Jonas Klesen
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| GER-ch U10 | 05/26/2007 | 1136 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| B50 | Sicilian | 2 games |
| C50 | King's pawn game | 2 games |
| C55 | Two knights defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C50 | King's pawn game | 2 games |
| A45 | Queen's pawn game | 1 games |
| C27 | Vienna game | 1 games |
| C42 | Petrov's defence | 1 games |


Germany