Each player writes a name on a slip of paper and then passes it to the judge. After the judge receives all the slips, he mixes them up and writes the names on the board. The judge picks a person to start.
The person (Frank) chooses someone in the game and guesses what their name might be. “Bob”, I think you’re Cinderella.” If Frank is correct, Bob in now on Frank’s team. Later, if Frank’s name is guessed, both Frank and Bob join the other’s team.
Frank continues to guess people’s names until he guesses wrong. The last person he asks now gets to guess. Play continues until all but two players have been guessed. The winner is the player with the most people on his team.