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Non-Attacking Chess Pieces (Posted on 2003-02-27) Difficulty: 4 of 5
Arrange all 8 chess pieces of one set (no pawns) on a 5x6 board so no piece attacks another. Never mind that they're all the same color--it's "friendly fire". Be sure that the two bishops are on opposite-colored squares. There are 6 ways, not counting reflections and rotations.

See The Solution Submitted by Charlie    
Rating: 3.8000 (5 votes)

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What's a rotation? | Comment 9 of 12 |

Great puzzle!  We have found three different solutions (over an equal number of weeks...).   Now we're not sure if we have finished or not.

Say we have a solution on a board where the bottom right square is black.  If we put exactly the same solution on a board with a white bottom right square, is that a new solution or simply a rotation?  (This is the same as picking up the pieces in the first puzzle with a ten-pin-bowling-like set of pincers, and then spinning the board 180 degrees and dropping the pieces back down.  Does this count as a rotation?)


  Posted by blackberry brambles on 2004-03-05 07:17:36
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