Author: Omid David Tabibi
Date: 06:16:09 11/21/02
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On November 21, 2002 at 08:34:36, Uri Blass wrote: >1)I do not find in the pseudo code in figure 3 undo null move. > >I assume that it should be before if value>=beta and after value=-search(...) >Am I right? > That is why it is called *pseudo*-code :-) You have to fill in the obvious parts by yourself... >2)What is the value of the research for tactical strength? >Should it help significantly relative to searching to reduced depth when >value>=beta without research (even when we get value that is less than beta). > I didn't understand the question. Dp you mean doing a shallow search even when we don't have a fail-high report?! > >3)What should be in the research? >I think that only calling search with the original alpha and beta. > With the original alpha and beta (which should be backed up somewhere). >My first thought was that I can do it at the end of the search but the problem >is that at this stage I do not know alpha. > >Note that in movei I did not use (!verify||depth>1) because I do not do null >move with depth=1 so this condition always happen. > >Uri
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