Anti-King: The same digit may not appear in diagonally-adjacent cells.
German Whispers: Digits connected by a green line must have a difference of at least 5.
Ratio Pairs: Cells connected by a black dot must contain digits with a ratio of 1/2. Not all black dots are necessarily given.
Solve online:
F-puzzles.com
CtC app
Penpa+
Solution code: Row 2, followed by row 5 (18 digits, no spaces).
on 2. February 2022, 23:11 by Mr.Menace
This was a journey for me, but one worthwhile. Very nice idea and very well executed! Thanks grkles!
on 2. February 2022, 19:04 by Tilberg
Masterpiece. It's comibining beauty, logic and humor. I'm in awe.
on 2. February 2022, 13:14 by PrimeWeasel
Nifty
on 2. February 2022, 12:09 by grkles
Fixed solution code description
on 2. February 2022, 04:01 by grkles
Adding "non-touching" tag