Langer's Sudoku Assistant

Invalid Sudoku!

Row 7 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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