Koehler
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| NRW-ch | ??/??/1997 | 2015 | Germany |
| OWL-ch | ??/??/1952 | 0 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| B33 | Sicilian defence | 2 games |
| B80 | Sicilian, Scheveningen variation | 1 games |
| C41 | Philidor's defence | 1 games |
| D94 | Gruenfeld, 5.e3 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C10 | French, Paulsen variation | 2 games |
| B34 | Sicilian, accelerated fianchetto, exchange variation | 1 games |
| A48 | King's Indian, East Indian defence | 1 games |
| A37 | English, symmetrical variation | 1 games |


Germany