Author: Uri Blass
Date: 10:42:42 01/11/02
Go up one level in this thread
On January 11, 2002 at 13:41:00, Uri Blass wrote: >On January 11, 2002 at 13:15:26, David Rasmussen wrote: > >>On January 11, 2002 at 12:47:32, Matthias Gemuh wrote: >> >>> >>>How good is your move ordering? >>>Maybe that is the problem. >> >>In this position, 99%. I am pretty sure extensions are the problem, as my >>statistics show that I extend (in the longest line) to ply 62! >> >>But as far as I understand, my extensions are similar to everybody elses. So I >>don't understand the behavior. >> >>/David > >I do not understand > >simple rules of fail high should tell you that if the score is a mate score >[suppose the score is 9991 that means mate in 5 in my program (I should increase >this number because of the not practical case of 9 queens +2 rooks+2 bishops+2 >knights that can produce 103 score based on only material values)] > >It means that in the next search >I am going to use alpha=9991 because it is clear that the score cannot be lower >than 9991 and lines of 62 plies are going to be pruned after 10 plies. > >My program does not search after mate but when it will know to search after mate >then it is not going to search for lines that are too long. > >Uri Correction:My program does not continue to do more iterations after mate but it cares to finish the iteration even when a mate is found. Uri
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