Join others around the world in attempting these weekly code puzzles

Event Start

1st January 2026

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147

Players

Countries

297

Challenges Solved

152

Code Solutions Uploaded

Programming Languages Used

Recent Solved Challenges

BMC solved challenge 40 - Snakes & Ladders 5 days ago greenya solved challenge 41 - Inverse Word Pyramid 5 days ago BMC solved challenge 41 - Inverse Word Pyramid 5 days ago greenya solved challenge 40 - Snakes & Ladders 1 weeks ago devilssnare solved challenge 39 - BIP 39 2 weeks ago BMC solved challenge 39 - BIP 39 2 weeks ago greenya solved challenge 27 - Image Watermark 2 weeks ago greenya solved challenge 39 - BIP 39 2 weeks ago shallowspirit solved challenge 8 - Primes 2 weeks ago shallowspirit solved challenge 7 - Friday 13th 2 weeks ago shallowspirit solved challenge 6 - Winter Olympics 2 weeks ago lag_slayerr solved challenge 5 - A Billion Bowling Pins 2 weeks ago lag_slayerr solved challenge 4 - A Human Message 2 weeks ago shallowspirit solved challenge 5 - A Billion Bowling Pins 2 weeks ago lag_slayerr solved challenge 2 - X Marks the Spot 2 weeks ago lag_slayerr solved challenge 3 - The Secret Order 2 weeks ago shallowspirit solved challenge 4 - A Human Message 2 weeks ago shallowspirit solved challenge 3 - The Secret Order 2 weeks ago shallowspirit solved challenge 2 - X Marks the Spot 2 weeks ago lag_slayerr solved challenge 38 - TOTP 2 weeks ago

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

Accessible for 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!

The larger the community becomes, the more fun taking part in the weekly challenges should be - feel free to share the site amongst your friends, classmates, colleagues, social media groups etc!

Good luck - and have fun!