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.

 

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

 

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