Author: leonid
Date: 13:05:36 05/04/01
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On May 04, 2001 at 15:38:23, Angrim wrote: >On May 04, 2001 at 10:26:02, leonid wrote: > >>Hello! >> >>Had bad lack this midnight when one call came from my work. It took me 20 >>minutes to do it but I went to my bed only at 2 o'clock. One good result from >>broken sleep was this position that you can try to solve. It probably will >>demand one sleepless night from your program, if you will insist on shortest >>mate. >> >>[D]RnqkqnR1/qBNbNBq1/QqQqQqQ1/BrQqQrB1/3q4/8/3Q4/3K4 w- - >> >>Please indicate your result. >> >>Thanks, >>Leonid. > >this one IS tough, wonder if having endgame tables would help a lot? Never! >I'll leave my proof number searcher running while I'm at work, maybe it >will find an answer in a few hours.. currently its obsessing over Qxd7. Everything depend on each program branching factor. Two professional that I tried until now (they are not specialized in solving mate nut never hung on you) were slow. The every next program could have very good branching factor for this position. I had the chance to see very good on mine, mainly for brute force. Selective was slow. It took this in 10 min 42 sec. Celeron 600Mhz. No hash. Leonid. >proven that lots of the other moves lose already though. >proved that 26 of the other moves lose after 10 minutes search.. > >Angrim
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