Logic Masters Deutschland e.V.

Rules:

Jigsaw Sudoku rules apply: Each row, each column, and each irregular region must contain all digits from 1 to 9 exactly once, with no repetitions.

Ratio (Kropki) dots: Cells connected by a black dot must contain digits in a scpecified ratio, either 1:2 or 1:3 - specified by the number inside the dot.

Consecutive dots: Cells connected by a white dot must contain consecutive digits.

X/V constraint: Digits in cells linked by an X must add up to 10, and cells linked by an V must add up to 5.

Column indexers: A marked cell in column X indicates the column in which the digit X appears within that row.

Puzzle:

Here!