This is really a great game! It sure does keep you on your toes! I have had a few of the three word sets where two of the words would use the same two letters and provide appropriate words, but the third word wouldn't be a valid word and I would have to go back to the drawing board and try again. I have downloaded several of this developer's apps, and I do have to say they are all very well made, most of them very unique and special from the usual run o' the mill, and all of them very, very fun!!! ((~.~))One of my very favorites by this developer is the word jigsaw game which I have had for quite a long time now. It is so very different from the usual la-di-da word game, and I am totally nuts about it! If you haven't tried it you should try it now. It is very clever, and can be VERY challenging! Great job, Dev, and I'm surely keeping my eyes and ears open for anything new by you!