Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: How do you insure that Hash Table entries are correct?

Author: Larry Griffiths

Date: 13:28:06 09/17/00

Go up one level in this thread


On September 17, 2000 at 15:49:12, Vincent Diepeveen wrote:

>
>If you hash 10^40 positions roughly to 2^64
>then there will be positions the same, however using
>better random numbers you will usually prevent
>that you get a lot of them while searching.
>
>Also store side to move as extra bit and store bound and depth,
>that all helps.

Thanks Vincent!

I am storing all of the above except bound.

I found TWO bugs in my code.
The first bug was not updating the smallboard when restoreing castleing,
and the second bug was not initilizing my smallboard
when I loaded an EPD string (DUH).

I have not gotten any mis-matches yet

One happy Camper :)

Larry.



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.