Terms of Service

Last updated: August 2026

Acceptance

By using Chessyi at chessyi.com, you agree to these terms. If you do not agree, please do not use the service.

Service description

Chessyi provides browser-based chess analysis, training tools, optional cloud storage for saved games, and paid Plus and Pro subscriptions. Features may change as we improve the platform.

Accounts

You are responsible for maintaining the security of your account credentials. You must provide accurate registration information and keep your email address current.

Subscriptions

New accounts receive a 7-day Pro trial. Plus and Pro are paid plans billed monthly or yearly. You can change or cancel from My subscription. Access continues until the end of a paid period after cancellation. Prices are shown in USD on the pricing page.

Acceptable use

• Do not attempt to disrupt or compromise the service
• Do not use automated systems to abuse APIs or authentication
• Do not upload illegal or harmful content

Intellectual property

Chessyi software and branding are owned by Chessyi. Game databases include third-party PGN sources used for educational study. Chess engine software is subject to its respective licenses.

Disclaimer

Chessyi is provided "as is" without warranties. Engine analysis and training tools are for educational purposes; we are not liable for decisions made based on analysis output.

Changes

We may update these terms. Continued use after changes constitutes acceptance.