A Fast C++ 9X9 Sudoku Solver Program
All 9X9 Sudokus are solved, in about10 milliseconds.
It can also generate a solved Sudoku grid for the user if the user enters an incomplete question.
These are results against the some Sudokus on the Internet:
The tested samples are included in the take_input() function, instructions to verify these are included in the take_input() function.