Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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