More from Chalkdust
- Dimitrios Roxanas tells us why playing chess backwards is the new black (and white).
- Paddy Moore levels the score
- David Sheard sets the third puzzle. Can you solve it?
- David Sheard explores the rich mathematics and history behind the Apollonian packing, and the cover of issue 11
- Find out more about the patterns on the cover of Issue 07
- Vote for your favourite geometry instrument