Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 9 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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