Cross the Streams by Mark Sweep
or solve online (using our beta test of Penpa-Edit tools)
Theme: Four Slices of Pi
Author/Opus: This is the 8th puzzle from guest contributor Mark Sweep.
Rules: Standard Cross the Streams rules.
Difficulty: 4.5 stars
Time Standards (highlight to view): Grandmaster = 6:30, Master = 15:00, Expert = 30:00
Solution: PDF and solving video.
Note: Follow this link for other Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on. More Cross the Streams can be found in these e-books in our store.