Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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