or solve online (using our beta test of Penpa-Edit tools)
Author/Opus: This is the 9th puzzle from guest contributor Tapio Saarinen. You can find more of Tapio’s puzzles on his blog.
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 = 1:45, Master = 2:15, Expert = 4:30