Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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