Chess application whichs allows working with chess PDF books and PGNs.
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.
Gnu/Linux Evolved interface
Next generation web chess club
A simple 2D-Chess
Teach beginners chess over internet
A cloud-based chess application
An open source chess server with client
PHP Multiplayer Chess Script
The Java Chess Engine