An Odd Square Ring
- Killer cages
- Whisper lines
- Renban lines
- Odd and even cells
The brief
- Normal Sudoku rules apply.
- Digits along a magenta renban form a set of consecutive non-repeating digits in any order.
- Adjacent digits along a green German Whisper line must have a difference of at least 5.
- Digits in a cage do not repeat and sum to the clue in the top left.
- Cells with a filled circle must be odd.