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Semi-Slav Defense: Accelerated Meran Variation

74K games from Lichess · Updated January 2026

Tough Sell
Black Expected Score46.9%Range (90% confident): 46.6% – 47.2%Based on 74K games
0%46.9%100%
Range (90% confident): 46.6% – 47.2%
Outcome Distribution
44.2%5.3%50.4%
Win
Draw
Loss
5...a6
Semi-Slav Defense: Accelerated Meran Variation
Analyzen=74K
Avg Length37 moves
Sharpness95%
Draw Rate5.3%

What is the Semi-Slav Defense: Accelerated Meran Variation expected score for Black?

Snapshot

At all ratings, the Semi-Slav Defense: Accelerated Meran Variation has a 46.9% expected score for Black (we're 90% confident it's between 46.6% and 47.2%), based on 74K Lichess games.

Black Win% by Rating

Declines with rating: 45% → 36%

0
1000
1200
1400
1600
1800
2000
2200
2500+

  • 0-999: 45.4% win rate (431 games)
  • 1000-1199: 47.7% win rate (1,597 games)
  • 1200-1399: 43.9% win rate (4,266 games)
  • 1400-1599: 45.5% win rate (8,882 games)
  • 1600-1799: 45.6% win rate (14,642 games)
  • 1800-1999: 44.4% win rate (18,501 games)
  • 2000-2199: 43.7% win rate (13,604 games)
  • 2200-2499: 43.3% win rate (9,693 games)
  • 2500+: 36.2% win rate (2,823 games)

Black Win% by Time Control

Best in Bullet (45%), worst in UltraBullet (23%)

UltraBullet
Bullet
Blitz
Rapid
Classical

  • UltraBullet: 22.6% win rate (14 games)
  • Bullet: 45.0% win rate (23,280 games)
  • Blitz: 44.1% win rate (41,878 games)
  • Rapid: 43.0% win rate (8,836 games)
  • Classical: 38.5% win rate (431 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: 46.3% expected score (200 games)
  • 0-999 rating, Blitz: 47.3% expected score (197 games)
  • 0-999 rating, Rapid: 47.2% expected score (34 games)
  • 1000-1199 rating, Bullet: 48.2% expected score (597 games)
  • 1000-1199 rating, Blitz: 49.9% expected score (844 games)
  • 1000-1199 rating, Rapid: 47.2% expected score (156 games)
  • 1200-1399 rating, Bullet: 46.5% expected score (1,560 games)
  • 1200-1399 rating, Blitz: 43.9% expected score (2,240 games)
  • 1200-1399 rating, Rapid: 50.2% expected score (453 games)
  • 1200-1399 rating, Classical: 32.8% expected score (13 games)
  • 1400-1599 rating, UltraBullet: 50.0% expected score (2 games)
  • 1400-1599 rating, Bullet: 48.7% expected score (2,795 games)
  • 1400-1599 rating, Blitz: 46.6% expected score (5,054 games)
  • 1400-1599 rating, Rapid: 47.6% expected score (984 games)
  • 1400-1599 rating, Classical: 39.7% expected score (47 games)
  • 1600-1799 rating, UltraBullet: 29.0% expected score (8 games)
  • 1600-1799 rating, Bullet: 46.6% expected score (4,060 games)
  • 1600-1799 rating, Blitz: 48.0% expected score (8,411 games)
  • 1600-1799 rating, Rapid: 49.3% expected score (2,056 games)
  • 1600-1799 rating, Classical: 54.2% expected score (107 games)
  • 1800-1999 rating, UltraBullet: 16.7% expected score (3 games)
  • 1800-1999 rating, Bullet: 47.2% expected score (5,195 games)
  • 1800-1999 rating, Blitz: 47.3% expected score (10,221 games)
  • 1800-1999 rating, Rapid: 45.1% expected score (2,928 games)
  • 1800-1999 rating, Classical: 43.2% expected score (154 games)
  • 2000-2199 rating, Bullet: 46.5% expected score (4,123 games)
  • 2000-2199 rating, Blitz: 47.3% expected score (7,767 games)
  • 2000-2199 rating, Rapid: 44.2% expected score (1,646 games)
  • 2000-2199 rating, Classical: 37.1% expected score (68 games)
  • 2200-2499 rating, UltraBullet: 30.0% expected score (1 games)
  • 2200-2499 rating, Bullet: 46.9% expected score (3,330 games)
  • 2200-2499 rating, Blitz: 47.0% expected score (5,853 games)
  • 2200-2499 rating, Rapid: 43.2% expected score (478 games)
  • 2200-2499 rating, Classical: 39.3% expected score (31 games)
  • 2500+ rating, Bullet: 46.1% expected score (1,420 games)
  • 2500+ rating, Blitz: 43.1% expected score (1,291 games)
  • 2500+ rating, Rapid: 50.5% expected score (101 games)
  • 2500+ rating, Classical: 34.0% expected score (11 games)

Related Openings

Parent
Semi-Slav Defense
51.5%
Variations (5)
Semi-Slav Defense: Accelerated Move Order
50.8%
Semi-Slav Defense: Main Line
51.8%
Semi-Slav Defense: Marshall Gambit
53.5%
Semi-Slav Defense: Noteboom Variation
49.8%
Semi-Slav Defense: Normal Variation
48.8%
Analyze Semi-Slav Defense: Accelerated Meran Variation PositionsGet move-by-move win rates with the TrueElo analyzer

Frequently Asked Questions

What is the Semi-Slav Defense: Accelerated Meran Variation win rate?

