Henry Ernest Dudeney/Puzzles and Curious Problems/281 - A Match Puzzle

by : $281$

 * A Match Puzzle
 * The $16$ squares of a chessboard are enclosed by $16$ matches.
 * It is required to place an odd number of matches inside the square so as to enclose $4$ groups of $4$ squares each.


 * Dudeney-Puzzles-and-Curious-Problems-281.png


 * There are $4$ distinct ways to do this, up to reflection and rotation.