Objective: Draw a single loop along grid lines so each numbered cell has exactly that many edges used.
Controls: Click edges to toggle. Use mark mode (βοΈ) for pencil marks (X). Press Check to validate.
Rules: Each number indicates how many of its four sides are part of the loop. The loop is single, closed, non-branching.
Create a single continuous loop based on number clues. Numbers indicate how many lines surround each cell. Deductive puzzle that builds a satisfying loop pattern.