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Subject: Re: to trade or not to trade

Author: John Merlino

Date: 12:26:05 09/25/03

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On September 25, 2003 at 14:52:24, Joachim Rang wrote:

>On September 25, 2003 at 14:02:18, John Merlino wrote:
>
>>On September 25, 2003 at 12:08:17, Will Singleton wrote:
>>
>>>[D]6k1/8/p3p2p/2Q5/1N2qp2/8/5K2/8 b - - 0 47
>>>
>>>Black has the option of Qe3+, going into a 3 pawns vs knight game.  It appears
>>>from analysis that after the queens are off, white cannot stop all the pawns.  I
>>>don't know whether it's possible to win without trading queens (doesn't look
>>>like it), but it appears certain that Qe3+ will win.  However, programs are
>>>reluctant to play it.
>>
>>Even after forcing 1...Qe3+ 2.Qxe3 fxe3+ 3.Kxe3 a5, Chessmaster 9000, on a
>>P4-2.4, does not see a win for Black after four minutes (this is, of course,
>>without tablebases):
>>
>
>after 1...Qe3+ 2.Qxe3 fxe3+ 3.Kxe3 you have a 6-piece endgame, so TB will
>probably help a lot :-)
>
>regards Joachim

Not for Chessmaster, as it does not use them in the search. And, as far as I
know, the KNKPPP 6-man file has not yet been built.

jm



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