Shade some cells so that shaded cell are not touching orthogonally, in the remaining unshaded cells each number occurs at most once in each row and all unshaded cells are orthogonally connected. (You get a row, if you start at the border of the grid and go through opposite sites of the quadriliteral cells.)
Solution code: Number of shaded cells in each of the five parts of the star, starting top middle and going clockwise.
on 8. August 2022, 20:45 by Vebby
Penpa+ link:
https://tinyurl.com/2m2c79bf
(Use shapes for shading)
on 30. August 2021, 16:55 by Realshaggy
Revised labels.
on 3. August 2021, 10:57 by Dugong
Wunderhübsch. Danke =)
on 24. December 2020, 21:01 by panthchesh
That was fun thanks for the puzzle! :)