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St. George Defense

B00For Black

1. e4 a6

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
40.7%45.1%46.3%46.9%
Band 600, n = 5,629Band 1000, n = 25,428Band 1400, n = 19,654Band 1800, n = 29,574
Blunder rate
28.6%32.1%48.7%20.3%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
DCCB
Black, band 600Black, band 1000Black, band 1400Black, band 1800
Share of games
0.1%0.2%0.2%0.1%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60054.1%5.2%40.7%28.6%ply 2.05,629D
100051.4%3.5%45.1%32.1%ply 2.025,428C
140050.2%3.6%46.3%48.7%ply 2.019,654C
180049.2%4.0%46.9%20.3%ply 2.029,574B

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 bandD at 600Blunder rate 28.6%, band median 44.6%

At 600, the St. George Defense scores 40.7% for Black across 5,629 games. Most openings score better than this at this level. Games in this line leave known theory around move 1 on average, and 28.6% include an early material blunder (7 games at 600).

1000Your bandC at 1000Blunder rate 32.1%, band median 42.9%

At 1000, the St. George Defense scores 45.1% for Black across 25,428 games. That is below average at this level. Games in this line leave known theory around move 1 on average, and 32.1% include an early material blunder (56 games at 1000).

1400Your bandC at 1400Blunder rate 48.7%, band median 40.0%

At 1400, the St. George Defense scores 46.3% for Black across 19,654 games. That is below average at this level. Games in this line leave known theory around move 1 on average, and 48.7% include an early material blunder (37 games at 1400).

1800Your bandB at 1800Blunder rate 20.3%, band median 36.4%

At 1800, the St. George Defense scores 46.9% for Black across 29,574 games. That is close to the average at this level. Games in this line leave known theory around move 1 on average, and 20.3% include an early material blunder (69 games at 1800).

Questions

Common questions about this page.

At 600, the St. George Defense scores 40.7% for Black across 5,629 games. Most openings score better than this at this level. Games in this line leave known theory around move 1 on average, and 28.6% include an early material blunder (7 games at 600).

At 1000, the St. George Defense scores 45.1% for Black across 25,428 games. That is below average at this level. Games in this line leave known theory around move 1 on average, and 32.1% include an early material blunder (56 games at 1000).

The St. George Defense (B00) is a line for Black. The main line runs 1. e4 a6.