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Subject: Re: Deep-Blue vs Kasparov, 2.game,

Author: blass uri

Date: 07:54:53 05/20/00

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On May 20, 2000 at 10:04:58, Ricardo Gibert wrote:

>On May 20, 2000 at 09:27:39, Robert Hyatt wrote:
>
>>On May 20, 2000 at 07:11:31, Terje Vagle wrote:
>>
>>>1r6/5kp1/RqQb1p1p/1p1PpP2/1Pp1B3/2P4P/6P1/5K2 b - -
>>>
>>>After 45. Ra6, Fritz suggests Qe3 for black and evaluates the position as 0,94.
>>>It does not seem to find the famous draw-line for Kasparov.
>>>10 hours analysis on PIII-600, and 28006383 KN evaluated
>>>
>>>Does any other program find the draw-line?
>>>
>>>
>>>Regards
>>>
>>>
>>>Terje
>>
>>The draw is somewhere around 60 plies deep, total.  I don't think anyone is
>>going to find that.
>
>60 plies? No way. More like half that. A lot of humans have no trouble
>calculating the draw to the end. I found it myself without any assistance of any
>kind. The only thing difficult about that draw is the psychological barrier.
>This Kaspy failed to overcome as we all know.
>
>As for computer programs, judging from the Chris Janeke post, commercial
>programs have no trouble finding the draw with a 5 ply headstart. If it were
>really 60 plies, I don't see how that would be possible.

The 5 ply head start is not forced.
They could find the draw after 5 ply head start because they did not start it in
the right way.

I remember that I analyzed it with chess program and in one of the lines white
played h4 and the programs did not play this line.

Uri



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