Fun game but big problem! The fact that there is an ad after every single turn is utterly ridiculous! Also, when you are playing both the go version as well as the classic version some of the ads that pop up don't fit on the screen properly so you can never click the "x" when it completes because it's not visible. You have to completely close the game and restart it. It's so annoying I stopped playing. They really need to fix it.