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Subject: Re: Real Sacrifices Part II

Author: Komputer Korner

Date: 11:33:47 12/15/98

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On December 15, 1998 at 04:50:28, Harald Faber wrote:

>On December 15, 1998 at 03:06:54, Laurence Chen wrote:
>
>>From the replies to the posting I read so far about this trick subject, it seems
>>that the majority of chessplayer think that real sacrifices are unsound and it
>>should not be played, and that because of this the chess engine does not play
>>it.
>
>To make a long story in a short answer:
>Sacs are hard to refuse OTB. That is the only reason some masters and GMs play
>some. They pull up some confusing struggle knowing that the opponent won't be
>able to save the game because of 2 aspects: 1) king safety/ under pressure
>(=psychology) and 2) time. Maybe the GM knows that the sac is unsound. He plays
>it becasue he knows there is only one defence and the opp won't find it.
>In corespondence chess you have to be much more carefully.
>The only programs playing risky sacs are the ones that have a sound eval for
>king safety and attacking potential, MCP, The King, WChess and CSTal come in
>mind for that case. MAYBE Junior5. Fritz won't play it unless it is sure to win
>material. :-)

I have found over 150 real sacrifices in the openings that are unclear and could
be played in correspondence games. There are about 5 new ones a year.
The highest positional compensation for minor piece sacs is 2 pawns worth with
very few exceptions. I have written an article about this and was intending to
publish a book on it but couldn't find a publisher.
--
Komputer Korner



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