Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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