UCI chess engine
Batch tools for creating Polyglot books and PGN-based statistics.
Portable UCI- and XBoard-compatible chess engines.
Chess engine written in Pascal with an UCI interface.
Chess program for windows and linux
Chess training program playing gambits
Tool for chess teachers to create PDF files with chess diagrams in it
Chess game made with excel-vba
NetChess to play between two players over net or internet
A simple tool to allow Chessmaster 10/11 bot customizations
a UCI chess engine
Python chess engine
MOBMAT chess engine
RelaxChess, chess game that makes no search futher needed for a wow
EXCEL VBA chess engine with chess board
Extensive Java chess database libraries.
Java Chess Engine