IMPORTANT! Before any use of the Software specified below, please carefully read the terms of its use contained in this Agreement. Installation, registration, access, or any other commencement of use of the Software signifies the proper conclusion of this Agreement and your full consent to all its terms. If you do not agree to unconditionally accept the terms of this Agreement, you are not entitled to use the Software.

LICENSE AGREEMENT

This License Agreement (hereinafter referred to as the "Agreement") applies to the software program "ChessWin" (commercial designation - Chess.run platform) (hereinafter referred to as the "Software").

1. KEY TERMS

1.1. Licensor — Ruslan Gendik (RU) and/or Maxim Volkovitsky (RU), as the copyright holders of the Software, acting jointly or severally.

1.2. Licensee — any individual or legal entity entitled to use the Software for their own interests in accordance with the requirements of applicable law and this Agreement.

1.3. Software — a set of data and commands presented in an objective form, including source code, databases, audiovisual works, and accompanying documentation, intended for organizing and conducting online chess training, creating chess courses, managing the educational process, and processing service payments.

1.4. Use of the Software — any actions related to the exploitation of the Software's functional capabilities, including accessing it via the Internet, interacting through the API, uploading and/or displaying Content (user materials), launching, or any other operation in the manner prescribed by this Agreement and technical documentation.

1.5. Content — any materials (texts, images, chess games in PGN/FEN format, videos, files, etc.) uploaded by the Licensee or Authorized Users into the Software.

1.6. Authorized User — a user registered by the Licensee in the Software who has logged in at least once.

1.7. Account — a set of data and settings for one copy of the Software with a unique identifier, combining objects and Content for joint display and use.

1.8. Technical Support — activities carried out by the Licensor to ensure the functioning of the Software and provide consulting support to Licensees.

1.9. License Type (Plan) — a set of terms for using the Software (number of Authorized Users, storage volume, features, etc.), published on the Internet at https://chess.run/chess-coach.

1.10. API — an interface for the Software's interaction with third-party applications, available under the terms of this Agreement.

1.11. Registration — an action by the Licensee aimed at creating an Account and/or a user account for an Authorized User.

2. SUBJECT OF THE AGREEMENT

2.1. The Licensor grants the Licensee a non-exclusive right to use the Software within its functional capabilities by accessing the Software via the Internet (SaaS model) solely for the Licensee's own needs, without the right to sublicense.

2.2. The Agreement is considered concluded from the moment of the first use of the Software and is valid for the entire term of the Licensor's exclusive right, provided the Licensee complies with the terms of the Agreement.

2.3. The right to use the Software is granted without territorial restrictions.

3. COPYRIGHTS AND TRADEMARKS

3.1. The Software is an object of copyright (reg. no. 2025610770 dated 14.01.2025). The exclusive rights belong to the Licensor.

3.2. The algorithms, architecture, and source code of the Software are the Licensor's trade secrets. Any use thereof in violation of the terms of the Agreement is considered an infringement of the Licensor's rights.

3.3. This Agreement does not transfer any rights to the trademarks Chess.run, ChessWin, or other marks of the Licensor to the Licensee.

4. TERMS OF USE AND RESTRICTIONS

4.1. The Licensee has the right to:

• Register and create Accounts;
• Upload Content to the Account, provided it does not violate the law and the terms of the Agreement;
• Use the functional capabilities of the Software to the extent provided by the selected License Type.

4.2. The Licensee and Authorized Users are not entitled to:

• Decompile, disassemble, or modify the Software, except as expressly permitted by law;
• Copy, resell, or otherwise transfer rights to the Software to third parties without the Licensor's written consent;
• Perform actions that disrupt the normal operation of the Software or restrict its use by others;
• Conduct mass unsolicited mailings ("spam") using the Software.

4.3. The Content remains the property of the Licensee. By posting Content, the Licensee grants the Licensor a royalty-free license to process, store, back up, and display such Content solely for the purpose of fulfilling this Agreement. The Licensor does not claim any ownership rights to the Content.

4.4. The Licensee is solely responsible for the Content, its compliance with the law, the availability of necessary rights and consents, and for any damage caused by the posting of the Content.

5. ASSIGNMENT (TRANSFER) OF RIGHTS

5.1. The Licensee may make a one-time assignment of their rights and obligations under the Agreement to another person, provided that the latter fully accepts the terms of the Agreement.

5.2. The transfer of rights is carried out after notifying the Licensor and re-registering the Account.

6. LICENSE TYPES

6.1. The list of plans and their terms are published on the website https://chess.run/pricing and may be changed by the Licensor unilaterally with 14 days' notice before the changes take effect.

6.2. The Licensee may be granted a free trial license for a term and on conditions determined by the Licensor.

6.3. The license term begins on the date the Account is created.

6.4. Upon expiration of the paid period, access to the Software may be restricted until the plan is renewed or changed.

7. USAGE PROCEDURE

7.1. Registration: The Licensee must provide accurate data and keep it up to date. The Licensor has the right to block the Account if inaccurate data is discovered.

7.2. Login/Password: The Licensee is responsible for the security of their login credentials.

7.3. API: No more than 7 requests per second are allowed. In case of suspicious activity, access to the API may be restricted.

8. TECHNICAL SUPPORT

8.1. The Licensor provides Technical Support via e-mail at office@chesswin.org and other channels specified on the website.

8.2. To provide support, the Licensor may request technical information about the Licensee's system.

9. LIMITED WARRANTY AND LIABILITY

9.1. The Software is provided "AS IS". The Licensor does not guarantee that the Software will meet the Licensee's expectations.

9.2. The Licensor is not liable for any direct or indirect damages related to the use or inability to use the Software.

9.3. Upon discovery of errors, the Licensor strives to correct them within a reasonable time but does not guarantee the complete absence of errors.

10. PERSONAL DATA PROCESSING

10.1. By accepting the Agreement, the Licensee consents to the processing of personal data to the extent necessary for the performance of the Agreement, in accordance with federal law FZ-152 and (if applicable) GDPR.

10.2. The Licensor takes measures to protect personal data from unauthorized access.

10.3. The Licensee has the right to withdraw consent to the processing of personal data by sending a request to office@chesswin.org. Withdrawal of consent may limit the functionality of the Software.

11. VALIDITY, AMENDMENT, AND TERMINATION

11.1. The Licensor has the right to amend the terms of the Agreement unilaterally. The new version comes into force 14 days after publication at https://chess.run/privacy.

11.2. In case of a breach of the Agreement's terms by the Licensee, the Licensor has the right to terminate the Agreement unilaterally and block access to the Software.

11.3. The invalidity of a part of the Agreement does not entail the invalidity of the Agreement as a whole.

12. ADDITIONAL PROVISIONS

12.1. The Software is not a means of communication and does not provide Internet access services.

12.2. The program code, design, database structure, and other elements of the Software are wholly owned by the Licensor and are not alienated.

12.3. Any notices under the Agreement shall be sent in electronic form to the addresses specified during registration, unless otherwise provided by law.