Terms of Service

Acceptance of Terms

By accessing or using OpChess (“the Service”), you agree to be bound by these Terms of Service.

If you do not agree, you may not use the Service.

Description of Service

OpChess is an interactive chess exploration platform built to help players navigate the evolving landscape of chess positions, from well-studied openings to unexplored lines.

The Service allows users to explore structured position trees, create and manage accounts, customize their experience, and access both free and premium features. The free version of the Service may include advertisements.

The Service evolves over time, and features may be added, modified, or removed as the platform expands.

User Accounts

To access certain features, you may be required to create an account. You agree that:

• You are responsible for maintaining the confidentiality of your login credentials
• You are responsible for all activity under your account
• You will provide accurate information when registering

We reserve the right to suspend or terminate accounts that violate these Terms.

Acceptable Use

You agree not to:

• Attempt to exploit vulnerabilities or gain unauthorized access
• Scrape, copy, or automate large-scale data extraction from the Service
• Interfere with or disrupt the operation of the platform
• Use the Service for unlawful purposes

We reserve the right to restrict access if misuse is detected.

Intellectual Property

Chess moves, game notation, and opening classifications are factual information and may originate from public domain or widely available sources.

However, the OpChess platform, including its interface design, structure, and implementation, is the intellectual property of OpChess.

Licensed assets, such as chess piece designs under MIT license, remain subject to their respective licenses.

You may not copy, reproduce, or redistribute substantial portions of the Service without permission.

Disclaimers

The Service is provided “as is” and “as available” without warranties of any kind.

We do not guarantee:

• The accuracy of chess evaluations or position classifications
• Continuous availability of the Service
• That the Service will be error-free

Chess is not a solved system, and the information presented reflects structured exploration rather than certainty.

Chess engine evaluations and position data are informational and should not be relied upon as professional advice.

Limitation of Liability

To the maximum extent permitted by law, OpChess shall not be liable for:

• Any indirect, incidental, or consequential damages
• Loss of data
• Loss of business or opportunity
• Decisions made based on information from the Service

Use of the Service is at your own risk.

Advertisements and Third-Party Services

The free version of OpChess may display advertisements provided by third-party advertising networks such as Google AdSense, PropellerAds, or Media.net.

These third parties may use cookies or similar technologies to deliver relevant advertisements.

OpChess is not responsible for the content of third-party advertisements. For more information, please refer to the Privacy Policy.

Changes to These Terms

We may update these Terms from time to time to reflect changes in the Service or legal requirements.

Continued use of OpChess after updates become effective constitutes acceptance of the revised Terms.

Contact

If you have questions about these Terms, please contact: