More from Chalkdust
- Win a £100 Maths Gear goody bag by solving our infamous puzzle
- We review the sevnth of this year's nominees for the Book of the Year
- ... and how Chalkdust played a role in one of them
- Have a go at these puzzles, adequate for your holidays!
- We have a go at the puzzles in Daniel Griller's new book
- The definitive chart of chalk's greatest colours