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Every CTF
2021weight 20.75Byt3Scr4pp3rs

Incognito 2.0

12 challenges with 14 published community solutions between them. Solution links go to CTFtime’s task page, which aggregates every writeup for a challenge - individual blog posts rot, the aggregator does not.

Full task list on CTFtime

Misc11

Everything that fits no other box: esolangs, puzzles, scripting exercises, and the jail escapes that have not yet earned their own category.

Web1

Reach data or functionality the application meant to keep from you - through its inputs, its tokens, or its trust in the client.

Other 2021 events