Author: Ed Schröder
Date: 00:09:31 07/22/04
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On July 21, 2004 at 16:55:07, Eric Oldre wrote: >lets say you are searching a position with iterative deepening. >at depths 3,4,5 it finds a best move of Qd3. then at depth 6 >the best move changes to c4. > >When you start searching to depth 7, you clearly would want the >first move you search to be c4, and this shouldn't be a problem >if your transposition tables are working right. Since the best >move should be stored in it. > >however, a good move to try 2nd would be Qd3, but your transposition >tables aren't going to let you know that, at least not in the implementations >that I have normally heard about. >I was thinking that one way to overcome this would be to keep 2 "best" moves >in the trans table. Tried it long time ago. I got a slow down of several percent. Beats me why that is as the idea looks so natural. My best, Ed
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