From the Foxger’s Den #72: Cross the Streams
or solve online (using our beta test of Penpa-Edit tools)
Theme: Logical
Rules: Standard Cross the Streams rules.
Answer String: Enter the length in cells of each of the black segments from top to bottom for the marked columns, going in order from A to B to C to D and separating each entry with a comma.
Time Standards (highlight to view): Grandmaster = 2:30, Master = 3:45, Expert = 7:30
Solution: PDF