More from Chalkdust
Making a Möbius strip
Sophie Bleau chops up, unravels, and squeezes the torus into shape
Chalkdust issue 11 puzzle hunt #1
Matthew Scroggs sets the first puzzle. Can you solve it?
Dear Dirichlet, Issue 08
Village fetes, Brexit and flowers are among the topics of discussion in this issue's Dear Dirichlet advice column
Folding nets into Johnson solids
How does one produce a net for the broadest class of polyhedra?
Advent puzzles II
Behind today's door... a puzzle!
How much will I win on the new National Lottery?
What difference will an extra 10 balls make?