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Place each of the twelve pentominoes into the grid once, with rotations and reflections allowed. No two pentominoes can overlap or be orthogonally adjacent, and all cells not occupied by the pentominoes must be orthogonally connected. The black circles indicate some cells that must be covered by pentominoes. Some numbers and arrows are also given in the grid. For all numbers that are not covered by a pentomino, the clues give the exact count of shaded cells in the given direction. A shaded over clue may or may not be true.

For automatic solution checking, all cells occupied by pentomino shapes (including clued cells) must be marked in black or a shade of gray. Note that if you are marking off the shape inventory below the puzzle, you should use any color but black or a shade of gray.
CTRL + z CTRL + y Erase elements that belongs to the selected mode Erase problem or solution grid

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