Contact
We want to hear about mistakes in a square, a formula or an explanation, and about topics you would like covered.
Contact details
A public contact address has not been published yet, and this page has no form. When one is added it will appear here, and this page will be updated.
Reporting a mistake
When you can contact us, please include:
- the address of the page;
- the grid, order or numbers you entered, if a tool was involved;
- what you expected and what you saw.
Correction policy
If a square, sum, count or explanation is wrong, we correct it on the page and change its “Last updated” date. Facts we cannot confirm are left off the page. Read more about how results are checked on the about page.
See also the privacy policy, the terms of use and the home page.