Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1938 |
1347 |
1974 | (75) | 14 |
| 1939 |
1173 |
1984 | (80) | 0 |
| 1940 |
977 |
1995 | (83) | 0 |
| 1941 |
896 |
2005 | (86) | 0 |
| 1942 |
782 |
2015 | (87) | 0 |
| 1943 |
700 |
2025 | (86) | 9 |
Rating table notes
|
| Biographical data |
| Name: Silberberg, Rolf |
| Also known as: R. Silverberg; Ralph Spencer; Ralph Michel |
| Born: 15 Aug. 1918 |
| Died: 1983 |
| |
| Notes: |
| Di Felice has 'Silberberg, F.' at Paris 1938; McGowan has Rolf Silberberg (a.k.a. Ralph Spencer). |
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| References |
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