Author: Bernd Nürnberger
Date: 04:18:57 04/01/04
Go up one level in this thread
On April 01, 2004 at 05:09:34, Vasik Rajlich wrote:
>On March 31, 2004 at 07:43:59, Bernd Nürnberger wrote:
>
>>Hello,
>>
>>[introduction]
>>(1)
>>[PV varies widly with different mvoe orderings]
>>(2)
>>[60-80% FH with MVV/LVA, PVS, history heuristics, hash table]
>>(3)
>>[SEE description wanted!]
>>
>Your move ordering is quite ok.
Well, 80% or quite o.k., 60% are somewhat low I think. Compared to the simple
minmax (resp. the perft values), alpha beta with some enhancements is an
although very amazing in my opinion!!
>There should be no big difference between mmv/lva for move ordering. (Untested
>hypothesis actually.) Killers should help.
Do you mean, moving from MVV/LVA to SEE will not reduce my tree size
drastically? Killers did not help very much two months ago, maybe because
they are very similiar to the history heuristics?!
>The main thing which will drive up your first cut rate is internal iterative
>deepening. (If you have it implemented and are getting 60-80%, then you have a
>bug.)
Maybe this is really a good idea! I did not try it so far, and I will
surely try it the next days. Thanks for this advice!
Greetings,
Bernd
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