A chart showing how the three game elements interact.
|Players||2 (or more)| |Skill(s) required||Luck, psychology|
Rock-paper-scissors is a hand game usually played by two people,
where players simultaneously form one of three shapes with an
outstretched hand. The "rock" beats scissors, the "scissors"
beat paper and the "paper" beats rock; if both players throw the
same shape, the game is tied. Other names for the game in the
English-speaking world include roshambo, and other orderings of
the three items. The game is often used as a choosing method in
a way similar to coin flipping, drawing straws, or throwing
dice. Unlike truly random selection methods, however, rock-
paper-scissors can be played with a degree of skill by
recognizing and exploiting non-random behavior in opponents.
Game play  The players usually count aloud to four, or speak the
name of the game (e.g. "Rock Paper Scissors!" or "Ro Sham Bo!"),
each time either raising one hand in a fist and swinging it down
on the count or holding it behind. O