Mathematician gives five or six reasons why parity puzzles are fun. May 2, 2010 — -- In belated recognition of April being Math Awareness Month, my column this May will deal with parity. The ...
Puzzle 2 The rook must start on a white square to finish the tour. Again, parity helps us understand why this must be so. The rook’s tour alternates between white and black squares. Speak them out as ...
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