Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 2 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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