Author: blass uri
Date: 15:04:49 01/21/99
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On January 21, 1999 at 13:20:54, Robert Hyatt wrote: >On January 20, 1999 at 17:06:59, blass uri wrote: > >> >>I believe that all of the moves are right because I read that darkthought found >>all of them, but there are some cases when there is more than one practical >>solution. >>I believe that Junior5's move Nf6+ in number 29 is also winning(The solution >>Nxh6 is the simplest). >> > > >the fact that Dark Thought (or any other program) gets the suggested best move >doesn't convince me those are right best moves. IE I could easily pick a set >of 100 endgame positions that Crafty solves perfectly, without being sure that >the 'best move' is "the only best move that doesn't turn the game from a win to >a draw or from a draw to a loss." > >That's not to say that Dark Thought is "bad" or that the key moves in the >positions are "wrong". But I went thru a lot of this in the various suites >I run. IE even in WAC Crafty found a couple of 'cooks' where it was thought >that in a couple of positions only one move would win. But occasionally there >is a 'waiting' move that doesn't give up the win, but it might be hard to see at >first. > >That's why I asked my question... for each best move in the suite is it clear >that the best move is really the only move to play? Or is it just slightly >better? etc... It is not the only move to play in all the cases. There are at least 3 cases when there is more than one possible solution. Uri
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