Toroidal Killer Sudoku Pro puzzle

Here’s something that I’ve actually never seen before – Killer Sudoku with toroidal cages.  Perhaps there’s a good reason for that, but it’s time to find out. :)    This is actually a Killer Sudoku Pro, so it doesn’t just involve addition – but you cannot repeat a number in a cage, unlike in CalcuDoku.

So the rules are:

  • Place 1 to 9 into each row, column and bold-lined 3×3 box
  • Place numbers in each cage to add/multiply/subtract/divide up to the total at the top-left of each cage
  • Numbers may not repeat in a cage
  • Some cages wrap around the edges of the puzzles, continuing directly opposite

This is rated ‘gentle’, and none of the toroidal cages are very large so shouldn’t be too confusing to follow (I hope!).

Good luck!