Normal Sudoku, Killer Sudoku and X-V rules apply.
The Anti-knight rule applies (cells a knight's move away cannot have the same digit as the cell). Not all X-V are shown.
Solve online at F-Puzzles
Solution code: Enter the digits from Row 3 followed by the digits from Row 9.
on 18. December 2021, 17:22 by steelwool
not all x-v shown
on 28. September 2021, 20:39 by apendleton
You might want to specify whether or not there's a negative constraint for the XV rule.
-- the negative constraint does not in fact apply, except in a specific sense - the X-V pairs are mirrored over the centre vertical C5 and there are no further mirrored pairs, However, this is not needed to solve the puzzle.