Last leftover puzzle from the DSM qualifier.
Fill the grid with digits 1 to 9 so that each digit occurs exactly once in each row, column and 3x3 box. Cells that are a chess knights move away from each other may not contain the same digit.
Solution code: Column 1, Row 9.
on 30. August 2021, 02:20 by Realshaggy
Revised labels.
on 27. February 2021, 16:39 by wentel21
Very nice puzzle <3
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