Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Go back and make a different choice.

 

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

 

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