Normal Sudoku rules apply.
Anti-knight rules apply. Digits may not appear within a chess knights move of each other.
Assign each cell in a box an index number, starting from the top and going left to right, 1-9.
The arrow cell digit is the distance to the target cell.
The arrow cell index number is equal to the target cell digit.
Not all arrows are given.
Solution code: Column 4, 8
on 23. December 2020, 23:44 by marcmees
Nice.Thanks. Rated the puzzle harder than 2 stars, though.