Anti-knight: No two cells that are a chess knight's move apart can contain the same digit.
Palindromes: Digits along the grey lines form palindromes, i.e. they read the same from both directions along the line.
Kropki dots: Two cells that are separated by a white dot contain consecutive digits. If two cells are separated by a black dot, the ratio between the digits in those two cells is 2:1. Not all possible dots are given.
Solve it on f-puzzles:
https://f-puzzles.com/?id=y78y9hgq
Solution code: Row 6 followed by column 6 (18 digits)
on 5. November 2021, 14:29 by Göran H
Added "Online solving tool" tag
on 1. March 2021, 10:12 by Göran H
Edited the description.