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Semi-Slav Defense Accepted

96K games from Lichess · Updated January 2026

Playable
Black Expected Score48.5%Range (90% confident): 48.3% – 48.8%Based on 96K games
0%48.5%100%
Range (90% confident): 48.3% – 48.8%
Outcome Distribution
46.3%4.3%49.4%
Win
Draw
Loss
5...dxc4
Semi-Slav Defense Accepted
Analyzen=96K
Avg Length35 moves
Sharpness96%
Draw Rate4.3%

What is the Semi-Slav Defense Accepted expected score for Black?

Snapshot

At all ratings, the Semi-Slav Defense Accepted has a 48.5% expected score for Black (we're 90% confident it's between 48.3% and 48.8%), based on 96K Lichess games.

Extra Analysis

Deep-dive datasets for this opening

Time-Control Swing

Max swing: 13.6% · UltraBullet best · Classical worst

Black Win% by Rating

Declines with rating: 51% → 43%

0
1000
1200
1400
1600
1800
2000
2200
2500+

  • 0-999: 50.6% win rate (211 games)
  • 1000-1199: 41.6% win rate (867 games)
  • 1200-1399: 43.6% win rate (2,127 games)
  • 1400-1599: 43.4% win rate (5,429 games)
  • 1600-1799: 45.9% win rate (12,133 games)
  • 1800-1999: 46.8% win rate (23,569 games)
  • 2000-2199: 48.0% win rate (29,165 games)
  • 2200-2499: 45.3% win rate (20,184 games)
  • 2500+: 42.8% win rate (2,767 games)

Black Win% by Time Control

Best in Rapid (48%), worst in UltraBullet (42%)

UltraBullet
Bullet
Blitz
Rapid
Classical

  • UltraBullet: 42.0% win rate (669 games)
  • Bullet: 45.4% win rate (46,626 games)
  • Blitz: 47.2% win rate (43,993 games)
  • Rapid: 47.7% win rate (4,959 games)
  • Classical: 47.2% win rate (205 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, UltraBullet: 70.0% expected score (1 games)
  • 0-999 rating, Bullet: 49.0% expected score (96 games)
  • 0-999 rating, Blitz: 52.1% expected score (97 games)
  • 0-999 rating, Rapid: 58.2% expected score (17 games)
  • 1000-1199 rating, UltraBullet: 78.6% expected score (2 games)
  • 1000-1199 rating, Bullet: 42.3% expected score (496 games)
  • 1000-1199 rating, Blitz: 43.2% expected score (267 games)
  • 1000-1199 rating, Rapid: 45.2% expected score (102 games)
  • 1200-1399 rating, UltraBullet: 50.0% expected score (52 games)
  • 1200-1399 rating, Bullet: 45.4% expected score (1,203 games)
  • 1200-1399 rating, Blitz: 44.6% expected score (650 games)
  • 1200-1399 rating, Rapid: 41.7% expected score (214 games)
  • 1200-1399 rating, Classical: 60.6% expected score (8 games)
  • 1400-1599 rating, UltraBullet: 44.0% expected score (149 games)
  • 1400-1599 rating, Bullet: 43.9% expected score (3,035 games)
  • 1400-1599 rating, Blitz: 45.9% expected score (1,896 games)
  • 1400-1599 rating, Rapid: 51.8% expected score (338 games)
  • 1400-1599 rating, Classical: 42.0% expected score (11 games)
  • 1600-1799 rating, UltraBullet: 40.0% expected score (288 games)
  • 1600-1799 rating, Bullet: 47.1% expected score (6,308 games)
  • 1600-1799 rating, Blitz: 48.9% expected score (4,841 games)
  • 1600-1799 rating, Rapid: 48.7% expected score (649 games)
  • 1600-1799 rating, Classical: 43.8% expected score (47 games)
  • 1800-1999 rating, UltraBullet: 40.9% expected score (146 games)
  • 1800-1999 rating, Bullet: 47.2% expected score (10,730 games)
  • 1800-1999 rating, Blitz: 50.1% expected score (11,339 games)
  • 1800-1999 rating, Rapid: 50.7% expected score (1,269 games)
  • 1800-1999 rating, Classical: 54.1% expected score (85 games)
  • 2000-2199 rating, UltraBullet: 56.8% expected score (28 games)
  • 2000-2199 rating, Bullet: 48.6% expected score (11,744 games)
  • 2000-2199 rating, Blitz: 51.2% expected score (15,725 games)
  • 2000-2199 rating, Rapid: 53.1% expected score (1,622 games)
  • 2000-2199 rating, Classical: 60.6% expected score (46 games)
  • 2200-2499 rating, UltraBullet: 72.3% expected score (3 games)
  • 2200-2499 rating, Bullet: 46.8% expected score (10,826 games)
  • 2200-2499 rating, Blitz: 49.3% expected score (8,616 games)
  • 2200-2499 rating, Rapid: 48.7% expected score (731 games)
  • 2200-2499 rating, Classical: 44.8% expected score (8 games)
  • 2500+ rating, Bullet: 46.6% expected score (2,188 games)
  • 2500+ rating, Blitz: 42.2% expected score (562 games)
  • 2500+ rating, Rapid: 39.2% expected score (17 games)
Analyze Semi-Slav Defense Accepted PositionsGet move-by-move win rates with the TrueElo analyzer

Frequently Asked Questions

What is the Semi-Slav Defense Accepted win rate?

