Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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