[r-t] 720s

[Philip Saddleton]

On 05/03/2014 15:13, Robin Woolley wrote:
> As is widely known, it is possible to obtain an extent of plain minor 
> using just 12 calls. One such is 3*1236 + a common single, all at 
> home, twice repeated.
This is just a course of Plain Bob Minimus (write out the course heads 
and course ends). Any right-place extent on n can similarly be used to 
give an extent on n+2.

PABS