# jailCTF 2025

Link: [https://ctf.pyjail.club/challs](<https://ctf.pyjail.club/challs>)

CTFTime: [https://ctftime.org/event/2737](<https://ctftime.org/event/2737>)

Offical Writeup: [https://github.com/jailctf/challenges-2025](<https://github.com/jailctf/challenges-2025>)

Result: 1595 Points, 14th Place

Solved Challenges:

- [asmaas](<https://jia.je/ctf-writeups/2025-10-04-jailctf-2025/asmaas.html>)
- [battlecode](<https://jia.je/ctf-writeups/2025-10-04-jailctf-2025/battlecode.html>)
- [blindness](<https://jia.je/ctf-writeups/2025-10-04-jailctf-2025/blindness.html>)
- [calc defanged](<https://jia.je/ctf-writeups/2025-10-04-jailctf-2025/calc-defanged.html>)
- [computer-monitor](<https://jia.je/ctf-writeups/2025-10-04-jailctf-2025/computer-monitor.html>)
- [dc jail](<https://jia.je/ctf-writeups/2025-10-04-jailctf-2025/dc-jail.html>)
- [modelscanjail](<https://jia.je/ctf-writeups/2025-10-04-jailctf-2025/modelscanjail.html>)
- [rustjail](<https://jia.je/ctf-writeups/2025-10-04-jailctf-2025/rustjail.html>)

Not solved in competition:

- [brainfudge](<https://jia.je/ctf-writeups/2025-10-04-jailctf-2025/brainfudge.html>)
- [flag lottery](<https://jia.je/ctf-writeups/2025-10-04-jailctf-2025/flag-lottery.html>)
- [impossible](<https://jia.je/ctf-writeups/misc/pyjail/jailctf-2025-impossible.html>)
- [one](<https://jia.je/ctf-writeups/misc/pyjail/jailctf-2025-one.html>)
- [primal](<https://jia.je/ctf-writeups/misc/pyjail/jailctf-2025-primal.html>)
- [seven7seven](<https://jia.je/ctf-writeups/2025-10-04-jailctf-2025/seven7seven.html>)

Won writeup prize:

```
Congratulations to the writeup winners!

Best unintended solution ($100): @lynn | https://gist.github.com/lynn/bfd7a64c6da4d6a4041aedf48e0fb741

Normal writeups ($50 each, and in no particular order so you should read them all):
@jiegec | https://jia.je/ctf-writeups/2025-10-04-jailctf-2025/
@mji | https://mji.mataroa.blog/blog/jailctf-2025/
@bulmenisaurus | https://bulmenisaurus.github.io/pyjail2025-writeup/
@yodi555 | https://medium.com/@yoavsh97/jailctf-2025-impossible-writeup-864af327045f
@joinmatrix | https://gist.github.com/ndren/1aeb22d0c389e991a46e47e5a3f13f3a
@joseph | https://jsur.in/posts/2025-10-08-jailctf-2025-stupidcplusplus
@Ench Lolz | https://github.com/EnchLolz/JailCTF-25/blob/main/flag_lottery.md
@Neobeo | https://adib.au/2025/mathjail2/
@Alexis | https://writeups.fr/wu/primal.html
```