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Subject: Re: Very good results in a test for Glaurung 1.0 Beta at 10' + 5" time

Author: Tord Romstad

Date: 11:35:33 01/14/06

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On January 14, 2006 at 13:35:12, Tomas Casanovas Martinez wrote:

>Hi, Tord,
>
>The settings have been very similars to those of other tests I perform
>regularly... except that I have set ponder 'ON'. I think that in my computer
>ponder 'ON' is not OK for the number one engine Rybka. Their nodes drop to about
>50% in relation to ponder 'OFF' whereas the drop for other programs is about
>25%. I can not repeat the test with ponder 'OFF' at this moment since my
>computer is bussy testing Rybka 101 Beta 10 against two other engines.

All right, I suppose the settings were OK, then.  The results are strange,
but as we all know strange results do happen, especially when the number
of games is so small.

>The unusual number of draws is also surprising for me. Have you set a different
>'draw contempt' in relation to your previous version?. I have not changed
>anything of your standard settings.

No, I haven't made any such changes.  A draw is evaluated as 0.00 pawns, like
in all previous versions.  I also haven't noticed an unusual number of draws in
other games, so it was probably just a random fluctuation in your games.

>One of the aspects that have impressed me more from your 'new Glaurung' is its
>strengh in the endgames. It has been able to save different inferior positions
>in the test, sometimes with an excellent vision. (Take my opinios with care,
>please. I am not a Master, my latest Elo in Spain -20 years ago!- was about
>2060). It would be very nice that anyone of our members, that own engame tests
>to perform, tests Glaurung in this ares.

I have also noticed that the endgame is clearly improved compared to
Glaurung Mainz.  This is rather strange, because I haven't added any new
endgame knowledge at all.  The improved endgame play must be caused
by a better search and hash table code alone.

Tord



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