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Blackmar-Diemer Gambit Accepted: Ziegler Defense

220K games from Lichess · Updated January 2026

Tough Sell
Black Expected Score43.2%Range (90% confident): 43.1% – 43.4%Based on 220K games
0%43.2%100%
Range (90% confident): 43.1% – 43.4%
Outcome Distribution
41.5%3.3%55.2%
Win
Draw
Loss
5...c6
Blackmar-Diemer Gambit Accepted: Ziegler Defense
Analyzen=220K
Avg Length30 moves
Sharpness97%
Draw Rate3.3%

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense expected score for Black?

Snapshot

At all ratings, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 43.2% expected score for Black (we're 90% confident it's between 43.1% and 43.4%), based on 220K Lichess games.

Extra Analysis

Deep-dive datasets for this opening

Time-Control Swing

Max swing: 11.5% · UltraBullet best · Classical worst

Black Win% by Rating

Declines with rating: 43% → 40%

0
1000
1200
1400
1600
1800
2000
2200
2500+

  • 0-999: 43.0% win rate (1,145 games)
  • 1000-1199: 43.6% win rate (3,603 games)
  • 1200-1399: 41.7% win rate (9,633 games)
  • 1400-1599: 41.3% win rate (21,151 games)
  • 1600-1799: 41.7% win rate (38,745 games)
  • 1800-1999: 41.8% win rate (61,924 games)
  • 2000-2199: 41.6% win rate (52,919 games)
  • 2200-2499: 40.8% win rate (26,754 games)
  • 2500+: 39.6% win rate (3,659 games)

Black Win% by Time Control

Best in Classical (46%), worst in UltraBullet (38%)

UltraBullet
Bullet
Blitz
Rapid
Classical

  • UltraBullet: 38.4% win rate (281 games)
  • Bullet: 40.3% win rate (84,873 games)
  • Blitz: 42.1% win rate (107,908 games)
  • Rapid: 43.0% win rate (25,571 games)
  • Classical: 46.4% win rate (900 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: 44.5% expected score (545 games)
  • 0-999 rating, Blitz: 43.0% expected score (493 games)
  • 0-999 rating, Rapid: 44.9% expected score (107 games)
  • 1000-1199 rating, UltraBullet: 70.0% expected score (1 games)
  • 1000-1199 rating, Bullet: 47.0% expected score (1,519 games)
  • 1000-1199 rating, Blitz: 43.9% expected score (1,591 games)
  • 1000-1199 rating, Rapid: 42.4% expected score (489 games)
  • 1000-1199 rating, Classical: 38.9% expected score (3 games)
  • 1200-1399 rating, UltraBullet: 23.9% expected score (10 games)
  • 1200-1399 rating, Bullet: 41.8% expected score (3,695 games)
  • 1200-1399 rating, Blitz: 42.8% expected score (4,598 games)
  • 1200-1399 rating, Rapid: 45.3% expected score (1,318 games)
  • 1200-1399 rating, Classical: 64.9% expected score (12 games)
  • 1400-1599 rating, UltraBullet: 41.4% expected score (68 games)
  • 1400-1599 rating, Bullet: 41.6% expected score (6,307 games)
  • 1400-1599 rating, Blitz: 43.0% expected score (11,518 games)
  • 1400-1599 rating, Rapid: 42.9% expected score (3,182 games)
  • 1400-1599 rating, Classical: 52.6% expected score (76 games)
  • 1600-1799 rating, UltraBullet: 37.8% expected score (113 games)
  • 1600-1799 rating, Bullet: 41.4% expected score (11,610 games)
  • 1600-1799 rating, Blitz: 43.9% expected score (20,353 games)
  • 1600-1799 rating, Rapid: 44.5% expected score (6,430 games)
  • 1600-1799 rating, Classical: 45.8% expected score (239 games)
  • 1800-1999 rating, UltraBullet: 46.1% expected score (24 games)
  • 1800-1999 rating, Bullet: 40.6% expected score (18,798 games)
  • 1800-1999 rating, Blitz: 44.3% expected score (34,616 games)
  • 1800-1999 rating, Rapid: 45.7% expected score (8,106 games)
  • 1800-1999 rating, Classical: 50.3% expected score (380 games)
  • 2000-2199 rating, UltraBullet: 39.9% expected score (33 games)
  • 2000-2199 rating, Bullet: 41.9% expected score (21,558 games)
  • 2000-2199 rating, Blitz: 44.3% expected score (26,303 games)
  • 2000-2199 rating, Rapid: 46.1% expected score (4,846 games)
  • 2000-2199 rating, Classical: 48.1% expected score (179 games)
  • 2200-2499 rating, UltraBullet: 40.8% expected score (31 games)
  • 2200-2499 rating, Bullet: 41.9% expected score (17,578 games)
  • 2200-2499 rating, Blitz: 45.0% expected score (8,051 games)
  • 2200-2499 rating, Rapid: 42.7% expected score (1,083 games)
  • 2200-2499 rating, Classical: 46.0% expected score (11 games)
  • 2500+ rating, UltraBullet: 30.0% expected score (1 games)
  • 2500+ rating, Bullet: 42.7% expected score (3,263 games)
  • 2500+ rating, Blitz: 38.9% expected score (385 games)
  • 2500+ rating, Rapid: 23.9% expected score (10 games)

