Jonas Ruetjeroth
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Niedersachsen-ch U18 | 03/31/2007 | 1826 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| B01 | Scandinavian (centre counter) defence | 1 games |
| B12 | Caro-Kann defence | 1 games |
| C45 | Scotch game | 1 games |
| B27 | Sicilian defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C01 | French, exchange variation | 1 games |
| D87 | Gruenfeld, exchange, Spassky variation | 1 games |
| C00 | French defence | 1 games |
| C14 | French, classical variation | 1 games |


Germany