Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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