On 17 February 2015 at 09:43, Philip Earis <pje24 at cantab.net> wrote: > Shortest length for 41 Surprise atw: > 5760 - SU0801, SU0802, SU0803, SU0804 > (http://warboys.org.uk/comps/comp06.htm#41-5760) > (theoretical minimum = 41*120 = 4920) Don't forget the 5280 obtained by taking 5040 in 39 methods and working up. matt