Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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