Ruben, Karl

Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1927 |
100 |
2382 | (40) | 29 |
| 1928 |
150 |
2360 | (38) | 22 |
| 1929 |
197 |
2338 | (44) | 1 |
| 1930 |
228 |
2321 | (40) | 23 |
| 1931 |
313 |
2291 | (44) | 14 |
| 1932 |
354 |
2275 | (56) | 0 |
| 1933 |
420 |
2259 | (61) | 7 |
Rating table notes
|
| Biographical data |
| Name: Ruben, Karl |
| Born: 4 Aug. 1903 |
| Died: 28 Oct. 1938 |
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| References |
| Books |
| Di Felice, Chess Results, 1921-1930, page 336 |
| Di Felice, Chess Results, 1931-1935, page 401 |
| Gaige, Chess Personalia, page 364 |
| McGowan, Kurt Richter, page 187 |
| Skinner and Verhoeven, Alexander Alekhine's Chess Games, page 378 |
| Thulin, Name index to CTC, page 226 |
| |
Match data (f=formal; c=casual; s=soft)
Tournament data
| Player information updated: 12 Apr. 2025 |
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