Langer's Sudoku Assistant

Invalid Sudoku!

Row 6 is invalid. Column 7 is invalid. The middle right 3x3 Box is invalid. Go back and make a different choice.

 

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

 

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