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Video games, board games, roleplaying, and online gaming communities. Browse a human-edited collection of gaming resources spanning genres, platforms, and communities.
20799 resources
A forum and collection of brain teasers, logic problems, math problems, paradoxes, science games, probability, riddles, and geometric shapes. The puzzles are searchable and categorized, most have solutions.
A probability theory puzzle with solutions. [English and German.]
Discussion board hosted at Berkeley with talk about a variety of solved and unsolved brain teasers.
JavaScript example of the Monty Hall Game. This game demonstrates the real (empirical) affect of statistics. [Does not display correctly in all browsers.]
Monthly logic and math puzzles set by IBM researchers with solutions.
Claims that the two envelope paradox comes from the incorrect use of probabilities.