Ratings
| Year |
Rank |
Edo |
Dev. |
Games |
| 1902 |
202 |
2270 | (37) | 50 |
| 1903 |
206 |
2271 | (52) | 0 |
| 1904 |
216 |
2273 | (60) | 0 |
| 1905 |
224 |
2274 | (64) | 9 |
| 1906 |
232 |
2270 | (74) | 0 |
| 1907 |
249 |
2267 | (81) | 0 |
| 1908 |
257 |
2264 | (86) | 0 |
| 1909 |
273 |
2261 | (90) | 0 |
| 1910 |
269 |
2257 | (93) | 0 |
| 1911 |
293 |
2254 | (95) | 0 |
| 1912 |
291 |
2251 | (96) | 0 |
| 1913 |
304 |
2248 | (96) | 0 |
| 1914 |
293 |
2244 | (96) | 6 |
Rating table notes
|
| Biographical data |
| Name: Piotrowski, Oskar |
| Born: |
| Died: |
| |
| Notes: |
| The Berliner Schachverband website has 'Pietrowski', but on it's Café Kerkau page, Hoppe suggests that 'O. Piotrowski' is correct. |
|
| |
| References |
| Books |
| Di Felice, Chess Results, 1901-1920, page 313 |
| Thulin, Name index to CTC, page 203, 204 |
| Web |
| Hoppe, Frank. [Chronik des Jahres 1902] (broken) |
| Hoppe, Frank. [Freies Turnier im Café Kerkau] (broken) |
| Lissowski, Tomasz. [Szachiści a Sprawa Niepodległości Polski] |
| |
