Author: Robert Hyatt
Date: 14:24:27 02/06/03
Go up one level in this thread
On February 06, 2003 at 14:54:57, Marc Bourzutschky wrote: >On February 06, 2003 at 14:42:38, Robert Hyatt wrote: > >>On February 06, 2003 at 13:24:51, Dieter Buerssner wrote: >> >>>On February 06, 2003 at 13:14:28, Robert Hyatt wrote: >>> >>>>I hope that was my point. :) (BTW, I think the king is limited to 1/4 of the >>>>board, >>>>not 1/2...) Because you can do vertical/horizontal reflections to put the white >>>>king >>>>in the a1-a4-d4-d1-a1 corner of the board...) >>> >>>I cannot see, how such a rectangle would be enough. >> >>I am not quite sure what you mean. You can limit the white king to a single >>triangle of 10 squares with no pawns, because then you can reflect the board >>along >>three different axis points. But when you have pawns, you still ought to be >>able >>to limit the king to 1/4 of the board, as vertical/horizontal reflections do not >>make >>pawns move sideways, as they would when you try to reflect in third axis. >> >>It is just the first cut at reducing the overall size... >> >> > >...but pawns can't move backwards either, eliminating another axis. A white >pawn on e7 is quite different from a white pawn on e2 :) You're obviously right of course. :) > >>> >>>>This means more work as now you have to make each move, and then probe. >>> >>>This can be (and is in other cases) implemented in the probing code of Eugene. A >>> >>>Regards, >>>Dieter
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