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Author/Opus: This is the 25th puzzle from our contributing puzzlemaster Prasanna Seshadri.
Answer String: Enter the length in cells of each of the black segments (the unnumbered, connected “ocean”) 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 = 0:45, Master = 1:15, Expert = 2:30