Langer's Sudoku Assistant

Invalid Sudoku!

Row 9 is invalid. Column 5 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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