Rules of Frame Sudoku
Place a digit from 1 to 9 into each of the empty cells so that each digit appears exactly once in each row, column and 3x3 outlined box. Additionally numbers outside the grid equal the sum of the digits appearing in the cells in the first box (till the next bold line) seen from that edge of the grid.
Additionally numbers outside the grid equal the sum of the digits appearing in the cells in the first box (till the next bold line) seen from that edge of the grid.
Frame Sudoku is known with many different names such as Outside Sums Sudoku or Sum Frame Sudoku. However generic name for this Sudoku type is Frame Sudoku. In this Sudoku type outside given hints gives the sums of the digits appearing in the first box for corresponding row or column.