Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Go back and make a different choice.

 

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

 

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