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Subject: Re: Secrets of Rybka and Fruit from my point of view

Author: Ryan B.

Date: 18:07:46 12/15/05

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On December 15, 2005 at 21:06:22, Ryan B. wrote:

>On December 15, 2005 at 20:03:47, Sergei S. Markoff wrote:
>
>>>Really? Just the line from fruit:eval.c:
>>>
>>>  eval = ((opening * (256 - phase)) + (endgame * phase)) / 256;
>>
>>No. Not just this line, but the concept and well tuning.
>>
>>>I find that VERY hard to believe. That concept has been around a
>>>very long-time.
>>
>>Really? Where it was introduced by the first time?
>>
>>There was a lot of material-dependent evaluatation factors, but its was tuned
>>independently. The result for the most engines that used this approach was bad
>>consolidation ability.
>>
>>>We need specifics. I see nothing special about Fruit 2.1 evaluation
>>>to explain the strength.
>>
>>Lets experiment with it. It's easy to remake Fruit search to make it same to the
>>Crafty's.
>
>Amy has used the same idea for a long time in eval.  I think people are
>underestimating clean and bug free software.
>
>Ryan


ok, I should have said few bugs.



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