♟ Pawnprint — Legal & Compliance

Privacy & Data Protection

Pawnprint is built for children ages 7–14, which means we operate under the U.S. Children’s Online Privacy Protection Act (COPPA). We collect verifiable parental consent before a child account becomes active, give parents tools to review, export, or delete their child’s data, and limit personal information to what the service genuinely needs.

Parental rights summary. As the parent of a Pawnprint child account you can, at any time: review the personal information on file, request a full data export, revoke consent (which suspends the account), and request account deletion (with a 7-day cancellation window before permanent purge). All of these are available from the Family page in your dashboard, or by contacting us directly.

Data retention. Specific retention periods for each data category are documented in the Privacy Notice. We don’t maintain a separate retention policy — the Privacy Notice is the canonical source.

• Privacy Notice — full COPPA disclosures, data categories, retention periods, processor list
• Privacy Contact — submit a data-access, data-deletion, or consent-revocation request
• Direct email: [email protected]

Terms of Service

Pawnprint operates as a free service today. A formal Terms of Service will be published alongside paid features in our next product phase. Until then, your use of Pawnprint is governed by our Privacy Notice and applicable law. If you have questions about how Pawnprint works or your relationship with the service, contact us via Privacy Contact.

Attributions & Compliance

Pawnprint stands on the shoulders of an extraordinary open-source ecosystem and a long tradition of public-domain chess literature. We’re grateful to the people and projects whose work makes this service possible.

Visual assets

• Cburnett chess pieces by Colin M.L. Burnett — licensed under CC BY-SA 3.0. Bundled via the react-chessboard default piece set.

Open-source software

• Stockfish 18 — chess engine, GPL v3
• chess.js — move generation and FEN/PGN parsing, BSD-2-Clause
• react-chessboard — board UI component, MIT
• Next.js — application framework, MIT
• @libsql/client — Turso database client, MIT

Data & content sources

• Lichess puzzle database — released under CC0 1.0 (public domain dedication). Used in Practice mode.
• Public-domain chess literature — works by José Raúl Capablanca, Siegbert Tarrasch, and Aron Nimzowitsch inform our coaching curriculum and master-game library.

AI providers

Pawnprint uses two language-model providers for coaching text generation. Both operate as service providers under written data processing agreements; neither uses Pawnprint customer data to train their models.

• Anthropic — Claude family of models
• Google — Gemini family of models

The full processor list (including Anthropic, Cloudflare, Google, PostHog, Resend, Stripe, and Turso) is disclosed in the Privacy Notice processor section.