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Subject: Re: Did Smirin have an easy win in game 2?

Author: Jouni Uski

Date: 05:39:35 04/16/02

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On April 16, 2002 at 06:05:19, Uri Blass wrote:

>On April 16, 2002 at 05:52:55, Michael Vox wrote:
>
>>On April 15, 2002 at 18:44:10, Amir Ban wrote:
>>
>>
>>Hello Amir,
>>
>>I left Fritz 7b over night for eight hours on a 1.2 ghz with 256mg hash.  This
>>is the analysis -1.06.  Fritz does not find a winning line only an edge for
>>Black.  I was hoping my Nalimov tb's would eventually help Fritz pickup the
>>winning line but it did not occur
>>
>>
>>[D}8/8/2kP1n2/4pppp/6P1/B2K1P1P/8/8 b - - 0 1
>>
>>Analysis by Fritz 7:
>>
>>38...hxg4--
>>ยต  (-1.06)    Depth: 25/54   02:23:16  5204420kN, tb=467316
>>(X, X 16.04.2002)
>
>
>Fritz is a null mover and I doubt if it can find things here.
>I do not know if it disable null move here but I know from experience that there
>are positions that at least an older version(Deep Fritz) can never find the
>right move.
>
>I think that it may be better to use yace because
>I believe that this program does no unsound pruning and verify no zunzwang based
>n search to reduced depth so in theory it can find every tactics if you search
>deep enough.
>
>
>Uri

If You set selectivity to 0 in Fritz7 engine parameters, it seems to find all
moves, which cause problem by zugzwang!

Jouni



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