Author: Uri Blass
Date: 07:39:16 11/22/02
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On November 22, 2002 at 10:30:34, Robert Hyatt wrote: >On November 22, 2002 at 07:21:13, Uri Blass wrote: > >>On November 22, 2002 at 05:50:09, Omid David Tabibi wrote: >> >>>Vincent, >>> >>>You haven't read the article yet. READ IT. I have described everything I have >>>done quite clearly, and have presented the results. All the node counts are also >>>available at my website. >>> >>>Regarding your checkmate question: except for the "Mate in 4" and "Mate in 5" >>>positions which I was interested to know only if the checkmating was found or >>>not, in all other test positions (ECM, WCS, Neishtadt) the search was conducted >>>to the mentioned depth even if a checkmate is found at eariler plies. This was >>>done in order to ensure that the fixed depth results are comparable in terms of >>>tree size. >>> >>>Omid. >> >>What do you search after finding a mate? >>Does genesis search for a shorter mate and in this case does it knows not to >>search when it get ply that means that no shorter mate can be found? >> >>Movei simply stop searching after finishing an iteration with mate score. >> >>Uri > > >I would suspect he does like most everyone else. Search until you reach depth >2*N-1 where N is the mate depth as in mate in 9. I need to search 17 plies to >verify that no shorter mate than mate in 9 exists... I do not know what most do but I do not care after finding a mate to find the shorter mate. The result is the same even if I do not find the shortest mate. I care only to finish the iteration. Uri
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