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Subject: Re: It was true when it was written

Author: Uri Blass

Date: 11:07:46 02/25/04

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On February 25, 2004 at 13:49:05, Gian-Carlo Pascutto wrote:

>On February 24, 2004 at 16:10:12, Darren Rushton wrote:
>
>>[D]2rq1rk1/pb1pn1pp/1p2p3/2pn1p2/3P2P1/P1PBPN1P/1P1NQP1R/1K1R4 b - - 0 15
>>
>>Alterman - Deep Sjeng
>>
>>
>>Deep Sjeng is the only software which finds 15...Nxc3+!!
>
>The exact same thing has been posted at least 2 times before already.
>
>When I wrote this, Deep Sjeng 1.0 was current, and none of the professionals
>or best amateurs could find the move in a short amount of time. It's now about
>1 year later and other people have improved too, so some other programs can
>also find it reasonably quickly.
>
>Deep Sjeng 1.5/1.6 are actually a bit slower than 1.0 on this position.
>
>I left the position there because it's still indicative of Deep Sjeng's style.
>
>And for the ones wondering, the sacrifice is 100% correct and crushing, just
>analyze a bit further :)
>
>--
>GCP

The sacrifice seems to be correct but I could not prove a win for black against
correct defence and black has only rook and 2 pawns for 2 knights

I could see no forced win for black after a line like

1...Nxc3+ 2.bxc3 Nd5 3.Rc1 cxd4 4.Nxd4! or even after 3.Kc2 instead of 3.Rc1

Uri



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