Henry Ernest Dudeney/Puzzles and Curious Problems/261 - The Twenty-Two Bridges

by : $261$

 * The Twenty-Two Bridges
 * We have a rough map of a district with an elaborate system of irrigation,
 * as the various waterways and numerous bridges will show.


 * Dudeney-Puzzles-and-Curious-Problems-261.png


 * A man set out from one of the lettered departments to pay a visit to a friend living in a different department.
 * For the purpose of pedestrian exercise he crossed every one of the bridges once, and once only.
 * The puzzle is to show in which two departments their houses are situated.


 * It is exceedingly easy if you give it a few moments' thought.
 * You must not go outside the borders of the diagram.