Author: Robert Hyatt
Date: 13:09:23 06/04/02
Go up one level in this thread
On June 04, 2002 at 14:25:51, Helmut Conrady wrote: >On June 04, 2002 at 12:56:05, Robert Hyatt wrote: > >>On June 04, 2002 at 08:43:27, Helmut Conrady wrote: >> >>>On June 03, 2002 at 20:02:51, GuyHaworth wrote: >>> >>>> >>>>At http://www.chessbase.com/newsdetail.asp?newsid=339 >>>> >>>>there is a report that in the 7th Round of the 2nd CSVN Computer chess >>>>tournament (Leiden), 'mate in 64' was announced against Morphy. >>>> >>>>The question was also asked: "is this a record?" to which we might add.... >>>> >>>>a) in tournaments, and/or >>>>b) in all computer-computer games >>>> >>>>Examples of deeper forced win announcements welcome. I believe KNNKP has >>>>occured ... and maybe KQPKQ has occured. >>>> >>>>g >>> >>>The longest mate in a human otb-play I know arose in Landau-Abrahams, >>>Bournemouth 1939, with a # in 142 in this position: >>> >>>[D]6k1/5R2/K7/1n1nN3/8/8/8/8 b - - 0 78 >>> >>>Helmut >> >> >>I think he was looking for "the longest _announced_ mate"... > >Of course. But I thought this would be interesting, too... >> >>I can't imagine any human saying "mate in 142" whether in a game, in >>analysis, or whatever... > > >BTW: The longest COMPOSED problem is a mate in 271!! > >Helmut I remember one such position. Where the king had to walk across the board, force the opponent to move a pawn, then back across the board to eat it, then back again. Not too hard for a human to see that. Probably impossible for the computer. But then again, I have also seen the computer announce a (non-EGTB) mate in 20 moves almost instantly, that no human could see given reasonable time. Much less 1 second.
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