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Chess Board Switch (Posted on 2004-02-28) Difficulty: 3 of 5
You have a 45 chess board as follows:

You can move the four bishops in any order (not necessarily alternating black and white), provided that no move puts a piece in danger of being captured by a bishop of the opposite color.

What is the fewest number of moves needed for the black and white bishops to exchange places?

See The Solution Submitted by Gamer    
Rating: 3.6667 (6 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)
re: Solution1 | Comment 7 of 14 |
(In reply to Solution1 by Ariel)

The problem allows successive moves by the same color.  Black and white need not alternate.
  Posted by Charlie on 2004-02-29 10:14:44

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