Normal sudoku rules apply. Digits along an arrow sum to the number in the circle. Digits separated by a white dot have a difference of one while digits separated by a black dot are in a 1:2 ratio. Not all dots are given.
Normal sudoku rules apply. Digits along an arrow sum to the number in the circle. Digits separated by a white dot have a difference of one while digits separated by a black dot are in a 1:2 ratio. Not all dots are given.