Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 6 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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