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Subject: Re: More and More Plies

Author: Michael Neish

Date: 22:59:57 05/09/00

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>Consider two programs which both reach 9 plies searched, but one has quiescent
>search, SEE, and various extensions and the other does not.  Again, the
>definition is misleading.  I would like to see a definition like this:
>1.  minply {due to NULL-move, etc) is the shallowest actual search depth (IOW
>brute force depth)
>2.  aveply {is the actual search depth with assumption that NULL move or
>whatever pruning mechanism is sound}
>3.  maxply {due to extensions, quiescent search, etc} is the maximum depth
>actually visited.

I see, so you're saying that some programs might be measuring different things
... I didn't think of that.  I would have expected the number of times that
Search() had been called iteratively as the definition of ply depth, and assumed
everyone was doing the same.

I remember playing Hiarcs against a (non-commercial) program that was searching
about twice as deep and still got smashed.

Cheers,

Mike.





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