Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 1 is invalid. The middle left 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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