Backtracking

9×9 Sudoku Solver

Completes a 9×9 board by trying valid numbers and undoing choices that block the solution.

Learn with an interactive visualization

Category: Backtracking. Complexity: Exponential O(9^m).

Completes a 9×9 board by trying valid numbers and undoing choices that block the solution. Interactive visualization, Java code, operations, complexity,…