Join others around the world in attempting these weekly code puzzles
Event Start
1st January 2026
146
Players
33
Countries
293
Challenges Solved
149
Code Solutions Uploaded
10
Programming Languages Used
Recent Solved Challenges
devilssnare solved challenge
39 - BIP 39 1 days ago
BMC solved challenge
39 - BIP 39 3 days ago
greenya solved challenge
27 - Image Watermark 3 days ago
greenya solved challenge
39 - BIP 39 4 days ago
shallowspirit solved challenge
8 - Primes 5 days ago
shallowspirit solved challenge
7 - Friday 13th 5 days ago
shallowspirit solved challenge
6 - Winter Olympics 5 days ago
lag_slayerr solved challenge
5 - A Billion Bowling Pins 5 days ago
lag_slayerr solved challenge
4 - A Human Message 5 days ago
shallowspirit solved challenge
5 - A Billion Bowling Pins 5 days ago
lag_slayerr solved challenge
2 - X Marks the Spot 5 days ago
lag_slayerr solved challenge
3 - The Secret Order 5 days ago
shallowspirit solved challenge
4 - A Human Message 5 days ago
shallowspirit solved challenge
3 - The Secret Order 5 days ago
shallowspirit solved challenge
2 - X Marks the Spot 5 days ago
lag_slayerr solved challenge
38 - TOTP 5 days ago
lag_slayerr solved challenge
1 - Happy New Year 5 days ago
shallowspirit solved challenge
38 - TOTP 5 days ago
shallowspirit solved challenge
1 - Happy New Year 5 days ago
BMC solved challenge
38 - TOTP 1 weeks ago
devilssnare solved challenge
39 - BIP 39 1 days ago
BMC solved challenge
39 - BIP 39 3 days ago
greenya solved challenge
27 - Image Watermark 3 days ago
greenya solved challenge
39 - BIP 39 4 days ago
shallowspirit solved challenge
8 - Primes 5 days ago
shallowspirit solved challenge
7 - Friday 13th 5 days ago
shallowspirit solved challenge
6 - Winter Olympics 5 days ago
lag_slayerr solved challenge
5 - A Billion Bowling Pins 5 days ago
lag_slayerr solved challenge
4 - A Human Message 5 days ago
shallowspirit solved challenge
5 - A Billion Bowling Pins 5 days ago
lag_slayerr solved challenge
2 - X Marks the Spot 5 days ago
lag_slayerr solved challenge
3 - The Secret Order 5 days ago
shallowspirit solved challenge
4 - A Human Message 5 days ago
shallowspirit solved challenge
3 - The Secret Order 5 days ago
shallowspirit solved challenge
2 - X Marks the Spot 5 days ago
lag_slayerr solved challenge
38 - TOTP 5 days ago
lag_slayerr solved challenge
1 - Happy New Year 5 days ago
shallowspirit solved challenge
38 - TOTP 5 days ago
shallowspirit solved challenge
1 - Happy New Year 5 days ago
BMC solved challenge
38 - TOTP 1 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!