Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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