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Re: [Bug-gnubg] Update: Checkerplay vs cube decision errors

From: Joern Thyssen
Subject: Re: [Bug-gnubg] Update: Checkerplay vs cube decision errors
Date: Tue, 18 May 2004 20:48:42 +0000
User-agent: Mutt/

On Tue, May 18, 2004 at 02:51:08PM +0200, Joachim Matussek wrote
> Hello,
> it didn´t let me sleep. 
> After thoroughly examining Kees van Doel´s scripts I have found an
> important misunderstanding. Within his item he uses the term "unforced
> cube decision" but in fact means "actual or close cube decision". This
> lead to many changes. Thus I had to rewrite my article. 
> http://home.arcor.de/joachimmatussek/CheckerVsCubeErrorsImproved.zip

Interesting observations. It's easy to be misled just by noting the
ratio between a2 and b.

However, I've got one comment...:

I've played 7,000+ games online and my average chequerplay error rate
and cube error rate are approximately of the same size, thus for yours
truly, the interesting ratio is a2/b which is in the range 15-25. An
alternative way to say the same is by noting that I give up 5-7 times
more equity in chequerplay errors than cube errors; the factor 5-7 is
then multiplied by your factor of 3. 

The inevitable conclusion is that I should spend my time on improving my
chequer play decisions....


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