You have a square 5 x 5 board with four rooks in the corners:

Note: for reference, assume the rooks are labeled A, B, C, D as follows: A    B C    D

You can move the rooks horizontally or vertically. The only problem is that when you move a rook, it will keep going in the same direction until it hits another rook or the edge of the board.

You want to move a rook into the darkened square on the board.

How can this be done in no more than 10 moves?

Ok so that was easy

What about the smallest number of moves when it is not possible to move the same piece on consecutive turns?

Is it also possible to do this in 10 moves?

Edited on March 9, 2004, 5:03 am

Posted by Juggler on 2004-03-09 04:47:48