Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 7 is invalid. The bottom right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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