Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Column 7 is invalid. Go back and make a different choice.

 

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

 

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