X-MAS GTF 2021
11 challenges with 15 published solutions between them. No writeups were ever filed against this event's listing, so its solutions were found in public repositories instead. Each link is pinned to the commit it was read from.
The event listingUncategorised11
The upstream scoreboard did not say, so neither do we.
Having a BLAST
2 official solutionsAlso written up in: K1nd4SUS/CTF-Writeups, iRevivalx/CTF-Writeups
Mem X
2 official solutionsAlso written up in: K1nd4SUS/CTF-Writeups, iRevivalx/CTF-Writeups
Santa's Flakpanzerkampfwagen
2 official solutionsAlso written up in: damned-me/ctf-writeups, damned-me/ctf-writeups
Super Secret Communications
2 official solutionsAlso written up in: K1nd4SUS/CTF-Writeups, iRevivalx/CTF-Writeups
A putative sequence
1 official solutionAlso written up in: K1nd4SUS/CTF-Writeups
Elf Exam
1 official solutionAlso written up in: K1nd4SUS/CTF-Writeups
Gnome Oriented Programming
1 official solutionAlso written up in: K1nd4SUS/CTF-Writeups
Intergalactic Christmas
1 official solutionAlso written up in: K1nd4SUS/CTF-Writeups
Krampus' Inferno
1 official solutionAlso written up in: K1nd4SUS/CTF-Writeups
Piano Carol
1 official solutionAlso written up in: K1nd4SUS/CTF-Writeups
Underground Forensics
1 official solutionAlso written up in: K1nd4SUS/CTF-Writeups