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The Map of Mathematics

February 13, 2020

Explore our surprisingly simple, absurdly ambitious and necessarily incomplete guide to the boundless mathematical universe.

insights puzzle

Solution: ‘The Fabulously Fair Feast’

December 22, 2015

The solution to this month’s puzzle explains how to design a Sudoku square to figure out the likes and dislikes of four or eight finicky friends.

insights puzzle

The Fabulously Fair Feast

December 10, 2015

For this month’s puzzle, design a Sudoku square to figure out the likes and dislikes of four finicky friends.

insights puzzle

Solution: ‘Be Still My Pulsating Sequence’

November 25, 2015

The solution to this month’s puzzle explains how to find a rule behind a given sequence of numbers and challenges readers to take on a ‘lovely’ unsolved problem.

insights puzzle

Be Still My Pulsating Sequence

November 12, 2015

Can you infer the simple rule behind a number sequence that spikes up and down like the beating of a heart?