Sudoku Solver

Loading...
Error: Custom board is unsolvable!


Choose a board:
7 4 8 6
5 1 8 4
4 3 7 9
3 9 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
1 2 3 8
8 2 6 1
7 1 6 4
3 9 5 2
7 1
9 3 1 6
5 3 6 1
7 2 3 9
4 1 9 5
1 8 4 5
5 9 8 3
7 6 1
1 5 2 3
7 5 2 6
3 6 9 4
7 5 6
4 1 6 7
6 9 4 2
9 7 5
1 2
7 1 8
3 6 9
1 5 4
6 2 3
3 2 4
6 5
7 9 1
6 8
3 2 7
7 5 1 6
9 4
8 9 2
8 3
4 7 8 5
2 8 6
5 9
1
2
3
4
7 4 8 6
5 1 8 4
4 3 7 9
3 9 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 2 4 8 6
5 1 8 4
4 3 7 9
3 9 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 3 2 4 8 6
5 1 8 4
4 3 7 9
3 9 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 3 2 4 1 8 6
5 1 8 4
4 3 7 9
3 9 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 3 2 4 1 5 8 6
5 1 8 4
4 3 7 9
3 9 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 3 2 4 1 9 5 8 6
5 1 8 4
4 3 7 9
3 9 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 3 2 4 1 9 5 8 6
6 5 1 8 4
4 3 7 9
3 9 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 3 2 4 1 9 5 8 6
6 5 1 2 8 4
4 3 7 9
3 9 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 9, 3 2 4 1, 9 5, 1, 9 3, 5 8 6
6, 9 5 1 2, 6 8 9 4
4 3 7 9
3 9 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 9, 3 2 4 1, 9 5, 1, 9 3, 5 8 6
6, 9 5 1 2, 6 8 9 4
8 4 3 7 9
3 9 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 7 9
3 9 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 7 9
3 2 9 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 7 9
3 2 9 4 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 6 7 9
3 2 9 4 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 6 7 9
3 2 9 5 4 6 1
2
4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 6 7 9
3 2 9 5 4 6 1
2
1 4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 6 7 9
3 2 9 5 4 6 1
2
1 6 4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 6 7 9
3 2 9 5 4 6 1
7 2
1 6 4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 6 7 9
3 2 9 5 4 6 1
5 7 2
1 6 4 9 7 8
8 1 2 6
6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 6 7 9
3 2 9 5 4 6 1
5 7 2
1 6 4 9 7 8
8 1 2 6
4 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 6 7 9
3 2 9 5 4 6 1
5 7 2
1 6 4 9 7 8
9 8 1 2 6
4 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 6 7 9
3 2 9 5 4 6 1
5 7 2
1 6 4 9 7 8
9 8 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 6 7 9
3 2 9 5 4 6 1
5 7 2
1 6 4 9 7 8
9 8 5 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 6 7 9
3 2 9 5 4 6 1
5 7 8 2
1 6 4 9 7 8
9 8 5 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4
8 4 2 3 6 7 9
3 2 9 7, 5 4 6 1 5
5, 1 7, 6 8 2
1, 5 6 4 9 7 8
9 8 5, 7 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 3
8 4 2 3 6 7 9
3 2 9 7, 5 4 6 1 5
5, 1 7, 6 8 2
1, 5 6 4 9 7 8
9 8 5, 7 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 3
8 4 2 3 6 7 9
3 2 9 7, 5 4 6 1 5
5, 1 7, 6 8 2 4
1, 5 6 4 9 7 8
9 8 5, 7 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3
8 4 2 3 6 7 9
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
5, 1 7, 6 8 2 3, 4, 5
1, 5 6 4 9 7 8
9 8 5, 7 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 9
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
5, 1 7, 6 8 2 3, 4, 5
1, 5 6 4 9 7 8
9 8 5, 7 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 9
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 3, 4, 5
5, 1 6 4 9 7 8
9 8 5, 7 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 9
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 6 3, 4, 5
5, 1 6 4 9 7 8
9 8 5, 7 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 6 3, 4, 5
5, 1 6 4 9 7 8
9 8 5, 7 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5
5, 1 6 4 9 7 8
9 8 5, 7 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5
5, 1 6 4 9 1 7 8
9 8 5, 7 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5
5, 1 6 4 9 3 1 7 8
9 8 5, 7 1 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5
5, 1 6 4 9 3 1 7 8
9 8 5, 7 1 4 2 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5
5, 1 6 4 9 3 1 7 8
9 8 5, 7 1 4 2 3 6
4 3 6 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5
5, 1 6 4 9 3 1 7 8
9 8 5, 7 1 4 2 3 6
4 3 6 7 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9 1
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5
5, 1 6 4 9 3 1 7 8
9 8 5, 7 1 4 2 3 6
4 3 6 7 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9 1
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5 9
5, 1 6 4 9 3 1 7 8
9 8 5, 7 1 4 2 3 6
4 3 6 7 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9 1
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5 9
5, 1 6 4 9 3 1 7 2 8
9 8 5, 7 1 4 2 3 6
4 3 6 7 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9 1
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5 9
5, 1 6 4 9 3 1 7 2 8
9 8 5, 7 1 4 2 3 6 7
4 3 6 7 5 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9 1
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5 9
5, 1 6 4 9 3 1 7 2 8
9 8 5, 7 1 4 2 3 6 7
4 3 6 7 5 8 9 1
2 1 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9 1
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5 9
5, 1 6 4 9 3 1 7 2 8
9 8 5, 7 1 4 2 3 6 7
4 3 6 7 5 8 9 1
2 1 7 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9 1
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5 9
5, 1 6 4 9 3 1 7 2 8
9 8 5, 7 1 4 2 3 6 7
4 3 6 7 5 8 9 1
2 1 7 6 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9 1
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5 9
5, 1 6 4 9 3 1 7 2 8
9 8 5, 7 1 4 2 3 6 7
4 3 6 7 5 8 9 1
2 1 7 6 9 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9 1
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5 9
5, 1 6 4 9 3 1 7 2 8
9 8 5, 7 1 4 2 3 6 7
4 3 6 7 5 8 9 1 2
2 1 7 6 9 3 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9 1
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5 9
5, 1 6 4 9 3 1 7 2 8
9 8 5, 7 1 4 2 3 6 7
4 3 6 7 5 8 9 1 2
2 1 7 6 9 3 8 5
7 9, 2, 3 3, 2 4 1, 9 5, 1, 9 2, 5, 3 8 6
6, 9 5 1 2, 6 8 9 4 7, 3 3
8 4 2 3 6 7 5 9 1
3 2 9 8, 5, 7 7, 4 6 1 5, 4 4
1, 5 7, 6 8 5 2 4 6 3, 4, 5 9
5, 1 6 4 9 3 1 7 2 8
9 8 5, 7 1 4 2 3 6 7
4 3 6 7 5 8 9 1 2
2 1 7 6 9 3 8 4 5
7 9 3 4 1 5 2 8 6
6 5 1 2 8 9 4 7 3
8 4 2 3 6 7 5 9 1
3 2 9 8 7 6 1 5 4
1 7 8 5 2 4 6 3 9
5 6 4 9 3 1 7 2 8
9 8 5 1 4 2 3 6 7
4 3 6 7 5 8 9 1 2
2 1 7 6 9 3 8 4 5