write-ups-challenges-2024-2025/200B200C/SOLUTION.md

Difficulty

Easy

Category

Miscellaneous

How To Solve

Copy the flag and open it in Vim. You will see that there are a lot of Zero Width Unicode Characters U+200B and U+200C between the letters. Decode every U+200C as a 0 and every U+200B as a 1. Then interpret the obtained row as a sequence of ASCII characters (by converting every 8 bits to an ASCII character) to get the flag. Example write-up script in Racket.

Flag

IGCTF{Th3_0nly_c0rr3ct_fl4g}