Author: Vincent Diepeveen
Date: 11:26:20 06/20/01
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On June 20, 2001 at 12:21:04, Geo Disher wrote:
>Game two had a couple of key moves that were questioned by Kasparov after the
>match. Could someone tell me what those moves were? I am thinking of just
>letting my computer evaluate those positions for a few months if they will run
>that long to see if the deep blue moves ever show up as preferred moves. I
>understand that even running the programs that long will not come close to the
>number of moves DB went through but still I am interested in the result. I
>think others have done this in the past but maybe not with the newer software.
Kasparov questionned Be4 move.
This distracted audience from the poor level of Kasparov.
Be4 is simple explainable. note deep blue searched around 11 ply there,
diep version 1997 played Be4 too, because diep had high penalty for
opposite bishops in those days. Note that Qb6 later appeared to be
easily winning for white after some extensive analysis of Seirawan
and later i only repeated those. The opposite bishops ending there
is simply won for white.
It's understandable that in 1997 more as 1 program didn't play Qb6 but
preferred the first few plies Be4 there. Note that also in the Qb6
line there are some great sacraficial lines which are from computerviewpoint
not so relevant, but those also draw for black (sacraficing a6 and e4).
Crafty in those days played Be4 too up to a certain depth.
Basically all programs which had a big penalty for opposite bishops.
Initially DIEP likes Be4 now too, but already quickly it gets way bigger
search depths as Deep Blue ever got, and then Qb6 fails higher and higher
and in the end it gets played.
That kasparov questionned this move shows 2 things
a) he knows nothing from computerchess
b) he distracted the attention of the audience from his bad level
in this game.
Kasparov has made not only weak opening moves in this game, not
only missed a draw at the moment he resigned, but he also made
some major strategical errors. Seirawan explains these major
errors by saying: "kasparov never plays ruy-lopez with black,
i do, so i would play it way better as kasparov here".
Best regards,
Vincent
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