Normal sudoku rules apply.
The inequality sign points towards the smaller digit.
On a white dot, digits are consecutive. Not all such dots are given. On a black dot, one digit is double the other. ALL such dots are given (a 12 pair may have a white dot instead of a black dot, though).
Unique clues : all pair of digits separated by a dot of the same colour are different.
Sudokupad : Click here
Solution code: All digits in row 1, from left to right.
on 25. June 2026, 21:55 by Phantou
Thanks :)
on 25. June 2026, 18:25 by Ambrose
Very well crafted!