Author: Heiner Marxen
Date: 12:02:33 03/29/02
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On March 29, 2002 at 04:18:22, Mike Hood wrote: >On March 23, 2002 at 08:59:03, leonid wrote: > >>[D]q1q1kq1q/3bb3/Q1RqqR1Q/1NBrrBN1/3q4/Qn4nQ/1P2P1P1/q1Q1KQ1q w - - >> >>Please indicate your result. >> >>Thanks, >>Leonid. > >When I try to solve this mate with Fritz 7, or even just look for the best move, >nothing happens. The program just sits there. It doesn't make a difference what >engine I use. Does anyone else have this problem? Most probably you observe a q-search explosion, i.e. even the smallest search at the leaves has to do a q-search, following more or less all possible captures. In this constructed position there are possible many captures and re-captures, and checks etc. It is not easy to get to a quiet position. Most programs do not care very much about this problem, since such a capture loaden position just would not occur in normal game play. But some programs can handle it quite well. A problem solver does not have this problem, because it does not do any q-search ;-) Cheers, Heiner
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