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Subject: Re: A possible DB analysis move

Author: Dann Corbit

Date: 17:07:11 07/23/02

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On July 23, 2002 at 18:32:27, Robert Hyatt wrote:

>A few years ago, Komputer Korner had a "correspondence kup" match with Crafty,
>chessmaster and some other programs, playing a correspondence tournament.  In
>that match, Crafty found a wild sacrifice to play against Chessmaster, I think
>it was Nf6.  After searching for 24 hours or whatever the time limit was, Crafty
>saw a draw score.  And it saw a draw score for the next couple of moves.
>
>Right after Crafty played that move, Hsu sent me an email saying "brilliant
>move".  I told him Crafty only saw a draw.  He said "let it keep searching...
>DB Jr saw +2.5 very quickly."  Sure enough, a few moves later Crafty realized
>it was not just drawing, it was winning easily.
>
>I will try to find the game.  If anybody has it, perhaps _that_ position will
>be a good one to see how long it takes today's programs to find the move and
>find it is winning, compared to DB1 back in 1996...
>
>I will see what I can find...
>
>I think the event was called "the komputer kup korrespondence tournament" or
>something similar...

After 12 minutes on a 950 MHz Athlon, Chess Tiger 14 wants to move the Bishop to
h6:

[D]r1b1r1k1/1q3ppp/ppn5/2bNp3/P4B2/5Q1P/BP3PP1/R2R2K1 w - - ce 10; acd 15; acs
720; pv Bh6 Re6 Be3 Rb8 Bxc5 bxc5 Nc3 Re7 Rd6 e4 Qg3 Rc7 Rb1 Bf5 Nd5;|Bf4h6

Approximately a draw score.



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