Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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