> For the complete documentation index, see [llms.txt](https://ctf.zeyu2001.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ctf.zeyu2001.com/2021/picoctf.md).

# picoCTF 2021

## Web Exploitation

* [It Is My Birthday (100)](/2021/picoctf/it-is-my-birthday-100.md)
* [Super Serial (130)](/2021/picoctf/super-serial-130.md)
* [Most Cookies (150)](/2021/picoctf/most-cookies-150.md)
* [Web Gauntlet 2 (170)](/2021/picoctf/web-gauntlet-170-+-300.md)
* [Startup Company (180)](/2021/picoctf/startup-company-180.md)
* [X marks the spot (250)](/2021/picoctf/x-marks-the-spot-250.md)
* [Web Gauntlet 3 (300)](/2021/picoctf/web-gauntlet-170-+-300.md)

## Cryptography

* [Easy Peasy (40)](/2021/picoctf/easy-peasy-40.md)
* [Mini RSA (70)](/2021/picoctf/mini-rsa-70.md)
* [Dachshund Attacks (80)](/2021/picoctf/dachshund-attacks-80.md)
* [No Padding, No Problem (90)](/2021/picoctf/no-padding-no-problem-90.md)

## Forensics

* [Trivial Flag Transfer Protocol (90)](/2021/picoctf/trivial-flag-transfer-protocol-90.md)
* [Wireshark twoo twooo two twoo... (100)](/2021/picoctf/wireshark-twoo-twooo-two-twoo...-100.md)
* [Disk, Disk, Sleuth! (110)](/2021/picoctf/disk-disk-sleuth-110-+-130.md)
* [Disk, Disk, Sleuth! II (130)](/2021/picoctf/disk-disk-sleuth-110-+-130.md)

## Binary Exploitation

* [Stonks (20)](/2021/picoctf/stonks-20.md)