Parity in the fog

Normal sudoku rules apply. Place the digits 1-9 once each in every row, column and 3x3 box. The grid is covered in fog, placing a correct digit will clear the surrounding cells to that digit. No bifurcation is needed. Cells separated by a knights move (in chess) cannot contain the same digit. Digits on a red line alternate between odd and even. There is only ONE parity line in the puzzle. Digits on an orange line alternate between low (123), medium (456) and high (789). A set of three connected along the line must contain one of each. Clues outside the grid sum the digits in the indicated diagonal (digits may repeat). Cells separated by an X sum to 10. Cells separated by a V sum to 5. Not all Xs and Vs are necessarily given.