I don't ask for much in a game, but far too many games fall short. After buying a couple of games a week, looking for something that can hold my attention, for something that is both challenging and enjoyable, for something that will get harder as I get better, I can now quit looking. This is a great game. Yes, it's a logic game, but there's a zenlike feel to it as well. (unlike some, I'm even okay with the graphics)