Contribute correction: Backgammon

  _____    _    _     _  _    __   __  
 / ____|| | || | ||  | \| ||  \ \\/ // 
/ //---`' | || | ||  |  ' ||   \ ` //  
\ \\___   | \\_/ ||  | .  ||    | ||   
 \_____||  \____//   |_|\_||    |_||   
  `----`    `---`    `-` -`     `-`'