On Tue, Aug 21, 2007 at 07:55:27PM +0000, kerry_and_ryan@xxxxxxx wrote: >Huh, I get 204. Hmm. That's not so many. That's few enough that one could draw a state diagram. And then map the optimal transfer path from one orientation to another... At least the system of (tree, house) has enough states that, while one could generate an optimal strategy this way, it probably wouldn't fit onto a single sheet of paper. :-) Roger