Normal sudoku rules apply. Digits cannot appear in the same position in different 3x3 boxes. In box 1: Digits separated by a white dot must be consecutive. (No negative constraint.) In box 2: Digits along the thermometer must increase from the bulb end. In box 3: Digits along the indicated diagonal sum to the given total. In box 4: Digits in the circle must appear in one of the surrounding four cells. In box 5: Digits separated by an X must sum to 10; digits separated by an V must sum to 5. (No negative constraint.) In box 6: Digits along the arrow must sum to the circled digit. In box 7: Digits in the cage must sum to the given total. In box 8: Digits in a circle must be odd. In box 9: Digits separated by a black dot must have a 2:1 ratio. (No negative constraint.)