More from Chalkdust

Universal poetry
Andrew Stacey explores the mathematics within poetry.
The maths ‘black box’
John Pougué Biyong explains how and why science communication can lead to better diversity.
Topological tic-tac-toe
Alex Bolton plays noughts and crosses on unusual surfaces
The simplest difficult task
Factorisation is often used in cryptography. But there's something even simpler which turns out to be just as hard.
Crossnumber winners, issue 04
Are you a winner?
Christmaths carols II
Behind today's door... Another carol!
