I spy with my magic-eye a flag!
Note: FaZe Apex helped me learn this trick
Note: Wrap what you get with UMDCTF-{}
We’re given a PNG that looks like a 3D stereographic image:
We can cross our eyes and see our flag, visualized here with the help of an online tool:
Our flag: UMDCTF-{th15_15_b14ck_m4g1k}.