Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Go back and make a different choice.

 

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

 

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