Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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