Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Go back and make a different choice.

 

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

 

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