Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 4 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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