Looking for Phisto
- Anti-knight
- Thermometers
- Whisper lines
- Renban lines
The brief
Standard sudoku rules apply: each row, column, and 3x3 box must contain all the digits from 1 to 9.
The two, separate purple lines each contain a non-repeating set of consecutive digits, in any order.
Adjacent digits on a green line must differ by at least 5.
Digits along the grey thermometer must strictly increase from the bulb to the tip.
Cells which are a chess knight's move apart must contain different digits.