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Philidor Defense

C41For BlackSolidLow theory

1. e4 e5 2. Nf3 d6 3. Bc4

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
42.9%45.2%45.8%45.0%
Band 600, n = 42,445Band 1000, n = 211,998Band 1400, n = 152,319Band 1800, n = 198,254
Blunder rate
43.5%56.7%47.2%43.4%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
CCCC
Black, band 600Black, band 1000Black, band 1400Black, band 1800
Share of games
1.0%1.5%1.4%0.9%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60052.9%4.2%42.9%43.5%ply 5.042,445C
100050.8%4.0%45.2%56.7%ply 5.0211,998C
140050.2%4.1%45.8%47.2%ply 5.0152,319C
180050.5%4.5%45.0%43.4%ply 5.0198,254C

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 43.5%, band median 44.6%

At 600, the Philidor Defense scores 42.9% for Black across 42,445 games. That is below average at this level. Games in this line leave known theory around move 3 on average, and 43.5% include an early material blunder (69 games at 600).

1000Your bandC at 1000Blunder rate 56.7%, band median 42.9%

At 1000, the Philidor Defense scores 45.2% for Black across 211,998 games. That is below average at this level. Games in this line leave known theory around move 3 on average, and 56.7% include an early material blunder (356 games at 1000).

1400Your bandC at 1400Blunder rate 47.2%, band median 40.0%

At 1400, the Philidor Defense scores 45.8% for Black across 152,319 games. That is below average at this level. Games in this line leave known theory around move 3 on average, and 47.2% include an early material blunder (267 games at 1400).

1800Your bandC at 1800Blunder rate 43.4%, band median 36.4%

At 1800, the Philidor Defense scores 45.0% for Black across 198,254 games. That is below average at this level. Games in this line leave known theory around move 3 on average, and 43.4% include an early material blunder (265 games at 1800).

Variations

Where the line goes next.

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

  • DBBCC41

    Philidor Defense

    1. e4 e5 2. Nf3 d6 3. Bc4 Be7

    0.0% of games at 600, n = 1,1640.1% of games at 1000, n = 14,5830.2% of games at 1400, n = 20,2280.2% of games at 1800, n = 52,122

Questions

Common questions about this page.

At 600, the Philidor Defense scores 42.9% for Black across 42,445 games. That is below average at this level. Games in this line leave known theory around move 3 on average, and 43.5% include an early material blunder (69 games at 600).

At 1000, the Philidor Defense scores 45.2% for Black across 211,998 games. That is below average at this level. Games in this line leave known theory around move 3 on average, and 56.7% include an early material blunder (356 games at 1000).

The Philidor Defense (C41) is a line for Black. The main line runs 1. e4 e5 2. Nf3 d6 3. Bc4.