Logic Masters Deutschland e.V.

Rules:

Normal sudoku, killer and kropki rules apply.

Each box contains one killer cage. The sums for these nine killer cages consist of three distinct values, repeated three times each. The three values are to be determined by the solver. Additionally, considering the 3x3 grid of boxes, no killer cage value repeats in any row or column of boxes.
For example, if the sum of the Box 2 killer cage were 20, none of the killer cages in boxes 1, 3, 5, or 8 could also be 20.

Partial negative constraint: All possible black and white dots inside killer cages are given. Note: Dots outside cages or on cage boundaries are not necessarily given.

Links to play:
CTC
F-Puzzles