Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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