Author: Ricardo Gibert
Date: 13:31:54 10/18/00
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On October 18, 2000 at 15:57:10, Uri Blass wrote: >On October 18, 2000 at 15:52:09, Ricardo Gibert wrote: > >>On October 18, 2000 at 14:14:20, Uri Blass wrote: >> >>>On October 18, 2000 at 12:34:42, Ricardo Gibert wrote: >>> >>><snipped> >>>>The algorithm to determine whether this type of position is drawn is quite >>>>simple. With the h-pawn, Black draws if the K can get into the four corner >>>>squares g7,g8,h7,h8. Otherwise, the outcome is not assured. Note, it is not >>>>enough for the King to get in front of the pawn as the following position >>>>illustrates: >>> >>>I can give another rule: >>>Blacks draw if it is black to move and the distance between the black king and >>>the corner in king moves is smaller than the ditance between the corner and the >>>white pieces except the bishop(white king in king moves and white pawn in pawn >>>moves) >>> >>>If it is white to move then use distance-1 instead of distance for white. >>> >>>Uri >> >>I like your rule. It's interesting, but it needs to be amended somewhat: >> >>[D]4B3/8/8/8/8/2k5/7P/K7 b - - 0 0 > >This position is not a draw by my rule. >The distance of the white pawn to the corner in pawn moves is equal(and not >smaller) to the distance of the black king to the corner in king moves. Yep, I goofed. > >> >>as you can see, your rule is a little dangerous. There may be other examples, >>but this is what I came up with in a about a minute. Still your rule is >>promising. >> >>There are some positions your rule does not give as drawn, but "my" rule does. >>The reverse is also true of course, so maybe the rules should be combined? > >I agree that the rules can be combined. > >Uri
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