Author: Dann Corbit
Date: 12:29:35 06/10/04
Go up one level in this thread
On June 10, 2004 at 15:15:03, F. Huber wrote: >On June 10, 2004 at 15:05:07, Dann Corbit wrote: > >>On June 10, 2004 at 15:04:37, Dann Corbit wrote: >> >>>On June 10, 2004 at 14:36:04, F. Huber wrote: >>> >>>>On June 10, 2004 at 12:52:23, Dann Corbit wrote: >>>> >>>>>On June 10, 2004 at 09:22:10, Daniel Jackson wrote: >>>>> >>>>>>http://www.talkchess.com/forums/1/message.html?369410 >>>>>>CM9K needs far too much time, and it is a mate in 15 rather than 17. My mistake. >>>>>> >>>>>>S8 mate in 18, 13 min >>>>>>http://www.talkchess.com/forums/1/message.html?369444 >>>>>> >>>>>>Shredder gets it wrong. >>>>> >>>>>As long as it finds a mate, the solution is identical, from a game theoretical >>>>>standpoint. >>>>> >>>>>It is a very frequent occurence for a chess playing engine to find a different >>>>>and longer mate than a chess mate finder. >>>>> >>>>>The solution is not wrong. In fact, it is optimal. It just is not the shortest >>>>>path to the goal. >>>> >>>>Sorry Dann, but here I can´t agree! >>>> >>>>Ok, a ´longer´ mate is of course _not_ wrong (as long as it is forced), >>>>but by no means I would say that such a mate is ´optimal´! >>>>I think, that really _every_ chessplayer here would only call the >>>>´shortest´ solution an ´optimal mate´. >>> >>>The outcome of the game does not change. Therefore, the choice is optimal. >>>A win is a win. The shorter win may be prettier. But it is not better. >> >>Perhaps this is more clear: >>The game theoretic result is unchanged. > >You are right, if you are only interested in the result of a game (=win), >but of course not, if you want to find the optimum mate. > >But nevertheless I´m sure, that even _you_ would prefer a win in 15 moves >instead of 18 moves!? ;-) It depends on which one is prettiest. Sometimes, the shorter mates have something less elegant in them. If it is a contest and my program is playing, I don't care which it is. If I want to admire a game, I like the most breathtaking move, whatever that may be.
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