Normal sudoku rules apply. Neighbouring digits on the yellow line must differ by at least 3; neighbouring digits on the orange line must differ by at least 4; and neighbouring digits on the green line must differ by at least 5.
Normal sudoku rules apply. Neighbouring digits on the yellow line must differ by at least 3; neighbouring digits on the orange line must differ by at least 4; and neighbouring digits on the green line must differ by at least 5.