Submit a Theory
Have an idea about how K4 works? We want to hear it. Every novel theory submitted here is read by a human and tested on a 28-core server against the actual ciphertext. If your idea hasn't been tried before, we will run it.
Your idea stays yours. You retain all rights to everything
you submit. We do not claim any ownership of your work.
If your idea leads to the solution of K4 and you’d like to be credited,
include a name or handle in your submission — otherwise it stays anonymous.
We don’t collect emails or require accounts.
See our Terms and Conditions for the full details.
Not ready to submit? You can browse the elimination database and search to check whether your idea has been tested — no submission required.
How it works
- Submit your theory in plain English below.
- Instant check: we'll tell you immediately if this exact approach has already been tested (475 have been so far). No guessing, no gatekeeping. You'll see the specific results.
- Novel ideas get queued: if your theory is new, you'll receive a private status link. Bookmark it.
- We test it: a real person reviews your submission and runs it through our framework. You can check your status link anytime to see: pending, testing, or completed with detailed results.
Your submission is anonymous. We don't collect names or emails, just the theory and a private token so you can check back.
Want to see what's already been tried? Browse the elimination database. It might spark a new idea.