Dutch Flat Mates - Hot and Cold Lines
- Dutch flat mates
- Flat mates
The brief
Normal Sudoku rules apply.
5's live in Dutch Flats: Every 5 in the grid must have a 1 directly above it or a 9 directly below it. It may have both, but it doesn't need both.
Hot and Cold lines: Any red line has a higher total than any blue line.