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Subject: Re: endgame blunder by DeepFritz7

Author: Terry McCracken

Date: 10:04:22 11/24/02

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On November 23, 2002 at 19:16:23, Jay Hysenbeg wrote:

>On November 23, 2002 at 08:17:02, Terry McCracken wrote:
>
>>On November 23, 2002 at 00:32:08, Robert Hyatt wrote:
>>
>>>On November 23, 2002 at 00:13:32, Terry McCracken wrote:
>>>
>>>>On November 22, 2002 at 23:45:01, Jay Hysenbeg wrote:
>>>>
>>>>>[D]8/4p3/4Q3/8/8/k1p3PP/1q3P1K/8 w - - 0 1
>>>>>wKh2,Qe6,Pf2,g3,h3/bKa3,Qb2,Pc3,e7
>>>>>
>>>>>is this a problem with my deepfritz7 or does this happen with your df7 too. mine
>>>>>fails to see that Qxe7 is a loosing line
>>>
>>>
>>>Is it certain Qe7 loses?  All I can see is a long series of checks and I don't
>>>see how black can find a safe haven from them to promote the pawn...
>>>
>>>I let Crafty run a while and it says 0.00...
>>
>>
>>Bob White can't lose, I just inserted the [D] to look at the position.
>>
>>It looked totally uninteresting.
>>
>>Terry
>chesstiger 15/14 and gambit tiger both see that Qxe7 is losing for white score
>jumps by 5 pawns

Yeah, I really took another look...it appears Qxe7+ is a blunder, Black will
escape the checks!

1.Qa6+! appears to draw. It needs more looking over than I gave it as even Qa6+
and White could lose if not very careful.

But 1.Qxe7+?? is losing.

People "Check" it out!;)

Terry



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