> For the complete documentation index, see [llms.txt](https://jonghan.gitbook.io/ctf-writeups/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://jonghan.gitbook.io/ctf-writeups/readme.md).

# About

## About the writeups

Some writeups are very detailed as they are aimed towards helping beginners in those areas.

## 2025

| CTF                                              | Format   | Grouping   | Position |
| ------------------------------------------------ | -------- | ---------- | -------- |
| [Flare-On 12](/ctf-writeups/2025/flare-on-12.md) | -        | Individual | 41st     |
| [CDDC Finals](/ctf-writeups/2025/cddc-finals.md) | Jeopardy | Team       | -        |

## 2024

| CTF                                         | Format   | Grouping | Position |
| ------------------------------------------- | -------- | -------- | -------- |
| [UIUCTF](/ctf-writeups/2025/cddc-finals.md) | Jeopardy | Team     | 100th    |

## 2023

<table><thead><tr><th width="186">CTF</th><th>Format</th><th>Grouping</th><th>Position</th></tr></thead><tbody><tr><td><a href="/pages/SyzS6R5BGZhH2PW2a4SE">CDDC CTF</a></td><td>Jeopardy</td><td>Team</td><td>1st</td></tr><tr><td><a href="/pages/pdxR4EtpbQmH6vde3xO3">angstrom CTF</a></td><td>Jeopardy</td><td>Team</td><td>-</td></tr><tr><td><a href="/pages/jgZldz7OntQg6zdaZEne">Lag and Crash</a></td><td>Jeopardy</td><td>Team</td><td>1st</td></tr><tr><td><a href="/pages/iJ7PbRtuhIW4jt3svDsm">RITSEC CTF</a></td><td>Jeopardy</td><td>Team</td><td>27th</td></tr></tbody></table>

## 2022

| CTF                                                                | Format   | Grouping | Position |
| ------------------------------------------------------------------ | -------- | -------- | -------- |
| [NahamCon EU CTF 2022](/ctf-writeups/2022/nahamcon-eu-ctf-2022.md) | Jeopardy | Team     | 26th     |
| [STANDCON 2022](/ctf-writeups/2022/standcon-2022.md)               | Jeopardy | Team     | 5th      |

##

## Author Writeups

### 2022

| CTF                                                                                      | Format   | Other Info                       |
| ---------------------------------------------------------------------------------------- | -------- | -------------------------------- |
| [NYP Infosec CTF December 2022](/ctf-writeups/authored/nyp-infosec-ctf-december-2022.md) | Jeopardy | 2nd time creating CTF challenges |