Author: Uri Blass
Date: 12:39:51 11/19/02
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On November 19, 2002 at 15:08:13, Daniel Clausen wrote: >On November 19, 2002 at 14:04:42, Vincent Diepeveen wrote: > >[snip] > >>i have posted some months ago and another few months before that loads >>of examples with regard to evaluation. >> >>If you browse some in the search you will find it. > >I'm aware of that. But I can't remember that you scientifically proved that >"bitboards are worse to implement a good eval than 0x88". (or any other board >representation) > >Actually it would be a rather stupid claim to make because there's really no way >you could prove that. (on the other hand, religions make use of the fact that >their claims are not provable/disprovable ;) > >Just posting some examples where 0x88 is better than <another board >representation> is not a proof. In fact I'd be surprised if _your_ evaluation >would be easier/faster to implement with bitboards than with 0x88, as it would >mainly show that you didn't make use of the advantages of your chosen board >representation. > >While there are clearly inferior board-representations (like storing the board >internally as a BMP-file ;), generally the art is to find the advantages of the >chosen representation and make use of them. (that's not only true for chessboard >representation but for many other things) > >Sargon I have no idea which way is better but I believe that it is better to continue in the way that you already started and not to try something completely different. I do not consider a possible difference of being 33% faster as important enough to change the structure of the program because at the same time it is possible to get improvement in other ways. Uri
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