Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 3 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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