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Subject: Re: Quantifying the benefits of fractional extensions

Author: Gian-Carlo Pascutto

Date: 14:39:14 01/13/01

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On January 13, 2001 at 17:19:19, Robert Hyatt wrote:

>Do as I did.  Make the extension amount something you can set via command.
>Then run a potload of tests.  I ran WAC with all the extensions set to
>values between .5 and 1.0, in increments of .25.  That is 3 cases for
>each extension and I varied 4 different extensions.  81 tests and you then
>look at which ones needed the fewest total nodes to solve _all_ the test
>positions...

Doesn't that have the disadvantage of tuning the extensions only
for WAC, but not for general chess play? You can hardly say that
WAC are 'typical' positions...

Since I'm not solving all of WAC yet in 'acceptable' time your
method seems hard to apply. I'm not sure just picking the one
that just solves most is the right thing to do for the above reason.

Especially because that happens to be the one _without_ fractional and
recapture extensions.

--
GCP



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