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Chessboard (Posted on 2004-01-14) Difficulty: 3 of 5
Three different squares are chosen randomly on a chessboard.

What is the probability that they lie in the same diagonal?

No Solution Yet Submitted by Ravi Raja    
Rating: 3.5000 (8 votes)

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re: Chessboard | Comment 12 of 20 |
(In reply to Chessboard by Purna)

I think what you are solving here is the probability that all three will lie on one of the two main diagonals without regard to whether they are on the same one or not.
  Posted by Charlie on 2004-01-24 10:11:43

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