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Sicilian DefenseBowdler Attack

B20For WhiteAggressive

1. e4 c5 2. Bc4

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

Win rate, White
46.9%46.0%46.0%45.9%
Band 600, n = 23,888Band 1000, n = 146,640Band 1400, n = 138,041Band 1800, n = 231,195
Blunder rate
44.2%41.1%29.4%28.1%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
CCBB
White, band 600White, band 1000White, band 1400White, band 1800
Share of games
0.6%1.0%1.3%1.1%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60046.9%3.3%49.9%44.2%ply 3.023,888C
100046.0%3.2%50.9%41.1%ply 3.0146,640C
140046.0%3.5%50.5%29.4%ply 3.0138,041B
180045.9%4.1%50.0%28.1%ply 3.0231,195B

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 44.2%, band median 44.6%

At 600, the Sicilian Defense: Bowdler Attack scores 46.9% for White across 23,888 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 44.2% include an early material blunder (43 games at 600).

1000Your bandC at 1000Blunder rate 41.1%, band median 42.9%

At 1000, the Sicilian Defense: Bowdler Attack scores 46.0% for White across 146,640 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 41.1% include an early material blunder (309 games at 1000).

1400Your bandB at 1400Blunder rate 29.4%, band median 40.0%

At 1400, the Sicilian Defense: Bowdler Attack scores 46.0% for White across 138,041 games. That is close to the average at this level. Games in this line leave known theory around move 2 on average, and 29.4% include an early material blunder (289 games at 1400).

1800Your bandB at 1800Blunder rate 28.1%, band median 36.4%

At 1800, the Sicilian Defense: Bowdler Attack scores 45.9% for White across 231,195 games. That is close to the average at this level. Games in this line leave known theory around move 2 on average, and 28.1% include an early material blunder (473 games at 1800).

Questions

Common questions about this page.

At 600, the Sicilian Defense: Bowdler Attack scores 46.9% for White across 23,888 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 44.2% include an early material blunder (43 games at 600).

At 1000, the Sicilian Defense: Bowdler Attack scores 46.0% for White across 146,640 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 41.1% include an early material blunder (309 games at 1000).

The Sicilian Defense: Bowdler Attack (B20) is a line for White. The main line runs 1. e4 c5 2. Bc4.