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Subject: Re: Q: null move

Author: James Robertson

Date: 18:58:18 08/02/99

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On August 02, 1999 at 21:57:48, James Robertson wrote:

>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?

Wasn't thinking, meant computer.

James

>
>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.



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