I agree. In a 1K ZX81, the chess program had to share memory with the whole rest of the computer. This was a pretty impressive feat. There's nothing impressive

I agree. In a 1K ZX81, the chess program had to share memory with the whole rest of the computer. This was a pretty impressive feat. There's nothing impressive about a supposedly smaller program that has access to unlimited memory, unlimited screen memory, lots of BIOS routines, et cetera, and STILL can't honor the rules. One-upping a ZX81 in terms of sheer number of bytes of code is not impressive, and it wasn't at all what 1K Chess was about.