It would be a good fun puzzle game, but there are WAY too many ads. Heck, if you win a game: ad. Lose a game: ad. Want to undo a few moves: ad. Almost nobody makes good games any more, they are all torturous with the ads. Lastly, it seemed that the early stages had short ads, or ones you can skip...once I got over about 75, every one turned into a 30 sec slogfest. I'm off to try another - probably the same sort of thing, but hope springs eternal!