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Can Information Rise From Randomness?

July 7, 2015

Quanta’s new puzzle column asks you to believe the seemingly impossible — that you can win at a number guessing game with absolutely no information.

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The Nine Schoolgirls Challenge

June 9, 2015

Solve this variation of Thomas Kirkman’s famous 1850 puzzle by arranging girls in walking groups. And think fast — the clock is ticking.