Logic Masters Deutschland e.V.

Rules: Schrödinger Sudoku rules apply. Put the digits 0 to 9 once each into each row, column and box. One cell in each row, column and box is a Schrödinger cell that contains two digits. This cell's value counts as the sum of its digits for the following rule.
Dots: Values on a black lettered dot are in a 1:? ratio, where ? is a positive integer that must be determined. Dots with the same letter represent the same ratio and dots with different letters represent different ratios.
Fog: The grid is partially covered in fog. Placing correct digits will clear the fog from surrounding cells.

Links:
SudokuPad: https://sudokupad.app/5wpee2evas