Tapa (Loop) by Thomas Snyder
or solve online (using our beta test of Penpa-Edit tools; use tab to shift between shading mode and the composite Yajilin mode where left click marks cells, right click marks dots in cells or X’s on edges, left click+drag draws lines.)
Theme: 5&6
Author/Opus: This is the 303rd puzzle from Thomas Snyder, aka Dr. Sudoku.
Rules: Variation of Tapa. All the cells in the Tapa must form a single closed loop without any crossings or intersections.
See also this example:
Answer String: Enter the length in cells of each of the shaded segments (Not the loop segments!) from left to right for the marked rows, starting at the top. Separate each row’s entry from the next with a comma.
Time Standards (highlight to view): Grandmaster = 1:45, Master = 3:00, Expert = 6:00
Solution: PDF
Note: Follow this link for other Tapa variations and this link for classic Tapa. If you are new to this puzzle type, here are our easiest Tapa puzzles to get started on. More Tapa puzzles can be found in The Art of Puzzles and in Tapa and Variations, both by Serkan Yürekli.
I love how this rings the changes on the theme. Also gave me an important lemma for Tapa Loop.