ilsudoku.it

Cookie Policy

This Cookie Policy explains how ilsudoku.it uses cookies and similar browser storage technologies. By using this website, you consent to the use of necessary cookies as described below. Analytics cookies are only used with your explicit consent.

What Are Cookies

Cookies are small text files placed on your device by a website. We also use localStorage, a browser storage mechanism that functions similarly but stays on your device and is never transmitted to servers automatically.

Necessary Cookies & Storage

These are required for the website to function correctly. They cannot be disabled.

  • Cookie consent preferences — remembers your cookie choices so the banner is not shown repeatedly.
  • Game progress (localStorage) — saves your current puzzle state, timer, and move history so you can resume later.
  • Daily puzzle progress (localStorage) — saves progress on the daily challenge for each difficulty level.
  • Theme preference (localStorage) — remembers your chosen color theme.
  • Language preference (localStorage) — remembers your selected language.
  • Input mode (localStorage) — remembers whether you prefer “digit first” or “cell first” input.
  • Layout preference (localStorage) — remembers your preferred layout (bottom or side controls).

All necessary data is stored locally on your device and is never transmitted to our servers.

Analytics Cookies (Consent Required)

When you consent to analytics cookies, we use PostHog (EU region) to understand how visitors use the site. PostHog may set cookies and use localStorage to maintain an anonymous session identifier. This helps us identify usage patterns, track errors, and improve the game experience.

A small percentage of sessions (approximately 5%) may be recorded for quality improvement purposes. These recordings capture gameplay interactions but do not contain personal information.

Analytics data is processed and stored in the European Union (PostHog EU region: eu.i.posthog.com). No analytics data is sent to servers outside the EU.

Managing Your Preferences

You can change your cookie preferences at any time by clicking the cookie settings link in the website footer. You can also clear all locally stored data (game progress, preferences) by clearing your browser’s site data for this domain.