More from Chalkdust
The Hidden Half
We review the ninth of this year's nominees for the Book of the Year
Crossnumber winners, Issue 08
Did you solve it?
Christmas conundrum #4
Can you solve four puzzles to reveal the hidden message?
Cat among the pigeons
Some interesting observations with the pigeonhole principle
Debugging insect dynamics
Explain the strange dynamics of certain insects using game theory
Breaking out of the prisoner’s dilemma
What happens if you play the prisoners' dilemma against yourself?