J. Zahner
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Zuerich op2 | ??/??/1991 | 130 |  Switzerland |
| Zuerich op2 | 12/??/1990 | 58 | Switzerland |
Most Played Openings as White
| ECO | Opening | Games |
| D32 | Queen's Gambit Declined, Tarrasch defence | 1 games |
| A29 | English, four knights, kingside fianchetto | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B17 | Caro-Kann, Steinitz variation | 1 games |
