Chess Openings

"Chess Openings" is a comprehensive virtual chess opening book containing more than 2000 variations. Users can add personal notes, bookmark favorites, and share positions through various platforms. The app allows for backing up custom moves and has built-in cloud support. It utilizes ECO codes for classification and requires understanding of standard chess notation. Features include PGN file exports and diagram sharing, making it ideal for both enthusiasts and players wanting to improve their opening knowledge.