Privacy Policy

Welcome to EloGuess. This Privacy Policy explains how EloGuess.com (“EloGuess”, “we”, “our”, or “us”) collects, uses, stores and protects information when you use our chess rating guessing game, including Classic Mode, Exact Mode, Streak Mode, Daily Challenge, EloGuess Duel, Statistics, Achievements, Settings and Leaderboards.

EloGuess is designed to be playable without creating an account, connecting a chess account, or sharing unnecessary personal information. We aim to collect only the information needed to run the game, save your progress, show leaderboards, improve the website and respond to support requests.

1. Who is responsible for your data?

EloGuess.com is responsible for the processing of personal data described in this Privacy Policy.

For questions you can contact us at:

support@eloguess.com

2. Information we collect

Information stored in your browser

EloGuess may store game-related information locally in your browser. This can include:

• your settings, such as autoplay speed and board coordinates;
• your leaderboard display name;
• your selected avatar;
• your unlocked achievements;
• your score history and best scores;
• your Daily Challenge status and streak;
• your local Duel history, wins, losses, and achievement progress;
• your local statistics, such as games played and mode totals.

This local data helps EloGuess remember your preferences and progress without requiring an account. Local browser data stays on your device unless it is submitted to a leaderboard or sent to us through a support message.

Leaderboard information

If you submit a leaderboard score, we may store and display information such as:

• your chosen display name;
• your selected avatar;
• the game mode;
• your score, points, accuracy, streak, or similar game result data;
• your ranked Duel rating, games played, wins, and losses;
• the date and time of the submission;
• technical information needed to prevent abuse, spam, or manipulation of leaderboards.

Leaderboard entries are public. Do not use your real name or any personal information as your display name if you do not want it to be visible to others.

Multiplayer information

When you use EloGuess Duel, we may process the room code, player identifiers, display names, avatars, guesses, HP, match result, Duel rating, rating change, and timestamps needed to run and score the match.

Private rooms are unranked. Ranked Duel results may appear publicly on the Duel leaderboard with your chosen display name and avatar.

Support, bug reports, and feedback

If you contact EloGuess by email or through a feedback or bug-report link, we may process:

• your email address;
• the content of your message;
• screenshots or files you choose to send;
• your browser, device, page URL, game mode, or other technical details you include.

We use this information only to understand your request, reply to you, fix bugs, improve gameplay, and protect the fairness of the game.

Technical and security information

Like most websites, EloGuess and its hosting, database, and infrastructure providers may process basic technical information, such as:

• IP address;
• browser type and version;
• device type;
• operating system;
• referrer information;
• error logs;
• security and anti-abuse signals.

We use this information to keep EloGuess available, secure, fast and fair.

3. Information we do not need

EloGuess does not require:

• your real name;
• your home address;
• payment details;
• private chess account credentials;
• access to your chess.com, Lichess or other chess accounts;
• account registration to play the core game.

Please do not send sensitive personal information unless it is necessary for a support request.

4. How we use your information

We use information for the following purposes:

• to provide and operate EloGuess;
• to save your local progress, settings, achievements and statistics;
• to process and display leaderboard entries;
• to maintain Daily Challenge and leaderboard rules;
• to detect bugs, abuse, spam, cheating, or technical issues;
• to respond to support messages, bug reports and feedback;
• to improve game modes, scoring, user interface, performance, and content quality;
• to comply with legal obligations and protect our rights.

5. Cookies and local storage

EloGuess may use browser storage - such as local storage - to remember your preferences, progress, achievements, statistics, avatar, display name, Daily Challenge status and other game-related settings. This storage is used to make the chess rating guessing game work properly and improve your experience. It is not intended to track you across unrelated websites.

You can delete local EloGuess data by clearing this site’s browser storage in your browser settings. If you clear browser data, use a different device, use a different browser, or play in private/incognito mode, your local progress may be lost.

6. Public leaderboards

Leaderboard entries are meant to be visible to other players. A public leaderboard may show your chosen display name, avatar, mode, score, rank, date and related game result information.

Because leaderboards are public, they may be viewed by other users and may be indexed by search engines. Please choose a display name that you are comfortable sharing publicly.

If you want a leaderboard entry removed or changed, contact us at support@eloguess.com and include enough information for us to identify the entry.

7. When we share information

We do not sell your personal data.

We may share or make information available in the following limited situations:

• Public leaderboard display: leaderboard entries are shown publicly as part of the game.
• Service providers: we may use hosting, database, infrastructure, email, analytics, or security providers to operate EloGuess.
• Legal or safety reasons: we may disclose information if required by law, to protect rights and safety, or to prevent abuse, fraud, cheating, or attacks.

8. International data transfers

EloGuess may use service providers located in different countries. If personal data is transferred outside your country or region, we take reasonable steps to ensure appropriate safeguards are in place where required by applicable data protection law.

9. How long we keep information

We keep personal data only for as long as reasonably necessary for the purposes described in this Privacy Policy.

In general:

• local browser data remains on your device until you delete it or your browser removes it;
• leaderboard entries may remain for as long as the relevant leaderboard or game mode is available, unless removed earlier;
• support emails and feedback may be kept for as long as needed to respond, track bugs, improve the game, or protect EloGuess;
• technical logs are kept only as long as needed for security, debugging, performance and legal purposes.

10. Security

We use reasonable technical and organizational measures to protect information processed by EloGuess. However, no website, database, or internet transmission is completely secure. You should avoid sharing sensitive personal information through display names, feedback messages, bug reports, or screenshots.

11. Your privacy rights

Depending on where you live, you may have the right to:

• request access to personal data we hold about you;
• request correction of inaccurate data;
• request deletion of your data;
• request data portability;

To exercise your rights, contact us at support@eloguess.com.

We may need enough information to verify your request and identify the relevant leaderboard entry, support message, or other data.

12. Changes to this Privacy Policy

We may update this Privacy Policy when EloGuess changes, when we add or remove features, or when legal requirements change. The updated version will be posted on this page with a new “Last updated” date.

13. Contact

For privacy questions, access or deletion requests, leaderboard removal requests, bug reports, or feedback, contact:

support@eloguess.com