Logic Masters Deutschland e.V.

1. Normal 9x9 sudoku rules apply:
   In every row, column and in every 3x3 box the digits from 1 to 9 have to appear atleast once.
2. Killer cages:
   Digits in cages must sum to the number in the top-left corner and cannot repeat.
3. Quadruples:
   Every digit in a circle has to be assigned to one of the surrounding cells.
4. Renban lines(PURPLE):
   Every renban lines contains a set of consecutive digits in any order, without repeats.
5. Ratio kropki:
   Cells with a black kropki between them are in a ratio of 1 to 2. Wich means you have the following posibilities, 1-2, 2-4, 4-8 and 3-6.
6. Dutch whisper lines(ORANGE):
   Two cells connected by a Dutch whisper line must have a difference of at least 4.

Sirxemic’s Sudokumaker Sven's Sudokupad

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