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Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted

2.3K games from Lichess · Updated January 2026

Playable
White Expected Score49.7%Range (90% confident): 48.0% – 51.4%Based on 2.3K games
0%49.7%100%
Range (90% confident): 48.0% – 51.4%
Outcome Distribution
47.3%4.8%47.9%
Win
Draw
Loss
5...Qa5+
Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted
Analyzen=2.3K
Avg Length36 moves
Sharpness95%
Draw Rate4.8%

What is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted expected score for White?

Snapshot

At all ratings, the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted has a 49.7% expected score for White (we're 90% confident it's between 48.0% and 51.4%), based on 2.3K Lichess games.

White Win% by Rating

Declines with rating: 65% → 47%

0
1000
1200
1400
1600
1800
2000
2200
2500+

  • 0-999: 65.2% win rate (10 games)
  • 1000-1199: 54.1% win rate (53 games)
  • 1200-1399: 42.0% win rate (121 games)
  • 1400-1599: 48.6% win rate (230 games)
  • 1600-1799: 49.8% win rate (379 games)
  • 1800-1999: 46.3% win rate (637 games)
  • 2000-2199: 45.0% win rate (553 games)
  • 2200-2499: 49.4% win rate (297 games)
  • 2500+: 47.1% win rate (59 games)

White Win% by Time Control

Best in Bullet (49%), worst in Classical (40%)

Bullet
Blitz
Rapid
Classical

  • Bullet: 49.4% win rate (502 games)
  • Blitz: 47.1% win rate (1,383 games)
  • Rapid: 46.0% win rate (432 games)
  • Classical: 40.4% win rate (22 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: 68.2% expected score (4 games)
  • 0-999 rating, Blitz: 68.2% expected score (4 games)
  • 0-999 rating, Rapid: 50.0% expected score (2 games)
  • 1000-1199 rating, Bullet: 60.3% expected score (18 games)
  • 1000-1199 rating, Blitz: 51.7% expected score (29 games)
  • 1000-1199 rating, Rapid: 50.0% expected score (6 games)
  • 1200-1399 rating, Bullet: 54.9% expected score (29 games)
  • 1200-1399 rating, Blitz: 37.6% expected score (71 games)
  • 1200-1399 rating, Rapid: 47.8% expected score (21 games)
  • 1400-1599 rating, Bullet: 47.2% expected score (34 games)
  • 1400-1599 rating, Blitz: 52.0% expected score (124 games)
  • 1400-1599 rating, Rapid: 48.6% expected score (68 games)
  • 1400-1599 rating, Classical: 50.0% expected score (4 games)
  • 1600-1799 rating, Bullet: 50.9% expected score (57 games)
  • 1600-1799 rating, Blitz: 54.8% expected score (209 games)
  • 1600-1799 rating, Rapid: 50.0% expected score (104 games)
  • 1600-1799 rating, Classical: 26.2% expected score (9 games)
  • 1800-1999 rating, Bullet: 43.5% expected score (83 games)
  • 1800-1999 rating, Blitz: 48.8% expected score (405 games)
  • 1800-1999 rating, Rapid: 50.0% expected score (141 games)
  • 1800-1999 rating, Classical: 50.0% expected score (8 games)
  • 2000-2199 rating, Bullet: 53.9% expected score (127 games)
  • 2000-2199 rating, Blitz: 46.8% expected score (353 games)
  • 2000-2199 rating, Rapid: 44.0% expected score (73 games)
  • 2200-2499 rating, Bullet: 52.2% expected score (115 games)
  • 2200-2499 rating, Blitz: 50.6% expected score (165 games)
  • 2200-2499 rating, Rapid: 74.4% expected score (17 games)
  • 2500+ rating, Bullet: 54.1% expected score (35 games)
  • 2500+ rating, Blitz: 50.0% expected score (23 games)
  • 2500+ rating, Classical: 70.0% expected score (1 games)

Related Openings

Parent
Modern Defense
48.7%
Variations (5)
Modern Defense: Anti-Modern
53.1%
Modern Defense: Averbakh System
49.0%
Modern Defense: Averbakh Variation, Pseudo-Sämisch
49.5%
Modern Defense: Beefeater Variation
45.4%
Modern Defense: Bishop Attack
49.2%
Analyze Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted PositionsGet move-by-move win rates with the TrueElo analyzer

Frequently Asked Questions

What is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted win rate?

The Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted has a 47.3% (90% CI: 45.6%-49.0%) win rate for white, based on 2.3K rated games from Lichess.

At what rating does the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted perform best?

The Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted performs best at 1600-1799 Elo with a 49.8% win rate for white (379 games). Win rate tends to decline at higher ratings as opponents know the theory better.

Is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted better in blitz or rapid?

Bullet (49.4%) outperforms Rapid (46.0%) by 3.4%. Choose your time control wisely.

How sharp is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted?

The Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted has a sharpness score of 95.2 (very decisive), meaning 95.2% of games end decisively. Average game length is 36 moves.

What is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted win rate at 1200-1399 Elo?

At 1200-1399 Elo, the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted has a 42.0% (90% CI: 34.8%-49.4%) win rate for white, based on 121 Lichess games. Average game length is 29 moves with a 2.9% draw rate.

What is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted win rate at 1400-1599 Elo?

At 1400-1599 Elo, the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted has a 48.6% (90% CI: 43.2%-54.0%) win rate for white, based on 230 Lichess games. Average game length is 33 moves with a 3.2% draw rate.

What is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted win rate at 1600-1799 Elo?

At 1600-1799 Elo, the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted has a 49.8% (90% CI: 45.6%-54.0%) win rate for white, based on 379 Lichess games. Average game length is 35 moves with a 4.6% draw rate.

What is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted win rate at 1800-1999 Elo?

At 1800-1999 Elo, the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted has a 46.3% (90% CI: 43.0%-49.5%) win rate for white, based on 637 Lichess games. Average game length is 37 moves with a 4.2% draw rate.

What is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted win rate at 2000-2199 Elo?

At 2000-2199 Elo, the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted has a 45.0% (90% CI: 41.5%-48.5%) win rate for white, based on 553 Lichess games. Average game length is 39 moves with a 6.0% draw rate.

What is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted win rate at 2200-2499 Elo?

At 2200-2499 Elo, the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted has a 49.4% (90% CI: 44.7%-54.2%) win rate for white, based on 297 Lichess games. Average game length is 39 moves with a 6.5% draw rate.

What is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted win rate in Bullet?

In Bullet games, the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted has a 49.4% (90% CI: 45.7%-53.0%) win rate for white (502 Lichess games). Draw rate is 4.3%.

What is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted win rate in Blitz?

In Blitz games, the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted has a 47.1% (90% CI: 44.9%-49.3%) win rate for white (1.4K Lichess games). Draw rate is 4.4%.

What is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted win rate in Rapid?

In Rapid games, the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted has a 46.0% (90% CI: 42.1%-50.0%) win rate for white (432 Lichess games). Draw rate is 7.3%.

Is the Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted a good opening?

The Modern Defense: Semi-Averbakh Variation, Pterodactyl Variation Accepted is slightly favors black with a 47.3% (90% CI: 45.6%-49.0%) win rate across all ratings. It performs best at 1600-1799 Elo. Your results depend on your rating, time control, and how well you know the typical plans.