Author: blass uri
Date: 06:09:59 07/20/00
Go up one level in this thread
On July 20, 2000 at 08:19:56, Robert Hyatt wrote: >On July 20, 2000 at 02:37:07, blass uri wrote: > >>On July 19, 2000 at 23:42:46, Robert Hyatt wrote: >> >>>On July 18, 2000 at 14:29:53, blass uri wrote: >>> >>>>On July 18, 2000 at 14:27:58, stuart taylor wrote: >>>> >>>>>On July 18, 2000 at 12:17:57, blass uri wrote: >>>>> >>>>>>On July 18, 2000 at 12:10:57, stuart taylor wrote: >>>>>> >>>>>>>Let me clarify. Of course computers always look for the best move in attack, and >>>>>>>also play the move they evaluate as as best. But when they see the evaluation >>>>>>>going down, they will look perhaps a whole extra ply deeper in search of finding >>>>>>>a way to bring the evaluation back up again. >>>>>>> But if they see their evaluation going up, they do that move, sometimes very >>>>>>>quickly, atleast they don't grind away labouriously trying to find something >>>>>>>even better, even if the first "good move" is not all that good relatively. >>>>>> >>>>>>My knowledge is that Junior almost always finish the iteration of moves. >>>>>> >>>>>>If it see the evaluation goes up it will usually not play without checking all >>>>>>the other moves in the same iteration. >>>>>> >>>>>>Uri >>>>> >>>>>Hiarcs too, usually. But if it is losing, it just goes on and on thinking, for >>>>>very long periods, letting its clock tick till quite near the end. >>>>> If that would help it salvage the position, it would be time well spent. >>>> >>>>Hiarcs is the only program that I know that does it. >>>> >>>>Uri >>> >>>Crafty will do it also... >> >>I meant to the fact that hiarcs does not finish the iteration of moves when it >>fails low but does another iteration. >> > > >That has _got_ to be wrong. Why on earth would anyone write a search that >would fail low, and then start a new iteration (that it might not have a chance >of searching even the first move on) without first checking all of the remaining >moves at this iteration to see if one will bring the score back up? I see that I explained myself wrong. I meant to the fact that hiarcs does not *only* finish the iteration of moves when it fails low but does another iteration. I did not put the words only and this is the reason for the misynderstanding. Uri
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