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Subject: Re: late move reductions

Author: Uri Blass

Date: 01:19:04 03/03/06

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On March 02, 2006 at 03:40:36, Volker Böhm wrote:

>Hi Bob,
>
>for Spike I discovered the following:
>
>Statistically most fail highs occures at the first three moves. The fourth move
>has again some fail highs, all others have very little fail highs.
>
>History based reduction gains at max. 20 Elo compared to a simple move ordering
>based reduction (allways reduce after move 3). The move ordering is based on
>history thus this is again some sort of history based pruning.

I wonder if you really mean always here.

Do you mean also reducing captures and checking moves if they happen after move
3.

How much rating do you get from "simple move ordering based reduction"?

Uri



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