Logic Masters Deutschland e.V.

• Normal sudoku rules apply:
  In every row, column and un every 3x3 box the digits from 1 to 9 have to appear atleast once.
• Killer cages:
  Digits in cages must sum to the number in the top-left corner and cannot repeat.
• Quadruples:
  Every digit in a circle has to be assigned to one of the surrounding cells.

• All cages have the same total.

Play the puzzle here:

Play in Sudokumaker or in Sven's Sudokupad