Mastermind for the book readers. Android will pick a word for you from 2 to 8 letters long. Your job is to figure out that word by guessing other words of the same length. In the easy mode, you are shown what letters are right and which ones are in the correct place. In medium difficulty, you are just told how many are right and in the right place. In hard mode, you are only told the number of letters that are correct. For now everything is single player, but that enhancement will happen in the future.