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Subject: Re: So whats the word on Shredder 9's elo?

Author: Odd Gunnar Malin

Date: 03:22:30 05/01/05

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On April 30, 2005 at 19:59:29, Derek Paquette wrote:

>Interesting, according to the %'s the computer would only be in the IM level for
>the most part, although we continually see it beat humans,
>
>and not only beat them "if they make a mistake"
>there are times when a human has no chance to win and only draw, and during the
>game there were no mistakes made by the human.
>

Quite opposite of what I have seen, usually the human have have an advantage
into the middlegame and lose by doing small errors later.

>For the last several days I have been running non stop test suites of different
>personalities for shredder 9,
>
>so far I have made two stronger personalities than shredder 9 default, scoring
>better in both the test suites and in matches over 50 games a piece.

All I'm interested in is how to use them to get most out them when using them
for analysis. Plus that they have features that make them a good sparring
partner.

>
>So the question is, can a test suite REALLY tell you the strength of a program?
>the program might be able to select the best move in that particular position
>but could never come up with the moves to get to that or any particular
>position.

I see my 'explanation' of the test could be missunderstod.
This test is that the user (or engine) take the side of one player in a game and
start guessing his move. Usually the start is right after you get out of opening
theorie.
You get score for guessing correct move, many position have alternative moves
with scores and some of these alternatives have even higher score than the
played move.
I create the test for the engine after I have made them myself. They are made in
Chess Assistant with its 'complex' test method (it works just like my
GradualTest with a graphical interface). Each move appears as a serie of epd
positions, therefor I use 'keep hash' and learning on to not make them weaker.

For now, I have no intention to go into depth of the test to find any error,
this I leave to they who doupt it. The engines are used here as a collection of
bits whitout their own soul.

Odd Gunnar



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