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Subject: Re: Root Position

Author: Severi Salminen

Date: 14:26:47 01/05/01

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On January 05, 2001 at 17:22:19, David Rasmussen wrote:

>On January 05, 2001 at 15:00:27, Severi Salminen wrote:
>
>>
>>>I just reuse the score from the last iteration and center on that with an
>>>aspiration windows of one third of a pawn. I do the +1 -1 parts too. At first I
>>>found them "ugly", but as far as I can see, it is necesary.
>>
>>I also use the score from previous iterations. Only the first 1 ply search uses
>>infinite window.
>>
>>If you would leave those +1 or -1 away you are telling the search fonction that
>>you allready know a move that gives you that score. But this is not true and if
>>the true score indeed is the same as the first try returned we are in trouble.
>>They look ugly but are mathematically correct.
>>
>>Severi
>
>Of course I know that line of thinking, that's what I'm thinking myself.

Sorry.

Severi



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