Contact Us
Last Updated: October 2026
We love hearing from fellow puzzle solvers, educators, and web developers! Whether you have spotted a bug, want to discuss a complex deduction technique, or have a partnership suggestion, feel free to reach out.
1. Send a Message Online
Please fill out the form below. We read all incoming messages and will get back to you as soon as possible.
2. Direct Email Contacts
If you prefer reaching out directly from your email client, feel free to use either of our primary channels:
Player Support & Bug Reports
Gameplay, hints & algorithm anomaliesGeneral Inquiries & Privacy
Privacy, partnerships & feedback3. Expected Response Times
As an independent project, inquiries are typically answered within 1 to 2 business days. If reporting a puzzle anomaly, sharing the seed date or puzzle difficulty helps us investigate and resolve it much faster.
4. Frequently Answered Questions
Before sending a message, you may find an instantaneous answer to your question below:
Q: Why did my saved game or statistics reset?
iLoveSudoku stores game state locally in your browser's localStorage. If you browse in Incognito/Private mode, use aggressive browser cleaner extensions, or clear cookies and site data, this local storage is wiped by your browser.
Q: Do your puzzles ever require guessing?
Never. Every single puzzle generated by iLoveSudoku is verified via Donald Knuth's DLX dual-solution validator. There is strictly one unique solution, solvable purely through logical deduction and candidate elimination.
Q: Is iLoveSudoku really 100% free?
Yes! All 6 difficulty levels, print sheets, daily challenges, solver tools, and tournament modes are free forever. We sustain our infrastructure through non-intrusive sponsorships and ethical digital advertising.