Logic Masters Deutschland e.V.

RULES:

• Cave: Shade some cells such that all orthogonally connected groups of shaded cells (the wall) touch the edge of the grid, and all unshaded cells (the cave) are orthogonally connected.

• Suguru: Each orthogonally connected group of shaded (wall) cells contains the digits 1-N (where N is the size of the group). Suguru digits may not repeat in a row, column, or shaded group.

• Fillomino: Divide unshaded cells (the cave) into polyominoes and fill each cell with a digit equal to the size of its polyomino. Polyominoes of the same size may not share an edge.

• (Clarification: The use of the word “digit” in all contexts above indicates all numbers in the puzzle are 1-9)

• Fillomino/Suguru Borders: A Fillomino Polyomino may not border a Suguru digit with the same value.

• Circle Clues: An unshaded circled clue indicates the total number of unshaded cells seen in the four orthogonal directions, including the clue cell. A shaded circle clue indicates the size of the shaded region.



Links to Solve Shiny:
Penpa+
SudokuPad