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Subject: Re: 2 very difficult and wild tactical combinations which programs can't see

Author: Dieter Buerssner

Date: 12:19:35 11/02/01

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On November 02, 2001 at 15:10:02, Dann Corbit wrote:

>Second problem:
>[D]r1bq1r2/p2np1k1/3p2R1/3pP3/2pP4/5N2/PP2Q1P1/2KR1B2 b - - c0 "after Rxg6+";

> 160514334  5:34.0   0.00 12.  1...Kxg6 2.Nh4+ Kh6 3.Qe3+ Kh7 4.Qg5 Nxe5
>                               5.dxe5 e6 6.Qg6+ Kh8 7.Qh6+ Kg8 8.Ng6 Bd7
>                               9.Qh8+ Kf7 10.Qh7+ Ke8 11.Nxf8 Kxf8 12.Qh8+ Kf7
>                               13.Qh7+ Ke8 {HT} {80}

I think Rxg6+ is a forced win. Yace cannot see it. It cannot see 22. Bd3+!
(which here would be 4. Bd3+). When I analyze the line from back to front, I get
a winning score for Rxg6+.

Regards,
Dieter




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