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Subject: Re: Fruit: first observations. Not a coconut yet, a budding pomegranate

Author: Fabien Letouzey

Date: 02:02:28 03/12/04

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On March 12, 2004 at 02:04:31, Uri Blass wrote:

>I understand but I try to explain what is the reason that fruit get good
>results inspite of having almost no evaluation(it has only piece square table
>and few boolean features and has for example no king safety evaluation and no
>endgame knowledge)

Maybe we should wait for more time before claiming any "good results".
They are not apparent at all to me.
Any pointer?

>The fact that based on the results that I read if you add to fruit book it
seems
>to be only something like 100 elo weaker than Crafty is surprising and suggest
>that something should be improved in the search of Crafty.

Where does this estimate come from?
I haven't tested matches against Crafty because I considered it a loss of time
(on my computer); to me Crafty is obviously at the very least 200 elo points
stronger.

>Maybe you need to do other changes in the search before ETC works for you(for
>examples checks in the first ply of the qsearch and changing that are done by
>fruit and changing R=2/3 to R=3 after having checks in the first ply of the
>qsearch).

Uri,

Read Crafty's main.c (yes you have done so, so read it again).
Bob has tried all that, and discarded them after testing.

>Uri




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