Riddle of the Day
acertijodeldia.com
One logic puzzle a day, such as a classic cryptarithm where letters stand for digits, with typed answers checked, hints, a tutor and full worked solutions.
- New puzzle
- DailyReset time not published
- Category
- Math & Logic
- Price
- FreeNo account needed
- Plays on
- Web browserIn the browser, nothing to install
- Site
- acertijodeldia.com
- Link checked
- Nov 4, 2026
