Broken Propeller
- Whisper lines
- Little killers
The brief
Standard sudoku rules apply: each row, column, and 3x3 box must contain all the digits from 1 to 9.
Whisper-5 lines: adjacent digits along a green line must have a difference of at least 5.
Little Killer Sums: a clue with an arrow outside the grid gives the sum of the digits along the diagonal indicated by the arrow.