Author: fca
Date: 05:16:49 08/11/98
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On August 10, 1998 at 20:48:24, Jouni Uski wrote: >wKh2,Ba5,Ra2,Pg2,h3/bKh4,Qc8,Pg6,h5 >white to move >solution Rc2!! > >In my P90 Fritz5, Rebel9, Nimzo98 and CM5000 cannot find solution in 30 >minutes, but there's exception: Mchess 7 finds it in 8'20'' On a humble Pentium 166, i.e. barely 1/2 a cpu ( :-) ), no MMX, Chess Genius 5 DOS finds Rc2 in just over 2 minutes, with an evaluation of over +3. This is markedly better than any other result posted here so far ... and I did remember to turn permanent brain off before inputting the position, as I am well aware of CG tricks ;-) The reason why Rc2 is hard to find is because programs are not designed for positions considered to be freakish (basically, as Bruce has posted) by their programmers. How "weird" such positions actually are, however, I do not know. How can we find out? Maybe programmers slightly overestimate the rarity of such gems, because their programs do not find them quickly? Say more distant ones - where maybe White can make a small sacrifice to reach the: w Kh2,Ba5,Ra2,g2,h3 / b Kh4,Qc8,g6,h5 position? Maybe cause and effect are gwtting slightly blurred here? Kind regards fca
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