Chess application whichs allows working with chess PDF books and PGNs.
a UCI chess engine
SJCE - free portable cross-platform graphical chess game, 100% Java.
A console/ncurses chess engine frontend and PGN editor.
Extensive Java chess database libraries.
Sunsetter, a chess, crazyhouse, and bughouse playing program
A simple 2D-Chess
Educational Software for children aged 2 to 10.
chess game
A Java chess engine using xboard protocol
A chess game written is turbo pascal
chessoclock is a simple chess clock running on a virtual terminal
PGN Viewer Oslo to load PGN chess notations from flat text file