German Whispers: Adjacent digits along a green line must differ by at least 5.
Renban: Digits along a purple line form a non-repeating consecutive set in any order.
Between Lines: Digits along a between line must be strictly between the digits appearing in the connected circles.
f-puzzles: https://f-puzzles.com/?id=ya9mkpsc
CTC: https://tinyurl.com/mr2etdjx
Solution code: Row 1 + Column 9 (18 digits)