Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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