Terms of Service

Knight Vision (“Knight Vision”, “we”, “us”) is a chess-training service operated by [PLACEHOLDER: legal company name, e.g. ACME s. r. o.], a company registered in the Slovak Republic, IČO [PLACEHOLDER: IČO], VAT ID [PLACEHOLDER: IČ DPH / VAT ID], with its registered office at [PLACEHOLDER: registered office address], registered in [PLACEHOLDER: e.g. Obchodný register Mestského súdu Bratislava III, oddiel: Sro, vložka č. XXXXX/B].

You can reach us by email at [PLACEHOLDER: support@yourdomain]. These Terms govern your use of the website at [PLACEHOLDER: knightvision.app or your domain]and the related service (together, the “Service”).

By creating an account or using the Service you agree to these Terms and to our Privacy Policy. If you don’t agree, please don’t use the Service.

You must be at least 16 years old to create an account. If you are younger, you may use the Service only with the consent of a parent or legal guardian who agrees to these Terms on your behalf.

The Service is offered to consumers and businesses in the European Union and worldwide, subject to local law. You are responsible for making sure your use of the Service is lawful where you live.

You sign in with a magic link sent to your email address — we don’t store passwords. You are responsible for keeping access to that inbox secure. Anyone with access to it can sign in as you.

One person, one account. Don’t share your account, sell it, or let anyone else use it. You can close your account at any time from your profile or by emailing us.

You may connect a Lichess username to your account to receive drills built from your own games. We use the public Lichess API to fetch games associated with that username. We do not receive your Lichess password or any private Lichess data, and we do not act on your behalf on Lichess.

Lichess is an independent service operated by Lichess.org. We have no control over Lichess and aren’t responsible for it. By connecting a Lichess username, you confirm that the games are yours (or you otherwise have the right to use them).

You agree not to:

• scrape, crawl, or harvest content from the Service in bulk;
• attempt to reverse-engineer, decompile, or otherwise extract source code, except to the extent that mandatory law allows;
• interfere with or overload our infrastructure, security, or rate limits;
• use the Service to harass, defraud, or violate the rights of others;
• impersonate another person or misrepresent your affiliation with anyone;
• resell access to the Service without our written agreement.

The Service is offered in two tiers: a free tier with a daily drill limit, and Knight Vision Pro, a one-time purchase that removes the daily limit and unlocks full statistics, storm and trial leaderboards, and personal drills mined from your Lichess games. Pro is not a subscription — there is no auto-renewal.

The current Pro price (and applicable VAT) is shown on the checkout page before you pay. Payments are processed by Stripe Payments Europe, Limited, our payment-services provider. You enter card or other payment details directly into Stripe; we never see or store them.

For customers in the European Union, VAT is charged at the rate of your country of residence and remitted under the EU VAT One-Stop Shop (OSS) scheme. The receipt issued through Stripe serves as your invoice.

“Lifetime” access means access for as long as the Service is operated. We intend to operate Knight Vision indefinitely, but we cannot guarantee that any online service will run forever. If we discontinue the Service, we will give reasonable advance notice (at least 30 days where practicable) by email.

If you are a consumer resident in the European Union, you normally have a 14-day right to withdraw from a distance contract for digital content / services without giving any reason, under Directive 2011/83/EU and Slovak Act No. 108/2024 Coll. on consumer protection.

Knight Vision Pro is a digital service that we begin to provide immediately after payment. As permitted by that legislation, when you purchase Pro you will be asked to give your express consent to the immediate performance of the contract and acknowledge that you thereby lose your right of withdrawal once Pro is unlocked. If you do not wish to give that consent, do not confirm the box at checkout — in that case Pro will be unlocked only after the 14-day period has expired, and you may withdraw from the contract before then by emailing [PLACEHOLDER: support@yourdomain] for a full refund.

Statutory rights you have as a consumer under the law of your country of residence are not affected by these Terms.

Once the right of withdrawal is exhausted or has been waived, the purchase is non-refundable except where required by law. If you believe you were charged in error, or if the Service is materially broken in a way we cannot fix in a reasonable time, contact us at [PLACEHOLDER: support@yourdomain] and we will work in good faith to make it right.

The Service, including the drill catalogue, ratings system, design, source code, and content (other than your data) is owned by us or our licensors and is protected by copyright and other intellectual- property laws. We grant you a personal, non-exclusive, non-transferable, revocable license to use the Service for your own chess training while these Terms remain in force.

Your data (including imported games, drill attempts, and stats) remains yours. You grant us the limited license to process and display it as needed to operate the Service for you.

We may add, change, or remove features at any time, especially while the Service is still young. We will not remove core features of Pro (the lifted daily drill cap, the stats screens, the leaderboards, or the personal-drills feature) without offering a reasonable equivalent. Any change that materially reduces what you paid for will be communicated by email.

The Service is provided “as is” and “as available”. To the maximum extent permitted by law, we disclaim all warranties not expressly granted in these Terms, including merchantability, fitness for a particular purpose, and non-infringement.

Knight Vision is a chess-training tool. Improving at chess is hard and we make no promise about specific rating gains, tournament results, or improvements in your over-the-board play.

To the extent permitted by applicable law, our total aggregate liability for any claims arising out of or relating to the Service (whether in contract, tort, or otherwise) is limited to the greater of (a) the amount you paid us in the 12 months preceding the event giving rise to the claim, or (b) EUR 50.

We are not liable for indirect, incidental, special, or consequential damages, including loss of profits, data, or goodwill, except where such liability cannot be excluded under mandatory law.

Nothing in these Terms limits our liability for death or personal injury caused by our negligence, for fraud or fraudulent misrepresentation, or for any other liability that cannot be excluded or limited under Slovak or EU law. Mandatory consumer protections available to you under your country’s law are not affected.

You may stop using the Service at any time and delete your account from your profile or by emailing us. We may suspend or terminate your account if you breach these Terms or use the Service in a way that harms us or other users; where reasonable we will give notice and a chance to fix the issue first.

If we terminate your Pro access for a serious breach (e.g. fraud, chargeback abuse, attempt to compromise the Service), we may do so without refund. If we terminate without good cause, we will refund a pro-rated amount based on a reasonable estimate of remaining service life.

We may update these Terms from time to time. The updated version takes effect when posted at this URL. If a change is material to your rights or obligations, we will notify you by email at least 14 days before it takes effect. Continued use of the Service after that date means you accept the change. If you don’t accept it, you may close your account.

These Terms are governed by the law of the Slovak Republic, without regard to its conflict-of-laws rules. The courts of the Slovak Republic have non-exclusive jurisdiction over any dispute arising out of or relating to these Terms or the Service.

If you are a consumer, mandatory provisions of the law of your country of habitual residence still apply, and you may bring proceedings in the courts of that country.

You also have the right to use the European Commission’s Online Dispute Resolution platform at ec.europa.eu/consumers/odr.

Questions, refund requests, or complaints? Email [PLACEHOLDER: support@yourdomain]. We try to reply within a few business days.