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.

 

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

 

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