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Re: [Bug-gnubg] epc bug?


From: chase_bg
Subject: Re: [Bug-gnubg] epc bug?
Date: Sat, 02 Jun 2007 16:49:28 -0400

So a one-sided rollout is done "on the fly" to derive the epc? If so, is
this done on 0-ply with a static seed? How many trials? Can't see how
the settings would matter much; I'm just curious.

Thanks.

Chase

On Sat, 2 Jun 2007 22:40:54 +0200, "Christian Anthon"
<address@hidden> said:
> These positions fall outside the normal database (15 checkers on 6
> points), so unless you have a larger database the epc is determined by
> a one-sided rollout and small variations are to be expected.
> 
> Christian.
> 
> On 6/2/07, address@hidden <address@hidden> wrote:
> > Daniel Murphy noted this on bgonline.org.
> >
> > Two positions:
> >
> > Position ID: bbsFEQC1u00AAA
> > Match ID: MAHgACAAEAAA
> >
> > Position ID: td1KAQC1u00AAA
> > Match ID: MAEAAAAAAAAA
> >
> > The position of the player on roll is the same in each. The epc for that
> > player is reported as 79.841 in the first position. but 79.759 in the
> > second position. I experimented by making further changes to the
> > position of the player not on roll and, sure enough, these changes
> > caused the epc to change for the player on roll as well.
> >
> > Chase
> >
> > --
> > http://www.fastmail.fm - Access all of your messages and folders
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> >
> >
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> >

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