Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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