[EM] Condorcet cyclic drop rule

[LAYTON Craig]

Correction:

>Note that it will always be the best strategy in defeat
>support not to tie any candidates or truncate, encouraging you to vote
>insincerely every time you do not have a preference between two candidates.

This is always the case when those [tied] candidates are last, but not
necessarily when they're not.
eg A>B=C>D - Splitting B & C may help D to win in some cases, although this
doesn't make defeat support any more attractive.