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Subject: Re: How to avoid this? A question for AnMon, Crafty, Tiger & Rebel !

Author: Robert Hyatt

Date: 11:41:46 06/05/01

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On June 04, 2001 at 08:30:55, Aloisio Ponti Lopes wrote:

>On June 04, 2001 at 04:20:59, Kurt Utzinger wrote:
>
>>The choosen opening [Stonewall] is in so far already old fashioned as there are
>>hundred of examples showing that with this pattern you can beat all chess
>>computer programs. AnMon is therefore not to blame for the defeat, the chess
>>programs are nowadys [still] absolutely helpless against this kind of attack.
>
>So there's no way AnMon can avoid this kind of formation (Stonewall with colors
>reversed)?
>How does Crafty handles these kind of positions? What about Tiger "anti-human"
>and Rebel "anti-GM" ?
>
>A. Ponti


Crafty recognizes the "pattern".  The main problem is that if black is stuck
with pawns on d5 and e6, then he has a huge problem in getting pieces over to
the king-side after castling.  His c8 bishop is trapped behind the e6 pawn,
for example.  In the case of Crafty, it simply tries to avoid castling on the
king-side once it recognizes the stonewall pattern in the pawns (this is a
"fuzzy match" of course.)  It waits to castle until it is really necessary,
which makes white commit to the kingside attack or queen-side expansion first,
which avoids the trouble almost all of the time.



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