Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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