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)
Theme: Four T’s
Author/Opus: This is the 196th 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: 3.5 stars
Time Standards (highlight to view): Grandmaster = 4:30, Master = 8:00, Expert = 16:00