More from Chalkdust
- Celebrate the latest issue with us in London on 28 November
- We talk to the Fields medallist about his life, his work and his advice to his younger self.
- Can you solve it?
- Have your say
- Should you ask Santa for 'Ice Col' Beveridge's encyclopedic tome this festive period?
- It's the last day of the Chalkdust advent calendar, so there must be something very good behind today's door...