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Subject: Re: Rank (order) moves by time spent last ply?

Author: Miguel A. Ballicora

Date: 12:05:52 01/31/02

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On January 31, 2002 at 14:52:46, Roy Eassa wrote:

>Would it make any sense to rank (i.e., order) moves for examination at ply x+1
>by how long they took to examine at ply x (most to least)?
>
>I saw this because I often see a chess program spend a LOT of time on a move at
>a given ply (sometimes because it's actually the correct move), yet still rank
>that move very low for examination at the next ply.  If it had to spend so much
>longer than higher-ranked moves, there must be something significant going on,
>no?

Good observation!
Yes, in fact that is how some programs sort their moves at the root.
Many will do it with nodes. I do that and it was discussed that Crafty
does something like that except the first ply. I do not know if there
more, but I guess there is.

Regards,
Miguel




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