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Petrov's DefenseThree Knights Game

C42For WhiteSolid

1. e4 e5 2. Nf3 Nf6 3. Nc3

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
52.7%51.4%50.1%49.2%
Band 600, n = 72,984Band 1000, n = 154,188Band 1400, n = 88,760Band 1800, n = 124,511
Blunder rate
44.9%46.0%55.7%52.3%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
ABCC
White, band 600White, band 1000White, band 1400White, band 1800
Share of games
1.7%1.1%0.8%0.6%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60052.7%5.0%42.4%44.9%ply 5.072,984A
100051.4%3.8%44.7%46.0%ply 5.0154,188B
140050.1%4.0%46.0%55.7%ply 5.088,760C
180049.2%4.7%46.1%52.3%ply 5.0124,511C

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 bandA at 600Blunder rate 44.9%, band median 44.6%

At 600, the Petrov's Defense: Three Knights Game scores 52.7% for White across 72,984 games. That is comfortably above average at this level. Games in this line leave known theory around move 3 on average, and 44.9% include an early material blunder (98 games at 600).

1000Your bandB at 1000Blunder rate 46.0%, band median 42.9%

At 1000, the Petrov's Defense: Three Knights Game scores 51.4% for White across 154,188 games. That is close to the average at this level. Games in this line leave known theory around move 3 on average, and 46.0% include an early material blunder (202 games at 1000).

1400Your bandC at 1400Blunder rate 55.7%, band median 40.0%

At 1400, the Petrov's Defense: Three Knights Game scores 50.1% for White across 88,760 games. That is below average at this level. Games in this line leave known theory around move 3 on average, and 55.7% include an early material blunder (131 games at 1400).

1800Your bandC at 1800Blunder rate 52.3%, band median 36.4%

At 1800, the Petrov's Defense: Three Knights Game scores 49.2% for White across 124,511 games. That is below average at this level. Games in this line leave known theory around move 3 on average, and 52.3% include an early material blunder (195 games at 1800).

Questions

Common questions about this page.

At 600, the Petrov's Defense: Three Knights Game scores 52.7% for White across 72,984 games. That is comfortably above average at this level. Games in this line leave known theory around move 3 on average, and 44.9% include an early material blunder (98 games at 600).

At 1000, the Petrov's Defense: Three Knights Game scores 51.4% for White across 154,188 games. That is close to the average at this level. Games in this line leave known theory around move 3 on average, and 46.0% include an early material blunder (202 games at 1000).

The Petrov's Defense: Three Knights Game (C42) is a line for White. The main line runs 1. e4 e5 2. Nf3 Nf6 3. Nc3.