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Subject: Re: Measuring program improvement

Author: Ed Schröder

Date: 21:07:36 11/16/01

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On November 16, 2001 at 18:46:35, Brian Richardson wrote:

>I am somewhat frustrated.  I made some changes to Tinker adding lazy eval and
>some other terms and then tested several things.
>
>It improved nps speed by about 30%.
>
>It improved WAC results.
>
>It won or drew every self play game (blitz and standard).
>
>Then I put the new version up to play at ICC.
>It promptly lost 100 points in blitz and standard !?
>
>This is not the first time that my "enhancements" seemed to improve things but
>turned out to play worse in actual games.
>
>Does this sort of thing happen to others too?
>
>Thanks
>Brian


Lazy eval is dangerous, if not done well you can lose a lot of positional
strength.

Ed



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