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Ruy LopezMorphy Defense

C70For BlackSolid

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6

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%43.2%44.1%44.7%
Band 600, n = 15,381Band 1000, n = 67,840Band 1400, n = 44,765Band 1800, n = 101,491
Blunder rate
28.6%52.7%25.0%18.6%
Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
Tier
CDCB
Black, band 600Black, band 1000Black, band 1400Black, band 1800
Share of games
0.4%0.5%0.4%0.5%
Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
Every band, source period 2026-05
BandWhiteDrawBlackBlunderBook exitGamesTier
60052.6%4.9%42.5%28.6%ply 7.015,381C
100052.8%4.1%43.2%52.7%ply 7.067,840D
140051.7%4.2%44.1%25.0%ply 6.944,765C
180050.5%4.8%44.7%18.6%ply 7.0101,491B

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 28.6%, band median 44.6%

At 600, the Ruy Lopez: Morphy Defense scores 42.5% for Black across 15,381 games. That is below average at this level. Games in this line leave known theory around move 4 on average, and 28.6% include an early material blunder (7 games at 600).

1000Your bandD at 1000Blunder rate 52.7%, band median 42.9%

At 1000, the Ruy Lopez: Morphy Defense scores 43.2% for Black across 67,840 games. Most openings score better than this at this level. Games in this line leave known theory around move 4 on average, and 52.7% include an early material blunder (55 games at 1000).

1400Your bandC at 1400Blunder rate 25.0%, band median 40.0%

At 1400, the Ruy Lopez: Morphy Defense scores 44.1% for Black across 44,765 games. That is below average at this level. Games in this line leave known theory around move 4 on average, and 25.0% include an early material blunder (44 games at 1400).

1800Your bandB at 1800Blunder rate 18.6%, band median 36.4%

At 1800, the Ruy Lopez: Morphy Defense scores 44.7% for Black across 101,491 games. That is close to the average at this level. Games in this line leave known theory around move 4 on average, and 18.6% include an early material blunder (140 games at 1800).

Variations

Where the line goes next.

The lines that continue the Ruy Lopez: Morphy Defense, most played first at your band. Switch the band in the header and both the figures and the order follow.

  • CCCCC68

    Ruy Lopez: Exchange Variation

    1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6

    0.2% of games at 600, n = 9,5590.3% of games at 1000, n = 39,4390.2% of games at 1400, n = 20,4690.1% of games at 1800, n = 30,792

  • -DCDC71

    Ruy Lopez: Morphy Defense, Modern Steinitz Defense

    1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6

    0.0% of games at 600, n = 1630.0% of games at 1000, n = 1,4780.0% of games at 1400, n = 2,0750.0% of games at 1800, n = 7,490

Questions

Common questions about this page.

At 600, the Ruy Lopez: Morphy Defense scores 42.5% for Black across 15,381 games. That is below average at this level. Games in this line leave known theory around move 4 on average, and 28.6% include an early material blunder (7 games at 600).

At 1000, the Ruy Lopez: Morphy Defense scores 43.2% for Black across 67,840 games. Most openings score better than this at this level. Games in this line leave known theory around move 4 on average, and 52.7% include an early material blunder (55 games at 1000).

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