Chess application whichs allows working with chess PDF books and PGNs.
SJCE - free portable cross-platform graphical chess game, 100% Java.
Extensive Java chess database libraries.
Sunsetter, a chess, crazyhouse, and bughouse playing program
A simple 2D-Chess
A Java chess engine using xboard protocol
A chess game written is turbo pascal
PGN Viewer Oslo to load PGN chess notations from flat text file