Play chess from your terminal
UCI chess engine
Sunfish: a Python Chess Engine in 111 lines of code
Chess training program playing gambits
ChessMD is a Qt-based chess game viewer with engine analysis
Chess Database and PGN viewer
A collection of patches for the upstream Scid vs PC project.
maXbox is a script tool engine, compiler and source lib all in one exe
Delphi Java - VRCalc++ OOSL (Script) and + (Binary Exec Distro)
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
NetChess to play between two players over net or internet
a UCI chess engine
Chess program
Python chess engine
SJCE - free portable cross-platform graphical chess game, 100% Java.
A console/ncurses chess engine frontend and PGN editor.
The forever free, ad-free and open source chess server