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

 

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