Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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