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Subject: Re: Computer difficulties

Author: Luis Smith

Date: 12:36:16 01/14/03

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On January 14, 2003 at 04:03:41, Uri Blass wrote:

>On January 14, 2003 at 01:09:26, Luis Smith wrote:
>
>>On January 13, 2003 at 21:51:52, Terry McCracken wrote:
>>
>>>On January 13, 2003 at 14:29:51, Timothy J. Frohlick wrote:
>>>
>>>>Lieven,
>>>>
>>>>You are correct Sir. Nemeth's attack is an unsound one. Kasparov would ream him
>>>>a new "you know what" if Nemeth played like this. Hiarcs 8.0 even on my slow PII
>>>>333 chose g7-g6 after a couple of seconds.  Mr. Nemeth appears to like blitz
>>>>chess in order to show his superiority over "dumb" programs.  His posts are
>>>>amusing however.
>>>>
>>>Are you sure Fritz 8 is "dumber" HIARCS 8? I doubt it!
>>>>TJF
>>>>
>>>>On January 13, 2003 at 10:36:44, Lieven Clarisse wrote:
>>>>
>>>>>On January 12, 2003 at 17:19:23, Terry McCracken wrote:
>>>>>
>>>>>>On January 12, 2003 at 17:15:46, Luis Smith wrote:
>>>>>>
>>>>>>>In a recent Ed Nemeth vs. Fritz game the following position occoured
>>>>>>>
>>>>>>>[D] rnbq3r/pppp1kpp/8/2b4Q/3pn3/8/PP3PPP/RNB1K1NR b KQ - 0 7
>>>>>>>
>>>>>>>Fritz chose to play Ke6 rather than b7-b6, which seems much more sound to me.
>>>>>>>Is there something hidden in the b7-b6 move which contains a hidden attack for
>>>>>>>White that I cannot see?  Or is it simply "one of those things" that computers
>>>>>>>do?
>>>>>>>
>>>>>>>Aristarch 4.4 and Yace 0.99.56 along with several other of the top programs
>>>>>>>opted for Ke6...why?
>>>>>>>
>>>>>>>Reguards
>>>>>>>Luis
>>>>>>
>>>>>>You mean g7-g6, and if that is played rather than Ke6, Qd5+! wins.
>>>>>>
>>>>>>Terry
>>>>>
>>>>>
>>>>>I don't think so, white queen cannot take knight, otherwise has to face queen
>>>>>loss (rook e8).
>>>
>>>Yes I see that, but White can complicate with Qd5+! The N or B can be snagged
>>>later without the Rel threat.
>>>
>>>But it's not easy for White to win. Maybe White can't, but in blitz even comps.,
>>>screw up!
>>>
>>>Terry
>>
>>After forcing Fritz to play g7-g6 I tried several lines against it, all which it
>>defended successfully, then I pit some of the other top programs against it in
>>this same position...and again it seemed to end up winning.  but my origional
>>question has not been answered...Why do computers make the choice Ke6 rather
>>than g7-g6?
>>
>>Reguards
>>Luis
>
>The reason is simply that you do not give them enough time.
>Try to give yace some hours.
>
>Yace can see g6 in some minutes on a fast hardware.
>I do not remember the exact time that it needed but it was less than 30 minutes
>on P850.
>
>Uri

Whats the use of giving it hours, or even half an hour, its not practical for
real playing.  What if (IF!!!) this position had occoured in the Kramnik - Deep
Fritz match?  It wouldn't have half an hour to find the move...it would have had
maybe 8-10 minutes at most with the way computers manage time...

Reguards
Luis



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