4 / 4
  1. 1.
  2. 2.

Click a move, or focus the board and use the arrow keys.

Philidor Defense

C41For BlackSolidLow theory

1. e4 e5 2. Nf3 d6

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
43.5%45.0%45.5%44.4%
Band 600, n = 106,766Band 1000, n = 451,204Band 1400, n = 326,807Band 1800, n = 443,787
Blunder rate
52.7%42.1%37.7%33.3%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
CCBC
Black, band 600Black, band 1000Black, band 1400Black, band 1800
Share of games
2.5%3.2%3.0%2.1%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60051.9%4.6%43.5%52.7%ply 4.0106,766C
100050.8%4.2%45.0%42.1%ply 4.0451,204C
140050.3%4.2%45.5%37.7%ply 4.0326,807B
180050.9%4.7%44.4%33.3%ply 4.0443,787C

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 52.7%, band median 44.6%

At 600, the Philidor Defense scores 43.5% for Black across 106,766 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 52.7% include an early material blunder (74 games at 600).

1000Your bandC at 1000Blunder rate 42.1%, band median 42.9%

At 1000, the Philidor Defense scores 45.0% for Black across 451,204 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 42.1% include an early material blunder (273 games at 1000).

1400Your bandB at 1400Blunder rate 37.7%, band median 40.0%

At 1400, the Philidor Defense scores 45.5% for Black across 326,807 games. That is close to the average at this level. Games in this line leave known theory around move 2 on average, and 37.7% include an early material blunder (167 games at 1400).

1800Your bandC at 1800Blunder rate 33.3%, band median 36.4%

At 1800, the Philidor Defense scores 44.4% for Black across 443,787 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 33.3% include an early material blunder (195 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.

  • CCCCC41

    Philidor Defense

    1. e4 e5 2. Nf3 d6 3. Bc4

    1.0% of games at 600, n = 42,4451.5% of games at 1000, n = 211,9981.4% of games at 1400, n = 152,3190.9% of games at 1800, n = 198,254

  • CCCCC41

    Philidor Defense

    1. e4 e5 2. Nf3 d6 3. d4

    0.6% of games at 600, n = 25,0120.9% of games at 1000, n = 121,5860.9% of games at 1400, n = 101,0520.8% of games at 1800, n = 166,111

Questions

Common questions about this page.

At 600, the Philidor Defense scores 43.5% for Black across 106,766 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 52.7% include an early material blunder (74 games at 600).

At 1000, the Philidor Defense scores 45.0% for Black across 451,204 games. That is below average at this level. Games in this line leave known theory around move 2 on average, and 42.1% include an early material blunder (273 games at 1000).

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