Logic Masters Deutschland e.V.

Normal sudoku rules apply.

Modified Killer: The small number at the top left corner of the cages is either a sum or a product. There are two cages of each given value, one of which must be a product, and the other a sum. It's up to the solver to determine which cage is which.

This puzzle is a sequel to my previous Which is Which? puzzle, and follows the same rules.

Solve Which is Which, Again? at the following links:

F-Puzzles
CtC/SudokuPad