Privacy Policy

1. Introduction

Welcome to Chess Pro ("we", "our", or "us"). We are committed to protecting the privacy, security, and personal data of our users worldwide. This Privacy Policy details our practices concerning the collection, usage, disclosure, and protection of information obtained through our mobile application for Android and iOS, our website, and our multiplayer chess services.

By downloading, accessing, or playing Chess Pro, you acknowledge that you have read and agreed to the data practices described herein.

2. Information We Collect

We only collect information necessary to provide an authentic, competitive, and secure chess gaming platform:

• Account Registration & Profile Information: Display name, email address, password hash (securely encrypted using bcrypt), chosen avatar or profile image reference, country preference, and account registration timestamp.
• Chess Game & Gameplay Data: Complete move sequences (in Standard Algebraic Notation / FEN format), game results (wins, losses, draws), time control preferences, timestamps of moves, player ratings (Elo/Glicko style), game duration, captured pieces, and tournament or matchmaking records.
• Leaderboard & Ranking Records: Global ranking score, win-loss streaks, total games played, and competitive badges earned.
• Technical & Device Data: Mobile device operating system version (iOS/Android), application build version, unique pseudonymous installation ID, IP address (used strictly for geolocation matchmaking and fraud/abuse prevention), and network connectivity status.
• Authentication Tokens: Cryptographically signed JSON Web Tokens (JWT) used to maintain authenticated sessions and protect against unauthorized access.

3. How We Use Your Information

We process your data for the following legitimate purposes:

• Facilitating real-time online chess multiplayer matchmaking, game room generation, and synchronized move distribution.
• Verifying chess move legality using our server-authoritative chess engine to detect fair play violations and prevent cheat software.
• Calculating and updating player ratings, win/loss statistics, and global leaderboards.
• Securing your account, authenticating login sessions, and preventing unauthorized access or credential stuffing.
• Providing customer assistance, password recovery, and fulfilling account deletion requests.

4. Data Storage and Security

We implement industry-standard administrative, physical, and technical security safeguards to safeguard your personal information:

• Transport Layer Security: All API communications between your mobile device and our backend servers utilize encrypted TLS/HTTPS protocols.
• Password Protection: Passwords are never stored in plaintext; they are salted and hashed using industry-standard bcrypt encryption.
• Database Protection: Our MongoDB database clusters are hosted in secure, access-controlled virtual private clouds with strict role-based access restrictions and firewalls.
• Session Isolation: Short-lived access tokens and protected refresh tokens prevent session hijacking.

5. Data Retention & Account Deletion

We retain your personal data for as long as your account remains active. You possess the absolute right to delete your account at any time:

• You can initiate an instant account deletion directly inside the Chess Pro app via Settings → Account → Delete Account.
• Alternatively, you can submit a deletion request via our dedicated Account Deletion Policy & Web Request Portal.
• Upon account deletion, all personal identifiers (email, password hash, profile avatar, active tokens) are immediately and permanently erased from our primary database.
• Completed match records may be retained in anonymized format (displaying opponent as "Deleted Player") to preserve the statistical rating integrity of remaining players.

6. International Privacy Rights (GDPR, CCPA, DPDP)

Depending on your geographic jurisdiction, you have specific rights under data protection legislation, including:

• Right to Access: Request a copy of the personal information we hold about you.
• Right to Rectification: Request correction of inaccurate profile data.
• Right to Erasure (Right to be Forgotten): Request the permanent deletion of your account and personal data.
• Right to Data Portability: Request export of your match history in standard format.
• Right to Withdraw Consent: Revoke consent for optional data processing at any time.

7. Children's Privacy

Chess Pro does not knowingly solicit or collect personally identifiable information from children under the age of 13 (or under 16 in the European Economic Area). If you are a parent or guardian and discover that your child has provided personal information without consent, please contact us immediately to have the data removed.

8. Google AdSense, Cookies & Third-Party Advertising

We use third-party advertising companies, specifically Google AdSense, to serve advertisements when you visit our website. These companies may use information about your visits to this and other websites in order to provide relevant advertisements about goods and services of interest to you.

• Third-Party Vendors & Cookies: Third-party vendors, including Google, use cookies to serve ads based on a user's prior visits to your website or other websites on the Internet.
• Google Advertising Cookies: Google's use of advertising cookies enables it and its partners to serve ads to our users based on their visit to our site and/or other sites across the World Wide Web.
• Personalized Ads Opt-Out: Users may opt out of personalized advertising at any time by visiting Google Ads Settings. Alternatively, users can opt out of a third-party vendor's use of cookies for personalized advertising by visiting www.aboutads.info.
• Consent Mechanism: If you are browsing from the European Economic Area (EEA), the UK, or other applicable jurisdictions, our site provides a cookie consent manager enabling you to customize or reject non-essential advertising and analytics cookies.

9. Contact & Business Details

If you have any questions, inquiries, or privacy concerns regarding this policy, please contact our Data Protection Officer:

• Application: Chess Pro (com.chesspro.game)
• Website: Chess Pro Official Web Portal
• Privacy Officer Email: support@chesspro.game
• Contact Form: Available directly on our homepage

We respond to all verified privacy and deletion inquiries within 30 calendar days.