Langer's Sudoku Assistant

Invalid Sudoku!

Row 5 is invalid. Column 2 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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