# Rooks Under Siege

On a 8 by 8 chessboard, 2 rooks are randomly placed on 2 different squares of the chessboard. The probability that these 2 rooks will be able to attack each other has the form $$\frac {a} {b}$$, where $$a$$ and $$b$$ are coprime. What is $$a + b$$?

Note: Rooks can attack anywhere along the row and column they are in.

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