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Subject: Re: Using Perft to debug a Move Generator?

Author: Michael Yee

Date: 05:28:44 01/26/04

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On January 26, 2004 at 05:55:58, Steve Maughan wrote:

>I'm currently using Peter McKenzie's excellent PERFT resource to debug the new
>Monarch move generation routines.  Needless to say my number's do not aggree
>with Peter's - I clearly have a couple of bugs.  What I'd like to do is use a
>program like YACE or Delfi which have Perft routines to narrow the search for
>the bugs i.e. look at the subtrees of the positions on Peter's page and narrow
>the bugs down.
>
>So the question is what's the easiest way of setting up a position and running
>Perft?  Do any of the GUIs support ad-hoc commands?
>
>Thanks,
>
>Steve

Hi Steve,

Sharper (by Albert Bertilsson) includes a "divide x" command that's like perft
but gives the subtree counts for each legal move in the root position.

Michael



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