or solve online (using our beta test of Penpa-Edit tools; use the tab key to alternate between shading and number entry modes)
Theme: Tire Tracks
Author/Opus: This is the 179th puzzle from our contributing puzzlemaster Grant Fikes.
Rules: Standard Nanro rules.
Answer String: Enter the length in cells of each of the segments labeled with numbers from left to right for the marked rows, starting at the top. Separate each row’s entry from the next with a comma.
Time Standards (highlight to view): Grandmaster = 2:45, Master = 3:30, Expert = 7:00