Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Go back and make a different choice.

 

5
9
4
7
2
8
3
6
1
1
2
3
6
9
4
7
5
8
6
7
8
1
5
3
9
4
2
4
8
9
2
3
7
6
1
5
3
1
2
5
6
9
4
8
7
1  2  3
4  5  6
7  8  9
6
7
4
1
5
2
3
9
1
4
2
9
7
3
8
5
6
9
3
5
8
4
6
2
7
1
7
8
6
5
2
1
3
9
4

 

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