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Subject: Re: Not so fast

Author: Dave Gomboc

Date: 20:38:36 09/18/01

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On September 18, 2001 at 11:34:21, Bruce Moreland wrote:

>On September 18, 2001 at 02:57:09, Dave Gomboc wrote:
>
>>On September 17, 2001 at 13:06:09, Bruce Moreland wrote:
>>
>>>If you'll recall, that's what caused the altercation I had with that Chessbase
>>>beta-tester "author" who was operating Hiarcs in 1999.  He declared my program's
>>>moves "mistakes" when it was losing.  It wasn't making mistakes, it was just
>>>trying to avoid particularly bad terminal positions, and if it needed to give up
>>>material at the root in order to do this, it did.
>>>
>>>bruce
>>
>>Did you change this so that if the terminal score is clearly losing that it will
>>play the move that failed-bigtime-low last?  This way, either a less tactically
>>aware machine or a human might miss the win.  Neither of them are going to miss
>>a win if you just cough up material at the root.  Maybe the beta-tester expected
>>that behaviour (or maybe they were just ignorant, who knows?)
>>
>>I thought your Rf7 against Gandalf might have been exactly this sort of move
>>(the one that fails low last) but I didn't sit down and analyze it.
>>
>>Dave
>
>No, I don't have anything like that in there, and I doubt that anyone does.  I
>don't know what caused e5 and Rxf7 either.  The program went psycho, and I'm
>glad it did.
>
>bruce

At least a couple of commercials do.

Dave



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