Logic Masters Deutschland e.V.

Quote from testing: "This puzzle lures you in with easy deductions"

Rules:
SUDOKU - Place the digits 1-9 into the grid so each number appears once in every row, column and 3x3 box.
WHITE KROPKI - Digits joined by a white dot is consecutive.
BLACK KROPKI - Digits joined by a black dot means one is double the other.
Not all white and black dots are necessarily given.