Logic Masters Deutschland e.V.

Normal Sudoku rules apply.

5's live in Dutch Flats
All 5's in the grid must strictly have EITHER; a '1' directly above it AND/OR a '9' directly below it. It may have both, but it doesn't need both.
Examples provided below on an empty grid.

Little Killers
The numbers outside the grid indicate what the digits along the diagonals must sum to in total.

Play CTC

This will be a weekly series for as long as my brain allows:
Dutch Flat Mates 1: Classic
Dutch Flat Mates 2: Thermometers
Dutch Flat Mates 3: German Whispers
Dutch Flat Mates 4: Region Sum Lines
Dutch Flat Mates 5: Sandwich Sums
Dutch Flat Mates 6: Little Killer
Dutch Flat Mates 7: Kropki (29 Nov)