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Subject: Re: A Combination hard for portable chess COMPS but easy for PC Programs

Author: Roy Eassa

Date: 12:27:34 06/12/02

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On June 12, 2002 at 15:04:07, ALI MIRAFZALI wrote:

>The follwing position is from Yermolinsky vs Ehlvest after move 40 by black
>[D]rq1r4/2nn1p1k/2b1p1pP/1pPp2Q1/1P3NB1/2N2P2/3RP2P/3R2K1 w
>Here white plays 41.Bxe6! and wins.The interesting thing here is that the
>Novag Sapphire(which is a good Portable) does not find this even after 12 hours
>and going 10 plys deep.On the other hand Chessmaster 8000 (on a 700 Mhz PC)
>sees it after 3 seconds at ply 6.Please indicate the result for your portable
>chess Computer.


White also wins easily after 1.Qe7, especially since he can play Bxe6 on the
next move in most cases.  The programs on my PC also prefer 1.Bxe6 after only a
couple seconds, but Chess Tiger 14.9a on my 42 MHz Sony Clie (Palm OS) prefers
1.Qe7 right from the start and still prefers it after 5 minutes.  (What matters
most, IMHO, is that it does see an easy win immediately.)



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