Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: computer calculations of number of ways to play first 10-ply

Author: Danniel Corbit

Date: 21:59:28 07/28/98

Go up one level in this thread


On July 28, 1998 at 23:07:40, Steven J. Edwards wrote:

>Here are the numbers for trajectory enumerations (distinct legal pathways) for
>the first few ply depth values:
>
>ply: 0   count: 1
>ply: 1   count: 20
For the first move for white, there are obviously 20 legal possible moves.
[pawns up 1 or 2 spaces = 16 + the four knight moves].  So what does the count
of 1 at ply zero mean?

>ply: 2   count: 400
>ply: 3   count: 8902
>ply: 4   count: 197281
>ply: 5   count: 4865609
>
>For ply=6, the number is a little under 120 million and for ply=7 it's about 3.1
>billion.  I haven't calculated ply=8 yet, but is should be just under 100
>billion.
>
>-- Steven (sje@mv.mv.com)



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.