More from Chalkdust
My life with mathematical tattoos
... and how Chalkdust played a role in one of them
Should you buy a Valentine’s day present?
For those of you tackling this dilemma, here's your answer...
The Chalkdust Christmas card
This year's Chalkdust puzzle Christmas card
Binary magic card trick
Behind today's door... A binary magic card trick!
Killing by numbers: the mathematics of warfare
A blast from the past. Modelling battle grounds from ancient Greece.
A counterintuitive result in the theory of traffic flow
Additional roads do not imply faster travel times!