Privacy Policy
Last updated: 8 November 2026
This Privacy Policy explains how Sudoku Club ("we", "us") handles information when you use our website.
Information we collect
- Account details you provide, such as your name, email address and optional profile photo.
- Basic profile information from Google if you choose to sign in with Google (name, email and profile picture).
- Game activity, such as puzzles played, completion times, hints used and points earned.
- Technical information, such as browser type and general usage data.
How we use information
- To provide and run your account, save progress and display leaderboards.
- To manage points and prize claims.
- To improve and secure the website.
Public information
If you save a result, your profile name, photo and time may appear on public leaderboards.
Cookies and advertising
We use browser storage to keep you signed in and save progress. We may show adverts from third parties such as Google AdSense, which may use cookies according to their own policies.
Sharing
We do not sell your personal information. We share it only with service providers that help us run the website, or where required by law.
Your choices
You can play as a guest without an account. Account holders may request access to, correction of or deletion of their information by contacting us.
Changes
We may update this policy from time to time. Changes take effect when posted on this page.
Contact
Questions about this policy can be sent to nilawanrainbow@gmail.com.