Terms

Shikaku is a free daily rectangle-division puzzle. A new puzzle is issued once per UTC day; everyone who plays that day gets the same one. We may change, pause, or discontinue the game, a mode, or a feature at any time, including without notice — this is a small, independently run project, not a service with an availability guarantee.

There's no sign-up. Puzzle progress stays in your browser — see the privacy page for what that means. Clearing site data, or switching devices, starts you over; we can't restore a streak or a personal best.

Shikaku may show ads served by Google AdSense to keep the game free. Ads are subject to Google's own terms and, where required, your consent choice — see the cookies page. We don't control what any individual ad contains.

The Shikaku name, design, and game logic belong to its operator. You're welcome to share your own results publicly; that doesn't transfer any other rights in the game itself.

Shikaku is provided "as is," without warranties of any kind, express or implied, including fitness for a particular purpose or uninterrupted, error-free operation. It's a hobby-scale, self-hosted project — treat it accordingly.

To the extent permitted by law, Shikaku's operator isn't liable for any indirect, incidental, or consequential loss arising from your use of, or inability to use, the game.

We may update these terms as the game changes; the date above reflects the last edit. Continuing to play after a change means you accept the updated terms.

These terms are governed by the laws applicable to Shikaku's operator, without regard to conflict-of-law rules, except where local consumer-protection law gives you rights these terms can't override.