Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Go back and make a different choice.

 

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

 

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