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Subject: Re: Attack Table Question

Author: Ed Schröder

Date: 06:11:59 03/22/04

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On March 22, 2004 at 03:40:57, Daniel Shawul wrote:

>Hello
>
>I have decided to use attack tables. I just did
>a rough implementation of it at the beginning of the eval
>according to Ed's paper. The problem is the thing dropped the nodecount
>by almost 40% .  Initial position nodecount was 800000 and now it is 500000.
>Do incremental move attack tables help? And how do i update the table? It seems
>very difficult to update a sliding move and other special cases.

The drop in NPS (in my case) was easily earned back by the new possibilities to
improve on move-ordering and a more limited QS. Add-up the advantages for eval
when you know what pieces control a (every) square.

My best,

Ed



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