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Subject: Re: General Tips and Tricks for debugging a search.

Author: Daniel Shawul

Date: 23:14:04 06/15/05

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On June 15, 2005 at 16:36:54, Eric Oldre wrote:

Probably the most important of all is comparison of
node count between debug and release version, or when you make
something that is just meant to speed things up.
daniel

>
>I was wondering if anyone would like to volunteer any tricks they've
>used to help find certain bugs in their search function.
>
>I think that the ideas of using perft for move generation and
>reversing the board to find bugs in the evaluation have both
>been really useful to me. I was wondering if anyone has used
>techniques similar to these to help find search bugs.
>
>I understand that just because a engine can properly pass these
>and other tests doesn't mean it's free of bugs. But they certainly
>help detect at least some of them.
>
>I'm certain that there must be plenty of bugs in Latista's search
>and I think it's time for me to work on discovering them. If
>you don't have any automated tricks like above. Does anyone
>have any general advise to help me spot some bugs?
>
>Eric Oldre
>
>PS. I have at various spots in my program tried to follow a similar
>model of asserts as in fruit. I'm sure taking some time to
>do this at more parts of my program would help.



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