Eight white chess knights are placed on a 3x4 chessboard, four along the top row and four along the bottom, which are labeled as P, Q, R, S, T, U, V and W, as shown in the figure.

Exchange the positions of P and T, Q and U, R and V, and S and W in minimum possible number of moves.

P	Q	R	S
T	U	V	W

Let the squares be identified from 1 through 12 being read from left to right down.

(In reply to re: Move Regimes by Dej Mar)

Fixed.  My arrangement for T had the same flaw but my S and W were fine.

That data incidentally didn't impede my thoughts in trying for a solution however as I compiled that data later.

Posted by brianjn on 2010-02-15 19:39:11