The Rock

Sometimes called "Stone", the Rock is beginners' favourite move. Cartoon hero Bart Simpson says "Good ol' `Rock'. Nuthin' beats that!" and it's indeed what a lot of people tend to think.

But What Is Rock?
Rock symbolizes physical strength, steadiness. It's viewed as a reliable move, a solid affirmation of one's will. "Rock Players" (players who throw Rock with a greater than 40% frequency) can be compared to warriors (think "Conan the Barbarian"). They favour strength over intelligence. This doesn't mean they're easy to beat, unless they throw Rock with a bigger than 50% frequency. Their willpower often frightens frail players, who will thus be weaker against them.
How To Defeat It
There's only one way to beat a Rock: throw a Paper!
Rock Openings
Rock is the most common opening, especially among inexperienced players. It once (in the late 60s) was a wiser bet than now, when Scissors openings were en vogue. Nowadays Paper is a much safer opening. In tournaments, playing a lot of Rocks is a good way to make your opponent think you're not a dangerous opponent, and thus can give you an advantage over him.