The Semi-Slav Defense Accepted has a 49.4% (90% CI: 49.1%-49.6%) win rate for white, based on 96K rated games from Lichess.

At what rating does the Semi-Slav Defense Accepted perform best?

The Semi-Slav Defense Accepted performs best at 1000-1199 Elo with a 55.7% win rate for white (867 games). Win rate tends to decline at higher ratings as opponents know the theory better.

Is the Semi-Slav Defense Accepted better in blitz or rapid?

UltraBullet (56.0%) outperforms Classical (42.4%) by 13.6%. Choose your time control wisely.

How sharp is the Semi-Slav Defense Accepted?

The Semi-Slav Defense Accepted has a sharpness score of 95.7 (very decisive), meaning 95.7% of games end decisively. Average game length is 35 moves.

What is the Semi-Slav Defense Accepted win rate at 0-999 Elo?

At 0-999 Elo, the Semi-Slav Defense Accepted has a 47.8% (90% CI: 42.2%-53.4%) win rate for white, based on 211 Lichess games. Average game length is 27 moves with a 1.6% draw rate.

What is the Semi-Slav Defense Accepted win rate at 1000-1199 Elo?

At 1000-1199 Elo, the Semi-Slav Defense Accepted has a 55.7% (90% CI: 52.9%-58.4%) win rate for white, based on 867 Lichess games. Average game length is 28 moves with a 2.7% draw rate.

What is the Semi-Slav Defense Accepted win rate at 1200-1399 Elo?

At 1200-1399 Elo, the Semi-Slav Defense Accepted has a 53.7% (90% CI: 51.9%-55.5%) win rate for white, based on 2.1K Lichess games. Average game length is 30 moves with a 2.7% draw rate.

What is the Semi-Slav Defense Accepted win rate at 1400-1599 Elo?

At 1400-1599 Elo, the Semi-Slav Defense Accepted has a 53.3% (90% CI: 52.2%-54.4%) win rate for white, based on 5.4K Lichess games. Average game length is 31 moves with a 3.3% draw rate.

What is the Semi-Slav Defense Accepted win rate at 1600-1799 Elo?

At 1600-1799 Elo, the Semi-Slav Defense Accepted has a 50.5% (90% CI: 49.7%-51.2%) win rate for white, based on 12K Lichess games. Average game length is 33 moves with a 3.6% draw rate.

What is the Semi-Slav Defense Accepted win rate at 1800-1999 Elo?

At 1800-1999 Elo, the Semi-Slav Defense Accepted has a 49.3% (90% CI: 48.7%-49.8%) win rate for white, based on 24K Lichess games. Average game length is 34 moves with a 4.0% draw rate.

What is the Semi-Slav Defense Accepted win rate at 2000-2199 Elo?

At 2000-2199 Elo, the Semi-Slav Defense Accepted has a 47.4% (90% CI: 46.9%-47.9%) win rate for white, based on 29K Lichess games. Average game length is 35 moves with a 4.6% draw rate.

What is the Semi-Slav Defense Accepted win rate at 2200-2499 Elo?

At 2200-2499 Elo, the Semi-Slav Defense Accepted has a 49.5% (90% CI: 48.9%-50.1%) win rate for white, based on 20K Lichess games. Average game length is 37 moves with a 5.1% draw rate.

What is the Semi-Slav Defense Accepted win rate at 2500+ Elo?

At 2500+ Elo, the Semi-Slav Defense Accepted has a 51.6% (90% CI: 50.0%-53.1%) win rate for white, based on 2.8K Lichess games. Average game length is 38 moves with a 5.7% draw rate.

What is the Semi-Slav Defense Accepted win rate in UltraBullet?

In UltraBullet games, the Semi-Slav Defense Accepted has a 56.0% (90% CI: 52.8%-59.1%) win rate for white (669 Lichess games). Draw rate is 2.0%.

What is the Semi-Slav Defense Accepted win rate in Bullet?

In Bullet games, the Semi-Slav Defense Accepted has a 51.2% (90% CI: 50.8%-51.6%) win rate for white (47K Lichess games). Draw rate is 3.4%.

What is the Semi-Slav Defense Accepted win rate in Blitz?

In Blitz games, the Semi-Slav Defense Accepted has a 47.6% (90% CI: 47.2%-48.0%) win rate for white (44K Lichess games). Draw rate is 5.2%.

What is the Semi-Slav Defense Accepted win rate in Rapid?

In Rapid games, the Semi-Slav Defense Accepted has a 46.8% (90% CI: 45.6%-47.9%) win rate for white (5.0K Lichess games). Draw rate is 5.6%.

What is the Semi-Slav Defense Accepted win rate in Classical?

In Classical games, the Semi-Slav Defense Accepted has a 42.4% (90% CI: 36.8%-48.1%) win rate for white (205 Lichess games). Draw rate is 10.4%.

Is the Semi-Slav Defense Accepted a good opening?

The Semi-Slav Defense Accepted is statistically balanced with a 49.4% (90% CI: 49.1%-49.6%) win rate across all ratings. It performs best at 1000-1199 Elo. Your results depend on your rating, time control, and how well you know the typical plans.