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Subject: Re: The Stonewall vs chess programs

Author: Carsten Kossendey

Date: 08:39:35 04/25/98

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On April 25, 1998 at 09:13:17, Robert Hyatt wrote:

>On April 25, 1998 at 05:15:59, Baldomero Garcia, Jr. wrote:
>
>>Here is another Stonewall game, this time against Crafty.  Bob made the
>>comment in RGCC that Crafty's code had been changed to recognize the
>>pawn
>>structure.  I don't know for sure if the early exchange of pawns made
>>Crafty not realize what it was getting into.  Unfortunately it's not the
>>latest and greatest Crafty, and it's not running in the fastest hardware
>>either.
>>
>>[Event "Private Match"]
>>[Site "Yokosuka, Japan"]
>>[Date "1998.04.25"]
>>[Round "1"]
>>[White "Garcia, Baldomero"]
>>[WhiteElo "1997 USCF"]
>>[Black "Crafty 14.6 Mac Performa 6320"]
>>[BlackElo "2205 LCT2"]
>>[Result "1-0"]
>>
>
>Basically, your explanation is correct.  14K nodes per second when I'm
>now used to seeing 300K is very slow...  slow enough that Crafty on my
>machine playing 10 seconds per move would out-search crafty on your mac.

14K nodes is indeed not exactly fast ;)

>Also, this version appears to be one that was "right in the middle" of
>some changes to the Stonewall code...  Perhaps 15.4 will be compiled for
>the Mac soon, and you can try it again...

I'll be uploading it to your machine in a few minutes.

>but remember, Crafty is a
>"null-mover" which means slow computers are really incompatible with it,
>since it was "designed" on a P6/200.  If you slow it down by a factor
>of 10, you can expect null-move problems, and in the Stonewall, there is
>*plenty* of opportunity for them...

I'll upload a null-move disabled version as well. Since few people sell
their Macs and keep them for years (just for the record I still own one
which is ten years old now) that seems advised ;)



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