Normal sudoku rules apply. Four yellow killer cages are hiding in the fog. Enter correct digits to clear the nearby fog. No guessing is necessary (or allowed!) Digits in a killer cage sum to the small number in the top left corner of that cage. Digits CAN repeat within a cage. In fact, a digit in a cage indicates exactly how many times that digit appears in that cage. Eg a 5 in a cage means that there are five 5s in that cage. Grey lines are bulbless thermometers ie Digits along a grey line must be arranged in ascending order, from one end to the other. Cells separated by a white dot must contain consecutive digits.