A fast Ruby library to play chess with Ruby. This library is quite fast because rappresent the game situations with bitboards. In addition, the move generator is written in C as a Ruby extension.

• Ruby 1.9 or higher

gem install chess

require 'chess'
g = Chess::Game.new
until g.over?
  begin
    print "Give me a #{g.active_player} move: "
    input = gets.chop
    break if input == 'quit'
    g << input
    puts g
    puts g.moves.last
  rescue Chess::IllegalMoveError => e
    puts 'Illegal move!'
  end
end
puts g.status

Documentation is available here.

If you have any issues please add an issue on GitHub or fork the project and send a pull request.

Copyright © 2015 Enrico Pilotto (@pioz). See LICENSE for details.