Well isn't the fact that you can move a stone which appearently does nothing a big enough clue?
You just have to get used to a certain way of thinking while playing these games. Most actions you make are quite complex and you won't understand the final resoult of it until much later.
That's why these games actually increase the IQ! It's sometimes illogical, but then again it does wonders for the creative thought. There's a great article about this somewhere on the boards.
I'm glad you liked the game, you should try some other similar stuff!
k: