> For the complete documentation index, see [llms.txt](https://the-winrars.gitbook.io/writeups/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://the-winrars.gitbook.io/writeups/2021-writeups.md).

# 2021 Writeups

- [Union CTF](https://the-winrars.gitbook.io/writeups/2021-writeups/union-ctf.md)
- [Antistatic](https://the-winrars.gitbook.io/writeups/2021-writeups/union-ctf/antistatic.md)
- [Cr0wn Air](https://the-winrars.gitbook.io/writeups/2021-writeups/union-ctf/cr0wn-air.md)
- [Human Server](https://the-winrars.gitbook.io/writeups/2021-writeups/union-ctf/human-server.md)
- [Mordell Primes](https://the-winrars.gitbook.io/writeups/2021-writeups/union-ctf/mordell-primes.md)
- [Neo-classical](https://the-winrars.gitbook.io/writeups/2021-writeups/union-ctf/neo-classical.md)
- [Nutty](https://the-winrars.gitbook.io/writeups/2021-writeups/union-ctf/nutty.md)
- [Why is a raven](https://the-winrars.gitbook.io/writeups/2021-writeups/union-ctf/why-is-a-raven.md)