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Blumenfeld Countergambit

4 variations · 37K games from Lichess · Updated January 2026

Key Finding

Blumenfeld Countergambit is balanced for Black at 49.0% expected score.

This opening produces roughly even results, with outcomes depending more on middlegame play than opening choice.

You play
Playable
Rating
Time
Black Expected Score0.0%Range (90% confident): 48.5% – 49.4%Aggregated from 4 variations
0%49.0%100%
Range (90% confident): 48.5% – 49.4%
ContextOverall · n=37K
Outcome Distribution
46.7%4.4%48.8%
Win
Draw
Loss
4...b5
Blumenfeld Countergambit
Variations4
Games (Context)37K
Avg Length34 moves
Draw Rate4.4%

What is the Blumenfeld Countergambit expected score for Black?

Snapshot

Overall, the Blumenfeld Countergambit family has a 49.0% expected score for Black (we're 90% confident it's between 48.5% and 49.4%), aggregated from 4 variations and 37K Lichess games.

Black Win% by Rating

Declines with rating: 48% → 43%

0
1000
1200
1400
1600
1800
2000
2200
2500+

  • 0-999: 48.4% win rate (14 games)
  • 1000-1199: 47.7% win rate (54 games)
  • 1200-1399: 46.5% win rate (206 games)
  • 1400-1599: 46.7% win rate (674 games)
  • 1600-1799: 51.3% win rate (1,698 games)
  • 1800-1999: 49.4% win rate (5,289 games)
  • 2000-2199: 48.8% win rate (11,500 games)
  • 2200-2499: 44.7% win rate (14,210 games)
  • 2500+: 42.5% win rate (3,727 games)

Black Win% by Time Control

Best in Bullet (48%), worst in UltraBullet (43%)

UltraBullet
Bullet
Blitz
Rapid
Classical

  • UltraBullet: 42.9% win rate (2 games)
  • Bullet: 48.2% win rate (9,591 games)
  • Blitz: 46.1% win rate (24,756 games)
  • Rapid: 46.5% win rate (2,843 games)
  • Classical: 48.2% win rate (180 games)

Rating vs Time Control Matrix

Click cells to filter · Black expected scores

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: 67.4% expected score (10 games)
  • 0-999 rating, Blitz: 38.9% expected score (3 games)
  • 0-999 rating, Rapid: 30.0% expected score (1 games)
  • 1000-1199 rating, Bullet: 38.9% expected score (21 games)
  • 1000-1199 rating, Blitz: 60.2% expected score (28 games)
  • 1000-1199 rating, Rapid: 42.4% expected score (5 games)
  • 1200-1399 rating, UltraBullet: 70.0% expected score (1 games)
  • 1200-1399 rating, Bullet: 46.0% expected score (73 games)
  • 1200-1399 rating, Blitz: 45.7% expected score (113 games)
  • 1200-1399 rating, Rapid: 55.7% expected score (16 games)
  • 1200-1399 rating, Classical: 61.2% expected score (3 games)
  • 1400-1599 rating, Bullet: 45.9% expected score (203 games)
  • 1400-1599 rating, Blitz: 47.3% expected score (367 games)
  • 1400-1599 rating, Rapid: 55.8% expected score (94 games)
  • 1400-1599 rating, Classical: 58.7% expected score (10 games)
  • 1600-1799 rating, Bullet: 53.5% expected score (537 games)
  • 1600-1799 rating, Blitz: 53.1% expected score (896 games)
  • 1600-1799 rating, Rapid: 48.2% expected score (240 games)
  • 1600-1799 rating, Classical: 61.3% expected score (25 games)
  • 1800-1999 rating, Bullet: 50.6% expected score (1,177 games)
  • 1800-1999 rating, Blitz: 51.7% expected score (3,512 games)
  • 1800-1999 rating, Rapid: 48.8% expected score (540 games)
  • 1800-1999 rating, Classical: 53.3% expected score (60 games)
  • 2000-2199 rating, Bullet: 51.2% expected score (2,176 games)
  • 2000-2199 rating, Blitz: 50.4% expected score (8,194 games)
  • 2000-2199 rating, Rapid: 53.1% expected score (1,070 games)
  • 2000-2199 rating, Classical: 55.7% expected score (60 games)
  • 2200-2499 rating, UltraBullet: 30.0% expected score (1 games)
  • 2200-2499 rating, Bullet: 50.0% expected score (3,581 games)
  • 2200-2499 rating, Blitz: 46.2% expected score (9,809 games)
  • 2200-2499 rating, Rapid: 45.0% expected score (798 games)
  • 2200-2499 rating, Classical: 45.6% expected score (21 games)
  • 2500+ rating, Bullet: 46.9% expected score (1,813 games)
  • 2500+ rating, Blitz: 44.7% expected score (1,834 games)
  • 2500+ rating, Rapid: 36.4% expected score (79 games)
  • 2500+ rating, Classical: 30.0% expected score (1 games)

Matrix view reveals how performance varies across rating brackets and time controls. Green indicates favorable, red indicates challenging contexts.

Variations (4)

1
Blumenfeld Countergambit23K games
49.9%
2
Blumenfeld Countergambit Accepted9.2K games
48.8%
3
Blumenfeld Countergambit: Spielmann Variation335 games
49.9%
Blumenfeld Countergambit: Duz-Khotimirsky Variation4.5K games
44.2%
Analyze Blumenfeld Countergambit PositionsGet move-by-move win rates with the TrueElo analyzer

Frequently Asked Questions

What is the Blumenfeld Countergambit win rate?

The Blumenfeld Countergambit family has a 48.8% (90% CI: 48.4%-49.3%) win rate for white, aggregated from 4 variations and 37K rated games from Lichess.

How many Blumenfeld Countergambit variations are there?

This analysis covers 4 Blumenfeld Countergambit variations with sufficient game data. Each variation has its own statistics page with detailed win rates by rating and time control.

At what rating does the Blumenfeld Countergambit perform best?

The Blumenfeld Countergambit family performs best at 2500+ Elo with a 51.6% win rate for white (3.7K games). Performance may vary by specific variation.

Is the Blumenfeld Countergambit better in blitz or rapid?

Blitz (49.1%) outperforms Classical (39.9%) by 9.2% across all Blumenfeld Countergambit variations.

How sharp is the Blumenfeld Countergambit?

Blumenfeld Countergambit games are 95.6% decisive (non-draws), with an average length of 34 moves. Sharpness varies by specific variation.

Is the Blumenfeld Countergambit a good opening family?

The Blumenfeld Countergambit family is statistically balanced overall with a 48.8% (90% CI: 48.4%-49.3%) aggregated win rate. However, win rates vary significantly between the 4 variations—explore individual lines to find the best fit for your style.