Privacy Notice

1. Introduction

Gambit Chess ("we," "our," or "us") operates the website at www.gambitchess.space ("the Service"). This Privacy Notice explains how we collect, use, disclose, and protect your information when you use our Service. We are committed to protecting your privacy and complying with applicable U.S. privacy laws, including the California Consumer Privacy Act (CCPA) and the Children's Online Privacy Protection Act (COPPA).

2. Information We Collect

2a. Information You Provide

• Email address — collected when you register for an account. Used exclusively for marketing communications (product updates, announcements, and similar messages).
• Password — stored in encrypted form. We never store plain-text passwords.
• Display name — optional name you choose during registration.

2b. Information Collected Automatically

• Game data — moves, results (win/loss/draw/resign), timestamps, and game identifiers associated with your account.
• Usage data — pages visited, features used, and general interaction patterns, collected via analytics tools to improve the Service.
• Device and log data — IP address, browser type, operating system, and referring URLs, collected automatically by our servers and third-party services.

2c. Guest Users

If you play without registering, we do not collect any personally identifiable information. Guest game records are stored temporarily and automatically deleted 30 hours after the game link is generated.

3. How We Use Your Information

We use the information we collect to:

• Provide, operate, and maintain the Service.
• Send marketing communications (product updates, new features, announcements) to registered users via their email address. This is the only purpose for which we use your email address.
• Maintain your game history and statistics across sessions and devices.
• Detect and prevent fraud, abuse, or security incidents.
• Analyze usage patterns to improve the Service.
• Comply with legal obligations.

4. We Do Not Sell Your Data

California residents have the right to opt out of the sale of personal information under the CCPA. Because we do not sell personal information, no opt-out mechanism is required; however, you may contact us at any time to confirm this practice.

5. How We Share Your Information

We do not share your personal information with third parties except in the following limited circumstances:

• Service providers — We use Supabase for database and authentication services. These providers process data on our behalf and are contractually prohibited from using your data for their own purposes.
• Advertising — We display ads via Google AdSense, which may use cookies and similar technologies to serve relevant ads. Google's use of advertising cookies is governed by Google's Privacy Policy.
• Legal requirements — We may disclose information if required by law, court order, or governmental authority, or to protect the rights, property, or safety of Gambit Chess, our users, or the public.
• Business transfers — In the event of a merger, acquisition, or sale of assets, your information may be transferred as part of that transaction. We will notify you via email or a prominent notice on the Service before your information becomes subject to a different privacy policy.

6. Data Retention

• Guest game records — deleted automatically 30 hours after the game link is generated.
• Registered user game records — retained for 180 days from the date the record was created, then permanently deleted.
• Account information (email, profile) — retained for as long as your account is active. You may request deletion at any time (see Section 8).

7. Cookies and Tracking Technologies

We use cookies and similar tracking technologies to maintain your session, remember your preferences, and analyze Service usage. Third-party services (such as Google AdSense and analytics providers) may also set cookies on your device. You can control cookies through your browser settings; however, disabling cookies may affect certain features of the Service.

8. Your Rights and Choices

Depending on your location, you may have the following rights regarding your personal information:

• Access — Request a copy of the personal information we hold about you.
• Correction — Request correction of inaccurate or incomplete information.
• Deletion — Request deletion of your personal information and account.
• Opt out of marketing emails — You may unsubscribe from marketing communications at any time by clicking the "unsubscribe" link in any email we send, or by contacting us directly.
• Data portability — Request a machine-readable copy of your personal data.

To exercise any of these rights, please contact us at www.gambitchess.space. We will respond to verified requests within 45 days as required by applicable law.

9. Children's Privacy

The Service is not directed to children under the age of 13. We do not knowingly collect personal information from children under 13. If we become aware that we have inadvertently collected personal information from a child under 13, we will take steps to delete that information promptly. If you believe we may have collected information from a child under 13, please contact us immediately.

10. Data Security

We implement industry-standard technical and organizational measures to protect your personal information against unauthorized access, alteration, disclosure, or destruction. These measures include encrypted data transmission (HTTPS), encrypted password storage, and access controls. However, no method of transmission over the Internet or electronic storage is 100% secure, and we cannot guarantee absolute security.

11. California Privacy Rights (CCPA)

California residents have specific rights under the California Consumer Privacy Act (CCPA):

• The right to know what personal information is collected, used, shared, or sold.
• The right to delete personal information held by us.
• The right to opt out of the sale of personal information. We do not sell personal information.
• The right to non-discrimination for exercising your CCPA rights.

12. Changes to This Privacy Notice

We may update this Privacy Notice from time to time. We will notify registered users of material changes by updating the Effective Date at the top of this page and, where appropriate, by sending an email notification. We encourage you to review this Privacy Notice periodically to stay informed about how we protect your information.

13. Contact Us

If you have questions, concerns, or requests regarding this Privacy Notice or our data practices, please contact us at: www.gambitchess.space