dJulkalendern

The dJulkalendern committee is responsible for creating dJulkalendern every year. dJulkalendern is an Advent calendar-based CTF-competition that runs from December 1st until Christmas Eve. Challenges are released on weekdays at 12:15.

Each window of the calendar includes a challenge for you to solve, which might be a cryptic puzzle, hacking or some other computer science-related thing. Your task is to solve as many windows as possible, as fast as possible! The calendar has an intriguing story that unfolds as you solve each window.

The competition is held on our website https://djulkalendern.se.

There is also a Discord server that you can join to get updates before and during the competition.