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Subject: Re: How, and how well do chess engines attack [& defend vs attacks]?

Author: Serge Desmarais

Date: 15:01:57 08/27/98

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>I think chess programs are better at defense. The Junior 5.0 Vs GM Yudasin is a
>good example of this. Junior 5.0 attacked Yudasin’s kingside when there was no
>positional justification to base an attack. This cost Junior 5 a pawn and could
>of cost Junior 5 the game except for computer programs ability not to get upset
>or nervous and just play the position. Here the patience of a chess program can
>do wonders. Junior 5 saw a chance to draw the game through pure calculation and
>did so. I think defense takes more of a tactical touch and that’s where chess
>programs are strong. The attack can be much more speculative and that’s where
>human intuition can be much more of an advantage.


   I think Fritz 5 is quite good at attacking, making speculative sacrifices to
open up lines towards the ennemy king. Sometimes, the sacrifice is not correct
and it loses, but one has to take risks to win. Were all Tal's sacrifices
correct? Or at other times, Fritz 5 brings its pieces closer to the ennemy king,
"hoping" (?) some breach or possibility would appear... And it works, sometimes,
as I saw on the ICC where a Fritz 5 running on a Cyrix P150+ with 80 Megs RAM
(32 Megs hash) had a devastating attack against a Crafty version 15.x running on
a PII 400 MHZ with 128 Megs RAM. The same repeated in several games. One of the
rare few (as I know) that is doing the like. Maybe Rebel 9 does so, as I saw in
a few games in the SSDF's .CBF files...

Serge Desmarais



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