Author: Robert Hyatt
Date: 10:31:24 09/22/98
Go up one level in this thread
On September 22, 1998 at 08:14:30, Pat King wrote: > >On September 22, 1998 at 05:52:43, Roberto Waldteufel wrote: > >> Maybe there should also be an "age" >>entry in the tables based on the move-number at the root of the search when the >>move was stored (or maybe last used)? >> >>Best wishes, >>Roberto I already do this, so that I can overwrite old stuff when needed, without having to clear the table to make room for the next search... > >How about if you store the ply the position was encountered. When a collision >occurs, the new position replaces the old if... > > 1) old.ply < current.ply (old position now history) > 2) new.ply < old.ply (new position nearer root) > 3) new.ply = old.ply and new.depth > old.depth (new position has higher >quality score) > >Right now, I'm using always replace, but I haven't been terribly pleased with my >results, and the above seems to simply incorporate the ideas discussed in this >thread. > >Pat
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