Following up the previous Cave, here’s a tougher Nurimisaki. Once you’re comfortable with the type, it might not qualify as “hard” anymore, but if not it will sure feel like it.
That puzzle type switched back to being a shading-first puzzle; I had previously made it an “unshading-first” puzzle for autocheck, but I’ve since changed autocheck for (some / most) shading puzzles to require all cells to be decided before triggering, so the major downside of shading-first is gone.
Maybe Puzzles 