Author: Rafael Andrist
Date: 13:51:52 12/27/01
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On December 27, 2001 at 15:47:33, Uri Blass wrote: >7 plies to stop the qsearch is not a holy number and >I do not know the correct number but it is clear to me that >not stopping the qsearch at some point is illogical and there is a position when >Fritz needed an hour to find mate in 1 because of qsearch >explosion. A possible solution which is theoretically correct but a bit tricky to implement: stop qsearch after x plys and set an "incomplete" flag. If you recognize during search that the "incomplete" node can still change the value of the tree, do the qsearch again. (I don't do it yet.) > Limiting qsearch is, in my opinion, same as making >>it almost useless. > > >In most of the qsearches there are not lines of more >than 7 plies so I do not see why limiting the qsearch to >7 plies make it almost useless. if limiting the qsearch doesn't change much, why limit it and maybe lose critical information? Rafael B. Andrist
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