Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Nice tactical sacrifice plus king safety tuning.

Author: Roy Eassa

Date: 15:01:19 12/09/02

Go up one level in this thread


On December 09, 2002 at 17:55:17, Roy Eassa wrote:

>On December 08, 2002 at 18:08:41, Colin Frayn wrote:
>
>>[D]r1b3k1/2pnn1bp/pp1p3r/2PPp1pq/1P2Pp2/Q1NN1P1P/P3BBP1/2R2RK1 b - -
>>
>>This just came up in an ICC game between Beowulf and Fritz 8.  Fritz (black)
>>played Nxc5! here.  It's fairly tricky to spot - might require some searching.
>>Beowulf had missed this rather nice tactical shot, which of course gives a
>>devastating attack on white's king.
>>
>>Pity ... I was winning up to that point :(
>>
>>Cheers,
>>Col
>
>
>It appears that almost any move by that knight wins; also ...bxc5 first wins
>too.
>
>1...Nxc5!
>
>   [also winning is 1...bxc5 2.Qa5
>      (2.bxc5? Nxc5 and Black wins as in the main line)
>    2...Nb6
>       (2...Nf6 3.Qxc7 Bxh3 -+)
>    3.h4 gxh4 4.bxc5 h3 5.g4 fxg3 6.Bxg3 Rg6 7.Kh1 Rxg3 8.cxb6 Qh4
>    9.Rg1 Rg2 10.Rxg2 hxg2+ 11.Kxg2 Bh3+ 12.Kh2 Bh6 -+]
>
>   [also winning is 1...Nf6 or 1...Nf8 or probably others]
>
>2.Bxc5
>
>   [2.bxc5 Bxh3 as in the main line]
>
>   [2.Nxc5 Bxh3 as in the main line]
>
>   [2.Ne1 Bxh3 as in the main line]
>
>   [2.h4 Nxd3 3.Bxd3 gxh4 4.Kh2 h3 5.g4 Bxg4! 6.fxg4 Qxg4 7.Rg1 Qf3
>    forking the bishops]
>
>2...Bxh3 3.Ne1 Bxg2 4.Nxg2 Qh2+ 5.Kf2 Qg3+ 6.Kg1 Rh2 7.Rf2 Qh3 and Black mates


but not 1...Nb8? 2.cxd6 Bxh3 3.dxe7 {threatening to Queen with check, thus
preventing the thematic ...Bxg2} 3...Bd7 4.Bh4 Qxh4 5.Nd1 unclear




This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.