Sum Frame Sudoku

  • Place a digit from 1 to 9 into each of the empty squares so that each digit appears exactly once in each of the rows, columns and the nine outlined 3x3 regions.
  • Digits outside the grid indicate the sum of the first 3 digits in the corresponding direction.
  • Sum Frame Sudoku

    Sudokus that no one can solve

    Sudokus that no one can solve, not only including Sodukus which is very difficult but also that no one trying to solve it.

     

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