Normal Dutch Whispers: Adjacent digits on an orange line differ by at least 4.
Normal Renban: All digits on a purple line taken together form a set of consecutive digits, but may appear on the line in any order.
Normal Quadruples: The three digits inside a circle all have to appear at least once in one of the four cells touching the circle.
Play on Sudokupad here.
Solution code: Row 5 of the Sudoku, read from left to right.
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