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Sicilian DefenseOpen

B33For BlackAggressive

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6

A line for Black. Every figure below is computed separately for each rating band, and every one carries its own sample size.

Win rate, Black
51.6%48.7%49.7%49.2%
Band 600, n = 256Band 1000, n = 4,908Band 1400, n = 8,505Band 1800, n = 42,663
Blunder rate
pending70.0%69.2%60.3%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
-DCC
Black, band 600Black, band 1000Black, band 1400Black, band 1800
Share of games
0.0%0.0%0.1%0.2%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60045.3%3.1%51.6%--256-
100047.7%3.6%48.7%70.0%ply 8.04,908D
140046.6%3.8%49.7%69.2%ply 8.08,505C
180046.2%4.7%49.2%60.3%ply 8.042,663C

Results by band

What it actually does, band by band.

All four bands are on the page. The one matching your rating is marked. Nothing here is averaged across bands.

600Your band

At 600, the Sicilian Defense: Open scores 51.6% for Black across 256 games. The sample at 600 is too small to grade honestly.

1000Your bandD at 1000Blunder rate 70.0%, band median 42.9%

At 1000, the Sicilian Defense: Open scores 48.7% for Black across 4,908 games. Most openings score better than this at this level. Games in this line leave known theory around move 4 on average, and 70.0% include an early material blunder (10 games at 1000).

1400Your bandC at 1400Blunder rate 69.2%, band median 40.0%

At 1400, the Sicilian Defense: Open scores 49.7% for Black across 8,505 games. That is below average at this level. Games in this line leave known theory around move 4 on average, and 69.2% include an early material blunder (13 games at 1400).

1800Your bandC at 1800Blunder rate 60.3%, band median 36.4%

At 1800, the Sicilian Defense: Open scores 49.2% for Black across 42,663 games. That is below average at this level. Games in this line leave known theory around move 4 on average, and 60.3% include an early material blunder (63 games at 1800).

Questions

Common questions about this page.

At 600, the Sicilian Defense: Open scores 51.6% for Black across 256 games. The sample at 600 is too small to grade honestly.

At 1000, the Sicilian Defense: Open scores 48.7% for Black across 4,908 games. Most openings score better than this at this level. Games in this line leave known theory around move 4 on average, and 70.0% include an early material blunder (10 games at 1000).

The Sicilian Defense: Open (B33) is a line for Black. The main line runs 1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6.