Tapa (Transparent) by Prasanna Seshadri
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: Clue Symmetry and Logic (originally on 2016 Polish Puzzle Championship)
Author/Opus: This is the 123rd puzzle from our contributing puzzlemaster Prasanna Seshadri.
Rules: Variation of Tapa rules. The wall can travel through clue cells. Each clue now describes the entire 3×3 area the clue cell is in the middle of.
See also this example:
Answer String: Enter the length in cells of each of the shaded 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 = 6:00, Master = 12:00, Expert = 24:00
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.