- Start by drawing walls between adjacent squares containing dots.
- Continue by drawing walls rotationally symmetric to the ones drawn before.
- The outer frame of the puzzle is also considered a wall.
- Paint each completed block according to the color of the dot it contains.
- Every new wall you draw might help in a next step.
- Determine which squares belong to which dots. If a square belongs to more than one dot look for another area to proceed.
- Never guess! Draw each wall only after you are sure it is unique.
Note: There is only one unique solution for each puzzle.
When solving on paper
- Use a soft erasable pencil and a high quality eraser.
- Draw walls on the dotted gridlines and paint the blocks when completed.
- Experienced solvers can paint with markers for outstanding results.
When playing on a computer
- Use Preferences options in toolbar for a better personal playing experience.
- Use the X marks liberally to show which squares belong to which dots. You can easily remove all of them anytime with the toolbar button.