Last updated: November 5, 2026
A cookie is a small text file placed in your browser when you visit a site. Local storage and session storage are similar areas in your browser that hold small items such as settings; the cache (Cache Storage) keeps the site's files on your device so it opens fast and offline. This policy covers all of them.
All of these are first-party items: they belong only to this site and are not shared with another company. Because they are strictly necessary to provide the service you asked for, or only carry the communication, they are among the items that need no explicit consent (Criterion A and B) in the Personal Data Protection Authority's Guide on Cookie Practices.
Session cookies are created only when you sign in to your account or save a game as a guest.
| Name | Type | What it is for | Duration |
|---|---|---|---|
| access_token | Cookie (httpOnly) | Authenticates your session. | 15 minutes |
| refresh_token | Cookie (httpOnly) | Renews your session without signing in again each time; deleted when you sign out. | 7 days |
| csrf_token | Cookie | Protects against cross-site request forgery (CSRF). | 7 days |
| NEXT_LOCALE | Cookie | Remembers the language you chose (Turkish or English). | 1 year |
| timur_chess_cookies_consent | Local storage | Remembers that you closed the cookie notice. | 12 months, then the notice is shown again |
| _tamerlane_device_id | Local storage | A random ID that ties the record of games you play as a guest to your device. | Until you delete it |
| _auth_hint | Local storage | Remembers that you may be signed in; avoids unnecessary server requests. | Until you sign out |
| ts:prefs:v1, soundMuted | Local storage | Your game settings: level, colour, board, coordinates, sound, vibration. | Until you delete it |
| ts:ai-game:v1 | Local storage | Your unfinished computer game (so you can carry on where you left off). | Until the game ends |
| ts:learn:v1, ts:tips:v1, ts:puzzles:v1 | Local storage | Your tutorial and puzzle progress (the puzzles you solved, the daily streak) and the tips you have seen. | Until you delete it |
| ts:notices:v1 | Local storage | Remembers which announcements you closed (so the same one does not come back). | Until the announcement is taken down |
| ts:install-snoozed, ts:offline-ready | Local storage | Remembers that you postponed the install invitation and that the offline files are ready. | At most 30 days / until you delete it |
| ts:return-url, ts:oauth-nonce, ts:worker-repair, match:* | Session storage | Keeps the page you return to after signing in, a one-time value that confirms a Google sign-in really came from you, the match screen state, and a note that the page was refreshed once because the game engine could not start. | Until the tab is closed |
| ts-build, ts-assets-*, ts-images-*, ts-pages-* | Cache | Keeps the game's files, images, sounds and pages so that it opens offline and loads fast. | Until you delete it (old versions are removed automatically) |
No third-party analytics or measurement service is used on this site; your page views are not sent to any company. How many people use the site, from which country and with which devices is kept only on our own server, without cookies and as anonymous aggregate counts (details in the Privacy Policy).
These counts do not identify you and place nothing in your browser, so they need no permission and no setting to switch them off.
Advertising and marketing cookies, social-media tracking cookies and third-party cookies that profile you across sites are not used on this site.
There is no optional cookie or permission to choose: the necessary ones run the site. Closing the notice at the bottom of the page is remembered in this browser, and the notice is shown again after a year.
In your browser settings you can block cookies or delete site data; if you block the necessary cookies you cannot sign in and your settings will not be saved. Deleting browser data also removes the offline files; they are stored again when you open the game while online.
None of the items in this policy belongs to anyone but this site or sends data to third parties. The site's servers are in Germany (netcup GmbH). For transfers of personal data abroad, your rights and how to apply, see the KVKK privacy notice.
If the cookies and storage items we use change, we update this page and, if needed, ask for your choice again.