Logic Masters Deutschland e.V.

Ruleset:

1. Normal Sudoku rules apply.
2. Digits on a grey square must be even.
3. Digits in a cage sum to the indicated clue, if given.
4. Place the digits 1-9 once each in cells with a red clue.
5. The product of the digits on an arrow equals the cage clue of the cage to which it points.
6. Each cage clue appears exactly twice.

The puzzle is also available online in the CtC App. As always, I will greatly appreciate any feedback!