More from Chalkdust
Christmas puzzle #1: Christmas tree sudoku
Puzzle #1 in our 2020 Christmas puzzle series
Counting all the numbers between zero and one
Tony Pisculli dissects the lyrics from a popular song
Review of The Maths Behind by Colin Beveridge
Should you ask Santa for 'Ice Col' Beveridge's encyclopedic tome this festive period?
In conversation with Cédric Villani
We feel underdressed for Breakfast at Villani's
Constructing a sphere with 455 cups
Paper cups do not follow a hexagonal pattern and the cones do not meet at a single point, but they do make a gigantic sphere
How to make: a Dear Dirichlet Valentine’s Day card
Make the perfect gift for your loved one