Logic Masters Deutschland e.V.

I thought I posted this sudoku, apparently I haven't.

Normal sudoku rules apply.

Arrow: The sum of the digits along an arrow must equal the number in the arrow's circle or pill, read left-to-right or top-to-bottom.

Kropki Dots: Cells separated by a black dot must have digits in a 1:2 ratio. Not all Kropki dots are given.

CTC Link

Puzzle:

Have fun solving and happy boxing day I guess.