Computer Chess Club Archives




Subject: Re: Book design

Author: David Rasmussen

Date: 01:55:39 11/28/02

Go up one level in this thread

On November 28, 2002 at 04:42:26, Sune Fischer wrote:

>True, but my gut feeling is that storing 8 bytes per position (plus their moves)
>still makes quite a large book? I guess 6-7 bytes will be enough though.

First of all, you don't store their moves, exactly because hashing takes care of
transpositions. If you want the positions following some moves in a certain
position to be in your book, you put book entries with _their_ hash keys in the
For a simple book, storing just the hash keys and nothing else will suffice. If
you want to generate large books automatically from pgn files, you want to have
some control over which positions make it to the book and which do not, and also
which positions in the book, you actually want to reach and which you do not. So
you'll have to store information about how many times white won, drew or lost
from the current position etc.


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.