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.

B +H+k
h+ B +
+r+ +
+ +r+
+ Q +

Posted by Michael on 2003-09-30 01:04:58