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Subject: Re: Junior-Fritz, WCCC 1999

Author: Amir Ban

Date: 04:02:27 07/14/99

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On July 13, 1999 at 21:21:43, Scott Knoke wrote:

>On July 12, 1999 at 04:27:35, Amir Ban wrote:
>
>>On July 11, 1999 at 18:49:13, Scott Knoke wrote:
>>
>>>In Junior-Fritz, 9th World Computer Chess Championship, Round 5, White played
>>>19. Nhg1.  This certainly looks like a mistake.  I read here recently that White
>>>may have a winning continuation, but I can't find it.  The best I can find for
>>>White is 19. Rae1 but Black already seems better.  For example, 1. ... Rfc8 20.
>>>Re2 Rc7 and Black's queenside attack will be very strong.
>>>
>>>What should White play?  The game is shown below.  And, is 17. Qh4 really better
>>>than 17. Qg3 ?
>>>
>>
>>According to the post game analysis, it should go (after 19. Rae1 Rfc8 20. Re2
>>Rc7) 21. e6 Qe8 22. Nhg5 hxg5 23. Nxg5 and white wins after Qh7+ and Nf3.
>>
>>In the analysis it was 20 ... Bd5 rather than 20 ... Rc7 but black's moves don't
>>matter here.
>>
>>The way Alterman looks at this position, if necessary white will double rooks on
>>the 2nd rank and will be invulnerable, while black can only wait to be killed on
>>the king side. He may be right, but he certainly overestimated the ability of a
>>program to understand that.
>>
>>Amir
>>
>
>Amir and Torstein:
>
>Thanks for the comments.  Perhaps (after 19. Rae1 Rfc8 20. Re2) Black must play
>the unpleasant 20... Bxf3. Then 21. gxf3 is probably best and White is probably
>better, but not already winning. Of course Black also could play ... Bxf3 on his
>19th move.
>
>Scott
>

Bxf3 at whatever stage looks like suicide to me. It's very hard for me to
imagine a position where the g-file is opened and black survives.

Amir




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