# NiceTryGPT: Less pattern matching. More actual hacking.

> Source: <https://dev.to/aleff/nicetrygpt-less-pattern-matching-more-actual-hacking-kie>
> Published: 2026-09-20 19:19:09+00:00

I built NiceTryGPT, an open-source project for CTF authors who want to make cheap LLM shortcuts less effective without making challenges harder or more annoying for humans.

The idea is simple:

«Increase uncertainty, not complexity.»

NiceTryGPT keeps the same vulnerability and learning objective, but removes obvious patterns that can turn a challenge into a one-shot LLM answer.

Current examples include IDOR, path traversal and SQL injection.

I'm not trying to make CTFs “AI-proof” — just a little less about pattern matching and a little more about actual hacking. 😄

GitHub:

[https://github.com/aleff-github/NiceTryGPT](https://github.com/aleff-github/NiceTryGPT)

Project page:

[https://aleff-github.github.io/NiceTryGPT/](https://aleff-github.github.io/NiceTryGPT/)

Feedback from CTF players and authors is very welcome.

#showdev #cybersecurity #ai #opensource