Langer's Sudoku Assistant

Invalid Sudoku!

Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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