Langer's Sudoku Assistant

Invalid Sudoku!

Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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