ECO Codes
ReadySearch Encyclopedia of Chess Openings codes and named lines, with a board diagram for every opening.
Chess opening, engine, software, and development references.
Search Encyclopedia of Chess Openings codes and named lines, with a board diagram for every opening.
A daily feed of the latest releases from open-source chess engines on GitHub, newest first.
My PGN tools, plus the essential chess databases, analysis suites, and engine tools players rely on.
Browse Stockfish commits, source snapshots, authors, dates, and messages.