In the recreational math world, puzzle advent calendars are a thing. One of my favorites is produced by Mathigon, a beautiful free website for students, teachers and self-learners, and from which I chose today’s puzzles. Happy solving, everyone!
1. The knights move in.
2. Round the missing number.
3. Are you square?
4. Hexagonal, hexagonal, hexagonal.
5. Satsuma segment.
I’ll be back at 5pm UK with the answers.
NO SPOILERS. Please reserve your favorite knights.
Thanks to Mathigonwhich belongs to international edtech firm Strengthen. Mathigon is one of the most engaging and creative math resources on the web, and it’s free. Check it out!
I’ve been doing a puzzle here on alternate Mondays since 2015. I’m always on the lookout for great puzzles. If you want to suggest one, email me.