Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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