Space Oddity

Solve Puzzle

Rules

• Normal sudoku rules apply.
  Every row, column, and 3 × 3 box contains all digits 1-9.
• Kropki pair rule applies. (No negative constraints)
  Cells separated by a white dot must be consecutive, and cells separated by a black dot must have a ratio of 1:2. A 1-2 pair can be either a white or black dot. Not all dots are given.
• Killer rule applies.
  Digits in a cage sum to the number written in the corner of the cage. Digits may not repeat in a cage.