Computer Composition Searches
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A computer can be a useful tool to search for compositions, yet even with today's fast processors exhausting many composition searches is too big a task. This page has been created to keep a record of searches people have successfully completed in popular methods. If you have completely exhausted a computer search for compositions, please add an entry to the table below, stating any constraints you applied to the search, when you first ran it, and any other information you think would be of interest.
Exhausted Composition Searches
| Method | Search Constraints | Results | Time/ Computer/ Program |
Date | Run by | Notes |
|---|---|---|---|---|---|---|
| Cambridge Surprise Major | >=5000 changes Tenors together Round blocks Bob = 14, Single = 1234 |
9,997 compositions 255,138 rotations |
9 days P90 PC SMC |
1995 | Graham John | See http://www.changeringing.co.uk/cambridgefm.htm |
| Cambridge Surprise Major | >=5000 changes Tenors together Snap finishes Bob = 14, Single = 1234 |
15,416 compositions | 13 days PC SMC32 |
1998 | Graham John | See http://www.changeringing.co.uk/cambridgefm.htm |
| Bristol Surprise Maximus | 5000-5100 changes Tenors together Round blocks Bob = 14, Single = 1234 |
202,384,361 compositions | 47 hours PC SMC32 |
1998 | Mark Davies | |
| Yorkshire Surprise Maximus | 5000-5100 changes Tenors together Round blocks Bob = 14, Single = 1234, Big Bob=18 |
202,927,179 compositions | 5 days, 23 hours PC SMC32 |
1998 | Mark Davies |
