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Subject: Re: Difficult endgame position

Author: blass uri

Date: 06:44:09 06/07/00

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On June 07, 2000 at 06:06:40, Enrique Irazoqui wrote:

>Fritz 6b takes 18' 26'' on a P600E with 184MB hash to pick 1.h6, but it doesn't
>see the winning line yet after one hour of being stuck at ply 20/43, eval -0.12.
>How long does it take for other programs to play h6 with a winning evaluation?

chessmaster6000(ss=10) wants to play e7 after 3:29 on pentiumIII450
at depth 10/15

at the same depth it considers for a long time the move h6 and after more than
90 minutes did not get a decision about h6

I think that chessmaster could see h6 faster if it knew to avoid searching
illogical lines.

I think that it is a problem of all the programs but only chessmaster tells us
thinking lines(I know no other programs that do it)

Chessmaster6000(ss=10) searched for more than 10 minutes
the line h6 Rxb5 hxg7 Kb8 g8Q

It is clear that white is winning this line so there is no reason to search this
line for a long time.

The fact that chessmaster does it only prove that program have a lot to learn
about search.

I think that it will be also better if it will be possible to tell
chessmaster6000 during search that h6 Rxb5 hxg7 Kb8 is illogical for black and
to tell it to go to search other lines.

Uri



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