You have a square 5 x 5 board with four rooks in the corners:
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Note: for reference, assume the rooks are labeled A, B, C, D as follows:
A B
C D
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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?
Thought I had it in less than this, but must have been deluded.
1. D to E2
2. A to A4
3. A to E4
4. D to A2
5. B to E3
6. C to A3
7. B to B3
8. D to E2
9. A to E3
10. A to C3
Got it (in 10)
