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Colle System: Pterodactyl Variation

300 games from Lichess · Updated January 2026

Playable
White Expected Score55.3%Range (90% confident): 50.6% – 60.0%Based on 300 games
0%55.3%100%
Range (90% confident): 50.6% – 60.0%
Outcome Distribution
51.9%6.8%41.3%
Win
Draw
Loss
4...Qa5+
Colle System: Pterodactyl Variation
Analyzen=300
Avg Length35 moves
Sharpness93%
Draw Rate6.8%

What is the Colle System: Pterodactyl Variation expected score for White?

Snapshot

At all ratings, the Colle System: Pterodactyl Variation has a 55.3% expected score for White (we're 90% confident it's between 50.6% and 60.0%), based on 300 Lichess games.

White Win% by Rating

Declines with rating: 74% → 60%

0
1000
1200
1400
1600
1800
2000
2200
2500+

  • 0-999: 73.9% win rate (10 games)
  • 1000-1199: 39.4% win rate (15 games)
  • 1200-1399: 31.4% win rate (16 games)
  • 1400-1599: 63.3% win rate (53 games)
  • 1600-1799: 42.6% win rate (63 games)
  • 1800-1999: 50.3% win rate (71 games)
  • 2000-2199: 39.7% win rate (30 games)
  • 2200-2499: 64.7% win rate (41 games)
  • 2500+: 60.0% win rate (1 games)

White Win% by Time Control

Best in UltraBullet (60%), worst in Rapid (37%)

UltraBullet
Bullet
Blitz
Rapid
Classical

  • UltraBullet: 60.0% win rate (1 games)
  • Bullet: 52.0% win rate (209 games)
  • Blitz: 51.5% win rate (81 games)
  • Rapid: 36.8% win rate (8 games)
  • Classical: 60.0% win rate (1 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, Blitz: 76.1% expected score (10 games)
  • 1000-1199 rating, Bullet: 44.2% expected score (7 games)
  • 1000-1199 rating, Blitz: 55.9% expected score (7 games)
  • 1000-1199 rating, Rapid: 30.0% expected score (1 games)
  • 1200-1399 rating, Bullet: 50.0% expected score (8 games)
  • 1200-1399 rating, Blitz: 32.4% expected score (7 games)
  • 1200-1399 rating, Rapid: 30.0% expected score (1 games)
  • 1400-1599 rating, Bullet: 67.0% expected score (28 games)
  • 1400-1599 rating, Blitz: 60.6% expected score (22 games)
  • 1400-1599 rating, Rapid: 72.3% expected score (3 games)
  • 1600-1799 rating, Bullet: 43.5% expected score (44 games)
  • 1600-1799 rating, Blitz: 58.2% expected score (17 games)
  • 1600-1799 rating, Rapid: 50.0% expected score (2 games)
  • 1800-1999 rating, UltraBullet: 70.0% expected score (1 games)
  • 1800-1999 rating, Bullet: 56.6% expected score (52 games)
  • 1800-1999 rating, Blitz: 41.4% expected score (16 games)
  • 1800-1999 rating, Rapid: 30.0% expected score (1 games)
  • 1800-1999 rating, Classical: 70.0% expected score (1 games)
  • 2000-2199 rating, Bullet: 43.5% expected score (29 games)
  • 2000-2199 rating, Blitz: 70.0% expected score (1 games)
  • 2200-2499 rating, Bullet: 65.7% expected score (40 games)
  • 2200-2499 rating, Blitz: 70.0% expected score (1 games)
  • 2500+ rating, Bullet: 70.0% expected score (1 games)

Related Openings

Variations (1)
Colle System: Rhamphorhynchus Variation
46.3%
Analyze Colle System: Pterodactyl Variation PositionsGet move-by-move win rates with the TrueElo analyzer

Frequently Asked Questions

What is the Colle System: Pterodactyl Variation win rate?

The Colle System: Pterodactyl Variation has a 51.9% (90% CI: 47.2%-56.6%) win rate for white, based on 300 rated games from Lichess.

At what rating does the Colle System: Pterodactyl Variation perform best?

The Colle System: Pterodactyl Variation performs best at 1400-1599 Elo with a 63.3% win rate for white (53 games). Win rate tends to decline at higher ratings as opponents know the theory better.

Is the Colle System: Pterodactyl Variation better in blitz or rapid?

Bullet (52.0%) outperforms Blitz (51.5%) by 0.5%. Choose your time control wisely.

How sharp is the Colle System: Pterodactyl Variation?

The Colle System: Pterodactyl Variation has a sharpness score of 93.2 (decisive), meaning 93.2% of games end decisively. Average game length is 35 moves.

What is the Colle System: Pterodactyl Variation win rate in Bullet?

In Bullet games, the Colle System: Pterodactyl Variation has a 52.0% (90% CI: 46.4%-57.7%) win rate for white (209 Lichess games). Draw rate is 5.5%.

Is the Colle System: Pterodactyl Variation a good opening?

The Colle System: Pterodactyl Variation is statistically balanced with a 51.9% (90% CI: 47.2%-56.6%) win rate across all ratings. It performs best at 1400-1599 Elo. Your results depend on your rating, time control, and how well you know the typical plans.