Author: J. Wesley Cleveland
Date: 18:30:30 03/22/02
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On March 22, 2002 at 04:49:40, Aaron Tay wrote: >On March 21, 2002 at 15:23:38, Dann Corbit wrote: > >>On March 21, 2002 at 15:13:12, Steve wrote: >> >>>Thanks to all of you for your responses. Is it possible to have programs >>>recognize "fortresses" by instructing them to decide, when the evaluation has >>>remained static throughout a certain number of ply, that the position must be a >>>draw? > >It seems rather pointless to add this though in cases where you already drifted >into a drawn position. I suppose for some programs, you can see some of the >scores dropping, as the 50 move rule starts to come closer, those it's already >useless in cases when it's drawn.. > > >>Hossa has done some work on detecting walls. I think that fortress detection is >>a good idea too. The problem is that I don't know of a single algorithm to >>detect such a thing. A lot of times, we simply recognize a fortress. But the >>question is "How did our brains arrive at the 'stalemate' conclusion?" > > >[D]8/5K2/8/8/5N2/4p3/3qN2k/8 b - - > >Easier to solve i think, the human sees that the queen alone cannot mate. And >the king cannot move. Any attempt to sac the queen draws.. > Not too easy, e.g. this position is lost for white [D]5K2/8/8/8/5N2/4p3/3qN2k/8 b - -
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