A fun game I discovered recently, minim. In each level you start out with a network of numbered nodes, and the object is to successively combine the nodes according to certain mathematical rules in order to end up with only a single node. The levels start out easy but get fiendishly difficult by the end. My only complaint is that it isn’t possible to make up your own custom levels.
Tags: arithmetic, game
What a great game!! Other than the fact that is makes me SUPER unproductive.