Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 7 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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