Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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