Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1947 |
758 |
1938 | (105) | 10 |
Rating table notes
|
| Biographical data |
| Name: Clausen (1) |
| Born: |
| Died: |
| |
| Notes: |
| Is this Sigurd Clausen, or A. Clausen, or Viggo Klausen, or another? |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1947-1950, page 455 |
| |
