P. Prochaska
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| World op | ??/??/1996 | 1326 |  United States |
| World op | 06/??/1995 | 1460 | United States |
| US op | ??/??/1977 | 178 | United States |
Most Played Openings as White
| ECO | Opening | Games |
| D00 | Queen's pawn game | 1 games |
| C18 | French, Winawer, advance variation | 1 games |
| C02 | French, advance variation | 1 games |
| B97 | Sicilian, Najdorf, 7...Qb6 | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| A57 | Benko gambit | 1 games |
| B56 | Sicilian | 1 games |
| A45 | Queen's pawn game | 1 games |
| A65 | Benoni, 6.e4 | 1 games |
