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Subject: Re: Proof for the CSS Claim that WM-Test Elo Numbers meant Strength!

Author: Steve Glanzfeld

Date: 14:35:30 06/14/04

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On June 14, 2004 at 17:18:33, Sandro Necchi wrote:

[...]

>Look this simple answer and think about:
>
>1. a !! move is not 100% a sure win; it only give better winning chances most
>   of the time.
>
>2. a ! move gives only equality or a small edge in most cases.
>
>3. 2 ? moves are good enough to lose!
>
>4. a ?? moves is most of the time a loosing move.
>
>So we can conclude that:
>
>1. to be able to find the best moves in many positions not necessarely makes
>   the program stronger.
>
>2. To make several mistakes or weak moves does make the program weaker!

Sorry, I still don't get this. The above is clear to me, but: A good test will
check if for example how often the ! and !! moves are are found from the test
set, and how often ? and ?? moves are avoided. Let's imagine we have a program
which is able to do so very often, while another program can do that much less
often.

What's wrong now when I say the first program must be stronger than the second?

I don't assume you'd say it doesn't matter if a program finds !/!! move or not,
or if it avoids ?/?? moves or not :) I thought that's all what chess programming
is about: Finding the good moves, avoiding the bad moves, more often than the
competitor can.

Steve



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