Langer's Sudoku Assistant

Invalid Sudoku!

Column 1 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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