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Subject: Re: limited razoring question

Author: Inmann Werner

Date: 13:37:26 10/04/98

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On October 04, 1998 at 10:48:55, Ernst A. Heinz wrote:

>On October 03, 1998 at 17:03:19, Inmann Werner wrote:
>>
>>I read the article of Ulli Türke about razoring. I must say, I did not
>>understand it full, but I tried to implement something like this
>>
>>In alpha beta after checking for checkmate and the extensions i try
>>
>>  if (noextension_made   &&  distance to horizon<=2  && material_bilance[depth]
>> + 6*pawn_Value <=alpha)  return(alpha-1)
>
>Werner,
>
>It looks like you did not really study the article -- you got neither the
>implementation nor the author correct ... :-(
>

>It looks like you did not really study the article -- you got neither the
>implementation nor the author correct ... :-(

I posted five minutes after the original post.
Again. Sorry Ernst! It was you, that wrote the article.

I read the article and the pseudocode, but too shallow.
I think, I interpreted much wrong.
You are right, returning alpha-1 is nonsense.
Second: I must include the Mat-win of my move.
Third: I must think about extd_futil_margin depending on my program.

But one thing was good. There where some interesting post of you and Ed, and
thats worth much!!!

Werner



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