Skip to content
TrueEloPlay what wins.
Score a position

Sicilian Defense: Hyperaccelerated Pterodactyl

943K games from Lichess · Updated January 2026

1
2
3
4
5
6
7
h8
g
f
e
d
c
b
a
3...Bg7
Analyze this line move by move

Black expected score · All ratings · All speeds

50.7%

45%55%
Floor50.6%

the worst score you would still get, 90% confident. At best 50.8%.

Measured over 943K games at this level and clock.

Playablewins about as often as it loses at this level

Roughly even — the middlegame decides more than this opening choice does.

Outcomes for Black

Draw 3.7 · Score = win + ½ of the draws · 943K games

Rank among the families Black can choose here
not ranked — this is a variation, not a family
Games in this context
943K
Best context
54.5% at 0-999 Bullet
Worst context
41.4% at 2500+ Blitz
Average game length
34 moves
Games that end decisively
96.3%
Draws
3.7%

Best and worst are the strongest and weakest squares with at least 500 games behind them. The table further down shows every square, including thinner ones.

Where it holds · Black score by rating × clock

Green is clearly ahead for Black, grey is around even, red is behind. Tap a cell to measure there, and again to clear. It falls away as the rating rises: 49.8% at 0-999, 40.7% at 2500+.

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: 42.6% expected score (12 games)
  • 0-999 rating, Bullet: 54.5% expected score (2,588 games)
  • 0-999 rating, Blitz: 51.8% expected score (2,417 games)
  • 0-999 rating, Rapid: 50.3% expected score (544 games)
  • 0-999 rating, Classical: 50.0% expected score (3 games)
  • 1000-1199 rating, UltraBullet: 59.5% expected score (46 games)
  • 1000-1199 rating, Bullet: 53.3% expected score (9,511 games)
  • 1000-1199 rating, Blitz: 50.4% expected score (8,050 games)
  • 1000-1199 rating, Rapid: 51.1% expected score (1,805 games)
  • 1000-1199 rating, Classical: 48.5% expected score (30 games)
  • 1200-1399 rating, UltraBullet: 57.3% expected score (129 games)
  • 1200-1399 rating, Bullet: 52.3% expected score (22,066 games)
  • 1200-1399 rating, Blitz: 50.2% expected score (23,149 games)
  • 1200-1399 rating, Rapid: 49.1% expected score (5,523 games)
  • 1200-1399 rating, Classical: 44.5% expected score (89 games)
  • 1400-1599 rating, UltraBullet: 56.7% expected score (417 games)
  • 1400-1599 rating, Bullet: 51.7% expected score (42,920 games)
  • 1400-1599 rating, Blitz: 51.0% expected score (51,838 games)
  • 1400-1599 rating, Rapid: 50.1% expected score (12,213 games)
  • 1400-1599 rating, Classical: 49.4% expected score (351 games)
  • 1600-1799 rating, UltraBullet: 44.5% expected score (532 games)
  • 1600-1799 rating, Bullet: 52.1% expected score (68,351 games)
  • 1600-1799 rating, Blitz: 51.0% expected score (94,592 games)
  • 1600-1799 rating, Rapid: 49.2% expected score (22,285 games)
  • 1600-1799 rating, Classical: 52.5% expected score (830 games)
  • 1800-1999 rating, UltraBullet: 40.0% expected score (248 games)
  • 1800-1999 rating, Bullet: 51.3% expected score (100,934 games)
  • 1800-1999 rating, Blitz: 50.8% expected score (115,645 games)
  • 1800-1999 rating, Rapid: 49.4% expected score (22,028 games)
  • 1800-1999 rating, Classical: 48.3% expected score (1,091 games)
  • 2000-2199 rating, UltraBullet: 41.4% expected score (103 games)
  • 2000-2199 rating, Bullet: 50.9% expected score (107,987 games)
  • 2000-2199 rating, Blitz: 50.1% expected score (67,464 games)
  • 2000-2199 rating, Rapid: 48.1% expected score (10,387 games)
  • 2000-2199 rating, Classical: 54.8% expected score (444 games)
  • 2200-2499 rating, UltraBullet: 47.6% expected score (99 games)
  • 2200-2499 rating, Bullet: 49.9% expected score (89,920 games)
  • 2200-2499 rating, Blitz: 47.9% expected score (25,389 games)
  • 2200-2499 rating, Rapid: 47.5% expected score (2,584 games)
  • 2200-2499 rating, Classical: 36.7% expected score (66 games)
  • 2500+ rating, UltraBullet: 42.0% expected score (11 games)
  • 2500+ rating, Bullet: 48.2% expected score (25,241 games)
  • 2500+ rating, Blitz: 41.4% expected score (2,601 games)
  • 2500+ rating, Rapid: 36.3% expected score (57 games)
  • 2500+ rating, Classical: 35.7% expected score (2 games)

Related Openings

Parent
Sicilian Defense
48.5%
Variations (5)
Sicilian Defense: Bowdler Attack
47.2%
Sicilian Defense: Old Sicilian
48.5%
Sicilian Defense: Closed
49.8%
Sicilian Defense: Alapin Variation
50.2%
Sicilian Defense: McDonnell Attack
48.6%
Continuations (1)
Sicilian Defense: Hyperaccelerated Pterodactyl, Exchange Variation
48.4%
Analyze Sicilian Defense: Hyperaccelerated Pterodactyl PositionsSee what each move is worth at your rating, move by move

Methodology

Across every rating and clock, the Sicilian Defense: Hyperaccelerated Pterodactyl scores 50.7% for Black — we are 90% confident the real figure is between 50.6% and 50.8% — from 943K Lichess games. Win rate, draw rate and loss rate come from games played December 2023 to November 2025.

