Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Column 9 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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