On Jul 28, Jeff Wolfe wrote: >> From: Jonas Kölker <jonaskoelker@xxxxxxx> >> I think (but I'll do a BFS search once I get the DIG edges on-line) that you >> can transform a tree to the default house in four moves and no less, for >> instance by tip/3*aim or 2*hop/2*aim. You can transform the house into a tree >> in two moves (2*hop), though. >> >> From: Christopher Hickman <tophu@xxxxxxx> >> What two moves? You can only hop the queen and putting it on top of >> either the remaining pieces does not set you up for a tree in another >> hop, as the queen must be on the bottom, topped by the drone, which is >> in turn topped by the pawn. > > The original upright piece is the small (pawn). So a hop with the small > onto the medium (drone), then a hop with the pair onto the large (queen) > works. Except that only the top piece of a tower can be hopped, not the whole tower. Hopping then becomes a Tower of Hanoi problem: 1) Hop small onto medium 2) Hop small off 3) Hop medium onto large 4) Hop small onto tower - Eric