The Semi-Slav Defense: Accelerated Meran Variation has a 50.4% (90% CI: 50.1%-50.7%) win rate for white, based on 74K rated games from Lichess.

At what rating does the Semi-Slav Defense: Accelerated Meran Variation perform best?

The Semi-Slav Defense: Accelerated Meran Variation performs best at 1200-1399 Elo with a 53.0% win rate for white (4.3K games). Win rate tends to decline at higher ratings as opponents know the theory better.

Is the Semi-Slav Defense: Accelerated Meran Variation better in blitz or rapid?

Bullet (51.1%) outperforms Classical (51.4%) by -0.3%. Choose your time control wisely.

How sharp is the Semi-Slav Defense: Accelerated Meran Variation?

The Semi-Slav Defense: Accelerated Meran Variation has a sharpness score of 94.7 (decisive), meaning 94.7% of games end decisively. Average game length is 37 moves.

What is the Semi-Slav Defense: Accelerated Meran Variation win rate at 0-999 Elo?

At 0-999 Elo, the Semi-Slav Defense: Accelerated Meran Variation has a 51.9% (90% CI: 48.0%-55.9%) win rate for white, based on 431 Lichess games. Average game length is 27 moves with a 2.7% draw rate.

What is the Semi-Slav Defense: Accelerated Meran Variation win rate at 1000-1199 Elo?

At 1000-1199 Elo, the Semi-Slav Defense: Accelerated Meran Variation has a 49.8% (90% CI: 47.7%-51.8%) win rate for white, based on 1.6K Lichess games. Average game length is 31 moves with a 2.5% draw rate.

What is the Semi-Slav Defense: Accelerated Meran Variation win rate at 1200-1399 Elo?

At 1200-1399 Elo, the Semi-Slav Defense: Accelerated Meran Variation has a 53.0% (90% CI: 51.8%-54.3%) win rate for white, based on 4.3K Lichess games. Average game length is 33 moves with a 3.0% draw rate.

What is the Semi-Slav Defense: Accelerated Meran Variation win rate at 1400-1599 Elo?

At 1400-1599 Elo, the Semi-Slav Defense: Accelerated Meran Variation has a 50.9% (90% CI: 50.0%-51.7%) win rate for white, based on 8.9K Lichess games. Average game length is 35 moves with a 3.6% draw rate.

What is the Semi-Slav Defense: Accelerated Meran Variation win rate at 1600-1799 Elo?

At 1600-1799 Elo, the Semi-Slav Defense: Accelerated Meran Variation has a 50.0% (90% CI: 49.4%-50.7%) win rate for white, based on 15K Lichess games. Average game length is 36 moves with a 4.3% draw rate.

What is the Semi-Slav Defense: Accelerated Meran Variation win rate at 1800-1999 Elo?

At 1800-1999 Elo, the Semi-Slav Defense: Accelerated Meran Variation has a 50.7% (90% CI: 50.1%-51.3%) win rate for white, based on 19K Lichess games. Average game length is 38 moves with a 4.9% draw rate.

What is the Semi-Slav Defense: Accelerated Meran Variation win rate at 2000-2199 Elo?

At 2000-2199 Elo, the Semi-Slav Defense: Accelerated Meran Variation has a 50.5% (90% CI: 49.8%-51.2%) win rate for white, based on 14K Lichess games. Average game length is 39 moves with a 5.8% draw rate.

What is the Semi-Slav Defense: Accelerated Meran Variation win rate at 2200-2499 Elo?

At 2200-2499 Elo, the Semi-Slav Defense: Accelerated Meran Variation has a 49.8% (90% CI: 49.0%-50.7%) win rate for white, based on 9.7K Lichess games. Average game length is 40 moves with a 6.9% draw rate.

What is the Semi-Slav Defense: Accelerated Meran Variation win rate at 2500+ Elo?

At 2500+ Elo, the Semi-Slav Defense: Accelerated Meran Variation has a 46.5% (90% CI: 45.0%-48.0%) win rate for white, based on 2.8K Lichess games. Average game length is 46 moves with a 17.3% draw rate.

What is the Semi-Slav Defense: Accelerated Meran Variation win rate in Bullet?

In Bullet games, the Semi-Slav Defense: Accelerated Meran Variation has a 51.1% (90% CI: 50.5%-51.6%) win rate for white (23K Lichess games). Draw rate is 3.9%.

What is the Semi-Slav Defense: Accelerated Meran Variation win rate in Blitz?

In Blitz games, the Semi-Slav Defense: Accelerated Meran Variation has a 50.1% (90% CI: 49.7%-50.5%) win rate for white (42K Lichess games). Draw rate is 5.8%.

What is the Semi-Slav Defense: Accelerated Meran Variation win rate in Rapid?

In Rapid games, the Semi-Slav Defense: Accelerated Meran Variation has a 50.1% (90% CI: 49.3%-51.0%) win rate for white (8.8K Lichess games). Draw rate is 6.9%.

What is the Semi-Slav Defense: Accelerated Meran Variation win rate in Classical?

In Classical games, the Semi-Slav Defense: Accelerated Meran Variation has a 51.4% (90% CI: 47.5%-55.4%) win rate for white (431 Lichess games). Draw rate is 10.1%.

Is the Semi-Slav Defense: Accelerated Meran Variation a good opening?

The Semi-Slav Defense: Accelerated Meran Variation is statistically favors white with a 50.4% (90% CI: 50.1%-50.7%) win rate across all ratings. It performs best at 1200-1399 Elo. Your results depend on your rating, time control, and how well you know the typical plans.