The 2025 calendar has ended and its leaderboard is final. Every problem stays open for practice, but correct answers no longer earn points.

1. 00 INTRO Requiem for Our Future released!

1. 01 2025-12-01 A Day at SEBNP practice released!
2. 02 2025-12-02 An Explosive Diplomatic Crisis practice released!
3. 03 2025-12-03 A Strange New Pandemic practice released!
4. 04 2025-12-04 Reindeer Tunnels practice released!
5. 05 2025-12-05 The Rune Reconstruction practice released!
6. 06 2025-12-06 Hack the Hacker practice released!
7. 07 2025-12-07 Forgot Password? practice released!
8. 08 2025-12-08 Soup-Jar-Formulator 8000 practice released!
9. 09 2025-12-09 Jar storage practice released!
10. 10 2025-12-10 Scripting snag practice released!
11. 11 2025-12-11 Forever and ever practice released!
12. 12 2025-12-12 Soaring soup sleighs practice released!
13. 13 OUTRO Overture for Our Future released!