Goofspiel
card game
Goofspiel (also known as The Game of Pure Strategy, GOPS or Psychological Jujitsu) is a card game for two or more players. It was invented by Merrill Flood while at Princeton University in the 1930s, and Alex Randolph describes a similar game as having been popular with the 5th Indian Army during the Second World War.
The game is simple to learn and play, but has some degree of strategic depth. It is commonly used as an example of multi-stage simultaneous move game in game theory and artificial intelligence.
Game play
Goofspiel is played with a standard deck of cards. It is typically a two-player game, although more players are possible.
One suit is singled out as the "prizes"; each of the remaining suits becomes a hand for one player, with one suit discarded if there are only two players, or taken from additional decks if there are four or more. The prizes are shuffled and placed between the players with one card turned up.
Play proceeds in a series of rounds. The players make sealed bids for the face-up prize card by selecting a card from their hand (keeping their choice secret from their opponent).
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This entry incorporates text from “Goofspiel” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.