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Subject: Re: If this Position is WCSAC 738 They Have The Wrong Position!

Author: leonid

Date: 09:22:58 10/15/01

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On October 14, 2001 at 22:55:30, Terry McCracken wrote:

>On October 14, 2001 at 22:44:57, leonid wrote:
>
>>On October 14, 2001 at 19:31:31, Terry McCracken wrote:
>>
>>>On October 14, 2001 at 11:28:53, Terry McCracken wrote:
>>>
>>>>On October 13, 2001 at 23:48:51, Miguel A. Ballicora wrote:
>>>>
>>>>>This is WCSAC 738:
>>>>>[D]r1b2r2/3pNpkp/3pn1p1/2pN3P/2PnP3/q3QP2/4BKP1/1R5R w - - bm Qh6+;
>>>>>
>>>>>Der Bringer with "two best options" in analyzing mode finds
>>>>>after 10 plies that Qh6+ is Mate in 11. Funny is that the uninteresting
>>>>>move Qd2 is also mate in 11!! Unbelievable what computers can find.
>>>>>Another cook and another position from WCSAC eliminated.
>>>>>
>>>>>Regards,
>>>>>Miguel
>>>>
>>>>The position is missing a couple of pawns, one crucial!
>>>>
>>>>[D]r1b2r2/1p1pNpkp/3pn1p1/2pN3P/2PnP3/q3QP2/p3BKP1/1R5R w - - bm Qh6+;
>>>>
>>>>
>>>>So the answer is *only* Qh6+!!
>>>>
>>>>Terry
>>
>>Pretty good position! Was not able to see by myself which move must lead to
>>mate. Program see much better.
>>
>>Celeron 600Mhz. No hash. LLchess. Selective search find mate in 11 moves, in
>>0.055 sec. E3-H6.
>>
>>Leonid.
>
>I first saw this position in 1989, I solved it as an excercise in mating
>attacks.

I am not that sure that I could see the leading move even after few minutes. Not
all the time those "easy moves" is very easy to find. I expected more some
mistake in a second position that real mate.

>I don't remeber my time, but Qh6+!! was my first inclination, then I worked
>it out in a matter of several minutes.
>
>I then gave it to my Mach III Master in Jan. 1990, it took it 2 min. 45 seconds
>if I'm not mistaken.

What is the Mach III Master? Some kind of stand alone electronic chess game?
If it is what I think, the last time when I had something similar was around 13
years ago. Then it was Radio Shack made gadget.


>Better time than me!;-)

Try to put from time to time here some position from real life, like the last
forced mate. It is fun to solve them.

Leonid.

>Terry



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