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.