MissingNo
Normal sudoku rules apply. Cells that are a knight's move apart cannot be equal. The grey line is a palindrome. Inequalities point to the smaller of the two digits. The two cells marked with * are equal.
Solution code: Row 1
on 4. June 2022, 23:33 by BabaJ
Very nice puzzle, thank you!
on 4. June 2022, 23:32 by Prutsbeest
Beautiful construction!