Terms of use

Effective: August 29, 2026.

Sudoku0 is provided for personal entertainment and logical practice. The service is provided as available without a guarantee of uninterrupted access, preservation of local browser data, or suitability for a particular purpose.

Do not misuse the service, attempt to disrupt its infrastructure, or falsely imply affiliation with Sudoku0. Puzzle and interface defects may be reported to hello@sudoku0.com.

Clearing browser data, changing devices, or using private browsing can remove local progress and statistics. The current service does not provide cloud backup.