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Neighbors or not? (Posted on 2016-03-22) Difficulty: 2 of 5
If two cells are chosen randomly on a 8x8 chessboard what is the probability that they are neighbors (i.e. share a common side)?

No Solution Yet Submitted by Ady TZIDON    
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re: Solution Comment 3 of 3 |
(In reply to Solution by Brian Smith)

Nice!  I've never thought of this way of seeing it before: 

There are 8*7*2 = 112 ways to choose two adjacent cell.
  Posted by Jer on 2016-03-23 09:53:18

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