Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 8 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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