Logic Masters Deutschland e.V.

Normal Sudoku rules apply.
Place the digits 1–9 so that each digit appears exactly once in every row, column and 3×3 box.

Additional rules:

Thermometers: Digits increase strictly from the bulb to the tip.

Arrows: The digit in a circle equals the sum of the digits along its arrow.

Killer Cages: Digits in a cage sum to the given total. Digits may not repeat within a cage.

Renban Line: Digits on a renban line form a set of consecutive digits in any order.

German Whispers Line: Adjacent digits on a green line differ by at least 5.

XV: Cells separated by V sum to 5. Cells separated by X sum to 10. Not all possible Xs and Vs are given.

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