StoneLogic Free

StoneLogic is a mathematical game of strategy in which two players take turns removing stones from distinct heaps. On each turn a player must remove at least one object and may remove any number of objects provided they all come from the same heap. The player to take the last stone loses.
There are three difficulty levels: Normal, Hard and Impossible.
Normal is just for learning the basics. Hard is a bit more complex.
Anyway, the real challenge awaits you on impossible.
So, why don't you give it a try?