or solve online (using our beta test of Penpa-Edit tools)
Theme: Symmetry and Logic
Author/Opus: This is the 52nd puzzle from our contributing puzzlemaster Prasanna Seshadri.
Rules: Standard LITS rules. Also, the letters outside the grid indicate the first tetromino encountered in the corresponding direction. Or see this:
(Example by Chris Green, a patron who requested this puzzle style.)
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 = 2:30, Master = 3:30, Expert = 7:00