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Subject: Re: Conspiracy -- conshmiracy

Author: Michael Neish

Date: 19:23:15 01/20/00

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On January 20, 2000 at 02:18:51, Ed Schröder wrote:

>You misunderstand. It's the DB main-line for 36.axb5 what made Kasparov
>suspicious. In this main-line DB sacrificed 3 pawns for no direct win
>but for a dangerous looking king attack, all very human-like. Kasparov
>could not believe his eyes (he still can't) and started the accusation
>human intervertion took place as he could not believe a computer was
>able to produce such a (super) main-line.
>
>So this whole issue is NOT about the move 36.axb5 but about the asthonising
>main-line DB produced.

Ed, out of interest, do you happen to know what was the line that DB came up
with?  Was it the same as what was played in the actual game?

I just did what a lot of you must have done: I set my pet program thinking on
the position where DB chose 36. axb5.  In this case I'm using HIARCS 7.  This is
probably very naive, but at 8-ply the score for 32. Qb6 and 32. axb5 was almost
the same.  At 9-ply though it favours Qb6 quite clearly (about +1.7, compared to
+1.0 for axb5).  Maybe the key points in the search lie at deeper plies?  Can
anyone tell me what a program should be able to spot in order to determine that
axb5 is the best move?  And has it been proven beyond doubt by grandmaster
analysis that axb5 is best?

Not trying to prove a point either way.  Just interested.

Cheers,

Mike.




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