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Subject: Re: Congratulations to IsiChess

Author: José Carlos

Date: 11:44:30 11/14/02

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On November 14, 2002 at 13:51:59, Uri Blass wrote:

>On November 14, 2002 at 13:33:26, Russell Reagan wrote:
>
>>On November 14, 2002 at 11:04:42, José Carlos wrote:
>>
>>
>>>  It's a completely new engine written from scratch, just for the fun of
>>>experiencing new things. It uses non-rotated bitboards and MTD(f). Actually, my
>>>personal versions of both :)
>>
>>How do you handle things like rook file attacks with your non-rotated bitboards?
>>In other words, what do you do instead of using rotated bitboards? Do you use
>>the Kogge-Stone algorithms?
>>
>>Russell
>
>I cannot speak for averno but I do not have special evaluation for rook file
>attacks and there is not big difference in strength between movei and averno.

  He means for move generation. Rook attacks gives you the set of squares where
a rook can move to.

>I do not know what is the kogge-stone algorithm but it is possible to evaluate
>everything without bitboards.

  Sure.
  I'm just trying bitboards for fun.
  However, there's things that are more easily handled with botboards, and
others more difficultly, of course.

>Uri

  José C.



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