SOLVING A ROUNDABOUTS PUZZLE

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.

Menu Functions
  • File Menu
    • Load a Puzzle
      Use this option to choose the puzzle you want to solve from the pool of ROUNDABOUTS puzzles currently available on your computer.

    • Quit Solving
      Returns you to either the ROUNDABOUTS Build screen or the Magnum Opus opening screen.

  • View Menu
    • Display Options
      This leads you to a dialog box in which you can change the colors of various elements within the puzzle, and control the fonts which will be used for the puzzle's text components. You can also decide if printing of the puzzle will be done in black and white or in color.

  • Tasks Menu
      This option will undo in reverse order, each of the operations you have done on the puzzle.

    • Reveal Errors
      If you think you may have made errors, this option will show you where they are by highlighting them for a period of 1.5 seconds.

    • Reveal Solution
      The entire solution can be seen by selecting this option.

    • Begin Again
      You can restart the entire solution process at any time by selecting this option.

  • Help Menu
    • Roundabouts Help
      Displays the Help screen which you are now reading.