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Subject: Re: RK 2003 [120'/60] After 140 games, Comparison of books

Author: zeidoun

Date: 10:21:43 08/05/03

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Thanks Kurt for your kindness.
I just want to tell you that i tested Shredder 7.04 Attack1.2 settings not only
against Shredder 7 but also against the Top 10 Commercial chess engines (CT15,
CT14, DJ8, DJ8XX, DJ8ZY, F8, DF7, F7, F6, Sh6.02, Sh6 and Sh7). The results of
my tests confirm that this settings is perhaps stronger than Sh7.04 in my old
PIII 733 Mhz with Hash 16Mo.
I will publish my up_date in a few days and hope you will enjoy the games.
I have many ideas, especially concerning the Learning Option.
I set the learning option off into my tournaments to let the engines with the
same chances (But i forgot to let it Off and i run the same match between the
same engines into the same tournament conditions and the same openings and i was
surprised!!!!) ==> But my little experience with the learning option on isn't
really very "strange". In fact, sometimes the engine choose another line that's
completely wrong even after winning a game with another line and i could tell
you that the are many examples. I noticed that this option chooses independently
of the result of the game to ovoid or not a line. For example:
1.d4 d5 2.c4 dc4 3.e4 Nf6 (e7-e6) The move between () is the second move that
the engine takes into account while pondering. Even if he wins the game as black
after playing such a line, he will at the next game when the same moves come
arround play e7-e6. And many other examples will follow.
So i think that this function is not so developped and it will be sometimes a
handicap for the engine who got it, because he will play less powerful lines (in
fact he will choose the second most advantagous line which isn't always one of
the best moves).
So i hope than Mr Stefen Meyer Kahlen and all chess programmers that use such an
option will pay more attention to this and think to develop it more. But after
playing many games from the same line i think that this  function will become a
sword against the other engines, because it will automatically know the best
line after statistical evaluation of the result of the games.

Hope that you will be convinced by my experience and try later these settings in
classic time controls after seeing my games in the next up_date.



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