Author: Robert Hyatt
Date: 08:24:26 01/30/06
Go up one level in this thread
On January 30, 2006 at 10:29:39, chandler yergin wrote: >On January 30, 2006 at 10:18:03, K. Burcham wrote: > >> >> >> >> [D] 2Q5/1p2kb2/1q3p1P/2p2P2/3pP3/4b2R/8/3B3K b - - 0 1 > >New game, >[D]2Q5/1p2kb2/1q3p1P/2p2P2/3pP3/4b2R/8/3B3K b - - 0 1 > >Analysis by Rybka 1.0 Beta 32-bit: > >1...Qb5 2.Qc7+ >= (0.00) Depth: 12 00:00:16 637kN >(, 30.01.2006) > >How much time did Rybka have to make it's move in the game? It doesn't matter. His analysis shows that the scores for the depths were different for the same ply. This is commonly caused by transposition table scores being re-used. And there is absolutely nothing wrong with doing so. Sometimes it will produce a worse result, but more often it produces a _better_ result. Just like sometimes searching deeper will cause a program to play a worse move, although in general going deeper produces stronger moves. His point was that comparing scores ply for ply shows a difference, which it did.
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