Re: history heuristics

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Article #4509

#4509

From: Johanes Suhardjo
Date: Mon, 13 Mar 1995 16:50

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On Fri, 10 Mar 1995, Joe Stella wrote:
> If you want to test the HH, set up some tactical positions and see how
> long it takes to find the solutions with and without the HH.

Thanks, I'll try it sometime.

BTW, yesterday I played around with the part of search.c where the
history and killr are saved.  My preliminary conclusion is if we save
them only when (best > beta) it saves 30% less redundant moves and the
program plays better.  Of course I removed killr3 and Swag3.  I can't
play with it again for the next 3 weeks so you guys might want to test
that idea.

                         Johanes Suhardjo (johanes@farida.cc.nd.edu)
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From: Johanes Suhardjo <johanes@farida.cc.nd.edu>
Newsgroups: gnu.chess
Subject: Re: history heuristics
Date: Mon, 13 Mar 1995 11:50:52 -0500
Organization: University of Notre Dame
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