Place the digits 0 through 9 once each in every row, column and box; to enable this, each row, column and box contains exactly one Schrödinger Cell ie a cell that contains two digits. The grid is partially covered in fog; placing correct digits in non-Schrödinger cells will clear the fog from the surrounding area (no guessing is required). Each of the standard clue types below occurs exactly three times in the grid; for each, exactly two of the appearances of that clue are correct and the other is incorrect. The clue types are: - Counting Circles (ie each circled digit counts exactly how many circles contain that digit. All other clue types consider the sum total of a cell as that cell’s value.); - Dutch Whisper - adjacent cells along an orange line must differ in value by at least 4; - German Whisper – adjacent cells along a green line must differ in value by at least 5; - Killer cages - values in a killer cage must sum to small clue in the top left corner of the cage & digits cannot repeat in a cage; - Kropki dots ie cells separated by a white dot must contain consecutive values & cells separated by a black dot must contain values in a 1:2 ratio (ie one value is double the other); and - X/V rules ie cells separated by an X must contain values summing to 10 and cells separated by a V must contain values summing to 5.