MasterMind Challenger.

This MasterMind Challenger is a version of the classic Mastermind game of logic.
Win the game by discovering the colors of the 8 peg solution. You have 13 chances to correctly guess answer.
After each guess you receive feedback consisting of black and white pegs. The number of black pegs is the number of correct pegs in your guess.
That is, for example, one black peg tells you that exactly one of the pegs in your guess is the right color in the right place, but you don't know which one is correct. The number of white pegs is the number of pegs in your guess that are the correct colors but that are not placed in the correct positions, so two white pegs would tell you that two of your four pegs are correctly colored but not in the right locations.

Good luck...