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Pterodactyl Defense: Sicilian, Anhanguera

8.0K games from Lichess · Updated January 2026

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Analyze this line move by move

White expected score · All ratings · All speeds

44.4%

40%55%
Floor43.5%

the worst score you would still get, 90% confident. At best 45.3%.

Measured over 8.0K games at this level and clock.

Tough Sellloses more often than it wins at this level

White comes out behind here — there are better weapons in the list.

Outcomes for White

Draw 4.4 · Score = win + ½ of the draws · 8.0K games

Rank among the families White can choose here
not ranked — this is a variation, not a family
Games in this context
8.0K
Best context
47.0% at 2200-2499 Blitz
Worst context
38.6% at 2500+ Bullet
Average game length
35 moves
Games that end decisively
95.6%
Draws
4.4%

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 · White score by rating × clock

Green is clearly ahead for White, grey is around even, red is behind. Tap a cell to measure there, and again to clear. It gets better as the rating rises: 37.1% at 0-999, 50.9% 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, Bullet: 39.5% expected score (8 games)
  • 0-999 rating, Blitz: 39.9% expected score (43 games)
  • 0-999 rating, Rapid: 31.9% expected score (4 games)
  • 1000-1199 rating, Bullet: 48.6% expected score (33 games)
  • 1000-1199 rating, Blitz: 51.8% expected score (55 games)
  • 1000-1199 rating, Rapid: 41.3% expected score (10 games)
  • 1200-1399 rating, Bullet: 32.4% expected score (61 games)
  • 1200-1399 rating, Blitz: 50.5% expected score (111 games)
  • 1200-1399 rating, Rapid: 42.5% expected score (58 games)
  • 1400-1599 rating, Bullet: 45.4% expected score (118 games)
  • 1400-1599 rating, Blitz: 44.9% expected score (263 games)
  • 1400-1599 rating, Rapid: 52.6% expected score (97 games)
  • 1400-1599 rating, Classical: 50.0% expected score (6 games)
  • 1600-1799 rating, UltraBullet: 70.0% expected score (1 games)
  • 1600-1799 rating, Bullet: 45.0% expected score (257 games)
  • 1600-1799 rating, Blitz: 43.3% expected score (374 games)
  • 1600-1799 rating, Rapid: 54.0% expected score (73 games)
  • 1600-1799 rating, Classical: 72.3% expected score (3 games)
  • 1800-1999 rating, UltraBullet: 57.7% expected score (5 games)
  • 1800-1999 rating, Bullet: 48.3% expected score (346 games)
  • 1800-1999 rating, Blitz: 46.6% expected score (561 games)
  • 1800-1999 rating, Rapid: 51.4% expected score (72 games)
  • 1800-1999 rating, Classical: 21.5% expected score (2 games)
  • 2000-2199 rating, UltraBullet: 30.0% expected score (1 games)
  • 2000-2199 rating, Bullet: 42.9% expected score (619 games)
  • 2000-2199 rating, Blitz: 45.4% expected score (1,216 games)
  • 2000-2199 rating, Rapid: 46.8% expected score (75 games)
  • 2000-2199 rating, Classical: 70.0% expected score (1 games)
  • 2200-2499 rating, Bullet: 41.2% expected score (1,139 games)
  • 2200-2499 rating, Blitz: 47.0% expected score (1,317 games)
  • 2200-2499 rating, Rapid: 51.9% expected score (53 games)
  • 2200-2499 rating, Classical: 30.0% expected score (1 games)
  • 2500+ rating, Bullet: 38.6% expected score (917 games)
  • 2500+ rating, Blitz: 44.1% expected score (133 games)
  • 2500+ rating, Rapid: 70.0% expected score (1 games)

