DescriptionTwemoji12 1f601.svg A colored emoji from the Twemoji project Date from 7 November 2014 until 31 March 2022 date QS:P,+2050-00-00T00:00:00Z/7...
svg English: An example prisoner's dilemma payoff matrix drawn by CMG Lee using emojis from http://commons.wikimedia.org/wiki/File:Emojione_1F601.svg...
