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Petrov's Defense

C42For BlackSolid

1. e4 e5 2. Nf3 Nf6 3. Nxe5 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
42.2%45.0%47.3%45.2%
Band 600, n = 4,271Band 1000, n = 12,701Band 1400, n = 10,841Band 1800, n = 28,143
Blunder rate
40.0%47.6%38.9%28.9%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
DDCC
Black, band 600Black, band 1000Black, band 1400Black, band 1800
Share of games
0.1%0.1%0.1%0.1%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60052.9%4.9%42.2%40.0%ply 6.84,271D
100050.8%4.2%45.0%47.6%ply 7.612,701D
140047.9%4.8%47.3%38.9%ply 8.310,841C
180049.1%5.8%45.2%28.9%ply 8.328,143C

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 40.0%, band median 44.6%

At 600, the Petrov's Defense scores 42.2% for Black across 4,271 games. Most openings score better than this at this level. Games in this line leave known theory around move 4 on average, and 40.0% include an early material blunder (5 games at 600).

1000Your bandD at 1000Blunder rate 47.6%, band median 42.9%

At 1000, the Petrov's Defense scores 45.0% for Black across 12,701 games. Most openings score better than this at this level. Games in this line leave known theory around move 4 on average, and 47.6% include an early material blunder (21 games at 1000).

1400Your bandC at 1400Blunder rate 38.9%, band median 40.0%

At 1400, the Petrov's Defense scores 47.3% for Black across 10,841 games. That is below average at this level. Games in this line leave known theory around move 5 on average, and 38.9% include an early material blunder (18 games at 1400).

1800Your bandC at 1800Blunder rate 28.9%, band median 36.4%

At 1800, the Petrov's Defense scores 45.2% for Black across 28,143 games. That is below average at this level. Games in this line leave known theory around move 5 on average, and 28.9% include an early material blunder (52 games at 1800).

Questions

Common questions about this page.

At 600, the Petrov's Defense scores 42.2% for Black across 4,271 games. Most openings score better than this at this level. Games in this line leave known theory around move 4 on average, and 40.0% include an early material blunder (5 games at 600).

At 1000, the Petrov's Defense scores 45.0% for Black across 12,701 games. Most openings score better than this at this level. Games in this line leave known theory around move 4 on average, and 47.6% include an early material blunder (21 games at 1000).

The Petrov's Defense (C42) is a line for Black. The main line runs 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6.