PlaySudoku.us
Easy · Puzzle #970
4
2
9
1
7
8
5
8
5
6
7
7
8
9
4
2
5
6
8
2
1
2
1
4
9
3
6
6
8
4
2
1
9
1
6
4
7
8
6
2
9
3
8
Solving Sudoku is NP-complete for an n×n grid. For the standard 9×9, it's fast — but for larger grids, it becomes exponentially harder.
Solving Sudoku is NP-complete for an n×n grid. For the standard 9×9, it's fast — but for larger grids, it becomes exponentially harder.
Solving Sudoku is NP-complete for an n×n grid. For the standard 9×9, it's fast — but for larger grids, it becomes exponentially harder.
Solving Sudoku is NP-complete for an n×n grid. For the standard 9×9, it's fast — but for larger grids, it becomes exponentially harder.