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Subject: Re: Tough Tactic for Computers?

Author: Jeremiah Penery

Date: 09:39:36 02/17/00

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On February 16, 2000 at 19:31:12, Dave Gomboc wrote:

>On February 16, 2000 at 16:37:30, Jesus de la Villa wrote:
>
>>
>>After several hours neather(sp?)my software say something interesting, nor I. :(
>>Would you supply your main line, please.
>>
>>Thanks.
>
>I don't have one!  NCO ends with an eval of +-, that's it!
>
>Here's Crafty 17.6's latest:
>
>depth=16 1/36 +0.00 14. Nxg5 Rxf1+ 15. Qxf1 h6 16. Bc4+ Kh8 17. Nf7+ Kh7 18.
>Qd3+ g6 19. Qe3 Qf8 20. Rf1 Qg7 21. e6 Nc6 22. Ng5+ Kh8 23. Nf7+ Kh7
>Nodes: 2669305457 NPS: 70807
>Time: 10:28:18.30
>
>I am going to stop it thinking now; I have to get some real work done with my
>computer again. :-)  If someone else has some decent hardware and another
>program, I'm interested to see how it does.

On ply 15 with my modified Crafty, I was getting a fail-high with score >.02
Since it was taking hours (it was running on 8 hours just to resolve the
fail-high), I was forced to stop it, so I could play Planescape. :)  I did
follow the line for a few moves, and the score kept going up as I went further
along.  I think it's just a case of computer mis-evaluation - white is slightly
down on material (at first), but black's pieces in the corner are useless to
him.  The computer doesn't realize this.  Not to mention that all white's pieces
are aiming at the nearly-naked black king.



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