to filter. Green = above 50%, Red = below 50%.
| Rating | UB | Bulle | Blitz | Rapid | Class |
|---|---|---|---|---|---|
| 0-999 | — | — | |||
| 1000-1199 | — | — | |||
| 1200-1399 | — | ||||
| 1400-1599 | — | ||||
| 1600-1799 | — | ||||
| 1800-1999 | — | ||||
| 2000-2199 | — | ||||
| 2200-2499 | — | ||||
| 2500+ | — |
Expected score matrix by rating bracket and time control
The King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense has a 42.6% (90% CI: 41.6%-43.6%) win rate for white, based on 7.0K rated games from Lichess.
The King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense performs best at 2200-2499 Elo with a 48.0% win rate for white (310 games). Win rate tends to decline at higher ratings as opponents know the theory better.
Bullet (46.0%) outperforms Classical (39.1%) by 6.9%. Choose your time control wisely.
The King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense has a sharpness score of 96.0 (very decisive), meaning 96.0% of games end decisively. Average game length is 33 moves.
At 1000-1199 Elo, the King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense has a 43.3% (90% CI: 37.4%-49.4%) win rate for white, based on 182 Lichess games. Average game length is 26 moves with a 1.9% draw rate.
At 1200-1399 Elo, the King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense has a 41.3% (90% CI: 37.4%-45.4%) win rate for white, based on 406 Lichess games. Average game length is 28 moves with a 3.1% draw rate.
At 1400-1599 Elo, the King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense has a 43.1% (90% CI: 40.5%-45.8%) win rate for white, based on 955 Lichess games. Average game length is 30 moves with a 3.7% draw rate.
At 1600-1799 Elo, the King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense has a 43.1% (90% CI: 41.3%-45.0%) win rate for white, based on 1.9K Lichess games. Average game length is 32 moves with a 3.6% draw rate.
At 1800-1999 Elo, the King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense has a 41.4% (90% CI: 39.6%-43.2%) win rate for white, based on 2.0K Lichess games. Average game length is 34 moves with a 4.2% draw rate.
At 2000-2199 Elo, the King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense has a 41.8% (90% CI: 39.4%-44.2%) win rate for white, based on 1.1K Lichess games. Average game length is 36 moves with a 5.3% draw rate.
At 2200-2499 Elo, the King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense has a 48.0% (90% CI: 43.4%-52.7%) win rate for white, based on 310 Lichess games. Average game length is 38 moves with a 4.3% draw rate.
In Bullet games, the King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense has a 46.0% (90% CI: 43.6%-48.4%) win rate for white (1.2K Lichess games). Draw rate is 2.9%.
In Blitz games, the King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense has a 42.8% (90% CI: 41.6%-44.1%) win rate for white (4.1K Lichess games). Draw rate is 3.8%.
In Rapid games, the King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense has a 39.7% (90% CI: 37.7%-41.7%) win rate for white (1.6K Lichess games). Draw rate is 5.2%.
The King's Gambit Accepted: Kieseritzky Gambit, Rosenthal Defense is slightly favors black with a 42.6% (90% CI: 41.6%-43.6%) win rate across all ratings. It performs best at 2200-2499 Elo. Your results depend on your rating, time control, and how well you know the typical plans.