Codebreaker is a logic game in which a code-breaker tries to break a secret code created by a code-maker. The codemaker, which will be played by the application we're going to write, creates a secret code of four numbers between 1 and 6. The codebreaker gets some number of chances to break the code (depends on chosen difficulty). In each turn, the codebreaker makes a guess of 4 numbers.