For writers and teachers # Put a daily puzzle on your site > Add a free, ad-free daily puzzle card from Crux to your blog, newsletter or class page: one line of HTML, no tracking, no cookies. Run a blog, a newsletter, a library or a class page? Add the Crux daily puzzle card. It links your readers to the free puzzles that play in any browser (Words of Hanoi, Atlas Streak, The Polyglot and Insane Pour), with no ads. The card itself sets no cookies, runs no script and never changes size. ## The code Paste this where you want the card to appear: `` You can also link to a single game: [crux.quest/hanoi](https://crux.quest/hanoi) for a daily word sort, [crux.quest/atlas](https://crux.quest/atlas/) for a map game, [crux.quest/polyglot](https://crux.quest/polyglot) for a language quiz. Each is free to play with no sign-up. ## For a newsletter Email clients do not run frames, so link the card instead: "Today's free puzzle: https://crux.quest/hanoi". The page shows a share card in most email and chat apps. ## The rules - Free for any site, commercial or not. No sign-up and no attribution needed beyond the card itself. - The card loads only from crux.quest and sets no cookies. - Crux is rated 13+ on the App Store; the browser games have no chat and no purchases. Questions or a request for a different size: [support@crux.quest](mailto:support@crux.quest). Get Crux Free on iPhone and iPad. No ads. Last checked 2026-11-06. Spot a mistake? [support@crux.quest](mailto:support@crux.quest)