Not Helpful

All Clues are true. Not all clues are helpful. Normal Sudoku rules apply. Place the digits 1-9 in each row, column and box without repetition. German Whispers: Adjacent digits on a green line must have a difference of at least 5. Killer: Digits in cages must sum to the number in the top left corner of the cage. Digits may not repeat within a cage. Kropki Pairs: Digits separated by a black dot must be in a 2:1 ratio. Digits separated by a white dot must be consecutive. Little Killer: Clues outside the grid with an arrow are the sum of the digits in the cells along the indicated diagonal. Digits may repeat along these diagonals if allowed by other rules. Odd/Even: Digits in bordered light gray circles must be odd. Digits in bordered light gray squares must be even. Quadruples: Digits in a Quadruple circle must be placed at least once in the four cells touching that circle. Region Sum Line: Box borders split blue lines into sections, and the digits on those sections must sum to the same value. Different lines may have different values. Renban: Digits placed on purple lines must be a non-repeating set of consecutive digits, in any order. Thermo: Digits on grey thermos must increase from the bulb to the tip. XV Pairs: Digits separated by an X sum to 10. Digits separated by a V sum to 5.