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. The codemaker then marks the guess with up to 4 signs - + or - or empty spaces.

• A + indicates an exact match: one of the numbers in the guess is the same as one of the numbers in the secret code and in the same position.
• A - indicates a number match: one of the numbers in the guess is the same as one of the numbers in the secret code but in a different position.
• An empty space indicates that there is not a current digit in a secret number.

Include to Gemfile:

gem 'codebreaker_ap'

And then execute:

$ bundle

Or install it yourself as:

$ gem install codebreaker_ap

Create object:

game = Codebreaker::Game.new

Setup difficulty:

game.difficulty.initialize_difficulty('hell')

Print or get statistic:

game.show_stats #print
game.load_statistic #get pure statistic without labels

Print rules:

game.show_rules

Check entered answer and return '+', '-' or ' ':

game.check_answer('1234')

Also available console for this game: codebreaker_ap-console