Normal sudoku rules apply. Cells that are chess king's move apart cannot contain the same digit. Cells that appear in the same position a box cannot contain the same digit (disjoint group). Orthogonally adjacent cells cannot contain consecutive digits. Digits in a white square must appear at least once in the four cells surrounding it.
Solution code: Row 4 and Row 6 (no spaces)
on 2. December 2022, 12:25 by XhcnoirX
Also didn't use the disjoint rule at all. Nice puzzle tho, flowed very nicely!
on 2. December 2022, 10:13 by wilsig
Didn't use disjoint at all.
on 1. December 2022, 14:28 by sujoyku
Thank you for the fun puzzle, shinggaming! The hardest part for me was not to forget about any of the different restrictions while solving. :)
Of course, it is very cool how strong the constraints are and thus the few given clues already force a unique solution.