Cookie Policy
Which cookies set foot on your browser when you visit Unblocked Chess, and what you can do about them.
Last updated: June 15, 2026
What is a cookie?
A cookie is a small text file stored on your device by your browser when you visit a website. Cookies are used to remember settings, measure traffic, and (most relevantly for us) deliver ads. Most cookies last only as long as your browser session; some persist for longer.
Our own cookies
Unblocked Chess does not set any of its own tracking cookies. The chess game stores its current state in your browser's memory only — when you close the tab, the state is gone. We don't have a sign-in system, so there are no session cookies.
Third-party cookies on this site
Google AdSense
Google uses cookies to serve ads based on your prior visits to this website and other websites. These cookies enable Google and its partners to:
- Show ads relevant to your interests
- Limit how many times you see the same ad
- Measure the effectiveness of ad campaigns
- Detect and prevent click fraud
The main cookie used by Google AdSense is the DoubleClick cookie (set on the doubleclick.net domain). Google's full list of advertising cookies is documented at policies.google.com/technologies/types.
Google Analytics 4
We use Google Analytics 4 to understand how visitors use the site — which pages are popular, where visitors come from, and how long they stay. Google Analytics sets cookies such as _ga, _ga_*, and _gid on your device for these purposes. We do not use this data for advertising. These cookies typically expire within two years. You can opt out of Google Analytics tracking by installing the Google Analytics Opt-out Browser Add-on.
Third-party requests
We deliberately keep third-party requests to a minimum. The chess engine, the board, the puzzle sets and the piece graphics are all served from our own domain — no external JavaScript library or image CDN is involved in playing a game on this site.
The one remaining third-party asset is our web fonts, which load from Google Fonts. That does not set cookies, but Google receives your IP address as part of serving the font file. If the fonts fail to load for any reason, the site falls back to your device's own fonts and everything still works.
Your consent choices
The first time you visit, we ask whether you want to allow analytics and advertising cookies. Until you choose, those categories are switched off — we use Google Consent Mode, which instructs Google's tags not to write those cookies before you have agreed.
Your choice is stored locally in your browser under the key uc_consent. That is browser storage rather than a cookie, and it never leaves your device. You can change your decision at any time using the Cookie Settings link in the footer of every page, or by clearing your browser storage for this site.
If you choose "Essential only": no analytics or advertising cookies are set, and the site works exactly as it does otherwise. Nothing on this site is gated behind accepting cookies.
Cookie summary
| Cookie | Provider | Purpose | Duration |
|---|---|---|---|
NID, IDE, DSID | Ad personalization, fraud prevention | Up to 2 years | |
_ga | Google Analytics | Distinguish unique visitors | 2 years |
_gid | Google Analytics | Distinguish unique visitors | 24 hours |
_ga_0XTSVHJ4GH | Google Analytics 4 | Persists session state | 2 years |
Exact cookies set may vary based on Google's current implementation.
How to control cookies
Browser settings
You can block all cookies, accept only first-party cookies, or delete cookies on demand through your browser settings:
- Cookie controls in Chrome
- Cookie controls in Firefox
- Cookie controls in Safari
- Cookie controls in Edge
Blocking cookies won't break Unblocked Chess. The chess game still works perfectly without any cookies.
Ad personalization opt-out
To turn off personalized advertising specifically (while keeping general ads):
- Google Ads Settings — turn off Ads Personalization
- aboutads.info/choices — opt out of multiple advertising networks at once
- youronlinechoices.com — European opt-out portal
Changes to this policy
If we change which cookies we use, we'll update this page. Check the "Last updated" date at the top.
Questions
Email info@unblockedchess.com if anything here is unclear.