Renban: Digits along a purple form a non-repeating consecutive group, which may appear in any order.
German Whispers: Along a green line consecutive digits must differ by at least 5.
Region Sum Lines: Every line is also a region sum line. Along a line digits must have the same sum within each 3x3 box the line passes through.
f-puzzles: https://f-puzzles.com/?id=2n3534w8
CTC: https://tinyurl.com/3ttv7n64
Solution code: Row 7 + Column 9 (18 digits)
on 14. September 2022, 19:15 by Sonki
Very nice puzzle, thanks!
on 14. September 2022, 12:06 by slowbiex
thanks, that was fun!
on 14. September 2022, 08:15 by Johannes Quack
Nice logic, elegant setting!