Logic Masters Deutschland e.V.

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Rules:

Regular sudoku rules: place the digits 1-9 in every row, column, and box

Parity: Adjacent digits on the red line alternate between even and odd digits

White Kropki Dots: White dots separate consecutive digits that are adjacent to each other along the red line. All dots are given. If two cells both have a red line, but the cells are not adjacent along the path of the line, no dot will be given even if the digits are consecutive. For example, r2c6 and r2c7 both have a red line passing through them, but because the line does not travel immediately from r2c6 to r2c7, the lack of a dot does not mean anything.

Modular lines: There are four single cell cages at the corner of the grid. These individual cages act as a single combined cage. The 4 digits must sum to 16

Negative Diagonal: Digits can not repeat on the marked digital diagonal