I used to play this game with my sister -- each of us will write down 4 digits between 1 to 9. The 4 digits cannot have duplicates. For example, "1213" will not be allowed. Once we each have our secret 4 digits, we take turns guessing the other person's 4 digits. Whenever one person make a guess, the other person has to give a hint by saying how much her guess matches. Any digit that's exactly at the right position will be an "A", and any digit that does occur, but not at the right position, will be a "B". For example, if the real answer is "1234", but I guessed "1547", my sister will say "you get 1A1B". The two player verion is to see whoever guess the oher person's digits first. This version I made, is a one player version. The girl in the program will make 4 digits and keep them secret, and you have to guess what the 4 digits are. The girl will give you hints as ?A?B you get from your guess. Try to guess the right 4 digits in as few turns as you can!
