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Subject: Re: Terry is right. Qxe7 looses...

Author: Robert Hyatt

Date: 12:48:52 11/25/02

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On November 25, 2002 at 15:13:37, John Merlino wrote:

>On November 25, 2002 at 14:26:33, Robert Hyatt wrote:
>
>>On November 25, 2002 at 12:56:59, Joachim Rang 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
>>>
>>>yep, Terry is right! You can easily try it for yourself, by let the engines play
>>>against themselves. Althoug many engines show a drawish score in the beginning,
>>>they realize after a few moves, that white is going to loose. But you have at
>>>least give the engines 1 minute per move:
>>>
>>>Here are a few winning lines:
>>
>>I don't like that kind of "proof".  If white makes a mistake that it doesn't
>>understand
>>early on, then it loses later.  That doesn't mean the loss is forced.
>>
>>Note that I am not saying that it is not a loss, but I didn't see anything
>>forced when
>>looking at it myself...
>>
>>>New game
>>>Shootout (Ruffian1)
>>>
>>>1.Qxe7+ Ka2 2.Qe6+ Kb1 3.Kg2 c2 4.Qe4 Qb5 5.Kh2 Kb2 6.Qd4+ Ka2 7.Qa7+ Kb1 8.Qh7
>>>Qd5 9.Kg1 Kb2 10.Qh8+ Ka2 11.Qh6 Qd1+ 12.Kg2 c1Q+- 0-1
>>>
>>
>>IE in the above I would play 3. Qd4 after letting crafty search a while here.
>>Crafty thinks
>>Kg2 definitely leads to a black advantage after a while.  IE the score sticks at
>>0.00 for
>>the queen move I suggested, while it steadily drops after Kg2...
>
>3.Qd4 is not a legal move in the above line. Do you mean 3.Qe4+?
>
>jm


Let me re-do the analysis.  Somehow my analysis for the first position was
deleted,
and the above comment was _supposed_ to follow one of the later games, not the
first one...  I didn't save what I was looking at so will have to reconstruct
the stuff
again.  I _think_ the above 3. Qe4 was for the second "game" given but am not
sure...


Bob



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