Author: Sune Fischer
Date: 02:56:15 09/18/04
Go up one level in this thread
On September 18, 2004 at 05:42:20, Richard Pijl wrote: >As far as I can see there are two problems (I encountered both of them myself >:-): >- Even in a stable search you cannot set beta to the upperbound found. The >upperbound is an inclusive bound, so the bound could be the real score. This >problem is easily solved by setting beta=score+1; Ah yes, inclusive as in '<=' :) >- In an instable search, when you get a fail high on the adjusted bound, the >returned score is seen as an exact score as it will be within the alpha-beta >window. I don't think this problem is solved easily. Instead you'll have to >research with the original a-b window. I'm not sure that is worth it. >Richard. Very tricky stuff.. :) Thanks, I'll give it shot! -S.
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.