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Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack

4.6K games from Lichess · Updated January 2026

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White Expected Score55.5%Range (90% confident): 54.3% – 56.7%Based on 4.6K games
0%55.5%100%
Range (90% confident): 54.3% – 56.7%
Outcome Distribution
52.9%5.2%41.9%
Win
Draw
Loss
4.Nge2
Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack
Analyzen=4.6K
Avg Length34 moves
Sharpness95%
Draw Rate5.2%

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack expected score for White?

Snapshot

At all ratings, the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 55.5% expected score for White (we're 90% confident it's between 54.3% and 56.7%), based on 4.6K Lichess games.

Extra Analysis

Deep-dive datasets for this opening

Traps & Chaos

Complexity: 90.0 · Trap factor: +10.4 · n=4.6K

White Win% by Rating

Stable across ratings (~55%)

0
1000
1200
1400
1600
1800
2000
2200
2500+

  • 0-999: 54.8% win rate (140 games)
  • 1000-1199: 49.8% win rate (158 games)
  • 1200-1399: 49.2% win rate (211 games)
  • 1400-1599: 50.3% win rate (391 games)
  • 1600-1799: 50.9% win rate (530 games)
  • 1800-1999: 52.8% win rate (1,071 games)
  • 2000-2199: 54.9% win rate (952 games)
  • 2200-2499: 54.2% win rate (850 games)
  • 2500+: 53.0% win rate (294 games)

White Win% by Time Control

Best in Rapid (57%), worst in UltraBullet (33%)

UltraBullet
Bullet
Blitz
Rapid
Classical

  • UltraBullet: 33.3% win rate (18 games)
  • Bullet: 52.0% win rate (2,022 games)
  • Blitz: 52.8% win rate (1,978 games)
  • Rapid: 57.0% win rate (563 games)
  • Classical: 54.3% win rate (16 games)

White% 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: 38.9% expected score (21 games)
  • 0-999 rating, Blitz: 57.4% expected score (80 games)
  • 0-999 rating, Rapid: 62.4% expected score (39 games)
  • 1000-1199 rating, UltraBullet: 30.0% expected score (1 games)
  • 1000-1199 rating, Bullet: 50.0% expected score (34 games)
  • 1000-1199 rating, Blitz: 54.3% expected score (80 games)
  • 1000-1199 rating, Rapid: 51.2% expected score (43 games)
  • 1200-1399 rating, UltraBullet: 83.4% expected score (3 games)
  • 1200-1399 rating, Bullet: 45.8% expected score (57 games)
  • 1200-1399 rating, Blitz: 46.9% expected score (95 games)
  • 1200-1399 rating, Rapid: 58.6% expected score (51 games)
  • 1200-1399 rating, Classical: 57.7% expected score (5 games)
  • 1400-1599 rating, UltraBullet: 16.7% expected score (3 games)
  • 1400-1599 rating, Bullet: 50.7% expected score (142 games)
  • 1400-1599 rating, Blitz: 55.7% expected score (166 games)
  • 1400-1599 rating, Rapid: 49.4% expected score (77 games)
  • 1400-1599 rating, Classical: 38.9% expected score (3 games)
  • 1600-1799 rating, UltraBullet: 39.5% expected score (8 games)
  • 1600-1799 rating, Bullet: 48.9% expected score (217 games)
  • 1600-1799 rating, Blitz: 55.5% expected score (228 games)
  • 1600-1799 rating, Rapid: 57.8% expected score (75 games)
  • 1600-1799 rating, Classical: 50.0% expected score (2 games)
  • 1800-1999 rating, UltraBullet: 16.7% expected score (3 games)
  • 1800-1999 rating, Bullet: 56.0% expected score (383 games)
  • 1800-1999 rating, Blitz: 53.4% expected score (543 games)
  • 1800-1999 rating, Rapid: 61.6% expected score (137 games)
  • 1800-1999 rating, Classical: 65.4% expected score (5 games)
  • 2000-2199 rating, Bullet: 52.6% expected score (346 games)
  • 2000-2199 rating, Blitz: 60.3% expected score (513 games)
  • 2000-2199 rating, Rapid: 61.8% expected score (92 games)
  • 2000-2199 rating, Classical: 70.0% expected score (1 games)
  • 2200-2499 rating, Bullet: 57.0% expected score (540 games)
  • 2200-2499 rating, Blitz: 57.8% expected score (261 games)
  • 2200-2499 rating, Rapid: 70.8% expected score (49 games)
  • 2500+ rating, Bullet: 56.4% expected score (282 games)
  • 2500+ rating, Blitz: 50.0% expected score (12 games)

