S. Pielaet
Last tournaments played
| Tournament | Date | Elo Avg. | Country |
| Naleczow op | 07/??/1987 | 1858 | Poland |
| Alkmaar op-B | ??/??/1984 | 0 | Netherlands |
| Alkmaar op-B | ??/??/1983 | 0 | Netherlands |
Most Played Openings as White
| ECO | Opening | Games |
| C25 | Vienna game | 1 games |
| A01 | Nimzovich-Larsen attack | 1 games |
Most Played Openings as Black
| ECO | Opening | Games |
| B01 | Scandinavian (centre counter) defence | 3 games |
| A51 | Budapest defence declined | 1 games |
| A87 | Dutch, Leningrad, main variation | 1 games |
| A44 | Old Benoni defence | 1 games |


Poland
Netherlands