Henry Ernest Dudeney/Puzzles and Curious Problems/207 - Six Straight Fences

by : $207$

 * Six Straight Fences
 * A man had a small plantation of $36$ trees, planted in the form of a square.
 * Some of these died, and had to be cut down in the positions indicated by crosses in the diagram.


 * Dudeney-Puzzles-and-Curious-Problems-207.png


 * How is it possible to put up $6$ straight fences across the field,
 * so that every one of the remaining $20$ trees shall be in a separate enclosure?


 * As a matter of fact, $22$ trees might be so enclosed by $6$ straight fences if their positions were a little more accommodating,
 * but we have to deal with the trees as they stand in regular formation, which makes all the difference.