Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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