Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1942 |
981 |
2039 | (72) | 9 |
| 1943 |
915 |
2055 | (73) | 0 |
| 1944 |
890 |
2070 | (73) | 0 |
| 1945 |
881 |
2086 | (70) | 0 |
| 1946 |
827 |
2101 | (65) | 13 |
Rating table notes
|
| Biographical data |
| Name: Koesler |
| Born: |
| Died: |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1941-1946, page 347 |
| |
