I seem to remember some chess game that was written that accounted for the memory drum hardware that used it which i would think would be the gold standard… might be this one https://en.wikipedia.org/wiki/1K_ZX_Chess
Drum memory predates the Sinclair by quite a while. But there is an often repeated story involving an impossibly-optimised Blackjack program for a drum memory computer called “The Story of Mel, a Real Programmer”.
I seem to remember some chess game that was written that accounted for the memory drum hardware that used it which i would think would be the gold standard… might be this one https://en.wikipedia.org/wiki/1K_ZX_Chess
Drum memory predates the Sinclair by quite a while. But there is an often repeated story involving an impossibly-optimised Blackjack program for a drum memory computer called “The Story of Mel, a Real Programmer”.