[Retros] Thoughts about P0000230

[Guus Rol]

Last night, I realized I need to study Kisljak's composition in more detail.

>From the original post I assumed that taking back another move than the

solution move would produce a position requiring >50 "reversible" moves to
resolve, in which case my conclusion stands firm. If however, the
alternative retraction moves take <50 "reversible" moves for resolution,
than the problem is correct. Provided of course we use the second
interpretation of the 50-move convention, the one I think is appropriate. I
did not not write my comment in order to bash this (or any) particular
composition but to demonstrate the lines of reasoning required to evaluate
50-move problems.

Guus.
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