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Subject: Re: attack tables without bitboards

Author: Sean Empey

Date: 11:31:31 08/12/04

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On August 12, 2004 at 13:45:08, Jan K. wrote:

>Hi, is there anyone who uses 0x88, 16x16 or similar type of board representation
>and is generating attack tables from scratch every time when needed? I didn't
>need full attack tables before, now I compute data about number of attacks and
>attackers like it's mentioned at ed schroder's web pages. On Athlon1800 from
>starting position i can generate the attack tables more than 2m times per
>second. After d4,d5,e4,e5 around 1600000x. The procedure is written in the most
>straightforward way and maybe there's chance for future optimization, but if
>someone gets twice more it's bad. :) Thanks for reply.

I have a version of 0x88 that does have something like this. I build them on
initializitization then update them from that point on. Mine is very fast.


-Sean



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