A promising chess program
Attempt of W. O. P. R. implementation with Ada
Chess for the Blind for the JAWS or NVDA Screen Readers
The forever free, ad-free and open source chess server
Chess pairing program for run through and round robin tournaments
RelaxChess, chess game that makes no search futher needed for a wow
Chess tournament organisation tool with swiss pairing system for free.
A simple 2D-Chess
icsdrone is an interface between a chess server and a chess engine
Gnu/Linux Evolved interface
JavaScript chess with board rotation, pgn output, forward/back & save
Teach beginners chess over internet
PHP Multiplayer Chess Script
An open source chess server with client