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Subject: Re: Eval

Author: Uri Blass

Date: 22:11:46 04/30/05

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On May 01, 2005 at 01:10:07, Uri Blass wrote:

>On April 30, 2005 at 21:32:14, Pedro Castro wrote:
>
>>Hello,
>>
>>I have a pair of questions on the evaluation of this position.
>>[D] r2q1rk1/ppp2p2/3pn3/3Np1pn/2B1P3/3PQP2/PPP2P2/1K1R2R1 w - - 0 18
>>
>>I have changed in my program DanaSah the evaluation of queen, of 900 points (100
>>pawn) to 1000 and with this change the evaluation happens of +1 for the white to
>>+2, because?, both sides have queens, would not have to be the same valuation
>>that before?
>
>No
>
>White can win the queen by some combination or win different material
>
>I guess that the line
>1.Nxc7 Qxc7 2.Rxg5+ Nhg7 3.Rdg1 Rfc8 4.Bxe6 fxe6 5.Rxg7+  is evaluated different
>and it effect the total score.
>
>For your second question than Fruit see it as less than +1 by static evaluation
>and I think that part of the problem is that shredder's scores are typically
>higher than other programs.
>
>Uri

I can add that it seems Shredder probably also extend more in the relevant line
after searching 12 plies so the +5 is also result of seeing deeper.

Uri





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