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Puzzle ZRZL 



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How many squares, of any size, can you find on this chessboard that do not contain a Rook?

Puzzle Copyright © Kevin Stone

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Answer
128.

Reasoning
There are 62 squares of size 1x1.
There are 41 squares of size 2x2.
There are 18 squares of size 3x3.
There are  6 squares of size 4x4.
There is   1 square  of size 5x5.

A total of 62 + 41 + 18 + 6 + 1 = 128.

 

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