Author: Bruce Moreland
Date: 17:49:23 09/29/99
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On September 29, 1999 at 19:54:01, Dann Corbit wrote: >For NULL move, we have two kinds of situations: > >0. A move is so bad I wish I did not have to make it because I would rather >skip a turn. > >1. An opponent's move is so bad they would not want to make it because they >would rather skip a turn. > >In the first case, it seems we do not need to consider this move unless there >are no alternatives. > >In the second case, similarly unless the *opponent* has no alternatives. > >What I am wondering is "why is the loss of a tempo the magic dividing line?" > >It seems the dividing line could be put anywhere we want. Has anyone >experimented with a floating [don't bother looking here] line that can be >redefined during run time? I know this sounds a lot like ordinary alpha/beta >but what I mean is to change the threshold for null-move to something other than >the normal value. I haven't tried to deal with the first part of this, but I can handle your question a paragraph from the end. The reason you skip a move is in order to determine if the opponent has a threat. If their is bad and they don't even have a threat you have to counter, you are probably doing great. bruce
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