Author: Tony Werten
Date: 22:25:24 09/28/01
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On September 28, 2001 at 14:37:32, Alvaro Jose Povoa Cardoso wrote: >Suppose I'm doing a 12 ply search and at ply 2 I have a promotion or a pawn at >the 7th rank. >Should I extend? Or should I extend these cases only at frontier nodes / >qsearch? >My reason is that if we are a ply 2 we don't need to extend because we have 10 >ply remaining to search. >But if we are at fontier nodes or at quiescence search then we need to search >deeper these and other cases. >So, could we only do extensions at frontier nodes and at qsearch? >Perhaps my idea/concept of extensions is incorrect. >Could someone comment on this? As others have said already, you should. There are situation where you don't. If material is already very bad. ie I am more than a queen behind and you push a pawn to the 7th. No need to extend here ( well, depends on the window of course) Tony > >Best regards, >Alvaro Cardoso
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