Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 4 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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