Logic Masters Deutschland e.V.

Rules:

• Divide the grid into two orthogonally connected areas, one of which follows Surf rules and the other which follows Hasu No Mura rules.
• Surf: Shade some cells such that each connected group of shaded cells is of one of the shapes given outside the grid: A line segment represents a one-wide straight path of at least two cells, and a node represents a turn, branch, or endpoint. Rotations and reflections are permitted. Clues cannot be shaded, and every orthogonally connected area of unshaded cells contains exactly one clue, the value of which represents the size of the area.
• Hasu No Mura: Shade some cells so that all shaded cells form one orthogonally connected area and no 2x2 region is entirely shaded. Clues cannot be shaded and indicate the sum of the areas of the unshaded regions using the (up to 4) cells diagonally adjacent to the clue. (This may include the region the clue is in, and if a region uses multiple diagonal neighbours, it is only counted once.)

Penpa link: Click Here

Solution code: For each row of the grid, the number of shaded cells in that row.

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