1K ZX Chess – a tiny game
1K ZX Chess is a program that has gone down in the history of computer science. Over the years, it has been an excellent example of optimization.
The ZX81 was one of the first 8-bit computers, in its basic version it had only 1KB of RAM. Nevertheless, it has thousands of games and programs in the form of both listings and applications distributed on tapes. The machine could be expanded with modules extending the available memory up to 64 KB. From today’s perspective, it is fascinating how much could be squeezed out of the basic 1KB version.