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Subject: Re: Fail high reductions

Author: Omid David Tabibi

Date: 15:35:55 07/01/03

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On July 01, 2003 at 18:28:25, Russell Reagan wrote:

>On July 01, 2003 at 18:24:43, Omid David Tabibi wrote:
>
>>... which is called verified null-mvoe pruning :)
>
>So if fail high reductions is kind of like null-move without the "radicalness",
>and verified null-move pruning takes the "radicallness" out of null-move, do
>fail high reductions and verified null-move give similar results? :)

Although I haven't compared the two algorithms, it should be obvious that
verified null-move pruning is more accurate than fail-high reductions, since the
depth reduction is based on a shallow null-move search (dynamic) rather than
static evaluation.

Verified null-move pruning and fail-high reductions might share some common
ideas (pointed out by Bob Hyatt), but besides that they have little in common
from a practical point of view.

Anyway, as ususal the suggestion is: try both of them and use the one that works
better for you.



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