Author: Uri Blass
Date: 15:17:34 11/30/01
Go up one level in this thread
On November 30, 2001 at 17:30:52, Ed Schröder wrote: >On November 30, 2001 at 16:13:12, Uri Blass wrote: > >>On November 30, 2001 at 14:35:37, Christophe Theron wrote: >> >>>On November 30, 2001 at 05:16:46, Jouni Uski wrote: >>> >>>>... or actually not! Gandalf gains a lot rating points and Tiger loses. >>>> >>>>Jouni >>> >>> >>> >>>It is not surprising, because Chess Tiger has been given only partial tablebases >>>during this match. >>> >>>As pointed out somewhere else, because of this lack of TB some wins have been >>>turned into draws. >>> >>>It would have been better to not give any TBs to Tiger at all. I'm sure the >>>result would have been better. >>> >>>This result leaves a bitter taste. Thousands of hours of work (mine and the >>>hours spend by the SSDF testers on this match) spoiled by an inferior setup. >>> >>> >>> >>> Christophe >> >>I believe that other programs also used exactly the same tablebases. >> >>Uri > > >Not really, have a look at game 35 and you will notice the mate scores of >Gandalf which indicates the right TB's. So there were different conditions. > >Ed I believe that both sides use the krp vs kr and not the krq vs kr. The mate scores prove nothing because they can be result of the krp vs kr tablebases. it is also possible that gandalf used regular search and not only tablebases (Dieter explained that it is usually possible to find the best move without all the tablebases if you do not stop search when you find mate but continue to search for shorter mate and another option that is used by crafty is to stop using tablebases if the distance to mate does not go down) Uri
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