or solve online (using our beta test of Penpa-Edit tools; in default linex mode: left-click+drag draws line, right click marks X on edge)
Author/Opus: This is the 195th puzzle from our contributing puzzlemaster Murat Can Tonta.
Rules: Draw a single, non-intersecting loop in the grid that passes through all white cells. If a number clue is given in a bold region, that number indicates the total count of cells passed through by the largest connected loop section(s) in the region.
Also, see this example:
Difficulty: 2 stars
Time Standards (highlight to view): Grandmaster = 1:30, Master = 3:00, Expert = 6:00