Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Q: null move

Author: James Robertson

Date: 18:57:48 08/02/99

Go up one level in this thread


On August 02, 1999 at 21:07:38, leonid wrote:

>On August 01, 1999 at 21:02:54, Scott Gasch wrote:
>
>>Ouch...
>>
>>I only can search to 4 ply in that position in 60 sec and my null move succeeds
>>about 40% of the time.  I believe this bad performance has sometime to do with
>>my qeval routine and the fact that it considers all captures/promotes.  I think
>>I need to be more selective about captures in the qeval routine.  My program
>>plays f2f3 after 1 minute of thought.  Here's the report (if anyone cares):
>>
>>  total nodes.....................................4588297
>>  time (sec)......................................60.71
>>  rate (nodes/sec)................................75579

NPS is not bad. How fast is your program?

James

>>
>>  null move successes.............................73
>>  null move failures..............................117
>>  null move success rate..........................38.42%
>>
>>  pawn hash hits..................................4469147
>>  pawn hash misses................................117413
>>  pawn hash success rate..........................97.44%
>
>Your numbers are quite interesting for me, and the most the positions/second
>factor. This number says a  lot even if it some time very evasive. This
>I could see by observing similer numbers on Rebel 10. Can you say on what
>computer you obtained your numbers and what you have exactly working inside
>of your program (like minimax, alpha-beta...).
>
>Leonid.



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.