MasterMind

The goal of the game is to break the hidden code in a maximum of ten attempts. The hidden code consists of four digits. Each attempt may contain any digit from 0 to 9, no repetition is allowed. The two columns on the right indicate respectively the centered digits and the staggered ones. The digits placed in the correct position in the hidden code are centered. The digits present in the hidden code but placed in the wrong position are staggered. The code is broken when all the digits become centered.