Author: Marc Bourzutschky
Date: 17:55:40 01/07/03
Go up one level in this thread
On January 07, 2003 at 20:48:19, Ricardo Gibert wrote: >On January 07, 2003 at 20:40:11, Marc Bourzutschky wrote: > >>The 50-move rule is irrelevant to endgame studies, which is what this is about. > > >I seriously doubt if anyone is ever going to expend the effort to actually >understand the ending you gave. > >BTW, since the analysis you gave is based on a DTM (=Distance To Mate) EGTB, we >don't really know if it is drawn due to the 50-move rule or not. > Since many moves in the solution are unique, it is extremely unlikely that a DTZ (=Distance to zero counter) will shave off a significant number of moves, certainly not the over 100 required to get within the 50-move rule. > >> >>On January 07, 2003 at 20:29:07, Ricardo Gibert wrote: >> >>>On January 07, 2003 at 20:14:11, Edward Seid wrote: >>> >>>>On January 07, 2003 at 19:45:04, Ricardo Gibert wrote: >>>> >>>>>What's subtle about it? Black draws easily thanks to the 50-move rule rendering >>>>>most of this analysis as irrelevant. >>>> >>>>The 50-move rule was created by tournament directors and organizers to address >>>>practical tournament play, before computer use was widespread. After computer >>>>analysis proved that some endings could still be won but would take longer than >>>>50-moves, certain special case endings were allowed to extend beyond 50 moves in >>>>tournament play. >>> >>> >>>All the special cases were eliminated in the lastest version of the 50 move >>>rule. You must mate within 50 moves now or it is a draw. An exception is only >>>made when the organizer declares before the event which type of positions are >>>excepted, but nobody ever does this. Such positions are too rare to bother with. >>> >>> >>>>The current analysis shows that in the case of KRRPKQ, with perfect play from >>>>both sides, that the superior side could take MUCH LONGER than 50 moves. >>>> >>>>So I disagree with you when you say that a forced winning line is irrelevant >>>>because of a rule that humans created to expedite human tournament play.
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