PlaySudoku.us
Easy · Puzzle #574
3
7
6
8
2
8
1
9
3
5
4
9
8
5
3
2
5
4
6
7
5
4
1
6
4
5
9
3
4
9
6
7
8
7
4
5
2
7
2
4
3
9
1
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.