Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Go back and make a different choice.

 

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

 

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