Jonas Bonus
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Troisdorf op | 11/02/2004 | 1638 | Germany |
| Troisdorf op | 10/14/2003 | 1575 | Germany |
| Troisdorf op | ??/??/1999 | 277 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| B23 | Sicilian, closed | 1 games |
| C65 | Ruy Lopez, Berlin defence | 1 games |
| B30 | Sicilian defence | 1 games |
| A00 | Polish (Sokolsky) opening | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C55 | Two knights defence | 2 games |
| C36 | King's Gambit Accepted, Abbazia defence (classical defence, modern defence[!]) | 1 games |
| C41 | Philidor's defence | 1 games |
| C62 | Ruy Lopez, old Steinitz defence | 1 games |


Germany