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Petrov's Defense

C42For BlackSolid

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4

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
42.5%44.4%47.3%44.9%
Band 600, n = 1,421Band 1000, n = 7,866Band 1400, n = 8,106Band 1800, n = 22,949
Blunder rate
pendingpendingpendingpending
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
0.0%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
60053.3%4.2%42.5%--1,421D
100051.1%4.4%44.4%--7,866D
140047.4%5.3%47.3%--8,106C
180048.9%6.1%44.9%--22,949C

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 600

At 600, the Petrov's Defense scores 42.5% for Black across 1,421 games. Most openings score better than this at this level.

1000Your bandD at 1000

At 1000, the Petrov's Defense scores 44.4% for Black across 7,866 games. Most openings score better than this at this level.

1400Your bandC at 1400

At 1400, the Petrov's Defense scores 47.3% for Black across 8,106 games. That is below average at this level.

1800Your bandC at 1800

At 1800, the Petrov's Defense scores 44.9% for Black across 22,949 games. That is below average at this level.

Variations

Where the line goes next.

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

  • BBCCC42

    Petrov's Defense: Cozio Attack

    1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. Qe2

    0.0% of games at 600, n = 7990.0% of games at 1000, n = 4,7990.0% of games at 1400, n = 3,9270.0% of games at 1800, n = 6,274

  • -BBBC42

    Petrov's Defense: Classical Attack

    1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4 5. d4

    0.0% of games at 600, n = 1100.0% of games at 1000, n = 7830.0% of games at 1400, n = 1,3920.0% of games at 1800, n = 7,441

Questions

Common questions about this page.

At 600, the Petrov's Defense scores 42.5% for Black across 1,421 games. Most openings score better than this at this level.

At 1000, the Petrov's Defense scores 44.4% for Black across 7,866 games. Most openings score better than this at this level.

The Petrov's Defense (C42) is a line for Black. The main line runs 1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nf3 Nxe4.