Killer Sudoku

Play Killer Sudoku or Sumdoku. Fill the grid with the numbers 1 to 9, such that each row, column and box incorporates each amount best once. Additionally, a Killer Sudoku grid is divided into cages, each cage has its private background color. The values of the cells in a cage will have to sum up to the entire for that cage, confirmed inside the cage's top left corner. The an identical amount cannot appear in a cage more than once.