Walter Preiswerk
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Geneve sim | ??/??/1925 | 0 |  Switzerland |
| Berlin CL | ??/??/1920 | 0 |  Germany |
| Zuerich sim | ??/??/1916 | 0 | Switzerland |
| Hamburg Hauptturnier-B | ??/??/1910 | 0 | Germany |
Most Played Openings as White
| ECO | Opening | Games |
| C48 | Four knights, Spanish variation | 1 games |
| C90 | Ruy Lopez, closed (with ...d6) | 1 games |
| C54 | Giuoco Piano | 1 games |
| C68 | Ruy Lopez, exchange variation | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C30 | King's gambit | 1 games |
| C83 | Ruy Lopez, open, classical defence | 1 games |
| C02 | French, advance variation | 1 games |
| D33 | Queen's Gambit Declined, Tarrasch, Schlechter-Rubinstein system | 1 games |
