Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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