PatternChess

Chess training app using the woodpecker method — drill the blunders from your own games.

Built as a Vite + React + TypeScript SPA. Imports games from chess.com or lichess, runs Stockfish (WASM, in a Web Worker) over them to find blunders, and surfaces them as spaced-repetition drills.

Quickstart

npm install
cp .env.example .env.local   # then add your Supabase keys
npm run dev                  # http://localhost:5173

Scripts

Command	What it does
npm run dev	Vite dev server with COEP/COOP isolation
npm run build	Production build to dist/
npm run preview	Preview the built bundle
npm run typecheck	tsc --noEmit
npm run e2e	Full Playwright suite
npm run smoke	Headers + engine smoke specs only

What's where

See CLAUDE.md for the full layout and conventions.