Normal sudoku rules apply. Digits inside grey bubbles must be odd. Digits separated by a white bubble are consecutive. Digits separated by a black bubble have a ratio of 1:2. Not all bubbles are given.
Normal sudoku rules apply. Digits inside grey bubbles must be odd. Digits separated by a white bubble are consecutive. Digits separated by a black bubble have a ratio of 1:2. Not all bubbles are given.