Analytical essays, philosophy and recreational maths.
Economics, Politics, History
Recreational maths and games
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Arithmetical Tennis
A game that requires no equipment
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Perfect Numbers
A paper and pencil game that involves deception, making predictions and zero knowledge proofs
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Phantom Games
A class of games where the player needs to figure out the rules
Art
Free & open source software
Articles on various aspects of audio within the Linux operating system: