UCI chess engine
Sunfish: a Python Chess Engine in 111 lines of code
A promising chess program
Chess application whichs allows working with chess PDF books and PGNs.
Bu chess An easy way to play and train chess on your PC
Gui of chess
Chess Database and PGN viewer
NetChess to play between two players over net or internet
Chess program
Julia chess programming library
SJCE - free portable cross-platform graphical chess game, 100% Java.
EXCEL VBA chess engine with chess board
Chess Database application
Java Chess Engine
Chess engine
An extremely strong chess engine.
A powerful chess engine written in C++
Port of UCI to Javascript
UCI chess engine
Yet Another Chess ENgine
Tyrannus is a Chess GUI and Engine built in Java.