P. Ziswiler
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| SUI-ch op | ??/??/1994 | 1987 | Switzerland |
Most Played Openings as White
| ECO | Opening | Games |
| B12 | Caro-Kann defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| D79 | Neo-Gruenfeld, 6.O-O, main line | 1 games |
| B02 | Alekhine's defence | 1 games |


Switzerland