Chess game developed for home computer Sinclair ZX81. Game code takes up only 672 bytes in memory, but implements all chess rules except for castling, promotion, and en passant, including a computer opponent. It was the smallest implementation of chess on any computer at the time.
at://did:web:gamesgamesgamesgames.games/games.gamesgamesgamesgames.game/3mgmvv7ex5e2l