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Game shows, flight and social media bots are among the problems solved in this issue's Dear Dirichlet agony aunt column

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Kimi Chen deciphers the 1920s story you haven’t heard

Celebrate the launch of issue 11 by taking part in our puzzle hunt

In 2018, scientists discovered a new shape that is essential to multicellular life

A review of Timothy Revell's new book, describing the hidden mathematics behind our world