Terms of Service

1. Accepting these terms

By downloading, accessing or using the BlackNWhite app, its web version atgame.blacknwhite.io or this website (together, the “Service”), you agree to these Terms and to our Privacy Policy. If you don't agree, please don't use the Service. If you use the Service from an app store, that store's terms also apply.

2. The service

BlackNWhite lets you play chess against an AI or another person on the same device, set up positions by hand, at random or from a photo, and view engine-suggested moves and evaluations. No account is needed. We may add, change or remove features at any time.

3. Beta software

Parts of the Service are offered as a beta. Beta features may be incomplete, change without notice, contain bugs, or be withdrawn. Please keep this in mind and don't rely on the Service for anything critical.

4. Acceptable use

You agree not to:

• overload, disrupt, scrape or automate requests to our servers, or get around rate limits or other protections;
• use our engine server as a back-end for another product or service;
• reverse engineer, decompile or modify the app, except where the law expressly allows it;
• use the Service for anything illegal or to infringe anyone else's rights; or
• copy, resell or redistribute the Service or its content without our written permission.

5. Fair play

BlackNWhite is a training and analysis tool. Using it, or any engine, for help during a rated or competitive game on another platform or over the board is cheating under the rules of most chess sites and federations. You're responsible for following the rules of any game or event you take part in. We're not responsible for any consequences if you don't.

6. Intellectual property

The Service, including the app, its design, logo, code and content, is owned by AIRIZZ or its licensors and is protected by law. We grant you a personal, non-exclusive, non-transferable, revocable license to use the app for your own non-commercial use, under these Terms.

Chess positions, games and images you create or share are yours. The Service also relies on open-source software and data under their own licenses: engine analysis is provided byStockfish (GPLv3), running on our servers. Attributions for the piece artwork, fonts and recognition training data are listed in the app.

7. Premium & purchases

We may offer paid Premium features. Before you buy, we'll show the price, billing period and what's included. Purchases in the mobile apps are processed by Google Play or the Apple App Store, and their terms govern billing, renewal, cancellation and refunds. Subscriptions renew automatically until you cancel them in your store account settings. This doesn't affect any rights you have under consumer law.

8. Third-party services

The Service may link to or work alongside third-party services, such as app stores or the apps you share to. We don't control those services and aren't responsible for them. Their own terms and privacy policies apply.

9. Disclaimers

The Service is provided “as is” and “as available”. To the extent the law allows, we give no warranties of any kind, express or implied, including fitness for a particular purpose, accuracy or uninterrupted availability. Engine suggestions and board recognition are automated and may be wrong. Always check the position before you rely on an analysis.

10. Limitation of liability

To the extent the law allows, AIRIZZ won't be liable for any indirect, incidental, special, consequential or punitive damages, or for any loss of data, profits or goodwill, arising from your use of the Service. Our total liability for any claim relating to the Service is limited to the greater of the amount you paid us in the 12 months before the claim or USD 50.

Some jurisdictions don't allow these limits, so they may not fully apply to you. Nothing in these Terms limits liability that can't be limited by law.

11. Suspension & termination

You can stop using the Service at any time by uninstalling the app. We may suspend or restrict access, for example by blocking abusive traffic, if you breach these Terms or to protect the Service or other users. We may also discontinue the Service, and will try to give reasonable notice if we do.

12. Changes

We may update these Terms from time to time. We'll post the new version here and update the effective date. If a change is material, we'll give notice in the app or on this website. Continuing to use the Service after a change takes effect means you accept the updated Terms.

13. General

If any part of these Terms is found unenforceable, the rest stays in effect. If we don't enforce a provision, that doesn't mean we've waived it. These Terms, together with the Privacy Policy, are the whole agreement between you and us about the Service. Mandatory consumer protection laws where you live still apply.

14. Contact