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Subject: Re: WAC 264/300 How bad?

Author: Tony Werten

Date: 02:32:20 03/20/01

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On March 19, 2001 at 13:57:17, Bruce Moreland wrote:

>On March 19, 2001 at 12:38:06, Miguel A. Ballicora wrote:
>
>>I just implemented in my program "Gaviota" the ability to process a epd file
>>as a test. So I ran WAC in AMD K6-2 400 mhz 20 seconds each position
>>and it solved 264 out of 300. How bad/good is that for a program that is ~2000?
>>
>>Regards,
>>Miguel
>
>If you mean does that correlate, I'd guess it does.  The stronger programs will
>easily get somewhere over 290 in that time.
>
>It does suggest that you have some opportunity for improvement.  My guess is
>that you can still improve effective tactical speed by a factor of 20 or so.
>
>Recapture extension will help, as will null move R=2 if you are not doing it,
>and a single-response-to-check extension.

The last 2 are sure things, but be carefull with the first one. The
recaptureextensions seem to be very program dependent. I took them out about a
year ago and saw an improvement.

They are the easiest to implement though so you should give them a try. They
seem to help for smaller evaluationfunctions.

cheers,

Tony

>
>bruce



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