1976–77 | Puzzles | Summary | — | Solvers | Dinner | |
1977–78 | Puzzles | Summary | — | Solvers | Dinner | |
1978–79 | Puzzles | Summary | Errors | Solvers | Dinner | Dinner (2500) |
1979–80 | Puzzles | Summary | Errors | — | Dinner | |
1980–81 | Puzzles | Summary | Errors | Solvers | — | |
1981–82 | Puzzles | Summary | Errors | Solvers | — | |
1982–83 | Puzzles | Summary | Errors | Solvers | — | |
1983–84 | Puzzles | Summary | Errors | Solvers | Dinner | |
1984–85 | Puzzles | Summary | Errors | Solvers | — | |
1985–86 | Puzzles | Summary | Errors | Solvers | — | |
1986–87 | Puzzles | Summary | Errors | — | — | |
1987–88 | Puzzles | Summary | Errors | Solvers | Dinner | |
1988–89 | Puzzles | Summary | Errors | Solvers | Dinner | Addresses |
1989–90 | Puzzles | Summary | Errors | — | Dinner | |
1990 | Puzzles | Summary | Errors | Solvers | — | Setters |