Normal Sudoku rules: Every row, column and box must contain the digits 1-9.
Kropki: Cells separated by a black dot are in a ratio 2:1. Cells separated by a white dot are consecutive.
WARNING: Apologies, I accidentally used the wrong colours for my lines. In this puzzle Purple is German whispers, Green in Renban.
German Whispers: Neighbouring digits on a purple line must differ by at least 5.
Renban: Digits on a green line must be chosen from a consecutive set, in any order.
Box Logic: Within any box N, two orthogonally connected cells must not differ by N. Eg, box 3 could not contain dominoes such as 14, 25, etc. (Dominoes across box boundaries are unconstrained.)
f-puzzles link: https://f-puzzles.com/?id=ydf9c2zh
CtC link: https://tinyurl.com/yp5ef3z8
Solution code: Row 2 followed by row 8 (18 digits)
on 8. February 2022, 23:08 by GorgeousNicko
The usual convention is for German Whispers lines to be green and Renban lines not. Is there a good reason for confounding expectations?
-- oh my apologies, I must have got it the wrong way around by accident. Thanks for the heads up Nicko!
on 8. February 2022, 12:55 by apiyo
Adjusted difficulty.
on 8. February 2022, 12:39 by Bankey
Fun variant. Thanks, @ apiyo :-)
on 8. February 2022, 08:36 by apiyo
Clarified that dominoes across box boundaries are unconstrained by the box logic rules.