Use this page to contact the Sudoku Online team about technical problems, account or privacy requests, content corrections, or general website feedback. Please never send your password or other secret credentials.
Support email: not published yet. The site administrator can set a public address in Settings → General → Public support email.
Technical and gameplay support
For a bug or game issue, include enough detail for us to reproduce the problem. Helpful information includes:
- the page URL and game mode (Classic, Killer, Daily, or Tournament);
- the selected difficulty and what you expected to happen;
- the browser and device you were using;
- the steps that led to the problem;
- a screenshot when it helps explain a visual or layout issue.
Account and privacy requests
For account-related requests, contact us from the email address associated with your account whenever possible. Some gameplay data can be reset directly from the account page. For broader privacy questions, access/correction requests, or deletion requests that cannot be completed from the interface, contact support and review our Privacy Policy.
Content corrections
If a Sudoku guide contains an unclear rule, incorrect example, broken internal link, outdated explanation, or translation problem, send the URL and describe the part that should be reviewed. See the Content Correction Policy for how editorial reports are assessed and updated. Editorial corrections are handled separately from game-result disputes.
Business and legal contact
For partnership, copyright, legal, or other formal website matters, use the same published support channel and make the purpose clear in the subject line. Please also review the Terms of Use before contacting us about normal use of the service.
Response and security
We may need additional information to verify a report or account request. Do not send passwords, authentication cookies, private keys, payment credentials, or other secrets. Response times can vary depending on the type and complexity of the request.