UCI chess engine
A generic, simple and fast implementation of Deepmind's AlphaZero
Chess Database and PGN viewer
Chess Database and Toolkit program
simple chess game written in C
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
A promising chess program
SJCE - free portable cross-platform graphical chess game, 100% Java.
Chess Database Application
The forever free, ad-free and open source chess server
Java Chess Engine
The world's smallest chess playing program just got smaller!
Next generation web chess club
A simple 2D-Chess
A powerful chess engine written in C++
Yet Another Chess ENgine
PGN Viewer Oslo to load PGN chess notations from flat text file
Read and write PGN format and test moves for legality.