Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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