Consider a 5 by 5 Chess Board. Is it possible to place
5 Queens on the board such that three pawns can safely
be placed on the board? (aka, by carefully choosing where
to place the 5 queens, can you arrange it so that there
are 3 squares on the board that none of the queens can
attack)
(From - http://www.princeton.edu/~sjmiller/riddles/riddles.html)
Since any space a queen attacks can also be attacked by a queen, an easier way to look at the problem would be to place 3 queens and leave 5 unattacked spaces.
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Posted by DJ
on 2003-03-01 10:15:17 |
Another viewpoint
