HKCERT CTF 2021 Postmortem (IV): The Remaining Ones
![HKCERT CTF 2021 Postmortem (IV): The Remaining Ones](https://mystiz.hk/images/2021-11-18-hkcert-ctf/thumbnail-4.png)
We will cover the remaining challenges I wrote in this part: Flag Checker™, The Wilderness and Potion of Ciphermath.
BSides Ahmedabad CTF 2021 Writeup
![BSides Ahmedabad CTF 2021 Writeup](https://mystiz.hk/images/2021-11-07-bsides-ahmedabad/intermediate-scoreboard.png)
No, we did not win. I see that coming and took a screenshot during the game.
BSides Ahmedabad CTF 2021 is organized by @zer0pts. That implies that players could spend a day happily working on the challenges. I enjoyed working on the challenges a lot. I’ll go through the harder crypto challenges and the reversing challenge called Collapsed License in this blog post.