Logic Masters Deutschland e.V.

Normal Sudoku rules apply. Place the digits 1-9 exactly once in every row, column, and box.
Kropki Pairs: Digits connected by a black dot must be in a 2:1 ratio. Digits connected by a white dot must be consecutive. Not all dots are necessarily given.
Modular Lines: Each set of three digits along a teal line must comprise a full set of the digits modulo 3, i.e. one each of [147], [258], and [369]
Dutch Whispers: Adjacent digits on an orange line must vary by at least 4.

If you liked the interactions in this puzzle, you might also enjoy my pack "Modular Dutch Workshop" which explores the interactions between Modular and Dutch Whisper lines. It is available at: https://tiny.one/rrz-MDWpack