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Subject: Re: Why ... egtb format ...

Author: Johan de Koning

Date: 17:17:44 04/02/04

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On April 02, 2004 at 04:58:25, Sune Fischer wrote:

>On April 02, 2004 at 02:13:53, Johan de Koning wrote:
>
>>But as Theron pointed out some years ago, one should avoid *any*
>>probe inside a search.
>
>Do you recall the argument?

Blindly probing after captures results in lots of redundant probes.
Most positions are way off balance (outside [alpha,beta]) and are
interesting only if a 1 or 3 ply tactic exists.

About 2 years ago Chritophe posted he was working/planning on a
set of rules to decide for each material config whether to probe
or not (depending on local depth I guess). Then he went on doing
Palm stuff and other, more important, improvements.

The idea is sound I think, because 1 probe that misses the EGDB
cache is already awfully expensive. But on the other hand, with
6 men, building a set of rules (more imprtantly exceptions) will
be quite a daunting task.

... Johan



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