UCI chess engine
The React Chessboard Library used at ChessOpenings
GUI of chess
ChessMD is a Qt-based chess game viewer with engine analysis
Chess Stats is a slightly different way to analyze your chess games.
Chess application whichs allows working with chess PDF books and PGNs.
Chess analysis, training and testing for Windows.
Chess Database and Toolkit program
A new -better- chess variant , *Fair-Chess* ! (also with handicaps)
A free Chess program for Windows with a large set of features
A script together with a chess engine to analyze the game.
A simple tool to allow Chessmaster 10/11 bot customizations
Chess for the Blind for the JAWS or NVDA Screen Readers
The forever free, ad-free and open source chess server
Chess Database application
An extremely strong chess engine.
JavaScript chess with board rotation, pgn output, forward/back & save
A cloud-based chess application
Read and write PGN format and test moves for legality.