Implement Sudoku Cheat

Implement the solveSudoku method as required to create a functional Sudoku solver. This solver should be able to solve any Sudoku problem with a single click by using brute-force methods.

After completing the code, please click the "Submit" button to let the algorithm solve the Sudoku problem. Once completed, you can click the "Replay" button to view the process of brute-force solving.