Author: Lex Loep
Date: 10:57:19 09/13/02
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On September 13, 2002 at 13:26:58, Christophe Theron wrote: >On September 13, 2002 at 11:41:27, William H Rogers wrote: > >>The smallest chess program ever written was by Peter Jennings. It was originally >>written for a small handheld and later ported to the TRS-80, Apple and the Pet. >>The original code was only 1k. On the trs80 it was 4k and that was with 3k of >>graphics. Although not perfect it was the samllest. >>Bill > > > >In 1982 I bought a TRS-80 Level I with 4Kb of RAM. > >For this computer I bought a program named MicroChess 1.5. It was very weak but >was able to run in the 4Kb of RAM (actually less than 4Kb was really available >to the program). > >The chess engine was probably much smaller than that, because the program had >full graphics and interface. Maybe 2Kb for the chess engine? > >However I do not remember if the program was able to play with all the rules of >chess. I'm not sure about en passant capture, threefold repetition and 50 moves >rule. > > I still got the assembly listing of SARGON by Dan and Kathe Spracklen from 1978 The program occupies 8kb of ram which includes 2k of data area, 2k of graphics and 4k of move logic. In that time it was one of the best programs around. I learned a lot from it. Lex > > Christophe
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