Outside Nurikabe

This is already the fourth one of these I’ve made, which I consider a feat given how many of my puzzles tend to be one-shot variations.

Outside Clue Nurikabe 4

Rules:

  • Unlike in regular Nurikabe, the clue numbers have been placed outside the grid.
  • A clue will appear in the first unshaded cell in its row/column, counting from the clue’s direction.
  • Standard Nurikabe rules then apply:
    • Shade some cells to form a continuous wall that contains no 2×2 squares of shaded cells.
    • The clue numbers hint at connected groups of unshaded cells.
    • Every group has exactly one clue, which tells the group’s size.

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