Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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