Normal sudoku rules apply. Digits along an arrow must sum to the digit in that arrow's circle. The green lines are "renban" lines. ie each line contains a set of consecutive, non-repeating digits, in any order.
Normal sudoku rules apply. Digits along an arrow must sum to the digit in that arrow's circle. The green lines are "renban" lines. ie each line contains a set of consecutive, non-repeating digits, in any order.