Connect4

Connect4 is a four-in-a-row videogame. Its novelty is the possibility to
exploit the power of Fairy Stockfish for the moves computed by the program. 
Fairy Stockfish is a multi purpose engine derived from the famous Stockfish,
engine written for chess.

Features:
- Fairy Stockfish support
- Take back move
- Suggest move

Connect4 doesn't contain any playing algorithm, it's only an interface. 
Therefore, porting an appropriate Connect4-compatible engine is very
important. It is recommended the engine Fairy-Stockfish, who is a chess
variant engine derived from Stockfish (another engine who plays classical
chess) designed for the support of fairy chess variants and easy extensibility
with more games. It can play various regional, historical, and modern chess
variants such as: Xiangqi, Janggi, Shogi, Makruk and many more, including
games with user-defined rules. Fairy-Stockfish is recommended because allows
to play with numerous games, of which Connect4 is only one. Porting it allows
user to play not only Connect4 but with other chess games also, the following
interfaces are already been implemented:

Xiangqi (chinese chess): https://aminet.net/package/game/board/Xiangqi_OS4
Janggi (korean chess): https://aminet.net/package/game/board/Janggi_OS4

Other interfaces to play with other chess variants are planned. By porting
Fairy Stockfish for this platform, became possible to play against computer
not only in Connect 4, but in Xiangqi and Janggi also.

The source code of Fairy Stockfish on GitHub:
https://github.com/fairy-stockfish/Fairy-Stockfish

Author of Connect4 can be contacted by developers of such engine, so that is
possible to test it and solve every problem who arise interfacing it with
Connect4 and other interfaces.

Connect4 is released as freeware and can be distributed in every
non-commercial form.