How the figures are made
Whose games these are
943K+ rated games played on Lichess (2023-12 to 2025-11). The games are Lichess’s and free for anyone to use. What is ours is the reading of them. Last rebuilt January 2026.
Which games we count
  • Rated games only — nothing casual.
  • Both players within 200 rating points of each other. A mismatch tells you about the gap, not about the opening.
  • At least 2 moves played.
  • A game is filed under White’s rating.
Why every number comes with a range
A number off a few hundred games is a guess. The same number off millions is a fact. The range is what tells them apart, and it is what the lists rank on — so an opening cannot reach the top on a lucky run of forty games. The more games behind a figure, the narrower its range.
How much we need before we say anything
An opening page needs 100 games. A gambit needs 50 games at a rating before we will say whether it pays there. The chaos and trap lists need 500 games overall and 250 games at one rating or clock.

Frequently Asked Questions

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate?

Playing the Sicilian Defense: Hyperaccelerated Pterodactyl, Black wins 48.8%, draws 3.7% and loses 47.5%. Counting a draw as half a point, that is an Expected Score of 50.7%. It rests on 943K rated games from Lichess.

At what rating does the Sicilian Defense: Hyperaccelerated Pterodactyl perform best?

The Sicilian Defense: Hyperaccelerated Pterodactyl performs best for Black at 0-999, with an Expected Score of 52.9% (5.6K games) and the highest Floor of any rating with enough games to read.

Is the Sicilian Defense: Hyperaccelerated Pterodactyl better in blitz or rapid?

For Black, the Sicilian Defense: Hyperaccelerated Pterodactyl scores higher in Blitz: an Expected Score of 50.5% in Blitz (391K games) against 49.2% in Rapid (77K games).

How sharp is the Sicilian Defense: Hyperaccelerated Pterodactyl?

The Sicilian Defense: Hyperaccelerated Pterodactyl has a sharpness score of 96.3 (very decisive), meaning 96.3% of games end decisively. Average game length is 34 moves.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate at 0-999?

At 0-999, Black wins 51.9%, draws 1.9% and loses 46.2%. Counting a draw as half a point, that is an Expected Score of 52.9%. It rests on 5.6K Lichess games, which average 25 moves.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate at 1000-1199?

At 1000-1199, Black wins 50.8%, draws 2.1% and loses 47.0%. Counting a draw as half a point, that is an Expected Score of 51.9%. It rests on 19K Lichess games, which average 27 moves.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate at 1200-1399?

At 1200-1399, Black wins 49.8%, draws 2.3% and loses 47.9%. Counting a draw as half a point, that is an Expected Score of 51.0%. It rests on 51K Lichess games, which average 29 moves.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate at 1400-1599?

At 1400-1599, Black wins 49.8%, draws 2.7% and loses 47.4%. Counting a draw as half a point, that is an Expected Score of 51.2%. It rests on 108K Lichess games, which average 31 moves.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate at 1600-1799?

At 1600-1799, Black wins 49.5%, draws 3.3% and loses 47.2%. Counting a draw as half a point, that is an Expected Score of 51.2%. It rests on 187K Lichess games, which average 33 moves.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate at 1800-1999?

At 1800-1999, Black wins 49.0%, draws 3.7% and loses 47.3%. Counting a draw as half a point, that is an Expected Score of 50.9%. It rests on 240K Lichess games, which average 35 moves.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate at 2000-2199?

At 2000-2199, Black wins 48.3%, draws 4.2% and loses 47.4%. Counting a draw as half a point, that is an Expected Score of 50.5%. It rests on 186K Lichess games, which average 36 moves.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate at 2200-2499?

At 2200-2499, Black wins 47.0%, draws 4.8% and loses 48.2%. Counting a draw as half a point, that is an Expected Score of 49.4%. It rests on 118K Lichess games, which average 37 moves.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate at 2500+?

At 2500+, Black wins 44.4%, draws 6.4% and loses 49.2%. Counting a draw as half a point, that is an Expected Score of 47.6%. It rests on 28K Lichess games, which average 41 moves.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate in UltraBullet?

In UltraBullet, Black wins 47.6%, draws 1.6% and loses 50.8%. Counting a draw as half a point, that is an Expected Score of 48.4%. It rests on 1.6K Lichess games.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate in Bullet?

In Bullet, Black wins 49.5%, draws 3.1% and loses 47.4%. Counting a draw as half a point, that is an Expected Score of 51.1%. It rests on 470K Lichess games.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate in Blitz?

In Blitz, Black wins 48.3%, draws 4.3% and loses 47.4%. Counting a draw as half a point, that is an Expected Score of 50.5%. It rests on 391K Lichess games.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate in Rapid?

In Rapid, Black wins 46.9%, draws 4.7% and loses 48.5%. Counting a draw as half a point, that is an Expected Score of 49.2%. It rests on 77K Lichess games.

What is the Sicilian Defense: Hyperaccelerated Pterodactyl win rate in Classical?

In Classical, Black wins 46.7%, draws 7.1% and loses 46.3%. Counting a draw as half a point, that is an Expected Score of 50.2%. It rests on 2.9K Lichess games.

Is the Sicilian Defense: Hyperaccelerated Pterodactyl a good opening?

The Sicilian Defense: Hyperaccelerated Pterodactyl is about level. Across all ratings, Black wins 48.8% of its games and loses 47.5%. It performs best at 0-999. Your results depend on your rating, time control, and how well you know the typical plans.