Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 5 is invalid. The top center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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