Chess for the Blind for the JAWS or NVDA Screen Readers
MOBMAT chess engine
RelaxChess, chess game that makes no search futher needed for a wow
Chess GUI in Python
EXCEL VBA chess engine with chess board
Extensive Java chess database libraries.
Chess Database application
Chess tournament organisation tool with swiss pairing system for free.
Java Chess Engine
icsdrone is an interface between a chess server and a chess engine
The world's smallest chess playing program just got smaller!
Next generation web chess club
Chess engine, currently in development
a Java chess engine for cookers
free open-source chess engine interface
A weak open source java chess engine
A fast bot for chess.com
SCE chess engine
A Chess Engine derived from Winglet
An extremely strong chess engine.