Langer's Sudoku Assistant

Invalid Sudoku!

Row 3 is invalid. Column 4 is invalid. The top right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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