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Subject: Re: Blathy problem - mate in 16

Author: Uri Blass

Date: 19:29:09 04/18/05

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On April 18, 2005 at 21:32:59, Jeremiah Penery wrote:

>On April 18, 2005 at 07:24:11, Uri Blass wrote:
>
>>part of the problem is check extensions and part of the problem is probably
>>pruning based on evaluation together with other factors that I should improve.
>
>Why should check extensions make any difference in this position?  Neither side
>should be giving any checks.

The problem is that most of the search time is not on the right line but in what
happens after queen promotion.

Movei cannot find the knight promotion in a reasonable time(I did not try more
than 30 minutes on a fast PC) but almost all the search time is on queen
promotion.

After performing the knight promotion finding the mate is easy for movei.

Uri



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