Related Openings

Parent
Pterodactyl Defense
44.0%
Variations (5)
Pterodactyl Defense: Eastern, Anhanguera
48.1%
Pterodactyl Defense: Queen Pterodactyl, Quiet Line
47.7%
Pterodactyl Defense: Eastern, Benoni
49.3%
Pterodactyl Defense: Western, Rhamphorhynchus
48.0%
Pterodactyl Defense: Eastern, Rhamphorhynchus
51.1%
Analyze Pterodactyl Defense: Sicilian, Anhanguera PositionsSee what each move is worth at your rating, move by move

Methodology

Across every rating and clock, the Pterodactyl Defense: Sicilian, Anhanguera scores 44.4% for White — we are 90% confident the real figure is between 43.5% and 45.3% — from 8.0K 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
8.0K+ 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 Pterodactyl Defense: Sicilian, Anhanguera win rate?

Playing the Pterodactyl Defense: Sicilian, Anhanguera, White wins 42.2%, draws 4.4% and loses 53.4%. Counting a draw as half a point, that is an Expected Score of 44.4%. It rests on 8.0K rated games from Lichess.

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

The Pterodactyl Defense: Sicilian, Anhanguera performs best for White at 1800-1999, with an Expected Score of 47.5% (986 games) and the highest Floor of any rating with enough games to read.

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

For White, the Pterodactyl Defense: Sicilian, Anhanguera scores higher in Rapid: an Expected Score of 46.0% in Blitz (4.1K games) against 49.8% in Rapid (443 games).

How sharp is the Pterodactyl Defense: Sicilian, Anhanguera?

The Pterodactyl Defense: Sicilian, Anhanguera has a sharpness score of 95.6 (very decisive), meaning 95.6% of games end decisively. Average game length is 35 moves.

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

At 1200-1399, White wins 42.1%, draws 2.8% and loses 55.1%. Counting a draw as half a point, that is an Expected Score of 43.5%. It rests on 230 Lichess games, which average 27 moves.

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

At 1400-1599, White wins 45.6%, draws 2.0% and loses 52.4%. Counting a draw as half a point, that is an Expected Score of 46.6%. It rests on 484 Lichess games, which average 29 moves.

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

At 1600-1799, White wins 43.6%, draws 3.3% and loses 53.1%. Counting a draw as half a point, that is an Expected Score of 45.3%. It rests on 708 Lichess games, which average 31 moves.

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

At 1800-1999, White wins 45.9%, draws 3.2% and loses 50.9%. Counting a draw as half a point, that is an Expected Score of 47.5%. It rests on 986 Lichess games, which average 33 moves.

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

At 2000-2199, White wins 42.6%, draws 4.2% and loses 53.3%. Counting a draw as half a point, that is an Expected Score of 44.7%. It rests on 1.9K Lichess games, which average 34 moves.

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

At 2200-2499, White wins 41.8%, draws 5.2% and loses 53.0%. Counting a draw as half a point, that is an Expected Score of 44.4%. It rests on 2.5K Lichess games, which average 36 moves.

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

At 2500+, White wins 35.9%, draws 7.0% and loses 57.1%. Counting a draw as half a point, that is an Expected Score of 39.4%. It rests on 1.1K Lichess games, which average 41 moves.

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

In Bullet, White wins 39.7%, draws 4.2% and loses 56.1%. Counting a draw as half a point, that is an Expected Score of 41.8%. It rests on 3.5K Lichess games.

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

In Blitz, White wins 43.7%, draws 4.4% and loses 51.8%. Counting a draw as half a point, that is an Expected Score of 46.0%. It rests on 4.1K Lichess games.

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

In Rapid, White wins 46.9%, draws 5.7% and loses 47.4%. Counting a draw as half a point, that is an Expected Score of 49.8%. It rests on 443 Lichess games.

Is the Pterodactyl Defense: Sicilian, Anhanguera a good opening?

The Pterodactyl Defense: Sicilian, Anhanguera is hard work for White — it favours Black. Across all ratings, White wins 42.2% of its games and loses 53.4%. It performs best at 1800-1999. Your results depend on your rating, time control, and how well you know the typical plans.