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Several squares on bad CTF bingo were achieved (admins were even keeping track of the bad CTF bingo squares!):

- Released hints for already-blooded challenges (some with several solves)
- Competition start was delayed by 2 hours because infra broke last minute and it took them forever to get back up. When I say "infra broke", you couldn't even access the CTF platform and sign up/create a team/etc just got a 404.
- They announced CTF would be delayed by 2 hours, but then started it 1.5 hours later
- Challenges were never playtested (and acknowledged by admins) because they were mostly created the day of the CTF.
- They used a custom fork of the GZCTF platform which has lots of pros but had lots of bugs (mostly introduced by their fork). Per-team instances would constantly shut down early, if a teammate opened the challenge description your instance would break, you'd often randomly see thousands of error notifications on the page. Teams were locked after starting the CTF (they're changing that I think).
- To connect to remote challenges, you had to install a rust proxy client which would make the challenge accessible on your own localhost. It is not the most intuitive thing to install, several people had issues initially, and I just don't like the idea of having to use a proxy client to connect to challenges.
- Each challenge had a difficulty assigned to it which was very much off. Normally this wouldn't be a big deal, except the decay rate was based on difficulty. This led to some easy challenges being worth significantly more than harder challenges with a lot less solves.
- While some challenges were good, there were also guessy and painful challenges. A rev challenge was simply a cipher (you copy the "ciphertext" into dcode.fr's cipher detection and immediately got the flag), the only forensics challenges were guessy wav2png conversions using a custom scheme that you were just supposed to guess (otherwise it made it EXTREMELY noisy and very difficult to accurately make out characters).

Overall, I think the CTF would have been much more enjoyable if they:
1) Had planned for the CTF more than a day in advance, playtesting challenges + infrastructure, and
2) Changed some parts of their (custom fork of the) GZCTF platform so it wasn't buggy and didn't require a proxy.