
Finally wrote my static heuristic evaluation function for C4



Code: Select all
CL-USER> (set-difference '(1 2 3 4 5) '(3 4))
(5 2 1)
OP didn't answer this.There is no guarantee that the order of elements in the result will reflect the ordering of the arguments in any particular way. The result list may share cells with, or be eq to, either of list-1 or list-2, if appropriate.