A free app for Android, by Keeri.
What is Mastermind?
Mastermind is a strategy board game, where the aim is to guess the color and order of four hidden balls. The hidden balls are in an envelope, and you have to find out the correct answers, based on the clues the game gives you.
After each guess, the game shows you either a black or white spike. The black spike means that you guessed the correct color and order of one ball, but the game did not give you the information you needed to know. The white spike means that you guessed the correct color and order of all four balls.
The game shows you which ball you guessed, and how you did. It also shows you the number of black or white spikes you got.
