More from Chalkdust

Gearing up for the track
Mats Vermeeren gets involved in involutes
Forest fires
Steven Lockwood finds polygonal numbers hidden in a spreading fire
The Secret Lives of Numbers
We review the fourth of this year's nominees for Book of the Year
Prize crossnumber, Issue 18
Can you solve it?
e to thee x
Zoe Griffiths on the life of e
Chalkdust’s Christmas conundrums
As the festive season strikes again, we'll be dishing out more fiendish puzzles – this time with prizes!
