PDF

or solve online using our beta test of Penpa-Edit tools; use tab to alternate between a shading mode and a composite mode where left click + drag draws line segment and right click on cell edge adds an x.)

Theme: Logical

Author/Opus: This is the 11th puzzle from guest contributor Bryce Herdt.

Rules: Variation of Cross the Streams. Instead of the “no 2×2 shaded square” rule, in this hexagonal grid no 3 cells that share a point can be shaded. Also, the shaded region must be able to be split into tetrahexes to form a valid SLICY solution (meaning all tetrahexes are connected but no two tetrahexes sharing an edge are the same shape, including rotations and reflections).

Answer String: Enter the length in cells of each of the black segments from left to right for the marked rows, going in order from A to B to C to D and separating each entry with a comma.

Time Standards (highlight to view): Grandmaster = 5:30, Master = 8:15, Expert = 16:30.

Solution: PDF

Note: Follow this link for variations of Cross the Streams and this link for other classic Cross the Streams. If you are new to this puzzle type, here are our easiest Cross the Streams to get started on.