A Magnum Opus
ROUNDABOUTS puzzle consists of a square or rectangular array of squares in which some of the
squares contain a circular roundabout. The puzzle is solved by drawing a path which passes through the center of every square without
crossing over itself until it returns to the square in which it started. The path must change direction at every roundabout, and it must
also change direction exactly once in the intervening squares between ROUNDABOUTS. There is a single unique solution which can be found
without recourse to guessing.
Solving the puzzle is a point and click mouse operation. A single click near the boundary between two cells will draw a path segment between
the centers of the two cells. A second click can be used to remove the path segment if you believe you have made a mistake.