Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 3 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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