J. Horstmann
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| FRG-ch U26 | ??/??/1988 | 379 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| A12 | English, Caro-Kann defensive system | 1 games |
| E14 | Queen's Indian, 4.e3 | 1 games |
| A06 | Reti opening | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B12 | Caro-Kann defence | 2 games |
| B11 | Caro-Kann, two knights, 3...Bg4 | 1 games |
| B25 | Sicilian, closed | 1 games |


Germany