Logic Masters Deutschland e.V.

Normal sudoku rules apply.

Killer Cages - Digits in a cage do not repeat and must sum to the number in the top-left corner of the cage.

Arrows - Digits along an arrow must sum to the number in the attached circle.

Skyscrapers - Digits outside the grid indicate how many cells are visible from the direction of the clue, with higher digits blocking the view of lower digits.

Note: In this puzzle, each skyscraper clue is also an arrow sum.

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