More from Chalkdust
We don’t talk about the integers
Simone Ramello explores the hic sunt leones of the friendliest numbers we know...
Quarto in higher dimensions
Peter Rowlett is gonna need a bigger board
Christmas puzzle #2: A Christmas nonogram
Puzzle #2 in our 2020 Christmas puzzle series
Geometry Puzzles in Felt Tip
We review the first of this year's nominees for the Book of the Year
Find your perfect partner
Find your perfect partner with this wonderful tree diagram!
Visualising mathematics with 3D printing
Using modern technology to understand geometry