Normal sudoku rules apply. Additionally, no digit may appear more than once on a particular clue type. Type 1: Digits on a purple line form a set of non-repeating, consecutive digits in any order. Type 2: Along green lines, adjacent digits must differ by at least 5. Type 3: Digits separated by a black dot have a 1:2 ratio, meaning one is exactly double the other. Type 4: Digits along a grey thermometer must increase from the bulb end. Type 5: Digits along an arrow sum to the digit in that arrow's circle.