UCI chess engine
Chess training program playing gambits
Chess Database and PGN viewer
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
NetChess to play between two players over net or internet
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
A collection of patches for the upstream Scid vs PC project.
Chess program
SJCE - free portable cross-platform graphical chess game, 100% Java.
Python chess engine
The forever free, ad-free and open source chess server
EXCEL VBA chess engine with chess board
Extensive Java chess database libraries.
Chess Database application
Java Chess Engine
The world's smallest chess playing program just got smaller!
Next generation web chess club