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Subject: Re: Speed and horizont effect

Author: blass uri

Date: 14:29:15 01/25/00

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On January 25, 2000 at 13:31:01, Christophe Theron wrote:

>On January 24, 2000 at 15:50:15, blass uri wrote:
>
>>On January 24, 2000 at 15:34:39, Christophe Theron wrote:
>>
>>>On January 24, 2000 at 09:10:12, Robert Hyatt wrote:
>>
>>>>I suspect that one commercial program is doing no capture search, but may be
>>>>using a static exchange evaluator to prevent the last move in a PV from
>>>>being an outright blunder.  Seems to be working.  No names to protect the
>>>>guilty, however.  :)
>>>
>>>
>>>
>>>I'm really curious about this. Using a SEE to "close" the search is in my
>>>opinion a beginner's mistake (no offense intended).
>>>
>>>It's the first thing I have done myself when I started programming chess, and I
>>>suspect many of us have followed the same path.
>>>
>>>But if somebody tells me it really works, then I have, once again, to reconsider
>>>seriously all I know about chess programming.
>>>
>>>It's not new anyway. Every now and then I realize how little I know. That's part
>>>of the fun.
>>
>>The program hyatt talk about is probably Junior.
>>
>>Uri
>
>
>Really???
>
>Why do you think it's Junior?
>
>Junior is said to have a huge NPS. Using a SEE at the end of the tree (in every
>node actually) is supposed to drop your NPS considerably...
>
>
>    Christophe

I remember that amir ban said in the past that he does not think that Qsearch is
a good idea.

I also remember that there was a position that proved it when Junior never did a
mistake at small depths that other programs did because of Qsearch.

Uri



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