Computer Chess Club Archives


Search

Terms

Messages

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

Author: Roy Eassa

Date: 12:42:54 06/12/02

Go up one level in this thread


On June 12, 2002 at 15:27:34, Roy Eassa wrote:

>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.)



1.Bxe6

   [or 1.Qe7 Ne5 2.Bxe6 Nxe6 3.Nxe6 Rd7 4.Ng5+ Kxh6 5.Qf6 Qd8
       6.Nxf7+ Rxf7 7.Qxe5 +-]

   [1.e4 also wins]

1...Nxe6 2.Nxe6 fxe6 3.Qe7+ Kxh6 4.Rd4 g5 5.Qxe6+ Kg7 6.Qxc6 Ne5 7.Qxb5 Qxb5
8.Nxb 5+-


Pocket Fritz on my iPAQ prefers 1.e4, even after 5 minutes.  Go figure.



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.