Join others around the world in attempting these weekly code puzzles

Event Start

1st January 2026

Create a private leaderboard for your friends, school, university, workplace...

Accessible for (almost) all - if you're a high school or college student, you should be able to attempt and solve all of the challenges

If you're struggling, help will be available via social media and solutions will be visible once the week has finished - though submissions can be made any date!

Good luck - and have fun!