Quebec-ch
Montreal 1973
| Date | Players | Type | Elo Average | Games | Rounds |
| 1973 | 6 | Swiss | 7 | 5 |
| Name | ELO | Points | ||
|
IM Piasetski, Leon | 4.0 | ||
|
Williams, Leo | 1.5 | ||
| Labelle, Jacques | 1.5 | |||
| Engalicev, Nicolas | 0.0 | |||
| Boileau, Doug | 0.0 | |||
| Johnston, Murray | 0.0 | |||
Quebec-ch Games
| White | Black | Result | Round | Date | Opening | View |
| Piasetski, L | Engalicev, N | 1-0  |
1 | 1973 | C13 French, classical |   |
| Williams, L | Boileau, D | 1-0 |
1 | 1973 | D46 Queen's Gambit Declined semi-Slav, 6.Bd3 |   |
| Johnston, M | Piasetski, L | 0-1 |
2 | 1973 | A22 English opening | |
| Labelle, J | Williams, L | ½-½ |
2 | 1973 | B44 Sicilian defence | |
| Piasetski, L | Boileau, D | 1-0 |
3 | 1973 | B21 Sicilian, Grand Prix attack | |
| Boileau, D | Labelle, J | 0-1 |
5 | 1973 | B98 Sicilian, Najdorf, 7...Be7 | |
| Piasetski, L | Williams, L | 1-0 |
5 | 1973 | B09 Pirc, Austrian attack | |