How does the Sudoku solving algorithm work?

How does the Sudoku solving algorithm work?

The Sudoku solving algorithm typically uses a backtracking approach, where it tries to fill the grid by placing numbers 1-9 in empty cells.

What is backtracking in this context?

Backtracking is a method of solving problems incrementally, where you build candidates for solutions and abandon them if they fail to satisfy the constraints.

Are there other methods to solve Sudoku?

Yes, besides backtracking, there are techniques like constraint propagation, dancing links, and even heuristic methods.

Can you give an example of a Sudoku puzzle and how the algorithm would solve it?

Sure! Let's take a simple 4x4 Sudoku. The algorithm would start by filling in the first empty cell and proceed, backtracking if it hits a dead end.