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Subject: Re: How Many Programmes Avoid Qxe7+?? Quickly? Chess Tiger Is The Fastes

Author: Terry McCracken

Date: 11:53:51 11/25/02

Go up one level in this thread


On November 25, 2002 at 14:20:31, Robert Hyatt wrote:

>On November 25, 2002 at 10:27:39, Terry McCracken wrote:
>
>>On November 25, 2002 at 00:38:20, Robert Hyatt wrote:
>>
>>>On November 24, 2002 at 23:56:30, Terry McCracken wrote:
>>>
>>>>[D]8/4p3/4Q3/8/8/k1p3PP/1q3P1K/8 w - - 0 1
>>>>
>>>>This is reposted as it was given little attention.
>>>>
>>>>
>>>>http://www.talkchess.com/forums/1/message.html?266990
>>>
>>>
>>>I ran this position myself and reported.  Does Qxe7 lose?  I couldn't see
>>>how black could avoid the checks, unless white is supposed to win rather than
>>>draw this...
>>
>>
>>Yes it loses Bob, slowly Black avoids all checks and Queens his pawn.
>>
>>Tiger sees it and so do other programmes given time or a little human help:o)
>>
>>It's technique which I'm getting a little rusty on, otherwise I'd have examined
>>the posistion more closely the first time.
>>
>>Terry
>>
>>1.Qxe7+?? Ka2!! 2.Qe6+ Kb1! 3.Qe4+ c2! and it's only a matter of time...
>
>
>That was my analysis, but I don't see how white can stop
>
>(1) black pins the pawn (c2) on the king at b1 along the diagonal;
>
>(2) black checks the king from behind if on a2/a1/b1..  And obviously going to
>c1 doesn't
>help...
>
>I could (myself, a human) see ways to prevent the pin but not the checks, or
>preventing
>the checks but not the pin.  Black has to force a position where the only check
>is on the
>a1-h1 rank, so that c1=Q interposes, but I couldn't find a way to make this
>happen, in my
>admittedly fairly quick analysis...

Uri failed to accept my challenge. Would you pick up the gauntlet, and play me
in CTF? You have White and take the pawn on e7, and I'll play to demonstrate the
win for Black.

We could play a move per day or 2 or 3 moves a day, or whatever T/C you'ld like.


This way we could do a DEEP analysis.

Regards,
 Terry



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