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Subject: Re: Commodore64 "grandmaster"

Author: William Kerr

Date: 11:31:52 05/25/02

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Hi Stan

In the early 90's I wrote a chess program in C. It performed a depth first
Alpha-Beta search with Killer moves. After I got all (most) of the bugs out of
it I challenged it to Sargon 2.5 running on the Modular Game Machine (6502 at
2Mhz I believe). Sargon 2.5 killed by program. I then challenged Sargon 2.5 to
Fritz 32 running on a PII 300 Mhz. Fritz killed Sargon 2.5. I then challenged my
program which is called WKchess against Fritz 5.32 and it actually did quite
well and lasted quite far into the end game with an even score until Fritz caugh
its second wind then destroyed my program. I also challenged WKChess to a old
commercial program I believe it was called Grandmaster chess which was on CD. My
program destroyed this program in a very short number of moves (twice in fact).
I have since added quiescence search at the end of the move tree but I think it
dumbed down the engine due to bugs that I inadvertantly added as well. That was
several years ago and have not the time to fix it, but I will soon hopefully.
Programming a computer to play chess is fun and quite rewarding and also very
time comsuming.

Have Fun!!!
Bill





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