Related Openings

Parent
Blackmar-Diemer Gambit Accepted
50.9%
Variations (5)
Blackmar-Diemer Gambit Accepted: Ryder Gambit
54.2%
Blackmar-Diemer Gambit Accepted: Teichmann Defense
53.2%
Blackmar-Diemer Gambit Accepted: Euwe Defense
58.8%
Blackmar-Diemer Gambit Accepted: Pietrowsky Defense
53.4%
Blackmar-Diemer Gambit Accepted: Gunderam Defense
46.8%
Analyze Blackmar-Diemer Gambit Accepted: Ziegler Defense PositionsGet move-by-move win rates with the TrueElo analyzer

Frequently Asked Questions

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate?

The Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 55.2% (90% CI: 55.0%-55.3%) win rate for white, based on 220K rated games from Lichess.

At what rating does the Blackmar-Diemer Gambit Accepted: Ziegler Defense perform best?

The Blackmar-Diemer Gambit Accepted: Ziegler Defense performs best at 1400-1599 Elo with a 56.3% win rate for white (21K games). Win rate tends to decline at higher ratings as opponents know the theory better.

Is the Blackmar-Diemer Gambit Accepted: Ziegler Defense better in blitz or rapid?

Bullet (57.1%) outperforms Classical (48.5%) by 8.6%. Choose your time control wisely.

How sharp is the Blackmar-Diemer Gambit Accepted: Ziegler Defense?

The Blackmar-Diemer Gambit Accepted: Ziegler Defense has a sharpness score of 96.7 (very decisive), meaning 96.7% of games end decisively. Average game length is 30 moves.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate at 0-999 Elo?

At 0-999 Elo, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 55.3% (90% CI: 52.9%-57.8%) win rate for white, based on 1.1K Lichess games. Average game length is 23 moves with a 1.6% draw rate.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate at 1000-1199 Elo?

At 1000-1199 Elo, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 53.6% (90% CI: 52.2%-55.0%) win rate for white, based on 3.6K Lichess games. Average game length is 26 moves with a 2.8% draw rate.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate at 1200-1399 Elo?

At 1200-1399 Elo, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 56.3% (90% CI: 55.4%-57.1%) win rate for white, based on 9.6K Lichess games. Average game length is 26 moves with a 2.1% draw rate.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate at 1400-1599 Elo?

At 1400-1599 Elo, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 56.3% (90% CI: 55.7%-56.8%) win rate for white, based on 21K Lichess games. Average game length is 27 moves with a 2.4% draw rate.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate at 1600-1799 Elo?

At 1600-1799 Elo, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 55.3% (90% CI: 54.9%-55.7%) win rate for white, based on 39K Lichess games. Average game length is 29 moves with a 3.0% draw rate.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate at 1800-1999 Elo?

At 1800-1999 Elo, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 55.1% (90% CI: 54.7%-55.4%) win rate for white, based on 62K Lichess games. Average game length is 31 moves with a 3.2% draw rate.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate at 2000-2199 Elo?

At 2000-2199 Elo, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 54.7% (90% CI: 54.3%-55.0%) win rate for white, based on 53K Lichess games. Average game length is 32 moves with a 3.8% draw rate.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate at 2200-2499 Elo?

At 2200-2499 Elo, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 55.1% (90% CI: 54.6%-55.6%) win rate for white, based on 27K Lichess games. Average game length is 33 moves with a 4.2% draw rate.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate at 2500+ Elo?

At 2500+ Elo, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 55.3% (90% CI: 53.9%-56.6%) win rate for white, based on 3.7K Lichess games. Average game length is 36 moves with a 5.1% draw rate.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate in UltraBullet?

In UltraBullet games, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 60.0% (90% CI: 55.2%-64.7%) win rate for white (281 Lichess games). Draw rate is 1.6%.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate in Bullet?

In Bullet games, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 57.1% (90% CI: 56.8%-57.4%) win rate for white (85K Lichess games). Draw rate is 2.6%.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate in Blitz?

In Blitz games, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 54.2% (90% CI: 53.9%-54.4%) win rate for white (108K Lichess games). Draw rate is 3.7%.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate in Rapid?

In Rapid games, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 53.2% (90% CI: 52.7%-53.7%) win rate for white (26K Lichess games). Draw rate is 3.8%.

What is the Blackmar-Diemer Gambit Accepted: Ziegler Defense win rate in Classical?

In Classical games, the Blackmar-Diemer Gambit Accepted: Ziegler Defense has a 48.5% (90% CI: 45.8%-51.3%) win rate for white (900 Lichess games). Draw rate is 5.0%.

Is the Blackmar-Diemer Gambit Accepted: Ziegler Defense a good opening?

The Blackmar-Diemer Gambit Accepted: Ziegler Defense is statistically favors white with a 55.2% (90% CI: 55.0%-55.3%) win rate across all ratings. It performs best at 1400-1599 Elo. Your results depend on your rating, time control, and how well you know the typical plans.