For one reason or another, no one has done a thorough evaluation of rock-paper-scissors. That is, until recently: Zhijian Wang and a group at Zhejiang University in China carried out a study with 360 students recruited from the University. The students were split into 60 groups of six players, and each group played 300 rounds of Rock-Paper-Scissors, with an additional financial incentive to the winners of each group. Winners stuck with with their selected action, while losers cycled through actions (rock, paper, scissors). No word on how well this works with expanded versions of the game (previously).
Rock-Paper-Scissors: You vs. the Computer. "Computers mimic human reasoning by building on simple rules and statistical averages. Test your strategy against the computer in this rock-paper-scissors game illustrating basic artificial intelligence. Choose from two different modes: novice, where the computer learns to play from scratch, and veteran, where the computer pits over 200,000 rounds of previous experience against you."
Nontransitive dice are sets of dice (A, B, C, etc.) with counterintuitive properties: die A beats die B and die B beats die C, but die C beats die A. [more inside]
The Yahoo! 2008 World Rock Paper Scissors (RPS) Championships will be held in Toronto, Ontario on October 25. First prize: $10,000. Norway has publicly stated that they aim for a Norwegian world champion by 2010. RPS trading cards can be found here. Graham Walker, co-founder of the World Rock Paper Scissors Society, discusses the sport on CBC here. Amusing posters and other kitsch. [more inside]
He added to Rock, Paper, Scissors and came up with RPS-15 (with 15 signs) and then RPS-25 (yep, 25 signs). Then he added on to those games and made something "so complex, I highly doubt anyone will actually even want to attempt to play it." Dear lord, it's RPS-101. (Previously)
The battle of wits has begun. It ends when you decide and we both drink, and find out who is right and who is dead.
Game Theory at the movies. The Princess Bride demonstrates the use of common knowledge, Butch Cassidy laments pareto equilibrium, and Swingers is an example of pooling equilibrium. Though no longer on the site, you can still see the most involved rock, paper, scissors game ever filmed [.mov].
RPS-15 (and, if you can handle it, RPS-25) for when traditional "Rock, Paper, Scissors" is just not enough.
Roshambo: It's a religion, it's conflict resolution, it's a cult of personality, it's a way of life, it's rocks and paper and scissors grooving up their thing. Worship of Roshambo.