Rules of play: 20Q asks the player to think of something and will then try to guess what they are thinking of with twenty yes-or-no questions.

Winning conditions: If it fails to guess in 20 questions, it will ask an additional 5 questions. If it fails to guess even with 25 (or 30) questions, the player is declared the winner.

Story: Game was inspired by game “Animals” which was popular in 1970s where artificia intelligence guessed animal by simple questions.