Langer's Sudoku Assistant

Invalid Sudoku!

Column 8 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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