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Subject: Re: Bitboards

Author: Alessandro Damiani

Date: 04:55:40 12/04/99

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On December 03, 1999 at 19:27:50, Nicolas Carrasco wrote:

>What bitboards method is faster : Chess 4.5 "old" or rotated bitboards?
>I know that it depends how you use it, but I would like to hear an answer.
>
>Thanks
>
>Nicolas
>http://www.puntadeleste.to/uruchess/

In Fortress I don't use "rotated bitboards". Of course, every method is a
rotation, but the one I use works differently. It is extremely simple and does
not need to scan the board. But I don't know if, for a 64-bit machine, it is
faster than "rotated bitboards". I don't know if Bob has made some tests.

I sent the source code to Bob, because I decided to make it Freeware. Bob asked
me to publish it in the ICCA journal, but I had to stop writing. It takes me too
much time.

If there is enough interest here I will post it. Remember it is Freeware.

Alessandro



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