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Coin Dropped on a Chessboard

Submitted By:javaguru
Fun:*** (2.28)
Difficulty:*** (3.02)

A table has a chessboard integrated into the center of the table. A round coin fits exactly inside of a square on a chessboard. The coin is dropped on the table and lands face-down, with at least part of the coin on the chessboard.

What is the probability that the coin covers the corner of four chessboard squares?

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