More from Chalkdust
An odd card trick
Michael Wendl dissects some variants of the magic separation, a self-working card trick.
Dear Dirichlet, Issue 13
Parishoners, partners and puzzled playwrights have written in to the professor's postbox this issue
Here Come the Numbers
We review the fourth of this year's nominees for the Book of the Year
Advent quiz
Behind today's door... A quiz!
Prize crossnumber, Issue 04
Can you solve it?
Fermat Point by Suman Vaze
The maths behind Issue 02's cover