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Subject: Re: SSDF(Fruit 2.2.1 - Junior 9)A1200, 2-0, now 20.5-15.5

Author: Uri Blass

Date: 02:50:31 11/19/05

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I wonder what happened to the famous learning of the chessbase programs

From the fruit page about future plans:

"Book-learning and position-learning (perhaps but not very likely -
book-learning is not easy to implement in a UCI-Engine)"

Note that the chessbase programs are supposed to have book learning and I
remember that old Fritz beated Rebel8 again and again in the same line because
Rebel did not have book learning.

People could expect based on these observations that Fruit is going to lose
matches in the ssdf because of lack of learning (or at least to score worse in
the second half of the match but I do not see it happens).

I wonder if there is a bug in the implementation of learning by chessbase.

Note that based on the match against shredder9 that is supposed to have
positional learning it seems that positional learning also did not help Shredder
against fruit.

I did not look at the games of the ssdf to find out but I wonder if the
opponents of fruit did not try to repeat lines that they beated fruit and I
wonder if it had no effect(even if they cannot repeat the same lines exactly I
expect repeating similiar lines to have bigger probability to lead to similiar
results).

Is there something wrong in my assumptions?

Uri



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