Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1920 |
561 |
2130 | (78) | 14 |
Rating table notes
|
| Biographical data |
| Name: de Koning, Josef J.M. |
| Born: 17 Nov. 1887 |
| Died: 23 Oct. 1925 |
| |
| Notes: |
| Gaige has date of death as '23?-10-1925'. |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1901-1920, page 261 |
| Gaige, Chess Personalia, page 88, 221 |
| |
