2025from public repositories
O24 ChristmasCTF 2025
2 challenges with 2 published solutions between them. The writeups for this event were found in public repositories. Each link is pinned to the commit it was read from.
Where these writeups liveUncategorised1
The upstream scoreboard did not say, so neither do we.
Following Reverse Convention
1 official solutionAlso written up in: Jonnen98cool/CTF_writeups
Misc1
Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.
Solve it with:Brainfuck and esolang decoderCipher identifier and automatic decoderRegex tester with match offsets and capture groupsLearn: Recognising encodings
You become like those youre around
1 official solutionAlso written up in: Jonnen98cool/CTF_writeups