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Re: [Bug-gnubg] Why is odd ply equity always lower?

From: Nis
Subject: Re: [Bug-gnubg] Why is odd ply equity always lower?
Date: Thu, 19 Jun 2003 19:00:24 +0200

--On 19 June 2003 09:39 +0000 Joern Thyssen <address@hidden> wrote:

On Thu, Jun 19, 2003 at 10:54:42AM +0200, Nis wrote

--On 19 June 2003 07:20 +0000 Joern Thyssen <address@hidden> wrote:

> On Wed, Jun 18, 2003 at 10:24:38PM +0200, Nis wrote
> [snip]
>> Only relevant for cube decisions?
>> The wrong estimations of equity is mainly a problem of absolute
>> equities.  As Joseph has pointed out, chequerplay relies almost solely
>> on the relative  equities of positions.

>> So we might want to start using reduced evaluation settings for cube
>> decisions

My idea was to set this up in the predefined evaluation settings.

The predefined evaluation settings are identical for chequerplay and
cube decisions -- that's another TODO.

Yep, I see that now.

Also, the predefined settings are just an array of evalcontexts, hence we
should add a parameter to evalcontext to enable n+.5 ply evaluations.

It already contains the nReduced parameter, which I am using for this purpose. The only problem is that it doesn't allow for different settings for cube and chequer, and thus cannot be set differently for the two. That should be fixed by the above. No reason to introduce new parameters, as far as I can see.

Nis Jorgensen

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