MATHEMATICS

Jumat, 01 Februari 2013

Puzzle


Try Yourself

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

 



Answer: There are 116 squares without a rook.

1 x 1 : 61 squares.
2 x 2 : 37 squares.
3 x 3 : 15 squares.
4 x 4 :   3 squares.

 

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