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Sicilian Defense

B27For BlackAggressive

1. e4 c5 2. Nf3

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
47.1%48.2%48.3%47.5%
Band 600, n = 44,473Band 1000, n = 385,369Band 1400, n = 466,086Band 1800, n = 1,381,673
Blunder rate
44.4%42.4%30.0%31.3%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
CBAB
Black, band 600Black, band 1000Black, band 1400Black, band 1800
Share of games
1.0%2.7%4.3%6.6%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60049.3%3.7%47.1%44.4%ply 3.044,473C
100048.4%3.4%48.2%42.4%ply 3.0385,369B
140048.1%3.7%48.3%30.0%ply 3.0466,086A
180048.0%4.6%47.5%31.3%ply 3.01,381,673B

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 bandC at 600Blunder rate 44.4%, band median 44.6%

At 600, the Sicilian Defense scores 47.1% for Black across 44,473 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 44.4% include an early material blunder (9 games at 600).

1000Your bandB at 1000Blunder rate 42.4%, band median 42.9%

At 1000, the Sicilian Defense scores 48.2% for Black across 385,369 games. That is close to the average at this level. Games in this line leave known theory around move 2 on average, and 42.4% include an early material blunder (66 games at 1000).

1400Your bandA at 1400Blunder rate 30.0%, band median 40.0%

At 1400, the Sicilian Defense scores 48.3% for Black across 466,086 games. That is comfortably above average at this level. Games in this line leave known theory around move 2 on average, and 30.0% include an early material blunder (50 games at 1400).

1800Your bandB at 1800Blunder rate 31.3%, band median 36.4%

At 1800, the Sicilian Defense scores 47.5% for Black across 1,381,673 games. That is close to the average at this level. Games in this line leave known theory around move 2 on average, and 31.3% include an early material blunder (96 games at 1800).

Variations

Where the line goes next.

The lines that continue the Sicilian Defense, most played first at your band. Switch the band in the header and both the figures and the order follow.

  • CCBBB30

    Sicilian Defense: Old Sicilian

    1. e4 c5 2. Nf3 Nc6

    0.5% of games at 600, n = 20,2701.3% of games at 1000, n = 190,9592.2% of games at 1400, n = 231,6353.1% of games at 1800, n = 649,527

  • CCBBB50

    Sicilian Defense: Modern Variations

    1. e4 c5 2. Nf3 d6

    0.2% of games at 600, n = 10,4900.7% of games at 1000, n = 95,1621.1% of games at 1400, n = 119,0881.8% of games at 1800, n = 380,603

  • CBBBB40

    Sicilian Defense: French Variation

    1. e4 c5 2. Nf3 e6

    0.2% of games at 600, n = 6,6230.5% of games at 1000, n = 71,2930.9% of games at 1400, n = 91,8861.3% of games at 1800, n = 270,099

  • DCCBB27

    Sicilian Defense: Hyperaccelerated Dragon

    1. e4 c5 2. Nf3 g6

    0.1% of games at 600, n = 2,2040.1% of games at 1000, n = 18,0410.2% of games at 1400, n = 19,8790.3% of games at 1800, n = 62,294

Questions

Common questions about this page.

At 600, the Sicilian Defense scores 47.1% for Black across 44,473 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 44.4% include an early material blunder (9 games at 600).

At 1000, the Sicilian Defense scores 48.2% for Black across 385,369 games. That is close to the average at this level. Games in this line leave known theory around move 2 on average, and 42.4% include an early material blunder (66 games at 1000).

The Sicilian Defense (B27) is a line for Black. The main line runs 1. e4 c5 2. Nf3.