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Subject: Re: Don't forget CC Challenge!

Author: blass uri

Date: 13:52:29 03/22/00

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On March 22, 2000 at 16:25:39, Gian-Carlo Pascutto wrote:

>On March 22, 2000 at 06:05:53, blass uri wrote:
>
>>I think that it is a mistake in correspondence games and that they should
>>calculate evaluation for the second and third best move in the first iterations
>>in order to know better which lines to extend(this is what humans with the help
>>of computer do in correspondence games) but I do not know about one program >that does it.
>>
>>I have not nimzo and Fritz6 but I do not think that they are different and I
>>guess they do the same typical mistakes of chess programs.
>
>You are wrong.
>
>Any program that uses the Fritz 5.32 or Fritz 6 interface (including
>Hiarcs, Nimzo, Junior, ...) has a correspondence analysis mode that
>works exactly as you describe.
>
>--
>GCP


The correspondence analysis is not used in the correpondence games of steve
otherwise Nimzo and Fritz could not get big depthes.

The correspondence analysis does not work exactly as I described.
My idea was not to avoid analyzing the root position for a long time but to
analyze some options in the root in the first iterations(in the last iterations
you can use the knowledge to decide how much to extend them).



I have chessbase engines

1)The correspondence analysis gives a tree and does not give a move.
It is possible to find a move based on the tree but it is better to give the
program to calculate for a long time because the program may miss a surprising
move close to the root of the tree.


2)The correspondence analysis does not use a good method about which lines to
extend(it extends the same if the difference between the best and second best is
0.01 pawns or 0.5 pawns).

I think that it is a joke and I do not use it for analyzing games.

I use many other methods:

1) giving the program a long time to calculate without calculating the second
best move
2)giving the program to calculate more than one option at the root to see which
lines to analyze.
3)engine-engines games at slow time control from the root position or from other
interesting positions close to the root(I prefer this method because I can see
evaluations after every move when I cannot see evaluations after every move in
correspondence analysis mode)


Uri



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