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English OpeningAgincourt Defense

A13For BlackSolid

1. c4 e6

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
47.6%45.4%45.3%45.3%
Band 600, n = 3,483Band 1000, n = 21,378Band 1400, n = 25,235Band 1800, n = 78,316
Blunder rate
22.2%37.0%21.1%24.1%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
BCCC
Black, band 600Black, band 1000Black, band 1400Black, band 1800
Share of games
0.1%0.2%0.2%0.4%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60048.4%4.0%47.6%22.2%ply 2.03,483B
100051.0%3.6%45.4%37.0%ply 2.021,378C
140050.9%3.8%45.3%21.1%ply 2.025,235C
180049.9%4.8%45.3%24.1%ply 2.078,316C

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 bandB at 600Blunder rate 22.2%, band median 44.6%

At 600, the English Opening: Agincourt Defense scores 47.6% for Black across 3,483 games. That is close to the average at this level. Games in this line leave known theory around move 1 on average, and 22.2% include an early material blunder (9 games at 600).

1000Your bandC at 1000Blunder rate 37.0%, band median 42.9%

At 1000, the English Opening: Agincourt Defense scores 45.4% for Black across 21,378 games. That is below average at this level. Games in this line leave known theory around move 1 on average, and 37.0% include an early material blunder (27 games at 1000).

1400Your bandC at 1400Blunder rate 21.1%, band median 40.0%

At 1400, the English Opening: Agincourt Defense scores 45.3% for Black across 25,235 games. That is below average at this level. Games in this line leave known theory around move 1 on average, and 21.1% include an early material blunder (38 games at 1400).

1800Your bandC at 1800Blunder rate 24.1%, band median 36.4%

At 1800, the English Opening: Agincourt Defense scores 45.3% for Black across 78,316 games. That is below average at this level. Games in this line leave known theory around move 1 on average, and 24.1% include an early material blunder (170 games at 1800).

Questions

Common questions about this page.

At 600, the English Opening: Agincourt Defense scores 47.6% for Black across 3,483 games. That is close to the average at this level. Games in this line leave known theory around move 1 on average, and 22.2% include an early material blunder (9 games at 600).

At 1000, the English Opening: Agincourt Defense scores 45.4% for Black across 21,378 games. That is below average at this level. Games in this line leave known theory around move 1 on average, and 37.0% include an early material blunder (27 games at 1000).

The English Opening: Agincourt Defense (A13) is a line for Black. The main line runs 1. c4 e6.