Normal sudoku rules apply. Digits along an arrow must sum to the digit in that arrow's circle. Cells separated by a black dot have a ratio of 1:2. Cells separated by a white dot have a difference of 1. Not all dots are given.
Normal sudoku rules apply. Digits along an arrow must sum to the digit in that arrow's circle. Cells separated by a black dot have a ratio of 1:2. Cells separated by a white dot have a difference of 1. Not all dots are given.