Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 3 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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