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 |