Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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