More from Chalkdust
Prize crossnumber, Issue 17
Can you solve it?
Top ten vote issue 14
Have your say on the top ten matrices
Bells, braids and taxicabs
An adventure that starts with a morning of bell ringing and ends with a mad dash in a taxi
Review: Mathematical socks
Can you wear them and be taken mathematically seriously?
Menace: the Machine Educable Noughts And Crosses Engine
Teaching a bunch of matchboxes how to play tic-tac-toe
A counterintuitive result in the theory of traffic flow
Additional roads do not imply faster travel times!