[r-t] Peals of Grandsire Triples without singles
    Robert Bennett 
    rbennett at woosh.co.nz
       
    Sun May 15 02:09:25 UTC 2011
    
    
  
 
    
Peals of Grandsire Triples without singles 
By using 5ths place bobs (Hics) as well as normal bobs, William Shipway
produced a peal of Grandsire with triple changes only (no doubles or
singles). His peal uses a composite Q set of (Bob, Hic) x 5, making a 10
course block. The other 62 courses can be joined to this with bobbed
Q-sets. Shipway cunningly used the bobbed Q-sets of Holt's 10-part to do
this. 
Jasper Snowdon in “Variation and Transposition” claimed that at least
5 Hics would be required, and that therefore only 5 should be allowed in a
peal composition! It is however possible to produce peals with only 2 Hics,
using a composite Q set of (Bob, Bob, Hic) x 2, making an 6-course block to
which the other 66 courses can be joined with bobbed Q sets.  
A Peal of Grandsire Triples 
using 119 bobs and 2 fifths place bobs (Hics)only: 
234567 
-462375 3 
-534762 1 
Hic576234 1 
-425376 1 
-764532 2 
-437625 3 
-564237 1 
-375426 2 
-263547 2 
-472356 2 
-634572 1 
-346572 4 
-463572 4 
-724356 2 
-567432 2 
-735624 3 
-527346 3 
-325674 5 
-463725 1 
-324657 3 
-763524 1 
-327645 3 
-623574 5 
-526437 5 
-265437 4 
-462753 5 
-374562 1 
-623457 2 
-426735 5 
-724563 5 
-637452 2 
-376452 4 
-473265 5 
-274536 5 
-362457 2 
-573246 2 
-625473 1 
-256473 4 
-452367 5 
-674235 2 
-526374 1 
-265374 4 
-572643 3 
-245736 3 
-742653 5 
-367542 1 
-423756 2 
-564372 2 
-235764 1 
-732456 5 
-567243 2 
-325467 1 
-563274 3 
-425763 1 
Hic476325 1 
-534276 1 
-765423 2 
-527634 3 
-735246 3 
-467523 2 
-724635 3 
-437256 3 
-234675 5 
-562734 1 
-235647 3 
-762435 1 
-237654 3 
-632475 5 
-436527 5 
-364527 4 
-563742 5 
-275463 1 
-632547 2 
-536724 5 
-735462 5 
-627543 2 
-276543 4 
-572364 5 
-265743 3 
-432576 2 
-534627 5 
-765234 1 
-657234 4 
-426357 1 
-264357 4 
-362745 5 
-623745 4 
-726534 5 
-527463 5 
-635742 2 
-736254 5 
-237465 5 
-762354 3 
-437562 1 
-624753 2 
-726345 5 
-327564 5 
-523476 5 
-425637 5 
-764325 1 
-647325 4 
-536247 1 
-365247 4 
-263754 5 
-632754 4 
-736425 5 
-367425 4 
-543267 1 
-675324 2 
-436275 1 
-364275 4 
-473652 3 
-354726 3 
-753642 5 
-267453 1 
-532746 2 
-465273 2 
-324765 1 
-723546 5 
-467352 2 
-234567 1 
Robert H.Bennett 
1992. 
Except for one Q set of 5 bobs, the peal is in two equal parts. 
I doubt that an exact two-part is possible, but a palindromic two part
like Holt's 10-part peal may be possible.  
A Peal of Grandsire Triples 
using 99 bobs and 2 fifths place bobs only: 
234567 
Hic263475 -3 
632475 -4 
756243 -2 
257364 -5 
642735 -2 
746523 -5 
237654 -2 
462537 -1 
564723 -5 
Hic563742 -5 
275463 -1 
472356 -5 
374625 -5 
673542 -5 
346725 -3 
743562 -5 
547236 -5 
245673 -5 
732564 -2 
457632 -1 
654273 -5 
256347 -5 
352764 -5 
753426 -5 
267345 -2 
532467 -1 
435726 -5 
734652 -5 
637245 -5 
236574 -5 
742653 -2 
257436 -3 
642357 -1 
576234 -2 
765234 -4 
347526 -2 
543672 -5 
435672 -4 
574326 -3 
375642 -5 
673254 -5 
356742 -3 
753264 -5 
647325 -2 
346572 -5 
543267 -5 
435267 -4 
234756 -5 
732645 -5 
457263 -2 
254376 -5 
472563 -3 
634257 -2 
346257 -4 
243765 -5 
742536 -5 
547623 -5 
645372 -5 
236745 -1 
452673 -2 
734265 -2 
237546 -5 
742365 -3 
267453 -3 
532746 -2 
735624 -5 
637452 -5 
756324 -3 
357462 -5 
243657 -1 
352476 -3 
453627 -5 
764253 -1 
537426 -2 
645237 -1 
536472 -3 
245736 -1 
362574 -2 
563427 -5 
635427 -4 
436752 -5 
654327 -3 
276435 -2 
352647 -2 
653724 -5 
756432 -5 
637524 -3 
246753 -2 
532674 -2 
465732 -1 
654732 -4 
436527 -3 
534762 -5 
735246 -5 
547362 -3 
345276 -5 
453276 -4 
254637 -5 
652743 -5 
436275 -2 
234567 -5 
Robert H.Bennett 
1995. 
The peal is an attempt to find the minimum number of bobs in this system.
I suspect however, that the minimum number of bobs required in this type
of composition with two Hics is about 95.
 
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