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Subject: Re: History pruning

Author: Vasik Rajlich

Date: 02:35:42 03/01/06

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On February 28, 2006 at 19:50:09, Tord Romstad wrote:

>On February 28, 2006 at 18:05:32, Miguel A. Ballicora wrote:
>
>>This one:
>>
>>>>>		if (nodecount == 15 && depth == 2) {
>>>>>			depth--;
>>>>>		}
>>Is exactly what Tord mentions (a very simple raw version) applied close to the
>>tips.
>
>In a certain sense, it is exactly the opposite of what I do.  I only
>use reductions *far* from the leaves; more specifically when deph > 2.
>Before I started using null move threat detection to improve the tactical
>accuracy, I had to use depth > 3 in order to avoid too many horizon
>effect problems.
>
>Tord

That's one difference. The really big difference was the "if (nodecount == 15)
break;". That's Shannon B-type search!

Vas



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