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Subject: Re: Diep as a strong sparring opponent (longish)?

Author: Robert Hyatt

Date: 06:41:16 10/14/03

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On October 14, 2003 at 07:43:05, Gian-Carlo Pascutto wrote:

>This problem only exists if you are not able to analyze the weaknesses
>that your engine has well.
>
>Conversely, an engine that is stronger at long time controls today will
>be stronger in rapid next year and stronger in blitz in 2 years.
>
>Whereas an engine that is a good blitzer will just get weaker.
>
>--
>GCP


This is simply not true.  One example.  Try a null-move R=2 program at
_very_ fast time controls against a program like the king or Hiarcs that
doesn't seem to use that.  At very shallow depths, R=2 causes lots of
spectacular search failures by hiding simple tactics.  At deeper depths
this effect is reduced.  There are plenty of examples of heuristics that
work well at shallow depths but fail at deeper depths.  There are also
plenty of examples of heuristics that fail at shallow depths but which
work well at deep depths.

Parallel search efficiency comes to mind.  How efficient are you are 3 plies?
13 plies?

The idea is well-known.



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