Langer's Sudoku Assistant

Invalid Sudoku!

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

 

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

 

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