Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 2 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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