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Subject: Re: bitboard vs 0x88 again?

Author: Anthony Cozzie

Date: 05:04:59 10/08/03

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On October 07, 2003 at 21:08:43, Jaime Benito de Valle Ruiz wrote:

>On October 07, 2003 at 20:19:00, Russell Reagan wrote:
>
>>On October 07, 2003 at 19:44:10, Jaime Benito de Valle Ruiz wrote:
>>
>>>Why always the same fights between the bitboard and the 0x88 (or similar)
>>>approaches?
>>
>>I don't think anyone is fighting here.
>>
>
>Maybe "fight" was not the right word to use here :)
>
>>
>>>I'm sure you could make use of that 8x8 array to implement non-bitboard
>>>functions where appropriate and use the bitboard ones where they're more
>>>convenient, taking advantage of both approaches; I don't know why this has to be
>>>regarded as a dichotomy!
>>
>>Unfortunately many of the advantages of 0x88-like systems cannot be taken
>>advantage of using a 64-element array.
>>
>>
>>>Anyway, why don't you use your engines to prove yourself right by getting them
>>>to play better than the others? After all it's that's the aim, isn't it?
>>
>>Because board representation has little to do with playing strength among top
>>engines, and nothing is proven if a bitboard engine beats all others.
>
>True.
>That's my point, actually: Why arguing about the advantages of a particular
>representation system if that has no evident effect on an engine performance?
>We probably have the same idea in mind, but we're using different words.
>
>Anyway... how's your engine? I'll release a beta version quite soon... and
>you'll have your chance to criticize me :)
>Regards,
>
> Jaime

zappa is a bitboard engine.  I think bitboards are a good idea, but that doesn't
make me blind to their weaknesses.

anthony



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