Considering Sudoku 4Discrete Mathematics Level 5
Using the general principles and goals of a Sudoku puzzle there are many thousands of possible arrangements of digits that would satisfy the conditions for a Sudoku solution.
In order to have the possibility of a proper Sudoku solution still available. Considering only the digits in the two columns and the one row as shown. How many possible different arrangements of digits could be displayed if the two full column as well as one full row are filled with digits? i.e. how many ways to replace the “?”s in the grid shown?