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King's Gambit Accepted: Kieseritzky, Polerio Defense

3.8K games from Lichess · Updated January 2026

Playable
Black Expected Score50.4%Range (90% confident): 49.1% – 51.8%Based on 3.8K games
0%50.4%100%
Range (90% confident): 49.1% – 51.8%
Outcome Distribution
48.8%3.2%48.0%
Win
Draw
Loss
5...Be7
King's Gambit Accepted: Kieseritzky, Polerio Defense
Analyzen=3.8K
Avg Length26 moves
Sharpness97%
Draw Rate3.2%

What is the King's Gambit Accepted: Kieseritzky, Polerio Defense expected score for Black?

Snapshot

At all ratings, the King's Gambit Accepted: Kieseritzky, Polerio Defense has a 50.4% expected score for Black (we're 90% confident it's between 49.1% and 51.8%), based on 3.8K Lichess games.

Extra Analysis

Deep-dive datasets for this opening

Traps & Chaos

Complexity: 90.6 · Trap factor: -3.4 · n=3.8K

Black Win% by Rating

Improves with rating: 41% → 63%

0
1000
1200
1400
1600
1800
2000
2200
2500+

  • 0-999: 41.2% win rate (7 games)
  • 1000-1199: 58.2% win rate (44 games)
  • 1200-1399: 48.8% win rate (106 games)
  • 1400-1599: 49.5% win rate (335 games)
  • 1600-1799: 50.2% win rate (970 games)
  • 1800-1999: 49.5% win rate (1,322 games)
  • 2000-2199: 46.1% win rate (776 games)
  • 2200-2499: 43.6% win rate (206 games)
  • 2500+: 63.0% win rate (12 games)

Black Win% by Time Control

Best in Bullet (50%), worst in Classical (37%)

Bullet
Blitz
Rapid
Classical

  • Bullet: 50.0% win rate (840 games)
  • Blitz: 48.7% win rate (2,291 games)
  • Rapid: 48.2% win rate (620 games)
  • Classical: 36.8% win rate (27 games)

Black% by Rating × Time Control

Click any cell to filter. Green = above 50%, Red = below 50%.

RatingUBBulleBlitzRapidClass
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

  • 0-999 rating, Bullet: 50.0% expected score (4 games)
  • 0-999 rating, Blitz: 38.9% expected score (3 games)
  • 1000-1199 rating, Bullet: 60.9% expected score (26 games)
  • 1000-1199 rating, Blitz: 64.9% expected score (12 games)
  • 1000-1199 rating, Rapid: 42.4% expected score (5 games)
  • 1000-1199 rating, Classical: 30.0% expected score (1 games)
  • 1200-1399 rating, Bullet: 50.0% expected score (36 games)
  • 1200-1399 rating, Blitz: 47.4% expected score (56 games)
  • 1200-1399 rating, Rapid: 56.5% expected score (14 games)
  • 1400-1599 rating, Bullet: 53.2% expected score (110 games)
  • 1400-1599 rating, Blitz: 47.5% expected score (178 games)
  • 1400-1599 rating, Rapid: 57.2% expected score (40 games)
  • 1400-1599 rating, Classical: 44.2% expected score (7 games)
  • 1600-1799 rating, Bullet: 50.3% expected score (207 games)
  • 1600-1799 rating, Blitz: 52.3% expected score (621 games)
  • 1600-1799 rating, Rapid: 50.8% expected score (133 games)
  • 1600-1799 rating, Classical: 64.3% expected score (9 games)
  • 1800-1999 rating, Bullet: 50.0% expected score (235 games)
  • 1800-1999 rating, Blitz: 51.6% expected score (854 games)
  • 1800-1999 rating, Rapid: 51.8% expected score (226 games)
  • 1800-1999 rating, Classical: 26.5% expected score (7 games)
  • 2000-2199 rating, Bullet: 54.6% expected score (152 games)
  • 2000-2199 rating, Blitz: 47.7% expected score (451 games)
  • 2000-2199 rating, Rapid: 44.8% expected score (170 games)
  • 2000-2199 rating, Classical: 16.7% expected score (3 games)
  • 2200-2499 rating, Bullet: 41.0% expected score (65 games)
  • 2200-2499 rating, Blitz: 48.2% expected score (110 games)
  • 2200-2499 rating, Rapid: 48.5% expected score (31 games)
  • 2500+ rating, Bullet: 73.1% expected score (5 games)
  • 2500+ rating, Blitz: 63.4% expected score (6 games)
  • 2500+ rating, Rapid: 30.0% expected score (1 games)

Related Openings

Parent
King's Gambit Accepted
43.1%
Variations (5)
King's Gambit Accepted: MacLeod Defense
53.4%
King's Gambit Accepted: Fischer Defense
52.1%
King's Gambit Accepted: King's Knight's Gambit
55.3%
King's Gambit Accepted: Modern Defense
51.3%
King's Gambit Accepted: Schallopp Defense
53.3%
Analyze King's Gambit Accepted: Kieseritzky, Polerio Defense PositionsGet move-by-move win rates with the TrueElo analyzer

Frequently Asked Questions

What is the King's Gambit Accepted: Kieseritzky, Polerio Defense win rate?

