Author: Mark Rawlings
Date: 16:49:20 01/31/05
Go up one level in this thread
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. 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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