Contact and corrections

For teaching corrections, rule questions, technical issues, privacy requests or partnership inquiries, contact the site's maintainer at sundada032@gmail.com.

Please include the page address, lesson or puzzle ID, the starting position and the move coordinates that reproduce the issue. For an article correction, identify the title and paragraph. Screenshots and relevant references can help; remove personal information before sending them.

Reports are reviewed as capacity allows, and further details may be requested to reproduce a problem. We do not promise an acknowledgement, resolution or individual reply within a fixed period. Applicable legal deadlines for privacy requests are separate from this general feedback process.

Do not send passwords, private room seat credentials or identity documents.

← Return home