A high-stakes game of surveillance, deception, and intrigue.
This is a simple game to be played by two teams of approximately equal size, at least two people per team, but probably five is needed for things to be interesting. This is a zero-sum game, that is, it has a winner and a loser. The game will be most fun if there is a prize of some kind for the winning team. Each game will have a set duration, and this can be of any length. It should probably last at least half an hour, the most interesting games will last for months or years. There is no upper limit on team size, the game duration, or the prize.
The goal of the game is to win an ordinary game of Rock, Paper, Scissors played between representatives of the two teams at the end of the team game. The teams may use any method they wish to choose who their representatives are, and what they are going to throw. However, the throw of the representative is final, regardless of the team's stated choice, so representatives should be chosen carefully. In the event of a tie, the final match is re-played until there is a victor. Teams should take care to prepare a number of successive throws.
The Fun PartAt any time before (or during) the final match, the teams may attempt to spy on each other. By determining what the other team is going to throw, they can throw the superior object. At the same time they may deliver misinformation to the opposing team, thereby controlling their opponents choice. The difficulty (and fun) lies in determining what information to believe, and what information to let leak out.
The StakesThe complexity of the game will be related to it's prize, duration, and team size. Given enough time and enough motivation, resourceful teams will invent fabulous ways to observe and mislead their opponents. It think it would be interesting, and somewhat less bloody, if nations used this method to resolve conflicts. Interestingly, the spy game would be largely unchanged.