Langer's Sudoku Assistant

Invalid Sudoku!

Row 4 is invalid. Column 5 is invalid. The middle center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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