This is classic code breaking game. Code-Master(Computer) will create a sequence of five balls with six different colors. Colors may be duplicate.
You have to guess the pattern, in both order and color, within twelve turns. Each guess is made by placing a row of different colour balls on the board by pressing colored switches below. Once placed, the Code-Master provides feedback by placing ticks and crosses next to the row with the guess. A Green tick is placed for the guess which is correct in both color and position. A Yellow tick is placed for indicating the existence of a correct color ball placed in the wrong position. And for other guess a cross is provided.
One can delete a ball from the current guess by tapping on that ball; Pressing any switch will fill that blank place first.
Once feedback is provided, another guess is made; guesses and feedback continue to alternate until either the codebreaker guesses correctly, or twelve incorrect guesses are made.