Logic Masters Deutschland e.V.

This 6x6 sudoku is very much inspired by tzael's Killer Twins sudoku, and should serve as a short coffee break puzzle or teatime teaser. It also may provide ideas to solve my earlier Tribute Puzzle.

Normal sudoku rules apply (Each row, column and region contains each of the numbers from 1 to 6).

Rules about Normal Killer Cages:
In a normal killer cage, no digit repeats within the cage.
Its cage sum is the total of all the digits in the cage (written at the top of the cage).
In this sudoku, the two blue cages with cage sums 7 and 9 are normal killer cages.

Rules about Killer Twin Cages:
In a killer twin cage, each digit appears exactly twice within the cage.
Its cage sum is the total of all the digits in the cage (written at the top of the cage).
In this sudoku, the two large cages with cage sums 18 and 20 are killer twin cages.

You can try it on Penpa-Edit. Have fun solving!