Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1942 |
925 |
2036 | (72) | 9 |
| 1943 |
849 |
2052 | (73) | 0 |
| 1944 |
818 |
2067 | (73) | 0 |
| 1945 |
797 |
2083 | (70) | 0 |
| 1946 |
745 |
2098 | (65) | 13 |
Rating table notes
|
| Biographical data |
| Name: Koesler |
| Born: |
| Died: |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1941-1946, page 347 |
| |
