Who Invited Zero?

Extended Sudoku rules apply, place the digits 0-9 in each row, column, and box, however there will be one digit in each that does not fit. This digit can vary between rows, columns, and boxes and needs to be determined by the solver. Knights Move: Digits seperated by a chess knights move cannot contain the same digit. Arrows: digits along the arrow’s line add up to the digit in the attached circle. Kropki: Digits separated by a black dot are in a ratio of 2:1, and digits separated by a white dot are consecutive. XV: Digits seperated by an X add to 10, those seperated by a V add to 5.