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Analyzer

Bird Opening: Mujannah

20K games from Lichess · Updated January 2026

Playable
White Expected Score48.7%Range (90% confident): 48.1% – 49.3%Based on 20K games
0%48.7%100%
Range (90% confident): 48.1% – 49.3%
Outcome Distribution
46.5%4.4%49.2%
Win
Draw
Loss
2.c4
Bird Opening: Mujannah
Analyzen=20K
Avg Length34 moves
Sharpness96%
Draw Rate4.4%

What is the Bird Opening: Mujannah expected score for White?

Snapshot

At all ratings, the Bird Opening: Mujannah has a 48.7% expected score for White (we're 90% confident it's between 48.1% and 49.3%), based on 20K Lichess games.

Extra Analysis

Deep-dive datasets for this opening

Time-Control Swing

Max swing: 10.6% · UltraBullet best · Classical worst

White Win% by Rating

Declines with rating: 42% → 30%

0
1000
1200
1400
1600
1800
2000
2200
2500+

  • 0-999: 41.6% win rate (1,745 games)
  • 1000-1199: 45.2% win rate (1,654 games)
  • 1200-1399: 46.9% win rate (1,911 games)
  • 1400-1599: 42.5% win rate (2,477 games)
  • 1600-1799: 48.4% win rate (3,621 games)
  • 1800-1999: 48.2% win rate (4,209 games)
  • 2000-2199: 49.1% win rate (2,839 games)
  • 2200-2499: 48.4% win rate (1,371 games)
  • 2500+: 30.4% win rate (280 games)

White Win% by Time Control

Best in UltraBullet (52%), worst in Classical (42%)

UltraBullet
Bullet
Blitz
Rapid
Classical

  • UltraBullet: 52.3% win rate (116 games)
  • Bullet: 47.0% win rate (6,776 games)
  • Blitz: 46.9% win rate (9,686 games)
  • Rapid: 44.4% win rate (3,299 games)
  • Classical: 41.7% win rate (230 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, UltraBullet: 30.0% expected score (1 games)
  • 0-999 rating, Bullet: 45.6% expected score (372 games)
  • 0-999 rating, Blitz: 45.2% expected score (895 games)
  • 0-999 rating, Rapid: 40.2% expected score (469 games)
  • 0-999 rating, Classical: 39.5% expected score (8 games)
  • 1000-1199 rating, UltraBullet: 21.5% expected score (2 games)
  • 1000-1199 rating, Bullet: 49.7% expected score (546 games)
  • 1000-1199 rating, Blitz: 46.2% expected score (697 games)
  • 1000-1199 rating, Rapid: 43.3% expected score (389 games)
  • 1000-1199 rating, Classical: 52.3% expected score (20 games)
  • 1200-1399 rating, UltraBullet: 41.3% expected score (10 games)
  • 1200-1399 rating, Bullet: 46.7% expected score (613 games)
  • 1200-1399 rating, Blitz: 50.8% expected score (939 games)
  • 1200-1399 rating, Rapid: 44.4% expected score (316 games)
  • 1200-1399 rating, Classical: 41.3% expected score (33 games)
  • 1400-1599 rating, UltraBullet: 24.2% expected score (14 games)
  • 1400-1599 rating, Bullet: 43.5% expected score (697 games)
  • 1400-1599 rating, Blitz: 45.3% expected score (1,243 games)
  • 1400-1599 rating, Rapid: 43.7% expected score (477 games)
  • 1400-1599 rating, Classical: 37.4% expected score (46 games)
  • 1600-1799 rating, UltraBullet: 50.0% expected score (18 games)
  • 1600-1799 rating, Bullet: 48.5% expected score (1,040 games)
  • 1600-1799 rating, Blitz: 50.9% expected score (2,028 games)
  • 1600-1799 rating, Rapid: 50.1% expected score (487 games)
  • 1600-1799 rating, Classical: 49.0% expected score (48 games)
  • 1800-1999 rating, UltraBullet: 64.3% expected score (9 games)
  • 1800-1999 rating, Bullet: 50.1% expected score (1,145 games)
  • 1800-1999 rating, Blitz: 50.0% expected score (2,428 games)
  • 1800-1999 rating, Rapid: 51.0% expected score (587 games)
  • 1800-1999 rating, Classical: 46.4% expected score (40 games)
  • 2000-2199 rating, UltraBullet: 62.4% expected score (59 games)
  • 2000-2199 rating, Bullet: 51.2% expected score (1,239 games)
  • 2000-2199 rating, Blitz: 49.7% expected score (1,000 games)
  • 2000-2199 rating, Rapid: 54.3% expected score (525 games)
  • 2000-2199 rating, Classical: 47.2% expected score (16 games)
  • 2200-2499 rating, UltraBullet: 83.4% expected score (3 games)
  • 2200-2499 rating, Bullet: 50.4% expected score (933 games)
  • 2200-2499 rating, Blitz: 50.0% expected score (391 games)
  • 2200-2499 rating, Rapid: 53.0% expected score (32 games)
  • 2200-2499 rating, Classical: 46.3% expected score (12 games)
  • 2500+ rating, Bullet: 59.4% expected score (191 games)
  • 2500+ rating, Blitz: 50.0% expected score (65 games)
  • 2500+ rating, Rapid: 55.4% expected score (17 games)
  • 2500+ rating, Classical: 67.7% expected score (7 games)

Related Openings

Parent
Bird Opening
50.1%
Variations (5)
Bird Opening: Batavo-Polish Attack
43.3%
Bird Opening: Double Duck Formation
50.1%
Bird Opening: Dutch Variation
50.5%
Bird Opening: Dutch Variation, Batavo Gambit
45.3%
Bird Opening: Dutch Variation, Dudweiler Gambit
27.2%
Analyze Bird Opening: Mujannah PositionsGet move-by-move win rates with the TrueElo analyzer

Frequently Asked Questions

What is the Bird Opening: Mujannah win rate?

