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Ruy LopezMorphy Defense, Caro Variation

C70For BlackSolid

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5

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
40.6%39.8%40.8%41.8%
Band 600, n = 2,977Band 1000, n = 14,211Band 1400, n = 9,612Band 1800, n = 17,772
Blunder rate
pendingpendingpendingpending
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
DDDD
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
60056.2%3.2%40.6%--2,977D
100057.0%3.3%39.8%--14,211D
140056.0%3.3%40.8%--9,612D
180054.2%4.0%41.8%--17,772D

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 Ruy Lopez: Morphy Defense, Caro Variation scores 40.6% for Black across 2,977 games. Most openings score better than this at this level.

1000Your bandD at 1000

At 1000, the Ruy Lopez: Morphy Defense, Caro Variation scores 39.8% for Black across 14,211 games. Most openings score better than this at this level.

1400Your bandD at 1400

At 1400, the Ruy Lopez: Morphy Defense, Caro Variation scores 40.8% for Black across 9,612 games. Most openings score better than this at this level.

1800Your bandD at 1800

At 1800, the Ruy Lopez: Morphy Defense, Caro Variation scores 41.8% for Black across 17,772 games. Most openings score better than this at this level.

Questions

Common questions about this page.

At 600, the Ruy Lopez: Morphy Defense, Caro Variation scores 40.6% for Black across 2,977 games. Most openings score better than this at this level.

At 1000, the Ruy Lopez: Morphy Defense, Caro Variation scores 39.8% for Black across 14,211 games. Most openings score better than this at this level.

The Ruy Lopez: Morphy Defense, Caro Variation (C70) is a line for Black. The main line runs 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 b5.