The game has different levels of difficulty, which is nice. Though the setup for it is annoying, in that once you set it up, then start to ‘guess’ the placement, you constantly have to refer to the template to make sure you don't remove any original pieces. Also, to pack the game up in the case, you have to spend 30 seconds or so putting the pieces in an exact order to close the lid. Not to mention there is little thought or skill required, as its just a try and try again game. There's no real challenge.