Terms of Use

Last updated: 2 October 2026

These terms govern ordinary use of the Block Jigsaw website and browser game.

Personal and educational use

You may use Block Jigsaw for personal entertainment and ordinary educational activities. You may link to the public website. Do not attempt to interfere with the service, distribute malicious code, bypass security controls, manipulate advertising activity or use automated systems in a way that harms the site or other users.

Player accounts and public names

An account is optional and is used for competitive features. You are responsible for choosing a public display name that is appropriate and does not impersonate Block Jigsaw staff, expose private information or infringe another person’s rights. Public names or results may be changed or removed when reasonably necessary to operate or protect the service.

Leaderboard fairness

Do not submit fabricated times, manipulate game code to create false results, automate competitive attempts or intentionally bypass validation controls. Block Jigsaw may reject, flag, hide or remove results that appear technically impossible, abusive or inconsistent with fair play. Leaderboard validation reduces casual manipulation but is not guaranteed to detect every method of cheating.

Game availability and generated content

The game may change, be updated, become temporarily unavailable or contain errors. Generated puzzles vary from session to session. Although the generator is designed to create pieces from a complete board, software bugs, browser differences or unexpected conditions can occur.

No professional assessment

Descriptions of spatial reasoning, puzzle strategy or age guidance are general game information. Block Jigsaw is not a medical, psychological, developmental or educational assessment, and results should not be used as a diagnosis or formal measure of ability.

Advertising

Advertising may be provided by third-party services. Users should click an advertisement only when genuinely interested in it. The site does not offer rewards for interacting with ordinary display ads and does not ask users to generate artificial advertising activity.

Intellectual property

The site's original code, interface, written material and branding are protected to the extent provided by applicable law. Third-party assets, services or libraries remain subject to their own terms and licenses.

External services

The site may use Cloudflare for delivery, Supabase for optional authentication and leaderboard storage, Google for optional sign-in, and advertising services if enabled. Those services may be governed by additional terms and policies. Block Jigsaw does not control their availability.

Contact

Questions about these terms can be sent to blockjigsawgame@gmail.com.

Leaderboard integrity

Competitive results may be rejected or removed when timing validation fails, automated abuse is suspected, or a submission appears inconsistent with normal gameplay. Leaderboard placement can change as additional players submit results. Achievement and weekly ranking rules may be adjusted as the competition system develops.