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Subject: Re: Crafty 19.0?

Author: Robert Hyatt

Date: 08:50:09 08/05/02

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On August 05, 2002 at 01:51:12, Slater Wold wrote:

>Bob, I saw on ICC that the latest version of Crafty you're working on is 19.0.
>
>I know in Crafty's history, version number changes signify major changes in
>Crafty itself.
>
>So....what's the big change?  :)
>
>
>Thanks!


Two things (so far).

1.  different way of limiting extensions.  I am now using a "tapered"
extension reduction so that extensions applied near the root are larger
while those applied farther out are smaller.  I also now allow more than
one ply of extensions near the root...

2.  I am dropping msdos support and getting rid of the I/O polling model
to handle pondering.  I am using two threads, one to do I/O and one to do
the search.  It is cleaner...



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