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Subject: Re: Is white winning without queens?

Author: Uri Blass

Date: 13:10:50 02/20/04

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On February 20, 2004 at 15:28:37, Gerd Isenberg wrote:

>On February 20, 2004 at 11:50:30, Tord Romstad wrote:
>
>>In a blitz game between Gothmog and Phalanx, played earlier today, the following
>>position was reached:
>>
>>[D]3rr2k/pp3q1p/2p2pp1/8/2PP4/3B1Q2/PBN2PPP/6K1 w - -
>>
>>Without doing a search, Gothmog thinks white has a winning advantage.  The
>>static eval returns a score of +2.0, despite approximate material equality.
>>The big plus score for white seems to be almost entirely because of the
>>bishop pair (my bishop pair bonus is really big when the opposite side
>>has no minor pieces) and the weakness of black's a1-h8 diagonal.
>>
>>To this patzer's eyes, an advantage of +2 in this position seems to be
>>way too much.  Should I have a closer look at my bishop pair bonus, or is
>>Gothmog's assesment of the position really OK?
>>
>>Tord
>
>Interactive eval tuning ;-)
>What about the same position without queens?
>
>I have slight minus for white - the rooks became stronger.
>Is that too much?
>
>[D] 3rr2k/pp5p/2p2pp1/8/2PP4/3B4/PBN2PPP/6K1 w - -

Movei starts with a small positive score in both cases but the score goes up for
white when it searches deeper.

In the first diagram the scores goes up to +1.xx and in this case the score goes
up slowly.

0.32/8
0.38/9
0.38/10
0.41/11
0.45/12
0.49/13
0.53/14

Uri



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