Rock-Paper-Scissors

Rock-Paper-Scissors (also called Rochambeau) is a simple game played between two people using their hands.

The players make fists and say "Rock, Paper, Scissors" (or Ro-Cham-Beau); after the word "Scissors" (Beau) (or after the word "Paper" (Cham) depending on the rules) both players choose one of three hand signs, either a fist for 'Rock', the hand flat for 'Paper', or the middle and ring fingers extended for 'Scissors.'

The winner is chosen according to the following rules: Paper beats Rock, Scissors beats Paper, and Rock beats Scissors. If both throw the same, the game is repeated until a winner.

Rock-Paper-Scissors is often used as a method of tie-breaking. It was actually used in a court case where the litigants could never seem to agree on any matter before the court.

There are many variations of this game; one variation (made popular in the television show The Big Bang Theory) adds "lizard" and "Spock". In theory any variation using an odd number of options allows an equal number of winners and losers (plus the tie).