Unenjoyable due to ads! The puzzles are fun, but there's too many ads. You can solve a puzzle in seconds, but then you watch an ad before seeing your score. Then you get your score and watch another ad. Then you get to see the next level but you watch an ad before you get to play that ad and it all repeats. I uninstalled, I shouldn't spend an hour watching ads for about 10 min of actual game playing time!