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YiChess legal center

Policies for accounts, payments, privacy, fair play, and AI review.

Formal legal pages for YiChess, operated by Vistasense AI Technology Limited. Last updated May 31, 2026.

Contact and Company Information

Last Updated: May 31, 2026

Product / brand: YiChess Product website: https://yichess.com Operator and seller-facing entity: Vistasense AI Technology Limited, a Hong Kong limited company, Company No. 80364727, Business Registration Certificate No. 80364727-000-05-26-8, registered address: Room 1602, 16/F, Wing On Centre, 111 Connaught Road Central, Hong Kong. Support: support@yichess.com

1. General Support

For product support, account access, login issues, technical issues, AI review questions and general questions, contact support@yichess.com.

2. Billing and Refunds

For billing, transaction, subscription, cancellation, refund or invoice questions, contact billing@yichess.com.

3. Privacy Requests

For privacy requests, account deletion, data access, correction, export, objection or cookie questions, contact privacy@yichess.com.

For legal notices, copyright complaints, IP complaints, payment provider inquiries, no-gambling policy reports and platform policy questions, contact legal@yichess.com.

5. Security Reports

For account security or platform security concerns, contact security@yichess.com.

6. Company Information

Operator: Vistasense AI Technology Limited Company No.: 80364727 Business Registration Certificate No.: 80364727-000-05-26-8 Registered address: Room 1602, 16/F, Wing On Centre, 111 Connaught Road Central, Hong Kong Website: https://yichess.com