Normal sudoku rules apply. Each unique clue type listed below cannot contain more than one instance of each of the digits 1-9. Clue types: a) Digits separated by a white dot are consecutive; b) digits separated by a black dot are in a 1:2 ratio, ie. one digit is double the other; c) digits in cages sum to the total in the upper left corner, if given; d) digits on a pink line form a set of consecutive digits IN ORDER. Eg 123 and 321 are valid length-3 lines but 132 is not; e) digits outside the grid give the sum of the digits on the diagonal pointed to by the arrow; f) each segment on a blue line sums to the same total. Box borders separate a line into segments. The grid is covered in fog. Placing correct digit in a cell may reveal some of the fog, possibly revealing more clues.