Did you solve it? Are you a match for the world’s smartest teen?

The solution to today’s puzzle Earlier today I set you the following puzzle, suggested by Briton Alex Chui, the most successful ever candidate at the International Mathematical Olympiad. Last month Alex, who is a pupil at Tonbridge School in Kent, became the first person to win a medal at the olympiad for seven years in a row. Bravo! Continue reading...

By Alex Bellos