Normal sudoku rules apply. 1) Digits on a purple Renban (RB) line form a non-repeating set of consecutive digits. 2) The 3x3 box borders divide blue Region Sum (RS) lines into segments with the same sum. 3) Neighbouring digits on a green German Whisper (GW) line must have a difference if at least 5. 4) Neighbouring digits on a red line (P) must alternate parity. 5) Digits separated by a black dot are in a 1:2 ratio (ie one digit must be double the other). 6) Digits separated by a white dot are consecutive. 7) Cells with a grey square contain an even digit. Each constraint type may contain no repeated digits anywhere in this puzzle. Eg. If one renban line contains a 5, then no other renban line may contain a 5. Additionally the grid is partially covered in fog. Placing a correct digit may clear fog somewhere in the grid.