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Subject: Re: Should top programmes solve this problem?

Author: Howard Exner

Date: 05:38:40 01/03/00

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On January 03, 2000 at 05:44:17, allan johnson wrote:

>On January 03, 2000 at 01:29:06, Chessfun wrote:
>
>>On January 02, 2000 at 22:41:19, allan johnson wrote:
>>
>>> With all the talk on how strong programmes are today I
>>>decided to put a few of my programmes to the test.The one
>>>I have submitted comes from The Big Book Of Combinations
>>>edited by Eric Shiller.So far I have tested only Rebel Century
>>>which fails to find the best move(recommended by Shiller)in
>>>10 minutes.My machine is a Celeron 433 64 mb ram.Is this
>>>position too complicated for computers to solve? I'd
>>>appreciate feed back on responses from Fritz6 and Hiarcs7
>>>and the like.
>>>Thanks Allan
>>>r4k1r/1p3pp1/2b1p1np/p3P3/3PN1q1/4Q1P1/5P1P/R1R2BK1  white
>>>to move
>>>Rxc6! pxc6
>>>Be2
>>
>>Hiarcs 7.32 Cel 433
>>1. f3..Qh5....line ends at depth 10/30 after 10 minutes.
>>
>>Fritz 5.32
>>1. f3..Qh5....line ends at depth 13/40 after 10 minutes.
>>
>>Fritz 6
>>1. f3..Qh5....line ends at depth 14/38 after 10 minutes.
>>
>>After feeding Hiarcs 7.32 1. Rxc6...bxc6 2. Be2 it evaluates:
>>2.....Qh3. 3. Nd6 +0.71 after feeding these two moves in it cannot
>>find many moves it likes for black.
>>
>>I myself think this type of position is easy for a human to see Rxc6
>>than for a computer.
>>
>>Thanks.
>
> Yes I agree but I'm puzzled as to why! Will programmers ever find a
>means by which they can get their programmes to make temporary inferior
>exchanges?Surely the plies required to determine Rxc6 is winning(admittedly
>not everwhelmingly) is not that deep?

1. f3 Qh5 2. Rc5 a4 3. Bb5
This short sequence of moves also looks good for white. This may be a line that
computers are looking at. Black is in quite a bind here with the poor king
position and lame rook on h8.

It's a nice position as two different paths lead to an advantage.




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