Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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