Normal sudoku rules apply. Digits on an arrow sum to the digit in the circle of that arrow. Digits on a (‘double arrow’) line sum to the sum of the two circles at the end of the line. All double arrow lines are straight.
Normal sudoku rules apply. Digits on an arrow sum to the digit in the circle of that arrow. Digits on a (‘double arrow’) line sum to the sum of the two circles at the end of the line. All double arrow lines are straight.