or solve online (using our beta test of Penpa-Edit tools in edgex mode where left click+drag draws lines and right click marks X’s)
Theme: Connected Logic
Author/Opus: This is the 1st puzzle from guest contributor Bobby Liu.
Rules: Standard Slitherlink rules. Also, there are four regions (in gray) in the two grids that are portals. All edges that touch any gray squares must match across grids (without rotation or reflection). For identical shapes, it is not known which positions are matched (for example, the ring in the upper left of the first puzzle could be in either the upper left or lower right of the second puzzle).
Answer String: Enter the length in cells of each of the internal loop segments following the arrows for the marked rows, starting at the top. Separate each row’s entry with a comma.
Time Standards (highlight to view): Grandmaster = 18:00, Master = 30:00, Expert = 1:00:00