Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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