[r-t] Pitman's 13440 change compositions
Robin Woolley
robin at robinw.org.uk
Wed Aug 16 11:21:31 UTC 2017
Hi All,
It seems that the methods RRH gave in the last post are all gp M except
Malpas which is group L. I seem to recall showing some years ago that a
seven-lead spliced-course is only possible with a minimum of three
different lead-end groups. Here is a possible course - CEEFFEE. This is
for 2nds place methods but can be easily re-written JLLMMLL. There can
never be more than four leads of any one group.
CCFFEFF => JJMMLMM is another one.
I hope I've remembered/interpreted this correctly. I'll have a look the
next time I go upstairs.
Best wishes
R.
PS - EFFFFF => LMMMMM is the only suitable 6-lead course.
PPS - up to order of rotation, of course.
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