Langer's Sudoku Assistant

Invalid Sudoku!

Column 9 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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