Author: Tony Werten
Date: 01:08:41 10/24/00
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On October 23, 2000 at 08:05:26, Georg v. Zimmermann wrote: > >>>>- If I do not sort or sort move list by other criteria, could score and move >>>>results be different? >>> >>>No, you should get exactly the same scores and moves after finishing a certain >>>depth. The last move of the PV could change though in certain cases if I am >>>making no thinking mistake. >> >>First, the move can change. >>If move A and B have the same score, the one that is searched first will be >>shown as best move. If the sort changes B to be searched first that will be the >>best move. > >That would require the two moves to be considered equal at _every_ depth. I No, just at the root. This seems very obvious to me, maybe I'm overlooking something. >believe that is almost impossible. Show me an example of different first PV move >after changed move ordering ( fixed depth and no tricks like disabling HT or >searching only 2 ply, or mate in 1 position :-) ) to prove me wrong ! Take a position, search it with minimax till you have 2 exactly the same scores, restart thre search but put the second move first => different pv. ( I think one of us is missing a point here ) cheers, Tony
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