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Subject: Re: 0x88 is not so smart

Author: TEERAPONG TOVIRAT

Date: 10:38:11 06/14/00

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On June 14, 2000 at 06:56:27, Christophe Theron wrote:

>On June 14, 2000 at 05:32:16, Alessandro Damiani wrote:
>
>>On June 13, 2000 at 23:18:54, Christophe Theron wrote:
>>
>>>On June 13, 2000 at 16:53:39, Eugene Nalimov wrote:
>>>
>>>>Combine two approaches -- 0x88 and 10x12. Use 12x16 board, and access board by
>>>>    board[0x20+square]
>>>>(In C/C++ you can define macro for that).
>>>>
>>>>Than in each case you can use more appropriate of 2 methods.
>>>
>>>
>>>Well actually Eugene it is what I do already. Sorry, I should have stated this
>>>more clearly in my post. I don't use 12x12 or 10x12. I use 16x16 (actually I
>>>just need 16x12).
>>>
>>>I don't even need to add 0x20... That's why I think 16x12 is more efficient than
>>>0x88, and this comes from close examination of what a typical chess program does
>>>most of the time.
>>>
>>>
>>>    Christophe
>>
>>The next step are bitboards.
>>
>>Alessandro
>
>
>How many of the top programs actually use bitboards?
>
>
>    Christophe
I also would like to know if all other thing being equal what is the
rating difference between the best non bitboards and bitboards program?
Teerapong



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