4.6K games from Lichess · Updated January 2026
At all ratings, the King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense has a 47.8% expected score for Black (we're 90% confident it's between 46.6% and 49.0%), based on 4.6K Lichess games.
Deep-dive datasets for this opening
Improves with rating: 41% → 46%
Best in Classical (51%), worst in Rapid (45%)
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, Brentano Defense has a 50.5% (90% CI: 49.3%-51.7%) win rate for white, based on 4.6K rated games from Lichess.
The King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense performs best at 2200-2499 Elo with a 61.2% win rate for white (308 games). Win rate tends to decline at higher ratings as opponents know the theory better.
Blitz (50.7%) outperforms Rapid (50.4%) by 0.3%. Choose your time control wisely.
The King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense has a sharpness score of 96.5 (very decisive), meaning 96.5% of games end decisively. Average game length is 29 moves.
At 1200-1399 Elo, the King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense has a 47.9% (90% CI: 40.8%-55.1%) win rate for white, based on 131 Lichess games. Average game length is 25 moves with a 1.9% draw rate.
At 1400-1599 Elo, the King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense has a 48.0% (90% CI: 44.0%-51.9%) win rate for white, based on 427 Lichess games. Average game length is 25 moves with a 2.5% draw rate.
At 1600-1799 Elo, the King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense has a 48.9% (90% CI: 46.4%-51.4%) win rate for white, based on 1.1K Lichess games. Average game length is 28 moves with a 2.8% draw rate.
At 1800-1999 Elo, the King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense has a 49.7% (90% CI: 47.6%-51.8%) win rate for white, based on 1.5K Lichess games. Average game length is 30 moves with a 3.5% draw rate.
At 2000-2199 Elo, the King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense has a 51.4% (90% CI: 48.9%-53.9%) win rate for white, based on 1.1K Lichess games. Average game length is 31 moves with a 4.6% draw rate.
At 2200-2499 Elo, the King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense has a 61.2% (90% CI: 56.6%-65.7%) win rate for white, based on 308 Lichess games. Average game length is 33 moves with a 5.0% draw rate.
In Bullet games, the King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense has a 50.3% (90% CI: 47.6%-53.0%) win rate for white (918 Lichess games). Draw rate is 2.0%.
In Blitz games, the King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense has a 50.7% (90% CI: 49.2%-52.2%) win rate for white (3.0K Lichess games). Draw rate is 3.6%.
In Rapid games, the King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense has a 50.4% (90% CI: 47.2%-53.6%) win rate for white (666 Lichess games). Draw rate is 5.0%.
The King's Gambit Accepted: Kieseritzky Gambit, Brentano Defense is statistically balanced with a 50.5% (90% CI: 49.3%-51.7%) 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.