Muhammad Adib Surani

Hello world, I’m Adib aka @Neobeo. Mathematician, puzzle hunter, and cryptography enthusiast. And father to a daughter with Rett Syndrome.

Recent Posts

Write-up for mathjail2

7 minute read

This is a write-up for a crypto/golf challenge from jailCTF 2025 called mathjail2.

Write-up for lance-hard?

13 minute read

This is a write-up for an insanely difficult crypto challenge from KalmarCTF 2025 called lance-hard?. (Yes, the question mark is part of the challenge name.)

Author’s write-up for FlagHash

7 minute read

This is the official write-up for the crypto challenge FlagHash from vsctf, written by yours truly.

Climbing Snowdon

2 minute read

Croeso i Gymru! Well now, I’m Snowden, a bit of a cheeky Welsh hacker, I am.