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Subject: I insist: CSTAL is great but nobody seems to care... (Sinatra)

Author: Fernando Villegas

Date: 19:55:31 05/05/98


Hi all:
Two reasons maybe explain why a post does not get any following at all
and rest miserably alone and without any answer: you are writting about
uninteresting things and/or you write about them when  people is engaged
in another thing and/or you write a louzy english. I wonder which of
these is the reason nobody gave a shit about what I said weeks ago about
CSTAL. Maybe all. Pity because CSTAl is a great programm, something
really new, and even so has not deserved the volume of comments and
discussion we have expended here, many times, to sometimes the most
egotistics considerations or even unchessic issues, in which I have been
a heavy sinner.

I think there are at leats two things about CSTAL that deserves a deep
debate, specially from our programmers here:
First, the clear evidence that CSTAL uses a radically different kind of
search and evaluation function.
Second, the fact that that kind of search and ..etc-.. is of such nature
that CSTAL never will get top positions in computer vs computer
tournaments.
Third, the fact that the previous point means that our actual system to
measure computer strenght maybe has not much sense after all
After many usages my feeling is that CSTAL was really designed -not just
and only the usual marketing slogan about "human style"- to face people,
not machines, and that means CSTAL does not make his calculation on the
presuposition that the opponent is so tactically clever as he is. It is
clear to me that many times you can hold a game along many moves
against, let us say, Rebel o Mchess, not because you are strong enought
to hold a tough battle, BUT because the program believes you will see
the same things he see. So, they avoid tactical lines because there is a
flaw in the 12 ply without considering that we, humans of experts or
Fide master level at most, probably are not capable of seing that flaw
and had been crushed the same. CSTAL does not make such supossition and
so we goes after wild lines that are flawed, but that are pressing for
us. So and in such original and obvious manner he gets results. Am I
mistaken asuming that that means the operation of something different to
the conventional maximin approach? Ed? Bob? Amir?
Fernando



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