I hope you enjoy the puzzle. Happy solving!
Rules:
Normal sudoku rules apply.
German Whisper: Adjacent digits along a green German Whispers line must have a difference of at least 5.
Region sum line: Digits along the blue line sum to the same value in each 3x3 box the line passes through. Different lines may have different totals.
Killer: Digits in cages must not repeat, and sum to the small number in the top left corner of the cage.
Renban: Digits along a purple renban line form a sequence of consecutive digits in any order.
Solution code: Column 5 digits from top to bottom.
on 14. September 2023, 23:53 by Ragna
Very interesting puzzle! I had a second run, because it was not easy for me to change between the GW-Line and the RS-Line.
But I had fun and thank you for sharing. :-)