Author/Opus: This is the 1st puzzle from guest contributor Jamie Hargrove.
Rules: Standard Nurikabe rules.
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. Separate each row’s entry from the next with a comma.
Time Standards (highlight to view): Grandmaster = 3:30, Master = 4:15, Expert = 8:30