Chess application whichs allows working with chess PDF books and PGNs.
A promising chess program
A generic, simple and fast implementation of Deepmind's AlphaZero
a UCI chess engine
Viking chess (tablut) game with CPU player
Sunsetter, a chess, crazyhouse, and bughouse playing program
Java Chess Engine
A Chinese chess game including an adaptive computer opponent.
Self chess learning process by artificial neural network
A chess game with AI support