MasterMind

The object of the game is to guess the combination of four colours that the computer has randomly chosen. You have six attempts to guess the correct answer. After each guess you will be shown a black marker to indicate that a colour is in the right place, and a white marker to indicate that a colour is in the answer but in the wrong place.

To set up a guess, you can drag colours from either the colour list at the left or from previous guesses onto the current guess. Clicking a colour from the colour list will add that to the guess in the first available position. Clicking a colour from a previous guess will copy that colour to the current guess in the same position. To clear the colour from a position, click it once. When ready, click "Try" to see if you got it right.