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Subject: Re: Nodes per Second. Say for known chess games.

Author: leonid

Date: 14:53:43 10/26/99

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On October 26, 1999 at 13:20:21, Dave Gomboc wrote:

>On October 26, 1999 at 08:02:04, leonid wrote:
>
>>On October 26, 1999 at 04:57:07, Dave Gomboc wrote:
>>
>>>On October 25, 1999 at 10:33:44, leonid wrote:
>>>
>>>>On October 25, 1999 at 06:54:33, Georg v. Zimmermann wrote:
>>>>
>>>>>What is your native language please?
>>>>>
>>>>>What I was trying to say :
>>>>>
>>>>>Rebel is a chess-program
>>>>>Crafty is a chess-program
>>>>>Fritz is a chess-program
>>>>>
>>>>>they all play _one_ game (chess).
>>>>>
>>>>>Sorry, I really only wanted to help you with your English. Cause mine isn't that
>>>>>great either.
>>>>>
>>>>>--Tec
>>>>
>>>>Thanks! I feel that we all need this. My mother language is Russian. If
>>>>everybody and everywhere was so picky about hues and semantics I will be not in
>>>>this trouble on the first place. Problem is that "fixed depth" in chess jargon
>>>>don't go after clear logic. Logic says that this should signify fixed number of
>>>>plys no more, no less. Mistake! Since somebody indicated me this funny surprise
>>>>I never found my way around the problem.
>>>>
>>>>With my respect,
>>>>Leonid.
>>>
>>>"Fixed-depth" actually does mean "search to a fixed depth".  If some program has
>>>an option that claims "fixed-depth" but isn't, they should call it something
>>>else.
>>>
>>>Dave
>>
>>But maybe you know how the "fixed depth" can be achieved and on what game. This
>>could help me to solve a puzzle.
>>
>>Comparing the speed when solving the mate was not problematic. Only you never
>>knows where you will face a surprise in chess programming.
>>
>>Leonid.
>
>Well, I doubt that any commercial is going to turn off its quiescence search.
>Your best bet is to take a crafty and hack it!
>
>Dave

This sound to me as too complicated, but Crafty I have already. This game is
inside of the HIARCS 7.32 package. But do the Crafty permit the "turn of its
quiescence search"? It is really possible to force this game right now to see
the given position by "brute force", no extentions, at fixed depth? If so, I
coud have perfectly clear idea about my "positional logic" speed immeditelly.

I played Crafty. This game is more that interesting. If it is really done on C,
it is amazing! Very good and quick. But if this game is 100% C it is the most
crazy game as well. Crazy, because by writing such a good game on C its author
gave up its first place to somebody else. Only portability of C can explain the
C preference.

Leonid.



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