Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 2 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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