The King's Gambit Accepted: Kieseritzky, Polerio Defense has a 48.0% (90% CI: 46.6%-49.3%) win rate for white, based on 3.8K rated games from Lichess.

At what rating does the King's Gambit Accepted: Kieseritzky, Polerio Defense perform best?

The King's Gambit Accepted: Kieseritzky, Polerio Defense performs best at 2000-2199 Elo with a 49.7% win rate for white (776 games). Win rate tends to decline at higher ratings as opponents know the theory better.

Is the King's Gambit Accepted: Kieseritzky, Polerio Defense better in blitz or rapid?

Blitz (47.7%) outperforms Bullet (47.7%) by 0.0%. Choose your time control wisely.

How sharp is the King's Gambit Accepted: Kieseritzky, Polerio Defense?

The King's Gambit Accepted: Kieseritzky, Polerio Defense has a sharpness score of 96.8 (very decisive), meaning 96.8% of games end decisively. Average game length is 26 moves.

What is the King's Gambit Accepted: Kieseritzky, Polerio Defense win rate at 1200-1399 Elo?

At 1200-1399 Elo, the King's Gambit Accepted: Kieseritzky, Polerio Defense has a 49.8% (90% CI: 41.9%-57.7%) win rate for white, based on 106 Lichess games. Average game length is 21 moves with a 1.4% draw rate.

What is the King's Gambit Accepted: Kieseritzky, Polerio Defense win rate at 1400-1599 Elo?

At 1400-1599 Elo, the King's Gambit Accepted: Kieseritzky, Polerio Defense has a 48.6% (90% CI: 44.1%-53.1%) win rate for white, based on 335 Lichess games. Average game length is 21 moves with a 1.9% draw rate.

What is the King's Gambit Accepted: Kieseritzky, Polerio Defense win rate at 1600-1799 Elo?

At 1600-1799 Elo, the King's Gambit Accepted: Kieseritzky, Polerio Defense has a 46.7% (90% CI: 44.1%-49.3%) win rate for white, based on 970 Lichess games. Average game length is 24 moves with a 3.1% draw rate.

What is the King's Gambit Accepted: Kieseritzky, Polerio Defense win rate at 1800-1999 Elo?

At 1800-1999 Elo, the King's Gambit Accepted: Kieseritzky, Polerio Defense has a 47.2% (90% CI: 44.9%-49.4%) win rate for white, based on 1.3K Lichess games. Average game length is 28 moves with a 3.4% draw rate.

What is the King's Gambit Accepted: Kieseritzky, Polerio Defense win rate at 2000-2199 Elo?

At 2000-2199 Elo, the King's Gambit Accepted: Kieseritzky, Polerio Defense has a 49.7% (90% CI: 46.8%-52.7%) win rate for white, based on 776 Lichess games. Average game length is 29 moves with a 4.2% draw rate.

What is the King's Gambit Accepted: Kieseritzky, Polerio Defense win rate at 2200-2499 Elo?

At 2200-2499 Elo, the King's Gambit Accepted: Kieseritzky, Polerio Defense has a 51.8% (90% CI: 46.1%-57.5%) win rate for white, based on 206 Lichess games. Average game length is 31 moves with a 4.6% draw rate.

What is the King's Gambit Accepted: Kieseritzky, Polerio Defense win rate in Bullet?

In Bullet games, the King's Gambit Accepted: Kieseritzky, Polerio Defense has a 47.7% (90% CI: 44.9%-50.5%) win rate for white (840 Lichess games). Draw rate is 2.3%.

What is the King's Gambit Accepted: Kieseritzky, Polerio Defense win rate in Blitz?

In Blitz games, the King's Gambit Accepted: Kieseritzky, Polerio Defense has a 47.7% (90% CI: 46.0%-49.4%) win rate for white (2.3K Lichess games). Draw rate is 3.6%.

What is the King's Gambit Accepted: Kieseritzky, Polerio Defense win rate in Rapid?

In Rapid games, the King's Gambit Accepted: Kieseritzky, Polerio Defense has a 48.7% (90% CI: 45.4%-52.0%) win rate for white (620 Lichess games). Draw rate is 3.1%.

Is the King's Gambit Accepted: Kieseritzky, Polerio Defense a good opening?

The King's Gambit Accepted: Kieseritzky, Polerio Defense is statistically balanced with a 48.0% (90% CI: 46.6%-49.3%) win rate across all ratings. It performs best at 2000-2199 Elo. Your results depend on your rating, time control, and how well you know the typical plans.