600Your band
At 600, the Ruy Lopez: Morphy Defense, Modern Steinitz Defense scores 42.3% for Black across 163 games. The sample at 600 is too small to grade honestly.
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Ruy LopezMorphy Defense, Modern Steinitz Defense
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 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
- 42.3%43.6%45.2%45.8%
- Band 600, n = 163Band 1000, n = 1,478Band 1400, n = 2,075Band 1800, n = 7,490
- Blunder rate
- pending33.3%0.0%47.1%
- Band median 44.6%Band median 42.9%Band median 40.0%Band median 36.4%
- Tier
- -DCD
- Black, band 600Black, band 1000Black, band 1400Black, band 1800
- Share of games
- 0.0%0.0%0.0%0.0%
- Of band 600 gamesOf band 1000 gamesOf band 1400 gamesOf band 1800 games
| Band | White | Draw | Black | Blunder | Book exit | Games | Tier |
|---|---|---|---|---|---|---|---|
| 600 | 51.5% | 6.1% | 42.3% | - | - | 163 | - |
| 1000 | 52.8% | 3.6% | 43.6% | 33.3% | ply 8.0 | 1,478 | D |
| 1400 | 50.6% | 4.2% | 45.2% | 0.0% | ply 9.5 | 2,075 | C |
| 1800 | 49.3% | 5.0% | 45.8% | 47.1% | ply 8.8 | 7,490 | D |
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.
1000Your bandD at 1000Blunder rate 33.3%, band median 42.9%
At 1000, the Ruy Lopez: Morphy Defense, Modern Steinitz Defense scores 43.6% for Black across 1,478 games. Most openings score better than this at this level. Games in this line leave known theory around move 4 on average, and 33.3% include an early material blunder (3 games at 1000).
1400Your bandC at 1400Blunder rate 0.0%, band median 40.0%
At 1400, the Ruy Lopez: Morphy Defense, Modern Steinitz Defense scores 45.2% for Black across 2,075 games. That is below average at this level. Games in this line leave known theory around move 5 on average, and 0.0% include an early material blunder (2 games at 1400).
1800Your bandD at 1800Blunder rate 47.1%, band median 36.4%
At 1800, the Ruy Lopez: Morphy Defense, Modern Steinitz Defense scores 45.8% for Black across 7,490 games. Most openings score better than this at this level. Games in this line leave known theory around move 5 on average, and 47.1% include an early material blunder (17 games at 1800).
Blunders and traps
How this opening ends early.
The known traps that live inside the Ruy Lopez: Morphy Defense, Modern Steinitz Defense. The rates are how often each one actually lands in your band, counted against every sampled game in that band.
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Noah's Ark Trap
1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. d4 b5 6. Bb3 Nxd4 7. Nxd4 exd4 8. Qxd4
Sprung by Black. The move that invites it is Qxd4.
After 8. Qxd4 c5 the pawn wave c5-c4 buries the b3 bishop; the queen checks in the line shown only delay it. The saving idea came earlier: 8. Bd5 first, hitting the a8 rook, and only then recapturing on d4.
0 hitsBand 600
0 hitsBand 1000
0 hitsBand 1400
1 in 40,539Band 1800
Read as: how often this trap line is completed per sampled game in the band.
How the Blunder Rate is measured. A material swing of three points or more inside the first 24 half-moves after leaving book, detected without an engine evaluation. It is a proxy for how sharp a position is in practice, not an engine verdict, and it is computed from a monthly game sample rather than the full corpus behind the win rates. Trap hit rates count a trap only when its full line is completed on the board.
Questions
Common questions about this page.
At 600, the Ruy Lopez: Morphy Defense, Modern Steinitz Defense scores 42.3% for Black across 163 games. The sample at 600 is too small to grade honestly.
At 1000, the Ruy Lopez: Morphy Defense, Modern Steinitz Defense scores 43.6% for Black across 1,478 games. Most openings score better than this at this level. Games in this line leave known theory around move 4 on average, and 33.3% include an early material blunder (3 games at 1000).
The Ruy Lopez: Morphy Defense, Modern Steinitz Defense (C71) is a line for Black. The main line runs 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6.