Logic Masters Deutschland e.V.

It's a cat.

• Normal sudoku rules apply; Place the digits 1 to 9 once each in every row, column and 3x3 box
• Diagonals: Digits may not repeat along either main diagonal, marked with a blue line
• Modular Line: Any set of 3 digits along a teal modular line must include one digit from each modulo 3 set, i.e. one digit from (1, 4, 7), one digit from (2, 5, 8), and one digit from (3, 6, 9)
• Kropki: Black dots separate digits where one is double the other. White dots separate digits that are consecutive. Not all dots are necessarily given

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