Hidden Rule
hidden-rule-game.com
Probe a secret number rule by trying values up to 999 and seeing which fit, then show you have cracked it on a closing exam, plus a two-rule bonus round.
- New puzzle
- DailyReset time not published
- Category
- Math & Logic
- Price
- FreeNo account needed
- Plays on
- Web browserIn the browser, nothing to install
- Site
- hidden-rule-game.com
- Link checked
- Nov 4, 2026
