Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 6 is invalid. The bottom center 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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