Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. Column 4 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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