ChessFan: Notation & PDF

ChessFan is a chess PDF reader designed for players, coaches, and students. Import your chess books in PDF, detect chessboards on each page, recognize pieces with on-device ML, generate FEN, and jump directly into interactive puzzle practice. Key features: - Scan and digitize handwritten score sheets with AI - Review, edit, and replay games from score sheets on an interactive board - PDF chess book reading with smooth page navigation - Automatic board detection on PDF pages - Piece recognition and FEN generation - Edit and verify FEN before practice - Interactive puzzle practice board - Save and review practice history - Coach-student workflow for training feedback - Offline-first design: core recognition runs on your device - Multi-language UI support Privacy-focused by design: - Your PDF files stay on your device - Board recognition ML runs locally on-device - Score sheet images are temporarily sent to our AI service for recognition and not permanently stored - Recognized move data may be saved to cloud for Pro/Coach subscribers Subscription: - Free tier available - Paid plans unlock advanced cloud and coaching features Need help? Contact: [email protected] Terms of Use: https://oysape.web.app/terms.html Privacy Policy: https://oysape.web.app/privacy.html