Author: Robert Hyatt
Date: 20:58:55 03/30/04
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On March 30, 2004 at 14:35:45, Dieter Buerssner wrote: >On March 30, 2004 at 14:16:05, Robert Hyatt wrote: > >>All the PVs are draws for sure. Whether there is a longer mate that avoids that >>is not likely as there were no pawns to push the 50-move counter away... > >There is still the theoretical possibility, that you can force to capture >earlier and thereby the mate would become longer. Perhaps it won't apply to >these concrete positions, but it will be a valid argument in general. For >example, there are positions in KBBKN, that can be won, but minimizing mate >distance without concern to of the 50 moves rule will only draw. > >Ken Thompson had an online database with distance to conversion TBs (including >many pawnless 6-piece TBs). Unfortunately, last I tried, it was not available >anymore. It at least could give a clue. When the (pawnless) pos has DTC > 50, it >is of course futile, to search for something. When DTC <= 50, one could hope for >a real win. > >Regards, >Dieter The main point is winning. I don't believe a human can draw any of those positions Guy gave. A mistake here and there turns mate in 200 to mate in 20 instantly... Against a computer with the tables it would be hopeless, of course.
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