or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode and the linex mode where left click+drag draws lines and right click marks X’s)
Theme: Too Easy
Author/Opus: This is the 20th puzzle from our contributing puzzlemaster Tom Collyer.
Answer String: Enter the length in cells of each of the cave segments from left to right for the marked rows, starting at the top. Separate each row’s entry with a comma.
Time Standards (highlight to view): Grandmaster = 0:55, Master = 1:20, Expert = 2:40