The grid is partially covered in fog. Placing correct digits reveals clues in the surrounding 3 by 3 area. "Normal" Schrödinger rules apply: Place the digits 0-9 once each in every row, column and box. Two of the digits will have to share a Schrödinger Cell (S-cell). Each row, column and box contains exactly one S-Cell. S-Cells count as the sum of their digits for all clues. Digits joined by a black dot are in a 1:2 ratio i.e. one is double the other. Not all dots are necessarily given.