Helps chess players on Lichess get optimal move suggestions and optionally automates piece movement, eliminating the need for manual analysis during games

User pins the extension, opens Lichess in a browser tab, toggles the extension on via popup. The content script reads the chess board state (FEN position) from the Lichess DOM, sends it to the background service worker which relays it to an offscreen document running Stockfish WASM. The best move is returned and either displayed/highlighted for the user, spoken aloud via voice synthesis, or automatically executed by simulating mouse clicks through the Chrome debugger API.

Target users: Lichess chess players who want engine-assisted move suggestions / Users seeking automated gameplay on Lichess

The extension name 'Chess Pro' and product name contain 'pro' which triggered paid keyword heuristics but is just the product name, not a paid tier indicator
The extension is essentially a chess cheating/bot tool for Lichess, which could violate Lichess terms of service

Monetization

No paid features detected

No evidence of paid features, premium tiers, subscriptions, payment processing, or feature gating. All features (depth control, automove, voice suggestion, winning chance, auto-play new game, bongcloud mode) are freely available via the popup UI toggles. No Stripe, PayPal, or any payment platform integration found. No 'premium', 'upgrade', 'unlock', 'subscribe', 'buy', 'purchase', or 'trial' keywords in source code.

Confidence: 97
Payment platform: --
Source: AI / High
Login required: No
Reason: The extension itself has no login flow, no authentication UI, no account creation, no token handling, and no credential storage. All settings are stored locally via chrome.storage.local. While the extension operates on Lichess.org (which requires its own account for certain features), the extension itself does not interact with any authentication system—it simply reads the chess board DOM and simulates clicks. Users can even play anonymous games on Lichess without an account.

Permission risk

High-risk permissions

This estimate uses declared permissions and host permissions to assess access scope and sensitivity.

敏感权限：debugger
扩展能力较强：storage、activeTab

Publisher

developer101

Independent publisher

Email: [email protected]
Phone: --
Address: --

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Permissions

Host access