Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 3 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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