In this version of the classic game, you can play solo and have it randomize the winning pattern for you. You could also play with a friend, and make your own pattern for your friend to guess. Mastermind will keep track of your guesses, and whether the colors in your guess are correct, or in the pattern but in the wrong position. Just like the game, each red/white indicator does not correlate to the position of your guess. Mastermind also can handle duplicate colors in the winning pattern. If you randomize the pattern and allow duplicates, you may see one color in more than one place. Although extremely rare, you may just see one color in all 4 spots! Allow duplicates if you want a real Mastermind challenge! You are not limited to 10 guesses, so keep guessing as long as it takes you