Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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