PlaySudoku.us
Easy · Puzzle #853
6
9
1
3
7
3
2
6
4
1
8
3
7
2
5
1
5
9
8
3
9
8
7
6
5
3
1
9
4
2
3
2
9
5
7
7
8
4
2
2
4
1
6
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.