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Subject: Re: That's why Rybka is a chess engine from another dimention....

Author: Sandro Necchi

Date: 06:31:26 12/10/05

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On December 10, 2005 at 08:47:36, George Tsavdaris wrote:

>On December 10, 2005 at 07:52:56, Sandro Necchi wrote:
>
>>On December 10, 2005 at 07:16:37, George Tsavdaris wrote:
>>
>>>On December 10, 2005 at 07:13:37, Sandro Necchi wrote:
>>>
>>>>On December 10, 2005 at 07:10:50, George Tsavdaris wrote:
>>>>
>>>>>On December 10, 2005 at 07:06:05, Sandro Necchi wrote:
>>>>>
>>>>>>Hi,
>>>>>>
>>>>>>sorry but I do not get it....if it has an optimized book why is only second?
>>>>>>
>>>>>>The book should clearly help to get no. 1...no other score would be acceptable.
>>>>>
>>>>>01Toga II 1.1a i          13.5/19  = 71%
>>>>>02 Rybka 1.0              10.5/14  = 75%
>>>>>05 Fruit 2.2.1 i          10.0/12  = 83%
>>>>>
>>>>> So yes, it is second but not after Toga but after Fruit.....But we really
>>>>>should wait for all the engines play the same amount of games and against all
>>>>>other.....
>>>>
>>>>OK, but a book optimized with only 3 moves?
>>>>
>>>>Is this serious?
>>>>
>>> Rybka released before some days. I guess Dr.Wael didn't start creating it the
>>>1st day of its release. So he had only 2-4 days to do it and since he doen't
>>>have any profit from it i don't think he worked full time. So if he covers 6
>>>plies i find it really good........
>>
>>??????????????
>>
>>The world is nice because there are so many different ways to think.
>>
>
> I know, i know, 6 plies mean absolutely nothing about a book and in any case
>can be called optimized, but i was refering to the job needed of creating _by
>hand_ a 6-ply book. If you do this in 4-5 days it's a good try.....
>
> To start being characterized as an optimized book, i think anyone should spend
>around at least a month of full analysing with Rybka but also other engines (for
>comparing purposes). Also i think the book should start being built, by a small
>starting sample book that should consist of at least 10 ply with the major
>opening variations and then adding to it variations Rybka understands........
> Of course you know the process much better than me and you can always correct
>me if i say anything stupid, but i say again that i was not refering to the book
>when i said "i find it really good" but to the job made manually.....

Well, I understand what you say, but with today's tools it is not necessary to
do all things manually anymore. I had to do it 28 years ago...

I believe 20 plies is the very minimum for a book.

Just my opinion.

Sandro



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