Retrograde Analysis Problem 8
Difficulty: Intermediate Keywords: Problem
On a 5x5 board, after five moves (no one of them a pass), how many positions exist where you can determine exactly what the last move (
) was? (Not knowing the order of moves, of course, but only seeing the position.)
/Attempts
![[Diagram]](../../diagrams/38/4ce20947879ce856ca13656ea28fa3dc.png)
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