Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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