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.

 

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

 

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