UCI chess engine
Portable UCI- and XBoard-compatible chess engines.
Prebuilt UCI- and XBoard-compatible chess engines.
Scripts and tools for building and testing chess engines.
Chess Cheats for Personal use
A promising chess program
Blind Chess using Taiwan rules
Board games for eBook Readers like the Tolino, reMarkable, others
Delphi : VRCalc++ OOSL & + (Paged List, TextEditor, VRAstroVision ...)
Lichess.org mobile application
Logical game
RelaxChess, chess game that makes no search futher needed for a wow
A JavaScript game library to quickly develop board games for the web
0xBench derivative
Version 1.2
A simple chess board for Android (>= API 3)
An android app that allows the user to easily play chess online