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Subject: Re: Attn Eelco

Author: Eelco de Groot

Date: 20:11:54 07/20/05

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On July 20, 2005 at 18:28:48, Dom Leste wrote:

>Hi
>I redid my Nunn test against shredder 9 with the new endgame settings i posted
>here. This time with hashtables cleared before game 1 for test purposes :)
>

Hi Dom,

I think those results of Dredd are still looking good against Shredder!
Especially compared to the disastrous SSDF results of Pro Deo against SMK's
destruction machine...



>Previous results with old endgame settings
>Dredd 9.5-10.5 S9
>
>Hashtables cleared before game 1 for both series
>Dredd 8.0-12.0 S9
>
>Dredd.eng with passed pawn=106
>Dredd 9.0-11.0 S9
>

I'm not exactly sure what you mean with clearing the hash tables before game 1?
I suppose you don't mean clearing any learning results as learning is not
switched on in Dredd, but hash should be cleared anyway automatically By Pro Deo
between games. At least that is what I think should be happening, but it can't
hurt to do it again manually. In Chess Partner's Engine Research Tool matches
you can unload and reload the engines after each game, I always do that. And
with testpositions I usually also unload and reload Pro Deo's engine, clear  the
game, reload the game with the position to test and also clear hashtables every
time before I try another setting.

Good results! The results and games will vary slightly anyway, so that makes it
it bit harder to see any difference of a new setting. You either have to trust
your own analysis of many games or play really a lot more games, hundreds of
them, to compare settings with more statistical methods. But these new Dredd
results seem good!



>I tried master.eng in CP GUI, still with a position of over -1.05 it used the
>midgame.eng Must be a bug on my side :(
>

That is strange. The only thing I can think of is maybe it does not work when
MASTER.ENG does not have all of the different engines loaded, like in default
MASTER.ENG

[When OPENING = opening.eng]           * opening.eng
[When MIDGAME = midgame.eng]           * midgame.eng
[When EARLY ENDGAME = endgame0.eng]    * endgame0.eng
[When NORMAL ENDGAME = endgame1.eng]   * endgame1.eng
[When SIMPLE ENDGAME = endgame2.eng]   * endgame2.eng
[When SCORE DOWN = down.eng]           * down.eng
[When SCORE UP = up.eng]               * up.eng

I think in Dredd not all different engine files are used, but did you maybe test
this with the default MASTER.ENG? And let it play at least a couple of moves in
a row with just one color?

>Next up Nunn test against fruit 2.1 Hopefully fruit wont make my setting
>looklike a fruitcake :O

You sure pick difficult to beat opponents Dom! But would be nice to see some
results of Pro Deo against Fruit.

 Eelco
>
>Dom



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