Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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