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.

 

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

 

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