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Subject: Re: what the heck is up with hiarcs. CEGT rating????

Author: Thorsten Czub

Date: 03:32:02 01/10/06

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On January 10, 2006 at 06:10:34, Joseph Ciarrochi wrote:

>But hiarcs 10 seems to get fairly killed on the cegt list, as does toga1.1
>(http://www.husvankempen.de/nunn/cegtrating4040all.html#3).
>
>what do you think are the optimal conditions for toga and hiarcs to defeat
>rybka?
>
>(i am so tempted to buy hiarcs now)

from my machines i can say that rybka had problems with "styled" hiarcs10,
and with togaII 1.1a.

While hiarcs10 (in default) had problems with rybka, but beated
fruit, f9 and s9 (60-65%).

since rybka had no book i used j9 for rybka. all others used their own book.
i do test 40/40 or 25+10.

I have no idea how the CEGT testing is different from mine.

IMO in the moment it makes not much difference what to buy.
fruit, rybka, hiarcs. they are all good programs.
it seems to be more a question about taste.
if i were you e.g. i would not buy f9 because it is still the same 0.00 ... fail
low - oh oh program.
of course with more knowledge over all. but the sero score and suddenly fail low
behaviour is still in it.
this is not useful for me.
fruit on the other hand is still (IMO) to much search based program. i would
apreciate if fruit would develop into a less search based program.

it seems hiarcs and rybka are knowledged based programs. i would say rybka is
more radical in this then hiarcs is (so far).
On the other hand rybka still has many lacks of knowledge that hiarcs does not
have.
A problem is that hiarcs plays silly book moves in wrong CB-GUI's. i read in
another german forum (kurt utzinger remarked this) that HIS hiarcs10 played
1.e4 e5 2.a3?! although a3 was marked as weak move.
When others tried to replay this, it came out that kurt used an older version of
the GUI.
this older version of the gui (i think it was october 2005 GUI) is still very
common and used by many people. with e4 e5 a3 the "bug" is very easily to see.
but i doubt that you will see it very good in OTHER more deeper opening
situations.
This weakens hiarcs10 depending on the GUI the people have when using the
original h10 book.
for rybka i guess there exist many different versions.
and i think rybka is not very happy when running on slow machines or machines
with SMALL cache such as celeron.

what to buy ?!
depends on what you have so far.
and what you do with the program. i found hiarcs a very good program for
analysis.
when i replay chess games of  all kind of humans and programs, hiarcs gives me a
very precise insight of the game.




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