Author: Robert Hyatt
Date: 05:31:28 06/03/98
Go up one level in this thread
On June 03, 1998 at 02:45:34, Roland Pfister wrote: > >On June 02, 1998 at 21:27:57, Robert Hyatt wrote: > >>On June 02, 1998 at 17:50:53, Peter Fendrich wrote: >> >>>How are you doing things during a Nullmove path? >>> >>>I don't: >>> - save Princ. Var (of course!) >>> - save Killer moves >>> - increments the History Killer >>> - save positons in Hash tables >>> >>>But maybe it's better to save moves in the hash tables during null move >>>searches? >>> >>>//Peter >> >> >>I store hash entries, update the killer/history values, and do >>*everything* >>I normally do... > >So do I. I just don't allow extensions if a nillmove is in the path. I do normal extensions and everything else, as I want that null move search to fail high... and the best way to do so is to follow checks and so forth to prove that "passing" is really ok, showing that the current position is good enough that even passing doesn't hurt.
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