In rock-paper-scissors, what does rock beat?
AnswerScissors
Rock crushes scissors; paper covers rock.
Games · Facts & stats
Game facts & stats
7 fact-checked facts about game theory and strategic thinking, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What is the chance a fair coin lands heads?
Answer1 in 2
A fair coin has two equally likely outcomes.
Going deeper
What is a Nash equilibrium?
AnswerA situation where no player gains by changing strategy alone
At equilibrium each player's strategy is the best response to the others.
The film A Beautiful Mind portrays which game theorist?
AnswerJohn Nash
The 2001 film is based on the life of mathematician John Nash.
In repeated games, what does the tit-for-tat strategy do?
AnswerCopies the opponent's previous move
Tit for tat cooperates first, then mirrors the other player.
Expert level
Who submitted the tit-for-tat strategy that won Robert Axelrod's tournaments?
AnswerAnatol Rapoport
Rapoport's simple strategy won Axelrod's computer tournaments around 1980.
In what year did John Nash share the Nobel Prize in Economics?
Answer1994
Nash shared the 1994 prize with John Harsanyi and Reinhard Selten.
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