Langer's Sudoku Assistant

Invalid Sudoku!

Row 8 is invalid. The bottom left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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