Author: Tony Werten
Date: 03:36:25 02/01/05
Go up one level in this thread
On January 31, 2005 at 19:49:20, Mark Rawlings wrote: >On January 31, 2005 at 17:34:52, Vincent Diepeveen wrote: > >>On January 30, 2005 at 12:53:11, Helmut Conrady wrote: >> >>>On January 30, 2005 at 10:56:55, Mark Rawlings wrote: >>> >>>>Very interesting! >>>> >>>>Is the KRNKNN mate in 262 still the longest tablebase mate?? >> >>Possibly not. If you simply have some 100 move sequence that exchanges to other >>5 or 6 men, you already are having a far longer mate. > >There are longer mates, of course, but they haven't been constructed in >tablebases yet. Also, the DTM in the existing 6-piece tablebases already take >into account the number of moves after conversion to the 5-piece tablebases, >etc. A 6 piece tablebase with pawns that needs an underpromotion to win has a good chance to break the record I guess. Tony > >I remember seeing one of these long tablebase mates where someone added a piece >or two with some forcing moves to create an even longer mate. This would be >pretty tough to do for more than a few moves, though! > >Mark > > >> >>I don't think we will have exact statistics on it though. DTM won't hold for >>long. It eats too much harddisk space for 7 men when compared to win/draw/loss. >> >>Vincent >> >>>>Mark >>> >>>Yes these 523 plies are the longest DTM so far. I expect this record holds in >>>the 6 piece endings. >> >>KNNNNKQ is a 7 man egtb. >> >>>Helmut
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