The Bird Opening: Mujannah has a 46.5% (90% CI: 45.9%-47.1%) win rate for white, based on 20K rated games from Lichess.

At what rating does the Bird Opening: Mujannah perform best?

The Bird Opening: Mujannah performs best at 2000-2199 Elo with a 49.1% win rate for white (2.8K games). Win rate tends to decline at higher ratings as opponents know the theory better.

Is the Bird Opening: Mujannah better in blitz or rapid?

Bullet (47.0%) outperforms Classical (41.7%) by 5.3%. Choose your time control wisely.

How sharp is the Bird Opening: Mujannah?

The Bird Opening: Mujannah has a sharpness score of 95.6 (very decisive), meaning 95.6% of games end decisively. Average game length is 34 moves.

What is the Bird Opening: Mujannah win rate at 0-999 Elo?

At 0-999 Elo, the Bird Opening: Mujannah has a 41.6% (90% CI: 39.7%-43.5%) win rate for white, based on 1.7K Lichess games. Average game length is 28 moves with a 4.6% draw rate.

What is the Bird Opening: Mujannah win rate at 1000-1199 Elo?

At 1000-1199 Elo, the Bird Opening: Mujannah has a 45.2% (90% CI: 43.1%-47.2%) win rate for white, based on 1.7K Lichess games. Average game length is 29 moves with a 3.0% draw rate.

What is the Bird Opening: Mujannah win rate at 1200-1399 Elo?

At 1200-1399 Elo, the Bird Opening: Mujannah has a 46.9% (90% CI: 45.1%-48.8%) win rate for white, based on 1.9K Lichess games. Average game length is 30 moves with a 2.5% draw rate.

What is the Bird Opening: Mujannah win rate at 1400-1599 Elo?

At 1400-1599 Elo, the Bird Opening: Mujannah has a 42.5% (90% CI: 40.9%-44.1%) win rate for white, based on 2.5K Lichess games. Average game length is 31 moves with a 3.3% draw rate.

What is the Bird Opening: Mujannah win rate at 1600-1799 Elo?

At 1600-1799 Elo, the Bird Opening: Mujannah has a 48.4% (90% CI: 47.0%-49.7%) win rate for white, based on 3.6K Lichess games. Average game length is 34 moves with a 3.4% draw rate.

What is the Bird Opening: Mujannah win rate at 1800-1999 Elo?

At 1800-1999 Elo, the Bird Opening: Mujannah has a 48.2% (90% CI: 46.9%-49.4%) win rate for white, based on 4.2K Lichess games. Average game length is 36 moves with a 3.8% draw rate.

What is the Bird Opening: Mujannah win rate at 2000-2199 Elo?

At 2000-2199 Elo, the Bird Opening: Mujannah has a 49.1% (90% CI: 47.6%-50.6%) win rate for white, based on 2.8K Lichess games. Average game length is 37 moves with a 4.7% draw rate.

What is the Bird Opening: Mujannah win rate at 2200-2499 Elo?

At 2200-2499 Elo, the Bird Opening: Mujannah has a 48.4% (90% CI: 46.2%-50.6%) win rate for white, based on 1.4K Lichess games. Average game length is 37 moves with a 4.0% draw rate.

What is the Bird Opening: Mujannah win rate at 2500+ Elo?

At 2500+ Elo, the Bird Opening: Mujannah has a 30.4% (90% CI: 26.0%-35.0%) win rate for white, based on 280 Lichess games. Average game length is 58 moves with a 53.8% draw rate.

What is the Bird Opening: Mujannah win rate in UltraBullet?

In UltraBullet games, the Bird Opening: Mujannah has a 52.3% (90% CI: 44.8%-59.9%) win rate for white (116 Lichess games). Draw rate is 2.1%.

What is the Bird Opening: Mujannah win rate in Bullet?

In Bullet games, the Bird Opening: Mujannah has a 47.0% (90% CI: 46.0%-48.0%) win rate for white (6.8K Lichess games). Draw rate is 4.1%.

What is the Bird Opening: Mujannah win rate in Blitz?

In Blitz games, the Bird Opening: Mujannah has a 46.9% (90% CI: 46.0%-47.7%) win rate for white (9.7K Lichess games). Draw rate is 4.0%.

What is the Bird Opening: Mujannah win rate in Rapid?

In Rapid games, the Bird Opening: Mujannah has a 44.4% (90% CI: 43.0%-45.8%) win rate for white (3.3K Lichess games). Draw rate is 5.8%.

What is the Bird Opening: Mujannah win rate in Classical?

In Classical games, the Bird Opening: Mujannah has a 41.7% (90% CI: 36.4%-47.0%) win rate for white (230 Lichess games). Draw rate is 7.1%.

Is the Bird Opening: Mujannah a good opening?

The Bird Opening: Mujannah is statistically balanced with a 46.5% (90% CI: 45.9%-47.1%) 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.