Related Openings

Parent
Blackmar-Diemer Gambit
48.0%
Variations (5)
Blackmar-Diemer Gambit: Blackmar Gambit
50.9%
Blackmar-Diemer Gambit: Diemer-Rosenberg Attack
47.8%
Blackmar-Diemer Gambit: Fritz Attack
46.2%
Blackmar-Diemer Gambit: Lemberger Countergambit
44.4%
Blackmar-Diemer Gambit: Lemberger Countergambit, Endgame Variation
45.9%
Analyze Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack PositionsGet move-by-move win rates with the TrueElo analyzer

Frequently Asked Questions

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack win rate?

The Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 52.9% (90% CI: 51.7%-54.1%) win rate for white, based on 4.6K rated games from Lichess.

At what rating does the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack perform best?

The Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack performs best at 2000-2199 Elo with a 54.9% win rate for white (952 games). Win rate tends to decline at higher ratings as opponents know the theory better.

Is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack better in blitz or rapid?

Rapid (57.0%) outperforms Bullet (52.0%) by 5.0%. Choose your time control wisely.

How sharp is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack?

The Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a sharpness score of 94.8 (decisive), meaning 94.8% of games end decisively. Average game length is 34 moves.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack win rate at 0-999 Elo?

At 0-999 Elo, the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 54.8% (90% CI: 47.9%-61.6%) win rate for white, based on 140 Lichess games. Average game length is 26 moves with a 2.5% draw rate.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack win rate at 1000-1199 Elo?

At 1000-1199 Elo, the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 49.8% (90% CI: 43.3%-56.3%) win rate for white, based on 158 Lichess games. Average game length is 29 moves with a 4.7% draw rate.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack win rate at 1200-1399 Elo?

At 1200-1399 Elo, the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 49.2% (90% CI: 43.6%-54.8%) win rate for white, based on 211 Lichess games. Average game length is 31 moves with a 2.6% draw rate.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack win rate at 1400-1599 Elo?

At 1400-1599 Elo, the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 50.3% (90% CI: 46.2%-54.5%) win rate for white, based on 391 Lichess games. Average game length is 31 moves with a 3.4% draw rate.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack win rate at 1600-1799 Elo?

At 1600-1799 Elo, the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 50.9% (90% CI: 47.3%-54.5%) win rate for white, based on 530 Lichess games. Average game length is 33 moves with a 3.9% draw rate.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack win rate at 1800-1999 Elo?

At 1800-1999 Elo, the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 52.8% (90% CI: 50.3%-55.3%) win rate for white, based on 1.1K Lichess games. Average game length is 34 moves with a 5.0% draw rate.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack win rate at 2000-2199 Elo?

At 2000-2199 Elo, the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 54.9% (90% CI: 52.2%-57.5%) win rate for white, based on 952 Lichess games. Average game length is 36 moves with a 5.6% draw rate.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack win rate at 2200-2499 Elo?

At 2200-2499 Elo, the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 54.2% (90% CI: 51.4%-57.0%) win rate for white, based on 850 Lichess games. Average game length is 38 moves with a 7.8% draw rate.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack win rate at 2500+ Elo?

At 2500+ Elo, the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 53.0% (90% CI: 48.2%-57.7%) win rate for white, based on 294 Lichess games. Average game length is 40 moves with a 6.3% draw rate.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack win rate in Bullet?

In Bullet games, the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 52.0% (90% CI: 50.2%-53.8%) win rate for white (2.0K Lichess games). Draw rate is 4.0%.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack win rate in Blitz?

In Blitz games, the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 52.8% (90% CI: 51.0%-54.7%) win rate for white (2.0K Lichess games). Draw rate is 6.5%.

What is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack win rate in Rapid?

In Rapid games, the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack has a 57.0% (90% CI: 53.5%-60.4%) win rate for white (563 Lichess games). Draw rate is 4.9%.

Is the Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack a good opening?

The Blackmar-Diemer Gambit: Lemberger Countergambit, Rasmussen Attack is statistically favors white with a 52.9% (90% CI: 51.7%-54.1%) 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.