Tuesday, April 21, 2009

How Many Squares Are On a Checkerboard?

I have a puzzle for you:

A standard 8x8 checkerboard has 64 individual squares. But how many more squares can you find?

Well, in addition to the 64 single squares you can also find 49 2x2 squares, 36 3x3 squares, 25 4x4 squares, 16 5x5 squares, 9 6x6 squares, 4 7x7 squares and of course 1 8x8 square (the whole gameboard).

So the answer is 204.

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