Langer's Sudoku Assistant

Invalid Sudoku!

Row 2 is invalid. Go back and make a different choice.

 

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

 

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