Author: Severi Salminen
Date: 00:52:18 01/06/01
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On January 05, 2001 at 17:20:09, Bas Hamstra wrote: >In such a situation you assume that that are no good captures. So you return the >score of the evaluation for that node IF it is above Alpha. Otherwise just >Alpha. You mean the 2. case? I think that if all captures are pruned and standpat score is <alpha I should return that instead of alpha. My point for this was that returning something lower than alpha might improve all the researches. I just didn't know how much lower value I could safely return. >>Hi! >> >>1.If I prune a move in normal search: if(material+gain(move)+FMARGIN<=alpha) >>what should I assign to the best score so far? Material+gain, material+FMARGIN, >>material+gain+FMARGIN or material only? Now I'm using material+FMARGIN but it >>can't be right. Material+gain sounds right because that would be returned from >>qsearch if stand pat fails high? >> >>2.I'm using now SEE and I wonder what is the "correct" value to return from >>qsearch if I prune all captures: if(eval()+seescore(move)+MARGIN<=alpha)? Now I >>just return alpha. If all moves result a score<=alpha should I return >>eval+seescore or something else. >> >>I ask this because PVS or aspiration window search doesn't seem to like "wrong >>values" >> >>Severi
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