*There are 3 grid blocks along the top row. Nine grids in total on the page.
Each "grid block" consist of numbers from 1 to 9. In each grid find the missing number.
Sudoku - Grid #1
* click on the BLACK DOT
sudoku999.com - Grid #1
1 to 9 across vertical row 1 to 9 down horizontal column
1 to 9 in each 3 x 3 square grid (top left hand corner)