Each unique clue type listed below cannot contain more than one instance of each of the digits 1-9. Clue types: a) Neighbouring digits on a green German Whisper (GW) line must have a difference of at least 5; b) Every set of three sequential cells on a mint modular (MO) line must contain one digit from (1,4,7), one digit from (2,5,8), and one digits from (3,6,9); c) Neighbouring digits on an orange Dutch Whisper (DW) line must have a difference of at least 4. (DW); d) Neighbouring digits on a red parity (P) line must alternate parity (odd/even); e) Digits in a cage may not repeat and must sum to the clue in the top left of that cage (if given); f) Digits separated by a black dot are in a 1:2 ratio (ie one digit is double the other); g) Cells with a grey square contain an even digit; h) Cells with a grey circle contain an odd digit. Additionally the grid is partially covered in fog. Placing a correct digit may clear fog somewhere in the grid.