A Phistful of Circles
- Whisper lines
- Parity lines
The brief
- Normal Sudoku Rules Apply.
- A circled digit indicates exactly how many circles contain that digit.
- Digits along a purple line do not repeat and form a consecutive sequence, but can be arranged in any order.
- Adjacent digits along a green line must have a difference of at least 5.
- Digits along a red line must alternate between odd and even.