Piet Theunissen
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Lommel Summer op | 07/??/2003 | 64 | Belgium |
Most Played Openings as White
| ECO | Opening | Games |
| B23 | Sicilian, closed | 2 games |
| C41 | Philidor's defence | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| C68 | Ruy Lopez, exchange variation | 1 games |
| A56 | Benoni defence | 1 games |
| D55 | Queen's Gambit Declined, 6.Nf3 | 1 games |


Belgium