Jonas Oktavio Artmann
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Sued NDS-ch U10/12 | 10/27/1999 | 0 | Germany |
| Unterfranken-ch | ??/??/1992 | 216 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| C47 | Four knights, Scotch variation | 1 games |
| C42 | Petrov's defence | 1 games |
| B01 | Scandinavian (centre counter) defence | 1 games |
| C28 | Vienna game | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C50 | King's pawn game | 1 games |
| C47 | Four knights, Scotch variation | 1 games |
| A10 | English opening | 1 games |
| A85 | Dutch with c4 & Nc3 | 1 games |


Germany