Legal / Updated 1 January 2026

Cookies &
browser storage.

The supplied puzzle pages do not need tracking cookies, an account, or a saved score to work.

What is a cookie?

A cookie is a small value that a website can ask a browser to store and send with later requests. Local storage is a separate browser feature that can retain values on a device without automatically sending them with every request. Both can be used for useful preferences or for tracking, depending on their purpose and implementation.

What these pages use

The supplied HTML and JavaScript do not set cookies, use local storage, or use session storage. There are no analytics tags, advertising pixels, social embeds, or third-party font requests in these files. Puzzle inputs are checked in browser memory, and the site does not save a history of your attempts.

The visual palette is calculated from a fixed topic string. It is not a visitor identifier and does not require a stored preference. Navigation state and expanded puzzle explanations last only as part of the current page's state, subject to your browser's normal page-restoration behavior.

Contact drafts, clipboard, and downloads

Creating a contact draft places text on the current page. The copy action asks your browser to write that text to your clipboard. The download action creates a plain-text file on your device. These actions are not cookies and do not send a message. Your clipboard manager, browser autofill, device backup, or download history may retain information independently of this site.

Hosting and separately managed features

A hosting or security service can use cookies or technical logs independently of the code in these pages. A deployment may also provide a separately managed consent interface. Any such interface should identify the actual services, purposes, and choices it controls. This notice does not invent cookie names, expiry periods, or consent records for services not defined in the supplied site code.

Where optional services are introduced, the relevant information and controls should be updated before those services operate. Declining optional storage should not prevent access to the core educational text and local puzzle checks.

Your browser controls

You can inspect site data, block cookies, clear stored values, and manage clipboard or download permissions through your browser's privacy and site-settings menus. The exact names differ between browsers. Clearing stored consent choices managed outside these pages may cause that service to ask again. Blocking JavaScript disables interactive checks and drafting tools, but the articles and expandable native solution sections remain readable.

Questions

For a question about an observed cookie, include its name, domain, and the page where you saw it, without sending its secret value. Contact [email protected] or use the local draft tool. The Privacy notice explains ordinary network records and email correspondence.