Prison Break: A Simple Counting Problem

February 20, 2015

Imagine a prison having 36 cells arranged like the squares in a 6-by-6 grid. All adjacent cells have doors between them; doors that you can open. You, the prisoner in the top-left corner cell, are told that you can have your freedom if you can find your way to the diagonally opposite corner cell, after passing through each other cell exactly once.

Can you figure such a way out of the prison?

If this seems to be taking you an embarrassingly long time, feel free to [click here for the solution]()

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