Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Mobility in Chess Evaluation Function at terminal-nodes

Author: Roman Hartmann

Date: 12:31:55 12/28/05

Go up one level in this thread


On December 28, 2005 at 15:27:34, Dann Corbit wrote:

>On December 28, 2005 at 15:22:56, Roman Hartmann wrote:
>
>>I just added mobility to my eval and while it kills my kN/s (brought them from
>>1000kN/s down to around 100kN/s) it doesn't seem to hurt the play. But I guess I
>>have to let it play some games first before I make a conclusion. If it's
>>improving the positional play without causing too much tactical dammage I will
>>add a stripped down movegenerator for mobility as I have now quite some overhead
>>having a legal-move-generator with incremental eval (means the eval is in the
>>movegenerator).
>
>How are you calculating mobility?
>A 10:1 loss in speed is very traumatic.
>Unless you are only counting wood in your evaluation, you should not see that
>traumatic of a degradation.

Several problems:
-outdated board design 10x12
-legal move generator instead of pseudo legal
-material/square-only eval (so you're right, I was only counting wood so far)

Roman





This page took 0.01 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.